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1 /* Copyright 2008-2013 Broadcom Corporation
2  *
3  * Unless you and Broadcom execute a separate written software license
4  * agreement governing use of this software, this software is licensed to you
5  * under the terms of the GNU General Public License version 2, available
6  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
7  *
8  * Notwithstanding the above, under no circumstances may you combine this
9  * software in any way with any other Broadcom software provided under a
10  * license other than the GPL, without Broadcom's express prior written
11  * consent.
12  *
13  * Written by Yaniv Rosner
14  *
15  */
16 
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18 
19 #include <linux/kernel.h>
20 #include <linux/errno.h>
21 #include <linux/pci.h>
22 #include <linux/netdevice.h>
23 #include <linux/delay.h>
24 #include <linux/ethtool.h>
25 #include <linux/mutex.h>
26 
27 #include "bnx2x.h"
28 #include "bnx2x_cmn.h"
29 
30 typedef int (*read_sfp_module_eeprom_func_p)(struct bnx2x_phy *phy,
31 					     struct link_params *params,
32 					     u8 dev_addr, u16 addr, u8 byte_cnt,
33 					     u8 *o_buf, u8);
34 /********************************************************/
35 #define ETH_HLEN			14
36 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
37 #define ETH_OVREHEAD			(ETH_HLEN + 8 + 8)
38 #define ETH_MIN_PACKET_SIZE		60
39 #define ETH_MAX_PACKET_SIZE		1500
40 #define ETH_MAX_JUMBO_PACKET_SIZE	9600
41 #define MDIO_ACCESS_TIMEOUT		1000
42 #define WC_LANE_MAX			4
43 #define I2C_SWITCH_WIDTH		2
44 #define I2C_BSC0			0
45 #define I2C_BSC1			1
46 #define I2C_WA_RETRY_CNT		3
47 #define I2C_WA_PWR_ITER			(I2C_WA_RETRY_CNT - 1)
48 #define MCPR_IMC_COMMAND_READ_OP	1
49 #define MCPR_IMC_COMMAND_WRITE_OP	2
50 
51 /* LED Blink rate that will achieve ~15.9Hz */
52 #define LED_BLINK_RATE_VAL_E3		354
53 #define LED_BLINK_RATE_VAL_E1X_E2	480
54 /***********************************************************/
55 /*			Shortcut definitions		   */
56 /***********************************************************/
57 
58 #define NIG_LATCH_BC_ENABLE_MI_INT 0
59 
60 #define NIG_STATUS_EMAC0_MI_INT \
61 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_EMAC0_MISC_MI_INT
62 #define NIG_STATUS_XGXS0_LINK10G \
63 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK10G
64 #define NIG_STATUS_XGXS0_LINK_STATUS \
65 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS
66 #define NIG_STATUS_XGXS0_LINK_STATUS_SIZE \
67 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS_SIZE
68 #define NIG_STATUS_SERDES0_LINK_STATUS \
69 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_SERDES0_LINK_STATUS
70 #define NIG_MASK_MI_INT \
71 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_EMAC0_MISC_MI_INT
72 #define NIG_MASK_XGXS0_LINK10G \
73 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK10G
74 #define NIG_MASK_XGXS0_LINK_STATUS \
75 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK_STATUS
76 #define NIG_MASK_SERDES0_LINK_STATUS \
77 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_SERDES0_LINK_STATUS
78 
79 #define MDIO_AN_CL73_OR_37_COMPLETE \
80 		(MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | \
81 		 MDIO_GP_STATUS_TOP_AN_STATUS1_CL37_AUTONEG_COMPLETE)
82 
83 #define XGXS_RESET_BITS \
84 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_RSTB_HW |   \
85 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_IDDQ |      \
86 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN |    \
87 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN_SD | \
88 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_TXD_FIFO_RSTB)
89 
90 #define SERDES_RESET_BITS \
91 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_RSTB_HW | \
92 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_IDDQ |    \
93 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN |  \
94 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN_SD)
95 
96 #define AUTONEG_CL37		SHARED_HW_CFG_AN_ENABLE_CL37
97 #define AUTONEG_CL73		SHARED_HW_CFG_AN_ENABLE_CL73
98 #define AUTONEG_BAM		SHARED_HW_CFG_AN_ENABLE_BAM
99 #define AUTONEG_PARALLEL \
100 				SHARED_HW_CFG_AN_ENABLE_PARALLEL_DETECTION
101 #define AUTONEG_SGMII_FIBER_AUTODET \
102 				SHARED_HW_CFG_AN_EN_SGMII_FIBER_AUTO_DETECT
103 #define AUTONEG_REMOTE_PHY	SHARED_HW_CFG_AN_ENABLE_REMOTE_PHY
104 
105 #define GP_STATUS_PAUSE_RSOLUTION_TXSIDE \
106 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_TXSIDE
107 #define GP_STATUS_PAUSE_RSOLUTION_RXSIDE \
108 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_RXSIDE
109 #define GP_STATUS_SPEED_MASK \
110 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_MASK
111 #define GP_STATUS_10M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10M
112 #define GP_STATUS_100M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_100M
113 #define GP_STATUS_1G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G
114 #define GP_STATUS_2_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_2_5G
115 #define GP_STATUS_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_5G
116 #define GP_STATUS_6G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_6G
117 #define GP_STATUS_10G_HIG \
118 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_HIG
119 #define GP_STATUS_10G_CX4 \
120 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_CX4
121 #define GP_STATUS_1G_KX MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G_KX
122 #define GP_STATUS_10G_KX4 \
123 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KX4
124 #define	GP_STATUS_10G_KR MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KR
125 #define	GP_STATUS_10G_XFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_XFI
126 #define	GP_STATUS_20G_DXGXS MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_DXGXS
127 #define	GP_STATUS_10G_SFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_SFI
128 #define	GP_STATUS_20G_KR2 MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_KR2
129 #define LINK_10THD		LINK_STATUS_SPEED_AND_DUPLEX_10THD
130 #define LINK_10TFD		LINK_STATUS_SPEED_AND_DUPLEX_10TFD
131 #define LINK_100TXHD		LINK_STATUS_SPEED_AND_DUPLEX_100TXHD
132 #define LINK_100T4		LINK_STATUS_SPEED_AND_DUPLEX_100T4
133 #define LINK_100TXFD		LINK_STATUS_SPEED_AND_DUPLEX_100TXFD
134 #define LINK_1000THD		LINK_STATUS_SPEED_AND_DUPLEX_1000THD
135 #define LINK_1000TFD		LINK_STATUS_SPEED_AND_DUPLEX_1000TFD
136 #define LINK_1000XFD		LINK_STATUS_SPEED_AND_DUPLEX_1000XFD
137 #define LINK_2500THD		LINK_STATUS_SPEED_AND_DUPLEX_2500THD
138 #define LINK_2500TFD		LINK_STATUS_SPEED_AND_DUPLEX_2500TFD
139 #define LINK_2500XFD		LINK_STATUS_SPEED_AND_DUPLEX_2500XFD
140 #define LINK_10GTFD		LINK_STATUS_SPEED_AND_DUPLEX_10GTFD
141 #define LINK_10GXFD		LINK_STATUS_SPEED_AND_DUPLEX_10GXFD
142 #define LINK_20GTFD		LINK_STATUS_SPEED_AND_DUPLEX_20GTFD
143 #define LINK_20GXFD		LINK_STATUS_SPEED_AND_DUPLEX_20GXFD
144 
145 #define LINK_UPDATE_MASK \
146 			(LINK_STATUS_SPEED_AND_DUPLEX_MASK | \
147 			 LINK_STATUS_LINK_UP | \
148 			 LINK_STATUS_PHYSICAL_LINK_FLAG | \
149 			 LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \
150 			 LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \
151 			 LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \
152 			 LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \
153 			 LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \
154 			 LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE)
155 
156 #define SFP_EEPROM_CON_TYPE_ADDR		0x2
157 	#define SFP_EEPROM_CON_TYPE_VAL_LC	0x7
158 	#define SFP_EEPROM_CON_TYPE_VAL_COPPER	0x21
159 	#define SFP_EEPROM_CON_TYPE_VAL_RJ45	0x22
160 
161 
162 #define SFP_EEPROM_COMP_CODE_ADDR		0x3
163 	#define SFP_EEPROM_COMP_CODE_SR_MASK	(1<<4)
164 	#define SFP_EEPROM_COMP_CODE_LR_MASK	(1<<5)
165 	#define SFP_EEPROM_COMP_CODE_LRM_MASK	(1<<6)
166 
167 #define SFP_EEPROM_FC_TX_TECH_ADDR		0x8
168 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE 0x4
169 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE  0x8
170 
171 #define SFP_EEPROM_OPTIONS_ADDR			0x40
172 	#define SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK 0x1
173 #define SFP_EEPROM_OPTIONS_SIZE			2
174 
175 #define EDC_MODE_LINEAR				0x0022
176 #define EDC_MODE_LIMITING				0x0044
177 #define EDC_MODE_PASSIVE_DAC			0x0055
178 
179 /* ETS defines*/
180 #define DCBX_INVALID_COS					(0xFF)
181 
182 #define ETS_BW_LIMIT_CREDIT_UPPER_BOUND		(0x5000)
183 #define ETS_BW_LIMIT_CREDIT_WEIGHT		(0x5000)
184 #define ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS		(1360)
185 #define ETS_E3B0_NIG_MIN_W_VAL_20GBPS			(2720)
186 #define ETS_E3B0_PBF_MIN_W_VAL				(10000)
187 
188 #define MAX_PACKET_SIZE					(9700)
189 #define MAX_KR_LINK_RETRY				4
190 
191 /**********************************************************/
192 /*                     INTERFACE                          */
193 /**********************************************************/
194 
195 #define CL22_WR_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
196 	bnx2x_cl45_write(_bp, _phy, \
197 		(_phy)->def_md_devad, \
198 		(_bank + (_addr & 0xf)), \
199 		_val)
200 
201 #define CL22_RD_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
202 	bnx2x_cl45_read(_bp, _phy, \
203 		(_phy)->def_md_devad, \
204 		(_bank + (_addr & 0xf)), \
205 		_val)
206 
bnx2x_bits_en(struct bnx2x * bp,u32 reg,u32 bits)207 static u32 bnx2x_bits_en(struct bnx2x *bp, u32 reg, u32 bits)
208 {
209 	u32 val = REG_RD(bp, reg);
210 
211 	val |= bits;
212 	REG_WR(bp, reg, val);
213 	return val;
214 }
215 
bnx2x_bits_dis(struct bnx2x * bp,u32 reg,u32 bits)216 static u32 bnx2x_bits_dis(struct bnx2x *bp, u32 reg, u32 bits)
217 {
218 	u32 val = REG_RD(bp, reg);
219 
220 	val &= ~bits;
221 	REG_WR(bp, reg, val);
222 	return val;
223 }
224 
225 /*
226  * bnx2x_check_lfa - This function checks if link reinitialization is required,
227  *                   or link flap can be avoided.
228  *
229  * @params:	link parameters
230  * Returns 0 if Link Flap Avoidance conditions are met otherwise, the failed
231  *         condition code.
232  */
bnx2x_check_lfa(struct link_params * params)233 static int bnx2x_check_lfa(struct link_params *params)
234 {
235 	u32 link_status, cfg_idx, lfa_mask, cfg_size;
236 	u32 cur_speed_cap_mask, cur_req_fc_auto_adv, additional_config;
237 	u32 saved_val, req_val, eee_status;
238 	struct bnx2x *bp = params->bp;
239 
240 	additional_config =
241 		REG_RD(bp, params->lfa_base +
242 			   offsetof(struct shmem_lfa, additional_config));
243 
244 	/* NOTE: must be first condition checked -
245 	* to verify DCC bit is cleared in any case!
246 	*/
247 	if (additional_config & NO_LFA_DUE_TO_DCC_MASK) {
248 		DP(NETIF_MSG_LINK, "No LFA due to DCC flap after clp exit\n");
249 		REG_WR(bp, params->lfa_base +
250 			   offsetof(struct shmem_lfa, additional_config),
251 		       additional_config & ~NO_LFA_DUE_TO_DCC_MASK);
252 		return LFA_DCC_LFA_DISABLED;
253 	}
254 
255 	/* Verify that link is up */
256 	link_status = REG_RD(bp, params->shmem_base +
257 			     offsetof(struct shmem_region,
258 				      port_mb[params->port].link_status));
259 	if (!(link_status & LINK_STATUS_LINK_UP))
260 		return LFA_LINK_DOWN;
261 
262 	/* if loaded after BOOT from SAN, don't flap the link in any case and
263 	 * rely on link set by preboot driver
264 	 */
265 	if (params->feature_config_flags & FEATURE_CONFIG_BOOT_FROM_SAN)
266 		return 0;
267 
268 	/* Verify that loopback mode is not set */
269 	if (params->loopback_mode)
270 		return LFA_LOOPBACK_ENABLED;
271 
272 	/* Verify that MFW supports LFA */
273 	if (!params->lfa_base)
274 		return LFA_MFW_IS_TOO_OLD;
275 
276 	if (params->num_phys == 3) {
277 		cfg_size = 2;
278 		lfa_mask = 0xffffffff;
279 	} else {
280 		cfg_size = 1;
281 		lfa_mask = 0xffff;
282 	}
283 
284 	/* Compare Duplex */
285 	saved_val = REG_RD(bp, params->lfa_base +
286 			   offsetof(struct shmem_lfa, req_duplex));
287 	req_val = params->req_duplex[0] | (params->req_duplex[1] << 16);
288 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
289 		DP(NETIF_MSG_LINK, "Duplex mismatch %x vs. %x\n",
290 			       (saved_val & lfa_mask), (req_val & lfa_mask));
291 		return LFA_DUPLEX_MISMATCH;
292 	}
293 	/* Compare Flow Control */
294 	saved_val = REG_RD(bp, params->lfa_base +
295 			   offsetof(struct shmem_lfa, req_flow_ctrl));
296 	req_val = params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16);
297 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
298 		DP(NETIF_MSG_LINK, "Flow control mismatch %x vs. %x\n",
299 			       (saved_val & lfa_mask), (req_val & lfa_mask));
300 		return LFA_FLOW_CTRL_MISMATCH;
301 	}
302 	/* Compare Link Speed */
303 	saved_val = REG_RD(bp, params->lfa_base +
304 			   offsetof(struct shmem_lfa, req_line_speed));
305 	req_val = params->req_line_speed[0] | (params->req_line_speed[1] << 16);
306 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
307 		DP(NETIF_MSG_LINK, "Link speed mismatch %x vs. %x\n",
308 			       (saved_val & lfa_mask), (req_val & lfa_mask));
309 		return LFA_LINK_SPEED_MISMATCH;
310 	}
311 
312 	for (cfg_idx = 0; cfg_idx < cfg_size; cfg_idx++) {
313 		cur_speed_cap_mask = REG_RD(bp, params->lfa_base +
314 					    offsetof(struct shmem_lfa,
315 						     speed_cap_mask[cfg_idx]));
316 
317 		if (cur_speed_cap_mask != params->speed_cap_mask[cfg_idx]) {
318 			DP(NETIF_MSG_LINK, "Speed Cap mismatch %x vs. %x\n",
319 				       cur_speed_cap_mask,
320 				       params->speed_cap_mask[cfg_idx]);
321 			return LFA_SPEED_CAP_MISMATCH;
322 		}
323 	}
324 
325 	cur_req_fc_auto_adv =
326 		REG_RD(bp, params->lfa_base +
327 		       offsetof(struct shmem_lfa, additional_config)) &
328 		REQ_FC_AUTO_ADV_MASK;
329 
330 	if ((u16)cur_req_fc_auto_adv != params->req_fc_auto_adv) {
331 		DP(NETIF_MSG_LINK, "Flow Ctrl AN mismatch %x vs. %x\n",
332 			       cur_req_fc_auto_adv, params->req_fc_auto_adv);
333 		return LFA_FLOW_CTRL_MISMATCH;
334 	}
335 
336 	eee_status = REG_RD(bp, params->shmem2_base +
337 			    offsetof(struct shmem2_region,
338 				     eee_status[params->port]));
339 
340 	if (((eee_status & SHMEM_EEE_LPI_REQUESTED_BIT) ^
341 	     (params->eee_mode & EEE_MODE_ENABLE_LPI)) ||
342 	    ((eee_status & SHMEM_EEE_REQUESTED_BIT) ^
343 	     (params->eee_mode & EEE_MODE_ADV_LPI))) {
344 		DP(NETIF_MSG_LINK, "EEE mismatch %x vs. %x\n", params->eee_mode,
345 			       eee_status);
346 		return LFA_EEE_MISMATCH;
347 	}
348 
349 	/* LFA conditions are met */
350 	return 0;
351 }
352 /******************************************************************/
353 /*			EPIO/GPIO section			  */
354 /******************************************************************/
bnx2x_get_epio(struct bnx2x * bp,u32 epio_pin,u32 * en)355 static void bnx2x_get_epio(struct bnx2x *bp, u32 epio_pin, u32 *en)
356 {
357 	u32 epio_mask, gp_oenable;
358 	*en = 0;
359 	/* Sanity check */
360 	if (epio_pin > 31) {
361 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to get\n", epio_pin);
362 		return;
363 	}
364 
365 	epio_mask = 1 << epio_pin;
366 	/* Set this EPIO to output */
367 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
368 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable & ~epio_mask);
369 
370 	*en = (REG_RD(bp, MCP_REG_MCPR_GP_INPUTS) & epio_mask) >> epio_pin;
371 }
bnx2x_set_epio(struct bnx2x * bp,u32 epio_pin,u32 en)372 static void bnx2x_set_epio(struct bnx2x *bp, u32 epio_pin, u32 en)
373 {
374 	u32 epio_mask, gp_output, gp_oenable;
375 
376 	/* Sanity check */
377 	if (epio_pin > 31) {
378 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to set\n", epio_pin);
379 		return;
380 	}
381 	DP(NETIF_MSG_LINK, "Setting EPIO pin %d to %d\n", epio_pin, en);
382 	epio_mask = 1 << epio_pin;
383 	/* Set this EPIO to output */
384 	gp_output = REG_RD(bp, MCP_REG_MCPR_GP_OUTPUTS);
385 	if (en)
386 		gp_output |= epio_mask;
387 	else
388 		gp_output &= ~epio_mask;
389 
390 	REG_WR(bp, MCP_REG_MCPR_GP_OUTPUTS, gp_output);
391 
392 	/* Set the value for this EPIO */
393 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
394 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable | epio_mask);
395 }
396 
bnx2x_set_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 val)397 static void bnx2x_set_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 val)
398 {
399 	if (pin_cfg == PIN_CFG_NA)
400 		return;
401 	if (pin_cfg >= PIN_CFG_EPIO0) {
402 		bnx2x_set_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
403 	} else {
404 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
405 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
406 		bnx2x_set_gpio(bp, gpio_num, (u8)val, gpio_port);
407 	}
408 }
409 
bnx2x_get_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 * val)410 static u32 bnx2x_get_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 *val)
411 {
412 	if (pin_cfg == PIN_CFG_NA)
413 		return -EINVAL;
414 	if (pin_cfg >= PIN_CFG_EPIO0) {
415 		bnx2x_get_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
416 	} else {
417 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
418 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
419 		*val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
420 	}
421 	return 0;
422 
423 }
424 /******************************************************************/
425 /*				ETS section			  */
426 /******************************************************************/
bnx2x_ets_e2e3a0_disabled(struct link_params * params)427 static void bnx2x_ets_e2e3a0_disabled(struct link_params *params)
428 {
429 	/* ETS disabled configuration*/
430 	struct bnx2x *bp = params->bp;
431 
432 	DP(NETIF_MSG_LINK, "ETS E2E3 disabled configuration\n");
433 
434 	/* mapping between entry  priority to client number (0,1,2 -debug and
435 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
436 	 * 3bits client num.
437 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
438 	 * cos1-100     cos0-011     dbg1-010     dbg0-001     MCP-000
439 	 */
440 
441 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, 0x4688);
442 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
443 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
444 	 * COS0 entry, 4 - COS1 entry.
445 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
446 	 * bit4   bit3	  bit2   bit1	  bit0
447 	 * MCP and debug are strict
448 	 */
449 
450 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
451 	/* defines which entries (clients) are subjected to WFQ arbitration */
452 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
453 	/* For strict priority entries defines the number of consecutive
454 	 * slots for the highest priority.
455 	 */
456 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
457 	/* mapping between the CREDIT_WEIGHT registers and actual client
458 	 * numbers
459 	 */
460 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0);
461 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0);
462 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0);
463 
464 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, 0);
465 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, 0);
466 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, 0);
467 	/* ETS mode disable */
468 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
469 	/* If ETS mode is enabled (there is no strict priority) defines a WFQ
470 	 * weight for COS0/COS1.
471 	 */
472 	REG_WR(bp, PBF_REG_COS0_WEIGHT, 0x2710);
473 	REG_WR(bp, PBF_REG_COS1_WEIGHT, 0x2710);
474 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter */
475 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND, 0x989680);
476 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND, 0x989680);
477 	/* Defines the number of consecutive slots for the strict priority */
478 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
479 }
480 /******************************************************************************
481 * Description:
482 *	Getting min_w_val will be set according to line speed .
483 *.
484 ******************************************************************************/
bnx2x_ets_get_min_w_val_nig(const struct link_vars * vars)485 static u32 bnx2x_ets_get_min_w_val_nig(const struct link_vars *vars)
486 {
487 	u32 min_w_val = 0;
488 	/* Calculate min_w_val.*/
489 	if (vars->link_up) {
490 		if (vars->line_speed == SPEED_20000)
491 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
492 		else
493 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS;
494 	} else
495 		min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
496 	/* If the link isn't up (static configuration for example ) The
497 	 * link will be according to 20GBPS.
498 	 */
499 	return min_w_val;
500 }
501 /******************************************************************************
502 * Description:
503 *	Getting credit upper bound form min_w_val.
504 *.
505 ******************************************************************************/
bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)506 static u32 bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)
507 {
508 	const u32 credit_upper_bound = (u32)MAXVAL((150 * min_w_val),
509 						MAX_PACKET_SIZE);
510 	return credit_upper_bound;
511 }
512 /******************************************************************************
513 * Description:
514 *	Set credit upper bound for NIG.
515 *.
516 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_nig(const struct link_params * params,const u32 min_w_val)517 static void bnx2x_ets_e3b0_set_credit_upper_bound_nig(
518 	const struct link_params *params,
519 	const u32 min_w_val)
520 {
521 	struct bnx2x *bp = params->bp;
522 	const u8 port = params->port;
523 	const u32 credit_upper_bound =
524 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
525 
526 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_0 :
527 		NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, credit_upper_bound);
528 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_1 :
529 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, credit_upper_bound);
530 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_2 :
531 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_2, credit_upper_bound);
532 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_3 :
533 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_3, credit_upper_bound);
534 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_4 :
535 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_4, credit_upper_bound);
536 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_5 :
537 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_5, credit_upper_bound);
538 
539 	if (!port) {
540 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_6,
541 			credit_upper_bound);
542 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_7,
543 			credit_upper_bound);
544 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_8,
545 			credit_upper_bound);
546 	}
547 }
548 /******************************************************************************
549 * Description:
550 *	Will return the NIG ETS registers to init values.Except
551 *	credit_upper_bound.
552 *	That isn't used in this configuration (No WFQ is enabled) and will be
553 *	configured acording to spec
554 *.
555 ******************************************************************************/
bnx2x_ets_e3b0_nig_disabled(const struct link_params * params,const struct link_vars * vars)556 static void bnx2x_ets_e3b0_nig_disabled(const struct link_params *params,
557 					const struct link_vars *vars)
558 {
559 	struct bnx2x *bp = params->bp;
560 	const u8 port = params->port;
561 	const u32 min_w_val = bnx2x_ets_get_min_w_val_nig(vars);
562 	/* Mapping between entry  priority to client number (0,1,2 -debug and
563 	 * management clients, 3 - COS0 client, 4 - COS1, ... 8 -
564 	 * COS5)(HIGHEST) 4bits client num.TODO_ETS - Should be done by
565 	 * reset value or init tool
566 	 */
567 	if (port) {
568 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB, 0x543210);
569 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_MSB, 0x0);
570 	} else {
571 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB, 0x76543210);
572 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB, 0x8);
573 	}
574 	/* For strict priority entries defines the number of consecutive
575 	 * slots for the highest priority.
576 	 */
577 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
578 		   NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
579 	/* Mapping between the CREDIT_WEIGHT registers and actual client
580 	 * numbers
581 	 */
582 	if (port) {
583 		/*Port 1 has 6 COS*/
584 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_LSB, 0x210543);
585 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x0);
586 	} else {
587 		/*Port 0 has 9 COS*/
588 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_LSB,
589 		       0x43210876);
590 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x5);
591 	}
592 
593 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
594 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
595 	 * COS0 entry, 4 - COS1 entry.
596 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
597 	 * bit4   bit3	  bit2   bit1	  bit0
598 	 * MCP and debug are strict
599 	 */
600 	if (port)
601 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT, 0x3f);
602 	else
603 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1ff);
604 	/* defines which entries (clients) are subjected to WFQ arbitration */
605 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
606 		   NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
607 
608 	/* Please notice the register address are note continuous and a
609 	 * for here is note appropriate.In 2 port mode port0 only COS0-5
610 	 * can be used. DEBUG1,DEBUG1,MGMT are never used for WFQ* In 4
611 	 * port mode port1 only COS0-2 can be used. DEBUG1,DEBUG1,MGMT
612 	 * are never used for WFQ
613 	 */
614 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
615 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0x0);
616 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
617 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0x0);
618 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
619 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2, 0x0);
620 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_3 :
621 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3, 0x0);
622 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_4 :
623 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4, 0x0);
624 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_5 :
625 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5, 0x0);
626 	if (!port) {
627 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_6, 0x0);
628 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_7, 0x0);
629 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_8, 0x0);
630 	}
631 
632 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val);
633 }
634 /******************************************************************************
635 * Description:
636 *	Set credit upper bound for PBF.
637 *.
638 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_pbf(const struct link_params * params,const u32 min_w_val)639 static void bnx2x_ets_e3b0_set_credit_upper_bound_pbf(
640 	const struct link_params *params,
641 	const u32 min_w_val)
642 {
643 	struct bnx2x *bp = params->bp;
644 	const u32 credit_upper_bound =
645 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
646 	const u8 port = params->port;
647 	u32 base_upper_bound = 0;
648 	u8 max_cos = 0;
649 	u8 i = 0;
650 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.In 4
651 	 * port mode port1 has COS0-2 that can be used for WFQ.
652 	 */
653 	if (!port) {
654 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P0;
655 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
656 	} else {
657 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P1;
658 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
659 	}
660 
661 	for (i = 0; i < max_cos; i++)
662 		REG_WR(bp, base_upper_bound + (i << 2), credit_upper_bound);
663 }
664 
665 /******************************************************************************
666 * Description:
667 *	Will return the PBF ETS registers to init values.Except
668 *	credit_upper_bound.
669 *	That isn't used in this configuration (No WFQ is enabled) and will be
670 *	configured acording to spec
671 *.
672 ******************************************************************************/
bnx2x_ets_e3b0_pbf_disabled(const struct link_params * params)673 static void bnx2x_ets_e3b0_pbf_disabled(const struct link_params *params)
674 {
675 	struct bnx2x *bp = params->bp;
676 	const u8 port = params->port;
677 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
678 	u8 i = 0;
679 	u32 base_weight = 0;
680 	u8 max_cos = 0;
681 
682 	/* Mapping between entry  priority to client number 0 - COS0
683 	 * client, 2 - COS1, ... 5 - COS5)(HIGHEST) 4bits client num.
684 	 * TODO_ETS - Should be done by reset value or init tool
685 	 */
686 	if (port)
687 		/*  0x688 (|011|0 10|00 1|000) */
688 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , 0x688);
689 	else
690 		/*  (10 1|100 |011|0 10|00 1|000) */
691 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , 0x2C688);
692 
693 	/* TODO_ETS - Should be done by reset value or init tool */
694 	if (port)
695 		/* 0x688 (|011|0 10|00 1|000)*/
696 		REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P1, 0x688);
697 	else
698 	/* 0x2C688 (10 1|100 |011|0 10|00 1|000) */
699 	REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P0, 0x2C688);
700 
701 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P1 :
702 		   PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P0 , 0x100);
703 
704 
705 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
706 		   PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , 0);
707 
708 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
709 		   PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0 , 0);
710 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.
711 	 * In 4 port mode port1 has COS0-2 that can be used for WFQ.
712 	 */
713 	if (!port) {
714 		base_weight = PBF_REG_COS0_WEIGHT_P0;
715 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
716 	} else {
717 		base_weight = PBF_REG_COS0_WEIGHT_P1;
718 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
719 	}
720 
721 	for (i = 0; i < max_cos; i++)
722 		REG_WR(bp, base_weight + (0x4 * i), 0);
723 
724 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
725 }
726 /******************************************************************************
727 * Description:
728 *	E3B0 disable will return basicly the values to init values.
729 *.
730 ******************************************************************************/
bnx2x_ets_e3b0_disabled(const struct link_params * params,const struct link_vars * vars)731 static int bnx2x_ets_e3b0_disabled(const struct link_params *params,
732 				   const struct link_vars *vars)
733 {
734 	struct bnx2x *bp = params->bp;
735 
736 	if (!CHIP_IS_E3B0(bp)) {
737 		DP(NETIF_MSG_LINK,
738 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
739 		return -EINVAL;
740 	}
741 
742 	bnx2x_ets_e3b0_nig_disabled(params, vars);
743 
744 	bnx2x_ets_e3b0_pbf_disabled(params);
745 
746 	return 0;
747 }
748 
749 /******************************************************************************
750 * Description:
751 *	Disable will return basicly the values to init values.
752 *
753 ******************************************************************************/
bnx2x_ets_disabled(struct link_params * params,struct link_vars * vars)754 int bnx2x_ets_disabled(struct link_params *params,
755 		      struct link_vars *vars)
756 {
757 	struct bnx2x *bp = params->bp;
758 	int bnx2x_status = 0;
759 
760 	if ((CHIP_IS_E2(bp)) || (CHIP_IS_E3A0(bp)))
761 		bnx2x_ets_e2e3a0_disabled(params);
762 	else if (CHIP_IS_E3B0(bp))
763 		bnx2x_status = bnx2x_ets_e3b0_disabled(params, vars);
764 	else {
765 		DP(NETIF_MSG_LINK, "bnx2x_ets_disabled - chip not supported\n");
766 		return -EINVAL;
767 	}
768 
769 	return bnx2x_status;
770 }
771 
772 /******************************************************************************
773 * Description
774 *	Set the COS mappimg to SP and BW until this point all the COS are not
775 *	set as SP or BW.
776 ******************************************************************************/
bnx2x_ets_e3b0_cli_map(const struct link_params * params,const struct bnx2x_ets_params * ets_params,const u8 cos_sp_bitmap,const u8 cos_bw_bitmap)777 static int bnx2x_ets_e3b0_cli_map(const struct link_params *params,
778 				  const struct bnx2x_ets_params *ets_params,
779 				  const u8 cos_sp_bitmap,
780 				  const u8 cos_bw_bitmap)
781 {
782 	struct bnx2x *bp = params->bp;
783 	const u8 port = params->port;
784 	const u8 nig_cli_sp_bitmap = 0x7 | (cos_sp_bitmap << 3);
785 	const u8 pbf_cli_sp_bitmap = cos_sp_bitmap;
786 	const u8 nig_cli_subject2wfq_bitmap = cos_bw_bitmap << 3;
787 	const u8 pbf_cli_subject2wfq_bitmap = cos_bw_bitmap;
788 
789 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT :
790 	       NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, nig_cli_sp_bitmap);
791 
792 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
793 	       PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , pbf_cli_sp_bitmap);
794 
795 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
796 	       NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ,
797 	       nig_cli_subject2wfq_bitmap);
798 
799 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
800 	       PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0,
801 	       pbf_cli_subject2wfq_bitmap);
802 
803 	return 0;
804 }
805 
806 /******************************************************************************
807 * Description:
808 *	This function is needed because NIG ARB_CREDIT_WEIGHT_X are
809 *	not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
810 ******************************************************************************/
bnx2x_ets_e3b0_set_cos_bw(struct bnx2x * bp,const u8 cos_entry,const u32 min_w_val_nig,const u32 min_w_val_pbf,const u16 total_bw,const u8 bw,const u8 port)811 static int bnx2x_ets_e3b0_set_cos_bw(struct bnx2x *bp,
812 				     const u8 cos_entry,
813 				     const u32 min_w_val_nig,
814 				     const u32 min_w_val_pbf,
815 				     const u16 total_bw,
816 				     const u8 bw,
817 				     const u8 port)
818 {
819 	u32 nig_reg_adress_crd_weight = 0;
820 	u32 pbf_reg_adress_crd_weight = 0;
821 	/* Calculate and set BW for this COS - use 1 instead of 0 for BW */
822 	const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;
823 	const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;
824 
825 	switch (cos_entry) {
826 	case 0:
827 	    nig_reg_adress_crd_weight =
828 		 (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
829 		     NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0;
830 	     pbf_reg_adress_crd_weight = (port) ?
831 		 PBF_REG_COS0_WEIGHT_P1 : PBF_REG_COS0_WEIGHT_P0;
832 	     break;
833 	case 1:
834 	     nig_reg_adress_crd_weight = (port) ?
835 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
836 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1;
837 	     pbf_reg_adress_crd_weight = (port) ?
838 		 PBF_REG_COS1_WEIGHT_P1 : PBF_REG_COS1_WEIGHT_P0;
839 	     break;
840 	case 2:
841 	     nig_reg_adress_crd_weight = (port) ?
842 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
843 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2;
844 
845 		 pbf_reg_adress_crd_weight = (port) ?
846 		     PBF_REG_COS2_WEIGHT_P1 : PBF_REG_COS2_WEIGHT_P0;
847 	     break;
848 	case 3:
849 	    if (port)
850 			return -EINVAL;
851 	     nig_reg_adress_crd_weight =
852 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3;
853 	     pbf_reg_adress_crd_weight =
854 		 PBF_REG_COS3_WEIGHT_P0;
855 	     break;
856 	case 4:
857 	    if (port)
858 		return -EINVAL;
859 	     nig_reg_adress_crd_weight =
860 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4;
861 	     pbf_reg_adress_crd_weight = PBF_REG_COS4_WEIGHT_P0;
862 	     break;
863 	case 5:
864 	    if (port)
865 		return -EINVAL;
866 	     nig_reg_adress_crd_weight =
867 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5;
868 	     pbf_reg_adress_crd_weight = PBF_REG_COS5_WEIGHT_P0;
869 	     break;
870 	}
871 
872 	REG_WR(bp, nig_reg_adress_crd_weight, cos_bw_nig);
873 
874 	REG_WR(bp, pbf_reg_adress_crd_weight, cos_bw_pbf);
875 
876 	return 0;
877 }
878 /******************************************************************************
879 * Description:
880 *	Calculate the total BW.A value of 0 isn't legal.
881 *
882 ******************************************************************************/
bnx2x_ets_e3b0_get_total_bw(const struct link_params * params,struct bnx2x_ets_params * ets_params,u16 * total_bw)883 static int bnx2x_ets_e3b0_get_total_bw(
884 	const struct link_params *params,
885 	struct bnx2x_ets_params *ets_params,
886 	u16 *total_bw)
887 {
888 	struct bnx2x *bp = params->bp;
889 	u8 cos_idx = 0;
890 	u8 is_bw_cos_exist = 0;
891 
892 	*total_bw = 0 ;
893 	/* Calculate total BW requested */
894 	for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {
895 		if (ets_params->cos[cos_idx].state == bnx2x_cos_state_bw) {
896 			is_bw_cos_exist = 1;
897 			if (!ets_params->cos[cos_idx].params.bw_params.bw) {
898 				DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config BW"
899 						   "was set to 0\n");
900 				/* This is to prevent a state when ramrods
901 				 * can't be sent
902 				 */
903 				ets_params->cos[cos_idx].params.bw_params.bw
904 					 = 1;
905 			}
906 			*total_bw +=
907 				ets_params->cos[cos_idx].params.bw_params.bw;
908 		}
909 	}
910 
911 	/* Check total BW is valid */
912 	if ((is_bw_cos_exist == 1) && (*total_bw != 100)) {
913 		if (*total_bw == 0) {
914 			DP(NETIF_MSG_LINK,
915 			   "bnx2x_ets_E3B0_config total BW shouldn't be 0\n");
916 			return -EINVAL;
917 		}
918 		DP(NETIF_MSG_LINK,
919 		   "bnx2x_ets_E3B0_config total BW should be 100\n");
920 		/* We can handle a case whre the BW isn't 100 this can happen
921 		 * if the TC are joined.
922 		 */
923 	}
924 	return 0;
925 }
926 
927 /******************************************************************************
928 * Description:
929 *	Invalidate all the sp_pri_to_cos.
930 *
931 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 * sp_pri_to_cos)932 static void bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 *sp_pri_to_cos)
933 {
934 	u8 pri = 0;
935 	for (pri = 0; pri < DCBX_MAX_NUM_COS; pri++)
936 		sp_pri_to_cos[pri] = DCBX_INVALID_COS;
937 }
938 /******************************************************************************
939 * Description:
940 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
941 *	according to sp_pri_to_cos.
942 *
943 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params * params,u8 * sp_pri_to_cos,const u8 pri,const u8 cos_entry)944 static int bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params *params,
945 					    u8 *sp_pri_to_cos, const u8 pri,
946 					    const u8 cos_entry)
947 {
948 	struct bnx2x *bp = params->bp;
949 	const u8 port = params->port;
950 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
951 		DCBX_E3B0_MAX_NUM_COS_PORT0;
952 
953 	if (pri >= max_num_of_cos) {
954 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
955 		   "parameter Illegal strict priority\n");
956 	    return -EINVAL;
957 	}
958 
959 	if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) {
960 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
961 				   "parameter There can't be two COS's with "
962 				   "the same strict pri\n");
963 		return -EINVAL;
964 	}
965 
966 	sp_pri_to_cos[pri] = cos_entry;
967 	return 0;
968 
969 }
970 
971 /******************************************************************************
972 * Description:
973 *	Returns the correct value according to COS and priority in
974 *	the sp_pri_cli register.
975 *
976 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos,const u8 cos_offset,const u8 pri_set,const u8 pri_offset,const u8 entry_size)977 static u64 bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos, const u8 cos_offset,
978 					 const u8 pri_set,
979 					 const u8 pri_offset,
980 					 const u8 entry_size)
981 {
982 	u64 pri_cli_nig = 0;
983 	pri_cli_nig = ((u64)(cos + cos_offset)) << (entry_size *
984 						    (pri_set + pri_offset));
985 
986 	return pri_cli_nig;
987 }
988 /******************************************************************************
989 * Description:
990 *	Returns the correct value according to COS and priority in the
991 *	sp_pri_cli register for NIG.
992 *
993 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos,const u8 pri_set)994 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos, const u8 pri_set)
995 {
996 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
997 	const u8 nig_cos_offset = 3;
998 	const u8 nig_pri_offset = 3;
999 
1000 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, nig_cos_offset, pri_set,
1001 		nig_pri_offset, 4);
1002 
1003 }
1004 /******************************************************************************
1005 * Description:
1006 *	Returns the correct value according to COS and priority in the
1007 *	sp_pri_cli register for PBF.
1008 *
1009 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos,const u8 pri_set)1010 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos, const u8 pri_set)
1011 {
1012 	const u8 pbf_cos_offset = 0;
1013 	const u8 pbf_pri_offset = 0;
1014 
1015 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, pbf_cos_offset, pri_set,
1016 		pbf_pri_offset, 3);
1017 
1018 }
1019 
1020 /******************************************************************************
1021 * Description:
1022 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
1023 *	according to sp_pri_to_cos.(which COS has higher priority)
1024 *
1025 ******************************************************************************/
bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params * params,u8 * sp_pri_to_cos)1026 static int bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params *params,
1027 					     u8 *sp_pri_to_cos)
1028 {
1029 	struct bnx2x *bp = params->bp;
1030 	u8 i = 0;
1031 	const u8 port = params->port;
1032 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1033 	u64 pri_cli_nig = 0x210;
1034 	u32 pri_cli_pbf = 0x0;
1035 	u8 pri_set = 0;
1036 	u8 pri_bitmask = 0;
1037 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1038 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1039 
1040 	u8 cos_bit_to_set = (1 << max_num_of_cos) - 1;
1041 
1042 	/* Set all the strict priority first */
1043 	for (i = 0; i < max_num_of_cos; i++) {
1044 		if (sp_pri_to_cos[i] != DCBX_INVALID_COS) {
1045 			if (sp_pri_to_cos[i] >= DCBX_MAX_NUM_COS) {
1046 				DP(NETIF_MSG_LINK,
1047 					   "bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1048 					   "invalid cos entry\n");
1049 				return -EINVAL;
1050 			}
1051 
1052 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1053 			    sp_pri_to_cos[i], pri_set);
1054 
1055 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1056 			    sp_pri_to_cos[i], pri_set);
1057 			pri_bitmask = 1 << sp_pri_to_cos[i];
1058 			/* COS is used remove it from bitmap.*/
1059 			if (!(pri_bitmask & cos_bit_to_set)) {
1060 				DP(NETIF_MSG_LINK,
1061 					"bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1062 					"invalid There can't be two COS's with"
1063 					" the same strict pri\n");
1064 				return -EINVAL;
1065 			}
1066 			cos_bit_to_set &= ~pri_bitmask;
1067 			pri_set++;
1068 		}
1069 	}
1070 
1071 	/* Set all the Non strict priority i= COS*/
1072 	for (i = 0; i < max_num_of_cos; i++) {
1073 		pri_bitmask = 1 << i;
1074 		/* Check if COS was already used for SP */
1075 		if (pri_bitmask & cos_bit_to_set) {
1076 			/* COS wasn't used for SP */
1077 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1078 			    i, pri_set);
1079 
1080 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1081 			    i, pri_set);
1082 			/* COS is used remove it from bitmap.*/
1083 			cos_bit_to_set &= ~pri_bitmask;
1084 			pri_set++;
1085 		}
1086 	}
1087 
1088 	if (pri_set != max_num_of_cos) {
1089 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_set_pri_cli_reg not all "
1090 				   "entries were set\n");
1091 		return -EINVAL;
1092 	}
1093 
1094 	if (port) {
1095 		/* Only 6 usable clients*/
1096 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB,
1097 		       (u32)pri_cli_nig);
1098 
1099 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , pri_cli_pbf);
1100 	} else {
1101 		/* Only 9 usable clients*/
1102 		const u32 pri_cli_nig_lsb = (u32) (pri_cli_nig);
1103 		const u32 pri_cli_nig_msb = (u32) ((pri_cli_nig >> 32) & 0xF);
1104 
1105 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB,
1106 		       pri_cli_nig_lsb);
1107 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB,
1108 		       pri_cli_nig_msb);
1109 
1110 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , pri_cli_pbf);
1111 	}
1112 	return 0;
1113 }
1114 
1115 /******************************************************************************
1116 * Description:
1117 *	Configure the COS to ETS according to BW and SP settings.
1118 ******************************************************************************/
bnx2x_ets_e3b0_config(const struct link_params * params,const struct link_vars * vars,struct bnx2x_ets_params * ets_params)1119 int bnx2x_ets_e3b0_config(const struct link_params *params,
1120 			 const struct link_vars *vars,
1121 			 struct bnx2x_ets_params *ets_params)
1122 {
1123 	struct bnx2x *bp = params->bp;
1124 	int bnx2x_status = 0;
1125 	const u8 port = params->port;
1126 	u16 total_bw = 0;
1127 	const u32 min_w_val_nig = bnx2x_ets_get_min_w_val_nig(vars);
1128 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
1129 	u8 cos_bw_bitmap = 0;
1130 	u8 cos_sp_bitmap = 0;
1131 	u8 sp_pri_to_cos[DCBX_MAX_NUM_COS] = {0};
1132 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1133 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1134 	u8 cos_entry = 0;
1135 
1136 	if (!CHIP_IS_E3B0(bp)) {
1137 		DP(NETIF_MSG_LINK,
1138 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
1139 		return -EINVAL;
1140 	}
1141 
1142 	if ((ets_params->num_of_cos > max_num_of_cos)) {
1143 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config the number of COS "
1144 				   "isn't supported\n");
1145 		return -EINVAL;
1146 	}
1147 
1148 	/* Prepare sp strict priority parameters*/
1149 	bnx2x_ets_e3b0_sp_pri_to_cos_init(sp_pri_to_cos);
1150 
1151 	/* Prepare BW parameters*/
1152 	bnx2x_status = bnx2x_ets_e3b0_get_total_bw(params, ets_params,
1153 						   &total_bw);
1154 	if (bnx2x_status) {
1155 		DP(NETIF_MSG_LINK,
1156 		   "bnx2x_ets_E3B0_config get_total_bw failed\n");
1157 		return -EINVAL;
1158 	}
1159 
1160 	/* Upper bound is set according to current link speed (min_w_val
1161 	 * should be the same for upper bound and COS credit val).
1162 	 */
1163 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val_nig);
1164 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
1165 
1166 
1167 	for (cos_entry = 0; cos_entry < ets_params->num_of_cos; cos_entry++) {
1168 		if (bnx2x_cos_state_bw == ets_params->cos[cos_entry].state) {
1169 			cos_bw_bitmap |= (1 << cos_entry);
1170 			/* The function also sets the BW in HW(not the mappin
1171 			 * yet)
1172 			 */
1173 			bnx2x_status = bnx2x_ets_e3b0_set_cos_bw(
1174 				bp, cos_entry, min_w_val_nig, min_w_val_pbf,
1175 				total_bw,
1176 				ets_params->cos[cos_entry].params.bw_params.bw,
1177 				 port);
1178 		} else if (bnx2x_cos_state_strict ==
1179 			ets_params->cos[cos_entry].state){
1180 			cos_sp_bitmap |= (1 << cos_entry);
1181 
1182 			bnx2x_status = bnx2x_ets_e3b0_sp_pri_to_cos_set(
1183 				params,
1184 				sp_pri_to_cos,
1185 				ets_params->cos[cos_entry].params.sp_params.pri,
1186 				cos_entry);
1187 
1188 		} else {
1189 			DP(NETIF_MSG_LINK,
1190 			   "bnx2x_ets_e3b0_config cos state not valid\n");
1191 			return -EINVAL;
1192 		}
1193 		if (bnx2x_status) {
1194 			DP(NETIF_MSG_LINK,
1195 			   "bnx2x_ets_e3b0_config set cos bw failed\n");
1196 			return bnx2x_status;
1197 		}
1198 	}
1199 
1200 	/* Set SP register (which COS has higher priority) */
1201 	bnx2x_status = bnx2x_ets_e3b0_sp_set_pri_cli_reg(params,
1202 							 sp_pri_to_cos);
1203 
1204 	if (bnx2x_status) {
1205 		DP(NETIF_MSG_LINK,
1206 		   "bnx2x_ets_E3B0_config set_pri_cli_reg failed\n");
1207 		return bnx2x_status;
1208 	}
1209 
1210 	/* Set client mapping of BW and strict */
1211 	bnx2x_status = bnx2x_ets_e3b0_cli_map(params, ets_params,
1212 					      cos_sp_bitmap,
1213 					      cos_bw_bitmap);
1214 
1215 	if (bnx2x_status) {
1216 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config SP failed\n");
1217 		return bnx2x_status;
1218 	}
1219 	return 0;
1220 }
bnx2x_ets_bw_limit_common(const struct link_params * params)1221 static void bnx2x_ets_bw_limit_common(const struct link_params *params)
1222 {
1223 	/* ETS disabled configuration */
1224 	struct bnx2x *bp = params->bp;
1225 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1226 	/* Defines which entries (clients) are subjected to WFQ arbitration
1227 	 * COS0 0x8
1228 	 * COS1 0x10
1229 	 */
1230 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0x18);
1231 	/* Mapping between the ARB_CREDIT_WEIGHT registers and actual
1232 	 * client numbers (WEIGHT_0 does not actually have to represent
1233 	 * client 0)
1234 	 *    PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1235 	 *  cos1-001     cos0-000     dbg1-100     dbg0-011     MCP-010
1236 	 */
1237 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0x111A);
1238 
1239 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0,
1240 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1241 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1,
1242 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1243 
1244 	/* ETS mode enabled*/
1245 	REG_WR(bp, PBF_REG_ETS_ENABLED, 1);
1246 
1247 	/* Defines the number of consecutive slots for the strict priority */
1248 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
1249 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1250 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 - COS0
1251 	 * entry, 4 - COS1 entry.
1252 	 * COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1253 	 * bit4   bit3	  bit2     bit1	   bit0
1254 	 * MCP and debug are strict
1255 	 */
1256 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
1257 
1258 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter.*/
1259 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND,
1260 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1261 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND,
1262 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1263 }
1264 
bnx2x_ets_bw_limit(const struct link_params * params,const u32 cos0_bw,const u32 cos1_bw)1265 void bnx2x_ets_bw_limit(const struct link_params *params, const u32 cos0_bw,
1266 			const u32 cos1_bw)
1267 {
1268 	/* ETS disabled configuration*/
1269 	struct bnx2x *bp = params->bp;
1270 	const u32 total_bw = cos0_bw + cos1_bw;
1271 	u32 cos0_credit_weight = 0;
1272 	u32 cos1_credit_weight = 0;
1273 
1274 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1275 
1276 	if ((!total_bw) ||
1277 	    (!cos0_bw) ||
1278 	    (!cos1_bw)) {
1279 		DP(NETIF_MSG_LINK, "Total BW can't be zero\n");
1280 		return;
1281 	}
1282 
1283 	cos0_credit_weight = (cos0_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1284 		total_bw;
1285 	cos1_credit_weight = (cos1_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1286 		total_bw;
1287 
1288 	bnx2x_ets_bw_limit_common(params);
1289 
1290 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, cos0_credit_weight);
1291 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, cos1_credit_weight);
1292 
1293 	REG_WR(bp, PBF_REG_COS0_WEIGHT, cos0_credit_weight);
1294 	REG_WR(bp, PBF_REG_COS1_WEIGHT, cos1_credit_weight);
1295 }
1296 
bnx2x_ets_strict(const struct link_params * params,const u8 strict_cos)1297 int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos)
1298 {
1299 	/* ETS disabled configuration*/
1300 	struct bnx2x *bp = params->bp;
1301 	u32 val	= 0;
1302 
1303 	DP(NETIF_MSG_LINK, "ETS enabled strict configuration\n");
1304 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1305 	 * as strict.  Bits 0,1,2 - debug and management entries,
1306 	 * 3 - COS0 entry, 4 - COS1 entry.
1307 	 *  COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1308 	 *  bit4   bit3	  bit2      bit1     bit0
1309 	 * MCP and debug are strict
1310 	 */
1311 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1F);
1312 	/* For strict priority entries defines the number of consecutive slots
1313 	 * for the highest priority.
1314 	 */
1315 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
1316 	/* ETS mode disable */
1317 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
1318 	/* Defines the number of consecutive slots for the strict priority */
1319 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0x100);
1320 
1321 	/* Defines the number of consecutive slots for the strict priority */
1322 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, strict_cos);
1323 
1324 	/* Mapping between entry  priority to client number (0,1,2 -debug and
1325 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
1326 	 * 3bits client num.
1327 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1328 	 * dbg0-010     dbg1-001     cos1-100     cos0-011     MCP-000
1329 	 * dbg0-010     dbg1-001     cos0-011     cos1-100     MCP-000
1330 	 */
1331 	val = (!strict_cos) ? 0x2318 : 0x22E0;
1332 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, val);
1333 
1334 	return 0;
1335 }
1336 
1337 /******************************************************************/
1338 /*			PFC section				  */
1339 /******************************************************************/
bnx2x_update_pfc_xmac(struct link_params * params,struct link_vars * vars,u8 is_lb)1340 static void bnx2x_update_pfc_xmac(struct link_params *params,
1341 				  struct link_vars *vars,
1342 				  u8 is_lb)
1343 {
1344 	struct bnx2x *bp = params->bp;
1345 	u32 xmac_base;
1346 	u32 pause_val, pfc0_val, pfc1_val;
1347 
1348 	/* XMAC base adrr */
1349 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1350 
1351 	/* Initialize pause and pfc registers */
1352 	pause_val = 0x18000;
1353 	pfc0_val = 0xFFFF8000;
1354 	pfc1_val = 0x2;
1355 
1356 	/* No PFC support */
1357 	if (!(params->feature_config_flags &
1358 	      FEATURE_CONFIG_PFC_ENABLED)) {
1359 
1360 		/* RX flow control - Process pause frame in receive direction
1361 		 */
1362 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1363 			pause_val |= XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN;
1364 
1365 		/* TX flow control - Send pause packet when buffer is full */
1366 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1367 			pause_val |= XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN;
1368 	} else {/* PFC support */
1369 		pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN |
1370 			XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN |
1371 			XMAC_PFC_CTRL_HI_REG_RX_PFC_EN |
1372 			XMAC_PFC_CTRL_HI_REG_TX_PFC_EN |
1373 			XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1374 		/* Write pause and PFC registers */
1375 		REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1376 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1377 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1378 		pfc1_val &= ~XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1379 
1380 	}
1381 
1382 	/* Write pause and PFC registers */
1383 	REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1384 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1385 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1386 
1387 
1388 	/* Set MAC address for source TX Pause/PFC frames */
1389 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_LO,
1390 	       ((params->mac_addr[2] << 24) |
1391 		(params->mac_addr[3] << 16) |
1392 		(params->mac_addr[4] << 8) |
1393 		(params->mac_addr[5])));
1394 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_HI,
1395 	       ((params->mac_addr[0] << 8) |
1396 		(params->mac_addr[1])));
1397 
1398 	udelay(30);
1399 }
1400 
1401 
bnx2x_emac_get_pfc_stat(struct link_params * params,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1402 static void bnx2x_emac_get_pfc_stat(struct link_params *params,
1403 				    u32 pfc_frames_sent[2],
1404 				    u32 pfc_frames_received[2])
1405 {
1406 	/* Read pfc statistic */
1407 	struct bnx2x *bp = params->bp;
1408 	u32 emac_base = params->port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1409 	u32 val_xon = 0;
1410 	u32 val_xoff = 0;
1411 
1412 	DP(NETIF_MSG_LINK, "pfc statistic read from EMAC\n");
1413 
1414 	/* PFC received frames */
1415 	val_xoff = REG_RD(bp, emac_base +
1416 				EMAC_REG_RX_PFC_STATS_XOFF_RCVD);
1417 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_RCVD_COUNT;
1418 	val_xon = REG_RD(bp, emac_base + EMAC_REG_RX_PFC_STATS_XON_RCVD);
1419 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_RCVD_COUNT;
1420 
1421 	pfc_frames_received[0] = val_xon + val_xoff;
1422 
1423 	/* PFC received sent */
1424 	val_xoff = REG_RD(bp, emac_base +
1425 				EMAC_REG_RX_PFC_STATS_XOFF_SENT);
1426 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_SENT_COUNT;
1427 	val_xon = REG_RD(bp, emac_base + EMAC_REG_RX_PFC_STATS_XON_SENT);
1428 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_SENT_COUNT;
1429 
1430 	pfc_frames_sent[0] = val_xon + val_xoff;
1431 }
1432 
1433 /* Read pfc statistic*/
bnx2x_pfc_statistic(struct link_params * params,struct link_vars * vars,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1434 void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars,
1435 			 u32 pfc_frames_sent[2],
1436 			 u32 pfc_frames_received[2])
1437 {
1438 	/* Read pfc statistic */
1439 	struct bnx2x *bp = params->bp;
1440 
1441 	DP(NETIF_MSG_LINK, "pfc statistic\n");
1442 
1443 	if (!vars->link_up)
1444 		return;
1445 
1446 	if (vars->mac_type == MAC_TYPE_EMAC) {
1447 		DP(NETIF_MSG_LINK, "About to read PFC stats from EMAC\n");
1448 		bnx2x_emac_get_pfc_stat(params, pfc_frames_sent,
1449 					pfc_frames_received);
1450 	}
1451 }
1452 /******************************************************************/
1453 /*			MAC/PBF section				  */
1454 /******************************************************************/
bnx2x_set_mdio_clk(struct bnx2x * bp,u32 chip_id,u32 emac_base)1455 static void bnx2x_set_mdio_clk(struct bnx2x *bp, u32 chip_id,
1456 			       u32 emac_base)
1457 {
1458 	u32 new_mode, cur_mode;
1459 	u32 clc_cnt;
1460 	/* Set clause 45 mode, slow down the MDIO clock to 2.5MHz
1461 	 * (a value of 49==0x31) and make sure that the AUTO poll is off
1462 	 */
1463 	cur_mode = REG_RD(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE);
1464 
1465 	if (USES_WARPCORE(bp))
1466 		clc_cnt = 74L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1467 	else
1468 		clc_cnt = 49L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1469 
1470 	if (((cur_mode & EMAC_MDIO_MODE_CLOCK_CNT) == clc_cnt) &&
1471 	    (cur_mode & (EMAC_MDIO_MODE_CLAUSE_45)))
1472 		return;
1473 
1474 	new_mode = cur_mode &
1475 		~(EMAC_MDIO_MODE_AUTO_POLL | EMAC_MDIO_MODE_CLOCK_CNT);
1476 	new_mode |= clc_cnt;
1477 	new_mode |= (EMAC_MDIO_MODE_CLAUSE_45);
1478 
1479 	DP(NETIF_MSG_LINK, "Changing emac_mode from 0x%x to 0x%x\n",
1480 	   cur_mode, new_mode);
1481 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE, new_mode);
1482 	udelay(40);
1483 }
1484 
bnx2x_set_mdio_emac_per_phy(struct bnx2x * bp,struct link_params * params)1485 static void bnx2x_set_mdio_emac_per_phy(struct bnx2x *bp,
1486 					struct link_params *params)
1487 {
1488 	u8 phy_index;
1489 	/* Set mdio clock per phy */
1490 	for (phy_index = INT_PHY; phy_index < params->num_phys;
1491 	      phy_index++)
1492 		bnx2x_set_mdio_clk(bp, params->chip_id,
1493 				   params->phy[phy_index].mdio_ctrl);
1494 }
1495 
bnx2x_is_4_port_mode(struct bnx2x * bp)1496 static u8 bnx2x_is_4_port_mode(struct bnx2x *bp)
1497 {
1498 	u32 port4mode_ovwr_val;
1499 	/* Check 4-port override enabled */
1500 	port4mode_ovwr_val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
1501 	if (port4mode_ovwr_val & (1<<0)) {
1502 		/* Return 4-port mode override value */
1503 		return ((port4mode_ovwr_val & (1<<1)) == (1<<1));
1504 	}
1505 	/* Return 4-port mode from input pin */
1506 	return (u8)REG_RD(bp, MISC_REG_PORT4MODE_EN);
1507 }
1508 
bnx2x_emac_init(struct link_params * params,struct link_vars * vars)1509 static void bnx2x_emac_init(struct link_params *params,
1510 			    struct link_vars *vars)
1511 {
1512 	/* reset and unreset the emac core */
1513 	struct bnx2x *bp = params->bp;
1514 	u8 port = params->port;
1515 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1516 	u32 val;
1517 	u16 timeout;
1518 
1519 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1520 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1521 	udelay(5);
1522 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1523 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1524 
1525 	/* init emac - use read-modify-write */
1526 	/* self clear reset */
1527 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1528 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_RESET));
1529 
1530 	timeout = 200;
1531 	do {
1532 		val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1533 		DP(NETIF_MSG_LINK, "EMAC reset reg is %u\n", val);
1534 		if (!timeout) {
1535 			DP(NETIF_MSG_LINK, "EMAC timeout!\n");
1536 			return;
1537 		}
1538 		timeout--;
1539 	} while (val & EMAC_MODE_RESET);
1540 
1541 	bnx2x_set_mdio_emac_per_phy(bp, params);
1542 	/* Set mac address */
1543 	val = ((params->mac_addr[0] << 8) |
1544 		params->mac_addr[1]);
1545 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH, val);
1546 
1547 	val = ((params->mac_addr[2] << 24) |
1548 	       (params->mac_addr[3] << 16) |
1549 	       (params->mac_addr[4] << 8) |
1550 		params->mac_addr[5]);
1551 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + 4, val);
1552 }
1553 
bnx2x_set_xumac_nig(struct link_params * params,u16 tx_pause_en,u8 enable)1554 static void bnx2x_set_xumac_nig(struct link_params *params,
1555 				u16 tx_pause_en,
1556 				u8 enable)
1557 {
1558 	struct bnx2x *bp = params->bp;
1559 
1560 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_IN_EN : NIG_REG_P0_MAC_IN_EN,
1561 	       enable);
1562 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_OUT_EN : NIG_REG_P0_MAC_OUT_EN,
1563 	       enable);
1564 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_PAUSE_OUT_EN :
1565 	       NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
1566 }
1567 
bnx2x_set_umac_rxtx(struct link_params * params,u8 en)1568 static void bnx2x_set_umac_rxtx(struct link_params *params, u8 en)
1569 {
1570 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1571 	u32 val;
1572 	struct bnx2x *bp = params->bp;
1573 	if (!(REG_RD(bp, MISC_REG_RESET_REG_2) &
1574 		   (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
1575 		return;
1576 	val = REG_RD(bp, umac_base + UMAC_REG_COMMAND_CONFIG);
1577 	if (en)
1578 		val |= (UMAC_COMMAND_CONFIG_REG_TX_ENA |
1579 			UMAC_COMMAND_CONFIG_REG_RX_ENA);
1580 	else
1581 		val &= ~(UMAC_COMMAND_CONFIG_REG_TX_ENA |
1582 			 UMAC_COMMAND_CONFIG_REG_RX_ENA);
1583 	/* Disable RX and TX */
1584 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1585 }
1586 
bnx2x_umac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1587 static void bnx2x_umac_enable(struct link_params *params,
1588 			    struct link_vars *vars, u8 lb)
1589 {
1590 	u32 val;
1591 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1592 	struct bnx2x *bp = params->bp;
1593 	/* Reset UMAC */
1594 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1595 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1596 	usleep_range(1000, 2000);
1597 
1598 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1599 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1600 
1601 	DP(NETIF_MSG_LINK, "enabling UMAC\n");
1602 
1603 	/* This register opens the gate for the UMAC despite its name */
1604 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
1605 
1606 	val = UMAC_COMMAND_CONFIG_REG_PROMIS_EN |
1607 		UMAC_COMMAND_CONFIG_REG_PAD_EN |
1608 		UMAC_COMMAND_CONFIG_REG_SW_RESET |
1609 		UMAC_COMMAND_CONFIG_REG_NO_LGTH_CHECK;
1610 	switch (vars->line_speed) {
1611 	case SPEED_10:
1612 		val |= (0<<2);
1613 		break;
1614 	case SPEED_100:
1615 		val |= (1<<2);
1616 		break;
1617 	case SPEED_1000:
1618 		val |= (2<<2);
1619 		break;
1620 	case SPEED_2500:
1621 		val |= (3<<2);
1622 		break;
1623 	default:
1624 		DP(NETIF_MSG_LINK, "Invalid speed for UMAC %d\n",
1625 			       vars->line_speed);
1626 		break;
1627 	}
1628 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1629 		val |= UMAC_COMMAND_CONFIG_REG_IGNORE_TX_PAUSE;
1630 
1631 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1632 		val |= UMAC_COMMAND_CONFIG_REG_PAUSE_IGNORE;
1633 
1634 	if (vars->duplex == DUPLEX_HALF)
1635 		val |= UMAC_COMMAND_CONFIG_REG_HD_ENA;
1636 
1637 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1638 	udelay(50);
1639 
1640 	/* Configure UMAC for EEE */
1641 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1642 		DP(NETIF_MSG_LINK, "configured UMAC for EEE\n");
1643 		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL,
1644 		       UMAC_UMAC_EEE_CTRL_REG_EEE_EN);
1645 		REG_WR(bp, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11);
1646 	} else {
1647 		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0);
1648 	}
1649 
1650 	/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
1651 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0,
1652 	       ((params->mac_addr[2] << 24) |
1653 		(params->mac_addr[3] << 16) |
1654 		(params->mac_addr[4] << 8) |
1655 		(params->mac_addr[5])));
1656 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR1,
1657 	       ((params->mac_addr[0] << 8) |
1658 		(params->mac_addr[1])));
1659 
1660 	/* Enable RX and TX */
1661 	val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN;
1662 	val |= UMAC_COMMAND_CONFIG_REG_TX_ENA |
1663 		UMAC_COMMAND_CONFIG_REG_RX_ENA;
1664 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1665 	udelay(50);
1666 
1667 	/* Remove SW Reset */
1668 	val &= ~UMAC_COMMAND_CONFIG_REG_SW_RESET;
1669 
1670 	/* Check loopback mode */
1671 	if (lb)
1672 		val |= UMAC_COMMAND_CONFIG_REG_LOOP_ENA;
1673 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1674 
1675 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
1676 	 * length used by the MAC receive logic to check frames.
1677 	 */
1678 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
1679 	bnx2x_set_xumac_nig(params,
1680 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1681 	vars->mac_type = MAC_TYPE_UMAC;
1682 
1683 }
1684 
1685 /* Define the XMAC mode */
bnx2x_xmac_init(struct link_params * params,u32 max_speed)1686 static void bnx2x_xmac_init(struct link_params *params, u32 max_speed)
1687 {
1688 	struct bnx2x *bp = params->bp;
1689 	u32 is_port4mode = bnx2x_is_4_port_mode(bp);
1690 
1691 	/* In 4-port mode, need to set the mode only once, so if XMAC is
1692 	 * already out of reset, it means the mode has already been set,
1693 	 * and it must not* reset the XMAC again, since it controls both
1694 	 * ports of the path
1695 	 */
1696 
1697 	if (((CHIP_NUM(bp) == CHIP_NUM_57840_4_10) ||
1698 	     (CHIP_NUM(bp) == CHIP_NUM_57840_2_20) ||
1699 	     (CHIP_NUM(bp) == CHIP_NUM_57840_OBSOLETE)) &&
1700 	    is_port4mode &&
1701 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
1702 	     MISC_REGISTERS_RESET_REG_2_XMAC)) {
1703 		DP(NETIF_MSG_LINK,
1704 		   "XMAC already out of reset in 4-port mode\n");
1705 		return;
1706 	}
1707 
1708 	/* Hard reset */
1709 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1710 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1711 	usleep_range(1000, 2000);
1712 
1713 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1714 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1715 	if (is_port4mode) {
1716 		DP(NETIF_MSG_LINK, "Init XMAC to 2 ports x 10G per path\n");
1717 
1718 		/* Set the number of ports on the system side to up to 2 */
1719 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 1);
1720 
1721 		/* Set the number of ports on the Warp Core to 10G */
1722 		REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1723 	} else {
1724 		/* Set the number of ports on the system side to 1 */
1725 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 0);
1726 		if (max_speed == SPEED_10000) {
1727 			DP(NETIF_MSG_LINK,
1728 			   "Init XMAC to 10G x 1 port per path\n");
1729 			/* Set the number of ports on the Warp Core to 10G */
1730 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1731 		} else {
1732 			DP(NETIF_MSG_LINK,
1733 			   "Init XMAC to 20G x 2 ports per path\n");
1734 			/* Set the number of ports on the Warp Core to 20G */
1735 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 1);
1736 		}
1737 	}
1738 	/* Soft reset */
1739 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1740 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1741 	usleep_range(1000, 2000);
1742 
1743 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1744 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1745 
1746 }
1747 
bnx2x_set_xmac_rxtx(struct link_params * params,u8 en)1748 static void bnx2x_set_xmac_rxtx(struct link_params *params, u8 en)
1749 {
1750 	u8 port = params->port;
1751 	struct bnx2x *bp = params->bp;
1752 	u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1753 	u32 val;
1754 
1755 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
1756 	    MISC_REGISTERS_RESET_REG_2_XMAC) {
1757 		/* Send an indication to change the state in the NIG back to XON
1758 		 * Clearing this bit enables the next set of this bit to get
1759 		 * rising edge
1760 		 */
1761 		pfc_ctrl = REG_RD(bp, xmac_base + XMAC_REG_PFC_CTRL_HI);
1762 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1763 		       (pfc_ctrl & ~(1<<1)));
1764 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1765 		       (pfc_ctrl | (1<<1)));
1766 		DP(NETIF_MSG_LINK, "Disable XMAC on port %x\n", port);
1767 		val = REG_RD(bp, xmac_base + XMAC_REG_CTRL);
1768 		if (en)
1769 			val |= (XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1770 		else
1771 			val &= ~(XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1772 		REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
1773 	}
1774 }
1775 
bnx2x_xmac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1776 static int bnx2x_xmac_enable(struct link_params *params,
1777 			     struct link_vars *vars, u8 lb)
1778 {
1779 	u32 val, xmac_base;
1780 	struct bnx2x *bp = params->bp;
1781 	DP(NETIF_MSG_LINK, "enabling XMAC\n");
1782 
1783 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1784 
1785 	bnx2x_xmac_init(params, vars->line_speed);
1786 
1787 	/* This register determines on which events the MAC will assert
1788 	 * error on the i/f to the NIG along w/ EOP.
1789 	 */
1790 
1791 	/* This register tells the NIG whether to send traffic to UMAC
1792 	 * or XMAC
1793 	 */
1794 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
1795 
1796 	/* When XMAC is in XLGMII mode, disable sending idles for fault
1797 	 * detection.
1798 	 */
1799 	if (!(params->phy[INT_PHY].flags & FLAGS_TX_ERROR_CHECK)) {
1800 		REG_WR(bp, xmac_base + XMAC_REG_RX_LSS_CTRL,
1801 		       (XMAC_RX_LSS_CTRL_REG_LOCAL_FAULT_DISABLE |
1802 			XMAC_RX_LSS_CTRL_REG_REMOTE_FAULT_DISABLE));
1803 		REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
1804 		REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
1805 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
1806 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
1807 	}
1808 	/* Set Max packet size */
1809 	REG_WR(bp, xmac_base + XMAC_REG_RX_MAX_SIZE, 0x2710);
1810 
1811 	/* CRC append for Tx packets */
1812 	REG_WR(bp, xmac_base + XMAC_REG_TX_CTRL, 0xC800);
1813 
1814 	/* update PFC */
1815 	bnx2x_update_pfc_xmac(params, vars, 0);
1816 
1817 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1818 		DP(NETIF_MSG_LINK, "Setting XMAC for EEE\n");
1819 		REG_WR(bp, xmac_base + XMAC_REG_EEE_TIMERS_HI, 0x1380008);
1820 		REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x1);
1821 	} else {
1822 		REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x0);
1823 	}
1824 
1825 	/* Enable TX and RX */
1826 	val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
1827 
1828 	/* Set MAC in XLGMII mode for dual-mode */
1829 	if ((vars->line_speed == SPEED_20000) &&
1830 	    (params->phy[INT_PHY].supported &
1831 	     SUPPORTED_20000baseKR2_Full))
1832 		val |= XMAC_CTRL_REG_XLGMII_ALIGN_ENB;
1833 
1834 	/* Check loopback mode */
1835 	if (lb)
1836 		val |= XMAC_CTRL_REG_LINE_LOCAL_LPBK;
1837 	REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
1838 	bnx2x_set_xumac_nig(params,
1839 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1840 
1841 	vars->mac_type = MAC_TYPE_XMAC;
1842 
1843 	return 0;
1844 }
1845 
bnx2x_emac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1846 static int bnx2x_emac_enable(struct link_params *params,
1847 			     struct link_vars *vars, u8 lb)
1848 {
1849 	struct bnx2x *bp = params->bp;
1850 	u8 port = params->port;
1851 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1852 	u32 val;
1853 
1854 	DP(NETIF_MSG_LINK, "enabling EMAC\n");
1855 
1856 	/* Disable BMAC */
1857 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1858 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
1859 
1860 	/* enable emac and not bmac */
1861 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
1862 
1863 	/* ASIC */
1864 	if (vars->phy_flags & PHY_XGXS_FLAG) {
1865 		u32 ser_lane = ((params->lane_config &
1866 				 PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
1867 				PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
1868 
1869 		DP(NETIF_MSG_LINK, "XGXS\n");
1870 		/* select the master lanes (out of 0-3) */
1871 		REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
1872 		/* select XGXS */
1873 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
1874 
1875 	} else { /* SerDes */
1876 		DP(NETIF_MSG_LINK, "SerDes\n");
1877 		/* select SerDes */
1878 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
1879 	}
1880 
1881 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1882 		      EMAC_RX_MODE_RESET);
1883 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1884 		      EMAC_TX_MODE_RESET);
1885 
1886 		/* pause enable/disable */
1887 		bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1888 			       EMAC_RX_MODE_FLOW_EN);
1889 
1890 		bnx2x_bits_dis(bp,  emac_base + EMAC_REG_EMAC_TX_MODE,
1891 			       (EMAC_TX_MODE_EXT_PAUSE_EN |
1892 				EMAC_TX_MODE_FLOW_EN));
1893 		if (!(params->feature_config_flags &
1894 		      FEATURE_CONFIG_PFC_ENABLED)) {
1895 			if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1896 				bnx2x_bits_en(bp, emac_base +
1897 					      EMAC_REG_EMAC_RX_MODE,
1898 					      EMAC_RX_MODE_FLOW_EN);
1899 
1900 			if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1901 				bnx2x_bits_en(bp, emac_base +
1902 					      EMAC_REG_EMAC_TX_MODE,
1903 					      (EMAC_TX_MODE_EXT_PAUSE_EN |
1904 					       EMAC_TX_MODE_FLOW_EN));
1905 		} else
1906 			bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1907 				      EMAC_TX_MODE_FLOW_EN);
1908 
1909 	/* KEEP_VLAN_TAG, promiscuous */
1910 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_RX_MODE);
1911 	val |= EMAC_RX_MODE_KEEP_VLAN_TAG | EMAC_RX_MODE_PROMISCUOUS;
1912 
1913 	/* Setting this bit causes MAC control frames (except for pause
1914 	 * frames) to be passed on for processing. This setting has no
1915 	 * affect on the operation of the pause frames. This bit effects
1916 	 * all packets regardless of RX Parser packet sorting logic.
1917 	 * Turn the PFC off to make sure we are in Xon state before
1918 	 * enabling it.
1919 	 */
1920 	EMAC_WR(bp, EMAC_REG_RX_PFC_MODE, 0);
1921 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
1922 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
1923 		/* Enable PFC again */
1924 		EMAC_WR(bp, EMAC_REG_RX_PFC_MODE,
1925 			EMAC_REG_RX_PFC_MODE_RX_EN |
1926 			EMAC_REG_RX_PFC_MODE_TX_EN |
1927 			EMAC_REG_RX_PFC_MODE_PRIORITIES);
1928 
1929 		EMAC_WR(bp, EMAC_REG_RX_PFC_PARAM,
1930 			((0x0101 <<
1931 			  EMAC_REG_RX_PFC_PARAM_OPCODE_BITSHIFT) |
1932 			 (0x00ff <<
1933 			  EMAC_REG_RX_PFC_PARAM_PRIORITY_EN_BITSHIFT)));
1934 		val |= EMAC_RX_MODE_KEEP_MAC_CONTROL;
1935 	}
1936 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MODE, val);
1937 
1938 	/* Set Loopback */
1939 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1940 	if (lb)
1941 		val |= 0x810;
1942 	else
1943 		val &= ~0x810;
1944 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, val);
1945 
1946 	/* Enable emac */
1947 	REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 1);
1948 
1949 	/* Enable emac for jumbo packets */
1950 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MTU_SIZE,
1951 		(EMAC_RX_MTU_SIZE_JUMBO_ENA |
1952 		 (ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD)));
1953 
1954 	/* Strip CRC */
1955 	REG_WR(bp, NIG_REG_NIG_INGRESS_EMAC0_NO_CRC + port*4, 0x1);
1956 
1957 	/* Disable the NIG in/out to the bmac */
1958 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x0);
1959 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, 0x0);
1960 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x0);
1961 
1962 	/* Enable the NIG in/out to the emac */
1963 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x1);
1964 	val = 0;
1965 	if ((params->feature_config_flags &
1966 	      FEATURE_CONFIG_PFC_ENABLED) ||
1967 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1968 		val = 1;
1969 
1970 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, val);
1971 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x1);
1972 
1973 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x0);
1974 
1975 	vars->mac_type = MAC_TYPE_EMAC;
1976 	return 0;
1977 }
1978 
bnx2x_update_pfc_bmac1(struct link_params * params,struct link_vars * vars)1979 static void bnx2x_update_pfc_bmac1(struct link_params *params,
1980 				   struct link_vars *vars)
1981 {
1982 	u32 wb_data[2];
1983 	struct bnx2x *bp = params->bp;
1984 	u32 bmac_addr =  params->port ? NIG_REG_INGRESS_BMAC1_MEM :
1985 		NIG_REG_INGRESS_BMAC0_MEM;
1986 
1987 	u32 val = 0x14;
1988 	if ((!(params->feature_config_flags &
1989 	      FEATURE_CONFIG_PFC_ENABLED)) &&
1990 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1991 		/* Enable BigMAC to react on received Pause packets */
1992 		val |= (1<<5);
1993 	wb_data[0] = val;
1994 	wb_data[1] = 0;
1995 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_CONTROL, wb_data, 2);
1996 
1997 	/* TX control */
1998 	val = 0xc0;
1999 	if (!(params->feature_config_flags &
2000 	      FEATURE_CONFIG_PFC_ENABLED) &&
2001 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2002 		val |= 0x800000;
2003 	wb_data[0] = val;
2004 	wb_data[1] = 0;
2005 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_CONTROL, wb_data, 2);
2006 }
2007 
bnx2x_update_pfc_bmac2(struct link_params * params,struct link_vars * vars,u8 is_lb)2008 static void bnx2x_update_pfc_bmac2(struct link_params *params,
2009 				   struct link_vars *vars,
2010 				   u8 is_lb)
2011 {
2012 	/* Set rx control: Strip CRC and enable BigMAC to relay
2013 	 * control packets to the system as well
2014 	 */
2015 	u32 wb_data[2];
2016 	struct bnx2x *bp = params->bp;
2017 	u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
2018 		NIG_REG_INGRESS_BMAC0_MEM;
2019 	u32 val = 0x14;
2020 
2021 	if ((!(params->feature_config_flags &
2022 	      FEATURE_CONFIG_PFC_ENABLED)) &&
2023 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
2024 		/* Enable BigMAC to react on received Pause packets */
2025 		val |= (1<<5);
2026 	wb_data[0] = val;
2027 	wb_data[1] = 0;
2028 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_CONTROL, wb_data, 2);
2029 	udelay(30);
2030 
2031 	/* Tx control */
2032 	val = 0xc0;
2033 	if (!(params->feature_config_flags &
2034 				FEATURE_CONFIG_PFC_ENABLED) &&
2035 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2036 		val |= 0x800000;
2037 	wb_data[0] = val;
2038 	wb_data[1] = 0;
2039 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_CONTROL, wb_data, 2);
2040 
2041 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
2042 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
2043 		/* Enable PFC RX & TX & STATS and set 8 COS  */
2044 		wb_data[0] = 0x0;
2045 		wb_data[0] |= (1<<0);  /* RX */
2046 		wb_data[0] |= (1<<1);  /* TX */
2047 		wb_data[0] |= (1<<2);  /* Force initial Xon */
2048 		wb_data[0] |= (1<<3);  /* 8 cos */
2049 		wb_data[0] |= (1<<5);  /* STATS */
2050 		wb_data[1] = 0;
2051 		REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL,
2052 			    wb_data, 2);
2053 		/* Clear the force Xon */
2054 		wb_data[0] &= ~(1<<2);
2055 	} else {
2056 		DP(NETIF_MSG_LINK, "PFC is disabled\n");
2057 		/* Disable PFC RX & TX & STATS and set 8 COS */
2058 		wb_data[0] = 0x8;
2059 		wb_data[1] = 0;
2060 	}
2061 
2062 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL, wb_data, 2);
2063 
2064 	/* Set Time (based unit is 512 bit time) between automatic
2065 	 * re-sending of PP packets amd enable automatic re-send of
2066 	 * Per-Priroity Packet as long as pp_gen is asserted and
2067 	 * pp_disable is low.
2068 	 */
2069 	val = 0x8000;
2070 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2071 		val |= (1<<16); /* enable automatic re-send */
2072 
2073 	wb_data[0] = val;
2074 	wb_data[1] = 0;
2075 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_PAUSE_CONTROL,
2076 		    wb_data, 2);
2077 
2078 	/* mac control */
2079 	val = 0x3; /* Enable RX and TX */
2080 	if (is_lb) {
2081 		val |= 0x4; /* Local loopback */
2082 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2083 	}
2084 	/* When PFC enabled, Pass pause frames towards the NIG. */
2085 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2086 		val |= ((1<<6)|(1<<5));
2087 
2088 	wb_data[0] = val;
2089 	wb_data[1] = 0;
2090 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2091 }
2092 
2093 /******************************************************************************
2094 * Description:
2095 *  This function is needed because NIG ARB_CREDIT_WEIGHT_X are
2096 *  not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
2097 ******************************************************************************/
bnx2x_pfc_nig_rx_priority_mask(struct bnx2x * bp,u8 cos_entry,u32 priority_mask,u8 port)2098 static int bnx2x_pfc_nig_rx_priority_mask(struct bnx2x *bp,
2099 					   u8 cos_entry,
2100 					   u32 priority_mask, u8 port)
2101 {
2102 	u32 nig_reg_rx_priority_mask_add = 0;
2103 
2104 	switch (cos_entry) {
2105 	case 0:
2106 	     nig_reg_rx_priority_mask_add = (port) ?
2107 		 NIG_REG_P1_RX_COS0_PRIORITY_MASK :
2108 		 NIG_REG_P0_RX_COS0_PRIORITY_MASK;
2109 	     break;
2110 	case 1:
2111 	    nig_reg_rx_priority_mask_add = (port) ?
2112 		NIG_REG_P1_RX_COS1_PRIORITY_MASK :
2113 		NIG_REG_P0_RX_COS1_PRIORITY_MASK;
2114 	    break;
2115 	case 2:
2116 	    nig_reg_rx_priority_mask_add = (port) ?
2117 		NIG_REG_P1_RX_COS2_PRIORITY_MASK :
2118 		NIG_REG_P0_RX_COS2_PRIORITY_MASK;
2119 	    break;
2120 	case 3:
2121 	    if (port)
2122 		return -EINVAL;
2123 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS3_PRIORITY_MASK;
2124 	    break;
2125 	case 4:
2126 	    if (port)
2127 		return -EINVAL;
2128 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS4_PRIORITY_MASK;
2129 	    break;
2130 	case 5:
2131 	    if (port)
2132 		return -EINVAL;
2133 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS5_PRIORITY_MASK;
2134 	    break;
2135 	}
2136 
2137 	REG_WR(bp, nig_reg_rx_priority_mask_add, priority_mask);
2138 
2139 	return 0;
2140 }
bnx2x_update_mng(struct link_params * params,u32 link_status)2141 static void bnx2x_update_mng(struct link_params *params, u32 link_status)
2142 {
2143 	struct bnx2x *bp = params->bp;
2144 
2145 	REG_WR(bp, params->shmem_base +
2146 	       offsetof(struct shmem_region,
2147 			port_mb[params->port].link_status), link_status);
2148 }
2149 
bnx2x_update_link_attr(struct link_params * params,u32 link_attr)2150 static void bnx2x_update_link_attr(struct link_params *params, u32 link_attr)
2151 {
2152 	struct bnx2x *bp = params->bp;
2153 
2154 	if (SHMEM2_HAS(bp, link_attr_sync))
2155 		REG_WR(bp, params->shmem2_base +
2156 		       offsetof(struct shmem2_region,
2157 				link_attr_sync[params->port]), link_attr);
2158 }
2159 
bnx2x_update_pfc_nig(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * nig_params)2160 static void bnx2x_update_pfc_nig(struct link_params *params,
2161 		struct link_vars *vars,
2162 		struct bnx2x_nig_brb_pfc_port_params *nig_params)
2163 {
2164 	u32 xcm_mask = 0, ppp_enable = 0, pause_enable = 0, llfc_out_en = 0;
2165 	u32 llfc_enable = 0, xcm_out_en = 0, hwpfc_enable = 0;
2166 	u32 pkt_priority_to_cos = 0;
2167 	struct bnx2x *bp = params->bp;
2168 	u8 port = params->port;
2169 
2170 	int set_pfc = params->feature_config_flags &
2171 		FEATURE_CONFIG_PFC_ENABLED;
2172 	DP(NETIF_MSG_LINK, "updating pfc nig parameters\n");
2173 
2174 	/* When NIG_LLH0_XCM_MASK_REG_LLHX_XCM_MASK_BCN bit is set
2175 	 * MAC control frames (that are not pause packets)
2176 	 * will be forwarded to the XCM.
2177 	 */
2178 	xcm_mask = REG_RD(bp, port ? NIG_REG_LLH1_XCM_MASK :
2179 			  NIG_REG_LLH0_XCM_MASK);
2180 	/* NIG params will override non PFC params, since it's possible to
2181 	 * do transition from PFC to SAFC
2182 	 */
2183 	if (set_pfc) {
2184 		pause_enable = 0;
2185 		llfc_out_en = 0;
2186 		llfc_enable = 0;
2187 		if (CHIP_IS_E3(bp))
2188 			ppp_enable = 0;
2189 		else
2190 			ppp_enable = 1;
2191 		xcm_mask &= ~(port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2192 				     NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2193 		xcm_out_en = 0;
2194 		hwpfc_enable = 1;
2195 	} else  {
2196 		if (nig_params) {
2197 			llfc_out_en = nig_params->llfc_out_en;
2198 			llfc_enable = nig_params->llfc_enable;
2199 			pause_enable = nig_params->pause_enable;
2200 		} else  /* Default non PFC mode - PAUSE */
2201 			pause_enable = 1;
2202 
2203 		xcm_mask |= (port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2204 			NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2205 		xcm_out_en = 1;
2206 	}
2207 
2208 	if (CHIP_IS_E3(bp))
2209 		REG_WR(bp, port ? NIG_REG_BRB1_PAUSE_IN_EN :
2210 		       NIG_REG_BRB0_PAUSE_IN_EN, pause_enable);
2211 	REG_WR(bp, port ? NIG_REG_LLFC_OUT_EN_1 :
2212 	       NIG_REG_LLFC_OUT_EN_0, llfc_out_en);
2213 	REG_WR(bp, port ? NIG_REG_LLFC_ENABLE_1 :
2214 	       NIG_REG_LLFC_ENABLE_0, llfc_enable);
2215 	REG_WR(bp, port ? NIG_REG_PAUSE_ENABLE_1 :
2216 	       NIG_REG_PAUSE_ENABLE_0, pause_enable);
2217 
2218 	REG_WR(bp, port ? NIG_REG_PPP_ENABLE_1 :
2219 	       NIG_REG_PPP_ENABLE_0, ppp_enable);
2220 
2221 	REG_WR(bp, port ? NIG_REG_LLH1_XCM_MASK :
2222 	       NIG_REG_LLH0_XCM_MASK, xcm_mask);
2223 
2224 	REG_WR(bp, port ? NIG_REG_LLFC_EGRESS_SRC_ENABLE_1 :
2225 	       NIG_REG_LLFC_EGRESS_SRC_ENABLE_0, 0x7);
2226 
2227 	/* Output enable for RX_XCM # IF */
2228 	REG_WR(bp, port ? NIG_REG_XCM1_OUT_EN :
2229 	       NIG_REG_XCM0_OUT_EN, xcm_out_en);
2230 
2231 	/* HW PFC TX enable */
2232 	REG_WR(bp, port ? NIG_REG_P1_HWPFC_ENABLE :
2233 	       NIG_REG_P0_HWPFC_ENABLE, hwpfc_enable);
2234 
2235 	if (nig_params) {
2236 		u8 i = 0;
2237 		pkt_priority_to_cos = nig_params->pkt_priority_to_cos;
2238 
2239 		for (i = 0; i < nig_params->num_of_rx_cos_priority_mask; i++)
2240 			bnx2x_pfc_nig_rx_priority_mask(bp, i,
2241 		nig_params->rx_cos_priority_mask[i], port);
2242 
2243 		REG_WR(bp, port ? NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_1 :
2244 		       NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_0,
2245 		       nig_params->llfc_high_priority_classes);
2246 
2247 		REG_WR(bp, port ? NIG_REG_LLFC_LOW_PRIORITY_CLASSES_1 :
2248 		       NIG_REG_LLFC_LOW_PRIORITY_CLASSES_0,
2249 		       nig_params->llfc_low_priority_classes);
2250 	}
2251 	REG_WR(bp, port ? NIG_REG_P1_PKT_PRIORITY_TO_COS :
2252 	       NIG_REG_P0_PKT_PRIORITY_TO_COS,
2253 	       pkt_priority_to_cos);
2254 }
2255 
bnx2x_update_pfc(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * pfc_params)2256 int bnx2x_update_pfc(struct link_params *params,
2257 		      struct link_vars *vars,
2258 		      struct bnx2x_nig_brb_pfc_port_params *pfc_params)
2259 {
2260 	/* The PFC and pause are orthogonal to one another, meaning when
2261 	 * PFC is enabled, the pause are disabled, and when PFC is
2262 	 * disabled, pause are set according to the pause result.
2263 	 */
2264 	u32 val;
2265 	struct bnx2x *bp = params->bp;
2266 	int bnx2x_status = 0;
2267 	u8 bmac_loopback = (params->loopback_mode == LOOPBACK_BMAC);
2268 
2269 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2270 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
2271 	else
2272 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
2273 
2274 	bnx2x_update_mng(params, vars->link_status);
2275 
2276 	/* Update NIG params */
2277 	bnx2x_update_pfc_nig(params, vars, pfc_params);
2278 
2279 	if (!vars->link_up)
2280 		return bnx2x_status;
2281 
2282 	DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n");
2283 
2284 	if (CHIP_IS_E3(bp)) {
2285 		if (vars->mac_type == MAC_TYPE_XMAC)
2286 			bnx2x_update_pfc_xmac(params, vars, 0);
2287 	} else {
2288 		val = REG_RD(bp, MISC_REG_RESET_REG_2);
2289 		if ((val &
2290 		     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))
2291 		    == 0) {
2292 			DP(NETIF_MSG_LINK, "About to update PFC in EMAC\n");
2293 			bnx2x_emac_enable(params, vars, 0);
2294 			return bnx2x_status;
2295 		}
2296 		if (CHIP_IS_E2(bp))
2297 			bnx2x_update_pfc_bmac2(params, vars, bmac_loopback);
2298 		else
2299 			bnx2x_update_pfc_bmac1(params, vars);
2300 
2301 		val = 0;
2302 		if ((params->feature_config_flags &
2303 		     FEATURE_CONFIG_PFC_ENABLED) ||
2304 		    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2305 			val = 1;
2306 		REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + params->port*4, val);
2307 	}
2308 	return bnx2x_status;
2309 }
2310 
bnx2x_bmac1_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2311 static int bnx2x_bmac1_enable(struct link_params *params,
2312 			      struct link_vars *vars,
2313 			      u8 is_lb)
2314 {
2315 	struct bnx2x *bp = params->bp;
2316 	u8 port = params->port;
2317 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2318 			       NIG_REG_INGRESS_BMAC0_MEM;
2319 	u32 wb_data[2];
2320 	u32 val;
2321 
2322 	DP(NETIF_MSG_LINK, "Enabling BigMAC1\n");
2323 
2324 	/* XGXS control */
2325 	wb_data[0] = 0x3c;
2326 	wb_data[1] = 0;
2327 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_XGXS_CONTROL,
2328 		    wb_data, 2);
2329 
2330 	/* TX MAC SA */
2331 	wb_data[0] = ((params->mac_addr[2] << 24) |
2332 		       (params->mac_addr[3] << 16) |
2333 		       (params->mac_addr[4] << 8) |
2334 			params->mac_addr[5]);
2335 	wb_data[1] = ((params->mac_addr[0] << 8) |
2336 			params->mac_addr[1]);
2337 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_SOURCE_ADDR, wb_data, 2);
2338 
2339 	/* MAC control */
2340 	val = 0x3;
2341 	if (is_lb) {
2342 		val |= 0x4;
2343 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2344 	}
2345 	wb_data[0] = val;
2346 	wb_data[1] = 0;
2347 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_CONTROL, wb_data, 2);
2348 
2349 	/* Set rx mtu */
2350 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2351 	wb_data[1] = 0;
2352 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_MAX_SIZE, wb_data, 2);
2353 
2354 	bnx2x_update_pfc_bmac1(params, vars);
2355 
2356 	/* Set tx mtu */
2357 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2358 	wb_data[1] = 0;
2359 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_MAX_SIZE, wb_data, 2);
2360 
2361 	/* Set cnt max size */
2362 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2363 	wb_data[1] = 0;
2364 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2365 
2366 	/* Configure SAFC */
2367 	wb_data[0] = 0x1000200;
2368 	wb_data[1] = 0;
2369 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_LLFC_MSG_FLDS,
2370 		    wb_data, 2);
2371 
2372 	return 0;
2373 }
2374 
bnx2x_bmac2_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2375 static int bnx2x_bmac2_enable(struct link_params *params,
2376 			      struct link_vars *vars,
2377 			      u8 is_lb)
2378 {
2379 	struct bnx2x *bp = params->bp;
2380 	u8 port = params->port;
2381 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2382 			       NIG_REG_INGRESS_BMAC0_MEM;
2383 	u32 wb_data[2];
2384 
2385 	DP(NETIF_MSG_LINK, "Enabling BigMAC2\n");
2386 
2387 	wb_data[0] = 0;
2388 	wb_data[1] = 0;
2389 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2390 	udelay(30);
2391 
2392 	/* XGXS control: Reset phy HW, MDIO registers, PHY PLL and BMAC */
2393 	wb_data[0] = 0x3c;
2394 	wb_data[1] = 0;
2395 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_XGXS_CONTROL,
2396 		    wb_data, 2);
2397 
2398 	udelay(30);
2399 
2400 	/* TX MAC SA */
2401 	wb_data[0] = ((params->mac_addr[2] << 24) |
2402 		       (params->mac_addr[3] << 16) |
2403 		       (params->mac_addr[4] << 8) |
2404 			params->mac_addr[5]);
2405 	wb_data[1] = ((params->mac_addr[0] << 8) |
2406 			params->mac_addr[1]);
2407 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_SOURCE_ADDR,
2408 		    wb_data, 2);
2409 
2410 	udelay(30);
2411 
2412 	/* Configure SAFC */
2413 	wb_data[0] = 0x1000200;
2414 	wb_data[1] = 0;
2415 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_LLFC_MSG_FLDS,
2416 		    wb_data, 2);
2417 	udelay(30);
2418 
2419 	/* Set RX MTU */
2420 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2421 	wb_data[1] = 0;
2422 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_MAX_SIZE, wb_data, 2);
2423 	udelay(30);
2424 
2425 	/* Set TX MTU */
2426 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2427 	wb_data[1] = 0;
2428 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_MAX_SIZE, wb_data, 2);
2429 	udelay(30);
2430 	/* Set cnt max size */
2431 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD - 2;
2432 	wb_data[1] = 0;
2433 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2434 	udelay(30);
2435 	bnx2x_update_pfc_bmac2(params, vars, is_lb);
2436 
2437 	return 0;
2438 }
2439 
bnx2x_bmac_enable(struct link_params * params,struct link_vars * vars,u8 is_lb,u8 reset_bmac)2440 static int bnx2x_bmac_enable(struct link_params *params,
2441 			     struct link_vars *vars,
2442 			     u8 is_lb, u8 reset_bmac)
2443 {
2444 	int rc = 0;
2445 	u8 port = params->port;
2446 	struct bnx2x *bp = params->bp;
2447 	u32 val;
2448 	/* Reset and unreset the BigMac */
2449 	if (reset_bmac) {
2450 		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
2451 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2452 		usleep_range(1000, 2000);
2453 	}
2454 
2455 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
2456 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2457 
2458 	/* Enable access for bmac registers */
2459 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x1);
2460 
2461 	/* Enable BMAC according to BMAC type*/
2462 	if (CHIP_IS_E2(bp))
2463 		rc = bnx2x_bmac2_enable(params, vars, is_lb);
2464 	else
2465 		rc = bnx2x_bmac1_enable(params, vars, is_lb);
2466 	REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0x1);
2467 	REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 0x0);
2468 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 0x0);
2469 	val = 0;
2470 	if ((params->feature_config_flags &
2471 	      FEATURE_CONFIG_PFC_ENABLED) ||
2472 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2473 		val = 1;
2474 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, val);
2475 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x0);
2476 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x0);
2477 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, 0x0);
2478 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x1);
2479 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x1);
2480 
2481 	vars->mac_type = MAC_TYPE_BMAC;
2482 	return rc;
2483 }
2484 
bnx2x_set_bmac_rx(struct bnx2x * bp,u32 chip_id,u8 port,u8 en)2485 static void bnx2x_set_bmac_rx(struct bnx2x *bp, u32 chip_id, u8 port, u8 en)
2486 {
2487 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2488 			NIG_REG_INGRESS_BMAC0_MEM;
2489 	u32 wb_data[2];
2490 	u32 nig_bmac_enable = REG_RD(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4);
2491 
2492 	if (CHIP_IS_E2(bp))
2493 		bmac_addr += BIGMAC2_REGISTER_BMAC_CONTROL;
2494 	else
2495 		bmac_addr += BIGMAC_REGISTER_BMAC_CONTROL;
2496 	/* Only if the bmac is out of reset */
2497 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
2498 			(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port) &&
2499 	    nig_bmac_enable) {
2500 		/* Clear Rx Enable bit in BMAC_CONTROL register */
2501 		REG_RD_DMAE(bp, bmac_addr, wb_data, 2);
2502 		if (en)
2503 			wb_data[0] |= BMAC_CONTROL_RX_ENABLE;
2504 		else
2505 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
2506 		REG_WR_DMAE(bp, bmac_addr, wb_data, 2);
2507 		usleep_range(1000, 2000);
2508 	}
2509 }
2510 
bnx2x_pbf_update(struct link_params * params,u32 flow_ctrl,u32 line_speed)2511 static int bnx2x_pbf_update(struct link_params *params, u32 flow_ctrl,
2512 			    u32 line_speed)
2513 {
2514 	struct bnx2x *bp = params->bp;
2515 	u8 port = params->port;
2516 	u32 init_crd, crd;
2517 	u32 count = 1000;
2518 
2519 	/* Disable port */
2520 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x1);
2521 
2522 	/* Wait for init credit */
2523 	init_crd = REG_RD(bp, PBF_REG_P0_INIT_CRD + port*4);
2524 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2525 	DP(NETIF_MSG_LINK, "init_crd 0x%x  crd 0x%x\n", init_crd, crd);
2526 
2527 	while ((init_crd != crd) && count) {
2528 		usleep_range(5000, 10000);
2529 		crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2530 		count--;
2531 	}
2532 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2533 	if (init_crd != crd) {
2534 		DP(NETIF_MSG_LINK, "BUG! init_crd 0x%x != crd 0x%x\n",
2535 			  init_crd, crd);
2536 		return -EINVAL;
2537 	}
2538 
2539 	if (flow_ctrl & BNX2X_FLOW_CTRL_RX ||
2540 	    line_speed == SPEED_10 ||
2541 	    line_speed == SPEED_100 ||
2542 	    line_speed == SPEED_1000 ||
2543 	    line_speed == SPEED_2500) {
2544 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 1);
2545 		/* Update threshold */
2546 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, 0);
2547 		/* Update init credit */
2548 		init_crd = 778;		/* (800-18-4) */
2549 
2550 	} else {
2551 		u32 thresh = (ETH_MAX_JUMBO_PACKET_SIZE +
2552 			      ETH_OVREHEAD)/16;
2553 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
2554 		/* Update threshold */
2555 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, thresh);
2556 		/* Update init credit */
2557 		switch (line_speed) {
2558 		case SPEED_10000:
2559 			init_crd = thresh + 553 - 22;
2560 			break;
2561 		default:
2562 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
2563 				  line_speed);
2564 			return -EINVAL;
2565 		}
2566 	}
2567 	REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, init_crd);
2568 	DP(NETIF_MSG_LINK, "PBF updated to speed %d credit %d\n",
2569 		 line_speed, init_crd);
2570 
2571 	/* Probe the credit changes */
2572 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x1);
2573 	usleep_range(5000, 10000);
2574 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x0);
2575 
2576 	/* Enable port */
2577 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x0);
2578 	return 0;
2579 }
2580 
2581 /**
2582  * bnx2x_get_emac_base - retrive emac base address
2583  *
2584  * @bp:			driver handle
2585  * @mdc_mdio_access:	access type
2586  * @port:		port id
2587  *
2588  * This function selects the MDC/MDIO access (through emac0 or
2589  * emac1) depend on the mdc_mdio_access, port, port swapped. Each
2590  * phy has a default access mode, which could also be overridden
2591  * by nvram configuration. This parameter, whether this is the
2592  * default phy configuration, or the nvram overrun
2593  * configuration, is passed here as mdc_mdio_access and selects
2594  * the emac_base for the CL45 read/writes operations
2595  */
bnx2x_get_emac_base(struct bnx2x * bp,u32 mdc_mdio_access,u8 port)2596 static u32 bnx2x_get_emac_base(struct bnx2x *bp,
2597 			       u32 mdc_mdio_access, u8 port)
2598 {
2599 	u32 emac_base = 0;
2600 	switch (mdc_mdio_access) {
2601 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_PHY_TYPE:
2602 		break;
2603 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC0:
2604 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2605 			emac_base = GRCBASE_EMAC1;
2606 		else
2607 			emac_base = GRCBASE_EMAC0;
2608 		break;
2609 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1:
2610 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2611 			emac_base = GRCBASE_EMAC0;
2612 		else
2613 			emac_base = GRCBASE_EMAC1;
2614 		break;
2615 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH:
2616 		emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
2617 		break;
2618 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED:
2619 		emac_base = (port) ? GRCBASE_EMAC0 : GRCBASE_EMAC1;
2620 		break;
2621 	default:
2622 		break;
2623 	}
2624 	return emac_base;
2625 
2626 }
2627 
2628 /******************************************************************/
2629 /*			CL22 access functions			  */
2630 /******************************************************************/
bnx2x_cl22_write(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 val)2631 static int bnx2x_cl22_write(struct bnx2x *bp,
2632 				       struct bnx2x_phy *phy,
2633 				       u16 reg, u16 val)
2634 {
2635 	u32 tmp, mode;
2636 	u8 i;
2637 	int rc = 0;
2638 	/* Switch to CL22 */
2639 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2640 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2641 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2642 
2643 	/* Address */
2644 	tmp = ((phy->addr << 21) | (reg << 16) | val |
2645 	       EMAC_MDIO_COMM_COMMAND_WRITE_22 |
2646 	       EMAC_MDIO_COMM_START_BUSY);
2647 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2648 
2649 	for (i = 0; i < 50; i++) {
2650 		udelay(10);
2651 
2652 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2653 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2654 			udelay(5);
2655 			break;
2656 		}
2657 	}
2658 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2659 		DP(NETIF_MSG_LINK, "write phy register failed\n");
2660 		rc = -EFAULT;
2661 	}
2662 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2663 	return rc;
2664 }
2665 
bnx2x_cl22_read(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 * ret_val)2666 static int bnx2x_cl22_read(struct bnx2x *bp,
2667 				      struct bnx2x_phy *phy,
2668 				      u16 reg, u16 *ret_val)
2669 {
2670 	u32 val, mode;
2671 	u16 i;
2672 	int rc = 0;
2673 
2674 	/* Switch to CL22 */
2675 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2676 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2677 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2678 
2679 	/* Address */
2680 	val = ((phy->addr << 21) | (reg << 16) |
2681 	       EMAC_MDIO_COMM_COMMAND_READ_22 |
2682 	       EMAC_MDIO_COMM_START_BUSY);
2683 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2684 
2685 	for (i = 0; i < 50; i++) {
2686 		udelay(10);
2687 
2688 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2689 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2690 			*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2691 			udelay(5);
2692 			break;
2693 		}
2694 	}
2695 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2696 		DP(NETIF_MSG_LINK, "read phy register failed\n");
2697 
2698 		*ret_val = 0;
2699 		rc = -EFAULT;
2700 	}
2701 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2702 	return rc;
2703 }
2704 
2705 /******************************************************************/
2706 /*			CL45 access functions			  */
2707 /******************************************************************/
bnx2x_cl45_read(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 * ret_val)2708 static int bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
2709 			   u8 devad, u16 reg, u16 *ret_val)
2710 {
2711 	u32 val;
2712 	u16 i;
2713 	int rc = 0;
2714 	u32 chip_id;
2715 	if (phy->flags & FLAGS_MDC_MDIO_WA_G) {
2716 		chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
2717 			  ((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
2718 		bnx2x_set_mdio_clk(bp, chip_id, phy->mdio_ctrl);
2719 	}
2720 
2721 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2722 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2723 			      EMAC_MDIO_STATUS_10MB);
2724 	/* Address */
2725 	val = ((phy->addr << 21) | (devad << 16) | reg |
2726 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
2727 	       EMAC_MDIO_COMM_START_BUSY);
2728 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2729 
2730 	for (i = 0; i < 50; i++) {
2731 		udelay(10);
2732 
2733 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2734 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2735 			udelay(5);
2736 			break;
2737 		}
2738 	}
2739 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2740 		DP(NETIF_MSG_LINK, "read phy register failed\n");
2741 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2742 		*ret_val = 0;
2743 		rc = -EFAULT;
2744 	} else {
2745 		/* Data */
2746 		val = ((phy->addr << 21) | (devad << 16) |
2747 		       EMAC_MDIO_COMM_COMMAND_READ_45 |
2748 		       EMAC_MDIO_COMM_START_BUSY);
2749 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2750 
2751 		for (i = 0; i < 50; i++) {
2752 			udelay(10);
2753 
2754 			val = REG_RD(bp, phy->mdio_ctrl +
2755 				     EMAC_REG_EMAC_MDIO_COMM);
2756 			if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2757 				*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2758 				break;
2759 			}
2760 		}
2761 		if (val & EMAC_MDIO_COMM_START_BUSY) {
2762 			DP(NETIF_MSG_LINK, "read phy register failed\n");
2763 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2764 			*ret_val = 0;
2765 			rc = -EFAULT;
2766 		}
2767 	}
2768 	/* Work around for E3 A0 */
2769 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
2770 		phy->flags ^= FLAGS_DUMMY_READ;
2771 		if (phy->flags & FLAGS_DUMMY_READ) {
2772 			u16 temp_val;
2773 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
2774 		}
2775 	}
2776 
2777 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2778 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2779 			       EMAC_MDIO_STATUS_10MB);
2780 	return rc;
2781 }
2782 
bnx2x_cl45_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 val)2783 static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
2784 			    u8 devad, u16 reg, u16 val)
2785 {
2786 	u32 tmp;
2787 	u8 i;
2788 	int rc = 0;
2789 	u32 chip_id;
2790 	if (phy->flags & FLAGS_MDC_MDIO_WA_G) {
2791 		chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
2792 			  ((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
2793 		bnx2x_set_mdio_clk(bp, chip_id, phy->mdio_ctrl);
2794 	}
2795 
2796 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2797 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2798 			      EMAC_MDIO_STATUS_10MB);
2799 
2800 	/* Address */
2801 	tmp = ((phy->addr << 21) | (devad << 16) | reg |
2802 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
2803 	       EMAC_MDIO_COMM_START_BUSY);
2804 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2805 
2806 	for (i = 0; i < 50; i++) {
2807 		udelay(10);
2808 
2809 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2810 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2811 			udelay(5);
2812 			break;
2813 		}
2814 	}
2815 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2816 		DP(NETIF_MSG_LINK, "write phy register failed\n");
2817 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2818 		rc = -EFAULT;
2819 	} else {
2820 		/* Data */
2821 		tmp = ((phy->addr << 21) | (devad << 16) | val |
2822 		       EMAC_MDIO_COMM_COMMAND_WRITE_45 |
2823 		       EMAC_MDIO_COMM_START_BUSY);
2824 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2825 
2826 		for (i = 0; i < 50; i++) {
2827 			udelay(10);
2828 
2829 			tmp = REG_RD(bp, phy->mdio_ctrl +
2830 				     EMAC_REG_EMAC_MDIO_COMM);
2831 			if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2832 				udelay(5);
2833 				break;
2834 			}
2835 		}
2836 		if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2837 			DP(NETIF_MSG_LINK, "write phy register failed\n");
2838 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
2839 			rc = -EFAULT;
2840 		}
2841 	}
2842 	/* Work around for E3 A0 */
2843 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
2844 		phy->flags ^= FLAGS_DUMMY_READ;
2845 		if (phy->flags & FLAGS_DUMMY_READ) {
2846 			u16 temp_val;
2847 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
2848 		}
2849 	}
2850 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
2851 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2852 			       EMAC_MDIO_STATUS_10MB);
2853 	return rc;
2854 }
2855 
2856 /******************************************************************/
2857 /*			EEE section				   */
2858 /******************************************************************/
bnx2x_eee_has_cap(struct link_params * params)2859 static u8 bnx2x_eee_has_cap(struct link_params *params)
2860 {
2861 	struct bnx2x *bp = params->bp;
2862 
2863 	if (REG_RD(bp, params->shmem2_base) <=
2864 		   offsetof(struct shmem2_region, eee_status[params->port]))
2865 		return 0;
2866 
2867 	return 1;
2868 }
2869 
bnx2x_eee_nvram_to_time(u32 nvram_mode,u32 * idle_timer)2870 static int bnx2x_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
2871 {
2872 	switch (nvram_mode) {
2873 	case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
2874 		*idle_timer = EEE_MODE_NVRAM_BALANCED_TIME;
2875 		break;
2876 	case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
2877 		*idle_timer = EEE_MODE_NVRAM_AGGRESSIVE_TIME;
2878 		break;
2879 	case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
2880 		*idle_timer = EEE_MODE_NVRAM_LATENCY_TIME;
2881 		break;
2882 	default:
2883 		*idle_timer = 0;
2884 		break;
2885 	}
2886 
2887 	return 0;
2888 }
2889 
bnx2x_eee_time_to_nvram(u32 idle_timer,u32 * nvram_mode)2890 static int bnx2x_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
2891 {
2892 	switch (idle_timer) {
2893 	case EEE_MODE_NVRAM_BALANCED_TIME:
2894 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
2895 		break;
2896 	case EEE_MODE_NVRAM_AGGRESSIVE_TIME:
2897 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
2898 		break;
2899 	case EEE_MODE_NVRAM_LATENCY_TIME:
2900 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
2901 		break;
2902 	default:
2903 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
2904 		break;
2905 	}
2906 
2907 	return 0;
2908 }
2909 
bnx2x_eee_calc_timer(struct link_params * params)2910 static u32 bnx2x_eee_calc_timer(struct link_params *params)
2911 {
2912 	u32 eee_mode, eee_idle;
2913 	struct bnx2x *bp = params->bp;
2914 
2915 	if (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) {
2916 		if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
2917 			/* time value in eee_mode --> used directly*/
2918 			eee_idle = params->eee_mode & EEE_MODE_TIMER_MASK;
2919 		} else {
2920 			/* hsi value in eee_mode --> time */
2921 			if (bnx2x_eee_nvram_to_time(params->eee_mode &
2922 						    EEE_MODE_NVRAM_MASK,
2923 						    &eee_idle))
2924 				return 0;
2925 		}
2926 	} else {
2927 		/* hsi values in nvram --> time*/
2928 		eee_mode = ((REG_RD(bp, params->shmem_base +
2929 				    offsetof(struct shmem_region, dev_info.
2930 				    port_feature_config[params->port].
2931 				    eee_power_mode)) &
2932 			     PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
2933 			    PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
2934 
2935 		if (bnx2x_eee_nvram_to_time(eee_mode, &eee_idle))
2936 			return 0;
2937 	}
2938 
2939 	return eee_idle;
2940 }
2941 
bnx2x_eee_set_timers(struct link_params * params,struct link_vars * vars)2942 static int bnx2x_eee_set_timers(struct link_params *params,
2943 				   struct link_vars *vars)
2944 {
2945 	u32 eee_idle = 0, eee_mode;
2946 	struct bnx2x *bp = params->bp;
2947 
2948 	eee_idle = bnx2x_eee_calc_timer(params);
2949 
2950 	if (eee_idle) {
2951 		REG_WR(bp, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
2952 		       eee_idle);
2953 	} else if ((params->eee_mode & EEE_MODE_ENABLE_LPI) &&
2954 		   (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) &&
2955 		   (params->eee_mode & EEE_MODE_OUTPUT_TIME)) {
2956 		DP(NETIF_MSG_LINK, "Error: Tx LPI is enabled with timer 0\n");
2957 		return -EINVAL;
2958 	}
2959 
2960 	vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
2961 	if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
2962 		/* eee_idle in 1u --> eee_status in 16u */
2963 		eee_idle >>= 4;
2964 		vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
2965 				    SHMEM_EEE_TIME_OUTPUT_BIT;
2966 	} else {
2967 		if (bnx2x_eee_time_to_nvram(eee_idle, &eee_mode))
2968 			return -EINVAL;
2969 		vars->eee_status |= eee_mode;
2970 	}
2971 
2972 	return 0;
2973 }
2974 
bnx2x_eee_initial_config(struct link_params * params,struct link_vars * vars,u8 mode)2975 static int bnx2x_eee_initial_config(struct link_params *params,
2976 				     struct link_vars *vars, u8 mode)
2977 {
2978 	vars->eee_status |= ((u32) mode) << SHMEM_EEE_SUPPORTED_SHIFT;
2979 
2980 	/* Propogate params' bits --> vars (for migration exposure) */
2981 	if (params->eee_mode & EEE_MODE_ENABLE_LPI)
2982 		vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
2983 	else
2984 		vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
2985 
2986 	if (params->eee_mode & EEE_MODE_ADV_LPI)
2987 		vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
2988 	else
2989 		vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
2990 
2991 	return bnx2x_eee_set_timers(params, vars);
2992 }
2993 
bnx2x_eee_disable(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)2994 static int bnx2x_eee_disable(struct bnx2x_phy *phy,
2995 				struct link_params *params,
2996 				struct link_vars *vars)
2997 {
2998 	struct bnx2x *bp = params->bp;
2999 
3000 	/* Make Certain LPI is disabled */
3001 	REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
3002 
3003 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x0);
3004 
3005 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
3006 
3007 	return 0;
3008 }
3009 
bnx2x_eee_advertise(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u8 modes)3010 static int bnx2x_eee_advertise(struct bnx2x_phy *phy,
3011 				  struct link_params *params,
3012 				  struct link_vars *vars, u8 modes)
3013 {
3014 	struct bnx2x *bp = params->bp;
3015 	u16 val = 0;
3016 
3017 	/* Mask events preventing LPI generation */
3018 	REG_WR(bp, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
3019 
3020 	if (modes & SHMEM_EEE_10G_ADV) {
3021 		DP(NETIF_MSG_LINK, "Advertise 10GBase-T EEE\n");
3022 		val |= 0x8;
3023 	}
3024 	if (modes & SHMEM_EEE_1G_ADV) {
3025 		DP(NETIF_MSG_LINK, "Advertise 1GBase-T EEE\n");
3026 		val |= 0x4;
3027 	}
3028 
3029 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, val);
3030 
3031 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
3032 	vars->eee_status |= (modes << SHMEM_EEE_ADV_STATUS_SHIFT);
3033 
3034 	return 0;
3035 }
3036 
bnx2x_update_mng_eee(struct link_params * params,u32 eee_status)3037 static void bnx2x_update_mng_eee(struct link_params *params, u32 eee_status)
3038 {
3039 	struct bnx2x *bp = params->bp;
3040 
3041 	if (bnx2x_eee_has_cap(params))
3042 		REG_WR(bp, params->shmem2_base +
3043 		       offsetof(struct shmem2_region,
3044 				eee_status[params->port]), eee_status);
3045 }
3046 
bnx2x_eee_an_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3047 static void bnx2x_eee_an_resolve(struct bnx2x_phy *phy,
3048 				  struct link_params *params,
3049 				  struct link_vars *vars)
3050 {
3051 	struct bnx2x *bp = params->bp;
3052 	u16 adv = 0, lp = 0;
3053 	u32 lp_adv = 0;
3054 	u8 neg = 0;
3055 
3056 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, &adv);
3057 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_LP_EEE_ADV, &lp);
3058 
3059 	if (lp & 0x2) {
3060 		lp_adv |= SHMEM_EEE_100M_ADV;
3061 		if (adv & 0x2) {
3062 			if (vars->line_speed == SPEED_100)
3063 				neg = 1;
3064 			DP(NETIF_MSG_LINK, "EEE negotiated - 100M\n");
3065 		}
3066 	}
3067 	if (lp & 0x14) {
3068 		lp_adv |= SHMEM_EEE_1G_ADV;
3069 		if (adv & 0x14) {
3070 			if (vars->line_speed == SPEED_1000)
3071 				neg = 1;
3072 			DP(NETIF_MSG_LINK, "EEE negotiated - 1G\n");
3073 		}
3074 	}
3075 	if (lp & 0x68) {
3076 		lp_adv |= SHMEM_EEE_10G_ADV;
3077 		if (adv & 0x68) {
3078 			if (vars->line_speed == SPEED_10000)
3079 				neg = 1;
3080 			DP(NETIF_MSG_LINK, "EEE negotiated - 10G\n");
3081 		}
3082 	}
3083 
3084 	vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
3085 	vars->eee_status |= (lp_adv << SHMEM_EEE_LP_ADV_STATUS_SHIFT);
3086 
3087 	if (neg) {
3088 		DP(NETIF_MSG_LINK, "EEE is active\n");
3089 		vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
3090 	}
3091 
3092 }
3093 
3094 /******************************************************************/
3095 /*			BSC access functions from E3	          */
3096 /******************************************************************/
bnx2x_bsc_module_sel(struct link_params * params)3097 static void bnx2x_bsc_module_sel(struct link_params *params)
3098 {
3099 	int idx;
3100 	u32 board_cfg, sfp_ctrl;
3101 	u32 i2c_pins[I2C_SWITCH_WIDTH], i2c_val[I2C_SWITCH_WIDTH];
3102 	struct bnx2x *bp = params->bp;
3103 	u8 port = params->port;
3104 	/* Read I2C output PINs */
3105 	board_cfg = REG_RD(bp, params->shmem_base +
3106 			   offsetof(struct shmem_region,
3107 				    dev_info.shared_hw_config.board));
3108 	i2c_pins[I2C_BSC0] = board_cfg & SHARED_HW_CFG_E3_I2C_MUX0_MASK;
3109 	i2c_pins[I2C_BSC1] = (board_cfg & SHARED_HW_CFG_E3_I2C_MUX1_MASK) >>
3110 			SHARED_HW_CFG_E3_I2C_MUX1_SHIFT;
3111 
3112 	/* Read I2C output value */
3113 	sfp_ctrl = REG_RD(bp, params->shmem_base +
3114 			  offsetof(struct shmem_region,
3115 				 dev_info.port_hw_config[port].e3_cmn_pin_cfg));
3116 	i2c_val[I2C_BSC0] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX0_MASK) > 0;
3117 	i2c_val[I2C_BSC1] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX1_MASK) > 0;
3118 	DP(NETIF_MSG_LINK, "Setting BSC switch\n");
3119 	for (idx = 0; idx < I2C_SWITCH_WIDTH; idx++)
3120 		bnx2x_set_cfg_pin(bp, i2c_pins[idx], i2c_val[idx]);
3121 }
3122 
bnx2x_bsc_read(struct link_params * params,struct bnx2x_phy * phy,u8 sl_devid,u16 sl_addr,u8 lc_addr,u8 xfer_cnt,u32 * data_array)3123 static int bnx2x_bsc_read(struct link_params *params,
3124 			  struct bnx2x_phy *phy,
3125 			  u8 sl_devid,
3126 			  u16 sl_addr,
3127 			  u8 lc_addr,
3128 			  u8 xfer_cnt,
3129 			  u32 *data_array)
3130 {
3131 	u32 val, i;
3132 	int rc = 0;
3133 	struct bnx2x *bp = params->bp;
3134 
3135 	if (xfer_cnt > 16) {
3136 		DP(NETIF_MSG_LINK, "invalid xfer_cnt %d. Max is 16 bytes\n",
3137 					xfer_cnt);
3138 		return -EINVAL;
3139 	}
3140 	bnx2x_bsc_module_sel(params);
3141 
3142 	xfer_cnt = 16 - lc_addr;
3143 
3144 	/* Enable the engine */
3145 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3146 	val |= MCPR_IMC_COMMAND_ENABLE;
3147 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3148 
3149 	/* Program slave device ID */
3150 	val = (sl_devid << 16) | sl_addr;
3151 	REG_WR(bp, MCP_REG_MCPR_IMC_SLAVE_CONTROL, val);
3152 
3153 	/* Start xfer with 0 byte to update the address pointer ???*/
3154 	val = (MCPR_IMC_COMMAND_ENABLE) |
3155 	      (MCPR_IMC_COMMAND_WRITE_OP <<
3156 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3157 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) | (0);
3158 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3159 
3160 	/* Poll for completion */
3161 	i = 0;
3162 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3163 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3164 		udelay(10);
3165 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3166 		if (i++ > 1000) {
3167 			DP(NETIF_MSG_LINK, "wr 0 byte timed out after %d try\n",
3168 								i);
3169 			rc = -EFAULT;
3170 			break;
3171 		}
3172 	}
3173 	if (rc == -EFAULT)
3174 		return rc;
3175 
3176 	/* Start xfer with read op */
3177 	val = (MCPR_IMC_COMMAND_ENABLE) |
3178 		(MCPR_IMC_COMMAND_READ_OP <<
3179 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3180 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) |
3181 		  (xfer_cnt);
3182 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3183 
3184 	/* Poll for completion */
3185 	i = 0;
3186 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3187 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3188 		udelay(10);
3189 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3190 		if (i++ > 1000) {
3191 			DP(NETIF_MSG_LINK, "rd op timed out after %d try\n", i);
3192 			rc = -EFAULT;
3193 			break;
3194 		}
3195 	}
3196 	if (rc == -EFAULT)
3197 		return rc;
3198 
3199 	for (i = (lc_addr >> 2); i < 4; i++) {
3200 		data_array[i] = REG_RD(bp, (MCP_REG_MCPR_IMC_DATAREG0 + i*4));
3201 #ifdef __BIG_ENDIAN
3202 		data_array[i] = ((data_array[i] & 0x000000ff) << 24) |
3203 				((data_array[i] & 0x0000ff00) << 8) |
3204 				((data_array[i] & 0x00ff0000) >> 8) |
3205 				((data_array[i] & 0xff000000) >> 24);
3206 #endif
3207 	}
3208 	return rc;
3209 }
3210 
bnx2x_cl45_read_or_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 or_val)3211 static void bnx2x_cl45_read_or_write(struct bnx2x *bp, struct bnx2x_phy *phy,
3212 				     u8 devad, u16 reg, u16 or_val)
3213 {
3214 	u16 val;
3215 	bnx2x_cl45_read(bp, phy, devad, reg, &val);
3216 	bnx2x_cl45_write(bp, phy, devad, reg, val | or_val);
3217 }
3218 
bnx2x_cl45_read_and_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 and_val)3219 static void bnx2x_cl45_read_and_write(struct bnx2x *bp,
3220 				      struct bnx2x_phy *phy,
3221 				      u8 devad, u16 reg, u16 and_val)
3222 {
3223 	u16 val;
3224 	bnx2x_cl45_read(bp, phy, devad, reg, &val);
3225 	bnx2x_cl45_write(bp, phy, devad, reg, val & and_val);
3226 }
3227 
bnx2x_phy_read(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 * ret_val)3228 int bnx2x_phy_read(struct link_params *params, u8 phy_addr,
3229 		   u8 devad, u16 reg, u16 *ret_val)
3230 {
3231 	u8 phy_index;
3232 	/* Probe for the phy according to the given phy_addr, and execute
3233 	 * the read request on it
3234 	 */
3235 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3236 		if (params->phy[phy_index].addr == phy_addr) {
3237 			return bnx2x_cl45_read(params->bp,
3238 					       &params->phy[phy_index], devad,
3239 					       reg, ret_val);
3240 		}
3241 	}
3242 	return -EINVAL;
3243 }
3244 
bnx2x_phy_write(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 val)3245 int bnx2x_phy_write(struct link_params *params, u8 phy_addr,
3246 		    u8 devad, u16 reg, u16 val)
3247 {
3248 	u8 phy_index;
3249 	/* Probe for the phy according to the given phy_addr, and execute
3250 	 * the write request on it
3251 	 */
3252 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3253 		if (params->phy[phy_index].addr == phy_addr) {
3254 			return bnx2x_cl45_write(params->bp,
3255 						&params->phy[phy_index], devad,
3256 						reg, val);
3257 		}
3258 	}
3259 	return -EINVAL;
3260 }
bnx2x_get_warpcore_lane(struct bnx2x_phy * phy,struct link_params * params)3261 static u8 bnx2x_get_warpcore_lane(struct bnx2x_phy *phy,
3262 				  struct link_params *params)
3263 {
3264 	u8 lane = 0;
3265 	struct bnx2x *bp = params->bp;
3266 	u32 path_swap, path_swap_ovr;
3267 	u8 path, port;
3268 
3269 	path = BP_PATH(bp);
3270 	port = params->port;
3271 
3272 	if (bnx2x_is_4_port_mode(bp)) {
3273 		u32 port_swap, port_swap_ovr;
3274 
3275 		/* Figure out path swap value */
3276 		path_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP_OVWR);
3277 		if (path_swap_ovr & 0x1)
3278 			path_swap = (path_swap_ovr & 0x2);
3279 		else
3280 			path_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP);
3281 
3282 		if (path_swap)
3283 			path = path ^ 1;
3284 
3285 		/* Figure out port swap value */
3286 		port_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP_OVWR);
3287 		if (port_swap_ovr & 0x1)
3288 			port_swap = (port_swap_ovr & 0x2);
3289 		else
3290 			port_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP);
3291 
3292 		if (port_swap)
3293 			port = port ^ 1;
3294 
3295 		lane = (port<<1) + path;
3296 	} else { /* Two port mode - no port swap */
3297 
3298 		/* Figure out path swap value */
3299 		path_swap_ovr =
3300 			REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP_OVWR);
3301 		if (path_swap_ovr & 0x1) {
3302 			path_swap = (path_swap_ovr & 0x2);
3303 		} else {
3304 			path_swap =
3305 				REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP);
3306 		}
3307 		if (path_swap)
3308 			path = path ^ 1;
3309 
3310 		lane = path << 1 ;
3311 	}
3312 	return lane;
3313 }
3314 
bnx2x_set_aer_mmd(struct link_params * params,struct bnx2x_phy * phy)3315 static void bnx2x_set_aer_mmd(struct link_params *params,
3316 			      struct bnx2x_phy *phy)
3317 {
3318 	u32 ser_lane;
3319 	u16 offset, aer_val;
3320 	struct bnx2x *bp = params->bp;
3321 	ser_lane = ((params->lane_config &
3322 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
3323 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
3324 
3325 	offset = (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) ?
3326 		(phy->addr + ser_lane) : 0;
3327 
3328 	if (USES_WARPCORE(bp)) {
3329 		aer_val = bnx2x_get_warpcore_lane(phy, params);
3330 		/* In Dual-lane mode, two lanes are joined together,
3331 		 * so in order to configure them, the AER broadcast method is
3332 		 * used here.
3333 		 * 0x200 is the broadcast address for lanes 0,1
3334 		 * 0x201 is the broadcast address for lanes 2,3
3335 		 */
3336 		if (phy->flags & FLAGS_WC_DUAL_MODE)
3337 			aer_val = (aer_val >> 1) | 0x200;
3338 	} else if (CHIP_IS_E2(bp))
3339 		aer_val = 0x3800 + offset - 1;
3340 	else
3341 		aer_val = 0x3800 + offset;
3342 
3343 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3344 			  MDIO_AER_BLOCK_AER_REG, aer_val);
3345 
3346 }
3347 
3348 /******************************************************************/
3349 /*			Internal phy section			  */
3350 /******************************************************************/
3351 
bnx2x_set_serdes_access(struct bnx2x * bp,u8 port)3352 static void bnx2x_set_serdes_access(struct bnx2x *bp, u8 port)
3353 {
3354 	u32 emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
3355 
3356 	/* Set Clause 22 */
3357 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 1);
3358 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245f8000);
3359 	udelay(500);
3360 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245d000f);
3361 	udelay(500);
3362 	 /* Set Clause 45 */
3363 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 0);
3364 }
3365 
bnx2x_serdes_deassert(struct bnx2x * bp,u8 port)3366 static void bnx2x_serdes_deassert(struct bnx2x *bp, u8 port)
3367 {
3368 	u32 val;
3369 
3370 	DP(NETIF_MSG_LINK, "bnx2x_serdes_deassert\n");
3371 
3372 	val = SERDES_RESET_BITS << (port*16);
3373 
3374 	/* Reset and unreset the SerDes/XGXS */
3375 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3376 	udelay(500);
3377 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3378 
3379 	bnx2x_set_serdes_access(bp, port);
3380 
3381 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_DEVAD + port*0x10,
3382 	       DEFAULT_PHY_DEV_ADDR);
3383 }
3384 
bnx2x_xgxs_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)3385 static void bnx2x_xgxs_specific_func(struct bnx2x_phy *phy,
3386 				     struct link_params *params,
3387 				     u32 action)
3388 {
3389 	struct bnx2x *bp = params->bp;
3390 	switch (action) {
3391 	case PHY_INIT:
3392 		/* Set correct devad */
3393 		REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_ST + params->port*0x18, 0);
3394 		REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + params->port*0x18,
3395 		       phy->def_md_devad);
3396 		break;
3397 	}
3398 }
3399 
bnx2x_xgxs_deassert(struct link_params * params)3400 static void bnx2x_xgxs_deassert(struct link_params *params)
3401 {
3402 	struct bnx2x *bp = params->bp;
3403 	u8 port;
3404 	u32 val;
3405 	DP(NETIF_MSG_LINK, "bnx2x_xgxs_deassert\n");
3406 	port = params->port;
3407 
3408 	val = XGXS_RESET_BITS << (port*16);
3409 
3410 	/* Reset and unreset the SerDes/XGXS */
3411 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3412 	udelay(500);
3413 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3414 	bnx2x_xgxs_specific_func(&params->phy[INT_PHY], params,
3415 				 PHY_INIT);
3416 }
3417 
bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy * phy,struct link_params * params,u16 * ieee_fc)3418 static void bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy *phy,
3419 				     struct link_params *params, u16 *ieee_fc)
3420 {
3421 	struct bnx2x *bp = params->bp;
3422 	*ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
3423 	/* Resolve pause mode and advertisement Please refer to Table
3424 	 * 28B-3 of the 802.3ab-1999 spec
3425 	 */
3426 
3427 	switch (phy->req_flow_ctrl) {
3428 	case BNX2X_FLOW_CTRL_AUTO:
3429 		switch (params->req_fc_auto_adv) {
3430 		case BNX2X_FLOW_CTRL_BOTH:
3431 			*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3432 			break;
3433 		case BNX2X_FLOW_CTRL_RX:
3434 		case BNX2X_FLOW_CTRL_TX:
3435 			*ieee_fc |=
3436 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3437 			break;
3438 		default:
3439 			break;
3440 		}
3441 		break;
3442 	case BNX2X_FLOW_CTRL_TX:
3443 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3444 		break;
3445 
3446 	case BNX2X_FLOW_CTRL_RX:
3447 	case BNX2X_FLOW_CTRL_BOTH:
3448 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3449 		break;
3450 
3451 	case BNX2X_FLOW_CTRL_NONE:
3452 	default:
3453 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
3454 		break;
3455 	}
3456 	DP(NETIF_MSG_LINK, "ieee_fc = 0x%x\n", *ieee_fc);
3457 }
3458 
set_phy_vars(struct link_params * params,struct link_vars * vars)3459 static void set_phy_vars(struct link_params *params,
3460 			 struct link_vars *vars)
3461 {
3462 	struct bnx2x *bp = params->bp;
3463 	u8 actual_phy_idx, phy_index, link_cfg_idx;
3464 	u8 phy_config_swapped = params->multi_phy_config &
3465 			PORT_HW_CFG_PHY_SWAPPED_ENABLED;
3466 	for (phy_index = INT_PHY; phy_index < params->num_phys;
3467 	      phy_index++) {
3468 		link_cfg_idx = LINK_CONFIG_IDX(phy_index);
3469 		actual_phy_idx = phy_index;
3470 		if (phy_config_swapped) {
3471 			if (phy_index == EXT_PHY1)
3472 				actual_phy_idx = EXT_PHY2;
3473 			else if (phy_index == EXT_PHY2)
3474 				actual_phy_idx = EXT_PHY1;
3475 		}
3476 		params->phy[actual_phy_idx].req_flow_ctrl =
3477 			params->req_flow_ctrl[link_cfg_idx];
3478 
3479 		params->phy[actual_phy_idx].req_line_speed =
3480 			params->req_line_speed[link_cfg_idx];
3481 
3482 		params->phy[actual_phy_idx].speed_cap_mask =
3483 			params->speed_cap_mask[link_cfg_idx];
3484 
3485 		params->phy[actual_phy_idx].req_duplex =
3486 			params->req_duplex[link_cfg_idx];
3487 
3488 		if (params->req_line_speed[link_cfg_idx] ==
3489 		    SPEED_AUTO_NEG)
3490 			vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
3491 
3492 		DP(NETIF_MSG_LINK, "req_flow_ctrl %x, req_line_speed %x,"
3493 			   " speed_cap_mask %x\n",
3494 			   params->phy[actual_phy_idx].req_flow_ctrl,
3495 			   params->phy[actual_phy_idx].req_line_speed,
3496 			   params->phy[actual_phy_idx].speed_cap_mask);
3497 	}
3498 }
3499 
bnx2x_ext_phy_set_pause(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)3500 static void bnx2x_ext_phy_set_pause(struct link_params *params,
3501 				    struct bnx2x_phy *phy,
3502 				    struct link_vars *vars)
3503 {
3504 	u16 val;
3505 	struct bnx2x *bp = params->bp;
3506 	/* Read modify write pause advertizing */
3507 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, &val);
3508 
3509 	val &= ~MDIO_AN_REG_ADV_PAUSE_BOTH;
3510 
3511 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
3512 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
3513 	if ((vars->ieee_fc &
3514 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
3515 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
3516 		val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
3517 	}
3518 	if ((vars->ieee_fc &
3519 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
3520 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
3521 		val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
3522 	}
3523 	DP(NETIF_MSG_LINK, "Ext phy AN advertize 0x%x\n", val);
3524 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, val);
3525 }
3526 
bnx2x_pause_resolve(struct link_vars * vars,u32 pause_result)3527 static void bnx2x_pause_resolve(struct link_vars *vars, u32 pause_result)
3528 {						/*  LD	    LP	 */
3529 	switch (pause_result) {			/* ASYM P ASYM P */
3530 	case 0xb:				/*   1  0   1  1 */
3531 		vars->flow_ctrl = BNX2X_FLOW_CTRL_TX;
3532 		break;
3533 
3534 	case 0xe:				/*   1  1   1  0 */
3535 		vars->flow_ctrl = BNX2X_FLOW_CTRL_RX;
3536 		break;
3537 
3538 	case 0x5:				/*   0  1   0  1 */
3539 	case 0x7:				/*   0  1   1  1 */
3540 	case 0xd:				/*   1  1   0  1 */
3541 	case 0xf:				/*   1  1   1  1 */
3542 		vars->flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
3543 		break;
3544 
3545 	default:
3546 		break;
3547 	}
3548 	if (pause_result & (1<<0))
3549 		vars->link_status |= LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE;
3550 	if (pause_result & (1<<1))
3551 		vars->link_status |= LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE;
3552 
3553 }
3554 
bnx2x_ext_phy_update_adv_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3555 static void bnx2x_ext_phy_update_adv_fc(struct bnx2x_phy *phy,
3556 					struct link_params *params,
3557 					struct link_vars *vars)
3558 {
3559 	u16 ld_pause;		/* local */
3560 	u16 lp_pause;		/* link partner */
3561 	u16 pause_result;
3562 	struct bnx2x *bp = params->bp;
3563 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) {
3564 		bnx2x_cl22_read(bp, phy, 0x4, &ld_pause);
3565 		bnx2x_cl22_read(bp, phy, 0x5, &lp_pause);
3566 	} else if (CHIP_IS_E3(bp) &&
3567 		SINGLE_MEDIA_DIRECT(params)) {
3568 		u8 lane = bnx2x_get_warpcore_lane(phy, params);
3569 		u16 gp_status, gp_mask;
3570 		bnx2x_cl45_read(bp, phy,
3571 				MDIO_AN_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_4,
3572 				&gp_status);
3573 		gp_mask = (MDIO_WC_REG_GP2_STATUS_GP_2_4_CL73_AN_CMPL |
3574 			   MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_LP_AN_CAP) <<
3575 			lane;
3576 		if ((gp_status & gp_mask) == gp_mask) {
3577 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3578 					MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3579 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3580 					MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3581 		} else {
3582 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3583 					MDIO_AN_REG_CL37_FC_LD, &ld_pause);
3584 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
3585 					MDIO_AN_REG_CL37_FC_LP, &lp_pause);
3586 			ld_pause = ((ld_pause &
3587 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3588 				    << 3);
3589 			lp_pause = ((lp_pause &
3590 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3591 				    << 3);
3592 		}
3593 	} else {
3594 		bnx2x_cl45_read(bp, phy,
3595 				MDIO_AN_DEVAD,
3596 				MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3597 		bnx2x_cl45_read(bp, phy,
3598 				MDIO_AN_DEVAD,
3599 				MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3600 	}
3601 	pause_result = (ld_pause &
3602 			MDIO_AN_REG_ADV_PAUSE_MASK) >> 8;
3603 	pause_result |= (lp_pause &
3604 			 MDIO_AN_REG_ADV_PAUSE_MASK) >> 10;
3605 	DP(NETIF_MSG_LINK, "Ext PHY pause result 0x%x\n", pause_result);
3606 	bnx2x_pause_resolve(vars, pause_result);
3607 
3608 }
3609 
bnx2x_ext_phy_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3610 static u8 bnx2x_ext_phy_resolve_fc(struct bnx2x_phy *phy,
3611 				   struct link_params *params,
3612 				   struct link_vars *vars)
3613 {
3614 	u8 ret = 0;
3615 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
3616 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO) {
3617 		/* Update the advertised flow-controled of LD/LP in AN */
3618 		if (phy->req_line_speed == SPEED_AUTO_NEG)
3619 			bnx2x_ext_phy_update_adv_fc(phy, params, vars);
3620 		/* But set the flow-control result as the requested one */
3621 		vars->flow_ctrl = phy->req_flow_ctrl;
3622 	} else if (phy->req_line_speed != SPEED_AUTO_NEG)
3623 		vars->flow_ctrl = params->req_fc_auto_adv;
3624 	else if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
3625 		ret = 1;
3626 		bnx2x_ext_phy_update_adv_fc(phy, params, vars);
3627 	}
3628 	return ret;
3629 }
3630 /******************************************************************/
3631 /*			Warpcore section			  */
3632 /******************************************************************/
3633 /* The init_internal_warpcore should mirror the xgxs,
3634  * i.e. reset the lane (if needed), set aer for the
3635  * init configuration, and set/clear SGMII flag. Internal
3636  * phy init is done purely in phy_init stage.
3637  */
3638 #define WC_TX_DRIVER(post2, idriver, ipre) \
3639 	((post2 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) | \
3640 	 (idriver << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) | \
3641 	 (ipre << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET))
3642 
3643 #define WC_TX_FIR(post, main, pre) \
3644 	((post << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) | \
3645 	 (main << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) | \
3646 	 (pre << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET))
3647 
bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3648 static void bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy *phy,
3649 					 struct link_params *params,
3650 					 struct link_vars *vars)
3651 {
3652 	struct bnx2x *bp = params->bp;
3653 	u16 i;
3654 	static struct bnx2x_reg_set reg_set[] = {
3655 		/* Step 1 - Program the TX/RX alignment markers */
3656 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0xa157},
3657 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xcbe2},
3658 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0x7537},
3659 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0xa157},
3660 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xcbe2},
3661 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0x7537},
3662 		/* Step 2 - Configure the NP registers */
3663 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000a},
3664 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6400},
3665 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0620},
3666 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0157},
3667 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x6464},
3668 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x3150},
3669 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x3150},
3670 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0157},
3671 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0620}
3672 	};
3673 	DP(NETIF_MSG_LINK, "Enabling 20G-KR2\n");
3674 
3675 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3676 				 MDIO_WC_REG_CL49_USERB0_CTRL, (3<<6));
3677 
3678 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3679 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3680 				 reg_set[i].val);
3681 
3682 	/* Start KR2 work-around timer which handles BCM8073 link-parner */
3683 	vars->link_attr_sync |= LINK_ATTR_SYNC_KR2_ENABLE;
3684 	bnx2x_update_link_attr(params, vars->link_attr_sync);
3685 }
3686 
bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy * phy,struct link_params * params)3687 static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
3688 					       struct link_params *params)
3689 {
3690 	struct bnx2x *bp = params->bp;
3691 
3692 	DP(NETIF_MSG_LINK, "Configure WC for LPI pass through\n");
3693 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3694 			 MDIO_WC_REG_EEE_COMBO_CONTROL0, 0x7c);
3695 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3696 				 MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
3697 }
3698 
bnx2x_warpcore_restart_AN_KR(struct bnx2x_phy * phy,struct link_params * params)3699 static void bnx2x_warpcore_restart_AN_KR(struct bnx2x_phy *phy,
3700 					 struct link_params *params)
3701 {
3702 	/* Restart autoneg on the leading lane only */
3703 	struct bnx2x *bp = params->bp;
3704 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
3705 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3706 			  MDIO_AER_BLOCK_AER_REG, lane);
3707 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3708 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
3709 
3710 	/* Restore AER */
3711 	bnx2x_set_aer_mmd(params, phy);
3712 }
3713 
bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3714 static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
3715 					struct link_params *params,
3716 					struct link_vars *vars) {
3717 	u16 lane, i, cl72_ctrl, an_adv = 0;
3718 	u16 ucode_ver;
3719 	struct bnx2x *bp = params->bp;
3720 	static struct bnx2x_reg_set reg_set[] = {
3721 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
3722 		{MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0},
3723 		{MDIO_WC_DEVAD, MDIO_WC_REG_RX66_CONTROL, 0x7415},
3724 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x6190},
3725 		/* Disable Autoneg: re-enable it after adv is done. */
3726 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0},
3727 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2},
3728 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0},
3729 	};
3730 	DP(NETIF_MSG_LINK, "Enable Auto Negotiation for KR\n");
3731 	/* Set to default registers that may be overriden by 10G force */
3732 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3733 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3734 				 reg_set[i].val);
3735 
3736 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3737 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &cl72_ctrl);
3738 	cl72_ctrl &= 0x08ff;
3739 	cl72_ctrl |= 0x3800;
3740 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3741 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, cl72_ctrl);
3742 
3743 	/* Check adding advertisement for 1G KX */
3744 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3745 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
3746 	    (vars->line_speed == SPEED_1000)) {
3747 		u16 addr = MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2;
3748 		an_adv |= (1<<5);
3749 
3750 		/* Enable CL37 1G Parallel Detect */
3751 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD, addr, 0x1);
3752 		DP(NETIF_MSG_LINK, "Advertize 1G\n");
3753 	}
3754 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3755 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
3756 	    (vars->line_speed ==  SPEED_10000)) {
3757 		/* Check adding advertisement for 10G KR */
3758 		an_adv |= (1<<7);
3759 		/* Enable 10G Parallel Detect */
3760 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3761 				  MDIO_AER_BLOCK_AER_REG, 0);
3762 
3763 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3764 				 MDIO_WC_REG_PAR_DET_10G_CTRL, 1);
3765 		bnx2x_set_aer_mmd(params, phy);
3766 		DP(NETIF_MSG_LINK, "Advertize 10G\n");
3767 	}
3768 
3769 	/* Set Transmit PMD settings */
3770 	lane = bnx2x_get_warpcore_lane(phy, params);
3771 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3772 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
3773 			 WC_TX_DRIVER(0x02, 0x06, 0x09));
3774 	/* Configure the next lane if dual mode */
3775 	if (phy->flags & FLAGS_WC_DUAL_MODE)
3776 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3777 				 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*(lane+1),
3778 				 WC_TX_DRIVER(0x02, 0x06, 0x09));
3779 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3780 			 MDIO_WC_REG_CL72_USERB0_CL72_OS_DEF_CTRL,
3781 			 0x03f0);
3782 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3783 			 MDIO_WC_REG_CL72_USERB0_CL72_2P5_DEF_CTRL,
3784 			 0x03f0);
3785 
3786 	/* Advertised speeds */
3787 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3788 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, an_adv);
3789 
3790 	/* Advertised and set FEC (Forward Error Correction) */
3791 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3792 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT2,
3793 			 (MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_ABILITY |
3794 			  MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_REQ));
3795 
3796 	/* Enable CL37 BAM */
3797 	if (REG_RD(bp, params->shmem_base +
3798 		   offsetof(struct shmem_region, dev_info.
3799 			    port_hw_config[params->port].default_cfg)) &
3800 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
3801 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3802 					 MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL,
3803 					 1);
3804 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
3805 	}
3806 
3807 	/* Advertise pause */
3808 	bnx2x_ext_phy_set_pause(params, phy, vars);
3809 	/* Set KR Autoneg Work-Around flag for Warpcore version older than D108
3810 	 */
3811 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3812 			MDIO_WC_REG_UC_INFO_B1_VERSION, &ucode_ver);
3813 	if (ucode_ver < 0xd108) {
3814 		DP(NETIF_MSG_LINK, "Enable AN KR work-around. WC ver:0x%x\n",
3815 			       ucode_ver);
3816 		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
3817 	}
3818 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3819 				 MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
3820 
3821 	/* Over 1G - AN local device user page 1 */
3822 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3823 			MDIO_WC_REG_DIGITAL3_UP1, 0x1f);
3824 
3825 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
3826 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)) ||
3827 	    (phy->req_line_speed == SPEED_20000)) {
3828 
3829 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3830 				  MDIO_AER_BLOCK_AER_REG, lane);
3831 
3832 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3833 					 MDIO_WC_REG_RX1_PCI_CTRL + (0x10*lane),
3834 					 (1<<11));
3835 
3836 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3837 				 MDIO_WC_REG_XGXS_X2_CONTROL3, 0x7);
3838 		bnx2x_set_aer_mmd(params, phy);
3839 
3840 		bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
3841 	}
3842 
3843 	/* Enable Autoneg: only on the main lane */
3844 	bnx2x_warpcore_restart_AN_KR(phy, params);
3845 }
3846 
bnx2x_warpcore_set_10G_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3847 static void bnx2x_warpcore_set_10G_KR(struct bnx2x_phy *phy,
3848 				      struct link_params *params,
3849 				      struct link_vars *vars)
3850 {
3851 	struct bnx2x *bp = params->bp;
3852 	u16 val16, i, lane;
3853 	static struct bnx2x_reg_set reg_set[] = {
3854 		/* Disable Autoneg */
3855 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
3856 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL,
3857 			0x3f00},
3858 		{MDIO_AN_DEVAD, MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, 0},
3859 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0},
3860 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL3_UP1, 0x1},
3861 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL5_MISC7, 0xa},
3862 		/* Leave cl72 training enable, needed for KR */
3863 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2}
3864 	};
3865 
3866 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3867 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
3868 				 reg_set[i].val);
3869 
3870 	lane = bnx2x_get_warpcore_lane(phy, params);
3871 	/* Global registers */
3872 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3873 			  MDIO_AER_BLOCK_AER_REG, 0);
3874 	/* Disable CL36 PCS Tx */
3875 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3876 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
3877 	val16 &= ~(0x0011 << lane);
3878 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3879 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
3880 
3881 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3882 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
3883 	val16 |= (0x0303 << (lane << 1));
3884 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3885 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
3886 	/* Restore AER */
3887 	bnx2x_set_aer_mmd(params, phy);
3888 	/* Set speed via PMA/PMD register */
3889 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3890 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040);
3891 
3892 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3893 			 MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0xB);
3894 
3895 	/* Enable encoded forced speed */
3896 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3897 			 MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x30);
3898 
3899 	/* Turn TX scramble payload only the 64/66 scrambler */
3900 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3901 			 MDIO_WC_REG_TX66_CONTROL, 0x9);
3902 
3903 	/* Turn RX scramble payload only the 64/66 scrambler */
3904 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3905 				 MDIO_WC_REG_RX66_CONTROL, 0xF9);
3906 
3907 	/* Set and clear loopback to cause a reset to 64/66 decoder */
3908 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3909 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x4000);
3910 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3911 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0);
3912 
3913 }
3914 
bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy * phy,struct link_params * params,u8 is_xfi)3915 static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy,
3916 				       struct link_params *params,
3917 				       u8 is_xfi)
3918 {
3919 	struct bnx2x *bp = params->bp;
3920 	u16 misc1_val, tap_val, tx_driver_val, lane, val;
3921 	u32 cfg_tap_val, tx_drv_brdct, tx_equal;
3922 
3923 	/* Hold rxSeqStart */
3924 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3925 				 MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x8000);
3926 
3927 	/* Hold tx_fifo_reset */
3928 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3929 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, 0x1);
3930 
3931 	/* Disable CL73 AN */
3932 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0);
3933 
3934 	/* Disable 100FX Enable and Auto-Detect */
3935 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3936 				  MDIO_WC_REG_FX100_CTRL1, 0xFFFA);
3937 
3938 	/* Disable 100FX Idle detect */
3939 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3940 				 MDIO_WC_REG_FX100_CTRL3, 0x0080);
3941 
3942 	/* Set Block address to Remote PHY & Clear forced_speed[5] */
3943 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3944 				  MDIO_WC_REG_DIGITAL4_MISC3, 0xFF7F);
3945 
3946 	/* Turn off auto-detect & fiber mode */
3947 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
3948 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
3949 				  0xFFEE);
3950 
3951 	/* Set filter_force_link, disable_false_link and parallel_detect */
3952 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3953 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &val);
3954 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3955 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
3956 			 ((val | 0x0006) & 0xFFFE));
3957 
3958 	/* Set XFI / SFI */
3959 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3960 			MDIO_WC_REG_SERDESDIGITAL_MISC1, &misc1_val);
3961 
3962 	misc1_val &= ~(0x1f);
3963 
3964 	if (is_xfi) {
3965 		misc1_val |= 0x5;
3966 		tap_val = WC_TX_FIR(0x08, 0x37, 0x00);
3967 		tx_driver_val = WC_TX_DRIVER(0x00, 0x02, 0x03);
3968 	} else {
3969 		cfg_tap_val = REG_RD(bp, params->shmem_base +
3970 				     offsetof(struct shmem_region, dev_info.
3971 					      port_hw_config[params->port].
3972 					      sfi_tap_values));
3973 
3974 		tx_equal = cfg_tap_val & PORT_HW_CFG_TX_EQUALIZATION_MASK;
3975 
3976 		tx_drv_brdct = (cfg_tap_val &
3977 				PORT_HW_CFG_TX_DRV_BROADCAST_MASK) >>
3978 			       PORT_HW_CFG_TX_DRV_BROADCAST_SHIFT;
3979 
3980 		misc1_val |= 0x9;
3981 
3982 		/* TAP values are controlled by nvram, if value there isn't 0 */
3983 		if (tx_equal)
3984 			tap_val = (u16)tx_equal;
3985 		else
3986 			tap_val = WC_TX_FIR(0x0f, 0x2b, 0x02);
3987 
3988 		if (tx_drv_brdct)
3989 			tx_driver_val = WC_TX_DRIVER(0x03, (u16)tx_drv_brdct,
3990 						     0x06);
3991 		else
3992 			tx_driver_val = WC_TX_DRIVER(0x03, 0x02, 0x06);
3993 	}
3994 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3995 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val);
3996 
3997 	/* Set Transmit PMD settings */
3998 	lane = bnx2x_get_warpcore_lane(phy, params);
3999 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4000 			 MDIO_WC_REG_TX_FIR_TAP,
4001 			 tap_val | MDIO_WC_REG_TX_FIR_TAP_ENABLE);
4002 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4003 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4004 			 tx_driver_val);
4005 
4006 	/* Enable fiber mode, enable and invert sig_det */
4007 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4008 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0xd);
4009 
4010 	/* Set Block address to Remote PHY & Set forced_speed[5], 40bit mode */
4011 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4012 				 MDIO_WC_REG_DIGITAL4_MISC3, 0x8080);
4013 
4014 	bnx2x_warpcore_set_lpi_passthrough(phy, params);
4015 
4016 	/* 10G XFI Full Duplex */
4017 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4018 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x100);
4019 
4020 	/* Release tx_fifo_reset */
4021 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4022 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4023 				  0xFFFE);
4024 	/* Release rxSeqStart */
4025 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4026 				  MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x7FFF);
4027 }
4028 
bnx2x_warpcore_set_20G_force_KR2(struct bnx2x_phy * phy,struct link_params * params)4029 static void bnx2x_warpcore_set_20G_force_KR2(struct bnx2x_phy *phy,
4030 					     struct link_params *params)
4031 {
4032 	u16 val;
4033 	struct bnx2x *bp = params->bp;
4034 	/* Set global registers, so set AER lane to 0 */
4035 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4036 			  MDIO_AER_BLOCK_AER_REG, 0);
4037 
4038 	/* Disable sequencer */
4039 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4040 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, ~(1<<13));
4041 
4042 	bnx2x_set_aer_mmd(params, phy);
4043 
4044 	bnx2x_cl45_read_and_write(bp, phy, MDIO_PMA_DEVAD,
4045 				  MDIO_WC_REG_PMD_KR_CONTROL, ~(1<<1));
4046 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
4047 			 MDIO_AN_REG_CTRL, 0);
4048 	/* Turn off CL73 */
4049 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4050 			MDIO_WC_REG_CL73_USERB0_CTRL, &val);
4051 	val &= ~(1<<5);
4052 	val |= (1<<6);
4053 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4054 			 MDIO_WC_REG_CL73_USERB0_CTRL, val);
4055 
4056 	/* Set 20G KR2 force speed */
4057 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4058 				 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x1f);
4059 
4060 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4061 				 MDIO_WC_REG_DIGITAL4_MISC3, (1<<7));
4062 
4063 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4064 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &val);
4065 	val &= ~(3<<14);
4066 	val |= (1<<15);
4067 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4068 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, val);
4069 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4070 			 MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0x835A);
4071 
4072 	/* Enable sequencer (over lane 0) */
4073 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4074 			  MDIO_AER_BLOCK_AER_REG, 0);
4075 
4076 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4077 				 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, (1<<13));
4078 
4079 	bnx2x_set_aer_mmd(params, phy);
4080 }
4081 
bnx2x_warpcore_set_20G_DXGXS(struct bnx2x * bp,struct bnx2x_phy * phy,u16 lane)4082 static void bnx2x_warpcore_set_20G_DXGXS(struct bnx2x *bp,
4083 					 struct bnx2x_phy *phy,
4084 					 u16 lane)
4085 {
4086 	/* Rx0 anaRxControl1G */
4087 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4088 			 MDIO_WC_REG_RX0_ANARXCONTROL1G, 0x90);
4089 
4090 	/* Rx2 anaRxControl1G */
4091 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4092 			 MDIO_WC_REG_RX2_ANARXCONTROL1G, 0x90);
4093 
4094 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4095 			 MDIO_WC_REG_RX66_SCW0, 0xE070);
4096 
4097 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4098 			 MDIO_WC_REG_RX66_SCW1, 0xC0D0);
4099 
4100 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4101 			 MDIO_WC_REG_RX66_SCW2, 0xA0B0);
4102 
4103 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4104 			 MDIO_WC_REG_RX66_SCW3, 0x8090);
4105 
4106 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4107 			 MDIO_WC_REG_RX66_SCW0_MASK, 0xF0F0);
4108 
4109 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4110 			 MDIO_WC_REG_RX66_SCW1_MASK, 0xF0F0);
4111 
4112 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4113 			 MDIO_WC_REG_RX66_SCW2_MASK, 0xF0F0);
4114 
4115 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4116 			 MDIO_WC_REG_RX66_SCW3_MASK, 0xF0F0);
4117 
4118 	/* Serdes Digital Misc1 */
4119 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4120 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6008);
4121 
4122 	/* Serdes Digital4 Misc3 */
4123 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4124 			 MDIO_WC_REG_DIGITAL4_MISC3, 0x8088);
4125 
4126 	/* Set Transmit PMD settings */
4127 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4128 			 MDIO_WC_REG_TX_FIR_TAP,
4129 			 (WC_TX_FIR(0x12, 0x2d, 0x00) |
4130 			  MDIO_WC_REG_TX_FIR_TAP_ENABLE));
4131 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4132 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4133 			 WC_TX_DRIVER(0x02, 0x02, 0x02));
4134 }
4135 
bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy * phy,struct link_params * params,u8 fiber_mode,u8 always_autoneg)4136 static void bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy *phy,
4137 					   struct link_params *params,
4138 					   u8 fiber_mode,
4139 					   u8 always_autoneg)
4140 {
4141 	struct bnx2x *bp = params->bp;
4142 	u16 val16, digctrl_kx1, digctrl_kx2;
4143 
4144 	/* Clear XFI clock comp in non-10G single lane mode. */
4145 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4146 				  MDIO_WC_REG_RX66_CONTROL, ~(3<<13));
4147 
4148 	bnx2x_warpcore_set_lpi_passthrough(phy, params);
4149 
4150 	if (always_autoneg || phy->req_line_speed == SPEED_AUTO_NEG) {
4151 		/* SGMII Autoneg */
4152 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4153 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4154 					 0x1000);
4155 		DP(NETIF_MSG_LINK, "set SGMII AUTONEG\n");
4156 	} else {
4157 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4158 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4159 		val16 &= 0xcebf;
4160 		switch (phy->req_line_speed) {
4161 		case SPEED_10:
4162 			break;
4163 		case SPEED_100:
4164 			val16 |= 0x2000;
4165 			break;
4166 		case SPEED_1000:
4167 			val16 |= 0x0040;
4168 			break;
4169 		default:
4170 			DP(NETIF_MSG_LINK,
4171 			   "Speed not supported: 0x%x\n", phy->req_line_speed);
4172 			return;
4173 		}
4174 
4175 		if (phy->req_duplex == DUPLEX_FULL)
4176 			val16 |= 0x0100;
4177 
4178 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4179 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16);
4180 
4181 		DP(NETIF_MSG_LINK, "set SGMII force speed %d\n",
4182 			       phy->req_line_speed);
4183 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4184 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4185 		DP(NETIF_MSG_LINK, "  (readback) %x\n", val16);
4186 	}
4187 
4188 	/* SGMII Slave mode and disable signal detect */
4189 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4190 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &digctrl_kx1);
4191 	if (fiber_mode)
4192 		digctrl_kx1 = 1;
4193 	else
4194 		digctrl_kx1 &= 0xff4a;
4195 
4196 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4197 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4198 			digctrl_kx1);
4199 
4200 	/* Turn off parallel detect */
4201 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4202 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &digctrl_kx2);
4203 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4204 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4205 			(digctrl_kx2 & ~(1<<2)));
4206 
4207 	/* Re-enable parallel detect */
4208 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4209 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4210 			(digctrl_kx2 | (1<<2)));
4211 
4212 	/* Enable autodet */
4213 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4214 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4215 			(digctrl_kx1 | 0x10));
4216 }
4217 
bnx2x_warpcore_reset_lane(struct bnx2x * bp,struct bnx2x_phy * phy,u8 reset)4218 static void bnx2x_warpcore_reset_lane(struct bnx2x *bp,
4219 				      struct bnx2x_phy *phy,
4220 				      u8 reset)
4221 {
4222 	u16 val;
4223 	/* Take lane out of reset after configuration is finished */
4224 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4225 			MDIO_WC_REG_DIGITAL5_MISC6, &val);
4226 	if (reset)
4227 		val |= 0xC000;
4228 	else
4229 		val &= 0x3FFF;
4230 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4231 			 MDIO_WC_REG_DIGITAL5_MISC6, val);
4232 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4233 			 MDIO_WC_REG_DIGITAL5_MISC6, &val);
4234 }
4235 /* Clear SFI/XFI link settings registers */
bnx2x_warpcore_clear_regs(struct bnx2x_phy * phy,struct link_params * params,u16 lane)4236 static void bnx2x_warpcore_clear_regs(struct bnx2x_phy *phy,
4237 				      struct link_params *params,
4238 				      u16 lane)
4239 {
4240 	struct bnx2x *bp = params->bp;
4241 	u16 i;
4242 	static struct bnx2x_reg_set wc_regs[] = {
4243 		{MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0},
4244 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL1, 0x014a},
4245 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL3, 0x0800},
4246 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL4_MISC3, 0x8008},
4247 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4248 			0x0195},
4249 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4250 			0x0007},
4251 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4252 			0x0002},
4253 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6000},
4254 		{MDIO_WC_DEVAD, MDIO_WC_REG_TX_FIR_TAP, 0x0000},
4255 		{MDIO_WC_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040},
4256 		{MDIO_WC_DEVAD, MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0x0140}
4257 	};
4258 	/* Set XFI clock comp as default. */
4259 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4260 				 MDIO_WC_REG_RX66_CONTROL, (3<<13));
4261 
4262 	for (i = 0; i < ARRAY_SIZE(wc_regs); i++)
4263 		bnx2x_cl45_write(bp, phy, wc_regs[i].devad, wc_regs[i].reg,
4264 				 wc_regs[i].val);
4265 
4266 	lane = bnx2x_get_warpcore_lane(phy, params);
4267 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4268 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane, 0x0990);
4269 
4270 }
4271 
bnx2x_get_mod_abs_int_cfg(struct bnx2x * bp,u32 chip_id,u32 shmem_base,u8 port,u8 * gpio_num,u8 * gpio_port)4272 static int bnx2x_get_mod_abs_int_cfg(struct bnx2x *bp,
4273 						u32 chip_id,
4274 						u32 shmem_base, u8 port,
4275 						u8 *gpio_num, u8 *gpio_port)
4276 {
4277 	u32 cfg_pin;
4278 	*gpio_num = 0;
4279 	*gpio_port = 0;
4280 	if (CHIP_IS_E3(bp)) {
4281 		cfg_pin = (REG_RD(bp, shmem_base +
4282 				offsetof(struct shmem_region,
4283 				dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4284 				PORT_HW_CFG_E3_MOD_ABS_MASK) >>
4285 				PORT_HW_CFG_E3_MOD_ABS_SHIFT;
4286 
4287 		/* Should not happen. This function called upon interrupt
4288 		 * triggered by GPIO ( since EPIO can only generate interrupts
4289 		 * to MCP).
4290 		 * So if this function was called and none of the GPIOs was set,
4291 		 * it means the shit hit the fan.
4292 		 */
4293 		if ((cfg_pin < PIN_CFG_GPIO0_P0) ||
4294 		    (cfg_pin > PIN_CFG_GPIO3_P1)) {
4295 			DP(NETIF_MSG_LINK,
4296 			   "No cfg pin %x for module detect indication\n",
4297 			   cfg_pin);
4298 			return -EINVAL;
4299 		}
4300 
4301 		*gpio_num = (cfg_pin - PIN_CFG_GPIO0_P0) & 0x3;
4302 		*gpio_port = (cfg_pin - PIN_CFG_GPIO0_P0) >> 2;
4303 	} else {
4304 		*gpio_num = MISC_REGISTERS_GPIO_3;
4305 		*gpio_port = port;
4306 	}
4307 
4308 	return 0;
4309 }
4310 
bnx2x_is_sfp_module_plugged(struct bnx2x_phy * phy,struct link_params * params)4311 static int bnx2x_is_sfp_module_plugged(struct bnx2x_phy *phy,
4312 				       struct link_params *params)
4313 {
4314 	struct bnx2x *bp = params->bp;
4315 	u8 gpio_num, gpio_port;
4316 	u32 gpio_val;
4317 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id,
4318 				      params->shmem_base, params->port,
4319 				      &gpio_num, &gpio_port) != 0)
4320 		return 0;
4321 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
4322 
4323 	/* Call the handling function in case module is detected */
4324 	if (gpio_val == 0)
4325 		return 1;
4326 	else
4327 		return 0;
4328 }
bnx2x_warpcore_get_sigdet(struct bnx2x_phy * phy,struct link_params * params)4329 static int bnx2x_warpcore_get_sigdet(struct bnx2x_phy *phy,
4330 				     struct link_params *params)
4331 {
4332 	u16 gp2_status_reg0, lane;
4333 	struct bnx2x *bp = params->bp;
4334 
4335 	lane = bnx2x_get_warpcore_lane(phy, params);
4336 
4337 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_0,
4338 				 &gp2_status_reg0);
4339 
4340 	return (gp2_status_reg0 >> (8+lane)) & 0x1;
4341 }
4342 
bnx2x_warpcore_config_runtime(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4343 static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
4344 					  struct link_params *params,
4345 					  struct link_vars *vars)
4346 {
4347 	struct bnx2x *bp = params->bp;
4348 	u32 serdes_net_if;
4349 	u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
4350 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4351 
4352 	vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
4353 
4354 	if (!vars->turn_to_run_wc_rt)
4355 		return;
4356 
4357 	/* Return if there is no link partner */
4358 	if (!(bnx2x_warpcore_get_sigdet(phy, params))) {
4359 		DP(NETIF_MSG_LINK, "bnx2x_warpcore_get_sigdet false\n");
4360 		return;
4361 	}
4362 
4363 	if (vars->rx_tx_asic_rst) {
4364 		serdes_net_if = (REG_RD(bp, params->shmem_base +
4365 				offsetof(struct shmem_region, dev_info.
4366 				port_hw_config[params->port].default_cfg)) &
4367 				PORT_HW_CFG_NET_SERDES_IF_MASK);
4368 
4369 		switch (serdes_net_if) {
4370 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4371 			/* Do we get link yet? */
4372 			bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, 0x81d1,
4373 					&gp_status1);
4374 			lnkup = (gp_status1 >> (8+lane)) & 0x1;/* 1G */
4375 				/*10G KR*/
4376 			lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
4377 
4378 			DP(NETIF_MSG_LINK,
4379 				"gp_status1 0x%x\n", gp_status1);
4380 
4381 			if (lnkup_kr || lnkup) {
4382 					vars->rx_tx_asic_rst = 0;
4383 					DP(NETIF_MSG_LINK,
4384 					"link up, rx_tx_asic_rst 0x%x\n",
4385 					vars->rx_tx_asic_rst);
4386 			} else {
4387 				/* Reset the lane to see if link comes up.*/
4388 				bnx2x_warpcore_reset_lane(bp, phy, 1);
4389 				bnx2x_warpcore_reset_lane(bp, phy, 0);
4390 
4391 				/* Restart Autoneg */
4392 				bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
4393 					MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
4394 
4395 				vars->rx_tx_asic_rst--;
4396 				DP(NETIF_MSG_LINK, "0x%x retry left\n",
4397 				vars->rx_tx_asic_rst);
4398 			}
4399 			break;
4400 
4401 		default:
4402 			break;
4403 		}
4404 
4405 	} /*params->rx_tx_asic_rst*/
4406 
4407 }
bnx2x_warpcore_config_sfi(struct bnx2x_phy * phy,struct link_params * params)4408 static void bnx2x_warpcore_config_sfi(struct bnx2x_phy *phy,
4409 				      struct link_params *params)
4410 {
4411 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4412 	struct bnx2x *bp = params->bp;
4413 	bnx2x_warpcore_clear_regs(phy, params, lane);
4414 	if ((params->req_line_speed[LINK_CONFIG_IDX(INT_PHY)] ==
4415 	     SPEED_10000) &&
4416 	    (phy->media_type != ETH_PHY_SFP_1G_FIBER)) {
4417 		DP(NETIF_MSG_LINK, "Setting 10G SFI\n");
4418 		bnx2x_warpcore_set_10G_XFI(phy, params, 0);
4419 	} else {
4420 		DP(NETIF_MSG_LINK, "Setting 1G Fiber\n");
4421 		bnx2x_warpcore_set_sgmii_speed(phy, params, 1, 0);
4422 	}
4423 }
4424 
bnx2x_sfp_e3_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)4425 static void bnx2x_sfp_e3_set_transmitter(struct link_params *params,
4426 					 struct bnx2x_phy *phy,
4427 					 u8 tx_en)
4428 {
4429 	struct bnx2x *bp = params->bp;
4430 	u32 cfg_pin;
4431 	u8 port = params->port;
4432 
4433 	cfg_pin = REG_RD(bp, params->shmem_base +
4434 			 offsetof(struct shmem_region,
4435 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4436 		PORT_HW_CFG_E3_TX_LASER_MASK;
4437 	/* Set the !tx_en since this pin is DISABLE_TX_LASER */
4438 	DP(NETIF_MSG_LINK, "Setting WC TX to %d\n", tx_en);
4439 
4440 	/* For 20G, the expected pin to be used is 3 pins after the current */
4441 	bnx2x_set_cfg_pin(bp, cfg_pin, tx_en ^ 1);
4442 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)
4443 		bnx2x_set_cfg_pin(bp, cfg_pin + 3, tx_en ^ 1);
4444 }
4445 
bnx2x_warpcore_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4446 static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
4447 				       struct link_params *params,
4448 				       struct link_vars *vars)
4449 {
4450 	struct bnx2x *bp = params->bp;
4451 	u32 serdes_net_if;
4452 	u8 fiber_mode;
4453 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4454 	serdes_net_if = (REG_RD(bp, params->shmem_base +
4455 			 offsetof(struct shmem_region, dev_info.
4456 				  port_hw_config[params->port].default_cfg)) &
4457 			 PORT_HW_CFG_NET_SERDES_IF_MASK);
4458 	DP(NETIF_MSG_LINK, "Begin Warpcore init, link_speed %d, "
4459 			   "serdes_net_if = 0x%x\n",
4460 		       vars->line_speed, serdes_net_if);
4461 	bnx2x_set_aer_mmd(params, phy);
4462 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4463 	vars->phy_flags |= PHY_XGXS_FLAG;
4464 	if ((serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_SGMII) ||
4465 	    (phy->req_line_speed &&
4466 	     ((phy->req_line_speed == SPEED_100) ||
4467 	      (phy->req_line_speed == SPEED_10)))) {
4468 		vars->phy_flags |= PHY_SGMII_FLAG;
4469 		DP(NETIF_MSG_LINK, "Setting SGMII mode\n");
4470 		bnx2x_warpcore_clear_regs(phy, params, lane);
4471 		bnx2x_warpcore_set_sgmii_speed(phy, params, 0, 1);
4472 	} else {
4473 		switch (serdes_net_if) {
4474 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4475 			/* Enable KR Auto Neg */
4476 			if (params->loopback_mode != LOOPBACK_EXT)
4477 				bnx2x_warpcore_enable_AN_KR(phy, params, vars);
4478 			else {
4479 				DP(NETIF_MSG_LINK, "Setting KR 10G-Force\n");
4480 				bnx2x_warpcore_set_10G_KR(phy, params, vars);
4481 			}
4482 			break;
4483 
4484 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
4485 			bnx2x_warpcore_clear_regs(phy, params, lane);
4486 			if (vars->line_speed == SPEED_10000) {
4487 				DP(NETIF_MSG_LINK, "Setting 10G XFI\n");
4488 				bnx2x_warpcore_set_10G_XFI(phy, params, 1);
4489 			} else {
4490 				if (SINGLE_MEDIA_DIRECT(params)) {
4491 					DP(NETIF_MSG_LINK, "1G Fiber\n");
4492 					fiber_mode = 1;
4493 				} else {
4494 					DP(NETIF_MSG_LINK, "10/100/1G SGMII\n");
4495 					fiber_mode = 0;
4496 				}
4497 				bnx2x_warpcore_set_sgmii_speed(phy,
4498 								params,
4499 								fiber_mode,
4500 								0);
4501 			}
4502 
4503 			break;
4504 
4505 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
4506 			/* Issue Module detection if module is plugged, or
4507 			 * enabled transmitter to avoid current leakage in case
4508 			 * no module is connected
4509 			 */
4510 			if (bnx2x_is_sfp_module_plugged(phy, params))
4511 				bnx2x_sfp_module_detection(phy, params);
4512 			else
4513 				bnx2x_sfp_e3_set_transmitter(params, phy, 1);
4514 
4515 			bnx2x_warpcore_config_sfi(phy, params);
4516 			break;
4517 
4518 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
4519 			if (vars->line_speed != SPEED_20000) {
4520 				DP(NETIF_MSG_LINK, "Speed not supported yet\n");
4521 				return;
4522 			}
4523 			DP(NETIF_MSG_LINK, "Setting 20G DXGXS\n");
4524 			bnx2x_warpcore_set_20G_DXGXS(bp, phy, lane);
4525 			/* Issue Module detection */
4526 
4527 			bnx2x_sfp_module_detection(phy, params);
4528 			break;
4529 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
4530 			if (!params->loopback_mode) {
4531 				bnx2x_warpcore_enable_AN_KR(phy, params, vars);
4532 			} else {
4533 				DP(NETIF_MSG_LINK, "Setting KR 20G-Force\n");
4534 				bnx2x_warpcore_set_20G_force_KR2(phy, params);
4535 			}
4536 			break;
4537 		default:
4538 			DP(NETIF_MSG_LINK,
4539 			   "Unsupported Serdes Net Interface 0x%x\n",
4540 			   serdes_net_if);
4541 			return;
4542 		}
4543 	}
4544 
4545 	/* Take lane out of reset after configuration is finished */
4546 	bnx2x_warpcore_reset_lane(bp, phy, 0);
4547 	DP(NETIF_MSG_LINK, "Exit config init\n");
4548 }
4549 
bnx2x_warpcore_link_reset(struct bnx2x_phy * phy,struct link_params * params)4550 static void bnx2x_warpcore_link_reset(struct bnx2x_phy *phy,
4551 				      struct link_params *params)
4552 {
4553 	struct bnx2x *bp = params->bp;
4554 	u16 val16, lane;
4555 	bnx2x_sfp_e3_set_transmitter(params, phy, 0);
4556 	bnx2x_set_mdio_emac_per_phy(bp, params);
4557 	bnx2x_set_aer_mmd(params, phy);
4558 	/* Global register */
4559 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4560 
4561 	/* Clear loopback settings (if any) */
4562 	/* 10G & 20G */
4563 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4564 				  MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0xBFFF);
4565 
4566 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4567 				  MDIO_WC_REG_IEEE0BLK_MIICNTL, 0xfffe);
4568 
4569 	/* Update those 1-copy registers */
4570 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4571 			  MDIO_AER_BLOCK_AER_REG, 0);
4572 	/* Enable 1G MDIO (1-copy) */
4573 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4574 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4575 				  ~0x10);
4576 
4577 	bnx2x_cl45_read_and_write(bp, phy, MDIO_WC_DEVAD,
4578 				  MDIO_WC_REG_XGXSBLK1_LANECTRL2, 0xff00);
4579 	lane = bnx2x_get_warpcore_lane(phy, params);
4580 	/* Disable CL36 PCS Tx */
4581 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4582 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
4583 	val16 |= (0x11 << lane);
4584 	if (phy->flags & FLAGS_WC_DUAL_MODE)
4585 		val16 |= (0x22 << lane);
4586 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4587 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
4588 
4589 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4590 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
4591 	val16 &= ~(0x0303 << (lane << 1));
4592 	val16 |= (0x0101 << (lane << 1));
4593 	if (phy->flags & FLAGS_WC_DUAL_MODE) {
4594 		val16 &= ~(0x0c0c << (lane << 1));
4595 		val16 |= (0x0404 << (lane << 1));
4596 	}
4597 
4598 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4599 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
4600 	/* Restore AER */
4601 	bnx2x_set_aer_mmd(params, phy);
4602 
4603 }
4604 
bnx2x_set_warpcore_loopback(struct bnx2x_phy * phy,struct link_params * params)4605 static void bnx2x_set_warpcore_loopback(struct bnx2x_phy *phy,
4606 					struct link_params *params)
4607 {
4608 	struct bnx2x *bp = params->bp;
4609 	u16 val16;
4610 	u32 lane;
4611 	DP(NETIF_MSG_LINK, "Setting Warpcore loopback type %x, speed %d\n",
4612 		       params->loopback_mode, phy->req_line_speed);
4613 
4614 	if (phy->req_line_speed < SPEED_10000 ||
4615 	    phy->supported & SUPPORTED_20000baseKR2_Full) {
4616 		/* 10/100/1000/20G-KR2 */
4617 
4618 		/* Update those 1-copy registers */
4619 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4620 				  MDIO_AER_BLOCK_AER_REG, 0);
4621 		/* Enable 1G MDIO (1-copy) */
4622 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4623 					 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4624 					 0x10);
4625 		/* Set 1G loopback based on lane (1-copy) */
4626 		lane = bnx2x_get_warpcore_lane(phy, params);
4627 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4628 				MDIO_WC_REG_XGXSBLK1_LANECTRL2, &val16);
4629 		val16 |= (1<<lane);
4630 		if (phy->flags & FLAGS_WC_DUAL_MODE)
4631 			val16 |= (2<<lane);
4632 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4633 				 MDIO_WC_REG_XGXSBLK1_LANECTRL2,
4634 				 val16);
4635 
4636 		/* Switch back to 4-copy registers */
4637 		bnx2x_set_aer_mmd(params, phy);
4638 	} else {
4639 		/* 10G / 20G-DXGXS */
4640 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4641 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4642 					 0x4000);
4643 		bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
4644 					 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1);
4645 	}
4646 }
4647 
4648 
4649 
bnx2x_sync_link(struct link_params * params,struct link_vars * vars)4650 static void bnx2x_sync_link(struct link_params *params,
4651 			     struct link_vars *vars)
4652 {
4653 	struct bnx2x *bp = params->bp;
4654 	u8 link_10g_plus;
4655 	if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4656 		vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
4657 	vars->link_up = (vars->link_status & LINK_STATUS_LINK_UP);
4658 	if (vars->link_up) {
4659 		DP(NETIF_MSG_LINK, "phy link up\n");
4660 
4661 		vars->phy_link_up = 1;
4662 		vars->duplex = DUPLEX_FULL;
4663 		switch (vars->link_status &
4664 			LINK_STATUS_SPEED_AND_DUPLEX_MASK) {
4665 		case LINK_10THD:
4666 			vars->duplex = DUPLEX_HALF;
4667 			/* Fall thru */
4668 		case LINK_10TFD:
4669 			vars->line_speed = SPEED_10;
4670 			break;
4671 
4672 		case LINK_100TXHD:
4673 			vars->duplex = DUPLEX_HALF;
4674 			/* Fall thru */
4675 		case LINK_100T4:
4676 		case LINK_100TXFD:
4677 			vars->line_speed = SPEED_100;
4678 			break;
4679 
4680 		case LINK_1000THD:
4681 			vars->duplex = DUPLEX_HALF;
4682 			/* Fall thru */
4683 		case LINK_1000TFD:
4684 			vars->line_speed = SPEED_1000;
4685 			break;
4686 
4687 		case LINK_2500THD:
4688 			vars->duplex = DUPLEX_HALF;
4689 			/* Fall thru */
4690 		case LINK_2500TFD:
4691 			vars->line_speed = SPEED_2500;
4692 			break;
4693 
4694 		case LINK_10GTFD:
4695 			vars->line_speed = SPEED_10000;
4696 			break;
4697 		case LINK_20GTFD:
4698 			vars->line_speed = SPEED_20000;
4699 			break;
4700 		default:
4701 			break;
4702 		}
4703 		vars->flow_ctrl = 0;
4704 		if (vars->link_status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED)
4705 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_TX;
4706 
4707 		if (vars->link_status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED)
4708 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_RX;
4709 
4710 		if (!vars->flow_ctrl)
4711 			vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4712 
4713 		if (vars->line_speed &&
4714 		    ((vars->line_speed == SPEED_10) ||
4715 		     (vars->line_speed == SPEED_100))) {
4716 			vars->phy_flags |= PHY_SGMII_FLAG;
4717 		} else {
4718 			vars->phy_flags &= ~PHY_SGMII_FLAG;
4719 		}
4720 		if (vars->line_speed &&
4721 		    USES_WARPCORE(bp) &&
4722 		    (vars->line_speed == SPEED_1000))
4723 			vars->phy_flags |= PHY_SGMII_FLAG;
4724 		/* Anything 10 and over uses the bmac */
4725 		link_10g_plus = (vars->line_speed >= SPEED_10000);
4726 
4727 		if (link_10g_plus) {
4728 			if (USES_WARPCORE(bp))
4729 				vars->mac_type = MAC_TYPE_XMAC;
4730 			else
4731 				vars->mac_type = MAC_TYPE_BMAC;
4732 		} else {
4733 			if (USES_WARPCORE(bp))
4734 				vars->mac_type = MAC_TYPE_UMAC;
4735 			else
4736 				vars->mac_type = MAC_TYPE_EMAC;
4737 		}
4738 	} else { /* Link down */
4739 		DP(NETIF_MSG_LINK, "phy link down\n");
4740 
4741 		vars->phy_link_up = 0;
4742 
4743 		vars->line_speed = 0;
4744 		vars->duplex = DUPLEX_FULL;
4745 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4746 
4747 		/* Indicate no mac active */
4748 		vars->mac_type = MAC_TYPE_NONE;
4749 		if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4750 			vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
4751 		if (vars->link_status & LINK_STATUS_SFP_TX_FAULT)
4752 			vars->phy_flags |= PHY_SFP_TX_FAULT_FLAG;
4753 	}
4754 }
4755 
bnx2x_link_status_update(struct link_params * params,struct link_vars * vars)4756 void bnx2x_link_status_update(struct link_params *params,
4757 			      struct link_vars *vars)
4758 {
4759 	struct bnx2x *bp = params->bp;
4760 	u8 port = params->port;
4761 	u32 sync_offset, media_types;
4762 	/* Update PHY configuration */
4763 	set_phy_vars(params, vars);
4764 
4765 	vars->link_status = REG_RD(bp, params->shmem_base +
4766 				   offsetof(struct shmem_region,
4767 					    port_mb[port].link_status));
4768 
4769 	/* Force link UP in non LOOPBACK_EXT loopback mode(s) */
4770 	if (params->loopback_mode != LOOPBACK_NONE &&
4771 	    params->loopback_mode != LOOPBACK_EXT)
4772 		vars->link_status |= LINK_STATUS_LINK_UP;
4773 
4774 	if (bnx2x_eee_has_cap(params))
4775 		vars->eee_status = REG_RD(bp, params->shmem2_base +
4776 					  offsetof(struct shmem2_region,
4777 						   eee_status[params->port]));
4778 
4779 	vars->phy_flags = PHY_XGXS_FLAG;
4780 	bnx2x_sync_link(params, vars);
4781 	/* Sync media type */
4782 	sync_offset = params->shmem_base +
4783 			offsetof(struct shmem_region,
4784 				 dev_info.port_hw_config[port].media_type);
4785 	media_types = REG_RD(bp, sync_offset);
4786 
4787 	params->phy[INT_PHY].media_type =
4788 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) >>
4789 		PORT_HW_CFG_MEDIA_TYPE_PHY0_SHIFT;
4790 	params->phy[EXT_PHY1].media_type =
4791 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY1_MASK) >>
4792 		PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT;
4793 	params->phy[EXT_PHY2].media_type =
4794 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY2_MASK) >>
4795 		PORT_HW_CFG_MEDIA_TYPE_PHY2_SHIFT;
4796 	DP(NETIF_MSG_LINK, "media_types = 0x%x\n", media_types);
4797 
4798 	/* Sync AEU offset */
4799 	sync_offset = params->shmem_base +
4800 			offsetof(struct shmem_region,
4801 				 dev_info.port_hw_config[port].aeu_int_mask);
4802 
4803 	vars->aeu_int_mask = REG_RD(bp, sync_offset);
4804 
4805 	/* Sync PFC status */
4806 	if (vars->link_status & LINK_STATUS_PFC_ENABLED)
4807 		params->feature_config_flags |=
4808 					FEATURE_CONFIG_PFC_ENABLED;
4809 	else
4810 		params->feature_config_flags &=
4811 					~FEATURE_CONFIG_PFC_ENABLED;
4812 
4813 	if (SHMEM2_HAS(bp, link_attr_sync))
4814 		vars->link_attr_sync = SHMEM2_RD(bp,
4815 						 link_attr_sync[params->port]);
4816 
4817 	DP(NETIF_MSG_LINK, "link_status 0x%x  phy_link_up %x int_mask 0x%x\n",
4818 		 vars->link_status, vars->phy_link_up, vars->aeu_int_mask);
4819 	DP(NETIF_MSG_LINK, "line_speed %x  duplex %x  flow_ctrl 0x%x\n",
4820 		 vars->line_speed, vars->duplex, vars->flow_ctrl);
4821 }
4822 
bnx2x_set_master_ln(struct link_params * params,struct bnx2x_phy * phy)4823 static void bnx2x_set_master_ln(struct link_params *params,
4824 				struct bnx2x_phy *phy)
4825 {
4826 	struct bnx2x *bp = params->bp;
4827 	u16 new_master_ln, ser_lane;
4828 	ser_lane = ((params->lane_config &
4829 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
4830 		    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
4831 
4832 	/* Set the master_ln for AN */
4833 	CL22_RD_OVER_CL45(bp, phy,
4834 			  MDIO_REG_BANK_XGXS_BLOCK2,
4835 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4836 			  &new_master_ln);
4837 
4838 	CL22_WR_OVER_CL45(bp, phy,
4839 			  MDIO_REG_BANK_XGXS_BLOCK2 ,
4840 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4841 			  (new_master_ln | ser_lane));
4842 }
4843 
bnx2x_reset_unicore(struct link_params * params,struct bnx2x_phy * phy,u8 set_serdes)4844 static int bnx2x_reset_unicore(struct link_params *params,
4845 			       struct bnx2x_phy *phy,
4846 			       u8 set_serdes)
4847 {
4848 	struct bnx2x *bp = params->bp;
4849 	u16 mii_control;
4850 	u16 i;
4851 	CL22_RD_OVER_CL45(bp, phy,
4852 			  MDIO_REG_BANK_COMBO_IEEE0,
4853 			  MDIO_COMBO_IEEE0_MII_CONTROL, &mii_control);
4854 
4855 	/* Reset the unicore */
4856 	CL22_WR_OVER_CL45(bp, phy,
4857 			  MDIO_REG_BANK_COMBO_IEEE0,
4858 			  MDIO_COMBO_IEEE0_MII_CONTROL,
4859 			  (mii_control |
4860 			   MDIO_COMBO_IEEO_MII_CONTROL_RESET));
4861 	if (set_serdes)
4862 		bnx2x_set_serdes_access(bp, params->port);
4863 
4864 	/* Wait for the reset to self clear */
4865 	for (i = 0; i < MDIO_ACCESS_TIMEOUT; i++) {
4866 		udelay(5);
4867 
4868 		/* The reset erased the previous bank value */
4869 		CL22_RD_OVER_CL45(bp, phy,
4870 				  MDIO_REG_BANK_COMBO_IEEE0,
4871 				  MDIO_COMBO_IEEE0_MII_CONTROL,
4872 				  &mii_control);
4873 
4874 		if (!(mii_control & MDIO_COMBO_IEEO_MII_CONTROL_RESET)) {
4875 			udelay(5);
4876 			return 0;
4877 		}
4878 	}
4879 
4880 	netdev_err(bp->dev,  "Warning: PHY was not initialized,"
4881 			      " Port %d\n",
4882 			 params->port);
4883 	DP(NETIF_MSG_LINK, "BUG! XGXS is still in reset!\n");
4884 	return -EINVAL;
4885 
4886 }
4887 
bnx2x_set_swap_lanes(struct link_params * params,struct bnx2x_phy * phy)4888 static void bnx2x_set_swap_lanes(struct link_params *params,
4889 				 struct bnx2x_phy *phy)
4890 {
4891 	struct bnx2x *bp = params->bp;
4892 	/* Each two bits represents a lane number:
4893 	 * No swap is 0123 => 0x1b no need to enable the swap
4894 	 */
4895 	u16 rx_lane_swap, tx_lane_swap;
4896 
4897 	rx_lane_swap = ((params->lane_config &
4898 			 PORT_HW_CFG_LANE_SWAP_CFG_RX_MASK) >>
4899 			PORT_HW_CFG_LANE_SWAP_CFG_RX_SHIFT);
4900 	tx_lane_swap = ((params->lane_config &
4901 			 PORT_HW_CFG_LANE_SWAP_CFG_TX_MASK) >>
4902 			PORT_HW_CFG_LANE_SWAP_CFG_TX_SHIFT);
4903 
4904 	if (rx_lane_swap != 0x1b) {
4905 		CL22_WR_OVER_CL45(bp, phy,
4906 				  MDIO_REG_BANK_XGXS_BLOCK2,
4907 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP,
4908 				  (rx_lane_swap |
4909 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_ENABLE |
4910 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_FORCE_ENABLE));
4911 	} else {
4912 		CL22_WR_OVER_CL45(bp, phy,
4913 				  MDIO_REG_BANK_XGXS_BLOCK2,
4914 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP, 0);
4915 	}
4916 
4917 	if (tx_lane_swap != 0x1b) {
4918 		CL22_WR_OVER_CL45(bp, phy,
4919 				  MDIO_REG_BANK_XGXS_BLOCK2,
4920 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP,
4921 				  (tx_lane_swap |
4922 				   MDIO_XGXS_BLOCK2_TX_LN_SWAP_ENABLE));
4923 	} else {
4924 		CL22_WR_OVER_CL45(bp, phy,
4925 				  MDIO_REG_BANK_XGXS_BLOCK2,
4926 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP, 0);
4927 	}
4928 }
4929 
bnx2x_set_parallel_detection(struct bnx2x_phy * phy,struct link_params * params)4930 static void bnx2x_set_parallel_detection(struct bnx2x_phy *phy,
4931 					 struct link_params *params)
4932 {
4933 	struct bnx2x *bp = params->bp;
4934 	u16 control2;
4935 	CL22_RD_OVER_CL45(bp, phy,
4936 			  MDIO_REG_BANK_SERDES_DIGITAL,
4937 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4938 			  &control2);
4939 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
4940 		control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4941 	else
4942 		control2 &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4943 	DP(NETIF_MSG_LINK, "phy->speed_cap_mask = 0x%x, control2 = 0x%x\n",
4944 		phy->speed_cap_mask, control2);
4945 	CL22_WR_OVER_CL45(bp, phy,
4946 			  MDIO_REG_BANK_SERDES_DIGITAL,
4947 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4948 			  control2);
4949 
4950 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
4951 	     (phy->speed_cap_mask &
4952 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
4953 		DP(NETIF_MSG_LINK, "XGXS\n");
4954 
4955 		CL22_WR_OVER_CL45(bp, phy,
4956 				 MDIO_REG_BANK_10G_PARALLEL_DETECT,
4957 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK,
4958 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK_CNT);
4959 
4960 		CL22_RD_OVER_CL45(bp, phy,
4961 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
4962 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
4963 				  &control2);
4964 
4965 
4966 		control2 |=
4967 		    MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL_PARDET10G_EN;
4968 
4969 		CL22_WR_OVER_CL45(bp, phy,
4970 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
4971 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
4972 				  control2);
4973 
4974 		/* Disable parallel detection of HiG */
4975 		CL22_WR_OVER_CL45(bp, phy,
4976 				  MDIO_REG_BANK_XGXS_BLOCK2,
4977 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G,
4978 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_CX4_XGXS |
4979 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_HIGIG_XGXS);
4980 	}
4981 }
4982 
bnx2x_set_autoneg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u8 enable_cl73)4983 static void bnx2x_set_autoneg(struct bnx2x_phy *phy,
4984 			      struct link_params *params,
4985 			      struct link_vars *vars,
4986 			      u8 enable_cl73)
4987 {
4988 	struct bnx2x *bp = params->bp;
4989 	u16 reg_val;
4990 
4991 	/* CL37 Autoneg */
4992 	CL22_RD_OVER_CL45(bp, phy,
4993 			  MDIO_REG_BANK_COMBO_IEEE0,
4994 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
4995 
4996 	/* CL37 Autoneg Enabled */
4997 	if (vars->line_speed == SPEED_AUTO_NEG)
4998 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_AN_EN;
4999 	else /* CL37 Autoneg Disabled */
5000 		reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5001 			     MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN);
5002 
5003 	CL22_WR_OVER_CL45(bp, phy,
5004 			  MDIO_REG_BANK_COMBO_IEEE0,
5005 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5006 
5007 	/* Enable/Disable Autodetection */
5008 
5009 	CL22_RD_OVER_CL45(bp, phy,
5010 			  MDIO_REG_BANK_SERDES_DIGITAL,
5011 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, &reg_val);
5012 	reg_val &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_SIGNAL_DETECT_EN |
5013 		    MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT);
5014 	reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE;
5015 	if (vars->line_speed == SPEED_AUTO_NEG)
5016 		reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5017 	else
5018 		reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5019 
5020 	CL22_WR_OVER_CL45(bp, phy,
5021 			  MDIO_REG_BANK_SERDES_DIGITAL,
5022 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, reg_val);
5023 
5024 	/* Enable TetonII and BAM autoneg */
5025 	CL22_RD_OVER_CL45(bp, phy,
5026 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5027 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5028 			  &reg_val);
5029 	if (vars->line_speed == SPEED_AUTO_NEG) {
5030 		/* Enable BAM aneg Mode and TetonII aneg Mode */
5031 		reg_val |= (MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5032 			    MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5033 	} else {
5034 		/* TetonII and BAM Autoneg Disabled */
5035 		reg_val &= ~(MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5036 			     MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5037 	}
5038 	CL22_WR_OVER_CL45(bp, phy,
5039 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5040 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5041 			  reg_val);
5042 
5043 	if (enable_cl73) {
5044 		/* Enable Cl73 FSM status bits */
5045 		CL22_WR_OVER_CL45(bp, phy,
5046 				  MDIO_REG_BANK_CL73_USERB0,
5047 				  MDIO_CL73_USERB0_CL73_UCTRL,
5048 				  0xe);
5049 
5050 		/* Enable BAM Station Manager*/
5051 		CL22_WR_OVER_CL45(bp, phy,
5052 			MDIO_REG_BANK_CL73_USERB0,
5053 			MDIO_CL73_USERB0_CL73_BAM_CTRL1,
5054 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_EN |
5055 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_STATION_MNGR_EN |
5056 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_NP_AFTER_BP_EN);
5057 
5058 		/* Advertise CL73 link speeds */
5059 		CL22_RD_OVER_CL45(bp, phy,
5060 				  MDIO_REG_BANK_CL73_IEEEB1,
5061 				  MDIO_CL73_IEEEB1_AN_ADV2,
5062 				  &reg_val);
5063 		if (phy->speed_cap_mask &
5064 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5065 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4;
5066 		if (phy->speed_cap_mask &
5067 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
5068 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX;
5069 
5070 		CL22_WR_OVER_CL45(bp, phy,
5071 				  MDIO_REG_BANK_CL73_IEEEB1,
5072 				  MDIO_CL73_IEEEB1_AN_ADV2,
5073 				  reg_val);
5074 
5075 		/* CL73 Autoneg Enabled */
5076 		reg_val = MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN;
5077 
5078 	} else /* CL73 Autoneg Disabled */
5079 		reg_val = 0;
5080 
5081 	CL22_WR_OVER_CL45(bp, phy,
5082 			  MDIO_REG_BANK_CL73_IEEEB0,
5083 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL, reg_val);
5084 }
5085 
5086 /* Program SerDes, forced speed */
bnx2x_program_serdes(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5087 static void bnx2x_program_serdes(struct bnx2x_phy *phy,
5088 				 struct link_params *params,
5089 				 struct link_vars *vars)
5090 {
5091 	struct bnx2x *bp = params->bp;
5092 	u16 reg_val;
5093 
5094 	/* Program duplex, disable autoneg and sgmii*/
5095 	CL22_RD_OVER_CL45(bp, phy,
5096 			  MDIO_REG_BANK_COMBO_IEEE0,
5097 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
5098 	reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX |
5099 		     MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5100 		     MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK);
5101 	if (phy->req_duplex == DUPLEX_FULL)
5102 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5103 	CL22_WR_OVER_CL45(bp, phy,
5104 			  MDIO_REG_BANK_COMBO_IEEE0,
5105 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5106 
5107 	/* Program speed
5108 	 *  - needed only if the speed is greater than 1G (2.5G or 10G)
5109 	 */
5110 	CL22_RD_OVER_CL45(bp, phy,
5111 			  MDIO_REG_BANK_SERDES_DIGITAL,
5112 			  MDIO_SERDES_DIGITAL_MISC1, &reg_val);
5113 	/* Clearing the speed value before setting the right speed */
5114 	DP(NETIF_MSG_LINK, "MDIO_REG_BANK_SERDES_DIGITAL = 0x%x\n", reg_val);
5115 
5116 	reg_val &= ~(MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK |
5117 		     MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5118 
5119 	if (!((vars->line_speed == SPEED_1000) ||
5120 	      (vars->line_speed == SPEED_100) ||
5121 	      (vars->line_speed == SPEED_10))) {
5122 
5123 		reg_val |= (MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_156_25M |
5124 			    MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5125 		if (vars->line_speed == SPEED_10000)
5126 			reg_val |=
5127 				MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_10G_CX4;
5128 	}
5129 
5130 	CL22_WR_OVER_CL45(bp, phy,
5131 			  MDIO_REG_BANK_SERDES_DIGITAL,
5132 			  MDIO_SERDES_DIGITAL_MISC1, reg_val);
5133 
5134 }
5135 
bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy * phy,struct link_params * params)5136 static void bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy *phy,
5137 					      struct link_params *params)
5138 {
5139 	struct bnx2x *bp = params->bp;
5140 	u16 val = 0;
5141 
5142 	/* Set extended capabilities */
5143 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G)
5144 		val |= MDIO_OVER_1G_UP1_2_5G;
5145 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5146 		val |= MDIO_OVER_1G_UP1_10G;
5147 	CL22_WR_OVER_CL45(bp, phy,
5148 			  MDIO_REG_BANK_OVER_1G,
5149 			  MDIO_OVER_1G_UP1, val);
5150 
5151 	CL22_WR_OVER_CL45(bp, phy,
5152 			  MDIO_REG_BANK_OVER_1G,
5153 			  MDIO_OVER_1G_UP3, 0x400);
5154 }
5155 
bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy * phy,struct link_params * params,u16 ieee_fc)5156 static void bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy *phy,
5157 					      struct link_params *params,
5158 					      u16 ieee_fc)
5159 {
5160 	struct bnx2x *bp = params->bp;
5161 	u16 val;
5162 	/* For AN, we are always publishing full duplex */
5163 
5164 	CL22_WR_OVER_CL45(bp, phy,
5165 			  MDIO_REG_BANK_COMBO_IEEE0,
5166 			  MDIO_COMBO_IEEE0_AUTO_NEG_ADV, ieee_fc);
5167 	CL22_RD_OVER_CL45(bp, phy,
5168 			  MDIO_REG_BANK_CL73_IEEEB1,
5169 			  MDIO_CL73_IEEEB1_AN_ADV1, &val);
5170 	val &= ~MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH;
5171 	val |= ((ieee_fc<<3) & MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK);
5172 	CL22_WR_OVER_CL45(bp, phy,
5173 			  MDIO_REG_BANK_CL73_IEEEB1,
5174 			  MDIO_CL73_IEEEB1_AN_ADV1, val);
5175 }
5176 
bnx2x_restart_autoneg(struct bnx2x_phy * phy,struct link_params * params,u8 enable_cl73)5177 static void bnx2x_restart_autoneg(struct bnx2x_phy *phy,
5178 				  struct link_params *params,
5179 				  u8 enable_cl73)
5180 {
5181 	struct bnx2x *bp = params->bp;
5182 	u16 mii_control;
5183 
5184 	DP(NETIF_MSG_LINK, "bnx2x_restart_autoneg\n");
5185 	/* Enable and restart BAM/CL37 aneg */
5186 
5187 	if (enable_cl73) {
5188 		CL22_RD_OVER_CL45(bp, phy,
5189 				  MDIO_REG_BANK_CL73_IEEEB0,
5190 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5191 				  &mii_control);
5192 
5193 		CL22_WR_OVER_CL45(bp, phy,
5194 				  MDIO_REG_BANK_CL73_IEEEB0,
5195 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5196 				  (mii_control |
5197 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN |
5198 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_RESTART_AN));
5199 	} else {
5200 
5201 		CL22_RD_OVER_CL45(bp, phy,
5202 				  MDIO_REG_BANK_COMBO_IEEE0,
5203 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5204 				  &mii_control);
5205 		DP(NETIF_MSG_LINK,
5206 			 "bnx2x_restart_autoneg mii_control before = 0x%x\n",
5207 			 mii_control);
5208 		CL22_WR_OVER_CL45(bp, phy,
5209 				  MDIO_REG_BANK_COMBO_IEEE0,
5210 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5211 				  (mii_control |
5212 				   MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5213 				   MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN));
5214 	}
5215 }
5216 
bnx2x_initialize_sgmii_process(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5217 static void bnx2x_initialize_sgmii_process(struct bnx2x_phy *phy,
5218 					   struct link_params *params,
5219 					   struct link_vars *vars)
5220 {
5221 	struct bnx2x *bp = params->bp;
5222 	u16 control1;
5223 
5224 	/* In SGMII mode, the unicore is always slave */
5225 
5226 	CL22_RD_OVER_CL45(bp, phy,
5227 			  MDIO_REG_BANK_SERDES_DIGITAL,
5228 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5229 			  &control1);
5230 	control1 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT;
5231 	/* Set sgmii mode (and not fiber) */
5232 	control1 &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE |
5233 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET |
5234 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_MSTR_MODE);
5235 	CL22_WR_OVER_CL45(bp, phy,
5236 			  MDIO_REG_BANK_SERDES_DIGITAL,
5237 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5238 			  control1);
5239 
5240 	/* If forced speed */
5241 	if (!(vars->line_speed == SPEED_AUTO_NEG)) {
5242 		/* Set speed, disable autoneg */
5243 		u16 mii_control;
5244 
5245 		CL22_RD_OVER_CL45(bp, phy,
5246 				  MDIO_REG_BANK_COMBO_IEEE0,
5247 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5248 				  &mii_control);
5249 		mii_control &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5250 				 MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK|
5251 				 MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX);
5252 
5253 		switch (vars->line_speed) {
5254 		case SPEED_100:
5255 			mii_control |=
5256 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_100;
5257 			break;
5258 		case SPEED_1000:
5259 			mii_control |=
5260 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_1000;
5261 			break;
5262 		case SPEED_10:
5263 			/* There is nothing to set for 10M */
5264 			break;
5265 		default:
5266 			/* Invalid speed for SGMII */
5267 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5268 				  vars->line_speed);
5269 			break;
5270 		}
5271 
5272 		/* Setting the full duplex */
5273 		if (phy->req_duplex == DUPLEX_FULL)
5274 			mii_control |=
5275 				MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5276 		CL22_WR_OVER_CL45(bp, phy,
5277 				  MDIO_REG_BANK_COMBO_IEEE0,
5278 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5279 				  mii_control);
5280 
5281 	} else { /* AN mode */
5282 		/* Enable and restart AN */
5283 		bnx2x_restart_autoneg(phy, params, 0);
5284 	}
5285 }
5286 
5287 /* Link management
5288  */
bnx2x_direct_parallel_detect_used(struct bnx2x_phy * phy,struct link_params * params)5289 static int bnx2x_direct_parallel_detect_used(struct bnx2x_phy *phy,
5290 					     struct link_params *params)
5291 {
5292 	struct bnx2x *bp = params->bp;
5293 	u16 pd_10g, status2_1000x;
5294 	if (phy->req_line_speed != SPEED_AUTO_NEG)
5295 		return 0;
5296 	CL22_RD_OVER_CL45(bp, phy,
5297 			  MDIO_REG_BANK_SERDES_DIGITAL,
5298 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5299 			  &status2_1000x);
5300 	CL22_RD_OVER_CL45(bp, phy,
5301 			  MDIO_REG_BANK_SERDES_DIGITAL,
5302 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5303 			  &status2_1000x);
5304 	if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) {
5305 		DP(NETIF_MSG_LINK, "1G parallel detect link on port %d\n",
5306 			 params->port);
5307 		return 1;
5308 	}
5309 
5310 	CL22_RD_OVER_CL45(bp, phy,
5311 			  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5312 			  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS,
5313 			  &pd_10g);
5314 
5315 	if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) {
5316 		DP(NETIF_MSG_LINK, "10G parallel detect link on port %d\n",
5317 			 params->port);
5318 		return 1;
5319 	}
5320 	return 0;
5321 }
5322 
bnx2x_update_adv_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5323 static void bnx2x_update_adv_fc(struct bnx2x_phy *phy,
5324 				struct link_params *params,
5325 				struct link_vars *vars,
5326 				u32 gp_status)
5327 {
5328 	u16 ld_pause;   /* local driver */
5329 	u16 lp_pause;   /* link partner */
5330 	u16 pause_result;
5331 	struct bnx2x *bp = params->bp;
5332 	if ((gp_status &
5333 	     (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5334 	      MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) ==
5335 	    (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5336 	     MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) {
5337 
5338 		CL22_RD_OVER_CL45(bp, phy,
5339 				  MDIO_REG_BANK_CL73_IEEEB1,
5340 				  MDIO_CL73_IEEEB1_AN_ADV1,
5341 				  &ld_pause);
5342 		CL22_RD_OVER_CL45(bp, phy,
5343 				  MDIO_REG_BANK_CL73_IEEEB1,
5344 				  MDIO_CL73_IEEEB1_AN_LP_ADV1,
5345 				  &lp_pause);
5346 		pause_result = (ld_pause &
5347 				MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK) >> 8;
5348 		pause_result |= (lp_pause &
5349 				 MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK) >> 10;
5350 		DP(NETIF_MSG_LINK, "pause_result CL73 0x%x\n", pause_result);
5351 	} else {
5352 		CL22_RD_OVER_CL45(bp, phy,
5353 				  MDIO_REG_BANK_COMBO_IEEE0,
5354 				  MDIO_COMBO_IEEE0_AUTO_NEG_ADV,
5355 				  &ld_pause);
5356 		CL22_RD_OVER_CL45(bp, phy,
5357 			MDIO_REG_BANK_COMBO_IEEE0,
5358 			MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1,
5359 			&lp_pause);
5360 		pause_result = (ld_pause &
5361 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>5;
5362 		pause_result |= (lp_pause &
5363 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>7;
5364 		DP(NETIF_MSG_LINK, "pause_result CL37 0x%x\n", pause_result);
5365 	}
5366 	bnx2x_pause_resolve(vars, pause_result);
5367 
5368 }
5369 
bnx2x_flow_ctrl_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5370 static void bnx2x_flow_ctrl_resolve(struct bnx2x_phy *phy,
5371 				    struct link_params *params,
5372 				    struct link_vars *vars,
5373 				    u32 gp_status)
5374 {
5375 	struct bnx2x *bp = params->bp;
5376 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5377 
5378 	/* Resolve from gp_status in case of AN complete and not sgmii */
5379 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO) {
5380 		/* Update the advertised flow-controled of LD/LP in AN */
5381 		if (phy->req_line_speed == SPEED_AUTO_NEG)
5382 			bnx2x_update_adv_fc(phy, params, vars, gp_status);
5383 		/* But set the flow-control result as the requested one */
5384 		vars->flow_ctrl = phy->req_flow_ctrl;
5385 	} else if (phy->req_line_speed != SPEED_AUTO_NEG)
5386 		vars->flow_ctrl = params->req_fc_auto_adv;
5387 	else if ((gp_status & MDIO_AN_CL73_OR_37_COMPLETE) &&
5388 		 (!(vars->phy_flags & PHY_SGMII_FLAG))) {
5389 		if (bnx2x_direct_parallel_detect_used(phy, params)) {
5390 			vars->flow_ctrl = params->req_fc_auto_adv;
5391 			return;
5392 		}
5393 		bnx2x_update_adv_fc(phy, params, vars, gp_status);
5394 	}
5395 	DP(NETIF_MSG_LINK, "flow_ctrl 0x%x\n", vars->flow_ctrl);
5396 }
5397 
bnx2x_check_fallback_to_cl37(struct bnx2x_phy * phy,struct link_params * params)5398 static void bnx2x_check_fallback_to_cl37(struct bnx2x_phy *phy,
5399 					 struct link_params *params)
5400 {
5401 	struct bnx2x *bp = params->bp;
5402 	u16 rx_status, ustat_val, cl37_fsm_received;
5403 	DP(NETIF_MSG_LINK, "bnx2x_check_fallback_to_cl37\n");
5404 	/* Step 1: Make sure signal is detected */
5405 	CL22_RD_OVER_CL45(bp, phy,
5406 			  MDIO_REG_BANK_RX0,
5407 			  MDIO_RX0_RX_STATUS,
5408 			  &rx_status);
5409 	if ((rx_status & MDIO_RX0_RX_STATUS_SIGDET) !=
5410 	    (MDIO_RX0_RX_STATUS_SIGDET)) {
5411 		DP(NETIF_MSG_LINK, "Signal is not detected. Restoring CL73."
5412 			     "rx_status(0x80b0) = 0x%x\n", rx_status);
5413 		CL22_WR_OVER_CL45(bp, phy,
5414 				  MDIO_REG_BANK_CL73_IEEEB0,
5415 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5416 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN);
5417 		return;
5418 	}
5419 	/* Step 2: Check CL73 state machine */
5420 	CL22_RD_OVER_CL45(bp, phy,
5421 			  MDIO_REG_BANK_CL73_USERB0,
5422 			  MDIO_CL73_USERB0_CL73_USTAT1,
5423 			  &ustat_val);
5424 	if ((ustat_val &
5425 	     (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5426 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) !=
5427 	    (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5428 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) {
5429 		DP(NETIF_MSG_LINK, "CL73 state-machine is not stable. "
5430 			     "ustat_val(0x8371) = 0x%x\n", ustat_val);
5431 		return;
5432 	}
5433 	/* Step 3: Check CL37 Message Pages received to indicate LP
5434 	 * supports only CL37
5435 	 */
5436 	CL22_RD_OVER_CL45(bp, phy,
5437 			  MDIO_REG_BANK_REMOTE_PHY,
5438 			  MDIO_REMOTE_PHY_MISC_RX_STATUS,
5439 			  &cl37_fsm_received);
5440 	if ((cl37_fsm_received &
5441 	     (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5442 	     MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) !=
5443 	    (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5444 	      MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) {
5445 		DP(NETIF_MSG_LINK, "No CL37 FSM were received. "
5446 			     "misc_rx_status(0x8330) = 0x%x\n",
5447 			 cl37_fsm_received);
5448 		return;
5449 	}
5450 	/* The combined cl37/cl73 fsm state information indicating that
5451 	 * we are connected to a device which does not support cl73, but
5452 	 * does support cl37 BAM. In this case we disable cl73 and
5453 	 * restart cl37 auto-neg
5454 	 */
5455 
5456 	/* Disable CL73 */
5457 	CL22_WR_OVER_CL45(bp, phy,
5458 			  MDIO_REG_BANK_CL73_IEEEB0,
5459 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5460 			  0);
5461 	/* Restart CL37 autoneg */
5462 	bnx2x_restart_autoneg(phy, params, 0);
5463 	DP(NETIF_MSG_LINK, "Disabling CL73, and restarting CL37 autoneg\n");
5464 }
5465 
bnx2x_xgxs_an_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5466 static void bnx2x_xgxs_an_resolve(struct bnx2x_phy *phy,
5467 				  struct link_params *params,
5468 				  struct link_vars *vars,
5469 				  u32 gp_status)
5470 {
5471 	if (gp_status & MDIO_AN_CL73_OR_37_COMPLETE)
5472 		vars->link_status |=
5473 			LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5474 
5475 	if (bnx2x_direct_parallel_detect_used(phy, params))
5476 		vars->link_status |=
5477 			LINK_STATUS_PARALLEL_DETECTION_USED;
5478 }
bnx2x_get_link_speed_duplex(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u16 is_link_up,u16 speed_mask,u16 is_duplex)5479 static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
5480 				     struct link_params *params,
5481 				      struct link_vars *vars,
5482 				      u16 is_link_up,
5483 				      u16 speed_mask,
5484 				      u16 is_duplex)
5485 {
5486 	struct bnx2x *bp = params->bp;
5487 	if (phy->req_line_speed == SPEED_AUTO_NEG)
5488 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
5489 	if (is_link_up) {
5490 		DP(NETIF_MSG_LINK, "phy link up\n");
5491 
5492 		vars->phy_link_up = 1;
5493 		vars->link_status |= LINK_STATUS_LINK_UP;
5494 
5495 		switch (speed_mask) {
5496 		case GP_STATUS_10M:
5497 			vars->line_speed = SPEED_10;
5498 			if (is_duplex == DUPLEX_FULL)
5499 				vars->link_status |= LINK_10TFD;
5500 			else
5501 				vars->link_status |= LINK_10THD;
5502 			break;
5503 
5504 		case GP_STATUS_100M:
5505 			vars->line_speed = SPEED_100;
5506 			if (is_duplex == DUPLEX_FULL)
5507 				vars->link_status |= LINK_100TXFD;
5508 			else
5509 				vars->link_status |= LINK_100TXHD;
5510 			break;
5511 
5512 		case GP_STATUS_1G:
5513 		case GP_STATUS_1G_KX:
5514 			vars->line_speed = SPEED_1000;
5515 			if (is_duplex == DUPLEX_FULL)
5516 				vars->link_status |= LINK_1000TFD;
5517 			else
5518 				vars->link_status |= LINK_1000THD;
5519 			break;
5520 
5521 		case GP_STATUS_2_5G:
5522 			vars->line_speed = SPEED_2500;
5523 			if (is_duplex == DUPLEX_FULL)
5524 				vars->link_status |= LINK_2500TFD;
5525 			else
5526 				vars->link_status |= LINK_2500THD;
5527 			break;
5528 
5529 		case GP_STATUS_5G:
5530 		case GP_STATUS_6G:
5531 			DP(NETIF_MSG_LINK,
5532 				 "link speed unsupported  gp_status 0x%x\n",
5533 				  speed_mask);
5534 			return -EINVAL;
5535 
5536 		case GP_STATUS_10G_KX4:
5537 		case GP_STATUS_10G_HIG:
5538 		case GP_STATUS_10G_CX4:
5539 		case GP_STATUS_10G_KR:
5540 		case GP_STATUS_10G_SFI:
5541 		case GP_STATUS_10G_XFI:
5542 			vars->line_speed = SPEED_10000;
5543 			vars->link_status |= LINK_10GTFD;
5544 			break;
5545 		case GP_STATUS_20G_DXGXS:
5546 		case GP_STATUS_20G_KR2:
5547 			vars->line_speed = SPEED_20000;
5548 			vars->link_status |= LINK_20GTFD;
5549 			break;
5550 		default:
5551 			DP(NETIF_MSG_LINK,
5552 				  "link speed unsupported gp_status 0x%x\n",
5553 				  speed_mask);
5554 			return -EINVAL;
5555 		}
5556 	} else { /* link_down */
5557 		DP(NETIF_MSG_LINK, "phy link down\n");
5558 
5559 		vars->phy_link_up = 0;
5560 
5561 		vars->duplex = DUPLEX_FULL;
5562 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5563 		vars->mac_type = MAC_TYPE_NONE;
5564 	}
5565 	DP(NETIF_MSG_LINK, " phy_link_up %x line_speed %d\n",
5566 		    vars->phy_link_up, vars->line_speed);
5567 	return 0;
5568 }
5569 
bnx2x_link_settings_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5570 static int bnx2x_link_settings_status(struct bnx2x_phy *phy,
5571 				      struct link_params *params,
5572 				      struct link_vars *vars)
5573 {
5574 	struct bnx2x *bp = params->bp;
5575 
5576 	u16 gp_status, duplex = DUPLEX_HALF, link_up = 0, speed_mask;
5577 	int rc = 0;
5578 
5579 	/* Read gp_status */
5580 	CL22_RD_OVER_CL45(bp, phy,
5581 			  MDIO_REG_BANK_GP_STATUS,
5582 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
5583 			  &gp_status);
5584 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_DUPLEX_STATUS)
5585 		duplex = DUPLEX_FULL;
5586 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS)
5587 		link_up = 1;
5588 	speed_mask = gp_status & GP_STATUS_SPEED_MASK;
5589 	DP(NETIF_MSG_LINK, "gp_status 0x%x, is_link_up %d, speed_mask 0x%x\n",
5590 		       gp_status, link_up, speed_mask);
5591 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, speed_mask,
5592 					 duplex);
5593 	if (rc == -EINVAL)
5594 		return rc;
5595 
5596 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) {
5597 		if (SINGLE_MEDIA_DIRECT(params)) {
5598 			vars->duplex = duplex;
5599 			bnx2x_flow_ctrl_resolve(phy, params, vars, gp_status);
5600 			if (phy->req_line_speed == SPEED_AUTO_NEG)
5601 				bnx2x_xgxs_an_resolve(phy, params, vars,
5602 						      gp_status);
5603 		}
5604 	} else { /* Link_down */
5605 		if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
5606 		    SINGLE_MEDIA_DIRECT(params)) {
5607 			/* Check signal is detected */
5608 			bnx2x_check_fallback_to_cl37(phy, params);
5609 		}
5610 	}
5611 
5612 	/* Read LP advertised speeds*/
5613 	if (SINGLE_MEDIA_DIRECT(params) &&
5614 	    (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)) {
5615 		u16 val;
5616 
5617 		CL22_RD_OVER_CL45(bp, phy, MDIO_REG_BANK_CL73_IEEEB1,
5618 				  MDIO_CL73_IEEEB1_AN_LP_ADV2, &val);
5619 
5620 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
5621 			vars->link_status |=
5622 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
5623 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
5624 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
5625 			vars->link_status |=
5626 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5627 
5628 		CL22_RD_OVER_CL45(bp, phy, MDIO_REG_BANK_OVER_1G,
5629 				  MDIO_OVER_1G_LP_UP1, &val);
5630 
5631 		if (val & MDIO_OVER_1G_UP1_2_5G)
5632 			vars->link_status |=
5633 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
5634 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
5635 			vars->link_status |=
5636 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5637 	}
5638 
5639 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5640 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5641 	return rc;
5642 }
5643 
bnx2x_warpcore_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5644 static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
5645 				     struct link_params *params,
5646 				     struct link_vars *vars)
5647 {
5648 	struct bnx2x *bp = params->bp;
5649 	u8 lane;
5650 	u16 gp_status1, gp_speed, link_up, duplex = DUPLEX_FULL;
5651 	int rc = 0;
5652 	lane = bnx2x_get_warpcore_lane(phy, params);
5653 	/* Read gp_status */
5654 	if ((params->loopback_mode) &&
5655 	    (phy->flags & FLAGS_WC_DUAL_MODE)) {
5656 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5657 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
5658 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5659 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
5660 		link_up &= 0x1;
5661 	} else if ((phy->req_line_speed > SPEED_10000) &&
5662 		(phy->supported & SUPPORTED_20000baseMLD2_Full)) {
5663 		u16 temp_link_up;
5664 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5665 				1, &temp_link_up);
5666 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5667 				1, &link_up);
5668 		DP(NETIF_MSG_LINK, "PCS RX link status = 0x%x-->0x%x\n",
5669 			       temp_link_up, link_up);
5670 		link_up &= (1<<2);
5671 		if (link_up)
5672 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5673 	} else {
5674 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5675 				MDIO_WC_REG_GP2_STATUS_GP_2_1,
5676 				&gp_status1);
5677 		DP(NETIF_MSG_LINK, "0x81d1 = 0x%x\n", gp_status1);
5678 		/* Check for either KR, 1G, or AN up. */
5679 		link_up = ((gp_status1 >> 8) |
5680 			   (gp_status1 >> 12) |
5681 			   (gp_status1)) &
5682 			(1 << lane);
5683 		if (phy->supported & SUPPORTED_20000baseKR2_Full) {
5684 			u16 an_link;
5685 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5686 					MDIO_AN_REG_STATUS, &an_link);
5687 			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5688 					MDIO_AN_REG_STATUS, &an_link);
5689 			link_up |= (an_link & (1<<2));
5690 		}
5691 		if (link_up && SINGLE_MEDIA_DIRECT(params)) {
5692 			u16 pd, gp_status4;
5693 			if (phy->req_line_speed == SPEED_AUTO_NEG) {
5694 				/* Check Autoneg complete */
5695 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5696 						MDIO_WC_REG_GP2_STATUS_GP_2_4,
5697 						&gp_status4);
5698 				if (gp_status4 & ((1<<12)<<lane))
5699 					vars->link_status |=
5700 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5701 
5702 				/* Check parallel detect used */
5703 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5704 						MDIO_WC_REG_PAR_DET_10G_STATUS,
5705 						&pd);
5706 				if (pd & (1<<15))
5707 					vars->link_status |=
5708 					LINK_STATUS_PARALLEL_DETECTION_USED;
5709 			}
5710 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5711 			vars->duplex = duplex;
5712 		}
5713 	}
5714 
5715 	if ((vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) &&
5716 	    SINGLE_MEDIA_DIRECT(params)) {
5717 		u16 val;
5718 
5719 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
5720 				MDIO_AN_REG_LP_AUTO_NEG2, &val);
5721 
5722 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
5723 			vars->link_status |=
5724 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
5725 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
5726 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
5727 			vars->link_status |=
5728 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5729 
5730 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5731 				MDIO_WC_REG_DIGITAL3_LP_UP1, &val);
5732 
5733 		if (val & MDIO_OVER_1G_UP1_2_5G)
5734 			vars->link_status |=
5735 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
5736 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
5737 			vars->link_status |=
5738 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
5739 
5740 	}
5741 
5742 
5743 	if (lane < 2) {
5744 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5745 				MDIO_WC_REG_GP2_STATUS_GP_2_2, &gp_speed);
5746 	} else {
5747 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5748 				MDIO_WC_REG_GP2_STATUS_GP_2_3, &gp_speed);
5749 	}
5750 	DP(NETIF_MSG_LINK, "lane %d gp_speed 0x%x\n", lane, gp_speed);
5751 
5752 	if ((lane & 1) == 0)
5753 		gp_speed <<= 8;
5754 	gp_speed &= 0x3f00;
5755 	link_up = !!link_up;
5756 
5757 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
5758 					 duplex);
5759 
5760 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5761 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5762 	return rc;
5763 }
bnx2x_set_gmii_tx_driver(struct link_params * params)5764 static void bnx2x_set_gmii_tx_driver(struct link_params *params)
5765 {
5766 	struct bnx2x *bp = params->bp;
5767 	struct bnx2x_phy *phy = &params->phy[INT_PHY];
5768 	u16 lp_up2;
5769 	u16 tx_driver;
5770 	u16 bank;
5771 
5772 	/* Read precomp */
5773 	CL22_RD_OVER_CL45(bp, phy,
5774 			  MDIO_REG_BANK_OVER_1G,
5775 			  MDIO_OVER_1G_LP_UP2, &lp_up2);
5776 
5777 	/* Bits [10:7] at lp_up2, positioned at [15:12] */
5778 	lp_up2 = (((lp_up2 & MDIO_OVER_1G_LP_UP2_PREEMPHASIS_MASK) >>
5779 		   MDIO_OVER_1G_LP_UP2_PREEMPHASIS_SHIFT) <<
5780 		  MDIO_TX0_TX_DRIVER_PREEMPHASIS_SHIFT);
5781 
5782 	if (lp_up2 == 0)
5783 		return;
5784 
5785 	for (bank = MDIO_REG_BANK_TX0; bank <= MDIO_REG_BANK_TX3;
5786 	      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0)) {
5787 		CL22_RD_OVER_CL45(bp, phy,
5788 				  bank,
5789 				  MDIO_TX0_TX_DRIVER, &tx_driver);
5790 
5791 		/* Replace tx_driver bits [15:12] */
5792 		if (lp_up2 !=
5793 		    (tx_driver & MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK)) {
5794 			tx_driver &= ~MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK;
5795 			tx_driver |= lp_up2;
5796 			CL22_WR_OVER_CL45(bp, phy,
5797 					  bank,
5798 					  MDIO_TX0_TX_DRIVER, tx_driver);
5799 		}
5800 	}
5801 }
5802 
bnx2x_emac_program(struct link_params * params,struct link_vars * vars)5803 static int bnx2x_emac_program(struct link_params *params,
5804 			      struct link_vars *vars)
5805 {
5806 	struct bnx2x *bp = params->bp;
5807 	u8 port = params->port;
5808 	u16 mode = 0;
5809 
5810 	DP(NETIF_MSG_LINK, "setting link speed & duplex\n");
5811 	bnx2x_bits_dis(bp, GRCBASE_EMAC0 + port*0x400 +
5812 		       EMAC_REG_EMAC_MODE,
5813 		       (EMAC_MODE_25G_MODE |
5814 			EMAC_MODE_PORT_MII_10M |
5815 			EMAC_MODE_HALF_DUPLEX));
5816 	switch (vars->line_speed) {
5817 	case SPEED_10:
5818 		mode |= EMAC_MODE_PORT_MII_10M;
5819 		break;
5820 
5821 	case SPEED_100:
5822 		mode |= EMAC_MODE_PORT_MII;
5823 		break;
5824 
5825 	case SPEED_1000:
5826 		mode |= EMAC_MODE_PORT_GMII;
5827 		break;
5828 
5829 	case SPEED_2500:
5830 		mode |= (EMAC_MODE_25G_MODE | EMAC_MODE_PORT_GMII);
5831 		break;
5832 
5833 	default:
5834 		/* 10G not valid for EMAC */
5835 		DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5836 			   vars->line_speed);
5837 		return -EINVAL;
5838 	}
5839 
5840 	if (vars->duplex == DUPLEX_HALF)
5841 		mode |= EMAC_MODE_HALF_DUPLEX;
5842 	bnx2x_bits_en(bp,
5843 		      GRCBASE_EMAC0 + port*0x400 + EMAC_REG_EMAC_MODE,
5844 		      mode);
5845 
5846 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
5847 	return 0;
5848 }
5849 
bnx2x_set_preemphasis(struct bnx2x_phy * phy,struct link_params * params)5850 static void bnx2x_set_preemphasis(struct bnx2x_phy *phy,
5851 				  struct link_params *params)
5852 {
5853 
5854 	u16 bank, i = 0;
5855 	struct bnx2x *bp = params->bp;
5856 
5857 	for (bank = MDIO_REG_BANK_RX0, i = 0; bank <= MDIO_REG_BANK_RX3;
5858 	      bank += (MDIO_REG_BANK_RX1-MDIO_REG_BANK_RX0), i++) {
5859 			CL22_WR_OVER_CL45(bp, phy,
5860 					  bank,
5861 					  MDIO_RX0_RX_EQ_BOOST,
5862 					  phy->rx_preemphasis[i]);
5863 	}
5864 
5865 	for (bank = MDIO_REG_BANK_TX0, i = 0; bank <= MDIO_REG_BANK_TX3;
5866 		      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0), i++) {
5867 			CL22_WR_OVER_CL45(bp, phy,
5868 					  bank,
5869 					  MDIO_TX0_TX_DRIVER,
5870 					  phy->tx_preemphasis[i]);
5871 	}
5872 }
5873 
bnx2x_xgxs_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5874 static void bnx2x_xgxs_config_init(struct bnx2x_phy *phy,
5875 				   struct link_params *params,
5876 				   struct link_vars *vars)
5877 {
5878 	struct bnx2x *bp = params->bp;
5879 	u8 enable_cl73 = (SINGLE_MEDIA_DIRECT(params) ||
5880 			  (params->loopback_mode == LOOPBACK_XGXS));
5881 	if (!(vars->phy_flags & PHY_SGMII_FLAG)) {
5882 		if (SINGLE_MEDIA_DIRECT(params) &&
5883 		    (params->feature_config_flags &
5884 		     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED))
5885 			bnx2x_set_preemphasis(phy, params);
5886 
5887 		/* Forced speed requested? */
5888 		if (vars->line_speed != SPEED_AUTO_NEG ||
5889 		    (SINGLE_MEDIA_DIRECT(params) &&
5890 		     params->loopback_mode == LOOPBACK_EXT)) {
5891 			DP(NETIF_MSG_LINK, "not SGMII, no AN\n");
5892 
5893 			/* Disable autoneg */
5894 			bnx2x_set_autoneg(phy, params, vars, 0);
5895 
5896 			/* Program speed and duplex */
5897 			bnx2x_program_serdes(phy, params, vars);
5898 
5899 		} else { /* AN_mode */
5900 			DP(NETIF_MSG_LINK, "not SGMII, AN\n");
5901 
5902 			/* AN enabled */
5903 			bnx2x_set_brcm_cl37_advertisement(phy, params);
5904 
5905 			/* Program duplex & pause advertisement (for aneg) */
5906 			bnx2x_set_ieee_aneg_advertisement(phy, params,
5907 							  vars->ieee_fc);
5908 
5909 			/* Enable autoneg */
5910 			bnx2x_set_autoneg(phy, params, vars, enable_cl73);
5911 
5912 			/* Enable and restart AN */
5913 			bnx2x_restart_autoneg(phy, params, enable_cl73);
5914 		}
5915 
5916 	} else { /* SGMII mode */
5917 		DP(NETIF_MSG_LINK, "SGMII\n");
5918 
5919 		bnx2x_initialize_sgmii_process(phy, params, vars);
5920 	}
5921 }
5922 
bnx2x_prepare_xgxs(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5923 static int bnx2x_prepare_xgxs(struct bnx2x_phy *phy,
5924 			  struct link_params *params,
5925 			  struct link_vars *vars)
5926 {
5927 	int rc;
5928 	vars->phy_flags |= PHY_XGXS_FLAG;
5929 	if ((phy->req_line_speed &&
5930 	     ((phy->req_line_speed == SPEED_100) ||
5931 	      (phy->req_line_speed == SPEED_10))) ||
5932 	    (!phy->req_line_speed &&
5933 	     (phy->speed_cap_mask >=
5934 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
5935 	     (phy->speed_cap_mask <
5936 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
5937 	    (phy->type == PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT_SD))
5938 		vars->phy_flags |= PHY_SGMII_FLAG;
5939 	else
5940 		vars->phy_flags &= ~PHY_SGMII_FLAG;
5941 
5942 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
5943 	bnx2x_set_aer_mmd(params, phy);
5944 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
5945 		bnx2x_set_master_ln(params, phy);
5946 
5947 	rc = bnx2x_reset_unicore(params, phy, 0);
5948 	/* Reset the SerDes and wait for reset bit return low */
5949 	if (rc)
5950 		return rc;
5951 
5952 	bnx2x_set_aer_mmd(params, phy);
5953 	/* Setting the masterLn_def again after the reset */
5954 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) {
5955 		bnx2x_set_master_ln(params, phy);
5956 		bnx2x_set_swap_lanes(params, phy);
5957 	}
5958 
5959 	return rc;
5960 }
5961 
bnx2x_wait_reset_complete(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_params * params)5962 static u16 bnx2x_wait_reset_complete(struct bnx2x *bp,
5963 				     struct bnx2x_phy *phy,
5964 				     struct link_params *params)
5965 {
5966 	u16 cnt, ctrl;
5967 	/* Wait for soft reset to get cleared up to 1 sec */
5968 	for (cnt = 0; cnt < 1000; cnt++) {
5969 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
5970 			bnx2x_cl22_read(bp, phy,
5971 				MDIO_PMA_REG_CTRL, &ctrl);
5972 		else
5973 			bnx2x_cl45_read(bp, phy,
5974 				MDIO_PMA_DEVAD,
5975 				MDIO_PMA_REG_CTRL, &ctrl);
5976 		if (!(ctrl & (1<<15)))
5977 			break;
5978 		usleep_range(1000, 2000);
5979 	}
5980 
5981 	if (cnt == 1000)
5982 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
5983 				      " Port %d\n",
5984 			 params->port);
5985 	DP(NETIF_MSG_LINK, "control reg 0x%x (after %d ms)\n", ctrl, cnt);
5986 	return cnt;
5987 }
5988 
bnx2x_link_int_enable(struct link_params * params)5989 static void bnx2x_link_int_enable(struct link_params *params)
5990 {
5991 	u8 port = params->port;
5992 	u32 mask;
5993 	struct bnx2x *bp = params->bp;
5994 
5995 	/* Setting the status to report on link up for either XGXS or SerDes */
5996 	if (CHIP_IS_E3(bp)) {
5997 		mask = NIG_MASK_XGXS0_LINK_STATUS;
5998 		if (!(SINGLE_MEDIA_DIRECT(params)))
5999 			mask |= NIG_MASK_MI_INT;
6000 	} else if (params->switch_cfg == SWITCH_CFG_10G) {
6001 		mask = (NIG_MASK_XGXS0_LINK10G |
6002 			NIG_MASK_XGXS0_LINK_STATUS);
6003 		DP(NETIF_MSG_LINK, "enabled XGXS interrupt\n");
6004 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
6005 			params->phy[INT_PHY].type !=
6006 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) {
6007 			mask |= NIG_MASK_MI_INT;
6008 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
6009 		}
6010 
6011 	} else { /* SerDes */
6012 		mask = NIG_MASK_SERDES0_LINK_STATUS;
6013 		DP(NETIF_MSG_LINK, "enabled SerDes interrupt\n");
6014 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
6015 			params->phy[INT_PHY].type !=
6016 				PORT_HW_CFG_SERDES_EXT_PHY_TYPE_NOT_CONN) {
6017 			mask |= NIG_MASK_MI_INT;
6018 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
6019 		}
6020 	}
6021 	bnx2x_bits_en(bp,
6022 		      NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
6023 		      mask);
6024 
6025 	DP(NETIF_MSG_LINK, "port %x, is_xgxs %x, int_status 0x%x\n", port,
6026 		 (params->switch_cfg == SWITCH_CFG_10G),
6027 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6028 	DP(NETIF_MSG_LINK, " int_mask 0x%x, MI_INT %x, SERDES_LINK %x\n",
6029 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6030 		 REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT + port*0x18),
6031 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS+port*0x3c));
6032 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
6033 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6034 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6035 }
6036 
bnx2x_rearm_latch_signal(struct bnx2x * bp,u8 port,u8 exp_mi_int)6037 static void bnx2x_rearm_latch_signal(struct bnx2x *bp, u8 port,
6038 				     u8 exp_mi_int)
6039 {
6040 	u32 latch_status = 0;
6041 
6042 	/* Disable the MI INT ( external phy int ) by writing 1 to the
6043 	 * status register. Link down indication is high-active-signal,
6044 	 * so in this case we need to write the status to clear the XOR
6045 	 */
6046 	/* Read Latched signals */
6047 	latch_status = REG_RD(bp,
6048 				    NIG_REG_LATCH_STATUS_0 + port*8);
6049 	DP(NETIF_MSG_LINK, "latch_status = 0x%x\n", latch_status);
6050 	/* Handle only those with latched-signal=up.*/
6051 	if (exp_mi_int)
6052 		bnx2x_bits_en(bp,
6053 			      NIG_REG_STATUS_INTERRUPT_PORT0
6054 			      + port*4,
6055 			      NIG_STATUS_EMAC0_MI_INT);
6056 	else
6057 		bnx2x_bits_dis(bp,
6058 			       NIG_REG_STATUS_INTERRUPT_PORT0
6059 			       + port*4,
6060 			       NIG_STATUS_EMAC0_MI_INT);
6061 
6062 	if (latch_status & 1) {
6063 
6064 		/* For all latched-signal=up : Re-Arm Latch signals */
6065 		REG_WR(bp, NIG_REG_LATCH_STATUS_0 + port*8,
6066 		       (latch_status & 0xfffe) | (latch_status & 1));
6067 	}
6068 	/* For all latched-signal=up,Write original_signal to status */
6069 }
6070 
bnx2x_link_int_ack(struct link_params * params,struct link_vars * vars,u8 is_10g_plus)6071 static void bnx2x_link_int_ack(struct link_params *params,
6072 			       struct link_vars *vars, u8 is_10g_plus)
6073 {
6074 	struct bnx2x *bp = params->bp;
6075 	u8 port = params->port;
6076 	u32 mask;
6077 	/* First reset all status we assume only one line will be
6078 	 * change at a time
6079 	 */
6080 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6081 		       (NIG_STATUS_XGXS0_LINK10G |
6082 			NIG_STATUS_XGXS0_LINK_STATUS |
6083 			NIG_STATUS_SERDES0_LINK_STATUS));
6084 	if (vars->phy_link_up) {
6085 		if (USES_WARPCORE(bp))
6086 			mask = NIG_STATUS_XGXS0_LINK_STATUS;
6087 		else {
6088 			if (is_10g_plus)
6089 				mask = NIG_STATUS_XGXS0_LINK10G;
6090 			else if (params->switch_cfg == SWITCH_CFG_10G) {
6091 				/* Disable the link interrupt by writing 1 to
6092 				 * the relevant lane in the status register
6093 				 */
6094 				u32 ser_lane =
6095 					((params->lane_config &
6096 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
6097 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
6098 				mask = ((1 << ser_lane) <<
6099 				       NIG_STATUS_XGXS0_LINK_STATUS_SIZE);
6100 			} else
6101 				mask = NIG_STATUS_SERDES0_LINK_STATUS;
6102 		}
6103 		DP(NETIF_MSG_LINK, "Ack link up interrupt with mask 0x%x\n",
6104 			       mask);
6105 		bnx2x_bits_en(bp,
6106 			      NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6107 			      mask);
6108 	}
6109 }
6110 
bnx2x_format_ver(u32 num,u8 * str,u16 * len)6111 static int bnx2x_format_ver(u32 num, u8 *str, u16 *len)
6112 {
6113 	u8 *str_ptr = str;
6114 	u32 mask = 0xf0000000;
6115 	u8 shift = 8*4;
6116 	u8 digit;
6117 	u8 remove_leading_zeros = 1;
6118 	if (*len < 10) {
6119 		/* Need more than 10chars for this format */
6120 		*str_ptr = '\0';
6121 		(*len)--;
6122 		return -EINVAL;
6123 	}
6124 	while (shift > 0) {
6125 
6126 		shift -= 4;
6127 		digit = ((num & mask) >> shift);
6128 		if (digit == 0 && remove_leading_zeros) {
6129 			mask = mask >> 4;
6130 			continue;
6131 		} else if (digit < 0xa)
6132 			*str_ptr = digit + '0';
6133 		else
6134 			*str_ptr = digit - 0xa + 'a';
6135 		remove_leading_zeros = 0;
6136 		str_ptr++;
6137 		(*len)--;
6138 		mask = mask >> 4;
6139 		if (shift == 4*4) {
6140 			*str_ptr = '.';
6141 			str_ptr++;
6142 			(*len)--;
6143 			remove_leading_zeros = 1;
6144 		}
6145 	}
6146 	return 0;
6147 }
6148 
6149 
bnx2x_null_format_ver(u32 spirom_ver,u8 * str,u16 * len)6150 static int bnx2x_null_format_ver(u32 spirom_ver, u8 *str, u16 *len)
6151 {
6152 	str[0] = '\0';
6153 	(*len)--;
6154 	return 0;
6155 }
6156 
bnx2x_get_ext_phy_fw_version(struct link_params * params,u8 * version,u16 len)6157 int bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 *version,
6158 				 u16 len)
6159 {
6160 	struct bnx2x *bp;
6161 	u32 spirom_ver = 0;
6162 	int status = 0;
6163 	u8 *ver_p = version;
6164 	u16 remain_len = len;
6165 	if (version == NULL || params == NULL)
6166 		return -EINVAL;
6167 	bp = params->bp;
6168 
6169 	/* Extract first external phy*/
6170 	version[0] = '\0';
6171 	spirom_ver = REG_RD(bp, params->phy[EXT_PHY1].ver_addr);
6172 
6173 	if (params->phy[EXT_PHY1].format_fw_ver) {
6174 		status |= params->phy[EXT_PHY1].format_fw_ver(spirom_ver,
6175 							      ver_p,
6176 							      &remain_len);
6177 		ver_p += (len - remain_len);
6178 	}
6179 	if ((params->num_phys == MAX_PHYS) &&
6180 	    (params->phy[EXT_PHY2].ver_addr != 0)) {
6181 		spirom_ver = REG_RD(bp, params->phy[EXT_PHY2].ver_addr);
6182 		if (params->phy[EXT_PHY2].format_fw_ver) {
6183 			*ver_p = '/';
6184 			ver_p++;
6185 			remain_len--;
6186 			status |= params->phy[EXT_PHY2].format_fw_ver(
6187 				spirom_ver,
6188 				ver_p,
6189 				&remain_len);
6190 			ver_p = version + (len - remain_len);
6191 		}
6192 	}
6193 	*ver_p = '\0';
6194 	return status;
6195 }
6196 
bnx2x_set_xgxs_loopback(struct bnx2x_phy * phy,struct link_params * params)6197 static void bnx2x_set_xgxs_loopback(struct bnx2x_phy *phy,
6198 				    struct link_params *params)
6199 {
6200 	u8 port = params->port;
6201 	struct bnx2x *bp = params->bp;
6202 
6203 	if (phy->req_line_speed != SPEED_1000) {
6204 		u32 md_devad = 0;
6205 
6206 		DP(NETIF_MSG_LINK, "XGXS 10G loopback enable\n");
6207 
6208 		if (!CHIP_IS_E3(bp)) {
6209 			/* Change the uni_phy_addr in the nig */
6210 			md_devad = REG_RD(bp, (NIG_REG_XGXS0_CTRL_MD_DEVAD +
6211 					       port*0x18));
6212 
6213 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6214 			       0x5);
6215 		}
6216 
6217 		bnx2x_cl45_write(bp, phy,
6218 				 5,
6219 				 (MDIO_REG_BANK_AER_BLOCK +
6220 				  (MDIO_AER_BLOCK_AER_REG & 0xf)),
6221 				 0x2800);
6222 
6223 		bnx2x_cl45_write(bp, phy,
6224 				 5,
6225 				 (MDIO_REG_BANK_CL73_IEEEB0 +
6226 				  (MDIO_CL73_IEEEB0_CL73_AN_CONTROL & 0xf)),
6227 				 0x6041);
6228 		msleep(200);
6229 		/* Set aer mmd back */
6230 		bnx2x_set_aer_mmd(params, phy);
6231 
6232 		if (!CHIP_IS_E3(bp)) {
6233 			/* And md_devad */
6234 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6235 			       md_devad);
6236 		}
6237 	} else {
6238 		u16 mii_ctrl;
6239 		DP(NETIF_MSG_LINK, "XGXS 1G loopback enable\n");
6240 		bnx2x_cl45_read(bp, phy, 5,
6241 				(MDIO_REG_BANK_COMBO_IEEE0 +
6242 				(MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6243 				&mii_ctrl);
6244 		bnx2x_cl45_write(bp, phy, 5,
6245 				 (MDIO_REG_BANK_COMBO_IEEE0 +
6246 				 (MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6247 				 mii_ctrl |
6248 				 MDIO_COMBO_IEEO_MII_CONTROL_LOOPBACK);
6249 	}
6250 }
6251 
bnx2x_set_led(struct link_params * params,struct link_vars * vars,u8 mode,u32 speed)6252 int bnx2x_set_led(struct link_params *params,
6253 		  struct link_vars *vars, u8 mode, u32 speed)
6254 {
6255 	u8 port = params->port;
6256 	u16 hw_led_mode = params->hw_led_mode;
6257 	int rc = 0;
6258 	u8 phy_idx;
6259 	u32 tmp;
6260 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
6261 	struct bnx2x *bp = params->bp;
6262 	DP(NETIF_MSG_LINK, "bnx2x_set_led: port %x, mode %d\n", port, mode);
6263 	DP(NETIF_MSG_LINK, "speed 0x%x, hw_led_mode 0x%x\n",
6264 		 speed, hw_led_mode);
6265 	/* In case */
6266 	for (phy_idx = EXT_PHY1; phy_idx < MAX_PHYS; phy_idx++) {
6267 		if (params->phy[phy_idx].set_link_led) {
6268 			params->phy[phy_idx].set_link_led(
6269 				&params->phy[phy_idx], params, mode);
6270 		}
6271 	}
6272 
6273 	switch (mode) {
6274 	case LED_MODE_FRONT_PANEL_OFF:
6275 	case LED_MODE_OFF:
6276 		REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 0);
6277 		REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6278 		       SHARED_HW_CFG_LED_MAC1);
6279 
6280 		tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6281 		if (params->phy[EXT_PHY1].type ==
6282 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
6283 			tmp &= ~(EMAC_LED_1000MB_OVERRIDE |
6284 				EMAC_LED_100MB_OVERRIDE |
6285 				EMAC_LED_10MB_OVERRIDE);
6286 		else
6287 			tmp |= EMAC_LED_OVERRIDE;
6288 
6289 		EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp);
6290 		break;
6291 
6292 	case LED_MODE_OPER:
6293 		/* For all other phys, OPER mode is same as ON, so in case
6294 		 * link is down, do nothing
6295 		 */
6296 		if (!vars->link_up)
6297 			break;
6298 	case LED_MODE_ON:
6299 		if (((params->phy[EXT_PHY1].type ==
6300 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727) ||
6301 			 (params->phy[EXT_PHY1].type ==
6302 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722)) &&
6303 		    CHIP_IS_E2(bp) && params->num_phys == 2) {
6304 			/* This is a work-around for E2+8727 Configurations */
6305 			if (mode == LED_MODE_ON ||
6306 				speed == SPEED_10000){
6307 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6308 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6309 
6310 				tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6311 				EMAC_WR(bp, EMAC_REG_EMAC_LED,
6312 					(tmp | EMAC_LED_OVERRIDE));
6313 				/* Return here without enabling traffic
6314 				 * LED blink and setting rate in ON mode.
6315 				 * In oper mode, enabling LED blink
6316 				 * and setting rate is needed.
6317 				 */
6318 				if (mode == LED_MODE_ON)
6319 					return rc;
6320 			}
6321 		} else if (SINGLE_MEDIA_DIRECT(params)) {
6322 			/* This is a work-around for HW issue found when link
6323 			 * is up in CL73
6324 			 */
6325 			if ((!CHIP_IS_E3(bp)) ||
6326 			    (CHIP_IS_E3(bp) &&
6327 			     mode == LED_MODE_ON))
6328 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6329 
6330 			if (CHIP_IS_E1x(bp) ||
6331 			    CHIP_IS_E2(bp) ||
6332 			    (mode == LED_MODE_ON))
6333 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6334 			else
6335 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6336 				       hw_led_mode);
6337 		} else if ((params->phy[EXT_PHY1].type ==
6338 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) &&
6339 			   (mode == LED_MODE_ON)) {
6340 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6341 			tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6342 			EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp |
6343 				EMAC_LED_OVERRIDE | EMAC_LED_1000MB_OVERRIDE);
6344 			/* Break here; otherwise, it'll disable the
6345 			 * intended override.
6346 			 */
6347 			break;
6348 		} else
6349 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6350 			       hw_led_mode);
6351 
6352 		REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0);
6353 		/* Set blinking rate to ~15.9Hz */
6354 		if (CHIP_IS_E3(bp))
6355 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6356 			       LED_BLINK_RATE_VAL_E3);
6357 		else
6358 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6359 			       LED_BLINK_RATE_VAL_E1X_E2);
6360 		REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_ENA_P0 +
6361 		       port*4, 1);
6362 		tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6363 		EMAC_WR(bp, EMAC_REG_EMAC_LED,
6364 			(tmp & (~EMAC_LED_OVERRIDE)));
6365 
6366 		if (CHIP_IS_E1(bp) &&
6367 		    ((speed == SPEED_2500) ||
6368 		     (speed == SPEED_1000) ||
6369 		     (speed == SPEED_100) ||
6370 		     (speed == SPEED_10))) {
6371 			/* For speeds less than 10G LED scheme is different */
6372 			REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0
6373 			       + port*4, 1);
6374 			REG_WR(bp, NIG_REG_LED_CONTROL_TRAFFIC_P0 +
6375 			       port*4, 0);
6376 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_TRAFFIC_P0 +
6377 			       port*4, 1);
6378 		}
6379 		break;
6380 
6381 	default:
6382 		rc = -EINVAL;
6383 		DP(NETIF_MSG_LINK, "bnx2x_set_led: Invalid led mode %d\n",
6384 			 mode);
6385 		break;
6386 	}
6387 	return rc;
6388 
6389 }
6390 
6391 /* This function comes to reflect the actual link state read DIRECTLY from the
6392  * HW
6393  */
bnx2x_test_link(struct link_params * params,struct link_vars * vars,u8 is_serdes)6394 int bnx2x_test_link(struct link_params *params, struct link_vars *vars,
6395 		    u8 is_serdes)
6396 {
6397 	struct bnx2x *bp = params->bp;
6398 	u16 gp_status = 0, phy_index = 0;
6399 	u8 ext_phy_link_up = 0, serdes_phy_type;
6400 	struct link_vars temp_vars;
6401 	struct bnx2x_phy *int_phy = &params->phy[INT_PHY];
6402 
6403 	if (CHIP_IS_E3(bp)) {
6404 		u16 link_up;
6405 		if (params->req_line_speed[LINK_CONFIG_IDX(INT_PHY)]
6406 		    > SPEED_10000) {
6407 			/* Check 20G link */
6408 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6409 					1, &link_up);
6410 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6411 					1, &link_up);
6412 			link_up &= (1<<2);
6413 		} else {
6414 			/* Check 10G link and below*/
6415 			u8 lane = bnx2x_get_warpcore_lane(int_phy, params);
6416 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6417 					MDIO_WC_REG_GP2_STATUS_GP_2_1,
6418 					&gp_status);
6419 			gp_status = ((gp_status >> 8) & 0xf) |
6420 				((gp_status >> 12) & 0xf);
6421 			link_up = gp_status & (1 << lane);
6422 		}
6423 		if (!link_up)
6424 			return -ESRCH;
6425 	} else {
6426 		CL22_RD_OVER_CL45(bp, int_phy,
6427 			  MDIO_REG_BANK_GP_STATUS,
6428 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
6429 			  &gp_status);
6430 	/* Link is up only if both local phy and external phy are up */
6431 	if (!(gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS))
6432 		return -ESRCH;
6433 	}
6434 	/* In XGXS loopback mode, do not check external PHY */
6435 	if (params->loopback_mode == LOOPBACK_XGXS)
6436 		return 0;
6437 
6438 	switch (params->num_phys) {
6439 	case 1:
6440 		/* No external PHY */
6441 		return 0;
6442 	case 2:
6443 		ext_phy_link_up = params->phy[EXT_PHY1].read_status(
6444 			&params->phy[EXT_PHY1],
6445 			params, &temp_vars);
6446 		break;
6447 	case 3: /* Dual Media */
6448 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6449 		      phy_index++) {
6450 			serdes_phy_type = ((params->phy[phy_index].media_type ==
6451 					    ETH_PHY_SFPP_10G_FIBER) ||
6452 					   (params->phy[phy_index].media_type ==
6453 					    ETH_PHY_SFP_1G_FIBER) ||
6454 					   (params->phy[phy_index].media_type ==
6455 					    ETH_PHY_XFP_FIBER) ||
6456 					   (params->phy[phy_index].media_type ==
6457 					    ETH_PHY_DA_TWINAX));
6458 
6459 			if (is_serdes != serdes_phy_type)
6460 				continue;
6461 			if (params->phy[phy_index].read_status) {
6462 				ext_phy_link_up |=
6463 					params->phy[phy_index].read_status(
6464 						&params->phy[phy_index],
6465 						params, &temp_vars);
6466 			}
6467 		}
6468 		break;
6469 	}
6470 	if (ext_phy_link_up)
6471 		return 0;
6472 	return -ESRCH;
6473 }
6474 
bnx2x_link_initialize(struct link_params * params,struct link_vars * vars)6475 static int bnx2x_link_initialize(struct link_params *params,
6476 				 struct link_vars *vars)
6477 {
6478 	int rc = 0;
6479 	u8 phy_index, non_ext_phy;
6480 	struct bnx2x *bp = params->bp;
6481 	/* In case of external phy existence, the line speed would be the
6482 	 * line speed linked up by the external phy. In case it is direct
6483 	 * only, then the line_speed during initialization will be
6484 	 * equal to the req_line_speed
6485 	 */
6486 	vars->line_speed = params->phy[INT_PHY].req_line_speed;
6487 
6488 	/* Initialize the internal phy in case this is a direct board
6489 	 * (no external phys), or this board has external phy which requires
6490 	 * to first.
6491 	 */
6492 	if (!USES_WARPCORE(bp))
6493 		bnx2x_prepare_xgxs(&params->phy[INT_PHY], params, vars);
6494 	/* init ext phy and enable link state int */
6495 	non_ext_phy = (SINGLE_MEDIA_DIRECT(params) ||
6496 		       (params->loopback_mode == LOOPBACK_XGXS));
6497 
6498 	if (non_ext_phy ||
6499 	    (params->phy[EXT_PHY1].flags & FLAGS_INIT_XGXS_FIRST) ||
6500 	    (params->loopback_mode == LOOPBACK_EXT_PHY)) {
6501 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
6502 		if (vars->line_speed == SPEED_AUTO_NEG &&
6503 		    (CHIP_IS_E1x(bp) ||
6504 		     CHIP_IS_E2(bp)))
6505 			bnx2x_set_parallel_detection(phy, params);
6506 			if (params->phy[INT_PHY].config_init)
6507 				params->phy[INT_PHY].config_init(phy,
6508 								 params,
6509 								 vars);
6510 	}
6511 
6512 	/* Init external phy*/
6513 	if (non_ext_phy) {
6514 		if (params->phy[INT_PHY].supported &
6515 		    SUPPORTED_FIBRE)
6516 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6517 	} else {
6518 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6519 		      phy_index++) {
6520 			/* No need to initialize second phy in case of first
6521 			 * phy only selection. In case of second phy, we do
6522 			 * need to initialize the first phy, since they are
6523 			 * connected.
6524 			 */
6525 			if (params->phy[phy_index].supported &
6526 			    SUPPORTED_FIBRE)
6527 				vars->link_status |= LINK_STATUS_SERDES_LINK;
6528 
6529 			if (phy_index == EXT_PHY2 &&
6530 			    (bnx2x_phy_selection(params) ==
6531 			     PORT_HW_CFG_PHY_SELECTION_FIRST_PHY)) {
6532 				DP(NETIF_MSG_LINK,
6533 				   "Not initializing second phy\n");
6534 				continue;
6535 			}
6536 			params->phy[phy_index].config_init(
6537 				&params->phy[phy_index],
6538 				params, vars);
6539 		}
6540 	}
6541 	/* Reset the interrupt indication after phy was initialized */
6542 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 +
6543 		       params->port*4,
6544 		       (NIG_STATUS_XGXS0_LINK10G |
6545 			NIG_STATUS_XGXS0_LINK_STATUS |
6546 			NIG_STATUS_SERDES0_LINK_STATUS |
6547 			NIG_MASK_MI_INT));
6548 	return rc;
6549 }
6550 
bnx2x_int_link_reset(struct bnx2x_phy * phy,struct link_params * params)6551 static void bnx2x_int_link_reset(struct bnx2x_phy *phy,
6552 				 struct link_params *params)
6553 {
6554 	/* Reset the SerDes/XGXS */
6555 	REG_WR(params->bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR,
6556 	       (0x1ff << (params->port*16)));
6557 }
6558 
bnx2x_common_ext_link_reset(struct bnx2x_phy * phy,struct link_params * params)6559 static void bnx2x_common_ext_link_reset(struct bnx2x_phy *phy,
6560 					struct link_params *params)
6561 {
6562 	struct bnx2x *bp = params->bp;
6563 	u8 gpio_port;
6564 	/* HW reset */
6565 	if (CHIP_IS_E2(bp))
6566 		gpio_port = BP_PATH(bp);
6567 	else
6568 		gpio_port = params->port;
6569 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6570 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6571 		       gpio_port);
6572 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
6573 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6574 		       gpio_port);
6575 	DP(NETIF_MSG_LINK, "reset external PHY\n");
6576 }
6577 
bnx2x_update_link_down(struct link_params * params,struct link_vars * vars)6578 static int bnx2x_update_link_down(struct link_params *params,
6579 				  struct link_vars *vars)
6580 {
6581 	struct bnx2x *bp = params->bp;
6582 	u8 port = params->port;
6583 
6584 	DP(NETIF_MSG_LINK, "Port %x: Link is down\n", port);
6585 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
6586 	vars->phy_flags &= ~PHY_PHYSICAL_LINK_FLAG;
6587 	/* Indicate no mac active */
6588 	vars->mac_type = MAC_TYPE_NONE;
6589 
6590 	/* Update shared memory */
6591 	vars->link_status &= ~LINK_UPDATE_MASK;
6592 	vars->line_speed = 0;
6593 	bnx2x_update_mng(params, vars->link_status);
6594 
6595 	/* Activate nig drain */
6596 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
6597 
6598 	/* Disable emac */
6599 	if (!CHIP_IS_E3(bp))
6600 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6601 
6602 	usleep_range(10000, 20000);
6603 	/* Reset BigMac/Xmac */
6604 	if (CHIP_IS_E1x(bp) ||
6605 	    CHIP_IS_E2(bp))
6606 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
6607 
6608 	if (CHIP_IS_E3(bp)) {
6609 		/* Prevent LPI Generation by chip */
6610 		REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2),
6611 		       0);
6612 		REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 + (params->port << 2),
6613 		       0);
6614 		vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
6615 				      SHMEM_EEE_ACTIVE_BIT);
6616 
6617 		bnx2x_update_mng_eee(params, vars->eee_status);
6618 		bnx2x_set_xmac_rxtx(params, 0);
6619 		bnx2x_set_umac_rxtx(params, 0);
6620 	}
6621 
6622 	return 0;
6623 }
6624 
bnx2x_update_link_up(struct link_params * params,struct link_vars * vars,u8 link_10g)6625 static int bnx2x_update_link_up(struct link_params *params,
6626 				struct link_vars *vars,
6627 				u8 link_10g)
6628 {
6629 	struct bnx2x *bp = params->bp;
6630 	u8 phy_idx, port = params->port;
6631 	int rc = 0;
6632 
6633 	vars->link_status |= (LINK_STATUS_LINK_UP |
6634 			      LINK_STATUS_PHYSICAL_LINK_FLAG);
6635 	vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
6636 
6637 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
6638 		vars->link_status |=
6639 			LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
6640 
6641 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
6642 		vars->link_status |=
6643 			LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
6644 	if (USES_WARPCORE(bp)) {
6645 		if (link_10g) {
6646 			if (bnx2x_xmac_enable(params, vars, 0) ==
6647 			    -ESRCH) {
6648 				DP(NETIF_MSG_LINK, "Found errors on XMAC\n");
6649 				vars->link_up = 0;
6650 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6651 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6652 			}
6653 		} else
6654 			bnx2x_umac_enable(params, vars, 0);
6655 		bnx2x_set_led(params, vars,
6656 			      LED_MODE_OPER, vars->line_speed);
6657 
6658 		if ((vars->eee_status & SHMEM_EEE_ACTIVE_BIT) &&
6659 		    (vars->eee_status & SHMEM_EEE_LPI_REQUESTED_BIT)) {
6660 			DP(NETIF_MSG_LINK, "Enabling LPI assertion\n");
6661 			REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 +
6662 			       (params->port << 2), 1);
6663 			REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 1);
6664 			REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 +
6665 			       (params->port << 2), 0xfc20);
6666 		}
6667 	}
6668 	if ((CHIP_IS_E1x(bp) ||
6669 	     CHIP_IS_E2(bp))) {
6670 		if (link_10g) {
6671 			if (bnx2x_bmac_enable(params, vars, 0, 1) ==
6672 			    -ESRCH) {
6673 				DP(NETIF_MSG_LINK, "Found errors on BMAC\n");
6674 				vars->link_up = 0;
6675 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6676 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6677 			}
6678 
6679 			bnx2x_set_led(params, vars,
6680 				      LED_MODE_OPER, SPEED_10000);
6681 		} else {
6682 			rc = bnx2x_emac_program(params, vars);
6683 			bnx2x_emac_enable(params, vars, 0);
6684 
6685 			/* AN complete? */
6686 			if ((vars->link_status &
6687 			     LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
6688 			    && (!(vars->phy_flags & PHY_SGMII_FLAG)) &&
6689 			    SINGLE_MEDIA_DIRECT(params))
6690 				bnx2x_set_gmii_tx_driver(params);
6691 		}
6692 	}
6693 
6694 	/* PBF - link up */
6695 	if (CHIP_IS_E1x(bp))
6696 		rc |= bnx2x_pbf_update(params, vars->flow_ctrl,
6697 				       vars->line_speed);
6698 
6699 	/* Disable drain */
6700 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 0);
6701 
6702 	/* Update shared memory */
6703 	bnx2x_update_mng(params, vars->link_status);
6704 	bnx2x_update_mng_eee(params, vars->eee_status);
6705 	/* Check remote fault */
6706 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
6707 		if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
6708 			bnx2x_check_half_open_conn(params, vars, 0);
6709 			break;
6710 		}
6711 	}
6712 	msleep(20);
6713 	return rc;
6714 }
6715 /* The bnx2x_link_update function should be called upon link
6716  * interrupt.
6717  * Link is considered up as follows:
6718  * - DIRECT_SINGLE_MEDIA - Only XGXS link (internal link) needs
6719  *   to be up
6720  * - SINGLE_MEDIA - The link between the 577xx and the external
6721  *   phy (XGXS) need to up as well as the external link of the
6722  *   phy (PHY_EXT1)
6723  * - DUAL_MEDIA - The link between the 577xx and the first
6724  *   external phy needs to be up, and at least one of the 2
6725  *   external phy link must be up.
6726  */
bnx2x_link_update(struct link_params * params,struct link_vars * vars)6727 int bnx2x_link_update(struct link_params *params, struct link_vars *vars)
6728 {
6729 	struct bnx2x *bp = params->bp;
6730 	struct link_vars phy_vars[MAX_PHYS];
6731 	u8 port = params->port;
6732 	u8 link_10g_plus, phy_index;
6733 	u8 ext_phy_link_up = 0, cur_link_up;
6734 	int rc = 0;
6735 	u8 is_mi_int = 0;
6736 	u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed;
6737 	u8 active_external_phy = INT_PHY;
6738 	vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG;
6739 	vars->link_status &= ~LINK_UPDATE_MASK;
6740 	for (phy_index = INT_PHY; phy_index < params->num_phys;
6741 	      phy_index++) {
6742 		phy_vars[phy_index].flow_ctrl = 0;
6743 		phy_vars[phy_index].link_status = 0;
6744 		phy_vars[phy_index].line_speed = 0;
6745 		phy_vars[phy_index].duplex = DUPLEX_FULL;
6746 		phy_vars[phy_index].phy_link_up = 0;
6747 		phy_vars[phy_index].link_up = 0;
6748 		phy_vars[phy_index].fault_detected = 0;
6749 		/* different consideration, since vars holds inner state */
6750 		phy_vars[phy_index].eee_status = vars->eee_status;
6751 	}
6752 
6753 	if (USES_WARPCORE(bp))
6754 		bnx2x_set_aer_mmd(params, &params->phy[INT_PHY]);
6755 
6756 	DP(NETIF_MSG_LINK, "port %x, XGXS?%x, int_status 0x%x\n",
6757 		 port, (vars->phy_flags & PHY_XGXS_FLAG),
6758 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6759 
6760 	is_mi_int = (u8)(REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT +
6761 				port*0x18) > 0);
6762 	DP(NETIF_MSG_LINK, "int_mask 0x%x MI_INT %x, SERDES_LINK %x\n",
6763 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6764 		 is_mi_int,
6765 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS + port*0x3c));
6766 
6767 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
6768 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6769 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6770 
6771 	/* Disable emac */
6772 	if (!CHIP_IS_E3(bp))
6773 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6774 
6775 	/* Step 1:
6776 	 * Check external link change only for external phys, and apply
6777 	 * priority selection between them in case the link on both phys
6778 	 * is up. Note that instead of the common vars, a temporary
6779 	 * vars argument is used since each phy may have different link/
6780 	 * speed/duplex result
6781 	 */
6782 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6783 	      phy_index++) {
6784 		struct bnx2x_phy *phy = &params->phy[phy_index];
6785 		if (!phy->read_status)
6786 			continue;
6787 		/* Read link status and params of this ext phy */
6788 		cur_link_up = phy->read_status(phy, params,
6789 					       &phy_vars[phy_index]);
6790 		if (cur_link_up) {
6791 			DP(NETIF_MSG_LINK, "phy in index %d link is up\n",
6792 				   phy_index);
6793 		} else {
6794 			DP(NETIF_MSG_LINK, "phy in index %d link is down\n",
6795 				   phy_index);
6796 			continue;
6797 		}
6798 
6799 		if (!ext_phy_link_up) {
6800 			ext_phy_link_up = 1;
6801 			active_external_phy = phy_index;
6802 		} else {
6803 			switch (bnx2x_phy_selection(params)) {
6804 			case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
6805 			case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
6806 			/* In this option, the first PHY makes sure to pass the
6807 			 * traffic through itself only.
6808 			 * Its not clear how to reset the link on the second phy
6809 			 */
6810 				active_external_phy = EXT_PHY1;
6811 				break;
6812 			case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
6813 			/* In this option, the first PHY makes sure to pass the
6814 			 * traffic through the second PHY.
6815 			 */
6816 				active_external_phy = EXT_PHY2;
6817 				break;
6818 			default:
6819 			/* Link indication on both PHYs with the following cases
6820 			 * is invalid:
6821 			 * - FIRST_PHY means that second phy wasn't initialized,
6822 			 * hence its link is expected to be down
6823 			 * - SECOND_PHY means that first phy should not be able
6824 			 * to link up by itself (using configuration)
6825 			 * - DEFAULT should be overriden during initialiazation
6826 			 */
6827 				DP(NETIF_MSG_LINK, "Invalid link indication"
6828 					   "mpc=0x%x. DISABLING LINK !!!\n",
6829 					   params->multi_phy_config);
6830 				ext_phy_link_up = 0;
6831 				break;
6832 			}
6833 		}
6834 	}
6835 	prev_line_speed = vars->line_speed;
6836 	/* Step 2:
6837 	 * Read the status of the internal phy. In case of
6838 	 * DIRECT_SINGLE_MEDIA board, this link is the external link,
6839 	 * otherwise this is the link between the 577xx and the first
6840 	 * external phy
6841 	 */
6842 	if (params->phy[INT_PHY].read_status)
6843 		params->phy[INT_PHY].read_status(
6844 			&params->phy[INT_PHY],
6845 			params, vars);
6846 	/* The INT_PHY flow control reside in the vars. This include the
6847 	 * case where the speed or flow control are not set to AUTO.
6848 	 * Otherwise, the active external phy flow control result is set
6849 	 * to the vars. The ext_phy_line_speed is needed to check if the
6850 	 * speed is different between the internal phy and external phy.
6851 	 * This case may be result of intermediate link speed change.
6852 	 */
6853 	if (active_external_phy > INT_PHY) {
6854 		vars->flow_ctrl = phy_vars[active_external_phy].flow_ctrl;
6855 		/* Link speed is taken from the XGXS. AN and FC result from
6856 		 * the external phy.
6857 		 */
6858 		vars->link_status |= phy_vars[active_external_phy].link_status;
6859 
6860 		/* if active_external_phy is first PHY and link is up - disable
6861 		 * disable TX on second external PHY
6862 		 */
6863 		if (active_external_phy == EXT_PHY1) {
6864 			if (params->phy[EXT_PHY2].phy_specific_func) {
6865 				DP(NETIF_MSG_LINK,
6866 				   "Disabling TX on EXT_PHY2\n");
6867 				params->phy[EXT_PHY2].phy_specific_func(
6868 					&params->phy[EXT_PHY2],
6869 					params, DISABLE_TX);
6870 			}
6871 		}
6872 
6873 		ext_phy_line_speed = phy_vars[active_external_phy].line_speed;
6874 		vars->duplex = phy_vars[active_external_phy].duplex;
6875 		if (params->phy[active_external_phy].supported &
6876 		    SUPPORTED_FIBRE)
6877 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6878 		else
6879 			vars->link_status &= ~LINK_STATUS_SERDES_LINK;
6880 
6881 		vars->eee_status = phy_vars[active_external_phy].eee_status;
6882 
6883 		DP(NETIF_MSG_LINK, "Active external phy selected: %x\n",
6884 			   active_external_phy);
6885 	}
6886 
6887 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6888 	      phy_index++) {
6889 		if (params->phy[phy_index].flags &
6890 		    FLAGS_REARM_LATCH_SIGNAL) {
6891 			bnx2x_rearm_latch_signal(bp, port,
6892 						 phy_index ==
6893 						 active_external_phy);
6894 			break;
6895 		}
6896 	}
6897 	DP(NETIF_MSG_LINK, "vars->flow_ctrl = 0x%x, vars->link_status = 0x%x,"
6898 		   " ext_phy_line_speed = %d\n", vars->flow_ctrl,
6899 		   vars->link_status, ext_phy_line_speed);
6900 	/* Upon link speed change set the NIG into drain mode. Comes to
6901 	 * deals with possible FIFO glitch due to clk change when speed
6902 	 * is decreased without link down indicator
6903 	 */
6904 
6905 	if (vars->phy_link_up) {
6906 		if (!(SINGLE_MEDIA_DIRECT(params)) && ext_phy_link_up &&
6907 		    (ext_phy_line_speed != vars->line_speed)) {
6908 			DP(NETIF_MSG_LINK, "Internal link speed %d is"
6909 				   " different than the external"
6910 				   " link speed %d\n", vars->line_speed,
6911 				   ext_phy_line_speed);
6912 			vars->phy_link_up = 0;
6913 		} else if (prev_line_speed != vars->line_speed) {
6914 			REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4,
6915 			       0);
6916 			usleep_range(1000, 2000);
6917 		}
6918 	}
6919 
6920 	/* Anything 10 and over uses the bmac */
6921 	link_10g_plus = (vars->line_speed >= SPEED_10000);
6922 
6923 	bnx2x_link_int_ack(params, vars, link_10g_plus);
6924 
6925 	/* In case external phy link is up, and internal link is down
6926 	 * (not initialized yet probably after link initialization, it
6927 	 * needs to be initialized.
6928 	 * Note that after link down-up as result of cable plug, the xgxs
6929 	 * link would probably become up again without the need
6930 	 * initialize it
6931 	 */
6932 	if (!(SINGLE_MEDIA_DIRECT(params))) {
6933 		DP(NETIF_MSG_LINK, "ext_phy_link_up = %d, int_link_up = %d,"
6934 			   " init_preceding = %d\n", ext_phy_link_up,
6935 			   vars->phy_link_up,
6936 			   params->phy[EXT_PHY1].flags &
6937 			   FLAGS_INIT_XGXS_FIRST);
6938 		if (!(params->phy[EXT_PHY1].flags &
6939 		      FLAGS_INIT_XGXS_FIRST)
6940 		    && ext_phy_link_up && !vars->phy_link_up) {
6941 			vars->line_speed = ext_phy_line_speed;
6942 			if (vars->line_speed < SPEED_1000)
6943 				vars->phy_flags |= PHY_SGMII_FLAG;
6944 			else
6945 				vars->phy_flags &= ~PHY_SGMII_FLAG;
6946 
6947 			if (params->phy[INT_PHY].config_init)
6948 				params->phy[INT_PHY].config_init(
6949 					&params->phy[INT_PHY], params,
6950 						vars);
6951 		}
6952 	}
6953 	/* Link is up only if both local phy and external phy (in case of
6954 	 * non-direct board) are up and no fault detected on active PHY.
6955 	 */
6956 	vars->link_up = (vars->phy_link_up &&
6957 			 (ext_phy_link_up ||
6958 			  SINGLE_MEDIA_DIRECT(params)) &&
6959 			 (phy_vars[active_external_phy].fault_detected == 0));
6960 
6961 	/* Update the PFC configuration in case it was changed */
6962 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
6963 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
6964 	else
6965 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
6966 
6967 	if (vars->link_up)
6968 		rc = bnx2x_update_link_up(params, vars, link_10g_plus);
6969 	else
6970 		rc = bnx2x_update_link_down(params, vars);
6971 
6972 	/* Update MCP link status was changed */
6973 	if (params->feature_config_flags & FEATURE_CONFIG_BC_SUPPORTS_AFEX)
6974 		bnx2x_fw_command(bp, DRV_MSG_CODE_LINK_STATUS_CHANGED, 0);
6975 
6976 	return rc;
6977 }
6978 
6979 /*****************************************************************************/
6980 /*			    External Phy section			     */
6981 /*****************************************************************************/
bnx2x_ext_phy_hw_reset(struct bnx2x * bp,u8 port)6982 void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port)
6983 {
6984 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6985 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
6986 	usleep_range(1000, 2000);
6987 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6988 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, port);
6989 }
6990 
bnx2x_save_spirom_version(struct bnx2x * bp,u8 port,u32 spirom_ver,u32 ver_addr)6991 static void bnx2x_save_spirom_version(struct bnx2x *bp, u8 port,
6992 				      u32 spirom_ver, u32 ver_addr)
6993 {
6994 	DP(NETIF_MSG_LINK, "FW version 0x%x:0x%x for port %d\n",
6995 		 (u16)(spirom_ver>>16), (u16)spirom_ver, port);
6996 
6997 	if (ver_addr)
6998 		REG_WR(bp, ver_addr, spirom_ver);
6999 }
7000 
bnx2x_save_bcm_spirom_ver(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)7001 static void bnx2x_save_bcm_spirom_ver(struct bnx2x *bp,
7002 				      struct bnx2x_phy *phy,
7003 				      u8 port)
7004 {
7005 	u16 fw_ver1, fw_ver2;
7006 
7007 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
7008 			MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7009 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
7010 			MDIO_PMA_REG_ROM_VER2, &fw_ver2);
7011 	bnx2x_save_spirom_version(bp, port, (u32)(fw_ver1<<16 | fw_ver2),
7012 				  phy->ver_addr);
7013 }
7014 
bnx2x_ext_phy_10G_an_resolve(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_vars * vars)7015 static void bnx2x_ext_phy_10G_an_resolve(struct bnx2x *bp,
7016 				       struct bnx2x_phy *phy,
7017 				       struct link_vars *vars)
7018 {
7019 	u16 val;
7020 	bnx2x_cl45_read(bp, phy,
7021 			MDIO_AN_DEVAD,
7022 			MDIO_AN_REG_STATUS, &val);
7023 	bnx2x_cl45_read(bp, phy,
7024 			MDIO_AN_DEVAD,
7025 			MDIO_AN_REG_STATUS, &val);
7026 	if (val & (1<<5))
7027 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
7028 	if ((val & (1<<0)) == 0)
7029 		vars->link_status |= LINK_STATUS_PARALLEL_DETECTION_USED;
7030 }
7031 
7032 /******************************************************************/
7033 /*		common BCM8073/BCM8727 PHY SECTION		  */
7034 /******************************************************************/
bnx2x_8073_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7035 static void bnx2x_8073_resolve_fc(struct bnx2x_phy *phy,
7036 				  struct link_params *params,
7037 				  struct link_vars *vars)
7038 {
7039 	struct bnx2x *bp = params->bp;
7040 	if (phy->req_line_speed == SPEED_10 ||
7041 	    phy->req_line_speed == SPEED_100) {
7042 		vars->flow_ctrl = phy->req_flow_ctrl;
7043 		return;
7044 	}
7045 
7046 	if (bnx2x_ext_phy_resolve_fc(phy, params, vars) &&
7047 	    (vars->flow_ctrl == BNX2X_FLOW_CTRL_NONE)) {
7048 		u16 pause_result;
7049 		u16 ld_pause;		/* local */
7050 		u16 lp_pause;		/* link partner */
7051 		bnx2x_cl45_read(bp, phy,
7052 				MDIO_AN_DEVAD,
7053 				MDIO_AN_REG_CL37_FC_LD, &ld_pause);
7054 
7055 		bnx2x_cl45_read(bp, phy,
7056 				MDIO_AN_DEVAD,
7057 				MDIO_AN_REG_CL37_FC_LP, &lp_pause);
7058 		pause_result = (ld_pause &
7059 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 5;
7060 		pause_result |= (lp_pause &
7061 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 7;
7062 
7063 		bnx2x_pause_resolve(vars, pause_result);
7064 		DP(NETIF_MSG_LINK, "Ext PHY CL37 pause result 0x%x\n",
7065 			   pause_result);
7066 	}
7067 }
bnx2x_8073_8727_external_rom_boot(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)7068 static int bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
7069 					     struct bnx2x_phy *phy,
7070 					     u8 port)
7071 {
7072 	u32 count = 0;
7073 	u16 fw_ver1, fw_msgout;
7074 	int rc = 0;
7075 
7076 	/* Boot port from external ROM  */
7077 	/* EDC grst */
7078 	bnx2x_cl45_write(bp, phy,
7079 			 MDIO_PMA_DEVAD,
7080 			 MDIO_PMA_REG_GEN_CTRL,
7081 			 0x0001);
7082 
7083 	/* Ucode reboot and rst */
7084 	bnx2x_cl45_write(bp, phy,
7085 			 MDIO_PMA_DEVAD,
7086 			 MDIO_PMA_REG_GEN_CTRL,
7087 			 0x008c);
7088 
7089 	bnx2x_cl45_write(bp, phy,
7090 			 MDIO_PMA_DEVAD,
7091 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
7092 
7093 	/* Reset internal microprocessor */
7094 	bnx2x_cl45_write(bp, phy,
7095 			 MDIO_PMA_DEVAD,
7096 			 MDIO_PMA_REG_GEN_CTRL,
7097 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
7098 
7099 	/* Release srst bit */
7100 	bnx2x_cl45_write(bp, phy,
7101 			 MDIO_PMA_DEVAD,
7102 			 MDIO_PMA_REG_GEN_CTRL,
7103 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
7104 
7105 	/* Delay 100ms per the PHY specifications */
7106 	msleep(100);
7107 
7108 	/* 8073 sometimes taking longer to download */
7109 	do {
7110 		count++;
7111 		if (count > 300) {
7112 			DP(NETIF_MSG_LINK,
7113 				 "bnx2x_8073_8727_external_rom_boot port %x:"
7114 				 "Download failed. fw version = 0x%x\n",
7115 				 port, fw_ver1);
7116 			rc = -EINVAL;
7117 			break;
7118 		}
7119 
7120 		bnx2x_cl45_read(bp, phy,
7121 				MDIO_PMA_DEVAD,
7122 				MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7123 		bnx2x_cl45_read(bp, phy,
7124 				MDIO_PMA_DEVAD,
7125 				MDIO_PMA_REG_M8051_MSGOUT_REG, &fw_msgout);
7126 
7127 		usleep_range(1000, 2000);
7128 	} while (fw_ver1 == 0 || fw_ver1 == 0x4321 ||
7129 			((fw_msgout & 0xff) != 0x03 && (phy->type ==
7130 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073)));
7131 
7132 	/* Clear ser_boot_ctl bit */
7133 	bnx2x_cl45_write(bp, phy,
7134 			 MDIO_PMA_DEVAD,
7135 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
7136 	bnx2x_save_bcm_spirom_ver(bp, phy, port);
7137 
7138 	DP(NETIF_MSG_LINK,
7139 		 "bnx2x_8073_8727_external_rom_boot port %x:"
7140 		 "Download complete. fw version = 0x%x\n",
7141 		 port, fw_ver1);
7142 
7143 	return rc;
7144 }
7145 
7146 /******************************************************************/
7147 /*			BCM8073 PHY SECTION			  */
7148 /******************************************************************/
bnx2x_8073_is_snr_needed(struct bnx2x * bp,struct bnx2x_phy * phy)7149 static int bnx2x_8073_is_snr_needed(struct bnx2x *bp, struct bnx2x_phy *phy)
7150 {
7151 	/* This is only required for 8073A1, version 102 only */
7152 	u16 val;
7153 
7154 	/* Read 8073 HW revision*/
7155 	bnx2x_cl45_read(bp, phy,
7156 			MDIO_PMA_DEVAD,
7157 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7158 
7159 	if (val != 1) {
7160 		/* No need to workaround in 8073 A1 */
7161 		return 0;
7162 	}
7163 
7164 	bnx2x_cl45_read(bp, phy,
7165 			MDIO_PMA_DEVAD,
7166 			MDIO_PMA_REG_ROM_VER2, &val);
7167 
7168 	/* SNR should be applied only for version 0x102 */
7169 	if (val != 0x102)
7170 		return 0;
7171 
7172 	return 1;
7173 }
7174 
bnx2x_8073_xaui_wa(struct bnx2x * bp,struct bnx2x_phy * phy)7175 static int bnx2x_8073_xaui_wa(struct bnx2x *bp, struct bnx2x_phy *phy)
7176 {
7177 	u16 val, cnt, cnt1 ;
7178 
7179 	bnx2x_cl45_read(bp, phy,
7180 			MDIO_PMA_DEVAD,
7181 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7182 
7183 	if (val > 0) {
7184 		/* No need to workaround in 8073 A1 */
7185 		return 0;
7186 	}
7187 	/* XAUI workaround in 8073 A0: */
7188 
7189 	/* After loading the boot ROM and restarting Autoneg, poll
7190 	 * Dev1, Reg $C820:
7191 	 */
7192 
7193 	for (cnt = 0; cnt < 1000; cnt++) {
7194 		bnx2x_cl45_read(bp, phy,
7195 				MDIO_PMA_DEVAD,
7196 				MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7197 				&val);
7198 		  /* If bit [14] = 0 or bit [13] = 0, continue on with
7199 		   * system initialization (XAUI work-around not required, as
7200 		   * these bits indicate 2.5G or 1G link up).
7201 		   */
7202 		if (!(val & (1<<14)) || !(val & (1<<13))) {
7203 			DP(NETIF_MSG_LINK, "XAUI work-around not required\n");
7204 			return 0;
7205 		} else if (!(val & (1<<15))) {
7206 			DP(NETIF_MSG_LINK, "bit 15 went off\n");
7207 			/* If bit 15 is 0, then poll Dev1, Reg $C841 until it's
7208 			 * MSB (bit15) goes to 1 (indicating that the XAUI
7209 			 * workaround has completed), then continue on with
7210 			 * system initialization.
7211 			 */
7212 			for (cnt1 = 0; cnt1 < 1000; cnt1++) {
7213 				bnx2x_cl45_read(bp, phy,
7214 					MDIO_PMA_DEVAD,
7215 					MDIO_PMA_REG_8073_XAUI_WA, &val);
7216 				if (val & (1<<15)) {
7217 					DP(NETIF_MSG_LINK,
7218 					  "XAUI workaround has completed\n");
7219 					return 0;
7220 				 }
7221 				 usleep_range(3000, 6000);
7222 			}
7223 			break;
7224 		}
7225 		usleep_range(3000, 6000);
7226 	}
7227 	DP(NETIF_MSG_LINK, "Warning: XAUI work-around timeout !!!\n");
7228 	return -EINVAL;
7229 }
7230 
bnx2x_807x_force_10G(struct bnx2x * bp,struct bnx2x_phy * phy)7231 static void bnx2x_807x_force_10G(struct bnx2x *bp, struct bnx2x_phy *phy)
7232 {
7233 	/* Force KR or KX */
7234 	bnx2x_cl45_write(bp, phy,
7235 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
7236 	bnx2x_cl45_write(bp, phy,
7237 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0x000b);
7238 	bnx2x_cl45_write(bp, phy,
7239 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0000);
7240 	bnx2x_cl45_write(bp, phy,
7241 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
7242 }
7243 
bnx2x_8073_set_pause_cl37(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)7244 static void bnx2x_8073_set_pause_cl37(struct link_params *params,
7245 				      struct bnx2x_phy *phy,
7246 				      struct link_vars *vars)
7247 {
7248 	u16 cl37_val;
7249 	struct bnx2x *bp = params->bp;
7250 	bnx2x_cl45_read(bp, phy,
7251 			MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &cl37_val);
7252 
7253 	cl37_val &= ~MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7254 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
7255 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
7256 	if ((vars->ieee_fc &
7257 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) ==
7258 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) {
7259 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC;
7260 	}
7261 	if ((vars->ieee_fc &
7262 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
7263 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
7264 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
7265 	}
7266 	if ((vars->ieee_fc &
7267 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
7268 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
7269 		cl37_val |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7270 	}
7271 	DP(NETIF_MSG_LINK,
7272 		 "Ext phy AN advertize cl37 0x%x\n", cl37_val);
7273 
7274 	bnx2x_cl45_write(bp, phy,
7275 			 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, cl37_val);
7276 	msleep(500);
7277 }
7278 
bnx2x_8073_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)7279 static void bnx2x_8073_specific_func(struct bnx2x_phy *phy,
7280 				     struct link_params *params,
7281 				     u32 action)
7282 {
7283 	struct bnx2x *bp = params->bp;
7284 	switch (action) {
7285 	case PHY_INIT:
7286 		/* Enable LASI */
7287 		bnx2x_cl45_write(bp, phy,
7288 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
7289 		bnx2x_cl45_write(bp, phy,
7290 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
7291 		break;
7292 	}
7293 }
7294 
bnx2x_8073_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7295 static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
7296 				  struct link_params *params,
7297 				  struct link_vars *vars)
7298 {
7299 	struct bnx2x *bp = params->bp;
7300 	u16 val = 0, tmp1;
7301 	u8 gpio_port;
7302 	DP(NETIF_MSG_LINK, "Init 8073\n");
7303 
7304 	if (CHIP_IS_E2(bp))
7305 		gpio_port = BP_PATH(bp);
7306 	else
7307 		gpio_port = params->port;
7308 	/* Restore normal power mode*/
7309 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7310 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7311 
7312 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
7313 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7314 
7315 	bnx2x_8073_specific_func(phy, params, PHY_INIT);
7316 	bnx2x_8073_set_pause_cl37(params, phy, vars);
7317 
7318 	bnx2x_cl45_read(bp, phy,
7319 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
7320 
7321 	bnx2x_cl45_read(bp, phy,
7322 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
7323 
7324 	DP(NETIF_MSG_LINK, "Before rom RX_ALARM(port1): 0x%x\n", tmp1);
7325 
7326 	/* Swap polarity if required - Must be done only in non-1G mode */
7327 	if (params->lane_config & PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7328 		/* Configure the 8073 to swap _P and _N of the KR lines */
7329 		DP(NETIF_MSG_LINK, "Swapping polarity for the 8073\n");
7330 		/* 10G Rx/Tx and 1G Tx signal polarity swap */
7331 		bnx2x_cl45_read(bp, phy,
7332 				MDIO_PMA_DEVAD,
7333 				MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL, &val);
7334 		bnx2x_cl45_write(bp, phy,
7335 				 MDIO_PMA_DEVAD,
7336 				 MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL,
7337 				 (val | (3<<9)));
7338 	}
7339 
7340 
7341 	/* Enable CL37 BAM */
7342 	if (REG_RD(bp, params->shmem_base +
7343 			 offsetof(struct shmem_region, dev_info.
7344 				  port_hw_config[params->port].default_cfg)) &
7345 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
7346 
7347 		bnx2x_cl45_read(bp, phy,
7348 				MDIO_AN_DEVAD,
7349 				MDIO_AN_REG_8073_BAM, &val);
7350 		bnx2x_cl45_write(bp, phy,
7351 				 MDIO_AN_DEVAD,
7352 				 MDIO_AN_REG_8073_BAM, val | 1);
7353 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
7354 	}
7355 	if (params->loopback_mode == LOOPBACK_EXT) {
7356 		bnx2x_807x_force_10G(bp, phy);
7357 		DP(NETIF_MSG_LINK, "Forced speed 10G on 807X\n");
7358 		return 0;
7359 	} else {
7360 		bnx2x_cl45_write(bp, phy,
7361 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
7362 	}
7363 	if (phy->req_line_speed != SPEED_AUTO_NEG) {
7364 		if (phy->req_line_speed == SPEED_10000) {
7365 			val = (1<<7);
7366 		} else if (phy->req_line_speed ==  SPEED_2500) {
7367 			val = (1<<5);
7368 			/* Note that 2.5G works only when used with 1G
7369 			 * advertisement
7370 			 */
7371 		} else
7372 			val = (1<<5);
7373 	} else {
7374 		val = 0;
7375 		if (phy->speed_cap_mask &
7376 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
7377 			val |= (1<<7);
7378 
7379 		/* Note that 2.5G works only when used with 1G advertisement */
7380 		if (phy->speed_cap_mask &
7381 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_1G |
7382 			 PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
7383 			val |= (1<<5);
7384 		DP(NETIF_MSG_LINK, "807x autoneg val = 0x%x\n", val);
7385 	}
7386 
7387 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV, val);
7388 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, &tmp1);
7389 
7390 	if (((phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G) &&
7391 	     (phy->req_line_speed == SPEED_AUTO_NEG)) ||
7392 	    (phy->req_line_speed == SPEED_2500)) {
7393 		u16 phy_ver;
7394 		/* Allow 2.5G for A1 and above */
7395 		bnx2x_cl45_read(bp, phy,
7396 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_CHIP_REV,
7397 				&phy_ver);
7398 		DP(NETIF_MSG_LINK, "Add 2.5G\n");
7399 		if (phy_ver > 0)
7400 			tmp1 |= 1;
7401 		else
7402 			tmp1 &= 0xfffe;
7403 	} else {
7404 		DP(NETIF_MSG_LINK, "Disable 2.5G\n");
7405 		tmp1 &= 0xfffe;
7406 	}
7407 
7408 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, tmp1);
7409 	/* Add support for CL37 (passive mode) II */
7410 
7411 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &tmp1);
7412 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD,
7413 			 (tmp1 | ((phy->req_duplex == DUPLEX_FULL) ?
7414 				  0x20 : 0x40)));
7415 
7416 	/* Add support for CL37 (passive mode) III */
7417 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
7418 
7419 	/* The SNR will improve about 2db by changing BW and FEE main
7420 	 * tap. Rest commands are executed after link is up
7421 	 * Change FFE main cursor to 5 in EDC register
7422 	 */
7423 	if (bnx2x_8073_is_snr_needed(bp, phy))
7424 		bnx2x_cl45_write(bp, phy,
7425 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_EDC_FFE_MAIN,
7426 				 0xFB0C);
7427 
7428 	/* Enable FEC (Forware Error Correction) Request in the AN */
7429 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, &tmp1);
7430 	tmp1 |= (1<<15);
7431 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, tmp1);
7432 
7433 	bnx2x_ext_phy_set_pause(params, phy, vars);
7434 
7435 	/* Restart autoneg */
7436 	msleep(500);
7437 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
7438 	DP(NETIF_MSG_LINK, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
7439 		   ((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
7440 	return 0;
7441 }
7442 
bnx2x_8073_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7443 static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
7444 				 struct link_params *params,
7445 				 struct link_vars *vars)
7446 {
7447 	struct bnx2x *bp = params->bp;
7448 	u8 link_up = 0;
7449 	u16 val1, val2;
7450 	u16 link_status = 0;
7451 	u16 an1000_status = 0;
7452 
7453 	bnx2x_cl45_read(bp, phy,
7454 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
7455 
7456 	DP(NETIF_MSG_LINK, "8703 LASI status 0x%x\n", val1);
7457 
7458 	/* Clear the interrupt LASI status register */
7459 	bnx2x_cl45_read(bp, phy,
7460 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7461 	bnx2x_cl45_read(bp, phy,
7462 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val1);
7463 	DP(NETIF_MSG_LINK, "807x PCS status 0x%x->0x%x\n", val2, val1);
7464 	/* Clear MSG-OUT */
7465 	bnx2x_cl45_read(bp, phy,
7466 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
7467 
7468 	/* Check the LASI */
7469 	bnx2x_cl45_read(bp, phy,
7470 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
7471 
7472 	DP(NETIF_MSG_LINK, "KR 0x9003 0x%x\n", val2);
7473 
7474 	/* Check the link status */
7475 	bnx2x_cl45_read(bp, phy,
7476 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7477 	DP(NETIF_MSG_LINK, "KR PCS status 0x%x\n", val2);
7478 
7479 	bnx2x_cl45_read(bp, phy,
7480 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7481 	bnx2x_cl45_read(bp, phy,
7482 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7483 	link_up = ((val1 & 4) == 4);
7484 	DP(NETIF_MSG_LINK, "PMA_REG_STATUS=0x%x\n", val1);
7485 
7486 	if (link_up &&
7487 	     ((phy->req_line_speed != SPEED_10000))) {
7488 		if (bnx2x_8073_xaui_wa(bp, phy) != 0)
7489 			return 0;
7490 	}
7491 	bnx2x_cl45_read(bp, phy,
7492 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7493 	bnx2x_cl45_read(bp, phy,
7494 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7495 
7496 	/* Check the link status on 1.1.2 */
7497 	bnx2x_cl45_read(bp, phy,
7498 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7499 	bnx2x_cl45_read(bp, phy,
7500 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7501 	DP(NETIF_MSG_LINK, "KR PMA status 0x%x->0x%x,"
7502 		   "an_link_status=0x%x\n", val2, val1, an1000_status);
7503 
7504 	link_up = (((val1 & 4) == 4) || (an1000_status & (1<<1)));
7505 	if (link_up && bnx2x_8073_is_snr_needed(bp, phy)) {
7506 		/* The SNR will improve about 2dbby changing the BW and FEE main
7507 		 * tap. The 1st write to change FFE main tap is set before
7508 		 * restart AN. Change PLL Bandwidth in EDC register
7509 		 */
7510 		bnx2x_cl45_write(bp, phy,
7511 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PLL_BANDWIDTH,
7512 				 0x26BC);
7513 
7514 		/* Change CDR Bandwidth in EDC register */
7515 		bnx2x_cl45_write(bp, phy,
7516 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CDR_BANDWIDTH,
7517 				 0x0333);
7518 	}
7519 	bnx2x_cl45_read(bp, phy,
7520 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7521 			&link_status);
7522 
7523 	/* Bits 0..2 --> speed detected, bits 13..15--> link is down */
7524 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
7525 		link_up = 1;
7526 		vars->line_speed = SPEED_10000;
7527 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
7528 			   params->port);
7529 	} else if ((link_status & (1<<1)) && (!(link_status & (1<<14)))) {
7530 		link_up = 1;
7531 		vars->line_speed = SPEED_2500;
7532 		DP(NETIF_MSG_LINK, "port %x: External link up in 2.5G\n",
7533 			   params->port);
7534 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
7535 		link_up = 1;
7536 		vars->line_speed = SPEED_1000;
7537 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
7538 			   params->port);
7539 	} else {
7540 		link_up = 0;
7541 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
7542 			   params->port);
7543 	}
7544 
7545 	if (link_up) {
7546 		/* Swap polarity if required */
7547 		if (params->lane_config &
7548 		    PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7549 			/* Configure the 8073 to swap P and N of the KR lines */
7550 			bnx2x_cl45_read(bp, phy,
7551 					MDIO_XS_DEVAD,
7552 					MDIO_XS_REG_8073_RX_CTRL_PCIE, &val1);
7553 			/* Set bit 3 to invert Rx in 1G mode and clear this bit
7554 			 * when it`s in 10G mode.
7555 			 */
7556 			if (vars->line_speed == SPEED_1000) {
7557 				DP(NETIF_MSG_LINK, "Swapping 1G polarity for"
7558 					      "the 8073\n");
7559 				val1 |= (1<<3);
7560 			} else
7561 				val1 &= ~(1<<3);
7562 
7563 			bnx2x_cl45_write(bp, phy,
7564 					 MDIO_XS_DEVAD,
7565 					 MDIO_XS_REG_8073_RX_CTRL_PCIE,
7566 					 val1);
7567 		}
7568 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
7569 		bnx2x_8073_resolve_fc(phy, params, vars);
7570 		vars->duplex = DUPLEX_FULL;
7571 	}
7572 
7573 	if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
7574 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
7575 				MDIO_AN_REG_LP_AUTO_NEG2, &val1);
7576 
7577 		if (val1 & (1<<5))
7578 			vars->link_status |=
7579 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
7580 		if (val1 & (1<<7))
7581 			vars->link_status |=
7582 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
7583 	}
7584 
7585 	return link_up;
7586 }
7587 
bnx2x_8073_link_reset(struct bnx2x_phy * phy,struct link_params * params)7588 static void bnx2x_8073_link_reset(struct bnx2x_phy *phy,
7589 				  struct link_params *params)
7590 {
7591 	struct bnx2x *bp = params->bp;
7592 	u8 gpio_port;
7593 	if (CHIP_IS_E2(bp))
7594 		gpio_port = BP_PATH(bp);
7595 	else
7596 		gpio_port = params->port;
7597 	DP(NETIF_MSG_LINK, "Setting 8073 port %d into low power mode\n",
7598 	   gpio_port);
7599 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7600 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
7601 		       gpio_port);
7602 }
7603 
7604 /******************************************************************/
7605 /*			BCM8705 PHY SECTION			  */
7606 /******************************************************************/
bnx2x_8705_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7607 static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
7608 				  struct link_params *params,
7609 				  struct link_vars *vars)
7610 {
7611 	struct bnx2x *bp = params->bp;
7612 	DP(NETIF_MSG_LINK, "init 8705\n");
7613 	/* Restore normal power mode*/
7614 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7615 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
7616 	/* HW reset */
7617 	bnx2x_ext_phy_hw_reset(bp, params->port);
7618 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
7619 	bnx2x_wait_reset_complete(bp, phy, params);
7620 
7621 	bnx2x_cl45_write(bp, phy,
7622 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_MISC_CTRL, 0x8288);
7623 	bnx2x_cl45_write(bp, phy,
7624 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, 0x7fbf);
7625 	bnx2x_cl45_write(bp, phy,
7626 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CMU_PLL_BYPASS, 0x0100);
7627 	bnx2x_cl45_write(bp, phy,
7628 			 MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
7629 	/* BCM8705 doesn't have microcode, hence the 0 */
7630 	bnx2x_save_spirom_version(bp, params->port, params->shmem_base, 0);
7631 	return 0;
7632 }
7633 
bnx2x_8705_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7634 static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy,
7635 				 struct link_params *params,
7636 				 struct link_vars *vars)
7637 {
7638 	u8 link_up = 0;
7639 	u16 val1, rx_sd;
7640 	struct bnx2x *bp = params->bp;
7641 	DP(NETIF_MSG_LINK, "read status 8705\n");
7642 	bnx2x_cl45_read(bp, phy,
7643 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7644 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7645 
7646 	bnx2x_cl45_read(bp, phy,
7647 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7648 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7649 
7650 	bnx2x_cl45_read(bp, phy,
7651 		      MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
7652 
7653 	bnx2x_cl45_read(bp, phy,
7654 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7655 	bnx2x_cl45_read(bp, phy,
7656 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7657 
7658 	DP(NETIF_MSG_LINK, "8705 1.c809 val=0x%x\n", val1);
7659 	link_up = ((rx_sd & 0x1) && (val1 & (1<<9)) && ((val1 & (1<<8)) == 0));
7660 	if (link_up) {
7661 		vars->line_speed = SPEED_10000;
7662 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
7663 	}
7664 	return link_up;
7665 }
7666 
7667 /******************************************************************/
7668 /*			SFP+ module Section			  */
7669 /******************************************************************/
bnx2x_set_disable_pmd_transmit(struct link_params * params,struct bnx2x_phy * phy,u8 pmd_dis)7670 static void bnx2x_set_disable_pmd_transmit(struct link_params *params,
7671 					   struct bnx2x_phy *phy,
7672 					   u8 pmd_dis)
7673 {
7674 	struct bnx2x *bp = params->bp;
7675 	/* Disable transmitter only for bootcodes which can enable it afterwards
7676 	 * (for D3 link)
7677 	 */
7678 	if (pmd_dis) {
7679 		if (params->feature_config_flags &
7680 		     FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED)
7681 			DP(NETIF_MSG_LINK, "Disabling PMD transmitter\n");
7682 		else {
7683 			DP(NETIF_MSG_LINK, "NOT disabling PMD transmitter\n");
7684 			return;
7685 		}
7686 	} else
7687 		DP(NETIF_MSG_LINK, "Enabling PMD transmitter\n");
7688 	bnx2x_cl45_write(bp, phy,
7689 			 MDIO_PMA_DEVAD,
7690 			 MDIO_PMA_REG_TX_DISABLE, pmd_dis);
7691 }
7692 
bnx2x_get_gpio_port(struct link_params * params)7693 static u8 bnx2x_get_gpio_port(struct link_params *params)
7694 {
7695 	u8 gpio_port;
7696 	u32 swap_val, swap_override;
7697 	struct bnx2x *bp = params->bp;
7698 	if (CHIP_IS_E2(bp))
7699 		gpio_port = BP_PATH(bp);
7700 	else
7701 		gpio_port = params->port;
7702 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
7703 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
7704 	return gpio_port ^ (swap_val && swap_override);
7705 }
7706 
bnx2x_sfp_e1e2_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7707 static void bnx2x_sfp_e1e2_set_transmitter(struct link_params *params,
7708 					   struct bnx2x_phy *phy,
7709 					   u8 tx_en)
7710 {
7711 	u16 val;
7712 	u8 port = params->port;
7713 	struct bnx2x *bp = params->bp;
7714 	u32 tx_en_mode;
7715 
7716 	/* Disable/Enable transmitter ( TX laser of the SFP+ module.)*/
7717 	tx_en_mode = REG_RD(bp, params->shmem_base +
7718 			    offsetof(struct shmem_region,
7719 				     dev_info.port_hw_config[port].sfp_ctrl)) &
7720 		PORT_HW_CFG_TX_LASER_MASK;
7721 	DP(NETIF_MSG_LINK, "Setting transmitter tx_en=%x for port %x "
7722 			   "mode = %x\n", tx_en, port, tx_en_mode);
7723 	switch (tx_en_mode) {
7724 	case PORT_HW_CFG_TX_LASER_MDIO:
7725 
7726 		bnx2x_cl45_read(bp, phy,
7727 				MDIO_PMA_DEVAD,
7728 				MDIO_PMA_REG_PHY_IDENTIFIER,
7729 				&val);
7730 
7731 		if (tx_en)
7732 			val &= ~(1<<15);
7733 		else
7734 			val |= (1<<15);
7735 
7736 		bnx2x_cl45_write(bp, phy,
7737 				 MDIO_PMA_DEVAD,
7738 				 MDIO_PMA_REG_PHY_IDENTIFIER,
7739 				 val);
7740 	break;
7741 	case PORT_HW_CFG_TX_LASER_GPIO0:
7742 	case PORT_HW_CFG_TX_LASER_GPIO1:
7743 	case PORT_HW_CFG_TX_LASER_GPIO2:
7744 	case PORT_HW_CFG_TX_LASER_GPIO3:
7745 	{
7746 		u16 gpio_pin;
7747 		u8 gpio_port, gpio_mode;
7748 		if (tx_en)
7749 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_HIGH;
7750 		else
7751 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_LOW;
7752 
7753 		gpio_pin = tx_en_mode - PORT_HW_CFG_TX_LASER_GPIO0;
7754 		gpio_port = bnx2x_get_gpio_port(params);
7755 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
7756 		break;
7757 	}
7758 	default:
7759 		DP(NETIF_MSG_LINK, "Invalid TX_LASER_MDIO 0x%x\n", tx_en_mode);
7760 		break;
7761 	}
7762 }
7763 
bnx2x_sfp_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7764 static void bnx2x_sfp_set_transmitter(struct link_params *params,
7765 				      struct bnx2x_phy *phy,
7766 				      u8 tx_en)
7767 {
7768 	struct bnx2x *bp = params->bp;
7769 	DP(NETIF_MSG_LINK, "Setting SFP+ transmitter to %d\n", tx_en);
7770 	if (CHIP_IS_E3(bp))
7771 		bnx2x_sfp_e3_set_transmitter(params, phy, tx_en);
7772 	else
7773 		bnx2x_sfp_e1e2_set_transmitter(params, phy, tx_en);
7774 }
7775 
bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7776 static int bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7777 					     struct link_params *params,
7778 					     u8 dev_addr, u16 addr, u8 byte_cnt,
7779 					     u8 *o_buf, u8 is_init)
7780 {
7781 	struct bnx2x *bp = params->bp;
7782 	u16 val = 0;
7783 	u16 i;
7784 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7785 		DP(NETIF_MSG_LINK,
7786 		   "Reading from eeprom is limited to 0xf\n");
7787 		return -EINVAL;
7788 	}
7789 	/* Set the read command byte count */
7790 	bnx2x_cl45_write(bp, phy,
7791 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
7792 			 (byte_cnt | (dev_addr << 8)));
7793 
7794 	/* Set the read command address */
7795 	bnx2x_cl45_write(bp, phy,
7796 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
7797 			 addr);
7798 
7799 	/* Activate read command */
7800 	bnx2x_cl45_write(bp, phy,
7801 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7802 			 0x2c0f);
7803 
7804 	/* Wait up to 500us for command complete status */
7805 	for (i = 0; i < 100; i++) {
7806 		bnx2x_cl45_read(bp, phy,
7807 				MDIO_PMA_DEVAD,
7808 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7809 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7810 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
7811 			break;
7812 		udelay(5);
7813 	}
7814 
7815 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
7816 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
7817 		DP(NETIF_MSG_LINK,
7818 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
7819 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
7820 		return -EINVAL;
7821 	}
7822 
7823 	/* Read the buffer */
7824 	for (i = 0; i < byte_cnt; i++) {
7825 		bnx2x_cl45_read(bp, phy,
7826 				MDIO_PMA_DEVAD,
7827 				MDIO_PMA_REG_8726_TWO_WIRE_DATA_BUF + i, &val);
7828 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8726_TWO_WIRE_DATA_MASK);
7829 	}
7830 
7831 	for (i = 0; i < 100; i++) {
7832 		bnx2x_cl45_read(bp, phy,
7833 				MDIO_PMA_DEVAD,
7834 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7835 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7836 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
7837 			return 0;
7838 		usleep_range(1000, 2000);
7839 	}
7840 	return -EINVAL;
7841 }
7842 
bnx2x_warpcore_power_module(struct link_params * params,u8 power)7843 static void bnx2x_warpcore_power_module(struct link_params *params,
7844 					u8 power)
7845 {
7846 	u32 pin_cfg;
7847 	struct bnx2x *bp = params->bp;
7848 
7849 	pin_cfg = (REG_RD(bp, params->shmem_base +
7850 			  offsetof(struct shmem_region,
7851 			dev_info.port_hw_config[params->port].e3_sfp_ctrl)) &
7852 			PORT_HW_CFG_E3_PWR_DIS_MASK) >>
7853 			PORT_HW_CFG_E3_PWR_DIS_SHIFT;
7854 
7855 	if (pin_cfg == PIN_CFG_NA)
7856 		return;
7857 	DP(NETIF_MSG_LINK, "Setting SFP+ module power to %d using pin cfg %d\n",
7858 		       power, pin_cfg);
7859 	/* Low ==> corresponding SFP+ module is powered
7860 	 * high ==> the SFP+ module is powered down
7861 	 */
7862 	bnx2x_set_cfg_pin(bp, pin_cfg, power ^ 1);
7863 }
bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7864 static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7865 						 struct link_params *params,
7866 						 u8 dev_addr,
7867 						 u16 addr, u8 byte_cnt,
7868 						 u8 *o_buf, u8 is_init)
7869 {
7870 	int rc = 0;
7871 	u8 i, j = 0, cnt = 0;
7872 	u32 data_array[4];
7873 	u16 addr32;
7874 	struct bnx2x *bp = params->bp;
7875 
7876 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7877 		DP(NETIF_MSG_LINK,
7878 		   "Reading from eeprom is limited to 16 bytes\n");
7879 		return -EINVAL;
7880 	}
7881 
7882 	/* 4 byte aligned address */
7883 	addr32 = addr & (~0x3);
7884 	do {
7885 		if ((!is_init) && (cnt == I2C_WA_PWR_ITER)) {
7886 			bnx2x_warpcore_power_module(params, 0);
7887 			/* Note that 100us are not enough here */
7888 			usleep_range(1000, 2000);
7889 			bnx2x_warpcore_power_module(params, 1);
7890 		}
7891 		rc = bnx2x_bsc_read(params, phy, dev_addr, addr32, 0, byte_cnt,
7892 				    data_array);
7893 	} while ((rc != 0) && (++cnt < I2C_WA_RETRY_CNT));
7894 
7895 	if (rc == 0) {
7896 		for (i = (addr - addr32); i < byte_cnt + (addr - addr32); i++) {
7897 			o_buf[j] = *((u8 *)data_array + i);
7898 			j++;
7899 		}
7900 	}
7901 
7902 	return rc;
7903 }
7904 
bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)7905 static int bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7906 					     struct link_params *params,
7907 					     u8 dev_addr, u16 addr, u8 byte_cnt,
7908 					     u8 *o_buf, u8 is_init)
7909 {
7910 	struct bnx2x *bp = params->bp;
7911 	u16 val, i;
7912 
7913 	if (byte_cnt > SFP_EEPROM_PAGE_SIZE) {
7914 		DP(NETIF_MSG_LINK,
7915 		   "Reading from eeprom is limited to 0xf\n");
7916 		return -EINVAL;
7917 	}
7918 
7919 	/* Set 2-wire transfer rate of SFP+ module EEPROM
7920 	 * to 100Khz since some DACs(direct attached cables) do
7921 	 * not work at 400Khz.
7922 	 */
7923 	bnx2x_cl45_write(bp, phy,
7924 			 MDIO_PMA_DEVAD,
7925 			 MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
7926 			 ((dev_addr << 8) | 1));
7927 
7928 	/* Need to read from 1.8000 to clear it */
7929 	bnx2x_cl45_read(bp, phy,
7930 			MDIO_PMA_DEVAD,
7931 			MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7932 			&val);
7933 
7934 	/* Set the read command byte count */
7935 	bnx2x_cl45_write(bp, phy,
7936 			 MDIO_PMA_DEVAD,
7937 			 MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
7938 			 ((byte_cnt < 2) ? 2 : byte_cnt));
7939 
7940 	/* Set the read command address */
7941 	bnx2x_cl45_write(bp, phy,
7942 			 MDIO_PMA_DEVAD,
7943 			 MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
7944 			 addr);
7945 	/* Set the destination address */
7946 	bnx2x_cl45_write(bp, phy,
7947 			 MDIO_PMA_DEVAD,
7948 			 0x8004,
7949 			 MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF);
7950 
7951 	/* Activate read command */
7952 	bnx2x_cl45_write(bp, phy,
7953 			 MDIO_PMA_DEVAD,
7954 			 MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7955 			 0x8002);
7956 	/* Wait appropriate time for two-wire command to finish before
7957 	 * polling the status register
7958 	 */
7959 	usleep_range(1000, 2000);
7960 
7961 	/* Wait up to 500us for command complete status */
7962 	for (i = 0; i < 100; i++) {
7963 		bnx2x_cl45_read(bp, phy,
7964 				MDIO_PMA_DEVAD,
7965 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7966 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7967 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
7968 			break;
7969 		udelay(5);
7970 	}
7971 
7972 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
7973 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
7974 		DP(NETIF_MSG_LINK,
7975 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
7976 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
7977 		return -EFAULT;
7978 	}
7979 
7980 	/* Read the buffer */
7981 	for (i = 0; i < byte_cnt; i++) {
7982 		bnx2x_cl45_read(bp, phy,
7983 				MDIO_PMA_DEVAD,
7984 				MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF + i, &val);
7985 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8727_TWO_WIRE_DATA_MASK);
7986 	}
7987 
7988 	for (i = 0; i < 100; i++) {
7989 		bnx2x_cl45_read(bp, phy,
7990 				MDIO_PMA_DEVAD,
7991 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7992 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7993 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
7994 			return 0;
7995 		usleep_range(1000, 2000);
7996 	}
7997 
7998 	return -EINVAL;
7999 }
bnx2x_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u8 dev_addr,u16 addr,u16 byte_cnt,u8 * o_buf)8000 int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
8001 				 struct link_params *params, u8 dev_addr,
8002 				 u16 addr, u16 byte_cnt, u8 *o_buf)
8003 {
8004 	int rc = 0;
8005 	struct bnx2x *bp = params->bp;
8006 	u8 xfer_size;
8007 	u8 *user_data = o_buf;
8008 	read_sfp_module_eeprom_func_p read_func;
8009 
8010 	if ((dev_addr != 0xa0) && (dev_addr != 0xa2)) {
8011 		DP(NETIF_MSG_LINK, "invalid dev_addr 0x%x\n", dev_addr);
8012 		return -EINVAL;
8013 	}
8014 
8015 	switch (phy->type) {
8016 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8017 		read_func = bnx2x_8726_read_sfp_module_eeprom;
8018 		break;
8019 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8020 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8021 		read_func = bnx2x_8727_read_sfp_module_eeprom;
8022 		break;
8023 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8024 		read_func = bnx2x_warpcore_read_sfp_module_eeprom;
8025 		break;
8026 	default:
8027 		return -EOPNOTSUPP;
8028 	}
8029 
8030 	while (!rc && (byte_cnt > 0)) {
8031 		xfer_size = (byte_cnt > SFP_EEPROM_PAGE_SIZE) ?
8032 			SFP_EEPROM_PAGE_SIZE : byte_cnt;
8033 		rc = read_func(phy, params, dev_addr, addr, xfer_size,
8034 			       user_data, 0);
8035 		byte_cnt -= xfer_size;
8036 		user_data += xfer_size;
8037 		addr += xfer_size;
8038 	}
8039 	return rc;
8040 }
8041 
bnx2x_get_edc_mode(struct bnx2x_phy * phy,struct link_params * params,u16 * edc_mode)8042 static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
8043 			      struct link_params *params,
8044 			      u16 *edc_mode)
8045 {
8046 	struct bnx2x *bp = params->bp;
8047 	u32 sync_offset = 0, phy_idx, media_types;
8048 	u8 gport, val[2], check_limiting_mode = 0;
8049 	*edc_mode = EDC_MODE_LIMITING;
8050 	phy->media_type = ETH_PHY_UNSPECIFIED;
8051 	/* First check for copper cable */
8052 	if (bnx2x_read_sfp_module_eeprom(phy,
8053 					 params,
8054 					 I2C_DEV_ADDR_A0,
8055 					 SFP_EEPROM_CON_TYPE_ADDR,
8056 					 2,
8057 					 (u8 *)val) != 0) {
8058 		DP(NETIF_MSG_LINK, "Failed to read from SFP+ module EEPROM\n");
8059 		return -EINVAL;
8060 	}
8061 
8062 	switch (val[0]) {
8063 	case SFP_EEPROM_CON_TYPE_VAL_COPPER:
8064 	{
8065 		u8 copper_module_type;
8066 		phy->media_type = ETH_PHY_DA_TWINAX;
8067 		/* Check if its active cable (includes SFP+ module)
8068 		 * of passive cable
8069 		 */
8070 		if (bnx2x_read_sfp_module_eeprom(phy,
8071 					       params,
8072 					       I2C_DEV_ADDR_A0,
8073 					       SFP_EEPROM_FC_TX_TECH_ADDR,
8074 					       1,
8075 					       &copper_module_type) != 0) {
8076 			DP(NETIF_MSG_LINK,
8077 				"Failed to read copper-cable-type"
8078 				" from SFP+ EEPROM\n");
8079 			return -EINVAL;
8080 		}
8081 
8082 		if (copper_module_type &
8083 		    SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
8084 			DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
8085 			check_limiting_mode = 1;
8086 		} else if (copper_module_type &
8087 			SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
8088 				DP(NETIF_MSG_LINK,
8089 				   "Passive Copper cable detected\n");
8090 				*edc_mode =
8091 				      EDC_MODE_PASSIVE_DAC;
8092 		} else {
8093 			DP(NETIF_MSG_LINK,
8094 			   "Unknown copper-cable-type 0x%x !!!\n",
8095 			   copper_module_type);
8096 			return -EINVAL;
8097 		}
8098 		break;
8099 	}
8100 	case SFP_EEPROM_CON_TYPE_VAL_LC:
8101 	case SFP_EEPROM_CON_TYPE_VAL_RJ45:
8102 		check_limiting_mode = 1;
8103 		if ((val[1] & (SFP_EEPROM_COMP_CODE_SR_MASK |
8104 			       SFP_EEPROM_COMP_CODE_LR_MASK |
8105 			       SFP_EEPROM_COMP_CODE_LRM_MASK)) == 0) {
8106 			DP(NETIF_MSG_LINK, "1G SFP module detected\n");
8107 			gport = params->port;
8108 			phy->media_type = ETH_PHY_SFP_1G_FIBER;
8109 			if (phy->req_line_speed != SPEED_1000) {
8110 				phy->req_line_speed = SPEED_1000;
8111 				if (!CHIP_IS_E1x(bp)) {
8112 					gport = BP_PATH(bp) +
8113 					(params->port << 1);
8114 				}
8115 				netdev_err(bp->dev,
8116 					   "Warning: Link speed was forced to 1000Mbps. Current SFP module in port %d is not compliant with 10G Ethernet\n",
8117 					   gport);
8118 			}
8119 		} else {
8120 			int idx, cfg_idx = 0;
8121 			DP(NETIF_MSG_LINK, "10G Optic module detected\n");
8122 			for (idx = INT_PHY; idx < MAX_PHYS; idx++) {
8123 				if (params->phy[idx].type == phy->type) {
8124 					cfg_idx = LINK_CONFIG_IDX(idx);
8125 					break;
8126 				}
8127 			}
8128 			phy->media_type = ETH_PHY_SFPP_10G_FIBER;
8129 			phy->req_line_speed = params->req_line_speed[cfg_idx];
8130 		}
8131 		break;
8132 	default:
8133 		DP(NETIF_MSG_LINK, "Unable to determine module type 0x%x !!!\n",
8134 			 val[0]);
8135 		return -EINVAL;
8136 	}
8137 	sync_offset = params->shmem_base +
8138 		offsetof(struct shmem_region,
8139 			 dev_info.port_hw_config[params->port].media_type);
8140 	media_types = REG_RD(bp, sync_offset);
8141 	/* Update media type for non-PMF sync */
8142 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
8143 		if (&(params->phy[phy_idx]) == phy) {
8144 			media_types &= ~(PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
8145 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
8146 			media_types |= ((phy->media_type &
8147 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
8148 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
8149 			break;
8150 		}
8151 	}
8152 	REG_WR(bp, sync_offset, media_types);
8153 	if (check_limiting_mode) {
8154 		u8 options[SFP_EEPROM_OPTIONS_SIZE];
8155 		if (bnx2x_read_sfp_module_eeprom(phy,
8156 						 params,
8157 						 I2C_DEV_ADDR_A0,
8158 						 SFP_EEPROM_OPTIONS_ADDR,
8159 						 SFP_EEPROM_OPTIONS_SIZE,
8160 						 options) != 0) {
8161 			DP(NETIF_MSG_LINK,
8162 			   "Failed to read Option field from module EEPROM\n");
8163 			return -EINVAL;
8164 		}
8165 		if ((options[0] & SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK))
8166 			*edc_mode = EDC_MODE_LINEAR;
8167 		else
8168 			*edc_mode = EDC_MODE_LIMITING;
8169 	}
8170 	DP(NETIF_MSG_LINK, "EDC mode is set to 0x%x\n", *edc_mode);
8171 	return 0;
8172 }
8173 /* This function read the relevant field from the module (SFP+), and verify it
8174  * is compliant with this board
8175  */
bnx2x_verify_sfp_module(struct bnx2x_phy * phy,struct link_params * params)8176 static int bnx2x_verify_sfp_module(struct bnx2x_phy *phy,
8177 				   struct link_params *params)
8178 {
8179 	struct bnx2x *bp = params->bp;
8180 	u32 val, cmd;
8181 	u32 fw_resp, fw_cmd_param;
8182 	char vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE+1];
8183 	char vendor_pn[SFP_EEPROM_PART_NO_SIZE+1];
8184 	phy->flags &= ~FLAGS_SFP_NOT_APPROVED;
8185 	val = REG_RD(bp, params->shmem_base +
8186 			 offsetof(struct shmem_region, dev_info.
8187 				  port_feature_config[params->port].config));
8188 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8189 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_NO_ENFORCEMENT) {
8190 		DP(NETIF_MSG_LINK, "NOT enforcing module verification\n");
8191 		return 0;
8192 	}
8193 
8194 	if (params->feature_config_flags &
8195 	    FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY) {
8196 		/* Use specific phy request */
8197 		cmd = DRV_MSG_CODE_VRFY_SPECIFIC_PHY_OPT_MDL;
8198 	} else if (params->feature_config_flags &
8199 		   FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY) {
8200 		/* Use first phy request only in case of non-dual media*/
8201 		if (DUAL_MEDIA(params)) {
8202 			DP(NETIF_MSG_LINK,
8203 			   "FW does not support OPT MDL verification\n");
8204 			return -EINVAL;
8205 		}
8206 		cmd = DRV_MSG_CODE_VRFY_FIRST_PHY_OPT_MDL;
8207 	} else {
8208 		/* No support in OPT MDL detection */
8209 		DP(NETIF_MSG_LINK,
8210 		   "FW does not support OPT MDL verification\n");
8211 		return -EINVAL;
8212 	}
8213 
8214 	fw_cmd_param = FW_PARAM_SET(phy->addr, phy->type, phy->mdio_ctrl);
8215 	fw_resp = bnx2x_fw_command(bp, cmd, fw_cmd_param);
8216 	if (fw_resp == FW_MSG_CODE_VRFY_OPT_MDL_SUCCESS) {
8217 		DP(NETIF_MSG_LINK, "Approved module\n");
8218 		return 0;
8219 	}
8220 
8221 	/* Format the warning message */
8222 	if (bnx2x_read_sfp_module_eeprom(phy,
8223 					 params,
8224 					 I2C_DEV_ADDR_A0,
8225 					 SFP_EEPROM_VENDOR_NAME_ADDR,
8226 					 SFP_EEPROM_VENDOR_NAME_SIZE,
8227 					 (u8 *)vendor_name))
8228 		vendor_name[0] = '\0';
8229 	else
8230 		vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE] = '\0';
8231 	if (bnx2x_read_sfp_module_eeprom(phy,
8232 					 params,
8233 					 I2C_DEV_ADDR_A0,
8234 					 SFP_EEPROM_PART_NO_ADDR,
8235 					 SFP_EEPROM_PART_NO_SIZE,
8236 					 (u8 *)vendor_pn))
8237 		vendor_pn[0] = '\0';
8238 	else
8239 		vendor_pn[SFP_EEPROM_PART_NO_SIZE] = '\0';
8240 
8241 	netdev_err(bp->dev,  "Warning: Unqualified SFP+ module detected,"
8242 			      " Port %d from %s part number %s\n",
8243 			 params->port, vendor_name, vendor_pn);
8244 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) !=
8245 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_WARNING_MSG)
8246 		phy->flags |= FLAGS_SFP_NOT_APPROVED;
8247 	return -EINVAL;
8248 }
8249 
bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy * phy,struct link_params * params)8250 static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
8251 						 struct link_params *params)
8252 
8253 {
8254 	u8 val;
8255 	int rc;
8256 	struct bnx2x *bp = params->bp;
8257 	u16 timeout;
8258 	/* Initialization time after hot-plug may take up to 300ms for
8259 	 * some phys type ( e.g. JDSU )
8260 	 */
8261 
8262 	for (timeout = 0; timeout < 60; timeout++) {
8263 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
8264 			rc = bnx2x_warpcore_read_sfp_module_eeprom(
8265 				phy, params, I2C_DEV_ADDR_A0, 1, 1, &val,
8266 				1);
8267 		else
8268 			rc = bnx2x_read_sfp_module_eeprom(phy, params,
8269 							  I2C_DEV_ADDR_A0,
8270 							  1, 1, &val);
8271 		if (rc == 0) {
8272 			DP(NETIF_MSG_LINK,
8273 			   "SFP+ module initialization took %d ms\n",
8274 			   timeout * 5);
8275 			return 0;
8276 		}
8277 		usleep_range(5000, 10000);
8278 	}
8279 	rc = bnx2x_read_sfp_module_eeprom(phy, params, I2C_DEV_ADDR_A0,
8280 					  1, 1, &val);
8281 	return rc;
8282 }
8283 
bnx2x_8727_power_module(struct bnx2x * bp,struct bnx2x_phy * phy,u8 is_power_up)8284 static void bnx2x_8727_power_module(struct bnx2x *bp,
8285 				    struct bnx2x_phy *phy,
8286 				    u8 is_power_up) {
8287 	/* Make sure GPIOs are not using for LED mode */
8288 	u16 val;
8289 	/* In the GPIO register, bit 4 is use to determine if the GPIOs are
8290 	 * operating as INPUT or as OUTPUT. Bit 1 is for input, and 0 for
8291 	 * output
8292 	 * Bits 0-1 determine the GPIOs value for OUTPUT in case bit 4 val is 0
8293 	 * Bits 8-9 determine the GPIOs value for INPUT in case bit 4 val is 1
8294 	 * where the 1st bit is the over-current(only input), and 2nd bit is
8295 	 * for power( only output )
8296 	 *
8297 	 * In case of NOC feature is disabled and power is up, set GPIO control
8298 	 *  as input to enable listening of over-current indication
8299 	 */
8300 	if (phy->flags & FLAGS_NOC)
8301 		return;
8302 	if (is_power_up)
8303 		val = (1<<4);
8304 	else
8305 		/* Set GPIO control to OUTPUT, and set the power bit
8306 		 * to according to the is_power_up
8307 		 */
8308 		val = (1<<1);
8309 
8310 	bnx2x_cl45_write(bp, phy,
8311 			 MDIO_PMA_DEVAD,
8312 			 MDIO_PMA_REG_8727_GPIO_CTRL,
8313 			 val);
8314 }
8315 
bnx2x_8726_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8316 static int bnx2x_8726_set_limiting_mode(struct bnx2x *bp,
8317 					struct bnx2x_phy *phy,
8318 					u16 edc_mode)
8319 {
8320 	u16 cur_limiting_mode;
8321 
8322 	bnx2x_cl45_read(bp, phy,
8323 			MDIO_PMA_DEVAD,
8324 			MDIO_PMA_REG_ROM_VER2,
8325 			&cur_limiting_mode);
8326 	DP(NETIF_MSG_LINK, "Current Limiting mode is 0x%x\n",
8327 		 cur_limiting_mode);
8328 
8329 	if (edc_mode == EDC_MODE_LIMITING) {
8330 		DP(NETIF_MSG_LINK, "Setting LIMITING MODE\n");
8331 		bnx2x_cl45_write(bp, phy,
8332 				 MDIO_PMA_DEVAD,
8333 				 MDIO_PMA_REG_ROM_VER2,
8334 				 EDC_MODE_LIMITING);
8335 	} else { /* LRM mode ( default )*/
8336 
8337 		DP(NETIF_MSG_LINK, "Setting LRM MODE\n");
8338 
8339 		/* Changing to LRM mode takes quite few seconds. So do it only
8340 		 * if current mode is limiting (default is LRM)
8341 		 */
8342 		if (cur_limiting_mode != EDC_MODE_LIMITING)
8343 			return 0;
8344 
8345 		bnx2x_cl45_write(bp, phy,
8346 				 MDIO_PMA_DEVAD,
8347 				 MDIO_PMA_REG_LRM_MODE,
8348 				 0);
8349 		bnx2x_cl45_write(bp, phy,
8350 				 MDIO_PMA_DEVAD,
8351 				 MDIO_PMA_REG_ROM_VER2,
8352 				 0x128);
8353 		bnx2x_cl45_write(bp, phy,
8354 				 MDIO_PMA_DEVAD,
8355 				 MDIO_PMA_REG_MISC_CTRL0,
8356 				 0x4008);
8357 		bnx2x_cl45_write(bp, phy,
8358 				 MDIO_PMA_DEVAD,
8359 				 MDIO_PMA_REG_LRM_MODE,
8360 				 0xaaaa);
8361 	}
8362 	return 0;
8363 }
8364 
bnx2x_8727_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8365 static int bnx2x_8727_set_limiting_mode(struct bnx2x *bp,
8366 					struct bnx2x_phy *phy,
8367 					u16 edc_mode)
8368 {
8369 	u16 phy_identifier;
8370 	u16 rom_ver2_val;
8371 	bnx2x_cl45_read(bp, phy,
8372 			MDIO_PMA_DEVAD,
8373 			MDIO_PMA_REG_PHY_IDENTIFIER,
8374 			&phy_identifier);
8375 
8376 	bnx2x_cl45_write(bp, phy,
8377 			 MDIO_PMA_DEVAD,
8378 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8379 			 (phy_identifier & ~(1<<9)));
8380 
8381 	bnx2x_cl45_read(bp, phy,
8382 			MDIO_PMA_DEVAD,
8383 			MDIO_PMA_REG_ROM_VER2,
8384 			&rom_ver2_val);
8385 	/* Keep the MSB 8-bits, and set the LSB 8-bits with the edc_mode */
8386 	bnx2x_cl45_write(bp, phy,
8387 			 MDIO_PMA_DEVAD,
8388 			 MDIO_PMA_REG_ROM_VER2,
8389 			 (rom_ver2_val & 0xff00) | (edc_mode & 0x00ff));
8390 
8391 	bnx2x_cl45_write(bp, phy,
8392 			 MDIO_PMA_DEVAD,
8393 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8394 			 (phy_identifier | (1<<9)));
8395 
8396 	return 0;
8397 }
8398 
bnx2x_8727_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)8399 static void bnx2x_8727_specific_func(struct bnx2x_phy *phy,
8400 				     struct link_params *params,
8401 				     u32 action)
8402 {
8403 	struct bnx2x *bp = params->bp;
8404 	u16 val;
8405 	switch (action) {
8406 	case DISABLE_TX:
8407 		bnx2x_sfp_set_transmitter(params, phy, 0);
8408 		break;
8409 	case ENABLE_TX:
8410 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED))
8411 			bnx2x_sfp_set_transmitter(params, phy, 1);
8412 		break;
8413 	case PHY_INIT:
8414 		bnx2x_cl45_write(bp, phy,
8415 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8416 				 (1<<2) | (1<<5));
8417 		bnx2x_cl45_write(bp, phy,
8418 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8419 				 0);
8420 		bnx2x_cl45_write(bp, phy,
8421 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x0006);
8422 		/* Make MOD_ABS give interrupt on change */
8423 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8424 				MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8425 				&val);
8426 		val |= (1<<12);
8427 		if (phy->flags & FLAGS_NOC)
8428 			val |= (3<<5);
8429 		/* Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
8430 		 * status which reflect SFP+ module over-current
8431 		 */
8432 		if (!(phy->flags & FLAGS_NOC))
8433 			val &= 0xff8f; /* Reset bits 4-6 */
8434 		bnx2x_cl45_write(bp, phy,
8435 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8436 				 val);
8437 		break;
8438 	default:
8439 		DP(NETIF_MSG_LINK, "Function 0x%x not supported by 8727\n",
8440 		   action);
8441 		return;
8442 	}
8443 }
8444 
bnx2x_set_e1e2_module_fault_led(struct link_params * params,u8 gpio_mode)8445 static void bnx2x_set_e1e2_module_fault_led(struct link_params *params,
8446 					   u8 gpio_mode)
8447 {
8448 	struct bnx2x *bp = params->bp;
8449 
8450 	u32 fault_led_gpio = REG_RD(bp, params->shmem_base +
8451 			    offsetof(struct shmem_region,
8452 			dev_info.port_hw_config[params->port].sfp_ctrl)) &
8453 		PORT_HW_CFG_FAULT_MODULE_LED_MASK;
8454 	switch (fault_led_gpio) {
8455 	case PORT_HW_CFG_FAULT_MODULE_LED_DISABLED:
8456 		return;
8457 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO0:
8458 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO1:
8459 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO2:
8460 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO3:
8461 	{
8462 		u8 gpio_port = bnx2x_get_gpio_port(params);
8463 		u16 gpio_pin = fault_led_gpio -
8464 			PORT_HW_CFG_FAULT_MODULE_LED_GPIO0;
8465 		DP(NETIF_MSG_LINK, "Set fault module-detected led "
8466 				   "pin %x port %x mode %x\n",
8467 			       gpio_pin, gpio_port, gpio_mode);
8468 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
8469 	}
8470 	break;
8471 	default:
8472 		DP(NETIF_MSG_LINK, "Error: Invalid fault led mode 0x%x\n",
8473 			       fault_led_gpio);
8474 	}
8475 }
8476 
bnx2x_set_e3_module_fault_led(struct link_params * params,u8 gpio_mode)8477 static void bnx2x_set_e3_module_fault_led(struct link_params *params,
8478 					  u8 gpio_mode)
8479 {
8480 	u32 pin_cfg;
8481 	u8 port = params->port;
8482 	struct bnx2x *bp = params->bp;
8483 	pin_cfg = (REG_RD(bp, params->shmem_base +
8484 			 offsetof(struct shmem_region,
8485 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
8486 		PORT_HW_CFG_E3_FAULT_MDL_LED_MASK) >>
8487 		PORT_HW_CFG_E3_FAULT_MDL_LED_SHIFT;
8488 	DP(NETIF_MSG_LINK, "Setting Fault LED to %d using pin cfg %d\n",
8489 		       gpio_mode, pin_cfg);
8490 	bnx2x_set_cfg_pin(bp, pin_cfg, gpio_mode);
8491 }
8492 
bnx2x_set_sfp_module_fault_led(struct link_params * params,u8 gpio_mode)8493 static void bnx2x_set_sfp_module_fault_led(struct link_params *params,
8494 					   u8 gpio_mode)
8495 {
8496 	struct bnx2x *bp = params->bp;
8497 	DP(NETIF_MSG_LINK, "Setting SFP+ module fault LED to %d\n", gpio_mode);
8498 	if (CHIP_IS_E3(bp)) {
8499 		/* Low ==> if SFP+ module is supported otherwise
8500 		 * High ==> if SFP+ module is not on the approved vendor list
8501 		 */
8502 		bnx2x_set_e3_module_fault_led(params, gpio_mode);
8503 	} else
8504 		bnx2x_set_e1e2_module_fault_led(params, gpio_mode);
8505 }
8506 
bnx2x_warpcore_hw_reset(struct bnx2x_phy * phy,struct link_params * params)8507 static void bnx2x_warpcore_hw_reset(struct bnx2x_phy *phy,
8508 				    struct link_params *params)
8509 {
8510 	struct bnx2x *bp = params->bp;
8511 	bnx2x_warpcore_power_module(params, 0);
8512 	/* Put Warpcore in low power mode */
8513 	REG_WR(bp, MISC_REG_WC0_RESET, 0x0c0e);
8514 
8515 	/* Put LCPLL in low power mode */
8516 	REG_WR(bp, MISC_REG_LCPLL_E40_PWRDWN, 1);
8517 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_ANA, 0);
8518 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_DIG, 0);
8519 }
8520 
bnx2x_power_sfp_module(struct link_params * params,struct bnx2x_phy * phy,u8 power)8521 static void bnx2x_power_sfp_module(struct link_params *params,
8522 				   struct bnx2x_phy *phy,
8523 				   u8 power)
8524 {
8525 	struct bnx2x *bp = params->bp;
8526 	DP(NETIF_MSG_LINK, "Setting SFP+ power to %x\n", power);
8527 
8528 	switch (phy->type) {
8529 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8530 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8531 		bnx2x_8727_power_module(params->bp, phy, power);
8532 		break;
8533 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8534 		bnx2x_warpcore_power_module(params, power);
8535 		break;
8536 	default:
8537 		break;
8538 	}
8539 }
bnx2x_warpcore_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8540 static void bnx2x_warpcore_set_limiting_mode(struct link_params *params,
8541 					     struct bnx2x_phy *phy,
8542 					     u16 edc_mode)
8543 {
8544 	u16 val = 0;
8545 	u16 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8546 	struct bnx2x *bp = params->bp;
8547 
8548 	u8 lane = bnx2x_get_warpcore_lane(phy, params);
8549 	/* This is a global register which controls all lanes */
8550 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8551 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8552 	val &= ~(0xf << (lane << 2));
8553 
8554 	switch (edc_mode) {
8555 	case EDC_MODE_LINEAR:
8556 	case EDC_MODE_LIMITING:
8557 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8558 		break;
8559 	case EDC_MODE_PASSIVE_DAC:
8560 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
8561 		break;
8562 	default:
8563 		break;
8564 	}
8565 
8566 	val |= (mode << (lane << 2));
8567 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
8568 			 MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, val);
8569 	/* A must read */
8570 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8571 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8572 
8573 	/* Restart microcode to re-read the new mode */
8574 	bnx2x_warpcore_reset_lane(bp, phy, 1);
8575 	bnx2x_warpcore_reset_lane(bp, phy, 0);
8576 
8577 }
8578 
bnx2x_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8579 static void bnx2x_set_limiting_mode(struct link_params *params,
8580 				    struct bnx2x_phy *phy,
8581 				    u16 edc_mode)
8582 {
8583 	switch (phy->type) {
8584 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8585 		bnx2x_8726_set_limiting_mode(params->bp, phy, edc_mode);
8586 		break;
8587 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8588 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8589 		bnx2x_8727_set_limiting_mode(params->bp, phy, edc_mode);
8590 		break;
8591 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8592 		bnx2x_warpcore_set_limiting_mode(params, phy, edc_mode);
8593 		break;
8594 	}
8595 }
8596 
bnx2x_sfp_module_detection(struct bnx2x_phy * phy,struct link_params * params)8597 int bnx2x_sfp_module_detection(struct bnx2x_phy *phy,
8598 			       struct link_params *params)
8599 {
8600 	struct bnx2x *bp = params->bp;
8601 	u16 edc_mode;
8602 	int rc = 0;
8603 
8604 	u32 val = REG_RD(bp, params->shmem_base +
8605 			     offsetof(struct shmem_region, dev_info.
8606 				     port_feature_config[params->port].config));
8607 	/* Enabled transmitter by default */
8608 	bnx2x_sfp_set_transmitter(params, phy, 1);
8609 	DP(NETIF_MSG_LINK, "SFP+ module plugged in/out detected on port %d\n",
8610 		 params->port);
8611 	/* Power up module */
8612 	bnx2x_power_sfp_module(params, phy, 1);
8613 	if (bnx2x_get_edc_mode(phy, params, &edc_mode) != 0) {
8614 		DP(NETIF_MSG_LINK, "Failed to get valid module type\n");
8615 		return -EINVAL;
8616 	} else if (bnx2x_verify_sfp_module(phy, params) != 0) {
8617 		/* Check SFP+ module compatibility */
8618 		DP(NETIF_MSG_LINK, "Module verification failed!!\n");
8619 		rc = -EINVAL;
8620 		/* Turn on fault module-detected led */
8621 		bnx2x_set_sfp_module_fault_led(params,
8622 					       MISC_REGISTERS_GPIO_HIGH);
8623 
8624 		/* Check if need to power down the SFP+ module */
8625 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8626 		     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_POWER_DOWN) {
8627 			DP(NETIF_MSG_LINK, "Shutdown SFP+ module!!\n");
8628 			bnx2x_power_sfp_module(params, phy, 0);
8629 			return rc;
8630 		}
8631 	} else {
8632 		/* Turn off fault module-detected led */
8633 		bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_LOW);
8634 	}
8635 
8636 	/* Check and set limiting mode / LRM mode on 8726. On 8727 it
8637 	 * is done automatically
8638 	 */
8639 	bnx2x_set_limiting_mode(params, phy, edc_mode);
8640 
8641 	/* Disable transmit for this module if the module is not approved, and
8642 	 * laser needs to be disabled.
8643 	 */
8644 	if ((rc) &&
8645 	    ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8646 	     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER))
8647 		bnx2x_sfp_set_transmitter(params, phy, 0);
8648 
8649 	return rc;
8650 }
8651 
bnx2x_handle_module_detect_int(struct link_params * params)8652 void bnx2x_handle_module_detect_int(struct link_params *params)
8653 {
8654 	struct bnx2x *bp = params->bp;
8655 	struct bnx2x_phy *phy;
8656 	u32 gpio_val;
8657 	u8 gpio_num, gpio_port;
8658 	if (CHIP_IS_E3(bp)) {
8659 		phy = &params->phy[INT_PHY];
8660 		/* Always enable TX laser,will be disabled in case of fault */
8661 		bnx2x_sfp_set_transmitter(params, phy, 1);
8662 	} else {
8663 		phy = &params->phy[EXT_PHY1];
8664 	}
8665 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id, params->shmem_base,
8666 				      params->port, &gpio_num, &gpio_port) ==
8667 	    -EINVAL) {
8668 		DP(NETIF_MSG_LINK, "Failed to get MOD_ABS interrupt config\n");
8669 		return;
8670 	}
8671 
8672 	/* Set valid module led off */
8673 	bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_HIGH);
8674 
8675 	/* Get current gpio val reflecting module plugged in / out*/
8676 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
8677 
8678 	/* Call the handling function in case module is detected */
8679 	if (gpio_val == 0) {
8680 		bnx2x_set_mdio_emac_per_phy(bp, params);
8681 		bnx2x_set_aer_mmd(params, phy);
8682 
8683 		bnx2x_power_sfp_module(params, phy, 1);
8684 		bnx2x_set_gpio_int(bp, gpio_num,
8685 				   MISC_REGISTERS_GPIO_INT_OUTPUT_CLR,
8686 				   gpio_port);
8687 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0) {
8688 			bnx2x_sfp_module_detection(phy, params);
8689 			if (CHIP_IS_E3(bp)) {
8690 				u16 rx_tx_in_reset;
8691 				/* In case WC is out of reset, reconfigure the
8692 				 * link speed while taking into account 1G
8693 				 * module limitation.
8694 				 */
8695 				bnx2x_cl45_read(bp, phy,
8696 						MDIO_WC_DEVAD,
8697 						MDIO_WC_REG_DIGITAL5_MISC6,
8698 						&rx_tx_in_reset);
8699 				if ((!rx_tx_in_reset) &&
8700 				    (params->link_flags &
8701 				     PHY_INITIALIZED)) {
8702 					bnx2x_warpcore_reset_lane(bp, phy, 1);
8703 					bnx2x_warpcore_config_sfi(phy, params);
8704 					bnx2x_warpcore_reset_lane(bp, phy, 0);
8705 				}
8706 			}
8707 		} else {
8708 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
8709 		}
8710 	} else {
8711 		bnx2x_set_gpio_int(bp, gpio_num,
8712 				   MISC_REGISTERS_GPIO_INT_OUTPUT_SET,
8713 				   gpio_port);
8714 		/* Module was plugged out.
8715 		 * Disable transmit for this module
8716 		 */
8717 		phy->media_type = ETH_PHY_NOT_PRESENT;
8718 	}
8719 }
8720 
8721 /******************************************************************/
8722 /*		Used by 8706 and 8727                             */
8723 /******************************************************************/
bnx2x_sfp_mask_fault(struct bnx2x * bp,struct bnx2x_phy * phy,u16 alarm_status_offset,u16 alarm_ctrl_offset)8724 static void bnx2x_sfp_mask_fault(struct bnx2x *bp,
8725 				 struct bnx2x_phy *phy,
8726 				 u16 alarm_status_offset,
8727 				 u16 alarm_ctrl_offset)
8728 {
8729 	u16 alarm_status, val;
8730 	bnx2x_cl45_read(bp, phy,
8731 			MDIO_PMA_DEVAD, alarm_status_offset,
8732 			&alarm_status);
8733 	bnx2x_cl45_read(bp, phy,
8734 			MDIO_PMA_DEVAD, alarm_status_offset,
8735 			&alarm_status);
8736 	/* Mask or enable the fault event. */
8737 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, &val);
8738 	if (alarm_status & (1<<0))
8739 		val &= ~(1<<0);
8740 	else
8741 		val |= (1<<0);
8742 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, val);
8743 }
8744 /******************************************************************/
8745 /*		common BCM8706/BCM8726 PHY SECTION		  */
8746 /******************************************************************/
bnx2x_8706_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8747 static u8 bnx2x_8706_8726_read_status(struct bnx2x_phy *phy,
8748 				      struct link_params *params,
8749 				      struct link_vars *vars)
8750 {
8751 	u8 link_up = 0;
8752 	u16 val1, val2, rx_sd, pcs_status;
8753 	struct bnx2x *bp = params->bp;
8754 	DP(NETIF_MSG_LINK, "XGXS 8706/8726\n");
8755 	/* Clear RX Alarm*/
8756 	bnx2x_cl45_read(bp, phy,
8757 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
8758 
8759 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
8760 			     MDIO_PMA_LASI_TXCTRL);
8761 
8762 	/* Clear LASI indication*/
8763 	bnx2x_cl45_read(bp, phy,
8764 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
8765 	bnx2x_cl45_read(bp, phy,
8766 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
8767 	DP(NETIF_MSG_LINK, "8706/8726 LASI status 0x%x--> 0x%x\n", val1, val2);
8768 
8769 	bnx2x_cl45_read(bp, phy,
8770 			MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
8771 	bnx2x_cl45_read(bp, phy,
8772 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &pcs_status);
8773 	bnx2x_cl45_read(bp, phy,
8774 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8775 	bnx2x_cl45_read(bp, phy,
8776 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8777 
8778 	DP(NETIF_MSG_LINK, "8706/8726 rx_sd 0x%x pcs_status 0x%x 1Gbps"
8779 			" link_status 0x%x\n", rx_sd, pcs_status, val2);
8780 	/* Link is up if both bit 0 of pmd_rx_sd and bit 0 of pcs_status
8781 	 * are set, or if the autoneg bit 1 is set
8782 	 */
8783 	link_up = ((rx_sd & pcs_status & 0x1) || (val2 & (1<<1)));
8784 	if (link_up) {
8785 		if (val2 & (1<<1))
8786 			vars->line_speed = SPEED_1000;
8787 		else
8788 			vars->line_speed = SPEED_10000;
8789 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
8790 		vars->duplex = DUPLEX_FULL;
8791 	}
8792 
8793 	/* Capture 10G link fault. Read twice to clear stale value. */
8794 	if (vars->line_speed == SPEED_10000) {
8795 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8796 			    MDIO_PMA_LASI_TXSTAT, &val1);
8797 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8798 			    MDIO_PMA_LASI_TXSTAT, &val1);
8799 		if (val1 & (1<<0))
8800 			vars->fault_detected = 1;
8801 	}
8802 
8803 	return link_up;
8804 }
8805 
8806 /******************************************************************/
8807 /*			BCM8706 PHY SECTION			  */
8808 /******************************************************************/
bnx2x_8706_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8809 static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
8810 				 struct link_params *params,
8811 				 struct link_vars *vars)
8812 {
8813 	u32 tx_en_mode;
8814 	u16 cnt, val, tmp1;
8815 	struct bnx2x *bp = params->bp;
8816 
8817 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
8818 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
8819 	/* HW reset */
8820 	bnx2x_ext_phy_hw_reset(bp, params->port);
8821 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
8822 	bnx2x_wait_reset_complete(bp, phy, params);
8823 
8824 	/* Wait until fw is loaded */
8825 	for (cnt = 0; cnt < 100; cnt++) {
8826 		bnx2x_cl45_read(bp, phy,
8827 				MDIO_PMA_DEVAD, MDIO_PMA_REG_ROM_VER1, &val);
8828 		if (val)
8829 			break;
8830 		usleep_range(10000, 20000);
8831 	}
8832 	DP(NETIF_MSG_LINK, "XGXS 8706 is initialized after %d ms\n", cnt);
8833 	if ((params->feature_config_flags &
8834 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
8835 		u8 i;
8836 		u16 reg;
8837 		for (i = 0; i < 4; i++) {
8838 			reg = MDIO_XS_8706_REG_BANK_RX0 +
8839 				i*(MDIO_XS_8706_REG_BANK_RX1 -
8840 				   MDIO_XS_8706_REG_BANK_RX0);
8841 			bnx2x_cl45_read(bp, phy, MDIO_XS_DEVAD, reg, &val);
8842 			/* Clear first 3 bits of the control */
8843 			val &= ~0x7;
8844 			/* Set control bits according to configuration */
8845 			val |= (phy->rx_preemphasis[i] & 0x7);
8846 			DP(NETIF_MSG_LINK, "Setting RX Equalizer to BCM8706"
8847 				   " reg 0x%x <-- val 0x%x\n", reg, val);
8848 			bnx2x_cl45_write(bp, phy, MDIO_XS_DEVAD, reg, val);
8849 		}
8850 	}
8851 	/* Force speed */
8852 	if (phy->req_line_speed == SPEED_10000) {
8853 		DP(NETIF_MSG_LINK, "XGXS 8706 force 10Gbps\n");
8854 
8855 		bnx2x_cl45_write(bp, phy,
8856 				 MDIO_PMA_DEVAD,
8857 				 MDIO_PMA_REG_DIGITAL_CTRL, 0x400);
8858 		bnx2x_cl45_write(bp, phy,
8859 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8860 				 0);
8861 		/* Arm LASI for link and Tx fault. */
8862 		bnx2x_cl45_write(bp, phy,
8863 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 3);
8864 	} else {
8865 		/* Force 1Gbps using autoneg with 1G advertisement */
8866 
8867 		/* Allow CL37 through CL73 */
8868 		DP(NETIF_MSG_LINK, "XGXS 8706 AutoNeg\n");
8869 		bnx2x_cl45_write(bp, phy,
8870 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
8871 
8872 		/* Enable Full-Duplex advertisement on CL37 */
8873 		bnx2x_cl45_write(bp, phy,
8874 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LP, 0x0020);
8875 		/* Enable CL37 AN */
8876 		bnx2x_cl45_write(bp, phy,
8877 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
8878 		/* 1G support */
8879 		bnx2x_cl45_write(bp, phy,
8880 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, (1<<5));
8881 
8882 		/* Enable clause 73 AN */
8883 		bnx2x_cl45_write(bp, phy,
8884 				 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
8885 		bnx2x_cl45_write(bp, phy,
8886 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8887 				 0x0400);
8888 		bnx2x_cl45_write(bp, phy,
8889 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
8890 				 0x0004);
8891 	}
8892 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
8893 
8894 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
8895 	 * power mode, if TX Laser is disabled
8896 	 */
8897 
8898 	tx_en_mode = REG_RD(bp, params->shmem_base +
8899 			    offsetof(struct shmem_region,
8900 				dev_info.port_hw_config[params->port].sfp_ctrl))
8901 			& PORT_HW_CFG_TX_LASER_MASK;
8902 
8903 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
8904 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
8905 		bnx2x_cl45_read(bp, phy,
8906 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, &tmp1);
8907 		tmp1 |= 0x1;
8908 		bnx2x_cl45_write(bp, phy,
8909 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
8910 	}
8911 
8912 	return 0;
8913 }
8914 
bnx2x_8706_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8915 static int bnx2x_8706_read_status(struct bnx2x_phy *phy,
8916 				  struct link_params *params,
8917 				  struct link_vars *vars)
8918 {
8919 	return bnx2x_8706_8726_read_status(phy, params, vars);
8920 }
8921 
8922 /******************************************************************/
8923 /*			BCM8726 PHY SECTION			  */
8924 /******************************************************************/
bnx2x_8726_config_loopback(struct bnx2x_phy * phy,struct link_params * params)8925 static void bnx2x_8726_config_loopback(struct bnx2x_phy *phy,
8926 				       struct link_params *params)
8927 {
8928 	struct bnx2x *bp = params->bp;
8929 	DP(NETIF_MSG_LINK, "PMA/PMD ext_phy_loopback: 8726\n");
8930 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0001);
8931 }
8932 
bnx2x_8726_external_rom_boot(struct bnx2x_phy * phy,struct link_params * params)8933 static void bnx2x_8726_external_rom_boot(struct bnx2x_phy *phy,
8934 					 struct link_params *params)
8935 {
8936 	struct bnx2x *bp = params->bp;
8937 	/* Need to wait 100ms after reset */
8938 	msleep(100);
8939 
8940 	/* Micro controller re-boot */
8941 	bnx2x_cl45_write(bp, phy,
8942 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x018B);
8943 
8944 	/* Set soft reset */
8945 	bnx2x_cl45_write(bp, phy,
8946 			 MDIO_PMA_DEVAD,
8947 			 MDIO_PMA_REG_GEN_CTRL,
8948 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
8949 
8950 	bnx2x_cl45_write(bp, phy,
8951 			 MDIO_PMA_DEVAD,
8952 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
8953 
8954 	bnx2x_cl45_write(bp, phy,
8955 			 MDIO_PMA_DEVAD,
8956 			 MDIO_PMA_REG_GEN_CTRL,
8957 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
8958 
8959 	/* Wait for 150ms for microcode load */
8960 	msleep(150);
8961 
8962 	/* Disable serial boot control, tristates pins SS_N, SCK, MOSI, MISO */
8963 	bnx2x_cl45_write(bp, phy,
8964 			 MDIO_PMA_DEVAD,
8965 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
8966 
8967 	msleep(200);
8968 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
8969 }
8970 
bnx2x_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8971 static u8 bnx2x_8726_read_status(struct bnx2x_phy *phy,
8972 				 struct link_params *params,
8973 				 struct link_vars *vars)
8974 {
8975 	struct bnx2x *bp = params->bp;
8976 	u16 val1;
8977 	u8 link_up = bnx2x_8706_8726_read_status(phy, params, vars);
8978 	if (link_up) {
8979 		bnx2x_cl45_read(bp, phy,
8980 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
8981 				&val1);
8982 		if (val1 & (1<<15)) {
8983 			DP(NETIF_MSG_LINK, "Tx is disabled\n");
8984 			link_up = 0;
8985 			vars->line_speed = 0;
8986 		}
8987 	}
8988 	return link_up;
8989 }
8990 
8991 
bnx2x_8726_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8992 static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
8993 				  struct link_params *params,
8994 				  struct link_vars *vars)
8995 {
8996 	struct bnx2x *bp = params->bp;
8997 	DP(NETIF_MSG_LINK, "Initializing BCM8726\n");
8998 
8999 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
9000 	bnx2x_wait_reset_complete(bp, phy, params);
9001 
9002 	bnx2x_8726_external_rom_boot(phy, params);
9003 
9004 	/* Need to call module detected on initialization since the module
9005 	 * detection triggered by actual module insertion might occur before
9006 	 * driver is loaded, and when driver is loaded, it reset all
9007 	 * registers, including the transmitter
9008 	 */
9009 	bnx2x_sfp_module_detection(phy, params);
9010 
9011 	if (phy->req_line_speed == SPEED_1000) {
9012 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
9013 		bnx2x_cl45_write(bp, phy,
9014 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
9015 		bnx2x_cl45_write(bp, phy,
9016 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
9017 		bnx2x_cl45_write(bp, phy,
9018 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x5);
9019 		bnx2x_cl45_write(bp, phy,
9020 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9021 				 0x400);
9022 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9023 		   (phy->speed_cap_mask &
9024 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) &&
9025 		   ((phy->speed_cap_mask &
9026 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
9027 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
9028 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
9029 		/* Set Flow control */
9030 		bnx2x_ext_phy_set_pause(params, phy, vars);
9031 		bnx2x_cl45_write(bp, phy,
9032 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, 0x20);
9033 		bnx2x_cl45_write(bp, phy,
9034 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
9035 		bnx2x_cl45_write(bp, phy,
9036 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, 0x0020);
9037 		bnx2x_cl45_write(bp, phy,
9038 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
9039 		bnx2x_cl45_write(bp, phy,
9040 				MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
9041 		/* Enable RX-ALARM control to receive interrupt for 1G speed
9042 		 * change
9043 		 */
9044 		bnx2x_cl45_write(bp, phy,
9045 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x4);
9046 		bnx2x_cl45_write(bp, phy,
9047 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9048 				 0x400);
9049 
9050 	} else { /* Default 10G. Set only LASI control */
9051 		bnx2x_cl45_write(bp, phy,
9052 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 1);
9053 	}
9054 
9055 	/* Set TX PreEmphasis if needed */
9056 	if ((params->feature_config_flags &
9057 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
9058 		DP(NETIF_MSG_LINK,
9059 		   "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
9060 			 phy->tx_preemphasis[0],
9061 			 phy->tx_preemphasis[1]);
9062 		bnx2x_cl45_write(bp, phy,
9063 				 MDIO_PMA_DEVAD,
9064 				 MDIO_PMA_REG_8726_TX_CTRL1,
9065 				 phy->tx_preemphasis[0]);
9066 
9067 		bnx2x_cl45_write(bp, phy,
9068 				 MDIO_PMA_DEVAD,
9069 				 MDIO_PMA_REG_8726_TX_CTRL2,
9070 				 phy->tx_preemphasis[1]);
9071 	}
9072 
9073 	return 0;
9074 
9075 }
9076 
bnx2x_8726_link_reset(struct bnx2x_phy * phy,struct link_params * params)9077 static void bnx2x_8726_link_reset(struct bnx2x_phy *phy,
9078 				  struct link_params *params)
9079 {
9080 	struct bnx2x *bp = params->bp;
9081 	DP(NETIF_MSG_LINK, "bnx2x_8726_link_reset port %d\n", params->port);
9082 	/* Set serial boot control for external load */
9083 	bnx2x_cl45_write(bp, phy,
9084 			 MDIO_PMA_DEVAD,
9085 			 MDIO_PMA_REG_GEN_CTRL, 0x0001);
9086 }
9087 
9088 /******************************************************************/
9089 /*			BCM8727 PHY SECTION			  */
9090 /******************************************************************/
9091 
bnx2x_8727_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)9092 static void bnx2x_8727_set_link_led(struct bnx2x_phy *phy,
9093 				    struct link_params *params, u8 mode)
9094 {
9095 	struct bnx2x *bp = params->bp;
9096 	u16 led_mode_bitmask = 0;
9097 	u16 gpio_pins_bitmask = 0;
9098 	u16 val;
9099 	/* Only NOC flavor requires to set the LED specifically */
9100 	if (!(phy->flags & FLAGS_NOC))
9101 		return;
9102 	switch (mode) {
9103 	case LED_MODE_FRONT_PANEL_OFF:
9104 	case LED_MODE_OFF:
9105 		led_mode_bitmask = 0;
9106 		gpio_pins_bitmask = 0x03;
9107 		break;
9108 	case LED_MODE_ON:
9109 		led_mode_bitmask = 0;
9110 		gpio_pins_bitmask = 0x02;
9111 		break;
9112 	case LED_MODE_OPER:
9113 		led_mode_bitmask = 0x60;
9114 		gpio_pins_bitmask = 0x11;
9115 		break;
9116 	}
9117 	bnx2x_cl45_read(bp, phy,
9118 			MDIO_PMA_DEVAD,
9119 			MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9120 			&val);
9121 	val &= 0xff8f;
9122 	val |= led_mode_bitmask;
9123 	bnx2x_cl45_write(bp, phy,
9124 			 MDIO_PMA_DEVAD,
9125 			 MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9126 			 val);
9127 	bnx2x_cl45_read(bp, phy,
9128 			MDIO_PMA_DEVAD,
9129 			MDIO_PMA_REG_8727_GPIO_CTRL,
9130 			&val);
9131 	val &= 0xffe0;
9132 	val |= gpio_pins_bitmask;
9133 	bnx2x_cl45_write(bp, phy,
9134 			 MDIO_PMA_DEVAD,
9135 			 MDIO_PMA_REG_8727_GPIO_CTRL,
9136 			 val);
9137 }
bnx2x_8727_hw_reset(struct bnx2x_phy * phy,struct link_params * params)9138 static void bnx2x_8727_hw_reset(struct bnx2x_phy *phy,
9139 				struct link_params *params) {
9140 	u32 swap_val, swap_override;
9141 	u8 port;
9142 	/* The PHY reset is controlled by GPIO 1. Fake the port number
9143 	 * to cancel the swap done in set_gpio()
9144 	 */
9145 	struct bnx2x *bp = params->bp;
9146 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
9147 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
9148 	port = (swap_val && swap_override) ^ 1;
9149 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
9150 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
9151 }
9152 
bnx2x_8727_config_speed(struct bnx2x_phy * phy,struct link_params * params)9153 static void bnx2x_8727_config_speed(struct bnx2x_phy *phy,
9154 				    struct link_params *params)
9155 {
9156 	struct bnx2x *bp = params->bp;
9157 	u16 tmp1, val;
9158 	/* Set option 1G speed */
9159 	if ((phy->req_line_speed == SPEED_1000) ||
9160 	    (phy->media_type == ETH_PHY_SFP_1G_FIBER)) {
9161 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
9162 		bnx2x_cl45_write(bp, phy,
9163 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
9164 		bnx2x_cl45_write(bp, phy,
9165 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
9166 		bnx2x_cl45_read(bp, phy,
9167 				MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, &tmp1);
9168 		DP(NETIF_MSG_LINK, "1.7 = 0x%x\n", tmp1);
9169 		/* Power down the XAUI until link is up in case of dual-media
9170 		 * and 1G
9171 		 */
9172 		if (DUAL_MEDIA(params)) {
9173 			bnx2x_cl45_read(bp, phy,
9174 					MDIO_PMA_DEVAD,
9175 					MDIO_PMA_REG_8727_PCS_GP, &val);
9176 			val |= (3<<10);
9177 			bnx2x_cl45_write(bp, phy,
9178 					 MDIO_PMA_DEVAD,
9179 					 MDIO_PMA_REG_8727_PCS_GP, val);
9180 		}
9181 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9182 		   ((phy->speed_cap_mask &
9183 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) &&
9184 		   ((phy->speed_cap_mask &
9185 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
9186 		   PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
9187 
9188 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
9189 		bnx2x_cl45_write(bp, phy,
9190 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL, 0);
9191 		bnx2x_cl45_write(bp, phy,
9192 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1300);
9193 	} else {
9194 		/* Since the 8727 has only single reset pin, need to set the 10G
9195 		 * registers although it is default
9196 		 */
9197 		bnx2x_cl45_write(bp, phy,
9198 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL,
9199 				 0x0020);
9200 		bnx2x_cl45_write(bp, phy,
9201 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x0100);
9202 		bnx2x_cl45_write(bp, phy,
9203 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
9204 		bnx2x_cl45_write(bp, phy,
9205 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2,
9206 				 0x0008);
9207 	}
9208 }
9209 
bnx2x_8727_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9210 static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
9211 				  struct link_params *params,
9212 				  struct link_vars *vars)
9213 {
9214 	u32 tx_en_mode;
9215 	u16 tmp1, mod_abs, tmp2;
9216 	struct bnx2x *bp = params->bp;
9217 	/* Enable PMD link, MOD_ABS_FLT, and 1G link alarm */
9218 
9219 	bnx2x_wait_reset_complete(bp, phy, params);
9220 
9221 	DP(NETIF_MSG_LINK, "Initializing BCM8727\n");
9222 
9223 	bnx2x_8727_specific_func(phy, params, PHY_INIT);
9224 	/* Initially configure MOD_ABS to interrupt when module is
9225 	 * presence( bit 8)
9226 	 */
9227 	bnx2x_cl45_read(bp, phy,
9228 			MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
9229 	/* Set EDC off by setting OPTXLOS signal input to low (bit 9).
9230 	 * When the EDC is off it locks onto a reference clock and avoids
9231 	 * becoming 'lost'
9232 	 */
9233 	mod_abs &= ~(1<<8);
9234 	if (!(phy->flags & FLAGS_NOC))
9235 		mod_abs &= ~(1<<9);
9236 	bnx2x_cl45_write(bp, phy,
9237 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9238 
9239 	/* Enable/Disable PHY transmitter output */
9240 	bnx2x_set_disable_pmd_transmit(params, phy, 0);
9241 
9242 	bnx2x_8727_power_module(bp, phy, 1);
9243 
9244 	bnx2x_cl45_read(bp, phy,
9245 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
9246 
9247 	bnx2x_cl45_read(bp, phy,
9248 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
9249 
9250 	bnx2x_8727_config_speed(phy, params);
9251 
9252 
9253 	/* Set TX PreEmphasis if needed */
9254 	if ((params->feature_config_flags &
9255 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
9256 		DP(NETIF_MSG_LINK, "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
9257 			   phy->tx_preemphasis[0],
9258 			   phy->tx_preemphasis[1]);
9259 		bnx2x_cl45_write(bp, phy,
9260 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL1,
9261 				 phy->tx_preemphasis[0]);
9262 
9263 		bnx2x_cl45_write(bp, phy,
9264 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL2,
9265 				 phy->tx_preemphasis[1]);
9266 	}
9267 
9268 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
9269 	 * power mode, if TX Laser is disabled
9270 	 */
9271 	tx_en_mode = REG_RD(bp, params->shmem_base +
9272 			    offsetof(struct shmem_region,
9273 				dev_info.port_hw_config[params->port].sfp_ctrl))
9274 			& PORT_HW_CFG_TX_LASER_MASK;
9275 
9276 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
9277 
9278 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
9279 		bnx2x_cl45_read(bp, phy,
9280 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, &tmp2);
9281 		tmp2 |= 0x1000;
9282 		tmp2 &= 0xFFEF;
9283 		bnx2x_cl45_write(bp, phy,
9284 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, tmp2);
9285 		bnx2x_cl45_read(bp, phy,
9286 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
9287 				&tmp2);
9288 		bnx2x_cl45_write(bp, phy,
9289 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
9290 				 (tmp2 & 0x7fff));
9291 	}
9292 
9293 	return 0;
9294 }
9295 
bnx2x_8727_handle_mod_abs(struct bnx2x_phy * phy,struct link_params * params)9296 static void bnx2x_8727_handle_mod_abs(struct bnx2x_phy *phy,
9297 				      struct link_params *params)
9298 {
9299 	struct bnx2x *bp = params->bp;
9300 	u16 mod_abs, rx_alarm_status;
9301 	u32 val = REG_RD(bp, params->shmem_base +
9302 			     offsetof(struct shmem_region, dev_info.
9303 				      port_feature_config[params->port].
9304 				      config));
9305 	bnx2x_cl45_read(bp, phy,
9306 			MDIO_PMA_DEVAD,
9307 			MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
9308 	if (mod_abs & (1<<8)) {
9309 
9310 		/* Module is absent */
9311 		DP(NETIF_MSG_LINK,
9312 		   "MOD_ABS indication show module is absent\n");
9313 		phy->media_type = ETH_PHY_NOT_PRESENT;
9314 		/* 1. Set mod_abs to detect next module
9315 		 *    presence event
9316 		 * 2. Set EDC off by setting OPTXLOS signal input to low
9317 		 *    (bit 9).
9318 		 *    When the EDC is off it locks onto a reference clock and
9319 		 *    avoids becoming 'lost'.
9320 		 */
9321 		mod_abs &= ~(1<<8);
9322 		if (!(phy->flags & FLAGS_NOC))
9323 			mod_abs &= ~(1<<9);
9324 		bnx2x_cl45_write(bp, phy,
9325 				 MDIO_PMA_DEVAD,
9326 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9327 
9328 		/* Clear RX alarm since it stays up as long as
9329 		 * the mod_abs wasn't changed
9330 		 */
9331 		bnx2x_cl45_read(bp, phy,
9332 				MDIO_PMA_DEVAD,
9333 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9334 
9335 	} else {
9336 		/* Module is present */
9337 		DP(NETIF_MSG_LINK,
9338 		   "MOD_ABS indication show module is present\n");
9339 		/* First disable transmitter, and if the module is ok, the
9340 		 * module_detection will enable it
9341 		 * 1. Set mod_abs to detect next module absent event ( bit 8)
9342 		 * 2. Restore the default polarity of the OPRXLOS signal and
9343 		 * this signal will then correctly indicate the presence or
9344 		 * absence of the Rx signal. (bit 9)
9345 		 */
9346 		mod_abs |= (1<<8);
9347 		if (!(phy->flags & FLAGS_NOC))
9348 			mod_abs |= (1<<9);
9349 		bnx2x_cl45_write(bp, phy,
9350 				 MDIO_PMA_DEVAD,
9351 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9352 
9353 		/* Clear RX alarm since it stays up as long as the mod_abs
9354 		 * wasn't changed. This is need to be done before calling the
9355 		 * module detection, otherwise it will clear* the link update
9356 		 * alarm
9357 		 */
9358 		bnx2x_cl45_read(bp, phy,
9359 				MDIO_PMA_DEVAD,
9360 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9361 
9362 
9363 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9364 		    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER)
9365 			bnx2x_sfp_set_transmitter(params, phy, 0);
9366 
9367 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0)
9368 			bnx2x_sfp_module_detection(phy, params);
9369 		else
9370 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
9371 
9372 		/* Reconfigure link speed based on module type limitations */
9373 		bnx2x_8727_config_speed(phy, params);
9374 	}
9375 
9376 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS 0x%x\n",
9377 		   rx_alarm_status);
9378 	/* No need to check link status in case of module plugged in/out */
9379 }
9380 
bnx2x_8727_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9381 static u8 bnx2x_8727_read_status(struct bnx2x_phy *phy,
9382 				 struct link_params *params,
9383 				 struct link_vars *vars)
9384 
9385 {
9386 	struct bnx2x *bp = params->bp;
9387 	u8 link_up = 0, oc_port = params->port;
9388 	u16 link_status = 0;
9389 	u16 rx_alarm_status, lasi_ctrl, val1;
9390 
9391 	/* If PHY is not initialized, do not check link status */
9392 	bnx2x_cl45_read(bp, phy,
9393 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
9394 			&lasi_ctrl);
9395 	if (!lasi_ctrl)
9396 		return 0;
9397 
9398 	/* Check the LASI on Rx */
9399 	bnx2x_cl45_read(bp, phy,
9400 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT,
9401 			&rx_alarm_status);
9402 	vars->line_speed = 0;
9403 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS  0x%x\n", rx_alarm_status);
9404 
9405 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
9406 			     MDIO_PMA_LASI_TXCTRL);
9407 
9408 	bnx2x_cl45_read(bp, phy,
9409 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
9410 
9411 	DP(NETIF_MSG_LINK, "8727 LASI status 0x%x\n", val1);
9412 
9413 	/* Clear MSG-OUT */
9414 	bnx2x_cl45_read(bp, phy,
9415 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
9416 
9417 	/* If a module is present and there is need to check
9418 	 * for over current
9419 	 */
9420 	if (!(phy->flags & FLAGS_NOC) && !(rx_alarm_status & (1<<5))) {
9421 		/* Check over-current using 8727 GPIO0 input*/
9422 		bnx2x_cl45_read(bp, phy,
9423 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_GPIO_CTRL,
9424 				&val1);
9425 
9426 		if ((val1 & (1<<8)) == 0) {
9427 			if (!CHIP_IS_E1x(bp))
9428 				oc_port = BP_PATH(bp) + (params->port << 1);
9429 			DP(NETIF_MSG_LINK,
9430 			   "8727 Power fault has been detected on port %d\n",
9431 			   oc_port);
9432 			netdev_err(bp->dev, "Error: Power fault on Port %d has "
9433 					    "been detected and the power to "
9434 					    "that SFP+ module has been removed "
9435 					    "to prevent failure of the card. "
9436 					    "Please remove the SFP+ module and "
9437 					    "restart the system to clear this "
9438 					    "error.\n",
9439 			 oc_port);
9440 			/* Disable all RX_ALARMs except for mod_abs */
9441 			bnx2x_cl45_write(bp, phy,
9442 					 MDIO_PMA_DEVAD,
9443 					 MDIO_PMA_LASI_RXCTRL, (1<<5));
9444 
9445 			bnx2x_cl45_read(bp, phy,
9446 					MDIO_PMA_DEVAD,
9447 					MDIO_PMA_REG_PHY_IDENTIFIER, &val1);
9448 			/* Wait for module_absent_event */
9449 			val1 |= (1<<8);
9450 			bnx2x_cl45_write(bp, phy,
9451 					 MDIO_PMA_DEVAD,
9452 					 MDIO_PMA_REG_PHY_IDENTIFIER, val1);
9453 			/* Clear RX alarm */
9454 			bnx2x_cl45_read(bp, phy,
9455 				MDIO_PMA_DEVAD,
9456 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9457 			bnx2x_8727_power_module(params->bp, phy, 0);
9458 			return 0;
9459 		}
9460 	} /* Over current check */
9461 
9462 	/* When module absent bit is set, check module */
9463 	if (rx_alarm_status & (1<<5)) {
9464 		bnx2x_8727_handle_mod_abs(phy, params);
9465 		/* Enable all mod_abs and link detection bits */
9466 		bnx2x_cl45_write(bp, phy,
9467 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9468 				 ((1<<5) | (1<<2)));
9469 	}
9470 
9471 	if (!(phy->flags & FLAGS_SFP_NOT_APPROVED)) {
9472 		DP(NETIF_MSG_LINK, "Enabling 8727 TX laser\n");
9473 		bnx2x_sfp_set_transmitter(params, phy, 1);
9474 	} else {
9475 		DP(NETIF_MSG_LINK, "Tx is disabled\n");
9476 		return 0;
9477 	}
9478 
9479 	bnx2x_cl45_read(bp, phy,
9480 			MDIO_PMA_DEVAD,
9481 			MDIO_PMA_REG_8073_SPEED_LINK_STATUS, &link_status);
9482 
9483 	/* Bits 0..2 --> speed detected,
9484 	 * Bits 13..15--> link is down
9485 	 */
9486 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
9487 		link_up = 1;
9488 		vars->line_speed = SPEED_10000;
9489 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
9490 			   params->port);
9491 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
9492 		link_up = 1;
9493 		vars->line_speed = SPEED_1000;
9494 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
9495 			   params->port);
9496 	} else {
9497 		link_up = 0;
9498 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
9499 			   params->port);
9500 	}
9501 
9502 	/* Capture 10G link fault. */
9503 	if (vars->line_speed == SPEED_10000) {
9504 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9505 			    MDIO_PMA_LASI_TXSTAT, &val1);
9506 
9507 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9508 			    MDIO_PMA_LASI_TXSTAT, &val1);
9509 
9510 		if (val1 & (1<<0)) {
9511 			vars->fault_detected = 1;
9512 		}
9513 	}
9514 
9515 	if (link_up) {
9516 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
9517 		vars->duplex = DUPLEX_FULL;
9518 		DP(NETIF_MSG_LINK, "duplex = 0x%x\n", vars->duplex);
9519 	}
9520 
9521 	if ((DUAL_MEDIA(params)) &&
9522 	    (phy->req_line_speed == SPEED_1000)) {
9523 		bnx2x_cl45_read(bp, phy,
9524 				MDIO_PMA_DEVAD,
9525 				MDIO_PMA_REG_8727_PCS_GP, &val1);
9526 		/* In case of dual-media board and 1G, power up the XAUI side,
9527 		 * otherwise power it down. For 10G it is done automatically
9528 		 */
9529 		if (link_up)
9530 			val1 &= ~(3<<10);
9531 		else
9532 			val1 |= (3<<10);
9533 		bnx2x_cl45_write(bp, phy,
9534 				 MDIO_PMA_DEVAD,
9535 				 MDIO_PMA_REG_8727_PCS_GP, val1);
9536 	}
9537 	return link_up;
9538 }
9539 
bnx2x_8727_link_reset(struct bnx2x_phy * phy,struct link_params * params)9540 static void bnx2x_8727_link_reset(struct bnx2x_phy *phy,
9541 				  struct link_params *params)
9542 {
9543 	struct bnx2x *bp = params->bp;
9544 
9545 	/* Enable/Disable PHY transmitter output */
9546 	bnx2x_set_disable_pmd_transmit(params, phy, 1);
9547 
9548 	/* Disable Transmitter */
9549 	bnx2x_sfp_set_transmitter(params, phy, 0);
9550 	/* Clear LASI */
9551 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0);
9552 
9553 }
9554 
9555 /******************************************************************/
9556 /*		BCM8481/BCM84823/BCM84833 PHY SECTION	          */
9557 /******************************************************************/
bnx2x_save_848xx_spirom_version(struct bnx2x_phy * phy,struct bnx2x * bp,u8 port)9558 static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy,
9559 					    struct bnx2x *bp,
9560 					    u8 port)
9561 {
9562 	u16 val, fw_ver2, cnt, i;
9563 	static struct bnx2x_reg_set reg_set[] = {
9564 		{MDIO_PMA_DEVAD, 0xA819, 0x0014},
9565 		{MDIO_PMA_DEVAD, 0xA81A, 0xc200},
9566 		{MDIO_PMA_DEVAD, 0xA81B, 0x0000},
9567 		{MDIO_PMA_DEVAD, 0xA81C, 0x0300},
9568 		{MDIO_PMA_DEVAD, 0xA817, 0x0009}
9569 	};
9570 	u16 fw_ver1;
9571 
9572 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
9573 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
9574 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1);
9575 		bnx2x_save_spirom_version(bp, port, fw_ver1 & 0xfff,
9576 				phy->ver_addr);
9577 	} else {
9578 		/* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */
9579 		/* (1) set reg 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
9580 		for (i = 0; i < ARRAY_SIZE(reg_set); i++)
9581 			bnx2x_cl45_write(bp, phy, reg_set[i].devad,
9582 					 reg_set[i].reg, reg_set[i].val);
9583 
9584 		for (cnt = 0; cnt < 100; cnt++) {
9585 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9586 			if (val & 1)
9587 				break;
9588 			udelay(5);
9589 		}
9590 		if (cnt == 100) {
9591 			DP(NETIF_MSG_LINK, "Unable to read 848xx "
9592 					"phy fw version(1)\n");
9593 			bnx2x_save_spirom_version(bp, port, 0,
9594 						  phy->ver_addr);
9595 			return;
9596 		}
9597 
9598 
9599 		/* 2) read register 0xc200_0000 (SPI_FW_STATUS) */
9600 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA819, 0x0000);
9601 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81A, 0xc200);
9602 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA817, 0x000A);
9603 		for (cnt = 0; cnt < 100; cnt++) {
9604 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9605 			if (val & 1)
9606 				break;
9607 			udelay(5);
9608 		}
9609 		if (cnt == 100) {
9610 			DP(NETIF_MSG_LINK, "Unable to read 848xx phy fw "
9611 					"version(2)\n");
9612 			bnx2x_save_spirom_version(bp, port, 0,
9613 						  phy->ver_addr);
9614 			return;
9615 		}
9616 
9617 		/* lower 16 bits of the register SPI_FW_STATUS */
9618 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81B, &fw_ver1);
9619 		/* upper 16 bits of register SPI_FW_STATUS */
9620 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81C, &fw_ver2);
9621 
9622 		bnx2x_save_spirom_version(bp, port, (fw_ver2<<16) | fw_ver1,
9623 					  phy->ver_addr);
9624 	}
9625 
9626 }
bnx2x_848xx_set_led(struct bnx2x * bp,struct bnx2x_phy * phy)9627 static void bnx2x_848xx_set_led(struct bnx2x *bp,
9628 				struct bnx2x_phy *phy)
9629 {
9630 	u16 val, offset, i;
9631 	static struct bnx2x_reg_set reg_set[] = {
9632 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED1_MASK, 0x0080},
9633 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED2_MASK, 0x0018},
9634 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_MASK, 0x0006},
9635 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_BLINK, 0x0000},
9636 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_84823_CTL_SLOW_CLK_CNT_HIGH,
9637 			MDIO_PMA_REG_84823_BLINK_RATE_VAL_15P9HZ},
9638 		{MDIO_AN_DEVAD, 0xFFFB, 0xFFFD}
9639 	};
9640 	/* PHYC_CTL_LED_CTL */
9641 	bnx2x_cl45_read(bp, phy,
9642 			MDIO_PMA_DEVAD,
9643 			MDIO_PMA_REG_8481_LINK_SIGNAL, &val);
9644 	val &= 0xFE00;
9645 	val |= 0x0092;
9646 
9647 	bnx2x_cl45_write(bp, phy,
9648 			 MDIO_PMA_DEVAD,
9649 			 MDIO_PMA_REG_8481_LINK_SIGNAL, val);
9650 
9651 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
9652 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
9653 				 reg_set[i].val);
9654 
9655 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
9656 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834))
9657 		offset = MDIO_PMA_REG_84833_CTL_LED_CTL_1;
9658 	else
9659 		offset = MDIO_PMA_REG_84823_CTL_LED_CTL_1;
9660 
9661 	/* stretch_en for LED3*/
9662 	bnx2x_cl45_read_or_write(bp, phy,
9663 				 MDIO_PMA_DEVAD, offset,
9664 				 MDIO_PMA_REG_84823_LED3_STRETCH_EN);
9665 }
9666 
bnx2x_848xx_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)9667 static void bnx2x_848xx_specific_func(struct bnx2x_phy *phy,
9668 				      struct link_params *params,
9669 				      u32 action)
9670 {
9671 	struct bnx2x *bp = params->bp;
9672 	switch (action) {
9673 	case PHY_INIT:
9674 		if ((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
9675 		    (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
9676 			/* Save spirom version */
9677 			bnx2x_save_848xx_spirom_version(phy, bp, params->port);
9678 		}
9679 		/* This phy uses the NIG latch mechanism since link indication
9680 		 * arrives through its LED4 and not via its LASI signal, so we
9681 		 * get steady signal instead of clear on read
9682 		 */
9683 		bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4,
9684 			      1 << NIG_LATCH_BC_ENABLE_MI_INT);
9685 
9686 		bnx2x_848xx_set_led(bp, phy);
9687 		break;
9688 	}
9689 }
9690 
bnx2x_848xx_cmn_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9691 static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
9692 				       struct link_params *params,
9693 				       struct link_vars *vars)
9694 {
9695 	struct bnx2x *bp = params->bp;
9696 	u16 autoneg_val, an_1000_val, an_10_100_val;
9697 
9698 	bnx2x_848xx_specific_func(phy, params, PHY_INIT);
9699 	bnx2x_cl45_write(bp, phy,
9700 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0000);
9701 
9702 	/* set 1000 speed advertisement */
9703 	bnx2x_cl45_read(bp, phy,
9704 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9705 			&an_1000_val);
9706 
9707 	bnx2x_ext_phy_set_pause(params, phy, vars);
9708 	bnx2x_cl45_read(bp, phy,
9709 			MDIO_AN_DEVAD,
9710 			MDIO_AN_REG_8481_LEGACY_AN_ADV,
9711 			&an_10_100_val);
9712 	bnx2x_cl45_read(bp, phy,
9713 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_MII_CTRL,
9714 			&autoneg_val);
9715 	/* Disable forced speed */
9716 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
9717 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8));
9718 
9719 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9720 	     (phy->speed_cap_mask &
9721 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
9722 	    (phy->req_line_speed == SPEED_1000)) {
9723 		an_1000_val |= (1<<8);
9724 		autoneg_val |= (1<<9 | 1<<12);
9725 		if (phy->req_duplex == DUPLEX_FULL)
9726 			an_1000_val |= (1<<9);
9727 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
9728 	} else
9729 		an_1000_val &= ~((1<<8) | (1<<9));
9730 
9731 	bnx2x_cl45_write(bp, phy,
9732 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9733 			 an_1000_val);
9734 
9735 	/* set 100 speed advertisement */
9736 	if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9737 	     (phy->speed_cap_mask &
9738 	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
9739 	       PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))) {
9740 		an_10_100_val |= (1<<7);
9741 		/* Enable autoneg and restart autoneg for legacy speeds */
9742 		autoneg_val |= (1<<9 | 1<<12);
9743 
9744 		if (phy->req_duplex == DUPLEX_FULL)
9745 			an_10_100_val |= (1<<8);
9746 		DP(NETIF_MSG_LINK, "Advertising 100M\n");
9747 	}
9748 	/* set 10 speed advertisement */
9749 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9750 	     (phy->speed_cap_mask &
9751 	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
9752 	       PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)) &&
9753 	     (phy->supported &
9754 	      (SUPPORTED_10baseT_Half |
9755 	       SUPPORTED_10baseT_Full)))) {
9756 		an_10_100_val |= (1<<5);
9757 		autoneg_val |= (1<<9 | 1<<12);
9758 		if (phy->req_duplex == DUPLEX_FULL)
9759 			an_10_100_val |= (1<<6);
9760 		DP(NETIF_MSG_LINK, "Advertising 10M\n");
9761 	}
9762 
9763 	/* Only 10/100 are allowed to work in FORCE mode */
9764 	if ((phy->req_line_speed == SPEED_100) &&
9765 	    (phy->supported &
9766 	     (SUPPORTED_100baseT_Half |
9767 	      SUPPORTED_100baseT_Full))) {
9768 		autoneg_val |= (1<<13);
9769 		/* Enabled AUTO-MDIX when autoneg is disabled */
9770 		bnx2x_cl45_write(bp, phy,
9771 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9772 				 (1<<15 | 1<<9 | 7<<0));
9773 		/* The PHY needs this set even for forced link. */
9774 		an_10_100_val |= (1<<8) | (1<<7);
9775 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
9776 	}
9777 	if ((phy->req_line_speed == SPEED_10) &&
9778 	    (phy->supported &
9779 	     (SUPPORTED_10baseT_Half |
9780 	      SUPPORTED_10baseT_Full))) {
9781 		/* Enabled AUTO-MDIX when autoneg is disabled */
9782 		bnx2x_cl45_write(bp, phy,
9783 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9784 				 (1<<15 | 1<<9 | 7<<0));
9785 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
9786 	}
9787 
9788 	bnx2x_cl45_write(bp, phy,
9789 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_AN_ADV,
9790 			 an_10_100_val);
9791 
9792 	if (phy->req_duplex == DUPLEX_FULL)
9793 		autoneg_val |= (1<<8);
9794 
9795 	/* Always write this if this is not 84833/4.
9796 	 * For 84833/4, write it only when it's a forced speed.
9797 	 */
9798 	if (((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
9799 	     (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) ||
9800 	    ((autoneg_val & (1<<12)) == 0))
9801 		bnx2x_cl45_write(bp, phy,
9802 			 MDIO_AN_DEVAD,
9803 			 MDIO_AN_REG_8481_LEGACY_MII_CTRL, autoneg_val);
9804 
9805 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9806 	    (phy->speed_cap_mask &
9807 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
9808 		(phy->req_line_speed == SPEED_10000)) {
9809 			DP(NETIF_MSG_LINK, "Advertising 10G\n");
9810 			/* Restart autoneg for 10G*/
9811 
9812 			bnx2x_cl45_read_or_write(
9813 				bp, phy,
9814 				MDIO_AN_DEVAD,
9815 				MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9816 				0x1000);
9817 			bnx2x_cl45_write(bp, phy,
9818 					 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL,
9819 					 0x3200);
9820 	} else
9821 		bnx2x_cl45_write(bp, phy,
9822 				 MDIO_AN_DEVAD,
9823 				 MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9824 				 1);
9825 
9826 	return 0;
9827 }
9828 
bnx2x_8481_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9829 static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
9830 				  struct link_params *params,
9831 				  struct link_vars *vars)
9832 {
9833 	struct bnx2x *bp = params->bp;
9834 	/* Restore normal power mode*/
9835 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
9836 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
9837 
9838 	/* HW reset */
9839 	bnx2x_ext_phy_hw_reset(bp, params->port);
9840 	bnx2x_wait_reset_complete(bp, phy, params);
9841 
9842 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
9843 	return bnx2x_848xx_cmn_config_init(phy, params, vars);
9844 }
9845 
9846 #define PHY84833_CMDHDLR_WAIT 300
9847 #define PHY84833_CMDHDLR_MAX_ARGS 5
bnx2x_84833_cmd_hdlr(struct bnx2x_phy * phy,struct link_params * params,u16 fw_cmd,u16 cmd_args[],int argc)9848 static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
9849 				struct link_params *params, u16 fw_cmd,
9850 				u16 cmd_args[], int argc)
9851 {
9852 	int idx;
9853 	u16 val;
9854 	struct bnx2x *bp = params->bp;
9855 	/* Write CMD_OPEN_OVERRIDE to STATUS reg */
9856 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9857 			MDIO_84833_CMD_HDLR_STATUS,
9858 			PHY84833_STATUS_CMD_OPEN_OVERRIDE);
9859 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
9860 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9861 				MDIO_84833_CMD_HDLR_STATUS, &val);
9862 		if (val == PHY84833_STATUS_CMD_OPEN_FOR_CMDS)
9863 			break;
9864 		usleep_range(1000, 2000);
9865 	}
9866 	if (idx >= PHY84833_CMDHDLR_WAIT) {
9867 		DP(NETIF_MSG_LINK, "FW cmd: FW not ready.\n");
9868 		return -EINVAL;
9869 	}
9870 
9871 	/* Prepare argument(s) and issue command */
9872 	for (idx = 0; idx < argc; idx++) {
9873 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9874 				MDIO_84833_CMD_HDLR_DATA1 + idx,
9875 				cmd_args[idx]);
9876 	}
9877 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9878 			MDIO_84833_CMD_HDLR_COMMAND, fw_cmd);
9879 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
9880 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9881 				MDIO_84833_CMD_HDLR_STATUS, &val);
9882 		if ((val == PHY84833_STATUS_CMD_COMPLETE_PASS) ||
9883 			(val == PHY84833_STATUS_CMD_COMPLETE_ERROR))
9884 			break;
9885 		usleep_range(1000, 2000);
9886 	}
9887 	if ((idx >= PHY84833_CMDHDLR_WAIT) ||
9888 		(val == PHY84833_STATUS_CMD_COMPLETE_ERROR)) {
9889 		DP(NETIF_MSG_LINK, "FW cmd failed.\n");
9890 		return -EINVAL;
9891 	}
9892 	/* Gather returning data */
9893 	for (idx = 0; idx < argc; idx++) {
9894 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9895 				MDIO_84833_CMD_HDLR_DATA1 + idx,
9896 				&cmd_args[idx]);
9897 	}
9898 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9899 			MDIO_84833_CMD_HDLR_STATUS,
9900 			PHY84833_STATUS_CMD_CLEAR_COMPLETE);
9901 	return 0;
9902 }
9903 
bnx2x_84833_pair_swap_cfg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9904 static int bnx2x_84833_pair_swap_cfg(struct bnx2x_phy *phy,
9905 				   struct link_params *params,
9906 				   struct link_vars *vars)
9907 {
9908 	u32 pair_swap;
9909 	u16 data[PHY84833_CMDHDLR_MAX_ARGS];
9910 	int status;
9911 	struct bnx2x *bp = params->bp;
9912 
9913 	/* Check for configuration. */
9914 	pair_swap = REG_RD(bp, params->shmem_base +
9915 			   offsetof(struct shmem_region,
9916 			dev_info.port_hw_config[params->port].xgbt_phy_cfg)) &
9917 		PORT_HW_CFG_RJ45_PAIR_SWAP_MASK;
9918 
9919 	if (pair_swap == 0)
9920 		return 0;
9921 
9922 	/* Only the second argument is used for this command */
9923 	data[1] = (u16)pair_swap;
9924 
9925 	status = bnx2x_84833_cmd_hdlr(phy, params,
9926 		PHY84833_CMD_SET_PAIR_SWAP, data, PHY84833_CMDHDLR_MAX_ARGS);
9927 	if (status == 0)
9928 		DP(NETIF_MSG_LINK, "Pairswap OK, val=0x%x\n", data[1]);
9929 
9930 	return status;
9931 }
9932 
bnx2x_84833_get_reset_gpios(struct bnx2x * bp,u32 shmem_base_path[],u32 chip_id)9933 static u8 bnx2x_84833_get_reset_gpios(struct bnx2x *bp,
9934 				      u32 shmem_base_path[],
9935 				      u32 chip_id)
9936 {
9937 	u32 reset_pin[2];
9938 	u32 idx;
9939 	u8 reset_gpios;
9940 	if (CHIP_IS_E3(bp)) {
9941 		/* Assume that these will be GPIOs, not EPIOs. */
9942 		for (idx = 0; idx < 2; idx++) {
9943 			/* Map config param to register bit. */
9944 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
9945 				offsetof(struct shmem_region,
9946 				dev_info.port_hw_config[0].e3_cmn_pin_cfg));
9947 			reset_pin[idx] = (reset_pin[idx] &
9948 				PORT_HW_CFG_E3_PHY_RESET_MASK) >>
9949 				PORT_HW_CFG_E3_PHY_RESET_SHIFT;
9950 			reset_pin[idx] -= PIN_CFG_GPIO0_P0;
9951 			reset_pin[idx] = (1 << reset_pin[idx]);
9952 		}
9953 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
9954 	} else {
9955 		/* E2, look from diff place of shmem. */
9956 		for (idx = 0; idx < 2; idx++) {
9957 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
9958 				offsetof(struct shmem_region,
9959 				dev_info.port_hw_config[0].default_cfg));
9960 			reset_pin[idx] &= PORT_HW_CFG_EXT_PHY_GPIO_RST_MASK;
9961 			reset_pin[idx] -= PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0;
9962 			reset_pin[idx] >>= PORT_HW_CFG_EXT_PHY_GPIO_RST_SHIFT;
9963 			reset_pin[idx] = (1 << reset_pin[idx]);
9964 		}
9965 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
9966 	}
9967 
9968 	return reset_gpios;
9969 }
9970 
bnx2x_84833_hw_reset_phy(struct bnx2x_phy * phy,struct link_params * params)9971 static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
9972 				struct link_params *params)
9973 {
9974 	struct bnx2x *bp = params->bp;
9975 	u8 reset_gpios;
9976 	u32 other_shmem_base_addr = REG_RD(bp, params->shmem2_base +
9977 				offsetof(struct shmem2_region,
9978 				other_shmem_base_addr));
9979 
9980 	u32 shmem_base_path[2];
9981 
9982 	/* Work around for 84833 LED failure inside RESET status */
9983 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
9984 		MDIO_AN_REG_8481_LEGACY_MII_CTRL,
9985 		MDIO_AN_REG_8481_MII_CTRL_FORCE_1G);
9986 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
9987 		MDIO_AN_REG_8481_1G_100T_EXT_CTRL,
9988 		MIDO_AN_REG_8481_EXT_CTRL_FORCE_LEDS_OFF);
9989 
9990 	shmem_base_path[0] = params->shmem_base;
9991 	shmem_base_path[1] = other_shmem_base_addr;
9992 
9993 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path,
9994 						  params->chip_id);
9995 
9996 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
9997 	udelay(10);
9998 	DP(NETIF_MSG_LINK, "84833 hw reset on pin values 0x%x\n",
9999 		reset_gpios);
10000 
10001 	return 0;
10002 }
10003 
bnx2x_8483x_disable_eee(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10004 static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
10005 				   struct link_params *params,
10006 				   struct link_vars *vars)
10007 {
10008 	int rc;
10009 	struct bnx2x *bp = params->bp;
10010 	u16 cmd_args = 0;
10011 
10012 	DP(NETIF_MSG_LINK, "Don't Advertise 10GBase-T EEE\n");
10013 
10014 	/* Prevent Phy from working in EEE and advertising it */
10015 	rc = bnx2x_84833_cmd_hdlr(phy, params,
10016 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
10017 	if (rc) {
10018 		DP(NETIF_MSG_LINK, "EEE disable failed.\n");
10019 		return rc;
10020 	}
10021 
10022 	return bnx2x_eee_disable(phy, params, vars);
10023 }
10024 
bnx2x_8483x_enable_eee(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10025 static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
10026 				   struct link_params *params,
10027 				   struct link_vars *vars)
10028 {
10029 	int rc;
10030 	struct bnx2x *bp = params->bp;
10031 	u16 cmd_args = 1;
10032 
10033 	rc = bnx2x_84833_cmd_hdlr(phy, params,
10034 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
10035 	if (rc) {
10036 		DP(NETIF_MSG_LINK, "EEE enable failed.\n");
10037 		return rc;
10038 	}
10039 
10040 	return bnx2x_eee_advertise(phy, params, vars, SHMEM_EEE_10G_ADV);
10041 }
10042 
10043 #define PHY84833_CONSTANT_LATENCY 1193
bnx2x_848x3_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10044 static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
10045 				   struct link_params *params,
10046 				   struct link_vars *vars)
10047 {
10048 	struct bnx2x *bp = params->bp;
10049 	u8 port, initialize = 1;
10050 	u16 val;
10051 	u32 actual_phy_selection;
10052 	u16 cmd_args[PHY84833_CMDHDLR_MAX_ARGS];
10053 	int rc = 0;
10054 
10055 	usleep_range(1000, 2000);
10056 
10057 	if (!(CHIP_IS_E1x(bp)))
10058 		port = BP_PATH(bp);
10059 	else
10060 		port = params->port;
10061 
10062 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10063 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
10064 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
10065 			       port);
10066 	} else {
10067 		/* MDIO reset */
10068 		bnx2x_cl45_write(bp, phy,
10069 				MDIO_PMA_DEVAD,
10070 				MDIO_PMA_REG_CTRL, 0x8000);
10071 	}
10072 
10073 	bnx2x_wait_reset_complete(bp, phy, params);
10074 
10075 	/* Wait for GPHY to come out of reset */
10076 	msleep(50);
10077 	if ((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
10078 	    (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
10079 		/* BCM84823 requires that XGXS links up first @ 10G for normal
10080 		 * behavior.
10081 		 */
10082 		u16 temp;
10083 		temp = vars->line_speed;
10084 		vars->line_speed = SPEED_10000;
10085 		bnx2x_set_autoneg(&params->phy[INT_PHY], params, vars, 0);
10086 		bnx2x_program_serdes(&params->phy[INT_PHY], params, vars);
10087 		vars->line_speed = temp;
10088 	}
10089 
10090 	bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10091 			MDIO_CTL_REG_84823_MEDIA, &val);
10092 	val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
10093 		 MDIO_CTL_REG_84823_MEDIA_LINE_MASK |
10094 		 MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN |
10095 		 MDIO_CTL_REG_84823_MEDIA_PRIORITY_MASK |
10096 		 MDIO_CTL_REG_84823_MEDIA_FIBER_1G);
10097 
10098 	if (CHIP_IS_E3(bp)) {
10099 		val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
10100 			 MDIO_CTL_REG_84823_MEDIA_LINE_MASK);
10101 	} else {
10102 		val |= (MDIO_CTL_REG_84823_CTRL_MAC_XFI |
10103 			MDIO_CTL_REG_84823_MEDIA_LINE_XAUI_L);
10104 	}
10105 
10106 	actual_phy_selection = bnx2x_phy_selection(params);
10107 
10108 	switch (actual_phy_selection) {
10109 	case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
10110 		/* Do nothing. Essentially this is like the priority copper */
10111 		break;
10112 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
10113 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_COPPER;
10114 		break;
10115 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
10116 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_FIBER;
10117 		break;
10118 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
10119 		/* Do nothing here. The first PHY won't be initialized at all */
10120 		break;
10121 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
10122 		val |= MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN;
10123 		initialize = 0;
10124 		break;
10125 	}
10126 	if (params->phy[EXT_PHY2].req_line_speed == SPEED_1000)
10127 		val |= MDIO_CTL_REG_84823_MEDIA_FIBER_1G;
10128 
10129 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10130 			 MDIO_CTL_REG_84823_MEDIA, val);
10131 	DP(NETIF_MSG_LINK, "Multi_phy config = 0x%x, Media control = 0x%x\n",
10132 		   params->multi_phy_config, val);
10133 
10134 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
10135 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
10136 		bnx2x_84833_pair_swap_cfg(phy, params, vars);
10137 
10138 		/* Keep AutogrEEEn disabled. */
10139 		cmd_args[0] = 0x0;
10140 		cmd_args[1] = 0x0;
10141 		cmd_args[2] = PHY84833_CONSTANT_LATENCY + 1;
10142 		cmd_args[3] = PHY84833_CONSTANT_LATENCY;
10143 		rc = bnx2x_84833_cmd_hdlr(phy, params,
10144 			PHY84833_CMD_SET_EEE_MODE, cmd_args,
10145 			PHY84833_CMDHDLR_MAX_ARGS);
10146 		if (rc)
10147 			DP(NETIF_MSG_LINK, "Cfg AutogrEEEn failed.\n");
10148 	}
10149 	if (initialize)
10150 		rc = bnx2x_848xx_cmn_config_init(phy, params, vars);
10151 	else
10152 		bnx2x_save_848xx_spirom_version(phy, bp, params->port);
10153 	/* 84833 PHY has a better feature and doesn't need to support this. */
10154 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10155 		u32 cms_enable = REG_RD(bp, params->shmem_base +
10156 			offsetof(struct shmem_region,
10157 			dev_info.port_hw_config[params->port].default_cfg)) &
10158 			PORT_HW_CFG_ENABLE_CMS_MASK;
10159 
10160 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10161 				MDIO_CTL_REG_84823_USER_CTRL_REG, &val);
10162 		if (cms_enable)
10163 			val |= MDIO_CTL_REG_84823_USER_CTRL_CMS;
10164 		else
10165 			val &= ~MDIO_CTL_REG_84823_USER_CTRL_CMS;
10166 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
10167 				 MDIO_CTL_REG_84823_USER_CTRL_REG, val);
10168 	}
10169 
10170 	bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
10171 			MDIO_84833_TOP_CFG_FW_REV, &val);
10172 
10173 	/* Configure EEE support */
10174 	if ((val >= MDIO_84833_TOP_CFG_FW_EEE) &&
10175 	    (val != MDIO_84833_TOP_CFG_FW_NO_EEE) &&
10176 	    bnx2x_eee_has_cap(params)) {
10177 		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_10G_ADV);
10178 		if (rc) {
10179 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
10180 			bnx2x_8483x_disable_eee(phy, params, vars);
10181 			return rc;
10182 		}
10183 
10184 		if ((phy->req_duplex == DUPLEX_FULL) &&
10185 		    (params->eee_mode & EEE_MODE_ADV_LPI) &&
10186 		    (bnx2x_eee_calc_timer(params) ||
10187 		     !(params->eee_mode & EEE_MODE_ENABLE_LPI)))
10188 			rc = bnx2x_8483x_enable_eee(phy, params, vars);
10189 		else
10190 			rc = bnx2x_8483x_disable_eee(phy, params, vars);
10191 		if (rc) {
10192 			DP(NETIF_MSG_LINK, "Failed to set EEE advertisement\n");
10193 			return rc;
10194 		}
10195 	} else {
10196 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
10197 	}
10198 
10199 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
10200 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
10201 		/* Bring PHY out of super isolate mode as the final step. */
10202 		bnx2x_cl45_read_and_write(bp, phy,
10203 					  MDIO_CTL_DEVAD,
10204 					  MDIO_84833_TOP_CFG_XGPHY_STRAP1,
10205 					  (u16)~MDIO_84833_SUPER_ISOLATE);
10206 	}
10207 	return rc;
10208 }
10209 
bnx2x_848xx_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10210 static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
10211 				  struct link_params *params,
10212 				  struct link_vars *vars)
10213 {
10214 	struct bnx2x *bp = params->bp;
10215 	u16 val, val1, val2;
10216 	u8 link_up = 0;
10217 
10218 
10219 	/* Check 10G-BaseT link status */
10220 	/* Check PMD signal ok */
10221 	bnx2x_cl45_read(bp, phy,
10222 			MDIO_AN_DEVAD, 0xFFFA, &val1);
10223 	bnx2x_cl45_read(bp, phy,
10224 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_PMD_SIGNAL,
10225 			&val2);
10226 	DP(NETIF_MSG_LINK, "BCM848xx: PMD_SIGNAL 1.a811 = 0x%x\n", val2);
10227 
10228 	/* Check link 10G */
10229 	if (val2 & (1<<11)) {
10230 		vars->line_speed = SPEED_10000;
10231 		vars->duplex = DUPLEX_FULL;
10232 		link_up = 1;
10233 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
10234 	} else { /* Check Legacy speed link */
10235 		u16 legacy_status, legacy_speed;
10236 
10237 		/* Enable expansion register 0x42 (Operation mode status) */
10238 		bnx2x_cl45_write(bp, phy,
10239 				 MDIO_AN_DEVAD,
10240 				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf42);
10241 
10242 		/* Get legacy speed operation status */
10243 		bnx2x_cl45_read(bp, phy,
10244 				MDIO_AN_DEVAD,
10245 				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW,
10246 				&legacy_status);
10247 
10248 		DP(NETIF_MSG_LINK, "Legacy speed status = 0x%x\n",
10249 		   legacy_status);
10250 		link_up = ((legacy_status & (1<<11)) == (1<<11));
10251 		legacy_speed = (legacy_status & (3<<9));
10252 		if (legacy_speed == (0<<9))
10253 			vars->line_speed = SPEED_10;
10254 		else if (legacy_speed == (1<<9))
10255 			vars->line_speed = SPEED_100;
10256 		else if (legacy_speed == (2<<9))
10257 			vars->line_speed = SPEED_1000;
10258 		else { /* Should not happen: Treat as link down */
10259 			vars->line_speed = 0;
10260 			link_up = 0;
10261 		}
10262 
10263 		if (link_up) {
10264 			if (legacy_status & (1<<8))
10265 				vars->duplex = DUPLEX_FULL;
10266 			else
10267 				vars->duplex = DUPLEX_HALF;
10268 
10269 			DP(NETIF_MSG_LINK,
10270 			   "Link is up in %dMbps, is_duplex_full= %d\n",
10271 			   vars->line_speed,
10272 			   (vars->duplex == DUPLEX_FULL));
10273 			/* Check legacy speed AN resolution */
10274 			bnx2x_cl45_read(bp, phy,
10275 					MDIO_AN_DEVAD,
10276 					MDIO_AN_REG_8481_LEGACY_MII_STATUS,
10277 					&val);
10278 			if (val & (1<<5))
10279 				vars->link_status |=
10280 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
10281 			bnx2x_cl45_read(bp, phy,
10282 					MDIO_AN_DEVAD,
10283 					MDIO_AN_REG_8481_LEGACY_AN_EXPANSION,
10284 					&val);
10285 			if ((val & (1<<0)) == 0)
10286 				vars->link_status |=
10287 					LINK_STATUS_PARALLEL_DETECTION_USED;
10288 		}
10289 	}
10290 	if (link_up) {
10291 		DP(NETIF_MSG_LINK, "BCM848x3: link speed is %d\n",
10292 			   vars->line_speed);
10293 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
10294 
10295 		/* Read LP advertised speeds */
10296 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10297 				MDIO_AN_REG_CL37_FC_LP, &val);
10298 		if (val & (1<<5))
10299 			vars->link_status |=
10300 				LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
10301 		if (val & (1<<6))
10302 			vars->link_status |=
10303 				LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
10304 		if (val & (1<<7))
10305 			vars->link_status |=
10306 				LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
10307 		if (val & (1<<8))
10308 			vars->link_status |=
10309 				LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
10310 		if (val & (1<<9))
10311 			vars->link_status |=
10312 				LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
10313 
10314 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10315 				MDIO_AN_REG_1000T_STATUS, &val);
10316 
10317 		if (val & (1<<10))
10318 			vars->link_status |=
10319 				LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
10320 		if (val & (1<<11))
10321 			vars->link_status |=
10322 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
10323 
10324 		bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
10325 				MDIO_AN_REG_MASTER_STATUS, &val);
10326 
10327 		if (val & (1<<11))
10328 			vars->link_status |=
10329 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
10330 
10331 		/* Determine if EEE was negotiated */
10332 		if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
10333 		    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834))
10334 			bnx2x_eee_an_resolve(phy, params, vars);
10335 	}
10336 
10337 	return link_up;
10338 }
10339 
bnx2x_848xx_format_ver(u32 raw_ver,u8 * str,u16 * len)10340 static int bnx2x_848xx_format_ver(u32 raw_ver, u8 *str, u16 *len)
10341 {
10342 	int status = 0;
10343 	u32 spirom_ver;
10344 	spirom_ver = ((raw_ver & 0xF80) >> 7) << 16 | (raw_ver & 0x7F);
10345 	status = bnx2x_format_ver(spirom_ver, str, len);
10346 	return status;
10347 }
10348 
bnx2x_8481_hw_reset(struct bnx2x_phy * phy,struct link_params * params)10349 static void bnx2x_8481_hw_reset(struct bnx2x_phy *phy,
10350 				struct link_params *params)
10351 {
10352 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
10353 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 0);
10354 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
10355 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 1);
10356 }
10357 
bnx2x_8481_link_reset(struct bnx2x_phy * phy,struct link_params * params)10358 static void bnx2x_8481_link_reset(struct bnx2x_phy *phy,
10359 					struct link_params *params)
10360 {
10361 	bnx2x_cl45_write(params->bp, phy,
10362 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
10363 	bnx2x_cl45_write(params->bp, phy,
10364 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1);
10365 }
10366 
bnx2x_848x3_link_reset(struct bnx2x_phy * phy,struct link_params * params)10367 static void bnx2x_848x3_link_reset(struct bnx2x_phy *phy,
10368 				   struct link_params *params)
10369 {
10370 	struct bnx2x *bp = params->bp;
10371 	u8 port;
10372 	u16 val16;
10373 
10374 	if (!(CHIP_IS_E1x(bp)))
10375 		port = BP_PATH(bp);
10376 	else
10377 		port = params->port;
10378 
10379 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
10380 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
10381 			       MISC_REGISTERS_GPIO_OUTPUT_LOW,
10382 			       port);
10383 	} else {
10384 		bnx2x_cl45_read(bp, phy,
10385 				MDIO_CTL_DEVAD,
10386 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val16);
10387 		val16 |= MDIO_84833_SUPER_ISOLATE;
10388 		bnx2x_cl45_write(bp, phy,
10389 				 MDIO_CTL_DEVAD,
10390 				 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val16);
10391 	}
10392 }
10393 
bnx2x_848xx_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10394 static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
10395 				     struct link_params *params, u8 mode)
10396 {
10397 	struct bnx2x *bp = params->bp;
10398 	u16 val;
10399 	u8 port;
10400 
10401 	if (!(CHIP_IS_E1x(bp)))
10402 		port = BP_PATH(bp);
10403 	else
10404 		port = params->port;
10405 
10406 	switch (mode) {
10407 	case LED_MODE_OFF:
10408 
10409 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OFF\n", port);
10410 
10411 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10412 		    SHARED_HW_CFG_LED_EXTPHY1) {
10413 
10414 			/* Set LED masks */
10415 			bnx2x_cl45_write(bp, phy,
10416 					MDIO_PMA_DEVAD,
10417 					MDIO_PMA_REG_8481_LED1_MASK,
10418 					0x0);
10419 
10420 			bnx2x_cl45_write(bp, phy,
10421 					MDIO_PMA_DEVAD,
10422 					MDIO_PMA_REG_8481_LED2_MASK,
10423 					0x0);
10424 
10425 			bnx2x_cl45_write(bp, phy,
10426 					MDIO_PMA_DEVAD,
10427 					MDIO_PMA_REG_8481_LED3_MASK,
10428 					0x0);
10429 
10430 			bnx2x_cl45_write(bp, phy,
10431 					MDIO_PMA_DEVAD,
10432 					MDIO_PMA_REG_8481_LED5_MASK,
10433 					0x0);
10434 
10435 		} else {
10436 			bnx2x_cl45_write(bp, phy,
10437 					 MDIO_PMA_DEVAD,
10438 					 MDIO_PMA_REG_8481_LED1_MASK,
10439 					 0x0);
10440 		}
10441 		break;
10442 	case LED_MODE_FRONT_PANEL_OFF:
10443 
10444 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE FRONT PANEL OFF\n",
10445 		   port);
10446 
10447 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10448 		    SHARED_HW_CFG_LED_EXTPHY1) {
10449 
10450 			/* Set LED masks */
10451 			bnx2x_cl45_write(bp, phy,
10452 					 MDIO_PMA_DEVAD,
10453 					 MDIO_PMA_REG_8481_LED1_MASK,
10454 					 0x0);
10455 
10456 			bnx2x_cl45_write(bp, phy,
10457 					 MDIO_PMA_DEVAD,
10458 					 MDIO_PMA_REG_8481_LED2_MASK,
10459 					 0x0);
10460 
10461 			bnx2x_cl45_write(bp, phy,
10462 					 MDIO_PMA_DEVAD,
10463 					 MDIO_PMA_REG_8481_LED3_MASK,
10464 					 0x0);
10465 
10466 			bnx2x_cl45_write(bp, phy,
10467 					 MDIO_PMA_DEVAD,
10468 					 MDIO_PMA_REG_8481_LED5_MASK,
10469 					 0x20);
10470 
10471 		} else {
10472 			bnx2x_cl45_write(bp, phy,
10473 					 MDIO_PMA_DEVAD,
10474 					 MDIO_PMA_REG_8481_LED1_MASK,
10475 					 0x0);
10476 			if (phy->type ==
10477 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10478 				/* Disable MI_INT interrupt before setting LED4
10479 				 * source to constant off.
10480 				 */
10481 				if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
10482 					   params->port*4) &
10483 				    NIG_MASK_MI_INT) {
10484 					params->link_flags |=
10485 					LINK_FLAGS_INT_DISABLED;
10486 
10487 					bnx2x_bits_dis(
10488 						bp,
10489 						NIG_REG_MASK_INTERRUPT_PORT0 +
10490 						params->port*4,
10491 						NIG_MASK_MI_INT);
10492 				}
10493 				bnx2x_cl45_write(bp, phy,
10494 						 MDIO_PMA_DEVAD,
10495 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10496 						 0x0);
10497 			}
10498 		}
10499 		break;
10500 	case LED_MODE_ON:
10501 
10502 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE ON\n", port);
10503 
10504 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10505 		    SHARED_HW_CFG_LED_EXTPHY1) {
10506 			/* Set control reg */
10507 			bnx2x_cl45_read(bp, phy,
10508 					MDIO_PMA_DEVAD,
10509 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10510 					&val);
10511 			val &= 0x8000;
10512 			val |= 0x2492;
10513 
10514 			bnx2x_cl45_write(bp, phy,
10515 					 MDIO_PMA_DEVAD,
10516 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10517 					 val);
10518 
10519 			/* Set LED masks */
10520 			bnx2x_cl45_write(bp, phy,
10521 					 MDIO_PMA_DEVAD,
10522 					 MDIO_PMA_REG_8481_LED1_MASK,
10523 					 0x0);
10524 
10525 			bnx2x_cl45_write(bp, phy,
10526 					 MDIO_PMA_DEVAD,
10527 					 MDIO_PMA_REG_8481_LED2_MASK,
10528 					 0x20);
10529 
10530 			bnx2x_cl45_write(bp, phy,
10531 					 MDIO_PMA_DEVAD,
10532 					 MDIO_PMA_REG_8481_LED3_MASK,
10533 					 0x20);
10534 
10535 			bnx2x_cl45_write(bp, phy,
10536 					 MDIO_PMA_DEVAD,
10537 					 MDIO_PMA_REG_8481_LED5_MASK,
10538 					 0x0);
10539 		} else {
10540 			bnx2x_cl45_write(bp, phy,
10541 					 MDIO_PMA_DEVAD,
10542 					 MDIO_PMA_REG_8481_LED1_MASK,
10543 					 0x20);
10544 			if (phy->type ==
10545 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10546 				/* Disable MI_INT interrupt before setting LED4
10547 				 * source to constant on.
10548 				 */
10549 				if (REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
10550 					   params->port*4) &
10551 				    NIG_MASK_MI_INT) {
10552 					params->link_flags |=
10553 					LINK_FLAGS_INT_DISABLED;
10554 
10555 					bnx2x_bits_dis(
10556 						bp,
10557 						NIG_REG_MASK_INTERRUPT_PORT0 +
10558 						params->port*4,
10559 						NIG_MASK_MI_INT);
10560 				}
10561 				bnx2x_cl45_write(bp, phy,
10562 						 MDIO_PMA_DEVAD,
10563 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10564 						 0x20);
10565 			}
10566 		}
10567 		break;
10568 
10569 	case LED_MODE_OPER:
10570 
10571 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OPER\n", port);
10572 
10573 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10574 		    SHARED_HW_CFG_LED_EXTPHY1) {
10575 
10576 			/* Set control reg */
10577 			bnx2x_cl45_read(bp, phy,
10578 					MDIO_PMA_DEVAD,
10579 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10580 					&val);
10581 
10582 			if (!((val &
10583 			       MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_MASK)
10584 			  >> MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_SHIFT)) {
10585 				DP(NETIF_MSG_LINK, "Setting LINK_SIGNAL\n");
10586 				bnx2x_cl45_write(bp, phy,
10587 						 MDIO_PMA_DEVAD,
10588 						 MDIO_PMA_REG_8481_LINK_SIGNAL,
10589 						 0xa492);
10590 			}
10591 
10592 			/* Set LED masks */
10593 			bnx2x_cl45_write(bp, phy,
10594 					 MDIO_PMA_DEVAD,
10595 					 MDIO_PMA_REG_8481_LED1_MASK,
10596 					 0x10);
10597 
10598 			bnx2x_cl45_write(bp, phy,
10599 					 MDIO_PMA_DEVAD,
10600 					 MDIO_PMA_REG_8481_LED2_MASK,
10601 					 0x80);
10602 
10603 			bnx2x_cl45_write(bp, phy,
10604 					 MDIO_PMA_DEVAD,
10605 					 MDIO_PMA_REG_8481_LED3_MASK,
10606 					 0x98);
10607 
10608 			bnx2x_cl45_write(bp, phy,
10609 					 MDIO_PMA_DEVAD,
10610 					 MDIO_PMA_REG_8481_LED5_MASK,
10611 					 0x40);
10612 
10613 		} else {
10614 			bnx2x_cl45_write(bp, phy,
10615 					 MDIO_PMA_DEVAD,
10616 					 MDIO_PMA_REG_8481_LED1_MASK,
10617 					 0x80);
10618 
10619 			/* Tell LED3 to blink on source */
10620 			bnx2x_cl45_read(bp, phy,
10621 					MDIO_PMA_DEVAD,
10622 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10623 					&val);
10624 			val &= ~(7<<6);
10625 			val |= (1<<6); /* A83B[8:6]= 1 */
10626 			bnx2x_cl45_write(bp, phy,
10627 					 MDIO_PMA_DEVAD,
10628 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10629 					 val);
10630 			if (phy->type ==
10631 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
10632 				/* Restore LED4 source to external link,
10633 				 * and re-enable interrupts.
10634 				 */
10635 				bnx2x_cl45_write(bp, phy,
10636 						 MDIO_PMA_DEVAD,
10637 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
10638 						 0x40);
10639 				if (params->link_flags &
10640 				    LINK_FLAGS_INT_DISABLED) {
10641 					bnx2x_link_int_enable(params);
10642 					params->link_flags &=
10643 						~LINK_FLAGS_INT_DISABLED;
10644 				}
10645 			}
10646 		}
10647 		break;
10648 	}
10649 
10650 	/* This is a workaround for E3+84833 until autoneg
10651 	 * restart is fixed in f/w
10652 	 */
10653 	if (CHIP_IS_E3(bp)) {
10654 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
10655 				MDIO_WC_REG_GP2_STATUS_GP_2_1, &val);
10656 	}
10657 }
10658 
10659 /******************************************************************/
10660 /*			54618SE PHY SECTION			  */
10661 /******************************************************************/
bnx2x_54618se_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)10662 static void bnx2x_54618se_specific_func(struct bnx2x_phy *phy,
10663 					struct link_params *params,
10664 					u32 action)
10665 {
10666 	struct bnx2x *bp = params->bp;
10667 	u16 temp;
10668 	switch (action) {
10669 	case PHY_INIT:
10670 		/* Configure LED4: set to INTR (0x6). */
10671 		/* Accessing shadow register 0xe. */
10672 		bnx2x_cl22_write(bp, phy,
10673 				 MDIO_REG_GPHY_SHADOW,
10674 				 MDIO_REG_GPHY_SHADOW_LED_SEL2);
10675 		bnx2x_cl22_read(bp, phy,
10676 				MDIO_REG_GPHY_SHADOW,
10677 				&temp);
10678 		temp &= ~(0xf << 4);
10679 		temp |= (0x6 << 4);
10680 		bnx2x_cl22_write(bp, phy,
10681 				 MDIO_REG_GPHY_SHADOW,
10682 				 MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10683 		/* Configure INTR based on link status change. */
10684 		bnx2x_cl22_write(bp, phy,
10685 				 MDIO_REG_INTR_MASK,
10686 				 ~MDIO_REG_INTR_MASK_LINK_STATUS);
10687 		break;
10688 	}
10689 }
10690 
bnx2x_54618se_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10691 static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
10692 					       struct link_params *params,
10693 					       struct link_vars *vars)
10694 {
10695 	struct bnx2x *bp = params->bp;
10696 	u8 port;
10697 	u16 autoneg_val, an_1000_val, an_10_100_val, fc_val, temp;
10698 	u32 cfg_pin;
10699 
10700 	DP(NETIF_MSG_LINK, "54618SE cfg init\n");
10701 	usleep_range(1000, 2000);
10702 
10703 	/* This works with E3 only, no need to check the chip
10704 	 * before determining the port.
10705 	 */
10706 	port = params->port;
10707 
10708 	cfg_pin = (REG_RD(bp, params->shmem_base +
10709 			offsetof(struct shmem_region,
10710 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
10711 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
10712 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
10713 
10714 	/* Drive pin high to bring the GPHY out of reset. */
10715 	bnx2x_set_cfg_pin(bp, cfg_pin, 1);
10716 
10717 	/* wait for GPHY to reset */
10718 	msleep(50);
10719 
10720 	/* reset phy */
10721 	bnx2x_cl22_write(bp, phy,
10722 			 MDIO_PMA_REG_CTRL, 0x8000);
10723 	bnx2x_wait_reset_complete(bp, phy, params);
10724 
10725 	/* Wait for GPHY to reset */
10726 	msleep(50);
10727 
10728 
10729 	bnx2x_54618se_specific_func(phy, params, PHY_INIT);
10730 	/* Flip the signal detect polarity (set 0x1c.0x1e[8]). */
10731 	bnx2x_cl22_write(bp, phy,
10732 			MDIO_REG_GPHY_SHADOW,
10733 			MDIO_REG_GPHY_SHADOW_AUTO_DET_MED);
10734 	bnx2x_cl22_read(bp, phy,
10735 			MDIO_REG_GPHY_SHADOW,
10736 			&temp);
10737 	temp |= MDIO_REG_GPHY_SHADOW_INVERT_FIB_SD;
10738 	bnx2x_cl22_write(bp, phy,
10739 			MDIO_REG_GPHY_SHADOW,
10740 			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10741 
10742 	/* Set up fc */
10743 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
10744 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
10745 	fc_val = 0;
10746 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
10747 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC)
10748 		fc_val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
10749 
10750 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
10751 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
10752 		fc_val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
10753 
10754 	/* Read all advertisement */
10755 	bnx2x_cl22_read(bp, phy,
10756 			0x09,
10757 			&an_1000_val);
10758 
10759 	bnx2x_cl22_read(bp, phy,
10760 			0x04,
10761 			&an_10_100_val);
10762 
10763 	bnx2x_cl22_read(bp, phy,
10764 			MDIO_PMA_REG_CTRL,
10765 			&autoneg_val);
10766 
10767 	/* Disable forced speed */
10768 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
10769 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8) | (1<<10) |
10770 			   (1<<11));
10771 
10772 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10773 			(phy->speed_cap_mask &
10774 			PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
10775 			(phy->req_line_speed == SPEED_1000)) {
10776 		an_1000_val |= (1<<8);
10777 		autoneg_val |= (1<<9 | 1<<12);
10778 		if (phy->req_duplex == DUPLEX_FULL)
10779 			an_1000_val |= (1<<9);
10780 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
10781 	} else
10782 		an_1000_val &= ~((1<<8) | (1<<9));
10783 
10784 	bnx2x_cl22_write(bp, phy,
10785 			0x09,
10786 			an_1000_val);
10787 	bnx2x_cl22_read(bp, phy,
10788 			0x09,
10789 			&an_1000_val);
10790 
10791 	/* Set 100 speed advertisement */
10792 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10793 			(phy->speed_cap_mask &
10794 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
10795 			PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF)))) {
10796 		an_10_100_val |= (1<<7);
10797 		/* Enable autoneg and restart autoneg for legacy speeds */
10798 		autoneg_val |= (1<<9 | 1<<12);
10799 
10800 		if (phy->req_duplex == DUPLEX_FULL)
10801 			an_10_100_val |= (1<<8);
10802 		DP(NETIF_MSG_LINK, "Advertising 100M\n");
10803 	}
10804 
10805 	/* Set 10 speed advertisement */
10806 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10807 			(phy->speed_cap_mask &
10808 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
10809 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)))) {
10810 		an_10_100_val |= (1<<5);
10811 		autoneg_val |= (1<<9 | 1<<12);
10812 		if (phy->req_duplex == DUPLEX_FULL)
10813 			an_10_100_val |= (1<<6);
10814 		DP(NETIF_MSG_LINK, "Advertising 10M\n");
10815 	}
10816 
10817 	/* Only 10/100 are allowed to work in FORCE mode */
10818 	if (phy->req_line_speed == SPEED_100) {
10819 		autoneg_val |= (1<<13);
10820 		/* Enabled AUTO-MDIX when autoneg is disabled */
10821 		bnx2x_cl22_write(bp, phy,
10822 				0x18,
10823 				(1<<15 | 1<<9 | 7<<0));
10824 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
10825 	}
10826 	if (phy->req_line_speed == SPEED_10) {
10827 		/* Enabled AUTO-MDIX when autoneg is disabled */
10828 		bnx2x_cl22_write(bp, phy,
10829 				0x18,
10830 				(1<<15 | 1<<9 | 7<<0));
10831 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
10832 	}
10833 
10834 	if ((phy->flags & FLAGS_EEE) && bnx2x_eee_has_cap(params)) {
10835 		int rc;
10836 
10837 		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS,
10838 				 MDIO_REG_GPHY_EXP_ACCESS_TOP |
10839 				 MDIO_REG_GPHY_EXP_TOP_2K_BUF);
10840 		bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, &temp);
10841 		temp &= 0xfffe;
10842 		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, temp);
10843 
10844 		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_1G_ADV);
10845 		if (rc) {
10846 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
10847 			bnx2x_eee_disable(phy, params, vars);
10848 		} else if ((params->eee_mode & EEE_MODE_ADV_LPI) &&
10849 			   (phy->req_duplex == DUPLEX_FULL) &&
10850 			   (bnx2x_eee_calc_timer(params) ||
10851 			    !(params->eee_mode & EEE_MODE_ENABLE_LPI))) {
10852 			/* Need to advertise EEE only when requested,
10853 			 * and either no LPI assertion was requested,
10854 			 * or it was requested and a valid timer was set.
10855 			 * Also notice full duplex is required for EEE.
10856 			 */
10857 			bnx2x_eee_advertise(phy, params, vars,
10858 					    SHMEM_EEE_1G_ADV);
10859 		} else {
10860 			DP(NETIF_MSG_LINK, "Don't Advertise 1GBase-T EEE\n");
10861 			bnx2x_eee_disable(phy, params, vars);
10862 		}
10863 	} else {
10864 		vars->eee_status &= ~SHMEM_EEE_1G_ADV <<
10865 				    SHMEM_EEE_SUPPORTED_SHIFT;
10866 
10867 		if (phy->flags & FLAGS_EEE) {
10868 			/* Handle legacy auto-grEEEn */
10869 			if (params->feature_config_flags &
10870 			    FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
10871 				temp = 6;
10872 				DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n");
10873 			} else {
10874 				temp = 0;
10875 				DP(NETIF_MSG_LINK, "Don't Adv. EEE\n");
10876 			}
10877 			bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
10878 					 MDIO_AN_REG_EEE_ADV, temp);
10879 		}
10880 	}
10881 
10882 	bnx2x_cl22_write(bp, phy,
10883 			0x04,
10884 			an_10_100_val | fc_val);
10885 
10886 	if (phy->req_duplex == DUPLEX_FULL)
10887 		autoneg_val |= (1<<8);
10888 
10889 	bnx2x_cl22_write(bp, phy,
10890 			MDIO_PMA_REG_CTRL, autoneg_val);
10891 
10892 	return 0;
10893 }
10894 
10895 
bnx2x_5461x_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10896 static void bnx2x_5461x_set_link_led(struct bnx2x_phy *phy,
10897 				       struct link_params *params, u8 mode)
10898 {
10899 	struct bnx2x *bp = params->bp;
10900 	u16 temp;
10901 
10902 	bnx2x_cl22_write(bp, phy,
10903 		MDIO_REG_GPHY_SHADOW,
10904 		MDIO_REG_GPHY_SHADOW_LED_SEL1);
10905 	bnx2x_cl22_read(bp, phy,
10906 		MDIO_REG_GPHY_SHADOW,
10907 		&temp);
10908 	temp &= 0xff00;
10909 
10910 	DP(NETIF_MSG_LINK, "54618x set link led (mode=%x)\n", mode);
10911 	switch (mode) {
10912 	case LED_MODE_FRONT_PANEL_OFF:
10913 	case LED_MODE_OFF:
10914 		temp |= 0x00ee;
10915 		break;
10916 	case LED_MODE_OPER:
10917 		temp |= 0x0001;
10918 		break;
10919 	case LED_MODE_ON:
10920 		temp |= 0x00ff;
10921 		break;
10922 	default:
10923 		break;
10924 	}
10925 	bnx2x_cl22_write(bp, phy,
10926 		MDIO_REG_GPHY_SHADOW,
10927 		MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10928 	return;
10929 }
10930 
10931 
bnx2x_54618se_link_reset(struct bnx2x_phy * phy,struct link_params * params)10932 static void bnx2x_54618se_link_reset(struct bnx2x_phy *phy,
10933 				     struct link_params *params)
10934 {
10935 	struct bnx2x *bp = params->bp;
10936 	u32 cfg_pin;
10937 	u8 port;
10938 
10939 	/* In case of no EPIO routed to reset the GPHY, put it
10940 	 * in low power mode.
10941 	 */
10942 	bnx2x_cl22_write(bp, phy, MDIO_PMA_REG_CTRL, 0x800);
10943 	/* This works with E3 only, no need to check the chip
10944 	 * before determining the port.
10945 	 */
10946 	port = params->port;
10947 	cfg_pin = (REG_RD(bp, params->shmem_base +
10948 			offsetof(struct shmem_region,
10949 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
10950 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
10951 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
10952 
10953 	/* Drive pin low to put GPHY in reset. */
10954 	bnx2x_set_cfg_pin(bp, cfg_pin, 0);
10955 }
10956 
bnx2x_54618se_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10957 static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy,
10958 				    struct link_params *params,
10959 				    struct link_vars *vars)
10960 {
10961 	struct bnx2x *bp = params->bp;
10962 	u16 val;
10963 	u8 link_up = 0;
10964 	u16 legacy_status, legacy_speed;
10965 
10966 	/* Get speed operation status */
10967 	bnx2x_cl22_read(bp, phy,
10968 			MDIO_REG_GPHY_AUX_STATUS,
10969 			&legacy_status);
10970 	DP(NETIF_MSG_LINK, "54618SE read_status: 0x%x\n", legacy_status);
10971 
10972 	/* Read status to clear the PHY interrupt. */
10973 	bnx2x_cl22_read(bp, phy,
10974 			MDIO_REG_INTR_STATUS,
10975 			&val);
10976 
10977 	link_up = ((legacy_status & (1<<2)) == (1<<2));
10978 
10979 	if (link_up) {
10980 		legacy_speed = (legacy_status & (7<<8));
10981 		if (legacy_speed == (7<<8)) {
10982 			vars->line_speed = SPEED_1000;
10983 			vars->duplex = DUPLEX_FULL;
10984 		} else if (legacy_speed == (6<<8)) {
10985 			vars->line_speed = SPEED_1000;
10986 			vars->duplex = DUPLEX_HALF;
10987 		} else if (legacy_speed == (5<<8)) {
10988 			vars->line_speed = SPEED_100;
10989 			vars->duplex = DUPLEX_FULL;
10990 		}
10991 		/* Omitting 100Base-T4 for now */
10992 		else if (legacy_speed == (3<<8)) {
10993 			vars->line_speed = SPEED_100;
10994 			vars->duplex = DUPLEX_HALF;
10995 		} else if (legacy_speed == (2<<8)) {
10996 			vars->line_speed = SPEED_10;
10997 			vars->duplex = DUPLEX_FULL;
10998 		} else if (legacy_speed == (1<<8)) {
10999 			vars->line_speed = SPEED_10;
11000 			vars->duplex = DUPLEX_HALF;
11001 		} else /* Should not happen */
11002 			vars->line_speed = 0;
11003 
11004 		DP(NETIF_MSG_LINK,
11005 		   "Link is up in %dMbps, is_duplex_full= %d\n",
11006 		   vars->line_speed,
11007 		   (vars->duplex == DUPLEX_FULL));
11008 
11009 		/* Check legacy speed AN resolution */
11010 		bnx2x_cl22_read(bp, phy,
11011 				0x01,
11012 				&val);
11013 		if (val & (1<<5))
11014 			vars->link_status |=
11015 				LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
11016 		bnx2x_cl22_read(bp, phy,
11017 				0x06,
11018 				&val);
11019 		if ((val & (1<<0)) == 0)
11020 			vars->link_status |=
11021 				LINK_STATUS_PARALLEL_DETECTION_USED;
11022 
11023 		DP(NETIF_MSG_LINK, "BCM54618SE: link speed is %d\n",
11024 			   vars->line_speed);
11025 
11026 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
11027 
11028 		if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
11029 			/* Report LP advertised speeds */
11030 			bnx2x_cl22_read(bp, phy, 0x5, &val);
11031 
11032 			if (val & (1<<5))
11033 				vars->link_status |=
11034 				  LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
11035 			if (val & (1<<6))
11036 				vars->link_status |=
11037 				  LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
11038 			if (val & (1<<7))
11039 				vars->link_status |=
11040 				  LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
11041 			if (val & (1<<8))
11042 				vars->link_status |=
11043 				  LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
11044 			if (val & (1<<9))
11045 				vars->link_status |=
11046 				  LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
11047 
11048 			bnx2x_cl22_read(bp, phy, 0xa, &val);
11049 			if (val & (1<<10))
11050 				vars->link_status |=
11051 				  LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
11052 			if (val & (1<<11))
11053 				vars->link_status |=
11054 				  LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
11055 
11056 			if ((phy->flags & FLAGS_EEE) &&
11057 			    bnx2x_eee_has_cap(params))
11058 				bnx2x_eee_an_resolve(phy, params, vars);
11059 		}
11060 	}
11061 	return link_up;
11062 }
11063 
bnx2x_54618se_config_loopback(struct bnx2x_phy * phy,struct link_params * params)11064 static void bnx2x_54618se_config_loopback(struct bnx2x_phy *phy,
11065 					  struct link_params *params)
11066 {
11067 	struct bnx2x *bp = params->bp;
11068 	u16 val;
11069 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
11070 
11071 	DP(NETIF_MSG_LINK, "2PMA/PMD ext_phy_loopback: 54618se\n");
11072 
11073 	/* Enable master/slave manual mmode and set to master */
11074 	/* mii write 9 [bits set 11 12] */
11075 	bnx2x_cl22_write(bp, phy, 0x09, 3<<11);
11076 
11077 	/* forced 1G and disable autoneg */
11078 	/* set val [mii read 0] */
11079 	/* set val [expr $val & [bits clear 6 12 13]] */
11080 	/* set val [expr $val | [bits set 6 8]] */
11081 	/* mii write 0 $val */
11082 	bnx2x_cl22_read(bp, phy, 0x00, &val);
11083 	val &= ~((1<<6) | (1<<12) | (1<<13));
11084 	val |= (1<<6) | (1<<8);
11085 	bnx2x_cl22_write(bp, phy, 0x00, val);
11086 
11087 	/* Set external loopback and Tx using 6dB coding */
11088 	/* mii write 0x18 7 */
11089 	/* set val [mii read 0x18] */
11090 	/* mii write 0x18 [expr $val | [bits set 10 15]] */
11091 	bnx2x_cl22_write(bp, phy, 0x18, 7);
11092 	bnx2x_cl22_read(bp, phy, 0x18, &val);
11093 	bnx2x_cl22_write(bp, phy, 0x18, val | (1<<10) | (1<<15));
11094 
11095 	/* This register opens the gate for the UMAC despite its name */
11096 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
11097 
11098 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
11099 	 * length used by the MAC receive logic to check frames.
11100 	 */
11101 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
11102 }
11103 
11104 /******************************************************************/
11105 /*			SFX7101 PHY SECTION			  */
11106 /******************************************************************/
bnx2x_7101_config_loopback(struct bnx2x_phy * phy,struct link_params * params)11107 static void bnx2x_7101_config_loopback(struct bnx2x_phy *phy,
11108 				       struct link_params *params)
11109 {
11110 	struct bnx2x *bp = params->bp;
11111 	/* SFX7101_XGXS_TEST1 */
11112 	bnx2x_cl45_write(bp, phy,
11113 			 MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
11114 }
11115 
bnx2x_7101_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11116 static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
11117 				  struct link_params *params,
11118 				  struct link_vars *vars)
11119 {
11120 	u16 fw_ver1, fw_ver2, val;
11121 	struct bnx2x *bp = params->bp;
11122 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LASI indication\n");
11123 
11124 	/* Restore normal power mode*/
11125 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
11126 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
11127 	/* HW reset */
11128 	bnx2x_ext_phy_hw_reset(bp, params->port);
11129 	bnx2x_wait_reset_complete(bp, phy, params);
11130 
11131 	bnx2x_cl45_write(bp, phy,
11132 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x1);
11133 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LED to blink on traffic\n");
11134 	bnx2x_cl45_write(bp, phy,
11135 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_7107_LED_CNTL, (1<<3));
11136 
11137 	bnx2x_ext_phy_set_pause(params, phy, vars);
11138 	/* Restart autoneg */
11139 	bnx2x_cl45_read(bp, phy,
11140 			MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, &val);
11141 	val |= 0x200;
11142 	bnx2x_cl45_write(bp, phy,
11143 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, val);
11144 
11145 	/* Save spirom version */
11146 	bnx2x_cl45_read(bp, phy,
11147 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER1, &fw_ver1);
11148 
11149 	bnx2x_cl45_read(bp, phy,
11150 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
11151 	bnx2x_save_spirom_version(bp, params->port,
11152 				  (u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
11153 	return 0;
11154 }
11155 
bnx2x_7101_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)11156 static u8 bnx2x_7101_read_status(struct bnx2x_phy *phy,
11157 				 struct link_params *params,
11158 				 struct link_vars *vars)
11159 {
11160 	struct bnx2x *bp = params->bp;
11161 	u8 link_up;
11162 	u16 val1, val2;
11163 	bnx2x_cl45_read(bp, phy,
11164 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
11165 	bnx2x_cl45_read(bp, phy,
11166 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
11167 	DP(NETIF_MSG_LINK, "10G-base-T LASI status 0x%x->0x%x\n",
11168 		   val2, val1);
11169 	bnx2x_cl45_read(bp, phy,
11170 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
11171 	bnx2x_cl45_read(bp, phy,
11172 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
11173 	DP(NETIF_MSG_LINK, "10G-base-T PMA status 0x%x->0x%x\n",
11174 		   val2, val1);
11175 	link_up = ((val1 & 4) == 4);
11176 	/* If link is up print the AN outcome of the SFX7101 PHY */
11177 	if (link_up) {
11178 		bnx2x_cl45_read(bp, phy,
11179 				MDIO_AN_DEVAD, MDIO_AN_REG_MASTER_STATUS,
11180 				&val2);
11181 		vars->line_speed = SPEED_10000;
11182 		vars->duplex = DUPLEX_FULL;
11183 		DP(NETIF_MSG_LINK, "SFX7101 AN status 0x%x->Master=%x\n",
11184 			   val2, (val2 & (1<<14)));
11185 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
11186 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
11187 
11188 		/* Read LP advertised speeds */
11189 		if (val2 & (1<<11))
11190 			vars->link_status |=
11191 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
11192 	}
11193 	return link_up;
11194 }
11195 
bnx2x_7101_format_ver(u32 spirom_ver,u8 * str,u16 * len)11196 static int bnx2x_7101_format_ver(u32 spirom_ver, u8 *str, u16 *len)
11197 {
11198 	if (*len < 5)
11199 		return -EINVAL;
11200 	str[0] = (spirom_ver & 0xFF);
11201 	str[1] = (spirom_ver & 0xFF00) >> 8;
11202 	str[2] = (spirom_ver & 0xFF0000) >> 16;
11203 	str[3] = (spirom_ver & 0xFF000000) >> 24;
11204 	str[4] = '\0';
11205 	*len -= 5;
11206 	return 0;
11207 }
11208 
bnx2x_sfx7101_sp_sw_reset(struct bnx2x * bp,struct bnx2x_phy * phy)11209 void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, struct bnx2x_phy *phy)
11210 {
11211 	u16 val, cnt;
11212 
11213 	bnx2x_cl45_read(bp, phy,
11214 			MDIO_PMA_DEVAD,
11215 			MDIO_PMA_REG_7101_RESET, &val);
11216 
11217 	for (cnt = 0; cnt < 10; cnt++) {
11218 		msleep(50);
11219 		/* Writes a self-clearing reset */
11220 		bnx2x_cl45_write(bp, phy,
11221 				 MDIO_PMA_DEVAD,
11222 				 MDIO_PMA_REG_7101_RESET,
11223 				 (val | (1<<15)));
11224 		/* Wait for clear */
11225 		bnx2x_cl45_read(bp, phy,
11226 				MDIO_PMA_DEVAD,
11227 				MDIO_PMA_REG_7101_RESET, &val);
11228 
11229 		if ((val & (1<<15)) == 0)
11230 			break;
11231 	}
11232 }
11233 
bnx2x_7101_hw_reset(struct bnx2x_phy * phy,struct link_params * params)11234 static void bnx2x_7101_hw_reset(struct bnx2x_phy *phy,
11235 				struct link_params *params) {
11236 	/* Low power mode is controlled by GPIO 2 */
11237 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_2,
11238 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
11239 	/* The PHY reset is controlled by GPIO 1 */
11240 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
11241 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
11242 }
11243 
bnx2x_7101_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)11244 static void bnx2x_7101_set_link_led(struct bnx2x_phy *phy,
11245 				    struct link_params *params, u8 mode)
11246 {
11247 	u16 val = 0;
11248 	struct bnx2x *bp = params->bp;
11249 	switch (mode) {
11250 	case LED_MODE_FRONT_PANEL_OFF:
11251 	case LED_MODE_OFF:
11252 		val = 2;
11253 		break;
11254 	case LED_MODE_ON:
11255 		val = 1;
11256 		break;
11257 	case LED_MODE_OPER:
11258 		val = 0;
11259 		break;
11260 	}
11261 	bnx2x_cl45_write(bp, phy,
11262 			 MDIO_PMA_DEVAD,
11263 			 MDIO_PMA_REG_7107_LINK_LED_CNTL,
11264 			 val);
11265 }
11266 
11267 /******************************************************************/
11268 /*			STATIC PHY DECLARATION			  */
11269 /******************************************************************/
11270 
11271 static const struct bnx2x_phy phy_null = {
11272 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN,
11273 	.addr		= 0,
11274 	.def_md_devad	= 0,
11275 	.flags		= FLAGS_INIT_XGXS_FIRST,
11276 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11277 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11278 	.mdio_ctrl	= 0,
11279 	.supported	= 0,
11280 	.media_type	= ETH_PHY_NOT_PRESENT,
11281 	.ver_addr	= 0,
11282 	.req_flow_ctrl	= 0,
11283 	.req_line_speed	= 0,
11284 	.speed_cap_mask	= 0,
11285 	.req_duplex	= 0,
11286 	.rsrv		= 0,
11287 	.config_init	= (config_init_t)NULL,
11288 	.read_status	= (read_status_t)NULL,
11289 	.link_reset	= (link_reset_t)NULL,
11290 	.config_loopback = (config_loopback_t)NULL,
11291 	.format_fw_ver	= (format_fw_ver_t)NULL,
11292 	.hw_reset	= (hw_reset_t)NULL,
11293 	.set_link_led	= (set_link_led_t)NULL,
11294 	.phy_specific_func = (phy_specific_func_t)NULL
11295 };
11296 
11297 static const struct bnx2x_phy phy_serdes = {
11298 	.type		= PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT,
11299 	.addr		= 0xff,
11300 	.def_md_devad	= 0,
11301 	.flags		= 0,
11302 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11303 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11304 	.mdio_ctrl	= 0,
11305 	.supported	= (SUPPORTED_10baseT_Half |
11306 			   SUPPORTED_10baseT_Full |
11307 			   SUPPORTED_100baseT_Half |
11308 			   SUPPORTED_100baseT_Full |
11309 			   SUPPORTED_1000baseT_Full |
11310 			   SUPPORTED_2500baseX_Full |
11311 			   SUPPORTED_TP |
11312 			   SUPPORTED_Autoneg |
11313 			   SUPPORTED_Pause |
11314 			   SUPPORTED_Asym_Pause),
11315 	.media_type	= ETH_PHY_BASE_T,
11316 	.ver_addr	= 0,
11317 	.req_flow_ctrl	= 0,
11318 	.req_line_speed	= 0,
11319 	.speed_cap_mask	= 0,
11320 	.req_duplex	= 0,
11321 	.rsrv		= 0,
11322 	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
11323 	.read_status	= (read_status_t)bnx2x_link_settings_status,
11324 	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
11325 	.config_loopback = (config_loopback_t)NULL,
11326 	.format_fw_ver	= (format_fw_ver_t)NULL,
11327 	.hw_reset	= (hw_reset_t)NULL,
11328 	.set_link_led	= (set_link_led_t)NULL,
11329 	.phy_specific_func = (phy_specific_func_t)NULL
11330 };
11331 
11332 static const struct bnx2x_phy phy_xgxs = {
11333 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
11334 	.addr		= 0xff,
11335 	.def_md_devad	= 0,
11336 	.flags		= 0,
11337 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11338 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11339 	.mdio_ctrl	= 0,
11340 	.supported	= (SUPPORTED_10baseT_Half |
11341 			   SUPPORTED_10baseT_Full |
11342 			   SUPPORTED_100baseT_Half |
11343 			   SUPPORTED_100baseT_Full |
11344 			   SUPPORTED_1000baseT_Full |
11345 			   SUPPORTED_2500baseX_Full |
11346 			   SUPPORTED_10000baseT_Full |
11347 			   SUPPORTED_FIBRE |
11348 			   SUPPORTED_Autoneg |
11349 			   SUPPORTED_Pause |
11350 			   SUPPORTED_Asym_Pause),
11351 	.media_type	= ETH_PHY_CX4,
11352 	.ver_addr	= 0,
11353 	.req_flow_ctrl	= 0,
11354 	.req_line_speed	= 0,
11355 	.speed_cap_mask	= 0,
11356 	.req_duplex	= 0,
11357 	.rsrv		= 0,
11358 	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
11359 	.read_status	= (read_status_t)bnx2x_link_settings_status,
11360 	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
11361 	.config_loopback = (config_loopback_t)bnx2x_set_xgxs_loopback,
11362 	.format_fw_ver	= (format_fw_ver_t)NULL,
11363 	.hw_reset	= (hw_reset_t)NULL,
11364 	.set_link_led	= (set_link_led_t)NULL,
11365 	.phy_specific_func = (phy_specific_func_t)bnx2x_xgxs_specific_func
11366 };
11367 static const struct bnx2x_phy phy_warpcore = {
11368 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
11369 	.addr		= 0xff,
11370 	.def_md_devad	= 0,
11371 	.flags		= FLAGS_TX_ERROR_CHECK,
11372 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11373 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11374 	.mdio_ctrl	= 0,
11375 	.supported	= (SUPPORTED_10baseT_Half |
11376 			   SUPPORTED_10baseT_Full |
11377 			   SUPPORTED_100baseT_Half |
11378 			   SUPPORTED_100baseT_Full |
11379 			   SUPPORTED_1000baseT_Full |
11380 			   SUPPORTED_10000baseT_Full |
11381 			   SUPPORTED_20000baseKR2_Full |
11382 			   SUPPORTED_20000baseMLD2_Full |
11383 			   SUPPORTED_FIBRE |
11384 			   SUPPORTED_Autoneg |
11385 			   SUPPORTED_Pause |
11386 			   SUPPORTED_Asym_Pause),
11387 	.media_type	= ETH_PHY_UNSPECIFIED,
11388 	.ver_addr	= 0,
11389 	.req_flow_ctrl	= 0,
11390 	.req_line_speed	= 0,
11391 	.speed_cap_mask	= 0,
11392 	/* req_duplex = */0,
11393 	/* rsrv = */0,
11394 	.config_init	= (config_init_t)bnx2x_warpcore_config_init,
11395 	.read_status	= (read_status_t)bnx2x_warpcore_read_status,
11396 	.link_reset	= (link_reset_t)bnx2x_warpcore_link_reset,
11397 	.config_loopback = (config_loopback_t)bnx2x_set_warpcore_loopback,
11398 	.format_fw_ver	= (format_fw_ver_t)NULL,
11399 	.hw_reset	= (hw_reset_t)bnx2x_warpcore_hw_reset,
11400 	.set_link_led	= (set_link_led_t)NULL,
11401 	.phy_specific_func = (phy_specific_func_t)NULL
11402 };
11403 
11404 
11405 static const struct bnx2x_phy phy_7101 = {
11406 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101,
11407 	.addr		= 0xff,
11408 	.def_md_devad	= 0,
11409 	.flags		= FLAGS_FAN_FAILURE_DET_REQ,
11410 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11411 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11412 	.mdio_ctrl	= 0,
11413 	.supported	= (SUPPORTED_10000baseT_Full |
11414 			   SUPPORTED_TP |
11415 			   SUPPORTED_Autoneg |
11416 			   SUPPORTED_Pause |
11417 			   SUPPORTED_Asym_Pause),
11418 	.media_type	= ETH_PHY_BASE_T,
11419 	.ver_addr	= 0,
11420 	.req_flow_ctrl	= 0,
11421 	.req_line_speed	= 0,
11422 	.speed_cap_mask	= 0,
11423 	.req_duplex	= 0,
11424 	.rsrv		= 0,
11425 	.config_init	= (config_init_t)bnx2x_7101_config_init,
11426 	.read_status	= (read_status_t)bnx2x_7101_read_status,
11427 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
11428 	.config_loopback = (config_loopback_t)bnx2x_7101_config_loopback,
11429 	.format_fw_ver	= (format_fw_ver_t)bnx2x_7101_format_ver,
11430 	.hw_reset	= (hw_reset_t)bnx2x_7101_hw_reset,
11431 	.set_link_led	= (set_link_led_t)bnx2x_7101_set_link_led,
11432 	.phy_specific_func = (phy_specific_func_t)NULL
11433 };
11434 static const struct bnx2x_phy phy_8073 = {
11435 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073,
11436 	.addr		= 0xff,
11437 	.def_md_devad	= 0,
11438 	.flags		= 0,
11439 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11440 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11441 	.mdio_ctrl	= 0,
11442 	.supported	= (SUPPORTED_10000baseT_Full |
11443 			   SUPPORTED_2500baseX_Full |
11444 			   SUPPORTED_1000baseT_Full |
11445 			   SUPPORTED_FIBRE |
11446 			   SUPPORTED_Autoneg |
11447 			   SUPPORTED_Pause |
11448 			   SUPPORTED_Asym_Pause),
11449 	.media_type	= ETH_PHY_KR,
11450 	.ver_addr	= 0,
11451 	.req_flow_ctrl	= 0,
11452 	.req_line_speed	= 0,
11453 	.speed_cap_mask	= 0,
11454 	.req_duplex	= 0,
11455 	.rsrv		= 0,
11456 	.config_init	= (config_init_t)bnx2x_8073_config_init,
11457 	.read_status	= (read_status_t)bnx2x_8073_read_status,
11458 	.link_reset	= (link_reset_t)bnx2x_8073_link_reset,
11459 	.config_loopback = (config_loopback_t)NULL,
11460 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11461 	.hw_reset	= (hw_reset_t)NULL,
11462 	.set_link_led	= (set_link_led_t)NULL,
11463 	.phy_specific_func = (phy_specific_func_t)bnx2x_8073_specific_func
11464 };
11465 static const struct bnx2x_phy phy_8705 = {
11466 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
11467 	.addr		= 0xff,
11468 	.def_md_devad	= 0,
11469 	.flags		= FLAGS_INIT_XGXS_FIRST,
11470 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11471 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11472 	.mdio_ctrl	= 0,
11473 	.supported	= (SUPPORTED_10000baseT_Full |
11474 			   SUPPORTED_FIBRE |
11475 			   SUPPORTED_Pause |
11476 			   SUPPORTED_Asym_Pause),
11477 	.media_type	= ETH_PHY_XFP_FIBER,
11478 	.ver_addr	= 0,
11479 	.req_flow_ctrl	= 0,
11480 	.req_line_speed	= 0,
11481 	.speed_cap_mask	= 0,
11482 	.req_duplex	= 0,
11483 	.rsrv		= 0,
11484 	.config_init	= (config_init_t)bnx2x_8705_config_init,
11485 	.read_status	= (read_status_t)bnx2x_8705_read_status,
11486 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
11487 	.config_loopback = (config_loopback_t)NULL,
11488 	.format_fw_ver	= (format_fw_ver_t)bnx2x_null_format_ver,
11489 	.hw_reset	= (hw_reset_t)NULL,
11490 	.set_link_led	= (set_link_led_t)NULL,
11491 	.phy_specific_func = (phy_specific_func_t)NULL
11492 };
11493 static const struct bnx2x_phy phy_8706 = {
11494 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706,
11495 	.addr		= 0xff,
11496 	.def_md_devad	= 0,
11497 	.flags		= FLAGS_INIT_XGXS_FIRST,
11498 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11499 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11500 	.mdio_ctrl	= 0,
11501 	.supported	= (SUPPORTED_10000baseT_Full |
11502 			   SUPPORTED_1000baseT_Full |
11503 			   SUPPORTED_FIBRE |
11504 			   SUPPORTED_Pause |
11505 			   SUPPORTED_Asym_Pause),
11506 	.media_type	= ETH_PHY_SFPP_10G_FIBER,
11507 	.ver_addr	= 0,
11508 	.req_flow_ctrl	= 0,
11509 	.req_line_speed	= 0,
11510 	.speed_cap_mask	= 0,
11511 	.req_duplex	= 0,
11512 	.rsrv		= 0,
11513 	.config_init	= (config_init_t)bnx2x_8706_config_init,
11514 	.read_status	= (read_status_t)bnx2x_8706_read_status,
11515 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
11516 	.config_loopback = (config_loopback_t)NULL,
11517 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11518 	.hw_reset	= (hw_reset_t)NULL,
11519 	.set_link_led	= (set_link_led_t)NULL,
11520 	.phy_specific_func = (phy_specific_func_t)NULL
11521 };
11522 
11523 static const struct bnx2x_phy phy_8726 = {
11524 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726,
11525 	.addr		= 0xff,
11526 	.def_md_devad	= 0,
11527 	.flags		= (FLAGS_INIT_XGXS_FIRST |
11528 			   FLAGS_TX_ERROR_CHECK),
11529 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11530 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11531 	.mdio_ctrl	= 0,
11532 	.supported	= (SUPPORTED_10000baseT_Full |
11533 			   SUPPORTED_1000baseT_Full |
11534 			   SUPPORTED_Autoneg |
11535 			   SUPPORTED_FIBRE |
11536 			   SUPPORTED_Pause |
11537 			   SUPPORTED_Asym_Pause),
11538 	.media_type	= ETH_PHY_NOT_PRESENT,
11539 	.ver_addr	= 0,
11540 	.req_flow_ctrl	= 0,
11541 	.req_line_speed	= 0,
11542 	.speed_cap_mask	= 0,
11543 	.req_duplex	= 0,
11544 	.rsrv		= 0,
11545 	.config_init	= (config_init_t)bnx2x_8726_config_init,
11546 	.read_status	= (read_status_t)bnx2x_8726_read_status,
11547 	.link_reset	= (link_reset_t)bnx2x_8726_link_reset,
11548 	.config_loopback = (config_loopback_t)bnx2x_8726_config_loopback,
11549 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11550 	.hw_reset	= (hw_reset_t)NULL,
11551 	.set_link_led	= (set_link_led_t)NULL,
11552 	.phy_specific_func = (phy_specific_func_t)NULL
11553 };
11554 
11555 static const struct bnx2x_phy phy_8727 = {
11556 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727,
11557 	.addr		= 0xff,
11558 	.def_md_devad	= 0,
11559 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
11560 			   FLAGS_TX_ERROR_CHECK),
11561 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11562 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11563 	.mdio_ctrl	= 0,
11564 	.supported	= (SUPPORTED_10000baseT_Full |
11565 			   SUPPORTED_1000baseT_Full |
11566 			   SUPPORTED_FIBRE |
11567 			   SUPPORTED_Pause |
11568 			   SUPPORTED_Asym_Pause),
11569 	.media_type	= ETH_PHY_NOT_PRESENT,
11570 	.ver_addr	= 0,
11571 	.req_flow_ctrl	= 0,
11572 	.req_line_speed	= 0,
11573 	.speed_cap_mask	= 0,
11574 	.req_duplex	= 0,
11575 	.rsrv		= 0,
11576 	.config_init	= (config_init_t)bnx2x_8727_config_init,
11577 	.read_status	= (read_status_t)bnx2x_8727_read_status,
11578 	.link_reset	= (link_reset_t)bnx2x_8727_link_reset,
11579 	.config_loopback = (config_loopback_t)NULL,
11580 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11581 	.hw_reset	= (hw_reset_t)bnx2x_8727_hw_reset,
11582 	.set_link_led	= (set_link_led_t)bnx2x_8727_set_link_led,
11583 	.phy_specific_func = (phy_specific_func_t)bnx2x_8727_specific_func
11584 };
11585 static const struct bnx2x_phy phy_8481 = {
11586 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
11587 	.addr		= 0xff,
11588 	.def_md_devad	= 0,
11589 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11590 			  FLAGS_REARM_LATCH_SIGNAL,
11591 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11592 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11593 	.mdio_ctrl	= 0,
11594 	.supported	= (SUPPORTED_10baseT_Half |
11595 			   SUPPORTED_10baseT_Full |
11596 			   SUPPORTED_100baseT_Half |
11597 			   SUPPORTED_100baseT_Full |
11598 			   SUPPORTED_1000baseT_Full |
11599 			   SUPPORTED_10000baseT_Full |
11600 			   SUPPORTED_TP |
11601 			   SUPPORTED_Autoneg |
11602 			   SUPPORTED_Pause |
11603 			   SUPPORTED_Asym_Pause),
11604 	.media_type	= ETH_PHY_BASE_T,
11605 	.ver_addr	= 0,
11606 	.req_flow_ctrl	= 0,
11607 	.req_line_speed	= 0,
11608 	.speed_cap_mask	= 0,
11609 	.req_duplex	= 0,
11610 	.rsrv		= 0,
11611 	.config_init	= (config_init_t)bnx2x_8481_config_init,
11612 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11613 	.link_reset	= (link_reset_t)bnx2x_8481_link_reset,
11614 	.config_loopback = (config_loopback_t)NULL,
11615 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11616 	.hw_reset	= (hw_reset_t)bnx2x_8481_hw_reset,
11617 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11618 	.phy_specific_func = (phy_specific_func_t)NULL
11619 };
11620 
11621 static const struct bnx2x_phy phy_84823 = {
11622 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823,
11623 	.addr		= 0xff,
11624 	.def_md_devad	= 0,
11625 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
11626 			   FLAGS_REARM_LATCH_SIGNAL |
11627 			   FLAGS_TX_ERROR_CHECK),
11628 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11629 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11630 	.mdio_ctrl	= 0,
11631 	.supported	= (SUPPORTED_10baseT_Half |
11632 			   SUPPORTED_10baseT_Full |
11633 			   SUPPORTED_100baseT_Half |
11634 			   SUPPORTED_100baseT_Full |
11635 			   SUPPORTED_1000baseT_Full |
11636 			   SUPPORTED_10000baseT_Full |
11637 			   SUPPORTED_TP |
11638 			   SUPPORTED_Autoneg |
11639 			   SUPPORTED_Pause |
11640 			   SUPPORTED_Asym_Pause),
11641 	.media_type	= ETH_PHY_BASE_T,
11642 	.ver_addr	= 0,
11643 	.req_flow_ctrl	= 0,
11644 	.req_line_speed	= 0,
11645 	.speed_cap_mask	= 0,
11646 	.req_duplex	= 0,
11647 	.rsrv		= 0,
11648 	.config_init	= (config_init_t)bnx2x_848x3_config_init,
11649 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11650 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
11651 	.config_loopback = (config_loopback_t)NULL,
11652 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11653 	.hw_reset	= (hw_reset_t)NULL,
11654 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11655 	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
11656 };
11657 
11658 static const struct bnx2x_phy phy_84833 = {
11659 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833,
11660 	.addr		= 0xff,
11661 	.def_md_devad	= 0,
11662 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
11663 			   FLAGS_REARM_LATCH_SIGNAL |
11664 			   FLAGS_TX_ERROR_CHECK),
11665 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11666 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11667 	.mdio_ctrl	= 0,
11668 	.supported	= (SUPPORTED_100baseT_Half |
11669 			   SUPPORTED_100baseT_Full |
11670 			   SUPPORTED_1000baseT_Full |
11671 			   SUPPORTED_10000baseT_Full |
11672 			   SUPPORTED_TP |
11673 			   SUPPORTED_Autoneg |
11674 			   SUPPORTED_Pause |
11675 			   SUPPORTED_Asym_Pause),
11676 	.media_type	= ETH_PHY_BASE_T,
11677 	.ver_addr	= 0,
11678 	.req_flow_ctrl	= 0,
11679 	.req_line_speed	= 0,
11680 	.speed_cap_mask	= 0,
11681 	.req_duplex	= 0,
11682 	.rsrv		= 0,
11683 	.config_init	= (config_init_t)bnx2x_848x3_config_init,
11684 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11685 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
11686 	.config_loopback = (config_loopback_t)NULL,
11687 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11688 	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
11689 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11690 	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
11691 };
11692 
11693 static const struct bnx2x_phy phy_84834 = {
11694 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834,
11695 	.addr		= 0xff,
11696 	.def_md_devad	= 0,
11697 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11698 			    FLAGS_REARM_LATCH_SIGNAL,
11699 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11700 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11701 	.mdio_ctrl	= 0,
11702 	.supported	= (SUPPORTED_100baseT_Half |
11703 			   SUPPORTED_100baseT_Full |
11704 			   SUPPORTED_1000baseT_Full |
11705 			   SUPPORTED_10000baseT_Full |
11706 			   SUPPORTED_TP |
11707 			   SUPPORTED_Autoneg |
11708 			   SUPPORTED_Pause |
11709 			   SUPPORTED_Asym_Pause),
11710 	.media_type	= ETH_PHY_BASE_T,
11711 	.ver_addr	= 0,
11712 	.req_flow_ctrl	= 0,
11713 	.req_line_speed	= 0,
11714 	.speed_cap_mask	= 0,
11715 	.req_duplex	= 0,
11716 	.rsrv		= 0,
11717 	.config_init	= (config_init_t)bnx2x_848x3_config_init,
11718 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11719 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
11720 	.config_loopback = (config_loopback_t)NULL,
11721 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11722 	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
11723 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11724 	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
11725 };
11726 
11727 static const struct bnx2x_phy phy_54618se = {
11728 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE,
11729 	.addr		= 0xff,
11730 	.def_md_devad	= 0,
11731 	.flags		= FLAGS_INIT_XGXS_FIRST,
11732 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11733 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11734 	.mdio_ctrl	= 0,
11735 	.supported	= (SUPPORTED_10baseT_Half |
11736 			   SUPPORTED_10baseT_Full |
11737 			   SUPPORTED_100baseT_Half |
11738 			   SUPPORTED_100baseT_Full |
11739 			   SUPPORTED_1000baseT_Full |
11740 			   SUPPORTED_TP |
11741 			   SUPPORTED_Autoneg |
11742 			   SUPPORTED_Pause |
11743 			   SUPPORTED_Asym_Pause),
11744 	.media_type	= ETH_PHY_BASE_T,
11745 	.ver_addr	= 0,
11746 	.req_flow_ctrl	= 0,
11747 	.req_line_speed	= 0,
11748 	.speed_cap_mask	= 0,
11749 	/* req_duplex = */0,
11750 	/* rsrv = */0,
11751 	.config_init	= (config_init_t)bnx2x_54618se_config_init,
11752 	.read_status	= (read_status_t)bnx2x_54618se_read_status,
11753 	.link_reset	= (link_reset_t)bnx2x_54618se_link_reset,
11754 	.config_loopback = (config_loopback_t)bnx2x_54618se_config_loopback,
11755 	.format_fw_ver	= (format_fw_ver_t)NULL,
11756 	.hw_reset	= (hw_reset_t)NULL,
11757 	.set_link_led	= (set_link_led_t)bnx2x_5461x_set_link_led,
11758 	.phy_specific_func = (phy_specific_func_t)bnx2x_54618se_specific_func
11759 };
11760 /*****************************************************************/
11761 /*                                                               */
11762 /* Populate the phy according. Main function: bnx2x_populate_phy   */
11763 /*                                                               */
11764 /*****************************************************************/
11765 
bnx2x_populate_preemphasis(struct bnx2x * bp,u32 shmem_base,struct bnx2x_phy * phy,u8 port,u8 phy_index)11766 static void bnx2x_populate_preemphasis(struct bnx2x *bp, u32 shmem_base,
11767 				     struct bnx2x_phy *phy, u8 port,
11768 				     u8 phy_index)
11769 {
11770 	/* Get the 4 lanes xgxs config rx and tx */
11771 	u32 rx = 0, tx = 0, i;
11772 	for (i = 0; i < 2; i++) {
11773 		/* INT_PHY and EXT_PHY1 share the same value location in
11774 		 * the shmem. When num_phys is greater than 1, than this value
11775 		 * applies only to EXT_PHY1
11776 		 */
11777 		if (phy_index == INT_PHY || phy_index == EXT_PHY1) {
11778 			rx = REG_RD(bp, shmem_base +
11779 				    offsetof(struct shmem_region,
11780 			  dev_info.port_hw_config[port].xgxs_config_rx[i<<1]));
11781 
11782 			tx = REG_RD(bp, shmem_base +
11783 				    offsetof(struct shmem_region,
11784 			  dev_info.port_hw_config[port].xgxs_config_tx[i<<1]));
11785 		} else {
11786 			rx = REG_RD(bp, shmem_base +
11787 				    offsetof(struct shmem_region,
11788 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
11789 
11790 			tx = REG_RD(bp, shmem_base +
11791 				    offsetof(struct shmem_region,
11792 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
11793 		}
11794 
11795 		phy->rx_preemphasis[i << 1] = ((rx>>16) & 0xffff);
11796 		phy->rx_preemphasis[(i << 1) + 1] = (rx & 0xffff);
11797 
11798 		phy->tx_preemphasis[i << 1] = ((tx>>16) & 0xffff);
11799 		phy->tx_preemphasis[(i << 1) + 1] = (tx & 0xffff);
11800 	}
11801 }
11802 
bnx2x_get_ext_phy_config(struct bnx2x * bp,u32 shmem_base,u8 phy_index,u8 port)11803 static u32 bnx2x_get_ext_phy_config(struct bnx2x *bp, u32 shmem_base,
11804 				    u8 phy_index, u8 port)
11805 {
11806 	u32 ext_phy_config = 0;
11807 	switch (phy_index) {
11808 	case EXT_PHY1:
11809 		ext_phy_config = REG_RD(bp, shmem_base +
11810 					      offsetof(struct shmem_region,
11811 			dev_info.port_hw_config[port].external_phy_config));
11812 		break;
11813 	case EXT_PHY2:
11814 		ext_phy_config = REG_RD(bp, shmem_base +
11815 					      offsetof(struct shmem_region,
11816 			dev_info.port_hw_config[port].external_phy_config2));
11817 		break;
11818 	default:
11819 		DP(NETIF_MSG_LINK, "Invalid phy_index %d\n", phy_index);
11820 		return -EINVAL;
11821 	}
11822 
11823 	return ext_phy_config;
11824 }
bnx2x_populate_int_phy(struct bnx2x * bp,u32 shmem_base,u8 port,struct bnx2x_phy * phy)11825 static int bnx2x_populate_int_phy(struct bnx2x *bp, u32 shmem_base, u8 port,
11826 				  struct bnx2x_phy *phy)
11827 {
11828 	u32 phy_addr;
11829 	u32 chip_id;
11830 	u32 switch_cfg = (REG_RD(bp, shmem_base +
11831 				       offsetof(struct shmem_region,
11832 			dev_info.port_feature_config[port].link_config)) &
11833 			  PORT_FEATURE_CONNECTED_SWITCH_MASK);
11834 	chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
11835 		((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
11836 
11837 	DP(NETIF_MSG_LINK, ":chip_id = 0x%x\n", chip_id);
11838 	if (USES_WARPCORE(bp)) {
11839 		u32 serdes_net_if;
11840 		phy_addr = REG_RD(bp,
11841 				  MISC_REG_WC0_CTRL_PHY_ADDR);
11842 		*phy = phy_warpcore;
11843 		if (REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR) == 0x3)
11844 			phy->flags |= FLAGS_4_PORT_MODE;
11845 		else
11846 			phy->flags &= ~FLAGS_4_PORT_MODE;
11847 			/* Check Dual mode */
11848 		serdes_net_if = (REG_RD(bp, shmem_base +
11849 					offsetof(struct shmem_region, dev_info.
11850 					port_hw_config[port].default_cfg)) &
11851 				 PORT_HW_CFG_NET_SERDES_IF_MASK);
11852 		/* Set the appropriate supported and flags indications per
11853 		 * interface type of the chip
11854 		 */
11855 		switch (serdes_net_if) {
11856 		case PORT_HW_CFG_NET_SERDES_IF_SGMII:
11857 			phy->supported &= (SUPPORTED_10baseT_Half |
11858 					   SUPPORTED_10baseT_Full |
11859 					   SUPPORTED_100baseT_Half |
11860 					   SUPPORTED_100baseT_Full |
11861 					   SUPPORTED_1000baseT_Full |
11862 					   SUPPORTED_FIBRE |
11863 					   SUPPORTED_Autoneg |
11864 					   SUPPORTED_Pause |
11865 					   SUPPORTED_Asym_Pause);
11866 			phy->media_type = ETH_PHY_BASE_T;
11867 			break;
11868 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
11869 			phy->supported &= (SUPPORTED_1000baseT_Full |
11870 					   SUPPORTED_10000baseT_Full |
11871 					   SUPPORTED_FIBRE |
11872 					   SUPPORTED_Pause |
11873 					   SUPPORTED_Asym_Pause);
11874 			phy->media_type = ETH_PHY_XFP_FIBER;
11875 			break;
11876 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
11877 			phy->supported &= (SUPPORTED_1000baseT_Full |
11878 					   SUPPORTED_10000baseT_Full |
11879 					   SUPPORTED_FIBRE |
11880 					   SUPPORTED_Pause |
11881 					   SUPPORTED_Asym_Pause);
11882 			phy->media_type = ETH_PHY_SFPP_10G_FIBER;
11883 			break;
11884 		case PORT_HW_CFG_NET_SERDES_IF_KR:
11885 			phy->media_type = ETH_PHY_KR;
11886 			phy->supported &= (SUPPORTED_1000baseT_Full |
11887 					   SUPPORTED_10000baseT_Full |
11888 					   SUPPORTED_FIBRE |
11889 					   SUPPORTED_Autoneg |
11890 					   SUPPORTED_Pause |
11891 					   SUPPORTED_Asym_Pause);
11892 			break;
11893 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
11894 			phy->media_type = ETH_PHY_KR;
11895 			phy->flags |= FLAGS_WC_DUAL_MODE;
11896 			phy->supported &= (SUPPORTED_20000baseMLD2_Full |
11897 					   SUPPORTED_FIBRE |
11898 					   SUPPORTED_Pause |
11899 					   SUPPORTED_Asym_Pause);
11900 			break;
11901 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
11902 			phy->media_type = ETH_PHY_KR;
11903 			phy->flags |= FLAGS_WC_DUAL_MODE;
11904 			phy->supported &= (SUPPORTED_20000baseKR2_Full |
11905 					   SUPPORTED_10000baseT_Full |
11906 					   SUPPORTED_1000baseT_Full |
11907 					   SUPPORTED_Autoneg |
11908 					   SUPPORTED_FIBRE |
11909 					   SUPPORTED_Pause |
11910 					   SUPPORTED_Asym_Pause);
11911 			phy->flags &= ~FLAGS_TX_ERROR_CHECK;
11912 			break;
11913 		default:
11914 			DP(NETIF_MSG_LINK, "Unknown WC interface type 0x%x\n",
11915 				       serdes_net_if);
11916 			break;
11917 		}
11918 
11919 		/* Enable MDC/MDIO work-around for E3 A0 since free running MDC
11920 		 * was not set as expected. For B0, ECO will be enabled so there
11921 		 * won't be an issue there
11922 		 */
11923 		if (CHIP_REV(bp) == CHIP_REV_Ax)
11924 			phy->flags |= FLAGS_MDC_MDIO_WA;
11925 		else
11926 			phy->flags |= FLAGS_MDC_MDIO_WA_B0;
11927 	} else {
11928 		switch (switch_cfg) {
11929 		case SWITCH_CFG_1G:
11930 			phy_addr = REG_RD(bp,
11931 					  NIG_REG_SERDES0_CTRL_PHY_ADDR +
11932 					  port * 0x10);
11933 			*phy = phy_serdes;
11934 			break;
11935 		case SWITCH_CFG_10G:
11936 			phy_addr = REG_RD(bp,
11937 					  NIG_REG_XGXS0_CTRL_PHY_ADDR +
11938 					  port * 0x18);
11939 			*phy = phy_xgxs;
11940 			break;
11941 		default:
11942 			DP(NETIF_MSG_LINK, "Invalid switch_cfg\n");
11943 			return -EINVAL;
11944 		}
11945 	}
11946 	phy->addr = (u8)phy_addr;
11947 	phy->mdio_ctrl = bnx2x_get_emac_base(bp,
11948 					    SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH,
11949 					    port);
11950 	if (CHIP_IS_E2(bp))
11951 		phy->def_md_devad = E2_DEFAULT_PHY_DEV_ADDR;
11952 	else
11953 		phy->def_md_devad = DEFAULT_PHY_DEV_ADDR;
11954 
11955 	DP(NETIF_MSG_LINK, "Internal phy port=%d, addr=0x%x, mdio_ctl=0x%x\n",
11956 		   port, phy->addr, phy->mdio_ctrl);
11957 
11958 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, INT_PHY);
11959 	return 0;
11960 }
11961 
bnx2x_populate_ext_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)11962 static int bnx2x_populate_ext_phy(struct bnx2x *bp,
11963 				  u8 phy_index,
11964 				  u32 shmem_base,
11965 				  u32 shmem2_base,
11966 				  u8 port,
11967 				  struct bnx2x_phy *phy)
11968 {
11969 	u32 ext_phy_config, phy_type, config2;
11970 	u32 mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH;
11971 	ext_phy_config = bnx2x_get_ext_phy_config(bp, shmem_base,
11972 						  phy_index, port);
11973 	phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
11974 	/* Select the phy type */
11975 	switch (phy_type) {
11976 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
11977 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED;
11978 		*phy = phy_8073;
11979 		break;
11980 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
11981 		*phy = phy_8705;
11982 		break;
11983 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
11984 		*phy = phy_8706;
11985 		break;
11986 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
11987 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11988 		*phy = phy_8726;
11989 		break;
11990 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
11991 		/* BCM8727_NOC => BCM8727 no over current */
11992 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11993 		*phy = phy_8727;
11994 		phy->flags |= FLAGS_NOC;
11995 		break;
11996 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
11997 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
11998 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11999 		*phy = phy_8727;
12000 		break;
12001 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
12002 		*phy = phy_8481;
12003 		break;
12004 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823:
12005 		*phy = phy_84823;
12006 		break;
12007 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
12008 		*phy = phy_84833;
12009 		break;
12010 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
12011 		*phy = phy_84834;
12012 		break;
12013 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616:
12014 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
12015 		*phy = phy_54618se;
12016 		if (phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
12017 			phy->flags |= FLAGS_EEE;
12018 		break;
12019 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
12020 		*phy = phy_7101;
12021 		break;
12022 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
12023 		*phy = phy_null;
12024 		return -EINVAL;
12025 	default:
12026 		*phy = phy_null;
12027 		/* In case external PHY wasn't found */
12028 		if ((phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
12029 		    (phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
12030 			return -EINVAL;
12031 		return 0;
12032 	}
12033 
12034 	phy->addr = XGXS_EXT_PHY_ADDR(ext_phy_config);
12035 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, phy_index);
12036 
12037 	/* The shmem address of the phy version is located on different
12038 	 * structures. In case this structure is too old, do not set
12039 	 * the address
12040 	 */
12041 	config2 = REG_RD(bp, shmem_base + offsetof(struct shmem_region,
12042 					dev_info.shared_hw_config.config2));
12043 	if (phy_index == EXT_PHY1) {
12044 		phy->ver_addr = shmem_base + offsetof(struct shmem_region,
12045 				port_mb[port].ext_phy_fw_version);
12046 
12047 		/* Check specific mdc mdio settings */
12048 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK)
12049 			mdc_mdio_access = config2 &
12050 			SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK;
12051 	} else {
12052 		u32 size = REG_RD(bp, shmem2_base);
12053 
12054 		if (size >
12055 		    offsetof(struct shmem2_region, ext_phy_fw_version2)) {
12056 			phy->ver_addr = shmem2_base +
12057 			    offsetof(struct shmem2_region,
12058 				     ext_phy_fw_version2[port]);
12059 		}
12060 		/* Check specific mdc mdio settings */
12061 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK)
12062 			mdc_mdio_access = (config2 &
12063 			SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK) >>
12064 			(SHARED_HW_CFG_MDC_MDIO_ACCESS2_SHIFT -
12065 			 SHARED_HW_CFG_MDC_MDIO_ACCESS1_SHIFT);
12066 	}
12067 	phy->mdio_ctrl = bnx2x_get_emac_base(bp, mdc_mdio_access, port);
12068 
12069 	if (((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
12070 	     (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) &&
12071 	    (phy->ver_addr)) {
12072 		/* Remove 100Mb link supported for BCM84833/4 when phy fw
12073 		 * version lower than or equal to 1.39
12074 		 */
12075 		u32 raw_ver = REG_RD(bp, phy->ver_addr);
12076 		if (((raw_ver & 0x7F) <= 39) &&
12077 		    (((raw_ver & 0xF80) >> 7) <= 1))
12078 			phy->supported &= ~(SUPPORTED_100baseT_Half |
12079 					    SUPPORTED_100baseT_Full);
12080 	}
12081 
12082 	DP(NETIF_MSG_LINK, "phy_type 0x%x port %d found in index %d\n",
12083 		   phy_type, port, phy_index);
12084 	DP(NETIF_MSG_LINK, "             addr=0x%x, mdio_ctl=0x%x\n",
12085 		   phy->addr, phy->mdio_ctrl);
12086 	return 0;
12087 }
12088 
bnx2x_populate_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)12089 static int bnx2x_populate_phy(struct bnx2x *bp, u8 phy_index, u32 shmem_base,
12090 			      u32 shmem2_base, u8 port, struct bnx2x_phy *phy)
12091 {
12092 	int status = 0;
12093 	phy->type = PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN;
12094 	if (phy_index == INT_PHY)
12095 		return bnx2x_populate_int_phy(bp, shmem_base, port, phy);
12096 	status = bnx2x_populate_ext_phy(bp, phy_index, shmem_base, shmem2_base,
12097 					port, phy);
12098 	return status;
12099 }
12100 
bnx2x_phy_def_cfg(struct link_params * params,struct bnx2x_phy * phy,u8 phy_index)12101 static void bnx2x_phy_def_cfg(struct link_params *params,
12102 			      struct bnx2x_phy *phy,
12103 			      u8 phy_index)
12104 {
12105 	struct bnx2x *bp = params->bp;
12106 	u32 link_config;
12107 	/* Populate the default phy configuration for MF mode */
12108 	if (phy_index == EXT_PHY2) {
12109 		link_config = REG_RD(bp, params->shmem_base +
12110 				     offsetof(struct shmem_region, dev_info.
12111 			port_feature_config[params->port].link_config2));
12112 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
12113 					     offsetof(struct shmem_region,
12114 						      dev_info.
12115 			port_hw_config[params->port].speed_capability_mask2));
12116 	} else {
12117 		link_config = REG_RD(bp, params->shmem_base +
12118 				     offsetof(struct shmem_region, dev_info.
12119 				port_feature_config[params->port].link_config));
12120 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
12121 					     offsetof(struct shmem_region,
12122 						      dev_info.
12123 			port_hw_config[params->port].speed_capability_mask));
12124 	}
12125 	DP(NETIF_MSG_LINK,
12126 	   "Default config phy idx %x cfg 0x%x speed_cap_mask 0x%x\n",
12127 	   phy_index, link_config, phy->speed_cap_mask);
12128 
12129 	phy->req_duplex = DUPLEX_FULL;
12130 	switch (link_config  & PORT_FEATURE_LINK_SPEED_MASK) {
12131 	case PORT_FEATURE_LINK_SPEED_10M_HALF:
12132 		phy->req_duplex = DUPLEX_HALF;
12133 	case PORT_FEATURE_LINK_SPEED_10M_FULL:
12134 		phy->req_line_speed = SPEED_10;
12135 		break;
12136 	case PORT_FEATURE_LINK_SPEED_100M_HALF:
12137 		phy->req_duplex = DUPLEX_HALF;
12138 	case PORT_FEATURE_LINK_SPEED_100M_FULL:
12139 		phy->req_line_speed = SPEED_100;
12140 		break;
12141 	case PORT_FEATURE_LINK_SPEED_1G:
12142 		phy->req_line_speed = SPEED_1000;
12143 		break;
12144 	case PORT_FEATURE_LINK_SPEED_2_5G:
12145 		phy->req_line_speed = SPEED_2500;
12146 		break;
12147 	case PORT_FEATURE_LINK_SPEED_10G_CX4:
12148 		phy->req_line_speed = SPEED_10000;
12149 		break;
12150 	default:
12151 		phy->req_line_speed = SPEED_AUTO_NEG;
12152 		break;
12153 	}
12154 
12155 	switch (link_config  & PORT_FEATURE_FLOW_CONTROL_MASK) {
12156 	case PORT_FEATURE_FLOW_CONTROL_AUTO:
12157 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_AUTO;
12158 		break;
12159 	case PORT_FEATURE_FLOW_CONTROL_TX:
12160 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_TX;
12161 		break;
12162 	case PORT_FEATURE_FLOW_CONTROL_RX:
12163 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_RX;
12164 		break;
12165 	case PORT_FEATURE_FLOW_CONTROL_BOTH:
12166 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
12167 		break;
12168 	default:
12169 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12170 		break;
12171 	}
12172 }
12173 
bnx2x_phy_selection(struct link_params * params)12174 u32 bnx2x_phy_selection(struct link_params *params)
12175 {
12176 	u32 phy_config_swapped, prio_cfg;
12177 	u32 return_cfg = PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT;
12178 
12179 	phy_config_swapped = params->multi_phy_config &
12180 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
12181 
12182 	prio_cfg = params->multi_phy_config &
12183 			PORT_HW_CFG_PHY_SELECTION_MASK;
12184 
12185 	if (phy_config_swapped) {
12186 		switch (prio_cfg) {
12187 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
12188 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY;
12189 		     break;
12190 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
12191 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY;
12192 		     break;
12193 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
12194 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
12195 		     break;
12196 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
12197 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
12198 		     break;
12199 		}
12200 	} else
12201 		return_cfg = prio_cfg;
12202 
12203 	return return_cfg;
12204 }
12205 
bnx2x_phy_probe(struct link_params * params)12206 int bnx2x_phy_probe(struct link_params *params)
12207 {
12208 	u8 phy_index, actual_phy_idx;
12209 	u32 phy_config_swapped, sync_offset, media_types;
12210 	struct bnx2x *bp = params->bp;
12211 	struct bnx2x_phy *phy;
12212 	params->num_phys = 0;
12213 	DP(NETIF_MSG_LINK, "Begin phy probe\n");
12214 	phy_config_swapped = params->multi_phy_config &
12215 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
12216 
12217 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
12218 	      phy_index++) {
12219 		actual_phy_idx = phy_index;
12220 		if (phy_config_swapped) {
12221 			if (phy_index == EXT_PHY1)
12222 				actual_phy_idx = EXT_PHY2;
12223 			else if (phy_index == EXT_PHY2)
12224 				actual_phy_idx = EXT_PHY1;
12225 		}
12226 		DP(NETIF_MSG_LINK, "phy_config_swapped %x, phy_index %x,"
12227 			       " actual_phy_idx %x\n", phy_config_swapped,
12228 			   phy_index, actual_phy_idx);
12229 		phy = &params->phy[actual_phy_idx];
12230 		if (bnx2x_populate_phy(bp, phy_index, params->shmem_base,
12231 				       params->shmem2_base, params->port,
12232 				       phy) != 0) {
12233 			params->num_phys = 0;
12234 			DP(NETIF_MSG_LINK, "phy probe failed in phy index %d\n",
12235 				   phy_index);
12236 			for (phy_index = INT_PHY;
12237 			      phy_index < MAX_PHYS;
12238 			      phy_index++)
12239 				*phy = phy_null;
12240 			return -EINVAL;
12241 		}
12242 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)
12243 			break;
12244 
12245 		if (params->feature_config_flags &
12246 		    FEATURE_CONFIG_DISABLE_REMOTE_FAULT_DET)
12247 			phy->flags &= ~FLAGS_TX_ERROR_CHECK;
12248 
12249 		if (!(params->feature_config_flags &
12250 		      FEATURE_CONFIG_MT_SUPPORT))
12251 			phy->flags |= FLAGS_MDC_MDIO_WA_G;
12252 
12253 		sync_offset = params->shmem_base +
12254 			offsetof(struct shmem_region,
12255 			dev_info.port_hw_config[params->port].media_type);
12256 		media_types = REG_RD(bp, sync_offset);
12257 
12258 		/* Update media type for non-PMF sync only for the first time
12259 		 * In case the media type changes afterwards, it will be updated
12260 		 * using the update_status function
12261 		 */
12262 		if ((media_types & (PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
12263 				    (PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
12264 				     actual_phy_idx))) == 0) {
12265 			media_types |= ((phy->media_type &
12266 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
12267 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
12268 				 actual_phy_idx));
12269 		}
12270 		REG_WR(bp, sync_offset, media_types);
12271 
12272 		bnx2x_phy_def_cfg(params, phy, phy_index);
12273 		params->num_phys++;
12274 	}
12275 
12276 	DP(NETIF_MSG_LINK, "End phy probe. #phys found %x\n", params->num_phys);
12277 	return 0;
12278 }
12279 
bnx2x_init_bmac_loopback(struct link_params * params,struct link_vars * vars)12280 static void bnx2x_init_bmac_loopback(struct link_params *params,
12281 				     struct link_vars *vars)
12282 {
12283 	struct bnx2x *bp = params->bp;
12284 		vars->link_up = 1;
12285 		vars->line_speed = SPEED_10000;
12286 		vars->duplex = DUPLEX_FULL;
12287 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12288 		vars->mac_type = MAC_TYPE_BMAC;
12289 
12290 		vars->phy_flags = PHY_XGXS_FLAG;
12291 
12292 		bnx2x_xgxs_deassert(params);
12293 
12294 		/* Set bmac loopback */
12295 		bnx2x_bmac_enable(params, vars, 1, 1);
12296 
12297 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12298 }
12299 
bnx2x_init_emac_loopback(struct link_params * params,struct link_vars * vars)12300 static void bnx2x_init_emac_loopback(struct link_params *params,
12301 				     struct link_vars *vars)
12302 {
12303 	struct bnx2x *bp = params->bp;
12304 		vars->link_up = 1;
12305 		vars->line_speed = SPEED_1000;
12306 		vars->duplex = DUPLEX_FULL;
12307 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12308 		vars->mac_type = MAC_TYPE_EMAC;
12309 
12310 		vars->phy_flags = PHY_XGXS_FLAG;
12311 
12312 		bnx2x_xgxs_deassert(params);
12313 		/* Set bmac loopback */
12314 		bnx2x_emac_enable(params, vars, 1);
12315 		bnx2x_emac_program(params, vars);
12316 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12317 }
12318 
bnx2x_init_xmac_loopback(struct link_params * params,struct link_vars * vars)12319 static void bnx2x_init_xmac_loopback(struct link_params *params,
12320 				     struct link_vars *vars)
12321 {
12322 	struct bnx2x *bp = params->bp;
12323 	vars->link_up = 1;
12324 	if (!params->req_line_speed[0])
12325 		vars->line_speed = SPEED_10000;
12326 	else
12327 		vars->line_speed = params->req_line_speed[0];
12328 	vars->duplex = DUPLEX_FULL;
12329 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12330 	vars->mac_type = MAC_TYPE_XMAC;
12331 	vars->phy_flags = PHY_XGXS_FLAG;
12332 	/* Set WC to loopback mode since link is required to provide clock
12333 	 * to the XMAC in 20G mode
12334 	 */
12335 	bnx2x_set_aer_mmd(params, &params->phy[0]);
12336 	bnx2x_warpcore_reset_lane(bp, &params->phy[0], 0);
12337 	params->phy[INT_PHY].config_loopback(
12338 			&params->phy[INT_PHY],
12339 			params);
12340 
12341 	bnx2x_xmac_enable(params, vars, 1);
12342 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12343 }
12344 
bnx2x_init_umac_loopback(struct link_params * params,struct link_vars * vars)12345 static void bnx2x_init_umac_loopback(struct link_params *params,
12346 				     struct link_vars *vars)
12347 {
12348 	struct bnx2x *bp = params->bp;
12349 	vars->link_up = 1;
12350 	vars->line_speed = SPEED_1000;
12351 	vars->duplex = DUPLEX_FULL;
12352 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12353 	vars->mac_type = MAC_TYPE_UMAC;
12354 	vars->phy_flags = PHY_XGXS_FLAG;
12355 	bnx2x_umac_enable(params, vars, 1);
12356 
12357 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12358 }
12359 
bnx2x_init_xgxs_loopback(struct link_params * params,struct link_vars * vars)12360 static void bnx2x_init_xgxs_loopback(struct link_params *params,
12361 				     struct link_vars *vars)
12362 {
12363 	struct bnx2x *bp = params->bp;
12364 	struct bnx2x_phy *int_phy = &params->phy[INT_PHY];
12365 	vars->link_up = 1;
12366 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12367 	vars->duplex = DUPLEX_FULL;
12368 	if (params->req_line_speed[0] == SPEED_1000)
12369 		vars->line_speed = SPEED_1000;
12370 	else if ((params->req_line_speed[0] == SPEED_20000) ||
12371 		 (int_phy->flags & FLAGS_WC_DUAL_MODE))
12372 		vars->line_speed = SPEED_20000;
12373 	else
12374 		vars->line_speed = SPEED_10000;
12375 
12376 	if (!USES_WARPCORE(bp))
12377 		bnx2x_xgxs_deassert(params);
12378 	bnx2x_link_initialize(params, vars);
12379 
12380 	if (params->req_line_speed[0] == SPEED_1000) {
12381 		if (USES_WARPCORE(bp))
12382 			bnx2x_umac_enable(params, vars, 0);
12383 		else {
12384 			bnx2x_emac_program(params, vars);
12385 			bnx2x_emac_enable(params, vars, 0);
12386 		}
12387 	} else {
12388 		if (USES_WARPCORE(bp))
12389 			bnx2x_xmac_enable(params, vars, 0);
12390 		else
12391 			bnx2x_bmac_enable(params, vars, 0, 1);
12392 	}
12393 
12394 	if (params->loopback_mode == LOOPBACK_XGXS) {
12395 		/* Set 10G XGXS loopback */
12396 		int_phy->config_loopback(int_phy, params);
12397 	} else {
12398 		/* Set external phy loopback */
12399 		u8 phy_index;
12400 		for (phy_index = EXT_PHY1;
12401 		      phy_index < params->num_phys; phy_index++)
12402 			if (params->phy[phy_index].config_loopback)
12403 				params->phy[phy_index].config_loopback(
12404 					&params->phy[phy_index],
12405 					params);
12406 	}
12407 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12408 
12409 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
12410 }
12411 
bnx2x_set_rx_filter(struct link_params * params,u8 en)12412 void bnx2x_set_rx_filter(struct link_params *params, u8 en)
12413 {
12414 	struct bnx2x *bp = params->bp;
12415 	u8 val = en * 0x1F;
12416 
12417 	/* Open / close the gate between the NIG and the BRB */
12418 	if (!CHIP_IS_E1x(bp))
12419 		val |= en * 0x20;
12420 	REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + params->port*4, val);
12421 
12422 	if (!CHIP_IS_E1(bp)) {
12423 		REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + params->port*4,
12424 		       en*0x3);
12425 	}
12426 
12427 	REG_WR(bp, (params->port ? NIG_REG_LLH1_BRB1_NOT_MCP :
12428 		    NIG_REG_LLH0_BRB1_NOT_MCP), en);
12429 }
bnx2x_avoid_link_flap(struct link_params * params,struct link_vars * vars)12430 static int bnx2x_avoid_link_flap(struct link_params *params,
12431 					    struct link_vars *vars)
12432 {
12433 	u32 phy_idx;
12434 	u32 dont_clear_stat, lfa_sts;
12435 	struct bnx2x *bp = params->bp;
12436 
12437 	/* Sync the link parameters */
12438 	bnx2x_link_status_update(params, vars);
12439 
12440 	/*
12441 	 * The module verification was already done by previous link owner,
12442 	 * so this call is meant only to get warning message
12443 	 */
12444 
12445 	for (phy_idx = INT_PHY; phy_idx < params->num_phys; phy_idx++) {
12446 		struct bnx2x_phy *phy = &params->phy[phy_idx];
12447 		if (phy->phy_specific_func) {
12448 			DP(NETIF_MSG_LINK, "Calling PHY specific func\n");
12449 			phy->phy_specific_func(phy, params, PHY_INIT);
12450 		}
12451 		if ((phy->media_type == ETH_PHY_SFPP_10G_FIBER) ||
12452 		    (phy->media_type == ETH_PHY_SFP_1G_FIBER) ||
12453 		    (phy->media_type == ETH_PHY_DA_TWINAX))
12454 			bnx2x_verify_sfp_module(phy, params);
12455 	}
12456 	lfa_sts = REG_RD(bp, params->lfa_base +
12457 			 offsetof(struct shmem_lfa,
12458 				  lfa_sts));
12459 
12460 	dont_clear_stat = lfa_sts & SHMEM_LFA_DONT_CLEAR_STAT;
12461 
12462 	/* Re-enable the NIG/MAC */
12463 	if (CHIP_IS_E3(bp)) {
12464 		if (!dont_clear_stat) {
12465 			REG_WR(bp, GRCBASE_MISC +
12466 			       MISC_REGISTERS_RESET_REG_2_CLEAR,
12467 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
12468 				params->port));
12469 			REG_WR(bp, GRCBASE_MISC +
12470 			       MISC_REGISTERS_RESET_REG_2_SET,
12471 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
12472 				params->port));
12473 		}
12474 		if (vars->line_speed < SPEED_10000)
12475 			bnx2x_umac_enable(params, vars, 0);
12476 		else
12477 			bnx2x_xmac_enable(params, vars, 0);
12478 	} else {
12479 		if (vars->line_speed < SPEED_10000)
12480 			bnx2x_emac_enable(params, vars, 0);
12481 		else
12482 			bnx2x_bmac_enable(params, vars, 0, !dont_clear_stat);
12483 	}
12484 
12485 	/* Increment LFA count */
12486 	lfa_sts = ((lfa_sts & ~LINK_FLAP_AVOIDANCE_COUNT_MASK) |
12487 		   (((((lfa_sts & LINK_FLAP_AVOIDANCE_COUNT_MASK) >>
12488 		       LINK_FLAP_AVOIDANCE_COUNT_OFFSET) + 1) & 0xff)
12489 		    << LINK_FLAP_AVOIDANCE_COUNT_OFFSET));
12490 	/* Clear link flap reason */
12491 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
12492 
12493 	REG_WR(bp, params->lfa_base +
12494 	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
12495 
12496 	/* Disable NIG DRAIN */
12497 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12498 
12499 	/* Enable interrupts */
12500 	bnx2x_link_int_enable(params);
12501 	return 0;
12502 }
12503 
bnx2x_cannot_avoid_link_flap(struct link_params * params,struct link_vars * vars,int lfa_status)12504 static void bnx2x_cannot_avoid_link_flap(struct link_params *params,
12505 					 struct link_vars *vars,
12506 					 int lfa_status)
12507 {
12508 	u32 lfa_sts, cfg_idx, tmp_val;
12509 	struct bnx2x *bp = params->bp;
12510 
12511 	bnx2x_link_reset(params, vars, 1);
12512 
12513 	if (!params->lfa_base)
12514 		return;
12515 	/* Store the new link parameters */
12516 	REG_WR(bp, params->lfa_base +
12517 	       offsetof(struct shmem_lfa, req_duplex),
12518 	       params->req_duplex[0] | (params->req_duplex[1] << 16));
12519 
12520 	REG_WR(bp, params->lfa_base +
12521 	       offsetof(struct shmem_lfa, req_flow_ctrl),
12522 	       params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16));
12523 
12524 	REG_WR(bp, params->lfa_base +
12525 	       offsetof(struct shmem_lfa, req_line_speed),
12526 	       params->req_line_speed[0] | (params->req_line_speed[1] << 16));
12527 
12528 	for (cfg_idx = 0; cfg_idx < SHMEM_LINK_CONFIG_SIZE; cfg_idx++) {
12529 		REG_WR(bp, params->lfa_base +
12530 		       offsetof(struct shmem_lfa,
12531 				speed_cap_mask[cfg_idx]),
12532 		       params->speed_cap_mask[cfg_idx]);
12533 	}
12534 
12535 	tmp_val = REG_RD(bp, params->lfa_base +
12536 			 offsetof(struct shmem_lfa, additional_config));
12537 	tmp_val &= ~REQ_FC_AUTO_ADV_MASK;
12538 	tmp_val |= params->req_fc_auto_adv;
12539 
12540 	REG_WR(bp, params->lfa_base +
12541 	       offsetof(struct shmem_lfa, additional_config), tmp_val);
12542 
12543 	lfa_sts = REG_RD(bp, params->lfa_base +
12544 			 offsetof(struct shmem_lfa, lfa_sts));
12545 
12546 	/* Clear the "Don't Clear Statistics" bit, and set reason */
12547 	lfa_sts &= ~SHMEM_LFA_DONT_CLEAR_STAT;
12548 
12549 	/* Set link flap reason */
12550 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
12551 	lfa_sts |= ((lfa_status & LFA_LINK_FLAP_REASON_MASK) <<
12552 		    LFA_LINK_FLAP_REASON_OFFSET);
12553 
12554 	/* Increment link flap counter */
12555 	lfa_sts = ((lfa_sts & ~LINK_FLAP_COUNT_MASK) |
12556 		   (((((lfa_sts & LINK_FLAP_COUNT_MASK) >>
12557 		       LINK_FLAP_COUNT_OFFSET) + 1) & 0xff)
12558 		    << LINK_FLAP_COUNT_OFFSET));
12559 	REG_WR(bp, params->lfa_base +
12560 	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
12561 	/* Proceed with regular link initialization */
12562 }
12563 
bnx2x_phy_init(struct link_params * params,struct link_vars * vars)12564 int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
12565 {
12566 	int lfa_status;
12567 	struct bnx2x *bp = params->bp;
12568 	DP(NETIF_MSG_LINK, "Phy Initialization started\n");
12569 	DP(NETIF_MSG_LINK, "(1) req_speed %d, req_flowctrl %d\n",
12570 		   params->req_line_speed[0], params->req_flow_ctrl[0]);
12571 	DP(NETIF_MSG_LINK, "(2) req_speed %d, req_flowctrl %d\n",
12572 		   params->req_line_speed[1], params->req_flow_ctrl[1]);
12573 	DP(NETIF_MSG_LINK, "req_adv_flow_ctrl 0x%x\n", params->req_fc_auto_adv);
12574 	vars->link_status = 0;
12575 	vars->phy_link_up = 0;
12576 	vars->link_up = 0;
12577 	vars->line_speed = 0;
12578 	vars->duplex = DUPLEX_FULL;
12579 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
12580 	vars->mac_type = MAC_TYPE_NONE;
12581 	vars->phy_flags = 0;
12582 	vars->check_kr2_recovery_cnt = 0;
12583 	params->link_flags = PHY_INITIALIZED;
12584 	/* Driver opens NIG-BRB filters */
12585 	bnx2x_set_rx_filter(params, 1);
12586 	/* Check if link flap can be avoided */
12587 	lfa_status = bnx2x_check_lfa(params);
12588 
12589 	if (lfa_status == 0) {
12590 		DP(NETIF_MSG_LINK, "Link Flap Avoidance in progress\n");
12591 		return bnx2x_avoid_link_flap(params, vars);
12592 	}
12593 
12594 	DP(NETIF_MSG_LINK, "Cannot avoid link flap lfa_sta=0x%x\n",
12595 		       lfa_status);
12596 	bnx2x_cannot_avoid_link_flap(params, vars, lfa_status);
12597 
12598 	/* Disable attentions */
12599 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
12600 		       (NIG_MASK_XGXS0_LINK_STATUS |
12601 			NIG_MASK_XGXS0_LINK10G |
12602 			NIG_MASK_SERDES0_LINK_STATUS |
12603 			NIG_MASK_MI_INT));
12604 
12605 	bnx2x_emac_init(params, vars);
12606 
12607 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
12608 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
12609 
12610 	if (params->num_phys == 0) {
12611 		DP(NETIF_MSG_LINK, "No phy found for initialization !!\n");
12612 		return -EINVAL;
12613 	}
12614 	set_phy_vars(params, vars);
12615 
12616 	DP(NETIF_MSG_LINK, "Num of phys on board: %d\n", params->num_phys);
12617 	switch (params->loopback_mode) {
12618 	case LOOPBACK_BMAC:
12619 		bnx2x_init_bmac_loopback(params, vars);
12620 		break;
12621 	case LOOPBACK_EMAC:
12622 		bnx2x_init_emac_loopback(params, vars);
12623 		break;
12624 	case LOOPBACK_XMAC:
12625 		bnx2x_init_xmac_loopback(params, vars);
12626 		break;
12627 	case LOOPBACK_UMAC:
12628 		bnx2x_init_umac_loopback(params, vars);
12629 		break;
12630 	case LOOPBACK_XGXS:
12631 	case LOOPBACK_EXT_PHY:
12632 		bnx2x_init_xgxs_loopback(params, vars);
12633 		break;
12634 	default:
12635 		if (!CHIP_IS_E3(bp)) {
12636 			if (params->switch_cfg == SWITCH_CFG_10G)
12637 				bnx2x_xgxs_deassert(params);
12638 			else
12639 				bnx2x_serdes_deassert(bp, params->port);
12640 		}
12641 		bnx2x_link_initialize(params, vars);
12642 		msleep(30);
12643 		bnx2x_link_int_enable(params);
12644 		break;
12645 	}
12646 	bnx2x_update_mng(params, vars->link_status);
12647 
12648 	bnx2x_update_mng_eee(params, vars->eee_status);
12649 	return 0;
12650 }
12651 
bnx2x_link_reset(struct link_params * params,struct link_vars * vars,u8 reset_ext_phy)12652 int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
12653 		     u8 reset_ext_phy)
12654 {
12655 	struct bnx2x *bp = params->bp;
12656 	u8 phy_index, port = params->port, clear_latch_ind = 0;
12657 	DP(NETIF_MSG_LINK, "Resetting the link of port %d\n", port);
12658 	/* Disable attentions */
12659 	vars->link_status = 0;
12660 	bnx2x_update_mng(params, vars->link_status);
12661 	vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
12662 			      SHMEM_EEE_ACTIVE_BIT);
12663 	bnx2x_update_mng_eee(params, vars->eee_status);
12664 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
12665 		       (NIG_MASK_XGXS0_LINK_STATUS |
12666 			NIG_MASK_XGXS0_LINK10G |
12667 			NIG_MASK_SERDES0_LINK_STATUS |
12668 			NIG_MASK_MI_INT));
12669 
12670 	/* Activate nig drain */
12671 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
12672 
12673 	/* Disable nig egress interface */
12674 	if (!CHIP_IS_E3(bp)) {
12675 		REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0);
12676 		REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0);
12677 	}
12678 
12679 		if (!CHIP_IS_E3(bp)) {
12680 			bnx2x_set_bmac_rx(bp, params->chip_id, port, 0);
12681 		} else {
12682 			bnx2x_set_xmac_rxtx(params, 0);
12683 			bnx2x_set_umac_rxtx(params, 0);
12684 		}
12685 	/* Disable emac */
12686 	if (!CHIP_IS_E3(bp))
12687 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
12688 
12689 	usleep_range(10000, 20000);
12690 	/* The PHY reset is controlled by GPIO 1
12691 	 * Hold it as vars low
12692 	 */
12693 	 /* Clear link led */
12694 	bnx2x_set_mdio_emac_per_phy(bp, params);
12695 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
12696 
12697 	if (reset_ext_phy) {
12698 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
12699 		      phy_index++) {
12700 			if (params->phy[phy_index].link_reset) {
12701 				bnx2x_set_aer_mmd(params,
12702 						  &params->phy[phy_index]);
12703 				params->phy[phy_index].link_reset(
12704 					&params->phy[phy_index],
12705 					params);
12706 			}
12707 			if (params->phy[phy_index].flags &
12708 			    FLAGS_REARM_LATCH_SIGNAL)
12709 				clear_latch_ind = 1;
12710 		}
12711 	}
12712 
12713 	if (clear_latch_ind) {
12714 		/* Clear latching indication */
12715 		bnx2x_rearm_latch_signal(bp, port, 0);
12716 		bnx2x_bits_dis(bp, NIG_REG_LATCH_BC_0 + port*4,
12717 			       1 << NIG_LATCH_BC_ENABLE_MI_INT);
12718 	}
12719 	if (params->phy[INT_PHY].link_reset)
12720 		params->phy[INT_PHY].link_reset(
12721 			&params->phy[INT_PHY], params);
12722 
12723 	/* Disable nig ingress interface */
12724 	if (!CHIP_IS_E3(bp)) {
12725 		/* Reset BigMac */
12726 		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
12727 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
12728 		REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0);
12729 		REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0);
12730 	} else {
12731 		u32 xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
12732 		bnx2x_set_xumac_nig(params, 0, 0);
12733 		if (REG_RD(bp, MISC_REG_RESET_REG_2) &
12734 		    MISC_REGISTERS_RESET_REG_2_XMAC)
12735 			REG_WR(bp, xmac_base + XMAC_REG_CTRL,
12736 			       XMAC_CTRL_REG_SOFT_RESET);
12737 	}
12738 	vars->link_up = 0;
12739 	vars->phy_flags = 0;
12740 	return 0;
12741 }
bnx2x_lfa_reset(struct link_params * params,struct link_vars * vars)12742 int bnx2x_lfa_reset(struct link_params *params,
12743 			       struct link_vars *vars)
12744 {
12745 	struct bnx2x *bp = params->bp;
12746 	vars->link_up = 0;
12747 	vars->phy_flags = 0;
12748 	params->link_flags &= ~PHY_INITIALIZED;
12749 	if (!params->lfa_base)
12750 		return bnx2x_link_reset(params, vars, 1);
12751 	/*
12752 	 * Activate NIG drain so that during this time the device won't send
12753 	 * anything while it is unable to response.
12754 	 */
12755 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
12756 
12757 	/*
12758 	 * Close gracefully the gate from BMAC to NIG such that no half packets
12759 	 * are passed.
12760 	 */
12761 	if (!CHIP_IS_E3(bp))
12762 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
12763 
12764 	if (CHIP_IS_E3(bp)) {
12765 		bnx2x_set_xmac_rxtx(params, 0);
12766 		bnx2x_set_umac_rxtx(params, 0);
12767 	}
12768 	/* Wait 10ms for the pipe to clean up*/
12769 	usleep_range(10000, 20000);
12770 
12771 	/* Clean the NIG-BRB using the network filters in a way that will
12772 	 * not cut a packet in the middle.
12773 	 */
12774 	bnx2x_set_rx_filter(params, 0);
12775 
12776 	/*
12777 	 * Re-open the gate between the BMAC and the NIG, after verifying the
12778 	 * gate to the BRB is closed, otherwise packets may arrive to the
12779 	 * firmware before driver had initialized it. The target is to achieve
12780 	 * minimum management protocol down time.
12781 	 */
12782 	if (!CHIP_IS_E3(bp))
12783 		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 1);
12784 
12785 	if (CHIP_IS_E3(bp)) {
12786 		bnx2x_set_xmac_rxtx(params, 1);
12787 		bnx2x_set_umac_rxtx(params, 1);
12788 	}
12789 	/* Disable NIG drain */
12790 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
12791 	return 0;
12792 }
12793 
12794 /****************************************************************************/
12795 /*				Common function				    */
12796 /****************************************************************************/
bnx2x_8073_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12797 static int bnx2x_8073_common_init_phy(struct bnx2x *bp,
12798 				      u32 shmem_base_path[],
12799 				      u32 shmem2_base_path[], u8 phy_index,
12800 				      u32 chip_id)
12801 {
12802 	struct bnx2x_phy phy[PORT_MAX];
12803 	struct bnx2x_phy *phy_blk[PORT_MAX];
12804 	u16 val;
12805 	s8 port = 0;
12806 	s8 port_of_path = 0;
12807 	u32 swap_val, swap_override;
12808 	swap_val = REG_RD(bp,  NIG_REG_PORT_SWAP);
12809 	swap_override = REG_RD(bp,  NIG_REG_STRAP_OVERRIDE);
12810 	port ^= (swap_val && swap_override);
12811 	bnx2x_ext_phy_hw_reset(bp, port);
12812 	/* PART1 - Reset both phys */
12813 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12814 		u32 shmem_base, shmem2_base;
12815 		/* In E2, same phy is using for port0 of the two paths */
12816 		if (CHIP_IS_E1x(bp)) {
12817 			shmem_base = shmem_base_path[0];
12818 			shmem2_base = shmem2_base_path[0];
12819 			port_of_path = port;
12820 		} else {
12821 			shmem_base = shmem_base_path[port];
12822 			shmem2_base = shmem2_base_path[port];
12823 			port_of_path = 0;
12824 		}
12825 
12826 		/* Extract the ext phy address for the port */
12827 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12828 				       port_of_path, &phy[port]) !=
12829 		    0) {
12830 			DP(NETIF_MSG_LINK, "populate_phy failed\n");
12831 			return -EINVAL;
12832 		}
12833 		/* Disable attentions */
12834 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
12835 			       port_of_path*4,
12836 			       (NIG_MASK_XGXS0_LINK_STATUS |
12837 				NIG_MASK_XGXS0_LINK10G |
12838 				NIG_MASK_SERDES0_LINK_STATUS |
12839 				NIG_MASK_MI_INT));
12840 
12841 		/* Need to take the phy out of low power mode in order
12842 		 * to write to access its registers
12843 		 */
12844 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
12845 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
12846 			       port);
12847 
12848 		/* Reset the phy */
12849 		bnx2x_cl45_write(bp, &phy[port],
12850 				 MDIO_PMA_DEVAD,
12851 				 MDIO_PMA_REG_CTRL,
12852 				 1<<15);
12853 	}
12854 
12855 	/* Add delay of 150ms after reset */
12856 	msleep(150);
12857 
12858 	if (phy[PORT_0].addr & 0x1) {
12859 		phy_blk[PORT_0] = &(phy[PORT_1]);
12860 		phy_blk[PORT_1] = &(phy[PORT_0]);
12861 	} else {
12862 		phy_blk[PORT_0] = &(phy[PORT_0]);
12863 		phy_blk[PORT_1] = &(phy[PORT_1]);
12864 	}
12865 
12866 	/* PART2 - Download firmware to both phys */
12867 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12868 		if (CHIP_IS_E1x(bp))
12869 			port_of_path = port;
12870 		else
12871 			port_of_path = 0;
12872 
12873 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
12874 			   phy_blk[port]->addr);
12875 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
12876 						      port_of_path))
12877 			return -EINVAL;
12878 
12879 		/* Only set bit 10 = 1 (Tx power down) */
12880 		bnx2x_cl45_read(bp, phy_blk[port],
12881 				MDIO_PMA_DEVAD,
12882 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
12883 
12884 		/* Phase1 of TX_POWER_DOWN reset */
12885 		bnx2x_cl45_write(bp, phy_blk[port],
12886 				 MDIO_PMA_DEVAD,
12887 				 MDIO_PMA_REG_TX_POWER_DOWN,
12888 				 (val | 1<<10));
12889 	}
12890 
12891 	/* Toggle Transmitter: Power down and then up with 600ms delay
12892 	 * between
12893 	 */
12894 	msleep(600);
12895 
12896 	/* PART3 - complete TX_POWER_DOWN process, and set GPIO2 back to low */
12897 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12898 		/* Phase2 of POWER_DOWN_RESET */
12899 		/* Release bit 10 (Release Tx power down) */
12900 		bnx2x_cl45_read(bp, phy_blk[port],
12901 				MDIO_PMA_DEVAD,
12902 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
12903 
12904 		bnx2x_cl45_write(bp, phy_blk[port],
12905 				MDIO_PMA_DEVAD,
12906 				MDIO_PMA_REG_TX_POWER_DOWN, (val & (~(1<<10))));
12907 		usleep_range(15000, 30000);
12908 
12909 		/* Read modify write the SPI-ROM version select register */
12910 		bnx2x_cl45_read(bp, phy_blk[port],
12911 				MDIO_PMA_DEVAD,
12912 				MDIO_PMA_REG_EDC_FFE_MAIN, &val);
12913 		bnx2x_cl45_write(bp, phy_blk[port],
12914 				 MDIO_PMA_DEVAD,
12915 				 MDIO_PMA_REG_EDC_FFE_MAIN, (val | (1<<12)));
12916 
12917 		/* set GPIO2 back to LOW */
12918 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
12919 			       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
12920 	}
12921 	return 0;
12922 }
bnx2x_8726_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12923 static int bnx2x_8726_common_init_phy(struct bnx2x *bp,
12924 				      u32 shmem_base_path[],
12925 				      u32 shmem2_base_path[], u8 phy_index,
12926 				      u32 chip_id)
12927 {
12928 	u32 val;
12929 	s8 port;
12930 	struct bnx2x_phy phy;
12931 	/* Use port1 because of the static port-swap */
12932 	/* Enable the module detection interrupt */
12933 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
12934 	val |= ((1<<MISC_REGISTERS_GPIO_3)|
12935 		(1<<(MISC_REGISTERS_GPIO_3 + MISC_REGISTERS_GPIO_PORT_SHIFT)));
12936 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
12937 
12938 	bnx2x_ext_phy_hw_reset(bp, 0);
12939 	usleep_range(5000, 10000);
12940 	for (port = 0; port < PORT_MAX; port++) {
12941 		u32 shmem_base, shmem2_base;
12942 
12943 		/* In E2, same phy is using for port0 of the two paths */
12944 		if (CHIP_IS_E1x(bp)) {
12945 			shmem_base = shmem_base_path[0];
12946 			shmem2_base = shmem2_base_path[0];
12947 		} else {
12948 			shmem_base = shmem_base_path[port];
12949 			shmem2_base = shmem2_base_path[port];
12950 		}
12951 		/* Extract the ext phy address for the port */
12952 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12953 				       port, &phy) !=
12954 		    0) {
12955 			DP(NETIF_MSG_LINK, "populate phy failed\n");
12956 			return -EINVAL;
12957 		}
12958 
12959 		/* Reset phy*/
12960 		bnx2x_cl45_write(bp, &phy,
12961 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x0001);
12962 
12963 
12964 		/* Set fault module detected LED on */
12965 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_0,
12966 			       MISC_REGISTERS_GPIO_HIGH,
12967 			       port);
12968 	}
12969 
12970 	return 0;
12971 }
bnx2x_get_ext_phy_reset_gpio(struct bnx2x * bp,u32 shmem_base,u8 * io_gpio,u8 * io_port)12972 static void bnx2x_get_ext_phy_reset_gpio(struct bnx2x *bp, u32 shmem_base,
12973 					 u8 *io_gpio, u8 *io_port)
12974 {
12975 
12976 	u32 phy_gpio_reset = REG_RD(bp, shmem_base +
12977 					  offsetof(struct shmem_region,
12978 				dev_info.port_hw_config[PORT_0].default_cfg));
12979 	switch (phy_gpio_reset) {
12980 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0:
12981 		*io_gpio = 0;
12982 		*io_port = 0;
12983 		break;
12984 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P0:
12985 		*io_gpio = 1;
12986 		*io_port = 0;
12987 		break;
12988 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P0:
12989 		*io_gpio = 2;
12990 		*io_port = 0;
12991 		break;
12992 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P0:
12993 		*io_gpio = 3;
12994 		*io_port = 0;
12995 		break;
12996 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P1:
12997 		*io_gpio = 0;
12998 		*io_port = 1;
12999 		break;
13000 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P1:
13001 		*io_gpio = 1;
13002 		*io_port = 1;
13003 		break;
13004 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P1:
13005 		*io_gpio = 2;
13006 		*io_port = 1;
13007 		break;
13008 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P1:
13009 		*io_gpio = 3;
13010 		*io_port = 1;
13011 		break;
13012 	default:
13013 		/* Don't override the io_gpio and io_port */
13014 		break;
13015 	}
13016 }
13017 
bnx2x_8727_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13018 static int bnx2x_8727_common_init_phy(struct bnx2x *bp,
13019 				      u32 shmem_base_path[],
13020 				      u32 shmem2_base_path[], u8 phy_index,
13021 				      u32 chip_id)
13022 {
13023 	s8 port, reset_gpio;
13024 	u32 swap_val, swap_override;
13025 	struct bnx2x_phy phy[PORT_MAX];
13026 	struct bnx2x_phy *phy_blk[PORT_MAX];
13027 	s8 port_of_path;
13028 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
13029 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
13030 
13031 	reset_gpio = MISC_REGISTERS_GPIO_1;
13032 	port = 1;
13033 
13034 	/* Retrieve the reset gpio/port which control the reset.
13035 	 * Default is GPIO1, PORT1
13036 	 */
13037 	bnx2x_get_ext_phy_reset_gpio(bp, shmem_base_path[0],
13038 				     (u8 *)&reset_gpio, (u8 *)&port);
13039 
13040 	/* Calculate the port based on port swap */
13041 	port ^= (swap_val && swap_override);
13042 
13043 	/* Initiate PHY reset*/
13044 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_LOW,
13045 		       port);
13046 	usleep_range(1000, 2000);
13047 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_HIGH,
13048 		       port);
13049 
13050 	usleep_range(5000, 10000);
13051 
13052 	/* PART1 - Reset both phys */
13053 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13054 		u32 shmem_base, shmem2_base;
13055 
13056 		/* In E2, same phy is using for port0 of the two paths */
13057 		if (CHIP_IS_E1x(bp)) {
13058 			shmem_base = shmem_base_path[0];
13059 			shmem2_base = shmem2_base_path[0];
13060 			port_of_path = port;
13061 		} else {
13062 			shmem_base = shmem_base_path[port];
13063 			shmem2_base = shmem2_base_path[port];
13064 			port_of_path = 0;
13065 		}
13066 
13067 		/* Extract the ext phy address for the port */
13068 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13069 				       port_of_path, &phy[port]) !=
13070 				       0) {
13071 			DP(NETIF_MSG_LINK, "populate phy failed\n");
13072 			return -EINVAL;
13073 		}
13074 		/* disable attentions */
13075 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
13076 			       port_of_path*4,
13077 			       (NIG_MASK_XGXS0_LINK_STATUS |
13078 				NIG_MASK_XGXS0_LINK10G |
13079 				NIG_MASK_SERDES0_LINK_STATUS |
13080 				NIG_MASK_MI_INT));
13081 
13082 
13083 		/* Reset the phy */
13084 		bnx2x_cl45_write(bp, &phy[port],
13085 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
13086 	}
13087 
13088 	/* Add delay of 150ms after reset */
13089 	msleep(150);
13090 	if (phy[PORT_0].addr & 0x1) {
13091 		phy_blk[PORT_0] = &(phy[PORT_1]);
13092 		phy_blk[PORT_1] = &(phy[PORT_0]);
13093 	} else {
13094 		phy_blk[PORT_0] = &(phy[PORT_0]);
13095 		phy_blk[PORT_1] = &(phy[PORT_1]);
13096 	}
13097 	/* PART2 - Download firmware to both phys */
13098 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
13099 		if (CHIP_IS_E1x(bp))
13100 			port_of_path = port;
13101 		else
13102 			port_of_path = 0;
13103 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
13104 			   phy_blk[port]->addr);
13105 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
13106 						      port_of_path))
13107 			return -EINVAL;
13108 		/* Disable PHY transmitter output */
13109 		bnx2x_cl45_write(bp, phy_blk[port],
13110 				 MDIO_PMA_DEVAD,
13111 				 MDIO_PMA_REG_TX_DISABLE, 1);
13112 
13113 	}
13114 	return 0;
13115 }
13116 
bnx2x_84833_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)13117 static int bnx2x_84833_common_init_phy(struct bnx2x *bp,
13118 						u32 shmem_base_path[],
13119 						u32 shmem2_base_path[],
13120 						u8 phy_index,
13121 						u32 chip_id)
13122 {
13123 	u8 reset_gpios;
13124 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path, chip_id);
13125 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
13126 	udelay(10);
13127 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_HIGH);
13128 	DP(NETIF_MSG_LINK, "84833 reset pulse on pin values 0x%x\n",
13129 		reset_gpios);
13130 	return 0;
13131 }
13132 
bnx2x_ext_phy_common_init(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 ext_phy_type,u32 chip_id)13133 static int bnx2x_ext_phy_common_init(struct bnx2x *bp, u32 shmem_base_path[],
13134 				     u32 shmem2_base_path[], u8 phy_index,
13135 				     u32 ext_phy_type, u32 chip_id)
13136 {
13137 	int rc = 0;
13138 
13139 	switch (ext_phy_type) {
13140 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
13141 		rc = bnx2x_8073_common_init_phy(bp, shmem_base_path,
13142 						shmem2_base_path,
13143 						phy_index, chip_id);
13144 		break;
13145 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
13146 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
13147 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
13148 		rc = bnx2x_8727_common_init_phy(bp, shmem_base_path,
13149 						shmem2_base_path,
13150 						phy_index, chip_id);
13151 		break;
13152 
13153 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
13154 		/* GPIO1 affects both ports, so there's need to pull
13155 		 * it for single port alone
13156 		 */
13157 		rc = bnx2x_8726_common_init_phy(bp, shmem_base_path,
13158 						shmem2_base_path,
13159 						phy_index, chip_id);
13160 		break;
13161 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
13162 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
13163 		/* GPIO3's are linked, and so both need to be toggled
13164 		 * to obtain required 2us pulse.
13165 		 */
13166 		rc = bnx2x_84833_common_init_phy(bp, shmem_base_path,
13167 						shmem2_base_path,
13168 						phy_index, chip_id);
13169 		break;
13170 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
13171 		rc = -EINVAL;
13172 		break;
13173 	default:
13174 		DP(NETIF_MSG_LINK,
13175 			   "ext_phy 0x%x common init not required\n",
13176 			   ext_phy_type);
13177 		break;
13178 	}
13179 
13180 	if (rc)
13181 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
13182 				      " Port %d\n",
13183 			 0);
13184 	return rc;
13185 }
13186 
bnx2x_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u32 chip_id)13187 int bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base_path[],
13188 			  u32 shmem2_base_path[], u32 chip_id)
13189 {
13190 	int rc = 0;
13191 	u32 phy_ver, val;
13192 	u8 phy_index = 0;
13193 	u32 ext_phy_type, ext_phy_config;
13194 
13195 	bnx2x_set_mdio_clk(bp, chip_id, GRCBASE_EMAC0);
13196 	bnx2x_set_mdio_clk(bp, chip_id, GRCBASE_EMAC1);
13197 	DP(NETIF_MSG_LINK, "Begin common phy init\n");
13198 	if (CHIP_IS_E3(bp)) {
13199 		/* Enable EPIO */
13200 		val = REG_RD(bp, MISC_REG_GEN_PURP_HWG);
13201 		REG_WR(bp, MISC_REG_GEN_PURP_HWG, val | 1);
13202 	}
13203 	/* Check if common init was already done */
13204 	phy_ver = REG_RD(bp, shmem_base_path[0] +
13205 			 offsetof(struct shmem_region,
13206 				  port_mb[PORT_0].ext_phy_fw_version));
13207 	if (phy_ver) {
13208 		DP(NETIF_MSG_LINK, "Not doing common init; phy ver is 0x%x\n",
13209 			       phy_ver);
13210 		return 0;
13211 	}
13212 
13213 	/* Read the ext_phy_type for arbitrary port(0) */
13214 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
13215 	      phy_index++) {
13216 		ext_phy_config = bnx2x_get_ext_phy_config(bp,
13217 							  shmem_base_path[0],
13218 							  phy_index, 0);
13219 		ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
13220 		rc |= bnx2x_ext_phy_common_init(bp, shmem_base_path,
13221 						shmem2_base_path,
13222 						phy_index, ext_phy_type,
13223 						chip_id);
13224 	}
13225 	return rc;
13226 }
13227 
bnx2x_check_over_curr(struct link_params * params,struct link_vars * vars)13228 static void bnx2x_check_over_curr(struct link_params *params,
13229 				  struct link_vars *vars)
13230 {
13231 	struct bnx2x *bp = params->bp;
13232 	u32 cfg_pin;
13233 	u8 port = params->port;
13234 	u32 pin_val;
13235 
13236 	cfg_pin = (REG_RD(bp, params->shmem_base +
13237 			  offsetof(struct shmem_region,
13238 			       dev_info.port_hw_config[port].e3_cmn_pin_cfg1)) &
13239 		   PORT_HW_CFG_E3_OVER_CURRENT_MASK) >>
13240 		PORT_HW_CFG_E3_OVER_CURRENT_SHIFT;
13241 
13242 	/* Ignore check if no external input PIN available */
13243 	if (bnx2x_get_cfg_pin(bp, cfg_pin, &pin_val) != 0)
13244 		return;
13245 
13246 	if (!pin_val) {
13247 		if ((vars->phy_flags & PHY_OVER_CURRENT_FLAG) == 0) {
13248 			netdev_err(bp->dev, "Error:  Power fault on Port %d has"
13249 					    " been detected and the power to "
13250 					    "that SFP+ module has been removed"
13251 					    " to prevent failure of the card."
13252 					    " Please remove the SFP+ module and"
13253 					    " restart the system to clear this"
13254 					    " error.\n",
13255 			 params->port);
13256 			vars->phy_flags |= PHY_OVER_CURRENT_FLAG;
13257 			bnx2x_warpcore_power_module(params, 0);
13258 		}
13259 	} else
13260 		vars->phy_flags &= ~PHY_OVER_CURRENT_FLAG;
13261 }
13262 
13263 /* Returns 0 if no change occured since last check; 1 otherwise. */
bnx2x_analyze_link_error(struct link_params * params,struct link_vars * vars,u32 status,u32 phy_flag,u32 link_flag,u8 notify)13264 static u8 bnx2x_analyze_link_error(struct link_params *params,
13265 				    struct link_vars *vars, u32 status,
13266 				    u32 phy_flag, u32 link_flag, u8 notify)
13267 {
13268 	struct bnx2x *bp = params->bp;
13269 	/* Compare new value with previous value */
13270 	u8 led_mode;
13271 	u32 old_status = (vars->phy_flags & phy_flag) ? 1 : 0;
13272 
13273 	if ((status ^ old_status) == 0)
13274 		return 0;
13275 
13276 	/* If values differ */
13277 	switch (phy_flag) {
13278 	case PHY_HALF_OPEN_CONN_FLAG:
13279 		DP(NETIF_MSG_LINK, "Analyze Remote Fault\n");
13280 		break;
13281 	case PHY_SFP_TX_FAULT_FLAG:
13282 		DP(NETIF_MSG_LINK, "Analyze TX Fault\n");
13283 		break;
13284 	default:
13285 		DP(NETIF_MSG_LINK, "Analyze UNKNOWN\n");
13286 	}
13287 	DP(NETIF_MSG_LINK, "Link changed:[%x %x]->%x\n", vars->link_up,
13288 	   old_status, status);
13289 
13290 	/* a. Update shmem->link_status accordingly
13291 	 * b. Update link_vars->link_up
13292 	 */
13293 	if (status) {
13294 		vars->link_status &= ~LINK_STATUS_LINK_UP;
13295 		vars->link_status |= link_flag;
13296 		vars->link_up = 0;
13297 		vars->phy_flags |= phy_flag;
13298 
13299 		/* activate nig drain */
13300 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
13301 		/* Set LED mode to off since the PHY doesn't know about these
13302 		 * errors
13303 		 */
13304 		led_mode = LED_MODE_OFF;
13305 	} else {
13306 		vars->link_status |= LINK_STATUS_LINK_UP;
13307 		vars->link_status &= ~link_flag;
13308 		vars->link_up = 1;
13309 		vars->phy_flags &= ~phy_flag;
13310 		led_mode = LED_MODE_OPER;
13311 
13312 		/* Clear nig drain */
13313 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13314 	}
13315 	bnx2x_sync_link(params, vars);
13316 	/* Update the LED according to the link state */
13317 	bnx2x_set_led(params, vars, led_mode, SPEED_10000);
13318 
13319 	/* Update link status in the shared memory */
13320 	bnx2x_update_mng(params, vars->link_status);
13321 
13322 	/* C. Trigger General Attention */
13323 	vars->periodic_flags |= PERIODIC_FLAGS_LINK_EVENT;
13324 	if (notify)
13325 		bnx2x_notify_link_changed(bp);
13326 
13327 	return 1;
13328 }
13329 
13330 /******************************************************************************
13331 * Description:
13332 *	This function checks for half opened connection change indication.
13333 *	When such change occurs, it calls the bnx2x_analyze_link_error
13334 *	to check if Remote Fault is set or cleared. Reception of remote fault
13335 *	status message in the MAC indicates that the peer's MAC has detected
13336 *	a fault, for example, due to break in the TX side of fiber.
13337 *
13338 ******************************************************************************/
bnx2x_check_half_open_conn(struct link_params * params,struct link_vars * vars,u8 notify)13339 int bnx2x_check_half_open_conn(struct link_params *params,
13340 				struct link_vars *vars,
13341 				u8 notify)
13342 {
13343 	struct bnx2x *bp = params->bp;
13344 	u32 lss_status = 0;
13345 	u32 mac_base;
13346 	/* In case link status is physically up @ 10G do */
13347 	if (((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0) ||
13348 	    (REG_RD(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4)))
13349 		return 0;
13350 
13351 	if (CHIP_IS_E3(bp) &&
13352 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
13353 	      (MISC_REGISTERS_RESET_REG_2_XMAC))) {
13354 		/* Check E3 XMAC */
13355 		/* Note that link speed cannot be queried here, since it may be
13356 		 * zero while link is down. In case UMAC is active, LSS will
13357 		 * simply not be set
13358 		 */
13359 		mac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
13360 
13361 		/* Clear stick bits (Requires rising edge) */
13362 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
13363 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
13364 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
13365 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
13366 		if (REG_RD(bp, mac_base + XMAC_REG_RX_LSS_STATUS))
13367 			lss_status = 1;
13368 
13369 		bnx2x_analyze_link_error(params, vars, lss_status,
13370 					 PHY_HALF_OPEN_CONN_FLAG,
13371 					 LINK_STATUS_NONE, notify);
13372 	} else if (REG_RD(bp, MISC_REG_RESET_REG_2) &
13373 		   (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) {
13374 		/* Check E1X / E2 BMAC */
13375 		u32 lss_status_reg;
13376 		u32 wb_data[2];
13377 		mac_base = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
13378 			NIG_REG_INGRESS_BMAC0_MEM;
13379 		/*  Read BIGMAC_REGISTER_RX_LSS_STATUS */
13380 		if (CHIP_IS_E2(bp))
13381 			lss_status_reg = BIGMAC2_REGISTER_RX_LSS_STAT;
13382 		else
13383 			lss_status_reg = BIGMAC_REGISTER_RX_LSS_STATUS;
13384 
13385 		REG_RD_DMAE(bp, mac_base + lss_status_reg, wb_data, 2);
13386 		lss_status = (wb_data[0] > 0);
13387 
13388 		bnx2x_analyze_link_error(params, vars, lss_status,
13389 					 PHY_HALF_OPEN_CONN_FLAG,
13390 					 LINK_STATUS_NONE, notify);
13391 	}
13392 	return 0;
13393 }
bnx2x_sfp_tx_fault_detection(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)13394 static void bnx2x_sfp_tx_fault_detection(struct bnx2x_phy *phy,
13395 					 struct link_params *params,
13396 					 struct link_vars *vars)
13397 {
13398 	struct bnx2x *bp = params->bp;
13399 	u32 cfg_pin, value = 0;
13400 	u8 led_change, port = params->port;
13401 
13402 	/* Get The SFP+ TX_Fault controlling pin ([eg]pio) */
13403 	cfg_pin = (REG_RD(bp, params->shmem_base + offsetof(struct shmem_region,
13404 			  dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
13405 		   PORT_HW_CFG_E3_TX_FAULT_MASK) >>
13406 		  PORT_HW_CFG_E3_TX_FAULT_SHIFT;
13407 
13408 	if (bnx2x_get_cfg_pin(bp, cfg_pin, &value)) {
13409 		DP(NETIF_MSG_LINK, "Failed to read pin 0x%02x\n", cfg_pin);
13410 		return;
13411 	}
13412 
13413 	led_change = bnx2x_analyze_link_error(params, vars, value,
13414 					      PHY_SFP_TX_FAULT_FLAG,
13415 					      LINK_STATUS_SFP_TX_FAULT, 1);
13416 
13417 	if (led_change) {
13418 		/* Change TX_Fault led, set link status for further syncs */
13419 		u8 led_mode;
13420 
13421 		if (vars->phy_flags & PHY_SFP_TX_FAULT_FLAG) {
13422 			led_mode = MISC_REGISTERS_GPIO_HIGH;
13423 			vars->link_status |= LINK_STATUS_SFP_TX_FAULT;
13424 		} else {
13425 			led_mode = MISC_REGISTERS_GPIO_LOW;
13426 			vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
13427 		}
13428 
13429 		/* If module is unapproved, led should be on regardless */
13430 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED)) {
13431 			DP(NETIF_MSG_LINK, "Change TX_Fault LED: ->%x\n",
13432 			   led_mode);
13433 			bnx2x_set_e3_module_fault_led(params, led_mode);
13434 		}
13435 	}
13436 }
bnx2x_disable_kr2(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)13437 static void bnx2x_disable_kr2(struct link_params *params,
13438 			      struct link_vars *vars,
13439 			      struct bnx2x_phy *phy)
13440 {
13441 	struct bnx2x *bp = params->bp;
13442 	int i;
13443 	static struct bnx2x_reg_set reg_set[] = {
13444 		/* Step 1 - Program the TX/RX alignment markers */
13445 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
13446 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
13447 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
13448 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
13449 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
13450 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
13451 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
13452 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
13453 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
13454 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
13455 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
13456 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
13457 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
13458 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
13459 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
13460 	};
13461 	DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
13462 
13463 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
13464 		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
13465 				 reg_set[i].val);
13466 	vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
13467 	bnx2x_update_link_attr(params, vars->link_attr_sync);
13468 
13469 	vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
13470 	/* Restart AN on leading lane */
13471 	bnx2x_warpcore_restart_AN_KR(phy, params);
13472 }
13473 
bnx2x_kr2_recovery(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)13474 static void bnx2x_kr2_recovery(struct link_params *params,
13475 			       struct link_vars *vars,
13476 			       struct bnx2x_phy *phy)
13477 {
13478 	struct bnx2x *bp = params->bp;
13479 	DP(NETIF_MSG_LINK, "KR2 recovery\n");
13480 	bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
13481 	bnx2x_warpcore_restart_AN_KR(phy, params);
13482 }
13483 
bnx2x_check_kr2_wa(struct link_params * params,struct link_vars * vars,struct bnx2x_phy * phy)13484 static void bnx2x_check_kr2_wa(struct link_params *params,
13485 			       struct link_vars *vars,
13486 			       struct bnx2x_phy *phy)
13487 {
13488 	struct bnx2x *bp = params->bp;
13489 	u16 base_page, next_page, not_kr2_device, lane;
13490 	int sigdet;
13491 
13492 	/* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery
13493 	 * Since some switches tend to reinit the AN process and clear the
13494 	 * the advertised BP/NP after ~2 seconds causing the KR2 to be disabled
13495 	 * and recovered many times
13496 	 */
13497 	if (vars->check_kr2_recovery_cnt > 0) {
13498 		vars->check_kr2_recovery_cnt--;
13499 		return;
13500 	}
13501 
13502 	sigdet = bnx2x_warpcore_get_sigdet(phy, params);
13503 	if (!sigdet) {
13504 		if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13505 			bnx2x_kr2_recovery(params, vars, phy);
13506 			DP(NETIF_MSG_LINK, "No sigdet\n");
13507 		}
13508 		return;
13509 	}
13510 
13511 	lane = bnx2x_get_warpcore_lane(phy, params);
13512 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
13513 			  MDIO_AER_BLOCK_AER_REG, lane);
13514 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
13515 			MDIO_AN_REG_LP_AUTO_NEG, &base_page);
13516 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
13517 			MDIO_AN_REG_LP_AUTO_NEG2, &next_page);
13518 	bnx2x_set_aer_mmd(params, phy);
13519 
13520 	/* CL73 has not begun yet */
13521 	if (base_page == 0) {
13522 		if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13523 			bnx2x_kr2_recovery(params, vars, phy);
13524 			DP(NETIF_MSG_LINK, "No BP\n");
13525 		}
13526 		return;
13527 	}
13528 
13529 	/* In case NP bit is not set in the BasePage, or it is set,
13530 	 * but only KX is advertised, declare this link partner as non-KR2
13531 	 * device.
13532 	 */
13533 	not_kr2_device = (((base_page & 0x8000) == 0) ||
13534 			  (((base_page & 0x8000) &&
13535 			    ((next_page & 0xe0) == 0x2))));
13536 
13537 	/* In case KR2 is already disabled, check if we need to re-enable it */
13538 	if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
13539 		if (!not_kr2_device) {
13540 			DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page,
13541 			   next_page);
13542 			bnx2x_kr2_recovery(params, vars, phy);
13543 		}
13544 		return;
13545 	}
13546 	/* KR2 is enabled, but not KR2 device */
13547 	if (not_kr2_device) {
13548 		/* Disable KR2 on both lanes */
13549 		DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page, next_page);
13550 		bnx2x_disable_kr2(params, vars, phy);
13551 		return;
13552 	}
13553 }
13554 
bnx2x_period_func(struct link_params * params,struct link_vars * vars)13555 void bnx2x_period_func(struct link_params *params, struct link_vars *vars)
13556 {
13557 	u16 phy_idx;
13558 	struct bnx2x *bp = params->bp;
13559 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
13560 		if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
13561 			bnx2x_set_aer_mmd(params, &params->phy[phy_idx]);
13562 			if (bnx2x_check_half_open_conn(params, vars, 1) !=
13563 			    0)
13564 				DP(NETIF_MSG_LINK, "Fault detection failed\n");
13565 			break;
13566 		}
13567 	}
13568 
13569 	if (CHIP_IS_E3(bp)) {
13570 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
13571 		bnx2x_set_aer_mmd(params, phy);
13572 		if ((phy->supported & SUPPORTED_20000baseKR2_Full) &&
13573 		    (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G))
13574 			bnx2x_check_kr2_wa(params, vars, phy);
13575 		bnx2x_check_over_curr(params, vars);
13576 		if (vars->rx_tx_asic_rst)
13577 			bnx2x_warpcore_config_runtime(phy, params, vars);
13578 
13579 		if ((REG_RD(bp, params->shmem_base +
13580 			    offsetof(struct shmem_region, dev_info.
13581 				port_hw_config[params->port].default_cfg))
13582 		    & PORT_HW_CFG_NET_SERDES_IF_MASK) ==
13583 		    PORT_HW_CFG_NET_SERDES_IF_SFI) {
13584 			if (bnx2x_is_sfp_module_plugged(phy, params)) {
13585 				bnx2x_sfp_tx_fault_detection(phy, params, vars);
13586 			} else if (vars->link_status &
13587 				LINK_STATUS_SFP_TX_FAULT) {
13588 				/* Clean trail, interrupt corrects the leds */
13589 				vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
13590 				vars->phy_flags &= ~PHY_SFP_TX_FAULT_FLAG;
13591 				/* Update link status in the shared memory */
13592 				bnx2x_update_mng(params, vars->link_status);
13593 			}
13594 		}
13595 	}
13596 }
13597 
bnx2x_fan_failure_det_req(struct bnx2x * bp,u32 shmem_base,u32 shmem2_base,u8 port)13598 u8 bnx2x_fan_failure_det_req(struct bnx2x *bp,
13599 			     u32 shmem_base,
13600 			     u32 shmem2_base,
13601 			     u8 port)
13602 {
13603 	u8 phy_index, fan_failure_det_req = 0;
13604 	struct bnx2x_phy phy;
13605 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
13606 	      phy_index++) {
13607 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
13608 				       port, &phy)
13609 		    != 0) {
13610 			DP(NETIF_MSG_LINK, "populate phy failed\n");
13611 			return 0;
13612 		}
13613 		fan_failure_det_req |= (phy.flags &
13614 					FLAGS_FAN_FAILURE_DET_REQ);
13615 	}
13616 	return fan_failure_det_req;
13617 }
13618 
bnx2x_hw_reset_phy(struct link_params * params)13619 void bnx2x_hw_reset_phy(struct link_params *params)
13620 {
13621 	u8 phy_index;
13622 	struct bnx2x *bp = params->bp;
13623 	bnx2x_update_mng(params, 0);
13624 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
13625 		       (NIG_MASK_XGXS0_LINK_STATUS |
13626 			NIG_MASK_XGXS0_LINK10G |
13627 			NIG_MASK_SERDES0_LINK_STATUS |
13628 			NIG_MASK_MI_INT));
13629 
13630 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
13631 	      phy_index++) {
13632 		if (params->phy[phy_index].hw_reset) {
13633 			params->phy[phy_index].hw_reset(
13634 				&params->phy[phy_index],
13635 				params);
13636 			params->phy[phy_index] = phy_null;
13637 		}
13638 	}
13639 }
13640 
bnx2x_init_mod_abs_int(struct bnx2x * bp,struct link_vars * vars,u32 chip_id,u32 shmem_base,u32 shmem2_base,u8 port)13641 void bnx2x_init_mod_abs_int(struct bnx2x *bp, struct link_vars *vars,
13642 			    u32 chip_id, u32 shmem_base, u32 shmem2_base,
13643 			    u8 port)
13644 {
13645 	u8 gpio_num = 0xff, gpio_port = 0xff, phy_index;
13646 	u32 val;
13647 	u32 offset, aeu_mask, swap_val, swap_override, sync_offset;
13648 	if (CHIP_IS_E3(bp)) {
13649 		if (bnx2x_get_mod_abs_int_cfg(bp, chip_id,
13650 					      shmem_base,
13651 					      port,
13652 					      &gpio_num,
13653 					      &gpio_port) != 0)
13654 			return;
13655 	} else {
13656 		struct bnx2x_phy phy;
13657 		for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
13658 		      phy_index++) {
13659 			if (bnx2x_populate_phy(bp, phy_index, shmem_base,
13660 					       shmem2_base, port, &phy)
13661 			    != 0) {
13662 				DP(NETIF_MSG_LINK, "populate phy failed\n");
13663 				return;
13664 			}
13665 			if (phy.type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) {
13666 				gpio_num = MISC_REGISTERS_GPIO_3;
13667 				gpio_port = port;
13668 				break;
13669 			}
13670 		}
13671 	}
13672 
13673 	if (gpio_num == 0xff)
13674 		return;
13675 
13676 	/* Set GPIO3 to trigger SFP+ module insertion/removal */
13677 	bnx2x_set_gpio(bp, gpio_num, MISC_REGISTERS_GPIO_INPUT_HI_Z, gpio_port);
13678 
13679 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
13680 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
13681 	gpio_port ^= (swap_val && swap_override);
13682 
13683 	vars->aeu_int_mask = AEU_INPUTS_ATTN_BITS_GPIO0_FUNCTION_0 <<
13684 		(gpio_num + (gpio_port << 2));
13685 
13686 	sync_offset = shmem_base +
13687 		offsetof(struct shmem_region,
13688 			 dev_info.port_hw_config[port].aeu_int_mask);
13689 	REG_WR(bp, sync_offset, vars->aeu_int_mask);
13690 
13691 	DP(NETIF_MSG_LINK, "Setting MOD_ABS (GPIO%d_P%d) AEU to 0x%x\n",
13692 		       gpio_num, gpio_port, vars->aeu_int_mask);
13693 
13694 	if (port == 0)
13695 		offset = MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0;
13696 	else
13697 		offset = MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0;
13698 
13699 	/* Open appropriate AEU for interrupts */
13700 	aeu_mask = REG_RD(bp, offset);
13701 	aeu_mask |= vars->aeu_int_mask;
13702 	REG_WR(bp, offset, aeu_mask);
13703 
13704 	/* Enable the GPIO to trigger interrupt */
13705 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
13706 	val |= 1 << (gpio_num + (gpio_port << 2));
13707 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
13708 }
13709