1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Atlantic Network Driver
3 *
4 * Copyright (C) 2014-2019 aQuantia Corporation
5 * Copyright (C) 2019-2020 Marvell International Ltd.
6 */
7
8 /* File hw_atl_utils_fw2x.c: Definition of firmware 2.x functions for
9 * Atlantic hardware abstraction layer.
10 */
11
12 #include "../aq_hw.h"
13 #include "../aq_hw_utils.h"
14 #include "../aq_pci_func.h"
15 #include "../aq_ring.h"
16 #include "../aq_vec.h"
17 #include "../aq_nic.h"
18 #include "hw_atl_utils.h"
19 #include "hw_atl_llh.h"
20
21 #define HW_ATL_FW2X_MPI_LED_ADDR 0x31c
22 #define HW_ATL_FW2X_MPI_RPC_ADDR 0x334
23
24 #define HW_ATL_FW2X_MPI_MBOX_ADDR 0x360
25 #define HW_ATL_FW2X_MPI_EFUSE_ADDR 0x364
26 #define HW_ATL_FW2X_MPI_CONTROL_ADDR 0x368
27 #define HW_ATL_FW2X_MPI_CONTROL2_ADDR 0x36C
28 #define HW_ATL_FW2X_MPI_STATE_ADDR 0x370
29 #define HW_ATL_FW2X_MPI_STATE2_ADDR 0x374
30
31 #define HW_ATL_FW3X_EXT_CONTROL_ADDR 0x378
32 #define HW_ATL_FW3X_EXT_STATE_ADDR 0x37c
33
34 #define HW_ATL_FW3X_PTP_ADJ_LSW_ADDR 0x50a0
35 #define HW_ATL_FW3X_PTP_ADJ_MSW_ADDR 0x50a4
36
37 #define HW_ATL_FW2X_CAP_PAUSE BIT(CAPS_HI_PAUSE)
38 #define HW_ATL_FW2X_CAP_ASYM_PAUSE BIT(CAPS_HI_ASYMMETRIC_PAUSE)
39 #define HW_ATL_FW2X_CAP_SLEEP_PROXY BIT(CAPS_HI_SLEEP_PROXY)
40 #define HW_ATL_FW2X_CAP_WOL BIT(CAPS_HI_WOL)
41
42 #define HW_ATL_FW2X_CTRL_WAKE_ON_LINK BIT(CTRL_WAKE_ON_LINK)
43 #define HW_ATL_FW2X_CTRL_SLEEP_PROXY BIT(CTRL_SLEEP_PROXY)
44 #define HW_ATL_FW2X_CTRL_WOL BIT(CTRL_WOL)
45 #define HW_ATL_FW2X_CTRL_LINK_DROP BIT(CTRL_LINK_DROP)
46 #define HW_ATL_FW2X_CTRL_PAUSE BIT(CTRL_PAUSE)
47 #define HW_ATL_FW2X_CTRL_TEMPERATURE BIT(CTRL_TEMPERATURE)
48 #define HW_ATL_FW2X_CTRL_ASYMMETRIC_PAUSE BIT(CTRL_ASYMMETRIC_PAUSE)
49 #define HW_ATL_FW2X_CTRL_INT_LOOPBACK BIT(CTRL_INT_LOOPBACK)
50 #define HW_ATL_FW2X_CTRL_EXT_LOOPBACK BIT(CTRL_EXT_LOOPBACK)
51 #define HW_ATL_FW2X_CTRL_DOWNSHIFT BIT(CTRL_DOWNSHIFT)
52 #define HW_ATL_FW2X_CTRL_FORCE_RECONNECT BIT(CTRL_FORCE_RECONNECT)
53
54 #define HW_ATL_FW2X_CAP_EEE_1G_MASK BIT(CAPS_HI_1000BASET_FD_EEE)
55 #define HW_ATL_FW2X_CAP_EEE_2G5_MASK BIT(CAPS_HI_2P5GBASET_FD_EEE)
56 #define HW_ATL_FW2X_CAP_EEE_5G_MASK BIT(CAPS_HI_5GBASET_FD_EEE)
57 #define HW_ATL_FW2X_CAP_EEE_10G_MASK BIT(CAPS_HI_10GBASET_FD_EEE)
58
59 #define HW_ATL_FW2X_CAP_MACSEC BIT(CAPS_LO_MACSEC)
60
61 #define HAL_ATLANTIC_WOL_FILTERS_COUNT 8
62 #define HAL_ATLANTIC_UTILS_FW2X_MSG_WOL 0x0E
63
64 #define HW_ATL_FW_VER_LED 0x03010026U
65 #define HW_ATL_FW_VER_MEDIA_CONTROL 0x0301005aU
66
67 struct __packed fw2x_msg_wol_pattern {
68 u8 mask[16];
69 u32 crc;
70 };
71
72 struct __packed fw2x_msg_wol {
73 u32 msg_id;
74 u8 hw_addr[ETH_ALEN];
75 u8 magic_packet_enabled;
76 u8 filter_count;
77 struct fw2x_msg_wol_pattern filter[HAL_ATLANTIC_WOL_FILTERS_COUNT];
78 u8 link_up_enabled;
79 u8 link_down_enabled;
80 u16 reserved;
81 u32 link_up_timeout;
82 u32 link_down_timeout;
83 };
84
85 static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed);
86 static int aq_fw2x_set_state(struct aq_hw_s *self,
87 enum hal_atl_utils_fw_state_e state);
88
89 static u32 aq_fw2x_mbox_get(struct aq_hw_s *self);
90 static u32 aq_fw2x_rpc_get(struct aq_hw_s *self);
91 static int aq_fw2x_settings_get(struct aq_hw_s *self, u32 *addr);
92 static u32 aq_fw2x_state_get(struct aq_hw_s *self);
93 static u32 aq_fw2x_state2_get(struct aq_hw_s *self);
94
aq_fw2x_init(struct aq_hw_s * self)95 static int aq_fw2x_init(struct aq_hw_s *self)
96 {
97 int err = 0;
98
99 /* check 10 times by 1ms */
100 err = readx_poll_timeout_atomic(aq_fw2x_mbox_get,
101 self, self->mbox_addr,
102 self->mbox_addr != 0U,
103 1000U, 10000U);
104
105 err = readx_poll_timeout_atomic(aq_fw2x_rpc_get,
106 self, self->rpc_addr,
107 self->rpc_addr != 0U,
108 1000U, 100000U);
109
110 err = aq_fw2x_settings_get(self, &self->settings_addr);
111
112 return err;
113 }
114
aq_fw2x_deinit(struct aq_hw_s * self)115 static int aq_fw2x_deinit(struct aq_hw_s *self)
116 {
117 int err = aq_fw2x_set_link_speed(self, 0);
118
119 if (!err)
120 err = aq_fw2x_set_state(self, MPI_DEINIT);
121
122 return err;
123 }
124
link_speed_mask_2fw2x_ratemask(u32 speed)125 static enum hw_atl_fw2x_rate link_speed_mask_2fw2x_ratemask(u32 speed)
126 {
127 enum hw_atl_fw2x_rate rate = 0;
128
129 if (speed & AQ_NIC_RATE_10G)
130 rate |= FW2X_RATE_10G;
131
132 if (speed & AQ_NIC_RATE_5G)
133 rate |= FW2X_RATE_5G;
134
135 if (speed & AQ_NIC_RATE_2G5)
136 rate |= FW2X_RATE_2G5;
137
138 if (speed & AQ_NIC_RATE_1G)
139 rate |= FW2X_RATE_1G;
140
141 if (speed & AQ_NIC_RATE_100M)
142 rate |= FW2X_RATE_100M;
143
144 return rate;
145 }
146
fw2x_to_eee_mask(u32 speed)147 static u32 fw2x_to_eee_mask(u32 speed)
148 {
149 u32 rate = 0;
150
151 if (speed & HW_ATL_FW2X_CAP_EEE_10G_MASK)
152 rate |= AQ_NIC_RATE_EEE_10G;
153 if (speed & HW_ATL_FW2X_CAP_EEE_5G_MASK)
154 rate |= AQ_NIC_RATE_EEE_5G;
155 if (speed & HW_ATL_FW2X_CAP_EEE_2G5_MASK)
156 rate |= AQ_NIC_RATE_EEE_2G5;
157 if (speed & HW_ATL_FW2X_CAP_EEE_1G_MASK)
158 rate |= AQ_NIC_RATE_EEE_1G;
159
160 return rate;
161 }
162
eee_mask_to_fw2x(u32 speed)163 static u32 eee_mask_to_fw2x(u32 speed)
164 {
165 u32 rate = 0;
166
167 if (speed & AQ_NIC_RATE_EEE_10G)
168 rate |= HW_ATL_FW2X_CAP_EEE_10G_MASK;
169 if (speed & AQ_NIC_RATE_EEE_5G)
170 rate |= HW_ATL_FW2X_CAP_EEE_5G_MASK;
171 if (speed & AQ_NIC_RATE_EEE_2G5)
172 rate |= HW_ATL_FW2X_CAP_EEE_2G5_MASK;
173 if (speed & AQ_NIC_RATE_EEE_1G)
174 rate |= HW_ATL_FW2X_CAP_EEE_1G_MASK;
175
176 return rate;
177 }
178
aq_fw2x_set_link_speed(struct aq_hw_s * self,u32 speed)179 static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed)
180 {
181 u32 val = link_speed_mask_2fw2x_ratemask(speed);
182
183 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL_ADDR, val);
184
185 return 0;
186 }
187
aq_fw2x_upd_flow_control_bits(struct aq_hw_s * self,u32 * mpi_state,u32 fc)188 static void aq_fw2x_upd_flow_control_bits(struct aq_hw_s *self,
189 u32 *mpi_state, u32 fc)
190 {
191 *mpi_state &= ~(HW_ATL_FW2X_CTRL_PAUSE |
192 HW_ATL_FW2X_CTRL_ASYMMETRIC_PAUSE);
193
194 switch (fc) {
195 /* There is not explicit mode of RX only pause frames,
196 * thus, we join this mode with FC full.
197 * FC full is either Rx, either Tx, or both.
198 */
199 case AQ_NIC_FC_FULL:
200 case AQ_NIC_FC_RX:
201 *mpi_state |= HW_ATL_FW2X_CTRL_PAUSE |
202 HW_ATL_FW2X_CTRL_ASYMMETRIC_PAUSE;
203 break;
204 case AQ_NIC_FC_TX:
205 *mpi_state |= HW_ATL_FW2X_CTRL_ASYMMETRIC_PAUSE;
206 break;
207 }
208 }
209
aq_fw2x_upd_eee_rate_bits(struct aq_hw_s * self,u32 * mpi_opts,u32 eee_speeds)210 static void aq_fw2x_upd_eee_rate_bits(struct aq_hw_s *self, u32 *mpi_opts,
211 u32 eee_speeds)
212 {
213 *mpi_opts &= ~(HW_ATL_FW2X_CAP_EEE_1G_MASK |
214 HW_ATL_FW2X_CAP_EEE_2G5_MASK |
215 HW_ATL_FW2X_CAP_EEE_5G_MASK |
216 HW_ATL_FW2X_CAP_EEE_10G_MASK);
217
218 *mpi_opts |= eee_mask_to_fw2x(eee_speeds);
219 }
220
aq_fw2x_set_state(struct aq_hw_s * self,enum hal_atl_utils_fw_state_e state)221 static int aq_fw2x_set_state(struct aq_hw_s *self,
222 enum hal_atl_utils_fw_state_e state)
223 {
224 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
225 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
226
227 switch (state) {
228 case MPI_INIT:
229 mpi_state &= ~BIT(CAPS_HI_LINK_DROP);
230 aq_fw2x_upd_eee_rate_bits(self, &mpi_state, cfg->eee_speeds);
231 aq_fw2x_upd_flow_control_bits(self, &mpi_state,
232 self->aq_nic_cfg->fc.req);
233 break;
234 case MPI_DEINIT:
235 mpi_state |= BIT(CAPS_HI_LINK_DROP);
236 break;
237 case MPI_RESET:
238 case MPI_POWER:
239 /* No actions */
240 break;
241 }
242 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_state);
243
244 return 0;
245 }
246
aq_fw2x_update_link_status(struct aq_hw_s * self)247 static int aq_fw2x_update_link_status(struct aq_hw_s *self)
248 {
249 struct aq_hw_link_status_s *link_status = &self->aq_link_status;
250 u32 mpi_state;
251 u32 speed;
252
253 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE_ADDR);
254 speed = mpi_state & (FW2X_RATE_100M | FW2X_RATE_1G |
255 FW2X_RATE_2G5 | FW2X_RATE_5G |
256 FW2X_RATE_10G);
257
258 if (speed) {
259 if (speed & FW2X_RATE_10G)
260 link_status->mbps = 10000;
261 else if (speed & FW2X_RATE_5G)
262 link_status->mbps = 5000;
263 else if (speed & FW2X_RATE_2G5)
264 link_status->mbps = 2500;
265 else if (speed & FW2X_RATE_1G)
266 link_status->mbps = 1000;
267 else if (speed & FW2X_RATE_100M)
268 link_status->mbps = 100;
269 else
270 link_status->mbps = 10000;
271 } else {
272 link_status->mbps = 0;
273 }
274 link_status->full_duplex = true;
275
276 return 0;
277 }
278
aq_fw2x_get_mac_permanent(struct aq_hw_s * self,u8 * mac)279 static int aq_fw2x_get_mac_permanent(struct aq_hw_s *self, u8 *mac)
280 {
281 u32 efuse_addr = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_EFUSE_ADDR);
282 u32 mac_addr[2] = { 0 };
283 int err = 0;
284
285 if (efuse_addr != 0) {
286 err = hw_atl_utils_fw_downld_dwords(self,
287 efuse_addr + (40U * 4U),
288 mac_addr,
289 ARRAY_SIZE(mac_addr));
290 if (err)
291 return err;
292 mac_addr[0] = __swab32(mac_addr[0]);
293 mac_addr[1] = __swab32(mac_addr[1]);
294 }
295
296 ether_addr_copy(mac, (u8 *)mac_addr);
297
298 return err;
299 }
300
aq_fw2x_update_stats(struct aq_hw_s * self)301 static int aq_fw2x_update_stats(struct aq_hw_s *self)
302 {
303 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
304 u32 orig_stats_val = mpi_opts & BIT(CAPS_HI_STATISTICS);
305 u32 stats_val;
306 int err = 0;
307
308 /* Toggle statistics bit for FW to update */
309 mpi_opts = mpi_opts ^ BIT(CAPS_HI_STATISTICS);
310 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
311
312 /* Wait FW to report back */
313 err = readx_poll_timeout_atomic(aq_fw2x_state2_get,
314 self, stats_val,
315 orig_stats_val != (stats_val &
316 BIT(CAPS_HI_STATISTICS)),
317 1U, 10000U);
318 if (err)
319 return err;
320
321 return hw_atl_utils_update_stats(self);
322 }
323
aq_fw2x_get_phy_temp(struct aq_hw_s * self,int * temp)324 static int aq_fw2x_get_phy_temp(struct aq_hw_s *self, int *temp)
325 {
326 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
327 u32 temp_val = mpi_opts & HW_ATL_FW2X_CTRL_TEMPERATURE;
328 u32 phy_temp_offset;
329 u32 temp_res;
330 int err = 0;
331 u32 val;
332
333 phy_temp_offset = self->mbox_addr + offsetof(struct hw_atl_utils_mbox,
334 info.phy_temperature);
335
336 /* Toggle statistics bit for FW to 0x36C.18 (CTRL_TEMPERATURE) */
337 mpi_opts = mpi_opts ^ HW_ATL_FW2X_CTRL_TEMPERATURE;
338 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
339 /* Wait FW to report back */
340 err = readx_poll_timeout_atomic(aq_fw2x_state2_get, self, val,
341 temp_val !=
342 (val & HW_ATL_FW2X_CTRL_TEMPERATURE),
343 1U, 10000U);
344 err = hw_atl_utils_fw_downld_dwords(self, phy_temp_offset,
345 &temp_res, 1);
346
347 if (err)
348 return err;
349
350 /* Convert PHY temperature from 1/256 degree Celsius
351 * to 1/1000 degree Celsius.
352 */
353 *temp = (int16_t)(temp_res & 0xFFFF) * 1000 / 256;
354
355 return 0;
356 }
357
aq_fw2x_set_wol(struct aq_hw_s * self,u8 * mac)358 static int aq_fw2x_set_wol(struct aq_hw_s *self, u8 *mac)
359 {
360 struct hw_atl_utils_fw_rpc *rpc = NULL;
361 struct offload_info *info = NULL;
362 u32 wol_bits = 0;
363 u32 rpc_size;
364 int err = 0;
365 u32 val;
366
367 if (self->aq_nic_cfg->wol & WAKE_PHY) {
368 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR,
369 HW_ATL_FW2X_CTRL_LINK_DROP);
370 readx_poll_timeout_atomic(aq_fw2x_state2_get, self, val,
371 (val &
372 HW_ATL_FW2X_CTRL_LINK_DROP) != 0,
373 1000, 100000);
374 wol_bits |= HW_ATL_FW2X_CTRL_WAKE_ON_LINK;
375 }
376
377 if (self->aq_nic_cfg->wol & WAKE_MAGIC) {
378 wol_bits |= HW_ATL_FW2X_CTRL_SLEEP_PROXY |
379 HW_ATL_FW2X_CTRL_WOL;
380
381 err = hw_atl_utils_fw_rpc_wait(self, &rpc);
382 if (err < 0)
383 goto err_exit;
384
385 rpc_size = sizeof(*info) +
386 offsetof(struct hw_atl_utils_fw_rpc, fw2x_offloads);
387 memset(rpc, 0, rpc_size);
388 info = &rpc->fw2x_offloads;
389 memcpy(info->mac_addr, mac, ETH_ALEN);
390 info->len = sizeof(*info);
391
392 err = hw_atl_utils_fw_rpc_call(self, rpc_size);
393 if (err < 0)
394 goto err_exit;
395 }
396
397 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, wol_bits);
398
399 err_exit:
400 return err;
401 }
402
aq_fw2x_set_power(struct aq_hw_s * self,unsigned int power_state,u8 * mac)403 static int aq_fw2x_set_power(struct aq_hw_s *self, unsigned int power_state,
404 u8 *mac)
405 {
406 int err = 0;
407
408 if (self->aq_nic_cfg->wol)
409 err = aq_fw2x_set_wol(self, mac);
410
411 return err;
412 }
413
aq_fw2x_send_fw_request(struct aq_hw_s * self,const struct hw_fw_request_iface * fw_req,size_t size)414 static int aq_fw2x_send_fw_request(struct aq_hw_s *self,
415 const struct hw_fw_request_iface *fw_req,
416 size_t size)
417 {
418 u32 ctrl2, orig_ctrl2;
419 u32 dword_cnt;
420 int err = 0;
421 u32 val;
422
423 /* Write data to drvIface Mailbox */
424 dword_cnt = size / sizeof(u32);
425 if (size % sizeof(u32))
426 dword_cnt++;
427 err = hw_atl_write_fwcfg_dwords(self, (void *)fw_req, dword_cnt);
428 if (err < 0)
429 goto err_exit;
430
431 /* Toggle statistics bit for FW to update */
432 ctrl2 = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
433 orig_ctrl2 = ctrl2 & BIT(CAPS_HI_FW_REQUEST);
434 ctrl2 = ctrl2 ^ BIT(CAPS_HI_FW_REQUEST);
435 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, ctrl2);
436
437 /* Wait FW to report back */
438 err = readx_poll_timeout_atomic(aq_fw2x_state2_get, self, val,
439 orig_ctrl2 != (val &
440 BIT(CAPS_HI_FW_REQUEST)),
441 1U, 10000U);
442
443 err_exit:
444 return err;
445 }
446
aq_fw3x_enable_ptp(struct aq_hw_s * self,int enable)447 static void aq_fw3x_enable_ptp(struct aq_hw_s *self, int enable)
448 {
449 u32 ptp_opts = aq_hw_read_reg(self, HW_ATL_FW3X_EXT_STATE_ADDR);
450 u32 all_ptp_features = BIT(CAPS_EX_PHY_PTP_EN) |
451 BIT(CAPS_EX_PTP_GPIO_EN);
452
453 if (enable)
454 ptp_opts |= all_ptp_features;
455 else
456 ptp_opts &= ~all_ptp_features;
457
458 aq_hw_write_reg(self, HW_ATL_FW3X_EXT_CONTROL_ADDR, ptp_opts);
459 }
460
aq_fw3x_adjust_ptp(struct aq_hw_s * self,uint64_t adj)461 static void aq_fw3x_adjust_ptp(struct aq_hw_s *self, uint64_t adj)
462 {
463 aq_hw_write_reg(self, HW_ATL_FW3X_PTP_ADJ_LSW_ADDR,
464 (adj >> 0) & 0xffffffff);
465 aq_hw_write_reg(self, HW_ATL_FW3X_PTP_ADJ_MSW_ADDR,
466 (adj >> 32) & 0xffffffff);
467 }
468
aq_fw2x_led_control(struct aq_hw_s * self,u32 mode)469 static int aq_fw2x_led_control(struct aq_hw_s *self, u32 mode)
470 {
471 if (self->fw_ver_actual < HW_ATL_FW_VER_LED)
472 return -EOPNOTSUPP;
473
474 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_LED_ADDR, mode);
475
476 return 0;
477 }
478
aq_fw2x_set_eee_rate(struct aq_hw_s * self,u32 speed)479 static int aq_fw2x_set_eee_rate(struct aq_hw_s *self, u32 speed)
480 {
481 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
482
483 aq_fw2x_upd_eee_rate_bits(self, &mpi_opts, speed);
484
485 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
486
487 return 0;
488 }
489
aq_fw2x_get_eee_rate(struct aq_hw_s * self,u32 * rate,u32 * supported_rates)490 static int aq_fw2x_get_eee_rate(struct aq_hw_s *self, u32 *rate,
491 u32 *supported_rates)
492 {
493 u32 mpi_state;
494 u32 caps_hi;
495 int err = 0;
496 u32 offset;
497
498 offset = self->mbox_addr + offsetof(struct hw_atl_utils_mbox,
499 info.caps_hi);
500
501 err = hw_atl_utils_fw_downld_dwords(self, offset, &caps_hi, 1);
502
503 if (err)
504 return err;
505
506 *supported_rates = fw2x_to_eee_mask(caps_hi);
507
508 mpi_state = aq_fw2x_state2_get(self);
509 *rate = fw2x_to_eee_mask(mpi_state);
510
511 return err;
512 }
513
aq_fw2x_renegotiate(struct aq_hw_s * self)514 static int aq_fw2x_renegotiate(struct aq_hw_s *self)
515 {
516 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
517
518 mpi_opts |= BIT(CTRL_FORCE_RECONNECT);
519
520 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
521
522 return 0;
523 }
524
aq_fw2x_set_flow_control(struct aq_hw_s * self)525 static int aq_fw2x_set_flow_control(struct aq_hw_s *self)
526 {
527 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
528
529 aq_fw2x_upd_flow_control_bits(self, &mpi_state,
530 self->aq_nic_cfg->fc.req);
531
532 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_state);
533
534 return 0;
535 }
536
aq_fw2x_get_flow_control(struct aq_hw_s * self,u32 * fcmode)537 static u32 aq_fw2x_get_flow_control(struct aq_hw_s *self, u32 *fcmode)
538 {
539 u32 mpi_state = aq_fw2x_state2_get(self);
540 *fcmode = 0;
541
542 if (mpi_state & HW_ATL_FW2X_CAP_PAUSE)
543 *fcmode |= AQ_NIC_FC_RX;
544
545 if (mpi_state & HW_ATL_FW2X_CAP_ASYM_PAUSE)
546 *fcmode |= AQ_NIC_FC_TX;
547
548 return 0;
549 }
550
aq_fw2x_set_phyloopback(struct aq_hw_s * self,u32 mode,bool enable)551 static int aq_fw2x_set_phyloopback(struct aq_hw_s *self, u32 mode, bool enable)
552 {
553 u32 mpi_opts;
554
555 switch (mode) {
556 case AQ_HW_LOOPBACK_PHYINT_SYS:
557 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
558 if (enable)
559 mpi_opts |= HW_ATL_FW2X_CTRL_INT_LOOPBACK;
560 else
561 mpi_opts &= ~HW_ATL_FW2X_CTRL_INT_LOOPBACK;
562 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
563 break;
564 case AQ_HW_LOOPBACK_PHYEXT_SYS:
565 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
566 if (enable)
567 mpi_opts |= HW_ATL_FW2X_CTRL_EXT_LOOPBACK;
568 else
569 mpi_opts &= ~HW_ATL_FW2X_CTRL_EXT_LOOPBACK;
570 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
571 break;
572 default:
573 return -EINVAL;
574 }
575
576 return 0;
577 }
578
aq_fw2x_mbox_get(struct aq_hw_s * self)579 static u32 aq_fw2x_mbox_get(struct aq_hw_s *self)
580 {
581 return aq_hw_read_reg(self, HW_ATL_FW2X_MPI_MBOX_ADDR);
582 }
583
aq_fw2x_rpc_get(struct aq_hw_s * self)584 static u32 aq_fw2x_rpc_get(struct aq_hw_s *self)
585 {
586 return aq_hw_read_reg(self, HW_ATL_FW2X_MPI_RPC_ADDR);
587 }
588
aq_fw2x_settings_get(struct aq_hw_s * self,u32 * addr)589 static int aq_fw2x_settings_get(struct aq_hw_s *self, u32 *addr)
590 {
591 int err = 0;
592 u32 offset;
593
594 offset = self->mbox_addr + offsetof(struct hw_atl_utils_mbox,
595 info.setting_address);
596
597 err = hw_atl_utils_fw_downld_dwords(self, offset, addr, 1);
598
599 return err;
600 }
601
aq_fw2x_state_get(struct aq_hw_s * self)602 static u32 aq_fw2x_state_get(struct aq_hw_s *self)
603 {
604 return aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE_ADDR);
605 }
606
aq_fw2x_state2_get(struct aq_hw_s * self)607 static u32 aq_fw2x_state2_get(struct aq_hw_s *self)
608 {
609 return aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR);
610 }
611
aq_fw2x_set_downshift(struct aq_hw_s * self,u32 counter)612 static int aq_fw2x_set_downshift(struct aq_hw_s *self, u32 counter)
613 {
614 int err = 0;
615 u32 mpi_opts;
616 u32 offset;
617
618 offset = offsetof(struct hw_atl_utils_settings, downshift_retry_count);
619 err = hw_atl_write_fwsettings_dwords(self, offset, &counter, 1);
620 if (err)
621 return err;
622
623 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
624 if (counter)
625 mpi_opts |= HW_ATL_FW2X_CTRL_DOWNSHIFT;
626 else
627 mpi_opts &= ~HW_ATL_FW2X_CTRL_DOWNSHIFT;
628 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
629
630 return err;
631 }
632
aq_fw2x_set_media_detect(struct aq_hw_s * self,bool on)633 static int aq_fw2x_set_media_detect(struct aq_hw_s *self, bool on)
634 {
635 u32 enable;
636 u32 offset;
637
638 if (self->fw_ver_actual < HW_ATL_FW_VER_MEDIA_CONTROL)
639 return -EOPNOTSUPP;
640
641 offset = offsetof(struct hw_atl_utils_settings, media_detect);
642 enable = on;
643
644 return hw_atl_write_fwsettings_dwords(self, offset, &enable, 1);
645 }
646
aq_fw2x_get_link_capabilities(struct aq_hw_s * self)647 static u32 aq_fw2x_get_link_capabilities(struct aq_hw_s *self)
648 {
649 int err = 0;
650 u32 offset;
651 u32 val;
652
653 offset = self->mbox_addr +
654 offsetof(struct hw_atl_utils_mbox, info.caps_lo);
655
656 err = hw_atl_utils_fw_downld_dwords(self, offset, &val, 1);
657
658 if (err)
659 return 0;
660
661 return val;
662 }
663
aq_fw2x_send_macsec_req(struct aq_hw_s * hw,struct macsec_msg_fw_request * req,struct macsec_msg_fw_response * response)664 static int aq_fw2x_send_macsec_req(struct aq_hw_s *hw,
665 struct macsec_msg_fw_request *req,
666 struct macsec_msg_fw_response *response)
667 {
668 u32 low_status, low_req = 0;
669 u32 dword_cnt;
670 u32 caps_lo;
671 u32 offset;
672 int err;
673
674 if (!req || !response)
675 return -EINVAL;
676
677 caps_lo = aq_fw2x_get_link_capabilities(hw);
678 if (!(caps_lo & BIT(CAPS_LO_MACSEC)))
679 return -EOPNOTSUPP;
680
681 /* Write macsec request to cfg memory */
682 dword_cnt = (sizeof(*req) + sizeof(u32) - 1) / sizeof(u32);
683 err = hw_atl_write_fwcfg_dwords(hw, (void *)req, dword_cnt);
684 if (err < 0)
685 return err;
686
687 /* Toggle 0x368.CAPS_LO_MACSEC bit */
688 low_req = aq_hw_read_reg(hw, HW_ATL_FW2X_MPI_CONTROL_ADDR);
689 low_req ^= HW_ATL_FW2X_CAP_MACSEC;
690 aq_hw_write_reg(hw, HW_ATL_FW2X_MPI_CONTROL_ADDR, low_req);
691
692 /* Wait FW to report back */
693 err = readx_poll_timeout_atomic(aq_fw2x_state_get, hw, low_status,
694 low_req != (low_status & BIT(CAPS_LO_MACSEC)), 1U, 10000U);
695 if (err)
696 return -EIO;
697
698 /* Read status of write operation */
699 offset = hw->rpc_addr + sizeof(u32);
700 err = hw_atl_utils_fw_downld_dwords(hw, offset, (u32 *)(void *)response,
701 sizeof(*response) / sizeof(u32));
702
703 return err;
704 }
705
706 const struct aq_fw_ops aq_fw_2x_ops = {
707 .init = aq_fw2x_init,
708 .deinit = aq_fw2x_deinit,
709 .reset = NULL,
710 .renegotiate = aq_fw2x_renegotiate,
711 .get_mac_permanent = aq_fw2x_get_mac_permanent,
712 .set_link_speed = aq_fw2x_set_link_speed,
713 .set_state = aq_fw2x_set_state,
714 .update_link_status = aq_fw2x_update_link_status,
715 .update_stats = aq_fw2x_update_stats,
716 .get_mac_temp = NULL,
717 .get_phy_temp = aq_fw2x_get_phy_temp,
718 .set_power = aq_fw2x_set_power,
719 .set_eee_rate = aq_fw2x_set_eee_rate,
720 .get_eee_rate = aq_fw2x_get_eee_rate,
721 .set_flow_control = aq_fw2x_set_flow_control,
722 .get_flow_control = aq_fw2x_get_flow_control,
723 .send_fw_request = aq_fw2x_send_fw_request,
724 .enable_ptp = aq_fw3x_enable_ptp,
725 .led_control = aq_fw2x_led_control,
726 .set_phyloopback = aq_fw2x_set_phyloopback,
727 .set_downshift = aq_fw2x_set_downshift,
728 .set_media_detect = aq_fw2x_set_media_detect,
729 .adjust_ptp = aq_fw3x_adjust_ptp,
730 .get_link_capabilities = aq_fw2x_get_link_capabilities,
731 .send_macsec_req = aq_fw2x_send_macsec_req,
732 };
733