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1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015-2017  QLogic Corporation
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and /or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #include <linux/types.h>
34 #include <asm/byteorder.h>
35 #include <linux/io.h>
36 #include <linux/delay.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/errno.h>
39 #include <linux/kernel.h>
40 #include <linux/mutex.h>
41 #include <linux/pci.h>
42 #include <linux/slab.h>
43 #include <linux/string.h>
44 #include <linux/vmalloc.h>
45 #include <linux/etherdevice.h>
46 #include <linux/qed/qed_chain.h>
47 #include <linux/qed/qed_if.h>
48 #include "qed.h"
49 #include "qed_cxt.h"
50 #include "qed_dcbx.h"
51 #include "qed_dev_api.h"
52 #include "qed_fcoe.h"
53 #include "qed_hsi.h"
54 #include "qed_hw.h"
55 #include "qed_init_ops.h"
56 #include "qed_int.h"
57 #include "qed_iscsi.h"
58 #include "qed_ll2.h"
59 #include "qed_mcp.h"
60 #include "qed_ooo.h"
61 #include "qed_reg_addr.h"
62 #include "qed_sp.h"
63 #include "qed_sriov.h"
64 #include "qed_vf.h"
65 #include "qed_rdma.h"
66 
67 static DEFINE_SPINLOCK(qm_lock);
68 
69 #define QED_MIN_DPIS            (4)
70 #define QED_MIN_PWM_REGION      (QED_WID_SIZE * QED_MIN_DPIS)
71 
qed_hw_bar_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum BAR_ID bar_id)72 static u32 qed_hw_bar_size(struct qed_hwfn *p_hwfn,
73 			   struct qed_ptt *p_ptt, enum BAR_ID bar_id)
74 {
75 	u32 bar_reg = (bar_id == BAR_ID_0 ?
76 		       PGLUE_B_REG_PF_BAR0_SIZE : PGLUE_B_REG_PF_BAR1_SIZE);
77 	u32 val;
78 
79 	if (IS_VF(p_hwfn->cdev))
80 		return qed_vf_hw_bar_size(p_hwfn, bar_id);
81 
82 	val = qed_rd(p_hwfn, p_ptt, bar_reg);
83 	if (val)
84 		return 1 << (val + 15);
85 
86 	/* Old MFW initialized above registered only conditionally */
87 	if (p_hwfn->cdev->num_hwfns > 1) {
88 		DP_INFO(p_hwfn,
89 			"BAR size not configured. Assuming BAR size of 256kB for GRC and 512kB for DB\n");
90 			return BAR_ID_0 ? 256 * 1024 : 512 * 1024;
91 	} else {
92 		DP_INFO(p_hwfn,
93 			"BAR size not configured. Assuming BAR size of 512kB for GRC and 512kB for DB\n");
94 			return 512 * 1024;
95 	}
96 }
97 
qed_init_dp(struct qed_dev * cdev,u32 dp_module,u8 dp_level)98 void qed_init_dp(struct qed_dev *cdev, u32 dp_module, u8 dp_level)
99 {
100 	u32 i;
101 
102 	cdev->dp_level = dp_level;
103 	cdev->dp_module = dp_module;
104 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
105 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
106 
107 		p_hwfn->dp_level = dp_level;
108 		p_hwfn->dp_module = dp_module;
109 	}
110 }
111 
qed_init_struct(struct qed_dev * cdev)112 void qed_init_struct(struct qed_dev *cdev)
113 {
114 	u8 i;
115 
116 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
117 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
118 
119 		p_hwfn->cdev = cdev;
120 		p_hwfn->my_id = i;
121 		p_hwfn->b_active = false;
122 
123 		mutex_init(&p_hwfn->dmae_info.mutex);
124 	}
125 
126 	/* hwfn 0 is always active */
127 	cdev->hwfns[0].b_active = true;
128 
129 	/* set the default cache alignment to 128 */
130 	cdev->cache_shift = 7;
131 }
132 
qed_qm_info_free(struct qed_hwfn * p_hwfn)133 static void qed_qm_info_free(struct qed_hwfn *p_hwfn)
134 {
135 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
136 
137 	kfree(qm_info->qm_pq_params);
138 	qm_info->qm_pq_params = NULL;
139 	kfree(qm_info->qm_vport_params);
140 	qm_info->qm_vport_params = NULL;
141 	kfree(qm_info->qm_port_params);
142 	qm_info->qm_port_params = NULL;
143 	kfree(qm_info->wfq_data);
144 	qm_info->wfq_data = NULL;
145 }
146 
qed_resc_free(struct qed_dev * cdev)147 void qed_resc_free(struct qed_dev *cdev)
148 {
149 	int i;
150 
151 	if (IS_VF(cdev)) {
152 		for_each_hwfn(cdev, i)
153 			qed_l2_free(&cdev->hwfns[i]);
154 		return;
155 	}
156 
157 	kfree(cdev->fw_data);
158 	cdev->fw_data = NULL;
159 
160 	kfree(cdev->reset_stats);
161 	cdev->reset_stats = NULL;
162 
163 	for_each_hwfn(cdev, i) {
164 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
165 
166 		qed_cxt_mngr_free(p_hwfn);
167 		qed_qm_info_free(p_hwfn);
168 		qed_spq_free(p_hwfn);
169 		qed_eq_free(p_hwfn);
170 		qed_consq_free(p_hwfn);
171 		qed_int_free(p_hwfn);
172 #ifdef CONFIG_QED_LL2
173 		qed_ll2_free(p_hwfn);
174 #endif
175 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
176 			qed_fcoe_free(p_hwfn);
177 
178 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
179 			qed_iscsi_free(p_hwfn);
180 			qed_ooo_free(p_hwfn);
181 		}
182 
183 		if (QED_IS_RDMA_PERSONALITY(p_hwfn))
184 			qed_rdma_info_free(p_hwfn);
185 
186 		qed_iov_free(p_hwfn);
187 		qed_l2_free(p_hwfn);
188 		qed_dmae_info_free(p_hwfn);
189 		qed_dcbx_info_free(p_hwfn);
190 	}
191 }
192 
193 /******************** QM initialization *******************/
194 #define ACTIVE_TCS_BMAP 0x9f
195 #define ACTIVE_TCS_BMAP_4PORT_K2 0xf
196 
197 /* determines the physical queue flags for a given PF. */
qed_get_pq_flags(struct qed_hwfn * p_hwfn)198 static u32 qed_get_pq_flags(struct qed_hwfn *p_hwfn)
199 {
200 	u32 flags;
201 
202 	/* common flags */
203 	flags = PQ_FLAGS_LB;
204 
205 	/* feature flags */
206 	if (IS_QED_SRIOV(p_hwfn->cdev))
207 		flags |= PQ_FLAGS_VFS;
208 
209 	/* protocol flags */
210 	switch (p_hwfn->hw_info.personality) {
211 	case QED_PCI_ETH:
212 		flags |= PQ_FLAGS_MCOS;
213 		break;
214 	case QED_PCI_FCOE:
215 		flags |= PQ_FLAGS_OFLD;
216 		break;
217 	case QED_PCI_ISCSI:
218 		flags |= PQ_FLAGS_ACK | PQ_FLAGS_OOO | PQ_FLAGS_OFLD;
219 		break;
220 	case QED_PCI_ETH_ROCE:
221 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_OFLD | PQ_FLAGS_LLT;
222 		if (IS_QED_MULTI_TC_ROCE(p_hwfn))
223 			flags |= PQ_FLAGS_MTC;
224 		break;
225 	case QED_PCI_ETH_IWARP:
226 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_ACK | PQ_FLAGS_OOO |
227 		    PQ_FLAGS_OFLD;
228 		break;
229 	default:
230 		DP_ERR(p_hwfn,
231 		       "unknown personality %d\n", p_hwfn->hw_info.personality);
232 		return 0;
233 	}
234 
235 	return flags;
236 }
237 
238 /* Getters for resource amounts necessary for qm initialization */
qed_init_qm_get_num_tcs(struct qed_hwfn * p_hwfn)239 static u8 qed_init_qm_get_num_tcs(struct qed_hwfn *p_hwfn)
240 {
241 	return p_hwfn->hw_info.num_hw_tc;
242 }
243 
qed_init_qm_get_num_vfs(struct qed_hwfn * p_hwfn)244 static u16 qed_init_qm_get_num_vfs(struct qed_hwfn *p_hwfn)
245 {
246 	return IS_QED_SRIOV(p_hwfn->cdev) ?
247 	       p_hwfn->cdev->p_iov_info->total_vfs : 0;
248 }
249 
qed_init_qm_get_num_mtc_tcs(struct qed_hwfn * p_hwfn)250 static u8 qed_init_qm_get_num_mtc_tcs(struct qed_hwfn *p_hwfn)
251 {
252 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
253 
254 	if (!(PQ_FLAGS_MTC & pq_flags))
255 		return 1;
256 
257 	return qed_init_qm_get_num_tcs(p_hwfn);
258 }
259 
260 #define NUM_DEFAULT_RLS 1
261 
qed_init_qm_get_num_pf_rls(struct qed_hwfn * p_hwfn)262 static u16 qed_init_qm_get_num_pf_rls(struct qed_hwfn *p_hwfn)
263 {
264 	u16 num_pf_rls, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
265 
266 	/* num RLs can't exceed resource amount of rls or vports */
267 	num_pf_rls = (u16) min_t(u32, RESC_NUM(p_hwfn, QED_RL),
268 				 RESC_NUM(p_hwfn, QED_VPORT));
269 
270 	/* Make sure after we reserve there's something left */
271 	if (num_pf_rls < num_vfs + NUM_DEFAULT_RLS)
272 		return 0;
273 
274 	/* subtract rls necessary for VFs and one default one for the PF */
275 	num_pf_rls -= num_vfs + NUM_DEFAULT_RLS;
276 
277 	return num_pf_rls;
278 }
279 
qed_init_qm_get_num_vports(struct qed_hwfn * p_hwfn)280 static u16 qed_init_qm_get_num_vports(struct qed_hwfn *p_hwfn)
281 {
282 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
283 
284 	/* all pqs share the same vport, except for vfs and pf_rl pqs */
285 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
286 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
287 	       (!!(PQ_FLAGS_VFS & pq_flags)) *
288 	       qed_init_qm_get_num_vfs(p_hwfn) + 1;
289 }
290 
291 /* calc amount of PQs according to the requested flags */
qed_init_qm_get_num_pqs(struct qed_hwfn * p_hwfn)292 static u16 qed_init_qm_get_num_pqs(struct qed_hwfn *p_hwfn)
293 {
294 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
295 
296 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
297 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
298 	       (!!(PQ_FLAGS_MCOS & pq_flags)) *
299 	       qed_init_qm_get_num_tcs(p_hwfn) +
300 	       (!!(PQ_FLAGS_LB & pq_flags)) + (!!(PQ_FLAGS_OOO & pq_flags)) +
301 	       (!!(PQ_FLAGS_ACK & pq_flags)) +
302 	       (!!(PQ_FLAGS_OFLD & pq_flags)) *
303 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
304 	       (!!(PQ_FLAGS_LLT & pq_flags)) *
305 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
306 	       (!!(PQ_FLAGS_VFS & pq_flags)) * qed_init_qm_get_num_vfs(p_hwfn);
307 }
308 
309 /* initialize the top level QM params */
qed_init_qm_params(struct qed_hwfn * p_hwfn)310 static void qed_init_qm_params(struct qed_hwfn *p_hwfn)
311 {
312 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
313 	bool four_port;
314 
315 	/* pq and vport bases for this PF */
316 	qm_info->start_pq = (u16) RESC_START(p_hwfn, QED_PQ);
317 	qm_info->start_vport = (u8) RESC_START(p_hwfn, QED_VPORT);
318 
319 	/* rate limiting and weighted fair queueing are always enabled */
320 	qm_info->vport_rl_en = true;
321 	qm_info->vport_wfq_en = true;
322 
323 	/* TC config is different for AH 4 port */
324 	four_port = p_hwfn->cdev->num_ports_in_engine == MAX_NUM_PORTS_K2;
325 
326 	/* in AH 4 port we have fewer TCs per port */
327 	qm_info->max_phys_tcs_per_port = four_port ? NUM_PHYS_TCS_4PORT_K2 :
328 						     NUM_OF_PHYS_TCS;
329 
330 	/* unless MFW indicated otherwise, ooo_tc == 3 for
331 	 * AH 4-port and 4 otherwise.
332 	 */
333 	if (!qm_info->ooo_tc)
334 		qm_info->ooo_tc = four_port ? DCBX_TCP_OOO_K2_4PORT_TC :
335 					      DCBX_TCP_OOO_TC;
336 }
337 
338 /* initialize qm vport params */
qed_init_qm_vport_params(struct qed_hwfn * p_hwfn)339 static void qed_init_qm_vport_params(struct qed_hwfn *p_hwfn)
340 {
341 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
342 	u8 i;
343 
344 	/* all vports participate in weighted fair queueing */
345 	for (i = 0; i < qed_init_qm_get_num_vports(p_hwfn); i++)
346 		qm_info->qm_vport_params[i].vport_wfq = 1;
347 }
348 
349 /* initialize qm port params */
qed_init_qm_port_params(struct qed_hwfn * p_hwfn)350 static void qed_init_qm_port_params(struct qed_hwfn *p_hwfn)
351 {
352 	/* Initialize qm port parameters */
353 	u8 i, active_phys_tcs, num_ports = p_hwfn->cdev->num_ports_in_engine;
354 
355 	/* indicate how ooo and high pri traffic is dealt with */
356 	active_phys_tcs = num_ports == MAX_NUM_PORTS_K2 ?
357 			  ACTIVE_TCS_BMAP_4PORT_K2 :
358 			  ACTIVE_TCS_BMAP;
359 
360 	for (i = 0; i < num_ports; i++) {
361 		struct init_qm_port_params *p_qm_port =
362 		    &p_hwfn->qm_info.qm_port_params[i];
363 
364 		p_qm_port->active = 1;
365 		p_qm_port->active_phys_tcs = active_phys_tcs;
366 		p_qm_port->num_pbf_cmd_lines = PBF_MAX_CMD_LINES / num_ports;
367 		p_qm_port->num_btb_blocks = BTB_MAX_BLOCKS / num_ports;
368 	}
369 }
370 
371 /* Reset the params which must be reset for qm init. QM init may be called as
372  * a result of flows other than driver load (e.g. dcbx renegotiation). Other
373  * params may be affected by the init but would simply recalculate to the same
374  * values. The allocations made for QM init, ports, vports, pqs and vfqs are not
375  * affected as these amounts stay the same.
376  */
qed_init_qm_reset_params(struct qed_hwfn * p_hwfn)377 static void qed_init_qm_reset_params(struct qed_hwfn *p_hwfn)
378 {
379 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
380 
381 	qm_info->num_pqs = 0;
382 	qm_info->num_vports = 0;
383 	qm_info->num_pf_rls = 0;
384 	qm_info->num_vf_pqs = 0;
385 	qm_info->first_vf_pq = 0;
386 	qm_info->first_mcos_pq = 0;
387 	qm_info->first_rl_pq = 0;
388 }
389 
qed_init_qm_advance_vport(struct qed_hwfn * p_hwfn)390 static void qed_init_qm_advance_vport(struct qed_hwfn *p_hwfn)
391 {
392 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
393 
394 	qm_info->num_vports++;
395 
396 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
397 		DP_ERR(p_hwfn,
398 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
399 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
400 }
401 
402 /* initialize a single pq and manage qm_info resources accounting.
403  * The pq_init_flags param determines whether the PQ is rate limited
404  * (for VF or PF) and whether a new vport is allocated to the pq or not
405  * (i.e. vport will be shared).
406  */
407 
408 /* flags for pq init */
409 #define PQ_INIT_SHARE_VPORT     (1 << 0)
410 #define PQ_INIT_PF_RL           (1 << 1)
411 #define PQ_INIT_VF_RL           (1 << 2)
412 
413 /* defines for pq init */
414 #define PQ_INIT_DEFAULT_WRR_GROUP       1
415 #define PQ_INIT_DEFAULT_TC              0
416 
qed_hw_info_set_offload_tc(struct qed_hw_info * p_info,u8 tc)417 void qed_hw_info_set_offload_tc(struct qed_hw_info *p_info, u8 tc)
418 {
419 	p_info->offload_tc = tc;
420 	p_info->offload_tc_set = true;
421 }
422 
qed_is_offload_tc_set(struct qed_hwfn * p_hwfn)423 static bool qed_is_offload_tc_set(struct qed_hwfn *p_hwfn)
424 {
425 	return p_hwfn->hw_info.offload_tc_set;
426 }
427 
qed_get_offload_tc(struct qed_hwfn * p_hwfn)428 static u32 qed_get_offload_tc(struct qed_hwfn *p_hwfn)
429 {
430 	if (qed_is_offload_tc_set(p_hwfn))
431 		return p_hwfn->hw_info.offload_tc;
432 
433 	return PQ_INIT_DEFAULT_TC;
434 }
435 
qed_init_qm_pq(struct qed_hwfn * p_hwfn,struct qed_qm_info * qm_info,u8 tc,u32 pq_init_flags)436 static void qed_init_qm_pq(struct qed_hwfn *p_hwfn,
437 			   struct qed_qm_info *qm_info,
438 			   u8 tc, u32 pq_init_flags)
439 {
440 	u16 pq_idx = qm_info->num_pqs, max_pq = qed_init_qm_get_num_pqs(p_hwfn);
441 
442 	if (pq_idx > max_pq)
443 		DP_ERR(p_hwfn,
444 		       "pq overflow! pq %d, max pq %d\n", pq_idx, max_pq);
445 
446 	/* init pq params */
447 	qm_info->qm_pq_params[pq_idx].port_id = p_hwfn->port_id;
448 	qm_info->qm_pq_params[pq_idx].vport_id = qm_info->start_vport +
449 	    qm_info->num_vports;
450 	qm_info->qm_pq_params[pq_idx].tc_id = tc;
451 	qm_info->qm_pq_params[pq_idx].wrr_group = PQ_INIT_DEFAULT_WRR_GROUP;
452 	qm_info->qm_pq_params[pq_idx].rl_valid =
453 	    (pq_init_flags & PQ_INIT_PF_RL || pq_init_flags & PQ_INIT_VF_RL);
454 
455 	/* qm params accounting */
456 	qm_info->num_pqs++;
457 	if (!(pq_init_flags & PQ_INIT_SHARE_VPORT))
458 		qm_info->num_vports++;
459 
460 	if (pq_init_flags & PQ_INIT_PF_RL)
461 		qm_info->num_pf_rls++;
462 
463 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
464 		DP_ERR(p_hwfn,
465 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
466 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
467 
468 	if (qm_info->num_pf_rls > qed_init_qm_get_num_pf_rls(p_hwfn))
469 		DP_ERR(p_hwfn,
470 		       "rl overflow! qm_info->num_pf_rls %d, qm_init_get_num_pf_rls() %d\n",
471 		       qm_info->num_pf_rls, qed_init_qm_get_num_pf_rls(p_hwfn));
472 }
473 
474 /* get pq index according to PQ_FLAGS */
qed_init_qm_get_idx_from_flags(struct qed_hwfn * p_hwfn,unsigned long pq_flags)475 static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
476 					   unsigned long pq_flags)
477 {
478 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
479 
480 	/* Can't have multiple flags set here */
481 	if (bitmap_weight(&pq_flags,
482 			  sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
483 		DP_ERR(p_hwfn, "requested multiple pq flags 0x%lx\n", pq_flags);
484 		goto err;
485 	}
486 
487 	if (!(qed_get_pq_flags(p_hwfn) & pq_flags)) {
488 		DP_ERR(p_hwfn, "pq flag 0x%lx is not set\n", pq_flags);
489 		goto err;
490 	}
491 
492 	switch (pq_flags) {
493 	case PQ_FLAGS_RLS:
494 		return &qm_info->first_rl_pq;
495 	case PQ_FLAGS_MCOS:
496 		return &qm_info->first_mcos_pq;
497 	case PQ_FLAGS_LB:
498 		return &qm_info->pure_lb_pq;
499 	case PQ_FLAGS_OOO:
500 		return &qm_info->ooo_pq;
501 	case PQ_FLAGS_ACK:
502 		return &qm_info->pure_ack_pq;
503 	case PQ_FLAGS_OFLD:
504 		return &qm_info->first_ofld_pq;
505 	case PQ_FLAGS_LLT:
506 		return &qm_info->first_llt_pq;
507 	case PQ_FLAGS_VFS:
508 		return &qm_info->first_vf_pq;
509 	default:
510 		goto err;
511 	}
512 
513 err:
514 	return &qm_info->start_pq;
515 }
516 
517 /* save pq index in qm info */
qed_init_qm_set_idx(struct qed_hwfn * p_hwfn,u32 pq_flags,u16 pq_val)518 static void qed_init_qm_set_idx(struct qed_hwfn *p_hwfn,
519 				u32 pq_flags, u16 pq_val)
520 {
521 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
522 
523 	*base_pq_idx = p_hwfn->qm_info.start_pq + pq_val;
524 }
525 
526 /* get tx pq index, with the PQ TX base already set (ready for context init) */
qed_get_cm_pq_idx(struct qed_hwfn * p_hwfn,u32 pq_flags)527 u16 qed_get_cm_pq_idx(struct qed_hwfn *p_hwfn, u32 pq_flags)
528 {
529 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
530 
531 	return *base_pq_idx + CM_TX_PQ_BASE;
532 }
533 
qed_get_cm_pq_idx_mcos(struct qed_hwfn * p_hwfn,u8 tc)534 u16 qed_get_cm_pq_idx_mcos(struct qed_hwfn *p_hwfn, u8 tc)
535 {
536 	u8 max_tc = qed_init_qm_get_num_tcs(p_hwfn);
537 
538 	if (max_tc == 0) {
539 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
540 		       PQ_FLAGS_MCOS);
541 		return p_hwfn->qm_info.start_pq;
542 	}
543 
544 	if (tc > max_tc)
545 		DP_ERR(p_hwfn, "tc %d must be smaller than %d\n", tc, max_tc);
546 
547 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_MCOS) + (tc % max_tc);
548 }
549 
qed_get_cm_pq_idx_vf(struct qed_hwfn * p_hwfn,u16 vf)550 u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf)
551 {
552 	u16 max_vf = qed_init_qm_get_num_vfs(p_hwfn);
553 
554 	if (max_vf == 0) {
555 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
556 		       PQ_FLAGS_VFS);
557 		return p_hwfn->qm_info.start_pq;
558 	}
559 
560 	if (vf > max_vf)
561 		DP_ERR(p_hwfn, "vf %d must be smaller than %d\n", vf, max_vf);
562 
563 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_VFS) + (vf % max_vf);
564 }
565 
qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn * p_hwfn,u8 tc)566 u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc)
567 {
568 	u16 first_ofld_pq, pq_offset;
569 
570 	first_ofld_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
571 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
572 		    tc : PQ_INIT_DEFAULT_TC;
573 
574 	return first_ofld_pq + pq_offset;
575 }
576 
qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn * p_hwfn,u8 tc)577 u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc)
578 {
579 	u16 first_llt_pq, pq_offset;
580 
581 	first_llt_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
582 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
583 		    tc : PQ_INIT_DEFAULT_TC;
584 
585 	return first_llt_pq + pq_offset;
586 }
587 
588 /* Functions for creating specific types of pqs */
qed_init_qm_lb_pq(struct qed_hwfn * p_hwfn)589 static void qed_init_qm_lb_pq(struct qed_hwfn *p_hwfn)
590 {
591 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
592 
593 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LB))
594 		return;
595 
596 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LB, qm_info->num_pqs);
597 	qed_init_qm_pq(p_hwfn, qm_info, PURE_LB_TC, PQ_INIT_SHARE_VPORT);
598 }
599 
qed_init_qm_ooo_pq(struct qed_hwfn * p_hwfn)600 static void qed_init_qm_ooo_pq(struct qed_hwfn *p_hwfn)
601 {
602 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
603 
604 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OOO))
605 		return;
606 
607 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OOO, qm_info->num_pqs);
608 	qed_init_qm_pq(p_hwfn, qm_info, qm_info->ooo_tc, PQ_INIT_SHARE_VPORT);
609 }
610 
qed_init_qm_pure_ack_pq(struct qed_hwfn * p_hwfn)611 static void qed_init_qm_pure_ack_pq(struct qed_hwfn *p_hwfn)
612 {
613 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
614 
615 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_ACK))
616 		return;
617 
618 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_ACK, qm_info->num_pqs);
619 	qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
620 		       PQ_INIT_SHARE_VPORT);
621 }
622 
qed_init_qm_mtc_pqs(struct qed_hwfn * p_hwfn)623 static void qed_init_qm_mtc_pqs(struct qed_hwfn *p_hwfn)
624 {
625 	u8 num_tcs = qed_init_qm_get_num_mtc_tcs(p_hwfn);
626 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
627 	u8 tc;
628 
629 	/* override pq's TC if offload TC is set */
630 	for (tc = 0; tc < num_tcs; tc++)
631 		qed_init_qm_pq(p_hwfn, qm_info,
632 			       qed_is_offload_tc_set(p_hwfn) ?
633 			       p_hwfn->hw_info.offload_tc : tc,
634 			       PQ_INIT_SHARE_VPORT);
635 }
636 
qed_init_qm_offload_pq(struct qed_hwfn * p_hwfn)637 static void qed_init_qm_offload_pq(struct qed_hwfn *p_hwfn)
638 {
639 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
640 
641 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OFLD))
642 		return;
643 
644 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OFLD, qm_info->num_pqs);
645 	qed_init_qm_mtc_pqs(p_hwfn);
646 }
647 
qed_init_qm_low_latency_pq(struct qed_hwfn * p_hwfn)648 static void qed_init_qm_low_latency_pq(struct qed_hwfn *p_hwfn)
649 {
650 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
651 
652 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LLT))
653 		return;
654 
655 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LLT, qm_info->num_pqs);
656 	qed_init_qm_mtc_pqs(p_hwfn);
657 }
658 
qed_init_qm_mcos_pqs(struct qed_hwfn * p_hwfn)659 static void qed_init_qm_mcos_pqs(struct qed_hwfn *p_hwfn)
660 {
661 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
662 	u8 tc_idx;
663 
664 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_MCOS))
665 		return;
666 
667 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_MCOS, qm_info->num_pqs);
668 	for (tc_idx = 0; tc_idx < qed_init_qm_get_num_tcs(p_hwfn); tc_idx++)
669 		qed_init_qm_pq(p_hwfn, qm_info, tc_idx, PQ_INIT_SHARE_VPORT);
670 }
671 
qed_init_qm_vf_pqs(struct qed_hwfn * p_hwfn)672 static void qed_init_qm_vf_pqs(struct qed_hwfn *p_hwfn)
673 {
674 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
675 	u16 vf_idx, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
676 
677 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_VFS))
678 		return;
679 
680 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_VFS, qm_info->num_pqs);
681 	qm_info->num_vf_pqs = num_vfs;
682 	for (vf_idx = 0; vf_idx < num_vfs; vf_idx++)
683 		qed_init_qm_pq(p_hwfn,
684 			       qm_info, PQ_INIT_DEFAULT_TC, PQ_INIT_VF_RL);
685 }
686 
qed_init_qm_rl_pqs(struct qed_hwfn * p_hwfn)687 static void qed_init_qm_rl_pqs(struct qed_hwfn *p_hwfn)
688 {
689 	u16 pf_rls_idx, num_pf_rls = qed_init_qm_get_num_pf_rls(p_hwfn);
690 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
691 
692 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_RLS))
693 		return;
694 
695 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_RLS, qm_info->num_pqs);
696 	for (pf_rls_idx = 0; pf_rls_idx < num_pf_rls; pf_rls_idx++)
697 		qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
698 			       PQ_INIT_PF_RL);
699 }
700 
qed_init_qm_pq_params(struct qed_hwfn * p_hwfn)701 static void qed_init_qm_pq_params(struct qed_hwfn *p_hwfn)
702 {
703 	/* rate limited pqs, must come first (FW assumption) */
704 	qed_init_qm_rl_pqs(p_hwfn);
705 
706 	/* pqs for multi cos */
707 	qed_init_qm_mcos_pqs(p_hwfn);
708 
709 	/* pure loopback pq */
710 	qed_init_qm_lb_pq(p_hwfn);
711 
712 	/* out of order pq */
713 	qed_init_qm_ooo_pq(p_hwfn);
714 
715 	/* pure ack pq */
716 	qed_init_qm_pure_ack_pq(p_hwfn);
717 
718 	/* pq for offloaded protocol */
719 	qed_init_qm_offload_pq(p_hwfn);
720 
721 	/* low latency pq */
722 	qed_init_qm_low_latency_pq(p_hwfn);
723 
724 	/* done sharing vports */
725 	qed_init_qm_advance_vport(p_hwfn);
726 
727 	/* pqs for vfs */
728 	qed_init_qm_vf_pqs(p_hwfn);
729 }
730 
731 /* compare values of getters against resources amounts */
qed_init_qm_sanity(struct qed_hwfn * p_hwfn)732 static int qed_init_qm_sanity(struct qed_hwfn *p_hwfn)
733 {
734 	if (qed_init_qm_get_num_vports(p_hwfn) > RESC_NUM(p_hwfn, QED_VPORT)) {
735 		DP_ERR(p_hwfn, "requested amount of vports exceeds resource\n");
736 		return -EINVAL;
737 	}
738 
739 	if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
740 		return 0;
741 
742 	if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
743 		p_hwfn->hw_info.multi_tc_roce_en = 0;
744 		DP_NOTICE(p_hwfn,
745 			  "multi-tc roce was disabled to reduce requested amount of pqs\n");
746 		if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
747 			return 0;
748 	}
749 
750 	DP_ERR(p_hwfn, "requested amount of pqs exceeds resource\n");
751 	return -EINVAL;
752 }
753 
qed_dp_init_qm_params(struct qed_hwfn * p_hwfn)754 static void qed_dp_init_qm_params(struct qed_hwfn *p_hwfn)
755 {
756 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
757 	struct init_qm_vport_params *vport;
758 	struct init_qm_port_params *port;
759 	struct init_qm_pq_params *pq;
760 	int i, tc;
761 
762 	/* top level params */
763 	DP_VERBOSE(p_hwfn,
764 		   NETIF_MSG_HW,
765 		   "qm init top level params: start_pq %d, start_vport %d, pure_lb_pq %d, offload_pq %d, llt_pq %d, pure_ack_pq %d\n",
766 		   qm_info->start_pq,
767 		   qm_info->start_vport,
768 		   qm_info->pure_lb_pq,
769 		   qm_info->first_ofld_pq,
770 		   qm_info->first_llt_pq,
771 		   qm_info->pure_ack_pq);
772 	DP_VERBOSE(p_hwfn,
773 		   NETIF_MSG_HW,
774 		   "ooo_pq %d, first_vf_pq %d, num_pqs %d, num_vf_pqs %d, num_vports %d, max_phys_tcs_per_port %d\n",
775 		   qm_info->ooo_pq,
776 		   qm_info->first_vf_pq,
777 		   qm_info->num_pqs,
778 		   qm_info->num_vf_pqs,
779 		   qm_info->num_vports, qm_info->max_phys_tcs_per_port);
780 	DP_VERBOSE(p_hwfn,
781 		   NETIF_MSG_HW,
782 		   "pf_rl_en %d, pf_wfq_en %d, vport_rl_en %d, vport_wfq_en %d, pf_wfq %d, pf_rl %d, num_pf_rls %d, pq_flags %x\n",
783 		   qm_info->pf_rl_en,
784 		   qm_info->pf_wfq_en,
785 		   qm_info->vport_rl_en,
786 		   qm_info->vport_wfq_en,
787 		   qm_info->pf_wfq,
788 		   qm_info->pf_rl,
789 		   qm_info->num_pf_rls, qed_get_pq_flags(p_hwfn));
790 
791 	/* port table */
792 	for (i = 0; i < p_hwfn->cdev->num_ports_in_engine; i++) {
793 		port = &(qm_info->qm_port_params[i]);
794 		DP_VERBOSE(p_hwfn,
795 			   NETIF_MSG_HW,
796 			   "port idx %d, active %d, active_phys_tcs %d, num_pbf_cmd_lines %d, num_btb_blocks %d, reserved %d\n",
797 			   i,
798 			   port->active,
799 			   port->active_phys_tcs,
800 			   port->num_pbf_cmd_lines,
801 			   port->num_btb_blocks, port->reserved);
802 	}
803 
804 	/* vport table */
805 	for (i = 0; i < qm_info->num_vports; i++) {
806 		vport = &(qm_info->qm_vport_params[i]);
807 		DP_VERBOSE(p_hwfn,
808 			   NETIF_MSG_HW,
809 			   "vport idx %d, vport_rl %d, wfq %d, first_tx_pq_id [ ",
810 			   qm_info->start_vport + i,
811 			   vport->vport_rl, vport->vport_wfq);
812 		for (tc = 0; tc < NUM_OF_TCS; tc++)
813 			DP_VERBOSE(p_hwfn,
814 				   NETIF_MSG_HW,
815 				   "%d ", vport->first_tx_pq_id[tc]);
816 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "]\n");
817 	}
818 
819 	/* pq table */
820 	for (i = 0; i < qm_info->num_pqs; i++) {
821 		pq = &(qm_info->qm_pq_params[i]);
822 		DP_VERBOSE(p_hwfn,
823 			   NETIF_MSG_HW,
824 			   "pq idx %d, port %d, vport_id %d, tc %d, wrr_grp %d, rl_valid %d\n",
825 			   qm_info->start_pq + i,
826 			   pq->port_id,
827 			   pq->vport_id,
828 			   pq->tc_id, pq->wrr_group, pq->rl_valid);
829 	}
830 }
831 
qed_init_qm_info(struct qed_hwfn * p_hwfn)832 static void qed_init_qm_info(struct qed_hwfn *p_hwfn)
833 {
834 	/* reset params required for init run */
835 	qed_init_qm_reset_params(p_hwfn);
836 
837 	/* init QM top level params */
838 	qed_init_qm_params(p_hwfn);
839 
840 	/* init QM port params */
841 	qed_init_qm_port_params(p_hwfn);
842 
843 	/* init QM vport params */
844 	qed_init_qm_vport_params(p_hwfn);
845 
846 	/* init QM physical queue params */
847 	qed_init_qm_pq_params(p_hwfn);
848 
849 	/* display all that init */
850 	qed_dp_init_qm_params(p_hwfn);
851 }
852 
853 /* This function reconfigures the QM pf on the fly.
854  * For this purpose we:
855  * 1. reconfigure the QM database
856  * 2. set new values to runtime array
857  * 3. send an sdm_qm_cmd through the rbc interface to stop the QM
858  * 4. activate init tool in QM_PF stage
859  * 5. send an sdm_qm_cmd through rbc interface to release the QM
860  */
qed_qm_reconf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)861 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
862 {
863 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
864 	bool b_rc;
865 	int rc;
866 
867 	/* initialize qed's qm data structure */
868 	qed_init_qm_info(p_hwfn);
869 
870 	/* stop PF's qm queues */
871 	spin_lock_bh(&qm_lock);
872 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, false, true,
873 				    qm_info->start_pq, qm_info->num_pqs);
874 	spin_unlock_bh(&qm_lock);
875 	if (!b_rc)
876 		return -EINVAL;
877 
878 	/* clear the QM_PF runtime phase leftovers from previous init */
879 	qed_init_clear_rt_data(p_hwfn);
880 
881 	/* prepare QM portion of runtime array */
882 	qed_qm_init_pf(p_hwfn, p_ptt, false);
883 
884 	/* activate init tool on runtime array */
885 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, p_hwfn->rel_pf_id,
886 			  p_hwfn->hw_info.hw_mode);
887 	if (rc)
888 		return rc;
889 
890 	/* start PF's qm queues */
891 	spin_lock_bh(&qm_lock);
892 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, true, true,
893 				    qm_info->start_pq, qm_info->num_pqs);
894 	spin_unlock_bh(&qm_lock);
895 	if (!b_rc)
896 		return -EINVAL;
897 
898 	return 0;
899 }
900 
qed_alloc_qm_data(struct qed_hwfn * p_hwfn)901 static int qed_alloc_qm_data(struct qed_hwfn *p_hwfn)
902 {
903 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
904 	int rc;
905 
906 	rc = qed_init_qm_sanity(p_hwfn);
907 	if (rc)
908 		goto alloc_err;
909 
910 	qm_info->qm_pq_params = kcalloc(qed_init_qm_get_num_pqs(p_hwfn),
911 					sizeof(*qm_info->qm_pq_params),
912 					GFP_KERNEL);
913 	if (!qm_info->qm_pq_params)
914 		goto alloc_err;
915 
916 	qm_info->qm_vport_params = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
917 					   sizeof(*qm_info->qm_vport_params),
918 					   GFP_KERNEL);
919 	if (!qm_info->qm_vport_params)
920 		goto alloc_err;
921 
922 	qm_info->qm_port_params = kcalloc(p_hwfn->cdev->num_ports_in_engine,
923 					  sizeof(*qm_info->qm_port_params),
924 					  GFP_KERNEL);
925 	if (!qm_info->qm_port_params)
926 		goto alloc_err;
927 
928 	qm_info->wfq_data = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
929 				    sizeof(*qm_info->wfq_data),
930 				    GFP_KERNEL);
931 	if (!qm_info->wfq_data)
932 		goto alloc_err;
933 
934 	return 0;
935 
936 alloc_err:
937 	DP_NOTICE(p_hwfn, "Failed to allocate memory for QM params\n");
938 	qed_qm_info_free(p_hwfn);
939 	return -ENOMEM;
940 }
941 
qed_resc_alloc(struct qed_dev * cdev)942 int qed_resc_alloc(struct qed_dev *cdev)
943 {
944 	u32 rdma_tasks, excess_tasks;
945 	u32 line_count;
946 	int i, rc = 0;
947 
948 	if (IS_VF(cdev)) {
949 		for_each_hwfn(cdev, i) {
950 			rc = qed_l2_alloc(&cdev->hwfns[i]);
951 			if (rc)
952 				return rc;
953 		}
954 		return rc;
955 	}
956 
957 	cdev->fw_data = kzalloc(sizeof(*cdev->fw_data), GFP_KERNEL);
958 	if (!cdev->fw_data)
959 		return -ENOMEM;
960 
961 	for_each_hwfn(cdev, i) {
962 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
963 		u32 n_eqes, num_cons;
964 
965 		/* First allocate the context manager structure */
966 		rc = qed_cxt_mngr_alloc(p_hwfn);
967 		if (rc)
968 			goto alloc_err;
969 
970 		/* Set the HW cid/tid numbers (in the contest manager)
971 		 * Must be done prior to any further computations.
972 		 */
973 		rc = qed_cxt_set_pf_params(p_hwfn, RDMA_MAX_TIDS);
974 		if (rc)
975 			goto alloc_err;
976 
977 		rc = qed_alloc_qm_data(p_hwfn);
978 		if (rc)
979 			goto alloc_err;
980 
981 		/* init qm info */
982 		qed_init_qm_info(p_hwfn);
983 
984 		/* Compute the ILT client partition */
985 		rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
986 		if (rc) {
987 			DP_NOTICE(p_hwfn,
988 				  "too many ILT lines; re-computing with less lines\n");
989 			/* In case there are not enough ILT lines we reduce the
990 			 * number of RDMA tasks and re-compute.
991 			 */
992 			excess_tasks =
993 			    qed_cxt_cfg_ilt_compute_excess(p_hwfn, line_count);
994 			if (!excess_tasks)
995 				goto alloc_err;
996 
997 			rdma_tasks = RDMA_MAX_TIDS - excess_tasks;
998 			rc = qed_cxt_set_pf_params(p_hwfn, rdma_tasks);
999 			if (rc)
1000 				goto alloc_err;
1001 
1002 			rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
1003 			if (rc) {
1004 				DP_ERR(p_hwfn,
1005 				       "failed ILT compute. Requested too many lines: %u\n",
1006 				       line_count);
1007 
1008 				goto alloc_err;
1009 			}
1010 		}
1011 
1012 		/* CID map / ILT shadow table / T2
1013 		 * The talbes sizes are determined by the computations above
1014 		 */
1015 		rc = qed_cxt_tables_alloc(p_hwfn);
1016 		if (rc)
1017 			goto alloc_err;
1018 
1019 		/* SPQ, must follow ILT because initializes SPQ context */
1020 		rc = qed_spq_alloc(p_hwfn);
1021 		if (rc)
1022 			goto alloc_err;
1023 
1024 		/* SP status block allocation */
1025 		p_hwfn->p_dpc_ptt = qed_get_reserved_ptt(p_hwfn,
1026 							 RESERVED_PTT_DPC);
1027 
1028 		rc = qed_int_alloc(p_hwfn, p_hwfn->p_main_ptt);
1029 		if (rc)
1030 			goto alloc_err;
1031 
1032 		rc = qed_iov_alloc(p_hwfn);
1033 		if (rc)
1034 			goto alloc_err;
1035 
1036 		/* EQ */
1037 		n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain);
1038 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
1039 			enum protocol_type rdma_proto;
1040 
1041 			if (QED_IS_ROCE_PERSONALITY(p_hwfn))
1042 				rdma_proto = PROTOCOLID_ROCE;
1043 			else
1044 				rdma_proto = PROTOCOLID_IWARP;
1045 
1046 			num_cons = qed_cxt_get_proto_cid_count(p_hwfn,
1047 							       rdma_proto,
1048 							       NULL) * 2;
1049 			n_eqes += num_cons + 2 * MAX_NUM_VFS_BB;
1050 		} else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
1051 			num_cons =
1052 			    qed_cxt_get_proto_cid_count(p_hwfn,
1053 							PROTOCOLID_ISCSI,
1054 							NULL);
1055 			n_eqes += 2 * num_cons;
1056 		}
1057 
1058 		if (n_eqes > 0xFFFF) {
1059 			DP_ERR(p_hwfn,
1060 			       "Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n",
1061 			       n_eqes, 0xFFFF);
1062 			goto alloc_no_mem;
1063 		}
1064 
1065 		rc = qed_eq_alloc(p_hwfn, (u16) n_eqes);
1066 		if (rc)
1067 			goto alloc_err;
1068 
1069 		rc = qed_consq_alloc(p_hwfn);
1070 		if (rc)
1071 			goto alloc_err;
1072 
1073 		rc = qed_l2_alloc(p_hwfn);
1074 		if (rc)
1075 			goto alloc_err;
1076 
1077 #ifdef CONFIG_QED_LL2
1078 		if (p_hwfn->using_ll2) {
1079 			rc = qed_ll2_alloc(p_hwfn);
1080 			if (rc)
1081 				goto alloc_err;
1082 		}
1083 #endif
1084 
1085 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
1086 			rc = qed_fcoe_alloc(p_hwfn);
1087 			if (rc)
1088 				goto alloc_err;
1089 		}
1090 
1091 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
1092 			rc = qed_iscsi_alloc(p_hwfn);
1093 			if (rc)
1094 				goto alloc_err;
1095 			rc = qed_ooo_alloc(p_hwfn);
1096 			if (rc)
1097 				goto alloc_err;
1098 		}
1099 
1100 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
1101 			rc = qed_rdma_info_alloc(p_hwfn);
1102 			if (rc)
1103 				goto alloc_err;
1104 		}
1105 
1106 		/* DMA info initialization */
1107 		rc = qed_dmae_info_alloc(p_hwfn);
1108 		if (rc)
1109 			goto alloc_err;
1110 
1111 		/* DCBX initialization */
1112 		rc = qed_dcbx_info_alloc(p_hwfn);
1113 		if (rc)
1114 			goto alloc_err;
1115 	}
1116 
1117 	cdev->reset_stats = kzalloc(sizeof(*cdev->reset_stats), GFP_KERNEL);
1118 	if (!cdev->reset_stats)
1119 		goto alloc_no_mem;
1120 
1121 	return 0;
1122 
1123 alloc_no_mem:
1124 	rc = -ENOMEM;
1125 alloc_err:
1126 	qed_resc_free(cdev);
1127 	return rc;
1128 }
1129 
qed_resc_setup(struct qed_dev * cdev)1130 void qed_resc_setup(struct qed_dev *cdev)
1131 {
1132 	int i;
1133 
1134 	if (IS_VF(cdev)) {
1135 		for_each_hwfn(cdev, i)
1136 			qed_l2_setup(&cdev->hwfns[i]);
1137 		return;
1138 	}
1139 
1140 	for_each_hwfn(cdev, i) {
1141 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1142 
1143 		qed_cxt_mngr_setup(p_hwfn);
1144 		qed_spq_setup(p_hwfn);
1145 		qed_eq_setup(p_hwfn);
1146 		qed_consq_setup(p_hwfn);
1147 
1148 		/* Read shadow of current MFW mailbox */
1149 		qed_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
1150 		memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
1151 		       p_hwfn->mcp_info->mfw_mb_cur,
1152 		       p_hwfn->mcp_info->mfw_mb_length);
1153 
1154 		qed_int_setup(p_hwfn, p_hwfn->p_main_ptt);
1155 
1156 		qed_l2_setup(p_hwfn);
1157 		qed_iov_setup(p_hwfn);
1158 #ifdef CONFIG_QED_LL2
1159 		if (p_hwfn->using_ll2)
1160 			qed_ll2_setup(p_hwfn);
1161 #endif
1162 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
1163 			qed_fcoe_setup(p_hwfn);
1164 
1165 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
1166 			qed_iscsi_setup(p_hwfn);
1167 			qed_ooo_setup(p_hwfn);
1168 		}
1169 	}
1170 }
1171 
1172 #define FINAL_CLEANUP_POLL_CNT          (100)
1173 #define FINAL_CLEANUP_POLL_TIME         (10)
qed_final_cleanup(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 id,bool is_vf)1174 int qed_final_cleanup(struct qed_hwfn *p_hwfn,
1175 		      struct qed_ptt *p_ptt, u16 id, bool is_vf)
1176 {
1177 	u32 command = 0, addr, count = FINAL_CLEANUP_POLL_CNT;
1178 	int rc = -EBUSY;
1179 
1180 	addr = GTT_BAR0_MAP_REG_USDM_RAM +
1181 		USTORM_FLR_FINAL_ACK_OFFSET(p_hwfn->rel_pf_id);
1182 
1183 	if (is_vf)
1184 		id += 0x10;
1185 
1186 	command |= X_FINAL_CLEANUP_AGG_INT <<
1187 		SDM_AGG_INT_COMP_PARAMS_AGG_INT_INDEX_SHIFT;
1188 	command |= 1 << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_ENABLE_SHIFT;
1189 	command |= id << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_BIT_SHIFT;
1190 	command |= SDM_COMP_TYPE_AGG_INT << SDM_OP_GEN_COMP_TYPE_SHIFT;
1191 
1192 	/* Make sure notification is not set before initiating final cleanup */
1193 	if (REG_RD(p_hwfn, addr)) {
1194 		DP_NOTICE(p_hwfn,
1195 			  "Unexpected; Found final cleanup notification before initiating final cleanup\n");
1196 		REG_WR(p_hwfn, addr, 0);
1197 	}
1198 
1199 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1200 		   "Sending final cleanup for PFVF[%d] [Command %08x]\n",
1201 		   id, command);
1202 
1203 	qed_wr(p_hwfn, p_ptt, XSDM_REG_OPERATION_GEN, command);
1204 
1205 	/* Poll until completion */
1206 	while (!REG_RD(p_hwfn, addr) && count--)
1207 		msleep(FINAL_CLEANUP_POLL_TIME);
1208 
1209 	if (REG_RD(p_hwfn, addr))
1210 		rc = 0;
1211 	else
1212 		DP_NOTICE(p_hwfn,
1213 			  "Failed to receive FW final cleanup notification\n");
1214 
1215 	/* Cleanup afterwards */
1216 	REG_WR(p_hwfn, addr, 0);
1217 
1218 	return rc;
1219 }
1220 
qed_calc_hw_mode(struct qed_hwfn * p_hwfn)1221 static int qed_calc_hw_mode(struct qed_hwfn *p_hwfn)
1222 {
1223 	int hw_mode = 0;
1224 
1225 	if (QED_IS_BB_B0(p_hwfn->cdev)) {
1226 		hw_mode |= 1 << MODE_BB;
1227 	} else if (QED_IS_AH(p_hwfn->cdev)) {
1228 		hw_mode |= 1 << MODE_K2;
1229 	} else {
1230 		DP_NOTICE(p_hwfn, "Unknown chip type %#x\n",
1231 			  p_hwfn->cdev->type);
1232 		return -EINVAL;
1233 	}
1234 
1235 	switch (p_hwfn->cdev->num_ports_in_engine) {
1236 	case 1:
1237 		hw_mode |= 1 << MODE_PORTS_PER_ENG_1;
1238 		break;
1239 	case 2:
1240 		hw_mode |= 1 << MODE_PORTS_PER_ENG_2;
1241 		break;
1242 	case 4:
1243 		hw_mode |= 1 << MODE_PORTS_PER_ENG_4;
1244 		break;
1245 	default:
1246 		DP_NOTICE(p_hwfn, "num_ports_in_engine = %d not supported\n",
1247 			  p_hwfn->cdev->num_ports_in_engine);
1248 		return -EINVAL;
1249 	}
1250 
1251 	if (test_bit(QED_MF_OVLAN_CLSS, &p_hwfn->cdev->mf_bits))
1252 		hw_mode |= 1 << MODE_MF_SD;
1253 	else
1254 		hw_mode |= 1 << MODE_MF_SI;
1255 
1256 	hw_mode |= 1 << MODE_ASIC;
1257 
1258 	if (p_hwfn->cdev->num_hwfns > 1)
1259 		hw_mode |= 1 << MODE_100G;
1260 
1261 	p_hwfn->hw_info.hw_mode = hw_mode;
1262 
1263 	DP_VERBOSE(p_hwfn, (NETIF_MSG_PROBE | NETIF_MSG_IFUP),
1264 		   "Configuring function for hw_mode: 0x%08x\n",
1265 		   p_hwfn->hw_info.hw_mode);
1266 
1267 	return 0;
1268 }
1269 
1270 /* Init run time data for all PFs on an engine. */
qed_init_cau_rt_data(struct qed_dev * cdev)1271 static void qed_init_cau_rt_data(struct qed_dev *cdev)
1272 {
1273 	u32 offset = CAU_REG_SB_VAR_MEMORY_RT_OFFSET;
1274 	int i, igu_sb_id;
1275 
1276 	for_each_hwfn(cdev, i) {
1277 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1278 		struct qed_igu_info *p_igu_info;
1279 		struct qed_igu_block *p_block;
1280 		struct cau_sb_entry sb_entry;
1281 
1282 		p_igu_info = p_hwfn->hw_info.p_igu_info;
1283 
1284 		for (igu_sb_id = 0;
1285 		     igu_sb_id < QED_MAPPING_MEMORY_SIZE(cdev); igu_sb_id++) {
1286 			p_block = &p_igu_info->entry[igu_sb_id];
1287 
1288 			if (!p_block->is_pf)
1289 				continue;
1290 
1291 			qed_init_cau_sb_entry(p_hwfn, &sb_entry,
1292 					      p_block->function_id, 0, 0);
1293 			STORE_RT_REG_AGG(p_hwfn, offset + igu_sb_id * 2,
1294 					 sb_entry);
1295 		}
1296 	}
1297 }
1298 
qed_init_cache_line_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)1299 static void qed_init_cache_line_size(struct qed_hwfn *p_hwfn,
1300 				     struct qed_ptt *p_ptt)
1301 {
1302 	u32 val, wr_mbs, cache_line_size;
1303 
1304 	val = qed_rd(p_hwfn, p_ptt, PSWRQ2_REG_WR_MBS0);
1305 	switch (val) {
1306 	case 0:
1307 		wr_mbs = 128;
1308 		break;
1309 	case 1:
1310 		wr_mbs = 256;
1311 		break;
1312 	case 2:
1313 		wr_mbs = 512;
1314 		break;
1315 	default:
1316 		DP_INFO(p_hwfn,
1317 			"Unexpected value of PSWRQ2_REG_WR_MBS0 [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
1318 			val);
1319 		return;
1320 	}
1321 
1322 	cache_line_size = min_t(u32, L1_CACHE_BYTES, wr_mbs);
1323 	switch (cache_line_size) {
1324 	case 32:
1325 		val = 0;
1326 		break;
1327 	case 64:
1328 		val = 1;
1329 		break;
1330 	case 128:
1331 		val = 2;
1332 		break;
1333 	case 256:
1334 		val = 3;
1335 		break;
1336 	default:
1337 		DP_INFO(p_hwfn,
1338 			"Unexpected value of cache line size [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
1339 			cache_line_size);
1340 	}
1341 
1342 	if (L1_CACHE_BYTES > wr_mbs)
1343 		DP_INFO(p_hwfn,
1344 			"The cache line size for padding is suboptimal for performance [OS cache line size 0x%x, wr mbs 0x%x]\n",
1345 			L1_CACHE_BYTES, wr_mbs);
1346 
1347 	STORE_RT_REG(p_hwfn, PGLUE_REG_B_CACHE_LINE_SIZE_RT_OFFSET, val);
1348 	if (val > 0) {
1349 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_WR_RT_OFFSET, val);
1350 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_RD_RT_OFFSET, val);
1351 	}
1352 }
1353 
qed_hw_init_common(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)1354 static int qed_hw_init_common(struct qed_hwfn *p_hwfn,
1355 			      struct qed_ptt *p_ptt, int hw_mode)
1356 {
1357 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1358 	struct qed_qm_common_rt_init_params params;
1359 	struct qed_dev *cdev = p_hwfn->cdev;
1360 	u8 vf_id, max_num_vfs;
1361 	u16 num_pfs, pf_id;
1362 	u32 concrete_fid;
1363 	int rc = 0;
1364 
1365 	qed_init_cau_rt_data(cdev);
1366 
1367 	/* Program GTT windows */
1368 	qed_gtt_init(p_hwfn);
1369 
1370 	if (p_hwfn->mcp_info) {
1371 		if (p_hwfn->mcp_info->func_info.bandwidth_max)
1372 			qm_info->pf_rl_en = true;
1373 		if (p_hwfn->mcp_info->func_info.bandwidth_min)
1374 			qm_info->pf_wfq_en = true;
1375 	}
1376 
1377 	memset(&params, 0, sizeof(params));
1378 	params.max_ports_per_engine = p_hwfn->cdev->num_ports_in_engine;
1379 	params.max_phys_tcs_per_port = qm_info->max_phys_tcs_per_port;
1380 	params.pf_rl_en = qm_info->pf_rl_en;
1381 	params.pf_wfq_en = qm_info->pf_wfq_en;
1382 	params.vport_rl_en = qm_info->vport_rl_en;
1383 	params.vport_wfq_en = qm_info->vport_wfq_en;
1384 	params.port_params = qm_info->qm_port_params;
1385 
1386 	qed_qm_common_rt_init(p_hwfn, &params);
1387 
1388 	qed_cxt_hw_init_common(p_hwfn);
1389 
1390 	qed_init_cache_line_size(p_hwfn, p_ptt);
1391 
1392 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_ENGINE, ANY_PHASE_ID, hw_mode);
1393 	if (rc)
1394 		return rc;
1395 
1396 	qed_wr(p_hwfn, p_ptt, PSWRQ2_REG_L2P_VALIDATE_VFID, 0);
1397 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_USE_CLIENTID_IN_TAG, 1);
1398 
1399 	if (QED_IS_BB(p_hwfn->cdev)) {
1400 		num_pfs = NUM_OF_ENG_PFS(p_hwfn->cdev);
1401 		for (pf_id = 0; pf_id < num_pfs; pf_id++) {
1402 			qed_fid_pretend(p_hwfn, p_ptt, pf_id);
1403 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
1404 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
1405 		}
1406 		/* pretend to original PF */
1407 		qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
1408 	}
1409 
1410 	max_num_vfs = QED_IS_AH(cdev) ? MAX_NUM_VFS_K2 : MAX_NUM_VFS_BB;
1411 	for (vf_id = 0; vf_id < max_num_vfs; vf_id++) {
1412 		concrete_fid = qed_vfid_to_concrete(p_hwfn, vf_id);
1413 		qed_fid_pretend(p_hwfn, p_ptt, (u16) concrete_fid);
1414 		qed_wr(p_hwfn, p_ptt, CCFC_REG_STRONG_ENABLE_VF, 0x1);
1415 		qed_wr(p_hwfn, p_ptt, CCFC_REG_WEAK_ENABLE_VF, 0x0);
1416 		qed_wr(p_hwfn, p_ptt, TCFC_REG_STRONG_ENABLE_VF, 0x1);
1417 		qed_wr(p_hwfn, p_ptt, TCFC_REG_WEAK_ENABLE_VF, 0x0);
1418 	}
1419 	/* pretend to original PF */
1420 	qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
1421 
1422 	return rc;
1423 }
1424 
1425 static int
qed_hw_init_dpi_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 pwm_region_size,u32 n_cpus)1426 qed_hw_init_dpi_size(struct qed_hwfn *p_hwfn,
1427 		     struct qed_ptt *p_ptt, u32 pwm_region_size, u32 n_cpus)
1428 {
1429 	u32 dpi_bit_shift, dpi_count, dpi_page_size;
1430 	u32 min_dpis;
1431 	u32 n_wids;
1432 
1433 	/* Calculate DPI size */
1434 	n_wids = max_t(u32, QED_MIN_WIDS, n_cpus);
1435 	dpi_page_size = QED_WID_SIZE * roundup_pow_of_two(n_wids);
1436 	dpi_page_size = (dpi_page_size + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
1437 	dpi_bit_shift = ilog2(dpi_page_size / 4096);
1438 	dpi_count = pwm_region_size / dpi_page_size;
1439 
1440 	min_dpis = p_hwfn->pf_params.rdma_pf_params.min_dpis;
1441 	min_dpis = max_t(u32, QED_MIN_DPIS, min_dpis);
1442 
1443 	p_hwfn->dpi_size = dpi_page_size;
1444 	p_hwfn->dpi_count = dpi_count;
1445 
1446 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPI_BIT_SHIFT, dpi_bit_shift);
1447 
1448 	if (dpi_count < min_dpis)
1449 		return -EINVAL;
1450 
1451 	return 0;
1452 }
1453 
1454 enum QED_ROCE_EDPM_MODE {
1455 	QED_ROCE_EDPM_MODE_ENABLE = 0,
1456 	QED_ROCE_EDPM_MODE_FORCE_ON = 1,
1457 	QED_ROCE_EDPM_MODE_DISABLE = 2,
1458 };
1459 
1460 static int
qed_hw_init_pf_doorbell_bar(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)1461 qed_hw_init_pf_doorbell_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
1462 {
1463 	u32 pwm_regsize, norm_regsize;
1464 	u32 non_pwm_conn, min_addr_reg1;
1465 	u32 db_bar_size, n_cpus = 1;
1466 	u32 roce_edpm_mode;
1467 	u32 pf_dems_shift;
1468 	int rc = 0;
1469 	u8 cond;
1470 
1471 	db_bar_size = qed_hw_bar_size(p_hwfn, p_ptt, BAR_ID_1);
1472 	if (p_hwfn->cdev->num_hwfns > 1)
1473 		db_bar_size /= 2;
1474 
1475 	/* Calculate doorbell regions */
1476 	non_pwm_conn = qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_CORE) +
1477 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_CORE,
1478 						   NULL) +
1479 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH,
1480 						   NULL);
1481 	norm_regsize = roundup(QED_PF_DEMS_SIZE * non_pwm_conn, PAGE_SIZE);
1482 	min_addr_reg1 = norm_regsize / 4096;
1483 	pwm_regsize = db_bar_size - norm_regsize;
1484 
1485 	/* Check that the normal and PWM sizes are valid */
1486 	if (db_bar_size < norm_regsize) {
1487 		DP_ERR(p_hwfn->cdev,
1488 		       "Doorbell BAR size 0x%x is too small (normal region is 0x%0x )\n",
1489 		       db_bar_size, norm_regsize);
1490 		return -EINVAL;
1491 	}
1492 
1493 	if (pwm_regsize < QED_MIN_PWM_REGION) {
1494 		DP_ERR(p_hwfn->cdev,
1495 		       "PWM region size 0x%0x is too small. Should be at least 0x%0x (Doorbell BAR size is 0x%x and normal region size is 0x%0x)\n",
1496 		       pwm_regsize,
1497 		       QED_MIN_PWM_REGION, db_bar_size, norm_regsize);
1498 		return -EINVAL;
1499 	}
1500 
1501 	/* Calculate number of DPIs */
1502 	roce_edpm_mode = p_hwfn->pf_params.rdma_pf_params.roce_edpm_mode;
1503 	if ((roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE) ||
1504 	    ((roce_edpm_mode == QED_ROCE_EDPM_MODE_FORCE_ON))) {
1505 		/* Either EDPM is mandatory, or we are attempting to allocate a
1506 		 * WID per CPU.
1507 		 */
1508 		n_cpus = num_present_cpus();
1509 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
1510 	}
1511 
1512 	cond = (rc && (roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE)) ||
1513 	       (roce_edpm_mode == QED_ROCE_EDPM_MODE_DISABLE);
1514 	if (cond || p_hwfn->dcbx_no_edpm) {
1515 		/* Either EDPM is disabled from user configuration, or it is
1516 		 * disabled via DCBx, or it is not mandatory and we failed to
1517 		 * allocated a WID per CPU.
1518 		 */
1519 		n_cpus = 1;
1520 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
1521 
1522 		if (cond)
1523 			qed_rdma_dpm_bar(p_hwfn, p_ptt);
1524 	}
1525 
1526 	p_hwfn->wid_count = (u16) n_cpus;
1527 
1528 	DP_INFO(p_hwfn,
1529 		"doorbell bar: normal_region_size=%d, pwm_region_size=%d, dpi_size=%d, dpi_count=%d, roce_edpm=%s\n",
1530 		norm_regsize,
1531 		pwm_regsize,
1532 		p_hwfn->dpi_size,
1533 		p_hwfn->dpi_count,
1534 		((p_hwfn->dcbx_no_edpm) || (p_hwfn->db_bar_no_edpm)) ?
1535 		"disabled" : "enabled");
1536 
1537 	if (rc) {
1538 		DP_ERR(p_hwfn,
1539 		       "Failed to allocate enough DPIs. Allocated %d but the current minimum is %d.\n",
1540 		       p_hwfn->dpi_count,
1541 		       p_hwfn->pf_params.rdma_pf_params.min_dpis);
1542 		return -EINVAL;
1543 	}
1544 
1545 	p_hwfn->dpi_start_offset = norm_regsize;
1546 
1547 	/* DEMS size is configured log2 of DWORDs, hence the division by 4 */
1548 	pf_dems_shift = ilog2(QED_PF_DEMS_SIZE / 4);
1549 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_ICID_BIT_SHIFT_NORM, pf_dems_shift);
1550 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_MIN_ADDR_REG1, min_addr_reg1);
1551 
1552 	return 0;
1553 }
1554 
qed_hw_init_port(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)1555 static int qed_hw_init_port(struct qed_hwfn *p_hwfn,
1556 			    struct qed_ptt *p_ptt, int hw_mode)
1557 {
1558 	int rc = 0;
1559 
1560 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, hw_mode);
1561 	if (rc)
1562 		return rc;
1563 
1564 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_WRITE_PAD_ENABLE, 0);
1565 
1566 	return 0;
1567 }
1568 
qed_hw_init_pf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_tunnel_info * p_tunn,int hw_mode,bool b_hw_start,enum qed_int_mode int_mode,bool allow_npar_tx_switch)1569 static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
1570 			  struct qed_ptt *p_ptt,
1571 			  struct qed_tunnel_info *p_tunn,
1572 			  int hw_mode,
1573 			  bool b_hw_start,
1574 			  enum qed_int_mode int_mode,
1575 			  bool allow_npar_tx_switch)
1576 {
1577 	u8 rel_pf_id = p_hwfn->rel_pf_id;
1578 	int rc = 0;
1579 
1580 	if (p_hwfn->mcp_info) {
1581 		struct qed_mcp_function_info *p_info;
1582 
1583 		p_info = &p_hwfn->mcp_info->func_info;
1584 		if (p_info->bandwidth_min)
1585 			p_hwfn->qm_info.pf_wfq = p_info->bandwidth_min;
1586 
1587 		/* Update rate limit once we'll actually have a link */
1588 		p_hwfn->qm_info.pf_rl = 100000;
1589 	}
1590 
1591 	qed_cxt_hw_init_pf(p_hwfn, p_ptt);
1592 
1593 	qed_int_igu_init_rt(p_hwfn);
1594 
1595 	/* Set VLAN in NIG if needed */
1596 	if (hw_mode & BIT(MODE_MF_SD)) {
1597 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "Configuring LLH_FUNC_TAG\n");
1598 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_EN_RT_OFFSET, 1);
1599 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_VALUE_RT_OFFSET,
1600 			     p_hwfn->hw_info.ovlan);
1601 
1602 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
1603 			   "Configuring LLH_FUNC_FILTER_HDR_SEL\n");
1604 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_FILTER_HDR_SEL_RT_OFFSET,
1605 			     1);
1606 	}
1607 
1608 	/* Enable classification by MAC if needed */
1609 	if (hw_mode & BIT(MODE_MF_SI)) {
1610 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
1611 			   "Configuring TAGMAC_CLS_TYPE\n");
1612 		STORE_RT_REG(p_hwfn,
1613 			     NIG_REG_LLH_FUNC_TAGMAC_CLS_TYPE_RT_OFFSET, 1);
1614 	}
1615 
1616 	/* Protocol Configuration */
1617 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
1618 		     (p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0);
1619 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
1620 		     (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
1621 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);
1622 
1623 	/* Cleanup chip from previous driver if such remains exist */
1624 	rc = qed_final_cleanup(p_hwfn, p_ptt, rel_pf_id, false);
1625 	if (rc)
1626 		return rc;
1627 
1628 	/* Sanity check before the PF init sequence that uses DMAE */
1629 	rc = qed_dmae_sanity(p_hwfn, p_ptt, "pf_phase");
1630 	if (rc)
1631 		return rc;
1632 
1633 	/* PF Init sequence */
1634 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PF, rel_pf_id, hw_mode);
1635 	if (rc)
1636 		return rc;
1637 
1638 	/* QM_PF Init sequence (may be invoked separately e.g. for DCB) */
1639 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, rel_pf_id, hw_mode);
1640 	if (rc)
1641 		return rc;
1642 
1643 	/* Pure runtime initializations - directly to the HW  */
1644 	qed_int_igu_init_pure_rt(p_hwfn, p_ptt, true, true);
1645 
1646 	rc = qed_hw_init_pf_doorbell_bar(p_hwfn, p_ptt);
1647 	if (rc)
1648 		return rc;
1649 
1650 	if (b_hw_start) {
1651 		/* enable interrupts */
1652 		qed_int_igu_enable(p_hwfn, p_ptt, int_mode);
1653 
1654 		/* send function start command */
1655 		rc = qed_sp_pf_start(p_hwfn, p_ptt, p_tunn,
1656 				     allow_npar_tx_switch);
1657 		if (rc) {
1658 			DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
1659 			return rc;
1660 		}
1661 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
1662 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
1663 			qed_wr(p_hwfn, p_ptt,
1664 			       PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
1665 			       0x100);
1666 		}
1667 	}
1668 	return rc;
1669 }
1670 
qed_change_pci_hwfn(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 enable)1671 static int qed_change_pci_hwfn(struct qed_hwfn *p_hwfn,
1672 			       struct qed_ptt *p_ptt,
1673 			       u8 enable)
1674 {
1675 	u32 delay_idx = 0, val, set_val = enable ? 1 : 0;
1676 
1677 	/* Change PF in PXP */
1678 	qed_wr(p_hwfn, p_ptt,
1679 	       PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, set_val);
1680 
1681 	/* wait until value is set - try for 1 second every 50us */
1682 	for (delay_idx = 0; delay_idx < 20000; delay_idx++) {
1683 		val = qed_rd(p_hwfn, p_ptt,
1684 			     PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER);
1685 		if (val == set_val)
1686 			break;
1687 
1688 		usleep_range(50, 60);
1689 	}
1690 
1691 	if (val != set_val) {
1692 		DP_NOTICE(p_hwfn,
1693 			  "PFID_ENABLE_MASTER wasn't changed after a second\n");
1694 		return -EAGAIN;
1695 	}
1696 
1697 	return 0;
1698 }
1699 
qed_reset_mb_shadow(struct qed_hwfn * p_hwfn,struct qed_ptt * p_main_ptt)1700 static void qed_reset_mb_shadow(struct qed_hwfn *p_hwfn,
1701 				struct qed_ptt *p_main_ptt)
1702 {
1703 	/* Read shadow of current MFW mailbox */
1704 	qed_mcp_read_mb(p_hwfn, p_main_ptt);
1705 	memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
1706 	       p_hwfn->mcp_info->mfw_mb_cur, p_hwfn->mcp_info->mfw_mb_length);
1707 }
1708 
1709 static void
qed_fill_load_req_params(struct qed_load_req_params * p_load_req,struct qed_drv_load_params * p_drv_load)1710 qed_fill_load_req_params(struct qed_load_req_params *p_load_req,
1711 			 struct qed_drv_load_params *p_drv_load)
1712 {
1713 	memset(p_load_req, 0, sizeof(*p_load_req));
1714 
1715 	p_load_req->drv_role = p_drv_load->is_crash_kernel ?
1716 			       QED_DRV_ROLE_KDUMP : QED_DRV_ROLE_OS;
1717 	p_load_req->timeout_val = p_drv_load->mfw_timeout_val;
1718 	p_load_req->avoid_eng_reset = p_drv_load->avoid_eng_reset;
1719 	p_load_req->override_force_load = p_drv_load->override_force_load;
1720 }
1721 
qed_vf_start(struct qed_hwfn * p_hwfn,struct qed_hw_init_params * p_params)1722 static int qed_vf_start(struct qed_hwfn *p_hwfn,
1723 			struct qed_hw_init_params *p_params)
1724 {
1725 	if (p_params->p_tunn) {
1726 		qed_vf_set_vf_start_tunn_update_param(p_params->p_tunn);
1727 		qed_vf_pf_tunnel_param_update(p_hwfn, p_params->p_tunn);
1728 	}
1729 
1730 	p_hwfn->b_int_enabled = true;
1731 
1732 	return 0;
1733 }
1734 
qed_hw_init(struct qed_dev * cdev,struct qed_hw_init_params * p_params)1735 int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params)
1736 {
1737 	struct qed_load_req_params load_req_params;
1738 	u32 load_code, resp, param, drv_mb_param;
1739 	bool b_default_mtu = true;
1740 	struct qed_hwfn *p_hwfn;
1741 	int rc = 0, mfw_rc, i;
1742 	u16 ether_type;
1743 
1744 	if ((p_params->int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
1745 		DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
1746 		return -EINVAL;
1747 	}
1748 
1749 	if (IS_PF(cdev)) {
1750 		rc = qed_init_fw_data(cdev, p_params->bin_fw_data);
1751 		if (rc)
1752 			return rc;
1753 	}
1754 
1755 	for_each_hwfn(cdev, i) {
1756 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1757 
1758 		/* If management didn't provide a default, set one of our own */
1759 		if (!p_hwfn->hw_info.mtu) {
1760 			p_hwfn->hw_info.mtu = 1500;
1761 			b_default_mtu = false;
1762 		}
1763 
1764 		if (IS_VF(cdev)) {
1765 			qed_vf_start(p_hwfn, p_params);
1766 			continue;
1767 		}
1768 
1769 		/* Enable DMAE in PXP */
1770 		rc = qed_change_pci_hwfn(p_hwfn, p_hwfn->p_main_ptt, true);
1771 
1772 		rc = qed_calc_hw_mode(p_hwfn);
1773 		if (rc)
1774 			return rc;
1775 
1776 		if (IS_PF(cdev) && (test_bit(QED_MF_8021Q_TAGGING,
1777 					     &cdev->mf_bits) ||
1778 				    test_bit(QED_MF_8021AD_TAGGING,
1779 					     &cdev->mf_bits))) {
1780 			if (test_bit(QED_MF_8021Q_TAGGING, &cdev->mf_bits))
1781 				ether_type = ETH_P_8021Q;
1782 			else
1783 				ether_type = ETH_P_8021AD;
1784 			STORE_RT_REG(p_hwfn, PRS_REG_TAG_ETHERTYPE_0_RT_OFFSET,
1785 				     ether_type);
1786 			STORE_RT_REG(p_hwfn, NIG_REG_TAG_ETHERTYPE_0_RT_OFFSET,
1787 				     ether_type);
1788 			STORE_RT_REG(p_hwfn, PBF_REG_TAG_ETHERTYPE_0_RT_OFFSET,
1789 				     ether_type);
1790 			STORE_RT_REG(p_hwfn, DORQ_REG_TAG1_ETHERTYPE_RT_OFFSET,
1791 				     ether_type);
1792 		}
1793 
1794 		qed_fill_load_req_params(&load_req_params,
1795 					 p_params->p_drv_load_params);
1796 		rc = qed_mcp_load_req(p_hwfn, p_hwfn->p_main_ptt,
1797 				      &load_req_params);
1798 		if (rc) {
1799 			DP_NOTICE(p_hwfn, "Failed sending a LOAD_REQ command\n");
1800 			return rc;
1801 		}
1802 
1803 		load_code = load_req_params.load_code;
1804 		DP_VERBOSE(p_hwfn, QED_MSG_SP,
1805 			   "Load request was sent. Load code: 0x%x\n",
1806 			   load_code);
1807 
1808 		qed_mcp_set_capabilities(p_hwfn, p_hwfn->p_main_ptt);
1809 
1810 		qed_reset_mb_shadow(p_hwfn, p_hwfn->p_main_ptt);
1811 
1812 		p_hwfn->first_on_engine = (load_code ==
1813 					   FW_MSG_CODE_DRV_LOAD_ENGINE);
1814 
1815 		switch (load_code) {
1816 		case FW_MSG_CODE_DRV_LOAD_ENGINE:
1817 			rc = qed_hw_init_common(p_hwfn, p_hwfn->p_main_ptt,
1818 						p_hwfn->hw_info.hw_mode);
1819 			if (rc)
1820 				break;
1821 		/* Fall through */
1822 		case FW_MSG_CODE_DRV_LOAD_PORT:
1823 			rc = qed_hw_init_port(p_hwfn, p_hwfn->p_main_ptt,
1824 					      p_hwfn->hw_info.hw_mode);
1825 			if (rc)
1826 				break;
1827 
1828 		/* Fall through */
1829 		case FW_MSG_CODE_DRV_LOAD_FUNCTION:
1830 			rc = qed_hw_init_pf(p_hwfn, p_hwfn->p_main_ptt,
1831 					    p_params->p_tunn,
1832 					    p_hwfn->hw_info.hw_mode,
1833 					    p_params->b_hw_start,
1834 					    p_params->int_mode,
1835 					    p_params->allow_npar_tx_switch);
1836 			break;
1837 		default:
1838 			DP_NOTICE(p_hwfn,
1839 				  "Unexpected load code [0x%08x]", load_code);
1840 			rc = -EINVAL;
1841 			break;
1842 		}
1843 
1844 		if (rc)
1845 			DP_NOTICE(p_hwfn,
1846 				  "init phase failed for loadcode 0x%x (rc %d)\n",
1847 				   load_code, rc);
1848 
1849 		/* ACK mfw regardless of success or failure of initialization */
1850 		mfw_rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
1851 				     DRV_MSG_CODE_LOAD_DONE,
1852 				     0, &load_code, &param);
1853 		if (rc)
1854 			return rc;
1855 		if (mfw_rc) {
1856 			DP_NOTICE(p_hwfn, "Failed sending LOAD_DONE command\n");
1857 			return mfw_rc;
1858 		}
1859 
1860 		/* Check if there is a DID mismatch between nvm-cfg/efuse */
1861 		if (param & FW_MB_PARAM_LOAD_DONE_DID_EFUSE_ERROR)
1862 			DP_NOTICE(p_hwfn,
1863 				  "warning: device configuration is not supported on this board type. The device may not function as expected.\n");
1864 
1865 		/* send DCBX attention request command */
1866 		DP_VERBOSE(p_hwfn,
1867 			   QED_MSG_DCB,
1868 			   "sending phony dcbx set command to trigger DCBx attention handling\n");
1869 		mfw_rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
1870 				     DRV_MSG_CODE_SET_DCBX,
1871 				     1 << DRV_MB_PARAM_DCBX_NOTIFY_SHIFT,
1872 				     &load_code, &param);
1873 		if (mfw_rc) {
1874 			DP_NOTICE(p_hwfn,
1875 				  "Failed to send DCBX attention request\n");
1876 			return mfw_rc;
1877 		}
1878 
1879 		p_hwfn->hw_init_done = true;
1880 	}
1881 
1882 	if (IS_PF(cdev)) {
1883 		p_hwfn = QED_LEADING_HWFN(cdev);
1884 
1885 		/* Get pre-negotiated values for stag, bandwidth etc. */
1886 		DP_VERBOSE(p_hwfn,
1887 			   QED_MSG_SPQ,
1888 			   "Sending GET_OEM_UPDATES command to trigger stag/bandwidth attention handling\n");
1889 		drv_mb_param = 1 << DRV_MB_PARAM_DUMMY_OEM_UPDATES_OFFSET;
1890 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
1891 				 DRV_MSG_CODE_GET_OEM_UPDATES,
1892 				 drv_mb_param, &resp, &param);
1893 		if (rc)
1894 			DP_NOTICE(p_hwfn,
1895 				  "Failed to send GET_OEM_UPDATES attention request\n");
1896 
1897 		drv_mb_param = STORM_FW_VERSION;
1898 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
1899 				 DRV_MSG_CODE_OV_UPDATE_STORM_FW_VER,
1900 				 drv_mb_param, &load_code, &param);
1901 		if (rc)
1902 			DP_INFO(p_hwfn, "Failed to update firmware version\n");
1903 
1904 		if (!b_default_mtu) {
1905 			rc = qed_mcp_ov_update_mtu(p_hwfn, p_hwfn->p_main_ptt,
1906 						   p_hwfn->hw_info.mtu);
1907 			if (rc)
1908 				DP_INFO(p_hwfn,
1909 					"Failed to update default mtu\n");
1910 		}
1911 
1912 		rc = qed_mcp_ov_update_driver_state(p_hwfn,
1913 						    p_hwfn->p_main_ptt,
1914 						  QED_OV_DRIVER_STATE_DISABLED);
1915 		if (rc)
1916 			DP_INFO(p_hwfn, "Failed to update driver state\n");
1917 
1918 		rc = qed_mcp_ov_update_eswitch(p_hwfn, p_hwfn->p_main_ptt,
1919 					       QED_OV_ESWITCH_NONE);
1920 		if (rc)
1921 			DP_INFO(p_hwfn, "Failed to update eswitch mode\n");
1922 	}
1923 
1924 	return 0;
1925 }
1926 
1927 #define QED_HW_STOP_RETRY_LIMIT (10)
qed_hw_timers_stop(struct qed_dev * cdev,struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)1928 static void qed_hw_timers_stop(struct qed_dev *cdev,
1929 			       struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
1930 {
1931 	int i;
1932 
1933 	/* close timers */
1934 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_CONN, 0x0);
1935 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, 0x0);
1936 
1937 	for (i = 0; i < QED_HW_STOP_RETRY_LIMIT; i++) {
1938 		if ((!qed_rd(p_hwfn, p_ptt,
1939 			     TM_REG_PF_SCAN_ACTIVE_CONN)) &&
1940 		    (!qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK)))
1941 			break;
1942 
1943 		/* Dependent on number of connection/tasks, possibly
1944 		 * 1ms sleep is required between polls
1945 		 */
1946 		usleep_range(1000, 2000);
1947 	}
1948 
1949 	if (i < QED_HW_STOP_RETRY_LIMIT)
1950 		return;
1951 
1952 	DP_NOTICE(p_hwfn,
1953 		  "Timers linear scans are not over [Connection %02x Tasks %02x]\n",
1954 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_CONN),
1955 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK));
1956 }
1957 
qed_hw_timers_stop_all(struct qed_dev * cdev)1958 void qed_hw_timers_stop_all(struct qed_dev *cdev)
1959 {
1960 	int j;
1961 
1962 	for_each_hwfn(cdev, j) {
1963 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
1964 		struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
1965 
1966 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
1967 	}
1968 }
1969 
qed_hw_stop(struct qed_dev * cdev)1970 int qed_hw_stop(struct qed_dev *cdev)
1971 {
1972 	struct qed_hwfn *p_hwfn;
1973 	struct qed_ptt *p_ptt;
1974 	int rc, rc2 = 0;
1975 	int j;
1976 
1977 	for_each_hwfn(cdev, j) {
1978 		p_hwfn = &cdev->hwfns[j];
1979 		p_ptt = p_hwfn->p_main_ptt;
1980 
1981 		DP_VERBOSE(p_hwfn, NETIF_MSG_IFDOWN, "Stopping hw/fw\n");
1982 
1983 		if (IS_VF(cdev)) {
1984 			qed_vf_pf_int_cleanup(p_hwfn);
1985 			rc = qed_vf_pf_reset(p_hwfn);
1986 			if (rc) {
1987 				DP_NOTICE(p_hwfn,
1988 					  "qed_vf_pf_reset failed. rc = %d.\n",
1989 					  rc);
1990 				rc2 = -EINVAL;
1991 			}
1992 			continue;
1993 		}
1994 
1995 		/* mark the hw as uninitialized... */
1996 		p_hwfn->hw_init_done = false;
1997 
1998 		/* Send unload command to MCP */
1999 		rc = qed_mcp_unload_req(p_hwfn, p_ptt);
2000 		if (rc) {
2001 			DP_NOTICE(p_hwfn,
2002 				  "Failed sending a UNLOAD_REQ command. rc = %d.\n",
2003 				  rc);
2004 			rc2 = -EINVAL;
2005 		}
2006 
2007 		qed_slowpath_irq_sync(p_hwfn);
2008 
2009 		/* After this point no MFW attentions are expected, e.g. prevent
2010 		 * race between pf stop and dcbx pf update.
2011 		 */
2012 		rc = qed_sp_pf_stop(p_hwfn);
2013 		if (rc) {
2014 			DP_NOTICE(p_hwfn,
2015 				  "Failed to close PF against FW [rc = %d]. Continue to stop HW to prevent illegal host access by the device.\n",
2016 				  rc);
2017 			rc2 = -EINVAL;
2018 		}
2019 
2020 		qed_wr(p_hwfn, p_ptt,
2021 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
2022 
2023 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
2024 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
2025 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
2026 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
2027 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
2028 
2029 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
2030 
2031 		/* Disable Attention Generation */
2032 		qed_int_igu_disable_int(p_hwfn, p_ptt);
2033 
2034 		qed_wr(p_hwfn, p_ptt, IGU_REG_LEADING_EDGE_LATCH, 0);
2035 		qed_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0);
2036 
2037 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, true);
2038 
2039 		/* Need to wait 1ms to guarantee SBs are cleared */
2040 		usleep_range(1000, 2000);
2041 
2042 		/* Disable PF in HW blocks */
2043 		qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DB_ENABLE, 0);
2044 		qed_wr(p_hwfn, p_ptt, QM_REG_PF_EN, 0);
2045 
2046 		qed_mcp_unload_done(p_hwfn, p_ptt);
2047 		if (rc) {
2048 			DP_NOTICE(p_hwfn,
2049 				  "Failed sending a UNLOAD_DONE command. rc = %d.\n",
2050 				  rc);
2051 			rc2 = -EINVAL;
2052 		}
2053 	}
2054 
2055 	if (IS_PF(cdev)) {
2056 		p_hwfn = QED_LEADING_HWFN(cdev);
2057 		p_ptt = QED_LEADING_HWFN(cdev)->p_main_ptt;
2058 
2059 		/* Disable DMAE in PXP - in CMT, this should only be done for
2060 		 * first hw-function, and only after all transactions have
2061 		 * stopped for all active hw-functions.
2062 		 */
2063 		rc = qed_change_pci_hwfn(p_hwfn, p_ptt, false);
2064 		if (rc) {
2065 			DP_NOTICE(p_hwfn,
2066 				  "qed_change_pci_hwfn failed. rc = %d.\n", rc);
2067 			rc2 = -EINVAL;
2068 		}
2069 	}
2070 
2071 	return rc2;
2072 }
2073 
qed_hw_stop_fastpath(struct qed_dev * cdev)2074 int qed_hw_stop_fastpath(struct qed_dev *cdev)
2075 {
2076 	int j;
2077 
2078 	for_each_hwfn(cdev, j) {
2079 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
2080 		struct qed_ptt *p_ptt;
2081 
2082 		if (IS_VF(cdev)) {
2083 			qed_vf_pf_int_cleanup(p_hwfn);
2084 			continue;
2085 		}
2086 		p_ptt = qed_ptt_acquire(p_hwfn);
2087 		if (!p_ptt)
2088 			return -EAGAIN;
2089 
2090 		DP_VERBOSE(p_hwfn,
2091 			   NETIF_MSG_IFDOWN, "Shutting down the fastpath\n");
2092 
2093 		qed_wr(p_hwfn, p_ptt,
2094 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
2095 
2096 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
2097 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
2098 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
2099 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
2100 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
2101 
2102 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, false);
2103 
2104 		/* Need to wait 1ms to guarantee SBs are cleared */
2105 		usleep_range(1000, 2000);
2106 		qed_ptt_release(p_hwfn, p_ptt);
2107 	}
2108 
2109 	return 0;
2110 }
2111 
qed_hw_start_fastpath(struct qed_hwfn * p_hwfn)2112 int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn)
2113 {
2114 	struct qed_ptt *p_ptt;
2115 
2116 	if (IS_VF(p_hwfn->cdev))
2117 		return 0;
2118 
2119 	p_ptt = qed_ptt_acquire(p_hwfn);
2120 	if (!p_ptt)
2121 		return -EAGAIN;
2122 
2123 	if (p_hwfn->p_rdma_info &&
2124 	    p_hwfn->p_rdma_info->active && p_hwfn->b_rdma_enabled_in_prs)
2125 		qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0x1);
2126 
2127 	/* Re-open incoming traffic */
2128 	qed_wr(p_hwfn, p_ptt, NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x0);
2129 	qed_ptt_release(p_hwfn, p_ptt);
2130 
2131 	return 0;
2132 }
2133 
2134 /* Free hwfn memory and resources acquired in hw_hwfn_prepare */
qed_hw_hwfn_free(struct qed_hwfn * p_hwfn)2135 static void qed_hw_hwfn_free(struct qed_hwfn *p_hwfn)
2136 {
2137 	qed_ptt_pool_free(p_hwfn);
2138 	kfree(p_hwfn->hw_info.p_igu_info);
2139 	p_hwfn->hw_info.p_igu_info = NULL;
2140 }
2141 
2142 /* Setup bar access */
qed_hw_hwfn_prepare(struct qed_hwfn * p_hwfn)2143 static void qed_hw_hwfn_prepare(struct qed_hwfn *p_hwfn)
2144 {
2145 	/* clear indirect access */
2146 	if (QED_IS_AH(p_hwfn->cdev)) {
2147 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2148 		       PGLUE_B_REG_PGL_ADDR_E8_F0_K2, 0);
2149 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2150 		       PGLUE_B_REG_PGL_ADDR_EC_F0_K2, 0);
2151 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2152 		       PGLUE_B_REG_PGL_ADDR_F0_F0_K2, 0);
2153 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2154 		       PGLUE_B_REG_PGL_ADDR_F4_F0_K2, 0);
2155 	} else {
2156 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2157 		       PGLUE_B_REG_PGL_ADDR_88_F0_BB, 0);
2158 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2159 		       PGLUE_B_REG_PGL_ADDR_8C_F0_BB, 0);
2160 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2161 		       PGLUE_B_REG_PGL_ADDR_90_F0_BB, 0);
2162 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2163 		       PGLUE_B_REG_PGL_ADDR_94_F0_BB, 0);
2164 	}
2165 
2166 	/* Clean Previous errors if such exist */
2167 	qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2168 	       PGLUE_B_REG_WAS_ERROR_PF_31_0_CLR, 1 << p_hwfn->abs_pf_id);
2169 
2170 	/* enable internal target-read */
2171 	qed_wr(p_hwfn, p_hwfn->p_main_ptt,
2172 	       PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
2173 }
2174 
get_function_id(struct qed_hwfn * p_hwfn)2175 static void get_function_id(struct qed_hwfn *p_hwfn)
2176 {
2177 	/* ME Register */
2178 	p_hwfn->hw_info.opaque_fid = (u16) REG_RD(p_hwfn,
2179 						  PXP_PF_ME_OPAQUE_ADDR);
2180 
2181 	p_hwfn->hw_info.concrete_fid = REG_RD(p_hwfn, PXP_PF_ME_CONCRETE_ADDR);
2182 
2183 	p_hwfn->abs_pf_id = (p_hwfn->hw_info.concrete_fid >> 16) & 0xf;
2184 	p_hwfn->rel_pf_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
2185 				      PXP_CONCRETE_FID_PFID);
2186 	p_hwfn->port_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
2187 				    PXP_CONCRETE_FID_PORT);
2188 
2189 	DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE,
2190 		   "Read ME register: Concrete 0x%08x Opaque 0x%04x\n",
2191 		   p_hwfn->hw_info.concrete_fid, p_hwfn->hw_info.opaque_fid);
2192 }
2193 
qed_hw_set_feat(struct qed_hwfn * p_hwfn)2194 static void qed_hw_set_feat(struct qed_hwfn *p_hwfn)
2195 {
2196 	u32 *feat_num = p_hwfn->hw_info.feat_num;
2197 	struct qed_sb_cnt_info sb_cnt;
2198 	u32 non_l2_sbs = 0;
2199 
2200 	memset(&sb_cnt, 0, sizeof(sb_cnt));
2201 	qed_int_get_num_sbs(p_hwfn, &sb_cnt);
2202 
2203 	if (IS_ENABLED(CONFIG_QED_RDMA) &&
2204 	    QED_IS_RDMA_PERSONALITY(p_hwfn)) {
2205 		/* Roce CNQ each requires: 1 status block + 1 CNQ. We divide
2206 		 * the status blocks equally between L2 / RoCE but with
2207 		 * consideration as to how many l2 queues / cnqs we have.
2208 		 */
2209 		feat_num[QED_RDMA_CNQ] =
2210 			min_t(u32, sb_cnt.cnt / 2,
2211 			      RESC_NUM(p_hwfn, QED_RDMA_CNQ_RAM));
2212 
2213 		non_l2_sbs = feat_num[QED_RDMA_CNQ];
2214 	}
2215 	if (QED_IS_L2_PERSONALITY(p_hwfn)) {
2216 		/* Start by allocating VF queues, then PF's */
2217 		feat_num[QED_VF_L2_QUE] = min_t(u32,
2218 						RESC_NUM(p_hwfn, QED_L2_QUEUE),
2219 						sb_cnt.iov_cnt);
2220 		feat_num[QED_PF_L2_QUE] = min_t(u32,
2221 						sb_cnt.cnt - non_l2_sbs,
2222 						RESC_NUM(p_hwfn,
2223 							 QED_L2_QUEUE) -
2224 						FEAT_NUM(p_hwfn,
2225 							 QED_VF_L2_QUE));
2226 	}
2227 
2228 	if (QED_IS_FCOE_PERSONALITY(p_hwfn))
2229 		feat_num[QED_FCOE_CQ] =  min_t(u32, sb_cnt.cnt,
2230 					       RESC_NUM(p_hwfn,
2231 							QED_CMDQS_CQS));
2232 
2233 	if (QED_IS_ISCSI_PERSONALITY(p_hwfn))
2234 		feat_num[QED_ISCSI_CQ] = min_t(u32, sb_cnt.cnt,
2235 					       RESC_NUM(p_hwfn,
2236 							QED_CMDQS_CQS));
2237 	DP_VERBOSE(p_hwfn,
2238 		   NETIF_MSG_PROBE,
2239 		   "#PF_L2_QUEUES=%d VF_L2_QUEUES=%d #ROCE_CNQ=%d FCOE_CQ=%d ISCSI_CQ=%d #SBS=%d\n",
2240 		   (int)FEAT_NUM(p_hwfn, QED_PF_L2_QUE),
2241 		   (int)FEAT_NUM(p_hwfn, QED_VF_L2_QUE),
2242 		   (int)FEAT_NUM(p_hwfn, QED_RDMA_CNQ),
2243 		   (int)FEAT_NUM(p_hwfn, QED_FCOE_CQ),
2244 		   (int)FEAT_NUM(p_hwfn, QED_ISCSI_CQ),
2245 		   (int)sb_cnt.cnt);
2246 }
2247 
qed_hw_get_resc_name(enum qed_resources res_id)2248 const char *qed_hw_get_resc_name(enum qed_resources res_id)
2249 {
2250 	switch (res_id) {
2251 	case QED_L2_QUEUE:
2252 		return "L2_QUEUE";
2253 	case QED_VPORT:
2254 		return "VPORT";
2255 	case QED_RSS_ENG:
2256 		return "RSS_ENG";
2257 	case QED_PQ:
2258 		return "PQ";
2259 	case QED_RL:
2260 		return "RL";
2261 	case QED_MAC:
2262 		return "MAC";
2263 	case QED_VLAN:
2264 		return "VLAN";
2265 	case QED_RDMA_CNQ_RAM:
2266 		return "RDMA_CNQ_RAM";
2267 	case QED_ILT:
2268 		return "ILT";
2269 	case QED_LL2_QUEUE:
2270 		return "LL2_QUEUE";
2271 	case QED_CMDQS_CQS:
2272 		return "CMDQS_CQS";
2273 	case QED_RDMA_STATS_QUEUE:
2274 		return "RDMA_STATS_QUEUE";
2275 	case QED_BDQ:
2276 		return "BDQ";
2277 	case QED_SB:
2278 		return "SB";
2279 	default:
2280 		return "UNKNOWN_RESOURCE";
2281 	}
2282 }
2283 
2284 static int
__qed_hw_set_soft_resc_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum qed_resources res_id,u32 resc_max_val,u32 * p_mcp_resp)2285 __qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn,
2286 			    struct qed_ptt *p_ptt,
2287 			    enum qed_resources res_id,
2288 			    u32 resc_max_val, u32 *p_mcp_resp)
2289 {
2290 	int rc;
2291 
2292 	rc = qed_mcp_set_resc_max_val(p_hwfn, p_ptt, res_id,
2293 				      resc_max_val, p_mcp_resp);
2294 	if (rc) {
2295 		DP_NOTICE(p_hwfn,
2296 			  "MFW response failure for a max value setting of resource %d [%s]\n",
2297 			  res_id, qed_hw_get_resc_name(res_id));
2298 		return rc;
2299 	}
2300 
2301 	if (*p_mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK)
2302 		DP_INFO(p_hwfn,
2303 			"Failed to set the max value of resource %d [%s]. mcp_resp = 0x%08x.\n",
2304 			res_id, qed_hw_get_resc_name(res_id), *p_mcp_resp);
2305 
2306 	return 0;
2307 }
2308 
2309 static int
qed_hw_set_soft_resc_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2310 qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2311 {
2312 	bool b_ah = QED_IS_AH(p_hwfn->cdev);
2313 	u32 resc_max_val, mcp_resp;
2314 	u8 res_id;
2315 	int rc;
2316 
2317 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
2318 		switch (res_id) {
2319 		case QED_LL2_QUEUE:
2320 			resc_max_val = MAX_NUM_LL2_RX_QUEUES;
2321 			break;
2322 		case QED_RDMA_CNQ_RAM:
2323 			/* No need for a case for QED_CMDQS_CQS since
2324 			 * CNQ/CMDQS are the same resource.
2325 			 */
2326 			resc_max_val = NUM_OF_GLOBAL_QUEUES;
2327 			break;
2328 		case QED_RDMA_STATS_QUEUE:
2329 			resc_max_val = b_ah ? RDMA_NUM_STATISTIC_COUNTERS_K2
2330 			    : RDMA_NUM_STATISTIC_COUNTERS_BB;
2331 			break;
2332 		case QED_BDQ:
2333 			resc_max_val = BDQ_NUM_RESOURCES;
2334 			break;
2335 		default:
2336 			continue;
2337 		}
2338 
2339 		rc = __qed_hw_set_soft_resc_size(p_hwfn, p_ptt, res_id,
2340 						 resc_max_val, &mcp_resp);
2341 		if (rc)
2342 			return rc;
2343 
2344 		/* There's no point to continue to the next resource if the
2345 		 * command is not supported by the MFW.
2346 		 * We do continue if the command is supported but the resource
2347 		 * is unknown to the MFW. Such a resource will be later
2348 		 * configured with the default allocation values.
2349 		 */
2350 		if (mcp_resp == FW_MSG_CODE_UNSUPPORTED)
2351 			return -EINVAL;
2352 	}
2353 
2354 	return 0;
2355 }
2356 
2357 static
qed_hw_get_dflt_resc(struct qed_hwfn * p_hwfn,enum qed_resources res_id,u32 * p_resc_num,u32 * p_resc_start)2358 int qed_hw_get_dflt_resc(struct qed_hwfn *p_hwfn,
2359 			 enum qed_resources res_id,
2360 			 u32 *p_resc_num, u32 *p_resc_start)
2361 {
2362 	u8 num_funcs = p_hwfn->num_funcs_on_engine;
2363 	bool b_ah = QED_IS_AH(p_hwfn->cdev);
2364 
2365 	switch (res_id) {
2366 	case QED_L2_QUEUE:
2367 		*p_resc_num = (b_ah ? MAX_NUM_L2_QUEUES_K2 :
2368 			       MAX_NUM_L2_QUEUES_BB) / num_funcs;
2369 		break;
2370 	case QED_VPORT:
2371 		*p_resc_num = (b_ah ? MAX_NUM_VPORTS_K2 :
2372 			       MAX_NUM_VPORTS_BB) / num_funcs;
2373 		break;
2374 	case QED_RSS_ENG:
2375 		*p_resc_num = (b_ah ? ETH_RSS_ENGINE_NUM_K2 :
2376 			       ETH_RSS_ENGINE_NUM_BB) / num_funcs;
2377 		break;
2378 	case QED_PQ:
2379 		*p_resc_num = (b_ah ? MAX_QM_TX_QUEUES_K2 :
2380 			       MAX_QM_TX_QUEUES_BB) / num_funcs;
2381 		*p_resc_num &= ~0x7;	/* The granularity of the PQs is 8 */
2382 		break;
2383 	case QED_RL:
2384 		*p_resc_num = MAX_QM_GLOBAL_RLS / num_funcs;
2385 		break;
2386 	case QED_MAC:
2387 	case QED_VLAN:
2388 		/* Each VFC resource can accommodate both a MAC and a VLAN */
2389 		*p_resc_num = ETH_NUM_MAC_FILTERS / num_funcs;
2390 		break;
2391 	case QED_ILT:
2392 		*p_resc_num = (b_ah ? PXP_NUM_ILT_RECORDS_K2 :
2393 			       PXP_NUM_ILT_RECORDS_BB) / num_funcs;
2394 		break;
2395 	case QED_LL2_QUEUE:
2396 		*p_resc_num = MAX_NUM_LL2_RX_QUEUES / num_funcs;
2397 		break;
2398 	case QED_RDMA_CNQ_RAM:
2399 	case QED_CMDQS_CQS:
2400 		/* CNQ/CMDQS are the same resource */
2401 		*p_resc_num = NUM_OF_GLOBAL_QUEUES / num_funcs;
2402 		break;
2403 	case QED_RDMA_STATS_QUEUE:
2404 		*p_resc_num = (b_ah ? RDMA_NUM_STATISTIC_COUNTERS_K2 :
2405 			       RDMA_NUM_STATISTIC_COUNTERS_BB) / num_funcs;
2406 		break;
2407 	case QED_BDQ:
2408 		if (p_hwfn->hw_info.personality != QED_PCI_ISCSI &&
2409 		    p_hwfn->hw_info.personality != QED_PCI_FCOE)
2410 			*p_resc_num = 0;
2411 		else
2412 			*p_resc_num = 1;
2413 		break;
2414 	case QED_SB:
2415 		/* Since we want its value to reflect whether MFW supports
2416 		 * the new scheme, have a default of 0.
2417 		 */
2418 		*p_resc_num = 0;
2419 		break;
2420 	default:
2421 		return -EINVAL;
2422 	}
2423 
2424 	switch (res_id) {
2425 	case QED_BDQ:
2426 		if (!*p_resc_num)
2427 			*p_resc_start = 0;
2428 		else if (p_hwfn->cdev->num_ports_in_engine == 4)
2429 			*p_resc_start = p_hwfn->port_id;
2430 		else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
2431 			*p_resc_start = p_hwfn->port_id;
2432 		else if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
2433 			*p_resc_start = p_hwfn->port_id + 2;
2434 		break;
2435 	default:
2436 		*p_resc_start = *p_resc_num * p_hwfn->enabled_func_idx;
2437 		break;
2438 	}
2439 
2440 	return 0;
2441 }
2442 
__qed_hw_set_resc_info(struct qed_hwfn * p_hwfn,enum qed_resources res_id)2443 static int __qed_hw_set_resc_info(struct qed_hwfn *p_hwfn,
2444 				  enum qed_resources res_id)
2445 {
2446 	u32 dflt_resc_num = 0, dflt_resc_start = 0;
2447 	u32 mcp_resp, *p_resc_num, *p_resc_start;
2448 	int rc;
2449 
2450 	p_resc_num = &RESC_NUM(p_hwfn, res_id);
2451 	p_resc_start = &RESC_START(p_hwfn, res_id);
2452 
2453 	rc = qed_hw_get_dflt_resc(p_hwfn, res_id, &dflt_resc_num,
2454 				  &dflt_resc_start);
2455 	if (rc) {
2456 		DP_ERR(p_hwfn,
2457 		       "Failed to get default amount for resource %d [%s]\n",
2458 		       res_id, qed_hw_get_resc_name(res_id));
2459 		return rc;
2460 	}
2461 
2462 	rc = qed_mcp_get_resc_info(p_hwfn, p_hwfn->p_main_ptt, res_id,
2463 				   &mcp_resp, p_resc_num, p_resc_start);
2464 	if (rc) {
2465 		DP_NOTICE(p_hwfn,
2466 			  "MFW response failure for an allocation request for resource %d [%s]\n",
2467 			  res_id, qed_hw_get_resc_name(res_id));
2468 		return rc;
2469 	}
2470 
2471 	/* Default driver values are applied in the following cases:
2472 	 * - The resource allocation MB command is not supported by the MFW
2473 	 * - There is an internal error in the MFW while processing the request
2474 	 * - The resource ID is unknown to the MFW
2475 	 */
2476 	if (mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK) {
2477 		DP_INFO(p_hwfn,
2478 			"Failed to receive allocation info for resource %d [%s]. mcp_resp = 0x%x. Applying default values [%d,%d].\n",
2479 			res_id,
2480 			qed_hw_get_resc_name(res_id),
2481 			mcp_resp, dflt_resc_num, dflt_resc_start);
2482 		*p_resc_num = dflt_resc_num;
2483 		*p_resc_start = dflt_resc_start;
2484 		goto out;
2485 	}
2486 
2487 out:
2488 	/* PQs have to divide by 8 [that's the HW granularity].
2489 	 * Reduce number so it would fit.
2490 	 */
2491 	if ((res_id == QED_PQ) && ((*p_resc_num % 8) || (*p_resc_start % 8))) {
2492 		DP_INFO(p_hwfn,
2493 			"PQs need to align by 8; Number %08x --> %08x, Start %08x --> %08x\n",
2494 			*p_resc_num,
2495 			(*p_resc_num) & ~0x7,
2496 			*p_resc_start, (*p_resc_start) & ~0x7);
2497 		*p_resc_num &= ~0x7;
2498 		*p_resc_start &= ~0x7;
2499 	}
2500 
2501 	return 0;
2502 }
2503 
qed_hw_set_resc_info(struct qed_hwfn * p_hwfn)2504 static int qed_hw_set_resc_info(struct qed_hwfn *p_hwfn)
2505 {
2506 	int rc;
2507 	u8 res_id;
2508 
2509 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
2510 		rc = __qed_hw_set_resc_info(p_hwfn, res_id);
2511 		if (rc)
2512 			return rc;
2513 	}
2514 
2515 	return 0;
2516 }
2517 
qed_hw_get_resc(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2518 static int qed_hw_get_resc(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2519 {
2520 	struct qed_resc_unlock_params resc_unlock_params;
2521 	struct qed_resc_lock_params resc_lock_params;
2522 	bool b_ah = QED_IS_AH(p_hwfn->cdev);
2523 	u8 res_id;
2524 	int rc;
2525 
2526 	/* Setting the max values of the soft resources and the following
2527 	 * resources allocation queries should be atomic. Since several PFs can
2528 	 * run in parallel - a resource lock is needed.
2529 	 * If either the resource lock or resource set value commands are not
2530 	 * supported - skip the the max values setting, release the lock if
2531 	 * needed, and proceed to the queries. Other failures, including a
2532 	 * failure to acquire the lock, will cause this function to fail.
2533 	 */
2534 	qed_mcp_resc_lock_default_init(&resc_lock_params, &resc_unlock_params,
2535 				       QED_RESC_LOCK_RESC_ALLOC, false);
2536 
2537 	rc = qed_mcp_resc_lock(p_hwfn, p_ptt, &resc_lock_params);
2538 	if (rc && rc != -EINVAL) {
2539 		return rc;
2540 	} else if (rc == -EINVAL) {
2541 		DP_INFO(p_hwfn,
2542 			"Skip the max values setting of the soft resources since the resource lock is not supported by the MFW\n");
2543 	} else if (!rc && !resc_lock_params.b_granted) {
2544 		DP_NOTICE(p_hwfn,
2545 			  "Failed to acquire the resource lock for the resource allocation commands\n");
2546 		return -EBUSY;
2547 	} else {
2548 		rc = qed_hw_set_soft_resc_size(p_hwfn, p_ptt);
2549 		if (rc && rc != -EINVAL) {
2550 			DP_NOTICE(p_hwfn,
2551 				  "Failed to set the max values of the soft resources\n");
2552 			goto unlock_and_exit;
2553 		} else if (rc == -EINVAL) {
2554 			DP_INFO(p_hwfn,
2555 				"Skip the max values setting of the soft resources since it is not supported by the MFW\n");
2556 			rc = qed_mcp_resc_unlock(p_hwfn, p_ptt,
2557 						 &resc_unlock_params);
2558 			if (rc)
2559 				DP_INFO(p_hwfn,
2560 					"Failed to release the resource lock for the resource allocation commands\n");
2561 		}
2562 	}
2563 
2564 	rc = qed_hw_set_resc_info(p_hwfn);
2565 	if (rc)
2566 		goto unlock_and_exit;
2567 
2568 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released) {
2569 		rc = qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
2570 		if (rc)
2571 			DP_INFO(p_hwfn,
2572 				"Failed to release the resource lock for the resource allocation commands\n");
2573 	}
2574 
2575 	/* Sanity for ILT */
2576 	if ((b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_K2)) ||
2577 	    (!b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_BB))) {
2578 		DP_NOTICE(p_hwfn, "Can't assign ILT pages [%08x,...,%08x]\n",
2579 			  RESC_START(p_hwfn, QED_ILT),
2580 			  RESC_END(p_hwfn, QED_ILT) - 1);
2581 		return -EINVAL;
2582 	}
2583 
2584 	/* This will also learn the number of SBs from MFW */
2585 	if (qed_int_igu_reset_cam(p_hwfn, p_ptt))
2586 		return -EINVAL;
2587 
2588 	qed_hw_set_feat(p_hwfn);
2589 
2590 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++)
2591 		DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE, "%s = %d start = %d\n",
2592 			   qed_hw_get_resc_name(res_id),
2593 			   RESC_NUM(p_hwfn, res_id),
2594 			   RESC_START(p_hwfn, res_id));
2595 
2596 	return 0;
2597 
2598 unlock_and_exit:
2599 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released)
2600 		qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
2601 	return rc;
2602 }
2603 
qed_hw_get_nvm_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2604 static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2605 {
2606 	u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities;
2607 	u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
2608 	struct qed_mcp_link_capabilities *p_caps;
2609 	struct qed_mcp_link_params *link;
2610 
2611 	/* Read global nvm_cfg address */
2612 	nvm_cfg_addr = qed_rd(p_hwfn, p_ptt, MISC_REG_GEN_PURP_CR0);
2613 
2614 	/* Verify MCP has initialized it */
2615 	if (!nvm_cfg_addr) {
2616 		DP_NOTICE(p_hwfn, "Shared memory not initialized\n");
2617 		return -EINVAL;
2618 	}
2619 
2620 	/* Read nvm_cfg1  (Notice this is just offset, and not offsize (TBD) */
2621 	nvm_cfg1_offset = qed_rd(p_hwfn, p_ptt, nvm_cfg_addr + 4);
2622 
2623 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
2624 	       offsetof(struct nvm_cfg1, glob) +
2625 	       offsetof(struct nvm_cfg1_glob, core_cfg);
2626 
2627 	core_cfg = qed_rd(p_hwfn, p_ptt, addr);
2628 
2629 	switch ((core_cfg & NVM_CFG1_GLOB_NETWORK_PORT_MODE_MASK) >>
2630 		NVM_CFG1_GLOB_NETWORK_PORT_MODE_OFFSET) {
2631 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_2X40G:
2632 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X40G;
2633 		break;
2634 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X50G:
2635 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X50G;
2636 		break;
2637 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_1X100G:
2638 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X100G;
2639 		break;
2640 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X10G_F:
2641 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X10G_F;
2642 		break;
2643 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X10G_E:
2644 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X10G_E;
2645 		break;
2646 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X20G:
2647 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X20G;
2648 		break;
2649 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X40G:
2650 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X40G;
2651 		break;
2652 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X25G:
2653 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X25G;
2654 		break;
2655 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X10G:
2656 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_2X10G;
2657 		break;
2658 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X25G:
2659 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_1X25G;
2660 		break;
2661 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X25G:
2662 		p_hwfn->hw_info.port_mode = QED_PORT_MODE_DE_4X25G;
2663 		break;
2664 	default:
2665 		DP_NOTICE(p_hwfn, "Unknown port mode in 0x%08x\n", core_cfg);
2666 		break;
2667 	}
2668 
2669 	/* Read default link configuration */
2670 	link = &p_hwfn->mcp_info->link_input;
2671 	p_caps = &p_hwfn->mcp_info->link_capabilities;
2672 	port_cfg_addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
2673 			offsetof(struct nvm_cfg1, port[MFW_PORT(p_hwfn)]);
2674 	link_temp = qed_rd(p_hwfn, p_ptt,
2675 			   port_cfg_addr +
2676 			   offsetof(struct nvm_cfg1_port, speed_cap_mask));
2677 	link_temp &= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_MASK;
2678 	link->speed.advertised_speeds = link_temp;
2679 
2680 	link_temp = link->speed.advertised_speeds;
2681 	p_hwfn->mcp_info->link_capabilities.speed_capabilities = link_temp;
2682 
2683 	link_temp = qed_rd(p_hwfn, p_ptt,
2684 			   port_cfg_addr +
2685 			   offsetof(struct nvm_cfg1_port, link_settings));
2686 	switch ((link_temp & NVM_CFG1_PORT_DRV_LINK_SPEED_MASK) >>
2687 		NVM_CFG1_PORT_DRV_LINK_SPEED_OFFSET) {
2688 	case NVM_CFG1_PORT_DRV_LINK_SPEED_AUTONEG:
2689 		link->speed.autoneg = true;
2690 		break;
2691 	case NVM_CFG1_PORT_DRV_LINK_SPEED_1G:
2692 		link->speed.forced_speed = 1000;
2693 		break;
2694 	case NVM_CFG1_PORT_DRV_LINK_SPEED_10G:
2695 		link->speed.forced_speed = 10000;
2696 		break;
2697 	case NVM_CFG1_PORT_DRV_LINK_SPEED_25G:
2698 		link->speed.forced_speed = 25000;
2699 		break;
2700 	case NVM_CFG1_PORT_DRV_LINK_SPEED_40G:
2701 		link->speed.forced_speed = 40000;
2702 		break;
2703 	case NVM_CFG1_PORT_DRV_LINK_SPEED_50G:
2704 		link->speed.forced_speed = 50000;
2705 		break;
2706 	case NVM_CFG1_PORT_DRV_LINK_SPEED_BB_100G:
2707 		link->speed.forced_speed = 100000;
2708 		break;
2709 	default:
2710 		DP_NOTICE(p_hwfn, "Unknown Speed in 0x%08x\n", link_temp);
2711 	}
2712 
2713 	p_hwfn->mcp_info->link_capabilities.default_speed_autoneg =
2714 		link->speed.autoneg;
2715 
2716 	link_temp &= NVM_CFG1_PORT_DRV_FLOW_CONTROL_MASK;
2717 	link_temp >>= NVM_CFG1_PORT_DRV_FLOW_CONTROL_OFFSET;
2718 	link->pause.autoneg = !!(link_temp &
2719 				 NVM_CFG1_PORT_DRV_FLOW_CONTROL_AUTONEG);
2720 	link->pause.forced_rx = !!(link_temp &
2721 				   NVM_CFG1_PORT_DRV_FLOW_CONTROL_RX);
2722 	link->pause.forced_tx = !!(link_temp &
2723 				   NVM_CFG1_PORT_DRV_FLOW_CONTROL_TX);
2724 	link->loopback_mode = 0;
2725 
2726 	if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE) {
2727 		link_temp = qed_rd(p_hwfn, p_ptt, port_cfg_addr +
2728 				   offsetof(struct nvm_cfg1_port, ext_phy));
2729 		link_temp &= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_MASK;
2730 		link_temp >>= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_OFFSET;
2731 		p_caps->default_eee = QED_MCP_EEE_ENABLED;
2732 		link->eee.enable = true;
2733 		switch (link_temp) {
2734 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_DISABLED:
2735 			p_caps->default_eee = QED_MCP_EEE_DISABLED;
2736 			link->eee.enable = false;
2737 			break;
2738 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_BALANCED:
2739 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_BALANCED_TIME;
2740 			break;
2741 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_AGGRESSIVE:
2742 			p_caps->eee_lpi_timer =
2743 			    EEE_TX_TIMER_USEC_AGGRESSIVE_TIME;
2744 			break;
2745 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_LOW_LATENCY:
2746 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_LATENCY_TIME;
2747 			break;
2748 		}
2749 
2750 		link->eee.tx_lpi_timer = p_caps->eee_lpi_timer;
2751 		link->eee.tx_lpi_enable = link->eee.enable;
2752 		link->eee.adv_caps = QED_EEE_1G_ADV | QED_EEE_10G_ADV;
2753 	} else {
2754 		p_caps->default_eee = QED_MCP_EEE_UNSUPPORTED;
2755 	}
2756 
2757 	DP_VERBOSE(p_hwfn,
2758 		   NETIF_MSG_LINK,
2759 		   "Read default link: Speed 0x%08x, Adv. Speed 0x%08x, AN: 0x%02x, PAUSE AN: 0x%02x EEE: %02x [%08x usec]\n",
2760 		   link->speed.forced_speed,
2761 		   link->speed.advertised_speeds,
2762 		   link->speed.autoneg,
2763 		   link->pause.autoneg,
2764 		   p_caps->default_eee, p_caps->eee_lpi_timer);
2765 
2766 	if (IS_LEAD_HWFN(p_hwfn)) {
2767 		struct qed_dev *cdev = p_hwfn->cdev;
2768 
2769 		/* Read Multi-function information from shmem */
2770 		addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
2771 		       offsetof(struct nvm_cfg1, glob) +
2772 		       offsetof(struct nvm_cfg1_glob, generic_cont0);
2773 
2774 		generic_cont0 = qed_rd(p_hwfn, p_ptt, addr);
2775 
2776 		mf_mode = (generic_cont0 & NVM_CFG1_GLOB_MF_MODE_MASK) >>
2777 			  NVM_CFG1_GLOB_MF_MODE_OFFSET;
2778 
2779 		switch (mf_mode) {
2780 		case NVM_CFG1_GLOB_MF_MODE_MF_ALLOWED:
2781 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS);
2782 			break;
2783 		case NVM_CFG1_GLOB_MF_MODE_UFP:
2784 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
2785 					BIT(QED_MF_LLH_PROTO_CLSS) |
2786 					BIT(QED_MF_UFP_SPECIFIC) |
2787 					BIT(QED_MF_8021Q_TAGGING);
2788 			break;
2789 		case NVM_CFG1_GLOB_MF_MODE_BD:
2790 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
2791 					BIT(QED_MF_LLH_PROTO_CLSS) |
2792 					BIT(QED_MF_8021AD_TAGGING);
2793 			break;
2794 		case NVM_CFG1_GLOB_MF_MODE_NPAR1_0:
2795 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
2796 					BIT(QED_MF_LLH_PROTO_CLSS) |
2797 					BIT(QED_MF_LL2_NON_UNICAST) |
2798 					BIT(QED_MF_INTER_PF_SWITCH);
2799 			break;
2800 		case NVM_CFG1_GLOB_MF_MODE_DEFAULT:
2801 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
2802 					BIT(QED_MF_LLH_PROTO_CLSS) |
2803 					BIT(QED_MF_LL2_NON_UNICAST);
2804 			if (QED_IS_BB(p_hwfn->cdev))
2805 				cdev->mf_bits |= BIT(QED_MF_NEED_DEF_PF);
2806 			break;
2807 		}
2808 
2809 		DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
2810 			cdev->mf_bits);
2811 	}
2812 
2813 	DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
2814 		p_hwfn->cdev->mf_bits);
2815 
2816 	/* Read device capabilities information from shmem */
2817 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
2818 		offsetof(struct nvm_cfg1, glob) +
2819 		offsetof(struct nvm_cfg1_glob, device_capabilities);
2820 
2821 	device_capabilities = qed_rd(p_hwfn, p_ptt, addr);
2822 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
2823 		__set_bit(QED_DEV_CAP_ETH,
2824 			  &p_hwfn->hw_info.device_capabilities);
2825 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
2826 		__set_bit(QED_DEV_CAP_FCOE,
2827 			  &p_hwfn->hw_info.device_capabilities);
2828 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
2829 		__set_bit(QED_DEV_CAP_ISCSI,
2830 			  &p_hwfn->hw_info.device_capabilities);
2831 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE)
2832 		__set_bit(QED_DEV_CAP_ROCE,
2833 			  &p_hwfn->hw_info.device_capabilities);
2834 
2835 	return qed_mcp_fill_shmem_func_info(p_hwfn, p_ptt);
2836 }
2837 
qed_get_num_funcs(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2838 static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2839 {
2840 	u8 num_funcs, enabled_func_idx = p_hwfn->rel_pf_id;
2841 	u32 reg_function_hide, tmp, eng_mask, low_pfs_mask;
2842 	struct qed_dev *cdev = p_hwfn->cdev;
2843 
2844 	num_funcs = QED_IS_AH(cdev) ? MAX_NUM_PFS_K2 : MAX_NUM_PFS_BB;
2845 
2846 	/* Bit 0 of MISCS_REG_FUNCTION_HIDE indicates whether the bypass values
2847 	 * in the other bits are selected.
2848 	 * Bits 1-15 are for functions 1-15, respectively, and their value is
2849 	 * '0' only for enabled functions (function 0 always exists and
2850 	 * enabled).
2851 	 * In case of CMT, only the "even" functions are enabled, and thus the
2852 	 * number of functions for both hwfns is learnt from the same bits.
2853 	 */
2854 	reg_function_hide = qed_rd(p_hwfn, p_ptt, MISCS_REG_FUNCTION_HIDE);
2855 
2856 	if (reg_function_hide & 0x1) {
2857 		if (QED_IS_BB(cdev)) {
2858 			if (QED_PATH_ID(p_hwfn) && cdev->num_hwfns == 1) {
2859 				num_funcs = 0;
2860 				eng_mask = 0xaaaa;
2861 			} else {
2862 				num_funcs = 1;
2863 				eng_mask = 0x5554;
2864 			}
2865 		} else {
2866 			num_funcs = 1;
2867 			eng_mask = 0xfffe;
2868 		}
2869 
2870 		/* Get the number of the enabled functions on the engine */
2871 		tmp = (reg_function_hide ^ 0xffffffff) & eng_mask;
2872 		while (tmp) {
2873 			if (tmp & 0x1)
2874 				num_funcs++;
2875 			tmp >>= 0x1;
2876 		}
2877 
2878 		/* Get the PF index within the enabled functions */
2879 		low_pfs_mask = (0x1 << p_hwfn->abs_pf_id) - 1;
2880 		tmp = reg_function_hide & eng_mask & low_pfs_mask;
2881 		while (tmp) {
2882 			if (tmp & 0x1)
2883 				enabled_func_idx--;
2884 			tmp >>= 0x1;
2885 		}
2886 	}
2887 
2888 	p_hwfn->num_funcs_on_engine = num_funcs;
2889 	p_hwfn->enabled_func_idx = enabled_func_idx;
2890 
2891 	DP_VERBOSE(p_hwfn,
2892 		   NETIF_MSG_PROBE,
2893 		   "PF [rel_id %d, abs_id %d] occupies index %d within the %d enabled functions on the engine\n",
2894 		   p_hwfn->rel_pf_id,
2895 		   p_hwfn->abs_pf_id,
2896 		   p_hwfn->enabled_func_idx, p_hwfn->num_funcs_on_engine);
2897 }
2898 
qed_hw_info_port_num_bb(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2899 static void qed_hw_info_port_num_bb(struct qed_hwfn *p_hwfn,
2900 				    struct qed_ptt *p_ptt)
2901 {
2902 	u32 port_mode;
2903 
2904 	port_mode = qed_rd(p_hwfn, p_ptt, CNIG_REG_NW_PORT_MODE_BB);
2905 
2906 	if (port_mode < 3) {
2907 		p_hwfn->cdev->num_ports_in_engine = 1;
2908 	} else if (port_mode <= 5) {
2909 		p_hwfn->cdev->num_ports_in_engine = 2;
2910 	} else {
2911 		DP_NOTICE(p_hwfn, "PORT MODE: %d not supported\n",
2912 			  p_hwfn->cdev->num_ports_in_engine);
2913 
2914 		/* Default num_ports_in_engine to something */
2915 		p_hwfn->cdev->num_ports_in_engine = 1;
2916 	}
2917 }
2918 
qed_hw_info_port_num_ah(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2919 static void qed_hw_info_port_num_ah(struct qed_hwfn *p_hwfn,
2920 				    struct qed_ptt *p_ptt)
2921 {
2922 	u32 port;
2923 	int i;
2924 
2925 	p_hwfn->cdev->num_ports_in_engine = 0;
2926 
2927 	for (i = 0; i < MAX_NUM_PORTS_K2; i++) {
2928 		port = qed_rd(p_hwfn, p_ptt,
2929 			      CNIG_REG_NIG_PORT0_CONF_K2 + (i * 4));
2930 		if (port & 1)
2931 			p_hwfn->cdev->num_ports_in_engine++;
2932 	}
2933 
2934 	if (!p_hwfn->cdev->num_ports_in_engine) {
2935 		DP_NOTICE(p_hwfn, "All NIG ports are inactive\n");
2936 
2937 		/* Default num_ports_in_engine to something */
2938 		p_hwfn->cdev->num_ports_in_engine = 1;
2939 	}
2940 }
2941 
qed_hw_info_port_num(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2942 static void qed_hw_info_port_num(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2943 {
2944 	if (QED_IS_BB(p_hwfn->cdev))
2945 		qed_hw_info_port_num_bb(p_hwfn, p_ptt);
2946 	else
2947 		qed_hw_info_port_num_ah(p_hwfn, p_ptt);
2948 }
2949 
qed_get_eee_caps(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2950 static void qed_get_eee_caps(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2951 {
2952 	struct qed_mcp_link_capabilities *p_caps;
2953 	u32 eee_status;
2954 
2955 	p_caps = &p_hwfn->mcp_info->link_capabilities;
2956 	if (p_caps->default_eee == QED_MCP_EEE_UNSUPPORTED)
2957 		return;
2958 
2959 	p_caps->eee_speed_caps = 0;
2960 	eee_status = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
2961 			    offsetof(struct public_port, eee_status));
2962 	eee_status = (eee_status & EEE_SUPPORTED_SPEED_MASK) >>
2963 			EEE_SUPPORTED_SPEED_OFFSET;
2964 
2965 	if (eee_status & EEE_1G_SUPPORTED)
2966 		p_caps->eee_speed_caps |= QED_EEE_1G_ADV;
2967 	if (eee_status & EEE_10G_ADV)
2968 		p_caps->eee_speed_caps |= QED_EEE_10G_ADV;
2969 }
2970 
2971 static int
qed_get_hw_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum qed_pci_personality personality)2972 qed_get_hw_info(struct qed_hwfn *p_hwfn,
2973 		struct qed_ptt *p_ptt,
2974 		enum qed_pci_personality personality)
2975 {
2976 	int rc;
2977 
2978 	/* Since all information is common, only first hwfns should do this */
2979 	if (IS_LEAD_HWFN(p_hwfn)) {
2980 		rc = qed_iov_hw_info(p_hwfn);
2981 		if (rc)
2982 			return rc;
2983 	}
2984 
2985 	qed_hw_info_port_num(p_hwfn, p_ptt);
2986 
2987 	qed_mcp_get_capabilities(p_hwfn, p_ptt);
2988 
2989 	qed_hw_get_nvm_info(p_hwfn, p_ptt);
2990 
2991 	rc = qed_int_igu_read_cam(p_hwfn, p_ptt);
2992 	if (rc)
2993 		return rc;
2994 
2995 	if (qed_mcp_is_init(p_hwfn))
2996 		ether_addr_copy(p_hwfn->hw_info.hw_mac_addr,
2997 				p_hwfn->mcp_info->func_info.mac);
2998 	else
2999 		eth_random_addr(p_hwfn->hw_info.hw_mac_addr);
3000 
3001 	if (qed_mcp_is_init(p_hwfn)) {
3002 		if (p_hwfn->mcp_info->func_info.ovlan != QED_MCP_VLAN_UNSET)
3003 			p_hwfn->hw_info.ovlan =
3004 				p_hwfn->mcp_info->func_info.ovlan;
3005 
3006 		qed_mcp_cmd_port_init(p_hwfn, p_ptt);
3007 
3008 		qed_get_eee_caps(p_hwfn, p_ptt);
3009 
3010 		qed_mcp_read_ufp_config(p_hwfn, p_ptt);
3011 	}
3012 
3013 	if (qed_mcp_is_init(p_hwfn)) {
3014 		enum qed_pci_personality protocol;
3015 
3016 		protocol = p_hwfn->mcp_info->func_info.protocol;
3017 		p_hwfn->hw_info.personality = protocol;
3018 	}
3019 
3020 	if (QED_IS_ROCE_PERSONALITY(p_hwfn))
3021 		p_hwfn->hw_info.multi_tc_roce_en = 1;
3022 
3023 	p_hwfn->hw_info.num_hw_tc = NUM_PHYS_TCS_4PORT_K2;
3024 	p_hwfn->hw_info.num_active_tc = 1;
3025 
3026 	qed_get_num_funcs(p_hwfn, p_ptt);
3027 
3028 	if (qed_mcp_is_init(p_hwfn))
3029 		p_hwfn->hw_info.mtu = p_hwfn->mcp_info->func_info.mtu;
3030 
3031 	return qed_hw_get_resc(p_hwfn, p_ptt);
3032 }
3033 
qed_get_dev_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3034 static int qed_get_dev_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3035 {
3036 	struct qed_dev *cdev = p_hwfn->cdev;
3037 	u16 device_id_mask;
3038 	u32 tmp;
3039 
3040 	/* Read Vendor Id / Device Id */
3041 	pci_read_config_word(cdev->pdev, PCI_VENDOR_ID, &cdev->vendor_id);
3042 	pci_read_config_word(cdev->pdev, PCI_DEVICE_ID, &cdev->device_id);
3043 
3044 	/* Determine type */
3045 	device_id_mask = cdev->device_id & QED_DEV_ID_MASK;
3046 	switch (device_id_mask) {
3047 	case QED_DEV_ID_MASK_BB:
3048 		cdev->type = QED_DEV_TYPE_BB;
3049 		break;
3050 	case QED_DEV_ID_MASK_AH:
3051 		cdev->type = QED_DEV_TYPE_AH;
3052 		break;
3053 	default:
3054 		DP_NOTICE(p_hwfn, "Unknown device id 0x%x\n", cdev->device_id);
3055 		return -EBUSY;
3056 	}
3057 
3058 	cdev->chip_num = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_NUM);
3059 	cdev->chip_rev = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_REV);
3060 
3061 	MASK_FIELD(CHIP_REV, cdev->chip_rev);
3062 
3063 	/* Learn number of HW-functions */
3064 	tmp = qed_rd(p_hwfn, p_ptt, MISCS_REG_CMT_ENABLED_FOR_PAIR);
3065 
3066 	if (tmp & (1 << p_hwfn->rel_pf_id)) {
3067 		DP_NOTICE(cdev->hwfns, "device in CMT mode\n");
3068 		cdev->num_hwfns = 2;
3069 	} else {
3070 		cdev->num_hwfns = 1;
3071 	}
3072 
3073 	cdev->chip_bond_id = qed_rd(p_hwfn, p_ptt,
3074 				    MISCS_REG_CHIP_TEST_REG) >> 4;
3075 	MASK_FIELD(CHIP_BOND_ID, cdev->chip_bond_id);
3076 	cdev->chip_metal = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_METAL);
3077 	MASK_FIELD(CHIP_METAL, cdev->chip_metal);
3078 
3079 	DP_INFO(cdev->hwfns,
3080 		"Chip details - %s %c%d, Num: %04x Rev: %04x Bond id: %04x Metal: %04x\n",
3081 		QED_IS_BB(cdev) ? "BB" : "AH",
3082 		'A' + cdev->chip_rev,
3083 		(int)cdev->chip_metal,
3084 		cdev->chip_num, cdev->chip_rev,
3085 		cdev->chip_bond_id, cdev->chip_metal);
3086 
3087 	return 0;
3088 }
3089 
qed_nvm_info_free(struct qed_hwfn * p_hwfn)3090 static void qed_nvm_info_free(struct qed_hwfn *p_hwfn)
3091 {
3092 	kfree(p_hwfn->nvm_info.image_att);
3093 	p_hwfn->nvm_info.image_att = NULL;
3094 }
3095 
qed_hw_prepare_single(struct qed_hwfn * p_hwfn,void __iomem * p_regview,void __iomem * p_doorbells,u64 db_phys_addr,enum qed_pci_personality personality)3096 static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
3097 				 void __iomem *p_regview,
3098 				 void __iomem *p_doorbells,
3099 				 u64 db_phys_addr,
3100 				 enum qed_pci_personality personality)
3101 {
3102 	int rc = 0;
3103 
3104 	/* Split PCI bars evenly between hwfns */
3105 	p_hwfn->regview = p_regview;
3106 	p_hwfn->doorbells = p_doorbells;
3107 	p_hwfn->db_phys_addr = db_phys_addr;
3108 
3109 	if (IS_VF(p_hwfn->cdev))
3110 		return qed_vf_hw_prepare(p_hwfn);
3111 
3112 	/* Validate that chip access is feasible */
3113 	if (REG_RD(p_hwfn, PXP_PF_ME_OPAQUE_ADDR) == 0xffffffff) {
3114 		DP_ERR(p_hwfn,
3115 		       "Reading the ME register returns all Fs; Preventing further chip access\n");
3116 		return -EINVAL;
3117 	}
3118 
3119 	get_function_id(p_hwfn);
3120 
3121 	/* Allocate PTT pool */
3122 	rc = qed_ptt_pool_alloc(p_hwfn);
3123 	if (rc)
3124 		goto err0;
3125 
3126 	/* Allocate the main PTT */
3127 	p_hwfn->p_main_ptt = qed_get_reserved_ptt(p_hwfn, RESERVED_PTT_MAIN);
3128 
3129 	/* First hwfn learns basic information, e.g., number of hwfns */
3130 	if (!p_hwfn->my_id) {
3131 		rc = qed_get_dev_info(p_hwfn, p_hwfn->p_main_ptt);
3132 		if (rc)
3133 			goto err1;
3134 	}
3135 
3136 	qed_hw_hwfn_prepare(p_hwfn);
3137 
3138 	/* Initialize MCP structure */
3139 	rc = qed_mcp_cmd_init(p_hwfn, p_hwfn->p_main_ptt);
3140 	if (rc) {
3141 		DP_NOTICE(p_hwfn, "Failed initializing mcp command\n");
3142 		goto err1;
3143 	}
3144 
3145 	/* Read the device configuration information from the HW and SHMEM */
3146 	rc = qed_get_hw_info(p_hwfn, p_hwfn->p_main_ptt, personality);
3147 	if (rc) {
3148 		DP_NOTICE(p_hwfn, "Failed to get HW information\n");
3149 		goto err2;
3150 	}
3151 
3152 	/* Sending a mailbox to the MFW should be done after qed_get_hw_info()
3153 	 * is called as it sets the ports number in an engine.
3154 	 */
3155 	if (IS_LEAD_HWFN(p_hwfn)) {
3156 		rc = qed_mcp_initiate_pf_flr(p_hwfn, p_hwfn->p_main_ptt);
3157 		if (rc)
3158 			DP_NOTICE(p_hwfn, "Failed to initiate PF FLR\n");
3159 	}
3160 
3161 	/* NVRAM info initialization and population */
3162 	if (IS_LEAD_HWFN(p_hwfn)) {
3163 		rc = qed_mcp_nvm_info_populate(p_hwfn);
3164 		if (rc) {
3165 			DP_NOTICE(p_hwfn,
3166 				  "Failed to populate nvm info shadow\n");
3167 			goto err2;
3168 		}
3169 	}
3170 
3171 	/* Allocate the init RT array and initialize the init-ops engine */
3172 	rc = qed_init_alloc(p_hwfn);
3173 	if (rc)
3174 		goto err3;
3175 
3176 	return rc;
3177 err3:
3178 	if (IS_LEAD_HWFN(p_hwfn))
3179 		qed_nvm_info_free(p_hwfn);
3180 err2:
3181 	if (IS_LEAD_HWFN(p_hwfn))
3182 		qed_iov_free_hw_info(p_hwfn->cdev);
3183 	qed_mcp_free(p_hwfn);
3184 err1:
3185 	qed_hw_hwfn_free(p_hwfn);
3186 err0:
3187 	return rc;
3188 }
3189 
qed_hw_prepare(struct qed_dev * cdev,int personality)3190 int qed_hw_prepare(struct qed_dev *cdev,
3191 		   int personality)
3192 {
3193 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
3194 	int rc;
3195 
3196 	/* Store the precompiled init data ptrs */
3197 	if (IS_PF(cdev))
3198 		qed_init_iro_array(cdev);
3199 
3200 	/* Initialize the first hwfn - will learn number of hwfns */
3201 	rc = qed_hw_prepare_single(p_hwfn,
3202 				   cdev->regview,
3203 				   cdev->doorbells,
3204 				   cdev->db_phys_addr,
3205 				   personality);
3206 	if (rc)
3207 		return rc;
3208 
3209 	personality = p_hwfn->hw_info.personality;
3210 
3211 	/* Initialize the rest of the hwfns */
3212 	if (cdev->num_hwfns > 1) {
3213 		void __iomem *p_regview, *p_doorbell;
3214 		u64 db_phys_addr;
3215 		u32 offset;
3216 
3217 		/* adjust bar offset for second engine */
3218 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
3219 					 BAR_ID_0) / 2;
3220 		p_regview = cdev->regview + offset;
3221 
3222 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
3223 					 BAR_ID_1) / 2;
3224 
3225 		p_doorbell = cdev->doorbells + offset;
3226 
3227 		db_phys_addr = cdev->db_phys_addr + offset;
3228 
3229 		/* prepare second hw function */
3230 		rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
3231 					   p_doorbell, db_phys_addr,
3232 					   personality);
3233 
3234 		/* in case of error, need to free the previously
3235 		 * initiliazed hwfn 0.
3236 		 */
3237 		if (rc) {
3238 			if (IS_PF(cdev)) {
3239 				qed_init_free(p_hwfn);
3240 				qed_nvm_info_free(p_hwfn);
3241 				qed_mcp_free(p_hwfn);
3242 				qed_hw_hwfn_free(p_hwfn);
3243 			}
3244 		}
3245 	}
3246 
3247 	return rc;
3248 }
3249 
qed_hw_remove(struct qed_dev * cdev)3250 void qed_hw_remove(struct qed_dev *cdev)
3251 {
3252 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
3253 	int i;
3254 
3255 	if (IS_PF(cdev))
3256 		qed_mcp_ov_update_driver_state(p_hwfn, p_hwfn->p_main_ptt,
3257 					       QED_OV_DRIVER_STATE_NOT_LOADED);
3258 
3259 	for_each_hwfn(cdev, i) {
3260 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
3261 
3262 		if (IS_VF(cdev)) {
3263 			qed_vf_pf_release(p_hwfn);
3264 			continue;
3265 		}
3266 
3267 		qed_init_free(p_hwfn);
3268 		qed_hw_hwfn_free(p_hwfn);
3269 		qed_mcp_free(p_hwfn);
3270 	}
3271 
3272 	qed_iov_free_hw_info(cdev);
3273 
3274 	qed_nvm_info_free(p_hwfn);
3275 }
3276 
qed_chain_free_next_ptr(struct qed_dev * cdev,struct qed_chain * p_chain)3277 static void qed_chain_free_next_ptr(struct qed_dev *cdev,
3278 				    struct qed_chain *p_chain)
3279 {
3280 	void *p_virt = p_chain->p_virt_addr, *p_virt_next = NULL;
3281 	dma_addr_t p_phys = p_chain->p_phys_addr, p_phys_next = 0;
3282 	struct qed_chain_next *p_next;
3283 	u32 size, i;
3284 
3285 	if (!p_virt)
3286 		return;
3287 
3288 	size = p_chain->elem_size * p_chain->usable_per_page;
3289 
3290 	for (i = 0; i < p_chain->page_cnt; i++) {
3291 		if (!p_virt)
3292 			break;
3293 
3294 		p_next = (struct qed_chain_next *)((u8 *)p_virt + size);
3295 		p_virt_next = p_next->next_virt;
3296 		p_phys_next = HILO_DMA_REGPAIR(p_next->next_phys);
3297 
3298 		dma_free_coherent(&cdev->pdev->dev,
3299 				  QED_CHAIN_PAGE_SIZE, p_virt, p_phys);
3300 
3301 		p_virt = p_virt_next;
3302 		p_phys = p_phys_next;
3303 	}
3304 }
3305 
qed_chain_free_single(struct qed_dev * cdev,struct qed_chain * p_chain)3306 static void qed_chain_free_single(struct qed_dev *cdev,
3307 				  struct qed_chain *p_chain)
3308 {
3309 	if (!p_chain->p_virt_addr)
3310 		return;
3311 
3312 	dma_free_coherent(&cdev->pdev->dev,
3313 			  QED_CHAIN_PAGE_SIZE,
3314 			  p_chain->p_virt_addr, p_chain->p_phys_addr);
3315 }
3316 
qed_chain_free_pbl(struct qed_dev * cdev,struct qed_chain * p_chain)3317 static void qed_chain_free_pbl(struct qed_dev *cdev, struct qed_chain *p_chain)
3318 {
3319 	struct addr_tbl_entry *pp_addr_tbl = p_chain->pbl.pp_addr_tbl;
3320 	u32 page_cnt = p_chain->page_cnt, i, pbl_size;
3321 
3322 	if (!pp_addr_tbl)
3323 		return;
3324 
3325 	for (i = 0; i < page_cnt; i++) {
3326 		if (!pp_addr_tbl[i].virt_addr || !pp_addr_tbl[i].dma_map)
3327 			break;
3328 
3329 		dma_free_coherent(&cdev->pdev->dev,
3330 				  QED_CHAIN_PAGE_SIZE,
3331 				  pp_addr_tbl[i].virt_addr,
3332 				  pp_addr_tbl[i].dma_map);
3333 	}
3334 
3335 	pbl_size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE;
3336 
3337 	if (!p_chain->b_external_pbl)
3338 		dma_free_coherent(&cdev->pdev->dev,
3339 				  pbl_size,
3340 				  p_chain->pbl_sp.p_virt_table,
3341 				  p_chain->pbl_sp.p_phys_table);
3342 
3343 	vfree(p_chain->pbl.pp_addr_tbl);
3344 	p_chain->pbl.pp_addr_tbl = NULL;
3345 }
3346 
qed_chain_free(struct qed_dev * cdev,struct qed_chain * p_chain)3347 void qed_chain_free(struct qed_dev *cdev, struct qed_chain *p_chain)
3348 {
3349 	switch (p_chain->mode) {
3350 	case QED_CHAIN_MODE_NEXT_PTR:
3351 		qed_chain_free_next_ptr(cdev, p_chain);
3352 		break;
3353 	case QED_CHAIN_MODE_SINGLE:
3354 		qed_chain_free_single(cdev, p_chain);
3355 		break;
3356 	case QED_CHAIN_MODE_PBL:
3357 		qed_chain_free_pbl(cdev, p_chain);
3358 		break;
3359 	}
3360 }
3361 
3362 static int
qed_chain_alloc_sanity_check(struct qed_dev * cdev,enum qed_chain_cnt_type cnt_type,size_t elem_size,u32 page_cnt)3363 qed_chain_alloc_sanity_check(struct qed_dev *cdev,
3364 			     enum qed_chain_cnt_type cnt_type,
3365 			     size_t elem_size, u32 page_cnt)
3366 {
3367 	u64 chain_size = ELEMS_PER_PAGE(elem_size) * page_cnt;
3368 
3369 	/* The actual chain size can be larger than the maximal possible value
3370 	 * after rounding up the requested elements number to pages, and after
3371 	 * taking into acount the unusuable elements (next-ptr elements).
3372 	 * The size of a "u16" chain can be (U16_MAX + 1) since the chain
3373 	 * size/capacity fields are of a u32 type.
3374 	 */
3375 	if ((cnt_type == QED_CHAIN_CNT_TYPE_U16 &&
3376 	     chain_size > ((u32)U16_MAX + 1)) ||
3377 	    (cnt_type == QED_CHAIN_CNT_TYPE_U32 && chain_size > U32_MAX)) {
3378 		DP_NOTICE(cdev,
3379 			  "The actual chain size (0x%llx) is larger than the maximal possible value\n",
3380 			  chain_size);
3381 		return -EINVAL;
3382 	}
3383 
3384 	return 0;
3385 }
3386 
3387 static int
qed_chain_alloc_next_ptr(struct qed_dev * cdev,struct qed_chain * p_chain)3388 qed_chain_alloc_next_ptr(struct qed_dev *cdev, struct qed_chain *p_chain)
3389 {
3390 	void *p_virt = NULL, *p_virt_prev = NULL;
3391 	dma_addr_t p_phys = 0;
3392 	u32 i;
3393 
3394 	for (i = 0; i < p_chain->page_cnt; i++) {
3395 		p_virt = dma_alloc_coherent(&cdev->pdev->dev,
3396 					    QED_CHAIN_PAGE_SIZE,
3397 					    &p_phys, GFP_KERNEL);
3398 		if (!p_virt)
3399 			return -ENOMEM;
3400 
3401 		if (i == 0) {
3402 			qed_chain_init_mem(p_chain, p_virt, p_phys);
3403 			qed_chain_reset(p_chain);
3404 		} else {
3405 			qed_chain_init_next_ptr_elem(p_chain, p_virt_prev,
3406 						     p_virt, p_phys);
3407 		}
3408 
3409 		p_virt_prev = p_virt;
3410 	}
3411 	/* Last page's next element should point to the beginning of the
3412 	 * chain.
3413 	 */
3414 	qed_chain_init_next_ptr_elem(p_chain, p_virt_prev,
3415 				     p_chain->p_virt_addr,
3416 				     p_chain->p_phys_addr);
3417 
3418 	return 0;
3419 }
3420 
3421 static int
qed_chain_alloc_single(struct qed_dev * cdev,struct qed_chain * p_chain)3422 qed_chain_alloc_single(struct qed_dev *cdev, struct qed_chain *p_chain)
3423 {
3424 	dma_addr_t p_phys = 0;
3425 	void *p_virt = NULL;
3426 
3427 	p_virt = dma_alloc_coherent(&cdev->pdev->dev,
3428 				    QED_CHAIN_PAGE_SIZE, &p_phys, GFP_KERNEL);
3429 	if (!p_virt)
3430 		return -ENOMEM;
3431 
3432 	qed_chain_init_mem(p_chain, p_virt, p_phys);
3433 	qed_chain_reset(p_chain);
3434 
3435 	return 0;
3436 }
3437 
3438 static int
qed_chain_alloc_pbl(struct qed_dev * cdev,struct qed_chain * p_chain,struct qed_chain_ext_pbl * ext_pbl)3439 qed_chain_alloc_pbl(struct qed_dev *cdev,
3440 		    struct qed_chain *p_chain,
3441 		    struct qed_chain_ext_pbl *ext_pbl)
3442 {
3443 	u32 page_cnt = p_chain->page_cnt, size, i;
3444 	dma_addr_t p_phys = 0, p_pbl_phys = 0;
3445 	struct addr_tbl_entry *pp_addr_tbl;
3446 	u8 *p_pbl_virt = NULL;
3447 	void *p_virt = NULL;
3448 
3449 	size = page_cnt * sizeof(*pp_addr_tbl);
3450 	pp_addr_tbl =  vzalloc(size);
3451 	if (!pp_addr_tbl)
3452 		return -ENOMEM;
3453 
3454 	/* The allocation of the PBL table is done with its full size, since it
3455 	 * is expected to be successive.
3456 	 * qed_chain_init_pbl_mem() is called even in a case of an allocation
3457 	 * failure, since tbl was previously allocated, and it
3458 	 * should be saved to allow its freeing during the error flow.
3459 	 */
3460 	size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE;
3461 
3462 	if (!ext_pbl) {
3463 		p_pbl_virt = dma_alloc_coherent(&cdev->pdev->dev,
3464 						size, &p_pbl_phys, GFP_KERNEL);
3465 	} else {
3466 		p_pbl_virt = ext_pbl->p_pbl_virt;
3467 		p_pbl_phys = ext_pbl->p_pbl_phys;
3468 		p_chain->b_external_pbl = true;
3469 	}
3470 
3471 	qed_chain_init_pbl_mem(p_chain, p_pbl_virt, p_pbl_phys, pp_addr_tbl);
3472 	if (!p_pbl_virt)
3473 		return -ENOMEM;
3474 
3475 	for (i = 0; i < page_cnt; i++) {
3476 		p_virt = dma_alloc_coherent(&cdev->pdev->dev,
3477 					    QED_CHAIN_PAGE_SIZE,
3478 					    &p_phys, GFP_KERNEL);
3479 		if (!p_virt)
3480 			return -ENOMEM;
3481 
3482 		if (i == 0) {
3483 			qed_chain_init_mem(p_chain, p_virt, p_phys);
3484 			qed_chain_reset(p_chain);
3485 		}
3486 
3487 		/* Fill the PBL table with the physical address of the page */
3488 		*(dma_addr_t *)p_pbl_virt = p_phys;
3489 		/* Keep the virtual address of the page */
3490 		p_chain->pbl.pp_addr_tbl[i].virt_addr = p_virt;
3491 		p_chain->pbl.pp_addr_tbl[i].dma_map = p_phys;
3492 
3493 		p_pbl_virt += QED_CHAIN_PBL_ENTRY_SIZE;
3494 	}
3495 
3496 	return 0;
3497 }
3498 
qed_chain_alloc(struct qed_dev * cdev,enum qed_chain_use_mode intended_use,enum qed_chain_mode mode,enum qed_chain_cnt_type cnt_type,u32 num_elems,size_t elem_size,struct qed_chain * p_chain,struct qed_chain_ext_pbl * ext_pbl)3499 int qed_chain_alloc(struct qed_dev *cdev,
3500 		    enum qed_chain_use_mode intended_use,
3501 		    enum qed_chain_mode mode,
3502 		    enum qed_chain_cnt_type cnt_type,
3503 		    u32 num_elems,
3504 		    size_t elem_size,
3505 		    struct qed_chain *p_chain,
3506 		    struct qed_chain_ext_pbl *ext_pbl)
3507 {
3508 	u32 page_cnt;
3509 	int rc = 0;
3510 
3511 	if (mode == QED_CHAIN_MODE_SINGLE)
3512 		page_cnt = 1;
3513 	else
3514 		page_cnt = QED_CHAIN_PAGE_CNT(num_elems, elem_size, mode);
3515 
3516 	rc = qed_chain_alloc_sanity_check(cdev, cnt_type, elem_size, page_cnt);
3517 	if (rc) {
3518 		DP_NOTICE(cdev,
3519 			  "Cannot allocate a chain with the given arguments:\n");
3520 		DP_NOTICE(cdev,
3521 			  "[use_mode %d, mode %d, cnt_type %d, num_elems %d, elem_size %zu]\n",
3522 			  intended_use, mode, cnt_type, num_elems, elem_size);
3523 		return rc;
3524 	}
3525 
3526 	qed_chain_init_params(p_chain, page_cnt, (u8) elem_size, intended_use,
3527 			      mode, cnt_type);
3528 
3529 	switch (mode) {
3530 	case QED_CHAIN_MODE_NEXT_PTR:
3531 		rc = qed_chain_alloc_next_ptr(cdev, p_chain);
3532 		break;
3533 	case QED_CHAIN_MODE_SINGLE:
3534 		rc = qed_chain_alloc_single(cdev, p_chain);
3535 		break;
3536 	case QED_CHAIN_MODE_PBL:
3537 		rc = qed_chain_alloc_pbl(cdev, p_chain, ext_pbl);
3538 		break;
3539 	}
3540 	if (rc)
3541 		goto nomem;
3542 
3543 	return 0;
3544 
3545 nomem:
3546 	qed_chain_free(cdev, p_chain);
3547 	return rc;
3548 }
3549 
qed_fw_l2_queue(struct qed_hwfn * p_hwfn,u16 src_id,u16 * dst_id)3550 int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, u16 src_id, u16 *dst_id)
3551 {
3552 	if (src_id >= RESC_NUM(p_hwfn, QED_L2_QUEUE)) {
3553 		u16 min, max;
3554 
3555 		min = (u16) RESC_START(p_hwfn, QED_L2_QUEUE);
3556 		max = min + RESC_NUM(p_hwfn, QED_L2_QUEUE);
3557 		DP_NOTICE(p_hwfn,
3558 			  "l2_queue id [%d] is not valid, available indices [%d - %d]\n",
3559 			  src_id, min, max);
3560 
3561 		return -EINVAL;
3562 	}
3563 
3564 	*dst_id = RESC_START(p_hwfn, QED_L2_QUEUE) + src_id;
3565 
3566 	return 0;
3567 }
3568 
qed_fw_vport(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)3569 int qed_fw_vport(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
3570 {
3571 	if (src_id >= RESC_NUM(p_hwfn, QED_VPORT)) {
3572 		u8 min, max;
3573 
3574 		min = (u8)RESC_START(p_hwfn, QED_VPORT);
3575 		max = min + RESC_NUM(p_hwfn, QED_VPORT);
3576 		DP_NOTICE(p_hwfn,
3577 			  "vport id [%d] is not valid, available indices [%d - %d]\n",
3578 			  src_id, min, max);
3579 
3580 		return -EINVAL;
3581 	}
3582 
3583 	*dst_id = RESC_START(p_hwfn, QED_VPORT) + src_id;
3584 
3585 	return 0;
3586 }
3587 
qed_fw_rss_eng(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)3588 int qed_fw_rss_eng(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
3589 {
3590 	if (src_id >= RESC_NUM(p_hwfn, QED_RSS_ENG)) {
3591 		u8 min, max;
3592 
3593 		min = (u8)RESC_START(p_hwfn, QED_RSS_ENG);
3594 		max = min + RESC_NUM(p_hwfn, QED_RSS_ENG);
3595 		DP_NOTICE(p_hwfn,
3596 			  "rss_eng id [%d] is not valid, available indices [%d - %d]\n",
3597 			  src_id, min, max);
3598 
3599 		return -EINVAL;
3600 	}
3601 
3602 	*dst_id = RESC_START(p_hwfn, QED_RSS_ENG) + src_id;
3603 
3604 	return 0;
3605 }
3606 
qed_llh_mac_to_filter(u32 * p_high,u32 * p_low,u8 * p_filter)3607 static void qed_llh_mac_to_filter(u32 *p_high, u32 *p_low,
3608 				  u8 *p_filter)
3609 {
3610 	*p_high = p_filter[1] | (p_filter[0] << 8);
3611 	*p_low = p_filter[5] | (p_filter[4] << 8) |
3612 		 (p_filter[3] << 16) | (p_filter[2] << 24);
3613 }
3614 
qed_llh_add_mac_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 * p_filter)3615 int qed_llh_add_mac_filter(struct qed_hwfn *p_hwfn,
3616 			   struct qed_ptt *p_ptt, u8 *p_filter)
3617 {
3618 	u32 high = 0, low = 0, en;
3619 	int i;
3620 
3621 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &p_hwfn->cdev->mf_bits))
3622 		return 0;
3623 
3624 	qed_llh_mac_to_filter(&high, &low, p_filter);
3625 
3626 	/* Find a free entry and utilize it */
3627 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
3628 		en = qed_rd(p_hwfn, p_ptt,
3629 			    NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32));
3630 		if (en)
3631 			continue;
3632 		qed_wr(p_hwfn, p_ptt,
3633 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3634 		       2 * i * sizeof(u32), low);
3635 		qed_wr(p_hwfn, p_ptt,
3636 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3637 		       (2 * i + 1) * sizeof(u32), high);
3638 		qed_wr(p_hwfn, p_ptt,
3639 		       NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 0);
3640 		qed_wr(p_hwfn, p_ptt,
3641 		       NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
3642 		       i * sizeof(u32), 0);
3643 		qed_wr(p_hwfn, p_ptt,
3644 		       NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 1);
3645 		break;
3646 	}
3647 	if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
3648 		DP_NOTICE(p_hwfn,
3649 			  "Failed to find an empty LLH filter to utilize\n");
3650 		return -EINVAL;
3651 	}
3652 
3653 	DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3654 		   "mac: %pM is added at %d\n",
3655 		   p_filter, i);
3656 
3657 	return 0;
3658 }
3659 
qed_llh_remove_mac_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 * p_filter)3660 void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
3661 			       struct qed_ptt *p_ptt, u8 *p_filter)
3662 {
3663 	u32 high = 0, low = 0;
3664 	int i;
3665 
3666 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &p_hwfn->cdev->mf_bits))
3667 		return;
3668 
3669 	qed_llh_mac_to_filter(&high, &low, p_filter);
3670 
3671 	/* Find the entry and clean it */
3672 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
3673 		if (qed_rd(p_hwfn, p_ptt,
3674 			   NIG_REG_LLH_FUNC_FILTER_VALUE +
3675 			   2 * i * sizeof(u32)) != low)
3676 			continue;
3677 		if (qed_rd(p_hwfn, p_ptt,
3678 			   NIG_REG_LLH_FUNC_FILTER_VALUE +
3679 			   (2 * i + 1) * sizeof(u32)) != high)
3680 			continue;
3681 
3682 		qed_wr(p_hwfn, p_ptt,
3683 		       NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 0);
3684 		qed_wr(p_hwfn, p_ptt,
3685 		       NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * i * sizeof(u32), 0);
3686 		qed_wr(p_hwfn, p_ptt,
3687 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3688 		       (2 * i + 1) * sizeof(u32), 0);
3689 
3690 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3691 			   "mac: %pM is removed from %d\n",
3692 			   p_filter, i);
3693 		break;
3694 	}
3695 	if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE)
3696 		DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
3697 }
3698 
3699 int
qed_llh_add_protocol_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 source_port_or_eth_type,u16 dest_port,enum qed_llh_port_filter_type_t type)3700 qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
3701 			    struct qed_ptt *p_ptt,
3702 			    u16 source_port_or_eth_type,
3703 			    u16 dest_port, enum qed_llh_port_filter_type_t type)
3704 {
3705 	u32 high = 0, low = 0, en;
3706 	int i;
3707 
3708 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &p_hwfn->cdev->mf_bits))
3709 		return 0;
3710 
3711 	switch (type) {
3712 	case QED_LLH_FILTER_ETHERTYPE:
3713 		high = source_port_or_eth_type;
3714 		break;
3715 	case QED_LLH_FILTER_TCP_SRC_PORT:
3716 	case QED_LLH_FILTER_UDP_SRC_PORT:
3717 		low = source_port_or_eth_type << 16;
3718 		break;
3719 	case QED_LLH_FILTER_TCP_DEST_PORT:
3720 	case QED_LLH_FILTER_UDP_DEST_PORT:
3721 		low = dest_port;
3722 		break;
3723 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
3724 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
3725 		low = (source_port_or_eth_type << 16) | dest_port;
3726 		break;
3727 	default:
3728 		DP_NOTICE(p_hwfn,
3729 			  "Non valid LLH protocol filter type %d\n", type);
3730 		return -EINVAL;
3731 	}
3732 	/* Find a free entry and utilize it */
3733 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
3734 		en = qed_rd(p_hwfn, p_ptt,
3735 			    NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32));
3736 		if (en)
3737 			continue;
3738 		qed_wr(p_hwfn, p_ptt,
3739 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3740 		       2 * i * sizeof(u32), low);
3741 		qed_wr(p_hwfn, p_ptt,
3742 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3743 		       (2 * i + 1) * sizeof(u32), high);
3744 		qed_wr(p_hwfn, p_ptt,
3745 		       NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 1);
3746 		qed_wr(p_hwfn, p_ptt,
3747 		       NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
3748 		       i * sizeof(u32), 1 << type);
3749 		qed_wr(p_hwfn, p_ptt,
3750 		       NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 1);
3751 		break;
3752 	}
3753 	if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
3754 		DP_NOTICE(p_hwfn,
3755 			  "Failed to find an empty LLH filter to utilize\n");
3756 		return -EINVAL;
3757 	}
3758 	switch (type) {
3759 	case QED_LLH_FILTER_ETHERTYPE:
3760 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3761 			   "ETH type %x is added at %d\n",
3762 			   source_port_or_eth_type, i);
3763 		break;
3764 	case QED_LLH_FILTER_TCP_SRC_PORT:
3765 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3766 			   "TCP src port %x is added at %d\n",
3767 			   source_port_or_eth_type, i);
3768 		break;
3769 	case QED_LLH_FILTER_UDP_SRC_PORT:
3770 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3771 			   "UDP src port %x is added at %d\n",
3772 			   source_port_or_eth_type, i);
3773 		break;
3774 	case QED_LLH_FILTER_TCP_DEST_PORT:
3775 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3776 			   "TCP dst port %x is added at %d\n", dest_port, i);
3777 		break;
3778 	case QED_LLH_FILTER_UDP_DEST_PORT:
3779 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3780 			   "UDP dst port %x is added at %d\n", dest_port, i);
3781 		break;
3782 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
3783 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3784 			   "TCP src/dst ports %x/%x are added at %d\n",
3785 			   source_port_or_eth_type, dest_port, i);
3786 		break;
3787 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
3788 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
3789 			   "UDP src/dst ports %x/%x are added at %d\n",
3790 			   source_port_or_eth_type, dest_port, i);
3791 		break;
3792 	}
3793 	return 0;
3794 }
3795 
3796 void
qed_llh_remove_protocol_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 source_port_or_eth_type,u16 dest_port,enum qed_llh_port_filter_type_t type)3797 qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
3798 			       struct qed_ptt *p_ptt,
3799 			       u16 source_port_or_eth_type,
3800 			       u16 dest_port,
3801 			       enum qed_llh_port_filter_type_t type)
3802 {
3803 	u32 high = 0, low = 0;
3804 	int i;
3805 
3806 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &p_hwfn->cdev->mf_bits))
3807 		return;
3808 
3809 	switch (type) {
3810 	case QED_LLH_FILTER_ETHERTYPE:
3811 		high = source_port_or_eth_type;
3812 		break;
3813 	case QED_LLH_FILTER_TCP_SRC_PORT:
3814 	case QED_LLH_FILTER_UDP_SRC_PORT:
3815 		low = source_port_or_eth_type << 16;
3816 		break;
3817 	case QED_LLH_FILTER_TCP_DEST_PORT:
3818 	case QED_LLH_FILTER_UDP_DEST_PORT:
3819 		low = dest_port;
3820 		break;
3821 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
3822 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
3823 		low = (source_port_or_eth_type << 16) | dest_port;
3824 		break;
3825 	default:
3826 		DP_NOTICE(p_hwfn,
3827 			  "Non valid LLH protocol filter type %d\n", type);
3828 		return;
3829 	}
3830 
3831 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
3832 		if (!qed_rd(p_hwfn, p_ptt,
3833 			    NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32)))
3834 			continue;
3835 		if (!qed_rd(p_hwfn, p_ptt,
3836 			    NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32)))
3837 			continue;
3838 		if (!(qed_rd(p_hwfn, p_ptt,
3839 			     NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
3840 			     i * sizeof(u32)) & BIT(type)))
3841 			continue;
3842 		if (qed_rd(p_hwfn, p_ptt,
3843 			   NIG_REG_LLH_FUNC_FILTER_VALUE +
3844 			   2 * i * sizeof(u32)) != low)
3845 			continue;
3846 		if (qed_rd(p_hwfn, p_ptt,
3847 			   NIG_REG_LLH_FUNC_FILTER_VALUE +
3848 			   (2 * i + 1) * sizeof(u32)) != high)
3849 			continue;
3850 
3851 		qed_wr(p_hwfn, p_ptt,
3852 		       NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 0);
3853 		qed_wr(p_hwfn, p_ptt,
3854 		       NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 0);
3855 		qed_wr(p_hwfn, p_ptt,
3856 		       NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
3857 		       i * sizeof(u32), 0);
3858 		qed_wr(p_hwfn, p_ptt,
3859 		       NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * i * sizeof(u32), 0);
3860 		qed_wr(p_hwfn, p_ptt,
3861 		       NIG_REG_LLH_FUNC_FILTER_VALUE +
3862 		       (2 * i + 1) * sizeof(u32), 0);
3863 		break;
3864 	}
3865 
3866 	if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE)
3867 		DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
3868 }
3869 
qed_set_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 hw_addr,void * p_eth_qzone,size_t eth_qzone_size,u8 timeset)3870 static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
3871 			    u32 hw_addr, void *p_eth_qzone,
3872 			    size_t eth_qzone_size, u8 timeset)
3873 {
3874 	struct coalescing_timeset *p_coal_timeset;
3875 
3876 	if (p_hwfn->cdev->int_coalescing_mode != QED_COAL_MODE_ENABLE) {
3877 		DP_NOTICE(p_hwfn, "Coalescing configuration not enabled\n");
3878 		return -EINVAL;
3879 	}
3880 
3881 	p_coal_timeset = p_eth_qzone;
3882 	memset(p_eth_qzone, 0, eth_qzone_size);
3883 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_TIMESET, timeset);
3884 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_VALID, 1);
3885 	qed_memcpy_to(p_hwfn, p_ptt, hw_addr, p_eth_qzone, eth_qzone_size);
3886 
3887 	return 0;
3888 }
3889 
qed_set_queue_coalesce(u16 rx_coal,u16 tx_coal,void * p_handle)3890 int qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle)
3891 {
3892 	struct qed_queue_cid *p_cid = p_handle;
3893 	struct qed_hwfn *p_hwfn;
3894 	struct qed_ptt *p_ptt;
3895 	int rc = 0;
3896 
3897 	p_hwfn = p_cid->p_owner;
3898 
3899 	if (IS_VF(p_hwfn->cdev))
3900 		return qed_vf_pf_set_coalesce(p_hwfn, rx_coal, tx_coal, p_cid);
3901 
3902 	p_ptt = qed_ptt_acquire(p_hwfn);
3903 	if (!p_ptt)
3904 		return -EAGAIN;
3905 
3906 	if (rx_coal) {
3907 		rc = qed_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
3908 		if (rc)
3909 			goto out;
3910 		p_hwfn->cdev->rx_coalesce_usecs = rx_coal;
3911 	}
3912 
3913 	if (tx_coal) {
3914 		rc = qed_set_txq_coalesce(p_hwfn, p_ptt, tx_coal, p_cid);
3915 		if (rc)
3916 			goto out;
3917 		p_hwfn->cdev->tx_coalesce_usecs = tx_coal;
3918 	}
3919 out:
3920 	qed_ptt_release(p_hwfn, p_ptt);
3921 	return rc;
3922 }
3923 
qed_set_rxq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)3924 int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
3925 			 struct qed_ptt *p_ptt,
3926 			 u16 coalesce, struct qed_queue_cid *p_cid)
3927 {
3928 	struct ustorm_eth_queue_zone eth_qzone;
3929 	u8 timeset, timer_res;
3930 	u32 address;
3931 	int rc;
3932 
3933 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
3934 	if (coalesce <= 0x7F) {
3935 		timer_res = 0;
3936 	} else if (coalesce <= 0xFF) {
3937 		timer_res = 1;
3938 	} else if (coalesce <= 0x1FF) {
3939 		timer_res = 2;
3940 	} else {
3941 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
3942 		return -EINVAL;
3943 	}
3944 	timeset = (u8)(coalesce >> timer_res);
3945 
3946 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
3947 				   p_cid->sb_igu_id, false);
3948 	if (rc)
3949 		goto out;
3950 
3951 	address = BAR0_MAP_REG_USDM_RAM +
3952 		  USTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
3953 
3954 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
3955 			      sizeof(struct ustorm_eth_queue_zone), timeset);
3956 	if (rc)
3957 		goto out;
3958 
3959 out:
3960 	return rc;
3961 }
3962 
qed_set_txq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)3963 int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
3964 			 struct qed_ptt *p_ptt,
3965 			 u16 coalesce, struct qed_queue_cid *p_cid)
3966 {
3967 	struct xstorm_eth_queue_zone eth_qzone;
3968 	u8 timeset, timer_res;
3969 	u32 address;
3970 	int rc;
3971 
3972 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
3973 	if (coalesce <= 0x7F) {
3974 		timer_res = 0;
3975 	} else if (coalesce <= 0xFF) {
3976 		timer_res = 1;
3977 	} else if (coalesce <= 0x1FF) {
3978 		timer_res = 2;
3979 	} else {
3980 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
3981 		return -EINVAL;
3982 	}
3983 	timeset = (u8)(coalesce >> timer_res);
3984 
3985 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
3986 				   p_cid->sb_igu_id, true);
3987 	if (rc)
3988 		goto out;
3989 
3990 	address = BAR0_MAP_REG_XSDM_RAM +
3991 		  XSTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
3992 
3993 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
3994 			      sizeof(struct xstorm_eth_queue_zone), timeset);
3995 out:
3996 	return rc;
3997 }
3998 
3999 /* Calculate final WFQ values for all vports and configure them.
4000  * After this configuration each vport will have
4001  * approx min rate =  min_pf_rate * (vport_wfq / QED_WFQ_UNIT)
4002  */
qed_configure_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)4003 static void qed_configure_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
4004 					     struct qed_ptt *p_ptt,
4005 					     u32 min_pf_rate)
4006 {
4007 	struct init_qm_vport_params *vport_params;
4008 	int i;
4009 
4010 	vport_params = p_hwfn->qm_info.qm_vport_params;
4011 
4012 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
4013 		u32 wfq_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
4014 
4015 		vport_params[i].vport_wfq = (wfq_speed * QED_WFQ_UNIT) /
4016 						min_pf_rate;
4017 		qed_init_vport_wfq(p_hwfn, p_ptt,
4018 				   vport_params[i].first_tx_pq_id,
4019 				   vport_params[i].vport_wfq);
4020 	}
4021 }
4022 
qed_init_wfq_default_param(struct qed_hwfn * p_hwfn,u32 min_pf_rate)4023 static void qed_init_wfq_default_param(struct qed_hwfn *p_hwfn,
4024 				       u32 min_pf_rate)
4025 
4026 {
4027 	int i;
4028 
4029 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++)
4030 		p_hwfn->qm_info.qm_vport_params[i].vport_wfq = 1;
4031 }
4032 
qed_disable_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)4033 static void qed_disable_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
4034 					   struct qed_ptt *p_ptt,
4035 					   u32 min_pf_rate)
4036 {
4037 	struct init_qm_vport_params *vport_params;
4038 	int i;
4039 
4040 	vport_params = p_hwfn->qm_info.qm_vport_params;
4041 
4042 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
4043 		qed_init_wfq_default_param(p_hwfn, min_pf_rate);
4044 		qed_init_vport_wfq(p_hwfn, p_ptt,
4045 				   vport_params[i].first_tx_pq_id,
4046 				   vport_params[i].vport_wfq);
4047 	}
4048 }
4049 
4050 /* This function performs several validations for WFQ
4051  * configuration and required min rate for a given vport
4052  * 1. req_rate must be greater than one percent of min_pf_rate.
4053  * 2. req_rate should not cause other vports [not configured for WFQ explicitly]
4054  *    rates to get less than one percent of min_pf_rate.
4055  * 3. total_req_min_rate [all vports min rate sum] shouldn't exceed min_pf_rate.
4056  */
qed_init_wfq_param(struct qed_hwfn * p_hwfn,u16 vport_id,u32 req_rate,u32 min_pf_rate)4057 static int qed_init_wfq_param(struct qed_hwfn *p_hwfn,
4058 			      u16 vport_id, u32 req_rate, u32 min_pf_rate)
4059 {
4060 	u32 total_req_min_rate = 0, total_left_rate = 0, left_rate_per_vp = 0;
4061 	int non_requested_count = 0, req_count = 0, i, num_vports;
4062 
4063 	num_vports = p_hwfn->qm_info.num_vports;
4064 
4065 	/* Accounting for the vports which are configured for WFQ explicitly */
4066 	for (i = 0; i < num_vports; i++) {
4067 		u32 tmp_speed;
4068 
4069 		if ((i != vport_id) &&
4070 		    p_hwfn->qm_info.wfq_data[i].configured) {
4071 			req_count++;
4072 			tmp_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
4073 			total_req_min_rate += tmp_speed;
4074 		}
4075 	}
4076 
4077 	/* Include current vport data as well */
4078 	req_count++;
4079 	total_req_min_rate += req_rate;
4080 	non_requested_count = num_vports - req_count;
4081 
4082 	if (req_rate < min_pf_rate / QED_WFQ_UNIT) {
4083 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4084 			   "Vport [%d] - Requested rate[%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
4085 			   vport_id, req_rate, min_pf_rate);
4086 		return -EINVAL;
4087 	}
4088 
4089 	if (num_vports > QED_WFQ_UNIT) {
4090 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4091 			   "Number of vports is greater than %d\n",
4092 			   QED_WFQ_UNIT);
4093 		return -EINVAL;
4094 	}
4095 
4096 	if (total_req_min_rate > min_pf_rate) {
4097 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4098 			   "Total requested min rate for all vports[%d Mbps] is greater than configured PF min rate[%d Mbps]\n",
4099 			   total_req_min_rate, min_pf_rate);
4100 		return -EINVAL;
4101 	}
4102 
4103 	total_left_rate	= min_pf_rate - total_req_min_rate;
4104 
4105 	left_rate_per_vp = total_left_rate / non_requested_count;
4106 	if (left_rate_per_vp <  min_pf_rate / QED_WFQ_UNIT) {
4107 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4108 			   "Non WFQ configured vports rate [%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
4109 			   left_rate_per_vp, min_pf_rate);
4110 		return -EINVAL;
4111 	}
4112 
4113 	p_hwfn->qm_info.wfq_data[vport_id].min_speed = req_rate;
4114 	p_hwfn->qm_info.wfq_data[vport_id].configured = true;
4115 
4116 	for (i = 0; i < num_vports; i++) {
4117 		if (p_hwfn->qm_info.wfq_data[i].configured)
4118 			continue;
4119 
4120 		p_hwfn->qm_info.wfq_data[i].min_speed = left_rate_per_vp;
4121 	}
4122 
4123 	return 0;
4124 }
4125 
__qed_configure_vport_wfq(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 vp_id,u32 rate)4126 static int __qed_configure_vport_wfq(struct qed_hwfn *p_hwfn,
4127 				     struct qed_ptt *p_ptt, u16 vp_id, u32 rate)
4128 {
4129 	struct qed_mcp_link_state *p_link;
4130 	int rc = 0;
4131 
4132 	p_link = &p_hwfn->cdev->hwfns[0].mcp_info->link_output;
4133 
4134 	if (!p_link->min_pf_rate) {
4135 		p_hwfn->qm_info.wfq_data[vp_id].min_speed = rate;
4136 		p_hwfn->qm_info.wfq_data[vp_id].configured = true;
4137 		return rc;
4138 	}
4139 
4140 	rc = qed_init_wfq_param(p_hwfn, vp_id, rate, p_link->min_pf_rate);
4141 
4142 	if (!rc)
4143 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt,
4144 						 p_link->min_pf_rate);
4145 	else
4146 		DP_NOTICE(p_hwfn,
4147 			  "Validation failed while configuring min rate\n");
4148 
4149 	return rc;
4150 }
4151 
__qed_configure_vp_wfq_on_link_change(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)4152 static int __qed_configure_vp_wfq_on_link_change(struct qed_hwfn *p_hwfn,
4153 						 struct qed_ptt *p_ptt,
4154 						 u32 min_pf_rate)
4155 {
4156 	bool use_wfq = false;
4157 	int rc = 0;
4158 	u16 i;
4159 
4160 	/* Validate all pre configured vports for wfq */
4161 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
4162 		u32 rate;
4163 
4164 		if (!p_hwfn->qm_info.wfq_data[i].configured)
4165 			continue;
4166 
4167 		rate = p_hwfn->qm_info.wfq_data[i].min_speed;
4168 		use_wfq = true;
4169 
4170 		rc = qed_init_wfq_param(p_hwfn, i, rate, min_pf_rate);
4171 		if (rc) {
4172 			DP_NOTICE(p_hwfn,
4173 				  "WFQ validation failed while configuring min rate\n");
4174 			break;
4175 		}
4176 	}
4177 
4178 	if (!rc && use_wfq)
4179 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
4180 	else
4181 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
4182 
4183 	return rc;
4184 }
4185 
4186 /* Main API for qed clients to configure vport min rate.
4187  * vp_id - vport id in PF Range[0 - (total_num_vports_per_pf - 1)]
4188  * rate - Speed in Mbps needs to be assigned to a given vport.
4189  */
qed_configure_vport_wfq(struct qed_dev * cdev,u16 vp_id,u32 rate)4190 int qed_configure_vport_wfq(struct qed_dev *cdev, u16 vp_id, u32 rate)
4191 {
4192 	int i, rc = -EINVAL;
4193 
4194 	/* Currently not supported; Might change in future */
4195 	if (cdev->num_hwfns > 1) {
4196 		DP_NOTICE(cdev,
4197 			  "WFQ configuration is not supported for this device\n");
4198 		return rc;
4199 	}
4200 
4201 	for_each_hwfn(cdev, i) {
4202 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4203 		struct qed_ptt *p_ptt;
4204 
4205 		p_ptt = qed_ptt_acquire(p_hwfn);
4206 		if (!p_ptt)
4207 			return -EBUSY;
4208 
4209 		rc = __qed_configure_vport_wfq(p_hwfn, p_ptt, vp_id, rate);
4210 
4211 		if (rc) {
4212 			qed_ptt_release(p_hwfn, p_ptt);
4213 			return rc;
4214 		}
4215 
4216 		qed_ptt_release(p_hwfn, p_ptt);
4217 	}
4218 
4219 	return rc;
4220 }
4221 
4222 /* API to configure WFQ from mcp link change */
qed_configure_vp_wfq_on_link_change(struct qed_dev * cdev,struct qed_ptt * p_ptt,u32 min_pf_rate)4223 void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev,
4224 					 struct qed_ptt *p_ptt, u32 min_pf_rate)
4225 {
4226 	int i;
4227 
4228 	if (cdev->num_hwfns > 1) {
4229 		DP_VERBOSE(cdev,
4230 			   NETIF_MSG_LINK,
4231 			   "WFQ configuration is not supported for this device\n");
4232 		return;
4233 	}
4234 
4235 	for_each_hwfn(cdev, i) {
4236 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4237 
4238 		__qed_configure_vp_wfq_on_link_change(p_hwfn, p_ptt,
4239 						      min_pf_rate);
4240 	}
4241 }
4242 
__qed_configure_pf_max_bandwidth(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_mcp_link_state * p_link,u8 max_bw)4243 int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
4244 				     struct qed_ptt *p_ptt,
4245 				     struct qed_mcp_link_state *p_link,
4246 				     u8 max_bw)
4247 {
4248 	int rc = 0;
4249 
4250 	p_hwfn->mcp_info->func_info.bandwidth_max = max_bw;
4251 
4252 	if (!p_link->line_speed && (max_bw != 100))
4253 		return rc;
4254 
4255 	p_link->speed = (p_link->line_speed * max_bw) / 100;
4256 	p_hwfn->qm_info.pf_rl = p_link->speed;
4257 
4258 	/* Since the limiter also affects Tx-switched traffic, we don't want it
4259 	 * to limit such traffic in case there's no actual limit.
4260 	 * In that case, set limit to imaginary high boundary.
4261 	 */
4262 	if (max_bw == 100)
4263 		p_hwfn->qm_info.pf_rl = 100000;
4264 
4265 	rc = qed_init_pf_rl(p_hwfn, p_ptt, p_hwfn->rel_pf_id,
4266 			    p_hwfn->qm_info.pf_rl);
4267 
4268 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4269 		   "Configured MAX bandwidth to be %08x Mb/sec\n",
4270 		   p_link->speed);
4271 
4272 	return rc;
4273 }
4274 
4275 /* Main API to configure PF max bandwidth where bw range is [1 - 100] */
qed_configure_pf_max_bandwidth(struct qed_dev * cdev,u8 max_bw)4276 int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw)
4277 {
4278 	int i, rc = -EINVAL;
4279 
4280 	if (max_bw < 1 || max_bw > 100) {
4281 		DP_NOTICE(cdev, "PF max bw valid range is [1-100]\n");
4282 		return rc;
4283 	}
4284 
4285 	for_each_hwfn(cdev, i) {
4286 		struct qed_hwfn	*p_hwfn = &cdev->hwfns[i];
4287 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
4288 		struct qed_mcp_link_state *p_link;
4289 		struct qed_ptt *p_ptt;
4290 
4291 		p_link = &p_lead->mcp_info->link_output;
4292 
4293 		p_ptt = qed_ptt_acquire(p_hwfn);
4294 		if (!p_ptt)
4295 			return -EBUSY;
4296 
4297 		rc = __qed_configure_pf_max_bandwidth(p_hwfn, p_ptt,
4298 						      p_link, max_bw);
4299 
4300 		qed_ptt_release(p_hwfn, p_ptt);
4301 
4302 		if (rc)
4303 			break;
4304 	}
4305 
4306 	return rc;
4307 }
4308 
__qed_configure_pf_min_bandwidth(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_mcp_link_state * p_link,u8 min_bw)4309 int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
4310 				     struct qed_ptt *p_ptt,
4311 				     struct qed_mcp_link_state *p_link,
4312 				     u8 min_bw)
4313 {
4314 	int rc = 0;
4315 
4316 	p_hwfn->mcp_info->func_info.bandwidth_min = min_bw;
4317 	p_hwfn->qm_info.pf_wfq = min_bw;
4318 
4319 	if (!p_link->line_speed)
4320 		return rc;
4321 
4322 	p_link->min_pf_rate = (p_link->line_speed * min_bw) / 100;
4323 
4324 	rc = qed_init_pf_wfq(p_hwfn, p_ptt, p_hwfn->rel_pf_id, min_bw);
4325 
4326 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4327 		   "Configured MIN bandwidth to be %d Mb/sec\n",
4328 		   p_link->min_pf_rate);
4329 
4330 	return rc;
4331 }
4332 
4333 /* Main API to configure PF min bandwidth where bw range is [1-100] */
qed_configure_pf_min_bandwidth(struct qed_dev * cdev,u8 min_bw)4334 int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw)
4335 {
4336 	int i, rc = -EINVAL;
4337 
4338 	if (min_bw < 1 || min_bw > 100) {
4339 		DP_NOTICE(cdev, "PF min bw valid range is [1-100]\n");
4340 		return rc;
4341 	}
4342 
4343 	for_each_hwfn(cdev, i) {
4344 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4345 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
4346 		struct qed_mcp_link_state *p_link;
4347 		struct qed_ptt *p_ptt;
4348 
4349 		p_link = &p_lead->mcp_info->link_output;
4350 
4351 		p_ptt = qed_ptt_acquire(p_hwfn);
4352 		if (!p_ptt)
4353 			return -EBUSY;
4354 
4355 		rc = __qed_configure_pf_min_bandwidth(p_hwfn, p_ptt,
4356 						      p_link, min_bw);
4357 		if (rc) {
4358 			qed_ptt_release(p_hwfn, p_ptt);
4359 			return rc;
4360 		}
4361 
4362 		if (p_link->min_pf_rate) {
4363 			u32 min_rate = p_link->min_pf_rate;
4364 
4365 			rc = __qed_configure_vp_wfq_on_link_change(p_hwfn,
4366 								   p_ptt,
4367 								   min_rate);
4368 		}
4369 
4370 		qed_ptt_release(p_hwfn, p_ptt);
4371 	}
4372 
4373 	return rc;
4374 }
4375 
qed_clean_wfq_db(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4376 void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4377 {
4378 	struct qed_mcp_link_state *p_link;
4379 
4380 	p_link = &p_hwfn->mcp_info->link_output;
4381 
4382 	if (p_link->min_pf_rate)
4383 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt,
4384 					       p_link->min_pf_rate);
4385 
4386 	memset(p_hwfn->qm_info.wfq_data, 0,
4387 	       sizeof(*p_hwfn->qm_info.wfq_data) * p_hwfn->qm_info.num_vports);
4388 }
4389 
qed_device_num_engines(struct qed_dev * cdev)4390 int qed_device_num_engines(struct qed_dev *cdev)
4391 {
4392 	return QED_IS_BB(cdev) ? 2 : 1;
4393 }
4394 
qed_device_num_ports(struct qed_dev * cdev)4395 static int qed_device_num_ports(struct qed_dev *cdev)
4396 {
4397 	/* in CMT always only one port */
4398 	if (cdev->num_hwfns > 1)
4399 		return 1;
4400 
4401 	return cdev->num_ports_in_engine * qed_device_num_engines(cdev);
4402 }
4403 
qed_device_get_port_id(struct qed_dev * cdev)4404 int qed_device_get_port_id(struct qed_dev *cdev)
4405 {
4406 	return (QED_LEADING_HWFN(cdev)->abs_pf_id) % qed_device_num_ports(cdev);
4407 }
4408 
qed_set_fw_mac_addr(__le16 * fw_msb,__le16 * fw_mid,__le16 * fw_lsb,u8 * mac)4409 void qed_set_fw_mac_addr(__le16 *fw_msb,
4410 			 __le16 *fw_mid, __le16 *fw_lsb, u8 *mac)
4411 {
4412 	((u8 *)fw_msb)[0] = mac[1];
4413 	((u8 *)fw_msb)[1] = mac[0];
4414 	((u8 *)fw_mid)[0] = mac[3];
4415 	((u8 *)fw_mid)[1] = mac[2];
4416 	((u8 *)fw_lsb)[0] = mac[5];
4417 	((u8 *)fw_lsb)[1] = mac[4];
4418 }
4419