1 /*
2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
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/highmem.h>
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/errno.h>
37 #include <linux/pci.h>
38 #include <linux/dma-mapping.h>
39 #include <linux/slab.h>
40 #include <linux/interrupt.h>
41 #include <linux/delay.h>
42 #include <linux/mlx5/driver.h>
43 #include <linux/mlx5/cq.h>
44 #include <linux/mlx5/qp.h>
45 #include <linux/debugfs.h>
46 #include <linux/kmod.h>
47 #include <linux/mlx5/mlx5_ifc.h>
48 #include <linux/mlx5/vport.h>
49 #include <linux/version.h>
50 #include <net/devlink.h>
51 #include "mlx5_core.h"
52 #include "lib/eq.h"
53 #include "fs_core.h"
54 #include "lib/mpfs.h"
55 #include "eswitch.h"
56 #include "devlink.h"
57 #include "fw_reset.h"
58 #include "lib/mlx5.h"
59 #include "lib/tout.h"
60 #include "fpga/core.h"
61 #include "en_accel/ipsec.h"
62 #include "lib/clock.h"
63 #include "lib/vxlan.h"
64 #include "lib/geneve.h"
65 #include "lib/devcom.h"
66 #include "lib/pci_vsc.h"
67 #include "diag/fw_tracer.h"
68 #include "ecpf.h"
69 #include "lib/hv_vhca.h"
70 #include "diag/rsc_dump.h"
71 #include "sf/vhca_event.h"
72 #include "sf/dev/dev.h"
73 #include "sf/sf.h"
74 #include "mlx5_irq.h"
75 #include "hwmon.h"
76
77 MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>");
78 MODULE_DESCRIPTION("Mellanox 5th generation network adapters (ConnectX series) core driver");
79 MODULE_LICENSE("Dual BSD/GPL");
80
81 unsigned int mlx5_core_debug_mask;
82 module_param_named(debug_mask, mlx5_core_debug_mask, uint, 0644);
83 MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0");
84
85 static unsigned int prof_sel = MLX5_DEFAULT_PROF;
86 module_param_named(prof_sel, prof_sel, uint, 0444);
87 MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2");
88
89 static u32 sw_owner_id[4];
90 #define MAX_SW_VHCA_ID (BIT(__mlx5_bit_sz(cmd_hca_cap_2, sw_vhca_id)) - 1)
91 static DEFINE_IDA(sw_vhca_ida);
92
93 enum {
94 MLX5_ATOMIC_REQ_MODE_BE = 0x0,
95 MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS = 0x1,
96 };
97
98 #define LOG_MAX_SUPPORTED_QPS 0xff
99
100 static struct mlx5_profile profile[] = {
101 [0] = {
102 .mask = 0,
103 .num_cmd_caches = MLX5_NUM_COMMAND_CACHES,
104 },
105 [1] = {
106 .mask = MLX5_PROF_MASK_QP_SIZE,
107 .log_max_qp = 12,
108 .num_cmd_caches = MLX5_NUM_COMMAND_CACHES,
109
110 },
111 [2] = {
112 .mask = MLX5_PROF_MASK_QP_SIZE |
113 MLX5_PROF_MASK_MR_CACHE,
114 .log_max_qp = LOG_MAX_SUPPORTED_QPS,
115 .num_cmd_caches = MLX5_NUM_COMMAND_CACHES,
116 .mr_cache[0] = {
117 .size = 500,
118 .limit = 250
119 },
120 .mr_cache[1] = {
121 .size = 500,
122 .limit = 250
123 },
124 .mr_cache[2] = {
125 .size = 500,
126 .limit = 250
127 },
128 .mr_cache[3] = {
129 .size = 500,
130 .limit = 250
131 },
132 .mr_cache[4] = {
133 .size = 500,
134 .limit = 250
135 },
136 .mr_cache[5] = {
137 .size = 500,
138 .limit = 250
139 },
140 .mr_cache[6] = {
141 .size = 500,
142 .limit = 250
143 },
144 .mr_cache[7] = {
145 .size = 500,
146 .limit = 250
147 },
148 .mr_cache[8] = {
149 .size = 500,
150 .limit = 250
151 },
152 .mr_cache[9] = {
153 .size = 500,
154 .limit = 250
155 },
156 .mr_cache[10] = {
157 .size = 500,
158 .limit = 250
159 },
160 .mr_cache[11] = {
161 .size = 500,
162 .limit = 250
163 },
164 .mr_cache[12] = {
165 .size = 64,
166 .limit = 32
167 },
168 .mr_cache[13] = {
169 .size = 32,
170 .limit = 16
171 },
172 .mr_cache[14] = {
173 .size = 16,
174 .limit = 8
175 },
176 .mr_cache[15] = {
177 .size = 8,
178 .limit = 4
179 },
180 },
181 [3] = {
182 .mask = MLX5_PROF_MASK_QP_SIZE,
183 .log_max_qp = LOG_MAX_SUPPORTED_QPS,
184 .num_cmd_caches = 0,
185 },
186 };
187
wait_fw_init(struct mlx5_core_dev * dev,u32 max_wait_mili,u32 warn_time_mili)188 static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili,
189 u32 warn_time_mili)
190 {
191 unsigned long warn = jiffies + msecs_to_jiffies(warn_time_mili);
192 unsigned long end = jiffies + msecs_to_jiffies(max_wait_mili);
193 u32 fw_initializing;
194 int err = 0;
195
196 do {
197 fw_initializing = ioread32be(&dev->iseg->initializing);
198 if (!(fw_initializing >> 31))
199 break;
200 if (time_after(jiffies, end) ||
201 test_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state)) {
202 err = -EBUSY;
203 break;
204 }
205 if (warn_time_mili && time_after(jiffies, warn)) {
206 mlx5_core_warn(dev, "Waiting for FW initialization, timeout abort in %ds (0x%x)\n",
207 jiffies_to_msecs(end - warn) / 1000, fw_initializing);
208 warn = jiffies + msecs_to_jiffies(warn_time_mili);
209 }
210 msleep(mlx5_tout_ms(dev, FW_PRE_INIT_WAIT));
211 } while (true);
212
213 return err;
214 }
215
mlx5_set_driver_version(struct mlx5_core_dev * dev)216 static void mlx5_set_driver_version(struct mlx5_core_dev *dev)
217 {
218 int driver_ver_sz = MLX5_FLD_SZ_BYTES(set_driver_version_in,
219 driver_version);
220 u8 in[MLX5_ST_SZ_BYTES(set_driver_version_in)] = {};
221 int remaining_size = driver_ver_sz;
222 char *string;
223
224 if (!MLX5_CAP_GEN(dev, driver_version))
225 return;
226
227 string = MLX5_ADDR_OF(set_driver_version_in, in, driver_version);
228
229 strncpy(string, "Linux", remaining_size);
230
231 remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
232 strncat(string, ",", remaining_size);
233
234 remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
235 strncat(string, KBUILD_MODNAME, remaining_size);
236
237 remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
238 strncat(string, ",", remaining_size);
239
240 remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
241
242 snprintf(string + strlen(string), remaining_size, "%u.%u.%u",
243 LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL,
244 LINUX_VERSION_SUBLEVEL);
245
246 /*Send the command*/
247 MLX5_SET(set_driver_version_in, in, opcode,
248 MLX5_CMD_OP_SET_DRIVER_VERSION);
249
250 mlx5_cmd_exec_in(dev, set_driver_version, in);
251 }
252
set_dma_caps(struct pci_dev * pdev)253 static int set_dma_caps(struct pci_dev *pdev)
254 {
255 int err;
256
257 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
258 if (err) {
259 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n");
260 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
261 if (err) {
262 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n");
263 return err;
264 }
265 }
266
267 dma_set_max_seg_size(&pdev->dev, 2u * 1024 * 1024 * 1024);
268 return err;
269 }
270
mlx5_pci_enable_device(struct mlx5_core_dev * dev)271 static int mlx5_pci_enable_device(struct mlx5_core_dev *dev)
272 {
273 struct pci_dev *pdev = dev->pdev;
274 int err = 0;
275
276 mutex_lock(&dev->pci_status_mutex);
277 if (dev->pci_status == MLX5_PCI_STATUS_DISABLED) {
278 err = pci_enable_device(pdev);
279 if (!err)
280 dev->pci_status = MLX5_PCI_STATUS_ENABLED;
281 }
282 mutex_unlock(&dev->pci_status_mutex);
283
284 return err;
285 }
286
mlx5_pci_disable_device(struct mlx5_core_dev * dev)287 static void mlx5_pci_disable_device(struct mlx5_core_dev *dev)
288 {
289 struct pci_dev *pdev = dev->pdev;
290
291 mutex_lock(&dev->pci_status_mutex);
292 if (dev->pci_status == MLX5_PCI_STATUS_ENABLED) {
293 pci_disable_device(pdev);
294 dev->pci_status = MLX5_PCI_STATUS_DISABLED;
295 }
296 mutex_unlock(&dev->pci_status_mutex);
297 }
298
request_bar(struct pci_dev * pdev)299 static int request_bar(struct pci_dev *pdev)
300 {
301 int err = 0;
302
303 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
304 dev_err(&pdev->dev, "Missing registers BAR, aborting\n");
305 return -ENODEV;
306 }
307
308 err = pci_request_regions(pdev, KBUILD_MODNAME);
309 if (err)
310 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
311
312 return err;
313 }
314
release_bar(struct pci_dev * pdev)315 static void release_bar(struct pci_dev *pdev)
316 {
317 pci_release_regions(pdev);
318 }
319
320 struct mlx5_reg_host_endianness {
321 u8 he;
322 u8 rsvd[15];
323 };
324
to_fw_pkey_sz(struct mlx5_core_dev * dev,u32 size)325 static u16 to_fw_pkey_sz(struct mlx5_core_dev *dev, u32 size)
326 {
327 switch (size) {
328 case 128:
329 return 0;
330 case 256:
331 return 1;
332 case 512:
333 return 2;
334 case 1024:
335 return 3;
336 case 2048:
337 return 4;
338 case 4096:
339 return 5;
340 default:
341 mlx5_core_warn(dev, "invalid pkey table size %d\n", size);
342 return 0;
343 }
344 }
345
mlx5_core_uplink_netdev_set(struct mlx5_core_dev * dev,struct net_device * netdev)346 void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *dev, struct net_device *netdev)
347 {
348 mutex_lock(&dev->mlx5e_res.uplink_netdev_lock);
349 dev->mlx5e_res.uplink_netdev = netdev;
350 mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_UPLINK_NETDEV,
351 netdev);
352 mutex_unlock(&dev->mlx5e_res.uplink_netdev_lock);
353 }
354
mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev * dev)355 void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *dev)
356 {
357 mutex_lock(&dev->mlx5e_res.uplink_netdev_lock);
358 mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_UPLINK_NETDEV,
359 dev->mlx5e_res.uplink_netdev);
360 mutex_unlock(&dev->mlx5e_res.uplink_netdev_lock);
361 }
362 EXPORT_SYMBOL(mlx5_core_uplink_netdev_event_replay);
363
mlx5_core_mp_event_replay(struct mlx5_core_dev * dev,u32 event,void * data)364 void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data)
365 {
366 mlx5_blocking_notifier_call_chain(dev, event, data);
367 }
368 EXPORT_SYMBOL(mlx5_core_mp_event_replay);
369
mlx5_core_get_caps_mode(struct mlx5_core_dev * dev,enum mlx5_cap_type cap_type,enum mlx5_cap_mode cap_mode)370 int mlx5_core_get_caps_mode(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type,
371 enum mlx5_cap_mode cap_mode)
372 {
373 u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)];
374 int out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
375 void *out, *hca_caps;
376 u16 opmod = (cap_type << 1) | (cap_mode & 0x01);
377 int err;
378
379 memset(in, 0, sizeof(in));
380 out = kzalloc(out_sz, GFP_KERNEL);
381 if (!out)
382 return -ENOMEM;
383
384 MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
385 MLX5_SET(query_hca_cap_in, in, op_mod, opmod);
386 err = mlx5_cmd_exec_inout(dev, query_hca_cap, in, out);
387 if (err) {
388 mlx5_core_warn(dev,
389 "QUERY_HCA_CAP : type(%x) opmode(%x) Failed(%d)\n",
390 cap_type, cap_mode, err);
391 goto query_ex;
392 }
393
394 hca_caps = MLX5_ADDR_OF(query_hca_cap_out, out, capability);
395
396 switch (cap_mode) {
397 case HCA_CAP_OPMOD_GET_MAX:
398 memcpy(dev->caps.hca[cap_type]->max, hca_caps,
399 MLX5_UN_SZ_BYTES(hca_cap_union));
400 break;
401 case HCA_CAP_OPMOD_GET_CUR:
402 memcpy(dev->caps.hca[cap_type]->cur, hca_caps,
403 MLX5_UN_SZ_BYTES(hca_cap_union));
404 break;
405 default:
406 mlx5_core_warn(dev,
407 "Tried to query dev cap type(%x) with wrong opmode(%x)\n",
408 cap_type, cap_mode);
409 err = -EINVAL;
410 break;
411 }
412 query_ex:
413 kfree(out);
414 return err;
415 }
416
mlx5_core_get_caps(struct mlx5_core_dev * dev,enum mlx5_cap_type cap_type)417 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type)
418 {
419 int ret;
420
421 ret = mlx5_core_get_caps_mode(dev, cap_type, HCA_CAP_OPMOD_GET_CUR);
422 if (ret)
423 return ret;
424 return mlx5_core_get_caps_mode(dev, cap_type, HCA_CAP_OPMOD_GET_MAX);
425 }
426
set_caps(struct mlx5_core_dev * dev,void * in,int opmod)427 static int set_caps(struct mlx5_core_dev *dev, void *in, int opmod)
428 {
429 MLX5_SET(set_hca_cap_in, in, opcode, MLX5_CMD_OP_SET_HCA_CAP);
430 MLX5_SET(set_hca_cap_in, in, op_mod, opmod << 1);
431 return mlx5_cmd_exec_in(dev, set_hca_cap, in);
432 }
433
handle_hca_cap_atomic(struct mlx5_core_dev * dev,void * set_ctx)434 static int handle_hca_cap_atomic(struct mlx5_core_dev *dev, void *set_ctx)
435 {
436 void *set_hca_cap;
437 int req_endianness;
438 int err;
439
440 if (!MLX5_CAP_GEN(dev, atomic))
441 return 0;
442
443 err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC);
444 if (err)
445 return err;
446
447 req_endianness =
448 MLX5_CAP_ATOMIC(dev,
449 supported_atomic_req_8B_endianness_mode_1);
450
451 if (req_endianness != MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS)
452 return 0;
453
454 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability);
455
456 /* Set requestor to host endianness */
457 MLX5_SET(atomic_caps, set_hca_cap, atomic_req_8B_endianness_mode,
458 MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS);
459
460 return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ATOMIC);
461 }
462
handle_hca_cap_odp(struct mlx5_core_dev * dev,void * set_ctx)463 static int handle_hca_cap_odp(struct mlx5_core_dev *dev, void *set_ctx)
464 {
465 void *set_hca_cap;
466 bool do_set = false;
467 int err;
468
469 if (!IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) ||
470 !MLX5_CAP_GEN(dev, pg))
471 return 0;
472
473 err = mlx5_core_get_caps(dev, MLX5_CAP_ODP);
474 if (err)
475 return err;
476
477 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability);
478 memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_ODP]->cur,
479 MLX5_ST_SZ_BYTES(odp_cap));
480
481 #define ODP_CAP_SET_MAX(dev, field) \
482 do { \
483 u32 _res = MLX5_CAP_ODP_MAX(dev, field); \
484 if (_res) { \
485 do_set = true; \
486 MLX5_SET(odp_cap, set_hca_cap, field, _res); \
487 } \
488 } while (0)
489
490 ODP_CAP_SET_MAX(dev, ud_odp_caps.srq_receive);
491 ODP_CAP_SET_MAX(dev, rc_odp_caps.srq_receive);
492 ODP_CAP_SET_MAX(dev, xrc_odp_caps.srq_receive);
493 ODP_CAP_SET_MAX(dev, xrc_odp_caps.send);
494 ODP_CAP_SET_MAX(dev, xrc_odp_caps.receive);
495 ODP_CAP_SET_MAX(dev, xrc_odp_caps.write);
496 ODP_CAP_SET_MAX(dev, xrc_odp_caps.read);
497 ODP_CAP_SET_MAX(dev, xrc_odp_caps.atomic);
498 ODP_CAP_SET_MAX(dev, dc_odp_caps.srq_receive);
499 ODP_CAP_SET_MAX(dev, dc_odp_caps.send);
500 ODP_CAP_SET_MAX(dev, dc_odp_caps.receive);
501 ODP_CAP_SET_MAX(dev, dc_odp_caps.write);
502 ODP_CAP_SET_MAX(dev, dc_odp_caps.read);
503 ODP_CAP_SET_MAX(dev, dc_odp_caps.atomic);
504
505 if (!do_set)
506 return 0;
507
508 return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ODP);
509 }
510
max_uc_list_get_devlink_param(struct mlx5_core_dev * dev)511 static int max_uc_list_get_devlink_param(struct mlx5_core_dev *dev)
512 {
513 struct devlink *devlink = priv_to_devlink(dev);
514 union devlink_param_value val;
515 int err;
516
517 err = devl_param_driverinit_value_get(devlink,
518 DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
519 &val);
520 if (!err)
521 return val.vu32;
522 mlx5_core_dbg(dev, "Failed to get param. err = %d\n", err);
523 return err;
524 }
525
mlx5_is_roce_on(struct mlx5_core_dev * dev)526 bool mlx5_is_roce_on(struct mlx5_core_dev *dev)
527 {
528 struct devlink *devlink = priv_to_devlink(dev);
529 union devlink_param_value val;
530 int err;
531
532 err = devl_param_driverinit_value_get(devlink,
533 DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
534 &val);
535
536 if (!err)
537 return val.vbool;
538
539 mlx5_core_dbg(dev, "Failed to get param. err = %d\n", err);
540 return MLX5_CAP_GEN(dev, roce);
541 }
542 EXPORT_SYMBOL(mlx5_is_roce_on);
543
handle_hca_cap_2(struct mlx5_core_dev * dev,void * set_ctx)544 static int handle_hca_cap_2(struct mlx5_core_dev *dev, void *set_ctx)
545 {
546 void *set_hca_cap;
547 int err;
548
549 if (!MLX5_CAP_GEN_MAX(dev, hca_cap_2))
550 return 0;
551
552 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL_2);
553 if (err)
554 return err;
555
556 if (!MLX5_CAP_GEN_2_MAX(dev, sw_vhca_id_valid) ||
557 !(dev->priv.sw_vhca_id > 0))
558 return 0;
559
560 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx,
561 capability);
562 memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_GENERAL_2]->cur,
563 MLX5_ST_SZ_BYTES(cmd_hca_cap_2));
564 MLX5_SET(cmd_hca_cap_2, set_hca_cap, sw_vhca_id_valid, 1);
565
566 return set_caps(dev, set_ctx, MLX5_CAP_GENERAL_2);
567 }
568
handle_hca_cap(struct mlx5_core_dev * dev,void * set_ctx)569 static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
570 {
571 struct mlx5_profile *prof = &dev->profile;
572 void *set_hca_cap;
573 int max_uc_list;
574 int err;
575
576 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL);
577 if (err)
578 return err;
579
580 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx,
581 capability);
582 memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_GENERAL]->cur,
583 MLX5_ST_SZ_BYTES(cmd_hca_cap));
584
585 mlx5_core_dbg(dev, "Current Pkey table size %d Setting new size %d\n",
586 mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(dev, pkey_table_size)),
587 128);
588 /* we limit the size of the pkey table to 128 entries for now */
589 MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size,
590 to_fw_pkey_sz(dev, 128));
591
592 /* Check log_max_qp from HCA caps to set in current profile */
593 if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) {
594 prof->log_max_qp = min_t(u8, 18, MLX5_CAP_GEN_MAX(dev, log_max_qp));
595 } else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
596 mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
597 prof->log_max_qp,
598 MLX5_CAP_GEN_MAX(dev, log_max_qp));
599 prof->log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
600 }
601 if (prof->mask & MLX5_PROF_MASK_QP_SIZE)
602 MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,
603 prof->log_max_qp);
604
605 /* disable cmdif checksum */
606 MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0);
607
608 /* Enable 4K UAR only when HCA supports it and page size is bigger
609 * than 4K.
610 */
611 if (MLX5_CAP_GEN_MAX(dev, uar_4k) && PAGE_SIZE > 4096)
612 MLX5_SET(cmd_hca_cap, set_hca_cap, uar_4k, 1);
613
614 MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12);
615
616 if (MLX5_CAP_GEN_MAX(dev, cache_line_128byte))
617 MLX5_SET(cmd_hca_cap,
618 set_hca_cap,
619 cache_line_128byte,
620 cache_line_size() >= 128 ? 1 : 0);
621
622 if (MLX5_CAP_GEN_MAX(dev, dct))
623 MLX5_SET(cmd_hca_cap, set_hca_cap, dct, 1);
624
625 if (MLX5_CAP_GEN_MAX(dev, pci_sync_for_fw_update_event))
626 MLX5_SET(cmd_hca_cap, set_hca_cap, pci_sync_for_fw_update_event, 1);
627 if (MLX5_CAP_GEN_MAX(dev, pci_sync_for_fw_update_with_driver_unload))
628 MLX5_SET(cmd_hca_cap, set_hca_cap,
629 pci_sync_for_fw_update_with_driver_unload, 1);
630
631 if (MLX5_CAP_GEN_MAX(dev, num_vhca_ports))
632 MLX5_SET(cmd_hca_cap,
633 set_hca_cap,
634 num_vhca_ports,
635 MLX5_CAP_GEN_MAX(dev, num_vhca_ports));
636
637 if (MLX5_CAP_GEN_MAX(dev, release_all_pages))
638 MLX5_SET(cmd_hca_cap, set_hca_cap, release_all_pages, 1);
639
640 if (MLX5_CAP_GEN_MAX(dev, mkey_by_name))
641 MLX5_SET(cmd_hca_cap, set_hca_cap, mkey_by_name, 1);
642
643 mlx5_vhca_state_cap_handle(dev, set_hca_cap);
644
645 if (MLX5_CAP_GEN_MAX(dev, num_total_dynamic_vf_msix))
646 MLX5_SET(cmd_hca_cap, set_hca_cap, num_total_dynamic_vf_msix,
647 MLX5_CAP_GEN_MAX(dev, num_total_dynamic_vf_msix));
648
649 if (MLX5_CAP_GEN(dev, roce_rw_supported) && MLX5_CAP_GEN_MAX(dev, roce))
650 MLX5_SET(cmd_hca_cap, set_hca_cap, roce,
651 mlx5_is_roce_on(dev));
652
653 max_uc_list = max_uc_list_get_devlink_param(dev);
654 if (max_uc_list > 0)
655 MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_current_uc_list,
656 ilog2(max_uc_list));
657
658 return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE);
659 }
660
661 /* Cached MLX5_CAP_GEN(dev, roce) can be out of sync this early in the
662 * boot process.
663 * In case RoCE cap is writable in FW and user/devlink requested to change the
664 * cap, we are yet to query the final state of the above cap.
665 * Hence, the need for this function.
666 *
667 * Returns
668 * True:
669 * 1) RoCE cap is read only in FW and already disabled
670 * OR:
671 * 2) RoCE cap is writable in FW and user/devlink requested it off.
672 *
673 * In any other case, return False.
674 */
is_roce_fw_disabled(struct mlx5_core_dev * dev)675 static bool is_roce_fw_disabled(struct mlx5_core_dev *dev)
676 {
677 return (MLX5_CAP_GEN(dev, roce_rw_supported) && !mlx5_is_roce_on(dev)) ||
678 (!MLX5_CAP_GEN(dev, roce_rw_supported) && !MLX5_CAP_GEN(dev, roce));
679 }
680
handle_hca_cap_roce(struct mlx5_core_dev * dev,void * set_ctx)681 static int handle_hca_cap_roce(struct mlx5_core_dev *dev, void *set_ctx)
682 {
683 void *set_hca_cap;
684 int err;
685
686 if (is_roce_fw_disabled(dev))
687 return 0;
688
689 err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE);
690 if (err)
691 return err;
692
693 if (MLX5_CAP_ROCE(dev, sw_r_roce_src_udp_port) ||
694 !MLX5_CAP_ROCE_MAX(dev, sw_r_roce_src_udp_port))
695 return 0;
696
697 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability);
698 memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_ROCE]->cur,
699 MLX5_ST_SZ_BYTES(roce_cap));
700 MLX5_SET(roce_cap, set_hca_cap, sw_r_roce_src_udp_port, 1);
701
702 if (MLX5_CAP_ROCE_MAX(dev, qp_ooo_transmit_default))
703 MLX5_SET(roce_cap, set_hca_cap, qp_ooo_transmit_default, 1);
704
705 err = set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ROCE);
706 return err;
707 }
708
handle_hca_cap_port_selection(struct mlx5_core_dev * dev,void * set_ctx)709 static int handle_hca_cap_port_selection(struct mlx5_core_dev *dev,
710 void *set_ctx)
711 {
712 void *set_hca_cap;
713 int err;
714
715 if (!MLX5_CAP_GEN(dev, port_selection_cap))
716 return 0;
717
718 err = mlx5_core_get_caps(dev, MLX5_CAP_PORT_SELECTION);
719 if (err)
720 return err;
721
722 if (MLX5_CAP_PORT_SELECTION(dev, port_select_flow_table_bypass) ||
723 !MLX5_CAP_PORT_SELECTION_MAX(dev, port_select_flow_table_bypass))
724 return 0;
725
726 set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability);
727 memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_PORT_SELECTION]->cur,
728 MLX5_ST_SZ_BYTES(port_selection_cap));
729 MLX5_SET(port_selection_cap, set_hca_cap, port_select_flow_table_bypass, 1);
730
731 err = set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_PORT_SELECTION);
732
733 return err;
734 }
735
set_hca_cap(struct mlx5_core_dev * dev)736 static int set_hca_cap(struct mlx5_core_dev *dev)
737 {
738 int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in);
739 void *set_ctx;
740 int err;
741
742 set_ctx = kzalloc(set_sz, GFP_KERNEL);
743 if (!set_ctx)
744 return -ENOMEM;
745
746 err = handle_hca_cap(dev, set_ctx);
747 if (err) {
748 mlx5_core_err(dev, "handle_hca_cap failed\n");
749 goto out;
750 }
751
752 memset(set_ctx, 0, set_sz);
753 err = handle_hca_cap_atomic(dev, set_ctx);
754 if (err) {
755 mlx5_core_err(dev, "handle_hca_cap_atomic failed\n");
756 goto out;
757 }
758
759 memset(set_ctx, 0, set_sz);
760 err = handle_hca_cap_odp(dev, set_ctx);
761 if (err) {
762 mlx5_core_err(dev, "handle_hca_cap_odp failed\n");
763 goto out;
764 }
765
766 memset(set_ctx, 0, set_sz);
767 err = handle_hca_cap_roce(dev, set_ctx);
768 if (err) {
769 mlx5_core_err(dev, "handle_hca_cap_roce failed\n");
770 goto out;
771 }
772
773 memset(set_ctx, 0, set_sz);
774 err = handle_hca_cap_2(dev, set_ctx);
775 if (err) {
776 mlx5_core_err(dev, "handle_hca_cap_2 failed\n");
777 goto out;
778 }
779
780 memset(set_ctx, 0, set_sz);
781 err = handle_hca_cap_port_selection(dev, set_ctx);
782 if (err) {
783 mlx5_core_err(dev, "handle_hca_cap_port_selection failed\n");
784 goto out;
785 }
786
787 out:
788 kfree(set_ctx);
789 return err;
790 }
791
set_hca_ctrl(struct mlx5_core_dev * dev)792 static int set_hca_ctrl(struct mlx5_core_dev *dev)
793 {
794 struct mlx5_reg_host_endianness he_in;
795 struct mlx5_reg_host_endianness he_out;
796 int err;
797
798 if (!mlx5_core_is_pf(dev))
799 return 0;
800
801 memset(&he_in, 0, sizeof(he_in));
802 he_in.he = MLX5_SET_HOST_ENDIANNESS;
803 err = mlx5_core_access_reg(dev, &he_in, sizeof(he_in),
804 &he_out, sizeof(he_out),
805 MLX5_REG_HOST_ENDIANNESS, 0, 1);
806 return err;
807 }
808
mlx5_core_set_hca_defaults(struct mlx5_core_dev * dev)809 static int mlx5_core_set_hca_defaults(struct mlx5_core_dev *dev)
810 {
811 int ret = 0;
812
813 /* Disable local_lb by default */
814 if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH)
815 ret = mlx5_nic_vport_update_local_lb(dev, false);
816
817 return ret;
818 }
819
mlx5_core_enable_hca(struct mlx5_core_dev * dev,u16 func_id)820 int mlx5_core_enable_hca(struct mlx5_core_dev *dev, u16 func_id)
821 {
822 u32 in[MLX5_ST_SZ_DW(enable_hca_in)] = {};
823
824 MLX5_SET(enable_hca_in, in, opcode, MLX5_CMD_OP_ENABLE_HCA);
825 MLX5_SET(enable_hca_in, in, function_id, func_id);
826 MLX5_SET(enable_hca_in, in, embedded_cpu_function,
827 dev->caps.embedded_cpu);
828 return mlx5_cmd_exec_in(dev, enable_hca, in);
829 }
830
mlx5_core_disable_hca(struct mlx5_core_dev * dev,u16 func_id)831 int mlx5_core_disable_hca(struct mlx5_core_dev *dev, u16 func_id)
832 {
833 u32 in[MLX5_ST_SZ_DW(disable_hca_in)] = {};
834
835 MLX5_SET(disable_hca_in, in, opcode, MLX5_CMD_OP_DISABLE_HCA);
836 MLX5_SET(disable_hca_in, in, function_id, func_id);
837 MLX5_SET(enable_hca_in, in, embedded_cpu_function,
838 dev->caps.embedded_cpu);
839 return mlx5_cmd_exec_in(dev, disable_hca, in);
840 }
841
mlx5_core_set_issi(struct mlx5_core_dev * dev)842 static int mlx5_core_set_issi(struct mlx5_core_dev *dev)
843 {
844 u32 query_out[MLX5_ST_SZ_DW(query_issi_out)] = {};
845 u32 query_in[MLX5_ST_SZ_DW(query_issi_in)] = {};
846 u32 sup_issi;
847 int err;
848
849 MLX5_SET(query_issi_in, query_in, opcode, MLX5_CMD_OP_QUERY_ISSI);
850 err = mlx5_cmd_exec_inout(dev, query_issi, query_in, query_out);
851 if (err) {
852 u32 syndrome = MLX5_GET(query_issi_out, query_out, syndrome);
853 u8 status = MLX5_GET(query_issi_out, query_out, status);
854
855 if (!status || syndrome == MLX5_DRIVER_SYND) {
856 mlx5_core_err(dev, "Failed to query ISSI err(%d) status(%d) synd(%d)\n",
857 err, status, syndrome);
858 return err;
859 }
860
861 mlx5_core_warn(dev, "Query ISSI is not supported by FW, ISSI is 0\n");
862 dev->issi = 0;
863 return 0;
864 }
865
866 sup_issi = MLX5_GET(query_issi_out, query_out, supported_issi_dw0);
867
868 if (sup_issi & (1 << 1)) {
869 u32 set_in[MLX5_ST_SZ_DW(set_issi_in)] = {};
870
871 MLX5_SET(set_issi_in, set_in, opcode, MLX5_CMD_OP_SET_ISSI);
872 MLX5_SET(set_issi_in, set_in, current_issi, 1);
873 err = mlx5_cmd_exec_in(dev, set_issi, set_in);
874 if (err) {
875 mlx5_core_err(dev, "Failed to set ISSI to 1 err(%d)\n",
876 err);
877 return err;
878 }
879
880 dev->issi = 1;
881
882 return 0;
883 } else if (sup_issi & (1 << 0) || !sup_issi) {
884 return 0;
885 }
886
887 return -EOPNOTSUPP;
888 }
889
mlx5_pci_init(struct mlx5_core_dev * dev,struct pci_dev * pdev,const struct pci_device_id * id)890 static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
891 const struct pci_device_id *id)
892 {
893 int err = 0;
894
895 mutex_init(&dev->pci_status_mutex);
896 pci_set_drvdata(dev->pdev, dev);
897
898 dev->bar_addr = pci_resource_start(pdev, 0);
899
900 err = mlx5_pci_enable_device(dev);
901 if (err) {
902 mlx5_core_err(dev, "Cannot enable PCI device, aborting\n");
903 return err;
904 }
905
906 err = request_bar(pdev);
907 if (err) {
908 mlx5_core_err(dev, "error requesting BARs, aborting\n");
909 goto err_disable;
910 }
911
912 pci_set_master(pdev);
913
914 err = set_dma_caps(pdev);
915 if (err) {
916 mlx5_core_err(dev, "Failed setting DMA capabilities mask, aborting\n");
917 goto err_clr_master;
918 }
919
920 if (pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP32) &&
921 pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP64) &&
922 pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP128))
923 mlx5_core_dbg(dev, "Enabling pci atomics failed\n");
924
925 dev->iseg_base = dev->bar_addr;
926 dev->iseg = ioremap(dev->iseg_base, sizeof(*dev->iseg));
927 if (!dev->iseg) {
928 err = -ENOMEM;
929 mlx5_core_err(dev, "Failed mapping initialization segment, aborting\n");
930 goto err_clr_master;
931 }
932
933 mlx5_pci_vsc_init(dev);
934 return 0;
935
936 err_clr_master:
937 release_bar(dev->pdev);
938 err_disable:
939 mlx5_pci_disable_device(dev);
940 return err;
941 }
942
mlx5_pci_close(struct mlx5_core_dev * dev)943 static void mlx5_pci_close(struct mlx5_core_dev *dev)
944 {
945 /* health work might still be active, and it needs pci bar in
946 * order to know the NIC state. Therefore, drain the health WQ
947 * before removing the pci bars
948 */
949 mlx5_drain_health_wq(dev);
950 iounmap(dev->iseg);
951 release_bar(dev->pdev);
952 mlx5_pci_disable_device(dev);
953 }
954
mlx5_init_once(struct mlx5_core_dev * dev)955 static int mlx5_init_once(struct mlx5_core_dev *dev)
956 {
957 int err;
958
959 dev->priv.devc = mlx5_devcom_register_device(dev);
960 if (IS_ERR(dev->priv.devc))
961 mlx5_core_warn(dev, "failed to register devcom device %ld\n",
962 PTR_ERR(dev->priv.devc));
963
964 err = mlx5_query_board_id(dev);
965 if (err) {
966 mlx5_core_err(dev, "query board id failed\n");
967 goto err_devcom;
968 }
969
970 err = mlx5_irq_table_init(dev);
971 if (err) {
972 mlx5_core_err(dev, "failed to initialize irq table\n");
973 goto err_devcom;
974 }
975
976 err = mlx5_eq_table_init(dev);
977 if (err) {
978 mlx5_core_err(dev, "failed to initialize eq\n");
979 goto err_irq_cleanup;
980 }
981
982 err = mlx5_events_init(dev);
983 if (err) {
984 mlx5_core_err(dev, "failed to initialize events\n");
985 goto err_eq_cleanup;
986 }
987
988 err = mlx5_fw_reset_init(dev);
989 if (err) {
990 mlx5_core_err(dev, "failed to initialize fw reset events\n");
991 goto err_events_cleanup;
992 }
993
994 mlx5_cq_debugfs_init(dev);
995
996 mlx5_init_reserved_gids(dev);
997
998 mlx5_init_clock(dev);
999
1000 dev->vxlan = mlx5_vxlan_create(dev);
1001 dev->geneve = mlx5_geneve_create(dev);
1002
1003 err = mlx5_init_rl_table(dev);
1004 if (err) {
1005 mlx5_core_err(dev, "Failed to init rate limiting\n");
1006 goto err_tables_cleanup;
1007 }
1008
1009 err = mlx5_mpfs_init(dev);
1010 if (err) {
1011 mlx5_core_err(dev, "Failed to init l2 table %d\n", err);
1012 goto err_rl_cleanup;
1013 }
1014
1015 err = mlx5_sriov_init(dev);
1016 if (err) {
1017 mlx5_core_err(dev, "Failed to init sriov %d\n", err);
1018 goto err_mpfs_cleanup;
1019 }
1020
1021 err = mlx5_eswitch_init(dev);
1022 if (err) {
1023 mlx5_core_err(dev, "Failed to init eswitch %d\n", err);
1024 goto err_sriov_cleanup;
1025 }
1026
1027 err = mlx5_fpga_init(dev);
1028 if (err) {
1029 mlx5_core_err(dev, "Failed to init fpga device %d\n", err);
1030 goto err_eswitch_cleanup;
1031 }
1032
1033 err = mlx5_vhca_event_init(dev);
1034 if (err) {
1035 mlx5_core_err(dev, "Failed to init vhca event notifier %d\n", err);
1036 goto err_fpga_cleanup;
1037 }
1038
1039 err = mlx5_sf_hw_table_init(dev);
1040 if (err) {
1041 mlx5_core_err(dev, "Failed to init SF HW table %d\n", err);
1042 goto err_sf_hw_table_cleanup;
1043 }
1044
1045 err = mlx5_sf_table_init(dev);
1046 if (err) {
1047 mlx5_core_err(dev, "Failed to init SF table %d\n", err);
1048 goto err_sf_table_cleanup;
1049 }
1050
1051 err = mlx5_fs_core_alloc(dev);
1052 if (err) {
1053 mlx5_core_err(dev, "Failed to alloc flow steering\n");
1054 goto err_fs;
1055 }
1056
1057 dev->dm = mlx5_dm_create(dev);
1058 if (IS_ERR(dev->dm))
1059 mlx5_core_warn(dev, "Failed to init device memory %ld\n", PTR_ERR(dev->dm));
1060
1061 dev->tracer = mlx5_fw_tracer_create(dev);
1062 dev->hv_vhca = mlx5_hv_vhca_create(dev);
1063 dev->rsc_dump = mlx5_rsc_dump_create(dev);
1064
1065 return 0;
1066
1067 err_fs:
1068 mlx5_sf_table_cleanup(dev);
1069 err_sf_table_cleanup:
1070 mlx5_sf_hw_table_cleanup(dev);
1071 err_sf_hw_table_cleanup:
1072 mlx5_vhca_event_cleanup(dev);
1073 err_fpga_cleanup:
1074 mlx5_fpga_cleanup(dev);
1075 err_eswitch_cleanup:
1076 mlx5_eswitch_cleanup(dev->priv.eswitch);
1077 err_sriov_cleanup:
1078 mlx5_sriov_cleanup(dev);
1079 err_mpfs_cleanup:
1080 mlx5_mpfs_cleanup(dev);
1081 err_rl_cleanup:
1082 mlx5_cleanup_rl_table(dev);
1083 err_tables_cleanup:
1084 mlx5_geneve_destroy(dev->geneve);
1085 mlx5_vxlan_destroy(dev->vxlan);
1086 mlx5_cleanup_clock(dev);
1087 mlx5_cleanup_reserved_gids(dev);
1088 mlx5_cq_debugfs_cleanup(dev);
1089 mlx5_fw_reset_cleanup(dev);
1090 err_events_cleanup:
1091 mlx5_events_cleanup(dev);
1092 err_eq_cleanup:
1093 mlx5_eq_table_cleanup(dev);
1094 err_irq_cleanup:
1095 mlx5_irq_table_cleanup(dev);
1096 err_devcom:
1097 mlx5_devcom_unregister_device(dev->priv.devc);
1098
1099 return err;
1100 }
1101
mlx5_cleanup_once(struct mlx5_core_dev * dev)1102 static void mlx5_cleanup_once(struct mlx5_core_dev *dev)
1103 {
1104 mlx5_rsc_dump_destroy(dev);
1105 mlx5_hv_vhca_destroy(dev->hv_vhca);
1106 mlx5_fw_tracer_destroy(dev->tracer);
1107 mlx5_dm_cleanup(dev);
1108 mlx5_fs_core_free(dev);
1109 mlx5_sf_table_cleanup(dev);
1110 mlx5_sf_hw_table_cleanup(dev);
1111 mlx5_vhca_event_cleanup(dev);
1112 mlx5_fpga_cleanup(dev);
1113 mlx5_eswitch_cleanup(dev->priv.eswitch);
1114 mlx5_sriov_cleanup(dev);
1115 mlx5_mpfs_cleanup(dev);
1116 mlx5_cleanup_rl_table(dev);
1117 mlx5_geneve_destroy(dev->geneve);
1118 mlx5_vxlan_destroy(dev->vxlan);
1119 mlx5_cleanup_clock(dev);
1120 mlx5_cleanup_reserved_gids(dev);
1121 mlx5_cq_debugfs_cleanup(dev);
1122 mlx5_fw_reset_cleanup(dev);
1123 mlx5_events_cleanup(dev);
1124 mlx5_eq_table_cleanup(dev);
1125 mlx5_irq_table_cleanup(dev);
1126 mlx5_devcom_unregister_device(dev->priv.devc);
1127 }
1128
mlx5_function_enable(struct mlx5_core_dev * dev,bool boot,u64 timeout)1129 static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeout)
1130 {
1131 int err;
1132
1133 mlx5_core_info(dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev),
1134 fw_rev_min(dev), fw_rev_sub(dev));
1135
1136 /* Only PFs hold the relevant PCIe information for this query */
1137 if (mlx5_core_is_pf(dev))
1138 pcie_print_link_status(dev->pdev);
1139
1140 /* wait for firmware to accept initialization segments configurations
1141 */
1142 err = wait_fw_init(dev, timeout,
1143 mlx5_tout_ms(dev, FW_PRE_INIT_WARN_MESSAGE_INTERVAL));
1144 if (err) {
1145 mlx5_core_err(dev, "Firmware over %llu MS in pre-initializing state, aborting\n",
1146 timeout);
1147 return err;
1148 }
1149
1150 err = mlx5_cmd_enable(dev);
1151 if (err) {
1152 mlx5_core_err(dev, "Failed initializing command interface, aborting\n");
1153 return err;
1154 }
1155
1156 mlx5_tout_query_iseg(dev);
1157
1158 err = wait_fw_init(dev, mlx5_tout_ms(dev, FW_INIT), 0);
1159 if (err) {
1160 mlx5_core_err(dev, "Firmware over %llu MS in initializing state, aborting\n",
1161 mlx5_tout_ms(dev, FW_INIT));
1162 goto err_cmd_cleanup;
1163 }
1164
1165 dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev);
1166 mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP);
1167
1168 mlx5_start_health_poll(dev);
1169
1170 err = mlx5_core_enable_hca(dev, 0);
1171 if (err) {
1172 mlx5_core_err(dev, "enable hca failed\n");
1173 goto stop_health_poll;
1174 }
1175
1176 err = mlx5_core_set_issi(dev);
1177 if (err) {
1178 mlx5_core_err(dev, "failed to set issi\n");
1179 goto err_disable_hca;
1180 }
1181
1182 err = mlx5_satisfy_startup_pages(dev, 1);
1183 if (err) {
1184 mlx5_core_err(dev, "failed to allocate boot pages\n");
1185 goto err_disable_hca;
1186 }
1187
1188 err = mlx5_tout_query_dtor(dev);
1189 if (err) {
1190 mlx5_core_err(dev, "failed to read dtor\n");
1191 goto reclaim_boot_pages;
1192 }
1193
1194 return 0;
1195
1196 reclaim_boot_pages:
1197 mlx5_reclaim_startup_pages(dev);
1198 err_disable_hca:
1199 mlx5_core_disable_hca(dev, 0);
1200 stop_health_poll:
1201 mlx5_stop_health_poll(dev, boot);
1202 err_cmd_cleanup:
1203 mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
1204 mlx5_cmd_disable(dev);
1205
1206 return err;
1207 }
1208
mlx5_function_disable(struct mlx5_core_dev * dev,bool boot)1209 static void mlx5_function_disable(struct mlx5_core_dev *dev, bool boot)
1210 {
1211 mlx5_reclaim_startup_pages(dev);
1212 mlx5_core_disable_hca(dev, 0);
1213 mlx5_stop_health_poll(dev, boot);
1214 mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN);
1215 mlx5_cmd_disable(dev);
1216 }
1217
mlx5_function_open(struct mlx5_core_dev * dev)1218 static int mlx5_function_open(struct mlx5_core_dev *dev)
1219 {
1220 int err;
1221
1222 err = set_hca_ctrl(dev);
1223 if (err) {
1224 mlx5_core_err(dev, "set_hca_ctrl failed\n");
1225 return err;
1226 }
1227
1228 err = set_hca_cap(dev);
1229 if (err) {
1230 mlx5_core_err(dev, "set_hca_cap failed\n");
1231 return err;
1232 }
1233
1234 err = mlx5_satisfy_startup_pages(dev, 0);
1235 if (err) {
1236 mlx5_core_err(dev, "failed to allocate init pages\n");
1237 return err;
1238 }
1239
1240 err = mlx5_cmd_init_hca(dev, sw_owner_id);
1241 if (err) {
1242 mlx5_core_err(dev, "init hca failed\n");
1243 return err;
1244 }
1245
1246 mlx5_set_driver_version(dev);
1247
1248 err = mlx5_query_hca_caps(dev);
1249 if (err) {
1250 mlx5_core_err(dev, "query hca failed\n");
1251 return err;
1252 }
1253 mlx5_start_health_fw_log_up(dev);
1254 return 0;
1255 }
1256
mlx5_function_close(struct mlx5_core_dev * dev)1257 static int mlx5_function_close(struct mlx5_core_dev *dev)
1258 {
1259 int err;
1260
1261 err = mlx5_cmd_teardown_hca(dev);
1262 if (err) {
1263 mlx5_core_err(dev, "tear_down_hca failed, skip cleanup\n");
1264 return err;
1265 }
1266
1267 return 0;
1268 }
1269
mlx5_function_setup(struct mlx5_core_dev * dev,bool boot,u64 timeout)1270 static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout)
1271 {
1272 int err;
1273
1274 err = mlx5_function_enable(dev, boot, timeout);
1275 if (err)
1276 return err;
1277
1278 err = mlx5_function_open(dev);
1279 if (err)
1280 mlx5_function_disable(dev, boot);
1281 return err;
1282 }
1283
mlx5_function_teardown(struct mlx5_core_dev * dev,bool boot)1284 static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot)
1285 {
1286 int err = mlx5_function_close(dev);
1287
1288 if (!err)
1289 mlx5_function_disable(dev, boot);
1290 else
1291 mlx5_stop_health_poll(dev, boot);
1292
1293 return err;
1294 }
1295
mlx5_load(struct mlx5_core_dev * dev)1296 static int mlx5_load(struct mlx5_core_dev *dev)
1297 {
1298 int err;
1299
1300 dev->priv.uar = mlx5_get_uars_page(dev);
1301 if (IS_ERR(dev->priv.uar)) {
1302 mlx5_core_err(dev, "Failed allocating uar, aborting\n");
1303 err = PTR_ERR(dev->priv.uar);
1304 return err;
1305 }
1306
1307 mlx5_events_start(dev);
1308 mlx5_pagealloc_start(dev);
1309
1310 err = mlx5_irq_table_create(dev);
1311 if (err) {
1312 mlx5_core_err(dev, "Failed to alloc IRQs\n");
1313 goto err_irq_table;
1314 }
1315
1316 err = mlx5_eq_table_create(dev);
1317 if (err) {
1318 mlx5_core_err(dev, "Failed to create EQs\n");
1319 goto err_eq_table;
1320 }
1321
1322 err = mlx5_fw_tracer_init(dev->tracer);
1323 if (err) {
1324 mlx5_core_err(dev, "Failed to init FW tracer %d\n", err);
1325 mlx5_fw_tracer_destroy(dev->tracer);
1326 dev->tracer = NULL;
1327 }
1328
1329 mlx5_fw_reset_events_start(dev);
1330 mlx5_hv_vhca_init(dev->hv_vhca);
1331
1332 err = mlx5_rsc_dump_init(dev);
1333 if (err) {
1334 mlx5_core_err(dev, "Failed to init Resource dump %d\n", err);
1335 mlx5_rsc_dump_destroy(dev);
1336 dev->rsc_dump = NULL;
1337 }
1338
1339 err = mlx5_fpga_device_start(dev);
1340 if (err) {
1341 mlx5_core_err(dev, "fpga device start failed %d\n", err);
1342 goto err_fpga_start;
1343 }
1344
1345 err = mlx5_fs_core_init(dev);
1346 if (err) {
1347 mlx5_core_err(dev, "Failed to init flow steering\n");
1348 goto err_fs;
1349 }
1350
1351 err = mlx5_core_set_hca_defaults(dev);
1352 if (err) {
1353 mlx5_core_err(dev, "Failed to set hca defaults\n");
1354 goto err_set_hca;
1355 }
1356
1357 mlx5_vhca_event_start(dev);
1358
1359 err = mlx5_sf_hw_table_create(dev);
1360 if (err) {
1361 mlx5_core_err(dev, "sf table create failed %d\n", err);
1362 goto err_vhca;
1363 }
1364
1365 err = mlx5_ec_init(dev);
1366 if (err) {
1367 mlx5_core_err(dev, "Failed to init embedded CPU\n");
1368 goto err_ec;
1369 }
1370
1371 mlx5_lag_add_mdev(dev);
1372 err = mlx5_sriov_attach(dev);
1373 if (err) {
1374 mlx5_core_err(dev, "sriov init failed %d\n", err);
1375 goto err_sriov;
1376 }
1377
1378 mlx5_sf_dev_table_create(dev);
1379
1380 err = mlx5_devlink_traps_register(priv_to_devlink(dev));
1381 if (err)
1382 goto err_traps_reg;
1383
1384 return 0;
1385
1386 err_traps_reg:
1387 mlx5_sf_dev_table_destroy(dev);
1388 mlx5_sriov_detach(dev);
1389 err_sriov:
1390 mlx5_lag_remove_mdev(dev);
1391 mlx5_ec_cleanup(dev);
1392 err_ec:
1393 mlx5_sf_hw_table_destroy(dev);
1394 err_vhca:
1395 mlx5_vhca_event_stop(dev);
1396 err_set_hca:
1397 mlx5_fs_core_cleanup(dev);
1398 err_fs:
1399 mlx5_fpga_device_stop(dev);
1400 err_fpga_start:
1401 mlx5_rsc_dump_cleanup(dev);
1402 mlx5_hv_vhca_cleanup(dev->hv_vhca);
1403 mlx5_fw_reset_events_stop(dev);
1404 mlx5_fw_tracer_cleanup(dev->tracer);
1405 mlx5_eq_table_destroy(dev);
1406 err_eq_table:
1407 mlx5_irq_table_destroy(dev);
1408 err_irq_table:
1409 mlx5_pagealloc_stop(dev);
1410 mlx5_events_stop(dev);
1411 mlx5_put_uars_page(dev, dev->priv.uar);
1412 return err;
1413 }
1414
mlx5_unload(struct mlx5_core_dev * dev)1415 static void mlx5_unload(struct mlx5_core_dev *dev)
1416 {
1417 mlx5_devlink_traps_unregister(priv_to_devlink(dev));
1418 mlx5_sf_dev_table_destroy(dev);
1419 mlx5_eswitch_disable(dev->priv.eswitch);
1420 mlx5_sriov_detach(dev);
1421 mlx5_lag_remove_mdev(dev);
1422 mlx5_ec_cleanup(dev);
1423 mlx5_sf_hw_table_destroy(dev);
1424 mlx5_vhca_event_stop(dev);
1425 mlx5_fs_core_cleanup(dev);
1426 mlx5_fpga_device_stop(dev);
1427 mlx5_rsc_dump_cleanup(dev);
1428 mlx5_hv_vhca_cleanup(dev->hv_vhca);
1429 mlx5_fw_reset_events_stop(dev);
1430 mlx5_fw_tracer_cleanup(dev->tracer);
1431 mlx5_eq_table_destroy(dev);
1432 mlx5_irq_table_destroy(dev);
1433 mlx5_pagealloc_stop(dev);
1434 mlx5_events_stop(dev);
1435 mlx5_put_uars_page(dev, dev->priv.uar);
1436 }
1437
mlx5_init_one_devl_locked(struct mlx5_core_dev * dev)1438 int mlx5_init_one_devl_locked(struct mlx5_core_dev *dev)
1439 {
1440 bool light_probe = mlx5_dev_is_lightweight(dev);
1441 int err = 0;
1442
1443 mutex_lock(&dev->intf_state_mutex);
1444 dev->state = MLX5_DEVICE_STATE_UP;
1445
1446 err = mlx5_function_setup(dev, true, mlx5_tout_ms(dev, FW_PRE_INIT_TIMEOUT));
1447 if (err)
1448 goto err_function;
1449
1450 err = mlx5_init_once(dev);
1451 if (err) {
1452 mlx5_core_err(dev, "sw objs init failed\n");
1453 goto function_teardown;
1454 }
1455
1456 /* In case of light_probe, mlx5_devlink is already registered.
1457 * Hence, don't register devlink again.
1458 */
1459 if (!light_probe) {
1460 err = mlx5_devlink_params_register(priv_to_devlink(dev));
1461 if (err)
1462 goto err_devlink_params_reg;
1463 }
1464
1465 err = mlx5_load(dev);
1466 if (err)
1467 goto err_load;
1468
1469 set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1470
1471 err = mlx5_register_device(dev);
1472 if (err)
1473 goto err_register;
1474
1475 err = mlx5_crdump_enable(dev);
1476 if (err)
1477 mlx5_core_err(dev, "mlx5_crdump_enable failed with error code %d\n", err);
1478
1479 err = mlx5_hwmon_dev_register(dev);
1480 if (err)
1481 mlx5_core_err(dev, "mlx5_hwmon_dev_register failed with error code %d\n", err);
1482
1483 mutex_unlock(&dev->intf_state_mutex);
1484 return 0;
1485
1486 err_register:
1487 clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1488 mlx5_unload(dev);
1489 err_load:
1490 if (!light_probe)
1491 mlx5_devlink_params_unregister(priv_to_devlink(dev));
1492 err_devlink_params_reg:
1493 mlx5_cleanup_once(dev);
1494 function_teardown:
1495 mlx5_function_teardown(dev, true);
1496 err_function:
1497 dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
1498 mutex_unlock(&dev->intf_state_mutex);
1499 return err;
1500 }
1501
mlx5_init_one(struct mlx5_core_dev * dev)1502 int mlx5_init_one(struct mlx5_core_dev *dev)
1503 {
1504 struct devlink *devlink = priv_to_devlink(dev);
1505 int err;
1506
1507 devl_lock(devlink);
1508 devl_register(devlink);
1509 err = mlx5_init_one_devl_locked(dev);
1510 if (err)
1511 devl_unregister(devlink);
1512 devl_unlock(devlink);
1513 return err;
1514 }
1515
mlx5_uninit_one(struct mlx5_core_dev * dev)1516 void mlx5_uninit_one(struct mlx5_core_dev *dev)
1517 {
1518 struct devlink *devlink = priv_to_devlink(dev);
1519
1520 devl_lock(devlink);
1521 mutex_lock(&dev->intf_state_mutex);
1522
1523 mlx5_hwmon_dev_unregister(dev);
1524 mlx5_crdump_disable(dev);
1525 mlx5_unregister_device(dev);
1526
1527 if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
1528 mlx5_core_warn(dev, "%s: interface is down, NOP\n",
1529 __func__);
1530 mlx5_devlink_params_unregister(priv_to_devlink(dev));
1531 mlx5_cleanup_once(dev);
1532 goto out;
1533 }
1534
1535 clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1536 mlx5_unload(dev);
1537 mlx5_devlink_params_unregister(priv_to_devlink(dev));
1538 mlx5_cleanup_once(dev);
1539 mlx5_function_teardown(dev, true);
1540 out:
1541 mutex_unlock(&dev->intf_state_mutex);
1542 devl_unregister(devlink);
1543 devl_unlock(devlink);
1544 }
1545
mlx5_load_one_devl_locked(struct mlx5_core_dev * dev,bool recovery)1546 int mlx5_load_one_devl_locked(struct mlx5_core_dev *dev, bool recovery)
1547 {
1548 int err = 0;
1549 u64 timeout;
1550
1551 devl_assert_locked(priv_to_devlink(dev));
1552 mutex_lock(&dev->intf_state_mutex);
1553 if (test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
1554 mlx5_core_warn(dev, "interface is up, NOP\n");
1555 goto out;
1556 }
1557 /* remove any previous indication of internal error */
1558 dev->state = MLX5_DEVICE_STATE_UP;
1559
1560 if (recovery)
1561 timeout = mlx5_tout_ms(dev, FW_PRE_INIT_ON_RECOVERY_TIMEOUT);
1562 else
1563 timeout = mlx5_tout_ms(dev, FW_PRE_INIT_TIMEOUT);
1564 err = mlx5_function_setup(dev, false, timeout);
1565 if (err)
1566 goto err_function;
1567
1568 err = mlx5_load(dev);
1569 if (err)
1570 goto err_load;
1571
1572 set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1573
1574 err = mlx5_attach_device(dev);
1575 if (err)
1576 goto err_attach;
1577
1578 mutex_unlock(&dev->intf_state_mutex);
1579 return 0;
1580
1581 err_attach:
1582 clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1583 mlx5_unload(dev);
1584 err_load:
1585 mlx5_function_teardown(dev, false);
1586 err_function:
1587 dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
1588 out:
1589 mutex_unlock(&dev->intf_state_mutex);
1590 return err;
1591 }
1592
mlx5_load_one(struct mlx5_core_dev * dev,bool recovery)1593 int mlx5_load_one(struct mlx5_core_dev *dev, bool recovery)
1594 {
1595 struct devlink *devlink = priv_to_devlink(dev);
1596 int ret;
1597
1598 devl_lock(devlink);
1599 ret = mlx5_load_one_devl_locked(dev, recovery);
1600 devl_unlock(devlink);
1601 return ret;
1602 }
1603
mlx5_unload_one_devl_locked(struct mlx5_core_dev * dev,bool suspend)1604 void mlx5_unload_one_devl_locked(struct mlx5_core_dev *dev, bool suspend)
1605 {
1606 devl_assert_locked(priv_to_devlink(dev));
1607 mutex_lock(&dev->intf_state_mutex);
1608
1609 mlx5_detach_device(dev, suspend);
1610
1611 if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
1612 mlx5_core_warn(dev, "%s: interface is down, NOP\n",
1613 __func__);
1614 goto out;
1615 }
1616
1617 clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
1618 mlx5_unload(dev);
1619 mlx5_function_teardown(dev, false);
1620 out:
1621 mutex_unlock(&dev->intf_state_mutex);
1622 }
1623
mlx5_unload_one(struct mlx5_core_dev * dev,bool suspend)1624 void mlx5_unload_one(struct mlx5_core_dev *dev, bool suspend)
1625 {
1626 struct devlink *devlink = priv_to_devlink(dev);
1627
1628 devl_lock(devlink);
1629 mlx5_unload_one_devl_locked(dev, suspend);
1630 devl_unlock(devlink);
1631 }
1632
1633 /* In case of light probe, we don't need a full query of hca_caps, but only the bellow caps.
1634 * A full query of hca_caps will be done when the device will reload.
1635 */
mlx5_query_hca_caps_light(struct mlx5_core_dev * dev)1636 static int mlx5_query_hca_caps_light(struct mlx5_core_dev *dev)
1637 {
1638 int err;
1639
1640 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL);
1641 if (err)
1642 return err;
1643
1644 if (MLX5_CAP_GEN(dev, eth_net_offloads)) {
1645 err = mlx5_core_get_caps_mode(dev, MLX5_CAP_ETHERNET_OFFLOADS,
1646 HCA_CAP_OPMOD_GET_CUR);
1647 if (err)
1648 return err;
1649 }
1650
1651 if (MLX5_CAP_GEN(dev, nic_flow_table) ||
1652 MLX5_CAP_GEN(dev, ipoib_enhanced_offloads)) {
1653 err = mlx5_core_get_caps_mode(dev, MLX5_CAP_FLOW_TABLE,
1654 HCA_CAP_OPMOD_GET_CUR);
1655 if (err)
1656 return err;
1657 }
1658
1659 if (MLX5_CAP_GEN_64(dev, general_obj_types) &
1660 MLX5_GENERAL_OBJ_TYPES_CAP_VIRTIO_NET_Q) {
1661 err = mlx5_core_get_caps_mode(dev, MLX5_CAP_VDPA_EMULATION,
1662 HCA_CAP_OPMOD_GET_CUR);
1663 if (err)
1664 return err;
1665 }
1666
1667 return 0;
1668 }
1669
mlx5_init_one_light(struct mlx5_core_dev * dev)1670 int mlx5_init_one_light(struct mlx5_core_dev *dev)
1671 {
1672 struct devlink *devlink = priv_to_devlink(dev);
1673 int err;
1674
1675 dev->state = MLX5_DEVICE_STATE_UP;
1676 err = mlx5_function_enable(dev, true, mlx5_tout_ms(dev, FW_PRE_INIT_TIMEOUT));
1677 if (err) {
1678 mlx5_core_warn(dev, "mlx5_function_enable err=%d\n", err);
1679 goto out;
1680 }
1681
1682 err = mlx5_query_hca_caps_light(dev);
1683 if (err) {
1684 mlx5_core_warn(dev, "mlx5_query_hca_caps_light err=%d\n", err);
1685 goto query_hca_caps_err;
1686 }
1687
1688 devl_lock(devlink);
1689 devl_register(devlink);
1690
1691 err = mlx5_devlink_params_register(priv_to_devlink(dev));
1692 if (err) {
1693 mlx5_core_warn(dev, "mlx5_devlink_param_reg err = %d\n", err);
1694 goto query_hca_caps_err;
1695 }
1696
1697 devl_unlock(devlink);
1698 return 0;
1699
1700 query_hca_caps_err:
1701 devl_unregister(devlink);
1702 devl_unlock(devlink);
1703 mlx5_function_disable(dev, true);
1704 out:
1705 dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
1706 return err;
1707 }
1708
mlx5_uninit_one_light(struct mlx5_core_dev * dev)1709 void mlx5_uninit_one_light(struct mlx5_core_dev *dev)
1710 {
1711 struct devlink *devlink = priv_to_devlink(dev);
1712
1713 devl_lock(devlink);
1714 mlx5_devlink_params_unregister(priv_to_devlink(dev));
1715 devl_unregister(devlink);
1716 devl_unlock(devlink);
1717 if (dev->state != MLX5_DEVICE_STATE_UP)
1718 return;
1719 mlx5_function_disable(dev, true);
1720 }
1721
1722 /* xxx_light() function are used in order to configure the device without full
1723 * init (light init). e.g.: There isn't a point in reload a device to light state.
1724 * Hence, mlx5_load_one_light() isn't needed.
1725 */
1726
mlx5_unload_one_light(struct mlx5_core_dev * dev)1727 void mlx5_unload_one_light(struct mlx5_core_dev *dev)
1728 {
1729 if (dev->state != MLX5_DEVICE_STATE_UP)
1730 return;
1731 mlx5_function_disable(dev, false);
1732 dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
1733 }
1734
1735 static const int types[] = {
1736 MLX5_CAP_GENERAL,
1737 MLX5_CAP_GENERAL_2,
1738 MLX5_CAP_ETHERNET_OFFLOADS,
1739 MLX5_CAP_IPOIB_ENHANCED_OFFLOADS,
1740 MLX5_CAP_ODP,
1741 MLX5_CAP_ATOMIC,
1742 MLX5_CAP_ROCE,
1743 MLX5_CAP_IPOIB_OFFLOADS,
1744 MLX5_CAP_FLOW_TABLE,
1745 MLX5_CAP_ESWITCH_FLOW_TABLE,
1746 MLX5_CAP_ESWITCH,
1747 MLX5_CAP_QOS,
1748 MLX5_CAP_DEBUG,
1749 MLX5_CAP_DEV_MEM,
1750 MLX5_CAP_DEV_EVENT,
1751 MLX5_CAP_TLS,
1752 MLX5_CAP_VDPA_EMULATION,
1753 MLX5_CAP_IPSEC,
1754 MLX5_CAP_PORT_SELECTION,
1755 MLX5_CAP_MACSEC,
1756 MLX5_CAP_ADV_VIRTUALIZATION,
1757 MLX5_CAP_CRYPTO,
1758 };
1759
mlx5_hca_caps_free(struct mlx5_core_dev * dev)1760 static void mlx5_hca_caps_free(struct mlx5_core_dev *dev)
1761 {
1762 int type;
1763 int i;
1764
1765 for (i = 0; i < ARRAY_SIZE(types); i++) {
1766 type = types[i];
1767 kfree(dev->caps.hca[type]);
1768 }
1769 }
1770
mlx5_hca_caps_alloc(struct mlx5_core_dev * dev)1771 static int mlx5_hca_caps_alloc(struct mlx5_core_dev *dev)
1772 {
1773 struct mlx5_hca_cap *cap;
1774 int type;
1775 int i;
1776
1777 for (i = 0; i < ARRAY_SIZE(types); i++) {
1778 cap = kzalloc(sizeof(*cap), GFP_KERNEL);
1779 if (!cap)
1780 goto err;
1781 type = types[i];
1782 dev->caps.hca[type] = cap;
1783 }
1784
1785 return 0;
1786
1787 err:
1788 mlx5_hca_caps_free(dev);
1789 return -ENOMEM;
1790 }
1791
vhca_id_show(struct seq_file * file,void * priv)1792 static int vhca_id_show(struct seq_file *file, void *priv)
1793 {
1794 struct mlx5_core_dev *dev = file->private;
1795
1796 seq_printf(file, "0x%x\n", MLX5_CAP_GEN(dev, vhca_id));
1797 return 0;
1798 }
1799
1800 DEFINE_SHOW_ATTRIBUTE(vhca_id);
1801
mlx5_mdev_init(struct mlx5_core_dev * dev,int profile_idx)1802 int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx)
1803 {
1804 struct mlx5_priv *priv = &dev->priv;
1805 int err;
1806
1807 memcpy(&dev->profile, &profile[profile_idx], sizeof(dev->profile));
1808 lockdep_register_key(&dev->lock_key);
1809 mutex_init(&dev->intf_state_mutex);
1810 lockdep_set_class(&dev->intf_state_mutex, &dev->lock_key);
1811 mutex_init(&dev->mlx5e_res.uplink_netdev_lock);
1812
1813 mutex_init(&priv->bfregs.reg_head.lock);
1814 mutex_init(&priv->bfregs.wc_head.lock);
1815 INIT_LIST_HEAD(&priv->bfregs.reg_head.list);
1816 INIT_LIST_HEAD(&priv->bfregs.wc_head.list);
1817
1818 mutex_init(&priv->alloc_mutex);
1819 mutex_init(&priv->pgdir_mutex);
1820 INIT_LIST_HEAD(&priv->pgdir_list);
1821
1822 priv->numa_node = dev_to_node(mlx5_core_dma_dev(dev));
1823 priv->dbg.dbg_root = debugfs_create_dir(dev_name(dev->device),
1824 mlx5_debugfs_root);
1825 debugfs_create_file("vhca_id", 0400, priv->dbg.dbg_root, dev, &vhca_id_fops);
1826 INIT_LIST_HEAD(&priv->traps);
1827
1828 err = mlx5_cmd_init(dev);
1829 if (err) {
1830 mlx5_core_err(dev, "Failed initializing cmdif SW structs, aborting\n");
1831 goto err_cmd_init;
1832 }
1833
1834 err = mlx5_tout_init(dev);
1835 if (err) {
1836 mlx5_core_err(dev, "Failed initializing timeouts, aborting\n");
1837 goto err_timeout_init;
1838 }
1839
1840 err = mlx5_health_init(dev);
1841 if (err)
1842 goto err_health_init;
1843
1844 err = mlx5_pagealloc_init(dev);
1845 if (err)
1846 goto err_pagealloc_init;
1847
1848 err = mlx5_adev_init(dev);
1849 if (err)
1850 goto err_adev_init;
1851
1852 err = mlx5_hca_caps_alloc(dev);
1853 if (err)
1854 goto err_hca_caps;
1855
1856 /* The conjunction of sw_vhca_id with sw_owner_id will be a global
1857 * unique id per function which uses mlx5_core.
1858 * Those values are supplied to FW as part of the init HCA command to
1859 * be used by both driver and FW when it's applicable.
1860 */
1861 dev->priv.sw_vhca_id = ida_alloc_range(&sw_vhca_ida, 1,
1862 MAX_SW_VHCA_ID,
1863 GFP_KERNEL);
1864 if (dev->priv.sw_vhca_id < 0)
1865 mlx5_core_err(dev, "failed to allocate sw_vhca_id, err=%d\n",
1866 dev->priv.sw_vhca_id);
1867
1868 return 0;
1869
1870 err_hca_caps:
1871 mlx5_adev_cleanup(dev);
1872 err_adev_init:
1873 mlx5_pagealloc_cleanup(dev);
1874 err_pagealloc_init:
1875 mlx5_health_cleanup(dev);
1876 err_health_init:
1877 mlx5_tout_cleanup(dev);
1878 err_timeout_init:
1879 mlx5_cmd_cleanup(dev);
1880 err_cmd_init:
1881 debugfs_remove(dev->priv.dbg.dbg_root);
1882 mutex_destroy(&priv->pgdir_mutex);
1883 mutex_destroy(&priv->alloc_mutex);
1884 mutex_destroy(&priv->bfregs.wc_head.lock);
1885 mutex_destroy(&priv->bfregs.reg_head.lock);
1886 mutex_destroy(&dev->intf_state_mutex);
1887 lockdep_unregister_key(&dev->lock_key);
1888 return err;
1889 }
1890
mlx5_mdev_uninit(struct mlx5_core_dev * dev)1891 void mlx5_mdev_uninit(struct mlx5_core_dev *dev)
1892 {
1893 struct mlx5_priv *priv = &dev->priv;
1894
1895 if (priv->sw_vhca_id > 0)
1896 ida_free(&sw_vhca_ida, dev->priv.sw_vhca_id);
1897
1898 mlx5_hca_caps_free(dev);
1899 mlx5_adev_cleanup(dev);
1900 mlx5_pagealloc_cleanup(dev);
1901 mlx5_health_cleanup(dev);
1902 mlx5_tout_cleanup(dev);
1903 mlx5_cmd_cleanup(dev);
1904 debugfs_remove_recursive(dev->priv.dbg.dbg_root);
1905 mutex_destroy(&priv->pgdir_mutex);
1906 mutex_destroy(&priv->alloc_mutex);
1907 mutex_destroy(&priv->bfregs.wc_head.lock);
1908 mutex_destroy(&priv->bfregs.reg_head.lock);
1909 mutex_destroy(&dev->mlx5e_res.uplink_netdev_lock);
1910 mutex_destroy(&dev->intf_state_mutex);
1911 lockdep_unregister_key(&dev->lock_key);
1912 }
1913
probe_one(struct pci_dev * pdev,const struct pci_device_id * id)1914 static int probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1915 {
1916 struct mlx5_core_dev *dev;
1917 struct devlink *devlink;
1918 int err;
1919
1920 devlink = mlx5_devlink_alloc(&pdev->dev);
1921 if (!devlink) {
1922 dev_err(&pdev->dev, "devlink alloc failed\n");
1923 return -ENOMEM;
1924 }
1925
1926 dev = devlink_priv(devlink);
1927 dev->device = &pdev->dev;
1928 dev->pdev = pdev;
1929
1930 dev->coredev_type = id->driver_data & MLX5_PCI_DEV_IS_VF ?
1931 MLX5_COREDEV_VF : MLX5_COREDEV_PF;
1932
1933 dev->priv.adev_idx = mlx5_adev_idx_alloc();
1934 if (dev->priv.adev_idx < 0) {
1935 err = dev->priv.adev_idx;
1936 goto adev_init_err;
1937 }
1938
1939 err = mlx5_mdev_init(dev, prof_sel);
1940 if (err)
1941 goto mdev_init_err;
1942
1943 err = mlx5_pci_init(dev, pdev, id);
1944 if (err) {
1945 mlx5_core_err(dev, "mlx5_pci_init failed with error code %d\n",
1946 err);
1947 goto pci_init_err;
1948 }
1949
1950 err = mlx5_init_one(dev);
1951 if (err) {
1952 mlx5_core_err(dev, "mlx5_init_one failed with error code %d\n",
1953 err);
1954 goto err_init_one;
1955 }
1956
1957 pci_save_state(pdev);
1958 return 0;
1959
1960 err_init_one:
1961 mlx5_pci_close(dev);
1962 pci_init_err:
1963 mlx5_mdev_uninit(dev);
1964 mdev_init_err:
1965 mlx5_adev_idx_free(dev->priv.adev_idx);
1966 adev_init_err:
1967 mlx5_devlink_free(devlink);
1968
1969 return err;
1970 }
1971
remove_one(struct pci_dev * pdev)1972 static void remove_one(struct pci_dev *pdev)
1973 {
1974 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
1975 struct devlink *devlink = priv_to_devlink(dev);
1976
1977 set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state);
1978 mlx5_drain_fw_reset(dev);
1979 mlx5_drain_health_wq(dev);
1980 mlx5_sriov_disable(pdev, false);
1981 mlx5_uninit_one(dev);
1982 mlx5_pci_close(dev);
1983 mlx5_mdev_uninit(dev);
1984 mlx5_adev_idx_free(dev->priv.adev_idx);
1985 mlx5_devlink_free(devlink);
1986 }
1987
1988 #define mlx5_pci_trace(dev, fmt, ...) ({ \
1989 struct mlx5_core_dev *__dev = (dev); \
1990 mlx5_core_info(__dev, "%s Device state = %d health sensors: %d pci_status: %d. " fmt, \
1991 __func__, __dev->state, mlx5_health_check_fatal_sensors(__dev), \
1992 __dev->pci_status, ##__VA_ARGS__); \
1993 })
1994
result2str(enum pci_ers_result result)1995 static const char *result2str(enum pci_ers_result result)
1996 {
1997 return result == PCI_ERS_RESULT_NEED_RESET ? "need reset" :
1998 result == PCI_ERS_RESULT_DISCONNECT ? "disconnect" :
1999 result == PCI_ERS_RESULT_RECOVERED ? "recovered" :
2000 "unknown";
2001 }
2002
mlx5_pci_err_detected(struct pci_dev * pdev,pci_channel_state_t state)2003 static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev,
2004 pci_channel_state_t state)
2005 {
2006 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2007 enum pci_ers_result res;
2008
2009 mlx5_pci_trace(dev, "Enter, pci channel state = %d\n", state);
2010
2011 mlx5_enter_error_state(dev, false);
2012 mlx5_error_sw_reset(dev);
2013 mlx5_unload_one(dev, false);
2014 mlx5_drain_health_wq(dev);
2015 mlx5_pci_disable_device(dev);
2016
2017 res = state == pci_channel_io_perm_failure ?
2018 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
2019
2020 mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, result = %d, %s\n",
2021 __func__, dev->state, dev->pci_status, res, result2str(res));
2022 return res;
2023 }
2024
2025 /* wait for the device to show vital signs by waiting
2026 * for the health counter to start counting.
2027 */
wait_vital(struct pci_dev * pdev)2028 static int wait_vital(struct pci_dev *pdev)
2029 {
2030 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2031 struct mlx5_core_health *health = &dev->priv.health;
2032 const int niter = 100;
2033 u32 last_count = 0;
2034 u32 count;
2035 int i;
2036
2037 for (i = 0; i < niter; i++) {
2038 count = ioread32be(health->health_counter);
2039 if (count && count != 0xffffffff) {
2040 if (last_count && last_count != count) {
2041 mlx5_core_info(dev,
2042 "wait vital counter value 0x%x after %d iterations\n",
2043 count, i);
2044 return 0;
2045 }
2046 last_count = count;
2047 }
2048 msleep(50);
2049 }
2050
2051 return -ETIMEDOUT;
2052 }
2053
mlx5_pci_slot_reset(struct pci_dev * pdev)2054 static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)
2055 {
2056 enum pci_ers_result res = PCI_ERS_RESULT_DISCONNECT;
2057 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2058 int err;
2059
2060 mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Enter\n",
2061 __func__, dev->state, dev->pci_status);
2062
2063 err = mlx5_pci_enable_device(dev);
2064 if (err) {
2065 mlx5_core_err(dev, "%s: mlx5_pci_enable_device failed with error code: %d\n",
2066 __func__, err);
2067 goto out;
2068 }
2069
2070 pci_set_master(pdev);
2071 pci_restore_state(pdev);
2072 pci_save_state(pdev);
2073
2074 err = wait_vital(pdev);
2075 if (err) {
2076 mlx5_core_err(dev, "%s: wait vital failed with error code: %d\n",
2077 __func__, err);
2078 goto out;
2079 }
2080
2081 res = PCI_ERS_RESULT_RECOVERED;
2082 out:
2083 mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, err = %d, result = %d, %s\n",
2084 __func__, dev->state, dev->pci_status, err, res, result2str(res));
2085 return res;
2086 }
2087
mlx5_pci_resume(struct pci_dev * pdev)2088 static void mlx5_pci_resume(struct pci_dev *pdev)
2089 {
2090 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2091 int err;
2092
2093 mlx5_pci_trace(dev, "Enter, loading driver..\n");
2094
2095 err = mlx5_load_one(dev, false);
2096
2097 if (!err)
2098 devlink_health_reporter_state_update(dev->priv.health.fw_fatal_reporter,
2099 DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
2100
2101 mlx5_pci_trace(dev, "Done, err = %d, device %s\n", err,
2102 !err ? "recovered" : "Failed");
2103 }
2104
2105 static const struct pci_error_handlers mlx5_err_handler = {
2106 .error_detected = mlx5_pci_err_detected,
2107 .slot_reset = mlx5_pci_slot_reset,
2108 .resume = mlx5_pci_resume
2109 };
2110
mlx5_try_fast_unload(struct mlx5_core_dev * dev)2111 static int mlx5_try_fast_unload(struct mlx5_core_dev *dev)
2112 {
2113 bool fast_teardown = false, force_teardown = false;
2114 int ret = 1;
2115
2116 fast_teardown = MLX5_CAP_GEN(dev, fast_teardown);
2117 force_teardown = MLX5_CAP_GEN(dev, force_teardown);
2118
2119 mlx5_core_dbg(dev, "force teardown firmware support=%d\n", force_teardown);
2120 mlx5_core_dbg(dev, "fast teardown firmware support=%d\n", fast_teardown);
2121
2122 if (!fast_teardown && !force_teardown)
2123 return -EOPNOTSUPP;
2124
2125 if (dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
2126 mlx5_core_dbg(dev, "Device in internal error state, giving up\n");
2127 return -EAGAIN;
2128 }
2129
2130 /* Panic tear down fw command will stop the PCI bus communication
2131 * with the HCA, so the health poll is no longer needed.
2132 */
2133 mlx5_drain_health_wq(dev);
2134 mlx5_stop_health_poll(dev, false);
2135
2136 ret = mlx5_cmd_fast_teardown_hca(dev);
2137 if (!ret)
2138 goto succeed;
2139
2140 ret = mlx5_cmd_force_teardown_hca(dev);
2141 if (!ret)
2142 goto succeed;
2143
2144 mlx5_core_dbg(dev, "Firmware couldn't do fast unload error: %d\n", ret);
2145 mlx5_start_health_poll(dev);
2146 return ret;
2147
2148 succeed:
2149 mlx5_enter_error_state(dev, true);
2150
2151 /* Some platforms requiring freeing the IRQ's in the shutdown
2152 * flow. If they aren't freed they can't be allocated after
2153 * kexec. There is no need to cleanup the mlx5_core software
2154 * contexts.
2155 */
2156 mlx5_core_eq_free_irqs(dev);
2157
2158 return 0;
2159 }
2160
shutdown(struct pci_dev * pdev)2161 static void shutdown(struct pci_dev *pdev)
2162 {
2163 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2164 int err;
2165
2166 mlx5_core_info(dev, "Shutdown was called\n");
2167 set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state);
2168 err = mlx5_try_fast_unload(dev);
2169 if (err)
2170 mlx5_unload_one(dev, false);
2171 mlx5_pci_disable_device(dev);
2172 }
2173
mlx5_suspend(struct pci_dev * pdev,pm_message_t state)2174 static int mlx5_suspend(struct pci_dev *pdev, pm_message_t state)
2175 {
2176 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2177
2178 mlx5_unload_one(dev, true);
2179
2180 return 0;
2181 }
2182
mlx5_resume(struct pci_dev * pdev)2183 static int mlx5_resume(struct pci_dev *pdev)
2184 {
2185 struct mlx5_core_dev *dev = pci_get_drvdata(pdev);
2186
2187 return mlx5_load_one(dev, false);
2188 }
2189
2190 static const struct pci_device_id mlx5_core_pci_table[] = {
2191 { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTIB) },
2192 { PCI_VDEVICE(MELLANOX, 0x1012), MLX5_PCI_DEV_IS_VF}, /* Connect-IB VF */
2193 { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4) },
2194 { PCI_VDEVICE(MELLANOX, 0x1014), MLX5_PCI_DEV_IS_VF}, /* ConnectX-4 VF */
2195 { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX) },
2196 { PCI_VDEVICE(MELLANOX, 0x1016), MLX5_PCI_DEV_IS_VF}, /* ConnectX-4LX VF */
2197 { PCI_VDEVICE(MELLANOX, 0x1017) }, /* ConnectX-5, PCIe 3.0 */
2198 { PCI_VDEVICE(MELLANOX, 0x1018), MLX5_PCI_DEV_IS_VF}, /* ConnectX-5 VF */
2199 { PCI_VDEVICE(MELLANOX, 0x1019) }, /* ConnectX-5 Ex */
2200 { PCI_VDEVICE(MELLANOX, 0x101a), MLX5_PCI_DEV_IS_VF}, /* ConnectX-5 Ex VF */
2201 { PCI_VDEVICE(MELLANOX, 0x101b) }, /* ConnectX-6 */
2202 { PCI_VDEVICE(MELLANOX, 0x101c), MLX5_PCI_DEV_IS_VF}, /* ConnectX-6 VF */
2203 { PCI_VDEVICE(MELLANOX, 0x101d) }, /* ConnectX-6 Dx */
2204 { PCI_VDEVICE(MELLANOX, 0x101e), MLX5_PCI_DEV_IS_VF}, /* ConnectX Family mlx5Gen Virtual Function */
2205 { PCI_VDEVICE(MELLANOX, 0x101f) }, /* ConnectX-6 LX */
2206 { PCI_VDEVICE(MELLANOX, 0x1021) }, /* ConnectX-7 */
2207 { PCI_VDEVICE(MELLANOX, 0x1023) }, /* ConnectX-8 */
2208 { PCI_VDEVICE(MELLANOX, 0xa2d2) }, /* BlueField integrated ConnectX-5 network controller */
2209 { PCI_VDEVICE(MELLANOX, 0xa2d3), MLX5_PCI_DEV_IS_VF}, /* BlueField integrated ConnectX-5 network controller VF */
2210 { PCI_VDEVICE(MELLANOX, 0xa2d6) }, /* BlueField-2 integrated ConnectX-6 Dx network controller */
2211 { PCI_VDEVICE(MELLANOX, 0xa2dc) }, /* BlueField-3 integrated ConnectX-7 network controller */
2212 { PCI_VDEVICE(MELLANOX, 0xa2df) }, /* BlueField-4 integrated ConnectX-8 network controller */
2213 { 0, }
2214 };
2215
2216 MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table);
2217
mlx5_disable_device(struct mlx5_core_dev * dev)2218 void mlx5_disable_device(struct mlx5_core_dev *dev)
2219 {
2220 mlx5_error_sw_reset(dev);
2221 mlx5_unload_one_devl_locked(dev, false);
2222 }
2223
mlx5_recover_device(struct mlx5_core_dev * dev)2224 int mlx5_recover_device(struct mlx5_core_dev *dev)
2225 {
2226 if (!mlx5_core_is_sf(dev)) {
2227 mlx5_pci_disable_device(dev);
2228 if (mlx5_pci_slot_reset(dev->pdev) != PCI_ERS_RESULT_RECOVERED)
2229 return -EIO;
2230 }
2231
2232 return mlx5_load_one_devl_locked(dev, true);
2233 }
2234
2235 static struct pci_driver mlx5_core_driver = {
2236 .name = KBUILD_MODNAME,
2237 .id_table = mlx5_core_pci_table,
2238 .probe = probe_one,
2239 .remove = remove_one,
2240 .suspend = mlx5_suspend,
2241 .resume = mlx5_resume,
2242 .shutdown = shutdown,
2243 .err_handler = &mlx5_err_handler,
2244 .sriov_configure = mlx5_core_sriov_configure,
2245 .sriov_get_vf_total_msix = mlx5_sriov_get_vf_total_msix,
2246 .sriov_set_msix_vec_count = mlx5_core_sriov_set_msix_vec_count,
2247 };
2248
2249 /**
2250 * mlx5_vf_get_core_dev - Get the mlx5 core device from a given VF PCI device if
2251 * mlx5_core is its driver.
2252 * @pdev: The associated PCI device.
2253 *
2254 * Upon return the interface state lock stay held to let caller uses it safely.
2255 * Caller must ensure to use the returned mlx5 device for a narrow window
2256 * and put it back with mlx5_vf_put_core_dev() immediately once usage was over.
2257 *
2258 * Return: Pointer to the associated mlx5_core_dev or NULL.
2259 */
mlx5_vf_get_core_dev(struct pci_dev * pdev)2260 struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev)
2261 {
2262 struct mlx5_core_dev *mdev;
2263
2264 mdev = pci_iov_get_pf_drvdata(pdev, &mlx5_core_driver);
2265 if (IS_ERR(mdev))
2266 return NULL;
2267
2268 mutex_lock(&mdev->intf_state_mutex);
2269 if (!test_bit(MLX5_INTERFACE_STATE_UP, &mdev->intf_state)) {
2270 mutex_unlock(&mdev->intf_state_mutex);
2271 return NULL;
2272 }
2273
2274 return mdev;
2275 }
2276 EXPORT_SYMBOL(mlx5_vf_get_core_dev);
2277
2278 /**
2279 * mlx5_vf_put_core_dev - Put the mlx5 core device back.
2280 * @mdev: The mlx5 core device.
2281 *
2282 * Upon return the interface state lock is unlocked and caller should not
2283 * access the mdev any more.
2284 */
mlx5_vf_put_core_dev(struct mlx5_core_dev * mdev)2285 void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev)
2286 {
2287 mutex_unlock(&mdev->intf_state_mutex);
2288 }
2289 EXPORT_SYMBOL(mlx5_vf_put_core_dev);
2290
mlx5_core_verify_params(void)2291 static void mlx5_core_verify_params(void)
2292 {
2293 if (prof_sel >= ARRAY_SIZE(profile)) {
2294 pr_warn("mlx5_core: WARNING: Invalid module parameter prof_sel %d, valid range 0-%zu, changing back to default(%d)\n",
2295 prof_sel,
2296 ARRAY_SIZE(profile) - 1,
2297 MLX5_DEFAULT_PROF);
2298 prof_sel = MLX5_DEFAULT_PROF;
2299 }
2300 }
2301
mlx5_init(void)2302 static int __init mlx5_init(void)
2303 {
2304 int err;
2305
2306 WARN_ONCE(strcmp(MLX5_ADEV_NAME, KBUILD_MODNAME),
2307 "mlx5_core name not in sync with kernel module name");
2308
2309 get_random_bytes(&sw_owner_id, sizeof(sw_owner_id));
2310
2311 mlx5_core_verify_params();
2312 mlx5_register_debugfs();
2313
2314 err = mlx5e_init();
2315 if (err)
2316 goto err_debug;
2317
2318 err = mlx5_sf_driver_register();
2319 if (err)
2320 goto err_sf;
2321
2322 err = pci_register_driver(&mlx5_core_driver);
2323 if (err)
2324 goto err_pci;
2325
2326 return 0;
2327
2328 err_pci:
2329 mlx5_sf_driver_unregister();
2330 err_sf:
2331 mlx5e_cleanup();
2332 err_debug:
2333 mlx5_unregister_debugfs();
2334 return err;
2335 }
2336
mlx5_cleanup(void)2337 static void __exit mlx5_cleanup(void)
2338 {
2339 pci_unregister_driver(&mlx5_core_driver);
2340 mlx5_sf_driver_unregister();
2341 mlx5e_cleanup();
2342 mlx5_unregister_debugfs();
2343 }
2344
2345 module_init(mlx5_init);
2346 module_exit(mlx5_cleanup);
2347