1 /*
2 * Copyright (c) 2017, 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 <rdma/ib_verbs.h>
34 #include <linux/mlx5/fs.h>
35 #include "en.h"
36 #include "ipoib.h"
37
38 #define IB_DEFAULT_Q_KEY 0xb1b
39 #define MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE 9
40
41 static int mlx5i_open(struct net_device *netdev);
42 static int mlx5i_close(struct net_device *netdev);
43 static int mlx5i_dev_init(struct net_device *dev);
44 static void mlx5i_dev_cleanup(struct net_device *dev);
45 static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu);
46 static int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
47
48 static const struct net_device_ops mlx5i_netdev_ops = {
49 .ndo_open = mlx5i_open,
50 .ndo_stop = mlx5i_close,
51 .ndo_init = mlx5i_dev_init,
52 .ndo_uninit = mlx5i_dev_cleanup,
53 .ndo_change_mtu = mlx5i_change_mtu,
54 .ndo_do_ioctl = mlx5i_ioctl,
55 };
56
57 /* IPoIB mlx5 netdev profile */
mlx5i_build_nic_params(struct mlx5_core_dev * mdev,struct mlx5e_params * params)58 static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev,
59 struct mlx5e_params *params)
60 {
61 /* Override RQ params as IPoIB supports only LINKED LIST RQ for now */
62 mlx5e_set_rq_type_params(mdev, params, MLX5_WQ_TYPE_LINKED_LIST);
63
64 /* RQ size in ipoib by default is 512 */
65 params->log_rq_size = is_kdump_kernel() ?
66 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
67 MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE;
68
69 params->lro_en = false;
70 }
71
72 /* Called directly after IPoIB netdevice was created to initialize SW structs */
mlx5i_init(struct mlx5_core_dev * mdev,struct net_device * netdev,const struct mlx5e_profile * profile,void * ppriv)73 static void mlx5i_init(struct mlx5_core_dev *mdev,
74 struct net_device *netdev,
75 const struct mlx5e_profile *profile,
76 void *ppriv)
77 {
78 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
79
80 /* priv init */
81 priv->mdev = mdev;
82 priv->netdev = netdev;
83 priv->profile = profile;
84 priv->ppriv = ppriv;
85 priv->hard_mtu = MLX5_IB_GRH_BYTES + MLX5_IPOIB_HARD_LEN;
86 mutex_init(&priv->state_lock);
87
88 mlx5e_build_nic_params(mdev, &priv->channels.params, profile->max_nch(mdev));
89 mlx5i_build_nic_params(mdev, &priv->channels.params);
90
91 /* netdev init */
92 netdev->hw_features |= NETIF_F_SG;
93 netdev->hw_features |= NETIF_F_IP_CSUM;
94 netdev->hw_features |= NETIF_F_IPV6_CSUM;
95 netdev->hw_features |= NETIF_F_GRO;
96 netdev->hw_features |= NETIF_F_TSO;
97 netdev->hw_features |= NETIF_F_TSO6;
98 netdev->hw_features |= NETIF_F_RXCSUM;
99 netdev->hw_features |= NETIF_F_RXHASH;
100
101 netdev->netdev_ops = &mlx5i_netdev_ops;
102 netdev->ethtool_ops = &mlx5i_ethtool_ops;
103 }
104
105 /* Called directly before IPoIB netdevice is destroyed to cleanup SW structs */
mlx5i_cleanup(struct mlx5e_priv * priv)106 static void mlx5i_cleanup(struct mlx5e_priv *priv)
107 {
108 /* Do nothing .. */
109 }
110
111 #define MLX5_QP_ENHANCED_ULP_STATELESS_MODE 2
112
mlx5i_create_underlay_qp(struct mlx5_core_dev * mdev,struct mlx5_core_qp * qp)113 static int mlx5i_create_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
114 {
115 struct mlx5_qp_context *context = NULL;
116 u32 *in = NULL;
117 void *addr_path;
118 int ret = 0;
119 int inlen;
120 void *qpc;
121
122 inlen = MLX5_ST_SZ_BYTES(create_qp_in);
123 in = kvzalloc(inlen, GFP_KERNEL);
124 if (!in)
125 return -ENOMEM;
126
127 qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
128 MLX5_SET(qpc, qpc, st, MLX5_QP_ST_UD);
129 MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
130 MLX5_SET(qpc, qpc, ulp_stateless_offload_mode,
131 MLX5_QP_ENHANCED_ULP_STATELESS_MODE);
132
133 addr_path = MLX5_ADDR_OF(qpc, qpc, primary_address_path);
134 MLX5_SET(ads, addr_path, port, 1);
135 MLX5_SET(ads, addr_path, grh, 1);
136
137 ret = mlx5_core_create_qp(mdev, qp, in, inlen);
138 if (ret) {
139 mlx5_core_err(mdev, "Failed creating IPoIB QP err : %d\n", ret);
140 goto out;
141 }
142
143 /* QP states */
144 context = kzalloc(sizeof(*context), GFP_KERNEL);
145 if (!context) {
146 ret = -ENOMEM;
147 goto out;
148 }
149
150 context->flags = cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
151 context->pri_path.port = 1;
152 context->qkey = cpu_to_be32(IB_DEFAULT_Q_KEY);
153
154 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RST2INIT_QP, 0, context, qp);
155 if (ret) {
156 mlx5_core_err(mdev, "Failed to modify qp RST2INIT, err: %d\n", ret);
157 goto out;
158 }
159 memset(context, 0, sizeof(*context));
160
161 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_INIT2RTR_QP, 0, context, qp);
162 if (ret) {
163 mlx5_core_err(mdev, "Failed to modify qp INIT2RTR, err: %d\n", ret);
164 goto out;
165 }
166
167 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RTR2RTS_QP, 0, context, qp);
168 if (ret) {
169 mlx5_core_err(mdev, "Failed to modify qp RTR2RTS, err: %d\n", ret);
170 goto out;
171 }
172
173 out:
174 kfree(context);
175 kvfree(in);
176 return ret;
177 }
178
mlx5i_destroy_underlay_qp(struct mlx5_core_dev * mdev,struct mlx5_core_qp * qp)179 static void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
180 {
181 mlx5_core_destroy_qp(mdev, qp);
182 }
183
mlx5i_init_tx(struct mlx5e_priv * priv)184 static int mlx5i_init_tx(struct mlx5e_priv *priv)
185 {
186 struct mlx5i_priv *ipriv = priv->ppriv;
187 int err;
188
189 err = mlx5i_create_underlay_qp(priv->mdev, &ipriv->qp);
190 if (err) {
191 mlx5_core_warn(priv->mdev, "create underlay QP failed, %d\n", err);
192 return err;
193 }
194
195 err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
196 if (err) {
197 mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
198 return err;
199 }
200
201 return 0;
202 }
203
mlx5i_cleanup_tx(struct mlx5e_priv * priv)204 static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
205 {
206 struct mlx5i_priv *ipriv = priv->ppriv;
207
208 mlx5e_destroy_tis(priv->mdev, priv->tisn[0]);
209 mlx5i_destroy_underlay_qp(priv->mdev, &ipriv->qp);
210 }
211
mlx5i_create_flow_steering(struct mlx5e_priv * priv)212 static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
213 {
214 int err;
215
216 priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
217 MLX5_FLOW_NAMESPACE_KERNEL);
218
219 if (!priv->fs.ns)
220 return -EINVAL;
221
222 err = mlx5e_arfs_create_tables(priv);
223 if (err) {
224 netdev_err(priv->netdev, "Failed to create arfs tables, err=%d\n",
225 err);
226 priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
227 }
228
229 err = mlx5e_create_ttc_table(priv);
230 if (err) {
231 netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
232 err);
233 goto err_destroy_arfs_tables;
234 }
235
236 return 0;
237
238 err_destroy_arfs_tables:
239 mlx5e_arfs_destroy_tables(priv);
240
241 return err;
242 }
243
mlx5i_destroy_flow_steering(struct mlx5e_priv * priv)244 static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
245 {
246 mlx5e_destroy_ttc_table(priv);
247 mlx5e_arfs_destroy_tables(priv);
248 }
249
mlx5i_init_rx(struct mlx5e_priv * priv)250 static int mlx5i_init_rx(struct mlx5e_priv *priv)
251 {
252 struct mlx5i_priv *ipriv = priv->ppriv;
253 int err;
254
255 err = mlx5e_create_indirect_rqt(priv);
256 if (err)
257 return err;
258
259 err = mlx5e_create_direct_rqts(priv);
260 if (err)
261 goto err_destroy_indirect_rqts;
262
263 err = mlx5e_create_indirect_tirs(priv);
264 if (err)
265 goto err_destroy_direct_rqts;
266
267 err = mlx5e_create_direct_tirs(priv);
268 if (err)
269 goto err_destroy_indirect_tirs;
270
271 err = mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
272 if (err)
273 goto err_destroy_direct_tirs;
274
275 err = mlx5i_create_flow_steering(priv);
276 if (err)
277 goto err_remove_rx_underlay_qpn;
278
279 return 0;
280
281 err_remove_rx_underlay_qpn:
282 mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
283 err_destroy_direct_tirs:
284 mlx5e_destroy_direct_tirs(priv);
285 err_destroy_indirect_tirs:
286 mlx5e_destroy_indirect_tirs(priv);
287 err_destroy_direct_rqts:
288 mlx5e_destroy_direct_rqts(priv);
289 err_destroy_indirect_rqts:
290 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
291 return err;
292 }
293
mlx5i_cleanup_rx(struct mlx5e_priv * priv)294 static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
295 {
296 struct mlx5i_priv *ipriv = priv->ppriv;
297
298 mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
299 mlx5i_destroy_flow_steering(priv);
300 mlx5e_destroy_direct_tirs(priv);
301 mlx5e_destroy_indirect_tirs(priv);
302 mlx5e_destroy_direct_rqts(priv);
303 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
304 }
305
306 static const struct mlx5e_profile mlx5i_nic_profile = {
307 .init = mlx5i_init,
308 .cleanup = mlx5i_cleanup,
309 .init_tx = mlx5i_init_tx,
310 .cleanup_tx = mlx5i_cleanup_tx,
311 .init_rx = mlx5i_init_rx,
312 .cleanup_rx = mlx5i_cleanup_rx,
313 .enable = NULL, /* mlx5i_enable */
314 .disable = NULL, /* mlx5i_disable */
315 .update_stats = NULL, /* mlx5i_update_stats */
316 .max_nch = mlx5e_get_max_num_channels,
317 .update_carrier = NULL, /* no HW update in IB link */
318 .rx_handlers.handle_rx_cqe = mlx5i_handle_rx_cqe,
319 .rx_handlers.handle_rx_cqe_mpwqe = NULL, /* Not supported */
320 .max_tc = MLX5I_MAX_NUM_TC,
321 };
322
323 /* mlx5i netdev NDos */
324
mlx5i_change_mtu(struct net_device * netdev,int new_mtu)325 static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu)
326 {
327 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
328 struct mlx5e_channels new_channels = {};
329 int curr_mtu;
330 int err = 0;
331
332 mutex_lock(&priv->state_lock);
333
334 curr_mtu = netdev->mtu;
335 netdev->mtu = new_mtu;
336
337 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
338 goto out;
339
340 new_channels.params = priv->channels.params;
341 err = mlx5e_open_channels(priv, &new_channels);
342 if (err) {
343 netdev->mtu = curr_mtu;
344 goto out;
345 }
346
347 mlx5e_switch_priv_channels(priv, &new_channels, NULL);
348
349 out:
350 mutex_unlock(&priv->state_lock);
351 return err;
352 }
353
mlx5i_dev_init(struct net_device * dev)354 static int mlx5i_dev_init(struct net_device *dev)
355 {
356 struct mlx5e_priv *priv = mlx5i_epriv(dev);
357 struct mlx5i_priv *ipriv = priv->ppriv;
358
359 /* Set dev address using underlay QP */
360 dev->dev_addr[1] = (ipriv->qp.qpn >> 16) & 0xff;
361 dev->dev_addr[2] = (ipriv->qp.qpn >> 8) & 0xff;
362 dev->dev_addr[3] = (ipriv->qp.qpn) & 0xff;
363
364 return 0;
365 }
366
mlx5i_ioctl(struct net_device * dev,struct ifreq * ifr,int cmd)367 static int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
368 {
369 struct mlx5e_priv *priv = mlx5i_epriv(dev);
370
371 switch (cmd) {
372 case SIOCSHWTSTAMP:
373 return mlx5e_hwstamp_set(priv, ifr);
374 case SIOCGHWTSTAMP:
375 return mlx5e_hwstamp_get(priv, ifr);
376 default:
377 return -EOPNOTSUPP;
378 }
379 }
380
mlx5i_dev_cleanup(struct net_device * dev)381 static void mlx5i_dev_cleanup(struct net_device *dev)
382 {
383 struct mlx5e_priv *priv = mlx5i_epriv(dev);
384 struct mlx5_core_dev *mdev = priv->mdev;
385 struct mlx5i_priv *ipriv = priv->ppriv;
386 struct mlx5_qp_context context;
387
388 /* detach qp from flow-steering by reset it */
389 mlx5_core_qp_modify(mdev, MLX5_CMD_OP_2RST_QP, 0, &context, &ipriv->qp);
390 }
391
mlx5i_open(struct net_device * netdev)392 static int mlx5i_open(struct net_device *netdev)
393 {
394 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
395 int err;
396
397 mutex_lock(&priv->state_lock);
398
399 set_bit(MLX5E_STATE_OPENED, &priv->state);
400
401 err = mlx5e_open_channels(priv, &priv->channels);
402 if (err)
403 goto err_clear_state_opened_flag;
404
405 mlx5e_refresh_tirs(priv, false);
406 mlx5e_activate_priv_channels(priv);
407 mlx5e_timestamp_init(priv);
408
409 mutex_unlock(&priv->state_lock);
410 return 0;
411
412 err_clear_state_opened_flag:
413 clear_bit(MLX5E_STATE_OPENED, &priv->state);
414 mutex_unlock(&priv->state_lock);
415 return err;
416 }
417
mlx5i_close(struct net_device * netdev)418 static int mlx5i_close(struct net_device *netdev)
419 {
420 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
421
422 /* May already be CLOSED in case a previous configuration operation
423 * (e.g RX/TX queue size change) that involves close&open failed.
424 */
425 mutex_lock(&priv->state_lock);
426
427 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
428 goto unlock;
429
430 clear_bit(MLX5E_STATE_OPENED, &priv->state);
431
432 mlx5e_timestamp_cleanup(priv);
433 netif_carrier_off(priv->netdev);
434 mlx5e_deactivate_priv_channels(priv);
435 mlx5e_close_channels(&priv->channels);
436 unlock:
437 mutex_unlock(&priv->state_lock);
438 return 0;
439 }
440
441 /* IPoIB RDMA netdev callbacks */
mlx5i_attach_mcast(struct net_device * netdev,struct ib_device * hca,union ib_gid * gid,u16 lid,int set_qkey,u32 qkey)442 static int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
443 union ib_gid *gid, u16 lid, int set_qkey,
444 u32 qkey)
445 {
446 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
447 struct mlx5_core_dev *mdev = epriv->mdev;
448 struct mlx5i_priv *ipriv = epriv->ppriv;
449 int err;
450
451 mlx5_core_dbg(mdev, "attaching QPN 0x%x, MGID %pI6\n", ipriv->qp.qpn, gid->raw);
452 err = mlx5_core_attach_mcg(mdev, gid, ipriv->qp.qpn);
453 if (err)
454 mlx5_core_warn(mdev, "failed attaching QPN 0x%x, MGID %pI6\n",
455 ipriv->qp.qpn, gid->raw);
456
457 if (set_qkey) {
458 mlx5_core_dbg(mdev, "%s setting qkey 0x%x\n",
459 netdev->name, qkey);
460 ipriv->qkey = qkey;
461 }
462
463 return err;
464 }
465
mlx5i_detach_mcast(struct net_device * netdev,struct ib_device * hca,union ib_gid * gid,u16 lid)466 static int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
467 union ib_gid *gid, u16 lid)
468 {
469 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
470 struct mlx5_core_dev *mdev = epriv->mdev;
471 struct mlx5i_priv *ipriv = epriv->ppriv;
472 int err;
473
474 mlx5_core_dbg(mdev, "detaching QPN 0x%x, MGID %pI6\n", ipriv->qp.qpn, gid->raw);
475
476 err = mlx5_core_detach_mcg(mdev, gid, ipriv->qp.qpn);
477 if (err)
478 mlx5_core_dbg(mdev, "failed dettaching QPN 0x%x, MGID %pI6\n",
479 ipriv->qp.qpn, gid->raw);
480
481 return err;
482 }
483
mlx5i_xmit(struct net_device * dev,struct sk_buff * skb,struct ib_ah * address,u32 dqpn)484 static int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
485 struct ib_ah *address, u32 dqpn)
486 {
487 struct mlx5e_priv *epriv = mlx5i_epriv(dev);
488 struct mlx5e_txqsq *sq = epriv->txq2sq[skb_get_queue_mapping(skb)];
489 struct mlx5_ib_ah *mah = to_mah(address);
490 struct mlx5i_priv *ipriv = epriv->ppriv;
491
492 return mlx5i_sq_xmit(sq, skb, &mah->av, dqpn, ipriv->qkey);
493 }
494
mlx5i_check_required_hca_cap(struct mlx5_core_dev * mdev)495 static int mlx5i_check_required_hca_cap(struct mlx5_core_dev *mdev)
496 {
497 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_IB)
498 return -EOPNOTSUPP;
499
500 if (!MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads)) {
501 mlx5_core_warn(mdev, "IPoIB enhanced offloads are not supported\n");
502 return -EOPNOTSUPP;
503 }
504
505 return 0;
506 }
507
mlx5_rdma_netdev_alloc(struct mlx5_core_dev * mdev,struct ib_device * ibdev,const char * name,void (* setup)(struct net_device *))508 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
509 struct ib_device *ibdev,
510 const char *name,
511 void (*setup)(struct net_device *))
512 {
513 const struct mlx5e_profile *profile = &mlx5i_nic_profile;
514 int nch = profile->max_nch(mdev);
515 struct net_device *netdev;
516 struct mlx5i_priv *ipriv;
517 struct mlx5e_priv *epriv;
518 struct rdma_netdev *rn;
519 int err;
520
521 if (mlx5i_check_required_hca_cap(mdev)) {
522 mlx5_core_warn(mdev, "Accelerated mode is not supported\n");
523 return ERR_PTR(-EOPNOTSUPP);
524 }
525
526 /* This function should only be called once per mdev */
527 err = mlx5e_create_mdev_resources(mdev);
528 if (err)
529 return NULL;
530
531 netdev = alloc_netdev_mqs(sizeof(struct mlx5i_priv) + sizeof(struct mlx5e_priv),
532 name, NET_NAME_UNKNOWN,
533 setup,
534 nch * MLX5E_MAX_NUM_TC,
535 nch);
536 if (!netdev) {
537 mlx5_core_warn(mdev, "alloc_netdev_mqs failed\n");
538 goto free_mdev_resources;
539 }
540
541 ipriv = netdev_priv(netdev);
542 epriv = mlx5i_epriv(netdev);
543
544 epriv->wq = create_singlethread_workqueue("mlx5i");
545 if (!epriv->wq)
546 goto err_free_netdev;
547
548 profile->init(mdev, netdev, profile, ipriv);
549
550 mlx5e_attach_netdev(epriv);
551 netif_carrier_off(netdev);
552
553 /* set rdma_netdev func pointers */
554 rn = &ipriv->rn;
555 rn->hca = ibdev;
556 rn->send = mlx5i_xmit;
557 rn->attach_mcast = mlx5i_attach_mcast;
558 rn->detach_mcast = mlx5i_detach_mcast;
559
560 return netdev;
561
562 err_free_netdev:
563 free_netdev(netdev);
564 free_mdev_resources:
565 mlx5e_destroy_mdev_resources(mdev);
566
567 return NULL;
568 }
569 EXPORT_SYMBOL(mlx5_rdma_netdev_alloc);
570
mlx5_rdma_netdev_free(struct net_device * netdev)571 void mlx5_rdma_netdev_free(struct net_device *netdev)
572 {
573 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
574 const struct mlx5e_profile *profile = priv->profile;
575 struct mlx5_core_dev *mdev = priv->mdev;
576
577 mlx5e_detach_netdev(priv);
578 profile->cleanup(priv);
579 destroy_workqueue(priv->wq);
580 free_netdev(netdev);
581
582 mlx5e_destroy_mdev_resources(mdev);
583 }
584 EXPORT_SYMBOL(mlx5_rdma_netdev_free);
585