2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
33 #include <rdma/ib_verbs.h>
34 #include <linux/mlx5/fs.h>
38 #define IB_DEFAULT_Q_KEY 0xb1b
39 #define MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE 9
41 static int mlx5i_open(struct net_device *netdev);
42 static int mlx5i_close(struct net_device *netdev);
43 static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu);
45 static const struct net_device_ops mlx5i_netdev_ops = {
46 .ndo_open = mlx5i_open,
47 .ndo_stop = mlx5i_close,
48 .ndo_get_stats64 = mlx5i_get_stats,
49 .ndo_init = mlx5i_dev_init,
50 .ndo_uninit = mlx5i_dev_cleanup,
51 .ndo_change_mtu = mlx5i_change_mtu,
52 .ndo_do_ioctl = mlx5i_ioctl,
55 /* IPoIB mlx5 netdev profile */
56 static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev,
57 struct mlx5e_params *params)
59 /* Override RQ params as IPoIB supports only LINKED LIST RQ for now */
60 MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ, false);
61 mlx5e_set_rq_type(mdev, params);
62 mlx5e_init_rq_type_params(mdev, params);
64 /* RQ size in ipoib by default is 512 */
65 params->log_rq_mtu_frames = is_kdump_kernel() ?
66 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
67 MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE;
69 params->lro_en = false;
70 params->hard_mtu = MLX5_IB_GRH_BYTES + MLX5_IPOIB_HARD_LEN;
73 /* Called directly after IPoIB netdevice was created to initialize SW structs */
74 void mlx5i_init(struct mlx5_core_dev *mdev,
75 struct net_device *netdev,
76 const struct mlx5e_profile *profile,
79 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
84 priv->netdev = netdev;
85 priv->profile = profile;
87 priv->max_opened_tc = 1;
88 mutex_init(&priv->state_lock);
90 mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
91 netdev->mtu = max_mtu;
93 mlx5e_build_nic_params(mdev, &priv->channels.params,
94 profile->max_nch(mdev), netdev->mtu);
95 mlx5i_build_nic_params(mdev, &priv->channels.params);
97 mlx5e_timestamp_init(priv);
100 netdev->hw_features |= NETIF_F_SG;
101 netdev->hw_features |= NETIF_F_IP_CSUM;
102 netdev->hw_features |= NETIF_F_IPV6_CSUM;
103 netdev->hw_features |= NETIF_F_GRO;
104 netdev->hw_features |= NETIF_F_TSO;
105 netdev->hw_features |= NETIF_F_TSO6;
106 netdev->hw_features |= NETIF_F_RXCSUM;
107 netdev->hw_features |= NETIF_F_RXHASH;
109 netdev->netdev_ops = &mlx5i_netdev_ops;
110 netdev->ethtool_ops = &mlx5i_ethtool_ops;
113 /* Called directly before IPoIB netdevice is destroyed to cleanup SW structs */
114 static void mlx5i_cleanup(struct mlx5e_priv *priv)
119 static void mlx5i_grp_sw_update_stats(struct mlx5e_priv *priv)
121 struct mlx5e_sw_stats s = { 0 };
124 for (i = 0; i < priv->profile->max_nch(priv->mdev); i++) {
125 struct mlx5e_channel_stats *channel_stats;
126 struct mlx5e_rq_stats *rq_stats;
128 channel_stats = &priv->channel_stats[i];
129 rq_stats = &channel_stats->rq;
131 s.rx_packets += rq_stats->packets;
132 s.rx_bytes += rq_stats->bytes;
134 for (j = 0; j < priv->max_opened_tc; j++) {
135 struct mlx5e_sq_stats *sq_stats = &channel_stats->sq[j];
137 s.tx_packets += sq_stats->packets;
138 s.tx_bytes += sq_stats->bytes;
139 s.tx_queue_dropped += sq_stats->dropped;
143 memcpy(&priv->stats.sw, &s, sizeof(s));
146 void mlx5i_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
148 struct mlx5e_priv *priv = mlx5i_epriv(dev);
149 struct mlx5e_sw_stats *sstats = &priv->stats.sw;
151 mlx5i_grp_sw_update_stats(priv);
153 stats->rx_packets = sstats->rx_packets;
154 stats->rx_bytes = sstats->rx_bytes;
155 stats->tx_packets = sstats->tx_packets;
156 stats->tx_bytes = sstats->tx_bytes;
157 stats->tx_dropped = sstats->tx_queue_dropped;
160 int mlx5i_init_underlay_qp(struct mlx5e_priv *priv)
162 struct mlx5_core_dev *mdev = priv->mdev;
163 struct mlx5i_priv *ipriv = priv->ppriv;
164 struct mlx5_core_qp *qp = &ipriv->qp;
165 struct mlx5_qp_context *context;
169 context = kzalloc(sizeof(*context), GFP_KERNEL);
173 context->flags = cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
174 context->pri_path.port = 1;
175 context->pri_path.pkey_index = cpu_to_be16(ipriv->pkey_index);
176 context->qkey = cpu_to_be32(IB_DEFAULT_Q_KEY);
178 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RST2INIT_QP, 0, context, qp);
180 mlx5_core_err(mdev, "Failed to modify qp RST2INIT, err: %d\n", ret);
181 goto err_qp_modify_to_err;
183 memset(context, 0, sizeof(*context));
185 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_INIT2RTR_QP, 0, context, qp);
187 mlx5_core_err(mdev, "Failed to modify qp INIT2RTR, err: %d\n", ret);
188 goto err_qp_modify_to_err;
191 ret = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RTR2RTS_QP, 0, context, qp);
193 mlx5_core_err(mdev, "Failed to modify qp RTR2RTS, err: %d\n", ret);
194 goto err_qp_modify_to_err;
200 err_qp_modify_to_err:
201 mlx5_core_qp_modify(mdev, MLX5_CMD_OP_2ERR_QP, 0, &context, qp);
206 void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv)
208 struct mlx5i_priv *ipriv = priv->ppriv;
209 struct mlx5_core_dev *mdev = priv->mdev;
210 struct mlx5_qp_context context;
213 err = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_2RST_QP, 0, &context,
216 mlx5_core_err(mdev, "Failed to modify qp 2RST, err: %d\n", err);
219 #define MLX5_QP_ENHANCED_ULP_STATELESS_MODE 2
221 int mlx5i_create_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
229 inlen = MLX5_ST_SZ_BYTES(create_qp_in);
230 in = kvzalloc(inlen, GFP_KERNEL);
234 qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
235 MLX5_SET(qpc, qpc, st, MLX5_QP_ST_UD);
236 MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
237 MLX5_SET(qpc, qpc, ulp_stateless_offload_mode,
238 MLX5_QP_ENHANCED_ULP_STATELESS_MODE);
240 addr_path = MLX5_ADDR_OF(qpc, qpc, primary_address_path);
241 MLX5_SET(ads, addr_path, vhca_port_num, 1);
242 MLX5_SET(ads, addr_path, grh, 1);
244 ret = mlx5_core_create_qp(mdev, qp, in, inlen);
246 mlx5_core_err(mdev, "Failed creating IPoIB QP err : %d\n", ret);
255 void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
257 mlx5_core_destroy_qp(mdev, qp);
260 static int mlx5i_init_tx(struct mlx5e_priv *priv)
262 struct mlx5i_priv *ipriv = priv->ppriv;
265 err = mlx5i_create_underlay_qp(priv->mdev, &ipriv->qp);
267 mlx5_core_warn(priv->mdev, "create underlay QP failed, %d\n", err);
271 err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
273 mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
274 goto err_destroy_underlay_qp;
279 err_destroy_underlay_qp:
280 mlx5i_destroy_underlay_qp(priv->mdev, &ipriv->qp);
284 static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
286 struct mlx5i_priv *ipriv = priv->ppriv;
288 mlx5e_destroy_tis(priv->mdev, priv->tisn[0]);
289 mlx5i_destroy_underlay_qp(priv->mdev, &ipriv->qp);
292 static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
294 struct ttc_params ttc_params = {};
297 priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
298 MLX5_FLOW_NAMESPACE_KERNEL);
303 err = mlx5e_arfs_create_tables(priv);
305 netdev_err(priv->netdev, "Failed to create arfs tables, err=%d\n",
307 priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
310 mlx5e_set_ttc_basic_params(priv, &ttc_params);
311 mlx5e_set_inner_ttc_ft_params(&ttc_params);
312 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
313 ttc_params.indir_tirn[tt] = priv->inner_indir_tir[tt].tirn;
315 err = mlx5e_create_inner_ttc_table(priv, &ttc_params, &priv->fs.inner_ttc);
317 netdev_err(priv->netdev, "Failed to create inner ttc table, err=%d\n",
319 goto err_destroy_arfs_tables;
322 mlx5e_set_ttc_ft_params(&ttc_params);
323 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
324 ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
326 err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
328 netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
330 goto err_destroy_inner_ttc_table;
335 err_destroy_inner_ttc_table:
336 mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
337 err_destroy_arfs_tables:
338 mlx5e_arfs_destroy_tables(priv);
343 static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
345 mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
346 mlx5e_destroy_inner_ttc_table(priv, &priv->fs.inner_ttc);
347 mlx5e_arfs_destroy_tables(priv);
350 static int mlx5i_init_rx(struct mlx5e_priv *priv)
352 struct mlx5_core_dev *mdev = priv->mdev;
355 mlx5e_create_q_counters(priv);
357 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
359 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
360 goto err_destroy_q_counters;
363 err = mlx5e_create_indirect_rqt(priv);
365 goto err_close_drop_rq;
367 err = mlx5e_create_direct_rqts(priv);
369 goto err_destroy_indirect_rqts;
371 err = mlx5e_create_indirect_tirs(priv, true);
373 goto err_destroy_direct_rqts;
375 err = mlx5e_create_direct_tirs(priv);
377 goto err_destroy_indirect_tirs;
379 err = mlx5i_create_flow_steering(priv);
381 goto err_destroy_direct_tirs;
385 err_destroy_direct_tirs:
386 mlx5e_destroy_direct_tirs(priv);
387 err_destroy_indirect_tirs:
388 mlx5e_destroy_indirect_tirs(priv, true);
389 err_destroy_direct_rqts:
390 mlx5e_destroy_direct_rqts(priv);
391 err_destroy_indirect_rqts:
392 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
394 mlx5e_close_drop_rq(&priv->drop_rq);
395 err_destroy_q_counters:
396 mlx5e_destroy_q_counters(priv);
400 static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
402 mlx5i_destroy_flow_steering(priv);
403 mlx5e_destroy_direct_tirs(priv);
404 mlx5e_destroy_indirect_tirs(priv, true);
405 mlx5e_destroy_direct_rqts(priv);
406 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
407 mlx5e_close_drop_rq(&priv->drop_rq);
408 mlx5e_destroy_q_counters(priv);
411 static const struct mlx5e_profile mlx5i_nic_profile = {
413 .cleanup = mlx5i_cleanup,
414 .init_tx = mlx5i_init_tx,
415 .cleanup_tx = mlx5i_cleanup_tx,
416 .init_rx = mlx5i_init_rx,
417 .cleanup_rx = mlx5i_cleanup_rx,
418 .enable = NULL, /* mlx5i_enable */
419 .disable = NULL, /* mlx5i_disable */
420 .update_stats = NULL, /* mlx5i_update_stats */
421 .max_nch = mlx5e_get_max_num_channels,
422 .update_carrier = NULL, /* no HW update in IB link */
423 .rx_handlers.handle_rx_cqe = mlx5i_handle_rx_cqe,
424 .rx_handlers.handle_rx_cqe_mpwqe = NULL, /* Not supported */
425 .max_tc = MLX5I_MAX_NUM_TC,
428 /* mlx5i netdev NDos */
430 static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu)
432 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
433 struct mlx5e_channels new_channels = {};
434 struct mlx5e_params *params;
437 mutex_lock(&priv->state_lock);
439 params = &priv->channels.params;
441 if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
442 params->sw_mtu = new_mtu;
443 netdev->mtu = params->sw_mtu;
447 new_channels.params = *params;
448 new_channels.params.sw_mtu = new_mtu;
449 err = mlx5e_open_channels(priv, &new_channels);
453 mlx5e_switch_priv_channels(priv, &new_channels, NULL);
454 netdev->mtu = new_channels.params.sw_mtu;
457 mutex_unlock(&priv->state_lock);
461 int mlx5i_dev_init(struct net_device *dev)
463 struct mlx5e_priv *priv = mlx5i_epriv(dev);
464 struct mlx5i_priv *ipriv = priv->ppriv;
466 /* Set dev address using underlay QP */
467 dev->dev_addr[1] = (ipriv->qp.qpn >> 16) & 0xff;
468 dev->dev_addr[2] = (ipriv->qp.qpn >> 8) & 0xff;
469 dev->dev_addr[3] = (ipriv->qp.qpn) & 0xff;
471 /* Add QPN to net-device mapping to HT */
472 mlx5i_pkey_add_qpn(dev ,ipriv->qp.qpn);
477 int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
479 struct mlx5e_priv *priv = mlx5i_epriv(dev);
483 return mlx5e_hwstamp_set(priv, ifr);
485 return mlx5e_hwstamp_get(priv, ifr);
491 void mlx5i_dev_cleanup(struct net_device *dev)
493 struct mlx5e_priv *priv = mlx5i_epriv(dev);
494 struct mlx5i_priv *ipriv = priv->ppriv;
496 mlx5i_uninit_underlay_qp(priv);
498 /* Delete QPN to net-device mapping from HT */
499 mlx5i_pkey_del_qpn(dev, ipriv->qp.qpn);
502 static int mlx5i_open(struct net_device *netdev)
504 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
505 struct mlx5i_priv *ipriv = epriv->ppriv;
506 struct mlx5_core_dev *mdev = epriv->mdev;
509 mutex_lock(&epriv->state_lock);
511 set_bit(MLX5E_STATE_OPENED, &epriv->state);
513 err = mlx5i_init_underlay_qp(epriv);
515 mlx5_core_warn(mdev, "prepare underlay qp state failed, %d\n", err);
516 goto err_clear_state_opened_flag;
519 err = mlx5_fs_add_rx_underlay_qpn(mdev, ipriv->qp.qpn);
521 mlx5_core_warn(mdev, "attach underlay qp to ft failed, %d\n", err);
525 err = mlx5e_open_channels(epriv, &epriv->channels);
527 goto err_remove_fs_underlay_qp;
529 mlx5e_refresh_tirs(epriv, false);
530 mlx5e_activate_priv_channels(epriv);
532 mutex_unlock(&epriv->state_lock);
535 err_remove_fs_underlay_qp:
536 mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qp.qpn);
538 mlx5i_uninit_underlay_qp(epriv);
539 err_clear_state_opened_flag:
540 clear_bit(MLX5E_STATE_OPENED, &epriv->state);
541 mutex_unlock(&epriv->state_lock);
545 static int mlx5i_close(struct net_device *netdev)
547 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
548 struct mlx5i_priv *ipriv = epriv->ppriv;
549 struct mlx5_core_dev *mdev = epriv->mdev;
551 /* May already be CLOSED in case a previous configuration operation
552 * (e.g RX/TX queue size change) that involves close&open failed.
554 mutex_lock(&epriv->state_lock);
556 if (!test_bit(MLX5E_STATE_OPENED, &epriv->state))
559 clear_bit(MLX5E_STATE_OPENED, &epriv->state);
561 netif_carrier_off(epriv->netdev);
562 mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qp.qpn);
563 mlx5i_uninit_underlay_qp(epriv);
564 mlx5e_deactivate_priv_channels(epriv);
565 mlx5e_close_channels(&epriv->channels);
567 mutex_unlock(&epriv->state_lock);
571 /* IPoIB RDMA netdev callbacks */
572 static int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
573 union ib_gid *gid, u16 lid, int set_qkey,
576 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
577 struct mlx5_core_dev *mdev = epriv->mdev;
578 struct mlx5i_priv *ipriv = epriv->ppriv;
581 mlx5_core_dbg(mdev, "attaching QPN 0x%x, MGID %pI6\n", ipriv->qp.qpn, gid->raw);
582 err = mlx5_core_attach_mcg(mdev, gid, ipriv->qp.qpn);
584 mlx5_core_warn(mdev, "failed attaching QPN 0x%x, MGID %pI6\n",
585 ipriv->qp.qpn, gid->raw);
588 mlx5_core_dbg(mdev, "%s setting qkey 0x%x\n",
596 static int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
597 union ib_gid *gid, u16 lid)
599 struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
600 struct mlx5_core_dev *mdev = epriv->mdev;
601 struct mlx5i_priv *ipriv = epriv->ppriv;
604 mlx5_core_dbg(mdev, "detaching QPN 0x%x, MGID %pI6\n", ipriv->qp.qpn, gid->raw);
606 err = mlx5_core_detach_mcg(mdev, gid, ipriv->qp.qpn);
608 mlx5_core_dbg(mdev, "failed detaching QPN 0x%x, MGID %pI6\n",
609 ipriv->qp.qpn, gid->raw);
614 static int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
615 struct ib_ah *address, u32 dqpn)
617 struct mlx5e_priv *epriv = mlx5i_epriv(dev);
618 struct mlx5e_txqsq *sq = epriv->txq2sq[skb_get_queue_mapping(skb)];
619 struct mlx5_ib_ah *mah = to_mah(address);
620 struct mlx5i_priv *ipriv = epriv->ppriv;
622 return mlx5i_sq_xmit(sq, skb, &mah->av, dqpn, ipriv->qkey);
625 static void mlx5i_set_pkey_index(struct net_device *netdev, int id)
627 struct mlx5i_priv *ipriv = netdev_priv(netdev);
629 ipriv->pkey_index = (u16)id;
632 static int mlx5i_check_required_hca_cap(struct mlx5_core_dev *mdev)
634 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_IB)
637 if (!MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads)) {
638 mlx5_core_warn(mdev, "IPoIB enhanced offloads are not supported\n");
645 static void mlx5_rdma_netdev_free(struct net_device *netdev)
647 struct mlx5e_priv *priv = mlx5i_epriv(netdev);
648 struct mlx5i_priv *ipriv = priv->ppriv;
649 const struct mlx5e_profile *profile = priv->profile;
651 mlx5e_detach_netdev(priv);
652 profile->cleanup(priv);
653 destroy_workqueue(priv->wq);
655 if (!ipriv->sub_interface) {
656 mlx5i_pkey_qpn_ht_cleanup(netdev);
657 mlx5e_destroy_mdev_resources(priv->mdev);
661 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
662 struct ib_device *ibdev,
664 void (*setup)(struct net_device *))
666 const struct mlx5e_profile *profile;
667 struct net_device *netdev;
668 struct mlx5i_priv *ipriv;
669 struct mlx5e_priv *epriv;
670 struct rdma_netdev *rn;
675 if (mlx5i_check_required_hca_cap(mdev)) {
676 mlx5_core_warn(mdev, "Accelerated mode is not supported\n");
677 return ERR_PTR(-EOPNOTSUPP);
680 /* TODO: Need to find a better way to check if child device*/
681 sub_interface = (mdev->mlx5e_res.pdn != 0);
684 profile = mlx5i_pkey_get_profile();
686 profile = &mlx5i_nic_profile;
688 nch = profile->max_nch(mdev);
690 netdev = alloc_netdev_mqs(sizeof(struct mlx5i_priv) + sizeof(struct mlx5e_priv),
691 name, NET_NAME_UNKNOWN,
693 nch * MLX5E_MAX_NUM_TC,
696 mlx5_core_warn(mdev, "alloc_netdev_mqs failed\n");
700 ipriv = netdev_priv(netdev);
701 epriv = mlx5i_epriv(netdev);
703 epriv->wq = create_singlethread_workqueue("mlx5i");
705 goto err_free_netdev;
707 ipriv->sub_interface = sub_interface;
708 if (!ipriv->sub_interface) {
709 err = mlx5i_pkey_qpn_ht_init(netdev);
711 mlx5_core_warn(mdev, "allocate qpn_to_netdev ht failed\n");
715 /* This should only be called once per mdev */
716 err = mlx5e_create_mdev_resources(mdev);
721 profile->init(mdev, netdev, profile, ipriv);
723 mlx5e_attach_netdev(epriv);
724 netif_carrier_off(netdev);
726 /* set rdma_netdev func pointers */
729 rn->send = mlx5i_xmit;
730 rn->attach_mcast = mlx5i_attach_mcast;
731 rn->detach_mcast = mlx5i_detach_mcast;
732 rn->set_id = mlx5i_set_pkey_index;
734 netdev->priv_destructor = mlx5_rdma_netdev_free;
735 netdev->needs_free_netdev = 1;
740 mlx5i_pkey_qpn_ht_cleanup(netdev);
742 destroy_workqueue(epriv->wq);
748 EXPORT_SYMBOL(mlx5_rdma_netdev_alloc);