2 * Copyright (c) 2007 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
34 #include <linux/etherdevice.h>
35 #include <linux/tcp.h>
36 #include <linux/if_vlan.h>
37 #include <linux/delay.h>
38 #include <linux/slab.h>
39 #include <linux/hash.h>
42 #include <linux/mlx4/driver.h>
43 #include <linux/mlx4/device.h>
44 #include <linux/mlx4/cmd.h>
45 #include <linux/mlx4/cq.h>
50 int mlx4_en_setup_tc(struct net_device *dev, u8 up)
52 struct mlx4_en_priv *priv = netdev_priv(dev);
54 unsigned int offset = 0;
56 if (up && up != MLX4_EN_NUM_UP)
59 netdev_set_num_tc(dev, up);
61 /* Partition Tx queues evenly amongst UP's */
62 for (i = 0; i < up; i++) {
63 netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
64 offset += priv->num_tx_rings_p_up;
70 #ifdef CONFIG_RFS_ACCEL
72 struct mlx4_en_filter {
73 struct list_head next;
74 struct work_struct work;
82 struct mlx4_en_priv *priv;
83 u32 flow_id; /* RFS infrastructure id */
84 int id; /* mlx4_en driver id */
85 u64 reg_id; /* Flow steering API id */
86 u8 activated; /* Used to prevent expiry before filter
89 struct hlist_node filter_chain;
92 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
94 static void mlx4_en_filter_work(struct work_struct *work)
96 struct mlx4_en_filter *filter = container_of(work,
97 struct mlx4_en_filter,
99 struct mlx4_en_priv *priv = filter->priv;
100 struct mlx4_spec_list spec_tcp = {
101 .id = MLX4_NET_TRANS_RULE_ID_TCP,
104 .dst_port = filter->dst_port,
105 .dst_port_msk = (__force __be16)-1,
106 .src_port = filter->src_port,
107 .src_port_msk = (__force __be16)-1,
111 struct mlx4_spec_list spec_ip = {
112 .id = MLX4_NET_TRANS_RULE_ID_IPV4,
115 .dst_ip = filter->dst_ip,
116 .dst_ip_msk = (__force __be32)-1,
117 .src_ip = filter->src_ip,
118 .src_ip_msk = (__force __be32)-1,
122 struct mlx4_spec_list spec_eth = {
123 .id = MLX4_NET_TRANS_RULE_ID_ETH,
125 struct mlx4_net_trans_rule rule = {
126 .list = LIST_HEAD_INIT(rule.list),
127 .queue_mode = MLX4_NET_TRANS_Q_LIFO,
130 .promisc_mode = MLX4_FS_PROMISC_NONE,
132 .priority = MLX4_DOMAIN_RFS,
135 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
137 list_add_tail(&spec_eth.list, &rule.list);
138 list_add_tail(&spec_ip.list, &rule.list);
139 list_add_tail(&spec_tcp.list, &rule.list);
141 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
142 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
143 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
145 filter->activated = 0;
147 if (filter->reg_id) {
148 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
149 if (rc && rc != -ENOENT)
150 en_err(priv, "Error detaching flow. rc = %d\n", rc);
153 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
155 en_err(priv, "Error attaching flow. err = %d\n", rc);
157 mlx4_en_filter_rfs_expire(priv);
159 filter->activated = 1;
162 static inline struct hlist_head *
163 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
164 __be16 src_port, __be16 dst_port)
169 l = (__force unsigned long)src_port |
170 ((__force unsigned long)dst_port << 2);
171 l ^= (__force unsigned long)(src_ip ^ dst_ip);
173 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
175 return &priv->filter_hash[bucket_idx];
178 static struct mlx4_en_filter *
179 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
180 __be32 dst_ip, __be16 src_port, __be16 dst_port,
183 struct mlx4_en_filter *filter = NULL;
185 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
190 filter->rxq_index = rxq_index;
191 INIT_WORK(&filter->work, mlx4_en_filter_work);
193 filter->src_ip = src_ip;
194 filter->dst_ip = dst_ip;
195 filter->src_port = src_port;
196 filter->dst_port = dst_port;
198 filter->flow_id = flow_id;
200 filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
202 list_add_tail(&filter->next, &priv->filters);
203 hlist_add_head(&filter->filter_chain,
204 filter_hash_bucket(priv, src_ip, dst_ip, src_port,
210 static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
212 struct mlx4_en_priv *priv = filter->priv;
215 list_del(&filter->next);
217 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
218 if (rc && rc != -ENOENT)
219 en_err(priv, "Error detaching flow. rc = %d\n", rc);
224 static inline struct mlx4_en_filter *
225 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
226 __be16 src_port, __be16 dst_port)
228 struct mlx4_en_filter *filter;
229 struct mlx4_en_filter *ret = NULL;
231 hlist_for_each_entry(filter,
232 filter_hash_bucket(priv, src_ip, dst_ip,
235 if (filter->src_ip == src_ip &&
236 filter->dst_ip == dst_ip &&
237 filter->src_port == src_port &&
238 filter->dst_port == dst_port) {
248 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
249 u16 rxq_index, u32 flow_id)
251 struct mlx4_en_priv *priv = netdev_priv(net_dev);
252 struct mlx4_en_filter *filter;
253 const struct iphdr *ip;
259 int nhoff = skb_network_offset(skb);
262 if (skb->protocol != htons(ETH_P_IP))
263 return -EPROTONOSUPPORT;
265 ip = (const struct iphdr *)(skb->data + nhoff);
266 if (ip_is_fragment(ip))
267 return -EPROTONOSUPPORT;
269 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
276 if (ip->protocol != IPPROTO_TCP)
277 return -EPROTONOSUPPORT;
279 spin_lock_bh(&priv->filters_lock);
280 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, src_port, dst_port);
282 if (filter->rxq_index == rxq_index)
285 filter->rxq_index = rxq_index;
287 filter = mlx4_en_filter_alloc(priv, rxq_index,
289 src_port, dst_port, flow_id);
296 queue_work(priv->mdev->workqueue, &filter->work);
301 spin_unlock_bh(&priv->filters_lock);
306 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv,
307 struct mlx4_en_rx_ring *rx_ring)
309 struct mlx4_en_filter *filter, *tmp;
312 spin_lock_bh(&priv->filters_lock);
313 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
314 list_move(&filter->next, &del_list);
315 hlist_del(&filter->filter_chain);
317 spin_unlock_bh(&priv->filters_lock);
319 list_for_each_entry_safe(filter, tmp, &del_list, next) {
320 cancel_work_sync(&filter->work);
321 mlx4_en_filter_free(filter);
325 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
327 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
331 spin_lock_bh(&priv->filters_lock);
332 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
333 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
336 if (filter->activated &&
337 !work_pending(&filter->work) &&
338 rps_may_expire_flow(priv->dev,
339 filter->rxq_index, filter->flow_id,
341 list_move(&filter->next, &del_list);
342 hlist_del(&filter->filter_chain);
344 last_filter = filter;
349 if (last_filter && (&last_filter->next != priv->filters.next))
350 list_move(&priv->filters, &last_filter->next);
352 spin_unlock_bh(&priv->filters_lock);
354 list_for_each_entry_safe(filter, tmp, &del_list, next)
355 mlx4_en_filter_free(filter);
359 static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
360 __be16 proto, u16 vid)
362 struct mlx4_en_priv *priv = netdev_priv(dev);
363 struct mlx4_en_dev *mdev = priv->mdev;
367 en_dbg(HW, priv, "adding VLAN:%d\n", vid);
369 set_bit(vid, priv->active_vlans);
371 /* Add VID to port VLAN filter */
372 mutex_lock(&mdev->state_lock);
373 if (mdev->device_up && priv->port_up) {
374 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
376 en_err(priv, "Failed configuring VLAN filter\n");
378 if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
379 en_err(priv, "failed adding vlan %d\n", vid);
380 mutex_unlock(&mdev->state_lock);
385 static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
386 __be16 proto, u16 vid)
388 struct mlx4_en_priv *priv = netdev_priv(dev);
389 struct mlx4_en_dev *mdev = priv->mdev;
393 en_dbg(HW, priv, "Killing VID:%d\n", vid);
395 clear_bit(vid, priv->active_vlans);
397 /* Remove VID from port VLAN filter */
398 mutex_lock(&mdev->state_lock);
399 if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
400 mlx4_unregister_vlan(mdev->dev, priv->port, idx);
402 en_err(priv, "could not find vid %d in cache\n", vid);
404 if (mdev->device_up && priv->port_up) {
405 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
407 en_err(priv, "Failed configuring VLAN filter\n");
409 mutex_unlock(&mdev->state_lock);
414 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
417 for (i = ETH_ALEN - 1; i >= 0; --i) {
418 dst_mac[i] = src_mac & 0xff;
421 memset(&dst_mac[ETH_ALEN], 0, 2);
424 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
425 unsigned char *mac, int *qpn, u64 *reg_id)
427 struct mlx4_en_dev *mdev = priv->mdev;
428 struct mlx4_dev *dev = mdev->dev;
431 switch (dev->caps.steering_mode) {
432 case MLX4_STEERING_MODE_B0: {
437 memcpy(&gid[10], mac, ETH_ALEN);
440 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
443 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
444 struct mlx4_spec_list spec_eth = { {NULL} };
445 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
447 struct mlx4_net_trans_rule rule = {
448 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
451 .promisc_mode = MLX4_FS_PROMISC_NONE,
452 .priority = MLX4_DOMAIN_NIC,
455 rule.port = priv->port;
457 INIT_LIST_HEAD(&rule.list);
459 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
460 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
461 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
462 list_add_tail(&spec_eth.list, &rule.list);
464 err = mlx4_flow_attach(dev, &rule, reg_id);
471 en_warn(priv, "Failed Attaching Unicast\n");
476 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
477 unsigned char *mac, int qpn, u64 reg_id)
479 struct mlx4_en_dev *mdev = priv->mdev;
480 struct mlx4_dev *dev = mdev->dev;
482 switch (dev->caps.steering_mode) {
483 case MLX4_STEERING_MODE_B0: {
488 memcpy(&gid[10], mac, ETH_ALEN);
491 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
494 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
495 mlx4_flow_detach(dev, reg_id);
499 en_err(priv, "Invalid steering mode.\n");
503 static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
505 struct mlx4_en_dev *mdev = priv->mdev;
506 struct mlx4_dev *dev = mdev->dev;
507 struct mlx4_mac_entry *entry;
511 int *qpn = &priv->base_qpn;
512 u64 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr);
514 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
515 priv->dev->dev_addr);
516 index = mlx4_register_mac(dev, priv->port, mac);
519 en_err(priv, "Failed adding MAC: %pM\n",
520 priv->dev->dev_addr);
524 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
525 int base_qpn = mlx4_get_base_qpn(dev, priv->port);
526 *qpn = base_qpn + index;
530 err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
531 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
533 en_err(priv, "Failed to reserve qp for mac registration\n");
537 err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
541 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
546 memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
547 entry->reg_id = reg_id;
549 hlist_add_head_rcu(&entry->hlist,
550 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
555 mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
558 mlx4_qp_release_range(dev, *qpn, 1);
561 mlx4_unregister_mac(dev, priv->port, mac);
565 static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
567 struct mlx4_en_dev *mdev = priv->mdev;
568 struct mlx4_dev *dev = mdev->dev;
569 int qpn = priv->base_qpn;
572 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
573 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr);
574 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
575 priv->dev->dev_addr);
576 mlx4_unregister_mac(dev, priv->port, mac);
578 struct mlx4_mac_entry *entry;
579 struct hlist_node *tmp;
580 struct hlist_head *bucket;
583 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
584 bucket = &priv->mac_hash[i];
585 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
586 mac = mlx4_en_mac_to_u64(entry->mac);
587 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
589 mlx4_en_uc_steer_release(priv, entry->mac,
592 mlx4_unregister_mac(dev, priv->port, mac);
593 hlist_del_rcu(&entry->hlist);
594 kfree_rcu(entry, rcu);
598 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
600 mlx4_qp_release_range(dev, qpn, 1);
601 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
605 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
606 unsigned char *new_mac, unsigned char *prev_mac)
608 struct mlx4_en_dev *mdev = priv->mdev;
609 struct mlx4_dev *dev = mdev->dev;
611 u64 new_mac_u64 = mlx4_en_mac_to_u64(new_mac);
613 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
614 struct hlist_head *bucket;
615 unsigned int mac_hash;
616 struct mlx4_mac_entry *entry;
617 struct hlist_node *tmp;
618 u64 prev_mac_u64 = mlx4_en_mac_to_u64(prev_mac);
620 bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
621 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
622 if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
623 mlx4_en_uc_steer_release(priv, entry->mac,
625 mlx4_unregister_mac(dev, priv->port,
627 hlist_del_rcu(&entry->hlist);
629 memcpy(entry->mac, new_mac, ETH_ALEN);
631 mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
632 hlist_add_head_rcu(&entry->hlist,
633 &priv->mac_hash[mac_hash]);
634 mlx4_register_mac(dev, priv->port, new_mac_u64);
635 err = mlx4_en_uc_steer_add(priv, new_mac,
644 return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
647 u64 mlx4_en_mac_to_u64(u8 *addr)
652 for (i = 0; i < ETH_ALEN; i++) {
659 static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv)
664 /* Remove old MAC and insert the new one */
665 err = mlx4_en_replace_mac(priv, priv->base_qpn,
666 priv->dev->dev_addr, priv->prev_mac);
668 en_err(priv, "Failed changing HW MAC address\n");
669 memcpy(priv->prev_mac, priv->dev->dev_addr,
670 sizeof(priv->prev_mac));
672 en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
677 static int mlx4_en_set_mac(struct net_device *dev, void *addr)
679 struct mlx4_en_priv *priv = netdev_priv(dev);
680 struct mlx4_en_dev *mdev = priv->mdev;
681 struct sockaddr *saddr = addr;
684 if (!is_valid_ether_addr(saddr->sa_data))
685 return -EADDRNOTAVAIL;
687 memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
689 mutex_lock(&mdev->state_lock);
690 err = mlx4_en_do_set_mac(priv);
691 mutex_unlock(&mdev->state_lock);
696 static void mlx4_en_clear_list(struct net_device *dev)
698 struct mlx4_en_priv *priv = netdev_priv(dev);
699 struct mlx4_en_mc_list *tmp, *mc_to_del;
701 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
702 list_del(&mc_to_del->list);
707 static void mlx4_en_cache_mclist(struct net_device *dev)
709 struct mlx4_en_priv *priv = netdev_priv(dev);
710 struct netdev_hw_addr *ha;
711 struct mlx4_en_mc_list *tmp;
713 mlx4_en_clear_list(dev);
714 netdev_for_each_mc_addr(ha, dev) {
715 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
717 mlx4_en_clear_list(dev);
720 memcpy(tmp->addr, ha->addr, ETH_ALEN);
721 list_add_tail(&tmp->list, &priv->mc_list);
725 static void update_mclist_flags(struct mlx4_en_priv *priv,
726 struct list_head *dst,
727 struct list_head *src)
729 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
732 /* Find all the entries that should be removed from dst,
733 * These are the entries that are not found in src
735 list_for_each_entry(dst_tmp, dst, list) {
737 list_for_each_entry(src_tmp, src, list) {
738 if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) {
744 dst_tmp->action = MCLIST_REM;
747 /* Add entries that exist in src but not in dst
748 * mark them as need to add
750 list_for_each_entry(src_tmp, src, list) {
752 list_for_each_entry(dst_tmp, dst, list) {
753 if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) {
754 dst_tmp->action = MCLIST_NONE;
760 new_mc = kmemdup(src_tmp,
761 sizeof(struct mlx4_en_mc_list),
766 new_mc->action = MCLIST_ADD;
767 list_add_tail(&new_mc->list, dst);
772 static void mlx4_en_set_rx_mode(struct net_device *dev)
774 struct mlx4_en_priv *priv = netdev_priv(dev);
779 queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
782 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
783 struct mlx4_en_dev *mdev)
787 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
788 if (netif_msg_rx_status(priv))
789 en_warn(priv, "Entering promiscuous mode\n");
790 priv->flags |= MLX4_EN_FLAG_PROMISC;
792 /* Enable promiscouos mode */
793 switch (mdev->dev->caps.steering_mode) {
794 case MLX4_STEERING_MODE_DEVICE_MANAGED:
795 err = mlx4_flow_steer_promisc_add(mdev->dev,
798 MLX4_FS_PROMISC_UPLINK);
800 en_err(priv, "Failed enabling promiscuous mode\n");
801 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
804 case MLX4_STEERING_MODE_B0:
805 err = mlx4_unicast_promisc_add(mdev->dev,
809 en_err(priv, "Failed enabling unicast promiscuous mode\n");
811 /* Add the default qp number as multicast
814 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
815 err = mlx4_multicast_promisc_add(mdev->dev,
819 en_err(priv, "Failed enabling multicast promiscuous mode\n");
820 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
824 case MLX4_STEERING_MODE_A0:
825 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
830 en_err(priv, "Failed enabling promiscuous mode\n");
834 /* Disable port multicast filter (unconditionally) */
835 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
836 0, MLX4_MCAST_DISABLE);
838 en_err(priv, "Failed disabling multicast filter\n");
840 /* Disable port VLAN filter */
841 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
843 en_err(priv, "Failed disabling VLAN filter\n");
847 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
848 struct mlx4_en_dev *mdev)
852 if (netif_msg_rx_status(priv))
853 en_warn(priv, "Leaving promiscuous mode\n");
854 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
856 /* Disable promiscouos mode */
857 switch (mdev->dev->caps.steering_mode) {
858 case MLX4_STEERING_MODE_DEVICE_MANAGED:
859 err = mlx4_flow_steer_promisc_remove(mdev->dev,
861 MLX4_FS_PROMISC_UPLINK);
863 en_err(priv, "Failed disabling promiscuous mode\n");
864 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
867 case MLX4_STEERING_MODE_B0:
868 err = mlx4_unicast_promisc_remove(mdev->dev,
872 en_err(priv, "Failed disabling unicast promiscuous mode\n");
873 /* Disable Multicast promisc */
874 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
875 err = mlx4_multicast_promisc_remove(mdev->dev,
879 en_err(priv, "Failed disabling multicast promiscuous mode\n");
880 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
884 case MLX4_STEERING_MODE_A0:
885 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
889 en_err(priv, "Failed disabling promiscuous mode\n");
893 /* Enable port VLAN filter */
894 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
896 en_err(priv, "Failed enabling VLAN filter\n");
899 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
900 struct net_device *dev,
901 struct mlx4_en_dev *mdev)
903 struct mlx4_en_mc_list *mclist, *tmp;
905 u8 mc_list[16] = {0};
908 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
909 if (dev->flags & IFF_ALLMULTI) {
910 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
911 0, MLX4_MCAST_DISABLE);
913 en_err(priv, "Failed disabling multicast filter\n");
915 /* Add the default qp number as multicast promisc */
916 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
917 switch (mdev->dev->caps.steering_mode) {
918 case MLX4_STEERING_MODE_DEVICE_MANAGED:
919 err = mlx4_flow_steer_promisc_add(mdev->dev,
922 MLX4_FS_PROMISC_ALL_MULTI);
925 case MLX4_STEERING_MODE_B0:
926 err = mlx4_multicast_promisc_add(mdev->dev,
931 case MLX4_STEERING_MODE_A0:
935 en_err(priv, "Failed entering multicast promisc mode\n");
936 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
939 /* Disable Multicast promisc */
940 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
941 switch (mdev->dev->caps.steering_mode) {
942 case MLX4_STEERING_MODE_DEVICE_MANAGED:
943 err = mlx4_flow_steer_promisc_remove(mdev->dev,
945 MLX4_FS_PROMISC_ALL_MULTI);
948 case MLX4_STEERING_MODE_B0:
949 err = mlx4_multicast_promisc_remove(mdev->dev,
954 case MLX4_STEERING_MODE_A0:
958 en_err(priv, "Failed disabling multicast promiscuous mode\n");
959 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
962 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
963 0, MLX4_MCAST_DISABLE);
965 en_err(priv, "Failed disabling multicast filter\n");
967 /* Flush mcast filter and init it with broadcast address */
968 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
969 1, MLX4_MCAST_CONFIG);
971 /* Update multicast list - we cache all addresses so they won't
972 * change while HW is updated holding the command semaphor */
973 netif_addr_lock_bh(dev);
974 mlx4_en_cache_mclist(dev);
975 netif_addr_unlock_bh(dev);
976 list_for_each_entry(mclist, &priv->mc_list, list) {
977 mcast_addr = mlx4_en_mac_to_u64(mclist->addr);
978 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
979 mcast_addr, 0, MLX4_MCAST_CONFIG);
981 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
982 0, MLX4_MCAST_ENABLE);
984 en_err(priv, "Failed enabling multicast filter\n");
986 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
987 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
988 if (mclist->action == MCLIST_REM) {
989 /* detach this address and delete from list */
990 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
991 mc_list[5] = priv->port;
992 err = mlx4_multicast_detach(mdev->dev,
993 &priv->rss_map.indir_qp,
998 en_err(priv, "Fail to detach multicast address\n");
1000 /* remove from list */
1001 list_del(&mclist->list);
1003 } else if (mclist->action == MCLIST_ADD) {
1004 /* attach the address */
1005 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1006 /* needed for B0 steering support */
1007 mc_list[5] = priv->port;
1008 err = mlx4_multicast_attach(mdev->dev,
1009 &priv->rss_map.indir_qp,
1015 en_err(priv, "Fail to attach multicast address\n");
1022 static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
1023 struct net_device *dev,
1024 struct mlx4_en_dev *mdev)
1026 struct netdev_hw_addr *ha;
1027 struct mlx4_mac_entry *entry;
1028 struct hlist_node *tmp;
1032 struct hlist_head *bucket;
1037 /* Note that we do not need to protect our mac_hash traversal with rcu,
1038 * since all modification code is protected by mdev->state_lock
1041 /* find what to remove */
1042 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1043 bucket = &priv->mac_hash[i];
1044 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1046 netdev_for_each_uc_addr(ha, dev) {
1047 if (ether_addr_equal_64bits(entry->mac,
1054 /* MAC address of the port is not in uc list */
1055 if (ether_addr_equal_64bits(entry->mac, dev->dev_addr))
1059 mac = mlx4_en_mac_to_u64(entry->mac);
1060 mlx4_en_uc_steer_release(priv, entry->mac,
1063 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1065 hlist_del_rcu(&entry->hlist);
1066 kfree_rcu(entry, rcu);
1067 en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
1068 entry->mac, priv->port);
1074 /* if we didn't remove anything, there is no use in trying to add
1075 * again once we are in a forced promisc mode state
1077 if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
1080 prev_flags = priv->flags;
1081 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
1083 /* find what to add */
1084 netdev_for_each_uc_addr(ha, dev) {
1086 bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
1087 hlist_for_each_entry(entry, bucket, hlist) {
1088 if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
1095 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1097 en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
1098 ha->addr, priv->port);
1099 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1102 mac = mlx4_en_mac_to_u64(ha->addr);
1103 memcpy(entry->mac, ha->addr, ETH_ALEN);
1104 err = mlx4_register_mac(mdev->dev, priv->port, mac);
1106 en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
1107 ha->addr, priv->port, err);
1109 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1112 err = mlx4_en_uc_steer_add(priv, ha->addr,
1116 en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
1117 ha->addr, priv->port, err);
1118 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1120 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1123 unsigned int mac_hash;
1124 en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
1125 ha->addr, priv->port);
1126 mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
1127 bucket = &priv->mac_hash[mac_hash];
1128 hlist_add_head_rcu(&entry->hlist, bucket);
1133 if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1134 en_warn(priv, "Forcing promiscuous mode on port:%d\n",
1136 } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1137 en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
1142 static void mlx4_en_do_set_rx_mode(struct work_struct *work)
1144 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1146 struct mlx4_en_dev *mdev = priv->mdev;
1147 struct net_device *dev = priv->dev;
1149 mutex_lock(&mdev->state_lock);
1150 if (!mdev->device_up) {
1151 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
1154 if (!priv->port_up) {
1155 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
1159 if (!netif_carrier_ok(dev)) {
1160 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
1161 if (priv->port_state.link_state) {
1162 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
1163 netif_carrier_on(dev);
1164 en_dbg(LINK, priv, "Link Up\n");
1169 if (dev->priv_flags & IFF_UNICAST_FLT)
1170 mlx4_en_do_uc_filter(priv, dev, mdev);
1172 /* Promsicuous mode: disable all filters */
1173 if ((dev->flags & IFF_PROMISC) ||
1174 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
1175 mlx4_en_set_promisc_mode(priv, mdev);
1179 /* Not in promiscuous mode */
1180 if (priv->flags & MLX4_EN_FLAG_PROMISC)
1181 mlx4_en_clear_promisc_mode(priv, mdev);
1183 mlx4_en_do_multicast(priv, dev, mdev);
1185 mutex_unlock(&mdev->state_lock);
1188 #ifdef CONFIG_NET_POLL_CONTROLLER
1189 static void mlx4_en_netpoll(struct net_device *dev)
1191 struct mlx4_en_priv *priv = netdev_priv(dev);
1192 struct mlx4_en_cq *cq;
1193 unsigned long flags;
1196 for (i = 0; i < priv->rx_ring_num; i++) {
1197 cq = &priv->rx_cq[i];
1198 spin_lock_irqsave(&cq->lock, flags);
1199 napi_synchronize(&cq->napi);
1200 mlx4_en_process_rx_cq(dev, cq, 0);
1201 spin_unlock_irqrestore(&cq->lock, flags);
1206 static void mlx4_en_tx_timeout(struct net_device *dev)
1208 struct mlx4_en_priv *priv = netdev_priv(dev);
1209 struct mlx4_en_dev *mdev = priv->mdev;
1211 if (netif_msg_timer(priv))
1212 en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
1214 priv->port_stats.tx_timeout++;
1215 en_dbg(DRV, priv, "Scheduling watchdog\n");
1216 queue_work(mdev->workqueue, &priv->watchdog_task);
1220 static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
1222 struct mlx4_en_priv *priv = netdev_priv(dev);
1224 spin_lock_bh(&priv->stats_lock);
1225 memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
1226 spin_unlock_bh(&priv->stats_lock);
1228 return &priv->ret_stats;
1231 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
1233 struct mlx4_en_cq *cq;
1236 /* If we haven't received a specific coalescing setting
1237 * (module param), we set the moderation parameters as follows:
1238 * - moder_cnt is set to the number of mtu sized packets to
1239 * satisfy our coalescing target.
1240 * - moder_time is set to a fixed value.
1242 priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
1243 priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
1244 priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
1245 priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
1246 en_dbg(INTR, priv, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1247 priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
1249 /* Setup cq moderation params */
1250 for (i = 0; i < priv->rx_ring_num; i++) {
1251 cq = &priv->rx_cq[i];
1252 cq->moder_cnt = priv->rx_frames;
1253 cq->moder_time = priv->rx_usecs;
1254 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1255 priv->last_moder_packets[i] = 0;
1256 priv->last_moder_bytes[i] = 0;
1259 for (i = 0; i < priv->tx_ring_num; i++) {
1260 cq = &priv->tx_cq[i];
1261 cq->moder_cnt = priv->tx_frames;
1262 cq->moder_time = priv->tx_usecs;
1265 /* Reset auto-moderation params */
1266 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
1267 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
1268 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
1269 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
1270 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
1271 priv->adaptive_rx_coal = 1;
1272 priv->last_moder_jiffies = 0;
1273 priv->last_moder_tx_packets = 0;
1276 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
1278 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
1279 struct mlx4_en_cq *cq;
1280 unsigned long packets;
1282 unsigned long avg_pkt_size;
1283 unsigned long rx_packets;
1284 unsigned long rx_bytes;
1285 unsigned long rx_pkt_diff;
1289 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
1292 for (ring = 0; ring < priv->rx_ring_num; ring++) {
1293 spin_lock_bh(&priv->stats_lock);
1294 rx_packets = priv->rx_ring[ring].packets;
1295 rx_bytes = priv->rx_ring[ring].bytes;
1296 spin_unlock_bh(&priv->stats_lock);
1298 rx_pkt_diff = ((unsigned long) (rx_packets -
1299 priv->last_moder_packets[ring]));
1300 packets = rx_pkt_diff;
1301 rate = packets * HZ / period;
1302 avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
1303 priv->last_moder_bytes[ring])) / packets : 0;
1305 /* Apply auto-moderation only when packet rate
1306 * exceeds a rate that it matters */
1307 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
1308 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
1309 if (rate < priv->pkt_rate_low)
1310 moder_time = priv->rx_usecs_low;
1311 else if (rate > priv->pkt_rate_high)
1312 moder_time = priv->rx_usecs_high;
1314 moder_time = (rate - priv->pkt_rate_low) *
1315 (priv->rx_usecs_high - priv->rx_usecs_low) /
1316 (priv->pkt_rate_high - priv->pkt_rate_low) +
1319 moder_time = priv->rx_usecs_low;
1322 if (moder_time != priv->last_moder_time[ring]) {
1323 priv->last_moder_time[ring] = moder_time;
1324 cq = &priv->rx_cq[ring];
1325 cq->moder_time = moder_time;
1326 err = mlx4_en_set_cq_moder(priv, cq);
1328 en_err(priv, "Failed modifying moderation for cq:%d\n",
1331 priv->last_moder_packets[ring] = rx_packets;
1332 priv->last_moder_bytes[ring] = rx_bytes;
1335 priv->last_moder_jiffies = jiffies;
1338 static void mlx4_en_do_get_stats(struct work_struct *work)
1340 struct delayed_work *delay = to_delayed_work(work);
1341 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1343 struct mlx4_en_dev *mdev = priv->mdev;
1346 mutex_lock(&mdev->state_lock);
1347 if (mdev->device_up) {
1348 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
1350 en_dbg(HW, priv, "Could not update stats\n");
1353 mlx4_en_auto_moderation(priv);
1355 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
1357 if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
1358 mlx4_en_do_set_mac(priv);
1359 mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
1361 mutex_unlock(&mdev->state_lock);
1364 static void mlx4_en_linkstate(struct work_struct *work)
1366 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1368 struct mlx4_en_dev *mdev = priv->mdev;
1369 int linkstate = priv->link_state;
1371 mutex_lock(&mdev->state_lock);
1372 /* If observable port state changed set carrier state and
1373 * report to system log */
1374 if (priv->last_link_state != linkstate) {
1375 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
1376 en_info(priv, "Link Down\n");
1377 netif_carrier_off(priv->dev);
1379 en_info(priv, "Link Up\n");
1380 netif_carrier_on(priv->dev);
1383 priv->last_link_state = linkstate;
1384 mutex_unlock(&mdev->state_lock);
1388 int mlx4_en_start_port(struct net_device *dev)
1390 struct mlx4_en_priv *priv = netdev_priv(dev);
1391 struct mlx4_en_dev *mdev = priv->mdev;
1392 struct mlx4_en_cq *cq;
1393 struct mlx4_en_tx_ring *tx_ring;
1399 u8 mc_list[16] = {0};
1401 if (priv->port_up) {
1402 en_dbg(DRV, priv, "start port called while port already up\n");
1406 INIT_LIST_HEAD(&priv->mc_list);
1407 INIT_LIST_HEAD(&priv->curr_list);
1408 INIT_LIST_HEAD(&priv->ethtool_list);
1409 memset(&priv->ethtool_rules[0], 0,
1410 sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
1412 /* Calculate Rx buf size */
1413 dev->mtu = min(dev->mtu, priv->max_mtu);
1414 mlx4_en_calc_rx_buf(dev);
1415 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
1417 /* Configure rx cq's and rings */
1418 err = mlx4_en_activate_rx_rings(priv);
1420 en_err(priv, "Failed to activate RX rings\n");
1423 for (i = 0; i < priv->rx_ring_num; i++) {
1424 cq = &priv->rx_cq[i];
1426 err = mlx4_en_activate_cq(priv, cq, i);
1428 en_err(priv, "Failed activating Rx CQ\n");
1431 for (j = 0; j < cq->size; j++)
1432 cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
1433 err = mlx4_en_set_cq_moder(priv, cq);
1435 en_err(priv, "Failed setting cq moderation parameters");
1436 mlx4_en_deactivate_cq(priv, cq);
1439 mlx4_en_arm_cq(priv, cq);
1440 priv->rx_ring[i].cqn = cq->mcq.cqn;
1445 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
1446 err = mlx4_en_get_qp(priv);
1448 en_err(priv, "Failed getting eth qp\n");
1451 mdev->mac_removed[priv->port] = 0;
1453 err = mlx4_en_config_rss_steer(priv);
1455 en_err(priv, "Failed configuring rss steering\n");
1459 err = mlx4_en_create_drop_qp(priv);
1463 /* Configure tx cq's and rings */
1464 for (i = 0; i < priv->tx_ring_num; i++) {
1466 cq = &priv->tx_cq[i];
1467 err = mlx4_en_activate_cq(priv, cq, i);
1469 en_err(priv, "Failed allocating Tx CQ\n");
1472 err = mlx4_en_set_cq_moder(priv, cq);
1474 en_err(priv, "Failed setting cq moderation parameters");
1475 mlx4_en_deactivate_cq(priv, cq);
1478 en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
1479 cq->buf->wqe_index = cpu_to_be16(0xffff);
1481 /* Configure ring */
1482 tx_ring = &priv->tx_ring[i];
1483 err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
1484 i / priv->num_tx_rings_p_up);
1486 en_err(priv, "Failed allocating Tx ring\n");
1487 mlx4_en_deactivate_cq(priv, cq);
1490 tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
1492 /* Arm CQ for TX completions */
1493 mlx4_en_arm_cq(priv, cq);
1495 /* Set initial ownership of all Tx TXBBs to SW (1) */
1496 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
1497 *((u32 *) (tx_ring->buf + j)) = 0xffffffff;
1501 /* Configure port */
1502 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1503 priv->rx_skb_size + ETH_FCS_LEN,
1504 priv->prof->tx_pause,
1506 priv->prof->rx_pause,
1507 priv->prof->rx_ppp);
1509 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
1513 /* Set default qp number */
1514 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
1516 en_err(priv, "Failed setting default qp numbers\n");
1521 en_dbg(HW, priv, "Initializing port\n");
1522 err = mlx4_INIT_PORT(mdev->dev, priv->port);
1524 en_err(priv, "Failed Initializing port\n");
1528 /* Attach rx QP to bradcast address */
1529 memset(&mc_list[10], 0xff, ETH_ALEN);
1530 mc_list[5] = priv->port; /* needed for B0 steering support */
1531 if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1532 priv->port, 0, MLX4_PROT_ETH,
1533 &priv->broadcast_id))
1534 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
1536 /* Must redo promiscuous mode setup. */
1537 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
1539 /* Schedule multicast task to populate multicast list */
1540 queue_work(mdev->workqueue, &priv->rx_mode_task);
1542 mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
1544 priv->port_up = true;
1545 netif_tx_start_all_queues(dev);
1546 netif_device_attach(dev);
1551 while (tx_index--) {
1552 mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
1553 mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]);
1555 mlx4_en_destroy_drop_qp(priv);
1557 mlx4_en_release_rss_steer(priv);
1559 mlx4_en_put_qp(priv);
1562 mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
1563 for (i = 0; i < priv->rx_ring_num; i++)
1564 mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
1566 return err; /* need to close devices */
1570 void mlx4_en_stop_port(struct net_device *dev, int detach)
1572 struct mlx4_en_priv *priv = netdev_priv(dev);
1573 struct mlx4_en_dev *mdev = priv->mdev;
1574 struct mlx4_en_mc_list *mclist, *tmp;
1575 struct ethtool_flow_id *flow, *tmp_flow;
1577 u8 mc_list[16] = {0};
1579 if (!priv->port_up) {
1580 en_dbg(DRV, priv, "stop port called while port already down\n");
1584 /* Synchronize with tx routine */
1585 netif_tx_lock_bh(dev);
1587 netif_device_detach(dev);
1588 netif_tx_stop_all_queues(dev);
1589 netif_tx_unlock_bh(dev);
1591 netif_tx_disable(dev);
1593 /* Set port as not active */
1594 priv->port_up = false;
1596 /* Promsicuous mode */
1597 if (mdev->dev->caps.steering_mode ==
1598 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1599 priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
1600 MLX4_EN_FLAG_MC_PROMISC);
1601 mlx4_flow_steer_promisc_remove(mdev->dev,
1603 MLX4_FS_PROMISC_UPLINK);
1604 mlx4_flow_steer_promisc_remove(mdev->dev,
1606 MLX4_FS_PROMISC_ALL_MULTI);
1607 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
1608 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
1610 /* Disable promiscouos mode */
1611 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
1614 /* Disable Multicast promisc */
1615 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1616 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
1618 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1622 /* Detach All multicasts */
1623 memset(&mc_list[10], 0xff, ETH_ALEN);
1624 mc_list[5] = priv->port; /* needed for B0 steering support */
1625 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1626 MLX4_PROT_ETH, priv->broadcast_id);
1627 list_for_each_entry(mclist, &priv->curr_list, list) {
1628 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1629 mc_list[5] = priv->port;
1630 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
1631 mc_list, MLX4_PROT_ETH, mclist->reg_id);
1633 mlx4_en_clear_list(dev);
1634 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1635 list_del(&mclist->list);
1639 /* Flush multicast filter */
1640 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
1642 /* Remove flow steering rules for the port*/
1643 if (mdev->dev->caps.steering_mode ==
1644 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1646 list_for_each_entry_safe(flow, tmp_flow,
1647 &priv->ethtool_list, list) {
1648 mlx4_flow_detach(mdev->dev, flow->id);
1649 list_del(&flow->list);
1653 mlx4_en_destroy_drop_qp(priv);
1656 for (i = 0; i < priv->tx_ring_num; i++) {
1657 mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]);
1658 mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]);
1662 for (i = 0; i < priv->tx_ring_num; i++)
1663 mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]);
1666 mlx4_en_release_rss_steer(priv);
1668 /* Unregister Mac address for the port */
1669 mlx4_en_put_qp(priv);
1670 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN))
1671 mdev->mac_removed[priv->port] = 1;
1674 for (i = 0; i < priv->rx_ring_num; i++) {
1675 mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
1676 while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state))
1678 mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
1682 mlx4_CLOSE_PORT(mdev->dev, priv->port);
1685 static void mlx4_en_restart(struct work_struct *work)
1687 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1689 struct mlx4_en_dev *mdev = priv->mdev;
1690 struct net_device *dev = priv->dev;
1692 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
1694 mutex_lock(&mdev->state_lock);
1695 if (priv->port_up) {
1696 mlx4_en_stop_port(dev, 1);
1697 if (mlx4_en_start_port(dev))
1698 en_err(priv, "Failed restarting port %d\n", priv->port);
1700 mutex_unlock(&mdev->state_lock);
1703 static void mlx4_en_clear_stats(struct net_device *dev)
1705 struct mlx4_en_priv *priv = netdev_priv(dev);
1706 struct mlx4_en_dev *mdev = priv->mdev;
1709 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
1710 en_dbg(HW, priv, "Failed dumping statistics\n");
1712 memset(&priv->stats, 0, sizeof(priv->stats));
1713 memset(&priv->pstats, 0, sizeof(priv->pstats));
1714 memset(&priv->pkstats, 0, sizeof(priv->pkstats));
1715 memset(&priv->port_stats, 0, sizeof(priv->port_stats));
1717 for (i = 0; i < priv->tx_ring_num; i++) {
1718 priv->tx_ring[i].bytes = 0;
1719 priv->tx_ring[i].packets = 0;
1720 priv->tx_ring[i].tx_csum = 0;
1722 for (i = 0; i < priv->rx_ring_num; i++) {
1723 priv->rx_ring[i].bytes = 0;
1724 priv->rx_ring[i].packets = 0;
1725 priv->rx_ring[i].csum_ok = 0;
1726 priv->rx_ring[i].csum_none = 0;
1730 static int mlx4_en_open(struct net_device *dev)
1732 struct mlx4_en_priv *priv = netdev_priv(dev);
1733 struct mlx4_en_dev *mdev = priv->mdev;
1736 mutex_lock(&mdev->state_lock);
1738 if (!mdev->device_up) {
1739 en_err(priv, "Cannot open - device down/disabled\n");
1744 /* Reset HW statistics and SW counters */
1745 mlx4_en_clear_stats(dev);
1747 err = mlx4_en_start_port(dev);
1749 en_err(priv, "Failed starting port:%d\n", priv->port);
1752 mutex_unlock(&mdev->state_lock);
1757 static int mlx4_en_close(struct net_device *dev)
1759 struct mlx4_en_priv *priv = netdev_priv(dev);
1760 struct mlx4_en_dev *mdev = priv->mdev;
1762 en_dbg(IFDOWN, priv, "Close port called\n");
1764 mutex_lock(&mdev->state_lock);
1766 mlx4_en_stop_port(dev, 0);
1767 netif_carrier_off(dev);
1769 mutex_unlock(&mdev->state_lock);
1773 void mlx4_en_free_resources(struct mlx4_en_priv *priv)
1777 #ifdef CONFIG_RFS_ACCEL
1778 free_irq_cpu_rmap(priv->dev->rx_cpu_rmap);
1779 priv->dev->rx_cpu_rmap = NULL;
1782 for (i = 0; i < priv->tx_ring_num; i++) {
1783 if (priv->tx_ring[i].tx_info)
1784 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
1785 if (priv->tx_cq[i].buf)
1786 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
1789 for (i = 0; i < priv->rx_ring_num; i++) {
1790 if (priv->rx_ring[i].rx_info)
1791 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
1792 priv->prof->rx_ring_size, priv->stride);
1793 if (priv->rx_cq[i].buf)
1794 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
1797 if (priv->base_tx_qpn) {
1798 mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num);
1799 priv->base_tx_qpn = 0;
1803 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
1805 struct mlx4_en_port_profile *prof = priv->prof;
1809 err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn);
1811 en_err(priv, "failed reserving range for TX rings\n");
1815 /* Create tx Rings */
1816 for (i = 0; i < priv->tx_ring_num; i++) {
1817 if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
1818 prof->tx_ring_size, i, TX))
1821 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i,
1822 prof->tx_ring_size, TXBB_SIZE))
1826 /* Create rx Rings */
1827 for (i = 0; i < priv->rx_ring_num; i++) {
1828 if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
1829 prof->rx_ring_size, i, RX))
1832 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
1833 prof->rx_ring_size, priv->stride))
1837 #ifdef CONFIG_RFS_ACCEL
1838 if (priv->mdev->dev->caps.comp_pool) {
1839 priv->dev->rx_cpu_rmap = alloc_irq_cpu_rmap(priv->mdev->dev->caps.comp_pool);
1840 if (!priv->dev->rx_cpu_rmap)
1848 en_err(priv, "Failed to allocate NIC resources\n");
1853 void mlx4_en_destroy_netdev(struct net_device *dev)
1855 struct mlx4_en_priv *priv = netdev_priv(dev);
1856 struct mlx4_en_dev *mdev = priv->mdev;
1858 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
1860 /* Unregister device - this will close the port if it was up */
1861 if (priv->registered)
1862 unregister_netdev(dev);
1864 if (priv->allocated)
1865 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
1867 cancel_delayed_work(&priv->stats_task);
1868 /* flush any pending task for this netdev */
1869 flush_workqueue(mdev->workqueue);
1871 /* Detach the netdev so tasks would not attempt to access it */
1872 mutex_lock(&mdev->state_lock);
1873 mdev->pndev[priv->port] = NULL;
1874 mutex_unlock(&mdev->state_lock);
1876 mlx4_en_free_resources(priv);
1878 kfree(priv->tx_ring);
1884 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
1886 struct mlx4_en_priv *priv = netdev_priv(dev);
1887 struct mlx4_en_dev *mdev = priv->mdev;
1890 en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
1893 if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
1894 en_err(priv, "Bad MTU size:%d.\n", new_mtu);
1899 if (netif_running(dev)) {
1900 mutex_lock(&mdev->state_lock);
1901 if (!mdev->device_up) {
1902 /* NIC is probably restarting - let watchdog task reset
1904 en_dbg(DRV, priv, "Change MTU called with card down!?\n");
1906 mlx4_en_stop_port(dev, 1);
1907 err = mlx4_en_start_port(dev);
1909 en_err(priv, "Failed restarting port:%d\n",
1911 queue_work(mdev->workqueue, &priv->watchdog_task);
1914 mutex_unlock(&mdev->state_lock);
1919 static int mlx4_en_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
1921 struct mlx4_en_priv *priv = netdev_priv(dev);
1922 struct mlx4_en_dev *mdev = priv->mdev;
1923 struct hwtstamp_config config;
1925 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
1928 /* reserved for future extensions */
1932 /* device doesn't support time stamping */
1933 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
1936 /* TX HW timestamp */
1937 switch (config.tx_type) {
1938 case HWTSTAMP_TX_OFF:
1939 case HWTSTAMP_TX_ON:
1945 /* RX HW timestamp */
1946 switch (config.rx_filter) {
1947 case HWTSTAMP_FILTER_NONE:
1949 case HWTSTAMP_FILTER_ALL:
1950 case HWTSTAMP_FILTER_SOME:
1951 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
1952 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
1953 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
1954 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
1955 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
1956 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
1957 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
1958 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
1959 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
1960 case HWTSTAMP_FILTER_PTP_V2_EVENT:
1961 case HWTSTAMP_FILTER_PTP_V2_SYNC:
1962 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
1963 config.rx_filter = HWTSTAMP_FILTER_ALL;
1969 if (mlx4_en_timestamp_config(dev, config.tx_type, config.rx_filter)) {
1970 config.tx_type = HWTSTAMP_TX_OFF;
1971 config.rx_filter = HWTSTAMP_FILTER_NONE;
1974 return copy_to_user(ifr->ifr_data, &config,
1975 sizeof(config)) ? -EFAULT : 0;
1978 static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
1982 return mlx4_en_hwtstamp_ioctl(dev, ifr);
1988 static int mlx4_en_set_features(struct net_device *netdev,
1989 netdev_features_t features)
1991 struct mlx4_en_priv *priv = netdev_priv(netdev);
1993 if (features & NETIF_F_LOOPBACK)
1994 priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);
1997 cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK);
1999 mlx4_en_update_loopback_state(netdev, features);
2005 static const struct net_device_ops mlx4_netdev_ops = {
2006 .ndo_open = mlx4_en_open,
2007 .ndo_stop = mlx4_en_close,
2008 .ndo_start_xmit = mlx4_en_xmit,
2009 .ndo_select_queue = mlx4_en_select_queue,
2010 .ndo_get_stats = mlx4_en_get_stats,
2011 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2012 .ndo_set_mac_address = mlx4_en_set_mac,
2013 .ndo_validate_addr = eth_validate_addr,
2014 .ndo_change_mtu = mlx4_en_change_mtu,
2015 .ndo_do_ioctl = mlx4_en_ioctl,
2016 .ndo_tx_timeout = mlx4_en_tx_timeout,
2017 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2018 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2019 #ifdef CONFIG_NET_POLL_CONTROLLER
2020 .ndo_poll_controller = mlx4_en_netpoll,
2022 .ndo_set_features = mlx4_en_set_features,
2023 .ndo_setup_tc = mlx4_en_setup_tc,
2024 #ifdef CONFIG_RFS_ACCEL
2025 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2029 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
2030 struct mlx4_en_port_profile *prof)
2032 struct net_device *dev;
2033 struct mlx4_en_priv *priv;
2037 dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
2038 MAX_TX_RINGS, MAX_RX_RINGS);
2042 netif_set_real_num_tx_queues(dev, prof->tx_ring_num);
2043 netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
2045 SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
2046 dev->dev_id = port - 1;
2049 * Initialize driver private data
2052 priv = netdev_priv(dev);
2053 memset(priv, 0, sizeof(struct mlx4_en_priv));
2056 priv->ddev = &mdev->pdev->dev;
2059 priv->port_up = false;
2060 priv->flags = prof->flags;
2061 priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
2062 MLX4_WQE_CTRL_SOLICITED);
2063 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
2064 priv->tx_ring_num = prof->tx_ring_num;
2066 priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring) * MAX_TX_RINGS,
2068 if (!priv->tx_ring) {
2072 priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq) * MAX_TX_RINGS,
2078 priv->rx_ring_num = prof->rx_ring_num;
2079 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
2080 priv->mac_index = -1;
2081 priv->msg_enable = MLX4_EN_MSG_LEVEL;
2082 spin_lock_init(&priv->stats_lock);
2083 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
2084 INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
2085 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
2086 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
2087 #ifdef CONFIG_MLX4_EN_DCB
2088 if (!mlx4_is_slave(priv->mdev->dev)) {
2089 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
2090 dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
2092 en_info(priv, "enabling only PFC DCB ops\n");
2093 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
2098 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
2099 INIT_HLIST_HEAD(&priv->mac_hash[i]);
2101 /* Query for default mac and max mtu */
2102 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
2104 /* Set default MAC */
2105 dev->addr_len = ETH_ALEN;
2106 mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
2107 if (!is_valid_ether_addr(dev->dev_addr)) {
2108 en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
2109 priv->port, dev->dev_addr);
2114 memcpy(priv->prev_mac, dev->dev_addr, sizeof(priv->prev_mac));
2116 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
2117 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
2118 err = mlx4_en_alloc_resources(priv);
2122 #ifdef CONFIG_RFS_ACCEL
2123 INIT_LIST_HEAD(&priv->filters);
2124 spin_lock_init(&priv->filters_lock);
2127 /* Initialize time stamping config */
2128 priv->hwtstamp_config.flags = 0;
2129 priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
2130 priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
2132 /* Allocate page for receive rings */
2133 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
2134 MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
2136 en_err(priv, "Failed to allocate page for rx qps\n");
2139 priv->allocated = 1;
2142 * Initialize netdev entry points
2144 dev->netdev_ops = &mlx4_netdev_ops;
2145 dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
2146 netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
2147 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
2149 SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);
2152 * Set driver features
2154 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
2155 if (mdev->LSO_support)
2156 dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
2158 dev->vlan_features = dev->hw_features;
2160 dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
2161 dev->features = dev->hw_features | NETIF_F_HIGHDMA |
2162 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
2163 NETIF_F_HW_VLAN_CTAG_FILTER;
2164 dev->hw_features |= NETIF_F_LOOPBACK;
2166 if (mdev->dev->caps.steering_mode ==
2167 MLX4_STEERING_MODE_DEVICE_MANAGED)
2168 dev->hw_features |= NETIF_F_NTUPLE;
2170 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
2171 dev->priv_flags |= IFF_UNICAST_FLT;
2173 mdev->pndev[port] = dev;
2175 netif_carrier_off(dev);
2176 err = register_netdev(dev);
2178 en_err(priv, "Netdev registration failed for port %d\n", port);
2181 priv->registered = 1;
2183 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
2184 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
2186 mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
2188 /* Configure port */
2189 mlx4_en_calc_rx_buf(dev);
2190 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
2191 priv->rx_skb_size + ETH_FCS_LEN,
2192 prof->tx_pause, prof->tx_ppp,
2193 prof->rx_pause, prof->rx_ppp);
2195 en_err(priv, "Failed setting port general configurations "
2196 "for port %d, with error %d\n", priv->port, err);
2201 en_warn(priv, "Initializing port\n");
2202 err = mlx4_INIT_PORT(mdev->dev, priv->port);
2204 en_err(priv, "Failed Initializing port\n");
2207 mlx4_en_set_default_moderation(priv);
2208 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
2212 mlx4_en_destroy_netdev(dev);