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/bpf.h>
35 #include <linux/etherdevice.h>
36 #include <linux/tcp.h>
37 #include <linux/if_vlan.h>
38 #include <linux/delay.h>
39 #include <linux/slab.h>
40 #include <linux/hash.h>
42 #include <net/busy_poll.h>
43 #include <net/vxlan.h>
44 #include <net/devlink.h>
46 #include <linux/mlx4/driver.h>
47 #include <linux/mlx4/device.h>
48 #include <linux/mlx4/cmd.h>
49 #include <linux/mlx4/cq.h>
54 #define MLX4_EN_MAX_XDP_MTU ((int)(PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) - \
57 int mlx4_en_setup_tc(struct net_device *dev, u8 up)
59 struct mlx4_en_priv *priv = netdev_priv(dev);
61 unsigned int offset = 0;
63 if (up && up != MLX4_EN_NUM_UP)
66 netdev_set_num_tc(dev, up);
68 /* Partition Tx queues evenly amongst UP's */
69 for (i = 0; i < up; i++) {
70 netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
71 offset += priv->num_tx_rings_p_up;
74 #ifdef CONFIG_MLX4_EN_DCB
75 if (!mlx4_is_slave(priv->mdev->dev)) {
78 priv->flags |= MLX4_EN_FLAG_DCB_ENABLED;
80 priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED;
81 priv->cee_config.pfc_state = false;
84 #endif /* CONFIG_MLX4_EN_DCB */
89 static int __mlx4_en_setup_tc(struct net_device *dev, u32 handle, __be16 proto,
90 struct tc_to_netdev *tc)
92 if (tc->type != TC_SETUP_MQPRIO)
95 return mlx4_en_setup_tc(dev, tc->tc);
98 #ifdef CONFIG_RFS_ACCEL
100 struct mlx4_en_filter {
101 struct list_head next;
102 struct work_struct work;
111 struct mlx4_en_priv *priv;
112 u32 flow_id; /* RFS infrastructure id */
113 int id; /* mlx4_en driver id */
114 u64 reg_id; /* Flow steering API id */
115 u8 activated; /* Used to prevent expiry before filter
118 struct hlist_node filter_chain;
121 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
123 static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
127 return MLX4_NET_TRANS_RULE_ID_UDP;
129 return MLX4_NET_TRANS_RULE_ID_TCP;
131 return MLX4_NET_TRANS_RULE_NUM;
135 /* Must not acquire state_lock, as its corresponding work_sync
138 static void mlx4_en_filter_work(struct work_struct *work)
140 struct mlx4_en_filter *filter = container_of(work,
141 struct mlx4_en_filter,
143 struct mlx4_en_priv *priv = filter->priv;
144 struct mlx4_spec_list spec_tcp_udp = {
145 .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
148 .dst_port = filter->dst_port,
149 .dst_port_msk = (__force __be16)-1,
150 .src_port = filter->src_port,
151 .src_port_msk = (__force __be16)-1,
155 struct mlx4_spec_list spec_ip = {
156 .id = MLX4_NET_TRANS_RULE_ID_IPV4,
159 .dst_ip = filter->dst_ip,
160 .dst_ip_msk = (__force __be32)-1,
161 .src_ip = filter->src_ip,
162 .src_ip_msk = (__force __be32)-1,
166 struct mlx4_spec_list spec_eth = {
167 .id = MLX4_NET_TRANS_RULE_ID_ETH,
169 struct mlx4_net_trans_rule rule = {
170 .list = LIST_HEAD_INIT(rule.list),
171 .queue_mode = MLX4_NET_TRANS_Q_LIFO,
174 .promisc_mode = MLX4_FS_REGULAR,
176 .priority = MLX4_DOMAIN_RFS,
179 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
181 if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) {
182 en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
186 list_add_tail(&spec_eth.list, &rule.list);
187 list_add_tail(&spec_ip.list, &rule.list);
188 list_add_tail(&spec_tcp_udp.list, &rule.list);
190 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
191 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
192 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
194 filter->activated = 0;
196 if (filter->reg_id) {
197 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
198 if (rc && rc != -ENOENT)
199 en_err(priv, "Error detaching flow. rc = %d\n", rc);
202 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
204 en_err(priv, "Error attaching flow. err = %d\n", rc);
207 mlx4_en_filter_rfs_expire(priv);
209 filter->activated = 1;
212 static inline struct hlist_head *
213 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
214 __be16 src_port, __be16 dst_port)
219 l = (__force unsigned long)src_port |
220 ((__force unsigned long)dst_port << 2);
221 l ^= (__force unsigned long)(src_ip ^ dst_ip);
223 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
225 return &priv->filter_hash[bucket_idx];
228 static struct mlx4_en_filter *
229 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
230 __be32 dst_ip, u8 ip_proto, __be16 src_port,
231 __be16 dst_port, u32 flow_id)
233 struct mlx4_en_filter *filter = NULL;
235 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
240 filter->rxq_index = rxq_index;
241 INIT_WORK(&filter->work, mlx4_en_filter_work);
243 filter->src_ip = src_ip;
244 filter->dst_ip = dst_ip;
245 filter->ip_proto = ip_proto;
246 filter->src_port = src_port;
247 filter->dst_port = dst_port;
249 filter->flow_id = flow_id;
251 filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
253 list_add_tail(&filter->next, &priv->filters);
254 hlist_add_head(&filter->filter_chain,
255 filter_hash_bucket(priv, src_ip, dst_ip, src_port,
261 static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
263 struct mlx4_en_priv *priv = filter->priv;
266 list_del(&filter->next);
268 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
269 if (rc && rc != -ENOENT)
270 en_err(priv, "Error detaching flow. rc = %d\n", rc);
275 static inline struct mlx4_en_filter *
276 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
277 u8 ip_proto, __be16 src_port, __be16 dst_port)
279 struct mlx4_en_filter *filter;
280 struct mlx4_en_filter *ret = NULL;
282 hlist_for_each_entry(filter,
283 filter_hash_bucket(priv, src_ip, dst_ip,
286 if (filter->src_ip == src_ip &&
287 filter->dst_ip == dst_ip &&
288 filter->ip_proto == ip_proto &&
289 filter->src_port == src_port &&
290 filter->dst_port == dst_port) {
300 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
301 u16 rxq_index, u32 flow_id)
303 struct mlx4_en_priv *priv = netdev_priv(net_dev);
304 struct mlx4_en_filter *filter;
305 const struct iphdr *ip;
312 int nhoff = skb_network_offset(skb);
315 if (skb->protocol != htons(ETH_P_IP))
316 return -EPROTONOSUPPORT;
318 ip = (const struct iphdr *)(skb->data + nhoff);
319 if (ip_is_fragment(ip))
320 return -EPROTONOSUPPORT;
322 if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
323 return -EPROTONOSUPPORT;
324 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
326 ip_proto = ip->protocol;
332 spin_lock_bh(&priv->filters_lock);
333 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
336 if (filter->rxq_index == rxq_index)
339 filter->rxq_index = rxq_index;
341 filter = mlx4_en_filter_alloc(priv, rxq_index,
342 src_ip, dst_ip, ip_proto,
343 src_port, dst_port, flow_id);
350 queue_work(priv->mdev->workqueue, &filter->work);
355 spin_unlock_bh(&priv->filters_lock);
360 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
362 struct mlx4_en_filter *filter, *tmp;
365 spin_lock_bh(&priv->filters_lock);
366 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
367 list_move(&filter->next, &del_list);
368 hlist_del(&filter->filter_chain);
370 spin_unlock_bh(&priv->filters_lock);
372 list_for_each_entry_safe(filter, tmp, &del_list, next) {
373 cancel_work_sync(&filter->work);
374 mlx4_en_filter_free(filter);
378 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
380 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
384 spin_lock_bh(&priv->filters_lock);
385 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
386 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
389 if (filter->activated &&
390 !work_pending(&filter->work) &&
391 rps_may_expire_flow(priv->dev,
392 filter->rxq_index, filter->flow_id,
394 list_move(&filter->next, &del_list);
395 hlist_del(&filter->filter_chain);
397 last_filter = filter;
402 if (last_filter && (&last_filter->next != priv->filters.next))
403 list_move(&priv->filters, &last_filter->next);
405 spin_unlock_bh(&priv->filters_lock);
407 list_for_each_entry_safe(filter, tmp, &del_list, next)
408 mlx4_en_filter_free(filter);
412 static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
413 __be16 proto, u16 vid)
415 struct mlx4_en_priv *priv = netdev_priv(dev);
416 struct mlx4_en_dev *mdev = priv->mdev;
420 en_dbg(HW, priv, "adding VLAN:%d\n", vid);
422 set_bit(vid, priv->active_vlans);
424 /* Add VID to port VLAN filter */
425 mutex_lock(&mdev->state_lock);
426 if (mdev->device_up && priv->port_up) {
427 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
429 en_err(priv, "Failed configuring VLAN filter\n");
433 err = mlx4_register_vlan(mdev->dev, priv->port, vid, &idx);
435 en_dbg(HW, priv, "Failed adding vlan %d\n", vid);
438 mutex_unlock(&mdev->state_lock);
442 static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
443 __be16 proto, u16 vid)
445 struct mlx4_en_priv *priv = netdev_priv(dev);
446 struct mlx4_en_dev *mdev = priv->mdev;
449 en_dbg(HW, priv, "Killing VID:%d\n", vid);
451 clear_bit(vid, priv->active_vlans);
453 /* Remove VID from port VLAN filter */
454 mutex_lock(&mdev->state_lock);
455 mlx4_unregister_vlan(mdev->dev, priv->port, vid);
457 if (mdev->device_up && priv->port_up) {
458 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
460 en_err(priv, "Failed configuring VLAN filter\n");
462 mutex_unlock(&mdev->state_lock);
467 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
470 for (i = ETH_ALEN - 1; i >= 0; --i) {
471 dst_mac[i] = src_mac & 0xff;
474 memset(&dst_mac[ETH_ALEN], 0, 2);
478 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr,
479 int qpn, u64 *reg_id)
483 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
484 priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
485 return 0; /* do nothing */
487 err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
488 MLX4_DOMAIN_NIC, reg_id);
490 en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
493 en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id);
498 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
499 unsigned char *mac, int *qpn, u64 *reg_id)
501 struct mlx4_en_dev *mdev = priv->mdev;
502 struct mlx4_dev *dev = mdev->dev;
505 switch (dev->caps.steering_mode) {
506 case MLX4_STEERING_MODE_B0: {
511 memcpy(&gid[10], mac, ETH_ALEN);
514 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
517 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
518 struct mlx4_spec_list spec_eth = { {NULL} };
519 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
521 struct mlx4_net_trans_rule rule = {
522 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
525 .promisc_mode = MLX4_FS_REGULAR,
526 .priority = MLX4_DOMAIN_NIC,
529 rule.port = priv->port;
531 INIT_LIST_HEAD(&rule.list);
533 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
534 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
535 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
536 list_add_tail(&spec_eth.list, &rule.list);
538 err = mlx4_flow_attach(dev, &rule, reg_id);
545 en_warn(priv, "Failed Attaching Unicast\n");
550 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
551 unsigned char *mac, int qpn, u64 reg_id)
553 struct mlx4_en_dev *mdev = priv->mdev;
554 struct mlx4_dev *dev = mdev->dev;
556 switch (dev->caps.steering_mode) {
557 case MLX4_STEERING_MODE_B0: {
562 memcpy(&gid[10], mac, ETH_ALEN);
565 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
568 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
569 mlx4_flow_detach(dev, reg_id);
573 en_err(priv, "Invalid steering mode.\n");
577 static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
579 struct mlx4_en_dev *mdev = priv->mdev;
580 struct mlx4_dev *dev = mdev->dev;
583 int *qpn = &priv->base_qpn;
584 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
586 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
587 priv->dev->dev_addr);
588 index = mlx4_register_mac(dev, priv->port, mac);
591 en_err(priv, "Failed adding MAC: %pM\n",
592 priv->dev->dev_addr);
596 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
597 int base_qpn = mlx4_get_base_qpn(dev, priv->port);
598 *qpn = base_qpn + index;
602 err = mlx4_qp_reserve_range(dev, 1, 1, qpn, MLX4_RESERVE_A0_QP);
603 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
605 en_err(priv, "Failed to reserve qp for mac registration\n");
606 mlx4_unregister_mac(dev, priv->port, mac);
613 static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
615 struct mlx4_en_dev *mdev = priv->mdev;
616 struct mlx4_dev *dev = mdev->dev;
617 int qpn = priv->base_qpn;
619 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
620 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
621 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
622 priv->dev->dev_addr);
623 mlx4_unregister_mac(dev, priv->port, mac);
625 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
627 mlx4_qp_release_range(dev, qpn, 1);
628 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
632 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
633 unsigned char *new_mac, unsigned char *prev_mac)
635 struct mlx4_en_dev *mdev = priv->mdev;
636 struct mlx4_dev *dev = mdev->dev;
638 u64 new_mac_u64 = mlx4_mac_to_u64(new_mac);
640 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
641 struct hlist_head *bucket;
642 unsigned int mac_hash;
643 struct mlx4_mac_entry *entry;
644 struct hlist_node *tmp;
645 u64 prev_mac_u64 = mlx4_mac_to_u64(prev_mac);
647 bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
648 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
649 if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
650 mlx4_en_uc_steer_release(priv, entry->mac,
652 mlx4_unregister_mac(dev, priv->port,
654 hlist_del_rcu(&entry->hlist);
656 memcpy(entry->mac, new_mac, ETH_ALEN);
658 mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
659 hlist_add_head_rcu(&entry->hlist,
660 &priv->mac_hash[mac_hash]);
661 mlx4_register_mac(dev, priv->port, new_mac_u64);
662 err = mlx4_en_uc_steer_add(priv, new_mac,
667 if (priv->tunnel_reg_id) {
668 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
669 priv->tunnel_reg_id = 0;
671 err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn,
672 &priv->tunnel_reg_id);
679 return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
682 static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
683 unsigned char new_mac[ETH_ALEN + 2])
688 /* Remove old MAC and insert the new one */
689 err = mlx4_en_replace_mac(priv, priv->base_qpn,
690 new_mac, priv->current_mac);
692 en_err(priv, "Failed changing HW MAC address\n");
694 en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
697 memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
702 static int mlx4_en_set_mac(struct net_device *dev, void *addr)
704 struct mlx4_en_priv *priv = netdev_priv(dev);
705 struct mlx4_en_dev *mdev = priv->mdev;
706 struct sockaddr *saddr = addr;
707 unsigned char new_mac[ETH_ALEN + 2];
710 if (!is_valid_ether_addr(saddr->sa_data))
711 return -EADDRNOTAVAIL;
713 mutex_lock(&mdev->state_lock);
714 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
715 err = mlx4_en_do_set_mac(priv, new_mac);
717 memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
718 mutex_unlock(&mdev->state_lock);
723 static void mlx4_en_clear_list(struct net_device *dev)
725 struct mlx4_en_priv *priv = netdev_priv(dev);
726 struct mlx4_en_mc_list *tmp, *mc_to_del;
728 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
729 list_del(&mc_to_del->list);
734 static void mlx4_en_cache_mclist(struct net_device *dev)
736 struct mlx4_en_priv *priv = netdev_priv(dev);
737 struct netdev_hw_addr *ha;
738 struct mlx4_en_mc_list *tmp;
740 mlx4_en_clear_list(dev);
741 netdev_for_each_mc_addr(ha, dev) {
742 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
744 mlx4_en_clear_list(dev);
747 memcpy(tmp->addr, ha->addr, ETH_ALEN);
748 list_add_tail(&tmp->list, &priv->mc_list);
752 static void update_mclist_flags(struct mlx4_en_priv *priv,
753 struct list_head *dst,
754 struct list_head *src)
756 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
759 /* Find all the entries that should be removed from dst,
760 * These are the entries that are not found in src
762 list_for_each_entry(dst_tmp, dst, list) {
764 list_for_each_entry(src_tmp, src, list) {
765 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
771 dst_tmp->action = MCLIST_REM;
774 /* Add entries that exist in src but not in dst
775 * mark them as need to add
777 list_for_each_entry(src_tmp, src, list) {
779 list_for_each_entry(dst_tmp, dst, list) {
780 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
781 dst_tmp->action = MCLIST_NONE;
787 new_mc = kmemdup(src_tmp,
788 sizeof(struct mlx4_en_mc_list),
793 new_mc->action = MCLIST_ADD;
794 list_add_tail(&new_mc->list, dst);
799 static void mlx4_en_set_rx_mode(struct net_device *dev)
801 struct mlx4_en_priv *priv = netdev_priv(dev);
806 queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
809 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
810 struct mlx4_en_dev *mdev)
814 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
815 if (netif_msg_rx_status(priv))
816 en_warn(priv, "Entering promiscuous mode\n");
817 priv->flags |= MLX4_EN_FLAG_PROMISC;
819 /* Enable promiscouos mode */
820 switch (mdev->dev->caps.steering_mode) {
821 case MLX4_STEERING_MODE_DEVICE_MANAGED:
822 err = mlx4_flow_steer_promisc_add(mdev->dev,
825 MLX4_FS_ALL_DEFAULT);
827 en_err(priv, "Failed enabling promiscuous mode\n");
828 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
831 case MLX4_STEERING_MODE_B0:
832 err = mlx4_unicast_promisc_add(mdev->dev,
836 en_err(priv, "Failed enabling unicast promiscuous mode\n");
838 /* Add the default qp number as multicast
841 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
842 err = mlx4_multicast_promisc_add(mdev->dev,
846 en_err(priv, "Failed enabling multicast promiscuous mode\n");
847 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
851 case MLX4_STEERING_MODE_A0:
852 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
857 en_err(priv, "Failed enabling promiscuous mode\n");
861 /* Disable port multicast filter (unconditionally) */
862 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
863 0, MLX4_MCAST_DISABLE);
865 en_err(priv, "Failed disabling multicast filter\n");
869 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
870 struct mlx4_en_dev *mdev)
874 if (netif_msg_rx_status(priv))
875 en_warn(priv, "Leaving promiscuous mode\n");
876 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
878 /* Disable promiscouos mode */
879 switch (mdev->dev->caps.steering_mode) {
880 case MLX4_STEERING_MODE_DEVICE_MANAGED:
881 err = mlx4_flow_steer_promisc_remove(mdev->dev,
883 MLX4_FS_ALL_DEFAULT);
885 en_err(priv, "Failed disabling promiscuous mode\n");
886 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
889 case MLX4_STEERING_MODE_B0:
890 err = mlx4_unicast_promisc_remove(mdev->dev,
894 en_err(priv, "Failed disabling unicast promiscuous mode\n");
895 /* Disable Multicast promisc */
896 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
897 err = mlx4_multicast_promisc_remove(mdev->dev,
901 en_err(priv, "Failed disabling multicast promiscuous mode\n");
902 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
906 case MLX4_STEERING_MODE_A0:
907 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
911 en_err(priv, "Failed disabling promiscuous mode\n");
916 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
917 struct net_device *dev,
918 struct mlx4_en_dev *mdev)
920 struct mlx4_en_mc_list *mclist, *tmp;
922 u8 mc_list[16] = {0};
925 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
926 if (dev->flags & IFF_ALLMULTI) {
927 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
928 0, MLX4_MCAST_DISABLE);
930 en_err(priv, "Failed disabling multicast filter\n");
932 /* Add the default qp number as multicast promisc */
933 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
934 switch (mdev->dev->caps.steering_mode) {
935 case MLX4_STEERING_MODE_DEVICE_MANAGED:
936 err = mlx4_flow_steer_promisc_add(mdev->dev,
942 case MLX4_STEERING_MODE_B0:
943 err = mlx4_multicast_promisc_add(mdev->dev,
948 case MLX4_STEERING_MODE_A0:
952 en_err(priv, "Failed entering multicast promisc mode\n");
953 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
956 /* Disable Multicast promisc */
957 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
958 switch (mdev->dev->caps.steering_mode) {
959 case MLX4_STEERING_MODE_DEVICE_MANAGED:
960 err = mlx4_flow_steer_promisc_remove(mdev->dev,
965 case MLX4_STEERING_MODE_B0:
966 err = mlx4_multicast_promisc_remove(mdev->dev,
971 case MLX4_STEERING_MODE_A0:
975 en_err(priv, "Failed disabling multicast promiscuous mode\n");
976 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
979 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
980 0, MLX4_MCAST_DISABLE);
982 en_err(priv, "Failed disabling multicast filter\n");
984 /* Flush mcast filter and init it with broadcast address */
985 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
986 1, MLX4_MCAST_CONFIG);
988 /* Update multicast list - we cache all addresses so they won't
989 * change while HW is updated holding the command semaphor */
990 netif_addr_lock_bh(dev);
991 mlx4_en_cache_mclist(dev);
992 netif_addr_unlock_bh(dev);
993 list_for_each_entry(mclist, &priv->mc_list, list) {
994 mcast_addr = mlx4_mac_to_u64(mclist->addr);
995 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
996 mcast_addr, 0, MLX4_MCAST_CONFIG);
998 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
999 0, MLX4_MCAST_ENABLE);
1001 en_err(priv, "Failed enabling multicast filter\n");
1003 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
1004 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1005 if (mclist->action == MCLIST_REM) {
1006 /* detach this address and delete from list */
1007 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1008 mc_list[5] = priv->port;
1009 err = mlx4_multicast_detach(mdev->dev,
1010 &priv->rss_map.indir_qp,
1015 en_err(priv, "Fail to detach multicast address\n");
1017 if (mclist->tunnel_reg_id) {
1018 err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id);
1020 en_err(priv, "Failed to detach multicast address\n");
1023 /* remove from list */
1024 list_del(&mclist->list);
1026 } else if (mclist->action == MCLIST_ADD) {
1027 /* attach the address */
1028 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1029 /* needed for B0 steering support */
1030 mc_list[5] = priv->port;
1031 err = mlx4_multicast_attach(mdev->dev,
1032 &priv->rss_map.indir_qp,
1038 en_err(priv, "Fail to attach multicast address\n");
1040 err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn,
1041 &mclist->tunnel_reg_id);
1043 en_err(priv, "Failed to attach multicast address\n");
1049 static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
1050 struct net_device *dev,
1051 struct mlx4_en_dev *mdev)
1053 struct netdev_hw_addr *ha;
1054 struct mlx4_mac_entry *entry;
1055 struct hlist_node *tmp;
1059 struct hlist_head *bucket;
1064 /* Note that we do not need to protect our mac_hash traversal with rcu,
1065 * since all modification code is protected by mdev->state_lock
1068 /* find what to remove */
1069 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1070 bucket = &priv->mac_hash[i];
1071 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1073 netdev_for_each_uc_addr(ha, dev) {
1074 if (ether_addr_equal_64bits(entry->mac,
1081 /* MAC address of the port is not in uc list */
1082 if (ether_addr_equal_64bits(entry->mac,
1087 mac = mlx4_mac_to_u64(entry->mac);
1088 mlx4_en_uc_steer_release(priv, entry->mac,
1091 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1093 hlist_del_rcu(&entry->hlist);
1094 kfree_rcu(entry, rcu);
1095 en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
1096 entry->mac, priv->port);
1102 /* if we didn't remove anything, there is no use in trying to add
1103 * again once we are in a forced promisc mode state
1105 if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
1108 prev_flags = priv->flags;
1109 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
1111 /* find what to add */
1112 netdev_for_each_uc_addr(ha, dev) {
1114 bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
1115 hlist_for_each_entry(entry, bucket, hlist) {
1116 if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
1123 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1125 en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
1126 ha->addr, priv->port);
1127 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1130 mac = mlx4_mac_to_u64(ha->addr);
1131 memcpy(entry->mac, ha->addr, ETH_ALEN);
1132 err = mlx4_register_mac(mdev->dev, priv->port, mac);
1134 en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
1135 ha->addr, priv->port, err);
1137 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1140 err = mlx4_en_uc_steer_add(priv, ha->addr,
1144 en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
1145 ha->addr, priv->port, err);
1146 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1148 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1151 unsigned int mac_hash;
1152 en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
1153 ha->addr, priv->port);
1154 mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
1155 bucket = &priv->mac_hash[mac_hash];
1156 hlist_add_head_rcu(&entry->hlist, bucket);
1161 if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1162 en_warn(priv, "Forcing promiscuous mode on port:%d\n",
1164 } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1165 en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
1170 static void mlx4_en_do_set_rx_mode(struct work_struct *work)
1172 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1174 struct mlx4_en_dev *mdev = priv->mdev;
1175 struct net_device *dev = priv->dev;
1177 mutex_lock(&mdev->state_lock);
1178 if (!mdev->device_up) {
1179 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
1182 if (!priv->port_up) {
1183 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
1187 if (!netif_carrier_ok(dev)) {
1188 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
1189 if (priv->port_state.link_state) {
1190 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
1191 netif_carrier_on(dev);
1192 en_dbg(LINK, priv, "Link Up\n");
1197 if (dev->priv_flags & IFF_UNICAST_FLT)
1198 mlx4_en_do_uc_filter(priv, dev, mdev);
1200 /* Promsicuous mode: disable all filters */
1201 if ((dev->flags & IFF_PROMISC) ||
1202 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
1203 mlx4_en_set_promisc_mode(priv, mdev);
1207 /* Not in promiscuous mode */
1208 if (priv->flags & MLX4_EN_FLAG_PROMISC)
1209 mlx4_en_clear_promisc_mode(priv, mdev);
1211 mlx4_en_do_multicast(priv, dev, mdev);
1213 mutex_unlock(&mdev->state_lock);
1216 #ifdef CONFIG_NET_POLL_CONTROLLER
1217 static void mlx4_en_netpoll(struct net_device *dev)
1219 struct mlx4_en_priv *priv = netdev_priv(dev);
1220 struct mlx4_en_cq *cq;
1223 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
1224 cq = priv->tx_cq[TX][i];
1225 napi_schedule(&cq->napi);
1230 static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv)
1234 int *qpn = &priv->base_qpn;
1235 struct mlx4_mac_entry *entry;
1237 err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
1241 err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn,
1242 &priv->tunnel_reg_id);
1246 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1252 memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
1253 memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
1254 entry->reg_id = reg_id;
1255 hlist_add_head_rcu(&entry->hlist,
1256 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
1261 if (priv->tunnel_reg_id)
1262 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1265 mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
1269 static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv *priv)
1273 int qpn = priv->base_qpn;
1274 struct hlist_head *bucket;
1275 struct hlist_node *tmp;
1276 struct mlx4_mac_entry *entry;
1278 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1279 bucket = &priv->mac_hash[i];
1280 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1281 mac = mlx4_mac_to_u64(entry->mac);
1282 en_dbg(DRV, priv, "Registering MAC:%pM for deleting\n",
1284 mlx4_en_uc_steer_release(priv, entry->mac,
1285 qpn, entry->reg_id);
1287 mlx4_unregister_mac(priv->mdev->dev, priv->port, mac);
1288 hlist_del_rcu(&entry->hlist);
1289 kfree_rcu(entry, rcu);
1293 if (priv->tunnel_reg_id) {
1294 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1295 priv->tunnel_reg_id = 0;
1299 static void mlx4_en_tx_timeout(struct net_device *dev)
1301 struct mlx4_en_priv *priv = netdev_priv(dev);
1302 struct mlx4_en_dev *mdev = priv->mdev;
1305 if (netif_msg_timer(priv))
1306 en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
1308 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
1309 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][i];
1311 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
1313 en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1314 i, tx_ring->qpn, tx_ring->sp_cqn,
1315 tx_ring->cons, tx_ring->prod);
1318 priv->port_stats.tx_timeout++;
1319 en_dbg(DRV, priv, "Scheduling watchdog\n");
1320 queue_work(mdev->workqueue, &priv->watchdog_task);
1324 static struct rtnl_link_stats64 *
1325 mlx4_en_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1327 struct mlx4_en_priv *priv = netdev_priv(dev);
1329 spin_lock_bh(&priv->stats_lock);
1330 mlx4_en_fold_software_stats(dev);
1331 netdev_stats_to_stats64(stats, &dev->stats);
1332 spin_unlock_bh(&priv->stats_lock);
1337 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
1339 struct mlx4_en_cq *cq;
1342 /* If we haven't received a specific coalescing setting
1343 * (module param), we set the moderation parameters as follows:
1344 * - moder_cnt is set to the number of mtu sized packets to
1345 * satisfy our coalescing target.
1346 * - moder_time is set to a fixed value.
1348 priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
1349 priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
1350 priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
1351 priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
1352 en_dbg(INTR, priv, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1353 priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
1355 /* Setup cq moderation params */
1356 for (i = 0; i < priv->rx_ring_num; i++) {
1357 cq = priv->rx_cq[i];
1358 cq->moder_cnt = priv->rx_frames;
1359 cq->moder_time = priv->rx_usecs;
1360 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1361 priv->last_moder_packets[i] = 0;
1362 priv->last_moder_bytes[i] = 0;
1365 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
1366 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1367 cq = priv->tx_cq[t][i];
1368 cq->moder_cnt = priv->tx_frames;
1369 cq->moder_time = priv->tx_usecs;
1373 /* Reset auto-moderation params */
1374 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
1375 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
1376 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
1377 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
1378 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
1379 priv->adaptive_rx_coal = 1;
1380 priv->last_moder_jiffies = 0;
1381 priv->last_moder_tx_packets = 0;
1384 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
1386 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
1387 struct mlx4_en_cq *cq;
1388 unsigned long packets;
1390 unsigned long avg_pkt_size;
1391 unsigned long rx_packets;
1392 unsigned long rx_bytes;
1393 unsigned long rx_pkt_diff;
1397 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
1400 for (ring = 0; ring < priv->rx_ring_num; ring++) {
1401 rx_packets = READ_ONCE(priv->rx_ring[ring]->packets);
1402 rx_bytes = READ_ONCE(priv->rx_ring[ring]->bytes);
1404 rx_pkt_diff = ((unsigned long) (rx_packets -
1405 priv->last_moder_packets[ring]));
1406 packets = rx_pkt_diff;
1407 rate = packets * HZ / period;
1408 avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
1409 priv->last_moder_bytes[ring])) / packets : 0;
1411 /* Apply auto-moderation only when packet rate
1412 * exceeds a rate that it matters */
1413 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
1414 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
1415 if (rate < priv->pkt_rate_low)
1416 moder_time = priv->rx_usecs_low;
1417 else if (rate > priv->pkt_rate_high)
1418 moder_time = priv->rx_usecs_high;
1420 moder_time = (rate - priv->pkt_rate_low) *
1421 (priv->rx_usecs_high - priv->rx_usecs_low) /
1422 (priv->pkt_rate_high - priv->pkt_rate_low) +
1425 moder_time = priv->rx_usecs_low;
1428 if (moder_time != priv->last_moder_time[ring]) {
1429 priv->last_moder_time[ring] = moder_time;
1430 cq = priv->rx_cq[ring];
1431 cq->moder_time = moder_time;
1432 cq->moder_cnt = priv->rx_frames;
1433 err = mlx4_en_set_cq_moder(priv, cq);
1435 en_err(priv, "Failed modifying moderation for cq:%d\n",
1438 priv->last_moder_packets[ring] = rx_packets;
1439 priv->last_moder_bytes[ring] = rx_bytes;
1442 priv->last_moder_jiffies = jiffies;
1445 static void mlx4_en_do_get_stats(struct work_struct *work)
1447 struct delayed_work *delay = to_delayed_work(work);
1448 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1450 struct mlx4_en_dev *mdev = priv->mdev;
1453 mutex_lock(&mdev->state_lock);
1454 if (mdev->device_up) {
1455 if (priv->port_up) {
1456 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
1458 en_dbg(HW, priv, "Could not update stats\n");
1460 mlx4_en_auto_moderation(priv);
1463 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
1465 if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
1466 mlx4_en_do_set_mac(priv, priv->current_mac);
1467 mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
1469 mutex_unlock(&mdev->state_lock);
1472 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1475 static void mlx4_en_service_task(struct work_struct *work)
1477 struct delayed_work *delay = to_delayed_work(work);
1478 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1480 struct mlx4_en_dev *mdev = priv->mdev;
1482 mutex_lock(&mdev->state_lock);
1483 if (mdev->device_up) {
1484 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
1485 mlx4_en_ptp_overflow_check(mdev);
1487 mlx4_en_recover_from_oom(priv);
1488 queue_delayed_work(mdev->workqueue, &priv->service_task,
1489 SERVICE_TASK_DELAY);
1491 mutex_unlock(&mdev->state_lock);
1494 static void mlx4_en_linkstate(struct work_struct *work)
1496 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1498 struct mlx4_en_dev *mdev = priv->mdev;
1499 int linkstate = priv->link_state;
1501 mutex_lock(&mdev->state_lock);
1502 /* If observable port state changed set carrier state and
1503 * report to system log */
1504 if (priv->last_link_state != linkstate) {
1505 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
1506 en_info(priv, "Link Down\n");
1507 netif_carrier_off(priv->dev);
1509 en_info(priv, "Link Up\n");
1510 netif_carrier_on(priv->dev);
1513 priv->last_link_state = linkstate;
1514 mutex_unlock(&mdev->state_lock);
1517 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1519 struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx];
1520 int numa_node = priv->mdev->dev->numa_node;
1522 if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL))
1525 cpumask_set_cpu(cpumask_local_spread(ring_idx, numa_node),
1526 ring->affinity_mask);
1530 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1532 free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask);
1535 static void mlx4_en_init_recycle_ring(struct mlx4_en_priv *priv,
1538 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX_XDP][tx_ring_idx];
1539 int rr_index = tx_ring_idx;
1541 tx_ring->free_tx_desc = mlx4_en_recycle_tx_desc;
1542 tx_ring->recycle_ring = priv->rx_ring[rr_index];
1543 en_dbg(DRV, priv, "Set tx_ring[%d][%d]->recycle_ring = rx_ring[%d]\n",
1544 TX_XDP, tx_ring_idx, rr_index);
1547 int mlx4_en_start_port(struct net_device *dev)
1549 struct mlx4_en_priv *priv = netdev_priv(dev);
1550 struct mlx4_en_dev *mdev = priv->mdev;
1551 struct mlx4_en_cq *cq;
1552 struct mlx4_en_tx_ring *tx_ring;
1557 u8 mc_list[16] = {0};
1559 if (priv->port_up) {
1560 en_dbg(DRV, priv, "start port called while port already up\n");
1564 INIT_LIST_HEAD(&priv->mc_list);
1565 INIT_LIST_HEAD(&priv->curr_list);
1566 INIT_LIST_HEAD(&priv->ethtool_list);
1567 memset(&priv->ethtool_rules[0], 0,
1568 sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
1570 /* Calculate Rx buf size */
1571 dev->mtu = min(dev->mtu, priv->max_mtu);
1572 mlx4_en_calc_rx_buf(dev);
1573 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
1575 /* Configure rx cq's and rings */
1576 err = mlx4_en_activate_rx_rings(priv);
1578 en_err(priv, "Failed to activate RX rings\n");
1581 for (i = 0; i < priv->rx_ring_num; i++) {
1582 cq = priv->rx_cq[i];
1584 err = mlx4_en_init_affinity_hint(priv, i);
1586 en_err(priv, "Failed preparing IRQ affinity hint\n");
1590 err = mlx4_en_activate_cq(priv, cq, i);
1592 en_err(priv, "Failed activating Rx CQ\n");
1593 mlx4_en_free_affinity_hint(priv, i);
1597 for (j = 0; j < cq->size; j++) {
1598 struct mlx4_cqe *cqe = NULL;
1600 cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) +
1602 cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK;
1605 err = mlx4_en_set_cq_moder(priv, cq);
1607 en_err(priv, "Failed setting cq moderation parameters\n");
1608 mlx4_en_deactivate_cq(priv, cq);
1609 mlx4_en_free_affinity_hint(priv, i);
1612 mlx4_en_arm_cq(priv, cq);
1613 priv->rx_ring[i]->cqn = cq->mcq.cqn;
1618 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
1619 err = mlx4_en_get_qp(priv);
1621 en_err(priv, "Failed getting eth qp\n");
1624 mdev->mac_removed[priv->port] = 0;
1626 priv->counter_index =
1627 mlx4_get_default_counter_index(mdev->dev, priv->port);
1629 err = mlx4_en_config_rss_steer(priv);
1631 en_err(priv, "Failed configuring rss steering\n");
1635 err = mlx4_en_create_drop_qp(priv);
1639 /* Configure tx cq's and rings */
1640 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
1641 u8 num_tx_rings_p_up = t == TX ?
1642 priv->num_tx_rings_p_up : priv->tx_ring_num[t];
1644 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1646 cq = priv->tx_cq[t][i];
1647 err = mlx4_en_activate_cq(priv, cq, i);
1649 en_err(priv, "Failed allocating Tx CQ\n");
1652 err = mlx4_en_set_cq_moder(priv, cq);
1654 en_err(priv, "Failed setting cq moderation parameters\n");
1655 mlx4_en_deactivate_cq(priv, cq);
1659 "Resetting index of collapsed CQ:%d to -1\n", i);
1660 cq->buf->wqe_index = cpu_to_be16(0xffff);
1662 /* Configure ring */
1663 tx_ring = priv->tx_ring[t][i];
1664 err = mlx4_en_activate_tx_ring(priv, tx_ring,
1666 i / num_tx_rings_p_up);
1668 en_err(priv, "Failed allocating Tx ring\n");
1669 mlx4_en_deactivate_cq(priv, cq);
1673 tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
1674 tx_ring->recycle_ring = NULL;
1676 mlx4_en_init_recycle_ring(priv, i);
1679 /* Arm CQ for TX completions */
1680 mlx4_en_arm_cq(priv, cq);
1682 /* Set initial ownership of all Tx TXBBs to SW (1) */
1683 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
1684 *((u32 *)(tx_ring->buf + j)) = 0xffffffff;
1688 /* Configure port */
1689 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1690 priv->rx_skb_size + ETH_FCS_LEN,
1691 priv->prof->tx_pause,
1693 priv->prof->rx_pause,
1694 priv->prof->rx_ppp);
1696 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
1700 /* Set default qp number */
1701 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
1703 en_err(priv, "Failed setting default qp numbers\n");
1707 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
1708 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
1710 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
1717 en_dbg(HW, priv, "Initializing port\n");
1718 err = mlx4_INIT_PORT(mdev->dev, priv->port);
1720 en_err(priv, "Failed Initializing port\n");
1724 /* Set Unicast and VXLAN steering rules */
1725 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0 &&
1726 mlx4_en_set_rss_steer_rules(priv))
1727 mlx4_warn(mdev, "Failed setting steering rules\n");
1729 /* Attach rx QP to bradcast address */
1730 eth_broadcast_addr(&mc_list[10]);
1731 mc_list[5] = priv->port; /* needed for B0 steering support */
1732 if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1733 priv->port, 0, MLX4_PROT_ETH,
1734 &priv->broadcast_id))
1735 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
1737 /* Must redo promiscuous mode setup. */
1738 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
1740 /* Schedule multicast task to populate multicast list */
1741 queue_work(mdev->workqueue, &priv->rx_mode_task);
1743 if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
1744 udp_tunnel_get_rx_info(dev);
1746 priv->port_up = true;
1748 /* Process all completions if exist to prevent
1749 * the queues freezing if they are full
1751 for (i = 0; i < priv->rx_ring_num; i++) {
1753 napi_schedule(&priv->rx_cq[i]->napi);
1757 netif_tx_start_all_queues(dev);
1758 netif_device_attach(dev);
1763 if (t == MLX4_EN_NUM_TX_TYPES) {
1765 i = priv->tx_ring_num[t];
1769 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]);
1770 mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]);
1774 i = priv->tx_ring_num[t];
1776 mlx4_en_destroy_drop_qp(priv);
1778 mlx4_en_release_rss_steer(priv);
1780 mlx4_en_put_qp(priv);
1782 while (rx_index--) {
1783 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
1784 mlx4_en_free_affinity_hint(priv, rx_index);
1786 for (i = 0; i < priv->rx_ring_num; i++)
1787 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1789 return err; /* need to close devices */
1793 void mlx4_en_stop_port(struct net_device *dev, int detach)
1795 struct mlx4_en_priv *priv = netdev_priv(dev);
1796 struct mlx4_en_dev *mdev = priv->mdev;
1797 struct mlx4_en_mc_list *mclist, *tmp;
1798 struct ethtool_flow_id *flow, *tmp_flow;
1800 u8 mc_list[16] = {0};
1802 if (!priv->port_up) {
1803 en_dbg(DRV, priv, "stop port called while port already down\n");
1808 mlx4_CLOSE_PORT(mdev->dev, priv->port);
1810 /* Synchronize with tx routine */
1811 netif_tx_lock_bh(dev);
1813 netif_device_detach(dev);
1814 netif_tx_stop_all_queues(dev);
1815 netif_tx_unlock_bh(dev);
1817 netif_tx_disable(dev);
1819 spin_lock_bh(&priv->stats_lock);
1820 mlx4_en_fold_software_stats(dev);
1821 /* Set port as not active */
1822 priv->port_up = false;
1823 spin_unlock_bh(&priv->stats_lock);
1825 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
1827 /* Promsicuous mode */
1828 if (mdev->dev->caps.steering_mode ==
1829 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1830 priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
1831 MLX4_EN_FLAG_MC_PROMISC);
1832 mlx4_flow_steer_promisc_remove(mdev->dev,
1834 MLX4_FS_ALL_DEFAULT);
1835 mlx4_flow_steer_promisc_remove(mdev->dev,
1837 MLX4_FS_MC_DEFAULT);
1838 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
1839 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
1841 /* Disable promiscouos mode */
1842 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
1845 /* Disable Multicast promisc */
1846 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1847 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
1849 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1853 /* Detach All multicasts */
1854 eth_broadcast_addr(&mc_list[10]);
1855 mc_list[5] = priv->port; /* needed for B0 steering support */
1856 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1857 MLX4_PROT_ETH, priv->broadcast_id);
1858 list_for_each_entry(mclist, &priv->curr_list, list) {
1859 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1860 mc_list[5] = priv->port;
1861 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
1862 mc_list, MLX4_PROT_ETH, mclist->reg_id);
1863 if (mclist->tunnel_reg_id)
1864 mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id);
1866 mlx4_en_clear_list(dev);
1867 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1868 list_del(&mclist->list);
1872 /* Flush multicast filter */
1873 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
1875 /* Remove flow steering rules for the port*/
1876 if (mdev->dev->caps.steering_mode ==
1877 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1879 list_for_each_entry_safe(flow, tmp_flow,
1880 &priv->ethtool_list, list) {
1881 mlx4_flow_detach(mdev->dev, flow->id);
1882 list_del(&flow->list);
1886 mlx4_en_destroy_drop_qp(priv);
1889 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
1890 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1891 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]);
1892 mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]);
1897 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
1898 for (i = 0; i < priv->tx_ring_num[t]; i++)
1899 mlx4_en_free_tx_buf(dev, priv->tx_ring[t][i]);
1901 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
1902 mlx4_en_delete_rss_steer_rules(priv);
1905 mlx4_en_release_rss_steer(priv);
1907 /* Unregister Mac address for the port */
1908 mlx4_en_put_qp(priv);
1909 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
1910 mdev->mac_removed[priv->port] = 1;
1913 for (i = 0; i < priv->rx_ring_num; i++) {
1914 struct mlx4_en_cq *cq = priv->rx_cq[i];
1916 napi_synchronize(&cq->napi);
1917 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1918 mlx4_en_deactivate_cq(priv, cq);
1920 mlx4_en_free_affinity_hint(priv, i);
1924 static void mlx4_en_restart(struct work_struct *work)
1926 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1928 struct mlx4_en_dev *mdev = priv->mdev;
1929 struct net_device *dev = priv->dev;
1931 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
1934 mutex_lock(&mdev->state_lock);
1935 if (priv->port_up) {
1936 mlx4_en_stop_port(dev, 1);
1937 if (mlx4_en_start_port(dev))
1938 en_err(priv, "Failed restarting port %d\n", priv->port);
1940 mutex_unlock(&mdev->state_lock);
1944 static void mlx4_en_clear_stats(struct net_device *dev)
1946 struct mlx4_en_priv *priv = netdev_priv(dev);
1947 struct mlx4_en_dev *mdev = priv->mdev;
1948 struct mlx4_en_tx_ring **tx_ring;
1951 if (!mlx4_is_slave(mdev->dev))
1952 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
1953 en_dbg(HW, priv, "Failed dumping statistics\n");
1955 memset(&priv->pstats, 0, sizeof(priv->pstats));
1956 memset(&priv->pkstats, 0, sizeof(priv->pkstats));
1957 memset(&priv->port_stats, 0, sizeof(priv->port_stats));
1958 memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats));
1959 memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats));
1960 memset(&priv->rx_priority_flowstats, 0,
1961 sizeof(priv->rx_priority_flowstats));
1962 memset(&priv->tx_priority_flowstats, 0,
1963 sizeof(priv->tx_priority_flowstats));
1964 memset(&priv->pf_stats, 0, sizeof(priv->pf_stats));
1966 tx_ring = priv->tx_ring[TX];
1967 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
1968 tx_ring[i]->bytes = 0;
1969 tx_ring[i]->packets = 0;
1970 tx_ring[i]->tx_csum = 0;
1971 tx_ring[i]->tx_dropped = 0;
1972 tx_ring[i]->queue_stopped = 0;
1973 tx_ring[i]->wake_queue = 0;
1974 tx_ring[i]->tso_packets = 0;
1975 tx_ring[i]->xmit_more = 0;
1977 for (i = 0; i < priv->rx_ring_num; i++) {
1978 priv->rx_ring[i]->bytes = 0;
1979 priv->rx_ring[i]->packets = 0;
1980 priv->rx_ring[i]->csum_ok = 0;
1981 priv->rx_ring[i]->csum_none = 0;
1982 priv->rx_ring[i]->csum_complete = 0;
1986 static int mlx4_en_open(struct net_device *dev)
1988 struct mlx4_en_priv *priv = netdev_priv(dev);
1989 struct mlx4_en_dev *mdev = priv->mdev;
1992 mutex_lock(&mdev->state_lock);
1994 if (!mdev->device_up) {
1995 en_err(priv, "Cannot open - device down/disabled\n");
2000 /* Reset HW statistics and SW counters */
2001 mlx4_en_clear_stats(dev);
2003 err = mlx4_en_start_port(dev);
2005 en_err(priv, "Failed starting port:%d\n", priv->port);
2008 mutex_unlock(&mdev->state_lock);
2013 static int mlx4_en_close(struct net_device *dev)
2015 struct mlx4_en_priv *priv = netdev_priv(dev);
2016 struct mlx4_en_dev *mdev = priv->mdev;
2018 en_dbg(IFDOWN, priv, "Close port called\n");
2020 mutex_lock(&mdev->state_lock);
2022 mlx4_en_stop_port(dev, 0);
2023 netif_carrier_off(dev);
2025 mutex_unlock(&mdev->state_lock);
2029 static void mlx4_en_free_resources(struct mlx4_en_priv *priv)
2033 #ifdef CONFIG_RFS_ACCEL
2034 priv->dev->rx_cpu_rmap = NULL;
2037 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2038 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2039 if (priv->tx_ring[t] && priv->tx_ring[t][i])
2040 mlx4_en_destroy_tx_ring(priv,
2041 &priv->tx_ring[t][i]);
2042 if (priv->tx_cq[t] && priv->tx_cq[t][i])
2043 mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]);
2047 for (i = 0; i < priv->rx_ring_num; i++) {
2048 if (priv->rx_ring[i])
2049 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2050 priv->prof->rx_ring_size, priv->stride);
2052 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2057 static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
2059 struct mlx4_en_port_profile *prof = priv->prof;
2063 /* Create tx Rings */
2064 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2065 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2066 node = cpu_to_node(i % num_online_cpus());
2067 if (mlx4_en_create_cq(priv, &priv->tx_cq[t][i],
2068 prof->tx_ring_size, i, t, node))
2071 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[t][i],
2073 TXBB_SIZE, node, i))
2078 /* Create rx Rings */
2079 for (i = 0; i < priv->rx_ring_num; i++) {
2080 node = cpu_to_node(i % num_online_cpus());
2081 if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
2082 prof->rx_ring_size, i, RX, node))
2085 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
2086 prof->rx_ring_size, priv->stride,
2091 #ifdef CONFIG_RFS_ACCEL
2092 priv->dev->rx_cpu_rmap = mlx4_get_cpu_rmap(priv->mdev->dev, priv->port);
2098 en_err(priv, "Failed to allocate NIC resources\n");
2099 for (i = 0; i < priv->rx_ring_num; i++) {
2100 if (priv->rx_ring[i])
2101 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2105 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2107 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2108 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2109 if (priv->tx_ring[t][i])
2110 mlx4_en_destroy_tx_ring(priv,
2111 &priv->tx_ring[t][i]);
2112 if (priv->tx_cq[t][i])
2113 mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]);
2120 static int mlx4_en_copy_priv(struct mlx4_en_priv *dst,
2121 struct mlx4_en_priv *src,
2122 struct mlx4_en_port_profile *prof)
2126 memcpy(&dst->hwtstamp_config, &prof->hwtstamp_config,
2127 sizeof(dst->hwtstamp_config));
2128 dst->num_tx_rings_p_up = src->mdev->profile.num_tx_rings_p_up;
2129 dst->rx_ring_num = prof->rx_ring_num;
2130 dst->flags = prof->flags;
2131 dst->mdev = src->mdev;
2132 dst->port = src->port;
2133 dst->dev = src->dev;
2135 dst->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
2136 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
2138 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2139 dst->tx_ring_num[t] = prof->tx_ring_num[t];
2140 if (!dst->tx_ring_num[t])
2143 dst->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
2144 MAX_TX_RINGS, GFP_KERNEL);
2145 if (!dst->tx_ring[t])
2148 dst->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
2149 MAX_TX_RINGS, GFP_KERNEL);
2150 if (!dst->tx_cq[t]) {
2151 kfree(dst->tx_ring[t]);
2160 kfree(dst->tx_ring[t]);
2161 kfree(dst->tx_cq[t]);
2166 static void mlx4_en_update_priv(struct mlx4_en_priv *dst,
2167 struct mlx4_en_priv *src)
2170 memcpy(dst->rx_ring, src->rx_ring,
2171 sizeof(struct mlx4_en_rx_ring *) * src->rx_ring_num);
2172 memcpy(dst->rx_cq, src->rx_cq,
2173 sizeof(struct mlx4_en_cq *) * src->rx_ring_num);
2174 memcpy(&dst->hwtstamp_config, &src->hwtstamp_config,
2175 sizeof(dst->hwtstamp_config));
2176 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2177 dst->tx_ring_num[t] = src->tx_ring_num[t];
2178 dst->tx_ring[t] = src->tx_ring[t];
2179 dst->tx_cq[t] = src->tx_cq[t];
2181 dst->rx_ring_num = src->rx_ring_num;
2182 memcpy(dst->prof, src->prof, sizeof(struct mlx4_en_port_profile));
2185 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv,
2186 struct mlx4_en_priv *tmp,
2187 struct mlx4_en_port_profile *prof)
2191 mlx4_en_copy_priv(tmp, priv, prof);
2193 if (mlx4_en_alloc_resources(tmp)) {
2195 "%s: Resource allocation failed, using previous configuration\n",
2197 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2198 kfree(tmp->tx_ring[t]);
2199 kfree(tmp->tx_cq[t]);
2206 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv,
2207 struct mlx4_en_priv *tmp)
2209 mlx4_en_free_resources(priv);
2210 mlx4_en_update_priv(priv, tmp);
2213 void mlx4_en_destroy_netdev(struct net_device *dev)
2215 struct mlx4_en_priv *priv = netdev_priv(dev);
2216 struct mlx4_en_dev *mdev = priv->mdev;
2219 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
2221 /* Unregister device - this will close the port if it was up */
2222 if (priv->registered) {
2223 devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev,
2225 unregister_netdev(dev);
2228 if (priv->allocated)
2229 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
2231 cancel_delayed_work(&priv->stats_task);
2232 cancel_delayed_work(&priv->service_task);
2233 /* flush any pending task for this netdev */
2234 flush_workqueue(mdev->workqueue);
2236 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
2237 mlx4_en_remove_timestamp(mdev);
2239 /* Detach the netdev so tasks would not attempt to access it */
2240 mutex_lock(&mdev->state_lock);
2241 mdev->pndev[priv->port] = NULL;
2242 mdev->upper[priv->port] = NULL;
2244 #ifdef CONFIG_RFS_ACCEL
2245 mlx4_en_cleanup_filters(priv);
2248 mlx4_en_free_resources(priv);
2249 mutex_unlock(&mdev->state_lock);
2251 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2252 kfree(priv->tx_ring[t]);
2253 kfree(priv->tx_cq[t]);
2259 static bool mlx4_en_check_xdp_mtu(struct net_device *dev, int mtu)
2261 struct mlx4_en_priv *priv = netdev_priv(dev);
2263 if (mtu > MLX4_EN_MAX_XDP_MTU) {
2264 en_err(priv, "mtu:%d > max:%d when XDP prog is attached\n",
2265 mtu, MLX4_EN_MAX_XDP_MTU);
2272 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
2274 struct mlx4_en_priv *priv = netdev_priv(dev);
2275 struct mlx4_en_dev *mdev = priv->mdev;
2278 en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
2281 if (priv->tx_ring_num[TX_XDP] &&
2282 !mlx4_en_check_xdp_mtu(dev, new_mtu))
2287 if (netif_running(dev)) {
2288 mutex_lock(&mdev->state_lock);
2289 if (!mdev->device_up) {
2290 /* NIC is probably restarting - let watchdog task reset
2292 en_dbg(DRV, priv, "Change MTU called with card down!?\n");
2294 mlx4_en_stop_port(dev, 1);
2295 err = mlx4_en_start_port(dev);
2297 en_err(priv, "Failed restarting port:%d\n",
2299 queue_work(mdev->workqueue, &priv->watchdog_task);
2302 mutex_unlock(&mdev->state_lock);
2307 static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
2309 struct mlx4_en_priv *priv = netdev_priv(dev);
2310 struct mlx4_en_dev *mdev = priv->mdev;
2311 struct hwtstamp_config config;
2313 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
2316 /* reserved for future extensions */
2320 /* device doesn't support time stamping */
2321 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
2324 /* TX HW timestamp */
2325 switch (config.tx_type) {
2326 case HWTSTAMP_TX_OFF:
2327 case HWTSTAMP_TX_ON:
2333 /* RX HW timestamp */
2334 switch (config.rx_filter) {
2335 case HWTSTAMP_FILTER_NONE:
2337 case HWTSTAMP_FILTER_ALL:
2338 case HWTSTAMP_FILTER_SOME:
2339 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
2340 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
2341 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
2342 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
2343 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
2344 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
2345 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
2346 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
2347 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
2348 case HWTSTAMP_FILTER_PTP_V2_EVENT:
2349 case HWTSTAMP_FILTER_PTP_V2_SYNC:
2350 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
2351 config.rx_filter = HWTSTAMP_FILTER_ALL;
2357 if (mlx4_en_reset_config(dev, config, dev->features)) {
2358 config.tx_type = HWTSTAMP_TX_OFF;
2359 config.rx_filter = HWTSTAMP_FILTER_NONE;
2362 return copy_to_user(ifr->ifr_data, &config,
2363 sizeof(config)) ? -EFAULT : 0;
2366 static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
2368 struct mlx4_en_priv *priv = netdev_priv(dev);
2370 return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config,
2371 sizeof(priv->hwtstamp_config)) ? -EFAULT : 0;
2374 static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2378 return mlx4_en_hwtstamp_set(dev, ifr);
2380 return mlx4_en_hwtstamp_get(dev, ifr);
2386 static netdev_features_t mlx4_en_fix_features(struct net_device *netdev,
2387 netdev_features_t features)
2389 struct mlx4_en_priv *en_priv = netdev_priv(netdev);
2390 struct mlx4_en_dev *mdev = en_priv->mdev;
2392 /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
2393 * enable/disable make sure S-TAG flag is always in same state as
2396 if (features & NETIF_F_HW_VLAN_CTAG_RX &&
2397 !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
2398 features |= NETIF_F_HW_VLAN_STAG_RX;
2400 features &= ~NETIF_F_HW_VLAN_STAG_RX;
2405 static int mlx4_en_set_features(struct net_device *netdev,
2406 netdev_features_t features)
2408 struct mlx4_en_priv *priv = netdev_priv(netdev);
2412 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) {
2413 en_info(priv, "Turn %s RX-FCS\n",
2414 (features & NETIF_F_RXFCS) ? "ON" : "OFF");
2418 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) {
2419 u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0;
2421 en_info(priv, "Turn %s RX-ALL\n",
2422 ignore_fcs_value ? "ON" : "OFF");
2423 ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev,
2424 priv->port, ignore_fcs_value);
2429 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
2430 en_info(priv, "Turn %s RX vlan strip offload\n",
2431 (features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF");
2435 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX))
2436 en_info(priv, "Turn %s TX vlan strip offload\n",
2437 (features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
2439 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX))
2440 en_info(priv, "Turn %s TX S-VLAN strip offload\n",
2441 (features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF");
2443 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) {
2444 en_info(priv, "Turn %s loopback\n",
2445 (features & NETIF_F_LOOPBACK) ? "ON" : "OFF");
2446 mlx4_en_update_loopback_state(netdev, features);
2450 ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config,
2459 static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
2461 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2462 struct mlx4_en_dev *mdev = en_priv->mdev;
2463 u64 mac_u64 = mlx4_mac_to_u64(mac);
2465 if (is_multicast_ether_addr(mac))
2468 return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
2471 static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
2474 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2475 struct mlx4_en_dev *mdev = en_priv->mdev;
2477 return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos,
2481 static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
2484 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2485 struct mlx4_en_dev *mdev = en_priv->mdev;
2487 return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate,
2491 static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
2493 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2494 struct mlx4_en_dev *mdev = en_priv->mdev;
2496 return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting);
2499 static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf)
2501 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2502 struct mlx4_en_dev *mdev = en_priv->mdev;
2504 return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
2507 static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
2509 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2510 struct mlx4_en_dev *mdev = en_priv->mdev;
2512 return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
2515 static int mlx4_en_get_vf_stats(struct net_device *dev, int vf,
2516 struct ifla_vf_stats *vf_stats)
2518 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2519 struct mlx4_en_dev *mdev = en_priv->mdev;
2521 return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats);
2524 #define PORT_ID_BYTE_LEN 8
2525 static int mlx4_en_get_phys_port_id(struct net_device *dev,
2526 struct netdev_phys_item_id *ppid)
2528 struct mlx4_en_priv *priv = netdev_priv(dev);
2529 struct mlx4_dev *mdev = priv->mdev->dev;
2531 u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
2536 ppid->id_len = sizeof(phys_port_id);
2537 for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
2538 ppid->id[i] = phys_port_id & 0xff;
2544 static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
2547 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2550 ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
2554 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2555 VXLAN_STEER_BY_OUTER_MAC, 1);
2558 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2563 priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2565 NETIF_F_TSO | NETIF_F_TSO6 |
2566 NETIF_F_GSO_UDP_TUNNEL |
2567 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2568 NETIF_F_GSO_PARTIAL;
2571 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
2574 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2576 /* unset offloads */
2577 priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2579 NETIF_F_TSO | NETIF_F_TSO6 |
2580 NETIF_F_GSO_UDP_TUNNEL |
2581 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2582 NETIF_F_GSO_PARTIAL);
2584 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2585 VXLAN_STEER_BY_OUTER_MAC, 0);
2587 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2589 priv->vxlan_port = 0;
2592 static void mlx4_en_add_vxlan_port(struct net_device *dev,
2593 struct udp_tunnel_info *ti)
2595 struct mlx4_en_priv *priv = netdev_priv(dev);
2596 __be16 port = ti->port;
2597 __be16 current_port;
2599 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2602 if (ti->sa_family != AF_INET)
2605 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2608 current_port = priv->vxlan_port;
2609 if (current_port && current_port != port) {
2610 en_warn(priv, "vxlan port %d configured, can't add port %d\n",
2611 ntohs(current_port), ntohs(port));
2615 priv->vxlan_port = port;
2616 queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
2619 static void mlx4_en_del_vxlan_port(struct net_device *dev,
2620 struct udp_tunnel_info *ti)
2622 struct mlx4_en_priv *priv = netdev_priv(dev);
2623 __be16 port = ti->port;
2624 __be16 current_port;
2626 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2629 if (ti->sa_family != AF_INET)
2632 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2635 current_port = priv->vxlan_port;
2636 if (current_port != port) {
2637 en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
2641 queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
2644 static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
2645 struct net_device *dev,
2646 netdev_features_t features)
2648 features = vlan_features_check(skb, features);
2649 features = vxlan_features_check(skb, features);
2651 /* The ConnectX-3 doesn't support outer IPv6 checksums but it does
2652 * support inner IPv6 checksums and segmentation so we need to
2653 * strip that feature if this is an IPv6 encapsulated frame.
2655 if (skb->encapsulation &&
2656 (skb->ip_summed == CHECKSUM_PARTIAL)) {
2657 struct mlx4_en_priv *priv = netdev_priv(dev);
2659 if (!priv->vxlan_port ||
2660 (ip_hdr(skb)->version != 4) ||
2661 (udp_hdr(skb)->dest != priv->vxlan_port))
2662 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2668 static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate)
2670 struct mlx4_en_priv *priv = netdev_priv(dev);
2671 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][queue_index];
2672 struct mlx4_update_qp_params params;
2675 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT))
2678 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2679 if (maxrate >> 12) {
2680 params.rate_unit = MLX4_QP_RATE_LIMIT_GBS;
2681 params.rate_val = maxrate / 1000;
2682 } else if (maxrate) {
2683 params.rate_unit = MLX4_QP_RATE_LIMIT_MBS;
2684 params.rate_val = maxrate;
2685 } else { /* zero serves to revoke the QP rate-limitation */
2686 params.rate_unit = 0;
2687 params.rate_val = 0;
2690 err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT,
2695 static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog)
2697 struct mlx4_en_priv *priv = netdev_priv(dev);
2698 struct mlx4_en_dev *mdev = priv->mdev;
2699 struct mlx4_en_port_profile new_prof;
2700 struct bpf_prog *old_prog;
2701 struct mlx4_en_priv *tmp;
2708 xdp_ring_num = prog ? priv->rx_ring_num : 0;
2710 /* No need to reconfigure buffers when simply swapping the
2711 * program for a new one.
2713 if (priv->tx_ring_num[TX_XDP] == xdp_ring_num) {
2715 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2717 return PTR_ERR(prog);
2719 mutex_lock(&mdev->state_lock);
2720 for (i = 0; i < priv->rx_ring_num; i++) {
2721 old_prog = rcu_dereference_protected(
2722 priv->rx_ring[i]->xdp_prog,
2723 lockdep_is_held(&mdev->state_lock));
2724 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2726 bpf_prog_put(old_prog);
2728 mutex_unlock(&mdev->state_lock);
2732 if (!mlx4_en_check_xdp_mtu(dev, dev->mtu))
2735 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
2740 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2742 err = PTR_ERR(prog);
2747 mutex_lock(&mdev->state_lock);
2748 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
2749 new_prof.tx_ring_num[TX_XDP] = xdp_ring_num;
2751 if (priv->tx_ring_num[TX] + xdp_ring_num > MAX_TX_RINGS) {
2753 new_prof.tx_ring_num[TX] =
2754 MAX_TX_RINGS - ALIGN(xdp_ring_num, MLX4_EN_NUM_UP);
2755 en_warn(priv, "Reducing the number of TX rings, to not exceed the max total rings number.\n");
2758 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
2761 bpf_prog_sub(prog, priv->rx_ring_num - 1);
2765 if (priv->port_up) {
2767 mlx4_en_stop_port(dev, 1);
2770 mlx4_en_safe_replace_resources(priv, tmp);
2772 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
2774 for (i = 0; i < priv->rx_ring_num; i++) {
2775 old_prog = rcu_dereference_protected(
2776 priv->rx_ring[i]->xdp_prog,
2777 lockdep_is_held(&mdev->state_lock));
2778 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2780 bpf_prog_put(old_prog);
2784 err = mlx4_en_start_port(dev);
2786 en_err(priv, "Failed starting port %d for XDP change\n",
2788 queue_work(mdev->workqueue, &priv->watchdog_task);
2793 mutex_unlock(&mdev->state_lock);
2799 static bool mlx4_xdp_attached(struct net_device *dev)
2801 struct mlx4_en_priv *priv = netdev_priv(dev);
2803 return !!priv->tx_ring_num[TX_XDP];
2806 static int mlx4_xdp(struct net_device *dev, struct netdev_xdp *xdp)
2808 switch (xdp->command) {
2809 case XDP_SETUP_PROG:
2810 return mlx4_xdp_set(dev, xdp->prog);
2811 case XDP_QUERY_PROG:
2812 xdp->prog_attached = mlx4_xdp_attached(dev);
2819 static const struct net_device_ops mlx4_netdev_ops = {
2820 .ndo_open = mlx4_en_open,
2821 .ndo_stop = mlx4_en_close,
2822 .ndo_start_xmit = mlx4_en_xmit,
2823 .ndo_select_queue = mlx4_en_select_queue,
2824 .ndo_get_stats64 = mlx4_en_get_stats64,
2825 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2826 .ndo_set_mac_address = mlx4_en_set_mac,
2827 .ndo_validate_addr = eth_validate_addr,
2828 .ndo_change_mtu = mlx4_en_change_mtu,
2829 .ndo_do_ioctl = mlx4_en_ioctl,
2830 .ndo_tx_timeout = mlx4_en_tx_timeout,
2831 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2832 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2833 #ifdef CONFIG_NET_POLL_CONTROLLER
2834 .ndo_poll_controller = mlx4_en_netpoll,
2836 .ndo_set_features = mlx4_en_set_features,
2837 .ndo_fix_features = mlx4_en_fix_features,
2838 .ndo_setup_tc = __mlx4_en_setup_tc,
2839 #ifdef CONFIG_RFS_ACCEL
2840 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2842 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2843 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2844 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2845 .ndo_features_check = mlx4_en_features_check,
2846 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2847 .ndo_xdp = mlx4_xdp,
2850 static const struct net_device_ops mlx4_netdev_ops_master = {
2851 .ndo_open = mlx4_en_open,
2852 .ndo_stop = mlx4_en_close,
2853 .ndo_start_xmit = mlx4_en_xmit,
2854 .ndo_select_queue = mlx4_en_select_queue,
2855 .ndo_get_stats64 = mlx4_en_get_stats64,
2856 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2857 .ndo_set_mac_address = mlx4_en_set_mac,
2858 .ndo_validate_addr = eth_validate_addr,
2859 .ndo_change_mtu = mlx4_en_change_mtu,
2860 .ndo_tx_timeout = mlx4_en_tx_timeout,
2861 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2862 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2863 .ndo_set_vf_mac = mlx4_en_set_vf_mac,
2864 .ndo_set_vf_vlan = mlx4_en_set_vf_vlan,
2865 .ndo_set_vf_rate = mlx4_en_set_vf_rate,
2866 .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk,
2867 .ndo_set_vf_link_state = mlx4_en_set_vf_link_state,
2868 .ndo_get_vf_stats = mlx4_en_get_vf_stats,
2869 .ndo_get_vf_config = mlx4_en_get_vf_config,
2870 #ifdef CONFIG_NET_POLL_CONTROLLER
2871 .ndo_poll_controller = mlx4_en_netpoll,
2873 .ndo_set_features = mlx4_en_set_features,
2874 .ndo_fix_features = mlx4_en_fix_features,
2875 .ndo_setup_tc = __mlx4_en_setup_tc,
2876 #ifdef CONFIG_RFS_ACCEL
2877 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2879 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2880 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2881 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2882 .ndo_features_check = mlx4_en_features_check,
2883 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2884 .ndo_xdp = mlx4_xdp,
2887 struct mlx4_en_bond {
2888 struct work_struct work;
2889 struct mlx4_en_priv *priv;
2891 struct mlx4_port_map port_map;
2894 static void mlx4_en_bond_work(struct work_struct *work)
2896 struct mlx4_en_bond *bond = container_of(work,
2897 struct mlx4_en_bond,
2900 struct mlx4_dev *dev = bond->priv->mdev->dev;
2902 if (bond->is_bonded) {
2903 if (!mlx4_is_bonded(dev)) {
2904 err = mlx4_bond(dev);
2906 en_err(bond->priv, "Fail to bond device\n");
2909 err = mlx4_port_map_set(dev, &bond->port_map);
2911 en_err(bond->priv, "Fail to set port map [%d][%d]: %d\n",
2912 bond->port_map.port1,
2913 bond->port_map.port2,
2916 } else if (mlx4_is_bonded(dev)) {
2917 err = mlx4_unbond(dev);
2919 en_err(bond->priv, "Fail to unbond device\n");
2921 dev_put(bond->priv->dev);
2925 static int mlx4_en_queue_bond_work(struct mlx4_en_priv *priv, int is_bonded,
2926 u8 v2p_p1, u8 v2p_p2)
2928 struct mlx4_en_bond *bond = NULL;
2930 bond = kzalloc(sizeof(*bond), GFP_ATOMIC);
2934 INIT_WORK(&bond->work, mlx4_en_bond_work);
2936 bond->is_bonded = is_bonded;
2937 bond->port_map.port1 = v2p_p1;
2938 bond->port_map.port2 = v2p_p2;
2939 dev_hold(priv->dev);
2940 queue_work(priv->mdev->workqueue, &bond->work);
2944 int mlx4_en_netdev_event(struct notifier_block *this,
2945 unsigned long event, void *ptr)
2947 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
2949 struct mlx4_en_dev *mdev;
2950 struct mlx4_dev *dev;
2951 int i, num_eth_ports = 0;
2952 bool do_bond = true;
2953 struct mlx4_en_priv *priv;
2957 if (!net_eq(dev_net(ndev), &init_net))
2960 mdev = container_of(this, struct mlx4_en_dev, nb);
2963 /* Go into this mode only when two network devices set on two ports
2964 * of the same mlx4 device are slaves of the same bonding master
2966 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
2968 if (!port && (mdev->pndev[i] == ndev))
2970 mdev->upper[i] = mdev->pndev[i] ?
2971 netdev_master_upper_dev_get(mdev->pndev[i]) : NULL;
2972 /* condition not met: network device is a slave */
2973 if (!mdev->upper[i])
2975 if (num_eth_ports < 2)
2977 /* condition not met: same master */
2978 if (mdev->upper[i] != mdev->upper[i-1])
2981 /* condition not met: 2 salves */
2982 do_bond = (num_eth_ports == 2) ? do_bond : false;
2984 /* handle only events that come with enough info */
2985 if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port)
2988 priv = netdev_priv(ndev);
2990 struct netdev_notifier_bonding_info *notifier_info = ptr;
2991 struct netdev_bonding_info *bonding_info =
2992 ¬ifier_info->bonding_info;
2994 /* required mode 1, 2 or 4 */
2995 if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) &&
2996 (bonding_info->master.bond_mode != BOND_MODE_XOR) &&
2997 (bonding_info->master.bond_mode != BOND_MODE_8023AD))
3000 /* require exactly 2 slaves */
3001 if (bonding_info->master.num_slaves != 2)
3006 if (bonding_info->master.bond_mode ==
3007 BOND_MODE_ACTIVEBACKUP) {
3008 /* in active-backup mode virtual ports are
3009 * mapped to the physical port of the active
3011 if (bonding_info->slave.state ==
3012 BOND_STATE_BACKUP) {
3020 } else { /* BOND_STATE_ACTIVE */
3029 } else { /* Active-Active */
3030 /* in active-active mode a virtual port is
3031 * mapped to the native physical port if and only
3032 * if the physical port is up */
3033 __s8 link = bonding_info->slave.link;
3039 if ((link == BOND_LINK_UP) ||
3040 (link == BOND_LINK_FAIL)) {
3045 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
3055 mlx4_en_queue_bond_work(priv, do_bond,
3056 v2p_port1, v2p_port2);
3061 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
3062 struct mlx4_en_stats_bitmap *stats_bitmap,
3063 u8 rx_ppp, u8 rx_pause,
3064 u8 tx_ppp, u8 tx_pause)
3066 int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS;
3068 if (!mlx4_is_slave(dev) &&
3069 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) {
3070 mutex_lock(&stats_bitmap->mutex);
3071 bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS);
3074 bitmap_set(stats_bitmap->bitmap, last_i,
3075 NUM_FLOW_PRIORITY_STATS_RX);
3076 last_i += NUM_FLOW_PRIORITY_STATS_RX;
3078 if (rx_pause && !(rx_ppp))
3079 bitmap_set(stats_bitmap->bitmap, last_i,
3081 last_i += NUM_FLOW_STATS_RX;
3084 bitmap_set(stats_bitmap->bitmap, last_i,
3085 NUM_FLOW_PRIORITY_STATS_TX);
3086 last_i += NUM_FLOW_PRIORITY_STATS_TX;
3088 if (tx_pause && !(tx_ppp))
3089 bitmap_set(stats_bitmap->bitmap, last_i,
3091 last_i += NUM_FLOW_STATS_TX;
3093 mutex_unlock(&stats_bitmap->mutex);
3097 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
3098 struct mlx4_en_stats_bitmap *stats_bitmap,
3099 u8 rx_ppp, u8 rx_pause,
3100 u8 tx_ppp, u8 tx_pause)
3104 mutex_init(&stats_bitmap->mutex);
3105 bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS);
3107 if (mlx4_is_slave(dev)) {
3108 bitmap_set(stats_bitmap->bitmap, last_i +
3109 MLX4_FIND_NETDEV_STAT(rx_packets), 1);
3110 bitmap_set(stats_bitmap->bitmap, last_i +
3111 MLX4_FIND_NETDEV_STAT(tx_packets), 1);
3112 bitmap_set(stats_bitmap->bitmap, last_i +
3113 MLX4_FIND_NETDEV_STAT(rx_bytes), 1);
3114 bitmap_set(stats_bitmap->bitmap, last_i +
3115 MLX4_FIND_NETDEV_STAT(tx_bytes), 1);
3116 bitmap_set(stats_bitmap->bitmap, last_i +
3117 MLX4_FIND_NETDEV_STAT(rx_dropped), 1);
3118 bitmap_set(stats_bitmap->bitmap, last_i +
3119 MLX4_FIND_NETDEV_STAT(tx_dropped), 1);
3121 bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS);
3123 last_i += NUM_MAIN_STATS;
3125 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS);
3126 last_i += NUM_PORT_STATS;
3128 if (mlx4_is_master(dev))
3129 bitmap_set(stats_bitmap->bitmap, last_i,
3131 last_i += NUM_PF_STATS;
3133 mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap,
3136 last_i += NUM_FLOW_STATS;
3138 if (!mlx4_is_slave(dev))
3139 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS);
3140 last_i += NUM_PKT_STATS;
3142 bitmap_set(stats_bitmap->bitmap, last_i, NUM_XDP_STATS);
3143 last_i += NUM_XDP_STATS;
3146 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
3147 struct mlx4_en_port_profile *prof)
3149 struct net_device *dev;
3150 struct mlx4_en_priv *priv;
3154 dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
3155 MAX_TX_RINGS, MAX_RX_RINGS);
3159 netif_set_real_num_tx_queues(dev, prof->tx_ring_num[TX]);
3160 netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
3162 SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev);
3163 dev->dev_port = port - 1;
3166 * Initialize driver private data
3169 priv = netdev_priv(dev);
3170 memset(priv, 0, sizeof(struct mlx4_en_priv));
3171 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
3172 spin_lock_init(&priv->stats_lock);
3173 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
3174 INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
3175 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
3176 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
3177 INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
3178 INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
3179 INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
3180 #ifdef CONFIG_RFS_ACCEL
3181 INIT_LIST_HEAD(&priv->filters);
3182 spin_lock_init(&priv->filters_lock);
3187 priv->ddev = &mdev->pdev->dev;
3190 priv->port_up = false;
3191 priv->flags = prof->flags;
3192 priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME;
3193 priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
3194 MLX4_WQE_CTRL_SOLICITED);
3195 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
3196 priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK;
3197 netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key));
3199 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
3200 priv->tx_ring_num[t] = prof->tx_ring_num[t];
3201 if (!priv->tx_ring_num[t])
3204 priv->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
3205 MAX_TX_RINGS, GFP_KERNEL);
3206 if (!priv->tx_ring[t]) {
3210 priv->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
3211 MAX_TX_RINGS, GFP_KERNEL);
3212 if (!priv->tx_cq[t]) {
3213 kfree(priv->tx_ring[t]);
3218 priv->rx_ring_num = prof->rx_ring_num;
3219 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
3220 priv->cqe_size = mdev->dev->caps.cqe_size;
3221 priv->mac_index = -1;
3222 priv->msg_enable = MLX4_EN_MSG_LEVEL;
3223 #ifdef CONFIG_MLX4_EN_DCB
3224 if (!mlx4_is_slave(priv->mdev->dev)) {
3225 priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST |
3226 DCB_CAP_DCBX_VER_IEEE;
3227 priv->flags |= MLX4_EN_DCB_ENABLED;
3228 priv->cee_config.pfc_state = false;
3230 for (i = 0; i < MLX4_EN_NUM_UP; i++)
3231 priv->cee_config.dcb_pfc[i] = pfc_disabled;
3233 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
3234 dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
3236 en_info(priv, "enabling only PFC DCB ops\n");
3237 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
3242 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
3243 INIT_HLIST_HEAD(&priv->mac_hash[i]);
3245 /* Query for default mac and max mtu */
3246 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
3248 if (mdev->dev->caps.rx_checksum_flags_port[priv->port] &
3249 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP)
3250 priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP;
3252 /* Set default MAC */
3253 dev->addr_len = ETH_ALEN;
3254 mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
3255 if (!is_valid_ether_addr(dev->dev_addr)) {
3256 en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
3257 priv->port, dev->dev_addr);
3260 } else if (mlx4_is_slave(priv->mdev->dev) &&
3261 (priv->mdev->dev->port_random_macs & 1 << priv->port)) {
3262 /* Random MAC was assigned in mlx4_slave_cap
3263 * in mlx4_core module
3265 dev->addr_assign_type |= NET_ADDR_RANDOM;
3266 en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr);
3269 memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
3271 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
3272 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
3273 err = mlx4_en_alloc_resources(priv);
3277 /* Initialize time stamping config */
3278 priv->hwtstamp_config.flags = 0;
3279 priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
3280 priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
3282 /* Allocate page for receive rings */
3283 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
3286 en_err(priv, "Failed to allocate page for rx qps\n");
3289 priv->allocated = 1;
3292 * Initialize netdev entry points
3294 if (mlx4_is_master(priv->mdev->dev))
3295 dev->netdev_ops = &mlx4_netdev_ops_master;
3297 dev->netdev_ops = &mlx4_netdev_ops;
3298 dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
3299 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
3300 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
3302 dev->ethtool_ops = &mlx4_en_ethtool_ops;
3305 * Set driver features
3307 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3308 if (mdev->LSO_support)
3309 dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
3311 dev->vlan_features = dev->hw_features;
3313 dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
3314 dev->features = dev->hw_features | NETIF_F_HIGHDMA |
3315 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
3316 NETIF_F_HW_VLAN_CTAG_FILTER;
3317 dev->hw_features |= NETIF_F_LOOPBACK |
3318 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
3320 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
3321 dev->features |= NETIF_F_HW_VLAN_STAG_RX |
3322 NETIF_F_HW_VLAN_STAG_FILTER;
3323 dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX;
3326 if (mlx4_is_slave(mdev->dev)) {
3327 bool vlan_offload_disabled;
3330 err = get_phv_bit(mdev->dev, port, &phv);
3332 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3333 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
3335 err = mlx4_get_is_vlan_offload_disabled(mdev->dev, port,
3336 &vlan_offload_disabled);
3337 if (!err && vlan_offload_disabled) {
3338 dev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3339 NETIF_F_HW_VLAN_CTAG_RX |
3340 NETIF_F_HW_VLAN_STAG_TX |
3341 NETIF_F_HW_VLAN_STAG_RX);
3342 dev->features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3343 NETIF_F_HW_VLAN_CTAG_RX |
3344 NETIF_F_HW_VLAN_STAG_TX |
3345 NETIF_F_HW_VLAN_STAG_RX);
3348 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
3349 !(mdev->dev->caps.flags2 &
3350 MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
3351 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3354 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
3355 dev->hw_features |= NETIF_F_RXFCS;
3357 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)
3358 dev->hw_features |= NETIF_F_RXALL;
3360 if (mdev->dev->caps.steering_mode ==
3361 MLX4_STEERING_MODE_DEVICE_MANAGED &&
3362 mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC)
3363 dev->hw_features |= NETIF_F_NTUPLE;
3365 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
3366 dev->priv_flags |= IFF_UNICAST_FLT;
3368 /* Setting a default hash function value */
3369 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) {
3370 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3371 } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) {
3372 priv->rss_hash_fn = ETH_RSS_HASH_XOR;
3375 "No RSS hash capabilities exposed, using Toeplitz\n");
3376 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3379 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3380 dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3381 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3382 NETIF_F_GSO_PARTIAL;
3383 dev->features |= NETIF_F_GSO_UDP_TUNNEL |
3384 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3385 NETIF_F_GSO_PARTIAL;
3386 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
3389 /* MTU range: 46 - hw-specific max */
3390 dev->min_mtu = MLX4_EN_MIN_MTU;
3391 dev->max_mtu = priv->max_mtu;
3393 mdev->pndev[port] = dev;
3394 mdev->upper[port] = NULL;
3396 netif_carrier_off(dev);
3397 mlx4_en_set_default_moderation(priv);
3399 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num[TX]);
3400 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
3402 mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
3404 /* Configure port */
3405 mlx4_en_calc_rx_buf(dev);
3406 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
3407 priv->rx_skb_size + ETH_FCS_LEN,
3408 prof->tx_pause, prof->tx_ppp,
3409 prof->rx_pause, prof->rx_ppp);
3411 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
3416 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3417 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
3419 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
3426 en_warn(priv, "Initializing port\n");
3427 err = mlx4_INIT_PORT(mdev->dev, priv->port);
3429 en_err(priv, "Failed Initializing port\n");
3432 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
3434 /* Initialize time stamp mechanism */
3435 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
3436 mlx4_en_init_timestamp(mdev);
3438 queue_delayed_work(mdev->workqueue, &priv->service_task,
3439 SERVICE_TASK_DELAY);
3441 mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap,
3442 mdev->profile.prof[priv->port].rx_ppp,
3443 mdev->profile.prof[priv->port].rx_pause,
3444 mdev->profile.prof[priv->port].tx_ppp,
3445 mdev->profile.prof[priv->port].tx_pause);
3447 err = register_netdev(dev);
3449 en_err(priv, "Netdev registration failed for port %d\n", port);
3453 priv->registered = 1;
3454 devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port),
3461 kfree(priv->tx_ring[t]);
3462 kfree(priv->tx_cq[t]);
3465 mlx4_en_destroy_netdev(dev);
3469 int mlx4_en_reset_config(struct net_device *dev,
3470 struct hwtstamp_config ts_config,
3471 netdev_features_t features)
3473 struct mlx4_en_priv *priv = netdev_priv(dev);
3474 struct mlx4_en_dev *mdev = priv->mdev;
3475 struct mlx4_en_port_profile new_prof;
3476 struct mlx4_en_priv *tmp;
3480 if (priv->hwtstamp_config.tx_type == ts_config.tx_type &&
3481 priv->hwtstamp_config.rx_filter == ts_config.rx_filter &&
3482 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3483 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS))
3484 return 0; /* Nothing to change */
3486 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3487 (features & NETIF_F_HW_VLAN_CTAG_RX) &&
3488 (priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) {
3489 en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3493 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
3497 mutex_lock(&mdev->state_lock);
3499 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
3500 memcpy(&new_prof.hwtstamp_config, &ts_config, sizeof(ts_config));
3502 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
3506 if (priv->port_up) {
3508 mlx4_en_stop_port(dev, 1);
3511 en_warn(priv, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3512 ts_config.rx_filter,
3513 !!(features & NETIF_F_HW_VLAN_CTAG_RX));
3515 mlx4_en_safe_replace_resources(priv, tmp);
3517 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
3518 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3519 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3521 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3522 } else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) {
3523 /* RX time-stamping is OFF, update the RX vlan offload
3524 * to the latest wanted state
3526 if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX)
3527 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3529 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3532 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) {
3533 if (features & NETIF_F_RXFCS)
3534 dev->features |= NETIF_F_RXFCS;
3536 dev->features &= ~NETIF_F_RXFCS;
3539 /* RX vlan offload and RX time-stamping can't co-exist !
3540 * Regardless of the caller's choice,
3541 * Turn Off RX vlan offload in case of time-stamping is ON
3543 if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) {
3544 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
3545 en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n");
3546 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3550 err = mlx4_en_start_port(dev);
3552 en_err(priv, "Failed starting port\n");
3556 mutex_unlock(&mdev->state_lock);
3559 netdev_features_change(dev);