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 int mlx4_en_setup_tc(struct net_device *dev, u8 up)
56 struct mlx4_en_priv *priv = netdev_priv(dev);
58 unsigned int offset = 0;
60 if (up && up != MLX4_EN_NUM_UP)
63 netdev_set_num_tc(dev, up);
65 /* Partition Tx queues evenly amongst UP's */
66 for (i = 0; i < up; i++) {
67 netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
68 offset += priv->num_tx_rings_p_up;
71 #ifdef CONFIG_MLX4_EN_DCB
72 if (!mlx4_is_slave(priv->mdev->dev)) {
75 priv->flags |= MLX4_EN_FLAG_DCB_ENABLED;
77 priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED;
78 priv->cee_config.pfc_state = false;
81 #endif /* CONFIG_MLX4_EN_DCB */
86 static int __mlx4_en_setup_tc(struct net_device *dev, u32 handle, __be16 proto,
87 struct tc_to_netdev *tc)
89 if (tc->type != TC_SETUP_MQPRIO)
92 return mlx4_en_setup_tc(dev, tc->tc);
95 #ifdef CONFIG_RFS_ACCEL
97 struct mlx4_en_filter {
98 struct list_head next;
99 struct work_struct work;
108 struct mlx4_en_priv *priv;
109 u32 flow_id; /* RFS infrastructure id */
110 int id; /* mlx4_en driver id */
111 u64 reg_id; /* Flow steering API id */
112 u8 activated; /* Used to prevent expiry before filter
115 struct hlist_node filter_chain;
118 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
120 static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
124 return MLX4_NET_TRANS_RULE_ID_UDP;
126 return MLX4_NET_TRANS_RULE_ID_TCP;
128 return MLX4_NET_TRANS_RULE_NUM;
132 static void mlx4_en_filter_work(struct work_struct *work)
134 struct mlx4_en_filter *filter = container_of(work,
135 struct mlx4_en_filter,
137 struct mlx4_en_priv *priv = filter->priv;
138 struct mlx4_spec_list spec_tcp_udp = {
139 .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
142 .dst_port = filter->dst_port,
143 .dst_port_msk = (__force __be16)-1,
144 .src_port = filter->src_port,
145 .src_port_msk = (__force __be16)-1,
149 struct mlx4_spec_list spec_ip = {
150 .id = MLX4_NET_TRANS_RULE_ID_IPV4,
153 .dst_ip = filter->dst_ip,
154 .dst_ip_msk = (__force __be32)-1,
155 .src_ip = filter->src_ip,
156 .src_ip_msk = (__force __be32)-1,
160 struct mlx4_spec_list spec_eth = {
161 .id = MLX4_NET_TRANS_RULE_ID_ETH,
163 struct mlx4_net_trans_rule rule = {
164 .list = LIST_HEAD_INIT(rule.list),
165 .queue_mode = MLX4_NET_TRANS_Q_LIFO,
168 .promisc_mode = MLX4_FS_REGULAR,
170 .priority = MLX4_DOMAIN_RFS,
173 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
175 if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) {
176 en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
180 list_add_tail(&spec_eth.list, &rule.list);
181 list_add_tail(&spec_ip.list, &rule.list);
182 list_add_tail(&spec_tcp_udp.list, &rule.list);
184 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
185 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
186 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
188 filter->activated = 0;
190 if (filter->reg_id) {
191 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
192 if (rc && rc != -ENOENT)
193 en_err(priv, "Error detaching flow. rc = %d\n", rc);
196 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
198 en_err(priv, "Error attaching flow. err = %d\n", rc);
201 mlx4_en_filter_rfs_expire(priv);
203 filter->activated = 1;
206 static inline struct hlist_head *
207 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
208 __be16 src_port, __be16 dst_port)
213 l = (__force unsigned long)src_port |
214 ((__force unsigned long)dst_port << 2);
215 l ^= (__force unsigned long)(src_ip ^ dst_ip);
217 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
219 return &priv->filter_hash[bucket_idx];
222 static struct mlx4_en_filter *
223 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
224 __be32 dst_ip, u8 ip_proto, __be16 src_port,
225 __be16 dst_port, u32 flow_id)
227 struct mlx4_en_filter *filter = NULL;
229 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
234 filter->rxq_index = rxq_index;
235 INIT_WORK(&filter->work, mlx4_en_filter_work);
237 filter->src_ip = src_ip;
238 filter->dst_ip = dst_ip;
239 filter->ip_proto = ip_proto;
240 filter->src_port = src_port;
241 filter->dst_port = dst_port;
243 filter->flow_id = flow_id;
245 filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
247 list_add_tail(&filter->next, &priv->filters);
248 hlist_add_head(&filter->filter_chain,
249 filter_hash_bucket(priv, src_ip, dst_ip, src_port,
255 static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
257 struct mlx4_en_priv *priv = filter->priv;
260 list_del(&filter->next);
262 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
263 if (rc && rc != -ENOENT)
264 en_err(priv, "Error detaching flow. rc = %d\n", rc);
269 static inline struct mlx4_en_filter *
270 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
271 u8 ip_proto, __be16 src_port, __be16 dst_port)
273 struct mlx4_en_filter *filter;
274 struct mlx4_en_filter *ret = NULL;
276 hlist_for_each_entry(filter,
277 filter_hash_bucket(priv, src_ip, dst_ip,
280 if (filter->src_ip == src_ip &&
281 filter->dst_ip == dst_ip &&
282 filter->ip_proto == ip_proto &&
283 filter->src_port == src_port &&
284 filter->dst_port == dst_port) {
294 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
295 u16 rxq_index, u32 flow_id)
297 struct mlx4_en_priv *priv = netdev_priv(net_dev);
298 struct mlx4_en_filter *filter;
299 const struct iphdr *ip;
306 int nhoff = skb_network_offset(skb);
309 if (skb->protocol != htons(ETH_P_IP))
310 return -EPROTONOSUPPORT;
312 ip = (const struct iphdr *)(skb->data + nhoff);
313 if (ip_is_fragment(ip))
314 return -EPROTONOSUPPORT;
316 if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
317 return -EPROTONOSUPPORT;
318 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
320 ip_proto = ip->protocol;
326 spin_lock_bh(&priv->filters_lock);
327 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
330 if (filter->rxq_index == rxq_index)
333 filter->rxq_index = rxq_index;
335 filter = mlx4_en_filter_alloc(priv, rxq_index,
336 src_ip, dst_ip, ip_proto,
337 src_port, dst_port, flow_id);
344 queue_work(priv->mdev->workqueue, &filter->work);
349 spin_unlock_bh(&priv->filters_lock);
354 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
356 struct mlx4_en_filter *filter, *tmp;
359 spin_lock_bh(&priv->filters_lock);
360 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
361 list_move(&filter->next, &del_list);
362 hlist_del(&filter->filter_chain);
364 spin_unlock_bh(&priv->filters_lock);
366 list_for_each_entry_safe(filter, tmp, &del_list, next) {
367 cancel_work_sync(&filter->work);
368 mlx4_en_filter_free(filter);
372 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
374 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
378 spin_lock_bh(&priv->filters_lock);
379 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
380 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
383 if (filter->activated &&
384 !work_pending(&filter->work) &&
385 rps_may_expire_flow(priv->dev,
386 filter->rxq_index, filter->flow_id,
388 list_move(&filter->next, &del_list);
389 hlist_del(&filter->filter_chain);
391 last_filter = filter;
396 if (last_filter && (&last_filter->next != priv->filters.next))
397 list_move(&priv->filters, &last_filter->next);
399 spin_unlock_bh(&priv->filters_lock);
401 list_for_each_entry_safe(filter, tmp, &del_list, next)
402 mlx4_en_filter_free(filter);
406 static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
407 __be16 proto, u16 vid)
409 struct mlx4_en_priv *priv = netdev_priv(dev);
410 struct mlx4_en_dev *mdev = priv->mdev;
414 en_dbg(HW, priv, "adding VLAN:%d\n", vid);
416 set_bit(vid, priv->active_vlans);
418 /* Add VID to port VLAN filter */
419 mutex_lock(&mdev->state_lock);
420 if (mdev->device_up && priv->port_up) {
421 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
423 en_err(priv, "Failed configuring VLAN filter\n");
427 err = mlx4_register_vlan(mdev->dev, priv->port, vid, &idx);
429 en_dbg(HW, priv, "Failed adding vlan %d\n", vid);
432 mutex_unlock(&mdev->state_lock);
436 static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
437 __be16 proto, u16 vid)
439 struct mlx4_en_priv *priv = netdev_priv(dev);
440 struct mlx4_en_dev *mdev = priv->mdev;
443 en_dbg(HW, priv, "Killing VID:%d\n", vid);
445 clear_bit(vid, priv->active_vlans);
447 /* Remove VID from port VLAN filter */
448 mutex_lock(&mdev->state_lock);
449 mlx4_unregister_vlan(mdev->dev, priv->port, vid);
451 if (mdev->device_up && priv->port_up) {
452 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
454 en_err(priv, "Failed configuring VLAN filter\n");
456 mutex_unlock(&mdev->state_lock);
461 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
464 for (i = ETH_ALEN - 1; i >= 0; --i) {
465 dst_mac[i] = src_mac & 0xff;
468 memset(&dst_mac[ETH_ALEN], 0, 2);
472 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr,
473 int qpn, u64 *reg_id)
477 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
478 priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
479 return 0; /* do nothing */
481 err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
482 MLX4_DOMAIN_NIC, reg_id);
484 en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
487 en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id);
492 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
493 unsigned char *mac, int *qpn, u64 *reg_id)
495 struct mlx4_en_dev *mdev = priv->mdev;
496 struct mlx4_dev *dev = mdev->dev;
499 switch (dev->caps.steering_mode) {
500 case MLX4_STEERING_MODE_B0: {
505 memcpy(&gid[10], mac, ETH_ALEN);
508 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
511 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
512 struct mlx4_spec_list spec_eth = { {NULL} };
513 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
515 struct mlx4_net_trans_rule rule = {
516 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
519 .promisc_mode = MLX4_FS_REGULAR,
520 .priority = MLX4_DOMAIN_NIC,
523 rule.port = priv->port;
525 INIT_LIST_HEAD(&rule.list);
527 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
528 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
529 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
530 list_add_tail(&spec_eth.list, &rule.list);
532 err = mlx4_flow_attach(dev, &rule, reg_id);
539 en_warn(priv, "Failed Attaching Unicast\n");
544 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
545 unsigned char *mac, int qpn, u64 reg_id)
547 struct mlx4_en_dev *mdev = priv->mdev;
548 struct mlx4_dev *dev = mdev->dev;
550 switch (dev->caps.steering_mode) {
551 case MLX4_STEERING_MODE_B0: {
556 memcpy(&gid[10], mac, ETH_ALEN);
559 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
562 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
563 mlx4_flow_detach(dev, reg_id);
567 en_err(priv, "Invalid steering mode.\n");
571 static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
573 struct mlx4_en_dev *mdev = priv->mdev;
574 struct mlx4_dev *dev = mdev->dev;
577 int *qpn = &priv->base_qpn;
578 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
580 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
581 priv->dev->dev_addr);
582 index = mlx4_register_mac(dev, priv->port, mac);
585 en_err(priv, "Failed adding MAC: %pM\n",
586 priv->dev->dev_addr);
590 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
591 int base_qpn = mlx4_get_base_qpn(dev, priv->port);
592 *qpn = base_qpn + index;
596 err = mlx4_qp_reserve_range(dev, 1, 1, qpn, MLX4_RESERVE_A0_QP);
597 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
599 en_err(priv, "Failed to reserve qp for mac registration\n");
600 mlx4_unregister_mac(dev, priv->port, mac);
607 static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
609 struct mlx4_en_dev *mdev = priv->mdev;
610 struct mlx4_dev *dev = mdev->dev;
611 int qpn = priv->base_qpn;
613 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
614 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
615 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
616 priv->dev->dev_addr);
617 mlx4_unregister_mac(dev, priv->port, mac);
619 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
621 mlx4_qp_release_range(dev, qpn, 1);
622 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
626 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
627 unsigned char *new_mac, unsigned char *prev_mac)
629 struct mlx4_en_dev *mdev = priv->mdev;
630 struct mlx4_dev *dev = mdev->dev;
632 u64 new_mac_u64 = mlx4_mac_to_u64(new_mac);
634 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
635 struct hlist_head *bucket;
636 unsigned int mac_hash;
637 struct mlx4_mac_entry *entry;
638 struct hlist_node *tmp;
639 u64 prev_mac_u64 = mlx4_mac_to_u64(prev_mac);
641 bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
642 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
643 if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
644 mlx4_en_uc_steer_release(priv, entry->mac,
646 mlx4_unregister_mac(dev, priv->port,
648 hlist_del_rcu(&entry->hlist);
650 memcpy(entry->mac, new_mac, ETH_ALEN);
652 mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
653 hlist_add_head_rcu(&entry->hlist,
654 &priv->mac_hash[mac_hash]);
655 mlx4_register_mac(dev, priv->port, new_mac_u64);
656 err = mlx4_en_uc_steer_add(priv, new_mac,
661 if (priv->tunnel_reg_id) {
662 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
663 priv->tunnel_reg_id = 0;
665 err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn,
666 &priv->tunnel_reg_id);
673 return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
676 static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
677 unsigned char new_mac[ETH_ALEN + 2])
682 /* Remove old MAC and insert the new one */
683 err = mlx4_en_replace_mac(priv, priv->base_qpn,
684 new_mac, priv->current_mac);
686 en_err(priv, "Failed changing HW MAC address\n");
688 en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
691 memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
696 static int mlx4_en_set_mac(struct net_device *dev, void *addr)
698 struct mlx4_en_priv *priv = netdev_priv(dev);
699 struct mlx4_en_dev *mdev = priv->mdev;
700 struct sockaddr *saddr = addr;
701 unsigned char new_mac[ETH_ALEN + 2];
704 if (!is_valid_ether_addr(saddr->sa_data))
705 return -EADDRNOTAVAIL;
707 mutex_lock(&mdev->state_lock);
708 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
709 err = mlx4_en_do_set_mac(priv, new_mac);
711 memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
712 mutex_unlock(&mdev->state_lock);
717 static void mlx4_en_clear_list(struct net_device *dev)
719 struct mlx4_en_priv *priv = netdev_priv(dev);
720 struct mlx4_en_mc_list *tmp, *mc_to_del;
722 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
723 list_del(&mc_to_del->list);
728 static void mlx4_en_cache_mclist(struct net_device *dev)
730 struct mlx4_en_priv *priv = netdev_priv(dev);
731 struct netdev_hw_addr *ha;
732 struct mlx4_en_mc_list *tmp;
734 mlx4_en_clear_list(dev);
735 netdev_for_each_mc_addr(ha, dev) {
736 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
738 mlx4_en_clear_list(dev);
741 memcpy(tmp->addr, ha->addr, ETH_ALEN);
742 list_add_tail(&tmp->list, &priv->mc_list);
746 static void update_mclist_flags(struct mlx4_en_priv *priv,
747 struct list_head *dst,
748 struct list_head *src)
750 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
753 /* Find all the entries that should be removed from dst,
754 * These are the entries that are not found in src
756 list_for_each_entry(dst_tmp, dst, list) {
758 list_for_each_entry(src_tmp, src, list) {
759 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
765 dst_tmp->action = MCLIST_REM;
768 /* Add entries that exist in src but not in dst
769 * mark them as need to add
771 list_for_each_entry(src_tmp, src, list) {
773 list_for_each_entry(dst_tmp, dst, list) {
774 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
775 dst_tmp->action = MCLIST_NONE;
781 new_mc = kmemdup(src_tmp,
782 sizeof(struct mlx4_en_mc_list),
787 new_mc->action = MCLIST_ADD;
788 list_add_tail(&new_mc->list, dst);
793 static void mlx4_en_set_rx_mode(struct net_device *dev)
795 struct mlx4_en_priv *priv = netdev_priv(dev);
800 queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
803 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
804 struct mlx4_en_dev *mdev)
808 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
809 if (netif_msg_rx_status(priv))
810 en_warn(priv, "Entering promiscuous mode\n");
811 priv->flags |= MLX4_EN_FLAG_PROMISC;
813 /* Enable promiscouos mode */
814 switch (mdev->dev->caps.steering_mode) {
815 case MLX4_STEERING_MODE_DEVICE_MANAGED:
816 err = mlx4_flow_steer_promisc_add(mdev->dev,
819 MLX4_FS_ALL_DEFAULT);
821 en_err(priv, "Failed enabling promiscuous mode\n");
822 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
825 case MLX4_STEERING_MODE_B0:
826 err = mlx4_unicast_promisc_add(mdev->dev,
830 en_err(priv, "Failed enabling unicast promiscuous mode\n");
832 /* Add the default qp number as multicast
835 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
836 err = mlx4_multicast_promisc_add(mdev->dev,
840 en_err(priv, "Failed enabling multicast promiscuous mode\n");
841 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
845 case MLX4_STEERING_MODE_A0:
846 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
851 en_err(priv, "Failed enabling promiscuous mode\n");
855 /* Disable port multicast filter (unconditionally) */
856 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
857 0, MLX4_MCAST_DISABLE);
859 en_err(priv, "Failed disabling multicast filter\n");
863 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
864 struct mlx4_en_dev *mdev)
868 if (netif_msg_rx_status(priv))
869 en_warn(priv, "Leaving promiscuous mode\n");
870 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
872 /* Disable promiscouos mode */
873 switch (mdev->dev->caps.steering_mode) {
874 case MLX4_STEERING_MODE_DEVICE_MANAGED:
875 err = mlx4_flow_steer_promisc_remove(mdev->dev,
877 MLX4_FS_ALL_DEFAULT);
879 en_err(priv, "Failed disabling promiscuous mode\n");
880 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
883 case MLX4_STEERING_MODE_B0:
884 err = mlx4_unicast_promisc_remove(mdev->dev,
888 en_err(priv, "Failed disabling unicast promiscuous mode\n");
889 /* Disable Multicast promisc */
890 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
891 err = mlx4_multicast_promisc_remove(mdev->dev,
895 en_err(priv, "Failed disabling multicast promiscuous mode\n");
896 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
900 case MLX4_STEERING_MODE_A0:
901 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
905 en_err(priv, "Failed disabling promiscuous mode\n");
910 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
911 struct net_device *dev,
912 struct mlx4_en_dev *mdev)
914 struct mlx4_en_mc_list *mclist, *tmp;
916 u8 mc_list[16] = {0};
919 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
920 if (dev->flags & IFF_ALLMULTI) {
921 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
922 0, MLX4_MCAST_DISABLE);
924 en_err(priv, "Failed disabling multicast filter\n");
926 /* Add the default qp number as multicast promisc */
927 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
928 switch (mdev->dev->caps.steering_mode) {
929 case MLX4_STEERING_MODE_DEVICE_MANAGED:
930 err = mlx4_flow_steer_promisc_add(mdev->dev,
936 case MLX4_STEERING_MODE_B0:
937 err = mlx4_multicast_promisc_add(mdev->dev,
942 case MLX4_STEERING_MODE_A0:
946 en_err(priv, "Failed entering multicast promisc mode\n");
947 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
950 /* Disable Multicast promisc */
951 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
952 switch (mdev->dev->caps.steering_mode) {
953 case MLX4_STEERING_MODE_DEVICE_MANAGED:
954 err = mlx4_flow_steer_promisc_remove(mdev->dev,
959 case MLX4_STEERING_MODE_B0:
960 err = mlx4_multicast_promisc_remove(mdev->dev,
965 case MLX4_STEERING_MODE_A0:
969 en_err(priv, "Failed disabling multicast promiscuous mode\n");
970 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
973 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
974 0, MLX4_MCAST_DISABLE);
976 en_err(priv, "Failed disabling multicast filter\n");
978 /* Flush mcast filter and init it with broadcast address */
979 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
980 1, MLX4_MCAST_CONFIG);
982 /* Update multicast list - we cache all addresses so they won't
983 * change while HW is updated holding the command semaphor */
984 netif_addr_lock_bh(dev);
985 mlx4_en_cache_mclist(dev);
986 netif_addr_unlock_bh(dev);
987 list_for_each_entry(mclist, &priv->mc_list, list) {
988 mcast_addr = mlx4_mac_to_u64(mclist->addr);
989 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
990 mcast_addr, 0, MLX4_MCAST_CONFIG);
992 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
993 0, MLX4_MCAST_ENABLE);
995 en_err(priv, "Failed enabling multicast filter\n");
997 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
998 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
999 if (mclist->action == MCLIST_REM) {
1000 /* detach this address and delete from list */
1001 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1002 mc_list[5] = priv->port;
1003 err = mlx4_multicast_detach(mdev->dev,
1004 &priv->rss_map.indir_qp,
1009 en_err(priv, "Fail to detach multicast address\n");
1011 if (mclist->tunnel_reg_id) {
1012 err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id);
1014 en_err(priv, "Failed to detach multicast address\n");
1017 /* remove from list */
1018 list_del(&mclist->list);
1020 } else if (mclist->action == MCLIST_ADD) {
1021 /* attach the address */
1022 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1023 /* needed for B0 steering support */
1024 mc_list[5] = priv->port;
1025 err = mlx4_multicast_attach(mdev->dev,
1026 &priv->rss_map.indir_qp,
1032 en_err(priv, "Fail to attach multicast address\n");
1034 err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn,
1035 &mclist->tunnel_reg_id);
1037 en_err(priv, "Failed to attach multicast address\n");
1043 static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
1044 struct net_device *dev,
1045 struct mlx4_en_dev *mdev)
1047 struct netdev_hw_addr *ha;
1048 struct mlx4_mac_entry *entry;
1049 struct hlist_node *tmp;
1053 struct hlist_head *bucket;
1058 /* Note that we do not need to protect our mac_hash traversal with rcu,
1059 * since all modification code is protected by mdev->state_lock
1062 /* find what to remove */
1063 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1064 bucket = &priv->mac_hash[i];
1065 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1067 netdev_for_each_uc_addr(ha, dev) {
1068 if (ether_addr_equal_64bits(entry->mac,
1075 /* MAC address of the port is not in uc list */
1076 if (ether_addr_equal_64bits(entry->mac,
1081 mac = mlx4_mac_to_u64(entry->mac);
1082 mlx4_en_uc_steer_release(priv, entry->mac,
1085 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1087 hlist_del_rcu(&entry->hlist);
1088 kfree_rcu(entry, rcu);
1089 en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
1090 entry->mac, priv->port);
1096 /* if we didn't remove anything, there is no use in trying to add
1097 * again once we are in a forced promisc mode state
1099 if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
1102 prev_flags = priv->flags;
1103 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
1105 /* find what to add */
1106 netdev_for_each_uc_addr(ha, dev) {
1108 bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
1109 hlist_for_each_entry(entry, bucket, hlist) {
1110 if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
1117 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1119 en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
1120 ha->addr, priv->port);
1121 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1124 mac = mlx4_mac_to_u64(ha->addr);
1125 memcpy(entry->mac, ha->addr, ETH_ALEN);
1126 err = mlx4_register_mac(mdev->dev, priv->port, mac);
1128 en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
1129 ha->addr, priv->port, err);
1131 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1134 err = mlx4_en_uc_steer_add(priv, ha->addr,
1138 en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
1139 ha->addr, priv->port, err);
1140 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1142 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1145 unsigned int mac_hash;
1146 en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
1147 ha->addr, priv->port);
1148 mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
1149 bucket = &priv->mac_hash[mac_hash];
1150 hlist_add_head_rcu(&entry->hlist, bucket);
1155 if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1156 en_warn(priv, "Forcing promiscuous mode on port:%d\n",
1158 } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1159 en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
1164 static void mlx4_en_do_set_rx_mode(struct work_struct *work)
1166 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1168 struct mlx4_en_dev *mdev = priv->mdev;
1169 struct net_device *dev = priv->dev;
1171 mutex_lock(&mdev->state_lock);
1172 if (!mdev->device_up) {
1173 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
1176 if (!priv->port_up) {
1177 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
1181 if (!netif_carrier_ok(dev)) {
1182 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
1183 if (priv->port_state.link_state) {
1184 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
1185 netif_carrier_on(dev);
1186 en_dbg(LINK, priv, "Link Up\n");
1191 if (dev->priv_flags & IFF_UNICAST_FLT)
1192 mlx4_en_do_uc_filter(priv, dev, mdev);
1194 /* Promsicuous mode: disable all filters */
1195 if ((dev->flags & IFF_PROMISC) ||
1196 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
1197 mlx4_en_set_promisc_mode(priv, mdev);
1201 /* Not in promiscuous mode */
1202 if (priv->flags & MLX4_EN_FLAG_PROMISC)
1203 mlx4_en_clear_promisc_mode(priv, mdev);
1205 mlx4_en_do_multicast(priv, dev, mdev);
1207 mutex_unlock(&mdev->state_lock);
1210 #ifdef CONFIG_NET_POLL_CONTROLLER
1211 static void mlx4_en_netpoll(struct net_device *dev)
1213 struct mlx4_en_priv *priv = netdev_priv(dev);
1214 struct mlx4_en_cq *cq;
1217 for (i = 0; i < priv->tx_ring_num; i++) {
1218 cq = priv->tx_cq[i];
1219 napi_schedule(&cq->napi);
1224 static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv)
1228 int *qpn = &priv->base_qpn;
1229 struct mlx4_mac_entry *entry;
1231 err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
1235 err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn,
1236 &priv->tunnel_reg_id);
1240 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1246 memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
1247 memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
1248 entry->reg_id = reg_id;
1249 hlist_add_head_rcu(&entry->hlist,
1250 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
1255 if (priv->tunnel_reg_id)
1256 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1259 mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
1263 static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv *priv)
1267 int qpn = priv->base_qpn;
1268 struct hlist_head *bucket;
1269 struct hlist_node *tmp;
1270 struct mlx4_mac_entry *entry;
1272 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1273 bucket = &priv->mac_hash[i];
1274 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1275 mac = mlx4_mac_to_u64(entry->mac);
1276 en_dbg(DRV, priv, "Registering MAC:%pM for deleting\n",
1278 mlx4_en_uc_steer_release(priv, entry->mac,
1279 qpn, entry->reg_id);
1281 mlx4_unregister_mac(priv->mdev->dev, priv->port, mac);
1282 hlist_del_rcu(&entry->hlist);
1283 kfree_rcu(entry, rcu);
1287 if (priv->tunnel_reg_id) {
1288 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1289 priv->tunnel_reg_id = 0;
1293 static void mlx4_en_tx_timeout(struct net_device *dev)
1295 struct mlx4_en_priv *priv = netdev_priv(dev);
1296 struct mlx4_en_dev *mdev = priv->mdev;
1299 if (netif_msg_timer(priv))
1300 en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
1302 for (i = 0; i < priv->tx_ring_num; i++) {
1303 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
1305 en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1306 i, priv->tx_ring[i]->qpn, priv->tx_ring[i]->cqn,
1307 priv->tx_ring[i]->cons, priv->tx_ring[i]->prod);
1310 priv->port_stats.tx_timeout++;
1311 en_dbg(DRV, priv, "Scheduling watchdog\n");
1312 queue_work(mdev->workqueue, &priv->watchdog_task);
1316 static struct rtnl_link_stats64 *
1317 mlx4_en_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1319 struct mlx4_en_priv *priv = netdev_priv(dev);
1321 spin_lock_bh(&priv->stats_lock);
1322 netdev_stats_to_stats64(stats, &dev->stats);
1323 spin_unlock_bh(&priv->stats_lock);
1328 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
1330 struct mlx4_en_cq *cq;
1333 /* If we haven't received a specific coalescing setting
1334 * (module param), we set the moderation parameters as follows:
1335 * - moder_cnt is set to the number of mtu sized packets to
1336 * satisfy our coalescing target.
1337 * - moder_time is set to a fixed value.
1339 priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
1340 priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
1341 priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
1342 priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
1343 en_dbg(INTR, priv, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1344 priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
1346 /* Setup cq moderation params */
1347 for (i = 0; i < priv->rx_ring_num; i++) {
1348 cq = priv->rx_cq[i];
1349 cq->moder_cnt = priv->rx_frames;
1350 cq->moder_time = priv->rx_usecs;
1351 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1352 priv->last_moder_packets[i] = 0;
1353 priv->last_moder_bytes[i] = 0;
1356 for (i = 0; i < priv->tx_ring_num; i++) {
1357 cq = priv->tx_cq[i];
1358 cq->moder_cnt = priv->tx_frames;
1359 cq->moder_time = priv->tx_usecs;
1362 /* Reset auto-moderation params */
1363 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
1364 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
1365 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
1366 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
1367 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
1368 priv->adaptive_rx_coal = 1;
1369 priv->last_moder_jiffies = 0;
1370 priv->last_moder_tx_packets = 0;
1373 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
1375 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
1376 struct mlx4_en_cq *cq;
1377 unsigned long packets;
1379 unsigned long avg_pkt_size;
1380 unsigned long rx_packets;
1381 unsigned long rx_bytes;
1382 unsigned long rx_pkt_diff;
1386 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
1389 for (ring = 0; ring < priv->rx_ring_num; ring++) {
1390 spin_lock_bh(&priv->stats_lock);
1391 rx_packets = priv->rx_ring[ring]->packets;
1392 rx_bytes = priv->rx_ring[ring]->bytes;
1393 spin_unlock_bh(&priv->stats_lock);
1395 rx_pkt_diff = ((unsigned long) (rx_packets -
1396 priv->last_moder_packets[ring]));
1397 packets = rx_pkt_diff;
1398 rate = packets * HZ / period;
1399 avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
1400 priv->last_moder_bytes[ring])) / packets : 0;
1402 /* Apply auto-moderation only when packet rate
1403 * exceeds a rate that it matters */
1404 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
1405 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
1406 if (rate < priv->pkt_rate_low)
1407 moder_time = priv->rx_usecs_low;
1408 else if (rate > priv->pkt_rate_high)
1409 moder_time = priv->rx_usecs_high;
1411 moder_time = (rate - priv->pkt_rate_low) *
1412 (priv->rx_usecs_high - priv->rx_usecs_low) /
1413 (priv->pkt_rate_high - priv->pkt_rate_low) +
1416 moder_time = priv->rx_usecs_low;
1419 if (moder_time != priv->last_moder_time[ring]) {
1420 priv->last_moder_time[ring] = moder_time;
1421 cq = priv->rx_cq[ring];
1422 cq->moder_time = moder_time;
1423 cq->moder_cnt = priv->rx_frames;
1424 err = mlx4_en_set_cq_moder(priv, cq);
1426 en_err(priv, "Failed modifying moderation for cq:%d\n",
1429 priv->last_moder_packets[ring] = rx_packets;
1430 priv->last_moder_bytes[ring] = rx_bytes;
1433 priv->last_moder_jiffies = jiffies;
1436 static void mlx4_en_do_get_stats(struct work_struct *work)
1438 struct delayed_work *delay = to_delayed_work(work);
1439 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1441 struct mlx4_en_dev *mdev = priv->mdev;
1444 mutex_lock(&mdev->state_lock);
1445 if (mdev->device_up) {
1446 if (priv->port_up) {
1447 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
1449 en_dbg(HW, priv, "Could not update stats\n");
1451 mlx4_en_auto_moderation(priv);
1454 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
1456 if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
1457 mlx4_en_do_set_mac(priv, priv->current_mac);
1458 mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
1460 mutex_unlock(&mdev->state_lock);
1463 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1466 static void mlx4_en_service_task(struct work_struct *work)
1468 struct delayed_work *delay = to_delayed_work(work);
1469 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1471 struct mlx4_en_dev *mdev = priv->mdev;
1473 mutex_lock(&mdev->state_lock);
1474 if (mdev->device_up) {
1475 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
1476 mlx4_en_ptp_overflow_check(mdev);
1478 mlx4_en_recover_from_oom(priv);
1479 queue_delayed_work(mdev->workqueue, &priv->service_task,
1480 SERVICE_TASK_DELAY);
1482 mutex_unlock(&mdev->state_lock);
1485 static void mlx4_en_linkstate(struct work_struct *work)
1487 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1489 struct mlx4_en_dev *mdev = priv->mdev;
1490 int linkstate = priv->link_state;
1492 mutex_lock(&mdev->state_lock);
1493 /* If observable port state changed set carrier state and
1494 * report to system log */
1495 if (priv->last_link_state != linkstate) {
1496 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
1497 en_info(priv, "Link Down\n");
1498 netif_carrier_off(priv->dev);
1500 en_info(priv, "Link Up\n");
1501 netif_carrier_on(priv->dev);
1504 priv->last_link_state = linkstate;
1505 mutex_unlock(&mdev->state_lock);
1508 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1510 struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx];
1511 int numa_node = priv->mdev->dev->numa_node;
1513 if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL))
1516 cpumask_set_cpu(cpumask_local_spread(ring_idx, numa_node),
1517 ring->affinity_mask);
1521 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1523 free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask);
1526 static void mlx4_en_init_recycle_ring(struct mlx4_en_priv *priv,
1529 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[tx_ring_idx];
1532 rr_index = (priv->xdp_ring_num - priv->tx_ring_num) + tx_ring_idx;
1533 if (rr_index >= 0) {
1534 tx_ring->free_tx_desc = mlx4_en_recycle_tx_desc;
1535 tx_ring->recycle_ring = priv->rx_ring[rr_index];
1537 "Set tx_ring[%d]->recycle_ring = rx_ring[%d]\n",
1538 tx_ring_idx, rr_index);
1540 tx_ring->recycle_ring = NULL;
1544 int mlx4_en_start_port(struct net_device *dev)
1546 struct mlx4_en_priv *priv = netdev_priv(dev);
1547 struct mlx4_en_dev *mdev = priv->mdev;
1548 struct mlx4_en_cq *cq;
1549 struct mlx4_en_tx_ring *tx_ring;
1555 u8 mc_list[16] = {0};
1557 if (priv->port_up) {
1558 en_dbg(DRV, priv, "start port called while port already up\n");
1562 INIT_LIST_HEAD(&priv->mc_list);
1563 INIT_LIST_HEAD(&priv->curr_list);
1564 INIT_LIST_HEAD(&priv->ethtool_list);
1565 memset(&priv->ethtool_rules[0], 0,
1566 sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
1568 /* Calculate Rx buf size */
1569 dev->mtu = min(dev->mtu, priv->max_mtu);
1570 mlx4_en_calc_rx_buf(dev);
1571 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
1573 /* Configure rx cq's and rings */
1574 err = mlx4_en_activate_rx_rings(priv);
1576 en_err(priv, "Failed to activate RX rings\n");
1579 for (i = 0; i < priv->rx_ring_num; i++) {
1580 cq = priv->rx_cq[i];
1582 err = mlx4_en_init_affinity_hint(priv, i);
1584 en_err(priv, "Failed preparing IRQ affinity hint\n");
1588 err = mlx4_en_activate_cq(priv, cq, i);
1590 en_err(priv, "Failed activating Rx CQ\n");
1591 mlx4_en_free_affinity_hint(priv, i);
1595 for (j = 0; j < cq->size; j++) {
1596 struct mlx4_cqe *cqe = NULL;
1598 cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) +
1600 cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK;
1603 err = mlx4_en_set_cq_moder(priv, cq);
1605 en_err(priv, "Failed setting cq moderation parameters\n");
1606 mlx4_en_deactivate_cq(priv, cq);
1607 mlx4_en_free_affinity_hint(priv, i);
1610 mlx4_en_arm_cq(priv, cq);
1611 priv->rx_ring[i]->cqn = cq->mcq.cqn;
1616 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
1617 err = mlx4_en_get_qp(priv);
1619 en_err(priv, "Failed getting eth qp\n");
1622 mdev->mac_removed[priv->port] = 0;
1624 priv->counter_index =
1625 mlx4_get_default_counter_index(mdev->dev, priv->port);
1627 err = mlx4_en_config_rss_steer(priv);
1629 en_err(priv, "Failed configuring rss steering\n");
1633 err = mlx4_en_create_drop_qp(priv);
1637 /* Configure tx cq's and rings */
1638 for (i = 0; i < priv->tx_ring_num; i++) {
1640 cq = priv->tx_cq[i];
1641 err = mlx4_en_activate_cq(priv, cq, i);
1643 en_err(priv, "Failed allocating Tx CQ\n");
1646 err = mlx4_en_set_cq_moder(priv, cq);
1648 en_err(priv, "Failed setting cq moderation parameters\n");
1649 mlx4_en_deactivate_cq(priv, cq);
1652 en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
1653 cq->buf->wqe_index = cpu_to_be16(0xffff);
1655 /* Configure ring */
1656 tx_ring = priv->tx_ring[i];
1657 err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
1658 i / priv->num_tx_rings_p_up);
1660 en_err(priv, "Failed allocating Tx ring\n");
1661 mlx4_en_deactivate_cq(priv, cq);
1664 tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
1666 mlx4_en_init_recycle_ring(priv, i);
1668 /* Arm CQ for TX completions */
1669 mlx4_en_arm_cq(priv, cq);
1671 /* Set initial ownership of all Tx TXBBs to SW (1) */
1672 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
1673 *((u32 *) (tx_ring->buf + j)) = 0xffffffff;
1677 /* Configure port */
1678 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1679 priv->rx_skb_size + ETH_FCS_LEN,
1680 priv->prof->tx_pause,
1682 priv->prof->rx_pause,
1683 priv->prof->rx_ppp);
1685 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
1689 /* Set default qp number */
1690 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
1692 en_err(priv, "Failed setting default qp numbers\n");
1696 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
1697 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
1699 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
1706 en_dbg(HW, priv, "Initializing port\n");
1707 err = mlx4_INIT_PORT(mdev->dev, priv->port);
1709 en_err(priv, "Failed Initializing port\n");
1713 /* Set Unicast and VXLAN steering rules */
1714 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0 &&
1715 mlx4_en_set_rss_steer_rules(priv))
1716 mlx4_warn(mdev, "Failed setting steering rules\n");
1718 /* Attach rx QP to bradcast address */
1719 eth_broadcast_addr(&mc_list[10]);
1720 mc_list[5] = priv->port; /* needed for B0 steering support */
1721 if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1722 priv->port, 0, MLX4_PROT_ETH,
1723 &priv->broadcast_id))
1724 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
1726 /* Must redo promiscuous mode setup. */
1727 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
1729 /* Schedule multicast task to populate multicast list */
1730 queue_work(mdev->workqueue, &priv->rx_mode_task);
1732 if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
1733 udp_tunnel_get_rx_info(dev);
1735 priv->port_up = true;
1736 netif_tx_start_all_queues(dev);
1737 netif_device_attach(dev);
1742 while (tx_index--) {
1743 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[tx_index]);
1744 mlx4_en_deactivate_cq(priv, priv->tx_cq[tx_index]);
1746 mlx4_en_destroy_drop_qp(priv);
1748 mlx4_en_release_rss_steer(priv);
1750 mlx4_en_put_qp(priv);
1752 while (rx_index--) {
1753 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
1754 mlx4_en_free_affinity_hint(priv, rx_index);
1756 for (i = 0; i < priv->rx_ring_num; i++)
1757 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1759 return err; /* need to close devices */
1763 void mlx4_en_stop_port(struct net_device *dev, int detach)
1765 struct mlx4_en_priv *priv = netdev_priv(dev);
1766 struct mlx4_en_dev *mdev = priv->mdev;
1767 struct mlx4_en_mc_list *mclist, *tmp;
1768 struct ethtool_flow_id *flow, *tmp_flow;
1770 u8 mc_list[16] = {0};
1772 if (!priv->port_up) {
1773 en_dbg(DRV, priv, "stop port called while port already down\n");
1778 mlx4_CLOSE_PORT(mdev->dev, priv->port);
1780 /* Synchronize with tx routine */
1781 netif_tx_lock_bh(dev);
1783 netif_device_detach(dev);
1784 netif_tx_stop_all_queues(dev);
1785 netif_tx_unlock_bh(dev);
1787 netif_tx_disable(dev);
1789 /* Set port as not active */
1790 priv->port_up = false;
1791 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
1793 /* Promsicuous mode */
1794 if (mdev->dev->caps.steering_mode ==
1795 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1796 priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
1797 MLX4_EN_FLAG_MC_PROMISC);
1798 mlx4_flow_steer_promisc_remove(mdev->dev,
1800 MLX4_FS_ALL_DEFAULT);
1801 mlx4_flow_steer_promisc_remove(mdev->dev,
1803 MLX4_FS_MC_DEFAULT);
1804 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
1805 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
1807 /* Disable promiscouos mode */
1808 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
1811 /* Disable Multicast promisc */
1812 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1813 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
1815 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1819 /* Detach All multicasts */
1820 eth_broadcast_addr(&mc_list[10]);
1821 mc_list[5] = priv->port; /* needed for B0 steering support */
1822 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1823 MLX4_PROT_ETH, priv->broadcast_id);
1824 list_for_each_entry(mclist, &priv->curr_list, list) {
1825 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1826 mc_list[5] = priv->port;
1827 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
1828 mc_list, MLX4_PROT_ETH, mclist->reg_id);
1829 if (mclist->tunnel_reg_id)
1830 mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id);
1832 mlx4_en_clear_list(dev);
1833 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1834 list_del(&mclist->list);
1838 /* Flush multicast filter */
1839 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
1841 /* Remove flow steering rules for the port*/
1842 if (mdev->dev->caps.steering_mode ==
1843 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1845 list_for_each_entry_safe(flow, tmp_flow,
1846 &priv->ethtool_list, list) {
1847 mlx4_flow_detach(mdev->dev, flow->id);
1848 list_del(&flow->list);
1852 mlx4_en_destroy_drop_qp(priv);
1855 for (i = 0; i < priv->tx_ring_num; i++) {
1856 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[i]);
1857 mlx4_en_deactivate_cq(priv, priv->tx_cq[i]);
1861 for (i = 0; i < priv->tx_ring_num; i++)
1862 mlx4_en_free_tx_buf(dev, priv->tx_ring[i]);
1864 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
1865 mlx4_en_delete_rss_steer_rules(priv);
1868 mlx4_en_release_rss_steer(priv);
1870 /* Unregister Mac address for the port */
1871 mlx4_en_put_qp(priv);
1872 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
1873 mdev->mac_removed[priv->port] = 1;
1876 for (i = 0; i < priv->rx_ring_num; i++) {
1877 struct mlx4_en_cq *cq = priv->rx_cq[i];
1879 napi_synchronize(&cq->napi);
1880 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1881 mlx4_en_deactivate_cq(priv, cq);
1883 mlx4_en_free_affinity_hint(priv, i);
1887 static void mlx4_en_restart(struct work_struct *work)
1889 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1891 struct mlx4_en_dev *mdev = priv->mdev;
1892 struct net_device *dev = priv->dev;
1894 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
1897 mutex_lock(&mdev->state_lock);
1898 if (priv->port_up) {
1899 mlx4_en_stop_port(dev, 1);
1900 if (mlx4_en_start_port(dev))
1901 en_err(priv, "Failed restarting port %d\n", priv->port);
1903 mutex_unlock(&mdev->state_lock);
1907 static void mlx4_en_clear_stats(struct net_device *dev)
1909 struct mlx4_en_priv *priv = netdev_priv(dev);
1910 struct mlx4_en_dev *mdev = priv->mdev;
1913 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
1914 en_dbg(HW, priv, "Failed dumping statistics\n");
1916 memset(&priv->pstats, 0, sizeof(priv->pstats));
1917 memset(&priv->pkstats, 0, sizeof(priv->pkstats));
1918 memset(&priv->port_stats, 0, sizeof(priv->port_stats));
1919 memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats));
1920 memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats));
1921 memset(&priv->rx_priority_flowstats, 0,
1922 sizeof(priv->rx_priority_flowstats));
1923 memset(&priv->tx_priority_flowstats, 0,
1924 sizeof(priv->tx_priority_flowstats));
1925 memset(&priv->pf_stats, 0, sizeof(priv->pf_stats));
1927 for (i = 0; i < priv->tx_ring_num; i++) {
1928 priv->tx_ring[i]->bytes = 0;
1929 priv->tx_ring[i]->packets = 0;
1930 priv->tx_ring[i]->tx_csum = 0;
1931 priv->tx_ring[i]->tx_dropped = 0;
1932 priv->tx_ring[i]->queue_stopped = 0;
1933 priv->tx_ring[i]->wake_queue = 0;
1934 priv->tx_ring[i]->tso_packets = 0;
1935 priv->tx_ring[i]->xmit_more = 0;
1937 for (i = 0; i < priv->rx_ring_num; i++) {
1938 priv->rx_ring[i]->bytes = 0;
1939 priv->rx_ring[i]->packets = 0;
1940 priv->rx_ring[i]->csum_ok = 0;
1941 priv->rx_ring[i]->csum_none = 0;
1942 priv->rx_ring[i]->csum_complete = 0;
1946 static int mlx4_en_open(struct net_device *dev)
1948 struct mlx4_en_priv *priv = netdev_priv(dev);
1949 struct mlx4_en_dev *mdev = priv->mdev;
1952 mutex_lock(&mdev->state_lock);
1954 if (!mdev->device_up) {
1955 en_err(priv, "Cannot open - device down/disabled\n");
1960 /* Reset HW statistics and SW counters */
1961 mlx4_en_clear_stats(dev);
1963 err = mlx4_en_start_port(dev);
1965 en_err(priv, "Failed starting port:%d\n", priv->port);
1968 mutex_unlock(&mdev->state_lock);
1973 static int mlx4_en_close(struct net_device *dev)
1975 struct mlx4_en_priv *priv = netdev_priv(dev);
1976 struct mlx4_en_dev *mdev = priv->mdev;
1978 en_dbg(IFDOWN, priv, "Close port called\n");
1980 mutex_lock(&mdev->state_lock);
1982 mlx4_en_stop_port(dev, 0);
1983 netif_carrier_off(dev);
1985 mutex_unlock(&mdev->state_lock);
1989 static void mlx4_en_free_resources(struct mlx4_en_priv *priv)
1993 #ifdef CONFIG_RFS_ACCEL
1994 priv->dev->rx_cpu_rmap = NULL;
1997 for (i = 0; i < priv->tx_ring_num; i++) {
1998 if (priv->tx_ring && priv->tx_ring[i])
1999 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
2000 if (priv->tx_cq && priv->tx_cq[i])
2001 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
2004 for (i = 0; i < priv->rx_ring_num; i++) {
2005 if (priv->rx_ring[i])
2006 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2007 priv->prof->rx_ring_size, priv->stride);
2009 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2014 static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
2016 struct mlx4_en_port_profile *prof = priv->prof;
2020 /* Create tx Rings */
2021 for (i = 0; i < priv->tx_ring_num; i++) {
2022 node = cpu_to_node(i % num_online_cpus());
2023 if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
2024 prof->tx_ring_size, i, TX, node))
2027 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
2028 prof->tx_ring_size, TXBB_SIZE,
2033 /* Create rx Rings */
2034 for (i = 0; i < priv->rx_ring_num; i++) {
2035 node = cpu_to_node(i % num_online_cpus());
2036 if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
2037 prof->rx_ring_size, i, RX, node))
2040 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
2041 prof->rx_ring_size, priv->stride,
2046 #ifdef CONFIG_RFS_ACCEL
2047 priv->dev->rx_cpu_rmap = mlx4_get_cpu_rmap(priv->mdev->dev, priv->port);
2053 en_err(priv, "Failed to allocate NIC resources\n");
2054 for (i = 0; i < priv->rx_ring_num; i++) {
2055 if (priv->rx_ring[i])
2056 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2060 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2062 for (i = 0; i < priv->tx_ring_num; i++) {
2063 if (priv->tx_ring[i])
2064 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
2066 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
2071 static void mlx4_en_shutdown(struct net_device *dev)
2074 netif_device_detach(dev);
2079 static int mlx4_en_copy_priv(struct mlx4_en_priv *dst,
2080 struct mlx4_en_priv *src,
2081 struct mlx4_en_port_profile *prof)
2083 memcpy(&dst->hwtstamp_config, &prof->hwtstamp_config,
2084 sizeof(dst->hwtstamp_config));
2085 dst->num_tx_rings_p_up = src->mdev->profile.num_tx_rings_p_up;
2086 dst->tx_ring_num = prof->tx_ring_num;
2087 dst->rx_ring_num = prof->rx_ring_num;
2088 dst->flags = prof->flags;
2089 dst->mdev = src->mdev;
2090 dst->port = src->port;
2091 dst->dev = src->dev;
2093 dst->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
2094 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
2096 dst->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring *) * MAX_TX_RINGS,
2101 dst->tx_cq = kzalloc(sizeof(struct mlx4_en_cq *) * MAX_TX_RINGS,
2104 kfree(dst->tx_ring);
2110 static void mlx4_en_update_priv(struct mlx4_en_priv *dst,
2111 struct mlx4_en_priv *src)
2113 memcpy(dst->rx_ring, src->rx_ring,
2114 sizeof(struct mlx4_en_rx_ring *) * src->rx_ring_num);
2115 memcpy(dst->rx_cq, src->rx_cq,
2116 sizeof(struct mlx4_en_cq *) * src->rx_ring_num);
2117 memcpy(&dst->hwtstamp_config, &src->hwtstamp_config,
2118 sizeof(dst->hwtstamp_config));
2119 dst->tx_ring_num = src->tx_ring_num;
2120 dst->rx_ring_num = src->rx_ring_num;
2121 dst->tx_ring = src->tx_ring;
2122 dst->tx_cq = src->tx_cq;
2123 memcpy(dst->prof, src->prof, sizeof(struct mlx4_en_port_profile));
2126 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv,
2127 struct mlx4_en_priv *tmp,
2128 struct mlx4_en_port_profile *prof)
2130 mlx4_en_copy_priv(tmp, priv, prof);
2132 if (mlx4_en_alloc_resources(tmp)) {
2134 "%s: Resource allocation failed, using previous configuration\n",
2136 kfree(tmp->tx_ring);
2143 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv,
2144 struct mlx4_en_priv *tmp)
2146 mlx4_en_free_resources(priv);
2147 mlx4_en_update_priv(priv, tmp);
2150 void mlx4_en_destroy_netdev(struct net_device *dev)
2152 struct mlx4_en_priv *priv = netdev_priv(dev);
2153 struct mlx4_en_dev *mdev = priv->mdev;
2154 bool shutdown = mdev->dev->persist->interface_state &
2155 MLX4_INTERFACE_STATE_SHUTDOWN;
2157 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
2159 /* Unregister device - this will close the port if it was up */
2160 if (priv->registered) {
2161 devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev,
2164 mlx4_en_shutdown(dev);
2166 unregister_netdev(dev);
2169 if (priv->allocated)
2170 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
2172 cancel_delayed_work(&priv->stats_task);
2173 cancel_delayed_work(&priv->service_task);
2174 /* flush any pending task for this netdev */
2175 flush_workqueue(mdev->workqueue);
2177 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
2178 mlx4_en_remove_timestamp(mdev);
2180 /* Detach the netdev so tasks would not attempt to access it */
2181 mutex_lock(&mdev->state_lock);
2182 mdev->pndev[priv->port] = NULL;
2183 mdev->upper[priv->port] = NULL;
2184 mutex_unlock(&mdev->state_lock);
2186 #ifdef CONFIG_RFS_ACCEL
2187 mlx4_en_cleanup_filters(priv);
2190 mlx4_en_free_resources(priv);
2192 kfree(priv->tx_ring);
2199 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
2201 struct mlx4_en_priv *priv = netdev_priv(dev);
2202 struct mlx4_en_dev *mdev = priv->mdev;
2205 en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
2208 if (priv->xdp_ring_num && MLX4_EN_EFF_MTU(new_mtu) > FRAG_SZ0) {
2209 en_err(priv, "MTU size:%d requires frags but XDP running\n",
2215 if (netif_running(dev)) {
2216 mutex_lock(&mdev->state_lock);
2217 if (!mdev->device_up) {
2218 /* NIC is probably restarting - let watchdog task reset
2220 en_dbg(DRV, priv, "Change MTU called with card down!?\n");
2222 mlx4_en_stop_port(dev, 1);
2223 err = mlx4_en_start_port(dev);
2225 en_err(priv, "Failed restarting port:%d\n",
2227 queue_work(mdev->workqueue, &priv->watchdog_task);
2230 mutex_unlock(&mdev->state_lock);
2235 static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
2237 struct mlx4_en_priv *priv = netdev_priv(dev);
2238 struct mlx4_en_dev *mdev = priv->mdev;
2239 struct hwtstamp_config config;
2241 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
2244 /* reserved for future extensions */
2248 /* device doesn't support time stamping */
2249 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
2252 /* TX HW timestamp */
2253 switch (config.tx_type) {
2254 case HWTSTAMP_TX_OFF:
2255 case HWTSTAMP_TX_ON:
2261 /* RX HW timestamp */
2262 switch (config.rx_filter) {
2263 case HWTSTAMP_FILTER_NONE:
2265 case HWTSTAMP_FILTER_ALL:
2266 case HWTSTAMP_FILTER_SOME:
2267 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
2268 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
2269 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
2270 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
2271 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
2272 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
2273 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
2274 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
2275 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
2276 case HWTSTAMP_FILTER_PTP_V2_EVENT:
2277 case HWTSTAMP_FILTER_PTP_V2_SYNC:
2278 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
2279 config.rx_filter = HWTSTAMP_FILTER_ALL;
2285 if (mlx4_en_reset_config(dev, config, dev->features)) {
2286 config.tx_type = HWTSTAMP_TX_OFF;
2287 config.rx_filter = HWTSTAMP_FILTER_NONE;
2290 return copy_to_user(ifr->ifr_data, &config,
2291 sizeof(config)) ? -EFAULT : 0;
2294 static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
2296 struct mlx4_en_priv *priv = netdev_priv(dev);
2298 return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config,
2299 sizeof(priv->hwtstamp_config)) ? -EFAULT : 0;
2302 static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2306 return mlx4_en_hwtstamp_set(dev, ifr);
2308 return mlx4_en_hwtstamp_get(dev, ifr);
2314 static netdev_features_t mlx4_en_fix_features(struct net_device *netdev,
2315 netdev_features_t features)
2317 struct mlx4_en_priv *en_priv = netdev_priv(netdev);
2318 struct mlx4_en_dev *mdev = en_priv->mdev;
2320 /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
2321 * enable/disable make sure S-TAG flag is always in same state as
2324 if (features & NETIF_F_HW_VLAN_CTAG_RX &&
2325 !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
2326 features |= NETIF_F_HW_VLAN_STAG_RX;
2328 features &= ~NETIF_F_HW_VLAN_STAG_RX;
2333 static int mlx4_en_set_features(struct net_device *netdev,
2334 netdev_features_t features)
2336 struct mlx4_en_priv *priv = netdev_priv(netdev);
2340 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) {
2341 en_info(priv, "Turn %s RX-FCS\n",
2342 (features & NETIF_F_RXFCS) ? "ON" : "OFF");
2346 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) {
2347 u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0;
2349 en_info(priv, "Turn %s RX-ALL\n",
2350 ignore_fcs_value ? "ON" : "OFF");
2351 ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev,
2352 priv->port, ignore_fcs_value);
2357 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
2358 en_info(priv, "Turn %s RX vlan strip offload\n",
2359 (features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF");
2363 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX))
2364 en_info(priv, "Turn %s TX vlan strip offload\n",
2365 (features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
2367 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX))
2368 en_info(priv, "Turn %s TX S-VLAN strip offload\n",
2369 (features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF");
2371 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) {
2372 en_info(priv, "Turn %s loopback\n",
2373 (features & NETIF_F_LOOPBACK) ? "ON" : "OFF");
2374 mlx4_en_update_loopback_state(netdev, features);
2378 ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config,
2387 static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
2389 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2390 struct mlx4_en_dev *mdev = en_priv->mdev;
2391 u64 mac_u64 = mlx4_mac_to_u64(mac);
2393 if (is_multicast_ether_addr(mac))
2396 return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
2399 static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
2402 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2403 struct mlx4_en_dev *mdev = en_priv->mdev;
2405 return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos,
2409 static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
2412 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2413 struct mlx4_en_dev *mdev = en_priv->mdev;
2415 return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate,
2419 static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
2421 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2422 struct mlx4_en_dev *mdev = en_priv->mdev;
2424 return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting);
2427 static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf)
2429 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2430 struct mlx4_en_dev *mdev = en_priv->mdev;
2432 return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
2435 static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
2437 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2438 struct mlx4_en_dev *mdev = en_priv->mdev;
2440 return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
2443 static int mlx4_en_get_vf_stats(struct net_device *dev, int vf,
2444 struct ifla_vf_stats *vf_stats)
2446 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2447 struct mlx4_en_dev *mdev = en_priv->mdev;
2449 return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats);
2452 #define PORT_ID_BYTE_LEN 8
2453 static int mlx4_en_get_phys_port_id(struct net_device *dev,
2454 struct netdev_phys_item_id *ppid)
2456 struct mlx4_en_priv *priv = netdev_priv(dev);
2457 struct mlx4_dev *mdev = priv->mdev->dev;
2459 u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
2464 ppid->id_len = sizeof(phys_port_id);
2465 for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
2466 ppid->id[i] = phys_port_id & 0xff;
2472 static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
2475 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2478 ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
2482 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2483 VXLAN_STEER_BY_OUTER_MAC, 1);
2486 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2491 priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2493 NETIF_F_TSO | NETIF_F_TSO6 |
2494 NETIF_F_GSO_UDP_TUNNEL |
2495 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2496 NETIF_F_GSO_PARTIAL;
2499 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
2502 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2504 /* unset offloads */
2505 priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2507 NETIF_F_TSO | NETIF_F_TSO6 |
2508 NETIF_F_GSO_UDP_TUNNEL |
2509 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2510 NETIF_F_GSO_PARTIAL);
2512 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2513 VXLAN_STEER_BY_OUTER_MAC, 0);
2515 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2517 priv->vxlan_port = 0;
2520 static void mlx4_en_add_vxlan_port(struct net_device *dev,
2521 struct udp_tunnel_info *ti)
2523 struct mlx4_en_priv *priv = netdev_priv(dev);
2524 __be16 port = ti->port;
2525 __be16 current_port;
2527 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2530 if (ti->sa_family != AF_INET)
2533 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2536 current_port = priv->vxlan_port;
2537 if (current_port && current_port != port) {
2538 en_warn(priv, "vxlan port %d configured, can't add port %d\n",
2539 ntohs(current_port), ntohs(port));
2543 priv->vxlan_port = port;
2544 queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
2547 static void mlx4_en_del_vxlan_port(struct net_device *dev,
2548 struct udp_tunnel_info *ti)
2550 struct mlx4_en_priv *priv = netdev_priv(dev);
2551 __be16 port = ti->port;
2552 __be16 current_port;
2554 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2557 if (ti->sa_family != AF_INET)
2560 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2563 current_port = priv->vxlan_port;
2564 if (current_port != port) {
2565 en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
2569 queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
2572 static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
2573 struct net_device *dev,
2574 netdev_features_t features)
2576 features = vlan_features_check(skb, features);
2577 features = vxlan_features_check(skb, features);
2579 /* The ConnectX-3 doesn't support outer IPv6 checksums but it does
2580 * support inner IPv6 checksums and segmentation so we need to
2581 * strip that feature if this is an IPv6 encapsulated frame.
2583 if (skb->encapsulation &&
2584 (skb->ip_summed == CHECKSUM_PARTIAL)) {
2585 struct mlx4_en_priv *priv = netdev_priv(dev);
2587 if (!priv->vxlan_port ||
2588 (ip_hdr(skb)->version != 4) ||
2589 (udp_hdr(skb)->dest != priv->vxlan_port))
2590 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2596 static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate)
2598 struct mlx4_en_priv *priv = netdev_priv(dev);
2599 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[queue_index];
2600 struct mlx4_update_qp_params params;
2603 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT))
2606 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2607 if (maxrate >> 12) {
2608 params.rate_unit = MLX4_QP_RATE_LIMIT_GBS;
2609 params.rate_val = maxrate / 1000;
2610 } else if (maxrate) {
2611 params.rate_unit = MLX4_QP_RATE_LIMIT_MBS;
2612 params.rate_val = maxrate;
2613 } else { /* zero serves to revoke the QP rate-limitation */
2614 params.rate_unit = 0;
2615 params.rate_val = 0;
2618 err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT,
2623 static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog)
2625 struct mlx4_en_priv *priv = netdev_priv(dev);
2626 struct mlx4_en_dev *mdev = priv->mdev;
2627 struct bpf_prog *old_prog;
2633 xdp_ring_num = prog ? ALIGN(priv->rx_ring_num, MLX4_EN_NUM_UP) : 0;
2635 /* No need to reconfigure buffers when simply swapping the
2636 * program for a new one.
2638 if (priv->xdp_ring_num == xdp_ring_num) {
2640 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2642 return PTR_ERR(prog);
2644 mutex_lock(&mdev->state_lock);
2645 for (i = 0; i < priv->rx_ring_num; i++) {
2646 old_prog = rcu_dereference_protected(
2647 priv->rx_ring[i]->xdp_prog,
2648 lockdep_is_held(&mdev->state_lock));
2649 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2651 bpf_prog_put(old_prog);
2653 mutex_unlock(&mdev->state_lock);
2657 if (priv->num_frags > 1) {
2658 en_err(priv, "Cannot set XDP if MTU requires multiple frags\n");
2662 if (priv->tx_ring_num < xdp_ring_num + MLX4_EN_NUM_UP) {
2664 "Minimum %d tx channels required to run XDP\n",
2665 (xdp_ring_num + MLX4_EN_NUM_UP) / MLX4_EN_NUM_UP);
2670 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2672 return PTR_ERR(prog);
2675 mutex_lock(&mdev->state_lock);
2676 if (priv->port_up) {
2678 mlx4_en_stop_port(dev, 1);
2681 priv->xdp_ring_num = xdp_ring_num;
2682 netif_set_real_num_tx_queues(dev, priv->tx_ring_num -
2683 priv->xdp_ring_num);
2685 for (i = 0; i < priv->rx_ring_num; i++) {
2686 old_prog = rcu_dereference_protected(
2687 priv->rx_ring[i]->xdp_prog,
2688 lockdep_is_held(&mdev->state_lock));
2689 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2691 bpf_prog_put(old_prog);
2695 err = mlx4_en_start_port(dev);
2697 en_err(priv, "Failed starting port %d for XDP change\n",
2699 queue_work(mdev->workqueue, &priv->watchdog_task);
2703 mutex_unlock(&mdev->state_lock);
2707 static bool mlx4_xdp_attached(struct net_device *dev)
2709 struct mlx4_en_priv *priv = netdev_priv(dev);
2711 return !!priv->xdp_ring_num;
2714 static int mlx4_xdp(struct net_device *dev, struct netdev_xdp *xdp)
2716 switch (xdp->command) {
2717 case XDP_SETUP_PROG:
2718 return mlx4_xdp_set(dev, xdp->prog);
2719 case XDP_QUERY_PROG:
2720 xdp->prog_attached = mlx4_xdp_attached(dev);
2727 static const struct net_device_ops mlx4_netdev_ops = {
2728 .ndo_open = mlx4_en_open,
2729 .ndo_stop = mlx4_en_close,
2730 .ndo_start_xmit = mlx4_en_xmit,
2731 .ndo_select_queue = mlx4_en_select_queue,
2732 .ndo_get_stats64 = mlx4_en_get_stats64,
2733 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2734 .ndo_set_mac_address = mlx4_en_set_mac,
2735 .ndo_validate_addr = eth_validate_addr,
2736 .ndo_change_mtu = mlx4_en_change_mtu,
2737 .ndo_do_ioctl = mlx4_en_ioctl,
2738 .ndo_tx_timeout = mlx4_en_tx_timeout,
2739 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2740 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2741 #ifdef CONFIG_NET_POLL_CONTROLLER
2742 .ndo_poll_controller = mlx4_en_netpoll,
2744 .ndo_set_features = mlx4_en_set_features,
2745 .ndo_fix_features = mlx4_en_fix_features,
2746 .ndo_setup_tc = __mlx4_en_setup_tc,
2747 #ifdef CONFIG_RFS_ACCEL
2748 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2750 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2751 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2752 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2753 .ndo_features_check = mlx4_en_features_check,
2754 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2755 .ndo_xdp = mlx4_xdp,
2758 static const struct net_device_ops mlx4_netdev_ops_master = {
2759 .ndo_open = mlx4_en_open,
2760 .ndo_stop = mlx4_en_close,
2761 .ndo_start_xmit = mlx4_en_xmit,
2762 .ndo_select_queue = mlx4_en_select_queue,
2763 .ndo_get_stats64 = mlx4_en_get_stats64,
2764 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2765 .ndo_set_mac_address = mlx4_en_set_mac,
2766 .ndo_validate_addr = eth_validate_addr,
2767 .ndo_change_mtu = mlx4_en_change_mtu,
2768 .ndo_tx_timeout = mlx4_en_tx_timeout,
2769 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2770 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2771 .ndo_set_vf_mac = mlx4_en_set_vf_mac,
2772 .ndo_set_vf_vlan = mlx4_en_set_vf_vlan,
2773 .ndo_set_vf_rate = mlx4_en_set_vf_rate,
2774 .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk,
2775 .ndo_set_vf_link_state = mlx4_en_set_vf_link_state,
2776 .ndo_get_vf_stats = mlx4_en_get_vf_stats,
2777 .ndo_get_vf_config = mlx4_en_get_vf_config,
2778 #ifdef CONFIG_NET_POLL_CONTROLLER
2779 .ndo_poll_controller = mlx4_en_netpoll,
2781 .ndo_set_features = mlx4_en_set_features,
2782 .ndo_fix_features = mlx4_en_fix_features,
2783 .ndo_setup_tc = __mlx4_en_setup_tc,
2784 #ifdef CONFIG_RFS_ACCEL
2785 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2787 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2788 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2789 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2790 .ndo_features_check = mlx4_en_features_check,
2791 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2792 .ndo_xdp = mlx4_xdp,
2795 struct mlx4_en_bond {
2796 struct work_struct work;
2797 struct mlx4_en_priv *priv;
2799 struct mlx4_port_map port_map;
2802 static void mlx4_en_bond_work(struct work_struct *work)
2804 struct mlx4_en_bond *bond = container_of(work,
2805 struct mlx4_en_bond,
2808 struct mlx4_dev *dev = bond->priv->mdev->dev;
2810 if (bond->is_bonded) {
2811 if (!mlx4_is_bonded(dev)) {
2812 err = mlx4_bond(dev);
2814 en_err(bond->priv, "Fail to bond device\n");
2817 err = mlx4_port_map_set(dev, &bond->port_map);
2819 en_err(bond->priv, "Fail to set port map [%d][%d]: %d\n",
2820 bond->port_map.port1,
2821 bond->port_map.port2,
2824 } else if (mlx4_is_bonded(dev)) {
2825 err = mlx4_unbond(dev);
2827 en_err(bond->priv, "Fail to unbond device\n");
2829 dev_put(bond->priv->dev);
2833 static int mlx4_en_queue_bond_work(struct mlx4_en_priv *priv, int is_bonded,
2834 u8 v2p_p1, u8 v2p_p2)
2836 struct mlx4_en_bond *bond = NULL;
2838 bond = kzalloc(sizeof(*bond), GFP_ATOMIC);
2842 INIT_WORK(&bond->work, mlx4_en_bond_work);
2844 bond->is_bonded = is_bonded;
2845 bond->port_map.port1 = v2p_p1;
2846 bond->port_map.port2 = v2p_p2;
2847 dev_hold(priv->dev);
2848 queue_work(priv->mdev->workqueue, &bond->work);
2852 int mlx4_en_netdev_event(struct notifier_block *this,
2853 unsigned long event, void *ptr)
2855 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
2857 struct mlx4_en_dev *mdev;
2858 struct mlx4_dev *dev;
2859 int i, num_eth_ports = 0;
2860 bool do_bond = true;
2861 struct mlx4_en_priv *priv;
2865 if (!net_eq(dev_net(ndev), &init_net))
2868 mdev = container_of(this, struct mlx4_en_dev, nb);
2871 /* Go into this mode only when two network devices set on two ports
2872 * of the same mlx4 device are slaves of the same bonding master
2874 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
2876 if (!port && (mdev->pndev[i] == ndev))
2878 mdev->upper[i] = mdev->pndev[i] ?
2879 netdev_master_upper_dev_get(mdev->pndev[i]) : NULL;
2880 /* condition not met: network device is a slave */
2881 if (!mdev->upper[i])
2883 if (num_eth_ports < 2)
2885 /* condition not met: same master */
2886 if (mdev->upper[i] != mdev->upper[i-1])
2889 /* condition not met: 2 salves */
2890 do_bond = (num_eth_ports == 2) ? do_bond : false;
2892 /* handle only events that come with enough info */
2893 if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port)
2896 priv = netdev_priv(ndev);
2898 struct netdev_notifier_bonding_info *notifier_info = ptr;
2899 struct netdev_bonding_info *bonding_info =
2900 ¬ifier_info->bonding_info;
2902 /* required mode 1, 2 or 4 */
2903 if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) &&
2904 (bonding_info->master.bond_mode != BOND_MODE_XOR) &&
2905 (bonding_info->master.bond_mode != BOND_MODE_8023AD))
2908 /* require exactly 2 slaves */
2909 if (bonding_info->master.num_slaves != 2)
2914 if (bonding_info->master.bond_mode ==
2915 BOND_MODE_ACTIVEBACKUP) {
2916 /* in active-backup mode virtual ports are
2917 * mapped to the physical port of the active
2919 if (bonding_info->slave.state ==
2920 BOND_STATE_BACKUP) {
2928 } else { /* BOND_STATE_ACTIVE */
2937 } else { /* Active-Active */
2938 /* in active-active mode a virtual port is
2939 * mapped to the native physical port if and only
2940 * if the physical port is up */
2941 __s8 link = bonding_info->slave.link;
2947 if ((link == BOND_LINK_UP) ||
2948 (link == BOND_LINK_FAIL)) {
2953 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
2963 mlx4_en_queue_bond_work(priv, do_bond,
2964 v2p_port1, v2p_port2);
2969 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
2970 struct mlx4_en_stats_bitmap *stats_bitmap,
2971 u8 rx_ppp, u8 rx_pause,
2972 u8 tx_ppp, u8 tx_pause)
2974 int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS;
2976 if (!mlx4_is_slave(dev) &&
2977 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) {
2978 mutex_lock(&stats_bitmap->mutex);
2979 bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS);
2982 bitmap_set(stats_bitmap->bitmap, last_i,
2983 NUM_FLOW_PRIORITY_STATS_RX);
2984 last_i += NUM_FLOW_PRIORITY_STATS_RX;
2986 if (rx_pause && !(rx_ppp))
2987 bitmap_set(stats_bitmap->bitmap, last_i,
2989 last_i += NUM_FLOW_STATS_RX;
2992 bitmap_set(stats_bitmap->bitmap, last_i,
2993 NUM_FLOW_PRIORITY_STATS_TX);
2994 last_i += NUM_FLOW_PRIORITY_STATS_TX;
2996 if (tx_pause && !(tx_ppp))
2997 bitmap_set(stats_bitmap->bitmap, last_i,
2999 last_i += NUM_FLOW_STATS_TX;
3001 mutex_unlock(&stats_bitmap->mutex);
3005 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
3006 struct mlx4_en_stats_bitmap *stats_bitmap,
3007 u8 rx_ppp, u8 rx_pause,
3008 u8 tx_ppp, u8 tx_pause)
3012 mutex_init(&stats_bitmap->mutex);
3013 bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS);
3015 if (mlx4_is_slave(dev)) {
3016 bitmap_set(stats_bitmap->bitmap, last_i +
3017 MLX4_FIND_NETDEV_STAT(rx_packets), 1);
3018 bitmap_set(stats_bitmap->bitmap, last_i +
3019 MLX4_FIND_NETDEV_STAT(tx_packets), 1);
3020 bitmap_set(stats_bitmap->bitmap, last_i +
3021 MLX4_FIND_NETDEV_STAT(rx_bytes), 1);
3022 bitmap_set(stats_bitmap->bitmap, last_i +
3023 MLX4_FIND_NETDEV_STAT(tx_bytes), 1);
3024 bitmap_set(stats_bitmap->bitmap, last_i +
3025 MLX4_FIND_NETDEV_STAT(rx_dropped), 1);
3026 bitmap_set(stats_bitmap->bitmap, last_i +
3027 MLX4_FIND_NETDEV_STAT(tx_dropped), 1);
3029 bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS);
3031 last_i += NUM_MAIN_STATS;
3033 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS);
3034 last_i += NUM_PORT_STATS;
3036 if (mlx4_is_master(dev))
3037 bitmap_set(stats_bitmap->bitmap, last_i,
3039 last_i += NUM_PF_STATS;
3041 mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap,
3044 last_i += NUM_FLOW_STATS;
3046 if (!mlx4_is_slave(dev))
3047 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS);
3050 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
3051 struct mlx4_en_port_profile *prof)
3053 struct net_device *dev;
3054 struct mlx4_en_priv *priv;
3058 dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
3059 MAX_TX_RINGS, MAX_RX_RINGS);
3063 netif_set_real_num_tx_queues(dev, prof->tx_ring_num);
3064 netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
3066 SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev);
3067 dev->dev_port = port - 1;
3070 * Initialize driver private data
3073 priv = netdev_priv(dev);
3074 memset(priv, 0, sizeof(struct mlx4_en_priv));
3075 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
3076 spin_lock_init(&priv->stats_lock);
3077 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
3078 INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
3079 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
3080 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
3081 INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
3082 INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
3083 INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
3084 #ifdef CONFIG_RFS_ACCEL
3085 INIT_LIST_HEAD(&priv->filters);
3086 spin_lock_init(&priv->filters_lock);
3091 priv->ddev = &mdev->pdev->dev;
3094 priv->port_up = false;
3095 priv->flags = prof->flags;
3096 priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME;
3097 priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
3098 MLX4_WQE_CTRL_SOLICITED);
3099 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
3100 priv->tx_ring_num = prof->tx_ring_num;
3101 priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK;
3102 netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key));
3104 priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring *) * MAX_TX_RINGS,
3106 if (!priv->tx_ring) {
3110 priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq *) * MAX_TX_RINGS,
3116 priv->rx_ring_num = prof->rx_ring_num;
3117 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
3118 priv->cqe_size = mdev->dev->caps.cqe_size;
3119 priv->mac_index = -1;
3120 priv->msg_enable = MLX4_EN_MSG_LEVEL;
3121 #ifdef CONFIG_MLX4_EN_DCB
3122 if (!mlx4_is_slave(priv->mdev->dev)) {
3123 priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST |
3124 DCB_CAP_DCBX_VER_IEEE;
3125 priv->flags |= MLX4_EN_DCB_ENABLED;
3126 priv->cee_config.pfc_state = false;
3128 for (i = 0; i < MLX4_EN_NUM_UP; i++)
3129 priv->cee_config.dcb_pfc[i] = pfc_disabled;
3131 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
3132 dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
3134 en_info(priv, "enabling only PFC DCB ops\n");
3135 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
3140 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
3141 INIT_HLIST_HEAD(&priv->mac_hash[i]);
3143 /* Query for default mac and max mtu */
3144 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
3146 if (mdev->dev->caps.rx_checksum_flags_port[priv->port] &
3147 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP)
3148 priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP;
3150 /* Set default MAC */
3151 dev->addr_len = ETH_ALEN;
3152 mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
3153 if (!is_valid_ether_addr(dev->dev_addr)) {
3154 en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
3155 priv->port, dev->dev_addr);
3158 } else if (mlx4_is_slave(priv->mdev->dev) &&
3159 (priv->mdev->dev->port_random_macs & 1 << priv->port)) {
3160 /* Random MAC was assigned in mlx4_slave_cap
3161 * in mlx4_core module
3163 dev->addr_assign_type |= NET_ADDR_RANDOM;
3164 en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr);
3167 memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
3169 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
3170 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
3171 err = mlx4_en_alloc_resources(priv);
3175 /* Initialize time stamping config */
3176 priv->hwtstamp_config.flags = 0;
3177 priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
3178 priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
3180 /* Allocate page for receive rings */
3181 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
3184 en_err(priv, "Failed to allocate page for rx qps\n");
3187 priv->allocated = 1;
3190 * Initialize netdev entry points
3192 if (mlx4_is_master(priv->mdev->dev))
3193 dev->netdev_ops = &mlx4_netdev_ops_master;
3195 dev->netdev_ops = &mlx4_netdev_ops;
3196 dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
3197 netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
3198 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
3200 dev->ethtool_ops = &mlx4_en_ethtool_ops;
3203 * Set driver features
3205 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3206 if (mdev->LSO_support)
3207 dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
3209 dev->vlan_features = dev->hw_features;
3211 dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
3212 dev->features = dev->hw_features | NETIF_F_HIGHDMA |
3213 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
3214 NETIF_F_HW_VLAN_CTAG_FILTER;
3215 dev->hw_features |= NETIF_F_LOOPBACK |
3216 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
3218 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
3219 dev->features |= NETIF_F_HW_VLAN_STAG_RX |
3220 NETIF_F_HW_VLAN_STAG_FILTER;
3221 dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX;
3224 if (mlx4_is_slave(mdev->dev)) {
3225 bool vlan_offload_disabled;
3228 err = get_phv_bit(mdev->dev, port, &phv);
3230 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3231 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
3233 err = mlx4_get_is_vlan_offload_disabled(mdev->dev, port,
3234 &vlan_offload_disabled);
3235 if (!err && vlan_offload_disabled) {
3236 dev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3237 NETIF_F_HW_VLAN_CTAG_RX |
3238 NETIF_F_HW_VLAN_STAG_TX |
3239 NETIF_F_HW_VLAN_STAG_RX);
3240 dev->features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3241 NETIF_F_HW_VLAN_CTAG_RX |
3242 NETIF_F_HW_VLAN_STAG_TX |
3243 NETIF_F_HW_VLAN_STAG_RX);
3246 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
3247 !(mdev->dev->caps.flags2 &
3248 MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
3249 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3252 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
3253 dev->hw_features |= NETIF_F_RXFCS;
3255 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)
3256 dev->hw_features |= NETIF_F_RXALL;
3258 if (mdev->dev->caps.steering_mode ==
3259 MLX4_STEERING_MODE_DEVICE_MANAGED &&
3260 mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC)
3261 dev->hw_features |= NETIF_F_NTUPLE;
3263 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
3264 dev->priv_flags |= IFF_UNICAST_FLT;
3266 /* Setting a default hash function value */
3267 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) {
3268 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3269 } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) {
3270 priv->rss_hash_fn = ETH_RSS_HASH_XOR;
3273 "No RSS hash capabilities exposed, using Toeplitz\n");
3274 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3277 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3278 dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3279 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3280 NETIF_F_GSO_PARTIAL;
3281 dev->features |= NETIF_F_GSO_UDP_TUNNEL |
3282 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3283 NETIF_F_GSO_PARTIAL;
3284 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
3287 /* MTU range: 46 - hw-specific max */
3288 dev->min_mtu = MLX4_EN_MIN_MTU;
3289 dev->max_mtu = priv->max_mtu;
3291 mdev->pndev[port] = dev;
3292 mdev->upper[port] = NULL;
3294 netif_carrier_off(dev);
3295 mlx4_en_set_default_moderation(priv);
3297 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
3298 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
3300 mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
3302 /* Configure port */
3303 mlx4_en_calc_rx_buf(dev);
3304 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
3305 priv->rx_skb_size + ETH_FCS_LEN,
3306 prof->tx_pause, prof->tx_ppp,
3307 prof->rx_pause, prof->rx_ppp);
3309 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
3314 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3315 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
3317 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
3324 en_warn(priv, "Initializing port\n");
3325 err = mlx4_INIT_PORT(mdev->dev, priv->port);
3327 en_err(priv, "Failed Initializing port\n");
3330 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
3332 /* Initialize time stamp mechanism */
3333 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
3334 mlx4_en_init_timestamp(mdev);
3336 queue_delayed_work(mdev->workqueue, &priv->service_task,
3337 SERVICE_TASK_DELAY);
3339 mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap,
3340 mdev->profile.prof[priv->port].rx_ppp,
3341 mdev->profile.prof[priv->port].rx_pause,
3342 mdev->profile.prof[priv->port].tx_ppp,
3343 mdev->profile.prof[priv->port].tx_pause);
3345 err = register_netdev(dev);
3347 en_err(priv, "Netdev registration failed for port %d\n", port);
3351 priv->registered = 1;
3352 devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port),
3358 mlx4_en_destroy_netdev(dev);
3362 int mlx4_en_reset_config(struct net_device *dev,
3363 struct hwtstamp_config ts_config,
3364 netdev_features_t features)
3366 struct mlx4_en_priv *priv = netdev_priv(dev);
3367 struct mlx4_en_dev *mdev = priv->mdev;
3368 struct mlx4_en_port_profile new_prof;
3369 struct mlx4_en_priv *tmp;
3373 if (priv->hwtstamp_config.tx_type == ts_config.tx_type &&
3374 priv->hwtstamp_config.rx_filter == ts_config.rx_filter &&
3375 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3376 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS))
3377 return 0; /* Nothing to change */
3379 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3380 (features & NETIF_F_HW_VLAN_CTAG_RX) &&
3381 (priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) {
3382 en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3386 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
3390 mutex_lock(&mdev->state_lock);
3392 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
3393 memcpy(&new_prof.hwtstamp_config, &ts_config, sizeof(ts_config));
3395 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
3399 if (priv->port_up) {
3401 mlx4_en_stop_port(dev, 1);
3404 en_warn(priv, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3405 ts_config.rx_filter,
3406 !!(features & NETIF_F_HW_VLAN_CTAG_RX));
3408 mlx4_en_safe_replace_resources(priv, tmp);
3410 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
3411 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3412 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3414 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3415 } else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) {
3416 /* RX time-stamping is OFF, update the RX vlan offload
3417 * to the latest wanted state
3419 if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX)
3420 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3422 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3425 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) {
3426 if (features & NETIF_F_RXFCS)
3427 dev->features |= NETIF_F_RXFCS;
3429 dev->features &= ~NETIF_F_RXFCS;
3432 /* RX vlan offload and RX time-stamping can't co-exist !
3433 * Regardless of the caller's choice,
3434 * Turn Off RX vlan offload in case of time-stamping is ON
3436 if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) {
3437 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
3438 en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n");
3439 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3443 err = mlx4_en_start_port(dev);
3445 en_err(priv, "Failed starting port\n");
3449 mutex_unlock(&mdev->state_lock);
3452 netdev_features_change(dev);