2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/etherdevice.h>
35 #include <linux/tcp.h>
36 #include <linux/if_vlan.h>
37 #include <linux/delay.h>
38 #include <linux/slab.h>
39 #include <linux/hash.h>
41 #include <net/busy_poll.h>
42 #include <net/vxlan.h>
44 #include <linux/mlx4/driver.h>
45 #include <linux/mlx4/device.h>
46 #include <linux/mlx4/cmd.h>
47 #include <linux/mlx4/cq.h>
52 int mlx4_en_setup_tc(struct net_device *dev, u8 up)
54 struct mlx4_en_priv *priv = netdev_priv(dev);
56 unsigned int offset = 0;
58 if (up && up != MLX4_EN_NUM_UP)
61 netdev_set_num_tc(dev, up);
63 /* Partition Tx queues evenly amongst UP's */
64 for (i = 0; i < up; i++) {
65 netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
66 offset += priv->num_tx_rings_p_up;
72 #ifdef CONFIG_NET_RX_BUSY_POLL
73 /* must be called with local_bh_disable()d */
74 static int mlx4_en_low_latency_recv(struct napi_struct *napi)
76 struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
77 struct net_device *dev = cq->dev;
78 struct mlx4_en_priv *priv = netdev_priv(dev);
79 struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring];
83 return LL_FLUSH_FAILED;
85 if (!mlx4_en_cq_lock_poll(cq))
88 done = mlx4_en_process_rx_cq(dev, cq, 4);
90 rx_ring->cleaned += done;
94 mlx4_en_cq_unlock_poll(cq);
98 #endif /* CONFIG_NET_RX_BUSY_POLL */
100 #ifdef CONFIG_RFS_ACCEL
102 struct mlx4_en_filter {
103 struct list_head next;
104 struct work_struct work;
113 struct mlx4_en_priv *priv;
114 u32 flow_id; /* RFS infrastructure id */
115 int id; /* mlx4_en driver id */
116 u64 reg_id; /* Flow steering API id */
117 u8 activated; /* Used to prevent expiry before filter
120 struct hlist_node filter_chain;
123 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
125 static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
129 return MLX4_NET_TRANS_RULE_ID_UDP;
131 return MLX4_NET_TRANS_RULE_ID_TCP;
133 return MLX4_NET_TRANS_RULE_NUM;
137 static void mlx4_en_filter_work(struct work_struct *work)
139 struct mlx4_en_filter *filter = container_of(work,
140 struct mlx4_en_filter,
142 struct mlx4_en_priv *priv = filter->priv;
143 struct mlx4_spec_list spec_tcp_udp = {
144 .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
147 .dst_port = filter->dst_port,
148 .dst_port_msk = (__force __be16)-1,
149 .src_port = filter->src_port,
150 .src_port_msk = (__force __be16)-1,
154 struct mlx4_spec_list spec_ip = {
155 .id = MLX4_NET_TRANS_RULE_ID_IPV4,
158 .dst_ip = filter->dst_ip,
159 .dst_ip_msk = (__force __be32)-1,
160 .src_ip = filter->src_ip,
161 .src_ip_msk = (__force __be32)-1,
165 struct mlx4_spec_list spec_eth = {
166 .id = MLX4_NET_TRANS_RULE_ID_ETH,
168 struct mlx4_net_trans_rule rule = {
169 .list = LIST_HEAD_INIT(rule.list),
170 .queue_mode = MLX4_NET_TRANS_Q_LIFO,
173 .promisc_mode = MLX4_FS_REGULAR,
175 .priority = MLX4_DOMAIN_RFS,
178 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
180 if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) {
181 en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
185 list_add_tail(&spec_eth.list, &rule.list);
186 list_add_tail(&spec_ip.list, &rule.list);
187 list_add_tail(&spec_tcp_udp.list, &rule.list);
189 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
190 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
191 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
193 filter->activated = 0;
195 if (filter->reg_id) {
196 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
197 if (rc && rc != -ENOENT)
198 en_err(priv, "Error detaching flow. rc = %d\n", rc);
201 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
203 en_err(priv, "Error attaching flow. err = %d\n", rc);
206 mlx4_en_filter_rfs_expire(priv);
208 filter->activated = 1;
211 static inline struct hlist_head *
212 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
213 __be16 src_port, __be16 dst_port)
218 l = (__force unsigned long)src_port |
219 ((__force unsigned long)dst_port << 2);
220 l ^= (__force unsigned long)(src_ip ^ dst_ip);
222 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
224 return &priv->filter_hash[bucket_idx];
227 static struct mlx4_en_filter *
228 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
229 __be32 dst_ip, u8 ip_proto, __be16 src_port,
230 __be16 dst_port, u32 flow_id)
232 struct mlx4_en_filter *filter = NULL;
234 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
239 filter->rxq_index = rxq_index;
240 INIT_WORK(&filter->work, mlx4_en_filter_work);
242 filter->src_ip = src_ip;
243 filter->dst_ip = dst_ip;
244 filter->ip_proto = ip_proto;
245 filter->src_port = src_port;
246 filter->dst_port = dst_port;
248 filter->flow_id = flow_id;
250 filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
252 list_add_tail(&filter->next, &priv->filters);
253 hlist_add_head(&filter->filter_chain,
254 filter_hash_bucket(priv, src_ip, dst_ip, src_port,
260 static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
262 struct mlx4_en_priv *priv = filter->priv;
265 list_del(&filter->next);
267 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
268 if (rc && rc != -ENOENT)
269 en_err(priv, "Error detaching flow. rc = %d\n", rc);
274 static inline struct mlx4_en_filter *
275 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
276 u8 ip_proto, __be16 src_port, __be16 dst_port)
278 struct mlx4_en_filter *filter;
279 struct mlx4_en_filter *ret = NULL;
281 hlist_for_each_entry(filter,
282 filter_hash_bucket(priv, src_ip, dst_ip,
285 if (filter->src_ip == src_ip &&
286 filter->dst_ip == dst_ip &&
287 filter->ip_proto == ip_proto &&
288 filter->src_port == src_port &&
289 filter->dst_port == dst_port) {
299 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
300 u16 rxq_index, u32 flow_id)
302 struct mlx4_en_priv *priv = netdev_priv(net_dev);
303 struct mlx4_en_filter *filter;
304 const struct iphdr *ip;
311 int nhoff = skb_network_offset(skb);
314 if (skb->protocol != htons(ETH_P_IP))
315 return -EPROTONOSUPPORT;
317 ip = (const struct iphdr *)(skb->data + nhoff);
318 if (ip_is_fragment(ip))
319 return -EPROTONOSUPPORT;
321 if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
322 return -EPROTONOSUPPORT;
323 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
325 ip_proto = ip->protocol;
331 spin_lock_bh(&priv->filters_lock);
332 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
335 if (filter->rxq_index == rxq_index)
338 filter->rxq_index = rxq_index;
340 filter = mlx4_en_filter_alloc(priv, rxq_index,
341 src_ip, dst_ip, ip_proto,
342 src_port, dst_port, flow_id);
349 queue_work(priv->mdev->workqueue, &filter->work);
354 spin_unlock_bh(&priv->filters_lock);
359 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
361 struct mlx4_en_filter *filter, *tmp;
364 spin_lock_bh(&priv->filters_lock);
365 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
366 list_move(&filter->next, &del_list);
367 hlist_del(&filter->filter_chain);
369 spin_unlock_bh(&priv->filters_lock);
371 list_for_each_entry_safe(filter, tmp, &del_list, next) {
372 cancel_work_sync(&filter->work);
373 mlx4_en_filter_free(filter);
377 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
379 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
383 spin_lock_bh(&priv->filters_lock);
384 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
385 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
388 if (filter->activated &&
389 !work_pending(&filter->work) &&
390 rps_may_expire_flow(priv->dev,
391 filter->rxq_index, filter->flow_id,
393 list_move(&filter->next, &del_list);
394 hlist_del(&filter->filter_chain);
396 last_filter = filter;
401 if (last_filter && (&last_filter->next != priv->filters.next))
402 list_move(&priv->filters, &last_filter->next);
404 spin_unlock_bh(&priv->filters_lock);
406 list_for_each_entry_safe(filter, tmp, &del_list, next)
407 mlx4_en_filter_free(filter);
411 static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
412 __be16 proto, u16 vid)
414 struct mlx4_en_priv *priv = netdev_priv(dev);
415 struct mlx4_en_dev *mdev = priv->mdev;
419 en_dbg(HW, priv, "adding VLAN:%d\n", vid);
421 set_bit(vid, priv->active_vlans);
423 /* Add VID to port VLAN filter */
424 mutex_lock(&mdev->state_lock);
425 if (mdev->device_up && priv->port_up) {
426 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
428 en_err(priv, "Failed configuring VLAN filter\n");
430 if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
431 en_dbg(HW, priv, "failed adding vlan %d\n", vid);
432 mutex_unlock(&mdev->state_lock);
437 static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
438 __be16 proto, u16 vid)
440 struct mlx4_en_priv *priv = netdev_priv(dev);
441 struct mlx4_en_dev *mdev = priv->mdev;
444 en_dbg(HW, priv, "Killing VID:%d\n", vid);
446 clear_bit(vid, priv->active_vlans);
448 /* Remove VID from port VLAN filter */
449 mutex_lock(&mdev->state_lock);
450 mlx4_unregister_vlan(mdev->dev, priv->port, vid);
452 if (mdev->device_up && priv->port_up) {
453 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
455 en_err(priv, "Failed configuring VLAN filter\n");
457 mutex_unlock(&mdev->state_lock);
462 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
465 for (i = ETH_ALEN - 1; i >= 0; --i) {
466 dst_mac[i] = src_mac & 0xff;
469 memset(&dst_mac[ETH_ALEN], 0, 2);
473 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr,
474 int qpn, u64 *reg_id)
478 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
479 priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
480 return 0; /* do nothing */
482 err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
483 MLX4_DOMAIN_NIC, reg_id);
485 en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
488 en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id);
493 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
494 unsigned char *mac, int *qpn, u64 *reg_id)
496 struct mlx4_en_dev *mdev = priv->mdev;
497 struct mlx4_dev *dev = mdev->dev;
500 switch (dev->caps.steering_mode) {
501 case MLX4_STEERING_MODE_B0: {
506 memcpy(&gid[10], mac, ETH_ALEN);
509 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
512 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
513 struct mlx4_spec_list spec_eth = { {NULL} };
514 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
516 struct mlx4_net_trans_rule rule = {
517 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
520 .promisc_mode = MLX4_FS_REGULAR,
521 .priority = MLX4_DOMAIN_NIC,
524 rule.port = priv->port;
526 INIT_LIST_HEAD(&rule.list);
528 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
529 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
530 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
531 list_add_tail(&spec_eth.list, &rule.list);
533 err = mlx4_flow_attach(dev, &rule, reg_id);
540 en_warn(priv, "Failed Attaching Unicast\n");
545 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
546 unsigned char *mac, int qpn, u64 reg_id)
548 struct mlx4_en_dev *mdev = priv->mdev;
549 struct mlx4_dev *dev = mdev->dev;
551 switch (dev->caps.steering_mode) {
552 case MLX4_STEERING_MODE_B0: {
557 memcpy(&gid[10], mac, ETH_ALEN);
560 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
563 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
564 mlx4_flow_detach(dev, reg_id);
568 en_err(priv, "Invalid steering mode.\n");
572 static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
574 struct mlx4_en_dev *mdev = priv->mdev;
575 struct mlx4_dev *dev = mdev->dev;
576 struct mlx4_mac_entry *entry;
580 int *qpn = &priv->base_qpn;
581 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
583 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
584 priv->dev->dev_addr);
585 index = mlx4_register_mac(dev, priv->port, mac);
588 en_err(priv, "Failed adding MAC: %pM\n",
589 priv->dev->dev_addr);
593 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
594 int base_qpn = mlx4_get_base_qpn(dev, priv->port);
595 *qpn = base_qpn + index;
599 err = mlx4_qp_reserve_range(dev, 1, 1, qpn, MLX4_RESERVE_A0_QP);
600 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
602 en_err(priv, "Failed to reserve qp for mac registration\n");
606 err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
610 err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn,
611 &priv->tunnel_reg_id);
615 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
620 memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
621 memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
622 entry->reg_id = reg_id;
624 hlist_add_head_rcu(&entry->hlist,
625 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
630 if (priv->tunnel_reg_id)
631 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
633 mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
636 mlx4_qp_release_range(dev, *qpn, 1);
639 mlx4_unregister_mac(dev, priv->port, mac);
643 static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
645 struct mlx4_en_dev *mdev = priv->mdev;
646 struct mlx4_dev *dev = mdev->dev;
647 int qpn = priv->base_qpn;
650 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
651 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
652 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
653 priv->dev->dev_addr);
654 mlx4_unregister_mac(dev, priv->port, mac);
656 struct mlx4_mac_entry *entry;
657 struct hlist_node *tmp;
658 struct hlist_head *bucket;
661 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
662 bucket = &priv->mac_hash[i];
663 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
664 mac = mlx4_mac_to_u64(entry->mac);
665 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
667 mlx4_en_uc_steer_release(priv, entry->mac,
670 mlx4_unregister_mac(dev, priv->port, mac);
671 hlist_del_rcu(&entry->hlist);
672 kfree_rcu(entry, rcu);
676 if (priv->tunnel_reg_id) {
677 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
678 priv->tunnel_reg_id = 0;
681 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
683 mlx4_qp_release_range(dev, qpn, 1);
684 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
688 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
689 unsigned char *new_mac, unsigned char *prev_mac)
691 struct mlx4_en_dev *mdev = priv->mdev;
692 struct mlx4_dev *dev = mdev->dev;
694 u64 new_mac_u64 = mlx4_mac_to_u64(new_mac);
696 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
697 struct hlist_head *bucket;
698 unsigned int mac_hash;
699 struct mlx4_mac_entry *entry;
700 struct hlist_node *tmp;
701 u64 prev_mac_u64 = mlx4_mac_to_u64(prev_mac);
703 bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
704 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
705 if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
706 mlx4_en_uc_steer_release(priv, entry->mac,
708 mlx4_unregister_mac(dev, priv->port,
710 hlist_del_rcu(&entry->hlist);
712 memcpy(entry->mac, new_mac, ETH_ALEN);
714 mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
715 hlist_add_head_rcu(&entry->hlist,
716 &priv->mac_hash[mac_hash]);
717 mlx4_register_mac(dev, priv->port, new_mac_u64);
718 err = mlx4_en_uc_steer_add(priv, new_mac,
723 if (priv->tunnel_reg_id) {
724 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
725 priv->tunnel_reg_id = 0;
727 err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn,
728 &priv->tunnel_reg_id);
735 return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
738 static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
739 unsigned char new_mac[ETH_ALEN + 2])
744 /* Remove old MAC and insert the new one */
745 err = mlx4_en_replace_mac(priv, priv->base_qpn,
746 new_mac, priv->current_mac);
748 en_err(priv, "Failed changing HW MAC address\n");
750 en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
753 memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
758 static int mlx4_en_set_mac(struct net_device *dev, void *addr)
760 struct mlx4_en_priv *priv = netdev_priv(dev);
761 struct mlx4_en_dev *mdev = priv->mdev;
762 struct sockaddr *saddr = addr;
763 unsigned char new_mac[ETH_ALEN + 2];
766 if (!is_valid_ether_addr(saddr->sa_data))
767 return -EADDRNOTAVAIL;
769 mutex_lock(&mdev->state_lock);
770 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
771 err = mlx4_en_do_set_mac(priv, new_mac);
773 memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
774 mutex_unlock(&mdev->state_lock);
779 static void mlx4_en_clear_list(struct net_device *dev)
781 struct mlx4_en_priv *priv = netdev_priv(dev);
782 struct mlx4_en_mc_list *tmp, *mc_to_del;
784 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
785 list_del(&mc_to_del->list);
790 static void mlx4_en_cache_mclist(struct net_device *dev)
792 struct mlx4_en_priv *priv = netdev_priv(dev);
793 struct netdev_hw_addr *ha;
794 struct mlx4_en_mc_list *tmp;
796 mlx4_en_clear_list(dev);
797 netdev_for_each_mc_addr(ha, dev) {
798 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
800 mlx4_en_clear_list(dev);
803 memcpy(tmp->addr, ha->addr, ETH_ALEN);
804 list_add_tail(&tmp->list, &priv->mc_list);
808 static void update_mclist_flags(struct mlx4_en_priv *priv,
809 struct list_head *dst,
810 struct list_head *src)
812 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
815 /* Find all the entries that should be removed from dst,
816 * These are the entries that are not found in src
818 list_for_each_entry(dst_tmp, dst, list) {
820 list_for_each_entry(src_tmp, src, list) {
821 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
827 dst_tmp->action = MCLIST_REM;
830 /* Add entries that exist in src but not in dst
831 * mark them as need to add
833 list_for_each_entry(src_tmp, src, list) {
835 list_for_each_entry(dst_tmp, dst, list) {
836 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
837 dst_tmp->action = MCLIST_NONE;
843 new_mc = kmemdup(src_tmp,
844 sizeof(struct mlx4_en_mc_list),
849 new_mc->action = MCLIST_ADD;
850 list_add_tail(&new_mc->list, dst);
855 static void mlx4_en_set_rx_mode(struct net_device *dev)
857 struct mlx4_en_priv *priv = netdev_priv(dev);
862 queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
865 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
866 struct mlx4_en_dev *mdev)
870 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
871 if (netif_msg_rx_status(priv))
872 en_warn(priv, "Entering promiscuous mode\n");
873 priv->flags |= MLX4_EN_FLAG_PROMISC;
875 /* Enable promiscouos mode */
876 switch (mdev->dev->caps.steering_mode) {
877 case MLX4_STEERING_MODE_DEVICE_MANAGED:
878 err = mlx4_flow_steer_promisc_add(mdev->dev,
881 MLX4_FS_ALL_DEFAULT);
883 en_err(priv, "Failed enabling promiscuous mode\n");
884 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
887 case MLX4_STEERING_MODE_B0:
888 err = mlx4_unicast_promisc_add(mdev->dev,
892 en_err(priv, "Failed enabling unicast promiscuous mode\n");
894 /* Add the default qp number as multicast
897 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
898 err = mlx4_multicast_promisc_add(mdev->dev,
902 en_err(priv, "Failed enabling multicast promiscuous mode\n");
903 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
907 case MLX4_STEERING_MODE_A0:
908 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
913 en_err(priv, "Failed enabling promiscuous mode\n");
917 /* Disable port multicast filter (unconditionally) */
918 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
919 0, MLX4_MCAST_DISABLE);
921 en_err(priv, "Failed disabling multicast filter\n");
925 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
926 struct mlx4_en_dev *mdev)
930 if (netif_msg_rx_status(priv))
931 en_warn(priv, "Leaving promiscuous mode\n");
932 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
934 /* Disable promiscouos mode */
935 switch (mdev->dev->caps.steering_mode) {
936 case MLX4_STEERING_MODE_DEVICE_MANAGED:
937 err = mlx4_flow_steer_promisc_remove(mdev->dev,
939 MLX4_FS_ALL_DEFAULT);
941 en_err(priv, "Failed disabling promiscuous mode\n");
942 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
945 case MLX4_STEERING_MODE_B0:
946 err = mlx4_unicast_promisc_remove(mdev->dev,
950 en_err(priv, "Failed disabling unicast promiscuous mode\n");
951 /* Disable Multicast promisc */
952 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
953 err = mlx4_multicast_promisc_remove(mdev->dev,
957 en_err(priv, "Failed disabling multicast promiscuous mode\n");
958 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
962 case MLX4_STEERING_MODE_A0:
963 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
967 en_err(priv, "Failed disabling promiscuous mode\n");
972 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
973 struct net_device *dev,
974 struct mlx4_en_dev *mdev)
976 struct mlx4_en_mc_list *mclist, *tmp;
978 u8 mc_list[16] = {0};
981 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
982 if (dev->flags & IFF_ALLMULTI) {
983 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
984 0, MLX4_MCAST_DISABLE);
986 en_err(priv, "Failed disabling multicast filter\n");
988 /* Add the default qp number as multicast promisc */
989 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
990 switch (mdev->dev->caps.steering_mode) {
991 case MLX4_STEERING_MODE_DEVICE_MANAGED:
992 err = mlx4_flow_steer_promisc_add(mdev->dev,
998 case MLX4_STEERING_MODE_B0:
999 err = mlx4_multicast_promisc_add(mdev->dev,
1004 case MLX4_STEERING_MODE_A0:
1008 en_err(priv, "Failed entering multicast promisc mode\n");
1009 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
1012 /* Disable Multicast promisc */
1013 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1014 switch (mdev->dev->caps.steering_mode) {
1015 case MLX4_STEERING_MODE_DEVICE_MANAGED:
1016 err = mlx4_flow_steer_promisc_remove(mdev->dev,
1018 MLX4_FS_MC_DEFAULT);
1021 case MLX4_STEERING_MODE_B0:
1022 err = mlx4_multicast_promisc_remove(mdev->dev,
1027 case MLX4_STEERING_MODE_A0:
1031 en_err(priv, "Failed disabling multicast promiscuous mode\n");
1032 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1035 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
1036 0, MLX4_MCAST_DISABLE);
1038 en_err(priv, "Failed disabling multicast filter\n");
1040 /* Flush mcast filter and init it with broadcast address */
1041 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
1042 1, MLX4_MCAST_CONFIG);
1044 /* Update multicast list - we cache all addresses so they won't
1045 * change while HW is updated holding the command semaphor */
1046 netif_addr_lock_bh(dev);
1047 mlx4_en_cache_mclist(dev);
1048 netif_addr_unlock_bh(dev);
1049 list_for_each_entry(mclist, &priv->mc_list, list) {
1050 mcast_addr = mlx4_mac_to_u64(mclist->addr);
1051 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
1052 mcast_addr, 0, MLX4_MCAST_CONFIG);
1054 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
1055 0, MLX4_MCAST_ENABLE);
1057 en_err(priv, "Failed enabling multicast filter\n");
1059 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
1060 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1061 if (mclist->action == MCLIST_REM) {
1062 /* detach this address and delete from list */
1063 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1064 mc_list[5] = priv->port;
1065 err = mlx4_multicast_detach(mdev->dev,
1066 &priv->rss_map.indir_qp,
1071 en_err(priv, "Fail to detach multicast address\n");
1073 if (mclist->tunnel_reg_id) {
1074 err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id);
1076 en_err(priv, "Failed to detach multicast address\n");
1079 /* remove from list */
1080 list_del(&mclist->list);
1082 } else if (mclist->action == MCLIST_ADD) {
1083 /* attach the address */
1084 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1085 /* needed for B0 steering support */
1086 mc_list[5] = priv->port;
1087 err = mlx4_multicast_attach(mdev->dev,
1088 &priv->rss_map.indir_qp,
1094 en_err(priv, "Fail to attach multicast address\n");
1096 err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn,
1097 &mclist->tunnel_reg_id);
1099 en_err(priv, "Failed to attach multicast address\n");
1105 static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
1106 struct net_device *dev,
1107 struct mlx4_en_dev *mdev)
1109 struct netdev_hw_addr *ha;
1110 struct mlx4_mac_entry *entry;
1111 struct hlist_node *tmp;
1115 struct hlist_head *bucket;
1120 /* Note that we do not need to protect our mac_hash traversal with rcu,
1121 * since all modification code is protected by mdev->state_lock
1124 /* find what to remove */
1125 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1126 bucket = &priv->mac_hash[i];
1127 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1129 netdev_for_each_uc_addr(ha, dev) {
1130 if (ether_addr_equal_64bits(entry->mac,
1137 /* MAC address of the port is not in uc list */
1138 if (ether_addr_equal_64bits(entry->mac,
1143 mac = mlx4_mac_to_u64(entry->mac);
1144 mlx4_en_uc_steer_release(priv, entry->mac,
1147 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1149 hlist_del_rcu(&entry->hlist);
1150 kfree_rcu(entry, rcu);
1151 en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
1152 entry->mac, priv->port);
1158 /* if we didn't remove anything, there is no use in trying to add
1159 * again once we are in a forced promisc mode state
1161 if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
1164 prev_flags = priv->flags;
1165 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
1167 /* find what to add */
1168 netdev_for_each_uc_addr(ha, dev) {
1170 bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
1171 hlist_for_each_entry(entry, bucket, hlist) {
1172 if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
1179 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1181 en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
1182 ha->addr, priv->port);
1183 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1186 mac = mlx4_mac_to_u64(ha->addr);
1187 memcpy(entry->mac, ha->addr, ETH_ALEN);
1188 err = mlx4_register_mac(mdev->dev, priv->port, mac);
1190 en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
1191 ha->addr, priv->port, err);
1193 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1196 err = mlx4_en_uc_steer_add(priv, ha->addr,
1200 en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
1201 ha->addr, priv->port, err);
1202 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1204 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1207 unsigned int mac_hash;
1208 en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
1209 ha->addr, priv->port);
1210 mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
1211 bucket = &priv->mac_hash[mac_hash];
1212 hlist_add_head_rcu(&entry->hlist, bucket);
1217 if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1218 en_warn(priv, "Forcing promiscuous mode on port:%d\n",
1220 } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1221 en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
1226 static void mlx4_en_do_set_rx_mode(struct work_struct *work)
1228 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1230 struct mlx4_en_dev *mdev = priv->mdev;
1231 struct net_device *dev = priv->dev;
1233 mutex_lock(&mdev->state_lock);
1234 if (!mdev->device_up) {
1235 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
1238 if (!priv->port_up) {
1239 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
1243 if (!netif_carrier_ok(dev)) {
1244 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
1245 if (priv->port_state.link_state) {
1246 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
1247 netif_carrier_on(dev);
1248 en_dbg(LINK, priv, "Link Up\n");
1253 if (dev->priv_flags & IFF_UNICAST_FLT)
1254 mlx4_en_do_uc_filter(priv, dev, mdev);
1256 /* Promsicuous mode: disable all filters */
1257 if ((dev->flags & IFF_PROMISC) ||
1258 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
1259 mlx4_en_set_promisc_mode(priv, mdev);
1263 /* Not in promiscuous mode */
1264 if (priv->flags & MLX4_EN_FLAG_PROMISC)
1265 mlx4_en_clear_promisc_mode(priv, mdev);
1267 mlx4_en_do_multicast(priv, dev, mdev);
1269 mutex_unlock(&mdev->state_lock);
1272 #ifdef CONFIG_NET_POLL_CONTROLLER
1273 static void mlx4_en_netpoll(struct net_device *dev)
1275 struct mlx4_en_priv *priv = netdev_priv(dev);
1276 struct mlx4_en_cq *cq;
1279 for (i = 0; i < priv->rx_ring_num; i++) {
1280 cq = priv->rx_cq[i];
1281 napi_schedule(&cq->napi);
1286 static void mlx4_en_tx_timeout(struct net_device *dev)
1288 struct mlx4_en_priv *priv = netdev_priv(dev);
1289 struct mlx4_en_dev *mdev = priv->mdev;
1292 if (netif_msg_timer(priv))
1293 en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
1295 for (i = 0; i < priv->tx_ring_num; i++) {
1296 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
1298 en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1299 i, priv->tx_ring[i]->qpn, priv->tx_ring[i]->cqn,
1300 priv->tx_ring[i]->cons, priv->tx_ring[i]->prod);
1303 priv->port_stats.tx_timeout++;
1304 en_dbg(DRV, priv, "Scheduling watchdog\n");
1305 queue_work(mdev->workqueue, &priv->watchdog_task);
1309 static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev)
1311 struct mlx4_en_priv *priv = netdev_priv(dev);
1313 spin_lock_bh(&priv->stats_lock);
1314 memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats));
1315 spin_unlock_bh(&priv->stats_lock);
1317 return &priv->ret_stats;
1320 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
1322 struct mlx4_en_cq *cq;
1325 /* If we haven't received a specific coalescing setting
1326 * (module param), we set the moderation parameters as follows:
1327 * - moder_cnt is set to the number of mtu sized packets to
1328 * satisfy our coalescing target.
1329 * - moder_time is set to a fixed value.
1331 priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
1332 priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
1333 priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
1334 priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
1335 en_dbg(INTR, priv, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1336 priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
1338 /* Setup cq moderation params */
1339 for (i = 0; i < priv->rx_ring_num; i++) {
1340 cq = priv->rx_cq[i];
1341 cq->moder_cnt = priv->rx_frames;
1342 cq->moder_time = priv->rx_usecs;
1343 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1344 priv->last_moder_packets[i] = 0;
1345 priv->last_moder_bytes[i] = 0;
1348 for (i = 0; i < priv->tx_ring_num; i++) {
1349 cq = priv->tx_cq[i];
1350 cq->moder_cnt = priv->tx_frames;
1351 cq->moder_time = priv->tx_usecs;
1354 /* Reset auto-moderation params */
1355 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
1356 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
1357 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
1358 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
1359 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
1360 priv->adaptive_rx_coal = 1;
1361 priv->last_moder_jiffies = 0;
1362 priv->last_moder_tx_packets = 0;
1365 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
1367 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
1368 struct mlx4_en_cq *cq;
1369 unsigned long packets;
1371 unsigned long avg_pkt_size;
1372 unsigned long rx_packets;
1373 unsigned long rx_bytes;
1374 unsigned long rx_pkt_diff;
1378 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
1381 for (ring = 0; ring < priv->rx_ring_num; ring++) {
1382 spin_lock_bh(&priv->stats_lock);
1383 rx_packets = priv->rx_ring[ring]->packets;
1384 rx_bytes = priv->rx_ring[ring]->bytes;
1385 spin_unlock_bh(&priv->stats_lock);
1387 rx_pkt_diff = ((unsigned long) (rx_packets -
1388 priv->last_moder_packets[ring]));
1389 packets = rx_pkt_diff;
1390 rate = packets * HZ / period;
1391 avg_pkt_size = packets ? ((unsigned long) (rx_bytes -
1392 priv->last_moder_bytes[ring])) / packets : 0;
1394 /* Apply auto-moderation only when packet rate
1395 * exceeds a rate that it matters */
1396 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
1397 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
1398 if (rate < priv->pkt_rate_low)
1399 moder_time = priv->rx_usecs_low;
1400 else if (rate > priv->pkt_rate_high)
1401 moder_time = priv->rx_usecs_high;
1403 moder_time = (rate - priv->pkt_rate_low) *
1404 (priv->rx_usecs_high - priv->rx_usecs_low) /
1405 (priv->pkt_rate_high - priv->pkt_rate_low) +
1408 moder_time = priv->rx_usecs_low;
1411 if (moder_time != priv->last_moder_time[ring]) {
1412 priv->last_moder_time[ring] = moder_time;
1413 cq = priv->rx_cq[ring];
1414 cq->moder_time = moder_time;
1415 cq->moder_cnt = priv->rx_frames;
1416 err = mlx4_en_set_cq_moder(priv, cq);
1418 en_err(priv, "Failed modifying moderation for cq:%d\n",
1421 priv->last_moder_packets[ring] = rx_packets;
1422 priv->last_moder_bytes[ring] = rx_bytes;
1425 priv->last_moder_jiffies = jiffies;
1428 static void mlx4_en_do_get_stats(struct work_struct *work)
1430 struct delayed_work *delay = to_delayed_work(work);
1431 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1433 struct mlx4_en_dev *mdev = priv->mdev;
1436 mutex_lock(&mdev->state_lock);
1437 if (mdev->device_up) {
1438 if (priv->port_up) {
1439 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
1441 en_dbg(HW, priv, "Could not update stats\n");
1443 mlx4_en_auto_moderation(priv);
1446 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
1448 if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
1449 mlx4_en_do_set_mac(priv, priv->current_mac);
1450 mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
1452 mutex_unlock(&mdev->state_lock);
1455 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1458 static void mlx4_en_service_task(struct work_struct *work)
1460 struct delayed_work *delay = to_delayed_work(work);
1461 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1463 struct mlx4_en_dev *mdev = priv->mdev;
1465 mutex_lock(&mdev->state_lock);
1466 if (mdev->device_up) {
1467 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
1468 mlx4_en_ptp_overflow_check(mdev);
1470 mlx4_en_recover_from_oom(priv);
1471 queue_delayed_work(mdev->workqueue, &priv->service_task,
1472 SERVICE_TASK_DELAY);
1474 mutex_unlock(&mdev->state_lock);
1477 static void mlx4_en_linkstate(struct work_struct *work)
1479 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1481 struct mlx4_en_dev *mdev = priv->mdev;
1482 int linkstate = priv->link_state;
1484 mutex_lock(&mdev->state_lock);
1485 /* If observable port state changed set carrier state and
1486 * report to system log */
1487 if (priv->last_link_state != linkstate) {
1488 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
1489 en_info(priv, "Link Down\n");
1490 netif_carrier_off(priv->dev);
1492 en_info(priv, "Link Up\n");
1493 netif_carrier_on(priv->dev);
1496 priv->last_link_state = linkstate;
1497 mutex_unlock(&mdev->state_lock);
1500 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1502 struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx];
1503 int numa_node = priv->mdev->dev->numa_node;
1506 if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL))
1509 ret = cpumask_set_cpu_local_first(ring_idx, numa_node,
1510 ring->affinity_mask);
1512 free_cpumask_var(ring->affinity_mask);
1517 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1519 free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask);
1522 int mlx4_en_start_port(struct net_device *dev)
1524 struct mlx4_en_priv *priv = netdev_priv(dev);
1525 struct mlx4_en_dev *mdev = priv->mdev;
1526 struct mlx4_en_cq *cq;
1527 struct mlx4_en_tx_ring *tx_ring;
1533 u8 mc_list[16] = {0};
1535 if (priv->port_up) {
1536 en_dbg(DRV, priv, "start port called while port already up\n");
1540 INIT_LIST_HEAD(&priv->mc_list);
1541 INIT_LIST_HEAD(&priv->curr_list);
1542 INIT_LIST_HEAD(&priv->ethtool_list);
1543 memset(&priv->ethtool_rules[0], 0,
1544 sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
1546 /* Calculate Rx buf size */
1547 dev->mtu = min(dev->mtu, priv->max_mtu);
1548 mlx4_en_calc_rx_buf(dev);
1549 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
1551 /* Configure rx cq's and rings */
1552 err = mlx4_en_activate_rx_rings(priv);
1554 en_err(priv, "Failed to activate RX rings\n");
1557 for (i = 0; i < priv->rx_ring_num; i++) {
1558 cq = priv->rx_cq[i];
1560 mlx4_en_cq_init_lock(cq);
1562 err = mlx4_en_init_affinity_hint(priv, i);
1564 en_err(priv, "Failed preparing IRQ affinity hint\n");
1568 err = mlx4_en_activate_cq(priv, cq, i);
1570 en_err(priv, "Failed activating Rx CQ\n");
1571 mlx4_en_free_affinity_hint(priv, i);
1575 for (j = 0; j < cq->size; j++) {
1576 struct mlx4_cqe *cqe = NULL;
1578 cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) +
1580 cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK;
1583 err = mlx4_en_set_cq_moder(priv, cq);
1585 en_err(priv, "Failed setting cq moderation parameters\n");
1586 mlx4_en_deactivate_cq(priv, cq);
1587 mlx4_en_free_affinity_hint(priv, i);
1590 mlx4_en_arm_cq(priv, cq);
1591 priv->rx_ring[i]->cqn = cq->mcq.cqn;
1596 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
1597 err = mlx4_en_get_qp(priv);
1599 en_err(priv, "Failed getting eth qp\n");
1602 mdev->mac_removed[priv->port] = 0;
1604 err = mlx4_en_config_rss_steer(priv);
1606 en_err(priv, "Failed configuring rss steering\n");
1610 err = mlx4_en_create_drop_qp(priv);
1614 /* Configure tx cq's and rings */
1615 for (i = 0; i < priv->tx_ring_num; i++) {
1617 cq = priv->tx_cq[i];
1618 err = mlx4_en_activate_cq(priv, cq, i);
1620 en_err(priv, "Failed allocating Tx CQ\n");
1623 err = mlx4_en_set_cq_moder(priv, cq);
1625 en_err(priv, "Failed setting cq moderation parameters\n");
1626 mlx4_en_deactivate_cq(priv, cq);
1629 en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i);
1630 cq->buf->wqe_index = cpu_to_be16(0xffff);
1632 /* Configure ring */
1633 tx_ring = priv->tx_ring[i];
1634 err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
1635 i / priv->num_tx_rings_p_up);
1637 en_err(priv, "Failed allocating Tx ring\n");
1638 mlx4_en_deactivate_cq(priv, cq);
1641 tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
1643 /* Arm CQ for TX completions */
1644 mlx4_en_arm_cq(priv, cq);
1646 /* Set initial ownership of all Tx TXBBs to SW (1) */
1647 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
1648 *((u32 *) (tx_ring->buf + j)) = 0xffffffff;
1652 /* Configure port */
1653 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1654 priv->rx_skb_size + ETH_FCS_LEN,
1655 priv->prof->tx_pause,
1657 priv->prof->rx_pause,
1658 priv->prof->rx_ppp);
1660 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
1664 /* Set default qp number */
1665 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
1667 en_err(priv, "Failed setting default qp numbers\n");
1671 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
1672 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
1674 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
1681 en_dbg(HW, priv, "Initializing port\n");
1682 err = mlx4_INIT_PORT(mdev->dev, priv->port);
1684 en_err(priv, "Failed Initializing port\n");
1688 /* Attach rx QP to bradcast address */
1689 eth_broadcast_addr(&mc_list[10]);
1690 mc_list[5] = priv->port; /* needed for B0 steering support */
1691 if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1692 priv->port, 0, MLX4_PROT_ETH,
1693 &priv->broadcast_id))
1694 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
1696 /* Must redo promiscuous mode setup. */
1697 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
1699 /* Schedule multicast task to populate multicast list */
1700 queue_work(mdev->workqueue, &priv->rx_mode_task);
1702 #ifdef CONFIG_MLX4_EN_VXLAN
1703 if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
1704 vxlan_get_rx_port(dev);
1706 priv->port_up = true;
1707 netif_tx_start_all_queues(dev);
1708 netif_device_attach(dev);
1713 while (tx_index--) {
1714 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[tx_index]);
1715 mlx4_en_deactivate_cq(priv, priv->tx_cq[tx_index]);
1717 mlx4_en_destroy_drop_qp(priv);
1719 mlx4_en_release_rss_steer(priv);
1721 mlx4_en_put_qp(priv);
1723 while (rx_index--) {
1724 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
1725 mlx4_en_free_affinity_hint(priv, rx_index);
1727 for (i = 0; i < priv->rx_ring_num; i++)
1728 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1730 return err; /* need to close devices */
1734 void mlx4_en_stop_port(struct net_device *dev, int detach)
1736 struct mlx4_en_priv *priv = netdev_priv(dev);
1737 struct mlx4_en_dev *mdev = priv->mdev;
1738 struct mlx4_en_mc_list *mclist, *tmp;
1739 struct ethtool_flow_id *flow, *tmp_flow;
1741 u8 mc_list[16] = {0};
1743 if (!priv->port_up) {
1744 en_dbg(DRV, priv, "stop port called while port already down\n");
1749 mlx4_CLOSE_PORT(mdev->dev, priv->port);
1751 /* Synchronize with tx routine */
1752 netif_tx_lock_bh(dev);
1754 netif_device_detach(dev);
1755 netif_tx_stop_all_queues(dev);
1756 netif_tx_unlock_bh(dev);
1758 netif_tx_disable(dev);
1760 /* Set port as not active */
1761 priv->port_up = false;
1763 /* Promsicuous mode */
1764 if (mdev->dev->caps.steering_mode ==
1765 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1766 priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
1767 MLX4_EN_FLAG_MC_PROMISC);
1768 mlx4_flow_steer_promisc_remove(mdev->dev,
1770 MLX4_FS_ALL_DEFAULT);
1771 mlx4_flow_steer_promisc_remove(mdev->dev,
1773 MLX4_FS_MC_DEFAULT);
1774 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
1775 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
1777 /* Disable promiscouos mode */
1778 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
1781 /* Disable Multicast promisc */
1782 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1783 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
1785 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1789 /* Detach All multicasts */
1790 eth_broadcast_addr(&mc_list[10]);
1791 mc_list[5] = priv->port; /* needed for B0 steering support */
1792 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list,
1793 MLX4_PROT_ETH, priv->broadcast_id);
1794 list_for_each_entry(mclist, &priv->curr_list, list) {
1795 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1796 mc_list[5] = priv->port;
1797 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp,
1798 mc_list, MLX4_PROT_ETH, mclist->reg_id);
1799 if (mclist->tunnel_reg_id)
1800 mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id);
1802 mlx4_en_clear_list(dev);
1803 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1804 list_del(&mclist->list);
1808 /* Flush multicast filter */
1809 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
1811 /* Remove flow steering rules for the port*/
1812 if (mdev->dev->caps.steering_mode ==
1813 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1815 list_for_each_entry_safe(flow, tmp_flow,
1816 &priv->ethtool_list, list) {
1817 mlx4_flow_detach(mdev->dev, flow->id);
1818 list_del(&flow->list);
1822 mlx4_en_destroy_drop_qp(priv);
1825 for (i = 0; i < priv->tx_ring_num; i++) {
1826 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[i]);
1827 mlx4_en_deactivate_cq(priv, priv->tx_cq[i]);
1831 for (i = 0; i < priv->tx_ring_num; i++)
1832 mlx4_en_free_tx_buf(dev, priv->tx_ring[i]);
1835 mlx4_en_release_rss_steer(priv);
1837 /* Unregister Mac address for the port */
1838 mlx4_en_put_qp(priv);
1839 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
1840 mdev->mac_removed[priv->port] = 1;
1843 for (i = 0; i < priv->rx_ring_num; i++) {
1844 struct mlx4_en_cq *cq = priv->rx_cq[i];
1847 while (!mlx4_en_cq_lock_napi(cq)) {
1848 pr_info("CQ %d locked\n", i);
1853 napi_synchronize(&cq->napi);
1854 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1855 mlx4_en_deactivate_cq(priv, cq);
1857 mlx4_en_free_affinity_hint(priv, i);
1861 static void mlx4_en_restart(struct work_struct *work)
1863 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1865 struct mlx4_en_dev *mdev = priv->mdev;
1866 struct net_device *dev = priv->dev;
1868 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
1870 mutex_lock(&mdev->state_lock);
1871 if (priv->port_up) {
1872 mlx4_en_stop_port(dev, 1);
1873 if (mlx4_en_start_port(dev))
1874 en_err(priv, "Failed restarting port %d\n", priv->port);
1876 mutex_unlock(&mdev->state_lock);
1879 static void mlx4_en_clear_stats(struct net_device *dev)
1881 struct mlx4_en_priv *priv = netdev_priv(dev);
1882 struct mlx4_en_dev *mdev = priv->mdev;
1885 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
1886 en_dbg(HW, priv, "Failed dumping statistics\n");
1888 memset(&priv->stats, 0, sizeof(priv->stats));
1889 memset(&priv->pstats, 0, sizeof(priv->pstats));
1890 memset(&priv->pkstats, 0, sizeof(priv->pkstats));
1891 memset(&priv->port_stats, 0, sizeof(priv->port_stats));
1892 memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats));
1893 memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats));
1894 memset(&priv->rx_priority_flowstats, 0,
1895 sizeof(priv->rx_priority_flowstats));
1896 memset(&priv->tx_priority_flowstats, 0,
1897 sizeof(priv->tx_priority_flowstats));
1899 for (i = 0; i < priv->tx_ring_num; i++) {
1900 priv->tx_ring[i]->bytes = 0;
1901 priv->tx_ring[i]->packets = 0;
1902 priv->tx_ring[i]->tx_csum = 0;
1904 for (i = 0; i < priv->rx_ring_num; i++) {
1905 priv->rx_ring[i]->bytes = 0;
1906 priv->rx_ring[i]->packets = 0;
1907 priv->rx_ring[i]->csum_ok = 0;
1908 priv->rx_ring[i]->csum_none = 0;
1909 priv->rx_ring[i]->csum_complete = 0;
1913 static int mlx4_en_open(struct net_device *dev)
1915 struct mlx4_en_priv *priv = netdev_priv(dev);
1916 struct mlx4_en_dev *mdev = priv->mdev;
1919 mutex_lock(&mdev->state_lock);
1921 if (!mdev->device_up) {
1922 en_err(priv, "Cannot open - device down/disabled\n");
1927 /* Reset HW statistics and SW counters */
1928 mlx4_en_clear_stats(dev);
1930 err = mlx4_en_start_port(dev);
1932 en_err(priv, "Failed starting port:%d\n", priv->port);
1935 mutex_unlock(&mdev->state_lock);
1940 static int mlx4_en_close(struct net_device *dev)
1942 struct mlx4_en_priv *priv = netdev_priv(dev);
1943 struct mlx4_en_dev *mdev = priv->mdev;
1945 en_dbg(IFDOWN, priv, "Close port called\n");
1947 mutex_lock(&mdev->state_lock);
1949 mlx4_en_stop_port(dev, 0);
1950 netif_carrier_off(dev);
1952 mutex_unlock(&mdev->state_lock);
1956 void mlx4_en_free_resources(struct mlx4_en_priv *priv)
1960 #ifdef CONFIG_RFS_ACCEL
1961 free_irq_cpu_rmap(priv->dev->rx_cpu_rmap);
1962 priv->dev->rx_cpu_rmap = NULL;
1965 for (i = 0; i < priv->tx_ring_num; i++) {
1966 if (priv->tx_ring && priv->tx_ring[i])
1967 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
1968 if (priv->tx_cq && priv->tx_cq[i])
1969 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
1972 for (i = 0; i < priv->rx_ring_num; i++) {
1973 if (priv->rx_ring[i])
1974 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
1975 priv->prof->rx_ring_size, priv->stride);
1977 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
1980 if (priv->base_tx_qpn) {
1981 mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num);
1982 priv->base_tx_qpn = 0;
1986 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
1988 struct mlx4_en_port_profile *prof = priv->prof;
1992 /* Create tx Rings */
1993 for (i = 0; i < priv->tx_ring_num; i++) {
1994 node = cpu_to_node(i % num_online_cpus());
1995 if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
1996 prof->tx_ring_size, i, TX, node))
1999 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
2000 prof->tx_ring_size, TXBB_SIZE,
2005 /* Create rx Rings */
2006 for (i = 0; i < priv->rx_ring_num; i++) {
2007 node = cpu_to_node(i % num_online_cpus());
2008 if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
2009 prof->rx_ring_size, i, RX, node))
2012 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
2013 prof->rx_ring_size, priv->stride,
2018 #ifdef CONFIG_RFS_ACCEL
2019 if (priv->mdev->dev->caps.comp_pool) {
2020 priv->dev->rx_cpu_rmap = alloc_irq_cpu_rmap(priv->mdev->dev->caps.comp_pool);
2021 if (!priv->dev->rx_cpu_rmap)
2029 en_err(priv, "Failed to allocate NIC resources\n");
2030 for (i = 0; i < priv->rx_ring_num; i++) {
2031 if (priv->rx_ring[i])
2032 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2036 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2038 for (i = 0; i < priv->tx_ring_num; i++) {
2039 if (priv->tx_ring[i])
2040 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
2042 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
2048 void mlx4_en_destroy_netdev(struct net_device *dev)
2050 struct mlx4_en_priv *priv = netdev_priv(dev);
2051 struct mlx4_en_dev *mdev = priv->mdev;
2053 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
2055 /* Unregister device - this will close the port if it was up */
2056 if (priv->registered)
2057 unregister_netdev(dev);
2059 if (priv->allocated)
2060 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
2062 cancel_delayed_work(&priv->stats_task);
2063 cancel_delayed_work(&priv->service_task);
2064 /* flush any pending task for this netdev */
2065 flush_workqueue(mdev->workqueue);
2067 /* Detach the netdev so tasks would not attempt to access it */
2068 mutex_lock(&mdev->state_lock);
2069 mdev->pndev[priv->port] = NULL;
2070 mdev->upper[priv->port] = NULL;
2071 mutex_unlock(&mdev->state_lock);
2073 mlx4_en_free_resources(priv);
2075 kfree(priv->tx_ring);
2081 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
2083 struct mlx4_en_priv *priv = netdev_priv(dev);
2084 struct mlx4_en_dev *mdev = priv->mdev;
2087 en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
2090 if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) {
2091 en_err(priv, "Bad MTU size:%d.\n", new_mtu);
2096 if (netif_running(dev)) {
2097 mutex_lock(&mdev->state_lock);
2098 if (!mdev->device_up) {
2099 /* NIC is probably restarting - let watchdog task reset
2101 en_dbg(DRV, priv, "Change MTU called with card down!?\n");
2103 mlx4_en_stop_port(dev, 1);
2104 err = mlx4_en_start_port(dev);
2106 en_err(priv, "Failed restarting port:%d\n",
2108 queue_work(mdev->workqueue, &priv->watchdog_task);
2111 mutex_unlock(&mdev->state_lock);
2116 static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
2118 struct mlx4_en_priv *priv = netdev_priv(dev);
2119 struct mlx4_en_dev *mdev = priv->mdev;
2120 struct hwtstamp_config config;
2122 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
2125 /* reserved for future extensions */
2129 /* device doesn't support time stamping */
2130 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
2133 /* TX HW timestamp */
2134 switch (config.tx_type) {
2135 case HWTSTAMP_TX_OFF:
2136 case HWTSTAMP_TX_ON:
2142 /* RX HW timestamp */
2143 switch (config.rx_filter) {
2144 case HWTSTAMP_FILTER_NONE:
2146 case HWTSTAMP_FILTER_ALL:
2147 case HWTSTAMP_FILTER_SOME:
2148 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
2149 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
2150 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
2151 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
2152 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
2153 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
2154 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
2155 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
2156 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
2157 case HWTSTAMP_FILTER_PTP_V2_EVENT:
2158 case HWTSTAMP_FILTER_PTP_V2_SYNC:
2159 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
2160 config.rx_filter = HWTSTAMP_FILTER_ALL;
2166 if (mlx4_en_reset_config(dev, config, dev->features)) {
2167 config.tx_type = HWTSTAMP_TX_OFF;
2168 config.rx_filter = HWTSTAMP_FILTER_NONE;
2171 return copy_to_user(ifr->ifr_data, &config,
2172 sizeof(config)) ? -EFAULT : 0;
2175 static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
2177 struct mlx4_en_priv *priv = netdev_priv(dev);
2179 return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config,
2180 sizeof(priv->hwtstamp_config)) ? -EFAULT : 0;
2183 static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2187 return mlx4_en_hwtstamp_set(dev, ifr);
2189 return mlx4_en_hwtstamp_get(dev, ifr);
2195 static int mlx4_en_set_features(struct net_device *netdev,
2196 netdev_features_t features)
2198 struct mlx4_en_priv *priv = netdev_priv(netdev);
2202 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) {
2203 en_info(priv, "Turn %s RX-FCS\n",
2204 (features & NETIF_F_RXFCS) ? "ON" : "OFF");
2208 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) {
2209 u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0;
2211 en_info(priv, "Turn %s RX-ALL\n",
2212 ignore_fcs_value ? "ON" : "OFF");
2213 ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev,
2214 priv->port, ignore_fcs_value);
2219 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
2220 en_info(priv, "Turn %s RX vlan strip offload\n",
2221 (features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF");
2225 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX))
2226 en_info(priv, "Turn %s TX vlan strip offload\n",
2227 (features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
2229 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) {
2230 en_info(priv, "Turn %s loopback\n",
2231 (features & NETIF_F_LOOPBACK) ? "ON" : "OFF");
2232 mlx4_en_update_loopback_state(netdev, features);
2236 ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config,
2245 static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
2247 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2248 struct mlx4_en_dev *mdev = en_priv->mdev;
2249 u64 mac_u64 = mlx4_mac_to_u64(mac);
2251 if (!is_valid_ether_addr(mac))
2254 return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
2257 static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
2259 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2260 struct mlx4_en_dev *mdev = en_priv->mdev;
2262 return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos);
2265 static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
2268 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2269 struct mlx4_en_dev *mdev = en_priv->mdev;
2271 return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate,
2275 static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
2277 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2278 struct mlx4_en_dev *mdev = en_priv->mdev;
2280 return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting);
2283 static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf)
2285 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2286 struct mlx4_en_dev *mdev = en_priv->mdev;
2288 return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
2291 static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
2293 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2294 struct mlx4_en_dev *mdev = en_priv->mdev;
2296 return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
2299 #define PORT_ID_BYTE_LEN 8
2300 static int mlx4_en_get_phys_port_id(struct net_device *dev,
2301 struct netdev_phys_item_id *ppid)
2303 struct mlx4_en_priv *priv = netdev_priv(dev);
2304 struct mlx4_dev *mdev = priv->mdev->dev;
2306 u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
2311 ppid->id_len = sizeof(phys_port_id);
2312 for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
2313 ppid->id[i] = phys_port_id & 0xff;
2319 #ifdef CONFIG_MLX4_EN_VXLAN
2320 static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
2323 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2326 ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
2330 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2331 VXLAN_STEER_BY_OUTER_MAC, 1);
2334 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2339 priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2340 NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL;
2341 priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
2342 priv->dev->features |= NETIF_F_GSO_UDP_TUNNEL;
2345 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
2348 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2350 /* unset offloads */
2351 priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2352 NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL);
2353 priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
2354 priv->dev->features &= ~NETIF_F_GSO_UDP_TUNNEL;
2356 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2357 VXLAN_STEER_BY_OUTER_MAC, 0);
2359 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2361 priv->vxlan_port = 0;
2364 static void mlx4_en_add_vxlan_port(struct net_device *dev,
2365 sa_family_t sa_family, __be16 port)
2367 struct mlx4_en_priv *priv = netdev_priv(dev);
2368 __be16 current_port;
2370 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2373 if (sa_family == AF_INET6)
2376 current_port = priv->vxlan_port;
2377 if (current_port && current_port != port) {
2378 en_warn(priv, "vxlan port %d configured, can't add port %d\n",
2379 ntohs(current_port), ntohs(port));
2383 priv->vxlan_port = port;
2384 queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
2387 static void mlx4_en_del_vxlan_port(struct net_device *dev,
2388 sa_family_t sa_family, __be16 port)
2390 struct mlx4_en_priv *priv = netdev_priv(dev);
2391 __be16 current_port;
2393 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2396 if (sa_family == AF_INET6)
2399 current_port = priv->vxlan_port;
2400 if (current_port != port) {
2401 en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
2405 queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
2408 static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
2409 struct net_device *dev,
2410 netdev_features_t features)
2412 features = vlan_features_check(skb, features);
2413 return vxlan_features_check(skb, features);
2417 static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate)
2419 struct mlx4_en_priv *priv = netdev_priv(dev);
2420 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[queue_index];
2421 struct mlx4_update_qp_params params;
2424 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT))
2427 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2428 if (maxrate >> 12) {
2429 params.rate_unit = MLX4_QP_RATE_LIMIT_GBS;
2430 params.rate_val = maxrate / 1000;
2431 } else if (maxrate) {
2432 params.rate_unit = MLX4_QP_RATE_LIMIT_MBS;
2433 params.rate_val = maxrate;
2434 } else { /* zero serves to revoke the QP rate-limitation */
2435 params.rate_unit = 0;
2436 params.rate_val = 0;
2439 err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT,
2444 static const struct net_device_ops mlx4_netdev_ops = {
2445 .ndo_open = mlx4_en_open,
2446 .ndo_stop = mlx4_en_close,
2447 .ndo_start_xmit = mlx4_en_xmit,
2448 .ndo_select_queue = mlx4_en_select_queue,
2449 .ndo_get_stats = mlx4_en_get_stats,
2450 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2451 .ndo_set_mac_address = mlx4_en_set_mac,
2452 .ndo_validate_addr = eth_validate_addr,
2453 .ndo_change_mtu = mlx4_en_change_mtu,
2454 .ndo_do_ioctl = mlx4_en_ioctl,
2455 .ndo_tx_timeout = mlx4_en_tx_timeout,
2456 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2457 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2458 #ifdef CONFIG_NET_POLL_CONTROLLER
2459 .ndo_poll_controller = mlx4_en_netpoll,
2461 .ndo_set_features = mlx4_en_set_features,
2462 .ndo_setup_tc = mlx4_en_setup_tc,
2463 #ifdef CONFIG_RFS_ACCEL
2464 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2466 #ifdef CONFIG_NET_RX_BUSY_POLL
2467 .ndo_busy_poll = mlx4_en_low_latency_recv,
2469 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2470 #ifdef CONFIG_MLX4_EN_VXLAN
2471 .ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
2472 .ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
2473 .ndo_features_check = mlx4_en_features_check,
2475 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2478 static const struct net_device_ops mlx4_netdev_ops_master = {
2479 .ndo_open = mlx4_en_open,
2480 .ndo_stop = mlx4_en_close,
2481 .ndo_start_xmit = mlx4_en_xmit,
2482 .ndo_select_queue = mlx4_en_select_queue,
2483 .ndo_get_stats = mlx4_en_get_stats,
2484 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2485 .ndo_set_mac_address = mlx4_en_set_mac,
2486 .ndo_validate_addr = eth_validate_addr,
2487 .ndo_change_mtu = mlx4_en_change_mtu,
2488 .ndo_tx_timeout = mlx4_en_tx_timeout,
2489 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2490 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2491 .ndo_set_vf_mac = mlx4_en_set_vf_mac,
2492 .ndo_set_vf_vlan = mlx4_en_set_vf_vlan,
2493 .ndo_set_vf_rate = mlx4_en_set_vf_rate,
2494 .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk,
2495 .ndo_set_vf_link_state = mlx4_en_set_vf_link_state,
2496 .ndo_get_vf_config = mlx4_en_get_vf_config,
2497 #ifdef CONFIG_NET_POLL_CONTROLLER
2498 .ndo_poll_controller = mlx4_en_netpoll,
2500 .ndo_set_features = mlx4_en_set_features,
2501 .ndo_setup_tc = mlx4_en_setup_tc,
2502 #ifdef CONFIG_RFS_ACCEL
2503 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2505 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2506 #ifdef CONFIG_MLX4_EN_VXLAN
2507 .ndo_add_vxlan_port = mlx4_en_add_vxlan_port,
2508 .ndo_del_vxlan_port = mlx4_en_del_vxlan_port,
2509 .ndo_features_check = mlx4_en_features_check,
2511 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2514 struct mlx4_en_bond {
2515 struct work_struct work;
2516 struct mlx4_en_priv *priv;
2518 struct mlx4_port_map port_map;
2521 static void mlx4_en_bond_work(struct work_struct *work)
2523 struct mlx4_en_bond *bond = container_of(work,
2524 struct mlx4_en_bond,
2527 struct mlx4_dev *dev = bond->priv->mdev->dev;
2529 if (bond->is_bonded) {
2530 if (!mlx4_is_bonded(dev)) {
2531 err = mlx4_bond(dev);
2533 en_err(bond->priv, "Fail to bond device\n");
2536 err = mlx4_port_map_set(dev, &bond->port_map);
2538 en_err(bond->priv, "Fail to set port map [%d][%d]: %d\n",
2539 bond->port_map.port1,
2540 bond->port_map.port2,
2543 } else if (mlx4_is_bonded(dev)) {
2544 err = mlx4_unbond(dev);
2546 en_err(bond->priv, "Fail to unbond device\n");
2548 dev_put(bond->priv->dev);
2552 static int mlx4_en_queue_bond_work(struct mlx4_en_priv *priv, int is_bonded,
2553 u8 v2p_p1, u8 v2p_p2)
2555 struct mlx4_en_bond *bond = NULL;
2557 bond = kzalloc(sizeof(*bond), GFP_ATOMIC);
2561 INIT_WORK(&bond->work, mlx4_en_bond_work);
2563 bond->is_bonded = is_bonded;
2564 bond->port_map.port1 = v2p_p1;
2565 bond->port_map.port2 = v2p_p2;
2566 dev_hold(priv->dev);
2567 queue_work(priv->mdev->workqueue, &bond->work);
2571 int mlx4_en_netdev_event(struct notifier_block *this,
2572 unsigned long event, void *ptr)
2574 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
2576 struct mlx4_en_dev *mdev;
2577 struct mlx4_dev *dev;
2578 int i, num_eth_ports = 0;
2579 bool do_bond = true;
2580 struct mlx4_en_priv *priv;
2584 if (!net_eq(dev_net(ndev), &init_net))
2587 mdev = container_of(this, struct mlx4_en_dev, nb);
2590 /* Go into this mode only when two network devices set on two ports
2591 * of the same mlx4 device are slaves of the same bonding master
2593 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
2595 if (!port && (mdev->pndev[i] == ndev))
2597 mdev->upper[i] = mdev->pndev[i] ?
2598 netdev_master_upper_dev_get(mdev->pndev[i]) : NULL;
2599 /* condition not met: network device is a slave */
2600 if (!mdev->upper[i])
2602 if (num_eth_ports < 2)
2604 /* condition not met: same master */
2605 if (mdev->upper[i] != mdev->upper[i-1])
2608 /* condition not met: 2 salves */
2609 do_bond = (num_eth_ports == 2) ? do_bond : false;
2611 /* handle only events that come with enough info */
2612 if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port)
2615 priv = netdev_priv(ndev);
2617 struct netdev_notifier_bonding_info *notifier_info = ptr;
2618 struct netdev_bonding_info *bonding_info =
2619 ¬ifier_info->bonding_info;
2621 /* required mode 1, 2 or 4 */
2622 if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) &&
2623 (bonding_info->master.bond_mode != BOND_MODE_XOR) &&
2624 (bonding_info->master.bond_mode != BOND_MODE_8023AD))
2627 /* require exactly 2 slaves */
2628 if (bonding_info->master.num_slaves != 2)
2633 if (bonding_info->master.bond_mode ==
2634 BOND_MODE_ACTIVEBACKUP) {
2635 /* in active-backup mode virtual ports are
2636 * mapped to the physical port of the active
2638 if (bonding_info->slave.state ==
2639 BOND_STATE_BACKUP) {
2647 } else { /* BOND_STATE_ACTIVE */
2656 } else { /* Active-Active */
2657 /* in active-active mode a virtual port is
2658 * mapped to the native physical port if and only
2659 * if the physical port is up */
2660 __s8 link = bonding_info->slave.link;
2666 if ((link == BOND_LINK_UP) ||
2667 (link == BOND_LINK_FAIL)) {
2672 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
2682 mlx4_en_queue_bond_work(priv, do_bond,
2683 v2p_port1, v2p_port2);
2688 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
2689 struct mlx4_en_stats_bitmap *stats_bitmap,
2690 u8 rx_ppp, u8 rx_pause,
2691 u8 tx_ppp, u8 tx_pause)
2693 int last_i = NUM_MAIN_STATS + NUM_PORT_STATS;
2695 if (!mlx4_is_slave(dev) &&
2696 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) {
2697 mutex_lock(&stats_bitmap->mutex);
2698 bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS);
2701 bitmap_set(stats_bitmap->bitmap, last_i,
2702 NUM_FLOW_PRIORITY_STATS_RX);
2703 last_i += NUM_FLOW_PRIORITY_STATS_RX;
2705 if (rx_pause && !(rx_ppp))
2706 bitmap_set(stats_bitmap->bitmap, last_i,
2708 last_i += NUM_FLOW_STATS_RX;
2711 bitmap_set(stats_bitmap->bitmap, last_i,
2712 NUM_FLOW_PRIORITY_STATS_TX);
2713 last_i += NUM_FLOW_PRIORITY_STATS_TX;
2715 if (tx_pause && !(tx_ppp))
2716 bitmap_set(stats_bitmap->bitmap, last_i,
2718 last_i += NUM_FLOW_STATS_TX;
2720 mutex_unlock(&stats_bitmap->mutex);
2724 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
2725 struct mlx4_en_stats_bitmap *stats_bitmap,
2726 u8 rx_ppp, u8 rx_pause,
2727 u8 tx_ppp, u8 tx_pause)
2731 mutex_init(&stats_bitmap->mutex);
2732 bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS);
2734 if (mlx4_is_slave(dev)) {
2735 bitmap_set(stats_bitmap->bitmap, last_i +
2736 MLX4_FIND_NETDEV_STAT(rx_packets), 1);
2737 bitmap_set(stats_bitmap->bitmap, last_i +
2738 MLX4_FIND_NETDEV_STAT(tx_packets), 1);
2739 bitmap_set(stats_bitmap->bitmap, last_i +
2740 MLX4_FIND_NETDEV_STAT(rx_bytes), 1);
2741 bitmap_set(stats_bitmap->bitmap, last_i +
2742 MLX4_FIND_NETDEV_STAT(tx_bytes), 1);
2743 bitmap_set(stats_bitmap->bitmap, last_i +
2744 MLX4_FIND_NETDEV_STAT(rx_dropped), 1);
2745 bitmap_set(stats_bitmap->bitmap, last_i +
2746 MLX4_FIND_NETDEV_STAT(tx_dropped), 1);
2748 bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS);
2750 last_i += NUM_MAIN_STATS;
2752 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS);
2753 last_i += NUM_PORT_STATS;
2755 mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap,
2758 last_i += NUM_FLOW_STATS;
2760 if (!mlx4_is_slave(dev))
2761 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS);
2764 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
2765 struct mlx4_en_port_profile *prof)
2767 struct net_device *dev;
2768 struct mlx4_en_priv *priv;
2773 dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
2774 MAX_TX_RINGS, MAX_RX_RINGS);
2778 netif_set_real_num_tx_queues(dev, prof->tx_ring_num);
2779 netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
2781 SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev);
2782 dev->dev_port = port - 1;
2785 * Initialize driver private data
2788 priv = netdev_priv(dev);
2789 memset(priv, 0, sizeof(struct mlx4_en_priv));
2790 spin_lock_init(&priv->stats_lock);
2791 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
2792 INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
2793 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
2794 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
2795 INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
2796 #ifdef CONFIG_MLX4_EN_VXLAN
2797 INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
2798 INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
2800 #ifdef CONFIG_RFS_ACCEL
2801 INIT_LIST_HEAD(&priv->filters);
2802 spin_lock_init(&priv->filters_lock);
2807 priv->ddev = &mdev->pdev->dev;
2810 priv->port_up = false;
2811 priv->flags = prof->flags;
2812 priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME;
2813 priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
2814 MLX4_WQE_CTRL_SOLICITED);
2815 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
2816 priv->tx_ring_num = prof->tx_ring_num;
2817 priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK;
2818 netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key));
2820 priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring *) * MAX_TX_RINGS,
2822 if (!priv->tx_ring) {
2826 priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq *) * MAX_TX_RINGS,
2832 priv->rx_ring_num = prof->rx_ring_num;
2833 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
2834 priv->cqe_size = mdev->dev->caps.cqe_size;
2835 priv->mac_index = -1;
2836 priv->msg_enable = MLX4_EN_MSG_LEVEL;
2837 #ifdef CONFIG_MLX4_EN_DCB
2838 if (!mlx4_is_slave(priv->mdev->dev)) {
2839 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
2840 dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
2842 en_info(priv, "enabling only PFC DCB ops\n");
2843 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
2848 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
2849 INIT_HLIST_HEAD(&priv->mac_hash[i]);
2851 /* Query for default mac and max mtu */
2852 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
2854 if (mdev->dev->caps.rx_checksum_flags_port[priv->port] &
2855 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP)
2856 priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP;
2858 /* Set default MAC */
2859 dev->addr_len = ETH_ALEN;
2860 mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
2861 if (!is_valid_ether_addr(dev->dev_addr)) {
2862 if (mlx4_is_slave(priv->mdev->dev)) {
2863 eth_hw_addr_random(dev);
2864 en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr);
2865 mac_u64 = mlx4_mac_to_u64(dev->dev_addr);
2866 mdev->dev->caps.def_mac[priv->port] = mac_u64;
2868 en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
2869 priv->port, dev->dev_addr);
2875 memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
2877 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
2878 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
2879 err = mlx4_en_alloc_resources(priv);
2883 /* Initialize time stamping config */
2884 priv->hwtstamp_config.flags = 0;
2885 priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
2886 priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
2888 /* Allocate page for receive rings */
2889 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
2890 MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);
2892 en_err(priv, "Failed to allocate page for rx qps\n");
2895 priv->allocated = 1;
2898 * Initialize netdev entry points
2900 if (mlx4_is_master(priv->mdev->dev))
2901 dev->netdev_ops = &mlx4_netdev_ops_master;
2903 dev->netdev_ops = &mlx4_netdev_ops;
2904 dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
2905 netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
2906 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
2908 dev->ethtool_ops = &mlx4_en_ethtool_ops;
2911 * Set driver features
2913 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
2914 if (mdev->LSO_support)
2915 dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
2917 dev->vlan_features = dev->hw_features;
2919 dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
2920 dev->features = dev->hw_features | NETIF_F_HIGHDMA |
2921 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
2922 NETIF_F_HW_VLAN_CTAG_FILTER;
2923 dev->hw_features |= NETIF_F_LOOPBACK |
2924 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
2926 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
2927 dev->hw_features |= NETIF_F_RXFCS;
2929 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)
2930 dev->hw_features |= NETIF_F_RXALL;
2932 if (mdev->dev->caps.steering_mode ==
2933 MLX4_STEERING_MODE_DEVICE_MANAGED &&
2934 mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC)
2935 dev->hw_features |= NETIF_F_NTUPLE;
2937 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
2938 dev->priv_flags |= IFF_UNICAST_FLT;
2940 /* Setting a default hash function value */
2941 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) {
2942 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
2943 } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) {
2944 priv->rss_hash_fn = ETH_RSS_HASH_XOR;
2947 "No RSS hash capabilities exposed, using Toeplitz\n");
2948 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
2951 mdev->pndev[port] = dev;
2952 mdev->upper[port] = NULL;
2954 netif_carrier_off(dev);
2955 mlx4_en_set_default_moderation(priv);
2957 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
2958 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
2960 mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
2962 /* Configure port */
2963 mlx4_en_calc_rx_buf(dev);
2964 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
2965 priv->rx_skb_size + ETH_FCS_LEN,
2966 prof->tx_pause, prof->tx_ppp,
2967 prof->rx_pause, prof->rx_ppp);
2969 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
2974 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
2975 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
2977 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
2984 en_warn(priv, "Initializing port\n");
2985 err = mlx4_INIT_PORT(mdev->dev, priv->port);
2987 en_err(priv, "Failed Initializing port\n");
2990 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
2992 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
2993 queue_delayed_work(mdev->workqueue, &priv->service_task,
2994 SERVICE_TASK_DELAY);
2996 mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap,
2997 mdev->profile.prof[priv->port].rx_ppp,
2998 mdev->profile.prof[priv->port].rx_pause,
2999 mdev->profile.prof[priv->port].tx_ppp,
3000 mdev->profile.prof[priv->port].tx_pause);
3002 err = register_netdev(dev);
3004 en_err(priv, "Netdev registration failed for port %d\n", port);
3008 priv->registered = 1;
3013 mlx4_en_destroy_netdev(dev);
3017 int mlx4_en_reset_config(struct net_device *dev,
3018 struct hwtstamp_config ts_config,
3019 netdev_features_t features)
3021 struct mlx4_en_priv *priv = netdev_priv(dev);
3022 struct mlx4_en_dev *mdev = priv->mdev;
3026 if (priv->hwtstamp_config.tx_type == ts_config.tx_type &&
3027 priv->hwtstamp_config.rx_filter == ts_config.rx_filter &&
3028 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3029 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS))
3030 return 0; /* Nothing to change */
3032 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3033 (features & NETIF_F_HW_VLAN_CTAG_RX) &&
3034 (priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) {
3035 en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3039 mutex_lock(&mdev->state_lock);
3040 if (priv->port_up) {
3042 mlx4_en_stop_port(dev, 1);
3045 mlx4_en_free_resources(priv);
3047 en_warn(priv, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3048 ts_config.rx_filter, !!(features & NETIF_F_HW_VLAN_CTAG_RX));
3050 priv->hwtstamp_config.tx_type = ts_config.tx_type;
3051 priv->hwtstamp_config.rx_filter = ts_config.rx_filter;
3053 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
3054 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3055 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3057 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3058 } else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) {
3059 /* RX time-stamping is OFF, update the RX vlan offload
3060 * to the latest wanted state
3062 if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX)
3063 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3065 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3068 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) {
3069 if (features & NETIF_F_RXFCS)
3070 dev->features |= NETIF_F_RXFCS;
3072 dev->features &= ~NETIF_F_RXFCS;
3075 /* RX vlan offload and RX time-stamping can't co-exist !
3076 * Regardless of the caller's choice,
3077 * Turn Off RX vlan offload in case of time-stamping is ON
3079 if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) {
3080 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
3081 en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n");
3082 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3085 err = mlx4_en_alloc_resources(priv);
3087 en_err(priv, "Failed reallocating port resources\n");
3091 err = mlx4_en_start_port(dev);
3093 en_err(priv, "Failed starting port\n");
3097 mutex_unlock(&mdev->state_lock);
3098 netdev_features_change(dev);