2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/bpf.h>
35 #include <linux/etherdevice.h>
36 #include <linux/tcp.h>
37 #include <linux/if_vlan.h>
38 #include <linux/delay.h>
39 #include <linux/slab.h>
40 #include <linux/hash.h>
42 #include <net/busy_poll.h>
43 #include <net/vxlan.h>
44 #include <net/devlink.h>
46 #include <linux/mlx4/driver.h>
47 #include <linux/mlx4/device.h>
48 #include <linux/mlx4/cmd.h>
49 #include <linux/mlx4/cq.h>
54 #define MLX4_EN_MAX_XDP_MTU ((int)(PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) - \
57 int mlx4_en_setup_tc(struct net_device *dev, u8 up)
59 struct mlx4_en_priv *priv = netdev_priv(dev);
61 unsigned int offset = 0;
63 if (up && up != MLX4_EN_NUM_UP_HIGH)
66 netdev_set_num_tc(dev, up);
67 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
68 /* Partition Tx queues evenly amongst UP's */
69 for (i = 0; i < up; i++) {
70 netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset);
71 offset += priv->num_tx_rings_p_up;
74 #ifdef CONFIG_MLX4_EN_DCB
75 if (!mlx4_is_slave(priv->mdev->dev)) {
78 priv->flags |= MLX4_EN_FLAG_DCB_ENABLED;
80 priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED;
81 priv->cee_config.pfc_state = false;
84 #endif /* CONFIG_MLX4_EN_DCB */
89 int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc)
91 struct mlx4_en_priv *priv = netdev_priv(dev);
92 struct mlx4_en_dev *mdev = priv->mdev;
93 struct mlx4_en_port_profile new_prof;
94 struct mlx4_en_priv *tmp;
98 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
102 mutex_lock(&mdev->state_lock);
103 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
104 new_prof.num_up = (tc == 0) ? MLX4_EN_NUM_UP_LOW :
106 new_prof.tx_ring_num[TX] = new_prof.num_tx_rings_p_up *
108 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true);
114 mlx4_en_stop_port(dev, 1);
117 mlx4_en_safe_replace_resources(priv, tmp);
119 err = mlx4_en_start_port(dev);
121 en_err(priv, "Failed starting port for setup TC\n");
126 err = mlx4_en_setup_tc(dev, tc);
128 mutex_unlock(&mdev->state_lock);
133 static int __mlx4_en_setup_tc(struct net_device *dev, enum tc_setup_type type,
136 struct tc_mqprio_qopt *mqprio = type_data;
138 if (type != TC_SETUP_MQPRIO)
141 if (mqprio->num_tc && mqprio->num_tc != MLX4_EN_NUM_UP_HIGH)
144 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
146 return mlx4_en_alloc_tx_queue_per_tc(dev, mqprio->num_tc);
149 #ifdef CONFIG_RFS_ACCEL
151 struct mlx4_en_filter {
152 struct list_head next;
153 struct work_struct work;
162 struct mlx4_en_priv *priv;
163 u32 flow_id; /* RFS infrastructure id */
164 int id; /* mlx4_en driver id */
165 u64 reg_id; /* Flow steering API id */
166 u8 activated; /* Used to prevent expiry before filter
169 struct hlist_node filter_chain;
172 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
174 static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
178 return MLX4_NET_TRANS_RULE_ID_UDP;
180 return MLX4_NET_TRANS_RULE_ID_TCP;
182 return MLX4_NET_TRANS_RULE_NUM;
186 /* Must not acquire state_lock, as its corresponding work_sync
189 static void mlx4_en_filter_work(struct work_struct *work)
191 struct mlx4_en_filter *filter = container_of(work,
192 struct mlx4_en_filter,
194 struct mlx4_en_priv *priv = filter->priv;
195 struct mlx4_spec_list spec_tcp_udp = {
196 .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
199 .dst_port = filter->dst_port,
200 .dst_port_msk = (__force __be16)-1,
201 .src_port = filter->src_port,
202 .src_port_msk = (__force __be16)-1,
206 struct mlx4_spec_list spec_ip = {
207 .id = MLX4_NET_TRANS_RULE_ID_IPV4,
210 .dst_ip = filter->dst_ip,
211 .dst_ip_msk = (__force __be32)-1,
212 .src_ip = filter->src_ip,
213 .src_ip_msk = (__force __be32)-1,
217 struct mlx4_spec_list spec_eth = {
218 .id = MLX4_NET_TRANS_RULE_ID_ETH,
220 struct mlx4_net_trans_rule rule = {
221 .list = LIST_HEAD_INIT(rule.list),
222 .queue_mode = MLX4_NET_TRANS_Q_LIFO,
225 .promisc_mode = MLX4_FS_REGULAR,
227 .priority = MLX4_DOMAIN_RFS,
230 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
232 if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) {
233 en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
237 list_add_tail(&spec_eth.list, &rule.list);
238 list_add_tail(&spec_ip.list, &rule.list);
239 list_add_tail(&spec_tcp_udp.list, &rule.list);
241 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
242 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
243 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
245 filter->activated = 0;
247 if (filter->reg_id) {
248 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
249 if (rc && rc != -ENOENT)
250 en_err(priv, "Error detaching flow. rc = %d\n", rc);
253 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id);
255 en_err(priv, "Error attaching flow. err = %d\n", rc);
258 mlx4_en_filter_rfs_expire(priv);
260 filter->activated = 1;
263 static inline struct hlist_head *
264 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
265 __be16 src_port, __be16 dst_port)
270 l = (__force unsigned long)src_port |
271 ((__force unsigned long)dst_port << 2);
272 l ^= (__force unsigned long)(src_ip ^ dst_ip);
274 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT);
276 return &priv->filter_hash[bucket_idx];
279 static struct mlx4_en_filter *
280 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
281 __be32 dst_ip, u8 ip_proto, __be16 src_port,
282 __be16 dst_port, u32 flow_id)
284 struct mlx4_en_filter *filter = NULL;
286 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC);
291 filter->rxq_index = rxq_index;
292 INIT_WORK(&filter->work, mlx4_en_filter_work);
294 filter->src_ip = src_ip;
295 filter->dst_ip = dst_ip;
296 filter->ip_proto = ip_proto;
297 filter->src_port = src_port;
298 filter->dst_port = dst_port;
300 filter->flow_id = flow_id;
302 filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
304 list_add_tail(&filter->next, &priv->filters);
305 hlist_add_head(&filter->filter_chain,
306 filter_hash_bucket(priv, src_ip, dst_ip, src_port,
312 static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
314 struct mlx4_en_priv *priv = filter->priv;
317 list_del(&filter->next);
319 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id);
320 if (rc && rc != -ENOENT)
321 en_err(priv, "Error detaching flow. rc = %d\n", rc);
326 static inline struct mlx4_en_filter *
327 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
328 u8 ip_proto, __be16 src_port, __be16 dst_port)
330 struct mlx4_en_filter *filter;
331 struct mlx4_en_filter *ret = NULL;
333 hlist_for_each_entry(filter,
334 filter_hash_bucket(priv, src_ip, dst_ip,
337 if (filter->src_ip == src_ip &&
338 filter->dst_ip == dst_ip &&
339 filter->ip_proto == ip_proto &&
340 filter->src_port == src_port &&
341 filter->dst_port == dst_port) {
351 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
352 u16 rxq_index, u32 flow_id)
354 struct mlx4_en_priv *priv = netdev_priv(net_dev);
355 struct mlx4_en_filter *filter;
356 const struct iphdr *ip;
363 int nhoff = skb_network_offset(skb);
366 if (skb->protocol != htons(ETH_P_IP))
367 return -EPROTONOSUPPORT;
369 ip = (const struct iphdr *)(skb->data + nhoff);
370 if (ip_is_fragment(ip))
371 return -EPROTONOSUPPORT;
373 if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
374 return -EPROTONOSUPPORT;
375 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
377 ip_proto = ip->protocol;
383 spin_lock_bh(&priv->filters_lock);
384 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
387 if (filter->rxq_index == rxq_index)
390 filter->rxq_index = rxq_index;
392 filter = mlx4_en_filter_alloc(priv, rxq_index,
393 src_ip, dst_ip, ip_proto,
394 src_port, dst_port, flow_id);
401 queue_work(priv->mdev->workqueue, &filter->work);
406 spin_unlock_bh(&priv->filters_lock);
411 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
413 struct mlx4_en_filter *filter, *tmp;
416 spin_lock_bh(&priv->filters_lock);
417 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
418 list_move(&filter->next, &del_list);
419 hlist_del(&filter->filter_chain);
421 spin_unlock_bh(&priv->filters_lock);
423 list_for_each_entry_safe(filter, tmp, &del_list, next) {
424 cancel_work_sync(&filter->work);
425 mlx4_en_filter_free(filter);
429 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv)
431 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL;
435 spin_lock_bh(&priv->filters_lock);
436 list_for_each_entry_safe(filter, tmp, &priv->filters, next) {
437 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA)
440 if (filter->activated &&
441 !work_pending(&filter->work) &&
442 rps_may_expire_flow(priv->dev,
443 filter->rxq_index, filter->flow_id,
445 list_move(&filter->next, &del_list);
446 hlist_del(&filter->filter_chain);
448 last_filter = filter;
453 if (last_filter && (&last_filter->next != priv->filters.next))
454 list_move(&priv->filters, &last_filter->next);
456 spin_unlock_bh(&priv->filters_lock);
458 list_for_each_entry_safe(filter, tmp, &del_list, next)
459 mlx4_en_filter_free(filter);
463 static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
464 __be16 proto, u16 vid)
466 struct mlx4_en_priv *priv = netdev_priv(dev);
467 struct mlx4_en_dev *mdev = priv->mdev;
471 en_dbg(HW, priv, "adding VLAN:%d\n", vid);
473 set_bit(vid, priv->active_vlans);
475 /* Add VID to port VLAN filter */
476 mutex_lock(&mdev->state_lock);
477 if (mdev->device_up && priv->port_up) {
478 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
480 en_err(priv, "Failed configuring VLAN filter\n");
484 err = mlx4_register_vlan(mdev->dev, priv->port, vid, &idx);
486 en_dbg(HW, priv, "Failed adding vlan %d\n", vid);
489 mutex_unlock(&mdev->state_lock);
493 static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
494 __be16 proto, u16 vid)
496 struct mlx4_en_priv *priv = netdev_priv(dev);
497 struct mlx4_en_dev *mdev = priv->mdev;
500 en_dbg(HW, priv, "Killing VID:%d\n", vid);
502 clear_bit(vid, priv->active_vlans);
504 /* Remove VID from port VLAN filter */
505 mutex_lock(&mdev->state_lock);
506 mlx4_unregister_vlan(mdev->dev, priv->port, vid);
508 if (mdev->device_up && priv->port_up) {
509 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
511 en_err(priv, "Failed configuring VLAN filter\n");
513 mutex_unlock(&mdev->state_lock);
518 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
521 for (i = ETH_ALEN - 1; i >= 0; --i) {
522 dst_mac[i] = src_mac & 0xff;
525 memset(&dst_mac[ETH_ALEN], 0, 2);
529 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *addr,
530 int qpn, u64 *reg_id)
534 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
535 priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
536 return 0; /* do nothing */
538 err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
539 MLX4_DOMAIN_NIC, reg_id);
541 en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
544 en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id);
549 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv,
550 unsigned char *mac, int *qpn, u64 *reg_id)
552 struct mlx4_en_dev *mdev = priv->mdev;
553 struct mlx4_dev *dev = mdev->dev;
556 switch (dev->caps.steering_mode) {
557 case MLX4_STEERING_MODE_B0: {
562 memcpy(&gid[10], mac, ETH_ALEN);
565 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
568 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
569 struct mlx4_spec_list spec_eth = { {NULL} };
570 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
572 struct mlx4_net_trans_rule rule = {
573 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
576 .promisc_mode = MLX4_FS_REGULAR,
577 .priority = MLX4_DOMAIN_NIC,
580 rule.port = priv->port;
582 INIT_LIST_HEAD(&rule.list);
584 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH;
585 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN);
586 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
587 list_add_tail(&spec_eth.list, &rule.list);
589 err = mlx4_flow_attach(dev, &rule, reg_id);
596 en_warn(priv, "Failed Attaching Unicast\n");
601 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv,
602 unsigned char *mac, int qpn, u64 reg_id)
604 struct mlx4_en_dev *mdev = priv->mdev;
605 struct mlx4_dev *dev = mdev->dev;
607 switch (dev->caps.steering_mode) {
608 case MLX4_STEERING_MODE_B0: {
613 memcpy(&gid[10], mac, ETH_ALEN);
616 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
619 case MLX4_STEERING_MODE_DEVICE_MANAGED: {
620 mlx4_flow_detach(dev, reg_id);
624 en_err(priv, "Invalid steering mode.\n");
628 static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
630 struct mlx4_en_dev *mdev = priv->mdev;
631 struct mlx4_dev *dev = mdev->dev;
634 int *qpn = &priv->base_qpn;
635 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
637 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n",
638 priv->dev->dev_addr);
639 index = mlx4_register_mac(dev, priv->port, mac);
642 en_err(priv, "Failed adding MAC: %pM\n",
643 priv->dev->dev_addr);
647 en_info(priv, "Steering Mode %d\n", dev->caps.steering_mode);
649 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
650 int base_qpn = mlx4_get_base_qpn(dev, priv->port);
651 *qpn = base_qpn + index;
655 err = mlx4_qp_reserve_range(dev, 1, 1, qpn, MLX4_RESERVE_A0_QP,
656 MLX4_RES_USAGE_DRIVER);
657 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn);
659 en_err(priv, "Failed to reserve qp for mac registration\n");
660 mlx4_unregister_mac(dev, priv->port, mac);
667 static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
669 struct mlx4_en_dev *mdev = priv->mdev;
670 struct mlx4_dev *dev = mdev->dev;
671 int qpn = priv->base_qpn;
673 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) {
674 u64 mac = mlx4_mac_to_u64(priv->dev->dev_addr);
675 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n",
676 priv->dev->dev_addr);
677 mlx4_unregister_mac(dev, priv->port, mac);
679 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n",
681 mlx4_qp_release_range(dev, qpn, 1);
682 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
686 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
687 unsigned char *new_mac, unsigned char *prev_mac)
689 struct mlx4_en_dev *mdev = priv->mdev;
690 struct mlx4_dev *dev = mdev->dev;
692 u64 new_mac_u64 = mlx4_mac_to_u64(new_mac);
694 if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) {
695 struct hlist_head *bucket;
696 unsigned int mac_hash;
697 struct mlx4_mac_entry *entry;
698 struct hlist_node *tmp;
699 u64 prev_mac_u64 = mlx4_mac_to_u64(prev_mac);
701 bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]];
702 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
703 if (ether_addr_equal_64bits(entry->mac, prev_mac)) {
704 mlx4_en_uc_steer_release(priv, entry->mac,
706 mlx4_unregister_mac(dev, priv->port,
708 hlist_del_rcu(&entry->hlist);
710 memcpy(entry->mac, new_mac, ETH_ALEN);
712 mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX];
713 hlist_add_head_rcu(&entry->hlist,
714 &priv->mac_hash[mac_hash]);
715 mlx4_register_mac(dev, priv->port, new_mac_u64);
716 err = mlx4_en_uc_steer_add(priv, new_mac,
721 if (priv->tunnel_reg_id) {
722 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
723 priv->tunnel_reg_id = 0;
725 err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn,
726 &priv->tunnel_reg_id);
733 return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64);
736 static void mlx4_en_update_user_mac(struct mlx4_en_priv *priv,
737 unsigned char new_mac[ETH_ALEN + 2])
739 struct mlx4_en_dev *mdev = priv->mdev;
742 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_USER_MAC_EN))
745 err = mlx4_SET_PORT_user_mac(mdev->dev, priv->port, new_mac);
747 en_err(priv, "Failed to pass user MAC(%pM) to Firmware for port %d, with error %d\n",
748 new_mac, priv->port, err);
751 static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv,
752 unsigned char new_mac[ETH_ALEN + 2])
757 /* Remove old MAC and insert the new one */
758 err = mlx4_en_replace_mac(priv, priv->base_qpn,
759 new_mac, priv->current_mac);
761 en_err(priv, "Failed changing HW MAC address\n");
763 en_dbg(HW, priv, "Port is down while registering mac, exiting...\n");
766 memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac));
771 static int mlx4_en_set_mac(struct net_device *dev, void *addr)
773 struct mlx4_en_priv *priv = netdev_priv(dev);
774 struct mlx4_en_dev *mdev = priv->mdev;
775 struct sockaddr *saddr = addr;
776 unsigned char new_mac[ETH_ALEN + 2];
779 if (!is_valid_ether_addr(saddr->sa_data))
780 return -EADDRNOTAVAIL;
782 mutex_lock(&mdev->state_lock);
783 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
784 err = mlx4_en_do_set_mac(priv, new_mac);
788 memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
789 mlx4_en_update_user_mac(priv, new_mac);
791 mutex_unlock(&mdev->state_lock);
796 static void mlx4_en_clear_list(struct net_device *dev)
798 struct mlx4_en_priv *priv = netdev_priv(dev);
799 struct mlx4_en_mc_list *tmp, *mc_to_del;
801 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) {
802 list_del(&mc_to_del->list);
807 static void mlx4_en_cache_mclist(struct net_device *dev)
809 struct mlx4_en_priv *priv = netdev_priv(dev);
810 struct netdev_hw_addr *ha;
811 struct mlx4_en_mc_list *tmp;
813 mlx4_en_clear_list(dev);
814 netdev_for_each_mc_addr(ha, dev) {
815 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
817 mlx4_en_clear_list(dev);
820 memcpy(tmp->addr, ha->addr, ETH_ALEN);
821 list_add_tail(&tmp->list, &priv->mc_list);
825 static void update_mclist_flags(struct mlx4_en_priv *priv,
826 struct list_head *dst,
827 struct list_head *src)
829 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc;
832 /* Find all the entries that should be removed from dst,
833 * These are the entries that are not found in src
835 list_for_each_entry(dst_tmp, dst, list) {
837 list_for_each_entry(src_tmp, src, list) {
838 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
844 dst_tmp->action = MCLIST_REM;
847 /* Add entries that exist in src but not in dst
848 * mark them as need to add
850 list_for_each_entry(src_tmp, src, list) {
852 list_for_each_entry(dst_tmp, dst, list) {
853 if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) {
854 dst_tmp->action = MCLIST_NONE;
860 new_mc = kmemdup(src_tmp,
861 sizeof(struct mlx4_en_mc_list),
866 new_mc->action = MCLIST_ADD;
867 list_add_tail(&new_mc->list, dst);
872 static void mlx4_en_set_rx_mode(struct net_device *dev)
874 struct mlx4_en_priv *priv = netdev_priv(dev);
879 queue_work(priv->mdev->workqueue, &priv->rx_mode_task);
882 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv,
883 struct mlx4_en_dev *mdev)
887 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) {
888 if (netif_msg_rx_status(priv))
889 en_warn(priv, "Entering promiscuous mode\n");
890 priv->flags |= MLX4_EN_FLAG_PROMISC;
892 /* Enable promiscouos mode */
893 switch (mdev->dev->caps.steering_mode) {
894 case MLX4_STEERING_MODE_DEVICE_MANAGED:
895 err = mlx4_flow_steer_promisc_add(mdev->dev,
898 MLX4_FS_ALL_DEFAULT);
900 en_err(priv, "Failed enabling promiscuous mode\n");
901 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
904 case MLX4_STEERING_MODE_B0:
905 err = mlx4_unicast_promisc_add(mdev->dev,
909 en_err(priv, "Failed enabling unicast promiscuous mode\n");
911 /* Add the default qp number as multicast
914 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
915 err = mlx4_multicast_promisc_add(mdev->dev,
919 en_err(priv, "Failed enabling multicast promiscuous mode\n");
920 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
924 case MLX4_STEERING_MODE_A0:
925 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
930 en_err(priv, "Failed enabling promiscuous mode\n");
934 /* Disable port multicast filter (unconditionally) */
935 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
936 0, MLX4_MCAST_DISABLE);
938 en_err(priv, "Failed disabling multicast filter\n");
942 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv,
943 struct mlx4_en_dev *mdev)
947 if (netif_msg_rx_status(priv))
948 en_warn(priv, "Leaving promiscuous mode\n");
949 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
951 /* Disable promiscouos mode */
952 switch (mdev->dev->caps.steering_mode) {
953 case MLX4_STEERING_MODE_DEVICE_MANAGED:
954 err = mlx4_flow_steer_promisc_remove(mdev->dev,
956 MLX4_FS_ALL_DEFAULT);
958 en_err(priv, "Failed disabling promiscuous mode\n");
959 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
962 case MLX4_STEERING_MODE_B0:
963 err = mlx4_unicast_promisc_remove(mdev->dev,
967 en_err(priv, "Failed disabling unicast promiscuous mode\n");
968 /* Disable Multicast promisc */
969 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
970 err = mlx4_multicast_promisc_remove(mdev->dev,
974 en_err(priv, "Failed disabling multicast promiscuous mode\n");
975 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
979 case MLX4_STEERING_MODE_A0:
980 err = mlx4_SET_PORT_qpn_calc(mdev->dev,
984 en_err(priv, "Failed disabling promiscuous mode\n");
989 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv,
990 struct net_device *dev,
991 struct mlx4_en_dev *mdev)
993 struct mlx4_en_mc_list *mclist, *tmp;
995 u8 mc_list[16] = {0};
998 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
999 if (dev->flags & IFF_ALLMULTI) {
1000 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
1001 0, MLX4_MCAST_DISABLE);
1003 en_err(priv, "Failed disabling multicast filter\n");
1005 /* Add the default qp number as multicast promisc */
1006 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) {
1007 switch (mdev->dev->caps.steering_mode) {
1008 case MLX4_STEERING_MODE_DEVICE_MANAGED:
1009 err = mlx4_flow_steer_promisc_add(mdev->dev,
1012 MLX4_FS_MC_DEFAULT);
1015 case MLX4_STEERING_MODE_B0:
1016 err = mlx4_multicast_promisc_add(mdev->dev,
1021 case MLX4_STEERING_MODE_A0:
1025 en_err(priv, "Failed entering multicast promisc mode\n");
1026 priv->flags |= MLX4_EN_FLAG_MC_PROMISC;
1029 /* Disable Multicast promisc */
1030 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1031 switch (mdev->dev->caps.steering_mode) {
1032 case MLX4_STEERING_MODE_DEVICE_MANAGED:
1033 err = mlx4_flow_steer_promisc_remove(mdev->dev,
1035 MLX4_FS_MC_DEFAULT);
1038 case MLX4_STEERING_MODE_B0:
1039 err = mlx4_multicast_promisc_remove(mdev->dev,
1044 case MLX4_STEERING_MODE_A0:
1048 en_err(priv, "Failed disabling multicast promiscuous mode\n");
1049 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1052 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
1053 0, MLX4_MCAST_DISABLE);
1055 en_err(priv, "Failed disabling multicast filter\n");
1057 /* Flush mcast filter and init it with broadcast address */
1058 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST,
1059 1, MLX4_MCAST_CONFIG);
1061 /* Update multicast list - we cache all addresses so they won't
1062 * change while HW is updated holding the command semaphor */
1063 netif_addr_lock_bh(dev);
1064 mlx4_en_cache_mclist(dev);
1065 netif_addr_unlock_bh(dev);
1066 list_for_each_entry(mclist, &priv->mc_list, list) {
1067 mcast_addr = mlx4_mac_to_u64(mclist->addr);
1068 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port,
1069 mcast_addr, 0, MLX4_MCAST_CONFIG);
1071 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0,
1072 0, MLX4_MCAST_ENABLE);
1074 en_err(priv, "Failed enabling multicast filter\n");
1076 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list);
1077 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1078 if (mclist->action == MCLIST_REM) {
1079 /* detach this address and delete from list */
1080 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1081 mc_list[5] = priv->port;
1082 err = mlx4_multicast_detach(mdev->dev,
1083 priv->rss_map.indir_qp,
1088 en_err(priv, "Fail to detach multicast address\n");
1090 if (mclist->tunnel_reg_id) {
1091 err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id);
1093 en_err(priv, "Failed to detach multicast address\n");
1096 /* remove from list */
1097 list_del(&mclist->list);
1099 } else if (mclist->action == MCLIST_ADD) {
1100 /* attach the address */
1101 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1102 /* needed for B0 steering support */
1103 mc_list[5] = priv->port;
1104 err = mlx4_multicast_attach(mdev->dev,
1105 priv->rss_map.indir_qp,
1111 en_err(priv, "Fail to attach multicast address\n");
1113 err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn,
1114 &mclist->tunnel_reg_id);
1116 en_err(priv, "Failed to attach multicast address\n");
1122 static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv,
1123 struct net_device *dev,
1124 struct mlx4_en_dev *mdev)
1126 struct netdev_hw_addr *ha;
1127 struct mlx4_mac_entry *entry;
1128 struct hlist_node *tmp;
1132 struct hlist_head *bucket;
1137 /* Note that we do not need to protect our mac_hash traversal with rcu,
1138 * since all modification code is protected by mdev->state_lock
1141 /* find what to remove */
1142 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1143 bucket = &priv->mac_hash[i];
1144 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1146 netdev_for_each_uc_addr(ha, dev) {
1147 if (ether_addr_equal_64bits(entry->mac,
1154 /* MAC address of the port is not in uc list */
1155 if (ether_addr_equal_64bits(entry->mac,
1160 mac = mlx4_mac_to_u64(entry->mac);
1161 mlx4_en_uc_steer_release(priv, entry->mac,
1164 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1166 hlist_del_rcu(&entry->hlist);
1167 kfree_rcu(entry, rcu);
1168 en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n",
1169 entry->mac, priv->port);
1175 /* if we didn't remove anything, there is no use in trying to add
1176 * again once we are in a forced promisc mode state
1178 if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed)
1181 prev_flags = priv->flags;
1182 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC;
1184 /* find what to add */
1185 netdev_for_each_uc_addr(ha, dev) {
1187 bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]];
1188 hlist_for_each_entry(entry, bucket, hlist) {
1189 if (ether_addr_equal_64bits(entry->mac, ha->addr)) {
1196 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1198 en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n",
1199 ha->addr, priv->port);
1200 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1203 mac = mlx4_mac_to_u64(ha->addr);
1204 memcpy(entry->mac, ha->addr, ETH_ALEN);
1205 err = mlx4_register_mac(mdev->dev, priv->port, mac);
1207 en_err(priv, "Failed registering MAC %pM on port %d: %d\n",
1208 ha->addr, priv->port, err);
1210 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1213 err = mlx4_en_uc_steer_add(priv, ha->addr,
1217 en_err(priv, "Failed adding MAC %pM on port %d: %d\n",
1218 ha->addr, priv->port, err);
1219 mlx4_unregister_mac(mdev->dev, priv->port, mac);
1221 priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC;
1224 unsigned int mac_hash;
1225 en_dbg(DRV, priv, "Added MAC %pM on port:%d\n",
1226 ha->addr, priv->port);
1227 mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX];
1228 bucket = &priv->mac_hash[mac_hash];
1229 hlist_add_head_rcu(&entry->hlist, bucket);
1234 if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1235 en_warn(priv, "Forcing promiscuous mode on port:%d\n",
1237 } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) {
1238 en_warn(priv, "Stop forcing promiscuous mode on port:%d\n",
1243 static void mlx4_en_do_set_rx_mode(struct work_struct *work)
1245 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1247 struct mlx4_en_dev *mdev = priv->mdev;
1248 struct net_device *dev = priv->dev;
1250 mutex_lock(&mdev->state_lock);
1251 if (!mdev->device_up) {
1252 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n");
1255 if (!priv->port_up) {
1256 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n");
1260 if (!netif_carrier_ok(dev)) {
1261 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
1262 if (priv->port_state.link_state) {
1263 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
1264 netif_carrier_on(dev);
1265 en_dbg(LINK, priv, "Link Up\n");
1270 if (dev->priv_flags & IFF_UNICAST_FLT)
1271 mlx4_en_do_uc_filter(priv, dev, mdev);
1273 /* Promsicuous mode: disable all filters */
1274 if ((dev->flags & IFF_PROMISC) ||
1275 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) {
1276 mlx4_en_set_promisc_mode(priv, mdev);
1280 /* Not in promiscuous mode */
1281 if (priv->flags & MLX4_EN_FLAG_PROMISC)
1282 mlx4_en_clear_promisc_mode(priv, mdev);
1284 mlx4_en_do_multicast(priv, dev, mdev);
1286 mutex_unlock(&mdev->state_lock);
1289 #ifdef CONFIG_NET_POLL_CONTROLLER
1290 static void mlx4_en_netpoll(struct net_device *dev)
1292 struct mlx4_en_priv *priv = netdev_priv(dev);
1293 struct mlx4_en_cq *cq;
1296 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
1297 cq = priv->tx_cq[TX][i];
1298 napi_schedule(&cq->napi);
1303 static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv)
1307 int *qpn = &priv->base_qpn;
1308 struct mlx4_mac_entry *entry;
1310 err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id);
1314 err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn,
1315 &priv->tunnel_reg_id);
1319 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
1325 memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
1326 memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
1327 entry->reg_id = reg_id;
1328 hlist_add_head_rcu(&entry->hlist,
1329 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]);
1334 if (priv->tunnel_reg_id)
1335 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1338 mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id);
1342 static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv *priv)
1346 int qpn = priv->base_qpn;
1347 struct hlist_head *bucket;
1348 struct hlist_node *tmp;
1349 struct mlx4_mac_entry *entry;
1351 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) {
1352 bucket = &priv->mac_hash[i];
1353 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) {
1354 mac = mlx4_mac_to_u64(entry->mac);
1355 en_dbg(DRV, priv, "Registering MAC:%pM for deleting\n",
1357 mlx4_en_uc_steer_release(priv, entry->mac,
1358 qpn, entry->reg_id);
1360 mlx4_unregister_mac(priv->mdev->dev, priv->port, mac);
1361 hlist_del_rcu(&entry->hlist);
1362 kfree_rcu(entry, rcu);
1366 if (priv->tunnel_reg_id) {
1367 mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id);
1368 priv->tunnel_reg_id = 0;
1372 static void mlx4_en_tx_timeout(struct net_device *dev)
1374 struct mlx4_en_priv *priv = netdev_priv(dev);
1375 struct mlx4_en_dev *mdev = priv->mdev;
1378 if (netif_msg_timer(priv))
1379 en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
1381 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
1382 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][i];
1384 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
1386 en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1387 i, tx_ring->qpn, tx_ring->sp_cqn,
1388 tx_ring->cons, tx_ring->prod);
1391 priv->port_stats.tx_timeout++;
1392 en_dbg(DRV, priv, "Scheduling watchdog\n");
1393 queue_work(mdev->workqueue, &priv->watchdog_task);
1398 mlx4_en_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1400 struct mlx4_en_priv *priv = netdev_priv(dev);
1402 spin_lock_bh(&priv->stats_lock);
1403 mlx4_en_fold_software_stats(dev);
1404 netdev_stats_to_stats64(stats, &dev->stats);
1405 spin_unlock_bh(&priv->stats_lock);
1408 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
1410 struct mlx4_en_cq *cq;
1413 /* If we haven't received a specific coalescing setting
1414 * (module param), we set the moderation parameters as follows:
1415 * - moder_cnt is set to the number of mtu sized packets to
1416 * satisfy our coalescing target.
1417 * - moder_time is set to a fixed value.
1419 priv->rx_frames = MLX4_EN_RX_COAL_TARGET;
1420 priv->rx_usecs = MLX4_EN_RX_COAL_TIME;
1421 priv->tx_frames = MLX4_EN_TX_COAL_PKTS;
1422 priv->tx_usecs = MLX4_EN_TX_COAL_TIME;
1423 en_dbg(INTR, priv, "Default coalescing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1424 priv->dev->mtu, priv->rx_frames, priv->rx_usecs);
1426 /* Setup cq moderation params */
1427 for (i = 0; i < priv->rx_ring_num; i++) {
1428 cq = priv->rx_cq[i];
1429 cq->moder_cnt = priv->rx_frames;
1430 cq->moder_time = priv->rx_usecs;
1431 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1432 priv->last_moder_packets[i] = 0;
1433 priv->last_moder_bytes[i] = 0;
1436 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
1437 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1438 cq = priv->tx_cq[t][i];
1439 cq->moder_cnt = priv->tx_frames;
1440 cq->moder_time = priv->tx_usecs;
1444 /* Reset auto-moderation params */
1445 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW;
1446 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW;
1447 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH;
1448 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH;
1449 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL;
1450 priv->adaptive_rx_coal = 1;
1451 priv->last_moder_jiffies = 0;
1452 priv->last_moder_tx_packets = 0;
1455 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
1457 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies);
1458 u32 pkt_rate_high, pkt_rate_low;
1459 struct mlx4_en_cq *cq;
1460 unsigned long packets;
1462 unsigned long avg_pkt_size;
1463 unsigned long rx_packets;
1464 unsigned long rx_bytes;
1465 unsigned long rx_pkt_diff;
1469 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ)
1472 pkt_rate_low = READ_ONCE(priv->pkt_rate_low);
1473 pkt_rate_high = READ_ONCE(priv->pkt_rate_high);
1475 for (ring = 0; ring < priv->rx_ring_num; ring++) {
1476 rx_packets = READ_ONCE(priv->rx_ring[ring]->packets);
1477 rx_bytes = READ_ONCE(priv->rx_ring[ring]->bytes);
1479 rx_pkt_diff = rx_packets - priv->last_moder_packets[ring];
1480 packets = rx_pkt_diff;
1481 rate = packets * HZ / period;
1482 avg_pkt_size = packets ? (rx_bytes -
1483 priv->last_moder_bytes[ring]) / packets : 0;
1485 /* Apply auto-moderation only when packet rate
1486 * exceeds a rate that it matters */
1487 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) &&
1488 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) {
1489 if (rate <= pkt_rate_low)
1490 moder_time = priv->rx_usecs_low;
1491 else if (rate >= pkt_rate_high)
1492 moder_time = priv->rx_usecs_high;
1494 moder_time = (rate - pkt_rate_low) *
1495 (priv->rx_usecs_high - priv->rx_usecs_low) /
1496 (pkt_rate_high - pkt_rate_low) +
1499 moder_time = priv->rx_usecs_low;
1502 cq = priv->rx_cq[ring];
1503 if (moder_time != priv->last_moder_time[ring] ||
1504 cq->moder_cnt != priv->rx_frames) {
1505 priv->last_moder_time[ring] = moder_time;
1506 cq->moder_time = moder_time;
1507 cq->moder_cnt = priv->rx_frames;
1508 err = mlx4_en_set_cq_moder(priv, cq);
1510 en_err(priv, "Failed modifying moderation for cq:%d\n",
1513 priv->last_moder_packets[ring] = rx_packets;
1514 priv->last_moder_bytes[ring] = rx_bytes;
1517 priv->last_moder_jiffies = jiffies;
1520 static void mlx4_en_do_get_stats(struct work_struct *work)
1522 struct delayed_work *delay = to_delayed_work(work);
1523 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1525 struct mlx4_en_dev *mdev = priv->mdev;
1528 mutex_lock(&mdev->state_lock);
1529 if (mdev->device_up) {
1530 if (priv->port_up) {
1531 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
1533 en_dbg(HW, priv, "Could not update stats\n");
1535 mlx4_en_auto_moderation(priv);
1538 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
1540 if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
1541 mlx4_en_do_set_mac(priv, priv->current_mac);
1542 mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
1544 mutex_unlock(&mdev->state_lock);
1547 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1550 static void mlx4_en_service_task(struct work_struct *work)
1552 struct delayed_work *delay = to_delayed_work(work);
1553 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv,
1555 struct mlx4_en_dev *mdev = priv->mdev;
1557 mutex_lock(&mdev->state_lock);
1558 if (mdev->device_up) {
1559 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
1560 mlx4_en_ptp_overflow_check(mdev);
1562 mlx4_en_recover_from_oom(priv);
1563 queue_delayed_work(mdev->workqueue, &priv->service_task,
1564 SERVICE_TASK_DELAY);
1566 mutex_unlock(&mdev->state_lock);
1569 static void mlx4_en_linkstate(struct work_struct *work)
1571 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
1573 struct mlx4_en_dev *mdev = priv->mdev;
1574 int linkstate = priv->link_state;
1576 mutex_lock(&mdev->state_lock);
1577 /* If observable port state changed set carrier state and
1578 * report to system log */
1579 if (priv->last_link_state != linkstate) {
1580 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
1581 en_info(priv, "Link Down\n");
1582 netif_carrier_off(priv->dev);
1584 en_info(priv, "Link Up\n");
1585 netif_carrier_on(priv->dev);
1588 priv->last_link_state = linkstate;
1589 mutex_unlock(&mdev->state_lock);
1592 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1594 struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx];
1595 int numa_node = priv->mdev->dev->numa_node;
1597 if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL))
1600 cpumask_set_cpu(cpumask_local_spread(ring_idx, numa_node),
1601 ring->affinity_mask);
1605 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx)
1607 free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask);
1610 static void mlx4_en_init_recycle_ring(struct mlx4_en_priv *priv,
1613 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX_XDP][tx_ring_idx];
1614 int rr_index = tx_ring_idx;
1616 tx_ring->free_tx_desc = mlx4_en_recycle_tx_desc;
1617 tx_ring->recycle_ring = priv->rx_ring[rr_index];
1618 en_dbg(DRV, priv, "Set tx_ring[%d][%d]->recycle_ring = rx_ring[%d]\n",
1619 TX_XDP, tx_ring_idx, rr_index);
1622 int mlx4_en_start_port(struct net_device *dev)
1624 struct mlx4_en_priv *priv = netdev_priv(dev);
1625 struct mlx4_en_dev *mdev = priv->mdev;
1626 struct mlx4_en_cq *cq;
1627 struct mlx4_en_tx_ring *tx_ring;
1632 u8 mc_list[16] = {0};
1634 if (priv->port_up) {
1635 en_dbg(DRV, priv, "start port called while port already up\n");
1639 INIT_LIST_HEAD(&priv->mc_list);
1640 INIT_LIST_HEAD(&priv->curr_list);
1641 INIT_LIST_HEAD(&priv->ethtool_list);
1642 memset(&priv->ethtool_rules[0], 0,
1643 sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES);
1645 /* Calculate Rx buf size */
1646 dev->mtu = min(dev->mtu, priv->max_mtu);
1647 mlx4_en_calc_rx_buf(dev);
1648 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size);
1650 /* Configure rx cq's and rings */
1651 err = mlx4_en_activate_rx_rings(priv);
1653 en_err(priv, "Failed to activate RX rings\n");
1656 for (i = 0; i < priv->rx_ring_num; i++) {
1657 cq = priv->rx_cq[i];
1659 err = mlx4_en_init_affinity_hint(priv, i);
1661 en_err(priv, "Failed preparing IRQ affinity hint\n");
1665 err = mlx4_en_activate_cq(priv, cq, i);
1667 en_err(priv, "Failed activating Rx CQ\n");
1668 mlx4_en_free_affinity_hint(priv, i);
1672 for (j = 0; j < cq->size; j++) {
1673 struct mlx4_cqe *cqe = NULL;
1675 cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) +
1677 cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK;
1680 err = mlx4_en_set_cq_moder(priv, cq);
1682 en_err(priv, "Failed setting cq moderation parameters\n");
1683 mlx4_en_deactivate_cq(priv, cq);
1684 mlx4_en_free_affinity_hint(priv, i);
1687 mlx4_en_arm_cq(priv, cq);
1688 priv->rx_ring[i]->cqn = cq->mcq.cqn;
1693 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
1694 err = mlx4_en_get_qp(priv);
1696 en_err(priv, "Failed getting eth qp\n");
1699 mdev->mac_removed[priv->port] = 0;
1701 priv->counter_index =
1702 mlx4_get_default_counter_index(mdev->dev, priv->port);
1704 err = mlx4_en_config_rss_steer(priv);
1706 en_err(priv, "Failed configuring rss steering\n");
1710 err = mlx4_en_create_drop_qp(priv);
1714 /* Configure tx cq's and rings */
1715 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
1716 u8 num_tx_rings_p_up = t == TX ?
1717 priv->num_tx_rings_p_up : priv->tx_ring_num[t];
1719 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1721 cq = priv->tx_cq[t][i];
1722 err = mlx4_en_activate_cq(priv, cq, i);
1724 en_err(priv, "Failed allocating Tx CQ\n");
1727 err = mlx4_en_set_cq_moder(priv, cq);
1729 en_err(priv, "Failed setting cq moderation parameters\n");
1730 mlx4_en_deactivate_cq(priv, cq);
1734 "Resetting index of collapsed CQ:%d to -1\n", i);
1735 cq->buf->wqe_index = cpu_to_be16(0xffff);
1737 /* Configure ring */
1738 tx_ring = priv->tx_ring[t][i];
1739 err = mlx4_en_activate_tx_ring(priv, tx_ring,
1741 i / num_tx_rings_p_up);
1743 en_err(priv, "Failed allocating Tx ring\n");
1744 mlx4_en_deactivate_cq(priv, cq);
1748 tx_ring->tx_queue = netdev_get_tx_queue(dev, i);
1749 tx_ring->recycle_ring = NULL;
1751 /* Arm CQ for TX completions */
1752 mlx4_en_arm_cq(priv, cq);
1755 mlx4_en_init_recycle_ring(priv, i);
1756 /* XDP TX CQ should never be armed */
1759 /* Set initial ownership of all Tx TXBBs to SW (1) */
1760 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE)
1761 *((u32 *)(tx_ring->buf + j)) = 0xffffffff;
1765 /* Configure port */
1766 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1767 priv->rx_skb_size + ETH_FCS_LEN,
1768 priv->prof->tx_pause,
1770 priv->prof->rx_pause,
1771 priv->prof->rx_ppp);
1773 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
1778 err = mlx4_SET_PORT_user_mtu(mdev->dev, priv->port, dev->mtu);
1780 en_err(priv, "Failed to pass user MTU(%d) to Firmware for port %d, with error %d\n",
1781 dev->mtu, priv->port, err);
1785 /* Set default qp number */
1786 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0);
1788 en_err(priv, "Failed setting default qp numbers\n");
1792 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
1793 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
1795 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
1802 en_dbg(HW, priv, "Initializing port\n");
1803 err = mlx4_INIT_PORT(mdev->dev, priv->port);
1805 en_err(priv, "Failed Initializing port\n");
1809 /* Set Unicast and VXLAN steering rules */
1810 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0 &&
1811 mlx4_en_set_rss_steer_rules(priv))
1812 mlx4_warn(mdev, "Failed setting steering rules\n");
1814 /* Attach rx QP to bradcast address */
1815 eth_broadcast_addr(&mc_list[10]);
1816 mc_list[5] = priv->port; /* needed for B0 steering support */
1817 if (mlx4_multicast_attach(mdev->dev, priv->rss_map.indir_qp, mc_list,
1818 priv->port, 0, MLX4_PROT_ETH,
1819 &priv->broadcast_id))
1820 mlx4_warn(mdev, "Failed Attaching Broadcast\n");
1822 /* Must redo promiscuous mode setup. */
1823 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
1825 /* Schedule multicast task to populate multicast list */
1826 queue_work(mdev->workqueue, &priv->rx_mode_task);
1828 if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
1829 udp_tunnel_get_rx_info(dev);
1831 priv->port_up = true;
1833 /* Process all completions if exist to prevent
1834 * the queues freezing if they are full
1836 for (i = 0; i < priv->rx_ring_num; i++) {
1838 napi_schedule(&priv->rx_cq[i]->napi);
1842 netif_tx_start_all_queues(dev);
1843 netif_device_attach(dev);
1848 if (t == MLX4_EN_NUM_TX_TYPES) {
1850 i = priv->tx_ring_num[t];
1854 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]);
1855 mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]);
1859 i = priv->tx_ring_num[t];
1861 mlx4_en_destroy_drop_qp(priv);
1863 mlx4_en_release_rss_steer(priv);
1865 mlx4_en_put_qp(priv);
1867 while (rx_index--) {
1868 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
1869 mlx4_en_free_affinity_hint(priv, rx_index);
1871 for (i = 0; i < priv->rx_ring_num; i++)
1872 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
1874 return err; /* need to close devices */
1878 void mlx4_en_stop_port(struct net_device *dev, int detach)
1880 struct mlx4_en_priv *priv = netdev_priv(dev);
1881 struct mlx4_en_dev *mdev = priv->mdev;
1882 struct mlx4_en_mc_list *mclist, *tmp;
1883 struct ethtool_flow_id *flow, *tmp_flow;
1885 u8 mc_list[16] = {0};
1887 if (!priv->port_up) {
1888 en_dbg(DRV, priv, "stop port called while port already down\n");
1893 mlx4_CLOSE_PORT(mdev->dev, priv->port);
1895 /* Synchronize with tx routine */
1896 netif_tx_lock_bh(dev);
1898 netif_device_detach(dev);
1899 netif_tx_stop_all_queues(dev);
1900 netif_tx_unlock_bh(dev);
1902 netif_tx_disable(dev);
1904 spin_lock_bh(&priv->stats_lock);
1905 mlx4_en_fold_software_stats(dev);
1906 /* Set port as not active */
1907 priv->port_up = false;
1908 spin_unlock_bh(&priv->stats_lock);
1910 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
1912 /* Promsicuous mode */
1913 if (mdev->dev->caps.steering_mode ==
1914 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1915 priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
1916 MLX4_EN_FLAG_MC_PROMISC);
1917 mlx4_flow_steer_promisc_remove(mdev->dev,
1919 MLX4_FS_ALL_DEFAULT);
1920 mlx4_flow_steer_promisc_remove(mdev->dev,
1922 MLX4_FS_MC_DEFAULT);
1923 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
1924 priv->flags &= ~MLX4_EN_FLAG_PROMISC;
1926 /* Disable promiscouos mode */
1927 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
1930 /* Disable Multicast promisc */
1931 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
1932 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
1934 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
1938 /* Detach All multicasts */
1939 eth_broadcast_addr(&mc_list[10]);
1940 mc_list[5] = priv->port; /* needed for B0 steering support */
1941 mlx4_multicast_detach(mdev->dev, priv->rss_map.indir_qp, mc_list,
1942 MLX4_PROT_ETH, priv->broadcast_id);
1943 list_for_each_entry(mclist, &priv->curr_list, list) {
1944 memcpy(&mc_list[10], mclist->addr, ETH_ALEN);
1945 mc_list[5] = priv->port;
1946 mlx4_multicast_detach(mdev->dev, priv->rss_map.indir_qp,
1947 mc_list, MLX4_PROT_ETH, mclist->reg_id);
1948 if (mclist->tunnel_reg_id)
1949 mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id);
1951 mlx4_en_clear_list(dev);
1952 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) {
1953 list_del(&mclist->list);
1957 /* Flush multicast filter */
1958 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG);
1960 /* Remove flow steering rules for the port*/
1961 if (mdev->dev->caps.steering_mode ==
1962 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1964 list_for_each_entry_safe(flow, tmp_flow,
1965 &priv->ethtool_list, list) {
1966 mlx4_flow_detach(mdev->dev, flow->id);
1967 list_del(&flow->list);
1971 mlx4_en_destroy_drop_qp(priv);
1974 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
1975 for (i = 0; i < priv->tx_ring_num[t]; i++) {
1976 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]);
1977 mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]);
1982 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
1983 for (i = 0; i < priv->tx_ring_num[t]; i++)
1984 mlx4_en_free_tx_buf(dev, priv->tx_ring[t][i]);
1986 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
1987 mlx4_en_delete_rss_steer_rules(priv);
1990 mlx4_en_release_rss_steer(priv);
1992 /* Unregister Mac address for the port */
1993 mlx4_en_put_qp(priv);
1994 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
1995 mdev->mac_removed[priv->port] = 1;
1998 for (i = 0; i < priv->rx_ring_num; i++) {
1999 struct mlx4_en_cq *cq = priv->rx_cq[i];
2001 napi_synchronize(&cq->napi);
2002 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
2003 mlx4_en_deactivate_cq(priv, cq);
2005 mlx4_en_free_affinity_hint(priv, i);
2009 static void mlx4_en_restart(struct work_struct *work)
2011 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2013 struct mlx4_en_dev *mdev = priv->mdev;
2014 struct net_device *dev = priv->dev;
2016 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
2019 mutex_lock(&mdev->state_lock);
2020 if (priv->port_up) {
2021 mlx4_en_stop_port(dev, 1);
2022 if (mlx4_en_start_port(dev))
2023 en_err(priv, "Failed restarting port %d\n", priv->port);
2025 mutex_unlock(&mdev->state_lock);
2029 static void mlx4_en_clear_stats(struct net_device *dev)
2031 struct mlx4_en_priv *priv = netdev_priv(dev);
2032 struct mlx4_en_dev *mdev = priv->mdev;
2033 struct mlx4_en_tx_ring **tx_ring;
2036 if (!mlx4_is_slave(mdev->dev))
2037 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
2038 en_dbg(HW, priv, "Failed dumping statistics\n");
2040 memset(&priv->pstats, 0, sizeof(priv->pstats));
2041 memset(&priv->pkstats, 0, sizeof(priv->pkstats));
2042 memset(&priv->port_stats, 0, sizeof(priv->port_stats));
2043 memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats));
2044 memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats));
2045 memset(&priv->rx_priority_flowstats, 0,
2046 sizeof(priv->rx_priority_flowstats));
2047 memset(&priv->tx_priority_flowstats, 0,
2048 sizeof(priv->tx_priority_flowstats));
2049 memset(&priv->pf_stats, 0, sizeof(priv->pf_stats));
2051 tx_ring = priv->tx_ring[TX];
2052 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
2053 tx_ring[i]->bytes = 0;
2054 tx_ring[i]->packets = 0;
2055 tx_ring[i]->tx_csum = 0;
2056 tx_ring[i]->tx_dropped = 0;
2057 tx_ring[i]->queue_stopped = 0;
2058 tx_ring[i]->wake_queue = 0;
2059 tx_ring[i]->tso_packets = 0;
2060 tx_ring[i]->xmit_more = 0;
2062 for (i = 0; i < priv->rx_ring_num; i++) {
2063 priv->rx_ring[i]->bytes = 0;
2064 priv->rx_ring[i]->packets = 0;
2065 priv->rx_ring[i]->csum_ok = 0;
2066 priv->rx_ring[i]->csum_none = 0;
2067 priv->rx_ring[i]->csum_complete = 0;
2071 static int mlx4_en_open(struct net_device *dev)
2073 struct mlx4_en_priv *priv = netdev_priv(dev);
2074 struct mlx4_en_dev *mdev = priv->mdev;
2077 mutex_lock(&mdev->state_lock);
2079 if (!mdev->device_up) {
2080 en_err(priv, "Cannot open - device down/disabled\n");
2085 /* Reset HW statistics and SW counters */
2086 mlx4_en_clear_stats(dev);
2088 err = mlx4_en_start_port(dev);
2090 en_err(priv, "Failed starting port:%d\n", priv->port);
2093 mutex_unlock(&mdev->state_lock);
2098 static int mlx4_en_close(struct net_device *dev)
2100 struct mlx4_en_priv *priv = netdev_priv(dev);
2101 struct mlx4_en_dev *mdev = priv->mdev;
2103 en_dbg(IFDOWN, priv, "Close port called\n");
2105 mutex_lock(&mdev->state_lock);
2107 mlx4_en_stop_port(dev, 0);
2108 netif_carrier_off(dev);
2110 mutex_unlock(&mdev->state_lock);
2114 static void mlx4_en_free_resources(struct mlx4_en_priv *priv)
2118 #ifdef CONFIG_RFS_ACCEL
2119 priv->dev->rx_cpu_rmap = NULL;
2122 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2123 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2124 if (priv->tx_ring[t] && priv->tx_ring[t][i])
2125 mlx4_en_destroy_tx_ring(priv,
2126 &priv->tx_ring[t][i]);
2127 if (priv->tx_cq[t] && priv->tx_cq[t][i])
2128 mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]);
2130 kfree(priv->tx_ring[t]);
2131 kfree(priv->tx_cq[t]);
2134 for (i = 0; i < priv->rx_ring_num; i++) {
2135 if (priv->rx_ring[i])
2136 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2137 priv->prof->rx_ring_size, priv->stride);
2139 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2144 static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
2146 struct mlx4_en_port_profile *prof = priv->prof;
2150 /* Create tx Rings */
2151 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2152 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2153 node = cpu_to_node(i % num_online_cpus());
2154 if (mlx4_en_create_cq(priv, &priv->tx_cq[t][i],
2155 prof->tx_ring_size, i, t, node))
2158 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[t][i],
2160 TXBB_SIZE, node, i))
2165 /* Create rx Rings */
2166 for (i = 0; i < priv->rx_ring_num; i++) {
2167 node = cpu_to_node(i % num_online_cpus());
2168 if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
2169 prof->rx_ring_size, i, RX, node))
2172 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
2173 prof->rx_ring_size, priv->stride,
2178 #ifdef CONFIG_RFS_ACCEL
2179 priv->dev->rx_cpu_rmap = mlx4_get_cpu_rmap(priv->mdev->dev, priv->port);
2185 en_err(priv, "Failed to allocate NIC resources\n");
2186 for (i = 0; i < priv->rx_ring_num; i++) {
2187 if (priv->rx_ring[i])
2188 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
2192 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
2194 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2195 for (i = 0; i < priv->tx_ring_num[t]; i++) {
2196 if (priv->tx_ring[t][i])
2197 mlx4_en_destroy_tx_ring(priv,
2198 &priv->tx_ring[t][i]);
2199 if (priv->tx_cq[t][i])
2200 mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]);
2207 static int mlx4_en_copy_priv(struct mlx4_en_priv *dst,
2208 struct mlx4_en_priv *src,
2209 struct mlx4_en_port_profile *prof)
2213 memcpy(&dst->hwtstamp_config, &prof->hwtstamp_config,
2214 sizeof(dst->hwtstamp_config));
2215 dst->num_tx_rings_p_up = prof->num_tx_rings_p_up;
2216 dst->rx_ring_num = prof->rx_ring_num;
2217 dst->flags = prof->flags;
2218 dst->mdev = src->mdev;
2219 dst->port = src->port;
2220 dst->dev = src->dev;
2222 dst->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
2223 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
2225 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2226 dst->tx_ring_num[t] = prof->tx_ring_num[t];
2227 if (!dst->tx_ring_num[t])
2230 dst->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
2231 MAX_TX_RINGS, GFP_KERNEL);
2232 if (!dst->tx_ring[t])
2235 dst->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
2236 MAX_TX_RINGS, GFP_KERNEL);
2237 if (!dst->tx_cq[t]) {
2238 kfree(dst->tx_ring[t]);
2247 kfree(dst->tx_ring[t]);
2248 kfree(dst->tx_cq[t]);
2253 static void mlx4_en_update_priv(struct mlx4_en_priv *dst,
2254 struct mlx4_en_priv *src)
2257 memcpy(dst->rx_ring, src->rx_ring,
2258 sizeof(struct mlx4_en_rx_ring *) * src->rx_ring_num);
2259 memcpy(dst->rx_cq, src->rx_cq,
2260 sizeof(struct mlx4_en_cq *) * src->rx_ring_num);
2261 memcpy(&dst->hwtstamp_config, &src->hwtstamp_config,
2262 sizeof(dst->hwtstamp_config));
2263 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2264 dst->tx_ring_num[t] = src->tx_ring_num[t];
2265 dst->tx_ring[t] = src->tx_ring[t];
2266 dst->tx_cq[t] = src->tx_cq[t];
2268 dst->num_tx_rings_p_up = src->num_tx_rings_p_up;
2269 dst->rx_ring_num = src->rx_ring_num;
2270 memcpy(dst->prof, src->prof, sizeof(struct mlx4_en_port_profile));
2273 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv,
2274 struct mlx4_en_priv *tmp,
2275 struct mlx4_en_port_profile *prof,
2276 bool carry_xdp_prog)
2278 struct bpf_prog *xdp_prog;
2281 mlx4_en_copy_priv(tmp, priv, prof);
2283 if (mlx4_en_alloc_resources(tmp)) {
2285 "%s: Resource allocation failed, using previous configuration\n",
2287 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
2288 kfree(tmp->tx_ring[t]);
2289 kfree(tmp->tx_cq[t]);
2294 /* All rx_rings has the same xdp_prog. Pick the first one. */
2295 xdp_prog = rcu_dereference_protected(
2296 priv->rx_ring[0]->xdp_prog,
2297 lockdep_is_held(&priv->mdev->state_lock));
2299 if (xdp_prog && carry_xdp_prog) {
2300 xdp_prog = bpf_prog_add(xdp_prog, tmp->rx_ring_num);
2301 if (IS_ERR(xdp_prog)) {
2302 mlx4_en_free_resources(tmp);
2303 return PTR_ERR(xdp_prog);
2305 for (i = 0; i < tmp->rx_ring_num; i++)
2306 rcu_assign_pointer(tmp->rx_ring[i]->xdp_prog,
2313 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv,
2314 struct mlx4_en_priv *tmp)
2316 mlx4_en_free_resources(priv);
2317 mlx4_en_update_priv(priv, tmp);
2320 void mlx4_en_destroy_netdev(struct net_device *dev)
2322 struct mlx4_en_priv *priv = netdev_priv(dev);
2323 struct mlx4_en_dev *mdev = priv->mdev;
2325 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
2327 /* Unregister device - this will close the port if it was up */
2328 if (priv->registered) {
2329 devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev,
2331 unregister_netdev(dev);
2334 if (priv->allocated)
2335 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
2337 cancel_delayed_work(&priv->stats_task);
2338 cancel_delayed_work(&priv->service_task);
2339 /* flush any pending task for this netdev */
2340 flush_workqueue(mdev->workqueue);
2342 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
2343 mlx4_en_remove_timestamp(mdev);
2345 /* Detach the netdev so tasks would not attempt to access it */
2346 mutex_lock(&mdev->state_lock);
2347 mdev->pndev[priv->port] = NULL;
2348 mdev->upper[priv->port] = NULL;
2350 #ifdef CONFIG_RFS_ACCEL
2351 mlx4_en_cleanup_filters(priv);
2354 mlx4_en_free_resources(priv);
2355 mutex_unlock(&mdev->state_lock);
2360 static bool mlx4_en_check_xdp_mtu(struct net_device *dev, int mtu)
2362 struct mlx4_en_priv *priv = netdev_priv(dev);
2364 if (mtu > MLX4_EN_MAX_XDP_MTU) {
2365 en_err(priv, "mtu:%d > max:%d when XDP prog is attached\n",
2366 mtu, MLX4_EN_MAX_XDP_MTU);
2373 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu)
2375 struct mlx4_en_priv *priv = netdev_priv(dev);
2376 struct mlx4_en_dev *mdev = priv->mdev;
2379 en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n",
2382 if (priv->tx_ring_num[TX_XDP] &&
2383 !mlx4_en_check_xdp_mtu(dev, new_mtu))
2388 if (netif_running(dev)) {
2389 mutex_lock(&mdev->state_lock);
2390 if (!mdev->device_up) {
2391 /* NIC is probably restarting - let watchdog task reset
2393 en_dbg(DRV, priv, "Change MTU called with card down!?\n");
2395 mlx4_en_stop_port(dev, 1);
2396 err = mlx4_en_start_port(dev);
2398 en_err(priv, "Failed restarting port:%d\n",
2400 queue_work(mdev->workqueue, &priv->watchdog_task);
2403 mutex_unlock(&mdev->state_lock);
2408 static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
2410 struct mlx4_en_priv *priv = netdev_priv(dev);
2411 struct mlx4_en_dev *mdev = priv->mdev;
2412 struct hwtstamp_config config;
2414 if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
2417 /* reserved for future extensions */
2421 /* device doesn't support time stamping */
2422 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
2425 /* TX HW timestamp */
2426 switch (config.tx_type) {
2427 case HWTSTAMP_TX_OFF:
2428 case HWTSTAMP_TX_ON:
2434 /* RX HW timestamp */
2435 switch (config.rx_filter) {
2436 case HWTSTAMP_FILTER_NONE:
2438 case HWTSTAMP_FILTER_ALL:
2439 case HWTSTAMP_FILTER_SOME:
2440 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
2441 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
2442 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
2443 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
2444 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
2445 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
2446 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
2447 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
2448 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
2449 case HWTSTAMP_FILTER_PTP_V2_EVENT:
2450 case HWTSTAMP_FILTER_PTP_V2_SYNC:
2451 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
2452 case HWTSTAMP_FILTER_NTP_ALL:
2453 config.rx_filter = HWTSTAMP_FILTER_ALL;
2459 if (mlx4_en_reset_config(dev, config, dev->features)) {
2460 config.tx_type = HWTSTAMP_TX_OFF;
2461 config.rx_filter = HWTSTAMP_FILTER_NONE;
2464 return copy_to_user(ifr->ifr_data, &config,
2465 sizeof(config)) ? -EFAULT : 0;
2468 static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
2470 struct mlx4_en_priv *priv = netdev_priv(dev);
2472 return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config,
2473 sizeof(priv->hwtstamp_config)) ? -EFAULT : 0;
2476 static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2480 return mlx4_en_hwtstamp_set(dev, ifr);
2482 return mlx4_en_hwtstamp_get(dev, ifr);
2488 static netdev_features_t mlx4_en_fix_features(struct net_device *netdev,
2489 netdev_features_t features)
2491 struct mlx4_en_priv *en_priv = netdev_priv(netdev);
2492 struct mlx4_en_dev *mdev = en_priv->mdev;
2494 /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
2495 * enable/disable make sure S-TAG flag is always in same state as
2498 if (features & NETIF_F_HW_VLAN_CTAG_RX &&
2499 !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
2500 features |= NETIF_F_HW_VLAN_STAG_RX;
2502 features &= ~NETIF_F_HW_VLAN_STAG_RX;
2507 static int mlx4_en_set_features(struct net_device *netdev,
2508 netdev_features_t features)
2510 struct mlx4_en_priv *priv = netdev_priv(netdev);
2514 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) {
2515 en_info(priv, "Turn %s RX-FCS\n",
2516 (features & NETIF_F_RXFCS) ? "ON" : "OFF");
2520 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) {
2521 u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0;
2523 en_info(priv, "Turn %s RX-ALL\n",
2524 ignore_fcs_value ? "ON" : "OFF");
2525 ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev,
2526 priv->port, ignore_fcs_value);
2531 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
2532 en_info(priv, "Turn %s RX vlan strip offload\n",
2533 (features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF");
2537 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX))
2538 en_info(priv, "Turn %s TX vlan strip offload\n",
2539 (features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
2541 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX))
2542 en_info(priv, "Turn %s TX S-VLAN strip offload\n",
2543 (features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF");
2545 if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) {
2546 en_info(priv, "Turn %s loopback\n",
2547 (features & NETIF_F_LOOPBACK) ? "ON" : "OFF");
2548 mlx4_en_update_loopback_state(netdev, features);
2552 ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config,
2561 static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
2563 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2564 struct mlx4_en_dev *mdev = en_priv->mdev;
2566 return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac);
2569 static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
2572 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2573 struct mlx4_en_dev *mdev = en_priv->mdev;
2575 return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos,
2579 static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
2582 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2583 struct mlx4_en_dev *mdev = en_priv->mdev;
2585 return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate,
2589 static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
2591 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2592 struct mlx4_en_dev *mdev = en_priv->mdev;
2594 return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting);
2597 static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf)
2599 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2600 struct mlx4_en_dev *mdev = en_priv->mdev;
2602 return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
2605 static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
2607 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2608 struct mlx4_en_dev *mdev = en_priv->mdev;
2610 return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
2613 static int mlx4_en_get_vf_stats(struct net_device *dev, int vf,
2614 struct ifla_vf_stats *vf_stats)
2616 struct mlx4_en_priv *en_priv = netdev_priv(dev);
2617 struct mlx4_en_dev *mdev = en_priv->mdev;
2619 return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats);
2622 #define PORT_ID_BYTE_LEN 8
2623 static int mlx4_en_get_phys_port_id(struct net_device *dev,
2624 struct netdev_phys_item_id *ppid)
2626 struct mlx4_en_priv *priv = netdev_priv(dev);
2627 struct mlx4_dev *mdev = priv->mdev->dev;
2629 u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
2634 ppid->id_len = sizeof(phys_port_id);
2635 for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
2636 ppid->id[i] = phys_port_id & 0xff;
2642 static void mlx4_en_add_vxlan_offloads(struct work_struct *work)
2645 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2648 ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port);
2652 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2653 VXLAN_STEER_BY_OUTER_MAC, 1);
2656 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2661 priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2663 NETIF_F_TSO | NETIF_F_TSO6 |
2664 NETIF_F_GSO_UDP_TUNNEL |
2665 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2666 NETIF_F_GSO_PARTIAL;
2669 static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
2672 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
2674 /* unset offloads */
2675 priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
2677 NETIF_F_TSO | NETIF_F_TSO6 |
2678 NETIF_F_GSO_UDP_TUNNEL |
2679 NETIF_F_GSO_UDP_TUNNEL_CSUM |
2680 NETIF_F_GSO_PARTIAL);
2682 ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
2683 VXLAN_STEER_BY_OUTER_MAC, 0);
2685 en_err(priv, "failed setting L2 tunnel configuration ret %d\n", ret);
2687 priv->vxlan_port = 0;
2690 static void mlx4_en_add_vxlan_port(struct net_device *dev,
2691 struct udp_tunnel_info *ti)
2693 struct mlx4_en_priv *priv = netdev_priv(dev);
2694 __be16 port = ti->port;
2695 __be16 current_port;
2697 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2700 if (ti->sa_family != AF_INET)
2703 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2706 current_port = priv->vxlan_port;
2707 if (current_port && current_port != port) {
2708 en_warn(priv, "vxlan port %d configured, can't add port %d\n",
2709 ntohs(current_port), ntohs(port));
2713 priv->vxlan_port = port;
2714 queue_work(priv->mdev->workqueue, &priv->vxlan_add_task);
2717 static void mlx4_en_del_vxlan_port(struct net_device *dev,
2718 struct udp_tunnel_info *ti)
2720 struct mlx4_en_priv *priv = netdev_priv(dev);
2721 __be16 port = ti->port;
2722 __be16 current_port;
2724 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
2727 if (ti->sa_family != AF_INET)
2730 if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
2733 current_port = priv->vxlan_port;
2734 if (current_port != port) {
2735 en_dbg(DRV, priv, "vxlan port %d isn't configured, ignoring\n", ntohs(port));
2739 queue_work(priv->mdev->workqueue, &priv->vxlan_del_task);
2742 static netdev_features_t mlx4_en_features_check(struct sk_buff *skb,
2743 struct net_device *dev,
2744 netdev_features_t features)
2746 features = vlan_features_check(skb, features);
2747 features = vxlan_features_check(skb, features);
2749 /* The ConnectX-3 doesn't support outer IPv6 checksums but it does
2750 * support inner IPv6 checksums and segmentation so we need to
2751 * strip that feature if this is an IPv6 encapsulated frame.
2753 if (skb->encapsulation &&
2754 (skb->ip_summed == CHECKSUM_PARTIAL)) {
2755 struct mlx4_en_priv *priv = netdev_priv(dev);
2757 if (!priv->vxlan_port ||
2758 (ip_hdr(skb)->version != 4) ||
2759 (udp_hdr(skb)->dest != priv->vxlan_port))
2760 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2766 static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate)
2768 struct mlx4_en_priv *priv = netdev_priv(dev);
2769 struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][queue_index];
2770 struct mlx4_update_qp_params params;
2773 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT))
2776 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2777 if (maxrate >> 12) {
2778 params.rate_unit = MLX4_QP_RATE_LIMIT_GBS;
2779 params.rate_val = maxrate / 1000;
2780 } else if (maxrate) {
2781 params.rate_unit = MLX4_QP_RATE_LIMIT_MBS;
2782 params.rate_val = maxrate;
2783 } else { /* zero serves to revoke the QP rate-limitation */
2784 params.rate_unit = 0;
2785 params.rate_val = 0;
2788 err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT,
2793 static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog)
2795 struct mlx4_en_priv *priv = netdev_priv(dev);
2796 struct mlx4_en_dev *mdev = priv->mdev;
2797 struct mlx4_en_port_profile new_prof;
2798 struct bpf_prog *old_prog;
2799 struct mlx4_en_priv *tmp;
2806 xdp_ring_num = prog ? priv->rx_ring_num : 0;
2808 /* No need to reconfigure buffers when simply swapping the
2809 * program for a new one.
2811 if (priv->tx_ring_num[TX_XDP] == xdp_ring_num) {
2813 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2815 return PTR_ERR(prog);
2817 mutex_lock(&mdev->state_lock);
2818 for (i = 0; i < priv->rx_ring_num; i++) {
2819 old_prog = rcu_dereference_protected(
2820 priv->rx_ring[i]->xdp_prog,
2821 lockdep_is_held(&mdev->state_lock));
2822 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2824 bpf_prog_put(old_prog);
2826 mutex_unlock(&mdev->state_lock);
2830 if (!mlx4_en_check_xdp_mtu(dev, dev->mtu))
2833 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
2838 prog = bpf_prog_add(prog, priv->rx_ring_num - 1);
2840 err = PTR_ERR(prog);
2845 mutex_lock(&mdev->state_lock);
2846 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
2847 new_prof.tx_ring_num[TX_XDP] = xdp_ring_num;
2849 if (priv->tx_ring_num[TX] + xdp_ring_num > MAX_TX_RINGS) {
2851 new_prof.tx_ring_num[TX] =
2852 MAX_TX_RINGS - ALIGN(xdp_ring_num, priv->prof->num_up);
2853 en_warn(priv, "Reducing the number of TX rings, to not exceed the max total rings number.\n");
2856 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, false);
2859 bpf_prog_sub(prog, priv->rx_ring_num - 1);
2863 if (priv->port_up) {
2865 mlx4_en_stop_port(dev, 1);
2868 mlx4_en_safe_replace_resources(priv, tmp);
2870 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
2872 for (i = 0; i < priv->rx_ring_num; i++) {
2873 old_prog = rcu_dereference_protected(
2874 priv->rx_ring[i]->xdp_prog,
2875 lockdep_is_held(&mdev->state_lock));
2876 rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog);
2878 bpf_prog_put(old_prog);
2882 err = mlx4_en_start_port(dev);
2884 en_err(priv, "Failed starting port %d for XDP change\n",
2886 queue_work(mdev->workqueue, &priv->watchdog_task);
2891 mutex_unlock(&mdev->state_lock);
2897 static u32 mlx4_xdp_query(struct net_device *dev)
2899 struct mlx4_en_priv *priv = netdev_priv(dev);
2900 struct mlx4_en_dev *mdev = priv->mdev;
2901 const struct bpf_prog *xdp_prog;
2904 if (!priv->tx_ring_num[TX_XDP])
2907 mutex_lock(&mdev->state_lock);
2908 xdp_prog = rcu_dereference_protected(
2909 priv->rx_ring[0]->xdp_prog,
2910 lockdep_is_held(&mdev->state_lock));
2912 prog_id = xdp_prog->aux->id;
2913 mutex_unlock(&mdev->state_lock);
2918 static int mlx4_xdp(struct net_device *dev, struct netdev_xdp *xdp)
2920 switch (xdp->command) {
2921 case XDP_SETUP_PROG:
2922 return mlx4_xdp_set(dev, xdp->prog);
2923 case XDP_QUERY_PROG:
2924 xdp->prog_id = mlx4_xdp_query(dev);
2925 xdp->prog_attached = !!xdp->prog_id;
2932 static const struct net_device_ops mlx4_netdev_ops = {
2933 .ndo_open = mlx4_en_open,
2934 .ndo_stop = mlx4_en_close,
2935 .ndo_start_xmit = mlx4_en_xmit,
2936 .ndo_select_queue = mlx4_en_select_queue,
2937 .ndo_get_stats64 = mlx4_en_get_stats64,
2938 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2939 .ndo_set_mac_address = mlx4_en_set_mac,
2940 .ndo_validate_addr = eth_validate_addr,
2941 .ndo_change_mtu = mlx4_en_change_mtu,
2942 .ndo_do_ioctl = mlx4_en_ioctl,
2943 .ndo_tx_timeout = mlx4_en_tx_timeout,
2944 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2945 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2946 #ifdef CONFIG_NET_POLL_CONTROLLER
2947 .ndo_poll_controller = mlx4_en_netpoll,
2949 .ndo_set_features = mlx4_en_set_features,
2950 .ndo_fix_features = mlx4_en_fix_features,
2951 .ndo_setup_tc = __mlx4_en_setup_tc,
2952 #ifdef CONFIG_RFS_ACCEL
2953 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2955 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2956 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2957 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2958 .ndo_features_check = mlx4_en_features_check,
2959 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2960 .ndo_xdp = mlx4_xdp,
2963 static const struct net_device_ops mlx4_netdev_ops_master = {
2964 .ndo_open = mlx4_en_open,
2965 .ndo_stop = mlx4_en_close,
2966 .ndo_start_xmit = mlx4_en_xmit,
2967 .ndo_select_queue = mlx4_en_select_queue,
2968 .ndo_get_stats64 = mlx4_en_get_stats64,
2969 .ndo_set_rx_mode = mlx4_en_set_rx_mode,
2970 .ndo_set_mac_address = mlx4_en_set_mac,
2971 .ndo_validate_addr = eth_validate_addr,
2972 .ndo_change_mtu = mlx4_en_change_mtu,
2973 .ndo_tx_timeout = mlx4_en_tx_timeout,
2974 .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid,
2975 .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid,
2976 .ndo_set_vf_mac = mlx4_en_set_vf_mac,
2977 .ndo_set_vf_vlan = mlx4_en_set_vf_vlan,
2978 .ndo_set_vf_rate = mlx4_en_set_vf_rate,
2979 .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk,
2980 .ndo_set_vf_link_state = mlx4_en_set_vf_link_state,
2981 .ndo_get_vf_stats = mlx4_en_get_vf_stats,
2982 .ndo_get_vf_config = mlx4_en_get_vf_config,
2983 #ifdef CONFIG_NET_POLL_CONTROLLER
2984 .ndo_poll_controller = mlx4_en_netpoll,
2986 .ndo_set_features = mlx4_en_set_features,
2987 .ndo_fix_features = mlx4_en_fix_features,
2988 .ndo_setup_tc = __mlx4_en_setup_tc,
2989 #ifdef CONFIG_RFS_ACCEL
2990 .ndo_rx_flow_steer = mlx4_en_filter_rfs,
2992 .ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
2993 .ndo_udp_tunnel_add = mlx4_en_add_vxlan_port,
2994 .ndo_udp_tunnel_del = mlx4_en_del_vxlan_port,
2995 .ndo_features_check = mlx4_en_features_check,
2996 .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate,
2997 .ndo_xdp = mlx4_xdp,
3000 struct mlx4_en_bond {
3001 struct work_struct work;
3002 struct mlx4_en_priv *priv;
3004 struct mlx4_port_map port_map;
3007 static void mlx4_en_bond_work(struct work_struct *work)
3009 struct mlx4_en_bond *bond = container_of(work,
3010 struct mlx4_en_bond,
3013 struct mlx4_dev *dev = bond->priv->mdev->dev;
3015 if (bond->is_bonded) {
3016 if (!mlx4_is_bonded(dev)) {
3017 err = mlx4_bond(dev);
3019 en_err(bond->priv, "Fail to bond device\n");
3022 err = mlx4_port_map_set(dev, &bond->port_map);
3024 en_err(bond->priv, "Fail to set port map [%d][%d]: %d\n",
3025 bond->port_map.port1,
3026 bond->port_map.port2,
3029 } else if (mlx4_is_bonded(dev)) {
3030 err = mlx4_unbond(dev);
3032 en_err(bond->priv, "Fail to unbond device\n");
3034 dev_put(bond->priv->dev);
3038 static int mlx4_en_queue_bond_work(struct mlx4_en_priv *priv, int is_bonded,
3039 u8 v2p_p1, u8 v2p_p2)
3041 struct mlx4_en_bond *bond = NULL;
3043 bond = kzalloc(sizeof(*bond), GFP_ATOMIC);
3047 INIT_WORK(&bond->work, mlx4_en_bond_work);
3049 bond->is_bonded = is_bonded;
3050 bond->port_map.port1 = v2p_p1;
3051 bond->port_map.port2 = v2p_p2;
3052 dev_hold(priv->dev);
3053 queue_work(priv->mdev->workqueue, &bond->work);
3057 int mlx4_en_netdev_event(struct notifier_block *this,
3058 unsigned long event, void *ptr)
3060 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
3062 struct mlx4_en_dev *mdev;
3063 struct mlx4_dev *dev;
3064 int i, num_eth_ports = 0;
3065 bool do_bond = true;
3066 struct mlx4_en_priv *priv;
3070 if (!net_eq(dev_net(ndev), &init_net))
3073 mdev = container_of(this, struct mlx4_en_dev, nb);
3076 /* Go into this mode only when two network devices set on two ports
3077 * of the same mlx4 device are slaves of the same bonding master
3079 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
3081 if (!port && (mdev->pndev[i] == ndev))
3083 mdev->upper[i] = mdev->pndev[i] ?
3084 netdev_master_upper_dev_get(mdev->pndev[i]) : NULL;
3085 /* condition not met: network device is a slave */
3086 if (!mdev->upper[i])
3088 if (num_eth_ports < 2)
3090 /* condition not met: same master */
3091 if (mdev->upper[i] != mdev->upper[i-1])
3094 /* condition not met: 2 salves */
3095 do_bond = (num_eth_ports == 2) ? do_bond : false;
3097 /* handle only events that come with enough info */
3098 if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port)
3101 priv = netdev_priv(ndev);
3103 struct netdev_notifier_bonding_info *notifier_info = ptr;
3104 struct netdev_bonding_info *bonding_info =
3105 ¬ifier_info->bonding_info;
3107 /* required mode 1, 2 or 4 */
3108 if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) &&
3109 (bonding_info->master.bond_mode != BOND_MODE_XOR) &&
3110 (bonding_info->master.bond_mode != BOND_MODE_8023AD))
3113 /* require exactly 2 slaves */
3114 if (bonding_info->master.num_slaves != 2)
3119 if (bonding_info->master.bond_mode ==
3120 BOND_MODE_ACTIVEBACKUP) {
3121 /* in active-backup mode virtual ports are
3122 * mapped to the physical port of the active
3124 if (bonding_info->slave.state ==
3125 BOND_STATE_BACKUP) {
3133 } else { /* BOND_STATE_ACTIVE */
3142 } else { /* Active-Active */
3143 /* in active-active mode a virtual port is
3144 * mapped to the native physical port if and only
3145 * if the physical port is up */
3146 __s8 link = bonding_info->slave.link;
3152 if ((link == BOND_LINK_UP) ||
3153 (link == BOND_LINK_FAIL)) {
3158 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
3168 mlx4_en_queue_bond_work(priv, do_bond,
3169 v2p_port1, v2p_port2);
3174 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
3175 struct mlx4_en_stats_bitmap *stats_bitmap,
3176 u8 rx_ppp, u8 rx_pause,
3177 u8 tx_ppp, u8 tx_pause)
3179 int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS;
3181 if (!mlx4_is_slave(dev) &&
3182 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) {
3183 mutex_lock(&stats_bitmap->mutex);
3184 bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS);
3187 bitmap_set(stats_bitmap->bitmap, last_i,
3188 NUM_FLOW_PRIORITY_STATS_RX);
3189 last_i += NUM_FLOW_PRIORITY_STATS_RX;
3191 if (rx_pause && !(rx_ppp))
3192 bitmap_set(stats_bitmap->bitmap, last_i,
3194 last_i += NUM_FLOW_STATS_RX;
3197 bitmap_set(stats_bitmap->bitmap, last_i,
3198 NUM_FLOW_PRIORITY_STATS_TX);
3199 last_i += NUM_FLOW_PRIORITY_STATS_TX;
3201 if (tx_pause && !(tx_ppp))
3202 bitmap_set(stats_bitmap->bitmap, last_i,
3204 last_i += NUM_FLOW_STATS_TX;
3206 mutex_unlock(&stats_bitmap->mutex);
3210 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
3211 struct mlx4_en_stats_bitmap *stats_bitmap,
3212 u8 rx_ppp, u8 rx_pause,
3213 u8 tx_ppp, u8 tx_pause)
3217 mutex_init(&stats_bitmap->mutex);
3218 bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS);
3220 if (mlx4_is_slave(dev)) {
3221 bitmap_set(stats_bitmap->bitmap, last_i +
3222 MLX4_FIND_NETDEV_STAT(rx_packets), 1);
3223 bitmap_set(stats_bitmap->bitmap, last_i +
3224 MLX4_FIND_NETDEV_STAT(tx_packets), 1);
3225 bitmap_set(stats_bitmap->bitmap, last_i +
3226 MLX4_FIND_NETDEV_STAT(rx_bytes), 1);
3227 bitmap_set(stats_bitmap->bitmap, last_i +
3228 MLX4_FIND_NETDEV_STAT(tx_bytes), 1);
3229 bitmap_set(stats_bitmap->bitmap, last_i +
3230 MLX4_FIND_NETDEV_STAT(rx_dropped), 1);
3231 bitmap_set(stats_bitmap->bitmap, last_i +
3232 MLX4_FIND_NETDEV_STAT(tx_dropped), 1);
3234 bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS);
3236 last_i += NUM_MAIN_STATS;
3238 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS);
3239 last_i += NUM_PORT_STATS;
3241 if (mlx4_is_master(dev))
3242 bitmap_set(stats_bitmap->bitmap, last_i,
3244 last_i += NUM_PF_STATS;
3246 mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap,
3249 last_i += NUM_FLOW_STATS;
3251 if (!mlx4_is_slave(dev))
3252 bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS);
3253 last_i += NUM_PKT_STATS;
3255 bitmap_set(stats_bitmap->bitmap, last_i, NUM_XDP_STATS);
3256 last_i += NUM_XDP_STATS;
3259 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
3260 struct mlx4_en_port_profile *prof)
3262 struct net_device *dev;
3263 struct mlx4_en_priv *priv;
3267 dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
3268 MAX_TX_RINGS, MAX_RX_RINGS);
3272 netif_set_real_num_tx_queues(dev, prof->tx_ring_num[TX]);
3273 netif_set_real_num_rx_queues(dev, prof->rx_ring_num);
3275 SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev);
3276 dev->dev_port = port - 1;
3279 * Initialize driver private data
3282 priv = netdev_priv(dev);
3283 memset(priv, 0, sizeof(struct mlx4_en_priv));
3284 priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev);
3285 spin_lock_init(&priv->stats_lock);
3286 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
3287 INIT_WORK(&priv->watchdog_task, mlx4_en_restart);
3288 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
3289 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
3290 INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
3291 INIT_WORK(&priv->vxlan_add_task, mlx4_en_add_vxlan_offloads);
3292 INIT_WORK(&priv->vxlan_del_task, mlx4_en_del_vxlan_offloads);
3293 #ifdef CONFIG_RFS_ACCEL
3294 INIT_LIST_HEAD(&priv->filters);
3295 spin_lock_init(&priv->filters_lock);
3300 priv->ddev = &mdev->pdev->dev;
3303 priv->port_up = false;
3304 priv->flags = prof->flags;
3305 priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME;
3306 priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE |
3307 MLX4_WQE_CTRL_SOLICITED);
3308 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
3309 priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK;
3310 netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key));
3312 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) {
3313 priv->tx_ring_num[t] = prof->tx_ring_num[t];
3314 if (!priv->tx_ring_num[t])
3317 priv->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
3318 MAX_TX_RINGS, GFP_KERNEL);
3319 if (!priv->tx_ring[t]) {
3323 priv->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
3324 MAX_TX_RINGS, GFP_KERNEL);
3325 if (!priv->tx_cq[t]) {
3326 kfree(priv->tx_ring[t]);
3331 priv->rx_ring_num = prof->rx_ring_num;
3332 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0;
3333 priv->cqe_size = mdev->dev->caps.cqe_size;
3334 priv->mac_index = -1;
3335 priv->msg_enable = MLX4_EN_MSG_LEVEL;
3336 #ifdef CONFIG_MLX4_EN_DCB
3337 if (!mlx4_is_slave(priv->mdev->dev)) {
3338 priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST |
3339 DCB_CAP_DCBX_VER_IEEE;
3340 priv->flags |= MLX4_EN_DCB_ENABLED;
3341 priv->cee_config.pfc_state = false;
3343 for (i = 0; i < MLX4_EN_NUM_UP_HIGH; i++)
3344 priv->cee_config.dcb_pfc[i] = pfc_disabled;
3346 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
3347 dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
3349 en_info(priv, "enabling only PFC DCB ops\n");
3350 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops;
3355 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i)
3356 INIT_HLIST_HEAD(&priv->mac_hash[i]);
3358 /* Query for default mac and max mtu */
3359 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
3361 if (mdev->dev->caps.rx_checksum_flags_port[priv->port] &
3362 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP)
3363 priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP;
3365 /* Set default MAC */
3366 dev->addr_len = ETH_ALEN;
3367 mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
3368 if (!is_valid_ether_addr(dev->dev_addr)) {
3369 en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
3370 priv->port, dev->dev_addr);
3373 } else if (mlx4_is_slave(priv->mdev->dev) &&
3374 (priv->mdev->dev->port_random_macs & 1 << priv->port)) {
3375 /* Random MAC was assigned in mlx4_slave_cap
3376 * in mlx4_core module
3378 dev->addr_assign_type |= NET_ADDR_RANDOM;
3379 en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr);
3382 memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac));
3384 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
3385 DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
3386 err = mlx4_en_alloc_resources(priv);
3390 /* Initialize time stamping config */
3391 priv->hwtstamp_config.flags = 0;
3392 priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF;
3393 priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
3395 /* Allocate page for receive rings */
3396 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
3399 en_err(priv, "Failed to allocate page for rx qps\n");
3402 priv->allocated = 1;
3405 * Initialize netdev entry points
3407 if (mlx4_is_master(priv->mdev->dev))
3408 dev->netdev_ops = &mlx4_netdev_ops_master;
3410 dev->netdev_ops = &mlx4_netdev_ops;
3411 dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
3412 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
3413 netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
3415 dev->ethtool_ops = &mlx4_en_ethtool_ops;
3418 * Set driver features
3420 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3421 if (mdev->LSO_support)
3422 dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
3424 dev->vlan_features = dev->hw_features;
3426 dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH;
3427 dev->features = dev->hw_features | NETIF_F_HIGHDMA |
3428 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
3429 NETIF_F_HW_VLAN_CTAG_FILTER;
3430 dev->hw_features |= NETIF_F_LOOPBACK |
3431 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
3433 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) {
3434 dev->features |= NETIF_F_HW_VLAN_STAG_RX |
3435 NETIF_F_HW_VLAN_STAG_FILTER;
3436 dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX;
3439 if (mlx4_is_slave(mdev->dev)) {
3440 bool vlan_offload_disabled;
3443 err = get_phv_bit(mdev->dev, port, &phv);
3445 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3446 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
3448 err = mlx4_get_is_vlan_offload_disabled(mdev->dev, port,
3449 &vlan_offload_disabled);
3450 if (!err && vlan_offload_disabled) {
3451 dev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3452 NETIF_F_HW_VLAN_CTAG_RX |
3453 NETIF_F_HW_VLAN_STAG_TX |
3454 NETIF_F_HW_VLAN_STAG_RX);
3455 dev->features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
3456 NETIF_F_HW_VLAN_CTAG_RX |
3457 NETIF_F_HW_VLAN_STAG_TX |
3458 NETIF_F_HW_VLAN_STAG_RX);
3461 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN &&
3462 !(mdev->dev->caps.flags2 &
3463 MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN))
3464 dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX;
3467 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
3468 dev->hw_features |= NETIF_F_RXFCS;
3470 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)
3471 dev->hw_features |= NETIF_F_RXALL;
3473 if (mdev->dev->caps.steering_mode ==
3474 MLX4_STEERING_MODE_DEVICE_MANAGED &&
3475 mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC)
3476 dev->hw_features |= NETIF_F_NTUPLE;
3478 if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
3479 dev->priv_flags |= IFF_UNICAST_FLT;
3481 /* Setting a default hash function value */
3482 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) {
3483 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3484 } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) {
3485 priv->rss_hash_fn = ETH_RSS_HASH_XOR;
3488 "No RSS hash capabilities exposed, using Toeplitz\n");
3489 priv->rss_hash_fn = ETH_RSS_HASH_TOP;
3492 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3493 dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3494 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3495 NETIF_F_GSO_PARTIAL;
3496 dev->features |= NETIF_F_GSO_UDP_TUNNEL |
3497 NETIF_F_GSO_UDP_TUNNEL_CSUM |
3498 NETIF_F_GSO_PARTIAL;
3499 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
3502 /* MTU range: 46 - hw-specific max */
3503 dev->min_mtu = MLX4_EN_MIN_MTU;
3504 dev->max_mtu = priv->max_mtu;
3506 mdev->pndev[port] = dev;
3507 mdev->upper[port] = NULL;
3509 netif_carrier_off(dev);
3510 mlx4_en_set_default_moderation(priv);
3512 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num[TX]);
3513 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
3515 mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
3517 /* Configure port */
3518 mlx4_en_calc_rx_buf(dev);
3519 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
3520 priv->rx_skb_size + ETH_FCS_LEN,
3521 prof->tx_pause, prof->tx_ppp,
3522 prof->rx_pause, prof->rx_ppp);
3524 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n",
3529 if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
3530 err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1);
3532 en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n",
3539 en_warn(priv, "Initializing port\n");
3540 err = mlx4_INIT_PORT(mdev->dev, priv->port);
3542 en_err(priv, "Failed Initializing port\n");
3545 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
3547 /* Initialize time stamp mechanism */
3548 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
3549 mlx4_en_init_timestamp(mdev);
3551 queue_delayed_work(mdev->workqueue, &priv->service_task,
3552 SERVICE_TASK_DELAY);
3554 mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap,
3555 mdev->profile.prof[priv->port].rx_ppp,
3556 mdev->profile.prof[priv->port].rx_pause,
3557 mdev->profile.prof[priv->port].tx_ppp,
3558 mdev->profile.prof[priv->port].tx_pause);
3560 err = register_netdev(dev);
3562 en_err(priv, "Netdev registration failed for port %d\n", port);
3566 priv->registered = 1;
3567 devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port),
3574 kfree(priv->tx_ring[t]);
3575 kfree(priv->tx_cq[t]);
3578 mlx4_en_destroy_netdev(dev);
3582 int mlx4_en_reset_config(struct net_device *dev,
3583 struct hwtstamp_config ts_config,
3584 netdev_features_t features)
3586 struct mlx4_en_priv *priv = netdev_priv(dev);
3587 struct mlx4_en_dev *mdev = priv->mdev;
3588 struct mlx4_en_port_profile new_prof;
3589 struct mlx4_en_priv *tmp;
3593 if (priv->hwtstamp_config.tx_type == ts_config.tx_type &&
3594 priv->hwtstamp_config.rx_filter == ts_config.rx_filter &&
3595 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3596 !DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS))
3597 return 0; /* Nothing to change */
3599 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) &&
3600 (features & NETIF_F_HW_VLAN_CTAG_RX) &&
3601 (priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) {
3602 en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3606 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
3610 mutex_lock(&mdev->state_lock);
3612 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
3613 memcpy(&new_prof.hwtstamp_config, &ts_config, sizeof(ts_config));
3615 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true);
3619 if (priv->port_up) {
3621 mlx4_en_stop_port(dev, 1);
3624 en_warn(priv, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3625 ts_config.rx_filter,
3626 !!(features & NETIF_F_HW_VLAN_CTAG_RX));
3628 mlx4_en_safe_replace_resources(priv, tmp);
3630 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) {
3631 if (features & NETIF_F_HW_VLAN_CTAG_RX)
3632 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3634 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3635 } else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) {
3636 /* RX time-stamping is OFF, update the RX vlan offload
3637 * to the latest wanted state
3639 if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX)
3640 dev->features |= NETIF_F_HW_VLAN_CTAG_RX;
3642 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3645 if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) {
3646 if (features & NETIF_F_RXFCS)
3647 dev->features |= NETIF_F_RXFCS;
3649 dev->features &= ~NETIF_F_RXFCS;
3652 /* RX vlan offload and RX time-stamping can't co-exist !
3653 * Regardless of the caller's choice,
3654 * Turn Off RX vlan offload in case of time-stamping is ON
3656 if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) {
3657 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
3658 en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n");
3659 dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
3663 err = mlx4_en_start_port(dev);
3665 en_err(priv, "Failed starting port\n");
3669 mutex_unlock(&mdev->state_lock);
3672 netdev_features_change(dev);