2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/etherdevice.h>
35 #include <linux/tcp.h>
36 #include <linux/if_vlan.h>
37 #include <linux/delay.h>
38 #include <linux/slab.h>
39 #include <linux/hash.h>
41 #include <net/busy_poll.h>
42 #include <net/vxlan.h>
43 #include <net/devlink.h>
45 #include <linux/mlx4/driver.h>
46 #include <linux/mlx4/device.h>
47 #include <linux/mlx4/cmd.h>
48 #include <linux/mlx4/cq.h>
53 int mlx4_en_setup_tc(struct net_device
*dev
, u8 up
)
55 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
57 unsigned int offset
= 0;
59 if (up
&& up
!= MLX4_EN_NUM_UP
)
62 netdev_set_num_tc(dev
, up
);
64 /* Partition Tx queues evenly amongst UP's */
65 for (i
= 0; i
< up
; i
++) {
66 netdev_set_tc_queue(dev
, i
, priv
->num_tx_rings_p_up
, offset
);
67 offset
+= priv
->num_tx_rings_p_up
;
73 static int __mlx4_en_setup_tc(struct net_device
*dev
, u32 handle
, __be16 proto
,
74 struct tc_to_netdev
*tc
)
76 if (tc
->type
!= TC_SETUP_MQPRIO
)
79 return mlx4_en_setup_tc(dev
, tc
->tc
);
82 #ifdef CONFIG_RFS_ACCEL
84 struct mlx4_en_filter
{
85 struct list_head next
;
86 struct work_struct work
;
95 struct mlx4_en_priv
*priv
;
96 u32 flow_id
; /* RFS infrastructure id */
97 int id
; /* mlx4_en driver id */
98 u64 reg_id
; /* Flow steering API id */
99 u8 activated
; /* Used to prevent expiry before filter
102 struct hlist_node filter_chain
;
105 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
);
107 static enum mlx4_net_trans_rule_id
mlx4_ip_proto_to_trans_rule_id(u8 ip_proto
)
111 return MLX4_NET_TRANS_RULE_ID_UDP
;
113 return MLX4_NET_TRANS_RULE_ID_TCP
;
115 return MLX4_NET_TRANS_RULE_NUM
;
119 static void mlx4_en_filter_work(struct work_struct
*work
)
121 struct mlx4_en_filter
*filter
= container_of(work
,
122 struct mlx4_en_filter
,
124 struct mlx4_en_priv
*priv
= filter
->priv
;
125 struct mlx4_spec_list spec_tcp_udp
= {
126 .id
= mlx4_ip_proto_to_trans_rule_id(filter
->ip_proto
),
129 .dst_port
= filter
->dst_port
,
130 .dst_port_msk
= (__force __be16
)-1,
131 .src_port
= filter
->src_port
,
132 .src_port_msk
= (__force __be16
)-1,
136 struct mlx4_spec_list spec_ip
= {
137 .id
= MLX4_NET_TRANS_RULE_ID_IPV4
,
140 .dst_ip
= filter
->dst_ip
,
141 .dst_ip_msk
= (__force __be32
)-1,
142 .src_ip
= filter
->src_ip
,
143 .src_ip_msk
= (__force __be32
)-1,
147 struct mlx4_spec_list spec_eth
= {
148 .id
= MLX4_NET_TRANS_RULE_ID_ETH
,
150 struct mlx4_net_trans_rule rule
= {
151 .list
= LIST_HEAD_INIT(rule
.list
),
152 .queue_mode
= MLX4_NET_TRANS_Q_LIFO
,
155 .promisc_mode
= MLX4_FS_REGULAR
,
157 .priority
= MLX4_DOMAIN_RFS
,
160 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
162 if (spec_tcp_udp
.id
>= MLX4_NET_TRANS_RULE_NUM
) {
163 en_warn(priv
, "RFS: ignoring unsupported ip protocol (%d)\n",
167 list_add_tail(&spec_eth
.list
, &rule
.list
);
168 list_add_tail(&spec_ip
.list
, &rule
.list
);
169 list_add_tail(&spec_tcp_udp
.list
, &rule
.list
);
171 rule
.qpn
= priv
->rss_map
.qps
[filter
->rxq_index
].qpn
;
172 memcpy(spec_eth
.eth
.dst_mac
, priv
->dev
->dev_addr
, ETH_ALEN
);
173 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
175 filter
->activated
= 0;
177 if (filter
->reg_id
) {
178 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
179 if (rc
&& rc
!= -ENOENT
)
180 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
183 rc
= mlx4_flow_attach(priv
->mdev
->dev
, &rule
, &filter
->reg_id
);
185 en_err(priv
, "Error attaching flow. err = %d\n", rc
);
188 mlx4_en_filter_rfs_expire(priv
);
190 filter
->activated
= 1;
193 static inline struct hlist_head
*
194 filter_hash_bucket(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
195 __be16 src_port
, __be16 dst_port
)
200 l
= (__force
unsigned long)src_port
|
201 ((__force
unsigned long)dst_port
<< 2);
202 l
^= (__force
unsigned long)(src_ip
^ dst_ip
);
204 bucket_idx
= hash_long(l
, MLX4_EN_FILTER_HASH_SHIFT
);
206 return &priv
->filter_hash
[bucket_idx
];
209 static struct mlx4_en_filter
*
210 mlx4_en_filter_alloc(struct mlx4_en_priv
*priv
, int rxq_index
, __be32 src_ip
,
211 __be32 dst_ip
, u8 ip_proto
, __be16 src_port
,
212 __be16 dst_port
, u32 flow_id
)
214 struct mlx4_en_filter
*filter
= NULL
;
216 filter
= kzalloc(sizeof(struct mlx4_en_filter
), GFP_ATOMIC
);
221 filter
->rxq_index
= rxq_index
;
222 INIT_WORK(&filter
->work
, mlx4_en_filter_work
);
224 filter
->src_ip
= src_ip
;
225 filter
->dst_ip
= dst_ip
;
226 filter
->ip_proto
= ip_proto
;
227 filter
->src_port
= src_port
;
228 filter
->dst_port
= dst_port
;
230 filter
->flow_id
= flow_id
;
232 filter
->id
= priv
->last_filter_id
++ % RPS_NO_FILTER
;
234 list_add_tail(&filter
->next
, &priv
->filters
);
235 hlist_add_head(&filter
->filter_chain
,
236 filter_hash_bucket(priv
, src_ip
, dst_ip
, src_port
,
242 static void mlx4_en_filter_free(struct mlx4_en_filter
*filter
)
244 struct mlx4_en_priv
*priv
= filter
->priv
;
247 list_del(&filter
->next
);
249 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
250 if (rc
&& rc
!= -ENOENT
)
251 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
256 static inline struct mlx4_en_filter
*
257 mlx4_en_filter_find(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
258 u8 ip_proto
, __be16 src_port
, __be16 dst_port
)
260 struct mlx4_en_filter
*filter
;
261 struct mlx4_en_filter
*ret
= NULL
;
263 hlist_for_each_entry(filter
,
264 filter_hash_bucket(priv
, src_ip
, dst_ip
,
267 if (filter
->src_ip
== src_ip
&&
268 filter
->dst_ip
== dst_ip
&&
269 filter
->ip_proto
== ip_proto
&&
270 filter
->src_port
== src_port
&&
271 filter
->dst_port
== dst_port
) {
281 mlx4_en_filter_rfs(struct net_device
*net_dev
, const struct sk_buff
*skb
,
282 u16 rxq_index
, u32 flow_id
)
284 struct mlx4_en_priv
*priv
= netdev_priv(net_dev
);
285 struct mlx4_en_filter
*filter
;
286 const struct iphdr
*ip
;
293 int nhoff
= skb_network_offset(skb
);
296 if (skb
->protocol
!= htons(ETH_P_IP
))
297 return -EPROTONOSUPPORT
;
299 ip
= (const struct iphdr
*)(skb
->data
+ nhoff
);
300 if (ip_is_fragment(ip
))
301 return -EPROTONOSUPPORT
;
303 if ((ip
->protocol
!= IPPROTO_TCP
) && (ip
->protocol
!= IPPROTO_UDP
))
304 return -EPROTONOSUPPORT
;
305 ports
= (const __be16
*)(skb
->data
+ nhoff
+ 4 * ip
->ihl
);
307 ip_proto
= ip
->protocol
;
313 spin_lock_bh(&priv
->filters_lock
);
314 filter
= mlx4_en_filter_find(priv
, src_ip
, dst_ip
, ip_proto
,
317 if (filter
->rxq_index
== rxq_index
)
320 filter
->rxq_index
= rxq_index
;
322 filter
= mlx4_en_filter_alloc(priv
, rxq_index
,
323 src_ip
, dst_ip
, ip_proto
,
324 src_port
, dst_port
, flow_id
);
331 queue_work(priv
->mdev
->workqueue
, &filter
->work
);
336 spin_unlock_bh(&priv
->filters_lock
);
341 void mlx4_en_cleanup_filters(struct mlx4_en_priv
*priv
)
343 struct mlx4_en_filter
*filter
, *tmp
;
346 spin_lock_bh(&priv
->filters_lock
);
347 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
348 list_move(&filter
->next
, &del_list
);
349 hlist_del(&filter
->filter_chain
);
351 spin_unlock_bh(&priv
->filters_lock
);
353 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
) {
354 cancel_work_sync(&filter
->work
);
355 mlx4_en_filter_free(filter
);
359 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
)
361 struct mlx4_en_filter
*filter
= NULL
, *tmp
, *last_filter
= NULL
;
365 spin_lock_bh(&priv
->filters_lock
);
366 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
367 if (i
> MLX4_EN_FILTER_EXPIRY_QUOTA
)
370 if (filter
->activated
&&
371 !work_pending(&filter
->work
) &&
372 rps_may_expire_flow(priv
->dev
,
373 filter
->rxq_index
, filter
->flow_id
,
375 list_move(&filter
->next
, &del_list
);
376 hlist_del(&filter
->filter_chain
);
378 last_filter
= filter
;
383 if (last_filter
&& (&last_filter
->next
!= priv
->filters
.next
))
384 list_move(&priv
->filters
, &last_filter
->next
);
386 spin_unlock_bh(&priv
->filters_lock
);
388 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
)
389 mlx4_en_filter_free(filter
);
393 static int mlx4_en_vlan_rx_add_vid(struct net_device
*dev
,
394 __be16 proto
, u16 vid
)
396 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
397 struct mlx4_en_dev
*mdev
= priv
->mdev
;
401 en_dbg(HW
, priv
, "adding VLAN:%d\n", vid
);
403 set_bit(vid
, priv
->active_vlans
);
405 /* Add VID to port VLAN filter */
406 mutex_lock(&mdev
->state_lock
);
407 if (mdev
->device_up
&& priv
->port_up
) {
408 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
410 en_err(priv
, "Failed configuring VLAN filter\n");
412 if (mlx4_register_vlan(mdev
->dev
, priv
->port
, vid
, &idx
))
413 en_dbg(HW
, priv
, "failed adding vlan %d\n", vid
);
414 mutex_unlock(&mdev
->state_lock
);
419 static int mlx4_en_vlan_rx_kill_vid(struct net_device
*dev
,
420 __be16 proto
, u16 vid
)
422 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
423 struct mlx4_en_dev
*mdev
= priv
->mdev
;
426 en_dbg(HW
, priv
, "Killing VID:%d\n", vid
);
428 clear_bit(vid
, priv
->active_vlans
);
430 /* Remove VID from port VLAN filter */
431 mutex_lock(&mdev
->state_lock
);
432 mlx4_unregister_vlan(mdev
->dev
, priv
->port
, vid
);
434 if (mdev
->device_up
&& priv
->port_up
) {
435 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
437 en_err(priv
, "Failed configuring VLAN filter\n");
439 mutex_unlock(&mdev
->state_lock
);
444 static void mlx4_en_u64_to_mac(unsigned char dst_mac
[ETH_ALEN
+ 2], u64 src_mac
)
447 for (i
= ETH_ALEN
- 1; i
>= 0; --i
) {
448 dst_mac
[i
] = src_mac
& 0xff;
451 memset(&dst_mac
[ETH_ALEN
], 0, 2);
455 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv
*priv
, unsigned char *addr
,
456 int qpn
, u64
*reg_id
)
460 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
||
461 priv
->mdev
->dev
->caps
.dmfs_high_steer_mode
== MLX4_STEERING_DMFS_A0_STATIC
)
462 return 0; /* do nothing */
464 err
= mlx4_tunnel_steer_add(priv
->mdev
->dev
, addr
, priv
->port
, qpn
,
465 MLX4_DOMAIN_NIC
, reg_id
);
467 en_err(priv
, "failed to add vxlan steering rule, err %d\n", err
);
470 en_dbg(DRV
, priv
, "added vxlan steering rule, mac %pM reg_id %llx\n", addr
, *reg_id
);
475 static int mlx4_en_uc_steer_add(struct mlx4_en_priv
*priv
,
476 unsigned char *mac
, int *qpn
, u64
*reg_id
)
478 struct mlx4_en_dev
*mdev
= priv
->mdev
;
479 struct mlx4_dev
*dev
= mdev
->dev
;
482 switch (dev
->caps
.steering_mode
) {
483 case MLX4_STEERING_MODE_B0
: {
488 memcpy(&gid
[10], mac
, ETH_ALEN
);
491 err
= mlx4_unicast_attach(dev
, &qp
, gid
, 0, MLX4_PROT_ETH
);
494 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
495 struct mlx4_spec_list spec_eth
= { {NULL
} };
496 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
498 struct mlx4_net_trans_rule rule
= {
499 .queue_mode
= MLX4_NET_TRANS_Q_FIFO
,
502 .promisc_mode
= MLX4_FS_REGULAR
,
503 .priority
= MLX4_DOMAIN_NIC
,
506 rule
.port
= priv
->port
;
508 INIT_LIST_HEAD(&rule
.list
);
510 spec_eth
.id
= MLX4_NET_TRANS_RULE_ID_ETH
;
511 memcpy(spec_eth
.eth
.dst_mac
, mac
, ETH_ALEN
);
512 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
513 list_add_tail(&spec_eth
.list
, &rule
.list
);
515 err
= mlx4_flow_attach(dev
, &rule
, reg_id
);
522 en_warn(priv
, "Failed Attaching Unicast\n");
527 static void mlx4_en_uc_steer_release(struct mlx4_en_priv
*priv
,
528 unsigned char *mac
, int qpn
, u64 reg_id
)
530 struct mlx4_en_dev
*mdev
= priv
->mdev
;
531 struct mlx4_dev
*dev
= mdev
->dev
;
533 switch (dev
->caps
.steering_mode
) {
534 case MLX4_STEERING_MODE_B0
: {
539 memcpy(&gid
[10], mac
, ETH_ALEN
);
542 mlx4_unicast_detach(dev
, &qp
, gid
, MLX4_PROT_ETH
);
545 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
546 mlx4_flow_detach(dev
, reg_id
);
550 en_err(priv
, "Invalid steering mode.\n");
554 static int mlx4_en_get_qp(struct mlx4_en_priv
*priv
)
556 struct mlx4_en_dev
*mdev
= priv
->mdev
;
557 struct mlx4_dev
*dev
= mdev
->dev
;
560 int *qpn
= &priv
->base_qpn
;
561 u64 mac
= mlx4_mac_to_u64(priv
->dev
->dev_addr
);
563 en_dbg(DRV
, priv
, "Registering MAC: %pM for adding\n",
564 priv
->dev
->dev_addr
);
565 index
= mlx4_register_mac(dev
, priv
->port
, mac
);
568 en_err(priv
, "Failed adding MAC: %pM\n",
569 priv
->dev
->dev_addr
);
573 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
574 int base_qpn
= mlx4_get_base_qpn(dev
, priv
->port
);
575 *qpn
= base_qpn
+ index
;
579 err
= mlx4_qp_reserve_range(dev
, 1, 1, qpn
, MLX4_RESERVE_A0_QP
);
580 en_dbg(DRV
, priv
, "Reserved qp %d\n", *qpn
);
582 en_err(priv
, "Failed to reserve qp for mac registration\n");
583 mlx4_unregister_mac(dev
, priv
->port
, mac
);
590 static void mlx4_en_put_qp(struct mlx4_en_priv
*priv
)
592 struct mlx4_en_dev
*mdev
= priv
->mdev
;
593 struct mlx4_dev
*dev
= mdev
->dev
;
594 int qpn
= priv
->base_qpn
;
596 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
597 u64 mac
= mlx4_mac_to_u64(priv
->dev
->dev_addr
);
598 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
599 priv
->dev
->dev_addr
);
600 mlx4_unregister_mac(dev
, priv
->port
, mac
);
602 en_dbg(DRV
, priv
, "Releasing qp: port %d, qpn %d\n",
604 mlx4_qp_release_range(dev
, qpn
, 1);
605 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
609 static int mlx4_en_replace_mac(struct mlx4_en_priv
*priv
, int qpn
,
610 unsigned char *new_mac
, unsigned char *prev_mac
)
612 struct mlx4_en_dev
*mdev
= priv
->mdev
;
613 struct mlx4_dev
*dev
= mdev
->dev
;
615 u64 new_mac_u64
= mlx4_mac_to_u64(new_mac
);
617 if (dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
) {
618 struct hlist_head
*bucket
;
619 unsigned int mac_hash
;
620 struct mlx4_mac_entry
*entry
;
621 struct hlist_node
*tmp
;
622 u64 prev_mac_u64
= mlx4_mac_to_u64(prev_mac
);
624 bucket
= &priv
->mac_hash
[prev_mac
[MLX4_EN_MAC_HASH_IDX
]];
625 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
626 if (ether_addr_equal_64bits(entry
->mac
, prev_mac
)) {
627 mlx4_en_uc_steer_release(priv
, entry
->mac
,
629 mlx4_unregister_mac(dev
, priv
->port
,
631 hlist_del_rcu(&entry
->hlist
);
633 memcpy(entry
->mac
, new_mac
, ETH_ALEN
);
635 mac_hash
= new_mac
[MLX4_EN_MAC_HASH_IDX
];
636 hlist_add_head_rcu(&entry
->hlist
,
637 &priv
->mac_hash
[mac_hash
]);
638 mlx4_register_mac(dev
, priv
->port
, new_mac_u64
);
639 err
= mlx4_en_uc_steer_add(priv
, new_mac
,
644 if (priv
->tunnel_reg_id
) {
645 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
646 priv
->tunnel_reg_id
= 0;
648 err
= mlx4_en_tunnel_steer_add(priv
, new_mac
, qpn
,
649 &priv
->tunnel_reg_id
);
656 return __mlx4_replace_mac(dev
, priv
->port
, qpn
, new_mac_u64
);
659 static int mlx4_en_do_set_mac(struct mlx4_en_priv
*priv
,
660 unsigned char new_mac
[ETH_ALEN
+ 2])
665 /* Remove old MAC and insert the new one */
666 err
= mlx4_en_replace_mac(priv
, priv
->base_qpn
,
667 new_mac
, priv
->current_mac
);
669 en_err(priv
, "Failed changing HW MAC address\n");
671 en_dbg(HW
, priv
, "Port is down while registering mac, exiting...\n");
674 memcpy(priv
->current_mac
, new_mac
, sizeof(priv
->current_mac
));
679 static int mlx4_en_set_mac(struct net_device
*dev
, void *addr
)
681 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
682 struct mlx4_en_dev
*mdev
= priv
->mdev
;
683 struct sockaddr
*saddr
= addr
;
684 unsigned char new_mac
[ETH_ALEN
+ 2];
687 if (!is_valid_ether_addr(saddr
->sa_data
))
688 return -EADDRNOTAVAIL
;
690 mutex_lock(&mdev
->state_lock
);
691 memcpy(new_mac
, saddr
->sa_data
, ETH_ALEN
);
692 err
= mlx4_en_do_set_mac(priv
, new_mac
);
694 memcpy(dev
->dev_addr
, saddr
->sa_data
, ETH_ALEN
);
695 mutex_unlock(&mdev
->state_lock
);
700 static void mlx4_en_clear_list(struct net_device
*dev
)
702 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
703 struct mlx4_en_mc_list
*tmp
, *mc_to_del
;
705 list_for_each_entry_safe(mc_to_del
, tmp
, &priv
->mc_list
, list
) {
706 list_del(&mc_to_del
->list
);
711 static void mlx4_en_cache_mclist(struct net_device
*dev
)
713 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
714 struct netdev_hw_addr
*ha
;
715 struct mlx4_en_mc_list
*tmp
;
717 mlx4_en_clear_list(dev
);
718 netdev_for_each_mc_addr(ha
, dev
) {
719 tmp
= kzalloc(sizeof(struct mlx4_en_mc_list
), GFP_ATOMIC
);
721 mlx4_en_clear_list(dev
);
724 memcpy(tmp
->addr
, ha
->addr
, ETH_ALEN
);
725 list_add_tail(&tmp
->list
, &priv
->mc_list
);
729 static void update_mclist_flags(struct mlx4_en_priv
*priv
,
730 struct list_head
*dst
,
731 struct list_head
*src
)
733 struct mlx4_en_mc_list
*dst_tmp
, *src_tmp
, *new_mc
;
736 /* Find all the entries that should be removed from dst,
737 * These are the entries that are not found in src
739 list_for_each_entry(dst_tmp
, dst
, list
) {
741 list_for_each_entry(src_tmp
, src
, list
) {
742 if (ether_addr_equal(dst_tmp
->addr
, src_tmp
->addr
)) {
748 dst_tmp
->action
= MCLIST_REM
;
751 /* Add entries that exist in src but not in dst
752 * mark them as need to add
754 list_for_each_entry(src_tmp
, src
, list
) {
756 list_for_each_entry(dst_tmp
, dst
, list
) {
757 if (ether_addr_equal(dst_tmp
->addr
, src_tmp
->addr
)) {
758 dst_tmp
->action
= MCLIST_NONE
;
764 new_mc
= kmemdup(src_tmp
,
765 sizeof(struct mlx4_en_mc_list
),
770 new_mc
->action
= MCLIST_ADD
;
771 list_add_tail(&new_mc
->list
, dst
);
776 static void mlx4_en_set_rx_mode(struct net_device
*dev
)
778 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
783 queue_work(priv
->mdev
->workqueue
, &priv
->rx_mode_task
);
786 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv
*priv
,
787 struct mlx4_en_dev
*mdev
)
791 if (!(priv
->flags
& MLX4_EN_FLAG_PROMISC
)) {
792 if (netif_msg_rx_status(priv
))
793 en_warn(priv
, "Entering promiscuous mode\n");
794 priv
->flags
|= MLX4_EN_FLAG_PROMISC
;
796 /* Enable promiscouos mode */
797 switch (mdev
->dev
->caps
.steering_mode
) {
798 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
799 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
802 MLX4_FS_ALL_DEFAULT
);
804 en_err(priv
, "Failed enabling promiscuous mode\n");
805 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
808 case MLX4_STEERING_MODE_B0
:
809 err
= mlx4_unicast_promisc_add(mdev
->dev
,
813 en_err(priv
, "Failed enabling unicast promiscuous mode\n");
815 /* Add the default qp number as multicast
818 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
819 err
= mlx4_multicast_promisc_add(mdev
->dev
,
823 en_err(priv
, "Failed enabling multicast promiscuous mode\n");
824 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
828 case MLX4_STEERING_MODE_A0
:
829 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
834 en_err(priv
, "Failed enabling promiscuous mode\n");
838 /* Disable port multicast filter (unconditionally) */
839 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
840 0, MLX4_MCAST_DISABLE
);
842 en_err(priv
, "Failed disabling multicast filter\n");
846 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv
*priv
,
847 struct mlx4_en_dev
*mdev
)
851 if (netif_msg_rx_status(priv
))
852 en_warn(priv
, "Leaving promiscuous mode\n");
853 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
855 /* Disable promiscouos mode */
856 switch (mdev
->dev
->caps
.steering_mode
) {
857 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
858 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
860 MLX4_FS_ALL_DEFAULT
);
862 en_err(priv
, "Failed disabling promiscuous mode\n");
863 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
866 case MLX4_STEERING_MODE_B0
:
867 err
= mlx4_unicast_promisc_remove(mdev
->dev
,
871 en_err(priv
, "Failed disabling unicast promiscuous mode\n");
872 /* Disable Multicast promisc */
873 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
874 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
878 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
879 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
883 case MLX4_STEERING_MODE_A0
:
884 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
888 en_err(priv
, "Failed disabling promiscuous mode\n");
893 static void mlx4_en_do_multicast(struct mlx4_en_priv
*priv
,
894 struct net_device
*dev
,
895 struct mlx4_en_dev
*mdev
)
897 struct mlx4_en_mc_list
*mclist
, *tmp
;
899 u8 mc_list
[16] = {0};
902 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
903 if (dev
->flags
& IFF_ALLMULTI
) {
904 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
905 0, MLX4_MCAST_DISABLE
);
907 en_err(priv
, "Failed disabling multicast filter\n");
909 /* Add the default qp number as multicast promisc */
910 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
911 switch (mdev
->dev
->caps
.steering_mode
) {
912 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
913 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
919 case MLX4_STEERING_MODE_B0
:
920 err
= mlx4_multicast_promisc_add(mdev
->dev
,
925 case MLX4_STEERING_MODE_A0
:
929 en_err(priv
, "Failed entering multicast promisc mode\n");
930 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
933 /* Disable Multicast promisc */
934 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
935 switch (mdev
->dev
->caps
.steering_mode
) {
936 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
937 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
942 case MLX4_STEERING_MODE_B0
:
943 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
948 case MLX4_STEERING_MODE_A0
:
952 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
953 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
956 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
957 0, MLX4_MCAST_DISABLE
);
959 en_err(priv
, "Failed disabling multicast filter\n");
961 /* Flush mcast filter and init it with broadcast address */
962 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, ETH_BCAST
,
963 1, MLX4_MCAST_CONFIG
);
965 /* Update multicast list - we cache all addresses so they won't
966 * change while HW is updated holding the command semaphor */
967 netif_addr_lock_bh(dev
);
968 mlx4_en_cache_mclist(dev
);
969 netif_addr_unlock_bh(dev
);
970 list_for_each_entry(mclist
, &priv
->mc_list
, list
) {
971 mcast_addr
= mlx4_mac_to_u64(mclist
->addr
);
972 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
,
973 mcast_addr
, 0, MLX4_MCAST_CONFIG
);
975 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
976 0, MLX4_MCAST_ENABLE
);
978 en_err(priv
, "Failed enabling multicast filter\n");
980 update_mclist_flags(priv
, &priv
->curr_list
, &priv
->mc_list
);
981 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
982 if (mclist
->action
== MCLIST_REM
) {
983 /* detach this address and delete from list */
984 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
985 mc_list
[5] = priv
->port
;
986 err
= mlx4_multicast_detach(mdev
->dev
,
987 &priv
->rss_map
.indir_qp
,
992 en_err(priv
, "Fail to detach multicast address\n");
994 if (mclist
->tunnel_reg_id
) {
995 err
= mlx4_flow_detach(priv
->mdev
->dev
, mclist
->tunnel_reg_id
);
997 en_err(priv
, "Failed to detach multicast address\n");
1000 /* remove from list */
1001 list_del(&mclist
->list
);
1003 } else if (mclist
->action
== MCLIST_ADD
) {
1004 /* attach the address */
1005 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1006 /* needed for B0 steering support */
1007 mc_list
[5] = priv
->port
;
1008 err
= mlx4_multicast_attach(mdev
->dev
,
1009 &priv
->rss_map
.indir_qp
,
1015 en_err(priv
, "Fail to attach multicast address\n");
1017 err
= mlx4_en_tunnel_steer_add(priv
, &mc_list
[10], priv
->base_qpn
,
1018 &mclist
->tunnel_reg_id
);
1020 en_err(priv
, "Failed to attach multicast address\n");
1026 static void mlx4_en_do_uc_filter(struct mlx4_en_priv
*priv
,
1027 struct net_device
*dev
,
1028 struct mlx4_en_dev
*mdev
)
1030 struct netdev_hw_addr
*ha
;
1031 struct mlx4_mac_entry
*entry
;
1032 struct hlist_node
*tmp
;
1036 struct hlist_head
*bucket
;
1041 /* Note that we do not need to protect our mac_hash traversal with rcu,
1042 * since all modification code is protected by mdev->state_lock
1045 /* find what to remove */
1046 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1047 bucket
= &priv
->mac_hash
[i
];
1048 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1050 netdev_for_each_uc_addr(ha
, dev
) {
1051 if (ether_addr_equal_64bits(entry
->mac
,
1058 /* MAC address of the port is not in uc list */
1059 if (ether_addr_equal_64bits(entry
->mac
,
1064 mac
= mlx4_mac_to_u64(entry
->mac
);
1065 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1068 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1070 hlist_del_rcu(&entry
->hlist
);
1071 kfree_rcu(entry
, rcu
);
1072 en_dbg(DRV
, priv
, "Removed MAC %pM on port:%d\n",
1073 entry
->mac
, priv
->port
);
1079 /* if we didn't remove anything, there is no use in trying to add
1080 * again once we are in a forced promisc mode state
1082 if ((priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) && 0 == removed
)
1085 prev_flags
= priv
->flags
;
1086 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
1088 /* find what to add */
1089 netdev_for_each_uc_addr(ha
, dev
) {
1091 bucket
= &priv
->mac_hash
[ha
->addr
[MLX4_EN_MAC_HASH_IDX
]];
1092 hlist_for_each_entry(entry
, bucket
, hlist
) {
1093 if (ether_addr_equal_64bits(entry
->mac
, ha
->addr
)) {
1100 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1102 en_err(priv
, "Failed adding MAC %pM on port:%d (out of memory)\n",
1103 ha
->addr
, priv
->port
);
1104 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1107 mac
= mlx4_mac_to_u64(ha
->addr
);
1108 memcpy(entry
->mac
, ha
->addr
, ETH_ALEN
);
1109 err
= mlx4_register_mac(mdev
->dev
, priv
->port
, mac
);
1111 en_err(priv
, "Failed registering MAC %pM on port %d: %d\n",
1112 ha
->addr
, priv
->port
, err
);
1114 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1117 err
= mlx4_en_uc_steer_add(priv
, ha
->addr
,
1121 en_err(priv
, "Failed adding MAC %pM on port %d: %d\n",
1122 ha
->addr
, priv
->port
, err
);
1123 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1125 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1128 unsigned int mac_hash
;
1129 en_dbg(DRV
, priv
, "Added MAC %pM on port:%d\n",
1130 ha
->addr
, priv
->port
);
1131 mac_hash
= ha
->addr
[MLX4_EN_MAC_HASH_IDX
];
1132 bucket
= &priv
->mac_hash
[mac_hash
];
1133 hlist_add_head_rcu(&entry
->hlist
, bucket
);
1138 if (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1139 en_warn(priv
, "Forcing promiscuous mode on port:%d\n",
1141 } else if (prev_flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1142 en_warn(priv
, "Stop forcing promiscuous mode on port:%d\n",
1147 static void mlx4_en_do_set_rx_mode(struct work_struct
*work
)
1149 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1151 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1152 struct net_device
*dev
= priv
->dev
;
1154 mutex_lock(&mdev
->state_lock
);
1155 if (!mdev
->device_up
) {
1156 en_dbg(HW
, priv
, "Card is not up, ignoring rx mode change.\n");
1159 if (!priv
->port_up
) {
1160 en_dbg(HW
, priv
, "Port is down, ignoring rx mode change.\n");
1164 if (!netif_carrier_ok(dev
)) {
1165 if (!mlx4_en_QUERY_PORT(mdev
, priv
->port
)) {
1166 if (priv
->port_state
.link_state
) {
1167 priv
->last_link_state
= MLX4_DEV_EVENT_PORT_UP
;
1168 netif_carrier_on(dev
);
1169 en_dbg(LINK
, priv
, "Link Up\n");
1174 if (dev
->priv_flags
& IFF_UNICAST_FLT
)
1175 mlx4_en_do_uc_filter(priv
, dev
, mdev
);
1177 /* Promsicuous mode: disable all filters */
1178 if ((dev
->flags
& IFF_PROMISC
) ||
1179 (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
)) {
1180 mlx4_en_set_promisc_mode(priv
, mdev
);
1184 /* Not in promiscuous mode */
1185 if (priv
->flags
& MLX4_EN_FLAG_PROMISC
)
1186 mlx4_en_clear_promisc_mode(priv
, mdev
);
1188 mlx4_en_do_multicast(priv
, dev
, mdev
);
1190 mutex_unlock(&mdev
->state_lock
);
1193 #ifdef CONFIG_NET_POLL_CONTROLLER
1194 static void mlx4_en_netpoll(struct net_device
*dev
)
1196 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1197 struct mlx4_en_cq
*cq
;
1200 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1201 cq
= priv
->rx_cq
[i
];
1202 napi_schedule(&cq
->napi
);
1207 static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv
*priv
)
1211 int *qpn
= &priv
->base_qpn
;
1212 struct mlx4_mac_entry
*entry
;
1214 err
= mlx4_en_uc_steer_add(priv
, priv
->dev
->dev_addr
, qpn
, ®_id
);
1218 err
= mlx4_en_tunnel_steer_add(priv
, priv
->dev
->dev_addr
, *qpn
,
1219 &priv
->tunnel_reg_id
);
1223 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1229 memcpy(entry
->mac
, priv
->dev
->dev_addr
, sizeof(entry
->mac
));
1230 memcpy(priv
->current_mac
, entry
->mac
, sizeof(priv
->current_mac
));
1231 entry
->reg_id
= reg_id
;
1232 hlist_add_head_rcu(&entry
->hlist
,
1233 &priv
->mac_hash
[entry
->mac
[MLX4_EN_MAC_HASH_IDX
]]);
1238 if (priv
->tunnel_reg_id
)
1239 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
1242 mlx4_en_uc_steer_release(priv
, priv
->dev
->dev_addr
, *qpn
, reg_id
);
1246 static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv
*priv
)
1250 int qpn
= priv
->base_qpn
;
1251 struct hlist_head
*bucket
;
1252 struct hlist_node
*tmp
;
1253 struct mlx4_mac_entry
*entry
;
1255 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1256 bucket
= &priv
->mac_hash
[i
];
1257 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1258 mac
= mlx4_mac_to_u64(entry
->mac
);
1259 en_dbg(DRV
, priv
, "Registering MAC:%pM for deleting\n",
1261 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1262 qpn
, entry
->reg_id
);
1264 mlx4_unregister_mac(priv
->mdev
->dev
, priv
->port
, mac
);
1265 hlist_del_rcu(&entry
->hlist
);
1266 kfree_rcu(entry
, rcu
);
1270 if (priv
->tunnel_reg_id
) {
1271 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
1272 priv
->tunnel_reg_id
= 0;
1276 static void mlx4_en_tx_timeout(struct net_device
*dev
)
1278 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1279 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1282 if (netif_msg_timer(priv
))
1283 en_warn(priv
, "Tx timeout called on port:%d\n", priv
->port
);
1285 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1286 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev
, i
)))
1288 en_warn(priv
, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1289 i
, priv
->tx_ring
[i
]->qpn
, priv
->tx_ring
[i
]->cqn
,
1290 priv
->tx_ring
[i
]->cons
, priv
->tx_ring
[i
]->prod
);
1293 priv
->port_stats
.tx_timeout
++;
1294 en_dbg(DRV
, priv
, "Scheduling watchdog\n");
1295 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1299 static struct net_device_stats
*mlx4_en_get_stats(struct net_device
*dev
)
1301 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1303 spin_lock_bh(&priv
->stats_lock
);
1304 memcpy(&priv
->ret_stats
, &priv
->stats
, sizeof(priv
->stats
));
1305 spin_unlock_bh(&priv
->stats_lock
);
1307 return &priv
->ret_stats
;
1310 static void mlx4_en_set_default_moderation(struct mlx4_en_priv
*priv
)
1312 struct mlx4_en_cq
*cq
;
1315 /* If we haven't received a specific coalescing setting
1316 * (module param), we set the moderation parameters as follows:
1317 * - moder_cnt is set to the number of mtu sized packets to
1318 * satisfy our coalescing target.
1319 * - moder_time is set to a fixed value.
1321 priv
->rx_frames
= MLX4_EN_RX_COAL_TARGET
;
1322 priv
->rx_usecs
= MLX4_EN_RX_COAL_TIME
;
1323 priv
->tx_frames
= MLX4_EN_TX_COAL_PKTS
;
1324 priv
->tx_usecs
= MLX4_EN_TX_COAL_TIME
;
1325 en_dbg(INTR
, priv
, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1326 priv
->dev
->mtu
, priv
->rx_frames
, priv
->rx_usecs
);
1328 /* Setup cq moderation params */
1329 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1330 cq
= priv
->rx_cq
[i
];
1331 cq
->moder_cnt
= priv
->rx_frames
;
1332 cq
->moder_time
= priv
->rx_usecs
;
1333 priv
->last_moder_time
[i
] = MLX4_EN_AUTO_CONF
;
1334 priv
->last_moder_packets
[i
] = 0;
1335 priv
->last_moder_bytes
[i
] = 0;
1338 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1339 cq
= priv
->tx_cq
[i
];
1340 cq
->moder_cnt
= priv
->tx_frames
;
1341 cq
->moder_time
= priv
->tx_usecs
;
1344 /* Reset auto-moderation params */
1345 priv
->pkt_rate_low
= MLX4_EN_RX_RATE_LOW
;
1346 priv
->rx_usecs_low
= MLX4_EN_RX_COAL_TIME_LOW
;
1347 priv
->pkt_rate_high
= MLX4_EN_RX_RATE_HIGH
;
1348 priv
->rx_usecs_high
= MLX4_EN_RX_COAL_TIME_HIGH
;
1349 priv
->sample_interval
= MLX4_EN_SAMPLE_INTERVAL
;
1350 priv
->adaptive_rx_coal
= 1;
1351 priv
->last_moder_jiffies
= 0;
1352 priv
->last_moder_tx_packets
= 0;
1355 static void mlx4_en_auto_moderation(struct mlx4_en_priv
*priv
)
1357 unsigned long period
= (unsigned long) (jiffies
- priv
->last_moder_jiffies
);
1358 struct mlx4_en_cq
*cq
;
1359 unsigned long packets
;
1361 unsigned long avg_pkt_size
;
1362 unsigned long rx_packets
;
1363 unsigned long rx_bytes
;
1364 unsigned long rx_pkt_diff
;
1368 if (!priv
->adaptive_rx_coal
|| period
< priv
->sample_interval
* HZ
)
1371 for (ring
= 0; ring
< priv
->rx_ring_num
; ring
++) {
1372 spin_lock_bh(&priv
->stats_lock
);
1373 rx_packets
= priv
->rx_ring
[ring
]->packets
;
1374 rx_bytes
= priv
->rx_ring
[ring
]->bytes
;
1375 spin_unlock_bh(&priv
->stats_lock
);
1377 rx_pkt_diff
= ((unsigned long) (rx_packets
-
1378 priv
->last_moder_packets
[ring
]));
1379 packets
= rx_pkt_diff
;
1380 rate
= packets
* HZ
/ period
;
1381 avg_pkt_size
= packets
? ((unsigned long) (rx_bytes
-
1382 priv
->last_moder_bytes
[ring
])) / packets
: 0;
1384 /* Apply auto-moderation only when packet rate
1385 * exceeds a rate that it matters */
1386 if (rate
> (MLX4_EN_RX_RATE_THRESH
/ priv
->rx_ring_num
) &&
1387 avg_pkt_size
> MLX4_EN_AVG_PKT_SMALL
) {
1388 if (rate
< priv
->pkt_rate_low
)
1389 moder_time
= priv
->rx_usecs_low
;
1390 else if (rate
> priv
->pkt_rate_high
)
1391 moder_time
= priv
->rx_usecs_high
;
1393 moder_time
= (rate
- priv
->pkt_rate_low
) *
1394 (priv
->rx_usecs_high
- priv
->rx_usecs_low
) /
1395 (priv
->pkt_rate_high
- priv
->pkt_rate_low
) +
1398 moder_time
= priv
->rx_usecs_low
;
1401 if (moder_time
!= priv
->last_moder_time
[ring
]) {
1402 priv
->last_moder_time
[ring
] = moder_time
;
1403 cq
= priv
->rx_cq
[ring
];
1404 cq
->moder_time
= moder_time
;
1405 cq
->moder_cnt
= priv
->rx_frames
;
1406 err
= mlx4_en_set_cq_moder(priv
, cq
);
1408 en_err(priv
, "Failed modifying moderation for cq:%d\n",
1411 priv
->last_moder_packets
[ring
] = rx_packets
;
1412 priv
->last_moder_bytes
[ring
] = rx_bytes
;
1415 priv
->last_moder_jiffies
= jiffies
;
1418 static void mlx4_en_do_get_stats(struct work_struct
*work
)
1420 struct delayed_work
*delay
= to_delayed_work(work
);
1421 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1423 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1426 mutex_lock(&mdev
->state_lock
);
1427 if (mdev
->device_up
) {
1428 if (priv
->port_up
) {
1429 err
= mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 0);
1431 en_dbg(HW
, priv
, "Could not update stats\n");
1433 mlx4_en_auto_moderation(priv
);
1436 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
1438 if (mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
]) {
1439 mlx4_en_do_set_mac(priv
, priv
->current_mac
);
1440 mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
] = 0;
1442 mutex_unlock(&mdev
->state_lock
);
1445 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1448 static void mlx4_en_service_task(struct work_struct
*work
)
1450 struct delayed_work
*delay
= to_delayed_work(work
);
1451 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1453 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1455 mutex_lock(&mdev
->state_lock
);
1456 if (mdev
->device_up
) {
1457 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
1458 mlx4_en_ptp_overflow_check(mdev
);
1460 mlx4_en_recover_from_oom(priv
);
1461 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
1462 SERVICE_TASK_DELAY
);
1464 mutex_unlock(&mdev
->state_lock
);
1467 static void mlx4_en_linkstate(struct work_struct
*work
)
1469 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1471 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1472 int linkstate
= priv
->link_state
;
1474 mutex_lock(&mdev
->state_lock
);
1475 /* If observable port state changed set carrier state and
1476 * report to system log */
1477 if (priv
->last_link_state
!= linkstate
) {
1478 if (linkstate
== MLX4_DEV_EVENT_PORT_DOWN
) {
1479 en_info(priv
, "Link Down\n");
1480 netif_carrier_off(priv
->dev
);
1482 en_info(priv
, "Link Up\n");
1483 netif_carrier_on(priv
->dev
);
1486 priv
->last_link_state
= linkstate
;
1487 mutex_unlock(&mdev
->state_lock
);
1490 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv
*priv
, int ring_idx
)
1492 struct mlx4_en_rx_ring
*ring
= priv
->rx_ring
[ring_idx
];
1493 int numa_node
= priv
->mdev
->dev
->numa_node
;
1495 if (!zalloc_cpumask_var(&ring
->affinity_mask
, GFP_KERNEL
))
1498 cpumask_set_cpu(cpumask_local_spread(ring_idx
, numa_node
),
1499 ring
->affinity_mask
);
1503 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv
*priv
, int ring_idx
)
1505 free_cpumask_var(priv
->rx_ring
[ring_idx
]->affinity_mask
);
1508 int mlx4_en_start_port(struct net_device
*dev
)
1510 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1511 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1512 struct mlx4_en_cq
*cq
;
1513 struct mlx4_en_tx_ring
*tx_ring
;
1519 u8 mc_list
[16] = {0};
1521 if (priv
->port_up
) {
1522 en_dbg(DRV
, priv
, "start port called while port already up\n");
1526 INIT_LIST_HEAD(&priv
->mc_list
);
1527 INIT_LIST_HEAD(&priv
->curr_list
);
1528 INIT_LIST_HEAD(&priv
->ethtool_list
);
1529 memset(&priv
->ethtool_rules
[0], 0,
1530 sizeof(struct ethtool_flow_id
) * MAX_NUM_OF_FS_RULES
);
1532 /* Calculate Rx buf size */
1533 dev
->mtu
= min(dev
->mtu
, priv
->max_mtu
);
1534 mlx4_en_calc_rx_buf(dev
);
1535 en_dbg(DRV
, priv
, "Rx buf size:%d\n", priv
->rx_skb_size
);
1537 /* Configure rx cq's and rings */
1538 err
= mlx4_en_activate_rx_rings(priv
);
1540 en_err(priv
, "Failed to activate RX rings\n");
1543 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1544 cq
= priv
->rx_cq
[i
];
1546 err
= mlx4_en_init_affinity_hint(priv
, i
);
1548 en_err(priv
, "Failed preparing IRQ affinity hint\n");
1552 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1554 en_err(priv
, "Failed activating Rx CQ\n");
1555 mlx4_en_free_affinity_hint(priv
, i
);
1559 for (j
= 0; j
< cq
->size
; j
++) {
1560 struct mlx4_cqe
*cqe
= NULL
;
1562 cqe
= mlx4_en_get_cqe(cq
->buf
, j
, priv
->cqe_size
) +
1564 cqe
->owner_sr_opcode
= MLX4_CQE_OWNER_MASK
;
1567 err
= mlx4_en_set_cq_moder(priv
, cq
);
1569 en_err(priv
, "Failed setting cq moderation parameters\n");
1570 mlx4_en_deactivate_cq(priv
, cq
);
1571 mlx4_en_free_affinity_hint(priv
, i
);
1574 mlx4_en_arm_cq(priv
, cq
);
1575 priv
->rx_ring
[i
]->cqn
= cq
->mcq
.cqn
;
1580 en_dbg(DRV
, priv
, "Getting qp number for port %d\n", priv
->port
);
1581 err
= mlx4_en_get_qp(priv
);
1583 en_err(priv
, "Failed getting eth qp\n");
1586 mdev
->mac_removed
[priv
->port
] = 0;
1588 priv
->counter_index
=
1589 mlx4_get_default_counter_index(mdev
->dev
, priv
->port
);
1591 err
= mlx4_en_config_rss_steer(priv
);
1593 en_err(priv
, "Failed configuring rss steering\n");
1597 err
= mlx4_en_create_drop_qp(priv
);
1601 /* Configure tx cq's and rings */
1602 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1604 cq
= priv
->tx_cq
[i
];
1605 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1607 en_err(priv
, "Failed allocating Tx CQ\n");
1610 err
= mlx4_en_set_cq_moder(priv
, cq
);
1612 en_err(priv
, "Failed setting cq moderation parameters\n");
1613 mlx4_en_deactivate_cq(priv
, cq
);
1616 en_dbg(DRV
, priv
, "Resetting index of collapsed CQ:%d to -1\n", i
);
1617 cq
->buf
->wqe_index
= cpu_to_be16(0xffff);
1619 /* Configure ring */
1620 tx_ring
= priv
->tx_ring
[i
];
1621 err
= mlx4_en_activate_tx_ring(priv
, tx_ring
, cq
->mcq
.cqn
,
1622 i
/ priv
->num_tx_rings_p_up
);
1624 en_err(priv
, "Failed allocating Tx ring\n");
1625 mlx4_en_deactivate_cq(priv
, cq
);
1628 tx_ring
->tx_queue
= netdev_get_tx_queue(dev
, i
);
1630 /* Arm CQ for TX completions */
1631 mlx4_en_arm_cq(priv
, cq
);
1633 /* Set initial ownership of all Tx TXBBs to SW (1) */
1634 for (j
= 0; j
< tx_ring
->buf_size
; j
+= STAMP_STRIDE
)
1635 *((u32
*) (tx_ring
->buf
+ j
)) = 0xffffffff;
1639 /* Configure port */
1640 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
1641 priv
->rx_skb_size
+ ETH_FCS_LEN
,
1642 priv
->prof
->tx_pause
,
1644 priv
->prof
->rx_pause
,
1645 priv
->prof
->rx_ppp
);
1647 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
1651 /* Set default qp number */
1652 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
, priv
->port
, priv
->base_qpn
, 0);
1654 en_err(priv
, "Failed setting default qp numbers\n");
1658 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
1659 err
= mlx4_SET_PORT_VXLAN(mdev
->dev
, priv
->port
, VXLAN_STEER_BY_OUTER_MAC
, 1);
1661 en_err(priv
, "Failed setting port L2 tunnel configuration, err %d\n",
1668 en_dbg(HW
, priv
, "Initializing port\n");
1669 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
1671 en_err(priv
, "Failed Initializing port\n");
1675 /* Set Unicast and VXLAN steering rules */
1676 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
&&
1677 mlx4_en_set_rss_steer_rules(priv
))
1678 mlx4_warn(mdev
, "Failed setting steering rules\n");
1680 /* Attach rx QP to bradcast address */
1681 eth_broadcast_addr(&mc_list
[10]);
1682 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1683 if (mlx4_multicast_attach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1684 priv
->port
, 0, MLX4_PROT_ETH
,
1685 &priv
->broadcast_id
))
1686 mlx4_warn(mdev
, "Failed Attaching Broadcast\n");
1688 /* Must redo promiscuous mode setup. */
1689 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
| MLX4_EN_FLAG_MC_PROMISC
);
1691 /* Schedule multicast task to populate multicast list */
1692 queue_work(mdev
->workqueue
, &priv
->rx_mode_task
);
1694 #ifdef CONFIG_MLX4_EN_VXLAN
1695 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
1696 vxlan_get_rx_port(dev
);
1698 priv
->port_up
= true;
1699 netif_tx_start_all_queues(dev
);
1700 netif_device_attach(dev
);
1705 while (tx_index
--) {
1706 mlx4_en_deactivate_tx_ring(priv
, priv
->tx_ring
[tx_index
]);
1707 mlx4_en_deactivate_cq(priv
, priv
->tx_cq
[tx_index
]);
1709 mlx4_en_destroy_drop_qp(priv
);
1711 mlx4_en_release_rss_steer(priv
);
1713 mlx4_en_put_qp(priv
);
1715 while (rx_index
--) {
1716 mlx4_en_deactivate_cq(priv
, priv
->rx_cq
[rx_index
]);
1717 mlx4_en_free_affinity_hint(priv
, rx_index
);
1719 for (i
= 0; i
< priv
->rx_ring_num
; i
++)
1720 mlx4_en_deactivate_rx_ring(priv
, priv
->rx_ring
[i
]);
1722 return err
; /* need to close devices */
1726 void mlx4_en_stop_port(struct net_device
*dev
, int detach
)
1728 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1729 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1730 struct mlx4_en_mc_list
*mclist
, *tmp
;
1731 struct ethtool_flow_id
*flow
, *tmp_flow
;
1733 u8 mc_list
[16] = {0};
1735 if (!priv
->port_up
) {
1736 en_dbg(DRV
, priv
, "stop port called while port already down\n");
1741 mlx4_CLOSE_PORT(mdev
->dev
, priv
->port
);
1743 /* Synchronize with tx routine */
1744 netif_tx_lock_bh(dev
);
1746 netif_device_detach(dev
);
1747 netif_tx_stop_all_queues(dev
);
1748 netif_tx_unlock_bh(dev
);
1750 netif_tx_disable(dev
);
1752 /* Set port as not active */
1753 priv
->port_up
= false;
1754 priv
->counter_index
= MLX4_SINK_COUNTER_INDEX(mdev
->dev
);
1756 /* Promsicuous mode */
1757 if (mdev
->dev
->caps
.steering_mode
==
1758 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1759 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
|
1760 MLX4_EN_FLAG_MC_PROMISC
);
1761 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1763 MLX4_FS_ALL_DEFAULT
);
1764 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1766 MLX4_FS_MC_DEFAULT
);
1767 } else if (priv
->flags
& MLX4_EN_FLAG_PROMISC
) {
1768 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
1770 /* Disable promiscouos mode */
1771 mlx4_unicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1774 /* Disable Multicast promisc */
1775 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
1776 mlx4_multicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1778 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
1782 /* Detach All multicasts */
1783 eth_broadcast_addr(&mc_list
[10]);
1784 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1785 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1786 MLX4_PROT_ETH
, priv
->broadcast_id
);
1787 list_for_each_entry(mclist
, &priv
->curr_list
, list
) {
1788 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1789 mc_list
[5] = priv
->port
;
1790 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
,
1791 mc_list
, MLX4_PROT_ETH
, mclist
->reg_id
);
1792 if (mclist
->tunnel_reg_id
)
1793 mlx4_flow_detach(mdev
->dev
, mclist
->tunnel_reg_id
);
1795 mlx4_en_clear_list(dev
);
1796 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
1797 list_del(&mclist
->list
);
1801 /* Flush multicast filter */
1802 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0, 1, MLX4_MCAST_CONFIG
);
1804 /* Remove flow steering rules for the port*/
1805 if (mdev
->dev
->caps
.steering_mode
==
1806 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1808 list_for_each_entry_safe(flow
, tmp_flow
,
1809 &priv
->ethtool_list
, list
) {
1810 mlx4_flow_detach(mdev
->dev
, flow
->id
);
1811 list_del(&flow
->list
);
1815 mlx4_en_destroy_drop_qp(priv
);
1818 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1819 mlx4_en_deactivate_tx_ring(priv
, priv
->tx_ring
[i
]);
1820 mlx4_en_deactivate_cq(priv
, priv
->tx_cq
[i
]);
1824 for (i
= 0; i
< priv
->tx_ring_num
; i
++)
1825 mlx4_en_free_tx_buf(dev
, priv
->tx_ring
[i
]);
1827 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
1828 mlx4_en_delete_rss_steer_rules(priv
);
1831 mlx4_en_release_rss_steer(priv
);
1833 /* Unregister Mac address for the port */
1834 mlx4_en_put_qp(priv
);
1835 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN
))
1836 mdev
->mac_removed
[priv
->port
] = 1;
1839 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1840 struct mlx4_en_cq
*cq
= priv
->rx_cq
[i
];
1842 napi_synchronize(&cq
->napi
);
1843 mlx4_en_deactivate_rx_ring(priv
, priv
->rx_ring
[i
]);
1844 mlx4_en_deactivate_cq(priv
, cq
);
1846 mlx4_en_free_affinity_hint(priv
, i
);
1850 static void mlx4_en_restart(struct work_struct
*work
)
1852 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1854 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1855 struct net_device
*dev
= priv
->dev
;
1857 en_dbg(DRV
, priv
, "Watchdog task called for port %d\n", priv
->port
);
1859 mutex_lock(&mdev
->state_lock
);
1860 if (priv
->port_up
) {
1861 mlx4_en_stop_port(dev
, 1);
1862 if (mlx4_en_start_port(dev
))
1863 en_err(priv
, "Failed restarting port %d\n", priv
->port
);
1865 mutex_unlock(&mdev
->state_lock
);
1868 static void mlx4_en_clear_stats(struct net_device
*dev
)
1870 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1871 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1874 if (mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 1))
1875 en_dbg(HW
, priv
, "Failed dumping statistics\n");
1877 memset(&priv
->stats
, 0, sizeof(priv
->stats
));
1878 memset(&priv
->pstats
, 0, sizeof(priv
->pstats
));
1879 memset(&priv
->pkstats
, 0, sizeof(priv
->pkstats
));
1880 memset(&priv
->port_stats
, 0, sizeof(priv
->port_stats
));
1881 memset(&priv
->rx_flowstats
, 0, sizeof(priv
->rx_flowstats
));
1882 memset(&priv
->tx_flowstats
, 0, sizeof(priv
->tx_flowstats
));
1883 memset(&priv
->rx_priority_flowstats
, 0,
1884 sizeof(priv
->rx_priority_flowstats
));
1885 memset(&priv
->tx_priority_flowstats
, 0,
1886 sizeof(priv
->tx_priority_flowstats
));
1887 memset(&priv
->pf_stats
, 0, sizeof(priv
->pf_stats
));
1889 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1890 priv
->tx_ring
[i
]->bytes
= 0;
1891 priv
->tx_ring
[i
]->packets
= 0;
1892 priv
->tx_ring
[i
]->tx_csum
= 0;
1894 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1895 priv
->rx_ring
[i
]->bytes
= 0;
1896 priv
->rx_ring
[i
]->packets
= 0;
1897 priv
->rx_ring
[i
]->csum_ok
= 0;
1898 priv
->rx_ring
[i
]->csum_none
= 0;
1899 priv
->rx_ring
[i
]->csum_complete
= 0;
1903 static int mlx4_en_open(struct net_device
*dev
)
1905 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1906 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1909 mutex_lock(&mdev
->state_lock
);
1911 if (!mdev
->device_up
) {
1912 en_err(priv
, "Cannot open - device down/disabled\n");
1917 /* Reset HW statistics and SW counters */
1918 mlx4_en_clear_stats(dev
);
1920 err
= mlx4_en_start_port(dev
);
1922 en_err(priv
, "Failed starting port:%d\n", priv
->port
);
1925 mutex_unlock(&mdev
->state_lock
);
1930 static int mlx4_en_close(struct net_device
*dev
)
1932 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1933 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1935 en_dbg(IFDOWN
, priv
, "Close port called\n");
1937 mutex_lock(&mdev
->state_lock
);
1939 mlx4_en_stop_port(dev
, 0);
1940 netif_carrier_off(dev
);
1942 mutex_unlock(&mdev
->state_lock
);
1946 void mlx4_en_free_resources(struct mlx4_en_priv
*priv
)
1950 #ifdef CONFIG_RFS_ACCEL
1951 priv
->dev
->rx_cpu_rmap
= NULL
;
1954 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1955 if (priv
->tx_ring
&& priv
->tx_ring
[i
])
1956 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
1957 if (priv
->tx_cq
&& priv
->tx_cq
[i
])
1958 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
1961 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1962 if (priv
->rx_ring
[i
])
1963 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
1964 priv
->prof
->rx_ring_size
, priv
->stride
);
1966 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
1971 int mlx4_en_alloc_resources(struct mlx4_en_priv
*priv
)
1973 struct mlx4_en_port_profile
*prof
= priv
->prof
;
1977 /* Create tx Rings */
1978 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1979 node
= cpu_to_node(i
% num_online_cpus());
1980 if (mlx4_en_create_cq(priv
, &priv
->tx_cq
[i
],
1981 prof
->tx_ring_size
, i
, TX
, node
))
1984 if (mlx4_en_create_tx_ring(priv
, &priv
->tx_ring
[i
],
1985 prof
->tx_ring_size
, TXBB_SIZE
,
1990 /* Create rx Rings */
1991 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1992 node
= cpu_to_node(i
% num_online_cpus());
1993 if (mlx4_en_create_cq(priv
, &priv
->rx_cq
[i
],
1994 prof
->rx_ring_size
, i
, RX
, node
))
1997 if (mlx4_en_create_rx_ring(priv
, &priv
->rx_ring
[i
],
1998 prof
->rx_ring_size
, priv
->stride
,
2003 #ifdef CONFIG_RFS_ACCEL
2004 priv
->dev
->rx_cpu_rmap
= mlx4_get_cpu_rmap(priv
->mdev
->dev
, priv
->port
);
2010 en_err(priv
, "Failed to allocate NIC resources\n");
2011 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2012 if (priv
->rx_ring
[i
])
2013 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
2017 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
2019 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
2020 if (priv
->tx_ring
[i
])
2021 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
2023 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
2029 void mlx4_en_destroy_netdev(struct net_device
*dev
)
2031 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2032 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2034 en_dbg(DRV
, priv
, "Destroying netdev on port:%d\n", priv
->port
);
2036 /* Unregister device - this will close the port if it was up */
2037 if (priv
->registered
) {
2038 devlink_port_type_clear(mlx4_get_devlink_port(mdev
->dev
,
2040 unregister_netdev(dev
);
2043 if (priv
->allocated
)
2044 mlx4_free_hwq_res(mdev
->dev
, &priv
->res
, MLX4_EN_PAGE_SIZE
);
2046 cancel_delayed_work(&priv
->stats_task
);
2047 cancel_delayed_work(&priv
->service_task
);
2048 /* flush any pending task for this netdev */
2049 flush_workqueue(mdev
->workqueue
);
2051 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
2052 mlx4_en_remove_timestamp(mdev
);
2054 /* Detach the netdev so tasks would not attempt to access it */
2055 mutex_lock(&mdev
->state_lock
);
2056 mdev
->pndev
[priv
->port
] = NULL
;
2057 mdev
->upper
[priv
->port
] = NULL
;
2058 mutex_unlock(&mdev
->state_lock
);
2060 mlx4_en_free_resources(priv
);
2062 kfree(priv
->tx_ring
);
2068 static int mlx4_en_change_mtu(struct net_device
*dev
, int new_mtu
)
2070 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2071 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2074 en_dbg(DRV
, priv
, "Change MTU called - current:%d new:%d\n",
2077 if ((new_mtu
< MLX4_EN_MIN_MTU
) || (new_mtu
> priv
->max_mtu
)) {
2078 en_err(priv
, "Bad MTU size:%d.\n", new_mtu
);
2083 if (netif_running(dev
)) {
2084 mutex_lock(&mdev
->state_lock
);
2085 if (!mdev
->device_up
) {
2086 /* NIC is probably restarting - let watchdog task reset
2088 en_dbg(DRV
, priv
, "Change MTU called with card down!?\n");
2090 mlx4_en_stop_port(dev
, 1);
2091 err
= mlx4_en_start_port(dev
);
2093 en_err(priv
, "Failed restarting port:%d\n",
2095 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
2098 mutex_unlock(&mdev
->state_lock
);
2103 static int mlx4_en_hwtstamp_set(struct net_device
*dev
, struct ifreq
*ifr
)
2105 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2106 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2107 struct hwtstamp_config config
;
2109 if (copy_from_user(&config
, ifr
->ifr_data
, sizeof(config
)))
2112 /* reserved for future extensions */
2116 /* device doesn't support time stamping */
2117 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
))
2120 /* TX HW timestamp */
2121 switch (config
.tx_type
) {
2122 case HWTSTAMP_TX_OFF
:
2123 case HWTSTAMP_TX_ON
:
2129 /* RX HW timestamp */
2130 switch (config
.rx_filter
) {
2131 case HWTSTAMP_FILTER_NONE
:
2133 case HWTSTAMP_FILTER_ALL
:
2134 case HWTSTAMP_FILTER_SOME
:
2135 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT
:
2136 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC
:
2137 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ
:
2138 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT
:
2139 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC
:
2140 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ
:
2141 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT
:
2142 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC
:
2143 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ
:
2144 case HWTSTAMP_FILTER_PTP_V2_EVENT
:
2145 case HWTSTAMP_FILTER_PTP_V2_SYNC
:
2146 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
:
2147 config
.rx_filter
= HWTSTAMP_FILTER_ALL
;
2153 if (mlx4_en_reset_config(dev
, config
, dev
->features
)) {
2154 config
.tx_type
= HWTSTAMP_TX_OFF
;
2155 config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2158 return copy_to_user(ifr
->ifr_data
, &config
,
2159 sizeof(config
)) ? -EFAULT
: 0;
2162 static int mlx4_en_hwtstamp_get(struct net_device
*dev
, struct ifreq
*ifr
)
2164 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2166 return copy_to_user(ifr
->ifr_data
, &priv
->hwtstamp_config
,
2167 sizeof(priv
->hwtstamp_config
)) ? -EFAULT
: 0;
2170 static int mlx4_en_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2174 return mlx4_en_hwtstamp_set(dev
, ifr
);
2176 return mlx4_en_hwtstamp_get(dev
, ifr
);
2182 static netdev_features_t
mlx4_en_fix_features(struct net_device
*netdev
,
2183 netdev_features_t features
)
2185 struct mlx4_en_priv
*en_priv
= netdev_priv(netdev
);
2186 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2188 /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
2189 * enable/disable make sure S-TAG flag is always in same state as
2192 if (features
& NETIF_F_HW_VLAN_CTAG_RX
&&
2193 !(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
))
2194 features
|= NETIF_F_HW_VLAN_STAG_RX
;
2196 features
&= ~NETIF_F_HW_VLAN_STAG_RX
;
2201 static int mlx4_en_set_features(struct net_device
*netdev
,
2202 netdev_features_t features
)
2204 struct mlx4_en_priv
*priv
= netdev_priv(netdev
);
2208 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_RXFCS
)) {
2209 en_info(priv
, "Turn %s RX-FCS\n",
2210 (features
& NETIF_F_RXFCS
) ? "ON" : "OFF");
2214 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_RXALL
)) {
2215 u8 ignore_fcs_value
= (features
& NETIF_F_RXALL
) ? 1 : 0;
2217 en_info(priv
, "Turn %s RX-ALL\n",
2218 ignore_fcs_value
? "ON" : "OFF");
2219 ret
= mlx4_SET_PORT_fcs_check(priv
->mdev
->dev
,
2220 priv
->port
, ignore_fcs_value
);
2225 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_CTAG_RX
)) {
2226 en_info(priv
, "Turn %s RX vlan strip offload\n",
2227 (features
& NETIF_F_HW_VLAN_CTAG_RX
) ? "ON" : "OFF");
2231 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_CTAG_TX
))
2232 en_info(priv
, "Turn %s TX vlan strip offload\n",
2233 (features
& NETIF_F_HW_VLAN_CTAG_TX
) ? "ON" : "OFF");
2235 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_STAG_TX
))
2236 en_info(priv
, "Turn %s TX S-VLAN strip offload\n",
2237 (features
& NETIF_F_HW_VLAN_STAG_TX
) ? "ON" : "OFF");
2239 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_LOOPBACK
)) {
2240 en_info(priv
, "Turn %s loopback\n",
2241 (features
& NETIF_F_LOOPBACK
) ? "ON" : "OFF");
2242 mlx4_en_update_loopback_state(netdev
, features
);
2246 ret
= mlx4_en_reset_config(netdev
, priv
->hwtstamp_config
,
2255 static int mlx4_en_set_vf_mac(struct net_device
*dev
, int queue
, u8
*mac
)
2257 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2258 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2259 u64 mac_u64
= mlx4_mac_to_u64(mac
);
2261 if (is_multicast_ether_addr(mac
))
2264 return mlx4_set_vf_mac(mdev
->dev
, en_priv
->port
, queue
, mac_u64
);
2267 static int mlx4_en_set_vf_vlan(struct net_device
*dev
, int vf
, u16 vlan
, u8 qos
)
2269 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2270 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2272 return mlx4_set_vf_vlan(mdev
->dev
, en_priv
->port
, vf
, vlan
, qos
);
2275 static int mlx4_en_set_vf_rate(struct net_device
*dev
, int vf
, int min_tx_rate
,
2278 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2279 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2281 return mlx4_set_vf_rate(mdev
->dev
, en_priv
->port
, vf
, min_tx_rate
,
2285 static int mlx4_en_set_vf_spoofchk(struct net_device
*dev
, int vf
, bool setting
)
2287 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2288 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2290 return mlx4_set_vf_spoofchk(mdev
->dev
, en_priv
->port
, vf
, setting
);
2293 static int mlx4_en_get_vf_config(struct net_device
*dev
, int vf
, struct ifla_vf_info
*ivf
)
2295 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2296 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2298 return mlx4_get_vf_config(mdev
->dev
, en_priv
->port
, vf
, ivf
);
2301 static int mlx4_en_set_vf_link_state(struct net_device
*dev
, int vf
, int link_state
)
2303 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2304 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2306 return mlx4_set_vf_link_state(mdev
->dev
, en_priv
->port
, vf
, link_state
);
2309 static int mlx4_en_get_vf_stats(struct net_device
*dev
, int vf
,
2310 struct ifla_vf_stats
*vf_stats
)
2312 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2313 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2315 return mlx4_get_vf_stats(mdev
->dev
, en_priv
->port
, vf
, vf_stats
);
2318 #define PORT_ID_BYTE_LEN 8
2319 static int mlx4_en_get_phys_port_id(struct net_device
*dev
,
2320 struct netdev_phys_item_id
*ppid
)
2322 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2323 struct mlx4_dev
*mdev
= priv
->mdev
->dev
;
2325 u64 phys_port_id
= mdev
->caps
.phys_port_id
[priv
->port
];
2330 ppid
->id_len
= sizeof(phys_port_id
);
2331 for (i
= PORT_ID_BYTE_LEN
- 1; i
>= 0; --i
) {
2332 ppid
->id
[i
] = phys_port_id
& 0xff;
2338 #ifdef CONFIG_MLX4_EN_VXLAN
2339 static void mlx4_en_add_vxlan_offloads(struct work_struct
*work
)
2342 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
2345 ret
= mlx4_config_vxlan_port(priv
->mdev
->dev
, priv
->vxlan_port
);
2349 ret
= mlx4_SET_PORT_VXLAN(priv
->mdev
->dev
, priv
->port
,
2350 VXLAN_STEER_BY_OUTER_MAC
, 1);
2353 en_err(priv
, "failed setting L2 tunnel configuration ret %d\n", ret
);
2358 priv
->dev
->hw_enc_features
|= NETIF_F_IP_CSUM
| NETIF_F_RXCSUM
|
2359 NETIF_F_TSO
| NETIF_F_GSO_UDP_TUNNEL
;
2362 static void mlx4_en_del_vxlan_offloads(struct work_struct
*work
)
2365 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
2367 /* unset offloads */
2368 priv
->dev
->hw_enc_features
&= ~(NETIF_F_IP_CSUM
| NETIF_F_RXCSUM
|
2369 NETIF_F_TSO
| NETIF_F_GSO_UDP_TUNNEL
);
2371 ret
= mlx4_SET_PORT_VXLAN(priv
->mdev
->dev
, priv
->port
,
2372 VXLAN_STEER_BY_OUTER_MAC
, 0);
2374 en_err(priv
, "failed setting L2 tunnel configuration ret %d\n", ret
);
2376 priv
->vxlan_port
= 0;
2379 static void mlx4_en_add_vxlan_port(struct net_device
*dev
,
2380 sa_family_t sa_family
, __be16 port
)
2382 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2383 __be16 current_port
;
2385 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
2388 if (sa_family
== AF_INET6
)
2391 current_port
= priv
->vxlan_port
;
2392 if (current_port
&& current_port
!= port
) {
2393 en_warn(priv
, "vxlan port %d configured, can't add port %d\n",
2394 ntohs(current_port
), ntohs(port
));
2398 priv
->vxlan_port
= port
;
2399 queue_work(priv
->mdev
->workqueue
, &priv
->vxlan_add_task
);
2402 static void mlx4_en_del_vxlan_port(struct net_device
*dev
,
2403 sa_family_t sa_family
, __be16 port
)
2405 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2406 __be16 current_port
;
2408 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
2411 if (sa_family
== AF_INET6
)
2414 current_port
= priv
->vxlan_port
;
2415 if (current_port
!= port
) {
2416 en_dbg(DRV
, priv
, "vxlan port %d isn't configured, ignoring\n", ntohs(port
));
2420 queue_work(priv
->mdev
->workqueue
, &priv
->vxlan_del_task
);
2423 static netdev_features_t
mlx4_en_features_check(struct sk_buff
*skb
,
2424 struct net_device
*dev
,
2425 netdev_features_t features
)
2427 features
= vlan_features_check(skb
, features
);
2428 return vxlan_features_check(skb
, features
);
2432 static int mlx4_en_set_tx_maxrate(struct net_device
*dev
, int queue_index
, u32 maxrate
)
2434 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2435 struct mlx4_en_tx_ring
*tx_ring
= priv
->tx_ring
[queue_index
];
2436 struct mlx4_update_qp_params params
;
2439 if (!(priv
->mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT
))
2442 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2443 if (maxrate
>> 12) {
2444 params
.rate_unit
= MLX4_QP_RATE_LIMIT_GBS
;
2445 params
.rate_val
= maxrate
/ 1000;
2446 } else if (maxrate
) {
2447 params
.rate_unit
= MLX4_QP_RATE_LIMIT_MBS
;
2448 params
.rate_val
= maxrate
;
2449 } else { /* zero serves to revoke the QP rate-limitation */
2450 params
.rate_unit
= 0;
2451 params
.rate_val
= 0;
2454 err
= mlx4_update_qp(priv
->mdev
->dev
, tx_ring
->qpn
, MLX4_UPDATE_QP_RATE_LIMIT
,
2459 static const struct net_device_ops mlx4_netdev_ops
= {
2460 .ndo_open
= mlx4_en_open
,
2461 .ndo_stop
= mlx4_en_close
,
2462 .ndo_start_xmit
= mlx4_en_xmit
,
2463 .ndo_select_queue
= mlx4_en_select_queue
,
2464 .ndo_get_stats
= mlx4_en_get_stats
,
2465 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2466 .ndo_set_mac_address
= mlx4_en_set_mac
,
2467 .ndo_validate_addr
= eth_validate_addr
,
2468 .ndo_change_mtu
= mlx4_en_change_mtu
,
2469 .ndo_do_ioctl
= mlx4_en_ioctl
,
2470 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2471 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2472 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2473 #ifdef CONFIG_NET_POLL_CONTROLLER
2474 .ndo_poll_controller
= mlx4_en_netpoll
,
2476 .ndo_set_features
= mlx4_en_set_features
,
2477 .ndo_fix_features
= mlx4_en_fix_features
,
2478 .ndo_setup_tc
= __mlx4_en_setup_tc
,
2479 #ifdef CONFIG_RFS_ACCEL
2480 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2482 .ndo_get_phys_port_id
= mlx4_en_get_phys_port_id
,
2483 #ifdef CONFIG_MLX4_EN_VXLAN
2484 .ndo_add_vxlan_port
= mlx4_en_add_vxlan_port
,
2485 .ndo_del_vxlan_port
= mlx4_en_del_vxlan_port
,
2486 .ndo_features_check
= mlx4_en_features_check
,
2488 .ndo_set_tx_maxrate
= mlx4_en_set_tx_maxrate
,
2491 static const struct net_device_ops mlx4_netdev_ops_master
= {
2492 .ndo_open
= mlx4_en_open
,
2493 .ndo_stop
= mlx4_en_close
,
2494 .ndo_start_xmit
= mlx4_en_xmit
,
2495 .ndo_select_queue
= mlx4_en_select_queue
,
2496 .ndo_get_stats
= mlx4_en_get_stats
,
2497 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2498 .ndo_set_mac_address
= mlx4_en_set_mac
,
2499 .ndo_validate_addr
= eth_validate_addr
,
2500 .ndo_change_mtu
= mlx4_en_change_mtu
,
2501 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2502 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2503 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2504 .ndo_set_vf_mac
= mlx4_en_set_vf_mac
,
2505 .ndo_set_vf_vlan
= mlx4_en_set_vf_vlan
,
2506 .ndo_set_vf_rate
= mlx4_en_set_vf_rate
,
2507 .ndo_set_vf_spoofchk
= mlx4_en_set_vf_spoofchk
,
2508 .ndo_set_vf_link_state
= mlx4_en_set_vf_link_state
,
2509 .ndo_get_vf_stats
= mlx4_en_get_vf_stats
,
2510 .ndo_get_vf_config
= mlx4_en_get_vf_config
,
2511 #ifdef CONFIG_NET_POLL_CONTROLLER
2512 .ndo_poll_controller
= mlx4_en_netpoll
,
2514 .ndo_set_features
= mlx4_en_set_features
,
2515 .ndo_fix_features
= mlx4_en_fix_features
,
2516 .ndo_setup_tc
= __mlx4_en_setup_tc
,
2517 #ifdef CONFIG_RFS_ACCEL
2518 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2520 .ndo_get_phys_port_id
= mlx4_en_get_phys_port_id
,
2521 #ifdef CONFIG_MLX4_EN_VXLAN
2522 .ndo_add_vxlan_port
= mlx4_en_add_vxlan_port
,
2523 .ndo_del_vxlan_port
= mlx4_en_del_vxlan_port
,
2524 .ndo_features_check
= mlx4_en_features_check
,
2526 .ndo_set_tx_maxrate
= mlx4_en_set_tx_maxrate
,
2529 struct mlx4_en_bond
{
2530 struct work_struct work
;
2531 struct mlx4_en_priv
*priv
;
2533 struct mlx4_port_map port_map
;
2536 static void mlx4_en_bond_work(struct work_struct
*work
)
2538 struct mlx4_en_bond
*bond
= container_of(work
,
2539 struct mlx4_en_bond
,
2542 struct mlx4_dev
*dev
= bond
->priv
->mdev
->dev
;
2544 if (bond
->is_bonded
) {
2545 if (!mlx4_is_bonded(dev
)) {
2546 err
= mlx4_bond(dev
);
2548 en_err(bond
->priv
, "Fail to bond device\n");
2551 err
= mlx4_port_map_set(dev
, &bond
->port_map
);
2553 en_err(bond
->priv
, "Fail to set port map [%d][%d]: %d\n",
2554 bond
->port_map
.port1
,
2555 bond
->port_map
.port2
,
2558 } else if (mlx4_is_bonded(dev
)) {
2559 err
= mlx4_unbond(dev
);
2561 en_err(bond
->priv
, "Fail to unbond device\n");
2563 dev_put(bond
->priv
->dev
);
2567 static int mlx4_en_queue_bond_work(struct mlx4_en_priv
*priv
, int is_bonded
,
2568 u8 v2p_p1
, u8 v2p_p2
)
2570 struct mlx4_en_bond
*bond
= NULL
;
2572 bond
= kzalloc(sizeof(*bond
), GFP_ATOMIC
);
2576 INIT_WORK(&bond
->work
, mlx4_en_bond_work
);
2578 bond
->is_bonded
= is_bonded
;
2579 bond
->port_map
.port1
= v2p_p1
;
2580 bond
->port_map
.port2
= v2p_p2
;
2581 dev_hold(priv
->dev
);
2582 queue_work(priv
->mdev
->workqueue
, &bond
->work
);
2586 int mlx4_en_netdev_event(struct notifier_block
*this,
2587 unsigned long event
, void *ptr
)
2589 struct net_device
*ndev
= netdev_notifier_info_to_dev(ptr
);
2591 struct mlx4_en_dev
*mdev
;
2592 struct mlx4_dev
*dev
;
2593 int i
, num_eth_ports
= 0;
2594 bool do_bond
= true;
2595 struct mlx4_en_priv
*priv
;
2599 if (!net_eq(dev_net(ndev
), &init_net
))
2602 mdev
= container_of(this, struct mlx4_en_dev
, nb
);
2605 /* Go into this mode only when two network devices set on two ports
2606 * of the same mlx4 device are slaves of the same bonding master
2608 mlx4_foreach_port(i
, dev
, MLX4_PORT_TYPE_ETH
) {
2610 if (!port
&& (mdev
->pndev
[i
] == ndev
))
2612 mdev
->upper
[i
] = mdev
->pndev
[i
] ?
2613 netdev_master_upper_dev_get(mdev
->pndev
[i
]) : NULL
;
2614 /* condition not met: network device is a slave */
2615 if (!mdev
->upper
[i
])
2617 if (num_eth_ports
< 2)
2619 /* condition not met: same master */
2620 if (mdev
->upper
[i
] != mdev
->upper
[i
-1])
2623 /* condition not met: 2 salves */
2624 do_bond
= (num_eth_ports
== 2) ? do_bond
: false;
2626 /* handle only events that come with enough info */
2627 if ((do_bond
&& (event
!= NETDEV_BONDING_INFO
)) || !port
)
2630 priv
= netdev_priv(ndev
);
2632 struct netdev_notifier_bonding_info
*notifier_info
= ptr
;
2633 struct netdev_bonding_info
*bonding_info
=
2634 ¬ifier_info
->bonding_info
;
2636 /* required mode 1, 2 or 4 */
2637 if ((bonding_info
->master
.bond_mode
!= BOND_MODE_ACTIVEBACKUP
) &&
2638 (bonding_info
->master
.bond_mode
!= BOND_MODE_XOR
) &&
2639 (bonding_info
->master
.bond_mode
!= BOND_MODE_8023AD
))
2642 /* require exactly 2 slaves */
2643 if (bonding_info
->master
.num_slaves
!= 2)
2648 if (bonding_info
->master
.bond_mode
==
2649 BOND_MODE_ACTIVEBACKUP
) {
2650 /* in active-backup mode virtual ports are
2651 * mapped to the physical port of the active
2653 if (bonding_info
->slave
.state
==
2654 BOND_STATE_BACKUP
) {
2662 } else { /* BOND_STATE_ACTIVE */
2671 } else { /* Active-Active */
2672 /* in active-active mode a virtual port is
2673 * mapped to the native physical port if and only
2674 * if the physical port is up */
2675 __s8 link
= bonding_info
->slave
.link
;
2681 if ((link
== BOND_LINK_UP
) ||
2682 (link
== BOND_LINK_FAIL
)) {
2687 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
2697 mlx4_en_queue_bond_work(priv
, do_bond
,
2698 v2p_port1
, v2p_port2
);
2703 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev
*dev
,
2704 struct mlx4_en_stats_bitmap
*stats_bitmap
,
2705 u8 rx_ppp
, u8 rx_pause
,
2706 u8 tx_ppp
, u8 tx_pause
)
2708 int last_i
= NUM_MAIN_STATS
+ NUM_PORT_STATS
+ NUM_PF_STATS
;
2710 if (!mlx4_is_slave(dev
) &&
2711 (dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN
)) {
2712 mutex_lock(&stats_bitmap
->mutex
);
2713 bitmap_clear(stats_bitmap
->bitmap
, last_i
, NUM_FLOW_STATS
);
2716 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2717 NUM_FLOW_PRIORITY_STATS_RX
);
2718 last_i
+= NUM_FLOW_PRIORITY_STATS_RX
;
2720 if (rx_pause
&& !(rx_ppp
))
2721 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2723 last_i
+= NUM_FLOW_STATS_RX
;
2726 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2727 NUM_FLOW_PRIORITY_STATS_TX
);
2728 last_i
+= NUM_FLOW_PRIORITY_STATS_TX
;
2730 if (tx_pause
&& !(tx_ppp
))
2731 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2733 last_i
+= NUM_FLOW_STATS_TX
;
2735 mutex_unlock(&stats_bitmap
->mutex
);
2739 void mlx4_en_set_stats_bitmap(struct mlx4_dev
*dev
,
2740 struct mlx4_en_stats_bitmap
*stats_bitmap
,
2741 u8 rx_ppp
, u8 rx_pause
,
2742 u8 tx_ppp
, u8 tx_pause
)
2746 mutex_init(&stats_bitmap
->mutex
);
2747 bitmap_zero(stats_bitmap
->bitmap
, NUM_ALL_STATS
);
2749 if (mlx4_is_slave(dev
)) {
2750 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2751 MLX4_FIND_NETDEV_STAT(rx_packets
), 1);
2752 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2753 MLX4_FIND_NETDEV_STAT(tx_packets
), 1);
2754 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2755 MLX4_FIND_NETDEV_STAT(rx_bytes
), 1);
2756 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2757 MLX4_FIND_NETDEV_STAT(tx_bytes
), 1);
2758 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2759 MLX4_FIND_NETDEV_STAT(rx_dropped
), 1);
2760 bitmap_set(stats_bitmap
->bitmap
, last_i
+
2761 MLX4_FIND_NETDEV_STAT(tx_dropped
), 1);
2763 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_MAIN_STATS
);
2765 last_i
+= NUM_MAIN_STATS
;
2767 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_PORT_STATS
);
2768 last_i
+= NUM_PORT_STATS
;
2770 if (mlx4_is_master(dev
))
2771 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2773 last_i
+= NUM_PF_STATS
;
2775 mlx4_en_update_pfc_stats_bitmap(dev
, stats_bitmap
,
2778 last_i
+= NUM_FLOW_STATS
;
2780 if (!mlx4_is_slave(dev
))
2781 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_PKT_STATS
);
2784 int mlx4_en_init_netdev(struct mlx4_en_dev
*mdev
, int port
,
2785 struct mlx4_en_port_profile
*prof
)
2787 struct net_device
*dev
;
2788 struct mlx4_en_priv
*priv
;
2792 dev
= alloc_etherdev_mqs(sizeof(struct mlx4_en_priv
),
2793 MAX_TX_RINGS
, MAX_RX_RINGS
);
2797 netif_set_real_num_tx_queues(dev
, prof
->tx_ring_num
);
2798 netif_set_real_num_rx_queues(dev
, prof
->rx_ring_num
);
2800 SET_NETDEV_DEV(dev
, &mdev
->dev
->persist
->pdev
->dev
);
2801 dev
->dev_port
= port
- 1;
2804 * Initialize driver private data
2807 priv
= netdev_priv(dev
);
2808 memset(priv
, 0, sizeof(struct mlx4_en_priv
));
2809 priv
->counter_index
= MLX4_SINK_COUNTER_INDEX(mdev
->dev
);
2810 spin_lock_init(&priv
->stats_lock
);
2811 INIT_WORK(&priv
->rx_mode_task
, mlx4_en_do_set_rx_mode
);
2812 INIT_WORK(&priv
->watchdog_task
, mlx4_en_restart
);
2813 INIT_WORK(&priv
->linkstate_task
, mlx4_en_linkstate
);
2814 INIT_DELAYED_WORK(&priv
->stats_task
, mlx4_en_do_get_stats
);
2815 INIT_DELAYED_WORK(&priv
->service_task
, mlx4_en_service_task
);
2816 #ifdef CONFIG_MLX4_EN_VXLAN
2817 INIT_WORK(&priv
->vxlan_add_task
, mlx4_en_add_vxlan_offloads
);
2818 INIT_WORK(&priv
->vxlan_del_task
, mlx4_en_del_vxlan_offloads
);
2820 #ifdef CONFIG_RFS_ACCEL
2821 INIT_LIST_HEAD(&priv
->filters
);
2822 spin_lock_init(&priv
->filters_lock
);
2827 priv
->ddev
= &mdev
->pdev
->dev
;
2830 priv
->port_up
= false;
2831 priv
->flags
= prof
->flags
;
2832 priv
->pflags
= MLX4_EN_PRIV_FLAGS_BLUEFLAME
;
2833 priv
->ctrl_flags
= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE
|
2834 MLX4_WQE_CTRL_SOLICITED
);
2835 priv
->num_tx_rings_p_up
= mdev
->profile
.num_tx_rings_p_up
;
2836 priv
->tx_ring_num
= prof
->tx_ring_num
;
2837 priv
->tx_work_limit
= MLX4_EN_DEFAULT_TX_WORK
;
2838 netdev_rss_key_fill(priv
->rss_key
, sizeof(priv
->rss_key
));
2840 priv
->tx_ring
= kzalloc(sizeof(struct mlx4_en_tx_ring
*) * MAX_TX_RINGS
,
2842 if (!priv
->tx_ring
) {
2846 priv
->tx_cq
= kzalloc(sizeof(struct mlx4_en_cq
*) * MAX_TX_RINGS
,
2852 priv
->rx_ring_num
= prof
->rx_ring_num
;
2853 priv
->cqe_factor
= (mdev
->dev
->caps
.cqe_size
== 64) ? 1 : 0;
2854 priv
->cqe_size
= mdev
->dev
->caps
.cqe_size
;
2855 priv
->mac_index
= -1;
2856 priv
->msg_enable
= MLX4_EN_MSG_LEVEL
;
2857 #ifdef CONFIG_MLX4_EN_DCB
2858 if (!mlx4_is_slave(priv
->mdev
->dev
)) {
2859 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_ETS_CFG
) {
2860 dev
->dcbnl_ops
= &mlx4_en_dcbnl_ops
;
2862 en_info(priv
, "enabling only PFC DCB ops\n");
2863 dev
->dcbnl_ops
= &mlx4_en_dcbnl_pfc_ops
;
2868 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
)
2869 INIT_HLIST_HEAD(&priv
->mac_hash
[i
]);
2871 /* Query for default mac and max mtu */
2872 priv
->max_mtu
= mdev
->dev
->caps
.eth_mtu_cap
[priv
->port
];
2874 if (mdev
->dev
->caps
.rx_checksum_flags_port
[priv
->port
] &
2875 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP
)
2876 priv
->flags
|= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP
;
2878 /* Set default MAC */
2879 dev
->addr_len
= ETH_ALEN
;
2880 mlx4_en_u64_to_mac(dev
->dev_addr
, mdev
->dev
->caps
.def_mac
[priv
->port
]);
2881 if (!is_valid_ether_addr(dev
->dev_addr
)) {
2882 en_err(priv
, "Port: %d, invalid mac burned: %pM, quiting\n",
2883 priv
->port
, dev
->dev_addr
);
2886 } else if (mlx4_is_slave(priv
->mdev
->dev
) &&
2887 (priv
->mdev
->dev
->port_random_macs
& 1 << priv
->port
)) {
2888 /* Random MAC was assigned in mlx4_slave_cap
2889 * in mlx4_core module
2891 dev
->addr_assign_type
|= NET_ADDR_RANDOM
;
2892 en_warn(priv
, "Assigned random MAC address %pM\n", dev
->dev_addr
);
2895 memcpy(priv
->current_mac
, dev
->dev_addr
, sizeof(priv
->current_mac
));
2897 priv
->stride
= roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc
) +
2898 DS_SIZE
* MLX4_EN_MAX_RX_FRAGS
);
2899 err
= mlx4_en_alloc_resources(priv
);
2903 /* Initialize time stamping config */
2904 priv
->hwtstamp_config
.flags
= 0;
2905 priv
->hwtstamp_config
.tx_type
= HWTSTAMP_TX_OFF
;
2906 priv
->hwtstamp_config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2908 /* Allocate page for receive rings */
2909 err
= mlx4_alloc_hwq_res(mdev
->dev
, &priv
->res
,
2910 MLX4_EN_PAGE_SIZE
, MLX4_EN_PAGE_SIZE
);
2912 en_err(priv
, "Failed to allocate page for rx qps\n");
2915 priv
->allocated
= 1;
2918 * Initialize netdev entry points
2920 if (mlx4_is_master(priv
->mdev
->dev
))
2921 dev
->netdev_ops
= &mlx4_netdev_ops_master
;
2923 dev
->netdev_ops
= &mlx4_netdev_ops
;
2924 dev
->watchdog_timeo
= MLX4_EN_WATCHDOG_TIMEOUT
;
2925 netif_set_real_num_tx_queues(dev
, priv
->tx_ring_num
);
2926 netif_set_real_num_rx_queues(dev
, priv
->rx_ring_num
);
2928 dev
->ethtool_ops
= &mlx4_en_ethtool_ops
;
2931 * Set driver features
2933 dev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
2934 if (mdev
->LSO_support
)
2935 dev
->hw_features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
2937 dev
->vlan_features
= dev
->hw_features
;
2939 dev
->hw_features
|= NETIF_F_RXCSUM
| NETIF_F_RXHASH
;
2940 dev
->features
= dev
->hw_features
| NETIF_F_HIGHDMA
|
2941 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
|
2942 NETIF_F_HW_VLAN_CTAG_FILTER
;
2943 dev
->hw_features
|= NETIF_F_LOOPBACK
|
2944 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
;
2946 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
)) {
2947 dev
->features
|= NETIF_F_HW_VLAN_STAG_RX
|
2948 NETIF_F_HW_VLAN_STAG_FILTER
;
2949 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_RX
;
2952 if (mlx4_is_slave(mdev
->dev
)) {
2955 err
= get_phv_bit(mdev
->dev
, port
, &phv
);
2957 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_TX
;
2958 priv
->pflags
|= MLX4_EN_PRIV_FLAGS_PHV
;
2961 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_PHV_EN
&&
2962 !(mdev
->dev
->caps
.flags2
&
2963 MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
))
2964 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_TX
;
2967 if (mdev
->dev
->caps
.flags
& MLX4_DEV_CAP_FLAG_FCS_KEEP
)
2968 dev
->hw_features
|= NETIF_F_RXFCS
;
2970 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_IGNORE_FCS
)
2971 dev
->hw_features
|= NETIF_F_RXALL
;
2973 if (mdev
->dev
->caps
.steering_mode
==
2974 MLX4_STEERING_MODE_DEVICE_MANAGED
&&
2975 mdev
->dev
->caps
.dmfs_high_steer_mode
!= MLX4_STEERING_DMFS_A0_STATIC
)
2976 dev
->hw_features
|= NETIF_F_NTUPLE
;
2978 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
2979 dev
->priv_flags
|= IFF_UNICAST_FLT
;
2981 /* Setting a default hash function value */
2982 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_RSS_TOP
) {
2983 priv
->rss_hash_fn
= ETH_RSS_HASH_TOP
;
2984 } else if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_RSS_XOR
) {
2985 priv
->rss_hash_fn
= ETH_RSS_HASH_XOR
;
2988 "No RSS hash capabilities exposed, using Toeplitz\n");
2989 priv
->rss_hash_fn
= ETH_RSS_HASH_TOP
;
2992 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
2993 dev
->hw_features
|= NETIF_F_GSO_UDP_TUNNEL
;
2994 dev
->features
|= NETIF_F_GSO_UDP_TUNNEL
;
2997 mdev
->pndev
[port
] = dev
;
2998 mdev
->upper
[port
] = NULL
;
3000 netif_carrier_off(dev
);
3001 mlx4_en_set_default_moderation(priv
);
3003 en_warn(priv
, "Using %d TX rings\n", prof
->tx_ring_num
);
3004 en_warn(priv
, "Using %d RX rings\n", prof
->rx_ring_num
);
3006 mlx4_en_update_loopback_state(priv
->dev
, priv
->dev
->features
);
3008 /* Configure port */
3009 mlx4_en_calc_rx_buf(dev
);
3010 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
3011 priv
->rx_skb_size
+ ETH_FCS_LEN
,
3012 prof
->tx_pause
, prof
->tx_ppp
,
3013 prof
->rx_pause
, prof
->rx_ppp
);
3015 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
3020 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
3021 err
= mlx4_SET_PORT_VXLAN(mdev
->dev
, priv
->port
, VXLAN_STEER_BY_OUTER_MAC
, 1);
3023 en_err(priv
, "Failed setting port L2 tunnel configuration, err %d\n",
3030 en_warn(priv
, "Initializing port\n");
3031 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
3033 en_err(priv
, "Failed Initializing port\n");
3036 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
3038 /* Initialize time stamp mechanism */
3039 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
3040 mlx4_en_init_timestamp(mdev
);
3042 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
3043 SERVICE_TASK_DELAY
);
3045 mlx4_en_set_stats_bitmap(mdev
->dev
, &priv
->stats_bitmap
,
3046 mdev
->profile
.prof
[priv
->port
].rx_ppp
,
3047 mdev
->profile
.prof
[priv
->port
].rx_pause
,
3048 mdev
->profile
.prof
[priv
->port
].tx_ppp
,
3049 mdev
->profile
.prof
[priv
->port
].tx_pause
);
3051 err
= register_netdev(dev
);
3053 en_err(priv
, "Netdev registration failed for port %d\n", port
);
3057 priv
->registered
= 1;
3058 devlink_port_type_eth_set(mlx4_get_devlink_port(mdev
->dev
, priv
->port
),
3064 mlx4_en_destroy_netdev(dev
);
3068 int mlx4_en_reset_config(struct net_device
*dev
,
3069 struct hwtstamp_config ts_config
,
3070 netdev_features_t features
)
3072 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
3073 struct mlx4_en_dev
*mdev
= priv
->mdev
;
3077 if (priv
->hwtstamp_config
.tx_type
== ts_config
.tx_type
&&
3078 priv
->hwtstamp_config
.rx_filter
== ts_config
.rx_filter
&&
3079 !DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
) &&
3080 !DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_RXFCS
))
3081 return 0; /* Nothing to change */
3083 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
) &&
3084 (features
& NETIF_F_HW_VLAN_CTAG_RX
) &&
3085 (priv
->hwtstamp_config
.rx_filter
!= HWTSTAMP_FILTER_NONE
)) {
3086 en_warn(priv
, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3090 mutex_lock(&mdev
->state_lock
);
3091 if (priv
->port_up
) {
3093 mlx4_en_stop_port(dev
, 1);
3096 mlx4_en_free_resources(priv
);
3098 en_warn(priv
, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3099 ts_config
.rx_filter
, !!(features
& NETIF_F_HW_VLAN_CTAG_RX
));
3101 priv
->hwtstamp_config
.tx_type
= ts_config
.tx_type
;
3102 priv
->hwtstamp_config
.rx_filter
= ts_config
.rx_filter
;
3104 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
)) {
3105 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
3106 dev
->features
|= NETIF_F_HW_VLAN_CTAG_RX
;
3108 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3109 } else if (ts_config
.rx_filter
== HWTSTAMP_FILTER_NONE
) {
3110 /* RX time-stamping is OFF, update the RX vlan offload
3111 * to the latest wanted state
3113 if (dev
->wanted_features
& NETIF_F_HW_VLAN_CTAG_RX
)
3114 dev
->features
|= NETIF_F_HW_VLAN_CTAG_RX
;
3116 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3119 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_RXFCS
)) {
3120 if (features
& NETIF_F_RXFCS
)
3121 dev
->features
|= NETIF_F_RXFCS
;
3123 dev
->features
&= ~NETIF_F_RXFCS
;
3126 /* RX vlan offload and RX time-stamping can't co-exist !
3127 * Regardless of the caller's choice,
3128 * Turn Off RX vlan offload in case of time-stamping is ON
3130 if (ts_config
.rx_filter
!= HWTSTAMP_FILTER_NONE
) {
3131 if (dev
->features
& NETIF_F_HW_VLAN_CTAG_RX
)
3132 en_warn(priv
, "Turning off RX vlan offload since RX time-stamping is ON\n");
3133 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3136 err
= mlx4_en_alloc_resources(priv
);
3138 en_err(priv
, "Failed reallocating port resources\n");
3142 err
= mlx4_en_start_port(dev
);
3144 en_err(priv
, "Failed starting port\n");
3148 mutex_unlock(&mdev
->state_lock
);
3149 netdev_features_change(dev
);