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>
42 #include <linux/mlx4/driver.h>
43 #include <linux/mlx4/device.h>
44 #include <linux/mlx4/cmd.h>
45 #include <linux/mlx4/cq.h>
50 int mlx4_en_setup_tc(struct net_device
*dev
, u8 up
)
52 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
54 unsigned int offset
= 0;
56 if (up
&& up
!= MLX4_EN_NUM_UP
)
59 netdev_set_num_tc(dev
, up
);
61 /* Partition Tx queues evenly amongst UP's */
62 for (i
= 0; i
< up
; i
++) {
63 netdev_set_tc_queue(dev
, i
, priv
->num_tx_rings_p_up
, offset
);
64 offset
+= priv
->num_tx_rings_p_up
;
70 #ifdef CONFIG_RFS_ACCEL
72 struct mlx4_en_filter
{
73 struct list_head next
;
74 struct work_struct work
;
82 struct mlx4_en_priv
*priv
;
83 u32 flow_id
; /* RFS infrastructure id */
84 int id
; /* mlx4_en driver id */
85 u64 reg_id
; /* Flow steering API id */
86 u8 activated
; /* Used to prevent expiry before filter
89 struct hlist_node filter_chain
;
92 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
);
94 static void mlx4_en_filter_work(struct work_struct
*work
)
96 struct mlx4_en_filter
*filter
= container_of(work
,
97 struct mlx4_en_filter
,
99 struct mlx4_en_priv
*priv
= filter
->priv
;
100 struct mlx4_spec_list spec_tcp
= {
101 .id
= MLX4_NET_TRANS_RULE_ID_TCP
,
104 .dst_port
= filter
->dst_port
,
105 .dst_port_msk
= (__force __be16
)-1,
106 .src_port
= filter
->src_port
,
107 .src_port_msk
= (__force __be16
)-1,
111 struct mlx4_spec_list spec_ip
= {
112 .id
= MLX4_NET_TRANS_RULE_ID_IPV4
,
115 .dst_ip
= filter
->dst_ip
,
116 .dst_ip_msk
= (__force __be32
)-1,
117 .src_ip
= filter
->src_ip
,
118 .src_ip_msk
= (__force __be32
)-1,
122 struct mlx4_spec_list spec_eth
= {
123 .id
= MLX4_NET_TRANS_RULE_ID_ETH
,
125 struct mlx4_net_trans_rule rule
= {
126 .list
= LIST_HEAD_INIT(rule
.list
),
127 .queue_mode
= MLX4_NET_TRANS_Q_LIFO
,
130 .promisc_mode
= MLX4_FS_PROMISC_NONE
,
132 .priority
= MLX4_DOMAIN_RFS
,
135 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
137 list_add_tail(&spec_eth
.list
, &rule
.list
);
138 list_add_tail(&spec_ip
.list
, &rule
.list
);
139 list_add_tail(&spec_tcp
.list
, &rule
.list
);
141 rule
.qpn
= priv
->rss_map
.qps
[filter
->rxq_index
].qpn
;
142 memcpy(spec_eth
.eth
.dst_mac
, priv
->dev
->dev_addr
, ETH_ALEN
);
143 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
145 filter
->activated
= 0;
147 if (filter
->reg_id
) {
148 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
149 if (rc
&& rc
!= -ENOENT
)
150 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
153 rc
= mlx4_flow_attach(priv
->mdev
->dev
, &rule
, &filter
->reg_id
);
155 en_err(priv
, "Error attaching flow. err = %d\n", rc
);
157 mlx4_en_filter_rfs_expire(priv
);
159 filter
->activated
= 1;
162 static inline struct hlist_head
*
163 filter_hash_bucket(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
164 __be16 src_port
, __be16 dst_port
)
169 l
= (__force
unsigned long)src_port
|
170 ((__force
unsigned long)dst_port
<< 2);
171 l
^= (__force
unsigned long)(src_ip
^ dst_ip
);
173 bucket_idx
= hash_long(l
, MLX4_EN_FILTER_HASH_SHIFT
);
175 return &priv
->filter_hash
[bucket_idx
];
178 static struct mlx4_en_filter
*
179 mlx4_en_filter_alloc(struct mlx4_en_priv
*priv
, int rxq_index
, __be32 src_ip
,
180 __be32 dst_ip
, __be16 src_port
, __be16 dst_port
,
183 struct mlx4_en_filter
*filter
= NULL
;
185 filter
= kzalloc(sizeof(struct mlx4_en_filter
), GFP_ATOMIC
);
190 filter
->rxq_index
= rxq_index
;
191 INIT_WORK(&filter
->work
, mlx4_en_filter_work
);
193 filter
->src_ip
= src_ip
;
194 filter
->dst_ip
= dst_ip
;
195 filter
->src_port
= src_port
;
196 filter
->dst_port
= dst_port
;
198 filter
->flow_id
= flow_id
;
200 filter
->id
= priv
->last_filter_id
++ % RPS_NO_FILTER
;
202 list_add_tail(&filter
->next
, &priv
->filters
);
203 hlist_add_head(&filter
->filter_chain
,
204 filter_hash_bucket(priv
, src_ip
, dst_ip
, src_port
,
210 static void mlx4_en_filter_free(struct mlx4_en_filter
*filter
)
212 struct mlx4_en_priv
*priv
= filter
->priv
;
215 list_del(&filter
->next
);
217 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
218 if (rc
&& rc
!= -ENOENT
)
219 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
224 static inline struct mlx4_en_filter
*
225 mlx4_en_filter_find(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
226 __be16 src_port
, __be16 dst_port
)
228 struct mlx4_en_filter
*filter
;
229 struct mlx4_en_filter
*ret
= NULL
;
231 hlist_for_each_entry(filter
,
232 filter_hash_bucket(priv
, src_ip
, dst_ip
,
235 if (filter
->src_ip
== src_ip
&&
236 filter
->dst_ip
== dst_ip
&&
237 filter
->src_port
== src_port
&&
238 filter
->dst_port
== dst_port
) {
248 mlx4_en_filter_rfs(struct net_device
*net_dev
, const struct sk_buff
*skb
,
249 u16 rxq_index
, u32 flow_id
)
251 struct mlx4_en_priv
*priv
= netdev_priv(net_dev
);
252 struct mlx4_en_filter
*filter
;
253 const struct iphdr
*ip
;
259 int nhoff
= skb_network_offset(skb
);
262 if (skb
->protocol
!= htons(ETH_P_IP
))
263 return -EPROTONOSUPPORT
;
265 ip
= (const struct iphdr
*)(skb
->data
+ nhoff
);
266 if (ip_is_fragment(ip
))
267 return -EPROTONOSUPPORT
;
269 ports
= (const __be16
*)(skb
->data
+ nhoff
+ 4 * ip
->ihl
);
276 if (ip
->protocol
!= IPPROTO_TCP
)
277 return -EPROTONOSUPPORT
;
279 spin_lock_bh(&priv
->filters_lock
);
280 filter
= mlx4_en_filter_find(priv
, src_ip
, dst_ip
, src_port
, dst_port
);
282 if (filter
->rxq_index
== rxq_index
)
285 filter
->rxq_index
= rxq_index
;
287 filter
= mlx4_en_filter_alloc(priv
, rxq_index
,
289 src_port
, dst_port
, flow_id
);
296 queue_work(priv
->mdev
->workqueue
, &filter
->work
);
301 spin_unlock_bh(&priv
->filters_lock
);
306 void mlx4_en_cleanup_filters(struct mlx4_en_priv
*priv
,
307 struct mlx4_en_rx_ring
*rx_ring
)
309 struct mlx4_en_filter
*filter
, *tmp
;
312 spin_lock_bh(&priv
->filters_lock
);
313 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
314 list_move(&filter
->next
, &del_list
);
315 hlist_del(&filter
->filter_chain
);
317 spin_unlock_bh(&priv
->filters_lock
);
319 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
) {
320 cancel_work_sync(&filter
->work
);
321 mlx4_en_filter_free(filter
);
325 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
)
327 struct mlx4_en_filter
*filter
= NULL
, *tmp
, *last_filter
= NULL
;
331 spin_lock_bh(&priv
->filters_lock
);
332 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
333 if (i
> MLX4_EN_FILTER_EXPIRY_QUOTA
)
336 if (filter
->activated
&&
337 !work_pending(&filter
->work
) &&
338 rps_may_expire_flow(priv
->dev
,
339 filter
->rxq_index
, filter
->flow_id
,
341 list_move(&filter
->next
, &del_list
);
342 hlist_del(&filter
->filter_chain
);
344 last_filter
= filter
;
349 if (last_filter
&& (&last_filter
->next
!= priv
->filters
.next
))
350 list_move(&priv
->filters
, &last_filter
->next
);
352 spin_unlock_bh(&priv
->filters_lock
);
354 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
)
355 mlx4_en_filter_free(filter
);
359 static int mlx4_en_vlan_rx_add_vid(struct net_device
*dev
,
360 __be16 proto
, u16 vid
)
362 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
363 struct mlx4_en_dev
*mdev
= priv
->mdev
;
367 en_dbg(HW
, priv
, "adding VLAN:%d\n", vid
);
369 set_bit(vid
, priv
->active_vlans
);
371 /* Add VID to port VLAN filter */
372 mutex_lock(&mdev
->state_lock
);
373 if (mdev
->device_up
&& priv
->port_up
) {
374 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
376 en_err(priv
, "Failed configuring VLAN filter\n");
378 if (mlx4_register_vlan(mdev
->dev
, priv
->port
, vid
, &idx
))
379 en_err(priv
, "failed adding vlan %d\n", vid
);
380 mutex_unlock(&mdev
->state_lock
);
385 static int mlx4_en_vlan_rx_kill_vid(struct net_device
*dev
,
386 __be16 proto
, u16 vid
)
388 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
389 struct mlx4_en_dev
*mdev
= priv
->mdev
;
393 en_dbg(HW
, priv
, "Killing VID:%d\n", vid
);
395 clear_bit(vid
, priv
->active_vlans
);
397 /* Remove VID from port VLAN filter */
398 mutex_lock(&mdev
->state_lock
);
399 if (!mlx4_find_cached_vlan(mdev
->dev
, priv
->port
, vid
, &idx
))
400 mlx4_unregister_vlan(mdev
->dev
, priv
->port
, idx
);
402 en_err(priv
, "could not find vid %d in cache\n", vid
);
404 if (mdev
->device_up
&& priv
->port_up
) {
405 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
407 en_err(priv
, "Failed configuring VLAN filter\n");
409 mutex_unlock(&mdev
->state_lock
);
414 static void mlx4_en_u64_to_mac(unsigned char dst_mac
[ETH_ALEN
+ 2], u64 src_mac
)
417 for (i
= ETH_ALEN
- 1; i
>= 0; --i
) {
418 dst_mac
[i
] = src_mac
& 0xff;
421 memset(&dst_mac
[ETH_ALEN
], 0, 2);
424 static int mlx4_en_uc_steer_add(struct mlx4_en_priv
*priv
,
425 unsigned char *mac
, int *qpn
, u64
*reg_id
)
427 struct mlx4_en_dev
*mdev
= priv
->mdev
;
428 struct mlx4_dev
*dev
= mdev
->dev
;
431 switch (dev
->caps
.steering_mode
) {
432 case MLX4_STEERING_MODE_B0
: {
437 memcpy(&gid
[10], mac
, ETH_ALEN
);
440 err
= mlx4_unicast_attach(dev
, &qp
, gid
, 0, MLX4_PROT_ETH
);
443 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
444 struct mlx4_spec_list spec_eth
= { {NULL
} };
445 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
447 struct mlx4_net_trans_rule rule
= {
448 .queue_mode
= MLX4_NET_TRANS_Q_FIFO
,
451 .promisc_mode
= MLX4_FS_PROMISC_NONE
,
452 .priority
= MLX4_DOMAIN_NIC
,
455 rule
.port
= priv
->port
;
457 INIT_LIST_HEAD(&rule
.list
);
459 spec_eth
.id
= MLX4_NET_TRANS_RULE_ID_ETH
;
460 memcpy(spec_eth
.eth
.dst_mac
, mac
, ETH_ALEN
);
461 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
462 list_add_tail(&spec_eth
.list
, &rule
.list
);
464 err
= mlx4_flow_attach(dev
, &rule
, reg_id
);
471 en_warn(priv
, "Failed Attaching Unicast\n");
476 static void mlx4_en_uc_steer_release(struct mlx4_en_priv
*priv
,
477 unsigned char *mac
, int qpn
, u64 reg_id
)
479 struct mlx4_en_dev
*mdev
= priv
->mdev
;
480 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 mlx4_unicast_detach(dev
, &qp
, gid
, MLX4_PROT_ETH
);
494 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
495 mlx4_flow_detach(dev
, reg_id
);
499 en_err(priv
, "Invalid steering mode.\n");
503 static int mlx4_en_get_qp(struct mlx4_en_priv
*priv
)
505 struct mlx4_en_dev
*mdev
= priv
->mdev
;
506 struct mlx4_dev
*dev
= mdev
->dev
;
507 struct mlx4_mac_entry
*entry
;
511 int *qpn
= &priv
->base_qpn
;
512 u64 mac
= mlx4_en_mac_to_u64(priv
->dev
->dev_addr
);
514 en_dbg(DRV
, priv
, "Registering MAC: %pM for adding\n",
515 priv
->dev
->dev_addr
);
516 index
= mlx4_register_mac(dev
, priv
->port
, mac
);
519 en_err(priv
, "Failed adding MAC: %pM\n",
520 priv
->dev
->dev_addr
);
524 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
525 int base_qpn
= mlx4_get_base_qpn(dev
, priv
->port
);
526 *qpn
= base_qpn
+ index
;
530 err
= mlx4_qp_reserve_range(dev
, 1, 1, qpn
);
531 en_dbg(DRV
, priv
, "Reserved qp %d\n", *qpn
);
533 en_err(priv
, "Failed to reserve qp for mac registration\n");
537 err
= mlx4_en_uc_steer_add(priv
, priv
->dev
->dev_addr
, qpn
, ®_id
);
541 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
546 memcpy(entry
->mac
, priv
->dev
->dev_addr
, sizeof(entry
->mac
));
547 entry
->reg_id
= reg_id
;
549 hlist_add_head_rcu(&entry
->hlist
,
550 &priv
->mac_hash
[entry
->mac
[MLX4_EN_MAC_HASH_IDX
]]);
555 mlx4_en_uc_steer_release(priv
, priv
->dev
->dev_addr
, *qpn
, reg_id
);
558 mlx4_qp_release_range(dev
, *qpn
, 1);
561 mlx4_unregister_mac(dev
, priv
->port
, mac
);
565 static void mlx4_en_put_qp(struct mlx4_en_priv
*priv
)
567 struct mlx4_en_dev
*mdev
= priv
->mdev
;
568 struct mlx4_dev
*dev
= mdev
->dev
;
569 int qpn
= priv
->base_qpn
;
572 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
573 mac
= mlx4_en_mac_to_u64(priv
->dev
->dev_addr
);
574 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
575 priv
->dev
->dev_addr
);
576 mlx4_unregister_mac(dev
, priv
->port
, mac
);
578 struct mlx4_mac_entry
*entry
;
579 struct hlist_node
*tmp
;
580 struct hlist_head
*bucket
;
583 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
584 bucket
= &priv
->mac_hash
[i
];
585 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
586 mac
= mlx4_en_mac_to_u64(entry
->mac
);
587 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
589 mlx4_en_uc_steer_release(priv
, entry
->mac
,
592 mlx4_unregister_mac(dev
, priv
->port
, mac
);
593 hlist_del_rcu(&entry
->hlist
);
594 kfree_rcu(entry
, rcu
);
598 en_dbg(DRV
, priv
, "Releasing qp: port %d, qpn %d\n",
600 mlx4_qp_release_range(dev
, qpn
, 1);
601 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
605 static int mlx4_en_replace_mac(struct mlx4_en_priv
*priv
, int qpn
,
606 unsigned char *new_mac
, unsigned char *prev_mac
)
608 struct mlx4_en_dev
*mdev
= priv
->mdev
;
609 struct mlx4_dev
*dev
= mdev
->dev
;
611 u64 new_mac_u64
= mlx4_en_mac_to_u64(new_mac
);
613 if (dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
) {
614 struct hlist_head
*bucket
;
615 unsigned int mac_hash
;
616 struct mlx4_mac_entry
*entry
;
617 struct hlist_node
*tmp
;
618 u64 prev_mac_u64
= mlx4_en_mac_to_u64(prev_mac
);
620 bucket
= &priv
->mac_hash
[prev_mac
[MLX4_EN_MAC_HASH_IDX
]];
621 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
622 if (ether_addr_equal_64bits(entry
->mac
, prev_mac
)) {
623 mlx4_en_uc_steer_release(priv
, entry
->mac
,
625 mlx4_unregister_mac(dev
, priv
->port
,
627 hlist_del_rcu(&entry
->hlist
);
629 memcpy(entry
->mac
, new_mac
, ETH_ALEN
);
631 mac_hash
= new_mac
[MLX4_EN_MAC_HASH_IDX
];
632 hlist_add_head_rcu(&entry
->hlist
,
633 &priv
->mac_hash
[mac_hash
]);
634 mlx4_register_mac(dev
, priv
->port
, new_mac_u64
);
635 err
= mlx4_en_uc_steer_add(priv
, new_mac
,
644 return __mlx4_replace_mac(dev
, priv
->port
, qpn
, new_mac_u64
);
647 u64
mlx4_en_mac_to_u64(u8
*addr
)
652 for (i
= 0; i
< ETH_ALEN
; i
++) {
659 static int mlx4_en_do_set_mac(struct mlx4_en_priv
*priv
)
664 /* Remove old MAC and insert the new one */
665 err
= mlx4_en_replace_mac(priv
, priv
->base_qpn
,
666 priv
->dev
->dev_addr
, priv
->prev_mac
);
668 en_err(priv
, "Failed changing HW MAC address\n");
669 memcpy(priv
->prev_mac
, priv
->dev
->dev_addr
,
670 sizeof(priv
->prev_mac
));
672 en_dbg(HW
, priv
, "Port is down while registering mac, exiting...\n");
677 static int mlx4_en_set_mac(struct net_device
*dev
, void *addr
)
679 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
680 struct mlx4_en_dev
*mdev
= priv
->mdev
;
681 struct sockaddr
*saddr
= addr
;
684 if (!is_valid_ether_addr(saddr
->sa_data
))
685 return -EADDRNOTAVAIL
;
687 memcpy(dev
->dev_addr
, saddr
->sa_data
, ETH_ALEN
);
689 mutex_lock(&mdev
->state_lock
);
690 err
= mlx4_en_do_set_mac(priv
);
691 mutex_unlock(&mdev
->state_lock
);
696 static void mlx4_en_clear_list(struct net_device
*dev
)
698 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
699 struct mlx4_en_mc_list
*tmp
, *mc_to_del
;
701 list_for_each_entry_safe(mc_to_del
, tmp
, &priv
->mc_list
, list
) {
702 list_del(&mc_to_del
->list
);
707 static void mlx4_en_cache_mclist(struct net_device
*dev
)
709 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
710 struct netdev_hw_addr
*ha
;
711 struct mlx4_en_mc_list
*tmp
;
713 mlx4_en_clear_list(dev
);
714 netdev_for_each_mc_addr(ha
, dev
) {
715 tmp
= kzalloc(sizeof(struct mlx4_en_mc_list
), GFP_ATOMIC
);
717 mlx4_en_clear_list(dev
);
720 memcpy(tmp
->addr
, ha
->addr
, ETH_ALEN
);
721 list_add_tail(&tmp
->list
, &priv
->mc_list
);
725 static void update_mclist_flags(struct mlx4_en_priv
*priv
,
726 struct list_head
*dst
,
727 struct list_head
*src
)
729 struct mlx4_en_mc_list
*dst_tmp
, *src_tmp
, *new_mc
;
732 /* Find all the entries that should be removed from dst,
733 * These are the entries that are not found in src
735 list_for_each_entry(dst_tmp
, dst
, list
) {
737 list_for_each_entry(src_tmp
, src
, list
) {
738 if (!memcmp(dst_tmp
->addr
, src_tmp
->addr
, ETH_ALEN
)) {
744 dst_tmp
->action
= MCLIST_REM
;
747 /* Add entries that exist in src but not in dst
748 * mark them as need to add
750 list_for_each_entry(src_tmp
, src
, list
) {
752 list_for_each_entry(dst_tmp
, dst
, list
) {
753 if (!memcmp(dst_tmp
->addr
, src_tmp
->addr
, ETH_ALEN
)) {
754 dst_tmp
->action
= MCLIST_NONE
;
760 new_mc
= kmemdup(src_tmp
,
761 sizeof(struct mlx4_en_mc_list
),
766 new_mc
->action
= MCLIST_ADD
;
767 list_add_tail(&new_mc
->list
, dst
);
772 static void mlx4_en_set_rx_mode(struct net_device
*dev
)
774 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
779 queue_work(priv
->mdev
->workqueue
, &priv
->rx_mode_task
);
782 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv
*priv
,
783 struct mlx4_en_dev
*mdev
)
787 if (!(priv
->flags
& MLX4_EN_FLAG_PROMISC
)) {
788 if (netif_msg_rx_status(priv
))
789 en_warn(priv
, "Entering promiscuous mode\n");
790 priv
->flags
|= MLX4_EN_FLAG_PROMISC
;
792 /* Enable promiscouos mode */
793 switch (mdev
->dev
->caps
.steering_mode
) {
794 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
795 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
798 MLX4_FS_PROMISC_UPLINK
);
800 en_err(priv
, "Failed enabling promiscuous mode\n");
801 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
804 case MLX4_STEERING_MODE_B0
:
805 err
= mlx4_unicast_promisc_add(mdev
->dev
,
809 en_err(priv
, "Failed enabling unicast promiscuous mode\n");
811 /* Add the default qp number as multicast
814 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
815 err
= mlx4_multicast_promisc_add(mdev
->dev
,
819 en_err(priv
, "Failed enabling multicast promiscuous mode\n");
820 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
824 case MLX4_STEERING_MODE_A0
:
825 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
830 en_err(priv
, "Failed enabling promiscuous mode\n");
834 /* Disable port multicast filter (unconditionally) */
835 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
836 0, MLX4_MCAST_DISABLE
);
838 en_err(priv
, "Failed disabling multicast filter\n");
840 /* Disable port VLAN filter */
841 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
843 en_err(priv
, "Failed disabling VLAN filter\n");
847 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv
*priv
,
848 struct mlx4_en_dev
*mdev
)
852 if (netif_msg_rx_status(priv
))
853 en_warn(priv
, "Leaving promiscuous mode\n");
854 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
856 /* Disable promiscouos mode */
857 switch (mdev
->dev
->caps
.steering_mode
) {
858 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
859 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
861 MLX4_FS_PROMISC_UPLINK
);
863 en_err(priv
, "Failed disabling promiscuous mode\n");
864 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
867 case MLX4_STEERING_MODE_B0
:
868 err
= mlx4_unicast_promisc_remove(mdev
->dev
,
872 en_err(priv
, "Failed disabling unicast promiscuous mode\n");
873 /* Disable Multicast promisc */
874 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
875 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
879 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
880 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
884 case MLX4_STEERING_MODE_A0
:
885 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
889 en_err(priv
, "Failed disabling promiscuous mode\n");
893 /* Enable port VLAN filter */
894 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
896 en_err(priv
, "Failed enabling VLAN filter\n");
899 static void mlx4_en_do_multicast(struct mlx4_en_priv
*priv
,
900 struct net_device
*dev
,
901 struct mlx4_en_dev
*mdev
)
903 struct mlx4_en_mc_list
*mclist
, *tmp
;
905 u8 mc_list
[16] = {0};
908 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
909 if (dev
->flags
& IFF_ALLMULTI
) {
910 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
911 0, MLX4_MCAST_DISABLE
);
913 en_err(priv
, "Failed disabling multicast filter\n");
915 /* Add the default qp number as multicast promisc */
916 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
917 switch (mdev
->dev
->caps
.steering_mode
) {
918 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
919 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
922 MLX4_FS_PROMISC_ALL_MULTI
);
925 case MLX4_STEERING_MODE_B0
:
926 err
= mlx4_multicast_promisc_add(mdev
->dev
,
931 case MLX4_STEERING_MODE_A0
:
935 en_err(priv
, "Failed entering multicast promisc mode\n");
936 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
939 /* Disable Multicast promisc */
940 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
941 switch (mdev
->dev
->caps
.steering_mode
) {
942 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
943 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
945 MLX4_FS_PROMISC_ALL_MULTI
);
948 case MLX4_STEERING_MODE_B0
:
949 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
954 case MLX4_STEERING_MODE_A0
:
958 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
959 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
962 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
963 0, MLX4_MCAST_DISABLE
);
965 en_err(priv
, "Failed disabling multicast filter\n");
967 /* Flush mcast filter and init it with broadcast address */
968 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, ETH_BCAST
,
969 1, MLX4_MCAST_CONFIG
);
971 /* Update multicast list - we cache all addresses so they won't
972 * change while HW is updated holding the command semaphor */
973 netif_addr_lock_bh(dev
);
974 mlx4_en_cache_mclist(dev
);
975 netif_addr_unlock_bh(dev
);
976 list_for_each_entry(mclist
, &priv
->mc_list
, list
) {
977 mcast_addr
= mlx4_en_mac_to_u64(mclist
->addr
);
978 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
,
979 mcast_addr
, 0, MLX4_MCAST_CONFIG
);
981 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
982 0, MLX4_MCAST_ENABLE
);
984 en_err(priv
, "Failed enabling multicast filter\n");
986 update_mclist_flags(priv
, &priv
->curr_list
, &priv
->mc_list
);
987 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
988 if (mclist
->action
== MCLIST_REM
) {
989 /* detach this address and delete from list */
990 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
991 mc_list
[5] = priv
->port
;
992 err
= mlx4_multicast_detach(mdev
->dev
,
993 &priv
->rss_map
.indir_qp
,
998 en_err(priv
, "Fail 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");
1022 static void mlx4_en_do_uc_filter(struct mlx4_en_priv
*priv
,
1023 struct net_device
*dev
,
1024 struct mlx4_en_dev
*mdev
)
1026 struct netdev_hw_addr
*ha
;
1027 struct mlx4_mac_entry
*entry
;
1028 struct hlist_node
*tmp
;
1032 struct hlist_head
*bucket
;
1037 /* Note that we do not need to protect our mac_hash traversal with rcu,
1038 * since all modification code is protected by mdev->state_lock
1041 /* find what to remove */
1042 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1043 bucket
= &priv
->mac_hash
[i
];
1044 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1046 netdev_for_each_uc_addr(ha
, dev
) {
1047 if (ether_addr_equal_64bits(entry
->mac
,
1054 /* MAC address of the port is not in uc list */
1055 if (ether_addr_equal_64bits(entry
->mac
, dev
->dev_addr
))
1059 mac
= mlx4_en_mac_to_u64(entry
->mac
);
1060 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1063 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1065 hlist_del_rcu(&entry
->hlist
);
1066 kfree_rcu(entry
, rcu
);
1067 en_dbg(DRV
, priv
, "Removed MAC %pM on port:%d\n",
1068 entry
->mac
, priv
->port
);
1074 /* if we didn't remove anything, there is no use in trying to add
1075 * again once we are in a forced promisc mode state
1077 if ((priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) && 0 == removed
)
1080 prev_flags
= priv
->flags
;
1081 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
1083 /* find what to add */
1084 netdev_for_each_uc_addr(ha
, dev
) {
1086 bucket
= &priv
->mac_hash
[ha
->addr
[MLX4_EN_MAC_HASH_IDX
]];
1087 hlist_for_each_entry(entry
, bucket
, hlist
) {
1088 if (ether_addr_equal_64bits(entry
->mac
, ha
->addr
)) {
1095 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1097 en_err(priv
, "Failed adding MAC %pM on port:%d (out of memory)\n",
1098 ha
->addr
, priv
->port
);
1099 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1102 mac
= mlx4_en_mac_to_u64(ha
->addr
);
1103 memcpy(entry
->mac
, ha
->addr
, ETH_ALEN
);
1104 err
= mlx4_register_mac(mdev
->dev
, priv
->port
, mac
);
1106 en_err(priv
, "Failed registering MAC %pM on port %d: %d\n",
1107 ha
->addr
, priv
->port
, err
);
1109 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1112 err
= mlx4_en_uc_steer_add(priv
, ha
->addr
,
1116 en_err(priv
, "Failed adding MAC %pM on port %d: %d\n",
1117 ha
->addr
, priv
->port
, err
);
1118 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1120 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1123 unsigned int mac_hash
;
1124 en_dbg(DRV
, priv
, "Added MAC %pM on port:%d\n",
1125 ha
->addr
, priv
->port
);
1126 mac_hash
= ha
->addr
[MLX4_EN_MAC_HASH_IDX
];
1127 bucket
= &priv
->mac_hash
[mac_hash
];
1128 hlist_add_head_rcu(&entry
->hlist
, bucket
);
1133 if (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1134 en_warn(priv
, "Forcing promiscuous mode on port:%d\n",
1136 } else if (prev_flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1137 en_warn(priv
, "Stop forcing promiscuous mode on port:%d\n",
1142 static void mlx4_en_do_set_rx_mode(struct work_struct
*work
)
1144 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1146 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1147 struct net_device
*dev
= priv
->dev
;
1149 mutex_lock(&mdev
->state_lock
);
1150 if (!mdev
->device_up
) {
1151 en_dbg(HW
, priv
, "Card is not up, ignoring rx mode change.\n");
1154 if (!priv
->port_up
) {
1155 en_dbg(HW
, priv
, "Port is down, ignoring rx mode change.\n");
1159 if (!netif_carrier_ok(dev
)) {
1160 if (!mlx4_en_QUERY_PORT(mdev
, priv
->port
)) {
1161 if (priv
->port_state
.link_state
) {
1162 priv
->last_link_state
= MLX4_DEV_EVENT_PORT_UP
;
1163 netif_carrier_on(dev
);
1164 en_dbg(LINK
, priv
, "Link Up\n");
1169 if (dev
->priv_flags
& IFF_UNICAST_FLT
)
1170 mlx4_en_do_uc_filter(priv
, dev
, mdev
);
1172 /* Promsicuous mode: disable all filters */
1173 if ((dev
->flags
& IFF_PROMISC
) ||
1174 (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
)) {
1175 mlx4_en_set_promisc_mode(priv
, mdev
);
1179 /* Not in promiscuous mode */
1180 if (priv
->flags
& MLX4_EN_FLAG_PROMISC
)
1181 mlx4_en_clear_promisc_mode(priv
, mdev
);
1183 mlx4_en_do_multicast(priv
, dev
, mdev
);
1185 mutex_unlock(&mdev
->state_lock
);
1188 #ifdef CONFIG_NET_POLL_CONTROLLER
1189 static void mlx4_en_netpoll(struct net_device
*dev
)
1191 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1192 struct mlx4_en_cq
*cq
;
1193 unsigned long flags
;
1196 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1197 cq
= &priv
->rx_cq
[i
];
1198 spin_lock_irqsave(&cq
->lock
, flags
);
1199 napi_synchronize(&cq
->napi
);
1200 mlx4_en_process_rx_cq(dev
, cq
, 0);
1201 spin_unlock_irqrestore(&cq
->lock
, flags
);
1206 static void mlx4_en_tx_timeout(struct net_device
*dev
)
1208 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1209 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1211 if (netif_msg_timer(priv
))
1212 en_warn(priv
, "Tx timeout called on port:%d\n", priv
->port
);
1214 priv
->port_stats
.tx_timeout
++;
1215 en_dbg(DRV
, priv
, "Scheduling watchdog\n");
1216 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1220 static struct net_device_stats
*mlx4_en_get_stats(struct net_device
*dev
)
1222 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1224 spin_lock_bh(&priv
->stats_lock
);
1225 memcpy(&priv
->ret_stats
, &priv
->stats
, sizeof(priv
->stats
));
1226 spin_unlock_bh(&priv
->stats_lock
);
1228 return &priv
->ret_stats
;
1231 static void mlx4_en_set_default_moderation(struct mlx4_en_priv
*priv
)
1233 struct mlx4_en_cq
*cq
;
1236 /* If we haven't received a specific coalescing setting
1237 * (module param), we set the moderation parameters as follows:
1238 * - moder_cnt is set to the number of mtu sized packets to
1239 * satisfy our coalescing target.
1240 * - moder_time is set to a fixed value.
1242 priv
->rx_frames
= MLX4_EN_RX_COAL_TARGET
;
1243 priv
->rx_usecs
= MLX4_EN_RX_COAL_TIME
;
1244 priv
->tx_frames
= MLX4_EN_TX_COAL_PKTS
;
1245 priv
->tx_usecs
= MLX4_EN_TX_COAL_TIME
;
1246 en_dbg(INTR
, priv
, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1247 priv
->dev
->mtu
, priv
->rx_frames
, priv
->rx_usecs
);
1249 /* Setup cq moderation params */
1250 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1251 cq
= &priv
->rx_cq
[i
];
1252 cq
->moder_cnt
= priv
->rx_frames
;
1253 cq
->moder_time
= priv
->rx_usecs
;
1254 priv
->last_moder_time
[i
] = MLX4_EN_AUTO_CONF
;
1255 priv
->last_moder_packets
[i
] = 0;
1256 priv
->last_moder_bytes
[i
] = 0;
1259 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1260 cq
= &priv
->tx_cq
[i
];
1261 cq
->moder_cnt
= priv
->tx_frames
;
1262 cq
->moder_time
= priv
->tx_usecs
;
1265 /* Reset auto-moderation params */
1266 priv
->pkt_rate_low
= MLX4_EN_RX_RATE_LOW
;
1267 priv
->rx_usecs_low
= MLX4_EN_RX_COAL_TIME_LOW
;
1268 priv
->pkt_rate_high
= MLX4_EN_RX_RATE_HIGH
;
1269 priv
->rx_usecs_high
= MLX4_EN_RX_COAL_TIME_HIGH
;
1270 priv
->sample_interval
= MLX4_EN_SAMPLE_INTERVAL
;
1271 priv
->adaptive_rx_coal
= 1;
1272 priv
->last_moder_jiffies
= 0;
1273 priv
->last_moder_tx_packets
= 0;
1276 static void mlx4_en_auto_moderation(struct mlx4_en_priv
*priv
)
1278 unsigned long period
= (unsigned long) (jiffies
- priv
->last_moder_jiffies
);
1279 struct mlx4_en_cq
*cq
;
1280 unsigned long packets
;
1282 unsigned long avg_pkt_size
;
1283 unsigned long rx_packets
;
1284 unsigned long rx_bytes
;
1285 unsigned long rx_pkt_diff
;
1289 if (!priv
->adaptive_rx_coal
|| period
< priv
->sample_interval
* HZ
)
1292 for (ring
= 0; ring
< priv
->rx_ring_num
; ring
++) {
1293 spin_lock_bh(&priv
->stats_lock
);
1294 rx_packets
= priv
->rx_ring
[ring
].packets
;
1295 rx_bytes
= priv
->rx_ring
[ring
].bytes
;
1296 spin_unlock_bh(&priv
->stats_lock
);
1298 rx_pkt_diff
= ((unsigned long) (rx_packets
-
1299 priv
->last_moder_packets
[ring
]));
1300 packets
= rx_pkt_diff
;
1301 rate
= packets
* HZ
/ period
;
1302 avg_pkt_size
= packets
? ((unsigned long) (rx_bytes
-
1303 priv
->last_moder_bytes
[ring
])) / packets
: 0;
1305 /* Apply auto-moderation only when packet rate
1306 * exceeds a rate that it matters */
1307 if (rate
> (MLX4_EN_RX_RATE_THRESH
/ priv
->rx_ring_num
) &&
1308 avg_pkt_size
> MLX4_EN_AVG_PKT_SMALL
) {
1309 if (rate
< priv
->pkt_rate_low
)
1310 moder_time
= priv
->rx_usecs_low
;
1311 else if (rate
> priv
->pkt_rate_high
)
1312 moder_time
= priv
->rx_usecs_high
;
1314 moder_time
= (rate
- priv
->pkt_rate_low
) *
1315 (priv
->rx_usecs_high
- priv
->rx_usecs_low
) /
1316 (priv
->pkt_rate_high
- priv
->pkt_rate_low
) +
1319 moder_time
= priv
->rx_usecs_low
;
1322 if (moder_time
!= priv
->last_moder_time
[ring
]) {
1323 priv
->last_moder_time
[ring
] = moder_time
;
1324 cq
= &priv
->rx_cq
[ring
];
1325 cq
->moder_time
= moder_time
;
1326 err
= mlx4_en_set_cq_moder(priv
, cq
);
1328 en_err(priv
, "Failed modifying moderation for cq:%d\n",
1331 priv
->last_moder_packets
[ring
] = rx_packets
;
1332 priv
->last_moder_bytes
[ring
] = rx_bytes
;
1335 priv
->last_moder_jiffies
= jiffies
;
1338 static void mlx4_en_do_get_stats(struct work_struct
*work
)
1340 struct delayed_work
*delay
= to_delayed_work(work
);
1341 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1343 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1346 mutex_lock(&mdev
->state_lock
);
1347 if (mdev
->device_up
) {
1348 err
= mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 0);
1350 en_dbg(HW
, priv
, "Could not update stats\n");
1353 mlx4_en_auto_moderation(priv
);
1355 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
1357 if (mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
]) {
1358 mlx4_en_do_set_mac(priv
);
1359 mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
] = 0;
1361 mutex_unlock(&mdev
->state_lock
);
1364 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1367 static void mlx4_en_service_task(struct work_struct
*work
)
1369 struct delayed_work
*delay
= to_delayed_work(work
);
1370 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1372 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1374 mutex_lock(&mdev
->state_lock
);
1375 if (mdev
->device_up
) {
1376 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
1377 mlx4_en_ptp_overflow_check(mdev
);
1379 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
1380 SERVICE_TASK_DELAY
);
1382 mutex_unlock(&mdev
->state_lock
);
1385 static void mlx4_en_linkstate(struct work_struct
*work
)
1387 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1389 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1390 int linkstate
= priv
->link_state
;
1392 mutex_lock(&mdev
->state_lock
);
1393 /* If observable port state changed set carrier state and
1394 * report to system log */
1395 if (priv
->last_link_state
!= linkstate
) {
1396 if (linkstate
== MLX4_DEV_EVENT_PORT_DOWN
) {
1397 en_info(priv
, "Link Down\n");
1398 netif_carrier_off(priv
->dev
);
1400 en_info(priv
, "Link Up\n");
1401 netif_carrier_on(priv
->dev
);
1404 priv
->last_link_state
= linkstate
;
1405 mutex_unlock(&mdev
->state_lock
);
1409 int mlx4_en_start_port(struct net_device
*dev
)
1411 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1412 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1413 struct mlx4_en_cq
*cq
;
1414 struct mlx4_en_tx_ring
*tx_ring
;
1420 u8 mc_list
[16] = {0};
1422 if (priv
->port_up
) {
1423 en_dbg(DRV
, priv
, "start port called while port already up\n");
1427 INIT_LIST_HEAD(&priv
->mc_list
);
1428 INIT_LIST_HEAD(&priv
->curr_list
);
1429 INIT_LIST_HEAD(&priv
->ethtool_list
);
1430 memset(&priv
->ethtool_rules
[0], 0,
1431 sizeof(struct ethtool_flow_id
) * MAX_NUM_OF_FS_RULES
);
1433 /* Calculate Rx buf size */
1434 dev
->mtu
= min(dev
->mtu
, priv
->max_mtu
);
1435 mlx4_en_calc_rx_buf(dev
);
1436 en_dbg(DRV
, priv
, "Rx buf size:%d\n", priv
->rx_skb_size
);
1438 /* Configure rx cq's and rings */
1439 err
= mlx4_en_activate_rx_rings(priv
);
1441 en_err(priv
, "Failed to activate RX rings\n");
1444 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1445 cq
= &priv
->rx_cq
[i
];
1447 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1449 en_err(priv
, "Failed activating Rx CQ\n");
1452 for (j
= 0; j
< cq
->size
; j
++)
1453 cq
->buf
[j
].owner_sr_opcode
= MLX4_CQE_OWNER_MASK
;
1454 err
= mlx4_en_set_cq_moder(priv
, cq
);
1456 en_err(priv
, "Failed setting cq moderation parameters");
1457 mlx4_en_deactivate_cq(priv
, cq
);
1460 mlx4_en_arm_cq(priv
, cq
);
1461 priv
->rx_ring
[i
].cqn
= cq
->mcq
.cqn
;
1466 en_dbg(DRV
, priv
, "Getting qp number for port %d\n", priv
->port
);
1467 err
= mlx4_en_get_qp(priv
);
1469 en_err(priv
, "Failed getting eth qp\n");
1472 mdev
->mac_removed
[priv
->port
] = 0;
1474 err
= mlx4_en_config_rss_steer(priv
);
1476 en_err(priv
, "Failed configuring rss steering\n");
1480 err
= mlx4_en_create_drop_qp(priv
);
1484 /* Configure tx cq's and rings */
1485 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1487 cq
= &priv
->tx_cq
[i
];
1488 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1490 en_err(priv
, "Failed allocating Tx CQ\n");
1493 err
= mlx4_en_set_cq_moder(priv
, cq
);
1495 en_err(priv
, "Failed setting cq moderation parameters");
1496 mlx4_en_deactivate_cq(priv
, cq
);
1499 en_dbg(DRV
, priv
, "Resetting index of collapsed CQ:%d to -1\n", i
);
1500 cq
->buf
->wqe_index
= cpu_to_be16(0xffff);
1502 /* Configure ring */
1503 tx_ring
= &priv
->tx_ring
[i
];
1504 err
= mlx4_en_activate_tx_ring(priv
, tx_ring
, cq
->mcq
.cqn
,
1505 i
/ priv
->num_tx_rings_p_up
);
1507 en_err(priv
, "Failed allocating Tx ring\n");
1508 mlx4_en_deactivate_cq(priv
, cq
);
1511 tx_ring
->tx_queue
= netdev_get_tx_queue(dev
, i
);
1513 /* Arm CQ for TX completions */
1514 mlx4_en_arm_cq(priv
, cq
);
1516 /* Set initial ownership of all Tx TXBBs to SW (1) */
1517 for (j
= 0; j
< tx_ring
->buf_size
; j
+= STAMP_STRIDE
)
1518 *((u32
*) (tx_ring
->buf
+ j
)) = 0xffffffff;
1522 /* Configure port */
1523 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
1524 priv
->rx_skb_size
+ ETH_FCS_LEN
,
1525 priv
->prof
->tx_pause
,
1527 priv
->prof
->rx_pause
,
1528 priv
->prof
->rx_ppp
);
1530 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
1534 /* Set default qp number */
1535 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
, priv
->port
, priv
->base_qpn
, 0);
1537 en_err(priv
, "Failed setting default qp numbers\n");
1542 en_dbg(HW
, priv
, "Initializing port\n");
1543 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
1545 en_err(priv
, "Failed Initializing port\n");
1549 /* Attach rx QP to bradcast address */
1550 memset(&mc_list
[10], 0xff, ETH_ALEN
);
1551 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1552 if (mlx4_multicast_attach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1553 priv
->port
, 0, MLX4_PROT_ETH
,
1554 &priv
->broadcast_id
))
1555 mlx4_warn(mdev
, "Failed Attaching Broadcast\n");
1557 /* Must redo promiscuous mode setup. */
1558 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
| MLX4_EN_FLAG_MC_PROMISC
);
1560 /* Schedule multicast task to populate multicast list */
1561 queue_work(mdev
->workqueue
, &priv
->rx_mode_task
);
1563 mlx4_set_stats_bitmap(mdev
->dev
, &priv
->stats_bitmap
);
1565 priv
->port_up
= true;
1566 netif_tx_start_all_queues(dev
);
1567 netif_device_attach(dev
);
1572 while (tx_index
--) {
1573 mlx4_en_deactivate_tx_ring(priv
, &priv
->tx_ring
[tx_index
]);
1574 mlx4_en_deactivate_cq(priv
, &priv
->tx_cq
[tx_index
]);
1576 mlx4_en_destroy_drop_qp(priv
);
1578 mlx4_en_release_rss_steer(priv
);
1580 mlx4_en_put_qp(priv
);
1583 mlx4_en_deactivate_cq(priv
, &priv
->rx_cq
[rx_index
]);
1584 for (i
= 0; i
< priv
->rx_ring_num
; i
++)
1585 mlx4_en_deactivate_rx_ring(priv
, &priv
->rx_ring
[i
]);
1587 return err
; /* need to close devices */
1591 void mlx4_en_stop_port(struct net_device
*dev
, int detach
)
1593 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1594 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1595 struct mlx4_en_mc_list
*mclist
, *tmp
;
1596 struct ethtool_flow_id
*flow
, *tmp_flow
;
1598 u8 mc_list
[16] = {0};
1600 if (!priv
->port_up
) {
1601 en_dbg(DRV
, priv
, "stop port called while port already down\n");
1605 /* Synchronize with tx routine */
1606 netif_tx_lock_bh(dev
);
1608 netif_device_detach(dev
);
1609 netif_tx_stop_all_queues(dev
);
1610 netif_tx_unlock_bh(dev
);
1612 netif_tx_disable(dev
);
1614 /* Set port as not active */
1615 priv
->port_up
= false;
1617 /* Promsicuous mode */
1618 if (mdev
->dev
->caps
.steering_mode
==
1619 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1620 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
|
1621 MLX4_EN_FLAG_MC_PROMISC
);
1622 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1624 MLX4_FS_PROMISC_UPLINK
);
1625 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1627 MLX4_FS_PROMISC_ALL_MULTI
);
1628 } else if (priv
->flags
& MLX4_EN_FLAG_PROMISC
) {
1629 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
1631 /* Disable promiscouos mode */
1632 mlx4_unicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1635 /* Disable Multicast promisc */
1636 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
1637 mlx4_multicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1639 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
1643 /* Detach All multicasts */
1644 memset(&mc_list
[10], 0xff, ETH_ALEN
);
1645 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1646 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1647 MLX4_PROT_ETH
, priv
->broadcast_id
);
1648 list_for_each_entry(mclist
, &priv
->curr_list
, list
) {
1649 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1650 mc_list
[5] = priv
->port
;
1651 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
,
1652 mc_list
, MLX4_PROT_ETH
, mclist
->reg_id
);
1654 mlx4_en_clear_list(dev
);
1655 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
1656 list_del(&mclist
->list
);
1660 /* Flush multicast filter */
1661 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0, 1, MLX4_MCAST_CONFIG
);
1663 /* Remove flow steering rules for the port*/
1664 if (mdev
->dev
->caps
.steering_mode
==
1665 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1667 list_for_each_entry_safe(flow
, tmp_flow
,
1668 &priv
->ethtool_list
, list
) {
1669 mlx4_flow_detach(mdev
->dev
, flow
->id
);
1670 list_del(&flow
->list
);
1674 mlx4_en_destroy_drop_qp(priv
);
1677 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1678 mlx4_en_deactivate_tx_ring(priv
, &priv
->tx_ring
[i
]);
1679 mlx4_en_deactivate_cq(priv
, &priv
->tx_cq
[i
]);
1683 for (i
= 0; i
< priv
->tx_ring_num
; i
++)
1684 mlx4_en_free_tx_buf(dev
, &priv
->tx_ring
[i
]);
1687 mlx4_en_release_rss_steer(priv
);
1689 /* Unregister Mac address for the port */
1690 mlx4_en_put_qp(priv
);
1691 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN
))
1692 mdev
->mac_removed
[priv
->port
] = 1;
1695 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1696 mlx4_en_deactivate_rx_ring(priv
, &priv
->rx_ring
[i
]);
1697 while (test_bit(NAPI_STATE_SCHED
, &priv
->rx_cq
[i
].napi
.state
))
1699 mlx4_en_deactivate_cq(priv
, &priv
->rx_cq
[i
]);
1703 mlx4_CLOSE_PORT(mdev
->dev
, priv
->port
);
1706 static void mlx4_en_restart(struct work_struct
*work
)
1708 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1710 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1711 struct net_device
*dev
= priv
->dev
;
1713 en_dbg(DRV
, priv
, "Watchdog task called for port %d\n", priv
->port
);
1715 mutex_lock(&mdev
->state_lock
);
1716 if (priv
->port_up
) {
1717 mlx4_en_stop_port(dev
, 1);
1718 if (mlx4_en_start_port(dev
))
1719 en_err(priv
, "Failed restarting port %d\n", priv
->port
);
1721 mutex_unlock(&mdev
->state_lock
);
1724 static void mlx4_en_clear_stats(struct net_device
*dev
)
1726 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1727 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1730 if (mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 1))
1731 en_dbg(HW
, priv
, "Failed dumping statistics\n");
1733 memset(&priv
->stats
, 0, sizeof(priv
->stats
));
1734 memset(&priv
->pstats
, 0, sizeof(priv
->pstats
));
1735 memset(&priv
->pkstats
, 0, sizeof(priv
->pkstats
));
1736 memset(&priv
->port_stats
, 0, sizeof(priv
->port_stats
));
1738 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1739 priv
->tx_ring
[i
].bytes
= 0;
1740 priv
->tx_ring
[i
].packets
= 0;
1741 priv
->tx_ring
[i
].tx_csum
= 0;
1743 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1744 priv
->rx_ring
[i
].bytes
= 0;
1745 priv
->rx_ring
[i
].packets
= 0;
1746 priv
->rx_ring
[i
].csum_ok
= 0;
1747 priv
->rx_ring
[i
].csum_none
= 0;
1751 static int mlx4_en_open(struct net_device
*dev
)
1753 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1754 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1757 mutex_lock(&mdev
->state_lock
);
1759 if (!mdev
->device_up
) {
1760 en_err(priv
, "Cannot open - device down/disabled\n");
1765 /* Reset HW statistics and SW counters */
1766 mlx4_en_clear_stats(dev
);
1768 err
= mlx4_en_start_port(dev
);
1770 en_err(priv
, "Failed starting port:%d\n", priv
->port
);
1773 mutex_unlock(&mdev
->state_lock
);
1778 static int mlx4_en_close(struct net_device
*dev
)
1780 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1781 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1783 en_dbg(IFDOWN
, priv
, "Close port called\n");
1785 mutex_lock(&mdev
->state_lock
);
1787 mlx4_en_stop_port(dev
, 0);
1788 netif_carrier_off(dev
);
1790 mutex_unlock(&mdev
->state_lock
);
1794 void mlx4_en_free_resources(struct mlx4_en_priv
*priv
)
1798 #ifdef CONFIG_RFS_ACCEL
1799 free_irq_cpu_rmap(priv
->dev
->rx_cpu_rmap
);
1800 priv
->dev
->rx_cpu_rmap
= NULL
;
1803 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1804 if (priv
->tx_ring
[i
].tx_info
)
1805 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
1806 if (priv
->tx_cq
[i
].buf
)
1807 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
1810 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1811 if (priv
->rx_ring
[i
].rx_info
)
1812 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
1813 priv
->prof
->rx_ring_size
, priv
->stride
);
1814 if (priv
->rx_cq
[i
].buf
)
1815 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
1818 if (priv
->base_tx_qpn
) {
1819 mlx4_qp_release_range(priv
->mdev
->dev
, priv
->base_tx_qpn
, priv
->tx_ring_num
);
1820 priv
->base_tx_qpn
= 0;
1824 int mlx4_en_alloc_resources(struct mlx4_en_priv
*priv
)
1826 struct mlx4_en_port_profile
*prof
= priv
->prof
;
1830 err
= mlx4_qp_reserve_range(priv
->mdev
->dev
, priv
->tx_ring_num
, 256, &priv
->base_tx_qpn
);
1832 en_err(priv
, "failed reserving range for TX rings\n");
1836 /* Create tx Rings */
1837 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1838 if (mlx4_en_create_cq(priv
, &priv
->tx_cq
[i
],
1839 prof
->tx_ring_size
, i
, TX
))
1842 if (mlx4_en_create_tx_ring(priv
, &priv
->tx_ring
[i
], priv
->base_tx_qpn
+ i
,
1843 prof
->tx_ring_size
, TXBB_SIZE
))
1847 /* Create rx Rings */
1848 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1849 if (mlx4_en_create_cq(priv
, &priv
->rx_cq
[i
],
1850 prof
->rx_ring_size
, i
, RX
))
1853 if (mlx4_en_create_rx_ring(priv
, &priv
->rx_ring
[i
],
1854 prof
->rx_ring_size
, priv
->stride
))
1858 #ifdef CONFIG_RFS_ACCEL
1859 if (priv
->mdev
->dev
->caps
.comp_pool
) {
1860 priv
->dev
->rx_cpu_rmap
= alloc_irq_cpu_rmap(priv
->mdev
->dev
->caps
.comp_pool
);
1861 if (!priv
->dev
->rx_cpu_rmap
)
1869 en_err(priv
, "Failed to allocate NIC resources\n");
1874 void mlx4_en_destroy_netdev(struct net_device
*dev
)
1876 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1877 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1879 en_dbg(DRV
, priv
, "Destroying netdev on port:%d\n", priv
->port
);
1881 /* Unregister device - this will close the port if it was up */
1882 if (priv
->registered
)
1883 unregister_netdev(dev
);
1885 if (priv
->allocated
)
1886 mlx4_free_hwq_res(mdev
->dev
, &priv
->res
, MLX4_EN_PAGE_SIZE
);
1888 cancel_delayed_work(&priv
->stats_task
);
1889 cancel_delayed_work(&priv
->service_task
);
1890 /* flush any pending task for this netdev */
1891 flush_workqueue(mdev
->workqueue
);
1893 /* Detach the netdev so tasks would not attempt to access it */
1894 mutex_lock(&mdev
->state_lock
);
1895 mdev
->pndev
[priv
->port
] = NULL
;
1896 mutex_unlock(&mdev
->state_lock
);
1898 mlx4_en_free_resources(priv
);
1900 kfree(priv
->tx_ring
);
1906 static int mlx4_en_change_mtu(struct net_device
*dev
, int new_mtu
)
1908 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1909 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1912 en_dbg(DRV
, priv
, "Change MTU called - current:%d new:%d\n",
1915 if ((new_mtu
< MLX4_EN_MIN_MTU
) || (new_mtu
> priv
->max_mtu
)) {
1916 en_err(priv
, "Bad MTU size:%d.\n", new_mtu
);
1921 if (netif_running(dev
)) {
1922 mutex_lock(&mdev
->state_lock
);
1923 if (!mdev
->device_up
) {
1924 /* NIC is probably restarting - let watchdog task reset
1926 en_dbg(DRV
, priv
, "Change MTU called with card down!?\n");
1928 mlx4_en_stop_port(dev
, 1);
1929 err
= mlx4_en_start_port(dev
);
1931 en_err(priv
, "Failed restarting port:%d\n",
1933 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1936 mutex_unlock(&mdev
->state_lock
);
1941 static int mlx4_en_hwtstamp_ioctl(struct net_device
*dev
, struct ifreq
*ifr
)
1943 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1944 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1945 struct hwtstamp_config config
;
1947 if (copy_from_user(&config
, ifr
->ifr_data
, sizeof(config
)))
1950 /* reserved for future extensions */
1954 /* device doesn't support time stamping */
1955 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
))
1958 /* TX HW timestamp */
1959 switch (config
.tx_type
) {
1960 case HWTSTAMP_TX_OFF
:
1961 case HWTSTAMP_TX_ON
:
1967 /* RX HW timestamp */
1968 switch (config
.rx_filter
) {
1969 case HWTSTAMP_FILTER_NONE
:
1971 case HWTSTAMP_FILTER_ALL
:
1972 case HWTSTAMP_FILTER_SOME
:
1973 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT
:
1974 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC
:
1975 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ
:
1976 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT
:
1977 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC
:
1978 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ
:
1979 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT
:
1980 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC
:
1981 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ
:
1982 case HWTSTAMP_FILTER_PTP_V2_EVENT
:
1983 case HWTSTAMP_FILTER_PTP_V2_SYNC
:
1984 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
:
1985 config
.rx_filter
= HWTSTAMP_FILTER_ALL
;
1991 if (mlx4_en_timestamp_config(dev
, config
.tx_type
, config
.rx_filter
)) {
1992 config
.tx_type
= HWTSTAMP_TX_OFF
;
1993 config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
1996 return copy_to_user(ifr
->ifr_data
, &config
,
1997 sizeof(config
)) ? -EFAULT
: 0;
2000 static int mlx4_en_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2004 return mlx4_en_hwtstamp_ioctl(dev
, ifr
);
2010 static int mlx4_en_set_features(struct net_device
*netdev
,
2011 netdev_features_t features
)
2013 struct mlx4_en_priv
*priv
= netdev_priv(netdev
);
2015 if (features
& NETIF_F_LOOPBACK
)
2016 priv
->ctrl_flags
|= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK
);
2019 cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK
);
2021 mlx4_en_update_loopback_state(netdev
, features
);
2027 static int mlx4_en_set_vf_mac(struct net_device
*dev
, int queue
, u8
*mac
)
2029 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2030 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2031 u64 mac_u64
= mlx4_en_mac_to_u64(mac
);
2033 if (!is_valid_ether_addr(mac
))
2036 return mlx4_set_vf_mac(mdev
->dev
, en_priv
->port
, queue
, mac_u64
);
2039 static int mlx4_en_set_vf_vlan(struct net_device
*dev
, int vf
, u16 vlan
, u8 qos
)
2041 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2042 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2044 return mlx4_set_vf_vlan(mdev
->dev
, en_priv
->port
, vf
, vlan
, qos
);
2047 static int mlx4_en_set_vf_spoofchk(struct net_device
*dev
, int vf
, bool setting
)
2049 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2050 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2052 return mlx4_set_vf_spoofchk(mdev
->dev
, en_priv
->port
, vf
, setting
);
2056 static const struct net_device_ops mlx4_netdev_ops
= {
2057 .ndo_open
= mlx4_en_open
,
2058 .ndo_stop
= mlx4_en_close
,
2059 .ndo_start_xmit
= mlx4_en_xmit
,
2060 .ndo_select_queue
= mlx4_en_select_queue
,
2061 .ndo_get_stats
= mlx4_en_get_stats
,
2062 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2063 .ndo_set_mac_address
= mlx4_en_set_mac
,
2064 .ndo_validate_addr
= eth_validate_addr
,
2065 .ndo_change_mtu
= mlx4_en_change_mtu
,
2066 .ndo_do_ioctl
= mlx4_en_ioctl
,
2067 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2068 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2069 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2070 #ifdef CONFIG_NET_POLL_CONTROLLER
2071 .ndo_poll_controller
= mlx4_en_netpoll
,
2073 .ndo_set_features
= mlx4_en_set_features
,
2074 .ndo_setup_tc
= mlx4_en_setup_tc
,
2075 #ifdef CONFIG_RFS_ACCEL
2076 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2080 static const struct net_device_ops mlx4_netdev_ops_master
= {
2081 .ndo_open
= mlx4_en_open
,
2082 .ndo_stop
= mlx4_en_close
,
2083 .ndo_start_xmit
= mlx4_en_xmit
,
2084 .ndo_select_queue
= mlx4_en_select_queue
,
2085 .ndo_get_stats
= mlx4_en_get_stats
,
2086 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2087 .ndo_set_mac_address
= mlx4_en_set_mac
,
2088 .ndo_validate_addr
= eth_validate_addr
,
2089 .ndo_change_mtu
= mlx4_en_change_mtu
,
2090 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2091 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2092 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2093 .ndo_set_vf_mac
= mlx4_en_set_vf_mac
,
2094 .ndo_set_vf_vlan
= mlx4_en_set_vf_vlan
,
2095 .ndo_set_vf_spoofchk
= mlx4_en_set_vf_spoofchk
,
2096 #ifdef CONFIG_NET_POLL_CONTROLLER
2097 .ndo_poll_controller
= mlx4_en_netpoll
,
2099 .ndo_set_features
= mlx4_en_set_features
,
2100 .ndo_setup_tc
= mlx4_en_setup_tc
,
2101 #ifdef CONFIG_RFS_ACCEL
2102 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2106 int mlx4_en_init_netdev(struct mlx4_en_dev
*mdev
, int port
,
2107 struct mlx4_en_port_profile
*prof
)
2109 struct net_device
*dev
;
2110 struct mlx4_en_priv
*priv
;
2114 dev
= alloc_etherdev_mqs(sizeof(struct mlx4_en_priv
),
2115 MAX_TX_RINGS
, MAX_RX_RINGS
);
2119 netif_set_real_num_tx_queues(dev
, prof
->tx_ring_num
);
2120 netif_set_real_num_rx_queues(dev
, prof
->rx_ring_num
);
2122 SET_NETDEV_DEV(dev
, &mdev
->dev
->pdev
->dev
);
2123 dev
->dev_id
= port
- 1;
2126 * Initialize driver private data
2129 priv
= netdev_priv(dev
);
2130 memset(priv
, 0, sizeof(struct mlx4_en_priv
));
2133 priv
->ddev
= &mdev
->pdev
->dev
;
2136 priv
->port_up
= false;
2137 priv
->flags
= prof
->flags
;
2138 priv
->ctrl_flags
= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE
|
2139 MLX4_WQE_CTRL_SOLICITED
);
2140 priv
->num_tx_rings_p_up
= mdev
->profile
.num_tx_rings_p_up
;
2141 priv
->tx_ring_num
= prof
->tx_ring_num
;
2143 priv
->tx_ring
= kzalloc(sizeof(struct mlx4_en_tx_ring
) * MAX_TX_RINGS
,
2145 if (!priv
->tx_ring
) {
2149 priv
->tx_cq
= kzalloc(sizeof(struct mlx4_en_cq
) * MAX_TX_RINGS
,
2155 priv
->rx_ring_num
= prof
->rx_ring_num
;
2156 priv
->cqe_factor
= (mdev
->dev
->caps
.cqe_size
== 64) ? 1 : 0;
2157 priv
->mac_index
= -1;
2158 priv
->msg_enable
= MLX4_EN_MSG_LEVEL
;
2159 spin_lock_init(&priv
->stats_lock
);
2160 INIT_WORK(&priv
->rx_mode_task
, mlx4_en_do_set_rx_mode
);
2161 INIT_WORK(&priv
->watchdog_task
, mlx4_en_restart
);
2162 INIT_WORK(&priv
->linkstate_task
, mlx4_en_linkstate
);
2163 INIT_DELAYED_WORK(&priv
->stats_task
, mlx4_en_do_get_stats
);
2164 INIT_DELAYED_WORK(&priv
->service_task
, mlx4_en_service_task
);
2165 #ifdef CONFIG_MLX4_EN_DCB
2166 if (!mlx4_is_slave(priv
->mdev
->dev
)) {
2167 if (mdev
->dev
->caps
.flags
& MLX4_DEV_CAP_FLAG_SET_ETH_SCHED
) {
2168 dev
->dcbnl_ops
= &mlx4_en_dcbnl_ops
;
2170 en_info(priv
, "enabling only PFC DCB ops\n");
2171 dev
->dcbnl_ops
= &mlx4_en_dcbnl_pfc_ops
;
2176 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
)
2177 INIT_HLIST_HEAD(&priv
->mac_hash
[i
]);
2179 /* Query for default mac and max mtu */
2180 priv
->max_mtu
= mdev
->dev
->caps
.eth_mtu_cap
[priv
->port
];
2182 /* Set default MAC */
2183 dev
->addr_len
= ETH_ALEN
;
2184 mlx4_en_u64_to_mac(dev
->dev_addr
, mdev
->dev
->caps
.def_mac
[priv
->port
]);
2185 if (!is_valid_ether_addr(dev
->dev_addr
)) {
2186 en_err(priv
, "Port: %d, invalid mac burned: %pM, quiting\n",
2187 priv
->port
, dev
->dev_addr
);
2192 memcpy(priv
->prev_mac
, dev
->dev_addr
, sizeof(priv
->prev_mac
));
2194 priv
->stride
= roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc
) +
2195 DS_SIZE
* MLX4_EN_MAX_RX_FRAGS
);
2196 err
= mlx4_en_alloc_resources(priv
);
2200 #ifdef CONFIG_RFS_ACCEL
2201 INIT_LIST_HEAD(&priv
->filters
);
2202 spin_lock_init(&priv
->filters_lock
);
2205 /* Initialize time stamping config */
2206 priv
->hwtstamp_config
.flags
= 0;
2207 priv
->hwtstamp_config
.tx_type
= HWTSTAMP_TX_OFF
;
2208 priv
->hwtstamp_config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2210 /* Allocate page for receive rings */
2211 err
= mlx4_alloc_hwq_res(mdev
->dev
, &priv
->res
,
2212 MLX4_EN_PAGE_SIZE
, MLX4_EN_PAGE_SIZE
);
2214 en_err(priv
, "Failed to allocate page for rx qps\n");
2217 priv
->allocated
= 1;
2220 * Initialize netdev entry points
2222 if (mlx4_is_master(priv
->mdev
->dev
))
2223 dev
->netdev_ops
= &mlx4_netdev_ops_master
;
2225 dev
->netdev_ops
= &mlx4_netdev_ops
;
2226 dev
->watchdog_timeo
= MLX4_EN_WATCHDOG_TIMEOUT
;
2227 netif_set_real_num_tx_queues(dev
, priv
->tx_ring_num
);
2228 netif_set_real_num_rx_queues(dev
, priv
->rx_ring_num
);
2230 SET_ETHTOOL_OPS(dev
, &mlx4_en_ethtool_ops
);
2233 * Set driver features
2235 dev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
2236 if (mdev
->LSO_support
)
2237 dev
->hw_features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
2239 dev
->vlan_features
= dev
->hw_features
;
2241 dev
->hw_features
|= NETIF_F_RXCSUM
| NETIF_F_RXHASH
;
2242 dev
->features
= dev
->hw_features
| NETIF_F_HIGHDMA
|
2243 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
|
2244 NETIF_F_HW_VLAN_CTAG_FILTER
;
2245 dev
->hw_features
|= NETIF_F_LOOPBACK
;
2247 if (mdev
->dev
->caps
.steering_mode
==
2248 MLX4_STEERING_MODE_DEVICE_MANAGED
)
2249 dev
->hw_features
|= NETIF_F_NTUPLE
;
2251 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
2252 dev
->priv_flags
|= IFF_UNICAST_FLT
;
2254 mdev
->pndev
[port
] = dev
;
2256 netif_carrier_off(dev
);
2257 err
= register_netdev(dev
);
2259 en_err(priv
, "Netdev registration failed for port %d\n", port
);
2262 priv
->registered
= 1;
2264 en_warn(priv
, "Using %d TX rings\n", prof
->tx_ring_num
);
2265 en_warn(priv
, "Using %d RX rings\n", prof
->rx_ring_num
);
2267 mlx4_en_update_loopback_state(priv
->dev
, priv
->dev
->features
);
2269 /* Configure port */
2270 mlx4_en_calc_rx_buf(dev
);
2271 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
2272 priv
->rx_skb_size
+ ETH_FCS_LEN
,
2273 prof
->tx_pause
, prof
->tx_ppp
,
2274 prof
->rx_pause
, prof
->rx_ppp
);
2276 en_err(priv
, "Failed setting port general configurations "
2277 "for port %d, with error %d\n", priv
->port
, err
);
2282 en_warn(priv
, "Initializing port\n");
2283 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
2285 en_err(priv
, "Failed Initializing port\n");
2288 mlx4_en_set_default_moderation(priv
);
2289 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
2291 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
2292 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
2293 SERVICE_TASK_DELAY
);
2298 mlx4_en_destroy_netdev(dev
);