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>
43 #include <linux/mlx4/driver.h>
44 #include <linux/mlx4/device.h>
45 #include <linux/mlx4/cmd.h>
46 #include <linux/mlx4/cq.h>
51 int mlx4_en_setup_tc(struct net_device
*dev
, u8 up
)
53 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
55 unsigned int offset
= 0;
57 if (up
&& up
!= MLX4_EN_NUM_UP
)
60 netdev_set_num_tc(dev
, up
);
62 /* Partition Tx queues evenly amongst UP's */
63 for (i
= 0; i
< up
; i
++) {
64 netdev_set_tc_queue(dev
, i
, priv
->num_tx_rings_p_up
, offset
);
65 offset
+= priv
->num_tx_rings_p_up
;
71 #ifdef CONFIG_NET_RX_BUSY_POLL
72 /* must be called with local_bh_disable()d */
73 static int mlx4_en_low_latency_recv(struct napi_struct
*napi
)
75 struct mlx4_en_cq
*cq
= container_of(napi
, struct mlx4_en_cq
, napi
);
76 struct net_device
*dev
= cq
->dev
;
77 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
78 struct mlx4_en_rx_ring
*rx_ring
= &priv
->rx_ring
[cq
->ring
];
82 return LL_FLUSH_FAILED
;
84 if (!mlx4_en_cq_lock_poll(cq
))
87 done
= mlx4_en_process_rx_cq(dev
, cq
, 4);
89 rx_ring
->cleaned
+= done
;
93 mlx4_en_cq_unlock_poll(cq
);
97 #endif /* CONFIG_NET_RX_BUSY_POLL */
99 #ifdef CONFIG_RFS_ACCEL
101 struct mlx4_en_filter
{
102 struct list_head next
;
103 struct work_struct work
;
111 struct mlx4_en_priv
*priv
;
112 u32 flow_id
; /* RFS infrastructure id */
113 int id
; /* mlx4_en driver id */
114 u64 reg_id
; /* Flow steering API id */
115 u8 activated
; /* Used to prevent expiry before filter
118 struct hlist_node filter_chain
;
121 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
);
123 static void mlx4_en_filter_work(struct work_struct
*work
)
125 struct mlx4_en_filter
*filter
= container_of(work
,
126 struct mlx4_en_filter
,
128 struct mlx4_en_priv
*priv
= filter
->priv
;
129 struct mlx4_spec_list spec_tcp
= {
130 .id
= MLX4_NET_TRANS_RULE_ID_TCP
,
133 .dst_port
= filter
->dst_port
,
134 .dst_port_msk
= (__force __be16
)-1,
135 .src_port
= filter
->src_port
,
136 .src_port_msk
= (__force __be16
)-1,
140 struct mlx4_spec_list spec_ip
= {
141 .id
= MLX4_NET_TRANS_RULE_ID_IPV4
,
144 .dst_ip
= filter
->dst_ip
,
145 .dst_ip_msk
= (__force __be32
)-1,
146 .src_ip
= filter
->src_ip
,
147 .src_ip_msk
= (__force __be32
)-1,
151 struct mlx4_spec_list spec_eth
= {
152 .id
= MLX4_NET_TRANS_RULE_ID_ETH
,
154 struct mlx4_net_trans_rule rule
= {
155 .list
= LIST_HEAD_INIT(rule
.list
),
156 .queue_mode
= MLX4_NET_TRANS_Q_LIFO
,
159 .promisc_mode
= MLX4_FS_REGULAR
,
161 .priority
= MLX4_DOMAIN_RFS
,
164 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
166 list_add_tail(&spec_eth
.list
, &rule
.list
);
167 list_add_tail(&spec_ip
.list
, &rule
.list
);
168 list_add_tail(&spec_tcp
.list
, &rule
.list
);
170 rule
.qpn
= priv
->rss_map
.qps
[filter
->rxq_index
].qpn
;
171 memcpy(spec_eth
.eth
.dst_mac
, priv
->dev
->dev_addr
, ETH_ALEN
);
172 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
174 filter
->activated
= 0;
176 if (filter
->reg_id
) {
177 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
178 if (rc
&& rc
!= -ENOENT
)
179 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
182 rc
= mlx4_flow_attach(priv
->mdev
->dev
, &rule
, &filter
->reg_id
);
184 en_err(priv
, "Error attaching flow. err = %d\n", rc
);
186 mlx4_en_filter_rfs_expire(priv
);
188 filter
->activated
= 1;
191 static inline struct hlist_head
*
192 filter_hash_bucket(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
193 __be16 src_port
, __be16 dst_port
)
198 l
= (__force
unsigned long)src_port
|
199 ((__force
unsigned long)dst_port
<< 2);
200 l
^= (__force
unsigned long)(src_ip
^ dst_ip
);
202 bucket_idx
= hash_long(l
, MLX4_EN_FILTER_HASH_SHIFT
);
204 return &priv
->filter_hash
[bucket_idx
];
207 static struct mlx4_en_filter
*
208 mlx4_en_filter_alloc(struct mlx4_en_priv
*priv
, int rxq_index
, __be32 src_ip
,
209 __be32 dst_ip
, __be16 src_port
, __be16 dst_port
,
212 struct mlx4_en_filter
*filter
= NULL
;
214 filter
= kzalloc(sizeof(struct mlx4_en_filter
), GFP_ATOMIC
);
219 filter
->rxq_index
= rxq_index
;
220 INIT_WORK(&filter
->work
, mlx4_en_filter_work
);
222 filter
->src_ip
= src_ip
;
223 filter
->dst_ip
= dst_ip
;
224 filter
->src_port
= src_port
;
225 filter
->dst_port
= dst_port
;
227 filter
->flow_id
= flow_id
;
229 filter
->id
= priv
->last_filter_id
++ % RPS_NO_FILTER
;
231 list_add_tail(&filter
->next
, &priv
->filters
);
232 hlist_add_head(&filter
->filter_chain
,
233 filter_hash_bucket(priv
, src_ip
, dst_ip
, src_port
,
239 static void mlx4_en_filter_free(struct mlx4_en_filter
*filter
)
241 struct mlx4_en_priv
*priv
= filter
->priv
;
244 list_del(&filter
->next
);
246 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
247 if (rc
&& rc
!= -ENOENT
)
248 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
253 static inline struct mlx4_en_filter
*
254 mlx4_en_filter_find(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
255 __be16 src_port
, __be16 dst_port
)
257 struct mlx4_en_filter
*filter
;
258 struct mlx4_en_filter
*ret
= NULL
;
260 hlist_for_each_entry(filter
,
261 filter_hash_bucket(priv
, src_ip
, dst_ip
,
264 if (filter
->src_ip
== src_ip
&&
265 filter
->dst_ip
== dst_ip
&&
266 filter
->src_port
== src_port
&&
267 filter
->dst_port
== dst_port
) {
277 mlx4_en_filter_rfs(struct net_device
*net_dev
, const struct sk_buff
*skb
,
278 u16 rxq_index
, u32 flow_id
)
280 struct mlx4_en_priv
*priv
= netdev_priv(net_dev
);
281 struct mlx4_en_filter
*filter
;
282 const struct iphdr
*ip
;
288 int nhoff
= skb_network_offset(skb
);
291 if (skb
->protocol
!= htons(ETH_P_IP
))
292 return -EPROTONOSUPPORT
;
294 ip
= (const struct iphdr
*)(skb
->data
+ nhoff
);
295 if (ip_is_fragment(ip
))
296 return -EPROTONOSUPPORT
;
298 ports
= (const __be16
*)(skb
->data
+ nhoff
+ 4 * ip
->ihl
);
305 if (ip
->protocol
!= IPPROTO_TCP
)
306 return -EPROTONOSUPPORT
;
308 spin_lock_bh(&priv
->filters_lock
);
309 filter
= mlx4_en_filter_find(priv
, src_ip
, dst_ip
, src_port
, dst_port
);
311 if (filter
->rxq_index
== rxq_index
)
314 filter
->rxq_index
= rxq_index
;
316 filter
= mlx4_en_filter_alloc(priv
, rxq_index
,
318 src_port
, dst_port
, flow_id
);
325 queue_work(priv
->mdev
->workqueue
, &filter
->work
);
330 spin_unlock_bh(&priv
->filters_lock
);
335 void mlx4_en_cleanup_filters(struct mlx4_en_priv
*priv
,
336 struct mlx4_en_rx_ring
*rx_ring
)
338 struct mlx4_en_filter
*filter
, *tmp
;
341 spin_lock_bh(&priv
->filters_lock
);
342 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
343 list_move(&filter
->next
, &del_list
);
344 hlist_del(&filter
->filter_chain
);
346 spin_unlock_bh(&priv
->filters_lock
);
348 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
) {
349 cancel_work_sync(&filter
->work
);
350 mlx4_en_filter_free(filter
);
354 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
)
356 struct mlx4_en_filter
*filter
= NULL
, *tmp
, *last_filter
= NULL
;
360 spin_lock_bh(&priv
->filters_lock
);
361 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
362 if (i
> MLX4_EN_FILTER_EXPIRY_QUOTA
)
365 if (filter
->activated
&&
366 !work_pending(&filter
->work
) &&
367 rps_may_expire_flow(priv
->dev
,
368 filter
->rxq_index
, filter
->flow_id
,
370 list_move(&filter
->next
, &del_list
);
371 hlist_del(&filter
->filter_chain
);
373 last_filter
= filter
;
378 if (last_filter
&& (&last_filter
->next
!= priv
->filters
.next
))
379 list_move(&priv
->filters
, &last_filter
->next
);
381 spin_unlock_bh(&priv
->filters_lock
);
383 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
)
384 mlx4_en_filter_free(filter
);
388 static int mlx4_en_vlan_rx_add_vid(struct net_device
*dev
,
389 __be16 proto
, u16 vid
)
391 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
392 struct mlx4_en_dev
*mdev
= priv
->mdev
;
396 en_dbg(HW
, priv
, "adding VLAN:%d\n", vid
);
398 set_bit(vid
, priv
->active_vlans
);
400 /* Add VID to port VLAN filter */
401 mutex_lock(&mdev
->state_lock
);
402 if (mdev
->device_up
&& priv
->port_up
) {
403 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
405 en_err(priv
, "Failed configuring VLAN filter\n");
407 if (mlx4_register_vlan(mdev
->dev
, priv
->port
, vid
, &idx
))
408 en_dbg(HW
, priv
, "failed adding vlan %d\n", vid
);
409 mutex_unlock(&mdev
->state_lock
);
414 static int mlx4_en_vlan_rx_kill_vid(struct net_device
*dev
,
415 __be16 proto
, u16 vid
)
417 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
418 struct mlx4_en_dev
*mdev
= priv
->mdev
;
422 en_dbg(HW
, priv
, "Killing VID:%d\n", vid
);
424 clear_bit(vid
, priv
->active_vlans
);
426 /* Remove VID from port VLAN filter */
427 mutex_lock(&mdev
->state_lock
);
428 if (!mlx4_find_cached_vlan(mdev
->dev
, priv
->port
, vid
, &idx
))
429 mlx4_unregister_vlan(mdev
->dev
, priv
->port
, idx
);
431 en_dbg(HW
, priv
, "could not find vid %d in cache\n", vid
);
433 if (mdev
->device_up
&& priv
->port_up
) {
434 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
436 en_err(priv
, "Failed configuring VLAN filter\n");
438 mutex_unlock(&mdev
->state_lock
);
443 static void mlx4_en_u64_to_mac(unsigned char dst_mac
[ETH_ALEN
+ 2], u64 src_mac
)
446 for (i
= ETH_ALEN
- 1; i
>= 0; --i
) {
447 dst_mac
[i
] = src_mac
& 0xff;
450 memset(&dst_mac
[ETH_ALEN
], 0, 2);
453 static int mlx4_en_uc_steer_add(struct mlx4_en_priv
*priv
,
454 unsigned char *mac
, int *qpn
, u64
*reg_id
)
456 struct mlx4_en_dev
*mdev
= priv
->mdev
;
457 struct mlx4_dev
*dev
= mdev
->dev
;
460 switch (dev
->caps
.steering_mode
) {
461 case MLX4_STEERING_MODE_B0
: {
466 memcpy(&gid
[10], mac
, ETH_ALEN
);
469 err
= mlx4_unicast_attach(dev
, &qp
, gid
, 0, MLX4_PROT_ETH
);
472 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
473 struct mlx4_spec_list spec_eth
= { {NULL
} };
474 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
476 struct mlx4_net_trans_rule rule
= {
477 .queue_mode
= MLX4_NET_TRANS_Q_FIFO
,
480 .promisc_mode
= MLX4_FS_REGULAR
,
481 .priority
= MLX4_DOMAIN_NIC
,
484 rule
.port
= priv
->port
;
486 INIT_LIST_HEAD(&rule
.list
);
488 spec_eth
.id
= MLX4_NET_TRANS_RULE_ID_ETH
;
489 memcpy(spec_eth
.eth
.dst_mac
, mac
, ETH_ALEN
);
490 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
491 list_add_tail(&spec_eth
.list
, &rule
.list
);
493 err
= mlx4_flow_attach(dev
, &rule
, reg_id
);
500 en_warn(priv
, "Failed Attaching Unicast\n");
505 static void mlx4_en_uc_steer_release(struct mlx4_en_priv
*priv
,
506 unsigned char *mac
, int qpn
, u64 reg_id
)
508 struct mlx4_en_dev
*mdev
= priv
->mdev
;
509 struct mlx4_dev
*dev
= mdev
->dev
;
511 switch (dev
->caps
.steering_mode
) {
512 case MLX4_STEERING_MODE_B0
: {
517 memcpy(&gid
[10], mac
, ETH_ALEN
);
520 mlx4_unicast_detach(dev
, &qp
, gid
, MLX4_PROT_ETH
);
523 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
524 mlx4_flow_detach(dev
, reg_id
);
528 en_err(priv
, "Invalid steering mode.\n");
532 static int mlx4_en_get_qp(struct mlx4_en_priv
*priv
)
534 struct mlx4_en_dev
*mdev
= priv
->mdev
;
535 struct mlx4_dev
*dev
= mdev
->dev
;
536 struct mlx4_mac_entry
*entry
;
540 int *qpn
= &priv
->base_qpn
;
541 u64 mac
= mlx4_en_mac_to_u64(priv
->dev
->dev_addr
);
543 en_dbg(DRV
, priv
, "Registering MAC: %pM for adding\n",
544 priv
->dev
->dev_addr
);
545 index
= mlx4_register_mac(dev
, priv
->port
, mac
);
548 en_err(priv
, "Failed adding MAC: %pM\n",
549 priv
->dev
->dev_addr
);
553 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
554 int base_qpn
= mlx4_get_base_qpn(dev
, priv
->port
);
555 *qpn
= base_qpn
+ index
;
559 err
= mlx4_qp_reserve_range(dev
, 1, 1, qpn
);
560 en_dbg(DRV
, priv
, "Reserved qp %d\n", *qpn
);
562 en_err(priv
, "Failed to reserve qp for mac registration\n");
566 err
= mlx4_en_uc_steer_add(priv
, priv
->dev
->dev_addr
, qpn
, ®_id
);
570 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
575 memcpy(entry
->mac
, priv
->dev
->dev_addr
, sizeof(entry
->mac
));
576 entry
->reg_id
= reg_id
;
578 hlist_add_head_rcu(&entry
->hlist
,
579 &priv
->mac_hash
[entry
->mac
[MLX4_EN_MAC_HASH_IDX
]]);
584 mlx4_en_uc_steer_release(priv
, priv
->dev
->dev_addr
, *qpn
, reg_id
);
587 mlx4_qp_release_range(dev
, *qpn
, 1);
590 mlx4_unregister_mac(dev
, priv
->port
, mac
);
594 static void mlx4_en_put_qp(struct mlx4_en_priv
*priv
)
596 struct mlx4_en_dev
*mdev
= priv
->mdev
;
597 struct mlx4_dev
*dev
= mdev
->dev
;
598 int qpn
= priv
->base_qpn
;
601 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
602 mac
= mlx4_en_mac_to_u64(priv
->dev
->dev_addr
);
603 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
604 priv
->dev
->dev_addr
);
605 mlx4_unregister_mac(dev
, priv
->port
, mac
);
607 struct mlx4_mac_entry
*entry
;
608 struct hlist_node
*tmp
;
609 struct hlist_head
*bucket
;
612 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
613 bucket
= &priv
->mac_hash
[i
];
614 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
615 mac
= mlx4_en_mac_to_u64(entry
->mac
);
616 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
618 mlx4_en_uc_steer_release(priv
, entry
->mac
,
621 mlx4_unregister_mac(dev
, priv
->port
, mac
);
622 hlist_del_rcu(&entry
->hlist
);
623 kfree_rcu(entry
, rcu
);
627 en_dbg(DRV
, priv
, "Releasing qp: port %d, qpn %d\n",
629 mlx4_qp_release_range(dev
, qpn
, 1);
630 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
634 static int mlx4_en_replace_mac(struct mlx4_en_priv
*priv
, int qpn
,
635 unsigned char *new_mac
, unsigned char *prev_mac
)
637 struct mlx4_en_dev
*mdev
= priv
->mdev
;
638 struct mlx4_dev
*dev
= mdev
->dev
;
640 u64 new_mac_u64
= mlx4_en_mac_to_u64(new_mac
);
642 if (dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
) {
643 struct hlist_head
*bucket
;
644 unsigned int mac_hash
;
645 struct mlx4_mac_entry
*entry
;
646 struct hlist_node
*tmp
;
647 u64 prev_mac_u64
= mlx4_en_mac_to_u64(prev_mac
);
649 bucket
= &priv
->mac_hash
[prev_mac
[MLX4_EN_MAC_HASH_IDX
]];
650 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
651 if (ether_addr_equal_64bits(entry
->mac
, prev_mac
)) {
652 mlx4_en_uc_steer_release(priv
, entry
->mac
,
654 mlx4_unregister_mac(dev
, priv
->port
,
656 hlist_del_rcu(&entry
->hlist
);
658 memcpy(entry
->mac
, new_mac
, ETH_ALEN
);
660 mac_hash
= new_mac
[MLX4_EN_MAC_HASH_IDX
];
661 hlist_add_head_rcu(&entry
->hlist
,
662 &priv
->mac_hash
[mac_hash
]);
663 mlx4_register_mac(dev
, priv
->port
, new_mac_u64
);
664 err
= mlx4_en_uc_steer_add(priv
, new_mac
,
673 return __mlx4_replace_mac(dev
, priv
->port
, qpn
, new_mac_u64
);
676 u64
mlx4_en_mac_to_u64(u8
*addr
)
681 for (i
= 0; i
< ETH_ALEN
; i
++) {
688 static int mlx4_en_do_set_mac(struct mlx4_en_priv
*priv
)
693 /* Remove old MAC and insert the new one */
694 err
= mlx4_en_replace_mac(priv
, priv
->base_qpn
,
695 priv
->dev
->dev_addr
, priv
->prev_mac
);
697 en_err(priv
, "Failed changing HW MAC address\n");
698 memcpy(priv
->prev_mac
, priv
->dev
->dev_addr
,
699 sizeof(priv
->prev_mac
));
701 en_dbg(HW
, priv
, "Port is down while registering mac, exiting...\n");
706 static int mlx4_en_set_mac(struct net_device
*dev
, void *addr
)
708 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
709 struct mlx4_en_dev
*mdev
= priv
->mdev
;
710 struct sockaddr
*saddr
= addr
;
713 if (!is_valid_ether_addr(saddr
->sa_data
))
714 return -EADDRNOTAVAIL
;
716 memcpy(dev
->dev_addr
, saddr
->sa_data
, ETH_ALEN
);
718 mutex_lock(&mdev
->state_lock
);
719 err
= mlx4_en_do_set_mac(priv
);
720 mutex_unlock(&mdev
->state_lock
);
725 static void mlx4_en_clear_list(struct net_device
*dev
)
727 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
728 struct mlx4_en_mc_list
*tmp
, *mc_to_del
;
730 list_for_each_entry_safe(mc_to_del
, tmp
, &priv
->mc_list
, list
) {
731 list_del(&mc_to_del
->list
);
736 static void mlx4_en_cache_mclist(struct net_device
*dev
)
738 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
739 struct netdev_hw_addr
*ha
;
740 struct mlx4_en_mc_list
*tmp
;
742 mlx4_en_clear_list(dev
);
743 netdev_for_each_mc_addr(ha
, dev
) {
744 tmp
= kzalloc(sizeof(struct mlx4_en_mc_list
), GFP_ATOMIC
);
746 mlx4_en_clear_list(dev
);
749 memcpy(tmp
->addr
, ha
->addr
, ETH_ALEN
);
750 list_add_tail(&tmp
->list
, &priv
->mc_list
);
754 static void update_mclist_flags(struct mlx4_en_priv
*priv
,
755 struct list_head
*dst
,
756 struct list_head
*src
)
758 struct mlx4_en_mc_list
*dst_tmp
, *src_tmp
, *new_mc
;
761 /* Find all the entries that should be removed from dst,
762 * These are the entries that are not found in src
764 list_for_each_entry(dst_tmp
, dst
, list
) {
766 list_for_each_entry(src_tmp
, src
, list
) {
767 if (!memcmp(dst_tmp
->addr
, src_tmp
->addr
, ETH_ALEN
)) {
773 dst_tmp
->action
= MCLIST_REM
;
776 /* Add entries that exist in src but not in dst
777 * mark them as need to add
779 list_for_each_entry(src_tmp
, src
, list
) {
781 list_for_each_entry(dst_tmp
, dst
, list
) {
782 if (!memcmp(dst_tmp
->addr
, src_tmp
->addr
, ETH_ALEN
)) {
783 dst_tmp
->action
= MCLIST_NONE
;
789 new_mc
= kmemdup(src_tmp
,
790 sizeof(struct mlx4_en_mc_list
),
795 new_mc
->action
= MCLIST_ADD
;
796 list_add_tail(&new_mc
->list
, dst
);
801 static void mlx4_en_set_rx_mode(struct net_device
*dev
)
803 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
808 queue_work(priv
->mdev
->workqueue
, &priv
->rx_mode_task
);
811 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv
*priv
,
812 struct mlx4_en_dev
*mdev
)
816 if (!(priv
->flags
& MLX4_EN_FLAG_PROMISC
)) {
817 if (netif_msg_rx_status(priv
))
818 en_warn(priv
, "Entering promiscuous mode\n");
819 priv
->flags
|= MLX4_EN_FLAG_PROMISC
;
821 /* Enable promiscouos mode */
822 switch (mdev
->dev
->caps
.steering_mode
) {
823 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
824 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
827 MLX4_FS_ALL_DEFAULT
);
829 en_err(priv
, "Failed enabling promiscuous mode\n");
830 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
833 case MLX4_STEERING_MODE_B0
:
834 err
= mlx4_unicast_promisc_add(mdev
->dev
,
838 en_err(priv
, "Failed enabling unicast promiscuous mode\n");
840 /* Add the default qp number as multicast
843 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
844 err
= mlx4_multicast_promisc_add(mdev
->dev
,
848 en_err(priv
, "Failed enabling multicast promiscuous mode\n");
849 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
853 case MLX4_STEERING_MODE_A0
:
854 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
859 en_err(priv
, "Failed enabling promiscuous mode\n");
863 /* Disable port multicast filter (unconditionally) */
864 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
865 0, MLX4_MCAST_DISABLE
);
867 en_err(priv
, "Failed disabling multicast filter\n");
869 /* Disable port VLAN filter */
870 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
872 en_err(priv
, "Failed disabling VLAN filter\n");
876 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv
*priv
,
877 struct mlx4_en_dev
*mdev
)
881 if (netif_msg_rx_status(priv
))
882 en_warn(priv
, "Leaving promiscuous mode\n");
883 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
885 /* Disable promiscouos mode */
886 switch (mdev
->dev
->caps
.steering_mode
) {
887 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
888 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
890 MLX4_FS_ALL_DEFAULT
);
892 en_err(priv
, "Failed disabling promiscuous mode\n");
893 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
896 case MLX4_STEERING_MODE_B0
:
897 err
= mlx4_unicast_promisc_remove(mdev
->dev
,
901 en_err(priv
, "Failed disabling unicast promiscuous mode\n");
902 /* Disable Multicast promisc */
903 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
904 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
908 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
909 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
913 case MLX4_STEERING_MODE_A0
:
914 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
918 en_err(priv
, "Failed disabling promiscuous mode\n");
922 /* Enable port VLAN filter */
923 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
925 en_err(priv
, "Failed enabling VLAN filter\n");
928 static void mlx4_en_do_multicast(struct mlx4_en_priv
*priv
,
929 struct net_device
*dev
,
930 struct mlx4_en_dev
*mdev
)
932 struct mlx4_en_mc_list
*mclist
, *tmp
;
934 u8 mc_list
[16] = {0};
937 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
938 if (dev
->flags
& IFF_ALLMULTI
) {
939 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
940 0, MLX4_MCAST_DISABLE
);
942 en_err(priv
, "Failed disabling multicast filter\n");
944 /* Add the default qp number as multicast promisc */
945 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
946 switch (mdev
->dev
->caps
.steering_mode
) {
947 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
948 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
954 case MLX4_STEERING_MODE_B0
:
955 err
= mlx4_multicast_promisc_add(mdev
->dev
,
960 case MLX4_STEERING_MODE_A0
:
964 en_err(priv
, "Failed entering multicast promisc mode\n");
965 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
968 /* Disable Multicast promisc */
969 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
970 switch (mdev
->dev
->caps
.steering_mode
) {
971 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
972 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
977 case MLX4_STEERING_MODE_B0
:
978 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
983 case MLX4_STEERING_MODE_A0
:
987 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
988 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
991 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
992 0, MLX4_MCAST_DISABLE
);
994 en_err(priv
, "Failed disabling multicast filter\n");
996 /* Flush mcast filter and init it with broadcast address */
997 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, ETH_BCAST
,
998 1, MLX4_MCAST_CONFIG
);
1000 /* Update multicast list - we cache all addresses so they won't
1001 * change while HW is updated holding the command semaphor */
1002 netif_addr_lock_bh(dev
);
1003 mlx4_en_cache_mclist(dev
);
1004 netif_addr_unlock_bh(dev
);
1005 list_for_each_entry(mclist
, &priv
->mc_list
, list
) {
1006 mcast_addr
= mlx4_en_mac_to_u64(mclist
->addr
);
1007 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
,
1008 mcast_addr
, 0, MLX4_MCAST_CONFIG
);
1010 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
1011 0, MLX4_MCAST_ENABLE
);
1013 en_err(priv
, "Failed enabling multicast filter\n");
1015 update_mclist_flags(priv
, &priv
->curr_list
, &priv
->mc_list
);
1016 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
1017 if (mclist
->action
== MCLIST_REM
) {
1018 /* detach this address and delete from list */
1019 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1020 mc_list
[5] = priv
->port
;
1021 err
= mlx4_multicast_detach(mdev
->dev
,
1022 &priv
->rss_map
.indir_qp
,
1027 en_err(priv
, "Fail to detach multicast address\n");
1029 /* remove from list */
1030 list_del(&mclist
->list
);
1032 } else if (mclist
->action
== MCLIST_ADD
) {
1033 /* attach the address */
1034 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1035 /* needed for B0 steering support */
1036 mc_list
[5] = priv
->port
;
1037 err
= mlx4_multicast_attach(mdev
->dev
,
1038 &priv
->rss_map
.indir_qp
,
1044 en_err(priv
, "Fail to attach multicast address\n");
1051 static void mlx4_en_do_uc_filter(struct mlx4_en_priv
*priv
,
1052 struct net_device
*dev
,
1053 struct mlx4_en_dev
*mdev
)
1055 struct netdev_hw_addr
*ha
;
1056 struct mlx4_mac_entry
*entry
;
1057 struct hlist_node
*tmp
;
1061 struct hlist_head
*bucket
;
1066 /* Note that we do not need to protect our mac_hash traversal with rcu,
1067 * since all modification code is protected by mdev->state_lock
1070 /* find what to remove */
1071 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1072 bucket
= &priv
->mac_hash
[i
];
1073 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1075 netdev_for_each_uc_addr(ha
, dev
) {
1076 if (ether_addr_equal_64bits(entry
->mac
,
1083 /* MAC address of the port is not in uc list */
1084 if (ether_addr_equal_64bits(entry
->mac
, dev
->dev_addr
))
1088 mac
= mlx4_en_mac_to_u64(entry
->mac
);
1089 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1092 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1094 hlist_del_rcu(&entry
->hlist
);
1095 kfree_rcu(entry
, rcu
);
1096 en_dbg(DRV
, priv
, "Removed MAC %pM on port:%d\n",
1097 entry
->mac
, priv
->port
);
1103 /* if we didn't remove anything, there is no use in trying to add
1104 * again once we are in a forced promisc mode state
1106 if ((priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) && 0 == removed
)
1109 prev_flags
= priv
->flags
;
1110 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
1112 /* find what to add */
1113 netdev_for_each_uc_addr(ha
, dev
) {
1115 bucket
= &priv
->mac_hash
[ha
->addr
[MLX4_EN_MAC_HASH_IDX
]];
1116 hlist_for_each_entry(entry
, bucket
, hlist
) {
1117 if (ether_addr_equal_64bits(entry
->mac
, ha
->addr
)) {
1124 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1126 en_err(priv
, "Failed adding MAC %pM on port:%d (out of memory)\n",
1127 ha
->addr
, priv
->port
);
1128 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1131 mac
= mlx4_en_mac_to_u64(ha
->addr
);
1132 memcpy(entry
->mac
, ha
->addr
, ETH_ALEN
);
1133 err
= mlx4_register_mac(mdev
->dev
, priv
->port
, mac
);
1135 en_err(priv
, "Failed registering MAC %pM on port %d: %d\n",
1136 ha
->addr
, priv
->port
, err
);
1138 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1141 err
= mlx4_en_uc_steer_add(priv
, ha
->addr
,
1145 en_err(priv
, "Failed adding MAC %pM on port %d: %d\n",
1146 ha
->addr
, priv
->port
, err
);
1147 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1149 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1152 unsigned int mac_hash
;
1153 en_dbg(DRV
, priv
, "Added MAC %pM on port:%d\n",
1154 ha
->addr
, priv
->port
);
1155 mac_hash
= ha
->addr
[MLX4_EN_MAC_HASH_IDX
];
1156 bucket
= &priv
->mac_hash
[mac_hash
];
1157 hlist_add_head_rcu(&entry
->hlist
, bucket
);
1162 if (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1163 en_warn(priv
, "Forcing promiscuous mode on port:%d\n",
1165 } else if (prev_flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1166 en_warn(priv
, "Stop forcing promiscuous mode on port:%d\n",
1171 static void mlx4_en_do_set_rx_mode(struct work_struct
*work
)
1173 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1175 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1176 struct net_device
*dev
= priv
->dev
;
1178 mutex_lock(&mdev
->state_lock
);
1179 if (!mdev
->device_up
) {
1180 en_dbg(HW
, priv
, "Card is not up, ignoring rx mode change.\n");
1183 if (!priv
->port_up
) {
1184 en_dbg(HW
, priv
, "Port is down, ignoring rx mode change.\n");
1188 if (!netif_carrier_ok(dev
)) {
1189 if (!mlx4_en_QUERY_PORT(mdev
, priv
->port
)) {
1190 if (priv
->port_state
.link_state
) {
1191 priv
->last_link_state
= MLX4_DEV_EVENT_PORT_UP
;
1192 netif_carrier_on(dev
);
1193 en_dbg(LINK
, priv
, "Link Up\n");
1198 if (dev
->priv_flags
& IFF_UNICAST_FLT
)
1199 mlx4_en_do_uc_filter(priv
, dev
, mdev
);
1201 /* Promsicuous mode: disable all filters */
1202 if ((dev
->flags
& IFF_PROMISC
) ||
1203 (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
)) {
1204 mlx4_en_set_promisc_mode(priv
, mdev
);
1208 /* Not in promiscuous mode */
1209 if (priv
->flags
& MLX4_EN_FLAG_PROMISC
)
1210 mlx4_en_clear_promisc_mode(priv
, mdev
);
1212 mlx4_en_do_multicast(priv
, dev
, mdev
);
1214 mutex_unlock(&mdev
->state_lock
);
1217 #ifdef CONFIG_NET_POLL_CONTROLLER
1218 static void mlx4_en_netpoll(struct net_device
*dev
)
1220 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1221 struct mlx4_en_cq
*cq
;
1222 unsigned long flags
;
1225 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1226 cq
= &priv
->rx_cq
[i
];
1227 spin_lock_irqsave(&cq
->lock
, flags
);
1228 napi_synchronize(&cq
->napi
);
1229 mlx4_en_process_rx_cq(dev
, cq
, 0);
1230 spin_unlock_irqrestore(&cq
->lock
, flags
);
1235 static void mlx4_en_tx_timeout(struct net_device
*dev
)
1237 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1238 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1241 if (netif_msg_timer(priv
))
1242 en_warn(priv
, "Tx timeout called on port:%d\n", priv
->port
);
1244 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1245 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev
, i
)))
1247 en_warn(priv
, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1248 i
, priv
->tx_ring
[i
].qpn
, priv
->tx_ring
[i
].cqn
,
1249 priv
->tx_ring
[i
].cons
, priv
->tx_ring
[i
].prod
);
1252 priv
->port_stats
.tx_timeout
++;
1253 en_dbg(DRV
, priv
, "Scheduling watchdog\n");
1254 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1258 static struct net_device_stats
*mlx4_en_get_stats(struct net_device
*dev
)
1260 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1262 spin_lock_bh(&priv
->stats_lock
);
1263 memcpy(&priv
->ret_stats
, &priv
->stats
, sizeof(priv
->stats
));
1264 spin_unlock_bh(&priv
->stats_lock
);
1266 return &priv
->ret_stats
;
1269 static void mlx4_en_set_default_moderation(struct mlx4_en_priv
*priv
)
1271 struct mlx4_en_cq
*cq
;
1274 /* If we haven't received a specific coalescing setting
1275 * (module param), we set the moderation parameters as follows:
1276 * - moder_cnt is set to the number of mtu sized packets to
1277 * satisfy our coalescing target.
1278 * - moder_time is set to a fixed value.
1280 priv
->rx_frames
= MLX4_EN_RX_COAL_TARGET
;
1281 priv
->rx_usecs
= MLX4_EN_RX_COAL_TIME
;
1282 priv
->tx_frames
= MLX4_EN_TX_COAL_PKTS
;
1283 priv
->tx_usecs
= MLX4_EN_TX_COAL_TIME
;
1284 en_dbg(INTR
, priv
, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1285 priv
->dev
->mtu
, priv
->rx_frames
, priv
->rx_usecs
);
1287 /* Setup cq moderation params */
1288 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1289 cq
= &priv
->rx_cq
[i
];
1290 cq
->moder_cnt
= priv
->rx_frames
;
1291 cq
->moder_time
= priv
->rx_usecs
;
1292 priv
->last_moder_time
[i
] = MLX4_EN_AUTO_CONF
;
1293 priv
->last_moder_packets
[i
] = 0;
1294 priv
->last_moder_bytes
[i
] = 0;
1297 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1298 cq
= &priv
->tx_cq
[i
];
1299 cq
->moder_cnt
= priv
->tx_frames
;
1300 cq
->moder_time
= priv
->tx_usecs
;
1303 /* Reset auto-moderation params */
1304 priv
->pkt_rate_low
= MLX4_EN_RX_RATE_LOW
;
1305 priv
->rx_usecs_low
= MLX4_EN_RX_COAL_TIME_LOW
;
1306 priv
->pkt_rate_high
= MLX4_EN_RX_RATE_HIGH
;
1307 priv
->rx_usecs_high
= MLX4_EN_RX_COAL_TIME_HIGH
;
1308 priv
->sample_interval
= MLX4_EN_SAMPLE_INTERVAL
;
1309 priv
->adaptive_rx_coal
= 1;
1310 priv
->last_moder_jiffies
= 0;
1311 priv
->last_moder_tx_packets
= 0;
1314 static void mlx4_en_auto_moderation(struct mlx4_en_priv
*priv
)
1316 unsigned long period
= (unsigned long) (jiffies
- priv
->last_moder_jiffies
);
1317 struct mlx4_en_cq
*cq
;
1318 unsigned long packets
;
1320 unsigned long avg_pkt_size
;
1321 unsigned long rx_packets
;
1322 unsigned long rx_bytes
;
1323 unsigned long rx_pkt_diff
;
1327 if (!priv
->adaptive_rx_coal
|| period
< priv
->sample_interval
* HZ
)
1330 for (ring
= 0; ring
< priv
->rx_ring_num
; ring
++) {
1331 spin_lock_bh(&priv
->stats_lock
);
1332 rx_packets
= priv
->rx_ring
[ring
].packets
;
1333 rx_bytes
= priv
->rx_ring
[ring
].bytes
;
1334 spin_unlock_bh(&priv
->stats_lock
);
1336 rx_pkt_diff
= ((unsigned long) (rx_packets
-
1337 priv
->last_moder_packets
[ring
]));
1338 packets
= rx_pkt_diff
;
1339 rate
= packets
* HZ
/ period
;
1340 avg_pkt_size
= packets
? ((unsigned long) (rx_bytes
-
1341 priv
->last_moder_bytes
[ring
])) / packets
: 0;
1343 /* Apply auto-moderation only when packet rate
1344 * exceeds a rate that it matters */
1345 if (rate
> (MLX4_EN_RX_RATE_THRESH
/ priv
->rx_ring_num
) &&
1346 avg_pkt_size
> MLX4_EN_AVG_PKT_SMALL
) {
1347 if (rate
< priv
->pkt_rate_low
)
1348 moder_time
= priv
->rx_usecs_low
;
1349 else if (rate
> priv
->pkt_rate_high
)
1350 moder_time
= priv
->rx_usecs_high
;
1352 moder_time
= (rate
- priv
->pkt_rate_low
) *
1353 (priv
->rx_usecs_high
- priv
->rx_usecs_low
) /
1354 (priv
->pkt_rate_high
- priv
->pkt_rate_low
) +
1357 moder_time
= priv
->rx_usecs_low
;
1360 if (moder_time
!= priv
->last_moder_time
[ring
]) {
1361 priv
->last_moder_time
[ring
] = moder_time
;
1362 cq
= &priv
->rx_cq
[ring
];
1363 cq
->moder_time
= moder_time
;
1364 cq
->moder_cnt
= priv
->rx_frames
;
1365 err
= mlx4_en_set_cq_moder(priv
, cq
);
1367 en_err(priv
, "Failed modifying moderation for cq:%d\n",
1370 priv
->last_moder_packets
[ring
] = rx_packets
;
1371 priv
->last_moder_bytes
[ring
] = rx_bytes
;
1374 priv
->last_moder_jiffies
= jiffies
;
1377 static void mlx4_en_do_get_stats(struct work_struct
*work
)
1379 struct delayed_work
*delay
= to_delayed_work(work
);
1380 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1382 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1385 mutex_lock(&mdev
->state_lock
);
1386 if (mdev
->device_up
) {
1387 if (priv
->port_up
) {
1388 err
= mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 0);
1390 en_dbg(HW
, priv
, "Could not update stats\n");
1392 mlx4_en_auto_moderation(priv
);
1395 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
1397 if (mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
]) {
1398 mlx4_en_do_set_mac(priv
);
1399 mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
] = 0;
1401 mutex_unlock(&mdev
->state_lock
);
1404 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1407 static void mlx4_en_service_task(struct work_struct
*work
)
1409 struct delayed_work
*delay
= to_delayed_work(work
);
1410 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1412 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1414 mutex_lock(&mdev
->state_lock
);
1415 if (mdev
->device_up
) {
1416 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
1417 mlx4_en_ptp_overflow_check(mdev
);
1419 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
1420 SERVICE_TASK_DELAY
);
1422 mutex_unlock(&mdev
->state_lock
);
1425 static void mlx4_en_linkstate(struct work_struct
*work
)
1427 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1429 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1430 int linkstate
= priv
->link_state
;
1432 mutex_lock(&mdev
->state_lock
);
1433 /* If observable port state changed set carrier state and
1434 * report to system log */
1435 if (priv
->last_link_state
!= linkstate
) {
1436 if (linkstate
== MLX4_DEV_EVENT_PORT_DOWN
) {
1437 en_info(priv
, "Link Down\n");
1438 netif_carrier_off(priv
->dev
);
1440 en_info(priv
, "Link Up\n");
1441 netif_carrier_on(priv
->dev
);
1444 priv
->last_link_state
= linkstate
;
1445 mutex_unlock(&mdev
->state_lock
);
1449 int mlx4_en_start_port(struct net_device
*dev
)
1451 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1452 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1453 struct mlx4_en_cq
*cq
;
1454 struct mlx4_en_tx_ring
*tx_ring
;
1460 u8 mc_list
[16] = {0};
1462 if (priv
->port_up
) {
1463 en_dbg(DRV
, priv
, "start port called while port already up\n");
1467 INIT_LIST_HEAD(&priv
->mc_list
);
1468 INIT_LIST_HEAD(&priv
->curr_list
);
1469 INIT_LIST_HEAD(&priv
->ethtool_list
);
1470 memset(&priv
->ethtool_rules
[0], 0,
1471 sizeof(struct ethtool_flow_id
) * MAX_NUM_OF_FS_RULES
);
1473 /* Calculate Rx buf size */
1474 dev
->mtu
= min(dev
->mtu
, priv
->max_mtu
);
1475 mlx4_en_calc_rx_buf(dev
);
1476 en_dbg(DRV
, priv
, "Rx buf size:%d\n", priv
->rx_skb_size
);
1478 /* Configure rx cq's and rings */
1479 err
= mlx4_en_activate_rx_rings(priv
);
1481 en_err(priv
, "Failed to activate RX rings\n");
1484 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1485 cq
= &priv
->rx_cq
[i
];
1487 mlx4_en_cq_init_lock(cq
);
1489 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1491 en_err(priv
, "Failed activating Rx CQ\n");
1494 for (j
= 0; j
< cq
->size
; j
++)
1495 cq
->buf
[j
].owner_sr_opcode
= MLX4_CQE_OWNER_MASK
;
1496 err
= mlx4_en_set_cq_moder(priv
, cq
);
1498 en_err(priv
, "Failed setting cq moderation parameters");
1499 mlx4_en_deactivate_cq(priv
, cq
);
1502 mlx4_en_arm_cq(priv
, cq
);
1503 priv
->rx_ring
[i
].cqn
= cq
->mcq
.cqn
;
1508 en_dbg(DRV
, priv
, "Getting qp number for port %d\n", priv
->port
);
1509 err
= mlx4_en_get_qp(priv
);
1511 en_err(priv
, "Failed getting eth qp\n");
1514 mdev
->mac_removed
[priv
->port
] = 0;
1516 err
= mlx4_en_config_rss_steer(priv
);
1518 en_err(priv
, "Failed configuring rss steering\n");
1522 err
= mlx4_en_create_drop_qp(priv
);
1526 /* Configure tx cq's and rings */
1527 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1529 cq
= &priv
->tx_cq
[i
];
1530 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1532 en_err(priv
, "Failed allocating Tx CQ\n");
1535 err
= mlx4_en_set_cq_moder(priv
, cq
);
1537 en_err(priv
, "Failed setting cq moderation parameters");
1538 mlx4_en_deactivate_cq(priv
, cq
);
1541 en_dbg(DRV
, priv
, "Resetting index of collapsed CQ:%d to -1\n", i
);
1542 cq
->buf
->wqe_index
= cpu_to_be16(0xffff);
1544 /* Configure ring */
1545 tx_ring
= &priv
->tx_ring
[i
];
1546 err
= mlx4_en_activate_tx_ring(priv
, tx_ring
, cq
->mcq
.cqn
,
1547 i
/ priv
->num_tx_rings_p_up
);
1549 en_err(priv
, "Failed allocating Tx ring\n");
1550 mlx4_en_deactivate_cq(priv
, cq
);
1553 tx_ring
->tx_queue
= netdev_get_tx_queue(dev
, i
);
1555 /* Arm CQ for TX completions */
1556 mlx4_en_arm_cq(priv
, cq
);
1558 /* Set initial ownership of all Tx TXBBs to SW (1) */
1559 for (j
= 0; j
< tx_ring
->buf_size
; j
+= STAMP_STRIDE
)
1560 *((u32
*) (tx_ring
->buf
+ j
)) = 0xffffffff;
1564 /* Configure port */
1565 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
1566 priv
->rx_skb_size
+ ETH_FCS_LEN
,
1567 priv
->prof
->tx_pause
,
1569 priv
->prof
->rx_pause
,
1570 priv
->prof
->rx_ppp
);
1572 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
1576 /* Set default qp number */
1577 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
, priv
->port
, priv
->base_qpn
, 0);
1579 en_err(priv
, "Failed setting default qp numbers\n");
1584 en_dbg(HW
, priv
, "Initializing port\n");
1585 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
1587 en_err(priv
, "Failed Initializing port\n");
1591 /* Attach rx QP to bradcast address */
1592 memset(&mc_list
[10], 0xff, ETH_ALEN
);
1593 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1594 if (mlx4_multicast_attach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1595 priv
->port
, 0, MLX4_PROT_ETH
,
1596 &priv
->broadcast_id
))
1597 mlx4_warn(mdev
, "Failed Attaching Broadcast\n");
1599 /* Must redo promiscuous mode setup. */
1600 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
| MLX4_EN_FLAG_MC_PROMISC
);
1602 /* Schedule multicast task to populate multicast list */
1603 queue_work(mdev
->workqueue
, &priv
->rx_mode_task
);
1605 mlx4_set_stats_bitmap(mdev
->dev
, &priv
->stats_bitmap
);
1607 priv
->port_up
= true;
1608 netif_tx_start_all_queues(dev
);
1609 netif_device_attach(dev
);
1614 while (tx_index
--) {
1615 mlx4_en_deactivate_tx_ring(priv
, &priv
->tx_ring
[tx_index
]);
1616 mlx4_en_deactivate_cq(priv
, &priv
->tx_cq
[tx_index
]);
1618 mlx4_en_destroy_drop_qp(priv
);
1620 mlx4_en_release_rss_steer(priv
);
1622 mlx4_en_put_qp(priv
);
1625 mlx4_en_deactivate_cq(priv
, &priv
->rx_cq
[rx_index
]);
1626 for (i
= 0; i
< priv
->rx_ring_num
; i
++)
1627 mlx4_en_deactivate_rx_ring(priv
, &priv
->rx_ring
[i
]);
1629 return err
; /* need to close devices */
1633 void mlx4_en_stop_port(struct net_device
*dev
, int detach
)
1635 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1636 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1637 struct mlx4_en_mc_list
*mclist
, *tmp
;
1638 struct ethtool_flow_id
*flow
, *tmp_flow
;
1640 u8 mc_list
[16] = {0};
1642 if (!priv
->port_up
) {
1643 en_dbg(DRV
, priv
, "stop port called while port already down\n");
1648 mlx4_CLOSE_PORT(mdev
->dev
, priv
->port
);
1650 /* Synchronize with tx routine */
1651 netif_tx_lock_bh(dev
);
1653 netif_device_detach(dev
);
1654 netif_tx_stop_all_queues(dev
);
1655 netif_tx_unlock_bh(dev
);
1657 netif_tx_disable(dev
);
1659 /* Set port as not active */
1660 priv
->port_up
= false;
1662 /* Promsicuous mode */
1663 if (mdev
->dev
->caps
.steering_mode
==
1664 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1665 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
|
1666 MLX4_EN_FLAG_MC_PROMISC
);
1667 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1669 MLX4_FS_ALL_DEFAULT
);
1670 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1672 MLX4_FS_MC_DEFAULT
);
1673 } else if (priv
->flags
& MLX4_EN_FLAG_PROMISC
) {
1674 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
1676 /* Disable promiscouos mode */
1677 mlx4_unicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1680 /* Disable Multicast promisc */
1681 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
1682 mlx4_multicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1684 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
1688 /* Detach All multicasts */
1689 memset(&mc_list
[10], 0xff, ETH_ALEN
);
1690 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1691 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1692 MLX4_PROT_ETH
, priv
->broadcast_id
);
1693 list_for_each_entry(mclist
, &priv
->curr_list
, list
) {
1694 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1695 mc_list
[5] = priv
->port
;
1696 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
,
1697 mc_list
, MLX4_PROT_ETH
, mclist
->reg_id
);
1699 mlx4_en_clear_list(dev
);
1700 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
1701 list_del(&mclist
->list
);
1705 /* Flush multicast filter */
1706 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0, 1, MLX4_MCAST_CONFIG
);
1708 /* Remove flow steering rules for the port*/
1709 if (mdev
->dev
->caps
.steering_mode
==
1710 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1712 list_for_each_entry_safe(flow
, tmp_flow
,
1713 &priv
->ethtool_list
, list
) {
1714 mlx4_flow_detach(mdev
->dev
, flow
->id
);
1715 list_del(&flow
->list
);
1719 mlx4_en_destroy_drop_qp(priv
);
1722 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1723 mlx4_en_deactivate_tx_ring(priv
, &priv
->tx_ring
[i
]);
1724 mlx4_en_deactivate_cq(priv
, &priv
->tx_cq
[i
]);
1728 for (i
= 0; i
< priv
->tx_ring_num
; i
++)
1729 mlx4_en_free_tx_buf(dev
, &priv
->tx_ring
[i
]);
1732 mlx4_en_release_rss_steer(priv
);
1734 /* Unregister Mac address for the port */
1735 mlx4_en_put_qp(priv
);
1736 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN
))
1737 mdev
->mac_removed
[priv
->port
] = 1;
1740 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1741 struct mlx4_en_cq
*cq
= &priv
->rx_cq
[i
];
1744 while (!mlx4_en_cq_lock_napi(cq
)) {
1745 pr_info("CQ %d locked\n", i
);
1750 while (test_bit(NAPI_STATE_SCHED
, &cq
->napi
.state
))
1752 mlx4_en_deactivate_rx_ring(priv
, &priv
->rx_ring
[i
]);
1753 mlx4_en_deactivate_cq(priv
, cq
);
1757 static void mlx4_en_restart(struct work_struct
*work
)
1759 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1761 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1762 struct net_device
*dev
= priv
->dev
;
1764 en_dbg(DRV
, priv
, "Watchdog task called for port %d\n", priv
->port
);
1766 mutex_lock(&mdev
->state_lock
);
1767 if (priv
->port_up
) {
1768 mlx4_en_stop_port(dev
, 1);
1769 if (mlx4_en_start_port(dev
))
1770 en_err(priv
, "Failed restarting port %d\n", priv
->port
);
1772 mutex_unlock(&mdev
->state_lock
);
1775 static void mlx4_en_clear_stats(struct net_device
*dev
)
1777 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1778 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1781 if (mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 1))
1782 en_dbg(HW
, priv
, "Failed dumping statistics\n");
1784 memset(&priv
->stats
, 0, sizeof(priv
->stats
));
1785 memset(&priv
->pstats
, 0, sizeof(priv
->pstats
));
1786 memset(&priv
->pkstats
, 0, sizeof(priv
->pkstats
));
1787 memset(&priv
->port_stats
, 0, sizeof(priv
->port_stats
));
1789 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1790 priv
->tx_ring
[i
].bytes
= 0;
1791 priv
->tx_ring
[i
].packets
= 0;
1792 priv
->tx_ring
[i
].tx_csum
= 0;
1794 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1795 priv
->rx_ring
[i
].bytes
= 0;
1796 priv
->rx_ring
[i
].packets
= 0;
1797 priv
->rx_ring
[i
].csum_ok
= 0;
1798 priv
->rx_ring
[i
].csum_none
= 0;
1802 static int mlx4_en_open(struct net_device
*dev
)
1804 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1805 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1808 mutex_lock(&mdev
->state_lock
);
1810 if (!mdev
->device_up
) {
1811 en_err(priv
, "Cannot open - device down/disabled\n");
1816 /* Reset HW statistics and SW counters */
1817 mlx4_en_clear_stats(dev
);
1819 err
= mlx4_en_start_port(dev
);
1821 en_err(priv
, "Failed starting port:%d\n", priv
->port
);
1824 mutex_unlock(&mdev
->state_lock
);
1829 static int mlx4_en_close(struct net_device
*dev
)
1831 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1832 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1834 en_dbg(IFDOWN
, priv
, "Close port called\n");
1836 mutex_lock(&mdev
->state_lock
);
1838 mlx4_en_stop_port(dev
, 0);
1839 netif_carrier_off(dev
);
1841 mutex_unlock(&mdev
->state_lock
);
1845 void mlx4_en_free_resources(struct mlx4_en_priv
*priv
)
1849 #ifdef CONFIG_RFS_ACCEL
1850 free_irq_cpu_rmap(priv
->dev
->rx_cpu_rmap
);
1851 priv
->dev
->rx_cpu_rmap
= NULL
;
1854 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1855 if (priv
->tx_ring
[i
].tx_info
)
1856 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
1857 if (priv
->tx_cq
[i
].buf
)
1858 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
1861 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1862 if (priv
->rx_ring
[i
].rx_info
)
1863 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
1864 priv
->prof
->rx_ring_size
, priv
->stride
);
1865 if (priv
->rx_cq
[i
].buf
)
1866 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
1869 if (priv
->base_tx_qpn
) {
1870 mlx4_qp_release_range(priv
->mdev
->dev
, priv
->base_tx_qpn
, priv
->tx_ring_num
);
1871 priv
->base_tx_qpn
= 0;
1875 int mlx4_en_alloc_resources(struct mlx4_en_priv
*priv
)
1877 struct mlx4_en_port_profile
*prof
= priv
->prof
;
1881 err
= mlx4_qp_reserve_range(priv
->mdev
->dev
, priv
->tx_ring_num
, 256, &priv
->base_tx_qpn
);
1883 en_err(priv
, "failed reserving range for TX rings\n");
1887 /* Create tx Rings */
1888 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1889 if (mlx4_en_create_cq(priv
, &priv
->tx_cq
[i
],
1890 prof
->tx_ring_size
, i
, TX
))
1893 if (mlx4_en_create_tx_ring(priv
, &priv
->tx_ring
[i
], priv
->base_tx_qpn
+ i
,
1894 prof
->tx_ring_size
, TXBB_SIZE
))
1898 /* Create rx Rings */
1899 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1900 if (mlx4_en_create_cq(priv
, &priv
->rx_cq
[i
],
1901 prof
->rx_ring_size
, i
, RX
))
1904 if (mlx4_en_create_rx_ring(priv
, &priv
->rx_ring
[i
],
1905 prof
->rx_ring_size
, priv
->stride
))
1909 #ifdef CONFIG_RFS_ACCEL
1910 if (priv
->mdev
->dev
->caps
.comp_pool
) {
1911 priv
->dev
->rx_cpu_rmap
= alloc_irq_cpu_rmap(priv
->mdev
->dev
->caps
.comp_pool
);
1912 if (!priv
->dev
->rx_cpu_rmap
)
1920 en_err(priv
, "Failed to allocate NIC resources\n");
1925 void mlx4_en_destroy_netdev(struct net_device
*dev
)
1927 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1928 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1930 en_dbg(DRV
, priv
, "Destroying netdev on port:%d\n", priv
->port
);
1932 /* Unregister device - this will close the port if it was up */
1933 if (priv
->registered
)
1934 unregister_netdev(dev
);
1936 if (priv
->allocated
)
1937 mlx4_free_hwq_res(mdev
->dev
, &priv
->res
, MLX4_EN_PAGE_SIZE
);
1939 cancel_delayed_work(&priv
->stats_task
);
1940 cancel_delayed_work(&priv
->service_task
);
1941 /* flush any pending task for this netdev */
1942 flush_workqueue(mdev
->workqueue
);
1944 /* Detach the netdev so tasks would not attempt to access it */
1945 mutex_lock(&mdev
->state_lock
);
1946 mdev
->pndev
[priv
->port
] = NULL
;
1947 mutex_unlock(&mdev
->state_lock
);
1949 mlx4_en_free_resources(priv
);
1951 kfree(priv
->tx_ring
);
1957 static int mlx4_en_change_mtu(struct net_device
*dev
, int new_mtu
)
1959 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1960 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1963 en_dbg(DRV
, priv
, "Change MTU called - current:%d new:%d\n",
1966 if ((new_mtu
< MLX4_EN_MIN_MTU
) || (new_mtu
> priv
->max_mtu
)) {
1967 en_err(priv
, "Bad MTU size:%d.\n", new_mtu
);
1972 if (netif_running(dev
)) {
1973 mutex_lock(&mdev
->state_lock
);
1974 if (!mdev
->device_up
) {
1975 /* NIC is probably restarting - let watchdog task reset
1977 en_dbg(DRV
, priv
, "Change MTU called with card down!?\n");
1979 mlx4_en_stop_port(dev
, 1);
1980 err
= mlx4_en_start_port(dev
);
1982 en_err(priv
, "Failed restarting port:%d\n",
1984 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1987 mutex_unlock(&mdev
->state_lock
);
1992 static int mlx4_en_hwtstamp_ioctl(struct net_device
*dev
, struct ifreq
*ifr
)
1994 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1995 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1996 struct hwtstamp_config config
;
1998 if (copy_from_user(&config
, ifr
->ifr_data
, sizeof(config
)))
2001 /* reserved for future extensions */
2005 /* device doesn't support time stamping */
2006 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
))
2009 /* TX HW timestamp */
2010 switch (config
.tx_type
) {
2011 case HWTSTAMP_TX_OFF
:
2012 case HWTSTAMP_TX_ON
:
2018 /* RX HW timestamp */
2019 switch (config
.rx_filter
) {
2020 case HWTSTAMP_FILTER_NONE
:
2022 case HWTSTAMP_FILTER_ALL
:
2023 case HWTSTAMP_FILTER_SOME
:
2024 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT
:
2025 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC
:
2026 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ
:
2027 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT
:
2028 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC
:
2029 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ
:
2030 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT
:
2031 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC
:
2032 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ
:
2033 case HWTSTAMP_FILTER_PTP_V2_EVENT
:
2034 case HWTSTAMP_FILTER_PTP_V2_SYNC
:
2035 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
:
2036 config
.rx_filter
= HWTSTAMP_FILTER_ALL
;
2042 if (mlx4_en_timestamp_config(dev
, config
.tx_type
, config
.rx_filter
)) {
2043 config
.tx_type
= HWTSTAMP_TX_OFF
;
2044 config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2047 return copy_to_user(ifr
->ifr_data
, &config
,
2048 sizeof(config
)) ? -EFAULT
: 0;
2051 static int mlx4_en_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2055 return mlx4_en_hwtstamp_ioctl(dev
, ifr
);
2061 static int mlx4_en_set_features(struct net_device
*netdev
,
2062 netdev_features_t features
)
2064 struct mlx4_en_priv
*priv
= netdev_priv(netdev
);
2066 if (features
& NETIF_F_LOOPBACK
)
2067 priv
->ctrl_flags
|= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK
);
2070 cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK
);
2072 mlx4_en_update_loopback_state(netdev
, features
);
2078 static int mlx4_en_set_vf_mac(struct net_device
*dev
, int queue
, u8
*mac
)
2080 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2081 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2082 u64 mac_u64
= mlx4_en_mac_to_u64(mac
);
2084 if (!is_valid_ether_addr(mac
))
2087 return mlx4_set_vf_mac(mdev
->dev
, en_priv
->port
, queue
, mac_u64
);
2090 static int mlx4_en_set_vf_vlan(struct net_device
*dev
, int vf
, u16 vlan
, u8 qos
)
2092 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2093 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2095 return mlx4_set_vf_vlan(mdev
->dev
, en_priv
->port
, vf
, vlan
, qos
);
2098 static int mlx4_en_set_vf_spoofchk(struct net_device
*dev
, int vf
, bool setting
)
2100 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2101 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2103 return mlx4_set_vf_spoofchk(mdev
->dev
, en_priv
->port
, vf
, setting
);
2106 static int mlx4_en_get_vf_config(struct net_device
*dev
, int vf
, struct ifla_vf_info
*ivf
)
2108 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2109 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2111 return mlx4_get_vf_config(mdev
->dev
, en_priv
->port
, vf
, ivf
);
2114 static int mlx4_en_set_vf_link_state(struct net_device
*dev
, int vf
, int link_state
)
2116 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2117 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2119 return mlx4_set_vf_link_state(mdev
->dev
, en_priv
->port
, vf
, link_state
);
2121 static const struct net_device_ops mlx4_netdev_ops
= {
2122 .ndo_open
= mlx4_en_open
,
2123 .ndo_stop
= mlx4_en_close
,
2124 .ndo_start_xmit
= mlx4_en_xmit
,
2125 .ndo_select_queue
= mlx4_en_select_queue
,
2126 .ndo_get_stats
= mlx4_en_get_stats
,
2127 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2128 .ndo_set_mac_address
= mlx4_en_set_mac
,
2129 .ndo_validate_addr
= eth_validate_addr
,
2130 .ndo_change_mtu
= mlx4_en_change_mtu
,
2131 .ndo_do_ioctl
= mlx4_en_ioctl
,
2132 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2133 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2134 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2135 #ifdef CONFIG_NET_POLL_CONTROLLER
2136 .ndo_poll_controller
= mlx4_en_netpoll
,
2138 .ndo_set_features
= mlx4_en_set_features
,
2139 .ndo_setup_tc
= mlx4_en_setup_tc
,
2140 #ifdef CONFIG_RFS_ACCEL
2141 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2143 #ifdef CONFIG_NET_RX_BUSY_POLL
2144 .ndo_busy_poll
= mlx4_en_low_latency_recv
,
2148 static const struct net_device_ops mlx4_netdev_ops_master
= {
2149 .ndo_open
= mlx4_en_open
,
2150 .ndo_stop
= mlx4_en_close
,
2151 .ndo_start_xmit
= mlx4_en_xmit
,
2152 .ndo_select_queue
= mlx4_en_select_queue
,
2153 .ndo_get_stats
= mlx4_en_get_stats
,
2154 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2155 .ndo_set_mac_address
= mlx4_en_set_mac
,
2156 .ndo_validate_addr
= eth_validate_addr
,
2157 .ndo_change_mtu
= mlx4_en_change_mtu
,
2158 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2159 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2160 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2161 .ndo_set_vf_mac
= mlx4_en_set_vf_mac
,
2162 .ndo_set_vf_vlan
= mlx4_en_set_vf_vlan
,
2163 .ndo_set_vf_spoofchk
= mlx4_en_set_vf_spoofchk
,
2164 .ndo_set_vf_link_state
= mlx4_en_set_vf_link_state
,
2165 .ndo_get_vf_config
= mlx4_en_get_vf_config
,
2166 #ifdef CONFIG_NET_POLL_CONTROLLER
2167 .ndo_poll_controller
= mlx4_en_netpoll
,
2169 .ndo_set_features
= mlx4_en_set_features
,
2170 .ndo_setup_tc
= mlx4_en_setup_tc
,
2171 #ifdef CONFIG_RFS_ACCEL
2172 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2176 int mlx4_en_init_netdev(struct mlx4_en_dev
*mdev
, int port
,
2177 struct mlx4_en_port_profile
*prof
)
2179 struct net_device
*dev
;
2180 struct mlx4_en_priv
*priv
;
2185 dev
= alloc_etherdev_mqs(sizeof(struct mlx4_en_priv
),
2186 MAX_TX_RINGS
, MAX_RX_RINGS
);
2190 netif_set_real_num_tx_queues(dev
, prof
->tx_ring_num
);
2191 netif_set_real_num_rx_queues(dev
, prof
->rx_ring_num
);
2193 SET_NETDEV_DEV(dev
, &mdev
->dev
->pdev
->dev
);
2194 dev
->dev_id
= port
- 1;
2197 * Initialize driver private data
2200 priv
= netdev_priv(dev
);
2201 memset(priv
, 0, sizeof(struct mlx4_en_priv
));
2204 priv
->ddev
= &mdev
->pdev
->dev
;
2207 priv
->port_up
= false;
2208 priv
->flags
= prof
->flags
;
2209 priv
->ctrl_flags
= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE
|
2210 MLX4_WQE_CTRL_SOLICITED
);
2211 priv
->num_tx_rings_p_up
= mdev
->profile
.num_tx_rings_p_up
;
2212 priv
->tx_ring_num
= prof
->tx_ring_num
;
2214 priv
->tx_ring
= kzalloc(sizeof(struct mlx4_en_tx_ring
) * MAX_TX_RINGS
,
2216 if (!priv
->tx_ring
) {
2220 priv
->tx_cq
= kzalloc(sizeof(struct mlx4_en_cq
) * MAX_TX_RINGS
,
2226 priv
->rx_ring_num
= prof
->rx_ring_num
;
2227 priv
->cqe_factor
= (mdev
->dev
->caps
.cqe_size
== 64) ? 1 : 0;
2228 priv
->mac_index
= -1;
2229 priv
->msg_enable
= MLX4_EN_MSG_LEVEL
;
2230 spin_lock_init(&priv
->stats_lock
);
2231 INIT_WORK(&priv
->rx_mode_task
, mlx4_en_do_set_rx_mode
);
2232 INIT_WORK(&priv
->watchdog_task
, mlx4_en_restart
);
2233 INIT_WORK(&priv
->linkstate_task
, mlx4_en_linkstate
);
2234 INIT_DELAYED_WORK(&priv
->stats_task
, mlx4_en_do_get_stats
);
2235 INIT_DELAYED_WORK(&priv
->service_task
, mlx4_en_service_task
);
2236 #ifdef CONFIG_MLX4_EN_DCB
2237 if (!mlx4_is_slave(priv
->mdev
->dev
)) {
2238 if (mdev
->dev
->caps
.flags
& MLX4_DEV_CAP_FLAG_SET_ETH_SCHED
) {
2239 dev
->dcbnl_ops
= &mlx4_en_dcbnl_ops
;
2241 en_info(priv
, "enabling only PFC DCB ops\n");
2242 dev
->dcbnl_ops
= &mlx4_en_dcbnl_pfc_ops
;
2247 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
)
2248 INIT_HLIST_HEAD(&priv
->mac_hash
[i
]);
2250 /* Query for default mac and max mtu */
2251 priv
->max_mtu
= mdev
->dev
->caps
.eth_mtu_cap
[priv
->port
];
2253 /* Set default MAC */
2254 dev
->addr_len
= ETH_ALEN
;
2255 mlx4_en_u64_to_mac(dev
->dev_addr
, mdev
->dev
->caps
.def_mac
[priv
->port
]);
2256 if (!is_valid_ether_addr(dev
->dev_addr
)) {
2257 if (mlx4_is_slave(priv
->mdev
->dev
)) {
2258 eth_hw_addr_random(dev
);
2259 en_warn(priv
, "Assigned random MAC address %pM\n", dev
->dev_addr
);
2260 mac_u64
= mlx4_en_mac_to_u64(dev
->dev_addr
);
2261 mdev
->dev
->caps
.def_mac
[priv
->port
] = mac_u64
;
2263 en_err(priv
, "Port: %d, invalid mac burned: %pM, quiting\n",
2264 priv
->port
, dev
->dev_addr
);
2270 memcpy(priv
->prev_mac
, dev
->dev_addr
, sizeof(priv
->prev_mac
));
2272 priv
->stride
= roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc
) +
2273 DS_SIZE
* MLX4_EN_MAX_RX_FRAGS
);
2274 err
= mlx4_en_alloc_resources(priv
);
2278 #ifdef CONFIG_RFS_ACCEL
2279 INIT_LIST_HEAD(&priv
->filters
);
2280 spin_lock_init(&priv
->filters_lock
);
2283 /* Initialize time stamping config */
2284 priv
->hwtstamp_config
.flags
= 0;
2285 priv
->hwtstamp_config
.tx_type
= HWTSTAMP_TX_OFF
;
2286 priv
->hwtstamp_config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2288 /* Allocate page for receive rings */
2289 err
= mlx4_alloc_hwq_res(mdev
->dev
, &priv
->res
,
2290 MLX4_EN_PAGE_SIZE
, MLX4_EN_PAGE_SIZE
);
2292 en_err(priv
, "Failed to allocate page for rx qps\n");
2295 priv
->allocated
= 1;
2298 * Initialize netdev entry points
2300 if (mlx4_is_master(priv
->mdev
->dev
))
2301 dev
->netdev_ops
= &mlx4_netdev_ops_master
;
2303 dev
->netdev_ops
= &mlx4_netdev_ops
;
2304 dev
->watchdog_timeo
= MLX4_EN_WATCHDOG_TIMEOUT
;
2305 netif_set_real_num_tx_queues(dev
, priv
->tx_ring_num
);
2306 netif_set_real_num_rx_queues(dev
, priv
->rx_ring_num
);
2308 SET_ETHTOOL_OPS(dev
, &mlx4_en_ethtool_ops
);
2311 * Set driver features
2313 dev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
2314 if (mdev
->LSO_support
)
2315 dev
->hw_features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
2317 dev
->vlan_features
= dev
->hw_features
;
2319 dev
->hw_features
|= NETIF_F_RXCSUM
| NETIF_F_RXHASH
;
2320 dev
->features
= dev
->hw_features
| NETIF_F_HIGHDMA
|
2321 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
|
2322 NETIF_F_HW_VLAN_CTAG_FILTER
;
2323 dev
->hw_features
|= NETIF_F_LOOPBACK
;
2325 if (mdev
->dev
->caps
.steering_mode
==
2326 MLX4_STEERING_MODE_DEVICE_MANAGED
)
2327 dev
->hw_features
|= NETIF_F_NTUPLE
;
2329 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
2330 dev
->priv_flags
|= IFF_UNICAST_FLT
;
2332 mdev
->pndev
[port
] = dev
;
2334 netif_carrier_off(dev
);
2335 mlx4_en_set_default_moderation(priv
);
2337 err
= register_netdev(dev
);
2339 en_err(priv
, "Netdev registration failed for port %d\n", port
);
2342 priv
->registered
= 1;
2344 en_warn(priv
, "Using %d TX rings\n", prof
->tx_ring_num
);
2345 en_warn(priv
, "Using %d RX rings\n", prof
->rx_ring_num
);
2347 mlx4_en_update_loopback_state(priv
->dev
, priv
->dev
->features
);
2349 /* Configure port */
2350 mlx4_en_calc_rx_buf(dev
);
2351 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
2352 priv
->rx_skb_size
+ ETH_FCS_LEN
,
2353 prof
->tx_pause
, prof
->tx_ppp
,
2354 prof
->rx_pause
, prof
->rx_ppp
);
2356 en_err(priv
, "Failed setting port general configurations "
2357 "for port %d, with error %d\n", priv
->port
, err
);
2362 en_warn(priv
, "Initializing port\n");
2363 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
2365 en_err(priv
, "Failed Initializing port\n");
2368 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
2370 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
2371 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
2372 SERVICE_TASK_DELAY
);
2377 mlx4_en_destroy_netdev(dev
);