2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/bpf.h>
35 #include <linux/etherdevice.h>
36 #include <linux/tcp.h>
37 #include <linux/if_vlan.h>
38 #include <linux/delay.h>
39 #include <linux/slab.h>
40 #include <linux/hash.h>
42 #include <net/busy_poll.h>
43 #include <net/vxlan.h>
44 #include <net/devlink.h>
46 #include <linux/mlx4/driver.h>
47 #include <linux/mlx4/device.h>
48 #include <linux/mlx4/cmd.h>
49 #include <linux/mlx4/cq.h>
54 int mlx4_en_setup_tc(struct net_device
*dev
, u8 up
)
56 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
58 unsigned int offset
= 0;
60 if (up
&& up
!= MLX4_EN_NUM_UP
)
63 netdev_set_num_tc(dev
, up
);
65 /* Partition Tx queues evenly amongst UP's */
66 for (i
= 0; i
< up
; i
++) {
67 netdev_set_tc_queue(dev
, i
, priv
->num_tx_rings_p_up
, offset
);
68 offset
+= priv
->num_tx_rings_p_up
;
71 #ifdef CONFIG_MLX4_EN_DCB
72 if (!mlx4_is_slave(priv
->mdev
->dev
)) {
74 priv
->flags
|= MLX4_EN_FLAG_DCB_ENABLED
;
76 priv
->flags
&= ~MLX4_EN_FLAG_DCB_ENABLED
;
77 priv
->cee_params
.dcb_cfg
.pfc_state
= false;
80 #endif /* CONFIG_MLX4_EN_DCB */
85 static int __mlx4_en_setup_tc(struct net_device
*dev
, u32 handle
, __be16 proto
,
86 struct tc_to_netdev
*tc
)
88 if (tc
->type
!= TC_SETUP_MQPRIO
)
91 return mlx4_en_setup_tc(dev
, tc
->tc
);
94 #ifdef CONFIG_RFS_ACCEL
96 struct mlx4_en_filter
{
97 struct list_head next
;
98 struct work_struct work
;
107 struct mlx4_en_priv
*priv
;
108 u32 flow_id
; /* RFS infrastructure id */
109 int id
; /* mlx4_en driver id */
110 u64 reg_id
; /* Flow steering API id */
111 u8 activated
; /* Used to prevent expiry before filter
114 struct hlist_node filter_chain
;
117 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
);
119 static enum mlx4_net_trans_rule_id
mlx4_ip_proto_to_trans_rule_id(u8 ip_proto
)
123 return MLX4_NET_TRANS_RULE_ID_UDP
;
125 return MLX4_NET_TRANS_RULE_ID_TCP
;
127 return MLX4_NET_TRANS_RULE_NUM
;
131 static void mlx4_en_filter_work(struct work_struct
*work
)
133 struct mlx4_en_filter
*filter
= container_of(work
,
134 struct mlx4_en_filter
,
136 struct mlx4_en_priv
*priv
= filter
->priv
;
137 struct mlx4_spec_list spec_tcp_udp
= {
138 .id
= mlx4_ip_proto_to_trans_rule_id(filter
->ip_proto
),
141 .dst_port
= filter
->dst_port
,
142 .dst_port_msk
= (__force __be16
)-1,
143 .src_port
= filter
->src_port
,
144 .src_port_msk
= (__force __be16
)-1,
148 struct mlx4_spec_list spec_ip
= {
149 .id
= MLX4_NET_TRANS_RULE_ID_IPV4
,
152 .dst_ip
= filter
->dst_ip
,
153 .dst_ip_msk
= (__force __be32
)-1,
154 .src_ip
= filter
->src_ip
,
155 .src_ip_msk
= (__force __be32
)-1,
159 struct mlx4_spec_list spec_eth
= {
160 .id
= MLX4_NET_TRANS_RULE_ID_ETH
,
162 struct mlx4_net_trans_rule rule
= {
163 .list
= LIST_HEAD_INIT(rule
.list
),
164 .queue_mode
= MLX4_NET_TRANS_Q_LIFO
,
167 .promisc_mode
= MLX4_FS_REGULAR
,
169 .priority
= MLX4_DOMAIN_RFS
,
172 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
174 if (spec_tcp_udp
.id
>= MLX4_NET_TRANS_RULE_NUM
) {
175 en_warn(priv
, "RFS: ignoring unsupported ip protocol (%d)\n",
179 list_add_tail(&spec_eth
.list
, &rule
.list
);
180 list_add_tail(&spec_ip
.list
, &rule
.list
);
181 list_add_tail(&spec_tcp_udp
.list
, &rule
.list
);
183 rule
.qpn
= priv
->rss_map
.qps
[filter
->rxq_index
].qpn
;
184 memcpy(spec_eth
.eth
.dst_mac
, priv
->dev
->dev_addr
, ETH_ALEN
);
185 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
187 filter
->activated
= 0;
189 if (filter
->reg_id
) {
190 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
191 if (rc
&& rc
!= -ENOENT
)
192 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
195 rc
= mlx4_flow_attach(priv
->mdev
->dev
, &rule
, &filter
->reg_id
);
197 en_err(priv
, "Error attaching flow. err = %d\n", rc
);
200 mlx4_en_filter_rfs_expire(priv
);
202 filter
->activated
= 1;
205 static inline struct hlist_head
*
206 filter_hash_bucket(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
207 __be16 src_port
, __be16 dst_port
)
212 l
= (__force
unsigned long)src_port
|
213 ((__force
unsigned long)dst_port
<< 2);
214 l
^= (__force
unsigned long)(src_ip
^ dst_ip
);
216 bucket_idx
= hash_long(l
, MLX4_EN_FILTER_HASH_SHIFT
);
218 return &priv
->filter_hash
[bucket_idx
];
221 static struct mlx4_en_filter
*
222 mlx4_en_filter_alloc(struct mlx4_en_priv
*priv
, int rxq_index
, __be32 src_ip
,
223 __be32 dst_ip
, u8 ip_proto
, __be16 src_port
,
224 __be16 dst_port
, u32 flow_id
)
226 struct mlx4_en_filter
*filter
= NULL
;
228 filter
= kzalloc(sizeof(struct mlx4_en_filter
), GFP_ATOMIC
);
233 filter
->rxq_index
= rxq_index
;
234 INIT_WORK(&filter
->work
, mlx4_en_filter_work
);
236 filter
->src_ip
= src_ip
;
237 filter
->dst_ip
= dst_ip
;
238 filter
->ip_proto
= ip_proto
;
239 filter
->src_port
= src_port
;
240 filter
->dst_port
= dst_port
;
242 filter
->flow_id
= flow_id
;
244 filter
->id
= priv
->last_filter_id
++ % RPS_NO_FILTER
;
246 list_add_tail(&filter
->next
, &priv
->filters
);
247 hlist_add_head(&filter
->filter_chain
,
248 filter_hash_bucket(priv
, src_ip
, dst_ip
, src_port
,
254 static void mlx4_en_filter_free(struct mlx4_en_filter
*filter
)
256 struct mlx4_en_priv
*priv
= filter
->priv
;
259 list_del(&filter
->next
);
261 rc
= mlx4_flow_detach(priv
->mdev
->dev
, filter
->reg_id
);
262 if (rc
&& rc
!= -ENOENT
)
263 en_err(priv
, "Error detaching flow. rc = %d\n", rc
);
268 static inline struct mlx4_en_filter
*
269 mlx4_en_filter_find(struct mlx4_en_priv
*priv
, __be32 src_ip
, __be32 dst_ip
,
270 u8 ip_proto
, __be16 src_port
, __be16 dst_port
)
272 struct mlx4_en_filter
*filter
;
273 struct mlx4_en_filter
*ret
= NULL
;
275 hlist_for_each_entry(filter
,
276 filter_hash_bucket(priv
, src_ip
, dst_ip
,
279 if (filter
->src_ip
== src_ip
&&
280 filter
->dst_ip
== dst_ip
&&
281 filter
->ip_proto
== ip_proto
&&
282 filter
->src_port
== src_port
&&
283 filter
->dst_port
== dst_port
) {
293 mlx4_en_filter_rfs(struct net_device
*net_dev
, const struct sk_buff
*skb
,
294 u16 rxq_index
, u32 flow_id
)
296 struct mlx4_en_priv
*priv
= netdev_priv(net_dev
);
297 struct mlx4_en_filter
*filter
;
298 const struct iphdr
*ip
;
305 int nhoff
= skb_network_offset(skb
);
308 if (skb
->protocol
!= htons(ETH_P_IP
))
309 return -EPROTONOSUPPORT
;
311 ip
= (const struct iphdr
*)(skb
->data
+ nhoff
);
312 if (ip_is_fragment(ip
))
313 return -EPROTONOSUPPORT
;
315 if ((ip
->protocol
!= IPPROTO_TCP
) && (ip
->protocol
!= IPPROTO_UDP
))
316 return -EPROTONOSUPPORT
;
317 ports
= (const __be16
*)(skb
->data
+ nhoff
+ 4 * ip
->ihl
);
319 ip_proto
= ip
->protocol
;
325 spin_lock_bh(&priv
->filters_lock
);
326 filter
= mlx4_en_filter_find(priv
, src_ip
, dst_ip
, ip_proto
,
329 if (filter
->rxq_index
== rxq_index
)
332 filter
->rxq_index
= rxq_index
;
334 filter
= mlx4_en_filter_alloc(priv
, rxq_index
,
335 src_ip
, dst_ip
, ip_proto
,
336 src_port
, dst_port
, flow_id
);
343 queue_work(priv
->mdev
->workqueue
, &filter
->work
);
348 spin_unlock_bh(&priv
->filters_lock
);
353 void mlx4_en_cleanup_filters(struct mlx4_en_priv
*priv
)
355 struct mlx4_en_filter
*filter
, *tmp
;
358 spin_lock_bh(&priv
->filters_lock
);
359 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
360 list_move(&filter
->next
, &del_list
);
361 hlist_del(&filter
->filter_chain
);
363 spin_unlock_bh(&priv
->filters_lock
);
365 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
) {
366 cancel_work_sync(&filter
->work
);
367 mlx4_en_filter_free(filter
);
371 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv
*priv
)
373 struct mlx4_en_filter
*filter
= NULL
, *tmp
, *last_filter
= NULL
;
377 spin_lock_bh(&priv
->filters_lock
);
378 list_for_each_entry_safe(filter
, tmp
, &priv
->filters
, next
) {
379 if (i
> MLX4_EN_FILTER_EXPIRY_QUOTA
)
382 if (filter
->activated
&&
383 !work_pending(&filter
->work
) &&
384 rps_may_expire_flow(priv
->dev
,
385 filter
->rxq_index
, filter
->flow_id
,
387 list_move(&filter
->next
, &del_list
);
388 hlist_del(&filter
->filter_chain
);
390 last_filter
= filter
;
395 if (last_filter
&& (&last_filter
->next
!= priv
->filters
.next
))
396 list_move(&priv
->filters
, &last_filter
->next
);
398 spin_unlock_bh(&priv
->filters_lock
);
400 list_for_each_entry_safe(filter
, tmp
, &del_list
, next
)
401 mlx4_en_filter_free(filter
);
405 static int mlx4_en_vlan_rx_add_vid(struct net_device
*dev
,
406 __be16 proto
, u16 vid
)
408 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
409 struct mlx4_en_dev
*mdev
= priv
->mdev
;
413 en_dbg(HW
, priv
, "adding VLAN:%d\n", vid
);
415 set_bit(vid
, priv
->active_vlans
);
417 /* Add VID to port VLAN filter */
418 mutex_lock(&mdev
->state_lock
);
419 if (mdev
->device_up
&& priv
->port_up
) {
420 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
422 en_err(priv
, "Failed configuring VLAN filter\n");
426 err
= mlx4_register_vlan(mdev
->dev
, priv
->port
, vid
, &idx
);
428 en_dbg(HW
, priv
, "Failed adding vlan %d\n", vid
);
431 mutex_unlock(&mdev
->state_lock
);
435 static int mlx4_en_vlan_rx_kill_vid(struct net_device
*dev
,
436 __be16 proto
, u16 vid
)
438 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
439 struct mlx4_en_dev
*mdev
= priv
->mdev
;
442 en_dbg(HW
, priv
, "Killing VID:%d\n", vid
);
444 clear_bit(vid
, priv
->active_vlans
);
446 /* Remove VID from port VLAN filter */
447 mutex_lock(&mdev
->state_lock
);
448 mlx4_unregister_vlan(mdev
->dev
, priv
->port
, vid
);
450 if (mdev
->device_up
&& priv
->port_up
) {
451 err
= mlx4_SET_VLAN_FLTR(mdev
->dev
, priv
);
453 en_err(priv
, "Failed configuring VLAN filter\n");
455 mutex_unlock(&mdev
->state_lock
);
460 static void mlx4_en_u64_to_mac(unsigned char dst_mac
[ETH_ALEN
+ 2], u64 src_mac
)
463 for (i
= ETH_ALEN
- 1; i
>= 0; --i
) {
464 dst_mac
[i
] = src_mac
& 0xff;
467 memset(&dst_mac
[ETH_ALEN
], 0, 2);
471 static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv
*priv
, unsigned char *addr
,
472 int qpn
, u64
*reg_id
)
476 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
||
477 priv
->mdev
->dev
->caps
.dmfs_high_steer_mode
== MLX4_STEERING_DMFS_A0_STATIC
)
478 return 0; /* do nothing */
480 err
= mlx4_tunnel_steer_add(priv
->mdev
->dev
, addr
, priv
->port
, qpn
,
481 MLX4_DOMAIN_NIC
, reg_id
);
483 en_err(priv
, "failed to add vxlan steering rule, err %d\n", err
);
486 en_dbg(DRV
, priv
, "added vxlan steering rule, mac %pM reg_id %llx\n", addr
, *reg_id
);
491 static int mlx4_en_uc_steer_add(struct mlx4_en_priv
*priv
,
492 unsigned char *mac
, int *qpn
, u64
*reg_id
)
494 struct mlx4_en_dev
*mdev
= priv
->mdev
;
495 struct mlx4_dev
*dev
= mdev
->dev
;
498 switch (dev
->caps
.steering_mode
) {
499 case MLX4_STEERING_MODE_B0
: {
504 memcpy(&gid
[10], mac
, ETH_ALEN
);
507 err
= mlx4_unicast_attach(dev
, &qp
, gid
, 0, MLX4_PROT_ETH
);
510 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
511 struct mlx4_spec_list spec_eth
= { {NULL
} };
512 __be64 mac_mask
= cpu_to_be64(MLX4_MAC_MASK
<< 16);
514 struct mlx4_net_trans_rule rule
= {
515 .queue_mode
= MLX4_NET_TRANS_Q_FIFO
,
518 .promisc_mode
= MLX4_FS_REGULAR
,
519 .priority
= MLX4_DOMAIN_NIC
,
522 rule
.port
= priv
->port
;
524 INIT_LIST_HEAD(&rule
.list
);
526 spec_eth
.id
= MLX4_NET_TRANS_RULE_ID_ETH
;
527 memcpy(spec_eth
.eth
.dst_mac
, mac
, ETH_ALEN
);
528 memcpy(spec_eth
.eth
.dst_mac_msk
, &mac_mask
, ETH_ALEN
);
529 list_add_tail(&spec_eth
.list
, &rule
.list
);
531 err
= mlx4_flow_attach(dev
, &rule
, reg_id
);
538 en_warn(priv
, "Failed Attaching Unicast\n");
543 static void mlx4_en_uc_steer_release(struct mlx4_en_priv
*priv
,
544 unsigned char *mac
, int qpn
, u64 reg_id
)
546 struct mlx4_en_dev
*mdev
= priv
->mdev
;
547 struct mlx4_dev
*dev
= mdev
->dev
;
549 switch (dev
->caps
.steering_mode
) {
550 case MLX4_STEERING_MODE_B0
: {
555 memcpy(&gid
[10], mac
, ETH_ALEN
);
558 mlx4_unicast_detach(dev
, &qp
, gid
, MLX4_PROT_ETH
);
561 case MLX4_STEERING_MODE_DEVICE_MANAGED
: {
562 mlx4_flow_detach(dev
, reg_id
);
566 en_err(priv
, "Invalid steering mode.\n");
570 static int mlx4_en_get_qp(struct mlx4_en_priv
*priv
)
572 struct mlx4_en_dev
*mdev
= priv
->mdev
;
573 struct mlx4_dev
*dev
= mdev
->dev
;
576 int *qpn
= &priv
->base_qpn
;
577 u64 mac
= mlx4_mac_to_u64(priv
->dev
->dev_addr
);
579 en_dbg(DRV
, priv
, "Registering MAC: %pM for adding\n",
580 priv
->dev
->dev_addr
);
581 index
= mlx4_register_mac(dev
, priv
->port
, mac
);
584 en_err(priv
, "Failed adding MAC: %pM\n",
585 priv
->dev
->dev_addr
);
589 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
590 int base_qpn
= mlx4_get_base_qpn(dev
, priv
->port
);
591 *qpn
= base_qpn
+ index
;
595 err
= mlx4_qp_reserve_range(dev
, 1, 1, qpn
, MLX4_RESERVE_A0_QP
);
596 en_dbg(DRV
, priv
, "Reserved qp %d\n", *qpn
);
598 en_err(priv
, "Failed to reserve qp for mac registration\n");
599 mlx4_unregister_mac(dev
, priv
->port
, mac
);
606 static void mlx4_en_put_qp(struct mlx4_en_priv
*priv
)
608 struct mlx4_en_dev
*mdev
= priv
->mdev
;
609 struct mlx4_dev
*dev
= mdev
->dev
;
610 int qpn
= priv
->base_qpn
;
612 if (dev
->caps
.steering_mode
== MLX4_STEERING_MODE_A0
) {
613 u64 mac
= mlx4_mac_to_u64(priv
->dev
->dev_addr
);
614 en_dbg(DRV
, priv
, "Registering MAC: %pM for deleting\n",
615 priv
->dev
->dev_addr
);
616 mlx4_unregister_mac(dev
, priv
->port
, mac
);
618 en_dbg(DRV
, priv
, "Releasing qp: port %d, qpn %d\n",
620 mlx4_qp_release_range(dev
, qpn
, 1);
621 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
625 static int mlx4_en_replace_mac(struct mlx4_en_priv
*priv
, int qpn
,
626 unsigned char *new_mac
, unsigned char *prev_mac
)
628 struct mlx4_en_dev
*mdev
= priv
->mdev
;
629 struct mlx4_dev
*dev
= mdev
->dev
;
631 u64 new_mac_u64
= mlx4_mac_to_u64(new_mac
);
633 if (dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
) {
634 struct hlist_head
*bucket
;
635 unsigned int mac_hash
;
636 struct mlx4_mac_entry
*entry
;
637 struct hlist_node
*tmp
;
638 u64 prev_mac_u64
= mlx4_mac_to_u64(prev_mac
);
640 bucket
= &priv
->mac_hash
[prev_mac
[MLX4_EN_MAC_HASH_IDX
]];
641 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
642 if (ether_addr_equal_64bits(entry
->mac
, prev_mac
)) {
643 mlx4_en_uc_steer_release(priv
, entry
->mac
,
645 mlx4_unregister_mac(dev
, priv
->port
,
647 hlist_del_rcu(&entry
->hlist
);
649 memcpy(entry
->mac
, new_mac
, ETH_ALEN
);
651 mac_hash
= new_mac
[MLX4_EN_MAC_HASH_IDX
];
652 hlist_add_head_rcu(&entry
->hlist
,
653 &priv
->mac_hash
[mac_hash
]);
654 mlx4_register_mac(dev
, priv
->port
, new_mac_u64
);
655 err
= mlx4_en_uc_steer_add(priv
, new_mac
,
660 if (priv
->tunnel_reg_id
) {
661 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
662 priv
->tunnel_reg_id
= 0;
664 err
= mlx4_en_tunnel_steer_add(priv
, new_mac
, qpn
,
665 &priv
->tunnel_reg_id
);
672 return __mlx4_replace_mac(dev
, priv
->port
, qpn
, new_mac_u64
);
675 static int mlx4_en_do_set_mac(struct mlx4_en_priv
*priv
,
676 unsigned char new_mac
[ETH_ALEN
+ 2])
681 /* Remove old MAC and insert the new one */
682 err
= mlx4_en_replace_mac(priv
, priv
->base_qpn
,
683 new_mac
, priv
->current_mac
);
685 en_err(priv
, "Failed changing HW MAC address\n");
687 en_dbg(HW
, priv
, "Port is down while registering mac, exiting...\n");
690 memcpy(priv
->current_mac
, new_mac
, sizeof(priv
->current_mac
));
695 static int mlx4_en_set_mac(struct net_device
*dev
, void *addr
)
697 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
698 struct mlx4_en_dev
*mdev
= priv
->mdev
;
699 struct sockaddr
*saddr
= addr
;
700 unsigned char new_mac
[ETH_ALEN
+ 2];
703 if (!is_valid_ether_addr(saddr
->sa_data
))
704 return -EADDRNOTAVAIL
;
706 mutex_lock(&mdev
->state_lock
);
707 memcpy(new_mac
, saddr
->sa_data
, ETH_ALEN
);
708 err
= mlx4_en_do_set_mac(priv
, new_mac
);
710 memcpy(dev
->dev_addr
, saddr
->sa_data
, ETH_ALEN
);
711 mutex_unlock(&mdev
->state_lock
);
716 static void mlx4_en_clear_list(struct net_device
*dev
)
718 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
719 struct mlx4_en_mc_list
*tmp
, *mc_to_del
;
721 list_for_each_entry_safe(mc_to_del
, tmp
, &priv
->mc_list
, list
) {
722 list_del(&mc_to_del
->list
);
727 static void mlx4_en_cache_mclist(struct net_device
*dev
)
729 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
730 struct netdev_hw_addr
*ha
;
731 struct mlx4_en_mc_list
*tmp
;
733 mlx4_en_clear_list(dev
);
734 netdev_for_each_mc_addr(ha
, dev
) {
735 tmp
= kzalloc(sizeof(struct mlx4_en_mc_list
), GFP_ATOMIC
);
737 mlx4_en_clear_list(dev
);
740 memcpy(tmp
->addr
, ha
->addr
, ETH_ALEN
);
741 list_add_tail(&tmp
->list
, &priv
->mc_list
);
745 static void update_mclist_flags(struct mlx4_en_priv
*priv
,
746 struct list_head
*dst
,
747 struct list_head
*src
)
749 struct mlx4_en_mc_list
*dst_tmp
, *src_tmp
, *new_mc
;
752 /* Find all the entries that should be removed from dst,
753 * These are the entries that are not found in src
755 list_for_each_entry(dst_tmp
, dst
, list
) {
757 list_for_each_entry(src_tmp
, src
, list
) {
758 if (ether_addr_equal(dst_tmp
->addr
, src_tmp
->addr
)) {
764 dst_tmp
->action
= MCLIST_REM
;
767 /* Add entries that exist in src but not in dst
768 * mark them as need to add
770 list_for_each_entry(src_tmp
, src
, list
) {
772 list_for_each_entry(dst_tmp
, dst
, list
) {
773 if (ether_addr_equal(dst_tmp
->addr
, src_tmp
->addr
)) {
774 dst_tmp
->action
= MCLIST_NONE
;
780 new_mc
= kmemdup(src_tmp
,
781 sizeof(struct mlx4_en_mc_list
),
786 new_mc
->action
= MCLIST_ADD
;
787 list_add_tail(&new_mc
->list
, dst
);
792 static void mlx4_en_set_rx_mode(struct net_device
*dev
)
794 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
799 queue_work(priv
->mdev
->workqueue
, &priv
->rx_mode_task
);
802 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv
*priv
,
803 struct mlx4_en_dev
*mdev
)
807 if (!(priv
->flags
& MLX4_EN_FLAG_PROMISC
)) {
808 if (netif_msg_rx_status(priv
))
809 en_warn(priv
, "Entering promiscuous mode\n");
810 priv
->flags
|= MLX4_EN_FLAG_PROMISC
;
812 /* Enable promiscouos mode */
813 switch (mdev
->dev
->caps
.steering_mode
) {
814 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
815 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
818 MLX4_FS_ALL_DEFAULT
);
820 en_err(priv
, "Failed enabling promiscuous mode\n");
821 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
824 case MLX4_STEERING_MODE_B0
:
825 err
= mlx4_unicast_promisc_add(mdev
->dev
,
829 en_err(priv
, "Failed enabling unicast promiscuous mode\n");
831 /* Add the default qp number as multicast
834 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
835 err
= mlx4_multicast_promisc_add(mdev
->dev
,
839 en_err(priv
, "Failed enabling multicast promiscuous mode\n");
840 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
844 case MLX4_STEERING_MODE_A0
:
845 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
850 en_err(priv
, "Failed enabling promiscuous mode\n");
854 /* Disable port multicast filter (unconditionally) */
855 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
856 0, MLX4_MCAST_DISABLE
);
858 en_err(priv
, "Failed disabling multicast filter\n");
862 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv
*priv
,
863 struct mlx4_en_dev
*mdev
)
867 if (netif_msg_rx_status(priv
))
868 en_warn(priv
, "Leaving promiscuous mode\n");
869 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
871 /* Disable promiscouos mode */
872 switch (mdev
->dev
->caps
.steering_mode
) {
873 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
874 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
876 MLX4_FS_ALL_DEFAULT
);
878 en_err(priv
, "Failed disabling promiscuous mode\n");
879 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
882 case MLX4_STEERING_MODE_B0
:
883 err
= mlx4_unicast_promisc_remove(mdev
->dev
,
887 en_err(priv
, "Failed disabling unicast promiscuous mode\n");
888 /* Disable Multicast promisc */
889 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
890 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
894 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
895 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
899 case MLX4_STEERING_MODE_A0
:
900 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
,
904 en_err(priv
, "Failed disabling promiscuous mode\n");
909 static void mlx4_en_do_multicast(struct mlx4_en_priv
*priv
,
910 struct net_device
*dev
,
911 struct mlx4_en_dev
*mdev
)
913 struct mlx4_en_mc_list
*mclist
, *tmp
;
915 u8 mc_list
[16] = {0};
918 /* Enable/disable the multicast filter according to IFF_ALLMULTI */
919 if (dev
->flags
& IFF_ALLMULTI
) {
920 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
921 0, MLX4_MCAST_DISABLE
);
923 en_err(priv
, "Failed disabling multicast filter\n");
925 /* Add the default qp number as multicast promisc */
926 if (!(priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
)) {
927 switch (mdev
->dev
->caps
.steering_mode
) {
928 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
929 err
= mlx4_flow_steer_promisc_add(mdev
->dev
,
935 case MLX4_STEERING_MODE_B0
:
936 err
= mlx4_multicast_promisc_add(mdev
->dev
,
941 case MLX4_STEERING_MODE_A0
:
945 en_err(priv
, "Failed entering multicast promisc mode\n");
946 priv
->flags
|= MLX4_EN_FLAG_MC_PROMISC
;
949 /* Disable Multicast promisc */
950 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
951 switch (mdev
->dev
->caps
.steering_mode
) {
952 case MLX4_STEERING_MODE_DEVICE_MANAGED
:
953 err
= mlx4_flow_steer_promisc_remove(mdev
->dev
,
958 case MLX4_STEERING_MODE_B0
:
959 err
= mlx4_multicast_promisc_remove(mdev
->dev
,
964 case MLX4_STEERING_MODE_A0
:
968 en_err(priv
, "Failed disabling multicast promiscuous mode\n");
969 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
972 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
973 0, MLX4_MCAST_DISABLE
);
975 en_err(priv
, "Failed disabling multicast filter\n");
977 /* Flush mcast filter and init it with broadcast address */
978 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, ETH_BCAST
,
979 1, MLX4_MCAST_CONFIG
);
981 /* Update multicast list - we cache all addresses so they won't
982 * change while HW is updated holding the command semaphor */
983 netif_addr_lock_bh(dev
);
984 mlx4_en_cache_mclist(dev
);
985 netif_addr_unlock_bh(dev
);
986 list_for_each_entry(mclist
, &priv
->mc_list
, list
) {
987 mcast_addr
= mlx4_mac_to_u64(mclist
->addr
);
988 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
,
989 mcast_addr
, 0, MLX4_MCAST_CONFIG
);
991 err
= mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0,
992 0, MLX4_MCAST_ENABLE
);
994 en_err(priv
, "Failed enabling multicast filter\n");
996 update_mclist_flags(priv
, &priv
->curr_list
, &priv
->mc_list
);
997 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
998 if (mclist
->action
== MCLIST_REM
) {
999 /* detach this address and delete from list */
1000 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1001 mc_list
[5] = priv
->port
;
1002 err
= mlx4_multicast_detach(mdev
->dev
,
1003 &priv
->rss_map
.indir_qp
,
1008 en_err(priv
, "Fail to detach multicast address\n");
1010 if (mclist
->tunnel_reg_id
) {
1011 err
= mlx4_flow_detach(priv
->mdev
->dev
, mclist
->tunnel_reg_id
);
1013 en_err(priv
, "Failed to detach multicast address\n");
1016 /* remove from list */
1017 list_del(&mclist
->list
);
1019 } else if (mclist
->action
== MCLIST_ADD
) {
1020 /* attach the address */
1021 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1022 /* needed for B0 steering support */
1023 mc_list
[5] = priv
->port
;
1024 err
= mlx4_multicast_attach(mdev
->dev
,
1025 &priv
->rss_map
.indir_qp
,
1031 en_err(priv
, "Fail to attach multicast address\n");
1033 err
= mlx4_en_tunnel_steer_add(priv
, &mc_list
[10], priv
->base_qpn
,
1034 &mclist
->tunnel_reg_id
);
1036 en_err(priv
, "Failed to attach multicast address\n");
1042 static void mlx4_en_do_uc_filter(struct mlx4_en_priv
*priv
,
1043 struct net_device
*dev
,
1044 struct mlx4_en_dev
*mdev
)
1046 struct netdev_hw_addr
*ha
;
1047 struct mlx4_mac_entry
*entry
;
1048 struct hlist_node
*tmp
;
1052 struct hlist_head
*bucket
;
1057 /* Note that we do not need to protect our mac_hash traversal with rcu,
1058 * since all modification code is protected by mdev->state_lock
1061 /* find what to remove */
1062 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1063 bucket
= &priv
->mac_hash
[i
];
1064 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1066 netdev_for_each_uc_addr(ha
, dev
) {
1067 if (ether_addr_equal_64bits(entry
->mac
,
1074 /* MAC address of the port is not in uc list */
1075 if (ether_addr_equal_64bits(entry
->mac
,
1080 mac
= mlx4_mac_to_u64(entry
->mac
);
1081 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1084 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1086 hlist_del_rcu(&entry
->hlist
);
1087 kfree_rcu(entry
, rcu
);
1088 en_dbg(DRV
, priv
, "Removed MAC %pM on port:%d\n",
1089 entry
->mac
, priv
->port
);
1095 /* if we didn't remove anything, there is no use in trying to add
1096 * again once we are in a forced promisc mode state
1098 if ((priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) && 0 == removed
)
1101 prev_flags
= priv
->flags
;
1102 priv
->flags
&= ~MLX4_EN_FLAG_FORCE_PROMISC
;
1104 /* find what to add */
1105 netdev_for_each_uc_addr(ha
, dev
) {
1107 bucket
= &priv
->mac_hash
[ha
->addr
[MLX4_EN_MAC_HASH_IDX
]];
1108 hlist_for_each_entry(entry
, bucket
, hlist
) {
1109 if (ether_addr_equal_64bits(entry
->mac
, ha
->addr
)) {
1116 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1118 en_err(priv
, "Failed adding MAC %pM on port:%d (out of memory)\n",
1119 ha
->addr
, priv
->port
);
1120 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1123 mac
= mlx4_mac_to_u64(ha
->addr
);
1124 memcpy(entry
->mac
, ha
->addr
, ETH_ALEN
);
1125 err
= mlx4_register_mac(mdev
->dev
, priv
->port
, mac
);
1127 en_err(priv
, "Failed registering MAC %pM on port %d: %d\n",
1128 ha
->addr
, priv
->port
, err
);
1130 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1133 err
= mlx4_en_uc_steer_add(priv
, ha
->addr
,
1137 en_err(priv
, "Failed adding MAC %pM on port %d: %d\n",
1138 ha
->addr
, priv
->port
, err
);
1139 mlx4_unregister_mac(mdev
->dev
, priv
->port
, mac
);
1141 priv
->flags
|= MLX4_EN_FLAG_FORCE_PROMISC
;
1144 unsigned int mac_hash
;
1145 en_dbg(DRV
, priv
, "Added MAC %pM on port:%d\n",
1146 ha
->addr
, priv
->port
);
1147 mac_hash
= ha
->addr
[MLX4_EN_MAC_HASH_IDX
];
1148 bucket
= &priv
->mac_hash
[mac_hash
];
1149 hlist_add_head_rcu(&entry
->hlist
, bucket
);
1154 if (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1155 en_warn(priv
, "Forcing promiscuous mode on port:%d\n",
1157 } else if (prev_flags
& MLX4_EN_FLAG_FORCE_PROMISC
) {
1158 en_warn(priv
, "Stop forcing promiscuous mode on port:%d\n",
1163 static void mlx4_en_do_set_rx_mode(struct work_struct
*work
)
1165 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1167 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1168 struct net_device
*dev
= priv
->dev
;
1170 mutex_lock(&mdev
->state_lock
);
1171 if (!mdev
->device_up
) {
1172 en_dbg(HW
, priv
, "Card is not up, ignoring rx mode change.\n");
1175 if (!priv
->port_up
) {
1176 en_dbg(HW
, priv
, "Port is down, ignoring rx mode change.\n");
1180 if (!netif_carrier_ok(dev
)) {
1181 if (!mlx4_en_QUERY_PORT(mdev
, priv
->port
)) {
1182 if (priv
->port_state
.link_state
) {
1183 priv
->last_link_state
= MLX4_DEV_EVENT_PORT_UP
;
1184 netif_carrier_on(dev
);
1185 en_dbg(LINK
, priv
, "Link Up\n");
1190 if (dev
->priv_flags
& IFF_UNICAST_FLT
)
1191 mlx4_en_do_uc_filter(priv
, dev
, mdev
);
1193 /* Promsicuous mode: disable all filters */
1194 if ((dev
->flags
& IFF_PROMISC
) ||
1195 (priv
->flags
& MLX4_EN_FLAG_FORCE_PROMISC
)) {
1196 mlx4_en_set_promisc_mode(priv
, mdev
);
1200 /* Not in promiscuous mode */
1201 if (priv
->flags
& MLX4_EN_FLAG_PROMISC
)
1202 mlx4_en_clear_promisc_mode(priv
, mdev
);
1204 mlx4_en_do_multicast(priv
, dev
, mdev
);
1206 mutex_unlock(&mdev
->state_lock
);
1209 #ifdef CONFIG_NET_POLL_CONTROLLER
1210 static void mlx4_en_netpoll(struct net_device
*dev
)
1212 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1213 struct mlx4_en_cq
*cq
;
1216 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1217 cq
= priv
->tx_cq
[i
];
1218 napi_schedule(&cq
->napi
);
1223 static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv
*priv
)
1227 int *qpn
= &priv
->base_qpn
;
1228 struct mlx4_mac_entry
*entry
;
1230 err
= mlx4_en_uc_steer_add(priv
, priv
->dev
->dev_addr
, qpn
, ®_id
);
1234 err
= mlx4_en_tunnel_steer_add(priv
, priv
->dev
->dev_addr
, *qpn
,
1235 &priv
->tunnel_reg_id
);
1239 entry
= kmalloc(sizeof(*entry
), GFP_KERNEL
);
1245 memcpy(entry
->mac
, priv
->dev
->dev_addr
, sizeof(entry
->mac
));
1246 memcpy(priv
->current_mac
, entry
->mac
, sizeof(priv
->current_mac
));
1247 entry
->reg_id
= reg_id
;
1248 hlist_add_head_rcu(&entry
->hlist
,
1249 &priv
->mac_hash
[entry
->mac
[MLX4_EN_MAC_HASH_IDX
]]);
1254 if (priv
->tunnel_reg_id
)
1255 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
1258 mlx4_en_uc_steer_release(priv
, priv
->dev
->dev_addr
, *qpn
, reg_id
);
1262 static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv
*priv
)
1266 int qpn
= priv
->base_qpn
;
1267 struct hlist_head
*bucket
;
1268 struct hlist_node
*tmp
;
1269 struct mlx4_mac_entry
*entry
;
1271 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
) {
1272 bucket
= &priv
->mac_hash
[i
];
1273 hlist_for_each_entry_safe(entry
, tmp
, bucket
, hlist
) {
1274 mac
= mlx4_mac_to_u64(entry
->mac
);
1275 en_dbg(DRV
, priv
, "Registering MAC:%pM for deleting\n",
1277 mlx4_en_uc_steer_release(priv
, entry
->mac
,
1278 qpn
, entry
->reg_id
);
1280 mlx4_unregister_mac(priv
->mdev
->dev
, priv
->port
, mac
);
1281 hlist_del_rcu(&entry
->hlist
);
1282 kfree_rcu(entry
, rcu
);
1286 if (priv
->tunnel_reg_id
) {
1287 mlx4_flow_detach(priv
->mdev
->dev
, priv
->tunnel_reg_id
);
1288 priv
->tunnel_reg_id
= 0;
1292 static void mlx4_en_tx_timeout(struct net_device
*dev
)
1294 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1295 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1298 if (netif_msg_timer(priv
))
1299 en_warn(priv
, "Tx timeout called on port:%d\n", priv
->port
);
1301 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1302 if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev
, i
)))
1304 en_warn(priv
, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
1305 i
, priv
->tx_ring
[i
]->qpn
, priv
->tx_ring
[i
]->cqn
,
1306 priv
->tx_ring
[i
]->cons
, priv
->tx_ring
[i
]->prod
);
1309 priv
->port_stats
.tx_timeout
++;
1310 en_dbg(DRV
, priv
, "Scheduling watchdog\n");
1311 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
1315 static struct rtnl_link_stats64
*
1316 mlx4_en_get_stats64(struct net_device
*dev
, struct rtnl_link_stats64
*stats
)
1318 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1320 spin_lock_bh(&priv
->stats_lock
);
1321 netdev_stats_to_stats64(stats
, &dev
->stats
);
1322 spin_unlock_bh(&priv
->stats_lock
);
1327 static void mlx4_en_set_default_moderation(struct mlx4_en_priv
*priv
)
1329 struct mlx4_en_cq
*cq
;
1332 /* If we haven't received a specific coalescing setting
1333 * (module param), we set the moderation parameters as follows:
1334 * - moder_cnt is set to the number of mtu sized packets to
1335 * satisfy our coalescing target.
1336 * - moder_time is set to a fixed value.
1338 priv
->rx_frames
= MLX4_EN_RX_COAL_TARGET
;
1339 priv
->rx_usecs
= MLX4_EN_RX_COAL_TIME
;
1340 priv
->tx_frames
= MLX4_EN_TX_COAL_PKTS
;
1341 priv
->tx_usecs
= MLX4_EN_TX_COAL_TIME
;
1342 en_dbg(INTR
, priv
, "Default coalesing params for mtu:%d - rx_frames:%d rx_usecs:%d\n",
1343 priv
->dev
->mtu
, priv
->rx_frames
, priv
->rx_usecs
);
1345 /* Setup cq moderation params */
1346 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1347 cq
= priv
->rx_cq
[i
];
1348 cq
->moder_cnt
= priv
->rx_frames
;
1349 cq
->moder_time
= priv
->rx_usecs
;
1350 priv
->last_moder_time
[i
] = MLX4_EN_AUTO_CONF
;
1351 priv
->last_moder_packets
[i
] = 0;
1352 priv
->last_moder_bytes
[i
] = 0;
1355 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1356 cq
= priv
->tx_cq
[i
];
1357 cq
->moder_cnt
= priv
->tx_frames
;
1358 cq
->moder_time
= priv
->tx_usecs
;
1361 /* Reset auto-moderation params */
1362 priv
->pkt_rate_low
= MLX4_EN_RX_RATE_LOW
;
1363 priv
->rx_usecs_low
= MLX4_EN_RX_COAL_TIME_LOW
;
1364 priv
->pkt_rate_high
= MLX4_EN_RX_RATE_HIGH
;
1365 priv
->rx_usecs_high
= MLX4_EN_RX_COAL_TIME_HIGH
;
1366 priv
->sample_interval
= MLX4_EN_SAMPLE_INTERVAL
;
1367 priv
->adaptive_rx_coal
= 1;
1368 priv
->last_moder_jiffies
= 0;
1369 priv
->last_moder_tx_packets
= 0;
1372 static void mlx4_en_auto_moderation(struct mlx4_en_priv
*priv
)
1374 unsigned long period
= (unsigned long) (jiffies
- priv
->last_moder_jiffies
);
1375 struct mlx4_en_cq
*cq
;
1376 unsigned long packets
;
1378 unsigned long avg_pkt_size
;
1379 unsigned long rx_packets
;
1380 unsigned long rx_bytes
;
1381 unsigned long rx_pkt_diff
;
1385 if (!priv
->adaptive_rx_coal
|| period
< priv
->sample_interval
* HZ
)
1388 for (ring
= 0; ring
< priv
->rx_ring_num
; ring
++) {
1389 spin_lock_bh(&priv
->stats_lock
);
1390 rx_packets
= priv
->rx_ring
[ring
]->packets
;
1391 rx_bytes
= priv
->rx_ring
[ring
]->bytes
;
1392 spin_unlock_bh(&priv
->stats_lock
);
1394 rx_pkt_diff
= ((unsigned long) (rx_packets
-
1395 priv
->last_moder_packets
[ring
]));
1396 packets
= rx_pkt_diff
;
1397 rate
= packets
* HZ
/ period
;
1398 avg_pkt_size
= packets
? ((unsigned long) (rx_bytes
-
1399 priv
->last_moder_bytes
[ring
])) / packets
: 0;
1401 /* Apply auto-moderation only when packet rate
1402 * exceeds a rate that it matters */
1403 if (rate
> (MLX4_EN_RX_RATE_THRESH
/ priv
->rx_ring_num
) &&
1404 avg_pkt_size
> MLX4_EN_AVG_PKT_SMALL
) {
1405 if (rate
< priv
->pkt_rate_low
)
1406 moder_time
= priv
->rx_usecs_low
;
1407 else if (rate
> priv
->pkt_rate_high
)
1408 moder_time
= priv
->rx_usecs_high
;
1410 moder_time
= (rate
- priv
->pkt_rate_low
) *
1411 (priv
->rx_usecs_high
- priv
->rx_usecs_low
) /
1412 (priv
->pkt_rate_high
- priv
->pkt_rate_low
) +
1415 moder_time
= priv
->rx_usecs_low
;
1418 if (moder_time
!= priv
->last_moder_time
[ring
]) {
1419 priv
->last_moder_time
[ring
] = moder_time
;
1420 cq
= priv
->rx_cq
[ring
];
1421 cq
->moder_time
= moder_time
;
1422 cq
->moder_cnt
= priv
->rx_frames
;
1423 err
= mlx4_en_set_cq_moder(priv
, cq
);
1425 en_err(priv
, "Failed modifying moderation for cq:%d\n",
1428 priv
->last_moder_packets
[ring
] = rx_packets
;
1429 priv
->last_moder_bytes
[ring
] = rx_bytes
;
1432 priv
->last_moder_jiffies
= jiffies
;
1435 static void mlx4_en_do_get_stats(struct work_struct
*work
)
1437 struct delayed_work
*delay
= to_delayed_work(work
);
1438 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1440 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1443 mutex_lock(&mdev
->state_lock
);
1444 if (mdev
->device_up
) {
1445 if (priv
->port_up
) {
1446 err
= mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 0);
1448 en_dbg(HW
, priv
, "Could not update stats\n");
1450 mlx4_en_auto_moderation(priv
);
1453 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
1455 if (mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
]) {
1456 mlx4_en_do_set_mac(priv
, priv
->current_mac
);
1457 mdev
->mac_removed
[MLX4_MAX_PORTS
+ 1 - priv
->port
] = 0;
1459 mutex_unlock(&mdev
->state_lock
);
1462 /* mlx4_en_service_task - Run service task for tasks that needed to be done
1465 static void mlx4_en_service_task(struct work_struct
*work
)
1467 struct delayed_work
*delay
= to_delayed_work(work
);
1468 struct mlx4_en_priv
*priv
= container_of(delay
, struct mlx4_en_priv
,
1470 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1472 mutex_lock(&mdev
->state_lock
);
1473 if (mdev
->device_up
) {
1474 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
1475 mlx4_en_ptp_overflow_check(mdev
);
1477 mlx4_en_recover_from_oom(priv
);
1478 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
1479 SERVICE_TASK_DELAY
);
1481 mutex_unlock(&mdev
->state_lock
);
1484 static void mlx4_en_linkstate(struct work_struct
*work
)
1486 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1488 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1489 int linkstate
= priv
->link_state
;
1491 mutex_lock(&mdev
->state_lock
);
1492 /* If observable port state changed set carrier state and
1493 * report to system log */
1494 if (priv
->last_link_state
!= linkstate
) {
1495 if (linkstate
== MLX4_DEV_EVENT_PORT_DOWN
) {
1496 en_info(priv
, "Link Down\n");
1497 netif_carrier_off(priv
->dev
);
1499 en_info(priv
, "Link Up\n");
1500 netif_carrier_on(priv
->dev
);
1503 priv
->last_link_state
= linkstate
;
1504 mutex_unlock(&mdev
->state_lock
);
1507 static int mlx4_en_init_affinity_hint(struct mlx4_en_priv
*priv
, int ring_idx
)
1509 struct mlx4_en_rx_ring
*ring
= priv
->rx_ring
[ring_idx
];
1510 int numa_node
= priv
->mdev
->dev
->numa_node
;
1512 if (!zalloc_cpumask_var(&ring
->affinity_mask
, GFP_KERNEL
))
1515 cpumask_set_cpu(cpumask_local_spread(ring_idx
, numa_node
),
1516 ring
->affinity_mask
);
1520 static void mlx4_en_free_affinity_hint(struct mlx4_en_priv
*priv
, int ring_idx
)
1522 free_cpumask_var(priv
->rx_ring
[ring_idx
]->affinity_mask
);
1525 static void mlx4_en_init_recycle_ring(struct mlx4_en_priv
*priv
,
1528 struct mlx4_en_tx_ring
*tx_ring
= priv
->tx_ring
[tx_ring_idx
];
1531 rr_index
= (priv
->xdp_ring_num
- priv
->tx_ring_num
) + tx_ring_idx
;
1532 if (rr_index
>= 0) {
1533 tx_ring
->free_tx_desc
= mlx4_en_recycle_tx_desc
;
1534 tx_ring
->recycle_ring
= priv
->rx_ring
[rr_index
];
1536 "Set tx_ring[%d]->recycle_ring = rx_ring[%d]\n",
1537 tx_ring_idx
, rr_index
);
1539 tx_ring
->recycle_ring
= NULL
;
1543 int mlx4_en_start_port(struct net_device
*dev
)
1545 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1546 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1547 struct mlx4_en_cq
*cq
;
1548 struct mlx4_en_tx_ring
*tx_ring
;
1554 u8 mc_list
[16] = {0};
1556 if (priv
->port_up
) {
1557 en_dbg(DRV
, priv
, "start port called while port already up\n");
1561 INIT_LIST_HEAD(&priv
->mc_list
);
1562 INIT_LIST_HEAD(&priv
->curr_list
);
1563 INIT_LIST_HEAD(&priv
->ethtool_list
);
1564 memset(&priv
->ethtool_rules
[0], 0,
1565 sizeof(struct ethtool_flow_id
) * MAX_NUM_OF_FS_RULES
);
1567 /* Calculate Rx buf size */
1568 dev
->mtu
= min(dev
->mtu
, priv
->max_mtu
);
1569 mlx4_en_calc_rx_buf(dev
);
1570 en_dbg(DRV
, priv
, "Rx buf size:%d\n", priv
->rx_skb_size
);
1572 /* Configure rx cq's and rings */
1573 err
= mlx4_en_activate_rx_rings(priv
);
1575 en_err(priv
, "Failed to activate RX rings\n");
1578 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1579 cq
= priv
->rx_cq
[i
];
1581 err
= mlx4_en_init_affinity_hint(priv
, i
);
1583 en_err(priv
, "Failed preparing IRQ affinity hint\n");
1587 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1589 en_err(priv
, "Failed activating Rx CQ\n");
1590 mlx4_en_free_affinity_hint(priv
, i
);
1594 for (j
= 0; j
< cq
->size
; j
++) {
1595 struct mlx4_cqe
*cqe
= NULL
;
1597 cqe
= mlx4_en_get_cqe(cq
->buf
, j
, priv
->cqe_size
) +
1599 cqe
->owner_sr_opcode
= MLX4_CQE_OWNER_MASK
;
1602 err
= mlx4_en_set_cq_moder(priv
, cq
);
1604 en_err(priv
, "Failed setting cq moderation parameters\n");
1605 mlx4_en_deactivate_cq(priv
, cq
);
1606 mlx4_en_free_affinity_hint(priv
, i
);
1609 mlx4_en_arm_cq(priv
, cq
);
1610 priv
->rx_ring
[i
]->cqn
= cq
->mcq
.cqn
;
1615 en_dbg(DRV
, priv
, "Getting qp number for port %d\n", priv
->port
);
1616 err
= mlx4_en_get_qp(priv
);
1618 en_err(priv
, "Failed getting eth qp\n");
1621 mdev
->mac_removed
[priv
->port
] = 0;
1623 priv
->counter_index
=
1624 mlx4_get_default_counter_index(mdev
->dev
, priv
->port
);
1626 err
= mlx4_en_config_rss_steer(priv
);
1628 en_err(priv
, "Failed configuring rss steering\n");
1632 err
= mlx4_en_create_drop_qp(priv
);
1636 /* Configure tx cq's and rings */
1637 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1639 cq
= priv
->tx_cq
[i
];
1640 err
= mlx4_en_activate_cq(priv
, cq
, i
);
1642 en_err(priv
, "Failed allocating Tx CQ\n");
1645 err
= mlx4_en_set_cq_moder(priv
, cq
);
1647 en_err(priv
, "Failed setting cq moderation parameters\n");
1648 mlx4_en_deactivate_cq(priv
, cq
);
1651 en_dbg(DRV
, priv
, "Resetting index of collapsed CQ:%d to -1\n", i
);
1652 cq
->buf
->wqe_index
= cpu_to_be16(0xffff);
1654 /* Configure ring */
1655 tx_ring
= priv
->tx_ring
[i
];
1656 err
= mlx4_en_activate_tx_ring(priv
, tx_ring
, cq
->mcq
.cqn
,
1657 i
/ priv
->num_tx_rings_p_up
);
1659 en_err(priv
, "Failed allocating Tx ring\n");
1660 mlx4_en_deactivate_cq(priv
, cq
);
1663 tx_ring
->tx_queue
= netdev_get_tx_queue(dev
, i
);
1665 mlx4_en_init_recycle_ring(priv
, i
);
1667 /* Arm CQ for TX completions */
1668 mlx4_en_arm_cq(priv
, cq
);
1670 /* Set initial ownership of all Tx TXBBs to SW (1) */
1671 for (j
= 0; j
< tx_ring
->buf_size
; j
+= STAMP_STRIDE
)
1672 *((u32
*) (tx_ring
->buf
+ j
)) = 0xffffffff;
1676 /* Configure port */
1677 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
1678 priv
->rx_skb_size
+ ETH_FCS_LEN
,
1679 priv
->prof
->tx_pause
,
1681 priv
->prof
->rx_pause
,
1682 priv
->prof
->rx_ppp
);
1684 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
1688 /* Set default qp number */
1689 err
= mlx4_SET_PORT_qpn_calc(mdev
->dev
, priv
->port
, priv
->base_qpn
, 0);
1691 en_err(priv
, "Failed setting default qp numbers\n");
1695 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
1696 err
= mlx4_SET_PORT_VXLAN(mdev
->dev
, priv
->port
, VXLAN_STEER_BY_OUTER_MAC
, 1);
1698 en_err(priv
, "Failed setting port L2 tunnel configuration, err %d\n",
1705 en_dbg(HW
, priv
, "Initializing port\n");
1706 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
1708 en_err(priv
, "Failed Initializing port\n");
1712 /* Set Unicast and VXLAN steering rules */
1713 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
&&
1714 mlx4_en_set_rss_steer_rules(priv
))
1715 mlx4_warn(mdev
, "Failed setting steering rules\n");
1717 /* Attach rx QP to bradcast address */
1718 eth_broadcast_addr(&mc_list
[10]);
1719 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1720 if (mlx4_multicast_attach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1721 priv
->port
, 0, MLX4_PROT_ETH
,
1722 &priv
->broadcast_id
))
1723 mlx4_warn(mdev
, "Failed Attaching Broadcast\n");
1725 /* Must redo promiscuous mode setup. */
1726 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
| MLX4_EN_FLAG_MC_PROMISC
);
1728 /* Schedule multicast task to populate multicast list */
1729 queue_work(mdev
->workqueue
, &priv
->rx_mode_task
);
1731 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
1732 udp_tunnel_get_rx_info(dev
);
1734 priv
->port_up
= true;
1735 netif_tx_start_all_queues(dev
);
1736 netif_device_attach(dev
);
1741 while (tx_index
--) {
1742 mlx4_en_deactivate_tx_ring(priv
, priv
->tx_ring
[tx_index
]);
1743 mlx4_en_deactivate_cq(priv
, priv
->tx_cq
[tx_index
]);
1745 mlx4_en_destroy_drop_qp(priv
);
1747 mlx4_en_release_rss_steer(priv
);
1749 mlx4_en_put_qp(priv
);
1751 while (rx_index
--) {
1752 mlx4_en_deactivate_cq(priv
, priv
->rx_cq
[rx_index
]);
1753 mlx4_en_free_affinity_hint(priv
, rx_index
);
1755 for (i
= 0; i
< priv
->rx_ring_num
; i
++)
1756 mlx4_en_deactivate_rx_ring(priv
, priv
->rx_ring
[i
]);
1758 return err
; /* need to close devices */
1762 void mlx4_en_stop_port(struct net_device
*dev
, int detach
)
1764 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1765 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1766 struct mlx4_en_mc_list
*mclist
, *tmp
;
1767 struct ethtool_flow_id
*flow
, *tmp_flow
;
1769 u8 mc_list
[16] = {0};
1771 if (!priv
->port_up
) {
1772 en_dbg(DRV
, priv
, "stop port called while port already down\n");
1777 mlx4_CLOSE_PORT(mdev
->dev
, priv
->port
);
1779 /* Synchronize with tx routine */
1780 netif_tx_lock_bh(dev
);
1782 netif_device_detach(dev
);
1783 netif_tx_stop_all_queues(dev
);
1784 netif_tx_unlock_bh(dev
);
1786 netif_tx_disable(dev
);
1788 /* Set port as not active */
1789 priv
->port_up
= false;
1790 priv
->counter_index
= MLX4_SINK_COUNTER_INDEX(mdev
->dev
);
1792 /* Promsicuous mode */
1793 if (mdev
->dev
->caps
.steering_mode
==
1794 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1795 priv
->flags
&= ~(MLX4_EN_FLAG_PROMISC
|
1796 MLX4_EN_FLAG_MC_PROMISC
);
1797 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1799 MLX4_FS_ALL_DEFAULT
);
1800 mlx4_flow_steer_promisc_remove(mdev
->dev
,
1802 MLX4_FS_MC_DEFAULT
);
1803 } else if (priv
->flags
& MLX4_EN_FLAG_PROMISC
) {
1804 priv
->flags
&= ~MLX4_EN_FLAG_PROMISC
;
1806 /* Disable promiscouos mode */
1807 mlx4_unicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1810 /* Disable Multicast promisc */
1811 if (priv
->flags
& MLX4_EN_FLAG_MC_PROMISC
) {
1812 mlx4_multicast_promisc_remove(mdev
->dev
, priv
->base_qpn
,
1814 priv
->flags
&= ~MLX4_EN_FLAG_MC_PROMISC
;
1818 /* Detach All multicasts */
1819 eth_broadcast_addr(&mc_list
[10]);
1820 mc_list
[5] = priv
->port
; /* needed for B0 steering support */
1821 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
, mc_list
,
1822 MLX4_PROT_ETH
, priv
->broadcast_id
);
1823 list_for_each_entry(mclist
, &priv
->curr_list
, list
) {
1824 memcpy(&mc_list
[10], mclist
->addr
, ETH_ALEN
);
1825 mc_list
[5] = priv
->port
;
1826 mlx4_multicast_detach(mdev
->dev
, &priv
->rss_map
.indir_qp
,
1827 mc_list
, MLX4_PROT_ETH
, mclist
->reg_id
);
1828 if (mclist
->tunnel_reg_id
)
1829 mlx4_flow_detach(mdev
->dev
, mclist
->tunnel_reg_id
);
1831 mlx4_en_clear_list(dev
);
1832 list_for_each_entry_safe(mclist
, tmp
, &priv
->curr_list
, list
) {
1833 list_del(&mclist
->list
);
1837 /* Flush multicast filter */
1838 mlx4_SET_MCAST_FLTR(mdev
->dev
, priv
->port
, 0, 1, MLX4_MCAST_CONFIG
);
1840 /* Remove flow steering rules for the port*/
1841 if (mdev
->dev
->caps
.steering_mode
==
1842 MLX4_STEERING_MODE_DEVICE_MANAGED
) {
1844 list_for_each_entry_safe(flow
, tmp_flow
,
1845 &priv
->ethtool_list
, list
) {
1846 mlx4_flow_detach(mdev
->dev
, flow
->id
);
1847 list_del(&flow
->list
);
1851 mlx4_en_destroy_drop_qp(priv
);
1854 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1855 mlx4_en_deactivate_tx_ring(priv
, priv
->tx_ring
[i
]);
1856 mlx4_en_deactivate_cq(priv
, priv
->tx_cq
[i
]);
1860 for (i
= 0; i
< priv
->tx_ring_num
; i
++)
1861 mlx4_en_free_tx_buf(dev
, priv
->tx_ring
[i
]);
1863 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
1864 mlx4_en_delete_rss_steer_rules(priv
);
1867 mlx4_en_release_rss_steer(priv
);
1869 /* Unregister Mac address for the port */
1870 mlx4_en_put_qp(priv
);
1871 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN
))
1872 mdev
->mac_removed
[priv
->port
] = 1;
1875 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1876 struct mlx4_en_cq
*cq
= priv
->rx_cq
[i
];
1878 napi_synchronize(&cq
->napi
);
1879 mlx4_en_deactivate_rx_ring(priv
, priv
->rx_ring
[i
]);
1880 mlx4_en_deactivate_cq(priv
, cq
);
1882 mlx4_en_free_affinity_hint(priv
, i
);
1886 static void mlx4_en_restart(struct work_struct
*work
)
1888 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
1890 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1891 struct net_device
*dev
= priv
->dev
;
1893 en_dbg(DRV
, priv
, "Watchdog task called for port %d\n", priv
->port
);
1896 mutex_lock(&mdev
->state_lock
);
1897 if (priv
->port_up
) {
1898 mlx4_en_stop_port(dev
, 1);
1899 if (mlx4_en_start_port(dev
))
1900 en_err(priv
, "Failed restarting port %d\n", priv
->port
);
1902 mutex_unlock(&mdev
->state_lock
);
1906 static void mlx4_en_clear_stats(struct net_device
*dev
)
1908 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1909 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1912 if (mlx4_en_DUMP_ETH_STATS(mdev
, priv
->port
, 1))
1913 en_dbg(HW
, priv
, "Failed dumping statistics\n");
1915 memset(&priv
->pstats
, 0, sizeof(priv
->pstats
));
1916 memset(&priv
->pkstats
, 0, sizeof(priv
->pkstats
));
1917 memset(&priv
->port_stats
, 0, sizeof(priv
->port_stats
));
1918 memset(&priv
->rx_flowstats
, 0, sizeof(priv
->rx_flowstats
));
1919 memset(&priv
->tx_flowstats
, 0, sizeof(priv
->tx_flowstats
));
1920 memset(&priv
->rx_priority_flowstats
, 0,
1921 sizeof(priv
->rx_priority_flowstats
));
1922 memset(&priv
->tx_priority_flowstats
, 0,
1923 sizeof(priv
->tx_priority_flowstats
));
1924 memset(&priv
->pf_stats
, 0, sizeof(priv
->pf_stats
));
1926 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1927 priv
->tx_ring
[i
]->bytes
= 0;
1928 priv
->tx_ring
[i
]->packets
= 0;
1929 priv
->tx_ring
[i
]->tx_csum
= 0;
1930 priv
->tx_ring
[i
]->tx_dropped
= 0;
1931 priv
->tx_ring
[i
]->queue_stopped
= 0;
1932 priv
->tx_ring
[i
]->wake_queue
= 0;
1933 priv
->tx_ring
[i
]->tso_packets
= 0;
1934 priv
->tx_ring
[i
]->xmit_more
= 0;
1936 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
1937 priv
->rx_ring
[i
]->bytes
= 0;
1938 priv
->rx_ring
[i
]->packets
= 0;
1939 priv
->rx_ring
[i
]->csum_ok
= 0;
1940 priv
->rx_ring
[i
]->csum_none
= 0;
1941 priv
->rx_ring
[i
]->csum_complete
= 0;
1945 static int mlx4_en_open(struct net_device
*dev
)
1947 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1948 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1951 mutex_lock(&mdev
->state_lock
);
1953 if (!mdev
->device_up
) {
1954 en_err(priv
, "Cannot open - device down/disabled\n");
1959 /* Reset HW statistics and SW counters */
1960 mlx4_en_clear_stats(dev
);
1962 err
= mlx4_en_start_port(dev
);
1964 en_err(priv
, "Failed starting port:%d\n", priv
->port
);
1967 mutex_unlock(&mdev
->state_lock
);
1972 static int mlx4_en_close(struct net_device
*dev
)
1974 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
1975 struct mlx4_en_dev
*mdev
= priv
->mdev
;
1977 en_dbg(IFDOWN
, priv
, "Close port called\n");
1979 mutex_lock(&mdev
->state_lock
);
1981 mlx4_en_stop_port(dev
, 0);
1982 netif_carrier_off(dev
);
1984 mutex_unlock(&mdev
->state_lock
);
1988 static void mlx4_en_free_resources(struct mlx4_en_priv
*priv
)
1992 #ifdef CONFIG_RFS_ACCEL
1993 priv
->dev
->rx_cpu_rmap
= NULL
;
1996 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
1997 if (priv
->tx_ring
&& priv
->tx_ring
[i
])
1998 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
1999 if (priv
->tx_cq
&& priv
->tx_cq
[i
])
2000 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
2003 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2004 if (priv
->rx_ring
[i
])
2005 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
2006 priv
->prof
->rx_ring_size
, priv
->stride
);
2008 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
2013 static int mlx4_en_alloc_resources(struct mlx4_en_priv
*priv
)
2015 struct mlx4_en_port_profile
*prof
= priv
->prof
;
2019 /* Create tx Rings */
2020 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
2021 node
= cpu_to_node(i
% num_online_cpus());
2022 if (mlx4_en_create_cq(priv
, &priv
->tx_cq
[i
],
2023 prof
->tx_ring_size
, i
, TX
, node
))
2026 if (mlx4_en_create_tx_ring(priv
, &priv
->tx_ring
[i
],
2027 prof
->tx_ring_size
, TXBB_SIZE
,
2032 /* Create rx Rings */
2033 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2034 node
= cpu_to_node(i
% num_online_cpus());
2035 if (mlx4_en_create_cq(priv
, &priv
->rx_cq
[i
],
2036 prof
->rx_ring_size
, i
, RX
, node
))
2039 if (mlx4_en_create_rx_ring(priv
, &priv
->rx_ring
[i
],
2040 prof
->rx_ring_size
, priv
->stride
,
2045 #ifdef CONFIG_RFS_ACCEL
2046 priv
->dev
->rx_cpu_rmap
= mlx4_get_cpu_rmap(priv
->mdev
->dev
, priv
->port
);
2052 en_err(priv
, "Failed to allocate NIC resources\n");
2053 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2054 if (priv
->rx_ring
[i
])
2055 mlx4_en_destroy_rx_ring(priv
, &priv
->rx_ring
[i
],
2059 mlx4_en_destroy_cq(priv
, &priv
->rx_cq
[i
]);
2061 for (i
= 0; i
< priv
->tx_ring_num
; i
++) {
2062 if (priv
->tx_ring
[i
])
2063 mlx4_en_destroy_tx_ring(priv
, &priv
->tx_ring
[i
]);
2065 mlx4_en_destroy_cq(priv
, &priv
->tx_cq
[i
]);
2070 static void mlx4_en_shutdown(struct net_device
*dev
)
2073 netif_device_detach(dev
);
2078 static int mlx4_en_copy_priv(struct mlx4_en_priv
*dst
,
2079 struct mlx4_en_priv
*src
,
2080 struct mlx4_en_port_profile
*prof
)
2082 memcpy(&dst
->hwtstamp_config
, &prof
->hwtstamp_config
,
2083 sizeof(dst
->hwtstamp_config
));
2084 dst
->num_tx_rings_p_up
= src
->mdev
->profile
.num_tx_rings_p_up
;
2085 dst
->tx_ring_num
= prof
->tx_ring_num
;
2086 dst
->rx_ring_num
= prof
->rx_ring_num
;
2087 dst
->flags
= prof
->flags
;
2088 dst
->mdev
= src
->mdev
;
2089 dst
->port
= src
->port
;
2090 dst
->dev
= src
->dev
;
2092 dst
->stride
= roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc
) +
2093 DS_SIZE
* MLX4_EN_MAX_RX_FRAGS
);
2095 dst
->tx_ring
= kzalloc(sizeof(struct mlx4_en_tx_ring
*) * MAX_TX_RINGS
,
2100 dst
->tx_cq
= kzalloc(sizeof(struct mlx4_en_cq
*) * MAX_TX_RINGS
,
2103 kfree(dst
->tx_ring
);
2109 static void mlx4_en_update_priv(struct mlx4_en_priv
*dst
,
2110 struct mlx4_en_priv
*src
)
2112 memcpy(dst
->rx_ring
, src
->rx_ring
,
2113 sizeof(struct mlx4_en_rx_ring
*) * src
->rx_ring_num
);
2114 memcpy(dst
->rx_cq
, src
->rx_cq
,
2115 sizeof(struct mlx4_en_cq
*) * src
->rx_ring_num
);
2116 memcpy(&dst
->hwtstamp_config
, &src
->hwtstamp_config
,
2117 sizeof(dst
->hwtstamp_config
));
2118 dst
->tx_ring_num
= src
->tx_ring_num
;
2119 dst
->rx_ring_num
= src
->rx_ring_num
;
2120 dst
->tx_ring
= src
->tx_ring
;
2121 dst
->tx_cq
= src
->tx_cq
;
2122 memcpy(dst
->prof
, src
->prof
, sizeof(struct mlx4_en_port_profile
));
2125 int mlx4_en_try_alloc_resources(struct mlx4_en_priv
*priv
,
2126 struct mlx4_en_priv
*tmp
,
2127 struct mlx4_en_port_profile
*prof
)
2129 mlx4_en_copy_priv(tmp
, priv
, prof
);
2131 if (mlx4_en_alloc_resources(tmp
)) {
2133 "%s: Resource allocation failed, using previous configuration\n",
2135 kfree(tmp
->tx_ring
);
2142 void mlx4_en_safe_replace_resources(struct mlx4_en_priv
*priv
,
2143 struct mlx4_en_priv
*tmp
)
2145 mlx4_en_free_resources(priv
);
2146 mlx4_en_update_priv(priv
, tmp
);
2149 void mlx4_en_destroy_netdev(struct net_device
*dev
)
2151 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2152 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2153 bool shutdown
= mdev
->dev
->persist
->interface_state
&
2154 MLX4_INTERFACE_STATE_SHUTDOWN
;
2156 en_dbg(DRV
, priv
, "Destroying netdev on port:%d\n", priv
->port
);
2158 /* Unregister device - this will close the port if it was up */
2159 if (priv
->registered
) {
2160 devlink_port_type_clear(mlx4_get_devlink_port(mdev
->dev
,
2163 mlx4_en_shutdown(dev
);
2165 unregister_netdev(dev
);
2168 if (priv
->allocated
)
2169 mlx4_free_hwq_res(mdev
->dev
, &priv
->res
, MLX4_EN_PAGE_SIZE
);
2171 cancel_delayed_work(&priv
->stats_task
);
2172 cancel_delayed_work(&priv
->service_task
);
2173 /* flush any pending task for this netdev */
2174 flush_workqueue(mdev
->workqueue
);
2176 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
2177 mlx4_en_remove_timestamp(mdev
);
2179 /* Detach the netdev so tasks would not attempt to access it */
2180 mutex_lock(&mdev
->state_lock
);
2181 mdev
->pndev
[priv
->port
] = NULL
;
2182 mdev
->upper
[priv
->port
] = NULL
;
2183 mutex_unlock(&mdev
->state_lock
);
2185 #ifdef CONFIG_RFS_ACCEL
2186 mlx4_en_cleanup_filters(priv
);
2189 mlx4_en_free_resources(priv
);
2191 kfree(priv
->tx_ring
);
2198 static int mlx4_en_change_mtu(struct net_device
*dev
, int new_mtu
)
2200 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2201 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2204 en_dbg(DRV
, priv
, "Change MTU called - current:%d new:%d\n",
2207 if ((new_mtu
< MLX4_EN_MIN_MTU
) || (new_mtu
> priv
->max_mtu
)) {
2208 en_err(priv
, "Bad MTU size:%d.\n", new_mtu
);
2211 if (priv
->xdp_ring_num
&& MLX4_EN_EFF_MTU(new_mtu
) > FRAG_SZ0
) {
2212 en_err(priv
, "MTU size:%d requires frags but XDP running\n",
2218 if (netif_running(dev
)) {
2219 mutex_lock(&mdev
->state_lock
);
2220 if (!mdev
->device_up
) {
2221 /* NIC is probably restarting - let watchdog task reset
2223 en_dbg(DRV
, priv
, "Change MTU called with card down!?\n");
2225 mlx4_en_stop_port(dev
, 1);
2226 err
= mlx4_en_start_port(dev
);
2228 en_err(priv
, "Failed restarting port:%d\n",
2230 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
2233 mutex_unlock(&mdev
->state_lock
);
2238 static int mlx4_en_hwtstamp_set(struct net_device
*dev
, struct ifreq
*ifr
)
2240 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2241 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2242 struct hwtstamp_config config
;
2244 if (copy_from_user(&config
, ifr
->ifr_data
, sizeof(config
)))
2247 /* reserved for future extensions */
2251 /* device doesn't support time stamping */
2252 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
))
2255 /* TX HW timestamp */
2256 switch (config
.tx_type
) {
2257 case HWTSTAMP_TX_OFF
:
2258 case HWTSTAMP_TX_ON
:
2264 /* RX HW timestamp */
2265 switch (config
.rx_filter
) {
2266 case HWTSTAMP_FILTER_NONE
:
2268 case HWTSTAMP_FILTER_ALL
:
2269 case HWTSTAMP_FILTER_SOME
:
2270 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT
:
2271 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC
:
2272 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ
:
2273 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT
:
2274 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC
:
2275 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ
:
2276 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT
:
2277 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC
:
2278 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ
:
2279 case HWTSTAMP_FILTER_PTP_V2_EVENT
:
2280 case HWTSTAMP_FILTER_PTP_V2_SYNC
:
2281 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
:
2282 config
.rx_filter
= HWTSTAMP_FILTER_ALL
;
2288 if (mlx4_en_reset_config(dev
, config
, dev
->features
)) {
2289 config
.tx_type
= HWTSTAMP_TX_OFF
;
2290 config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
2293 return copy_to_user(ifr
->ifr_data
, &config
,
2294 sizeof(config
)) ? -EFAULT
: 0;
2297 static int mlx4_en_hwtstamp_get(struct net_device
*dev
, struct ifreq
*ifr
)
2299 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2301 return copy_to_user(ifr
->ifr_data
, &priv
->hwtstamp_config
,
2302 sizeof(priv
->hwtstamp_config
)) ? -EFAULT
: 0;
2305 static int mlx4_en_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2309 return mlx4_en_hwtstamp_set(dev
, ifr
);
2311 return mlx4_en_hwtstamp_get(dev
, ifr
);
2317 static netdev_features_t
mlx4_en_fix_features(struct net_device
*netdev
,
2318 netdev_features_t features
)
2320 struct mlx4_en_priv
*en_priv
= netdev_priv(netdev
);
2321 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2323 /* Since there is no support for separate RX C-TAG/S-TAG vlan accel
2324 * enable/disable make sure S-TAG flag is always in same state as
2327 if (features
& NETIF_F_HW_VLAN_CTAG_RX
&&
2328 !(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
))
2329 features
|= NETIF_F_HW_VLAN_STAG_RX
;
2331 features
&= ~NETIF_F_HW_VLAN_STAG_RX
;
2336 static int mlx4_en_set_features(struct net_device
*netdev
,
2337 netdev_features_t features
)
2339 struct mlx4_en_priv
*priv
= netdev_priv(netdev
);
2343 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_RXFCS
)) {
2344 en_info(priv
, "Turn %s RX-FCS\n",
2345 (features
& NETIF_F_RXFCS
) ? "ON" : "OFF");
2349 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_RXALL
)) {
2350 u8 ignore_fcs_value
= (features
& NETIF_F_RXALL
) ? 1 : 0;
2352 en_info(priv
, "Turn %s RX-ALL\n",
2353 ignore_fcs_value
? "ON" : "OFF");
2354 ret
= mlx4_SET_PORT_fcs_check(priv
->mdev
->dev
,
2355 priv
->port
, ignore_fcs_value
);
2360 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_CTAG_RX
)) {
2361 en_info(priv
, "Turn %s RX vlan strip offload\n",
2362 (features
& NETIF_F_HW_VLAN_CTAG_RX
) ? "ON" : "OFF");
2366 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_CTAG_TX
))
2367 en_info(priv
, "Turn %s TX vlan strip offload\n",
2368 (features
& NETIF_F_HW_VLAN_CTAG_TX
) ? "ON" : "OFF");
2370 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_HW_VLAN_STAG_TX
))
2371 en_info(priv
, "Turn %s TX S-VLAN strip offload\n",
2372 (features
& NETIF_F_HW_VLAN_STAG_TX
) ? "ON" : "OFF");
2374 if (DEV_FEATURE_CHANGED(netdev
, features
, NETIF_F_LOOPBACK
)) {
2375 en_info(priv
, "Turn %s loopback\n",
2376 (features
& NETIF_F_LOOPBACK
) ? "ON" : "OFF");
2377 mlx4_en_update_loopback_state(netdev
, features
);
2381 ret
= mlx4_en_reset_config(netdev
, priv
->hwtstamp_config
,
2390 static int mlx4_en_set_vf_mac(struct net_device
*dev
, int queue
, u8
*mac
)
2392 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2393 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2394 u64 mac_u64
= mlx4_mac_to_u64(mac
);
2396 if (is_multicast_ether_addr(mac
))
2399 return mlx4_set_vf_mac(mdev
->dev
, en_priv
->port
, queue
, mac_u64
);
2402 static int mlx4_en_set_vf_vlan(struct net_device
*dev
, int vf
, u16 vlan
, u8 qos
)
2404 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2405 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2407 return mlx4_set_vf_vlan(mdev
->dev
, en_priv
->port
, vf
, vlan
, qos
);
2410 static int mlx4_en_set_vf_rate(struct net_device
*dev
, int vf
, int min_tx_rate
,
2413 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2414 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2416 return mlx4_set_vf_rate(mdev
->dev
, en_priv
->port
, vf
, min_tx_rate
,
2420 static int mlx4_en_set_vf_spoofchk(struct net_device
*dev
, int vf
, bool setting
)
2422 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2423 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2425 return mlx4_set_vf_spoofchk(mdev
->dev
, en_priv
->port
, vf
, setting
);
2428 static int mlx4_en_get_vf_config(struct net_device
*dev
, int vf
, struct ifla_vf_info
*ivf
)
2430 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2431 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2433 return mlx4_get_vf_config(mdev
->dev
, en_priv
->port
, vf
, ivf
);
2436 static int mlx4_en_set_vf_link_state(struct net_device
*dev
, int vf
, int link_state
)
2438 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2439 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2441 return mlx4_set_vf_link_state(mdev
->dev
, en_priv
->port
, vf
, link_state
);
2444 static int mlx4_en_get_vf_stats(struct net_device
*dev
, int vf
,
2445 struct ifla_vf_stats
*vf_stats
)
2447 struct mlx4_en_priv
*en_priv
= netdev_priv(dev
);
2448 struct mlx4_en_dev
*mdev
= en_priv
->mdev
;
2450 return mlx4_get_vf_stats(mdev
->dev
, en_priv
->port
, vf
, vf_stats
);
2453 #define PORT_ID_BYTE_LEN 8
2454 static int mlx4_en_get_phys_port_id(struct net_device
*dev
,
2455 struct netdev_phys_item_id
*ppid
)
2457 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2458 struct mlx4_dev
*mdev
= priv
->mdev
->dev
;
2460 u64 phys_port_id
= mdev
->caps
.phys_port_id
[priv
->port
];
2465 ppid
->id_len
= sizeof(phys_port_id
);
2466 for (i
= PORT_ID_BYTE_LEN
- 1; i
>= 0; --i
) {
2467 ppid
->id
[i
] = phys_port_id
& 0xff;
2473 static void mlx4_en_add_vxlan_offloads(struct work_struct
*work
)
2476 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
2479 ret
= mlx4_config_vxlan_port(priv
->mdev
->dev
, priv
->vxlan_port
);
2483 ret
= mlx4_SET_PORT_VXLAN(priv
->mdev
->dev
, priv
->port
,
2484 VXLAN_STEER_BY_OUTER_MAC
, 1);
2487 en_err(priv
, "failed setting L2 tunnel configuration ret %d\n", ret
);
2492 priv
->dev
->hw_enc_features
|= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2494 NETIF_F_TSO
| NETIF_F_TSO6
|
2495 NETIF_F_GSO_UDP_TUNNEL
|
2496 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
2497 NETIF_F_GSO_PARTIAL
;
2500 static void mlx4_en_del_vxlan_offloads(struct work_struct
*work
)
2503 struct mlx4_en_priv
*priv
= container_of(work
, struct mlx4_en_priv
,
2505 /* unset offloads */
2506 priv
->dev
->hw_enc_features
&= ~(NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2508 NETIF_F_TSO
| NETIF_F_TSO6
|
2509 NETIF_F_GSO_UDP_TUNNEL
|
2510 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
2511 NETIF_F_GSO_PARTIAL
);
2513 ret
= mlx4_SET_PORT_VXLAN(priv
->mdev
->dev
, priv
->port
,
2514 VXLAN_STEER_BY_OUTER_MAC
, 0);
2516 en_err(priv
, "failed setting L2 tunnel configuration ret %d\n", ret
);
2518 priv
->vxlan_port
= 0;
2521 static void mlx4_en_add_vxlan_port(struct net_device
*dev
,
2522 struct udp_tunnel_info
*ti
)
2524 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2525 __be16 port
= ti
->port
;
2526 __be16 current_port
;
2528 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
2531 if (ti
->sa_family
!= AF_INET
)
2534 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
2537 current_port
= priv
->vxlan_port
;
2538 if (current_port
&& current_port
!= port
) {
2539 en_warn(priv
, "vxlan port %d configured, can't add port %d\n",
2540 ntohs(current_port
), ntohs(port
));
2544 priv
->vxlan_port
= port
;
2545 queue_work(priv
->mdev
->workqueue
, &priv
->vxlan_add_task
);
2548 static void mlx4_en_del_vxlan_port(struct net_device
*dev
,
2549 struct udp_tunnel_info
*ti
)
2551 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2552 __be16 port
= ti
->port
;
2553 __be16 current_port
;
2555 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
2558 if (ti
->sa_family
!= AF_INET
)
2561 if (priv
->mdev
->dev
->caps
.tunnel_offload_mode
!= MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
)
2564 current_port
= priv
->vxlan_port
;
2565 if (current_port
!= port
) {
2566 en_dbg(DRV
, priv
, "vxlan port %d isn't configured, ignoring\n", ntohs(port
));
2570 queue_work(priv
->mdev
->workqueue
, &priv
->vxlan_del_task
);
2573 static netdev_features_t
mlx4_en_features_check(struct sk_buff
*skb
,
2574 struct net_device
*dev
,
2575 netdev_features_t features
)
2577 features
= vlan_features_check(skb
, features
);
2578 features
= vxlan_features_check(skb
, features
);
2580 /* The ConnectX-3 doesn't support outer IPv6 checksums but it does
2581 * support inner IPv6 checksums and segmentation so we need to
2582 * strip that feature if this is an IPv6 encapsulated frame.
2584 if (skb
->encapsulation
&&
2585 (skb
->ip_summed
== CHECKSUM_PARTIAL
)) {
2586 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2588 if (!priv
->vxlan_port
||
2589 (ip_hdr(skb
)->version
!= 4) ||
2590 (udp_hdr(skb
)->dest
!= priv
->vxlan_port
))
2591 features
&= ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
2597 static int mlx4_en_set_tx_maxrate(struct net_device
*dev
, int queue_index
, u32 maxrate
)
2599 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2600 struct mlx4_en_tx_ring
*tx_ring
= priv
->tx_ring
[queue_index
];
2601 struct mlx4_update_qp_params params
;
2604 if (!(priv
->mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT
))
2607 /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */
2608 if (maxrate
>> 12) {
2609 params
.rate_unit
= MLX4_QP_RATE_LIMIT_GBS
;
2610 params
.rate_val
= maxrate
/ 1000;
2611 } else if (maxrate
) {
2612 params
.rate_unit
= MLX4_QP_RATE_LIMIT_MBS
;
2613 params
.rate_val
= maxrate
;
2614 } else { /* zero serves to revoke the QP rate-limitation */
2615 params
.rate_unit
= 0;
2616 params
.rate_val
= 0;
2619 err
= mlx4_update_qp(priv
->mdev
->dev
, tx_ring
->qpn
, MLX4_UPDATE_QP_RATE_LIMIT
,
2624 static int mlx4_xdp_set(struct net_device
*dev
, struct bpf_prog
*prog
)
2626 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2627 struct mlx4_en_dev
*mdev
= priv
->mdev
;
2628 struct bpf_prog
*old_prog
;
2634 xdp_ring_num
= prog
? ALIGN(priv
->rx_ring_num
, MLX4_EN_NUM_UP
) : 0;
2636 /* No need to reconfigure buffers when simply swapping the
2637 * program for a new one.
2639 if (priv
->xdp_ring_num
== xdp_ring_num
) {
2641 prog
= bpf_prog_add(prog
, priv
->rx_ring_num
- 1);
2643 return PTR_ERR(prog
);
2645 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2646 /* This xchg is paired with READ_ONCE in the fastpath */
2647 old_prog
= xchg(&priv
->rx_ring
[i
]->xdp_prog
, prog
);
2649 bpf_prog_put(old_prog
);
2654 if (priv
->num_frags
> 1) {
2655 en_err(priv
, "Cannot set XDP if MTU requires multiple frags\n");
2659 if (priv
->tx_ring_num
< xdp_ring_num
+ MLX4_EN_NUM_UP
) {
2661 "Minimum %d tx channels required to run XDP\n",
2662 (xdp_ring_num
+ MLX4_EN_NUM_UP
) / MLX4_EN_NUM_UP
);
2667 prog
= bpf_prog_add(prog
, priv
->rx_ring_num
- 1);
2669 return PTR_ERR(prog
);
2672 mutex_lock(&mdev
->state_lock
);
2673 if (priv
->port_up
) {
2675 mlx4_en_stop_port(dev
, 1);
2678 priv
->xdp_ring_num
= xdp_ring_num
;
2679 netif_set_real_num_tx_queues(dev
, priv
->tx_ring_num
-
2680 priv
->xdp_ring_num
);
2682 for (i
= 0; i
< priv
->rx_ring_num
; i
++) {
2683 old_prog
= xchg(&priv
->rx_ring
[i
]->xdp_prog
, prog
);
2685 bpf_prog_put(old_prog
);
2689 err
= mlx4_en_start_port(dev
);
2691 en_err(priv
, "Failed starting port %d for XDP change\n",
2693 queue_work(mdev
->workqueue
, &priv
->watchdog_task
);
2697 mutex_unlock(&mdev
->state_lock
);
2701 static bool mlx4_xdp_attached(struct net_device
*dev
)
2703 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
2705 return !!priv
->xdp_ring_num
;
2708 static int mlx4_xdp(struct net_device
*dev
, struct netdev_xdp
*xdp
)
2710 switch (xdp
->command
) {
2711 case XDP_SETUP_PROG
:
2712 return mlx4_xdp_set(dev
, xdp
->prog
);
2713 case XDP_QUERY_PROG
:
2714 xdp
->prog_attached
= mlx4_xdp_attached(dev
);
2721 static const struct net_device_ops mlx4_netdev_ops
= {
2722 .ndo_open
= mlx4_en_open
,
2723 .ndo_stop
= mlx4_en_close
,
2724 .ndo_start_xmit
= mlx4_en_xmit
,
2725 .ndo_select_queue
= mlx4_en_select_queue
,
2726 .ndo_get_stats64
= mlx4_en_get_stats64
,
2727 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2728 .ndo_set_mac_address
= mlx4_en_set_mac
,
2729 .ndo_validate_addr
= eth_validate_addr
,
2730 .ndo_change_mtu
= mlx4_en_change_mtu
,
2731 .ndo_do_ioctl
= mlx4_en_ioctl
,
2732 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2733 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2734 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2735 #ifdef CONFIG_NET_POLL_CONTROLLER
2736 .ndo_poll_controller
= mlx4_en_netpoll
,
2738 .ndo_set_features
= mlx4_en_set_features
,
2739 .ndo_fix_features
= mlx4_en_fix_features
,
2740 .ndo_setup_tc
= __mlx4_en_setup_tc
,
2741 #ifdef CONFIG_RFS_ACCEL
2742 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2744 .ndo_get_phys_port_id
= mlx4_en_get_phys_port_id
,
2745 .ndo_udp_tunnel_add
= mlx4_en_add_vxlan_port
,
2746 .ndo_udp_tunnel_del
= mlx4_en_del_vxlan_port
,
2747 .ndo_features_check
= mlx4_en_features_check
,
2748 .ndo_set_tx_maxrate
= mlx4_en_set_tx_maxrate
,
2749 .ndo_xdp
= mlx4_xdp
,
2752 static const struct net_device_ops mlx4_netdev_ops_master
= {
2753 .ndo_open
= mlx4_en_open
,
2754 .ndo_stop
= mlx4_en_close
,
2755 .ndo_start_xmit
= mlx4_en_xmit
,
2756 .ndo_select_queue
= mlx4_en_select_queue
,
2757 .ndo_get_stats64
= mlx4_en_get_stats64
,
2758 .ndo_set_rx_mode
= mlx4_en_set_rx_mode
,
2759 .ndo_set_mac_address
= mlx4_en_set_mac
,
2760 .ndo_validate_addr
= eth_validate_addr
,
2761 .ndo_change_mtu
= mlx4_en_change_mtu
,
2762 .ndo_tx_timeout
= mlx4_en_tx_timeout
,
2763 .ndo_vlan_rx_add_vid
= mlx4_en_vlan_rx_add_vid
,
2764 .ndo_vlan_rx_kill_vid
= mlx4_en_vlan_rx_kill_vid
,
2765 .ndo_set_vf_mac
= mlx4_en_set_vf_mac
,
2766 .ndo_set_vf_vlan
= mlx4_en_set_vf_vlan
,
2767 .ndo_set_vf_rate
= mlx4_en_set_vf_rate
,
2768 .ndo_set_vf_spoofchk
= mlx4_en_set_vf_spoofchk
,
2769 .ndo_set_vf_link_state
= mlx4_en_set_vf_link_state
,
2770 .ndo_get_vf_stats
= mlx4_en_get_vf_stats
,
2771 .ndo_get_vf_config
= mlx4_en_get_vf_config
,
2772 #ifdef CONFIG_NET_POLL_CONTROLLER
2773 .ndo_poll_controller
= mlx4_en_netpoll
,
2775 .ndo_set_features
= mlx4_en_set_features
,
2776 .ndo_fix_features
= mlx4_en_fix_features
,
2777 .ndo_setup_tc
= __mlx4_en_setup_tc
,
2778 #ifdef CONFIG_RFS_ACCEL
2779 .ndo_rx_flow_steer
= mlx4_en_filter_rfs
,
2781 .ndo_get_phys_port_id
= mlx4_en_get_phys_port_id
,
2782 .ndo_udp_tunnel_add
= mlx4_en_add_vxlan_port
,
2783 .ndo_udp_tunnel_del
= mlx4_en_del_vxlan_port
,
2784 .ndo_features_check
= mlx4_en_features_check
,
2785 .ndo_set_tx_maxrate
= mlx4_en_set_tx_maxrate
,
2786 .ndo_xdp
= mlx4_xdp
,
2789 struct mlx4_en_bond
{
2790 struct work_struct work
;
2791 struct mlx4_en_priv
*priv
;
2793 struct mlx4_port_map port_map
;
2796 static void mlx4_en_bond_work(struct work_struct
*work
)
2798 struct mlx4_en_bond
*bond
= container_of(work
,
2799 struct mlx4_en_bond
,
2802 struct mlx4_dev
*dev
= bond
->priv
->mdev
->dev
;
2804 if (bond
->is_bonded
) {
2805 if (!mlx4_is_bonded(dev
)) {
2806 err
= mlx4_bond(dev
);
2808 en_err(bond
->priv
, "Fail to bond device\n");
2811 err
= mlx4_port_map_set(dev
, &bond
->port_map
);
2813 en_err(bond
->priv
, "Fail to set port map [%d][%d]: %d\n",
2814 bond
->port_map
.port1
,
2815 bond
->port_map
.port2
,
2818 } else if (mlx4_is_bonded(dev
)) {
2819 err
= mlx4_unbond(dev
);
2821 en_err(bond
->priv
, "Fail to unbond device\n");
2823 dev_put(bond
->priv
->dev
);
2827 static int mlx4_en_queue_bond_work(struct mlx4_en_priv
*priv
, int is_bonded
,
2828 u8 v2p_p1
, u8 v2p_p2
)
2830 struct mlx4_en_bond
*bond
= NULL
;
2832 bond
= kzalloc(sizeof(*bond
), GFP_ATOMIC
);
2836 INIT_WORK(&bond
->work
, mlx4_en_bond_work
);
2838 bond
->is_bonded
= is_bonded
;
2839 bond
->port_map
.port1
= v2p_p1
;
2840 bond
->port_map
.port2
= v2p_p2
;
2841 dev_hold(priv
->dev
);
2842 queue_work(priv
->mdev
->workqueue
, &bond
->work
);
2846 int mlx4_en_netdev_event(struct notifier_block
*this,
2847 unsigned long event
, void *ptr
)
2849 struct net_device
*ndev
= netdev_notifier_info_to_dev(ptr
);
2851 struct mlx4_en_dev
*mdev
;
2852 struct mlx4_dev
*dev
;
2853 int i
, num_eth_ports
= 0;
2854 bool do_bond
= true;
2855 struct mlx4_en_priv
*priv
;
2859 if (!net_eq(dev_net(ndev
), &init_net
))
2862 mdev
= container_of(this, struct mlx4_en_dev
, nb
);
2865 /* Go into this mode only when two network devices set on two ports
2866 * of the same mlx4 device are slaves of the same bonding master
2868 mlx4_foreach_port(i
, dev
, MLX4_PORT_TYPE_ETH
) {
2870 if (!port
&& (mdev
->pndev
[i
] == ndev
))
2872 mdev
->upper
[i
] = mdev
->pndev
[i
] ?
2873 netdev_master_upper_dev_get(mdev
->pndev
[i
]) : NULL
;
2874 /* condition not met: network device is a slave */
2875 if (!mdev
->upper
[i
])
2877 if (num_eth_ports
< 2)
2879 /* condition not met: same master */
2880 if (mdev
->upper
[i
] != mdev
->upper
[i
-1])
2883 /* condition not met: 2 salves */
2884 do_bond
= (num_eth_ports
== 2) ? do_bond
: false;
2886 /* handle only events that come with enough info */
2887 if ((do_bond
&& (event
!= NETDEV_BONDING_INFO
)) || !port
)
2890 priv
= netdev_priv(ndev
);
2892 struct netdev_notifier_bonding_info
*notifier_info
= ptr
;
2893 struct netdev_bonding_info
*bonding_info
=
2894 ¬ifier_info
->bonding_info
;
2896 /* required mode 1, 2 or 4 */
2897 if ((bonding_info
->master
.bond_mode
!= BOND_MODE_ACTIVEBACKUP
) &&
2898 (bonding_info
->master
.bond_mode
!= BOND_MODE_XOR
) &&
2899 (bonding_info
->master
.bond_mode
!= BOND_MODE_8023AD
))
2902 /* require exactly 2 slaves */
2903 if (bonding_info
->master
.num_slaves
!= 2)
2908 if (bonding_info
->master
.bond_mode
==
2909 BOND_MODE_ACTIVEBACKUP
) {
2910 /* in active-backup mode virtual ports are
2911 * mapped to the physical port of the active
2913 if (bonding_info
->slave
.state
==
2914 BOND_STATE_BACKUP
) {
2922 } else { /* BOND_STATE_ACTIVE */
2931 } else { /* Active-Active */
2932 /* in active-active mode a virtual port is
2933 * mapped to the native physical port if and only
2934 * if the physical port is up */
2935 __s8 link
= bonding_info
->slave
.link
;
2941 if ((link
== BOND_LINK_UP
) ||
2942 (link
== BOND_LINK_FAIL
)) {
2947 } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */
2957 mlx4_en_queue_bond_work(priv
, do_bond
,
2958 v2p_port1
, v2p_port2
);
2963 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev
*dev
,
2964 struct mlx4_en_stats_bitmap
*stats_bitmap
,
2965 u8 rx_ppp
, u8 rx_pause
,
2966 u8 tx_ppp
, u8 tx_pause
)
2968 int last_i
= NUM_MAIN_STATS
+ NUM_PORT_STATS
+ NUM_PF_STATS
;
2970 if (!mlx4_is_slave(dev
) &&
2971 (dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN
)) {
2972 mutex_lock(&stats_bitmap
->mutex
);
2973 bitmap_clear(stats_bitmap
->bitmap
, last_i
, NUM_FLOW_STATS
);
2976 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2977 NUM_FLOW_PRIORITY_STATS_RX
);
2978 last_i
+= NUM_FLOW_PRIORITY_STATS_RX
;
2980 if (rx_pause
&& !(rx_ppp
))
2981 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2983 last_i
+= NUM_FLOW_STATS_RX
;
2986 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2987 NUM_FLOW_PRIORITY_STATS_TX
);
2988 last_i
+= NUM_FLOW_PRIORITY_STATS_TX
;
2990 if (tx_pause
&& !(tx_ppp
))
2991 bitmap_set(stats_bitmap
->bitmap
, last_i
,
2993 last_i
+= NUM_FLOW_STATS_TX
;
2995 mutex_unlock(&stats_bitmap
->mutex
);
2999 void mlx4_en_set_stats_bitmap(struct mlx4_dev
*dev
,
3000 struct mlx4_en_stats_bitmap
*stats_bitmap
,
3001 u8 rx_ppp
, u8 rx_pause
,
3002 u8 tx_ppp
, u8 tx_pause
)
3006 mutex_init(&stats_bitmap
->mutex
);
3007 bitmap_zero(stats_bitmap
->bitmap
, NUM_ALL_STATS
);
3009 if (mlx4_is_slave(dev
)) {
3010 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3011 MLX4_FIND_NETDEV_STAT(rx_packets
), 1);
3012 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3013 MLX4_FIND_NETDEV_STAT(tx_packets
), 1);
3014 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3015 MLX4_FIND_NETDEV_STAT(rx_bytes
), 1);
3016 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3017 MLX4_FIND_NETDEV_STAT(tx_bytes
), 1);
3018 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3019 MLX4_FIND_NETDEV_STAT(rx_dropped
), 1);
3020 bitmap_set(stats_bitmap
->bitmap
, last_i
+
3021 MLX4_FIND_NETDEV_STAT(tx_dropped
), 1);
3023 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_MAIN_STATS
);
3025 last_i
+= NUM_MAIN_STATS
;
3027 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_PORT_STATS
);
3028 last_i
+= NUM_PORT_STATS
;
3030 if (mlx4_is_master(dev
))
3031 bitmap_set(stats_bitmap
->bitmap
, last_i
,
3033 last_i
+= NUM_PF_STATS
;
3035 mlx4_en_update_pfc_stats_bitmap(dev
, stats_bitmap
,
3038 last_i
+= NUM_FLOW_STATS
;
3040 if (!mlx4_is_slave(dev
))
3041 bitmap_set(stats_bitmap
->bitmap
, last_i
, NUM_PKT_STATS
);
3044 int mlx4_en_init_netdev(struct mlx4_en_dev
*mdev
, int port
,
3045 struct mlx4_en_port_profile
*prof
)
3047 struct net_device
*dev
;
3048 struct mlx4_en_priv
*priv
;
3051 #ifdef CONFIG_MLX4_EN_DCB
3052 struct tc_configuration
*tc
;
3055 dev
= alloc_etherdev_mqs(sizeof(struct mlx4_en_priv
),
3056 MAX_TX_RINGS
, MAX_RX_RINGS
);
3060 netif_set_real_num_tx_queues(dev
, prof
->tx_ring_num
);
3061 netif_set_real_num_rx_queues(dev
, prof
->rx_ring_num
);
3063 SET_NETDEV_DEV(dev
, &mdev
->dev
->persist
->pdev
->dev
);
3064 dev
->dev_port
= port
- 1;
3067 * Initialize driver private data
3070 priv
= netdev_priv(dev
);
3071 memset(priv
, 0, sizeof(struct mlx4_en_priv
));
3072 priv
->counter_index
= MLX4_SINK_COUNTER_INDEX(mdev
->dev
);
3073 spin_lock_init(&priv
->stats_lock
);
3074 INIT_WORK(&priv
->rx_mode_task
, mlx4_en_do_set_rx_mode
);
3075 INIT_WORK(&priv
->watchdog_task
, mlx4_en_restart
);
3076 INIT_WORK(&priv
->linkstate_task
, mlx4_en_linkstate
);
3077 INIT_DELAYED_WORK(&priv
->stats_task
, mlx4_en_do_get_stats
);
3078 INIT_DELAYED_WORK(&priv
->service_task
, mlx4_en_service_task
);
3079 INIT_WORK(&priv
->vxlan_add_task
, mlx4_en_add_vxlan_offloads
);
3080 INIT_WORK(&priv
->vxlan_del_task
, mlx4_en_del_vxlan_offloads
);
3081 #ifdef CONFIG_RFS_ACCEL
3082 INIT_LIST_HEAD(&priv
->filters
);
3083 spin_lock_init(&priv
->filters_lock
);
3088 priv
->ddev
= &mdev
->pdev
->dev
;
3091 priv
->port_up
= false;
3092 priv
->flags
= prof
->flags
;
3093 priv
->pflags
= MLX4_EN_PRIV_FLAGS_BLUEFLAME
;
3094 priv
->ctrl_flags
= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE
|
3095 MLX4_WQE_CTRL_SOLICITED
);
3096 priv
->num_tx_rings_p_up
= mdev
->profile
.num_tx_rings_p_up
;
3097 priv
->tx_ring_num
= prof
->tx_ring_num
;
3098 priv
->tx_work_limit
= MLX4_EN_DEFAULT_TX_WORK
;
3099 netdev_rss_key_fill(priv
->rss_key
, sizeof(priv
->rss_key
));
3101 priv
->tx_ring
= kzalloc(sizeof(struct mlx4_en_tx_ring
*) * MAX_TX_RINGS
,
3103 if (!priv
->tx_ring
) {
3107 priv
->tx_cq
= kzalloc(sizeof(struct mlx4_en_cq
*) * MAX_TX_RINGS
,
3113 priv
->rx_ring_num
= prof
->rx_ring_num
;
3114 priv
->cqe_factor
= (mdev
->dev
->caps
.cqe_size
== 64) ? 1 : 0;
3115 priv
->cqe_size
= mdev
->dev
->caps
.cqe_size
;
3116 priv
->mac_index
= -1;
3117 priv
->msg_enable
= MLX4_EN_MSG_LEVEL
;
3118 #ifdef CONFIG_MLX4_EN_DCB
3119 if (!mlx4_is_slave(priv
->mdev
->dev
)) {
3120 priv
->cee_params
.dcbx_cap
= DCB_CAP_DCBX_VER_CEE
|
3122 DCB_CAP_DCBX_VER_IEEE
;
3123 priv
->flags
|= MLX4_EN_DCB_ENABLED
;
3124 priv
->cee_params
.dcb_cfg
.pfc_state
= false;
3126 for (i
= 0; i
< MLX4_EN_NUM_UP
; i
++) {
3127 tc
= &priv
->cee_params
.dcb_cfg
.tc_config
[i
];
3128 tc
->dcb_pfc
= pfc_disabled
;
3131 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_ETS_CFG
) {
3132 dev
->dcbnl_ops
= &mlx4_en_dcbnl_ops
;
3134 en_info(priv
, "enabling only PFC DCB ops\n");
3135 dev
->dcbnl_ops
= &mlx4_en_dcbnl_pfc_ops
;
3140 for (i
= 0; i
< MLX4_EN_MAC_HASH_SIZE
; ++i
)
3141 INIT_HLIST_HEAD(&priv
->mac_hash
[i
]);
3143 /* Query for default mac and max mtu */
3144 priv
->max_mtu
= mdev
->dev
->caps
.eth_mtu_cap
[priv
->port
];
3146 if (mdev
->dev
->caps
.rx_checksum_flags_port
[priv
->port
] &
3147 MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP
)
3148 priv
->flags
|= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP
;
3150 /* Set default MAC */
3151 dev
->addr_len
= ETH_ALEN
;
3152 mlx4_en_u64_to_mac(dev
->dev_addr
, mdev
->dev
->caps
.def_mac
[priv
->port
]);
3153 if (!is_valid_ether_addr(dev
->dev_addr
)) {
3154 en_err(priv
, "Port: %d, invalid mac burned: %pM, quiting\n",
3155 priv
->port
, dev
->dev_addr
);
3158 } else if (mlx4_is_slave(priv
->mdev
->dev
) &&
3159 (priv
->mdev
->dev
->port_random_macs
& 1 << priv
->port
)) {
3160 /* Random MAC was assigned in mlx4_slave_cap
3161 * in mlx4_core module
3163 dev
->addr_assign_type
|= NET_ADDR_RANDOM
;
3164 en_warn(priv
, "Assigned random MAC address %pM\n", dev
->dev_addr
);
3167 memcpy(priv
->current_mac
, dev
->dev_addr
, sizeof(priv
->current_mac
));
3169 priv
->stride
= roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc
) +
3170 DS_SIZE
* MLX4_EN_MAX_RX_FRAGS
);
3171 err
= mlx4_en_alloc_resources(priv
);
3175 /* Initialize time stamping config */
3176 priv
->hwtstamp_config
.flags
= 0;
3177 priv
->hwtstamp_config
.tx_type
= HWTSTAMP_TX_OFF
;
3178 priv
->hwtstamp_config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
3180 /* Allocate page for receive rings */
3181 err
= mlx4_alloc_hwq_res(mdev
->dev
, &priv
->res
,
3184 en_err(priv
, "Failed to allocate page for rx qps\n");
3187 priv
->allocated
= 1;
3190 * Initialize netdev entry points
3192 if (mlx4_is_master(priv
->mdev
->dev
))
3193 dev
->netdev_ops
= &mlx4_netdev_ops_master
;
3195 dev
->netdev_ops
= &mlx4_netdev_ops
;
3196 dev
->watchdog_timeo
= MLX4_EN_WATCHDOG_TIMEOUT
;
3197 netif_set_real_num_tx_queues(dev
, priv
->tx_ring_num
);
3198 netif_set_real_num_rx_queues(dev
, priv
->rx_ring_num
);
3200 dev
->ethtool_ops
= &mlx4_en_ethtool_ops
;
3203 * Set driver features
3205 dev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
3206 if (mdev
->LSO_support
)
3207 dev
->hw_features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
3209 dev
->vlan_features
= dev
->hw_features
;
3211 dev
->hw_features
|= NETIF_F_RXCSUM
| NETIF_F_RXHASH
;
3212 dev
->features
= dev
->hw_features
| NETIF_F_HIGHDMA
|
3213 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
|
3214 NETIF_F_HW_VLAN_CTAG_FILTER
;
3215 dev
->hw_features
|= NETIF_F_LOOPBACK
|
3216 NETIF_F_HW_VLAN_CTAG_TX
| NETIF_F_HW_VLAN_CTAG_RX
;
3218 if (!(mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
)) {
3219 dev
->features
|= NETIF_F_HW_VLAN_STAG_RX
|
3220 NETIF_F_HW_VLAN_STAG_FILTER
;
3221 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_RX
;
3224 if (mlx4_is_slave(mdev
->dev
)) {
3227 err
= get_phv_bit(mdev
->dev
, port
, &phv
);
3229 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_TX
;
3230 priv
->pflags
|= MLX4_EN_PRIV_FLAGS_PHV
;
3233 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_PHV_EN
&&
3234 !(mdev
->dev
->caps
.flags2
&
3235 MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN
))
3236 dev
->hw_features
|= NETIF_F_HW_VLAN_STAG_TX
;
3239 if (mdev
->dev
->caps
.flags
& MLX4_DEV_CAP_FLAG_FCS_KEEP
)
3240 dev
->hw_features
|= NETIF_F_RXFCS
;
3242 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_IGNORE_FCS
)
3243 dev
->hw_features
|= NETIF_F_RXALL
;
3245 if (mdev
->dev
->caps
.steering_mode
==
3246 MLX4_STEERING_MODE_DEVICE_MANAGED
&&
3247 mdev
->dev
->caps
.dmfs_high_steer_mode
!= MLX4_STEERING_DMFS_A0_STATIC
)
3248 dev
->hw_features
|= NETIF_F_NTUPLE
;
3250 if (mdev
->dev
->caps
.steering_mode
!= MLX4_STEERING_MODE_A0
)
3251 dev
->priv_flags
|= IFF_UNICAST_FLT
;
3253 /* Setting a default hash function value */
3254 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_RSS_TOP
) {
3255 priv
->rss_hash_fn
= ETH_RSS_HASH_TOP
;
3256 } else if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_RSS_XOR
) {
3257 priv
->rss_hash_fn
= ETH_RSS_HASH_XOR
;
3260 "No RSS hash capabilities exposed, using Toeplitz\n");
3261 priv
->rss_hash_fn
= ETH_RSS_HASH_TOP
;
3264 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
3265 dev
->hw_features
|= NETIF_F_GSO_UDP_TUNNEL
|
3266 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
3267 NETIF_F_GSO_PARTIAL
;
3268 dev
->features
|= NETIF_F_GSO_UDP_TUNNEL
|
3269 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
3270 NETIF_F_GSO_PARTIAL
;
3271 dev
->gso_partial_features
= NETIF_F_GSO_UDP_TUNNEL_CSUM
;
3274 mdev
->pndev
[port
] = dev
;
3275 mdev
->upper
[port
] = NULL
;
3277 netif_carrier_off(dev
);
3278 mlx4_en_set_default_moderation(priv
);
3280 en_warn(priv
, "Using %d TX rings\n", prof
->tx_ring_num
);
3281 en_warn(priv
, "Using %d RX rings\n", prof
->rx_ring_num
);
3283 mlx4_en_update_loopback_state(priv
->dev
, priv
->dev
->features
);
3285 /* Configure port */
3286 mlx4_en_calc_rx_buf(dev
);
3287 err
= mlx4_SET_PORT_general(mdev
->dev
, priv
->port
,
3288 priv
->rx_skb_size
+ ETH_FCS_LEN
,
3289 prof
->tx_pause
, prof
->tx_ppp
,
3290 prof
->rx_pause
, prof
->rx_ppp
);
3292 en_err(priv
, "Failed setting port general configurations for port %d, with error %d\n",
3297 if (mdev
->dev
->caps
.tunnel_offload_mode
== MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
) {
3298 err
= mlx4_SET_PORT_VXLAN(mdev
->dev
, priv
->port
, VXLAN_STEER_BY_OUTER_MAC
, 1);
3300 en_err(priv
, "Failed setting port L2 tunnel configuration, err %d\n",
3307 en_warn(priv
, "Initializing port\n");
3308 err
= mlx4_INIT_PORT(mdev
->dev
, priv
->port
);
3310 en_err(priv
, "Failed Initializing port\n");
3313 queue_delayed_work(mdev
->workqueue
, &priv
->stats_task
, STATS_DELAY
);
3315 /* Initialize time stamp mechanism */
3316 if (mdev
->dev
->caps
.flags2
& MLX4_DEV_CAP_FLAG2_TS
)
3317 mlx4_en_init_timestamp(mdev
);
3319 queue_delayed_work(mdev
->workqueue
, &priv
->service_task
,
3320 SERVICE_TASK_DELAY
);
3322 mlx4_en_set_stats_bitmap(mdev
->dev
, &priv
->stats_bitmap
,
3323 mdev
->profile
.prof
[priv
->port
].rx_ppp
,
3324 mdev
->profile
.prof
[priv
->port
].rx_pause
,
3325 mdev
->profile
.prof
[priv
->port
].tx_ppp
,
3326 mdev
->profile
.prof
[priv
->port
].tx_pause
);
3328 err
= register_netdev(dev
);
3330 en_err(priv
, "Netdev registration failed for port %d\n", port
);
3334 priv
->registered
= 1;
3335 devlink_port_type_eth_set(mlx4_get_devlink_port(mdev
->dev
, priv
->port
),
3341 mlx4_en_destroy_netdev(dev
);
3345 int mlx4_en_reset_config(struct net_device
*dev
,
3346 struct hwtstamp_config ts_config
,
3347 netdev_features_t features
)
3349 struct mlx4_en_priv
*priv
= netdev_priv(dev
);
3350 struct mlx4_en_dev
*mdev
= priv
->mdev
;
3351 struct mlx4_en_port_profile new_prof
;
3352 struct mlx4_en_priv
*tmp
;
3356 if (priv
->hwtstamp_config
.tx_type
== ts_config
.tx_type
&&
3357 priv
->hwtstamp_config
.rx_filter
== ts_config
.rx_filter
&&
3358 !DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
) &&
3359 !DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_RXFCS
))
3360 return 0; /* Nothing to change */
3362 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
) &&
3363 (features
& NETIF_F_HW_VLAN_CTAG_RX
) &&
3364 (priv
->hwtstamp_config
.rx_filter
!= HWTSTAMP_FILTER_NONE
)) {
3365 en_warn(priv
, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n");
3369 tmp
= kzalloc(sizeof(*tmp
), GFP_KERNEL
);
3373 mutex_lock(&mdev
->state_lock
);
3375 memcpy(&new_prof
, priv
->prof
, sizeof(struct mlx4_en_port_profile
));
3376 memcpy(&new_prof
.hwtstamp_config
, &ts_config
, sizeof(ts_config
));
3378 err
= mlx4_en_try_alloc_resources(priv
, tmp
, &new_prof
);
3382 if (priv
->port_up
) {
3384 mlx4_en_stop_port(dev
, 1);
3387 en_warn(priv
, "Changing device configuration rx filter(%x) rx vlan(%x)\n",
3388 ts_config
.rx_filter
,
3389 !!(features
& NETIF_F_HW_VLAN_CTAG_RX
));
3391 mlx4_en_safe_replace_resources(priv
, tmp
);
3393 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_HW_VLAN_CTAG_RX
)) {
3394 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
3395 dev
->features
|= NETIF_F_HW_VLAN_CTAG_RX
;
3397 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3398 } else if (ts_config
.rx_filter
== HWTSTAMP_FILTER_NONE
) {
3399 /* RX time-stamping is OFF, update the RX vlan offload
3400 * to the latest wanted state
3402 if (dev
->wanted_features
& NETIF_F_HW_VLAN_CTAG_RX
)
3403 dev
->features
|= NETIF_F_HW_VLAN_CTAG_RX
;
3405 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3408 if (DEV_FEATURE_CHANGED(dev
, features
, NETIF_F_RXFCS
)) {
3409 if (features
& NETIF_F_RXFCS
)
3410 dev
->features
|= NETIF_F_RXFCS
;
3412 dev
->features
&= ~NETIF_F_RXFCS
;
3415 /* RX vlan offload and RX time-stamping can't co-exist !
3416 * Regardless of the caller's choice,
3417 * Turn Off RX vlan offload in case of time-stamping is ON
3419 if (ts_config
.rx_filter
!= HWTSTAMP_FILTER_NONE
) {
3420 if (dev
->features
& NETIF_F_HW_VLAN_CTAG_RX
)
3421 en_warn(priv
, "Turning off RX vlan offload since RX time-stamping is ON\n");
3422 dev
->features
&= ~NETIF_F_HW_VLAN_CTAG_RX
;
3426 err
= mlx4_en_start_port(dev
);
3428 en_err(priv
, "Failed starting port\n");
3432 mutex_unlock(&mdev
->state_lock
);
3435 netdev_features_change(dev
);