diff options
Diffstat (limited to 'net/8021q')
| -rw-r--r-- | net/8021q/vlan.c | 96 | ||||
| -rw-r--r-- | net/8021q/vlan_core.c | 99 |
2 files changed, 99 insertions, 96 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 1b7a375c6616..aef1a977279c 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -648,93 +648,6 @@ out: return err; } -static struct sk_buff *vlan_gro_receive(struct list_head *head, - struct sk_buff *skb) -{ - const struct packet_offload *ptype; - unsigned int hlen, off_vlan; - struct sk_buff *pp = NULL; - struct vlan_hdr *vhdr; - struct sk_buff *p; - __be16 type; - int flush = 1; - - off_vlan = skb_gro_offset(skb); - hlen = off_vlan + sizeof(*vhdr); - vhdr = skb_gro_header_fast(skb, off_vlan); - if (skb_gro_header_hard(skb, hlen)) { - vhdr = skb_gro_header_slow(skb, hlen, off_vlan); - if (unlikely(!vhdr)) - goto out; - } - - type = vhdr->h_vlan_encapsulated_proto; - - rcu_read_lock(); - ptype = gro_find_receive_by_type(type); - if (!ptype) - goto out_unlock; - - flush = 0; - - list_for_each_entry(p, head, list) { - struct vlan_hdr *vhdr2; - - if (!NAPI_GRO_CB(p)->same_flow) - continue; - - vhdr2 = (struct vlan_hdr *)(p->data + off_vlan); - if (compare_vlan_header(vhdr, vhdr2)) - NAPI_GRO_CB(p)->same_flow = 0; - } - - skb_gro_pull(skb, sizeof(*vhdr)); - skb_gro_postpull_rcsum(skb, vhdr, sizeof(*vhdr)); - pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb); - -out_unlock: - rcu_read_unlock(); -out: - skb_gro_flush_final(skb, pp, flush); - - return pp; -} - -static int vlan_gro_complete(struct sk_buff *skb, int nhoff) -{ - struct vlan_hdr *vhdr = (struct vlan_hdr *)(skb->data + nhoff); - __be16 type = vhdr->h_vlan_encapsulated_proto; - struct packet_offload *ptype; - int err = -ENOENT; - - rcu_read_lock(); - ptype = gro_find_complete_by_type(type); - if (ptype) - err = ptype->callbacks.gro_complete(skb, nhoff + sizeof(*vhdr)); - - rcu_read_unlock(); - return err; -} - -static struct packet_offload vlan_packet_offloads[] __read_mostly = { - { - .type = cpu_to_be16(ETH_P_8021Q), - .priority = 10, - .callbacks = { - .gro_receive = vlan_gro_receive, - .gro_complete = vlan_gro_complete, - }, - }, - { - .type = cpu_to_be16(ETH_P_8021AD), - .priority = 10, - .callbacks = { - .gro_receive = vlan_gro_receive, - .gro_complete = vlan_gro_complete, - }, - }, -}; - static int __net_init vlan_init_net(struct net *net) { struct vlan_net *vn = net_generic(net, vlan_net_id); @@ -762,7 +675,6 @@ static struct pernet_operations vlan_net_ops = { static int __init vlan_proto_init(void) { int err; - unsigned int i; pr_info("%s v%s\n", vlan_fullname, vlan_version); @@ -786,9 +698,6 @@ static int __init vlan_proto_init(void) if (err < 0) goto err5; - for (i = 0; i < ARRAY_SIZE(vlan_packet_offloads); i++) - dev_add_offload(&vlan_packet_offloads[i]); - vlan_ioctl_set(vlan_ioctl_handler); return 0; @@ -806,13 +715,8 @@ err0: static void __exit vlan_cleanup_module(void) { - unsigned int i; - vlan_ioctl_set(NULL); - for (i = 0; i < ARRAY_SIZE(vlan_packet_offloads); i++) - dev_remove_offload(&vlan_packet_offloads[i]); - vlan_netlink_fini(); unregister_netdevice_notifier(&vlan_notifier_block); diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 57425049faf2..a313165e7a67 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -453,3 +453,102 @@ bool vlan_uses_dev(const struct net_device *dev) return vlan_info->grp.nr_vlan_devs ? true : false; } EXPORT_SYMBOL(vlan_uses_dev); + +static struct sk_buff *vlan_gro_receive(struct list_head *head, + struct sk_buff *skb) +{ + const struct packet_offload *ptype; + unsigned int hlen, off_vlan; + struct sk_buff *pp = NULL; + struct vlan_hdr *vhdr; + struct sk_buff *p; + __be16 type; + int flush = 1; + + off_vlan = skb_gro_offset(skb); + hlen = off_vlan + sizeof(*vhdr); + vhdr = skb_gro_header_fast(skb, off_vlan); + if (skb_gro_header_hard(skb, hlen)) { + vhdr = skb_gro_header_slow(skb, hlen, off_vlan); + if (unlikely(!vhdr)) + goto out; + } + + type = vhdr->h_vlan_encapsulated_proto; + + rcu_read_lock(); + ptype = gro_find_receive_by_type(type); + if (!ptype) + goto out_unlock; + + flush = 0; + + list_for_each_entry(p, head, list) { + struct vlan_hdr *vhdr2; + + if (!NAPI_GRO_CB(p)->same_flow) + continue; + + vhdr2 = (struct vlan_hdr *)(p->data + off_vlan); + if (compare_vlan_header(vhdr, vhdr2)) + NAPI_GRO_CB(p)->same_flow = 0; + } + + skb_gro_pull(skb, sizeof(*vhdr)); + skb_gro_postpull_rcsum(skb, vhdr, sizeof(*vhdr)); + pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb); + +out_unlock: + rcu_read_unlock(); +out: + skb_gro_flush_final(skb, pp, flush); + + return pp; +} + +static int vlan_gro_complete(struct sk_buff *skb, int nhoff) +{ + struct vlan_hdr *vhdr = (struct vlan_hdr *)(skb->data + nhoff); + __be16 type = vhdr->h_vlan_encapsulated_proto; + struct packet_offload *ptype; + int err = -ENOENT; + + rcu_read_lock(); + ptype = gro_find_complete_by_type(type); + if (ptype) + err = ptype->callbacks.gro_complete(skb, nhoff + sizeof(*vhdr)); + + rcu_read_unlock(); + return err; +} + +static struct packet_offload vlan_packet_offloads[] __read_mostly = { + { + .type = cpu_to_be16(ETH_P_8021Q), + .priority = 10, + .callbacks = { + .gro_receive = vlan_gro_receive, + .gro_complete = vlan_gro_complete, + }, + }, + { + .type = cpu_to_be16(ETH_P_8021AD), + .priority = 10, + .callbacks = { + .gro_receive = vlan_gro_receive, + .gro_complete = vlan_gro_complete, + }, + }, +}; + +static int __init vlan_offload_init(void) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(vlan_packet_offloads); i++) + dev_add_offload(&vlan_packet_offloads[i]); + + return 0; +} + +fs_initcall(vlan_offload_init); |