From 86a9bad3ab6b6f858fd4443b48738cabbb6d094c Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 19 Apr 2013 02:04:30 +0000 Subject: net: vlan: add protocol argument to packet tagging functions Add a protocol argument to the VLAN packet tagging functions. In case of HW tagging, we need that protocol available in the ndo_start_xmit functions, so it is stored in a new field in the skb. The new field fits into a hole (on 64 bit) and doesn't increase the sks's size. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/8021q/vlan_core.c | 8 +++++--- net/8021q/vlan_dev.c | 2 +- net/batman-adv/bridge_loop_avoidance.c | 2 +- net/bridge/br_netfilter.c | 2 +- net/bridge/br_vlan.c | 4 ++-- net/core/dev.c | 5 +++-- net/core/netpoll.c | 5 +++-- net/core/skbuff.c | 1 + net/openvswitch/actions.c | 6 +++--- net/openvswitch/datapath.c | 2 +- 10 files changed, 21 insertions(+), 16 deletions(-) (limited to 'net') diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 4e4c360..bdb0b9d 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -8,11 +8,12 @@ bool vlan_do_receive(struct sk_buff **skbp) { struct sk_buff *skb = *skbp; + __be16 vlan_proto = skb->vlan_proto; u16 vlan_id = skb->vlan_tci & VLAN_VID_MASK; struct net_device *vlan_dev; struct vlan_pcpu_stats *rx_stats; - vlan_dev = vlan_find_dev(skb->dev, htons(ETH_P_8021Q), vlan_id); + vlan_dev = vlan_find_dev(skb->dev, vlan_proto, vlan_id); if (!vlan_dev) return false; @@ -38,7 +39,8 @@ bool vlan_do_receive(struct sk_buff **skbp) * original position later */ skb_push(skb, offset); - skb = *skbp = vlan_insert_tag(skb, skb->vlan_tci); + skb = *skbp = vlan_insert_tag(skb, skb->vlan_proto, + skb->vlan_tci); if (!skb) return false; skb_pull(skb, offset + VLAN_HLEN); @@ -127,7 +129,7 @@ struct sk_buff *vlan_untag(struct sk_buff *skb) vhdr = (struct vlan_hdr *) skb->data; vlan_tci = ntohs(vhdr->h_vlan_TCI); - __vlan_hwaccel_put_tag(skb, vlan_tci); + __vlan_hwaccel_put_tag(skb, skb->protocol, vlan_tci); skb_pull_rcsum(skb, VLAN_HLEN); vlan_set_encap_proto(skb, vhdr); diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index d7457b7..8af5085 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -167,7 +167,7 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, u16 vlan_tci; vlan_tci = vlan->vlan_id; vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb); - skb = __vlan_hwaccel_put_tag(skb, vlan_tci); + skb = __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci); } skb->dev = vlan->real_dev; diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 6a4f728..379061c 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -341,7 +341,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac, } if (vid != -1) - skb = vlan_insert_tag(skb, vid); + skb = vlan_insert_tag(skb, htons(ETH_P_8021Q), vid); skb_reset_mac_header(skb); skb->protocol = eth_type_trans(skb, soft_iface); diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index bd61bf5..1ed75bf 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -535,7 +535,7 @@ static struct net_device *brnf_get_logical_dev(struct sk_buff *skb, const struct if (brnf_pass_vlan_indev == 0 || !vlan_tx_tag_present(skb)) return br; - vlan = __vlan_find_dev_deep(br, htons(ETH_P_8021Q), + vlan = __vlan_find_dev_deep(br, skb->vlan_proto, vlan_tx_tag_get(skb) & VLAN_VID_MASK); return vlan ? vlan : br; diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index c3076e2..bd58b45 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -175,7 +175,7 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br, * mac header. */ skb_push(skb, ETH_HLEN); - skb = __vlan_put_tag(skb, skb->vlan_tci); + skb = __vlan_put_tag(skb, skb->vlan_proto, skb->vlan_tci); if (!skb) goto out; /* put skb->data back to where it was */ @@ -217,7 +217,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, /* PVID is set on this port. Any untagged ingress * frame is considered to belong to this vlan. */ - __vlan_hwaccel_put_tag(skb, pvid); + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid); return true; } diff --git a/net/core/dev.c b/net/core/dev.c index 07a8e9d..3a12ee1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2482,8 +2482,9 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, features = netif_skb_features(skb); if (vlan_tx_tag_present(skb) && - !(features & NETIF_F_HW_VLAN_CTAG_TX)) { - skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb)); + !vlan_hw_offload_capable(features, skb->vlan_proto)) { + skb = __vlan_put_tag(skb, skb->vlan_proto, + vlan_tx_tag_get(skb)); if (unlikely(!skb)) goto out; diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 8de961e..209d842 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -383,8 +383,9 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, if (__netif_tx_trylock(txq)) { if (!netif_xmit_stopped(txq)) { if (vlan_tx_tag_present(skb) && - !(netif_skb_features(skb) & NETIF_F_HW_VLAN_CTAG_TX)) { - skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb)); + !vlan_hw_offload_capable(netif_skb_features(skb), + skb->vlan_proto)) { + skb = __vlan_put_tag(skb, skb->vlan_proto, vlan_tx_tag_get(skb)); if (unlikely(!skb)) break; skb->vlan_tci = 0; diff --git a/net/core/skbuff.c b/net/core/skbuff.c index ba64614..a92d9e7 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -707,6 +707,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old) new->tc_verd = old->tc_verd; #endif #endif + new->vlan_proto = old->vlan_proto; new->vlan_tci = old->vlan_tci; skb_copy_secmark(new, old); diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index d4d5363..894b6cb 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -98,7 +98,7 @@ static int pop_vlan(struct sk_buff *skb) if (unlikely(err)) return err; - __vlan_hwaccel_put_tag(skb, ntohs(tci)); + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(tci)); return 0; } @@ -110,7 +110,7 @@ static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vla /* push down current VLAN tag */ current_tag = vlan_tx_tag_get(skb); - if (!__vlan_put_tag(skb, current_tag)) + if (!__vlan_put_tag(skb, skb->vlan_proto, current_tag)) return -ENOMEM; if (skb->ip_summed == CHECKSUM_COMPLETE) @@ -118,7 +118,7 @@ static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vla + (2 * ETH_ALEN), VLAN_HLEN, 0)); } - __vlan_hwaccel_put_tag(skb, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT); + __vlan_hwaccel_put_tag(skb, vlan->vlan_tpid, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT); return 0; } diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index b7d0b7c..7bb5d4f 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -401,7 +401,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex, if (!nskb) return -ENOMEM; - nskb = __vlan_put_tag(nskb, vlan_tx_tag_get(nskb)); + nskb = __vlan_put_tag(nskb, nskb->vlan_proto, vlan_tx_tag_get(nskb)); if (!nskb) return -ENOMEM; -- cgit v1.1