diff options
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 0e57e862c399..1e0a775ea882 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -555,12 +555,13 @@ static int vxlan_fdb_append(struct vxlan_fdb *f, static struct vxlanhdr *vxlan_gro_remcsum(struct sk_buff *skb, unsigned int off, struct vxlanhdr *vh, size_t hdrlen, - u32 data) + u32 data, struct gro_remcsum *grc, + bool nopartial) { size_t start, offset, plen; if (skb->remcsum_offload) - return vh; + return NULL; if (!NAPI_GRO_CB(skb)->csum_valid) return NULL; @@ -579,7 +580,8 @@ static struct vxlanhdr *vxlan_gro_remcsum(struct sk_buff *skb, return NULL; } - skb_gro_remcsum_process(skb, (void *)vh + hdrlen, start, offset); + skb_gro_remcsum_process(skb, (void *)vh + hdrlen, + start, offset, grc, nopartial); skb->remcsum_offload = 1; @@ -597,6 +599,9 @@ static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, struct vxlan_sock *vs = container_of(uoff, struct vxlan_sock, udp_offloads); u32 flags; + struct gro_remcsum grc; + + skb_gro_remcsum_init(&grc); off_vx = skb_gro_offset(skb); hlen = off_vx + sizeof(*vh); @@ -614,7 +619,9 @@ static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, if ((flags & VXLAN_HF_RCO) && (vs->flags & VXLAN_F_REMCSUM_RX)) { vh = vxlan_gro_remcsum(skb, off_vx, vh, sizeof(struct vxlanhdr), - ntohl(vh->vx_vni)); + ntohl(vh->vx_vni), &grc, + !!(vs->flags & + VXLAN_F_REMCSUM_NOPARTIAL)); if (!vh) goto out; @@ -637,6 +644,7 @@ static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, pp = eth_gro_receive(head, skb); out: + skb_gro_remcsum_cleanup(skb, &grc); NAPI_GRO_CB(skb)->flush |= flush; return pp; @@ -1150,16 +1158,10 @@ static void vxlan_igmp_leave(struct work_struct *work) } static struct vxlanhdr *vxlan_remcsum(struct sk_buff *skb, struct vxlanhdr *vh, - size_t hdrlen, u32 data) + size_t hdrlen, u32 data, bool nopartial) { size_t start, offset, plen; - if (skb->remcsum_offload) { - /* Already processed in GRO path */ - skb->remcsum_offload = 0; - return vh; - } - start = (data & VXLAN_RCO_MASK) << VXLAN_RCO_SHIFT; offset = start + ((data & VXLAN_RCO_UDP) ? offsetof(struct udphdr, check) : @@ -1172,7 +1174,8 @@ static struct vxlanhdr *vxlan_remcsum(struct sk_buff *skb, struct vxlanhdr *vh, vh = (struct vxlanhdr *)(udp_hdr(skb) + 1); - skb_remcsum_process(skb, (void *)vh + hdrlen, start, offset); + skb_remcsum_process(skb, (void *)vh + hdrlen, start, offset, + nopartial); return vh; } @@ -1209,7 +1212,8 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb) goto drop; if ((flags & VXLAN_HF_RCO) && (vs->flags & VXLAN_F_REMCSUM_RX)) { - vxh = vxlan_remcsum(skb, vxh, sizeof(struct vxlanhdr), vni); + vxh = vxlan_remcsum(skb, vxh, sizeof(struct vxlanhdr), vni, + !!(vs->flags & VXLAN_F_REMCSUM_NOPARTIAL)); if (!vxh) goto drop; @@ -2438,6 +2442,7 @@ static const struct nla_policy vxlan_policy[IFLA_VXLAN_MAX + 1] = { [IFLA_VXLAN_REMCSUM_TX] = { .type = NLA_U8 }, [IFLA_VXLAN_REMCSUM_RX] = { .type = NLA_U8 }, [IFLA_VXLAN_GBP] = { .type = NLA_FLAG, }, + [IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NLA_FLAG }, }; static int vxlan_validate(struct nlattr *tb[], struct nlattr *data[]) @@ -2761,6 +2766,9 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev, if (data[IFLA_VXLAN_GBP]) vxlan->flags |= VXLAN_F_GBP; + if (data[IFLA_VXLAN_REMCSUM_NOPARTIAL]) + vxlan->flags |= VXLAN_F_REMCSUM_NOPARTIAL; + if (vxlan_find_vni(src_net, vni, use_ipv6 ? AF_INET6 : AF_INET, vxlan->dst_port, vxlan->flags)) { pr_info("duplicate VNI %u\n", vni); @@ -2910,6 +2918,10 @@ static int vxlan_fill_info(struct sk_buff *skb, const struct net_device *dev) nla_put_flag(skb, IFLA_VXLAN_GBP)) goto nla_put_failure; + if (vxlan->flags & VXLAN_F_REMCSUM_NOPARTIAL && + nla_put_flag(skb, IFLA_VXLAN_REMCSUM_NOPARTIAL)) + goto nla_put_failure; + return 0; nla_put_failure: |