From b5c5f8d06292e2dd9961c4b88fde9ae0ea458d97 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Tue, 14 Jul 2020 12:18:21 -0700 Subject: xgbe: switch to more generic VxLAN detection Instead of looping though the list of ports just check if the geometry of the packet is correct for VxLAN. HW most likely doesn't care about the exact port, anyway, since only first port is actually offloaded, and this way we won't have to maintain the port list at all. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 27 ++++++++------------------- 1 file changed, 8 insertions(+), 19 deletions(-) (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-drv.c') diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index a87264f95f1a..dfeddf5fbf78 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -1773,13 +1773,8 @@ static int xgbe_prep_tso(struct sk_buff *skb, struct xgbe_packet_data *packet) return 0; } -static bool xgbe_is_vxlan(struct xgbe_prv_data *pdata, struct sk_buff *skb) +static bool xgbe_is_vxlan(struct sk_buff *skb) { - struct xgbe_vxlan_data *vdata; - - if (pdata->vxlan_force_disable) - return false; - if (!skb->encapsulation) return false; @@ -1801,19 +1796,13 @@ static bool xgbe_is_vxlan(struct xgbe_prv_data *pdata, struct sk_buff *skb) return false; } - /* See if we have the UDP port in our list */ - list_for_each_entry(vdata, &pdata->vxlan_ports, list) { - if ((skb->protocol == htons(ETH_P_IP)) && - (vdata->sa_family == AF_INET) && - (vdata->port == udp_hdr(skb)->dest)) - return true; - else if ((skb->protocol == htons(ETH_P_IPV6)) && - (vdata->sa_family == AF_INET6) && - (vdata->port == udp_hdr(skb)->dest)) - return true; - } + if (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + (skb_inner_mac_header(skb) - skb_transport_header(skb) != + sizeof(struct udphdr) + sizeof(struct vxlanhdr))) + return false; - return false; + return true; } static int xgbe_is_tso(struct sk_buff *skb) @@ -1864,7 +1853,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata, XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, CSUM_ENABLE, 1); - if (xgbe_is_vxlan(pdata, skb)) + if (xgbe_is_vxlan(skb)) XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, VXLAN, 1); -- cgit v1.2.3-59-g8ed1b