diff options
| author |   Luo bin <luobin9@huawei.com> | 2020-09-14 21:48:23 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-09-14 13:59:15 -0700 |
| commit | 33acd755f406358c10b39c444492c8cc8a56411f (patch) | |
| tree | 7b7958d9123676ac70d4305568fb8409bd11d93a /drivers/net/ethernet/huawei | |
| parent | net: qlcnic: remove unused variable 'val' in qlcnic_83xx_cam_unlock() (diff) | |
| download | linux-dev-33acd755f406358c10b39c444492c8cc8a56411f.tar.xz linux-dev-33acd755f406358c10b39c444492c8cc8a56411f.zip | |
hinic: add vxlan segmentation and cs offload support
Add NETIF_F_GSO_UDP_TUNNEL and NETIF_F_GSO_UDP_TUNNEL_CSUM features
to support vxlan segmentation and checksum offload. Ipip and ipv6
tunnel packets are regarded as non-tunnel pkt for hw and as for other
type of tunnel pkts, checksum offload is disabled.
Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/huawei')
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_main.c | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_tx.c | 51 |
2 files changed, 46 insertions, 12 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index 797c55a1d9c6..2c63e3a690cd 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -929,11 +929,16 @@ static void netdev_features_init(struct net_device *netdev) netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_RXCSUM | NETIF_F_LRO | - NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; + NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; netdev->vlan_features = netdev->hw_features; netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; + + netdev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SCTP_CRC | + NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | + NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_UDP_TUNNEL; } static void hinic_refresh_nic_cfg(struct hinic_dev *nic_dev) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_tx.c b/drivers/net/ethernet/huawei/hinic/hinic_tx.c index a97498ee6914..502f00e1e2d0 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_tx.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_tx.c @@ -357,6 +357,7 @@ static int offload_csum(struct hinic_sq_task *task, u32 *queue_info, enum hinic_l4_offload_type l4_offload; u32 offset, l4_len, network_hdr_len; enum hinic_l3_offload_type l3_type; + u32 tunnel_type = NOT_TUNNEL; union hinic_l3 ip; union hinic_l4 l4; u8 l4_proto; @@ -367,27 +368,55 @@ static int offload_csum(struct hinic_sq_task *task, u32 *queue_info, if (skb->encapsulation) { u32 l4_tunnel_len; + tunnel_type = TUNNEL_UDP_NO_CSUM; ip.hdr = skb_network_header(skb); - if (ip.v4->version == 4) + if (ip.v4->version == 4) { l3_type = IPV4_PKT_NO_CHKSUM_OFFLOAD; - else if (ip.v4->version == 6) + l4_proto = ip.v4->protocol; + } else if (ip.v4->version == 6) { + unsigned char *exthdr; + __be16 frag_off; l3_type = IPV6_PKT; - else + tunnel_type = TUNNEL_UDP_CSUM; + exthdr = ip.hdr + sizeof(*ip.v6); + l4_proto = ip.v6->nexthdr; + l4.hdr = skb_transport_header(skb); + if (l4.hdr != exthdr) + ipv6_skip_exthdr(skb, exthdr - skb->data, + &l4_proto, &frag_off); + } else { l3_type = L3TYPE_UNKNOWN; + l4_proto = IPPROTO_RAW; + } hinic_task_set_outter_l3(task, l3_type, skb_network_header_len(skb)); - l4_tunnel_len = skb_inner_network_offset(skb) - - skb_transport_offset(skb); - - hinic_task_set_tunnel_l4(task, TUNNEL_UDP_NO_CSUM, - l4_tunnel_len); + switch (l4_proto) { + case IPPROTO_UDP: + l4_tunnel_len = skb_inner_network_offset(skb) - + skb_transport_offset(skb); + ip.hdr = skb_inner_network_header(skb); + l4.hdr = skb_inner_transport_header(skb); + network_hdr_len = skb_inner_network_header_len(skb); + break; + case IPPROTO_IPIP: + case IPPROTO_IPV6: + tunnel_type = NOT_TUNNEL; + l4_tunnel_len = 0; + + ip.hdr = skb_inner_network_header(skb); + l4.hdr = skb_transport_header(skb); + network_hdr_len = skb_network_header_len(skb); + break; + default: + /* Unsupported tunnel packet, disable csum offload */ + skb_checksum_help(skb); + return 0; + } - ip.hdr = skb_inner_network_header(skb); - l4.hdr = skb_inner_transport_header(skb); - network_hdr_len = skb_inner_network_header_len(skb); + hinic_task_set_tunnel_l4(task, tunnel_type, l4_tunnel_len); } else { ip.hdr = skb_network_header(skb); l4.hdr = skb_transport_header(skb); |