diff options
| author | Brett Creeley <brett.creeley@intel.com> | 2019-12-12 03:12:53 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-01-03 16:08:32 -0800 |
| commit | a54e3b8cffd6d2f12c7fcf14f6d13ab997c0f160 (patch) | |
| tree | 6b5d31e46b0e9eefd06ea9f3cd41b2dbdd74d089 | |
| parent | 3c85efb8f15ffa5bd165881b9fd1f9e5dd1d705f (diff) | |
ice: Support UDP segmentation offload
Based on the work done by Alex Duyck on other Intel drivers, add code to
support UDP segmentation offload (USO) for the ice driver.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_txrx.c | 15 |
2 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 4d5220c9c721..1fc6c350487b 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2330,7 +2330,8 @@ static void ice_set_netdev_features(struct net_device *netdev) NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; - tso_features = NETIF_F_TSO; + tso_features = NETIF_F_TSO | + NETIF_F_GSO_UDP_L4; /* set features that user can change */ netdev->hw_features = dflt_features | csumo_features | diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 2c212f64d99f..b77514bbd7ba 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -1925,6 +1925,7 @@ int ice_tso(struct ice_tx_buf *first, struct ice_tx_offload_params *off) } ip; union { struct tcphdr *tcp; + struct udphdr *udp; unsigned char *hdr; } l4; u64 cd_mss, cd_tso_len; @@ -1958,10 +1959,18 @@ int ice_tso(struct ice_tx_buf *first, struct ice_tx_offload_params *off) /* remove payload length from checksum */ paylen = skb->len - l4_start; - csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); - /* compute length of segmentation header */ - off->header_len = (l4.tcp->doff * 4) + l4_start; + if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) { + csum_replace_by_diff(&l4.udp->check, + (__force __wsum)htonl(paylen)); + /* compute length of UDP segmentation header */ + off->header_len = sizeof(l4.udp) + l4_start; + } else { + csum_replace_by_diff(&l4.tcp->check, + (__force __wsum)htonl(paylen)); + /* compute length of TCP segmentation header */ + off->header_len = (l4.tcp->doff * 4) + l4_start; + } /* update gso_segs and bytecount */ first->gso_segs = skb_shinfo(skb)->gso_segs; |