| Message ID | 20191212111307.33566-1-anthony.l.nguyen@intel.com |
|---|---|
| State | Accepted |
| Delegated to: | Jeff Kirsher |
| Headers | show |
| Series | [S35,01/15] ice: Support UDP segmentation offload | expand |
> -----Original Message----- > From: Intel-wired-lan [mailto:intel-wired-lan-bounces@osuosl.org] On > Behalf Of Tony Nguyen > Sent: Thursday, December 12, 2019 3:13 AM > To: intel-wired-lan@lists.osuosl.org > Subject: [Intel-wired-lan] [PATCH S35 01/15] ice: Support UDP segmentation > offload > > From: Brett Creeley <brett.creeley@intel.com> > > 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> > --- > drivers/net/ethernet/intel/ice/ice_main.c | 3 ++- > drivers/net/ethernet/intel/ice/ice_txrx.c | 15 ++++++++++++--- > 2 files changed, 14 insertions(+), 4 deletions(-) Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index d8809a5c07d6..31cd816e7cfb 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2336,7 +2336,8 @@ 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;