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| author | Brett Creeley <brett.creeley@intel.com> | 2021-03-02 10:12:13 -0800 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-04-22 09:26:22 -0700 |
| commit | c91a4f9feb67a199c27c2fe4df98ef9a49ab8ba0 (patch) | |
| tree | 8dcd3d7a2d2f18cecb25caf297571325e4ddf0d4 /drivers/net/ethernet/intel/iavf/iavf_txrx.c | |
| parent | 142da08c4dc0afd07f9136b4812d5386bd6e1717 (diff) | |
| download | linux-stable-c91a4f9feb67a199c27c2fe4df98ef9a49ab8ba0.tar.gz linux-stable-c91a4f9feb67a199c27c2fe4df98ef9a49ab8ba0.tar.bz2 linux-stable-c91a4f9feb67a199c27c2fe4df98ef9a49ab8ba0.zip | |
iavf: add support for UDP Segmentation Offload
Add code to support UDP segmentation offload (USO) for
hardware that supports it.
Suggested-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_txrx.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_txrx.c b/drivers/net/ethernet/intel/iavf/iavf_txrx.c index d6cba53a3a21..3525eab8e9f9 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_txrx.c +++ b/drivers/net/ethernet/intel/iavf/iavf_txrx.c @@ -1905,13 +1905,20 @@ static int iavf_tso(struct iavf_tx_buffer *first, u8 *hdr_len, /* determine offset of inner transport header */ l4_offset = l4.hdr - skb->data; - /* remove payload length from inner checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); - /* compute length of segmentation header */ - *hdr_len = (l4.tcp->doff * 4) + l4_offset; + 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 */ + *hdr_len = (u8)sizeof(l4.udp) + l4_offset; + } else { + csum_replace_by_diff(&l4.tcp->check, + (__force __wsum)htonl(paylen)); + /* compute length of TCP segmentation header */ + *hdr_len = (u8)((l4.tcp->doff * 4) + l4_offset); + } /* pull values out of skb_shinfo */ gso_size = skb_shinfo(skb)->gso_size; |