diff options
| author | Sunil Goutham <sgoutham@marvell.com> | 2020-09-01 12:31:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-02 01:37:35 +0300 |
| commit | dc1a9bf2c8169d9f607502162af1858a73a18cb8 (patch) | |
| tree | 55b59e3a10c0a7b3e93c6c19f3bf6b953f0f43fa /drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | |
| parent | ceb96fae397a2fafd631d97edb387707481e7c6b (diff) | |
| download | linux-dc1a9bf2c8169d9f607502162af1858a73a18cb8.tar.xz | |
octeontx2-pf: Add UDP segmentation offload support
Defines UDP segmentation algorithm in hardware and supports
offloading UDP segmentation.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c index 1f90426ce8cd..faaa322265a0 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -524,10 +524,33 @@ static void otx2_sqe_add_ext(struct otx2_nic *pfvf, struct otx2_snd_queue *sq, */ ip_hdr(skb)->tot_len = htons(ext->lso_sb - skb_network_offset(skb)); - } else { + } else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) { ext->lso_format = pfvf->hw.lso_tsov6_idx; + ipv6_hdr(skb)->payload_len = htons(ext->lso_sb - skb_network_offset(skb)); + } else if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) { + __be16 l3_proto = vlan_get_protocol(skb); + struct udphdr *udph = udp_hdr(skb); + u16 iplen; + + ext->lso_sb = skb_transport_offset(skb) + + sizeof(struct udphdr); + + /* HW adds payload size to length fields in IP and + * UDP headers while segmentation, hence adjust the + * lengths to just header sizes. + */ + iplen = htons(ext->lso_sb - skb_network_offset(skb)); + if (l3_proto == htons(ETH_P_IP)) { + ip_hdr(skb)->tot_len = iplen; + ext->lso_format = pfvf->hw.lso_udpv4_idx; + } else { + ipv6_hdr(skb)->payload_len = iplen; + ext->lso_format = pfvf->hw.lso_udpv6_idx; + } + + udph->len = htons(sizeof(struct udphdr)); } } else if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) { ext->tstmp = 1; |