diff options
| author | Sunil Goutham <sgoutham@marvell.com> | 2020-01-27 18:35:25 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-27 14:33:39 +0100 |
| commit | 85069e95e53161f8bcc1aa266f47c60c1f3e4ec3 (patch) | |
| tree | 646138ca9fa173d45c5ce8d27a001cccbb0665f2 /drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | |
| parent | 4ff7d1488a8496fddcfdf40c42489eaa64892f3e (diff) | |
octeontx2-pf: Receive side scaling support
Adds receive side scaling (RSS) support to distribute
pkts/flows across multiple queues. Sets up key, indirection
table etc. Also added extraction of HW calculated rxhash and
adding to same to SKB ie NETIF_F_RXHASH offload support.
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 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c index 94dac84de8dc..513b126feaac 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -115,6 +115,28 @@ static void otx2_skb_add_frag(struct otx2_nic *pfvf, struct sk_buff *skb, pfvf->rbsize, DMA_FROM_DEVICE); } +static void otx2_set_rxhash(struct otx2_nic *pfvf, + struct nix_cqe_rx_s *cqe, struct sk_buff *skb) +{ + enum pkt_hash_types hash_type = PKT_HASH_TYPE_NONE; + struct otx2_rss_info *rss; + u32 hash = 0; + + if (!(pfvf->netdev->features & NETIF_F_RXHASH)) + return; + + rss = &pfvf->hw.rss_info; + if (rss->flowkey_cfg) { + if (rss->flowkey_cfg & + ~(NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6)) + hash_type = PKT_HASH_TYPE_L4; + else + hash_type = PKT_HASH_TYPE_L3; + hash = cqe->hdr.flow_tag; + } + skb_set_hash(skb, hash, hash_type); +} + static bool otx2_check_rcv_errors(struct otx2_nic *pfvf, struct nix_cqe_rx_s *cqe, int qidx) { @@ -194,6 +216,8 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, otx2_skb_add_frag(pfvf, skb, cqe->sg.seg_addr, cqe->sg.seg_size); cq->pool_ptrs++; + otx2_set_rxhash(pfvf, cqe, skb); + skb_record_rx_queue(skb, cq->cq_idx); if (pfvf->netdev->features & NETIF_F_RXCSUM) skb->ip_summed = CHECKSUM_UNNECESSARY; |