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| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2011-10-18 01:51:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-19 03:42:27 -0400 |
| commit | ad86107f7ba38f36597d6cfe9ed2ddfd2c88aee9 (patch) | |
| tree | 49330dd118377cc8699f7754404d6d8e6e004d12 /drivers/net/ethernet/mellanox/mlx4/en_rx.c | |
| parent | 3b61008d88b55467cffee5db9b1e0cf32edbe8ac (diff) | |
| download | blackbird-op-linux-ad86107f7ba38f36597d6cfe9ed2ddfd2c88aee9.tar.gz blackbird-op-linux-ad86107f7ba38f36597d6cfe9ed2ddfd2c88aee9.zip | |
mlx4_en: Adding rxhash support
Moving to Toeplitz function in RSS calculation.
Reporting rxhash in skb.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_rx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index dbf466426f5a..9b18d8554071 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -618,6 +618,9 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud __vlan_hwaccel_put_tag(gro_skb, vid); } + if (dev->features & NETIF_F_RXHASH) + gro_skb->rxhash = be32_to_cpu(cqe->immed_rss_invalid); + skb_record_rx_queue(gro_skb, cq->ring); napi_gro_frags(&cq->napi); @@ -651,6 +654,9 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud skb->protocol = eth_type_trans(skb, dev); skb_record_rx_queue(skb, cq->ring); + if (dev->features & NETIF_F_RXHASH) + skb->rxhash = be32_to_cpu(cqe->immed_rss_invalid); + if (be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_VLAN_PRESENT_MASK) __vlan_hwaccel_put_tag(skb, be16_to_cpu(cqe->sl_vid)); @@ -834,6 +840,9 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) int i, qpn; int err = 0; int good_qps = 0; + static const u32 rsskey[10] = { 0xD181C62C, 0xF7F4DB5B, 0x1983A2FC, + 0x943E1ADB, 0xD9389E6B, 0xD1039C2C, 0xA74499AD, + 0x593D56D9, 0xF3253C06, 0x2ADC1FFC}; en_dbg(DRV, priv, "Configuring rss steering\n"); err = mlx4_qp_reserve_range(mdev->dev, priv->rx_ring_num, @@ -871,6 +880,9 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) (rss_map->base_qpn)); rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn); rss_context->flags = rss_mask; + rss_context->hash_fn = 1; + for (i = 0; i < 10; i++) + rss_context->rss_key[i] = rsskey[i]; if (priv->mdev->profile.udp_rss) rss_context->base_qpn_udp = rss_context->default_qpn; |
