mlx4_en: UDP RSS support
Adding capability for RSS for UDP traffic, hashing is done based on
IP addresses and UDP port number.
The support depends on HW/FW capabilities.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index f421a3d..e2126c7 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -859,8 +859,7 @@
struct mlx4_qp_context context;
struct mlx4_en_rss_context *rss_context;
void *ptr;
- int rss_xor = mdev->profile.rss_xor;
- u8 rss_mask = mdev->profile.rss_mask;
+ u8 rss_mask = 0x3f;
int i, qpn;
int err = 0;
int good_qps = 0;
@@ -906,9 +905,10 @@
rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |
(rss_map->base_qpn));
rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
- rss_context->hash_fn = rss_xor & 0x3;
- rss_context->flags = rss_mask << 2;
+ rss_context->flags = rss_mask;
+ if (priv->mdev->profile.udp_rss)
+ rss_context->base_qpn_udp = rss_context->default_qpn;
err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
&rss_map->indir_qp, &rss_map->indir_state);
if (err)