diff options
| author | Ido Shamay <idos@mellanox.com> | 2015-04-02 16:31:06 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-02 16:24:50 -0400 |
| commit | 802f42a8d99254b8602bf65cc50e8333bf479f13 (patch) | |
| tree | d8adf14aa8b1f97fcb91141e778a381cd8852a0c /drivers/net/ethernet/mellanox/mlx4/main.c | |
| parent | 9f0d34bc344889c2e6c593bd949d7ab821f0f4a5 (diff) | |
net/mlx4: Add RSS support for fragmented IP datagrams
Enable RSS support for fragmented IP packets, when device supports it.
Until now, fragmented IP packets were directed only to the default_qpn.
Since IP fragments (datagram) have no upper protocols (L3 IP packets),
hash is performed on 3-tuple - dst MAC, source IP and dest IP. The HW
makes sure that this holds for the 1st fragment too, so all fragments
go to the same QP.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 43aa76775b5f..ee0a67069b57 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -885,6 +885,8 @@ static int mlx4_slave_cap(struct mlx4_dev *dev) mlx4_warn(dev, "Timestamping is not supported in slave mode\n"); slave_adjust_steering_mode(dev, &dev_cap, &hca_param); + mlx4_dbg(dev, "RSS support for IP fragments is %s\n", + hca_param.rss_ip_frags ? "on" : "off"); if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP && dev->caps.bf_reg_size) |