diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2017-10-11 13:17:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-11 20:21:23 -0700 |
| commit | f025fd6061e120713d6c11c92983804c6805d6cb (patch) | |
| tree | 236c45bb63db2c27a70309cf4bb90cf3e2510555 /drivers/net/ethernet/mellanox/mlx4/en_netdev.c | |
| parent | f6f0aa97413a420606aabe8142f8a5c0f15b9246 (diff) | |
| download | linux-f025fd6061e120713d6c11c92983804c6805d6cb.tar.bz2 | |
net/mlx4_en: XDP_TX, assign constant values of TX descs on ring creaion
In XDP_TX, some fields in tx_info and tx_desc are constants across
all entries of the different XDP_TX rings.
Assign values to these fields on ring creation time, rather than in
data-path.
Patchset performance tests:
Tested on ConnectX3Pro, Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
Single queue no-RSS optimization ON.
XDP_TX packet rate:
------------------------------
Before | After | Gain |
13.7 Mpps | 14.0 Mpps | %2.2 |
------------------------------
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_netdev.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index e4c7a80ef5a8..d611df2f274d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1752,6 +1752,7 @@ int mlx4_en_start_port(struct net_device *dev) mlx4_en_arm_cq(priv, cq); } else { + mlx4_en_init_tx_xdp_ring_descs(priv, tx_ring); mlx4_en_init_recycle_ring(priv, i); /* XDP TX CQ should never be armed */ } |