d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/mlx5: do not select legacy MPW implicitly

Browse Source 
The Legacy MPW (multi-packet write) should not be engaged implicitly.
We should exclude this function from a Tx burst routine selection
process unless it is requested specifically by setting the txq_mpw_en
devarg.  Exclude this function from the selection process the same way
it is done for the Enhanced MPW in the mlx5_select_tx_function()
routine.

Fixes: eb8121ab9d ("net/mlx5: introduce Tx burst routine template")
Cc: stable@dpdk.org

Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
This commit is contained in:
Alexander Kozyrev 2020-06-11 17:42:00 +00:00 committed by Ferruh Yigit
parent 73bf9235e9
commit a23d96ae59
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/mlx5/mlx5_rxtx.c
View File

@ -5542,6 +5542,9 @@ mlx5_select_tx_function(struct rte_eth_dev *dev)
/* Does not meet requested offloads at all. */
continue;
}
if ((olx ^ tmp) & MLX5_TXOFF_CONFIG_MPW)
/* Do not enable legacy MPW if not configured. */
continue;
if ((olx ^ tmp) & MLX5_TXOFF_CONFIG_EMPW)
/* Do not enable eMPW if not configured. */
continue;