Hi, > -----Original Message----- > From: Alexander Kozyrev <[email protected]> > Sent: Thursday, June 11, 2020 8:42 PM > To: [email protected] > Cc: [email protected]; Raslan Darawsheh <[email protected]>; Slava > Ovsiienko <[email protected]> > Subject: [PATCH] net/mlx5: do not select legacy MPW implicitly > > The Legacy MPW (multi-packet write) should not be engaged implicitly. > We should exclude this function form 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: eb8121ab9dac ("net/mlx5: introduce Tx burst routine template") > Cc: [email protected] > > Signed-off-by: Alexander Kozyrev <[email protected]> > --- > drivers/net/mlx5/mlx5_rxtx.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c > index 6a17a9a..df58af5 100644 > --- a/drivers/net/mlx5/mlx5_rxtx.c > +++ b/drivers/net/mlx5/mlx5_rxtx.c > @@ -5542,6 +5542,9 @@ enum mlx5_txcmp_code { > /* 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; > -- > 1.8.3.1
Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh
