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Commit 0e316f1b authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by David S. Miller
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net/mlx4_en: Disable global flow control when PFC enabled 



Fix a bug when FC and PFC are enabled/disabled at the same time.
According to ConnectX-3 Programmer Manual these two features are mutial
exclusive.  So make sure when enabling PFC to turn off global FC and
vise versa.  Otherwise it hurts the performance.

Signed-off-by: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5c044e63

drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c

+2 −2
Original line number Diff line number Diff line
@@ -170,8 +170,8 @@ static int mlx4_en_dcbnl_ieee_setpfc(struct net_device *dev, 
			pfc->mbc,

			pfc->delay);



	prof->rx_pause = !!pfc->pfc_en;

	prof->tx_pause = !!pfc->pfc_en;

	prof->rx_pause = !pfc->pfc_en;

	prof->tx_pause = !pfc->pfc_en;

	prof->rx_ppp = pfc->pfc_en;

	prof->tx_ppp = pfc->pfc_en;