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net/mlx4_en: Disable global flow control when PFC enabled

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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: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eugenia Emantayev 2013-08-21 10:08:56 +03:00 committed by David S. Miller
parent 5c044e6368
commit 0e316f1b9b
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
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@ -170,8 +170,8 @@ static int mlx4_en_dcbnl_ieee_setpfc(struct net_device *dev,
pfc->mbc, pfc->mbc,
pfc->delay); pfc->delay);
prof->rx_pause = !!pfc->pfc_en; prof->rx_pause = !pfc->pfc_en;
prof->tx_pause = !!pfc->pfc_en; prof->tx_pause = !pfc->pfc_en;
prof->rx_ppp = pfc->pfc_en; prof->rx_ppp = pfc->pfc_en;
prof->tx_ppp = pfc->pfc_en; prof->tx_ppp = pfc->pfc_en;