[PATCH 2/2] net: qcom/emac: enable flow control if requested
From: Timur Tabi <hidden>
Date: 2016-11-01 18:31:02
Subsystem:
networking drivers, qualcomm emac gigabit ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Timur Tabi, Linus Torvalds
If the PHY has been configured to allow pause frames, then the MAC should be configured to generate and/or accept those frames. Signed-off-by: Timur Tabi <redacted> --- drivers/net/ethernet/qualcomm/emac/emac-mac.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-mac.c b/drivers/net/ethernet/qualcomm/emac/emac-mac.c
index 70a55dc..46e19e9 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-mac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac-mac.c@@ -575,10 +575,12 @@ void emac_mac_start(struct emac_adapter *adpt) mac |= TXEN | RXEN; /* enable RX/TX */ - /* We don't have ethtool support yet, so force flow-control mode - * to 'full' always. - */ - mac |= TXFC | RXFC; + /* Configure MAC flow control to patch the PHY's settings */ + if (phydev->pause) + mac |= RXFC; + + if (!phydev->pause && phydev->asym_pause) + mac |= TXFC; /* setup link speed */ mac &= ~SPEED_MASK;
--
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