From: Timur Tabi <timur@codeaurora•org>
To: David Miller <davem@davemloft•net>,
Florian Fainelli <f.fainelli@gmail•com>,
netdev@vger•kernel.org
Subject: [PATCH 2/2] net: qcom/emac: enable flow control if requested
Date: Tue, 1 Nov 2016 13:30:55 -0500 [thread overview]
Message-ID: <1478025055-13167-2-git-send-email-timur@codeaurora.org> (raw)
In-Reply-To: <1478025055-13167-1-git-send-email-timur@codeaurora.org>
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 <timur@codeaurora•org>
---
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;
--
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc. Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2016-11-01 18:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-01 18:30 [PATCH 1/2] net: qcom/emac: configure the external phy to allow pause frames Timur Tabi
2016-11-01 18:30 ` Timur Tabi [this message]
2016-11-01 18:34 ` [PATCH 2/2] net: qcom/emac: enable flow control if requested Florian Fainelli
2016-11-01 19:05 ` Timur Tabi
2016-11-01 18:33 ` [PATCH 1/2] net: qcom/emac: configure the external phy to allow pause frames Florian Fainelli
2016-11-01 18:34 ` Timur Tabi
2016-11-01 18:40 ` [PATCH 0/2] net: qcom/emac: the emac driver requires " Timur Tabi
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