openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

dwc_eth_qos: do not clear pause flags from phy_device->supported 

phy_device->supported is originally set by the PHY driver.
The ethernet driver should filter phy_device->supported to only contain
flags supported by the IP.
The IP supports setting rx and tx flow control independently,
therefore SUPPORTED_Pause and SUPPORTED_Asym_Pause should not be cleared.
If the flags are cleared, pause frames cannot be enabled (even if they
are supported by the PHY).

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
Acked-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Niklas Cassel 2016-10-18 09:20:33 +02:00 committed by David S. Miller
parent 8d324fd9e1
commit 902943c0d7
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/synopsys/dwc_eth_qos.c
View File

@ -982,7 +982,8 @@ static int dwceqos_mii_probe(struct net_device *ndev)
if (netif_msg_probe(lp))
phy_attached_info(phydev);
phydev->supported &= PHY_GBIT_FEATURES;
phydev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause |
SUPPORTED_Asym_Pause;
lp->link = 0;
lp->speed = 0;