xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: netcp: Fixes SGMII reset on network interface shutdown

Browse Source 
This patch asserts SGMII RTRESET, i.e. resetting the SGMII Tx/Rx
logic,  during network interface shutdown to avoid having the
hardware wedge when shutting down with high incoming traffic rates.
This is cleared (brought out of RTRESET) when the interface is
brought back up.

Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WingMan Kwok
2015-07-24 15:02:29 -04:00
committed by David S. Miller
parent 54109da31f
commit 7025e88a79
3 changed files with 47 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/ti/netcp.h
View File

@@ -223,6 +223,7 @@ void *netcp_device_find_module(struct netcp_device *netcp_device,
/* SGMII functions */
int netcp_sgmii_reset(void __iomem *sgmii_ofs, int port);
bool netcp_sgmii_rtreset(void __iomem *sgmii_ofs, int port, bool set);
int netcp_sgmii_get_port_link(void __iomem *sgmii_ofs, int port);
int netcp_sgmii_config(void __iomem *sgmii_ofs, int port, u32 interface);