net: thunderx: Fix link status reporting

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[ Upstream commit 3f4c68cfde ]

Check for SMU RX local/remote faults along with SPU LINK
status. Otherwise at times link is UP at our end but DOWN
at link partner's side. Also due to an issue in BGX it's
rarely seen that initialization doesn't happen properly
and SMU RX reports faults with everything fine at SPU.
This patch tries to reinitialize LMAC to fix it.

Also fixed LMAC disable sequence to properly bring down link.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Tao Wang <tao.wang@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Sunil Goutham 2016-06-27 15:30:02 +05:30 • committed by Greg Kroah-Hartman

parent c5852a85ed

commit be9755f999

2 changed files with 62 additions and 31 deletions

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91

drivers/net/ethernet/cavium/thunder/thunder_bgx.c

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2

drivers/net/ethernet/cavium/thunder/thunder_bgx.h

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