qed: Fix VF probe failure while FLR

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VFs may hit VF-PF channel timeout while probing, as in some
cases it was observed that VF FLR and VF "acquire" message
transaction (i.e first message from VF to PF in VF's probe flow)
could occur simultaneously which could lead VF to fail sending
"acquire" message to PF as VF is marked disabled from HW perspective
due to FLR, which will result into channel timeout and VF probe failure.

In such cases, try retrying VF "acquire" message so that in later
attempts it could be successful to pass message to PF after the VF
FLR is completed and can be probed successfully.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Manish Chopra 2019-01-28 10:05:06 -08:00 • committed by David S. Miller

parent ff9296966e

commit 327852ec64

1 changed files with 10 additions and 0 deletions

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drivers/net/ethernet/qlogic/qed/qed_vf.c

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