pds_core: add attempts to fix broken PCI

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If we see a 0xff value from a PCI register read, we know that
the PCI connection is broken, possibly by a low level reset that
didn't go through the nice pci_error_handlers path.

Make use of the PCI cleanup code that we already have from the
reset handlers and add some detection and attempted recovery
from a broken PCI connection.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Shannon Nelson 2023-09-14 15:32:00 -07:00 • committed by David S. Miller

parent ffa5585833

commit 1e18ec3e9d

3 changed files with 19 additions and 2 deletions

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14

drivers/net/ethernet/amd/pds_core/core.c

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3

drivers/net/ethernet/amd/pds_core/core.h

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4

drivers/net/ethernet/amd/pds_core/main.c

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