net: aquantia: Implement pci shutdown callback

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We should close link and all NIC operations during shutdown.
On some systems graceful reboot never closes NIC interface on its own,
but only indicates pci device shutdown. Without explicit handler, NIC
rx rings continued to transfer DMA data into prepared buffers while CPU
rebooted already. That caused memory corruptions on soft reboot.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Igor Russkikh 2018-03-20 14:40:36 +03:00 • committed by David S. Miller

parent 3e9a545131

commit 90869ddfef

3 changed files with 36 additions and 0 deletions

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20

drivers/net/ethernet/aquantia/atlantic/aq_nic.c

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1

drivers/net/ethernet/aquantia/atlantic/aq_nic.h

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15

drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c

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