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tg3: power down device only on SYSTEM_POWER_OFF

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Dell R650xs servers hangs on reboot if tg3 driver calls
tg3_power_down.

This happens only if network adapters (BCM5720 for R650xs) were
initialized using SNP (e.g. by booting ipxe.efi).

The actual problem is on Dell side, but this fix allows servers
to come back alive after reboot.

Signed-off-by: George Shuklin <george.shuklin@gmail.com>
Fixes: 2ca1c94ce0 ("tg3: Disable tg3 device on system reboot to avoid triggering AER")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231103115029.83273-1-george.shuklin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
George Shuklin 2023-11-03 13:50:29 +02:00 • committed by Jakub Kicinski
parent c1ed833e0b
commit 9fc3bc7643
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/broadcom/tg3.c
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@ -18127,7 +18127,8 @@ static void tg3_shutdown(struct pci_dev *pdev)
if (netif_running(dev))
dev_close(dev);
tg3_power_down(tp);
if (system_state == SYSTEM_POWER_OFF)
tg3_power_down(tp);
rtnl_unlock();