ibmvnic: improve failover sysfs entry

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The current implementation relies on H_IOCTL call to issue a
H_SESSION_ERR_DETECTED command to let the hypervisor to send a failover
signal. However, it may not work if there is no backup device or if
the vnic is already in error state,
e.g., "ibmvnic 30000003 env3: rx buffer returned with rc 6".
Add a last resort, that is to schedule a failover reset via CRQ command.

Signed-off-by: Lijun Pan <lijunp213@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Lijun Pan 2021-04-13 03:31:44 -05:00 • committed by David S. Miller

parent 314332023b

commit 334c424147

1 changed files with 8 additions and 6 deletions

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drivers/net/ethernet/ibm/ibmvnic.c

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