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ibmvnic: skip send_request_unmap for timeout reset

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[ Upstream commit 7d3a7b9ea59ddb223aec59b45fa1713c633aaed4 ]

Timeout reset will trigger the VIOS to unmap it automatically,
similarly as FAILVOER and MOBILITY events. If we unmap it
in the linux side, we will see errors like
"30000003: Error 4 in REQUEST_UNMAP_RSP".
So, don't call send_request_unmap for timeout reset.

Fixes: ed651a10875f ("ibmvnic: Updated reset handling")
Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lijun Pan 2021-02-12 20:49:00 -06:00 committed by Greg Kroah-Hartman
parent 64a87b0b65
commit 95672dd575
1 changed files with 6 additions and 1 deletions
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7
drivers/net/ethernet/ibm/ibmvnic.c
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@ -202,8 +202,13 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter,
if (!ltb->buff)
return;
/* VIOS automatically unmaps the long term buffer at remote
* end for the following resets:
* FAILOVER, MOBILITY, TIMEOUT.
*/
if (adapter->reset_reason != VNIC_RESET_FAILOVER &&
adapter->reset_reason != VNIC_RESET_MOBILITY)
adapter->reset_reason != VNIC_RESET_MOBILITY &&
adapter->reset_reason != VNIC_RESET_TIMEOUT)
send_request_unmap(adapter, ltb->map_id);
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
}