[PATCH net] ibmvnic: skip send_request_unmap for timeout reset

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 <redacted>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 621be6d2da97..c8b0d99608d5 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c

@@ -247,8 +247,13 @@ 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);
 }

-- 
2.23.0

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Fri, 12 Feb 2021 20:49:00 -0600 you wrote:

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 <redacted>

[...]

Here is the summary with links:
  - [net] ibmvnic: skip send_request_unmap for timeout reset
    https://git.kernel.org/netdev/net/c/7d3a7b9ea59d

You are awesome, thank you!
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