From 61d3e1d9bc2a1910d773cbf4ed6f587a7a6166b5 Mon Sep 17 00:00:00 2001
From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Date: Mon, 12 Jun 2017 20:47:45 -0400
Subject: [PATCH] ibmvnic: Remove netdev notify for failover resets
References: bsc#1044120
Patch-mainline: v4.13-rc1
Git-commit: 61d3e1d9bc2a1910d773cbf4ed6f587a7a6166b5
When handling a driver reset due to a failover of the backing
server on the vios, doing the netdev_notify_peers() can cause
network traffic to stall or halt. Remove the netdev notify call
for failover resets.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
drivers/net/ethernet/ibm/ibmvnic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index fd3ef3005fb0..59ea7a5ae776 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1364,7 +1364,9 @@ static int do_reset(struct ibmvnic_adapter *adapter,
for (i = 0; i < adapter->req_rx_queues; i++)
napi_schedule(&adapter->napi[i]);
- netdev_notify_peers(netdev);
+ if (adapter->reset_reason != VNIC_RESET_FAILOVER)
+ netdev_notify_peers(netdev);
+
return 0;
}
--
2.10.2