[PATCH AUTOSEL 4.19 27/60] ibmvnic: Refresh device multicast list after reset

Sasha Levin
2019-06-27T00:37:46Z

From: Thomas Falcon <tlfalcon@linux.ibm.com>

[ Upstream commit be32a24372cf162e825332da1a7ccef058d4f20b ]

It was observed that multicast packets were no longer received after
a device reset. The fix is to resend the current multicast list to
the backing device after recovery.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index bf0a5fe0da17..b88af81499e8 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1854,6 +1854,9 @@ static int do_reset(struct ibmvnic_adapter *adapter,
return 0;
}

+ /* refresh device's multicast list */
+ ibmvnic_set_multi(netdev);
+
/* kick napi */
for (i = 0; i < adapter->req_rx_queues; i++)
napi_schedule(&adapter->napi[i]);
--
2.20.1