[PATCH 5.12 482/700] Revert "ibmvnic: remove duplicate napi_schedule call in open function"

From: Greg Kroah-Hartman
Date: Mon Jul 12 2021 - 03:53:42 EST


From: Dany Madden <drt@xxxxxxxxxxxxx>

[ Upstream commit 2ca220f92878470c6ba03f9946e412323093cc94 ]

This reverts commit 7c451f3ef676c805a4b77a743a01a5c21a250a73.

When a vnic interface is taken down and then up, connectivity is not
restored. We bisected it to this commit. Reverting this commit until
we can fully investigate the issue/benefit of the change.

Fixes: 7c451f3ef676 ("ibmvnic: remove duplicate napi_schedule call in open function")
Reported-by: Cristobal Forno <cforno12@xxxxxxxxxxxxx>
Reported-by: Abdul Haleem <abdhalee@xxxxxxxxxx>
Signed-off-by: Dany Madden <drt@xxxxxxxxxxxxx>
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/ibm/ibmvnic.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index b920132d4940..b2f5250f77a9 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1186,6 +1186,11 @@ static int __ibmvnic_open(struct net_device *netdev)

netif_tx_start_all_queues(netdev);

+ if (prev_state == VNIC_CLOSED) {
+ for (i = 0; i < adapter->req_rx_queues; i++)
+ napi_schedule(&adapter->napi[i]);
+ }
+
adapter->state = VNIC_OPEN;
return rc;
}
--
2.30.2