From: Julian Wiedmann <jwi@linux.ibm.com>
Subject: s390/qeth: support GRO flush timer
Patch-mainline: v4.15-rc1
Git-commit: 978759e8266d6f778fd7f8ae0d4a5e2ddb0558f7
References: FATE#326350, LTC#169511, bsc#1113509

Summary:     qeth: performance improvements
Description: This adds recent functional and performance improvements for the
             qeth network driver.
             Primarily this brings Scatter-Gather support for HiperSockets,
             reduced CPU consumption in the L3 IPv4 transmit path for OSA,
             improved Promiscuous Mode performance due to IFF_UNICAST_FLT,
             support for Scatter-Gather on z/VM virtual NICs, and
             support for delayed GRO flushing.

             For sanity & stability reasons, this effectively constitutes a
             backport of the qeth device driver from 4.19 mainline.
             

Upstream-Description:

             s390/qeth: support GRO flush timer

             Switch to napi_complete_done(), and thus enable delayed GRO flushing.
             The timeout is configured via /sys/class/net/<if>/gro_flush_timeout.

             Default timeout is 0, so no change in behaviour.

             Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
             Reviewed-by: Eric Dumazet <edumazet@google.com>
             Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/s390/net/qeth_core_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5387,7 +5387,7 @@ int qeth_poll(struct napi_struct *napi,
 		}
 	}
 
-	napi_complete(napi);
+	napi_complete_done(napi, work_done);
 	if (qdio_start_irq(card->data.ccwdev, 0))
 		napi_schedule(&card->napi);
 out: