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authorJulian Wiedmann <jwi@linux.ibm.com>2018-09-12 15:31:33 +0200
committerDavid S. Miller <davem@davemloft.net>2018-09-12 13:12:51 -0700
commit04db741d0df02fdb9ea4ddca32615153407dcf7f (patch)
tree55d400ea3dc70ee738f56ef9330700e576989cfb /drivers/s390
parent778b1ac737494cec156f17c80da44664c1f77cf6 (diff)
s390/qeth: switch on SG by default for IQD devices
Scatter-gather transmit brings a nice performance boost. Considering the rather large MTU sizes at play, it's also totally the Right Thing To Do. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/qeth_core_main.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 6b24face21d5..b60055e9cb1a 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5706,6 +5706,8 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card)
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->hw_features |= NETIF_F_SG;
dev->vlan_features |= NETIF_F_SG;
+ if (IS_IQD(card))
+ dev->features |= NETIF_F_SG;
}
return dev;