From 9bdc441102f012b70f51e1ca73b603312fff8b5d Mon Sep 17 00:00:00 2001 From: Hans Wippel Date: Thu, 16 Jun 2016 16:19:00 +0200 Subject: [PATCH] qeth: add network device features for VLAN devices Network device features indicate the capabilities of network devices (e.g., TX checksum offloading and TSO) and their configuration state. Additional network device features (vlan_features) indicate for each network device, which capabilities can be used on VLAN devices, that are configured on the respective base network device. In the current qeth implementation, network device features are only set for the base network devices and not for the VLAN devices. Thus, features like TX checksum offloading cannot be used on VLAN devices. This patch adds network device features to vlan_features, so they can be used by VLAN devices. Signed-off-by: Hans Wippel Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- drivers/s390/net/qeth_l2_main.c | 9 +++++++-- drivers/s390/net/qeth_l3_main.c | 3 +++ 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 928a4ad81370..9fd48de38a4c 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -1113,11 +1113,16 @@ static int qeth_l2_setup_netdev(struct qeth_card *card) card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) { card->dev->hw_features = NETIF_F_SG; + card->dev->vlan_features = NETIF_F_SG; /* OSA 3S and earlier has no RX/TX support */ - if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { card->dev->hw_features |= NETIF_F_IP_CSUM; - if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) + card->dev->vlan_features |= NETIF_F_IP_CSUM; + } + if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { card->dev->hw_features |= NETIF_F_RXCSUM; + card->dev->vlan_features |= NETIF_F_RXCSUM; + } /* Turn on SG per default */ card->dev->features |= NETIF_F_SG; } diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index fc8177689d55..05f764c6b23c 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -3106,6 +3106,9 @@ static int qeth_l3_setup_netdev(struct qeth_card *card) card->dev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO; + card->dev->vlan_features = NETIF_F_SG | + NETIF_F_RXCSUM | NETIF_F_IP_CSUM | + NETIF_F_TSO; card->dev->features = NETIF_F_SG; } } -- 2.30.2