netdev - [PATCH net-next v2 26/27] net/hyperv: enable passing of VLAN.CFI bit

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Date:   Tue,  3 Jan 2017 21:52:41 +0100 (CET)
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     netdev@...r.kernel.org
Cc:     "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        devel@...uxdriverproject.org
Subject: [PATCH net-next v2 26/27] net/hyperv: enable passing of VLAN.CFI bit

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 drivers/net/hyperv/netvsc_drv.c   | 1 +
 drivers/net/hyperv/rndis_filter.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 6597d7901929..4e20f4c247fa 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -441,6 +441,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 		vlan = (struct ndis_pkt_8021q_info *)((void *)ppi +
 						ppi->ppi_offset);
 		vlan->vlanid = skb->vlan_tci & VLAN_VID_MASK;
+		vlan->cfi = !!(skb->vlan_tci & VLAN_CFI_MASK);
 		vlan->pri = (skb->vlan_tci & VLAN_PRIO_MASK) >>
 				VLAN_PRIO_SHIFT;
 	}
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 7f7b410a41c2..9759d7380037 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -382,6 +382,7 @@ static int rndis_filter_receive_data(struct rndis_device *dev,
 	vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO);
 	if (vlan) {
 		vlan_tci = vlan->vlanid |
+			(vlan->cfi ? VLAN_CFI_MASK : 0) |
 			(vlan->pri << VLAN_PRIO_SHIFT);
 	}
 
-- 
2.11.0