]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
authorHaiyang Zhang <haiyangz@microsoft.com>
Thu, 20 Aug 2020 21:53:15 +0000 (14:53 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Aug 2020 08:41:06 +0000 (10:41 +0200)
commit83236e697f79c561565400a454c0de4532a9aed8
treebeed3ac47d80d7a67e5749b1fe473d43025b5951
parent2dd00ae408a99e6d6afdd2206250939d766a6ba8
hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()

[ Upstream commit c3d897e01aef8ddc43149e4d661b86f823e3aae7 ]

netvsc_vf_xmit() / dev_queue_xmit() will call VF NIC’s ndo_select_queue
or netdev_pick_tx() again. They will use skb_get_rx_queue() to get the
queue number, so the “skb->queue_mapping - 1” will be used. This may
cause the last queue of VF not been used.

Use skb_record_rx_queue() here, so that the skb_get_rx_queue() called
later will get the correct queue number, and VF will be able to use
all queues.

Fixes: b3bf5666a510 ("hv_netvsc: defer queue selection to VF")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/hyperv/netvsc_drv.c