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| author |   Dexuan Cui <decui@microsoft.com> | 2018-06-06 21:32:51 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-06-07 16:24:51 -0400 |
| commit | 52acf73b6e9a6962045feb2ba5a8921da2201915 (patch) | |
| tree | 12b72bd842a25fc676842031e26e3ed47fa0f602 /net/ipv4/ip_tunnel.c | |
| parent | net: in virtio_net_hdr only add VLAN_HLEN to csum_start if payload holds vlan (diff) | |
| download | linux-dev-52acf73b6e9a6962045feb2ba5a8921da2201915.tar.xz linux-dev-52acf73b6e9a6962045feb2ba5a8921da2201915.zip | |
hv_netvsc: Fix a network regression after ifdown/ifup
Recently people reported the NIC stops working after
"ifdown eth0; ifup eth0". It turns out in this case the TX queues are not
enabled, after the refactoring of the common detach logic: when the NIC
has sub-channels, usually we enable all the TX queues after all
sub-channels are set up: see rndis_set_subchannel() ->
netif_device_attach(), but in the case of "ifdown eth0; ifup eth0" where
the number of channels doesn't change, we also must make sure the TX queues
are enabled. The patch fixes the regression.
Fixes: 7b2ee50c0cd5 ("hv_netvsc: common detach logic")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_tunnel.c')
0 files changed, 0 insertions, 0 deletions