linux/drivers/vhost
Yunjian Wang dc9c9e72ff vhost_net: avoid tx queue stuck when sendmsg fails
Currently the driver doesn't drop a packet which can't be sent by tun
(e.g bad packet). In this case, the driver will always process the
same packet lead to the tx queue stuck.

To fix this issue:
1. in the case of persistent failure (e.g bad packet), the driver
   can skip this descriptor by ignoring the error.
2. in the case of transient failure (e.g -ENOBUFS, -EAGAIN and -ENOMEM),
   the driver schedules the worker to try again.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/1610685980-38608-1-git-send-email-wangyunjian@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-19 11:13:30 -08:00
..
iotlb.c vhost: Fix documentation 2020-09-24 05:54:36 -04:00
Kconfig vhost_vdpa: implement IRQ offloading in vhost_vdpa 2020-08-05 11:08:42 -04:00
Makefile vhost: introduce vDPA-based backend 2020-04-02 10:41:40 -04:00
net.c vhost_net: avoid tx queue stuck when sendmsg fails 2021-01-19 11:13:30 -08:00
scsi.c vhost scsi: fix error return code in vhost_scsi_set_endpoint() 2020-12-18 16:14:31 -05:00
test.c tools/virtio: Add --reset 2020-06-22 12:34:21 -04:00
test.h tools/virtio: Add --reset 2020-06-22 12:34:21 -04:00
vdpa.c vhost_vdpa: switch to vmemdup_user() 2020-12-18 16:14:28 -05:00
vhost.c vhost: add helper to check if a vq has been setup 2020-11-15 17:30:54 -05:00
vhost.h vhost: add helper to check if a vq has been setup 2020-11-15 17:30:54 -05:00
vringh.c vhost: vringh: use krealloc_array() 2020-12-15 12:13:37 -08:00
vsock.c vhost/vsock: add IOTLB API support 2020-12-27 05:49:01 -05:00