Brijesh Singh d542800d1e tap: set vhostfd passed from qemu cli to non-blocking ...

A guest boot hangs while probing the network interface when
iommu_platform=on is used.

The following qemu cli hangs without this patch:

# $QEMU \
  -netdev tap,fd=3,id=hostnet0,vhost=on,vhostfd=4 3<>/dev/tap67 4<>/dev/host-net \
  -device virtio-net-pci,netdev=hostnet0,id=net0,iommu_platform=on,disable-legacy=on \
  ...

Commit: c471ad0e9bd46 (vhost_net: device IOTLB support) took care of
setting vhostfd to non-blocking when QEMU opens /dev/host-net but if
the fd is passed from qemu cli then we need to ensure that fd is set
to non-blocking.

Fixes: c471ad0e9bd46 ("vhost_net: device IOTLB support")
Cc: qemu-stable@nongnu.org
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

2018-06-15 10:39:53 +08:00

..

can

object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence

2018-06-12 12:07:30 +02:00

checksum.c

net: optimize checksum computation

2017-01-20 10:36:38 +08:00

clients.h

Drop superfluous includes of qapi-types.h and test-qapi-types.h

2018-02-09 05:05:11 +01:00

colo-compare.c

object: fix OBJ_PROP_LINK_UNREF_ON_RELEASE ambivalence

2018-06-12 12:07:30 +02:00

colo.c

colo: use local path for local headers

2018-06-01 19:20:38 +03:00

colo.h

colo: compare the packet based on the tcp sequence number

2018-01-29 16:05:37 +08:00

dump.c

net: Remove the deprecated way of dumping network packets

2018-03-05 10:30:15 +08:00

eth.c

net/eth: fix incorrect check of iov_to_buf() return value

2017-07-31 13:06:38 +03:00

filter-buffer.c

qapi: Move qapi-schema.json to qapi/, rename generated files

2018-03-02 13:45:57 -06:00

filter-mirror.c

Include less of the generated modular QAPI headers

2018-03-02 13:45:50 -06:00

filter-replay.c

Include qapi/error.h exactly where needed

2018-02-09 13:50:17 +01:00

filter-rewriter.c

colo: use local path for local headers

2018-06-01 19:20:38 +03:00

filter.c

qapi: Change data type of the FOO_lookup generated for enum FOO

2017-09-04 13:09:13 +02:00

hub.c

net: Get rid of 'vlan' terminology and use 'hub' instead in the source files

2018-05-14 15:47:14 +08:00

hub.h

net: Allow hubports to connect to other netdevs

2018-01-29 16:05:37 +08:00

l2tpv3.c

qapi: Change Netdev into a flat union

2016-07-19 20:18:02 +02:00

Makefile.objs

net/can: simple messages transport implementation for QEMU

2018-02-13 11:44:13 +01:00

net.c

net: Remove the deprecated "vlan" parameter

2018-05-14 15:47:14 +08:00

netmap.c

qapi: Change Netdev into a flat union

2016-07-19 20:18:02 +02:00

queue.c

net: Clean up includes

2016-02-04 17:41:30 +00:00

slirp.c

net/slirp: Convert atoi to qemu_strtoi to allow error checking

2018-05-31 21:19:24 +02:00

socket.c

net/socket: fix coverity issue

2017-11-13 18:05:12 +08:00

tap_int.h

Include less of the generated modular QAPI headers

2018-03-02 13:45:50 -06:00

tap-bsd.c

tap-bsd: OpenBSD uses tap(4) now

2016-10-26 09:57:59 +08:00

tap-linux.c

Convert error_report() to warn_report()

2017-07-13 13:49:58 +02:00

tap-linux.h

Clean up decorations and whitespace around header guards

2016-07-12 16:20:46 +02:00

tap-solaris.c

util: move declarations out of qemu-common.h

2016-03-22 22:20:17 +01:00

tap-stub.c

net/tap: Replace tap-haiku.c and tap-aix.c by a generic tap-stub.c

2017-05-23 10:10:38 +08:00

tap-win32.c

qapi: Change Netdev into a flat union

2016-07-19 20:18:02 +02:00

tap.c

tap: set vhostfd passed from qemu cli to non-blocking

2018-06-15 10:39:53 +08:00

trace-events

colo: compare the packet based on the tcp sequence number

2018-01-29 16:05:37 +08:00

util.c

net: Clean up includes

2016-02-04 17:41:30 +00:00

util.h

all: Clean up includes

2016-02-23 12:43:05 +00:00

vde.c

net/vde: print error on vde_open() failure

2018-03-26 14:52:43 +08:00

vhost-user.c

vhost-user: introduce shared vhost-user state

2018-05-24 21:14:11 +03:00