the number of unsent or unacked packets. It is available for
SOCK_STREAM, SOCK_SEQPACKET and SOCK_DGRAM.
As this information is transport-dependent, a new optional callback
is introduced: stream_bytes_unsent.
The first patch add ioctl support in AF_VSOCK, while the second
patch introduce support for SOCK_STREAM and SOCK_SEQPACKET
in all virtio-based transports: virtio_transport (G2H),
vhost-vsock (H2G) and vsock-loopback.
The latest patch introduce two tests for this new feature.
More details can be found in each patch changelog.
v1->v2
Applied all Stefano's suggestions:
- vsock_do_ioctl has been rewritten
- ioctl(SIOCOUTQ) test is skipped when it is not supported
- Minor variable/function name changes
- rebased to latest net-next
Link: https://lore.kernel.org/netdev/AS2P194MB2170C0FC43DDA2CB637CE6B29A3E2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Luigi Leonardi (3):
vsock: add support for SIOCOUTQ ioctl for all vsock socket types.
vsock/virtio: add SIOCOUTQ support for all virtio based transports
test/vsock: add ioctl unsent bytes test
drivers/vhost/vsock.c | 4 +-
include/linux/virtio_vsock.h | 7 ++
include/net/af_vsock.h | 3 +
net/vmw_vsock/af_vsock.c | 51 ++++++++++++++-
net/vmw_vsock/virtio_transport.c | 4 +-
net/vmw_vsock/virtio_transport_common.c | 33 ++++++++++
net/vmw_vsock/vsock_loopback.c | 7 ++
tools/testing/vsock/util.c | 6 +-
tools/testing/vsock/util.h | 3 +
tools/testing/vsock/vsock_test.c | 85 +++++++++++++++++++++++++
10 files changed, 195 insertions(+), 8 deletions(-)
--
2.34.1
