RFC Virtio-net: Support RSS

From: Sameeh Jubran <[email protected]>

This series implements the Steering Mode feature which was introduced on the virtio-dev list a while ago, which can be found here:
* https://lists.oasis-open.org/archives/virtio-dev/201805/msg00024.html

The first three patches add some infrastructure support that is used in the following three patches.

The ebpf filter doesn't fully work yet as I'm having an issue with the verifier which needs to be fixed.

The patches still need some love as not all of the cases have been handled yet most of the functionality has been implemented.

Please share your thoughts and comments so I'll move forward with sending v1 along with a fully functioning ebpf code.

Sameeh Jubran (6):
Add bpf support to qemu
tap: Add support for bpf ioctls
vhost-net: Expose vhost_net_get_fd
virtio-net: implement steering mode feature
virtio-net: steering mode: Implement rss support
virtio-net: rss: Add bpf filter

 MAINTAINERS                                 |    5 +
 configure                                   |   44 +
 hw/net/rss_bpf_insns.h                      | 3992 +++++++++++++++++++++++++++
 hw/net/rss_tap_bpf.h                        |   37 +
 hw/net/rss_tap_bpf_program.c                |  172 ++
 hw/net/vhost_net.c                          |    2 +-
 hw/net/virtio-net.c                         |  250 +-
 include/hw/virtio/virtio-net.h              |    5 +
 include/net/net.h                           |    3 +-
 include/standard-headers/linux/virtio_net.h |   55 +
 net/tap-bsd.c                               |    5 +
 net/tap-linux.c                             |   29 +-
 net/tap-linux.h                             |    3 +-
 net/tap-solaris.c                           |    5 +
 net/tap-stub.c                              |    5 +
 net/tap.c                                   |    8 +
 net/tap_int.h                               |    1 +
 qapi/net.json                               |   11 +
 scripts/update-linux-headers.sh             |    8 +-
 19 files changed, 4627 insertions(+), 13 deletions(-)
 create mode 100644 hw/net/rss_bpf_insns.h
 create mode 100644 hw/net/rss_tap_bpf.h
 create mode 100644 hw/net/rss_tap_bpf_program.c

2.13.6