net/vhost-vdpa: Report hashing capability

[PATCH 0/6] net/vhost-vdpa: Report hashing capability

Akihiko Odaki posted 6 patches 5 months, 2 weeks ago

Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20250530-vdpa-v1-0-5af4109b1c19@daynix.com

Maintainers: Paolo Bonzini <pbonzini@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>

include/hw/qdev-properties.h   |  18 +++
include/hw/virtio/virtio-net.h |   6 +-
include/net/net.h              |   3 +
hw/core/qdev-properties.c      |  67 ++++++++++-
hw/net/virtio-net.c            | 254 +++++++++++++++++++++++++++--------------
net/net.c                      |   9 ++
net/vhost-vdpa.c               |  34 ++++--
7 files changed, 298 insertions(+), 93 deletions(-)

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[PATCH 0/6] net/vhost-vdpa: Report hashing capability

Posted by Akihiko Odaki 5 months, 2 weeks ago

This patch series was extracted from:
https://lore.kernel.org/qemu-devel/20250313-hash-v4-0-c75c494b495e@daynix.com/
("[PATCH RFC v4 00/11] virtio-net: Offload hashing without eBPF")

According to the specification, virtio-net devices with VIRTIO_NET_F_RSS
or VIRTIO_NET_F_HASH_REPORT can report supported hash types:
https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html#x1-2230004

vDPA also implements the same functionality, but QEMU currently does not
respect it. Ensure that the vDPA device satisfies the requirements of
the VM by checking the supported hash types. This also helps add another
hashing mechanism proposed by the patch series mentioned earlier.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Akihiko Odaki (6):
      qdev-properties: Add DEFINE_PROP_ON_OFF_AUTO_BIT64()
      net/vhost-vdpa: Report hashing capability
      virtio-net: Move virtio_net_get_features() down
      virtio-net: Retrieve peer hashing capability
      net/vhost-vdpa: Remove dummy SetSteeringEBPF
      virtio-net: Add hash type options

 include/hw/qdev-properties.h   |  18 +++
 include/hw/virtio/virtio-net.h |   6 +-
 include/net/net.h              |   3 +
 hw/core/qdev-properties.c      |  67 ++++++++++-
 hw/net/virtio-net.c            | 254 +++++++++++++++++++++++++++--------------
 net/net.c                      |   9 ++
 net/vhost-vdpa.c               |  34 ++++--
 7 files changed, 298 insertions(+), 93 deletions(-)
---
base-commit: 5f90d272553ca0d18ac2457a993febdba9e840e3
change-id: 20250530-vdpa-2c481c64ce45

Best regards,
-- 
Akihiko Odaki <akihiko.odaki@daynix.com>