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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2025-05-30 13:33:21 +0900 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-07-14 05:25:34 -0400 |
| commit | 729b5734197d1afad364bb025a827438bb85e050 (patch) | |
| tree | 1a79631438a674686bfa2bf92e89b206be7fa6a3 /hw/net | |
| parent | abef963a12e2bc266884b27677ff3cf94c09e512 (diff) | |
| download | focaccia-qemu-729b5734197d1afad364bb025a827438bb85e050.tar.gz focaccia-qemu-729b5734197d1afad364bb025a827438bb85e050.zip | |
virtio-net: Add hash type options
By default, virtio-net limits the hash types that will be advertised to the guest so that all hash types are covered by the offloading capability the client provides. This change allows to override this behavior and to advertise hash types that require user-space hash calculation by specifying "on" for the corresponding properties. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-Id: <20250530-vdpa-v1-6-5af4109b1c19@daynix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/virtio-net.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 9888ff22bd..6af230bca9 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3959,9 +3959,14 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) if (qemu_get_vnet_hash_supported_types(qemu_get_queue(n->nic)->peer, &n->rss_data.peer_hash_types)) { n->rss_data.peer_hash_available = true; - n->rss_data.supported_hash_types = n->rss_data.peer_hash_types; + n->rss_data.supported_hash_types = + n->rss_data.specified_hash_types.on_bits | + (n->rss_data.specified_hash_types.auto_bits & + n->rss_data.peer_hash_types); } else { - n->rss_data.supported_hash_types = VIRTIO_NET_RSS_SUPPORTED_HASHES; + n->rss_data.supported_hash_types = + n->rss_data.specified_hash_types.on_bits | + n->rss_data.specified_hash_types.auto_bits; } } @@ -4178,6 +4183,42 @@ static const Property virtio_net_properties[] = { VIRTIO_NET_F_GUEST_USO6, true), DEFINE_PROP_BIT64("host_uso", VirtIONet, host_features, VIRTIO_NET_F_HOST_USO, true), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-ipv4", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_IPv4 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-tcp4", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_TCPv4 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-udp4", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_UDPv4 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-ipv6", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_IPv6 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-tcp6", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_TCPv6 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-udp6", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_UDPv6 - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-ipv6ex", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_IPv6_EX - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-tcp6ex", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_TCPv6_EX - 1, + ON_OFF_AUTO_AUTO), + DEFINE_PROP_ON_OFF_AUTO_BIT64("hash-udp6ex", VirtIONet, + rss_data.specified_hash_types, + VIRTIO_NET_HASH_REPORT_UDPv6_EX - 1, + ON_OFF_AUTO_AUTO), }; static void virtio_net_class_init(ObjectClass *klass, const void *data) |