[PATCH V3 3/6] vDPA: check VIRTIO_NET_F_RSS for max_virtqueue_paris's presence
From: Zhu Lingshan <hidden>
Date: 2022-09-29 01:54:31
Also in:
kvm
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
virtio 1.2 spec says: max_virtqueue_pairs only exists if VIRTIO_NET_F_MQ or VIRTIO_NET_F_RSS is set. So when reporint MQ to userspace, it should check both VIRTIO_NET_F_MQ and VIRTIO_NET_F_RSS. unused parameter struct vdpa_device *vdev is removed Signed-off-by: Zhu Lingshan <redacted> Acked-by: Jason Wang <jasowang@redhat.com> --- drivers/vdpa/vdpa.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index 52b7f5d23127..70448deb9cd9 100644
--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c@@ -799,13 +799,13 @@ static int vdpa_nl_cmd_dev_get_dumpit(struct sk_buff *msg, struct netlink_callba return msg->len; } -static int vdpa_dev_net_mq_config_fill(struct vdpa_device *vdev, - struct sk_buff *msg, u64 features, +static int vdpa_dev_net_mq_config_fill(struct sk_buff *msg, u64 features, const struct virtio_net_config *config) { u16 val_u16; - if ((features & BIT_ULL(VIRTIO_NET_F_MQ)) == 0) + if ((features & BIT_ULL(VIRTIO_NET_F_MQ)) == 0 && + (features & BIT_ULL(VIRTIO_NET_F_RSS)) == 0) return 0; val_u16 = le16_to_cpu(config->max_virtqueue_pairs);
--
2.31.1