On Thu, Jun 2, 2022 at 10:48 AM Zhu Lingshan <[email protected]> wrote: > > If VIRTIO_NET_F_MQ == 0, the virtio device should have one queue pair, > so when userspace querying queue pair numbers, it should return mq=1 > than zero
Spec said: "max_virtqueue_pairs only exists if VIRTIO_NET_F_MQ is set" So we are probably fine. Thanks > > Signed-off-by: Zhu Lingshan <[email protected]> > --- > drivers/vdpa/vdpa.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c > index 030d96bdeed2..50a11ece603e 100644 > --- a/drivers/vdpa/vdpa.c > +++ b/drivers/vdpa/vdpa.c > @@ -818,9 +818,10 @@ static int vdpa_dev_net_mq_config_fill(struct > vdpa_device *vdev, > u16 val_u16; > > if ((features & BIT_ULL(VIRTIO_NET_F_MQ)) == 0) > - return 0; > + val_u16 = 1; > + else > + val_u16 = le16_to_cpu((__force > __le16)config->max_virtqueue_pairs); > > - val_u16 = le16_to_cpu(config->max_virtqueue_pairs); > return nla_put_u16(msg, VDPA_ATTR_DEV_NET_CFG_MAX_VQP, val_u16); > } > > -- > 2.31.1 > _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
