> -----Original Message-----
> From: Pei, Andy <andy....@intel.com>
> Sent: Wednesday, April 27, 2022 4:30 PM
> To: dev@dpdk.org
> Cc: Xia, Chenbo <chenbo....@intel.com>; maxime.coque...@redhat.com; Cao,
> Gang <gang....@intel.com>; Liu, Changpeng <changpeng....@intel.com>
> Subject: [PATCH v7 13/18] vdpa/ifc: read virtio max queues from hardware
>
> Original code max_queues is set to IFCVF_MAX_QUEUES.
> New code max_queues is the min of IFCVF_MAX_QUEUES and hardware num_queues.
>
> Signed-off-by: Andy Pei <andy....@intel.com>
> ---
> drivers/vdpa/ifc/ifcvf_vdpa.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
> index 4060a44..5a8cf1c 100644
> --- a/drivers/vdpa/ifc/ifcvf_vdpa.c
> +++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
> @@ -1457,6 +1457,10 @@ struct rte_vdpa_dev_info dev_info[] = {
> internal->hw.blk_cfg->geometry.sectors);
> DRV_LOG(INFO, "num_queues: 0x%08x",
> internal->hw.blk_cfg->num_queues);
> +
> + /* reset max_queue here, to minimum modification */
> + internal->max_queues = RTE_MIN(IFCVF_MAX_QUEUES,
> + internal->hw.blk_cfg->num_queues);
MQ is not supported now in this driver, should we make this change later?
Thanks,
Chenbo
> }
>
> list->internal = internal;
> --
> 1.8.3.1
