> -----Original Message-----
> From: Maxime Coquelin <maxime.coque...@redhat.com>
> Sent: Friday, March 31, 2023 11:43 PM
> To: dev@dpdk.org; david.march...@redhat.com; Xia, Chenbo
> <chenbo....@intel.com>; m...@redhat.com; f...@redhat.com;
> jasow...@redhat.com; Liang, Cunming <cunming.li...@intel.com>; Xie, Yongji
> <xieyon...@bytedance.com>; echau...@redhat.com; epere...@redhat.com;
> amore...@redhat.com
> Cc: Maxime Coquelin <maxime.coque...@redhat.com>
> Subject: [RFC 16/27] net/vhost: use API to set max queue pairs
>
> In order to support multiqueue with VDUSE, we need to
> be able to limit the maximum number of queue pairs, to
> avoid unnecessary memory consumption since the maximum
> number of queue pairs need to be allocated at device
> creation time, as opposed to Vhost-user which allocate
> only when the frontend initialize them.
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
> ---
> drivers/net/vhost/rte_eth_vhost.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/vhost/rte_eth_vhost.c
> b/drivers/net/vhost/rte_eth_vhost.c
> index 62ef955ebc..8d37ec9775 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -1013,6 +1013,9 @@ vhost_driver_setup(struct rte_eth_dev *eth_dev)
> goto drv_unreg;
> }
>
> + if (rte_vhost_driver_set_max_queue_num(internal->iface_name,
> internal->max_queues))
> + goto drv_unreg;
> +
> if (rte_vhost_driver_callback_register(internal->iface_name,
> &vhost_ops) < 0) {
> VHOST_LOG(ERR, "Can't register callbacks\n");
> --
> 2.39.2
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
