Re: [dpdk-stable] [dpdk-dev] [PATCH] net/iavf: fix queue pairs configuration

["Huang, ZhiminX" <zhiminx.huang@intel.com>]

Tested-by: Huang, ZhiminX <zhiminx.huang@intel.com>

Regards,
HuangZhiMin


> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Zhang,Alvin
> Sent: Wednesday, December 23, 2020 1:30 PM
> To: Xing, Beilei <beilei.xing@intel.com>; Xu, Ting <ting.xu@intel.com>
> Cc: dev@dpdk.org; Zhang, AlvinX <alvinx.zhang@intel.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH] net/iavf: fix queue pairs configuration
> 
> From: Alvin Zhang <alvinx.zhang@intel.com>
> 
> Check if there are enough queue pairs currently allocated, and if not, request
> PF to allocate them.
> 
> Fixes: e436cd43835b ("net/iavf: negotiate large VF and request more queues")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
> ---
>  drivers/net/iavf/iavf_ethdev.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c index
> 7e3c26a..f015121 100644
> --- a/drivers/net/iavf/iavf_ethdev.c
> +++ b/drivers/net/iavf/iavf_ethdev.c
> @@ -372,8 +372,10 @@ struct rte_iavf_xstats_name_off {
>  	} else {
>  		/* Check if large VF is already enabled. If so, disable and
>  		 * release redundant queue resource.
> +		 * Or check if enough queue pairs. If not, request them from PF.
>  		 */
> -		if (vf->lv_enabled) {
> +		if (vf->lv_enabled ||
> +		    num_queue_pairs > vf->vsi_res->num_queue_pairs) {
>  			ret = iavf_queues_req_reset(dev, num_queue_pairs);
>  			if (ret)
>  				return ret;
> --
> 1.8.3.1