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From: "Zeng, XiaoxiaoX" <xiaoxiaox.zeng@intel.com>
To: "Xu, Ting" <ting.xu@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Xing, Beilei" <beilei.xing@intel.com>,
	"Wu, Jingjing" <jingjing.wu@intel.com>,
	"Ye, Xiaolong" <xiaolong.ye@intel.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH v1] net/iavf: fix setting wrong RXDID value for	Rx queue
Date: Fri, 15 May 2020 03:29:40 +0000
Message-ID: <FA979DD015B0CA41A7C777E75BD0A9F003E903BC@CDSMSX102.ccr.corp.intel.com> (raw)
In-Reply-To: <20200511152748.21144-1-ting.xu@intel.com>


Tested-by: Zeng,XiaoxiaoX<xiaoxiaox.zeng@intel.com>


Best regards,
Zeng,xiaoxiao


> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Ting Xu
> Sent: Monday, May 11, 2020 11:28 PM
> To: dev@dpdk.org
> Cc: Xing, Beilei <beilei.xing@intel.com>; Wu, Jingjing
> <jingjing.wu@intel.com>; Ye, Xiaolong <xiaolong.ye@intel.com>;
> stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v1] net/iavf: fix setting wrong RXDID value for Rx
> queue
> 
> CVL kernel PF configures all reserved queues for VF, including Rx queue
> RXDID. The number of reserved queues is the maximum between Tx and Rx
> queues. If the number of the enabled Rx queues is less than that of reserved
> queues, required RXDID will only be set for those enabled, but default value
> (0) is set for others.
> However, RXDID 0 (legacy 16byte descriptor) is not supported now, PF will
> return error when configuring those disabled VF queues.
> 
> In this patch, required RXDID is set for all reserved Rx queues, no matter
> enabled or not. In this way, PF will configure Rx queues correctly without
> reporting error.
> 
> Fixes: b8b4c54ef9b0 ("net/iavf: support flexible Rx descriptor in normal path")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ting Xu <ting.xu@intel.com>
> ---
>  drivers/net/iavf/iavf_vchnl.c | 44 +++++++++++++++++------------------
>  1 file changed, 22 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c index
> 2a0cdd927..328cfdf01 100644
> --- a/drivers/net/iavf/iavf_vchnl.c
> +++ b/drivers/net/iavf/iavf_vchnl.c
> @@ -593,32 +593,32 @@ iavf_configure_queues(struct iavf_adapter
> *adapter)
>  			vc_qp->rxq.ring_len = rxq[i]->nb_rx_desc;
>  			vc_qp->rxq.dma_ring_addr = rxq[i]-
> >rx_ring_phys_addr;
>  			vc_qp->rxq.databuffer_size = rxq[i]->rx_buf_len;
> +		}
> 
>  #ifndef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
> -			if (vf->vf_res->vf_cap_flags &
> -			    VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC &&
> -			    vf->supported_rxdid &
> BIT(IAVF_RXDID_COMMS_OVS_1)) {
> -				vc_qp->rxq.rxdid =
> IAVF_RXDID_COMMS_OVS_1;
> -				PMD_DRV_LOG(NOTICE, "request RXDID
> == %d in "
> -					    "Queue[%d]", vc_qp->rxq.rxdid, i);
> -			} else {
> -				vc_qp->rxq.rxdid = IAVF_RXDID_LEGACY_1;
> -				PMD_DRV_LOG(NOTICE, "request RXDID
> == %d in "
> -					    "Queue[%d]", vc_qp->rxq.rxdid, i);
> -			}
> +		if (vf->vf_res->vf_cap_flags &
> +			VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC &&
> +			vf->supported_rxdid &
> BIT(IAVF_RXDID_COMMS_OVS_1)) {
> +			vc_qp->rxq.rxdid = IAVF_RXDID_COMMS_OVS_1;
> +			PMD_DRV_LOG(NOTICE, "request RXDID == %d in "
> +					"Queue[%d]", vc_qp->rxq.rxdid, i);
> +		} else {
> +			vc_qp->rxq.rxdid = IAVF_RXDID_LEGACY_1;
> +			PMD_DRV_LOG(NOTICE, "request RXDID == %d in "
> +					"Queue[%d]", vc_qp->rxq.rxdid, i);
> +		}
>  #else
> -			if (vf->vf_res->vf_cap_flags &
> -			    VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC &&
> -			    vf->supported_rxdid &
> BIT(IAVF_RXDID_LEGACY_0)) {
> -				vc_qp->rxq.rxdid = IAVF_RXDID_LEGACY_0;
> -				PMD_DRV_LOG(NOTICE, "request RXDID
> == %d in "
> -					    "Queue[%d]", vc_qp->rxq.rxdid, i);
> -			} else {
> -				PMD_DRV_LOG(ERR, "RXDID == 0 is not
> supported");
> -				return -1;
> -			}
> -#endif
> +		if (vf->vf_res->vf_cap_flags &
> +			VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC &&
> +			vf->supported_rxdid & BIT(IAVF_RXDID_LEGACY_0))
> {
> +			vc_qp->rxq.rxdid = IAVF_RXDID_LEGACY_0;
> +			PMD_DRV_LOG(NOTICE, "request RXDID == %d in "
> +					"Queue[%d]", vc_qp->rxq.rxdid, i);
> +		} else {
> +			PMD_DRV_LOG(ERR, "RXDID == 0 is not supported");
> +			return -1;
>  		}
> +#endif
>  	}
> 
>  	memset(&args, 0, sizeof(args));
> --
> 2.17.1


  reply	other threads:[~2020-05-15  3:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-11 15:27 [dpdk-stable] " Ting Xu
2020-05-15  3:29 ` Zeng, XiaoxiaoX [this message]
2020-05-18  2:01 ` Ye Xiaolong

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