patches for DPDK stable branches
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From: Ting Xu <ting.xu@intel.com>
To: dev@dpdk.org
Cc: beilei.xing@intel.com, jingjing.wu@intel.com,
	xiaolong.ye@intel.com, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v1] net/iavf: fix setting wrong RXDID value for Rx queue
Date: Mon, 11 May 2020 15:27:48 +0000
Message-ID: <20200511152748.21144-1-ting.xu@intel.com> (raw)

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:[~2020-05-11  7:28 UTC|newest]

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

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