From: Ting Xu <ting.xu@intel.com>
Date: Mon, 11 May 2020 15:27:48 +0000 (+0000)
Subject: net/iavf: fix RXDID setting for Rx queue
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=632c7b6edc21b4f0f0eb39806a11d64f944a87e5;p=dpdk.git

net/iavf: fix RXDID setting 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")

Signed-off-by: Ting Xu <ting.xu@intel.com>
Tested-by: Xiaoxiao Zeng <xiaoxiaox.zeng@intel.com>
Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>
---

diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index 5b8d32ee24..33acea54a5 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -638,32 +638,32 @@ 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));