From: Junyu Jiang <junyux.jiang@intel.com>
Date: Fri, 19 Jun 2020 07:44:02 +0000 (+0000)
Subject: net/iavf: fix RSS RETA after restart
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1feb8e3f4e5c69071e5c461132a8b1bad05609af;p=dpdk.git

net/iavf: fix RSS RETA after restart

This patch moved the RSS initialization from dev start to
dev configure, to fix the issue that RSS redirection table
can not be kept after restarting port.

Fixes: 69dd4c3d0898 ("net/avf: enable queue and device")
Cc: stable@dpdk.org

Signed-off-by: Junyu Jiang <junyux.jiang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>
---

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index b0dd49a8da..c3aa4cd725 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -122,34 +122,6 @@ static const struct eth_dev_ops iavf_eth_dev_ops = {
 	.filter_ctrl                = iavf_dev_filter_ctrl,
 };
 
-static int
-iavf_dev_configure(struct rte_eth_dev *dev)
-{
-	struct iavf_adapter *ad =
-		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
-	struct iavf_info *vf =  IAVF_DEV_PRIVATE_TO_VF(ad);
-	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
-
-	ad->rx_bulk_alloc_allowed = true;
-	/* Initialize to TRUE. If any of Rx queues doesn't meet the
-	 * vector Rx/Tx preconditions, it will be reset.
-	 */
-	ad->rx_vec_allowed = true;
-	ad->tx_vec_allowed = true;
-
-	if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
-		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
-
-	/* Vlan stripping setting */
-	if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN) {
-		if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
-			iavf_enable_vlan_strip(ad);
-		else
-			iavf_disable_vlan_strip(ad);
-	}
-	return 0;
-}
-
 static int
 iavf_init_rss(struct iavf_adapter *adapter)
 {
@@ -206,6 +178,41 @@ iavf_init_rss(struct iavf_adapter *adapter)
 	return 0;
 }
 
+static int
+iavf_dev_configure(struct rte_eth_dev *dev)
+{
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf =  IAVF_DEV_PRIVATE_TO_VF(ad);
+	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
+
+	ad->rx_bulk_alloc_allowed = true;
+	/* Initialize to TRUE. If any of Rx queues doesn't meet the
+	 * vector Rx/Tx preconditions, it will be reset.
+	 */
+	ad->rx_vec_allowed = true;
+	ad->tx_vec_allowed = true;
+
+	if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
+		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
+
+	/* Vlan stripping setting */
+	if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN) {
+		if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
+			iavf_enable_vlan_strip(ad);
+		else
+			iavf_disable_vlan_strip(ad);
+	}
+
+	if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
+		if (iavf_init_rss(ad) != 0) {
+			PMD_DRV_LOG(ERR, "configure rss failed");
+			return -1;
+		}
+	}
+	return 0;
+}
+
 static int
 iavf_init_rxq(struct rte_eth_dev *dev, struct iavf_rx_queue *rxq)
 {
@@ -426,13 +433,6 @@ iavf_dev_start(struct rte_eth_dev *dev)
 		return -1;
 	}
 
-	if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
-		if (iavf_init_rss(adapter) != 0) {
-			PMD_DRV_LOG(ERR, "configure rss failed");
-			goto err_rss;
-		}
-	}
-
 	if (iavf_configure_queues(adapter) != 0) {
 		PMD_DRV_LOG(ERR, "configure queues failed");
 		goto err_queue;
@@ -461,7 +461,6 @@ iavf_dev_start(struct rte_eth_dev *dev)
 err_mac:
 	iavf_add_del_all_mac_addr(adapter, false);
 err_queue:
-err_rss:
 	return -1;
 }