From: Stephen Hemminger <stephen@networkplumber.org>
Date: Fri, 14 Dec 2018 01:26:20 +0000 (-0800)
Subject: net/netvsc: fix transmit descriptor pool cleanup
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c578d8507b4325747bbdb3993774e59fbad45d84;p=dpdk.git

net/netvsc: fix transmit descriptor pool cleanup

On device close or startup errors, the transmit descriptor pool
was being left behind.

Fixes: 4e9c73e96e83 ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
---

diff --git a/drivers/net/netvsc/hn_ethdev.c b/drivers/net/netvsc/hn_ethdev.c
index 22561471aa..6c40ac78dc 100644
--- a/drivers/net/netvsc/hn_ethdev.c
+++ b/drivers/net/netvsc/hn_ethdev.c
@@ -801,6 +801,7 @@ eth_hn_dev_init(struct rte_eth_dev *eth_dev)
 failed:
 	PMD_INIT_LOG(NOTICE, "device init failed");
 
+	hn_tx_pool_uninit(eth_dev);
 	hn_detach(hv);
 	return err;
 }
@@ -823,6 +824,7 @@ eth_hn_dev_uninit(struct rte_eth_dev *eth_dev)
 	eth_dev->rx_pkt_burst = NULL;
 
 	hn_detach(hv);
+	hn_tx_pool_uninit(eth_dev);
 	rte_vmbus_chan_close(hv->primary->chan);
 	rte_free(hv->primary);
 	rte_eth_dev_owner_delete(hv->owner.id);
diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index 622a83983e..6197118b01 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c
@@ -199,6 +199,17 @@ hn_tx_pool_init(struct rte_eth_dev *dev)
 	return 0;
 }
 
+void
+hn_tx_pool_uninit(struct rte_eth_dev *dev)
+{
+	struct hn_data *hv = dev->data->dev_private;
+
+	if (hv->tx_pool) {
+		rte_mempool_free(hv->tx_pool);
+		hv->tx_pool = NULL;
+	}
+}
+
 static void hn_reset_txagg(struct hn_tx_queue *txq)
 {
 	txq->agg_szleft = txq->agg_szmax;
diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h
index cd173f6af9..7f3266c451 100644
--- a/drivers/net/netvsc/hn_var.h
+++ b/drivers/net/netvsc/hn_var.h
@@ -150,6 +150,7 @@ uint16_t hn_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 		      uint16_t nb_pkts);
 
 int	hn_tx_pool_init(struct rte_eth_dev *dev);
+void	hn_tx_pool_uninit(struct rte_eth_dev *dev);
 int	hn_dev_link_update(struct rte_eth_dev *dev, int wait);
 int	hn_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 			      uint16_t nb_desc, unsigned int socket_id,