From: Thomas Monjalon <thomas@monjalon.net>
Date: Mon, 28 Sep 2020 23:14:23 +0000 (+0200)
Subject: net/pcap: release port upon close
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=7d92f2509e9b27cdefa191331112a64c9ef3f22e;p=dpdk.git

net/pcap: release port upon close

The flag RTE_ETH_DEV_CLOSE_REMOVE is set so all port resources
can be freed by rte_eth_dev_close().

Freeing of private port resources is moved
from the ".remove(device)" to the ".dev_close(port)" operation.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index 76e704a65a..909eef8cce 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -734,6 +734,14 @@ eth_dev_close(struct rte_eth_dev *dev)
 	unsigned int i;
 	struct pmd_internals *internals = dev->data->dev_private;
 
+	PMD_LOG(INFO, "Closing pcap ethdev on NUMA socket %d",
+			rte_socket_id());
+
+	rte_free(dev->process_private);
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
 	/* Device wide flag, but cleanup must be performed per queue. */
 	if (internals->infinite_rx) {
 		for (i = 0; i < dev->data->nb_rx_queues; i++) {
@@ -748,6 +756,10 @@ eth_dev_close(struct rte_eth_dev *dev)
 		}
 	}
 
+	if (internals->phy_mac == 0)
+		/* not dynamically allocated, must not be freed */
+		dev->data->mac_addrs = NULL;
+
 	return 0;
 }
 
@@ -1322,6 +1334,7 @@ eth_from_pcaps(struct rte_vdev_device *vdev,
 	else
 		eth_dev->tx_pkt_burst = eth_tx_drop;
 
+	eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 	rte_eth_dev_probing_finish(eth_dev);
 	return 0;
 }
@@ -1544,30 +1557,16 @@ free_kvlist:
 static int
 pmd_pcap_remove(struct rte_vdev_device *dev)
 {
-	struct pmd_internals *internals = NULL;
 	struct rte_eth_dev *eth_dev = NULL;
 
-	PMD_LOG(INFO, "Closing pcap ethdev on numa socket %d",
-			rte_socket_id());
-
 	if (!dev)
 		return -1;
 
-	/* reserve an ethdev entry */
 	eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
 	if (eth_dev == NULL)
-		return -1;
-
-	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
-		internals = eth_dev->data->dev_private;
-		if (internals != NULL && internals->phy_mac == 0)
-			/* not dynamically allocated, must not be freed */
-			eth_dev->data->mac_addrs = NULL;
-	}
+		return 0; /* port already released */
 
 	eth_dev_close(eth_dev);
-
-	rte_free(eth_dev->process_private);
 	rte_eth_dev_release_port(eth_dev);
 
 	return 0;