DPDK patches and discussions
 help / color / mirror / Atom feed
* [dpdk-dev] [PATCH] net/af_packet: fix for stale sockets
@ 2019-08-22  6:25 Abhishek Sachan
  2019-08-23 15:28 ` John W. Linville
  0 siblings, 1 reply; 3+ messages in thread
From: Abhishek Sachan @ 2019-08-22  6:25 UTC (permalink / raw)
  To: linville; +Cc: dev, stable

af_packet driver is leaving stale socket after device is removed.
Ring buffers are memory mapped when device is added using rte_dev_probe.
There is no corresponding munmap call when device is removed/closed.
This commit fixes the issue by calling munmap
from rte_pmd_af_packet_remove().

Bugzilla ID: 339
Cc: stable@dpdk.org

Signed-off-by: Abhishek Sachan <abhishek.sachan@altran.com>
Reviewed-by: John W. Linville <linville@redhat.com>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index 82bf2cd..6df09f2 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -972,6 +972,7 @@ rte_pmd_af_packet_remove(struct rte_vdev_device *dev)
 {
 	struct rte_eth_dev *eth_dev = NULL;
 	struct pmd_internals *internals;
+	struct tpacket_req *req;
 	unsigned q;
 
 	PMD_LOG(INFO, "Closing AF_PACKET ethdev on numa socket %u",
@@ -992,7 +993,10 @@ rte_pmd_af_packet_remove(struct rte_vdev_device *dev)
 		return rte_eth_dev_release_port(eth_dev);
 
 	internals = eth_dev->data->dev_private;
+	req = &internals->req;
 	for (q = 0; q < internals->nb_queues; q++) {
+		munmap(internals->rx_queue[q].map,
+			2 * req->tp_block_size * req->tp_block_nr);
 		rte_free(internals->rx_queue[q].rd);
 		rte_free(internals->tx_queue[q].rd);
 	}
-- 
2.7.4


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-08-27 13:37 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-22  6:25 [dpdk-dev] [PATCH] net/af_packet: fix for stale sockets Abhishek Sachan
2019-08-23 15:28 ` John W. Linville
2019-08-27 13:37   ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).