The commit will break vhost sample when it runs in second time:
292959c71961acde0cda6e77e737bb0a4df1559c
It should call api to unregister vhost driver when sample exit/quit, then
the socket file will be removed(by calling unlink), and thus make vhost sample
work correctly in second time startup.
Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
---
examples/vhost/main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 72c4773..90666b3 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -2871,6 +2871,16 @@ setup_mempool_tbl(int socket, uint32_t index, char
*pool_name,
}
}
+/* When we receive a HUP signal, unregister vhost driver */
+static void
+sighup_handler(__rte_unused int signum)
+{
+ /* Unregister vhost driver. */
+ int ret = rte_vhost_driver_unregister((char *)&dev_basename);
+ if (ret != 0)
+ rte_exit(EXIT_FAILURE, "vhost driver unregister failure.\n");
+ exit(0);
+}
/*
* Main function, does initialisation and calls the per-lcore functions. The
CUSE
@@ -2887,6 +2897,8 @@ main(int argc, char *argv[])
uint16_t queue_id;
static pthread_t tid;
+ signal(SIGINT, sighup_handler);
+
/* init EAL */
ret = rte_eal_init(argc, argv);
if (ret < 0)
@@ -3060,6 +3072,12 @@ main(int argc, char *argv[])
/* Start CUSE session. */
rte_vhost_driver_session_start();
+
+ /* Unregister vhost driver. */
+ ret = rte_vhost_driver_unregister((char *)&dev_basename);
+ if (ret != 0)
+ rte_exit(EXIT_FAILURE,"vhost driver unregister failure.\n");
+
return 0;
}
--
1.8.4.2
