[PATCH v1] net/vhost: add queue status check
From: Miao Li <hidden>
Date: 2021-11-16 08:41:05
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch adds queue status check to make sure that vhost monitor address will not be got until the link between backend and frontend up and the packets are allowed to be queued. Signed-off-by: Miao Li <redacted> --- drivers/net/vhost/rte_eth_vhost.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 070f0e6dfd..9d600054d8 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c@@ -1415,6 +1415,8 @@ vhost_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc) int ret; if (vq == NULL) return -EINVAL; + if (unlikely(rte_atomic32_read(&vq->allow_queuing) == 0)) + return -EINVAL; ret = rte_vhost_get_monitor_addr(vq->vid, vq->virtqueue_id, &vhost_pmc); if (ret < 0)
--
2.25.1