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From: Haoqian He <haoqian.he@smartx.com>
To: dev@dpdk.org
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>,
	Chenbo Xia <chenbox@nvidia.com>
Subject: [PATCH] vhost: cleanup vq resubmit info when set_inflight_fd
Date: Thu, 21 Mar 2024 05:57:53 -0400	[thread overview]
Message-ID: <20240321095805.923117-1-haoqian.he@smartx.com> (raw)

We should cleanup vq resubmit info when set_inflight_fd
before set_vring_kick which will check if there is any
inflight io waiting for resubmission.

Otherwise, when the vm is rebooting immediately after
reconnecting to the vhost target (inflight io has not
been resubmitted yet), the vhost backend still use the
old resubmit info set when reconnection.

Signed-off-by: Haoqian He <haoqian.he@smartx.com>
---
 lib/vhost/vhost_user.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c
index 414192500e..7c54afc5fb 100644
--- a/lib/vhost/vhost_user.c
+++ b/lib/vhost/vhost_user.c
@@ -1871,6 +1871,7 @@ vhost_user_set_inflight_fd(struct virtio_net **pdev,
 		if (!vq)
 			continue;
 
+		cleanup_vq_inflight(dev, vq);
 		if (vq_is_packed(dev)) {
 			vq->inflight_packed = addr;
 			vq->inflight_packed->desc_num = queue_size;
-- 
2.41.0


             reply	other threads:[~2024-03-21 10:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-21  9:57 Haoqian He [this message]
2024-04-03  5:08 ` Haoqian He
2024-04-12  8:10 ` Haoqian He
2024-04-25 13:12 ` Maxime Coquelin
2024-04-26 11:09   ` [PATCH v2] vhost: cleanup resubmit info before inflight setup Haoqian He
2024-04-26 21:28     ` Patrick Robb

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