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From: Tiwei Bie <tiwei.bie@intel.com>
To: maxime.coquelin@redhat.com, zhihong.wang@intel.com, dev@dpdk.org
Cc: stable@dpdk.org
Subject: [dpdk-stable] [PATCH 4/4] net/virtio-user: fix used ring update in cvq handling
Date: Wed, 23 Jan 2019 01:01:43 +0800	[thread overview]
Message-ID: <20190122170143.5650-5-tiwei.bie@intel.com> (raw)
In-Reply-To: <20190122170143.5650-1-tiwei.bie@intel.com>

When updating used ring, the id in used element should be the
index of the first desc in the desc chain.

Fixes: f9b9d1a55775 ("net/virtio-user: add multiple queues in device emulation")
Cc: stable@dpdk.org

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
---
 drivers/net/virtio/virtio_user/virtio_user_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 89d287a74..d1157378d 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -722,7 +722,7 @@ virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx)
 
 		/* Update used ring */
 		uep = &vring->used->ring[avail_idx];
-		uep->id = avail_idx;
+		uep->id = desc_idx;
 		uep->len = n_descs;
 
 		vring->used->idx++;
-- 
2.17.1

       reply	other threads:[~2019-01-22 17:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190122170143.5650-1-tiwei.bie@intel.com>
2019-01-22 17:01 ` Tiwei Bie [this message]
2019-01-23 22:08   ` Maxime Coquelin

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