From: Wenwu Ma <wenwux.ma@intel.com>
To: dev@dpdk.org
Cc: Wenwu Ma <wenwux.ma@intel.com>, stable@dpdk.org
Subject: [PATCH] vhost: fix net header settings in vhost datapath
Date: Wed, 4 Jan 2023 10:39:45 +0800 [thread overview]
Message-ID: <20230104023945.6669-1-wenwux.ma@intel.com> (raw)
In vhost sync batch enqueue, the "num_buffers" of
virtio net header is not be set, but it should be
set to 1 if the mrg_rxbuf feature is turned on,
This patch fix the issue.
Fixes: ef861692c398 ("vhost: add packed ring batch enqueue")
Cc: stable@dpdk.org
Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
---
lib/vhost/virtio_net.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c
index cf796183a0..61d9052a57 100644
--- a/lib/vhost/virtio_net.c
+++ b/lib/vhost/virtio_net.c
@@ -1493,6 +1493,12 @@ virtio_dev_rx_batch_packed_copy(struct virtio_net *dev,
sizeof(struct virtio_net_hdr_mrg_rxbuf);
}
+ if (rxvq_is_mergeable(dev)) {
+ vhost_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
+ ASSIGN_UNLESS_EQUAL(hdrs[i]->num_buffers, 1);
+ }
+ }
+
vhost_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE)
virtio_enqueue_offload(pkts[i], &hdrs[i]->hdr);
--
2.25.1
next reply other threads:[~2023-01-04 2:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-04 2:39 Wenwu Ma [this message]
2023-01-13 3:06 ` Ling, WeiX
2023-01-13 3:16 ` Jiang, Cheng1
2023-02-03 14:43 ` Maxime Coquelin
2023-02-03 14:58 ` Maxime Coquelin
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