From: Jerome Jutteau <jerome.jutteau@outscale.com>
Date: Mon, 19 Oct 2015 09:44:26 +0000 (+0200)
Subject: vhost: keep device identifier after reset owner
X-Git-Tag: spdx-start~8376
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=2c95f4de6a7ec59c5793c64588066b6b2b8e6142;p=dpdk.git

vhost: keep device identifier after reset owner

virtio-net clean and init device after a VHOST_USER_RESET_OWNER.
This reset device identifier to 0 and break ll_root listing logic.
This patch keep the old device identifier and re-write it on the cleaned
device.

Signed-off-by: Jerome Jutteau <jerome.jutteau@outscale.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---

diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index d0f1764ed9..955a29d79b 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -399,11 +399,14 @@ static int
 reset_owner(struct vhost_device_ctx ctx)
 {
 	struct virtio_net_config_ll *ll_dev;
+	uint64_t device_fh;
 
 	ll_dev = get_config_ll_entry(ctx);
+	device_fh = ll_dev->dev.device_fh;
 
 	cleanup_device(&ll_dev->dev);
 	init_device(&ll_dev->dev);
+	ll_dev->dev.device_fh = device_fh;
 
 	return 0;
 }