[dpdk-dev] [PATCH] net/virtio: fix kernel set memory table for multi-queue devices

[Thierry Herbelot]

Restore the original code, where VHOST_SET_MEM_TABLE is applied to
all vhostfds of the device.

Fixes: 539d910c9c768 ("net/virtio: add virtio-user memory tables ops")
Cc: stable at dpdk.org

Signed-off-by: Thierry Herbelot <thierry.herbelot at 6wind.com>
---
 drivers/net/virtio/virtio_user/vhost_kernel.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/virtio/virtio_user/vhost_kernel.c b/drivers/net/virtio/virtio_user/vhost_kernel.c
index 58e66bb7b4ae..ad46f10a9300 100644
--- a/drivers/net/virtio/virtio_user/vhost_kernel.c
+++ b/drivers/net/virtio/virtio_user/vhost_kernel.c
@@ -206,6 +206,7 @@ add_memseg_list(const struct rte_memseg_list *msl, void *arg)
 static int
 vhost_kernel_set_memory_table(struct virtio_user_dev *dev)
 {
+	uint32_t i;
 	struct vhost_kernel_data *data = dev->backend_data;
 	struct vhost_memory_kernel *vm;
 	int ret;
@@ -227,9 +228,14 @@ vhost_kernel_set_memory_table(struct virtio_user_dev *dev)
 	if (ret < 0)
 		goto err_free;
 
-	ret = vhost_kernel_ioctl(data->vhostfds[0], VHOST_SET_MEM_TABLE, vm);
-	if (ret < 0)
-		goto err_free;
+	for (i = 0; i < dev->max_queue_pairs; ++i) {
+		if (data->vhostfds[i] < 0)
+			continue;
+
+		ret = vhost_kernel_ioctl(data->vhostfds[i], VHOST_SET_MEM_TABLE, vm);
+		if (ret < 0)
+			goto err_free;
+	}
 
 	free(vm);
 
-- 
2.29.2