[dpdk-dev] [RFC 08/19] vhost: initialize vrings IOTLB caches

[Maxime Coquelin]

The per-virtqueue IOTLB cache init is done at virtqueue
init time. init_vring_queue() now takes vring id as parameter,
so that the IOTLB cache mempool name can be generated.

Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 lib/librte_vhost/vhost.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 5ca4de4..06b8f20 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -48,6 +48,7 @@
 #include <rte_rwlock.h>
 #include <rte_vhost.h>
 
+#include "iotlb.h"
 #include "vhost.h"
 
 struct vhost_device {
@@ -191,13 +192,16 @@ free_device(struct virtio_net *dev)
 }
 
 static void
-init_vring_queue(struct vhost_virtqueue *vq)
+init_vring_queue(struct virtio_net *dev, uint32_t vring_idx)
 {
+       struct vhost_virtqueue *vq = dev->virtqueue[vring_idx];
+
        memset(vq, 0, sizeof(struct vhost_virtqueue));
 
        vq->kickfd = VIRTIO_UNINITIALIZED_EVENTFD;
        vq->callfd = VIRTIO_UNINITIALIZED_EVENTFD;
 
+       vhost_user_iotlb_init(dev, vring_idx);
        /* Backends are set to -1 indicating an inactive device. */
        vq->backend = -1;
 
@@ -211,12 +215,13 @@ init_vring_queue(struct vhost_virtqueue *vq)
 }
 
 static void
-reset_vring_queue(struct vhost_virtqueue *vq)
+reset_vring_queue(struct virtio_net *dev, uint32_t vring_idx)
 {
+       struct vhost_virtqueue *vq = dev->virtqueue[vring_idx];
        int callfd;
 
        callfd = vq->callfd;
-       init_vring_queue(vq);
+       init_vring_queue(dev, vring_idx);
        vq->callfd = callfd;
 }
 
@@ -233,7 +238,7 @@ alloc_vring_queue(struct virtio_net *dev, uint32_t 
vring_idx)
        }
 
        dev->virtqueue[vring_idx] = vq;
-       init_vring_queue(vq);
+       init_vring_queue(dev, vring_idx);
 
        dev->nr_vring += 1;
 
@@ -255,7 +260,7 @@ reset_device(struct virtio_net *dev)
        dev->flags = 0;
 
        for (i = 0; i < dev->nr_vring; i++)
-               reset_vring_queue(dev->virtqueue[i]);
+               reset_vring_queue(dev, i);
 }
 
 /*
-- 
2.9.4