[dpdk-dev] [PATCH v2 09/19] 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 | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index edcf1e0c5..2493a7992 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -48,6 +48,7 @@
 #include <rte_malloc.h>
 #include <rte_vhost.h>
 
+#include "iotlb.h"
 #include "vhost.h"
 
 struct virtio_net *vhost_devices[MAX_VHOST_DEVICE];
@@ -111,13 +112,25 @@ 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;
+
+       if (vring_idx >= VHOST_MAX_VRING) {
+               RTE_LOG(ERR, VHOST_CONFIG,
+                               "Failed not init vring, out of bound (%d)\n",
+                               vring_idx);
+               return;
+       }
+
+       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;
 
@@ -131,12 +144,21 @@ 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;
        int callfd;
 
+       if (vring_idx >= VHOST_MAX_VRING) {
+               RTE_LOG(ERR, VHOST_CONFIG,
+                               "Failed not init vring, out of bound (%d)\n",
+                               vring_idx);
+               return;
+       }
+
+       vq = dev->virtqueue[vring_idx];
        callfd = vq->callfd;
-       init_vring_queue(vq);
+       init_vring_queue(dev, vring_idx);
        vq->callfd = callfd;
 }
 
@@ -153,7 +175,7 @@ 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;
 
@@ -175,7 +197,7 @@ 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);
 }
 
 /*
-- 
2.13.5