X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_vhost%2Fvirtio-net.c;h=1785695b119ec4b8b333199b06540e5b4d213a49;hb=1160de6779603191f8955fd4076671c788d1ee6c;hp=a03ff30572292f03dd3bc580056c3d2531bf9c80;hpb=4b4af666b989d18a8f823cbe827304ad8b6f1d97;p=dpdk.git

diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index a03ff30572..1785695b11 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -53,7 +53,6 @@
 #include <rte_virtio_net.h>
 
 #include "vhost-net.h"
-#include "virtio-net.h"
 
 #define MAX_VHOST_DEVICE	1024
 static struct virtio_net *vhost_devices[MAX_VHOST_DEVICE];
@@ -296,7 +295,7 @@ vhost_destroy_device(int vid)
 
 	if (dev->flags & VIRTIO_DEV_RUNNING) {
 		dev->flags &= ~VIRTIO_DEV_RUNNING;
-		notify_ops->destroy_device(dev);
+		notify_ops->destroy_device(vid);
 	}
 
 	cleanup_device(dev, 1);
@@ -354,7 +353,7 @@ vhost_reset_owner(int vid)
 
 	if (dev->flags & VIRTIO_DEV_RUNNING) {
 		dev->flags &= ~VIRTIO_DEV_RUNNING;
-		notify_ops->destroy_device(dev);
+		notify_ops->destroy_device(vid);
 	}
 
 	cleanup_device(dev, 0);
@@ -388,8 +387,6 @@ int
 vhost_set_features(int vid, uint64_t *pu)
 {
 	struct virtio_net *dev;
-	uint16_t vhost_hlen;
-	uint16_t i;
 
 	dev = get_device(vid);
 	if (dev == NULL)
@@ -400,9 +397,9 @@ vhost_set_features(int vid, uint64_t *pu)
 	dev->features = *pu;
 	if (dev->features &
 		((1 << VIRTIO_NET_F_MRG_RXBUF) | (1ULL << VIRTIO_F_VERSION_1))) {
-		vhost_hlen = sizeof(struct virtio_net_hdr_mrg_rxbuf);
+		dev->vhost_hlen = sizeof(struct virtio_net_hdr_mrg_rxbuf);
 	} else {
-		vhost_hlen = sizeof(struct virtio_net_hdr);
+		dev->vhost_hlen = sizeof(struct virtio_net_hdr);
 	}
 	LOG_DEBUG(VHOST_CONFIG,
 		"(%d) mergeable RX buffers %s, virtio 1 %s\n",
@@ -410,13 +407,6 @@ vhost_set_features(int vid, uint64_t *pu)
 		(dev->features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ? "on" : "off",
 		(dev->features & (1ULL << VIRTIO_F_VERSION_1)) ? "on" : "off");
 
-	for (i = 0; i < dev->virt_qp_nb; i++) {
-		uint16_t base_idx = i * VIRTIO_QNUM;
-
-		dev->virtqueue[base_idx + VIRTIO_RXQ]->vhost_hlen = vhost_hlen;
-		dev->virtqueue[base_idx + VIRTIO_TXQ]->vhost_hlen = vhost_hlen;
-	}
-
 	return 0;
 }
 
@@ -571,6 +561,14 @@ vhost_set_vring_addr(int vid, struct vhost_vring_addr *addr)
 		return -1;
 	}
 
+	if (vq->last_used_idx != vq->used->idx) {
+		RTE_LOG(WARNING, VHOST_CONFIG,
+			"last_used_idx (%u) and vq->used->idx (%u) mismatches; "
+			"some packets maybe resent for Tx and dropped for Rx\n",
+			vq->last_used_idx, vq->used->idx);
+		vq->last_used_idx     = vq->used->idx;
+	}
+
 	vq->log_guest_addr = addr->log_guest_addr;
 
 	LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address desc: %p\n",
@@ -600,7 +598,6 @@ vhost_set_vring_base(int vid, struct vhost_vring_state *state)
 
 	/* State->index refers to the queue index. The txq is 1, rxq is 0. */
 	dev->virtqueue[state->index]->last_used_idx = state->num;
-	dev->virtqueue[state->index]->last_used_idx_res = state->num;
 
 	return 0;
 }
@@ -718,13 +715,13 @@ vhost_set_backend(int vid, struct vhost_vring_file *file)
 	if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
 		if (dev->virtqueue[VIRTIO_TXQ]->backend != VIRTIO_DEV_STOPPED &&
 		    dev->virtqueue[VIRTIO_RXQ]->backend != VIRTIO_DEV_STOPPED) {
-			if (notify_ops->new_device(dev) < 0)
+			if (notify_ops->new_device(vid) < 0)
 				return -1;
 			dev->flags |= VIRTIO_DEV_RUNNING;
 		}
 	} else if (file->fd == VIRTIO_DEV_STOPPED) {
 		dev->flags &= ~VIRTIO_DEV_RUNNING;
-		notify_ops->destroy_device(dev);
+		notify_ops->destroy_device(vid);
 	}
 
 	return 0;
@@ -767,9 +764,47 @@ rte_vhost_get_queue_num(int vid)
 	return dev->virt_qp_nb;
 }
 
-int rte_vhost_enable_guest_notification(struct virtio_net *dev,
-	uint16_t queue_id, int enable)
+int
+rte_vhost_get_ifname(int vid, char *buf, size_t len)
+{
+	struct virtio_net *dev = get_device(vid);
+
+	if (dev == NULL)
+		return -1;
+
+	len = RTE_MIN(len, sizeof(dev->ifname));
+
+	strncpy(buf, dev->ifname, len);
+	buf[len - 1] = '\0';
+
+	return 0;
+}
+
+uint16_t
+rte_vhost_avail_entries(int vid, uint16_t queue_id)
 {
+	struct virtio_net *dev;
+	struct vhost_virtqueue *vq;
+
+	dev = get_device(vid);
+	if (!dev)
+		return 0;
+
+	vq = dev->virtqueue[queue_id];
+	if (!vq->enabled)
+		return 0;
+
+	return *(volatile uint16_t *)&vq->avail->idx - vq->last_used_idx;
+}
+
+int
+rte_vhost_enable_guest_notification(int vid, uint16_t queue_id, int enable)
+{
+	struct virtio_net *dev = get_device(vid);
+
+	if (dev == NULL)
+		return -1;
+
 	if (enable) {
 		RTE_LOG(ERR, VHOST_CONFIG,
 			"guest notification isn't supported.\n");