X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_vhost%2Fvhost.h;h=658f6fc287e27a525d73d862b9b4bec1aae5a974;hb=2b9a66e1b606d3813d72dd81c626949e09706e27;hp=75d79f80a71deffdf6338a1a0a3fc69001b8aa2b;hpb=3e1e9c24648a44f10c4e3f04f016cdb881535218;p=dpdk.git

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 75d79f80a7..658f6fc287 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -202,11 +202,13 @@ struct vhost_virtqueue {
 	struct iovec *vec_pool;
 
 	/* async data transfer status */
-	uintptr_t	**async_pkts_pending;
 	struct async_inflight_info *async_pkts_info;
 	uint16_t	async_pkts_idx;
 	uint16_t	async_pkts_inflight_n;
 	uint16_t	async_last_pkts_n;
+	struct vring_used_elem  *async_descs_split;
+	uint16_t async_desc_idx;
+	uint16_t last_async_desc_idx;
 
 	/* vq async features */
 	bool		async_inorder;
@@ -563,38 +565,6 @@ static __rte_always_inline int guest_page_addrcmp(const void *p1,
 	return 0;
 }
 
-/* Convert guest physical address to host physical address */
-static __rte_always_inline rte_iova_t
-gpa_to_hpa(struct virtio_net *dev, uint64_t gpa, uint64_t size)
-{
-	uint32_t i;
-	struct guest_page *page;
-	struct guest_page key;
-
-	if (dev->nr_guest_pages >= VHOST_BINARY_SEARCH_THRESH) {
-		key.guest_phys_addr = gpa;
-		page = bsearch(&key, dev->guest_pages, dev->nr_guest_pages,
-			       sizeof(struct guest_page), guest_page_addrcmp);
-		if (page) {
-			if (gpa + size < page->guest_phys_addr + page->size)
-				return gpa - page->guest_phys_addr +
-					page->host_phys_addr;
-		}
-	} else {
-		for (i = 0; i < dev->nr_guest_pages; i++) {
-			page = &dev->guest_pages[i];
-
-			if (gpa >= page->guest_phys_addr &&
-			    gpa + size < page->guest_phys_addr +
-			    page->size)
-				return gpa - page->guest_phys_addr +
-				       page->host_phys_addr;
-		}
-	}
-
-	return 0;
-}
-
 static __rte_always_inline rte_iova_t
 gpa_to_first_hpa(struct virtio_net *dev, uint64_t gpa,
 	uint64_t gpa_size, uint64_t *hpa_size)
@@ -645,6 +615,17 @@ gpa_to_first_hpa(struct virtio_net *dev, uint64_t gpa,
 	return 0;
 }
 
+/* Convert guest physical address to host physical address */
+static __rte_always_inline rte_iova_t
+gpa_to_hpa(struct virtio_net *dev, uint64_t gpa, uint64_t size)
+{
+	rte_iova_t hpa;
+	uint64_t hpa_size;
+
+	hpa = gpa_to_first_hpa(dev, gpa, size, &hpa_size);
+	return hpa_size == size ? hpa : 0;
+}
+
 static __rte_always_inline uint64_t
 hva_to_gpa(struct virtio_net *dev, uint64_t vva, uint64_t len)
 {
@@ -749,13 +730,12 @@ static __rte_always_inline void
 vhost_vring_call_split(struct virtio_net *dev, struct vhost_virtqueue *vq)
 {
 	/* Flush used->idx update before we read avail->flags. */
-	rte_smp_mb();
+	rte_atomic_thread_fence(__ATOMIC_SEQ_CST);
 
 	/* Don't kick guest if we don't reach index specified by guest. */
 	if (dev->features & (1ULL << VIRTIO_RING_F_EVENT_IDX)) {
 		uint16_t old = vq->signalled_used;
-		uint16_t new = vq->async_pkts_inflight_n ?
-					vq->used->idx:vq->last_used_idx;
+		uint16_t new = vq->last_used_idx;
 		bool signalled_used_valid = vq->signalled_used_valid;
 
 		vq->signalled_used = new;
@@ -791,7 +771,7 @@ vhost_vring_call_packed(struct virtio_net *dev, struct vhost_virtqueue *vq)
 	bool signalled_used_valid, kick = false;
 
 	/* Flush used desc update. */
-	rte_smp_mb();
+	rte_atomic_thread_fence(__ATOMIC_SEQ_CST);
 
 	if (!(dev->features & (1ULL << VIRTIO_RING_F_EVENT_IDX))) {
 		if (vq->driver_event->flags !=
@@ -817,7 +797,7 @@ vhost_vring_call_packed(struct virtio_net *dev, struct vhost_virtqueue *vq)
 		goto kick;
 	}
 
-	rte_smp_rmb();
+	rte_atomic_thread_fence(__ATOMIC_ACQUIRE);
 
 	off_wrap = vq->driver_event->off_wrap;
 	off = off_wrap & ~(1 << 15);