X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fvirtio%2Fvirtio_user%2Fvirtio_user_dev.c;h=1c6b26f8d382c6a804a5db09c290504abc1bc2d8;hb=397b4b3c509574a55c58ae161f5a01cc8a4da56a;hp=e743695e45102b6904ea21bbdb78fd625bc6f5e0;hpb=35b2d13fd6fdcbd191f2a30d74648faeb1186c65;p=dpdk.git

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index e743695e45..1c6b26f8d3 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -125,7 +125,6 @@ is_vhost_user_by_type(const char *path)
 int
 virtio_user_start_device(struct virtio_user_dev *dev)
 {
-	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
 	uint64_t features;
 	int ret;
 
@@ -142,7 +141,7 @@ virtio_user_start_device(struct virtio_user_dev *dev)
 	 * replaced when we get proper supports from the
 	 * memory subsystem in the future.
 	 */
-	rte_rwlock_read_lock(&mcfg->memory_hotplug_lock);
+	rte_mcfg_mem_read_lock();
 	pthread_mutex_lock(&dev->mutex);
 
 	if (is_vhost_user_by_type(dev->path) && dev->vhostfd < 0)
@@ -180,12 +179,12 @@ virtio_user_start_device(struct virtio_user_dev *dev)
 
 	dev->started = true;
 	pthread_mutex_unlock(&dev->mutex);
-	rte_rwlock_read_unlock(&mcfg->memory_hotplug_lock);
+	rte_mcfg_mem_read_unlock();
 
 	return 0;
 error:
 	pthread_mutex_unlock(&dev->mutex);
-	rte_rwlock_read_unlock(&mcfg->memory_hotplug_lock);
+	rte_mcfg_mem_read_unlock();
 	/* TODO: free resource here or caller to check */
 	return -1;
 }
@@ -225,17 +224,13 @@ out:
 static inline void
 parse_mac(struct virtio_user_dev *dev, const char *mac)
 {
-	int i, r;
-	uint32_t tmp[RTE_ETHER_ADDR_LEN];
+	struct rte_ether_addr tmp;
 
 	if (!mac)
 		return;
 
-	r = sscanf(mac, "%x:%x:%x:%x:%x:%x", &tmp[0],
-			&tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
-	if (r == RTE_ETHER_ADDR_LEN) {
-		for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i)
-			dev->mac_addr[i] = (uint8_t)tmp[i];
+	if (rte_ether_unformat_addr(mac, &tmp) == 0) {
+		memcpy(dev->mac_addr, &tmp, RTE_ETHER_ADDR_LEN);
 		dev->mac_specified = 1;
 	} else {
 		/* ignore the wrong mac, use random mac */
@@ -320,9 +315,9 @@ virtio_user_fill_intr_handle(struct virtio_user_dev *dev)
 
 static void
 virtio_user_mem_event_cb(enum rte_mem_event type __rte_unused,
-						 const void *addr __rte_unused,
-						 size_t len __rte_unused,
-						 void *arg)
+			 const void *addr,
+			 size_t len __rte_unused,
+			 void *arg)
 {
 	struct virtio_user_dev *dev = arg;
 	struct rte_memseg_list *msl;
@@ -542,7 +537,8 @@ virtio_user_dev_uninit(struct virtio_user_dev *dev)
 		close(dev->kickfds[i]);
 	}
 
-	close(dev->vhostfd);
+	if (dev->vhostfd >= 0)
+		close(dev->vhostfd);
 
 	if (dev->is_server && dev->listenfd >= 0) {
 		close(dev->listenfd);
@@ -550,8 +546,11 @@ virtio_user_dev_uninit(struct virtio_user_dev *dev)
 	}
 
 	if (dev->vhostfds) {
-		for (i = 0; i < dev->max_queue_pairs; ++i)
+		for (i = 0; i < dev->max_queue_pairs; ++i) {
 			close(dev->vhostfds[i]);
+			if (dev->tapfds[i] >= 0)
+				close(dev->tapfds[i]);
+		}
 		free(dev->vhostfds);
 		free(dev->tapfds);
 	}
@@ -618,6 +617,10 @@ virtio_user_handle_ctrl_msg(struct virtio_user_dev *dev, struct vring *vring,
 
 		queues = *(uint16_t *)(uintptr_t)vring->desc[idx_data].addr;
 		status = virtio_user_handle_mq(dev, queues);
+	} else if (hdr->class == VIRTIO_NET_CTRL_RX  ||
+		   hdr->class == VIRTIO_NET_CTRL_MAC ||
+		   hdr->class == VIRTIO_NET_CTRL_VLAN) {
+		status = 0;
 	}
 
 	/* Update status */
@@ -629,7 +632,7 @@ virtio_user_handle_ctrl_msg(struct virtio_user_dev *dev, struct vring *vring,
 static inline int
 desc_is_avail(struct vring_packed_desc *desc, bool wrap_counter)
 {
-	uint16_t flags = desc->flags;
+	uint16_t flags = __atomic_load_n(&desc->flags, __ATOMIC_ACQUIRE);
 
 	return wrap_counter == !!(flags & VRING_PACKED_DESC_F_AVAIL) &&
 		wrap_counter != !!(flags & VRING_PACKED_DESC_F_USED);
@@ -669,6 +672,10 @@ virtio_user_handle_ctrl_msg_packed(struct virtio_user_dev *dev,
 		queues = *(uint16_t *)(uintptr_t)
 				vring->desc[idx_data].addr;
 		status = virtio_user_handle_mq(dev, queues);
+	} else if (hdr->class == VIRTIO_NET_CTRL_RX  ||
+		   hdr->class == VIRTIO_NET_CTRL_MAC ||
+		   hdr->class == VIRTIO_NET_CTRL_VLAN) {
+		status = 0;
 	}
 
 	/* Update status */
@@ -689,6 +696,10 @@ virtio_user_handle_cq_packed(struct virtio_user_dev *dev, uint16_t queue_idx)
 	struct vring_packed *vring = &dev->packed_vrings[queue_idx];
 	uint16_t n_descs, flags;
 
+	/* Perform a load-acquire barrier in desc_is_avail to
+	 * enforce the ordering between desc flags and desc
+	 * content.
+	 */
 	while (desc_is_avail(&vring->desc[vq->used_idx],
 			     vq->used_wrap_counter)) {
 
@@ -699,8 +710,8 @@ virtio_user_handle_cq_packed(struct virtio_user_dev *dev, uint16_t queue_idx)
 		if (vq->used_wrap_counter)
 			flags |= VRING_PACKED_DESC_F_AVAIL_USED;
 
-		rte_smp_wmb();
-		vring->desc[vq->used_idx].flags = flags;
+		__atomic_store_n(&vring->desc[vq->used_idx].flags, flags,
+				 __ATOMIC_RELEASE);
 
 		vq->used_idx += n_descs;
 		if (vq->used_idx >= dev->queue_size) {