X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_vhost%2Frte_virtio_net.h;h=7d1fde202572736c71ca58ef160adf68eec02b2a;hb=dc81ebbacaeb;hp=9a32a95aed8de9a55d8a92b2570ff8ae48e6a042;hpb=e049ca6d10e0e458961b4d15b812ffe7f46aeb16;p=dpdk.git

diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h
index 9a32a95aed..7d1fde2025 100644
--- a/lib/librte_vhost/rte_virtio_net.h
+++ b/lib/librte_vhost/rte_virtio_net.h
@@ -40,6 +40,7 @@
  */
 
 #include <stdint.h>
+#include <linux/vhost.h>
 #include <linux/virtio_ring.h>
 #include <linux/virtio_net.h>
 #include <sys/eventfd.h>
@@ -48,6 +49,7 @@
 
 #include <rte_memory.h>
 #include <rte_mempool.h>
+#include <rte_ether.h>
 
 struct rte_mbuf;
 
@@ -89,9 +91,34 @@ struct vhost_virtqueue {
 	volatile uint16_t	last_used_idx_res;	/**< Used for multiple devices reserving buffers. */
 	int			callfd;			/**< Used to notify the guest (trigger interrupt). */
 	int			kickfd;			/**< Currently unused as polling mode is enabled. */
+	int			enabled;
+	uint64_t		log_guest_addr;		/**< Physical address of used ring, for logging */
+	uint64_t		reserved[15];		/**< Reserve some spaces for future extension. */
 	struct buf_vector	buf_vec[BUF_VECTOR_MAX];	/**< for scatter RX. */
 } __rte_cache_aligned;
 
+
+/*
+ * Make an extra wrapper for VIRTIO_NET_F_MQ and
+ * VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX as they are
+ * introduced since kernel v3.8. This makes our
+ * code buildable for older kernel.
+ */
+#ifdef VIRTIO_NET_F_MQ
+ #define VHOST_MAX_QUEUE_PAIRS	VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX
+ #define VHOST_SUPPORTS_MQ	(1ULL << VIRTIO_NET_F_MQ)
+#else
+ #define VHOST_MAX_QUEUE_PAIRS	1
+ #define VHOST_SUPPORTS_MQ	0
+#endif
+
+/*
+ * Define virtio 1.0 for older kernels
+ */
+#ifndef VIRTIO_F_VERSION_1
+ #define VIRTIO_F_VERSION_1 32
+#endif
+
 /**
  * Device structure contains all configuration information relating to the device.
  */
@@ -105,7 +132,12 @@ struct virtio_net {
 	char			ifname[IF_NAME_SZ];	/**< Name of the tap device or socket path. */
 	uint32_t		virt_qp_nb;	/**< number of queue pair we have allocated */
 	void			*priv;		/**< private context */
-	struct vhost_virtqueue	*virtqueue[VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX];	/**< Contains all virtqueue information. */
+	uint64_t		log_size;	/**< Size of log area */
+	uint64_t		log_base;	/**< Where dirty pages are logged */
+	struct ether_addr	mac;		/**< MAC address */
+	rte_atomic16_t		broadcast_rarp;	/**< A flag to tell if we need broadcast rarp packet */
+	uint64_t		reserved[61];	/**< Reserve some spaces for future extension. */
+	struct vhost_virtqueue	*virtqueue[VHOST_MAX_QUEUE_PAIRS * 2];	/**< Contains all virtqueue information. */
 } __rte_cache_aligned;
 
 /**
@@ -132,7 +164,7 @@ struct virtio_memory {
 };
 
 /**
- * Device operations to add/remove device.
+ * Device and vring operations.
  *
  * Make sure to set VIRTIO_DEV_RUNNING to the device flags in new_device and
  * remove it in destroy_device.
@@ -141,12 +173,18 @@ struct virtio_memory {
 struct virtio_net_device_ops {
 	int (*new_device)(struct virtio_net *);	/**< Add device. */
 	void (*destroy_device)(volatile struct virtio_net *);	/**< Remove device. */
+
+	int (*vring_state_changed)(struct virtio_net *dev, uint16_t queue_id, int enable);	/**< triggered when a vring is enabled or disabled */
 };
 
 static inline uint16_t __attribute__((always_inline))
 rte_vring_available_entries(struct virtio_net *dev, uint16_t queue_id)
 {
 	struct vhost_virtqueue *vq = dev->virtqueue[queue_id];
+
+	if (!vq->enabled)
+		return 0;
+
 	return *(volatile uint16_t *)&vq->avail->idx - vq->last_used_idx_res;
 }
 
@@ -172,6 +210,7 @@ gpa_to_vva(struct virtio_net *dev, uint64_t guest_pa)
 	return vhost_va;
 }
 
+
 /**
  *  Disable features in feature_mask. Returns 0 on success.
  */