libibverbs: Introduce struct ibv_buf for common buffer description Add struct ibv_buf with addr and size fields to provide a common abstraction for buffer metadata that providers can embed in their internal buffer structures. Introduce an init helper alongside. Signed-off-by: Jiri Pirko <jiri@nvidia.com>

diff --git a/libibverbs/driver.h b/libibverbs/driver.h
index e618772..45a0b1d 100644
--- a/libibverbs/driver.h
+++ b/libibverbs/driver.h

@@ -49,6 +49,21 @@
 
 struct verbs_device;
 
+/* Must change the PRIVATE IBVERBS_PRIVATE_ symbol if this is changed */
+struct ibv_buf {
+	void *addr;
+	size_t size;
+	struct ibv_pd *pd;
+};
+
+static inline void ibv_buf_init(struct ibv_buf *buf, struct ibv_pd *pd,
+				void *addr, size_t size)
+{
+	buf->pd = pd;
+	buf->addr = addr;
+	buf->size = size;
+}
+
 enum {
 	VERBS_LOG_LEVEL_NONE,
 	VERBS_LOG_ERR,

diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
index 36d120e..63a6faa 100644
--- a/libibverbs/verbs.h
+++ b/libibverbs/verbs.h

@@ -636,6 +636,8 @@
 	struct ibv_context *context;
 };
 
+struct ibv_buf;
+
 struct ibv_pd {
 	struct ibv_context     *context;
 	uint32_t		handle;