+
+static inline void *
+mlx5_os_devx_create_event_channel(void *ctx, int flags)
+{
+ return mlx5_glue->devx_create_event_channel(ctx, flags);
+}
+
+static inline void
+mlx5_os_devx_destroy_event_channel(void *eventc)
+{
+ mlx5_glue->devx_destroy_event_channel(eventc);
+}
+
+static inline int
+mlx5_os_devx_subscribe_devx_event(void *eventc,
+ void *obj,
+ uint16_t events_sz, uint16_t events_num[],
+ uint64_t cookie)
+{
+ return mlx5_glue->devx_subscribe_devx_event(eventc, obj, events_sz,
+ events_num, cookie);
+}
+
+/**
+ * Memory allocation optionally with alignment.
+ *
+ * @param[in] align
+ * Alignment size (may be zero)
+ * @param[in] size
+ * Size in bytes to allocate
+ *
+ * @return
+ * Valid pointer to allocated memory, NULL in case of failure
+ */
+static inline void *
+mlx5_os_malloc(size_t align, size_t size)
+{
+ void *buf;
+
+ if (posix_memalign(&buf, align, size))
+ return NULL;
+ return buf;
+}
+
+/**
+ * This API de-allocates a memory that originally could have been
+ * allocated aligned or non-aligned. In Linux it is a wrapper
+ * around free().
+ *
+ * @param[in] addr
+ * Pointer to address to free
+ *
+ */
+static inline void
+mlx5_os_free(void *addr)
+{
+ free(addr);
+}
+
+void
+mlx5_set_context_attr(struct rte_device *dev, struct ibv_context *ctx);
+
+/**
+ * This is used to query system_image_guid as describing in PRM.
+ *
+ * @param dev[in]
+ * Pointer to a device instance as PCIe id.
+ * @param guid[out]
+ * Pointer to the buffer to hold device guid.
+ * Guid is uint64_t and corresponding to 17 bytes string.
+ * @param len[in]
+ * Guid buffer length, 17 bytes at least.
+ *
+ * @return
+ * -1 if internal failure.
+ * 0 if OFED doesn't support.
+ * >0 if success.
+ */
+int
+mlx5_get_device_guid(const struct rte_pci_addr *dev, uint8_t *guid, size_t len);
+