qcacmn: support multiple pages prealloc for descriptor

Support multiple pages prealloc for DP descriptor

Change-Id: I66d4cef3acf69acf4b6fc8e5a6d01c3d67921dca
CRs-Fixed: 2751338

dp/wifi3.0/dp_internal.h

@@ -2516,4 +2516,76 @@ QDF_STATUS dp_wds_ext_set_peer_rx(ol_txrx_soc_handle soc,
 				  ol_osif_peer_handle osif_peer);
 #endif /* QCA_SUPPORT_WDS_EXTENDED */
 
+#ifdef DP_MEM_PRE_ALLOC
+/**
+ * dp_desc_multi_pages_mem_alloc() - alloc memory over multiple pages
+ * @soc: datapath soc handle
+ * @desc_type: memory request source type
+ * @pages: multi page information storage
+ * @element_size: each element size
+ * @element_num: total number of elements should be allocated
+ * @memctxt: memory context
+ * @cacheable: coherent memory or cacheable memory
+ *
+ * This function is a wrapper for memory allocation over multiple
+ * pages, if dp prealloc method is registered, then will try prealloc
+ * firstly. if prealloc failed, fall back to regular way over
+ * qdf_mem_multi_pages_alloc().
+ *
+ * Return: None
+ */
+void dp_desc_multi_pages_mem_alloc(struct dp_soc *soc,
+				   enum dp_desc_type desc_type,
+				   struct qdf_mem_multi_page_t *pages,
+				   size_t element_size,
+				   uint16_t element_num,
+				   qdf_dma_context_t memctxt,
+				   bool cacheable);
+
+/**
+ * dp_desc_multi_pages_mem_free() - free multiple pages memory
+ * @soc: datapath soc handle
+ * @desc_type: memory request source type
+ * @pages: multi page information storage
+ * @memctxt: memory context
+ * @cacheable: coherent memory or cacheable memory
+ *
+ * This function is a wrapper for multiple pages memory free,
+ * if memory is got from prealloc pool, put it back to pool.
+ * otherwise free by qdf_mem_multi_pages_free().
+ *
+ * Return: None
+ */
+void dp_desc_multi_pages_mem_free(struct dp_soc *soc,
+				  enum dp_desc_type desc_type,
+				  struct qdf_mem_multi_page_t *pages,
+				  qdf_dma_context_t memctxt,
+				  bool cacheable);
+
+#else
+static inline
+void dp_desc_multi_pages_mem_alloc(struct dp_soc *soc,
+				   enum dp_desc_type desc_type,
+				   struct qdf_mem_multi_page_t *pages,
+				   size_t element_size,
+				   uint16_t element_num,
+				   qdf_dma_context_t memctxt,
+				   bool cacheable)
+{
+	qdf_mem_multi_pages_alloc(soc->osdev, pages, element_size,
+				  element_num, memctxt, cacheable);
+}
+
+static inline
+void dp_desc_multi_pages_mem_free(struct dp_soc *soc,
+				  enum dp_desc_type desc_type,
+				  struct qdf_mem_multi_page_t *pages,
+				  qdf_dma_context_t memctxt,
+				  bool cacheable)
+{
+	qdf_mem_multi_pages_free(soc->osdev, pages,
+				 memctxt, cacheable);
+}
+#endif
+
 #endif /* #ifndef _DP_INTERNAL_H_ */