qcacmn: Create a list of skbs to be freed at once

Create a list of skbs to be freed at once in dp tx completion path

Change-Id: I42129b4306206f7224ceabc87d07e2a87b8fcab6
CRs-Fixed: 3274945

qdf/linux/src/i_qdf_nbuf.h

@@ -2595,6 +2595,12 @@ void __qdf_nbuf_queue_head_purge(struct sk_buff_head *skb_queue_head)
 	return skb_queue_purge(skb_queue_head);
 }
 
+static inline
+int __qdf_nbuf_queue_empty(__qdf_nbuf_queue_head_t *nbuf_queue_head)
+{
+	return skb_queue_empty(nbuf_queue_head);
+}
+
 /**
  * __qdf_nbuf_queue_head_lock() - Acquire the skb list lock
  * @head: skb list for which lock is to be acquired
@@ -2905,6 +2911,33 @@ static inline void __qdf_nbuf_kfree(struct sk_buff *skb)
 	kfree_skb(skb);
 }
 
+/**
+ * __qdf_nbuf_dev_kfree_list() - Free nbuf list using dev based os call
+ * @skb_queue_head: Pointer to nbuf queue head
+ *
+ * This function is called to free the nbuf list on failure cases
+ *
+ * Return: None
+ */
+void
+__qdf_nbuf_dev_kfree_list(__qdf_nbuf_queue_head_t *nbuf_queue_head);
+
+/**
+ * __qdf_nbuf_dev_queue_head() - queue a buffer using dev at the list head
+ * @skb_queue_head: Pointer to skb list head
+ * @buff: Pointer to nbuf
+ *
+ * This function is called to queue buffer at the skb list head
+ *
+ * Return: None
+ */
+static inline void
+__qdf_nbuf_dev_queue_head(__qdf_nbuf_queue_head_t *nbuf_queue_head,
+			  __qdf_nbuf_t buff)
+{
+	 __skb_queue_head(nbuf_queue_head, buff);
+}
+
 /**
  * __qdf_nbuf_dev_kfree() - Free nbuf using dev based os call
  * @buf: Pointer to network buffer

qdf/linux/src/qdf_nbuf.c

@@ -746,6 +746,21 @@ __qdf_nbuf_t __qdf_nbuf_clone(__qdf_nbuf_t skb)
 
 qdf_export_symbol(__qdf_nbuf_clone);
 
+#ifdef QCA_DP_TX_NBUF_LIST_FREE
+void
+__qdf_nbuf_dev_kfree_list(__qdf_nbuf_queue_head_t *nbuf_queue_head)
+{
+	dev_kfree_skb_list_fast(nbuf_queue_head);
+}
+#else
+void
+__qdf_nbuf_dev_kfree_list(__qdf_nbuf_queue_head_t *nbuf_queue_head)
+{
+}
+#endif
+
+qdf_export_symbol(__qdf_nbuf_dev_kfree_list);
+
 #ifdef NBUF_MEMORY_DEBUG
 struct qdf_nbuf_event {
 	qdf_nbuf_t nbuf;
@@ -3892,6 +3907,23 @@ unshare_buf:
 
 qdf_export_symbol(qdf_nbuf_unshare_debug);
 
+void
+qdf_nbuf_dev_kfree_list_debug(__qdf_nbuf_queue_head_t *nbuf_queue_head,
+			      const char *func, uint32_t line)
+{
+	qdf_nbuf_t  buf;
+
+	if (qdf_nbuf_queue_empty(nbuf_queue_head))
+		return;
+
+	if (is_initial_mem_debug_disabled)
+		return __qdf_nbuf_dev_kfree_list(nbuf_queue_head);
+
+	while ((buf = qdf_nbuf_queue_head_dequeue(nbuf_queue_head)) != NULL)
+		qdf_nbuf_free_debug(buf, func, line);
+}
+
+qdf_export_symbol(qdf_nbuf_dev_kfree_list_debug);
 #endif /* NBUF_MEMORY_DEBUG */
 
 #if defined(FEATURE_TSO)