qcacmn: Use page_frag_cache to avoid fragmentation

Use page_frag_cache to avoid memory fragmentation
in WKK RxMON

CRs-Fixed: 3234833
Change-Id: I2e42a41999694a91b0f3f9386a1ad0c691bf5caf

dp/wifi3.0/monitor/2.0/dp_mon_2.0.c

@@ -194,7 +194,8 @@ dp_mon_frag_alloc_and_map(struct dp_soc *dp_soc,
 {
 	QDF_STATUS ret = QDF_STATUS_E_FAILURE;
 
-	mon_desc->buf_addr = qdf_frag_alloc(mon_desc_pool->buf_size);
+	mon_desc->buf_addr = qdf_frag_alloc(&mon_desc_pool->pf_cache,
+					    mon_desc_pool->buf_size);
 
 	if (!mon_desc->buf_addr) {
 		dp_mon_err("Frag alloc failed");

dp/wifi3.0/monitor/2.0/dp_mon_2.0.h

@@ -117,6 +117,7 @@ union dp_mon_desc_list_elem_t {
  * @owner: owner for nbuf
  * @buf_size: Buffer size
  * @buf_alignment: Buffer alignment
+ * @pf_cache: page frag cache
  */
 struct dp_mon_desc_pool {
 	uint32_t pool_size;
@@ -126,6 +127,7 @@ struct dp_mon_desc_pool {
 	uint8_t owner;
 	uint16_t buf_size;
 	uint8_t buf_alignment;
+	qdf_frag_cache_t pf_cache;
 };
 
 /**

dp/wifi3.0/monitor/2.0/dp_rx_mon_2.0.c

@@ -23,6 +23,8 @@
 #include "hal_be_api_mon.h"
 #include "dp_internal.h"
 #include "qdf_mem.h"   /* qdf_mem_malloc,free */
+#include <qdf_flex_mem.h>
+#include "qdf_nbuf_frag.h"
 #include "dp_mon.h"
 #include <dp_rx_mon.h>
 #include <dp_mon_2.0.h>
@@ -1508,6 +1510,8 @@ dp_rx_mon_buf_desc_pool_deinit(struct dp_soc *soc)
 	struct dp_mon_soc *mon_soc = soc->monitor_soc;
 	struct dp_mon_soc_be *mon_soc_be = dp_get_be_mon_soc_from_dp_mon_soc(mon_soc);
 
+	/* Drain page frag cachce before pool deinit */
+	qdf_frag_cache_drain(&mon_soc_be->rx_desc_mon.pf_cache);
 	dp_mon_desc_pool_deinit(&mon_soc_be->rx_desc_mon);
 }