qcacmn: Add support to log CE DST and STATUS ring events

1. Record hp/tp for ce dst and status ring to keep
   a track of the last reaped and posted buffers.
2. Add union ce_srng_desc to record ce srng descriptor
   information.

Change-Id: I6f4728893d629c60f676826bf806b725326fb83d
CRs-Fixed: 2465492

hal/wifi3.0/hal_api.h

@@ -880,6 +880,20 @@ static inline uint32_t hal_srng_src_done_val(void *hal_soc, void *hal_ring)
 			srng->u.src_ring.cached_tp) / srng->entry_size;
 }
 
+/**
+ * hal_get_entrysize_from_srng() - Retrieve ring entry size
+ * @hal_ring: Source ring pointer
+ *
+ * Return: uint8_t
+ */
+static inline
+uint8_t hal_get_entrysize_from_srng(void *hal_ring)
+{
+	struct hal_srng *srng = (struct hal_srng *)hal_ring;
+
+	return srng->entry_size;
+}
+
 /**
  * hal_get_sw_hptp - Get SW head and tail pointer location for any ring
  * @hal_soc: Opaque HAL SOC handle

hif/src/ce/ce_internal.h

@@ -379,6 +379,18 @@ union ce_desc {
 	struct CE_dest_desc dest_desc;
 };
 
+/**
+ * union ce_srng_desc - unified data type for ce srng descriptors
+ * @src_desc: ce srng Source ring descriptor
+ * @dest_desc: ce srng destination ring descriptor
+ * @dest_status_desc: ce srng status ring descriptor
+ */
+union ce_srng_desc {
+	struct ce_srng_src_desc src_desc;
+	struct ce_srng_dest_desc dest_desc;
+	struct ce_srng_dest_status_desc dest_status_desc;
+};
+
 /**
  * enum hif_ce_event_type - HIF copy engine event type
  * @HIF_RX_DESC_POST: event recorded before updating write index of RX ring.
@@ -408,6 +420,13 @@ union ce_desc {
  * @NAPI_POLL_ENTER: records the start of the napi poll function
  * @NAPI_COMPLETE: records when interrupts are reenabled
  * @NAPI_POLL_EXIT: records when the napi poll function returns
+ * @HIF_RX_NBUF_ALLOC_FAILURE: record the packet when nbuf fails to allocate
+ * @HIF_RX_NBUF_MAP_FAILURE: record the packet when dma map fails
+ * @HIF_RX_NBUF_ENQUEUE_FAILURE: record the packet when enqueue to ce fails
+ * @HIF_CE_SRC_RING_BUFFER_POST: record the packet when buffer is posted to ce src ring
+ * @HIF_CE_DEST_RING_BUFFER_POST: record the packet when buffer is posted to ce dst ring
+ * @HIF_CE_DEST_RING_BUFFER_REAP: record the packet when buffer is reaped from ce dst ring
+ * @HIF_CE_DEST_STATUS_RING_REAP: record the packet when status ring is reaped
  */
 enum hif_ce_event_type {
 	HIF_RX_DESC_POST,
@@ -437,6 +456,11 @@ enum hif_ce_event_type {
 	HIF_RX_NBUF_ALLOC_FAILURE = 0x20,
 	HIF_RX_NBUF_MAP_FAILURE,
 	HIF_RX_NBUF_ENQUEUE_FAILURE,
+
+	HIF_CE_SRC_RING_BUFFER_POST,
+	HIF_CE_DEST_RING_BUFFER_POST,
+	HIF_CE_DEST_RING_BUFFER_REAP,
+	HIF_CE_DEST_STATUS_RING_REAP,
 };
 
 void ce_init_ce_desc_event_log(struct hif_softc *scn, int ce_id, int size);
@@ -513,10 +537,6 @@ static inline void ce_t2h_msg_ce_cleanup(struct CE_handle *ce_hdl)
  */
 int hif_get_wake_ce_id(struct hif_softc *scn, uint8_t *ce_id);
 
-/*
- * Note: For MCL, #if defined (HIF_CONFIG_SLUB_DEBUG_ON) needs to be checked
- * for defined here
- */
 #if defined(HIF_CONFIG_SLUB_DEBUG_ON) || defined(HIF_CE_DEBUG_DATA_BUF)
 
 #ifndef HIF_CE_HISTORY_MAX
@@ -524,10 +544,13 @@ int hif_get_wake_ce_id(struct hif_softc *scn, uint8_t *ce_id);
 #endif
 
 #define CE_DEBUG_MAX_DATA_BUF_SIZE 64
+
 /**
  * struct hif_ce_desc_event - structure for detailing a ce event
  * @type: what the event was
  * @time: when it happened
+ * @current_hp: holds the current ring hp value
+ * @current_tp: holds the current ring tp value
  * @descriptor: descriptor enqueued or dequeued
  * @memory: virtual address that was used
  * @index: location of the descriptor in the ce ring;
@@ -535,19 +558,77 @@ int hif_get_wake_ce_id(struct hif_softc *scn, uint8_t *ce_id);
  * @actual_data_len: length of the data
  */
 struct hif_ce_desc_event {
-	uint16_t index;
+	int index;
 	enum hif_ce_event_type type;
 	uint64_t time;
+#ifdef HELIUMPLUS
 	union ce_desc descriptor;
+#else
+	uint32_t current_hp;
+	uint32_t current_tp;
+	union ce_srng_desc descriptor;
+#endif
 	void *memory;
 #ifdef HIF_CE_DEBUG_DATA_BUF
 	uint8_t *data;
 	size_t actual_data_len;
 #endif /* HIF_CE_DEBUG_DATA_BUF */
 };
+#else
+struct hif_ce_desc_event;
 #endif /*#if defined(HIF_CONFIG_SLUB_DEBUG_ON)||defined(HIF_CE_DEBUG_DATA_BUF)*/
+/**
+ * get_next_record_index() - get the next record index
+ * @table_index: atomic index variable to increment
+ * @array_size: array size of the circular buffer
+ *
+ * Increment the atomic index and reserve the value.
+ * Takes care of buffer wrap.
+ * Guaranteed to be thread safe as long as fewer than array_size contexts
+ * try to access the array.  If there are more than array_size contexts
+ * trying to access the array, full locking of the recording process would
+ * be needed to have sane logging.
+ */
+int get_next_record_index(qdf_atomic_t *table_index, int array_size);
+
+#if defined(HIF_CONFIG_SLUB_DEBUG_ON) || defined(HIF_CE_DEBUG_DATA_BUF)
+/**
+ * hif_record_ce_srng_desc_event() - Record data pointed by the CE descriptor
+ * @scn: structure detailing a ce event
+ * @ce_id: length of the data
+ * @type: event_type
+ * @descriptor: ce src/dest/status ring descriptor
+ * @memory: nbuf
+ * @index: current sw/write index
+ * @len: len of the buffer
+ * @hal_ring: ce hw ring
+ *
+ * Return: None
+ */
+void hif_record_ce_srng_desc_event(struct hif_softc *scn, int ce_id,
+				   enum hif_ce_event_type type,
+				   union ce_srng_desc *descriptor,
+				   void *memory, int index,
+				   int len, void *hal_ring);
+#else
+static inline
+void hif_record_ce_srng_desc_event(struct hif_softc *scn, int ce_id,
+				   enum hif_ce_event_type type,
+				   union ce_srng_desc *descriptor,
+				   void *memory, int index,
+				   int len, void *hal_ring)
+{
+}
+#endif
 
 #ifdef HIF_CE_DEBUG_DATA_BUF
+/**
+ * hif_ce_desc_data_record() - Record data pointed by the CE descriptor
+ * @event: structure detailing a ce event
+ * @len: length of the data
+ * Return:
+ */
+void hif_ce_desc_data_record(struct hif_ce_desc_event *event, int len);
 QDF_STATUS alloc_mem_ce_debug_hist_data(struct hif_softc *scn, uint32_t ce_id);
 void free_mem_ce_debug_hist_data(struct hif_softc *scn, uint32_t ce_id);
 #else
@@ -559,6 +640,11 @@ QDF_STATUS alloc_mem_ce_debug_hist_data(struct hif_softc *scn, uint32_t ce_id)
 
 static inline
 void free_mem_ce_debug_hist_data(struct hif_softc *scn, uint32_t ce_id) { }
+
+static inline
+void hif_ce_desc_data_record(struct hif_ce_desc_event *event, int len)
+{
+}
 #endif /*HIF_CE_DEBUG_DATA_BUF*/
 
 #ifdef HIF_CONFIG_SLUB_DEBUG_ON

hif/src/ce/ce_service.c

@@ -92,19 +92,7 @@ void hif_ce_war_enable(void)
 
 static const char *ce_event_type_to_str(enum hif_ce_event_type type);
 
-/**
- * get_next_record_index() - get the next record index
- * @table_index: atomic index variable to increment
- * @array_size: array size of the circular buffer
- *
- * Increment the atomic index and reserve the value.
- * Takes care of buffer wrap.
- * Guaranteed to be thread safe as long as fewer than array_size contexts
- * try to access the array.  If there are more than array_size contexts
- * trying to access the array, full locking of the recording process would
- * be needed to have sane logging.
- */
-static int get_next_record_index(qdf_atomic_t *table_index, int array_size)
+int get_next_record_index(qdf_atomic_t *table_index, int array_size)
 {
 	int record_index = qdf_atomic_inc_return(table_index);
 
@@ -113,17 +101,11 @@ static int get_next_record_index(qdf_atomic_t *table_index, int array_size)
 
 	while (record_index >= array_size)
 		record_index -= array_size;
+
 	return record_index;
 }
 
 #ifdef HIF_CE_DEBUG_DATA_BUF
-/**
- * hif_ce_desc_data_record() - Record data pointed by the CE descriptor
- * @event: structure detailing a ce event
- * @len: length of the data
- * Return:
- */
-static inline
 void hif_ce_desc_data_record(struct hif_ce_desc_event *event, int len)
 {
 	uint8_t *data = NULL;
@@ -146,12 +128,7 @@ void hif_ce_desc_data_record(struct hif_ce_desc_event *event, int len)
 		event->actual_data_len = len;
 	}
 }
-#else
-static inline
-void hif_ce_desc_data_record(struct hif_ce_desc_event *event, int len)
-{
-}
-#endif /* HIF_CE_DEBUG_DATA_BUF */
+#endif
 
 /**
  * hif_record_ce_desc_event() - record ce descriptor events
@@ -193,14 +170,14 @@ void hif_record_ce_desc_event(struct hif_softc *scn, int ce_id,
 
 	event = &hist_ev[record_index];
 
+	qdf_mem_zero(event, sizeof(struct hif_ce_desc_event));
+
 	event->type = type;
 	event->time = qdf_get_log_timestamp();
 
-	if (descriptor) {
-		qdf_mem_copy(&event->descriptor, descriptor, sizeof(union ce_desc));
-	} else {
-		qdf_mem_zero(&event->descriptor, sizeof(union ce_desc));
-	}
+	if (descriptor)
+		qdf_mem_copy(&event->descriptor, descriptor,
+			     sizeof(union ce_desc));
 
 	event->memory = memory;
 	event->index = index;

hif/src/ce/ce_service_legacy.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2019 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -748,9 +748,11 @@ ce_recv_buf_enqueue_legacy(struct CE_handle *copyeng,
 		dest_ring->per_transfer_context[write_index] =
 			per_recv_context;
 
-		hif_record_ce_desc_event(scn, CE_state->id, HIF_RX_DESC_POST,
-				(union ce_desc *)dest_desc, per_recv_context,
-				write_index, 0);
+		hif_record_ce_desc_event(scn, CE_state->id,
+					 HIF_RX_DESC_POST,
+					 (union ce_desc *)dest_desc,
+					 per_recv_context,
+					 write_index, 0);
 
 		/* Update Destination Ring Write Index */
 		write_index = CE_RING_IDX_INCR(nentries_mask, write_index);

hif/src/ce/ce_service_srng.c

@@ -15,8 +15,6 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-
-#include "hif.h"
 #include "hif_io32.h"
 #include "reg_struct.h"
 #include "ce_api.h"
@@ -30,6 +28,7 @@
 #include "hal_api.h"
 #include "pld_common.h"
 #include "qdf_module.h"
+#include "hif.h"
 
 /*
  * Support for Copy Engine hardware, which is mainly used for
@@ -78,6 +77,58 @@
 			(uint32_t)(((dma_addr) >> 32) & 0xFF);\
 	} while (0)
 
+#if defined(HIF_CONFIG_SLUB_DEBUG_ON) || defined(HIF_CE_DEBUG_DATA_BUF)
+void hif_record_ce_srng_desc_event(struct hif_softc *scn, int ce_id,
+				   enum hif_ce_event_type type,
+				   union ce_srng_desc *descriptor,
+				   void *memory, int index,
+				   int len, void *hal_ring)
+{
+	int record_index;
+	struct hif_ce_desc_event *event;
+	struct ce_desc_hist *ce_hist = &scn->hif_ce_desc_hist;
+	struct hif_ce_desc_event *hist_ev = NULL;
+
+	if (ce_id < CE_COUNT_MAX)
+		hist_ev = (struct hif_ce_desc_event *)ce_hist->hist_ev[ce_id];
+	else
+		return;
+
+	if (ce_id >= CE_COUNT_MAX)
+		return;
+
+	if (!ce_hist->enable[ce_id])
+		return;
+
+	if (!hist_ev)
+		return;
+
+	record_index = get_next_record_index(
+			&ce_hist->history_index[ce_id], HIF_CE_HISTORY_MAX);
+
+	event = &hist_ev[record_index];
+
+	qdf_mem_zero(event, sizeof(struct hif_ce_desc_event));
+
+	event->type = type;
+	event->time = qdf_get_log_timestamp();
+
+	if (descriptor)
+		qdf_mem_copy(&event->descriptor, descriptor,
+			     hal_get_entrysize_from_srng(hal_ring));
+
+	if (hal_ring)
+		hal_get_sw_hptp(scn->hal_soc, hal_ring, &event->current_tp,
+				&event->current_hp);
+
+	event->memory = memory;
+	event->index = index;
+
+	if (ce_hist->data_enable[ce_id])
+		hif_ce_desc_data_record(event, len);
+}
+#endif
+
 static int
 ce_send_nolock_srng(struct CE_handle *copyeng,
 			   void *per_transfer_context,
@@ -104,7 +155,7 @@ ce_send_nolock_srng(struct CE_handle *copyeng,
 		return QDF_STATUS_E_FAILURE;
 	}
 	{
-		enum hif_ce_event_type event_type = HIF_TX_GATHER_DESC_POST;
+		enum hif_ce_event_type event_type = HIF_CE_SRC_RING_BUFFER_POST;
 		struct ce_srng_src_desc *src_desc;
 
 		if (hal_srng_access_start(scn->hal_soc, src_ring->srng_ctx)) {
@@ -148,9 +199,11 @@ ce_send_nolock_srng(struct CE_handle *copyeng,
 		/* src_ring->write index hasn't been updated event though
 		 * the register has allready been written to.
 		 */
-		hif_record_ce_desc_event(scn, CE_state->id, event_type,
-			(union ce_desc *) src_desc, per_transfer_context,
-			src_ring->write_index, nbytes);
+		hif_record_ce_srng_desc_event(scn, CE_state->id, event_type,
+					      (union ce_srng_desc *)src_desc,
+					      per_transfer_context,
+					      src_ring->write_index, nbytes,
+					      src_ring->srng_ctx);
 
 		src_ring->write_index = write_index;
 		status = QDF_STATUS_SUCCESS;
@@ -252,6 +305,7 @@ ce_recv_buf_enqueue_srng(struct CE_handle *copyeng,
 	unsigned int sw_index;
 	uint64_t dma_addr = buffer;
 	struct hif_softc *scn = CE_state->scn;
+	struct ce_srng_dest_desc *dest_desc;
 
 	qdf_spin_lock_bh(&CE_state->ce_index_lock);
 	write_index = dest_ring->write_index;
@@ -269,9 +323,8 @@ ce_recv_buf_enqueue_srng(struct CE_handle *copyeng,
 
 	if ((hal_srng_src_num_avail(scn->hal_soc,
 					dest_ring->srng_ctx, false) > 0)) {
-		struct ce_srng_dest_desc *dest_desc =
-				hal_srng_src_get_next(scn->hal_soc,
-							dest_ring->srng_ctx);
+		dest_desc = hal_srng_src_get_next(scn->hal_soc,
+						  dest_ring->srng_ctx);
 
 		if (!dest_desc) {
 			status = QDF_STATUS_E_FAILURE;
@@ -292,6 +345,13 @@ ce_recv_buf_enqueue_srng(struct CE_handle *copyeng,
 
 	dest_ring->write_index = write_index;
 	hal_srng_access_end(scn->hal_soc, dest_ring->srng_ctx);
+	hif_record_ce_srng_desc_event(scn, CE_state->id,
+				      HIF_CE_DEST_RING_BUFFER_POST,
+				      (union ce_srng_desc *)dest_desc,
+				      per_recv_context,
+				      dest_ring->write_index, 0,
+				      dest_ring->srng_ctx);
+
 	Q_TARGET_ACCESS_END(scn);
 	qdf_spin_unlock_bh(&CE_state->ce_index_lock);
 	return status;
@@ -412,6 +472,23 @@ ce_completed_recv_next_nolock_srng(struct CE_state *CE_state,
 done:
 	hal_srng_access_end(scn->hal_soc, status_ring->srng_ctx);
 
+	if (status == QDF_STATUS_SUCCESS) {
+		hif_record_ce_srng_desc_event(scn, CE_state->id,
+					      HIF_CE_DEST_RING_BUFFER_REAP,
+					      NULL,
+					      dest_ring->
+					      per_transfer_context[sw_index],
+					      dest_ring->sw_index, nbytes,
+					      dest_ring->srng_ctx);
+
+		hif_record_ce_srng_desc_event(scn, CE_state->id,
+					      HIF_CE_DEST_STATUS_RING_REAP,
+					      (union ce_srng_desc *)dest_status,
+					      NULL,
+					      -1, 0,
+					      status_ring->srng_ctx);
+	}
+
 	return status;
 }
 
@@ -482,11 +559,13 @@ ce_completed_send_next_nolock_srng(struct CE_state *CE_state,
 
 	src_desc = hal_srng_src_reap_next(scn->hal_soc, src_ring->srng_ctx);
 	if (src_desc) {
-		hif_record_ce_desc_event(scn, CE_state->id,
-					HIF_TX_DESC_COMPLETION,
-					(union ce_desc *)src_desc,
-					src_ring->per_transfer_context[swi],
-					swi, src_desc->nbytes);
+		hif_record_ce_srng_desc_event(scn, CE_state->id,
+					      HIF_TX_DESC_COMPLETION,
+					      (union ce_srng_desc *)src_desc,
+					      src_ring->
+					      per_transfer_context[swi],
+					      swi, src_desc->nbytes,
+					      src_ring->srng_ctx);
 
 		/* Return data from completed source descriptor */
 		*bufferp = (qdf_dma_addr_t)

hif/src/ce/ce_tasklet.c

@@ -154,7 +154,7 @@ static void ce_tasklet(unsigned long data)
 	struct CE_state *CE_state = scn->ce_id_to_state[tasklet_entry->ce_id];
 
 	hif_record_ce_desc_event(scn, tasklet_entry->ce_id,
-			HIF_CE_TASKLET_ENTRY, NULL, NULL, 0, 0);
+			HIF_CE_TASKLET_ENTRY, NULL, NULL, -1, 0);
 
 	if (qdf_atomic_read(&scn->link_suspended)) {
 		HIF_ERROR("%s: ce %d tasklet fired after link suspend.",
@@ -171,7 +171,7 @@ static void ce_tasklet(unsigned long data)
 		 * any of the Copy Engine pipes.
 		 */
 		hif_record_ce_desc_event(scn, tasklet_entry->ce_id,
-				HIF_CE_TASKLET_RESCHEDULE, NULL, NULL, 0, 0);
+				HIF_CE_TASKLET_RESCHEDULE, NULL, NULL, -1, 0);
 
 		ce_schedule_tasklet(tasklet_entry);
 		return;
@@ -181,7 +181,7 @@ static void ce_tasklet(unsigned long data)
 		hif_irq_enable(scn, tasklet_entry->ce_id);
 
 	hif_record_ce_desc_event(scn, tasklet_entry->ce_id, HIF_CE_TASKLET_EXIT,
-				 NULL, NULL, 0, 0);
+				NULL, NULL, -1, 0);
 
 	qdf_atomic_dec(&scn->active_tasklet_cnt);
 }