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qcacmn: Add event history logs for datapath

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Add support to log the important events in
datapath, which will help in debugging the
datapath issues.

IRQ handler, Napi poll and srng access start/end
are the events which are currently logged.

CRs-Fixed: 2457854
Change-Id: Iba105b0e79443b670a01a929f999f94e00ea92f2
This commit is contained in:
Rakesh Pillai
2019-05-31 20:28:30 +05:30
committed by nshrivas
parent a833f30506
commit 2529ae1c8a
13 changed files with 362 additions and 66 deletions
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108
hif/inc/hif.h
View File

@@ -317,6 +317,114 @@ struct hif_target_info {
struct hif_opaque_softc {
};
/**
* enum hif_event_type - Type of DP events to be recorded
* @HIF_EVENT_IRQ_TRIGGER: IRQ trigger event
* @HIF_EVENT_BH_SCHED: NAPI POLL scheduled event
* @HIF_EVENT_SRNG_ACCESS_START: hal ring access start event
* @HIF_EVENT_SRNG_ACCESS_END: hal ring access end event
*/
enum hif_event_type {
HIF_EVENT_IRQ_TRIGGER,
HIF_EVENT_BH_SCHED,
HIF_EVENT_SRNG_ACCESS_START,
HIF_EVENT_SRNG_ACCESS_END,
};
#ifdef WLAN_FEATURE_DP_EVENT_HISTORY
/* HIF_EVENT_HIST_MAX should always be power of 2 */
#define HIF_EVENT_HIST_MAX 512
#define HIF_NUM_INT_CONTEXTS 7
#define HIF_EVENT_HIST_DISABLE_MASK 0
/**
* struct hif_event_record - an entry of the DP event history
* @hal_ring_id: ring id for which event is recorded
* @hp: head pointer of the ring (may not be applicable for all events)
* @tp: tail pointer of the ring (may not be applicable for all events)
* @cpu_id: cpu id on which the event occurred
* @timestamp: timestamp when event occurred
* @type: type of the event
*
* This structure represents the information stored for every datapath
* event which is logged in the history.
*/
struct hif_event_record {
uint8_t hal_ring_id;
uint32_t hp;
uint32_t tp;
int cpu_id;
uint64_t timestamp;
enum hif_event_type type;
};
/**
* struct hif_event_history - history for one interrupt group
* @index: index to store new event
* @event: event entry
*
* This structure represents the datapath history for one
* interrupt group.
*/
struct hif_event_history {
qdf_atomic_t index;
struct hif_event_record event[HIF_EVENT_HIST_MAX];
};
/**
* hif_hist_record_event() - Record one datapath event in history
* @hif_ctx: HIF opaque context
* @event: DP event entry
* @intr_grp_id: interrupt group ID registered with hif
*
* Return: None
*/
void hif_hist_record_event(struct hif_opaque_softc *hif_ctx,
struct hif_event_record *event,
uint8_t intr_grp_id);
/**
* hif_record_event() - Wrapper function to form and record DP event
* @hif_ctx: HIF opaque context
* @intr_grp_id: interrupt group ID registered with hif
* @hal_ring_id: ring id for which event is recorded
* @hp: head pointer index of the srng
* @tp: tail pointer index of the srng
* @type: type of the event to be logged in history
*
* Return: None
*/
static inline void hif_record_event(struct hif_opaque_softc *hif_ctx,
uint8_t intr_grp_id,
uint8_t hal_ring_id,
uint32_t hp,
uint32_t tp,
enum hif_event_type type)
{
struct hif_event_record event;
event.hal_ring_id = hal_ring_id;
event.hp = hp;
event.tp = tp;
event.type = type;
return hif_hist_record_event(hif_ctx, &event,
intr_grp_id);
}
#else
static inline void hif_record_event(struct hif_opaque_softc *hif_ctx,
uint8_t intr_grp_id,
uint8_t hal_ring_id,
uint32_t hp,
uint32_t tp,
enum hif_event_type type)
{
}
#endif /* WLAN_FEATURE_DP_EVENT_HISTORY */
/**
* enum HIF_DEVICE_POWER_CHANGE_TYPE: Device Power change type
*