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Commit d5038639 authored by Kai Liu's avatar Kai Liu Committed by snandini
Browse files

qcacmn: Enhance hang info feature 

Add bus related info in hif layer in order to get bus status
when hang issue happened.

Change-Id: If922e0892e0f65de778b9696bbc56fc63c25c169
CRs-Fixed: 2801350
parent 66e8913b

hif/inc/hif.h

+19 −0
Original line number Diff line number Diff line
@@ -1470,4 +1470,23 @@ void hif_log_ce_info(struct hif_softc *scn, uint8_t *data, 
{

}

#endif



#ifdef HIF_BUS_LOG_INFO

/**

 * hif_log_bus_info() - API to log bus related info

 * @scn: hif handle

 * @data: hang event data buffer

 * @offset: offset at which data needs to be written

 *

 * Return:  None

 */

void hif_log_bus_info(struct hif_softc *scn, uint8_t *data,

		      unsigned int *offset);

#else

static inline

void hif_log_bus_info(struct hif_softc *scn, uint8_t *data,

		      unsigned int *offset)

{

}

#endif

#endif /* _HIF_H_ */

hif/src/ce/ce_main.c

+3 −0
Original line number Diff line number Diff line
@@ -4245,6 +4245,9 @@ void hif_log_ce_info(struct hif_softc *scn, uint8_t *data, 
	size = sizeof(info) -

		(CE_COUNT_MAX - info.ce_count) * sizeof(struct ce_index);



	if (*offset + size > QDF_WLAN_HANG_FW_OFFSET)

		return;



	QDF_HANG_EVT_SET_HDR(&info.tlv_header, HANG_EVT_TAG_CE_INFO,

			     size - QDF_HANG_EVENT_TLV_HDR_SIZE);

hif/src/hif_main.c

+3 −1
Original line number Diff line number Diff line
@@ -529,7 +529,7 @@ static void hif_cpuhp_unregister(struct hif_softc *scn) 
}

#endif /* ifdef HIF_CPU_PERF_AFFINE_MASK */



#ifdef HIF_CE_LOG_INFO

#if defined(HIF_CE_LOG_INFO) || defined(HIF_BUS_LOG_INFO)

/**

 * hif_recovery_notifier_cb - Recovery notifier callback to log

 *  hang event data
@@ -556,6 +556,8 @@ int hif_recovery_notifier_cb(struct notifier_block *block, unsigned long state, 
	if (!hif_handle)

		return -EINVAL;



	hif_log_bus_info(hif_handle, notif_data->hang_data,

			 &notif_data->offset);

	hif_log_ce_info(hif_handle, notif_data->hang_data,

			&notif_data->offset);

hif/src/pcie/if_pci.c

+28 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ 


#include "pci_api.h"

#include "ahb_api.h"

#include "qdf_hang_event_notifier.h"



/* Maximum ms timeout for host to wake up target */

#define PCIE_WAKE_TIMEOUT 1000
@@ -2698,6 +2699,33 @@ static int __hif_check_link_status(struct hif_softc *scn) 
	return -EACCES;

}



#ifdef HIF_BUS_LOG_INFO

void hif_log_bus_info(struct hif_softc *scn, uint8_t *data,

		      unsigned int *offset)

{

	struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(scn);

	struct hang_event_bus_info info = {0};

	size_t size;



	if (!sc) {

		hif_err("HIF Bus Context is Invalid");

		return;

	}



	pfrm_read_config_word(sc->pdev, PCI_DEVICE_ID, &info.dev_id);



	size = sizeof(info);

	QDF_HANG_EVT_SET_HDR(&info.tlv_header, HANG_EVT_TAG_BUS_INFO,

			     size - QDF_HANG_EVENT_TLV_HDR_SIZE);



	if (*offset + size > QDF_WLAN_HANG_FW_OFFSET)

		return;



	qdf_mem_copy(data + *offset, &info, size);

	*offset = *offset + size;

}

#endif



/**

 * hif_pci_bus_resume(): prepare hif for resume

 *

hif/src/pcie/if_pci.h

+5 −0
Original line number Diff line number Diff line
@@ -56,6 +56,11 @@ struct hif_tasklet_entry { 
	void *hif_handler; /* struct hif_pci_softc */

};



struct hang_event_bus_info {

	uint16_t tlv_header;

	uint16_t dev_id;

} qdf_packed;



/**

 * enum hif_pm_runtime_state - Driver States for Runtime Power Management

 * HIF_PM_RUNTIME_STATE_NONE: runtime pm is off