// SPDX-License-Identifier: GPL-2.0-or-later/* * libata-trace.c - trace functions for libata * * Copyright 2015 Hannes Reinecke * Copyright 2015 SUSE Linux GmbH */ #include <linux/kernel.h>#include <linux/trace_seq.h>#include <trace/events/libata.h> const char *libata_trace_parse_status(struct trace_seq *p, unsigned char status){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "{ ");	if (status & ATA_BUSY)		trace_seq_printf(p, "BUSY ");	if (status & ATA_DRDY)		trace_seq_printf(p, "DRDY ");	if (status & ATA_DF)		trace_seq_printf(p, "DF ");	if (status & ATA_DSC)		trace_seq_printf(p, "DSC ");	if (status & ATA_DRQ)		trace_seq_printf(p, "DRQ ");	if (status & ATA_CORR)		trace_seq_printf(p, "CORR ");	if (status & ATA_SENSE)		trace_seq_printf(p, "SENSE ");	if (status & ATA_ERR)		trace_seq_printf(p, "ERR ");	trace_seq_putc(p, '}');	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "{ ");	if (host_stat & ATA_DMA_INTR)		trace_seq_printf(p, "INTR ");	if (host_stat & ATA_DMA_ERR)		trace_seq_printf(p, "ERR ");	if (host_stat & ATA_DMA_ACTIVE)		trace_seq_printf(p, "ACTIVE ");	trace_seq_putc(p, '}');	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "%x", eh_action);	if (eh_action) {		trace_seq_printf(p, "{ ");		if (eh_action & ATA_EH_REVALIDATE)			trace_seq_printf(p, "REVALIDATE ");		if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))			trace_seq_printf(p, "RESET ");		else if (eh_action & ATA_EH_SOFTRESET)			trace_seq_printf(p, "SOFTRESET ");		else if (eh_action & ATA_EH_HARDRESET)			trace_seq_printf(p, "HARDRESET ");		if (eh_action & ATA_EH_ENABLE_LINK)			trace_seq_printf(p, "ENABLE_LINK ");		if (eh_action & ATA_EH_PARK)			trace_seq_printf(p, "PARK ");		trace_seq_putc(p, '}');	}	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "%x", eh_err_mask);	if (eh_err_mask) {		trace_seq_printf(p, "{ ");		if (eh_err_mask & AC_ERR_DEV)			trace_seq_printf(p, "DEV ");		if (eh_err_mask & AC_ERR_HSM)			trace_seq_printf(p, "HSM ");		if (eh_err_mask & AC_ERR_TIMEOUT)			trace_seq_printf(p, "TIMEOUT ");		if (eh_err_mask & AC_ERR_MEDIA)			trace_seq_printf(p, "MEDIA ");		if (eh_err_mask & AC_ERR_ATA_BUS)			trace_seq_printf(p, "ATA_BUS ");		if (eh_err_mask & AC_ERR_HOST_BUS)			trace_seq_printf(p, "HOST_BUS ");		if (eh_err_mask & AC_ERR_SYSTEM)			trace_seq_printf(p, "SYSTEM ");		if (eh_err_mask & AC_ERR_INVALID)			trace_seq_printf(p, "INVALID ");		if (eh_err_mask & AC_ERR_OTHER)			trace_seq_printf(p, "OTHER ");		if (eh_err_mask & AC_ERR_NODEV_HINT)			trace_seq_printf(p, "NODEV_HINT ");		if (eh_err_mask & AC_ERR_NCQ)			trace_seq_printf(p, "NCQ ");		trace_seq_putc(p, '}');	}	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "%x", qc_flags);	if (qc_flags) {		trace_seq_printf(p, "{ ");		if (qc_flags & ATA_QCFLAG_ACTIVE)			trace_seq_printf(p, "ACTIVE ");		if (qc_flags & ATA_QCFLAG_DMAMAP)			trace_seq_printf(p, "DMAMAP ");		if (qc_flags & ATA_QCFLAG_IO)			trace_seq_printf(p, "IO ");		if (qc_flags & ATA_QCFLAG_RESULT_TF)			trace_seq_printf(p, "RESULT_TF ");		if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)			trace_seq_printf(p, "CLEAR_EXCL ");		if (qc_flags & ATA_QCFLAG_QUIET)			trace_seq_printf(p, "QUIET ");		if (qc_flags & ATA_QCFLAG_RETRY)			trace_seq_printf(p, "RETRY ");		if (qc_flags & ATA_QCFLAG_EH)			trace_seq_printf(p, "FAILED ");		if (qc_flags & ATA_QCFLAG_SENSE_VALID)			trace_seq_printf(p, "SENSE_VALID ");		if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)			trace_seq_printf(p, "EH_SCHEDULED ");		trace_seq_putc(p, '}');	}	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_tf_flags(struct trace_seq *p, unsigned int tf_flags){	const char *ret = trace_seq_buffer_ptr(p); 	trace_seq_printf(p, "%x", tf_flags);	if (tf_flags) {		trace_seq_printf(p, "{ ");		if (tf_flags & ATA_TFLAG_LBA48)			trace_seq_printf(p, "LBA48 ");		if (tf_flags & ATA_TFLAG_ISADDR)			trace_seq_printf(p, "ISADDR ");		if (tf_flags & ATA_TFLAG_DEVICE)			trace_seq_printf(p, "DEV ");		if (tf_flags & ATA_TFLAG_WRITE)			trace_seq_printf(p, "WRITE ");		if (tf_flags & ATA_TFLAG_LBA)			trace_seq_printf(p, "LBA ");		if (tf_flags & ATA_TFLAG_FUA)			trace_seq_printf(p, "FUA ");		if (tf_flags & ATA_TFLAG_POLLING)			trace_seq_printf(p, "POLL ");		trace_seq_putc(p, '}');	}	trace_seq_putc(p, 0); 	return ret;} const char *libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,			  unsigned char feature, unsigned char hob_nsect){	const char *ret = trace_seq_buffer_ptr(p); 	switch (cmd) {	case ATA_CMD_FPDMA_RECV:		switch (hob_nsect & 0x5f) {		case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT:			trace_seq_printf(p, " READ_LOG_DMA_EXT");			break;		case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:			trace_seq_printf(p, " ZAC_MGMT_IN");			break;		}		break;	case ATA_CMD_FPDMA_SEND:		switch (hob_nsect & 0x5f) {		case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT:			trace_seq_printf(p, " WRITE_LOG_DMA_EXT");			break;		case ATA_SUBCMD_FPDMA_SEND_DSM:			trace_seq_printf(p, " DATASET_MANAGEMENT");			break;		}		break;	case ATA_CMD_NCQ_NON_DATA:		switch (feature) {		case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE:			trace_seq_printf(p, " ABORT_QUEUE");			break;		case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES:			trace_seq_printf(p, " SET_FEATURES");			break;		case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:			trace_seq_printf(p, " ZERO_EXT");			break;		case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:			trace_seq_printf(p, " ZAC_MGMT_OUT");			break;		}		break;	case ATA_CMD_ZAC_MGMT_IN:		switch (feature) {		case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:			trace_seq_printf(p, " REPORT_ZONES");			break;		}		break;	case ATA_CMD_ZAC_MGMT_OUT:		switch (feature) {		case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE:			trace_seq_printf(p, " CLOSE_ZONE");			break;		case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE:			trace_seq_printf(p, " FINISH_ZONE");			break;		case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE:			trace_seq_printf(p, " OPEN_ZONE");			break;		case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER:			trace_seq_printf(p, " RESET_WRITE_POINTER");			break;		}		break;	}	trace_seq_putc(p, 0); 	return ret;}