diff options
Diffstat (limited to 'drivers/ata/libata-trace.c')
| -rw-r--r-- | drivers/ata/libata-trace.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/drivers/ata/libata-trace.c b/drivers/ata/libata-trace.c new file mode 100644 index 000000000..08e001303 --- /dev/null +++ b/drivers/ata/libata-trace.c @@ -0,0 +1,210 @@ +// 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_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_FAILED) + 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_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; +} |