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author | Hannes Reinecke <hare@suse.de> | 2021-12-21 08:20:32 +0100 |
---|---|---|
committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-01-05 19:33:01 +0900 |
commit | 7fad6ad6a357c73f0bdf55476238ae2884de78a3 (patch) | |
tree | 163b0137b38e18045718a8723e491a47bfa63f7e | |
parent | c206a389c97c9533971cd05eed69b49f535cc193 (diff) | |
download | linux-7fad6ad6a357c73f0bdf55476238ae2884de78a3.tar.gz linux-7fad6ad6a357c73f0bdf55476238ae2884de78a3.tar.bz2 linux-7fad6ad6a357c73f0bdf55476238ae2884de78a3.zip |
ata: libata-sff: tracepoints for HSM state machine
Add tracepoints for the HSM state machine and drop DPRINTK calls
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
-rw-r--r-- | drivers/ata/libata-sff.c | 20 | ||||
-rw-r--r-- | drivers/ata/libata-trace.c | 29 | ||||
-rw-r--r-- | include/trace/events/libata.h | 125 |
3 files changed, 161 insertions, 13 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 76bd87691978..b544bdc6d0a3 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -668,7 +668,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc) page = nth_page(page, (offset >> PAGE_SHIFT)); offset %= PAGE_SIZE; - DPRINTK("data %s\n", qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read"); + trace_ata_sff_pio_transfer_data(qc, offset, qc->sect_size); /* * Split the transfer when it splits a page boundary. Note that the @@ -738,7 +738,7 @@ static void ata_pio_sectors(struct ata_queued_cmd *qc) static void atapi_send_cdb(struct ata_port *ap, struct ata_queued_cmd *qc) { /* send SCSI cdb */ - DPRINTK("send cdb\n"); + trace_atapi_send_cdb(qc, 0, qc->dev->cdb_len); WARN_ON_ONCE(qc->dev->cdb_len < 12); ap->ops->sff_data_xfer(qc, qc->cdb, qc->dev->cdb_len, 1); @@ -809,7 +809,7 @@ next_sg: /* don't cross page boundaries */ count = min(count, (unsigned int)PAGE_SIZE - offset); - DPRINTK("data %s\n", qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read"); + trace_atapi_pio_transfer_data(qc, offset, count); /* do the actual data transfer */ buf = kmap_atomic(page); @@ -991,8 +991,7 @@ int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, WARN_ON_ONCE(in_wq != ata_hsm_ok_in_wq(ap, qc)); fsm_start: - DPRINTK("ata%u: protocol %d task_state %d (dev_stat 0x%X)\n", - ap->print_id, qc->tf.protocol, ap->hsm_task_state, status); + trace_ata_sff_hsm_state(qc, status); switch (ap->hsm_task_state) { case HSM_ST_FIRST: @@ -1193,8 +1192,7 @@ fsm_start: } /* no more data to transfer */ - DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n", - ap->print_id, qc->dev->devno, status); + trace_ata_sff_hsm_command_complete(qc, status); WARN_ON_ONCE(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM)); @@ -1251,7 +1249,7 @@ EXPORT_SYMBOL_GPL(ata_sff_queue_pio_task); void ata_sff_flush_pio_task(struct ata_port *ap) { - DPRINTK("ENTER\n"); + trace_ata_sff_flush_pio_task(ap); cancel_delayed_work_sync(&ap->sff_pio_task); @@ -1268,9 +1266,6 @@ void ata_sff_flush_pio_task(struct ata_port *ap) spin_unlock_irq(ap->lock); ap->sff_pio_task_link = NULL; - - if (ata_msg_ctl(ap)) - ata_port_dbg(ap, "%s: EXIT\n", __func__); } static void ata_sff_pio_task(struct work_struct *work) @@ -1467,8 +1462,7 @@ static unsigned int __ata_sff_port_intr(struct ata_port *ap, { u8 status; - VPRINTK("ata%u: protocol %d task_state %d\n", - ap->print_id, qc->tf.protocol, ap->hsm_task_state); + trace_ata_sff_port_intr(qc, hsmv_on_idle); /* Check whether we are expecting interrupt in this state */ switch (ap->hsm_task_state) { diff --git a/drivers/ata/libata-trace.c b/drivers/ata/libata-trace.c index 8a929e4414dc..e0e4d0d5a100 100644 --- a/drivers/ata/libata-trace.c +++ b/drivers/ata/libata-trace.c @@ -156,6 +156,35 @@ libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags) } 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) { diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h index acb9a4fc18ed..fcb8fde39614 100644 --- a/include/trace/events/libata.h +++ b/include/trace/events/libata.h @@ -148,6 +148,15 @@ ata_class_name(ATA_DEV_ZAC_UNSUP), \ ata_class_name(ATA_DEV_NONE)) +#define ata_sff_hsm_state_name(state) { state, #state } +#define show_sff_hsm_state_name(val) \ + __print_symbolic(val, \ + ata_sff_hsm_state_name(HSM_ST_IDLE), \ + ata_sff_hsm_state_name(HSM_ST_FIRST), \ + ata_sff_hsm_state_name(HSM_ST), \ + ata_sff_hsm_state_name(HSM_ST_LAST), \ + ata_sff_hsm_state_name(HSM_ST_ERR)) + const char *libata_trace_parse_status(struct trace_seq*, unsigned char); #define __parse_status(s) libata_trace_parse_status(p, s) @@ -163,6 +172,9 @@ const char *libata_trace_parse_eh_err_mask(struct trace_seq *, unsigned int); const char *libata_trace_parse_qc_flags(struct trace_seq *, unsigned int); #define __parse_qc_flags(f) libata_trace_parse_qc_flags(p, f) +const char *libata_trace_parse_tf_flags(struct trace_seq *, unsigned int); +#define __parse_tf_flags(f) libata_trace_parse_tf_flags(p, f) + const char *libata_trace_parse_subcmd(struct trace_seq *, unsigned char, unsigned char, unsigned char); #define __parse_subcmd(c,f,h) libata_trace_parse_subcmd(p, c, f, h) @@ -558,6 +570,119 @@ DEFINE_EVENT(ata_link_reset_end_template, ata_slave_postreset, TP_PROTO(struct ata_link *link, unsigned int *class, int rc), TP_ARGS(link, class, rc)); +DECLARE_EVENT_CLASS(ata_sff_hsm_template, + + TP_PROTO(struct ata_queued_cmd *qc, unsigned char status), + + TP_ARGS(qc, status), + + TP_STRUCT__entry( + __field( unsigned int, ata_port ) + __field( unsigned int, ata_dev ) + __field( unsigned int, tag ) + __field( unsigned int, qc_flags ) + __field( unsigned int, protocol ) + __field( unsigned int, hsm_state ) + __field( unsigned char, dev_state ) + ), + + TP_fast_assign( + __entry->ata_port = qc->ap->print_id; + __entry->ata_dev = qc->dev->link->pmp + qc->dev->devno; + __entry->tag = qc->tag; + __entry->qc_flags = qc->flags; + __entry->protocol = qc->tf.protocol; + __entry->hsm_state = qc->ap->hsm_task_state; + __entry->dev_state = status; + ), + + TP_printk("ata_port=%u ata_dev=%u tag=%d proto=%s flags=%s task_state=%s dev_stat=0x%X", + __entry->ata_port, __entry->ata_dev, __entry->tag, + show_protocol_name(__entry->protocol), + __parse_qc_flags(__entry->qc_flags), + show_sff_hsm_state_name(__entry->hsm_state), + __entry->dev_state) +); + +DEFINE_EVENT(ata_sff_hsm_template, ata_sff_hsm_state, + TP_PROTO(struct ata_queued_cmd *qc, unsigned char state), + TP_ARGS(qc, state)); + +DEFINE_EVENT(ata_sff_hsm_template, ata_sff_hsm_command_complete, + TP_PROTO(struct ata_queued_cmd *qc, unsigned char state), + TP_ARGS(qc, state)); + +DEFINE_EVENT(ata_sff_hsm_template, ata_sff_port_intr, + TP_PROTO(struct ata_queued_cmd *qc, unsigned char state), + TP_ARGS(qc, state)); + +DECLARE_EVENT_CLASS(ata_transfer_data_template, + + TP_PROTO(struct ata_queued_cmd *qc, unsigned int offset, unsigned int count), + + TP_ARGS(qc, offset, count), + + TP_STRUCT__entry( + __field( unsigned int, ata_port ) + __field( unsigned int, ata_dev ) + __field( unsigned int, tag ) + __field( unsigned int, flags ) + __field( unsigned int, offset ) + __field( unsigned int, bytes ) + ), + + TP_fast_assign( + __entry->ata_port = qc->ap->print_id; + __entry->ata_dev = qc->dev->link->pmp + qc->dev->devno; + __entry->tag = qc->tag; + __entry->flags = qc->tf.flags; + __entry->offset = offset; + __entry->bytes = count; + ), + + TP_printk("ata_port=%u ata_dev=%u tag=%d flags=%s offset=%u bytes=%u", + __entry->ata_port, __entry->ata_dev, __entry->tag, + __parse_tf_flags(__entry->flags), + __entry->offset, __entry->bytes) +); + +DEFINE_EVENT(ata_transfer_data_template, ata_sff_pio_transfer_data, + TP_PROTO(struct ata_queued_cmd *qc, unsigned int offset, unsigned int count), + TP_ARGS(qc, offset, count)); + +DEFINE_EVENT(ata_transfer_data_template, atapi_pio_transfer_data, + TP_PROTO(struct ata_queued_cmd *qc, unsigned int offset, unsigned int count), + TP_ARGS(qc, offset, count)); + +DEFINE_EVENT(ata_transfer_data_template, atapi_send_cdb, + TP_PROTO(struct ata_queued_cmd *qc, unsigned int offset, unsigned int count), + TP_ARGS(qc, offset, count)); + +DECLARE_EVENT_CLASS(ata_sff_template, + + TP_PROTO(struct ata_port *ap), + + TP_ARGS(ap), + + TP_STRUCT__entry( + __field( unsigned int, ata_port ) + __field( unsigned char, hsm_state ) + ), + + TP_fast_assign( + __entry->ata_port = ap->print_id; + __entry->hsm_state = ap->hsm_task_state; + ), + + TP_printk("ata_port=%u task_state=%s", + __entry->ata_port, + show_sff_hsm_state_name(__entry->hsm_state)) +); + +DEFINE_EVENT(ata_sff_template, ata_sff_flush_pio_task, + TP_PROTO(struct ata_port *ap), + TP_ARGS(ap)); + #endif /* _TRACE_LIBATA_H */ /* This part must be outside protection */ |