diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/sd_trace.h | 84 | ||||
| -rw-r--r-- | drivers/scsi/sd_zbc.c | 6 |
2 files changed, 90 insertions, 0 deletions
diff --git a/drivers/scsi/sd_trace.h b/drivers/scsi/sd_trace.h new file mode 100644 index 000000000000..cba3c0b825ba --- /dev/null +++ b/drivers/scsi/sd_trace.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2022 Western Digital Corporation or its affiliates. + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM sd + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE sd_trace + +#if !defined(_SD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_host.h> +#include <linux/tracepoint.h> + +TRACE_EVENT(scsi_prepare_zone_append, + + TP_PROTO(struct scsi_cmnd *cmnd, sector_t lba, + unsigned int wp_offset), + + TP_ARGS(cmnd, lba, wp_offset), + + TP_STRUCT__entry( + __field( unsigned int, host_no ) + __field( unsigned int, channel ) + __field( unsigned int, id ) + __field( unsigned int, lun ) + __field( sector_t, lba ) + __field( unsigned int, wp_offset ) + ), + + TP_fast_assign( + __entry->host_no = cmnd->device->host->host_no; + __entry->channel = cmnd->device->channel; + __entry->id = cmnd->device->id; + __entry->lun = cmnd->device->lun; + __entry->lba = lba; + __entry->wp_offset = wp_offset; + ), + + TP_printk("host_no=%u, channel=%u id=%u lun=%u lba=%llu wp_offset=%u", + __entry->host_no, __entry->channel, __entry->id, + __entry->lun, __entry->lba, __entry->wp_offset) +); + +TRACE_EVENT(scsi_zone_wp_update, + + TP_PROTO(struct scsi_cmnd *cmnd, sector_t rq_sector, + unsigned int wp_offset, unsigned int good_bytes), + + TP_ARGS(cmnd, rq_sector, wp_offset, good_bytes), + + TP_STRUCT__entry( + __field( unsigned int, host_no ) + __field( unsigned int, channel ) + __field( unsigned int, id ) + __field( unsigned int, lun ) + __field( sector_t, rq_sector ) + __field( unsigned int, wp_offset ) + __field( unsigned int, good_bytes ) + ), + + TP_fast_assign( + __entry->host_no = cmnd->device->host->host_no; + __entry->channel = cmnd->device->channel; + __entry->id = cmnd->device->id; + __entry->lun = cmnd->device->lun; + __entry->rq_sector = rq_sector; + __entry->wp_offset = wp_offset; + __entry->good_bytes = good_bytes; + ), + + TP_printk("host_no=%u, channel=%u id=%u lun=%u rq_sector=%llu" \ + " wp_offset=%u good_bytes=%u", + __entry->host_no, __entry->channel, __entry->id, + __entry->lun, __entry->rq_sector, __entry->wp_offset, + __entry->good_bytes) +); +#endif /* _SD_TRACE_H */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH ../../drivers/scsi +#include <trace/define_trace.h> diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index b163bf936acc..62abebbaf2e7 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -20,6 +20,9 @@ #include "sd.h" +#define CREATE_TRACE_POINTS +#include "sd_trace.h" + /** * sd_zbc_get_zone_wp_offset - Get zone write pointer offset. * @zone: Zone for which to return the write pointer offset. @@ -450,6 +453,7 @@ blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd, sector_t *lba, break; } + trace_scsi_prepare_zone_append(cmd, *lba, wp_offset); *lba += wp_offset; } spin_unlock_irqrestore(&sdkp->zones_wp_offset_lock, flags); @@ -558,6 +562,8 @@ static unsigned int sd_zbc_zone_wp_update(struct scsi_cmnd *cmd, switch (op) { case REQ_OP_ZONE_APPEND: + trace_scsi_zone_wp_update(cmd, rq->__sector, + sdkp->zones_wp_offset[zno], good_bytes); rq->__sector += sdkp->zones_wp_offset[zno]; fallthrough; case REQ_OP_WRITE_ZEROES: |