| /* |
| * Copyright (C) 2018 Western Digital Corporation or its affiliates. |
| * |
| * This file is released under the GPL. |
| */ |
| |
| #ifndef FIO_ZBD_H |
| #define FIO_ZBD_H |
| |
| #include "io_u.h" |
| #include "ioengines.h" |
| #include "oslib/blkzoned.h" |
| #include "zbd_types.h" |
| |
| struct fio_file; |
| |
| enum io_u_action { |
| io_u_accept = 0, |
| io_u_eof = 1, |
| io_u_completed = 2, |
| }; |
| |
| /** |
| * struct fio_zone_info - information about a single ZBD zone |
| * @start: zone start location (bytes) |
| * @wp: zone write pointer location (bytes) |
| * @capacity: maximum size usable from the start of a zone (bytes) |
| * @mutex: protects the modifiable members in this structure |
| * @type: zone type (BLK_ZONE_TYPE_*) |
| * @cond: zone state (BLK_ZONE_COND_*) |
| * @has_wp: whether or not this zone can have a valid write pointer |
| * @write: whether or not this zone is the write target at this moment. Only |
| * relevant if zbd->max_open_zones > 0. |
| * @reset_zone: whether or not this zone should be reset before writing to it |
| */ |
| struct fio_zone_info { |
| pthread_mutex_t mutex; |
| uint64_t start; |
| uint64_t wp; |
| uint64_t capacity; |
| enum zbd_zone_type type:2; |
| enum zbd_zone_cond cond:4; |
| unsigned int has_wp:1; |
| unsigned int write:1; |
| unsigned int reset_zone:1; |
| }; |
| |
| /** |
| * zoned_block_device_info - zoned block device characteristics |
| * @model: Device model. |
| * @max_write_zones: global limit on the number of sequential write zones which |
| * are simultaneously written. A zero value means unlimited zones of |
| * simultaneous writes and that write target zones will not be tracked in |
| * the write_zones array. |
| * @max_active_zones: device side limit on the number of sequential write zones |
| * in open or closed conditions. A zero value means unlimited number of |
| * zones in the conditions. |
| * @mutex: Protects the modifiable members in this structure (refcount and |
| * num_open_zones). |
| * @zone_size: size of a single zone in bytes. |
| * @wp_valid_data_bytes: total size of data in zones with write pointers |
| * @write_min_zone: Minimum zone index of all job's write ranges. Inclusive. |
| * @write_max_zone: Maximum zone index of all job's write ranges. Exclusive. |
| * @zone_size_log2: log2 of the zone size in bytes if it is a power of 2 or 0 |
| * if the zone size is not a power of 2. |
| * @nr_zones: number of zones |
| * @refcount: number of fio files that share this structure |
| * @num_write_zones: number of write target zones |
| * @write_cnt: Number of writes since the latest zone reset triggered by |
| * the zone_reset_frequency fio job parameter. |
| * @write_zones: zone numbers of write target zones |
| * @zone_info: description of the individual zones |
| * |
| * Only devices for which all zones have the same size are supported. |
| * Note: if the capacity is not a multiple of the zone size then the last zone |
| * will be smaller than 'zone_size'. |
| */ |
| struct zoned_block_device_info { |
| enum zbd_zoned_model model; |
| uint32_t max_write_zones; |
| uint32_t max_active_zones; |
| pthread_mutex_t mutex; |
| uint64_t zone_size; |
| uint64_t wp_valid_data_bytes; |
| uint32_t write_min_zone; |
| uint32_t write_max_zone; |
| uint32_t zone_size_log2; |
| uint32_t nr_zones; |
| uint32_t refcount; |
| uint32_t num_write_zones; |
| uint32_t write_cnt; |
| uint32_t write_zones[ZBD_MAX_WRITE_ZONES]; |
| struct fio_zone_info zone_info[0]; |
| }; |
| |
| int zbd_init_files(struct thread_data *td); |
| void zbd_recalc_options_with_zone_granularity(struct thread_data *td); |
| int zbd_setup_files(struct thread_data *td); |
| void zbd_free_zone_info(struct fio_file *f); |
| void zbd_file_reset(struct thread_data *td, struct fio_file *f); |
| bool zbd_unaligned_write(int error_code); |
| void setup_zbd_zone_mode(struct thread_data *td, struct io_u *io_u); |
| enum fio_ddir zbd_adjust_ddir(struct thread_data *td, struct io_u *io_u, |
| enum fio_ddir ddir); |
| enum io_u_action zbd_adjust_block(struct thread_data *td, struct io_u *io_u); |
| char *zbd_write_status(const struct thread_stat *ts); |
| int zbd_do_io_u_trim(struct thread_data *td, struct io_u *io_u); |
| void zbd_log_err(const struct thread_data *td, const struct io_u *io_u); |
| |
| static inline void zbd_close_file(struct fio_file *f) |
| { |
| if (f->zbd_info) |
| zbd_free_zone_info(f); |
| } |
| |
| static inline void zbd_queue_io_u(struct thread_data *td, struct io_u *io_u, |
| enum fio_q_status status) |
| { |
| if (io_u->zbd_queue_io) { |
| io_u->zbd_queue_io(td, io_u, status, io_u->error == 0); |
| io_u->zbd_queue_io = NULL; |
| } |
| } |
| |
| static inline void zbd_put_io_u(struct thread_data *td, struct io_u *io_u) |
| { |
| if (io_u->zbd_put_io) { |
| io_u->zbd_put_io(td, io_u); |
| io_u->zbd_queue_io = NULL; |
| io_u->zbd_put_io = NULL; |
| } |
| } |
| |
| #endif /* FIO_ZBD_H */ |