projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| e9f6567a DLM |
1 | /* |
| 2 | * IO priority handling declarations and helper functions common to the | |
| 3 | * libaio and io_uring engines. | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef FIO_CMDPRIO_H | |
| 7 | #define FIO_CMDPRIO_H | |
| 8 | ||
| 9 | #include "../fio.h" | |
| 10 | ||
| a5af2a8b NC |
11 | /* read and writes only, no trim */ |
| 12 | #define CMDPRIO_RWDIR_CNT 2 | |
| 13 | ||
| 97f2d484 NC |
14 | enum { |
| 15 | CMDPRIO_MODE_NONE, | |
| 16 | CMDPRIO_MODE_PERC, | |
| 17 | CMDPRIO_MODE_BSSPLIT, | |
| 18 | }; | |
| 19 | ||
| f0547200 NC |
20 | struct cmdprio_prio { |
| 21 | int32_t prio; | |
| 22 | uint32_t perc; | |
| 23 | uint16_t clat_prio_index; | |
| 24 | }; | |
| 25 | ||
| 26 | struct cmdprio_bsprio { | |
| 27 | uint64_t bs; | |
| 28 | uint32_t tot_perc; | |
| 29 | unsigned int nr_prios; | |
| 30 | struct cmdprio_prio *prios; | |
| 31 | }; | |
| 32 | ||
| 33 | struct cmdprio_bsprio_desc { | |
| 34 | struct cmdprio_bsprio *bsprios; | |
| 35 | unsigned int nr_bsprios; | |
| 36 | }; | |
| 37 | ||
| d6cbeab4 | 38 | struct cmdprio_options { |
| a5af2a8b NC |
39 | unsigned int percentage[CMDPRIO_RWDIR_CNT]; |
| 40 | unsigned int class[CMDPRIO_RWDIR_CNT]; | |
| 41 | unsigned int level[CMDPRIO_RWDIR_CNT]; | |
| d6cbeab4 NC |
42 | char *bssplit_str; |
| 43 | }; | |
| 44 | ||
| 45 | struct cmdprio { | |
| 46 | struct cmdprio_options *options; | |
| f0547200 NC |
47 | struct cmdprio_prio perc_entry[CMDPRIO_RWDIR_CNT]; |
| 48 | struct cmdprio_bsprio_desc bsprio_desc[CMDPRIO_RWDIR_CNT]; | |
| 97f2d484 | 49 | unsigned int mode; |
| e9f6567a DLM |
50 | }; |
| 51 | ||
| 127715b6 NC |
52 | bool fio_cmdprio_set_ioprio(struct thread_data *td, struct cmdprio *cmdprio, |
| 53 | struct io_u *io_u); | |
| a48f0cc7 | 54 | |
| d6cbeab4 NC |
55 | void fio_cmdprio_cleanup(struct cmdprio *cmdprio); |
| 56 | ||
| 57 | int fio_cmdprio_init(struct thread_data *td, struct cmdprio *cmdprio, | |
| 58 | struct cmdprio_options *options); | |
| e9f6567a DLM |
59 | |
| 60 | #endif |