projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| b3d5e3fd AK |
1 | /* |
| 2 | * nvme structure declarations and helper functions for the | |
| 3 | * io_uring_cmd engine. | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef FIO_NVME_H | |
| 7 | #define FIO_NVME_H | |
| 8 | ||
| 9 | #include <linux/nvme_ioctl.h> | |
| 10 | #include "../fio.h" | |
| 11 | ||
| 12 | /* | |
| 13 | * If the uapi headers installed on the system lacks nvme uring command | |
| 14 | * support, use the local version to prevent compilation issues. | |
| 15 | */ | |
| 16 | #ifndef CONFIG_NVME_URING_CMD | |
| 17 | struct nvme_uring_cmd { | |
| 18 | __u8 opcode; | |
| 19 | __u8 flags; | |
| 20 | __u16 rsvd1; | |
| 21 | __u32 nsid; | |
| 22 | __u32 cdw2; | |
| 23 | __u32 cdw3; | |
| 24 | __u64 metadata; | |
| 25 | __u64 addr; | |
| 26 | __u32 metadata_len; | |
| 27 | __u32 data_len; | |
| 28 | __u32 cdw10; | |
| 29 | __u32 cdw11; | |
| 30 | __u32 cdw12; | |
| 31 | __u32 cdw13; | |
| 32 | __u32 cdw14; | |
| 33 | __u32 cdw15; | |
| 34 | __u32 timeout_ms; | |
| 35 | __u32 rsvd2; | |
| 36 | }; | |
| 37 | ||
| 38 | #define NVME_URING_CMD_IO _IOWR('N', 0x80, struct nvme_uring_cmd) | |
| 39 | #define NVME_URING_CMD_IO_VEC _IOWR('N', 0x81, struct nvme_uring_cmd) | |
| 40 | #endif /* CONFIG_NVME_URING_CMD */ | |
| 41 | ||
| 42 | #define NVME_DEFAULT_IOCTL_TIMEOUT 0 | |
| 43 | #define NVME_IDENTIFY_DATA_SIZE 4096 | |
| 44 | #define NVME_IDENTIFY_CSI_SHIFT 24 | |
| 45 | ||
| 46 | enum nvme_identify_cns { | |
| 47 | NVME_IDENTIFY_CNS_NS = 0x00, | |
| 48 | }; | |
| 49 | ||
| 50 | enum nvme_csi { | |
| 51 | NVME_CSI_NVM = 0, | |
| 52 | NVME_CSI_KV = 1, | |
| 53 | NVME_CSI_ZNS = 2, | |
| 54 | }; | |
| 55 | ||
| 56 | enum nvme_admin_opcode { | |
| 57 | nvme_admin_identify = 0x06, | |
| 58 | }; | |
| 59 | ||
| 60 | enum nvme_io_opcode { | |
| 61 | nvme_cmd_write = 0x01, | |
| 62 | nvme_cmd_read = 0x02, | |
| 63 | }; | |
| 64 | ||
| 65 | struct nvme_data { | |
| 66 | __u32 nsid; | |
| 67 | __u32 lba_shift; | |
| 68 | }; | |
| 69 | ||
| 70 | struct nvme_lbaf { | |
| 71 | __le16 ms; | |
| 72 | __u8 ds; | |
| 73 | __u8 rp; | |
| 74 | }; | |
| 75 | ||
| 76 | struct nvme_id_ns { | |
| 77 | __le64 nsze; | |
| 78 | __le64 ncap; | |
| 79 | __le64 nuse; | |
| 80 | __u8 nsfeat; | |
| 81 | __u8 nlbaf; | |
| 82 | __u8 flbas; | |
| 83 | __u8 mc; | |
| 84 | __u8 dpc; | |
| 85 | __u8 dps; | |
| 86 | __u8 nmic; | |
| 87 | __u8 rescap; | |
| 88 | __u8 fpi; | |
| 89 | __u8 dlfeat; | |
| 90 | __le16 nawun; | |
| 91 | __le16 nawupf; | |
| 92 | __le16 nacwu; | |
| 93 | __le16 nabsn; | |
| 94 | __le16 nabo; | |
| 95 | __le16 nabspf; | |
| 96 | __le16 noiob; | |
| 97 | __u8 nvmcap[16]; | |
| 98 | __le16 npwg; | |
| 99 | __le16 npwa; | |
| 100 | __le16 npdg; | |
| 101 | __le16 npda; | |
| 102 | __le16 nows; | |
| 103 | __le16 mssrl; | |
| 104 | __le32 mcl; | |
| 105 | __u8 msrc; | |
| 106 | __u8 rsvd81[11]; | |
| 107 | __le32 anagrpid; | |
| 108 | __u8 rsvd96[3]; | |
| 109 | __u8 nsattr; | |
| 110 | __le16 nvmsetid; | |
| 111 | __le16 endgid; | |
| 112 | __u8 nguid[16]; | |
| 113 | __u8 eui64[8]; | |
| 114 | struct nvme_lbaf lbaf[16]; | |
| 115 | __u8 rsvd192[192]; | |
| 116 | __u8 vs[3712]; | |
| 117 | }; | |
| 118 | ||
| 119 | static inline int ilog2(uint32_t i) | |
| 120 | { | |
| 121 | int log = -1; | |
| 122 | ||
| 123 | while (i) { | |
| 124 | i >>= 1; | |
| 125 | log++; | |
| 126 | } | |
| 127 | return log; | |
| 128 | } | |
| 129 | ||
| 130 | int fio_nvme_get_info(struct fio_file *f, __u32 *nsid, __u32 *lba_sz, | |
| 131 | __u64 *nlba); | |
| 132 | ||
| 133 | int fio_nvme_uring_cmd_prep(struct nvme_uring_cmd *cmd, struct io_u *io_u, | |
| 134 | struct iovec *iov); | |
| 135 | ||
| 136 | #endif |