diff options
Diffstat (limited to 'megaraid.h')
| -rw-r--r-- | megaraid.h | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/megaraid.h b/megaraid.h new file mode 100644 index 0000000..fc07a05 --- /dev/null +++ b/megaraid.h @@ -0,0 +1,269 @@ +/* + * megaraid.h + * + * Home page of code is: http://www.smartmontools.org + * + * Copyright (C) 2008 Jordan Hargrave + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +int megaraid_io_interface(int device, int target, struct scsi_cmnd_io *, int); + +#undef u32 + +#define u8 uint8_t +#define u16 uint16_t +#define u32 uint32_t +#define u64 uint64_t + +/*====================================================== +* PERC2/3/4 Passthrough SCSI Command Interface +* +* Contents from: +* drivers/scsi/megaraid/megaraid_ioctl.h +* drivers/scsi/megaraid/mbox_defs.h +*======================================================*/ +#define MEGAIOC_MAGIC 'm' +#define MEGAIOCCMD _IOWR(MEGAIOC_MAGIC, 0, struct uioctl_t) + +/* Following subopcode work for opcode == 0x82 */ +#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | adapno) +#define MEGAIOC_QNADAP 'm' +#define MEGAIOC_QDRVRVER 'e' +#define MEGAIOC_QADAPINFO 'g' + +#define MEGA_MBOXCMD_PASSTHRU 0x03 + +#define MAX_REQ_SENSE_LEN 0x20 +#define MAX_CDB_LEN 10 + +typedef struct +{ + uint8_t timeout : 3; + uint8_t ars : 1; + uint8_t reserved : 3; + uint8_t islogical : 1; + uint8_t logdrv; + uint8_t channel; + uint8_t target; + uint8_t queuetag; + uint8_t queueaction; + uint8_t cdb[MAX_CDB_LEN]; + uint8_t cdblen; + uint8_t reqsenselen; + uint8_t reqsensearea[MAX_REQ_SENSE_LEN]; + uint8_t numsgelements; + uint8_t scsistatus; + uint32_t dataxferaddr; + uint32_t dataxferlen; +} __attribute__((packed)) mega_passthru; + +typedef struct +{ + uint8_t cmd; + uint8_t cmdid; + uint8_t opcode; + uint8_t subopcode; + uint32_t lba; + uint32_t xferaddr; + uint8_t logdrv; + uint8_t resvd[3]; + uint8_t numstatus; + uint8_t status; +} __attribute__((packed)) megacmd_t; + +typedef union { + uint8_t *pointer; + uint8_t pad[8]; +} ptr_t; + +// The above definition assumes sizeof(void*) <= 8. +// This assumption also exists in the linux megaraid device driver. +// So define a macro to check expected size of ptr_t at compile time using +// a dummy typedef. On size mismatch, compiler reports a negative array +// size. If you see an error message of this form, it means that +// you have an unexpected pointer size on your platform and can not +// use megaraid support in smartmontools. +typedef char assert_sizeof_ptr_t[sizeof(ptr_t) == 8 ? 1 : -1]; + +struct uioctl_t +{ + uint32_t inlen; + uint32_t outlen; + union { + uint8_t fca[16]; + struct { + uint8_t opcode; + uint8_t subopcode; + uint16_t adapno; + ptr_t buffer; + uint32_t length; + } __attribute__((packed)) fcs; + } __attribute__((packed)) ui; + + megacmd_t mbox; + mega_passthru pthru; + ptr_t data; +} __attribute__((packed)); + +/*=================================================== +* PERC5/6 Passthrough SCSI Command Interface +* +* Contents from: +* drivers/scsi/megaraid/megaraid_sas.h +*===================================================*/ +#define MEGASAS_MAGIC 'M' +#define MEGASAS_IOC_FIRMWARE _IOWR(MEGASAS_MAGIC, 1, struct megasas_iocpacket) + +#define MFI_CMD_PD_SCSI_IO 0x04 +#define MFI_CMD_DCMD 0x05 +#define MFI_FRAME_SGL64 0x02 +#define MFI_STAT_OK 0x00 +#define MFI_DCMD_PD_GET_LIST 0x02010000 +/* +* Number of mailbox bytes in DCMD message frame +*/ +#define MFI_MBOX_SIZE 12 +#define MAX_IOCTL_SGE 16 +#define MFI_FRAME_DIR_NONE 0x0000 +#define MFI_FRAME_DIR_WRITE 0x0008 +#define MFI_FRAME_DIR_READ 0x0010 +#define MFI_FRAME_DIR_BOTH 0x0018 + +#define MAX_SYS_PDS 240 + +struct megasas_sge32 { + + u32 phys_addr; + u32 length; + +} __attribute__ ((packed)); + +struct megasas_sge64 { + + u64 phys_addr; + u32 length; + +} __attribute__ ((packed)); + +union megasas_sgl { + + struct megasas_sge32 sge32[1]; + struct megasas_sge64 sge64[1]; + +} __attribute__ ((packed)); + +struct megasas_header { + + u8 cmd; /*00h */ + u8 sense_len; /*01h */ + u8 cmd_status; /*02h */ + u8 scsi_status; /*03h */ + + u8 target_id; /*04h */ + u8 lun; /*05h */ + u8 cdb_len; /*06h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + u32 data_xferlen; /*14h */ + +} __attribute__ ((packed)); + +struct megasas_pthru_frame { + + u8 cmd; /*00h */ + u8 sense_len; /*01h */ + u8 cmd_status; /*02h */ + u8 scsi_status; /*03h */ + + u8 target_id; /*04h */ + u8 lun; /*05h */ + u8 cdb_len; /*06h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + u32 data_xfer_len; /*14h */ + + u32 sense_buf_phys_addr_lo; /*18h */ + u32 sense_buf_phys_addr_hi; /*1Ch */ + + u8 cdb[16]; /*20h */ + union megasas_sgl sgl; /*30h */ + +} __attribute__ ((packed)); + +struct megasas_dcmd_frame { + + u8 cmd; /*00h */ + u8 reserved_0; /*01h */ + u8 cmd_status; /*02h */ + u8 reserved_1[4]; /*03h */ + u8 sge_count; /*07h */ + + u32 context; /*08h */ + u32 pad_0; /*0Ch */ + + u16 flags; /*10h */ + u16 timeout; /*12h */ + + u32 data_xfer_len; /*14h */ + u32 opcode; /*18h */ + + union { /*1Ch */ + u8 b[12]; + u16 s[6]; + u32 w[3]; + } mbox; + + union megasas_sgl sgl; /*28h */ + +} __attribute__ ((packed)); + +struct megasas_iocpacket { + u16 host_no; + u16 __pad1; + u32 sgl_off; + u32 sge_count; + u32 sense_off; + u32 sense_len; + union { + u8 raw[128]; + struct megasas_header hdr; + struct megasas_pthru_frame pthru; + struct megasas_dcmd_frame dcmd; + } frame; + + struct iovec sgl[MAX_IOCTL_SGE]; +} __attribute__ ((packed)); + +struct megasas_pd_address { + u16 device_id; + u16 encl_device_id; + u8 encl_index; + u8 slot_number; + u8 scsi_dev_type; /* 0 = disk */ + u8 connect_port_bitmap; + u64 sas_addr[2]; +} __attribute__ ((packed)); + +struct megasas_pd_list { + u32 size; + u32 count; + struct megasas_pd_address addr[MAX_SYS_PDS]; +} __attribute__ ((packed)); + +#undef u8 +#undef u16 +#undef u32 +#undef u64 + |