diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2010-04-03 07:09:30 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2010-04-03 07:09:30 +0000 |
| commit | d996f4362efd28d814bac947f37c403ab2462c7e (patch) | |
| tree | 052c26f3190708c873fe2a67c6510be855d72199 /sys/scsi | |
| parent | bb944976dc31039a7843473e42b5fe344e6b6402 (diff) | |
add support for emulating the disk characteristics and disk limits vpd
pages. this if the first step in figuring out if disks use a different
physical block size compared to the logical block size they present to the
operating system.
Diffstat (limited to 'sys/scsi')
| -rw-r--r-- | sys/scsi/scsi_disk.h | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/sys/scsi/scsi_disk.h b/sys/scsi/scsi_disk.h index 1f4abf27a08..7cc5d2b39e4 100644 --- a/sys/scsi/scsi_disk.h +++ b/sys/scsi/scsi_disk.h @@ -1,4 +1,4 @@ -/* $OpenBSD: scsi_disk.h,v 1.24 2010/01/03 11:09:41 dlg Exp $ */ +/* $OpenBSD: scsi_disk.h,v 1.25 2010/04/03 07:09:29 dlg Exp $ */ /* $NetBSD: scsi_disk.h,v 1.10 1996/07/05 16:19:05 christos Exp $ */ /* @@ -395,4 +395,50 @@ struct page_caching_mode { u_int8_t max_prefetch_ceil[2]; }; +#define SI_PG_DISK_LIMITS 0xb0 /* block limits */ +#define SI_PG_DISK_INFO 0xb1 /* device charateristics */ + +struct scsi_vpd_disk_limits { + struct scsi_vpd_hdr hdr; +#define SI_PG_DISK_LIMITS_LEN 0x10 +#define SI_PG_DISK_LIMITS_LEN_THIN 0x3c + + u_int8_t _reserved1[1]; + u_int8_t max_comp_wr_len; + u_int8_t optimal_xfer_granularity[2]; + + u_int8_t max_xfer_len[4]; + + u_int8_t optimal_xfer[4]; + + u_int8_t max_xd_prefetch_len[4]; + + u_int8_t max_unmap_lba_count[4]; + + u_int8_t max_unmap_desc_count[4]; + + u_int8_t optimal_unmap_granularity[4]; + + u_int8_t unmap_granularity_align[4]; + + u_int8_t _reserved2[28]; +}; + +struct scsi_vpd_disk_info { + struct scsi_vpd_hdr hdr; + u_int8_t rpm[2]; +#define VPD_DISK_INFO_RPM_UNDEF 0x0000 +#define VPD_DISK_INFO_RPM_NONE 0x0001 + u_int8_t _reserved1[1]; + u_int8_t form_factor; +#define VPD_DISK_INFO_FORM_MASK 0xf +#define VPD_DISK_INFO_FORM_UNDEF 0x0 +#define VPD_DISK_INFO_FORM_5_25 0x1 +#define VPD_DISK_INFO_FORM_3_5 0x2 +#define VPD_DISK_INFO_FORM_2_5 0x3 +#define VPD_DISK_INFO_FORM_1_8 0x4 +#define VPD_DISK_INFO_FORM_LT_1_8 0x5 + u_int8_t _reserved2[56]; +}; + #endif /* _SCSI_SCSI_DISK_H */ |