diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/osd_initiator.h | 39 | ||||
| -rw-r--r-- | include/scsi/osd_protocol.h | 90 |
2 files changed, 125 insertions, 4 deletions
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h index e84dc7aa5e3..8482777416d 100644 --- a/include/scsi/osd_initiator.h +++ b/include/scsi/osd_initiator.h @@ -21,6 +21,23 @@ /* Note: "NI" in comments below means "Not Implemented yet" */ +/* Configure of code: + * #undef if you *don't* want OSD v1 support in runtime. + * If #defined the initiator will dynamically configure to encode OSD v1 + * CDB's if the target is detected to be OSD v1 only. + * OSD v2 only commands, options, and attributes will be ignored if target + * is v1 only. + * If #defined will result in bigger/slower code (OK Slower maybe not) + * Q: Should this be CONFIG_SCSI_OSD_VER1_SUPPORT and set from Kconfig? + */ +#define OSD_VER1_SUPPORT y + +enum osd_std_version { + OSD_VER_NONE = 0, + OSD_VER1 = 1, + OSD_VER2 = 2, +}; + /* * Object-based Storage Device. * This object represents an OSD device. @@ -31,6 +48,10 @@ struct osd_dev { struct scsi_device *scsi_device; unsigned def_timeout; + +#ifdef OSD_VER1_SUPPORT + enum osd_std_version version; +#endif }; /* Retrieve/return osd_dev(s) for use by Kernel clients */ @@ -46,6 +67,14 @@ void osduld_unregister_test(unsigned ioctl); void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device); void osd_dev_fini(struct osd_dev *od); +/* we might want to use function vector in the future */ +static inline void osd_dev_set_ver(struct osd_dev *od, enum osd_std_version v) +{ +#ifdef OSD_VER1_SUPPORT + od->version = v; +#endif +} + struct osd_request; typedef void (osd_req_done_fn)(struct osd_request *or, void *private); @@ -82,6 +111,16 @@ struct osd_request { int async_error; }; +/* OSD Version control */ +static inline bool osd_req_is_ver1(struct osd_request *or) +{ +#ifdef OSD_VER1_SUPPORT + return or->osd_dev->version == OSD_VER1; +#else + return false; +#endif +} + /* * How to use the osd library: * diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h index ce1a8771ea7..cd3cbf76465 100644 --- a/include/scsi/osd_protocol.h +++ b/include/scsi/osd_protocol.h @@ -25,12 +25,16 @@ enum { OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8, OSDv1_CAP_LEN = 80, /* Latest supported version */ - OSD_ADDITIONAL_CDB_LENGTH = OSDv1_ADDITIONAL_CDB_LENGTH, - OSD_TOTAL_CDB_LEN = OSDv1_TOTAL_CDB_LEN, - OSD_CAP_LEN = OSDv1_CAP_LEN, +/* OSD_ADDITIONAL_CDB_LENGTH = 216,*/ + OSD_ADDITIONAL_CDB_LENGTH = + OSDv1_ADDITIONAL_CDB_LENGTH, /* FIXME: Pete rev-001 sup */ + OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8, +/* OSD_CAP_LEN = 104,*/ + OSD_CAP_LEN = OSDv1_CAP_LEN,/* FIXME: Pete rev-001 sup */ OSD_SYSTEMID_LEN = 20, OSD_CRYPTO_KEYID_SIZE = 20, + /*FIXME: OSDv2_CRYPTO_KEYID_SIZE = 32,*/ OSD_CRYPTO_SEED_SIZE = 4, OSD_CRYPTO_NONCE_SIZE = 12, OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */ @@ -108,6 +112,7 @@ enum { OSD_OFFSET_MAX_BITS = 28, OSDv1_OFFSET_MIN_SHIFT = 8, + OSD_OFFSET_MIN_SHIFT = 3, OSD_OFFSET_MAX_SHIFT = 16, }; @@ -129,6 +134,16 @@ static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding) OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT); } +/* Minimum 8 bytes alignment + * Same as v1 but since exponent can be signed than a less than + * 256 alignment can be reached with small offsets (<2GB) + */ +static inline osd_cdb_offset osd_encode_offset_v2(u64 offset, unsigned *padding) +{ + return __osd_encode_offset(offset, padding, + OSD_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT); +} + /* osd2r03: 5.2.1 Overview */ struct osd_cdb_head { struct scsi_varlen_cdb_hdr varlen_cdb; @@ -144,6 +159,13 @@ struct osd_cdb_head { /*36*/ __be64 length; /*44*/ __be64 start_address; } __packed v1; + + struct __osdv2_cdb_addr_len { + /* called allocation_length in some commands */ +/*32*/ __be64 length; +/*40*/ __be64 start_address; +/*48*/ __be32 list_identifier;/* Rarely used */ + } __packed v2; }; /*52*/ union { /* selected attributes mode Page/List/Single */ struct osd_attributes_page_mode { @@ -182,6 +204,7 @@ struct osd_cdb_head { /*80*/ /*160 v1*/ +/*184 v2*/ struct osd_security_parameters { /*160*/u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE]; /*180*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE]; @@ -189,6 +212,9 @@ struct osd_security_parameters { /*196*/osd_cdb_offset data_out_integrity_check_offset; } __packed; /*200 v1*/ +/*224 v2*/ + +/* FIXME: osdv2_security_parameters */ struct osdv1_cdb { struct osd_cdb_head h; @@ -196,9 +222,17 @@ struct osdv1_cdb { struct osd_security_parameters sec_params; } __packed; +struct osdv2_cdb { + struct osd_cdb_head h; + u8 caps[OSD_CAP_LEN]; + struct osd_security_parameters sec_params; + /* FIXME: osdv2_security_parameters */ +} __packed; + struct osd_cdb { union { struct osdv1_cdb v1; + struct osdv2_cdb v2; u8 buff[OSD_TOTAL_CDB_LEN]; }; } __packed; @@ -269,6 +303,7 @@ struct osd_attributes_list_attrid { /* * osd2r03: 7.1.3.3 List entry format for retrieved attributes and * for setting attributes + * NOTE: v2 is 8-bytes aligned, v1 is not aligned. */ struct osd_attributes_list_element { __be32 attr_page; @@ -279,6 +314,7 @@ struct osd_attributes_list_element { enum { OSDv1_ATTRIBUTES_ELEM_ALIGN = 1, + OSD_ATTRIBUTES_ELEM_ALIGN = 8, }; enum { @@ -292,6 +328,12 @@ static inline unsigned osdv1_attr_list_elem_size(unsigned len) OSDv1_ATTRIBUTES_ELEM_ALIGN); } +static inline unsigned osdv2_attr_list_elem_size(unsigned len) +{ + return ALIGN(len + sizeof(struct osd_attributes_list_element), + OSD_ATTRIBUTES_ELEM_ALIGN); +} + /* * osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values */ @@ -326,6 +368,21 @@ static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h) return be16_to_cpu(h->list_bytes); } +struct osdv2_attributes_list_header { + u8 type; /* lower 4-bits only */ + u8 pad[3]; +/*4*/ __be32 list_bytes; /* Initiator shall set to zero. Only set by target */ + /* + * type=9 followed by struct osd_attributes_list_element's + * type=E followed by struct osd_attributes_list_multi_header's + */ +} __packed; + +static inline unsigned osdv2_list_size(struct osdv2_attributes_list_header *h) +{ + return be32_to_cpu(h->list_bytes); +} + /* (osd-r10 6.13) * osd2r03: 6.15 LIST (Table 79) LIST command parameter data. * for root_lstchg below @@ -469,11 +526,36 @@ struct osdv1_cap_object_descriptor { } __packed; /*80 v1*/ -struct osd_capability { +/*56 v2*/ +struct osd_cap_object_descriptor { + union { + struct { +/*56*/ __be32 allowed_attributes_access; +/*60*/ __be32 policy_access_tag; +/*64*/ __be16 boot_epoch; +/*66*/ u8 reserved[6]; +/*72*/ __be64 allowed_partition_id; +/*80*/ __be64 allowed_object_id; +/*88*/ __be64 allowed_range_length; +/*96*/ __be64 allowed_range_start; + } __packed obj_desc; + +/*56*/ u8 object_descriptor[48]; + }; +} __packed; +/*104 v2*/ + +struct osdv1_capability { struct osd_capability_head h; struct osdv1_cap_object_descriptor od; } __packed; +struct osd_capability { + struct osd_capability_head h; +/* struct osd_cap_object_descriptor od;*/ + struct osdv1_cap_object_descriptor od; /* FIXME: Pete rev-001 sup */ +} __packed; + /** * osd_sec_set_caps - set cap-bits into the capabilities header * |