diff options
Diffstat (limited to 'include/scsi/osd_protocol.h')
| -rw-r--r-- | include/scsi/osd_protocol.h | 676 |
1 files changed, 0 insertions, 676 deletions
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h deleted file mode 100644 index e0ca835e7bf7..000000000000 --- a/include/scsi/osd_protocol.h +++ /dev/null @@ -1,676 +0,0 @@ -/* - * osd_protocol.h - OSD T10 standard C definitions. - * - * Copyright (C) 2008 Panasas Inc. All rights reserved. - * - * Authors: - * Boaz Harrosh <ooo@electrozaur.com> - * Benny Halevy <bhalevy@panasas.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * - * This file contains types and constants that are defined by the protocol - * Note: All names and symbols are taken from the OSD standard's text. - */ -#ifndef __OSD_PROTOCOL_H__ -#define __OSD_PROTOCOL_H__ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <asm/unaligned.h> -#include <scsi/scsi.h> - -enum { - OSDv1_ADDITIONAL_CDB_LENGTH = 192, - OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8, - OSDv1_CAP_LEN = 80, - - /* Latest supported version */ - OSDv2_ADDITIONAL_CDB_LENGTH = 228, - OSD_ADDITIONAL_CDB_LENGTH = - OSDv2_ADDITIONAL_CDB_LENGTH, - OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8, - OSD_CAP_LEN = 104, - - OSD_SYSTEMID_LEN = 20, - OSDv1_CRYPTO_KEYID_SIZE = 20, - OSDv2_CRYPTO_KEYID_SIZE = 32, - OSD_CRYPTO_KEYID_SIZE = OSDv2_CRYPTO_KEYID_SIZE, - OSD_CRYPTO_SEED_SIZE = 4, - OSD_CRYPTO_NONCE_SIZE = 12, - OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */ - - OSD_PARTITION_FIRST_ID = 0x10000, - OSD_OBJECT_FIRST_ID = 0x10000, -}; - -/* (osd-r10 5.2.4) - * osd2r03: 5.2.3 Caching control bits - */ -enum osd_options_byte { - OSD_CDB_FUA = 0x08, /* Force Unit Access */ - OSD_CDB_DPO = 0x10, /* Disable Page Out */ -}; - -/* - * osd2r03: 5.2.5 Isolation. - * First 3 bits, V2-only. - * Also for attr 110h "default isolation method" at Root Information page - */ -enum osd_options_byte_isolation { - OSD_ISOLATION_DEFAULT = 0, - OSD_ISOLATION_NONE = 1, - OSD_ISOLATION_STRICT = 2, - OSD_ISOLATION_RANGE = 4, - OSD_ISOLATION_FUNCTIONAL = 5, - OSD_ISOLATION_VENDOR = 7, -}; - -/* (osd-r10: 6.7) - * osd2r03: 6.8 FLUSH, FLUSH COLLECTION, FLUSH OSD, FLUSH PARTITION - */ -enum osd_options_flush_scope_values { - OSD_CDB_FLUSH_ALL = 0, - OSD_CDB_FLUSH_ATTR_ONLY = 1, - - OSD_CDB_FLUSH_ALL_RECURSIVE = 2, - /* V2-only */ - OSD_CDB_FLUSH_ALL_RANGE = 2, -}; - -/* osd2r03: 5.2.10 Timestamps control */ -enum { - OSD_CDB_NORMAL_TIMESTAMPS = 0, - OSD_CDB_BYPASS_TIMESTAMPS = 0x7f, -}; - -/* (osd-r10: 5.2.2.1) - * osd2r03: 5.2.4.1 Get and set attributes CDB format selection - * 2 bits at second nibble of command_specific_options byte - */ -enum osd_attributes_mode { - /* V2-only */ - OSD_CDB_SET_ONE_ATTR = 0x10, - - OSD_CDB_GET_ATTR_PAGE_SET_ONE = 0x20, - OSD_CDB_GET_SET_ATTR_LISTS = 0x30, - - OSD_CDB_GET_SET_ATTR_MASK = 0x30, -}; - -/* (osd-r10: 4.12.5) - * osd2r03: 4.14.5 Data-In and Data-Out buffer offsets - * byte offset = mantissa * (2^(exponent+8)) - * struct { - * unsigned mantissa: 28; - * int exponent: 04; - * } - */ -typedef __be32 osd_cdb_offset; - -enum { - OSD_OFFSET_UNUSED = 0xFFFFFFFF, - OSD_OFFSET_MAX_BITS = 28, - - OSDv1_OFFSET_MIN_SHIFT = 8, - OSD_OFFSET_MIN_SHIFT = 3, - OSD_OFFSET_MAX_SHIFT = 16, -}; - -/* Return the smallest allowed encoded offset that contains @offset. - * - * The actual encoded offset returned is @offset + *padding. - * (up to max_shift, non-inclusive) - */ -osd_cdb_offset __osd_encode_offset(u64 offset, unsigned *padding, - int min_shift, int max_shift); - -/* Minimum alignment is 256 bytes - * Note: Seems from std v1 that exponent can be from 0+8 to 0xE+8 (inclusive) - * which is 8 to 23 but IBM code restricts it to 16, so be it. - */ -static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding) -{ - return __osd_encode_offset(offset, 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; -/*10*/ u8 options; - u8 command_specific_options; - u8 timestamp_control; -/*13*/ u8 reserved1[3]; -/*16*/ __be64 partition; -/*24*/ __be64 object; -/*32*/ union { /* V1 vs V2 alignment differences */ - struct __osdv1_cdb_addr_len { -/*32*/ __be32 list_identifier;/* Rarely used */ -/*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; - union { -/*48*/ __be32 list_identifier;/* Rarely used */ - /* OSD2r05 5.2.5 CDB continuation length */ -/*48*/ __be32 cdb_continuation_length; - }; - } __packed v2; - }; -/*52*/ union { /* selected attributes mode Page/List/Single */ - struct osd_attributes_page_mode { -/*52*/ __be32 get_attr_page; -/*56*/ __be32 get_attr_alloc_length; -/*60*/ osd_cdb_offset get_attr_offset; - -/*64*/ __be32 set_attr_page; -/*68*/ __be32 set_attr_id; -/*72*/ __be32 set_attr_length; -/*76*/ osd_cdb_offset set_attr_offset; -/*80*/ } __packed attrs_page; - - struct osd_attributes_list_mode { -/*52*/ __be32 get_attr_desc_bytes; -/*56*/ osd_cdb_offset get_attr_desc_offset; - -/*60*/ __be32 get_attr_alloc_length; -/*64*/ osd_cdb_offset get_attr_offset; - -/*68*/ __be32 set_attr_bytes; -/*72*/ osd_cdb_offset set_attr_offset; - __be32 not_used; -/*80*/ } __packed attrs_list; - - /* osd2r03:5.2.4.2 Set one attribute value using CDB fields */ - struct osd_attributes_cdb_mode { -/*52*/ __be32 set_attr_page; -/*56*/ __be32 set_attr_id; -/*60*/ __be16 set_attr_len; -/*62*/ u8 set_attr_val[18]; -/*80*/ } __packed attrs_cdb; -/*52*/ u8 get_set_attributes_parameters[28]; - }; -} __packed; -/*80*/ - -/*160 v1*/ -struct osdv1_security_parameters { -/*160*/u8 integrity_check_value[OSDv1_CRYPTO_KEYID_SIZE]; -/*180*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE]; -/*192*/osd_cdb_offset data_in_integrity_check_offset; -/*196*/osd_cdb_offset data_out_integrity_check_offset; -} __packed; -/*200 v1*/ - -/*184 v2*/ -struct osdv2_security_parameters { -/*184*/u8 integrity_check_value[OSDv2_CRYPTO_KEYID_SIZE]; -/*216*/u8 request_nonce[OSD_CRYPTO_NONCE_SIZE]; -/*228*/osd_cdb_offset data_in_integrity_check_offset; -/*232*/osd_cdb_offset data_out_integrity_check_offset; -} __packed; -/*236 v2*/ - -struct osd_security_parameters { - union { - struct osdv1_security_parameters v1; - struct osdv2_security_parameters v2; - }; -}; - -struct osdv1_cdb { - struct osd_cdb_head h; - u8 caps[OSDv1_CAP_LEN]; - struct osdv1_security_parameters sec_params; -} __packed; - -struct osdv2_cdb { - struct osd_cdb_head h; - u8 caps[OSD_CAP_LEN]; - struct osdv2_security_parameters sec_params; -} __packed; - -struct osd_cdb { - union { - struct osdv1_cdb v1; - struct osdv2_cdb v2; - u8 buff[OSD_TOTAL_CDB_LEN]; - }; -} __packed; - -static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb) -{ - return (struct osd_cdb_head *)ocdb->buff; -} - -/* define both version actions - * Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD - */ -#define OSD_ACT___(Name, Num) \ - OSD_ACT_##Name = cpu_to_be16(0x8880 + Num), \ - OSDv1_ACT_##Name = cpu_to_be16(0x8800 + Num), - -/* V2 only actions */ -#define OSD_ACT_V2(Name, Num) \ - OSD_ACT_##Name = cpu_to_be16(0x8880 + Num), - -#define OSD_ACT_V1_V2(Name, Num1, Num2) \ - OSD_ACT_##Name = cpu_to_be16(Num2), \ - OSDv1_ACT_##Name = cpu_to_be16(Num1), - -enum osd_service_actions { - OSD_ACT_V2(OBJECT_STRUCTURE_CHECK, 0x00) - OSD_ACT___(FORMAT_OSD, 0x01) - OSD_ACT___(CREATE, 0x02) - OSD_ACT___(LIST, 0x03) - OSD_ACT_V2(PUNCH, 0x04) - OSD_ACT___(READ, 0x05) - OSD_ACT___(WRITE, 0x06) - OSD_ACT___(APPEND, 0x07) - OSD_ACT___(FLUSH, 0x08) - OSD_ACT_V2(CLEAR, 0x09) - OSD_ACT___(REMOVE, 0x0A) - OSD_ACT___(CREATE_PARTITION, 0x0B) - OSD_ACT___(REMOVE_PARTITION, 0x0C) - OSD_ACT___(GET_ATTRIBUTES, 0x0E) - OSD_ACT___(SET_ATTRIBUTES, 0x0F) - OSD_ACT___(CREATE_AND_WRITE, 0x12) - OSD_ACT___(CREATE_COLLECTION, 0x15) - OSD_ACT___(REMOVE_COLLECTION, 0x16) - OSD_ACT___(LIST_COLLECTION, 0x17) - OSD_ACT___(SET_KEY, 0x18) - OSD_ACT___(SET_MASTER_KEY, 0x19) - OSD_ACT___(FLUSH_COLLECTION, 0x1A) - OSD_ACT___(FLUSH_PARTITION, 0x1B) - OSD_ACT___(FLUSH_OSD, 0x1C) - - OSD_ACT_V2(QUERY, 0x20) - OSD_ACT_V2(REMOVE_MEMBER_OBJECTS, 0x21) - OSD_ACT_V2(GET_MEMBER_ATTRIBUTES, 0x22) - OSD_ACT_V2(SET_MEMBER_ATTRIBUTES, 0x23) - - OSD_ACT_V2(CREATE_CLONE, 0x28) - OSD_ACT_V2(CREATE_SNAPSHOT, 0x29) - OSD_ACT_V2(DETACH_CLONE, 0x2A) - OSD_ACT_V2(REFRESH_SNAPSHOT_CLONE, 0x2B) - OSD_ACT_V2(RESTORE_PARTITION_FROM_SNAPSHOT, 0x2C) - - OSD_ACT_V2(READ_MAP, 0x31) - OSD_ACT_V2(READ_MAPS_COMPARE, 0x32) - - OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND, 0x8F7E, 0x8F7C) - OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT, 0x8F7F, 0x8F7D) - /* 0x8F80 to 0x8FFF are Vendor specific */ -}; - -/* osd2r03: 7.1.3.2 List entry format for retrieving attributes */ -struct osd_attributes_list_attrid { - __be32 attr_page; - __be32 attr_id; -} __packed; - -/* - * NOTE: v1: is not aligned. - */ -struct osdv1_attributes_list_element { - __be32 attr_page; - __be32 attr_id; - __be16 attr_bytes; /* valid bytes at attr_val without padding */ - u8 attr_val[0]; -} __packed; - -/* - * osd2r03: 7.1.3.3 List entry format for retrieved attributes and - * for setting attributes - * NOTE: v2 is 8-bytes aligned - */ -struct osdv2_attributes_list_element { - __be32 attr_page; - __be32 attr_id; - u8 reserved[6]; - __be16 attr_bytes; /* valid bytes at attr_val without padding */ - u8 attr_val[0]; -} __packed; - -enum { - OSDv1_ATTRIBUTES_ELEM_ALIGN = 1, - OSD_ATTRIBUTES_ELEM_ALIGN = 8, -}; - -enum { - OSD_ATTR_LIST_ALL_PAGES = 0xFFFFFFFF, - OSD_ATTR_LIST_ALL_IN_PAGE = 0xFFFFFFFF, -}; - -static inline unsigned osdv1_attr_list_elem_size(unsigned len) -{ - return ALIGN(len + sizeof(struct osdv1_attributes_list_element), - OSDv1_ATTRIBUTES_ELEM_ALIGN); -} - -static inline unsigned osdv2_attr_list_elem_size(unsigned len) -{ - return ALIGN(len + sizeof(struct osdv2_attributes_list_element), - OSD_ATTRIBUTES_ELEM_ALIGN); -} - -/* - * osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values - */ -enum osd_attr_list_types { - OSD_ATTR_LIST_GET = 0x1, /* descriptors only */ - OSD_ATTR_LIST_SET_RETRIEVE = 0x9, /*descriptors/values variable-length*/ - OSD_V2_ATTR_LIST_MULTIPLE = 0xE, /* ver2, Multiple Objects lists*/ - OSD_V1_ATTR_LIST_CREATE_MULTIPLE = 0xF,/*ver1, used by create_multple*/ -}; - -/* osd2r03: 7.1.3.4 Multi-object retrieved attributes format */ -struct osd_attributes_list_multi_header { - __be64 object_id; - u8 object_type; /* object_type enum below */ - u8 reserved[5]; - __be16 list_bytes; - /* followed by struct osd_attributes_list_element's */ -}; - -struct osdv1_attributes_list_header { - u8 type; /* low 4-bit only */ - u8 pad; - __be16 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 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 - */ -enum { - OSD_OBJ_ID_LIST_PAR = 0x1, /* V1-only. Not used in V2 */ - OSD_OBJ_ID_LIST_LSTCHG = 0x2, -}; - -/* - * osd2r03: 6.15.2 LIST command parameter data - * (Also for LIST COLLECTION) - */ -struct osd_obj_id_list { - __be64 list_bytes; /* bytes in list excluding list_bytes (-8) */ - __be64 continuation_id; - __be32 list_identifier; - u8 pad[3]; - u8 root_lstchg; - __be64 object_ids[0]; -} __packed; - -static inline bool osd_is_obj_list_done(struct osd_obj_id_list *list, - bool *is_changed) -{ - *is_changed = (0 != (list->root_lstchg & OSD_OBJ_ID_LIST_LSTCHG)); - return 0 != list->continuation_id; -} - -/* - * osd2r03: 4.12.4.5 The ALLDATA security method - */ -struct osd_data_out_integrity_info { - __be64 data_bytes; - __be64 set_attributes_bytes; - __be64 get_attributes_bytes; - __u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE]; -} __packed; - -/* Same osd_data_out_integrity_info is used for OSD2/OSD1. The only difference - * Is the sizeof the structure since in OSD1 the last array is smaller. Use - * below for version independent handling of this structure - */ -static inline int osd_data_out_integrity_info_sizeof(bool is_ver1) -{ - return sizeof(struct osd_data_out_integrity_info) - - (is_ver1 * (OSDv2_CRYPTO_KEYID_SIZE - OSDv1_CRYPTO_KEYID_SIZE)); -} - -struct osd_data_in_integrity_info { - __be64 data_bytes; - __be64 retrieved_attributes_bytes; - __u8 integrity_check_value[OSD_CRYPTO_KEYID_SIZE]; -} __packed; - -/* Same osd_data_in_integrity_info is used for OSD2/OSD1. The only difference - * Is the sizeof the structure since in OSD1 the last array is smaller. Use - * below for version independent handling of this structure - */ -static inline int osd_data_in_integrity_info_sizeof(bool is_ver1) -{ - return sizeof(struct osd_data_in_integrity_info) - - (is_ver1 * (OSDv2_CRYPTO_KEYID_SIZE - OSDv1_CRYPTO_KEYID_SIZE)); -} - -struct osd_timestamp { - u8 time[6]; /* number of milliseconds since 1/1/1970 UT (big endian) */ -} __packed; -/* FIXME: define helper functions to convert to/from osd time format */ - -/* - * Capability & Security definitions - * osd2r03: 4.11.2.2 Capability format - * osd2r03: 5.2.8 Security parameters - */ - -struct osd_key_identifier { - u8 id[7]; /* if you know why 7 please email ooo@electrozaur.com */ -} __packed; - -/* for osd_capability.format */ -enum { - OSD_SEC_CAP_FORMAT_NO_CAPS = 0, - OSD_SEC_CAP_FORMAT_VER1 = 1, - OSD_SEC_CAP_FORMAT_VER2 = 2, -}; - -/* security_method */ -enum { - OSD_SEC_NOSEC = 0, - OSD_SEC_CAPKEY = 1, - OSD_SEC_CMDRSP = 2, - OSD_SEC_ALLDATA = 3, -}; - -enum object_type { - OSD_SEC_OBJ_ROOT = 0x1, - OSD_SEC_OBJ_PARTITION = 0x2, - OSD_SEC_OBJ_COLLECTION = 0x40, - OSD_SEC_OBJ_USER = 0x80, -}; - -enum osd_capability_bit_masks { - OSD_SEC_CAP_APPEND = BIT(0), - OSD_SEC_CAP_OBJ_MGMT = BIT(1), - OSD_SEC_CAP_REMOVE = BIT(2), - OSD_SEC_CAP_CREATE = BIT(3), - OSD_SEC_CAP_SET_ATTR = BIT(4), - OSD_SEC_CAP_GET_ATTR = BIT(5), - OSD_SEC_CAP_WRITE = BIT(6), - OSD_SEC_CAP_READ = BIT(7), - - OSD_SEC_CAP_NONE1 = BIT(8), - OSD_SEC_CAP_NONE2 = BIT(9), - OSD_SEC_GBL_REM = BIT(10), /*v2 only*/ - OSD_SEC_CAP_QUERY = BIT(11), /*v2 only*/ - OSD_SEC_CAP_M_OBJECT = BIT(12), /*v2 only*/ - OSD_SEC_CAP_POL_SEC = BIT(13), - OSD_SEC_CAP_GLOBAL = BIT(14), - OSD_SEC_CAP_DEV_MGMT = BIT(15), -}; - -/* for object_descriptor_type (hi nibble used) */ -enum { - OSD_SEC_OBJ_DESC_NONE = 0, /* Not allowed */ - OSD_SEC_OBJ_DESC_OBJ = 1 << 4, /* v1: also collection */ - OSD_SEC_OBJ_DESC_PAR = 2 << 4, /* also root */ - OSD_SEC_OBJ_DESC_COL = 3 << 4, /* v2 only */ -}; - -/* (osd-r10:4.9.2.2) - * osd2r03:4.11.2.2 Capability format - */ -struct osd_capability_head { - u8 format; /* low nibble */ - u8 integrity_algorithm__key_version; /* MAKE_BYTE(integ_alg, key_ver) */ - u8 security_method; - u8 reserved1; -/*04*/ struct osd_timestamp expiration_time; -/*10*/ u8 audit[20]; -/*30*/ u8 discriminator[12]; -/*42*/ struct osd_timestamp object_created_time; -/*48*/ u8 object_type; -/*49*/ u8 permissions_bit_mask[5]; -/*54*/ u8 reserved2; -/*55*/ u8 object_descriptor_type; /* high nibble */ -} __packed; - -/*56 v1*/ -struct osdv1_cap_object_descriptor { - union { - struct { -/*56*/ __be32 policy_access_tag; -/*60*/ __be64 allowed_partition_id; -/*68*/ __be64 allowed_object_id; -/*76*/ __be32 reserved; - } __packed obj_desc; - -/*56*/ u8 object_descriptor[24]; - }; -} __packed; -/*80 v1*/ - -/*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; -} __packed; - -/** - * osd_sec_set_caps - set cap-bits into the capabilities header - * - * @cap: The osd_capability_head to set cap bits to. - * @bit_mask: Use an ORed list of enum osd_capability_bit_masks values - * - * permissions_bit_mask is unaligned use below to set into caps - * in a version independent way - */ -static inline void osd_sec_set_caps(struct osd_capability_head *cap, - u16 bit_mask) -{ - /* - *Note: The bits above are defined LE order this is because this way - * they can grow in the future to more then 16, and still retain - * there constant values. - */ - put_unaligned_le16(bit_mask, &cap->permissions_bit_mask); -} - -/* osd2r05a sec 5.3: CDB continuation segment formats */ -enum osd_continuation_segment_format { - CDB_CONTINUATION_FORMAT_V2 = 0x01, -}; - -struct osd_continuation_segment_header { - u8 format; - u8 reserved1; - __be16 service_action; - __be32 reserved2; - u8 integrity_check[OSDv2_CRYPTO_KEYID_SIZE]; -} __packed; - -/* osd2r05a sec 5.4.1: CDB continuation descriptors */ -enum osd_continuation_descriptor_type { - NO_MORE_DESCRIPTORS = 0x0000, - SCATTER_GATHER_LIST = 0x0001, - QUERY_LIST = 0x0002, - USER_OBJECT = 0x0003, - COPY_USER_OBJECT_SOURCE = 0x0101, - EXTENSION_CAPABILITIES = 0xFFEE -}; - -struct osd_continuation_descriptor_header { - __be16 type; - u8 reserved; - u8 pad_length; - __be32 length; -} __packed; - - -/* osd2r05a sec 5.4.2: Scatter/gather list */ -struct osd_sg_list_entry { - __be64 offset; - __be64 len; -}; - -struct osd_sg_continuation_descriptor { - struct osd_continuation_descriptor_header hdr; - struct osd_sg_list_entry entries[]; -}; - -#endif /* ndef __OSD_PROTOCOL_H__ */ |