diff options
Diffstat (limited to 'drivers/scsi/osst.h')
-rw-r--r-- | drivers/scsi/osst.h | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/drivers/scsi/osst.h b/drivers/scsi/osst.h deleted file mode 100644 index b90ae280853d..000000000000 --- a/drivers/scsi/osst.h +++ /dev/null @@ -1,651 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * $Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $ - */ - -#include <asm/byteorder.h> -#include <linux/completion.h> -#include <linux/mutex.h> - -/* FIXME - rename and use the following two types or delete them! - * and the types really should go to st.h anyway... - * INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C) - */ -typedef struct { - unsigned device_type :5; /* Peripheral Device Type */ - unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */ - unsigned reserved1_6t0 :7; /* Reserved */ - unsigned rmb :1; /* Removable Medium Bit */ - unsigned ansi_version :3; /* ANSI Version */ - unsigned ecma_version :3; /* ECMA Version */ - unsigned iso_version :2; /* ISO Version */ - unsigned response_format :4; /* Response Data Format */ - unsigned reserved3_45 :2; /* Reserved */ - unsigned reserved3_6 :1; /* TrmIOP - Reserved */ - unsigned reserved3_7 :1; /* AENC - Reserved */ - u8 additional_length; /* Additional Length (total_length-4) */ - u8 rsv5, rsv6, rsv7; /* Reserved */ - u8 vendor_id[8]; /* Vendor Identification */ - u8 product_id[16]; /* Product Identification */ - u8 revision_level[4]; /* Revision Level */ - u8 vendor_specific[20]; /* Vendor Specific - Optional */ - u8 reserved56t95[40]; /* Reserved - Optional */ - /* Additional information may be returned */ -} idetape_inquiry_result_t; - -/* - * READ POSITION packet command - Data Format (From Table 6-57) - */ -typedef struct { - unsigned reserved0_10 :2; /* Reserved */ - unsigned bpu :1; /* Block Position Unknown */ - unsigned reserved0_543 :3; /* Reserved */ - unsigned eop :1; /* End Of Partition */ - unsigned bop :1; /* Beginning Of Partition */ - u8 partition; /* Partition Number */ - u8 reserved2, reserved3; /* Reserved */ - u32 first_block; /* First Block Location */ - u32 last_block; /* Last Block Location (Optional) */ - u8 reserved12; /* Reserved */ - u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */ - u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */ -} idetape_read_position_result_t; - -/* - * Follows structures which are related to the SELECT SENSE / MODE SENSE - * packet commands. - */ -#define COMPRESSION_PAGE 0x0f -#define COMPRESSION_PAGE_LENGTH 16 - -#define CAPABILITIES_PAGE 0x2a -#define CAPABILITIES_PAGE_LENGTH 20 - -#define TAPE_PARAMTR_PAGE 0x2b -#define TAPE_PARAMTR_PAGE_LENGTH 16 - -#define NUMBER_RETRIES_PAGE 0x2f -#define NUMBER_RETRIES_PAGE_LENGTH 4 - -#define BLOCK_SIZE_PAGE 0x30 -#define BLOCK_SIZE_PAGE_LENGTH 4 - -#define BUFFER_FILLING_PAGE 0x33 -#define BUFFER_FILLING_PAGE_LENGTH 4 - -#define VENDOR_IDENT_PAGE 0x36 -#define VENDOR_IDENT_PAGE_LENGTH 8 - -#define LOCATE_STATUS_PAGE 0x37 -#define LOCATE_STATUS_PAGE_LENGTH 0 - -#define MODE_HEADER_LENGTH 4 - - -/* - * REQUEST SENSE packet command result - Data Format. - */ -typedef struct { - unsigned error_code :7; /* Current of deferred errors */ - unsigned valid :1; /* The information field conforms to QIC-157C */ - u8 reserved1 :8; /* Segment Number - Reserved */ - unsigned sense_key :4; /* Sense Key */ - unsigned reserved2_4 :1; /* Reserved */ - unsigned ili :1; /* Incorrect Length Indicator */ - unsigned eom :1; /* End Of Medium */ - unsigned filemark :1; /* Filemark */ - u32 information __attribute__ ((packed)); - u8 asl; /* Additional sense length (n-7) */ - u32 command_specific; /* Additional command specific information */ - u8 asc; /* Additional Sense Code */ - u8 ascq; /* Additional Sense Code Qualifier */ - u8 replaceable_unit_code; /* Field Replaceable Unit Code */ - unsigned sk_specific1 :7; /* Sense Key Specific */ - unsigned sksv :1; /* Sense Key Specific information is valid */ - u8 sk_specific2; /* Sense Key Specific */ - u8 sk_specific3; /* Sense Key Specific */ - u8 pad[2]; /* Padding to 20 bytes */ -} idetape_request_sense_result_t; - -/* - * Mode Parameter Header for the MODE SENSE packet command - */ -typedef struct { - u8 mode_data_length; /* Length of the following data transfer */ - u8 medium_type; /* Medium Type */ - u8 dsp; /* Device Specific Parameter */ - u8 bdl; /* Block Descriptor Length */ -} osst_mode_parameter_header_t; - -/* - * Mode Parameter Block Descriptor the MODE SENSE packet command - * - * Support for block descriptors is optional. - */ -typedef struct { - u8 density_code; /* Medium density code */ - u8 blocks[3]; /* Number of blocks */ - u8 reserved4; /* Reserved */ - u8 length[3]; /* Block Length */ -} osst_parameter_block_descriptor_t; - -/* - * The Data Compression Page, as returned by the MODE SENSE packet command. - */ -typedef struct { -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned ps :1; - unsigned reserved0 :1; /* Reserved */ - unsigned page_code :6; /* Page Code - Should be 0xf */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned page_code :6; /* Page Code - Should be 0xf */ - unsigned reserved0 :1; /* Reserved */ - unsigned ps :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 page_length; /* Page Length - Should be 14 */ -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned dce :1; /* Data Compression Enable */ - unsigned dcc :1; /* Data Compression Capable */ - unsigned reserved2 :6; /* Reserved */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned reserved2 :6; /* Reserved */ - unsigned dcc :1; /* Data Compression Capable */ - unsigned dce :1; /* Data Compression Enable */ -#else -#error "Please fix <asm/byteorder.h>" -#endif -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned dde :1; /* Data Decompression Enable */ - unsigned red :2; /* Report Exception on Decompression */ - unsigned reserved3 :5; /* Reserved */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned reserved3 :5; /* Reserved */ - unsigned red :2; /* Report Exception on Decompression */ - unsigned dde :1; /* Data Decompression Enable */ -#else -#error "Please fix <asm/byteorder.h>" -#endif - u32 ca; /* Compression Algorithm */ - u32 da; /* Decompression Algorithm */ - u8 reserved[4]; /* Reserved */ -} osst_data_compression_page_t; - -/* - * The Medium Partition Page, as returned by the MODE SENSE packet command. - */ -typedef struct { -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned ps :1; - unsigned reserved1_6 :1; /* Reserved */ - unsigned page_code :6; /* Page Code - Should be 0x11 */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned page_code :6; /* Page Code - Should be 0x11 */ - unsigned reserved1_6 :1; /* Reserved */ - unsigned ps :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 page_length; /* Page Length - Should be 6 */ - u8 map; /* Maximum Additional Partitions - Should be 0 */ - u8 apd; /* Additional Partitions Defined - Should be 0 */ -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned fdp :1; /* Fixed Data Partitions */ - unsigned sdp :1; /* Should be 0 */ - unsigned idp :1; /* Should be 0 */ - unsigned psum :2; /* Should be 0 */ - unsigned reserved4_012 :3; /* Reserved */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned reserved4_012 :3; /* Reserved */ - unsigned psum :2; /* Should be 0 */ - unsigned idp :1; /* Should be 0 */ - unsigned sdp :1; /* Should be 0 */ - unsigned fdp :1; /* Fixed Data Partitions */ -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 mfr; /* Medium Format Recognition */ - u8 reserved[2]; /* Reserved */ -} osst_medium_partition_page_t; - -/* - * Capabilities and Mechanical Status Page - */ -typedef struct { -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved1_67 :2; - unsigned page_code :6; /* Page code - Should be 0x2a */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned page_code :6; /* Page code - Should be 0x2a */ - unsigned reserved1_67 :2; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 page_length; /* Page Length - Should be 0x12 */ - u8 reserved2, reserved3; -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved4_67 :2; - unsigned sprev :1; /* Supports SPACE in the reverse direction */ - unsigned reserved4_1234 :4; - unsigned ro :1; /* Read Only Mode */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned ro :1; /* Read Only Mode */ - unsigned reserved4_1234 :4; - unsigned sprev :1; /* Supports SPACE in the reverse direction */ - unsigned reserved4_67 :2; -#else -#error "Please fix <asm/byteorder.h>" -#endif -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved5_67 :2; - unsigned qfa :1; /* Supports the QFA two partition formats */ - unsigned reserved5_4 :1; - unsigned efmt :1; /* Supports ERASE command initiated formatting */ - unsigned reserved5_012 :3; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned reserved5_012 :3; - unsigned efmt :1; /* Supports ERASE command initiated formatting */ - unsigned reserved5_4 :1; - unsigned qfa :1; /* Supports the QFA two partition formats */ - unsigned reserved5_67 :2; -#else -#error "Please fix <asm/byteorder.h>" -#endif -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned cmprs :1; /* Supports data compression */ - unsigned ecc :1; /* Supports error correction */ - unsigned reserved6_45 :2; /* Reserved */ - unsigned eject :1; /* The device can eject the volume */ - unsigned prevent :1; /* The device defaults in the prevent state after power up */ - unsigned locked :1; /* The volume is locked */ - unsigned lock :1; /* Supports locking the volume */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned lock :1; /* Supports locking the volume */ - unsigned locked :1; /* The volume is locked */ - unsigned prevent :1; /* The device defaults in the prevent state after power up */ - unsigned eject :1; /* The device can eject the volume */ - unsigned reserved6_45 :2; /* Reserved */ - unsigned ecc :1; /* Supports error correction */ - unsigned cmprs :1; /* Supports data compression */ -#else -#error "Please fix <asm/byteorder.h>" -#endif -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ - /* transfers for slow buffer memory ??? */ - /* Also 32768 block size in some cases */ - unsigned reserved7_3_6 :4; - unsigned blk1024 :1; /* Supports 1024 bytes block size */ - unsigned blk512 :1; /* Supports 512 bytes block size */ - unsigned reserved7_0 :1; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned reserved7_0 :1; - unsigned blk512 :1; /* Supports 512 bytes block size */ - unsigned blk1024 :1; /* Supports 1024 bytes block size */ - unsigned reserved7_3_6 :4; - unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ - /* transfers for slow buffer memory ??? */ - /* Also 32768 block size in some cases */ -#else -#error "Please fix <asm/byteorder.h>" -#endif - __be16 max_speed; /* Maximum speed supported in KBps */ - u8 reserved10, reserved11; - __be16 ctl; /* Continuous Transfer Limit in blocks */ - __be16 speed; /* Current Speed, in KBps */ - __be16 buffer_size; /* Buffer Size, in 512 bytes */ - u8 reserved18, reserved19; -} osst_capabilities_page_t; - -/* - * Block Size Page - */ -typedef struct { -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned ps :1; - unsigned reserved1_6 :1; - unsigned page_code :6; /* Page code - Should be 0x30 */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned page_code :6; /* Page code - Should be 0x30 */ - unsigned reserved1_6 :1; - unsigned ps :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 page_length; /* Page Length - Should be 2 */ - u8 reserved2; -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned one :1; - unsigned reserved2_6 :1; - unsigned record32_5 :1; - unsigned record32 :1; - unsigned reserved2_23 :2; - unsigned play32_5 :1; - unsigned play32 :1; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned play32 :1; - unsigned play32_5 :1; - unsigned reserved2_23 :2; - unsigned record32 :1; - unsigned record32_5 :1; - unsigned reserved2_6 :1; - unsigned one :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif -} osst_block_size_page_t; - -/* - * Tape Parameters Page - */ -typedef struct { -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned ps :1; - unsigned reserved1_6 :1; - unsigned page_code :6; /* Page code - Should be 0x2b */ -#elif defined(__LITTLE_ENDIAN_BITFIELD) - unsigned page_code :6; /* Page code - Should be 0x2b */ - unsigned reserved1_6 :1; - unsigned ps :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 reserved2; - u8 density; - u8 reserved3,reserved4; - __be16 segtrk; - __be16 trks; - u8 reserved5,reserved6,reserved7,reserved8,reserved9,reserved10; -} osst_tape_paramtr_page_t; - -/* OnStream definitions */ - -#define OS_CONFIG_PARTITION (0xff) -#define OS_DATA_PARTITION (0) -#define OS_PARTITION_VERSION (1) - -/* - * partition - */ -typedef struct os_partition_s { - __u8 partition_num; - __u8 par_desc_ver; - __be16 wrt_pass_cntr; - __be32 first_frame_ppos; - __be32 last_frame_ppos; - __be32 eod_frame_ppos; -} os_partition_t; - -/* - * DAT entry - */ -typedef struct os_dat_entry_s { - __be32 blk_sz; - __be16 blk_cnt; - __u8 flags; - __u8 reserved; -} os_dat_entry_t; - -/* - * DAT - */ -#define OS_DAT_FLAGS_DATA (0xc) -#define OS_DAT_FLAGS_MARK (0x1) - -typedef struct os_dat_s { - __u8 dat_sz; - __u8 reserved1; - __u8 entry_cnt; - __u8 reserved3; - os_dat_entry_t dat_list[16]; -} os_dat_t; - -/* - * Frame types - */ -#define OS_FRAME_TYPE_FILL (0) -#define OS_FRAME_TYPE_EOD (1 << 0) -#define OS_FRAME_TYPE_MARKER (1 << 1) -#define OS_FRAME_TYPE_HEADER (1 << 3) -#define OS_FRAME_TYPE_DATA (1 << 7) - -/* - * AUX - */ -typedef struct os_aux_s { - __be32 format_id; /* hardware compatibility AUX is based on */ - char application_sig[4]; /* driver used to write this media */ - __be32 hdwr; /* reserved */ - __be32 update_frame_cntr; /* for configuration frame */ - __u8 frame_type; - __u8 frame_type_reserved; - __u8 reserved_18_19[2]; - os_partition_t partition; - __u8 reserved_36_43[8]; - __be32 frame_seq_num; - __be32 logical_blk_num_high; - __be32 logical_blk_num; - os_dat_t dat; - __u8 reserved188_191[4]; - __be32 filemark_cnt; - __be32 phys_fm; - __be32 last_mark_ppos; - __u8 reserved204_223[20]; - - /* - * __u8 app_specific[32]; - * - * Linux specific fields: - */ - __be32 next_mark_ppos; /* when known, points to next marker */ - __be32 last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ - __u8 linux_specific[24]; - - __u8 reserved_256_511[256]; -} os_aux_t; - -#define OS_FM_TAB_MAX 1024 - -typedef struct os_fm_tab_s { - __u8 fm_part_num; - __u8 reserved_1; - __u8 fm_tab_ent_sz; - __u8 reserved_3; - __be16 fm_tab_ent_cnt; - __u8 reserved6_15[10]; - __be32 fm_tab_ent[OS_FM_TAB_MAX]; -} os_fm_tab_t; - -typedef struct os_ext_trk_ey_s { - __u8 et_part_num; - __u8 fmt; - __be16 fm_tab_off; - __u8 reserved4_7[4]; - __be32 last_hlb_hi; - __be32 last_hlb; - __be32 last_pp; - __u8 reserved20_31[12]; -} os_ext_trk_ey_t; - -typedef struct os_ext_trk_tb_s { - __u8 nr_stream_part; - __u8 reserved_1; - __u8 et_ent_sz; - __u8 reserved3_15[13]; - os_ext_trk_ey_t dat_ext_trk_ey; - os_ext_trk_ey_t qfa_ext_trk_ey; -} os_ext_trk_tb_t; - -typedef struct os_header_s { - char ident_str[8]; - __u8 major_rev; - __u8 minor_rev; - __be16 ext_trk_tb_off; - __u8 reserved12_15[4]; - __u8 pt_par_num; - __u8 pt_reserved1_3[3]; - os_partition_t partition[16]; - __be32 cfg_col_width; - __be32 dat_col_width; - __be32 qfa_col_width; - __u8 cartridge[16]; - __u8 reserved304_511[208]; - __be32 old_filemark_list[16680/4]; /* in ADR 1.4 __u8 track_table[16680] */ - os_ext_trk_tb_t ext_track_tb; - __u8 reserved17272_17735[464]; - os_fm_tab_t dat_fm_tab; - os_fm_tab_t qfa_fm_tab; - __u8 reserved25960_32767[6808]; -} os_header_t; - - -/* - * OnStream ADRL frame - */ -#define OS_FRAME_SIZE (32 * 1024 + 512) -#define OS_DATA_SIZE (32 * 1024) -#define OS_AUX_SIZE (512) -//#define OSST_MAX_SG 2 - -/* The OnStream tape buffer descriptor. */ -struct osst_buffer { - unsigned char in_use; - unsigned char dma; /* DMA-able buffer */ - int buffer_size; - int buffer_blocks; - int buffer_bytes; - int read_pointer; - int writing; - int midlevel_result; - int syscall_result; - struct osst_request *last_SRpnt; - struct st_cmdstatus cmdstat; - struct rq_map_data map_data; - unsigned char *b_data; - os_aux_t *aux; /* onstream AUX structure at end of each block */ - unsigned short use_sg; /* zero or number of s/g segments for this adapter */ - unsigned short sg_segs; /* number of segments in s/g list */ - unsigned short orig_sg_segs; /* number of segments allocated at first try */ - struct scatterlist sg[1]; /* MUST BE last item */ -} ; - -/* The OnStream tape drive descriptor */ -struct osst_tape { - struct scsi_driver *driver; - unsigned capacity; - struct scsi_device *device; - struct mutex lock; /* for serialization */ - struct completion wait; /* for SCSI commands */ - struct osst_buffer * buffer; - - /* Drive characteristics */ - unsigned char omit_blklims; - unsigned char do_auto_lock; - unsigned char can_bsr; - unsigned char can_partitions; - unsigned char two_fm; - unsigned char fast_mteom; - unsigned char restr_dma; - unsigned char scsi2_logical; - unsigned char default_drvbuffer; /* 0xff = don't touch, value 3 bits */ - unsigned char pos_unknown; /* after reset position unknown */ - int write_threshold; - int timeout; /* timeout for normal commands */ - int long_timeout; /* timeout for commands known to take long time*/ - - /* Mode characteristics */ - struct st_modedef modes[ST_NBR_MODES]; - int current_mode; - - /* Status variables */ - int partition; - int new_partition; - int nbr_partitions; /* zero until partition support enabled */ - struct st_partstat ps[ST_NBR_PARTITIONS]; - unsigned char dirty; - unsigned char ready; - unsigned char write_prot; - unsigned char drv_write_prot; - unsigned char in_use; - unsigned char blksize_changed; - unsigned char density_changed; - unsigned char compression_changed; - unsigned char drv_buffer; - unsigned char density; - unsigned char door_locked; - unsigned char rew_at_close; - unsigned char inited; - int block_size; - int min_block; - int max_block; - int recover_count; /* from tape opening */ - int abort_count; - int write_count; - int read_count; - int recover_erreg; /* from last status call */ - /* - * OnStream specific data - */ - int os_fw_rev; /* the firmware revision * 10000 */ - unsigned char raw; /* flag OnStream raw access (32.5KB block size) */ - unsigned char poll; /* flag that this drive needs polling (IDE|firmware) */ - unsigned char frame_in_buffer; /* flag that the frame as per frame_seq_number - * has been read into STp->buffer and is valid */ - int frame_seq_number; /* logical frame number */ - int logical_blk_num; /* logical block number */ - unsigned first_frame_position; /* physical frame to be transferred to/from host */ - unsigned last_frame_position; /* physical frame to be transferd to/from tape */ - int cur_frames; /* current number of frames in internal buffer */ - int max_frames; /* max number of frames in internal buffer */ - char application_sig[5]; /* application signature */ - unsigned char fast_open; /* flag that reminds us we didn't check headers at open */ - unsigned short wrt_pass_cntr; /* write pass counter */ - int update_frame_cntr; /* update frame counter */ - int onstream_write_error; /* write error recovery active */ - int header_ok; /* header frame verified ok */ - int linux_media; /* reading linux-specifc media */ - int linux_media_version; - os_header_t * header_cache; /* cache is kept for filemark positions */ - int filemark_cnt; - int first_mark_ppos; - int last_mark_ppos; - int last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ - int first_data_ppos; - int eod_frame_ppos; - int eod_frame_lfa; - int write_type; /* used in write error recovery */ - int read_error_frame; /* used in read error recovery */ - unsigned long cmd_start_time; - unsigned long max_cmd_time; - -#if DEBUG - unsigned char write_pending; - int nbr_finished; - int nbr_waits; - unsigned char last_cmnd[6]; - unsigned char last_sense[16]; -#endif - struct gendisk *drive; -} ; - -/* scsi tape command */ -struct osst_request { - unsigned char cmd[MAX_COMMAND_SIZE]; - unsigned char sense[SCSI_SENSE_BUFFERSIZE]; - int result; - struct osst_tape *stp; - struct completion *waiting; - struct bio *bio; -}; - -/* Values of write_type */ -#define OS_WRITE_DATA 0 -#define OS_WRITE_EOD 1 -#define OS_WRITE_NEW_MARK 2 -#define OS_WRITE_LAST_MARK 3 -#define OS_WRITE_HEADER 4 -#define OS_WRITE_FILLER 5 - -/* Additional rw state */ -#define OS_WRITING_COMPLETE 3 |