/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_SCSI_TARGETS_STDEF_H #define _SYS_SCSI_TARGETS_STDEF_H #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif /* * Defines for SCSI tape drives. */ /* * Maximum variable length record size for a single request */ #define ST_MAXRECSIZE_VARIABLE 65535 /* * If the requested record size exceeds ST_MAXRECSIZE_VARIABLE, * then the following define is used. */ #define ST_MAXRECSIZE_VARIABLE_LIMIT 65534 #define ST_MAXRECSIZE_FIXED (63<<10) /* maximum fixed record size */ #define INF 1000000000 /* * Supported tape device types plus default type for opening. * Types 10 - 13, are special (ancient too) drives - *NOT SUPPORTED* * Types 14 - 1f, are 1/4-inch cartridge drives. * Types 20 - 28, are 1/2-inch cartridge or reel drives. * Types 28+, are rdat (vcr) drives. */ #define ST_TYPE_INVALID 0x00 #define ST_TYPE_SYSGEN1 MT_ISSYSGEN11 /* Sysgen with QIC-11 only */ #define ST_TYPE_SYSGEN MT_ISSYSGEN /* Sysgen with QIC-24 and QIC-11 */ #define ST_TYPE_DEFAULT MT_ISDEFAULT /* Generic 1/4" or undetermined */ #define ST_TYPE_EMULEX MT_ISMT02 /* Emulex MT-02 */ #define ST_TYPE_ARCHIVE MT_ISVIPER1 /* Archive QIC-150 */ #define ST_TYPE_WANGTEK MT_ISWANGTEK1 /* Wangtek QIC-150 */ #define ST_TYPE_CDC MT_ISCDC /* CDC - (not tested) */ #define ST_TYPE_FUJI MT_ISFUJI /* Fujitsu - (not tested) */ #define ST_TYPE_KENNEDY MT_ISKENNEDY /* Kennedy */ #define ST_TYPE_ANRITSU MT_ISANRITSU /* Anritsu */ #define ST_TYPE_HP MT_ISHP /* HP */ #define ST_TYPE_HIC MT_ISCCS23 /* Generic 1/2" Cartridge */ #define ST_TYPE_REEL MT_ISCCS24 /* Generic 1/2" Reel Tape */ #define ST_TYPE_DAT MT_ISCCS28 /* Generic DAT Tape */ #define ST_TYPE_EXABYTE MT_ISEXABYTE /* Exabyte 8200 */ #define ST_TYPE_EXB8500 MT_ISEXB8500 /* Exabyte 8500 */ #define ST_TYPE_WANGTHS MT_ISWANGTHS /* Wangtek 6130HS */ #define ST_TYPE_WANGDAT MT_ISWANGDAT /* WangDAT */ #define ST_TYPE_PYTHON MT_ISPYTHON /* Archive Python DAT */ #define ST_TYPE_STC3490 MT_ISSTC /* IBM STC 3490 */ #define ST_TYPE_TAND25G MT_ISTAND25G /* TANDBERG 2.5G */ #define ST_TYPE_DLT MT_ISDLT /* DLT */ #define ST_TYPE_STK9840 MT_ISSTK9840 /* StorageTek 9840, 9940, 9840B */ #define ST_TYPE_BMDLT1 MT_ISBMDLT1 /* Benchmark DTL1 */ #define ST_TYPE_LTO MT_LTO /* sun: LTO's by HP, Seagate, IBM.. */ #define ST_LAST_TYPE ST_TYPE_LTO /* Add new above type and change this */ /* Internal flags */ #define ST_DYNAMIC 0x2000 /* Device name has been dynamically */ /* alloc'ed from the st.conf entry, */ /* instead of being used from the */ /* st_drivetypes array. */ /* * Defines for supported drive options * * WARNING : THESE OPTIONS SHOULD NEVER BE CHANGED, AS OLDER CONFIGURATIONS * WILL DEPEND ON THE FLAG VALUES REMAINING THE SAME */ #define ST_VARIABLE 0x001 /* Device supports variable */ /* length record sizes */ #define ST_QIC 0x002 /* QIC tape device */ #define ST_REEL 0x004 /* 1/2-inch reel tape device */ #define ST_BSF 0x008 /* Device supports backspace */ /* file as in mt(1) bsf : */ /* backspace over EOF marks. */ /* Devices not supporting bsf */ /* will fail with ENOTTY upon */ /* use of bsf */ #define ST_BSR 0x010 /* Device supports backspace */ /* record as in mt(1) bsr : */ /* backspace over records. If */ /* the device does not support */ /* bsr, the st driver emulates */ /* the action by rewinding the */ /* tape and using forward space */ /* file (fsf) to the correct */ /* file and then uses forward */ /* space record (fsr) to the */ /* correct record */ #define ST_LONG_ERASE 0x020 /* Device needs a longer time */ /* than normal to erase */ #define ST_AUTODEN_OVERRIDE 0x040 /* Auto-Density override flag */ /* Device can figure out the */ /* tape density automatically, */ /* without issuing a */ /* mode-select/mode-sense */ #define ST_NOBUF 0x080 /* Don't use buffered mode. */ /* This disables the device's */ /* ability for buffered writes */ /* I.e. The device acknowledges */ /* write completion after the */ /* data is written to the */ /* device's buffer, but before */ /* all the data is actually */ /* written to tape */ #define ST_RESERVED_BIT1 0x100 /* resreved bit */ /* parity while talking to it. */ #define ST_KNOWS_EOD 0x200 /* Device knows when EOD (End */ /* of Data) has been reached. */ /* If the device knows EOD, st */ /* uses fast file skipping. */ /* If it does not know EOD, */ /* file skipping happens one */ /* file at a time. */ #define ST_UNLOADABLE 0x400 /* Device will not complain if */ /* the st driver is unloaded & */ /* loaded again; e.g. will */ /* return the correct inquiry */ /* string */ #define ST_SOFT_ERROR_REPORTING 0x800 /* Do request or log sense on */ /* close to report soft errors. */ /* Currently only Exabyte and */ /* DAT drives support this */ /* feature. */ #define ST_LONG_TIMEOUTS 0x1000 /* Device needs 5 times longer */ /* timeouts for normal */ /* operation */ #define ST_BUFFERED_WRITES 0x4000 /* The data is buffered in the */ /* driver and pre-acked to the */ /* application */ #define ST_NO_RECSIZE_LIMIT 0x8000 /* For variable record size */ /* devices only. If flag is */ /* set, then don't limit */ /* record size to 64k as in */ /* pre-Solaris 2.4 releases. */ /* The only limit on the */ /* record size will be the max */ /* record size the device can */ /* handle or the max DMA */ /* transfer size of the */ /* machine, which ever is */ /* smaller. Beware of */ /* incompatabilities with */ /* tapes of pre-Solaris 2.4 */ /* OS's written with large */ /* (>64k) block sizes, as */ /* their true block size is */ /* a max of approx 64k */ #define ST_MODE_SEL_COMP 0x10000 /* use mode select of device */ /* configuration page (0x10) to */ /* enable/disable compression */ /* instead of density codes for */ /* the "c" and "u" devices */ #define ST_NO_RESERVE_RELEASE 0x20000 /* For devices which do not */ /* support RESERVE/RELEASE SCSI */ /* command. If this is enabled */ /* then reserve/release would */ /* not be used during open/ */ /* close for High Availability */ #define ST_READ_IGNORE_ILI 0x40000 /* This flag is only applicable */ /* to variable block devices */ /* which support the SILI bit */ /* option. It indicates that */ /* the SILI bit will be ignored */ /* during reads */ #define ST_READ_IGNORE_EOFS 0x80000 /* When this flag is set two */ /* EOF marks do not indicate an */ /* EOM. This option is only */ /* supported on 1/2" reel tapes */ #define ST_SHORT_FILEMARKS 0x100000 /* This option applies only to */ /* EXABYTE 8mm tape drives */ /* which support short */ /* filemarks. When this flag */ /* is set, short filemarks */ /* will be used for writing */ /* filemarks. */ #define ST_EJECT_ON_CHANGER_FAILURE 0x200000 /* When this flag is set */ /* and the tape is trapped in */ /* the medium changer, the tape */ /* is automatically ejected */ #define ST_RETRY_ON_RECOVERED_DEFERRED_ERROR 0x400000 /* This option applies only to */ /* IBM MAGSTAR 3590. If this */ /* flag is set, the st driver */ /* will retry the last cmd if */ /* the last error cause a check */ /* condition with error code */ /* 0x71 and sense code 0x01 */ #define ST_KNOWS_MEDIA 0x800000 /* Use configured media type */ /* detected to select correct */ /* density code. */ #define ST_CLN_TYPE_1 0x10000000 /* When this flag is set, */ /* the tape drive provides the */ /* clean bit information in */ /* byte 21, bitmask 0x08 of */ /* Request Sense data */ #define ST_CLN_TYPE_2 0x20000000 /* When this flag is set, */ /* the tape drive provides the */ /* clean bit information in */ /* byte 70, bitmask 0xc0 of */ /* Request Sense data */ #define ST_CLN_TYPE_3 0x40000000 /* When this flag is set, */ /* the tape drive provides the */ /* clean bit information in */ /* byte 18, bitmask 0x01 of */ /* Request Sense data */ #define ST_CLN_MASK (ST_CLN_TYPE_1 | ST_CLN_TYPE_2 | ST_CLN_TYPE_3) #define ST_VALID_OPTS (ST_VARIABLE | ST_QIC | ST_REEL | ST_BSF | ST_BSR |\ ST_LONG_ERASE | ST_AUTODEN_OVERRIDE | ST_NOBUF | ST_KNOWS_EOD |\ ST_UNLOADABLE | ST_SOFT_ERROR_REPORTING | ST_LONG_TIMEOUTS |\ ST_NO_RECSIZE_LIMIT | ST_MODE_SEL_COMP | ST_NO_RESERVE_RELEASE |\ ST_READ_IGNORE_ILI | ST_READ_IGNORE_EOFS | ST_SHORT_FILEMARKS |\ ST_EJECT_ON_CHANGER_FAILURE | ST_RETRY_ON_RECOVERED_DEFERRED_ERROR |\ ST_CLN_TYPE_1 | ST_CLN_TYPE_2 | ST_CLN_TYPE_3) #define NDENSITIES MT_NDENSITIES #define NSPEEDS MT_NSPEEDS /* * defines for Log Sense Pages */ #define SUPPORTED_LOG_PAGES_PAGE 0x00 #define TAPE_SEQUENTIAL_PAGE 0x0c #define TAPE_ALERT_PAGE 0x2e /* * Log Page Control definitions */ #define CURRENT_THRESHOLD_VALUES 0x00 #define CURRENT_CUMULATIVE_VALUES 0x40 #define DEFAULT_THRESHOLD_VALUES 0x80 #define DEFAULT_CUMULATIVE_VALUES 0xC0 /* * Tape Alert Flag definitions */ #define CLEANING_MEDIA 11 #define CLEAN_NOW 20 #define CLEAN_PERIODIC 21 #define CLEAN_FOR_ERRORS 24 #define TAPE_ALERT_SUPPORT_UNKNOWN 0x00 #define TAPE_ALERT_NOT_SUPPORTED 0x01 #define TAPE_ALERT_SUPPORTED 0x02 #define TAPE_ALERT_STILL_DIRTY 0x04 #define TAPE_SEQUENTIAL_SUPPORTED 0x08 #define TAPE_PREVIOUSLY_DIRTY 0x10 #define TAPE_ALERT_MAX_PARA 64 #define TAPE_SEQUENTIAL_PAGE_PARA 64 /* way more then really used */ #define SEQUENTIAL_NEED_CLN 0x0100 /* * Parameters */ #define ST_NAMESIZE 44 /* size of pretty string for vid/pid */ #define VIDLEN 8 /* size of vendor identifier length */ #define PIDLEN 16 /* size of product identifier length */ #define VIDPIDLEN (VIDLEN + PIDLEN) struct st_drivetype { char name[ST_NAMESIZE]; /* Name, for debug */ char length; /* Length of vendor id */ char vid[VIDPIDLEN]; /* Vendor id and model (product) id */ char type; /* Drive type for driver */ int bsize; /* Block size */ int options; /* Drive options */ int max_rretries; /* Max read retries */ int max_wretries; /* Max write retries */ uchar_t densities[NDENSITIES]; /* density codes, low->hi */ uchar_t default_density; /* default density for this drive */ uchar_t mediatype[NDENSITIES]; /* was speed. mediatype for density. */ ushort_t non_motion_timeout; /* Inquiry type commands */ ushort_t io_timeout; /* I/O timeout in seconds */ ushort_t rewind_timeout; /* rewind timeout in seconds */ ushort_t space_timeout; /* space cmd timeout in seconds */ ushort_t load_timeout; /* load tape time in seconds */ ushort_t unload_timeout; /* unload tape time in seconds */ ushort_t erase_timeout; /* erase timeout. seconds */ }; #define MINUTES(val) ((val) * 60) struct comp_mode_page { #if defined(_BIT_FIELDS_LTOH) uchar_t : 6, dcc: 1, /* Data Compression Capable */ dce: 1; /* Data Compression Enable */ uchar_t : 5, red: 2, /* Report Exceptions on Decompress */ dde: 1; /* Data Decompression Enabled */ uchar_t comp_alg_msb; /* Compression Algorithm */ uchar_t comp_alg_high; uchar_t comp_alg_low; uchar_t comp_alg_lsb; uchar_t decomp_alg_msb; /* Decompression Algorithm */ uchar_t decomp_alg_high; uchar_t decomp_alg_low; uchar_t decomp_alg_lsb; uchar_t reservered0; uchar_t reservered1; uchar_t reservered2; uchar_t reservered3; #elif defined(_BIT_FIELDS_HTOL) uchar_t dce: 1, /* Data Compression Enable */ dcc: 1, /* Data Compression Capable */ : 6; uchar_t dde: 1, /* Data Decompression Enabled */ red: 2, /* Report Exceptions on Decompress */ : 5; uchar_t comp_alg_msb; /* Compression Algorithm */ uchar_t comp_alg_high; uchar_t comp_alg_low; uchar_t comp_alg_lsb; uchar_t decomp_alg_msb; /* Decompression Algorithm */ uchar_t decomp_alg_high; uchar_t decomp_alg_low; uchar_t decomp_alg_lsb; uchar_t reservered0; uchar_t reservered1; uchar_t reservered2; uchar_t reservered3; #endif }; struct dev_mode_page { #if defined(_BIT_FIELDS_LTOH) uchar_t act_format: 5, /* active format */ caf: 1, /* Change Active Format */ cap: 1, /* Change Active Partition */ : 1; uchar_t act_partition; /* active partition */ uchar_t wrt_buf_full_ratio; /* write buffer full ratio */ uchar_t rd_buf_full_ratio; /* read buffer full ratio */ uchar_t wrt_delay_time_msb; /* write delay time MSB */ uchar_t wrt_delay_time_lsb; /* write delay time LSB */ uchar_t rew: 1, /* Report Early Warning */ rbo: 1, /* Reverse Buffer Order */ socf: 2, /* Stop On Consecutive Filemarks */ avc: 1, /* Automatic Velocity Control */ rsmk: 1, /* Report SetMarKs */ bis: 1, /* Block Ids Supported */ dbr: 1; /* Data Buffer Recovery */ uchar_t gap_size; uchar_t : 3, sew: 1, /* Sync data after Early Warning */ eeg: 1, /* Enable Early Waring */ eod_defined: 3; uchar_t buf_size_leot_msb; /* Buffer size after early warning */ uchar_t buf_size_leot_mid; uchar_t buf_size_leot_lsb; uchar_t comp_alg; /* Compression Algorithm (enable) */ uchar_t reservered; #elif defined(_BIT_FIELDS_HTOL) uchar_t : 1, cap: 1, /* Change Active Partition */ caf: 1, /* Change Active Format */ act_format: 5; /* active format */ uchar_t act_partition; /* active partition */ uchar_t wrt_buf_full_ratio; /* write buffer full ratio */ uchar_t rd_buf_full_ratio; /* read buffer full ratio */ uchar_t wrt_delay_time_msb; /* write delay time MSB */ uchar_t wrt_delay_time_lsb; /* write delay time LSB */ uchar_t dbr: 1, /* Data Buffer Recovery */ bis: 1, /* Block Ids Supported */ rsmk: 1, /* Report SetMarKs */ avc: 1, /* Automatic Velocity Control */ socf: 2, /* Stop On Consecutive Filemarks */ rbo: 1, /* Reverse Buffer Order */ rew: 1; /* Report Early Warning */ uchar_t gap_size; uchar_t eod_defined: 3, eeg: 1, /* Enable Early Waring */ sew: 1, /* Sync data after Early Warning */ : 3; uchar_t buf_size_leot_msb; /* Buffer size after early warning */ uchar_t buf_size_leot_mid; uchar_t buf_size_leot_lsb; uchar_t comp_alg; /* Compression Algorithm (enable) */ uchar_t reservered; #endif }; typedef union { struct comp_mode_page comp; struct dev_mode_page dev; }modepage; /* * * Parameter list for the MODE_SELECT and MODE_SENSE commands. * The parameter list contains a header, followed by zero or more * block descriptors, followed by vendor unique parameters, if any. * */ #define MSIZE 0x0c /* Size without additional pages */ struct seq_mode { #if defined(_BIT_FIELDS_LTOH) uchar_t data_len; /* sense data length, sense only */ uchar_t media_type; /* medium type, sense only */ uchar_t speed :4, /* speed */ bufm :3, /* buffered mode */ wp :1; /* write protected, sense only */ uchar_t bd_len; /* block length in bytes */ uchar_t density; /* density code */ uchar_t high_nb; /* number of logical blocks on the medium */ uchar_t mid_nb; /* that are to be formatted with the density */ uchar_t low_nb; /* code and block length in block descriptor */ uchar_t reserved; /* reserved */ uchar_t high_bl; /* block length */ uchar_t mid_bl; /* " " */ uchar_t low_bl; /* " " */ uchar_t page_code: 6, : 1, ps: 1; /* Page Savable sense only */ uchar_t page_len; modepage page; #elif defined(_BIT_FIELDS_HTOL) uchar_t data_len; /* sense data length, sense only */ uchar_t media_type; /* medium type, sense only */ uchar_t wp :1, /* write protected, sense only */ bufm :3, /* buffered mode */ speed :4; /* speed */ uchar_t bd_len; /* block length in bytes */ uchar_t density; /* density code */ uchar_t high_nb; /* number of logical blocks on the medium */ uchar_t mid_nb; /* that are to be formatted with the density */ uchar_t low_nb; /* code and block length in block descriptor */ uchar_t reserved; /* reserved */ uchar_t high_bl; /* block length */ uchar_t mid_bl; /* " " */ uchar_t low_bl; /* " " */ uchar_t ps: 1, /* Page Savable sense only */ : 1, page_code: 6; uchar_t page_len; modepage page; #else #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined #endif /* _BIT_FIELDS_LTOH */ }; /* * Data returned from the READ BLOCK LIMITS command. */ #define RBLSIZE (sizeof (struct read_blklim)) struct read_blklim { #if defined(_BIT_FIELDS_HTOL) uchar_t reserved: 3; /* reserved */ uchar_t granularity: 5; /* Minimum Modularity */ #elif defined(_BIT_FIELDS_LTOH) uchar_t granularity: 5; /* Minimum Modularity */ uchar_t reserved: 3; /* reserved */ #endif uchar_t max_hi; /* Maximum block length, high byte */ uchar_t max_mid; /* Maximum block length, middle byte */ uchar_t max_lo; /* Maximum block length, low byte */ uchar_t min_hi; /* Minimum block length, high byte */ uchar_t min_lo; /* Minimum block length, low byte */ }; #ifdef _KERNEL #if defined(__i386) || defined(__amd64) /* Data structure used in big block I/O on x86/x64 platform */ /* * alloc more than one contig_mem, so mutiple I/O can be * on-going simultaneously */ #define ST_MAX_CONTIG_MEM_NUM 3 /* * 60K is used due to the limitation(size) of the intermediate buffer * in DMA bind code(rootnex.c), which is 64K. If the I/O buf is page * aligned, HBA can do 64K DMA, but if not, HBA can only do * 64K - PAGESIZE = 60K DMA due to the copy to/from intermediate * buffer will keep the page offset. */ #define ST_BIGBLK_XFER 60 * 1024 struct contig_mem { struct contig_mem *cm_next; size_t cm_len; caddr_t cm_addr; ddi_acc_handle_t cm_acc_hdl; struct buf *cm_bp; int cm_use_sbuf; }; #endif #endif /* _KERNEL */ /* * Private info for scsi tapes. Pointed to by the un_private pointer * of one of the SCSI_DEVICE chains. */ struct scsi_tape { struct scsi_device *un_sd; /* back pointer to SCSI_DEVICE */ struct scsi_pkt *un_rqs; /* ptr to request sense command */ struct scsi_pkt *un_mkr_pkt; /* ptr to marker packet */ kcondvar_t un_sbuf_cv; /* cv on ownership of special buf */ kcondvar_t un_queue_cv; /* cv on all queued commands */ struct buf *un_sbufp; /* for use in special io */ char *un_srqbufp; /* sense buffer for special io */ kcondvar_t un_clscv; /* closing cv */ struct buf *un_quef; /* head of wait queue */ struct buf *un_quel; /* tail of wait queue */ struct buf *un_runqf; /* head of run queue */ struct buf *un_runql; /* tail of run queue */ struct seq_mode *un_mspl; /* ptr to mode select info */ struct st_drivetype *un_dp; /* ptr to drive table entry */ uint_t un_dp_size; /* size of un_dp alloc'ed */ caddr_t un_tmpbuf; /* buf for append, autodens ops */ daddr_t un_blkno; /* block # in file (512 byte blocks) */ int un_oflags; /* open flags */ int un_fileno; /* current file number on tape */ int un_err_fileno; /* file where error occurred */ daddr_t un_err_blkno; /* block in file where err occurred */ uint_t un_err_resid; /* resid from last error */ short un_fmneeded; /* filemarks to be written - HP only */ dev_t un_dev; /* unix device */ uchar_t un_attached; /* unit known && attached */ int un_pwr_mgmt; /* power management state */ uchar_t un_density_known; /* density is known */ uchar_t un_curdens; /* index into density table */ uchar_t un_lastop; /* last I/O was: read/write/ctl */ uchar_t un_eof; /* eof states */ uchar_t un_laststate; /* last state */ uchar_t un_state; /* current state */ uchar_t un_status; /* status from last sense */ uchar_t un_retry_ct; /* retry count */ uchar_t un_tran_retry_ct; /* transport retry count */ uchar_t un_read_only; /* 1 == opened O_RDONLY */ uchar_t un_test_append; /* check writing at end of tape */ uchar_t un_arq_enabled; /* auto request sense enabled */ uchar_t un_untagged_qing; /* hba has untagged quing */ uchar_t un_allow_large_xfer; /* allow >64k xfers if requested */ uchar_t un_sbuf_busy; /* sbuf busy flag */ uchar_t un_ncmds; /* number of commands outstanding */ uchar_t un_throttle; /* curr. max number of cmds outst. */ uchar_t un_last_throttle; /* saved max number of cmds outst. */ uchar_t un_max_throttle; /* max poss. number cmds outstanding */ uchar_t un_persistence; /* 1 = persistence on, 0 off */ uchar_t un_persist_errors; /* 1 = persistenced flagged */ uchar_t un_flush_on_errors; /* HBA will flush all I/O's on a */ /* check condidtion or error */ uint_t un_kbytes_xferred; /* bytes (in K) counter */ uint_t un_last_resid; /* keep last resid, for PE */ uint_t un_last_count; /* keep last count, for PE */ struct kstat *un_stats; /* for I/O statistics */ struct buf *un_rqs_bp; /* bp used in rqpkt */ struct buf *un_wf; /* head of write queue */ struct buf *un_wl; /* tail of write queue */ struct read_blklim *un_rbl; /* ptr to read block limit info */ int un_maxdma; /* max dma xfer allowed by HBA */ uint_t un_bsize; /* block size currently being used */ int un_maxbsize; /* max block size allowed by drive */ uint_t un_minbsize; /* min block size allowed by drive */ int un_errno; /* errno (b_error) */ kcondvar_t un_state_cv; /* mediastate condition variable */ enum mtio_state un_mediastate; /* current media state */ enum mtio_state un_specified_mediastate; /* expected state */ timeout_id_t un_delay_tid; /* delayed cv tid */ timeout_id_t un_hib_tid; /* handle interrupt busy tid */ opaque_t un_swr_token; /* scsi_watch request token */ uchar_t un_comp_page; /* compression page */ uchar_t un_rsvd_status; /* Reservation Status */ kstat_t *un_errstats; /* for error statistics */ int un_init_options; /* Init time drive options */ int un_save_fileno; /* Save here for recovery */ daddr_t un_save_blkno; /* Save here for recovery */ uchar_t un_restore_pos; /* Indication to do recovery */ int un_suspend_fileno; /* Save fileno for SUSPEND */ daddr_t un_suspend_blkno; /* Save blkno for SUSPEND */ uchar_t un_silent_skip; /* to catch short reads */ short un_tids_at_suspend; /* timeouts set at suspend */ kcondvar_t un_tape_busy_cv; /* busy cv */ kcondvar_t un_suspend_cv; /* busy cv */ /* restore on close */ uchar_t un_eject_tape_on_failure; /* 1 = eject tape, 0 = don't */ uchar_t un_HeadClean; /* support and need head cleaning? */ uchar_t un_rqs_state; /* see define below */ caddr_t un_uscsi_rqs_buf; /* uscsi_rqs: buffer for RQS data */ uchar_t un_data_mod; /* Device required data mod */ #if defined(__i386) || defined(__amd64) ddi_dma_handle_t un_contig_mem_hdl; struct contig_mem *un_contig_mem; int un_contig_mem_available_num; int un_contig_mem_total_num; kcondvar_t un_contig_mem_cv; #endif }; /* * device error kstats */ struct st_errstats { struct kstat_named st_softerrs; struct kstat_named st_harderrs; struct kstat_named st_transerrs; struct kstat_named st_vid; struct kstat_named st_pid; struct kstat_named st_revision; struct kstat_named st_serial; }; /* * generic log page struct */ struct log_page { #if defined(_BIT_FIELDS_LTOH) uchar_t code :6, /* page code number */ :2; /* reserved */ #elif defined(_BIT_FIELDS_HTOL) uchar_t :2, /* reserved */ code :6; /* page code number */ #endif /* _BIT_FIELDS_LTOH */ uchar_t reserved; /* reserved */ uchar_t length_hi; /* length of bytes to follow (msb) */ uchar_t length_lo; /* length of bytes to follow (lsb) */ /* * Log parameters follow right after this... */ }; /* * generic log page parameter struct */ struct log_param { uchar_t pc_hi; /* parameter code (msb) */ uchar_t pc_lo; /* parameter code (lsb) */ #if defined(_BIT_FIELDS_LTOH) uchar_t lp : 1, /* list parameter */ : 1, /* reserved */ tmc : 2, /* threshold met criteria */ etc : 1, /* enable threshold comparison */ tsd : 1, /* target save disable */ ds : 1, /* disable save */ du : 1; /* disable update */ #elif defined(_BIT_FIELDS_HTOL) uchar_t du : 1, /* disable update */ ds : 1, /* disable save */ tsd : 1, /* target save disable */ etc : 1, /* enable threshold comparison */ tmc : 2, /* threshold met criteria */ : 1, /* reserved */ lp : 1; /* list parameter */ #endif /* _BIT_FIELDS_LTOH */ uchar_t length; /* length of bytes to follow */ /* * Parameter values follow right after this... */ }; /* * TapeAlert structures */ struct st_tape_alert_parameter { struct log_param log_param; uchar_t param_value; }; struct st_tape_alert { struct log_page log_page; struct st_tape_alert_parameter param[TAPE_ALERT_MAX_PARA]; }; #define TAPE_ALERT_PARAMETER_LENGTH \ (sizeof (struct st_tape_alert_parameter)) * TAPE_ALERT_MAX_PARA struct log_sequential_page_parameter { struct log_param log_param; uchar_t param_value[8]; }; struct log_sequential_page { struct log_page log_page; struct log_sequential_page_parameter param[TAPE_SEQUENTIAL_PAGE_PARA]; }; #if !defined(__lint) _NOTE(MUTEX_PROTECTS_DATA(scsi_device::sd_mutex, scsi_tape)) _NOTE(SCHEME_PROTECTS_DATA("stable data", scsi_tape::un_dp)) _NOTE(SCHEME_PROTECTS_DATA("stable data", scsi_tape::un_sd)) _NOTE(SCHEME_PROTECTS_DATA("not shared", scsi_tape::un_rqs)) _NOTE(DATA_READABLE_WITHOUT_LOCK(scsi_tape::un_bsize)) _NOTE(SCHEME_PROTECTS_DATA("not shared", scsi_arq_status)) _NOTE(SCHEME_PROTECTS_DATA("save sharing", scsi_tape::un_allow_large_xfer scsi_tape::un_maxbsize scsi_tape::un_maxdma )) #endif /* * driver states.. */ #define ST_STATE_CLOSED 0 #define ST_STATE_OFFLINE 1 #define ST_STATE_INITIALIZING 2 #define ST_STATE_OPENING 3 #define ST_STATE_OPEN_PENDING_IO 4 #define ST_STATE_APPEND_TESTING 5 #define ST_STATE_OPEN 6 #define ST_STATE_RESOURCE_WAIT 7 #define ST_STATE_CLOSING 8 #define ST_STATE_SENSING 9 #define ST_STATE_CLOSE_PENDING_OPEN 10 /* * Power management state */ #define ST_PWR_NORMAL 0 #define ST_PWR_SUSPENDED 1 /* * operation codes */ #define ST_OP_NIL 0 #define ST_OP_CTL 1 #define ST_OP_READ 2 #define ST_OP_WRITE 3 #define ST_OP_WEOF 4 /* * eof/eot/eom codes. */ #define ST_NO_EOF 0x00 #define ST_EOF_PENDING 0x01 /* filemark pending */ #define ST_EOF 0x02 /* at filemark */ #define ST_EOT_PENDING 0x03 /* logical eot pending */ #define ST_EOT 0x04 /* at logical eot */ #define ST_EOM 0x05 /* at physical eot */ #define ST_WRITE_AFTER_EOM 0x06 /* flag for allowing writes after EOM */ #define IN_EOF(un) (un->un_eof == ST_EOF_PENDING || un->un_eof == ST_EOF) /* un_rqs_state codes */ #define ST_RQS_OVR 0x1 /* RQS data was overwritten */ #define ST_RQS_VALID 0x2 /* RQS data is valid */ #define ST_RQS_READ 0x4 /* RQS data was read */ #define ST_RQS_ERROR 0x8 /* RQS resulted in an EIO */ /* * stintr codes */ #define COMMAND_DONE 0 #define COMMAND_DONE_ERROR 1 #define COMMAND_DONE_ERROR_RECOVERED 2 #define QUE_COMMAND 3 #define QUE_BUSY_COMMAND 4 #define QUE_SENSE 5 #define JUST_RETURN 6 #define COMMAND_DONE_EACCES 7 #define QUE_LAST_COMMAND 8 /* * Reservation Status * * ST_INIT_RESERVE -Used to check if the reservation has been lost * in between opens and also to indicate the reservation * has not been done till now. * ST_RELEASE -Tape Unit is Released. * ST_RESERVE -Tape Unit is Reserved. * ST_PRESERVE_RESERVE -Reservation is to be preserved across opens. * */ #define ST_INIT_RESERVE 0x001 #define ST_RELEASE 0x002 #define ST_RESERVE 0x004 #define ST_PRESERVE_RESERVE 0x008 #define ST_RESERVATION_CONFLICT 0x010 #define ST_LOST_RESERVE 0x020 #define ST_RESERVE_SUPPORTED(un) \ ((un->un_dp->options & ST_NO_RESERVE_RELEASE) == 0) #define ST_RESERVATION_DELAY 500000 /* * Asynch I/O tunables */ #define ST_MAX_THROTTLE 4 /* * 60 minutes seems a reasonable amount of time * to wait for tape space operations to complete. * */ #define ST_SPACE_TIME MINUTES(60) /* 60 minutes per space operation */ #define ST_LONG_SPACE_TIME_X 5 /* multipiler for long space ops */ /* * 2 minutes seems a reasonable amount of time * to wait for tape i/o operations to complete. * */ #define ST_IO_TIME MINUTES(2) /* minutes per i/o */ #define ST_LONG_TIMEOUT_X 5 /* multiplier for very long timeouts */ /* * 10 seconds is what we'll wait if we get a Busy Status back */ #define ST_STATUS_BUSY_TIMEOUT 10*hz /* seconds Busy Waiting */ #define ST_TRAN_BUSY_TIMEOUT 1*hz /* seconds retry on TRAN_BSY */ #define ST_INTERRUPT_CONTEXT 1 #define ST_START_CONTEXT 2 /* * Number of times we'll retry a normal operation. * * XXX This includes retries due to transport failure as well as * XXX busy timeouts- Need to distinguish between Target and Transport * XXX failure. */ #define ST_RETRY_COUNT 20 /* * Number of times to retry a failed selection */ #define ST_SEL_RETRY_COUNT 2 /* * es_code value for deferred error * should be moved to sense.h */ #define ST_DEFERRED_ERROR 0x01 /* * Maximum number of units (determined by minor device byte) */ #define ST_MAXUNIT 128 /* * Time to wait for completion of a command before cancelling it. * For SUSPEND use only */ #define ST_WAIT_CMDS_COMPLETE 10 /* seconds */ #ifndef SECSIZE #define SECSIZE 512 #endif #ifndef SECDIV #define SECDIV 9 #endif /* * convenient defines */ #define ST_SCSI_DEVP (un->un_sd) #define ST_DEVINFO (ST_SCSI_DEVP->sd_dev) #define ST_INQUIRY (ST_SCSI_DEVP->sd_inq) #define ST_RQSENSE (ST_SCSI_DEVP->sd_sense) #define ST_MUTEX (&ST_SCSI_DEVP->sd_mutex) #define ROUTE (&ST_SCSI_DEVP->sd_address) #define BSD_BEHAVIOR (getminor(un->un_dev) & MT_BSD) #define SVR4_BEHAVIOR ((getminor(un->un_dev) & MT_BSD) == 0) #define SCBP(pkt) ((struct scsi_status *)(pkt)->pkt_scbp) #define SCBP_C(pkt) ((*(pkt)->pkt_scbp) & STATUS_MASK) #define CDBP(pkt) ((union scsi_cdb *)(pkt)->pkt_cdbp) #define BP_PKT(bp) ((struct scsi_pkt *)(bp)->av_back) #define SET_BP_PKT(bp, pkt) ((bp)->av_back = (struct buf *)(pkt)) #define BP_UCMD(bp) ((struct uscsi_cmd *)(bp)->b_back) #define USCSI_CMD(bp) (((bp) == un->un_sbufp) && (BP_UCMD(bp))) #define IS_CLOSING(un) ((un)->un_state == ST_STATE_CLOSING || \ ((un)->un_state == ST_STATE_SENSING && \ (un)->un_laststate == ST_STATE_CLOSING)) #define ASYNC_CMD 0 #define SYNC_CMD 1 /* * Flush tape wait queue as needed. */ #define IS_PE_FLAG_SET(un) ((un)->un_persistence && (un)->un_persist_errors) #define TURN_PE_ON(un) st_turn_pe_on(un) #define TURN_PE_OFF(un) st_turn_pe_off(un) #define SET_PE_FLAG(un) st_set_pe_flag(un) #define CLEAR_PE(un) st_clear_pe(un) #define st_bioerror(bp, error) \ { bioerror(bp, error); \ un->un_errno = error; } /* * Macros for internal coding of count for SPACE command: * * Isfmk is 1 when spacing filemarks; 0 when spacing records: * bit 24 set indicates a space filemark command. * Fmk sets the filemark bit (24) and changes a backspace * count into a positive number with the sign bit set. * Blk changes a backspace count into a positive number with * the sign bit set. * space_cnt converts backwards counts to negative numbers. */ #define Isfmk(x) ((x & (1<<24)) != 0) #define Fmk(x) ((1<<24)|((x < 0) ? ((-(x)) | (1<<30)): x)) #define Blk(x) ((x < 0)? ((-(x))|(1<<30)): x) #define space_cnt(x) (((x) & (1<<30))? (-((x)&((1<<24)-1))):(x)&((1<<24)-1)) #define GET_SOFT_STATE(dev) \ register struct scsi_tape *un; \ register int instance; \ \ instance = MTUNIT(dev); \ if ((un = ddi_get_soft_state(st_state, instance)) == NULL) \ return (ENXIO); /* * Debugging turned on via conditional compilation switch -DSTDEBUG */ #ifdef DEBUG #define STDEBUG #endif #ifdef STDEBUG #define DEBUGGING ((scsi_options & SCSI_DEBUG_TGT) || st_debug > 1) #define ST_DEBUG1 if (st_debug >= 1) scsi_log /* initialization */ #define ST_DEBUG ST_DEBUG1 #define ST_DEBUG2 if (st_debug >= 2) scsi_log /* errors and UA's */ #define ST_DEBUG3 if (st_debug >= 3) scsi_log /* func calls */ #define ST_DEBUG4 if (st_debug >= 4) scsi_log /* ioctl calls */ #define ST_DEBUG5 if (st_debug >= 5) scsi_log #define ST_DEBUG6 if (st_debug >= 6) scsi_log /* full data tracking */ #define ST_DEBUG_SP if (st_debug == 10) scsi_log /* special cases */ #else #define st_debug (0) #define DEBUGGING (0) #define ST_DEBUG if (0) scsi_log #define ST_DEBUG1 if (0) scsi_log #define ST_DEBUG2 if (0) scsi_log #define ST_DEBUG3 if (0) scsi_log #define ST_DEBUG4 if (0) scsi_log #define ST_DEBUG5 if (0) scsi_log #define ST_DEBUG6 if (0) scsi_log #define ST_DEBUG_SP if (0) scsi_log /* special cases */ #endif /* * Media access values */ #define MEDIA_ACCESS_DELAY 5000000 /* usecs wait for media state change */ /* * SCSI tape mode sense page information */ #define ST_DEV_CONFIG_PAGE 0x10 /* device config mode page */ #define ST_DEV_CONFIG_NO_COMP 0x00 /* use no compression */ #define ST_DEV_CONFIG_DEF_COMP 0x01 /* use default compression alg */ #define ST_COMPRESSION_DENSITY 3 /* compression minor number */ /* * SCSI tape data compression Page definition. */ #define ST_DEV_DATACOMP_PAGE 0x0F /* data compression page */ /* * maxbsize values */ #define MAXBSIZE_UNKNOWN -2 /* not found yet */ #define ONE_MEG (1024 * 1024) /* * generic soft error reporting * * What we are doing here is allowing a greater number of errors to occur on * smaller transfers (i.e. usually at the beginning of the tape), than on * the rest of the tape. * * A small transfer is defined as : * Transfers <= SOFT_ERROR_WARNING_THRESHOLD allow about 1.5 times more errors * * A larget tranfer is defined as : * Transfers > SOFT_ERROR_WARNING_THRESHOLD allow normal amount * */ #define READ_SOFT_ERROR_WARNING_THRESHOLD (25 * ONE_MEG) #define WRITE_SOFT_ERROR_WARNING_THRESHOLD (20 * ONE_MEG) /* * soft error reporting for exabyte */ #define TAPE_SENSE_LENGTH 32 /* allows for softerror info */ #define SENSE_19_BITS \ "\20\10PF\07BPE\06FPE\05ME\04ECO\03TME\02TNP\01LBOT" #define SENSE_20_BITS \ "\20\10RSVD\07RSVD\06WP\05FMKE\04URE\03WE1\02SSE\01FW" #define SENSE_21_BITS \ "\20\10RSVD\07RSVD\06RRR\05CLND\04CLN\03PEOT\02WSEB\01WSE0" /* these are defined in percentages */ #define EXABYTE_WRITE_ERROR_THRESHOLD 6 #define EXABYTE_READ_ERROR_THRESHOLD 3 /* * minumum amount of data transfer(MB) for checking soft error rate. */ #define EXABYTE_MIN_TRANSFER (25 * ONE_MEG) #define CLN 0x8 #define CLND 0x10 /* * soft error reporting for Archive 4mm DAT */ #define LOG_SENSE_LENGTH 0xff #define MIN_LOG_SENSE_LENGTH 0x2b #define DAT_SMALL_WRITE_ERROR_THRESHOLD 40 /* retries per 20 mg */ #define DAT_LARGE_WRITE_ERROR_THRESHOLD 200 /* retries for more 20 mg */ #define DAT_SMALL_READ_ERROR_THRESHOLD 5 /* errors allowed */ #define DAT_LARGE_READ_ERROR_THRESHOLD 3 /* errors allowed */ /* * ST timeouts that need to be cancelled for suspend */ #define ST_HIB_TID 0x01 #define ST_DELAY_TID 0x02 #ifdef __cplusplus } #endif #endif /* _SYS_SCSI_TARGETS_STDEF_H */