Return to aha154x CVS log

Up to [MW Coherent from dump] / coherent / a / usr / man / COHERENT

Annotation of coherent/a/usr/man/COHERENT/aha154x, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: aha154x                   Device Driver                   aha154x
        !             4: 
        !             5: 
        !             6: 
        !             7: 
        !             8: Adaptec AHA-154x device driver
        !             9: 
        !            10: 
        !            11: The  device driver  aahhaa115544xx lets you  use SCSI  interface devices
        !            12: attached to an Adaptec AHA-154x series host adapter.  This driver
        !            13: has  major number  13.  It  can  be accessed  either as  a block-
        !            14: special  device  or as  a  character-special  device.  The  minor
        !            15: number specifies  the device  and partition number  for disk-type
        !            16: devices, letting  you use up  to eight SCSI-IDs, with  up to four
        !            17: logical unit numbers (LUNs) per SCSI-ID and up to four partitions
        !            18: per LUN.
        !            19: 
        !            20: The first  ooppeenn call on  a SCSI disk device  allocates memory for
        !            21: the partition table and reads it into memory.
        !            22: 
        !            23: ***** Controller Configuration *****
        !            24: 
        !            25: Prior to installing the  Adaptec host adapter in your system, you
        !            26: must  configure the  I/O base address,  interrupt vector  and DMA
        !            27: channel as follows:
        !            28: 
        !            29: 
        !            30:             I/O base address:0x330
        !            31:             DMA channel:    5
        !            32:             Interrupt vector:IRQ11
        !            33: 
        !            34: 
        !            35: In addition,  if you are using  any synchronous SCSI peripherals,
        !            36: disable  the  synchronous transfer  option  on  the Adaptec  host
        !            37: adapter.
        !            38: 
        !            39: After verifying that your controller works with COHERENT, you may
        !            40: select an  alternate I/O base  address or an  alternate interrupt
        !            41: vector.  Device driver variables SSDDBBAASSEE_ and SSDDIIRRQQ_ correspond to
        !            42: the  I/O base  address and  interrupt vector,  respectively.  See
        !            43: Lexicon article  hhss for an  example of how to  configure a device
        !            44: driver.
        !            45: 
        !            46: When processing BIOS  I/O requests prior to booting COHERENT, the
        !            47: Adaptec host adapter  uses ``translation mode'' drive parameters:
        !            48: number of heads,  cylinders, and sectors per track.  Most current
        !            49: versions of  the AHA-154x use  values of 64 heads  and 32 sectors
        !            50: per track, and calculate the number of cylinders based upon drive
        !            51: capacity.   Note that these  numbers are  called translation-mode
        !            52: parameters  because they  have nothing  to  do with  the physical
        !            53: drive geometry.   Some early versions  of the AHA-154x,  and some
        !            54: versions distributed  by Tandy, use  16 heads and  32 sectors per
        !            55: track.  Device  driver variable SSDD_HHDDSS_  is initialized to  64 as
        !            56: shipped;   it should  be patched  to a value  of 16  for adapters
        !            57: whose BIOS code  uses 16-head translation mode.  The translation-
        !            58: mode  parameters  used by  the  BIOS code  present  on your  host
        !            59: adapter can  be obtained using the ddppbb utility  found on the boot
        !            60: diskette of versions 3.2.0  and later of COHERENT.  Note that the
        !            61: BIOS code is  executed by COHERENT only during initial bootstrap.
        !            62: 
        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
        !            65: 
        !            66: 
        !            67: 
        !            68: 
        !            69: aha154x                   Device Driver                   aha154x
        !            70: 
        !            71: 
        !            72: 
        !            73: After that, drive parameters are of no consequence since SCSI I/O
        !            74: requests  are based  upon logical  block  number, rather  than on
        !            75: cylinder/head/sector addressing.
        !            76: 
        !            77: The installation procedure  for COHERENT versions 3.2.0 and later
        !            78: patches all  necessary variables for the  accompanying version of
        !            79: the aahhaa115544xx driver by executing the command:
        !            80: 
        !            81: 
        !            82:        /etc/mkdev scsi
        !            83: 
        !            84: 
        !            85: ***** Minor Device Numbers *****
        !            86: 
        !            87: The minor device number is decoded as follows:
        !            88: 
        !            89: 
        !            90:        _B_i_t _n_u_m_b_e_r:  7 6 5 4 3 2 1 0
        !            91:        _M_e_a_n_i_n_g:     S I I I L L P P
        !            92: 
        !            93: 
        !            94: where _S indicates  the ``special'' bit, _I_I_I indicates a three-bit
        !            95: field containing the SCSI-ID  in the range of zero through seven,
        !            96: _L_L indicates  a two-bit  field containing a  LUN in the  range of
        !            97: zero  through  three,  and  _P_P  indicates  a two-bit  field  that
        !            98: contains either a partition number for disk-type devices or a set
        !            99: of special modes for devices other than disks.
        !           100: 
        !           101: The ``special'' bit and the partition number interact as follows:
        !           102: 
        !           103: 
        !           104: _D_e_s_c_r_i_p_t_i_o_n        _S _B_i_t  _P_P  _D_e_v_i_c_e      _T_y_p_e
        !           105: partition a        0      00 /dev/sd?a    disk
        !           106: partition b        0      01 /dev/sd?b    disk
        !           107: partition c        0      10 /dev/sd?c    disk
        !           108: partition d        0      11 /dev/sd?d    disk
        !           109: partition table    1      00 /dev/sd?x    disk
        !           110: no rewind          1      01 /dev/sd?n    tape
        !           111: RESERVED           1      10     ---      ----
        !           112: rewind on close    1      11 /dev/sd?     tape
        !           113: 
        !           114: 
        !           115: ***** Loading the Driver ***** The aahhaa115544xx loadable device driver
        !           116: must be loaded on a system that does not have a SCSI hard disk as
        !           117: the  root  device.  To  do  so, use  the  command /eettcc/ddrrvvlldd,  as
        !           118: follows:
        !           119: 
        !           120: 
        !           121:                    /etc/drvld -r /drv/aha154x
        !           122: 
        !           123: 
        !           124: ***** Files ***** /ddeevv/ssdd* -- bblloocckk-ssppeecciiaall ddeevviicceess
        !           125: /ddeevv/rrssdd* -- cchhaarraacctteerr-ssppeecciiaall ddeevviicceess
        !           126: 
        !           127: 
        !           128: 
        !           129: 
        !           130: COHERENT Lexicon                                           Page 2
        !           131: 
        !           132: 
        !           133: 
        !           134: 
        !           135: aha154x                   Device Driver                   aha154x
        !           136: 
        !           137: 
        !           138: 
        !           139: ***** See Also *****
        !           140: 
        !           141: ddeevviiccee ddrriivveerrss, ddrrvvlldd, ssccssii
        !           142: 
        !           143: ***** Notes *****
        !           144: 
        !           145: This release of the aahhaa115544xx device driver only supports disk-type
        !           146: devices.  A  future version  of the  driver will add  support for
        !           147: tape-type and other devices.
        !           148: 
        !           149: 
        !           150: 
        !           151: 
        !           152: 
        !           153: 
        !           154: 
        !           155: 
        !           156: 
        !           157: 
        !           158: 
        !           159: 
        !           160: 
        !           161: 
        !           162: 
        !           163: 
        !           164: 
        !           165: 
        !           166: 
        !           167: 
        !           168: 
        !           169: 
        !           170: 
        !           171: 
        !           172: 
        !           173: 
        !           174: 
        !           175: 
        !           176: 
        !           177: 
        !           178: 
        !           179: 
        !           180: 
        !           181: 
        !           182: 
        !           183: 
        !           184: 
        !           185: 
        !           186: 
        !           187: 
        !           188: 
        !           189: 
        !           190: 
        !           191: 
        !           192: 
        !           193: 
        !           194: 
        !           195: 
        !           196: COHERENT Lexicon                                           Page 3
        !           197: 
        !           198: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.