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Annotation of Gnu-Mach/linux/src/drivers/scsi/eata.c, revision 1.1

1.1     ! root        1: /*
        !             2:  *      eata.c - Low-level driver for EATA/DMA SCSI host adapters.
        !             3:  *
        !             4:  *      26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111
        !             5:  *        + Added command line option (rs:[y|n]) to reverse the scan order
        !             6:  *          of PCI boards. The default is rs:y, which reverses the BIOS order
        !             7:  *          while registering PCI boards. The default value rs:y generates
        !             8:  *          the same order of all previous revisions of this driver.
        !             9:  *          Pls. note that "BIOS order" might have been reversed itself
        !            10:  *          after the 2.1.9x PCI modifications in the linux kernel.
        !            11:  *          The rs value is ignored when the explicit list of addresses
        !            12:  *          is used by the "eata=port0,port1,..." command line option.
        !            13:  *        + Added command line option (et:[y|n]) to force use of extended
        !            14:  *          translation (255 heads, 63 sectors) as disk geometry.
        !            15:  *          The default is et:n, which uses the disk geometry returned
        !            16:  *          by scsicam_bios_param. The default value et:n is compatible with
        !            17:  *          all previous revisions of this driver.
        !            18:  *
        !            19:  *      28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104
        !            20:  *          Increased busy timeout from 10 msec. to 200 msec. while
        !            21:  *          processing interrupts.
        !            22:  *
        !            23:  *      16 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102
        !            24:  *          Improved abort handling during the eh recovery process.
        !            25:  *
        !            26:  *      13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101
        !            27:  *          The driver is now fully SMP safe, including the
        !            28:  *          abort and reset routines.
        !            29:  *          Added command line options (eh:[y|n]) to choose between
        !            30:  *          new_eh_code and the old scsi code.
        !            31:  *          If linux version >= 2.1.101 the default is eh:y, while the eh
        !            32:  *          option is ignored for previous releases and the old scsi code
        !            33:  *          is used.
        !            34:  *
        !            35:  *      18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97
        !            36:  *          Reworked interrupt handler.
        !            37:  *
        !            38:  *      11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95
        !            39:  *          Major reliability improvement: when a batch with overlapping
        !            40:  *          requests is detected, requests are queued one at a time
        !            41:  *          eliminating any possible board or drive reordering.
        !            42:  *
        !            43:  *      10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95
        !            44:  *          Improved SMP support (if linux version >= 2.1.95).
        !            45:  *
        !            46:  *       9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94
        !            47:  *          Added support for new PCI code and IO-APIC remapping of irqs.
        !            48:  *          Performance improvement: when sequential i/o is detected,
        !            49:  *          always use direct sort instead of reverse sort.
        !            50:  *
        !            51:  *       4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92
        !            52:  *          io_port is now unsigned long.
        !            53:  *
        !            54:  *      17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88
        !            55:  *          Use new scsi error handling code (if linux version >= 2.1.88).
        !            56:  *          Use new interrupt code.
        !            57:  *
        !            58:  *      12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55
        !            59:  *          Use of udelay inside the wait loops to avoid timeout
        !            60:  *          problems with fast cpus.
        !            61:  *          Removed check about useless calls to the interrupt service
        !            62:  *          routine (reported on SMP systems only).
        !            63:  *          At initialization time "sorted/unsorted" is displayed instead
        !            64:  *          of "linked/unlinked" to reinforce the fact that "linking" is
        !            65:  *          nothing but "elevator sorting" in the actual implementation.
        !            66:  *
        !            67:  *      17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38
        !            68:  *          Use of serial_number_at_timeout in abort and reset processing.
        !            69:  *          Use of the __initfunc and __initdata macro in setup code.
        !            70:  *          Minor cleanups in the list_statistics code.
        !            71:  *          Increased controller busy timeout in order to better support
        !            72:  *          slow SCSI devices.
        !            73:  *
        !            74:  *      24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26
        !            75:  *          When loading as a module, parameter passing is now supported
        !            76:  *          both in 2.0 and in 2.1 style.
        !            77:  *          Fixed data transfer direction for some SCSI opcodes.
        !            78:  *          Immediate acknowledge to request sense commands.
        !            79:  *          Linked commands to each disk device are now reordered by elevator
        !            80:  *          sorting. Rare cases in which reordering of write requests could
        !            81:  *          cause wrong results are managed.
        !            82:  *          Fixed spurious timeouts caused by long simple queue tag sequences.
        !            83:  *          New command line option (tm:[0-3]) to choose the type of tags:
        !            84:  *          0 -> mixed (default); 1 -> simple; 2 -> head; 3 -> ordered.
        !            85:  *
        !            86:  *      18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28
        !            87:  *          Added command line options to enable/disable linked commands
        !            88:  *          (lc:[y|n]), tagged commands (tc:[y|n]) and to set the max queue
        !            89:  *          depth (mq:xx). Default is "eata=lc:n,tc:n,mq:16".
        !            90:  *          Improved command linking.
        !            91:  *          Documented how to setup RAID-0 with DPT SmartRAID boards.
        !            92:  *
        !            93:  *       8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27
        !            94:  *          Added linked command support.
        !            95:  *          Improved detection of PCI boards using ISA base addresses.
        !            96:  *
        !            97:  *       3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27
        !            98:  *          Added support for tagged commands and queue depth adjustment.
        !            99:  *
        !           100:  *      22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
        !           101:  *          When CONFIG_PCI is defined, BIOS32 is used to include in the
        !           102:  *          list of i/o ports to be probed all the PCI SCSI controllers.
        !           103:  *          The list of i/o ports to be probed can be overwritten by the
        !           104:  *          "eata=port0,port1,...." boot command line option.
        !           105:  *          Scatter/gather lists are now allocated by a number of kmalloc
        !           106:  *          calls, in order to avoid the previous size limit of 64Kb.
        !           107:  *
        !           108:  *      16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
        !           109:  *          Added support for EATA 2.0C, PCI, multichannel and wide SCSI.
        !           110:  *
        !           111:  *      27 Sep 1996 rev. 2.12 for linux 2.1.0
        !           112:  *          Portability cleanups (virtual/bus addressing, little/big endian
        !           113:  *          support).
        !           114:  *
        !           115:  *      09 Jul 1996 rev. 2.11 for linux 2.0.4
        !           116:  *          Number of internal retries is now limited.
        !           117:  *
        !           118:  *      16 Apr 1996 rev. 2.10 for linux 1.3.90
        !           119:  *          New argument "reset_flags" to the reset routine.
        !           120:  *
        !           121:  *       6 Jul 1995 rev. 2.01 for linux 1.3.7
        !           122:  *          Update required by the new /proc/scsi support.
        !           123:  *
        !           124:  *      11 Mar 1995 rev. 2.00 for linux 1.2.0
        !           125:  *          Fixed a bug which prevented media change detection for removable
        !           126:  *          disk drives.
        !           127:  *
        !           128:  *      23 Feb 1995 rev. 1.18 for linux 1.1.94
        !           129:  *          Added a check for scsi_register returning NULL.
        !           130:  *
        !           131:  *      11 Feb 1995 rev. 1.17 for linux 1.1.91
        !           132:  *          Now DEBUG_RESET is disabled by default.
        !           133:  *          Register a board even if it does not assert DMA protocol support
        !           134:  *          (DPT SK2011B does not report correctly the dmasup bit).
        !           135:  *
        !           136:  *       9 Feb 1995 rev. 1.16 for linux 1.1.90
        !           137:  *          Use host->wish_block instead of host->block.
        !           138:  *          New list of Data Out SCSI commands.
        !           139:  *
        !           140:  *       8 Feb 1995 rev. 1.15 for linux 1.1.89
        !           141:  *          Cleared target_time_out counter while performing a reset.
        !           142:  *          All external symbols renamed to avoid possible name conflicts.
        !           143:  *
        !           144:  *      28 Jan 1995 rev. 1.14 for linux 1.1.86
        !           145:  *          Added module support.
        !           146:  *          Log and do a retry when a disk drive returns a target status
        !           147:  *          different from zero on a recovered error.
        !           148:  *
        !           149:  *      24 Jan 1995 rev. 1.13 for linux 1.1.85
        !           150:  *          Use optimized board configuration, with a measured performance
        !           151:  *          increase in the range 10%-20% on i/o throughput.
        !           152:  *
        !           153:  *      16 Jan 1995 rev. 1.12 for linux 1.1.81
        !           154:  *          Fix mscp structure comments (no functional change).
        !           155:  *          Display a message if check_region detects a port address
        !           156:  *          already in use.
        !           157:  *
        !           158:  *      17 Dec 1994 rev. 1.11 for linux 1.1.74
        !           159:  *          Use the scsicam_bios_param routine. This allows an easy
        !           160:  *          migration path from disk partition tables created using
        !           161:  *          different SCSI drivers and non optimal disk geometry.
        !           162:  *
        !           163:  *      15 Dec 1994 rev. 1.10 for linux 1.1.74
        !           164:  *          Added support for ISA EATA boards (DPT PM2011, DPT PM2021).
        !           165:  *          The host->block flag is set for all the detected ISA boards.
        !           166:  *          The detect routine no longer enforces LEVEL triggering
        !           167:  *          for EISA boards, it just prints a warning message.
        !           168:  *
        !           169:  *      30 Nov 1994 rev. 1.09 for linux 1.1.68
        !           170:  *          Redo i/o on target status CHECK_CONDITION for TYPE_DISK only.
        !           171:  *          Added optional support for using a single board at a time.
        !           172:  *
        !           173:  *      18 Nov 1994 rev. 1.08 for linux 1.1.64
        !           174:  *          Forces sg_tablesize = 64 and can_queue = 64 if these
        !           175:  *          values are not correctly detected (DPT PM2012).
        !           176:  *
        !           177:  *      14 Nov 1994 rev. 1.07 for linux 1.1.63  Final BETA release.
        !           178:  *      04 Aug 1994 rev. 1.00 for linux 1.1.39  First BETA release.
        !           179:  *
        !           180:  *
        !           181:  *          This driver is based on the CAM (Common Access Method Committee)
        !           182:  *          EATA (Enhanced AT Bus Attachment) rev. 2.0A, using DMA protocol.
        !           183:  *
        !           184:  *  Copyright (C) 1994-1998 Dario Ballabio ([email protected])
        !           185:  *
        !           186:  *  Redistribution and use in source and binary forms, with or without
        !           187:  *  modification, are permitted provided that redistributions of source
        !           188:  *  code retain the above copyright notice and this comment without
        !           189:  *  modification.
        !           190:  *
        !           191:  */
        !           192: 
        !           193: /*
        !           194:  *
        !           195:  *  Here is a brief description of the DPT SCSI host adapters.
        !           196:  *  All these boards provide an EATA/DMA compatible programming interface
        !           197:  *  and are fully supported by this driver in any configuration, including
        !           198:  *  multiple SCSI channels:
        !           199:  *
        !           200:  *  PM2011B/9X -  Entry Level ISA
        !           201:  *  PM2021A/9X -  High Performance ISA
        !           202:  *  PM2012A       Old EISA
        !           203:  *  PM2012B       Old EISA
        !           204:  *  PM2022A/9X -  Entry Level EISA
        !           205:  *  PM2122A/9X -  High Performance EISA
        !           206:  *  PM2322A/9X -  Extra High Performance EISA
        !           207:  *  PM3021     -  SmartRAID Adapter for ISA
        !           208:  *  PM3222     -  SmartRAID Adapter for EISA (PM3222W is 16-bit wide SCSI)
        !           209:  *  PM3224     -  SmartRAID Adapter for PCI  (PM3224W is 16-bit wide SCSI)
        !           210:  *
        !           211:  *  The above list is just an indication: as a matter of fact all DPT
        !           212:  *  boards using the EATA/DMA protocol are supported by this driver,
        !           213:  *  since they use exactely the same programming interface.
        !           214:  *
        !           215:  *  The DPT PM2001 provides only the EATA/PIO interface and hence is not
        !           216:  *  supported by this driver.
        !           217:  *
        !           218:  *  This code has been tested with up to 3 Distributed Processing Technology
        !           219:  *  PM2122A/9X (DPT SCSI BIOS v002.D1, firmware v05E.0) EISA controllers,
        !           220:  *  in any combination of private and shared IRQ.
        !           221:  *  PCI support has been tested using up to 2 DPT PM3224W (DPT SCSI BIOS
        !           222:  *  v003.D0, firmware v07G.0).
        !           223:  *
        !           224:  *  DPT SmartRAID boards support "Hardware Array" - a group of disk drives
        !           225:  *  which are all members of the same RAID-0, RAID-1 or RAID-5 array implemented
        !           226:  *  in host adapter hardware. Hardware Arrays are fully compatible with this
        !           227:  *  driver, since they look to it as a single disk drive.
        !           228:  *
        !           229:  *  WARNING: to create a RAID-0 "Hardware Array" you must select "Other Unix"
        !           230:  *  as the current OS in the DPTMGR "Initial System Installation" menu.
        !           231:  *  Otherwise RAID-0 is generated as an "Array Group" (i.e. software RAID-0),
        !           232:  *  which is not supported by the actual SCSI subsystem.
        !           233:  *  To get the "Array Group" functionality, the Linux MD driver must be used
        !           234:  *  instead of the DPT "Array Group" feature.
        !           235:  *
        !           236:  *  Multiple ISA, EISA and PCI boards can be configured in the same system.
        !           237:  *  It is suggested to put all the EISA boards on the same IRQ level, all
        !           238:  *  the PCI  boards on another IRQ level, while ISA boards cannot share
        !           239:  *  interrupts.
        !           240:  *
        !           241:  *  If you configure multiple boards on the same IRQ, the interrupt must
        !           242:  *  be _level_ triggered (not _edge_ triggered).
        !           243:  *
        !           244:  *  This driver detects EATA boards by probes at fixed port addresses,
        !           245:  *  so no BIOS32 or PCI BIOS support is required.
        !           246:  *  The suggested way to detect a generic EATA PCI board is to force on it
        !           247:  *  any unused EISA address, even if there are other controllers on the EISA
        !           248:  *  bus, or even if you system has no EISA bus at all.
        !           249:  *  Do not force any ISA address on EATA PCI boards.
        !           250:  *
        !           251:  *  If PCI bios support is configured into the kernel, BIOS32 is used to
        !           252:  *  include in the list of i/o ports to be probed all the PCI SCSI controllers.
        !           253:  *
        !           254:  *  Due to a DPT BIOS "feature", it might not be possible to force an EISA
        !           255:  *  address on more then a single DPT PCI board, so in this case you have to
        !           256:  *  let the PCI BIOS assign the addresses.
        !           257:  *
        !           258:  *  The sequence of detection probes is:
        !           259:  *
        !           260:  *  - ISA 0x1F0;
        !           261:  *  - PCI SCSI controllers (only if BIOS32 is available);
        !           262:  *  - EISA/PCI 0x1C88 through 0xFC88 (corresponding to EISA slots 1 to 15);
        !           263:  *  - ISA  0x170, 0x230, 0x330.
        !           264:  *
        !           265:  *  The above list of detection probes can be totally replaced by the
        !           266:  *  boot command line option: "eata=port0,port1,port2,...", where the
        !           267:  *  port0, port1... arguments are ISA/EISA/PCI addresses to be probed.
        !           268:  *  For example using "eata=0x7410,0x7450,0x230", the driver probes
        !           269:  *  only the two PCI addresses 0x7410 and 0x7450 and the ISA address 0x230,
        !           270:  *  in this order; "eata=0" totally disables this driver.
        !           271:  *
        !           272:  *  After the optional list of detection probes, other possible command line
        !           273:  *  options are:
        !           274:  *
        !           275:  *  eh:y  use new scsi code (linux 2.2 only);
        !           276:  *  eh:n  use old scsi code;
        !           277:  *  et:y  force use of extended translation (255 heads, 63 sectors);
        !           278:  *  et:n  use disk geometry detected by scsicam_bios_param;
        !           279:  *  rs:y  reverse scan order while detecting PCI boards;
        !           280:  *  rs:n  use BIOS order while detecting PCI boards;
        !           281:  *  lc:y  enables linked commands;
        !           282:  *  lc:n  disables linked commands;
        !           283:  *  tc:y  enables tagged commands;
        !           284:  *  tc:n  disables tagged commands;
        !           285:  *  tm:0  use head/simple/ordered queue tag sequences;
        !           286:  *  tm:1  use only simple queue tags;
        !           287:  *  tm:2  use only head of queue tags;
        !           288:  *  tm:3  use only ordered queue tags;
        !           289:  *  mq:xx set the max queue depth to the value xx (2 <= xx <= 32).
        !           290:  *
        !           291:  *  The default value is: "eata=lc:n,tc:n,mq:16,tm:0,et:n,rs:n".
        !           292:  *  An example using the list of detection probes could be:
        !           293:  *  "eata=0x7410,0x230,lc:y,tc:n,mq:4,eh:n,et:n".
        !           294:  *
        !           295:  *  When loading as a module, parameters can be specified as well.
        !           296:  *  The above example would be (use 1 in place of y and 0 in place of n):
        !           297:  *
        !           298:  *  modprobe eata io_port=0x7410,0x230 linked_comm=1 tagged_comm=0 \
        !           299:  *                max_queue_depth=4 tag_mode=0 use_new_eh_code=0 \
        !           300:  *                ext_tran=0 rev_scan=1
        !           301:  *
        !           302:  *  ----------------------------------------------------------------------------
        !           303:  *  In this implementation, linked commands are designed to work with any DISK
        !           304:  *  or CD-ROM, since this linking has only the intent of clustering (time-wise)
        !           305:  *  and reordering by elevator sorting commands directed to each device,
        !           306:  *  without any relation with the actual SCSI protocol between the controller
        !           307:  *  and the device.
        !           308:  *  If Q is the queue depth reported at boot time for each device (also named
        !           309:  *  cmds/lun) and Q > 2, whenever there is already an active command to the
        !           310:  *  device all other commands to the same device  (up to Q-1) are kept waiting
        !           311:  *  in the elevator sorting queue. When the active command completes, the
        !           312:  *  commands in this queue are sorted by sector address. The sort is chosen
        !           313:  *  between increasing or decreasing by minimizing the seek distance between
        !           314:  *  the sector of the commands just completed and the sector of the first
        !           315:  *  command in the list to be sorted.
        !           316:  *  Trivial math assures that the unsorted average seek distance when doing
        !           317:  *  random seeks over S sectors is S/3.
        !           318:  *  When (Q-1) requests are uniformly distributed over S sectors, the average
        !           319:  *  distance between two adjacent requests is S/((Q-1) + 1), so the sorted
        !           320:  *  average seek distance for (Q-1) random requests over S sectors is S/Q.
        !           321:  *  The elevator sorting hence divides the seek distance by a factor Q/3.
        !           322:  *  The above pure geometric remarks are valid in all cases and the
        !           323:  *  driver effectively reduces the seek distance by the predicted factor
        !           324:  *  when there are Q concurrent read i/o operations on the device, but this
        !           325:  *  does not necessarily results in a noticeable performance improvement:
        !           326:  *  your mileage may vary....
        !           327:  *
        !           328:  *  Note: command reordering inside a batch of queued commands could cause
        !           329:  *        wrong results only if there is at least one write request and the
        !           330:  *        intersection (sector-wise) of all requests is not empty.
        !           331:  *        When the driver detects a batch including overlapping requests
        !           332:  *        (a really rare event) strict serial (pid) order is enforced.
        !           333:  *  ----------------------------------------------------------------------------
        !           334:  *  The extended translation option (et:y) is useful when using large physical
        !           335:  *  disks/arrays. It could also be useful when switching between Adaptec boards
        !           336:  *  and DPT boards without reformatting the disk.
        !           337:  *  When a boot disk is partitioned with extended translation, in order to
        !           338:  *  be able to boot it with a DPT board is could be necessary to add to
        !           339:  *  lilo.conf additional commands as in the following example:
        !           340:  *
        !           341:  *  fix-table
        !           342:  *  disk=/dev/sda bios=0x80 sectors=63 heads=128 cylindres=546
        !           343:  *
        !           344:  *  where the above geometry should be replaced with the one reported at
        !           345:  *  power up by the DPT controller.
        !           346:  *  ----------------------------------------------------------------------------
        !           347:  *
        !           348:  *  The boards are named EATA0, EATA1,... according to the detection order.
        !           349:  *
        !           350:  *  In order to support multiple ISA boards in a reliable way,
        !           351:  *  the driver sets host->wish_block = TRUE for all ISA boards.
        !           352:  */
        !           353: 
        !           354: #include <linux/version.h>
        !           355: 
        !           356: #define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s))
        !           357: #define MAX_INT_PARAM 10
        !           358: 
        !           359: #if defined(MODULE)
        !           360: #include <linux/module.h>
        !           361: 
        !           362: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,26)
        !           363: MODULE_PARM(io_port, "1-" __MODULE_STRING(MAX_INT_PARAM) "i");
        !           364: MODULE_PARM(linked_comm, "i");
        !           365: MODULE_PARM(tagged_comm, "i");
        !           366: MODULE_PARM(link_statistics, "i");
        !           367: MODULE_PARM(max_queue_depth, "i");
        !           368: MODULE_PARM(tag_mode, "i");
        !           369: MODULE_PARM(use_new_eh_code, "i");
        !           370: MODULE_PARM(ext_tran, "i");
        !           371: MODULE_PARM(rev_scan, "i");
        !           372: MODULE_AUTHOR("Dario Ballabio");
        !           373: #endif
        !           374: 
        !           375: #endif
        !           376: 
        !           377: #include <linux/string.h>
        !           378: #include <linux/sched.h>
        !           379: #include <linux/kernel.h>
        !           380: #include <linux/ioport.h>
        !           381: #include <linux/delay.h>
        !           382: #include <asm/io.h>
        !           383: #include <asm/system.h>
        !           384: #include <asm/byteorder.h>
        !           385: #include <linux/proc_fs.h>
        !           386: #include <linux/blk.h>
        !           387: #include "scsi.h"
        !           388: #include "hosts.h"
        !           389: #include "sd.h"
        !           390: #include <asm/dma.h>
        !           391: #include <asm/irq.h>
        !           392: #include "eata.h"
        !           393: #include <linux/stat.h>
        !           394: #include <linux/config.h>
        !           395: #include <linux/pci.h>
        !           396: 
        !           397: #if LINUX_VERSION_CODE < LinuxVersionCode(2,1,93)
        !           398: #include <linux/bios32.h>
        !           399: #endif
        !           400: 
        !           401: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,36)
        !           402: #include <linux/init.h>
        !           403: #else
        !           404: #define __initfunc(A) A
        !           405: #define __initdata
        !           406: #define __init
        !           407: #endif
        !           408: 
        !           409: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,101)
        !           410: #include <asm/spinlock.h>
        !           411: #define IRQ_FLAGS
        !           412: #define IRQ_LOCK
        !           413: #define IRQ_LOCK_SAVE
        !           414: #define IRQ_UNLOCK
        !           415: #define IRQ_UNLOCK_RESTORE
        !           416: #define SPIN_FLAGS unsigned long spin_flags;
        !           417: #define SPIN_LOCK spin_lock_irq(&io_request_lock);
        !           418: #define SPIN_LOCK_SAVE spin_lock_irqsave(&io_request_lock, spin_flags);
        !           419: #define SPIN_UNLOCK spin_unlock_irq(&io_request_lock);
        !           420: #define SPIN_UNLOCK_RESTORE \
        !           421:                   spin_unlock_irqrestore(&io_request_lock, spin_flags);
        !           422: static int use_new_eh_code = TRUE;
        !           423: #else
        !           424: #define IRQ_FLAGS unsigned long irq_flags;
        !           425: #define IRQ_LOCK cli();
        !           426: #define IRQ_LOCK_SAVE do {save_flags(irq_flags); cli();} while (0);
        !           427: #define IRQ_UNLOCK sti();
        !           428: #define IRQ_UNLOCK_RESTORE do {restore_flags(irq_flags);} while (0);
        !           429: #define SPIN_FLAGS
        !           430: #define SPIN_LOCK
        !           431: #define SPIN_LOCK_SAVE
        !           432: #define SPIN_UNLOCK
        !           433: #define SPIN_UNLOCK_RESTORE
        !           434: static int use_new_eh_code = FALSE;
        !           435: #endif
        !           436: 
        !           437: struct proc_dir_entry proc_scsi_eata2x = {
        !           438:     PROC_SCSI_EATA2X, 6, "eata2x",
        !           439:     S_IFDIR | S_IRUGO | S_IXUGO, 2
        !           440: };
        !           441: 
        !           442: /* Subversion values */
        !           443: #define ISA  0
        !           444: #define ESA 1
        !           445: 
        !           446: #undef FORCE_CONFIG
        !           447: 
        !           448: #undef  DEBUG_LINKED_COMMANDS
        !           449: #undef  DEBUG_DETECT
        !           450: #undef  DEBUG_PCI_DETECT
        !           451: #undef  DEBUG_INTERRUPT
        !           452: #undef  DEBUG_RESET
        !           453: #undef  DEBUG_GENERATE_ERRORS
        !           454: #undef  DEBUG_GENERATE_ABORTS
        !           455: #undef  DEBUG_GEOMETRY
        !           456: 
        !           457: #define MAX_ISA 4
        !           458: #define MAX_VESA 0
        !           459: #define MAX_EISA 15
        !           460: #define MAX_PCI 16
        !           461: #define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
        !           462: #define MAX_CHANNEL 4
        !           463: #define MAX_LUN 32
        !           464: #define MAX_TARGET 32
        !           465: #define MAX_MAILBOXES 64
        !           466: #define MAX_SGLIST 64
        !           467: #define MAX_LARGE_SGLIST 122
        !           468: #define MAX_INTERNAL_RETRIES 64
        !           469: #define MAX_CMD_PER_LUN 2
        !           470: #define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN)
        !           471: 
        !           472: #define SKIP ULONG_MAX
        !           473: #define FALSE 0
        !           474: #define TRUE 1
        !           475: #define FREE 0
        !           476: #define IN_USE   1
        !           477: #define LOCKED   2
        !           478: #define IN_RESET 3
        !           479: #define IGNORE   4
        !           480: #define READY    5
        !           481: #define ABORTING 6
        !           482: #define NO_DMA  0xff
        !           483: #define MAXLOOP  10000
        !           484: #define TAG_MIXED    0
        !           485: #define TAG_SIMPLE   1
        !           486: #define TAG_HEAD     2
        !           487: #define TAG_ORDERED  3
        !           488: 
        !           489: #define REG_CMD         7
        !           490: #define REG_STATUS      7
        !           491: #define REG_AUX_STATUS  8
        !           492: #define REG_DATA        0
        !           493: #define REG_DATA2       1
        !           494: #define REG_SEE         6
        !           495: #define REG_LOW         2
        !           496: #define REG_LM          3
        !           497: #define REG_MID         4
        !           498: #define REG_MSB         5
        !           499: #define REGION_SIZE     9
        !           500: #define MAX_ISA_ADDR    0x03ff
        !           501: #define MIN_EISA_ADDR   0x1c88
        !           502: #define MAX_EISA_ADDR   0xfc88
        !           503: #define BSY_ASSERTED      0x80
        !           504: #define DRQ_ASSERTED      0x08
        !           505: #define ABSY_ASSERTED     0x01
        !           506: #define IRQ_ASSERTED      0x02
        !           507: #define READ_CONFIG_PIO   0xf0
        !           508: #define SET_CONFIG_PIO    0xf1
        !           509: #define SEND_CP_PIO       0xf2
        !           510: #define RECEIVE_SP_PIO    0xf3
        !           511: #define TRUNCATE_XFR_PIO  0xf4
        !           512: #define RESET_PIO         0xf9
        !           513: #define READ_CONFIG_DMA   0xfd
        !           514: #define SET_CONFIG_DMA    0xfe
        !           515: #define SEND_CP_DMA       0xff
        !           516: #define ASOK              0x00
        !           517: #define ASST              0x01
        !           518: 
        !           519: #define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr)[0])
        !           520: #define YESNO(a) ((a) ? 'y' : 'n')
        !           521: #define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM)
        !           522: 
        !           523: /* "EATA", in Big Endian format */
        !           524: #define EATA_SIGNATURE 0x41544145
        !           525: 
        !           526: /* Number of valid bytes in the board config structure for EATA 2.0x */
        !           527: #define EATA_2_0A_SIZE 28
        !           528: #define EATA_2_0B_SIZE 30
        !           529: #define EATA_2_0C_SIZE 34
        !           530: 
        !           531: /* Board info structure */
        !           532: struct eata_info {
        !           533:    ulong  data_len;     /* Number of valid bytes after this field */
        !           534:    ulong  sign;         /* ASCII "EATA" signature */
        !           535:    unchar        :4,    /* unused low nibble */
        !           536:           version:4;    /* EATA version, should be 0x1 */
        !           537:    unchar  ocsena:1,    /* Overlap Command Support Enabled */
        !           538:            tarsup:1,    /* Target Mode Supported */
        !           539:            trnxfr:1,    /* Truncate Transfer Cmd NOT Necessary */
        !           540:            morsup:1,    /* More Supported */
        !           541:            dmasup:1,    /* DMA Supported */
        !           542:            drqvld:1,    /* DRQ Index (DRQX) is valid */
        !           543:               ata:1,    /* This is an ATA device */
        !           544:            haaval:1;    /* Host Adapter Address Valid */
        !           545:    ushort cp_pad_len;   /* Number of pad bytes after cp_len */
        !           546:    unchar host_addr[4]; /* Host Adapter SCSI ID for channels 3, 2, 1, 0 */
        !           547:    ulong  cp_len;       /* Number of valid bytes in cp */
        !           548:    ulong  sp_len;       /* Number of valid bytes in sp */
        !           549:    ushort queue_size;   /* Max number of cp that can be queued */
        !           550:    ushort unused;
        !           551:    ushort scatt_size;   /* Max number of entries in scatter/gather table */
        !           552:    unchar     irq:4,    /* Interrupt Request assigned to this controller */
        !           553:            irq_tr:1,    /* 0 for edge triggered, 1 for level triggered */
        !           554:            second:1,    /* 1 if this is a secondary (not primary) controller */
        !           555:              drqx:2;    /* DRQ Index (0=DMA0, 1=DMA7, 2=DMA6, 3=DMA5) */
        !           556:    unchar  sync;        /* 1 if scsi target id 7...0 is running sync scsi */
        !           557: 
        !           558:    /* Structure extension defined in EATA 2.0B */
        !           559:    unchar  isaena:1,    /* ISA i/o addressing is disabled/enabled */
        !           560:          forcaddr:1,    /* Port address has been forced */
        !           561:          large_sg:1,    /* 1 if large SG lists are supported */
        !           562:              res1:1,
        !           563:                  :4;
        !           564:    unchar  max_id:5,    /* Max SCSI target ID number */
        !           565:          max_chan:3;    /* Max SCSI channel number on this board */
        !           566: 
        !           567:    /* Structure extension defined in EATA 2.0C */
        !           568:    unchar   max_lun;    /* Max SCSI LUN number */
        !           569:    unchar        :4,
        !           570:                m1:1,    /* This is a PCI with an M1 chip installed */
        !           571:           idquest:1,    /* RAIDNUM returned is questionable */
        !           572:               pci:1,    /* This board is PCI */
        !           573:              eisa:1;    /* This board is EISA */
        !           574:    unchar   raidnum;    /* Uniquely identifies this HBA in a system */
        !           575:    unchar   notused;
        !           576: 
        !           577:    ushort ipad[247];
        !           578:    };
        !           579: 
        !           580: /* Board config structure */
        !           581: struct eata_config {
        !           582:    ushort len;          /* Number of bytes following this field */
        !           583:    unchar edis:1,       /* Disable EATA interface after config command */
        !           584:          ocena:1,       /* Overlapped Commands Enabled */
        !           585:         mdpena:1,       /* Transfer all Modified Data Pointer Messages */
        !           586:         tarena:1,       /* Target Mode Enabled for this controller */
        !           587:               :4;
        !           588:    unchar cpad[511];
        !           589:    };
        !           590: 
        !           591: /* Returned status packet structure */
        !           592: struct mssp {
        !           593:    unchar adapter_status:7,    /* State related to current command */
        !           594:                      eoc:1;    /* End Of Command (1 = command completed) */
        !           595:    unchar target_status;       /* SCSI status received after data transfer */
        !           596:    unchar unused[2];
        !           597:    ulong inv_res_len;          /* Number of bytes not transferred */
        !           598:    struct mscp *cpp;           /* Address set in cp */
        !           599:    char mess[12];
        !           600:    };
        !           601: 
        !           602: struct sg_list {
        !           603:    unsigned int address;                /* Segment Address */
        !           604:    unsigned int num_bytes;              /* Segment Length */
        !           605:    };
        !           606: 
        !           607: /* MailBox SCSI Command Packet */
        !           608: struct mscp {
        !           609:    unchar  sreset:1,     /* SCSI Bus Reset Signal should be asserted */
        !           610:              init:1,     /* Re-initialize controller and self test */
        !           611:            reqsen:1,     /* Transfer Request Sense Data to addr using DMA */
        !           612:                sg:1,     /* Use Scatter/Gather */
        !           613:                  :1,
        !           614:            interp:1,     /* The controller interprets cp, not the target */
        !           615:              dout:1,     /* Direction of Transfer is Out (Host to Target) */
        !           616:               din:1;     /* Direction of Transfer is In (Target to Host) */
        !           617:    unchar sense_len;     /* Request Sense Length */
        !           618:    unchar unused[3];
        !           619:    unchar  fwnest:1,     /* Send command to a component of an Array Group */
        !           620:                  :7;
        !           621:    unchar phsunit:1,     /* Send to Target Physical Unit (bypass RAID) */
        !           622:               iat:1,     /* Inhibit Address Translation */
        !           623:             hbaci:1,     /* Inhibit HBA Caching for this command */
        !           624:                  :5;
        !           625:    unchar  target:5,     /* SCSI target ID */
        !           626:           channel:3;     /* SCSI channel number */
        !           627:    unchar     lun:5,     /* SCSI logical unit number */
        !           628:            luntar:1,     /* This cp is for Target (not LUN) */
        !           629:            dispri:1,     /* Disconnect Privilege granted */
        !           630:               one:1;     /* 1 */
        !           631:    unchar mess[3];       /* Massage to/from Target */
        !           632:    unchar cdb[12];       /* Command Descriptor Block */
        !           633:    ulong  data_len;      /* If sg=0 Data Length, if sg=1 sglist length */
        !           634:    struct mscp *cpp;     /* Address to be returned in sp */
        !           635:    ulong  data_address;  /* If sg=0 Data Address, if sg=1 sglist address */
        !           636:    ulong  sp_addr;       /* Address where sp is DMA'ed when cp completes */
        !           637:    ulong  sense_addr;    /* Address where Sense Data is DMA'ed on error */
        !           638:    Scsi_Cmnd *SCpnt;
        !           639:    unsigned int index;   /* cp index */
        !           640:    struct sg_list *sglist;
        !           641:    };
        !           642: 
        !           643: struct hostdata {
        !           644:    struct mscp cp[MAX_MAILBOXES];       /* Mailboxes for this board */
        !           645:    unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */
        !           646:    unsigned int last_cp_used;           /* Index of last mailbox used */
        !           647:    unsigned int iocount;                /* Total i/o done for this board */
        !           648:    int board_number;                    /* Number of this board */
        !           649:    char board_name[16];                 /* Name of this board */
        !           650:    char board_id[256];                  /* data from INQUIRY on this board */
        !           651:    int in_reset;                        /* True if board is doing a reset */
        !           652:    int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */
        !           653:    int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If TRUE redo i/o on target */
        !           654:    unsigned int retries;                /* Number of internal retries */
        !           655:    unsigned long last_retried_pid;      /* Pid of last retried command */
        !           656:    unsigned char subversion;            /* Bus type, either ISA or EISA/PCI */
        !           657:    unsigned char protocol_rev;          /* EATA 2.0 rev., 'A' or 'B' or 'C' */
        !           658:    struct mssp sp[2];                   /* Returned status for this board */
        !           659:    };
        !           660: 
        !           661: static struct Scsi_Host *sh[MAX_BOARDS + 1];
        !           662: static const char *driver_name = "EATA";
        !           663: static char sha[MAX_BOARDS];
        !           664: 
        !           665: /* Initialize num_boards so that ihdlr can work while detect is in progress */
        !           666: static unsigned int num_boards = MAX_BOARDS;
        !           667: 
        !           668: static unsigned long io_port[] __initdata = {
        !           669: 
        !           670:    /* Space for MAX_INT_PARAM ports usable while loading as a module */
        !           671:    SKIP,    SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,
        !           672:    SKIP,    SKIP,
        !           673: 
        !           674:    /* First ISA */
        !           675:    0x1f0,
        !           676: 
        !           677:    /* Space for MAX_PCI ports possibly reported by PCI_BIOS */
        !           678:    SKIP,    SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,
        !           679:    SKIP,    SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,   SKIP,
        !           680: 
        !           681:    /* MAX_EISA ports */
        !           682:    0x1c88, 0x2c88, 0x3c88, 0x4c88, 0x5c88, 0x6c88, 0x7c88, 0x8c88,
        !           683:    0x9c88, 0xac88, 0xbc88, 0xcc88, 0xdc88, 0xec88, 0xfc88,
        !           684: 
        !           685:    /* Other (MAX_ISA - 1) ports */
        !           686:    0x170,  0x230,  0x330,
        !           687: 
        !           688:    /* End of list */
        !           689:    0x0
        !           690:    };
        !           691: 
        !           692: #define HD(board) ((struct hostdata *) &sh[board]->hostdata)
        !           693: #define BN(board) (HD(board)->board_name)
        !           694: 
        !           695: #define H2DEV(x) htonl(x)
        !           696: #define DEV2H(x) H2DEV(x)
        !           697: #define V2DEV(addr) ((addr) ? H2DEV(virt_to_bus((void *)addr)) : 0)
        !           698: #define DEV2V(addr) ((addr) ? DEV2H(bus_to_virt((unsigned long)addr)) : 0)
        !           699: 
        !           700: static void do_interrupt_handler(int, void *, struct pt_regs *);
        !           701: static void flush_dev(Scsi_Device *, unsigned long, unsigned int, unsigned int);
        !           702: static int do_trace = FALSE;
        !           703: static int setup_done = FALSE;
        !           704: static int link_statistics = 0;
        !           705: static int tag_mode = TAG_MIXED;
        !           706: static int ext_tran = FALSE;
        !           707: static int rev_scan = TRUE;
        !           708: 
        !           709: #if defined(CONFIG_SCSI_EATA_TAGGED_QUEUE)
        !           710: static int tagged_comm = TRUE;
        !           711: #else
        !           712: static int tagged_comm = FALSE;
        !           713: #endif
        !           714: 
        !           715: #if defined(CONFIG_SCSI_EATA_LINKED_COMMANDS)
        !           716: static int linked_comm = TRUE;
        !           717: #else
        !           718: static int linked_comm = FALSE;
        !           719: #endif
        !           720: 
        !           721: #if defined(CONFIG_SCSI_EATA_MAX_TAGS)
        !           722: static int max_queue_depth = CONFIG_SCSI_EATA_MAX_TAGS;
        !           723: #else
        !           724: static int max_queue_depth = MAX_CMD_PER_LUN;
        !           725: #endif
        !           726: 
        !           727: static void select_queue_depths(struct Scsi_Host *host, Scsi_Device *devlist) {
        !           728:    Scsi_Device *dev;
        !           729:    int j, ntag = 0, nuntag = 0, tqd, utqd;
        !           730:    IRQ_FLAGS
        !           731: 
        !           732:    IRQ_LOCK_SAVE
        !           733:    j = ((struct hostdata *) host->hostdata)->board_number;
        !           734: 
        !           735:    for(dev = devlist; dev; dev = dev->next) {
        !           736: 
        !           737:       if (dev->host != host) continue;
        !           738: 
        !           739:       if (TLDEV(dev->type) && (dev->tagged_supported || linked_comm))
        !           740:          ntag++;
        !           741:       else
        !           742:          nuntag++;
        !           743:       }
        !           744: 
        !           745:    utqd = MAX_CMD_PER_LUN;
        !           746: 
        !           747:    tqd = (host->can_queue - utqd * nuntag) / (ntag ? ntag : 1);
        !           748: 
        !           749:    if (tqd > max_queue_depth) tqd = max_queue_depth;
        !           750: 
        !           751:    if (tqd < MAX_CMD_PER_LUN) tqd = MAX_CMD_PER_LUN;
        !           752: 
        !           753:    for(dev = devlist; dev; dev = dev->next) {
        !           754:       char *tag_suffix = "", *link_suffix = "";
        !           755: 
        !           756:       if (dev->host != host) continue;
        !           757: 
        !           758:       if (TLDEV(dev->type) && (dev->tagged_supported || linked_comm))
        !           759:          dev->queue_depth = tqd;
        !           760:       else
        !           761:          dev->queue_depth = utqd;
        !           762: 
        !           763:       if (TLDEV(dev->type)) {
        !           764:          if (linked_comm && dev->queue_depth > 2)
        !           765:             link_suffix = ", sorted";
        !           766:          else
        !           767:             link_suffix = ", unsorted";
        !           768:          }
        !           769: 
        !           770:       if (tagged_comm && dev->tagged_supported && TLDEV(dev->type)) {
        !           771:          dev->tagged_queue = 1;
        !           772:          dev->current_tag = 1;
        !           773:          }
        !           774: 
        !           775:       if (dev->tagged_supported && TLDEV(dev->type) && dev->tagged_queue)
        !           776:          tag_suffix = ", tagged";
        !           777:       else if (dev->tagged_supported && TLDEV(dev->type))
        !           778:          tag_suffix = ", untagged";
        !           779: 
        !           780:       printk("%s: scsi%d, channel %d, id %d, lun %d, cmds/lun %d%s%s.\n",
        !           781:              BN(j), host->host_no, dev->channel, dev->id, dev->lun,
        !           782:              dev->queue_depth, link_suffix, tag_suffix);
        !           783:       }
        !           784: 
        !           785:    IRQ_UNLOCK_RESTORE
        !           786:    return;
        !           787: }
        !           788: 
        !           789: static inline int wait_on_busy(unsigned long iobase, unsigned int loop) {
        !           790: 
        !           791:    while (inb(iobase + REG_AUX_STATUS) & ABSY_ASSERTED) {
        !           792:       udelay(1L);
        !           793:       if (--loop == 0) return TRUE;
        !           794:       }
        !           795: 
        !           796:    return FALSE;
        !           797: }
        !           798: 
        !           799: static inline int do_dma(unsigned long iobase, unsigned int addr, unchar cmd) {
        !           800: 
        !           801:    if (wait_on_busy(iobase, (addr ? MAXLOOP * 100 : MAXLOOP))) return TRUE;
        !           802: 
        !           803:    if ((addr = V2DEV(addr))) {
        !           804:       outb((char) (addr >> 24), iobase + REG_LOW);
        !           805:       outb((char) (addr >> 16), iobase + REG_LM);
        !           806:       outb((char) (addr >> 8),  iobase + REG_MID);
        !           807:       outb((char)  addr,        iobase + REG_MSB);
        !           808:       }
        !           809: 
        !           810:    outb(cmd, iobase + REG_CMD);
        !           811:    return FALSE;
        !           812: }
        !           813: 
        !           814: static inline int read_pio(unsigned long iobase, ushort *start, ushort *end) {
        !           815:    unsigned int loop = MAXLOOP;
        !           816:    ushort *p;
        !           817: 
        !           818:    for (p = start; p <= end; p++) {
        !           819: 
        !           820:       while (!(inb(iobase + REG_STATUS) & DRQ_ASSERTED)) {
        !           821:          udelay(1L);
        !           822:          if (--loop == 0) return TRUE;
        !           823:          }
        !           824: 
        !           825:       loop = MAXLOOP;
        !           826:       *p = inw(iobase);
        !           827:       }
        !           828: 
        !           829:    return FALSE;
        !           830: }
        !           831: 
        !           832: __initfunc (static inline int
        !           833:             get_pci_irq(unsigned long port_base, unsigned char *apic_irq)) {
        !           834: 
        !           835: #if defined(CONFIG_PCI)
        !           836: 
        !           837: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,93)
        !           838: 
        !           839:    unsigned int addr;
        !           840:    struct pci_dev *dev = NULL;
        !           841: 
        !           842:    if (!pci_present()) return FALSE;
        !           843: 
        !           844:    while((dev = pci_find_class(PCI_CLASS_STORAGE_SCSI << 8, dev))) {
        !           845: 
        !           846:       if (pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &addr)) continue;
        !           847: 
        !           848: #if defined(DEBUG_PCI_DETECT)
        !           849:       printk("%s: get_pci_irq, bus %d, devfn 0x%x, addr 0x%x, apic_irq %u.\n",
        !           850:              driver_name, dev->bus->number, dev->devfn, addr, dev->irq);
        !           851: #endif
        !           852: 
        !           853:       if ((addr & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
        !           854:              continue;
        !           855: 
        !           856:       if ((addr & PCI_BASE_ADDRESS_IO_MASK) + PCI_BASE_ADDRESS_0 == port_base) {
        !           857:          *apic_irq = dev->irq;
        !           858:          return TRUE;
        !           859:          }
        !           860: 
        !           861:       }
        !           862: 
        !           863: #endif /* end new style PCI code */
        !           864: 
        !           865: #endif /* end CONFIG_PCI */
        !           866: 
        !           867:    return FALSE;
        !           868: }
        !           869: 
        !           870: __initfunc (static inline int port_detect \
        !           871:       (unsigned long port_base, unsigned int j, Scsi_Host_Template *tpnt)) {
        !           872:    unsigned char irq, dma_channel, subversion, i;
        !           873:    unsigned char protocol_rev, apic_irq;
        !           874:    struct eata_info info;
        !           875:    char *bus_type, dma_name[16], tag_type;
        !           876: 
        !           877:    /* Allowed DMA channels for ISA (0 indicates reserved) */
        !           878:    unsigned char dma_channel_table[4] = { 5, 6, 7, 0 };
        !           879: 
        !           880:    char name[16];
        !           881: 
        !           882:    sprintf(name, "%s%d", driver_name, j);
        !           883: 
        !           884:    if(check_region(port_base, REGION_SIZE)) {
        !           885:       printk("%s: address 0x%03lx in use, skipping probe.\n", name, port_base);
        !           886:       return FALSE;
        !           887:       }
        !           888: 
        !           889:    if (do_dma(port_base, 0, READ_CONFIG_PIO)) return FALSE;
        !           890: 
        !           891:    /* Read the info structure */
        !           892:    if (read_pio(port_base, (ushort *)&info, (ushort *)&info.ipad[0]))
        !           893:       return FALSE;
        !           894: 
        !           895:    /* Check the controller "EATA" signature */
        !           896:    if (info.sign != EATA_SIGNATURE) return FALSE;
        !           897: 
        !           898:    if (DEV2H(info.data_len) < EATA_2_0A_SIZE) {
        !           899:       printk("%s: config structure size (%ld bytes) too short, detaching.\n",
        !           900:              name, DEV2H(info.data_len));
        !           901:       return FALSE;
        !           902:       }
        !           903:    else if (DEV2H(info.data_len) == EATA_2_0A_SIZE)
        !           904:       protocol_rev = 'A';
        !           905:    else if (DEV2H(info.data_len) == EATA_2_0B_SIZE)
        !           906:       protocol_rev = 'B';
        !           907:    else
        !           908:       protocol_rev = 'C';
        !           909: 
        !           910:    if (!setup_done && j > 0 && j <= MAX_PCI) {
        !           911:       bus_type = "PCI";
        !           912:       subversion = ESA;
        !           913:       }
        !           914:    else if (port_base > MAX_EISA_ADDR || (protocol_rev == 'C' && info.pci)) {
        !           915:       bus_type = "PCI";
        !           916:       subversion = ESA;
        !           917:       }
        !           918:    else if (port_base >= MIN_EISA_ADDR || (protocol_rev == 'C' && info.eisa)) {
        !           919:       bus_type = "EISA";
        !           920:       subversion = ESA;
        !           921:       }
        !           922:    else if (protocol_rev == 'C' && !info.eisa && !info.pci) {
        !           923:       bus_type = "ISA";
        !           924:       subversion = ISA;
        !           925:       }
        !           926:    else if (port_base > MAX_ISA_ADDR) {
        !           927:       bus_type = "PCI";
        !           928:       subversion = ESA;
        !           929:       }
        !           930:    else {
        !           931:       bus_type = "ISA";
        !           932:       subversion = ISA;
        !           933:       }
        !           934: 
        !           935:    if (!info.haaval || info.ata) {
        !           936:       printk("%s: address 0x%03lx, unusable %s board (%d%d), detaching.\n",
        !           937:              name, port_base, bus_type, info.haaval, info.ata);
        !           938:       return FALSE;
        !           939:       }
        !           940: 
        !           941:    if (info.drqvld) {
        !           942: 
        !           943:       if (subversion ==  ESA)
        !           944:          printk("%s: warning, weird %s board using DMA.\n", name, bus_type);
        !           945: 
        !           946:       subversion = ISA;
        !           947:       dma_channel = dma_channel_table[3 - info.drqx];
        !           948:       }
        !           949:    else {
        !           950: 
        !           951:       if (subversion ==  ISA)
        !           952:          printk("%s: warning, weird %s board not using DMA.\n", name, bus_type);
        !           953: 
        !           954:       subversion = ESA;
        !           955:       dma_channel = NO_DMA;
        !           956:       }
        !           957: 
        !           958:    if (!info.dmasup)
        !           959:       printk("%s: warning, DMA protocol support not asserted.\n", name);
        !           960: 
        !           961:    irq = info.irq;
        !           962: 
        !           963:    if (subversion == ESA && !info.irq_tr)
        !           964:       printk("%s: warning, LEVEL triggering is suggested for IRQ %u.\n",
        !           965:              name, irq);
        !           966: 
        !           967:    if (get_pci_irq(port_base, &apic_irq) && (irq != apic_irq)) {
        !           968:       printk("%s: IRQ %u mapped to IO-APIC IRQ %u.\n", name, irq, apic_irq);
        !           969:       irq = apic_irq;
        !           970:       }
        !           971: 
        !           972:    /* Board detected, allocate its IRQ */
        !           973:    if (request_irq(irq, do_interrupt_handler,
        !           974:              SA_INTERRUPT | ((subversion == ESA) ? SA_SHIRQ : 0),
        !           975:              driver_name, (void *) &sha[j])) {
        !           976:       printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq);
        !           977:       return FALSE;
        !           978:       }
        !           979: 
        !           980:    if (subversion == ISA && request_dma(dma_channel, driver_name)) {
        !           981:       printk("%s: unable to allocate DMA channel %u, detaching.\n",
        !           982:              name, dma_channel);
        !           983:       free_irq(irq, &sha[j]);
        !           984:       return FALSE;
        !           985:       }
        !           986: 
        !           987: #if defined(FORCE_CONFIG)
        !           988:    {
        !           989:    struct eata_config config;
        !           990: 
        !           991:    /* Set board configuration */
        !           992:    memset((char *)&config, 0, sizeof(struct eata_config));
        !           993:    config.len = (ushort) htons((ushort)510);
        !           994:    config.ocena = TRUE;
        !           995: 
        !           996:    if (do_dma(port_base, (unsigned int)&config, SET_CONFIG_DMA)) {
        !           997:       printk("%s: busy timeout sending configuration, detaching.\n", name);
        !           998:       return FALSE;
        !           999:       }
        !          1000:    }
        !          1001: #endif
        !          1002: 
        !          1003:    sh[j] = scsi_register(tpnt, sizeof(struct hostdata));
        !          1004: 
        !          1005:    if (sh[j] == NULL) {
        !          1006:       printk("%s: unable to register host, detaching.\n", name);
        !          1007: 
        !          1008:       free_irq(irq, &sha[j]);
        !          1009: 
        !          1010:       if (subversion == ISA) free_dma(dma_channel);
        !          1011: 
        !          1012:       return FALSE;
        !          1013:       }
        !          1014: 
        !          1015:    sh[j]->io_port = port_base;
        !          1016:    sh[j]->unique_id = port_base;
        !          1017:    sh[j]->n_io_port = REGION_SIZE;
        !          1018:    sh[j]->dma_channel = dma_channel;
        !          1019:    sh[j]->irq = irq;
        !          1020:    sh[j]->sg_tablesize = (ushort) ntohs(info.scatt_size);
        !          1021:    sh[j]->this_id = (ushort) info.host_addr[3];
        !          1022:    sh[j]->can_queue = (ushort) ntohs(info.queue_size);
        !          1023:    sh[j]->cmd_per_lun = MAX_CMD_PER_LUN;
        !          1024:    sh[j]->select_queue_depths = select_queue_depths;
        !          1025: 
        !          1026:    /* Register the I/O space that we use */
        !          1027:    request_region(sh[j]->io_port, sh[j]->n_io_port, driver_name);
        !          1028: 
        !          1029:    memset(HD(j), 0, sizeof(struct hostdata));
        !          1030:    HD(j)->subversion = subversion;
        !          1031:    HD(j)->protocol_rev = protocol_rev;
        !          1032:    HD(j)->board_number = j;
        !          1033: 
        !          1034:    if (HD(j)->subversion == ESA)
        !          1035:       sh[j]->unchecked_isa_dma = FALSE;
        !          1036:    else {
        !          1037:       sh[j]->wish_block = TRUE;
        !          1038:       sh[j]->unchecked_isa_dma = TRUE;
        !          1039:       disable_dma(dma_channel);
        !          1040:       clear_dma_ff(dma_channel);
        !          1041:       set_dma_mode(dma_channel, DMA_MODE_CASCADE);
        !          1042:       enable_dma(dma_channel);
        !          1043:       }
        !          1044: 
        !          1045:    strcpy(BN(j), name);
        !          1046: 
        !          1047:    /* DPT PM2012 does not allow to detect sg_tablesize correctly */
        !          1048:    if (sh[j]->sg_tablesize > MAX_SGLIST || sh[j]->sg_tablesize < 2) {
        !          1049:       printk("%s: detect, wrong n. of SG lists %d, fixed.\n",
        !          1050:              BN(j), sh[j]->sg_tablesize);
        !          1051:       sh[j]->sg_tablesize = MAX_SGLIST;
        !          1052:       }
        !          1053: 
        !          1054:    /* DPT PM2012 does not allow to detect can_queue correctly */
        !          1055:    if (sh[j]->can_queue > MAX_MAILBOXES || sh[j]->can_queue  < 2) {
        !          1056:       printk("%s: detect, wrong n. of mbox %d, fixed.\n",
        !          1057:              BN(j), sh[j]->can_queue);
        !          1058:       sh[j]->can_queue = MAX_MAILBOXES;
        !          1059:       }
        !          1060: 
        !          1061:    if (protocol_rev != 'A') {
        !          1062: 
        !          1063:       if (info.max_chan > 0 && info.max_chan < MAX_CHANNEL)
        !          1064:          sh[j]->max_channel = info.max_chan;
        !          1065: 
        !          1066:       if (info.max_id > 7 && info.max_id < MAX_TARGET)
        !          1067:          sh[j]->max_id = info.max_id + 1;
        !          1068: 
        !          1069:       if (info.large_sg && sh[j]->sg_tablesize == MAX_SGLIST)
        !          1070:          sh[j]->sg_tablesize = MAX_LARGE_SGLIST;
        !          1071:       }
        !          1072: 
        !          1073:    if (protocol_rev == 'C') {
        !          1074: 
        !          1075:       if (info.max_lun > 7 && info.max_lun < MAX_LUN)
        !          1076:          sh[j]->max_lun = info.max_lun + 1;
        !          1077:       }
        !          1078: 
        !          1079:    if (dma_channel == NO_DMA) sprintf(dma_name, "%s", "BMST");
        !          1080:    else                       sprintf(dma_name, "DMA %u", dma_channel);
        !          1081: 
        !          1082:    for (i = 0; i < sh[j]->can_queue; i++)
        !          1083:       if (! ((&HD(j)->cp[i])->sglist = kmalloc(
        !          1084:             sh[j]->sg_tablesize * sizeof(struct sg_list),
        !          1085:             (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) {
        !          1086:          printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i);
        !          1087:          eata2x_release(sh[j]);
        !          1088:          return FALSE;
        !          1089:          }
        !          1090: 
        !          1091:    if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN)
        !          1092:        max_queue_depth = MAX_TAGGED_CMD_PER_LUN;
        !          1093: 
        !          1094:    if (max_queue_depth < MAX_CMD_PER_LUN) max_queue_depth = MAX_CMD_PER_LUN;
        !          1095: 
        !          1096:    if (tagged_comm) {
        !          1097:       if      (tag_mode == TAG_SIMPLE)  tag_type = '1';
        !          1098:       else if (tag_mode == TAG_HEAD)    tag_type = '2';
        !          1099:       else if (tag_mode == TAG_ORDERED) tag_type = '3';
        !          1100:       else                              tag_type = 'y';
        !          1101:       }
        !          1102:    else                                 tag_type = 'n';
        !          1103: 
        !          1104: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,101)
        !          1105:    sh[j]->hostt->use_new_eh_code = use_new_eh_code;
        !          1106: #else
        !          1107:    use_new_eh_code = FALSE;
        !          1108: #endif
        !          1109: 
        !          1110:    if (j == 0) {
        !          1111:       printk("EATA/DMA 2.0x: Copyright (C) 1994-1998 Dario Ballabio.\n");
        !          1112:       printk("%s config options -> tc:%c, lc:%c, mq:%d, eh:%c, rs:%c, et:%c.\n",
        !          1113:              driver_name, tag_type, YESNO(linked_comm), max_queue_depth,
        !          1114:              YESNO(use_new_eh_code), YESNO(rev_scan), YESNO(ext_tran));
        !          1115:       }
        !          1116: 
        !          1117:    printk("%s: 2.0%c, %s 0x%03lx, IRQ %u, %s, SG %d, MB %d.\n",
        !          1118:           BN(j), HD(j)->protocol_rev, bus_type, (unsigned long)sh[j]->io_port,
        !          1119:           sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue);
        !          1120: 
        !          1121:    if (sh[j]->max_id > 8 || sh[j]->max_lun > 8)
        !          1122:       printk("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n",
        !          1123:              BN(j), sh[j]->max_id, sh[j]->max_lun);
        !          1124: 
        !          1125:    for (i = 0; i <= sh[j]->max_channel; i++)
        !          1126:       printk("%s: SCSI channel %u enabled, host target ID %d.\n",
        !          1127:              BN(j), i, info.host_addr[3 - i]);
        !          1128: 
        !          1129: #if defined(DEBUG_DETECT)
        !          1130:    printk("%s: Vers. 0x%x, ocs %u, tar %u, trnxfr %u, more %u, SYNC 0x%x, "\
        !          1131:           "sec. %u, infol %ld, cpl %ld spl %ld.\n", name, info.version,
        !          1132:           info.ocsena, info.tarsup, info.trnxfr, info.morsup, info.sync,
        !          1133:           info.second, DEV2H(info.data_len), DEV2H(info.cp_len),
        !          1134:           DEV2H(info.sp_len));
        !          1135: 
        !          1136:    if (protocol_rev == 'B' || protocol_rev == 'C')
        !          1137:       printk("%s: isaena %u, forcaddr %u, max_id %u, max_chan %u, "\
        !          1138:              "large_sg %u, res1 %u.\n", name, info.isaena, info.forcaddr,
        !          1139:              info.max_id, info.max_chan, info.large_sg, info.res1);
        !          1140: 
        !          1141:    if (protocol_rev == 'C')
        !          1142:       printk("%s: max_lun %u, m1 %u, idquest %u, pci %u, eisa %u, "\
        !          1143:              "raidnum %u.\n", name, info.max_lun, info.m1, info.idquest,
        !          1144:              info.pci, info.eisa, info.raidnum);
        !          1145: #endif
        !          1146: 
        !          1147:    return TRUE;
        !          1148: }
        !          1149: 
        !          1150: __initfunc (void eata2x_setup(char *str, int *ints)) {
        !          1151:    int i, argc = ints[0];
        !          1152:    char *cur = str, *pc;
        !          1153: 
        !          1154:    if (argc > 0) {
        !          1155: 
        !          1156:       if (argc > MAX_INT_PARAM) argc = MAX_INT_PARAM;
        !          1157: 
        !          1158:       for (i = 0; i < argc; i++) io_port[i] = ints[i + 1];
        !          1159: 
        !          1160:       io_port[i] = 0;
        !          1161:       setup_done = TRUE;
        !          1162:       }
        !          1163: 
        !          1164:    while (cur && (pc = strchr(cur, ':'))) {
        !          1165:       int val = 0, c = *++pc;
        !          1166: 
        !          1167:       if (c == 'n' || c == 'N') val = FALSE;
        !          1168:       else if (c == 'y' || c == 'Y') val = TRUE;
        !          1169:       else val = (int) simple_strtoul(pc, NULL, 0);
        !          1170: 
        !          1171:       if (!strncmp(cur, "lc:", 3)) linked_comm = val;
        !          1172:       else if (!strncmp(cur, "tc:", 3)) tagged_comm = val;
        !          1173:       else if (!strncmp(cur, "tm:", 3)) tag_mode = val;
        !          1174:       else if (!strncmp(cur, "mq:", 3))  max_queue_depth = val;
        !          1175:       else if (!strncmp(cur, "ls:", 3))  link_statistics = val;
        !          1176:       else if (!strncmp(cur, "eh:", 3))  use_new_eh_code = val;
        !          1177:       else if (!strncmp(cur, "et:", 3))  ext_tran = val;
        !          1178:       else if (!strncmp(cur, "rs:", 3))  rev_scan = val;
        !          1179: 
        !          1180:       if ((cur = strchr(cur, ','))) ++cur;
        !          1181:       }
        !          1182: 
        !          1183:    return;
        !          1184: }
        !          1185: 
        !          1186: __initfunc (static void add_pci_ports(void)) {
        !          1187: 
        !          1188: #if defined(CONFIG_PCI)
        !          1189: 
        !          1190:    unsigned int addr, k;
        !          1191: 
        !          1192: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,93)
        !          1193: 
        !          1194:    struct pci_dev *dev = NULL;
        !          1195: 
        !          1196:    if (!pci_present()) return;
        !          1197: 
        !          1198:    for (k = 0; k < MAX_PCI; k++) {
        !          1199: 
        !          1200:       if (!(dev = pci_find_class(PCI_CLASS_STORAGE_SCSI << 8, dev))) break;
        !          1201: 
        !          1202:       if (pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &addr)) continue;
        !          1203: 
        !          1204: #if defined(DEBUG_PCI_DETECT)
        !          1205:       printk("%s: detect, seq. %d, bus %d, devfn 0x%x, addr 0x%x.\n",
        !          1206:              driver_name, k, dev->bus->number, dev->devfn, addr);
        !          1207: #endif
        !          1208: 
        !          1209:       if ((addr & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
        !          1210:              continue;
        !          1211: 
        !          1212:       /* Order addresses according to rev_scan value */
        !          1213:       io_port[MAX_INT_PARAM + (rev_scan ? (MAX_PCI - k) : (1 + k))] =
        !          1214:              (addr & PCI_BASE_ADDRESS_IO_MASK) + PCI_BASE_ADDRESS_0;
        !          1215:       }
        !          1216: 
        !          1217: #else  /* else old style PCI code */
        !          1218: 
        !          1219:    unsigned short i = 0;
        !          1220:    unsigned char bus, devfn;
        !          1221: 
        !          1222:    if (!pcibios_present()) return;
        !          1223: 
        !          1224:    for (k = 0; k < MAX_PCI; k++) {
        !          1225: 
        !          1226:       if (pcibios_find_class(PCI_CLASS_STORAGE_SCSI << 8, i++, &bus, &devfn)
        !          1227:              != PCIBIOS_SUCCESSFUL) break;
        !          1228: 
        !          1229:       if (pcibios_read_config_dword(bus, devfn, PCI_BASE_ADDRESS_0, &addr)
        !          1230:              != PCIBIOS_SUCCESSFUL) continue;
        !          1231: 
        !          1232: #if defined(DEBUG_PCI_DETECT)
        !          1233:       printk("%s: detect, seq. %d, bus %d, devfn 0x%x, addr 0x%x.\n",
        !          1234:              driver_name, k, bus, devfn, addr);
        !          1235: #endif
        !          1236: 
        !          1237:       if ((addr & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
        !          1238:              continue;
        !          1239: 
        !          1240:       /* Order addresses according to rev_scan value */
        !          1241:       io_port[MAX_INT_PARAM + (rev_scan ? (MAX_PCI - k) : (1 + k))] =
        !          1242:              (addr & PCI_BASE_ADDRESS_IO_MASK) + PCI_BASE_ADDRESS_0;
        !          1243:       }
        !          1244: 
        !          1245: #endif /* end old style PCI code */
        !          1246: 
        !          1247: #endif /* end CONFIG_PCI */
        !          1248: 
        !          1249:    return;
        !          1250: }
        !          1251: 
        !          1252: __initfunc (int eata2x_detect(Scsi_Host_Template *tpnt)) {
        !          1253:    unsigned int j = 0, k;
        !          1254:    IRQ_FLAGS
        !          1255: 
        !          1256:    IRQ_LOCK_SAVE
        !          1257:    tpnt->proc_dir = &proc_scsi_eata2x;
        !          1258: 
        !          1259: #if defined(MODULE)
        !          1260:    /* io_port could have been modified when loading as a module */
        !          1261:    if(io_port[0] != SKIP) {
        !          1262:       setup_done = TRUE;
        !          1263:       io_port[MAX_INT_PARAM] = 0;
        !          1264:       }
        !          1265: #endif
        !          1266: 
        !          1267:    for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL;
        !          1268: 
        !          1269:    if (!setup_done) add_pci_ports();
        !          1270: 
        !          1271:    for (k = 0; io_port[k]; k++) {
        !          1272: 
        !          1273:       if (io_port[k] == SKIP) continue;
        !          1274: 
        !          1275:       if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++;
        !          1276:       }
        !          1277: 
        !          1278:    num_boards = j;
        !          1279:    IRQ_UNLOCK_RESTORE
        !          1280:    return j;
        !          1281: }
        !          1282: 
        !          1283: static inline void build_sg_list(struct mscp *cpp, Scsi_Cmnd *SCpnt) {
        !          1284:    unsigned int k;
        !          1285:    struct scatterlist *sgpnt;
        !          1286: 
        !          1287:    sgpnt = (struct scatterlist *) SCpnt->request_buffer;
        !          1288: 
        !          1289:    for (k = 0; k < SCpnt->use_sg; k++) {
        !          1290:       cpp->sglist[k].address = V2DEV(sgpnt[k].address);
        !          1291:       cpp->sglist[k].num_bytes = H2DEV(sgpnt[k].length);
        !          1292:       }
        !          1293: 
        !          1294:    cpp->data_address = V2DEV(cpp->sglist);
        !          1295:    cpp->data_len = H2DEV((SCpnt->use_sg * sizeof(struct sg_list)));
        !          1296: }
        !          1297: 
        !          1298: static inline int do_qcomm(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) {
        !          1299:    unsigned int i, j, k;
        !          1300:    struct mscp *cpp;
        !          1301:    struct mssp *spp;
        !          1302: 
        !          1303:    static const unsigned char data_out_cmds[] = {
        !          1304:       0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e,
        !          1305:       0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40,
        !          1306:       0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b
        !          1307:       };
        !          1308: 
        !          1309:    static const unsigned char data_none_cmds[] = {
        !          1310:       0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e,
        !          1311:       0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47,
        !          1312:       0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5
        !          1313:       };
        !          1314: 
        !          1315:    /* j is the board number */
        !          1316:    j = ((struct hostdata *) SCpnt->host->hostdata)->board_number;
        !          1317: 
        !          1318:    if (SCpnt->host_scribble)
        !          1319:       panic("%s: qcomm, pid %ld, SCpnt %p already active.\n",
        !          1320:             BN(j), SCpnt->pid, SCpnt);
        !          1321: 
        !          1322:    /* i is the mailbox number, look for the first free mailbox
        !          1323:       starting from last_cp_used */
        !          1324:    i = HD(j)->last_cp_used + 1;
        !          1325: 
        !          1326:    for (k = 0; k < sh[j]->can_queue; k++, i++) {
        !          1327: 
        !          1328:       if (i >= sh[j]->can_queue) i = 0;
        !          1329: 
        !          1330:       if (HD(j)->cp_stat[i] == FREE) {
        !          1331:          HD(j)->last_cp_used = i;
        !          1332:          break;
        !          1333:          }
        !          1334:       }
        !          1335: 
        !          1336:    if (k == sh[j]->can_queue) {
        !          1337:       printk("%s: qcomm, no free mailbox.\n", BN(j));
        !          1338:       return 1;
        !          1339:       }
        !          1340: 
        !          1341:    /* Set pointer to control packet structure */
        !          1342:    cpp = &HD(j)->cp[i];
        !          1343: 
        !          1344:    memset(cpp, 0, sizeof(struct mscp) - sizeof(struct sg_list *));
        !          1345: 
        !          1346:    /* Set pointer to status packet structure */
        !          1347:    spp = &HD(j)->sp[0];
        !          1348: 
        !          1349:    /* The EATA protocol uses Big Endian format */
        !          1350:    cpp->sp_addr = V2DEV(spp);
        !          1351: 
        !          1352:    cpp->cpp = cpp;
        !          1353:    SCpnt->scsi_done = done;
        !          1354:    cpp->index = i;
        !          1355:    SCpnt->host_scribble = (unsigned char *) &cpp->index;
        !          1356: 
        !          1357:    if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%d, pid %ld.\n",
        !          1358:                         BN(j), i, SCpnt->channel, SCpnt->target,
        !          1359:                         SCpnt->lun, SCpnt->pid);
        !          1360: 
        !          1361:    for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++)
        !          1362:      if (SCpnt->cmnd[0] == data_out_cmds[k]) {
        !          1363:         cpp->dout = TRUE;
        !          1364:         break;
        !          1365:         }
        !          1366: 
        !          1367:    if ((cpp->din = !cpp->dout))
        !          1368:       for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++)
        !          1369:         if (SCpnt->cmnd[0] == data_none_cmds[k]) {
        !          1370:            cpp->din = FALSE;
        !          1371:            break;
        !          1372:            }
        !          1373: 
        !          1374:    cpp->reqsen = TRUE;
        !          1375:    cpp->dispri = TRUE;
        !          1376: #if 0
        !          1377:    if (SCpnt->device->type == TYPE_TAPE) cpp->hbaci = TRUE;
        !          1378: #endif
        !          1379:    cpp->one = TRUE;
        !          1380:    cpp->channel = SCpnt->channel;
        !          1381:    cpp->target = SCpnt->target;
        !          1382:    cpp->lun = SCpnt->lun;
        !          1383:    cpp->SCpnt = SCpnt;
        !          1384:    cpp->sense_addr = V2DEV(SCpnt->sense_buffer);
        !          1385:    cpp->sense_len = sizeof SCpnt->sense_buffer;
        !          1386: 
        !          1387:    if (SCpnt->device->tagged_queue) {
        !          1388: 
        !          1389:       if (HD(j)->target_redo[SCpnt->target][SCpnt->channel] ||
        !          1390:             HD(j)->target_to[SCpnt->target][SCpnt->channel])
        !          1391:          cpp->mess[0] = ORDERED_QUEUE_TAG;
        !          1392:       else if (tag_mode == TAG_SIMPLE)  cpp->mess[0] = SIMPLE_QUEUE_TAG;
        !          1393:       else if (tag_mode == TAG_HEAD)    cpp->mess[0] = HEAD_OF_QUEUE_TAG;
        !          1394:       else if (tag_mode == TAG_ORDERED) cpp->mess[0] = ORDERED_QUEUE_TAG;
        !          1395:       else if (SCpnt->device->current_tag == 0)
        !          1396:          cpp->mess[0] = ORDERED_QUEUE_TAG;
        !          1397:       else if (SCpnt->device->current_tag == 1)
        !          1398:          cpp->mess[0] = HEAD_OF_QUEUE_TAG;
        !          1399:       else
        !          1400:          cpp->mess[0] = SIMPLE_QUEUE_TAG;
        !          1401: 
        !          1402:       cpp->mess[1] = SCpnt->device->current_tag++;
        !          1403:       }
        !          1404: 
        !          1405:    if (SCpnt->use_sg) {
        !          1406:       cpp->sg = TRUE;
        !          1407:       build_sg_list(cpp, SCpnt);
        !          1408:       }
        !          1409:    else {
        !          1410:       cpp->data_address = V2DEV(SCpnt->request_buffer);
        !          1411:       cpp->data_len = H2DEV(SCpnt->request_bufflen);
        !          1412:       }
        !          1413: 
        !          1414:    memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len);
        !          1415: 
        !          1416:    if (linked_comm && SCpnt->device->queue_depth > 2
        !          1417:                                      && TLDEV(SCpnt->device->type)) {
        !          1418:       HD(j)->cp_stat[i] = READY;
        !          1419:       flush_dev(SCpnt->device, SCpnt->request.sector, j, FALSE);
        !          1420:       return 0;
        !          1421:       }
        !          1422: 
        !          1423:    /* Send control packet to the board */
        !          1424:    if (do_dma(sh[j]->io_port, (unsigned int) cpp, SEND_CP_DMA)) {
        !          1425:       SCpnt->host_scribble = NULL;
        !          1426:       printk("%s: qcomm, target %d.%d:%d, pid %ld, adapter busy.\n",
        !          1427:              BN(j), SCpnt->channel, SCpnt->target, SCpnt->lun, SCpnt->pid);
        !          1428:       return 1;
        !          1429:       }
        !          1430: 
        !          1431:    HD(j)->cp_stat[i] = IN_USE;
        !          1432:    return 0;
        !          1433: }
        !          1434: 
        !          1435: int eata2x_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) {
        !          1436:    int rtn;
        !          1437:    IRQ_FLAGS
        !          1438: 
        !          1439:    IRQ_LOCK_SAVE
        !          1440:    rtn = do_qcomm(SCpnt, done);
        !          1441:    IRQ_UNLOCK_RESTORE
        !          1442:    return rtn;
        !          1443: }
        !          1444: 
        !          1445: static inline int do_old_abort(Scsi_Cmnd *SCarg) {
        !          1446:    unsigned int i, j;
        !          1447: 
        !          1448:    j = ((struct hostdata *) SCarg->host->hostdata)->board_number;
        !          1449: 
        !          1450:    if (SCarg->host_scribble == NULL ||
        !          1451:        (SCarg->serial_number_at_timeout &&
        !          1452:        (SCarg->serial_number != SCarg->serial_number_at_timeout))) {
        !          1453:       printk("%s: abort, target %d.%d:%d, pid %ld inactive.\n",
        !          1454:              BN(j), SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1455:       return SCSI_ABORT_NOT_RUNNING;
        !          1456:       }
        !          1457: 
        !          1458:    i = *(unsigned int *)SCarg->host_scribble;
        !          1459:    printk("%s: abort, mbox %d, target %d.%d:%d, pid %ld.\n",
        !          1460:           BN(j), i, SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1461: 
        !          1462:    if (i >= sh[j]->can_queue)
        !          1463:       panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j));
        !          1464: 
        !          1465:    if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
        !          1466:       printk("%s: abort, timeout error.\n", BN(j));
        !          1467:       return SCSI_ABORT_ERROR;
        !          1468:       }
        !          1469: 
        !          1470:    if (HD(j)->cp_stat[i] == FREE) {
        !          1471:       printk("%s: abort, mbox %d is free.\n", BN(j), i);
        !          1472:       return SCSI_ABORT_NOT_RUNNING;
        !          1473:       }
        !          1474: 
        !          1475:    if (HD(j)->cp_stat[i] == IN_USE) {
        !          1476:       printk("%s: abort, mbox %d is in use.\n", BN(j), i);
        !          1477: 
        !          1478:       if (SCarg != HD(j)->cp[i].SCpnt)
        !          1479:          panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
        !          1480:                BN(j), i, SCarg, HD(j)->cp[i].SCpnt);
        !          1481: 
        !          1482:       if (inb(sh[j]->io_port + REG_AUX_STATUS) & IRQ_ASSERTED)
        !          1483:          printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i);
        !          1484: 
        !          1485:       return SCSI_ABORT_SNOOZE;
        !          1486:       }
        !          1487: 
        !          1488:    if (HD(j)->cp_stat[i] == IN_RESET) {
        !          1489:       printk("%s: abort, mbox %d is in reset.\n", BN(j), i);
        !          1490:       return SCSI_ABORT_ERROR;
        !          1491:       }
        !          1492: 
        !          1493:    if (HD(j)->cp_stat[i] == LOCKED) {
        !          1494:       printk("%s: abort, mbox %d is locked.\n", BN(j), i);
        !          1495:       return SCSI_ABORT_NOT_RUNNING;
        !          1496:       }
        !          1497: 
        !          1498:    if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
        !          1499:       SCarg->result = DID_ABORT << 16;
        !          1500:       SCarg->host_scribble = NULL;
        !          1501:       HD(j)->cp_stat[i] = FREE;
        !          1502:       printk("%s, abort, mbox %d ready, DID_ABORT, pid %ld done.\n",
        !          1503:              BN(j), i, SCarg->pid);
        !          1504:       SCarg->scsi_done(SCarg);
        !          1505:       return SCSI_ABORT_SUCCESS;
        !          1506:       }
        !          1507: 
        !          1508:    panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i);
        !          1509: }
        !          1510: 
        !          1511: int eata2x_old_abort(Scsi_Cmnd *SCarg) {
        !          1512:    int rtn;
        !          1513:    IRQ_FLAGS
        !          1514: 
        !          1515:    IRQ_LOCK_SAVE
        !          1516:    rtn = do_old_abort(SCarg);
        !          1517:    IRQ_UNLOCK_RESTORE
        !          1518:    return rtn;
        !          1519: }
        !          1520: 
        !          1521: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,101)
        !          1522: 
        !          1523: static inline int do_abort(Scsi_Cmnd *SCarg) {
        !          1524:    unsigned int i, j;
        !          1525: 
        !          1526:    j = ((struct hostdata *) SCarg->host->hostdata)->board_number;
        !          1527: 
        !          1528:    if (SCarg->host_scribble == NULL) {
        !          1529:       printk("%s: abort, target %d.%d:%d, pid %ld inactive.\n",
        !          1530:              BN(j), SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1531:       return SUCCESS;
        !          1532:       }
        !          1533: 
        !          1534:    i = *(unsigned int *)SCarg->host_scribble;
        !          1535:    printk("%s: abort, mbox %d, target %d.%d:%d, pid %ld.\n",
        !          1536:           BN(j), i, SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1537: 
        !          1538:    if (i >= sh[j]->can_queue)
        !          1539:       panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j));
        !          1540: 
        !          1541:    if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
        !          1542:       printk("%s: abort, timeout error.\n", BN(j));
        !          1543:       return FAILED;
        !          1544:       }
        !          1545: 
        !          1546:    if (HD(j)->cp_stat[i] == FREE) {
        !          1547:       printk("%s: abort, mbox %d is free.\n", BN(j), i);
        !          1548:       return SUCCESS;
        !          1549:       }
        !          1550: 
        !          1551:    if (HD(j)->cp_stat[i] == IN_USE) {
        !          1552:       printk("%s: abort, mbox %d is in use.\n", BN(j), i);
        !          1553: 
        !          1554:       if (SCarg != HD(j)->cp[i].SCpnt)
        !          1555:          panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
        !          1556:                BN(j), i, SCarg, HD(j)->cp[i].SCpnt);
        !          1557: 
        !          1558:       if (inb(sh[j]->io_port + REG_AUX_STATUS) & IRQ_ASSERTED)
        !          1559:          printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i);
        !          1560: 
        !          1561:       if (SCarg->eh_state == SCSI_STATE_TIMEOUT) {
        !          1562:          SCarg->host_scribble = NULL;
        !          1563:          HD(j)->cp_stat[i] = FREE;
        !          1564:          printk("%s, abort, mbox %d, eh_state timeout, pid %ld.\n",
        !          1565:                 BN(j), i, SCarg->pid);
        !          1566:          return SUCCESS;
        !          1567:          }
        !          1568: 
        !          1569:       return FAILED;
        !          1570:       }
        !          1571: 
        !          1572:    if (HD(j)->cp_stat[i] == IN_RESET) {
        !          1573:       printk("%s: abort, mbox %d is in reset.\n", BN(j), i);
        !          1574:       return FAILED;
        !          1575:       }
        !          1576: 
        !          1577:    if (HD(j)->cp_stat[i] == LOCKED) {
        !          1578:       printk("%s: abort, mbox %d is locked.\n", BN(j), i);
        !          1579:       return SUCCESS;
        !          1580:       }
        !          1581: 
        !          1582:    if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
        !          1583:       SCarg->result = DID_ABORT << 16;
        !          1584:       SCarg->host_scribble = NULL;
        !          1585:       HD(j)->cp_stat[i] = FREE;
        !          1586:       printk("%s, abort, mbox %d ready, DID_ABORT, pid %ld done.\n",
        !          1587:              BN(j), i, SCarg->pid);
        !          1588:       SCarg->scsi_done(SCarg);
        !          1589:       return SUCCESS;
        !          1590:       }
        !          1591: 
        !          1592:    panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i);
        !          1593: }
        !          1594: 
        !          1595: int eata2x_abort(Scsi_Cmnd *SCarg) {
        !          1596: 
        !          1597:    return do_abort(SCarg);
        !          1598: }
        !          1599: 
        !          1600: #endif /* new_eh_code */
        !          1601: 
        !          1602: static inline int do_old_reset(Scsi_Cmnd *SCarg) {
        !          1603:    unsigned int i, j, time, k, c, limit = 0;
        !          1604:    int arg_done = FALSE;
        !          1605:    Scsi_Cmnd *SCpnt;
        !          1606: 
        !          1607:    j = ((struct hostdata *) SCarg->host->hostdata)->board_number;
        !          1608:    printk("%s: reset, enter, target %d.%d:%d, pid %ld.\n",
        !          1609:           BN(j), SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1610: 
        !          1611:    if (SCarg->host_scribble == NULL)
        !          1612:       printk("%s: reset, pid %ld inactive.\n", BN(j), SCarg->pid);
        !          1613: 
        !          1614:    if (SCarg->serial_number_at_timeout &&
        !          1615:        (SCarg->serial_number != SCarg->serial_number_at_timeout)) {
        !          1616:       printk("%s: reset, pid %ld, reset not running.\n", BN(j), SCarg->pid);
        !          1617:       return SCSI_RESET_NOT_RUNNING;
        !          1618:       }
        !          1619: 
        !          1620:    if (HD(j)->in_reset) {
        !          1621:       printk("%s: reset, exit, already in reset.\n", BN(j));
        !          1622:       return SCSI_RESET_ERROR;
        !          1623:       }
        !          1624: 
        !          1625:    if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
        !          1626:       printk("%s: reset, exit, timeout error.\n", BN(j));
        !          1627:       return SCSI_RESET_ERROR;
        !          1628:       }
        !          1629: 
        !          1630:    HD(j)->retries = 0;
        !          1631: 
        !          1632:    for (c = 0; c <= sh[j]->max_channel; c++)
        !          1633:       for (k = 0; k < sh[j]->max_id; k++) {
        !          1634:          HD(j)->target_redo[k][c] = TRUE;
        !          1635:          HD(j)->target_to[k][c] = 0;
        !          1636:          }
        !          1637: 
        !          1638:    for (i = 0; i < sh[j]->can_queue; i++) {
        !          1639: 
        !          1640:       if (HD(j)->cp_stat[i] == FREE) continue;
        !          1641: 
        !          1642:       if (HD(j)->cp_stat[i] == LOCKED) {
        !          1643:          HD(j)->cp_stat[i] = FREE;
        !          1644:          printk("%s: reset, locked mbox %d forced free.\n", BN(j), i);
        !          1645:          continue;
        !          1646:          }
        !          1647: 
        !          1648:       if (!(SCpnt = HD(j)->cp[i].SCpnt))
        !          1649:          panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i);
        !          1650: 
        !          1651:       if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
        !          1652:          HD(j)->cp_stat[i] = ABORTING;
        !          1653:          printk("%s: reset, mbox %d aborting, pid %ld.\n",
        !          1654:                 BN(j), i, SCpnt->pid);
        !          1655:          }
        !          1656: 
        !          1657:       else {
        !          1658:          HD(j)->cp_stat[i] = IN_RESET;
        !          1659:          printk("%s: reset, mbox %d in reset, pid %ld.\n",
        !          1660:                 BN(j), i, SCpnt->pid);
        !          1661:          }
        !          1662: 
        !          1663:       if (SCpnt->host_scribble == NULL)
        !          1664:          panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i);
        !          1665: 
        !          1666:       if (*(unsigned int *)SCpnt->host_scribble != i)
        !          1667:          panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i);
        !          1668: 
        !          1669:       if (SCpnt->scsi_done == NULL)
        !          1670:          panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i);
        !          1671: 
        !          1672:       if (SCpnt == SCarg) arg_done = TRUE;
        !          1673:       }
        !          1674: 
        !          1675:    if (do_dma(sh[j]->io_port, 0, RESET_PIO)) {
        !          1676:       printk("%s: reset, cannot reset, timeout error.\n", BN(j));
        !          1677:       return SCSI_RESET_ERROR;
        !          1678:       }
        !          1679: 
        !          1680:    printk("%s: reset, board reset done, enabling interrupts.\n", BN(j));
        !          1681: 
        !          1682: #if defined(DEBUG_RESET)
        !          1683:    do_trace = TRUE;
        !          1684: #endif
        !          1685: 
        !          1686:    HD(j)->in_reset = TRUE;
        !          1687:    SPIN_UNLOCK
        !          1688:    IRQ_UNLOCK
        !          1689:    time = jiffies;
        !          1690:    while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L);
        !          1691:    IRQ_LOCK
        !          1692:    SPIN_LOCK
        !          1693:    printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit);
        !          1694: 
        !          1695:    for (i = 0; i < sh[j]->can_queue; i++) {
        !          1696: 
        !          1697:       if (HD(j)->cp_stat[i] == IN_RESET) {
        !          1698:          SCpnt = HD(j)->cp[i].SCpnt;
        !          1699:          SCpnt->result = DID_RESET << 16;
        !          1700:          SCpnt->host_scribble = NULL;
        !          1701: 
        !          1702:          /* This mailbox is still waiting for its interrupt */
        !          1703:          HD(j)->cp_stat[i] = LOCKED;
        !          1704: 
        !          1705:          printk("%s, reset, mbox %d locked, DID_RESET, pid %ld done.\n",
        !          1706:                 BN(j), i, SCpnt->pid);
        !          1707:          }
        !          1708: 
        !          1709:       else if (HD(j)->cp_stat[i] == ABORTING) {
        !          1710:          SCpnt = HD(j)->cp[i].SCpnt;
        !          1711:          SCpnt->result = DID_RESET << 16;
        !          1712:          SCpnt->host_scribble = NULL;
        !          1713: 
        !          1714:          /* This mailbox was never queued to the adapter */
        !          1715:          HD(j)->cp_stat[i] = FREE;
        !          1716: 
        !          1717:          printk("%s, reset, mbox %d aborting, DID_RESET, pid %ld done.\n",
        !          1718:                 BN(j), i, SCpnt->pid);
        !          1719:          }
        !          1720: 
        !          1721:       else
        !          1722: 
        !          1723:          /* Any other mailbox has already been set free by interrupt */
        !          1724:          continue;
        !          1725: 
        !          1726:       SCpnt->scsi_done(SCpnt);
        !          1727:       IRQ_LOCK
        !          1728:       }
        !          1729: 
        !          1730:    HD(j)->in_reset = FALSE;
        !          1731:    do_trace = FALSE;
        !          1732: 
        !          1733:    if (arg_done) {
        !          1734:       printk("%s: reset, exit, success.\n", BN(j));
        !          1735:       return SCSI_RESET_SUCCESS;
        !          1736:       }
        !          1737:    else {
        !          1738:       printk("%s: reset, exit, wakeup.\n", BN(j));
        !          1739:       return SCSI_RESET_PUNT;
        !          1740:       }
        !          1741: }
        !          1742: 
        !          1743: int eata2x_old_reset(Scsi_Cmnd *SCarg, unsigned int reset_flags) {
        !          1744:    int rtn;
        !          1745:    IRQ_FLAGS
        !          1746: 
        !          1747:    IRQ_LOCK_SAVE
        !          1748:    rtn = do_old_reset(SCarg);
        !          1749:    IRQ_UNLOCK_RESTORE
        !          1750:    return rtn;
        !          1751: }
        !          1752: 
        !          1753: #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,101)
        !          1754: 
        !          1755: static inline int do_reset(Scsi_Cmnd *SCarg) {
        !          1756:    unsigned int i, j, time, k, c, limit = 0;
        !          1757:    int arg_done = FALSE;
        !          1758:    Scsi_Cmnd *SCpnt;
        !          1759: 
        !          1760:    j = ((struct hostdata *) SCarg->host->hostdata)->board_number;
        !          1761:    printk("%s: reset, enter, target %d.%d:%d, pid %ld.\n",
        !          1762:           BN(j), SCarg->channel, SCarg->target, SCarg->lun, SCarg->pid);
        !          1763: 
        !          1764:    if (SCarg->host_scribble == NULL)
        !          1765:       printk("%s: reset, pid %ld inactive.\n", BN(j), SCarg->pid);
        !          1766: 
        !          1767:    if (HD(j)->in_reset) {
        !          1768:       printk("%s: reset, exit, already in reset.\n", BN(j));
        !          1769:       return FAILED;
        !          1770:       }
        !          1771: 
        !          1772:    if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
        !          1773:       printk("%s: reset, exit, timeout error.\n", BN(j));
        !          1774:       return FAILED;
        !          1775:       }
        !          1776: 
        !          1777:    HD(j)->retries = 0;
        !          1778: 
        !          1779:    for (c = 0; c <= sh[j]->max_channel; c++)
        !          1780:       for (k = 0; k < sh[j]->max_id; k++) {
        !          1781:          HD(j)->target_redo[k][c] = TRUE;
        !          1782:          HD(j)->target_to[k][c] = 0;
        !          1783:          }
        !          1784: 
        !          1785:    for (i = 0; i < sh[j]->can_queue; i++) {
        !          1786: 
        !          1787:       if (HD(j)->cp_stat[i] == FREE) continue;
        !          1788: 
        !          1789:       if (HD(j)->cp_stat[i] == LOCKED) {
        !          1790:          HD(j)->cp_stat[i] = FREE;
        !          1791:          printk("%s: reset, locked mbox %d forced free.\n", BN(j), i);
        !          1792:          continue;
        !          1793:          }
        !          1794: 
        !          1795:       if (!(SCpnt = HD(j)->cp[i].SCpnt))
        !          1796:          panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i);
        !          1797: 
        !          1798:       if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
        !          1799:          HD(j)->cp_stat[i] = ABORTING;
        !          1800:          printk("%s: reset, mbox %d aborting, pid %ld.\n",
        !          1801:                 BN(j), i, SCpnt->pid);
        !          1802:          }
        !          1803: 
        !          1804:       else {
        !          1805:          HD(j)->cp_stat[i] = IN_RESET;
        !          1806:          printk("%s: reset, mbox %d in reset, pid %ld.\n",
        !          1807:                 BN(j), i, SCpnt->pid);
        !          1808:          }
        !          1809: 
        !          1810:       if (SCpnt->host_scribble == NULL)
        !          1811:          panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i);
        !          1812: 
        !          1813:       if (*(unsigned int *)SCpnt->host_scribble != i)
        !          1814:          panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i);
        !          1815: 
        !          1816:       if (SCpnt->scsi_done == NULL)
        !          1817:          panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i);
        !          1818: 
        !          1819:       if (SCpnt == SCarg) arg_done = TRUE;
        !          1820:       }
        !          1821: 
        !          1822:    if (do_dma(sh[j]->io_port, 0, RESET_PIO)) {
        !          1823:       printk("%s: reset, cannot reset, timeout error.\n", BN(j));
        !          1824:       return FAILED;
        !          1825:       }
        !          1826: 
        !          1827:    printk("%s: reset, board reset done, enabling interrupts.\n", BN(j));
        !          1828: 
        !          1829: #if defined(DEBUG_RESET)
        !          1830:    do_trace = TRUE;
        !          1831: #endif
        !          1832: 
        !          1833:    HD(j)->in_reset = TRUE;
        !          1834:    SPIN_UNLOCK
        !          1835:    IRQ_UNLOCK
        !          1836:    time = jiffies;
        !          1837:    while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L);
        !          1838:    IRQ_LOCK
        !          1839:    SPIN_LOCK
        !          1840:    printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit);
        !          1841: 
        !          1842:    for (i = 0; i < sh[j]->can_queue; i++) {
        !          1843: 
        !          1844:       if (HD(j)->cp_stat[i] == IN_RESET) {
        !          1845:          SCpnt = HD(j)->cp[i].SCpnt;
        !          1846:          SCpnt->result = DID_RESET << 16;
        !          1847:          SCpnt->host_scribble = NULL;
        !          1848: 
        !          1849:          /* This mailbox is still waiting for its interrupt */
        !          1850:          HD(j)->cp_stat[i] = LOCKED;
        !          1851: 
        !          1852:          printk("%s, reset, mbox %d locked, DID_RESET, pid %ld done.\n",
        !          1853:                 BN(j), i, SCpnt->pid);
        !          1854:          }
        !          1855: 
        !          1856:       else if (HD(j)->cp_stat[i] == ABORTING) {
        !          1857:          SCpnt = HD(j)->cp[i].SCpnt;
        !          1858:          SCpnt->result = DID_RESET << 16;
        !          1859:          SCpnt->host_scribble = NULL;
        !          1860: 
        !          1861:          /* This mailbox was never queued to the adapter */
        !          1862:          HD(j)->cp_stat[i] = FREE;
        !          1863: 
        !          1864:          printk("%s, reset, mbox %d aborting, DID_RESET, pid %ld done.\n",
        !          1865:                 BN(j), i, SCpnt->pid);
        !          1866:          }
        !          1867: 
        !          1868:       else
        !          1869: 
        !          1870:          /* Any other mailbox has already been set free by interrupt */
        !          1871:          continue;
        !          1872: 
        !          1873:       SCpnt->scsi_done(SCpnt);
        !          1874:       IRQ_LOCK
        !          1875:       }
        !          1876: 
        !          1877:    HD(j)->in_reset = FALSE;
        !          1878:    do_trace = FALSE;
        !          1879: 
        !          1880:    if (arg_done) printk("%s: reset, exit, pid %ld done.\n", BN(j), SCarg->pid);
        !          1881:    else          printk("%s: reset, exit.\n", BN(j));
        !          1882: 
        !          1883:    return SUCCESS;
        !          1884: }
        !          1885: 
        !          1886: int eata2x_reset(Scsi_Cmnd *SCarg) {
        !          1887: 
        !          1888:    return do_reset(SCarg);
        !          1889: }
        !          1890: 
        !          1891: #endif /* new_eh_code */
        !          1892: 
        !          1893: int eata2x_biosparam(Disk *disk, kdev_t dev, int *dkinfo) {
        !          1894:    int size = disk->capacity;
        !          1895: 
        !          1896:    if (ext_tran || (scsicam_bios_param(disk, dev, dkinfo) < 0)) {
        !          1897:       dkinfo[0] = 255;
        !          1898:       dkinfo[1] = 63;
        !          1899:       dkinfo[2] = size / (dkinfo[0] * dkinfo[1]);
        !          1900:       }
        !          1901: 
        !          1902: #if defined (DEBUG_GEOMETRY)
        !          1903:    printk ("%s: biosparam, head=%d, sec=%d, cyl=%d.\n", driver_name,
        !          1904:            dkinfo[0], dkinfo[1], dkinfo[2]);
        !          1905: #endif
        !          1906: 
        !          1907:    return FALSE;
        !          1908: }
        !          1909: 
        !          1910: static void sort(unsigned long sk[], unsigned int da[], unsigned int n,
        !          1911:                  unsigned int rev) {
        !          1912:    unsigned int i, j, k, y;
        !          1913:    unsigned long x;
        !          1914: 
        !          1915:    for (i = 0; i < n - 1; i++) {
        !          1916:       k = i;
        !          1917: 
        !          1918:       for (j = k + 1; j < n; j++)
        !          1919:          if (rev) {
        !          1920:             if (sk[j] > sk[k]) k = j;
        !          1921:             }
        !          1922:          else {
        !          1923:             if (sk[j] < sk[k]) k = j;
        !          1924:             }
        !          1925: 
        !          1926:       if (k != i) {
        !          1927:          x = sk[k]; sk[k] = sk[i]; sk[i] = x;
        !          1928:          y = da[k]; da[k] = da[i]; da[i] = y;
        !          1929:          }
        !          1930:       }
        !          1931: 
        !          1932:    return;
        !          1933:    }
        !          1934: 
        !          1935: static inline int reorder(unsigned int j, unsigned long cursec,
        !          1936:                  unsigned int ihdlr, unsigned int il[], unsigned int n_ready) {
        !          1937:    Scsi_Cmnd *SCpnt;
        !          1938:    struct mscp *cpp;
        !          1939:    unsigned int k, n;
        !          1940:    unsigned int rev = FALSE, s = TRUE, r = TRUE;
        !          1941:    unsigned int input_only = TRUE, overlap = FALSE;
        !          1942:    unsigned long sl[n_ready], pl[n_ready], ll[n_ready];
        !          1943:    unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0;
        !          1944:    unsigned long ioseek = 0;
        !          1945: 
        !          1946:    static unsigned int flushcount = 0, batchcount = 0, sortcount = 0;
        !          1947:    static unsigned int readycount = 0, ovlcount = 0, inputcount = 0;
        !          1948:    static unsigned int readysorted = 0, revcount = 0;
        !          1949:    static unsigned long seeksorted = 0, seeknosort = 0;
        !          1950: 
        !          1951:    if (link_statistics && !(++flushcount % link_statistics))
        !          1952:       printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\
        !          1953:              " av %ldK as %ldK.\n", flushcount, batchcount, inputcount,
        !          1954:              ovlcount, readycount, readysorted, sortcount, revcount,
        !          1955:              seeknosort / (readycount + 1),
        !          1956:              seeksorted / (readycount + 1));
        !          1957: 
        !          1958:    if (n_ready <= 1) return FALSE;
        !          1959: 
        !          1960:    for (n = 0; n < n_ready; n++) {
        !          1961:       k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
        !          1962: 
        !          1963:       if (!cpp->din) input_only = FALSE;
        !          1964: 
        !          1965:       if (SCpnt->request.sector < minsec) minsec = SCpnt->request.sector;
        !          1966:       if (SCpnt->request.sector > maxsec) maxsec = SCpnt->request.sector;
        !          1967: 
        !          1968:       sl[n] = SCpnt->request.sector;
        !          1969:       ioseek += SCpnt->request.nr_sectors;
        !          1970: 
        !          1971:       if (!n) continue;
        !          1972: 
        !          1973:       if (sl[n] < sl[n - 1]) s = FALSE;
        !          1974:       if (sl[n] > sl[n - 1]) r = FALSE;
        !          1975: 
        !          1976:       if (link_statistics) {
        !          1977:          if (sl[n] > sl[n - 1])
        !          1978:             seek += sl[n] - sl[n - 1];
        !          1979:          else
        !          1980:             seek += sl[n - 1] - sl[n];
        !          1981:          }
        !          1982: 
        !          1983:       }
        !          1984: 
        !          1985:    if (link_statistics) {
        !          1986:       if (cursec > sl[0]) seek += cursec - sl[0]; else seek += sl[0] - cursec;
        !          1987:       }
        !          1988: 
        !          1989:    if (cursec > ((maxsec + minsec) / 2)) rev = TRUE;
        !          1990: 
        !          1991:    if (ioseek > ((maxsec - minsec) / 2)) rev = FALSE;
        !          1992: 
        !          1993:    if (!((rev && r) || (!rev && s))) sort(sl, il, n_ready, rev);
        !          1994: 
        !          1995:    if (!input_only) for (n = 0; n < n_ready; n++) {
        !          1996:       k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
        !          1997:       ll[n] = SCpnt->request.nr_sectors; pl[n] = SCpnt->pid;
        !          1998: 
        !          1999:       if (!n) continue;
        !          2000: 
        !          2001:       if ((sl[n] == sl[n - 1]) || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n]))
        !          2002:           || (rev && ((sl[n] + ll[n]) > sl[n - 1]))) overlap = TRUE;
        !          2003:       }
        !          2004: 
        !          2005:    if (overlap) sort(pl, il, n_ready, FALSE);
        !          2006: 
        !          2007:    if (link_statistics) {
        !          2008:       if (cursec > sl[0]) iseek = cursec - sl[0]; else iseek = sl[0] - cursec;
        !          2009:       batchcount++; readycount += n_ready, seeknosort += seek / 1024;
        !          2010:       if (input_only) inputcount++;
        !          2011:       if (overlap) { ovlcount++; seeksorted += iseek / 1024; }
        !          2012:       else seeksorted += (iseek + maxsec - minsec) / 1024;
        !          2013:       if (rev && !r)     {  revcount++; readysorted += n_ready; }
        !          2014:       if (!rev && !s)    { sortcount++; readysorted += n_ready; }
        !          2015:       }
        !          2016: 
        !          2017: #if defined(DEBUG_LINKED_COMMANDS)
        !          2018:    if (link_statistics && (overlap || !(flushcount % link_statistics)))
        !          2019:       for (n = 0; n < n_ready; n++) {
        !          2020:          k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
        !          2021:          printk("%s %d.%d:%d pid %ld mb %d fc %d nr %d sec %ld ns %ld"\
        !          2022:                 " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
        !          2023:                 (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target,
        !          2024:                 SCpnt->lun, SCpnt->pid, k, flushcount, n_ready,
        !          2025:                 SCpnt->request.sector, SCpnt->request.nr_sectors, cursec,
        !          2026:                 YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only),
        !          2027:                 YESNO(overlap), cpp->din);
        !          2028:          }
        !          2029: #endif
        !          2030:    return overlap;
        !          2031: }
        !          2032: 
        !          2033: static void flush_dev(Scsi_Device *dev, unsigned long cursec, unsigned int j,
        !          2034:                       unsigned int ihdlr) {
        !          2035:    Scsi_Cmnd *SCpnt;
        !          2036:    struct mscp *cpp;
        !          2037:    unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES];
        !          2038: 
        !          2039:    for (k = 0; k < sh[j]->can_queue; k++) {
        !          2040: 
        !          2041:       if (HD(j)->cp_stat[k] != READY && HD(j)->cp_stat[k] != IN_USE) continue;
        !          2042: 
        !          2043:       cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
        !          2044: 
        !          2045:       if (SCpnt->device != dev) continue;
        !          2046: 
        !          2047:       if (HD(j)->cp_stat[k] == IN_USE) return;
        !          2048: 
        !          2049:       il[n_ready++] = k;
        !          2050:       }
        !          2051: 
        !          2052:    if (reorder(j, cursec, ihdlr, il, n_ready)) n_ready = 1;
        !          2053: 
        !          2054:    for (n = 0; n < n_ready; n++) {
        !          2055:       k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
        !          2056: 
        !          2057:       if (do_dma(sh[j]->io_port, (unsigned int) cpp, SEND_CP_DMA)) {
        !          2058:          printk("%s: %s, target %d.%d:%d, pid %ld, mbox %d, adapter"\
        !          2059:                 " busy, will abort.\n", BN(j), (ihdlr ? "ihdlr" : "qcomm"),
        !          2060:                 SCpnt->channel, SCpnt->target, SCpnt->lun, SCpnt->pid, k);
        !          2061:          HD(j)->cp_stat[k] = ABORTING;
        !          2062:          continue;
        !          2063:          }
        !          2064: 
        !          2065:       HD(j)->cp_stat[k] = IN_USE;
        !          2066:       }
        !          2067: 
        !          2068: }
        !          2069: 
        !          2070: static inline void ihdlr(int irq, unsigned int j) {
        !          2071:    Scsi_Cmnd *SCpnt;
        !          2072:    unsigned int i, k, c, status, tstatus, reg;
        !          2073:    struct mssp *dspp, *spp;
        !          2074:    struct mscp *cpp;
        !          2075: 
        !          2076:    if (sh[j]->irq != irq)
        !          2077:        panic("%s: ihdlr, irq %d, sh[j]->irq %d.\n", BN(j), irq, sh[j]->irq);
        !          2078: 
        !          2079:    /* Check if this board need to be serviced */
        !          2080:    if (!(inb(sh[j]->io_port + REG_AUX_STATUS) & IRQ_ASSERTED)) return;
        !          2081: 
        !          2082:    HD(j)->iocount++;
        !          2083: 
        !          2084:    if (do_trace) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j), irq,
        !          2085:                         HD(j)->iocount);
        !          2086: 
        !          2087:    /* Check if this board is still busy */
        !          2088:    if (wait_on_busy(sh[j]->io_port, 20 * MAXLOOP)) {
        !          2089:       reg = inb(sh[j]->io_port + REG_STATUS);
        !          2090:       printk("%s: ihdlr, busy timeout error,  irq %d, reg 0x%x, count %d.\n",
        !          2091:              BN(j), irq, reg, HD(j)->iocount);
        !          2092:       return;
        !          2093:       }
        !          2094: 
        !          2095:    dspp = &HD(j)->sp[0];
        !          2096:    spp  = &HD(j)->sp[1];
        !          2097: 
        !          2098:    /* Make a local copy just before clearing the interrupt indication */
        !          2099:    memcpy(spp, dspp, sizeof(struct mssp));
        !          2100: 
        !          2101:    /* Clear the completion flag and cp pointer on the dynamic copy of sp */
        !          2102:    memset(dspp, 0, sizeof(struct mssp));
        !          2103: 
        !          2104:    /* Read the status register to clear the interrupt indication */
        !          2105:    reg = inb(sh[j]->io_port + REG_STATUS);
        !          2106: 
        !          2107:    /* Reject any sp with supspect data */
        !          2108:    if (spp->eoc == FALSE)
        !          2109:       printk("%s: ihdlr, spp->eoc == FALSE, irq %d, reg 0x%x, count %d.\n",
        !          2110:              BN(j), irq, reg, HD(j)->iocount);
        !          2111:    if (spp->cpp == NULL)
        !          2112:       printk("%s: ihdlr, spp->cpp == NULL,  irq %d, reg 0x%x, count %d.\n",
        !          2113:              BN(j), irq, reg, HD(j)->iocount);
        !          2114:    if (spp->eoc == FALSE || spp->cpp == NULL) return;
        !          2115: 
        !          2116:    cpp = spp->cpp;
        !          2117: 
        !          2118: #if defined(DEBUG_GENERATE_ABORTS)
        !          2119:    if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 500) < 3)) return;
        !          2120: #endif
        !          2121: 
        !          2122:    /* Find the mailbox to be serviced on this board */
        !          2123:    i = cpp - HD(j)->cp;
        !          2124: 
        !          2125:    if (cpp < HD(j)->cp || cpp >= HD(j)->cp + sh[j]->can_queue
        !          2126:                                      || i >= sh[j]->can_queue)
        !          2127:       panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j),
        !          2128:             cpp, HD(j)->cp);
        !          2129: 
        !          2130:    if (HD(j)->cp_stat[i] == IGNORE) {
        !          2131:       HD(j)->cp_stat[i] = FREE;
        !          2132:       return;
        !          2133:       }
        !          2134:    else if (HD(j)->cp_stat[i] == LOCKED) {
        !          2135:       HD(j)->cp_stat[i] = FREE;
        !          2136:       printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i,
        !          2137:              HD(j)->iocount);
        !          2138:       return;
        !          2139:       }
        !          2140:    else if (HD(j)->cp_stat[i] == FREE) {
        !          2141:       printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j), i,
        !          2142:              HD(j)->iocount);
        !          2143:       return;
        !          2144:       }
        !          2145:    else if (HD(j)->cp_stat[i] == IN_RESET)
        !          2146:       printk("%s: ihdlr, mbox %d is in reset.\n", BN(j), i);
        !          2147:    else if (HD(j)->cp_stat[i] != IN_USE)
        !          2148:       panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n",
        !          2149:             BN(j), i, HD(j)->cp_stat[i]);
        !          2150: 
        !          2151:    HD(j)->cp_stat[i] = FREE;
        !          2152:    SCpnt = cpp->SCpnt;
        !          2153: 
        !          2154:    if (SCpnt == NULL) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j), i);
        !          2155: 
        !          2156:    if (SCpnt->host_scribble == NULL)
        !          2157:       panic("%s: ihdlr, mbox %d, pid %ld, SCpnt %p garbled.\n", BN(j), i,
        !          2158:             SCpnt->pid, SCpnt);
        !          2159: 
        !          2160:    if (*(unsigned int *)SCpnt->host_scribble != i)
        !          2161:       panic("%s: ihdlr, mbox %d, pid %ld, index mismatch %d.\n",
        !          2162:             BN(j), i, SCpnt->pid, *(unsigned int *)SCpnt->host_scribble);
        !          2163: 
        !          2164:    if (linked_comm && SCpnt->device->queue_depth > 2
        !          2165:                                      && TLDEV(SCpnt->device->type))
        !          2166:       flush_dev(SCpnt->device, SCpnt->request.sector, j, TRUE);
        !          2167: 
        !          2168:    tstatus = status_byte(spp->target_status);
        !          2169: 
        !          2170: #if defined(DEBUG_GENERATE_ERRORS)
        !          2171:    if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 200) < 2))
        !          2172:                                            spp->adapter_status = 0x01;
        !          2173: #endif
        !          2174: 
        !          2175:    switch (spp->adapter_status) {
        !          2176:       case ASOK:     /* status OK */
        !          2177: 
        !          2178:          /* Forces a reset if a disk drive keeps returning BUSY */
        !          2179:          if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE)
        !          2180:             status = DID_ERROR << 16;
        !          2181: 
        !          2182:          /* If there was a bus reset, redo operation on each target */
        !          2183:          else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK
        !          2184:                   && HD(j)->target_redo[SCpnt->target][SCpnt->channel])
        !          2185:             status = DID_BUS_BUSY << 16;
        !          2186: 
        !          2187:          /* Works around a flaw in scsi.c */
        !          2188:          else if (tstatus == CHECK_CONDITION
        !          2189:                   && SCpnt->device->type == TYPE_DISK
        !          2190:                   && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR)
        !          2191:             status = DID_BUS_BUSY << 16;
        !          2192: 
        !          2193:          else
        !          2194:             status = DID_OK << 16;
        !          2195: 
        !          2196:          if (tstatus == GOOD)
        !          2197:             HD(j)->target_redo[SCpnt->target][SCpnt->channel] = FALSE;
        !          2198: 
        !          2199:          if (spp->target_status && SCpnt->device->type == TYPE_DISK)
        !          2200:             printk("%s: ihdlr, target %d.%d:%d, pid %ld, "\
        !          2201:                    "target_status 0x%x, sense key 0x%x.\n", BN(j),
        !          2202:                    SCpnt->channel, SCpnt->target, SCpnt->lun,
        !          2203:                    SCpnt->pid, spp->target_status,
        !          2204:                    SCpnt->sense_buffer[2]);
        !          2205: 
        !          2206:          HD(j)->target_to[SCpnt->target][SCpnt->channel] = 0;
        !          2207: 
        !          2208:          if (HD(j)->last_retried_pid == SCpnt->pid) HD(j)->retries = 0;
        !          2209: 
        !          2210:          break;
        !          2211:       case ASST:     /* Selection Time Out */
        !          2212:       case 0x02:     /* Command Time Out   */
        !          2213: 
        !          2214:          if (HD(j)->target_to[SCpnt->target][SCpnt->channel] > 1)
        !          2215:             status = DID_ERROR << 16;
        !          2216:          else {
        !          2217:             status = DID_TIME_OUT << 16;
        !          2218:             HD(j)->target_to[SCpnt->target][SCpnt->channel]++;
        !          2219:             }
        !          2220: 
        !          2221:          break;
        !          2222: 
        !          2223:       /* Perform a limited number of internal retries */
        !          2224:       case 0x03:     /* SCSI Bus Reset Received */
        !          2225:       case 0x04:     /* Initial Controller Power-up */
        !          2226: 
        !          2227:          for (c = 0; c <= sh[j]->max_channel; c++)
        !          2228:             for (k = 0; k < sh[j]->max_id; k++)
        !          2229:                HD(j)->target_redo[k][c] = TRUE;
        !          2230: 
        !          2231:          if (SCpnt->device->type != TYPE_TAPE
        !          2232:              && HD(j)->retries < MAX_INTERNAL_RETRIES) {
        !          2233: 
        !          2234: #if defined(DID_SOFT_ERROR)
        !          2235:             status = DID_SOFT_ERROR << 16;
        !          2236: #else
        !          2237:             status = DID_BUS_BUSY << 16;
        !          2238: #endif
        !          2239:             HD(j)->retries++;
        !          2240:             HD(j)->last_retried_pid = SCpnt->pid;
        !          2241:             }
        !          2242:          else
        !          2243:             status = DID_ERROR << 16;
        !          2244: 
        !          2245:          break;
        !          2246:       case 0x05:     /* Unexpected Bus Phase */
        !          2247:       case 0x06:     /* Unexpected Bus Free */
        !          2248:       case 0x07:     /* Bus Parity Error */
        !          2249:       case 0x08:     /* SCSI Hung */
        !          2250:       case 0x09:     /* Unexpected Message Reject */
        !          2251:       case 0x0a:     /* SCSI Bus Reset Stuck */
        !          2252:       case 0x0b:     /* Auto Request-Sense Failed */
        !          2253:       case 0x0c:     /* Controller Ram Parity Error */
        !          2254:       default:
        !          2255:          status = DID_ERROR << 16;
        !          2256:          break;
        !          2257:       }
        !          2258: 
        !          2259:    SCpnt->result = status | spp->target_status;
        !          2260: 
        !          2261: #if defined(DEBUG_INTERRUPT)
        !          2262:    if (SCpnt->result || do_trace)
        !          2263: #else
        !          2264:    if ((spp->adapter_status != ASOK && HD(j)->iocount >  1000) ||
        !          2265:        (spp->adapter_status != ASOK &&
        !          2266:         spp->adapter_status != ASST && HD(j)->iocount <= 1000) ||
        !          2267:         do_trace || msg_byte(spp->target_status))
        !          2268: #endif
        !          2269:       printk("%s: ihdlr, mbox %2d, err 0x%x:%x,"\
        !          2270:              " target %d.%d:%d, pid %ld, reg 0x%x, count %d.\n",
        !          2271:              BN(j), i, spp->adapter_status, spp->target_status,
        !          2272:              SCpnt->channel, SCpnt->target, SCpnt->lun, SCpnt->pid,
        !          2273:              reg, HD(j)->iocount);
        !          2274: 
        !          2275:    /* Set the command state to inactive */
        !          2276:    SCpnt->host_scribble = NULL;
        !          2277: 
        !          2278:    SCpnt->scsi_done(SCpnt);
        !          2279: 
        !          2280:    if (do_trace) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j), irq,
        !          2281:                         HD(j)->iocount);
        !          2282: 
        !          2283:    return;
        !          2284: }
        !          2285: 
        !          2286: static void do_interrupt_handler(int irq, void *shap, struct pt_regs *regs) {
        !          2287:    unsigned int j;
        !          2288:    IRQ_FLAGS
        !          2289:    SPIN_FLAGS
        !          2290: 
        !          2291:    /* Check if the interrupt must be processed by this handler */
        !          2292:    if ((j = (unsigned int)((char *)shap - sha)) >= num_boards) return;
        !          2293: 
        !          2294:    SPIN_LOCK_SAVE
        !          2295:    IRQ_LOCK_SAVE
        !          2296:    ihdlr(irq, j);
        !          2297:    IRQ_UNLOCK_RESTORE
        !          2298:    SPIN_UNLOCK_RESTORE
        !          2299: }
        !          2300: 
        !          2301: int eata2x_release(struct Scsi_Host *shpnt) {
        !          2302:    unsigned int i, j;
        !          2303:    IRQ_FLAGS
        !          2304: 
        !          2305:    IRQ_LOCK_SAVE
        !          2306: 
        !          2307:    for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++);
        !          2308: 
        !          2309:    if (sh[j] == NULL) panic("%s: release, invalid Scsi_Host pointer.\n",
        !          2310:                             driver_name);
        !          2311: 
        !          2312:    for (i = 0; i < sh[j]->can_queue; i++)
        !          2313:       if ((&HD(j)->cp[i])->sglist) kfree((&HD(j)->cp[i])->sglist);
        !          2314: 
        !          2315:    free_irq(sh[j]->irq, &sha[j]);
        !          2316: 
        !          2317:    if (sh[j]->dma_channel != NO_DMA) free_dma(sh[j]->dma_channel);
        !          2318: 
        !          2319:    release_region(sh[j]->io_port, sh[j]->n_io_port);
        !          2320:    scsi_unregister(sh[j]);
        !          2321:    IRQ_UNLOCK_RESTORE
        !          2322:    return FALSE;
        !          2323: }
        !          2324: 
        !          2325: #if defined(MODULE)
        !          2326: Scsi_Host_Template driver_template = EATA;
        !          2327: 
        !          2328: #include "scsi_module.c"
        !          2329: #endif

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