diff options
Diffstat (limited to 'drivers/scsi/u14-34f.c')
| -rw-r--r-- | drivers/scsi/u14-34f.c | 1971 |
1 files changed, 0 insertions, 1971 deletions
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c deleted file mode 100644 index 14eb50b95a1e..000000000000 --- a/drivers/scsi/u14-34f.c +++ /dev/null @@ -1,1971 +0,0 @@ -/* - * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters. - * - * 03 Jun 2003 Rev. 8.10 for linux-2.5.70 - * + Update for new IRQ API. - * + Use "goto" when appropriate. - * + Drop u14-34f.h. - * + Update for new module_param API. - * + Module parameters can now be specified only in the - * same format as the kernel boot options. - * - * boot option old module param - * ----------- ------------------ - * addr,... io_port=addr,... - * lc:[y|n] linked_comm=[1|0] - * mq:xx max_queue_depth=xx - * tm:[0|1|2] tag_mode=[0|1|2] - * et:[y|n] ext_tran=[1|0] - * of:[y|n] have_old_firmware=[1|0] - * - * A valid example using the new parameter format is: - * modprobe u14-34f "u14-34f=0x340,0x330,lc:y,tm:0,mq:4" - * - * which is equivalent to the old format: - * modprobe u14-34f io_port=0x340,0x330 linked_comm=1 tag_mode=0 \ - * max_queue_depth=4 - * - * With actual module code, u14-34f and u14_34f are equivalent - * as module parameter names. - * - * 12 Feb 2003 Rev. 8.04 for linux 2.5.60 - * + Release irq before calling scsi_register. - * - * 12 Nov 2002 Rev. 8.02 for linux 2.5.47 - * + Release driver_lock before calling scsi_register. - * - * 11 Nov 2002 Rev. 8.01 for linux 2.5.47 - * + Fixed bios_param and scsicam_bios_param calling parameters. - * - * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4 - * + Use new tcq and adjust_queue_depth api. - * + New command line option (tm:[0-2]) to choose the type of tags: - * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags. - * Default is tm:0 (tagged commands disabled). - * For compatibility the "tc:" option is an alias of the "tm:" - * option; tc:n is equivalent to tm:0 and tc:y is equivalent to - * tm:1. - * - * 10 Oct 2002 Rev. 7.70 for linux 2.5.42 - * + Foreport from revision 6.70. - * - * 25 Jun 2002 Rev. 6.70 for linux 2.4.19 - * + Fixed endian-ness problem due to bitfields. - * - * 21 Feb 2002 Rev. 6.52 for linux 2.4.18 - * + Backport from rev. 7.22 (use io_request_lock). - * - * 20 Feb 2002 Rev. 7.22 for linux 2.5.5 - * + Remove any reference to virt_to_bus(). - * + Fix pio hang while detecting multiple HBAs. - * - * 01 Jan 2002 Rev. 7.20 for linux 2.5.1 - * + Use the dynamic DMA mapping API. - * - * 19 Dec 2001 Rev. 7.02 for linux 2.5.1 - * + Use SCpnt->sc_data_direction if set. - * + Use sglist.page instead of sglist.address. - * - * 11 Dec 2001 Rev. 7.00 for linux 2.5.1 - * + Use host->host_lock instead of io_request_lock. - * - * 1 May 2001 Rev. 6.05 for linux 2.4.4 - * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d) - * - * 25 Jan 2001 Rev. 6.03 for linux 2.4.0 - * + "check_region" call replaced by "request_region". - * - * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11 - * + Removed old scsi error handling support. - * + The obsolete boot option flag eh:n is silently ignored. - * + Removed error messages while a disk drive is powered up at - * boot time. - * + Improved boot messages: all tagged capable device are - * indicated as "tagged". - * - * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18 - * + Updated to the new __setup interface for boot command line options. - * + When loaded as a module, accepts the new parameter boot_options - * which value is a string with the same format of the kernel boot - * command line options. A valid example is: - * modprobe u14-34f 'boot_options="0x230,0x340,lc:y,mq:4"' - * - * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11 - * + Removed pre-2.2 source code compatibility. - * - * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111 - * Added command line option (et:[y|n]) to use the existing - * translation (returned by scsicam_bios_param) as disk geometry. - * The default is et:n, which uses the disk geometry jumpered - * on the board. - * The default value et:n is compatible with all previous revisions - * of this driver. - * - * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104 - * Increased busy timeout from 10 msec. to 200 msec. while - * processing interrupts. - * - * 18 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102 - * Improved abort handling during the eh recovery process. - * - * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101 - * The driver is now fully SMP safe, including the - * abort and reset routines. - * Added command line options (eh:[y|n]) to choose between - * new_eh_code and the old scsi code. - * If linux version >= 2.1.101 the default is eh:y, while the eh - * option is ignored for previous releases and the old scsi code - * is used. - * - * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97 - * Reworked interrupt handler. - * - * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95 - * Major reliability improvement: when a batch with overlapping - * requests is detected, requests are queued one at a time - * eliminating any possible board or drive reordering. - * - * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95 - * Improved SMP support (if linux version >= 2.1.95). - * - * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94 - * Performance improvement: when sequential i/o is detected, - * always use direct sort instead of reverse sort. - * - * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92 - * io_port is now unsigned long. - * - * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88 - * Use new scsi error handling code (if linux version >= 2.1.88). - * Use new interrupt code. - * - * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55 - * Use of udelay inside the wait loops to avoid timeout - * problems with fast cpus. - * Removed check about useless calls to the interrupt service - * routine (reported on SMP systems only). - * At initialization time "sorted/unsorted" is displayed instead - * of "linked/unlinked" to reinforce the fact that "linking" is - * nothing but "elevator sorting" in the actual implementation. - * - * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38 - * Use of serial_number_at_timeout in abort and reset processing. - * Use of the __initfunc and __initdata macro in setup code. - * Minor cleanups in the list_statistics code. - * - * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26 - * When loading as a module, parameter passing is now supported - * both in 2.0 and in 2.1 style. - * Fixed data transfer direction for some SCSI opcodes. - * Immediate acknowledge to request sense commands. - * Linked commands to each disk device are now reordered by elevator - * sorting. Rare cases in which reordering of write requests could - * cause wrong results are managed. - * - * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28 - * Added command line options to enable/disable linked commands - * (lc:[y|n]), old firmware support (of:[y|n]) and to set the max - * queue depth (mq:xx). Default is "u14-34f=lc:n,of:n,mq:8". - * Improved command linking. - * - * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27 - * Added linked command support. - * - * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27 - * Added queue depth adjustment. - * - * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26 - * The list of i/o ports to be probed can be overwritten by the - * "u14-34f=port0,port1,...." boot command line option. - * Scatter/gather lists are now allocated by a number of kmalloc - * calls, in order to avoid the previous size limit of 64Kb. - * - * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25 - * Added multichannel support. - * - * 27 Sep 1996 rev. 2.12 for linux 2.1.0 - * Portability cleanups (virtual/bus addressing, little/big endian - * support). - * - * 09 Jul 1996 rev. 2.11 for linux 2.0.4 - * "Data over/under-run" no longer implies a redo on all targets. - * Number of internal retries is now limited. - * - * 16 Apr 1996 rev. 2.10 for linux 1.3.90 - * New argument "reset_flags" to the reset routine. - * - * 21 Jul 1995 rev. 2.02 for linux 1.3.11 - * Fixed Data Transfer Direction for some SCSI commands. - * - * 13 Jun 1995 rev. 2.01 for linux 1.2.10 - * HAVE_OLD_UX4F_FIRMWARE should be defined for U34F boards when - * the firmware prom is not the latest one (28008-006). - * - * 11 Mar 1995 rev. 2.00 for linux 1.2.0 - * Fixed a bug which prevented media change detection for removable - * disk drives. - * - * 23 Feb 1995 rev. 1.18 for linux 1.1.94 - * Added a check for scsi_register returning NULL. - * - * 11 Feb 1995 rev. 1.17 for linux 1.1.91 - * U14F qualified to run with 32 sglists. - * Now DEBUG_RESET is disabled by default. - * - * 9 Feb 1995 rev. 1.16 for linux 1.1.90 - * Use host->wish_block instead of host->block. - * - * 8 Feb 1995 rev. 1.15 for linux 1.1.89 - * Cleared target_time_out counter while performing a reset. - * - * 28 Jan 1995 rev. 1.14 for linux 1.1.86 - * Added module support. - * Log and do a retry when a disk drive returns a target status - * different from zero on a recovered error. - * Auto detects if U14F boards have an old firmware revision. - * Max number of scatter/gather lists set to 16 for all boards - * (most installation run fine using 33 sglists, while other - * has problems when using more than 16). - * - * 16 Jan 1995 rev. 1.13 for linux 1.1.81 - * Display a message if check_region detects a port address - * already in use. - * - * 15 Dec 1994 rev. 1.12 for linux 1.1.74 - * The host->block flag is set for all the detected ISA boards. - * - * 30 Nov 1994 rev. 1.11 for linux 1.1.68 - * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only. - * Added optional support for using a single board at a time. - * - * 14 Nov 1994 rev. 1.10 for linux 1.1.63 - * - * 28 Oct 1994 rev. 1.09 for linux 1.1.58 Final BETA release. - * 16 Jul 1994 rev. 1.00 for linux 1.1.29 Initial ALPHA release. - * - * This driver is a total replacement of the original UltraStor - * scsi driver, but it supports ONLY the 14F and 34F boards. - * It can be configured in the same kernel in which the original - * ultrastor driver is configured to allow the original U24F - * support. - * - * Multiple U14F and/or U34F host adapters are supported. - * - * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com) - * - * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that redistributions of source - * code retain the above copyright notice and this comment without - * modification. - * - * WARNING: if your 14/34F board has an old firmware revision (see below) - * you must change "#undef" into "#define" in the following - * statement. - */ -#undef HAVE_OLD_UX4F_FIRMWARE -/* - * The UltraStor 14F, 24F, and 34F are a family of intelligent, high - * performance SCSI-2 host adapters. - * Here is the scoop on the various models: - * - * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation. - * 24F - EISA Bus Master HA with floppy support and WD1003 emulation. - * 34F - VESA Local-Bus Bus Master HA (no WD1003 emulation). - * - * This code has been tested with up to two U14F boards, using both - * firmware 28004-005/38004-004 (BIOS rev. 2.00) and the latest firmware - * 28004-006/38004-005 (BIOS rev. 2.01). - * - * The latest firmware is required in order to get reliable operations when - * clustering is enabled. ENABLE_CLUSTERING provides a performance increase - * up to 50% on sequential access. - * - * Since the struct scsi_host_template structure is shared among all 14F and 34F, - * the last setting of use_clustering is in effect for all of these boards. - * - * Here a sample configuration using two U14F boards: - * - U14F0: ISA 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 32, MB 16, of:n, lc:y, mq:8. - U14F1: ISA 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 32, MB 16, of:n, lc:y, mq:8. - * - * The boot controller must have its BIOS enabled, while other boards can - * have their BIOS disabled, or enabled to an higher address. - * Boards are named Ux4F0, Ux4F1..., according to the port address order in - * the io_port[] array. - * - * The following facts are based on real testing results (not on - * documentation) on the above U14F board. - * - * - The U14F board should be jumpered for bus on time less or equal to 7 - * microseconds, while the default is 11 microseconds. This is order to - * get acceptable performance while using floppy drive and hard disk - * together. The jumpering for 7 microseconds is: JP13 pin 15-16, - * JP14 pin 7-8 and pin 9-10. - * The reduction has a little impact on scsi performance. - * - * - If scsi bus length exceeds 3m., the scsi bus speed needs to be reduced - * from 10Mhz to 5Mhz (do this by inserting a jumper on JP13 pin 7-8). - * - * - If U14F on board firmware is older than 28004-006/38004-005, - * the U14F board is unable to provide reliable operations if the scsi - * request length exceeds 16Kbyte. When this length is exceeded the - * behavior is: - * - adapter_status equal 0x96 or 0xa3 or 0x93 or 0x94; - * - adapter_status equal 0 and target_status equal 2 on for all targets - * in the next operation following the reset. - * This sequence takes a long time (>3 seconds), so in the meantime - * the SD_TIMEOUT in sd.c could expire giving rise to scsi aborts - * (SD_TIMEOUT has been increased from 3 to 6 seconds in 1.1.31). - * Because of this I had to DISABLE_CLUSTERING and to work around the - * bus reset in the interrupt service routine, returning DID_BUS_BUSY - * so that the operations are retried without complains from the scsi.c - * code. - * Any reset of the scsi bus is going to kill tape operations, since - * no retry is allowed for tapes. Bus resets are more likely when the - * scsi bus is under heavy load. - * Requests using scatter/gather have a maximum length of 16 x 1024 bytes - * when DISABLE_CLUSTERING is in effect, but unscattered requests could be - * larger than 16Kbyte. - * - * The new firmware has fixed all the above problems. - * - * For U34F boards the latest bios prom is 38008-002 (BIOS rev. 2.01), - * the latest firmware prom is 28008-006. Older firmware 28008-005 has - * problems when using more than 16 scatter/gather lists. - * - * The list of i/o ports to be probed can be totally replaced by the - * boot command line option: "u14-34f=port0,port1,port2,...", where the - * port0, port1... arguments are ISA/VESA addresses to be probed. - * For example using "u14-34f=0x230,0x340", the driver probes only the two - * addresses 0x230 and 0x340 in this order; "u14-34f=0" totally disables - * this driver. - * - * After the optional list of detection probes, other possible command line - * options are: - * - * et:y use disk geometry returned by scsicam_bios_param; - * et:n use disk geometry jumpered on the board; - * lc:y enables linked commands; - * lc:n disables linked commands; - * tm:0 disables tagged commands (same as tc:n); - * tm:1 use simple queue tags (same as tc:y); - * tm:2 use ordered queue tags (same as tc:2); - * of:y enables old firmware support; - * of:n disables old firmware support; - * mq:xx set the max queue depth to the value xx (2 <= xx <= 8). - * - * The default value is: "u14-34f=lc:n,of:n,mq:8,tm:0,et:n". - * An example using the list of detection probes could be: - * "u14-34f=0x230,0x340,lc:y,tm:2,of:n,mq:4,et:n". - * - * When loading as a module, parameters can be specified as well. - * The above example would be (use 1 in place of y and 0 in place of n): - * - * modprobe u14-34f io_port=0x230,0x340 linked_comm=1 have_old_firmware=0 \ - * max_queue_depth=4 ext_tran=0 tag_mode=2 - * - * ---------------------------------------------------------------------------- - * In this implementation, linked commands are designed to work with any DISK - * or CD-ROM, since this linking has only the intent of clustering (time-wise) - * and reordering by elevator sorting commands directed to each device, - * without any relation with the actual SCSI protocol between the controller - * and the device. - * If Q is the queue depth reported at boot time for each device (also named - * cmds/lun) and Q > 2, whenever there is already an active command to the - * device all other commands to the same device (up to Q-1) are kept waiting - * in the elevator sorting queue. When the active command completes, the - * commands in this queue are sorted by sector address. The sort is chosen - * between increasing or decreasing by minimizing the seek distance between - * the sector of the commands just completed and the sector of the first - * command in the list to be sorted. - * Trivial math assures that the unsorted average seek distance when doing - * random seeks over S sectors is S/3. - * When (Q-1) requests are uniformly distributed over S sectors, the average - * distance between two adjacent requests is S/((Q-1) + 1), so the sorted - * average seek distance for (Q-1) random requests over S sectors is S/Q. - * The elevator sorting hence divides the seek distance by a factor Q/3. - * The above pure geometric remarks are valid in all cases and the - * driver effectively reduces the seek distance by the predicted factor - * when there are Q concurrent read i/o operations on the device, but this - * does not necessarily results in a noticeable performance improvement: - * your mileage may vary.... - * - * Note: command reordering inside a batch of queued commands could cause - * wrong results only if there is at least one write request and the - * intersection (sector-wise) of all requests is not empty. - * When the driver detects a batch including overlapping requests - * (a really rare event) strict serial (pid) order is enforced. - * ---------------------------------------------------------------------------- - * - * The boards are named Ux4F0, Ux4F1,... according to the detection order. - * - * In order to support multiple ISA boards in a reliable way, - * the driver sets host->wish_block = TRUE for all ISA boards. - */ - -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <asm/io.h> -#include <asm/byteorder.h> -#include <linux/proc_fs.h> -#include <linux/blkdev.h> -#include <linux/interrupt.h> -#include <linux/stat.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ctype.h> -#include <linux/spinlock.h> -#include <linux/slab.h> -#include <asm/dma.h> -#include <asm/irq.h> - -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> -#include <scsi/scsi_device.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_tcq.h> -#include <scsi/scsicam.h> - -static int u14_34f_detect(struct scsi_host_template *); -static int u14_34f_release(struct Scsi_Host *); -static int u14_34f_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); -static int u14_34f_eh_abort(struct scsi_cmnd *); -static int u14_34f_eh_host_reset(struct scsi_cmnd *); -static int u14_34f_bios_param(struct scsi_device *, struct block_device *, - sector_t, int *); -static int u14_34f_slave_configure(struct scsi_device *); - -static struct scsi_host_template driver_template = { - .name = "UltraStor 14F/34F rev. 8.10.00 ", - .detect = u14_34f_detect, - .release = u14_34f_release, - .queuecommand = u14_34f_queuecommand, - .eh_abort_handler = u14_34f_eh_abort, - .eh_host_reset_handler = u14_34f_eh_host_reset, - .bios_param = u14_34f_bios_param, - .slave_configure = u14_34f_slave_configure, - .this_id = 7, - .unchecked_isa_dma = 1, - .use_clustering = ENABLE_CLUSTERING, - }; - -#if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD) -#error "Adjust your <asm/byteorder.h> defines" -#endif - -/* Values for the PRODUCT_ID ports for the 14/34F */ -#define PRODUCT_ID1 0x56 -#define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */ - -/* Subversion values */ -#define ISA 0 -#define ESA 1 - -#define OP_HOST_ADAPTER 0x1 -#define OP_SCSI 0x2 -#define OP_RESET 0x4 -#define DTD_SCSI 0x0 -#define DTD_IN 0x1 -#define DTD_OUT 0x2 -#define DTD_NONE 0x3 -#define HA_CMD_INQUIRY 0x1 -#define HA_CMD_SELF_DIAG 0x2 -#define HA_CMD_READ_BUFF 0x3 -#define HA_CMD_WRITE_BUFF 0x4 - -#undef DEBUG_LINKED_COMMANDS -#undef DEBUG_DETECT -#undef DEBUG_INTERRUPT -#undef DEBUG_RESET -#undef DEBUG_GENERATE_ERRORS -#undef DEBUG_GENERATE_ABORTS -#undef DEBUG_GEOMETRY - -#define MAX_ISA 3 -#define MAX_VESA 1 -#define MAX_EISA 0 -#define MAX_PCI 0 -#define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI) -#define MAX_CHANNEL 1 -#define MAX_LUN 8 -#define MAX_TARGET 8 -#define MAX_MAILBOXES 16 -#define MAX_SGLIST 32 -#define MAX_SAFE_SGLIST 16 -#define MAX_INTERNAL_RETRIES 64 -#define MAX_CMD_PER_LUN 2 -#define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN) - -#define SKIP ULONG_MAX -#define FALSE 0 -#define TRUE 1 -#define FREE 0 -#define IN_USE 1 -#define LOCKED 2 -#define IN_RESET 3 -#define IGNORE 4 -#define READY 5 -#define ABORTING 6 -#define NO_DMA 0xff -#define MAXLOOP 10000 -#define TAG_DISABLED 0 -#define TAG_SIMPLE 1 -#define TAG_ORDERED 2 - -#define REG_LCL_MASK 0 -#define REG_LCL_INTR 1 -#define REG_SYS_MASK 2 -#define REG_SYS_INTR 3 -#define REG_PRODUCT_ID1 4 -#define REG_PRODUCT_ID2 5 -#define REG_CONFIG1 6 -#define REG_CONFIG2 7 -#define REG_OGM 8 -#define REG_ICM 12 -#define REGION_SIZE 13UL -#define BSY_ASSERTED 0x01 -#define IRQ_ASSERTED 0x01 -#define CMD_RESET 0xc0 -#define CMD_OGM_INTR 0x01 -#define CMD_CLR_INTR 0x01 -#define CMD_ENA_INTR 0x81 -#define ASOK 0x00 -#define ASST 0x91 - -#define YESNO(a) ((a) ? 'y' : 'n') -#define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM) - -#define PACKED __attribute__((packed)) - -struct sg_list { - unsigned int address; /* Segment Address */ - unsigned int num_bytes; /* Segment Length */ - }; - -/* MailBox SCSI Command Packet */ -struct mscp { - -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned char sg:1, ca:1, dcn:1, xdir:2, opcode:3; - unsigned char lun: 3, channel:2, target:3; -#else - unsigned char opcode: 3, /* type of command */ - xdir: 2, /* data transfer direction */ - dcn: 1, /* disable disconnect */ - ca: 1, /* use cache (if available) */ - sg: 1; /* scatter/gather operation */ - unsigned char target: 3, /* SCSI target id */ - channel: 2, /* SCSI channel number */ - lun: 3; /* SCSI logical unit number */ -#endif - - unsigned int data_address PACKED; /* transfer data pointer */ - unsigned int data_len PACKED; /* length in bytes */ - unsigned int link_address PACKED; /* for linking command chains */ - unsigned char clink_id; /* identifies command in chain */ - unsigned char use_sg; /* (if sg is set) 8 bytes per list */ - unsigned char sense_len; - unsigned char cdb_len; /* 6, 10, or 12 */ - unsigned char cdb[12]; /* SCSI Command Descriptor Block */ - unsigned char adapter_status; /* non-zero indicates HA error */ - unsigned char target_status; /* non-zero indicates target error */ - unsigned int sense_addr PACKED; - - /* Additional fields begin here. */ - struct scsi_cmnd *SCpnt; - unsigned int cpp_index; /* cp index */ - - /* All the cp structure is zero filled by queuecommand except the - following CP_TAIL_SIZE bytes, initialized by detect */ - dma_addr_t cp_dma_addr; /* dma handle for this cp structure */ - struct sg_list *sglist; /* pointer to the allocated SG list */ - }; - -#define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t)) - -struct hostdata { - struct mscp cp[MAX_MAILBOXES]; /* Mailboxes for this board */ - unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */ - unsigned int last_cp_used; /* Index of last mailbox used */ - unsigned int iocount; /* Total i/o done for this board */ - int board_number; /* Number of this board */ - char board_name[16]; /* Name of this board */ - int in_reset; /* True if board is doing a reset */ - int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */ - int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If TRUE redo i/o on target */ - unsigned int retries; /* Number of internal retries */ - unsigned long last_retried_pid; /* Pid of last retried command */ - unsigned char subversion; /* Bus type, either ISA or ESA */ - struct pci_dev *pdev; /* Always NULL */ - unsigned char heads; - unsigned char sectors; - char board_id[256]; /* data from INQUIRY on this board */ - }; - -static struct Scsi_Host *sh[MAX_BOARDS + 1]; -static const char *driver_name = "Ux4F"; -static char sha[MAX_BOARDS]; -static DEFINE_SPINLOCK(driver_lock); - -/* Initialize num_boards so that ihdlr can work while detect is in progress */ -static unsigned int num_boards = MAX_BOARDS; - -static unsigned long io_port[] = { - - /* Space for MAX_INT_PARAM ports usable while loading as a module */ - SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, - SKIP, SKIP, - - /* Possible ISA/VESA ports */ - 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140, - - /* End of list */ - 0x0 - }; - -#define HD(board) ((struct hostdata *) &sh[board]->hostdata) -#define BN(board) (HD(board)->board_name) - -/* Device is Little Endian */ -#define H2DEV(x) cpu_to_le32(x) -#define DEV2H(x) le32_to_cpu(x) - -static irqreturn_t do_interrupt_handler(int, void *); -static void flush_dev(struct scsi_device *, unsigned long, unsigned int, unsigned int); -static int do_trace = FALSE; -static int setup_done = FALSE; -static int link_statistics; -static int ext_tran = FALSE; - -#if defined(HAVE_OLD_UX4F_FIRMWARE) -static int have_old_firmware = TRUE; -#else -static int have_old_firmware = FALSE; -#endif - -#if defined(CONFIG_SCSI_U14_34F_TAGGED_QUEUE) -static int tag_mode = TAG_SIMPLE; -#else -static int tag_mode = TAG_DISABLED; -#endif - -#if defined(CONFIG_SCSI_U14_34F_LINKED_COMMANDS) -static int linked_comm = TRUE; -#else -static int linked_comm = FALSE; -#endif - -#if defined(CONFIG_SCSI_U14_34F_MAX_TAGS) -static int max_queue_depth = CONFIG_SCSI_U14_34F_MAX_TAGS; -#else -static int max_queue_depth = MAX_CMD_PER_LUN; -#endif - -#define MAX_INT_PARAM 10 -#define MAX_BOOT_OPTIONS_SIZE 256 -static char boot_options[MAX_BOOT_OPTIONS_SIZE]; - -#if defined(MODULE) -#include <linux/module.h> -#include <linux/moduleparam.h> - -module_param_string(u14_34f, boot_options, MAX_BOOT_OPTIONS_SIZE, 0); -MODULE_PARM_DESC(u14_34f, " equivalent to the \"u14-34f=...\" kernel boot " \ -"option." \ -" Example: modprobe u14-34f \"u14_34f=0x340,0x330,lc:y,tm:0,mq:4\""); -MODULE_AUTHOR("Dario Ballabio"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("UltraStor 14F/34F SCSI Driver"); - -#endif - -static int u14_34f_slave_configure(struct scsi_device *dev) { - int j, tqd, utqd; - char *tag_suffix, *link_suffix; - struct Scsi_Host *host = dev->host; - - j = ((struct hostdata *) host->hostdata)->board_number; - - utqd = MAX_CMD_PER_LUN; - tqd = max_queue_depth; - - if (TLDEV(dev->type) && dev->tagged_supported) - - if (tag_mode == TAG_SIMPLE) { - scsi_change_queue_depth(dev, tqd); - tag_suffix = ", simple tags"; - } - else if (tag_mode == TAG_ORDERED) { - scsi_change_queue_depth(dev, tqd); - tag_suffix = ", ordered tags"; - } - else { - scsi_change_queue_depth(dev, tqd); - tag_suffix = ", no tags"; - } - - else if (TLDEV(dev->type) && linked_comm) { - scsi_change_queue_depth(dev, tqd); - tag_suffix = ", untagged"; - } - - else { - scsi_change_queue_depth(dev, utqd); - tag_suffix = ""; - } - - if (TLDEV(dev->type) && linked_comm && dev->queue_depth > 2) - link_suffix = ", sorted"; - else if (TLDEV(dev->type)) - link_suffix = ", unsorted"; - else - link_suffix = ""; - - sdev_printk(KERN_INFO, dev, "cmds/lun %d%s%s.\n", - dev->queue_depth, link_suffix, tag_suffix); - - return FALSE; -} - -static int wait_on_busy(unsigned long iobase, unsigned int loop) { - - while (inb(iobase + REG_LCL_INTR) & BSY_ASSERTED) { - udelay(1L); - if (--loop == 0) return TRUE; - } - - return FALSE; -} - -static int board_inquiry(unsigned int j) { - struct mscp *cpp; - dma_addr_t id_dma_addr; - unsigned int limit = 0; - unsigned long time; - - id_dma_addr = pci_map_single(HD(j)->pdev, HD(j)->board_id, - sizeof(HD(j)->board_id), PCI_DMA_BIDIRECTIONAL); - cpp = &HD(j)->cp[0]; - cpp->cp_dma_addr = pci_map_single(HD(j)->pdev, cpp, sizeof(struct mscp), - PCI_DMA_BIDIRECTIONAL); - memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE); - cpp->opcode = OP_HOST_ADAPTER; - cpp->xdir = DTD_IN; - cpp->data_address = H2DEV(id_dma_addr); - cpp->data_len = H2DEV(sizeof(HD(j)->board_id)); - cpp->cdb_len = 6; - cpp->cdb[0] = HA_CMD_INQUIRY; - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - printk("%s: board_inquiry, adapter busy.\n", BN(j)); - return TRUE; - } - - HD(j)->cp_stat[0] = IGNORE; - - /* Clear the interrupt indication */ - outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); - - /* Store pointer in OGM address bytes */ - outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); - - /* Issue OGM interrupt */ - outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); - - spin_unlock_irq(&driver_lock); - time = jiffies; - while ((jiffies - time) < HZ && limit++ < 20000) udelay(100L); - spin_lock_irq(&driver_lock); - - if (cpp->adapter_status || HD(j)->cp_stat[0] != FREE) { - HD(j)->cp_stat[0] = FREE; - printk("%s: board_inquiry, err 0x%x.\n", BN(j), cpp->adapter_status); - return TRUE; - } - - pci_unmap_single(HD(j)->pdev, cpp->cp_dma_addr, sizeof(struct mscp), - PCI_DMA_BIDIRECTIONAL); - pci_unmap_single(HD(j)->pdev, id_dma_addr, sizeof(HD(j)->board_id), - PCI_DMA_BIDIRECTIONAL); - return FALSE; -} - -static int port_detect \ - (unsigned long port_base, unsigned int j, struct scsi_host_template *tpnt) { - unsigned char irq, dma_channel, subversion, i; - unsigned char in_byte; - char *bus_type, dma_name[16]; - - /* Allowed BIOS base addresses (NULL indicates reserved) */ - unsigned long bios_segment_table[8] = { - 0, - 0xc4000, 0xc8000, 0xcc000, 0xd0000, - 0xd4000, 0xd8000, 0xdc000 - }; - - /* Allowed IRQs */ - unsigned char interrupt_table[4] = { 15, 14, 11, 10 }; - - /* Allowed DMA channels for ISA (0 indicates reserved) */ - unsigned char dma_channel_table[4] = { 5, 6, 7, 0 }; - - /* Head/sector mappings */ - struct { - unsigned char heads; - unsigned char sectors; - } mapping_table[4] = { - { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 } - }; - - struct config_1 { - -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned char dma_channel: 2, interrupt:2, - removable_disks_as_fixed:1, bios_segment: 3; -#else - unsigned char bios_segment: 3, removable_disks_as_fixed: 1, - interrupt: 2, dma_channel: 2; -#endif - - } config_1; - - struct config_2 { - -#if defined(__BIG_ENDIAN_BITFIELD) - unsigned char tfr_port: 2, bios_drive_number: 1, - mapping_mode: 2, ha_scsi_id: 3; -#else - unsigned char ha_scsi_id: 3, mapping_mode: 2, - bios_drive_number: 1, tfr_port: 2; -#endif - - } config_2; - - char name[16]; - - sprintf(name, "%s%d", driver_name, j); - - if (!request_region(port_base, REGION_SIZE, driver_name)) { -#if defined(DEBUG_DETECT) - printk("%s: address 0x%03lx in use, skipping probe.\n", name, port_base); -#endif - goto fail; - } - - spin_lock_irq(&driver_lock); - - if (inb(port_base + REG_PRODUCT_ID1) != PRODUCT_ID1) goto freelock; - - in_byte = inb(port_base + REG_PRODUCT_ID2); - - if ((in_byte & 0xf0) != PRODUCT_ID2) goto freelock; - - *(char *)&config_1 = inb(port_base + REG_CONFIG1); - *(char *)&config_2 = inb(port_base + REG_CONFIG2); - - irq = interrupt_table[config_1.interrupt]; - dma_channel = dma_channel_table[config_1.dma_channel]; - subversion = (in_byte & 0x0f); - - /* Board detected, allocate its IRQ */ - if (request_irq(irq, do_interrupt_handler, - (subversion == ESA) ? IRQF_SHARED : 0, - driver_name, (void *) &sha[j])) { - printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq); - goto freelock; - } - - if (subversion == ISA && request_dma(dma_channel, driver_name)) { - printk("%s: unable to allocate DMA channel %u, detaching.\n", - name, dma_channel); - goto freeirq; - } - - if (have_old_firmware) tpnt->use_clustering = DISABLE_CLUSTERING; - - spin_unlock_irq(&driver_lock); - sh[j] = scsi_register(tpnt, sizeof(struct hostdata)); - spin_lock_irq(&driver_lock); - - if (sh[j] == NULL) { - printk("%s: unable to register host, detaching.\n", name); - goto freedma; - } - - sh[j]->io_port = port_base; - sh[j]->unique_id = port_base; - sh[j]->n_io_port = REGION_SIZE; - sh[j]->base = bios_segment_table[config_1.bios_segment]; - sh[j]->irq = irq; - sh[j]->sg_tablesize = MAX_SGLIST; - sh[j]->this_id = config_2.ha_scsi_id; - sh[j]->can_queue = MAX_MAILBOXES; - sh[j]->cmd_per_lun = MAX_CMD_PER_LUN; - -#if defined(DEBUG_DETECT) - { - unsigned char sys_mask, lcl_mask; - - sys_mask = inb(sh[j]->io_port + REG_SYS_MASK); - lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK); - printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask, lcl_mask); - } -#endif - - /* Probably a bogus host scsi id, set it to the dummy value */ - if (sh[j]->this_id == 0) sh[j]->this_id = -1; - - /* If BIOS is disabled, force enable interrupts */ - if (sh[j]->base == 0) outb(CMD_ENA_INTR, sh[j]->io_port + REG_SYS_MASK); - - memset(HD(j), 0, sizeof(struct hostdata)); - HD(j)->heads = mapping_table[config_2.mapping_mode].heads; - HD(j)->sectors = mapping_table[config_2.mapping_mode].sectors; - HD(j)->subversion = subversion; - HD(j)->pdev = NULL; - HD(j)->board_number = j; - - if (have_old_firmware) sh[j]->sg_tablesize = MAX_SAFE_SGLIST; - - if (HD(j)->subversion == ESA) { - sh[j]->unchecked_isa_dma = FALSE; - sh[j]->dma_channel = NO_DMA; - sprintf(BN(j), "U34F%d", j); - bus_type = "VESA"; - } - else { - unsigned long flags; - sh[j]->unchecked_isa_dma = TRUE; - - flags=claim_dma_lock(); - disable_dma(dma_channel); - clear_dma_ff(dma_channel); - set_dma_mode(dma_channel, DMA_MODE_CASCADE); - enable_dma(dma_channel); - release_dma_lock(flags); - - sh[j]->dma_channel = dma_channel; - sprintf(BN(j), "U14F%d", j); - bus_type = "ISA"; - } - - sh[j]->max_channel = MAX_CHANNEL - 1; - sh[j]->max_id = MAX_TARGET; - sh[j]->max_lun = MAX_LUN; - - if (HD(j)->subversion == ISA && !board_inquiry(j)) { - HD(j)->board_id[40] = 0; - - if (strcmp(&HD(j)->board_id[32], "06000600")) { - printk("%s: %s.\n", BN(j), &HD(j)->board_id[8]); - printk("%s: firmware %s is outdated, FW PROM should be 28004-006.\n", - BN(j), &HD(j)->board_id[32]); - sh[j]->hostt->use_clustering = DISABLE_CLUSTERING; - sh[j]->sg_tablesize = MAX_SAFE_SGLIST; - } - } - - if (dma_channel == NO_DMA) sprintf(dma_name, "%s", "BMST"); - else sprintf(dma_name, "DMA %u", dma_channel); - - spin_unlock_irq(&driver_lock); - - for (i = 0; i < sh[j]->can_queue; i++) - HD(j)->cp[i].cp_dma_addr = pci_map_single(HD(j)->pdev, - &HD(j)->cp[i], sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL); - - for (i = 0; i < sh[j]->can_queue; i++) - if (! ((&HD(j)->cp[i])->sglist = kmalloc( - sh[j]->sg_tablesize * sizeof(struct sg_list), - (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) { - printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i); - goto release; - } - - if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN) - max_queue_depth = MAX_TAGGED_CMD_PER_LUN; - - if (max_queue_depth < MAX_CMD_PER_LUN) max_queue_depth = MAX_CMD_PER_LUN; - - if (tag_mode != TAG_DISABLED && tag_mode != TAG_SIMPLE) - tag_mode = TAG_ORDERED; - - if (j == 0) { - printk("UltraStor 14F/34F: Copyright (C) 1994-2003 Dario Ballabio.\n"); - printk("%s config options -> of:%c, tm:%d, lc:%c, mq:%d, et:%c.\n", - driver_name, YESNO(have_old_firmware), tag_mode, - YESNO(linked_comm), max_queue_depth, YESNO(ext_tran)); - } - - printk("%s: %s 0x%03lx, BIOS 0x%05x, IRQ %u, %s, SG %d, MB %d.\n", - BN(j), bus_type, (unsigned long)sh[j]->io_port, (int)sh[j]->base, - sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue); - - if (sh[j]->max_id > 8 || sh[j]->max_lun > 8) - printk("%s: wide SCSI support enabled, max_id %u, max_lun %llu.\n", - BN(j), sh[j]->max_id, sh[j]->max_lun); - - for (i = 0; i <= sh[j]->max_channel; i++) - printk("%s: SCSI channel %u enabled, host target ID %d.\n", - BN(j), i, sh[j]->this_id); - - return TRUE; - -freedma: - if (subversion == ISA) free_dma(dma_channel); -freeirq: - free_irq(irq, &sha[j]); -freelock: - spin_unlock_irq(&driver_lock); - release_region(port_base, REGION_SIZE); -fail: - return FALSE; - -release: - u14_34f_release(sh[j]); - return FALSE; -} - -static void internal_setup(char *str, int *ints) { - int i, argc = ints[0]; - char *cur = str, *pc; - - if (argc > 0) { - - if (argc > MAX_INT_PARAM) argc = MAX_INT_PARAM; - - for (i = 0; i < argc; i++) io_port[i] = ints[i + 1]; - - io_port[i] = 0; - setup_done = TRUE; - } - - while (cur && (pc = strchr(cur, ':'))) { - int val = 0, c = *++pc; - - if (c == 'n' || c == 'N') val = FALSE; - else if (c == 'y' || c == 'Y') val = TRUE; - else val = (int) simple_strtoul(pc, NULL, 0); - - if (!strncmp(cur, "lc:", 3)) linked_comm = val; - else if (!strncmp(cur, "of:", 3)) have_old_firmware = val; - else if (!strncmp(cur, "tm:", 3)) tag_mode = val; - else if (!strncmp(cur, "tc:", 3)) tag_mode = val; - else if (!strncmp(cur, "mq:", 3)) max_queue_depth = val; - else if (!strncmp(cur, "ls:", 3)) link_statistics = val; - else if (!strncmp(cur, "et:", 3)) ext_tran = val; - - if ((cur = strchr(cur, ','))) ++cur; - } - - return; -} - -static int option_setup(char *str) { - int ints[MAX_INT_PARAM]; - char *cur = str; - int i = 1; - - while (cur && isdigit(*cur) && i < MAX_INT_PARAM) { - ints[i++] = simple_strtoul(cur, NULL, 0); - - if ((cur = strchr(cur, ',')) != NULL) cur++; - } - - ints[0] = i - 1; - internal_setup(cur, ints); - return 1; -} - -static int u14_34f_detect(struct scsi_host_template *tpnt) { - unsigned int j = 0, k; - - tpnt->proc_name = "u14-34f"; - - if(strlen(boot_options)) option_setup(boot_options); - -#if defined(MODULE) - /* io_port could have been modified when loading as a module */ - if(io_port[0] != SKIP) { - setup_done = TRUE; - io_port[MAX_INT_PARAM] = 0; - } -#endif - - for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL; - - for (k = 0; io_port[k]; k++) { - - if (io_port[k] == SKIP) continue; - - if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++; - } - - num_boards = j; - return j; -} - -static void map_dma(unsigned int i, unsigned int j) { - unsigned int data_len = 0; - unsigned int k, pci_dir; - int count; - struct scatterlist *sg; - struct mscp *cpp; - struct scsi_cmnd *SCpnt; - - cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; - pci_dir = SCpnt->sc_data_direction; - - if (SCpnt->sense_buffer) - cpp->sense_addr = H2DEV(pci_map_single(HD(j)->pdev, SCpnt->sense_buffer, - SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE)); - - cpp->sense_len = SCSI_SENSE_BUFFERSIZE; - - if (scsi_bufflen(SCpnt)) { - count = scsi_dma_map(SCpnt); - BUG_ON(count < 0); - - scsi_for_each_sg(SCpnt, sg, count, k) { - cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); - cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); - data_len += sg->length; - } - - cpp->sg = TRUE; - cpp->use_sg = scsi_sg_count(SCpnt); - cpp->data_address = - H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist, - cpp->use_sg * sizeof(struct sg_list), - pci_dir)); - cpp->data_len = H2DEV(data_len); - - } else { - pci_dir = PCI_DMA_BIDIRECTIONAL; - cpp->data_len = H2DEV(scsi_bufflen(SCpnt)); - } -} - -static void unmap_dma(unsigned int i, unsigned int j) { - unsigned int pci_dir; - struct mscp *cpp; - struct scsi_cmnd *SCpnt; - - cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; - pci_dir = SCpnt->sc_data_direction; - - if (DEV2H(cpp->sense_addr)) - pci_unmap_single(HD(j)->pdev, DEV2H(cpp->sense_addr), - DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - - scsi_dma_unmap(SCpnt); - - if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; - - if (DEV2H(cpp->data_address)) - pci_unmap_single(HD(j)->pdev, DEV2H(cpp->data_address), - DEV2H(cpp->data_len), pci_dir); -} - -static void sync_dma(unsigned int i, unsigned int j) { - unsigned int pci_dir; - struct mscp *cpp; - struct scsi_cmnd *SCpnt; - - cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; - pci_dir = SCpnt->sc_data_direction; - - if (DEV2H(cpp->sense_addr)) - pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->sense_addr), - DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - - if (scsi_sg_count(SCpnt)) - pci_dma_sync_sg_for_cpu(HD(j)->pdev, scsi_sglist(SCpnt), - scsi_sg_count(SCpnt), pci_dir); - - if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; - - if (DEV2H(cpp->data_address)) - pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->data_address), - DEV2H(cpp->data_len), pci_dir); -} - -static void scsi_to_dev_dir(unsigned int i, unsigned int j) { - unsigned int k; - - static const unsigned char data_out_cmds[] = { - 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e, - 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40, - 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d - }; - - static const unsigned char data_none_cmds[] = { - 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e, - 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47, - 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00 - }; - - struct mscp *cpp; - struct scsi_cmnd *SCpnt; - - cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt; - - if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) { - cpp->xdir = DTD_IN; - return; - } - else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) { - cpp->xdir = DTD_OUT; - return; - } - else if (SCpnt->sc_data_direction == DMA_NONE) { - cpp->xdir = DTD_NONE; - return; - } - - if (SCpnt->sc_data_direction != DMA_BIDIRECTIONAL) - panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n", BN(j)); - - cpp->xdir = DTD_IN; - - for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++) - if (SCpnt->cmnd[0] == data_out_cmds[k]) { - cpp->xdir = DTD_OUT; - break; - } - - if (cpp->xdir == DTD_IN) - for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++) - if (SCpnt->cmnd[0] == data_none_cmds[k]) { - cpp->xdir = DTD_NONE; - break; - } - -} - -static int u14_34f_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) { - unsigned int i, j, k; - struct mscp *cpp; - - /* j is the board number */ - j = ((struct hostdata *) SCpnt->device->host->hostdata)->board_number; - - if (SCpnt->host_scribble) - panic("%s: qcomm, SCpnt %p already active.\n", - BN(j), SCpnt); - - /* i is the mailbox number, look for the first free mailbox - starting from last_cp_used */ - i = HD(j)->last_cp_used + 1; - - for (k = 0; k < sh[j]->can_queue; k++, i++) { - - if (i >= sh[j]->can_queue) i = 0; - - if (HD(j)->cp_stat[i] == FREE) { - HD(j)->last_cp_used = i; - break; - } - } - - if (k == sh[j]->can_queue) { - printk("%s: qcomm, no free mailbox.\n", BN(j)); - return 1; - } - - /* Set pointer to control packet structure */ - cpp = &HD(j)->cp[i]; - - memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE); - SCpnt->scsi_done = done; - cpp->cpp_index = i; - SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index; - - if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%u.\n", - BN(j), i, SCpnt->device->channel, SCpnt->device->id, - (u8)SCpnt->device->lun); - - cpp->opcode = OP_SCSI; - cpp->channel = SCpnt->device->channel; - cpp->target = SCpnt->device->id; - cpp->lun = (u8)SCpnt->device->lun; - cpp->SCpnt = SCpnt; - cpp->cdb_len = SCpnt->cmd_len; - memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len); - - /* Use data transfer direction SCpnt->sc_data_direction */ - scsi_to_dev_dir(i, j); - - /* Map DMA buffers and SG list */ - map_dma(i, j); - - if (linked_comm && SCpnt->device->queue_depth > 2 - && TLDEV(SCpnt->device->type)) { - HD(j)->cp_stat[i] = READY; - flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, FALSE); - return 0; - } - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - unmap_dma(i, j); - SCpnt->host_scribble = NULL; - scmd_printk(KERN_INFO, SCpnt, - "qcomm, adapter busy.\n"); - return 1; - } - - /* Store pointer in OGM address bytes */ - outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); - - /* Issue OGM interrupt */ - outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); - - HD(j)->cp_stat[i] = IN_USE; - return 0; -} - -static DEF_SCSI_QCMD(u14_34f_queuecommand) - -static int u14_34f_eh_abort(struct scsi_cmnd *SCarg) { - unsigned int i, j; - - j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number; - - if (SCarg->host_scribble == NULL) { - scmd_printk(KERN_INFO, SCarg, "abort, command inactive.\n"); - return SUCCESS; - } - - i = *(unsigned int *)SCarg->host_scribble; - scmd_printk(KERN_INFO, SCarg, "abort, mbox %d.\n", i); - - if (i >= sh[j]->can_queue) - panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j)); - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - printk("%s: abort, timeout error.\n", BN(j)); - return FAILED; - } - - if (HD(j)->cp_stat[i] == FREE) { - printk("%s: abort, mbox %d is free.\n", BN(j), i); - return SUCCESS; - } - - if (HD(j)->cp_stat[i] == IN_USE) { - printk("%s: abort, mbox %d is in use.\n", BN(j), i); - - if (SCarg != HD(j)->cp[i].SCpnt) - panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n", - BN(j), i, SCarg, HD(j)->cp[i].SCpnt); - - if (inb(sh[j]->io_port + REG_SYS_INTR) & IRQ_ASSERTED) - printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i); - - return FAILED; - } - - if (HD(j)->cp_stat[i] == IN_RESET) { - printk("%s: abort, mbox %d is in reset.\n", BN(j), i); - return FAILED; - } - - if (HD(j)->cp_stat[i] == LOCKED) { - printk("%s: abort, mbox %d is locked.\n", BN(j), i); - return SUCCESS; - } - - if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) { - unmap_dma(i, j); - SCarg->result = DID_ABORT << 16; - SCarg->host_scribble = NULL; - HD(j)->cp_stat[i] = FREE; - printk("%s, abort, mbox %d ready, DID_ABORT, done.\n", BN(j), i); - SCarg->scsi_done(SCarg); - return SUCCESS; - } - - panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i); -} - -static int u14_34f_eh_host_reset(struct scsi_cmnd *SCarg) { - unsigned int i, j, k, c, limit = 0; - unsigned long time; - int arg_done = FALSE; - struct scsi_cmnd *SCpnt; - - j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number; - scmd_printk(KERN_INFO, SCarg, "reset, enter.\n"); - - spin_lock_irq(sh[j]->host_lock); - - if (SCarg->host_scribble == NULL) - printk("%s: reset, inactive.\n", BN(j)); - - if (HD(j)->in_reset) { - printk("%s: reset, exit, already in reset.\n", BN(j)); - spin_unlock_irq(sh[j]->host_lock); - return FAILED; - } - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - printk("%s: reset, exit, timeout error.\n", BN(j)); - spin_unlock_irq(sh[j]->host_lock); - return FAILED; - } - - HD(j)->retries = 0; - - for (c = 0; c <= sh[j]->max_channel; c++) - for (k = 0; k < sh[j]->max_id; k++) { - HD(j)->target_redo[k][c] = TRUE; - HD(j)->target_to[k][c] = 0; - } - - for (i = 0; i < sh[j]->can_queue; i++) { - - if (HD(j)->cp_stat[i] == FREE) continue; - - if (HD(j)->cp_stat[i] == LOCKED) { - HD(j)->cp_stat[i] = FREE; - printk("%s: reset, locked mbox %d forced free.\n", BN(j), i); - continue; - } - - if (!(SCpnt = HD(j)->cp[i].SCpnt)) - panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i); - - if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) { - HD(j)->cp_stat[i] = ABORTING; - printk("%s: reset, mbox %d aborting.\n", BN(j), i); - } - - else { - HD(j)->cp_stat[i] = IN_RESET; - printk("%s: reset, mbox %d in reset.\n", BN(j), i); - } - - if (SCpnt->host_scribble == NULL) - panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i); - - if (*(unsigned int *)SCpnt->host_scribble != i) - panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i); - - if (SCpnt->scsi_done == NULL) - panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i); - - if (SCpnt == SCarg) arg_done = TRUE; - } - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - printk("%s: reset, cannot reset, timeout error.\n", BN(j)); - spin_unlock_irq(sh[j]->host_lock); - return FAILED; - } - - outb(CMD_RESET, sh[j]->io_port + REG_LCL_INTR); - printk("%s: reset, board reset done, enabling interrupts.\n", BN(j)); - -#if defined(DEBUG_RESET) - do_trace = TRUE; -#endif - - HD(j)->in_reset = TRUE; - - spin_unlock_irq(sh[j]->host_lock); - time = jiffies; - while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L); - spin_lock_irq(sh[j]->host_lock); - - printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit); - - for (i = 0; i < sh[j]->can_queue; i++) { - - if (HD(j)->cp_stat[i] == IN_RESET) { - SCpnt = HD(j)->cp[i].SCpnt; - unmap_dma(i, j); - SCpnt->result = DID_RESET << 16; - SCpnt->host_scribble = NULL; - - /* This mailbox is still waiting for its interrupt */ - HD(j)->cp_stat[i] = LOCKED; - - printk("%s, reset, mbox %d locked, DID_RESET, done.\n", BN(j), i); - } - - else if (HD(j)->cp_stat[i] == ABORTING) { - SCpnt = HD(j)->cp[i].SCpnt; - unmap_dma(i, j); - SCpnt->result = DID_RESET << 16; - SCpnt->host_scribble = NULL; - - /* This mailbox was never queued to the adapter */ - HD(j)->cp_stat[i] = FREE; - - printk("%s, reset, mbox %d aborting, DID_RESET, done.\n", BN(j), i); - } - - else - - /* Any other mailbox has already been set free by interrupt */ - continue; - - SCpnt->scsi_done(SCpnt); - } - - HD(j)->in_reset = FALSE; - do_trace = FALSE; - - if (arg_done) printk("%s: reset, exit, done.\n", BN(j)); - else printk("%s: reset, exit.\n", BN(j)); - - spin_unlock_irq(sh[j]->host_lock); - return SUCCESS; -} - -static int u14_34f_bios_param(struct scsi_device *disk, - struct block_device *bdev, sector_t capacity, int *dkinfo) { - unsigned int j = 0; - unsigned int size = capacity; - - dkinfo[0] = HD(j)->heads; - dkinfo[1] = HD(j)->sectors; - dkinfo[2] = size / (HD(j)->heads * HD(j)->sectors); - - if (ext_tran && (scsicam_bios_param(bdev, capacity, dkinfo) < 0)) { - dkinfo[0] = 255; - dkinfo[1] = 63; - dkinfo[2] = size / (dkinfo[0] * dkinfo[1]); - } - -#if defined (DEBUG_GEOMETRY) - printk ("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name, - dkinfo[0], dkinfo[1], dkinfo[2]); -#endif - - return FALSE; -} - -static void sort(unsigned long sk[], unsigned int da[], unsigned int n, - unsigned int rev) { - unsigned int i, j, k, y; - unsigned long x; - - for (i = 0; i < n - 1; i++) { - k = i; - - for (j = k + 1; j < n; j++) - if (rev) { - if (sk[j] > sk[k]) k = j; - } - else { - if (sk[j] < sk[k]) k = j; - } - - if (k != i) { - x = sk[k]; sk[k] = sk[i]; sk[i] = x; - y = da[k]; da[k] = da[i]; da[i] = y; - } - } - - return; - } - -static int reorder(unsigned int j, unsigned long cursec, - unsigned int ihdlr, unsigned int il[], unsigned int n_ready) { - struct scsi_cmnd *SCpnt; - struct mscp *cpp; - unsigned int k, n; - unsigned int rev = FALSE, s = TRUE, r = TRUE; - unsigned int input_only = TRUE, overlap = FALSE; - unsigned long sl[n_ready], pl[n_ready], ll[n_ready]; - unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0; - unsigned long ioseek = 0; - - static unsigned int flushcount = 0, batchcount = 0, sortcount = 0; - static unsigned int readycount = 0, ovlcount = 0, inputcount = 0; - static unsigned int readysorted = 0, revcount = 0; - static unsigned long seeksorted = 0, seeknosort = 0; - - if (link_statistics && !(++flushcount % link_statistics)) - printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\ - " av %ldK as %ldK.\n", flushcount, batchcount, inputcount, - ovlcount, readycount, readysorted, sortcount, revcount, - seeknosort / (readycount + 1), - seeksorted / (readycount + 1)); - - if (n_ready <= 1) return FALSE; - - for (n = 0; n < n_ready; n++) { - k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - - if (!(cpp->xdir == DTD_IN)) input_only = FALSE; - - if (blk_rq_pos(SCpnt->request) < minsec) - minsec = blk_rq_pos(SCpnt->request); - if (blk_rq_pos(SCpnt->request) > maxsec) - maxsec = blk_rq_pos(SCpnt->request); - - sl[n] = blk_rq_pos(SCpnt->request); - ioseek += blk_rq_sectors(SCpnt->request); - - if (!n) continue; - - if (sl[n] < sl[n - 1]) s = FALSE; - if (sl[n] > sl[n - 1]) r = FALSE; - - if (link_statistics) { - if (sl[n] > sl[n - 1]) - seek += sl[n] - sl[n - 1]; - else - seek += sl[n - 1] - sl[n]; - } - - } - - if (link_statistics) { - if (cursec > sl[0]) seek += cursec - sl[0]; else seek += sl[0] - cursec; - } - - if (cursec > ((maxsec + minsec) / 2)) rev = TRUE; - - if (ioseek > ((maxsec - minsec) / 2)) rev = FALSE; - - if (!((rev && r) || (!rev && s))) sort(sl, il, n_ready, rev); - - if (!input_only) for (n = 0; n < n_ready; n++) { - k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - ll[n] = blk_rq_sectors(SCpnt->request); pl[n] = SCpnt->serial_number; - - if (!n) continue; - - if ((sl[n] == sl[n - 1]) || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n])) - || (rev && ((sl[n] + ll[n]) > sl[n - 1]))) overlap = TRUE; - } - - if (overlap) sort(pl, il, n_ready, FALSE); - - if (link_statistics) { - if (cursec > sl[0]) iseek = cursec - sl[0]; else iseek = sl[0] - cursec; - batchcount++; readycount += n_ready; seeknosort += seek / 1024; - if (input_only) inputcount++; - if (overlap) { ovlcount++; seeksorted += iseek / 1024; } - else seeksorted += (iseek + maxsec - minsec) / 1024; - if (rev && !r) { revcount++; readysorted += n_ready; } - if (!rev && !s) { sortcount++; readysorted += n_ready; } - } - -#if defined(DEBUG_LINKED_COMMANDS) - if (link_statistics && (overlap || !(flushcount % link_statistics))) - for (n = 0; n < n_ready; n++) { - k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - printk("%s %d.%d:%llu mb %d fc %d nr %d sec %ld ns %u"\ - " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n", - (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target, - (u8)SCpnt->lun, k, flushcount, n_ready, - blk_rq_pos(SCpnt->request), blk_rq_sectors(SCpnt->request), - cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only), - YESNO(overlap), cpp->xdir); - } -#endif - return overlap; -} - -static void flush_dev(struct scsi_device *dev, unsigned long cursec, unsigned int j, - unsigned int ihdlr) { - struct scsi_cmnd *SCpnt; - struct mscp *cpp; - unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES]; - - for (k = 0; k < sh[j]->can_queue; k++) { - - if (HD(j)->cp_stat[k] != READY && HD(j)->cp_stat[k] != IN_USE) continue; - - cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - - if (SCpnt->device != dev) continue; - - if (HD(j)->cp_stat[k] == IN_USE) return; - - il[n_ready++] = k; - } - - if (reorder(j, cursec, ihdlr, il, n_ready)) n_ready = 1; - - for (n = 0; n < n_ready; n++) { - k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt; - - if (wait_on_busy(sh[j]->io_port, MAXLOOP)) { - scmd_printk(KERN_INFO, SCpnt, - "%s, mbox %d, adapter" - " busy, will abort.\n", (ihdlr ? "ihdlr" : "qcomm"), - k); - HD(j)->cp_stat[k] = ABORTING; - continue; - } - - outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM); - outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); - HD(j)->cp_stat[k] = IN_USE; - } - -} - -static irqreturn_t ihdlr(unsigned int j) -{ - struct scsi_cmnd *SCpnt; - unsigned int i, k, c, status, tstatus, reg, ret; - struct mscp *spp, *cpp; - int irq = sh[j]->irq; - - /* Check if this board need to be serviced */ - if (!((reg = inb(sh[j]->io_port + REG_SYS_INTR)) & IRQ_ASSERTED)) goto none; - - HD(j)->iocount++; - - if (do_trace) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j), irq, - HD(j)->iocount); - - /* Check if this board is still busy */ - if (wait_on_busy(sh[j]->io_port, 20 * MAXLOOP)) { - outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); - printk("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n", - BN(j), irq, reg, HD(j)->iocount); - goto none; - } - - ret = inl(sh[j]->io_port + REG_ICM); - - /* Clear interrupt pending flag */ - outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); - - /* Find the mailbox to be serviced on this board */ - for (i = 0; i < sh[j]->can_queue; i++) - if (H2DEV(HD(j)->cp[i].cp_dma_addr) == ret) break; - - if (i >= sh[j]->can_queue) - panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j), - (void *)ret, (void *)H2DEV(HD(j)->cp[0].cp_dma_addr)); - - cpp = &(HD(j)->cp[i]); - spp = cpp; - -#if defined(DEBUG_GENERATE_ABORTS) - if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 500) < 3)) goto handled; -#endif - - if (HD(j)->cp_stat[i] == IGNORE) { - HD(j)->cp_stat[i] = FREE; - goto handled; - } - else if (HD(j)->cp_stat[i] == LOCKED) { - HD(j)->cp_stat[i] = FREE; - printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i, - HD(j)->iocount); - goto handled; - } - else if (HD(j)->cp_stat[i] == FREE) { - printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j), i, - HD(j)->iocount); - goto handled; - } - else if (HD(j)->cp_stat[i] == IN_RESET) - printk("%s: ihdlr, mbox %d is in reset.\n", BN(j), i); - else if (HD(j)->cp_stat[i] != IN_USE) - panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n", - BN(j), i, HD(j)->cp_stat[i]); - - HD(j)->cp_stat[i] = FREE; - SCpnt = cpp->SCpnt; - - if (SCpnt == NULL) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j), i); - - if (SCpnt->host_scribble == NULL) - panic("%s: ihdlr, mbox %d, SCpnt %p garbled.\n", BN(j), i, - SCpnt); - - if (*(unsigned int *)SCpnt->host_scribble != i) - panic("%s: ihdlr, mbox %d, index mismatch %d.\n", - BN(j), i, *(unsigned int *)SCpnt->host_scribble); - - sync_dma(i, j); - - if (linked_comm && SCpnt->device->queue_depth > 2 - && TLDEV(SCpnt->device->type)) - flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, TRUE); - - tstatus = status_byte(spp->target_status); - -#if defined(DEBUG_GENERATE_ERRORS) - if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 200) < 2)) - spp->adapter_status = 0x01; -#endif - - switch (spp->adapter_status) { - case ASOK: /* status OK */ - - /* Forces a reset if a disk drive keeps returning BUSY */ - if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE) - status = DID_ERROR << 16; - - /* If there was a bus reset, redo operation on each target */ - else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK - && HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)]) - status = DID_BUS_BUSY << 16; - - /* Works around a flaw in scsi.c */ - else if (tstatus == CHECK_CONDITION - && SCpnt->device->type == TYPE_DISK - && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR) - status = DID_BUS_BUSY << 16; - - else - status = DID_OK << 16; - - if (tstatus == GOOD) - HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)] = FALSE; - - if (spp->target_status && SCpnt->device->type == TYPE_DISK && - (!(tstatus == CHECK_CONDITION && HD(j)->iocount <= 1000 && - (SCpnt->sense_buffer[2] & 0xf) == NOT_READY))) - scmd_printk(KERN_INFO, SCpnt, - "ihdlr, target_status 0x%x, sense key 0x%x.\n", - spp->target_status, - SCpnt->sense_buffer[2]); - - HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] = 0; - - if (HD(j)->last_retried_pid == SCpnt->serial_number) HD(j)->retries = 0; - - break; - case ASST: /* Selection Time Out */ - - if (HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] > 1) - status = DID_ERROR << 16; - else { - status = DID_TIME_OUT << 16; - HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)]++; - } - - break; - - /* Perform a limited number of internal retries */ - case 0x93: /* Unexpected bus free */ - case 0x94: /* Target bus phase sequence failure */ - case 0x96: /* Illegal SCSI command */ - case 0xa3: /* SCSI bus reset error */ - - for (c = 0; c <= sh[j]->max_channel; c++) - for (k = 0; k < sh[j]->max_id; k++) - HD(j)->target_redo[k][c] = TRUE; - - - case 0x92: /* Data over/under-run */ - - if (SCpnt->device->type != TYPE_TAPE - && HD(j)->retries < MAX_INTERNAL_RETRIES) { - -#if defined(DID_SOFT_ERROR) - status = DID_SOFT_ERROR << 16; -#else - status = DID_BUS_BUSY << 16; -#endif - - HD(j)->retries++; - HD(j)->last_retried_pid = SCpnt->serial_number; - } - else - status = DID_ERROR << 16; - - break; - case 0x01: /* Invalid command */ - case 0x02: /* Invalid parameters */ - case 0x03: /* Invalid data list */ - case 0x84: /* SCSI bus abort error */ - case 0x9b: /* Auto request sense error */ - case 0x9f: /* Unexpected command complete message error */ - case 0xff: /* Invalid parameter in the S/G list */ - default: - status = DID_ERROR << 16; - break; - } - - SCpnt->result = status | spp->target_status; - -#if defined(DEBUG_INTERRUPT) - if (SCpnt->result || do_trace) -#else - if ((spp->adapter_status != ASOK && HD(j)->iocount > 1000) || - (spp->adapter_status != ASOK && - spp->adapter_status != ASST && HD(j)->iocount <= 1000) || - do_trace || msg_byte(spp->target_status)) -#endif - scmd_printk(KERN_INFO, SCpnt, "ihdlr, mbox %2d, err 0x%x:%x,"\ - " reg 0x%x, count %d.\n", - i, spp->adapter_status, spp->target_status, - reg, HD(j)->iocount); - - unmap_dma(i, j); - - /* Set the command state to inactive */ - SCpnt->host_scribble = NULL; - - SCpnt->scsi_done(SCpnt); - - if (do_trace) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j), irq, - HD(j)->iocount); - -handled: - return IRQ_HANDLED; -none: - return IRQ_NONE; -} - -static irqreturn_t do_interrupt_handler(int irq, void *shap) { - unsigned int j; - unsigned long spin_flags; - irqreturn_t ret; - - /* Check if the interrupt must be processed by this handler */ - if ((j = (unsigned int)((char *)shap - sha)) >= num_boards) return IRQ_NONE; - - spin_lock_irqsave(sh[j]->host_lock, spin_flags); - ret = ihdlr(j); - spin_unlock_irqrestore(sh[j]->host_lock, spin_flags); - return ret; -} - -static int u14_34f_release(struct Scsi_Host *shpnt) { - unsigned int i, j; - - for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++); - - if (sh[j] == NULL) - panic("%s: release, invalid Scsi_Host pointer.\n", driver_name); - - for (i = 0; i < sh[j]->can_queue; i++) - kfree((&HD(j)->cp[i])->sglist); - - for (i = 0; i < sh[j]->can_queue; i++) - pci_unmap_single(HD(j)->pdev, HD(j)->cp[i].cp_dma_addr, - sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL); - - free_irq(sh[j]->irq, &sha[j]); - - if (sh[j]->dma_channel != NO_DMA) - free_dma(sh[j]->dma_channel); - - release_region(sh[j]->io_port, sh[j]->n_io_port); - scsi_unregister(sh[j]); - return FALSE; -} - -#include "scsi_module.c" - -#ifndef MODULE -__setup("u14-34f=", option_setup); -#endif /* end MODULE */ |