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authorPaul Gortmaker <paul.gortmaker@windriver.com>2013-09-12 16:18:00 +0200
committerJames Bottomley <JBottomley@Parallels.com>2013-12-19 16:39:02 +0100
commit1a4049ddfdaa75db7c9927dbc4d991bd73f923a0 (patch)
tree5e4456d426d8f9731ccf5071af645f5dccb62087 /drivers/scsi
parent[SCSI] MAINTAINERS: update sg entry (diff)
downloadlinux-1a4049ddfdaa75db7c9927dbc4d991bd73f923a0.tar.xz
linux-1a4049ddfdaa75db7c9927dbc4d991bd73f923a0.zip
[SCSI] aci7xxx_old: delete decade+ obsolete driver
After getting warnings in an allyesconfig build[1] from this driver, I decided to remind myself just how old it was, and whether it warranted fixing. In the Kconfig help text, I found: "This driver will eventually be phased out entirely" Going back to the history archive, I see the line was added[2] in Feb 2002, when we moved from v2.4.2.1 ---> v2.4.2.2 So, with over a decade of notification, and multiple major releases since then, I think we can justify removing this. Currently we have people wasting time building it during routine testing, and then wasting more time re-researching the known reported warnings, only to find that nobody really is willing to integrate the fixes[3] for it. A quick search didn't seem to indicate any active user base for it. If someone happens to have a quirky _old_ card that the eleven year old "new" driver doesn't work with, then it is entirely reasonable that they stick with a kernel version that predates this removal. [1] drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_register’: drivers/scsi/aic7xxx_old.c:7901:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch] drivers/scsi/aic7xxx_old.c:7898:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch] drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_load_seeprom’: drivers/scsi/aic7xxx_old.c:8517:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch] drivers/scsi/aic7xxx_old.c:8510:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch] [2] http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git commit 44e8778c [3] https://lkml.org/lkml/2012/10/29/215 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Hannes Reinecke <hare@suse.de> Acked-by: Doug Ledford <dledford@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/Kconfig41
-rw-r--r--drivers/scsi/Makefile1
-rw-r--r--drivers/scsi/aic7xxx_old.c11149
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.h28
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.reg1401
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.seq1539
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_proc.c270
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_reg.h629
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_seq.c817
-rw-r--r--drivers/scsi/aic7xxx_old/scsi_message.h49
-rw-r--r--drivers/scsi/aic7xxx_old/sequencer.h135
11 files changed, 0 insertions, 16059 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index fe25677a5511..1f02003ea08d 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -499,47 +499,6 @@ config SCSI_AACRAID
source "drivers/scsi/aic7xxx/Kconfig.aic7xxx"
-
-config SCSI_AIC7XXX_OLD
- tristate "Adaptec AIC7xxx support (old driver)"
- depends on (ISA || EISA || PCI ) && SCSI
- help
- WARNING This driver is an older aic7xxx driver and is no longer
- under active development. Adaptec, Inc. is writing a new driver to
- take the place of this one, and it is recommended that whenever
- possible, people should use the new Adaptec written driver instead
- of this one. This driver will eventually be phased out entirely.
-
- This is support for the various aic7xxx based Adaptec SCSI
- controllers. These include the 274x EISA cards; 284x VLB cards;
- 2902, 2910, 293x, 294x, 394x, 3985 and several other PCI and
- motherboard based SCSI controllers from Adaptec. It does not support
- the AAA-13x RAID controllers from Adaptec, nor will it likely ever
- support them. It does not support the 2920 cards from Adaptec that
- use the Future Domain SCSI controller chip. For those cards, you
- need the "Future Domain 16xx SCSI support" driver.
-
- In general, if the controller is based on an Adaptec SCSI controller
- chip from the aic777x series or the aic78xx series, this driver
- should work. The only exception is the 7810 which is specifically
- not supported (that's the RAID controller chip on the AAA-13x
- cards).
-
- Note that the AHA2920 SCSI host adapter is *not* supported by this
- driver; choose "Future Domain 16xx SCSI support" instead if you have
- one of those.
-
- Information on the configuration options for this controller can be
- found by checking the help file for each of the available
- configuration options. You should read
- <file:Documentation/scsi/aic7xxx_old.txt> at a minimum before
- contacting the maintainer with any questions. The SCSI-HOWTO,
- available from <http://www.tldp.org/docs.html#howto>, can also
- be of great help.
-
- To compile this driver as a module, choose M here: the
- module will be called aic7xxx_old.
-
source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
source "drivers/scsi/aic94xx/Kconfig"
source "drivers/scsi/mvsas/Kconfig"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 149bb6bf1849..e172d4f8e02f 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -70,7 +70,6 @@ obj-$(CONFIG_SCSI_AHA1740) += aha1740.o
obj-$(CONFIG_SCSI_AIC7XXX) += aic7xxx/
obj-$(CONFIG_SCSI_AIC79XX) += aic7xxx/
obj-$(CONFIG_SCSI_AACRAID) += aacraid/
-obj-$(CONFIG_SCSI_AIC7XXX_OLD) += aic7xxx_old.o
obj-$(CONFIG_SCSI_AIC94XX) += aic94xx/
obj-$(CONFIG_SCSI_PM8001) += pm8001/
obj-$(CONFIG_SCSI_ISCI) += isci/
diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
deleted file mode 100644
index 33ec9c643400..000000000000
--- a/drivers/scsi/aic7xxx_old.c
+++ /dev/null
@@ -1,11149 +0,0 @@
-/*+M*************************************************************************
- * Adaptec AIC7xxx device driver for Linux.
- *
- * Copyright (c) 1994 John Aycock
- * The University of Calgary Department of Computer Science.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Sources include the Adaptec 1740 driver (aha1740.c), the Ultrastor 24F
- * driver (ultrastor.c), various Linux kernel source, the Adaptec EISA
- * config file (!adp7771.cfg), the Adaptec AHA-2740A Series User's Guide,
- * the Linux Kernel Hacker's Guide, Writing a SCSI Device Driver for Linux,
- * the Adaptec 1542 driver (aha1542.c), the Adaptec EISA overlay file
- * (adp7770.ovl), the Adaptec AHA-2740 Series Technical Reference Manual,
- * the Adaptec AIC-7770 Data Book, the ANSI SCSI specification, the
- * ANSI SCSI-2 specification (draft 10c), ...
- *
- * --------------------------------------------------------------------------
- *
- * Modifications by Daniel M. Eischen (deischen@iworks.InterWorks.org):
- *
- * Substantially modified to include support for wide and twin bus
- * adapters, DMAing of SCBs, tagged queueing, IRQ sharing, bug fixes,
- * SCB paging, and other rework of the code.
- *
- * Parts of this driver were also based on the FreeBSD driver by
- * Justin T. Gibbs. His copyright follows:
- *
- * --------------------------------------------------------------------------
- * Copyright (c) 1994-1997 Justin Gibbs.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU General Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: aic7xxx.c,v 1.119 1997/06/27 19:39:18 gibbs Exp $
- *---------------------------------------------------------------------------
- *
- * Thanks also go to (in alphabetical order) the following:
- *
- * Rory Bolt - Sequencer bug fixes
- * Jay Estabrook - Initial DEC Alpha support
- * Doug Ledford - Much needed abort/reset bug fixes
- * Kai Makisara - DMAing of SCBs
- *
- * A Boot time option was also added for not resetting the scsi bus.
- *
- * Form: aic7xxx=extended
- * aic7xxx=no_reset
- * aic7xxx=ultra
- * aic7xxx=irq_trigger:[0,1] # 0 edge, 1 level
- * aic7xxx=verbose
- *
- * Daniel M. Eischen, deischen@iworks.InterWorks.org, 1/23/97
- *
- * $Id: aic7xxx.c,v 4.1 1997/06/12 08:23:42 deang Exp $
- *-M*************************************************************************/
-
-/*+M**************************************************************************
- *
- * Further driver modifications made by Doug Ledford <dledford@redhat.com>
- *
- * Copyright (c) 1997-1999 Doug Ledford
- *
- * These changes are released under the same licensing terms as the FreeBSD
- * driver written by Justin Gibbs. Please see his Copyright notice above
- * for the exact terms and conditions covering my changes as well as the
- * warranty statement.
- *
- * Modifications made to the aic7xxx.c,v 4.1 driver from Dan Eischen include
- * but are not limited to:
- *
- * 1: Import of the latest FreeBSD sequencer code for this driver
- * 2: Modification of kernel code to accommodate different sequencer semantics
- * 3: Extensive changes throughout kernel portion of driver to improve
- * abort/reset processing and error hanndling
- * 4: Other work contributed by various people on the Internet
- * 5: Changes to printk information and verbosity selection code
- * 6: General reliability related changes, especially in IRQ management
- * 7: Modifications to the default probe/attach order for supported cards
- * 8: SMP friendliness has been improved
- *
- * Overall, this driver represents a significant departure from the official
- * aic7xxx driver released by Dan Eischen in two ways. First, in the code
- * itself. A diff between the two version of the driver is now a several
- * thousand line diff. Second, in approach to solving the same problem. The
- * problem is importing the FreeBSD aic7xxx driver code to linux can be a
- * difficult and time consuming process, that also can be error prone. Dan
- * Eischen's official driver uses the approach that the linux and FreeBSD
- * drivers should be as identical as possible. To that end, his next version
- * of this driver will be using a mid-layer code library that he is developing
- * to moderate communications between the linux mid-level SCSI code and the
- * low level FreeBSD driver. He intends to be able to essentially drop the
- * FreeBSD driver into the linux kernel with only a few minor tweaks to some
- * include files and the like and get things working, making for fast easy
- * imports of the FreeBSD code into linux.
- *
- * I disagree with Dan's approach. Not that I don't think his way of doing
- * things would be nice, easy to maintain, and create a more uniform driver
- * between FreeBSD and Linux. I have no objection to those issues. My
- * disagreement is on the needed functionality. There simply are certain
- * things that are done differently in FreeBSD than linux that will cause
- * problems for this driver regardless of any middle ware Dan implements.
- * The biggest example of this at the moment is interrupt semantics. Linux
- * doesn't provide the same protection techniques as FreeBSD does, nor can
- * they be easily implemented in any middle ware code since they would truly
- * belong in the kernel proper and would effect all drivers. For the time
- * being, I see issues such as these as major stumbling blocks to the
- * reliability of code based upon such middle ware. Therefore, I choose to
- * use a different approach to importing the FreeBSD code that doesn't
- * involve any middle ware type code. My approach is to import the sequencer
- * code from FreeBSD wholesale. Then, to only make changes in the kernel
- * portion of the driver as they are needed for the new sequencer semantics.
- * In this way, the portion of the driver that speaks to the rest of the
- * linux kernel is fairly static and can be changed/modified to solve
- * any problems one might encounter without concern for the FreeBSD driver.
- *
- * Note: If time and experience should prove me wrong that the middle ware
- * code Dan writes is reliable in its operation, then I'll retract my above
- * statements. But, for those that don't know, I'm from Missouri (in the US)
- * and our state motto is "The Show-Me State". Well, before I will put
- * faith into it, you'll have to show me that it works :)
- *
- *_M*************************************************************************/
-
-/*
- * The next three defines are user configurable. These should be the only
- * defines a user might need to get in here and change. There are other
- * defines buried deeper in the code, but those really shouldn't need touched
- * under normal conditions.
- */
-
-/*
- * AIC7XXX_STRICT_PCI_SETUP
- * Should we assume the PCI config options on our controllers are set with
- * sane and proper values, or should we be anal about our PCI config
- * registers and force them to what we want? The main advantage to
- * defining this option is on non-Intel hardware where the BIOS may not
- * have been run to set things up, or if you have one of the BIOSless
- * Adaptec controllers, such as a 2910, that don't get set up by the
- * BIOS. However, keep in mind that we really do set the most important
- * items in the driver regardless of this setting, this only controls some
- * of the more esoteric PCI options on these cards. In that sense, I
- * would default to leaving this off. However, if people wish to try
- * things both ways, that would also help me to know if there are some
- * machines where it works one way but not another.
- *
- * -- July 7, 17:09
- * OK...I need this on my machine for testing, so the default is to
- * leave it defined.
- *
- * -- July 7, 18:49
- * I needed it for testing, but it didn't make any difference, so back
- * off she goes.
- *
- * -- July 16, 23:04
- * I turned it back on to try and compensate for the 2.1.x PCI code
- * which no longer relies solely on the BIOS and now tries to set
- * things itself.
- */
-
-#define AIC7XXX_STRICT_PCI_SETUP
-
-/*
- * AIC7XXX_VERBOSE_DEBUGGING
- * This option enables a lot of extra printk();s in the code, surrounded
- * by if (aic7xxx_verbose ...) statements. Executing all of those if
- * statements and the extra checks can get to where it actually does have
- * an impact on CPU usage and such, as well as code size. Disabling this
- * define will keep some of those from becoming part of the code.
- *
- * NOTE: Currently, this option has no real effect, I will be adding the
- * various #ifdef's in the code later when I've decided a section is
- * complete and no longer needs debugging. OK...a lot of things are now
- * surrounded by this define, so turning this off does have an impact.
- */
-
-/*
- * #define AIC7XXX_VERBOSE_DEBUGGING
- */
-
-#include <linux/module.h>
-#include <stdarg.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/byteorder.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/proc_fs.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "aic7xxx_old/aic7xxx.h"
-
-#include "aic7xxx_old/sequencer.h"
-#include "aic7xxx_old/scsi_message.h"
-#include "aic7xxx_old/aic7xxx_reg.h"
-#include <scsi/scsicam.h>
-
-#include <linux/stat.h>
-#include <linux/slab.h> /* for kmalloc() */
-
-#define AIC7XXX_C_VERSION "5.2.6"
-
-#define ALL_TARGETS -1
-#define ALL_CHANNELS -1
-#define ALL_LUNS -1
-#define MAX_TARGETS 16
-#define MAX_LUNS 8
-#ifndef TRUE
-# define TRUE 1
-#endif
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-#if defined(__powerpc__) || defined(__i386__) || defined(__x86_64__)
-# define MMAPIO
-#endif
-
-/*
- * You can try raising me for better performance or lowering me if you have
- * flaky devices that go off the scsi bus when hit with too many tagged
- * commands (like some IBM SCSI-3 LVD drives).
- */
-#define AIC7XXX_CMDS_PER_DEVICE 32
-
-typedef struct
-{
- unsigned char tag_commands[16]; /* Allow for wide/twin adapters. */
-} adapter_tag_info_t;
-
-/*
- * Make a define that will tell the driver not to the default tag depth
- * everywhere.
- */
-#define DEFAULT_TAG_COMMANDS {0, 0, 0, 0, 0, 0, 0, 0,\
- 0, 0, 0, 0, 0, 0, 0, 0}
-
-/*
- * Modify this as you see fit for your system. By setting tag_commands
- * to 0, the driver will use it's own algorithm for determining the
- * number of commands to use (see above). When 255, the driver will
- * not enable tagged queueing for that particular device. When positive
- * (> 0) and (< 255) the values in the array are used for the queue_depth.
- * Note that the maximum value for an entry is 254, but you're insane if
- * you try to use that many commands on one device.
- *
- * In this example, the first line will disable tagged queueing for all
- * the devices on the first probed aic7xxx adapter.
- *
- * The second line enables tagged queueing with 4 commands/LUN for IDs
- * (1, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
- * driver to use its own algorithm for ID 1.
- *
- * The third line is the same as the first line.
- *
- * The fourth line disables tagged queueing for devices 0 and 3. It
- * enables tagged queueing for the other IDs, with 16 commands/LUN
- * for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for
- * IDs 2, 5-7, and 9-15.
- */
-
-/*
- * NOTE: The below structure is for reference only, the actual structure
- * to modify in order to change things is found after this fake one.
- *
-adapter_tag_info_t aic7xxx_tag_info[] =
-{
- {DEFAULT_TAG_COMMANDS},
- {{4, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 255, 4, 4, 4}},
- {DEFAULT_TAG_COMMANDS},
- {{255, 16, 4, 255, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}}
-};
-*/
-
-static adapter_tag_info_t aic7xxx_tag_info[] =
-{
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS},
- {DEFAULT_TAG_COMMANDS}
-};
-
-
-/*
- * Define an array of board names that can be indexed by aha_type.
- * Don't forget to change this when changing the types!
- */
-static const char *board_names[] = {
- "AIC-7xxx Unknown", /* AIC_NONE */
- "Adaptec AIC-7810 Hardware RAID Controller", /* AIC_7810 */
- "Adaptec AIC-7770 SCSI host adapter", /* AIC_7770 */
- "Adaptec AHA-274X SCSI host adapter", /* AIC_7771 */
- "Adaptec AHA-284X SCSI host adapter", /* AIC_284x */
- "Adaptec AIC-7850 SCSI host adapter", /* AIC_7850 */
- "Adaptec AIC-7855 SCSI host adapter", /* AIC_7855 */
- "Adaptec AIC-7860 Ultra SCSI host adapter", /* AIC_7860 */
- "Adaptec AHA-2940A Ultra SCSI host adapter", /* AIC_7861 */
- "Adaptec AIC-7870 SCSI host adapter", /* AIC_7870 */
- "Adaptec AHA-294X SCSI host adapter", /* AIC_7871 */
- "Adaptec AHA-394X SCSI host adapter", /* AIC_7872 */
- "Adaptec AHA-398X SCSI host adapter", /* AIC_7873 */
- "Adaptec AHA-2944 SCSI host adapter", /* AIC_7874 */
- "Adaptec AIC-7880 Ultra SCSI host adapter", /* AIC_7880 */
- "Adaptec AHA-294X Ultra SCSI host adapter", /* AIC_7881 */
- "Adaptec AHA-394X Ultra SCSI host adapter", /* AIC_7882 */
- "Adaptec AHA-398X Ultra SCSI host adapter", /* AIC_7883 */
- "Adaptec AHA-2944 Ultra SCSI host adapter", /* AIC_7884 */
- "Adaptec AHA-2940UW Pro Ultra SCSI host adapter", /* AIC_7887 */
- "Adaptec AIC-7895 Ultra SCSI host adapter", /* AIC_7895 */
- "Adaptec AIC-7890/1 Ultra2 SCSI host adapter", /* AIC_7890 */
- "Adaptec AHA-293X Ultra2 SCSI host adapter", /* AIC_7890 */
- "Adaptec AHA-294X Ultra2 SCSI host adapter", /* AIC_7890 */
- "Adaptec AIC-7896/7 Ultra2 SCSI host adapter", /* AIC_7896 */
- "Adaptec AHA-394X Ultra2 SCSI host adapter", /* AIC_7897 */
- "Adaptec AHA-395X Ultra2 SCSI host adapter", /* AIC_7897 */
- "Adaptec PCMCIA SCSI controller", /* card bus stuff */
- "Adaptec AIC-7892 Ultra 160/m SCSI host adapter", /* AIC_7892 */
- "Adaptec AIC-7899 Ultra 160/m SCSI host adapter", /* AIC_7899 */
-};
-
-/*
- * There should be a specific return value for this in scsi.h, but
- * it seems that most drivers ignore it.
- */
-#define DID_UNDERFLOW DID_ERROR
-
-/*
- * What we want to do is have the higher level scsi driver requeue
- * the command to us. There is no specific driver status for this
- * condition, but the higher level scsi driver will requeue the
- * command on a DID_BUS_BUSY error.
- *
- * Upon further inspection and testing, it seems that DID_BUS_BUSY
- * will *always* retry the command. We can get into an infinite loop
- * if this happens when we really want some sort of counter that
- * will automatically abort/reset the command after so many retries.
- * Using DID_ERROR will do just that. (Made by a suggestion by
- * Doug Ledford 8/1/96)
- */
-#define DID_RETRY_COMMAND DID_ERROR
-
-#define HSCSIID 0x07
-#define SCSI_RESET 0x040
-
-/*
- * EISA/VL-bus stuff
- */
-#define MINSLOT 1
-#define MAXSLOT 15
-#define SLOTBASE(x) ((x) << 12)
-#define BASE_TO_SLOT(x) ((x) >> 12)
-
-/*
- * Standard EISA Host ID regs (Offset from slot base)
- */
-#define AHC_HID0 0x80 /* 0,1: msb of ID2, 2-7: ID1 */
-#define AHC_HID1 0x81 /* 0-4: ID3, 5-7: LSB ID2 */
-#define AHC_HID2 0x82 /* product */
-#define AHC_HID3 0x83 /* firmware revision */
-
-/*
- * AIC-7770 I/O range to reserve for a card
- */
-#define MINREG 0xC00
-#define MAXREG 0xCFF
-
-#define INTDEF 0x5C /* Interrupt Definition Register */
-
-/*
- * AIC-78X0 PCI registers
- */
-#define CLASS_PROGIF_REVID 0x08
-#define DEVREVID 0x000000FFul
-#define PROGINFC 0x0000FF00ul
-#define SUBCLASS 0x00FF0000ul
-#define BASECLASS 0xFF000000ul
-
-#define CSIZE_LATTIME 0x0C
-#define CACHESIZE 0x0000003Ful /* only 5 bits */
-#define LATTIME 0x0000FF00ul
-
-#define DEVCONFIG 0x40
-#define SCBSIZE32 0x00010000ul /* aic789X only */
-#define MPORTMODE 0x00000400ul /* aic7870 only */
-#define RAMPSM 0x00000200ul /* aic7870 only */
-#define RAMPSM_ULTRA2 0x00000004
-#define VOLSENSE 0x00000100ul
-#define SCBRAMSEL 0x00000080ul
-#define SCBRAMSEL_ULTRA2 0x00000008
-#define MRDCEN 0x00000040ul
-#define EXTSCBTIME 0x00000020ul /* aic7870 only */
-#define EXTSCBPEN 0x00000010ul /* aic7870 only */
-#define BERREN 0x00000008ul
-#define DACEN 0x00000004ul
-#define STPWLEVEL 0x00000002ul
-#define DIFACTNEGEN 0x00000001ul /* aic7870 only */
-
-#define SCAMCTL 0x1a /* Ultra2 only */
-#define CCSCBBADDR 0xf0 /* aic7895/6/7 */
-
-/*
- * Define the different types of SEEPROMs on aic7xxx adapters
- * and make it also represent the address size used in accessing
- * its registers. The 93C46 chips have 1024 bits organized into
- * 64 16-bit words, while the 93C56 chips have 2048 bits organized
- * into 128 16-bit words. The C46 chips use 6 bits to address
- * each word, while the C56 and C66 (4096 bits) use 8 bits to
- * address each word.
- */
-typedef enum {C46 = 6, C56_66 = 8} seeprom_chip_type;
-
-/*
- *
- * Define the format of the SEEPROM registers (16 bits).
- *
- */
-struct seeprom_config {
-
-/*
- * SCSI ID Configuration Flags
- */
-#define CFXFER 0x0007 /* synchronous transfer rate */
-#define CFSYNCH 0x0008 /* enable synchronous transfer */
-#define CFDISC 0x0010 /* enable disconnection */
-#define CFWIDEB 0x0020 /* wide bus device (wide card) */
-#define CFSYNCHISULTRA 0x0040 /* CFSYNC is an ultra offset */
-#define CFNEWULTRAFORMAT 0x0080 /* Use the Ultra2 SEEPROM format */
-#define CFSTART 0x0100 /* send start unit SCSI command */
-#define CFINCBIOS 0x0200 /* include in BIOS scan */
-#define CFRNFOUND 0x0400 /* report even if not found */
-#define CFMULTILUN 0x0800 /* probe mult luns in BIOS scan */
-#define CFWBCACHEYES 0x4000 /* Enable W-Behind Cache on drive */
-#define CFWBCACHENC 0xc000 /* Don't change W-Behind Cache */
-/* UNUSED 0x3000 */
- unsigned short device_flags[16]; /* words 0-15 */
-
-/*
- * BIOS Control Bits
- */
-#define CFSUPREM 0x0001 /* support all removable drives */
-#define CFSUPREMB 0x0002 /* support removable drives for boot only */
-#define CFBIOSEN 0x0004 /* BIOS enabled */
-/* UNUSED 0x0008 */
-#define CFSM2DRV 0x0010 /* support more than two drives */
-#define CF284XEXTEND 0x0020 /* extended translation (284x cards) */
-/* UNUSED 0x0040 */
-#define CFEXTEND 0x0080 /* extended translation enabled */
-/* UNUSED 0xFF00 */
- unsigned short bios_control; /* word 16 */
-
-/*
- * Host Adapter Control Bits
- */
-#define CFAUTOTERM 0x0001 /* Perform Auto termination */
-#define CFULTRAEN 0x0002 /* Ultra SCSI speed enable (Ultra cards) */
-#define CF284XSELTO 0x0003 /* Selection timeout (284x cards) */
-#define CF284XFIFO 0x000C /* FIFO Threshold (284x cards) */
-#define CFSTERM 0x0004 /* SCSI low byte termination */
-#define CFWSTERM 0x0008 /* SCSI high byte termination (wide card) */
-#define CFSPARITY 0x0010 /* SCSI parity */
-#define CF284XSTERM 0x0020 /* SCSI low byte termination (284x cards) */
-#define CFRESETB 0x0040 /* reset SCSI bus at boot */
-#define CFBPRIMARY 0x0100 /* Channel B primary on 7895 chipsets */
-#define CFSEAUTOTERM 0x0400 /* aic7890 Perform SE Auto Term */
-#define CFLVDSTERM 0x0800 /* aic7890 LVD Termination */
-/* UNUSED 0xF280 */
- unsigned short adapter_control; /* word 17 */
-
-/*
- * Bus Release, Host Adapter ID
- */
-#define CFSCSIID 0x000F /* host adapter SCSI ID */
-/* UNUSED 0x00F0 */
-#define CFBRTIME 0xFF00 /* bus release time */
- unsigned short brtime_id; /* word 18 */
-
-/*
- * Maximum targets
- */
-#define CFMAXTARG 0x00FF /* maximum targets */
-/* UNUSED 0xFF00 */
- unsigned short max_targets; /* word 19 */
-
- unsigned short res_1[11]; /* words 20-30 */
- unsigned short checksum; /* word 31 */
-};
-
-#define SELBUS_MASK 0x0a
-#define SELNARROW 0x00
-#define SELBUSB 0x08
-#define SINGLE_BUS 0x00
-
-#define SCB_TARGET(scb) \
- (((scb)->hscb->target_channel_lun & TID) >> 4)
-#define SCB_LUN(scb) \
- ((scb)->hscb->target_channel_lun & LID)
-#define SCB_IS_SCSIBUS_B(scb) \
- (((scb)->hscb->target_channel_lun & SELBUSB) != 0)
-
-/*
- * If an error occurs during a data transfer phase, run the command
- * to completion - it's easier that way - making a note of the error
- * condition in this location. This then will modify a DID_OK status
- * into an appropriate error for the higher-level SCSI code.
- */
-#define aic7xxx_error(cmd) ((cmd)->SCp.Status)
-
-/*
- * Keep track of the targets returned status.
- */
-#define aic7xxx_status(cmd) ((cmd)->SCp.sent_command)
-
-/*
- * The position of the SCSI commands scb within the scb array.
- */
-#define aic7xxx_position(cmd) ((cmd)->SCp.have_data_in)
-
-/*
- * The stored DMA mapping for single-buffer data transfers.
- */
-#define aic7xxx_mapping(cmd) ((cmd)->SCp.phase)
-
-/*
- * Get out private data area from a scsi cmd pointer
- */
-#define AIC_DEV(cmd) ((struct aic_dev_data *)(cmd)->device->hostdata)
-
-/*
- * So we can keep track of our host structs
- */
-static struct aic7xxx_host *first_aic7xxx = NULL;
-
-/*
- * As of Linux 2.1, the mid-level SCSI code uses virtual addresses
- * in the scatter-gather lists. We need to convert the virtual
- * addresses to physical addresses.
- */
-struct hw_scatterlist {
- unsigned int address;
- unsigned int length;
-};
-
-/*
- * Maximum number of SG segments these cards can support.
- */
-#define AIC7XXX_MAX_SG 128
-
-/*
- * The maximum number of SCBs we could have for ANY type
- * of card. DON'T FORGET TO CHANGE THE SCB MASK IN THE
- * SEQUENCER CODE IF THIS IS MODIFIED!
- */
-#define AIC7XXX_MAXSCB 255
-
-
-struct aic7xxx_hwscb {
-/* ------------ Begin hardware supported fields ---------------- */
-/* 0*/ unsigned char control;
-/* 1*/ unsigned char target_channel_lun; /* 4/1/3 bits */
-/* 2*/ unsigned char target_status;
-/* 3*/ unsigned char SG_segment_count;
-/* 4*/ unsigned int SG_list_pointer;
-/* 8*/ unsigned char residual_SG_segment_count;
-/* 9*/ unsigned char residual_data_count[3];
-/*12*/ unsigned int data_pointer;
-/*16*/ unsigned int data_count;
-/*20*/ unsigned int SCSI_cmd_pointer;
-/*24*/ unsigned char SCSI_cmd_length;
-/*25*/ unsigned char tag; /* Index into our kernel SCB array.
- * Also used as the tag for tagged I/O
- */
-#define SCB_PIO_TRANSFER_SIZE 26 /* amount we need to upload/download
- * via PIO to initialize a transaction.
- */
-/*26*/ unsigned char next; /* Used to thread SCBs awaiting selection
- * or disconnected down in the sequencer.
- */
-/*27*/ unsigned char prev;
-/*28*/ unsigned int pad; /*
- * Unused by the kernel, but we require
- * the padding so that the array of
- * hardware SCBs is aligned on 32 byte
- * boundaries so the sequencer can index
- */
-};
-
-typedef enum {
- SCB_FREE = 0x0000,
- SCB_DTR_SCB = 0x0001,
- SCB_WAITINGQ = 0x0002,
- SCB_ACTIVE = 0x0004,
- SCB_SENSE = 0x0008,
- SCB_ABORT = 0x0010,
- SCB_DEVICE_RESET = 0x0020,
- SCB_RESET = 0x0040,
- SCB_RECOVERY_SCB = 0x0080,
- SCB_MSGOUT_PPR = 0x0100,
- SCB_MSGOUT_SENT = 0x0200,
- SCB_MSGOUT_SDTR = 0x0400,
- SCB_MSGOUT_WDTR = 0x0800,
- SCB_MSGOUT_BITS = SCB_MSGOUT_PPR |
- SCB_MSGOUT_SENT |
- SCB_MSGOUT_SDTR |
- SCB_MSGOUT_WDTR,
- SCB_QUEUED_ABORT = 0x1000,
- SCB_QUEUED_FOR_DONE = 0x2000,
- SCB_WAS_BUSY = 0x4000,
- SCB_QUEUE_FULL = 0x8000
-} scb_flag_type;
-
-typedef enum {
- AHC_FNONE = 0x00000000,
- AHC_PAGESCBS = 0x00000001,
- AHC_CHANNEL_B_PRIMARY = 0x00000002,
- AHC_USEDEFAULTS = 0x00000004,
- AHC_INDIRECT_PAGING = 0x00000008,
- AHC_CHNLB = 0x00000020,
- AHC_CHNLC = 0x00000040,
- AHC_EXTEND_TRANS_A = 0x00000100,
- AHC_EXTEND_TRANS_B = 0x00000200,
- AHC_TERM_ENB_A = 0x00000400,
- AHC_TERM_ENB_SE_LOW = 0x00000400,
- AHC_TERM_ENB_B = 0x00000800,
- AHC_TERM_ENB_SE_HIGH = 0x00000800,
- AHC_HANDLING_REQINITS = 0x00001000,
- AHC_TARGETMODE = 0x00002000,
- AHC_NEWEEPROM_FMT = 0x00004000,
- /*
- * Here ends the FreeBSD defined flags and here begins the linux defined
- * flags. NOTE: I did not preserve the old flag name during this change
- * specifically to force me to evaluate what flags were being used properly
- * and what flags weren't. This way, I could clean up the flag usage on
- * a use by use basis. Doug Ledford
- */
- AHC_MOTHERBOARD = 0x00020000,
- AHC_NO_STPWEN = 0x00040000,
- AHC_RESET_DELAY = 0x00080000,
- AHC_A_SCANNED = 0x00100000,
- AHC_B_SCANNED = 0x00200000,
- AHC_MULTI_CHANNEL = 0x00400000,
- AHC_BIOS_ENABLED = 0x00800000,
- AHC_SEEPROM_FOUND = 0x01000000,
- AHC_TERM_ENB_LVD = 0x02000000,
- AHC_ABORT_PENDING = 0x04000000,
- AHC_RESET_PENDING = 0x08000000,
-#define AHC_IN_ISR_BIT 28
- AHC_IN_ISR = 0x10000000,
- AHC_IN_ABORT = 0x20000000,
- AHC_IN_RESET = 0x40000000,
- AHC_EXTERNAL_SRAM = 0x80000000
-} ahc_flag_type;
-
-typedef enum {
- AHC_NONE = 0x0000,
- AHC_CHIPID_MASK = 0x00ff,
- AHC_AIC7770 = 0x0001,
- AHC_AIC7850 = 0x0002,
- AHC_AIC7860 = 0x0003,
- AHC_AIC7870 = 0x0004,
- AHC_AIC7880 = 0x0005,
- AHC_AIC7890 = 0x0006,
- AHC_AIC7895 = 0x0007,
- AHC_AIC7896 = 0x0008,
- AHC_AIC7892 = 0x0009,
- AHC_AIC7899 = 0x000a,
- AHC_VL = 0x0100,
- AHC_EISA = 0x0200,
- AHC_PCI = 0x0400,
-} ahc_chip;
-
-typedef enum {
- AHC_FENONE = 0x0000,
- AHC_ULTRA = 0x0001,
- AHC_ULTRA2 = 0x0002,
- AHC_WIDE = 0x0004,
- AHC_TWIN = 0x0008,
- AHC_MORE_SRAM = 0x0010,
- AHC_CMD_CHAN = 0x0020,
- AHC_QUEUE_REGS = 0x0040,
- AHC_SG_PRELOAD = 0x0080,
- AHC_SPIOCAP = 0x0100,
- AHC_ULTRA3 = 0x0200,
- AHC_NEW_AUTOTERM = 0x0400,
- AHC_AIC7770_FE = AHC_FENONE,
- AHC_AIC7850_FE = AHC_SPIOCAP,
- AHC_AIC7860_FE = AHC_ULTRA|AHC_SPIOCAP,
- AHC_AIC7870_FE = AHC_FENONE,
- AHC_AIC7880_FE = AHC_ULTRA,
- AHC_AIC7890_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA2|
- AHC_QUEUE_REGS|AHC_SG_PRELOAD|AHC_NEW_AUTOTERM,
- AHC_AIC7895_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA,
- AHC_AIC7896_FE = AHC_AIC7890_FE,
- AHC_AIC7892_FE = AHC_AIC7890_FE|AHC_ULTRA3,
- AHC_AIC7899_FE = AHC_AIC7890_FE|AHC_ULTRA3,
-} ahc_feature;
-
-#define SCB_DMA_ADDR(scb, addr) ((unsigned long)(addr) + (scb)->scb_dma->dma_offset)
-
-struct aic7xxx_scb_dma {
- unsigned long dma_offset; /* Correction you have to add
- * to virtual address to get
- * dma handle in this region */
- dma_addr_t dma_address; /* DMA handle of the start,
- * for unmap */
- unsigned int dma_len; /* DMA length */
-};
-
-typedef enum {
- AHC_BUG_NONE = 0x0000,
- AHC_BUG_TMODE_WIDEODD = 0x0001,
- AHC_BUG_AUTOFLUSH = 0x0002,
- AHC_BUG_CACHETHEN = 0x0004,
- AHC_BUG_CACHETHEN_DIS = 0x0008,
- AHC_BUG_PCI_2_1_RETRY = 0x0010,
- AHC_BUG_PCI_MWI = 0x0020,
- AHC_BUG_SCBCHAN_UPLOAD = 0x0040,
-} ahc_bugs;
-
-struct aic7xxx_scb {
- struct aic7xxx_hwscb *hscb; /* corresponding hardware scb */
- struct scsi_cmnd *cmd; /* scsi_cmnd for this scb */
- struct aic7xxx_scb *q_next; /* next scb in queue */
- volatile scb_flag_type flags; /* current state of scb */
- struct hw_scatterlist *sg_list; /* SG list in adapter format */
- unsigned char tag_action;
- unsigned char sg_count;
- unsigned char *sense_cmd; /*
- * Allocate 6 characters for
- * sense command.
- */
- unsigned char *cmnd;
- unsigned int sg_length; /*
- * We init this during
- * buildscb so we don't have
- * to calculate anything during
- * underflow/overflow/stat code
- */
- void *kmalloc_ptr;
- struct aic7xxx_scb_dma *scb_dma;
-};
-
-/*
- * Define a linked list of SCBs.
- */
-typedef struct {
- struct aic7xxx_scb *head;
- struct aic7xxx_scb *tail;
-} scb_queue_type;
-
-static struct {
- unsigned char errno;
- const char *errmesg;
-} hard_error[] = {
- { ILLHADDR, "Illegal Host Access" },
- { ILLSADDR, "Illegal Sequencer Address referenced" },
- { ILLOPCODE, "Illegal Opcode in sequencer program" },
- { SQPARERR, "Sequencer Ram Parity Error" },
- { DPARERR, "Data-Path Ram Parity Error" },
- { MPARERR, "Scratch Ram/SCB Array Ram Parity Error" },
- { PCIERRSTAT,"PCI Error detected" },
- { CIOPARERR, "CIOBUS Parity Error" }
-};
-
-static unsigned char
-generic_sense[] = { REQUEST_SENSE, 0, 0, 0, 255, 0 };
-
-typedef struct {
- scb_queue_type free_scbs; /*
- * SCBs assigned to free slot on
- * card (no paging required)
- */
- struct aic7xxx_scb *scb_array[AIC7XXX_MAXSCB];
- struct aic7xxx_hwscb *hscbs;
- unsigned char numscbs; /* current number of scbs */
- unsigned char maxhscbs; /* hardware scbs */
- unsigned char maxscbs; /* max scbs including pageable scbs */
- dma_addr_t hscbs_dma; /* DMA handle to hscbs */
- unsigned int hscbs_dma_len; /* length of the above DMA area */
- void *hscb_kmalloc_ptr;
-} scb_data_type;
-
-struct target_cmd {
- unsigned char mesg_bytes[4];
- unsigned char command[28];
-};
-
-#define AHC_TRANS_CUR 0x0001
-#define AHC_TRANS_ACTIVE 0x0002
-#define AHC_TRANS_GOAL 0x0004
-#define AHC_TRANS_USER 0x0008
-#define AHC_TRANS_QUITE 0x0010
-typedef struct {
- unsigned char width;
- unsigned char period;
- unsigned char offset;
- unsigned char options;
-} transinfo_type;
-
-struct aic_dev_data {
- volatile scb_queue_type delayed_scbs;
- volatile unsigned short temp_q_depth;
- unsigned short max_q_depth;
- volatile unsigned char active_cmds;
- /*
- * Statistics Kept:
- *
- * Total Xfers (count for each command that has a data xfer),
- * broken down by reads && writes.
- *
- * Further sorted into a few bins for keeping tabs on how many commands
- * we get of various sizes.
- *
- */
- long w_total; /* total writes */
- long r_total; /* total reads */
- long barrier_total; /* total num of REQ_BARRIER commands */
- long ordered_total; /* How many REQ_BARRIER commands we
- used ordered tags to satisfy */
- long w_bins[6]; /* binned write */
- long r_bins[6]; /* binned reads */
- transinfo_type cur;
- transinfo_type goal;
-#define BUS_DEVICE_RESET_PENDING 0x01
-#define DEVICE_RESET_DELAY 0x02
-#define DEVICE_PRINT_DTR 0x04
-#define DEVICE_WAS_BUSY 0x08
-#define DEVICE_DTR_SCANNED 0x10
-#define DEVICE_SCSI_3 0x20
- volatile unsigned char flags;
- unsigned needppr:1;
- unsigned needppr_copy:1;
- unsigned needsdtr:1;
- unsigned needsdtr_copy:1;
- unsigned needwdtr:1;
- unsigned needwdtr_copy:1;
- unsigned dtr_pending:1;
- struct scsi_device *SDptr;
- struct list_head list;
-};
-
-/*
- * Define a structure used for each host adapter. Note, in order to avoid
- * problems with architectures I can't test on (because I don't have one,
- * such as the Alpha based systems) which happen to give faults for
- * non-aligned memory accesses, care was taken to align this structure
- * in a way that guaranteed all accesses larger than 8 bits were aligned
- * on the appropriate boundary. It's also organized to try and be more
- * cache line efficient. Be careful when changing this lest you might hurt
- * overall performance and bring down the wrath of the masses.
- */
-struct aic7xxx_host {
- /*
- * This is the first 64 bytes in the host struct
- */
-
- /*
- * We are grouping things here....first, items that get either read or
- * written with nearly every interrupt
- */
- volatile long flags;
- ahc_feature features; /* chip features */
- unsigned long base; /* card base address */
- volatile unsigned char __iomem *maddr; /* memory mapped address */
- unsigned long isr_count; /* Interrupt count */
- unsigned long spurious_int;
- scb_data_type *scb_data;
- struct aic7xxx_cmd_queue {
- struct scsi_cmnd *head;
- struct scsi_cmnd *tail;
- } completeq;
-
- /*
- * Things read/written on nearly every entry into aic7xxx_queue()
- */
- volatile scb_queue_type waiting_scbs;
- unsigned char unpause; /* unpause value for HCNTRL */
- unsigned char pause; /* pause value for HCNTRL */
- volatile unsigned char qoutfifonext;
- volatile unsigned char activescbs; /* active scbs */
- volatile unsigned char max_activescbs;
- volatile unsigned char qinfifonext;
- volatile unsigned char *untagged_scbs;
- volatile unsigned char *qoutfifo;
- volatile unsigned char *qinfifo;
-
- unsigned char dev_last_queue_full[MAX_TARGETS];
- unsigned char dev_last_queue_full_count[MAX_TARGETS];
- unsigned short ultraenb; /* Gets downloaded to card as a bitmap */
- unsigned short discenable; /* Gets downloaded to card as a bitmap */
- transinfo_type user[MAX_TARGETS];
-
- unsigned char msg_buf[13]; /* The message for the target */
- unsigned char msg_type;
-#define MSG_TYPE_NONE 0x00
-#define MSG_TYPE_INITIATOR_MSGOUT 0x01
-#define MSG_TYPE_INITIATOR_MSGIN 0x02
- unsigned char msg_len; /* Length of message */
- unsigned char msg_index; /* Index into msg_buf array */
-
-
- /*
- * We put the less frequently used host structure items
- * after the more frequently used items to try and ease
- * the burden on the cache subsystem.
- * These entries are not *commonly* accessed, whereas
- * the preceding entries are accessed very often.
- */
-
- unsigned int irq; /* IRQ for this adapter */
- int instance; /* aic7xxx instance number */
- int scsi_id; /* host adapter SCSI ID */
- int scsi_id_b; /* channel B for twin adapters */
- unsigned int bios_address;
- int board_name_index;
- unsigned short bios_control; /* bios control - SEEPROM */
- unsigned short adapter_control; /* adapter control - SEEPROM */
- struct pci_dev *pdev;
- unsigned char pci_bus;
- unsigned char pci_device_fn;
- struct seeprom_config sc;
- unsigned short sc_type;
- unsigned short sc_size;
- struct aic7xxx_host *next; /* allow for multiple IRQs */
- struct Scsi_Host *host; /* pointer to scsi host */
- struct list_head aic_devs; /* all aic_dev structs on host */
- int host_no; /* SCSI host number */
- unsigned long mbase; /* I/O memory address */
- ahc_chip chip; /* chip type */
- ahc_bugs bugs;
- dma_addr_t fifo_dma; /* DMA handle for fifo arrays */
-};
-
-/*
- * Valid SCSIRATE values. (p. 3-17)
- * Provides a mapping of transfer periods in ns/4 to the proper value to
- * stick in the SCSIRATE reg to use that transfer rate.
- */
-#define AHC_SYNCRATE_ULTRA3 0
-#define AHC_SYNCRATE_ULTRA2 1
-#define AHC_SYNCRATE_ULTRA 3
-#define AHC_SYNCRATE_FAST 6
-#define AHC_SYNCRATE_CRC 0x40
-#define AHC_SYNCRATE_SE 0x10
-static struct aic7xxx_syncrate {
- /* Rates in Ultra mode have bit 8 of sxfr set */
-#define ULTRA_SXFR 0x100
- int sxfr_ultra2;
- int sxfr;
- unsigned char period;
- const char *rate[2];
-} aic7xxx_syncrates[] = {
- { 0x42, 0x000, 9, {"80.0", "160.0"} },
- { 0x13, 0x000, 10, {"40.0", "80.0"} },
- { 0x14, 0x000, 11, {"33.0", "66.6"} },
- { 0x15, 0x100, 12, {"20.0", "40.0"} },
- { 0x16, 0x110, 15, {"16.0", "32.0"} },
- { 0x17, 0x120, 18, {"13.4", "26.8"} },
- { 0x18, 0x000, 25, {"10.0", "20.0"} },
- { 0x19, 0x010, 31, {"8.0", "16.0"} },
- { 0x1a, 0x020, 37, {"6.67", "13.3"} },
- { 0x1b, 0x030, 43, {"5.7", "11.4"} },
- { 0x10, 0x040, 50, {"5.0", "10.0"} },
- { 0x00, 0x050, 56, {"4.4", "8.8" } },
- { 0x00, 0x060, 62, {"4.0", "8.0" } },
- { 0x00, 0x070, 68, {"3.6", "7.2" } },
- { 0x00, 0x000, 0, {NULL, NULL} },
-};
-
-#define CTL_OF_SCB(scb) (((scb->hscb)->target_channel_lun >> 3) & 0x1), \
- (((scb->hscb)->target_channel_lun >> 4) & 0xf), \
- ((scb->hscb)->target_channel_lun & 0x07)
-
-#define CTL_OF_CMD(cmd) ((cmd->device->channel) & 0x01), \
- ((cmd->device->id) & 0x0f), \
- ((cmd->device->lun) & 0x07)
-
-#define TARGET_INDEX(cmd) ((cmd)->device->id | ((cmd)->device->channel << 3))
-
-/*
- * A nice little define to make doing our printks a little easier
- */
-
-#define WARN_LEAD KERN_WARNING "(scsi%d:%d:%d:%d) "
-#define INFO_LEAD KERN_INFO "(scsi%d:%d:%d:%d) "
-
-/*
- * XXX - these options apply unilaterally to _all_ 274x/284x/294x
- * cards in the system. This should be fixed. Exceptions to this
- * rule are noted in the comments.
- */
-
-/*
- * Use this as the default queue depth when setting tagged queueing on.
- */
-static unsigned int aic7xxx_default_queue_depth = AIC7XXX_CMDS_PER_DEVICE;
-
-/*
- * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
- * has no effect on any later resets that might occur due to things like
- * SCSI bus timeouts.
- */
-static unsigned int aic7xxx_no_reset = 0;
-/*
- * Certain PCI motherboards will scan PCI devices from highest to lowest,
- * others scan from lowest to highest, and they tend to do all kinds of
- * strange things when they come into contact with PCI bridge chips. The
- * net result of all this is that the PCI card that is actually used to boot
- * the machine is very hard to detect. Most motherboards go from lowest
- * PCI slot number to highest, and the first SCSI controller found is the
- * one you boot from. The only exceptions to this are when a controller
- * has its BIOS disabled. So, we by default sort all of our SCSI controllers
- * from lowest PCI slot number to highest PCI slot number. We also force
- * all controllers with their BIOS disabled to the end of the list. This
- * works on *almost* all computers. Where it doesn't work, we have this
- * option. Setting this option to non-0 will reverse the order of the sort
- * to highest first, then lowest, but will still leave cards with their BIOS
- * disabled at the very end. That should fix everyone up unless there are
- * really strange cirumstances.
- */
-static int aic7xxx_reverse_scan = 0;
-/*
- * Should we force EXTENDED translation on a controller.
- * 0 == Use whatever is in the SEEPROM or default to off
- * 1 == Use whatever is in the SEEPROM or default to on
- */
-static unsigned int aic7xxx_extended = 0;
-/*
- * The IRQ trigger method used on EISA controllers. Does not effect PCI cards.
- * -1 = Use detected settings.
- * 0 = Force Edge triggered mode.
- * 1 = Force Level triggered mode.
- */
-static int aic7xxx_irq_trigger = -1;
-/*
- * This variable is used to override the termination settings on a controller.
- * This should not be used under normal conditions. However, in the case
- * that a controller does not have a readable SEEPROM (so that we can't
- * read the SEEPROM settings directly) and that a controller has a buggered
- * version of the cable detection logic, this can be used to force the
- * correct termination. It is preferable to use the manual termination
- * settings in the BIOS if possible, but some motherboard controllers store
- * those settings in a format we can't read. In other cases, auto term
- * should also work, but the chipset was put together with no auto term
- * logic (common on motherboard controllers). In those cases, we have
- * 32 bits here to work with. That's good for 8 controllers/channels. The
- * bits are organized as 4 bits per channel, with scsi0 getting the lowest
- * 4 bits in the int. A 1 in a bit position indicates the termination setting
- * that corresponds to that bit should be enabled, a 0 is disabled.
- * It looks something like this:
- *
- * 0x0f = 1111-Single Ended Low Byte Termination on/off
- * ||\-Single Ended High Byte Termination on/off
- * |\-LVD Low Byte Termination on/off
- * \-LVD High Byte Termination on/off
- *
- * For non-Ultra2 controllers, the upper 2 bits are not important. So, to
- * enable both high byte and low byte termination on scsi0, I would need to
- * make sure that the override_term variable was set to 0x03 (bits 0011).
- * To make sure that all termination is enabled on an Ultra2 controller at
- * scsi2 and only high byte termination on scsi1 and high and low byte
- * termination on scsi0, I would set override_term=0xf23 (bits 1111 0010 0011)
- *
- * For the most part, users should never have to use this, that's why I
- * left it fairly cryptic instead of easy to understand. If you need it,
- * most likely someone will be telling you what your's needs to be set to.
- */
-static int aic7xxx_override_term = -1;
-/*
- * Certain motherboard chipset controllers tend to screw
- * up the polarity of the term enable output pin. Use this variable
- * to force the correct polarity for your system. This is a bitfield variable
- * similar to the previous one, but this one has one bit per channel instead
- * of four.
- * 0 = Force the setting to active low.
- * 1 = Force setting to active high.
- * Most Adaptec cards are active high, several motherboards are active low.
- * To force a 2940 card at SCSI 0 to active high and a motherboard 7895
- * controller at scsi1 and scsi2 to active low, and a 2910 card at scsi3
- * to active high, you would need to set stpwlev=0x9 (bits 1001).
- *
- * People shouldn't need to use this, but if you are experiencing lots of
- * SCSI timeout problems, this may help. There is one sure way to test what
- * this option needs to be. Using a boot floppy to boot the system, configure
- * your system to enable all SCSI termination (in the Adaptec SCSI BIOS) and
- * if needed then also pass a value to override_term to make sure that the
- * driver is enabling SCSI termination, then set this variable to either 0
- * or 1. When the driver boots, make sure there are *NO* SCSI cables
- * connected to your controller. If it finds and inits the controller
- * without problem, then the setting you passed to stpwlev was correct. If
- * the driver goes into a reset loop and hangs the system, then you need the
- * other setting for this variable. If neither setting lets the machine
- * boot then you have definite termination problems that may not be fixable.
- */
-static int aic7xxx_stpwlev = -1;
-/*
- * Set this to non-0 in order to force the driver to panic the kernel
- * and print out debugging info on a SCSI abort or reset cycle.
- */
-static int aic7xxx_panic_on_abort = 0;
-/*
- * PCI bus parity checking of the Adaptec controllers. This is somewhat
- * dubious at best. To my knowledge, this option has never actually
- * solved a PCI parity problem, but on certain machines with broken PCI
- * chipset configurations, it can generate tons of false error messages.
- * It's included in the driver for completeness.
- * 0 = Shut off PCI parity check
- * -1 = Normal polarity pci parity checking
- * 1 = reverse polarity pci parity checking
- *
- * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this
- * variable to -1 you would actually want to simply pass the variable
- * name without a number. That will invert the 0 which will result in
- * -1.
- */
-static int aic7xxx_pci_parity = 0;
-/*
- * Set this to any non-0 value to cause us to dump the contents of all
- * the card's registers in a hex dump format tailored to each model of
- * controller.
- *
- * NOTE: THE CONTROLLER IS LEFT IN AN UNUSABLE STATE BY THIS OPTION.
- * YOU CANNOT BOOT UP WITH THIS OPTION, IT IS FOR DEBUGGING PURPOSES
- * ONLY
- */
-static int aic7xxx_dump_card = 0;
-/*
- * Set this to a non-0 value to make us dump out the 32 bit instruction
- * registers on the card after completing the sequencer download. This
- * allows the actual sequencer download to be verified. It is possible
- * to use this option and still boot up and run your system. This is
- * only intended for debugging purposes.
- */
-static int aic7xxx_dump_sequencer = 0;
-/*
- * Certain newer motherboards have put new PCI based devices into the
- * IO spaces that used to typically be occupied by VLB or EISA cards.
- * This overlap can cause these newer motherboards to lock up when scanned
- * for older EISA and VLB devices. Setting this option to non-0 will
- * cause the driver to skip scanning for any VLB or EISA controllers and
- * only support the PCI controllers. NOTE: this means that if the kernel
- * os compiled with PCI support disabled, then setting this to non-0
- * would result in never finding any devices :)
- */
-static int aic7xxx_no_probe = 0;
-/*
- * On some machines, enabling the external SCB RAM isn't reliable yet. I
- * haven't had time to make test patches for things like changing the
- * timing mode on that external RAM either. Some of those changes may
- * fix the problem. Until then though, we default to external SCB RAM
- * off and give a command line option to enable it.
- */
-static int aic7xxx_scbram = 0;
-/*
- * So that we can set how long each device is given as a selection timeout.
- * The table of values goes like this:
- * 0 - 256ms
- * 1 - 128ms
- * 2 - 64ms
- * 3 - 32ms
- * We default to 64ms because it's fast. Some old SCSI-I devices need a
- * longer time. The final value has to be left shifted by 3, hence 0x10
- * is the final value.
- */
-static int aic7xxx_seltime = 0x10;
-/*
- * So that insmod can find the variable and make it point to something
- */
-#ifdef MODULE
-static char * aic7xxx = NULL;
-module_param(aic7xxx, charp, 0);
-#endif
-
-#define VERBOSE_NORMAL 0x0000
-#define VERBOSE_NEGOTIATION 0x0001
-#define VERBOSE_SEQINT 0x0002
-#define VERBOSE_SCSIINT 0x0004
-#define VERBOSE_PROBE 0x0008
-#define VERBOSE_PROBE2 0x0010
-#define VERBOSE_NEGOTIATION2 0x0020
-#define VERBOSE_MINOR_ERROR 0x0040
-#define VERBOSE_TRACING 0x0080
-#define VERBOSE_ABORT 0x0f00
-#define VERBOSE_ABORT_MID 0x0100
-#define VERBOSE_ABORT_FIND 0x0200
-#define VERBOSE_ABORT_PROCESS 0x0400
-#define VERBOSE_ABORT_RETURN 0x0800
-#define VERBOSE_RESET 0xf000
-#define VERBOSE_RESET_MID 0x1000
-#define VERBOSE_RESET_FIND 0x2000
-#define VERBOSE_RESET_PROCESS 0x4000
-#define VERBOSE_RESET_RETURN 0x8000
-static int aic7xxx_verbose = VERBOSE_NORMAL | VERBOSE_NEGOTIATION |
- VERBOSE_PROBE; /* verbose messages */
-
-
-/****************************************************************************
- *
- * We're going to start putting in function declarations so that order of
- * functions is no longer important. As needed, they are added here.
- *
- ***************************************************************************/
-
-static int aic7xxx_release(struct Scsi_Host *host);
-static void aic7xxx_set_syncrate(struct aic7xxx_host *p,
- struct aic7xxx_syncrate *syncrate, int target, int channel,
- unsigned int period, unsigned int offset, unsigned char options,
- unsigned int type, struct aic_dev_data *aic_dev);
-static void aic7xxx_set_width(struct aic7xxx_host *p, int target, int channel,
- int lun, unsigned int width, unsigned int type,
- struct aic_dev_data *aic_dev);
-static void aic7xxx_panic_abort(struct aic7xxx_host *p, struct scsi_cmnd *cmd);
-static void aic7xxx_print_card(struct aic7xxx_host *p);
-static void aic7xxx_print_scratch_ram(struct aic7xxx_host *p);
-static void aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded);
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
-static void aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer);
-#endif
-
-/****************************************************************************
- *
- * These functions are now used. They happen to be wrapped in useless
- * inb/outb port read/writes around the real reads and writes because it
- * seems that certain very fast CPUs have a problem dealing with us when
- * going at full speed.
- *
- ***************************************************************************/
-
-static unsigned char
-aic_inb(struct aic7xxx_host *p, long port)
-{
-#ifdef MMAPIO
- unsigned char x;
- if(p->maddr)
- {
- x = readb(p->maddr + port);
- }
- else
- {
- x = inb(p->base + port);
- }
- return(x);
-#else
- return(inb(p->base + port));
-#endif
-}
-
-static void
-aic_outb(struct aic7xxx_host *p, unsigned char val, long port)
-{
-#ifdef MMAPIO
- if(p->maddr)
- {
- writeb(val, p->maddr + port);
- mb(); /* locked operation in order to force CPU ordering */
- readb(p->maddr + HCNTRL); /* dummy read to flush the PCI write */
- }
- else
- {
- outb(val, p->base + port);
- mb(); /* locked operation in order to force CPU ordering */
- }
-#else
- outb(val, p->base + port);
- mb(); /* locked operation in order to force CPU ordering */
-#endif
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_setup
- *
- * Description:
- * Handle Linux boot parameters. This routine allows for assigning a value
- * to a parameter with a ':' between the parameter and the value.
- * ie. aic7xxx=unpause:0x0A,extended
- *-F*************************************************************************/
-static int
-aic7xxx_setup(char *s)
-{
- int i, n;
- char *p;
- char *end;
-
- static struct {
- const char *name;
- unsigned int *flag;
- } options[] = {
- { "extended", &aic7xxx_extended },
- { "no_reset", &aic7xxx_no_reset },
- { "irq_trigger", &aic7xxx_irq_trigger },
- { "verbose", &aic7xxx_verbose },
- { "reverse_scan",&aic7xxx_reverse_scan },
- { "override_term", &aic7xxx_override_term },
- { "stpwlev", &aic7xxx_stpwlev },
- { "no_probe", &aic7xxx_no_probe },
- { "panic_on_abort", &aic7xxx_panic_on_abort },
- { "pci_parity", &aic7xxx_pci_parity },
- { "dump_card", &aic7xxx_dump_card },
- { "dump_sequencer", &aic7xxx_dump_sequencer },
- { "default_queue_depth", &aic7xxx_default_queue_depth },
- { "scbram", &aic7xxx_scbram },
- { "seltime", &aic7xxx_seltime },
- { "tag_info", NULL }
- };
-
- end = strchr(s, '\0');
-
- while ((p = strsep(&s, ",.")) != NULL)
- {
- for (i = 0; i < ARRAY_SIZE(options); i++)
- {
- n = strlen(options[i].name);
- if (!strncmp(options[i].name, p, n))
- {
- if (!strncmp(p, "tag_info", n))
- {
- if (p[n] == ':')
- {
- char *base;
- char *tok, *tok_end, *tok_end2;
- char tok_list[] = { '.', ',', '{', '}', '\0' };
- int i, instance = -1, device = -1;
- unsigned char done = FALSE;
-
- base = p;
- tok = base + n + 1; /* Forward us just past the ':' */
- tok_end = strchr(tok, '\0');
- if (tok_end < end)
- *tok_end = ',';
- while(!done)
- {
- switch(*tok)
- {
- case '{':
- if (instance == -1)
- instance = 0;
- else if (device == -1)
- device = 0;
- tok++;
- break;
- case '}':
- if (device != -1)
- device = -1;
- else if (instance != -1)
- instance = -1;
- tok++;
- break;
- case ',':
- case '.':
- if (instance == -1)
- done = TRUE;
- else if (device >= 0)
- device++;
- else if (instance >= 0)
- instance++;
- if ( (device >= MAX_TARGETS) ||
- (instance >= ARRAY_SIZE(aic7xxx_tag_info)) )
- done = TRUE;
- tok++;
- if (!done)
- {
- base = tok;
- }
- break;
- case '\0':
- done = TRUE;
- break;
- default:
- done = TRUE;
- tok_end = strchr(tok, '\0');
- for(i=0; tok_list[i]; i++)
- {
- tok_end2 = strchr(tok, tok_list[i]);
- if ( (tok_end2) && (tok_end2 < tok_end) )
- {
- tok_end = tok_end2;
- done = FALSE;
- }
- }
- if ( (instance >= 0) && (device >= 0) &&
- (instance < ARRAY_SIZE(aic7xxx_tag_info)) &&
- (device < MAX_TARGETS) )
- aic7xxx_tag_info[instance].tag_commands[device] =
- simple_strtoul(tok, NULL, 0) & 0xff;
- tok = tok_end;
- break;
- }
- }
- while((p != base) && (p != NULL))
- p = strsep(&s, ",.");
- }
- }
- else if (p[n] == ':')
- {
- *(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0);
- if(!strncmp(p, "seltime", n))
- {
- *(options[i].flag) = (*(options[i].flag) % 4) << 3;
- }
- }
- else if (!strncmp(p, "verbose", n))
- {
- *(options[i].flag) = 0xff29;
- }
- else
- {
- *(options[i].flag) = ~(*(options[i].flag));
- if(!strncmp(p, "seltime", n))
- {
- *(options[i].flag) = (*(options[i].flag) % 4) << 3;
- }
- }
- }
- }
- }
- return 1;
-}
-
-__setup("aic7xxx=", aic7xxx_setup);
-
-/*+F*************************************************************************
- * Function:
- * pause_sequencer
- *
- * Description:
- * Pause the sequencer and wait for it to actually stop - this
- * is important since the sequencer can disable pausing for critical
- * sections.
- *-F*************************************************************************/
-static void
-pause_sequencer(struct aic7xxx_host *p)
-{
- aic_outb(p, p->pause, HCNTRL);
- while ((aic_inb(p, HCNTRL) & PAUSE) == 0)
- {
- ;
- }
- if(p->features & AHC_ULTRA2)
- {
- aic_inb(p, CCSCBCTL);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * unpause_sequencer
- *
- * Description:
- * Unpause the sequencer. Unremarkable, yet done often enough to
- * warrant an easy way to do it.
- *-F*************************************************************************/
-static void
-unpause_sequencer(struct aic7xxx_host *p, int unpause_always)
-{
- if (unpause_always ||
- ( !(aic_inb(p, INTSTAT) & (SCSIINT | SEQINT | BRKADRINT)) &&
- !(p->flags & AHC_HANDLING_REQINITS) ) )
- {
- aic_outb(p, p->unpause, HCNTRL);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * restart_sequencer
- *
- * Description:
- * Restart the sequencer program from address zero. This assumes
- * that the sequencer is already paused.
- *-F*************************************************************************/
-static void
-restart_sequencer(struct aic7xxx_host *p)
-{
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
- aic_outb(p, FASTMODE, SEQCTL);
-}
-
-/*
- * We include the aic7xxx_seq.c file here so that the other defines have
- * already been made, and so that it comes before the code that actually
- * downloads the instructions (since we don't typically use function
- * prototype, our code has to be ordered that way, it's a left-over from
- * the original driver days.....I should fix it some time DL).
- */
-#include "aic7xxx_old/aic7xxx_seq.c"
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_check_patch
- *
- * Description:
- * See if the next patch to download should be downloaded.
- *-F*************************************************************************/
-static int
-aic7xxx_check_patch(struct aic7xxx_host *p,
- struct sequencer_patch **start_patch, int start_instr, int *skip_addr)
-{
- struct sequencer_patch *cur_patch;
- struct sequencer_patch *last_patch;
- int num_patches;
-
- num_patches = ARRAY_SIZE(sequencer_patches);
- last_patch = &sequencer_patches[num_patches];
- cur_patch = *start_patch;
-
- while ((cur_patch < last_patch) && (start_instr == cur_patch->begin))
- {
- if (cur_patch->patch_func(p) == 0)
- {
- /*
- * Start rejecting code.
- */
- *skip_addr = start_instr + cur_patch->skip_instr;
- cur_patch += cur_patch->skip_patch;
- }
- else
- {
- /*
- * Found an OK patch. Advance the patch pointer to the next patch
- * and wait for our instruction pointer to get here.
- */
- cur_patch++;
- }
- }
-
- *start_patch = cur_patch;
- if (start_instr < *skip_addr)
- /*
- * Still skipping
- */
- return (0);
- return(1);
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_download_instr
- *
- * Description:
- * Find the next patch to download.
- *-F*************************************************************************/
-static void
-aic7xxx_download_instr(struct aic7xxx_host *p, int instrptr,
- unsigned char *dconsts)
-{
- union ins_formats instr;
- struct ins_format1 *fmt1_ins;
- struct ins_format3 *fmt3_ins;
- unsigned char opcode;
-
- instr = *(union ins_formats*) &seqprog[instrptr * 4];
-
- instr.integer = le32_to_cpu(instr.integer);
-
- fmt1_ins = &instr.format1;
- fmt3_ins = NULL;
-
- /* Pull the opcode */
- opcode = instr.format1.opcode;
- switch (opcode)
- {
- case AIC_OP_JMP:
- case AIC_OP_JC:
- case AIC_OP_JNC:
- case AIC_OP_CALL:
- case AIC_OP_JNE:
- case AIC_OP_JNZ:
- case AIC_OP_JE:
- case AIC_OP_JZ:
- {
- struct sequencer_patch *cur_patch;
- int address_offset;
- unsigned int address;
- int skip_addr;
- int i;
-
- fmt3_ins = &instr.format3;
- address_offset = 0;
- address = fmt3_ins->address;
- cur_patch = sequencer_patches;
- skip_addr = 0;
-
- for (i = 0; i < address;)
- {
- aic7xxx_check_patch(p, &cur_patch, i, &skip_addr);
- if (skip_addr > i)
- {
- int end_addr;
-
- end_addr = min_t(int, address, skip_addr);
- address_offset += end_addr - i;
- i = skip_addr;
- }
- else
- {
- i++;
- }
- }
- address -= address_offset;
- fmt3_ins->address = address;
- /* Fall Through to the next code section */
- }
- case AIC_OP_OR:
- case AIC_OP_AND:
- case AIC_OP_XOR:
- case AIC_OP_ADD:
- case AIC_OP_ADC:
- case AIC_OP_BMOV:
- if (fmt1_ins->parity != 0)
- {
- fmt1_ins->immediate = dconsts[fmt1_ins->immediate];
- }
- fmt1_ins->parity = 0;
- /* Fall Through to the next code section */
- case AIC_OP_ROL:
- if ((p->features & AHC_ULTRA2) != 0)
- {
- int i, count;
-
- /* Calculate odd parity for the instruction */
- for ( i=0, count=0; i < 31; i++)
- {
- unsigned int mask;
-
- mask = 0x01 << i;
- if ((instr.integer & mask) != 0)
- count++;
- }
- if (!(count & 0x01))
- instr.format1.parity = 1;
- }
- else
- {
- if (fmt3_ins != NULL)
- {
- instr.integer = fmt3_ins->immediate |
- (fmt3_ins->source << 8) |
- (fmt3_ins->address << 16) |
- (fmt3_ins->opcode << 25);
- }
- else
- {
- instr.integer = fmt1_ins->immediate |
- (fmt1_ins->source << 8) |
- (fmt1_ins->destination << 16) |
- (fmt1_ins->ret << 24) |
- (fmt1_ins->opcode << 25);
- }
- }
- aic_outb(p, (instr.integer & 0xff), SEQRAM);
- aic_outb(p, ((instr.integer >> 8) & 0xff), SEQRAM);
- aic_outb(p, ((instr.integer >> 16) & 0xff), SEQRAM);
- aic_outb(p, ((instr.integer >> 24) & 0xff), SEQRAM);
- udelay(10);
- break;
-
- default:
- panic("aic7xxx: Unknown opcode encountered in sequencer program.");
- break;
- }
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_loadseq
- *
- * Description:
- * Load the sequencer code into the controller memory.
- *-F*************************************************************************/
-static void
-aic7xxx_loadseq(struct aic7xxx_host *p)
-{
- struct sequencer_patch *cur_patch;
- int i;
- int downloaded;
- int skip_addr;
- unsigned char download_consts[4] = {0, 0, 0, 0};
-
- if (aic7xxx_verbose & VERBOSE_PROBE)
- {
- printk(KERN_INFO "(scsi%d) Downloading sequencer code...", p->host_no);
- }
-#if 0
- download_consts[TMODE_NUMCMDS] = p->num_targetcmds;
-#endif
- download_consts[TMODE_NUMCMDS] = 0;
- cur_patch = &sequencer_patches[0];
- downloaded = 0;
- skip_addr = 0;
-
- aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL);
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
-
- for (i = 0; i < sizeof(seqprog) / 4; i++)
- {
- if (aic7xxx_check_patch(p, &cur_patch, i, &skip_addr) == 0)
- {
- /* Skip this instruction for this configuration. */
- continue;
- }
- aic7xxx_download_instr(p, i, &download_consts[0]);
- downloaded++;
- }
-
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
- aic_outb(p, FASTMODE | FAILDIS, SEQCTL);
- unpause_sequencer(p, TRUE);
- mdelay(1);
- pause_sequencer(p);
- aic_outb(p, FASTMODE, SEQCTL);
- if (aic7xxx_verbose & VERBOSE_PROBE)
- {
- printk(" %d instructions downloaded\n", downloaded);
- }
- if (aic7xxx_dump_sequencer)
- aic7xxx_print_sequencer(p, downloaded);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_print_sequencer
- *
- * Description:
- * Print the contents of the sequencer memory to the screen.
- *-F*************************************************************************/
-static void
-aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded)
-{
- int i, k, temp;
-
- aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL);
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
-
- k = 0;
- for (i=0; i < downloaded; i++)
- {
- if ( k == 0 )
- printk("%03x: ", i);
- temp = aic_inb(p, SEQRAM);
- temp |= (aic_inb(p, SEQRAM) << 8);
- temp |= (aic_inb(p, SEQRAM) << 16);
- temp |= (aic_inb(p, SEQRAM) << 24);
- printk("%08x", temp);
- if ( ++k == 8 )
- {
- printk("\n");
- k = 0;
- }
- else
- printk(" ");
- }
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
- aic_outb(p, FASTMODE | FAILDIS, SEQCTL);
- unpause_sequencer(p, TRUE);
- mdelay(1);
- pause_sequencer(p);
- aic_outb(p, FASTMODE, SEQCTL);
- printk("\n");
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_info
- *
- * Description:
- * Return a string describing the driver.
- *-F*************************************************************************/
-static const char *
-aic7xxx_info(struct Scsi_Host *dooh)
-{
- static char buffer[256];
- char *bp;
- struct aic7xxx_host *p;
-
- bp = &buffer[0];
- p = (struct aic7xxx_host *)dooh->hostdata;
- memset(bp, 0, sizeof(buffer));
- strcpy(bp, "Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) ");
- strcat(bp, AIC7XXX_C_VERSION);
- strcat(bp, "/");
- strcat(bp, AIC7XXX_H_VERSION);
- strcat(bp, "\n");
- strcat(bp, " <");
- strcat(bp, board_names[p->board_name_index]);
- strcat(bp, ">");
-
- return(bp);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_find_syncrate
- *
- * Description:
- * Look up the valid period to SCSIRATE conversion in our table
- *-F*************************************************************************/
-static struct aic7xxx_syncrate *
-aic7xxx_find_syncrate(struct aic7xxx_host *p, unsigned int *period,
- unsigned int maxsync, unsigned char *options)
-{
- struct aic7xxx_syncrate *syncrate;
- int done = FALSE;
-
- switch(*options)
- {
- case MSG_EXT_PPR_OPTION_DT_CRC:
- case MSG_EXT_PPR_OPTION_DT_UNITS:
- if(!(p->features & AHC_ULTRA3))
- {
- *options = 0;
- maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2);
- }
- break;
- case MSG_EXT_PPR_OPTION_DT_CRC_QUICK:
- case MSG_EXT_PPR_OPTION_DT_UNITS_QUICK:
- if(!(p->features & AHC_ULTRA3))
- {
- *options = 0;
- maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2);
- }
- else
- {
- /*
- * we don't support the Quick Arbitration variants of dual edge
- * clocking. As it turns out, we want to send back the
- * same basic option, but without the QA attribute.
- * We know that we are responding because we would never set
- * these options ourself, we would only respond to them.
- */
- switch(*options)
- {
- case MSG_EXT_PPR_OPTION_DT_CRC_QUICK:
- *options = MSG_EXT_PPR_OPTION_DT_CRC;
- break;
- case MSG_EXT_PPR_OPTION_DT_UNITS_QUICK:
- *options = MSG_EXT_PPR_OPTION_DT_UNITS;
- break;
- }
- }
- break;
- default:
- *options = 0;
- maxsync = max_t(unsigned int, maxsync, AHC_SYNCRATE_ULTRA2);
- break;
- }
- syncrate = &aic7xxx_syncrates[maxsync];
- while ( (syncrate->rate[0] != NULL) &&
- (!(p->features & AHC_ULTRA2) || syncrate->sxfr_ultra2) )
- {
- if (*period <= syncrate->period)
- {
- switch(*options)
- {
- case MSG_EXT_PPR_OPTION_DT_CRC:
- case MSG_EXT_PPR_OPTION_DT_UNITS:
- if(!(syncrate->sxfr_ultra2 & AHC_SYNCRATE_CRC))
- {
- done = TRUE;
- /*
- * oops, we went too low for the CRC/DualEdge signalling, so
- * clear the options byte
- */
- *options = 0;
- /*
- * We'll be sending a reply to this packet to set the options
- * properly, so unilaterally set the period as well.
- */
- *period = syncrate->period;
- }
- else
- {
- done = TRUE;
- if(syncrate == &aic7xxx_syncrates[maxsync])
- {
- *period = syncrate->period;
- }
- }
- break;
- default:
- if(!(syncrate->sxfr_ultra2 & AHC_SYNCRATE_CRC))
- {
- done = TRUE;
- if(syncrate == &aic7xxx_syncrates[maxsync])
- {
- *period = syncrate->period;
- }
- }
- break;
- }
- if(done)
- {
- break;
- }
- }
- syncrate++;
- }
- if ( (*period == 0) || (syncrate->rate[0] == NULL) ||
- ((p->features & AHC_ULTRA2) && (syncrate->sxfr_ultra2 == 0)) )
- {
- /*
- * Use async transfers for this target
- */
- *options = 0;
- *period = 255;
- syncrate = NULL;
- }
- return (syncrate);
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_find_period
- *
- * Description:
- * Look up the valid SCSIRATE to period conversion in our table
- *-F*************************************************************************/
-static unsigned int
-aic7xxx_find_period(struct aic7xxx_host *p, unsigned int scsirate,
- unsigned int maxsync)
-{
- struct aic7xxx_syncrate *syncrate;
-
- if (p->features & AHC_ULTRA2)
- {
- scsirate &= SXFR_ULTRA2;
- }
- else
- {
- scsirate &= SXFR;
- }
-
- syncrate = &aic7xxx_syncrates[maxsync];
- while (syncrate->rate[0] != NULL)
- {
- if (p->features & AHC_ULTRA2)
- {
- if (syncrate->sxfr_ultra2 == 0)
- break;
- else if (scsirate == syncrate->sxfr_ultra2)
- return (syncrate->period);
- else if (scsirate == (syncrate->sxfr_ultra2 & ~AHC_SYNCRATE_CRC))
- return (syncrate->period);
- }
- else if (scsirate == (syncrate->sxfr & ~ULTRA_SXFR))
- {
- return (syncrate->period);
- }
- syncrate++;
- }
- return (0); /* async */
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_validate_offset
- *
- * Description:
- * Set a valid offset value for a particular card in use and transfer
- * settings in use.
- *-F*************************************************************************/
-static void
-aic7xxx_validate_offset(struct aic7xxx_host *p,
- struct aic7xxx_syncrate *syncrate, unsigned int *offset, int wide)
-{
- unsigned int maxoffset;
-
- /* Limit offset to what the card (and device) can do */
- if (syncrate == NULL)
- {
- maxoffset = 0;
- }
- else if (p->features & AHC_ULTRA2)
- {
- maxoffset = MAX_OFFSET_ULTRA2;
- }
- else
- {
- if (wide)
- maxoffset = MAX_OFFSET_16BIT;
- else
- maxoffset = MAX_OFFSET_8BIT;
- }
- *offset = min(*offset, maxoffset);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_set_syncrate
- *
- * Description:
- * Set the actual syncrate down in the card and in our host structs
- *-F*************************************************************************/
-static void
-aic7xxx_set_syncrate(struct aic7xxx_host *p, struct aic7xxx_syncrate *syncrate,
- int target, int channel, unsigned int period, unsigned int offset,
- unsigned char options, unsigned int type, struct aic_dev_data *aic_dev)
-{
- unsigned char tindex;
- unsigned short target_mask;
- unsigned char lun, old_options;
- unsigned int old_period, old_offset;
-
- tindex = target | (channel << 3);
- target_mask = 0x01 << tindex;
- lun = aic_inb(p, SCB_TCL) & 0x07;
-
- if (syncrate == NULL)
- {
- period = 0;
- offset = 0;
- }
-
- old_period = aic_dev->cur.period;
- old_offset = aic_dev->cur.offset;
- old_options = aic_dev->cur.options;
-
-
- if (type & AHC_TRANS_CUR)
- {
- unsigned int scsirate;
-
- scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
- if (p->features & AHC_ULTRA2)
- {
- scsirate &= ~SXFR_ULTRA2;
- if (syncrate != NULL)
- {
- switch(options)
- {
- case MSG_EXT_PPR_OPTION_DT_UNITS:
- /*
- * mask off the CRC bit in the xfer settings
- */
- scsirate |= (syncrate->sxfr_ultra2 & ~AHC_SYNCRATE_CRC);
- break;
- default:
- scsirate |= syncrate->sxfr_ultra2;
- break;
- }
- }
- if (type & AHC_TRANS_ACTIVE)
- {
- aic_outb(p, offset, SCSIOFFSET);
- }
- aic_outb(p, offset, TARG_OFFSET + tindex);
- }
- else /* Not an Ultra2 controller */
- {
- scsirate &= ~(SXFR|SOFS);
- p->ultraenb &= ~target_mask;
- if (syncrate != NULL)
- {
- if (syncrate->sxfr & ULTRA_SXFR)
- {
- p->ultraenb |= target_mask;
- }
- scsirate |= (syncrate->sxfr & SXFR);
- scsirate |= (offset & SOFS);
- }
- if (type & AHC_TRANS_ACTIVE)
- {
- unsigned char sxfrctl0;
-
- sxfrctl0 = aic_inb(p, SXFRCTL0);
- sxfrctl0 &= ~FAST20;
- if (p->ultraenb & target_mask)
- sxfrctl0 |= FAST20;
- aic_outb(p, sxfrctl0, SXFRCTL0);
- }
- aic_outb(p, p->ultraenb & 0xff, ULTRA_ENB);
- aic_outb(p, (p->ultraenb >> 8) & 0xff, ULTRA_ENB + 1 );
- }
- if (type & AHC_TRANS_ACTIVE)
- {
- aic_outb(p, scsirate, SCSIRATE);
- }
- aic_outb(p, scsirate, TARG_SCSIRATE + tindex);
- aic_dev->cur.period = period;
- aic_dev->cur.offset = offset;
- aic_dev->cur.options = options;
- if ( !(type & AHC_TRANS_QUITE) &&
- (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (aic_dev->flags & DEVICE_PRINT_DTR) )
- {
- if (offset)
- {
- int rate_mod = (scsirate & WIDEXFER) ? 1 : 0;
-
- printk(INFO_LEAD "Synchronous at %s Mbyte/sec, "
- "offset %d.\n", p->host_no, channel, target, lun,
- syncrate->rate[rate_mod], offset);
- }
- else
- {
- printk(INFO_LEAD "Using asynchronous transfers.\n",
- p->host_no, channel, target, lun);
- }
- aic_dev->flags &= ~DEVICE_PRINT_DTR;
- }
- }
-
- if (type & AHC_TRANS_GOAL)
- {
- aic_dev->goal.period = period;
- aic_dev->goal.offset = offset;
- aic_dev->goal.options = options;
- }
-
- if (type & AHC_TRANS_USER)
- {
- p->user[tindex].period = period;
- p->user[tindex].offset = offset;
- p->user[tindex].options = options;
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_set_width
- *
- * Description:
- * Set the actual width down in the card and in our host structs
- *-F*************************************************************************/
-static void
-aic7xxx_set_width(struct aic7xxx_host *p, int target, int channel, int lun,
- unsigned int width, unsigned int type, struct aic_dev_data *aic_dev)
-{
- unsigned char tindex;
- unsigned short target_mask;
- unsigned int old_width;
-
- tindex = target | (channel << 3);
- target_mask = 1 << tindex;
-
- old_width = aic_dev->cur.width;
-
- if (type & AHC_TRANS_CUR)
- {
- unsigned char scsirate;
-
- scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
-
- scsirate &= ~WIDEXFER;
- if (width == MSG_EXT_WDTR_BUS_16_BIT)
- scsirate |= WIDEXFER;
-
- aic_outb(p, scsirate, TARG_SCSIRATE + tindex);
-
- if (type & AHC_TRANS_ACTIVE)
- aic_outb(p, scsirate, SCSIRATE);
-
- aic_dev->cur.width = width;
-
- if ( !(type & AHC_TRANS_QUITE) &&
- (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- (aic_dev->flags & DEVICE_PRINT_DTR) )
- {
- printk(INFO_LEAD "Using %s transfers\n", p->host_no, channel, target,
- lun, (scsirate & WIDEXFER) ? "Wide(16bit)" : "Narrow(8bit)" );
- }
- }
-
- if (type & AHC_TRANS_GOAL)
- aic_dev->goal.width = width;
- if (type & AHC_TRANS_USER)
- p->user[tindex].width = width;
-
- if (aic_dev->goal.offset)
- {
- if (p->features & AHC_ULTRA2)
- {
- aic_dev->goal.offset = MAX_OFFSET_ULTRA2;
- }
- else if (width == MSG_EXT_WDTR_BUS_16_BIT)
- {
- aic_dev->goal.offset = MAX_OFFSET_16BIT;
- }
- else
- {
- aic_dev->goal.offset = MAX_OFFSET_8BIT;
- }
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * scbq_init
- *
- * Description:
- * SCB queue initialization.
- *
- *-F*************************************************************************/
-static void
-scbq_init(volatile scb_queue_type *queue)
-{
- queue->head = NULL;
- queue->tail = NULL;
-}
-
-/*+F*************************************************************************
- * Function:
- * scbq_insert_head
- *
- * Description:
- * Add an SCB to the head of the list.
- *
- *-F*************************************************************************/
-static inline void
-scbq_insert_head(volatile scb_queue_type *queue, struct aic7xxx_scb *scb)
-{
- scb->q_next = queue->head;
- queue->head = scb;
- if (queue->tail == NULL) /* If list was empty, update tail. */
- queue->tail = queue->head;
-}
-
-/*+F*************************************************************************
- * Function:
- * scbq_remove_head
- *
- * Description:
- * Remove an SCB from the head of the list.
- *
- *-F*************************************************************************/
-static inline struct aic7xxx_scb *
-scbq_remove_head(volatile scb_queue_type *queue)
-{
- struct aic7xxx_scb * scbp;
-
- scbp = queue->head;
- if (queue->head != NULL)
- queue->head = queue->head->q_next;
- if (queue->head == NULL) /* If list is now empty, update tail. */
- queue->tail = NULL;
- return(scbp);
-}
-
-/*+F*************************************************************************
- * Function:
- * scbq_remove
- *
- * Description:
- * Removes an SCB from the list.
- *
- *-F*************************************************************************/
-static inline void
-scbq_remove(volatile scb_queue_type *queue, struct aic7xxx_scb *scb)
-{
- if (queue->head == scb)
- {
- /* At beginning of queue, remove from head. */
- scbq_remove_head(queue);
- }
- else
- {
- struct aic7xxx_scb *curscb = queue->head;
-
- /*
- * Search until the next scb is the one we're looking for, or
- * we run out of queue.
- */
- while ((curscb != NULL) && (curscb->q_next != scb))
- {
- curscb = curscb->q_next;
- }
- if (curscb != NULL)
- {
- /* Found it. */
- curscb->q_next = scb->q_next;
- if (scb->q_next == NULL)
- {
- /* Update the tail when removing the tail. */
- queue->tail = curscb;
- }
- }
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * scbq_insert_tail
- *
- * Description:
- * Add an SCB at the tail of the list.
- *
- *-F*************************************************************************/
-static inline void
-scbq_insert_tail(volatile scb_queue_type *queue, struct aic7xxx_scb *scb)
-{
- scb->q_next = NULL;
- if (queue->tail != NULL) /* Add the scb at the end of the list. */
- queue->tail->q_next = scb;
- queue->tail = scb; /* Update the tail. */
- if (queue->head == NULL) /* If list was empty, update head. */
- queue->head = queue->tail;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_match_scb
- *
- * Description:
- * Checks to see if an scb matches the target/channel as specified.
- * If target is ALL_TARGETS (-1), then we're looking for any device
- * on the specified channel; this happens when a channel is going
- * to be reset and all devices on that channel must be aborted.
- *-F*************************************************************************/
-static int
-aic7xxx_match_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb,
- int target, int channel, int lun, unsigned char tag)
-{
- int targ = (scb->hscb->target_channel_lun >> 4) & 0x0F;
- int chan = (scb->hscb->target_channel_lun >> 3) & 0x01;
- int slun = scb->hscb->target_channel_lun & 0x07;
- int match;
-
- match = ((chan == channel) || (channel == ALL_CHANNELS));
- if (match != 0)
- match = ((targ == target) || (target == ALL_TARGETS));
- if (match != 0)
- match = ((lun == slun) || (lun == ALL_LUNS));
- if (match != 0)
- match = ((tag == scb->hscb->tag) || (tag == SCB_LIST_NULL));
-
- return (match);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_add_curscb_to_free_list
- *
- * Description:
- * Adds the current scb (in SCBPTR) to the list of free SCBs.
- *-F*************************************************************************/
-static void
-aic7xxx_add_curscb_to_free_list(struct aic7xxx_host *p)
-{
- /*
- * Invalidate the tag so that aic7xxx_find_scb doesn't think
- * it's active
- */
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic_outb(p, 0, SCB_CONTROL);
-
- aic_outb(p, aic_inb(p, FREE_SCBH), SCB_NEXT);
- aic_outb(p, aic_inb(p, SCBPTR), FREE_SCBH);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_rem_scb_from_disc_list
- *
- * Description:
- * Removes the current SCB from the disconnected list and adds it
- * to the free list.
- *-F*************************************************************************/
-static unsigned char
-aic7xxx_rem_scb_from_disc_list(struct aic7xxx_host *p, unsigned char scbptr,
- unsigned char prev)
-{
- unsigned char next;
-
- aic_outb(p, scbptr, SCBPTR);
- next = aic_inb(p, SCB_NEXT);
- aic7xxx_add_curscb_to_free_list(p);
-
- if (prev != SCB_LIST_NULL)
- {
- aic_outb(p, prev, SCBPTR);
- aic_outb(p, next, SCB_NEXT);
- }
- else
- {
- aic_outb(p, next, DISCONNECTED_SCBH);
- }
-
- return next;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_busy_target
- *
- * Description:
- * Set the specified target busy.
- *-F*************************************************************************/
-static inline void
-aic7xxx_busy_target(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- p->untagged_scbs[scb->hscb->target_channel_lun] = scb->hscb->tag;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_index_busy_target
- *
- * Description:
- * Returns the index of the busy target, and optionally sets the
- * target inactive.
- *-F*************************************************************************/
-static inline unsigned char
-aic7xxx_index_busy_target(struct aic7xxx_host *p, unsigned char tcl,
- int unbusy)
-{
- unsigned char busy_scbid;
-
- busy_scbid = p->untagged_scbs[tcl];
- if (unbusy)
- {
- p->untagged_scbs[tcl] = SCB_LIST_NULL;
- }
- return (busy_scbid);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_find_scb
- *
- * Description:
- * Look through the SCB array of the card and attempt to find the
- * hardware SCB that corresponds to the passed in SCB. Return
- * SCB_LIST_NULL if unsuccessful. This routine assumes that the
- * card is already paused.
- *-F*************************************************************************/
-static unsigned char
-aic7xxx_find_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- unsigned char saved_scbptr;
- unsigned char curindex;
-
- saved_scbptr = aic_inb(p, SCBPTR);
- curindex = 0;
- for (curindex = 0; curindex < p->scb_data->maxhscbs; curindex++)
- {
- aic_outb(p, curindex, SCBPTR);
- if (aic_inb(p, SCB_TAG) == scb->hscb->tag)
- {
- break;
- }
- }
- aic_outb(p, saved_scbptr, SCBPTR);
- if (curindex >= p->scb_data->maxhscbs)
- {
- curindex = SCB_LIST_NULL;
- }
-
- return (curindex);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_allocate_scb
- *
- * Description:
- * Get an SCB from the free list or by allocating a new one.
- *-F*************************************************************************/
-static int
-aic7xxx_allocate_scb(struct aic7xxx_host *p)
-{
- struct aic7xxx_scb *scbp = NULL;
- int scb_size = (sizeof (struct hw_scatterlist) * AIC7XXX_MAX_SG) + 12 + 6;
- int i;
- int step = PAGE_SIZE / 1024;
- unsigned long scb_count = 0;
- struct hw_scatterlist *hsgp;
- struct aic7xxx_scb *scb_ap;
- struct aic7xxx_scb_dma *scb_dma;
- unsigned char *bufs;
-
- if (p->scb_data->numscbs < p->scb_data->maxscbs)
- {
- /*
- * Calculate the optimal number of SCBs to allocate.
- *
- * NOTE: This formula works because the sizeof(sg_array) is always
- * 1024. Therefore, scb_size * i would always be > PAGE_SIZE *
- * (i/step). The (i-1) allows the left hand side of the equation
- * to grow into the right hand side to a point of near perfect
- * efficiency since scb_size * (i -1) is growing slightly faster
- * than the right hand side. If the number of SG array elements
- * is changed, this function may not be near so efficient any more.
- *
- * Since the DMA'able buffers are now allocated in a separate
- * chunk this algorithm has been modified to match. The '12'
- * and '6' factors in scb_size are for the DMA'able command byte
- * and sensebuffers respectively. -DaveM
- */
- for ( i=step;; i *= 2 )
- {
- if ( (scb_size * (i-1)) >= ( (PAGE_SIZE * (i/step)) - 64 ) )
- {
- i /= 2;
- break;
- }
- }
- scb_count = min( (i-1), p->scb_data->maxscbs - p->scb_data->numscbs);
- scb_ap = kmalloc(sizeof (struct aic7xxx_scb) * scb_count
- + sizeof(struct aic7xxx_scb_dma), GFP_ATOMIC);
- if (scb_ap == NULL)
- return(0);
- scb_dma = (struct aic7xxx_scb_dma *)&scb_ap[scb_count];
- hsgp = (struct hw_scatterlist *)
- pci_alloc_consistent(p->pdev, scb_size * scb_count,
- &scb_dma->dma_address);
- if (hsgp == NULL)
- {
- kfree(scb_ap);
- return(0);
- }
- bufs = (unsigned char *)&hsgp[scb_count * AIC7XXX_MAX_SG];
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- {
- if (p->scb_data->numscbs == 0)
- printk(INFO_LEAD "Allocating initial %ld SCB structures.\n",
- p->host_no, -1, -1, -1, scb_count);
- else
- printk(INFO_LEAD "Allocating %ld additional SCB structures.\n",
- p->host_no, -1, -1, -1, scb_count);
- }
-#endif
- memset(scb_ap, 0, sizeof (struct aic7xxx_scb) * scb_count);
- scb_dma->dma_offset = (unsigned long)scb_dma->dma_address
- - (unsigned long)hsgp;
- scb_dma->dma_len = scb_size * scb_count;
- for (i=0; i < scb_count; i++)
- {
- scbp = &scb_ap[i];
- scbp->hscb = &p->scb_data->hscbs[p->scb_data->numscbs];
- scbp->sg_list = &hsgp[i * AIC7XXX_MAX_SG];
- scbp->sense_cmd = bufs;
- scbp->cmnd = bufs + 6;
- bufs += 12 + 6;
- scbp->scb_dma = scb_dma;
- memset(scbp->hscb, 0, sizeof(struct aic7xxx_hwscb));
- scbp->hscb->tag = p->scb_data->numscbs;
- /*
- * Place in the scb array; never is removed
- */
- p->scb_data->scb_array[p->scb_data->numscbs++] = scbp;
- scbq_insert_tail(&p->scb_data->free_scbs, scbp);
- }
- scbp->kmalloc_ptr = scb_ap;
- }
- return(scb_count);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_queue_cmd_complete
- *
- * Description:
- * Due to race conditions present in the SCSI subsystem, it is easier
- * to queue completed commands, then call scsi_done() on them when
- * we're finished. This function queues the completed commands.
- *-F*************************************************************************/
-static void
-aic7xxx_queue_cmd_complete(struct aic7xxx_host *p, struct scsi_cmnd *cmd)
-{
- aic7xxx_position(cmd) = SCB_LIST_NULL;
- cmd->host_scribble = (char *)p->completeq.head;
- p->completeq.head = cmd;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_done_cmds_complete
- *
- * Description:
- * Process the completed command queue.
- *-F*************************************************************************/
-static void aic7xxx_done_cmds_complete(struct aic7xxx_host *p)
-{
- struct scsi_cmnd *cmd;
-
- while (p->completeq.head != NULL) {
- cmd = p->completeq.head;
- p->completeq.head = (struct scsi_cmnd *) cmd->host_scribble;
- cmd->host_scribble = NULL;
- cmd->scsi_done(cmd);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_free_scb
- *
- * Description:
- * Free the scb and insert into the free scb list.
- *-F*************************************************************************/
-static void
-aic7xxx_free_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
-
- scb->flags = SCB_FREE;
- scb->cmd = NULL;
- scb->sg_count = 0;
- scb->sg_length = 0;
- scb->tag_action = 0;
- scb->hscb->control = 0;
- scb->hscb->target_status = 0;
- scb->hscb->target_channel_lun = SCB_LIST_NULL;
-
- scbq_insert_head(&p->scb_data->free_scbs, scb);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_done
- *
- * Description:
- * Calls the higher level scsi done function and frees the scb.
- *-F*************************************************************************/
-static void
-aic7xxx_done(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- struct scsi_cmnd *cmd = scb->cmd;
- struct aic_dev_data *aic_dev = cmd->device->hostdata;
- int tindex = TARGET_INDEX(cmd);
- struct aic7xxx_scb *scbp;
- unsigned char queue_depth;
-
- scsi_dma_unmap(cmd);
-
- if (scb->flags & SCB_SENSE)
- {
- pci_unmap_single(p->pdev,
- le32_to_cpu(scb->sg_list[0].address),
- SCSI_SENSE_BUFFERSIZE,
- PCI_DMA_FROMDEVICE);
- }
- if (scb->flags & SCB_RECOVERY_SCB)
- {
- p->flags &= ~AHC_ABORT_PENDING;
- }
- if (scb->flags & (SCB_RESET|SCB_ABORT))
- {
- cmd->result |= (DID_RESET << 16);
- }
-
- if ((scb->flags & SCB_MSGOUT_BITS) != 0)
- {
- unsigned short mask;
- int message_error = FALSE;
-
- mask = 0x01 << tindex;
-
- /*
- * Check to see if we get an invalid message or a message error
- * after failing to negotiate a wide or sync transfer message.
- */
- if ((scb->flags & SCB_SENSE) &&
- ((scb->cmd->sense_buffer[12] == 0x43) || /* INVALID_MESSAGE */
- (scb->cmd->sense_buffer[12] == 0x49))) /* MESSAGE_ERROR */
- {
- message_error = TRUE;
- }
-
- if (scb->flags & SCB_MSGOUT_WDTR)
- {
- if (message_error)
- {
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- (aic_dev->flags & DEVICE_PRINT_DTR) )
- {
- printk(INFO_LEAD "Device failed to complete Wide Negotiation "
- "processing and\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "returned a sense error code for invalid message, "
- "disabling future\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "Wide negotiation to this device.\n", p->host_no,
- CTL_OF_SCB(scb));
- }
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 0;
- }
- }
- if (scb->flags & SCB_MSGOUT_SDTR)
- {
- if (message_error)
- {
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- (aic_dev->flags & DEVICE_PRINT_DTR) )
- {
- printk(INFO_LEAD "Device failed to complete Sync Negotiation "
- "processing and\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "returned a sense error code for invalid message, "
- "disabling future\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "Sync negotiation to this device.\n", p->host_no,
- CTL_OF_SCB(scb));
- aic_dev->flags &= ~DEVICE_PRINT_DTR;
- }
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 0;
- }
- }
- if (scb->flags & SCB_MSGOUT_PPR)
- {
- if(message_error)
- {
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- (aic_dev->flags & DEVICE_PRINT_DTR) )
- {
- printk(INFO_LEAD "Device failed to complete Parallel Protocol "
- "Request processing and\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "returned a sense error code for invalid message, "
- "disabling future\n", p->host_no, CTL_OF_SCB(scb));
- printk(INFO_LEAD "Parallel Protocol Request negotiation to this "
- "device.\n", p->host_no, CTL_OF_SCB(scb));
- }
- /*
- * Disable PPR negotiation and revert back to WDTR and SDTR setup
- */
- aic_dev->needppr = aic_dev->needppr_copy = 0;
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 1;
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 1;
- }
- }
- }
-
- queue_depth = aic_dev->temp_q_depth;
- if (queue_depth >= aic_dev->active_cmds)
- {
- scbp = scbq_remove_head(&aic_dev->delayed_scbs);
- if (scbp)
- {
- if (queue_depth == 1)
- {
- /*
- * Give extra preference to untagged devices, such as CD-R devices
- * This makes it more likely that a drive *won't* stuff up while
- * waiting on data at a critical time, such as CD-R writing and
- * audio CD ripping operations. Should also benefit tape drives.
- */
- scbq_insert_head(&p->waiting_scbs, scbp);
- }
- else
- {
- scbq_insert_tail(&p->waiting_scbs, scbp);
- }
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "Moving SCB from delayed to waiting queue.\n",
- p->host_no, CTL_OF_SCB(scbp));
-#endif
- if (queue_depth > aic_dev->active_cmds)
- {
- scbp = scbq_remove_head(&aic_dev->delayed_scbs);
- if (scbp)
- scbq_insert_tail(&p->waiting_scbs, scbp);
- }
- }
- }
- if (!(scb->tag_action))
- {
- aic7xxx_index_busy_target(p, scb->hscb->target_channel_lun,
- /* unbusy */ TRUE);
- if (cmd->device->simple_tags)
- {
- aic_dev->temp_q_depth = aic_dev->max_q_depth;
- }
- }
- if(scb->flags & SCB_DTR_SCB)
- {
- aic_dev->dtr_pending = 0;
- }
- aic_dev->active_cmds--;
- p->activescbs--;
-
- if ((scb->sg_length >= 512) && (((cmd->result >> 16) & 0xf) == DID_OK))
- {
- long *ptr;
- int x, i;
-
-
- if (rq_data_dir(cmd->request) == WRITE)
- {
- aic_dev->w_total++;
- ptr = aic_dev->w_bins;
- }
- else
- {
- aic_dev->r_total++;
- ptr = aic_dev->r_bins;
- }
- x = scb->sg_length;
- x >>= 10;
- for(i=0; i<6; i++)
- {
- x >>= 2;
- if(!x) {
- ptr[i]++;
- break;
- }
- }
- if(i == 6 && x)
- ptr[5]++;
- }
- aic7xxx_free_scb(p, scb);
- aic7xxx_queue_cmd_complete(p, cmd);
-
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_run_done_queue
- *
- * Description:
- * Calls the aic7xxx_done() for the scsi_cmnd of each scb in the
- * aborted list, and adds each scb to the free list. If complete
- * is TRUE, we also process the commands complete list.
- *-F*************************************************************************/
-static void
-aic7xxx_run_done_queue(struct aic7xxx_host *p, /*complete*/ int complete)
-{
- struct aic7xxx_scb *scb;
- int i, found = 0;
-
- for (i = 0; i < p->scb_data->numscbs; i++)
- {
- scb = p->scb_data->scb_array[i];
- if (scb->flags & SCB_QUEUED_FOR_DONE)
- {
- if (scb->flags & SCB_QUEUE_FULL)
- {
- scb->cmd->result = QUEUE_FULL << 1;
- }
- else
- {
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Aborting scb %d\n",
- p->host_no, CTL_OF_SCB(scb), scb->hscb->tag);
- /*
- * Clear any residual information since the normal aic7xxx_done() path
- * doesn't touch the residuals.
- */
- scb->hscb->residual_SG_segment_count = 0;
- scb->hscb->residual_data_count[0] = 0;
- scb->hscb->residual_data_count[1] = 0;
- scb->hscb->residual_data_count[2] = 0;
- }
- found++;
- aic7xxx_done(p, scb);
- }
- }
- if (aic7xxx_verbose & (VERBOSE_ABORT_RETURN | VERBOSE_RESET_RETURN))
- {
- printk(INFO_LEAD "%d commands found and queued for "
- "completion.\n", p->host_no, -1, -1, -1, found);
- }
- if (complete)
- {
- aic7xxx_done_cmds_complete(p);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_abort_waiting_scb
- *
- * Description:
- * Manipulate the waiting for selection list and return the
- * scb that follows the one that we remove.
- *-F*************************************************************************/
-static unsigned char
-aic7xxx_abort_waiting_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb,
- unsigned char scbpos, unsigned char prev)
-{
- unsigned char curscb, next;
-
- /*
- * Select the SCB we want to abort and pull the next pointer out of it.
- */
- curscb = aic_inb(p, SCBPTR);
- aic_outb(p, scbpos, SCBPTR);
- next = aic_inb(p, SCB_NEXT);
-
- aic7xxx_add_curscb_to_free_list(p);
-
- /*
- * Update the waiting list
- */
- if (prev == SCB_LIST_NULL)
- {
- /*
- * First in the list
- */
- aic_outb(p, next, WAITING_SCBH);
- }
- else
- {
- /*
- * Select the scb that pointed to us and update its next pointer.
- */
- aic_outb(p, prev, SCBPTR);
- aic_outb(p, next, SCB_NEXT);
- }
- /*
- * Point us back at the original scb position and inform the SCSI
- * system that the command has been aborted.
- */
- aic_outb(p, curscb, SCBPTR);
- return (next);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_search_qinfifo
- *
- * Description:
- * Search the queue-in FIFO for matching SCBs and conditionally
- * requeue. Returns the number of matching SCBs.
- *-F*************************************************************************/
-static int
-aic7xxx_search_qinfifo(struct aic7xxx_host *p, int target, int channel,
- int lun, unsigned char tag, int flags, int requeue,
- volatile scb_queue_type *queue)
-{
- int found;
- unsigned char qinpos, qintail;
- struct aic7xxx_scb *scbp;
-
- found = 0;
- qinpos = aic_inb(p, QINPOS);
- qintail = p->qinfifonext;
-
- p->qinfifonext = qinpos;
-
- while (qinpos != qintail)
- {
- scbp = p->scb_data->scb_array[p->qinfifo[qinpos++]];
- if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag))
- {
- /*
- * We found an scb that needs to be removed.
- */
- if (requeue && (queue != NULL))
- {
- if (scbp->flags & SCB_WAITINGQ)
- {
- scbq_remove(queue, scbp);
- scbq_remove(&p->waiting_scbs, scbp);
- scbq_remove(&AIC_DEV(scbp->cmd)->delayed_scbs, scbp);
- AIC_DEV(scbp->cmd)->active_cmds++;
- p->activescbs++;
- }
- scbq_insert_tail(queue, scbp);
- AIC_DEV(scbp->cmd)->active_cmds--;
- p->activescbs--;
- scbp->flags |= SCB_WAITINGQ;
- if ( !(scbp->tag_action & TAG_ENB) )
- {
- aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun,
- TRUE);
- }
- }
- else if (requeue)
- {
- p->qinfifo[p->qinfifonext++] = scbp->hscb->tag;
- }
- else
- {
- /*
- * Preserve any SCB_RECOVERY_SCB flags on this scb then set the
- * flags we were called with, presumeably so aic7xxx_run_done_queue
- * can find this scb
- */
- scbp->flags = flags | (scbp->flags & SCB_RECOVERY_SCB);
- if (aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun,
- FALSE) == scbp->hscb->tag)
- {
- aic7xxx_index_busy_target(p, scbp->hscb->target_channel_lun,
- TRUE);
- }
- }
- found++;
- }
- else
- {
- p->qinfifo[p->qinfifonext++] = scbp->hscb->tag;
- }
- }
- /*
- * Now that we've done the work, clear out any left over commands in the
- * qinfifo and update the KERNEL_QINPOS down on the card.
- *
- * NOTE: This routine expect the sequencer to already be paused when
- * it is run....make sure it's that way!
- */
- qinpos = p->qinfifonext;
- while(qinpos != qintail)
- {
- p->qinfifo[qinpos++] = SCB_LIST_NULL;
- }
- if (p->features & AHC_QUEUE_REGS)
- aic_outb(p, p->qinfifonext, HNSCB_QOFF);
- else
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
-
- return (found);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_scb_on_qoutfifo
- *
- * Description:
- * Is the scb that was passed to us currently on the qoutfifo?
- *-F*************************************************************************/
-static int
-aic7xxx_scb_on_qoutfifo(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- int i=0;
-
- while(p->qoutfifo[(p->qoutfifonext + i) & 0xff ] != SCB_LIST_NULL)
- {
- if(p->qoutfifo[(p->qoutfifonext + i) & 0xff ] == scb->hscb->tag)
- return TRUE;
- else
- i++;
- }
- return FALSE;
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_reset_device
- *
- * Description:
- * The device at the given target/channel has been reset. Abort
- * all active and queued scbs for that target/channel. This function
- * need not worry about linked next pointers because if was a MSG_ABORT_TAG
- * then we had a tagged command (no linked next), if it was MSG_ABORT or
- * MSG_BUS_DEV_RESET then the device won't know about any commands any more
- * and no busy commands will exist, and if it was a bus reset, then nothing
- * knows about any linked next commands any more. In all cases, we don't
- * need to worry about the linked next or busy scb, we just need to clear
- * them.
- *-F*************************************************************************/
-static void
-aic7xxx_reset_device(struct aic7xxx_host *p, int target, int channel,
- int lun, unsigned char tag)
-{
- struct aic7xxx_scb *scbp, *prev_scbp;
- struct scsi_device *sd;
- unsigned char active_scb, tcl, scb_tag;
- int i = 0, init_lists = FALSE;
- struct aic_dev_data *aic_dev;
-
- /*
- * Restore this when we're done
- */
- active_scb = aic_inb(p, SCBPTR);
- scb_tag = aic_inb(p, SCB_TAG);
-
- if (aic7xxx_verbose & (VERBOSE_RESET_PROCESS | VERBOSE_ABORT_PROCESS))
- {
- printk(INFO_LEAD "Reset device, hardware_scb %d,\n",
- p->host_no, channel, target, lun, active_scb);
- printk(INFO_LEAD "Current scb %d, SEQADDR 0x%x, LASTPHASE "
- "0x%x\n",
- p->host_no, channel, target, lun, scb_tag,
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, LASTPHASE));
- printk(INFO_LEAD "SG_CACHEPTR 0x%x, SG_COUNT %d, SCSISIGI 0x%x\n",
- p->host_no, channel, target, lun,
- (p->features & AHC_ULTRA2) ? aic_inb(p, SG_CACHEPTR) : 0,
- aic_inb(p, SG_COUNT), aic_inb(p, SCSISIGI));
- printk(INFO_LEAD "SSTAT0 0x%x, SSTAT1 0x%x, SSTAT2 0x%x\n",
- p->host_no, channel, target, lun, aic_inb(p, SSTAT0),
- aic_inb(p, SSTAT1), aic_inb(p, SSTAT2));
- }
-
- /*
- * Deal with the busy target and linked next issues.
- */
- list_for_each_entry(aic_dev, &p->aic_devs, list)
- {
- if (aic7xxx_verbose & (VERBOSE_RESET_PROCESS | VERBOSE_ABORT_PROCESS))
- printk(INFO_LEAD "processing aic_dev %p\n", p->host_no, channel, target,
- lun, aic_dev);
- sd = aic_dev->SDptr;
-
- if((target != ALL_TARGETS && target != sd->id) ||
- (channel != ALL_CHANNELS && channel != sd->channel))
- continue;
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Cleaning up status information "
- "and delayed_scbs.\n", p->host_no, sd->channel, sd->id, sd->lun);
- aic_dev->flags &= ~BUS_DEVICE_RESET_PENDING;
- if ( tag == SCB_LIST_NULL )
- {
- aic_dev->dtr_pending = 0;
- aic_dev->needppr = aic_dev->needppr_copy;
- aic_dev->needsdtr = aic_dev->needsdtr_copy;
- aic_dev->needwdtr = aic_dev->needwdtr_copy;
- aic_dev->flags = DEVICE_PRINT_DTR;
- aic_dev->temp_q_depth = aic_dev->max_q_depth;
- }
- tcl = (sd->id << 4) | (sd->channel << 3) | sd->lun;
- if ( (aic7xxx_index_busy_target(p, tcl, FALSE) == tag) ||
- (tag == SCB_LIST_NULL) )
- aic7xxx_index_busy_target(p, tcl, /* unbusy */ TRUE);
- prev_scbp = NULL;
- scbp = aic_dev->delayed_scbs.head;
- while (scbp != NULL)
- {
- prev_scbp = scbp;
- scbp = scbp->q_next;
- if (aic7xxx_match_scb(p, prev_scbp, target, channel, lun, tag))
- {
- scbq_remove(&aic_dev->delayed_scbs, prev_scbp);
- if (prev_scbp->flags & SCB_WAITINGQ)
- {
- aic_dev->active_cmds++;
- p->activescbs++;
- }
- prev_scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ);
- prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
- }
- }
- }
-
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Cleaning QINFIFO.\n", p->host_no, channel, target, lun );
- aic7xxx_search_qinfifo(p, target, channel, lun, tag,
- SCB_RESET | SCB_QUEUED_FOR_DONE, /* requeue */ FALSE, NULL);
-
-/*
- * Search the waiting_scbs queue for matches, this catches any SCB_QUEUED
- * ABORT/RESET commands.
- */
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Cleaning waiting_scbs.\n", p->host_no, channel,
- target, lun );
- {
- struct aic7xxx_scb *scbp, *prev_scbp;
-
- prev_scbp = NULL;
- scbp = p->waiting_scbs.head;
- while (scbp != NULL)
- {
- prev_scbp = scbp;
- scbp = scbp->q_next;
- if (aic7xxx_match_scb(p, prev_scbp, target, channel, lun, tag))
- {
- scbq_remove(&p->waiting_scbs, prev_scbp);
- if (prev_scbp->flags & SCB_WAITINGQ)
- {
- AIC_DEV(prev_scbp->cmd)->active_cmds++;
- p->activescbs++;
- }
- prev_scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ);
- prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
- }
- }
- }
-
-
- /*
- * Search waiting for selection list.
- */
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Cleaning waiting for selection "
- "list.\n", p->host_no, channel, target, lun);
- {
- unsigned char next, prev, scb_index;
-
- next = aic_inb(p, WAITING_SCBH); /* Start at head of list. */
- prev = SCB_LIST_NULL;
- while (next != SCB_LIST_NULL)
- {
- aic_outb(p, next, SCBPTR);
- scb_index = aic_inb(p, SCB_TAG);
- if (scb_index >= p->scb_data->numscbs)
- {
- /*
- * No aic7xxx_verbose check here.....we want to see this since it
- * means either the kernel driver or the sequencer screwed things up
- */
- printk(WARN_LEAD "Waiting List inconsistency; SCB index=%d, "
- "numscbs=%d\n", p->host_no, channel, target, lun, scb_index,
- p->scb_data->numscbs);
- next = aic_inb(p, SCB_NEXT);
- aic7xxx_add_curscb_to_free_list(p);
- }
- else
- {
- scbp = p->scb_data->scb_array[scb_index];
- if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag))
- {
- next = aic7xxx_abort_waiting_scb(p, scbp, next, prev);
- if (scbp->flags & SCB_WAITINGQ)
- {
- AIC_DEV(scbp->cmd)->active_cmds++;
- p->activescbs++;
- }
- scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ);
- scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
- if (prev == SCB_LIST_NULL)
- {
- /*
- * This is either the first scb on the waiting list, or we
- * have already yanked the first and haven't left any behind.
- * Either way, we need to turn off the selection hardware if
- * it isn't already off.
- */
- aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ);
- aic_outb(p, CLRSELTIMEO, CLRSINT1);
- }
- }
- else
- {
- prev = next;
- next = aic_inb(p, SCB_NEXT);
- }
- }
- }
- }
-
- /*
- * Go through disconnected list and remove any entries we have queued
- * for completion, zeroing their control byte too.
- */
- if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
- printk(INFO_LEAD "Cleaning disconnected scbs "
- "list.\n", p->host_no, channel, target, lun);
- if (p->flags & AHC_PAGESCBS)
- {
- unsigned char next, prev, scb_index;
-
- next = aic_inb(p, DISCONNECTED_SCBH);
- prev = SCB_LIST_NULL;
- while (next != SCB_LIST_NULL)
- {
- aic_outb(p, next, SCBPTR);
- scb_index = aic_inb(p, SCB_TAG);
- if (scb_index > p->scb_data->numscbs)
- {
- printk(WARN_LEAD "Disconnected List inconsistency; SCB index=%d, "
- "numscbs=%d\n", p->host_no, channel, target, lun, scb_index,
- p->scb_data->numscbs);
- next = aic7xxx_rem_scb_from_disc_list(p, next, prev);
- }
- else
- {
- scbp = p->scb_data->scb_array[scb_index];
- if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag))
- {
- next = aic7xxx_rem_scb_from_disc_list(p, next, prev);
- if (scbp->flags & SCB_WAITINGQ)
- {
- AIC_DEV(scbp->cmd)->active_cmds++;
- p->activescbs++;
- }
- scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ);
- scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
- scbp->hscb->control = 0;
- }
- else
- {
- prev = next;
- next = aic_inb(p, SCB_NEXT);
- }
- }
- }
- }
-
- /*
- * Walk the free list making sure no entries on the free list have
- * a valid SCB_TAG value or SCB_CONTROL byte.
- */
- if (p->flags & AHC_PAGESCBS)
- {
- unsigned char next;
-
- next = aic_inb(p, FREE_SCBH);
- while (next != SCB_LIST_NULL)
- {
- aic_outb(p, next, SCBPTR);
- if (aic_inb(p, SCB_TAG) < p->scb_data->numscbs)
- {
- printk(WARN_LEAD "Free list inconsistency!.\n", p->host_no, channel,
- target, lun);
- init_lists = TRUE;
- next = SCB_LIST_NULL;
- }
- else
- {
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic_outb(p, 0, SCB_CONTROL);
- next = aic_inb(p, SCB_NEXT);
- }
- }
- }
-
- /*
- * Go through the hardware SCB array looking for commands that
- * were active but not on any list.
- */
- if (init_lists)
- {
- aic_outb(p, SCB_LIST_NULL, FREE_SCBH);
- aic_outb(p, SCB_LIST_NULL, WAITING_SCBH);
- aic_outb(p, SCB_LIST_NULL, DISCONNECTED_SCBH);
- }
- for (i = p->scb_data->maxhscbs - 1; i >= 0; i--)
- {
- unsigned char scbid;
-
- aic_outb(p, i, SCBPTR);
- if (init_lists)
- {
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic_outb(p, SCB_LIST_NULL, SCB_NEXT);
- aic_outb(p, 0, SCB_CONTROL);
- aic7xxx_add_curscb_to_free_list(p);
- }
- else
- {
- scbid = aic_inb(p, SCB_TAG);
- if (scbid < p->scb_data->numscbs)
- {
- scbp = p->scb_data->scb_array[scbid];
- if (aic7xxx_match_scb(p, scbp, target, channel, lun, tag))
- {
- aic_outb(p, 0, SCB_CONTROL);
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic7xxx_add_curscb_to_free_list(p);
- }
- }
- }
- }
-
- /*
- * Go through the entire SCB array now and look for commands for
- * for this target that are stillactive. These are other (most likely
- * tagged) commands that were disconnected when the reset occurred.
- * Any commands we find here we know this about, it wasn't on any queue,
- * it wasn't in the qinfifo, it wasn't in the disconnected or waiting
- * lists, so it really must have been a paged out SCB. In that case,
- * we shouldn't need to bother with updating any counters, just mark
- * the correct flags and go on.
- */
- for (i = 0; i < p->scb_data->numscbs; i++)
- {
- scbp = p->scb_data->scb_array[i];
- if ((scbp->flags & SCB_ACTIVE) &&
- aic7xxx_match_scb(p, scbp, target, channel, lun, tag) &&
- !aic7xxx_scb_on_qoutfifo(p, scbp))
- {
- if (scbp->flags & SCB_WAITINGQ)
- {
- scbq_remove(&p->waiting_scbs, scbp);
- scbq_remove(&AIC_DEV(scbp->cmd)->delayed_scbs, scbp);
- AIC_DEV(scbp->cmd)->active_cmds++;
- p->activescbs++;
- }
- scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
- scbp->flags &= ~(SCB_ACTIVE | SCB_WAITINGQ);
- }
- }
-
- aic_outb(p, active_scb, SCBPTR);
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_clear_intstat
- *
- * Description:
- * Clears the interrupt status.
- *-F*************************************************************************/
-static void
-aic7xxx_clear_intstat(struct aic7xxx_host *p)
-{
- /* Clear any interrupt conditions this may have caused. */
- aic_outb(p, CLRSELDO | CLRSELDI | CLRSELINGO, CLRSINT0);
- aic_outb(p, CLRSELTIMEO | CLRATNO | CLRSCSIRSTI | CLRBUSFREE | CLRSCSIPERR |
- CLRPHASECHG | CLRREQINIT, CLRSINT1);
- aic_outb(p, CLRSCSIINT | CLRSEQINT | CLRBRKADRINT | CLRPARERR, CLRINT);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_reset_current_bus
- *
- * Description:
- * Reset the current SCSI bus.
- *-F*************************************************************************/
-static void
-aic7xxx_reset_current_bus(struct aic7xxx_host *p)
-{
-
- /* Disable reset interrupts. */
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENSCSIRST, SIMODE1);
-
- /* Turn off the bus' current operations, after all, we shouldn't have any
- * valid commands left to cause a RSELI and SELO once we've tossed the
- * bus away with this reset, so we might as well shut down the sequencer
- * until the bus is restarted as opposed to saving the current settings
- * and restoring them (which makes no sense to me). */
-
- /* Turn on the bus reset. */
- aic_outb(p, aic_inb(p, SCSISEQ) | SCSIRSTO, SCSISEQ);
- while ( (aic_inb(p, SCSISEQ) & SCSIRSTO) == 0)
- mdelay(5);
-
- /*
- * Some of the new Ultra2 chipsets need a longer delay after a chip
- * reset than just the init setup creates, so we have to delay here
- * before we go into a reset in order to make the chips happy.
- */
- if (p->features & AHC_ULTRA2)
- mdelay(250);
- else
- mdelay(50);
-
- /* Turn off the bus reset. */
- aic_outb(p, 0, SCSISEQ);
- mdelay(10);
-
- aic7xxx_clear_intstat(p);
- /* Re-enable reset interrupts. */
- aic_outb(p, aic_inb(p, SIMODE1) | ENSCSIRST, SIMODE1);
-
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_reset_channel
- *
- * Description:
- * Reset the channel.
- *-F*************************************************************************/
-static void
-aic7xxx_reset_channel(struct aic7xxx_host *p, int channel, int initiate_reset)
-{
- unsigned long offset_min, offset_max;
- unsigned char sblkctl;
- int cur_channel;
-
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Reset channel called, %s initiate reset.\n",
- p->host_no, channel, -1, -1, (initiate_reset==TRUE) ? "will" : "won't" );
-
-
- if (channel == 1)
- {
- offset_min = 8;
- offset_max = 16;
- }
- else
- {
- if (p->features & AHC_TWIN)
- {
- /* Channel A */
- offset_min = 0;
- offset_max = 8;
- }
- else
- {
- offset_min = 0;
- if (p->features & AHC_WIDE)
- {
- offset_max = 16;
- }
- else
- {
- offset_max = 8;
- }
- }
- }
-
- while (offset_min < offset_max)
- {
- /*
- * Revert to async/narrow transfers until we renegotiate.
- */
- aic_outb(p, 0, TARG_SCSIRATE + offset_min);
- if (p->features & AHC_ULTRA2)
- {
- aic_outb(p, 0, TARG_OFFSET + offset_min);
- }
- offset_min++;
- }
-
- /*
- * Reset the bus and unpause/restart the controller
- */
- sblkctl = aic_inb(p, SBLKCTL);
- if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
- cur_channel = (sblkctl & SELBUSB) >> 3;
- else
- cur_channel = 0;
- if ( (cur_channel != channel) && (p->features & AHC_TWIN) )
- {
- /*
- * Case 1: Command for another bus is active
- */
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Stealthily resetting idle channel.\n", p->host_no,
- channel, -1, -1);
- /*
- * Stealthily reset the other bus without upsetting the current bus.
- */
- aic_outb(p, sblkctl ^ SELBUSB, SBLKCTL);
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENBUSFREE, SIMODE1);
- if (initiate_reset)
- {
- aic7xxx_reset_current_bus(p);
- }
- aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ);
- aic7xxx_clear_intstat(p);
- aic_outb(p, sblkctl, SBLKCTL);
- }
- else
- {
- /*
- * Case 2: A command from this bus is active or we're idle.
- */
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Resetting currently active channel.\n", p->host_no,
- channel, -1, -1);
- aic_outb(p, aic_inb(p, SIMODE1) & ~(ENBUSFREE|ENREQINIT),
- SIMODE1);
- p->flags &= ~AHC_HANDLING_REQINITS;
- p->msg_type = MSG_TYPE_NONE;
- p->msg_len = 0;
- if (initiate_reset)
- {
- aic7xxx_reset_current_bus(p);
- }
- aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ);
- aic7xxx_clear_intstat(p);
- }
- if (aic7xxx_verbose & VERBOSE_RESET_RETURN)
- printk(INFO_LEAD "Channel reset\n", p->host_no, channel, -1, -1);
- /*
- * Clean up all the state information for the pending transactions
- * on this bus.
- */
- aic7xxx_reset_device(p, ALL_TARGETS, channel, ALL_LUNS, SCB_LIST_NULL);
-
- if ( !(p->features & AHC_TWIN) )
- {
- restart_sequencer(p);
- }
-
- return;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_run_waiting_queues
- *
- * Description:
- * Scan the awaiting_scbs queue downloading and starting as many
- * scbs as we can.
- *-F*************************************************************************/
-static void
-aic7xxx_run_waiting_queues(struct aic7xxx_host *p)
-{
- struct aic7xxx_scb *scb;
- struct aic_dev_data *aic_dev;
- int sent;
-
-
- if (p->waiting_scbs.head == NULL)
- return;
-
- sent = 0;
-
- /*
- * First handle SCBs that are waiting but have been assigned a slot.
- */
- while ((scb = scbq_remove_head(&p->waiting_scbs)) != NULL)
- {
- aic_dev = scb->cmd->device->hostdata;
- if ( !scb->tag_action )
- {
- aic_dev->temp_q_depth = 1;
- }
- if ( aic_dev->active_cmds >= aic_dev->temp_q_depth)
- {
- scbq_insert_tail(&aic_dev->delayed_scbs, scb);
- }
- else
- {
- scb->flags &= ~SCB_WAITINGQ;
- aic_dev->active_cmds++;
- p->activescbs++;
- if ( !(scb->tag_action) )
- {
- aic7xxx_busy_target(p, scb);
- }
- p->qinfifo[p->qinfifonext++] = scb->hscb->tag;
- sent++;
- }
- }
- if (sent)
- {
- if (p->features & AHC_QUEUE_REGS)
- aic_outb(p, p->qinfifonext, HNSCB_QOFF);
- else
- {
- pause_sequencer(p);
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
- unpause_sequencer(p, FALSE);
- }
- if (p->activescbs > p->max_activescbs)
- p->max_activescbs = p->activescbs;
- }
-}
-
-#ifdef CONFIG_PCI
-
-#define DPE 0x80
-#define SSE 0x40
-#define RMA 0x20
-#define RTA 0x10
-#define STA 0x08
-#define DPR 0x01
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_pci_intr
- *
- * Description:
- * Check the scsi card for PCI errors and clear the interrupt
- *
- * NOTE: If you don't have this function and a 2940 card encounters
- * a PCI error condition, the machine will end up locked as the
- * interrupt handler gets slammed with non-stop PCI error interrupts
- *-F*************************************************************************/
-static void
-aic7xxx_pci_intr(struct aic7xxx_host *p)
-{
- unsigned char status1;
-
- pci_read_config_byte(p->pdev, PCI_STATUS + 1, &status1);
-
- if ( (status1 & DPE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Data Parity Error during PCI address or PCI write"
- "phase.\n", p->host_no, -1, -1, -1);
- if ( (status1 & SSE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Signal System Error Detected\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & RMA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Received a PCI Master Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & RTA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Received a PCI Target Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & STA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Signaled a PCI Target Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & DPR) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Data Parity Error has been reported via PCI pin "
- "PERR#\n", p->host_no, -1, -1, -1);
-
- pci_write_config_byte(p->pdev, PCI_STATUS + 1, status1);
- if (status1 & (DPR|RMA|RTA))
- aic_outb(p, CLRPARERR, CLRINT);
-
- if ( (aic7xxx_panic_on_abort) && (p->spurious_int > 500) )
- aic7xxx_panic_abort(p, NULL);
-
-}
-#endif /* CONFIG_PCI */
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_construct_ppr
- *
- * Description:
- * Build up a Parallel Protocol Request message for use with SCSI-3
- * devices.
- *-F*************************************************************************/
-static void
-aic7xxx_construct_ppr(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- p->msg_buf[p->msg_index++] = MSG_EXTENDED;
- p->msg_buf[p->msg_index++] = MSG_EXT_PPR_LEN;
- p->msg_buf[p->msg_index++] = MSG_EXT_PPR;
- p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.period;
- p->msg_buf[p->msg_index++] = 0;
- p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.offset;
- p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.width;
- p->msg_buf[p->msg_index++] = AIC_DEV(scb->cmd)->goal.options;
- p->msg_len += 8;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_construct_sdtr
- *
- * Description:
- * Constucts a synchronous data transfer message in the message
- * buffer on the sequencer.
- *-F*************************************************************************/
-static void
-aic7xxx_construct_sdtr(struct aic7xxx_host *p, unsigned char period,
- unsigned char offset)
-{
- p->msg_buf[p->msg_index++] = MSG_EXTENDED;
- p->msg_buf[p->msg_index++] = MSG_EXT_SDTR_LEN;
- p->msg_buf[p->msg_index++] = MSG_EXT_SDTR;
- p->msg_buf[p->msg_index++] = period;
- p->msg_buf[p->msg_index++] = offset;
- p->msg_len += 5;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_construct_wdtr
- *
- * Description:
- * Constucts a wide data transfer message in the message buffer
- * on the sequencer.
- *-F*************************************************************************/
-static void
-aic7xxx_construct_wdtr(struct aic7xxx_host *p, unsigned char bus_width)
-{
- p->msg_buf[p->msg_index++] = MSG_EXTENDED;
- p->msg_buf[p->msg_index++] = MSG_EXT_WDTR_LEN;
- p->msg_buf[p->msg_index++] = MSG_EXT_WDTR;
- p->msg_buf[p->msg_index++] = bus_width;
- p->msg_len += 4;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_calc_residual
- *
- * Description:
- * Calculate the residual data not yet transferred.
- *-F*************************************************************************/
-static void
-aic7xxx_calculate_residual (struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- struct aic7xxx_hwscb *hscb;
- struct scsi_cmnd *cmd;
- int actual, i;
-
- cmd = scb->cmd;
- hscb = scb->hscb;
-
- /*
- * Don't destroy valid residual information with
- * residual coming from a check sense operation.
- */
- if (((scb->hscb->control & DISCONNECTED) == 0) &&
- (scb->flags & SCB_SENSE) == 0)
- {
- /*
- * We had an underflow. At this time, there's only
- * one other driver that bothers to check for this,
- * and cmd->underflow seems to be set rather half-
- * heartedly in the higher-level SCSI code.
- */
- actual = scb->sg_length;
- for (i=1; i < hscb->residual_SG_segment_count; i++)
- {
- actual -= scb->sg_list[scb->sg_count - i].length;
- }
- actual -= (hscb->residual_data_count[2] << 16) |
- (hscb->residual_data_count[1] << 8) |
- hscb->residual_data_count[0];
-
- if (actual < cmd->underflow)
- {
- if (aic7xxx_verbose & VERBOSE_MINOR_ERROR)
- {
- printk(INFO_LEAD "Underflow - Wanted %u, %s %u, residual SG "
- "count %d.\n", p->host_no, CTL_OF_SCB(scb), cmd->underflow,
- (rq_data_dir(cmd->request) == WRITE) ? "wrote" : "read", actual,
- hscb->residual_SG_segment_count);
- printk(INFO_LEAD "status 0x%x.\n", p->host_no, CTL_OF_SCB(scb),
- hscb->target_status);
- }
- /*
- * In 2.4, only send back the residual information, don't flag this
- * as an error. Before 2.4 we had to flag this as an error because
- * the mid layer didn't check residual data counts to see if the
- * command needs retried.
- */
- scsi_set_resid(cmd, scb->sg_length - actual);
- aic7xxx_status(cmd) = hscb->target_status;
- }
- }
-
- /*
- * Clean out the residual information in the SCB for the
- * next consumer.
- */
- hscb->residual_data_count[2] = 0;
- hscb->residual_data_count[1] = 0;
- hscb->residual_data_count[0] = 0;
- hscb->residual_SG_segment_count = 0;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_handle_device_reset
- *
- * Description:
- * Interrupt handler for sequencer interrupts (SEQINT).
- *-F*************************************************************************/
-static void
-aic7xxx_handle_device_reset(struct aic7xxx_host *p, int target, int channel)
-{
- unsigned char tindex = target;
-
- tindex |= ((channel & 0x01) << 3);
-
- /*
- * Go back to async/narrow transfers and renegotiate.
- */
- aic_outb(p, 0, TARG_SCSIRATE + tindex);
- if (p->features & AHC_ULTRA2)
- aic_outb(p, 0, TARG_OFFSET + tindex);
- aic7xxx_reset_device(p, target, channel, ALL_LUNS, SCB_LIST_NULL);
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Bus Device Reset delivered.\n", p->host_no, channel,
- target, -1);
- aic7xxx_run_done_queue(p, /*complete*/ TRUE);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_handle_seqint
- *
- * Description:
- * Interrupt handler for sequencer interrupts (SEQINT).
- *-F*************************************************************************/
-static void
-aic7xxx_handle_seqint(struct aic7xxx_host *p, unsigned char intstat)
-{
- struct aic7xxx_scb *scb;
- struct aic_dev_data *aic_dev;
- unsigned short target_mask;
- unsigned char target, lun, tindex;
- unsigned char queue_flag = FALSE;
- char channel;
- int result;
-
- target = ((aic_inb(p, SAVED_TCL) >> 4) & 0x0f);
- if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
- channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
- else
- channel = 0;
- tindex = target + (channel << 3);
- lun = aic_inb(p, SAVED_TCL) & 0x07;
- target_mask = (0x01 << tindex);
-
- /*
- * Go ahead and clear the SEQINT now, that avoids any interrupt race
- * conditions later on in case we enable some other interrupt.
- */
- aic_outb(p, CLRSEQINT, CLRINT);
- switch (intstat & SEQINT_MASK)
- {
- case NO_MATCH:
- {
- aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP),
- SCSISEQ);
- printk(WARN_LEAD "No active SCB for reconnecting target - Issuing "
- "BUS DEVICE RESET.\n", p->host_no, channel, target, lun);
- printk(WARN_LEAD " SAVED_TCL=0x%x, ARG_1=0x%x, SEQADDR=0x%x\n",
- p->host_no, channel, target, lun,
- aic_inb(p, SAVED_TCL), aic_inb(p, ARG_1),
- (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0));
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, NULL);
- }
- break;
-
- case SEND_REJECT:
- {
- if (aic7xxx_verbose & VERBOSE_MINOR_ERROR)
- printk(INFO_LEAD "Rejecting unknown message (0x%x) received from "
- "target, SEQ_FLAGS=0x%x\n", p->host_no, channel, target, lun,
- aic_inb(p, ACCUM), aic_inb(p, SEQ_FLAGS));
- }
- break;
-
- case NO_IDENT:
- {
- /*
- * The reconnecting target either did not send an identify
- * message, or did, but we didn't find an SCB to match and
- * before it could respond to our ATN/abort, it hit a dataphase.
- * The only safe thing to do is to blow it away with a bus
- * reset.
- */
- if (aic7xxx_verbose & (VERBOSE_SEQINT | VERBOSE_RESET_MID))
- printk(INFO_LEAD "Target did not send an IDENTIFY message; "
- "LASTPHASE 0x%x, SAVED_TCL 0x%x\n", p->host_no, channel, target,
- lun, aic_inb(p, LASTPHASE), aic_inb(p, SAVED_TCL));
-
- aic7xxx_reset_channel(p, channel, /*initiate reset*/ TRUE);
- aic7xxx_run_done_queue(p, TRUE);
-
- }
- break;
-
- case BAD_PHASE:
- if (aic_inb(p, LASTPHASE) == P_BUSFREE)
- {
- if (aic7xxx_verbose & VERBOSE_SEQINT)
- printk(INFO_LEAD "Missed busfree.\n", p->host_no, channel,
- target, lun);
- restart_sequencer(p);
- }
- else
- {
- if (aic7xxx_verbose & VERBOSE_SEQINT)
- printk(INFO_LEAD "Unknown scsi bus phase, continuing\n", p->host_no,
- channel, target, lun);
- }
- break;
-
- case EXTENDED_MSG:
- {
- p->msg_type = MSG_TYPE_INITIATOR_MSGIN;
- p->msg_len = 0;
- p->msg_index = 0;
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "Enabling REQINITs for MSG_IN\n", p->host_no,
- channel, target, lun);
-#endif
-
- /*
- * To actually receive the message, simply turn on
- * REQINIT interrupts and let our interrupt handler
- * do the rest (REQINIT should already be true).
- */
- p->flags |= AHC_HANDLING_REQINITS;
- aic_outb(p, aic_inb(p, SIMODE1) | ENREQINIT, SIMODE1);
-
- /*
- * We don't want the sequencer unpaused yet so we return early
- */
- return;
- }
-
- case REJECT_MSG:
- {
- /*
- * What we care about here is if we had an outstanding SDTR
- * or WDTR message for this target. If we did, this is a
- * signal that the target is refusing negotiation.
- */
- unsigned char scb_index;
- unsigned char last_msg;
-
- scb_index = aic_inb(p, SCB_TAG);
- scb = p->scb_data->scb_array[scb_index];
- aic_dev = AIC_DEV(scb->cmd);
- last_msg = aic_inb(p, LAST_MSG);
-
- if ( (last_msg == MSG_IDENTIFYFLAG) &&
- (scb->tag_action) &&
- !(scb->flags & SCB_MSGOUT_BITS) )
- {
- if (scb->tag_action == MSG_ORDERED_Q_TAG)
- {
- /*
- * OK...the device seems able to accept tagged commands, but
- * not ordered tag commands, only simple tag commands. So, we
- * disable ordered tag commands and go on with life just like
- * normal.
- */
- scsi_adjust_queue_depth(scb->cmd->device, MSG_SIMPLE_TAG,
- scb->cmd->device->queue_depth);
- scb->tag_action = MSG_SIMPLE_Q_TAG;
- scb->hscb->control &= ~SCB_TAG_TYPE;
- scb->hscb->control |= MSG_SIMPLE_Q_TAG;
- aic_outb(p, scb->hscb->control, SCB_CONTROL);
- /*
- * OK..we set the tag type to simple tag command, now we re-assert
- * ATNO and hope this will take us into the identify phase again
- * so we can resend the tag type and info to the device.
- */
- aic_outb(p, MSG_IDENTIFYFLAG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
- }
- else if (scb->tag_action == MSG_SIMPLE_Q_TAG)
- {
- unsigned char i;
- struct aic7xxx_scb *scbp;
- int old_verbose;
- /*
- * Hmmmm....the device is flaking out on tagged commands.
- */
- scsi_adjust_queue_depth(scb->cmd->device, 0 /* untagged */,
- p->host->cmd_per_lun);
- aic_dev->max_q_depth = aic_dev->temp_q_depth = 1;
- /*
- * We set this command up as a bus device reset. However, we have
- * to clear the tag type as it's causing us problems. We shouldn't
- * have to worry about any other commands being active, since if
- * the device is refusing tagged commands, this should be the
- * first tagged command sent to the device, however, we do have
- * to worry about any other tagged commands that may already be
- * in the qinfifo. The easiest way to do this, is to issue a BDR,
- * send all the commands back to the mid level code, then let them
- * come back and get rebuilt as untagged commands.
- */
- scb->tag_action = 0;
- scb->hscb->control &= ~(TAG_ENB | SCB_TAG_TYPE);
- aic_outb(p, scb->hscb->control, SCB_CONTROL);
-
- old_verbose = aic7xxx_verbose;
- aic7xxx_verbose &= ~(VERBOSE_RESET|VERBOSE_ABORT);
- for (i=0; i < p->scb_data->numscbs; i++)
- {
- scbp = p->scb_data->scb_array[i];
- if ((scbp->flags & SCB_ACTIVE) && (scbp != scb))
- {
- if (aic7xxx_match_scb(p, scbp, target, channel, lun, i))
- {
- aic7xxx_reset_device(p, target, channel, lun, i);
- }
- }
- }
- aic7xxx_run_done_queue(p, TRUE);
- aic7xxx_verbose = old_verbose;
- /*
- * Wait until after the for loop to set the busy index since
- * aic7xxx_reset_device will clear the busy index during its
- * operation.
- */
- aic7xxx_busy_target(p, scb);
- printk(INFO_LEAD "Device is refusing tagged commands, using "
- "untagged I/O.\n", p->host_no, channel, target, lun);
- aic_outb(p, MSG_IDENTIFYFLAG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
- }
- }
- else if (scb->flags & SCB_MSGOUT_PPR)
- {
- /*
- * As per the draft specs, any device capable of supporting any of
- * the option values other than 0 are not allowed to reject the
- * PPR message. Instead, they must negotiate out what they do
- * support instead of rejecting our offering or else they cause
- * a parity error during msg_out phase to signal that they don't
- * like our settings.
- */
- aic_dev->needppr = aic_dev->needppr_copy = 0;
- aic7xxx_set_width(p, target, channel, lun, MSG_EXT_WDTR_BUS_8_BIT,
- (AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE), aic_dev);
- aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE,
- aic_dev);
- aic_dev->goal.options = aic_dev->dtr_pending = 0;
- scb->flags &= ~SCB_MSGOUT_BITS;
- if(aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Device is rejecting PPR messages, falling "
- "back.\n", p->host_no, channel, target, lun);
- }
- if ( aic_dev->goal.width )
- {
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 1;
- aic_dev->dtr_pending = 1;
- scb->flags |= SCB_MSGOUT_WDTR;
- }
- if ( aic_dev->goal.offset )
- {
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 1;
- if( !aic_dev->dtr_pending )
- {
- aic_dev->dtr_pending = 1;
- scb->flags |= SCB_MSGOUT_SDTR;
- }
- }
- if ( aic_dev->dtr_pending )
- {
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
- }
- }
- else if (scb->flags & SCB_MSGOUT_WDTR)
- {
- /*
- * note 8bit xfers and clear flag
- */
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 0;
- scb->flags &= ~SCB_MSGOUT_BITS;
- aic7xxx_set_width(p, target, channel, lun, MSG_EXT_WDTR_BUS_8_BIT,
- (AHC_TRANS_ACTIVE|AHC_TRANS_GOAL|AHC_TRANS_CUR), aic_dev);
- aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE,
- aic_dev);
- if(aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Device is rejecting WDTR messages, using "
- "narrow transfers.\n", p->host_no, channel, target, lun);
- }
- aic_dev->needsdtr = aic_dev->needsdtr_copy;
- }
- else if (scb->flags & SCB_MSGOUT_SDTR)
- {
- /*
- * note asynch xfers and clear flag
- */
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 0;
- scb->flags &= ~SCB_MSGOUT_BITS;
- aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0,
- (AHC_TRANS_CUR|AHC_TRANS_ACTIVE|AHC_TRANS_GOAL), aic_dev);
- if(aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Device is rejecting SDTR messages, using "
- "async transfers.\n", p->host_no, channel, target, lun);
- }
- }
- else if (aic7xxx_verbose & VERBOSE_SEQINT)
- {
- /*
- * Otherwise, we ignore it.
- */
- printk(INFO_LEAD "Received MESSAGE_REJECT for unknown cause. "
- "Ignoring.\n", p->host_no, channel, target, lun);
- }
- }
- break;
-
- case BAD_STATUS:
- {
- unsigned char scb_index;
- struct aic7xxx_hwscb *hscb;
- struct scsi_cmnd *cmd;
-
- /* The sequencer will notify us when a command has an error that
- * would be of interest to the kernel. This allows us to leave
- * the sequencer running in the common case of command completes
- * without error. The sequencer will have DMA'd the SCB back
- * up to us, so we can reference the drivers SCB array.
- *
- * Set the default return value to 0 indicating not to send
- * sense. The sense code will change this if needed and this
- * reduces code duplication.
- */
- aic_outb(p, 0, RETURN_1);
- scb_index = aic_inb(p, SCB_TAG);
- if (scb_index > p->scb_data->numscbs)
- {
- printk(WARN_LEAD "Invalid SCB during SEQINT 0x%02x, SCB_TAG %d.\n",
- p->host_no, channel, target, lun, intstat, scb_index);
- break;
- }
- scb = p->scb_data->scb_array[scb_index];
- hscb = scb->hscb;
-
- if (!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL))
- {
- printk(WARN_LEAD "Invalid SCB during SEQINT 0x%x, scb %d, flags 0x%x,"
- " cmd 0x%lx.\n", p->host_no, channel, target, lun, intstat,
- scb_index, scb->flags, (unsigned long) scb->cmd);
- }
- else
- {
- cmd = scb->cmd;
- aic_dev = AIC_DEV(scb->cmd);
- hscb->target_status = aic_inb(p, SCB_TARGET_STATUS);
- aic7xxx_status(cmd) = hscb->target_status;
-
- cmd->result = hscb->target_status;
-
- switch (status_byte(hscb->target_status))
- {
- case GOOD:
- if (aic7xxx_verbose & VERBOSE_SEQINT)
- printk(INFO_LEAD "Interrupted for status of GOOD???\n",
- p->host_no, CTL_OF_SCB(scb));
- break;
-
- case COMMAND_TERMINATED:
- case CHECK_CONDITION:
- if ( !(scb->flags & SCB_SENSE) )
- {
- /*
- * Send a sense command to the requesting target.
- * XXX - revisit this and get rid of the memcopys.
- */
- memcpy(scb->sense_cmd, &generic_sense[0],
- sizeof(generic_sense));
-
- scb->sense_cmd[1] = (cmd->device->lun << 5);
- scb->sense_cmd[4] = SCSI_SENSE_BUFFERSIZE;
-
- scb->sg_list[0].length =
- cpu_to_le32(SCSI_SENSE_BUFFERSIZE);
- scb->sg_list[0].address =
- cpu_to_le32(pci_map_single(p->pdev, cmd->sense_buffer,
- SCSI_SENSE_BUFFERSIZE,
- PCI_DMA_FROMDEVICE));
-
- /*
- * XXX - We should allow disconnection, but can't as it
- * might allow overlapped tagged commands.
- */
- /* hscb->control &= DISCENB; */
- hscb->control = 0;
- hscb->target_status = 0;
- hscb->SG_list_pointer =
- cpu_to_le32(SCB_DMA_ADDR(scb, scb->sg_list));
- hscb->SCSI_cmd_pointer =
- cpu_to_le32(SCB_DMA_ADDR(scb, scb->sense_cmd));
- hscb->data_count = scb->sg_list[0].length;
- hscb->data_pointer = scb->sg_list[0].address;
- hscb->SCSI_cmd_length = COMMAND_SIZE(scb->sense_cmd[0]);
- hscb->residual_SG_segment_count = 0;
- hscb->residual_data_count[0] = 0;
- hscb->residual_data_count[1] = 0;
- hscb->residual_data_count[2] = 0;
-
- scb->sg_count = hscb->SG_segment_count = 1;
- scb->sg_length = SCSI_SENSE_BUFFERSIZE;
- scb->tag_action = 0;
- scb->flags |= SCB_SENSE;
- /*
- * Ensure the target is busy since this will be an
- * an untagged request.
- */
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- if (scb->flags & SCB_MSGOUT_BITS)
- printk(INFO_LEAD "Requesting SENSE with %s\n", p->host_no,
- CTL_OF_SCB(scb), (scb->flags & SCB_MSGOUT_SDTR) ?
- "SDTR" : "WDTR");
- else
- printk(INFO_LEAD "Requesting SENSE, no MSG\n", p->host_no,
- CTL_OF_SCB(scb));
- }
-#endif
- aic7xxx_busy_target(p, scb);
- aic_outb(p, SEND_SENSE, RETURN_1);
- aic7xxx_error(cmd) = DID_OK;
- break;
- } /* first time sense, no errors */
- printk(INFO_LEAD "CHECK_CONDITION on REQUEST_SENSE, returning "
- "an error.\n", p->host_no, CTL_OF_SCB(scb));
- aic7xxx_error(cmd) = DID_ERROR;
- scb->flags &= ~SCB_SENSE;
- break;
-
- case QUEUE_FULL:
- queue_flag = TRUE; /* Mark that this is a QUEUE_FULL and */
- case BUSY: /* drop through to here */
- {
- struct aic7xxx_scb *next_scbp, *prev_scbp;
- unsigned char active_hscb, next_hscb, prev_hscb, scb_index;
- /*
- * We have to look three places for queued commands:
- * 1: p->waiting_scbs queue
- * 2: QINFIFO
- * 3: WAITING_SCBS list on card (for commands that are started
- * but haven't yet made it to the device)
- *
- * Of special note here is that commands on 2 or 3 above will
- * have already been marked as active, while commands on 1 will
- * not. The aic7xxx_done() function will want to unmark them
- * from active, so any commands we pull off of 1 need to
- * up the active count.
- */
- next_scbp = p->waiting_scbs.head;
- while ( next_scbp != NULL )
- {
- prev_scbp = next_scbp;
- next_scbp = next_scbp->q_next;
- if ( aic7xxx_match_scb(p, prev_scbp, target, channel, lun,
- SCB_LIST_NULL) )
- {
- scbq_remove(&p->waiting_scbs, prev_scbp);
- scb->flags = SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL;
- p->activescbs++;
- aic_dev->active_cmds++;
- }
- }
- aic7xxx_search_qinfifo(p, target, channel, lun,
- SCB_LIST_NULL, SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL,
- FALSE, NULL);
- next_scbp = NULL;
- active_hscb = aic_inb(p, SCBPTR);
- prev_hscb = next_hscb = scb_index = SCB_LIST_NULL;
- next_hscb = aic_inb(p, WAITING_SCBH);
- while (next_hscb != SCB_LIST_NULL)
- {
- aic_outb(p, next_hscb, SCBPTR);
- scb_index = aic_inb(p, SCB_TAG);
- if (scb_index < p->scb_data->numscbs)
- {
- next_scbp = p->scb_data->scb_array[scb_index];
- if (aic7xxx_match_scb(p, next_scbp, target, channel, lun,
- SCB_LIST_NULL) )
- {
- next_scbp->flags = SCB_QUEUED_FOR_DONE | SCB_QUEUE_FULL;
- next_hscb = aic_inb(p, SCB_NEXT);
- aic_outb(p, 0, SCB_CONTROL);
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic7xxx_add_curscb_to_free_list(p);
- if (prev_hscb == SCB_LIST_NULL)
- {
- /* We were first on the list,
- * so we kill the selection
- * hardware. Let the sequencer
- * re-init the hardware itself
- */
- aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ);
- aic_outb(p, CLRSELTIMEO, CLRSINT1);
- aic_outb(p, next_hscb, WAITING_SCBH);
- }
- else
- {
- aic_outb(p, prev_hscb, SCBPTR);
- aic_outb(p, next_hscb, SCB_NEXT);
- }
- }
- else
- {
- prev_hscb = next_hscb;
- next_hscb = aic_inb(p, SCB_NEXT);
- }
- } /* scb_index >= p->scb_data->numscbs */
- }
- aic_outb(p, active_hscb, SCBPTR);
- aic7xxx_run_done_queue(p, FALSE);
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if( (aic7xxx_verbose & VERBOSE_MINOR_ERROR) ||
- (aic7xxx_verbose > 0xffff) )
- {
- if (queue_flag)
- printk(INFO_LEAD "Queue full received; queue depth %d, "
- "active %d\n", p->host_no, CTL_OF_SCB(scb),
- aic_dev->max_q_depth, aic_dev->active_cmds);
- else
- printk(INFO_LEAD "Target busy\n", p->host_no, CTL_OF_SCB(scb));
- }
-#endif
- if (queue_flag)
- {
- int diff;
- result = scsi_track_queue_full(cmd->device,
- aic_dev->active_cmds);
- if ( result < 0 )
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- printk(INFO_LEAD "Tagged Command Queueing disabled.\n",
- p->host_no, CTL_OF_SCB(scb));
- diff = aic_dev->max_q_depth - p->host->cmd_per_lun;
- aic_dev->temp_q_depth = 1;
- aic_dev->max_q_depth = 1;
- }
- else if ( result > 0 )
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- printk(INFO_LEAD "Queue depth reduced to %d\n", p->host_no,
- CTL_OF_SCB(scb), result);
- diff = aic_dev->max_q_depth - result;
- aic_dev->max_q_depth = result;
- /* temp_q_depth could have been dropped to 1 for an untagged
- * command that might be coming up */
- if(aic_dev->temp_q_depth > result)
- aic_dev->temp_q_depth = result;
- }
- /* We should free up the no unused SCB entries. But, that's
- * a difficult thing to do because we use a direct indexed
- * array, so we can't just take any entries and free them,
- * we *have* to free the ones at the end of the array, and
- * they very well could be in use right now, which means
- * in order to do this right, we have to add a delayed
- * freeing mechanism tied into the scb_free() code area.
- * We'll add that later.
- */
- }
- break;
- }
-
- default:
- if (aic7xxx_verbose & VERBOSE_SEQINT)
- printk(INFO_LEAD "Unexpected target status 0x%x.\n", p->host_no,
- CTL_OF_SCB(scb), scb->hscb->target_status);
- if (!aic7xxx_error(cmd))
- {
- aic7xxx_error(cmd) = DID_RETRY_COMMAND;
- }
- break;
- } /* end switch */
- } /* end else of */
- }
- break;
-
- case AWAITING_MSG:
- {
- unsigned char scb_index, msg_out;
-
- scb_index = aic_inb(p, SCB_TAG);
- msg_out = aic_inb(p, MSG_OUT);
- scb = p->scb_data->scb_array[scb_index];
- aic_dev = AIC_DEV(scb->cmd);
- p->msg_index = p->msg_len = 0;
- /*
- * This SCB had a MK_MESSAGE set in its control byte informing
- * the sequencer that we wanted to send a special message to
- * this target.
- */
-
- if ( !(scb->flags & SCB_DEVICE_RESET) &&
- (msg_out == MSG_IDENTIFYFLAG) &&
- (scb->hscb->control & TAG_ENB) )
- {
- p->msg_buf[p->msg_index++] = scb->tag_action;
- p->msg_buf[p->msg_index++] = scb->hscb->tag;
- p->msg_len += 2;
- }
-
- if (scb->flags & SCB_DEVICE_RESET)
- {
- p->msg_buf[p->msg_index++] = MSG_BUS_DEV_RESET;
- p->msg_len++;
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Bus device reset mailed.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- else if (scb->flags & SCB_ABORT)
- {
- if (scb->tag_action)
- {
- p->msg_buf[p->msg_index++] = MSG_ABORT_TAG;
- }
- else
- {
- p->msg_buf[p->msg_index++] = MSG_ABORT;
- }
- p->msg_len++;
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "Abort message mailed.\n", p->host_no,
- CTL_OF_SCB(scb));
- }
- else if (scb->flags & SCB_MSGOUT_PPR)
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Sending PPR (%d/%d/%d/%d) message.\n",
- p->host_no, CTL_OF_SCB(scb),
- aic_dev->goal.period,
- aic_dev->goal.offset,
- aic_dev->goal.width,
- aic_dev->goal.options);
- }
- aic7xxx_construct_ppr(p, scb);
- }
- else if (scb->flags & SCB_MSGOUT_WDTR)
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Sending WDTR message.\n", p->host_no,
- CTL_OF_SCB(scb));
- }
- aic7xxx_construct_wdtr(p, aic_dev->goal.width);
- }
- else if (scb->flags & SCB_MSGOUT_SDTR)
- {
- unsigned int max_sync, period;
- unsigned char options = 0;
- /*
- * Now that the device is selected, use the bits in SBLKCTL and
- * SSTAT2 to determine the max sync rate for this device.
- */
- if (p->features & AHC_ULTRA2)
- {
- if ( (aic_inb(p, SBLKCTL) & ENAB40) &&
- !(aic_inb(p, SSTAT2) & EXP_ACTIVE) )
- {
- max_sync = AHC_SYNCRATE_ULTRA2;
- }
- else
- {
- max_sync = AHC_SYNCRATE_ULTRA;
- }
- }
- else if (p->features & AHC_ULTRA)
- {
- max_sync = AHC_SYNCRATE_ULTRA;
- }
- else
- {
- max_sync = AHC_SYNCRATE_FAST;
- }
- period = aic_dev->goal.period;
- aic7xxx_find_syncrate(p, &period, max_sync, &options);
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Sending SDTR %d/%d message.\n", p->host_no,
- CTL_OF_SCB(scb), period,
- aic_dev->goal.offset);
- }
- aic7xxx_construct_sdtr(p, period, aic_dev->goal.offset);
- }
- else
- {
- panic("aic7xxx: AWAITING_MSG for an SCB that does "
- "not have a waiting message.\n");
- }
- /*
- * We've set everything up to send our message, now to actually do
- * so we need to enable reqinit interrupts and let the interrupt
- * handler do the rest. We don't want to unpause the sequencer yet
- * though so we'll return early. We also have to make sure that
- * we clear the SEQINT *BEFORE* we set the REQINIT handler active
- * or else it's possible on VLB cards to lose the first REQINIT
- * interrupt. Edge triggered EISA cards could also lose this
- * interrupt, although PCI and level triggered cards should not
- * have this problem since they continually interrupt the kernel
- * until we take care of the situation.
- */
- scb->flags |= SCB_MSGOUT_SENT;
- p->msg_index = 0;
- p->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
- p->flags |= AHC_HANDLING_REQINITS;
- aic_outb(p, aic_inb(p, SIMODE1) | ENREQINIT, SIMODE1);
- return;
- }
- break;
-
- case DATA_OVERRUN:
- {
- unsigned char scb_index = aic_inb(p, SCB_TAG);
- unsigned char lastphase = aic_inb(p, LASTPHASE);
- unsigned int i;
-
- scb = (p->scb_data->scb_array[scb_index]);
- /*
- * XXX - What do we really want to do on an overrun? The
- * mid-level SCSI code should handle this, but for now,
- * we'll just indicate that the command should retried.
- * If we retrieved sense info on this target, then the
- * base SENSE info should have been saved prior to the
- * overrun error. In that case, we return DID_OK and let
- * the mid level code pick up on the sense info. Otherwise
- * we return DID_ERROR so the command will get retried.
- */
- if ( !(scb->flags & SCB_SENSE) )
- {
- printk(WARN_LEAD "Data overrun detected in %s phase, tag %d;\n",
- p->host_no, CTL_OF_SCB(scb),
- (lastphase == P_DATAIN) ? "Data-In" : "Data-Out", scb->hscb->tag);
- printk(KERN_WARNING " %s seen Data Phase. Length=%d, NumSGs=%d.\n",
- (aic_inb(p, SEQ_FLAGS) & DPHASE) ? "Have" : "Haven't",
- scb->sg_length, scb->sg_count);
- printk(KERN_WARNING " Raw SCSI Command: 0x");
- for (i = 0; i < scb->hscb->SCSI_cmd_length; i++)
- {
- printk("%02x ", scb->cmd->cmnd[i]);
- }
- printk("\n");
- if(aic7xxx_verbose > 0xffff)
- {
- for (i = 0; i < scb->sg_count; i++)
- {
- printk(KERN_WARNING " sg[%d] - Addr 0x%x : Length %d\n",
- i,
- le32_to_cpu(scb->sg_list[i].address),
- le32_to_cpu(scb->sg_list[i].length) );
- }
- }
- aic7xxx_error(scb->cmd) = DID_ERROR;
- }
- else
- printk(INFO_LEAD "Data Overrun during SEND_SENSE operation.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- break;
-
- case WIDE_RESIDUE:
- {
- unsigned char resid_sgcnt, index;
- unsigned char scb_index = aic_inb(p, SCB_TAG);
- unsigned int cur_addr, resid_dcnt;
- unsigned int native_addr, native_length, sg_addr;
- int i;
-
- if(scb_index > p->scb_data->numscbs)
- {
- printk(WARN_LEAD "invalid scb_index during WIDE_RESIDUE.\n",
- p->host_no, -1, -1, -1);
- /*
- * XXX: Add error handling here
- */
- break;
- }
- scb = p->scb_data->scb_array[scb_index];
- if(!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL))
- {
- printk(WARN_LEAD "invalid scb during WIDE_RESIDUE flags:0x%x "
- "scb->cmd:0x%lx\n", p->host_no, CTL_OF_SCB(scb),
- scb->flags, (unsigned long)scb->cmd);
- break;
- }
- if(aic7xxx_verbose & VERBOSE_MINOR_ERROR)
- printk(INFO_LEAD "Got WIDE_RESIDUE message, patching up data "
- "pointer.\n", p->host_no, CTL_OF_SCB(scb));
-
- /*
- * We have a valid scb to use on this WIDE_RESIDUE message, so
- * we need to walk the sg list looking for this particular sg
- * segment, then see if we happen to be at the very beginning of
- * the segment. If we are, then we have to back things up to
- * the previous segment. If not, then we simply need to remove
- * one byte from this segments address and add one to the byte
- * count.
- */
- cur_addr = aic_inb(p, SHADDR) | (aic_inb(p, SHADDR + 1) << 8) |
- (aic_inb(p, SHADDR + 2) << 16) | (aic_inb(p, SHADDR + 3) << 24);
- sg_addr = aic_inb(p, SG_COUNT + 1) | (aic_inb(p, SG_COUNT + 2) << 8) |
- (aic_inb(p, SG_COUNT + 3) << 16) | (aic_inb(p, SG_COUNT + 4) << 24);
- resid_sgcnt = aic_inb(p, SCB_RESID_SGCNT);
- resid_dcnt = aic_inb(p, SCB_RESID_DCNT) |
- (aic_inb(p, SCB_RESID_DCNT + 1) << 8) |
- (aic_inb(p, SCB_RESID_DCNT + 2) << 16);
- index = scb->sg_count - ((resid_sgcnt) ? resid_sgcnt : 1);
- native_addr = le32_to_cpu(scb->sg_list[index].address);
- native_length = le32_to_cpu(scb->sg_list[index].length);
- /*
- * If resid_dcnt == native_length, then we just loaded this SG
- * segment and we need to back it up one...
- */
- if(resid_dcnt == native_length)
- {
- if(index == 0)
- {
- /*
- * Oops, this isn't right, we can't back up to before the
- * beginning. This must be a bogus message, ignore it.
- */
- break;
- }
- resid_dcnt = 1;
- resid_sgcnt += 1;
- native_addr = le32_to_cpu(scb->sg_list[index - 1].address);
- native_length = le32_to_cpu(scb->sg_list[index - 1].length);
- cur_addr = native_addr + (native_length - 1);
- sg_addr -= sizeof(struct hw_scatterlist);
- }
- else
- {
- /*
- * resid_dcnt != native_length, so we are in the middle of a SG
- * element. Back it up one byte and leave the rest alone.
- */
- resid_dcnt += 1;
- cur_addr -= 1;
- }
-
- /*
- * Output the new addresses and counts to the right places on the
- * card.
- */
- aic_outb(p, resid_sgcnt, SG_COUNT);
- aic_outb(p, resid_sgcnt, SCB_RESID_SGCNT);
- aic_outb(p, sg_addr & 0xff, SG_COUNT + 1);
- aic_outb(p, (sg_addr >> 8) & 0xff, SG_COUNT + 2);
- aic_outb(p, (sg_addr >> 16) & 0xff, SG_COUNT + 3);
- aic_outb(p, (sg_addr >> 24) & 0xff, SG_COUNT + 4);
- aic_outb(p, resid_dcnt & 0xff, SCB_RESID_DCNT);
- aic_outb(p, (resid_dcnt >> 8) & 0xff, SCB_RESID_DCNT + 1);
- aic_outb(p, (resid_dcnt >> 16) & 0xff, SCB_RESID_DCNT + 2);
-
- /*
- * The sequencer actually wants to find the new address
- * in the SHADDR register set. On the Ultra2 and later controllers
- * this register set is readonly. In order to get the right number
- * into the register, you actually have to enter it in HADDR and then
- * use the PRELOADEN bit of DFCNTRL to drop it through from the
- * HADDR register to the SHADDR register. On non-Ultra2 controllers,
- * we simply write it direct.
- */
- if(p->features & AHC_ULTRA2)
- {
- /*
- * We might as well be accurate and drop both the resid_dcnt and
- * cur_addr into HCNT and HADDR and have both of them drop
- * through to the shadow layer together.
- */
- aic_outb(p, resid_dcnt & 0xff, HCNT);
- aic_outb(p, (resid_dcnt >> 8) & 0xff, HCNT + 1);
- aic_outb(p, (resid_dcnt >> 16) & 0xff, HCNT + 2);
- aic_outb(p, cur_addr & 0xff, HADDR);
- aic_outb(p, (cur_addr >> 8) & 0xff, HADDR + 1);
- aic_outb(p, (cur_addr >> 16) & 0xff, HADDR + 2);
- aic_outb(p, (cur_addr >> 24) & 0xff, HADDR + 3);
- aic_outb(p, aic_inb(p, DMAPARAMS) | PRELOADEN, DFCNTRL);
- udelay(1);
- aic_outb(p, aic_inb(p, DMAPARAMS) & ~(SCSIEN|HDMAEN), DFCNTRL);
- i=0;
- while(((aic_inb(p, DFCNTRL) & (SCSIEN|HDMAEN)) != 0) && (i++ < 1000))
- {
- udelay(1);
- }
- }
- else
- {
- aic_outb(p, cur_addr & 0xff, SHADDR);
- aic_outb(p, (cur_addr >> 8) & 0xff, SHADDR + 1);
- aic_outb(p, (cur_addr >> 16) & 0xff, SHADDR + 2);
- aic_outb(p, (cur_addr >> 24) & 0xff, SHADDR + 3);
- }
- }
- break;
-
- case SEQ_SG_FIXUP:
- {
- unsigned char scb_index, tmp;
- int sg_addr, sg_length;
-
- scb_index = aic_inb(p, SCB_TAG);
-
- if(scb_index > p->scb_data->numscbs)
- {
- printk(WARN_LEAD "invalid scb_index during SEQ_SG_FIXUP.\n",
- p->host_no, -1, -1, -1);
- printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 "
- "0x%x\n", p->host_no, -1, -1, -1,
- aic_inb(p, SCSISIGI),
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, SSTAT0), aic_inb(p, SSTAT1));
- printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n",
- p->host_no, -1, -1, -1, aic_inb(p, SG_CACHEPTR),
- aic_inb(p, SSTAT2), aic_inb(p, STCNT + 2) << 16 |
- aic_inb(p, STCNT + 1) << 8 | aic_inb(p, STCNT));
- /*
- * XXX: Add error handling here
- */
- break;
- }
- scb = p->scb_data->scb_array[scb_index];
- if(!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL))
- {
- printk(WARN_LEAD "invalid scb during SEQ_SG_FIXUP flags:0x%x "
- "scb->cmd:0x%p\n", p->host_no, CTL_OF_SCB(scb),
- scb->flags, scb->cmd);
- printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 "
- "0x%x\n", p->host_no, CTL_OF_SCB(scb),
- aic_inb(p, SCSISIGI),
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, SSTAT0), aic_inb(p, SSTAT1));
- printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n",
- p->host_no, CTL_OF_SCB(scb), aic_inb(p, SG_CACHEPTR),
- aic_inb(p, SSTAT2), aic_inb(p, STCNT + 2) << 16 |
- aic_inb(p, STCNT + 1) << 8 | aic_inb(p, STCNT));
- break;
- }
- if(aic7xxx_verbose & VERBOSE_MINOR_ERROR)
- printk(INFO_LEAD "Fixing up SG address for sequencer.\n", p->host_no,
- CTL_OF_SCB(scb));
- /*
- * Advance the SG pointer to the next element in the list
- */
- tmp = aic_inb(p, SG_NEXT);
- tmp += SG_SIZEOF;
- aic_outb(p, tmp, SG_NEXT);
- if( tmp < SG_SIZEOF )
- aic_outb(p, aic_inb(p, SG_NEXT + 1) + 1, SG_NEXT + 1);
- tmp = aic_inb(p, SG_COUNT) - 1;
- aic_outb(p, tmp, SG_COUNT);
- sg_addr = le32_to_cpu(scb->sg_list[scb->sg_count - tmp].address);
- sg_length = le32_to_cpu(scb->sg_list[scb->sg_count - tmp].length);
- /*
- * Now stuff the element we just advanced past down onto the
- * card so it can be stored in the residual area.
- */
- aic_outb(p, sg_addr & 0xff, HADDR);
- aic_outb(p, (sg_addr >> 8) & 0xff, HADDR + 1);
- aic_outb(p, (sg_addr >> 16) & 0xff, HADDR + 2);
- aic_outb(p, (sg_addr >> 24) & 0xff, HADDR + 3);
- aic_outb(p, sg_length & 0xff, HCNT);
- aic_outb(p, (sg_length >> 8) & 0xff, HCNT + 1);
- aic_outb(p, (sg_length >> 16) & 0xff, HCNT + 2);
- aic_outb(p, (tmp << 2) | ((tmp == 1) ? LAST_SEG : 0), SG_CACHEPTR);
- aic_outb(p, aic_inb(p, DMAPARAMS), DFCNTRL);
- while(aic_inb(p, SSTAT0) & SDONE) udelay(1);
- while(aic_inb(p, DFCNTRL) & (HDMAEN|SCSIEN)) aic_outb(p, 0, DFCNTRL);
- }
- break;
-
-#ifdef AIC7XXX_NOT_YET
- case TRACEPOINT2:
- {
- printk(INFO_LEAD "Tracepoint #2 reached.\n", p->host_no,
- channel, target, lun);
- }
- break;
-
- /* XXX Fill these in later */
- case MSG_BUFFER_BUSY:
- printk("aic7xxx: Message buffer busy.\n");
- break;
- case MSGIN_PHASEMIS:
- printk("aic7xxx: Message-in phasemis.\n");
- break;
-#endif
-
- default: /* unknown */
- printk(WARN_LEAD "Unknown SEQINT, INTSTAT 0x%x, SCSISIGI 0x%x.\n",
- p->host_no, channel, target, lun, intstat,
- aic_inb(p, SCSISIGI));
- break;
- }
-
- /*
- * Clear the sequencer interrupt and unpause the sequencer.
- */
- unpause_sequencer(p, /* unpause always */ TRUE);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_parse_msg
- *
- * Description:
- * Parses incoming messages into actions on behalf of
- * aic7xxx_handle_reqinit
- *_F*************************************************************************/
-static int
-aic7xxx_parse_msg(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- int reject, reply, done;
- unsigned char target_scsirate, tindex;
- unsigned short target_mask;
- unsigned char target, channel, lun;
- unsigned char bus_width, new_bus_width;
- unsigned char trans_options, new_trans_options;
- unsigned int period, new_period, offset, new_offset, maxsync;
- struct aic7xxx_syncrate *syncrate;
- struct aic_dev_data *aic_dev;
-
- target = scb->cmd->device->id;
- channel = scb->cmd->device->channel;
- lun = scb->cmd->device->lun;
- reply = reject = done = FALSE;
- tindex = TARGET_INDEX(scb->cmd);
- aic_dev = AIC_DEV(scb->cmd);
- target_scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
- target_mask = (0x01 << tindex);
-
- /*
- * Parse as much of the message as is available,
- * rejecting it if we don't support it. When
- * the entire message is available and has been
- * handled, return TRUE indicating that we have
- * parsed an entire message.
- */
-
- if (p->msg_buf[0] != MSG_EXTENDED)
- {
- reject = TRUE;
- }
-
- /*
- * Even if we are an Ultra3 card, don't allow Ultra3 sync rates when
- * using the SDTR messages. We need the PPR messages to enable the
- * higher speeds that include things like Dual Edge clocking.
- */
- if (p->features & AHC_ULTRA2)
- {
- if ( (aic_inb(p, SBLKCTL) & ENAB40) &&
- !(aic_inb(p, SSTAT2) & EXP_ACTIVE) )
- {
- if (p->features & AHC_ULTRA3)
- maxsync = AHC_SYNCRATE_ULTRA3;
- else
- maxsync = AHC_SYNCRATE_ULTRA2;
- }
- else
- {
- maxsync = AHC_SYNCRATE_ULTRA;
- }
- }
- else if (p->features & AHC_ULTRA)
- {
- maxsync = AHC_SYNCRATE_ULTRA;
- }
- else
- {
- maxsync = AHC_SYNCRATE_FAST;
- }
-
- /*
- * Just accept the length byte outright and perform
- * more checking once we know the message type.
- */
-
- if ( !reject && (p->msg_len > 2) )
- {
- switch(p->msg_buf[2])
- {
- case MSG_EXT_SDTR:
- {
-
- if (p->msg_buf[1] != MSG_EXT_SDTR_LEN)
- {
- reject = TRUE;
- break;
- }
-
- if (p->msg_len < (MSG_EXT_SDTR_LEN + 2))
- {
- break;
- }
-
- period = new_period = p->msg_buf[3];
- offset = new_offset = p->msg_buf[4];
- trans_options = new_trans_options = 0;
- bus_width = new_bus_width = target_scsirate & WIDEXFER;
-
- /*
- * If our current max syncrate is in the Ultra3 range, bump it back
- * down to Ultra2 since we can't negotiate DT transfers using SDTR
- */
- if(maxsync == AHC_SYNCRATE_ULTRA3)
- maxsync = AHC_SYNCRATE_ULTRA2;
-
- /*
- * We might have a device that is starting negotiation with us
- * before we can start up negotiation with it....be prepared to
- * have a device ask for a higher speed then we want to give it
- * in that case
- */
- if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR)) !=
- (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR) )
- {
- if (!(aic_dev->flags & DEVICE_DTR_SCANNED))
- {
- /*
- * We shouldn't get here unless this is a narrow drive, wide
- * devices should trigger this same section of code in the WDTR
- * handler first instead.
- */
- aic_dev->goal.width = MSG_EXT_WDTR_BUS_8_BIT;
- aic_dev->goal.options = 0;
- if(p->user[tindex].offset)
- {
- aic_dev->needsdtr_copy = 1;
- aic_dev->goal.period = max_t(unsigned char, 10,p->user[tindex].period);
- if(p->features & AHC_ULTRA2)
- {
- aic_dev->goal.offset = MAX_OFFSET_ULTRA2;
- }
- else
- {
- aic_dev->goal.offset = MAX_OFFSET_8BIT;
- }
- }
- else
- {
- aic_dev->needsdtr_copy = 0;
- aic_dev->goal.period = 255;
- aic_dev->goal.offset = 0;
- }
- aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR;
- }
- else if (aic_dev->needsdtr_copy == 0)
- {
- /*
- * This is a preemptive message from the target, we've already
- * scanned this target and set our options for it, and we
- * don't need a SDTR with this target (for whatever reason),
- * so reject this incoming SDTR
- */
- reject = TRUE;
- break;
- }
-
- /* The device is sending this message first and we have to reply */
- reply = TRUE;
-
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Received pre-emptive SDTR message from "
- "target.\n", p->host_no, CTL_OF_SCB(scb));
- }
- /*
- * Validate the values the device passed to us against our SEEPROM
- * settings. We don't have to do this if we aren't replying since
- * the device isn't allowed to send values greater than the ones
- * we first sent to it.
- */
- new_period = max_t(unsigned int, period, aic_dev->goal.period);
- new_offset = min_t(unsigned int, offset, aic_dev->goal.offset);
- }
-
- /*
- * Use our new_period, new_offset, bus_width, and card options
- * to determine the actual syncrate settings
- */
- syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync,
- &trans_options);
- aic7xxx_validate_offset(p, syncrate, &new_offset, bus_width);
-
- /*
- * Did we drop to async? If so, send a reply regardless of whether
- * or not we initiated this negotiation.
- */
- if ((new_offset == 0) && (new_offset != offset))
- {
- aic_dev->needsdtr_copy = 0;
- reply = TRUE;
- }
-
- /*
- * Did we start this, if not, or if we went too low and had to
- * go async, then send an SDTR back to the target
- */
- if(reply)
- {
- /* when sending a reply, make sure that the goal settings are
- * updated along with current and active since the code that
- * will actually build the message for the sequencer uses the
- * goal settings as its guidelines.
- */
- aic7xxx_set_syncrate(p, syncrate, target, channel, new_period,
- new_offset, trans_options,
- AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR,
- aic_dev);
- scb->flags &= ~SCB_MSGOUT_BITS;
- scb->flags |= SCB_MSGOUT_SDTR;
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
- }
- else
- {
- aic7xxx_set_syncrate(p, syncrate, target, channel, new_period,
- new_offset, trans_options,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev);
- aic_dev->needsdtr = 0;
- }
- done = TRUE;
- break;
- }
- case MSG_EXT_WDTR:
- {
-
- if (p->msg_buf[1] != MSG_EXT_WDTR_LEN)
- {
- reject = TRUE;
- break;
- }
-
- if (p->msg_len < (MSG_EXT_WDTR_LEN + 2))
- {
- break;
- }
-
- bus_width = new_bus_width = p->msg_buf[3];
-
- if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR)) ==
- (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR) )
- {
- switch(bus_width)
- {
- default:
- {
- reject = TRUE;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- ((aic_dev->flags & DEVICE_PRINT_DTR) ||
- (aic7xxx_verbose > 0xffff)) )
- {
- printk(INFO_LEAD "Requesting %d bit transfers, rejecting.\n",
- p->host_no, CTL_OF_SCB(scb), 8 * (0x01 << bus_width));
- }
- } /* We fall through on purpose */
- case MSG_EXT_WDTR_BUS_8_BIT:
- {
- aic_dev->goal.width = MSG_EXT_WDTR_BUS_8_BIT;
- aic_dev->needwdtr_copy &= ~target_mask;
- break;
- }
- case MSG_EXT_WDTR_BUS_16_BIT:
- {
- break;
- }
- }
- aic_dev->needwdtr = 0;
- aic7xxx_set_width(p, target, channel, lun, new_bus_width,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev);
- }
- else
- {
- if ( !(aic_dev->flags & DEVICE_DTR_SCANNED) )
- {
- /*
- * Well, we now know the WDTR and SYNC caps of this device since
- * it contacted us first, mark it as such and copy the user stuff
- * over to the goal stuff.
- */
- if( (p->features & AHC_WIDE) && p->user[tindex].width )
- {
- aic_dev->goal.width = MSG_EXT_WDTR_BUS_16_BIT;
- aic_dev->needwdtr_copy = 1;
- }
-
- /*
- * Devices that support DT transfers don't start WDTR requests
- */
- aic_dev->goal.options = 0;
-
- if(p->user[tindex].offset)
- {
- aic_dev->needsdtr_copy = 1;
- aic_dev->goal.period = max_t(unsigned char, 10, p->user[tindex].period);
- if(p->features & AHC_ULTRA2)
- {
- aic_dev->goal.offset = MAX_OFFSET_ULTRA2;
- }
- else if( aic_dev->goal.width )
- {
- aic_dev->goal.offset = MAX_OFFSET_16BIT;
- }
- else
- {
- aic_dev->goal.offset = MAX_OFFSET_8BIT;
- }
- } else {
- aic_dev->needsdtr_copy = 0;
- aic_dev->goal.period = 255;
- aic_dev->goal.offset = 0;
- }
-
- aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR;
- }
- else if (aic_dev->needwdtr_copy == 0)
- {
- /*
- * This is a preemptive message from the target, we've already
- * scanned this target and set our options for it, and we
- * don't need a WDTR with this target (for whatever reason),
- * so reject this incoming WDTR
- */
- reject = TRUE;
- break;
- }
-
- /* The device is sending this message first and we have to reply */
- reply = TRUE;
-
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Received pre-emptive WDTR message from "
- "target.\n", p->host_no, CTL_OF_SCB(scb));
- }
- switch(bus_width)
- {
- case MSG_EXT_WDTR_BUS_16_BIT:
- {
- if ( (p->features & AHC_WIDE) &&
- (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT) )
- {
- new_bus_width = MSG_EXT_WDTR_BUS_16_BIT;
- break;
- }
- } /* Fall through if we aren't a wide card */
- default:
- case MSG_EXT_WDTR_BUS_8_BIT:
- {
- aic_dev->needwdtr_copy = 0;
- new_bus_width = MSG_EXT_WDTR_BUS_8_BIT;
- break;
- }
- }
- scb->flags &= ~SCB_MSGOUT_BITS;
- scb->flags |= SCB_MSGOUT_WDTR;
- aic_dev->needwdtr = 0;
- if(aic_dev->dtr_pending == 0)
- {
- /* there is no other command with SCB_DTR_SCB already set that will
- * trigger the release of the dtr_pending bit. Both set the bit
- * and set scb->flags |= SCB_DTR_SCB
- */
- aic_dev->dtr_pending = 1;
- scb->flags |= SCB_DTR_SCB;
- }
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
- /* when sending a reply, make sure that the goal settings are
- * updated along with current and active since the code that
- * will actually build the message for the sequencer uses the
- * goal settings as its guidelines.
- */
- aic7xxx_set_width(p, target, channel, lun, new_bus_width,
- AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR,
- aic_dev);
- }
-
- /*
- * By virtue of the SCSI spec, a WDTR message negates any existing
- * SDTR negotiations. So, even if needsdtr isn't marked for this
- * device, we still have to do a new SDTR message if the device
- * supports SDTR at all. Therefore, we check needsdtr_copy instead
- * of needstr.
- */
- aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0, 0,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE,
- aic_dev);
- aic_dev->needsdtr = aic_dev->needsdtr_copy;
- done = TRUE;
- break;
- }
- case MSG_EXT_PPR:
- {
-
- if (p->msg_buf[1] != MSG_EXT_PPR_LEN)
- {
- reject = TRUE;
- break;
- }
-
- if (p->msg_len < (MSG_EXT_PPR_LEN + 2))
- {
- break;
- }
-
- period = new_period = p->msg_buf[3];
- offset = new_offset = p->msg_buf[5];
- bus_width = new_bus_width = p->msg_buf[6];
- trans_options = new_trans_options = p->msg_buf[7] & 0xf;
-
- if(aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Parsing PPR message (%d/%d/%d/%d)\n",
- p->host_no, CTL_OF_SCB(scb), period, offset, bus_width,
- trans_options);
- }
-
- /*
- * We might have a device that is starting negotiation with us
- * before we can start up negotiation with it....be prepared to
- * have a device ask for a higher speed then we want to give it
- * in that case
- */
- if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_PPR)) !=
- (SCB_MSGOUT_SENT|SCB_MSGOUT_PPR) )
- {
- /* Have we scanned the device yet? */
- if (!(aic_dev->flags & DEVICE_DTR_SCANNED))
- {
- /* The device is electing to use PPR messages, so we will too until
- * we know better */
- aic_dev->needppr = aic_dev->needppr_copy = 1;
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 0;
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 0;
-
- /* We know the device is SCSI-3 compliant due to PPR */
- aic_dev->flags |= DEVICE_SCSI_3;
-
- /*
- * Not only is the device starting this up, but it also hasn't
- * been scanned yet, so this would likely be our TUR or our
- * INQUIRY command at scan time, so we need to use the
- * settings from the SEEPROM if they existed. Of course, even
- * if we didn't find a SEEPROM, we stuffed default values into
- * the user settings anyway, so use those in all cases.
- */
- aic_dev->goal.width = p->user[tindex].width;
- if(p->user[tindex].offset)
- {
- aic_dev->goal.period = p->user[tindex].period;
- aic_dev->goal.options = p->user[tindex].options;
- if(p->features & AHC_ULTRA2)
- {
- aic_dev->goal.offset = MAX_OFFSET_ULTRA2;
- }
- else if( aic_dev->goal.width &&
- (bus_width == MSG_EXT_WDTR_BUS_16_BIT) &&
- p->features & AHC_WIDE )
- {
- aic_dev->goal.offset = MAX_OFFSET_16BIT;
- }
- else
- {
- aic_dev->goal.offset = MAX_OFFSET_8BIT;
- }
- }
- else
- {
- aic_dev->goal.period = 255;
- aic_dev->goal.offset = 0;
- aic_dev->goal.options = 0;
- }
- aic_dev->flags |= DEVICE_DTR_SCANNED | DEVICE_PRINT_DTR;
- }
- else if (aic_dev->needppr_copy == 0)
- {
- /*
- * This is a preemptive message from the target, we've already
- * scanned this target and set our options for it, and we
- * don't need a PPR with this target (for whatever reason),
- * so reject this incoming PPR
- */
- reject = TRUE;
- break;
- }
-
- /* The device is sending this message first and we have to reply */
- reply = TRUE;
-
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Received pre-emptive PPR message from "
- "target.\n", p->host_no, CTL_OF_SCB(scb));
- }
-
- }
-
- switch(bus_width)
- {
- case MSG_EXT_WDTR_BUS_16_BIT:
- {
- if ( (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT) &&
- p->features & AHC_WIDE)
- {
- break;
- }
- }
- default:
- {
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
- ((aic_dev->flags & DEVICE_PRINT_DTR) ||
- (aic7xxx_verbose > 0xffff)) )
- {
- reply = TRUE;
- printk(INFO_LEAD "Requesting %d bit transfers, rejecting.\n",
- p->host_no, CTL_OF_SCB(scb), 8 * (0x01 << bus_width));
- }
- } /* We fall through on purpose */
- case MSG_EXT_WDTR_BUS_8_BIT:
- {
- /*
- * According to the spec, if we aren't wide, we also can't be
- * Dual Edge so clear the options byte
- */
- new_trans_options = 0;
- new_bus_width = MSG_EXT_WDTR_BUS_8_BIT;
- break;
- }
- }
-
- if(reply)
- {
- /* when sending a reply, make sure that the goal settings are
- * updated along with current and active since the code that
- * will actually build the message for the sequencer uses the
- * goal settings as its guidelines.
- */
- aic7xxx_set_width(p, target, channel, lun, new_bus_width,
- AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR,
- aic_dev);
- syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync,
- &new_trans_options);
- aic7xxx_validate_offset(p, syncrate, &new_offset, new_bus_width);
- aic7xxx_set_syncrate(p, syncrate, target, channel, new_period,
- new_offset, new_trans_options,
- AHC_TRANS_GOAL|AHC_TRANS_ACTIVE|AHC_TRANS_CUR,
- aic_dev);
- }
- else
- {
- aic7xxx_set_width(p, target, channel, lun, new_bus_width,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev);
- syncrate = aic7xxx_find_syncrate(p, &new_period, maxsync,
- &new_trans_options);
- aic7xxx_validate_offset(p, syncrate, &new_offset, new_bus_width);
- aic7xxx_set_syncrate(p, syncrate, target, channel, new_period,
- new_offset, new_trans_options,
- AHC_TRANS_ACTIVE|AHC_TRANS_CUR, aic_dev);
- }
-
- /*
- * As it turns out, if we don't *have* to have PPR messages, then
- * configure ourselves not to use them since that makes some
- * external drive chassis work (those chassis can't parse PPR
- * messages and they mangle the SCSI bus until you send a WDTR
- * and SDTR that they can understand).
- */
- if(new_trans_options == 0)
- {
- aic_dev->needppr = aic_dev->needppr_copy = 0;
- if(new_offset)
- {
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 1;
- }
- if (new_bus_width)
- {
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 1;
- }
- }
-
- if((new_offset == 0) && (offset != 0))
- {
- /*
- * Oops, the syncrate went to low for this card and we fell off
- * to async (should never happen with a device that uses PPR
- * messages, but have to be complete)
- */
- reply = TRUE;
- }
-
- if(reply)
- {
- scb->flags &= ~SCB_MSGOUT_BITS;
- scb->flags |= SCB_MSGOUT_PPR;
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
- }
- else
- {
- aic_dev->needppr = 0;
- }
- done = TRUE;
- break;
- }
- default:
- {
- reject = TRUE;
- break;
- }
- } /* end of switch(p->msg_type) */
- } /* end of if (!reject && (p->msg_len > 2)) */
-
- if (!reply && reject)
- {
- aic_outb(p, MSG_MESSAGE_REJECT, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
- done = TRUE;
- }
- return(done);
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_handle_reqinit
- *
- * Description:
- * Interrupt handler for REQINIT interrupts (used to transfer messages to
- * and from devices).
- *_F*************************************************************************/
-static void
-aic7xxx_handle_reqinit(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
-{
- unsigned char lastbyte;
- unsigned char phasemis;
- int done = FALSE;
-
- switch(p->msg_type)
- {
- case MSG_TYPE_INITIATOR_MSGOUT:
- {
- if (p->msg_len == 0)
- panic("aic7xxx: REQINIT with no active message!\n");
-
- lastbyte = (p->msg_index == (p->msg_len - 1));
- phasemis = ( aic_inb(p, SCSISIGI) & PHASE_MASK) != P_MESGOUT;
-
- if (lastbyte || phasemis)
- {
- /* Time to end the message */
- p->msg_len = 0;
- p->msg_type = MSG_TYPE_NONE;
- /*
- * NOTE-TO-MYSELF: If you clear the REQINIT after you
- * disable REQINITs, then cases of REJECT_MSG stop working
- * and hang the bus
- */
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- p->flags &= ~AHC_HANDLING_REQINITS;
-
- if (phasemis == 0)
- {
- aic_outb(p, p->msg_buf[p->msg_index], SINDEX);
- aic_outb(p, 0, RETURN_1);
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "Completed sending of REQINIT message.\n",
- p->host_no, CTL_OF_SCB(scb));
-#endif
- }
- else
- {
- aic_outb(p, MSGOUT_PHASEMIS, RETURN_1);
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "PHASEMIS while sending REQINIT message.\n",
- p->host_no, CTL_OF_SCB(scb));
-#endif
- }
- unpause_sequencer(p, TRUE);
- }
- else
- {
- /*
- * Present the byte on the bus (clearing REQINIT) but don't
- * unpause the sequencer.
- */
- aic_outb(p, CLRREQINIT, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- aic_outb(p, p->msg_buf[p->msg_index++], SCSIDATL);
- }
- break;
- }
- case MSG_TYPE_INITIATOR_MSGIN:
- {
- phasemis = ( aic_inb(p, SCSISIGI) & PHASE_MASK ) != P_MESGIN;
-
- if (phasemis == 0)
- {
- p->msg_len++;
- /* Pull the byte in without acking it */
- p->msg_buf[p->msg_index] = aic_inb(p, SCSIBUSL);
- done = aic7xxx_parse_msg(p, scb);
- /* Ack the byte */
- aic_outb(p, CLRREQINIT, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- aic_inb(p, SCSIDATL);
- p->msg_index++;
- }
- if (phasemis || done)
- {
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- {
- if (phasemis)
- printk(INFO_LEAD "PHASEMIS while receiving REQINIT message.\n",
- p->host_no, CTL_OF_SCB(scb));
- else
- printk(INFO_LEAD "Completed receipt of REQINIT message.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
-#endif
- /* Time to end our message session */
- p->msg_len = 0;
- p->msg_type = MSG_TYPE_NONE;
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- p->flags &= ~AHC_HANDLING_REQINITS;
- unpause_sequencer(p, TRUE);
- }
- break;
- }
- default:
- {
- panic("aic7xxx: Unknown REQINIT message type.\n");
- break;
- }
- } /* End of switch(p->msg_type) */
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_handle_scsiint
- *
- * Description:
- * Interrupt handler for SCSI interrupts (SCSIINT).
- *-F*************************************************************************/
-static void
-aic7xxx_handle_scsiint(struct aic7xxx_host *p, unsigned char intstat)
-{
- unsigned char scb_index;
- unsigned char status;
- struct aic7xxx_scb *scb;
- struct aic_dev_data *aic_dev;
-
- scb_index = aic_inb(p, SCB_TAG);
- status = aic_inb(p, SSTAT1);
-
- if (scb_index < p->scb_data->numscbs)
- {
- scb = p->scb_data->scb_array[scb_index];
- if ((scb->flags & SCB_ACTIVE) == 0)
- {
- scb = NULL;
- }
- }
- else
- {
- scb = NULL;
- }
-
-
- if ((status & SCSIRSTI) != 0)
- {
- int channel;
-
- if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
- channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
- else
- channel = 0;
-
- if (aic7xxx_verbose & VERBOSE_RESET)
- printk(WARN_LEAD "Someone else reset the channel!!\n",
- p->host_no, channel, -1, -1);
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, NULL);
- /*
- * Go through and abort all commands for the channel, but do not
- * reset the channel again.
- */
- aic7xxx_reset_channel(p, channel, /* Initiate Reset */ FALSE);
- aic7xxx_run_done_queue(p, TRUE);
- scb = NULL;
- }
- else if ( ((status & BUSFREE) != 0) && ((status & SELTO) == 0) )
- {
- /*
- * First look at what phase we were last in. If it's message-out,
- * chances are pretty good that the bus free was in response to
- * one of our abort requests.
- */
- unsigned char lastphase = aic_inb(p, LASTPHASE);
- unsigned char saved_tcl = aic_inb(p, SAVED_TCL);
- unsigned char target = (saved_tcl >> 4) & 0x0F;
- int channel;
- int printerror = TRUE;
-
- if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
- channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
- else
- channel = 0;
-
- aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP),
- SCSISEQ);
- if (lastphase == P_MESGOUT)
- {
- unsigned char message;
-
- message = aic_inb(p, SINDEX);
-
- if ((message == MSG_ABORT) || (message == MSG_ABORT_TAG))
- {
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "SCB %d abort delivered.\n", p->host_no,
- CTL_OF_SCB(scb), scb->hscb->tag);
- aic7xxx_reset_device(p, target, channel, ALL_LUNS,
- (message == MSG_ABORT) ? SCB_LIST_NULL : scb->hscb->tag );
- aic7xxx_run_done_queue(p, TRUE);
- scb = NULL;
- printerror = 0;
- }
- else if (message == MSG_BUS_DEV_RESET)
- {
- aic7xxx_handle_device_reset(p, target, channel);
- scb = NULL;
- printerror = 0;
- }
- }
- if ( (scb != NULL) && (scb->flags & SCB_DTR_SCB) )
- {
- /*
- * Hmmm...error during a negotiation command. Either we have a
- * borken bus, or the device doesn't like our negotiation message.
- * Since we check the INQUIRY data of a device before sending it
- * negotiation messages, assume the bus is borken for whatever
- * reason. Complete the command.
- */
- printerror = 0;
- aic7xxx_reset_device(p, target, channel, ALL_LUNS, scb->hscb->tag);
- aic7xxx_run_done_queue(p, TRUE);
- scb = NULL;
- }
- if (printerror != 0)
- {
- if (scb != NULL)
- {
- unsigned char tag;
-
- if ((scb->hscb->control & TAG_ENB) != 0)
- {
- tag = scb->hscb->tag;
- }
- else
- {
- tag = SCB_LIST_NULL;
- }
- aic7xxx_reset_device(p, target, channel, ALL_LUNS, tag);
- aic7xxx_run_done_queue(p, TRUE);
- }
- else
- {
- aic7xxx_reset_device(p, target, channel, ALL_LUNS, SCB_LIST_NULL);
- aic7xxx_run_done_queue(p, TRUE);
- }
- printk(INFO_LEAD "Unexpected busfree, LASTPHASE = 0x%x, "
- "SEQADDR = 0x%x\n", p->host_no, channel, target, -1, lastphase,
- (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0));
- scb = NULL;
- }
- aic_outb(p, MSG_NOOP, MSG_OUT);
- aic_outb(p, aic_inb(p, SIMODE1) & ~(ENBUSFREE|ENREQINIT),
- SIMODE1);
- p->flags &= ~AHC_HANDLING_REQINITS;
- aic_outb(p, CLRBUSFREE, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- restart_sequencer(p);
- unpause_sequencer(p, TRUE);
- }
- else if ((status & SELTO) != 0)
- {
- unsigned char scbptr;
- unsigned char nextscb;
- struct scsi_cmnd *cmd;
-
- scbptr = aic_inb(p, WAITING_SCBH);
- if (scbptr > p->scb_data->maxhscbs)
- {
- /*
- * I'm still trying to track down exactly how this happens, but until
- * I find it, this code will make sure we aren't passing bogus values
- * into the SCBPTR register, even if that register will just wrap
- * things around, we still don't like having out of range variables.
- *
- * NOTE: Don't check the aic7xxx_verbose variable, I want this message
- * to always be displayed.
- */
- printk(INFO_LEAD "Invalid WAITING_SCBH value %d, improvising.\n",
- p->host_no, -1, -1, -1, scbptr);
- if (p->scb_data->maxhscbs > 4)
- scbptr &= (p->scb_data->maxhscbs - 1);
- else
- scbptr &= 0x03;
- }
- aic_outb(p, scbptr, SCBPTR);
- scb_index = aic_inb(p, SCB_TAG);
-
- scb = NULL;
- if (scb_index < p->scb_data->numscbs)
- {
- scb = p->scb_data->scb_array[scb_index];
- if ((scb->flags & SCB_ACTIVE) == 0)
- {
- scb = NULL;
- }
- }
- if (scb == NULL)
- {
- printk(WARN_LEAD "Referenced SCB %d not valid during SELTO.\n",
- p->host_no, -1, -1, -1, scb_index);
- printk(KERN_WARNING " SCSISEQ = 0x%x SEQADDR = 0x%x SSTAT0 = 0x%x "
- "SSTAT1 = 0x%x\n", aic_inb(p, SCSISEQ),
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, SSTAT0), aic_inb(p, SSTAT1));
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, NULL);
- }
- else
- {
- cmd = scb->cmd;
- cmd->result = (DID_TIME_OUT << 16);
-
- /*
- * Clear out this hardware SCB
- */
- aic_outb(p, 0, SCB_CONTROL);
-
- /*
- * Clear out a few values in the card that are in an undetermined
- * state.
- */
- aic_outb(p, MSG_NOOP, MSG_OUT);
-
- /*
- * Shift the waiting for selection queue forward
- */
- nextscb = aic_inb(p, SCB_NEXT);
- aic_outb(p, nextscb, WAITING_SCBH);
-
- /*
- * Put this SCB back on the free list.
- */
- aic7xxx_add_curscb_to_free_list(p);
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "Selection Timeout.\n", p->host_no, CTL_OF_SCB(scb));
-#endif
- if (scb->flags & SCB_QUEUED_ABORT)
- {
- /*
- * We know that this particular SCB had to be the queued abort since
- * the disconnected SCB would have gotten a reconnect instead.
- * What we need to do then is to let the command timeout again so
- * we get a reset since this abort just failed.
- */
- cmd->result = 0;
- scb = NULL;
- }
- }
- /*
- * Keep the sequencer from trying to restart any selections
- */
- aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ);
- /*
- * Make sure the data bits on the bus are released
- * Don't do this on 7770 chipsets, it makes them give us
- * a BRKADDRINT and kills the card.
- */
- if( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI )
- aic_outb(p, 0, SCSIBUSL);
-
- /*
- * Delay for the selection timeout delay period then stop the selection
- */
- udelay(301);
- aic_outb(p, CLRSELINGO, CLRSINT0);
- /*
- * Clear out all the interrupt status bits
- */
- aic_outb(p, aic_inb(p, SIMODE1) & ~(ENREQINIT|ENBUSFREE), SIMODE1);
- p->flags &= ~AHC_HANDLING_REQINITS;
- aic_outb(p, CLRSELTIMEO | CLRBUSFREE, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- /*
- * Restarting the sequencer will stop the selection and make sure devices
- * are allowed to reselect in.
- */
- restart_sequencer(p);
- unpause_sequencer(p, TRUE);
- }
- else if (scb == NULL)
- {
- printk(WARN_LEAD "aic7xxx_isr - referenced scb not valid "
- "during scsiint 0x%x scb(%d)\n"
- " SIMODE0 0x%x, SIMODE1 0x%x, SSTAT0 0x%x, SEQADDR 0x%x\n",
- p->host_no, -1, -1, -1, status, scb_index, aic_inb(p, SIMODE0),
- aic_inb(p, SIMODE1), aic_inb(p, SSTAT0),
- (aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0));
- /*
- * Turn off the interrupt and set status to zero, so that it
- * falls through the rest of the SCSIINT code.
- */
- aic_outb(p, status, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- unpause_sequencer(p, /* unpause always */ TRUE);
- scb = NULL;
- }
- else if (status & SCSIPERR)
- {
- /*
- * Determine the bus phase and queue an appropriate message.
- */
- char *phase;
- struct scsi_cmnd *cmd;
- unsigned char mesg_out = MSG_NOOP;
- unsigned char lastphase = aic_inb(p, LASTPHASE);
- unsigned char sstat2 = aic_inb(p, SSTAT2);
-
- cmd = scb->cmd;
- switch (lastphase)
- {
- case P_DATAOUT:
- phase = "Data-Out";
- break;
- case P_DATAIN:
- phase = "Data-In";
- mesg_out = MSG_INITIATOR_DET_ERR;
- break;
- case P_COMMAND:
- phase = "Command";
- break;
- case P_MESGOUT:
- phase = "Message-Out";
- break;
- case P_STATUS:
- phase = "Status";
- mesg_out = MSG_INITIATOR_DET_ERR;
- break;
- case P_MESGIN:
- phase = "Message-In";
- mesg_out = MSG_PARITY_ERROR;
- break;
- default:
- phase = "unknown";
- break;
- }
-
- /*
- * A parity error has occurred during a data
- * transfer phase. Flag it and continue.
- */
- if( (p->features & AHC_ULTRA3) &&
- (aic_inb(p, SCSIRATE) & AHC_SYNCRATE_CRC) &&
- (lastphase == P_DATAIN) )
- {
- printk(WARN_LEAD "CRC error during %s phase.\n",
- p->host_no, CTL_OF_SCB(scb), phase);
- if(sstat2 & CRCVALERR)
- {
- printk(WARN_LEAD " CRC error in intermediate CRC packet.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- if(sstat2 & CRCENDERR)
- {
- printk(WARN_LEAD " CRC error in ending CRC packet.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- if(sstat2 & CRCREQERR)
- {
- printk(WARN_LEAD " Target incorrectly requested a CRC packet.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- if(sstat2 & DUAL_EDGE_ERROR)
- {
- printk(WARN_LEAD " Dual Edge transmission error.\n",
- p->host_no, CTL_OF_SCB(scb));
- }
- }
- else if( (lastphase == P_MESGOUT) &&
- (scb->flags & SCB_MSGOUT_PPR) )
- {
- /*
- * As per the draft specs, any device capable of supporting any of
- * the option values other than 0 are not allowed to reject the
- * PPR message. Instead, they must negotiate out what they do
- * support instead of rejecting our offering or else they cause
- * a parity error during msg_out phase to signal that they don't
- * like our settings.
- */
- aic_dev = AIC_DEV(scb->cmd);
- aic_dev->needppr = aic_dev->needppr_copy = 0;
- aic7xxx_set_width(p, scb->cmd->device->id, scb->cmd->device->channel, scb->cmd->device->lun,
- MSG_EXT_WDTR_BUS_8_BIT,
- (AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE),
- aic_dev);
- aic7xxx_set_syncrate(p, NULL, scb->cmd->device->id, scb->cmd->device->channel, 0, 0,
- 0, AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE,
- aic_dev);
- aic_dev->goal.options = 0;
- scb->flags &= ~SCB_MSGOUT_BITS;
- if(aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "parity error during PPR message, reverting "
- "to WDTR/SDTR\n", p->host_no, CTL_OF_SCB(scb));
- }
- if ( aic_dev->goal.width )
- {
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 1;
- }
- if ( aic_dev->goal.offset )
- {
- if( aic_dev->goal.period <= 9 )
- {
- aic_dev->goal.period = 10;
- }
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 1;
- }
- scb = NULL;
- }
-
- /*
- * We've set the hardware to assert ATN if we get a parity
- * error on "in" phases, so all we need to do is stuff the
- * message buffer with the appropriate message. "In" phases
- * have set mesg_out to something other than MSG_NOP.
- */
- if (mesg_out != MSG_NOOP)
- {
- aic_outb(p, mesg_out, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
- scb = NULL;
- }
- aic_outb(p, CLRSCSIPERR, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- unpause_sequencer(p, /* unpause_always */ TRUE);
- }
- else if ( (status & REQINIT) &&
- (p->flags & AHC_HANDLING_REQINITS) )
- {
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic7xxx_verbose > 0xffff)
- printk(INFO_LEAD "Handling REQINIT, SSTAT1=0x%x.\n", p->host_no,
- CTL_OF_SCB(scb), aic_inb(p, SSTAT1));
-#endif
- aic7xxx_handle_reqinit(p, scb);
- return;
- }
- else
- {
- /*
- * We don't know what's going on. Turn off the
- * interrupt source and try to continue.
- */
- if (aic7xxx_verbose & VERBOSE_SCSIINT)
- printk(INFO_LEAD "Unknown SCSIINT status, SSTAT1(0x%x).\n",
- p->host_no, -1, -1, -1, status);
- aic_outb(p, status, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- unpause_sequencer(p, /* unpause always */ TRUE);
- scb = NULL;
- }
- if (scb != NULL)
- {
- aic7xxx_done(p, scb);
- }
-}
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
-static void
-aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer)
-{
- unsigned char saved_scbptr, free_scbh, dis_scbh, wait_scbh, temp;
- int i, bogus, lost;
- static unsigned char scb_status[AIC7XXX_MAXSCB];
-
-#define SCB_NO_LIST 0
-#define SCB_FREE_LIST 1
-#define SCB_WAITING_LIST 2
-#define SCB_DISCONNECTED_LIST 4
-#define SCB_CURRENTLY_ACTIVE 8
-
- /*
- * Note, these checks will fail on a regular basis once the machine moves
- * beyond the bus scan phase. The problem is race conditions concerning
- * the scbs and where they are linked in. When you have 30 or so commands
- * outstanding on the bus, and run this twice with every interrupt, the
- * chances get pretty good that you'll catch the sequencer with an SCB
- * only partially linked in. Therefore, once we pass the scan phase
- * of the bus, we really should disable this function.
- */
- bogus = FALSE;
- memset(&scb_status[0], 0, sizeof(scb_status));
- pause_sequencer(p);
- saved_scbptr = aic_inb(p, SCBPTR);
- if (saved_scbptr >= p->scb_data->maxhscbs)
- {
- printk("Bogus SCBPTR %d\n", saved_scbptr);
- bogus = TRUE;
- }
- scb_status[saved_scbptr] = SCB_CURRENTLY_ACTIVE;
- free_scbh = aic_inb(p, FREE_SCBH);
- if ( (free_scbh != SCB_LIST_NULL) &&
- (free_scbh >= p->scb_data->maxhscbs) )
- {
- printk("Bogus FREE_SCBH %d\n", free_scbh);
- bogus = TRUE;
- }
- else
- {
- temp = free_scbh;
- while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
- {
- if(scb_status[temp] & 0x07)
- {
- printk("HSCB %d on multiple lists, status 0x%02x", temp,
- scb_status[temp] | SCB_FREE_LIST);
- bogus = TRUE;
- }
- scb_status[temp] |= SCB_FREE_LIST;
- aic_outb(p, temp, SCBPTR);
- temp = aic_inb(p, SCB_NEXT);
- }
- }
-
- dis_scbh = aic_inb(p, DISCONNECTED_SCBH);
- if ( (dis_scbh != SCB_LIST_NULL) &&
- (dis_scbh >= p->scb_data->maxhscbs) )
- {
- printk("Bogus DISCONNECTED_SCBH %d\n", dis_scbh);
- bogus = TRUE;
- }
- else
- {
- temp = dis_scbh;
- while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
- {
- if(scb_status[temp] & 0x07)
- {
- printk("HSCB %d on multiple lists, status 0x%02x", temp,
- scb_status[temp] | SCB_DISCONNECTED_LIST);
- bogus = TRUE;
- }
- scb_status[temp] |= SCB_DISCONNECTED_LIST;
- aic_outb(p, temp, SCBPTR);
- temp = aic_inb(p, SCB_NEXT);
- }
- }
-
- wait_scbh = aic_inb(p, WAITING_SCBH);
- if ( (wait_scbh != SCB_LIST_NULL) &&
- (wait_scbh >= p->scb_data->maxhscbs) )
- {
- printk("Bogus WAITING_SCBH %d\n", wait_scbh);
- bogus = TRUE;
- }
- else
- {
- temp = wait_scbh;
- while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
- {
- if(scb_status[temp] & 0x07)
- {
- printk("HSCB %d on multiple lists, status 0x%02x", temp,
- scb_status[temp] | SCB_WAITING_LIST);
- bogus = TRUE;
- }
- scb_status[temp] |= SCB_WAITING_LIST;
- aic_outb(p, temp, SCBPTR);
- temp = aic_inb(p, SCB_NEXT);
- }
- }
-
- lost=0;
- for(i=0; i < p->scb_data->maxhscbs; i++)
- {
- aic_outb(p, i, SCBPTR);
- temp = aic_inb(p, SCB_NEXT);
- if ( ((temp != SCB_LIST_NULL) &&
- (temp >= p->scb_data->maxhscbs)) )
- {
- printk("HSCB %d bad, SCB_NEXT invalid(%d).\n", i, temp);
- bogus = TRUE;
- }
- if ( temp == i )
- {
- printk("HSCB %d bad, SCB_NEXT points to self.\n", i);
- bogus = TRUE;
- }
- if (scb_status[i] == 0)
- lost++;
- if (lost > 1)
- {
- printk("Too many lost scbs.\n");
- bogus=TRUE;
- }
- }
- aic_outb(p, saved_scbptr, SCBPTR);
- unpause_sequencer(p, FALSE);
- if (bogus)
- {
- printk("Bogus parameters found in card SCB array structures.\n");
- printk("%s\n", buffer);
- aic7xxx_panic_abort(p, NULL);
- }
- return;
-}
-#endif
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_handle_command_completion_intr
- *
- * Description:
- * SCSI command completion interrupt handler.
- *-F*************************************************************************/
-static void
-aic7xxx_handle_command_completion_intr(struct aic7xxx_host *p)
-{
- struct aic7xxx_scb *scb = NULL;
- struct aic_dev_data *aic_dev;
- struct scsi_cmnd *cmd;
- unsigned char scb_index, tindex;
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) )
- printk(INFO_LEAD "Command Complete Int.\n", p->host_no, -1, -1, -1);
-#endif
-
- /*
- * Read the INTSTAT location after clearing the CMDINT bit. This forces
- * any posted PCI writes to flush to memory. Gerard Roudier suggested
- * this fix to the possible race of clearing the CMDINT bit but not
- * having all command bytes flushed onto the qoutfifo.
- */
- aic_outb(p, CLRCMDINT, CLRINT);
- aic_inb(p, INTSTAT);
- /*
- * The sequencer will continue running when it
- * issues this interrupt. There may be >1 commands
- * finished, so loop until we've processed them all.
- */
-
- while (p->qoutfifo[p->qoutfifonext] != SCB_LIST_NULL)
- {
- scb_index = p->qoutfifo[p->qoutfifonext];
- p->qoutfifo[p->qoutfifonext++] = SCB_LIST_NULL;
- if ( scb_index >= p->scb_data->numscbs )
- {
- printk(WARN_LEAD "CMDCMPLT with invalid SCB index %d\n", p->host_no,
- -1, -1, -1, scb_index);
- continue;
- }
- scb = p->scb_data->scb_array[scb_index];
- if (!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL))
- {
- printk(WARN_LEAD "CMDCMPLT without command for SCB %d, SCB flags "
- "0x%x, cmd 0x%lx\n", p->host_no, -1, -1, -1, scb_index, scb->flags,
- (unsigned long) scb->cmd);
- continue;
- }
- tindex = TARGET_INDEX(scb->cmd);
- aic_dev = AIC_DEV(scb->cmd);
- if (scb->flags & SCB_QUEUED_ABORT)
- {
- pause_sequencer(p);
- if ( ((aic_inb(p, LASTPHASE) & PHASE_MASK) != P_BUSFREE) &&
- (aic_inb(p, SCB_TAG) == scb->hscb->tag) )
- {
- unpause_sequencer(p, FALSE);
- continue;
- }
- aic7xxx_reset_device(p, scb->cmd->device->id, scb->cmd->device->channel,
- scb->cmd->device->lun, scb->hscb->tag);
- scb->flags &= ~(SCB_QUEUED_FOR_DONE | SCB_RESET | SCB_ABORT |
- SCB_QUEUED_ABORT);
- unpause_sequencer(p, FALSE);
- }
- else if (scb->flags & SCB_ABORT)
- {
- /*
- * We started to abort this, but it completed on us, let it
- * through as successful
- */
- scb->flags &= ~(SCB_ABORT|SCB_RESET);
- }
- else if (scb->flags & SCB_SENSE)
- {
- char *buffer = &scb->cmd->sense_buffer[0];
-
- if (buffer[12] == 0x47 || buffer[12] == 0x54)
- {
- /*
- * Signal that we need to re-negotiate things.
- */
- aic_dev->needppr = aic_dev->needppr_copy;
- aic_dev->needsdtr = aic_dev->needsdtr_copy;
- aic_dev->needwdtr = aic_dev->needwdtr_copy;
- }
- }
- cmd = scb->cmd;
- if (scb->hscb->residual_SG_segment_count != 0)
- {
- aic7xxx_calculate_residual(p, scb);
- }
- cmd->result |= (aic7xxx_error(cmd) << 16);
- aic7xxx_done(p, scb);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_isr
- *
- * Description:
- * SCSI controller interrupt handler.
- *-F*************************************************************************/
-static void
-aic7xxx_isr(void *dev_id)
-{
- struct aic7xxx_host *p;
- unsigned char intstat;
-
- p = dev_id;
-
- /*
- * Just a few sanity checks. Make sure that we have an int pending.
- * Also, if PCI, then we are going to check for a PCI bus error status
- * should we get too many spurious interrupts.
- */
- if (!((intstat = aic_inb(p, INTSTAT)) & INT_PEND))
- {
-#ifdef CONFIG_PCI
- if ( (p->chip & AHC_PCI) && (p->spurious_int > 500) &&
- !(p->flags & AHC_HANDLING_REQINITS) )
- {
- if ( aic_inb(p, ERROR) & PCIERRSTAT )
- {
- aic7xxx_pci_intr(p);
- }
- p->spurious_int = 0;
- }
- else if ( !(p->flags & AHC_HANDLING_REQINITS) )
- {
- p->spurious_int++;
- }
-#endif
- return;
- }
-
- p->spurious_int = 0;
-
- /*
- * Keep track of interrupts for /proc/scsi
- */
- p->isr_count++;
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) &&
- (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) )
- aic7xxx_check_scbs(p, "Bogus settings at start of interrupt.");
-#endif
-
- /*
- * Handle all the interrupt sources - especially for SCSI
- * interrupts, we won't get a second chance at them.
- */
- if (intstat & CMDCMPLT)
- {
- aic7xxx_handle_command_completion_intr(p);
- }
-
- if (intstat & BRKADRINT)
- {
- int i;
- unsigned char errno = aic_inb(p, ERROR);
-
- printk(KERN_ERR "(scsi%d) BRKADRINT error(0x%x):\n", p->host_no, errno);
- for (i = 0; i < ARRAY_SIZE(hard_error); i++)
- {
- if (errno & hard_error[i].errno)
- {
- printk(KERN_ERR " %s\n", hard_error[i].errmesg);
- }
- }
- printk(KERN_ERR "(scsi%d) SEQADDR=0x%x\n", p->host_no,
- (((aic_inb(p, SEQADDR1) << 8) & 0x100) | aic_inb(p, SEQADDR0)));
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, NULL);
-#ifdef CONFIG_PCI
- if (errno & PCIERRSTAT)
- aic7xxx_pci_intr(p);
-#endif
- if (errno & (SQPARERR | ILLOPCODE | ILLSADDR))
- {
- panic("aic7xxx: unrecoverable BRKADRINT.\n");
- }
- if (errno & ILLHADDR)
- {
- printk(KERN_ERR "(scsi%d) BUG! Driver accessed chip without first "
- "pausing controller!\n", p->host_no);
- }
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (errno & DPARERR)
- {
- if (aic_inb(p, DMAPARAMS) & DIRECTION)
- printk("(scsi%d) while DMAing SCB from host to card.\n", p->host_no);
- else
- printk("(scsi%d) while DMAing SCB from card to host.\n", p->host_no);
- }
-#endif
- aic_outb(p, CLRPARERR | CLRBRKADRINT, CLRINT);
- unpause_sequencer(p, FALSE);
- }
-
- if (intstat & SEQINT)
- {
- /*
- * Read the CCSCBCTL register to work around a bug in the Ultra2 cards
- */
- if(p->features & AHC_ULTRA2)
- {
- aic_inb(p, CCSCBCTL);
- }
- aic7xxx_handle_seqint(p, intstat);
- }
-
- if (intstat & SCSIINT)
- {
- aic7xxx_handle_scsiint(p, intstat);
- }
-
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) &&
- (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) )
- aic7xxx_check_scbs(p, "Bogus settings at end of interrupt.");
-#endif
-
-}
-
-/*+F*************************************************************************
- * Function:
- * do_aic7xxx_isr
- *
- * Description:
- * This is a gross hack to solve a problem in linux kernels 2.1.85 and
- * above. Please, children, do not try this at home, and if you ever see
- * anything like it, please inform the Gross Hack Police immediately
- *-F*************************************************************************/
-static irqreturn_t
-do_aic7xxx_isr(int irq, void *dev_id)
-{
- unsigned long cpu_flags;
- struct aic7xxx_host *p;
-
- p = dev_id;
- if(!p)
- return IRQ_NONE;
- spin_lock_irqsave(p->host->host_lock, cpu_flags);
- p->flags |= AHC_IN_ISR;
- do
- {
- aic7xxx_isr(dev_id);
- } while ( (aic_inb(p, INTSTAT) & INT_PEND) );
- aic7xxx_done_cmds_complete(p);
- aic7xxx_run_waiting_queues(p);
- p->flags &= ~AHC_IN_ISR;
- spin_unlock_irqrestore(p->host->host_lock, cpu_flags);
-
- return IRQ_HANDLED;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_init_transinfo
- *
- * Description:
- * Set up the initial aic_dev values from the BIOS settings and from
- * INQUIRY results
- *-F*************************************************************************/
-static void
-aic7xxx_init_transinfo(struct aic7xxx_host *p, struct aic_dev_data *aic_dev)
-{
- struct scsi_device *sdpnt = aic_dev->SDptr;
- unsigned char tindex;
-
- tindex = sdpnt->id | (sdpnt->channel << 3);
- if (!(aic_dev->flags & DEVICE_DTR_SCANNED))
- {
- aic_dev->flags |= DEVICE_DTR_SCANNED;
-
- if ( sdpnt->wdtr && (p->features & AHC_WIDE) )
- {
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 1;
- aic_dev->goal.width = p->user[tindex].width;
- }
- else
- {
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 0;
- pause_sequencer(p);
- aic7xxx_set_width(p, sdpnt->id, sdpnt->channel, sdpnt->lun,
- MSG_EXT_WDTR_BUS_8_BIT, (AHC_TRANS_ACTIVE |
- AHC_TRANS_GOAL |
- AHC_TRANS_CUR), aic_dev );
- unpause_sequencer(p, FALSE);
- }
- if ( sdpnt->sdtr && p->user[tindex].offset )
- {
- aic_dev->goal.period = p->user[tindex].period;
- aic_dev->goal.options = p->user[tindex].options;
- if (p->features & AHC_ULTRA2)
- aic_dev->goal.offset = MAX_OFFSET_ULTRA2;
- else if (aic_dev->goal.width == MSG_EXT_WDTR_BUS_16_BIT)
- aic_dev->goal.offset = MAX_OFFSET_16BIT;
- else
- aic_dev->goal.offset = MAX_OFFSET_8BIT;
- if ( sdpnt->ppr && p->user[tindex].period <= 9 &&
- p->user[tindex].options )
- {
- aic_dev->needppr = aic_dev->needppr_copy = 1;
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 0;
- aic_dev->needwdtr = aic_dev->needwdtr_copy = 0;
- aic_dev->flags |= DEVICE_SCSI_3;
- }
- else
- {
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 1;
- aic_dev->goal.period = max_t(unsigned char, 10, aic_dev->goal.period);
- aic_dev->goal.options = 0;
- }
- }
- else
- {
- aic_dev->needsdtr = aic_dev->needsdtr_copy = 0;
- aic_dev->goal.period = 255;
- aic_dev->goal.offset = 0;
- aic_dev->goal.options = 0;
- }
- aic_dev->flags |= DEVICE_PRINT_DTR;
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_slave_alloc
- *
- * Description:
- * Set up the initial aic_dev struct pointers
- *-F*************************************************************************/
-static int
-aic7xxx_slave_alloc(struct scsi_device *SDptr)
-{
- struct aic7xxx_host *p = (struct aic7xxx_host *)SDptr->host->hostdata;
- struct aic_dev_data *aic_dev;
-
- aic_dev = kmalloc(sizeof(struct aic_dev_data), GFP_KERNEL);
- if(!aic_dev)
- return 1;
- /*
- * Check to see if channel was scanned.
- */
-
- if (!(p->flags & AHC_A_SCANNED) && (SDptr->channel == 0))
- {
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(INFO_LEAD "Scanning channel for devices.\n",
- p->host_no, 0, -1, -1);
- p->flags |= AHC_A_SCANNED;
- }
- else
- {
- if (!(p->flags & AHC_B_SCANNED) && (SDptr->channel == 1))
- {
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(INFO_LEAD "Scanning channel for devices.\n",
- p->host_no, 1, -1, -1);
- p->flags |= AHC_B_SCANNED;
- }
- }
-
- memset(aic_dev, 0, sizeof(struct aic_dev_data));
- SDptr->hostdata = aic_dev;
- aic_dev->SDptr = SDptr;
- aic_dev->max_q_depth = 1;
- aic_dev->temp_q_depth = 1;
- scbq_init(&aic_dev->delayed_scbs);
- INIT_LIST_HEAD(&aic_dev->list);
- list_add_tail(&aic_dev->list, &p->aic_devs);
- return 0;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_device_queue_depth
- *
- * Description:
- * Determines the queue depth for a given device. There are two ways
- * a queue depth can be obtained for a tagged queueing device. One
- * way is the default queue depth which is determined by whether
- * aic7xxx_default_queue_depth. The other is by the aic7xxx_tag_info
- * array.
- *
- * If tagged queueing isn't supported on the device, then we set the
- * depth to p->host->hostt->cmd_per_lun for internal driver queueing.
- * as the default queue depth. Otherwise, we use either 4 or 8 as the
- * default queue depth (dependent on the number of hardware SCBs).
- * The other way we determine queue depth is through the use of the
- * aic7xxx_tag_info array which is enabled by defining
- * AIC7XXX_TAGGED_QUEUEING_BY_DEVICE. This array can be initialized
- * with queue depths for individual devices. It also allows tagged
- * queueing to be [en|dis]abled for a specific adapter.
- *-F*************************************************************************/
-static void
-aic7xxx_device_queue_depth(struct aic7xxx_host *p, struct scsi_device *device)
-{
- int tag_enabled = FALSE;
- struct aic_dev_data *aic_dev = device->hostdata;
- unsigned char tindex;
-
- tindex = device->id | (device->channel << 3);
-
- if (device->simple_tags)
- return; // We've already enabled this device
-
- if (device->tagged_supported)
- {
- tag_enabled = TRUE;
-
- if (!(p->discenable & (1 << tindex)))
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- printk(INFO_LEAD "Disconnection disabled, unable to "
- "enable tagged queueing.\n",
- p->host_no, device->channel, device->id, device->lun);
- tag_enabled = FALSE;
- }
- else
- {
- if (p->instance >= ARRAY_SIZE(aic7xxx_tag_info))
- {
- static int print_warning = TRUE;
- if(print_warning)
- {
- printk(KERN_INFO "aic7xxx: WARNING, insufficient tag_info instances for"
- " installed controllers.\n");
- printk(KERN_INFO "aic7xxx: Please update the aic7xxx_tag_info array in"
- " the aic7xxx.c source file.\n");
- print_warning = FALSE;
- }
- aic_dev->max_q_depth = aic_dev->temp_q_depth =
- aic7xxx_default_queue_depth;
- }
- else
- {
-
- if (aic7xxx_tag_info[p->instance].tag_commands[tindex] == 255)
- {
- tag_enabled = FALSE;
- }
- else if (aic7xxx_tag_info[p->instance].tag_commands[tindex] == 0)
- {
- aic_dev->max_q_depth = aic_dev->temp_q_depth =
- aic7xxx_default_queue_depth;
- }
- else
- {
- aic_dev->max_q_depth = aic_dev->temp_q_depth =
- aic7xxx_tag_info[p->instance].tag_commands[tindex];
- }
- }
- }
- }
- if (tag_enabled)
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Tagged queuing enabled, queue depth %d.\n",
- p->host_no, device->channel, device->id,
- device->lun, aic_dev->max_q_depth);
- }
- scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, aic_dev->max_q_depth);
- }
- else
- {
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
- {
- printk(INFO_LEAD "Tagged queuing disabled, queue depth %d.\n",
- p->host_no, device->channel, device->id,
- device->lun, device->host->cmd_per_lun);
- }
- scsi_adjust_queue_depth(device, 0, device->host->cmd_per_lun);
- }
- return;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_slave_destroy
- *
- * Description:
- * prepare for this device to go away
- *-F*************************************************************************/
-static void
-aic7xxx_slave_destroy(struct scsi_device *SDptr)
-{
- struct aic_dev_data *aic_dev = SDptr->hostdata;
-
- list_del(&aic_dev->list);
- SDptr->hostdata = NULL;
- kfree(aic_dev);
- return;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_slave_configure
- *
- * Description:
- * Configure the device we are attaching to the controller. This is
- * where we get to do things like scan the INQUIRY data, set queue
- * depths, allocate command structs, etc.
- *-F*************************************************************************/
-static int
-aic7xxx_slave_configure(struct scsi_device *SDptr)
-{
- struct aic7xxx_host *p = (struct aic7xxx_host *) SDptr->host->hostdata;
- struct aic_dev_data *aic_dev;
- int scbnum;
-
- aic_dev = (struct aic_dev_data *)SDptr->hostdata;
-
- aic7xxx_init_transinfo(p, aic_dev);
- aic7xxx_device_queue_depth(p, SDptr);
- if(list_empty(&aic_dev->list))
- list_add_tail(&aic_dev->list, &p->aic_devs);
-
- scbnum = 0;
- list_for_each_entry(aic_dev, &p->aic_devs, list) {
- scbnum += aic_dev->max_q_depth;
- }
- while (scbnum > p->scb_data->numscbs)
- {
- /*
- * Pre-allocate the needed SCBs to get around the possibility of having
- * to allocate some when memory is more or less exhausted and we need
- * the SCB in order to perform a swap operation (possible deadlock)
- */
- if ( aic7xxx_allocate_scb(p) == 0 )
- break;
- }
-
-
- return(0);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_probe
- *
- * Description:
- * Probing for EISA boards: it looks like the first two bytes
- * are a manufacturer code - three characters, five bits each:
- *
- * BYTE 0 BYTE 1 BYTE 2 BYTE 3
- * ?1111122 22233333 PPPPPPPP RRRRRRRR
- *
- * The characters are baselined off ASCII '@', so add that value
- * to each to get the real ASCII code for it. The next two bytes
- * appear to be a product and revision number, probably vendor-
- * specific. This is what is being searched for at each port,
- * and what should probably correspond to the ID= field in the
- * ECU's .cfg file for the card - if your card is not detected,
- * make sure your signature is listed in the array.
- *
- * The fourth byte's lowest bit seems to be an enabled/disabled
- * flag (rest of the bits are reserved?).
- *
- * NOTE: This function is only needed on Intel and Alpha platforms,
- * the other platforms we support don't have EISA/VLB busses. So,
- * we #ifdef this entire function to avoid compiler warnings about
- * an unused function.
- *-F*************************************************************************/
-#if defined(__i386__) || defined(__alpha__)
-static int
-aic7xxx_probe(int slot, int base, ahc_flag_type *flags)
-{
- int i;
- unsigned char buf[4];
-
- static struct {
- int n;
- unsigned char signature[sizeof(buf)];
- ahc_chip type;
- int bios_disabled;
- } AIC7xxx[] = {
- { 4, { 0x04, 0x90, 0x77, 0x70 },
- AHC_AIC7770|AHC_EISA, FALSE }, /* mb 7770 */
- { 4, { 0x04, 0x90, 0x77, 0x71 },
- AHC_AIC7770|AHC_EISA, FALSE }, /* host adapter 274x */
- { 4, { 0x04, 0x90, 0x77, 0x56 },
- AHC_AIC7770|AHC_VL, FALSE }, /* 284x BIOS enabled */
- { 4, { 0x04, 0x90, 0x77, 0x57 },
- AHC_AIC7770|AHC_VL, TRUE } /* 284x BIOS disabled */
- };
-
- /*
- * The VL-bus cards need to be primed by
- * writing before a signature check.
- */
- for (i = 0; i < sizeof(buf); i++)
- {
- outb(0x80 + i, base);
- buf[i] = inb(base + i);
- }
-
- for (i = 0; i < ARRAY_SIZE(AIC7xxx); i++)
- {
- /*
- * Signature match on enabled card?
- */
- if (!memcmp(buf, AIC7xxx[i].signature, AIC7xxx[i].n))
- {
- if (inb(base + 4) & 1)
- {
- if (AIC7xxx[i].bios_disabled)
- {
- *flags |= AHC_USEDEFAULTS;
- }
- else
- {
- *flags |= AHC_BIOS_ENABLED;
- }
- return (i);
- }
-
- printk("aic7xxx: <Adaptec 7770 SCSI Host Adapter> "
- "disabled at slot %d, ignored.\n", slot);
- }
- }
-
- return (-1);
-}
-#endif /* (__i386__) || (__alpha__) */
-
-
-/*+F*************************************************************************
- * Function:
- * read_2840_seeprom
- *
- * Description:
- * Reads the 2840 serial EEPROM and returns 1 if successful and 0 if
- * not successful.
- *
- * See read_seeprom (for the 2940) for the instruction set of the 93C46
- * chip.
- *
- * The 2840 interface to the 93C46 serial EEPROM is through the
- * STATUS_2840 and SEECTL_2840 registers. The CS_2840, CK_2840, and
- * DO_2840 bits of the SEECTL_2840 register are connected to the chip
- * select, clock, and data out lines respectively of the serial EEPROM.
- * The DI_2840 bit of the STATUS_2840 is connected to the data in line
- * of the serial EEPROM. The EEPROM_TF bit of STATUS_2840 register is
- * useful in that it gives us an 800 nsec timer. After a read from the
- * SEECTL_2840 register the timing flag is cleared and goes high 800 nsec
- * later.
- *-F*************************************************************************/
-static int
-read_284x_seeprom(struct aic7xxx_host *p, struct seeprom_config *sc)
-{
- int i = 0, k = 0;
- unsigned char temp;
- unsigned short checksum = 0;
- unsigned short *seeprom = (unsigned short *) sc;
- struct seeprom_cmd {
- unsigned char len;
- unsigned char bits[3];
- };
- struct seeprom_cmd seeprom_read = {3, {1, 1, 0}};
-
-#define CLOCK_PULSE(p) \
- while ((aic_inb(p, STATUS_2840) & EEPROM_TF) == 0) \
- { \
- ; /* Do nothing */ \
- } \
- (void) aic_inb(p, SEECTL_2840);
-
- /*
- * Read the first 32 registers of the seeprom. For the 2840,
- * the 93C46 SEEPROM is a 1024-bit device with 64 16-bit registers
- * but only the first 32 are used by Adaptec BIOS. The loop
- * will range from 0 to 31.
- */
- for (k = 0; k < (sizeof(*sc) / 2); k++)
- {
- /*
- * Send chip select for one clock cycle.
- */
- aic_outb(p, CK_2840 | CS_2840, SEECTL_2840);
- CLOCK_PULSE(p);
-
- /*
- * Now we're ready to send the read command followed by the
- * address of the 16-bit register we want to read.
- */
- for (i = 0; i < seeprom_read.len; i++)
- {
- temp = CS_2840 | seeprom_read.bits[i];
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- temp = temp ^ CK_2840;
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- }
- /*
- * Send the 6 bit address (MSB first, LSB last).
- */
- for (i = 5; i >= 0; i--)
- {
- temp = k;
- temp = (temp >> i) & 1; /* Mask out all but lower bit. */
- temp = CS_2840 | temp;
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- temp = temp ^ CK_2840;
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- }
-
- /*
- * Now read the 16 bit register. An initial 0 precedes the
- * register contents which begins with bit 15 (MSB) and ends
- * with bit 0 (LSB). The initial 0 will be shifted off the
- * top of our word as we let the loop run from 0 to 16.
- */
- for (i = 0; i <= 16; i++)
- {
- temp = CS_2840;
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- temp = temp ^ CK_2840;
- seeprom[k] = (seeprom[k] << 1) | (aic_inb(p, STATUS_2840) & DI_2840);
- aic_outb(p, temp, SEECTL_2840);
- CLOCK_PULSE(p);
- }
- /*
- * The serial EEPROM has a checksum in the last word. Keep a
- * running checksum for all words read except for the last
- * word. We'll verify the checksum after all words have been
- * read.
- */
- if (k < (sizeof(*sc) / 2) - 1)
- {
- checksum = checksum + seeprom[k];
- }
-
- /*
- * Reset the chip select for the next command cycle.
- */
- aic_outb(p, 0, SEECTL_2840);
- CLOCK_PULSE(p);
- aic_outb(p, CK_2840, SEECTL_2840);
- CLOCK_PULSE(p);
- aic_outb(p, 0, SEECTL_2840);
- CLOCK_PULSE(p);
- }
-
-#if 0
- printk("Computed checksum 0x%x, checksum read 0x%x\n", checksum, sc->checksum);
- printk("Serial EEPROM:");
- for (k = 0; k < (sizeof(*sc) / 2); k++)
- {
- if (((k % 8) == 0) && (k != 0))
- {
- printk("\n ");
- }
- printk(" 0x%x", seeprom[k]);
- }
- printk("\n");
-#endif
-
- if (checksum != sc->checksum)
- {
- printk("aic7xxx: SEEPROM checksum error, ignoring SEEPROM settings.\n");
- return (0);
- }
-
- return (1);
-#undef CLOCK_PULSE
-}
-
-#define CLOCK_PULSE(p) \
- do { \
- int limit = 0; \
- do { \
- mb(); \
- pause_sequencer(p); /* This is just to generate some PCI */ \
- /* traffic so the PCI read is flushed */ \
- /* it shouldn't be needed, but some */ \
- /* chipsets do indeed appear to need */ \
- /* something to force PCI reads to get */ \
- /* flushed */ \
- udelay(1); /* Do nothing */ \
- } while (((aic_inb(p, SEECTL) & SEERDY) == 0) && (++limit < 1000)); \
- } while(0)
-
-/*+F*************************************************************************
- * Function:
- * acquire_seeprom
- *
- * Description:
- * Acquires access to the memory port on PCI controllers.
- *-F*************************************************************************/
-static int
-acquire_seeprom(struct aic7xxx_host *p)
-{
-
- /*
- * Request access of the memory port. When access is
- * granted, SEERDY will go high. We use a 1 second
- * timeout which should be near 1 second more than
- * is needed. Reason: after the 7870 chip reset, there
- * should be no contention.
- */
- aic_outb(p, SEEMS, SEECTL);
- CLOCK_PULSE(p);
- if ((aic_inb(p, SEECTL) & SEERDY) == 0)
- {
- aic_outb(p, 0, SEECTL);
- return (0);
- }
- return (1);
-}
-
-/*+F*************************************************************************
- * Function:
- * release_seeprom
- *
- * Description:
- * Releases access to the memory port on PCI controllers.
- *-F*************************************************************************/
-static void
-release_seeprom(struct aic7xxx_host *p)
-{
- /*
- * Make sure the SEEPROM is ready before we release it.
- */
- CLOCK_PULSE(p);
- aic_outb(p, 0, SEECTL);
-}
-
-/*+F*************************************************************************
- * Function:
- * read_seeprom
- *
- * Description:
- * Reads the serial EEPROM and returns 1 if successful and 0 if
- * not successful.
- *
- * The instruction set of the 93C46/56/66 chips is as follows:
- *
- * Start OP
- * Function Bit Code Address Data Description
- * -------------------------------------------------------------------
- * READ 1 10 A5 - A0 Reads data stored in memory,
- * starting at specified address
- * EWEN 1 00 11XXXX Write enable must precede
- * all programming modes
- * ERASE 1 11 A5 - A0 Erase register A5A4A3A2A1A0
- * WRITE 1 01 A5 - A0 D15 - D0 Writes register
- * ERAL 1 00 10XXXX Erase all registers
- * WRAL 1 00 01XXXX D15 - D0 Writes to all registers
- * EWDS 1 00 00XXXX Disables all programming
- * instructions
- * *Note: A value of X for address is a don't care condition.
- * *Note: The 93C56 and 93C66 have 8 address bits.
- *
- *
- * The 93C46 has a four wire interface: clock, chip select, data in, and
- * data out. In order to perform one of the above functions, you need
- * to enable the chip select for a clock period (typically a minimum of
- * 1 usec, with the clock high and low a minimum of 750 and 250 nsec
- * respectively. While the chip select remains high, you can clock in
- * the instructions (above) starting with the start bit, followed by the
- * OP code, Address, and Data (if needed). For the READ instruction, the
- * requested 16-bit register contents is read from the data out line but
- * is preceded by an initial zero (leading 0, followed by 16-bits, MSB
- * first). The clock cycling from low to high initiates the next data
- * bit to be sent from the chip.
- *
- * The 78xx interface to the 93C46 serial EEPROM is through the SEECTL
- * register. After successful arbitration for the memory port, the
- * SEECS bit of the SEECTL register is connected to the chip select.
- * The SEECK, SEEDO, and SEEDI are connected to the clock, data out,
- * and data in lines respectively. The SEERDY bit of SEECTL is useful
- * in that it gives us an 800 nsec timer. After a write to the SEECTL
- * register, the SEERDY goes high 800 nsec later. The one exception
- * to this is when we first request access to the memory port. The
- * SEERDY goes high to signify that access has been granted and, for
- * this case, has no implied timing.
- *-F*************************************************************************/
-static int
-read_seeprom(struct aic7xxx_host *p, int offset,
- unsigned short *scarray, unsigned int len, seeprom_chip_type chip)
-{
- int i = 0, k;
- unsigned char temp;
- unsigned short checksum = 0;
- struct seeprom_cmd {
- unsigned char len;
- unsigned char bits[3];
- };
- struct seeprom_cmd seeprom_read = {3, {1, 1, 0}};
-
- /*
- * Request access of the memory port.
- */
- if (acquire_seeprom(p) == 0)
- {
- return (0);
- }
-
- /*
- * Read 'len' registers of the seeprom. For the 7870, the 93C46
- * SEEPROM is a 1024-bit device with 64 16-bit registers but only
- * the first 32 are used by Adaptec BIOS. Some adapters use the
- * 93C56 SEEPROM which is a 2048-bit device. The loop will range
- * from 0 to 'len' - 1.
- */
- for (k = 0; k < len; k++)
- {
- /*
- * Send chip select for one clock cycle.
- */
- aic_outb(p, SEEMS | SEECK | SEECS, SEECTL);
- CLOCK_PULSE(p);
-
- /*
- * Now we're ready to send the read command followed by the
- * address of the 16-bit register we want to read.
- */
- for (i = 0; i < seeprom_read.len; i++)
- {
- temp = SEEMS | SEECS | (seeprom_read.bits[i] << 1);
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- temp = temp ^ SEECK;
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- }
- /*
- * Send the 6 or 8 bit address (MSB first, LSB last).
- */
- for (i = ((int) chip - 1); i >= 0; i--)
- {
- temp = k + offset;
- temp = (temp >> i) & 1; /* Mask out all but lower bit. */
- temp = SEEMS | SEECS | (temp << 1);
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- temp = temp ^ SEECK;
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- }
-
- /*
- * Now read the 16 bit register. An initial 0 precedes the
- * register contents which begins with bit 15 (MSB) and ends
- * with bit 0 (LSB). The initial 0 will be shifted off the
- * top of our word as we let the loop run from 0 to 16.
- */
- for (i = 0; i <= 16; i++)
- {
- temp = SEEMS | SEECS;
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- temp = temp ^ SEECK;
- scarray[k] = (scarray[k] << 1) | (aic_inb(p, SEECTL) & SEEDI);
- aic_outb(p, temp, SEECTL);
- CLOCK_PULSE(p);
- }
-
- /*
- * The serial EEPROM should have a checksum in the last word.
- * Keep a running checksum for all words read except for the
- * last word. We'll verify the checksum after all words have
- * been read.
- */
- if (k < (len - 1))
- {
- checksum = checksum + scarray[k];
- }
-
- /*
- * Reset the chip select for the next command cycle.
- */
- aic_outb(p, SEEMS, SEECTL);
- CLOCK_PULSE(p);
- aic_outb(p, SEEMS | SEECK, SEECTL);
- CLOCK_PULSE(p);
- aic_outb(p, SEEMS, SEECTL);
- CLOCK_PULSE(p);
- }
-
- /*
- * Release access to the memory port and the serial EEPROM.
- */
- release_seeprom(p);
-
-#if 0
- printk("Computed checksum 0x%x, checksum read 0x%x\n",
- checksum, scarray[len - 1]);
- printk("Serial EEPROM:");
- for (k = 0; k < len; k++)
- {
- if (((k % 8) == 0) && (k != 0))
- {
- printk("\n ");
- }
- printk(" 0x%x", scarray[k]);
- }
- printk("\n");
-#endif
- if ( (checksum != scarray[len - 1]) || (checksum == 0) )
- {
- return (0);
- }
-
- return (1);
-}
-
-/*+F*************************************************************************
- * Function:
- * read_brdctl
- *
- * Description:
- * Reads the BRDCTL register.
- *-F*************************************************************************/
-static unsigned char
-read_brdctl(struct aic7xxx_host *p)
-{
- unsigned char brdctl, value;
-
- /*
- * Make sure the SEEPROM is ready before we access it
- */
- CLOCK_PULSE(p);
- if (p->features & AHC_ULTRA2)
- {
- brdctl = BRDRW_ULTRA2;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- value = aic_inb(p, BRDCTL);
- CLOCK_PULSE(p);
- return(value);
- }
- brdctl = BRDRW;
- if ( !((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) ||
- (p->flags & AHC_CHNLB) )
- {
- brdctl |= BRDCS;
- }
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- value = aic_inb(p, BRDCTL);
- CLOCK_PULSE(p);
- aic_outb(p, 0, BRDCTL);
- CLOCK_PULSE(p);
- return (value);
-}
-
-/*+F*************************************************************************
- * Function:
- * write_brdctl
- *
- * Description:
- * Writes a value to the BRDCTL register.
- *-F*************************************************************************/
-static void
-write_brdctl(struct aic7xxx_host *p, unsigned char value)
-{
- unsigned char brdctl;
-
- /*
- * Make sure the SEEPROM is ready before we access it
- */
- CLOCK_PULSE(p);
- if (p->features & AHC_ULTRA2)
- {
- brdctl = value;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- brdctl |= BRDSTB_ULTRA2;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- brdctl &= ~BRDSTB_ULTRA2;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- read_brdctl(p);
- CLOCK_PULSE(p);
- }
- else
- {
- brdctl = BRDSTB;
- if ( !((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) ||
- (p->flags & AHC_CHNLB) )
- {
- brdctl |= BRDCS;
- }
- brdctl = BRDSTB | BRDCS;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- brdctl |= value;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- brdctl &= ~BRDSTB;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- brdctl &= ~BRDCS;
- aic_outb(p, brdctl, BRDCTL);
- CLOCK_PULSE(p);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic785x_cable_detect
- *
- * Description:
- * Detect the cables that are present on aic785x class controller chips
- *-F*************************************************************************/
-static void
-aic785x_cable_detect(struct aic7xxx_host *p, int *int_50,
- int *ext_present, int *eeprom)
-{
- unsigned char brdctl;
-
- aic_outb(p, BRDRW | BRDCS, BRDCTL);
- CLOCK_PULSE(p);
- aic_outb(p, 0, BRDCTL);
- CLOCK_PULSE(p);
- brdctl = aic_inb(p, BRDCTL);
- CLOCK_PULSE(p);
- *int_50 = !(brdctl & BRDDAT5);
- *ext_present = !(brdctl & BRDDAT6);
- *eeprom = (aic_inb(p, SPIOCAP) & EEPROM);
-}
-
-#undef CLOCK_PULSE
-
-/*+F*************************************************************************
- * Function:
- * aic2940_uwpro_cable_detect
- *
- * Description:
- * Detect the cables that are present on the 2940-UWPro cards
- *
- * NOTE: This function assumes the SEEPROM will have already been acquired
- * prior to invocation of this function.
- *-F*************************************************************************/
-static void
-aic2940_uwpro_wide_cable_detect(struct aic7xxx_host *p, int *int_68,
- int *ext_68, int *eeprom)
-{
- unsigned char brdctl;
-
- /*
- * First read the status of our cables. Set the rom bank to
- * 0 since the bank setting serves as a multiplexor for the
- * cable detection logic. BRDDAT5 controls the bank switch.
- */
- write_brdctl(p, 0);
-
- /*
- * Now we read the state of the internal 68 connector. BRDDAT6
- * is don't care, BRDDAT7 is internal 68. The cable is
- * present if the bit is 0
- */
- brdctl = read_brdctl(p);
- *int_68 = !(brdctl & BRDDAT7);
-
- /*
- * Set the bank bit in brdctl and then read the external cable state
- * and the EEPROM status
- */
- write_brdctl(p, BRDDAT5);
- brdctl = read_brdctl(p);
-
- *ext_68 = !(brdctl & BRDDAT6);
- *eeprom = !(brdctl & BRDDAT7);
-
- /*
- * We're done, the calling function will release the SEEPROM for us
- */
-}
-
-/*+F*************************************************************************
- * Function:
- * aic787x_cable_detect
- *
- * Description:
- * Detect the cables that are present on aic787x class controller chips
- *
- * NOTE: This function assumes the SEEPROM will have already been acquired
- * prior to invocation of this function.
- *-F*************************************************************************/
-static void
-aic787x_cable_detect(struct aic7xxx_host *p, int *int_50, int *int_68,
- int *ext_present, int *eeprom)
-{
- unsigned char brdctl;
-
- /*
- * First read the status of our cables. Set the rom bank to
- * 0 since the bank setting serves as a multiplexor for the
- * cable detection logic. BRDDAT5 controls the bank switch.
- */
- write_brdctl(p, 0);
-
- /*
- * Now we read the state of the two internal connectors. BRDDAT6
- * is internal 50, BRDDAT7 is internal 68. For each, the cable is
- * present if the bit is 0
- */
- brdctl = read_brdctl(p);
- *int_50 = !(brdctl & BRDDAT6);
- *int_68 = !(brdctl & BRDDAT7);
-
- /*
- * Set the bank bit in brdctl and then read the external cable state
- * and the EEPROM status
- */
- write_brdctl(p, BRDDAT5);
- brdctl = read_brdctl(p);
-
- *ext_present = !(brdctl & BRDDAT6);
- *eeprom = !(brdctl & BRDDAT7);
-
- /*
- * We're done, the calling function will release the SEEPROM for us
- */
-}
-
-/*+F*************************************************************************
- * Function:
- * aic787x_ultra2_term_detect
- *
- * Description:
- * Detect the termination settings present on ultra2 class controllers
- *
- * NOTE: This function assumes the SEEPROM will have already been acquired
- * prior to invocation of this function.
- *-F*************************************************************************/
-static void
-aic7xxx_ultra2_term_detect(struct aic7xxx_host *p, int *enableSE_low,
- int *enableSE_high, int *enableLVD_low,
- int *enableLVD_high, int *eprom_present)
-{
- unsigned char brdctl;
-
- brdctl = read_brdctl(p);
-
- *eprom_present = (brdctl & BRDDAT7);
- *enableSE_high = (brdctl & BRDDAT6);
- *enableSE_low = (brdctl & BRDDAT5);
- *enableLVD_high = (brdctl & BRDDAT4);
- *enableLVD_low = (brdctl & BRDDAT3);
-}
-
-/*+F*************************************************************************
- * Function:
- * configure_termination
- *
- * Description:
- * Configures the termination settings on PCI adapters that have
- * SEEPROMs available.
- *-F*************************************************************************/
-static void
-configure_termination(struct aic7xxx_host *p)
-{
- int internal50_present = 0;
- int internal68_present = 0;
- int external_present = 0;
- int eprom_present = 0;
- int enableSE_low = 0;
- int enableSE_high = 0;
- int enableLVD_low = 0;
- int enableLVD_high = 0;
- unsigned char brddat = 0;
- unsigned char max_target = 0;
- unsigned char sxfrctl1 = aic_inb(p, SXFRCTL1);
-
- if (acquire_seeprom(p))
- {
- if (p->features & (AHC_WIDE|AHC_TWIN))
- max_target = 16;
- else
- max_target = 8;
- aic_outb(p, SEEMS | SEECS, SEECTL);
- sxfrctl1 &= ~STPWEN;
- /*
- * The termination/cable detection logic is split into three distinct
- * groups. Ultra2 and later controllers, 2940UW-Pro controllers, and
- * older 7850, 7860, 7870, 7880, and 7895 controllers. Each has its
- * own unique way of detecting their cables and writing the results
- * back to the card.
- */
- if (p->features & AHC_ULTRA2)
- {
- /*
- * As long as user hasn't overridden term settings, always check the
- * cable detection logic
- */
- if (aic7xxx_override_term == -1)
- {
- aic7xxx_ultra2_term_detect(p, &enableSE_low, &enableSE_high,
- &enableLVD_low, &enableLVD_high,
- &eprom_present);
- }
-
- /*
- * If the user is overriding settings, then they have been preserved
- * to here as fake adapter_control entries. Parse them and allow
- * them to override the detected settings (if we even did detection).
- */
- if (!(p->adapter_control & CFSEAUTOTERM))
- {
- enableSE_low = (p->adapter_control & CFSTERM);
- enableSE_high = (p->adapter_control & CFWSTERM);
- }
- if (!(p->adapter_control & CFAUTOTERM))
- {
- enableLVD_low = enableLVD_high = (p->adapter_control & CFLVDSTERM);
- }
-
- /*
- * Now take those settings that we have and translate them into the
- * values that must be written into the registers.
- *
- * Flash Enable = BRDDAT7
- * Secondary High Term Enable = BRDDAT6
- * Secondary Low Term Enable = BRDDAT5
- * LVD/Primary High Term Enable = BRDDAT4
- * LVD/Primary Low Term Enable = STPWEN bit in SXFRCTL1
- */
- if (enableLVD_low != 0)
- {
- sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_LVD;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) LVD/Primary Low byte termination "
- "Enabled\n", p->host_no);
- }
-
- if (enableLVD_high != 0)
- {
- brddat |= BRDDAT4;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) LVD/Primary High byte termination "
- "Enabled\n", p->host_no);
- }
-
- if (enableSE_low != 0)
- {
- brddat |= BRDDAT5;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Secondary Low byte termination "
- "Enabled\n", p->host_no);
- }
-
- if (enableSE_high != 0)
- {
- brddat |= BRDDAT6;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Secondary High byte termination "
- "Enabled\n", p->host_no);
- }
- }
- else if (p->features & AHC_NEW_AUTOTERM)
- {
- /*
- * The 50 pin connector termination is controlled by STPWEN in the
- * SXFRCTL1 register. Since the Adaptec docs typically say the
- * controller is not allowed to be in the middle of a cable and
- * this is the only connection on that stub of the bus, there is
- * no need to even check for narrow termination, it's simply
- * always on.
- */
- sxfrctl1 |= STPWEN;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Narrow channel termination Enabled\n",
- p->host_no);
-
- if (p->adapter_control & CFAUTOTERM)
- {
- aic2940_uwpro_wide_cable_detect(p, &internal68_present,
- &external_present,
- &eprom_present);
- printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Int-68 %s, "
- "Ext-68 %s)\n", p->host_no,
- "Don't Care",
- internal68_present ? "YES" : "NO",
- external_present ? "YES" : "NO");
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) EEPROM %s present.\n", p->host_no,
- eprom_present ? "is" : "is not");
- if (internal68_present && external_present)
- {
- brddat = 0;
- p->flags &= ~AHC_TERM_ENB_SE_HIGH;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Wide channel termination Disabled\n",
- p->host_no);
- }
- else
- {
- brddat = BRDDAT6;
- p->flags |= AHC_TERM_ENB_SE_HIGH;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Wide channel termination Enabled\n",
- p->host_no);
- }
- }
- else
- {
- /*
- * The termination of the Wide channel is done more like normal
- * though, and the setting of this termination is done by writing
- * either a 0 or 1 to BRDDAT6 of the BRDDAT register
- */
- if (p->adapter_control & CFWSTERM)
- {
- brddat = BRDDAT6;
- p->flags |= AHC_TERM_ENB_SE_HIGH;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Wide channel termination Enabled\n",
- p->host_no);
- }
- else
- {
- brddat = 0;
- }
- }
- }
- else
- {
- if (p->adapter_control & CFAUTOTERM)
- {
- if (p->flags & AHC_MOTHERBOARD)
- {
- printk(KERN_INFO "(scsi%d) Warning - detected auto-termination\n",
- p->host_no);
- printk(KERN_INFO "(scsi%d) Please verify driver detected settings "
- "are correct.\n", p->host_no);
- printk(KERN_INFO "(scsi%d) If not, then please properly set the "
- "device termination\n", p->host_no);
- printk(KERN_INFO "(scsi%d) in the Adaptec SCSI BIOS by hitting "
- "CTRL-A when prompted\n", p->host_no);
- printk(KERN_INFO "(scsi%d) during machine bootup.\n", p->host_no);
- }
- /* Configure auto termination. */
-
- if ( (p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870 )
- {
- aic787x_cable_detect(p, &internal50_present, &internal68_present,
- &external_present, &eprom_present);
- }
- else
- {
- aic785x_cable_detect(p, &internal50_present, &external_present,
- &eprom_present);
- }
-
- if (max_target <= 8)
- internal68_present = 0;
-
- if (max_target > 8)
- {
- printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Int-68 %s, "
- "Ext-68 %s)\n", p->host_no,
- internal50_present ? "YES" : "NO",
- internal68_present ? "YES" : "NO",
- external_present ? "YES" : "NO");
- }
- else
- {
- printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Ext-50 %s)\n",
- p->host_no,
- internal50_present ? "YES" : "NO",
- external_present ? "YES" : "NO");
- }
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) EEPROM %s present.\n", p->host_no,
- eprom_present ? "is" : "is not");
-
- /*
- * Now set the termination based on what we found. BRDDAT6
- * controls wide termination enable.
- * Flash Enable = BRDDAT7
- * SE High Term Enable = BRDDAT6
- */
- if (internal50_present && internal68_present && external_present)
- {
- printk(KERN_INFO "(scsi%d) Illegal cable configuration!! Only two\n",
- p->host_no);
- printk(KERN_INFO "(scsi%d) connectors on the SCSI controller may be "
- "in use at a time!\n", p->host_no);
- /*
- * Force termination (low and high byte) on. This is safer than
- * leaving it completely off, especially since this message comes
- * most often from motherboard controllers that don't even have 3
- * connectors, but instead are failing the cable detection.
- */
- internal50_present = external_present = 0;
- enableSE_high = enableSE_low = 1;
- }
-
- if ((max_target > 8) &&
- ((external_present == 0) || (internal68_present == 0)) )
- {
- brddat |= BRDDAT6;
- p->flags |= AHC_TERM_ENB_SE_HIGH;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n",
- p->host_no);
- }
-
- if ( ((internal50_present ? 1 : 0) +
- (internal68_present ? 1 : 0) +
- (external_present ? 1 : 0)) <= 1 )
- {
- sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_SE_LOW;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n",
- p->host_no);
- }
- }
- else /* p->adapter_control & CFAUTOTERM */
- {
- if (p->adapter_control & CFSTERM)
- {
- sxfrctl1 |= STPWEN;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n",
- p->host_no);
- }
-
- if (p->adapter_control & CFWSTERM)
- {
- brddat |= BRDDAT6;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n",
- p->host_no);
- }
- }
- }
-
- aic_outb(p, sxfrctl1, SXFRCTL1);
- write_brdctl(p, brddat);
- release_seeprom(p);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * detect_maxscb
- *
- * Description:
- * Detects the maximum number of SCBs for the controller and returns
- * the count and a mask in p (p->maxscbs, p->qcntmask).
- *-F*************************************************************************/
-static void
-detect_maxscb(struct aic7xxx_host *p)
-{
- int i;
-
- /*
- * It's possible that we've already done this for multichannel
- * adapters.
- */
- if (p->scb_data->maxhscbs == 0)
- {
- /*
- * We haven't initialized the SCB settings yet. Walk the SCBs to
- * determince how many there are.
- */
- aic_outb(p, 0, FREE_SCBH);
-
- for (i = 0; i < AIC7XXX_MAXSCB; i++)
- {
- aic_outb(p, i, SCBPTR);
- aic_outb(p, i, SCB_CONTROL);
- if (aic_inb(p, SCB_CONTROL) != i)
- break;
- aic_outb(p, 0, SCBPTR);
- if (aic_inb(p, SCB_CONTROL) != 0)
- break;
-
- aic_outb(p, i, SCBPTR);
- aic_outb(p, 0, SCB_CONTROL); /* Clear the control byte. */
- aic_outb(p, i + 1, SCB_NEXT); /* Set the next pointer. */
- aic_outb(p, SCB_LIST_NULL, SCB_TAG); /* Make the tag invalid. */
- aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS); /* no busy untagged */
- aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+1);/* targets active yet */
- aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+2);
- aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+3);
- }
-
- /* Make sure the last SCB terminates the free list. */
- aic_outb(p, i - 1, SCBPTR);
- aic_outb(p, SCB_LIST_NULL, SCB_NEXT);
-
- /* Ensure we clear the first (0) SCBs control byte. */
- aic_outb(p, 0, SCBPTR);
- aic_outb(p, 0, SCB_CONTROL);
-
- p->scb_data->maxhscbs = i;
- /*
- * Use direct indexing instead for speed
- */
- if ( i == AIC7XXX_MAXSCB )
- p->flags &= ~AHC_PAGESCBS;
- }
-
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_register
- *
- * Description:
- * Register a Adaptec aic7xxx chip SCSI controller with the kernel.
- *-F*************************************************************************/
-static int
-aic7xxx_register(struct scsi_host_template *template, struct aic7xxx_host *p,
- int reset_delay)
-{
- int i, result;
- int max_targets;
- int found = 1;
- unsigned char term, scsi_conf;
- struct Scsi_Host *host;
-
- host = p->host;
-
- p->scb_data->maxscbs = AIC7XXX_MAXSCB;
- host->can_queue = AIC7XXX_MAXSCB;
- host->cmd_per_lun = 3;
- host->sg_tablesize = AIC7XXX_MAX_SG;
- host->this_id = p->scsi_id;
- host->io_port = p->base;
- host->n_io_port = 0xFF;
- host->base = p->mbase;
- host->irq = p->irq;
- if (p->features & AHC_WIDE)
- {
- host->max_id = 16;
- }
- if (p->features & AHC_TWIN)
- {
- host->max_channel = 1;
- }
-
- p->host = host;
- p->host_no = host->host_no;
- host->unique_id = p->instance;
- p->isr_count = 0;
- p->next = NULL;
- p->completeq.head = NULL;
- p->completeq.tail = NULL;
- scbq_init(&p->scb_data->free_scbs);
- scbq_init(&p->waiting_scbs);
- INIT_LIST_HEAD(&p->aic_devs);
-
- /*
- * We currently have no commands of any type
- */
- p->qinfifonext = 0;
- p->qoutfifonext = 0;
-
- printk(KERN_INFO "(scsi%d) <%s> found at ", p->host_no,
- board_names[p->board_name_index]);
- switch(p->chip)
- {
- case (AHC_AIC7770|AHC_EISA):
- printk("EISA slot %d\n", p->pci_device_fn);
- break;
- case (AHC_AIC7770|AHC_VL):
- printk("VLB slot %d\n", p->pci_device_fn);
- break;
- default:
- printk("PCI %d/%d/%d\n", p->pci_bus, PCI_SLOT(p->pci_device_fn),
- PCI_FUNC(p->pci_device_fn));
- break;
- }
- if (p->features & AHC_TWIN)
- {
- printk(KERN_INFO "(scsi%d) Twin Channel, A SCSI ID %d, B SCSI ID %d, ",
- p->host_no, p->scsi_id, p->scsi_id_b);
- }
- else
- {
- char *channel;
-
- channel = "";
-
- if ((p->flags & AHC_MULTI_CHANNEL) != 0)
- {
- channel = " A";
-
- if ( (p->flags & (AHC_CHNLB|AHC_CHNLC)) != 0 )
- {
- channel = (p->flags & AHC_CHNLB) ? " B" : " C";
- }
- }
- if (p->features & AHC_WIDE)
- {
- printk(KERN_INFO "(scsi%d) Wide ", p->host_no);
- }
- else
- {
- printk(KERN_INFO "(scsi%d) Narrow ", p->host_no);
- }
- printk("Channel%s, SCSI ID=%d, ", channel, p->scsi_id);
- }
- aic_outb(p, 0, SEQ_FLAGS);
-
- detect_maxscb(p);
-
- printk("%d/%d SCBs\n", p->scb_data->maxhscbs, p->scb_data->maxscbs);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk(KERN_INFO "(scsi%d) BIOS %sabled, IO Port 0x%lx, IRQ %d\n",
- p->host_no, (p->flags & AHC_BIOS_ENABLED) ? "en" : "dis",
- p->base, p->irq);
- printk(KERN_INFO "(scsi%d) IO Memory at 0x%lx, MMAP Memory at %p\n",
- p->host_no, p->mbase, p->maddr);
- }
-
-#ifdef CONFIG_PCI
- /*
- * Now that we know our instance number, we can set the flags we need to
- * force termination if need be.
- */
- if (aic7xxx_stpwlev != -1)
- {
- /*
- * This option only applies to PCI controllers.
- */
- if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI)
- {
- unsigned char devconfig;
-
- pci_read_config_byte(p->pdev, DEVCONFIG, &devconfig);
- if ( (aic7xxx_stpwlev >> p->instance) & 0x01 )
- {
- devconfig |= STPWLEVEL;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("(scsi%d) Force setting STPWLEVEL bit\n", p->host_no);
- }
- else
- {
- devconfig &= ~STPWLEVEL;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("(scsi%d) Force clearing STPWLEVEL bit\n", p->host_no);
- }
- pci_write_config_byte(p->pdev, DEVCONFIG, devconfig);
- }
- }
-#endif
-
- /*
- * That took care of devconfig and stpwlev, now for the actual termination
- * settings.
- */
- if (aic7xxx_override_term != -1)
- {
- /*
- * Again, this only applies to PCI controllers. We don't have problems
- * with the termination on 274x controllers to the best of my knowledge.
- */
- if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI)
- {
- unsigned char term_override;
-
- term_override = ( (aic7xxx_override_term >> (p->instance * 4)) & 0x0f);
- p->adapter_control &=
- ~(CFSTERM|CFWSTERM|CFLVDSTERM|CFAUTOTERM|CFSEAUTOTERM);
- if ( (p->features & AHC_ULTRA2) && (term_override & 0x0c) )
- {
- p->adapter_control |= CFLVDSTERM;
- }
- if (term_override & 0x02)
- {
- p->adapter_control |= CFWSTERM;
- }
- if (term_override & 0x01)
- {
- p->adapter_control |= CFSTERM;
- }
- }
- }
-
- if ( (p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1) )
- {
- if (p->features & AHC_SPIOCAP)
- {
- if ( aic_inb(p, SPIOCAP) & SSPIOCPS )
- /*
- * Update the settings in sxfrctl1 to match the termination
- * settings.
- */
- configure_termination(p);
- }
- else if ((p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870)
- {
- configure_termination(p);
- }
- }
-
- /*
- * Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels
- */
- if (p->features & AHC_TWIN)
- {
- /* Select channel B */
- aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL);
-
- if ((p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1))
- term = (aic_inb(p, SXFRCTL1) & STPWEN);
- else
- term = ((p->flags & AHC_TERM_ENB_B) ? STPWEN : 0);
-
- aic_outb(p, p->scsi_id_b, SCSIID);
- scsi_conf = aic_inb(p, SCSICONF + 1);
- aic_outb(p, DFON | SPIOEN, SXFRCTL0);
- aic_outb(p, (scsi_conf & ENSPCHK) | aic7xxx_seltime | term |
- ENSTIMER | ACTNEGEN, SXFRCTL1);
- aic_outb(p, 0, SIMODE0);
- aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
- aic_outb(p, 0, SCSIRATE);
-
- /* Select channel A */
- aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL);
- }
-
- if (p->features & AHC_ULTRA2)
- {
- aic_outb(p, p->scsi_id, SCSIID_ULTRA2);
- }
- else
- {
- aic_outb(p, p->scsi_id, SCSIID);
- }
- if ((p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1))
- term = (aic_inb(p, SXFRCTL1) & STPWEN);
- else
- term = ((p->flags & (AHC_TERM_ENB_A|AHC_TERM_ENB_LVD)) ? STPWEN : 0);
- scsi_conf = aic_inb(p, SCSICONF);
- aic_outb(p, DFON | SPIOEN, SXFRCTL0);
- aic_outb(p, (scsi_conf & ENSPCHK) | aic7xxx_seltime | term |
- ENSTIMER | ACTNEGEN, SXFRCTL1);
- aic_outb(p, 0, SIMODE0);
- /*
- * If we are a cardbus adapter then don't enable SCSI reset detection.
- * We shouldn't likely be sharing SCSI busses with someone else, and
- * if we don't have a cable currently plugged into the controller then
- * we won't have a power source for the SCSI termination, which means
- * we'll see infinite incoming bus resets.
- */
- if(p->flags & AHC_NO_STPWEN)
- aic_outb(p, ENSELTIMO | ENSCSIPERR, SIMODE1);
- else
- aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
- aic_outb(p, 0, SCSIRATE);
- if ( p->features & AHC_ULTRA2)
- aic_outb(p, 0, SCSIOFFSET);
-
- /*
- * Look at the information that board initialization or the board
- * BIOS has left us. In the lower four bits of each target's
- * scratch space any value other than 0 indicates that we should
- * initiate synchronous transfers. If it's zero, the user or the
- * BIOS has decided to disable synchronous negotiation to that
- * target so we don't activate the needsdtr flag.
- */
- if ((p->features & (AHC_TWIN|AHC_WIDE)) == 0)
- {
- max_targets = 8;
- }
- else
- {
- max_targets = 16;
- }
-
- if (!(aic7xxx_no_reset))
- {
- /*
- * If we reset the bus, then clear the transfer settings, else leave
- * them be.
- */
- aic_outb(p, 0, ULTRA_ENB);
- aic_outb(p, 0, ULTRA_ENB + 1);
- p->ultraenb = 0;
- }
-
- /*
- * Allocate enough hardware scbs to handle the maximum number of
- * concurrent transactions we can have. We have to make sure that
- * the allocated memory is contiguous memory. The Linux kmalloc
- * routine should only allocate contiguous memory, but note that
- * this could be a problem if kmalloc() is changed.
- */
- {
- size_t array_size;
- unsigned int hscb_physaddr;
-
- array_size = p->scb_data->maxscbs * sizeof(struct aic7xxx_hwscb);
- if (p->scb_data->hscbs == NULL)
- {
- /* pci_alloc_consistent enforces the alignment already and
- * clears the area as well.
- */
- p->scb_data->hscbs = pci_alloc_consistent(p->pdev, array_size,
- &p->scb_data->hscbs_dma);
- /* We have to use pci_free_consistent, not kfree */
- p->scb_data->hscb_kmalloc_ptr = NULL;
- p->scb_data->hscbs_dma_len = array_size;
- }
- if (p->scb_data->hscbs == NULL)
- {
- printk("(scsi%d) Unable to allocate hardware SCB array; "
- "failing detection.\n", p->host_no);
- aic_outb(p, 0, SIMODE1);
- p->irq = 0;
- return(0);
- }
-
- hscb_physaddr = p->scb_data->hscbs_dma;
- aic_outb(p, hscb_physaddr & 0xFF, HSCB_ADDR);
- aic_outb(p, (hscb_physaddr >> 8) & 0xFF, HSCB_ADDR + 1);
- aic_outb(p, (hscb_physaddr >> 16) & 0xFF, HSCB_ADDR + 2);
- aic_outb(p, (hscb_physaddr >> 24) & 0xFF, HSCB_ADDR + 3);
-
- /* Set up the fifo areas at the same time */
- p->untagged_scbs = pci_alloc_consistent(p->pdev, 3*256, &p->fifo_dma);
- if (p->untagged_scbs == NULL)
- {
- printk("(scsi%d) Unable to allocate hardware FIFO arrays; "
- "failing detection.\n", p->host_no);
- p->irq = 0;
- return(0);
- }
-
- p->qoutfifo = p->untagged_scbs + 256;
- p->qinfifo = p->qoutfifo + 256;
- for (i = 0; i < 256; i++)
- {
- p->untagged_scbs[i] = SCB_LIST_NULL;
- p->qinfifo[i] = SCB_LIST_NULL;
- p->qoutfifo[i] = SCB_LIST_NULL;
- }
-
- hscb_physaddr = p->fifo_dma;
- aic_outb(p, hscb_physaddr & 0xFF, SCBID_ADDR);
- aic_outb(p, (hscb_physaddr >> 8) & 0xFF, SCBID_ADDR + 1);
- aic_outb(p, (hscb_physaddr >> 16) & 0xFF, SCBID_ADDR + 2);
- aic_outb(p, (hscb_physaddr >> 24) & 0xFF, SCBID_ADDR + 3);
- }
-
- /* The Q-FIFOs we just set up are all empty */
- aic_outb(p, 0, QINPOS);
- aic_outb(p, 0, KERNEL_QINPOS);
- aic_outb(p, 0, QOUTPOS);
-
- if(p->features & AHC_QUEUE_REGS)
- {
- aic_outb(p, SCB_QSIZE_256, QOFF_CTLSTA);
- aic_outb(p, 0, SDSCB_QOFF);
- aic_outb(p, 0, SNSCB_QOFF);
- aic_outb(p, 0, HNSCB_QOFF);
- }
-
- /*
- * We don't have any waiting selections or disconnected SCBs.
- */
- aic_outb(p, SCB_LIST_NULL, WAITING_SCBH);
- aic_outb(p, SCB_LIST_NULL, DISCONNECTED_SCBH);
-
- /*
- * Message out buffer starts empty
- */
- aic_outb(p, MSG_NOOP, MSG_OUT);
- aic_outb(p, MSG_NOOP, LAST_MSG);
-
- /*
- * Set all the other asundry items that haven't been set yet.
- * This includes just dumping init values to a lot of registers simply
- * to make sure they've been touched and are ready for use parity wise
- * speaking.
- */
- aic_outb(p, 0, TMODE_CMDADDR);
- aic_outb(p, 0, TMODE_CMDADDR + 1);
- aic_outb(p, 0, TMODE_CMDADDR + 2);
- aic_outb(p, 0, TMODE_CMDADDR + 3);
- aic_outb(p, 0, TMODE_CMDADDR_NEXT);
-
- /*
- * Link us into the list of valid hosts
- */
- p->next = first_aic7xxx;
- first_aic7xxx = p;
-
- /*
- * Allocate the first set of scbs for this controller. This is to stream-
- * line code elsewhere in the driver. If we have to check for the existence
- * of scbs in certain code sections, it slows things down. However, as
- * soon as we register the IRQ for this card, we could get an interrupt that
- * includes possibly the SCSI_RSTI interrupt. If we catch that interrupt
- * then we are likely to segfault if we don't have at least one chunk of
- * SCBs allocated or add checks all through the reset code to make sure
- * that the SCBs have been allocated which is an invalid running condition
- * and therefore I think it's preferable to simply pre-allocate the first
- * chunk of SCBs.
- */
- aic7xxx_allocate_scb(p);
-
- /*
- * Load the sequencer program, then re-enable the board -
- * resetting the AIC-7770 disables it, leaving the lights
- * on with nobody home.
- */
- aic7xxx_loadseq(p);
-
- /*
- * Make sure the AUTOFLUSHDIS bit is *not* set in the SBLKCTL register
- */
- aic_outb(p, aic_inb(p, SBLKCTL) & ~AUTOFLUSHDIS, SBLKCTL);
-
- if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
- {
- aic_outb(p, ENABLE, BCTL); /* Enable the boards BUS drivers. */
- }
-
- if ( !(aic7xxx_no_reset) )
- {
- if (p->features & AHC_TWIN)
- {
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Resetting channel B\n", p->host_no);
- aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL);
- aic7xxx_reset_current_bus(p);
- aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL);
- }
- /* Reset SCSI bus A. */
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- { /* In case we are a 3940, 3985, or 7895, print the right channel */
- char *channel = "";
- if (p->flags & AHC_MULTI_CHANNEL)
- {
- channel = " A";
- if (p->flags & (AHC_CHNLB|AHC_CHNLC))
- channel = (p->flags & AHC_CHNLB) ? " B" : " C";
- }
- printk(KERN_INFO "(scsi%d) Resetting channel%s\n", p->host_no, channel);
- }
-
- aic7xxx_reset_current_bus(p);
-
- }
- else
- {
- if (!reset_delay)
- {
- printk(KERN_INFO "(scsi%d) Not resetting SCSI bus. Note: Don't use "
- "the no_reset\n", p->host_no);
- printk(KERN_INFO "(scsi%d) option unless you have a verifiable need "
- "for it.\n", p->host_no);
- }
- }
-
- /*
- * Register IRQ with the kernel. Only allow sharing IRQs with
- * PCI devices.
- */
- if (!(p->chip & AHC_PCI))
- {
- result = (request_irq(p->irq, do_aic7xxx_isr, 0, "aic7xxx", p));
- }
- else
- {
- result = (request_irq(p->irq, do_aic7xxx_isr, IRQF_SHARED,
- "aic7xxx", p));
- if (result < 0)
- {
- result = (request_irq(p->irq, do_aic7xxx_isr, IRQF_DISABLED | IRQF_SHARED,
- "aic7xxx", p));
- }
- }
- if (result < 0)
- {
- printk(KERN_WARNING "(scsi%d) Couldn't register IRQ %d, ignoring "
- "controller.\n", p->host_no, p->irq);
- aic_outb(p, 0, SIMODE1);
- p->irq = 0;
- return (0);
- }
-
- if(aic_inb(p, INTSTAT) & INT_PEND)
- printk(INFO_LEAD "spurious interrupt during configuration, cleared.\n",
- p->host_no, -1, -1 , -1);
- aic7xxx_clear_intstat(p);
-
- unpause_sequencer(p, /* unpause_always */ TRUE);
-
- return (found);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_chip_reset
- *
- * Description:
- * Perform a chip reset on the aic7xxx SCSI controller. The controller
- * is paused upon return.
- *-F*************************************************************************/
-static int
-aic7xxx_chip_reset(struct aic7xxx_host *p)
-{
- unsigned char sblkctl;
- int wait;
-
- /*
- * For some 274x boards, we must clear the CHIPRST bit and pause
- * the sequencer. For some reason, this makes the driver work.
- */
- aic_outb(p, PAUSE | CHIPRST, HCNTRL);
-
- /*
- * In the future, we may call this function as a last resort for
- * error handling. Let's be nice and not do any unnecessary delays.
- */
- wait = 1000; /* 1 msec (1000 * 1 msec) */
- while (--wait && !(aic_inb(p, HCNTRL) & CHIPRSTACK))
- {
- udelay(1); /* 1 usec */
- }
-
- pause_sequencer(p);
-
- sblkctl = aic_inb(p, SBLKCTL) & (SELBUSB|SELWIDE);
- if (p->chip & AHC_PCI)
- sblkctl &= ~SELBUSB;
- switch( sblkctl )
- {
- case 0: /* normal narrow card */
- break;
- case 2: /* Wide card */
- p->features |= AHC_WIDE;
- break;
- case 8: /* Twin card */
- p->features |= AHC_TWIN;
- p->flags |= AHC_MULTI_CHANNEL;
- break;
- default: /* hmmm...we don't know what this is */
- printk(KERN_WARNING "aic7xxx: Unsupported adapter type %d, ignoring.\n",
- aic_inb(p, SBLKCTL) & 0x0a);
- return(-1);
- }
- return(0);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_alloc
- *
- * Description:
- * Allocate and initialize a host structure. Returns NULL upon error
- * and a pointer to a aic7xxx_host struct upon success.
- *-F*************************************************************************/
-static struct aic7xxx_host *
-aic7xxx_alloc(struct scsi_host_template *sht, struct aic7xxx_host *temp)
-{
- struct aic7xxx_host *p = NULL;
- struct Scsi_Host *host;
-
- /*
- * Allocate a storage area by registering us with the mid-level
- * SCSI layer.
- */
- host = scsi_register(sht, sizeof(struct aic7xxx_host));
-
- if (host != NULL)
- {
- p = (struct aic7xxx_host *) host->hostdata;
- memset(p, 0, sizeof(struct aic7xxx_host));
- *p = *temp;
- p->host = host;
-
- p->scb_data = kzalloc(sizeof(scb_data_type), GFP_ATOMIC);
- if (p->scb_data)
- {
- scbq_init (&p->scb_data->free_scbs);
- }
- else
- {
- /*
- * For some reason we don't have enough memory. Free the
- * allocated memory for the aic7xxx_host struct, and return NULL.
- */
- release_region(p->base, MAXREG - MINREG);
- scsi_unregister(host);
- return(NULL);
- }
- p->host_no = host->host_no;
- }
- return (p);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_free
- *
- * Description:
- * Frees and releases all resources associated with an instance of
- * the driver (struct aic7xxx_host *).
- *-F*************************************************************************/
-static void
-aic7xxx_free(struct aic7xxx_host *p)
-{
- int i;
-
- /*
- * Free the allocated hardware SCB space.
- */
- if (p->scb_data != NULL)
- {
- struct aic7xxx_scb_dma *scb_dma = NULL;
- if (p->scb_data->hscbs != NULL)
- {
- pci_free_consistent(p->pdev, p->scb_data->hscbs_dma_len,
- p->scb_data->hscbs, p->scb_data->hscbs_dma);
- p->scb_data->hscbs = p->scb_data->hscb_kmalloc_ptr = NULL;
- }
- /*
- * Free the driver SCBs. These were allocated on an as-need
- * basis. We allocated these in groups depending on how many
- * we could fit into a given amount of RAM. The tail SCB for
- * these allocations has a pointer to the alloced area.
- */
- for (i = 0; i < p->scb_data->numscbs; i++)
- {
- if (p->scb_data->scb_array[i]->scb_dma != scb_dma)
- {
- scb_dma = p->scb_data->scb_array[i]->scb_dma;
- pci_free_consistent(p->pdev, scb_dma->dma_len,
- (void *)((unsigned long)scb_dma->dma_address
- - scb_dma->dma_offset),
- scb_dma->dma_address);
- }
- kfree(p->scb_data->scb_array[i]->kmalloc_ptr);
- p->scb_data->scb_array[i] = NULL;
- }
-
- /*
- * Free the SCB data area.
- */
- kfree(p->scb_data);
- }
-
- pci_free_consistent(p->pdev, 3*256, (void *)p->untagged_scbs, p->fifo_dma);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_load_seeprom
- *
- * Description:
- * Load the seeprom and configure adapter and target settings.
- * Returns 1 if the load was successful and 0 otherwise.
- *-F*************************************************************************/
-static void
-aic7xxx_load_seeprom(struct aic7xxx_host *p, unsigned char *sxfrctl1)
-{
- int have_seeprom = 0;
- int i, max_targets, mask;
- unsigned char scsirate, scsi_conf;
- unsigned short scarray[128];
- struct seeprom_config *sc = (struct seeprom_config *) scarray;
-
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk(KERN_INFO "aic7xxx: Loading serial EEPROM...");
- }
- switch (p->chip)
- {
- case (AHC_AIC7770|AHC_EISA): /* None of these adapters have seeproms. */
- if (aic_inb(p, SCSICONF) & TERM_ENB)
- p->flags |= AHC_TERM_ENB_A;
- if ( (p->features & AHC_TWIN) && (aic_inb(p, SCSICONF + 1) & TERM_ENB) )
- p->flags |= AHC_TERM_ENB_B;
- break;
-
- case (AHC_AIC7770|AHC_VL):
- have_seeprom = read_284x_seeprom(p, (struct seeprom_config *) scarray);
- break;
-
- default:
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, p->sc_type);
- if (!have_seeprom)
- {
- if(p->sc_type == C46)
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, C56_66);
- else
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, C46);
- }
- if (!have_seeprom)
- {
- p->sc_size = 128;
- have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, p->sc_type);
- if (!have_seeprom)
- {
- if(p->sc_type == C46)
- have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, C56_66);
- else
- have_seeprom = read_seeprom(p, 4*(p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, p->sc_size, C46);
- }
- }
- break;
- }
-
- if (!have_seeprom)
- {
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("\naic7xxx: No SEEPROM available.\n");
- }
- p->flags |= AHC_NEWEEPROM_FMT;
- if (aic_inb(p, SCSISEQ) == 0)
- {
- p->flags |= AHC_USEDEFAULTS;
- p->flags &= ~AHC_BIOS_ENABLED;
- p->scsi_id = p->scsi_id_b = 7;
- *sxfrctl1 |= STPWEN;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("aic7xxx: Using default values.\n");
- }
- }
- else if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("aic7xxx: Using leftover BIOS values.\n");
- }
- if ( ((p->chip & ~AHC_CHIPID_MASK) == AHC_PCI) && (*sxfrctl1 & STPWEN) )
- {
- p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
- sc->adapter_control &= ~CFAUTOTERM;
- sc->adapter_control |= CFSTERM | CFWSTERM | CFLVDSTERM;
- }
- if (aic7xxx_extended)
- p->flags |= (AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B);
- else
- p->flags &= ~(AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B);
- }
- else
- {
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("done\n");
- }
-
- /*
- * Note things in our flags
- */
- p->flags |= AHC_SEEPROM_FOUND;
-
- /*
- * Update the settings in sxfrctl1 to match the termination settings.
- */
- *sxfrctl1 = 0;
-
- /*
- * Get our SCSI ID from the SEEPROM setting...
- */
- p->scsi_id = (sc->brtime_id & CFSCSIID);
-
- /*
- * First process the settings that are different between the VLB
- * and PCI adapter seeproms.
- */
- if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7770)
- {
- /* VLB adapter seeproms */
- if (sc->bios_control & CF284XEXTEND)
- p->flags |= AHC_EXTEND_TRANS_A;
-
- if (sc->adapter_control & CF284XSTERM)
- {
- *sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
- }
- }
- else
- {
- /* PCI adapter seeproms */
- if (sc->bios_control & CFEXTEND)
- p->flags |= AHC_EXTEND_TRANS_A;
- if (sc->bios_control & CFBIOSEN)
- p->flags |= AHC_BIOS_ENABLED;
- else
- p->flags &= ~AHC_BIOS_ENABLED;
-
- if (sc->adapter_control & CFSTERM)
- {
- *sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
- }
- }
- memcpy(&p->sc, sc, sizeof(struct seeprom_config));
- }
-
- p->discenable = 0;
-
- /*
- * Limit to 16 targets just in case. The 2842 for one is known to
- * blow the max_targets setting, future cards might also.
- */
- max_targets = ((p->features & (AHC_TWIN | AHC_WIDE)) ? 16 : 8);
-
- if (have_seeprom)
- {
- for (i = 0; i < max_targets; i++)
- {
- if( ((p->features & AHC_ULTRA) &&
- !(sc->adapter_control & CFULTRAEN) &&
- (sc->device_flags[i] & CFSYNCHISULTRA)) ||
- (sc->device_flags[i] & CFNEWULTRAFORMAT) )
- {
- p->flags |= AHC_NEWEEPROM_FMT;
- break;
- }
- }
- }
-
- for (i = 0; i < max_targets; i++)
- {
- mask = (0x01 << i);
- if (!have_seeprom)
- {
- if (aic_inb(p, SCSISEQ) != 0)
- {
- /*
- * OK...the BIOS set things up and left behind the settings we need.
- * Just make our sc->device_flags[i] entry match what the card has
- * set for this device.
- */
- p->discenable =
- ~(aic_inb(p, DISC_DSB) | (aic_inb(p, DISC_DSB + 1) << 8) );
- p->ultraenb =
- (aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8) );
- sc->device_flags[i] = (p->discenable & mask) ? CFDISC : 0;
- if (aic_inb(p, TARG_SCSIRATE + i) & WIDEXFER)
- sc->device_flags[i] |= CFWIDEB;
- if (p->features & AHC_ULTRA2)
- {
- if (aic_inb(p, TARG_OFFSET + i))
- {
- sc->device_flags[i] |= CFSYNCH;
- sc->device_flags[i] |= (aic_inb(p, TARG_SCSIRATE + i) & 0x07);
- if ( (aic_inb(p, TARG_SCSIRATE + i) & 0x18) == 0x18 )
- sc->device_flags[i] |= CFSYNCHISULTRA;
- }
- }
- else
- {
- if (aic_inb(p, TARG_SCSIRATE + i) & ~WIDEXFER)
- {
- sc->device_flags[i] |= CFSYNCH;
- if (p->features & AHC_ULTRA)
- sc->device_flags[i] |= ((p->ultraenb & mask) ?
- CFSYNCHISULTRA : 0);
- }
- }
- }
- else
- {
- /*
- * Assume the BIOS has NOT been run on this card and nothing between
- * the card and the devices is configured yet.
- */
- sc->device_flags[i] = CFDISC;
- if (p->features & AHC_WIDE)
- sc->device_flags[i] |= CFWIDEB;
- if (p->features & AHC_ULTRA3)
- sc->device_flags[i] |= 2;
- else if (p->features & AHC_ULTRA2)
- sc->device_flags[i] |= 3;
- else if (p->features & AHC_ULTRA)
- sc->device_flags[i] |= CFSYNCHISULTRA;
- sc->device_flags[i] |= CFSYNCH;
- aic_outb(p, 0, TARG_SCSIRATE + i);
- if (p->features & AHC_ULTRA2)
- aic_outb(p, 0, TARG_OFFSET + i);
- }
- }
- if (sc->device_flags[i] & CFDISC)
- {
- p->discenable |= mask;
- }
- if (p->flags & AHC_NEWEEPROM_FMT)
- {
- if ( !(p->features & AHC_ULTRA2) )
- {
- /*
- * I know of two different Ultra BIOSes that do this differently.
- * One on the Gigabyte 6BXU mb that wants flags[i] & CFXFER to
- * be == to 0x03 and SYNCHISULTRA to be true to mean 40MByte/s
- * while on the IBM Netfinity 5000 they want the same thing
- * to be something else, while flags[i] & CFXFER == 0x03 and
- * SYNCHISULTRA false should be 40MByte/s. So, we set both to
- * 40MByte/s and the lower speeds be damned. People will have
- * to select around the conversely mapped lower speeds in order
- * to select lower speeds on these boards.
- */
- if ( (sc->device_flags[i] & CFNEWULTRAFORMAT) &&
- ((sc->device_flags[i] & CFXFER) == 0x03) )
- {
- sc->device_flags[i] &= ~CFXFER;
- sc->device_flags[i] |= CFSYNCHISULTRA;
- }
- if (sc->device_flags[i] & CFSYNCHISULTRA)
- {
- p->ultraenb |= mask;
- }
- }
- else if ( !(sc->device_flags[i] & CFNEWULTRAFORMAT) &&
- (p->features & AHC_ULTRA2) &&
- (sc->device_flags[i] & CFSYNCHISULTRA) )
- {
- p->ultraenb |= mask;
- }
- }
- else if (sc->adapter_control & CFULTRAEN)
- {
- p->ultraenb |= mask;
- }
- if ( (sc->device_flags[i] & CFSYNCH) == 0)
- {
- sc->device_flags[i] &= ~CFXFER;
- p->ultraenb &= ~mask;
- p->user[i].offset = 0;
- p->user[i].period = 0;
- p->user[i].options = 0;
- }
- else
- {
- if (p->features & AHC_ULTRA3)
- {
- p->user[i].offset = MAX_OFFSET_ULTRA2;
- if( (sc->device_flags[i] & CFXFER) < 0x03 )
- {
- scsirate = (sc->device_flags[i] & CFXFER);
- p->user[i].options = MSG_EXT_PPR_OPTION_DT_CRC;
- }
- else
- {
- scsirate = (sc->device_flags[i] & CFXFER) |
- ((p->ultraenb & mask) ? 0x18 : 0x10);
- p->user[i].options = 0;
- }
- p->user[i].period = aic7xxx_find_period(p, scsirate,
- AHC_SYNCRATE_ULTRA3);
- }
- else if (p->features & AHC_ULTRA2)
- {
- p->user[i].offset = MAX_OFFSET_ULTRA2;
- scsirate = (sc->device_flags[i] & CFXFER) |
- ((p->ultraenb & mask) ? 0x18 : 0x10);
- p->user[i].options = 0;
- p->user[i].period = aic7xxx_find_period(p, scsirate,
- AHC_SYNCRATE_ULTRA2);
- }
- else
- {
- scsirate = (sc->device_flags[i] & CFXFER) << 4;
- p->user[i].options = 0;
- p->user[i].offset = MAX_OFFSET_8BIT;
- if (p->features & AHC_ULTRA)
- {
- short ultraenb;
- ultraenb = aic_inb(p, ULTRA_ENB) |
- (aic_inb(p, ULTRA_ENB + 1) << 8);
- p->user[i].period = aic7xxx_find_period(p, scsirate,
- (p->ultraenb & mask) ?
- AHC_SYNCRATE_ULTRA :
- AHC_SYNCRATE_FAST);
- }
- else
- p->user[i].period = aic7xxx_find_period(p, scsirate,
- AHC_SYNCRATE_FAST);
- }
- }
- if ( (sc->device_flags[i] & CFWIDEB) && (p->features & AHC_WIDE) )
- {
- p->user[i].width = MSG_EXT_WDTR_BUS_16_BIT;
- }
- else
- {
- p->user[i].width = MSG_EXT_WDTR_BUS_8_BIT;
- }
- }
- aic_outb(p, ~(p->discenable & 0xFF), DISC_DSB);
- aic_outb(p, ~((p->discenable >> 8) & 0xFF), DISC_DSB + 1);
-
- /*
- * We set the p->ultraenb from the SEEPROM to begin with, but now we make
- * it match what is already down in the card. If we are doing a reset
- * on the card then this will get put back to a default state anyway.
- * This allows us to not have to pre-emptively negotiate when using the
- * no_reset option.
- */
- if (p->features & AHC_ULTRA)
- p->ultraenb = aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8);
-
-
- scsi_conf = (p->scsi_id & HSCSIID);
-
- if(have_seeprom)
- {
- p->adapter_control = sc->adapter_control;
- p->bios_control = sc->bios_control;
-
- switch (p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7895:
- case AHC_AIC7896:
- case AHC_AIC7899:
- if (p->adapter_control & CFBPRIMARY)
- p->flags |= AHC_CHANNEL_B_PRIMARY;
- default:
- break;
- }
-
- if (sc->adapter_control & CFSPARITY)
- scsi_conf |= ENSPCHK;
- }
- else
- {
- scsi_conf |= ENSPCHK | RESET_SCSI;
- }
-
- /*
- * Only set the SCSICONF and SCSICONF + 1 registers if we are a PCI card.
- * The 2842 and 2742 cards already have these registers set and we don't
- * want to muck with them since we don't set all the bits they do.
- */
- if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI )
- {
- /* Set the host ID */
- aic_outb(p, scsi_conf, SCSICONF);
- /* In case we are a wide card */
- aic_outb(p, p->scsi_id, SCSICONF + 1);
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_configure_bugs
- *
- * Description:
- * Take the card passed in and set the appropriate bug flags based upon
- * the card model. Also make any changes needed to device registers or
- * PCI registers while we are here.
- *-F*************************************************************************/
-static void
-aic7xxx_configure_bugs(struct aic7xxx_host *p)
-{
- unsigned short tmp_word;
-
- switch(p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7860:
- p->bugs |= AHC_BUG_PCI_2_1_RETRY;
- /* fall through */
- case AHC_AIC7850:
- case AHC_AIC7870:
- p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI;
- break;
- case AHC_AIC7880:
- p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_PCI_2_1_RETRY |
- AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI;
- break;
- case AHC_AIC7890:
- p->bugs |= AHC_BUG_AUTOFLUSH | AHC_BUG_CACHETHEN;
- break;
- case AHC_AIC7892:
- p->bugs |= AHC_BUG_SCBCHAN_UPLOAD;
- break;
- case AHC_AIC7895:
- p->bugs |= AHC_BUG_TMODE_WIDEODD | AHC_BUG_PCI_2_1_RETRY |
- AHC_BUG_CACHETHEN | AHC_BUG_PCI_MWI;
- break;
- case AHC_AIC7896:
- p->bugs |= AHC_BUG_CACHETHEN_DIS;
- break;
- case AHC_AIC7899:
- p->bugs |= AHC_BUG_SCBCHAN_UPLOAD;
- break;
- default:
- /* Nothing to do */
- break;
- }
-
- /*
- * Now handle the bugs that require PCI register or card register tweaks
- */
- pci_read_config_word(p->pdev, PCI_COMMAND, &tmp_word);
- if(p->bugs & AHC_BUG_PCI_MWI)
- {
- tmp_word &= ~PCI_COMMAND_INVALIDATE;
- }
- else
- {
- tmp_word |= PCI_COMMAND_INVALIDATE;
- }
- pci_write_config_word(p->pdev, PCI_COMMAND, tmp_word);
-
- if(p->bugs & AHC_BUG_CACHETHEN)
- {
- aic_outb(p, aic_inb(p, DSCOMMAND0) & ~CACHETHEN, DSCOMMAND0);
- }
- else if (p->bugs & AHC_BUG_CACHETHEN_DIS)
- {
- aic_outb(p, aic_inb(p, DSCOMMAND0) | CACHETHEN, DSCOMMAND0);
- }
-
- return;
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_detect
- *
- * Description:
- * Try to detect and register an Adaptec 7770 or 7870 SCSI controller.
- *
- * XXX - This should really be called aic7xxx_probe(). A sequence of
- * probe(), attach()/detach(), and init() makes more sense than
- * one do-it-all function. This may be useful when (and if) the
- * mid-level SCSI code is overhauled.
- *-F*************************************************************************/
-static int
-aic7xxx_detect(struct scsi_host_template *template)
-{
- struct aic7xxx_host *temp_p = NULL;
- struct aic7xxx_host *current_p = NULL;
- struct aic7xxx_host *list_p = NULL;
- int found = 0;
-#if defined(__i386__) || defined(__alpha__)
- ahc_flag_type flags = 0;
- int type;
-#endif
- unsigned char sxfrctl1;
-#if defined(__i386__) || defined(__alpha__)
- unsigned char hcntrl, hostconf;
- unsigned int slot, base;
-#endif
-
-#ifdef MODULE
- /*
- * If we are called as a module, the aic7xxx pointer may not be null
- * and it would point to our bootup string, just like on the lilo
- * command line. IF not NULL, then process this config string with
- * aic7xxx_setup
- */
- if(aic7xxx)
- aic7xxx_setup(aic7xxx);
-#endif
-
- template->proc_name = "aic7xxx";
- template->sg_tablesize = AIC7XXX_MAX_SG;
-
-
-#ifdef CONFIG_PCI
- /*
- * PCI-bus probe.
- */
- {
- static struct
- {
- unsigned short vendor_id;
- unsigned short device_id;
- ahc_chip chip;
- ahc_flag_type flags;
- ahc_feature features;
- int board_name_index;
- unsigned short seeprom_size;
- unsigned short seeprom_type;
- } const aic_pdevs[] = {
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7810, AHC_NONE,
- AHC_FNONE, AHC_FENONE, 1,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7850, AHC_AIC7850,
- AHC_PAGESCBS, AHC_AIC7850_FE, 5,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7855, AHC_AIC7850,
- AHC_PAGESCBS, AHC_AIC7850_FE, 6,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7821, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7860_FE, 7,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_3860, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7860_FE, 7,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_38602, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7860_FE, 7,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_38602, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7860_FE, 7,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7860, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MOTHERBOARD,
- AHC_AIC7860_FE, 7,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7861, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7860_FE, 8,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7870, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MOTHERBOARD,
- AHC_AIC7870_FE, 9,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7871, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 10,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7872, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7870_FE, 11,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7873, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7870_FE, 12,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7874, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 13,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7880, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MOTHERBOARD,
- AHC_AIC7880_FE, 14,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7881, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 15,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7882, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7880_FE, 16,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7883, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7880_FE, 17,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7884, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7885, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7886, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7887, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE | AHC_NEW_AUTOTERM, 19,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7888, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7895, AHC_AIC7895,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7895_FE, 20,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7890, AHC_AIC7890,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7890_FE, 21,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7890B, AHC_AIC7890,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7890_FE, 21,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_2930U2, AHC_AIC7890,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7890_FE, 22,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_2940U2, AHC_AIC7890,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7890_FE, 23,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7896, AHC_AIC7896,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7896_FE, 24,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_3940U2, AHC_AIC7896,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7896_FE, 25,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_3950U2D, AHC_AIC7896,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7896_FE, 26,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_1480A, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_NO_STPWEN,
- AHC_AIC7860_FE, 27,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892A, AHC_AIC7892,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7892_FE, 28,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892B, AHC_AIC7892,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7892_FE, 28,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892D, AHC_AIC7892,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7892_FE, 28,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7892P, AHC_AIC7892,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
- AHC_AIC7892_FE, 28,
- 32, C46 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899A, AHC_AIC7899,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7899_FE, 29,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899B, AHC_AIC7899,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7899_FE, 29,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899D, AHC_AIC7899,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7899_FE, 29,
- 32, C56_66 },
- {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7899P, AHC_AIC7899,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
- AHC_AIC7899_FE, 29,
- 32, C56_66 },
- };
-
- unsigned short command;
- unsigned int devconfig, i, oldverbose;
- struct pci_dev *pdev = NULL;
-
- for (i = 0; i < ARRAY_SIZE(aic_pdevs); i++)
- {
- pdev = NULL;
- while ((pdev = pci_get_device(aic_pdevs[i].vendor_id,
- aic_pdevs[i].device_id,
- pdev))) {
- if (pci_enable_device(pdev))
- continue;
- if ( i == 0 ) /* We found one, but it's the 7810 RAID cont. */
- {
- if (aic7xxx_verbose & (VERBOSE_PROBE|VERBOSE_PROBE2))
- {
- printk(KERN_INFO "aic7xxx: The 7810 RAID controller is not "
- "supported by\n");
- printk(KERN_INFO " this driver, we are ignoring it.\n");
- }
- }
- else if ( (temp_p = kzalloc(sizeof(struct aic7xxx_host),
- GFP_ATOMIC)) != NULL )
- {
- temp_p->chip = aic_pdevs[i].chip | AHC_PCI;
- temp_p->flags = aic_pdevs[i].flags;
- temp_p->features = aic_pdevs[i].features;
- temp_p->board_name_index = aic_pdevs[i].board_name_index;
- temp_p->sc_size = aic_pdevs[i].seeprom_size;
- temp_p->sc_type = aic_pdevs[i].seeprom_type;
-
- /*
- * Read sundry information from PCI BIOS.
- */
- temp_p->irq = pdev->irq;
- temp_p->pdev = pdev;
- temp_p->pci_bus = pdev->bus->number;
- temp_p->pci_device_fn = pdev->devfn;
- temp_p->base = pci_resource_start(pdev, 0);
- temp_p->mbase = pci_resource_start(pdev, 1);
- current_p = list_p;
- while(current_p && temp_p)
- {
- if ( ((current_p->pci_bus == temp_p->pci_bus) &&
- (current_p->pci_device_fn == temp_p->pci_device_fn)) ||
- (temp_p->base && (current_p->base == temp_p->base)) ||
- (temp_p->mbase && (current_p->mbase == temp_p->mbase)) )
- {
- /* duplicate PCI entry, skip it */
- kfree(temp_p);
- temp_p = NULL;
- continue;
- }
- current_p = current_p->next;
- }
- if(pci_request_regions(temp_p->pdev, "aic7xxx"))
- {
- printk("aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk("aic7xxx: I/O ports already in use, ignoring.\n");
- kfree(temp_p);
- continue;
- }
-
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at PCI %d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn));
- pci_read_config_word(pdev, PCI_COMMAND, &command);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("aic7xxx: Initial PCI_COMMAND value was 0x%x\n",
- (int)command);
- }
-#ifdef AIC7XXX_STRICT_PCI_SETUP
- command |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
- PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
-#else
- command |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
-#endif
- command &= ~PCI_COMMAND_INVALIDATE;
- if (aic7xxx_pci_parity == 0)
- command &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
- pci_write_config_word(pdev, PCI_COMMAND, command);
-#ifdef AIC7XXX_STRICT_PCI_SETUP
- pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk("aic7xxx: Initial DEVCONFIG value was 0x%x\n", devconfig);
- }
- devconfig |= 0x80000040;
- pci_write_config_dword(pdev, DEVCONFIG, devconfig);
-#endif /* AIC7XXX_STRICT_PCI_SETUP */
-
- temp_p->unpause = INTEN;
- temp_p->pause = temp_p->unpause | PAUSE;
- if ( ((temp_p->base == 0) &&
- (temp_p->mbase == 0)) ||
- (temp_p->irq == 0) )
- {
- printk("aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk("aic7xxx: Controller disabled by BIOS, ignoring.\n");
- goto skip_pci_controller;
- }
-
-#ifdef MMAPIO
- if ( !(temp_p->base) || !(temp_p->flags & AHC_MULTI_CHANNEL) ||
- ((temp_p->chip != (AHC_AIC7870 | AHC_PCI)) &&
- (temp_p->chip != (AHC_AIC7880 | AHC_PCI))) )
- {
- temp_p->maddr = ioremap_nocache(temp_p->mbase, 256);
- if(temp_p->maddr)
- {
- /*
- * We need to check the I/O with the MMAPed address. Some machines
- * simply fail to work with MMAPed I/O and certain controllers.
- */
- if(aic_inb(temp_p, HCNTRL) == 0xff)
- {
- /*
- * OK.....we failed our test....go back to programmed I/O
- */
- printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk(KERN_INFO "aic7xxx: MMAPed I/O failed, reverting to "
- "Programmed I/O.\n");
- iounmap(temp_p->maddr);
- temp_p->maddr = NULL;
- if(temp_p->base == 0)
- {
- printk("aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk("aic7xxx: Controller disabled by BIOS, ignoring.\n");
- goto skip_pci_controller;
- }
- }
- }
- }
-#endif
-
- /*
- * We HAVE to make sure the first pause_sequencer() and all other
- * subsequent I/O that isn't PCI config space I/O takes place
- * after the MMAPed I/O region is configured and tested. The
- * problem is the PowerPC architecture that doesn't support
- * programmed I/O at all, so we have to have the MMAP I/O set up
- * for this pause to even work on those machines.
- */
- pause_sequencer(temp_p);
-
- /*
- * Clear out any pending PCI error status messages. Also set
- * verbose to 0 so that we don't emit strange PCI error messages
- * while cleaning out the current status bits.
- */
- oldverbose = aic7xxx_verbose;
- aic7xxx_verbose = 0;
- aic7xxx_pci_intr(temp_p);
- aic7xxx_verbose = oldverbose;
-
- temp_p->bios_address = 0;
-
- /*
- * Remember how the card was setup in case there is no seeprom.
- */
- if (temp_p->features & AHC_ULTRA2)
- temp_p->scsi_id = aic_inb(temp_p, SCSIID_ULTRA2) & OID;
- else
- temp_p->scsi_id = aic_inb(temp_p, SCSIID) & OID;
- /*
- * Get current termination setting
- */
- sxfrctl1 = aic_inb(temp_p, SXFRCTL1);
-
- if (aic7xxx_chip_reset(temp_p) == -1)
- {
- goto skip_pci_controller;
- }
- /*
- * Very quickly put the term setting back into the register since
- * the chip reset may cause odd things to happen. This is to keep
- * LVD busses with lots of drives from draining the power out of
- * the diffsense line before we get around to running the
- * configure_termination() function. Also restore the STPWLEVEL
- * bit of DEVCONFIG
- */
- aic_outb(temp_p, sxfrctl1, SXFRCTL1);
- pci_write_config_dword(temp_p->pdev, DEVCONFIG, devconfig);
- sxfrctl1 &= STPWEN;
-
- /*
- * We need to set the CHNL? assignments before loading the SEEPROM
- * The 3940 and 3985 cards (original stuff, not any of the later
- * stuff) are 7870 and 7880 class chips. The Ultra2 stuff falls
- * under 7896 and 7897. The 7895 is in a class by itself :)
- */
- switch (temp_p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7870: /* 3840 / 3985 */
- case AHC_AIC7880: /* 3840 UW / 3985 UW */
- if(temp_p->flags & AHC_MULTI_CHANNEL)
- {
- switch(PCI_SLOT(temp_p->pci_device_fn))
- {
- case 5:
- temp_p->flags |= AHC_CHNLB;
- break;
- case 8:
- temp_p->flags |= AHC_CHNLB;
- break;
- case 12:
- temp_p->flags |= AHC_CHNLC;
- break;
- default:
- break;
- }
- }
- break;
-
- case AHC_AIC7895: /* 7895 */
- case AHC_AIC7896: /* 7896/7 */
- case AHC_AIC7899: /* 7899 */
- if (PCI_FUNC(pdev->devfn) != 0)
- {
- temp_p->flags |= AHC_CHNLB;
- }
- /*
- * The 7895 is the only chipset that sets the SCBSIZE32 param
- * in the DEVCONFIG register. The Ultra2 chipsets use
- * the DSCOMMAND0 register instead.
- */
- if ((temp_p->chip & AHC_CHIPID_MASK) == AHC_AIC7895)
- {
- pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
- devconfig |= SCBSIZE32;
- pci_write_config_dword(pdev, DEVCONFIG, devconfig);
- }
- break;
- default:
- break;
- }
-
- /*
- * Loading of the SEEPROM needs to come after we've set the flags
- * to indicate possible CHNLB and CHNLC assigments. Otherwise,
- * on 394x and 398x cards we'll end up reading the wrong settings
- * for channels B and C
- */
- switch (temp_p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7892:
- case AHC_AIC7899:
- aic_outb(temp_p, 0, SCAMCTL);
- /*
- * Switch to the alt mode of the chip...
- */
- aic_outb(temp_p, aic_inb(temp_p, SFUNCT) | ALT_MODE, SFUNCT);
- /*
- * Set our options...the last two items set our CRC after x byte
- * count in target mode...
- */
- aic_outb(temp_p, AUTO_MSGOUT_DE | DIS_MSGIN_DUALEDGE, OPTIONMODE);
- aic_outb(temp_p, 0x00, 0x0b);
- aic_outb(temp_p, 0x10, 0x0a);
- /*
- * switch back to normal mode...
- */
- aic_outb(temp_p, aic_inb(temp_p, SFUNCT) & ~ALT_MODE, SFUNCT);
- aic_outb(temp_p, CRCVALCHKEN | CRCENDCHKEN | CRCREQCHKEN |
- TARGCRCENDEN | TARGCRCCNTEN,
- CRCCONTROL1);
- aic_outb(temp_p, ((aic_inb(temp_p, DSCOMMAND0) | USCBSIZE32 |
- MPARCKEN | CIOPARCKEN | CACHETHEN) &
- ~DPARCKEN), DSCOMMAND0);
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- break;
- case AHC_AIC7890:
- case AHC_AIC7896:
- aic_outb(temp_p, 0, SCAMCTL);
- aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
- CACHETHEN | MPARCKEN | USCBSIZE32 |
- CIOPARCKEN) & ~DPARCKEN, DSCOMMAND0);
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- break;
- case AHC_AIC7850:
- case AHC_AIC7860:
- /*
- * Set the DSCOMMAND0 register on these cards different from
- * on the 789x cards. Also, read the SEEPROM as well.
- */
- aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
- CACHETHEN | MPARCKEN) & ~DPARCKEN,
- DSCOMMAND0);
- /* FALLTHROUGH */
- default:
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- break;
- case AHC_AIC7880:
- /*
- * Check the rev of the chipset before we change DSCOMMAND0
- */
- pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
- if ((devconfig & 0xff) >= 1)
- {
- aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
- CACHETHEN | MPARCKEN) & ~DPARCKEN,
- DSCOMMAND0);
- }
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- break;
- }
-
-
- /*
- * and then we need another switch based on the type in order to
- * make sure the channel B primary flag is set properly on 7895
- * controllers....Arrrgggghhh!!! We also have to catch the fact
- * that when you disable the BIOS on the 7895 on the Intel DK440LX
- * motherboard, and possibly others, it only sets the BIOS disabled
- * bit on the A channel...I think I'm starting to lean towards
- * going postal....
- */
- switch(temp_p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7895:
- case AHC_AIC7896:
- case AHC_AIC7899:
- current_p = list_p;
- while(current_p != NULL)
- {
- if ( (current_p->pci_bus == temp_p->pci_bus) &&
- (PCI_SLOT(current_p->pci_device_fn) ==
- PCI_SLOT(temp_p->pci_device_fn)) )
- {
- if ( PCI_FUNC(current_p->pci_device_fn) == 0 )
- {
- temp_p->flags |=
- (current_p->flags & AHC_CHANNEL_B_PRIMARY);
- temp_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS);
- temp_p->flags |=
- (current_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS));
- }
- else
- {
- current_p->flags |=
- (temp_p->flags & AHC_CHANNEL_B_PRIMARY);
- current_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS);
- current_p->flags |=
- (temp_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS));
- }
- }
- current_p = current_p->next;
- }
- break;
- default:
- break;
- }
-
- /*
- * We only support external SCB RAM on the 7895/6/7 chipsets.
- * We could support it on the 7890/1 easy enough, but I don't
- * know of any 7890/1 based cards that have it. I do know
- * of 7895/6/7 cards that have it and they work properly.
- */
- switch(temp_p->chip & AHC_CHIPID_MASK)
- {
- default:
- break;
- case AHC_AIC7895:
- case AHC_AIC7896:
- case AHC_AIC7899:
- pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
- if (temp_p->features & AHC_ULTRA2)
- {
- if ( (aic_inb(temp_p, DSCOMMAND0) & RAMPSM_ULTRA2) &&
- (aic7xxx_scbram) )
- {
- aic_outb(temp_p,
- aic_inb(temp_p, DSCOMMAND0) & ~SCBRAMSEL_ULTRA2,
- DSCOMMAND0);
- temp_p->flags |= AHC_EXTERNAL_SRAM;
- devconfig |= EXTSCBPEN;
- }
- else if (aic_inb(temp_p, DSCOMMAND0) & RAMPSM_ULTRA2)
- {
- printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk("aic7xxx: external SCB RAM detected, "
- "but not enabled\n");
- }
- }
- else
- {
- if ((devconfig & RAMPSM) && (aic7xxx_scbram))
- {
- devconfig &= ~SCBRAMSEL;
- devconfig |= EXTSCBPEN;
- temp_p->flags |= AHC_EXTERNAL_SRAM;
- }
- else if (devconfig & RAMPSM)
- {
- printk(KERN_INFO "aic7xxx: <%s> at PCI %d/%d/%d\n",
- board_names[aic_pdevs[i].board_name_index],
- temp_p->pci_bus,
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
- printk("aic7xxx: external SCB RAM detected, "
- "but not enabled\n");
- }
- }
- pci_write_config_dword(pdev, DEVCONFIG, devconfig);
- if ( (temp_p->flags & AHC_EXTERNAL_SRAM) &&
- (temp_p->flags & AHC_CHNLB) )
- aic_outb(temp_p, 1, CCSCBBADDR);
- break;
- }
-
- /*
- * Take the LED out of diagnostic mode
- */
- aic_outb(temp_p,
- (aic_inb(temp_p, SBLKCTL) & ~(DIAGLEDEN | DIAGLEDON)),
- SBLKCTL);
-
- /*
- * We don't know where this is set in the SEEPROM or by the
- * BIOS, so we default to 100%. On Ultra2 controllers, use 75%
- * instead.
- */
- if (temp_p->features & AHC_ULTRA2)
- {
- aic_outb(temp_p, RD_DFTHRSH_MAX | WR_DFTHRSH_MAX, DFF_THRSH);
- }
- else
- {
- aic_outb(temp_p, DFTHRSH_100, DSPCISTATUS);
- }
-
- /*
- * Call our function to fixup any bugs that exist on this chipset.
- * This may muck with PCI settings and other device settings, so
- * make sure it's after all the other PCI and device register
- * tweaks so it can back out bad settings on specific broken cards.
- */
- aic7xxx_configure_bugs(temp_p);
-
- /* Hold a pci device reference */
- pci_dev_get(temp_p->pdev);
-
- if ( list_p == NULL )
- {
- list_p = current_p = temp_p;
- }
- else
- {
- current_p = list_p;
- while(current_p->next != NULL)
- current_p = current_p->next;
- current_p->next = temp_p;
- }
- temp_p->next = NULL;
- found++;
- continue;
-skip_pci_controller:
-#ifdef CONFIG_PCI
- pci_release_regions(temp_p->pdev);
-#endif
- kfree(temp_p);
- } /* Found an Adaptec PCI device. */
- else /* Well, we found one, but we couldn't get any memory */
- {
- printk("aic7xxx: Found <%s>\n",
- board_names[aic_pdevs[i].board_name_index]);
- printk(KERN_INFO "aic7xxx: Unable to allocate device memory, "
- "skipping.\n");
- }
- } /* while(pdev=....) */
- } /* for PCI_DEVICES */
- }
-#endif /* CONFIG_PCI */
-
-#if defined(__i386__) || defined(__alpha__)
- /*
- * EISA/VL-bus card signature probe.
- */
- slot = MINSLOT;
- while ( (slot <= MAXSLOT) &&
- !(aic7xxx_no_probe) )
- {
- base = SLOTBASE(slot) + MINREG;
-
- if (!request_region(base, MAXREG - MINREG, "aic7xxx"))
- {
- /*
- * Some other driver has staked a
- * claim to this i/o region already.
- */
- slot++;
- continue; /* back to the beginning of the for loop */
- }
- flags = 0;
- type = aic7xxx_probe(slot, base + AHC_HID0, &flags);
- if (type == -1)
- {
- release_region(base, MAXREG - MINREG);
- slot++;
- continue;
- }
- temp_p = kmalloc(sizeof(struct aic7xxx_host), GFP_ATOMIC);
- if (temp_p == NULL)
- {
- printk(KERN_WARNING "aic7xxx: Unable to allocate device space.\n");
- release_region(base, MAXREG - MINREG);
- slot++;
- continue; /* back to the beginning of the while loop */
- }
-
- /*
- * Pause the card preserving the IRQ type. Allow the operator
- * to override the IRQ trigger.
- */
- if (aic7xxx_irq_trigger == 1)
- hcntrl = IRQMS; /* Level */
- else if (aic7xxx_irq_trigger == 0)
- hcntrl = 0; /* Edge */
- else
- hcntrl = inb(base + HCNTRL) & IRQMS; /* Default */
- memset(temp_p, 0, sizeof(struct aic7xxx_host));
- temp_p->unpause = hcntrl | INTEN;
- temp_p->pause = hcntrl | PAUSE | INTEN;
- temp_p->base = base;
- temp_p->mbase = 0;
- temp_p->maddr = NULL;
- temp_p->pci_bus = 0;
- temp_p->pci_device_fn = slot;
- aic_outb(temp_p, hcntrl | PAUSE, HCNTRL);
- while( (aic_inb(temp_p, HCNTRL) & PAUSE) == 0 ) ;
- if (aic7xxx_chip_reset(temp_p) == -1)
- temp_p->irq = 0;
- else
- temp_p->irq = aic_inb(temp_p, INTDEF) & 0x0F;
- temp_p->flags |= AHC_PAGESCBS;
-
- switch (temp_p->irq)
- {
- case 9:
- case 10:
- case 11:
- case 12:
- case 14:
- case 15:
- break;
-
- default:
- printk(KERN_WARNING "aic7xxx: Host adapter uses unsupported IRQ "
- "level %d, ignoring.\n", temp_p->irq);
- kfree(temp_p);
- release_region(base, MAXREG - MINREG);
- slot++;
- continue; /* back to the beginning of the while loop */
- }
-
- /*
- * We are committed now, everything has been checked and this card
- * has been found, now we just set it up
- */
-
- /*
- * Insert our new struct into the list at the end
- */
- if (list_p == NULL)
- {
- list_p = current_p = temp_p;
- }
- else
- {
- current_p = list_p;
- while (current_p->next != NULL)
- current_p = current_p->next;
- current_p->next = temp_p;
- }
-
- switch (type)
- {
- case 0:
- temp_p->board_name_index = 2;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at EISA %d\n",
- board_names[2], slot);
- /* FALLTHROUGH */
- case 1:
- {
- temp_p->chip = AHC_AIC7770 | AHC_EISA;
- temp_p->features |= AHC_AIC7770_FE;
- temp_p->bios_control = aic_inb(temp_p, HA_274_BIOSCTRL);
-
- /*
- * Get the primary channel information. Right now we don't
- * do anything with this, but someday we will be able to inform
- * the mid-level SCSI code which channel is primary.
- */
- if (temp_p->board_name_index == 0)
- {
- temp_p->board_name_index = 3;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at EISA %d\n",
- board_names[3], slot);
- }
- if (temp_p->bios_control & CHANNEL_B_PRIMARY)
- {
- temp_p->flags |= AHC_CHANNEL_B_PRIMARY;
- }
-
- if ((temp_p->bios_control & BIOSMODE) == BIOSDISABLED)
- {
- temp_p->flags &= ~AHC_BIOS_ENABLED;
- }
- else
- {
- temp_p->flags &= ~AHC_USEDEFAULTS;
- temp_p->flags |= AHC_BIOS_ENABLED;
- if ( (temp_p->bios_control & 0x20) == 0 )
- {
- temp_p->bios_address = 0xcc000;
- temp_p->bios_address += (0x4000 * (temp_p->bios_control & 0x07));
- }
- else
- {
- temp_p->bios_address = 0xd0000;
- temp_p->bios_address += (0x8000 * (temp_p->bios_control & 0x06));
- }
- }
- temp_p->adapter_control = aic_inb(temp_p, SCSICONF) << 8;
- temp_p->adapter_control |= aic_inb(temp_p, SCSICONF + 1);
- if (temp_p->features & AHC_WIDE)
- {
- temp_p->scsi_id = temp_p->adapter_control & HWSCSIID;
- temp_p->scsi_id_b = temp_p->scsi_id;
- }
- else
- {
- temp_p->scsi_id = (temp_p->adapter_control >> 8) & HSCSIID;
- temp_p->scsi_id_b = temp_p->adapter_control & HSCSIID;
- }
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- break;
- }
-
- case 2:
- case 3:
- temp_p->chip = AHC_AIC7770 | AHC_VL;
- temp_p->features |= AHC_AIC7770_FE;
- if (type == 2)
- temp_p->flags |= AHC_BIOS_ENABLED;
- else
- temp_p->flags &= ~AHC_BIOS_ENABLED;
- if (aic_inb(temp_p, SCSICONF) & TERM_ENB)
- sxfrctl1 = STPWEN;
- aic7xxx_load_seeprom(temp_p, &sxfrctl1);
- temp_p->board_name_index = 4;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at VLB %d\n",
- board_names[2], slot);
- switch( aic_inb(temp_p, STATUS_2840) & BIOS_SEL )
- {
- case 0x00:
- temp_p->bios_address = 0xe0000;
- break;
- case 0x20:
- temp_p->bios_address = 0xc8000;
- break;
- case 0x40:
- temp_p->bios_address = 0xd0000;
- break;
- case 0x60:
- temp_p->bios_address = 0xd8000;
- break;
- default:
- break; /* can't get here */
- }
- break;
-
- default: /* Won't get here. */
- break;
- }
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk(KERN_INFO "aic7xxx: BIOS %sabled, IO Port 0x%lx, IRQ %d (%s)\n",
- (temp_p->flags & AHC_USEDEFAULTS) ? "dis" : "en", temp_p->base,
- temp_p->irq,
- (temp_p->pause & IRQMS) ? "level sensitive" : "edge triggered");
- printk(KERN_INFO "aic7xxx: Extended translation %sabled.\n",
- (temp_p->flags & AHC_EXTEND_TRANS_A) ? "en" : "dis");
- }
-
- /*
- * All the 7770 based chipsets have this bug
- */
- temp_p->bugs |= AHC_BUG_TMODE_WIDEODD;
-
- /*
- * Set the FIFO threshold and the bus off time.
- */
- hostconf = aic_inb(temp_p, HOSTCONF);
- aic_outb(temp_p, hostconf & DFTHRSH, BUSSPD);
- aic_outb(temp_p, (hostconf << 2) & BOFF, BUSTIME);
- slot++;
- found++;
- }
-
-#endif /* defined(__i386__) || defined(__alpha__) */
-
- /*
- * Now, we re-order the probed devices by BIOS address and BUS class.
- * In general, we follow this algorithm to make the adapters show up
- * in the same order under linux that the computer finds them.
- * 1: All VLB/EISA cards with BIOS_ENABLED first, according to BIOS
- * address, going from lowest to highest.
- * 2: All PCI controllers with BIOS_ENABLED next, according to BIOS
- * address, going from lowest to highest.
- * 3: Remaining VLB/EISA controllers going in slot order.
- * 4: Remaining PCI controllers, going in PCI device order (reversible)
- */
-
- {
- struct aic7xxx_host *sort_list[4] = { NULL, NULL, NULL, NULL };
- struct aic7xxx_host *vlb, *pci;
- struct aic7xxx_host *prev_p;
- struct aic7xxx_host *p;
- unsigned char left;
-
- prev_p = vlb = pci = NULL;
-
- temp_p = list_p;
- while (temp_p != NULL)
- {
- switch(temp_p->chip & ~AHC_CHIPID_MASK)
- {
- case AHC_EISA:
- case AHC_VL:
- {
- p = temp_p;
- if (p->flags & AHC_BIOS_ENABLED)
- vlb = sort_list[0];
- else
- vlb = sort_list[2];
-
- if (vlb == NULL)
- {
- vlb = temp_p;
- temp_p = temp_p->next;
- vlb->next = NULL;
- }
- else
- {
- current_p = vlb;
- prev_p = NULL;
- while ( (current_p != NULL) &&
- (current_p->bios_address < temp_p->bios_address))
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- if (prev_p != NULL)
- {
- prev_p->next = temp_p;
- temp_p = temp_p->next;
- prev_p->next->next = current_p;
- }
- else
- {
- vlb = temp_p;
- temp_p = temp_p->next;
- vlb->next = current_p;
- }
- }
-
- if (p->flags & AHC_BIOS_ENABLED)
- sort_list[0] = vlb;
- else
- sort_list[2] = vlb;
-
- break;
- }
- default: /* All PCI controllers fall through to default */
- {
-
- p = temp_p;
- if (p->flags & AHC_BIOS_ENABLED)
- pci = sort_list[1];
- else
- pci = sort_list[3];
-
- if (pci == NULL)
- {
- pci = temp_p;
- temp_p = temp_p->next;
- pci->next = NULL;
- }
- else
- {
- current_p = pci;
- prev_p = NULL;
- if (!aic7xxx_reverse_scan)
- {
- while ( (current_p != NULL) &&
- ( (PCI_SLOT(current_p->pci_device_fn) |
- (current_p->pci_bus << 8)) <
- (PCI_SLOT(temp_p->pci_device_fn) |
- (temp_p->pci_bus << 8)) ) )
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- }
- else
- {
- while ( (current_p != NULL) &&
- ( (PCI_SLOT(current_p->pci_device_fn) |
- (current_p->pci_bus << 8)) >
- (PCI_SLOT(temp_p->pci_device_fn) |
- (temp_p->pci_bus << 8)) ) )
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- }
- /*
- * Are we dealing with a 7895/6/7/9 where we need to sort the
- * channels as well, if so, the bios_address values should
- * be the same
- */
- if ( (current_p) && (temp_p->flags & AHC_MULTI_CHANNEL) &&
- (temp_p->pci_bus == current_p->pci_bus) &&
- (PCI_SLOT(temp_p->pci_device_fn) ==
- PCI_SLOT(current_p->pci_device_fn)) )
- {
- if (temp_p->flags & AHC_CHNLB)
- {
- if ( !(temp_p->flags & AHC_CHANNEL_B_PRIMARY) )
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- }
- else
- {
- if (temp_p->flags & AHC_CHANNEL_B_PRIMARY)
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- }
- }
- if (prev_p != NULL)
- {
- prev_p->next = temp_p;
- temp_p = temp_p->next;
- prev_p->next->next = current_p;
- }
- else
- {
- pci = temp_p;
- temp_p = temp_p->next;
- pci->next = current_p;
- }
- }
-
- if (p->flags & AHC_BIOS_ENABLED)
- sort_list[1] = pci;
- else
- sort_list[3] = pci;
-
- break;
- }
- } /* End of switch(temp_p->type) */
- } /* End of while (temp_p != NULL) */
- /*
- * At this point, the cards have been broken into 4 sorted lists, now
- * we run through the lists in order and register each controller
- */
- {
- int i;
-
- left = found;
- for (i=0; i<ARRAY_SIZE(sort_list); i++)
- {
- temp_p = sort_list[i];
- while(temp_p != NULL)
- {
- template->name = board_names[temp_p->board_name_index];
- p = aic7xxx_alloc(template, temp_p);
- if (p != NULL)
- {
- p->instance = found - left;
- if (aic7xxx_register(template, p, (--left)) == 0)
- {
- found--;
- aic7xxx_release(p->host);
- scsi_unregister(p->host);
- }
- else if (aic7xxx_dump_card)
- {
- pause_sequencer(p);
- aic7xxx_print_card(p);
- aic7xxx_print_scratch_ram(p);
- unpause_sequencer(p, TRUE);
- }
- }
- current_p = temp_p;
- temp_p = (struct aic7xxx_host *)temp_p->next;
- kfree(current_p);
- }
- }
- }
- }
- return (found);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_buildscb
- *
- * Description:
- * Build a SCB.
- *-F*************************************************************************/
-static void aic7xxx_buildscb(struct aic7xxx_host *p, struct scsi_cmnd *cmd,
- struct aic7xxx_scb *scb)
-{
- unsigned short mask;
- struct aic7xxx_hwscb *hscb;
- struct aic_dev_data *aic_dev = cmd->device->hostdata;
- struct scsi_device *sdptr = cmd->device;
- unsigned char tindex = TARGET_INDEX(cmd);
- int use_sg;
-
- mask = (0x01 << tindex);
- hscb = scb->hscb;
-
- /*
- * Setup the control byte if we need negotiation and have not
- * already requested it.
- */
- hscb->control = 0;
- scb->tag_action = 0;
-
- if (p->discenable & mask)
- {
- hscb->control |= DISCENB;
- /* We always force TEST_UNIT_READY to untagged */
- if (cmd->cmnd[0] != TEST_UNIT_READY && sdptr->simple_tags)
- {
- hscb->control |= MSG_SIMPLE_Q_TAG;
- scb->tag_action = MSG_SIMPLE_Q_TAG;
- }
- }
- if ( !(aic_dev->dtr_pending) &&
- (aic_dev->needppr || aic_dev->needwdtr || aic_dev->needsdtr) &&
- (aic_dev->flags & DEVICE_DTR_SCANNED) )
- {
- aic_dev->dtr_pending = 1;
- scb->tag_action = 0;
- hscb->control &= DISCENB;
- hscb->control |= MK_MESSAGE;
- if(aic_dev->needppr)
- {
- scb->flags |= SCB_MSGOUT_PPR;
- }
- else if(aic_dev->needwdtr)
- {
- scb->flags |= SCB_MSGOUT_WDTR;
- }
- else if(aic_dev->needsdtr)
- {
- scb->flags |= SCB_MSGOUT_SDTR;
- }
- scb->flags |= SCB_DTR_SCB;
- }
- hscb->target_channel_lun = ((cmd->device->id << 4) & 0xF0) |
- ((cmd->device->channel & 0x01) << 3) | (cmd->device->lun & 0x07);
-
- /*
- * The interpretation of request_buffer and request_bufflen
- * changes depending on whether or not use_sg is zero; a
- * non-zero use_sg indicates the number of elements in the
- * scatter-gather array.
- */
-
- /*
- * XXX - this relies on the host data being stored in a
- * little-endian format.
- */
- hscb->SCSI_cmd_length = cmd->cmd_len;
- memcpy(scb->cmnd, cmd->cmnd, cmd->cmd_len);
- hscb->SCSI_cmd_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, scb->cmnd));
-
- use_sg = scsi_dma_map(cmd);
- BUG_ON(use_sg < 0);
-
- if (use_sg) {
- struct scatterlist *sg; /* Must be mid-level SCSI code scatterlist */
-
- /*
- * We must build an SG list in adapter format, as the kernel's SG list
- * cannot be used directly because of data field size (__alpha__)
- * differences and the kernel SG list uses virtual addresses where
- * we need physical addresses.
- */
- int i;
-
- scb->sg_length = 0;
-
-
- /*
- * Copy the segments into the SG array. NOTE!!! - We used to
- * have the first entry both in the data_pointer area and the first
- * SG element. That has changed somewhat. We still have the first
- * entry in both places, but now we download the address of
- * scb->sg_list[1] instead of 0 to the sg pointer in the hscb.
- */
- scsi_for_each_sg(cmd, sg, use_sg, i) {
- unsigned int len = sg_dma_len(sg);
- scb->sg_list[i].address = cpu_to_le32(sg_dma_address(sg));
- scb->sg_list[i].length = cpu_to_le32(len);
- scb->sg_length += len;
- }
- /* Copy the first SG into the data pointer area. */
- hscb->data_pointer = scb->sg_list[0].address;
- hscb->data_count = scb->sg_list[0].length;
- scb->sg_count = i;
- hscb->SG_segment_count = i;
- hscb->SG_list_pointer = cpu_to_le32(SCB_DMA_ADDR(scb, &scb->sg_list[1]));
- } else {
- scb->sg_count = 0;
- scb->sg_length = 0;
- hscb->SG_segment_count = 0;
- hscb->SG_list_pointer = 0;
- hscb->data_count = 0;
- hscb->data_pointer = 0;
- }
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_queue
- *
- * Description:
- * Queue a SCB to the controller.
- *-F*************************************************************************/
-static int aic7xxx_queue_lck(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
-{
- struct aic7xxx_host *p;
- struct aic7xxx_scb *scb;
- struct aic_dev_data *aic_dev;
-
- p = (struct aic7xxx_host *) cmd->device->host->hostdata;
-
- aic_dev = cmd->device->hostdata;
-#ifdef AIC7XXX_VERBOSE_DEBUGGING
- if (aic_dev->active_cmds > aic_dev->max_q_depth)
- {
- printk(WARN_LEAD "Commands queued exceeds queue "
- "depth, active=%d\n",
- p->host_no, CTL_OF_CMD(cmd),
- aic_dev->active_cmds);
- }
-#endif
-
- scb = scbq_remove_head(&p->scb_data->free_scbs);
- if (scb == NULL)
- {
- aic7xxx_allocate_scb(p);
- scb = scbq_remove_head(&p->scb_data->free_scbs);
- if(scb == NULL)
- {
- printk(WARN_LEAD "Couldn't get a free SCB.\n", p->host_no,
- CTL_OF_CMD(cmd));
- return 1;
- }
- }
- scb->cmd = cmd;
-
- /*
- * Make sure the scsi_cmnd pointer is saved, the struct it points to
- * is set up properly, and the parity error flag is reset, then send
- * the SCB to the sequencer and watch the fun begin.
- */
- aic7xxx_position(cmd) = scb->hscb->tag;
- cmd->scsi_done = fn;
- cmd->result = DID_OK;
- aic7xxx_error(cmd) = DID_OK;
- aic7xxx_status(cmd) = 0;
- cmd->host_scribble = NULL;
-
- /*
- * Construct the SCB beforehand, so the sequencer is
- * paused a minimal amount of time.
- */
- aic7xxx_buildscb(p, cmd, scb);
-
- scb->flags |= SCB_ACTIVE | SCB_WAITINGQ;
-
- scbq_insert_tail(&p->waiting_scbs, scb);
- aic7xxx_run_waiting_queues(p);
- return (0);
-}
-
-static DEF_SCSI_QCMD(aic7xxx_queue)
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_bus_device_reset
- *
- * Description:
- * Abort or reset the current SCSI command(s). If the scb has not
- * previously been aborted, then we attempt to send a BUS_DEVICE_RESET
- * message to the target. If the scb has previously been unsuccessfully
- * aborted, then we will reset the channel and have all devices renegotiate.
- * Returns an enumerated type that indicates the status of the operation.
- *-F*************************************************************************/
-static int __aic7xxx_bus_device_reset(struct scsi_cmnd *cmd)
-{
- struct aic7xxx_host *p;
- struct aic7xxx_scb *scb;
- struct aic7xxx_hwscb *hscb;
- int channel;
- unsigned char saved_scbptr, lastphase;
- unsigned char hscb_index;
- int disconnected;
- struct aic_dev_data *aic_dev;
-
- if(cmd == NULL)
- {
- printk(KERN_ERR "aic7xxx_bus_device_reset: called with NULL cmd!\n");
- return FAILED;
- }
- p = (struct aic7xxx_host *)cmd->device->host->hostdata;
- aic_dev = AIC_DEV(cmd);
- if(aic7xxx_position(cmd) < p->scb_data->numscbs)
- scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]);
- else
- return FAILED;
-
- hscb = scb->hscb;
-
- aic7xxx_isr(p);
- aic7xxx_done_cmds_complete(p);
- /* If the command was already complete or just completed, then we didn't
- * do a reset, return FAILED */
- if(!(scb->flags & SCB_ACTIVE))
- return FAILED;
-
- pause_sequencer(p);
- lastphase = aic_inb(p, LASTPHASE);
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- {
- printk(INFO_LEAD "Bus Device reset, scb flags 0x%x, ",
- p->host_no, CTL_OF_SCB(scb), scb->flags);
- switch (lastphase)
- {
- case P_DATAOUT:
- printk("Data-Out phase\n");
- break;
- case P_DATAIN:
- printk("Data-In phase\n");
- break;
- case P_COMMAND:
- printk("Command phase\n");
- break;
- case P_MESGOUT:
- printk("Message-Out phase\n");
- break;
- case P_STATUS:
- printk("Status phase\n");
- break;
- case P_MESGIN:
- printk("Message-In phase\n");
- break;
- default:
- /*
- * We're not in a valid phase, so assume we're idle.
- */
- printk("while idle, LASTPHASE = 0x%x\n", lastphase);
- break;
- }
- printk(INFO_LEAD "SCSISIGI 0x%x, SEQADDR 0x%x, SSTAT0 0x%x, SSTAT1 "
- "0x%x\n", p->host_no, CTL_OF_SCB(scb),
- aic_inb(p, SCSISIGI),
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, SSTAT0), aic_inb(p, SSTAT1));
- printk(INFO_LEAD "SG_CACHEPTR 0x%x, SSTAT2 0x%x, STCNT 0x%x\n", p->host_no,
- CTL_OF_SCB(scb),
- (p->features & AHC_ULTRA2) ? aic_inb(p, SG_CACHEPTR) : 0,
- aic_inb(p, SSTAT2),
- aic_inb(p, STCNT + 2) << 16 | aic_inb(p, STCNT + 1) << 8 |
- aic_inb(p, STCNT));
- }
-
- channel = cmd->device->channel;
-
- /*
- * Send a Device Reset Message:
- * The target that is holding up the bus may not be the same as
- * the one that triggered this timeout (different commands have
- * different timeout lengths). Our strategy here is to queue an
- * abort message to the timed out target if it is disconnected.
- * Otherwise, if we have an active target we stuff the message buffer
- * with an abort message and assert ATN in the hopes that the target
- * will let go of the bus and go to the mesgout phase. If this
- * fails, we'll get another timeout a few seconds later which will
- * attempt a bus reset.
- */
- saved_scbptr = aic_inb(p, SCBPTR);
- disconnected = FALSE;
-
- if (lastphase != P_BUSFREE)
- {
- if (aic_inb(p, SCB_TAG) >= p->scb_data->numscbs)
- {
- printk(WARN_LEAD "Invalid SCB ID %d is active, "
- "SCB flags = 0x%x.\n", p->host_no,
- CTL_OF_CMD(cmd), scb->hscb->tag, scb->flags);
- unpause_sequencer(p, FALSE);
- return FAILED;
- }
- if (scb->hscb->tag == aic_inb(p, SCB_TAG))
- {
- if ( (lastphase == P_MESGOUT) || (lastphase == P_MESGIN) )
- {
- printk(WARN_LEAD "Device reset, Message buffer "
- "in use\n", p->host_no, CTL_OF_SCB(scb));
- unpause_sequencer(p, FALSE);
- return FAILED;
- }
-
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Device reset message in "
- "message buffer\n", p->host_no, CTL_OF_SCB(scb));
- scb->flags |= SCB_RESET | SCB_DEVICE_RESET;
- aic7xxx_error(cmd) = DID_RESET;
- aic_dev->flags |= BUS_DEVICE_RESET_PENDING;
- /* Send the abort message to the active SCB. */
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, lastphase | ATNO, SCSISIGO);
- unpause_sequencer(p, FALSE);
- spin_unlock_irq(p->host->host_lock);
- ssleep(1);
- spin_lock_irq(p->host->host_lock);
- if(aic_dev->flags & BUS_DEVICE_RESET_PENDING)
- return FAILED;
- else
- return SUCCESS;
- }
- } /* if (last_phase != P_BUSFREE).....indicates we are idle and can work */
- /*
- * Simply set the MK_MESSAGE flag and the SEQINT handler will do
- * the rest on a reconnect/connect.
- */
- scb->hscb->control |= MK_MESSAGE;
- scb->flags |= SCB_RESET | SCB_DEVICE_RESET;
- aic_dev->flags |= BUS_DEVICE_RESET_PENDING;
- /*
- * Check to see if the command is on the qinfifo. If it is, then we will
- * not need to queue the command again since the card should start it soon
- */
- if (aic7xxx_search_qinfifo(p, cmd->device->channel, cmd->device->id, cmd->device->lun, hscb->tag,
- 0, TRUE, NULL) == 0)
- {
- disconnected = TRUE;
- if ((hscb_index = aic7xxx_find_scb(p, scb)) != SCB_LIST_NULL)
- {
- unsigned char scb_control;
-
- aic_outb(p, hscb_index, SCBPTR);
- scb_control = aic_inb(p, SCB_CONTROL);
- /*
- * If the DISCONNECTED bit is not set in SCB_CONTROL, then we are
- * actually on the waiting list, not disconnected, and we don't
- * need to requeue the command.
- */
- disconnected = (scb_control & DISCONNECTED);
- aic_outb(p, scb_control | MK_MESSAGE, SCB_CONTROL);
- }
- if (disconnected)
- {
- /*
- * Actually requeue this SCB in case we can select the
- * device before it reconnects. This can result in the command
- * being on the qinfifo twice, but we don't care because it will
- * all get cleaned up if/when the reset takes place.
- */
- if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
- printk(INFO_LEAD "Queueing device reset command.\n", p->host_no,
- CTL_OF_SCB(scb));
- p->qinfifo[p->qinfifonext++] = scb->hscb->tag;
- if (p->features & AHC_QUEUE_REGS)
- aic_outb(p, p->qinfifonext, HNSCB_QOFF);
- else
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
- scb->flags |= SCB_QUEUED_ABORT;
- }
- }
- aic_outb(p, saved_scbptr, SCBPTR);
- unpause_sequencer(p, FALSE);
- spin_unlock_irq(p->host->host_lock);
- msleep(1000/4);
- spin_lock_irq(p->host->host_lock);
- if(aic_dev->flags & BUS_DEVICE_RESET_PENDING)
- return FAILED;
- else
- return SUCCESS;
-}
-
-static int aic7xxx_bus_device_reset(struct scsi_cmnd *cmd)
-{
- int rc;
-
- spin_lock_irq(cmd->device->host->host_lock);
- rc = __aic7xxx_bus_device_reset(cmd);
- spin_unlock_irq(cmd->device->host->host_lock);
-
- return rc;
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_panic_abort
- *
- * Description:
- * Abort the current SCSI command(s).
- *-F*************************************************************************/
-static void aic7xxx_panic_abort(struct aic7xxx_host *p, struct scsi_cmnd *cmd)
-{
-
- printk("aic7xxx driver version %s\n", AIC7XXX_C_VERSION);
- printk("Controller type:\n %s\n", board_names[p->board_name_index]);
- printk("p->flags=0x%lx, p->chip=0x%x, p->features=0x%x, "
- "sequencer %s paused\n",
- p->flags, p->chip, p->features,
- (aic_inb(p, HCNTRL) & PAUSE) ? "is" : "isn't" );
- pause_sequencer(p);
- disable_irq(p->irq);
- aic7xxx_print_card(p);
- aic7xxx_print_scratch_ram(p);
- spin_unlock_irq(p->host->host_lock);
- for(;;) barrier();
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_abort
- *
- * Description:
- * Abort the current SCSI command(s).
- *-F*************************************************************************/
-static int __aic7xxx_abort(struct scsi_cmnd *cmd)
-{
- struct aic7xxx_scb *scb = NULL;
- struct aic7xxx_host *p;
- int found=0, disconnected;
- unsigned char saved_hscbptr, hscbptr, scb_control;
- struct aic_dev_data *aic_dev;
-
- if(cmd == NULL)
- {
- printk(KERN_ERR "aic7xxx_abort: called with NULL cmd!\n");
- return FAILED;
- }
- p = (struct aic7xxx_host *)cmd->device->host->hostdata;
- aic_dev = AIC_DEV(cmd);
- if(aic7xxx_position(cmd) < p->scb_data->numscbs)
- scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]);
- else
- return FAILED;
-
- aic7xxx_isr(p);
- aic7xxx_done_cmds_complete(p);
- /* If the command was already complete or just completed, then we didn't
- * do a reset, return FAILED */
- if(!(scb->flags & SCB_ACTIVE))
- return FAILED;
-
- pause_sequencer(p);
-
- /*
- * I added a new config option to the driver: "panic_on_abort" that will
- * cause the driver to panic and the machine to stop on the first abort
- * or reset call into the driver. At that point, it prints out a lot of
- * useful information for me which I can then use to try and debug the
- * problem. Simply enable the boot time prompt in order to activate this
- * code.
- */
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, cmd);
-
- if (aic7xxx_verbose & VERBOSE_ABORT)
- {
- printk(INFO_LEAD "Aborting scb %d, flags 0x%x, SEQADDR 0x%x, LASTPHASE "
- "0x%x\n",
- p->host_no, CTL_OF_SCB(scb), scb->hscb->tag, scb->flags,
- aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
- aic_inb(p, LASTPHASE));
- printk(INFO_LEAD "SG_CACHEPTR 0x%x, SG_COUNT %d, SCSISIGI 0x%x\n",
- p->host_no, CTL_OF_SCB(scb), (p->features & AHC_ULTRA2) ?
- aic_inb(p, SG_CACHEPTR) : 0, aic_inb(p, SG_COUNT),
- aic_inb(p, SCSISIGI));
- printk(INFO_LEAD "SSTAT0 0x%x, SSTAT1 0x%x, SSTAT2 0x%x\n",
- p->host_no, CTL_OF_SCB(scb), aic_inb(p, SSTAT0),
- aic_inb(p, SSTAT1), aic_inb(p, SSTAT2));
- }
-
- if (scb->flags & SCB_WAITINGQ)
- {
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "SCB found on waiting list and "
- "aborted.\n", p->host_no, CTL_OF_SCB(scb));
- scbq_remove(&p->waiting_scbs, scb);
- scbq_remove(&aic_dev->delayed_scbs, scb);
- aic_dev->active_cmds++;
- p->activescbs++;
- scb->flags &= ~(SCB_WAITINGQ | SCB_ACTIVE);
- scb->flags |= SCB_ABORT | SCB_QUEUED_FOR_DONE;
- goto success;
- }
-
-/*
- * We just checked the waiting_q, now for the QINFIFO
- */
- if ( ((found = aic7xxx_search_qinfifo(p, cmd->device->id, cmd->device->channel,
- cmd->device->lun, scb->hscb->tag, SCB_ABORT | SCB_QUEUED_FOR_DONE,
- FALSE, NULL)) != 0) &&
- (aic7xxx_verbose & VERBOSE_ABORT_PROCESS))
- {
- printk(INFO_LEAD "SCB found in QINFIFO and aborted.\n", p->host_no,
- CTL_OF_SCB(scb));
- goto success;
- }
-
-/*
- * QINFIFO, waitingq, completeq done. Next, check WAITING_SCB list in card
- */
-
- saved_hscbptr = aic_inb(p, SCBPTR);
- if ((hscbptr = aic7xxx_find_scb(p, scb)) != SCB_LIST_NULL)
- {
- aic_outb(p, hscbptr, SCBPTR);
- scb_control = aic_inb(p, SCB_CONTROL);
- disconnected = scb_control & DISCONNECTED;
- /*
- * If the DISCONNECTED bit is not set in SCB_CONTROL, then we are
- * either currently active or on the waiting list.
- */
- if(!disconnected && aic_inb(p, LASTPHASE) == P_BUSFREE) {
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "SCB found on hardware waiting"
- " list and aborted.\n", p->host_no, CTL_OF_SCB(scb));
- /* If we are the only waiting command, stop the selection engine */
- if (aic_inb(p, WAITING_SCBH) == hscbptr && aic_inb(p, SCB_NEXT) ==
- SCB_LIST_NULL)
- {
- aic_outb(p, aic_inb(p, SCSISEQ) & ~ENSELO, SCSISEQ);
- aic_outb(p, CLRSELTIMEO, CLRSINT1);
- aic_outb(p, SCB_LIST_NULL, WAITING_SCBH);
- }
- else
- {
- unsigned char prev, next;
- prev = SCB_LIST_NULL;
- next = aic_inb(p, WAITING_SCBH);
- while(next != SCB_LIST_NULL)
- {
- aic_outb(p, next, SCBPTR);
- if (next == hscbptr)
- {
- next = aic_inb(p, SCB_NEXT);
- if (prev != SCB_LIST_NULL)
- {
- aic_outb(p, prev, SCBPTR);
- aic_outb(p, next, SCB_NEXT);
- }
- else
- aic_outb(p, next, WAITING_SCBH);
- aic_outb(p, hscbptr, SCBPTR);
- next = SCB_LIST_NULL;
- }
- else
- {
- prev = next;
- next = aic_inb(p, SCB_NEXT);
- }
- }
- }
- aic_outb(p, SCB_LIST_NULL, SCB_TAG);
- aic_outb(p, 0, SCB_CONTROL);
- aic7xxx_add_curscb_to_free_list(p);
- scb->flags = SCB_ABORT | SCB_QUEUED_FOR_DONE;
- goto success;
- }
- else if (!disconnected)
- {
- /*
- * We are the currently active command
- */
- if((aic_inb(p, LASTPHASE) == P_MESGIN) ||
- (aic_inb(p, LASTPHASE) == P_MESGOUT))
- {
- /*
- * Message buffer busy, unable to abort
- */
- printk(INFO_LEAD "message buffer busy, unable to abort.\n",
- p->host_no, CTL_OF_SCB(scb));
- unpause_sequencer(p, FALSE);
- return FAILED;
- }
- /* Fallthrough to below, set ATNO after we set SCB_CONTROL */
- }
- aic_outb(p, scb_control | MK_MESSAGE, SCB_CONTROL);
- if(!disconnected)
- {
- aic_outb(p, HOST_MSG, MSG_OUT);
- aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
- }
- aic_outb(p, saved_hscbptr, SCBPTR);
- }
- else
- {
- /*
- * The scb isn't in the card at all and it is active and it isn't in
- * any of the queues, so it must be disconnected and paged out. Fall
- * through to the code below.
- */
- disconnected = 1;
- }
-
- p->flags |= AHC_ABORT_PENDING;
- scb->flags |= SCB_QUEUED_ABORT | SCB_ABORT | SCB_RECOVERY_SCB;
- scb->hscb->control |= MK_MESSAGE;
- if(disconnected)
- {
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "SCB disconnected. Queueing Abort"
- " SCB.\n", p->host_no, CTL_OF_SCB(scb));
- p->qinfifo[p->qinfifonext++] = scb->hscb->tag;
- if (p->features & AHC_QUEUE_REGS)
- aic_outb(p, p->qinfifonext, HNSCB_QOFF);
- else
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
- }
- unpause_sequencer(p, FALSE);
- spin_unlock_irq(p->host->host_lock);
- msleep(1000/4);
- spin_lock_irq(p->host->host_lock);
- if (p->flags & AHC_ABORT_PENDING)
- {
- if (aic7xxx_verbose & VERBOSE_ABORT_RETURN)
- printk(INFO_LEAD "Abort never delivered, returning FAILED\n", p->host_no,
- CTL_OF_CMD(cmd));
- p->flags &= ~AHC_ABORT_PENDING;
- return FAILED;
- }
- if (aic7xxx_verbose & VERBOSE_ABORT_RETURN)
- printk(INFO_LEAD "Abort successful.\n", p->host_no, CTL_OF_CMD(cmd));
- return SUCCESS;
-
-success:
- if (aic7xxx_verbose & VERBOSE_ABORT_RETURN)
- printk(INFO_LEAD "Abort successful.\n", p->host_no, CTL_OF_CMD(cmd));
- aic7xxx_run_done_queue(p, TRUE);
- unpause_sequencer(p, FALSE);
- return SUCCESS;
-}
-
-static int aic7xxx_abort(struct scsi_cmnd *cmd)
-{
- int rc;
-
- spin_lock_irq(cmd->device->host->host_lock);
- rc = __aic7xxx_abort(cmd);
- spin_unlock_irq(cmd->device->host->host_lock);
-
- return rc;
-}
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_reset
- *
- * Description:
- * Resetting the bus always succeeds - is has to, otherwise the
- * kernel will panic! Try a surgical technique - sending a BUS
- * DEVICE RESET message - on the offending target before pulling
- * the SCSI bus reset line.
- *-F*************************************************************************/
-static int aic7xxx_reset(struct scsi_cmnd *cmd)
-{
- struct aic7xxx_scb *scb;
- struct aic7xxx_host *p;
- struct aic_dev_data *aic_dev;
-
- p = (struct aic7xxx_host *) cmd->device->host->hostdata;
- spin_lock_irq(p->host->host_lock);
-
- aic_dev = AIC_DEV(cmd);
- if(aic7xxx_position(cmd) < p->scb_data->numscbs)
- {
- scb = (p->scb_data->scb_array[aic7xxx_position(cmd)]);
- if (scb->cmd != cmd)
- scb = NULL;
- }
- else
- {
- scb = NULL;
- }
-
- /*
- * I added a new config option to the driver: "panic_on_abort" that will
- * cause the driver to panic and the machine to stop on the first abort
- * or reset call into the driver. At that point, it prints out a lot of
- * useful information for me which I can then use to try and debug the
- * problem. Simply enable the boot time prompt in order to activate this
- * code.
- */
- if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p, cmd);
-
- pause_sequencer(p);
-
- while((aic_inb(p, INTSTAT) & INT_PEND) && !(p->flags & AHC_IN_ISR))
- {
- aic7xxx_isr(p);
- pause_sequencer(p);
- }
- aic7xxx_done_cmds_complete(p);
-
- if(scb && (scb->cmd == NULL))
- {
- /*
- * We just completed the command when we ran the isr stuff, so we no
- * longer have it.
- */
- unpause_sequencer(p, FALSE);
- spin_unlock_irq(p->host->host_lock);
- return SUCCESS;
- }
-
-/*
- * By this point, we want to already know what we are going to do and
- * only have the following code implement our course of action.
- */
- aic7xxx_reset_channel(p, cmd->device->channel, TRUE);
- if (p->features & AHC_TWIN)
- {
- aic7xxx_reset_channel(p, cmd->device->channel ^ 0x01, TRUE);
- restart_sequencer(p);
- }
- aic_outb(p, aic_inb(p, SIMODE1) & ~(ENREQINIT|ENBUSFREE), SIMODE1);
- aic7xxx_clear_intstat(p);
- p->flags &= ~AHC_HANDLING_REQINITS;
- p->msg_type = MSG_TYPE_NONE;
- p->msg_index = 0;
- p->msg_len = 0;
- aic7xxx_run_done_queue(p, TRUE);
- unpause_sequencer(p, FALSE);
- spin_unlock_irq(p->host->host_lock);
- ssleep(2);
- return SUCCESS;
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_biosparam
- *
- * Description:
- * Return the disk geometry for the given SCSI device.
- *
- * Note:
- * This function is broken for today's really large drives and needs
- * fixed.
- *-F*************************************************************************/
-static int
-aic7xxx_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int geom[])
-{
- sector_t heads, sectors, cylinders;
- int ret;
- struct aic7xxx_host *p;
- unsigned char *buf;
-
- p = (struct aic7xxx_host *) sdev->host->hostdata;
- buf = scsi_bios_ptable(bdev);
-
- if ( buf )
- {
- ret = scsi_partsize(buf, capacity, &geom[2], &geom[0], &geom[1]);
- kfree(buf);
- if ( ret != -1 )
- return(ret);
- }
-
- heads = 64;
- sectors = 32;
- cylinders = capacity >> 11;
-
- if ((p->flags & AHC_EXTEND_TRANS_A) && (cylinders > 1024))
- {
- heads = 255;
- sectors = 63;
- cylinders = capacity >> 14;
- if(capacity > (65535 * heads * sectors))
- cylinders = 65535;
- else
- cylinders = ((unsigned int)capacity) / (unsigned int)(heads * sectors);
- }
-
- geom[0] = (int)heads;
- geom[1] = (int)sectors;
- geom[2] = (int)cylinders;
-
- return (0);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_release
- *
- * Description:
- * Free the passed in Scsi_Host memory structures prior to unloading the
- * module.
- *-F*************************************************************************/
-static int
-aic7xxx_release(struct Scsi_Host *host)
-{
- struct aic7xxx_host *p = (struct aic7xxx_host *) host->hostdata;
- struct aic7xxx_host *next, *prev;
-
- if(p->irq)
- free_irq(p->irq, p);
-#ifdef MMAPIO
- if(p->maddr)
- {
- iounmap(p->maddr);
- }
-#endif /* MMAPIO */
- if(!p->pdev)
- release_region(p->base, MAXREG - MINREG);
-#ifdef CONFIG_PCI
- else {
- pci_release_regions(p->pdev);
- pci_dev_put(p->pdev);
- }
-#endif
- prev = NULL;
- next = first_aic7xxx;
- while(next != NULL)
- {
- if(next == p)
- {
- if(prev == NULL)
- first_aic7xxx = next->next;
- else
- prev->next = next->next;
- }
- else
- {
- prev = next;
- }
- next = next->next;
- }
- aic7xxx_free(p);
- return(0);
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_print_card
- *
- * Description:
- * Print out all of the control registers on the card
- *
- * NOTE: This function is not yet safe for use on the VLB and EISA
- * controllers, so it isn't used on those controllers at all.
- *-F*************************************************************************/
-static void
-aic7xxx_print_card(struct aic7xxx_host *p)
-{
- int i, j, k, chip;
- static struct register_ranges {
- int num_ranges;
- int range_val[32];
- } cards_ds[] = {
- { 0, {0,} }, /* none */
- {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1f, 0x1f, 0x60, 0x60, /*7771*/
- 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9b, 0x9f} },
- { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7850*/
- 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
- { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7860*/
- 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
- {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1c, 0x1f, 0x60, 0x60, /*7870*/
- 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
- {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1a, 0x1c, 0x1f, 0x60, 0x60, /*7880*/
- 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
- {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7890*/
- 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f,
- 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc,
- 0xfe, 0xff} },
- {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1b, 0x1f, 0x60, 0x60, /*7895*/
- 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a,
- 0x9f, 0x9f, 0xe0, 0xf1} },
- {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7896*/
- 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f,
- 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc,
- 0xfe, 0xff} },
- {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7892*/
- 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9c, 0x9f,
- 0xe0, 0xf1, 0xf4, 0xfc} },
- {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7899*/
- 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9c, 0x9f,
- 0xe0, 0xf1, 0xf4, 0xfc} },
- };
- chip = p->chip & AHC_CHIPID_MASK;
- printk("%s at ",
- board_names[p->board_name_index]);
- switch(p->chip & ~AHC_CHIPID_MASK)
- {
- case AHC_VL:
- printk("VLB Slot %d.\n", p->pci_device_fn);
- break;
- case AHC_EISA:
- printk("EISA Slot %d.\n", p->pci_device_fn);
- break;
- case AHC_PCI:
- default:
- printk("PCI %d/%d/%d.\n", p->pci_bus, PCI_SLOT(p->pci_device_fn),
- PCI_FUNC(p->pci_device_fn));
- break;
- }
-
- /*
- * the registers on the card....
- */
- printk("Card Dump:\n");
- k = 0;
- for(i=0; i<cards_ds[chip].num_ranges; i++)
- {
- for(j = cards_ds[chip].range_val[ i * 2 ];
- j <= cards_ds[chip].range_val[ i * 2 + 1 ] ;
- j++)
- {
- printk("%02x:%02x ", j, aic_inb(p, j));
- if(++k == 13)
- {
- printk("\n");
- k=0;
- }
- }
- }
- if(k != 0)
- printk("\n");
-
- /*
- * If this was an Ultra2 controller, then we just hosed the card in terms
- * of the QUEUE REGS. This function is only called at init time or by
- * the panic_abort function, so it's safe to assume a generic init time
- * setting here
- */
-
- if(p->features & AHC_QUEUE_REGS)
- {
- aic_outb(p, 0, SDSCB_QOFF);
- aic_outb(p, 0, SNSCB_QOFF);
- aic_outb(p, 0, HNSCB_QOFF);
- }
-
-}
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_print_scratch_ram
- *
- * Description:
- * Print out the scratch RAM values on the card.
- *-F*************************************************************************/
-static void
-aic7xxx_print_scratch_ram(struct aic7xxx_host *p)
-{
- int i, k;
-
- k = 0;
- printk("Scratch RAM:\n");
- for(i = SRAM_BASE; i < SEQCTL; i++)
- {
- printk("%02x:%02x ", i, aic_inb(p, i));
- if(++k == 13)
- {
- printk("\n");
- k=0;
- }
- }
- if (p->features & AHC_MORE_SRAM)
- {
- for(i = TARG_OFFSET; i < 0x80; i++)
- {
- printk("%02x:%02x ", i, aic_inb(p, i));
- if(++k == 13)
- {
- printk("\n");
- k=0;
- }
- }
- }
- printk("\n");
-}
-
-
-#include "aic7xxx_old/aic7xxx_proc.c"
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_VERSION(AIC7XXX_H_VERSION);
-
-
-static struct scsi_host_template driver_template = {
- .show_info = aic7xxx_show_info,
- .detect = aic7xxx_detect,
- .release = aic7xxx_release,
- .info = aic7xxx_info,
- .queuecommand = aic7xxx_queue,
- .slave_alloc = aic7xxx_slave_alloc,
- .slave_configure = aic7xxx_slave_configure,
- .slave_destroy = aic7xxx_slave_destroy,
- .bios_param = aic7xxx_biosparam,
- .eh_abort_handler = aic7xxx_abort,
- .eh_device_reset_handler = aic7xxx_bus_device_reset,
- .eh_host_reset_handler = aic7xxx_reset,
- .can_queue = 255,
- .this_id = -1,
- .max_sectors = 2048,
- .cmd_per_lun = 3,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-#include "scsi_module.c"
-
-/*
- * Overrides for Emacs so that we almost follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 2
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -2
- * c-argdecl-indent: 2
- * c-label-offset: -2
- * c-continued-statement-offset: 2
- * c-continued-brace-offset: 0
- * indent-tabs-mode: nil
- * tab-width: 8
- * End:
- */
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.h b/drivers/scsi/aic7xxx_old/aic7xxx.h
deleted file mode 100644
index 0116c8128a6b..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*+M*************************************************************************
- * Adaptec AIC7xxx device driver for Linux.
- *
- * Copyright (c) 1994 John Aycock
- * The University of Calgary Department of Computer Science.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id: aic7xxx.h,v 3.2 1996/07/23 03:37:26 deang Exp $
- *-M*************************************************************************/
-#ifndef _aic7xxx_h
-#define _aic7xxx_h
-
-#define AIC7XXX_H_VERSION "5.2.0"
-
-#endif /* _aic7xxx_h */
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.reg b/drivers/scsi/aic7xxx_old/aic7xxx.reg
deleted file mode 100644
index f67b4bced01c..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx.reg
+++ /dev/null
@@ -1,1401 +0,0 @@
-/*
- * Aic7xxx register and scratch ram definitions.
- *
- * Copyright (c) 1994-1998 Justin Gibbs.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU General Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: aic7xxx.reg,v 1.4 1997/06/27 19:38:39 gibbs Exp $
- */
-
-/*
- * This file is processed by the aic7xxx_asm utility for use in assembling
- * firmware for the aic7xxx family of SCSI host adapters as well as to generate
- * a C header file for use in the kernel portion of the Aic7xxx driver.
- *
- * All page numbers refer to the Adaptec AIC-7770 Data Book available from
- * Adaptec's Technical Documents Department 1-800-934-2766
- */
-
-/*
- * SCSI Sequence Control (p. 3-11).
- * Each bit, when set starts a specific SCSI sequence on the bus
- */
-register SCSISEQ {
- address 0x000
- access_mode RW
- bit TEMODE 0x80
- bit ENSELO 0x40
- bit ENSELI 0x20
- bit ENRSELI 0x10
- bit ENAUTOATNO 0x08
- bit ENAUTOATNI 0x04
- bit ENAUTOATNP 0x02
- bit SCSIRSTO 0x01
-}
-
-/*
- * SCSI Transfer Control 0 Register (pp. 3-13).
- * Controls the SCSI module data path.
- */
-register SXFRCTL0 {
- address 0x001
- access_mode RW
- bit DFON 0x80
- bit DFPEXP 0x40
- bit FAST20 0x20
- bit CLRSTCNT 0x10
- bit SPIOEN 0x08
- bit SCAMEN 0x04
- bit CLRCHN 0x02
-}
-
-/*
- * SCSI Transfer Control 1 Register (pp. 3-14,15).
- * Controls the SCSI module data path.
- */
-register SXFRCTL1 {
- address 0x002
- access_mode RW
- bit BITBUCKET 0x80
- bit SWRAPEN 0x40
- bit ENSPCHK 0x20
- mask STIMESEL 0x18
- bit ENSTIMER 0x04
- bit ACTNEGEN 0x02
- bit STPWEN 0x01 /* Powered Termination */
-}
-
-/*
- * SCSI Control Signal Read Register (p. 3-15).
- * Reads the actual state of the SCSI bus pins
- */
-register SCSISIGI {
- address 0x003
- access_mode RO
- bit CDI 0x80
- bit IOI 0x40
- bit MSGI 0x20
- bit ATNI 0x10
- bit SELI 0x08
- bit BSYI 0x04
- bit REQI 0x02
- bit ACKI 0x01
-/*
- * Possible phases in SCSISIGI
- */
- mask PHASE_MASK CDI|IOI|MSGI
- mask P_DATAOUT 0x00
- mask P_DATAIN IOI
- mask P_COMMAND CDI
- mask P_MESGOUT CDI|MSGI
- mask P_STATUS CDI|IOI
- mask P_MESGIN CDI|IOI|MSGI
-}
-
-/*
- * SCSI Control Signal Write Register (p. 3-16).
- * Writing to this register modifies the control signals on the bus. Only
- * those signals that are allowed in the current mode (Initiator/Target) are
- * asserted.
- */
-register SCSISIGO {
- address 0x003
- access_mode WO
- bit CDO 0x80
- bit IOO 0x40
- bit MSGO 0x20
- bit ATNO 0x10
- bit SELO 0x08
- bit BSYO 0x04
- bit REQO 0x02
- bit ACKO 0x01
-/*
- * Possible phases to write into SCSISIG0
- */
- mask PHASE_MASK CDI|IOI|MSGI
- mask P_DATAOUT 0x00
- mask P_DATAIN IOI
- mask P_COMMAND CDI
- mask P_MESGOUT CDI|MSGI
- mask P_STATUS CDI|IOI
- mask P_MESGIN CDI|IOI|MSGI
-}
-
-/*
- * SCSI Rate Control (p. 3-17).
- * Contents of this register determine the Synchronous SCSI data transfer
- * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the
- * SOFS (3:0) bits disables synchronous data transfers. Any offset value
- * greater than 0 enables synchronous transfers.
- */
-register SCSIRATE {
- address 0x004
- access_mode RW
- bit WIDEXFER 0x80 /* Wide transfer control */
- mask SXFR 0x70 /* Sync transfer rate */
- mask SXFR_ULTRA2 0x7f /* Sync transfer rate */
- mask SOFS 0x0f /* Sync offset */
-}
-
-/*
- * SCSI ID (p. 3-18).
- * Contains the ID of the board and the current target on the
- * selected channel.
- */
-register SCSIID {
- address 0x005
- access_mode RW
- mask TID 0xf0 /* Target ID mask */
- mask OID 0x0f /* Our ID mask */
- /*
- * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book)
- * The aic7890/91 allow an offset of up to 127 transfers in both wide
- * and narrow mode.
- */
- alias SCSIOFFSET
- mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */
-}
-
-/*
- * SCSI Latched Data (p. 3-19).
- * Read/Write latches used to transfer data on the SCSI bus during
- * Automatic or Manual PIO mode. SCSIDATH can be used for the
- * upper byte of a 16bit wide asynchronouse data phase transfer.
- */
-register SCSIDATL {
- address 0x006
- access_mode RW
-}
-
-register SCSIDATH {
- address 0x007
- access_mode RW
-}
-
-/*
- * SCSI Transfer Count (pp. 3-19,20)
- * These registers count down the number of bytes transferred
- * across the SCSI bus. The counter is decremented only once
- * the data has been safely transferred. SDONE in SSTAT0 is
- * set when STCNT goes to 0
- */
-register STCNT {
- address 0x008
- size 3
- access_mode RW
-}
-
-/*
- * Option Mode Register (Alternate Mode) (p. 5-198)
- * This register is used to set certain options on Ultra3 based chips.
- * The chip must be in alternate mode (bit ALT_MODE in SFUNCT must be set)
- */
-register OPTIONMODE {
- address 0x008
- access_mode RW
- bit AUTORATEEN 0x80
- bit AUTOACKEN 0x40
- bit ATNMGMNTEN 0x20
- bit BUSFREEREV 0x10
- bit EXPPHASEDIS 0x08
- bit SCSIDATL_IMGEN 0x04
- bit AUTO_MSGOUT_DE 0x02
- bit DIS_MSGIN_DUALEDGE 0x01
-}
-
-
-/*
- * Clear SCSI Interrupt 0 (p. 3-20)
- * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0.
- */
-register CLRSINT0 {
- address 0x00b
- access_mode WO
- bit CLRSELDO 0x40
- bit CLRSELDI 0x20
- bit CLRSELINGO 0x10
- bit CLRSWRAP 0x08
- bit CLRSPIORDY 0x02
-}
-
-/*
- * SCSI Status 0 (p. 3-21)
- * Contains one set of SCSI Interrupt codes
- * These are most likely of interest to the sequencer
- */
-register SSTAT0 {
- address 0x00b
- access_mode RO
- bit TARGET 0x80 /* Board acting as target */
- bit SELDO 0x40 /* Selection Done */
- bit SELDI 0x20 /* Board has been selected */
- bit SELINGO 0x10 /* Selection In Progress */
- bit SWRAP 0x08 /* 24bit counter wrap */
- bit IOERR 0x08 /* LVD Tranceiver mode changed */
- bit SDONE 0x04 /* STCNT = 0x000000 */
- bit SPIORDY 0x02 /* SCSI PIO Ready */
- bit DMADONE 0x01 /* DMA transfer completed */
-}
-
-/*
- * Clear SCSI Interrupt 1 (p. 3-23)
- * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1.
- */
-register CLRSINT1 {
- address 0x00c
- access_mode WO
- bit CLRSELTIMEO 0x80
- bit CLRATNO 0x40
- bit CLRSCSIRSTI 0x20
- bit CLRBUSFREE 0x08
- bit CLRSCSIPERR 0x04
- bit CLRPHASECHG 0x02
- bit CLRREQINIT 0x01
-}
-
-/*
- * SCSI Status 1 (p. 3-24)
- */
-register SSTAT1 {
- address 0x00c
- access_mode RO
- bit SELTO 0x80
- bit ATNTARG 0x40
- bit SCSIRSTI 0x20
- bit PHASEMIS 0x10
- bit BUSFREE 0x08
- bit SCSIPERR 0x04
- bit PHASECHG 0x02
- bit REQINIT 0x01
-}
-
-/*
- * SCSI Status 2 (pp. 3-25,26)
- */
-register SSTAT2 {
- address 0x00d
- access_mode RO
- bit OVERRUN 0x80
- bit SHVALID 0x40
- bit WIDE_RES 0x20
- bit EXP_ACTIVE 0x10 /* SCSI Expander Active */
- bit CRCVALERR 0x08 /* CRC Value Error */
- bit CRCENDERR 0x04 /* CRC End Error */
- bit CRCREQERR 0x02 /* CRC REQ Error */
- bit DUAL_EDGE_ERROR 0x01 /* Invalid pins for Dual Edge phase */
- mask SFCNT 0x1f
-}
-
-/*
- * SCSI Status 3 (p. 3-26)
- */
-register SSTAT3 {
- address 0x00e
- access_mode RO
- mask SCSICNT 0xf0
- mask OFFCNT 0x0f
-}
-
-/*
- * SCSI ID for the aic7890/91 chips
- */
-register SCSIID_ULTRA2 {
- address 0x00f
- access_mode RW
- mask TID 0xf0 /* Target ID mask */
- mask OID 0x0f /* Our ID mask */
-}
-
-/*
- * SCSI Interrupt Mode 1 (p. 3-28)
- * Setting any bit will enable the corresponding function
- * in SIMODE0 to interrupt via the IRQ pin.
- */
-register SIMODE0 {
- address 0x010
- access_mode RW
- bit ENSELDO 0x40
- bit ENSELDI 0x20
- bit ENSELINGO 0x10
- bit ENSWRAP 0x08
- bit ENIOERR 0x08 /* LVD Tranceiver mode changes */
- bit ENSDONE 0x04
- bit ENSPIORDY 0x02
- bit ENDMADONE 0x01
-}
-
-/*
- * SCSI Interrupt Mode 1 (pp. 3-28,29)
- * Setting any bit will enable the corresponding function
- * in SIMODE1 to interrupt via the IRQ pin.
- */
-register SIMODE1 {
- address 0x011
- access_mode RW
- bit ENSELTIMO 0x80
- bit ENATNTARG 0x40
- bit ENSCSIRST 0x20
- bit ENPHASEMIS 0x10
- bit ENBUSFREE 0x08
- bit ENSCSIPERR 0x04
- bit ENPHASECHG 0x02
- bit ENREQINIT 0x01
-}
-
-/*
- * SCSI Data Bus (High) (p. 3-29)
- * This register reads data on the SCSI Data bus directly.
- */
-register SCSIBUSL {
- address 0x012
- access_mode RO
-}
-
-register SCSIBUSH {
- address 0x013
- access_mode RO
-}
-
-/*
- * SCSI/Host Address (p. 3-30)
- * These registers hold the host address for the byte about to be
- * transferred on the SCSI bus. They are counted up in the same
- * manner as STCNT is counted down. SHADDR should always be used
- * to determine the address of the last byte transferred since HADDR
- * can be skewed by write ahead.
- */
-register SHADDR {
- address 0x014
- size 4
- access_mode RO
-}
-
-/*
- * Selection Timeout Timer (p. 3-30)
- */
-register SELTIMER {
- address 0x018
- access_mode RW
- bit STAGE6 0x20
- bit STAGE5 0x10
- bit STAGE4 0x08
- bit STAGE3 0x04
- bit STAGE2 0x02
- bit STAGE1 0x01
-}
-
-/*
- * Selection/Reselection ID (p. 3-31)
- * Upper four bits are the device id. The ONEBIT is set when the re/selecting
- * device did not set its own ID.
- */
-register SELID {
- address 0x019
- access_mode RW
- mask SELID_MASK 0xf0
- bit ONEBIT 0x08
-}
-
-/*
- * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book)
- * Indicates if external logic has been attached to the chip to
- * perform the tasks of accessing a serial eeprom, testing termination
- * strength, and performing cable detection. On the aic7860, most of
- * these features are handled on chip, but on the aic7855 an attached
- * aic3800 does the grunt work.
- */
-register SPIOCAP {
- address 0x01b
- access_mode RW
- bit SOFT1 0x80
- bit SOFT0 0x40
- bit SOFTCMDEN 0x20
- bit HAS_BRDCTL 0x10 /* External Board control */
- bit SEEPROM 0x08 /* External serial eeprom logic */
- bit EEPROM 0x04 /* Writable external BIOS ROM */
- bit ROM 0x02 /* Logic for accessing external ROM */
- bit SSPIOCPS 0x01 /* Termination and cable detection */
-}
-
-/*
- * SCSI Block Control (p. 3-32)
- * Controls Bus type and channel selection. In a twin channel configuration
- * addresses 0x00-0x1e are gated to the appropriate channel based on this
- * register. SELWIDE allows for the coexistence of 8bit and 16bit devices
- * on a wide bus.
- */
-register SBLKCTL {
- address 0x01f
- access_mode RW
- bit DIAGLEDEN 0x80 /* Aic78X0 only */
- bit DIAGLEDON 0x40 /* Aic78X0 only */
- bit AUTOFLUSHDIS 0x20
- bit SELBUSB 0x08
- bit ENAB40 0x08 /* LVD transceiver active */
- bit ENAB20 0x04 /* SE/HVD transceiver active */
- bit SELWIDE 0x02
- bit XCVR 0x01 /* External transceiver active */
-}
-
-/*
- * Sequencer Control (p. 3-33)
- * Error detection mode and speed configuration
- */
-register SEQCTL {
- address 0x060
- access_mode RW
- bit PERRORDIS 0x80
- bit PAUSEDIS 0x40
- bit FAILDIS 0x20
- bit FASTMODE 0x10
- bit BRKADRINTEN 0x08
- bit STEP 0x04
- bit SEQRESET 0x02
- bit LOADRAM 0x01
-}
-
-/*
- * Sequencer RAM Data (p. 3-34)
- * Single byte window into the Scratch Ram area starting at the address
- * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write
- * four bytes in succession. The SEQADDRs will increment after the most
- * significant byte is written
- */
-register SEQRAM {
- address 0x061
- access_mode RW
-}
-
-/*
- * Sequencer Address Registers (p. 3-35)
- * Only the first bit of SEQADDR1 holds addressing information
- */
-register SEQADDR0 {
- address 0x062
- access_mode RW
-}
-
-register SEQADDR1 {
- address 0x063
- access_mode RW
- mask SEQADDR1_MASK 0x01
-}
-
-/*
- * Accumulator
- * We cheat by passing arguments in the Accumulator up to the kernel driver
- */
-register ACCUM {
- address 0x064
- access_mode RW
- accumulator
-}
-
-register SINDEX {
- address 0x065
- access_mode RW
- sindex
-}
-
-register DINDEX {
- address 0x066
- access_mode RW
-}
-
-register ALLONES {
- address 0x069
- access_mode RO
- allones
-}
-
-register ALLZEROS {
- address 0x06a
- access_mode RO
- allzeros
-}
-
-register NONE {
- address 0x06a
- access_mode WO
- none
-}
-
-register FLAGS {
- address 0x06b
- access_mode RO
- bit ZERO 0x02
- bit CARRY 0x01
-}
-
-register SINDIR {
- address 0x06c
- access_mode RO
-}
-
-register DINDIR {
- address 0x06d
- access_mode WO
-}
-
-register FUNCTION1 {
- address 0x06e
- access_mode RW
-}
-
-register STACK {
- address 0x06f
- access_mode RO
-}
-
-/*
- * Board Control (p. 3-43)
- */
-register BCTL {
- address 0x084
- access_mode RW
- bit ACE 0x08
- bit ENABLE 0x01
-}
-
-register DSCOMMAND0 {
- address 0x084
- access_mode RW
- bit CACHETHEN 0x80
- bit DPARCKEN 0x40
- bit MPARCKEN 0x20
- bit EXTREQLCK 0x10
- bit INTSCBRAMSEL 0x08
- bit RAMPS 0x04
- bit USCBSIZE32 0x02
- bit CIOPARCKEN 0x01
-}
-
-/*
- * On the aic78X0 chips, Board Control is replaced by the DSCommand
- * register (p. 4-64)
- */
-register DSCOMMAND {
- address 0x084
- access_mode RW
- bit CACHETHEN 0x80 /* Cache Threshold enable */
- bit DPARCKEN 0x40 /* Data Parity Check Enable */
- bit MPARCKEN 0x20 /* Memory Parity Check Enable */
- bit EXTREQLCK 0x10 /* External Request Lock */
-}
-
-/*
- * Bus On/Off Time (p. 3-44)
- */
-register BUSTIME {
- address 0x085
- access_mode RW
- mask BOFF 0xf0
- mask BON 0x0f
-}
-
-/*
- * Bus Speed (p. 3-45)
- */
-register BUSSPD {
- address 0x086
- access_mode RW
- mask DFTHRSH 0xc0
- mask STBOFF 0x38
- mask STBON 0x07
- mask DFTHRSH_100 0xc0
-}
-
-/*
- * Host Control (p. 3-47) R/W
- * Overall host control of the device.
- */
-register HCNTRL {
- address 0x087
- access_mode RW
- bit POWRDN 0x40
- bit SWINT 0x10
- bit IRQMS 0x08
- bit PAUSE 0x04
- bit INTEN 0x02
- bit CHIPRST 0x01
- bit CHIPRSTACK 0x01
-}
-
-/*
- * Host Address (p. 3-48)
- * This register contains the address of the byte about
- * to be transferred across the host bus.
- */
-register HADDR {
- address 0x088
- size 4
- access_mode RW
-}
-
-register HCNT {
- address 0x08c
- size 3
- access_mode RW
-}
-
-/*
- * SCB Pointer (p. 3-49)
- * Gate one of the four SCBs into the SCBARRAY window.
- */
-register SCBPTR {
- address 0x090
- access_mode RW
-}
-
-/*
- * Interrupt Status (p. 3-50)
- * Status for system interrupts
- */
-register INTSTAT {
- address 0x091
- access_mode RW
- bit BRKADRINT 0x08
- bit SCSIINT 0x04
- bit CMDCMPLT 0x02
- bit SEQINT 0x01
- mask BAD_PHASE SEQINT /* unknown scsi bus phase */
- mask SEND_REJECT 0x10|SEQINT /* sending a message reject */
- mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/
- mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */
- mask EXTENDED_MSG 0x40|SEQINT /* Extended message received */
- mask WIDE_RESIDUE 0x50|SEQINT /* need kernel to back up */
- /* the SG array for us */
- mask REJECT_MSG 0x60|SEQINT /* Reject message received */
- mask BAD_STATUS 0x70|SEQINT /* Bad status from target */
- mask RESIDUAL 0x80|SEQINT /* Residual byte count != 0 */
- mask AWAITING_MSG 0xa0|SEQINT /*
- * Kernel requested to specify
- * a message to this target
- * (command was null), so tell
- * it that it can fill the
- * message buffer.
- */
- mask SEQ_SG_FIXUP 0xb0|SEQINT /* need help with fixing up
- * the sg array pointer after
- * a phasemis with no valid
- * sg elements in the shadow
- * pipeline.
- */
- mask TRACEPOINT2 0xc0|SEQINT
- mask MSGIN_PHASEMIS 0xd0|SEQINT /*
- * Target changed phase on us
- * when we were expecting
- * another msgin byte.
- */
- mask DATA_OVERRUN 0xe0|SEQINT /*
- * Target attempted to write
- * beyond the bounds of its
- * command.
- */
-
- mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */
- mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
-}
-
-/*
- * Hard Error (p. 3-53)
- * Reporting of catastrophic errors. You usually cannot recover from
- * these without a full board reset.
- */
-register ERROR {
- address 0x092
- access_mode RO
- bit CIOPARERR 0x80 /* Ultra2 only */
- bit PCIERRSTAT 0x40 /* PCI only */
- bit MPARERR 0x20 /* PCI only */
- bit DPARERR 0x10 /* PCI only */
- bit SQPARERR 0x08
- bit ILLOPCODE 0x04
- bit ILLSADDR 0x02
- bit DSCTMOUT 0x02 /* Ultra3 only */
- bit ILLHADDR 0x01
-}
-
-/*
- * Clear Interrupt Status (p. 3-52)
- */
-register CLRINT {
- address 0x092
- access_mode WO
- bit CLRPARERR 0x10 /* PCI only */
- bit CLRBRKADRINT 0x08
- bit CLRSCSIINT 0x04
- bit CLRCMDINT 0x02
- bit CLRSEQINT 0x01
-}
-
-register DFCNTRL {
- address 0x093
- access_mode RW
- bit PRELOADEN 0x80 /* aic7890 only */
- bit WIDEODD 0x40
- bit SCSIEN 0x20
- bit SDMAEN 0x10
- bit SDMAENACK 0x10
- bit HDMAEN 0x08
- bit HDMAENACK 0x08
- bit DIRECTION 0x04
- bit FIFOFLUSH 0x02
- bit FIFORESET 0x01
-}
-
-register DFSTATUS {
- address 0x094
- access_mode RO
- bit PRELOAD_AVAIL 0x80
- bit DWORDEMP 0x20
- bit MREQPEND 0x10
- bit HDONE 0x08
- bit DFTHRESH 0x04
- bit FIFOFULL 0x02
- bit FIFOEMP 0x01
-}
-
-register DFDAT {
- address 0x099
- access_mode RW
-}
-
-/*
- * SCB Auto Increment (p. 3-59)
- * Byte offset into the SCB Array and an optional bit to allow auto
- * incrementing of the address during download and upload operations
- */
-register SCBCNT {
- address 0x09a
- access_mode RW
- bit SCBAUTO 0x80
- mask SCBCNT_MASK 0x1f
-}
-
-/*
- * Queue In FIFO (p. 3-60)
- * Input queue for queued SCBs (commands that the seqencer has yet to start)
- */
-register QINFIFO {
- address 0x09b
- access_mode RW
-}
-
-/*
- * Queue In Count (p. 3-60)
- * Number of queued SCBs
- */
-register QINCNT {
- address 0x09c
- access_mode RO
-}
-
-/*
- * SCSIDATL IMAGE Register (p. 5-104)
- * Write to this register also go to SCSIDATL but this register will preserve
- * the data for later reading as long as the SCSIDATL_IMGEN bit in the
- * OPTIONMODE register is set.
- */
-register SCSIDATL_IMG {
- address 0x09c
- access_mode RW
-}
-
-/*
- * Queue Out FIFO (p. 3-61)
- * Queue of SCBs that have completed and await the host
- */
-register QOUTFIFO {
- address 0x09d
- access_mode WO
-}
-
-/*
- * CRC Control 1 Register (p. 5-105)
- * Control bits for the Ultra 160/m CRC facilities
- */
-register CRCCONTROL1 {
- address 0x09d
- access_mode RW
- bit CRCONSEEN 0x80 /* CRC ON Single Edge ENable */
- bit CRCVALCHKEN 0x40 /* CRC Value Check Enable */
- bit CRCENDCHKEN 0x20 /* CRC End Check Enable */
- bit CRCREQCHKEN 0x10
- bit TARGCRCENDEN 0x08 /* Enable End CRC transfer when target */
- bit TARGCRCCNTEN 0x04 /* Enable CRC transfer when target */
-}
-
-/*
- * Queue Out Count (p. 3-61)
- * Number of queued SCBs in the Out FIFO
- */
-register QOUTCNT {
- address 0x09e
- access_mode RO
-}
-
-/*
- * SCSI Phase Register (p. 5-106)
- * Current bus phase
- */
-register SCSIPHASE {
- address 0x09e
- access_mode RO
- bit SP_STATUS 0x20
- bit SP_COMMAND 0x10
- bit SP_MSG_IN 0x08
- bit SP_MSG_OUT 0x04
- bit SP_DATA_IN 0x02
- bit SP_DATA_OUT 0x01
-}
-
-/*
- * Special Function
- */
-register SFUNCT {
- address 0x09f
- access_mode RW
- bit ALT_MODE 0x80
-}
-
-/*
- * SCB Definition (p. 5-4)
- */
-scb {
- address 0x0a0
- SCB_CONTROL {
- size 1
- bit MK_MESSAGE 0x80
- bit DISCENB 0x40
- bit TAG_ENB 0x20
- bit DISCONNECTED 0x04
- mask SCB_TAG_TYPE 0x03
- }
- SCB_TCL {
- size 1
- bit SELBUSB 0x08
- mask TID 0xf0
- mask LID 0x07
- }
- SCB_TARGET_STATUS {
- size 1
- }
- SCB_SGCOUNT {
- size 1
- }
- SCB_SGPTR {
- size 4
- }
- SCB_RESID_SGCNT {
- size 1
- }
- SCB_RESID_DCNT {
- size 3
- }
- SCB_DATAPTR {
- size 4
- }
- SCB_DATACNT {
- /*
- * Really only 3 bytes, but padded to make
- * the kernel's job easier.
- */
- size 4
- }
- SCB_CMDPTR {
- size 4
- }
- SCB_CMDLEN {
- size 1
- }
- SCB_TAG {
- size 1
- }
- SCB_NEXT {
- size 1
- }
- SCB_PREV {
- size 1
- }
- SCB_BUSYTARGETS {
- size 4
- }
-}
-
-const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
-
-/* --------------------- AHA-2840-only definitions -------------------- */
-
-register SEECTL_2840 {
- address 0x0c0
- access_mode RW
- bit CS_2840 0x04
- bit CK_2840 0x02
- bit DO_2840 0x01
-}
-
-register STATUS_2840 {
- address 0x0c1
- access_mode RW
- bit EEPROM_TF 0x80
- mask BIOS_SEL 0x60
- mask ADSEL 0x1e
- bit DI_2840 0x01
-}
-
-/* --------------------- AIC-7870-only definitions -------------------- */
-
-register DSPCISTATUS {
- address 0x086
- mask DFTHRSH_100 0xc0
-}
-
-register CCHADDR {
- address 0x0E0
- size 8
-}
-
-register CCHCNT {
- address 0x0E8
-}
-
-register CCSGRAM {
- address 0x0E9
-}
-
-register CCSGADDR {
- address 0x0EA
-}
-
-register CCSGCTL {
- address 0x0EB
- bit CCSGDONE 0x80
- bit CCSGEN 0x08
- bit FLAG 0x02
- bit CCSGRESET 0x01
-}
-
-register CCSCBCNT {
- address 0xEF
-}
-
-register CCSCBCTL {
- address 0x0EE
- bit CCSCBDONE 0x80
- bit ARRDONE 0x40 /* SCB Array prefetch done */
- bit CCARREN 0x10
- bit CCSCBEN 0x08
- bit CCSCBDIR 0x04
- bit CCSCBRESET 0x01
-}
-
-register CCSCBADDR {
- address 0x0ED
-}
-
-register CCSCBRAM {
- address 0xEC
-}
-
-register CCSCBPTR {
- address 0x0F1
-}
-
-register HNSCB_QOFF {
- address 0x0F4
-}
-
-register HESCB_QOFF {
- address 0x0F5
-}
-
-register SNSCB_QOFF {
- address 0x0F6
-}
-
-register SESCB_QOFF {
- address 0x0F7
-}
-
-register SDSCB_QOFF {
- address 0x0F8
-}
-
-register QOFF_CTLSTA {
- address 0x0FA
- bit ESTABLISH_SCB_AVAIL 0x80
- bit SCB_AVAIL 0x40
- bit SNSCB_ROLLOVER 0x20
- bit SDSCB_ROLLOVER 0x10
- bit SESCB_ROLLOVER 0x08
- mask SCB_QSIZE 0x07
- mask SCB_QSIZE_256 0x06
-}
-
-register DFF_THRSH {
- address 0x0FB
- mask WR_DFTHRSH 0x70
- mask RD_DFTHRSH 0x07
- mask RD_DFTHRSH_MIN 0x00
- mask RD_DFTHRSH_25 0x01
- mask RD_DFTHRSH_50 0x02
- mask RD_DFTHRSH_63 0x03
- mask RD_DFTHRSH_75 0x04
- mask RD_DFTHRSH_85 0x05
- mask RD_DFTHRSH_90 0x06
- mask RD_DFTHRSH_MAX 0x07
- mask WR_DFTHRSH_MIN 0x00
- mask WR_DFTHRSH_25 0x10
- mask WR_DFTHRSH_50 0x20
- mask WR_DFTHRSH_63 0x30
- mask WR_DFTHRSH_75 0x40
- mask WR_DFTHRSH_85 0x50
- mask WR_DFTHRSH_90 0x60
- mask WR_DFTHRSH_MAX 0x70
-}
-
-register SG_CACHEPTR {
- access_mode RW
- address 0x0fc
- mask SG_USER_DATA 0xfc
- bit LAST_SEG 0x02
- bit LAST_SEG_DONE 0x01
-}
-
-register BRDCTL {
- address 0x01d
- bit BRDDAT7 0x80
- bit BRDDAT6 0x40
- bit BRDDAT5 0x20
- bit BRDSTB 0x10
- bit BRDCS 0x08
- bit BRDRW 0x04
- bit BRDCTL1 0x02
- bit BRDCTL0 0x01
- /* 7890 Definitions */
- bit BRDDAT4 0x10
- bit BRDDAT3 0x08
- bit BRDDAT2 0x04
- bit BRDRW_ULTRA2 0x02
- bit BRDSTB_ULTRA2 0x01
-}
-
-/*
- * Serial EEPROM Control (p. 4-92 in 7870 Databook)
- * Controls the reading and writing of an external serial 1-bit
- * EEPROM Device. In order to access the serial EEPROM, you must
- * first set the SEEMS bit that generates a request to the memory
- * port for access to the serial EEPROM device. When the memory
- * port is not busy servicing another request, it reconfigures
- * to allow access to the serial EEPROM. When this happens, SEERDY
- * gets set high to verify that the memory port access has been
- * granted.
- *
- * After successful arbitration for the memory port, the SEECS bit of
- * the SEECTL register is connected to the chip select. The SEECK,
- * SEEDO, and SEEDI are connected to the clock, data out, and data in
- * lines respectively. The SEERDY bit of SEECTL is useful in that it
- * gives us an 800 nsec timer. After a write to the SEECTL register,
- * the SEERDY goes high 800 nsec later. The one exception to this is
- * when we first request access to the memory port. The SEERDY goes
- * high to signify that access has been granted and, for this case, has
- * no implied timing.
- *
- * See 93cx6.c for detailed information on the protocol necessary to
- * read the serial EEPROM.
- */
-register SEECTL {
- address 0x01e
- bit EXTARBACK 0x80
- bit EXTARBREQ 0x40
- bit SEEMS 0x20
- bit SEERDY 0x10
- bit SEECS 0x08
- bit SEECK 0x04
- bit SEEDO 0x02
- bit SEEDI 0x01
-}
-/* ---------------------- Scratch RAM Offsets ------------------------- */
-/* These offsets are either to values that are initialized by the board's
- * BIOS or are specified by the sequencer code.
- *
- * The host adapter card (at least the BIOS) uses 20-2f for SCSI
- * device information, 32-33 and 5a-5f as well. As it turns out, the
- * BIOS trashes 20-2f, writing the synchronous negotiation results
- * on top of the BIOS values, so we re-use those for our per-target
- * scratchspace (actually a value that can be copied directly into
- * SCSIRATE). The kernel driver will enable synchronous negotiation
- * for all targets that have a value other than 0 in the lower four
- * bits of the target scratch space. This should work regardless of
- * whether the bios has been installed.
- */
-
-scratch_ram {
- address 0x020
-
- /*
- * 1 byte per target starting at this address for configuration values
- */
- TARG_SCSIRATE {
- size 16
- }
- /*
- * Bit vector of targets that have ULTRA enabled.
- */
- ULTRA_ENB {
- size 2
- }
- /*
- * Bit vector of targets that have disconnection disabled.
- */
- DISC_DSB {
- size 2
- }
- /*
- * Single byte buffer used to designate the type or message
- * to send to a target.
- */
- MSG_OUT {
- size 1
- }
- /* Parameters for DMA Logic */
- DMAPARAMS {
- size 1
- bit PRELOADEN 0x80
- bit WIDEODD 0x40
- bit SCSIEN 0x20
- bit SDMAEN 0x10
- bit SDMAENACK 0x10
- bit HDMAEN 0x08
- bit HDMAENACK 0x08
- bit DIRECTION 0x04
- bit FIFOFLUSH 0x02
- bit FIFORESET 0x01
- }
- SEQ_FLAGS {
- size 1
- bit IDENTIFY_SEEN 0x80
- bit SCBPTR_VALID 0x20
- bit DPHASE 0x10
- bit AMTARGET 0x08
- bit WIDE_BUS 0x02
- bit TWIN_BUS 0x01
- }
- /*
- * Temporary storage for the
- * target/channel/lun of a
- * reconnecting target
- */
- SAVED_TCL {
- size 1
- }
- /* Working value of the number of SG segments left */
- SG_COUNT {
- size 1
- }
- /* Working value of SG pointer */
- SG_NEXT {
- size 4
- }
- /*
- * The last bus phase as seen by the sequencer.
- */
- LASTPHASE {
- size 1
- bit CDI 0x80
- bit IOI 0x40
- bit MSGI 0x20
- mask PHASE_MASK CDI|IOI|MSGI
- mask P_DATAOUT 0x00
- mask P_DATAIN IOI
- mask P_COMMAND CDI
- mask P_MESGOUT CDI|MSGI
- mask P_STATUS CDI|IOI
- mask P_MESGIN CDI|IOI|MSGI
- mask P_BUSFREE 0x01
- }
- /*
- * head of list of SCBs awaiting
- * selection
- */
- WAITING_SCBH {
- size 1
- }
- /*
- * head of list of SCBs that are
- * disconnected. Used for SCB
- * paging.
- */
- DISCONNECTED_SCBH {
- size 1
- }
- /*
- * head of list of SCBs that are
- * not in use. Used for SCB paging.
- */
- FREE_SCBH {
- size 1
- }
- /*
- * Address of the hardware scb array in the host.
- */
- HSCB_ADDR {
- size 4
- }
- /*
- * Address of the 256 byte array storing the SCBID of outstanding
- * untagged SCBs indexed by TCL.
- */
- SCBID_ADDR {
- size 4
- }
- /*
- * Address of the array of command descriptors used to store
- * information about incoming selections.
- */
- TMODE_CMDADDR {
- size 4
- }
- KERNEL_QINPOS {
- size 1
- }
- QINPOS {
- size 1
- }
- QOUTPOS {
- size 1
- }
- /*
- * Offset into the command descriptor array for the next
- * available desciptor to use.
- */
- TMODE_CMDADDR_NEXT {
- size 1
- }
- ARG_1 {
- size 1
- mask SEND_MSG 0x80
- mask SEND_SENSE 0x40
- mask SEND_REJ 0x20
- mask MSGOUT_PHASEMIS 0x10
- alias RETURN_1
- }
- ARG_2 {
- size 1
- alias RETURN_2
- }
-
- /*
- * Snapshot of MSG_OUT taken after each message is sent.
- */
- LAST_MSG {
- size 1
- }
-
- /*
- * Number of times we have filled the CCSGRAM with prefetched
- * SG elements.
- */
- PREFETCH_CNT {
- size 1
- }
-
-
- /*
- * These are reserved registers in the card's scratch ram. Some of
- * the values are specified in the AHA2742 technical reference manual
- * and are initialized by the BIOS at boot time.
- */
- SCSICONF {
- address 0x05a
- size 1
- bit TERM_ENB 0x80
- bit RESET_SCSI 0x40
- mask HSCSIID 0x07 /* our SCSI ID */
- mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */
- }
- HOSTCONF {
- address 0x05d
- size 1
- }
- HA_274_BIOSCTRL {
- address 0x05f
- size 1
- mask BIOSMODE 0x30
- mask BIOSDISABLED 0x30
- bit CHANNEL_B_PRIMARY 0x08
- }
- /*
- * Per target SCSI offset values for Ultra2 controllers.
- */
- TARG_OFFSET {
- address 0x070
- size 16
- }
-}
-
-const SCB_LIST_NULL 0xff
-
-const CCSGADDR_MAX 0x80
-const CCSGRAM_MAXSEGS 16
-
-/* Offsets into the SCBID array where different data is stored */
-const UNTAGGEDSCB_OFFSET 0
-const QOUTFIFO_OFFSET 1
-const QINFIFO_OFFSET 2
-
-/* WDTR Message values */
-const BUS_8_BIT 0x00
-const BUS_16_BIT 0x01
-const BUS_32_BIT 0x02
-
-/* Offset maximums */
-const MAX_OFFSET_8BIT 0x0f
-const MAX_OFFSET_16BIT 0x08
-const MAX_OFFSET_ULTRA2 0x7f
-const HOST_MSG 0xff
-
-/* Target mode command processing constants */
-const CMD_GROUP_CODE_SHIFT 0x05
-const CMD_GROUP0_BYTE_DELTA -4
-const CMD_GROUP2_BYTE_DELTA -6
-const CMD_GROUP4_BYTE_DELTA 4
-const CMD_GROUP5_BYTE_DELTA 11
-
-/*
- * Downloaded (kernel inserted) constants
- */
-
-/*
- * Number of command descriptors in the command descriptor array.
- */
-const TMODE_NUMCMDS download
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.seq b/drivers/scsi/aic7xxx_old/aic7xxx.seq
deleted file mode 100644
index dc3bb81cff0c..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx.seq
+++ /dev/null
@@ -1,1539 +0,0 @@
-/*
- * Adaptec 274x/284x/294x device driver firmware for Linux and FreeBSD.
- *
- * Copyright (c) 1994-1999 Justin Gibbs.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU General Public License (GPL) and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: aic7xxx.seq,v 1.77 1998/06/28 02:58:57 gibbs Exp $
- */
-
-#include "aic7xxx.reg"
-#include "scsi_message.h"
-
-/*
- * A few words on the waiting SCB list:
- * After starting the selection hardware, we check for reconnecting targets
- * as well as for our selection to complete just in case the reselection wins
- * bus arbitration. The problem with this is that we must keep track of the
- * SCB that we've already pulled from the QINFIFO and started the selection
- * on just in case the reselection wins so that we can retry the selection at
- * a later time. This problem cannot be resolved by holding a single entry
- * in scratch ram since a reconnecting target can request sense and this will
- * create yet another SCB waiting for selection. The solution used here is to
- * use byte 27 of the SCB as a pseudo-next pointer and to thread a list
- * of SCBs that are awaiting selection. Since 0-0xfe are valid SCB indexes,
- * SCB_LIST_NULL is 0xff which is out of range. An entry is also added to
- * this list every time a request sense occurs or after completing a non-tagged
- * command for which a second SCB has been queued. The sequencer will
- * automatically consume the entries.
- */
-
-reset:
- clr SCSISIGO; /* De-assert BSY */
- and SXFRCTL1, ~BITBUCKET;
- /* Always allow reselection */
- mvi SCSISEQ, ENRSELI|ENAUTOATNP;
-
- if ((p->features & AHC_CMD_CHAN) != 0) {
- /* Ensure that no DMA operations are in progress */
- clr CCSGCTL;
- clr CCSCBCTL;
- }
-
- call clear_target_state;
-poll_for_work:
- and SXFRCTL0, ~SPIOEN;
- if ((p->features & AHC_QUEUE_REGS) == 0) {
- mov A, QINPOS;
- }
-poll_for_work_loop:
- if ((p->features & AHC_QUEUE_REGS) == 0) {
- and SEQCTL, ~PAUSEDIS;
- }
- test SSTAT0, SELDO|SELDI jnz selection;
- test SCSISEQ, ENSELO jnz poll_for_work;
- if ((p->features & AHC_TWIN) != 0) {
- /*
- * Twin channel devices cannot handle things like SELTO
- * interrupts on the "background" channel. So, if we
- * are selecting, keep polling the current channel util
- * either a selection or reselection occurs.
- */
- xor SBLKCTL,SELBUSB; /* Toggle to the other bus */
- test SSTAT0, SELDO|SELDI jnz selection;
- test SCSISEQ, ENSELO jnz poll_for_work;
- xor SBLKCTL,SELBUSB; /* Toggle back */
- }
- cmp WAITING_SCBH,SCB_LIST_NULL jne start_waiting;
-test_queue:
- /* Has the driver posted any work for us? */
- if ((p->features & AHC_QUEUE_REGS) != 0) {
- test QOFF_CTLSTA, SCB_AVAIL jz poll_for_work_loop;
- mov NONE, SNSCB_QOFF;
- inc QINPOS;
- } else {
- or SEQCTL, PAUSEDIS;
- cmp KERNEL_QINPOS, A je poll_for_work_loop;
- inc QINPOS;
- and SEQCTL, ~PAUSEDIS;
- }
-
-/*
- * We have at least one queued SCB now and we don't have any
- * SCBs in the list of SCBs awaiting selection. If we have
- * any SCBs available for use, pull the tag from the QINFIFO
- * and get to work on it.
- */
- if ((p->flags & AHC_PAGESCBS) != 0) {
- mov ALLZEROS call get_free_or_disc_scb;
- }
-
-dequeue_scb:
- add A, -1, QINPOS;
- mvi QINFIFO_OFFSET call fetch_byte;
-
- if ((p->flags & AHC_PAGESCBS) == 0) {
- /* In the non-paging case, the SCBID == hardware SCB index */
- mov SCBPTR, RETURN_2;
- }
-dma_queued_scb:
-/*
- * DMA the SCB from host ram into the current SCB location.
- */
- mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
- mov RETURN_2 call dma_scb;
-
-/*
- * Preset the residual fields in case we never go through a data phase.
- * This isn't done by the host so we can avoid a DMA to clear these
- * fields for the normal case of I/O that completes without underrun
- * or overrun conditions.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov SCB_RESID_DCNT, SCB_DATACNT, 3;
- } else {
- mov SCB_RESID_DCNT[0],SCB_DATACNT[0];
- mov SCB_RESID_DCNT[1],SCB_DATACNT[1];
- mov SCB_RESID_DCNT[2],SCB_DATACNT[2];
- }
- mov SCB_RESID_SGCNT, SCB_SGCOUNT;
-
-start_scb:
- /*
- * Place us on the waiting list in case our selection
- * doesn't win during bus arbitration.
- */
- mov SCB_NEXT,WAITING_SCBH;
- mov WAITING_SCBH, SCBPTR;
-start_waiting:
- /*
- * Pull the first entry off of the waiting SCB list.
- */
- mov SCBPTR, WAITING_SCBH;
- call start_selection;
- jmp poll_for_work;
-
-start_selection:
- if ((p->features & AHC_TWIN) != 0) {
- and SINDEX,~SELBUSB,SBLKCTL;/* Clear channel select bit */
- and A,SELBUSB,SCB_TCL; /* Get new channel bit */
- or SINDEX,A;
- mov SBLKCTL,SINDEX; /* select channel */
- }
-initialize_scsiid:
- if ((p->features & AHC_ULTRA2) != 0) {
- and A, TID, SCB_TCL; /* Get target ID */
- and SCSIID_ULTRA2, OID; /* Clear old target */
- or SCSIID_ULTRA2, A;
- } else {
- and A, TID, SCB_TCL; /* Get target ID */
- and SCSIID, OID; /* Clear old target */
- or SCSIID, A;
- }
- mov SCSIDATL, ALLZEROS; /* clear out the latched */
- /* data register, this */
- /* fixes a bug on some */
- /* controllers where the */
- /* last byte written to */
- /* this register can leak */
- /* onto the data bus at */
- /* bad times, such as during */
- /* selection timeouts */
- mvi SCSISEQ, ENSELO|ENAUTOATNO|ENRSELI|ENAUTOATNP ret;
-
-/*
- * Initialize Ultra mode setting and clear the SCSI channel.
- * SINDEX should contain any additional bit's the client wants
- * set in SXFRCTL0.
- */
-initialize_channel:
- or SXFRCTL0, CLRSTCNT|CLRCHN, SINDEX;
- if ((p->features & AHC_ULTRA) != 0) {
-ultra:
- mvi SINDEX, ULTRA_ENB+1;
- test SAVED_TCL, 0x80 jnz ultra_2; /* Target ID > 7 */
- dec SINDEX;
-ultra_2:
- mov FUNCTION1,SAVED_TCL;
- mov A,FUNCTION1;
- test SINDIR, A jz ndx_dtr;
- or SXFRCTL0, FAST20;
- }
-/*
- * Initialize SCSIRATE with the appropriate value for this target.
- * The SCSIRATE settings for each target are stored in an array
- * based at TARG_SCSIRATE.
- */
-ndx_dtr:
- shr A,4,SAVED_TCL;
- if ((p->features & AHC_TWIN) != 0) {
- test SBLKCTL,SELBUSB jz ndx_dtr_2;
- or SAVED_TCL, SELBUSB;
- or A,0x08; /* Channel B entries add 8 */
-ndx_dtr_2:
- }
-
- if ((p->features & AHC_ULTRA2) != 0) {
- add SINDEX, TARG_OFFSET, A;
- mov SCSIOFFSET, SINDIR;
- }
-
- add SINDEX,TARG_SCSIRATE,A;
- mov SCSIRATE,SINDIR ret;
-
-
-selection:
- test SSTAT0,SELDO jnz select_out;
-/*
- * Reselection has been initiated by a target. Make a note that we've been
- * reselected, but haven't seen an IDENTIFY message from the target yet.
- */
-initiator_reselect:
- mvi CLRSINT0, CLRSELDI;
- /* XXX test for and handle ONE BIT condition */
- and SAVED_TCL, SELID_MASK, SELID;
- mvi CLRSINT1,CLRBUSFREE;
- or SIMODE1, ENBUSFREE; /*
- * We aren't expecting a
- * bus free, so interrupt
- * the kernel driver if it
- * happens.
- */
- mvi SPIOEN call initialize_channel;
- mvi MSG_OUT, MSG_NOOP; /* No message to send */
- jmp ITloop;
-
-/*
- * After the selection, remove this SCB from the "waiting SCB"
- * list. This is achieved by simply moving our "next" pointer into
- * WAITING_SCBH. Our next pointer will be set to null the next time this
- * SCB is used, so don't bother with it now.
- */
-select_out:
- /* Turn off the selection hardware */
- mvi SCSISEQ, ENRSELI|ENAUTOATNP; /*
- * ATN on parity errors
- * for "in" phases
- */
- mvi CLRSINT0, CLRSELDO;
- mov SCBPTR, WAITING_SCBH;
- mov WAITING_SCBH,SCB_NEXT;
- mov SAVED_TCL, SCB_TCL;
- mvi CLRSINT1,CLRBUSFREE;
- or SIMODE1, ENBUSFREE; /*
- * We aren't expecting a
- * bus free, so interrupt
- * the kernel driver if it
- * happens.
- */
- mvi SPIOEN call initialize_channel;
-/*
- * As soon as we get a successful selection, the target should go
- * into the message out phase since we have ATN asserted.
- */
- mvi MSG_OUT, MSG_IDENTIFYFLAG;
- or SEQ_FLAGS, IDENTIFY_SEEN;
-
-/*
- * Main loop for information transfer phases. Wait for the target
- * to assert REQ before checking MSG, C/D and I/O for the bus phase.
- */
-ITloop:
- call phase_lock;
-
- mov A, LASTPHASE;
-
- test A, ~P_DATAIN jz p_data;
- cmp A,P_COMMAND je p_command;
- cmp A,P_MESGOUT je p_mesgout;
- cmp A,P_STATUS je p_status;
- cmp A,P_MESGIN je p_mesgin;
-
- mvi INTSTAT,BAD_PHASE; /* unknown phase - signal driver */
- jmp ITloop; /* Try reading the bus again. */
-
-await_busfree:
- and SIMODE1, ~ENBUSFREE;
- call clear_target_state;
- mov NONE, SCSIDATL; /* Ack the last byte */
- and SXFRCTL0, ~SPIOEN;
- test SSTAT1,REQINIT|BUSFREE jz .;
- test SSTAT1, BUSFREE jnz poll_for_work;
- mvi INTSTAT, BAD_PHASE;
-
-clear_target_state:
- /*
- * We assume that the kernel driver may reset us
- * at any time, even in the middle of a DMA, so
- * clear DFCNTRL too.
- */
- clr DFCNTRL;
-
- /*
- * We don't know the target we will connect to,
- * so default to narrow transfers to avoid
- * parity problems.
- */
- if ((p->features & AHC_ULTRA2) != 0) {
- bmov SCSIRATE, ALLZEROS, 2;
- } else {
- clr SCSIRATE;
- and SXFRCTL0, ~(FAST20);
- }
- mvi LASTPHASE, P_BUSFREE;
- /* clear target specific flags */
- clr SEQ_FLAGS ret;
-
-
-data_phase_reinit:
-/*
- * If we re-enter the data phase after going through another phase, the
- * STCNT may have been cleared, so restore it from the residual field.
- * On Ultra2, we have to put it into the HCNT field because we have to
- * drop the data down into the shadow layer via the preload ability.
- */
- if ((p->features & AHC_ULTRA2) != 0) {
- bmov HADDR, SHADDR, 4;
- bmov HCNT, SCB_RESID_DCNT, 3;
- }
- if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
- bmov STCNT, SCB_RESID_DCNT, 3;
- }
- if ((p->features & AHC_CMD_CHAN) == 0) {
- mvi DINDEX, STCNT;
- mvi SCB_RESID_DCNT call bcopy_3;
- }
- jmp data_phase_loop;
-p_data:
- if ((p->features & AHC_ULTRA2) != 0) {
- mvi DMAPARAMS, PRELOADEN|SCSIEN|HDMAEN;
- } else {
- mvi DMAPARAMS, WIDEODD|SCSIEN|SDMAEN|HDMAEN|FIFORESET;
- }
- test LASTPHASE, IOI jnz . + 2;
- or DMAPARAMS, DIRECTION;
- call assert; /*
- * Ensure entering a data
- * phase is okay - seen identify, etc.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- mvi CCSGADDR, CCSGADDR_MAX;
- }
-
- test SEQ_FLAGS, DPHASE jnz data_phase_reinit;
- or SEQ_FLAGS, DPHASE; /* we've seen a data phase */
- /*
- * Initialize the DMA address and counter from the SCB.
- * Also set SG_COUNT and SG_NEXT in memory since we cannot
- * modify the values in the SCB itself until we see a
- * save data pointers message.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov HADDR, SCB_DATAPTR, 7;
- bmov SG_COUNT, SCB_SGCOUNT, 5;
- if ((p->features & AHC_ULTRA2) == 0) {
- bmov STCNT, HCNT, 3;
- }
- } else {
- mvi DINDEX, HADDR;
- mvi SCB_DATAPTR call bcopy_7;
- call set_stcnt_from_hcnt;
- mvi DINDEX, SG_COUNT;
- mvi SCB_SGCOUNT call bcopy_5;
- }
-data_phase_loop:
- /* Guard against overruns */
- test SG_COUNT, 0xff jnz data_phase_inbounds;
-/*
- * Turn on 'Bit Bucket' mode, set the transfer count to
- * 16meg and let the target run until it changes phase.
- * When the transfer completes, notify the host that we
- * had an overrun.
- */
- or SXFRCTL1,BITBUCKET;
- and DMAPARAMS, ~(HDMAEN|SDMAEN);
- if ((p->features & AHC_ULTRA2) != 0) {
- bmov HCNT, ALLONES, 3;
- }
- if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
- bmov STCNT, ALLONES, 3;
- }
- if ((p->features & AHC_CMD_CHAN) == 0) {
- mvi STCNT[0], 0xFF;
- mvi STCNT[1], 0xFF;
- mvi STCNT[2], 0xFF;
- }
-
-data_phase_inbounds:
-/* If we are the last SG block, tell the hardware. */
- if ((p->features & AHC_ULTRA2) != 0) {
- shl A, 2, SG_COUNT;
- cmp SG_COUNT,0x01 jne data_phase_wideodd;
- or A, LAST_SEG;
- } else {
- cmp SG_COUNT,0x01 jne data_phase_wideodd;
- and DMAPARAMS, ~WIDEODD;
- }
-data_phase_wideodd:
- if ((p->features & AHC_ULTRA2) != 0) {
- mov SG_CACHEPTR, A;
- mov DFCNTRL, DMAPARAMS; /* start the operation */
- test SXFRCTL1, BITBUCKET jnz data_phase_overrun;
-u2_preload_wait:
- test SSTAT1, PHASEMIS jnz u2_phasemis;
- test DFSTATUS, PRELOAD_AVAIL jz u2_preload_wait;
- } else {
- mov DMAPARAMS call dma;
-data_phase_dma_done:
-/* Go tell the host about any overruns */
- test SXFRCTL1,BITBUCKET jnz data_phase_overrun;
-
-/* Exit if we had an underrun. dma clears SINDEX in this case. */
- test SINDEX,0xff jz data_phase_finish;
- }
-/*
- * Advance the scatter-gather pointers
- */
-sg_advance:
- if ((p->features & AHC_ULTRA2) != 0) {
- cmp SG_COUNT, 0x01 je u2_data_phase_finish;
- } else {
- dec SG_COUNT;
- test SG_COUNT, 0xff jz data_phase_finish;
- }
-
- if ((p->features & AHC_CMD_CHAN) != 0) {
-
- /*
- * Do we have any prefetch left???
- */
- cmp CCSGADDR, CCSGADDR_MAX jne prefetch_avail;
-
- /*
- * Fetch MIN(CCSGADDR_MAX, (SG_COUNT * 8)) bytes.
- */
- add A, -(CCSGRAM_MAXSEGS + 1), SG_COUNT;
- mvi A, CCSGADDR_MAX;
- jc . + 2;
- shl A, 3, SG_COUNT;
- mov CCHCNT, A;
- bmov CCHADDR, SG_NEXT, 4;
- mvi CCSGCTL, CCSGEN|CCSGRESET;
- test CCSGCTL, CCSGDONE jz .;
- and CCSGCTL, ~CCSGEN;
- test CCSGCTL, CCSGEN jnz .;
- mvi CCSGCTL, CCSGRESET;
-prefetch_avail:
- bmov HADDR, CCSGRAM, 8;
- if ((p->features & AHC_ULTRA2) == 0) {
- bmov STCNT, HCNT, 3;
- } else {
- dec SG_COUNT;
- }
- } else {
- mvi DINDEX, HADDR;
- mvi SG_NEXT call bcopy_4;
-
- mvi HCNT[0],SG_SIZEOF;
- clr HCNT[1];
- clr HCNT[2];
-
- or DFCNTRL, HDMAEN|DIRECTION|FIFORESET;
-
- call dma_finish;
-
-/*
- * Copy data from FIFO into SCB data pointer and data count.
- * This assumes that the SG segments are of the form:
- * struct ahc_dma_seg {
- * u_int32_t addr; four bytes, little-endian order
- * u_int32_t len; four bytes, little endian order
- * };
- */
- mvi DINDEX, HADDR;
- call dfdat_in_7;
- call set_stcnt_from_hcnt;
- }
-/* Advance the SG pointer */
- clr A; /* add sizeof(struct scatter) */
- add SG_NEXT[0],SG_SIZEOF;
- adc SG_NEXT[1],A;
-
- if ((p->features & AHC_ULTRA2) != 0) {
- jmp data_phase_loop;
- } else {
- test SSTAT1, REQINIT jz .;
- test SSTAT1,PHASEMIS jz data_phase_loop;
- }
-
-
-/*
- * We've loaded all of our segments into the preload layer. Now, we simply
- * have to wait for it to finish or for us to get a phasemis. And, since
- * we'll get a phasemis if we do finish, all we really need to do is wait
- * for a phasemis then check if we did actually complete all the segments.
- */
- if ((p->features & AHC_ULTRA2) != 0) {
-u2_data_phase_finish:
- test SSTAT1, PHASEMIS jnz u2_phasemis;
- test SG_CACHEPTR, LAST_SEG_DONE jz u2_data_phase_finish;
- clr SG_COUNT;
- test SSTAT1, REQINIT jz .;
- test SSTAT1, PHASEMIS jz data_phase_loop;
-u2_phasemis:
- call ultra2_dmafinish;
- test SG_CACHEPTR, LAST_SEG_DONE jnz data_phase_finish;
- test SSTAT2, SHVALID jnz u2_fixup_residual;
- mvi INTSTAT, SEQ_SG_FIXUP;
- jmp data_phase_finish;
-u2_fixup_residual:
- shr ARG_1, 2, SG_CACHEPTR;
-u2_phasemis_loop:
- and A, 0x3f, SG_COUNT;
- cmp ARG_1, A je data_phase_finish;
-/*
- * Subtract SG_SIZEOF from the SG_NEXT pointer and add 1 to the SG_COUNT
- */
- clr A;
- add SG_NEXT[0], -SG_SIZEOF;
- adc SG_NEXT[1], 0xff;
- inc SG_COUNT;
- jmp u2_phasemis_loop;
- }
-
-data_phase_finish:
-/*
- * After a DMA finishes, save the SG and STCNT residuals back into the SCB
- * We use STCNT instead of HCNT, since it's a reflection of how many bytes
- * were transferred on the SCSI (as opposed to the host) bus.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov SCB_RESID_DCNT, STCNT, 3;
- mov SCB_RESID_SGCNT, SG_COUNT;
- if ((p->features & AHC_ULTRA2) != 0) {
- or SXFRCTL0, CLRSTCNT|CLRCHN;
- }
- } else {
- mov SCB_RESID_DCNT[0],STCNT[0];
- mov SCB_RESID_DCNT[1],STCNT[1];
- mov SCB_RESID_DCNT[2],STCNT[2];
- mov SCB_RESID_SGCNT, SG_COUNT;
- }
-
- jmp ITloop;
-
-data_phase_overrun:
-/*
- * Turn off BITBUCKET mode and notify the host
- */
- if ((p->features & AHC_ULTRA2) != 0) {
-/*
- * Wait for the target to quit transferring data on the SCSI bus
- */
- test SSTAT1, PHASEMIS jz .;
- call ultra2_dmafinish;
- }
- and SXFRCTL1, ~BITBUCKET;
- mvi INTSTAT,DATA_OVERRUN;
- jmp ITloop;
-
-
-
-
-/*
- * Actually turn off the DMA hardware, save our current position into the
- * proper residual variables, wait for the next REQ signal, then jump to
- * the ITloop. Jumping to the ITloop ensures that if we happen to get
- * brought into the data phase again (or are still in it after our last
- * segment) that we will properly signal an overrun to the kernel.
- */
- if ((p->features & AHC_ULTRA2) != 0) {
-ultra2_dmafinish:
- test DFCNTRL, DIRECTION jnz ultra2_dmahalt;
- and DFCNTRL, ~SCSIEN;
- test DFCNTRL, SCSIEN jnz .;
- if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) {
- or DFCNTRL, FIFOFLUSH;
- }
-ultra2_dmafifoflush:
- if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) {
- /*
- * hardware bug alert! This needless set of jumps
- * works around a glitch in the silicon. When the
- * PCI DMA fifo goes empty, but there is still SCSI
- * data to be flushed into the PCI DMA fifo (and from
- * there on into main memory), the FIFOEMP bit will
- * come on between the time when the PCI DMA buffer
- * went empty and the next bit of data is copied from
- * the SCSI fifo into the PCI fifo. It should only
- * come on when both FIFOs (meaning the entire FIFO
- * chain) are empty. Since it can take up to 4 cycles
- * for new data to be copied from the SCSI fifo into
- * the PCI fifo, testing for FIFOEMP status for 4
- * extra times gives the needed time for any
- * remaining SCSI fifo data to be put in the PCI fifo
- * before we declare it *truly* empty.
- */
- test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
- test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
- test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
- test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
- }
- test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
- test DFSTATUS, MREQPEND jnz .;
-ultra2_dmahalt:
- and DFCNTRL, ~(HDMAEN|SCSIEN);
- test DFCNTRL, (HDMAEN|SCSIEN) jnz .;
- ret;
- }
-
-/*
- * Command phase. Set up the DMA registers and let 'er rip.
- */
-p_command:
- call assert;
-
-/*
- * Load HADDR and HCNT.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov HADDR, SCB_CMDPTR, 5;
- bmov HCNT[1], ALLZEROS, 2;
- if ((p->features & AHC_ULTRA2) == 0) {
- bmov STCNT, HCNT, 3;
- }
- } else {
- mvi DINDEX, HADDR;
- mvi SCB_CMDPTR call bcopy_5;
- clr HCNT[1];
- clr HCNT[2];
- call set_stcnt_from_hcnt;
- }
-
- if ((p->features & AHC_ULTRA2) == 0) {
- mvi (SCSIEN|SDMAEN|HDMAEN|DIRECTION|FIFORESET) call dma;
- } else {
- mvi DFCNTRL, (PRELOADEN|SCSIEN|HDMAEN|DIRECTION);
- test SSTAT0, SDONE jnz .;
-p_command_dma_loop:
- test SSTAT0, SDONE jnz p_command_ultra2_dma_done;
- test SSTAT1,PHASEMIS jz p_command_dma_loop; /* ie. underrun */
-p_command_ultra2_dma_done:
- test SCSISIGI, REQI jz p_command_ultra2_shutdown;
- test SSTAT1, (PHASEMIS|REQINIT) jz p_command_ultra2_dma_done;
-p_command_ultra2_shutdown:
- and DFCNTRL, ~(HDMAEN|SCSIEN);
- test DFCNTRL, (HDMAEN|SCSIEN) jnz .;
- or SXFRCTL0, CLRSTCNT|CLRCHN;
- }
- jmp ITloop;
-
-/*
- * Status phase. Wait for the data byte to appear, then read it
- * and store it into the SCB.
- */
-p_status:
- call assert;
-
- mov SCB_TARGET_STATUS, SCSIDATL;
- jmp ITloop;
-
-/*
- * Message out phase. If MSG_OUT is 0x80, build I full indentify message
- * sequence and send it to the target. In addition, if the MK_MESSAGE bit
- * is set in the SCB_CONTROL byte, interrupt the host and allow it to send
- * it's own message.
- *
- * If MSG_OUT is == HOST_MSG, also interrupt the host and take a message.
- * This is done to allow the host to send messages outside of an identify
- * sequence while protecting the seqencer from testing the MK_MESSAGE bit
- * on an SCB that might not be for the current nexus. (For example, a
- * BDR message in response to a bad reselection would leave us pointed to
- * an SCB that doesn't have anything to do with the current target).
- * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag,
- * bus device reset).
- *
- * When there are no messages to send, MSG_OUT should be set to MSG_NOOP,
- * in case the target decides to put us in this phase for some strange
- * reason.
- */
-p_mesgout_retry:
- or SCSISIGO,ATNO,LASTPHASE;/* turn on ATN for the retry */
-p_mesgout:
- mov SINDEX, MSG_OUT;
- cmp SINDEX, MSG_IDENTIFYFLAG jne p_mesgout_from_host;
-p_mesgout_identify:
- if ((p->features & AHC_WIDE) != 0) {
- and SINDEX,0xf,SCB_TCL; /* lun */
- } else {
- and SINDEX,0x7,SCB_TCL; /* lun */
- }
- and A,DISCENB,SCB_CONTROL; /* mask off disconnect privilege */
- or SINDEX,A; /* or in disconnect privilege */
- or SINDEX,MSG_IDENTIFYFLAG;
-p_mesgout_mk_message:
- test SCB_CONTROL,MK_MESSAGE jz p_mesgout_tag;
- mov SCSIDATL, SINDEX; /* Send the last byte */
- jmp p_mesgout_from_host + 1;/* Skip HOST_MSG test */
-/*
- * Send a tag message if TAG_ENB is set in the SCB control block.
- * Use SCB_TAG (the position in the kernel's SCB array) as the tag value.
- */
-p_mesgout_tag:
- test SCB_CONTROL,TAG_ENB jz p_mesgout_onebyte;
- mov SCSIDATL, SINDEX; /* Send the identify message */
- call phase_lock;
- cmp LASTPHASE, P_MESGOUT jne p_mesgout_done;
- and SCSIDATL,TAG_ENB|SCB_TAG_TYPE,SCB_CONTROL;
- call phase_lock;
- cmp LASTPHASE, P_MESGOUT jne p_mesgout_done;
- mov SCB_TAG jmp p_mesgout_onebyte;
-/*
- * Interrupt the driver, and allow it to send a message
- * if it asks.
- */
-p_mesgout_from_host:
- cmp SINDEX, HOST_MSG jne p_mesgout_onebyte;
- mvi INTSTAT,AWAITING_MSG;
- nop;
- /*
- * Did the host detect a phase change?
- */
- cmp RETURN_1, MSGOUT_PHASEMIS je p_mesgout_done;
-
-p_mesgout_onebyte:
- mvi CLRSINT1, CLRATNO;
- mov SCSIDATL, SINDEX;
-
-/*
- * If the next bus phase after ATN drops is a message out, it means
- * that the target is requesting that the last message(s) be resent.
- */
- call phase_lock;
- cmp LASTPHASE, P_MESGOUT je p_mesgout_retry;
-
-p_mesgout_done:
- mvi CLRSINT1,CLRATNO; /* Be sure to turn ATNO off */
- mov LAST_MSG, MSG_OUT;
- cmp MSG_OUT, MSG_IDENTIFYFLAG jne . + 2;
- and SCB_CONTROL, ~MK_MESSAGE;
- mvi MSG_OUT, MSG_NOOP; /* No message left */
- jmp ITloop;
-
-/*
- * Message in phase. Bytes are read using Automatic PIO mode.
- */
-p_mesgin:
- mvi ACCUM call inb_first; /* read the 1st message byte */
-
- test A,MSG_IDENTIFYFLAG jnz mesgin_identify;
- cmp A,MSG_DISCONNECT je mesgin_disconnect;
- cmp A,MSG_SAVEDATAPOINTER je mesgin_sdptrs;
- cmp ALLZEROS,A je mesgin_complete;
- cmp A,MSG_RESTOREPOINTERS je mesgin_rdptrs;
- cmp A,MSG_EXTENDED je mesgin_extended;
- cmp A,MSG_MESSAGE_REJECT je mesgin_reject;
- cmp A,MSG_NOOP je mesgin_done;
- cmp A,MSG_IGN_WIDE_RESIDUE je mesgin_wide_residue;
-
-rej_mesgin:
-/*
- * We have no idea what this message in is, so we issue a message reject
- * and hope for the best. In any case, rejection should be a rare
- * occurrence - signal the driver when it happens.
- */
- mvi INTSTAT,SEND_REJECT; /* let driver know */
-
- mvi MSG_MESSAGE_REJECT call mk_mesg;
-
-mesgin_done:
- mov NONE,SCSIDATL; /*dummy read from latch to ACK*/
- jmp ITloop;
-
-
-mesgin_complete:
-/*
- * We got a "command complete" message, so put the SCB_TAG into the QOUTFIFO,
- * and trigger a completion interrupt. Before doing so, check to see if there
- * is a residual or the status byte is something other than STATUS_GOOD (0).
- * In either of these conditions, we upload the SCB back to the host so it can
- * process this information. In the case of a non zero status byte, we
- * additionally interrupt the kernel driver synchronously, allowing it to
- * decide if sense should be retrieved. If the kernel driver wishes to request
- * sense, it will fill the kernel SCB with a request sense command and set
- * RETURN_1 to SEND_SENSE. If RETURN_1 is set to SEND_SENSE we redownload
- * the SCB, and process it as the next command by adding it to the waiting list.
- * If the kernel driver does not wish to request sense, it need only clear
- * RETURN_1, and the command is allowed to complete normally. We don't bother
- * to post to the QOUTFIFO in the error cases since it would require extra
- * work in the kernel driver to ensure that the entry was removed before the
- * command complete code tried processing it.
- */
-
-/*
- * First check for residuals
- */
- test SCB_RESID_SGCNT,0xff jnz upload_scb;
- test SCB_TARGET_STATUS,0xff jz complete; /* Good Status? */
-upload_scb:
- mvi DMAPARAMS, FIFORESET;
- mov SCB_TAG call dma_scb;
-check_status:
- test SCB_TARGET_STATUS,0xff jz complete; /* Just a residual? */
- mvi INTSTAT,BAD_STATUS; /* let driver know */
- nop;
- cmp RETURN_1, SEND_SENSE jne complete;
- /* This SCB becomes the next to execute as it will retrieve sense */
- mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
- mov SCB_TAG call dma_scb;
-add_to_waiting_list:
- mov SCB_NEXT,WAITING_SCBH;
- mov WAITING_SCBH, SCBPTR;
- /*
- * Prepare our selection hardware before the busfree so we have a
- * high probability of winning arbitration.
- */
- call start_selection;
- jmp await_busfree;
-
-complete:
- /* If we are untagged, clear our address up in host ram */
- test SCB_CONTROL, TAG_ENB jnz complete_post;
- mov A, SAVED_TCL;
- mvi UNTAGGEDSCB_OFFSET call post_byte_setup;
- mvi SCB_LIST_NULL call post_byte;
-
-complete_post:
- /* Post the SCB and issue an interrupt */
- if ((p->features & AHC_QUEUE_REGS) != 0) {
- mov A, SDSCB_QOFF;
- } else {
- mov A, QOUTPOS;
- }
- mvi QOUTFIFO_OFFSET call post_byte_setup;
- mov SCB_TAG call post_byte;
- if ((p->features & AHC_QUEUE_REGS) == 0) {
- inc QOUTPOS;
- }
- mvi INTSTAT,CMDCMPLT;
-
-add_to_free_list:
- call add_scb_to_free_list;
- jmp await_busfree;
-
-/*
- * Is it an extended message? Copy the message to our message buffer and
- * notify the host. The host will tell us whether to reject this message,
- * respond to it with the message that the host placed in our message buffer,
- * or simply to do nothing.
- */
-mesgin_extended:
- mvi INTSTAT,EXTENDED_MSG; /* let driver know */
- jmp ITloop;
-
-/*
- * Is it a disconnect message? Set a flag in the SCB to remind us
- * and await the bus going free.
- */
-mesgin_disconnect:
- or SCB_CONTROL,DISCONNECTED;
- call add_scb_to_disc_list;
- jmp await_busfree;
-
-/*
- * Save data pointers message:
- * Copying RAM values back to SCB, for Save Data Pointers message, but
- * only if we've actually been into a data phase to change them. This
- * protects against bogus data in scratch ram and the residual counts
- * since they are only initialized when we go into data_in or data_out.
- */
-mesgin_sdptrs:
- test SEQ_FLAGS, DPHASE jz mesgin_done;
- /*
- * The SCB SGPTR becomes the next one we'll download,
- * and the SCB DATAPTR becomes the current SHADDR.
- * Use the residual number since STCNT is corrupted by
- * any message transfer.
- */
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov SCB_SGCOUNT, SG_COUNT, 5;
- bmov SCB_DATAPTR, SHADDR, 4;
- bmov SCB_DATACNT, SCB_RESID_DCNT, 3;
- } else {
- mvi DINDEX, SCB_SGCOUNT;
- mvi SG_COUNT call bcopy_5;
- mvi DINDEX, SCB_DATAPTR;
- mvi SHADDR call bcopy_4;
- mvi SCB_RESID_DCNT call bcopy_3;
- }
- jmp mesgin_done;
-
-/*
- * Restore pointers message? Data pointers are recopied from the
- * SCB anytime we enter a data phase for the first time, so all
- * we need to do is clear the DPHASE flag and let the data phase
- * code do the rest.
- */
-mesgin_rdptrs:
- and SEQ_FLAGS, ~DPHASE; /*
- * We'll reload them
- * the next time through
- * the dataphase.
- */
- jmp mesgin_done;
-
-/*
- * Identify message? For a reconnecting target, this tells us the lun
- * that the reconnection is for - find the correct SCB and switch to it,
- * clearing the "disconnected" bit so we don't "find" it by accident later.
- */
-mesgin_identify:
-
- if ((p->features & AHC_WIDE) != 0) {
- and A,0x0f; /* lun in lower four bits */
- } else {
- and A,0x07; /* lun in lower three bits */
- }
- or SAVED_TCL,A; /* SAVED_TCL should be complete now */
-
- mvi ARG_2, SCB_LIST_NULL; /* SCBID of prev SCB in disc List */
- call get_untagged_SCBID;
- cmp ARG_1, SCB_LIST_NULL je snoop_tag;
- if ((p->flags & AHC_PAGESCBS) != 0) {
- test SEQ_FLAGS, SCBPTR_VALID jz use_retrieveSCB;
- }
- /*
- * If the SCB was found in the disconnected list (as is
- * always the case in non-paging scenarios), SCBPTR is already
- * set to the correct SCB. So, simply setup the SCB and get
- * on with things.
- */
- mov SCBPTR call rem_scb_from_disc_list;
- jmp setup_SCB;
-/*
- * Here we "snoop" the bus looking for a SIMPLE QUEUE TAG message.
- * If we get one, we use the tag returned to find the proper
- * SCB. With SCB paging, this requires using search for both tagged
- * and non-tagged transactions since the SCB may exist in any slot.
- * If we're not using SCB paging, we can use the tag as the direct
- * index to the SCB.
- */
-snoop_tag:
- mov NONE,SCSIDATL; /* ACK Identify MSG */
-snoop_tag_loop:
- call phase_lock;
- cmp LASTPHASE, P_MESGIN jne not_found;
- cmp SCSIBUSL,MSG_SIMPLE_Q_TAG jne not_found;
-get_tag:
- mvi ARG_1 call inb_next; /* tag value */
-
-use_retrieveSCB:
- call retrieveSCB;
-setup_SCB:
- mov A, SAVED_TCL;
- cmp SCB_TCL, A jne not_found_cleanup_scb;
- test SCB_CONTROL,DISCONNECTED jz not_found_cleanup_scb;
- and SCB_CONTROL,~DISCONNECTED;
- or SEQ_FLAGS,IDENTIFY_SEEN; /* make note of IDENTIFY */
- /* See if the host wants to send a message upon reconnection */
- test SCB_CONTROL, MK_MESSAGE jz mesgin_done;
- and SCB_CONTROL, ~MK_MESSAGE;
- mvi HOST_MSG call mk_mesg;
- jmp mesgin_done;
-
-not_found_cleanup_scb:
- test SCB_CONTROL, DISCONNECTED jz . + 3;
- call add_scb_to_disc_list;
- jmp not_found;
- call add_scb_to_free_list;
-not_found:
- mvi INTSTAT, NO_MATCH;
- mvi MSG_BUS_DEV_RESET call mk_mesg;
- jmp mesgin_done;
-
-/*
- * Message reject? Let the kernel driver handle this. If we have an
- * outstanding WDTR or SDTR negotiation, assume that it's a response from
- * the target selecting 8bit or asynchronous transfer, otherwise just ignore
- * it since we have no clue what it pertains to.
- */
-mesgin_reject:
- mvi INTSTAT, REJECT_MSG;
- jmp mesgin_done;
-
-/*
- * Wide Residue. We handle the simple cases, but pass of the one hard case
- * to the kernel (when the residue byte happened to cause us to advance our
- * sg element array, so we know have to back that advance out).
- */
-mesgin_wide_residue:
- mvi ARG_1 call inb_next; /* ACK the wide_residue and get */
- /* the size byte */
-/*
- * In order for this to be reliable, we have to do all sorts of horrible
- * magic in terms of resetting the datafifo and reloading the shadow layer
- * with the correct new values (so that a subsequent save data pointers
- * message will do the right thing). We let the kernel do that work.
- */
- mvi INTSTAT, WIDE_RESIDUE;
- jmp mesgin_done;
-
-/*
- * [ ADD MORE MESSAGE HANDLING HERE ]
- */
-
-/*
- * Locking the driver out, build a one-byte message passed in SINDEX
- * if there is no active message already. SINDEX is returned intact.
- */
-mk_mesg:
- or SCSISIGO,ATNO,LASTPHASE;/* turn on ATNO */
- mov MSG_OUT,SINDEX ret;
-
-/*
- * Functions to read data in Automatic PIO mode.
- *
- * According to Adaptec's documentation, an ACK is not sent on input from
- * the target until SCSIDATL is read from. So we wait until SCSIDATL is
- * latched (the usual way), then read the data byte directly off the bus
- * using SCSIBUSL. When we have pulled the ATN line, or we just want to
- * acknowledge the byte, then we do a dummy read from SCISDATL. The SCSI
- * spec guarantees that the target will hold the data byte on the bus until
- * we send our ACK.
- *
- * The assumption here is that these are called in a particular sequence,
- * and that REQ is already set when inb_first is called. inb_{first,next}
- * use the same calling convention as inb.
- */
-
-inb_next:
- mov NONE,SCSIDATL; /*dummy read from latch to ACK*/
-inb_next_wait:
- /*
- * If there is a parity error, wait for the kernel to
- * see the interrupt and prepare our message response
- * before continuing.
- */
- test SSTAT1, REQINIT jz inb_next_wait;
- test SSTAT1, SCSIPERR jnz .;
- and LASTPHASE, PHASE_MASK, SCSISIGI;
- cmp LASTPHASE, P_MESGIN jne mesgin_phasemis;
-inb_first:
- mov DINDEX,SINDEX;
- mov DINDIR,SCSIBUSL ret; /*read byte directly from bus*/
-inb_last:
- mov NONE,SCSIDATL ret; /*dummy read from latch to ACK*/
-
-
-mesgin_phasemis:
-/*
- * We expected to receive another byte, but the target changed phase
- */
- mvi INTSTAT, MSGIN_PHASEMIS;
- jmp ITloop;
-
-/*
- * DMA data transfer. HADDR and HCNT must be loaded first, and
- * SINDEX should contain the value to load DFCNTRL with - 0x3d for
- * host->scsi, or 0x39 for scsi->host. The SCSI channel is cleared
- * during initialization.
- */
-if ((p->features & AHC_ULTRA2) == 0) {
-dma:
- mov DFCNTRL,SINDEX;
-dma_loop:
- test SSTAT0,DMADONE jnz dma_dmadone;
- test SSTAT1,PHASEMIS jz dma_loop; /* ie. underrun */
-dma_phasemis:
- test SSTAT0,SDONE jnz dma_checkfifo;
- mov SINDEX,ALLZEROS; /* Notify caller of phasemiss */
-
-/*
- * We will be "done" DMAing when the transfer count goes to zero, or
- * the target changes the phase (in light of this, it makes sense that
- * the DMA circuitry doesn't ACK when PHASEMIS is active). If we are
- * doing a SCSI->Host transfer, the data FIFO should be flushed auto-
- * magically on STCNT=0 or a phase change, so just wait for FIFO empty
- * status.
- */
-dma_checkfifo:
- test DFCNTRL,DIRECTION jnz dma_fifoempty;
-dma_fifoflush:
- test DFSTATUS,FIFOEMP jz dma_fifoflush;
-
-dma_fifoempty:
- /* Don't clobber an inprogress host data transfer */
- test DFSTATUS, MREQPEND jnz dma_fifoempty;
-/*
- * Now shut the DMA enables off and make sure that the DMA enables are
- * actually off first lest we get an ILLSADDR.
- */
-dma_dmadone:
- cmp LASTPHASE, P_COMMAND je dma_await_nreq;
- test SCSIRATE, 0x0f jnz dma_shutdown;
-dma_await_nreq:
- test SCSISIGI, REQI jz dma_shutdown;
- test SSTAT1, (PHASEMIS|REQINIT) jz dma_await_nreq;
-dma_shutdown:
- and DFCNTRL, ~(SCSIEN|SDMAEN|HDMAEN);
-dma_halt:
- /*
- * Some revisions of the aic7880 have a problem where, if the
- * data fifo is full, but the PCI input latch is not empty,
- * HDMAEN cannot be cleared. The fix used here is to attempt
- * to drain the data fifo until there is space for the input
- * latch to drain and HDMAEN de-asserts.
- */
- if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) {
- mov NONE, DFDAT;
- }
- test DFCNTRL, (SCSIEN|SDMAEN|HDMAEN) jnz dma_halt;
-}
-return:
- ret;
-
-/*
- * Assert that if we've been reselected, then we've seen an IDENTIFY
- * message.
- */
-assert:
- test SEQ_FLAGS,IDENTIFY_SEEN jnz return; /* seen IDENTIFY? */
-
- mvi INTSTAT,NO_IDENT ret; /* no - tell the kernel */
-
-/*
- * Locate a disconnected SCB either by SAVED_TCL (ARG_1 is SCB_LIST_NULL)
- * or by the SCBID ARG_1. The search begins at the SCB index passed in
- * via SINDEX which is an SCB that must be on the disconnected list. If
- * the SCB cannot be found, SINDEX will be SCB_LIST_NULL, otherwise, SCBPTR
- * is set to the proper SCB.
- */
-findSCB:
- mov SCBPTR,SINDEX; /* Initialize SCBPTR */
- cmp ARG_1, SCB_LIST_NULL jne findSCB_by_SCBID;
- mov A, SAVED_TCL;
- mvi SCB_TCL jmp findSCB_loop; /* &SCB_TCL -> SINDEX */
-findSCB_by_SCBID:
- mov A, ARG_1; /* Tag passed in ARG_1 */
- mvi SCB_TAG jmp findSCB_loop; /* &SCB_TAG -> SINDEX */
-findSCB_next:
- mov ARG_2, SCBPTR;
- cmp SCB_NEXT, SCB_LIST_NULL je notFound;
- mov SCBPTR,SCB_NEXT;
- dec SINDEX; /* Last comparison moved us too far */
-findSCB_loop:
- cmp SINDIR, A jne findSCB_next;
- mov SINDEX, SCBPTR ret;
-notFound:
- mvi SINDEX, SCB_LIST_NULL ret;
-
-/*
- * Retrieve an SCB by SCBID first searching the disconnected list falling
- * back to DMA'ing the SCB down from the host. This routine assumes that
- * ARG_1 is the SCBID of interest and that SINDEX is the position in the
- * disconnected list to start the search from. If SINDEX is SCB_LIST_NULL,
- * we go directly to the host for the SCB.
- */
-retrieveSCB:
- test SEQ_FLAGS, SCBPTR_VALID jz retrieve_from_host;
- mov SCBPTR call findSCB; /* Continue the search */
- cmp SINDEX, SCB_LIST_NULL je retrieve_from_host;
-
-/*
- * This routine expects SINDEX to contain the index of the SCB to be
- * removed, SCBPTR to be pointing to that SCB, and ARG_2 to be the
- * SCBID of the SCB just previous to this one in the list or SCB_LIST_NULL
- * if it is at the head.
- */
-rem_scb_from_disc_list:
-/* Remove this SCB from the disconnection list */
- cmp ARG_2, SCB_LIST_NULL je rHead;
- mov DINDEX, SCB_NEXT;
- mov SCBPTR, ARG_2;
- mov SCB_NEXT, DINDEX;
- mov SCBPTR, SINDEX ret;
-rHead:
- mov DISCONNECTED_SCBH,SCB_NEXT ret;
-
-retrieve_from_host:
-/*
- * We didn't find it. Pull an SCB and DMA down the one we want.
- * We should never get here in the non-paging case.
- */
- mov ALLZEROS call get_free_or_disc_scb;
- mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
- /* Jump instead of call as we want to return anyway */
- mov ARG_1 jmp dma_scb;
-
-/*
- * Determine whether a target is using tagged or non-tagged transactions
- * by first looking for a matching transaction based on the TCL and if
- * that fails, looking up this device in the host's untagged SCB array.
- * The TCL to search for is assumed to be in SAVED_TCL. The value is
- * returned in ARG_1 (SCB_LIST_NULL for tagged, SCBID for non-tagged).
- * The SCBPTR_VALID bit is set in SEQ_FLAGS if we found the information
- * in an SCB instead of having to go to the host.
- */
-get_untagged_SCBID:
- cmp DISCONNECTED_SCBH, SCB_LIST_NULL je get_SCBID_from_host;
- mvi ARG_1, SCB_LIST_NULL;
- mov DISCONNECTED_SCBH call findSCB;
- cmp SINDEX, SCB_LIST_NULL je get_SCBID_from_host;
- or SEQ_FLAGS, SCBPTR_VALID;/* Was in disconnected list */
- test SCB_CONTROL, TAG_ENB jnz . + 2;
- mov ARG_1, SCB_TAG ret;
- mvi ARG_1, SCB_LIST_NULL ret;
-
-/*
- * Fetch a byte from host memory given an index of (A + (256 * SINDEX))
- * and a base address of SCBID_ADDR. The byte is returned in RETURN_2.
- */
-fetch_byte:
- mov ARG_2, SINDEX;
- if ((p->features & AHC_CMD_CHAN) != 0) {
- mvi DINDEX, CCHADDR;
- mvi SCBID_ADDR call set_1byte_addr;
- mvi CCHCNT, 1;
- mvi CCSGCTL, CCSGEN|CCSGRESET;
- test CCSGCTL, CCSGDONE jz .;
- mvi CCSGCTL, CCSGRESET;
- bmov RETURN_2, CCSGRAM, 1 ret;
- } else {
- mvi DINDEX, HADDR;
- mvi SCBID_ADDR call set_1byte_addr;
- mvi HCNT[0], 1;
- clr HCNT[1];
- clr HCNT[2];
- mvi DFCNTRL, HDMAEN|DIRECTION|FIFORESET;
- call dma_finish;
- mov RETURN_2, DFDAT ret;
- }
-
-/*
- * Prepare the hardware to post a byte to host memory given an
- * index of (A + (256 * SINDEX)) and a base address of SCBID_ADDR.
- */
-post_byte_setup:
- mov ARG_2, SINDEX;
- if ((p->features & AHC_CMD_CHAN) != 0) {
- mvi DINDEX, CCHADDR;
- mvi SCBID_ADDR call set_1byte_addr;
- mvi CCHCNT, 1;
- mvi CCSCBCTL, CCSCBRESET ret;
- } else {
- mvi DINDEX, HADDR;
- mvi SCBID_ADDR call set_1byte_addr;
- mvi HCNT[0], 1;
- clr HCNT[1];
- clr HCNT[2];
- mvi DFCNTRL, FIFORESET ret;
- }
-
-post_byte:
- if ((p->features & AHC_CMD_CHAN) != 0) {
- bmov CCSCBRAM, SINDEX, 1;
- or CCSCBCTL, CCSCBEN|CCSCBRESET;
- test CCSCBCTL, CCSCBDONE jz .;
- clr CCSCBCTL ret;
- } else {
- mov DFDAT, SINDEX;
- or DFCNTRL, HDMAEN|FIFOFLUSH;
- jmp dma_finish;
- }
-
-get_SCBID_from_host:
- mov A, SAVED_TCL;
- mvi UNTAGGEDSCB_OFFSET call fetch_byte;
- mov RETURN_1, RETURN_2 ret;
-
-phase_lock:
- test SSTAT1, REQINIT jz phase_lock;
- test SSTAT1, SCSIPERR jnz phase_lock;
- and SCSISIGO, PHASE_MASK, SCSISIGI;
- and LASTPHASE, PHASE_MASK, SCSISIGI ret;
-
-if ((p->features & AHC_CMD_CHAN) == 0) {
-set_stcnt_from_hcnt:
- mov STCNT[0], HCNT[0];
- mov STCNT[1], HCNT[1];
- mov STCNT[2], HCNT[2] ret;
-
-bcopy_7:
- mov DINDIR, SINDIR;
- mov DINDIR, SINDIR;
-bcopy_5:
- mov DINDIR, SINDIR;
-bcopy_4:
- mov DINDIR, SINDIR;
-bcopy_3:
- mov DINDIR, SINDIR;
- mov DINDIR, SINDIR;
- mov DINDIR, SINDIR ret;
-}
-
-/*
- * Setup addr assuming that A is an index into
- * an array of 32byte objects, SINDEX contains
- * the base address of that array, and DINDEX
- * contains the base address of the location
- * to store the indexed address.
- */
-set_32byte_addr:
- shr ARG_2, 3, A;
- shl A, 5;
-/*
- * Setup addr assuming that A + (ARG_1 * 256) is an
- * index into an array of 1byte objects, SINDEX contains
- * the base address of that array, and DINDEX contains
- * the base address of the location to store the computed
- * address.
- */
-set_1byte_addr:
- add DINDIR, A, SINDIR;
- mov A, ARG_2;
- adc DINDIR, A, SINDIR;
- clr A;
- adc DINDIR, A, SINDIR;
- adc DINDIR, A, SINDIR ret;
-
-/*
- * Either post or fetch and SCB from host memory based on the
- * DIRECTION bit in DMAPARAMS. The host SCB index is in SINDEX.
- */
-dma_scb:
- mov A, SINDEX;
- if ((p->features & AHC_CMD_CHAN) != 0) {
- mvi DINDEX, CCHADDR;
- mvi HSCB_ADDR call set_32byte_addr;
- mov CCSCBPTR, SCBPTR;
- mvi CCHCNT, 32;
- test DMAPARAMS, DIRECTION jz dma_scb_tohost;
- mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBDIR|CCSCBRESET;
- cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN|CCSCBDIR jne .;
- jmp dma_scb_finish;
-dma_scb_tohost:
- if ((p->features & AHC_ULTRA2) == 0) {
- mvi CCSCBCTL, CCSCBRESET;
- bmov CCSCBRAM, SCB_CONTROL, 32;
- or CCSCBCTL, CCSCBEN|CCSCBRESET;
- test CCSCBCTL, CCSCBDONE jz .;
- }
- if ((p->features & AHC_ULTRA2) != 0) {
- if ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0) {
- mvi CCSCBCTL, CCARREN|CCSCBRESET;
- cmp CCSCBCTL, ARRDONE|CCARREN jne .;
- mvi CCHCNT, 32;
- mvi CCSCBCTL, CCSCBEN|CCSCBRESET;
- cmp CCSCBCTL, CCSCBDONE|CCSCBEN jne .;
- } else {
- mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBRESET;
- cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN jne .;
- }
- }
-dma_scb_finish:
- clr CCSCBCTL;
- test CCSCBCTL, CCARREN|CCSCBEN jnz .;
- ret;
- }
- if ((p->features & AHC_CMD_CHAN) == 0) {
- mvi DINDEX, HADDR;
- mvi HSCB_ADDR call set_32byte_addr;
- mvi HCNT[0], 32;
- clr HCNT[1];
- clr HCNT[2];
- mov DFCNTRL, DMAPARAMS;
- test DMAPARAMS, DIRECTION jnz dma_scb_fromhost;
- /* Fill it with the SCB data */
-copy_scb_tofifo:
- mvi SINDEX, SCB_CONTROL;
- add A, 32, SINDEX;
-copy_scb_tofifo_loop:
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- mov DFDAT,SINDIR;
- cmp SINDEX, A jne copy_scb_tofifo_loop;
- or DFCNTRL, HDMAEN|FIFOFLUSH;
- jmp dma_finish;
-dma_scb_fromhost:
- mvi DINDEX, SCB_CONTROL;
- if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) {
- /*
- * Set the A to -24. It it hits 0, then we let
- * our code fall through to dfdat_in_8 to complete
- * the last of the copy.
- *
- * Also, things happen 8 bytes at a time in this
- * case, so we may need to drain the fifo at most
- * 3 times to keep things flowing
- */
- mvi A, -24;
-dma_scb_hang_fifo:
- /* Wait for the first bit of data to hit the fifo */
- test DFSTATUS, FIFOEMP jnz .;
-dma_scb_hang_wait:
- /* OK, now they've started to transfer into the fifo,
- * so wait for them to stop trying to transfer any
- * more data.
- */
- test DFSTATUS, MREQPEND jnz .;
- /*
- * OK, they started, then they stopped, now see if they
- * managed to complete the job before stopping. Try
- * it multiple times to give the chip a few cycles to
- * set the flag if it did complete.
- */
- test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
- test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
- test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
- /*
- * Too bad, the chip didn't complete the DMA, but there
- * aren't any more memory requests pending, so that
- * means it stopped part way through and hung. That's
- * our bug, so now we drain what data there is in the
- * fifo in order to get things going again.
- */
-dma_scb_hang_empty_fifo:
- call dfdat_in_8;
- add A, 8;
- add SINDEX, A, HCNT;
- /*
- * If there are another 8 bytes of data waiting in the
- * fifo, then the carry bit will be set as a result
- * of the above add command (unless A is non-negative,
- * in which case the carry bit won't be set).
- */
- jc dma_scb_hang_empty_fifo;
- /*
- * We've emptied the fifo now, but we wouldn't have got
- * here if the memory transfer hadn't stopped part way
- * through, so go back up to the beginning of the
- * loop and start over. When it succeeds in getting
- * all the data down, HDONE will be set and we'll
- * jump to the code just below here.
- */
- jmp dma_scb_hang_fifo;
-dma_scb_hang_dma_done:
- and DFCNTRL, ~HDMAEN;
- test DFCNTRL, HDMAEN jnz .;
- call dfdat_in_8;
- add A, 8;
- cmp A, 8 jne . - 2;
- ret;
- } else {
- call dma_finish;
- call dfdat_in_8;
- call dfdat_in_8;
- call dfdat_in_8;
- }
-dfdat_in_8:
- mov DINDIR,DFDAT;
-dfdat_in_7:
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT;
- mov DINDIR,DFDAT ret;
- }
-
-
-/*
- * Wait for DMA from host memory to data FIFO to complete, then disable
- * DMA and wait for it to acknowledge that it's off.
- */
-if ((p->features & AHC_CMD_CHAN) == 0) {
-dma_finish:
- test DFSTATUS,HDONE jz dma_finish;
- /* Turn off DMA */
- and DFCNTRL, ~HDMAEN;
- test DFCNTRL, HDMAEN jnz .;
- ret;
-}
-
-add_scb_to_free_list:
- if ((p->flags & AHC_PAGESCBS) != 0) {
- mov SCB_NEXT, FREE_SCBH;
- mov FREE_SCBH, SCBPTR;
- }
- mvi SCB_TAG, SCB_LIST_NULL ret;
-
-if ((p->flags & AHC_PAGESCBS) != 0) {
-get_free_or_disc_scb:
- cmp FREE_SCBH, SCB_LIST_NULL jne dequeue_free_scb;
- cmp DISCONNECTED_SCBH, SCB_LIST_NULL jne dequeue_disc_scb;
-return_error:
- mvi SINDEX, SCB_LIST_NULL ret;
-dequeue_disc_scb:
- mov SCBPTR, DISCONNECTED_SCBH;
-dma_up_scb:
- mvi DMAPARAMS, FIFORESET;
- mov SCB_TAG call dma_scb;
-unlink_disc_scb:
- mov DISCONNECTED_SCBH, SCB_NEXT ret;
-dequeue_free_scb:
- mov SCBPTR, FREE_SCBH;
- mov FREE_SCBH, SCB_NEXT ret;
-}
-
-add_scb_to_disc_list:
-/*
- * Link this SCB into the DISCONNECTED list. This list holds the
- * candidates for paging out an SCB if one is needed for a new command.
- * Modifying the disconnected list is a critical(pause dissabled) section.
- */
- mov SCB_NEXT, DISCONNECTED_SCBH;
- mov DISCONNECTED_SCBH, SCBPTR ret;
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c
deleted file mode 100644
index 976f45ccf2cf..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*+M*************************************************************************
- * Adaptec AIC7xxx device driver proc support for Linux.
- *
- * Copyright (c) 1995, 1996 Dean W. Gehnert
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * ----------------------------------------------------------------
- * o Modified from the EATA-DMA /proc support.
- * o Additional support for device block statistics provided by
- * Matthew Jacob.
- * o Correction of overflow by Heinz Mauelshagen
- * o Adittional corrections by Doug Ledford
- *
- * Dean W. Gehnert, deang@teleport.com, 05/01/96
- *
- * $Id: aic7xxx_proc.c,v 4.1 1997/06/97 08:23:42 deang Exp $
- *-M*************************************************************************/
-
-
-#define HDRB \
-" 0 - 4K 4 - 16K 16 - 64K 64 - 256K 256K - 1M 1M+"
-
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_show_info
- *
- * Description:
- * Return information to handle /proc support for the driver.
- *-F*************************************************************************/
-int
-aic7xxx_show_info(struct seq_file *m, struct Scsi_Host *HBAptr)
-{
- struct aic7xxx_host *p;
- struct aic_dev_data *aic_dev;
- struct scsi_device *sdptr;
- unsigned char i;
- unsigned char tindex;
-
- for(p=first_aic7xxx; p && p->host != HBAptr; p=p->next)
- ;
-
- if (!p)
- {
- seq_printf(m, "Can't find adapter for host number %d\n", HBAptr->host_no);
- return 0;
- }
-
- p = (struct aic7xxx_host *) HBAptr->hostdata;
-
- seq_printf(m, "Adaptec AIC7xxx driver version: ");
- seq_printf(m, "%s/", AIC7XXX_C_VERSION);
- seq_printf(m, "%s", AIC7XXX_H_VERSION);
- seq_printf(m, "\n");
- seq_printf(m, "Adapter Configuration:\n");
- seq_printf(m, " SCSI Adapter: %s\n",
- board_names[p->board_name_index]);
- if (p->flags & AHC_TWIN)
- seq_printf(m, " Twin Channel Controller ");
- else
- {
- char *channel = "";
- char *ultra = "";
- char *wide = "Narrow ";
- if (p->flags & AHC_MULTI_CHANNEL)
- {
- channel = " Channel A";
- if (p->flags & (AHC_CHNLB|AHC_CHNLC))
- channel = (p->flags & AHC_CHNLB) ? " Channel B" : " Channel C";
- }
- if (p->features & AHC_WIDE)
- wide = "Wide ";
- if (p->features & AHC_ULTRA3)
- {
- switch(p->chip & AHC_CHIPID_MASK)
- {
- case AHC_AIC7892:
- case AHC_AIC7899:
- ultra = "Ultra-160/m LVD/SE ";
- break;
- default:
- ultra = "Ultra-3 LVD/SE ";
- break;
- }
- }
- else if (p->features & AHC_ULTRA2)
- ultra = "Ultra-2 LVD/SE ";
- else if (p->features & AHC_ULTRA)
- ultra = "Ultra ";
- seq_printf(m, " %s%sController%s ",
- ultra, wide, channel);
- }
- switch(p->chip & ~AHC_CHIPID_MASK)
- {
- case AHC_VL:
- seq_printf(m, "at VLB slot %d\n", p->pci_device_fn);
- break;
- case AHC_EISA:
- seq_printf(m, "at EISA slot %d\n", p->pci_device_fn);
- break;
- default:
- seq_printf(m, "at PCI %d/%d/%d\n", p->pci_bus,
- PCI_SLOT(p->pci_device_fn), PCI_FUNC(p->pci_device_fn));
- break;
- }
- if( !(p->maddr) )
- {
- seq_printf(m, " Programmed I/O Base: %lx\n", p->base);
- }
- else
- {
- seq_printf(m, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase);
- }
- if( (p->chip & (AHC_VL | AHC_EISA)) )
- {
- seq_printf(m, " BIOS Memory Address: 0x%08x\n", p->bios_address);
- }
- seq_printf(m, " Adapter SEEPROM Config: %s\n",
- (p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." :
- ((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." :
- "SEEPROM not found, using leftover BIOS values.") );
- seq_printf(m, " Adaptec SCSI BIOS: %s\n",
- (p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled");
- seq_printf(m, " IRQ: %d\n", HBAptr->irq);
- seq_printf(m, " SCBs: Active %d, Max Active %d,\n",
- p->activescbs, p->max_activescbs);
- seq_printf(m, " Allocated %d, HW %d, "
- "Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs,
- p->scb_data->maxscbs);
- if (p->flags & AHC_EXTERNAL_SRAM)
- seq_printf(m, " Using External SCB SRAM\n");
- seq_printf(m, " Interrupts: %ld", p->isr_count);
- if (p->chip & AHC_EISA)
- {
- seq_printf(m, " %s\n",
- (p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)");
- }
- else
- {
- seq_printf(m, "\n");
- }
- seq_printf(m, " BIOS Control Word: 0x%04x\n",
- p->bios_control);
- seq_printf(m, " Adapter Control Word: 0x%04x\n",
- p->adapter_control);
- seq_printf(m, " Extended Translation: %sabled\n",
- (p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis");
- seq_printf(m, "Disconnect Enable Flags: 0x%04x\n", p->discenable);
- if (p->features & (AHC_ULTRA | AHC_ULTRA2))
- {
- seq_printf(m, " Ultra Enable Flags: 0x%04x\n", p->ultraenb);
- }
- seq_printf(m, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth);
- seq_printf(m, " Tagged Queue By Device array for aic7xxx host "
- "instance %d:\n", p->instance);
- seq_printf(m, " {");
- for(i=0; i < (MAX_TARGETS - 1); i++)
- seq_printf(m, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]);
- seq_printf(m, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]);
-
- seq_printf(m, "\n");
- seq_printf(m, "Statistics:\n\n");
- list_for_each_entry(aic_dev, &p->aic_devs, list)
- {
- sdptr = aic_dev->SDptr;
- tindex = sdptr->channel << 3 | sdptr->id;
- seq_printf(m, "(scsi%d:%d:%d:%d)\n",
- p->host_no, sdptr->channel, sdptr->id, sdptr->lun);
- seq_printf(m, " Device using %s/%s",
- (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ?
- "Wide" : "Narrow",
- (aic_dev->cur.offset != 0) ?
- "Sync transfers at " : "Async transfers.\n" );
- if (aic_dev->cur.offset != 0)
- {
- struct aic7xxx_syncrate *sync_rate;
- unsigned char options = aic_dev->cur.options;
- int period = aic_dev->cur.period;
- int rate = (aic_dev->cur.width ==
- MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0;
-
- sync_rate = aic7xxx_find_syncrate(p, &period, 0, &options);
- if (sync_rate != NULL)
- {
- seq_printf(m, "%s MByte/sec, offset %d\n",
- sync_rate->rate[rate],
- aic_dev->cur.offset );
- }
- else
- {
- seq_printf(m, "3.3 MByte/sec, offset %d\n",
- aic_dev->cur.offset );
- }
- }
- seq_printf(m, " Transinfo settings: ");
- seq_printf(m, "current(%d/%d/%d/%d), ",
- aic_dev->cur.period,
- aic_dev->cur.offset,
- aic_dev->cur.width,
- aic_dev->cur.options);
- seq_printf(m, "goal(%d/%d/%d/%d), ",
- aic_dev->goal.period,
- aic_dev->goal.offset,
- aic_dev->goal.width,
- aic_dev->goal.options);
- seq_printf(m, "user(%d/%d/%d/%d)\n",
- p->user[tindex].period,
- p->user[tindex].offset,
- p->user[tindex].width,
- p->user[tindex].options);
- if(sdptr->simple_tags)
- {
- seq_printf(m, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth);
- }
- if(aic_dev->barrier_total)
- seq_printf(m, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n",
- aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total,
- aic_dev->barrier_total, aic_dev->ordered_total);
- else
- seq_printf(m, " Total transfers %ld:\n (%ld/%ld reads/writes)\n",
- aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total);
- seq_printf(m, "%s\n", HDRB);
- seq_printf(m, " Reads:");
- for (i = 0; i < ARRAY_SIZE(aic_dev->r_bins); i++)
- {
- seq_printf(m, " %10ld", aic_dev->r_bins[i]);
- }
- seq_printf(m, "\n");
- seq_printf(m, " Writes:");
- for (i = 0; i < ARRAY_SIZE(aic_dev->w_bins); i++)
- {
- seq_printf(m, " %10ld", aic_dev->w_bins[i]);
- }
- seq_printf(m, "\n");
- seq_printf(m, "\n\n");
- }
- return 0;
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 2
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -2
- * c-argdecl-indent: 2
- * c-label-offset: -2
- * c-continued-statement-offset: 2
- * c-continued-brace-offset: 0
- * indent-tabs-mode: nil
- * tab-width: 8
- * End:
- */
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h b/drivers/scsi/aic7xxx_old/aic7xxx_reg.h
deleted file mode 100644
index 27f2334abc71..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h
+++ /dev/null
@@ -1,629 +0,0 @@
-/*
- * DO NOT EDIT - This file is automatically generated.
- */
-
-#define SCSISEQ 0x00
-#define TEMODE 0x80
-#define ENSELO 0x40
-#define ENSELI 0x20
-#define ENRSELI 0x10
-#define ENAUTOATNO 0x08
-#define ENAUTOATNI 0x04
-#define ENAUTOATNP 0x02
-#define SCSIRSTO 0x01
-
-#define SXFRCTL0 0x01
-#define DFON 0x80
-#define DFPEXP 0x40
-#define FAST20 0x20
-#define CLRSTCNT 0x10
-#define SPIOEN 0x08
-#define SCAMEN 0x04
-#define CLRCHN 0x02
-
-#define SXFRCTL1 0x02
-#define BITBUCKET 0x80
-#define SWRAPEN 0x40
-#define ENSPCHK 0x20
-#define STIMESEL 0x18
-#define ENSTIMER 0x04
-#define ACTNEGEN 0x02
-#define STPWEN 0x01
-
-#define SCSISIGO 0x03
-#define CDO 0x80
-#define IOO 0x40
-#define MSGO 0x20
-#define ATNO 0x10
-#define SELO 0x08
-#define BSYO 0x04
-#define REQO 0x02
-#define ACKO 0x01
-
-#define SCSISIGI 0x03
-#define ATNI 0x10
-#define SELI 0x08
-#define BSYI 0x04
-#define REQI 0x02
-#define ACKI 0x01
-
-#define SCSIRATE 0x04
-#define WIDEXFER 0x80
-#define SXFR_ULTRA2 0x7f
-#define SXFR 0x70
-#define SOFS 0x0f
-
-#define SCSIID 0x05
-#define SCSIOFFSET 0x05
-#define SOFS_ULTRA2 0x7f
-
-#define SCSIDATL 0x06
-
-#define SCSIDATH 0x07
-
-#define STCNT 0x08
-
-#define OPTIONMODE 0x08
-#define AUTORATEEN 0x80
-#define AUTOACKEN 0x40
-#define ATNMGMNTEN 0x20
-#define BUSFREEREV 0x10
-#define EXPPHASEDIS 0x08
-#define SCSIDATL_IMGEN 0x04
-#define AUTO_MSGOUT_DE 0x02
-#define DIS_MSGIN_DUALEDGE 0x01
-
-#define CLRSINT0 0x0b
-#define CLRSELDO 0x40
-#define CLRSELDI 0x20
-#define CLRSELINGO 0x10
-#define CLRSWRAP 0x08
-#define CLRSPIORDY 0x02
-
-#define SSTAT0 0x0b
-#define TARGET 0x80
-#define SELDO 0x40
-#define SELDI 0x20
-#define SELINGO 0x10
-#define IOERR 0x08
-#define SWRAP 0x08
-#define SDONE 0x04
-#define SPIORDY 0x02
-#define DMADONE 0x01
-
-#define CLRSINT1 0x0c
-#define CLRSELTIMEO 0x80
-#define CLRATNO 0x40
-#define CLRSCSIRSTI 0x20
-#define CLRBUSFREE 0x08
-#define CLRSCSIPERR 0x04
-#define CLRPHASECHG 0x02
-#define CLRREQINIT 0x01
-
-#define SSTAT1 0x0c
-#define SELTO 0x80
-#define ATNTARG 0x40
-#define SCSIRSTI 0x20
-#define PHASEMIS 0x10
-#define BUSFREE 0x08
-#define SCSIPERR 0x04
-#define PHASECHG 0x02
-#define REQINIT 0x01
-
-#define SSTAT2 0x0d
-#define OVERRUN 0x80
-#define SHVALID 0x40
-#define WIDE_RES 0x20
-#define SFCNT 0x1f
-#define EXP_ACTIVE 0x10
-#define CRCVALERR 0x08
-#define CRCENDERR 0x04
-#define CRCREQERR 0x02
-#define DUAL_EDGE_ERROR 0x01
-
-#define SSTAT3 0x0e
-#define SCSICNT 0xf0
-#define OFFCNT 0x0f
-
-#define SCSIID_ULTRA2 0x0f
-#define OID 0x0f
-
-#define SIMODE0 0x10
-#define ENSELDO 0x40
-#define ENSELDI 0x20
-#define ENSELINGO 0x10
-#define ENIOERR 0x08
-#define ENSWRAP 0x08
-#define ENSDONE 0x04
-#define ENSPIORDY 0x02
-#define ENDMADONE 0x01
-
-#define SIMODE1 0x11
-#define ENSELTIMO 0x80
-#define ENATNTARG 0x40
-#define ENSCSIRST 0x20
-#define ENPHASEMIS 0x10
-#define ENBUSFREE 0x08
-#define ENSCSIPERR 0x04
-#define ENPHASECHG 0x02
-#define ENREQINIT 0x01
-
-#define SCSIBUSL 0x12
-
-#define SCSIBUSH 0x13
-
-#define SHADDR 0x14
-
-#define SELTIMER 0x18
-#define STAGE6 0x20
-#define STAGE5 0x10
-#define STAGE4 0x08
-#define STAGE3 0x04
-#define STAGE2 0x02
-#define STAGE1 0x01
-
-#define SELID 0x19
-#define SELID_MASK 0xf0
-#define ONEBIT 0x08
-
-#define SPIOCAP 0x1b
-#define SOFT1 0x80
-#define SOFT0 0x40
-#define SOFTCMDEN 0x20
-#define HAS_BRDCTL 0x10
-#define SEEPROM 0x08
-#define EEPROM 0x04
-#define ROM 0x02
-#define SSPIOCPS 0x01
-
-#define BRDCTL 0x1d
-#define BRDDAT7 0x80
-#define BRDDAT6 0x40
-#define BRDDAT5 0x20
-#define BRDDAT4 0x10
-#define BRDSTB 0x10
-#define BRDCS 0x08
-#define BRDDAT3 0x08
-#define BRDDAT2 0x04
-#define BRDRW 0x04
-#define BRDRW_ULTRA2 0x02
-#define BRDCTL1 0x02
-#define BRDSTB_ULTRA2 0x01
-#define BRDCTL0 0x01
-
-#define SEECTL 0x1e
-#define EXTARBACK 0x80
-#define EXTARBREQ 0x40
-#define SEEMS 0x20
-#define SEERDY 0x10
-#define SEECS 0x08
-#define SEECK 0x04
-#define SEEDO 0x02
-#define SEEDI 0x01
-
-#define SBLKCTL 0x1f
-#define DIAGLEDEN 0x80
-#define DIAGLEDON 0x40
-#define AUTOFLUSHDIS 0x20
-#define ENAB40 0x08
-#define ENAB20 0x04
-#define SELWIDE 0x02
-#define XCVR 0x01
-
-#define SRAM_BASE 0x20
-
-#define TARG_SCSIRATE 0x20
-
-#define ULTRA_ENB 0x30
-
-#define DISC_DSB 0x32
-
-#define MSG_OUT 0x34
-
-#define DMAPARAMS 0x35
-#define PRELOADEN 0x80
-#define WIDEODD 0x40
-#define SCSIEN 0x20
-#define SDMAENACK 0x10
-#define SDMAEN 0x10
-#define HDMAEN 0x08
-#define HDMAENACK 0x08
-#define DIRECTION 0x04
-#define FIFOFLUSH 0x02
-#define FIFORESET 0x01
-
-#define SEQ_FLAGS 0x36
-#define IDENTIFY_SEEN 0x80
-#define SCBPTR_VALID 0x20
-#define DPHASE 0x10
-#define AMTARGET 0x08
-#define WIDE_BUS 0x02
-#define TWIN_BUS 0x01
-
-#define SAVED_TCL 0x37
-
-#define SG_COUNT 0x38
-
-#define SG_NEXT 0x39
-
-#define LASTPHASE 0x3d
-#define P_MESGIN 0xe0
-#define PHASE_MASK 0xe0
-#define P_STATUS 0xc0
-#define P_MESGOUT 0xa0
-#define P_COMMAND 0x80
-#define CDI 0x80
-#define IOI 0x40
-#define P_DATAIN 0x40
-#define MSGI 0x20
-#define P_BUSFREE 0x01
-#define P_DATAOUT 0x00
-
-#define WAITING_SCBH 0x3e
-
-#define DISCONNECTED_SCBH 0x3f
-
-#define FREE_SCBH 0x40
-
-#define HSCB_ADDR 0x41
-
-#define SCBID_ADDR 0x45
-
-#define TMODE_CMDADDR 0x49
-
-#define KERNEL_QINPOS 0x4d
-
-#define QINPOS 0x4e
-
-#define QOUTPOS 0x4f
-
-#define TMODE_CMDADDR_NEXT 0x50
-
-#define ARG_1 0x51
-#define RETURN_1 0x51
-#define SEND_MSG 0x80
-#define SEND_SENSE 0x40
-#define SEND_REJ 0x20
-#define MSGOUT_PHASEMIS 0x10
-
-#define ARG_2 0x52
-#define RETURN_2 0x52
-
-#define LAST_MSG 0x53
-
-#define PREFETCH_CNT 0x54
-
-#define SCSICONF 0x5a
-#define TERM_ENB 0x80
-#define RESET_SCSI 0x40
-#define HWSCSIID 0x0f
-#define HSCSIID 0x07
-
-#define HOSTCONF 0x5d
-
-#define HA_274_BIOSCTRL 0x5f
-#define BIOSMODE 0x30
-#define BIOSDISABLED 0x30
-#define CHANNEL_B_PRIMARY 0x08
-
-#define SEQCTL 0x60
-#define PERRORDIS 0x80
-#define PAUSEDIS 0x40
-#define FAILDIS 0x20
-#define FASTMODE 0x10
-#define BRKADRINTEN 0x08
-#define STEP 0x04
-#define SEQRESET 0x02
-#define LOADRAM 0x01
-
-#define SEQRAM 0x61
-
-#define SEQADDR0 0x62
-
-#define SEQADDR1 0x63
-#define SEQADDR1_MASK 0x01
-
-#define ACCUM 0x64
-
-#define SINDEX 0x65
-
-#define DINDEX 0x66
-
-#define ALLONES 0x69
-
-#define ALLZEROS 0x6a
-
-#define NONE 0x6a
-
-#define FLAGS 0x6b
-#define ZERO 0x02
-#define CARRY 0x01
-
-#define SINDIR 0x6c
-
-#define DINDIR 0x6d
-
-#define FUNCTION1 0x6e
-
-#define STACK 0x6f
-
-#define TARG_OFFSET 0x70
-
-#define BCTL 0x84
-#define ACE 0x08
-#define ENABLE 0x01
-
-#define DSCOMMAND0 0x84
-#define INTSCBRAMSEL 0x08
-#define RAMPS 0x04
-#define USCBSIZE32 0x02
-#define CIOPARCKEN 0x01
-
-#define DSCOMMAND 0x84
-#define CACHETHEN 0x80
-#define DPARCKEN 0x40
-#define MPARCKEN 0x20
-#define EXTREQLCK 0x10
-
-#define BUSTIME 0x85
-#define BOFF 0xf0
-#define BON 0x0f
-
-#define BUSSPD 0x86
-#define DFTHRSH 0xc0
-#define STBOFF 0x38
-#define STBON 0x07
-
-#define DSPCISTATUS 0x86
-#define DFTHRSH_100 0xc0
-
-#define HCNTRL 0x87
-#define POWRDN 0x40
-#define SWINT 0x10
-#define IRQMS 0x08
-#define PAUSE 0x04
-#define INTEN 0x02
-#define CHIPRST 0x01
-#define CHIPRSTACK 0x01
-
-#define HADDR 0x88
-
-#define HCNT 0x8c
-
-#define SCBPTR 0x90
-
-#define INTSTAT 0x91
-#define SEQINT_MASK 0xf1
-#define DATA_OVERRUN 0xe1
-#define MSGIN_PHASEMIS 0xd1
-#define TRACEPOINT2 0xc1
-#define SEQ_SG_FIXUP 0xb1
-#define AWAITING_MSG 0xa1
-#define RESIDUAL 0x81
-#define BAD_STATUS 0x71
-#define REJECT_MSG 0x61
-#define WIDE_RESIDUE 0x51
-#define EXTENDED_MSG 0x41
-#define NO_MATCH 0x31
-#define NO_IDENT 0x21
-#define SEND_REJECT 0x11
-#define INT_PEND 0x0f
-#define BRKADRINT 0x08
-#define SCSIINT 0x04
-#define CMDCMPLT 0x02
-#define BAD_PHASE 0x01
-#define SEQINT 0x01
-
-#define CLRINT 0x92
-#define CLRPARERR 0x10
-#define CLRBRKADRINT 0x08
-#define CLRSCSIINT 0x04
-#define CLRCMDINT 0x02
-#define CLRSEQINT 0x01
-
-#define ERROR 0x92
-#define CIOPARERR 0x80
-#define PCIERRSTAT 0x40
-#define MPARERR 0x20
-#define DPARERR 0x10
-#define SQPARERR 0x08
-#define ILLOPCODE 0x04
-#define DSCTMOUT 0x02
-#define ILLSADDR 0x02
-#define ILLHADDR 0x01
-
-#define DFCNTRL 0x93
-
-#define DFSTATUS 0x94
-#define PRELOAD_AVAIL 0x80
-#define DWORDEMP 0x20
-#define MREQPEND 0x10
-#define HDONE 0x08
-#define DFTHRESH 0x04
-#define FIFOFULL 0x02
-#define FIFOEMP 0x01
-
-#define DFDAT 0x99
-
-#define SCBCNT 0x9a
-#define SCBAUTO 0x80
-#define SCBCNT_MASK 0x1f
-
-#define QINFIFO 0x9b
-
-#define QINCNT 0x9c
-
-#define SCSIDATL_IMG 0x9c
-
-#define QOUTFIFO 0x9d
-
-#define CRCCONTROL1 0x9d
-#define CRCONSEEN 0x80
-#define CRCVALCHKEN 0x40
-#define CRCENDCHKEN 0x20
-#define CRCREQCHKEN 0x10
-#define TARGCRCENDEN 0x08
-#define TARGCRCCNTEN 0x04
-
-#define SCSIPHASE 0x9e
-#define SP_STATUS 0x20
-#define SP_COMMAND 0x10
-#define SP_MSG_IN 0x08
-#define SP_MSG_OUT 0x04
-#define SP_DATA_IN 0x02
-#define SP_DATA_OUT 0x01
-
-#define QOUTCNT 0x9e
-
-#define SFUNCT 0x9f
-#define ALT_MODE 0x80
-
-#define SCB_CONTROL 0xa0
-#define MK_MESSAGE 0x80
-#define DISCENB 0x40
-#define TAG_ENB 0x20
-#define DISCONNECTED 0x04
-#define SCB_TAG_TYPE 0x03
-
-#define SCB_BASE 0xa0
-
-#define SCB_TCL 0xa1
-#define TID 0xf0
-#define SELBUSB 0x08
-#define LID 0x07
-
-#define SCB_TARGET_STATUS 0xa2
-
-#define SCB_SGCOUNT 0xa3
-
-#define SCB_SGPTR 0xa4
-
-#define SCB_RESID_SGCNT 0xa8
-
-#define SCB_RESID_DCNT 0xa9
-
-#define SCB_DATAPTR 0xac
-
-#define SCB_DATACNT 0xb0
-
-#define SCB_CMDPTR 0xb4
-
-#define SCB_CMDLEN 0xb8
-
-#define SCB_TAG 0xb9
-
-#define SCB_NEXT 0xba
-
-#define SCB_PREV 0xbb
-
-#define SCB_BUSYTARGETS 0xbc
-
-#define SEECTL_2840 0xc0
-#define CS_2840 0x04
-#define CK_2840 0x02
-#define DO_2840 0x01
-
-#define STATUS_2840 0xc1
-#define EEPROM_TF 0x80
-#define BIOS_SEL 0x60
-#define ADSEL 0x1e
-#define DI_2840 0x01
-
-#define CCHADDR 0xe0
-
-#define CCHCNT 0xe8
-
-#define CCSGRAM 0xe9
-
-#define CCSGADDR 0xea
-
-#define CCSGCTL 0xeb
-#define CCSGDONE 0x80
-#define CCSGEN 0x08
-#define FLAG 0x02
-#define CCSGRESET 0x01
-
-#define CCSCBRAM 0xec
-
-#define CCSCBADDR 0xed
-
-#define CCSCBCTL 0xee
-#define CCSCBDONE 0x80
-#define ARRDONE 0x40
-#define CCARREN 0x10
-#define CCSCBEN 0x08
-#define CCSCBDIR 0x04
-#define CCSCBRESET 0x01
-
-#define CCSCBCNT 0xef
-
-#define CCSCBPTR 0xf1
-
-#define HNSCB_QOFF 0xf4
-
-#define HESCB_QOFF 0xf5
-
-#define SNSCB_QOFF 0xf6
-
-#define SESCB_QOFF 0xf7
-
-#define SDSCB_QOFF 0xf8
-
-#define QOFF_CTLSTA 0xfa
-#define ESTABLISH_SCB_AVAIL 0x80
-#define SCB_AVAIL 0x40
-#define SNSCB_ROLLOVER 0x20
-#define SDSCB_ROLLOVER 0x10
-#define SESCB_ROLLOVER 0x08
-#define SCB_QSIZE 0x07
-#define SCB_QSIZE_256 0x06
-
-#define DFF_THRSH 0xfb
-#define WR_DFTHRSH 0x70
-#define WR_DFTHRSH_MAX 0x70
-#define WR_DFTHRSH_90 0x60
-#define WR_DFTHRSH_85 0x50
-#define WR_DFTHRSH_75 0x40
-#define WR_DFTHRSH_63 0x30
-#define WR_DFTHRSH_50 0x20
-#define WR_DFTHRSH_25 0x10
-#define RD_DFTHRSH_MAX 0x07
-#define RD_DFTHRSH 0x07
-#define RD_DFTHRSH_90 0x06
-#define RD_DFTHRSH_85 0x05
-#define RD_DFTHRSH_75 0x04
-#define RD_DFTHRSH_63 0x03
-#define RD_DFTHRSH_50 0x02
-#define RD_DFTHRSH_25 0x01
-#define WR_DFTHRSH_MIN 0x00
-#define RD_DFTHRSH_MIN 0x00
-
-#define SG_CACHEPTR 0xfc
-#define SG_USER_DATA 0xfc
-#define LAST_SEG 0x02
-#define LAST_SEG_DONE 0x01
-
-
-#define CMD_GROUP2_BYTE_DELTA 0xfa
-#define MAX_OFFSET_8BIT 0x0f
-#define BUS_16_BIT 0x01
-#define QINFIFO_OFFSET 0x02
-#define CMD_GROUP5_BYTE_DELTA 0x0b
-#define CMD_GROUP_CODE_SHIFT 0x05
-#define MAX_OFFSET_ULTRA2 0x7f
-#define MAX_OFFSET_16BIT 0x08
-#define BUS_8_BIT 0x00
-#define QOUTFIFO_OFFSET 0x01
-#define UNTAGGEDSCB_OFFSET 0x00
-#define CCSGRAM_MAXSEGS 0x10
-#define SCB_LIST_NULL 0xff
-#define SG_SIZEOF 0x08
-#define CMD_GROUP4_BYTE_DELTA 0x04
-#define CMD_GROUP0_BYTE_DELTA 0xfc
-#define HOST_MSG 0xff
-#define BUS_32_BIT 0x02
-#define CCSGADDR_MAX 0x80
-
-
-/* Downloaded Constant Definitions */
-#define TMODE_NUMCMDS 0x00
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c b/drivers/scsi/aic7xxx_old/aic7xxx_seq.c
deleted file mode 100644
index e1bc140e9735..000000000000
--- a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/*
- * DO NOT EDIT - This file is automatically generated.
- */
-static unsigned char seqprog[] = {
- 0xff, 0x6a, 0x06, 0x08,
- 0x7f, 0x02, 0x04, 0x08,
- 0x12, 0x6a, 0x00, 0x00,
- 0xff, 0x6a, 0xd6, 0x09,
- 0xff, 0x6a, 0xdc, 0x09,
- 0x00, 0x65, 0xca, 0x58,
- 0xf7, 0x01, 0x02, 0x08,
- 0xff, 0x4e, 0xc8, 0x08,
- 0xbf, 0x60, 0xc0, 0x08,
- 0x60, 0x0b, 0x86, 0x68,
- 0x40, 0x00, 0x0c, 0x68,
- 0x08, 0x1f, 0x3e, 0x10,
- 0x60, 0x0b, 0x86, 0x68,
- 0x40, 0x00, 0x0c, 0x68,
- 0x08, 0x1f, 0x3e, 0x10,
- 0xff, 0x3e, 0x48, 0x60,
- 0x40, 0xfa, 0x10, 0x78,
- 0xff, 0xf6, 0xd4, 0x08,
- 0x01, 0x4e, 0x9c, 0x18,
- 0x40, 0x60, 0xc0, 0x00,
- 0x00, 0x4d, 0x10, 0x70,
- 0x01, 0x4e, 0x9c, 0x18,
- 0xbf, 0x60, 0xc0, 0x08,
- 0x00, 0x6a, 0x86, 0x5c,
- 0xff, 0x4e, 0xc8, 0x18,
- 0x02, 0x6a, 0x70, 0x5b,
- 0xff, 0x52, 0x20, 0x09,
- 0x0d, 0x6a, 0x6a, 0x00,
- 0x00, 0x52, 0xe6, 0x5b,
- 0x03, 0xb0, 0x52, 0x31,
- 0xff, 0xb0, 0x52, 0x09,
- 0xff, 0xb1, 0x54, 0x09,
- 0xff, 0xb2, 0x56, 0x09,
- 0xff, 0xa3, 0x50, 0x09,
- 0xff, 0x3e, 0x74, 0x09,
- 0xff, 0x90, 0x7c, 0x08,
- 0xff, 0x3e, 0x20, 0x09,
- 0x00, 0x65, 0x4e, 0x58,
- 0x00, 0x65, 0x0c, 0x40,
- 0xf7, 0x1f, 0xca, 0x08,
- 0x08, 0xa1, 0xc8, 0x08,
- 0x00, 0x65, 0xca, 0x00,
- 0xff, 0x65, 0x3e, 0x08,
- 0xf0, 0xa1, 0xc8, 0x08,
- 0x0f, 0x0f, 0x1e, 0x08,
- 0x00, 0x0f, 0x1e, 0x00,
- 0xf0, 0xa1, 0xc8, 0x08,
- 0x0f, 0x05, 0x0a, 0x08,
- 0x00, 0x05, 0x0a, 0x00,
- 0xff, 0x6a, 0x0c, 0x08,
- 0x5a, 0x6a, 0x00, 0x04,
- 0x12, 0x65, 0x02, 0x00,
- 0x31, 0x6a, 0xca, 0x00,
- 0x80, 0x37, 0x6e, 0x68,
- 0xff, 0x65, 0xca, 0x18,
- 0xff, 0x37, 0xdc, 0x08,
- 0xff, 0x6e, 0xc8, 0x08,
- 0x00, 0x6c, 0x76, 0x78,
- 0x20, 0x01, 0x02, 0x00,
- 0x4c, 0x37, 0xc8, 0x28,
- 0x08, 0x1f, 0x7e, 0x78,
- 0x08, 0x37, 0x6e, 0x00,
- 0x08, 0x64, 0xc8, 0x00,
- 0x70, 0x64, 0xca, 0x18,
- 0xff, 0x6c, 0x0a, 0x08,
- 0x20, 0x64, 0xca, 0x18,
- 0xff, 0x6c, 0x08, 0x0c,
- 0x40, 0x0b, 0x96, 0x68,
- 0x20, 0x6a, 0x16, 0x00,
- 0xf0, 0x19, 0x6e, 0x08,
- 0x08, 0x6a, 0x18, 0x00,
- 0x08, 0x11, 0x22, 0x00,
- 0x08, 0x6a, 0x66, 0x58,
- 0x08, 0x6a, 0x68, 0x00,
- 0x00, 0x65, 0xaa, 0x40,
- 0x12, 0x6a, 0x00, 0x00,
- 0x40, 0x6a, 0x16, 0x00,
- 0xff, 0x3e, 0x20, 0x09,
- 0xff, 0xba, 0x7c, 0x08,
- 0xff, 0xa1, 0x6e, 0x08,
- 0x08, 0x6a, 0x18, 0x00,
- 0x08, 0x11, 0x22, 0x00,
- 0x08, 0x6a, 0x66, 0x58,
- 0x80, 0x6a, 0x68, 0x00,
- 0x80, 0x36, 0x6c, 0x00,
- 0x00, 0x65, 0xba, 0x5b,
- 0xff, 0x3d, 0xc8, 0x08,
- 0xbf, 0x64, 0xe2, 0x78,
- 0x80, 0x64, 0xc8, 0x71,
- 0xa0, 0x64, 0xf8, 0x71,
- 0xc0, 0x64, 0xf0, 0x71,
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- 0x20, 0xa0, 0xd8, 0x31,
- 0x09, 0xee, 0xdc, 0x01,
- 0x80, 0xee, 0xfe, 0x7b,
- 0x11, 0x6a, 0xdc, 0x01,
- 0x50, 0xee, 0x02, 0x64,
- 0x20, 0x6a, 0xd0, 0x01,
- 0x09, 0x6a, 0xdc, 0x01,
- 0x88, 0xee, 0x08, 0x64,
- 0x19, 0x6a, 0xdc, 0x01,
- 0xd8, 0xee, 0x0c, 0x64,
- 0xff, 0x6a, 0xdc, 0x09,
- 0x18, 0xee, 0x10, 0x6c,
- 0xff, 0x6a, 0xd4, 0x0c,
- 0x88, 0x6a, 0xcc, 0x00,
- 0x41, 0x6a, 0xd6, 0x5b,
- 0x20, 0x6a, 0x18, 0x01,
- 0xff, 0x6a, 0x1a, 0x09,
- 0xff, 0x6a, 0x1c, 0x09,
- 0xff, 0x35, 0x26, 0x09,
- 0x04, 0x35, 0x3c, 0x6c,
- 0xa0, 0x6a, 0xca, 0x00,
- 0x20, 0x65, 0xc8, 0x18,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0xff, 0x6c, 0x32, 0x09,
- 0x00, 0x65, 0x26, 0x64,
- 0x0a, 0x93, 0x26, 0x01,
- 0x00, 0x65, 0x78, 0x44,
- 0xa0, 0x6a, 0xcc, 0x00,
- 0xe8, 0x6a, 0xc8, 0x00,
- 0x01, 0x94, 0x40, 0x6c,
- 0x10, 0x94, 0x42, 0x6c,
- 0x08, 0x94, 0x54, 0x6c,
- 0x08, 0x94, 0x54, 0x6c,
- 0x08, 0x94, 0x54, 0x6c,
- 0x00, 0x65, 0x68, 0x5c,
- 0x08, 0x64, 0xc8, 0x18,
- 0x00, 0x8c, 0xca, 0x18,
- 0x00, 0x65, 0x4a, 0x4c,
- 0x00, 0x65, 0x40, 0x44,
- 0xf7, 0x93, 0x26, 0x09,
- 0x08, 0x93, 0x56, 0x6c,
- 0x00, 0x65, 0x68, 0x5c,
- 0x08, 0x64, 0xc8, 0x18,
- 0x08, 0x64, 0x58, 0x64,
- 0xff, 0x6a, 0xd4, 0x0c,
- 0x00, 0x65, 0x78, 0x5c,
- 0x00, 0x65, 0x68, 0x5c,
- 0x00, 0x65, 0x68, 0x5c,
- 0x00, 0x65, 0x68, 0x5c,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x08,
- 0xff, 0x99, 0xda, 0x0c,
- 0x08, 0x94, 0x78, 0x7c,
- 0xf7, 0x93, 0x26, 0x09,
- 0x08, 0x93, 0x7c, 0x6c,
- 0xff, 0x6a, 0xd4, 0x0c,
- 0xff, 0x40, 0x74, 0x09,
- 0xff, 0x90, 0x80, 0x08,
- 0xff, 0x6a, 0x72, 0x05,
- 0xff, 0x40, 0x94, 0x64,
- 0xff, 0x3f, 0x8c, 0x64,
- 0xff, 0x6a, 0xca, 0x04,
- 0xff, 0x3f, 0x20, 0x09,
- 0x01, 0x6a, 0x6a, 0x00,
- 0x00, 0xb9, 0xe6, 0x5b,
- 0xff, 0xba, 0x7e, 0x0c,
- 0xff, 0x40, 0x20, 0x09,
- 0xff, 0xba, 0x80, 0x0c,
- 0xff, 0x3f, 0x74, 0x09,
- 0xff, 0x90, 0x7e, 0x0c,
-};
-
-static int aic7xxx_patch15_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch15_func(struct aic7xxx_host *p)
-{
- return ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0);
-}
-
-static int aic7xxx_patch14_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch14_func(struct aic7xxx_host *p)
-{
- return ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0);
-}
-
-static int aic7xxx_patch13_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch13_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_WIDE) != 0);
-}
-
-static int aic7xxx_patch12_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch12_func(struct aic7xxx_host *p)
-{
- return ((p->bugs & AHC_BUG_AUTOFLUSH) != 0);
-}
-
-static int aic7xxx_patch11_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch11_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_ULTRA2) == 0);
-}
-
-static int aic7xxx_patch10_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch10_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_CMD_CHAN) == 0);
-}
-
-static int aic7xxx_patch9_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch9_func(struct aic7xxx_host *p)
-{
- return ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895);
-}
-
-static int aic7xxx_patch8_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch8_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_ULTRA) != 0);
-}
-
-static int aic7xxx_patch7_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch7_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_ULTRA2) != 0);
-}
-
-static int aic7xxx_patch6_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch6_func(struct aic7xxx_host *p)
-{
- return ((p->flags & AHC_PAGESCBS) == 0);
-}
-
-static int aic7xxx_patch5_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch5_func(struct aic7xxx_host *p)
-{
- return ((p->flags & AHC_PAGESCBS) != 0);
-}
-
-static int aic7xxx_patch4_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch4_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_QUEUE_REGS) != 0);
-}
-
-static int aic7xxx_patch3_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch3_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_TWIN) != 0);
-}
-
-static int aic7xxx_patch2_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch2_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_QUEUE_REGS) == 0);
-}
-
-static int aic7xxx_patch1_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch1_func(struct aic7xxx_host *p)
-{
- return ((p->features & AHC_CMD_CHAN) != 0);
-}
-
-static int aic7xxx_patch0_func(struct aic7xxx_host *p);
-
-static int
-aic7xxx_patch0_func(struct aic7xxx_host *p)
-{
- return (0);
-}
-
-struct sequencer_patch {
- int (*patch_func)(struct aic7xxx_host *);
- unsigned int begin :10,
- skip_instr :10,
- skip_patch :12;
-} sequencer_patches[] = {
- { aic7xxx_patch1_func, 3, 2, 1 },
- { aic7xxx_patch2_func, 7, 1, 1 },
- { aic7xxx_patch2_func, 8, 1, 1 },
- { aic7xxx_patch3_func, 11, 4, 1 },
- { aic7xxx_patch4_func, 16, 3, 2 },
- { aic7xxx_patch0_func, 19, 4, 1 },
- { aic7xxx_patch5_func, 23, 1, 1 },
- { aic7xxx_patch6_func, 26, 1, 1 },
- { aic7xxx_patch1_func, 29, 1, 2 },
- { aic7xxx_patch0_func, 30, 3, 1 },
- { aic7xxx_patch3_func, 39, 4, 1 },
- { aic7xxx_patch7_func, 43, 3, 2 },
- { aic7xxx_patch0_func, 46, 3, 1 },
- { aic7xxx_patch8_func, 52, 7, 1 },
- { aic7xxx_patch3_func, 60, 3, 1 },
- { aic7xxx_patch7_func, 63, 2, 1 },
- { aic7xxx_patch7_func, 102, 1, 2 },
- { aic7xxx_patch0_func, 103, 2, 1 },
- { aic7xxx_patch7_func, 107, 2, 1 },
- { aic7xxx_patch9_func, 109, 1, 1 },
- { aic7xxx_patch10_func, 110, 2, 1 },
- { aic7xxx_patch7_func, 113, 1, 2 },
- { aic7xxx_patch0_func, 114, 1, 1 },
- { aic7xxx_patch1_func, 118, 1, 1 },
- { aic7xxx_patch1_func, 121, 3, 3 },
- { aic7xxx_patch11_func, 123, 1, 1 },
- { aic7xxx_patch0_func, 124, 5, 1 },
- { aic7xxx_patch7_func, 132, 1, 1 },
- { aic7xxx_patch9_func, 133, 1, 1 },
- { aic7xxx_patch10_func, 134, 3, 1 },
- { aic7xxx_patch7_func, 137, 3, 2 },
- { aic7xxx_patch0_func, 140, 2, 1 },
- { aic7xxx_patch7_func, 142, 5, 2 },
- { aic7xxx_patch0_func, 147, 3, 1 },
- { aic7xxx_patch7_func, 150, 1, 2 },
- { aic7xxx_patch0_func, 151, 2, 1 },
- { aic7xxx_patch1_func, 153, 15, 4 },
- { aic7xxx_patch11_func, 166, 1, 2 },
- { aic7xxx_patch0_func, 167, 1, 1 },
- { aic7xxx_patch0_func, 168, 10, 1 },
- { aic7xxx_patch7_func, 181, 1, 2 },
- { aic7xxx_patch0_func, 182, 2, 1 },
- { aic7xxx_patch7_func, 184, 18, 1 },
- { aic7xxx_patch1_func, 202, 3, 3 },
- { aic7xxx_patch7_func, 204, 1, 1 },
- { aic7xxx_patch0_func, 205, 4, 1 },
- { aic7xxx_patch7_func, 210, 2, 1 },
- { aic7xxx_patch7_func, 215, 13, 3 },
- { aic7xxx_patch12_func, 218, 1, 1 },
- { aic7xxx_patch12_func, 219, 4, 1 },
- { aic7xxx_patch1_func, 229, 3, 3 },
- { aic7xxx_patch11_func, 231, 1, 1 },
- { aic7xxx_patch0_func, 232, 5, 1 },
- { aic7xxx_patch11_func, 237, 1, 2 },
- { aic7xxx_patch0_func, 238, 9, 1 },
- { aic7xxx_patch13_func, 254, 1, 2 },
- { aic7xxx_patch0_func, 255, 1, 1 },
- { aic7xxx_patch4_func, 316, 1, 2 },
- { aic7xxx_patch0_func, 317, 1, 1 },
- { aic7xxx_patch2_func, 320, 1, 1 },
- { aic7xxx_patch1_func, 330, 3, 2 },
- { aic7xxx_patch0_func, 333, 5, 1 },
- { aic7xxx_patch13_func, 341, 1, 2 },
- { aic7xxx_patch0_func, 342, 1, 1 },
- { aic7xxx_patch5_func, 347, 1, 1 },
- { aic7xxx_patch11_func, 389, 15, 2 },
- { aic7xxx_patch14_func, 402, 1, 1 },
- { aic7xxx_patch1_func, 441, 7, 2 },
- { aic7xxx_patch0_func, 448, 8, 1 },
- { aic7xxx_patch1_func, 457, 4, 2 },
- { aic7xxx_patch0_func, 461, 6, 1 },
- { aic7xxx_patch1_func, 467, 4, 2 },
- { aic7xxx_patch0_func, 471, 3, 1 },
- { aic7xxx_patch10_func, 481, 10, 1 },
- { aic7xxx_patch1_func, 500, 22, 5 },
- { aic7xxx_patch11_func, 508, 4, 1 },
- { aic7xxx_patch7_func, 512, 7, 3 },
- { aic7xxx_patch15_func, 512, 5, 2 },
- { aic7xxx_patch0_func, 517, 2, 1 },
- { aic7xxx_patch10_func, 522, 50, 3 },
- { aic7xxx_patch14_func, 543, 17, 2 },
- { aic7xxx_patch0_func, 560, 4, 1 },
- { aic7xxx_patch10_func, 572, 4, 1 },
- { aic7xxx_patch5_func, 576, 2, 1 },
- { aic7xxx_patch5_func, 579, 9, 1 },
-
-};
diff --git a/drivers/scsi/aic7xxx_old/scsi_message.h b/drivers/scsi/aic7xxx_old/scsi_message.h
deleted file mode 100644
index a79f89c65173..000000000000
--- a/drivers/scsi/aic7xxx_old/scsi_message.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Messages (1 byte) */ /* I/T (M)andatory or (O)ptional */
-#define MSG_CMDCOMPLETE 0x00 /* M/M */
-#define MSG_EXTENDED 0x01 /* O/O */
-#define MSG_SAVEDATAPOINTER 0x02 /* O/O */
-#define MSG_RESTOREPOINTERS 0x03 /* O/O */
-#define MSG_DISCONNECT 0x04 /* O/O */
-#define MSG_INITIATOR_DET_ERR 0x05 /* M/M */
-#define MSG_ABORT 0x06 /* O/M */
-#define MSG_MESSAGE_REJECT 0x07 /* M/M */
-#define MSG_NOOP 0x08 /* M/M */
-#define MSG_PARITY_ERROR 0x09 /* M/M */
-#define MSG_LINK_CMD_COMPLETE 0x0a /* O/O */
-#define MSG_LINK_CMD_COMPLETEF 0x0b /* O/O */
-#define MSG_BUS_DEV_RESET 0x0c /* O/M */
-#define MSG_ABORT_TAG 0x0d /* O/O */
-#define MSG_CLEAR_QUEUE 0x0e /* O/O */
-#define MSG_INIT_RECOVERY 0x0f /* O/O */
-#define MSG_REL_RECOVERY 0x10 /* O/O */
-#define MSG_TERM_IO_PROC 0x11 /* O/O */
-
-/* Messages (2 byte) */
-#define MSG_SIMPLE_Q_TAG 0x20 /* O/O */
-#define MSG_HEAD_OF_Q_TAG 0x21 /* O/O */
-#define MSG_ORDERED_Q_TAG 0x22 /* O/O */
-#define MSG_IGN_WIDE_RESIDUE 0x23 /* O/O */
-
-/* Identify message */ /* M/M */
-#define MSG_IDENTIFYFLAG 0x80
-#define MSG_IDENTIFY_DISCFLAG 0x40
-#define MSG_IDENTIFY(lun, disc) (((disc) ? 0xc0 : MSG_IDENTIFYFLAG) | (lun))
-#define MSG_ISIDENTIFY(m) ((m) & MSG_IDENTIFYFLAG)
-
-/* Extended messages (opcode and length) */
-#define MSG_EXT_SDTR 0x01
-#define MSG_EXT_SDTR_LEN 0x03
-
-#define MSG_EXT_WDTR 0x03
-#define MSG_EXT_WDTR_LEN 0x02
-#define MSG_EXT_WDTR_BUS_8_BIT 0x00
-#define MSG_EXT_WDTR_BUS_16_BIT 0x01
-#define MSG_EXT_WDTR_BUS_32_BIT 0x02
-
-#define MSG_EXT_PPR 0x04
-#define MSG_EXT_PPR_LEN 0x06
-#define MSG_EXT_PPR_OPTION_ST 0x00
-#define MSG_EXT_PPR_OPTION_DT_CRC 0x02
-#define MSG_EXT_PPR_OPTION_DT_UNITS 0x03
-#define MSG_EXT_PPR_OPTION_DT_CRC_QUICK 0x04
-#define MSG_EXT_PPR_OPTION_DT_UNITS_QUICK 0x05
diff --git a/drivers/scsi/aic7xxx_old/sequencer.h b/drivers/scsi/aic7xxx_old/sequencer.h
deleted file mode 100644
index ee66855222b1..000000000000
--- a/drivers/scsi/aic7xxx_old/sequencer.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Instruction formats for the sequencer program downloaded to
- * Aic7xxx SCSI host adapters
- *
- * Copyright (c) 1997, 1998 Justin T. Gibbs.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU General Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: sequencer.h,v 1.3 1997/09/27 19:37:31 gibbs Exp $
- */
-
-#ifdef __LITTLE_ENDIAN_BITFIELD
-struct ins_format1 {
- unsigned int
- immediate : 8,
- source : 9,
- destination : 9,
- ret : 1,
- opcode : 4,
- parity : 1;
-};
-
-struct ins_format2 {
- unsigned int
- shift_control : 8,
- source : 9,
- destination : 9,
- ret : 1,
- opcode : 4,
- parity : 1;
-};
-
-struct ins_format3 {
- unsigned int
- immediate : 8,
- source : 9,
- address : 10,
- opcode : 4,
- parity : 1;
-};
-#elif defined(__BIG_ENDIAN_BITFIELD)
-struct ins_format1 {
- unsigned int
- parity : 1,
- opcode : 4,
- ret : 1,
- destination : 9,
- source : 9,
- immediate : 8;
-};
-
-struct ins_format2 {
- unsigned int
- parity : 1,
- opcode : 4,
- ret : 1,
- destination : 9,
- source : 9,
- shift_control : 8;
-};
-
-struct ins_format3 {
- unsigned int
- parity : 1,
- opcode : 4,
- address : 10,
- source : 9,
- immediate : 8;
-};
-#endif
-
-union ins_formats {
- struct ins_format1 format1;
- struct ins_format2 format2;
- struct ins_format3 format3;
- unsigned char bytes[4];
- unsigned int integer;
-};
-struct instruction {
- union ins_formats format;
- unsigned int srcline;
- struct symbol *patch_label;
- struct {
- struct instruction *stqe_next;
- } links;
-};
-
-#define AIC_OP_OR 0x0
-#define AIC_OP_AND 0x1
-#define AIC_OP_XOR 0x2
-#define AIC_OP_ADD 0x3
-#define AIC_OP_ADC 0x4
-#define AIC_OP_ROL 0x5
-#define AIC_OP_BMOV 0x6
-
-#define AIC_OP_JMP 0x8
-#define AIC_OP_JC 0x9
-#define AIC_OP_JNC 0xa
-#define AIC_OP_CALL 0xb
-#define AIC_OP_JNE 0xc
-#define AIC_OP_JNZ 0xd
-#define AIC_OP_JE 0xe
-#define AIC_OP_JZ 0xf
-
-/* Pseudo Ops */
-#define AIC_OP_SHL 0x10
-#define AIC_OP_SHR 0x20
-#define AIC_OP_ROR 0x30
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 07:01:29 +0100