* remove old and unmaintained ISA driver
@ 2016-09-19 15:50 Christoph Hellwig
2016-09-19 15:50 ` [PATCH 1/7] wd7000: remove from tree Christoph Hellwig
` (8 more replies)
0 siblings, 9 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
Per discussion in last year and last week there are a few old ISA SCSI
drivers that haven't seen any work since the dawn of git, and most likely
no users. Drop them to speed up killing off the scsi_module.c
infrastruture.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH 1/7] wd7000: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 2/7] in2000: " Christoph Hellwig
` (7 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/scsi-parameters.txt | 3 -
MAINTAINERS | 6 -
drivers/scsi/Kconfig | 12 -
drivers/scsi/Makefile | 1 -
drivers/scsi/wd7000.c | 1657 --------------------------------
5 files changed, 1679 deletions(-)
delete mode 100644 drivers/scsi/wd7000.c
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index d5ae6ce..5a5c608 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -131,6 +131,3 @@ parameters may be changed at runtime by the command
wd33c93= [HW,SCSI]
See header of drivers/scsi/wd33c93.c.
-
- wd7000= [HW,SCSI]
- See header of drivers/scsi/wd7000.c.
diff --git a/MAINTAINERS b/MAINTAINERS
index dd4966d..fdcce6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12699,12 +12699,6 @@ F: drivers/watchdog/
F: include/linux/watchdog.h
F: include/uapi/linux/watchdog.h
-WD7000 SCSI DRIVER
-M: Miroslav Zagorac <zaga@fly.cc.fer.hr>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-F: drivers/scsi/wd7000.c
-
WIIMOTE HID DRIVER
M: David Herrmann <dh.herrmann@googlemail.com>
L: linux-input@vger.kernel.org
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 75de1dc..15c6e9f 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -396,18 +396,6 @@ config SCSI_3W_SAS
Please read the comments at the top of
<file:drivers/scsi/3w-sas.c>.
-config SCSI_7000FASST
- tristate "7000FASST SCSI support"
- depends on ISA && SCSI && ISA_DMA_API
- select CHECK_SIGNATURE
- help
- This driver supports the Western Digital 7000 SCSI host adapter
- family. Some information is in the source:
- <file:drivers/scsi/wd7000.c>.
-
- To compile this driver as a module, choose M here: the
- module will be called wd7000.
-
config SCSI_ACARD
tristate "ACARD SCSI support"
depends on PCI && SCSI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index fc0d9b8..d870cc5 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -99,7 +99,6 @@ obj-$(CONFIG_SCSI_DTC3280) += dtc.o
obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/
obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o
obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o
-obj-$(CONFIG_SCSI_7000FASST) += wd7000.o
obj-$(CONFIG_SCSI_EATA) += eata.o
obj-$(CONFIG_SCSI_DC395x) += dc395x.o
obj-$(CONFIG_SCSI_AM53C974) += esp_scsi.o am53c974.o
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
deleted file mode 100644
index 409f959..0000000
--- a/drivers/scsi/wd7000.c
+++ /dev/null
@@ -1,1657 +0,0 @@
-/* $Id: $
- * linux/drivers/scsi/wd7000.c
- *
- * Copyright (C) 1992 Thomas Wuensche
- * closely related to the aha1542 driver from Tommy Thorn
- * ( as close as different hardware allows on a lowlevel-driver :-) )
- *
- * Revised (and renamed) by John Boyd <boyd@cis.ohio-state.edu> to
- * accommodate Eric Youngdale's modifications to scsi.c. Nov 1992.
- *
- * Additional changes to support scatter/gather. Dec. 1992. tw/jb
- *
- * No longer tries to reset SCSI bus at boot (it wasn't working anyway).
- * Rewritten to support multiple host adapters.
- * Miscellaneous cleanup.
- * So far, still doesn't do reset or abort correctly, since I have no idea
- * how to do them with this board (8^(. Jan 1994 jb
- *
- * This driver now supports both of the two standard configurations (per
- * the 3.36 Owner's Manual, my latest reference) by the same method as
- * before; namely, by looking for a BIOS signature. Thus, the location of
- * the BIOS signature determines the board configuration. Until I have
- * time to do something more flexible, users should stick to one of the
- * following:
- *
- * Standard configuration for single-adapter systems:
- * - BIOS at CE00h
- * - I/O base address 350h
- * - IRQ level 15
- * - DMA channel 6
- * Standard configuration for a second adapter in a system:
- * - BIOS at C800h
- * - I/O base address 330h
- * - IRQ level 11
- * - DMA channel 5
- *
- * Anyone who can recompile the kernel is welcome to add others as need
- * arises, but unpredictable results may occur if there are conflicts.
- * In any event, if there are multiple adapters in a system, they MUST
- * use different I/O bases, IRQ levels, and DMA channels, since they will be
- * indistinguishable (and in direct conflict) otherwise.
- *
- * As a point of information, the NO_OP command toggles the CMD_RDY bit
- * of the status port, and this fact could be used as a test for the I/O
- * base address (or more generally, board detection). There is an interrupt
- * status port, so IRQ probing could also be done. I suppose the full
- * DMA diagnostic could be used to detect the DMA channel being used. I
- * haven't done any of this, though, because I think there's too much of
- * a chance that such explorations could be destructive, if some other
- * board's resources are used inadvertently. So, call me a wimp, but I
- * don't want to try it. The only kind of exploration I trust is memory
- * exploration, since it's more certain that reading memory won't be
- * destructive.
- *
- * More to my liking would be a LILO boot command line specification, such
- * as is used by the aha152x driver (and possibly others). I'll look into
- * it, as I have time...
- *
- * I get mail occasionally from people who either are using or are
- * considering using a WD7000 with Linux. There is a variety of
- * nomenclature describing WD7000's. To the best of my knowledge, the
- * following is a brief summary (from an old WD doc - I don't work for
- * them or anything like that):
- *
- * WD7000-FASST2: This is a WD7000 board with the real-mode SST ROM BIOS
- * installed. Last I heard, the BIOS was actually done by Columbia
- * Data Products. The BIOS is only used by this driver (and thus
- * by Linux) to identify the board; none of it can be executed under
- * Linux.
- *
- * WD7000-ASC: This is the original adapter board, with or without BIOS.
- * The board uses a WD33C93 or WD33C93A SBIC, which in turn is
- * controlled by an onboard Z80 processor. The board interface
- * visible to the host CPU is defined effectively by the Z80's
- * firmware, and it is this firmware's revision level that is
- * determined and reported by this driver. (The version of the
- * on-board BIOS is of no interest whatsoever.) The host CPU has
- * no access to the SBIC; hence the fact that it is a WD33C93 is
- * also of no interest to this driver.
- *
- * WD7000-AX:
- * WD7000-MX:
- * WD7000-EX: These are newer versions of the WD7000-ASC. The -ASC is
- * largely built from discrete components; these boards use more
- * integration. The -AX is an ISA bus board (like the -ASC),
- * the -MX is an MCA (i.e., PS/2) bus board), and the -EX is an
- * EISA bus board.
- *
- * At the time of my documentation, the -?X boards were "future" products,
- * and were not yet available. However, I vaguely recall that Thomas
- * Wuensche had an -AX, so I believe at least it is supported by this
- * driver. I have no personal knowledge of either -MX or -EX boards.
- *
- * P.S. Just recently, I've discovered (directly from WD and Future
- * Domain) that all but the WD7000-EX have been out of production for
- * two years now. FD has production rights to the 7000-EX, and are
- * producing it under a new name, and with a new BIOS. If anyone has
- * one of the FD boards, it would be nice to come up with a signature
- * for it.
- * J.B. Jan 1994.
- *
- *
- * Revisions by Miroslav Zagorac <zaga@fly.cc.fer.hr>
- *
- * 08/24/1996.
- *
- * Enhancement for wd7000_detect function has been made, so you don't have
- * to enter BIOS ROM address in initialisation data (see struct Config).
- * We cannot detect IRQ, DMA and I/O base address for now, so we have to
- * enter them as arguments while wd_7000 is detected. If someone has IRQ,
- * DMA or I/O base address set to some other value, he can enter them in
- * configuration without any problem. Also I wrote a function wd7000_setup,
- * so now you can enter WD-7000 definition as kernel arguments,
- * as in lilo.conf:
- *
- * append="wd7000=IRQ,DMA,IO"
- *
- * PS: If card BIOS ROM is disabled, function wd7000_detect now will recognize
- * adapter, unlike the old one. Anyway, BIOS ROM from WD7000 adapter is
- * useless for Linux. B^)
- *
- *
- * 09/06/1996.
- *
- * Autodetecting of I/O base address from wd7000_detect function is removed,
- * some little bugs removed, etc...
- *
- * Thanks to Roger Scott for driver debugging.
- *
- * 06/07/1997
- *
- * Added support for /proc file system (/proc/scsi/wd7000/[0...] files).
- * Now, driver can handle hard disks with capacity >1GB.
- *
- * 01/15/1998
- *
- * Added support for BUS_ON and BUS_OFF parameters in config line.
- * Miscellaneous cleanup.
- *
- * 03/01/1998
- *
- * WD7000 driver now work on kernels >= 2.1.x
- *
- *
- * 12/31/2001 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *
- * use host->host_lock, not io_request_lock, cleanups
- *
- * 2002/10/04 - Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Use dev_id for interrupts, kill __func__ pasting
- * Add a lock for the scb pool, clean up all other cli/sti usage stuff
- * Use the adapter lock for the other places we had the cli's
- *
- * 2002/10/06 - Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Switch to new style error handling
- * Clean up delay to udelay, and yielding sleeps
- * Make host reset actually reset the card
- * Make everything static
- *
- * 2003/02/12 - Christoph Hellwig <hch@infradead.org>
- *
- * Cleaned up host template definition
- * Removed now obsolete wd7000.h
- */
-
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/blkdev.h>
-#include <linux/init.h>
-#include <linux/stat.h>
-#include <linux/io.h>
-
-#include <asm/dma.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsicam.h>
-
-
-#undef WD7000_DEBUG /* general debug */
-#ifdef WD7000_DEBUG
-#define dprintk printk
-#else
-#define dprintk no_printk
-#endif
-
-/*
- * Mailbox structure sizes.
- * I prefer to keep the number of ICMBs much larger than the number of
- * OGMBs. OGMBs are used very quickly by the driver to start one or
- * more commands, while ICMBs are used by the host adapter per command.
- */
-#define OGMB_CNT 16
-#define ICMB_CNT 32
-
-/*
- * Scb's are shared by all active adapters. So, if they all become busy,
- * callers may be made to wait in alloc_scbs for them to free. That can
- * be avoided by setting MAX_SCBS to NUM_CONFIG * WD7000_Q. If you'd
- * rather conserve memory, use a smaller number (> 0, of course) - things
- * will should still work OK.
- */
-#define MAX_SCBS 32
-
-/*
- * In this version, sg_tablesize now defaults to WD7000_SG, and will
- * be set to SG_NONE for older boards. This is the reverse of the
- * previous default, and was changed so that the driver-level
- * scsi_host_template would reflect the driver's support for scatter/
- * gather.
- *
- * Also, it has been reported that boards at Revision 6 support scatter/
- * gather, so the new definition of an "older" board has been changed
- * accordingly.
- */
-#define WD7000_Q 16
-#define WD7000_SG 16
-
-
-/*
- * WD7000-specific mailbox structure
- *
- */
-typedef volatile struct mailbox {
- unchar status;
- unchar scbptr[3]; /* SCSI-style - MSB first (big endian) */
-} Mailbox;
-
-/*
- * This structure should contain all per-adapter global data. I.e., any
- * new global per-adapter data should put in here.
- */
-typedef struct adapter {
- struct Scsi_Host *sh; /* Pointer to Scsi_Host structure */
- int iobase; /* This adapter's I/O base address */
- int irq; /* This adapter's IRQ level */
- int dma; /* This adapter's DMA channel */
- int int_counter; /* This adapter's interrupt counter */
- int bus_on; /* This adapter's BUS_ON time */
- int bus_off; /* This adapter's BUS_OFF time */
- struct { /* This adapter's mailboxes */
- Mailbox ogmb[OGMB_CNT]; /* Outgoing mailboxes */
- Mailbox icmb[ICMB_CNT]; /* Incoming mailboxes */
- } mb;
- int next_ogmb; /* to reduce contention at mailboxes */
- unchar control; /* shadows CONTROL port value */
- unchar rev1, rev2; /* filled in by wd7000_revision */
-} Adapter;
-
-/*
- * (linear) base address for ROM BIOS
- */
-static const long wd7000_biosaddr[] = {
- 0xc0000, 0xc2000, 0xc4000, 0xc6000, 0xc8000, 0xca000, 0xcc000, 0xce000,
- 0xd0000, 0xd2000, 0xd4000, 0xd6000, 0xd8000, 0xda000, 0xdc000, 0xde000
-};
-#define NUM_ADDRS ARRAY_SIZE(wd7000_biosaddr)
-
-static const unsigned short wd7000_iobase[] = {
- 0x0300, 0x0308, 0x0310, 0x0318, 0x0320, 0x0328, 0x0330, 0x0338,
- 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370, 0x0378,
- 0x0380, 0x0388, 0x0390, 0x0398, 0x03a0, 0x03a8, 0x03b0, 0x03b8,
- 0x03c0, 0x03c8, 0x03d0, 0x03d8, 0x03e0, 0x03e8, 0x03f0, 0x03f8
-};
-#define NUM_IOPORTS ARRAY_SIZE(wd7000_iobase)
-
-static const short wd7000_irq[] = { 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 };
-#define NUM_IRQS ARRAY_SIZE(wd7000_irq)
-
-static const short wd7000_dma[] = { 5, 6, 7 };
-#define NUM_DMAS ARRAY_SIZE(wd7000_dma)
-
-/*
- * The following is set up by wd7000_detect, and used thereafter for
- * proc and other global ookups
- */
-
-#define UNITS 8
-static struct Scsi_Host *wd7000_host[UNITS];
-
-#define BUS_ON 64 /* x 125ns = 8000ns (BIOS default) */
-#define BUS_OFF 15 /* x 125ns = 1875ns (BIOS default) */
-
-/*
- * Standard Adapter Configurations - used by wd7000_detect
- */
-typedef struct {
- short irq; /* IRQ level */
- short dma; /* DMA channel */
- unsigned iobase; /* I/O base address */
- short bus_on; /* Time that WD7000 spends on the AT-bus when */
- /* transferring data. BIOS default is 8000ns. */
- short bus_off; /* Time that WD7000 spends OFF THE BUS after */
- /* while it is transferring data. */
- /* BIOS default is 1875ns */
-} Config;
-
-/*
- * Add here your configuration...
- */
-static Config configs[] = {
- {15, 6, 0x350, BUS_ON, BUS_OFF}, /* defaults for single adapter */
- {11, 5, 0x320, BUS_ON, BUS_OFF}, /* defaults for second adapter */
- {7, 6, 0x350, BUS_ON, BUS_OFF}, /* My configuration (Zaga) */
- {-1, -1, 0x0, BUS_ON, BUS_OFF} /* Empty slot */
-};
-#define NUM_CONFIGS ARRAY_SIZE(configs)
-
-/*
- * The following list defines strings to look for in the BIOS that identify
- * it as the WD7000-FASST2 SST BIOS. I suspect that something should be
- * added for the Future Domain version.
- */
-typedef struct signature {
- const char *sig; /* String to look for */
- unsigned long ofs; /* offset from BIOS base address */
- unsigned len; /* length of string */
-} Signature;
-
-static const Signature signatures[] = {
- {"SSTBIOS", 0x0000d, 7} /* "SSTBIOS" @ offset 0x0000d */
-};
-#define NUM_SIGNATURES ARRAY_SIZE(signatures)
-
-
-/*
- * I/O Port Offsets and Bit Definitions
- * 4 addresses are used. Those not defined here are reserved.
- */
-#define ASC_STAT 0 /* Status, Read */
-#define ASC_COMMAND 0 /* Command, Write */
-#define ASC_INTR_STAT 1 /* Interrupt Status, Read */
-#define ASC_INTR_ACK 1 /* Acknowledge, Write */
-#define ASC_CONTROL 2 /* Control, Write */
-
-/*
- * ASC Status Port
- */
-#define INT_IM 0x80 /* Interrupt Image Flag */
-#define CMD_RDY 0x40 /* Command Port Ready */
-#define CMD_REJ 0x20 /* Command Port Byte Rejected */
-#define ASC_INIT 0x10 /* ASC Initialized Flag */
-#define ASC_STATMASK 0xf0 /* The lower 4 Bytes are reserved */
-
-/*
- * COMMAND opcodes
- *
- * Unfortunately, I have no idea how to properly use some of these commands,
- * as the OEM manual does not make it clear. I have not been able to use
- * enable/disable unsolicited interrupts or the reset commands with any
- * discernible effect whatsoever. I think they may be related to certain
- * ICB commands, but again, the OEM manual doesn't make that clear.
- */
-#define NO_OP 0 /* NO-OP toggles CMD_RDY bit in ASC_STAT */
-#define INITIALIZATION 1 /* initialization (10 bytes) */
-#define DISABLE_UNS_INTR 2 /* disable unsolicited interrupts */
-#define ENABLE_UNS_INTR 3 /* enable unsolicited interrupts */
-#define INTR_ON_FREE_OGMB 4 /* interrupt on free OGMB */
-#define SOFT_RESET 5 /* SCSI bus soft reset */
-#define HARD_RESET_ACK 6 /* SCSI bus hard reset acknowledge */
-#define START_OGMB 0x80 /* start command in OGMB (n) */
-#define SCAN_OGMBS 0xc0 /* start multiple commands, signature (n) */
- /* where (n) = lower 6 bits */
-/*
- * For INITIALIZATION:
- */
-typedef struct initCmd {
- unchar op; /* command opcode (= 1) */
- unchar ID; /* Adapter's SCSI ID */
- unchar bus_on; /* Bus on time, x 125ns (see below) */
- unchar bus_off; /* Bus off time, "" "" */
- unchar rsvd; /* Reserved */
- unchar mailboxes[3]; /* Address of Mailboxes, MSB first */
- unchar ogmbs; /* Number of outgoing MBs, max 64, 0,1 = 1 */
- unchar icmbs; /* Number of incoming MBs, "" "" */
-} InitCmd;
-
-/*
- * Interrupt Status Port - also returns diagnostic codes at ASC reset
- *
- * if msb is zero, the lower bits are diagnostic status
- * Diagnostics:
- * 01 No diagnostic error occurred
- * 02 RAM failure
- * 03 FIFO R/W failed
- * 04 SBIC register read/write failed
- * 05 Initialization D-FF failed
- * 06 Host IRQ D-FF failed
- * 07 ROM checksum error
- * Interrupt status (bitwise):
- * 10NNNNNN outgoing mailbox NNNNNN is free
- * 11NNNNNN incoming mailbox NNNNNN needs service
- */
-#define MB_INTR 0xC0 /* Mailbox Service possible/required */
-#define IMB_INTR 0x40 /* 1 Incoming / 0 Outgoing */
-#define MB_MASK 0x3f /* mask for mailbox number */
-
-/*
- * CONTROL port bits
- */
-#define INT_EN 0x08 /* Interrupt Enable */
-#define DMA_EN 0x04 /* DMA Enable */
-#define SCSI_RES 0x02 /* SCSI Reset */
-#define ASC_RES 0x01 /* ASC Reset */
-
-/*
- * Driver data structures:
- * - mb and scbs are required for interfacing with the host adapter.
- * An SCB has extra fields not visible to the adapter; mb's
- * _cannot_ do this, since the adapter assumes they are contiguous in
- * memory, 4 bytes each, with ICMBs following OGMBs, and uses this fact
- * to access them.
- * - An icb is for host-only (non-SCSI) commands. ICBs are 16 bytes each;
- * the additional bytes are used only by the driver.
- * - For now, a pool of SCBs are kept in global storage by this driver,
- * and are allocated and freed as needed.
- *
- * The 7000-FASST2 marks OGMBs empty as soon as it has _started_ a command,
- * not when it has finished. Since the SCB must be around for completion,
- * problems arise when SCBs correspond to OGMBs, which may be reallocated
- * earlier (or delayed unnecessarily until a command completes).
- * Mailboxes are used as transient data structures, simply for
- * carrying SCB addresses to/from the 7000-FASST2.
- *
- * Note also since SCBs are not "permanently" associated with mailboxes,
- * there is no need to keep a global list of scsi_cmnd pointers indexed
- * by OGMB. Again, SCBs reference their scsi_cmnds directly, so mailbox
- * indices need not be involved.
- */
-
-/*
- * WD7000-specific scatter/gather element structure
- */
-typedef struct sgb {
- unchar len[3];
- unchar ptr[3]; /* Also SCSI-style - MSB first */
-} Sgb;
-
-typedef struct scb { /* Command Control Block 5.4.1 */
- unchar op; /* Command Control Block Operation Code */
- unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
- /* Outbound data transfer, length is checked */
- /* Inbound data transfer, length is checked */
- /* Logical Unit Number */
- unchar cdb[12]; /* SCSI Command Block */
- volatile unchar status; /* SCSI Return Status */
- volatile unchar vue; /* Vendor Unique Error Code */
- unchar maxlen[3]; /* Maximum Data Transfer Length */
- unchar dataptr[3]; /* SCSI Data Block Pointer */
- unchar linkptr[3]; /* Next Command Link Pointer */
- unchar direc; /* Transfer Direction */
- unchar reserved2[6]; /* SCSI Command Descriptor Block */
- /* end of hardware SCB */
- struct scsi_cmnd *SCpnt;/* scsi_cmnd using this SCB */
- Sgb sgb[WD7000_SG]; /* Scatter/gather list for this SCB */
- Adapter *host; /* host adapter */
- struct scb *next; /* for lists of scbs */
-} Scb;
-
-/*
- * This driver is written to allow host-only commands to be executed.
- * These use a 16-byte block called an ICB. The format is extended by the
- * driver to 18 bytes, to support the status returned in the ICMB and
- * an execution phase code.
- *
- * There are other formats besides these; these are the ones I've tried
- * to use. Formats for some of the defined ICB opcodes are not defined
- * (notably, get/set unsolicited interrupt status) in my copy of the OEM
- * manual, and others are ambiguous/hard to follow.
- */
-#define ICB_OP_MASK 0x80 /* distinguishes scbs from icbs */
-#define ICB_OP_OPEN_RBUF 0x80 /* open receive buffer */
-#define ICB_OP_RECV_CMD 0x81 /* receive command from initiator */
-#define ICB_OP_RECV_DATA 0x82 /* receive data from initiator */
-#define ICB_OP_RECV_SDATA 0x83 /* receive data with status from init. */
-#define ICB_OP_SEND_DATA 0x84 /* send data with status to initiator */
-#define ICB_OP_SEND_STAT 0x86 /* send command status to initiator */
- /* 0x87 is reserved */
-#define ICB_OP_READ_INIT 0x88 /* read initialization bytes */
-#define ICB_OP_READ_ID 0x89 /* read adapter's SCSI ID */
-#define ICB_OP_SET_UMASK 0x8A /* set unsolicited interrupt mask */
-#define ICB_OP_GET_UMASK 0x8B /* read unsolicited interrupt mask */
-#define ICB_OP_GET_REVISION 0x8C /* read firmware revision level */
-#define ICB_OP_DIAGNOSTICS 0x8D /* execute diagnostics */
-#define ICB_OP_SET_EPARMS 0x8E /* set execution parameters */
-#define ICB_OP_GET_EPARMS 0x8F /* read execution parameters */
-
-typedef struct icbRecvCmd {
- unchar op;
- unchar IDlun; /* Initiator SCSI ID/lun */
- unchar len[3]; /* command buffer length */
- unchar ptr[3]; /* command buffer address */
- unchar rsvd[7]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbRecvCmd;
-
-typedef struct icbSendStat {
- unchar op;
- unchar IDlun; /* Target SCSI ID/lun */
- unchar stat; /* (outgoing) completion status byte 1 */
- unchar rsvd[12]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbSendStat;
-
-typedef struct icbRevLvl {
- unchar op;
- volatile unchar primary; /* primary revision level (returned) */
- volatile unchar secondary; /* secondary revision level (returned) */
- unchar rsvd[12]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbRevLvl;
-
-typedef struct icbUnsMask { /* I'm totally guessing here */
- unchar op;
- volatile unchar mask[14]; /* mask bits */
-#if 0
- unchar rsvd[12]; /* reserved */
-#endif
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbUnsMask;
-
-typedef struct icbDiag {
- unchar op;
- unchar type; /* diagnostics type code (0-3) */
- unchar len[3]; /* buffer length */
- unchar ptr[3]; /* buffer address */
- unchar rsvd[7]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbDiag;
-
-#define ICB_DIAG_POWERUP 0 /* Power-up diags only */
-#define ICB_DIAG_WALKING 1 /* walking 1's pattern */
-#define ICB_DIAG_DMA 2 /* DMA - system memory diags */
-#define ICB_DIAG_FULL 3 /* do both 1 & 2 */
-
-typedef struct icbParms {
- unchar op;
- unchar rsvd1; /* reserved */
- unchar len[3]; /* parms buffer length */
- unchar ptr[3]; /* parms buffer address */
- unchar idx[2]; /* index (MSB-LSB) */
- unchar rsvd2[5]; /* reserved */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbParms;
-
-typedef struct icbAny {
- unchar op;
- unchar data[14]; /* format-specific data */
- volatile unchar vue; /* vendor-unique error code */
- volatile unchar status; /* returned (icmb) status */
- volatile unchar phase; /* used by interrupt handler */
-} IcbAny;
-
-typedef union icb {
- unchar op; /* ICB opcode */
- IcbRecvCmd recv_cmd; /* format for receive command */
- IcbSendStat send_stat; /* format for send status */
- IcbRevLvl rev_lvl; /* format for get revision level */
- IcbDiag diag; /* format for execute diagnostics */
- IcbParms eparms; /* format for get/set exec parms */
- IcbAny icb; /* generic format */
- unchar data[18];
-} Icb;
-
-#ifdef MODULE
-static char *wd7000;
-module_param(wd7000, charp, 0);
-#endif
-
-/*
- * Driver SCB structure pool.
- *
- * The SCBs declared here are shared by all host adapters; hence, this
- * structure is not part of the Adapter structure.
- */
-static Scb scbs[MAX_SCBS];
-static Scb *scbfree; /* free list */
-static int freescbs = MAX_SCBS; /* free list counter */
-static spinlock_t scbpool_lock; /* guards the scb free list and count */
-
-/*
- * END of data/declarations - code follows.
- */
-static void __init setup_error(char *mesg, int *ints)
-{
- if (ints[0] == 3)
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x\" -> %s\n", ints[1], ints[2], ints[3], mesg);
- else if (ints[0] == 4)
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x,%d\" -> %s\n", ints[1], ints[2], ints[3], ints[4], mesg);
- else
- printk(KERN_ERR "wd7000_setup: \"wd7000=%d,%d,0x%x,%d,%d\" -> %s\n", ints[1], ints[2], ints[3], ints[4], ints[5], mesg);
-}
-
-
-/*
- * Note: You can now set these options from the kernel's "command line".
- * The syntax is:
- *
- * wd7000=<IRQ>,<DMA>,<IO>[,<BUS_ON>[,<BUS_OFF>]]
- *
- * , where BUS_ON and BUS_OFF are in nanoseconds. BIOS default values
- * are 8000ns for BUS_ON and 1875ns for BUS_OFF.
- * eg:
- * wd7000=7,6,0x350
- *
- * will configure the driver for a WD-7000 controller
- * using IRQ 15 with a DMA channel 6, at IO base address 0x350.
- */
-static int __init wd7000_setup(char *str)
-{
- static short wd7000_card_num; /* .bss will zero this */
- short i;
- int ints[6];
-
- (void) get_options(str, ARRAY_SIZE(ints), ints);
-
- if (wd7000_card_num >= NUM_CONFIGS) {
- printk(KERN_ERR "%s: Too many \"wd7000=\" configurations in " "command line!\n", __func__);
- return 0;
- }
-
- if ((ints[0] < 3) || (ints[0] > 5)) {
- printk(KERN_ERR "%s: Error in command line! " "Usage: wd7000=<IRQ>,<DMA>,IO>[,<BUS_ON>" "[,<BUS_OFF>]]\n", __func__);
- } else {
- for (i = 0; i < NUM_IRQS; i++)
- if (ints[1] == wd7000_irq[i])
- break;
-
- if (i == NUM_IRQS) {
- setup_error("invalid IRQ.", ints);
- return 0;
- } else
- configs[wd7000_card_num].irq = ints[1];
-
- for (i = 0; i < NUM_DMAS; i++)
- if (ints[2] == wd7000_dma[i])
- break;
-
- if (i == NUM_DMAS) {
- setup_error("invalid DMA channel.", ints);
- return 0;
- } else
- configs[wd7000_card_num].dma = ints[2];
-
- for (i = 0; i < NUM_IOPORTS; i++)
- if (ints[3] == wd7000_iobase[i])
- break;
-
- if (i == NUM_IOPORTS) {
- setup_error("invalid I/O base address.", ints);
- return 0;
- } else
- configs[wd7000_card_num].iobase = ints[3];
-
- if (ints[0] > 3) {
- if ((ints[4] < 500) || (ints[4] > 31875)) {
- setup_error("BUS_ON value is out of range (500" " to 31875 nanoseconds)!", ints);
- configs[wd7000_card_num].bus_on = BUS_ON;
- } else
- configs[wd7000_card_num].bus_on = ints[4] / 125;
- } else
- configs[wd7000_card_num].bus_on = BUS_ON;
-
- if (ints[0] > 4) {
- if ((ints[5] < 500) || (ints[5] > 31875)) {
- setup_error("BUS_OFF value is out of range (500" " to 31875 nanoseconds)!", ints);
- configs[wd7000_card_num].bus_off = BUS_OFF;
- } else
- configs[wd7000_card_num].bus_off = ints[5] / 125;
- } else
- configs[wd7000_card_num].bus_off = BUS_OFF;
-
- if (wd7000_card_num) {
- for (i = 0; i < (wd7000_card_num - 1); i++) {
- int j = i + 1;
-
- for (; j < wd7000_card_num; j++)
- if (configs[i].irq == configs[j].irq) {
- setup_error("duplicated IRQ!", ints);
- return 0;
- }
- if (configs[i].dma == configs[j].dma) {
- setup_error("duplicated DMA " "channel!", ints);
- return 0;
- }
- if (configs[i].iobase == configs[j].iobase) {
- setup_error("duplicated I/O " "base address!", ints);
- return 0;
- }
- }
- }
-
- dprintk(KERN_DEBUG "wd7000_setup: IRQ=%d, DMA=%d, I/O=0x%x, "
- "BUS_ON=%dns, BUS_OFF=%dns\n", configs[wd7000_card_num].irq, configs[wd7000_card_num].dma, configs[wd7000_card_num].iobase, configs[wd7000_card_num].bus_on * 125, configs[wd7000_card_num].bus_off * 125);
-
- wd7000_card_num++;
- }
- return 1;
-}
-
-__setup("wd7000=", wd7000_setup);
-
-static inline void any2scsi(unchar * scsi, int any)
-{
- *scsi++ = (unsigned)any >> 16;
- *scsi++ = (unsigned)any >> 8;
- *scsi++ = any;
-}
-
-static inline int scsi2int(unchar * scsi)
-{
- return (scsi[0] << 16) | (scsi[1] << 8) | scsi[2];
-}
-
-static inline void wd7000_enable_intr(Adapter * host)
-{
- host->control |= INT_EN;
- outb(host->control, host->iobase + ASC_CONTROL);
-}
-
-
-static inline void wd7000_enable_dma(Adapter * host)
-{
- unsigned long flags;
- host->control |= DMA_EN;
- outb(host->control, host->iobase + ASC_CONTROL);
-
- flags = claim_dma_lock();
- set_dma_mode(host->dma, DMA_MODE_CASCADE);
- enable_dma(host->dma);
- release_dma_lock(flags);
-
-}
-
-
-#define WAITnexttimeout 200 /* 2 seconds */
-
-static inline short WAIT(unsigned port, unsigned mask, unsigned allof, unsigned noneof)
-{
- unsigned WAITbits;
- unsigned long WAITtimeout = jiffies + WAITnexttimeout;
-
- while (time_before_eq(jiffies, WAITtimeout)) {
- WAITbits = inb(port) & mask;
-
- if (((WAITbits & allof) == allof) && ((WAITbits & noneof) == 0))
- return (0);
- }
-
- return (1);
-}
-
-
-static inline int command_out(Adapter * host, unchar * cmd, int len)
-{
- if (!WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- while (len--) {
- do {
- outb(*cmd, host->iobase + ASC_COMMAND);
- WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0);
- } while (inb(host->iobase + ASC_STAT) & CMD_REJ);
-
- cmd++;
- }
-
- return (1);
- }
-
- printk(KERN_WARNING "wd7000 command_out: WAIT failed(%d)\n", len + 1);
-
- return (0);
-}
-
-
-/*
- * This version of alloc_scbs is in preparation for supporting multiple
- * commands per lun and command chaining, by queueing pending commands.
- * We will need to allocate Scbs in blocks since they will wait to be
- * executed so there is the possibility of deadlock otherwise.
- * Also, to keep larger requests from being starved by smaller requests,
- * we limit access to this routine with an internal busy flag, so that
- * the satisfiability of a request is not dependent on the size of the
- * request.
- */
-static inline Scb *alloc_scbs(struct Scsi_Host *host, int needed)
-{
- Scb *scb, *p = NULL;
- unsigned long flags;
- unsigned long timeout = jiffies + WAITnexttimeout;
- unsigned long now;
- int i;
-
- if (needed <= 0)
- return (NULL); /* sanity check */
-
- spin_unlock_irq(host->host_lock);
-
- retry:
- while (freescbs < needed) {
- timeout = jiffies + WAITnexttimeout;
- do {
- /* FIXME: can we actually just yield here ?? */
- for (now = jiffies; now == jiffies;)
- cpu_relax(); /* wait a jiffy */
- } while (freescbs < needed && time_before_eq(jiffies, timeout));
- /*
- * If we get here with enough free Scbs, we can take them.
- * Otherwise, we timed out and didn't get enough.
- */
- if (freescbs < needed) {
- printk(KERN_ERR "wd7000: can't get enough free SCBs.\n");
- return (NULL);
- }
- }
-
- /* Take the lock, then check we didn't get beaten, if so try again */
- spin_lock_irqsave(&scbpool_lock, flags);
- if (freescbs < needed) {
- spin_unlock_irqrestore(&scbpool_lock, flags);
- goto retry;
- }
-
- scb = scbfree;
- freescbs -= needed;
- for (i = 0; i < needed; i++) {
- p = scbfree;
- scbfree = p->next;
- }
- p->next = NULL;
-
- spin_unlock_irqrestore(&scbpool_lock, flags);
-
- spin_lock_irq(host->host_lock);
- return (scb);
-}
-
-
-static inline void free_scb(Scb * scb)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&scbpool_lock, flags);
-
- memset(scb, 0, sizeof(Scb));
- scb->next = scbfree;
- scbfree = scb;
- freescbs++;
-
- spin_unlock_irqrestore(&scbpool_lock, flags);
-}
-
-
-static inline void init_scbs(void)
-{
- int i;
-
- spin_lock_init(&scbpool_lock);
-
- /* This is only ever called before the SCB pool is active */
-
- scbfree = &(scbs[0]);
- memset(scbs, 0, sizeof(scbs));
- for (i = 0; i < MAX_SCBS - 1; i++) {
- scbs[i].next = &(scbs[i + 1]);
- scbs[i].SCpnt = NULL;
- }
- scbs[MAX_SCBS - 1].next = NULL;
- scbs[MAX_SCBS - 1].SCpnt = NULL;
-}
-
-
-static int mail_out(Adapter * host, Scb * scbptr)
-/*
- * Note: this can also be used for ICBs; just cast to the parm type.
- */
-{
- int i, ogmb;
- unsigned long flags;
- unchar start_ogmb;
- Mailbox *ogmbs = host->mb.ogmb;
- int *next_ogmb = &(host->next_ogmb);
-
- dprintk("wd7000_mail_out: 0x%06lx", (long) scbptr);
-
- /* We first look for a free outgoing mailbox */
- spin_lock_irqsave(host->sh->host_lock, flags);
- ogmb = *next_ogmb;
- for (i = 0; i < OGMB_CNT; i++) {
- if (ogmbs[ogmb].status == 0) {
- dprintk(" using OGMB 0x%x", ogmb);
- ogmbs[ogmb].status = 1;
- any2scsi((unchar *) ogmbs[ogmb].scbptr, (int) scbptr);
-
- *next_ogmb = (ogmb + 1) % OGMB_CNT;
- break;
- } else
- ogmb = (ogmb + 1) % OGMB_CNT;
- }
- spin_unlock_irqrestore(host->sh->host_lock, flags);
-
- dprintk(", scb is 0x%06lx", (long) scbptr);
-
- if (i >= OGMB_CNT) {
- /*
- * Alternatively, we might issue the "interrupt on free OGMB",
- * and sleep, but it must be ensured that it isn't the init
- * task running. Instead, this version assumes that the caller
- * will be persistent, and try again. Since it's the adapter
- * that marks OGMB's free, waiting even with interrupts off
- * should work, since they are freed very quickly in most cases.
- */
- dprintk(", no free OGMBs.\n");
- return (0);
- }
-
- wd7000_enable_intr(host);
-
- start_ogmb = START_OGMB | ogmb;
- command_out(host, &start_ogmb, 1);
-
- dprintk(", awaiting interrupt.\n");
-
- return (1);
-}
-
-
-static int make_code(unsigned hosterr, unsigned scsierr)
-{
-#ifdef WD7000_DEBUG
- int in_error = hosterr;
-#endif
-
- switch ((hosterr >> 8) & 0xff) {
- case 0: /* Reserved */
- hosterr = DID_ERROR;
- break;
- case 1: /* Command Complete, no errors */
- hosterr = DID_OK;
- break;
- case 2: /* Command complete, error logged in scb status (scsierr) */
- hosterr = DID_OK;
- break;
- case 4: /* Command failed to complete - timeout */
- hosterr = DID_TIME_OUT;
- break;
- case 5: /* Command terminated; Bus reset by external device */
- hosterr = DID_RESET;
- break;
- case 6: /* Unexpected Command Received w/ host as target */
- hosterr = DID_BAD_TARGET;
- break;
- case 80: /* Unexpected Reselection */
- case 81: /* Unexpected Selection */
- hosterr = DID_BAD_INTR;
- break;
- case 82: /* Abort Command Message */
- hosterr = DID_ABORT;
- break;
- case 83: /* SCSI Bus Software Reset */
- case 84: /* SCSI Bus Hardware Reset */
- hosterr = DID_RESET;
- break;
- default: /* Reserved */
- hosterr = DID_ERROR;
- }
-#ifdef WD7000_DEBUG
- if (scsierr || hosterr)
- dprintk("\nSCSI command error: SCSI 0x%02x host 0x%04x return %d\n", scsierr, in_error, hosterr);
-#endif
- return (scsierr | (hosterr << 16));
-}
-
-#define wd7000_intr_ack(host) outb (0, host->iobase + ASC_INTR_ACK)
-
-
-static irqreturn_t wd7000_intr(int irq, void *dev_id)
-{
- Adapter *host = (Adapter *) dev_id;
- int flag, icmb, errstatus, icmb_status;
- int host_error, scsi_error;
- Scb *scb; /* for SCSI commands */
- IcbAny *icb; /* for host commands */
- struct scsi_cmnd *SCpnt;
- Mailbox *icmbs = host->mb.icmb;
- unsigned long flags;
-
- spin_lock_irqsave(host->sh->host_lock, flags);
- host->int_counter++;
-
- dprintk("wd7000_intr: irq = %d, host = 0x%06lx\n", irq, (long) host);
-
- flag = inb(host->iobase + ASC_INTR_STAT);
-
- dprintk("wd7000_intr: intr stat = 0x%02x\n", flag);
-
- if (!(inb(host->iobase + ASC_STAT) & INT_IM)) {
- /* NB: these are _very_ possible if IRQ 15 is being used, since
- * it's the "garbage collector" on the 2nd 8259 PIC. Specifically,
- * any interrupt signal into the 8259 which can't be identified
- * comes out as 7 from the 8259, which is 15 to the host. Thus, it
- * is a good thing the WD7000 has an interrupt status port, so we
- * can sort these out. Otherwise, electrical noise and other such
- * problems would be indistinguishable from valid interrupts...
- */
- dprintk("wd7000_intr: phantom interrupt...\n");
- goto ack;
- }
-
- if (!(flag & MB_INTR))
- goto ack;
-
- /* The interrupt is for a mailbox */
- if (!(flag & IMB_INTR)) {
- dprintk("wd7000_intr: free outgoing mailbox\n");
- /*
- * If sleep_on() and the "interrupt on free OGMB" command are
- * used in mail_out(), wake_up() should correspondingly be called
- * here. For now, we don't need to do anything special.
- */
- goto ack;
- }
-
- /* The interrupt is for an incoming mailbox */
- icmb = flag & MB_MASK;
- icmb_status = icmbs[icmb].status;
- if (icmb_status & 0x80) { /* unsolicited - result in ICMB */
- dprintk("wd7000_intr: unsolicited interrupt 0x%02x\n", icmb_status);
- goto ack;
- }
-
- /* Aaaargh! (Zaga) */
- scb = isa_bus_to_virt(scsi2int((unchar *) icmbs[icmb].scbptr));
- icmbs[icmb].status = 0;
- if (scb->op & ICB_OP_MASK) { /* an SCB is done */
- icb = (IcbAny *) scb;
- icb->status = icmb_status;
- icb->phase = 0;
- goto ack;
- }
-
- SCpnt = scb->SCpnt;
- if (--(SCpnt->SCp.phase) <= 0) { /* all scbs are done */
- host_error = scb->vue | (icmb_status << 8);
- scsi_error = scb->status;
- errstatus = make_code(host_error, scsi_error);
- SCpnt->result = errstatus;
-
- free_scb(scb);
-
- SCpnt->scsi_done(SCpnt);
- }
-
- ack:
- dprintk("wd7000_intr: return from interrupt handler\n");
- wd7000_intr_ack(host);
-
- spin_unlock_irqrestore(host->sh->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-static int wd7000_queuecommand_lck(struct scsi_cmnd *SCpnt,
- void (*done)(struct scsi_cmnd *))
-{
- Scb *scb;
- Sgb *sgb;
- unchar *cdb = (unchar *) SCpnt->cmnd;
- unchar idlun;
- short cdblen;
- int nseg;
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- cdblen = SCpnt->cmd_len;
- idlun = ((SCpnt->device->id << 5) & 0xe0) | (SCpnt->device->lun & 7);
- SCpnt->scsi_done = done;
- SCpnt->SCp.phase = 1;
- scb = alloc_scbs(SCpnt->device->host, 1);
- scb->idlun = idlun;
- memcpy(scb->cdb, cdb, cdblen);
- scb->direc = 0x40; /* Disable direction check */
-
- scb->SCpnt = SCpnt; /* so we can find stuff later */
- SCpnt->host_scribble = (unchar *) scb;
- scb->host = host;
-
- nseg = scsi_sg_count(SCpnt);
- if (nseg > 1) {
- struct scatterlist *sg;
- unsigned i;
-
- dprintk("Using scatter/gather with %d elements.\n", nseg);
-
- sgb = scb->sgb;
- scb->op = 1;
- any2scsi(scb->dataptr, (int) sgb);
- any2scsi(scb->maxlen, nseg * sizeof(Sgb));
-
- scsi_for_each_sg(SCpnt, sg, nseg, i) {
- any2scsi(sgb[i].ptr, isa_page_to_bus(sg_page(sg)) + sg->offset);
- any2scsi(sgb[i].len, sg->length);
- }
- } else {
- scb->op = 0;
- if (nseg) {
- struct scatterlist *sg = scsi_sglist(SCpnt);
- any2scsi(scb->dataptr, isa_page_to_bus(sg_page(sg)) + sg->offset);
- }
- any2scsi(scb->maxlen, scsi_bufflen(SCpnt));
- }
-
- /* FIXME: drop lock and yield here ? */
-
- while (!mail_out(host, scb))
- cpu_relax(); /* keep trying */
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(wd7000_queuecommand)
-
-static int wd7000_diagnostics(Adapter * host, int code)
-{
- static IcbDiag icb = { ICB_OP_DIAGNOSTICS };
- static unchar buf[256];
- unsigned long timeout;
-
- icb.type = code;
- any2scsi(icb.len, sizeof(buf));
- any2scsi(icb.ptr, (int) &buf);
- icb.phase = 1;
- /*
- * This routine is only called at init, so there should be OGMBs
- * available. I'm assuming so here. If this is going to
- * fail, I can just let the timeout catch the failure.
- */
- mail_out(host, (struct scb *) &icb);
- timeout = jiffies + WAITnexttimeout; /* wait up to 2 seconds */
- while (icb.phase && time_before(jiffies, timeout)) {
- cpu_relax(); /* wait for completion */
- barrier();
- }
-
- if (icb.phase) {
- printk("wd7000_diagnostics: timed out.\n");
- return (0);
- }
- if (make_code(icb.vue | (icb.status << 8), 0)) {
- printk("wd7000_diagnostics: failed (0x%02x,0x%02x)\n", icb.vue, icb.status);
- return (0);
- }
-
- return (1);
-}
-
-
-static int wd7000_adapter_reset(Adapter * host)
-{
- InitCmd init_cmd = {
- INITIALIZATION,
- 7,
- host->bus_on,
- host->bus_off,
- 0,
- {0, 0, 0},
- OGMB_CNT,
- ICMB_CNT
- };
- int diag;
- /*
- * Reset the adapter - only. The SCSI bus was initialized at power-up,
- * and we need to do this just so we control the mailboxes, etc.
- */
- outb(ASC_RES, host->iobase + ASC_CONTROL);
- udelay(40); /* reset pulse: this is 40us, only need 25us */
- outb(0, host->iobase + ASC_CONTROL);
- host->control = 0; /* this must always shadow ASC_CONTROL */
-
- if (WAIT(host->iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- printk(KERN_ERR "wd7000_init: WAIT timed out.\n");
- return -1; /* -1 = not ok */
- }
-
- if ((diag = inb(host->iobase + ASC_INTR_STAT)) != 1) {
- printk("wd7000_init: ");
-
- switch (diag) {
- case 2:
- printk(KERN_ERR "RAM failure.\n");
- break;
- case 3:
- printk(KERN_ERR "FIFO R/W failed\n");
- break;
- case 4:
- printk(KERN_ERR "SBIC register R/W failed\n");
- break;
- case 5:
- printk(KERN_ERR "Initialization D-FF failed.\n");
- break;
- case 6:
- printk(KERN_ERR "Host IRQ D-FF failed.\n");
- break;
- case 7:
- printk(KERN_ERR "ROM checksum error.\n");
- break;
- default:
- printk(KERN_ERR "diagnostic code 0x%02Xh received.\n", diag);
- }
- return -1;
- }
- /* Clear mailboxes */
- memset(&(host->mb), 0, sizeof(host->mb));
-
- /* Execute init command */
- any2scsi((unchar *) & (init_cmd.mailboxes), (int) &(host->mb));
- if (!command_out(host, (unchar *) & init_cmd, sizeof(init_cmd))) {
- printk(KERN_ERR "wd7000_adapter_reset: adapter initialization failed.\n");
- return -1;
- }
-
- if (WAIT(host->iobase + ASC_STAT, ASC_STATMASK, ASC_INIT, 0)) {
- printk("wd7000_adapter_reset: WAIT timed out.\n");
- return -1;
- }
- return 0;
-}
-
-static int wd7000_init(Adapter * host)
-{
- if (wd7000_adapter_reset(host) == -1)
- return 0;
-
-
- if (request_irq(host->irq, wd7000_intr, 0, "wd7000", host)) {
- printk("wd7000_init: can't get IRQ %d.\n", host->irq);
- return (0);
- }
- if (request_dma(host->dma, "wd7000")) {
- printk("wd7000_init: can't get DMA channel %d.\n", host->dma);
- free_irq(host->irq, host);
- return (0);
- }
- wd7000_enable_dma(host);
- wd7000_enable_intr(host);
-
- if (!wd7000_diagnostics(host, ICB_DIAG_FULL)) {
- free_dma(host->dma);
- free_irq(host->irq, NULL);
- return (0);
- }
-
- return (1);
-}
-
-
-static void wd7000_revision(Adapter * host)
-{
- static IcbRevLvl icb = { ICB_OP_GET_REVISION };
-
- icb.phase = 1;
- /*
- * Like diagnostics, this is only done at init time, in fact, from
- * wd7000_detect, so there should be OGMBs available. If it fails,
- * the only damage will be that the revision will show up as 0.0,
- * which in turn means that scatter/gather will be disabled.
- */
- mail_out(host, (struct scb *) &icb);
- while (icb.phase) {
- cpu_relax(); /* wait for completion */
- barrier();
- }
- host->rev1 = icb.primary;
- host->rev2 = icb.secondary;
-}
-
-
-static int wd7000_set_info(struct Scsi_Host *host, char *buffer, int length)
-{
- dprintk("Buffer = <%.*s>, length = %d\n", length, buffer, length);
-
- /*
- * Currently this is a no-op
- */
- dprintk("Sorry, this function is currently out of order...\n");
- return (length);
-}
-
-
-static int wd7000_show_info(struct seq_file *m, struct Scsi_Host *host)
-{
- Adapter *adapter = (Adapter *)host->hostdata;
- unsigned long flags;
-#ifdef WD7000_DEBUG
- Mailbox *ogmbs, *icmbs;
- short count;
-#endif
-
- spin_lock_irqsave(host->host_lock, flags);
- seq_printf(m, "Host scsi%d: Western Digital WD-7000 (rev %d.%d)\n", host->host_no, adapter->rev1, adapter->rev2);
- seq_printf(m, " IO base: 0x%x\n", adapter->iobase);
- seq_printf(m, " IRQ: %d\n", adapter->irq);
- seq_printf(m, " DMA channel: %d\n", adapter->dma);
- seq_printf(m, " Interrupts: %d\n", adapter->int_counter);
- seq_printf(m, " BUS_ON time: %d nanoseconds\n", adapter->bus_on * 125);
- seq_printf(m, " BUS_OFF time: %d nanoseconds\n", adapter->bus_off * 125);
-
-#ifdef WD7000_DEBUG
- ogmbs = adapter->mb.ogmb;
- icmbs = adapter->mb.icmb;
-
- seq_printf(m, "\nControl port value: 0x%x\n", adapter->control);
- seq_puts(m, "Incoming mailbox:\n");
- seq_printf(m, " size: %d\n", ICMB_CNT);
- seq_puts(m, " queued messages: ");
-
- for (i = count = 0; i < ICMB_CNT; i++)
- if (icmbs[i].status) {
- count++;
- seq_printf(m, "0x%x ", i);
- }
-
- seq_puts(m, count ? "\n" : "none\n");
-
- seq_puts(m, "Outgoing mailbox:\n");
- seq_printf(m, " size: %d\n", OGMB_CNT);
- seq_printf(m, " next message: 0x%x\n", adapter->next_ogmb);
- seq_puts(m, " queued messages: ");
-
- for (i = count = 0; i < OGMB_CNT; i++)
- if (ogmbs[i].status) {
- count++;
- seq_printf(m, "0x%x ", i);
- }
-
- seq_puts(m, count ? "\n" : "none\n");
-#endif
-
- spin_unlock_irqrestore(host->host_lock, flags);
-
- return 0;
-}
-
-
-/*
- * Returns the number of adapters this driver is supporting.
- *
- * The source for hosts.c says to wait to call scsi_register until 100%
- * sure about an adapter. We need to do it a little sooner here; we
- * need the storage set up by scsi_register before wd7000_init, and
- * changing the location of an Adapter structure is more trouble than
- * calling scsi_unregister.
- *
- */
-
-static __init int wd7000_detect(struct scsi_host_template *tpnt)
-{
- short present = 0, biosaddr_ptr, sig_ptr, i, pass;
- short biosptr[NUM_CONFIGS];
- unsigned iobase;
- Adapter *host = NULL;
- struct Scsi_Host *sh;
- int unit = 0;
-
- dprintk("wd7000_detect: started\n");
-
-#ifdef MODULE
- if (wd7000)
- wd7000_setup(wd7000);
-#endif
-
- for (i = 0; i < UNITS; wd7000_host[i++] = NULL);
- for (i = 0; i < NUM_CONFIGS; biosptr[i++] = -1);
-
- tpnt->proc_name = "wd7000";
- tpnt->show_info = &wd7000_show_info;
- tpnt->write_info = wd7000_set_info;
-
- /*
- * Set up SCB free list, which is shared by all adapters
- */
- init_scbs();
-
- for (pass = 0; pass < NUM_CONFIGS; pass++) {
- /*
- * First, search for BIOS SIGNATURE...
- */
- for (biosaddr_ptr = 0; biosaddr_ptr < NUM_ADDRS; biosaddr_ptr++)
- for (sig_ptr = 0; sig_ptr < NUM_SIGNATURES; sig_ptr++) {
- for (i = 0; i < pass; i++)
- if (biosptr[i] == biosaddr_ptr)
- break;
-
- if (i == pass) {
- void __iomem *biosaddr = ioremap(wd7000_biosaddr[biosaddr_ptr] + signatures[sig_ptr].ofs,
- signatures[sig_ptr].len);
- short bios_match = 1;
-
- if (biosaddr)
- bios_match = check_signature(biosaddr, signatures[sig_ptr].sig, signatures[sig_ptr].len);
-
- iounmap(biosaddr);
-
- if (bios_match)
- goto bios_matched;
- }
- }
-
- bios_matched:
- /*
- * BIOS SIGNATURE has been found.
- */
-#ifdef WD7000_DEBUG
- dprintk("wd7000_detect: pass %d\n", pass + 1);
-
- if (biosaddr_ptr == NUM_ADDRS)
- dprintk("WD-7000 SST BIOS not detected...\n");
- else
- dprintk("WD-7000 SST BIOS detected at 0x%lx: checking...\n", wd7000_biosaddr[biosaddr_ptr]);
-#endif
-
- if (configs[pass].irq < 0)
- continue;
-
- if (unit == UNITS)
- continue;
-
- iobase = configs[pass].iobase;
-
- dprintk("wd7000_detect: check IO 0x%x region...\n", iobase);
-
- if (request_region(iobase, 4, "wd7000")) {
-
- dprintk("wd7000_detect: ASC reset (IO 0x%x) ...", iobase);
- /*
- * ASC reset...
- */
- outb(ASC_RES, iobase + ASC_CONTROL);
- msleep(10);
- outb(0, iobase + ASC_CONTROL);
-
- if (WAIT(iobase + ASC_STAT, ASC_STATMASK, CMD_RDY, 0)) {
- dprintk("failed!\n");
- goto err_release;
- } else
- dprintk("ok!\n");
-
- if (inb(iobase + ASC_INTR_STAT) == 1) {
- /*
- * We register here, to get a pointer to the extra space,
- * which we'll use as the Adapter structure (host) for
- * this adapter. It is located just after the registered
- * Scsi_Host structure (sh), and is located by the empty
- * array hostdata.
- */
- sh = scsi_register(tpnt, sizeof(Adapter));
- if (sh == NULL)
- goto err_release;
-
- host = (Adapter *) sh->hostdata;
-
- dprintk("wd7000_detect: adapter allocated at 0x%x\n", (int) host);
- memset(host, 0, sizeof(Adapter));
-
- host->irq = configs[pass].irq;
- host->dma = configs[pass].dma;
- host->iobase = iobase;
- host->int_counter = 0;
- host->bus_on = configs[pass].bus_on;
- host->bus_off = configs[pass].bus_off;
- host->sh = wd7000_host[unit] = sh;
- unit++;
-
- dprintk("wd7000_detect: Trying init WD-7000 card at IO " "0x%x, IRQ %d, DMA %d...\n", host->iobase, host->irq, host->dma);
-
- if (!wd7000_init(host)) /* Initialization failed */
- goto err_unregister;
-
- /*
- * OK from here - we'll use this adapter/configuration.
- */
- wd7000_revision(host); /* important for scatter/gather */
-
- /*
- * For boards before rev 6.0, scatter/gather isn't supported.
- */
- if (host->rev1 < 6)
- sh->sg_tablesize = 1;
-
- present++; /* count it */
-
- if (biosaddr_ptr != NUM_ADDRS)
- biosptr[pass] = biosaddr_ptr;
-
- printk(KERN_INFO "Western Digital WD-7000 (rev %d.%d) ", host->rev1, host->rev2);
- printk("using IO 0x%x, IRQ %d, DMA %d.\n", host->iobase, host->irq, host->dma);
- printk(" BUS_ON time: %dns, BUS_OFF time: %dns\n", host->bus_on * 125, host->bus_off * 125);
- }
- } else
- dprintk("wd7000_detect: IO 0x%x region already allocated!\n", iobase);
-
- continue;
-
- err_unregister:
- scsi_unregister(sh);
- err_release:
- release_region(iobase, 4);
-
- }
-
- if (!present)
- printk("Failed initialization of WD-7000 SCSI card!\n");
-
- return (present);
-}
-
-static int wd7000_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, NULL);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- scsi_unregister(shost);
- return 0;
-}
-
-#if 0
-/*
- * I have absolutely NO idea how to do an abort with the WD7000...
- */
-static int wd7000_abort(Scsi_Cmnd * SCpnt)
-{
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- if (inb(host->iobase + ASC_STAT) & INT_IM) {
- printk("wd7000_abort: lost interrupt\n");
- wd7000_intr_handle(host->irq, NULL, NULL);
- return FAILED;
- }
- return FAILED;
-}
-#endif
-
-/*
- * Last resort. Reinitialize the board.
- */
-
-static int wd7000_host_reset(struct scsi_cmnd *SCpnt)
-{
- Adapter *host = (Adapter *) SCpnt->device->host->hostdata;
-
- spin_lock_irq(SCpnt->device->host->host_lock);
-
- if (wd7000_adapter_reset(host) < 0) {
- spin_unlock_irq(SCpnt->device->host->host_lock);
- return FAILED;
- }
-
- wd7000_enable_intr(host);
-
- spin_unlock_irq(SCpnt->device->host->host_lock);
- return SUCCESS;
-}
-
-/*
- * This was borrowed directly from aha1542.c. (Zaga)
- */
-
-static int wd7000_biosparam(struct scsi_device *sdev,
- struct block_device *bdev, sector_t capacity, int *ip)
-{
- char b[BDEVNAME_SIZE];
-
- dprintk("wd7000_biosparam: dev=%s, size=%llu, ",
- bdevname(bdev, b), (u64)capacity);
- (void)b; /* unused var warning? */
-
- /*
- * try default translation
- */
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = capacity >> 11;
-
- /*
- * for disks >1GB do some guessing
- */
- if (ip[2] >= 1024) {
- int info[3];
-
- /*
- * try to figure out the geometry from the partition table
- */
- if ((scsicam_bios_param(bdev, capacity, info) < 0) || !(((info[0] == 64) && (info[1] == 32)) || ((info[0] == 255) && (info[1] == 63)))) {
- printk("wd7000_biosparam: unable to verify geometry for disk with >1GB.\n" " using extended translation.\n");
-
- ip[0] = 255;
- ip[1] = 63;
- ip[2] = (unsigned long) capacity / (255 * 63);
- } else {
- ip[0] = info[0];
- ip[1] = info[1];
- ip[2] = info[2];
-
- if (info[0] == 255)
- printk(KERN_INFO "%s: current partition table is " "using extended translation.\n", __func__);
- }
- }
-
- dprintk("bios geometry: head=%d, sec=%d, cyl=%d\n", ip[0], ip[1], ip[2]);
- dprintk("WARNING: check, if the bios geometry is correct.\n");
-
- return (0);
-}
-
-MODULE_AUTHOR("Thomas Wuensche, John Boyd, Miroslav Zagorac");
-MODULE_DESCRIPTION("Driver for the WD7000 series ISA controllers");
-MODULE_LICENSE("GPL");
-
-static struct scsi_host_template driver_template = {
- .proc_name = "wd7000",
- .show_info = wd7000_show_info,
- .write_info = wd7000_set_info,
- .name = "Western Digital WD-7000",
- .detect = wd7000_detect,
- .release = wd7000_release,
- .queuecommand = wd7000_queuecommand,
- .eh_host_reset_handler = wd7000_host_reset,
- .bios_param = wd7000_biosparam,
- .can_queue = WD7000_Q,
- .this_id = 7,
- .sg_tablesize = WD7000_SG,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-#include "scsi_module.c"
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 2/7] in2000: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
2016-09-19 15:50 ` [PATCH 1/7] wd7000: remove from tree Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 3/7] ultrastor: " Christoph Hellwig
` (6 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/00-INDEX | 2 -
Documentation/scsi/in2000.txt | 202 ---
Documentation/scsi/scsi-parameters.txt | 3 -
drivers/scsi/Kconfig | 12 -
drivers/scsi/Makefile | 1 -
drivers/scsi/in2000.c | 2302 --------------------------------
drivers/scsi/in2000.h | 412 ------
7 files changed, 2934 deletions(-)
delete mode 100644 Documentation/scsi/in2000.txt
delete mode 100644 drivers/scsi/in2000.c
delete mode 100644 drivers/scsi/in2000.h
diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX
index c4b978a..bb4a76f 100644
--- a/Documentation/scsi/00-INDEX
+++ b/Documentation/scsi/00-INDEX
@@ -64,8 +64,6 @@ hpsa.txt
- HP Smart Array Controller SCSI driver.
hptiop.txt
- HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
-in2000.txt
- - info on in2000 driver
libsas.txt
- Serial Attached SCSI management layer.
link_power_management_policy.txt
diff --git a/Documentation/scsi/in2000.txt b/Documentation/scsi/in2000.txt
deleted file mode 100644
index c3e2a90..0000000
--- a/Documentation/scsi/in2000.txt
+++ /dev/null
@@ -1,202 +0,0 @@
-
-UPDATE NEWS: version 1.33 - 26 Aug 98
-
- Interrupt management in this driver has become, over
- time, increasingly odd and difficult to explain - this
- has been mostly due to my own mental inadequacies. In
- recent kernels, it has failed to function at all when
- compiled for SMP. I've fixed that problem, and after
- taking a fresh look at interrupts in general, greatly
- reduced the number of places where they're fiddled
- with. Done some heavy testing and it looks very good.
- The driver now makes use of the __initfunc() and
- __initdata macros to save about 4k of kernel memory.
- Once again, the same code works for both 2.0.xx and
- 2.1.xx kernels.
-
-UPDATE NEWS: version 1.32 - 28 Mar 98
-
- Removed the check for legal IN2000 hardware versions:
- It appears that the driver works fine with serial
- EPROMs (the 8-pin chip that defines hardware rev) as
- old as 2.1, so we'll assume that all cards are OK.
-
-UPDATE NEWS: version 1.31 - 6 Jul 97
-
- Fixed a bug that caused incorrect SCSI status bytes to be
- returned from commands sent to LUNs greater than 0. This
- means that CDROM changers work now! Fixed a bug in the
- handling of command-line arguments when loaded as a module.
- Also put all the header data in in2000.h where it belongs.
- There are no longer any differences between this driver in
- the 2.1.xx source tree and the 2.0.xx tree, as of 2.0.31
- and 2.1.45 (or is it .46?) - this makes things much easier
- for me...
-
-UPDATE NEWS: version 1.30 - 14 Oct 96
-
- Fixed a bug in the code that sets the transfer direction
- bit (DESTID_DPD in the WD_DESTINATION_ID register). There
- are quite a few SCSI commands that do a write-to-device;
- now we deal with all of them correctly. Thanks to Joerg
- Dorchain for catching this one.
-
-UPDATE NEWS: version 1.29 - 24 Sep 96
-
- The memory-mapped hardware on the card is now accessed via
- the 'readb()' and 'readl()' macros - required by the new
- memory management scheme in the 2.1.x kernel series.
- As suggested by Andries Brouwer, 'bios_param()' no longer
- forces an artificial 1023 track limit on drives. Also
- removed some kludge-code left over from struggles with
- older (buggy) compilers.
-
-UPDATE NEWS: version 1.28 - 07 May 96
-
- Tightened up the "interrupts enabled/disabled" discipline
- in 'in2000_queuecommand()' and maybe 1 or 2 other places.
- I _think_ it may have been a little too lax, causing an
- occasional crash during full moon. A fully functional
- /proc interface is now in place - if you want to play
- with it, start by doing 'cat /proc/scsi/in2000/0'. You
- can also use it to change a few run-time parameters on
- the fly, but it's mostly for debugging. The curious
- should take a good look at 'in2000_proc_info()' in the
- in2000.c file to get an understanding of what it's all
- about; I figure that people who are really into it will
- want to add features suited to their own needs...
- Also, sync is now DISABLED by default.
-
-UPDATE NEWS: version 1.27 - 10 Apr 96
-
- Fixed a well-hidden bug in the adaptive-disconnect code
- that would show up every now and then during extreme
- heavy loads involving 2 or more simultaneously active
- devices. Thanks to Joe Mack for keeping my nose to the
- grindstone on this one.
-
-UPDATE NEWS: version 1.26 - 07 Mar 96
-
- 1.25 had a nasty bug that bit people with swap partitions
- and tape drives. Also, in my attempt to guess my way
- through Intel assembly language, I made an error in the
- inline code for IO writes. Made a few other changes and
- repairs - this version (fingers crossed) should work well.
-
-UPDATE NEWS: version 1.25 - 05 Mar 96
-
- Kernel 1.3.70 interrupt mods added; old kernels still OK.
- Big help from Bill Earnest and David Willmore on speed
- testing and optimizing: I think there's a real improvement
- in this area.
- New! User-friendly command-line interface for LILO and
- module loading - the old method is gone, so you'll need
- to read the comments for 'setup_strings' near the top
- of in2000.c. For people with CDROM's or other devices
- that have a tough time with sync negotiation, you can
- now selectively disable sync on individual devices -
- search for the 'nosync' keyword in the command-line
- comments. Some of you disable the BIOS on the card, which
- caused the auto-detect function to fail; there is now a
- command-line option to force detection of a ROM-less card.
-
-UPDATE NEWS: version 1.24a - 24 Feb 96
-
- There was a bug in the synchronous transfer code. Only
- a few people downloaded before I caught it - could have
- been worse.
-
-UPDATE NEWS: version 1.24 - 23 Feb 96
-
- Lots of good changes. Advice from Bill Earnest resulted
- in much better detection of cards, more efficient usage
- of the fifo, and (hopefully) faster data transfers. The
- jury is still out on speed - I hope it's improved some.
- One nifty new feature is a cool way of doing disconnect/
- reselect. The driver defaults to what I'm calling
- 'adaptive disconnect' - meaning that each command is
- evaluated individually as to whether or not it should be
- run with the option to disconnect/reselect (if the device
- chooses), or as a "SCSI-bus-hog". When several devices
- are operating simultaneously, disconnects are usually an
- advantage. In a single device system, or if only 1 device
- is being accessed, transfers usually go faster if disconnects
- are not allowed.
-
-
-
-The default arguments (you get these when you don't give an 'in2000'
-command-line argument, or you give a blank argument) will cause
-the driver to do adaptive disconnect, synchronous transfers, and a
-minimum of debug messages. If you want to fool with the options,
-search for 'setup_strings' near the top of the in2000.c file and
-check the 'hostdata->args' section in in2000.h - but be warned! Not
-everything is working yet (some things will never work, probably).
-I believe that disabling disconnects (DIS_NEVER) will allow you
-to choose a LEVEL2 value higher than 'L2_BASIC', but I haven't
-spent a lot of time testing this. You might try 'ENABLE_CLUSTERING'
-to see what happens: my tests showed little difference either way.
-There's also a define called 'DEFAULT_SX_PER'; this sets the data
-transfer speed for the asynchronous mode. I've put it at 500 ns
-despite the fact that the card could handle settings of 376 or
-252, because higher speeds may be a problem with poor quality
-cables or improper termination; 500 ns is a compromise. You can
-choose your own default through the command-line with the
-'period' keyword.
-
-
-------------------------------------------------
-*********** DIP switch settings **************
-------------------------------------------------
-
- sw1-1 sw1-2 BIOS address (hex)
- -----------------------------------------
- off off C8000 - CBFF0
- on off D8000 - DBFF0
- off on D0000 - D3FF0
- on on BIOS disabled
-
- sw1-3 sw1-4 IO port address (hex)
- ------------------------------------
- off off 220 - 22F
- on off 200 - 20F
- off on 110 - 11F
- on on 100 - 10F
-
- sw1-5 sw1-6 sw1-7 Interrupt
- ------------------------------
- off off off 15
- off on off 14
- off off on 11
- off on on 10
- on - - disabled
-
- sw1-8 function depends on BIOS version. In earlier versions this
- controlled synchronous data transfer support for MSDOS:
- off = disabled
- on = enabled
- In later ROMs (starting with 01.3 in April 1994) sw1-8 controls
- the "greater than 2 disk drive" feature that first appeared in
- MSDOS 5.0 (ignored by Linux):
- off = 2 drives maximum
- on = 7 drives maximum
-
- sw1-9 Floppy controller
- --------------------------
- off disabled
- on enabled
-
-------------------------------------------------
-
- I should mention that Drew Eckhardt's 'Generic NCR5380' sources
- were my main inspiration, with lots of reference to the IN2000
- driver currently distributed in the kernel source. I also owe
- much to a driver written by Hamish Macdonald for Linux-m68k(!).
- And to Eric Wright for being an ALPHA guinea pig. And to Bill
- Earnest for 2 tons of great input and information. And to David
- Willmore for extensive 'bonnie' testing. And to Joe Mack for
- continual testing and feedback.
-
-
- John Shifflett jshiffle@netcom.com
-
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 5a5c608..2135ff4 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -47,9 +47,6 @@ parameters may be changed at runtime by the command
gvp11= [HW,SCSI]
- in2000= [HW,SCSI]
- See header of drivers/scsi/in2000.c.
-
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 15c6e9f..543005b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -500,18 +500,6 @@ config SCSI_ADVANSYS
To compile this driver as a module, choose M here: the
module will be called advansys.
-config SCSI_IN2000
- tristate "Always IN2000 SCSI support"
- depends on ISA && SCSI
- help
- This is support for an ISA bus SCSI host adapter. You'll find more
- information in <file:Documentation/scsi/in2000.txt>. If it doesn't work
- out of the box, you may have to change the jumpers for IRQ or
- address selection.
-
- To compile this driver as a module, choose M here: the
- module will be called in2000.
-
config SCSI_ARCMSR
tristate "ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Adapter"
depends on PCI && SCSI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index d870cc5..07bf799 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -75,7 +75,6 @@ obj-$(CONFIG_SCSI_PM8001) += pm8001/
obj-$(CONFIG_SCSI_ISCI) += isci/
obj-$(CONFIG_SCSI_IPS) += ips.o
obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
-obj-$(CONFIG_SCSI_IN2000) += in2000.o
obj-$(CONFIG_SCSI_GENERIC_NCR5380) += g_NCR5380.o
obj-$(CONFIG_SCSI_GENERIC_NCR5380_MMIO) += g_NCR5380_mmio.o
obj-$(CONFIG_SCSI_NCR53C406A) += NCR53c406a.o
diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c
deleted file mode 100644
index 3882d9f..0000000
--- a/drivers/scsi/in2000.c
+++ /dev/null
@@ -1,2302 +0,0 @@
-/*
- * in2000.c - Linux device driver for the
- * Always IN2000 ISA SCSI card.
- *
- * Copyright (c) 1996 John Shifflett, GeoLog Consulting
- * john@geolog.com
- * jshiffle@netcom.com
- *
- * 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.
- *
- * For the avoidance of doubt the "preferred form" of this code is one which
- * is in an open non patent encumbered format. Where cryptographic key signing
- * forms part of the process of creating an executable the information
- * including keys needed to generate an equivalently functional executable
- * are deemed to be part of the source code.
- *
- * Drew Eckhardt's excellent 'Generic NCR5380' sources provided
- * much of the inspiration and some of the code for this driver.
- * The Linux IN2000 driver distributed in the Linux kernels through
- * version 1.2.13 was an extremely valuable reference on the arcane
- * (and still mysterious) workings of the IN2000's fifo. It also
- * is where I lifted in2000_biosparam(), the gist of the card
- * detection scheme, and other bits of code. Many thanks to the
- * talented and courageous people who wrote, contributed to, and
- * maintained that driver (including Brad McLean, Shaun Savage,
- * Bill Earnest, Larry Doolittle, Roger Sunshine, John Luckey,
- * Matt Postiff, Peter Lu, zerucha@shell.portal.com, and Eric
- * Youngdale). I should also mention the driver written by
- * Hamish Macdonald for the (GASP!) Amiga A2091 card, included
- * in the Linux-m68k distribution; it gave me a good initial
- * understanding of the proper way to run a WD33c93 chip, and I
- * ended up stealing lots of code from it.
- *
- * _This_ driver is (I feel) an improvement over the old one in
- * several respects:
- * - All problems relating to the data size of a SCSI request are
- * gone (as far as I know). The old driver couldn't handle
- * swapping to partitions because that involved 4k blocks, nor
- * could it deal with the st.c tape driver unmodified, because
- * that usually involved 4k - 32k blocks. The old driver never
- * quite got away from a morbid dependence on 2k block sizes -
- * which of course is the size of the card's fifo.
- *
- * - Target Disconnection/Reconnection is now supported. Any
- * system with more than one device active on the SCSI bus
- * will benefit from this. The driver defaults to what I'm
- * calling 'adaptive disconnect' - meaning that each command
- * is evaluated individually as to whether or not it should
- * be run with the option to disconnect/reselect (if the
- * device chooses), or as a "SCSI-bus-hog".
- *
- * - Synchronous data transfers are now supported. Because there
- * are a few devices (and many improperly terminated systems)
- * that choke when doing sync, the default is sync DISABLED
- * for all devices. This faster protocol can (and should!)
- * be enabled on selected devices via the command-line.
- *
- * - Runtime operating parameters can now be specified through
- * either the LILO or the 'insmod' command line. For LILO do:
- * "in2000=blah,blah,blah"
- * and with insmod go like:
- * "insmod /usr/src/linux/modules/in2000.o setup_strings=blah,blah"
- * The defaults should be good for most people. See the comment
- * for 'setup_strings' below for more details.
- *
- * - The old driver relied exclusively on what the Western Digital
- * docs call "Combination Level 2 Commands", which are a great
- * idea in that the CPU is relieved of a lot of interrupt
- * overhead. However, by accepting a certain (user-settable)
- * amount of additional interrupts, this driver achieves
- * better control over the SCSI bus, and data transfers are
- * almost as fast while being much easier to define, track,
- * and debug.
- *
- * - You can force detection of a card whose BIOS has been disabled.
- *
- * - Multiple IN2000 cards might almost be supported. I've tried to
- * keep it in mind, but have no way to test...
- *
- *
- * TODO:
- * tagged queuing. multiple cards.
- *
- *
- * NOTE:
- * When using this or any other SCSI driver as a module, you'll
- * find that with the stock kernel, at most _two_ SCSI hard
- * drives will be linked into the device list (ie, usable).
- * If your IN2000 card has more than 2 disks on its bus, you
- * might want to change the define of 'SD_EXTRA_DEVS' in the
- * 'hosts.h' file from 2 to whatever is appropriate. It took
- * me a while to track down this surprisingly obscure and
- * undocumented little "feature".
- *
- *
- * People with bug reports, wish-lists, complaints, comments,
- * or improvements are asked to pah-leeez email me (John Shifflett)
- * at john@geolog.com or jshiffle@netcom.com! I'm anxious to get
- * this thing into as good a shape as possible, and I'm positive
- * there are lots of lurking bugs and "Stupid Places".
- *
- * Updated for Linux 2.5 by Alan Cox <alan@lxorguk.ukuu.org.uk>
- * - Using new_eh handler
- * - Hopefully got all the locking right again
- * See "FIXME" notes for items that could do with more work
- */
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/ioport.h>
-#include <linux/stat.h>
-
-#include <asm/io.h>
-
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-
-#define IN2000_VERSION "1.33-2.5"
-#define IN2000_DATE "2002/11/03"
-
-#include "in2000.h"
-
-
-/*
- * 'setup_strings' is a single string used to pass operating parameters and
- * settings from the kernel/module command-line to the driver. 'setup_args[]'
- * is an array of strings that define the compile-time default values for
- * these settings. If Linux boots with a LILO or insmod command-line, those
- * settings are combined with 'setup_args[]'. Note that LILO command-lines
- * are prefixed with "in2000=" while insmod uses a "setup_strings=" prefix.
- * The driver recognizes the following keywords (lower case required) and
- * arguments:
- *
- * - ioport:addr -Where addr is IO address of a (usually ROM-less) card.
- * - noreset -No optional args. Prevents SCSI bus reset at boot time.
- * - nosync:x -x is a bitmask where the 1st 7 bits correspond with
- * the 7 possible SCSI devices (bit 0 for device #0, etc).
- * Set a bit to PREVENT sync negotiation on that device.
- * The driver default is sync DISABLED on all devices.
- * - period:ns -ns is the minimum # of nanoseconds in a SCSI data transfer
- * period. Default is 500; acceptable values are 250 - 1000.
- * - disconnect:x -x = 0 to never allow disconnects, 2 to always allow them.
- * x = 1 does 'adaptive' disconnects, which is the default
- * and generally the best choice.
- * - debug:x -If 'DEBUGGING_ON' is defined, x is a bitmask that causes
- * various types of debug output to printed - see the DB_xxx
- * defines in in2000.h
- * - proc:x -If 'PROC_INTERFACE' is defined, x is a bitmask that
- * determines how the /proc interface works and what it
- * does - see the PR_xxx defines in in2000.h
- *
- * Syntax Notes:
- * - Numeric arguments can be decimal or the '0x' form of hex notation. There
- * _must_ be a colon between a keyword and its numeric argument, with no
- * spaces.
- * - Keywords are separated by commas, no spaces, in the standard kernel
- * command-line manner.
- * - A keyword in the 'nth' comma-separated command-line member will overwrite
- * the 'nth' element of setup_args[]. A blank command-line member (in
- * other words, a comma with no preceding keyword) will _not_ overwrite
- * the corresponding setup_args[] element.
- *
- * A few LILO examples (for insmod, use 'setup_strings' instead of 'in2000'):
- * - in2000=ioport:0x220,noreset
- * - in2000=period:250,disconnect:2,nosync:0x03
- * - in2000=debug:0x1e
- * - in2000=proc:3
- */
-
-/* Normally, no defaults are specified... */
-static char *setup_args[] = { "", "", "", "", "", "", "", "", "" };
-
-/* filled in by 'insmod' */
-static char *setup_strings;
-
-module_param(setup_strings, charp, 0);
-
-static inline uchar read_3393(struct IN2000_hostdata *hostdata, uchar reg_num)
-{
- write1_io(reg_num, IO_WD_ADDR);
- return read1_io(IO_WD_DATA);
-}
-
-
-#define READ_AUX_STAT() read1_io(IO_WD_ASR)
-
-
-static inline void write_3393(struct IN2000_hostdata *hostdata, uchar reg_num, uchar value)
-{
- write1_io(reg_num, IO_WD_ADDR);
- write1_io(value, IO_WD_DATA);
-}
-
-
-static inline void write_3393_cmd(struct IN2000_hostdata *hostdata, uchar cmd)
-{
-/* while (READ_AUX_STAT() & ASR_CIP)
- printk("|");*/
- write1_io(WD_COMMAND, IO_WD_ADDR);
- write1_io(cmd, IO_WD_DATA);
-}
-
-
-static uchar read_1_byte(struct IN2000_hostdata *hostdata)
-{
- uchar asr, x = 0;
-
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO | 0x80);
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- x = read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT));
- return x;
-}
-
-
-static void write_3393_count(struct IN2000_hostdata *hostdata, unsigned long value)
-{
- write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
- write1_io((value >> 16), IO_WD_DATA);
- write1_io((value >> 8), IO_WD_DATA);
- write1_io(value, IO_WD_DATA);
-}
-
-
-static unsigned long read_3393_count(struct IN2000_hostdata *hostdata)
-{
- unsigned long value;
-
- write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
- value = read1_io(IO_WD_DATA) << 16;
- value |= read1_io(IO_WD_DATA) << 8;
- value |= read1_io(IO_WD_DATA);
- return value;
-}
-
-
-/* The 33c93 needs to be told which direction a command transfers its
- * data; we use this function to figure it out. Returns true if there
- * will be a DATA_OUT phase with this command, false otherwise.
- * (Thanks to Joerg Dorchain for the research and suggestion.)
- */
-static int is_dir_out(Scsi_Cmnd * cmd)
-{
- switch (cmd->cmnd[0]) {
- case WRITE_6:
- case WRITE_10:
- case WRITE_12:
- case WRITE_LONG:
- case WRITE_SAME:
- case WRITE_BUFFER:
- case WRITE_VERIFY:
- case WRITE_VERIFY_12:
- case COMPARE:
- case COPY:
- case COPY_VERIFY:
- case SEARCH_EQUAL:
- case SEARCH_HIGH:
- case SEARCH_LOW:
- case SEARCH_EQUAL_12:
- case SEARCH_HIGH_12:
- case SEARCH_LOW_12:
- case FORMAT_UNIT:
- case REASSIGN_BLOCKS:
- case RESERVE:
- case MODE_SELECT:
- case MODE_SELECT_10:
- case LOG_SELECT:
- case SEND_DIAGNOSTIC:
- case CHANGE_DEFINITION:
- case UPDATE_BLOCK:
- case SET_WINDOW:
- case MEDIUM_SCAN:
- case SEND_VOLUME_TAG:
- case 0xea:
- return 1;
- default:
- return 0;
- }
-}
-
-
-
-static struct sx_period sx_table[] = {
- {1, 0x20},
- {252, 0x20},
- {376, 0x30},
- {500, 0x40},
- {624, 0x50},
- {752, 0x60},
- {876, 0x70},
- {1000, 0x00},
- {0, 0}
-};
-
-static int round_period(unsigned int period)
-{
- int x;
-
- for (x = 1; sx_table[x].period_ns; x++) {
- if ((period <= sx_table[x - 0].period_ns) && (period > sx_table[x - 1].period_ns)) {
- return x;
- }
- }
- return 7;
-}
-
-static uchar calc_sync_xfer(unsigned int period, unsigned int offset)
-{
- uchar result;
-
- period *= 4; /* convert SDTR code to ns */
- result = sx_table[round_period(period)].reg_value;
- result |= (offset < OPTIMUM_SX_OFF) ? offset : OPTIMUM_SX_OFF;
- return result;
-}
-
-
-
-static void in2000_execute(struct Scsi_Host *instance);
-
-static int in2000_queuecommand_lck(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *tmp;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- DB(DB_QUEUE_COMMAND, scmd_printk(KERN_DEBUG, cmd, "Q-%02x(", cmd->cmnd[0]))
-
-/* Set up a few fields in the Scsi_Cmnd structure for our own use:
- * - host_scribble is the pointer to the next cmd in the input queue
- * - scsi_done points to the routine we call when a cmd is finished
- * - result is what you'd expect
- */
- cmd->host_scribble = NULL;
- cmd->scsi_done = done;
- cmd->result = 0;
-
-/* We use the Scsi_Pointer structure that's included with each command
- * as a scratchpad (as it's intended to be used!). The handy thing about
- * the SCp.xxx fields is that they're always associated with a given
- * cmd, and are preserved across disconnect-reselect. This means we
- * can pretty much ignore SAVE_POINTERS and RESTORE_POINTERS messages
- * if we keep all the critical pointers and counters in SCp:
- * - SCp.ptr is the pointer into the RAM buffer
- * - SCp.this_residual is the size of that buffer
- * - SCp.buffer points to the current scatter-gather buffer
- * - SCp.buffers_residual tells us how many S.G. buffers there are
- * - SCp.have_data_in helps keep track of >2048 byte transfers
- * - SCp.sent_command is not used
- * - SCp.phase records this command's SRCID_ER bit setting
- */
-
- if (scsi_bufflen(cmd)) {
- cmd->SCp.buffer = scsi_sglist(cmd);
- cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- } else {
- cmd->SCp.buffer = NULL;
- cmd->SCp.buffers_residual = 0;
- cmd->SCp.ptr = NULL;
- cmd->SCp.this_residual = 0;
- }
- cmd->SCp.have_data_in = 0;
-
-/* We don't set SCp.phase here - that's done in in2000_execute() */
-
-/* WD docs state that at the conclusion of a "LEVEL2" command, the
- * status byte can be retrieved from the LUN register. Apparently,
- * this is the case only for *uninterrupted* LEVEL2 commands! If
- * there are any unexpected phases entered, even if they are 100%
- * legal (different devices may choose to do things differently),
- * the LEVEL2 command sequence is exited. This often occurs prior
- * to receiving the status byte, in which case the driver does a
- * status phase interrupt and gets the status byte on its own.
- * While such a command can then be "resumed" (ie restarted to
- * finish up as a LEVEL2 command), the LUN register will NOT be
- * a valid status byte at the command's conclusion, and we must
- * use the byte obtained during the earlier interrupt. Here, we
- * preset SCp.Status to an illegal value (0xff) so that when
- * this command finally completes, we can tell where the actual
- * status byte is stored.
- */
-
- cmd->SCp.Status = ILLEGAL_STATUS_BYTE;
-
-/* We need to disable interrupts before messing with the input
- * queue and calling in2000_execute().
- */
-
- /*
- * Add the cmd to the end of 'input_Q'. Note that REQUEST_SENSE
- * commands are added to the head of the queue so that the desired
- * sense data is not lost before REQUEST_SENSE executes.
- */
-
- if (!(hostdata->input_Q) || (cmd->cmnd[0] == REQUEST_SENSE)) {
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- } else { /* find the end of the queue */
- for (tmp = (Scsi_Cmnd *) hostdata->input_Q; tmp->host_scribble; tmp = (Scsi_Cmnd *) tmp->host_scribble);
- tmp->host_scribble = (uchar *) cmd;
- }
-
-/* We know that there's at least one command in 'input_Q' now.
- * Go see if any of them are runnable!
- */
-
- in2000_execute(cmd->device->host);
-
- DB(DB_QUEUE_COMMAND, printk(")Q "))
- return 0;
-}
-
-static DEF_SCSI_QCMD(in2000_queuecommand)
-
-
-
-/*
- * This routine attempts to start a scsi command. If the host_card is
- * already connected, we give up immediately. Otherwise, look through
- * the input_Q, using the first command we find that's intended
- * for a currently non-busy target/lun.
- * Note that this function is always called with interrupts already
- * disabled (either from in2000_queuecommand() or in2000_intr()).
- */
-static void in2000_execute(struct Scsi_Host *instance)
-{
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *cmd, *prev;
- int i;
- unsigned short *sp;
- unsigned short f;
- unsigned short flushbuf[16];
-
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- DB(DB_EXECUTE, printk("EX("))
-
- if (hostdata->selecting || hostdata->connected) {
-
- DB(DB_EXECUTE, printk(")EX-0 "))
-
- return;
- }
-
- /*
- * Search through the input_Q for a command destined
- * for an idle target/lun.
- */
-
- cmd = (Scsi_Cmnd *) hostdata->input_Q;
- prev = NULL;
- while (cmd) {
- if (!(hostdata->busy[cmd->device->id] & (1 << cmd->device->lun)))
- break;
- prev = cmd;
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
-
- /* quit if queue empty or all possible targets are busy */
-
- if (!cmd) {
-
- DB(DB_EXECUTE, printk(")EX-1 "))
-
- return;
- }
-
- /* remove command from queue */
-
- if (prev)
- prev->host_scribble = cmd->host_scribble;
- else
- hostdata->input_Q = (Scsi_Cmnd *) cmd->host_scribble;
-
-#ifdef PROC_STATISTICS
- hostdata->cmd_cnt[cmd->device->id]++;
-#endif
-
-/*
- * Start the selection process
- */
-
- if (is_dir_out(cmd))
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
- else
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
-
-/* Now we need to figure out whether or not this command is a good
- * candidate for disconnect/reselect. We guess to the best of our
- * ability, based on a set of hierarchical rules. When several
- * devices are operating simultaneously, disconnects are usually
- * an advantage. In a single device system, or if only 1 device
- * is being accessed, transfers usually go faster if disconnects
- * are not allowed:
- *
- * + Commands should NEVER disconnect if hostdata->disconnect =
- * DIS_NEVER (this holds for tape drives also), and ALWAYS
- * disconnect if hostdata->disconnect = DIS_ALWAYS.
- * + Tape drive commands should always be allowed to disconnect.
- * + Disconnect should be allowed if disconnected_Q isn't empty.
- * + Commands should NOT disconnect if input_Q is empty.
- * + Disconnect should be allowed if there are commands in input_Q
- * for a different target/lun. In this case, the other commands
- * should be made disconnect-able, if not already.
- *
- * I know, I know - this code would flunk me out of any
- * "C Programming 101" class ever offered. But it's easy
- * to change around and experiment with for now.
- */
-
- cmd->SCp.phase = 0; /* assume no disconnect */
- if (hostdata->disconnect == DIS_NEVER)
- goto no;
- if (hostdata->disconnect == DIS_ALWAYS)
- goto yes;
- if (cmd->device->type == 1) /* tape drive? */
- goto yes;
- if (hostdata->disconnected_Q) /* other commands disconnected? */
- goto yes;
- if (!(hostdata->input_Q)) /* input_Q empty? */
- goto no;
- for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble) {
- if ((prev->device->id != cmd->device->id) || (prev->device->lun != cmd->device->lun)) {
- for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble)
- prev->SCp.phase = 1;
- goto yes;
- }
- }
- goto no;
-
- yes:
- cmd->SCp.phase = 1;
-
-#ifdef PROC_STATISTICS
- hostdata->disc_allowed_cnt[cmd->device->id]++;
-#endif
-
- no:
- write_3393(hostdata, WD_SOURCE_ID, ((cmd->SCp.phase) ? SRCID_ER : 0));
-
- write_3393(hostdata, WD_TARGET_LUN, cmd->device->lun);
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
- hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
-
- if ((hostdata->level2 <= L2_NONE) || (hostdata->sync_stat[cmd->device->id] == SS_UNSET)) {
-
- /*
- * Do a 'Select-With-ATN' command. This will end with
- * one of the following interrupts:
- * CSR_RESEL_AM: failure - can try again later.
- * CSR_TIMEOUT: failure - give up.
- * CSR_SELECT: success - proceed.
- */
-
- hostdata->selecting = cmd;
-
-/* Every target has its own synchronous transfer setting, kept in
- * the sync_xfer array, and a corresponding status byte in sync_stat[].
- * Each target's sync_stat[] entry is initialized to SS_UNSET, and its
- * sync_xfer[] entry is initialized to the default/safe value. SS_UNSET
- * means that the parameters are undetermined as yet, and that we
- * need to send an SDTR message to this device after selection is
- * complete. We set SS_FIRST to tell the interrupt routine to do so,
- * unless we don't want to even _try_ synchronous transfers: In this
- * case we set SS_SET to make the defaults final.
- */
- if (hostdata->sync_stat[cmd->device->id] == SS_UNSET) {
- if (hostdata->sync_off & (1 << cmd->device->id))
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- else
- hostdata->sync_stat[cmd->device->id] = SS_FIRST;
- }
- hostdata->state = S_SELECTING;
- write_3393_count(hostdata, 0); /* this guarantees a DATA_PHASE interrupt */
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN);
- }
-
- else {
-
- /*
- * Do a 'Select-With-ATN-Xfer' command. This will end with
- * one of the following interrupts:
- * CSR_RESEL_AM: failure - can try again later.
- * CSR_TIMEOUT: failure - give up.
- * anything else: success - proceed.
- */
-
- hostdata->connected = cmd;
- write_3393(hostdata, WD_COMMAND_PHASE, 0);
-
- /* copy command_descriptor_block into WD chip
- * (take advantage of auto-incrementing)
- */
-
- write1_io(WD_CDB_1, IO_WD_ADDR);
- for (i = 0; i < cmd->cmd_len; i++)
- write1_io(cmd->cmnd[i], IO_WD_DATA);
-
- /* The wd33c93 only knows about Group 0, 1, and 5 commands when
- * it's doing a 'select-and-transfer'. To be safe, we write the
- * size of the CDB into the OWN_ID register for every case. This
- * way there won't be problems with vendor-unique, audio, etc.
- */
-
- write_3393(hostdata, WD_OWN_ID, cmd->cmd_len);
-
- /* When doing a non-disconnect command, we can save ourselves a DATA
- * phase interrupt later by setting everything up now. With writes we
- * need to pre-fill the fifo; if there's room for the 32 flush bytes,
- * put them in there too - that'll avoid a fifo interrupt. Reads are
- * somewhat simpler.
- * KLUDGE NOTE: It seems that you can't completely fill the fifo here:
- * This results in the IO_FIFO_COUNT register rolling over to zero,
- * and apparently the gate array logic sees this as empty, not full,
- * so the 3393 chip is never signalled to start reading from the
- * fifo. Or maybe it's seen as a permanent fifo interrupt condition.
- * Regardless, we fix this by temporarily pretending that the fifo
- * is 16 bytes smaller. (I see now that the old driver has a comment
- * about "don't fill completely" in an analogous place - must be the
- * same deal.) This results in CDROM, swap partitions, and tape drives
- * needing an extra interrupt per write command - I think we can live
- * with that!
- */
-
- if (!(cmd->SCp.phase)) {
- write_3393_count(hostdata, cmd->SCp.this_residual);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter, write mode */
-
- if (is_dir_out(cmd)) {
- hostdata->fifo = FI_FIFO_WRITING;
- if ((i = cmd->SCp.this_residual) > (IN2000_FIFO_SIZE - 16))
- i = IN2000_FIFO_SIZE - 16;
- cmd->SCp.have_data_in = i; /* this much data in fifo */
- i >>= 1; /* Gulp. Assuming modulo 2. */
- sp = (unsigned short *) cmd->SCp.ptr;
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(*sp++, IO_FIFO);
-
-#endif
-
- /* Is there room for the flush bytes? */
-
- if (cmd->SCp.have_data_in <= ((IN2000_FIFO_SIZE - 16) - 32)) {
- sp = flushbuf;
- i = 16;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(0, IO_FIFO);
-
-#endif
-
- }
- }
-
- else {
- write1_io(0, IO_FIFO_READ); /* put fifo in read mode */
- hostdata->fifo = FI_FIFO_READING;
- cmd->SCp.have_data_in = 0; /* nothing transferred yet */
- }
-
- } else {
- write_3393_count(hostdata, 0); /* this guarantees a DATA_PHASE interrupt */
- }
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- }
-
- /*
- * Since the SCSI bus can handle only 1 connection at a time,
- * we get out of here now. If the selection fails, or when
- * the command disconnects, we'll come back to this routine
- * to search the input_Q again...
- */
-
- DB(DB_EXECUTE, printk("%s)EX-2 ", (cmd->SCp.phase) ? "d:" : ""))
-
-}
-
-
-
-static void transfer_pio(uchar * buf, int cnt, int data_in_dir, struct IN2000_hostdata *hostdata)
-{
- uchar asr;
-
- DB(DB_TRANSFER, printk("(%p,%d,%s)", buf, cnt, data_in_dir ? "in" : "out"))
-
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_count(hostdata, cnt);
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- if (data_in_dir) {
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- *buf++ = read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT));
- } else {
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- write_3393(hostdata, WD_DATA, *buf++);
- } while (!(asr & ASR_INT));
- }
-
- /* Note: we are returning with the interrupt UN-cleared.
- * Since (presumably) an entire I/O operation has
- * completed, the bus phase is probably different, and
- * the interrupt routine will discover this when it
- * responds to the uncleared int.
- */
-
-}
-
-
-
-static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir)
-{
- struct IN2000_hostdata *hostdata;
- unsigned short *sp;
- unsigned short f;
- int i;
-
- hostdata = (struct IN2000_hostdata *) cmd->device->host->hostdata;
-
-/* Normally, you'd expect 'this_residual' to be non-zero here.
- * In a series of scatter-gather transfers, however, this
- * routine will usually be called with 'this_residual' equal
- * to 0 and 'buffers_residual' non-zero. This means that a
- * previous transfer completed, clearing 'this_residual', and
- * now we need to setup the next scatter-gather buffer as the
- * source or destination for THIS transfer.
- */
- if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
- ++cmd->SCp.buffer;
- --cmd->SCp.buffers_residual;
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- }
-
-/* Set up hardware registers */
-
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
- write_3393_count(hostdata, cmd->SCp.this_residual);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
- write1_io(0, IO_FIFO_WRITE); /* zero counter, assume write */
-
-/* Reading is easy. Just issue the command and return - we'll
- * get an interrupt later when we have actual data to worry about.
- */
-
- if (data_in_dir) {
- write1_io(0, IO_FIFO_READ);
- if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- hostdata->fifo = FI_FIFO_READING;
- cmd->SCp.have_data_in = 0;
- return;
- }
-
-/* Writing is more involved - we'll start the WD chip and write as
- * much data to the fifo as we can right now. Later interrupts will
- * write any bytes that don't make it at this stage.
- */
-
- if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
- hostdata->fifo = FI_FIFO_WRITING;
- sp = (unsigned short *) cmd->SCp.ptr;
-
- if ((i = cmd->SCp.this_residual) > IN2000_FIFO_SIZE)
- i = IN2000_FIFO_SIZE;
- cmd->SCp.have_data_in = i;
- i >>= 1; /* Gulp. We assume this_residual is modulo 2 */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_WRITE_IO
-
- FAST_WRITE2_IO();
-#else
- while (i--)
- write2_io(*sp++, IO_FIFO);
-
-#endif
-
-}
-
-
-/* We need to use spin_lock_irqsave() & spin_unlock_irqrestore() in this
- * function in order to work in an SMP environment. (I'd be surprised
- * if the driver is ever used by anyone on a real multi-CPU motherboard,
- * but it _does_ need to be able to compile and run in an SMP kernel.)
- */
-
-static irqreturn_t in2000_intr(int irqnum, void *dev_id)
-{
- struct Scsi_Host *instance = dev_id;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *patch, *cmd;
- uchar asr, sr, phs, id, lun, *ucp, msg;
- int i, j;
- unsigned long length;
- unsigned short *sp;
- unsigned short f;
- unsigned long flags;
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
-/* Get the spin_lock and disable further ints, for SMP */
-
- spin_lock_irqsave(instance->host_lock, flags);
-
-#ifdef PROC_STATISTICS
- hostdata->int_cnt++;
-#endif
-
-/* The IN2000 card has 2 interrupt sources OR'ed onto its IRQ line - the
- * WD3393 chip and the 2k fifo (which is actually a dual-port RAM combined
- * with a big logic array, so it's a little different than what you might
- * expect). As far as I know, there's no reason that BOTH can't be active
- * at the same time, but there's a problem: while we can read the 3393
- * to tell if _it_ wants an interrupt, I don't know of a way to ask the
- * fifo the same question. The best we can do is check the 3393 and if
- * it _isn't_ the source of the interrupt, then we can be pretty sure
- * that the fifo is the culprit.
- * UPDATE: I have it on good authority (Bill Earnest) that bit 0 of the
- * IO_FIFO_COUNT register mirrors the fifo interrupt state. I
- * assume that bit clear means interrupt active. As it turns
- * out, the driver really doesn't need to check for this after
- * all, so my remarks above about a 'problem' can safely be
- * ignored. The way the logic is set up, there's no advantage
- * (that I can see) to worrying about it.
- *
- * It seems that the fifo interrupt signal is negated when we extract
- * bytes during read or write bytes during write.
- * - fifo will interrupt when data is moving from it to the 3393, and
- * there are 31 (or less?) bytes left to go. This is sort of short-
- * sighted: what if you don't WANT to do more? In any case, our
- * response is to push more into the fifo - either actual data or
- * dummy bytes if need be. Note that we apparently have to write at
- * least 32 additional bytes to the fifo after an interrupt in order
- * to get it to release the ones it was holding on to - writing fewer
- * than 32 will result in another fifo int.
- * UPDATE: Again, info from Bill Earnest makes this more understandable:
- * 32 bytes = two counts of the fifo counter register. He tells
- * me that the fifo interrupt is a non-latching signal derived
- * from a straightforward boolean interpretation of the 7
- * highest bits of the fifo counter and the fifo-read/fifo-write
- * state. Who'd a thought?
- */
-
- write1_io(0, IO_LED_ON);
- asr = READ_AUX_STAT();
- if (!(asr & ASR_INT)) { /* no WD33c93 interrupt? */
-
-/* Ok. This is definitely a FIFO-only interrupt.
- *
- * If FI_FIFO_READING is set, there are up to 2048 bytes waiting to be read,
- * maybe more to come from the SCSI bus. Read as many as we can out of the
- * fifo and into memory at the location of SCp.ptr[SCp.have_data_in], and
- * update have_data_in afterwards.
- *
- * If we have FI_FIFO_WRITING, the FIFO has almost run out of bytes to move
- * into the WD3393 chip (I think the interrupt happens when there are 31
- * bytes left, but it may be fewer...). The 3393 is still waiting, so we
- * shove some more into the fifo, which gets things moving again. If the
- * original SCSI command specified more than 2048 bytes, there may still
- * be some of that data left: fine - use it (from SCp.ptr[SCp.have_data_in]).
- * Don't forget to update have_data_in. If we've already written out the
- * entire buffer, feed 32 dummy bytes to the fifo - they're needed to
- * push out the remaining real data.
- * (Big thanks to Bill Earnest for getting me out of the mud in here.)
- */
-
- cmd = (Scsi_Cmnd *) hostdata->connected; /* assume we're connected */
- CHECK_NULL(cmd, "fifo_int")
-
- if (hostdata->fifo == FI_FIFO_READING) {
-
- DB(DB_FIFO, printk("{R:%02x} ", read1_io(IO_FIFO_COUNT)))
-
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i = read1_io(IO_FIFO_COUNT) & 0xfe;
- i <<= 2; /* # of words waiting in the fifo */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_READ_IO
-
- FAST_READ2_IO();
-#else
- while (i--)
- *sp++ = read2_io(IO_FIFO);
-
-#endif
-
- i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i <<= 1;
- cmd->SCp.have_data_in += i;
- }
-
- else if (hostdata->fifo == FI_FIFO_WRITING) {
-
- DB(DB_FIFO, printk("{W:%02x} ", read1_io(IO_FIFO_COUNT)))
-
-/* If all bytes have been written to the fifo, flush out the stragglers.
- * Note that while writing 16 dummy words seems arbitrary, we don't
- * have another choice that I can see. What we really want is to read
- * the 3393 transfer count register (that would tell us how many bytes
- * needed flushing), but the TRANSFER_INFO command hasn't completed
- * yet (not enough bytes!) and that register won't be accessible. So,
- * we use 16 words - a number obtained through trial and error.
- * UPDATE: Bill says this is exactly what Always does, so there.
- * More thanks due him for help in this section.
- */
- if (cmd->SCp.this_residual == cmd->SCp.have_data_in) {
- i = 16;
- while (i--) /* write 32 dummy bytes */
- write2_io(0, IO_FIFO);
- }
-
-/* If there are still bytes left in the SCSI buffer, write as many as we
- * can out to the fifo.
- */
-
- else {
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i = cmd->SCp.this_residual - cmd->SCp.have_data_in; /* bytes yet to go */
- j = read1_io(IO_FIFO_COUNT) & 0xfe;
- j <<= 2; /* how many words the fifo has room for */
- if ((j << 1) > i)
- j = (i >> 1);
- while (j--)
- write2_io(*sp++, IO_FIFO);
-
- i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
- i <<= 1;
- cmd->SCp.have_data_in += i;
- }
- }
-
- else {
- printk("*** Spurious FIFO interrupt ***");
- }
-
- write1_io(0, IO_LED_OFF);
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
-
-/* This interrupt was triggered by the WD33c93 chip. The fifo interrupt
- * may also be asserted, but we don't bother to check it: we get more
- * detailed info from FIFO_READING and FIFO_WRITING (see below).
- */
-
- cmd = (Scsi_Cmnd *) hostdata->connected; /* assume we're connected */
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear the interrupt */
- phs = read_3393(hostdata, WD_COMMAND_PHASE);
-
- if (!cmd && (sr != CSR_RESEL_AM && sr != CSR_TIMEOUT && sr != CSR_SELECT)) {
- printk("\nNR:wd-intr-1\n");
- write1_io(0, IO_LED_OFF);
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
-
- DB(DB_INTR, printk("{%02x:%02x-", asr, sr))
-
-/* After starting a FIFO-based transfer, the next _WD3393_ interrupt is
- * guaranteed to be in response to the completion of the transfer.
- * If we were reading, there's probably data in the fifo that needs
- * to be copied into RAM - do that here. Also, we have to update
- * 'this_residual' and 'ptr' based on the contents of the
- * TRANSFER_COUNT register, in case the device decided to do an
- * intermediate disconnect (a device may do this if it has to
- * do a seek, or just to be nice and let other devices have
- * some bus time during long transfers).
- * After doing whatever is necessary with the fifo, we go on and
- * service the WD3393 interrupt normally.
- */
- if (hostdata->fifo == FI_FIFO_READING) {
-
-/* buffer index = start-of-buffer + #-of-bytes-already-read */
-
- sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
-
-/* bytes remaining in fifo = (total-wanted - #-not-got) - #-already-read */
-
- i = (cmd->SCp.this_residual - read_3393_count(hostdata)) - cmd->SCp.have_data_in;
- i >>= 1; /* Gulp. We assume this will always be modulo 2 */
- f = hostdata->io_base + IO_FIFO;
-
-#ifdef FAST_READ_IO
-
- FAST_READ2_IO();
-#else
- while (i--)
- *sp++ = read2_io(IO_FIFO);
-
-#endif
-
- hostdata->fifo = FI_FIFO_UNUSED;
- length = cmd->SCp.this_residual;
- cmd->SCp.this_residual = read_3393_count(hostdata);
- cmd->SCp.ptr += (length - cmd->SCp.this_residual);
-
- DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
-
- }
-
- else if (hostdata->fifo == FI_FIFO_WRITING) {
- hostdata->fifo = FI_FIFO_UNUSED;
- length = cmd->SCp.this_residual;
- cmd->SCp.this_residual = read_3393_count(hostdata);
- cmd->SCp.ptr += (length - cmd->SCp.this_residual);
-
- DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
-
- }
-
-/* Respond to the specific WD3393 interrupt - there are quite a few! */
-
- switch (sr) {
-
- case CSR_TIMEOUT:
- DB(DB_INTR, printk("TIMEOUT"))
-
- if (hostdata->state == S_RUNNING_LEVEL2)
- hostdata->connected = NULL;
- else {
- cmd = (Scsi_Cmnd *) hostdata->selecting; /* get a valid cmd */
- CHECK_NULL(cmd, "csr_timeout")
- hostdata->selecting = NULL;
- }
-
- cmd->result = DID_NO_CONNECT << 16;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- cmd->scsi_done(cmd);
-
-/* We are not connected to a target - check to see if there
- * are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
-/* Note: this interrupt should not occur in a LEVEL2 command */
-
- case CSR_SELECT:
- DB(DB_INTR, printk("SELECT"))
- hostdata->connected = cmd = (Scsi_Cmnd *) hostdata->selecting;
- CHECK_NULL(cmd, "csr_select")
- hostdata->selecting = NULL;
-
- /* construct an IDENTIFY message with correct disconnect bit */
-
- hostdata->outgoing_msg[0] = (0x80 | 0x00 | cmd->device->lun);
- if (cmd->SCp.phase)
- hostdata->outgoing_msg[0] |= 0x40;
-
- if (hostdata->sync_stat[cmd->device->id] == SS_FIRST) {
-#ifdef SYNC_DEBUG
- printk(" sending SDTR ");
-#endif
-
- hostdata->sync_stat[cmd->device->id] = SS_WAITING;
-
- /* tack on a 2nd message to ask about synchronous transfers */
-
- hostdata->outgoing_msg[1] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[2] = 3;
- hostdata->outgoing_msg[3] = EXTENDED_SDTR;
- hostdata->outgoing_msg[4] = OPTIMUM_SX_PER / 4;
- hostdata->outgoing_msg[5] = OPTIMUM_SX_OFF;
- hostdata->outgoing_len = 6;
- } else
- hostdata->outgoing_len = 1;
-
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_DATA_IN:
- case CSR_UNEXP | PHS_DATA_IN:
- case CSR_SRV_REQ | PHS_DATA_IN:
- DB(DB_INTR, printk("IN-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
- transfer_bytes(cmd, DATA_IN_DIR);
- if (hostdata->state != S_RUNNING_LEVEL2)
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_DATA_OUT:
- case CSR_UNEXP | PHS_DATA_OUT:
- case CSR_SRV_REQ | PHS_DATA_OUT:
- DB(DB_INTR, printk("OUT-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
- transfer_bytes(cmd, DATA_OUT_DIR);
- if (hostdata->state != S_RUNNING_LEVEL2)
- hostdata->state = S_CONNECTED;
- break;
-
-
-/* Note: this interrupt should not occur in a LEVEL2 command */
-
- case CSR_XFER_DONE | PHS_COMMAND:
- case CSR_UNEXP | PHS_COMMAND:
- case CSR_SRV_REQ | PHS_COMMAND:
- DB(DB_INTR, printk("CMND-%02x", cmd->cmnd[0]))
- transfer_pio(cmd->cmnd, cmd->cmd_len, DATA_OUT_DIR, hostdata);
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_XFER_DONE | PHS_STATUS:
- case CSR_UNEXP | PHS_STATUS:
- case CSR_SRV_REQ | PHS_STATUS:
- DB(DB_INTR, printk("STATUS="))
-
- cmd->SCp.Status = read_1_byte(hostdata);
- DB(DB_INTR, printk("%02x", cmd->SCp.Status))
- if (hostdata->level2 >= L2_BASIC) {
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393(hostdata, WD_COMMAND_PHASE, 0x50);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- } else {
- hostdata->state = S_CONNECTED;
- }
- break;
-
-
- case CSR_XFER_DONE | PHS_MESS_IN:
- case CSR_UNEXP | PHS_MESS_IN:
- case CSR_SRV_REQ | PHS_MESS_IN:
- DB(DB_INTR, printk("MSG_IN="))
-
- msg = read_1_byte(hostdata);
- sr = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
-
- hostdata->incoming_msg[hostdata->incoming_ptr] = msg;
- if (hostdata->incoming_msg[0] == EXTENDED_MESSAGE)
- msg = EXTENDED_MESSAGE;
- else
- hostdata->incoming_ptr = 0;
-
- cmd->SCp.Message = msg;
- switch (msg) {
-
- case COMMAND_COMPLETE:
- DB(DB_INTR, printk("CCMP"))
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_PRE_CMP_DISC;
- break;
-
- case SAVE_POINTERS:
- DB(DB_INTR, printk("SDP"))
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
-
- case RESTORE_POINTERS:
- DB(DB_INTR, printk("RDP"))
- if (hostdata->level2 >= L2_BASIC) {
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else {
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
- case DISCONNECT:
- DB(DB_INTR, printk("DIS"))
- cmd->device->disconnect = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_PRE_TMP_DISC;
- break;
-
- case MESSAGE_REJECT:
- DB(DB_INTR, printk("REJ"))
-#ifdef SYNC_DEBUG
- printk("-REJ-");
-#endif
- if (hostdata->sync_stat[cmd->device->id] == SS_WAITING)
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
-
- case EXTENDED_MESSAGE:
- DB(DB_INTR, printk("EXT"))
-
- ucp = hostdata->incoming_msg;
-
-#ifdef SYNC_DEBUG
- printk("%02x", ucp[hostdata->incoming_ptr]);
-#endif
- /* Is this the last byte of the extended message? */
-
- if ((hostdata->incoming_ptr >= 2) && (hostdata->incoming_ptr == (ucp[1] + 1))) {
-
- switch (ucp[2]) { /* what's the EXTENDED code? */
- case EXTENDED_SDTR:
- id = calc_sync_xfer(ucp[3], ucp[4]);
- if (hostdata->sync_stat[cmd->device->id] != SS_WAITING) {
-
-/* A device has sent an unsolicited SDTR message; rather than go
- * through the effort of decoding it and then figuring out what
- * our reply should be, we're just gonna say that we have a
- * synchronous fifo depth of 0. This will result in asynchronous
- * transfers - not ideal but so much easier.
- * Actually, this is OK because it assures us that if we don't
- * specifically ask for sync transfers, we won't do any.
- */
-
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[1] = 3;
- hostdata->outgoing_msg[2] = EXTENDED_SDTR;
- hostdata->outgoing_msg[3] = hostdata->default_sx_per / 4;
- hostdata->outgoing_msg[4] = 0;
- hostdata->outgoing_len = 5;
- hostdata->sync_xfer[cmd->device->id] = calc_sync_xfer(hostdata->default_sx_per / 4, 0);
- } else {
- hostdata->sync_xfer[cmd->device->id] = id;
- }
-#ifdef SYNC_DEBUG
- printk("sync_xfer=%02x", hostdata->sync_xfer[cmd->device->id]);
-#endif
- hostdata->sync_stat[cmd->device->id] = SS_SET;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- case EXTENDED_WDTR:
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- printk("sending WDTR ");
- hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
- hostdata->outgoing_msg[1] = 2;
- hostdata->outgoing_msg[2] = EXTENDED_WDTR;
- hostdata->outgoing_msg[3] = 0; /* 8 bit transfer width */
- hostdata->outgoing_len = 4;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- default:
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- printk("Rejecting Unknown Extended Message(%02x). ", ucp[2]);
- hostdata->outgoing_msg[0] = MESSAGE_REJECT;
- hostdata->outgoing_len = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- break;
- }
- hostdata->incoming_ptr = 0;
- }
-
- /* We need to read more MESS_IN bytes for the extended message */
-
- else {
- hostdata->incoming_ptr++;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
- default:
- printk("Rejecting Unknown Message(%02x) ", msg);
- write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN); /* want MESS_OUT */
- hostdata->outgoing_msg[0] = MESSAGE_REJECT;
- hostdata->outgoing_len = 1;
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- hostdata->state = S_CONNECTED;
- }
- break;
-
-
-/* Note: this interrupt will occur only after a LEVEL2 command */
-
- case CSR_SEL_XFER_DONE:
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- if (phs == 0x60) {
- DB(DB_INTR, printk("SX-DONE"))
- cmd->SCp.Message = COMMAND_COMPLETE;
- lun = read_3393(hostdata, WD_TARGET_LUN);
- DB(DB_INTR, printk(":%d.%d", cmd->SCp.Status, lun))
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- if (cmd->SCp.Status == ILLEGAL_STATUS_BYTE)
- cmd->SCp.Status = lun;
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- } else {
- printk("%02x:%02x:%02x: Unknown SEL_XFER_DONE phase!!---", asr, sr, phs);
- }
- break;
-
-
-/* Note: this interrupt will occur only after a LEVEL2 command */
-
- case CSR_SDP:
- DB(DB_INTR, printk("SDP"))
- hostdata->state = S_RUNNING_LEVEL2;
- write_3393(hostdata, WD_COMMAND_PHASE, 0x41);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- break;
-
-
- case CSR_XFER_DONE | PHS_MESS_OUT:
- case CSR_UNEXP | PHS_MESS_OUT:
- case CSR_SRV_REQ | PHS_MESS_OUT:
- DB(DB_INTR, printk("MSG_OUT="))
-
-/* To get here, we've probably requested MESSAGE_OUT and have
- * already put the correct bytes in outgoing_msg[] and filled
- * in outgoing_len. We simply send them out to the SCSI bus.
- * Sometimes we get MESSAGE_OUT phase when we're not expecting
- * it - like when our SDTR message is rejected by a target. Some
- * targets send the REJECT before receiving all of the extended
- * message, and then seem to go back to MESSAGE_OUT for a byte
- * or two. Not sure why, or if I'm doing something wrong to
- * cause this to happen. Regardless, it seems that sending
- * NOP messages in these situations results in no harm and
- * makes everyone happy.
- */
- if (hostdata->outgoing_len == 0) {
- hostdata->outgoing_len = 1;
- hostdata->outgoing_msg[0] = NOP;
- }
- transfer_pio(hostdata->outgoing_msg, hostdata->outgoing_len, DATA_OUT_DIR, hostdata);
- DB(DB_INTR, printk("%02x", hostdata->outgoing_msg[0]))
- hostdata->outgoing_len = 0;
- hostdata->state = S_CONNECTED;
- break;
-
-
- case CSR_UNEXP_DISC:
-
-/* I think I've seen this after a request-sense that was in response
- * to an error condition, but not sure. We certainly need to do
- * something when we get this interrupt - the question is 'what?'.
- * Let's think positively, and assume some command has finished
- * in a legal manner (like a command that provokes a request-sense),
- * so we treat it as a normal command-complete-disconnect.
- */
-
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- if (cmd == NULL) {
- printk(" - Already disconnected! ");
- hostdata->state = S_UNCONNECTED;
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
- }
- DB(DB_INTR, printk("UNEXP_DISC"))
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
- case CSR_DISC:
-
-/* Make sure that reselection is enabled at this point - it may
- * have been turned off for the command that just completed.
- */
-
- write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
- DB(DB_INTR, printk("DISC"))
- if (cmd == NULL) {
- printk(" - Already disconnected! ");
- hostdata->state = S_UNCONNECTED;
- }
- switch (hostdata->state) {
- case S_PRE_CMP_DISC:
- hostdata->connected = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->state = S_UNCONNECTED;
- DB(DB_INTR, printk(":%d", cmd->SCp.Status))
- if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
- cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
- else
- cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
- cmd->scsi_done(cmd);
- break;
- case S_PRE_TMP_DISC:
- case S_RUNNING_LEVEL2:
- cmd->host_scribble = (uchar *) hostdata->disconnected_Q;
- hostdata->disconnected_Q = cmd;
- hostdata->connected = NULL;
- hostdata->state = S_UNCONNECTED;
-
-#ifdef PROC_STATISTICS
- hostdata->disc_done_cnt[cmd->device->id]++;
-#endif
-
- break;
- default:
- printk("*** Unexpected DISCONNECT interrupt! ***");
- hostdata->state = S_UNCONNECTED;
- }
-
-/* We are no longer connected to a target - check to see if
- * there are commands waiting to be executed.
- */
-
- in2000_execute(instance);
- break;
-
-
- case CSR_RESEL_AM:
- DB(DB_INTR, printk("RESEL"))
-
- /* First we have to make sure this reselection didn't */
- /* happen during Arbitration/Selection of some other device. */
- /* If yes, put losing command back on top of input_Q. */
- if (hostdata->level2 <= L2_NONE) {
-
- if (hostdata->selecting) {
- cmd = (Scsi_Cmnd *) hostdata->selecting;
- hostdata->selecting = NULL;
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- }
- }
-
- else {
-
- if (cmd) {
- if (phs == 0x00) {
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- cmd->host_scribble = (uchar *) hostdata->input_Q;
- hostdata->input_Q = cmd;
- } else {
- printk("---%02x:%02x:%02x-TROUBLE: Intrusive ReSelect!---", asr, sr, phs);
- while (1)
- printk("\r");
- }
- }
-
- }
-
- /* OK - find out which device reselected us. */
-
- id = read_3393(hostdata, WD_SOURCE_ID);
- id &= SRCID_MASK;
-
- /* and extract the lun from the ID message. (Note that we don't
- * bother to check for a valid message here - I guess this is
- * not the right way to go, but....)
- */
-
- lun = read_3393(hostdata, WD_DATA);
- if (hostdata->level2 < L2_RESELECT)
- write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
- lun &= 7;
-
- /* Now we look for the command that's reconnecting. */
-
- cmd = (Scsi_Cmnd *) hostdata->disconnected_Q;
- patch = NULL;
- while (cmd) {
- if (id == cmd->device->id && lun == cmd->device->lun)
- break;
- patch = cmd;
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
-
- /* Hmm. Couldn't find a valid command.... What to do? */
-
- if (!cmd) {
- printk("---TROUBLE: target %d.%d not in disconnect queue---", id, lun);
- break;
- }
-
- /* Ok, found the command - now start it up again. */
-
- if (patch)
- patch->host_scribble = cmd->host_scribble;
- else
- hostdata->disconnected_Q = (Scsi_Cmnd *) cmd->host_scribble;
- hostdata->connected = cmd;
-
- /* We don't need to worry about 'initialize_SCp()' or 'hostdata->busy[]'
- * because these things are preserved over a disconnect.
- * But we DO need to fix the DPD bit so it's correct for this command.
- */
-
- if (is_dir_out(cmd))
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
- else
- write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
- if (hostdata->level2 >= L2_RESELECT) {
- write_3393_count(hostdata, 0); /* we want a DATA_PHASE interrupt */
- write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
- write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
- hostdata->state = S_RUNNING_LEVEL2;
- } else
- hostdata->state = S_CONNECTED;
-
- break;
-
- default:
- printk("--UNKNOWN INTERRUPT:%02x:%02x:%02x--", asr, sr, phs);
- }
-
- write1_io(0, IO_LED_OFF);
-
- DB(DB_INTR, printk("} "))
-
-/* release the SMP spin_lock and restore irq state */
- spin_unlock_irqrestore(instance->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-
-
-#define RESET_CARD 0
-#define RESET_CARD_AND_BUS 1
-#define B_FLAG 0x80
-
-/*
- * Caller must hold instance lock!
- */
-
-static int reset_hardware(struct Scsi_Host *instance, int type)
-{
- struct IN2000_hostdata *hostdata;
- int qt, x;
-
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- write1_io(0, IO_LED_ON);
- if (type == RESET_CARD_AND_BUS) {
- write1_io(0, IO_CARD_RESET);
- x = read1_io(IO_HARDWARE);
- }
- x = read_3393(hostdata, WD_SCSI_STATUS); /* clear any WD intrpt */
- write_3393(hostdata, WD_OWN_ID, instance->this_id | OWNID_EAF | OWNID_RAF | OWNID_FS_8);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, calc_sync_xfer(hostdata->default_sx_per / 4, DEFAULT_SX_OFF));
-
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter */
- write1_io(0, IO_FIFO_READ); /* start fifo out in read mode */
- write_3393(hostdata, WD_COMMAND, WD_CMD_RESET);
- /* FIXME: timeout ?? */
- while (!(READ_AUX_STAT() & ASR_INT))
- cpu_relax(); /* wait for RESET to complete */
-
- x = read_3393(hostdata, WD_SCSI_STATUS); /* clear interrupt */
-
- write_3393(hostdata, WD_QUEUE_TAG, 0xa5); /* any random number */
- qt = read_3393(hostdata, WD_QUEUE_TAG);
- if (qt == 0xa5) {
- x |= B_FLAG;
- write_3393(hostdata, WD_QUEUE_TAG, 0);
- }
- write_3393(hostdata, WD_TIMEOUT_PERIOD, TIMEOUT_PERIOD_VALUE);
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write1_io(0, IO_LED_OFF);
- return x;
-}
-
-
-
-static int in2000_bus_reset(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- int x;
- unsigned long flags;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- printk(KERN_WARNING "scsi%d: Reset. ", instance->host_no);
-
- spin_lock_irqsave(instance->host_lock, flags);
-
- /* do scsi-reset here */
- reset_hardware(instance, RESET_CARD_AND_BUS);
- for (x = 0; x < 8; x++) {
- hostdata->busy[x] = 0;
- hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
- hostdata->sync_stat[x] = SS_UNSET; /* using default sync values */
- }
- hostdata->input_Q = NULL;
- hostdata->selecting = NULL;
- hostdata->connected = NULL;
- hostdata->disconnected_Q = NULL;
- hostdata->state = S_UNCONNECTED;
- hostdata->fifo = FI_FIFO_UNUSED;
- hostdata->incoming_ptr = 0;
- hostdata->outgoing_len = 0;
-
- cmd->result = DID_RESET << 16;
-
- spin_unlock_irqrestore(instance->host_lock, flags);
- return SUCCESS;
-}
-
-static int __in2000_abort(Scsi_Cmnd * cmd)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- Scsi_Cmnd *tmp, *prev;
- uchar sr, asr;
- unsigned long timeout;
-
- instance = cmd->device->host;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
-
- printk(KERN_DEBUG "scsi%d: Abort-", instance->host_no);
- printk("(asr=%02x,count=%ld,resid=%d,buf_resid=%d,have_data=%d,FC=%02x)- ", READ_AUX_STAT(), read_3393_count(hostdata), cmd->SCp.this_residual, cmd->SCp.buffers_residual, cmd->SCp.have_data_in, read1_io(IO_FIFO_COUNT));
-
-/*
- * Case 1 : If the command hasn't been issued yet, we simply remove it
- * from the inout_Q.
- */
-
- tmp = (Scsi_Cmnd *) hostdata->input_Q;
- prev = NULL;
- while (tmp) {
- if (tmp == cmd) {
- if (prev)
- prev->host_scribble = cmd->host_scribble;
- cmd->host_scribble = NULL;
- cmd->result = DID_ABORT << 16;
- printk(KERN_WARNING "scsi%d: Abort - removing command from input_Q. ", instance->host_no);
- cmd->scsi_done(cmd);
- return SUCCESS;
- }
- prev = tmp;
- tmp = (Scsi_Cmnd *) tmp->host_scribble;
- }
-
-/*
- * Case 2 : If the command is connected, we're going to fail the abort
- * and let the high level SCSI driver retry at a later time or
- * issue a reset.
- *
- * Timeouts, and therefore aborted commands, will be highly unlikely
- * and handling them cleanly in this situation would make the common
- * case of noresets less efficient, and would pollute our code. So,
- * we fail.
- */
-
- if (hostdata->connected == cmd) {
-
- printk(KERN_WARNING "scsi%d: Aborting connected command - ", instance->host_no);
-
- printk("sending wd33c93 ABORT command - ");
- write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
- write_3393_cmd(hostdata, WD_CMD_ABORT);
-
-/* Now we have to attempt to flush out the FIFO... */
-
- printk("flushing fifo - ");
- timeout = 1000000;
- do {
- asr = READ_AUX_STAT();
- if (asr & ASR_DBR)
- read_3393(hostdata, WD_DATA);
- } while (!(asr & ASR_INT) && timeout-- > 0);
- sr = read_3393(hostdata, WD_SCSI_STATUS);
- printk("asr=%02x, sr=%02x, %ld bytes un-transferred (timeout=%ld) - ", asr, sr, read_3393_count(hostdata), timeout);
-
- /*
- * Abort command processed.
- * Still connected.
- * We must disconnect.
- */
-
- printk("sending wd33c93 DISCONNECT command - ");
- write_3393_cmd(hostdata, WD_CMD_DISCONNECT);
-
- timeout = 1000000;
- asr = READ_AUX_STAT();
- while ((asr & ASR_CIP) && timeout-- > 0)
- asr = READ_AUX_STAT();
- sr = read_3393(hostdata, WD_SCSI_STATUS);
- printk("asr=%02x, sr=%02x.", asr, sr);
-
- hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
- hostdata->connected = NULL;
- hostdata->state = S_UNCONNECTED;
- cmd->result = DID_ABORT << 16;
- cmd->scsi_done(cmd);
-
- in2000_execute(instance);
-
- return SUCCESS;
- }
-
-/*
- * Case 3: If the command is currently disconnected from the bus,
- * we're not going to expend much effort here: Let's just return
- * an ABORT_SNOOZE and hope for the best...
- */
-
- for (tmp = (Scsi_Cmnd *) hostdata->disconnected_Q; tmp; tmp = (Scsi_Cmnd *) tmp->host_scribble)
- if (cmd == tmp) {
- printk(KERN_DEBUG "scsi%d: unable to abort disconnected command.\n", instance->host_no);
- return FAILED;
- }
-
-/*
- * Case 4 : If we reached this point, the command was not found in any of
- * the queues.
- *
- * We probably reached this point because of an unlikely race condition
- * between the command completing successfully and the abortion code,
- * so we won't panic, but we will notify the user in case something really
- * broke.
- */
-
- in2000_execute(instance);
-
- printk("scsi%d: warning : SCSI command probably completed successfully" " before abortion. ", instance->host_no);
- return SUCCESS;
-}
-
-static int in2000_abort(Scsi_Cmnd * cmd)
-{
- int rc;
-
- spin_lock_irq(cmd->device->host->host_lock);
- rc = __in2000_abort(cmd);
- spin_unlock_irq(cmd->device->host->host_lock);
-
- return rc;
-}
-
-
-#define MAX_IN2000_HOSTS 3
-#define MAX_SETUP_ARGS ARRAY_SIZE(setup_args)
-#define SETUP_BUFFER_SIZE 200
-static char setup_buffer[SETUP_BUFFER_SIZE];
-static char setup_used[MAX_SETUP_ARGS];
-static int done_setup = 0;
-
-static void __init in2000_setup(char *str, int *ints)
-{
- int i;
- char *p1, *p2;
-
- strlcpy(setup_buffer, str, SETUP_BUFFER_SIZE);
- p1 = setup_buffer;
- i = 0;
- while (*p1 && (i < MAX_SETUP_ARGS)) {
- p2 = strchr(p1, ',');
- if (p2) {
- *p2 = '\0';
- if (p1 != p2)
- setup_args[i] = p1;
- p1 = p2 + 1;
- i++;
- } else {
- setup_args[i] = p1;
- break;
- }
- }
- for (i = 0; i < MAX_SETUP_ARGS; i++)
- setup_used[i] = 0;
- done_setup = 1;
-}
-
-
-/* check_setup_args() returns index if key found, 0 if not
- */
-
-static int __init check_setup_args(char *key, int *val, char *buf)
-{
- int x;
- char *cp;
-
- for (x = 0; x < MAX_SETUP_ARGS; x++) {
- if (setup_used[x])
- continue;
- if (!strncmp(setup_args[x], key, strlen(key)))
- break;
- }
- if (x == MAX_SETUP_ARGS)
- return 0;
- setup_used[x] = 1;
- cp = setup_args[x] + strlen(key);
- *val = -1;
- if (*cp != ':')
- return ++x;
- cp++;
- if ((*cp >= '0') && (*cp <= '9')) {
- *val = simple_strtoul(cp, NULL, 0);
- }
- return ++x;
-}
-
-
-
-/* The "correct" (ie portable) way to access memory-mapped hardware
- * such as the IN2000 EPROM and dip switch is through the use of
- * special macros declared in 'asm/io.h'. We use readb() and readl()
- * when reading from the card's BIOS area in in2000_detect().
- */
-static u32 bios_tab[] in2000__INITDATA = {
- 0xc8000,
- 0xd0000,
- 0xd8000,
- 0
-};
-
-static unsigned short base_tab[] in2000__INITDATA = {
- 0x220,
- 0x200,
- 0x110,
- 0x100,
-};
-
-static int int_tab[] in2000__INITDATA = {
- 15,
- 14,
- 11,
- 10
-};
-
-static int probe_bios(u32 addr, u32 *s1, uchar *switches)
-{
- void __iomem *p = ioremap(addr, 0x34);
- if (!p)
- return 0;
- *s1 = readl(p + 0x10);
- if (*s1 == 0x41564f4e || readl(p + 0x30) == 0x61776c41) {
- /* Read the switch image that's mapped into EPROM space */
- *switches = ~readb(p + 0x20);
- iounmap(p);
- return 1;
- }
- iounmap(p);
- return 0;
-}
-
-static int __init in2000_detect(struct scsi_host_template * tpnt)
-{
- struct Scsi_Host *instance;
- struct IN2000_hostdata *hostdata;
- int detect_count;
- int bios;
- int x;
- unsigned short base;
- uchar switches;
- uchar hrev;
- unsigned long flags;
- int val;
- char buf[32];
-
-/* Thanks to help from Bill Earnest, probing for IN2000 cards is a
- * pretty straightforward and fool-proof operation. There are 3
- * possible locations for the IN2000 EPROM in memory space - if we
- * find a BIOS signature, we can read the dip switch settings from
- * the byte at BIOS+32 (shadowed in by logic on the card). From 2
- * of the switch bits we get the card's address in IO space. There's
- * an image of the dip switch there, also, so we have a way to back-
- * check that this really is an IN2000 card. Very nifty. Use the
- * 'ioport:xx' command-line parameter if your BIOS EPROM is absent
- * or disabled.
- */
-
- if (!done_setup && setup_strings)
- in2000_setup(setup_strings, NULL);
-
- detect_count = 0;
- for (bios = 0; bios_tab[bios]; bios++) {
- u32 s1 = 0;
- if (check_setup_args("ioport", &val, buf)) {
- base = val;
- switches = ~inb(base + IO_SWITCHES) & 0xff;
- printk("Forcing IN2000 detection at IOport 0x%x ", base);
- bios = 2;
- }
-/*
- * There have been a couple of BIOS versions with different layouts
- * for the obvious ID strings. We look for the 2 most common ones and
- * hope that they cover all the cases...
- */
- else if (probe_bios(bios_tab[bios], &s1, &switches)) {
- printk("Found IN2000 BIOS at 0x%x ", (unsigned int) bios_tab[bios]);
-
-/* Find out where the IO space is */
-
- x = switches & (SW_ADDR0 | SW_ADDR1);
- base = base_tab[x];
-
-/* Check for the IN2000 signature in IO space. */
-
- x = ~inb(base + IO_SWITCHES) & 0xff;
- if (x != switches) {
- printk("Bad IO signature: %02x vs %02x.\n", x, switches);
- continue;
- }
- } else
- continue;
-
-/* OK. We have a base address for the IO ports - run a few safety checks */
-
- if (!(switches & SW_BIT7)) { /* I _think_ all cards do this */
- printk("There is no IN-2000 SCSI card at IOport 0x%03x!\n", base);
- continue;
- }
-
-/* Let's assume any hardware version will work, although the driver
- * has only been tested on 0x21, 0x22, 0x25, 0x26, and 0x27. We'll
- * print out the rev number for reference later, but accept them all.
- */
-
- hrev = inb(base + IO_HARDWARE);
-
- /* Bit 2 tells us if interrupts are disabled */
- if (switches & SW_DISINT) {
- printk("The IN-2000 SCSI card at IOport 0x%03x ", base);
- printk("is not configured for interrupt operation!\n");
- printk("This driver requires an interrupt: cancelling detection.\n");
- continue;
- }
-
-/* Ok. We accept that there's an IN2000 at ioaddr 'base'. Now
- * initialize it.
- */
-
- tpnt->proc_name = "in2000";
- instance = scsi_register(tpnt, sizeof(struct IN2000_hostdata));
- if (instance == NULL)
- continue;
- detect_count++;
- hostdata = (struct IN2000_hostdata *) instance->hostdata;
- instance->io_port = hostdata->io_base = base;
- hostdata->dip_switch = switches;
- hostdata->hrev = hrev;
-
- write1_io(0, IO_FIFO_WRITE); /* clear fifo counter */
- write1_io(0, IO_FIFO_READ); /* start fifo out in read mode */
- write1_io(0, IO_INTR_MASK); /* allow all ints */
- x = int_tab[(switches & (SW_INT0 | SW_INT1)) >> SW_INT_SHIFT];
- if (request_irq(x, in2000_intr, 0, "in2000", instance)) {
- printk("in2000_detect: Unable to allocate IRQ.\n");
- detect_count--;
- continue;
- }
- instance->irq = x;
- instance->n_io_port = 13;
- request_region(base, 13, "in2000"); /* lock in this IO space for our use */
-
- for (x = 0; x < 8; x++) {
- hostdata->busy[x] = 0;
- hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
- hostdata->sync_stat[x] = SS_UNSET; /* using default sync values */
-#ifdef PROC_STATISTICS
- hostdata->cmd_cnt[x] = 0;
- hostdata->disc_allowed_cnt[x] = 0;
- hostdata->disc_done_cnt[x] = 0;
-#endif
- }
- hostdata->input_Q = NULL;
- hostdata->selecting = NULL;
- hostdata->connected = NULL;
- hostdata->disconnected_Q = NULL;
- hostdata->state = S_UNCONNECTED;
- hostdata->fifo = FI_FIFO_UNUSED;
- hostdata->level2 = L2_BASIC;
- hostdata->disconnect = DIS_ADAPTIVE;
- hostdata->args = DEBUG_DEFAULTS;
- hostdata->incoming_ptr = 0;
- hostdata->outgoing_len = 0;
- hostdata->default_sx_per = DEFAULT_SX_PER;
-
-/* Older BIOS's had a 'sync on/off' switch - use its setting */
-
- if (s1 == 0x41564f4e && (switches & SW_SYNC_DOS5))
- hostdata->sync_off = 0x00; /* sync defaults to on */
- else
- hostdata->sync_off = 0xff; /* sync defaults to off */
-
-#ifdef PROC_INTERFACE
- hostdata->proc = PR_VERSION | PR_INFO | PR_STATISTICS | PR_CONNECTED | PR_INPUTQ | PR_DISCQ | PR_STOP;
-#ifdef PROC_STATISTICS
- hostdata->int_cnt = 0;
-#endif
-#endif
-
- if (check_setup_args("nosync", &val, buf))
- hostdata->sync_off = val;
-
- if (check_setup_args("period", &val, buf))
- hostdata->default_sx_per = sx_table[round_period((unsigned int) val)].period_ns;
-
- if (check_setup_args("disconnect", &val, buf)) {
- if ((val >= DIS_NEVER) && (val <= DIS_ALWAYS))
- hostdata->disconnect = val;
- else
- hostdata->disconnect = DIS_ADAPTIVE;
- }
-
- if (check_setup_args("noreset", &val, buf))
- hostdata->args ^= A_NO_SCSI_RESET;
-
- if (check_setup_args("level2", &val, buf))
- hostdata->level2 = val;
-
- if (check_setup_args("debug", &val, buf))
- hostdata->args = (val & DB_MASK);
-
-#ifdef PROC_INTERFACE
- if (check_setup_args("proc", &val, buf))
- hostdata->proc = val;
-#endif
-
-
- /* FIXME: not strictly needed I think but the called code expects
- to be locked */
- spin_lock_irqsave(instance->host_lock, flags);
- x = reset_hardware(instance, (hostdata->args & A_NO_SCSI_RESET) ? RESET_CARD : RESET_CARD_AND_BUS);
- spin_unlock_irqrestore(instance->host_lock, flags);
-
- hostdata->microcode = read_3393(hostdata, WD_CDB_1);
- if (x & 0x01) {
- if (x & B_FLAG)
- hostdata->chip = C_WD33C93B;
- else
- hostdata->chip = C_WD33C93A;
- } else
- hostdata->chip = C_WD33C93;
-
- printk("dip_switch=%02x irq=%d ioport=%02x floppy=%s sync/DOS5=%s ", (switches & 0x7f), instance->irq, hostdata->io_base, (switches & SW_FLOPPY) ? "Yes" : "No", (switches & SW_SYNC_DOS5) ? "Yes" : "No");
- printk("hardware_ver=%02x chip=%s microcode=%02x\n", hrev, (hostdata->chip == C_WD33C93) ? "WD33c93" : (hostdata->chip == C_WD33C93A) ? "WD33c93A" : (hostdata->chip == C_WD33C93B) ? "WD33c93B" : "unknown", hostdata->microcode);
-#ifdef DEBUGGING_ON
- printk("setup_args = ");
- for (x = 0; x < MAX_SETUP_ARGS; x++)
- printk("%s,", setup_args[x]);
- printk("\n");
-#endif
- if (hostdata->sync_off == 0xff)
- printk("Sync-transfer DISABLED on all devices: ENABLE from command-line\n");
- printk("IN2000 driver version %s - %s\n", IN2000_VERSION, IN2000_DATE);
- }
-
- return detect_count;
-}
-
-static int in2000_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, shost);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- return 0;
-}
-
-/* NOTE: I lifted this function straight out of the old driver,
- * and have not tested it. Presumably it does what it's
- * supposed to do...
- */
-
-static int in2000_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int *iinfo)
-{
- int size;
-
- size = capacity;
- iinfo[0] = 64;
- iinfo[1] = 32;
- iinfo[2] = size >> 11;
-
-/* This should approximate the large drive handling that the DOS ASPI manager
- uses. Drives very near the boundaries may not be handled correctly (i.e.
- near 2.0 Gb and 4.0 Gb) */
-
- if (iinfo[2] > 1024) {
- iinfo[0] = 64;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- if (iinfo[2] > 1024) {
- iinfo[0] = 128;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- if (iinfo[2] > 1024) {
- iinfo[0] = 255;
- iinfo[1] = 63;
- iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
- }
- return 0;
-}
-
-
-static int in2000_write_info(struct Scsi_Host *instance, char *buf, int len)
-{
-
-#ifdef PROC_INTERFACE
-
- char *bp;
- struct IN2000_hostdata *hd;
- int x, i;
-
- hd = (struct IN2000_hostdata *) instance->hostdata;
-
- buf[len] = '\0';
- bp = buf;
- if (!strncmp(bp, "debug:", 6)) {
- bp += 6;
- hd->args = simple_strtoul(bp, NULL, 0) & DB_MASK;
- } else if (!strncmp(bp, "disconnect:", 11)) {
- bp += 11;
- x = simple_strtoul(bp, NULL, 0);
- if (x < DIS_NEVER || x > DIS_ALWAYS)
- x = DIS_ADAPTIVE;
- hd->disconnect = x;
- } else if (!strncmp(bp, "period:", 7)) {
- bp += 7;
- x = simple_strtoul(bp, NULL, 0);
- hd->default_sx_per = sx_table[round_period((unsigned int) x)].period_ns;
- } else if (!strncmp(bp, "resync:", 7)) {
- bp += 7;
- x = simple_strtoul(bp, NULL, 0);
- for (i = 0; i < 7; i++)
- if (x & (1 << i))
- hd->sync_stat[i] = SS_UNSET;
- } else if (!strncmp(bp, "proc:", 5)) {
- bp += 5;
- hd->proc = simple_strtoul(bp, NULL, 0);
- } else if (!strncmp(bp, "level2:", 7)) {
- bp += 7;
- hd->level2 = simple_strtoul(bp, NULL, 0);
- }
-#endif
- return len;
-}
-
-static int in2000_show_info(struct seq_file *m, struct Scsi_Host *instance)
-{
-
-#ifdef PROC_INTERFACE
- unsigned long flags;
- struct IN2000_hostdata *hd;
- Scsi_Cmnd *cmd;
- int x;
-
- hd = (struct IN2000_hostdata *) instance->hostdata;
-
- spin_lock_irqsave(instance->host_lock, flags);
- if (hd->proc & PR_VERSION)
- seq_printf(m, "\nVersion %s - %s.", IN2000_VERSION, IN2000_DATE);
-
- if (hd->proc & PR_INFO) {
- seq_printf(m, "\ndip_switch=%02x: irq=%d io=%02x floppy=%s sync/DOS5=%s", (hd->dip_switch & 0x7f), instance->irq, hd->io_base, (hd->dip_switch & 0x40) ? "Yes" : "No", (hd->dip_switch & 0x20) ? "Yes" : "No");
- seq_puts(m, "\nsync_xfer[] = ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%02x", hd->sync_xfer[x]);
- seq_puts(m, "\nsync_stat[] = ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%02x", hd->sync_stat[x]);
- }
-#ifdef PROC_STATISTICS
- if (hd->proc & PR_STATISTICS) {
- seq_puts(m, "\ncommands issued: ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->cmd_cnt[x]);
- seq_puts(m, "\ndisconnects allowed:");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->disc_allowed_cnt[x]);
- seq_puts(m, "\ndisconnects done: ");
- for (x = 0; x < 7; x++)
- seq_printf(m, "\t%ld", hd->disc_done_cnt[x]);
- seq_printf(m, "\ninterrupts: \t%ld", hd->int_cnt);
- }
-#endif
- if (hd->proc & PR_CONNECTED) {
- seq_puts(m, "\nconnected: ");
- if (hd->connected) {
- cmd = (Scsi_Cmnd *) hd->connected;
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- }
- }
- if (hd->proc & PR_INPUTQ) {
- seq_puts(m, "\ninput_Q: ");
- cmd = (Scsi_Cmnd *) hd->input_Q;
- while (cmd) {
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
- }
- if (hd->proc & PR_DISCQ) {
- seq_puts(m, "\ndisconnected_Q:");
- cmd = (Scsi_Cmnd *) hd->disconnected_Q;
- while (cmd) {
- seq_printf(m, " %d:%llu(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
- cmd = (Scsi_Cmnd *) cmd->host_scribble;
- }
- }
- if (hd->proc & PR_TEST) {
- ; /* insert your own custom function here */
- }
- seq_putc(m, '\n');
- spin_unlock_irqrestore(instance->host_lock, flags);
-#endif /* PROC_INTERFACE */
- return 0;
-}
-
-MODULE_LICENSE("GPL");
-
-
-static struct scsi_host_template driver_template = {
- .proc_name = "in2000",
- .write_info = in2000_write_info,
- .show_info = in2000_show_info,
- .name = "Always IN2000",
- .detect = in2000_detect,
- .release = in2000_release,
- .queuecommand = in2000_queuecommand,
- .eh_abort_handler = in2000_abort,
- .eh_bus_reset_handler = in2000_bus_reset,
- .bios_param = in2000_biosparam,
- .can_queue = IN2000_CAN_Q,
- .this_id = IN2000_HOST_ID,
- .sg_tablesize = IN2000_SG,
- .cmd_per_lun = IN2000_CPL,
- .use_clustering = DISABLE_CLUSTERING,
-};
-#include "scsi_module.c"
diff --git a/drivers/scsi/in2000.h b/drivers/scsi/in2000.h
deleted file mode 100644
index 5821e1f..0000000
--- a/drivers/scsi/in2000.h
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- * in2000.h - Linux device driver definitions for the
- * Always IN2000 ISA SCSI card.
- *
- * IMPORTANT: This file is for version 1.33 - 26/Aug/1998
- *
- * Copyright (c) 1996 John Shifflett, GeoLog Consulting
- * john@geolog.com
- * jshiffle@netcom.com
- *
- * 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.
- *
- */
-
-#ifndef IN2000_H
-#define IN2000_H
-
-#include <asm/io.h>
-
-#define PROC_INTERFACE /* add code for /proc/scsi/in2000/xxx interface */
-#ifdef PROC_INTERFACE
-#define PROC_STATISTICS /* add code for keeping various real time stats */
-#endif
-
-#define SYNC_DEBUG /* extra info on sync negotiation printed */
-#define DEBUGGING_ON /* enable command-line debugging bitmask */
-#define DEBUG_DEFAULTS 0 /* default bitmask - change from command-line */
-
-#ifdef __i386__
-#define FAST_READ_IO /* No problems with these on my machine */
-#define FAST_WRITE_IO
-#endif
-
-#ifdef DEBUGGING_ON
-#define DB(f,a) if (hostdata->args & (f)) a;
-#define CHECK_NULL(p,s) /* if (!(p)) {printk("\n"); while (1) printk("NP:%s\r",(s));} */
-#else
-#define DB(f,a)
-#define CHECK_NULL(p,s)
-#endif
-
-#define uchar unsigned char
-
-#define read1_io(a) (inb(hostdata->io_base+(a)))
-#define read2_io(a) (inw(hostdata->io_base+(a)))
-#define write1_io(b,a) (outb((b),hostdata->io_base+(a)))
-#define write2_io(w,a) (outw((w),hostdata->io_base+(a)))
-
-#ifdef __i386__
-/* These inline assembly defines are derived from a patch
- * sent to me by Bill Earnest. He's done a lot of very
- * valuable thinking, testing, and coding during his effort
- * to squeeze more speed out of this driver. I really think
- * that we are doing IO at close to the maximum now with
- * the fifo. (And yes, insw uses 'edi' while outsw uses
- * 'esi'. Thanks Bill!)
- */
-
-#define FAST_READ2_IO() \
-({ \
-int __dummy_1,__dummy_2; \
- __asm__ __volatile__ ("\n \
- cld \n \
- orl %%ecx, %%ecx \n \
- jz 1f \n \
- rep \n \
- insw (%%dx),%%es:(%%edi) \n \
-1: " \
- : "=D" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2) /* output */ \
- : "2" (f), "0" (sp), "1" (i) /* input */ \
- ); /* trashed */ \
-})
-
-#define FAST_WRITE2_IO() \
-({ \
-int __dummy_1,__dummy_2; \
- __asm__ __volatile__ ("\n \
- cld \n \
- orl %%ecx, %%ecx \n \
- jz 1f \n \
- rep \n \
- outsw %%ds:(%%esi),(%%dx) \n \
-1: " \
- : "=S" (sp) ,"=c" (__dummy_1) ,"=d" (__dummy_2)/* output */ \
- : "2" (f), "0" (sp), "1" (i) /* input */ \
- ); /* trashed */ \
-})
-#endif
-
-/* IN2000 io_port offsets */
-#define IO_WD_ASR 0x00 /* R - 3393 auxstat reg */
-#define ASR_INT 0x80
-#define ASR_LCI 0x40
-#define ASR_BSY 0x20
-#define ASR_CIP 0x10
-#define ASR_PE 0x02
-#define ASR_DBR 0x01
-#define IO_WD_ADDR 0x00 /* W - 3393 address reg */
-#define IO_WD_DATA 0x01 /* R/W - rest of 3393 regs */
-#define IO_FIFO 0x02 /* R/W - in2000 dual-port fifo (16 bits) */
-#define IN2000_FIFO_SIZE 2048 /* fifo capacity in bytes */
-#define IO_CARD_RESET 0x03 /* W - in2000 start master reset */
-#define IO_FIFO_COUNT 0x04 /* R - in2000 fifo counter */
-#define IO_FIFO_WRITE 0x05 /* W - clear fifo counter, start write */
-#define IO_FIFO_READ 0x07 /* W - start fifo read */
-#define IO_LED_OFF 0x08 /* W - turn off in2000 activity LED */
-#define IO_SWITCHES 0x08 /* R - read in2000 dip switch */
-#define SW_ADDR0 0x01 /* bit 0 = bit 0 of index to io addr */
-#define SW_ADDR1 0x02 /* bit 1 = bit 1 of index io addr */
-#define SW_DISINT 0x04 /* bit 2 true if ints disabled */
-#define SW_INT0 0x08 /* bit 3 = bit 0 of index to interrupt */
-#define SW_INT1 0x10 /* bit 4 = bit 1 of index to interrupt */
-#define SW_INT_SHIFT 3 /* shift right this amount to right justify int bits */
-#define SW_SYNC_DOS5 0x20 /* bit 5 used by Always BIOS */
-#define SW_FLOPPY 0x40 /* bit 6 true if floppy enabled */
-#define SW_BIT7 0x80 /* bit 7 hardwired true (ground) */
-#define IO_LED_ON 0x09 /* W - turn on in2000 activity LED */
-#define IO_HARDWARE 0x0a /* R - read in2000 hardware rev, stop reset */
-#define IO_INTR_MASK 0x0c /* W - in2000 interrupt mask reg */
-#define IMASK_WD 0x01 /* WD33c93 interrupt mask */
-#define IMASK_FIFO 0x02 /* FIFO interrupt mask */
-
-/* wd register names */
-#define WD_OWN_ID 0x00
-#define WD_CONTROL 0x01
-#define WD_TIMEOUT_PERIOD 0x02
-#define WD_CDB_1 0x03
-#define WD_CDB_2 0x04
-#define WD_CDB_3 0x05
-#define WD_CDB_4 0x06
-#define WD_CDB_5 0x07
-#define WD_CDB_6 0x08
-#define WD_CDB_7 0x09
-#define WD_CDB_8 0x0a
-#define WD_CDB_9 0x0b
-#define WD_CDB_10 0x0c
-#define WD_CDB_11 0x0d
-#define WD_CDB_12 0x0e
-#define WD_TARGET_LUN 0x0f
-#define WD_COMMAND_PHASE 0x10
-#define WD_SYNCHRONOUS_TRANSFER 0x11
-#define WD_TRANSFER_COUNT_MSB 0x12
-#define WD_TRANSFER_COUNT 0x13
-#define WD_TRANSFER_COUNT_LSB 0x14
-#define WD_DESTINATION_ID 0x15
-#define WD_SOURCE_ID 0x16
-#define WD_SCSI_STATUS 0x17
-#define WD_COMMAND 0x18
-#define WD_DATA 0x19
-#define WD_QUEUE_TAG 0x1a
-#define WD_AUXILIARY_STATUS 0x1f
-
-/* WD commands */
-#define WD_CMD_RESET 0x00
-#define WD_CMD_ABORT 0x01
-#define WD_CMD_ASSERT_ATN 0x02
-#define WD_CMD_NEGATE_ACK 0x03
-#define WD_CMD_DISCONNECT 0x04
-#define WD_CMD_RESELECT 0x05
-#define WD_CMD_SEL_ATN 0x06
-#define WD_CMD_SEL 0x07
-#define WD_CMD_SEL_ATN_XFER 0x08
-#define WD_CMD_SEL_XFER 0x09
-#define WD_CMD_RESEL_RECEIVE 0x0a
-#define WD_CMD_RESEL_SEND 0x0b
-#define WD_CMD_WAIT_SEL_RECEIVE 0x0c
-#define WD_CMD_TRANS_ADDR 0x18
-#define WD_CMD_TRANS_INFO 0x20
-#define WD_CMD_TRANSFER_PAD 0x21
-#define WD_CMD_SBT_MODE 0x80
-
-/* SCSI Bus Phases */
-#define PHS_DATA_OUT 0x00
-#define PHS_DATA_IN 0x01
-#define PHS_COMMAND 0x02
-#define PHS_STATUS 0x03
-#define PHS_MESS_OUT 0x06
-#define PHS_MESS_IN 0x07
-
-/* Command Status Register definitions */
-
- /* reset state interrupts */
-#define CSR_RESET 0x00
-#define CSR_RESET_AF 0x01
-
- /* successful completion interrupts */
-#define CSR_RESELECT 0x10
-#define CSR_SELECT 0x11
-#define CSR_SEL_XFER_DONE 0x16
-#define CSR_XFER_DONE 0x18
-
- /* paused or aborted interrupts */
-#define CSR_MSGIN 0x20
-#define CSR_SDP 0x21
-#define CSR_SEL_ABORT 0x22
-#define CSR_RESEL_ABORT 0x25
-#define CSR_RESEL_ABORT_AM 0x27
-#define CSR_ABORT 0x28
-
- /* terminated interrupts */
-#define CSR_INVALID 0x40
-#define CSR_UNEXP_DISC 0x41
-#define CSR_TIMEOUT 0x42
-#define CSR_PARITY 0x43
-#define CSR_PARITY_ATN 0x44
-#define CSR_BAD_STATUS 0x45
-#define CSR_UNEXP 0x48
-
- /* service required interrupts */
-#define CSR_RESEL 0x80
-#define CSR_RESEL_AM 0x81
-#define CSR_DISC 0x85
-#define CSR_SRV_REQ 0x88
-
- /* Own ID/CDB Size register */
-#define OWNID_EAF 0x08
-#define OWNID_EHP 0x10
-#define OWNID_RAF 0x20
-#define OWNID_FS_8 0x00
-#define OWNID_FS_12 0x40
-#define OWNID_FS_16 0x80
-
- /* Control register */
-#define CTRL_HSP 0x01
-#define CTRL_HA 0x02
-#define CTRL_IDI 0x04
-#define CTRL_EDI 0x08
-#define CTRL_HHP 0x10
-#define CTRL_POLLED 0x00
-#define CTRL_BURST 0x20
-#define CTRL_BUS 0x40
-#define CTRL_DMA 0x80
-
- /* Timeout Period register */
-#define TIMEOUT_PERIOD_VALUE 20 /* results in 200 ms. */
-
- /* Synchronous Transfer Register */
-#define STR_FSS 0x80
-
- /* Destination ID register */
-#define DSTID_DPD 0x40
-#define DATA_OUT_DIR 0
-#define DATA_IN_DIR 1
-#define DSTID_SCC 0x80
-
- /* Source ID register */
-#define SRCID_MASK 0x07
-#define SRCID_SIV 0x08
-#define SRCID_DSP 0x20
-#define SRCID_ES 0x40
-#define SRCID_ER 0x80
-
-
-
-#define ILLEGAL_STATUS_BYTE 0xff
-
-
-#define DEFAULT_SX_PER 500 /* (ns) fairly safe */
-#define DEFAULT_SX_OFF 0 /* aka async */
-
-#define OPTIMUM_SX_PER 252 /* (ns) best we can do (mult-of-4) */
-#define OPTIMUM_SX_OFF 12 /* size of in2000 fifo */
-
-struct sx_period {
- unsigned int period_ns;
- uchar reg_value;
- };
-
-
-struct IN2000_hostdata {
- struct Scsi_Host *next;
- uchar chip; /* what kind of wd33c93 chip? */
- uchar microcode; /* microcode rev if 'B' */
- unsigned short io_base; /* IO port base */
- unsigned int dip_switch; /* dip switch settings */
- unsigned int hrev; /* hardware revision of card */
- volatile uchar busy[8]; /* index = target, bit = lun */
- volatile Scsi_Cmnd *input_Q; /* commands waiting to be started */
- volatile Scsi_Cmnd *selecting; /* trying to select this command */
- volatile Scsi_Cmnd *connected; /* currently connected command */
- volatile Scsi_Cmnd *disconnected_Q;/* commands waiting for reconnect */
- uchar state; /* what we are currently doing */
- uchar fifo; /* what the FIFO is up to */
- uchar level2; /* extent to which Level-2 commands are used */
- uchar disconnect; /* disconnect/reselect policy */
- unsigned int args; /* set from command-line argument */
- uchar incoming_msg[8]; /* filled during message_in phase */
- int incoming_ptr; /* mainly used with EXTENDED messages */
- uchar outgoing_msg[8]; /* send this during next message_out */
- int outgoing_len; /* length of outgoing message */
- unsigned int default_sx_per; /* default transfer period for SCSI bus */
- uchar sync_xfer[8]; /* sync_xfer reg settings per target */
- uchar sync_stat[8]; /* status of sync negotiation per target */
- uchar sync_off; /* bit mask: don't use sync with these targets */
-#ifdef PROC_INTERFACE
- uchar proc; /* bit mask: what's in proc output */
-#ifdef PROC_STATISTICS
- unsigned long cmd_cnt[8]; /* # of commands issued per target */
- unsigned long int_cnt; /* # of interrupts serviced */
- unsigned long disc_allowed_cnt[8]; /* # of disconnects allowed per target */
- unsigned long disc_done_cnt[8]; /* # of disconnects done per target*/
-#endif
-#endif
- };
-
-
-/* defines for hostdata->chip */
-
-#define C_WD33C93 0
-#define C_WD33C93A 1
-#define C_WD33C93B 2
-#define C_UNKNOWN_CHIP 100
-
-/* defines for hostdata->state */
-
-#define S_UNCONNECTED 0
-#define S_SELECTING 1
-#define S_RUNNING_LEVEL2 2
-#define S_CONNECTED 3
-#define S_PRE_TMP_DISC 4
-#define S_PRE_CMP_DISC 5
-
-/* defines for hostdata->fifo */
-
-#define FI_FIFO_UNUSED 0
-#define FI_FIFO_READING 1
-#define FI_FIFO_WRITING 2
-
-/* defines for hostdata->level2 */
-/* NOTE: only the first 3 are trustworthy at this point -
- * having trouble when more than 1 device is reading/writing
- * at the same time...
- */
-
-#define L2_NONE 0 /* no combination commands - we get lots of ints */
-#define L2_SELECT 1 /* start with SEL_ATN_XFER, but never resume it */
-#define L2_BASIC 2 /* resume after STATUS ints & RDP messages */
-#define L2_DATA 3 /* resume after DATA_IN/OUT ints */
-#define L2_MOST 4 /* resume after anything except a RESELECT int */
-#define L2_RESELECT 5 /* resume after everything, including RESELECT ints */
-#define L2_ALL 6 /* always resume */
-
-/* defines for hostdata->disconnect */
-
-#define DIS_NEVER 0
-#define DIS_ADAPTIVE 1
-#define DIS_ALWAYS 2
-
-/* defines for hostdata->args */
-
-#define DB_TEST 1<<0
-#define DB_FIFO 1<<1
-#define DB_QUEUE_COMMAND 1<<2
-#define DB_EXECUTE 1<<3
-#define DB_INTR 1<<4
-#define DB_TRANSFER 1<<5
-#define DB_MASK 0x3f
-
-#define A_NO_SCSI_RESET 1<<15
-
-
-/* defines for hostdata->sync_xfer[] */
-
-#define SS_UNSET 0
-#define SS_FIRST 1
-#define SS_WAITING 2
-#define SS_SET 3
-
-/* defines for hostdata->proc */
-
-#define PR_VERSION 1<<0
-#define PR_INFO 1<<1
-#define PR_STATISTICS 1<<2
-#define PR_CONNECTED 1<<3
-#define PR_INPUTQ 1<<4
-#define PR_DISCQ 1<<5
-#define PR_TEST 1<<6
-#define PR_STOP 1<<7
-
-
-# include <linux/init.h>
-# include <linux/spinlock.h>
-# define in2000__INITFUNC(function) __initfunc(function)
-# define in2000__INIT __init
-# define in2000__INITDATA __initdata
-# define CLISPIN_LOCK(host,flags) spin_lock_irqsave(host->host_lock, flags)
-# define CLISPIN_UNLOCK(host,flags) spin_unlock_irqrestore(host->host_lock, \
- flags)
-
-static int in2000_detect(struct scsi_host_template *) in2000__INIT;
-static int in2000_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int in2000_abort(Scsi_Cmnd *);
-static void in2000_setup(char *, int *) in2000__INIT;
-static int in2000_biosparam(struct scsi_device *, struct block_device *,
- sector_t, int *);
-static int in2000_bus_reset(Scsi_Cmnd *);
-
-
-#define IN2000_CAN_Q 16
-#define IN2000_SG SG_ALL
-#define IN2000_CPL 2
-#define IN2000_HOST_ID 7
-
-#endif /* IN2000_H */
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 3/7] ultrastor: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
2016-09-19 15:50 ` [PATCH 1/7] wd7000: remove from tree Christoph Hellwig
2016-09-19 15:50 ` [PATCH 2/7] in2000: " Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 4/7] u14-34f: " Christoph Hellwig
` (5 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/scsi/Kconfig | 17 -
drivers/scsi/Makefile | 1 -
drivers/scsi/ultrastor.c | 1210 ----------------------------------------------
drivers/scsi/ultrastor.h | 80 ---
4 files changed, 1308 deletions(-)
delete mode 100644 drivers/scsi/ultrastor.c
delete mode 100644 drivers/scsi/ultrastor.h
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 543005b..57cf77f 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1425,23 +1425,6 @@ config SCSI_U14_34F_MAX_TAGS
by the driver for each probed SCSI device is reported at boot time.
This is equivalent to the "u14-34f=mq:8" boot option.
-config SCSI_ULTRASTOR
- tristate "UltraStor SCSI support"
- depends on X86 && ISA && SCSI && ISA_DMA_API
- ---help---
- This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
- adapter family. This driver is explained in section 3.12 of the
- SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/ultrastor.h>.
-
- Note that there is also another driver for the same hardware:
- "UltraStor 14F/34F support", above.
-
- To compile this driver as a module, choose M here: the
- module will be called ultrastor.
-
config SCSI_NSP32
tristate "Workbit NinjaSCSI-32Bi/UDE support"
depends on PCI && SCSI && !64BIT
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 07bf799..2e7d9ef 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -63,7 +63,6 @@ obj-$(CONFIG_SCSI_BUSLOGIC) += BusLogic.o
obj-$(CONFIG_SCSI_DPT_I2O) += dpt_i2o.o
obj-$(CONFIG_SCSI_U14_34F) += u14-34f.o
obj-$(CONFIG_SCSI_ARCMSR) += arcmsr/
-obj-$(CONFIG_SCSI_ULTRASTOR) += ultrastor.o
obj-$(CONFIG_SCSI_AHA152X) += aha152x.o
obj-$(CONFIG_SCSI_AHA1542) += aha1542.o
obj-$(CONFIG_SCSI_AHA1740) += aha1740.o
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
deleted file mode 100644
index 14e0c40..0000000
--- a/drivers/scsi/ultrastor.c
+++ /dev/null
@@ -1,1210 +0,0 @@
-/*
- * ultrastor.c Copyright (C) 1992 David B. Gentzel
- * Low-level SCSI driver for UltraStor 14F, 24F, and 34F
- * by David B. Gentzel, Whitfield Software Services, Carnegie, PA
- * (gentzel@nova.enet.dec.com)
- * scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
- * 24F and multiple command support by John F. Carr (jfc@athena.mit.edu)
- * John's work modified by Caleb Epstein (cae@jpmorgan.com) and
- * Eric Youngdale (ericy@cais.com).
- * Thanks to UltraStor for providing the necessary documentation
- *
- * This is an old driver, for the 14F and 34F you should be using the
- * u14-34f driver instead.
- */
-
-/*
- * TODO:
- * 1. Find out why scatter/gather is limited to 16 requests per command.
- * This is fixed, at least on the 24F, as of version 1.12 - CAE.
- * 2. Look at command linking (mscp.command_link and
- * mscp.command_link_id). (Does not work with many disks,
- * and no performance increase. ERY).
- * 3. Allow multiple adapters.
- */
-
-/*
- * NOTES:
- * The UltraStor 14F, 24F, and 34F are a family of intelligent, high
- * performance SCSI-2 host adapters. They all support command queueing
- * and scatter/gather I/O. Some of them can also emulate the standard
- * WD1003 interface for use with OS's which don't support SCSI. Here
- * is the scoop on the various models:
- * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation.
- * 14N - ISA HA with floppy support. I think that this is a non-DMA
- * HA. Nothing further known.
- * 24F - EISA Bus Master HA with floppy support and WD1003 emulation.
- * 34F - VL-Bus Bus Master HA with floppy support (no WD1003 emulation).
- *
- * The 14F, 24F, and 34F are supported by this driver.
- *
- * Places flagged with a triple question-mark are things which are either
- * unfinished, questionable, or wrong.
- */
-
-/* Changes from version 1.11 alpha to 1.12
- *
- * Increased the size of the scatter-gather list to 33 entries for
- * the 24F adapter (it was 16). I don't have the specs for the 14F
- * or the 34F, so they may support larger s-g lists as well.
- *
- * Caleb Epstein <cae@jpmorgan.com>
- */
-
-/* Changes from version 1.9 to 1.11
- *
- * Patches to bring this driver up to speed with the default kernel
- * driver which supports only the 14F and 34F adapters. This version
- * should compile cleanly into 0.99.13, 0.99.12 and probably 0.99.11.
- *
- * Fixes from Eric Youngdale to fix a few possible race conditions and
- * several problems with bit testing operations (insufficient
- * parentheses).
- *
- * Removed the ultrastor_abort() and ultrastor_reset() functions
- * (enclosed them in #if 0 / #endif). These functions, at least on
- * the 24F, cause the SCSI bus to do odd things and generally lead to
- * kernel panics and machine hangs. This is like the Adaptec code.
- *
- * Use check/snarf_region for 14f, 34f to avoid I/O space address conflicts.
- */
-
-/* Changes from version 1.8 to version 1.9
- *
- * 0.99.11 patches (cae@jpmorgan.com) */
-
-/* Changes from version 1.7 to version 1.8
- *
- * Better error reporting.
- */
-
-/* Changes from version 1.6 to version 1.7
- *
- * Removed CSIR command code.
- *
- * Better race condition avoidance (xchgb function added).
- *
- * Set ICM and OGM status to zero at probe (24F)
- *
- * reset sends soft reset to UltraStor adapter
- *
- * reset adapter if adapter interrupts with an invalid MSCP address
- *
- * handle aborted command interrupt (24F)
- *
- */
-
-/* Changes from version 1.5 to version 1.6:
- *
- * Read MSCP address from ICM _before_ clearing the interrupt flag.
- * This fixes a race condition.
- */
-
-/* Changes from version 1.4 to version 1.5:
- *
- * Abort now calls done when multiple commands are enabled.
- *
- * Clear busy when aborted command finishes, not when abort is called.
- *
- * More debugging messages for aborts.
- */
-
-/* Changes from version 1.3 to version 1.4:
- *
- * Enable automatic request of sense data on error (requires newer version
- * of scsi.c to be useful).
- *
- * Fix PORT_OVERRIDE for 14F.
- *
- * Fix abort and reset to work properly (config.aborted wasn't cleared
- * after it was tested, so after a command abort no further commands would
- * work).
- *
- * Boot time test to enable SCSI bus reset (defaults to not allowing reset).
- *
- * Fix test for OGM busy -- the busy bit is in different places on the 24F.
- *
- * Release ICM slot by clearing first byte on 24F.
- */
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/stddef.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/stat.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#define ULTRASTOR_PRIVATE /* Get the private stuff from ultrastor.h */
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "ultrastor.h"
-
-#define FALSE 0
-#define TRUE 1
-
-#ifndef ULTRASTOR_DEBUG
-#define ULTRASTOR_DEBUG (UD_ABORT|UD_CSIR|UD_RESET)
-#endif
-
-#define VERSION "1.12"
-
-#define PACKED __attribute__((packed))
-#define ALIGNED(x) __attribute__((aligned(x)))
-
-
-/* The 14F uses an array of 4-byte ints for its scatter/gather list.
- The data can be unaligned, but need not be. It's easier to give
- the list normal alignment since it doesn't need to fit into a
- packed structure. */
-
-typedef struct {
- u32 address;
- u32 num_bytes;
-} ultrastor_sg_list;
-
-
-/* MailBox SCSI Command Packet. Basic command structure for communicating
- with controller. */
-struct mscp {
- unsigned char opcode: 3; /* type of command */
- unsigned char xdir: 2; /* data transfer direction */
- unsigned char dcn: 1; /* disable disconnect */
- unsigned char ca: 1; /* use cache (if available) */
- unsigned char sg: 1; /* scatter/gather operation */
- unsigned char target_id: 3; /* target SCSI id */
- unsigned char ch_no: 2; /* SCSI channel (always 0 for 14f) */
- unsigned char lun: 3; /* logical unit number */
- unsigned int transfer_data PACKED; /* transfer data pointer */
- unsigned int transfer_data_length PACKED; /* length in bytes */
- unsigned int command_link PACKED; /* for linking command chains */
- unsigned char scsi_command_link_id; /* identifies command in chain */
- unsigned char number_of_sg_list; /* (if sg is set) 8 bytes per list */
- unsigned char length_of_sense_byte;
- unsigned char length_of_scsi_cdbs; /* 6, 10, or 12 */
- unsigned char scsi_cdbs[12]; /* SCSI commands */
- unsigned char adapter_status; /* non-zero indicates HA error */
- unsigned char target_status; /* non-zero indicates target error */
- u32 sense_data PACKED;
- /* The following fields are for software only. They are included in
- the MSCP structure because they are associated with SCSI requests. */
- void (*done) (struct scsi_cmnd *);
- struct scsi_cmnd *SCint;
- ultrastor_sg_list sglist[ULTRASTOR_24F_MAX_SG]; /* use larger size for 24F */
-};
-
-
-/* Port addresses (relative to the base address) */
-#define U14F_PRODUCT_ID(port) ((port) + 0x4)
-#define CONFIG(port) ((port) + 0x6)
-
-/* Port addresses relative to the doorbell base address. */
-#define LCL_DOORBELL_MASK(port) ((port) + 0x0)
-#define LCL_DOORBELL_INTR(port) ((port) + 0x1)
-#define SYS_DOORBELL_MASK(port) ((port) + 0x2)
-#define SYS_DOORBELL_INTR(port) ((port) + 0x3)
-
-
-/* Used to store configuration info read from config i/o registers. Most of
- this is not used yet, but might as well save it.
-
- This structure also holds port addresses that are not at the same offset
- on the 14F and 24F.
-
- This structure holds all data that must be duplicated to support multiple
- adapters. */
-
-static struct ultrastor_config
-{
- unsigned short port_address; /* base address of card */
- unsigned short doorbell_address; /* base address of doorbell CSRs */
- unsigned short ogm_address; /* base address of OGM */
- unsigned short icm_address; /* base address of ICM */
- const void *bios_segment;
- unsigned char interrupt: 4;
- unsigned char dma_channel: 3;
- unsigned char bios_drive_number: 1;
- unsigned char heads;
- unsigned char sectors;
- unsigned char ha_scsi_id: 3;
- unsigned char subversion: 4;
- unsigned char revision;
- /* The slot number is used to distinguish the 24F (slot != 0) from
- the 14F and 34F (slot == 0). */
- unsigned char slot;
-
-#ifdef PRINT_U24F_VERSION
- volatile int csir_done;
-#endif
-
- /* A pool of MSCP structures for this adapter, and a bitmask of
- busy structures. (If ULTRASTOR_14F_MAX_CMDS == 1, a 1 byte
- busy flag is used instead.) */
-
-#if ULTRASTOR_MAX_CMDS == 1
- unsigned char mscp_busy;
-#else
- unsigned long mscp_free;
-#endif
- volatile unsigned char aborted[ULTRASTOR_MAX_CMDS];
- struct mscp mscp[ULTRASTOR_MAX_CMDS];
-} config = {0};
-
-/* Set this to 1 to reset the SCSI bus on error. */
-static int ultrastor_bus_reset;
-
-
-/* Allowed BIOS base addresses (NULL indicates reserved) */
-static const void *const bios_segment_table[8] = {
- NULL, (void *)0xC4000, (void *)0xC8000, (void *)0xCC000,
- (void *)0xD0000, (void *)0xD4000, (void *)0xD8000, (void *)0xDC000,
-};
-
-/* Allowed IRQs for 14f */
-static const unsigned char interrupt_table_14f[4] = { 15, 14, 11, 10 };
-
-/* Allowed DMA channels for 14f (0 indicates reserved) */
-static const unsigned char dma_channel_table_14f[4] = { 5, 6, 7, 0 };
-
-/* Head/sector mappings allowed by 14f */
-static const struct {
- unsigned char heads;
- unsigned char sectors;
-} mapping_table[4] = { { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 } };
-
-#ifndef PORT_OVERRIDE
-/* ??? A probe of address 0x310 screws up NE2000 cards */
-static const unsigned short ultrastor_ports_14f[] = {
- 0x330, 0x340, /*0x310,*/ 0x230, 0x240, 0x210, 0x130, 0x140,
-};
-#endif
-
-static void ultrastor_interrupt(void *);
-static irqreturn_t do_ultrastor_interrupt(int, void *);
-static inline void build_sg_list(struct mscp *, struct scsi_cmnd *SCpnt);
-
-
-/* Always called with host lock held */
-
-static inline int find_and_clear_bit_16(unsigned long *field)
-{
- int rv;
-
- if (*field == 0)
- panic("No free mscp");
-
- asm volatile (
- "xorl %0,%0\n\t"
- "0: bsfw %1,%w0\n\t"
- "btr %0,%1\n\t"
- "jnc 0b"
- : "=&r" (rv), "+m" (*field) :);
-
- return rv;
-}
-
-/* This has been re-implemented with the help of Richard Earnshaw,
- <rwe@pegasus.esprit.ec.org> and works with gcc-2.5.8 and gcc-2.6.0.
- The instability noted by jfc below appears to be a bug in
- gcc-2.5.x when compiling w/o optimization. --Caleb
-
- This asm is fragile: it doesn't work without the casts and it may
- not work without optimization. Maybe I should add a swap builtin
- to gcc. --jfc */
-static inline unsigned char xchgb(unsigned char reg,
- volatile unsigned char *mem)
-{
- __asm__ ("xchgb %0,%1" : "=q" (reg), "=m" (*mem) : "0" (reg));
- return reg;
-}
-
-#if ULTRASTOR_DEBUG & (UD_COMMAND | UD_ABORT)
-
-/* Always called with the host lock held */
-static void log_ultrastor_abort(struct ultrastor_config *config,
- int command)
-{
- static char fmt[80] = "abort %d (%x); MSCP free pool: %x;";
- int i;
-
- for (i = 0; i < ULTRASTOR_MAX_CMDS; i++)
- {
- fmt[20 + i*2] = ' ';
- if (! (config->mscp_free & (1 << i)))
- fmt[21 + i*2] = '0' + config->mscp[i].target_id;
- else
- fmt[21 + i*2] = '-';
- }
- fmt[20 + ULTRASTOR_MAX_CMDS * 2] = '\n';
- fmt[21 + ULTRASTOR_MAX_CMDS * 2] = 0;
- printk(fmt, command, &config->mscp[command], config->mscp_free);
-
-}
-#endif
-
-static int ultrastor_14f_detect(struct scsi_host_template * tpnt)
-{
- size_t i;
- unsigned char in_byte, version_byte = 0;
- struct config_1 {
- unsigned char bios_segment: 3;
- unsigned char removable_disks_as_fixed: 1;
- unsigned char interrupt: 2;
- unsigned char dma_channel: 2;
- } config_1;
- struct config_2 {
- unsigned char ha_scsi_id: 3;
- unsigned char mapping_mode: 2;
- unsigned char bios_drive_number: 1;
- unsigned char tfr_port: 2;
- } config_2;
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: called\n");
-#endif
-
- /* If a 24F has already been configured, don't look for a 14F. */
- if (config.bios_segment)
- return FALSE;
-
-#ifdef PORT_OVERRIDE
- if(!request_region(PORT_OVERRIDE, 0xc, "ultrastor")) {
- printk("Ultrastor I/O space already in use\n");
- return FALSE;
- };
- config.port_address = PORT_OVERRIDE;
-#else
- for (i = 0; i < ARRAY_SIZE(ultrastor_ports_14f); i++) {
- if(!request_region(ultrastor_ports_14f[i], 0x0c, "ultrastor")) continue;
- config.port_address = ultrastor_ports_14f[i];
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: testing port address %03X\n", config.port_address);
-#endif
-
- in_byte = inb(U14F_PRODUCT_ID(config.port_address));
- if (in_byte != US14F_PRODUCT_ID_0) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
-# ifdef PORT_OVERRIDE
- printk("US14F: detect: wrong product ID 0 - %02X\n", in_byte);
-# else
- printk("US14F: detect: no adapter at port %03X\n", config.port_address);
-# endif
-#endif
-#ifdef PORT_OVERRIDE
- goto out_release_port;
-#else
- release_region(config.port_address, 0x0c);
- continue;
-#endif
- }
- in_byte = inb(U14F_PRODUCT_ID(config.port_address) + 1);
- /* Only upper nibble is significant for Product ID 1 */
- if ((in_byte & 0xF0) != US14F_PRODUCT_ID_1) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
-# ifdef PORT_OVERRIDE
- printk("US14F: detect: wrong product ID 1 - %02X\n", in_byte);
-# else
- printk("US14F: detect: no adapter at port %03X\n", config.port_address);
-# endif
-#endif
-#ifdef PORT_OVERRIDE
- goto out_release_port;
-#else
- release_region(config.port_address, 0x0c);
- continue;
-#endif
- }
- version_byte = in_byte;
-#ifndef PORT_OVERRIDE
- break;
- }
- if (i == ARRAY_SIZE(ultrastor_ports_14f)) {
-# if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: no port address found!\n");
-# endif
- /* all ports probed already released - we can just go straight out */
- return FALSE;
- }
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: adapter found at port address %03X\n",
- config.port_address);
-#endif
-
- /* Set local doorbell mask to disallow bus reset unless
- ultrastor_bus_reset is true. */
- outb(ultrastor_bus_reset ? 0xc2 : 0x82, LCL_DOORBELL_MASK(config.port_address));
-
- /* All above tests passed, must be the right thing. Get some useful
- info. */
-
- /* Register the I/O space that we use */
-
- *(char *)&config_1 = inb(CONFIG(config.port_address + 0));
- *(char *)&config_2 = inb(CONFIG(config.port_address + 1));
- config.bios_segment = bios_segment_table[config_1.bios_segment];
- config.doorbell_address = config.port_address;
- config.ogm_address = config.port_address + 0x8;
- config.icm_address = config.port_address + 0xC;
- config.interrupt = interrupt_table_14f[config_1.interrupt];
- config.ha_scsi_id = config_2.ha_scsi_id;
- config.heads = mapping_table[config_2.mapping_mode].heads;
- config.sectors = mapping_table[config_2.mapping_mode].sectors;
- config.bios_drive_number = config_2.bios_drive_number;
- config.subversion = (version_byte & 0x0F);
- if (config.subversion == U34F)
- config.dma_channel = 0;
- else
- config.dma_channel = dma_channel_table_14f[config_1.dma_channel];
-
- if (!config.bios_segment) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: not detected.\n");
-#endif
- goto out_release_port;
- }
-
- /* Final consistency check, verify previous info. */
- if (config.subversion != U34F)
- if (!config.dma_channel || !(config_2.tfr_port & 0x2)) {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: consistency check failed\n");
-#endif
- goto out_release_port;
- }
-
- /* If we were TRULY paranoid, we could issue a host adapter inquiry
- command here and verify the data returned. But frankly, I'm
- exhausted! */
-
- /* Finally! Now I'm satisfied... */
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US14F: detect: detect succeeded\n"
- " Port address: %03X\n"
- " BIOS segment: %05X\n"
- " Interrupt: %u\n"
- " DMA channel: %u\n"
- " H/A SCSI ID: %u\n"
- " Subversion: %u\n",
- config.port_address, config.bios_segment, config.interrupt,
- config.dma_channel, config.ha_scsi_id, config.subversion);
-#endif
- tpnt->this_id = config.ha_scsi_id;
- tpnt->unchecked_isa_dma = (config.subversion != U34F);
-
-#if ULTRASTOR_MAX_CMDS > 1
- config.mscp_free = ~0;
-#endif
-
- /*
- * Brrr, &config.mscp[0].SCint->host) it is something magical....
- * XXX and FIXME
- */
- if (request_irq(config.interrupt, do_ultrastor_interrupt, 0, "Ultrastor", &config.mscp[0].SCint->device->host)) {
- printk("Unable to allocate IRQ%u for UltraStor controller.\n",
- config.interrupt);
- goto out_release_port;
- }
- if (config.dma_channel && request_dma(config.dma_channel,"Ultrastor")) {
- printk("Unable to allocate DMA channel %u for UltraStor controller.\n",
- config.dma_channel);
- free_irq(config.interrupt, NULL);
- goto out_release_port;
- }
- tpnt->sg_tablesize = ULTRASTOR_14F_MAX_SG;
- printk("UltraStor driver version" VERSION ". Using %d SG lists.\n",
- ULTRASTOR_14F_MAX_SG);
-
- return TRUE;
-out_release_port:
- release_region(config.port_address, 0x0c);
- return FALSE;
-}
-
-static int ultrastor_24f_detect(struct scsi_host_template * tpnt)
-{
- int i;
- struct Scsi_Host * shpnt = NULL;
-
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US24F: detect");
-#endif
-
- /* probe each EISA slot at slot address C80 */
- for (i = 1; i < 15; i++)
- {
- unsigned char config_1, config_2;
- unsigned short addr = (i << 12) | ULTRASTOR_24F_PORT;
-
- if (inb(addr) != US24F_PRODUCT_ID_0 &&
- inb(addr+1) != US24F_PRODUCT_ID_1 &&
- inb(addr+2) != US24F_PRODUCT_ID_2)
- continue;
-
- config.revision = inb(addr+3);
- config.slot = i;
- if (! (inb(addr+4) & 1))
- {
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("U24F: found disabled card in slot %u\n", i);
-#endif
- continue;
- }
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("U24F: found card in slot %u\n", i);
-#endif
- config_1 = inb(addr + 5);
- config.bios_segment = bios_segment_table[config_1 & 7];
- switch(config_1 >> 4)
- {
- case 1:
- config.interrupt = 15;
- break;
- case 2:
- config.interrupt = 14;
- break;
- case 4:
- config.interrupt = 11;
- break;
- case 8:
- config.interrupt = 10;
- break;
- default:
- printk("U24F: invalid IRQ\n");
- return FALSE;
- }
-
- /* BIOS addr set */
- /* base port set */
- config.port_address = addr;
- config.doorbell_address = addr + 12;
- config.ogm_address = addr + 0x17;
- config.icm_address = addr + 0x1C;
- config_2 = inb(addr + 7);
- config.ha_scsi_id = config_2 & 7;
- config.heads = mapping_table[(config_2 >> 3) & 3].heads;
- config.sectors = mapping_table[(config_2 >> 3) & 3].sectors;
-#if (ULTRASTOR_DEBUG & UD_DETECT)
- printk("US24F: detect: detect succeeded\n"
- " Port address: %03X\n"
- " BIOS segment: %05X\n"
- " Interrupt: %u\n"
- " H/A SCSI ID: %u\n",
- config.port_address, config.bios_segment,
- config.interrupt, config.ha_scsi_id);
-#endif
- tpnt->this_id = config.ha_scsi_id;
- tpnt->unchecked_isa_dma = 0;
- tpnt->sg_tablesize = ULTRASTOR_24F_MAX_SG;
-
- shpnt = scsi_register(tpnt, 0);
- if (!shpnt) {
- printk(KERN_WARNING "(ultrastor:) Could not register scsi device. Aborting registration.\n");
- free_irq(config.interrupt, do_ultrastor_interrupt);
- return FALSE;
- }
-
- if (request_irq(config.interrupt, do_ultrastor_interrupt, 0, "Ultrastor", shpnt))
- {
- printk("Unable to allocate IRQ%u for UltraStor controller.\n",
- config.interrupt);
- return FALSE;
- }
-
- shpnt->irq = config.interrupt;
- shpnt->dma_channel = config.dma_channel;
- shpnt->io_port = config.port_address;
-
-#if ULTRASTOR_MAX_CMDS > 1
- config.mscp_free = ~0;
-#endif
- /* Mark ICM and OGM free */
- outb(0, addr + 0x16);
- outb(0, addr + 0x1B);
-
- /* Set local doorbell mask to disallow bus reset unless
- ultrastor_bus_reset is true. */
- outb(ultrastor_bus_reset ? 0xc2 : 0x82, LCL_DOORBELL_MASK(addr+12));
- outb(0x02, SYS_DOORBELL_MASK(addr+12));
- printk("UltraStor driver version " VERSION ". Using %d SG lists.\n",
- tpnt->sg_tablesize);
- return TRUE;
- }
- return FALSE;
-}
-
-static int ultrastor_detect(struct scsi_host_template * tpnt)
-{
- tpnt->proc_name = "ultrastor";
- return ultrastor_14f_detect(tpnt) || ultrastor_24f_detect(tpnt);
-}
-
-static int ultrastor_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, NULL);
- if (shost->dma_channel != 0xff)
- free_dma(shost->dma_channel);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- scsi_unregister(shost);
- return 0;
-}
-
-static const char *ultrastor_info(struct Scsi_Host * shpnt)
-{
- static char buf[64];
-
- if (config.slot)
- sprintf(buf, "UltraStor 24F SCSI @ Slot %u IRQ%u",
- config.slot, config.interrupt);
- else if (config.subversion)
- sprintf(buf, "UltraStor 34F SCSI @ Port %03X BIOS %05X IRQ%u",
- config.port_address, (int)config.bios_segment,
- config.interrupt);
- else
- sprintf(buf, "UltraStor 14F SCSI @ Port %03X BIOS %05X IRQ%u DMA%u",
- config.port_address, (int)config.bios_segment,
- config.interrupt, config.dma_channel);
- return buf;
-}
-
-static inline void build_sg_list(struct mscp *mscp, struct scsi_cmnd *SCpnt)
-{
- struct scatterlist *sg;
- long transfer_length = 0;
- int i, max;
-
- max = scsi_sg_count(SCpnt);
- scsi_for_each_sg(SCpnt, sg, max, i) {
- mscp->sglist[i].address = isa_page_to_bus(sg_page(sg)) + sg->offset;
- mscp->sglist[i].num_bytes = sg->length;
- transfer_length += sg->length;
- }
- mscp->number_of_sg_list = max;
- mscp->transfer_data = isa_virt_to_bus(mscp->sglist);
- /* ??? May not be necessary. Docs are unclear as to whether transfer
- length field is ignored or whether it should be set to the total
- number of bytes of the transfer. */
- mscp->transfer_data_length = transfer_length;
-}
-
-static int ultrastor_queuecommand_lck(struct scsi_cmnd *SCpnt,
- void (*done) (struct scsi_cmnd *))
-{
- struct mscp *my_mscp;
-#if ULTRASTOR_MAX_CMDS > 1
- int mscp_index;
-#endif
- unsigned int status;
-
- /* Next test is for debugging; "can't happen" */
- if ((config.mscp_free & ((1U << ULTRASTOR_MAX_CMDS) - 1)) == 0)
- panic("ultrastor_queuecommand: no free MSCP\n");
- mscp_index = find_and_clear_bit_16(&config.mscp_free);
-
- /* Has the command been aborted? */
- if (xchgb(0xff, &config.aborted[mscp_index]) != 0)
- {
- status = DID_ABORT << 16;
- goto aborted;
- }
-
- my_mscp = &config.mscp[mscp_index];
-
- *(unsigned char *)my_mscp = OP_SCSI | (DTD_SCSI << 3);
-
- /* Tape drives don't work properly if the cache is used. The SCSI
- READ command for a tape doesn't have a block offset, and the adapter
- incorrectly assumes that all reads from the tape read the same
- blocks. Results will depend on read buffer size and other disk
- activity.
-
- ??? Which other device types should never use the cache? */
- my_mscp->ca = SCpnt->device->type != TYPE_TAPE;
- my_mscp->target_id = SCpnt->device->id;
- my_mscp->ch_no = 0;
- my_mscp->lun = SCpnt->device->lun;
- if (scsi_sg_count(SCpnt)) {
- /* Set scatter/gather flag in SCSI command packet */
- my_mscp->sg = TRUE;
- build_sg_list(my_mscp, SCpnt);
- } else {
- /* Unset scatter/gather flag in SCSI command packet */
- my_mscp->sg = FALSE;
- my_mscp->transfer_data = isa_virt_to_bus(scsi_sglist(SCpnt));
- my_mscp->transfer_data_length = scsi_bufflen(SCpnt);
- }
- my_mscp->command_link = 0; /*???*/
- my_mscp->scsi_command_link_id = 0; /*???*/
- my_mscp->length_of_sense_byte = SCSI_SENSE_BUFFERSIZE;
- my_mscp->length_of_scsi_cdbs = SCpnt->cmd_len;
- memcpy(my_mscp->scsi_cdbs, SCpnt->cmnd, my_mscp->length_of_scsi_cdbs);
- my_mscp->adapter_status = 0;
- my_mscp->target_status = 0;
- my_mscp->sense_data = isa_virt_to_bus(&SCpnt->sense_buffer);
- my_mscp->done = done;
- my_mscp->SCint = SCpnt;
- SCpnt->host_scribble = (unsigned char *)my_mscp;
-
- /* Find free OGM slot. On 24F, look for OGM status byte == 0.
- On 14F and 34F, wait for local interrupt pending flag to clear.
-
- FIXME: now we are using new_eh we should punt here and let the
- midlayer sort it out */
-
-retry:
- if (config.slot)
- while (inb(config.ogm_address - 1) != 0 && config.aborted[mscp_index] == 0xff)
- barrier();
-
- /* else??? */
-
- while ((inb(LCL_DOORBELL_INTR(config.doorbell_address)) & (config.slot ? 2 : 1)) && config.aborted[mscp_index] == 0xff)
- barrier();
-
- /* To avoid race conditions, keep the code to write to the adapter
- atomic. This simplifies the abort code. Right now the
- scsi mid layer has the host_lock already held
- */
-
- if (inb(LCL_DOORBELL_INTR(config.doorbell_address)) & (config.slot ? 2 : 1))
- goto retry;
-
- status = xchgb(0, &config.aborted[mscp_index]);
- if (status != 0xff) {
-
-#if ULTRASTOR_DEBUG & (UD_COMMAND | UD_ABORT)
- printk("USx4F: queuecommand: aborted\n");
-#if ULTRASTOR_MAX_CMDS > 1
- log_ultrastor_abort(&config, mscp_index);
-#endif
-#endif
- status <<= 16;
-
- aborted:
- set_bit(mscp_index, &config.mscp_free);
- /* If the driver queues commands, call the done proc here. Otherwise
- return an error. */
-#if ULTRASTOR_MAX_CMDS > 1
- SCpnt->result = status;
- done(SCpnt);
- return 0;
-#else
- return status;
-#endif
- }
-
- /* Store pointer in OGM address bytes */
- outl(isa_virt_to_bus(my_mscp), config.ogm_address);
-
- /* Issue OGM interrupt */
- if (config.slot) {
- /* Write OGM command register on 24F */
- outb(1, config.ogm_address - 1);
- outb(0x2, LCL_DOORBELL_INTR(config.doorbell_address));
- } else {
- outb(0x1, LCL_DOORBELL_INTR(config.doorbell_address));
- }
-
-#if (ULTRASTOR_DEBUG & UD_COMMAND)
- printk("USx4F: queuecommand: returning\n");
-#endif
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(ultrastor_queuecommand)
-
-/* This code must deal with 2 cases:
-
- 1. The command has not been written to the OGM. In this case, set
- the abort flag and return.
-
- 2. The command has been written to the OGM and is stuck somewhere in
- the adapter.
-
- 2a. On a 24F, ask the adapter to abort the command. It will interrupt
- when it does.
-
- 2b. Call the command's done procedure.
-
- */
-
-static int ultrastor_abort(struct scsi_cmnd *SCpnt)
-{
-#if ULTRASTOR_DEBUG & UD_ABORT
- char out[108];
- unsigned char icm_status = 0, ogm_status = 0;
- unsigned int icm_addr = 0, ogm_addr = 0;
-#endif
- unsigned int mscp_index;
- unsigned char old_aborted;
- unsigned long flags;
- void (*done)(struct scsi_cmnd *);
- struct Scsi_Host *host = SCpnt->device->host;
-
- if(config.slot)
- return FAILED; /* Do not attempt an abort for the 24f */
-
- /* Simple consistency checking */
- if(!SCpnt->host_scribble)
- return FAILED;
-
- mscp_index = ((struct mscp *)SCpnt->host_scribble) - config.mscp;
- if (mscp_index >= ULTRASTOR_MAX_CMDS)
- panic("Ux4F aborting invalid MSCP");
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- if (config.slot)
- {
- int port0 = (config.slot << 12) | 0xc80;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(host->host_lock, flags);
- strcpy(out, "OGM %d:%x ICM %d:%x ports: ");
- for (i = 0; i < 16; i++)
- {
- unsigned char p = inb(port0 + i);
- out[28 + i * 3] = "0123456789abcdef"[p >> 4];
- out[29 + i * 3] = "0123456789abcdef"[p & 15];
- out[30 + i * 3] = ' ';
- }
- out[28 + i * 3] = '\n';
- out[29 + i * 3] = 0;
- ogm_status = inb(port0 + 22);
- ogm_addr = (unsigned int)isa_bus_to_virt(inl(port0 + 23));
- icm_status = inb(port0 + 27);
- icm_addr = (unsigned int)isa_bus_to_virt(inl(port0 + 28));
- spin_unlock_irqrestore(host->host_lock, flags);
- }
-
- /* First check to see if an interrupt is pending. I suspect the SiS
- chipset loses interrupts. (I also suspect is mangles data, but
- one bug at a time... */
- if (config.slot ? inb(config.icm_address - 1) == 2 :
- (inb(SYS_DOORBELL_INTR(config.doorbell_address)) & 1))
- {
- printk("Ux4F: abort while completed command pending\n");
-
- spin_lock_irqsave(host->host_lock, flags);
- /* FIXME: Ewww... need to think about passing host around properly */
- ultrastor_interrupt(NULL);
- spin_unlock_irqrestore(host->host_lock, flags);
- return SUCCESS;
- }
-#endif
-
- old_aborted = xchgb(DID_ABORT, &config.aborted[mscp_index]);
-
- /* aborted == 0xff is the signal that queuecommand has not yet sent
- the command. It will notice the new abort flag and fail. */
- if (old_aborted == 0xff)
- return SUCCESS;
-
- /* On 24F, send an abort MSCP request. The adapter will interrupt
- and the interrupt handler will call done. */
- if (config.slot && inb(config.ogm_address - 1) == 0)
- {
- unsigned long flags;
-
- spin_lock_irqsave(host->host_lock, flags);
- outl(isa_virt_to_bus(&config.mscp[mscp_index]), config.ogm_address);
- udelay(8);
- outb(0x80, config.ogm_address - 1);
- outb(0x2, LCL_DOORBELL_INTR(config.doorbell_address));
-#if ULTRASTOR_DEBUG & UD_ABORT
- log_ultrastor_abort(&config, mscp_index);
- printk(out, ogm_status, ogm_addr, icm_status, icm_addr);
-#endif
- spin_unlock_irqrestore(host->host_lock, flags);
- /* FIXME: add a wait for the abort to complete */
- return SUCCESS;
- }
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- log_ultrastor_abort(&config, mscp_index);
-#endif
-
- /* Can't request a graceful abort. Either this is not a 24F or
- the OGM is busy. Don't free the command -- the adapter might
- still be using it. Setting SCint = 0 causes the interrupt
- handler to ignore the command. */
-
- /* FIXME - devices that implement soft resets will still be running
- the command after a bus reset. We would probably rather leave
- the command in the queue. The upper level code will automatically
- leave the command in the active state instead of requeueing it. ERY */
-
-#if ULTRASTOR_DEBUG & UD_ABORT
- if (config.mscp[mscp_index].SCint != SCpnt)
- printk("abort: command mismatch, %p != %p\n",
- config.mscp[mscp_index].SCint, SCpnt);
-#endif
- if (config.mscp[mscp_index].SCint == NULL)
- return FAILED;
-
- if (config.mscp[mscp_index].SCint != SCpnt) panic("Bad abort");
- config.mscp[mscp_index].SCint = NULL;
- done = config.mscp[mscp_index].done;
- config.mscp[mscp_index].done = NULL;
- SCpnt->result = DID_ABORT << 16;
-
- /* Take the host lock to guard against scsi layer re-entry */
- done(SCpnt);
-
- /* Need to set a timeout here in case command never completes. */
- return SUCCESS;
-}
-
-static int ultrastor_host_reset(struct scsi_cmnd * SCpnt)
-{
- unsigned long flags;
- int i;
- struct Scsi_Host *host = SCpnt->device->host;
-
-#if (ULTRASTOR_DEBUG & UD_RESET)
- printk("US14F: reset: called\n");
-#endif
-
- if(config.slot)
- return FAILED;
-
- spin_lock_irqsave(host->host_lock, flags);
- /* Reset the adapter and SCSI bus. The SCSI bus reset can be
- inhibited by clearing ultrastor_bus_reset before probe. */
- outb(0xc0, LCL_DOORBELL_INTR(config.doorbell_address));
- if (config.slot)
- {
- outb(0, config.ogm_address - 1);
- outb(0, config.icm_address - 1);
- }
-
-#if ULTRASTOR_MAX_CMDS == 1
- if (config.mscp_busy && config.mscp->done && config.mscp->SCint)
- {
- config.mscp->SCint->result = DID_RESET << 16;
- config.mscp->done(config.mscp->SCint);
- }
- config.mscp->SCint = 0;
-#else
- for (i = 0; i < ULTRASTOR_MAX_CMDS; i++)
- {
- if (! (config.mscp_free & (1 << i)) &&
- config.mscp[i].done && config.mscp[i].SCint)
- {
- config.mscp[i].SCint->result = DID_RESET << 16;
- config.mscp[i].done(config.mscp[i].SCint);
- config.mscp[i].done = NULL;
- }
- config.mscp[i].SCint = NULL;
- }
-#endif
-
- /* FIXME - if the device implements soft resets, then the command
- will still be running. ERY
-
- Even bigger deal with new_eh!
- */
-
- memset((unsigned char *)config.aborted, 0, sizeof config.aborted);
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = 0;
-#else
- config.mscp_free = ~0;
-#endif
-
- spin_unlock_irqrestore(host->host_lock, flags);
- return SUCCESS;
-
-}
-
-int ultrastor_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int * dkinfo)
-{
- int size = capacity;
- unsigned int s = config.heads * config.sectors;
-
- dkinfo[0] = config.heads;
- dkinfo[1] = config.sectors;
- dkinfo[2] = size / s; /* Ignore partial cylinders */
-#if 0
- if (dkinfo[2] > 1024)
- dkinfo[2] = 1024;
-#endif
- return 0;
-}
-
-static void ultrastor_interrupt(void *dev_id)
-{
- unsigned int status;
-#if ULTRASTOR_MAX_CMDS > 1
- unsigned int mscp_index;
-#endif
- struct mscp *mscp;
- void (*done) (struct scsi_cmnd *);
- struct scsi_cmnd *SCtmp;
-
-#if ULTRASTOR_MAX_CMDS == 1
- mscp = &config.mscp[0];
-#else
- mscp = (struct mscp *)isa_bus_to_virt(inl(config.icm_address));
- mscp_index = mscp - config.mscp;
- if (mscp_index >= ULTRASTOR_MAX_CMDS) {
- printk("Ux4F interrupt: bad MSCP address %x\n", (unsigned int) mscp);
- /* A command has been lost. Reset and report an error
- for all commands. */
- ultrastor_host_reset(dev_id);
- return;
- }
-#endif
-
- /* Clean ICM slot (set ICMINT bit to 0) */
- if (config.slot) {
- unsigned char icm_status = inb(config.icm_address - 1);
-#if ULTRASTOR_DEBUG & (UD_INTERRUPT|UD_ERROR|UD_ABORT)
- if (icm_status != 1 && icm_status != 2)
- printk("US24F: ICM status %x for MSCP %d (%x)\n", icm_status,
- mscp_index, (unsigned int) mscp);
-#endif
- /* The manual says clear interrupt then write 0 to ICM status.
- This seems backwards, but I'll do it anyway. --jfc */
- outb(2, SYS_DOORBELL_INTR(config.doorbell_address));
- outb(0, config.icm_address - 1);
- if (icm_status == 4) {
- printk("UltraStor abort command failed\n");
- return;
- }
- if (icm_status == 3) {
- void (*done)(struct scsi_cmnd *) = mscp->done;
- if (done) {
- mscp->done = NULL;
- mscp->SCint->result = DID_ABORT << 16;
- done(mscp->SCint);
- }
- return;
- }
- } else {
- outb(1, SYS_DOORBELL_INTR(config.doorbell_address));
- }
-
- SCtmp = mscp->SCint;
- mscp->SCint = NULL;
-
- if (!SCtmp)
- {
-#if ULTRASTOR_DEBUG & (UD_ABORT|UD_INTERRUPT)
- printk("MSCP %d (%x): no command\n", mscp_index, (unsigned int) mscp);
-#endif
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = FALSE;
-#else
- set_bit(mscp_index, &config.mscp_free);
-#endif
- config.aborted[mscp_index] = 0;
- return;
- }
-
- /* Save done locally and zero before calling. This is needed as
- once we call done, we may get another command queued before this
- interrupt service routine can return. */
- done = mscp->done;
- mscp->done = NULL;
-
- /* Let the higher levels know that we're done */
- switch (mscp->adapter_status)
- {
- case 0:
- status = DID_OK << 16;
- break;
- case 0x01: /* invalid command */
- case 0x02: /* invalid parameters */
- case 0x03: /* invalid data list */
- default:
- status = DID_ERROR << 16;
- break;
- case 0x84: /* SCSI bus abort */
- status = DID_ABORT << 16;
- break;
- case 0x91:
- status = DID_TIME_OUT << 16;
- break;
- }
-
- SCtmp->result = status | mscp->target_status;
-
- SCtmp->host_scribble = NULL;
-
- /* Free up mscp block for next command */
-#if ULTRASTOR_MAX_CMDS == 1
- config.mscp_busy = FALSE;
-#else
- set_bit(mscp_index, &config.mscp_free);
-#endif
-
-#if ULTRASTOR_DEBUG & (UD_ABORT|UD_INTERRUPT)
- if (config.aborted[mscp_index])
- printk("Ux4 interrupt: MSCP %d (%x) aborted = %d\n",
- mscp_index, (unsigned int) mscp, config.aborted[mscp_index]);
-#endif
- config.aborted[mscp_index] = 0;
-
- if (done)
- done(SCtmp);
- else
- printk("US14F: interrupt: unexpected interrupt\n");
-
- if (config.slot ? inb(config.icm_address - 1) :
- (inb(SYS_DOORBELL_INTR(config.doorbell_address)) & 1))
-#if (ULTRASTOR_DEBUG & UD_MULTI_CMD)
- printk("Ux4F: multiple commands completed\n");
-#else
- ;
-#endif
-
-#if (ULTRASTOR_DEBUG & UD_INTERRUPT)
- printk("USx4F: interrupt: returning\n");
-#endif
-}
-
-static irqreturn_t do_ultrastor_interrupt(int irq, void *dev_id)
-{
- unsigned long flags;
- struct Scsi_Host *dev = dev_id;
-
- spin_lock_irqsave(dev->host_lock, flags);
- ultrastor_interrupt(dev_id);
- spin_unlock_irqrestore(dev->host_lock, flags);
- return IRQ_HANDLED;
-}
-
-MODULE_LICENSE("GPL");
-
-static struct scsi_host_template driver_template = {
- .name = "UltraStor 14F/24F/34F",
- .detect = ultrastor_detect,
- .release = ultrastor_release,
- .info = ultrastor_info,
- .queuecommand = ultrastor_queuecommand,
- .eh_abort_handler = ultrastor_abort,
- .eh_host_reset_handler = ultrastor_host_reset,
- .bios_param = ultrastor_biosparam,
- .can_queue = ULTRASTOR_MAX_CMDS,
- .sg_tablesize = ULTRASTOR_14F_MAX_SG,
- .cmd_per_lun = ULTRASTOR_MAX_CMDS_PER_LUN,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-#include "scsi_module.c"
diff --git a/drivers/scsi/ultrastor.h b/drivers/scsi/ultrastor.h
deleted file mode 100644
index 165c18b..0000000
--- a/drivers/scsi/ultrastor.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * ultrastor.c (C) 1991 David B. Gentzel
- * Low-level scsi driver for UltraStor 14F
- * by David B. Gentzel, Whitfield Software Services, Carnegie, PA
- * (gentzel@nova.enet.dec.com)
- * scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
- * 24F support by John F. Carr (jfc@athena.mit.edu)
- * John's work modified by Caleb Epstein (cae@jpmorgan.com) and
- * Eric Youngdale (eric@tantalus.nrl.navy.mil).
- * Thanks to UltraStor for providing the necessary documentation
- */
-
-#ifndef _ULTRASTOR_H
-#define _ULTRASTOR_H
-
-static int ultrastor_detect(struct scsi_host_template *);
-static const char *ultrastor_info(struct Scsi_Host *shpnt);
-static int ultrastor_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int ultrastor_abort(struct scsi_cmnd *);
-static int ultrastor_host_reset(struct scsi_cmnd *);
-static int ultrastor_biosparam(struct scsi_device *, struct block_device *,
- sector_t, int *);
-
-
-#define ULTRASTOR_14F_MAX_SG 16
-#define ULTRASTOR_24F_MAX_SG 33
-
-#define ULTRASTOR_MAX_CMDS_PER_LUN 5
-#define ULTRASTOR_MAX_CMDS 16
-
-#define ULTRASTOR_24F_PORT 0xC80
-
-
-#ifdef ULTRASTOR_PRIVATE
-
-#define UD_ABORT 0x0001
-#define UD_COMMAND 0x0002
-#define UD_DETECT 0x0004
-#define UD_INTERRUPT 0x0008
-#define UD_RESET 0x0010
-#define UD_MULTI_CMD 0x0020
-#define UD_CSIR 0x0040
-#define UD_ERROR 0x0080
-
-/* #define PORT_OVERRIDE 0x330 */
-
-/* Values for the PRODUCT_ID ports for the 14F */
-#define US14F_PRODUCT_ID_0 0x56
-#define US14F_PRODUCT_ID_1 0x40 /* NOTE: Only upper nibble is used */
-
-#define US24F_PRODUCT_ID_0 0x56
-#define US24F_PRODUCT_ID_1 0x63
-#define US24F_PRODUCT_ID_2 0x02
-
-/* Subversion values */
-#define U14F 0
-#define U34F 1
-
-/* MSCP field values */
-
-/* Opcode */
-#define OP_HOST_ADAPTER 0x1
-#define OP_SCSI 0x2
-#define OP_RESET 0x4
-
-/* Date Transfer Direction */
-#define DTD_SCSI 0x0
-#define DTD_IN 0x1
-#define DTD_OUT 0x2
-#define DTD_NONE 0x3
-
-/* Host Adapter command subcodes */
-#define HA_CMD_INQUIRY 0x1
-#define HA_CMD_SELF_DIAG 0x2
-#define HA_CMD_READ_BUFF 0x3
-#define HA_CMD_WRITE_BUFF 0x4
-
-#endif
-
-#endif
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 4/7] u14-34f: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (2 preceding siblings ...)
2016-09-19 15:50 ` [PATCH 3/7] ultrastor: " Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 5/7] pas16: " Christoph Hellwig
` (4 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/scsi-parameters.txt | 3 -
MAINTAINERS | 6 -
drivers/scsi/Kconfig | 49 -
drivers/scsi/Makefile | 1 -
drivers/scsi/u14-34f.c | 1971 --------------------------------
5 files changed, 2030 deletions(-)
delete mode 100644 drivers/scsi/u14-34f.c
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 2135ff4..083bd93 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -123,8 +123,5 @@ parameters may be changed at runtime by the command
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
- u14-34f= [HW,SCSI] UltraStor 14F/34F SCSI host adapter
- See header of drivers/scsi/u14-34f.c.
-
wd33c93= [HW,SCSI]
See header of drivers/scsi/wd33c93.c.
diff --git a/MAINTAINERS b/MAINTAINERS
index fdcce6b..6ca763f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11967,12 +11967,6 @@ S: Maintained
F: drivers/tc/
F: include/linux/tc.h
-U14-34F SCSI DRIVER
-M: Dario Ballabio <ballabio_dario@emc.com>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-F: drivers/scsi/u14-34f.c
-
UBI FILE SYSTEM (UBIFS)
M: Richard Weinberger <richard@nod.at>
M: Artem Bityutskiy <dedekind1@gmail.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 57cf77f..6978531 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1376,55 +1376,6 @@ config SCSI_T128
To compile this driver as a module, choose M here: the
module will be called t128.
-config SCSI_U14_34F
- tristate "UltraStor 14F/34F support"
- depends on ISA && SCSI && ISA_DMA_API
- ---help---
- This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
- The source at <file:drivers/scsi/u14-34f.c> contains some
- information about this hardware. If the driver doesn't work out of
- the box, you may have to change some settings in
- <file: drivers/scsi/u14-34f.c>. Read the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. Note that there is also
- another driver for the same hardware: "UltraStor SCSI support",
- below. You should say Y to both only if you want 24F support as
- well.
-
- To compile this driver as a module, choose M here: the
- module will be called u14-34f.
-
-config SCSI_U14_34F_TAGGED_QUEUE
- bool "enable tagged command queueing"
- depends on SCSI_U14_34F
- help
- This is a feature of SCSI-2 which improves performance: the host
- adapter can send several SCSI commands to a device's queue even if
- previous commands haven't finished yet.
- This is equivalent to the "u14-34f=tc:y" boot option.
-
-config SCSI_U14_34F_LINKED_COMMANDS
- bool "enable elevator sorting"
- depends on SCSI_U14_34F
- help
- This option enables elevator sorting for all probed SCSI disks and
- CD-ROMs. It definitely reduces the average seek distance when doing
- random seeks, but this does not necessarily result in a noticeable
- performance improvement: your mileage may vary...
- This is equivalent to the "u14-34f=lc:y" boot option.
-
-config SCSI_U14_34F_MAX_TAGS
- int "maximum number of queued commands"
- depends on SCSI_U14_34F
- default "8"
- help
- This specifies how many SCSI commands can be maximally queued for
- each probed SCSI device. You should reduce the default value of 8
- only if you have disks with buggy or limited tagged command support.
- Minimum is 2 and maximum is 14. This value is also the window size
- used by the elevator sorting option above. The effective value used
- by the driver for each probed SCSI device is reported at boot time.
- This is equivalent to the "u14-34f=mq:8" boot option.
-
config SCSI_NSP32
tristate "Workbit NinjaSCSI-32Bi/UDE support"
depends on PCI && SCSI && !64BIT
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 2e7d9ef..921cf07 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -61,7 +61,6 @@ obj-$(CONFIG_SCSI_SIM710) += 53c700.o sim710.o
obj-$(CONFIG_SCSI_ADVANSYS) += advansys.o
obj-$(CONFIG_SCSI_BUSLOGIC) += BusLogic.o
obj-$(CONFIG_SCSI_DPT_I2O) += dpt_i2o.o
-obj-$(CONFIG_SCSI_U14_34F) += u14-34f.o
obj-$(CONFIG_SCSI_ARCMSR) += arcmsr/
obj-$(CONFIG_SCSI_AHA152X) += aha152x.o
obj-$(CONFIG_SCSI_AHA1542) += aha1542.o
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c
deleted file mode 100644
index 14eb50b..0000000
--- a/drivers/scsi/u14-34f.c
+++ /dev/null
@@ -1,1971 +0,0 @@
-/*
- * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters.
- *
- * 03 Jun 2003 Rev. 8.10 for linux-2.5.70
- * + Update for new IRQ API.
- * + Use "goto" when appropriate.
- * + Drop u14-34f.h.
- * + Update for new module_param API.
- * + Module parameters can now be specified only in the
- * same format as the kernel boot options.
- *
- * boot option old module param
- * ----------- ------------------
- * addr,... io_port=addr,...
- * lc:[y|n] linked_comm=[1|0]
- * mq:xx max_queue_depth=xx
- * tm:[0|1|2] tag_mode=[0|1|2]
- * et:[y|n] ext_tran=[1|0]
- * of:[y|n] have_old_firmware=[1|0]
- *
- * A valid example using the new parameter format is:
- * modprobe u14-34f "u14-34f=0x340,0x330,lc:y,tm:0,mq:4"
- *
- * which is equivalent to the old format:
- * modprobe u14-34f io_port=0x340,0x330 linked_comm=1 tag_mode=0 \
- * max_queue_depth=4
- *
- * With actual module code, u14-34f and u14_34f are equivalent
- * as module parameter names.
- *
- * 12 Feb 2003 Rev. 8.04 for linux 2.5.60
- * + Release irq before calling scsi_register.
- *
- * 12 Nov 2002 Rev. 8.02 for linux 2.5.47
- * + Release driver_lock before calling scsi_register.
- *
- * 11 Nov 2002 Rev. 8.01 for linux 2.5.47
- * + Fixed bios_param and scsicam_bios_param calling parameters.
- *
- * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4
- * + Use new tcq and adjust_queue_depth api.
- * + New command line option (tm:[0-2]) to choose the type of tags:
- * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags.
- * Default is tm:0 (tagged commands disabled).
- * For compatibility the "tc:" option is an alias of the "tm:"
- * option; tc:n is equivalent to tm:0 and tc:y is equivalent to
- * tm:1.
- *
- * 10 Oct 2002 Rev. 7.70 for linux 2.5.42
- * + Foreport from revision 6.70.
- *
- * 25 Jun 2002 Rev. 6.70 for linux 2.4.19
- * + Fixed endian-ness problem due to bitfields.
- *
- * 21 Feb 2002 Rev. 6.52 for linux 2.4.18
- * + Backport from rev. 7.22 (use io_request_lock).
- *
- * 20 Feb 2002 Rev. 7.22 for linux 2.5.5
- * + Remove any reference to virt_to_bus().
- * + Fix pio hang while detecting multiple HBAs.
- *
- * 01 Jan 2002 Rev. 7.20 for linux 2.5.1
- * + Use the dynamic DMA mapping API.
- *
- * 19 Dec 2001 Rev. 7.02 for linux 2.5.1
- * + Use SCpnt->sc_data_direction if set.
- * + Use sglist.page instead of sglist.address.
- *
- * 11 Dec 2001 Rev. 7.00 for linux 2.5.1
- * + Use host->host_lock instead of io_request_lock.
- *
- * 1 May 2001 Rev. 6.05 for linux 2.4.4
- * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d)
- *
- * 25 Jan 2001 Rev. 6.03 for linux 2.4.0
- * + "check_region" call replaced by "request_region".
- *
- * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11
- * + Removed old scsi error handling support.
- * + The obsolete boot option flag eh:n is silently ignored.
- * + Removed error messages while a disk drive is powered up at
- * boot time.
- * + Improved boot messages: all tagged capable device are
- * indicated as "tagged".
- *
- * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18
- * + Updated to the new __setup interface for boot command line options.
- * + When loaded as a module, accepts the new parameter boot_options
- * which value is a string with the same format of the kernel boot
- * command line options. A valid example is:
- * modprobe u14-34f 'boot_options="0x230,0x340,lc:y,mq:4"'
- *
- * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11
- * + Removed pre-2.2 source code compatibility.
- *
- * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111
- * Added command line option (et:[y|n]) to use the existing
- * translation (returned by scsicam_bios_param) as disk geometry.
- * The default is et:n, which uses the disk geometry jumpered
- * on the board.
- * The default value et:n is compatible with all previous revisions
- * of this driver.
- *
- * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104
- * Increased busy timeout from 10 msec. to 200 msec. while
- * processing interrupts.
- *
- * 18 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102
- * Improved abort handling during the eh recovery process.
- *
- * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101
- * The driver is now fully SMP safe, including the
- * abort and reset routines.
- * Added command line options (eh:[y|n]) to choose between
- * new_eh_code and the old scsi code.
- * If linux version >= 2.1.101 the default is eh:y, while the eh
- * option is ignored for previous releases and the old scsi code
- * is used.
- *
- * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97
- * Reworked interrupt handler.
- *
- * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95
- * Major reliability improvement: when a batch with overlapping
- * requests is detected, requests are queued one at a time
- * eliminating any possible board or drive reordering.
- *
- * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95
- * Improved SMP support (if linux version >= 2.1.95).
- *
- * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94
- * Performance improvement: when sequential i/o is detected,
- * always use direct sort instead of reverse sort.
- *
- * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92
- * io_port is now unsigned long.
- *
- * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88
- * Use new scsi error handling code (if linux version >= 2.1.88).
- * Use new interrupt code.
- *
- * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55
- * Use of udelay inside the wait loops to avoid timeout
- * problems with fast cpus.
- * Removed check about useless calls to the interrupt service
- * routine (reported on SMP systems only).
- * At initialization time "sorted/unsorted" is displayed instead
- * of "linked/unlinked" to reinforce the fact that "linking" is
- * nothing but "elevator sorting" in the actual implementation.
- *
- * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38
- * Use of serial_number_at_timeout in abort and reset processing.
- * Use of the __initfunc and __initdata macro in setup code.
- * Minor cleanups in the list_statistics code.
- *
- * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26
- * When loading as a module, parameter passing is now supported
- * both in 2.0 and in 2.1 style.
- * Fixed data transfer direction for some SCSI opcodes.
- * Immediate acknowledge to request sense commands.
- * Linked commands to each disk device are now reordered by elevator
- * sorting. Rare cases in which reordering of write requests could
- * cause wrong results are managed.
- *
- * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28
- * Added command line options to enable/disable linked commands
- * (lc:[y|n]), old firmware support (of:[y|n]) and to set the max
- * queue depth (mq:xx). Default is "u14-34f=lc:n,of:n,mq:8".
- * Improved command linking.
- *
- * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27
- * Added linked command support.
- *
- * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27
- * Added queue depth adjustment.
- *
- * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
- * The list of i/o ports to be probed can be overwritten by the
- * "u14-34f=port0,port1,...." boot command line option.
- * Scatter/gather lists are now allocated by a number of kmalloc
- * calls, in order to avoid the previous size limit of 64Kb.
- *
- * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
- * Added multichannel support.
- *
- * 27 Sep 1996 rev. 2.12 for linux 2.1.0
- * Portability cleanups (virtual/bus addressing, little/big endian
- * support).
- *
- * 09 Jul 1996 rev. 2.11 for linux 2.0.4
- * "Data over/under-run" no longer implies a redo on all targets.
- * Number of internal retries is now limited.
- *
- * 16 Apr 1996 rev. 2.10 for linux 1.3.90
- * New argument "reset_flags" to the reset routine.
- *
- * 21 Jul 1995 rev. 2.02 for linux 1.3.11
- * Fixed Data Transfer Direction for some SCSI commands.
- *
- * 13 Jun 1995 rev. 2.01 for linux 1.2.10
- * HAVE_OLD_UX4F_FIRMWARE should be defined for U34F boards when
- * the firmware prom is not the latest one (28008-006).
- *
- * 11 Mar 1995 rev. 2.00 for linux 1.2.0
- * Fixed a bug which prevented media change detection for removable
- * disk drives.
- *
- * 23 Feb 1995 rev. 1.18 for linux 1.1.94
- * Added a check for scsi_register returning NULL.
- *
- * 11 Feb 1995 rev. 1.17 for linux 1.1.91
- * U14F qualified to run with 32 sglists.
- * Now DEBUG_RESET is disabled by default.
- *
- * 9 Feb 1995 rev. 1.16 for linux 1.1.90
- * Use host->wish_block instead of host->block.
- *
- * 8 Feb 1995 rev. 1.15 for linux 1.1.89
- * Cleared target_time_out counter while performing a reset.
- *
- * 28 Jan 1995 rev. 1.14 for linux 1.1.86
- * Added module support.
- * Log and do a retry when a disk drive returns a target status
- * different from zero on a recovered error.
- * Auto detects if U14F boards have an old firmware revision.
- * Max number of scatter/gather lists set to 16 for all boards
- * (most installation run fine using 33 sglists, while other
- * has problems when using more than 16).
- *
- * 16 Jan 1995 rev. 1.13 for linux 1.1.81
- * Display a message if check_region detects a port address
- * already in use.
- *
- * 15 Dec 1994 rev. 1.12 for linux 1.1.74
- * The host->block flag is set for all the detected ISA boards.
- *
- * 30 Nov 1994 rev. 1.11 for linux 1.1.68
- * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only.
- * Added optional support for using a single board at a time.
- *
- * 14 Nov 1994 rev. 1.10 for linux 1.1.63
- *
- * 28 Oct 1994 rev. 1.09 for linux 1.1.58 Final BETA release.
- * 16 Jul 1994 rev. 1.00 for linux 1.1.29 Initial ALPHA release.
- *
- * This driver is a total replacement of the original UltraStor
- * scsi driver, but it supports ONLY the 14F and 34F boards.
- * It can be configured in the same kernel in which the original
- * ultrastor driver is configured to allow the original U24F
- * support.
- *
- * Multiple U14F and/or U34F host adapters are supported.
- *
- * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com)
- *
- * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that redistributions of source
- * code retain the above copyright notice and this comment without
- * modification.
- *
- * WARNING: if your 14/34F board has an old firmware revision (see below)
- * you must change "#undef" into "#define" in the following
- * statement.
- */
-#undef HAVE_OLD_UX4F_FIRMWARE
-/*
- * The UltraStor 14F, 24F, and 34F are a family of intelligent, high
- * performance SCSI-2 host adapters.
- * Here is the scoop on the various models:
- *
- * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation.
- * 24F - EISA Bus Master HA with floppy support and WD1003 emulation.
- * 34F - VESA Local-Bus Bus Master HA (no WD1003 emulation).
- *
- * This code has been tested with up to two U14F boards, using both
- * firmware 28004-005/38004-004 (BIOS rev. 2.00) and the latest firmware
- * 28004-006/38004-005 (BIOS rev. 2.01).
- *
- * The latest firmware is required in order to get reliable operations when
- * clustering is enabled. ENABLE_CLUSTERING provides a performance increase
- * up to 50% on sequential access.
- *
- * Since the struct scsi_host_template structure is shared among all 14F and 34F,
- * the last setting of use_clustering is in effect for all of these boards.
- *
- * Here a sample configuration using two U14F boards:
- *
- U14F0: ISA 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 32, MB 16, of:n, lc:y, mq:8.
- U14F1: ISA 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 32, MB 16, of:n, lc:y, mq:8.
- *
- * The boot controller must have its BIOS enabled, while other boards can
- * have their BIOS disabled, or enabled to an higher address.
- * Boards are named Ux4F0, Ux4F1..., according to the port address order in
- * the io_port[] array.
- *
- * The following facts are based on real testing results (not on
- * documentation) on the above U14F board.
- *
- * - The U14F board should be jumpered for bus on time less or equal to 7
- * microseconds, while the default is 11 microseconds. This is order to
- * get acceptable performance while using floppy drive and hard disk
- * together. The jumpering for 7 microseconds is: JP13 pin 15-16,
- * JP14 pin 7-8 and pin 9-10.
- * The reduction has a little impact on scsi performance.
- *
- * - If scsi bus length exceeds 3m., the scsi bus speed needs to be reduced
- * from 10Mhz to 5Mhz (do this by inserting a jumper on JP13 pin 7-8).
- *
- * - If U14F on board firmware is older than 28004-006/38004-005,
- * the U14F board is unable to provide reliable operations if the scsi
- * request length exceeds 16Kbyte. When this length is exceeded the
- * behavior is:
- * - adapter_status equal 0x96 or 0xa3 or 0x93 or 0x94;
- * - adapter_status equal 0 and target_status equal 2 on for all targets
- * in the next operation following the reset.
- * This sequence takes a long time (>3 seconds), so in the meantime
- * the SD_TIMEOUT in sd.c could expire giving rise to scsi aborts
- * (SD_TIMEOUT has been increased from 3 to 6 seconds in 1.1.31).
- * Because of this I had to DISABLE_CLUSTERING and to work around the
- * bus reset in the interrupt service routine, returning DID_BUS_BUSY
- * so that the operations are retried without complains from the scsi.c
- * code.
- * Any reset of the scsi bus is going to kill tape operations, since
- * no retry is allowed for tapes. Bus resets are more likely when the
- * scsi bus is under heavy load.
- * Requests using scatter/gather have a maximum length of 16 x 1024 bytes
- * when DISABLE_CLUSTERING is in effect, but unscattered requests could be
- * larger than 16Kbyte.
- *
- * The new firmware has fixed all the above problems.
- *
- * For U34F boards the latest bios prom is 38008-002 (BIOS rev. 2.01),
- * the latest firmware prom is 28008-006. Older firmware 28008-005 has
- * problems when using more than 16 scatter/gather lists.
- *
- * The list of i/o ports to be probed can be totally replaced by the
- * boot command line option: "u14-34f=port0,port1,port2,...", where the
- * port0, port1... arguments are ISA/VESA addresses to be probed.
- * For example using "u14-34f=0x230,0x340", the driver probes only the two
- * addresses 0x230 and 0x340 in this order; "u14-34f=0" totally disables
- * this driver.
- *
- * After the optional list of detection probes, other possible command line
- * options are:
- *
- * et:y use disk geometry returned by scsicam_bios_param;
- * et:n use disk geometry jumpered on the board;
- * lc:y enables linked commands;
- * lc:n disables linked commands;
- * tm:0 disables tagged commands (same as tc:n);
- * tm:1 use simple queue tags (same as tc:y);
- * tm:2 use ordered queue tags (same as tc:2);
- * of:y enables old firmware support;
- * of:n disables old firmware support;
- * mq:xx set the max queue depth to the value xx (2 <= xx <= 8).
- *
- * The default value is: "u14-34f=lc:n,of:n,mq:8,tm:0,et:n".
- * An example using the list of detection probes could be:
- * "u14-34f=0x230,0x340,lc:y,tm:2,of:n,mq:4,et:n".
- *
- * When loading as a module, parameters can be specified as well.
- * The above example would be (use 1 in place of y and 0 in place of n):
- *
- * modprobe u14-34f io_port=0x230,0x340 linked_comm=1 have_old_firmware=0 \
- * max_queue_depth=4 ext_tran=0 tag_mode=2
- *
- * ----------------------------------------------------------------------------
- * In this implementation, linked commands are designed to work with any DISK
- * or CD-ROM, since this linking has only the intent of clustering (time-wise)
- * and reordering by elevator sorting commands directed to each device,
- * without any relation with the actual SCSI protocol between the controller
- * and the device.
- * If Q is the queue depth reported at boot time for each device (also named
- * cmds/lun) and Q > 2, whenever there is already an active command to the
- * device all other commands to the same device (up to Q-1) are kept waiting
- * in the elevator sorting queue. When the active command completes, the
- * commands in this queue are sorted by sector address. The sort is chosen
- * between increasing or decreasing by minimizing the seek distance between
- * the sector of the commands just completed and the sector of the first
- * command in the list to be sorted.
- * Trivial math assures that the unsorted average seek distance when doing
- * random seeks over S sectors is S/3.
- * When (Q-1) requests are uniformly distributed over S sectors, the average
- * distance between two adjacent requests is S/((Q-1) + 1), so the sorted
- * average seek distance for (Q-1) random requests over S sectors is S/Q.
- * The elevator sorting hence divides the seek distance by a factor Q/3.
- * The above pure geometric remarks are valid in all cases and the
- * driver effectively reduces the seek distance by the predicted factor
- * when there are Q concurrent read i/o operations on the device, but this
- * does not necessarily results in a noticeable performance improvement:
- * your mileage may vary....
- *
- * Note: command reordering inside a batch of queued commands could cause
- * wrong results only if there is at least one write request and the
- * intersection (sector-wise) of all requests is not empty.
- * When the driver detects a batch including overlapping requests
- * (a really rare event) strict serial (pid) order is enforced.
- * ----------------------------------------------------------------------------
- *
- * The boards are named Ux4F0, Ux4F1,... according to the detection order.
- *
- * In order to support multiple ISA boards in a reliable way,
- * the driver sets host->wish_block = TRUE for all ISA boards.
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/byteorder.h>
-#include <linux/proc_fs.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/stat.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ctype.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <asm/dma.h>
-#include <asm/irq.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/scsicam.h>
-
-static int u14_34f_detect(struct scsi_host_template *);
-static int u14_34f_release(struct Scsi_Host *);
-static int u14_34f_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
-static int u14_34f_eh_abort(struct scsi_cmnd *);
-static int u14_34f_eh_host_reset(struct scsi_cmnd *);
-static int u14_34f_bios_param(struct scsi_device *, struct block_device *,
- sector_t, int *);
-static int u14_34f_slave_configure(struct scsi_device *);
-
-static struct scsi_host_template driver_template = {
- .name = "UltraStor 14F/34F rev. 8.10.00 ",
- .detect = u14_34f_detect,
- .release = u14_34f_release,
- .queuecommand = u14_34f_queuecommand,
- .eh_abort_handler = u14_34f_eh_abort,
- .eh_host_reset_handler = u14_34f_eh_host_reset,
- .bios_param = u14_34f_bios_param,
- .slave_configure = u14_34f_slave_configure,
- .this_id = 7,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
- };
-
-#if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
-
-/* Values for the PRODUCT_ID ports for the 14/34F */
-#define PRODUCT_ID1 0x56
-#define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */
-
-/* Subversion values */
-#define ISA 0
-#define ESA 1
-
-#define OP_HOST_ADAPTER 0x1
-#define OP_SCSI 0x2
-#define OP_RESET 0x4
-#define DTD_SCSI 0x0
-#define DTD_IN 0x1
-#define DTD_OUT 0x2
-#define DTD_NONE 0x3
-#define HA_CMD_INQUIRY 0x1
-#define HA_CMD_SELF_DIAG 0x2
-#define HA_CMD_READ_BUFF 0x3
-#define HA_CMD_WRITE_BUFF 0x4
-
-#undef DEBUG_LINKED_COMMANDS
-#undef DEBUG_DETECT
-#undef DEBUG_INTERRUPT
-#undef DEBUG_RESET
-#undef DEBUG_GENERATE_ERRORS
-#undef DEBUG_GENERATE_ABORTS
-#undef DEBUG_GEOMETRY
-
-#define MAX_ISA 3
-#define MAX_VESA 1
-#define MAX_EISA 0
-#define MAX_PCI 0
-#define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
-#define MAX_CHANNEL 1
-#define MAX_LUN 8
-#define MAX_TARGET 8
-#define MAX_MAILBOXES 16
-#define MAX_SGLIST 32
-#define MAX_SAFE_SGLIST 16
-#define MAX_INTERNAL_RETRIES 64
-#define MAX_CMD_PER_LUN 2
-#define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN)
-
-#define SKIP ULONG_MAX
-#define FALSE 0
-#define TRUE 1
-#define FREE 0
-#define IN_USE 1
-#define LOCKED 2
-#define IN_RESET 3
-#define IGNORE 4
-#define READY 5
-#define ABORTING 6
-#define NO_DMA 0xff
-#define MAXLOOP 10000
-#define TAG_DISABLED 0
-#define TAG_SIMPLE 1
-#define TAG_ORDERED 2
-
-#define REG_LCL_MASK 0
-#define REG_LCL_INTR 1
-#define REG_SYS_MASK 2
-#define REG_SYS_INTR 3
-#define REG_PRODUCT_ID1 4
-#define REG_PRODUCT_ID2 5
-#define REG_CONFIG1 6
-#define REG_CONFIG2 7
-#define REG_OGM 8
-#define REG_ICM 12
-#define REGION_SIZE 13UL
-#define BSY_ASSERTED 0x01
-#define IRQ_ASSERTED 0x01
-#define CMD_RESET 0xc0
-#define CMD_OGM_INTR 0x01
-#define CMD_CLR_INTR 0x01
-#define CMD_ENA_INTR 0x81
-#define ASOK 0x00
-#define ASST 0x91
-
-#define YESNO(a) ((a) ? 'y' : 'n')
-#define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM)
-
-#define PACKED __attribute__((packed))
-
-struct sg_list {
- unsigned int address; /* Segment Address */
- unsigned int num_bytes; /* Segment Length */
- };
-
-/* MailBox SCSI Command Packet */
-struct mscp {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char sg:1, ca:1, dcn:1, xdir:2, opcode:3;
- unsigned char lun: 3, channel:2, target:3;
-#else
- unsigned char opcode: 3, /* type of command */
- xdir: 2, /* data transfer direction */
- dcn: 1, /* disable disconnect */
- ca: 1, /* use cache (if available) */
- sg: 1; /* scatter/gather operation */
- unsigned char target: 3, /* SCSI target id */
- channel: 2, /* SCSI channel number */
- lun: 3; /* SCSI logical unit number */
-#endif
-
- unsigned int data_address PACKED; /* transfer data pointer */
- unsigned int data_len PACKED; /* length in bytes */
- unsigned int link_address PACKED; /* for linking command chains */
- unsigned char clink_id; /* identifies command in chain */
- unsigned char use_sg; /* (if sg is set) 8 bytes per list */
- unsigned char sense_len;
- unsigned char cdb_len; /* 6, 10, or 12 */
- unsigned char cdb[12]; /* SCSI Command Descriptor Block */
- unsigned char adapter_status; /* non-zero indicates HA error */
- unsigned char target_status; /* non-zero indicates target error */
- unsigned int sense_addr PACKED;
-
- /* Additional fields begin here. */
- struct scsi_cmnd *SCpnt;
- unsigned int cpp_index; /* cp index */
-
- /* All the cp structure is zero filled by queuecommand except the
- following CP_TAIL_SIZE bytes, initialized by detect */
- dma_addr_t cp_dma_addr; /* dma handle for this cp structure */
- struct sg_list *sglist; /* pointer to the allocated SG list */
- };
-
-#define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t))
-
-struct hostdata {
- struct mscp cp[MAX_MAILBOXES]; /* Mailboxes for this board */
- unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */
- unsigned int last_cp_used; /* Index of last mailbox used */
- unsigned int iocount; /* Total i/o done for this board */
- int board_number; /* Number of this board */
- char board_name[16]; /* Name of this board */
- int in_reset; /* True if board is doing a reset */
- int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */
- int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If TRUE redo i/o on target */
- unsigned int retries; /* Number of internal retries */
- unsigned long last_retried_pid; /* Pid of last retried command */
- unsigned char subversion; /* Bus type, either ISA or ESA */
- struct pci_dev *pdev; /* Always NULL */
- unsigned char heads;
- unsigned char sectors;
- char board_id[256]; /* data from INQUIRY on this board */
- };
-
-static struct Scsi_Host *sh[MAX_BOARDS + 1];
-static const char *driver_name = "Ux4F";
-static char sha[MAX_BOARDS];
-static DEFINE_SPINLOCK(driver_lock);
-
-/* Initialize num_boards so that ihdlr can work while detect is in progress */
-static unsigned int num_boards = MAX_BOARDS;
-
-static unsigned long io_port[] = {
-
- /* Space for MAX_INT_PARAM ports usable while loading as a module */
- SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
- SKIP, SKIP,
-
- /* Possible ISA/VESA ports */
- 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140,
-
- /* End of list */
- 0x0
- };
-
-#define HD(board) ((struct hostdata *) &sh[board]->hostdata)
-#define BN(board) (HD(board)->board_name)
-
-/* Device is Little Endian */
-#define H2DEV(x) cpu_to_le32(x)
-#define DEV2H(x) le32_to_cpu(x)
-
-static irqreturn_t do_interrupt_handler(int, void *);
-static void flush_dev(struct scsi_device *, unsigned long, unsigned int, unsigned int);
-static int do_trace = FALSE;
-static int setup_done = FALSE;
-static int link_statistics;
-static int ext_tran = FALSE;
-
-#if defined(HAVE_OLD_UX4F_FIRMWARE)
-static int have_old_firmware = TRUE;
-#else
-static int have_old_firmware = FALSE;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_TAGGED_QUEUE)
-static int tag_mode = TAG_SIMPLE;
-#else
-static int tag_mode = TAG_DISABLED;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_LINKED_COMMANDS)
-static int linked_comm = TRUE;
-#else
-static int linked_comm = FALSE;
-#endif
-
-#if defined(CONFIG_SCSI_U14_34F_MAX_TAGS)
-static int max_queue_depth = CONFIG_SCSI_U14_34F_MAX_TAGS;
-#else
-static int max_queue_depth = MAX_CMD_PER_LUN;
-#endif
-
-#define MAX_INT_PARAM 10
-#define MAX_BOOT_OPTIONS_SIZE 256
-static char boot_options[MAX_BOOT_OPTIONS_SIZE];
-
-#if defined(MODULE)
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-
-module_param_string(u14_34f, boot_options, MAX_BOOT_OPTIONS_SIZE, 0);
-MODULE_PARM_DESC(u14_34f, " equivalent to the \"u14-34f=...\" kernel boot " \
-"option." \
-" Example: modprobe u14-34f \"u14_34f=0x340,0x330,lc:y,tm:0,mq:4\"");
-MODULE_AUTHOR("Dario Ballabio");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("UltraStor 14F/34F SCSI Driver");
-
-#endif
-
-static int u14_34f_slave_configure(struct scsi_device *dev) {
- int j, tqd, utqd;
- char *tag_suffix, *link_suffix;
- struct Scsi_Host *host = dev->host;
-
- j = ((struct hostdata *) host->hostdata)->board_number;
-
- utqd = MAX_CMD_PER_LUN;
- tqd = max_queue_depth;
-
- if (TLDEV(dev->type) && dev->tagged_supported)
-
- if (tag_mode == TAG_SIMPLE) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", simple tags";
- }
- else if (tag_mode == TAG_ORDERED) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", ordered tags";
- }
- else {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", no tags";
- }
-
- else if (TLDEV(dev->type) && linked_comm) {
- scsi_change_queue_depth(dev, tqd);
- tag_suffix = ", untagged";
- }
-
- else {
- scsi_change_queue_depth(dev, utqd);
- tag_suffix = "";
- }
-
- if (TLDEV(dev->type) && linked_comm && dev->queue_depth > 2)
- link_suffix = ", sorted";
- else if (TLDEV(dev->type))
- link_suffix = ", unsorted";
- else
- link_suffix = "";
-
- sdev_printk(KERN_INFO, dev, "cmds/lun %d%s%s.\n",
- dev->queue_depth, link_suffix, tag_suffix);
-
- return FALSE;
-}
-
-static int wait_on_busy(unsigned long iobase, unsigned int loop) {
-
- while (inb(iobase + REG_LCL_INTR) & BSY_ASSERTED) {
- udelay(1L);
- if (--loop == 0) return TRUE;
- }
-
- return FALSE;
-}
-
-static int board_inquiry(unsigned int j) {
- struct mscp *cpp;
- dma_addr_t id_dma_addr;
- unsigned int limit = 0;
- unsigned long time;
-
- id_dma_addr = pci_map_single(HD(j)->pdev, HD(j)->board_id,
- sizeof(HD(j)->board_id), PCI_DMA_BIDIRECTIONAL);
- cpp = &HD(j)->cp[0];
- cpp->cp_dma_addr = pci_map_single(HD(j)->pdev, cpp, sizeof(struct mscp),
- PCI_DMA_BIDIRECTIONAL);
- memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE);
- cpp->opcode = OP_HOST_ADAPTER;
- cpp->xdir = DTD_IN;
- cpp->data_address = H2DEV(id_dma_addr);
- cpp->data_len = H2DEV(sizeof(HD(j)->board_id));
- cpp->cdb_len = 6;
- cpp->cdb[0] = HA_CMD_INQUIRY;
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: board_inquiry, adapter busy.\n", BN(j));
- return TRUE;
- }
-
- HD(j)->cp_stat[0] = IGNORE;
-
- /* Clear the interrupt indication */
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
-
- /* Store pointer in OGM address bytes */
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
-
- /* Issue OGM interrupt */
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
-
- spin_unlock_irq(&driver_lock);
- time = jiffies;
- while ((jiffies - time) < HZ && limit++ < 20000) udelay(100L);
- spin_lock_irq(&driver_lock);
-
- if (cpp->adapter_status || HD(j)->cp_stat[0] != FREE) {
- HD(j)->cp_stat[0] = FREE;
- printk("%s: board_inquiry, err 0x%x.\n", BN(j), cpp->adapter_status);
- return TRUE;
- }
-
- pci_unmap_single(HD(j)->pdev, cpp->cp_dma_addr, sizeof(struct mscp),
- PCI_DMA_BIDIRECTIONAL);
- pci_unmap_single(HD(j)->pdev, id_dma_addr, sizeof(HD(j)->board_id),
- PCI_DMA_BIDIRECTIONAL);
- return FALSE;
-}
-
-static int port_detect \
- (unsigned long port_base, unsigned int j, struct scsi_host_template *tpnt) {
- unsigned char irq, dma_channel, subversion, i;
- unsigned char in_byte;
- char *bus_type, dma_name[16];
-
- /* Allowed BIOS base addresses (NULL indicates reserved) */
- unsigned long bios_segment_table[8] = {
- 0,
- 0xc4000, 0xc8000, 0xcc000, 0xd0000,
- 0xd4000, 0xd8000, 0xdc000
- };
-
- /* Allowed IRQs */
- unsigned char interrupt_table[4] = { 15, 14, 11, 10 };
-
- /* Allowed DMA channels for ISA (0 indicates reserved) */
- unsigned char dma_channel_table[4] = { 5, 6, 7, 0 };
-
- /* Head/sector mappings */
- struct {
- unsigned char heads;
- unsigned char sectors;
- } mapping_table[4] = {
- { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 }
- };
-
- struct config_1 {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char dma_channel: 2, interrupt:2,
- removable_disks_as_fixed:1, bios_segment: 3;
-#else
- unsigned char bios_segment: 3, removable_disks_as_fixed: 1,
- interrupt: 2, dma_channel: 2;
-#endif
-
- } config_1;
-
- struct config_2 {
-
-#if defined(__BIG_ENDIAN_BITFIELD)
- unsigned char tfr_port: 2, bios_drive_number: 1,
- mapping_mode: 2, ha_scsi_id: 3;
-#else
- unsigned char ha_scsi_id: 3, mapping_mode: 2,
- bios_drive_number: 1, tfr_port: 2;
-#endif
-
- } config_2;
-
- char name[16];
-
- sprintf(name, "%s%d", driver_name, j);
-
- if (!request_region(port_base, REGION_SIZE, driver_name)) {
-#if defined(DEBUG_DETECT)
- printk("%s: address 0x%03lx in use, skipping probe.\n", name, port_base);
-#endif
- goto fail;
- }
-
- spin_lock_irq(&driver_lock);
-
- if (inb(port_base + REG_PRODUCT_ID1) != PRODUCT_ID1) goto freelock;
-
- in_byte = inb(port_base + REG_PRODUCT_ID2);
-
- if ((in_byte & 0xf0) != PRODUCT_ID2) goto freelock;
-
- *(char *)&config_1 = inb(port_base + REG_CONFIG1);
- *(char *)&config_2 = inb(port_base + REG_CONFIG2);
-
- irq = interrupt_table[config_1.interrupt];
- dma_channel = dma_channel_table[config_1.dma_channel];
- subversion = (in_byte & 0x0f);
-
- /* Board detected, allocate its IRQ */
- if (request_irq(irq, do_interrupt_handler,
- (subversion == ESA) ? IRQF_SHARED : 0,
- driver_name, (void *) &sha[j])) {
- printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq);
- goto freelock;
- }
-
- if (subversion == ISA && request_dma(dma_channel, driver_name)) {
- printk("%s: unable to allocate DMA channel %u, detaching.\n",
- name, dma_channel);
- goto freeirq;
- }
-
- if (have_old_firmware) tpnt->use_clustering = DISABLE_CLUSTERING;
-
- spin_unlock_irq(&driver_lock);
- sh[j] = scsi_register(tpnt, sizeof(struct hostdata));
- spin_lock_irq(&driver_lock);
-
- if (sh[j] == NULL) {
- printk("%s: unable to register host, detaching.\n", name);
- goto freedma;
- }
-
- sh[j]->io_port = port_base;
- sh[j]->unique_id = port_base;
- sh[j]->n_io_port = REGION_SIZE;
- sh[j]->base = bios_segment_table[config_1.bios_segment];
- sh[j]->irq = irq;
- sh[j]->sg_tablesize = MAX_SGLIST;
- sh[j]->this_id = config_2.ha_scsi_id;
- sh[j]->can_queue = MAX_MAILBOXES;
- sh[j]->cmd_per_lun = MAX_CMD_PER_LUN;
-
-#if defined(DEBUG_DETECT)
- {
- unsigned char sys_mask, lcl_mask;
-
- sys_mask = inb(sh[j]->io_port + REG_SYS_MASK);
- lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK);
- printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask, lcl_mask);
- }
-#endif
-
- /* Probably a bogus host scsi id, set it to the dummy value */
- if (sh[j]->this_id == 0) sh[j]->this_id = -1;
-
- /* If BIOS is disabled, force enable interrupts */
- if (sh[j]->base == 0) outb(CMD_ENA_INTR, sh[j]->io_port + REG_SYS_MASK);
-
- memset(HD(j), 0, sizeof(struct hostdata));
- HD(j)->heads = mapping_table[config_2.mapping_mode].heads;
- HD(j)->sectors = mapping_table[config_2.mapping_mode].sectors;
- HD(j)->subversion = subversion;
- HD(j)->pdev = NULL;
- HD(j)->board_number = j;
-
- if (have_old_firmware) sh[j]->sg_tablesize = MAX_SAFE_SGLIST;
-
- if (HD(j)->subversion == ESA) {
- sh[j]->unchecked_isa_dma = FALSE;
- sh[j]->dma_channel = NO_DMA;
- sprintf(BN(j), "U34F%d", j);
- bus_type = "VESA";
- }
- else {
- unsigned long flags;
- sh[j]->unchecked_isa_dma = TRUE;
-
- flags=claim_dma_lock();
- disable_dma(dma_channel);
- clear_dma_ff(dma_channel);
- set_dma_mode(dma_channel, DMA_MODE_CASCADE);
- enable_dma(dma_channel);
- release_dma_lock(flags);
-
- sh[j]->dma_channel = dma_channel;
- sprintf(BN(j), "U14F%d", j);
- bus_type = "ISA";
- }
-
- sh[j]->max_channel = MAX_CHANNEL - 1;
- sh[j]->max_id = MAX_TARGET;
- sh[j]->max_lun = MAX_LUN;
-
- if (HD(j)->subversion == ISA && !board_inquiry(j)) {
- HD(j)->board_id[40] = 0;
-
- if (strcmp(&HD(j)->board_id[32], "06000600")) {
- printk("%s: %s.\n", BN(j), &HD(j)->board_id[8]);
- printk("%s: firmware %s is outdated, FW PROM should be 28004-006.\n",
- BN(j), &HD(j)->board_id[32]);
- sh[j]->hostt->use_clustering = DISABLE_CLUSTERING;
- sh[j]->sg_tablesize = MAX_SAFE_SGLIST;
- }
- }
-
- if (dma_channel == NO_DMA) sprintf(dma_name, "%s", "BMST");
- else sprintf(dma_name, "DMA %u", dma_channel);
-
- spin_unlock_irq(&driver_lock);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- HD(j)->cp[i].cp_dma_addr = pci_map_single(HD(j)->pdev,
- &HD(j)->cp[i], sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- if (! ((&HD(j)->cp[i])->sglist = kmalloc(
- sh[j]->sg_tablesize * sizeof(struct sg_list),
- (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) {
- printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i);
- goto release;
- }
-
- if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN)
- max_queue_depth = MAX_TAGGED_CMD_PER_LUN;
-
- if (max_queue_depth < MAX_CMD_PER_LUN) max_queue_depth = MAX_CMD_PER_LUN;
-
- if (tag_mode != TAG_DISABLED && tag_mode != TAG_SIMPLE)
- tag_mode = TAG_ORDERED;
-
- if (j == 0) {
- printk("UltraStor 14F/34F: Copyright (C) 1994-2003 Dario Ballabio.\n");
- printk("%s config options -> of:%c, tm:%d, lc:%c, mq:%d, et:%c.\n",
- driver_name, YESNO(have_old_firmware), tag_mode,
- YESNO(linked_comm), max_queue_depth, YESNO(ext_tran));
- }
-
- printk("%s: %s 0x%03lx, BIOS 0x%05x, IRQ %u, %s, SG %d, MB %d.\n",
- BN(j), bus_type, (unsigned long)sh[j]->io_port, (int)sh[j]->base,
- sh[j]->irq, dma_name, sh[j]->sg_tablesize, sh[j]->can_queue);
-
- if (sh[j]->max_id > 8 || sh[j]->max_lun > 8)
- printk("%s: wide SCSI support enabled, max_id %u, max_lun %llu.\n",
- BN(j), sh[j]->max_id, sh[j]->max_lun);
-
- for (i = 0; i <= sh[j]->max_channel; i++)
- printk("%s: SCSI channel %u enabled, host target ID %d.\n",
- BN(j), i, sh[j]->this_id);
-
- return TRUE;
-
-freedma:
- if (subversion == ISA) free_dma(dma_channel);
-freeirq:
- free_irq(irq, &sha[j]);
-freelock:
- spin_unlock_irq(&driver_lock);
- release_region(port_base, REGION_SIZE);
-fail:
- return FALSE;
-
-release:
- u14_34f_release(sh[j]);
- return FALSE;
-}
-
-static void internal_setup(char *str, int *ints) {
- int i, argc = ints[0];
- char *cur = str, *pc;
-
- if (argc > 0) {
-
- if (argc > MAX_INT_PARAM) argc = MAX_INT_PARAM;
-
- for (i = 0; i < argc; i++) io_port[i] = ints[i + 1];
-
- io_port[i] = 0;
- setup_done = TRUE;
- }
-
- while (cur && (pc = strchr(cur, ':'))) {
- int val = 0, c = *++pc;
-
- if (c == 'n' || c == 'N') val = FALSE;
- else if (c == 'y' || c == 'Y') val = TRUE;
- else val = (int) simple_strtoul(pc, NULL, 0);
-
- if (!strncmp(cur, "lc:", 3)) linked_comm = val;
- else if (!strncmp(cur, "of:", 3)) have_old_firmware = val;
- else if (!strncmp(cur, "tm:", 3)) tag_mode = val;
- else if (!strncmp(cur, "tc:", 3)) tag_mode = val;
- else if (!strncmp(cur, "mq:", 3)) max_queue_depth = val;
- else if (!strncmp(cur, "ls:", 3)) link_statistics = val;
- else if (!strncmp(cur, "et:", 3)) ext_tran = val;
-
- if ((cur = strchr(cur, ','))) ++cur;
- }
-
- return;
-}
-
-static int option_setup(char *str) {
- int ints[MAX_INT_PARAM];
- char *cur = str;
- int i = 1;
-
- while (cur && isdigit(*cur) && i < MAX_INT_PARAM) {
- ints[i++] = simple_strtoul(cur, NULL, 0);
-
- if ((cur = strchr(cur, ',')) != NULL) cur++;
- }
-
- ints[0] = i - 1;
- internal_setup(cur, ints);
- return 1;
-}
-
-static int u14_34f_detect(struct scsi_host_template *tpnt) {
- unsigned int j = 0, k;
-
- tpnt->proc_name = "u14-34f";
-
- if(strlen(boot_options)) option_setup(boot_options);
-
-#if defined(MODULE)
- /* io_port could have been modified when loading as a module */
- if(io_port[0] != SKIP) {
- setup_done = TRUE;
- io_port[MAX_INT_PARAM] = 0;
- }
-#endif
-
- for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL;
-
- for (k = 0; io_port[k]; k++) {
-
- if (io_port[k] == SKIP) continue;
-
- if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++;
- }
-
- num_boards = j;
- return j;
-}
-
-static void map_dma(unsigned int i, unsigned int j) {
- unsigned int data_len = 0;
- unsigned int k, pci_dir;
- int count;
- struct scatterlist *sg;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (SCpnt->sense_buffer)
- cpp->sense_addr = H2DEV(pci_map_single(HD(j)->pdev, SCpnt->sense_buffer,
- SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
-
- cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
-
- if (scsi_bufflen(SCpnt)) {
- count = scsi_dma_map(SCpnt);
- BUG_ON(count < 0);
-
- scsi_for_each_sg(SCpnt, sg, count, k) {
- cpp->sglist[k].address = H2DEV(sg_dma_address(sg));
- cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg));
- data_len += sg->length;
- }
-
- cpp->sg = TRUE;
- cpp->use_sg = scsi_sg_count(SCpnt);
- cpp->data_address =
- H2DEV(pci_map_single(HD(j)->pdev, cpp->sglist,
- cpp->use_sg * sizeof(struct sg_list),
- pci_dir));
- cpp->data_len = H2DEV(data_len);
-
- } else {
- pci_dir = PCI_DMA_BIDIRECTIONAL;
- cpp->data_len = H2DEV(scsi_bufflen(SCpnt));
- }
-}
-
-static void unmap_dma(unsigned int i, unsigned int j) {
- unsigned int pci_dir;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (DEV2H(cpp->sense_addr))
- pci_unmap_single(HD(j)->pdev, DEV2H(cpp->sense_addr),
- DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE);
-
- scsi_dma_unmap(SCpnt);
-
- if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL;
-
- if (DEV2H(cpp->data_address))
- pci_unmap_single(HD(j)->pdev, DEV2H(cpp->data_address),
- DEV2H(cpp->data_len), pci_dir);
-}
-
-static void sync_dma(unsigned int i, unsigned int j) {
- unsigned int pci_dir;
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
- pci_dir = SCpnt->sc_data_direction;
-
- if (DEV2H(cpp->sense_addr))
- pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->sense_addr),
- DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE);
-
- if (scsi_sg_count(SCpnt))
- pci_dma_sync_sg_for_cpu(HD(j)->pdev, scsi_sglist(SCpnt),
- scsi_sg_count(SCpnt), pci_dir);
-
- if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL;
-
- if (DEV2H(cpp->data_address))
- pci_dma_sync_single_for_cpu(HD(j)->pdev, DEV2H(cpp->data_address),
- DEV2H(cpp->data_len), pci_dir);
-}
-
-static void scsi_to_dev_dir(unsigned int i, unsigned int j) {
- unsigned int k;
-
- static const unsigned char data_out_cmds[] = {
- 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e,
- 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40,
- 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d
- };
-
- static const unsigned char data_none_cmds[] = {
- 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e,
- 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47,
- 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00
- };
-
- struct mscp *cpp;
- struct scsi_cmnd *SCpnt;
-
- cpp = &HD(j)->cp[i]; SCpnt = cpp->SCpnt;
-
- if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
- cpp->xdir = DTD_IN;
- return;
- }
- else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
- cpp->xdir = DTD_OUT;
- return;
- }
- else if (SCpnt->sc_data_direction == DMA_NONE) {
- cpp->xdir = DTD_NONE;
- return;
- }
-
- if (SCpnt->sc_data_direction != DMA_BIDIRECTIONAL)
- panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n", BN(j));
-
- cpp->xdir = DTD_IN;
-
- for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++)
- if (SCpnt->cmnd[0] == data_out_cmds[k]) {
- cpp->xdir = DTD_OUT;
- break;
- }
-
- if (cpp->xdir == DTD_IN)
- for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++)
- if (SCpnt->cmnd[0] == data_none_cmds[k]) {
- cpp->xdir = DTD_NONE;
- break;
- }
-
-}
-
-static int u14_34f_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) {
- unsigned int i, j, k;
- struct mscp *cpp;
-
- /* j is the board number */
- j = ((struct hostdata *) SCpnt->device->host->hostdata)->board_number;
-
- if (SCpnt->host_scribble)
- panic("%s: qcomm, SCpnt %p already active.\n",
- BN(j), SCpnt);
-
- /* i is the mailbox number, look for the first free mailbox
- starting from last_cp_used */
- i = HD(j)->last_cp_used + 1;
-
- for (k = 0; k < sh[j]->can_queue; k++, i++) {
-
- if (i >= sh[j]->can_queue) i = 0;
-
- if (HD(j)->cp_stat[i] == FREE) {
- HD(j)->last_cp_used = i;
- break;
- }
- }
-
- if (k == sh[j]->can_queue) {
- printk("%s: qcomm, no free mailbox.\n", BN(j));
- return 1;
- }
-
- /* Set pointer to control packet structure */
- cpp = &HD(j)->cp[i];
-
- memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE);
- SCpnt->scsi_done = done;
- cpp->cpp_index = i;
- SCpnt->host_scribble = (unsigned char *) &cpp->cpp_index;
-
- if (do_trace) printk("%s: qcomm, mbox %d, target %d.%d:%u.\n",
- BN(j), i, SCpnt->device->channel, SCpnt->device->id,
- (u8)SCpnt->device->lun);
-
- cpp->opcode = OP_SCSI;
- cpp->channel = SCpnt->device->channel;
- cpp->target = SCpnt->device->id;
- cpp->lun = (u8)SCpnt->device->lun;
- cpp->SCpnt = SCpnt;
- cpp->cdb_len = SCpnt->cmd_len;
- memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len);
-
- /* Use data transfer direction SCpnt->sc_data_direction */
- scsi_to_dev_dir(i, j);
-
- /* Map DMA buffers and SG list */
- map_dma(i, j);
-
- if (linked_comm && SCpnt->device->queue_depth > 2
- && TLDEV(SCpnt->device->type)) {
- HD(j)->cp_stat[i] = READY;
- flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, FALSE);
- return 0;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- unmap_dma(i, j);
- SCpnt->host_scribble = NULL;
- scmd_printk(KERN_INFO, SCpnt,
- "qcomm, adapter busy.\n");
- return 1;
- }
-
- /* Store pointer in OGM address bytes */
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
-
- /* Issue OGM interrupt */
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
-
- HD(j)->cp_stat[i] = IN_USE;
- return 0;
-}
-
-static DEF_SCSI_QCMD(u14_34f_queuecommand)
-
-static int u14_34f_eh_abort(struct scsi_cmnd *SCarg) {
- unsigned int i, j;
-
- j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number;
-
- if (SCarg->host_scribble == NULL) {
- scmd_printk(KERN_INFO, SCarg, "abort, command inactive.\n");
- return SUCCESS;
- }
-
- i = *(unsigned int *)SCarg->host_scribble;
- scmd_printk(KERN_INFO, SCarg, "abort, mbox %d.\n", i);
-
- if (i >= sh[j]->can_queue)
- panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j));
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: abort, timeout error.\n", BN(j));
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == FREE) {
- printk("%s: abort, mbox %d is free.\n", BN(j), i);
- return SUCCESS;
- }
-
- if (HD(j)->cp_stat[i] == IN_USE) {
- printk("%s: abort, mbox %d is in use.\n", BN(j), i);
-
- if (SCarg != HD(j)->cp[i].SCpnt)
- panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
- BN(j), i, SCarg, HD(j)->cp[i].SCpnt);
-
- if (inb(sh[j]->io_port + REG_SYS_INTR) & IRQ_ASSERTED)
- printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i);
-
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == IN_RESET) {
- printk("%s: abort, mbox %d is in reset.\n", BN(j), i);
- return FAILED;
- }
-
- if (HD(j)->cp_stat[i] == LOCKED) {
- printk("%s: abort, mbox %d is locked.\n", BN(j), i);
- return SUCCESS;
- }
-
- if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
- unmap_dma(i, j);
- SCarg->result = DID_ABORT << 16;
- SCarg->host_scribble = NULL;
- HD(j)->cp_stat[i] = FREE;
- printk("%s, abort, mbox %d ready, DID_ABORT, done.\n", BN(j), i);
- SCarg->scsi_done(SCarg);
- return SUCCESS;
- }
-
- panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j), i);
-}
-
-static int u14_34f_eh_host_reset(struct scsi_cmnd *SCarg) {
- unsigned int i, j, k, c, limit = 0;
- unsigned long time;
- int arg_done = FALSE;
- struct scsi_cmnd *SCpnt;
-
- j = ((struct hostdata *) SCarg->device->host->hostdata)->board_number;
- scmd_printk(KERN_INFO, SCarg, "reset, enter.\n");
-
- spin_lock_irq(sh[j]->host_lock);
-
- if (SCarg->host_scribble == NULL)
- printk("%s: reset, inactive.\n", BN(j));
-
- if (HD(j)->in_reset) {
- printk("%s: reset, exit, already in reset.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: reset, exit, timeout error.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- HD(j)->retries = 0;
-
- for (c = 0; c <= sh[j]->max_channel; c++)
- for (k = 0; k < sh[j]->max_id; k++) {
- HD(j)->target_redo[k][c] = TRUE;
- HD(j)->target_to[k][c] = 0;
- }
-
- for (i = 0; i < sh[j]->can_queue; i++) {
-
- if (HD(j)->cp_stat[i] == FREE) continue;
-
- if (HD(j)->cp_stat[i] == LOCKED) {
- HD(j)->cp_stat[i] = FREE;
- printk("%s: reset, locked mbox %d forced free.\n", BN(j), i);
- continue;
- }
-
- if (!(SCpnt = HD(j)->cp[i].SCpnt))
- panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j), i);
-
- if (HD(j)->cp_stat[i] == READY || HD(j)->cp_stat[i] == ABORTING) {
- HD(j)->cp_stat[i] = ABORTING;
- printk("%s: reset, mbox %d aborting.\n", BN(j), i);
- }
-
- else {
- HD(j)->cp_stat[i] = IN_RESET;
- printk("%s: reset, mbox %d in reset.\n", BN(j), i);
- }
-
- if (SCpnt->host_scribble == NULL)
- panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j), i);
-
- if (*(unsigned int *)SCpnt->host_scribble != i)
- panic("%s: reset, mbox %d, index mismatch.\n", BN(j), i);
-
- if (SCpnt->scsi_done == NULL)
- panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j), i);
-
- if (SCpnt == SCarg) arg_done = TRUE;
- }
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- printk("%s: reset, cannot reset, timeout error.\n", BN(j));
- spin_unlock_irq(sh[j]->host_lock);
- return FAILED;
- }
-
- outb(CMD_RESET, sh[j]->io_port + REG_LCL_INTR);
- printk("%s: reset, board reset done, enabling interrupts.\n", BN(j));
-
-#if defined(DEBUG_RESET)
- do_trace = TRUE;
-#endif
-
- HD(j)->in_reset = TRUE;
-
- spin_unlock_irq(sh[j]->host_lock);
- time = jiffies;
- while ((jiffies - time) < (10 * HZ) && limit++ < 200000) udelay(100L);
- spin_lock_irq(sh[j]->host_lock);
-
- printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit);
-
- for (i = 0; i < sh[j]->can_queue; i++) {
-
- if (HD(j)->cp_stat[i] == IN_RESET) {
- SCpnt = HD(j)->cp[i].SCpnt;
- unmap_dma(i, j);
- SCpnt->result = DID_RESET << 16;
- SCpnt->host_scribble = NULL;
-
- /* This mailbox is still waiting for its interrupt */
- HD(j)->cp_stat[i] = LOCKED;
-
- printk("%s, reset, mbox %d locked, DID_RESET, done.\n", BN(j), i);
- }
-
- else if (HD(j)->cp_stat[i] == ABORTING) {
- SCpnt = HD(j)->cp[i].SCpnt;
- unmap_dma(i, j);
- SCpnt->result = DID_RESET << 16;
- SCpnt->host_scribble = NULL;
-
- /* This mailbox was never queued to the adapter */
- HD(j)->cp_stat[i] = FREE;
-
- printk("%s, reset, mbox %d aborting, DID_RESET, done.\n", BN(j), i);
- }
-
- else
-
- /* Any other mailbox has already been set free by interrupt */
- continue;
-
- SCpnt->scsi_done(SCpnt);
- }
-
- HD(j)->in_reset = FALSE;
- do_trace = FALSE;
-
- if (arg_done) printk("%s: reset, exit, done.\n", BN(j));
- else printk("%s: reset, exit.\n", BN(j));
-
- spin_unlock_irq(sh[j]->host_lock);
- return SUCCESS;
-}
-
-static int u14_34f_bios_param(struct scsi_device *disk,
- struct block_device *bdev, sector_t capacity, int *dkinfo) {
- unsigned int j = 0;
- unsigned int size = capacity;
-
- dkinfo[0] = HD(j)->heads;
- dkinfo[1] = HD(j)->sectors;
- dkinfo[2] = size / (HD(j)->heads * HD(j)->sectors);
-
- if (ext_tran && (scsicam_bios_param(bdev, capacity, dkinfo) < 0)) {
- dkinfo[0] = 255;
- dkinfo[1] = 63;
- dkinfo[2] = size / (dkinfo[0] * dkinfo[1]);
- }
-
-#if defined (DEBUG_GEOMETRY)
- printk ("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name,
- dkinfo[0], dkinfo[1], dkinfo[2]);
-#endif
-
- return FALSE;
-}
-
-static void sort(unsigned long sk[], unsigned int da[], unsigned int n,
- unsigned int rev) {
- unsigned int i, j, k, y;
- unsigned long x;
-
- for (i = 0; i < n - 1; i++) {
- k = i;
-
- for (j = k + 1; j < n; j++)
- if (rev) {
- if (sk[j] > sk[k]) k = j;
- }
- else {
- if (sk[j] < sk[k]) k = j;
- }
-
- if (k != i) {
- x = sk[k]; sk[k] = sk[i]; sk[i] = x;
- y = da[k]; da[k] = da[i]; da[i] = y;
- }
- }
-
- return;
- }
-
-static int reorder(unsigned int j, unsigned long cursec,
- unsigned int ihdlr, unsigned int il[], unsigned int n_ready) {
- struct scsi_cmnd *SCpnt;
- struct mscp *cpp;
- unsigned int k, n;
- unsigned int rev = FALSE, s = TRUE, r = TRUE;
- unsigned int input_only = TRUE, overlap = FALSE;
- unsigned long sl[n_ready], pl[n_ready], ll[n_ready];
- unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0;
- unsigned long ioseek = 0;
-
- static unsigned int flushcount = 0, batchcount = 0, sortcount = 0;
- static unsigned int readycount = 0, ovlcount = 0, inputcount = 0;
- static unsigned int readysorted = 0, revcount = 0;
- static unsigned long seeksorted = 0, seeknosort = 0;
-
- if (link_statistics && !(++flushcount % link_statistics))
- printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\
- " av %ldK as %ldK.\n", flushcount, batchcount, inputcount,
- ovlcount, readycount, readysorted, sortcount, revcount,
- seeknosort / (readycount + 1),
- seeksorted / (readycount + 1));
-
- if (n_ready <= 1) return FALSE;
-
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (!(cpp->xdir == DTD_IN)) input_only = FALSE;
-
- if (blk_rq_pos(SCpnt->request) < minsec)
- minsec = blk_rq_pos(SCpnt->request);
- if (blk_rq_pos(SCpnt->request) > maxsec)
- maxsec = blk_rq_pos(SCpnt->request);
-
- sl[n] = blk_rq_pos(SCpnt->request);
- ioseek += blk_rq_sectors(SCpnt->request);
-
- if (!n) continue;
-
- if (sl[n] < sl[n - 1]) s = FALSE;
- if (sl[n] > sl[n - 1]) r = FALSE;
-
- if (link_statistics) {
- if (sl[n] > sl[n - 1])
- seek += sl[n] - sl[n - 1];
- else
- seek += sl[n - 1] - sl[n];
- }
-
- }
-
- if (link_statistics) {
- if (cursec > sl[0]) seek += cursec - sl[0]; else seek += sl[0] - cursec;
- }
-
- if (cursec > ((maxsec + minsec) / 2)) rev = TRUE;
-
- if (ioseek > ((maxsec - minsec) / 2)) rev = FALSE;
-
- if (!((rev && r) || (!rev && s))) sort(sl, il, n_ready, rev);
-
- if (!input_only) for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
- ll[n] = blk_rq_sectors(SCpnt->request); pl[n] = SCpnt->serial_number;
-
- if (!n) continue;
-
- if ((sl[n] == sl[n - 1]) || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n]))
- || (rev && ((sl[n] + ll[n]) > sl[n - 1]))) overlap = TRUE;
- }
-
- if (overlap) sort(pl, il, n_ready, FALSE);
-
- if (link_statistics) {
- if (cursec > sl[0]) iseek = cursec - sl[0]; else iseek = sl[0] - cursec;
- batchcount++; readycount += n_ready; seeknosort += seek / 1024;
- if (input_only) inputcount++;
- if (overlap) { ovlcount++; seeksorted += iseek / 1024; }
- else seeksorted += (iseek + maxsec - minsec) / 1024;
- if (rev && !r) { revcount++; readysorted += n_ready; }
- if (!rev && !s) { sortcount++; readysorted += n_ready; }
- }
-
-#if defined(DEBUG_LINKED_COMMANDS)
- if (link_statistics && (overlap || !(flushcount % link_statistics)))
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
- printk("%s %d.%d:%llu mb %d fc %d nr %d sec %ld ns %u"\
- " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
- (ihdlr ? "ihdlr" : "qcomm"), SCpnt->channel, SCpnt->target,
- (u8)SCpnt->lun, k, flushcount, n_ready,
- blk_rq_pos(SCpnt->request), blk_rq_sectors(SCpnt->request),
- cursec, YESNO(s), YESNO(r), YESNO(rev), YESNO(input_only),
- YESNO(overlap), cpp->xdir);
- }
-#endif
- return overlap;
-}
-
-static void flush_dev(struct scsi_device *dev, unsigned long cursec, unsigned int j,
- unsigned int ihdlr) {
- struct scsi_cmnd *SCpnt;
- struct mscp *cpp;
- unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES];
-
- for (k = 0; k < sh[j]->can_queue; k++) {
-
- if (HD(j)->cp_stat[k] != READY && HD(j)->cp_stat[k] != IN_USE) continue;
-
- cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (SCpnt->device != dev) continue;
-
- if (HD(j)->cp_stat[k] == IN_USE) return;
-
- il[n_ready++] = k;
- }
-
- if (reorder(j, cursec, ihdlr, il, n_ready)) n_ready = 1;
-
- for (n = 0; n < n_ready; n++) {
- k = il[n]; cpp = &HD(j)->cp[k]; SCpnt = cpp->SCpnt;
-
- if (wait_on_busy(sh[j]->io_port, MAXLOOP)) {
- scmd_printk(KERN_INFO, SCpnt,
- "%s, mbox %d, adapter"
- " busy, will abort.\n", (ihdlr ? "ihdlr" : "qcomm"),
- k);
- HD(j)->cp_stat[k] = ABORTING;
- continue;
- }
-
- outl(H2DEV(cpp->cp_dma_addr), sh[j]->io_port + REG_OGM);
- outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR);
- HD(j)->cp_stat[k] = IN_USE;
- }
-
-}
-
-static irqreturn_t ihdlr(unsigned int j)
-{
- struct scsi_cmnd *SCpnt;
- unsigned int i, k, c, status, tstatus, reg, ret;
- struct mscp *spp, *cpp;
- int irq = sh[j]->irq;
-
- /* Check if this board need to be serviced */
- if (!((reg = inb(sh[j]->io_port + REG_SYS_INTR)) & IRQ_ASSERTED)) goto none;
-
- HD(j)->iocount++;
-
- if (do_trace) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j), irq,
- HD(j)->iocount);
-
- /* Check if this board is still busy */
- if (wait_on_busy(sh[j]->io_port, 20 * MAXLOOP)) {
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
- printk("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n",
- BN(j), irq, reg, HD(j)->iocount);
- goto none;
- }
-
- ret = inl(sh[j]->io_port + REG_ICM);
-
- /* Clear interrupt pending flag */
- outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR);
-
- /* Find the mailbox to be serviced on this board */
- for (i = 0; i < sh[j]->can_queue; i++)
- if (H2DEV(HD(j)->cp[i].cp_dma_addr) == ret) break;
-
- if (i >= sh[j]->can_queue)
- panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j),
- (void *)ret, (void *)H2DEV(HD(j)->cp[0].cp_dma_addr));
-
- cpp = &(HD(j)->cp[i]);
- spp = cpp;
-
-#if defined(DEBUG_GENERATE_ABORTS)
- if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 500) < 3)) goto handled;
-#endif
-
- if (HD(j)->cp_stat[i] == IGNORE) {
- HD(j)->cp_stat[i] = FREE;
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == LOCKED) {
- HD(j)->cp_stat[i] = FREE;
- printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i,
- HD(j)->iocount);
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == FREE) {
- printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j), i,
- HD(j)->iocount);
- goto handled;
- }
- else if (HD(j)->cp_stat[i] == IN_RESET)
- printk("%s: ihdlr, mbox %d is in reset.\n", BN(j), i);
- else if (HD(j)->cp_stat[i] != IN_USE)
- panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n",
- BN(j), i, HD(j)->cp_stat[i]);
-
- HD(j)->cp_stat[i] = FREE;
- SCpnt = cpp->SCpnt;
-
- if (SCpnt == NULL) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j), i);
-
- if (SCpnt->host_scribble == NULL)
- panic("%s: ihdlr, mbox %d, SCpnt %p garbled.\n", BN(j), i,
- SCpnt);
-
- if (*(unsigned int *)SCpnt->host_scribble != i)
- panic("%s: ihdlr, mbox %d, index mismatch %d.\n",
- BN(j), i, *(unsigned int *)SCpnt->host_scribble);
-
- sync_dma(i, j);
-
- if (linked_comm && SCpnt->device->queue_depth > 2
- && TLDEV(SCpnt->device->type))
- flush_dev(SCpnt->device, blk_rq_pos(SCpnt->request), j, TRUE);
-
- tstatus = status_byte(spp->target_status);
-
-#if defined(DEBUG_GENERATE_ERRORS)
- if ((HD(j)->iocount > 500) && ((HD(j)->iocount % 200) < 2))
- spp->adapter_status = 0x01;
-#endif
-
- switch (spp->adapter_status) {
- case ASOK: /* status OK */
-
- /* Forces a reset if a disk drive keeps returning BUSY */
- if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE)
- status = DID_ERROR << 16;
-
- /* If there was a bus reset, redo operation on each target */
- else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK
- && HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)])
- status = DID_BUS_BUSY << 16;
-
- /* Works around a flaw in scsi.c */
- else if (tstatus == CHECK_CONDITION
- && SCpnt->device->type == TYPE_DISK
- && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR)
- status = DID_BUS_BUSY << 16;
-
- else
- status = DID_OK << 16;
-
- if (tstatus == GOOD)
- HD(j)->target_redo[scmd_id(SCpnt)][scmd_channel(SCpnt)] = FALSE;
-
- if (spp->target_status && SCpnt->device->type == TYPE_DISK &&
- (!(tstatus == CHECK_CONDITION && HD(j)->iocount <= 1000 &&
- (SCpnt->sense_buffer[2] & 0xf) == NOT_READY)))
- scmd_printk(KERN_INFO, SCpnt,
- "ihdlr, target_status 0x%x, sense key 0x%x.\n",
- spp->target_status,
- SCpnt->sense_buffer[2]);
-
- HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] = 0;
-
- if (HD(j)->last_retried_pid == SCpnt->serial_number) HD(j)->retries = 0;
-
- break;
- case ASST: /* Selection Time Out */
-
- if (HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)] > 1)
- status = DID_ERROR << 16;
- else {
- status = DID_TIME_OUT << 16;
- HD(j)->target_to[scmd_id(SCpnt)][scmd_channel(SCpnt)]++;
- }
-
- break;
-
- /* Perform a limited number of internal retries */
- case 0x93: /* Unexpected bus free */
- case 0x94: /* Target bus phase sequence failure */
- case 0x96: /* Illegal SCSI command */
- case 0xa3: /* SCSI bus reset error */
-
- for (c = 0; c <= sh[j]->max_channel; c++)
- for (k = 0; k < sh[j]->max_id; k++)
- HD(j)->target_redo[k][c] = TRUE;
-
-
- case 0x92: /* Data over/under-run */
-
- if (SCpnt->device->type != TYPE_TAPE
- && HD(j)->retries < MAX_INTERNAL_RETRIES) {
-
-#if defined(DID_SOFT_ERROR)
- status = DID_SOFT_ERROR << 16;
-#else
- status = DID_BUS_BUSY << 16;
-#endif
-
- HD(j)->retries++;
- HD(j)->last_retried_pid = SCpnt->serial_number;
- }
- else
- status = DID_ERROR << 16;
-
- break;
- case 0x01: /* Invalid command */
- case 0x02: /* Invalid parameters */
- case 0x03: /* Invalid data list */
- case 0x84: /* SCSI bus abort error */
- case 0x9b: /* Auto request sense error */
- case 0x9f: /* Unexpected command complete message error */
- case 0xff: /* Invalid parameter in the S/G list */
- default:
- status = DID_ERROR << 16;
- break;
- }
-
- SCpnt->result = status | spp->target_status;
-
-#if defined(DEBUG_INTERRUPT)
- if (SCpnt->result || do_trace)
-#else
- if ((spp->adapter_status != ASOK && HD(j)->iocount > 1000) ||
- (spp->adapter_status != ASOK &&
- spp->adapter_status != ASST && HD(j)->iocount <= 1000) ||
- do_trace || msg_byte(spp->target_status))
-#endif
- scmd_printk(KERN_INFO, SCpnt, "ihdlr, mbox %2d, err 0x%x:%x,"\
- " reg 0x%x, count %d.\n",
- i, spp->adapter_status, spp->target_status,
- reg, HD(j)->iocount);
-
- unmap_dma(i, j);
-
- /* Set the command state to inactive */
- SCpnt->host_scribble = NULL;
-
- SCpnt->scsi_done(SCpnt);
-
- if (do_trace) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j), irq,
- HD(j)->iocount);
-
-handled:
- return IRQ_HANDLED;
-none:
- return IRQ_NONE;
-}
-
-static irqreturn_t do_interrupt_handler(int irq, void *shap) {
- unsigned int j;
- unsigned long spin_flags;
- irqreturn_t ret;
-
- /* Check if the interrupt must be processed by this handler */
- if ((j = (unsigned int)((char *)shap - sha)) >= num_boards) return IRQ_NONE;
-
- spin_lock_irqsave(sh[j]->host_lock, spin_flags);
- ret = ihdlr(j);
- spin_unlock_irqrestore(sh[j]->host_lock, spin_flags);
- return ret;
-}
-
-static int u14_34f_release(struct Scsi_Host *shpnt) {
- unsigned int i, j;
-
- for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++);
-
- if (sh[j] == NULL)
- panic("%s: release, invalid Scsi_Host pointer.\n", driver_name);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- kfree((&HD(j)->cp[i])->sglist);
-
- for (i = 0; i < sh[j]->can_queue; i++)
- pci_unmap_single(HD(j)->pdev, HD(j)->cp[i].cp_dma_addr,
- sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL);
-
- free_irq(sh[j]->irq, &sha[j]);
-
- if (sh[j]->dma_channel != NO_DMA)
- free_dma(sh[j]->dma_channel);
-
- release_region(sh[j]->io_port, sh[j]->n_io_port);
- scsi_unregister(sh[j]);
- return FALSE;
-}
-
-#include "scsi_module.c"
-
-#ifndef MODULE
-__setup("u14-34f=", option_setup);
-#endif /* end MODULE */
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 5/7] pas16: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (3 preceding siblings ...)
2016-09-19 15:50 ` [PATCH 4/7] u14-34f: " Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-20 0:12 ` Finn Thain
2016-09-19 15:50 ` [PATCH 6/7] t128: " Christoph Hellwig
` (3 subsequent siblings)
8 siblings, 1 reply; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/scsi-parameters.txt | 3 -
MAINTAINERS | 1 -
drivers/scsi/Kconfig | 14 -
drivers/scsi/Makefile | 1 -
drivers/scsi/pas16.c | 565 ---------------------------------
drivers/scsi/pas16.h | 121 -------
6 files changed, 705 deletions(-)
delete mode 100644 drivers/scsi/pas16.c
delete mode 100644 drivers/scsi/pas16.h
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 083bd93..fe77b5a 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -80,9 +80,6 @@ parameters may be changed at runtime by the command
Format: <buffer_size>,<write_threshold>
See also Documentation/scsi/st.txt.
- pas16= [HW,SCSI]
- See header of drivers/scsi/pas16.c.
-
scsi_debug_*= [SCSI]
See drivers/scsi/scsi_debug.c.
diff --git a/MAINTAINERS b/MAINTAINERS
index 6ca763f..2a0c056 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8052,7 +8052,6 @@ F: drivers/scsi/dtc.*
F: drivers/scsi/g_NCR5380.*
F: drivers/scsi/g_NCR5380_mmio.c
F: drivers/scsi/mac_scsi.*
-F: drivers/scsi/pas16.*
F: drivers/scsi/sun3_scsi.*
F: drivers/scsi/sun3_scsi_vme.c
F: drivers/scsi/t128.*
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 6978531..ee83d95 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1225,20 +1225,6 @@ config SCSI_NCR53C8XX_NO_DISCONNECT
not allow targets to disconnect is not reasonable if there is more
than 1 device on a SCSI bus. The normal answer therefore is N.
-config SCSI_PAS16
- tristate "PAS16 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- ---help---
- This is support for a SCSI host adapter. It is explained in section
- 3.10 of the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/pas16.h>.
-
- To compile this driver as a module, choose M here: the
- module will be called pas16.
-
config SCSI_QLOGIC_FAS
tristate "Qlogic FAS SCSI support"
depends on ISA && SCSI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 921cf07..be3108c 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -87,7 +87,6 @@ obj-$(CONFIG_SCSI_QLA_ISCSI) += libiscsi.o qla4xxx/
obj-$(CONFIG_SCSI_LPFC) += lpfc/
obj-$(CONFIG_SCSI_BFA_FC) += bfa/
obj-$(CONFIG_SCSI_CHELSIO_FCOE) += csiostor/
-obj-$(CONFIG_SCSI_PAS16) += pas16.o
obj-$(CONFIG_SCSI_T128) += t128.o
obj-$(CONFIG_SCSI_DMX3191D) += dmx3191d.o
obj-$(CONFIG_SCSI_HPSA) += hpsa.o
diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c
deleted file mode 100644
index 2f689ae..0000000
--- a/drivers/scsi/pas16.c
+++ /dev/null
@@ -1,565 +0,0 @@
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - There are many different models of
- * the Pro Audio Spectrum/Studio 16, and I only have one of
- * them, so this may require a little tweaking. An interrupt
- * is triggered to autoprobe for the interrupt line. Note:
- * with the newer model boards, the interrupt is set via
- * software after reset using the default_irq for the
- * current board number.
- *
- * 2. With command line overrides - pas16=port,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 3. With the PAS16_OVERRIDE compile time define. This is
- * specified as an array of address, irq tuples. Ie, for
- * one board at the default 0x388 address, IRQ10, I could say
- * -DPAS16_OVERRIDE={{0x388, 10}}
- * NOTE: Untested.
- *
- * 4. When included as a module, with arguments passed on the command line:
- * pas16_irq=xx the interrupt
- * pas16_addr=xx the port
- * e.g. "modprobe pas16 pas16_addr=0x388 pas16_irq=5"
- *
- * Note that if the override methods are used, place holders must
- * be specified for other boards in the system.
- *
- *
- * Configuration notes :
- * The current driver does not support interrupt sharing with the
- * sound portion of the card. If you use the same irq for the
- * scsi port and sound you will have problems. Either use
- * a different irq for the scsi port or don't use interrupts
- * for the scsi port.
- *
- * If you have problems with your card not being recognized, use
- * the LILO command line override. Try to get it recognized without
- * interrupts. Ie, for a board at the default 0x388 base port,
- * boot: linux pas16=0x388,0
- *
- * NO_IRQ (0) should be specified for no interrupt,
- * IRQ_AUTO (254) to autoprobe for an IRQ line if overridden
- * on the command line.
- */
-
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <scsi/scsi_host.h>
-#include "pas16.h"
-#include "NCR5380.h"
-
-
-static unsigned short pas16_addr;
-static int pas16_irq;
-
-
-static const int scsi_irq_translate[] =
- { 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 7, 8, 9, 0, 10, 11 };
-
-/* The default_irqs array contains values used to set the irq into the
- * board via software (as must be done on newer model boards without
- * irq jumpers on the board). The first value in the array will be
- * assigned to logical board 0, the next to board 1, etc.
- */
-static int default_irqs[] __initdata =
- { PAS16_DEFAULT_BOARD_1_IRQ,
- PAS16_DEFAULT_BOARD_2_IRQ,
- PAS16_DEFAULT_BOARD_3_IRQ,
- PAS16_DEFAULT_BOARD_4_IRQ
- };
-
-static struct override {
- unsigned short io_port;
- int irq;
-} overrides
-#ifdef PAS16_OVERRIDE
- [] __initdata = PAS16_OVERRIDE;
-#else
- [4] __initdata = {{0,IRQ_AUTO}, {0,IRQ_AUTO}, {0,IRQ_AUTO},
- {0,IRQ_AUTO}};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned short io_port;
- int noauto;
-} bases[] __initdata =
- { {PAS16_DEFAULT_BASE_1, 0},
- {PAS16_DEFAULT_BASE_2, 0},
- {PAS16_DEFAULT_BASE_3, 0},
- {PAS16_DEFAULT_BASE_4, 0}
- };
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static const unsigned short pas16_offset[ 8 ] =
- {
- 0x1c00, /* OUTPUT_DATA_REG */
- 0x1c01, /* INITIATOR_COMMAND_REG */
- 0x1c02, /* MODE_REG */
- 0x1c03, /* TARGET_COMMAND_REG */
- 0x3c00, /* STATUS_REG ro, SELECT_ENABLE_REG wo */
- 0x3c01, /* BUS_AND_STATUS_REG ro, START_DMA_SEND_REG wo */
- 0x3c02, /* INPUT_DATA_REGISTER ro, (N/A on PAS16 ?)
- * START_DMA_TARGET_RECEIVE_REG wo
- */
- 0x3c03, /* RESET_PARITY_INTERRUPT_REG ro,
- * START_DMA_INITIATOR_RECEIVE_REG wo
- */
- };
-
-
-/*
- * Function : enable_board( int board_num, unsigned short port )
- *
- * Purpose : set address in new model board
- *
- * Inputs : board_num - logical board number 0-3, port - base address
- *
- */
-
-static void __init
- enable_board( int board_num, unsigned short port )
-{
- outb( 0xbc + board_num, MASTER_ADDRESS_PTR );
- outb( port >> 2, MASTER_ADDRESS_PTR );
-}
-
-
-
-/*
- * Function : init_board( unsigned short port, int irq )
- *
- * Purpose : Set the board up to handle the SCSI interface
- *
- * Inputs : port - base address of the board,
- * irq - irq to assign to the SCSI port
- * force_irq - set it even if it conflicts with sound driver
- *
- */
-
-static void __init
- init_board( unsigned short io_port, int irq, int force_irq )
-{
- unsigned int tmp;
- unsigned int pas_irq_code;
-
- /* Initialize the SCSI part of the board */
-
- outb( 0x30, io_port + P_TIMEOUT_COUNTER_REG ); /* Timeout counter */
- outb( 0x01, io_port + P_TIMEOUT_STATUS_REG_OFFSET ); /* Reset TC */
- outb( 0x01, io_port + WAIT_STATE ); /* 1 Wait state */
-
- inb(io_port + pas16_offset[RESET_PARITY_INTERRUPT_REG]);
-
- /* Set the SCSI interrupt pointer without mucking up the sound
- * interrupt pointer in the same byte.
- */
- pas_irq_code = ( irq < 16 ) ? scsi_irq_translate[irq] : 0;
- tmp = inb( io_port + IO_CONFIG_3 );
-
- if( (( tmp & 0x0f ) == pas_irq_code) && pas_irq_code > 0
- && !force_irq )
- {
- printk( "pas16: WARNING: Can't use same irq as sound "
- "driver -- interrupts disabled\n" );
- /* Set up the drive parameters, disable 5380 interrupts */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- }
- else
- {
- tmp = ( tmp & 0x0f ) | ( pas_irq_code << 4 );
- outb( tmp, io_port + IO_CONFIG_3 );
-
- /* Set up the drive parameters and enable 5380 interrupts */
- outb( 0x6d, io_port + SYS_CONFIG_4 );
- }
-}
-
-
-/*
- * Function : pas16_hw_detect( unsigned short board_num )
- *
- * Purpose : determine if a pas16 board is present
- *
- * Inputs : board_num - logical board number ( 0 - 3 )
- *
- * Returns : 0 if board not found, 1 if found.
- */
-
-static int __init
- pas16_hw_detect( unsigned short board_num )
-{
- unsigned char board_rev, tmp;
- unsigned short io_port = bases[ board_num ].io_port;
-
- /* See if we can find a PAS16 board at the address associated
- * with this logical board number.
- */
-
- /* First, attempt to take a newer model board out of reset and
- * give it a base address. This shouldn't affect older boards.
- */
- enable_board( board_num, io_port );
-
- /* Now see if it looks like a PAS16 board */
- board_rev = inb( io_port + PCB_CONFIG );
-
- if( board_rev == 0xff )
- return 0;
-
- tmp = board_rev ^ 0xe0;
-
- outb( tmp, io_port + PCB_CONFIG );
- tmp = inb( io_port + PCB_CONFIG );
- outb( board_rev, io_port + PCB_CONFIG );
-
- if( board_rev != tmp ) /* Not a PAS-16 */
- return 0;
-
- if( ( inb( io_port + OPERATION_MODE_1 ) & 0x03 ) != 0x03 )
- return 0; /* return if no SCSI interface found */
-
- /* Mediavision has some new model boards that return ID bits
- * that indicate a SCSI interface, but they're not (LMS). We'll
- * put in an additional test to try to weed them out.
- */
-
- outb(0x01, io_port + WAIT_STATE); /* 1 Wait state */
- outb(0x20, io_port + pas16_offset[MODE_REG]); /* Is it really SCSI? */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x20) /* Write to a reg. */
- return 0; /* and try to read */
- outb(0x00, io_port + pas16_offset[MODE_REG]); /* it back. */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x00)
- return 0;
-
- return 1;
-}
-
-
-#ifndef MODULE
-/*
- * Function : pas16_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init pas16_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("pas16_setup : usage pas16=io_port,irq\n");
- else
- if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].io_port = (unsigned short) ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].io_port == (unsigned short) ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("pas16=", pas16_setup);
-#endif
-
-/*
- * Function : int pas16_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes PAS16 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
- */
-
-static int __init pas16_detect(struct scsi_host_template *tpnt)
-{
- static int current_override;
- static unsigned short current_base;
- struct Scsi_Host *instance;
- unsigned short io_port;
- int count;
-
- if (pas16_addr != 0) {
- overrides[0].io_port = pas16_addr;
- /*
- * This is how we avoid seeing more than
- * one host adapter at the same I/O port.
- * Cribbed shamelessly from pas16_setup().
- */
- for (count = 0; count < NO_BASES; ++count)
- if (bases[count].io_port == pas16_addr) {
- bases[count].noauto = 1;
- break;
- }
- }
- if (pas16_irq != 0)
- overrides[0].irq = pas16_irq;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- io_port = 0;
-
- if (overrides[current_override].io_port)
- {
- io_port = overrides[current_override].io_port;
- enable_board( current_override, io_port );
- init_board( io_port, overrides[current_override].irq, 1 );
- }
- else
- for (; !io_port && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "pas16: probing io_port 0x%04x\n",
- (unsigned int)bases[current_base].io_port);
- if ( !bases[current_base].noauto &&
- pas16_hw_detect( current_base ) ){
- io_port = bases[current_base].io_port;
- init_board( io_port, default_irqs[ current_base ], 0 );
- dprintk(NDEBUG_INIT, "pas16: detected board\n");
- }
- }
-
- dprintk(NDEBUG_INIT, "pas16: io_port = 0x%04x\n",
- (unsigned int)io_port);
-
- if (!io_port)
- break;
-
- instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
- if(instance == NULL)
- goto out;
-
- instance->io_port = io_port;
-
- if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, PAS16_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, pas16_intr, 0,
- "pas16", instance)) {
- printk("scsi%d : IRQ%d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- /* Disable 5380 interrupts, leave drive params the same */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- outb( (inb(io_port + IO_CONFIG_3) & 0x0f), io_port + IO_CONFIG_3 );
- }
-
- dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out:
- return count;
-}
-
-/*
- * Function : int pas16_biosparam(Disk *disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
- */
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
- */
-
-static int pas16_biosparam(struct scsi_device *sdev, struct block_device *dev,
- sector_t capacity, int *ip)
-{
- int size = capacity;
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = size >> 11; /* I think I have it as /(32*64) */
- if( ip[2] > 1024 ) { /* yes, >, not >= */
- ip[0]=255;
- ip[1]=63;
- ip[2]=size/(63*255);
- if( ip[2] > 1023 ) /* yes >1023... */
- ip[2] = 1023;
- }
-
- return 0;
-}
-
-/*
- * Function : int pas16_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int pas16_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- register unsigned char *d = dst;
- register unsigned short reg = (unsigned short) (instance->io_port +
- P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !(inb(instance->io_port + P_STATUS_REG_OFFSET) & P_ST_RDY) )
- ++ii;
-
- insb( reg, d, i );
-
- if ( inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pread()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-/*
- * Function : int pas16_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int pas16_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- register unsigned char *s = src;
- register unsigned short reg = (instance->io_port + P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !((inb(instance->io_port + P_STATUS_REG_OFFSET)) & P_ST_RDY) )
- ++ii;
-
- outsb( reg, s, i );
-
- if (inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pwrite()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-#include "NCR5380.c"
-
-static int pas16_release(struct Scsi_Host *shost)
-{
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .name = "Pro Audio Spectrum-16 SCSI",
- .detect = pas16_detect,
- .release = pas16_release,
- .proc_name = "pas16",
- .info = pas16_info,
- .queuecommand = pas16_queue_command,
- .eh_abort_handler = pas16_abort,
- .eh_bus_reset_handler = pas16_bus_reset,
- .bios_param = pas16_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
-
-#ifdef MODULE
-module_param(pas16_addr, ushort, 0);
-module_param(pas16_irq, int, 0);
-#endif
-MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/pas16.h b/drivers/scsi/pas16.h
deleted file mode 100644
index 9fe7f33..0000000
--- a/drivers/scsi/pas16.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-
-#ifndef PAS16_H
-#define PAS16_H
-
-#define PAS16_DEFAULT_BASE_1 0x388
-#define PAS16_DEFAULT_BASE_2 0x384
-#define PAS16_DEFAULT_BASE_3 0x38c
-#define PAS16_DEFAULT_BASE_4 0x288
-
-#define PAS16_DEFAULT_BOARD_1_IRQ 10
-#define PAS16_DEFAULT_BOARD_2_IRQ 12
-#define PAS16_DEFAULT_BOARD_3_IRQ 14
-#define PAS16_DEFAULT_BOARD_4_IRQ 15
-
-
-/*
- * The Pro Audio Spectrum boards are I/O mapped. They use a Zilog 5380
- * SCSI controller, which is the equivalent of NCR's 5380. "Pseudo-DMA"
- * architecture is used, where a PAL drives the DMA signals on the 5380
- * allowing fast, blind transfers with proper handshaking.
- */
-
-
-/* The Time-out Counter register is used to safe-guard against a stuck
- * bus (in the case of RDY driven handshake) or a stuck byte (if 16-Bit
- * DMA conversion is used). The counter uses a 28.224MHz clock
- * divided by 14 as its clock source. In the case of a stuck byte in
- * the holding register, an interrupt is generated (and mixed with the
- * one with the drive) using the CD-ROM interrupt pointer.
- */
-
-#define P_TIMEOUT_COUNTER_REG 0x4000
-#define P_TC_DISABLE 0x80 /* Set to 0 to enable timeout int. */
- /* Bits D6-D0 contain timeout count */
-
-
-#define P_TIMEOUT_STATUS_REG_OFFSET 0x4001
-#define P_TS_TIM 0x80 /* check timeout status */
- /* Bits D6-D4 N/U */
-#define P_TS_ARM_DRQ_INT 0x08 /* Arm DRQ Int. When set high,
- * the next rising edge will
- * cause a CD-ROM interrupt.
- * When set low, the interrupt
- * will be cleared. There is
- * no status available for
- * this interrupt.
- */
-#define P_TS_ENABLE_TO_ERR_INTERRUPT /* Enable timeout error int. */
-#define P_TS_ENABLE_WAIT /* Enable Wait */
-
-#define P_TS_CT 0x01 /* clear timeout. Note: writing
- * to this register clears the
- * timeout error int. or status
- */
-
-
-/*
- * The data register reads/writes to/from the 5380 in pseudo-DMA mode
- */
-
-#define P_DATA_REG_OFFSET 0x5c00 /* rw */
-
-#define P_STATUS_REG_OFFSET 0x5c01 /* ro */
-#define P_ST_RDY 0x80 /* 5380 DDRQ Status */
-
-#define P_IRQ_STATUS 0x5c03
-#define P_IS_IRQ 0x80 /* DIRQ status */
-
-#define PCB_CONFIG 0x803
-#define MASTER_ADDRESS_PTR 0x9a01 /* Fixed position - no relo */
-#define SYS_CONFIG_4 0x8003
-#define WAIT_STATE 0xbc00
-#define OPERATION_MODE_1 0xec03
-#define IO_CONFIG_3 0xf002
-
-#define NCR5380_implementation_fields /* none */
-
-#define PAS16_io_port(reg) (instance->io_port + pas16_offset[(reg)])
-
-#define NCR5380_read(reg) ( inb(PAS16_io_port(reg)) )
-#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
-#define NCR5380_dma_recv_setup pas16_pread
-#define NCR5380_dma_send_setup pas16_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr pas16_intr
-#define NCR5380_queue_command pas16_queue_command
-#define NCR5380_abort pas16_abort
-#define NCR5380_bus_reset pas16_bus_reset
-#define NCR5380_info pas16_info
-
-/* 15 14 12 10 7 5 3
- 1101 0100 1010 1000 */
-
-#define PAS16_IRQS 0xd4a8
-
-#endif /* PAS16_H */
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 6/7] t128: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (4 preceding siblings ...)
2016-09-19 15:50 ` [PATCH 5/7] pas16: " Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 7/7] dtc: " Christoph Hellwig
` (2 subsequent siblings)
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/scsi-parameters.txt | 3 -
MAINTAINERS | 1 -
drivers/scsi/Kconfig | 17 --
drivers/scsi/Makefile | 1 -
drivers/scsi/t128.c | 407 ---------------------------------
drivers/scsi/t128.h | 97 --------
6 files changed, 526 deletions(-)
delete mode 100644 drivers/scsi/t128.c
delete mode 100644 drivers/scsi/t128.h
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index fe77b5a..00a03c0 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -113,9 +113,6 @@ parameters may be changed at runtime by the command
sym53c416= [HW,SCSI]
See header of drivers/scsi/sym53c416.c.
- t128= [HW,SCSI]
- See header of drivers/scsi/t128.c.
-
tmscsim= [HW,SCSI]
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
diff --git a/MAINTAINERS b/MAINTAINERS
index 2a0c056..e4ec1b8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8054,7 +8054,6 @@ F: drivers/scsi/g_NCR5380_mmio.c
F: drivers/scsi/mac_scsi.*
F: drivers/scsi/sun3_scsi.*
F: drivers/scsi/sun3_scsi_vme.c
-F: drivers/scsi/t128.*
NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index ee83d95..a38e37c 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1345,23 +1345,6 @@ config SCSI_AM53C974
To compile this driver as a module, choose M here: the
module will be called am53c974.
-config SCSI_T128
- tristate "Trantor T128/T128F/T228 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- select CHECK_SIGNATURE
- ---help---
- This is support for a SCSI host adapter. It is explained in section
- 3.11 of the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>. If it doesn't work out
- of the box, you may have to change some settings in
- <file:drivers/scsi/t128.h>. Note that Trantor was purchased by
- Adaptec, and some former Trantor products are being sold under the
- Adaptec name.
-
- To compile this driver as a module, choose M here: the
- module will be called t128.
-
config SCSI_NSP32
tristate "Workbit NinjaSCSI-32Bi/UDE support"
depends on PCI && SCSI && !64BIT
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index be3108c..392609a 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -87,7 +87,6 @@ obj-$(CONFIG_SCSI_QLA_ISCSI) += libiscsi.o qla4xxx/
obj-$(CONFIG_SCSI_LPFC) += lpfc/
obj-$(CONFIG_SCSI_BFA_FC) += bfa/
obj-$(CONFIG_SCSI_CHELSIO_FCOE) += csiostor/
-obj-$(CONFIG_SCSI_T128) += t128.o
obj-$(CONFIG_SCSI_DMX3191D) += dmx3191d.o
obj-$(CONFIG_SCSI_HPSA) += hpsa.o
obj-$(CONFIG_SCSI_SMARTPQI) += smartpqi/
diff --git a/drivers/scsi/t128.c b/drivers/scsi/t128.c
deleted file mode 100644
index 8a8608a..0000000
--- a/drivers/scsi/t128.c
+++ /dev/null
@@ -1,407 +0,0 @@
-/*
- * Trantor T128/T128F/T228 driver
- * Note : architecturally, the T100 and T130 are different and won't
- * work
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- *
- * For more information, please consult
- *
- * Trantor Systems, Ltd.
- * T128/T128F/T228 SCSI Host Adapter
- * Hardware Specifications
- *
- * Trantor Systems, Ltd.
- * 5415 Randall Place
- * Fremont, CA 94538
- * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - since the board is memory mapped,
- * a BIOS signature is scanned for to locate the registers.
- * An interrupt is triggered to autoprobe for the interrupt
- * line.
- *
- * 2. With command line overrides - t128=address,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 3. With the T128_OVERRIDE compile time define. This is
- * specified as an array of address, irq tuples. Ie, for
- * one board at the default 0xcc000 address, IRQ5, I could say
- * -DT128_OVERRIDE={{0xcc000, 5}}
- *
- * Note that if the override methods are used, place holders must
- * be specified for other boards in the system.
- *
- * T128/T128F jumper/dipswitch settings (note : on my sample, the switches
- * were epoxy'd shut, meaning I couldn't change the 0xcc000 base address) :
- *
- * T128 Sw7 Sw8 Sw6 = 0ws Sw5 = boot
- * T128F Sw6 Sw7 Sw5 = 0ws Sw4 = boot Sw8 = floppy disable
- * cc000 off off
- * c8000 off on
- * dc000 on off
- * d8000 on on
- *
- *
- * Interrupts
- * There is a 12 pin jumper block, jp1, numbered as follows :
- * T128 (JP1) T128F (J5)
- * 2 4 6 8 10 12 11 9 7 5 3 1
- * 1 3 5 7 9 11 12 10 8 6 4 2
- *
- * 3 2-4
- * 5 1-3
- * 7 3-5
- * T128F only
- * 10 8-10
- * 12 7-9
- * 14 10-12
- * 15 9-11
- */
-
-#include <linux/io.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <scsi/scsi_host.h>
-#include "t128.h"
-#include "NCR5380.h"
-
-static struct override {
- unsigned long address;
- int irq;
-} overrides
-#ifdef T128_OVERRIDE
- [] __initdata = T128_OVERRIDE;
-#else
- [4] __initdata = {{0, IRQ_AUTO}, {0, IRQ_AUTO},
- {0 ,IRQ_AUTO}, {0, IRQ_AUTO}};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned int address;
- int noauto;
-} bases[] __initdata = {
- { 0xcc000, 0}, { 0xc8000, 0}, { 0xdc000, 0}, { 0xd8000, 0}
-};
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static struct signature {
- const char *string;
- int offset;
-} signatures[] __initdata = {
-{"TSROM: SCSI BIOS, Version 1.12", 0x36},
-};
-
-#define NO_SIGNATURES ARRAY_SIZE(signatures)
-
-#ifndef MODULE
-/*
- * Function : t128_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init t128_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("t128_setup : usage t128=address,irq\n");
- else
- if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].address = ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].address == ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("t128=", t128_setup);
-#endif
-
-/*
- * Function : int t128_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes T128,T128F, or T228 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
- */
-
-static int __init t128_detect(struct scsi_host_template *tpnt)
-{
- static int current_override, current_base;
- struct Scsi_Host *instance;
- unsigned long base;
- void __iomem *p;
- int sig, count;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- base = 0;
- p = NULL;
-
- if (overrides[current_override].address) {
- base = overrides[current_override].address;
- p = ioremap(bases[current_base].address, 0x2000);
- if (!p)
- base = 0;
- } else
- for (; !base && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "t128: probing address 0x%08x\n",
- bases[current_base].address);
- if (bases[current_base].noauto)
- continue;
- p = ioremap(bases[current_base].address, 0x2000);
- if (!p)
- continue;
- for (sig = 0; sig < NO_SIGNATURES; ++sig)
- if (check_signature(p + signatures[sig].offset,
- signatures[sig].string,
- strlen(signatures[sig].string))) {
- base = bases[current_base].address;
- dprintk(NDEBUG_INIT, "t128: detected board\n");
- goto found;
- }
- iounmap(p);
- }
-
- dprintk(NDEBUG_INIT, "t128: base = 0x%08x\n", (unsigned int)base);
-
- if (!base)
- break;
-
-found:
- instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
- if(instance == NULL)
- goto out_unmap;
-
- instance->base = base;
- ((struct NCR5380_hostdata *)instance->hostdata)->base = p;
-
- if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, T128_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, t128_intr, 0, "t128",
- instance)) {
- printk("scsi%d : IRQ%d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- }
-
- dprintk(NDEBUG_INIT, "scsi%d: irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out_unmap:
- iounmap(p);
- return count;
-}
-
-static int t128_release(struct Scsi_Host *shost)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(shost);
-
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- iounmap(hostdata->base);
- return 0;
-}
-
-/*
- * Function : int t128_biosparam(Disk * disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
- */
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
- */
-
-static int t128_biosparam(struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int *ip)
-{
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = capacity >> 11;
- return 0;
-}
-
-/*
- * Function : int t128_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, transfers len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int t128_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- void __iomem *reg, *base = hostdata->base;
- unsigned char *d = dst;
- register int i = len;
-
- reg = base + T_DATA_REG_OFFSET;
-
-#if 0
- for (; i; --i) {
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
-#else
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
- for (; i; --i) {
-#endif
- *d++ = readb(reg);
- }
-
- if (readb(base + T_STATUS_REG_OFFSET) & T_ST_TIM) {
- unsigned char tmp;
- void __iomem *foo = base + T_CONTROL_REG_OFFSET;
- tmp = readb(foo);
- writeb(tmp | T_CR_CT, foo);
- writeb(tmp, foo);
- printk("scsi%d : watchdog timer fired in NCR5380_pread()\n",
- instance->host_no);
- return -1;
- } else
- return 0;
-}
-
-/*
- * Function : int t128_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
- */
-
-static inline int t128_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
- void __iomem *reg, *base = hostdata->base;
- unsigned char *s = src;
- register int i = len;
-
- reg = base + T_DATA_REG_OFFSET;
-
-#if 0
- for (; i; --i) {
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
-#else
- while (!(readb(base+T_STATUS_REG_OFFSET) & T_ST_RDY)) barrier();
- for (; i; --i) {
-#endif
- writeb(*s++, reg);
- }
-
- if (readb(base + T_STATUS_REG_OFFSET) & T_ST_TIM) {
- unsigned char tmp;
- void __iomem *foo = base + T_CONTROL_REG_OFFSET;
- tmp = readb(foo);
- writeb(tmp | T_CR_CT, foo);
- writeb(tmp, foo);
- printk("scsi%d : watchdog timer fired in NCR5380_pwrite()\n",
- instance->host_no);
- return -1;
- } else
- return 0;
-}
-
-MODULE_LICENSE("GPL");
-
-#include "NCR5380.c"
-
-static struct scsi_host_template driver_template = {
- .name = "Trantor T128/T128F/T228",
- .detect = t128_detect,
- .release = t128_release,
- .proc_name = "t128",
- .info = t128_info,
- .queuecommand = t128_queue_command,
- .eh_abort_handler = t128_abort,
- .eh_bus_reset_handler = t128_bus_reset,
- .bios_param = t128_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
diff --git a/drivers/scsi/t128.h b/drivers/scsi/t128.h
deleted file mode 100644
index c95bcd8..0000000
--- a/drivers/scsi/t128.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Trantor T128/T128F/T228 defines
- * Note : architecturally, the T100 and T128 are different and won't work
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- *
- * For more information, please consult
- *
- * Trantor Systems, Ltd.
- * T128/T128F/T228 SCSI Host Adapter
- * Hardware Specifications
- *
- * Trantor Systems, Ltd.
- * 5415 Randall Place
- * Fremont, CA 94538
- * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
- */
-
-#ifndef T128_H
-#define T128_H
-
-/*
- * The trantor boards are memory mapped. They use an NCR5380 or
- * equivalent (my sample board had part second sourced from ZILOG).
- * NCR's recommended "Pseudo-DMA" architecture is used, where
- * a PAL drives the DMA signals on the 5380 allowing fast, blind
- * transfers with proper handshaking.
- */
-
-/*
- * Note : a boot switch is provided for the purpose of informing the
- * firmware to boot or not boot from attached SCSI devices. So, I imagine
- * there are fewer people who've yanked the ROM like they do on the Seagate
- * to make bootup faster, and I'll probably use this for autodetection.
- */
-#define T_ROM_OFFSET 0
-
-/*
- * Note : my sample board *WAS NOT* populated with the SRAM, so this
- * can't be used for autodetection without a ROM present.
- */
-#define T_RAM_OFFSET 0x1800
-
-/*
- * All of the registers are allocated 32 bytes of address space, except
- * for the data register (read/write to/from the 5380 in pseudo-DMA mode)
- */
-#define T_CONTROL_REG_OFFSET 0x1c00 /* rw */
-#define T_CR_INT 0x10 /* Enable interrupts */
-#define T_CR_CT 0x02 /* Reset watchdog timer */
-
-#define T_STATUS_REG_OFFSET 0x1c20 /* ro */
-#define T_ST_BOOT 0x80 /* Boot switch */
-#define T_ST_S3 0x40 /* User settable switches, */
-#define T_ST_S2 0x20 /* read 0 when switch is on, 1 off */
-#define T_ST_S1 0x10
-#define T_ST_PS2 0x08 /* Set for Microchannel 228 */
-#define T_ST_RDY 0x04 /* 5380 DRQ */
-#define T_ST_TIM 0x02 /* indicates 40us watchdog timer fired */
-#define T_ST_ZERO 0x01 /* Always zero */
-
-#define T_5380_OFFSET 0x1d00 /* 8 registers here, see NCR5380.h */
-
-#define T_DATA_REG_OFFSET 0x1e00 /* rw 512 bytes long */
-
-#define NCR5380_implementation_fields \
- void __iomem *base
-
-#define T128_address(reg) \
- (((struct NCR5380_hostdata *)shost_priv(instance))->base + T_5380_OFFSET + ((reg) * 0x20))
-
-#define NCR5380_read(reg) readb(T128_address(reg))
-#define NCR5380_write(reg, value) writeb((value),(T128_address(reg)))
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
-#define NCR5380_dma_recv_setup t128_pread
-#define NCR5380_dma_send_setup t128_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr t128_intr
-#define NCR5380_queue_command t128_queue_command
-#define NCR5380_abort t128_abort
-#define NCR5380_bus_reset t128_bus_reset
-#define NCR5380_info t128_info
-
-#define NCR5380_io_delay(x) udelay(x)
-
-/* 15 14 12 10 7 5 3
- 1101 0100 1010 1000 */
-
-#define T128_IRQS 0xc4a8
-
-#endif /* T128_H */
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 7/7] dtc: remove from tree
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (5 preceding siblings ...)
2016-09-19 15:50 ` [PATCH 6/7] t128: " Christoph Hellwig
@ 2016-09-19 15:50 ` Christoph Hellwig
2016-09-20 9:53 ` remove old and unmaintained ISA driver Hannes Reinecke
2016-09-27 0:52 ` Martin K. Petersen
8 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-19 15:50 UTC (permalink / raw)
To: linux-scsi; +Cc: schmitzmic, linux, fthain
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Documentation/scsi/dtc3x80.txt | 43 ----
Documentation/scsi/scsi-parameters.txt | 3 -
MAINTAINERS | 2 -
drivers/scsi/Kconfig | 14 --
drivers/scsi/Makefile | 1 -
drivers/scsi/dtc.c | 447 ---------------------------------
drivers/scsi/dtc.h | 42 ----
7 files changed, 552 deletions(-)
delete mode 100644 Documentation/scsi/dtc3x80.txt
delete mode 100644 drivers/scsi/dtc.c
delete mode 100644 drivers/scsi/dtc.h
diff --git a/Documentation/scsi/dtc3x80.txt b/Documentation/scsi/dtc3x80.txt
deleted file mode 100644
index 1d7af9f..0000000
--- a/Documentation/scsi/dtc3x80.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-README file for the Linux DTC3180/3280 scsi driver.
-by Ray Van Tassle (rayvt@comm.mot.com) March 1996
-Based on the generic & core NCR5380 code by Drew Eckhard
-
-SCSI device driver for the DTC 3180/3280.
-Data Technology Corp---a division of Qume.
-
-The 3280 has a standard floppy interface.
-
-The 3180 does not. Otherwise, they are identical.
-
-The DTC3x80 does not support DMA but it does have Pseudo-DMA which is
-supported by the driver.
-
-Its DTC406 scsi chip is supposedly compatible with the NCR 53C400.
-It is memory mapped, uses an IRQ, but no dma or io-port. There is
-internal DMA, between SCSI bus and an on-chip 128-byte buffer. Double
-buffering is done automagically by the chip. Data is transferred
-between the on-chip buffer and CPU/RAM via memory moves.
-
-The driver detects the possible memory addresses (jumper selectable):
- CC00, DC00, C800, and D800
-The possible IRQ's (jumper selectable) are:
- IRQ 10, 11, 12, 15
-Parity is supported by the chip, but not by this driver.
-Information can be obtained from /proc/scsi/dtc3c80/N.
-
-Note on interrupts:
-
-The documentation says that it can be set to interrupt whenever the
-on-chip buffer needs CPU attention. I couldn't get this to work. So
-the driver polls for data-ready in the pseudo-DMA transfer routine.
-The interrupt support routines in the NCR3280.c core modules handle
-scsi disconnect/reconnect, and this (mostly) works. However..... I
-have tested it with 4 totally different hard drives (both SCSI-1 and
-SCSI-2), and one CDROM drive. Interrupts works great for all but one
-specific hard drive. For this one, the driver will eventually hang in
-the transfer state. I have tested with: "dd bs=4k count=2k
-of=/dev/null if=/dev/sdb". It reads ok for a while, then hangs.
-After beating my head against this for a couple of weeks, getting
-nowhere, I give up. So.....This driver does NOT use interrupts, even
-if you have the card jumpered to an IRQ. Probably nobody will ever
-care.
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 00a03c0..8e66daf 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -34,9 +34,6 @@ parameters may be changed at runtime by the command
See drivers/scsi/BusLogic.c, comment before function
BusLogic_ParseDriverOptions().
- dtc3181e= [HW,SCSI]
- See Documentation/scsi/g_NCR5380.txt.
-
eata= [HW,SCSI]
fdomain= [HW,SCSI]
diff --git a/MAINTAINERS b/MAINTAINERS
index e4ec1b8..48f2b48 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8042,13 +8042,11 @@ M: Michael Schmitz <schmitzmic@gmail.com>
L: linux-scsi@vger.kernel.org
S: Maintained
F: Documentation/scsi/g_NCR5380.txt
-F: Documentation/scsi/dtc3x80.txt
F: drivers/scsi/NCR5380.*
F: drivers/scsi/arm/cumana_1.c
F: drivers/scsi/arm/oak.c
F: drivers/scsi/atari_scsi.*
F: drivers/scsi/dmx3191d.c
-F: drivers/scsi/dtc.*
F: drivers/scsi/g_NCR5380.*
F: drivers/scsi/g_NCR5380_mmio.c
F: drivers/scsi/mac_scsi.*
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a38e37c..3e2bdb9 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -637,20 +637,6 @@ config SCSI_DMX3191D
To compile this driver as a module, choose M here: the
module will be called dmx3191d.
-config SCSI_DTC3280
- tristate "DTC3180/3280 SCSI support"
- depends on ISA && SCSI
- select SCSI_SPI_ATTRS
- select CHECK_SIGNATURE
- help
- This is support for DTC 3180/3280 SCSI Host Adapters. Please read
- the SCSI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, and the file
- <file:Documentation/scsi/dtc3x80.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called dtc.
-
config SCSI_EATA
tristate "EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support"
depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 392609a..38d938d 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -90,7 +90,6 @@ obj-$(CONFIG_SCSI_CHELSIO_FCOE) += csiostor/
obj-$(CONFIG_SCSI_DMX3191D) += dmx3191d.o
obj-$(CONFIG_SCSI_HPSA) += hpsa.o
obj-$(CONFIG_SCSI_SMARTPQI) += smartpqi/
-obj-$(CONFIG_SCSI_DTC3280) += dtc.o
obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/
obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o
obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o
diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c
deleted file mode 100644
index 459863f..0000000
--- a/drivers/scsi/dtc.c
+++ /dev/null
@@ -1,447 +0,0 @@
-/*
- * DTC 3180/3280 driver, by
- * Ray Van Tassle rayvt@comm.mot.com
- *
- * taken from ...
- * Trantor T128/T128F/T228 driver by...
- *
- * Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - since the board is memory mapped,
- * a BIOS signature is scanned for to locate the registers.
- * An interrupt is triggered to autoprobe for the interrupt
- * line.
- *
- * 2. With command line overrides - dtc=address,irq may be
- * used on the LILO command line to override the defaults.
- *
-*/
-
-/*----------------------------------------------------------------*/
-/* the following will set the monitor border color (useful to find
- where something crashed or gets stuck at */
-/* 1 = blue
- 2 = green
- 3 = cyan
- 4 = red
- 5 = magenta
- 6 = yellow
- 7 = white
-*/
-#if 0
-#define rtrc(i) {inb(0x3da); outb(0x31, 0x3c0); outb((i), 0x3c0);}
-#else
-#define rtrc(i) {}
-#endif
-
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <scsi/scsi_host.h>
-
-#include "dtc.h"
-#include "NCR5380.h"
-
-/*
- * The DTC3180 & 3280 boards are memory mapped.
- *
- */
-
-/*
- */
-/* Offset from DTC_5380_OFFSET */
-#define DTC_CONTROL_REG 0x100 /* rw */
-#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */
-#define CSR_DIR_READ 0x40 /* rw direction, 1 = read 0 = write */
-
-#define CSR_RESET 0x80 /* wo Resets 53c400 */
-#define CSR_5380_REG 0x80 /* ro 5380 registers can be accessed */
-#define CSR_TRANS_DIR 0x40 /* rw Data transfer direction */
-#define CSR_SCSI_BUFF_INTR 0x20 /* rw Enable int on transfer ready */
-#define CSR_5380_INTR 0x10 /* rw Enable 5380 interrupts */
-#define CSR_SHARED_INTR 0x08 /* rw Interrupt sharing */
-#define CSR_HOST_BUF_NOT_RDY 0x04 /* ro Host buffer not ready */
-#define CSR_SCSI_BUF_RDY 0x02 /* ro SCSI buffer ready */
-#define CSR_GATED_5380_IRQ 0x01 /* ro Last block xferred */
-#define CSR_INT_BASE (CSR_SCSI_BUFF_INTR | CSR_5380_INTR)
-
-
-#define DTC_BLK_CNT 0x101 /* rw
- * # of 128-byte blocks to transfer */
-
-
-#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */
-
-#define DTC_SWITCH_REG 0x3982 /* ro - DIP switches */
-#define DTC_RESUME_XFER 0x3982 /* wo - resume data xfer
- * after disconnect/reconnect*/
-
-#define DTC_5380_OFFSET 0x3880 /* 8 registers here, see NCR5380.h */
-
-/*!!!! for dtc, it's a 128 byte buffer at 3900 !!! */
-#define DTC_DATA_BUF 0x3900 /* rw 128 bytes long */
-
-static struct override {
- unsigned int address;
- int irq;
-} overrides
-#ifdef OVERRIDE
-[] __initdata = OVERRIDE;
-#else
-[4] __initdata = {
- { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }
-};
-#endif
-
-#define NO_OVERRIDES ARRAY_SIZE(overrides)
-
-static struct base {
- unsigned long address;
- int noauto;
-} bases[] __initdata = {
- { 0xcc000, 0 },
- { 0xc8000, 0 },
- { 0xdc000, 0 },
- { 0xd8000, 0 }
-};
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static const struct signature {
- const char *string;
- int offset;
-} signatures[] = {
- {"DATA TECHNOLOGY CORPORATION BIOS", 0x25},
-};
-
-#define NO_SIGNATURES ARRAY_SIZE(signatures)
-
-#ifndef MODULE
-/*
- * Function : dtc_setup(char *str, int *ints)
- *
- * Purpose : LILO command line initialization of the overrides array,
- *
- * Inputs : str - unused, ints - array of integer parameters with ints[0]
- * equal to the number of ints.
- *
- */
-
-static int __init dtc_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("dtc_setup: usage dtc=address,irq\n");
- else if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].address = ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].address == ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("dtc=", dtc_setup);
-#endif
-
-/*
- * Function : int dtc_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes DTC 3180/3280 controllers
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
-*/
-
-static int __init dtc_detect(struct scsi_host_template * tpnt)
-{
- static int current_override, current_base;
- struct Scsi_Host *instance;
- unsigned int addr;
- void __iomem *base;
- int sig, count;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- addr = 0;
- base = NULL;
-
- if (overrides[current_override].address) {
- addr = overrides[current_override].address;
- base = ioremap(addr, 0x2000);
- if (!base)
- addr = 0;
- } else
- for (; !addr && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "dtc: probing address 0x%08x\n",
- (unsigned int)bases[current_base].address);
- if (bases[current_base].noauto)
- continue;
- base = ioremap(bases[current_base].address, 0x2000);
- if (!base)
- continue;
- for (sig = 0; sig < NO_SIGNATURES; ++sig) {
- if (check_signature(base + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) {
- addr = bases[current_base].address;
- dprintk(NDEBUG_INIT, "dtc: detected board\n");
- goto found;
- }
- }
- iounmap(base);
- }
-
- dprintk(NDEBUG_INIT, "dtc: addr = 0x%08x\n", addr);
-
- if (!addr)
- break;
-
-found:
- instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
- if (instance == NULL)
- goto out_unmap;
-
- instance->base = addr;
- ((struct NCR5380_hostdata *)(instance)->hostdata)->base = base;
-
- if (NCR5380_init(instance, FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); /* Enable int's */
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, DTC_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- /* With interrupts enabled, it will sometimes hang when doing heavy
- * reads. So better not enable them until I finger it out. */
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, dtc_intr, 0,
- "dtc", instance)) {
- printk(KERN_ERR "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- printk(KERN_WARNING "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
- printk(KERN_WARNING "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
- }
-
- dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out_unmap:
- iounmap(base);
- return count;
-}
-
-/*
- * Function : int dtc_biosparam(Disk * disk, struct block_device *dev, int *ip)
- *
- * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
- * the specified device / size.
- *
- * Inputs : size = size of device in sectors (512 bytes), dev = block device
- * major / minor, ip[] = {heads, sectors, cylinders}
- *
- * Returns : always 0 (success), initializes ip
- *
-*/
-
-/*
- * XXX Most SCSI boards use this mapping, I could be incorrect. Some one
- * using hard disks on a trantor should verify that this mapping corresponds
- * to that used by the BIOS / ASPI driver by running the linux fdisk program
- * and matching the H_C_S coordinates to what DOS uses.
-*/
-
-static int dtc_biosparam(struct scsi_device *sdev, struct block_device *dev,
- sector_t capacity, int *ip)
-{
- int size = capacity;
-
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = size >> 11;
- return 0;
-}
-
-
-/****************************************************************
- * Function : int NCR5380_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, reads len bytes to
- * dst
- *
- * Inputs : dst = destination, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
-*/
-
-static inline int dtc_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- unsigned char *d = dst;
- int i; /* For counting time spent in the poll-loop */
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- i = 0;
- if (instance->irq == NO_IRQ)
- NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ);
- else
- NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ | CSR_INT_BASE);
- NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */
- rtrc(1);
- while (len > 0) {
- rtrc(2);
- while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY)
- ++i;
- rtrc(3);
- memcpy_fromio(d, hostdata->base + DTC_DATA_BUF, 128);
- d += 128;
- len -= 128;
- rtrc(7);
- /*** with int's on, it sometimes hangs after here.
- * Looks like something makes HBNR go away. */
- }
- rtrc(4);
- while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS))
- ++i;
- rtrc(0);
- return (0);
-}
-
-/****************************************************************
- * Function : int NCR5380_pwrite (struct Scsi_Host *instance,
- * unsigned char *src, int len)
- *
- * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from
- * src
- *
- * Inputs : src = source, len = length in bytes
- *
- * Returns : 0 on success, non zero on a failure such as a watchdog
- * timeout.
-*/
-
-static inline int dtc_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- int i;
- struct NCR5380_hostdata *hostdata = shost_priv(instance);
-
- if (instance->irq == NO_IRQ)
- NCR5380_write(DTC_CONTROL_REG, 0);
- else
- NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR);
- NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */
- for (i = 0; len > 0; ++i) {
- rtrc(5);
- /* Poll until the host buffer can accept data. */
- while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY)
- ++i;
- rtrc(3);
- memcpy_toio(hostdata->base + DTC_DATA_BUF, src, 128);
- src += 128;
- len -= 128;
- }
- rtrc(4);
- while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS))
- ++i;
- rtrc(6);
- /* Wait until the last byte has been sent to the disk */
- while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
- ++i;
- rtrc(7);
- /* Check for parity error here. fixme. */
- rtrc(0);
- return (0);
-}
-
-static int dtc_dma_xfer_len(struct scsi_cmnd *cmd)
-{
- int transfersize = cmd->transfersize;
-
- /* Limit transfers to 32K, for xx400 & xx406
- * pseudoDMA that transfers in 128 bytes blocks.
- */
- if (transfersize > 32 * 1024 && cmd->SCp.this_residual &&
- !(cmd->SCp.this_residual % transfersize))
- transfersize = 32 * 1024;
-
- return transfersize;
-}
-
-MODULE_LICENSE("GPL");
-
-#include "NCR5380.c"
-
-static int dtc_release(struct Scsi_Host *shost)
-{
- struct NCR5380_hostdata *hostdata = shost_priv(shost);
-
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- iounmap(hostdata->base);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .name = "DTC 3180/3280",
- .detect = dtc_detect,
- .release = dtc_release,
- .proc_name = "dtc3x80",
- .info = dtc_info,
- .queuecommand = dtc_queue_command,
- .eh_abort_handler = dtc_abort,
- .eh_bus_reset_handler = dtc_bus_reset,
- .bios_param = dtc_biosparam,
- .can_queue = 32,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 2,
- .use_clustering = DISABLE_CLUSTERING,
- .cmd_size = NCR5380_CMD_SIZE,
- .max_sectors = 128,
-};
-#include "scsi_module.c"
diff --git a/drivers/scsi/dtc.h b/drivers/scsi/dtc.h
deleted file mode 100644
index fcb0a8e..0000000
--- a/drivers/scsi/dtc.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * DTC controller, taken from T128 driver by...
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 440-4894
- */
-
-#ifndef DTC3280_H
-#define DTC3280_H
-
-#define NCR5380_implementation_fields \
- void __iomem *base
-
-#define DTC_address(reg) \
- (((struct NCR5380_hostdata *)shost_priv(instance))->base + DTC_5380_OFFSET + reg)
-
-#define NCR5380_read(reg) (readb(DTC_address(reg)))
-#define NCR5380_write(reg, value) (writeb(value, DTC_address(reg)))
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) \
- dtc_dma_xfer_len(cmd)
-#define NCR5380_dma_recv_setup dtc_pread
-#define NCR5380_dma_send_setup dtc_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr dtc_intr
-#define NCR5380_queue_command dtc_queue_command
-#define NCR5380_abort dtc_abort
-#define NCR5380_bus_reset dtc_bus_reset
-#define NCR5380_info dtc_info
-
-#define NCR5380_io_delay(x) udelay(x)
-
-/* 15 12 11 10
- 1001 1100 0000 0000 */
-
-#define DTC_IRQS 0x9c00
-
-
-#endif /* DTC3280_H */
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH 5/7] pas16: remove from tree
2016-09-19 15:50 ` [PATCH 5/7] pas16: " Christoph Hellwig
@ 2016-09-20 0:12 ` Finn Thain
2016-09-20 16:09 ` Christoph Hellwig
0 siblings, 1 reply; 12+ messages in thread
From: Finn Thain @ 2016-09-20 0:12 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: linux-scsi, schmitzmic, linux
On Mon, 19 Sep 2016, Christoph Hellwig wrote:
> The driver has not seen any maintainer activity or other work that
> wasn't tree wide conversion or clenaups in the entire history of the git
> tree.
That could indicate mature code, absent maintainer etc. It doesn't justify
or explain code removal.
In this case, no-one seems to have the hardware needed to test the code,
and no-one appears willing to do the conversion to the scsi_host_alloc()
API. I think this justification should appear in the commit message.
On that basis, I would remove these drivers along with scsi_register()
itself. Is there some reason to remove them earlier? It messes up my patch
queue.
Either way, you may add my
Acked-by: Finn Thain <fthain@telegraphics.com.au>
for the pas16, t128 and dtc patches if you like.
--
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: remove old and unmaintained ISA driver
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (6 preceding siblings ...)
2016-09-19 15:50 ` [PATCH 7/7] dtc: " Christoph Hellwig
@ 2016-09-20 9:53 ` Hannes Reinecke
2016-09-27 0:52 ` Martin K. Petersen
8 siblings, 0 replies; 12+ messages in thread
From: Hannes Reinecke @ 2016-09-20 9:53 UTC (permalink / raw)
To: Christoph Hellwig, linux-scsi; +Cc: schmitzmic, linux, fthain
On 09/19/2016 05:50 PM, Christoph Hellwig wrote:
> Per discussion in last year and last week there are a few old ISA SCSI
> drivers that haven't seen any work since the dawn of git, and most likely
> no users. Drop them to speed up killing off the scsi_module.c
> infrastruture.
>
I'm all for it.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 5/7] pas16: remove from tree
2016-09-20 0:12 ` Finn Thain
@ 2016-09-20 16:09 ` Christoph Hellwig
0 siblings, 0 replies; 12+ messages in thread
From: Christoph Hellwig @ 2016-09-20 16:09 UTC (permalink / raw)
To: Finn Thain; +Cc: Christoph Hellwig, linux-scsi, schmitzmic, linux
On Tue, Sep 20, 2016 at 10:12:28AM +1000, Finn Thain wrote:
> On that basis, I would remove these drivers along with scsi_register()
> itself. Is there some reason to remove them earlier? It messes up my patch
> queue.
Mostly to make the later patches less painless by moving the easy removals
out of the way first. This also means we have time ahead to resurrect
them properly for the unlikely case that someone cares.
That beeing said I certainly don't want to mess up your patch queue
with this. How about you pick up the pas16, t128 and dtc patches and
add them to the end of your queue?
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: remove old and unmaintained ISA driver
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
` (7 preceding siblings ...)
2016-09-20 9:53 ` remove old and unmaintained ISA driver Hannes Reinecke
@ 2016-09-27 0:52 ` Martin K. Petersen
8 siblings, 0 replies; 12+ messages in thread
From: Martin K. Petersen @ 2016-09-27 0:52 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: linux-scsi, schmitzmic, linux, fthain
>>>>> "Christoph" == Christoph Hellwig <hch@lst.de> writes:
Christoph> Per discussion in last year and last week there are a few old
Christoph> ISA SCSI drivers that haven't seen any work since the dawn of
Christoph> git, and most likely no users. Drop them to speed up killing
Christoph> off the scsi_module.c infrastruture.
Applied to 4.9/scsi-queue.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2016-09-27 0:52 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-09-19 15:50 remove old and unmaintained ISA driver Christoph Hellwig
2016-09-19 15:50 ` [PATCH 1/7] wd7000: remove from tree Christoph Hellwig
2016-09-19 15:50 ` [PATCH 2/7] in2000: " Christoph Hellwig
2016-09-19 15:50 ` [PATCH 3/7] ultrastor: " Christoph Hellwig
2016-09-19 15:50 ` [PATCH 4/7] u14-34f: " Christoph Hellwig
2016-09-19 15:50 ` [PATCH 5/7] pas16: " Christoph Hellwig
2016-09-20 0:12 ` Finn Thain
2016-09-20 16:09 ` Christoph Hellwig
2016-09-19 15:50 ` [PATCH 6/7] t128: " Christoph Hellwig
2016-09-19 15:50 ` [PATCH 7/7] dtc: " Christoph Hellwig
2016-09-20 9:53 ` remove old and unmaintained ISA driver Hannes Reinecke
2016-09-27 0:52 ` Martin K. Petersen
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