patch-2.4.0-prerelease linux/drivers/scsi/ibmmca.c
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- Lines: 4624
- Date:
Sun Dec 31 09:36:15 2000
- Orig file:
v2.4.0-test12/linux/drivers/scsi/ibmmca.c
- Orig date:
Sun Nov 19 18:44:13 2000
diff -u --recursive --new-file v2.4.0-test12/linux/drivers/scsi/ibmmca.c linux/drivers/scsi/ibmmca.c
@@ -1,27 +1,21 @@
/*
- * Low Level Driver for the IBM Microchannel SCSI Subsystem
- *
- * Copyright (c) 1995 Strom Systems, Inc. under the terms of the GNU
- * General Public License. Written by Martin Kolinek, December 1995.
- * Further development by: Chris Beauregard, Klaus Kudielka, Michael Lang
- * See the file README.ibmmca for a detailed description of this driver,
- * the commandline arguments and the history of its development.
- * See the WWW-page: http://www.uni-mainz.de/~langm000/linux.html for latest
- * updates, info and ADF-files for adapters supported by this driver.
- */
+ Low Level Linux Driver for the IBM Microchannel SCSI Subsystem for
+ Linux Kernel >= 2.4.0.
+ Copyright (c) 1995 Strom Systems, Inc. under the terms of the GNU
+ General Public License. Written by Martin Kolinek, December 1995.
+ Further development by: Chris Beauregard, Klaus Kudielka, Michael Lang
+ See the file README.ibmmca for a detailed description of this driver,
+ the commandline arguments and the history of its development.
+ See the WWW-page: http://www.uni-mainz.de/~langm000/linux.html for latest
+ updates, info and ADF-files for adapters supported by this driver.
+*/
-/******************* HEADER FILE INCLUDES ************************************/
#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif
-
-/* choose adaption for Kernellevel */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,65)
-#define OLDKERN
-#else
-#undef OLDKERN
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
+#error "This driver works only with kernel 2.4.0 or higher!"
#endif
-
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/ctype.h>
@@ -34,164 +28,141 @@
#include <linux/stat.h>
#include <linux/mca.h>
#include <asm/system.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,17)
#include <linux/spinlock.h>
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
-#include <asm/spinlock.h>
-#endif
#include <asm/io.h>
#include <linux/init.h>
#include "sd.h"
#include "scsi.h"
#include "hosts.h"
#include "ibmmca.h"
-
-#include <linux/config.h> /* for CONFIG_SCSI_IBMMCA etc. */
-
-/******************* LOCAL DEFINES *******************************************/
-
-/* milliseconds of delay for timing out reset. */
-#ifndef mdelay
-#define mdelay(a) udelay((a) * 1000)
-#endif
-
-/*--------------------------------------------------------------------*/
+#include <linux/config.h>
/* current version of this driver-source: */
-#define IBMMCA_SCSI_DRIVER_VERSION "3.2"
+#define IBMMCA_SCSI_DRIVER_VERSION "4.0"
-/*--------------------------------------------------------------------*/
+#define IBMLOCK spin_lock_irqsave(&io_request_lock, flags);
+#define IBMUNLOCK spin_unlock_irqrestore(&io_request_lock, flags);
/* driver configuration */
-#define IM_MAX_HOSTS 8 /* maximum number of host adapters */
-#define IM_RESET_DELAY 60 /* seconds allowed for a reset */
+#define IM_MAX_HOSTS 8 /* maximum number of host adapters */
+#define IM_RESET_DELAY 60 /* seconds allowed for a reset */
/* driver debugging - #undef all for normal operation */
-
/* if defined: count interrupts and ignore this special one: */
-#undef IM_DEBUG_TIMEOUT 50
-#define TIMEOUT_PUN 0
-#define TIMEOUT_LUN 0
+#undef IM_DEBUG_TIMEOUT 50
+#define TIMEOUT_PUN 0
+#define TIMEOUT_LUN 0
/* verbose interrupt: */
-#undef IM_DEBUG_INT
+#undef IM_DEBUG_INT
/* verbose queuecommand: */
-#undef IM_DEBUG_CMD
+#undef IM_DEBUG_CMD
/* verbose queucommand for specific SCSI-device type: */
-#undef IM_DEBUG_CMD_SPEC_DEV
+#undef IM_DEBUG_CMD_SPEC_DEV
/* verbose device probing */
-#define IM_DEBUG_PROBE
+#undef IM_DEBUG_PROBE
/* device type that shall be displayed on syslog (only during debugging): */
-#define IM_DEBUG_CMD_DEVICE TYPE_TAPE
+#define IM_DEBUG_CMD_DEVICE TYPE_TAPE
/* relative addresses of hardware registers on a subsystem */
-#define IM_CMD_REG(hi) (hosts[(hi)]->io_port) /*Command Interface, (4 bytes long) */
-#define IM_ATTN_REG(hi) (hosts[(hi)]->io_port+4) /*Attention (1 byte) */
-#define IM_CTR_REG(hi) (hosts[(hi)]->io_port+5) /*Basic Control (1 byte) */
-#define IM_INTR_REG(hi) (hosts[(hi)]->io_port+6) /*Interrupt Status (1 byte, r/o) */
-#define IM_STAT_REG(hi) (hosts[(hi)]->io_port+7) /*Basic Status (1 byte, read only) */
+#define IM_CMD_REG(hi) (hosts[(hi)]->io_port) /*Command Interface, (4 bytes long) */
+#define IM_ATTN_REG(hi) (hosts[(hi)]->io_port+4) /*Attention (1 byte) */
+#define IM_CTR_REG(hi) (hosts[(hi)]->io_port+5) /*Basic Control (1 byte) */
+#define IM_INTR_REG(hi) (hosts[(hi)]->io_port+6) /*Interrupt Status (1 byte, r/o) */
+#define IM_STAT_REG(hi) (hosts[(hi)]->io_port+7) /*Basic Status (1 byte, read only) */
/* basic I/O-port of first adapter */
-#define IM_IO_PORT 0x3540
+#define IM_IO_PORT 0x3540
/* maximum number of hosts that can be found */
-#define IM_N_IO_PORT 8
+#define IM_N_IO_PORT 8
/*requests going into the upper nibble of the Attention register */
/*note: the lower nibble specifies the device(0-14), or subsystem(15) */
-#define IM_IMM_CMD 0x10 /*immediate command */
-#define IM_SCB 0x30 /*Subsystem Control Block command */
-#define IM_LONG_SCB 0x40 /*long Subsystem Control Block command */
-#define IM_EOI 0xe0 /*end-of-interrupt request */
+#define IM_IMM_CMD 0x10 /*immediate command */
+#define IM_SCB 0x30 /*Subsystem Control Block command */
+#define IM_LONG_SCB 0x40 /*long Subsystem Control Block command */
+#define IM_EOI 0xe0 /*end-of-interrupt request */
/*values for bits 7,1,0 of Basic Control reg. (bits 6-2 reserved) */
-#define IM_HW_RESET 0x80 /*hardware reset */
-#define IM_ENABLE_DMA 0x02 /*enable subsystem's busmaster DMA */
-#define IM_ENABLE_INTR 0x01 /*enable interrupts to the system */
+#define IM_HW_RESET 0x80 /*hardware reset */
+#define IM_ENABLE_DMA 0x02 /*enable subsystem's busmaster DMA */
+#define IM_ENABLE_INTR 0x01 /*enable interrupts to the system */
/*to interpret the upper nibble of Interrupt Status register */
/*note: the lower nibble specifies the device(0-14), or subsystem(15) */
-#define IM_SCB_CMD_COMPLETED 0x10
-#define IM_SCB_CMD_COMPLETED_WITH_RETRIES 0x50
-#define IM_LOOP_SCATTER_BUFFER_FULL 0x60
-#define IM_ADAPTER_HW_FAILURE 0x70
-#define IM_IMMEDIATE_CMD_COMPLETED 0xa0
-#define IM_CMD_COMPLETED_WITH_FAILURE 0xc0
-#define IM_CMD_ERROR 0xe0
-#define IM_SOFTWARE_SEQUENCING_ERROR 0xf0
+#define IM_SCB_CMD_COMPLETED 0x10
+#define IM_SCB_CMD_COMPLETED_WITH_RETRIES 0x50
+#define IM_LOOP_SCATTER_BUFFER_FULL 0x60
+#define IM_ADAPTER_HW_FAILURE 0x70
+#define IM_IMMEDIATE_CMD_COMPLETED 0xa0
+#define IM_CMD_COMPLETED_WITH_FAILURE 0xc0
+#define IM_CMD_ERROR 0xe0
+#define IM_SOFTWARE_SEQUENCING_ERROR 0xf0
/*to interpret bits 3-0 of Basic Status register (bits 7-4 reserved) */
-#define IM_CMD_REG_FULL 0x08
-#define IM_CMD_REG_EMPTY 0x04
-#define IM_INTR_REQUEST 0x02
-#define IM_BUSY 0x01
+#define IM_CMD_REG_FULL 0x08
+#define IM_CMD_REG_EMPTY 0x04
+#define IM_INTR_REQUEST 0x02
+#define IM_BUSY 0x01
/*immediate commands (word written into low 2 bytes of command reg) */
-#define IM_RESET_IMM_CMD 0x0400
-#define IM_FEATURE_CTR_IMM_CMD 0x040c
-#define IM_DMA_PACING_IMM_CMD 0x040d
-#define IM_ASSIGN_IMM_CMD 0x040e
-#define IM_ABORT_IMM_CMD 0x040f
-#define IM_FORMAT_PREP_IMM_CMD 0x0417
+#define IM_RESET_IMM_CMD 0x0400
+#define IM_FEATURE_CTR_IMM_CMD 0x040c
+#define IM_DMA_PACING_IMM_CMD 0x040d
+#define IM_ASSIGN_IMM_CMD 0x040e
+#define IM_ABORT_IMM_CMD 0x040f
+#define IM_FORMAT_PREP_IMM_CMD 0x0417
/*SCB (Subsystem Control Block) structure */
-struct im_scb
- {
- unsigned short command; /*command word (read, etc.) */
- unsigned short enable; /*enable word, modifies cmd */
- union
- {
- unsigned long log_blk_adr; /*block address on SCSI device */
- unsigned char scsi_cmd_length; /*6,10,12, for other scsi cmd */
- }
- u1;
- unsigned long sys_buf_adr; /*physical system memory adr */
- unsigned long sys_buf_length; /*size of sys mem buffer */
- unsigned long tsb_adr; /*Termination Status Block adr */
- unsigned long scb_chain_adr; /*optional SCB chain address */
- union
- {
- struct
- {
- unsigned short count; /*block count, on SCSI device */
- unsigned short length; /*block length, on SCSI device */
- }
- blk;
- unsigned char scsi_command[12]; /*other scsi command */
- }
- u2;
- };
+struct im_scb {
+ unsigned short command; /*command word (read, etc.) */
+ unsigned short enable; /*enable word, modifies cmd */
+ union {
+ unsigned long log_blk_adr; /*block address on SCSI device */
+ unsigned char scsi_cmd_length; /*6,10,12, for other scsi cmd */
+ } u1;
+ unsigned long sys_buf_adr; /*physical system memory adr */
+ unsigned long sys_buf_length; /*size of sys mem buffer */
+ unsigned long tsb_adr; /*Termination Status Block adr */
+ unsigned long scb_chain_adr; /*optional SCB chain address */
+ union {
+ struct {
+ unsigned short count; /*block count, on SCSI device */
+ unsigned short length; /*block length, on SCSI device */
+ } blk;
+ unsigned char scsi_command[12]; /*other scsi command */
+ } u2;
+};
/*structure scatter-gather element (for list of system memory areas) */
-struct im_sge
- {
- void *address;
- unsigned long byte_length;
- };
+struct im_sge {
+ void *address;
+ unsigned long byte_length;
+};
/*structure returned by a get_pos_info command: */
-struct im_pos_info
- {
- unsigned short pos_id; /* adapter id */
- unsigned char pos_3a; /* pos 3 (if pos 6 = 0) */
- unsigned char pos_2; /* pos 2 */
- unsigned char int_level; /* interrupt level IRQ 11 or 14 */
- unsigned char pos_4a; /* pos 4 (if pos 6 = 0) */
- unsigned short connector_size; /* MCA connector size: 16 or 32 Bit */
- unsigned char num_luns; /* number of supported luns per device */
- unsigned char num_puns; /* number of supported puns */
- unsigned char pacing_factor; /* pacing factor */
- unsigned char num_ldns; /* number of ldns available */
- unsigned char eoi_off; /* time EOI and interrupt inactive */
- unsigned char max_busy; /* time between reset and busy on */
- unsigned short cache_stat; /* ldn cachestat. Bit=1 = not cached */
- unsigned short retry_stat; /* retry status of ldns. Bit=1=disabled */
- unsigned char pos_4b; /* pos 4 (if pos 6 = 1) */
- unsigned char pos_3b; /* pos 3 (if pos 6 = 1) */
- unsigned char pos_6; /* pos 6 */
- unsigned char pos_5; /* pos 5 */
- unsigned short max_overlap; /* maximum overlapping requests */
- unsigned short num_bus; /* number of SCSI-busses */
- };
+struct im_pos_info {
+ unsigned short pos_id; /* adapter id */
+ unsigned char pos_3a; /* pos 3 (if pos 6 = 0) */
+ unsigned char pos_2; /* pos 2 */
+ unsigned char int_level; /* interrupt level IRQ 11 or 14 */
+ unsigned char pos_4a; /* pos 4 (if pos 6 = 0) */
+ unsigned short connector_size; /* MCA connector size: 16 or 32 Bit */
+ unsigned char num_luns; /* number of supported luns per device */
+ unsigned char num_puns; /* number of supported puns */
+ unsigned char pacing_factor; /* pacing factor */
+ unsigned char num_ldns; /* number of ldns available */
+ unsigned char eoi_off; /* time EOI and interrupt inactive */
+ unsigned char max_busy; /* time between reset and busy on */
+ unsigned short cache_stat; /* ldn cachestat. Bit=1 = not cached */
+ unsigned short retry_stat; /* retry status of ldns. Bit=1=disabled */
+ unsigned char pos_4b; /* pos 4 (if pos 6 = 1) */
+ unsigned char pos_3b; /* pos 3 (if pos 6 = 1) */
+ unsigned char pos_6; /* pos 6 */
+ unsigned char pos_5; /* pos 5 */
+ unsigned short max_overlap; /* maximum overlapping requests */
+ unsigned short num_bus; /* number of SCSI-busses */
+};
/*values for SCB command word */
#define IM_NO_SYNCHRONOUS 0x0040 /*flag for any command */
@@ -223,39 +194,32 @@
#define IM_CHAIN_ON_NO_ERROR 0x0001
/*TSB (Termination Status Block) structure */
-struct im_tsb
- {
- unsigned short end_status;
- unsigned short reserved1;
- unsigned long residual_byte_count;
- unsigned long sg_list_element_adr;
- unsigned short status_length;
- unsigned char dev_status;
- unsigned char cmd_status;
- unsigned char dev_error;
- unsigned char cmd_error;
- unsigned short reserved2;
- unsigned short reserved3;
- unsigned short low_of_last_scb_adr;
- unsigned short high_of_last_scb_adr;
- };
+struct im_tsb {
+ unsigned short end_status;
+ unsigned short reserved1;
+ unsigned long residual_byte_count;
+ unsigned long sg_list_element_adr;
+ unsigned short status_length;
+ unsigned char dev_status;
+ unsigned char cmd_status;
+ unsigned char dev_error;
+ unsigned char cmd_error;
+ unsigned short reserved2;
+ unsigned short reserved3;
+ unsigned short low_of_last_scb_adr;
+ unsigned short high_of_last_scb_adr;
+};
/*subsystem uses interrupt request level 14 */
#define IM_IRQ 14
/*SCSI-2 F/W may evade to interrupt 11 */
#define IM_IRQ_FW 11
-/*--------------------------------------------------------------------*/
-/*
- The model 95 doesn't have a standard activity light. Instead it
- has a row of alphanumerial LEDs on the front. We use the last one
- as the activity indicator if we think we're on a model 95. I suspect
- the model id check will be either too narrow or too general, and some
- machines won't have an activity indicator. Oh well...
-
- The regular PS/2 disk led is turned on/off by bits 6,7 of system
- control port.
-*/
+/* Model 95 has an additional alphanumeric display, which can be used
+ to display SCSI-activities. 8595 models do not have any disk led, which
+ makes this feature quite useful.
+ The regular PS/2 disk led is turned on/off by bits 6,7 of system
+ control port. */
/* LED display-port (actually, last LED on display) */
#define MOD95_LED_PORT 0x108
@@ -265,7 +229,7 @@
#define LED_DISP 1
#define LED_ADISP 2
#define LED_ACTIVITY 4
-
+/* failed intr */
#define CMD_FAIL 255
/* The SCSI-ID(!) of the accessed SCSI-device is shown on PS/2-95 machines' LED
@@ -286,38 +250,27 @@
/* Panel / LED on, do it right for F/W addressin, too. adisplay will
* just ignore ids>7, as the panel has only 7 digits available */
-#define PS2_DISK_LED_ON(ad,id) {\
- if (display_mode & LED_DISP) { \
- if (id>9) \
- outw((ad+48)|((id+55)<<8), MOD95_LED_PORT ); \
- else \
- outw((ad+48)|((id+48)<<8), MOD95_LED_PORT ); } \
- else if (display_mode & LED_ADISP) { \
- if (id<7) outb((char)(id+48),MOD95_LED_PORT+1+id); \
- outb((char)(ad+48), MOD95_LED_PORT); } \
- if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
- outb(inb(PS2_SYS_CTR) | 0xc0, PS2_SYS_CTR); \
-}
+#define PS2_DISK_LED_ON(ad,id) { if (display_mode & LED_DISP) { if (id>9) \
+ outw((ad+48)|((id+55)<<8), MOD95_LED_PORT ); else \
+ outw((ad+48)|((id+48)<<8), MOD95_LED_PORT ); } else \
+ if (display_mode & LED_ADISP) { if (id<7) outb((char)(id+48),MOD95_LED_PORT+1+id); \
+ outb((char)(ad+48), MOD95_LED_PORT); } \
+ if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
+ outb(inb(PS2_SYS_CTR) | 0xc0, PS2_SYS_CTR); }
+
/* Panel / LED off */
/* bug fixed, Dec 15, 1997, where | was replaced by & here */
-#define PS2_DISK_LED_OFF() {\
- if (display_mode & LED_DISP) \
- outw(0x2020, MOD95_LED_PORT ); \
- else if (display_mode & LED_ADISP) { \
- outl(0x20202020,MOD95_LED_PORT); \
- outl(0x20202020,MOD95_LED_PORT+4); } \
- if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
- outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); \
-}
-
-/*--------------------------------------------------------------------*/
+#define PS2_DISK_LED_OFF() { if (display_mode & LED_DISP) \
+ outw(0x2020, MOD95_LED_PORT ); else if (display_mode & LED_ADISP) { \
+ outl(0x20202020,MOD95_LED_PORT); outl(0x20202020,MOD95_LED_PORT+4); } \
+ if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
+ outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); }
/*list of supported subsystems */
-struct subsys_list_struct
- {
- unsigned short mca_id;
- char *description;
- };
+struct subsys_list_struct {
+ unsigned short mca_id;
+ char *description;
+};
/* types of different supported hardware that goes to hostdata special */
#define IBM_SCSI2_FW 0
@@ -331,71 +284,56 @@
#define INTEGRATED_SCSI 101
/* List of possible IBM-SCSI-adapters */
-struct subsys_list_struct subsys_list[] =
-{
- {0x8efc, "IBM SCSI-2 F/W Adapter"}, /* special = 0 */
- {0x8efd, "IBM 7568 Industrial Computer SCSI Adapter w/Cache"}, /* special = 1 */
- {0x8ef8, "IBM Expansion Unit SCSI Controller"},/* special = 2 */
- {0x8eff, "IBM SCSI Adapter w/Cache"}, /* special = 3 */
- {0x8efe, "IBM SCSI Adapter"}, /* special = 4 */
-};
-
-/*for /proc filesystem, only valid in older kernel releases */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,27)
-struct proc_dir_entry proc_scsi_ibmmca =
-{
- PROC_SCSI_IBMMCA, 6, "ibmmca",
- S_IFDIR | S_IRUGO | S_IXUGO, 2,
- 0, 0, 0, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL
+struct subsys_list_struct subsys_list[] = {
+ {0x8efc,"IBM SCSI-2 F/W Adapter"}, /* special = 0 */
+ {0x8efd,"IBM 7568 Industrial Computer SCSI Adapter w/Cache"}, /* special = 1 */
+ {0x8ef8,"IBM Expansion Unit SCSI Controller"},/* special = 2 */
+ {0x8eff,"IBM SCSI Adapter w/Cache"}, /* special = 3 */
+ {0x8efe,"IBM SCSI Adapter"}, /* special = 4 */
};
-#endif
/* Max number of logical devices (can be up from 0 to 14). 15 is the address
of the adapter itself. */
#define MAX_LOG_DEV 15
/*local data for a logical device */
-struct logical_device
- {
- struct im_scb scb; /* SCSI-subsystem-control-block structure */
- struct im_tsb tsb; /* SCSI command complete status block structure */
- struct im_sge sge[16]; /* scatter gather list structure */
- unsigned char buf[256]; /* SCSI command return data buffer */
- Scsi_Cmnd *cmd; /* SCSI-command that is currently in progress */
- int device_type; /* type of the SCSI-device. See include/scsi/scsi.h
- for interpretation of the possible values */
- int block_length;/* blocksize of a particular logical SCSI-device */
- int cache_flag; /* 1 if this is uncached, 0 if cache is present for ldn */
- int retry_flag; /* 1 if adapter retry is disabled, 0 if enabled */
- };
+struct logical_device {
+ struct im_scb scb; /* SCSI-subsystem-control-block structure */
+ struct im_tsb tsb; /* SCSI command complete status block structure */
+ struct im_sge sge[16]; /* scatter gather list structure */
+ unsigned char buf[256]; /* SCSI command return data buffer */
+ Scsi_Cmnd *cmd; /* SCSI-command that is currently in progress */
+ int device_type; /* type of the SCSI-device. See include/scsi/scsi.h
+ for interpretation of the possible values */
+ int block_length; /* blocksize of a particular logical SCSI-device */
+ int cache_flag; /* 1 if this is uncached, 0 if cache is present for ldn */
+ int retry_flag; /* 1 if adapter retry is disabled, 0 if enabled */
+};
/* statistics of the driver during operations (for proc_info) */
-struct Driver_Statistics
- {
- /* SCSI statistics on the adapter */
- int ldn_access[MAX_LOG_DEV+1]; /* total accesses on a ldn */
- int ldn_read_access[MAX_LOG_DEV+1]; /* total read-access on a ldn */
- int ldn_write_access[MAX_LOG_DEV+1]; /* total write-access on a ldn */
- int ldn_inquiry_access[MAX_LOG_DEV+1]; /* total inquiries on a ldn */
- int ldn_modeselect_access[MAX_LOG_DEV+1]; /* total mode selects on ldn */
- int scbs; /* short SCBs queued */
- int long_scbs; /* long SCBs queued */
- int total_accesses; /* total accesses on all ldns */
- int total_interrupts; /* total interrupts (should be
- same as total_accesses) */
- int total_errors; /* command completed with error */
- /* dynamical assignment statistics */
- int total_scsi_devices; /* number of physical pun,lun */
- int dyn_flag; /* flag showing dynamical mode */
- int dynamical_assignments; /* number of remappings of ldns */
- int ldn_assignments[MAX_LOG_DEV+1]; /* number of remappings of each
- ldn */
- };
+struct Driver_Statistics {
+ /* SCSI statistics on the adapter */
+ int ldn_access[MAX_LOG_DEV+1]; /* total accesses on a ldn */
+ int ldn_read_access[MAX_LOG_DEV+1]; /* total read-access on a ldn */
+ int ldn_write_access[MAX_LOG_DEV+1]; /* total write-access on a ldn */
+ int ldn_inquiry_access[MAX_LOG_DEV+1]; /* total inquiries on a ldn */
+ int ldn_modeselect_access[MAX_LOG_DEV+1]; /* total mode selects on ldn */
+ int scbs; /* short SCBs queued */
+ int long_scbs; /* long SCBs queued */
+ int total_accesses; /* total accesses on all ldns */
+ int total_interrupts; /* total interrupts (should be
+ same as total_accesses) */
+ int total_errors; /* command completed with error */
+ /* dynamical assignment statistics */
+ int total_scsi_devices; /* number of physical pun,lun */
+ int dyn_flag; /* flag showing dynamical mode */
+ int dynamical_assignments; /* number of remappings of ldns */
+ int ldn_assignments[MAX_LOG_DEV+1]; /* number of remappings of each
+ ldn */
+};
/* data structure for each host adapter */
-struct ibmmca_hostdata
-{
+struct ibmmca_hostdata {
/* array of logical devices: */
struct logical_device _ld[MAX_LOG_DEV+1];
/* array to convert (pun, lun) into logical device number: */
@@ -419,14 +357,14 @@
int _last_scsi_blockcount[MAX_LOG_DEV+1];
/* last locgical block address */
unsigned long _last_scsi_logical_block[MAX_LOG_DEV+1];
- /* Counter that points on the next reassignable ldn for dynamical
- remapping. The default value is 7, that is the first reassignable
- number in the list at boottime: */
+ /* Counter that points on the next reassignable ldn for dynamical
+ remapping. The default value is 7, that is the first reassignable
+ number in the list at boottime: */
int _next_ldn;
/* Statistics-structure for this IBM-SCSI-host: */
struct Driver_Statistics _IBM_DS;
/* This hostadapters pos-registers pos2 until pos6 */
- unsigned _pos2, _pos3, _pos4, _pos5, _pos6;
+ unsigned int _pos[8];
/* assign a special variable, that contains dedicated info about the
adaptertype */
int _special;
@@ -456,13 +394,13 @@
#define special(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_special)
#define subsystem_connector_size(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_connector_size)
#define adapter_speed(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_adapter_speed)
-#define pos2(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos2)
-#define pos3(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos3)
-#define pos4(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos4)
-#define pos5(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos5)
-#define pos6(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos6)
+#define pos2(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[2])
+#define pos3(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[3])
+#define pos4(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[4])
+#define pos5(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[5])
+#define pos6(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[6])
-/* Define a arbitrary number as subsystem-marker-type. This number is, as
+/* Define a arbitrary number as subsystem-marker-type. This number is, as
described in the ANSI-SCSI-standard, not occupied by other device-types. */
#define TYPE_IBM_SCSI_ADAPTER 0x2F
@@ -508,32 +446,19 @@
#include <linux/module.h>
MODULE_PARM(boot_options, "s");
MODULE_PARM(io_port, "1-" __MODULE_STRING(IM_MAX_HOSTS) "i");
-MODULE_PARM(scsi_id, "1-" __MODULE_STRING(IM_MAX_HOSTS) "i");
+MODULE_PARM(scsi_id, "1-" __MODULE_STRING(IM_MAX_HOSTS) "i");
MODULE_PARM(display, "1i");
MODULE_PARM(adisplay, "1i");
-MODULE_PARM(bypass, "1i");
MODULE_PARM(normal, "1i");
MODULE_PARM(ansi, "1i");
#endif
-
/*counter of concurrent disk read/writes, to turn on/off disk led */
static int disk_rw_in_progress = 0;
-/* spinlock handling to avoid command clash while in operation */
-#ifndef OLDKERN
-spinlock_t info_lock = SPIN_LOCK_UNLOCKED;
-spinlock_t proc_lock = SPIN_LOCK_UNLOCKED;
-spinlock_t abort_lock = SPIN_LOCK_UNLOCKED;
-spinlock_t reset_lock = SPIN_LOCK_UNLOCKED;
-spinlock_t issue_lock = SPIN_LOCK_UNLOCKED;
-spinlock_t intr_lock = SPIN_LOCK_UNLOCKED;
-#endif
-
/* host information */
static int found = 0;
-static struct Scsi_Host *hosts[IM_MAX_HOSTS+1] = { NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
- NULL };
+static struct Scsi_Host *hosts[IM_MAX_HOSTS+1] = {
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
static unsigned int pos[8]; /* whole pos register-line for diagnosis */
/* Taking into account the additions, made by ZP Gu.
* This selects now the preset value from the configfile and
@@ -544,18 +469,11 @@
static char ibm_ansi_order = 0;
#endif
-/*-----------------------------------------------------------------------*/
-
-/******************* FUNCTIONS IN FORWARD DECLARATION ************************/
-
static void interrupt_handler (int, void *, struct pt_regs *);
-#ifndef OLDKERN
-static void do_interrupt_handler (int, void *, struct pt_regs *);
-#endif
static void issue_cmd (int, unsigned long, unsigned char);
static void internal_done (Scsi_Cmnd * cmd);
static void check_devices (int, int);
-static int immediate_assign(int, unsigned int, unsigned int, unsigned int,
+static int immediate_assign(int, unsigned int, unsigned int, unsigned int,
unsigned int);
static int immediate_feature(int, unsigned int, unsigned int);
#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
@@ -576,464 +494,291 @@
static int ldn_access_load(int, int);
static int ldn_access_total_read_write(int);
-static int bypass_controller = 0; /* bypass integrated SCSI-cmd set flag */
-
-/*--------------------------------------------------------------------*/
-
-/******************* LOCAL FUNCTIONS IMPLEMENTATION *************************/
-
-#ifndef OLDKERN
-/* newer Kernels need the spinlock interrupt handler */
-static void do_interrupt_handler (int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&io_request_lock, flags);
- interrupt_handler(irq, dev_id, regs);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
-}
-#endif
-
static void interrupt_handler (int irq, void *dev_id, struct pt_regs *regs)
{
- int host_index;
+ int host_index, ihost_index;
unsigned int intr_reg;
unsigned int cmd_result;
unsigned int ldn;
unsigned long flags;
Scsi_Cmnd *cmd;
int lastSCSI;
-
- host_index = 0; /* make sure, host_index is 0 */
+ IBMLOCK
/* search for one adapter-response on shared interrupt */
- while (hosts[host_index]
- && !(inb(IM_STAT_REG(host_index)) & IM_INTR_REQUEST))
- host_index++;
-
+ for (host_index=0;
+ hosts[host_index] && !(inb(IM_STAT_REG(host_index)) & IM_INTR_REQUEST);
+ host_index++);
/* return if some other device on this IRQ caused the interrupt */
- if (!hosts[host_index]) return;
+ if (!hosts[host_index]) {
+ IBMUNLOCK
+ return;
+ }
/* the reset-function already did all the job, even ints got
renabled on the subsystem, so just return */
if ((reset_status(host_index) == IM_RESET_NOT_IN_PROGRESS_NO_INT)||
- (reset_status(host_index) == IM_RESET_FINISHED_OK_NO_INT))
- {
- reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS;
- return;
- }
-
+ (reset_status(host_index) == IM_RESET_FINISHED_OK_NO_INT)) {
+ reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS;
+ IBMUNLOCK
+ return;
+ }
+
/*must wait for attention reg not busy, then send EOI to subsystem */
- while (1)
- {
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&intr_lock, flags);
-#endif
- /* if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY)) */
- if ((inb(IM_STAT_REG(host_index)) & 0xf) == (IM_CMD_REG_EMPTY | IM_INTR_REQUEST))
- break;
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- }
+ while (1) {
+ if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY)) break;
+ IBMUNLOCK /* cycle interrupt */
+ IBMLOCK
+ }
+ ihost_index=host_index;
/*get command result and logical device */
- intr_reg = (unsigned char)(inb (IM_INTR_REG(host_index)));
+ intr_reg = (unsigned char)(inb (IM_INTR_REG(ihost_index)));
cmd_result = intr_reg & 0xf0;
ldn = intr_reg & 0x0f;
-
/* get the last_scsi_command here */
- lastSCSI = last_scsi_command(host_index)[ldn];
-
+ lastSCSI = last_scsi_command(ihost_index)[ldn];
+ outb (IM_EOI | ldn, IM_ATTN_REG(ihost_index));
+ IBMUNLOCK
/*these should never happen (hw fails, or a local programming bug) */
- if (!global_command_error_excuse)
- {
- switch (cmd_result)
- { /* Prevent from Ooopsing on error to show the real reason */
- case IM_ADAPTER_HW_FAILURE:
- case IM_SOFTWARE_SEQUENCING_ERROR:
- case IM_CMD_ERROR:
- printk("\nIBM MCA SCSI: Fatal Subsystem ERROR!\n");
- printk(" Last cmd=0x%x, ena=%x, len=",lastSCSI,
- ld(host_index)[ldn].scb.enable);
- if (ld(host_index)[ldn].cmd)
- printk("%ld/%ld",(long)(ld(host_index)[ldn].cmd->request_bufflen),
- (long)(ld(host_index)[ldn].scb.sys_buf_length));
- else
- printk("none");
- printk(", ");
- if (ld(host_index)[ldn].cmd)
- printk("Blocksize=%d",ld(host_index)[ldn].scb.u2.blk.length);
- else
- printk("Blocksize=none");
- printk(", host=0x%x, ldn=0x%x\n",host_index, ldn);
- if (ld(host_index)[ldn].cmd)
- {
- printk("Blockcount=%d/%d\n",last_scsi_blockcount(host_index)[ldn],
- ld(host_index)[ldn].scb.u2.blk.count);
- printk("Logical block=%lx/%lx\n",last_scsi_logical_block(host_index)[ldn],
- ld(host_index)[ldn].scb.u1.log_blk_adr);
- }
- printk("Reason given: %s\n",
- (cmd_result==IM_ADAPTER_HW_FAILURE) ? "HARDWARE FAILURE" :
- (cmd_result==IM_SOFTWARE_SEQUENCING_ERROR) ? "SOFTWARE SEQUENCING ERROR" :
- (cmd_result==IM_CMD_ERROR) ? "COMMAND ERROR" : "UNKNOWN");
- /* if errors appear, enter this section to give detailed info */
- printk("IBM MCA SCSI: Subsystem Error-Status follows:\n");
- printk(" Command Type................: %x\n",
- last_scsi_type(host_index)[ldn]);
- printk(" Attention Register..........: %x\n",
- inb (IM_ATTN_REG(host_index)));
- printk(" Basic Control Register......: %x\n",
- inb (IM_CTR_REG(host_index)));
- printk(" Interrupt Status Register...: %x\n",
- intr_reg);
- printk(" Basic Status Register.......: %x\n",
- inb (IM_STAT_REG(host_index)));
- if ((last_scsi_type(host_index)[ldn]==IM_SCB)||
- (last_scsi_type(host_index)[ldn]==IM_LONG_SCB))
- {
- printk(" SCB-Command.................: %x\n",
- ld(host_index)[ldn].scb.command);
- printk(" SCB-Enable..................: %x\n",
- ld(host_index)[ldn].scb.enable);
- printk(" SCB-logical block address...: %lx\n",
- ld(host_index)[ldn].scb.u1.log_blk_adr);
- printk(" SCB-system buffer address...: %lx\n",
- ld(host_index)[ldn].scb.sys_buf_adr);
- printk(" SCB-system buffer length....: %lx\n",
- ld(host_index)[ldn].scb.sys_buf_length);
- printk(" SCB-tsb address.............: %lx\n",
- ld(host_index)[ldn].scb.tsb_adr);
- printk(" SCB-Chain address...........: %lx\n",
- ld(host_index)[ldn].scb.scb_chain_adr);
- printk(" SCB-block count.............: %x\n",
- ld(host_index)[ldn].scb.u2.blk.count);
- printk(" SCB-block length............: %x\n",
- ld(host_index)[ldn].scb.u2.blk.length);
- }
- printk(" Send this report to the maintainer.\n");
- panic("IBM MCA SCSI: Fatal errormessage from the subsystem (0x%X,0x%X)!\n",
- lastSCSI,cmd_result);
- break;
- }
- }
- else
- { /* The command error handling is made silent, but we tell the
- * calling function, that there is a reported error from the
- * adapter. */
- switch (cmd_result)
- {
- case IM_ADAPTER_HW_FAILURE:
- case IM_SOFTWARE_SEQUENCING_ERROR:
- case IM_CMD_ERROR:
- global_command_error_excuse = CMD_FAIL;
- break;
- default:
- global_command_error_excuse = 0;
- break;
- }
- }
-
+ if (!global_command_error_excuse) {
+ switch (cmd_result) {
+ /* Prevent from Ooopsing on error to show the real reason */
+ case IM_ADAPTER_HW_FAILURE:
+ case IM_SOFTWARE_SEQUENCING_ERROR:
+ case IM_CMD_ERROR:
+ printk("\nIBM MCA SCSI: Fatal Subsystem ERROR!\n");
+ printk(" Last cmd=0x%x, ena=%x, len=",lastSCSI,
+ ld(ihost_index)[ldn].scb.enable);
+ if (ld(ihost_index)[ldn].cmd)
+ printk("%ld/%ld,",(long)(ld(ihost_index)[ldn].cmd->request_bufflen),
+ (long)(ld(ihost_index)[ldn].scb.sys_buf_length));
+ else
+ printk("none,");
+ if (ld(ihost_index)[ldn].cmd)
+ printk("Blocksize=%d",ld(ihost_index)[ldn].scb.u2.blk.length);
+ else
+ printk("Blocksize=none");
+ printk(", host=0x%x, ldn=0x%x\n",ihost_index, ldn);
+ if (ld(ihost_index)[ldn].cmd) {
+ printk("Blockcount=%d/%d\n",last_scsi_blockcount(ihost_index)[ldn],
+ ld(ihost_index)[ldn].scb.u2.blk.count);
+ printk("Logical block=%lx/%lx\n",last_scsi_logical_block(ihost_index)[ldn],
+ ld(ihost_index)[ldn].scb.u1.log_blk_adr);
+ }
+ printk("Reason given: %s\n",
+ (cmd_result==IM_ADAPTER_HW_FAILURE) ? "HARDWARE FAILURE" :
+ (cmd_result==IM_SOFTWARE_SEQUENCING_ERROR) ? "SOFTWARE SEQUENCING ERROR" :
+ (cmd_result==IM_CMD_ERROR) ? "COMMAND ERROR" : "UNKNOWN");
+ /* if errors appear, enter this section to give detailed info */
+ printk("IBM MCA SCSI: Subsystem Error-Status follows:\n");
+ printk(" Command Type................: %x\n",
+ last_scsi_type(ihost_index)[ldn]);
+ printk(" Attention Register..........: %x\n",
+ inb (IM_ATTN_REG(ihost_index)));
+ printk(" Basic Control Register......: %x\n",
+ inb (IM_CTR_REG(ihost_index)));
+ printk(" Interrupt Status Register...: %x\n",
+ intr_reg);
+ printk(" Basic Status Register.......: %x\n",
+ inb (IM_STAT_REG(ihost_index)));
+ if ((last_scsi_type(ihost_index)[ldn]==IM_SCB)||
+ (last_scsi_type(ihost_index)[ldn]==IM_LONG_SCB)) {
+ printk(" SCB-Command.................: %x\n",
+ ld(ihost_index)[ldn].scb.command);
+ printk(" SCB-Enable..................: %x\n",
+ ld(ihost_index)[ldn].scb.enable);
+ printk(" SCB-logical block address...: %lx\n",
+ ld(ihost_index)[ldn].scb.u1.log_blk_adr);
+ printk(" SCB-system buffer address...: %lx\n",
+ ld(ihost_index)[ldn].scb.sys_buf_adr);
+ printk(" SCB-system buffer length....: %lx\n",
+ ld(ihost_index)[ldn].scb.sys_buf_length);
+ printk(" SCB-tsb address.............: %lx\n",
+ ld(ihost_index)[ldn].scb.tsb_adr);
+ printk(" SCB-Chain address...........: %lx\n",
+ ld(ihost_index)[ldn].scb.scb_chain_adr);
+ printk(" SCB-block count.............: %x\n",
+ ld(ihost_index)[ldn].scb.u2.blk.count);
+ printk(" SCB-block length............: %x\n",
+ ld(ihost_index)[ldn].scb.u2.blk.length);
+ }
+ printk(" Send this report to the maintainer.\n");
+ panic("IBM MCA SCSI: Fatal errormessage from the subsystem (0x%X,0x%X)!\n",
+ lastSCSI,cmd_result);
+ break;
+ }
+ } else {
+ /* The command error handling is made silent, but we tell the
+ * calling function, that there is a reported error from the
+ * adapter. */
+ switch (cmd_result) {
+ case IM_ADAPTER_HW_FAILURE: case IM_SOFTWARE_SEQUENCING_ERROR:
+ case IM_CMD_ERROR: global_command_error_excuse = CMD_FAIL; break;
+ default: global_command_error_excuse = 0; break;
+ }
+ }
/* if no panic appeared, increase the interrupt-counter */
- IBM_DS(host_index).total_interrupts++;
-
+ IBM_DS(ihost_index).total_interrupts++;
/*only for local checking phase */
- if (local_checking_phase_flag(host_index))
- {
- stat_result(host_index) = cmd_result;
- got_interrupt(host_index) = 1;
- reset_status(host_index) = IM_RESET_FINISHED_OK;
- last_scsi_command(host_index)[ldn] = NO_SCSI;
-
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- return;
- }
- /*handling of commands coming from upper level of scsi driver */
- else
- {
- if (last_scsi_type(host_index)[ldn] == IM_IMM_CMD)
- {
- /*verify ldn, and may handle rare reset immediate command */
- if ((reset_status(host_index) == IM_RESET_IN_PROGRESS)&&
- (last_scsi_command(host_index)[ldn] == IM_RESET_IMM_CMD))
- {
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
- {
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF ();
- reset_status(host_index) = IM_RESET_FINISHED_FAIL;
- }
- else
- {
- /*reset disk led counter, turn off disk led */
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF ();
- reset_status(host_index) = IM_RESET_FINISHED_OK;
- }
- stat_result(host_index) = cmd_result;
- last_scsi_command(host_index)[ldn] = NO_SCSI;
- last_scsi_type(host_index)[ldn] = 0;
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- return;
- }
- else if (last_scsi_command(host_index)[ldn] == IM_ABORT_IMM_CMD)
- { /* react on SCSI abort command */
+ if (local_checking_phase_flag(ihost_index)) {
+ stat_result(ihost_index) = cmd_result;
+ got_interrupt(ihost_index) = 1;
+ reset_status(ihost_index) = IM_RESET_FINISHED_OK;
+ last_scsi_command(ihost_index)[ldn] = NO_SCSI;
+ return;
+ }
+ /* handling of commands coming from upper level of scsi driver */
+ if (last_scsi_type(ihost_index)[ldn] == IM_IMM_CMD) {
+ /* verify ldn, and may handle rare reset immediate command */
+ if ((reset_status(ihost_index) == IM_RESET_IN_PROGRESS)&&
+ (last_scsi_command(ihost_index)[ldn] == IM_RESET_IMM_CMD)) {
+ if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
+ disk_rw_in_progress = 0;
+ PS2_DISK_LED_OFF ();
+ reset_status(ihost_index) = IM_RESET_FINISHED_FAIL;
+ } else {
+ /*reset disk led counter, turn off disk led */
+ disk_rw_in_progress = 0;
+ PS2_DISK_LED_OFF ();
+ reset_status(ihost_index) = IM_RESET_FINISHED_OK;
+ }
+ stat_result(ihost_index) = cmd_result;
+ last_scsi_command(ihost_index)[ldn] = NO_SCSI;
+ last_scsi_type(ihost_index)[ldn] = 0;
+ return;
+ } else if (last_scsi_command(ihost_index)[ldn] == IM_ABORT_IMM_CMD) {
+ /* react on SCSI abort command */
#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n");
-#endif
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF();
- cmd = ld(host_index)[ldn].cmd;
- ld(host_index)[ldn].cmd = NULL;
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
- cmd->result = DID_NO_CONNECT << 16;
- else
- cmd->result = DID_ABORT << 16;
- stat_result(host_index) = cmd_result;
- last_scsi_command(host_index)[ldn] = NO_SCSI;
- last_scsi_type(host_index)[ldn] = 0;
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- if (cmd->scsi_done)
- (cmd->scsi_done)(cmd); /* should be the internal_done */
- return;
- }
- else
- {
- disk_rw_in_progress = 0;
- PS2_DISK_LED_OFF ();
- reset_status(host_index) = IM_RESET_FINISHED_OK;
- stat_result(host_index) = cmd_result;
- last_scsi_command(host_index)[ldn] = NO_SCSI;
-
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- return;
- }
- }
- last_scsi_command(host_index)[ldn] = NO_SCSI;
- last_scsi_type(host_index)[ldn] = 0;
- cmd = ld(host_index)[ldn].cmd;
- ld(host_index)[ldn].cmd = NULL;
+ printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n");
+#endif
+ disk_rw_in_progress = 0;
+ PS2_DISK_LED_OFF();
+ cmd = ld(ihost_index)[ldn].cmd;
+ ld(ihost_index)[ldn].cmd = NULL;
+ if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
+ cmd->result = DID_NO_CONNECT << 16;
+ else
+ cmd->result = DID_ABORT << 16;
+ stat_result(ihost_index) = cmd_result;
+ last_scsi_command(ihost_index)[ldn] = NO_SCSI;
+ last_scsi_type(ihost_index)[ldn] = 0;
+ if (cmd->scsi_done)
+ (cmd->scsi_done)(cmd); /* should be the internal_done */
+ return;
+ } else {
+ disk_rw_in_progress = 0;
+ PS2_DISK_LED_OFF ();
+ reset_status(ihost_index) = IM_RESET_FINISHED_OK;
+ stat_result(ihost_index) = cmd_result;
+ last_scsi_command(ihost_index)[ldn] = NO_SCSI;
+ return;
+ }
+ }
+ last_scsi_command(ihost_index)[ldn] = NO_SCSI;
+ last_scsi_type(ihost_index)[ldn] = 0;
+ cmd = ld(ihost_index)[ldn].cmd;
+ ld(ihost_index)[ldn].cmd = NULL;
#ifdef IM_DEBUG_TIMEOUT
- if (cmd)
- {
- if ((cmd->target == TIMEOUT_PUN)&&
- (cmd->lun == TIMEOUT_LUN))
- {
- printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n",
- cmd->target, cmd->lun);
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- return;
- }
- }
-#endif
- /*if no command structure, just return, else clear cmd */
- if (!cmd)
- {
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
-#endif
- return;
- }
-
-#ifdef IM_DEBUG_INT
- printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n",
- cmd->cmnd[0], intr_reg,
- ld(host_index)[ldn].tsb.dev_status,
- ld(host_index)[ldn].tsb.cmd_status,
- ld(host_index)[ldn].tsb.dev_error,
- ld(host_index)[ldn].tsb.cmd_error);
-#endif
-
- /*if this is end of media read/write, may turn off PS/2 disk led */
- if ((ld(host_index)[ldn].device_type!=TYPE_NO_LUN)&&
- (ld(host_index)[ldn].device_type!=TYPE_NO_DEVICE))
- { /* only access this, if there was a valid device addressed */
- switch (cmd->cmnd[0])
- {
- case READ_6:
- case WRITE_6:
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
- if (--disk_rw_in_progress == 0)
- PS2_DISK_LED_OFF ();
- }
- }
-
- /* IBM describes the status-mask to be 0x1e, but this is not conform
- * with SCSI-defintion, I suppose, the reason for it is that IBM
- * adapters do not support CMD_TERMINATED, TASK_SET_FULL and
- * ACA_ACTIVE as returning statusbyte information. (ML) */
- if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
- {
- cmd->result = (unsigned char)(ld(host_index)[ldn].tsb.dev_status & 0x1e);
- IBM_DS(host_index).total_errors++;
- }
- else
- cmd->result = 0;
- /* write device status into cmd->result, and call done function */
- if (lastSCSI == NO_SCSI) /* unexpected interrupt :-( */
- cmd->result |= DID_BAD_INTR << 16;
- else /* things went right :-) */
- cmd->result |= DID_OK << 16;
- outb (IM_EOI | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&intr_lock, flags);
+ if (cmd) {
+ if ((cmd->target == TIMEOUT_PUN)&&(cmd->lun == TIMEOUT_LUN)) {
+ printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n",
+ cmd->target, cmd->lun);
+ return;
+ }
+ }
#endif
- /* This is for Kernel 2.2.x. Something weired happens here.
- * Between the command got queued and the interrupt is released,
- * the flags sometimes contain different values, which must
- * be a strange thing. E.g. it appears when cold-booting with a
- * tape drive at id0. */
- cmd->flags &= 0x3f;
- if (cmd->scsi_done)
- (cmd->scsi_done)(cmd);
- }
- if (lastSCSI == NO_SCSI)
- printk("IBM MCA SCSI: WARNING - Interrupt from non-pending SCSI-command!\n");
+ /*if no command structure, just return, else clear cmd */
+ if (!cmd) return;
+
+#ifdef IM_DEBUG_INT
+ printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n",
+ cmd->cmnd[0], intr_reg,
+ ld(ihost_index)[ldn].tsb.dev_status,
+ ld(ihost_index)[ldn].tsb.cmd_status,
+ ld(ihost_index)[ldn].tsb.dev_error,
+ ld(ihost_index)[ldn].tsb.cmd_error);
+#endif
+ /*if this is end of media read/write, may turn off PS/2 disk led */
+ if ((ld(ihost_index)[ldn].device_type!=TYPE_NO_LUN)&&
+ (ld(ihost_index)[ldn].device_type!=TYPE_NO_DEVICE)) {
+ /* only access this, if there was a valid device addressed */
+ if (--disk_rw_in_progress == 0) PS2_DISK_LED_OFF ();
+ }
+
+ /* IBM describes the status-mask to be 0x1e, but this is not conform
+ * with SCSI-definition, I suppose, the reason for it is that IBM
+ * adapters do not support CMD_TERMINATED, TASK_SET_FULL and
+ * ACA_ACTIVE as returning statusbyte information. (ML) */
+ if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
+ cmd->result = (unsigned char)(ld(ihost_index)[ldn].tsb.dev_status & 0x1e);
+ IBM_DS(ihost_index).total_errors++;
+ } else
+ cmd->result = 0;
+ /* write device status into cmd->result, and call done function */
+ if (lastSCSI == NO_SCSI) { /* unexpected interrupt :-( */
+ cmd->result |= DID_BAD_INTR << 16;
+ printk("IBM MCA SCSI: WARNING - Interrupt from non-pending SCSI-command!\n");
+ } else /* things went right :-) */
+ cmd->result |= DID_OK << 16;
+ if (cmd->scsi_done) (cmd->scsi_done)(cmd);
return;
}
-/*--------------------------------------------------------------------*/
-
-static void issue_cmd (int host_index, unsigned long cmd_reg,
+static void issue_cmd (int host_index, unsigned long cmd_reg,
unsigned char attn_reg)
{
- static unsigned long flags;
- /* must wait for attention reg not busy */
- while (1)
- {
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&issue_lock, flags);
-#endif
- if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY))
- break;
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&issue_lock, flags);
-#endif
- }
- /*write registers and enable system interrupts */
+ unsigned long flags;
+ /* must wait for attention reg not busy */
+ while (1) {
+ IBMLOCK
+ if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) break;
+ IBMUNLOCK
+ }
+ /* write registers and enable system interrupts */
outl (cmd_reg, IM_CMD_REG(host_index));
outb (attn_reg, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&issue_lock, flags);
-#endif
+ IBMUNLOCK
return;
}
-/*--------------------------------------------------------------------*/
-
static void internal_done (Scsi_Cmnd * cmd)
{
cmd->SCp.Status++;
return;
}
-/*--------------------------------------------------------------------*/
-
/* SCSI-SCB-command for device_inquiry */
static int device_inquiry(int host_index, int ldn)
-{
+{
int retries;
- Scsi_Cmnd cmd;
struct im_scb *scb;
struct im_tsb *tsb;
unsigned char *buf;
-
+
scb = &(ld(host_index)[ldn].scb);
tsb = &(ld(host_index)[ldn].tsb);
buf = (unsigned char *)(&(ld(host_index)[ldn].buf));
- ld(host_index)[ldn].tsb.dev_status = 0; /* prepare stusblock */
-
- if (bypass_controller)
- { /* fill the commonly known field for device-inquiry SCSI cmnd */
- cmd.cmd_len = 6;
- memset (&(cmd.cmnd), 0x0, sizeof(char) * cmd.cmd_len);
- cmd.cmnd[0] = INQUIRY; /* device inquiry */
- cmd.cmnd[4] = 0xff; /* return buffer size = 255 */
- }
- for (retries = 0; retries < 3; retries++)
- {
- if (bypass_controller)
- { /* bypass the hardware integrated command set */
- scb->command = IM_OTHER_SCSI_CMD_CMD | IM_NO_DISCONNECT;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd.cmd_len;
- memcpy (scb->u2.scsi_command, &(cmd.cmnd), cmd.cmd_len);
- last_scsi_command(host_index)[ldn] = INQUIRY;
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- {
- /*fill scb with inquiry command */
- scb->command = IM_DEVICE_INQUIRY_CMD | IM_NO_DISCONNECT;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT;
- last_scsi_command(host_index)[ldn] = IM_DEVICE_INQUIRY_CMD;
- last_scsi_type(host_index)[ldn] = IM_SCB;
- }
- scb->sys_buf_adr = virt_to_bus(buf);
- scb->sys_buf_length = 0xff; /* maximum bufferlength gives max info */
- scb->tsb_adr = virt_to_bus(tsb);
-
- /*issue scb to passed ldn, and busy wait for interrupt */
- got_interrupt(host_index) = 0;
- if ((scb->command & IM_OTHER_SCSI_CMD_CMD) == IM_OTHER_SCSI_CMD_CMD)
- issue_cmd (host_index, virt_to_bus(scb), IM_LONG_SCB | ldn);
- else
- issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
- while (!got_interrupt(host_index))
- barrier ();
-
- /*if command succesful, break */
- if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
- (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
-
+ ld(host_index)[ldn].tsb.dev_status = 0; /* prepare statusblock */
+ for (retries = 0; retries < 3; retries++) {
+ /* fill scb with inquiry command */
+ scb->command = IM_DEVICE_INQUIRY_CMD | IM_NO_DISCONNECT;
+ scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
+ last_scsi_command(host_index)[ldn] = IM_DEVICE_INQUIRY_CMD;
+ last_scsi_type(host_index)[ldn] = IM_SCB;
+ scb->sys_buf_adr = virt_to_bus(buf);
+ scb->sys_buf_length = 0xff; /* maximum bufferlength gives max info */
+ scb->tsb_adr = virt_to_bus(tsb);
+ /* issue scb to passed ldn, and busy wait for interrupt */
+ got_interrupt(host_index) = 0;
+ issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
+ while (!got_interrupt(host_index))
+ barrier ();
+
+ /*if command succesful, break */
+ if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
+ (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
+ return 1;
+ }
/*if all three retries failed, return "no device at this ldn" */
if (retries >= 3)
return 0;
@@ -1044,59 +789,34 @@
static int read_capacity(int host_index, int ldn)
{
int retries;
- Scsi_Cmnd cmd;
struct im_scb *scb;
struct im_tsb *tsb;
unsigned char *buf;
-
+
scb = &(ld(host_index)[ldn].scb);
tsb = &(ld(host_index)[ldn].tsb);
buf = (unsigned char *)(&(ld(host_index)[ldn].buf));
ld(host_index)[ldn].tsb.dev_status = 0;
-
- if (bypass_controller)
- { /* read capacity in commonly known default SCSI-format */
- cmd.cmd_len = 10;
- memset (&(cmd.cmnd), 0x0, sizeof(char) * cmd.cmd_len);
- cmd.cmnd[0] = READ_CAPACITY; /* read capacity */
- }
- for (retries = 0; retries < 3; retries++)
- {
- /*fill scb with read capacity command */
- if (bypass_controller)
- { /* bypass the SCSI-command */
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd.cmd_len;
- memcpy (scb->u2.scsi_command, &(cmd.cmnd), cmd.cmd_len);
- last_scsi_command(host_index)[ldn] = READ_CAPACITY;
- last_scsi_type(host_index)[ldn] = IM_SCB;
- }
- else
- {
- scb->command = IM_READ_CAPACITY_CMD;
- scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT;
- last_scsi_command(host_index)[ldn] = IM_READ_CAPACITY_CMD;
- last_scsi_type(host_index)[ldn] = IM_SCB;
- }
- scb->sys_buf_adr = virt_to_bus(buf);
- scb->sys_buf_length = 8;
- scb->tsb_adr = virt_to_bus(tsb);
-
- /*issue scb to passed ldn, and busy wait for interrupt */
- got_interrupt(host_index) = 0;
- if ((scb->command & IM_OTHER_SCSI_CMD_CMD) == IM_OTHER_SCSI_CMD_CMD)
- issue_cmd (host_index, virt_to_bus(scb), IM_LONG_SCB | ldn);
- else
- issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
- while (!got_interrupt(host_index))
- barrier ();
-
- /*if got capacity, get block length and return one device found */
- if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
- (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
+ for (retries = 0; retries < 3; retries++) {
+ /*fill scb with read capacity command */
+ scb->command = IM_READ_CAPACITY_CMD;
+ scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
+ last_scsi_command(host_index)[ldn] = IM_READ_CAPACITY_CMD;
+ last_scsi_type(host_index)[ldn] = IM_SCB;
+ scb->sys_buf_adr = virt_to_bus(buf);
+ scb->sys_buf_length = 8;
+ scb->tsb_adr = virt_to_bus(tsb);
+ /*issue scb to passed ldn, and busy wait for interrupt */
+ got_interrupt(host_index) = 0;
+ issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
+ while (!got_interrupt(host_index))
+ barrier ();
+
+ /*if got capacity, get block length and return one device found */
+ if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
+ (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
+ return 1;
+ }
/*if all three retries failed, return "no device at this ldn" */
if (retries >= 3)
return 0;
@@ -1110,39 +830,34 @@
struct im_scb *scb;
struct im_tsb *tsb;
unsigned char *buf;
-
+
scb = &(ld(host_index)[MAX_LOG_DEV].scb);
tsb = &(ld(host_index)[MAX_LOG_DEV].tsb);
buf = (unsigned char *)(&(ld(host_index)[MAX_LOG_DEV].buf));
ld(host_index)[MAX_LOG_DEV].tsb.dev_status = 0;
-
- for (retries = 0; retries < 3; retries++)
- {
- /*fill scb with get_pos_info command */
- scb->command = IM_GET_POS_INFO_CMD;
- scb->enable = IM_READ_CONTROL | IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE | IM_BYPASS_BUFFER | IM_SUPRESS_EXCEPTION_SHORT;
- last_scsi_command(host_index)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD;
- last_scsi_type(host_index)[MAX_LOG_DEV] = IM_SCB;
-
- scb->sys_buf_adr = virt_to_bus(buf);
- if (special(host_index)==IBM_SCSI2_FW)
- scb->sys_buf_length = 256; /* get all info from F/W adapter */
- else
- scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */
-
- scb->tsb_adr = virt_to_bus(tsb);
-
- /*issue scb to ldn=15, and busy wait for interrupt */
- got_interrupt(host_index) = 0;
- issue_cmd (host_index, virt_to_bus(scb), IM_SCB | MAX_LOG_DEV);
- while (!got_interrupt(host_index))
- barrier ();
-
- /*if got POS-stuff, get block length and return one device found */
- if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
- (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
- return 1;
- }
+ for (retries = 0; retries < 3; retries++) {
+ /*fill scb with get_pos_info command */
+ scb->command = IM_GET_POS_INFO_CMD;
+ scb->enable = IM_READ_CONTROL | IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE | IM_BYPASS_BUFFER;
+ last_scsi_command(host_index)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD;
+ last_scsi_type(host_index)[MAX_LOG_DEV] = IM_SCB;
+ scb->sys_buf_adr = virt_to_bus(buf);
+ if (special(host_index)==IBM_SCSI2_FW)
+ scb->sys_buf_length = 256; /* get all info from F/W adapter */
+ else
+ scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */
+ scb->tsb_adr = virt_to_bus(tsb);
+ /*issue scb to ldn=15, and busy wait for interrupt */
+ got_interrupt(host_index) = 0;
+ issue_cmd (host_index, virt_to_bus(scb), IM_SCB | MAX_LOG_DEV);
+ while (!got_interrupt(host_index))
+ barrier ();
+
+ /*if got POS-stuff, get block length and return one device found */
+ if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED)||
+ (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
+ return 1;
+ }
/* if all three retries failed, return "no device at this ldn" */
if (retries >= 3)
return 0;
@@ -1153,92 +868,80 @@
/* SCSI-immediate-command for assign. This functions maps/unmaps specific
ldn-numbers on SCSI (PUN,LUN). It is needed for presetting of the
subsystem and for dynamical remapping od ldns. */
-static int immediate_assign(int host_index, unsigned int pun,
- unsigned int lun, unsigned int ldn,
+static int immediate_assign(int host_index, unsigned int pun,
+ unsigned int lun, unsigned int ldn,
unsigned int operation)
{
int retries;
unsigned long imm_command;
-
- for (retries=0; retries<3; retries ++)
- {
- /* select mutation level of the SCSI-adapter */
- switch (special(host_index))
- {
- case IBM_SCSI2_FW:
- imm_command = (unsigned long)(IM_ASSIGN_IMM_CMD);
- imm_command |= (unsigned long)((lun & 7) << 24);
- imm_command |= (unsigned long)((operation & 1) << 23);
- imm_command |= (unsigned long)((pun & 7)<< 20)|((pun & 8)<< 24);
- imm_command |= (unsigned long)((ldn & 15) << 16);
- break;
- default:
- imm_command = inl(IM_CMD_REG(host_index));
- imm_command &= (unsigned long)(0xF8000000); /* keep reserved bits */
- imm_command |= (unsigned long)(IM_ASSIGN_IMM_CMD);
- imm_command |= (unsigned long)((lun & 7) << 24);
- imm_command |= (unsigned long)((operation & 1) << 23);
- imm_command |= (unsigned long)((pun & 7) << 20);
- imm_command |= (unsigned long)((ldn & 15) << 16);
- break;
- }
- last_scsi_command(host_index)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD;
- last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD;
- got_interrupt(host_index) = 0;
- issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | MAX_LOG_DEV);
- while (!got_interrupt(host_index))
- barrier ();
-
- /*if command succesful, break */
- if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
- if (retries >= 3)
+
+ for (retries=0; retries<3; retries ++) {
+ /* select mutation level of the SCSI-adapter */
+ switch (special(host_index)) {
+ case IBM_SCSI2_FW:
+ imm_command = (unsigned long)(IM_ASSIGN_IMM_CMD);
+ imm_command |= (unsigned long)((lun & 7) << 24);
+ imm_command |= (unsigned long)((operation & 1) << 23);
+ imm_command |= (unsigned long)((pun & 7)<< 20)|((pun & 8)<< 24);
+ imm_command |= (unsigned long)((ldn & 15) << 16);
+ break;
+ default:
+ imm_command = inl(IM_CMD_REG(host_index));
+ imm_command &= (unsigned long)(0xF8000000); /* keep reserved bits */
+ imm_command |= (unsigned long)(IM_ASSIGN_IMM_CMD);
+ imm_command |= (unsigned long)((lun & 7) << 24);
+ imm_command |= (unsigned long)((operation & 1) << 23);
+ imm_command |= (unsigned long)((pun & 7) << 20);
+ imm_command |= (unsigned long)((ldn & 15) << 16);
+ break;
+ }
+ last_scsi_command(host_index)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD;
+ last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD;
+ got_interrupt(host_index) = 0;
+ issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | MAX_LOG_DEV);
+ while (!got_interrupt(host_index))
+ barrier ();
+
+ /*if command succesful, break */
+ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
+ return 1;
+ }
+ if (retries >= 3)
return 0;
else
return 1;
}
-static int immediate_feature(int host_index, unsigned int speed,
+static int immediate_feature(int host_index, unsigned int speed,
unsigned int timeout)
{
int retries;
unsigned long imm_command;
-
- for (retries=0; retries<3; retries ++)
- {
- /* select mutation level of the SCSI-adapter */
- switch (special(host_index))
- {
- default:
- imm_command = IM_FEATURE_CTR_IMM_CMD;
- imm_command |= (unsigned long)((speed & 0x7) << 29);
- imm_command |= (unsigned long)((timeout & 0x1fff) << 16);
- break;
- }
- last_scsi_command(host_index)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD;
- last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD;
- got_interrupt(host_index) = 0;
- /* we need to run into command errors in order to probe for the
- * right speed! */
- global_command_error_excuse = 1;
- issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | MAX_LOG_DEV);
- while (!got_interrupt(host_index))
- barrier ();
- if (global_command_error_excuse == CMD_FAIL)
- {
- global_command_error_excuse = 0;
- return 2;
- }
- else
- global_command_error_excuse = 0;
-
- /*if command succesful, break */
- if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
-
- if (retries >= 3)
+
+ for (retries=0; retries<3; retries ++) {
+ /* select mutation level of the SCSI-adapter */
+ imm_command = IM_FEATURE_CTR_IMM_CMD;
+ imm_command |= (unsigned long)((speed & 0x7) << 29);
+ imm_command |= (unsigned long)((timeout & 0x1fff) << 16);
+ last_scsi_command(host_index)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD;
+ last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD;
+ got_interrupt(host_index) = 0;
+ /* we need to run into command errors in order to probe for the
+ * right speed! */
+ global_command_error_excuse = 1;
+ issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | MAX_LOG_DEV);
+ while (!got_interrupt(host_index))
+ barrier ();
+ if (global_command_error_excuse == CMD_FAIL) {
+ global_command_error_excuse = 0;
+ return 2;
+ } else
+ global_command_error_excuse = 0;
+ /*if command succesful, break */
+ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
+ return 1;
+ }
+ if (retries >= 3)
return 0;
else
return 1;
@@ -1250,39 +953,34 @@
int retries;
int ticks;
unsigned long imm_command;
-
- for (retries=0; retries<3; retries ++)
- {
- imm_command = inl(IM_CMD_REG(host_index));
- imm_command &= (unsigned long)(0xFFFF0000); /* keep reserved bits */
- imm_command |= (unsigned long)(IM_RESET_IMM_CMD);
- last_scsi_command(host_index)[ldn] = IM_RESET_IMM_CMD;
- last_scsi_type(host_index)[ldn] = IM_IMM_CMD;
-
- got_interrupt(host_index) = 0;
- reset_status(host_index) = IM_RESET_IN_PROGRESS;
- issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | ldn);
- ticks = IM_RESET_DELAY*HZ;
- while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks)
- {
- mdelay(1+999/HZ);
- barrier();
- }
- /* if reset did not complete, just claim */
- if (!ticks)
- {
- printk("IBM MCA SCSI: reset did not complete within %d seconds.\n",
- IM_RESET_DELAY);
- reset_status(host_index) = IM_RESET_FINISHED_OK;
- /* did not work, finish */
- return 1;
- }
- /*if command succesful, break */
- if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
- return 1;
- }
-
- if (retries >= 3)
+
+ for (retries=0; retries<3; retries ++) {
+ imm_command = inl(IM_CMD_REG(host_index));
+ imm_command &= (unsigned long)(0xFFFF0000); /* keep reserved bits */
+ imm_command |= (unsigned long)(IM_RESET_IMM_CMD);
+ last_scsi_command(host_index)[ldn] = IM_RESET_IMM_CMD;
+ last_scsi_type(host_index)[ldn] = IM_IMM_CMD;
+ got_interrupt(host_index) = 0;
+ reset_status(host_index) = IM_RESET_IN_PROGRESS;
+ issue_cmd (host_index, (unsigned long)(imm_command), IM_IMM_CMD | ldn);
+ ticks = IM_RESET_DELAY*HZ;
+ while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks) {
+ udelay((1+999/HZ)*1000);
+ barrier();
+ }
+ /* if reset did not complete, just complain */
+ if (!ticks) {
+ printk("IBM MCA SCSI: reset did not complete within %d seconds.\n",
+ IM_RESET_DELAY);
+ reset_status(host_index) = IM_RESET_FINISHED_OK;
+ /* did not work, finish */
+ return 1;
+ }
+ /*if command succesful, break */
+ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED)
+ return 1;
+ }
+ if (retries >= 3)
return 0;
else
return 1;
@@ -1292,21 +990,20 @@
/* type-interpreter for physical device numbers */
static char *ti_p(int value)
{
- switch (value)
- {
- case TYPE_IBM_SCSI_ADAPTER: return("A"); break;
- case TYPE_DISK: return("D"); break;
- case TYPE_TAPE: return("T"); break;
- case TYPE_PROCESSOR: return("P"); break;
- case TYPE_WORM: return("W"); break;
- case TYPE_ROM: return("R"); break;
- case TYPE_SCANNER: return("S"); break;
- case TYPE_MOD: return("M"); break;
- case TYPE_MEDIUM_CHANGER: return("C"); break;
- case TYPE_NO_LUN: return("+"); break; /* show NO_LUN */
- case TYPE_NO_DEVICE:
- default: return("-"); break;
- }
+ switch (value) {
+ case TYPE_IBM_SCSI_ADAPTER: return("A"); break;
+ case TYPE_DISK: return("D"); break;
+ case TYPE_TAPE: return("T"); break;
+ case TYPE_PROCESSOR: return("P"); break;
+ case TYPE_WORM: return("W"); break;
+ case TYPE_ROM: return("R"); break;
+ case TYPE_SCANNER: return("S"); break;
+ case TYPE_MOD: return("M"); break;
+ case TYPE_MEDIUM_CHANGER: return("C"); break;
+ case TYPE_NO_LUN: return("+"); break; /* show NO_LUN */
+ case TYPE_NO_DEVICE:
+ default: return("-"); break;
+ }
return("-");
}
@@ -1315,32 +1012,25 @@
{
const char hex[16] = "0123456789abcdef";
static char answer[2];
-
+
answer[1] = (char)(0x0);
- if (value<=MAX_LOG_DEV)
- answer[0] = hex[value];
- else
- answer[0] = '-';
-
+ if (value<=MAX_LOG_DEV) answer[0] = hex[value]; else answer[0] = '-';
return (char *)&answer;
}
/* transfers bitpattern of the feature command to values in MHz */
-static char *ibmrate(unsigned int speed, int adaptertype)
+static char *ibmrate(unsigned int speed, int i)
{
- int i;
- i=adaptertype;
- switch (speed)
- {
- case 0: if (i) return "5.00"; else return "10.00"; break;
- case 1: if (i) return "4.00"; else return "8.00"; break;
- case 2: if (i) return "3.33"; else return "6.66"; break;
- case 3: if (i) return "2.86"; else return "5.00"; break;
- case 4: if (i) return "2.50"; else return "4.00"; break;
- case 5: if (i) return "2.22"; else return "3.10"; break;
- case 6: if (i) return "2.00"; else return "2.50"; break;
- case 7: if (i) return "1.82"; else return "2.00"; break;
- }
+ switch (speed) {
+ case 0: if (i) return "5.00"; else return "10.00"; break;
+ case 1: if (i) return "4.00"; else return "8.00"; break;
+ case 2: if (i) return "3.33"; else return "6.66"; break;
+ case 3: if (i) return "2.86"; else return "5.00"; break;
+ case 4: if (i) return "2.50"; else return "4.00"; break;
+ case 5: if (i) return "2.22"; else return "3.10"; break;
+ case 6: if (i) return "2.00"; else return "2.50"; break;
+ case 7: if (i) return "1.82"; else return "2.00"; break;
+ }
return "---";
}
@@ -1348,29 +1038,21 @@
{
static int rotator = 0;
const char rotor[] = "|/-\\";
-
+
if (!(display_mode & LED_DISP))
return 0;
- if (!what)
- {
- outl(0x20202020,MOD95_LED_PORT);
- outl(0x20202020,MOD95_LED_PORT+4);
- }
- else
- {
- outb('S',MOD95_LED_PORT+7);
- outb('C',MOD95_LED_PORT+6);
- outb('S',MOD95_LED_PORT+5);
- outb('I',MOD95_LED_PORT+4);
- outb('i',MOD95_LED_PORT+3);
- outb('n',MOD95_LED_PORT+2);
- outb('i',MOD95_LED_PORT+1);
- outb((char)(rotor[rotator]),MOD95_LED_PORT);
- rotator++;
- if (rotator>3)
- rotator=0;
- }
- return 0;
+ if (!what) {
+ outl(0x20202020,MOD95_LED_PORT);
+ outl(0x20202020,MOD95_LED_PORT+4);
+ } else {
+ outb('S',MOD95_LED_PORT+7); outb('C',MOD95_LED_PORT+6);
+ outb('S',MOD95_LED_PORT+5); outb('I',MOD95_LED_PORT+4);
+ outb('i',MOD95_LED_PORT+3); outb('n',MOD95_LED_PORT+2);
+ outb('i',MOD95_LED_PORT+1); outb((char)(rotor[rotator]),MOD95_LED_PORT);
+ rotator++;
+ if (rotator>3) rotator=0;
+ }
+ return 0;
}
static int probe_bus_mode(int host_index)
@@ -1378,64 +1060,39 @@
struct im_pos_info *info;
int num_bus = 0;
int ldn;
-
+
info = (struct im_pos_info *)(&(ld(host_index)[MAX_LOG_DEV].buf));
-
- if (get_pos_info(host_index))
- {
- if (info->connector_size & 0xf000)
- subsystem_connector_size(host_index)=16;
- else
- subsystem_connector_size(host_index)=32;
- num_bus |= (info->pos_4b & 8) >> 3;
- for (ldn=0; ldn<=MAX_LOG_DEV; ldn++)
- {
- if ((special(host_index)==IBM_SCSI_WCACHE)||
- (special(host_index)==IBM_7568_WCACHE))
- {
- if (!((info->cache_stat >> ldn) & 1))
- ld(host_index)[ldn].cache_flag = 0;
- }
- if (!((info->retry_stat >> ldn) & 1))
- ld(host_index)[ldn].retry_flag = 0;
- }
-#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: SCSI-Cache bits: ");
- for (ldn=0; ldn<=MAX_LOG_DEV; ldn++)
- {
- printk("%d",ld(host_index)[ldn].cache_flag);
- }
- printk("\nIBM MCA SCSI: SCSI-Retry bits: ");
- for (ldn=0; ldn<=MAX_LOG_DEV; ldn++)
- {
- printk("%d",ld(host_index)[ldn].retry_flag);
- }
- printk("\n");
-#endif
- }
+ if (get_pos_info(host_index)) {
+ if (info->connector_size & 0xf000)
+ subsystem_connector_size(host_index)=16;
+ else
+ subsystem_connector_size(host_index)=32;
+ num_bus |= (info->pos_4b & 8) >> 3;
+ for (ldn=0; ldn<=MAX_LOG_DEV; ldn++) {
+ if ((special(host_index)==IBM_SCSI_WCACHE)||
+ (special(host_index)==IBM_7568_WCACHE)) {
+ if (!((info->cache_stat >> ldn) & 1))
+ ld(host_index)[ldn].cache_flag = 0;
+ }
+ if (!((info->retry_stat >> ldn) & 1))
+ ld(host_index)[ldn].retry_flag = 0;
+ }
+#ifdef IM_DEBUG_PROBE
+ printk("IBM MCA SCSI: SCSI-Cache bits: ");
+ for (ldn=0; ldn<=MAX_LOG_DEV; ldn++) {
+ printk("%d",ld(host_index)[ldn].cache_flag);
+ }
+ printk("\nIBM MCA SCSI: SCSI-Retry bits: ");
+ for (ldn=0; ldn<=MAX_LOG_DEV; ldn++) {
+ printk("%d",ld(host_index)[ldn].retry_flag);
+ }
+ printk("\n");
+#endif
+ }
return num_bus;
}
-/*
- The following routine probes the SCSI-devices in four steps:
- 1. The current ldn -> pun,lun mapping is removed on the SCSI-adapter.
- 2. ldn 0 is used to go through all possible combinations of pun,lun and
- a device_inquiry is done to fiddle out whether there is a device
- responding or not. This physical map is stored in get_scsi[][].
- 3. The 15 available ldns (0-14) are mapped to existing pun,lun.
- If there are more devices than ldns, it stops at 14 for the boot
- time. Dynamical remapping will be done in ibmmca_queuecommand.
- 4. If there are less than 15 valid pun,lun, the remaining ldns are
- mapped to NON-existing pun,lun to satisfy the adapter. Information
- about pun,lun -> ldn is stored as before in get_ldn[][].
- This method leads to the result, that the SCSI-pun,lun shown to Linux
- mid-level- and higher-level-drivers is exactly corresponding to the
- physical reality on the SCSI-bus. Therefore, it is possible that users
- of older releases of this driver have to rewrite their fstab-file, because
- the /dev/sdXXX could have changed due to the right pun,lun report, now.
- The assignment of ALL ldns avoids dynamical remapping by the adapter
- itself.
- */
+/* probing scsi devices */
static void check_devices (int host_index, int adaptertype)
{
int id, lun, ldn, ticks;
@@ -1443,7 +1100,7 @@
int max_pun;
int num_bus;
int speedrun; /* local adapter_speed check variable */
-
+
/* assign default values to certain variables */
ticks = 0;
count_devices = 0;
@@ -1452,95 +1109,83 @@
next_ldn(host_index) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired'*/
/* initialize the very important driver-informational arrays/structs */
- memset (ld(host_index), 0,
- sizeof(ld(host_index)));
- for (ldn=0; ldn<=MAX_LOG_DEV; ldn++)
- {
- last_scsi_command(host_index)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */
- last_scsi_type(host_index)[ldn] = 0;
- ld(host_index)[ldn].cache_flag = 1;
- ld(host_index)[ldn].retry_flag = 1;
- }
- memset (get_ldn(host_index), TYPE_NO_DEVICE,
- sizeof(get_ldn(host_index))); /* this is essential ! */
- memset (get_scsi(host_index), TYPE_NO_DEVICE,
- sizeof(get_scsi(host_index))); /* this is essential ! */
-
- for (lun=0; lun<8; lun++) /* mark the adapter at its pun on all luns*/
- {
- get_scsi(host_index)[subsystem_pun(host_index)][lun] = TYPE_IBM_SCSI_ADAPTER;
- get_ldn(host_index)[subsystem_pun(host_index)][lun] = MAX_LOG_DEV; /* make sure, the subsystem
- ldn is active for all
- luns. */
- }
-
+ memset (ld(host_index), 0, sizeof(ld(host_index)));
+ for (ldn=0; ldn<=MAX_LOG_DEV; ldn++) {
+ last_scsi_command(host_index)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */
+ last_scsi_type(host_index)[ldn] = 0;
+ ld(host_index)[ldn].cache_flag = 1;
+ ld(host_index)[ldn].retry_flag = 1;
+ }
+ memset (get_ldn(host_index), TYPE_NO_DEVICE, sizeof(get_ldn(host_index))); /* this is essential ! */
+ memset (get_scsi(host_index), TYPE_NO_DEVICE, sizeof(get_scsi(host_index))); /* this is essential ! */
+ for (lun=0; lun<8; lun++) {
+ /* mark the adapter at its pun on all luns*/
+ get_scsi(host_index)[subsystem_pun(host_index)][lun] = TYPE_IBM_SCSI_ADAPTER;
+ get_ldn(host_index)[subsystem_pun(host_index)][lun] = MAX_LOG_DEV; /* make sure, the subsystem
+ ldn is active for all
+ luns. */
+ }
probe_display(0); /* Supercool display usage during SCSI-probing. */
/* This makes sense, when booting without any */
/* monitor connected on model XX95. */
-
+
/* STEP 1: */
adapter_speed(host_index) = global_adapter_speed;
speedrun = adapter_speed(host_index);
- while (immediate_feature(host_index,speedrun,adapter_timeout)==2)
- {
- probe_display(1);
- if (speedrun==7)
- panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n");
- speedrun++;
- if (speedrun>7)
- speedrun=7;
- }
+ while (immediate_feature(host_index,speedrun,adapter_timeout)==2) {
+ probe_display(1);
+ if (speedrun==7)
+ panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n");
+ speedrun++;
+ if (speedrun>7)
+ speedrun=7;
+ }
adapter_speed(host_index) = speedrun;
/* Get detailed information about the current adapter, necessary for
* device operations: */
num_bus=probe_bus_mode(host_index);
-
+
/* num_bus contains only valid data for the F/W adapter! */
- if (adaptertype==IBM_SCSI2_FW) /* F/W SCSI adapter: */
- {
- /* F/W adapter PUN-space extension evaluation: */
- if (num_bus)
- {
- printk("IBM MCA SCSI: Seperate bus mode (wide-addressing enabled)\n");
- subsystem_maxid(host_index) = 16;
- }
- else
- {
- printk("IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n");
- subsystem_maxid(host_index) = 8;
- }
- printk("IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n",
- ibmrate(speedrun,adaptertype));
- }
- else /* all other IBM SCSI adapters: */
+ if (adaptertype==IBM_SCSI2_FW) { /* F/W SCSI adapter: */
+ /* F/W adapter PUN-space extension evaluation: */
+ if (num_bus) {
+ printk("IBM MCA SCSI: Seperate bus mode (wide-addressing enabled)\n");
+ subsystem_maxid(host_index) = 16;
+ } else {
+ printk("IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n");
+ subsystem_maxid(host_index) = 8;
+ }
+ printk("IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n",
+ ibmrate(speedrun,adaptertype));
+ } else /* all other IBM SCSI adapters: */
printk("IBM MCA SCSI: Synchronous-SCSI-Transfer-Rate: %s MBytes/s\n",
ibmrate(speedrun,adaptertype));
-
+
/* assign correct PUN device space */
max_pun = subsystem_maxid(host_index);
-
+
#ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Current SCSI-host index: %d\n",host_index);
-#endif
printk("IBM MCA SCSI: Removing default logical SCSI-device mapping.");
- for (ldn=0; ldn<MAX_LOG_DEV; ldn++)
- {
- probe_display(1);
+#else
+ printk("IBM MCA SCSI: Dev. Order: %s, Mapping (takes <2min): ",
+ (ibm_ansi_order) ? "ANSI" : "New");
+#endif
+ for (ldn=0; ldn<MAX_LOG_DEV; ldn++) {
+ probe_display(1);
#ifdef IM_DEBUG_PROBE
- printk(".");
+ printk(".");
#endif
- immediate_assign(host_index,0,0,ldn,REMOVE_LDN); /* remove ldn (wherever)*/
- }
-
+ immediate_assign(host_index,0,0,ldn,REMOVE_LDN); /* remove ldn (wherever)*/
+ }
lun = 0; /* default lun is 0 */
-
- /* STEP 2: */
- printk("\nIBM MCA SCSI: Probing SCSI-devices");
#ifndef IM_DEBUG_PROBE
- printk(" (this can take up to 2 minutes)");
+ printk("cleared,");
+#endif
+ /* STEP 2: */
+#ifdef IM_DEBUG_PROBE
+ printk("\nIBM MCA SCSI: Scanning SCSI-devices.");
#endif
- printk(".");
-
for (id=0; id<max_pun ; id++)
#ifdef CONFIG_SCSI_MULTI_LUN
for (lun=0; lun<8; lun++)
@@ -1550,460 +1195,369 @@
#ifdef IM_DEBUG_PROBE
printk(".");
#endif
- if (id != subsystem_pun(host_index))
- { /* if pun is not the adapter: */
- /*set ldn=0 to pun,lun*/
- immediate_assign(host_index,id,lun,PROBE_LDN,SET_LDN);
- if (device_inquiry(host_index, PROBE_LDN)) /* probe device */
- {
- get_scsi(host_index)[id][lun]=
- (unsigned char)(ld(host_index)[PROBE_LDN].buf[0]);
- /* entry, even for NO_LUN */
- if (ld(host_index)[PROBE_LDN].buf[0] != TYPE_NO_LUN)
- count_devices++; /* a existing device is found */
- }
- /* remove ldn */
- immediate_assign(host_index,id,lun,PROBE_LDN,REMOVE_LDN);
- }
+ if (id != subsystem_pun(host_index)) {
+ /* if pun is not the adapter: */
+ /* set ldn=0 to pun,lun*/
+ immediate_assign(host_index,id,lun,PROBE_LDN,SET_LDN);
+ if (device_inquiry(host_index, PROBE_LDN)) { /* probe device */
+ get_scsi(host_index)[id][lun]=
+ (unsigned char)(ld(host_index)[PROBE_LDN].buf[0]);
+ /* entry, even for NO_LUN */
+ if (ld(host_index)[PROBE_LDN].buf[0] != TYPE_NO_LUN)
+ count_devices++; /* a existing device is found */
+ }
+ /* remove ldn */
+ immediate_assign(host_index,id,lun,PROBE_LDN,REMOVE_LDN);
+ }
}
-
- /* STEP 3: */
+#ifndef IM_DEBUG_PROBE
+ printk("scanned,");
+#endif
+ /* STEP 3: */
+#ifdef IM_DEBUG_PROBE
printk("\nIBM MCA SCSI: Mapping SCSI-devices.");
-
+#endif
ldn = 0;
lun = 0;
-
-#ifdef CONFIG_SCSI_MULTI_LUN
+#ifdef CONFIG_SCSI_MULTI_LUN
for (lun=0; lun<8 && ldn<MAX_LOG_DEV; lun++)
#endif
- for (id=0; id<max_pun && ldn<MAX_LOG_DEV; id++)
- {
+ for (id=0; id<max_pun && ldn<MAX_LOG_DEV; id++) {
probe_display(1);
#ifdef IM_DEBUG_PROBE
printk(".");
#endif
- if (id != subsystem_pun(host_index))
- {
- if (get_scsi(host_index)[id][lun] != TYPE_NO_LUN &&
- get_scsi(host_index)[id][lun] != TYPE_NO_DEVICE)
- {
- /* Only map if accepted type. Always enter for
- lun == 0 to get no gaps into ldn-mapping for ldn<7. */
- immediate_assign(host_index,id,lun,ldn,SET_LDN);
- get_ldn(host_index)[id][lun]=ldn; /* map ldn */
- if (device_exists (host_index, ldn,
- &ld(host_index)[ldn].block_length,
- &ld(host_index)[ldn].device_type))
- {
+ if (id != subsystem_pun(host_index)) {
+ if (get_scsi(host_index)[id][lun] != TYPE_NO_LUN &&
+ get_scsi(host_index)[id][lun] != TYPE_NO_DEVICE) {
+ /* Only map if accepted type. Always enter for
+ lun == 0 to get no gaps into ldn-mapping for ldn<7. */
+ immediate_assign(host_index,id,lun,ldn,SET_LDN);
+ get_ldn(host_index)[id][lun]=ldn; /* map ldn */
+ if (device_exists (host_index, ldn,
+ &ld(host_index)[ldn].block_length,
+ &ld(host_index)[ldn].device_type)) {
#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
- printk("resetting device at ldn=%x ... ",ldn);
- immediate_reset(host_index,ldn);
+ printk("resetting device at ldn=%x ... ",ldn);
+ immediate_reset(host_index,ldn);
#endif
- ldn++;
- }
- else
- {
- /* device vanished, probably because we don't know how to
- * handle it or because it has problems */
- if (lun > 0)
- {
- /* remove mapping */
- get_ldn(host_index)[id][lun]=TYPE_NO_DEVICE;
- immediate_assign(host_index,0,0,ldn,REMOVE_LDN);
- }
- else ldn++;
- }
- }
- else if (lun == 0)
- {
- /* map lun == 0, even if no device exists */
- immediate_assign(host_index,id,lun,ldn,SET_LDN);
- get_ldn(host_index)[id][lun]=ldn; /* map ldn */
- ldn++;
- }
- }
+ ldn++;
+ } else {
+ /* device vanished, probably because we don't know how to
+ * handle it or because it has problems */
+ if (lun > 0) {
+ /* remove mapping */
+ get_ldn(host_index)[id][lun]=TYPE_NO_DEVICE;
+ immediate_assign(host_index,0,0,ldn,REMOVE_LDN);
+ } else ldn++;
+ }
+ } else if (lun == 0) {
+ /* map lun == 0, even if no device exists */
+ immediate_assign(host_index,id,lun,ldn,SET_LDN);
+ get_ldn(host_index)[id][lun]=ldn; /* map ldn */
+ ldn++;
+ }
+ }
}
-
/* STEP 4: */
-
+
/* map remaining ldns to non-existing devices */
for (lun=1; lun<8 && ldn<MAX_LOG_DEV; lun++)
- for (id=0; id<max_pun && ldn<MAX_LOG_DEV; id++)
- {
+ for (id=0; id<max_pun && ldn<MAX_LOG_DEV; id++) {
if (get_scsi(host_index)[id][lun] == TYPE_NO_LUN ||
- get_scsi(host_index)[id][lun] == TYPE_NO_DEVICE)
- {
- probe_display(1);
- /* Map remaining ldns only to NON-existing pun,lun
- combinations to make sure an inquiry will fail.
- For MULTI_LUN, it is needed to avoid adapter autonome
- SCSI-remapping. */
- immediate_assign(host_index,id,lun,ldn,SET_LDN);
- get_ldn(host_index)[id][lun]=ldn;
- ldn++;
- }
- }
-
+ get_scsi(host_index)[id][lun] == TYPE_NO_DEVICE) {
+ probe_display(1);
+ /* Map remaining ldns only to NON-existing pun,lun
+ combinations to make sure an inquiry will fail.
+ For MULTI_LUN, it is needed to avoid adapter autonome
+ SCSI-remapping. */
+ immediate_assign(host_index,id,lun,ldn,SET_LDN);
+ get_ldn(host_index)[id][lun]=ldn;
+ ldn++;
+ }
+ }
+#ifndef IM_DEBUG_PROBE
+ printk("mapped.");
+#endif
printk("\n");
+#ifdef IM_DEBUG_PROBE
if (ibm_ansi_order)
printk("IBM MCA SCSI: Device order: IBM/ANSI (pun=7 is first).\n");
else
printk("IBM MCA SCSI: Device order: New Industry Standard (pun=0 is first).\n");
-
+#endif
+
#ifdef IM_DEBUG_PROBE
/* Show the physical and logical mapping during boot. */
printk("IBM MCA SCSI: Determined SCSI-device-mapping:\n");
printk(" Physical SCSI-Device Map Logical SCSI-Device Map\n");
printk("ID\\LUN 0 1 2 3 4 5 6 7 ID\\LUN 0 1 2 3 4 5 6 7\n");
- for (id=0; id<max_pun; id++)
- {
- printk("%2d ",id);
- for (lun=0; lun<8; lun++)
- printk("%2s ",ti_p(get_scsi(host_index)[id][lun]));
- printk(" %2d ",id);
- for (lun=0; lun<8; lun++)
- printk("%2s ",ti_l(get_ldn(host_index)[id][lun]));
- printk("\n");
- }
+ for (id=0; id<max_pun; id++) {
+ printk("%2d ",id);
+ for (lun=0; lun<8; lun++)
+ printk("%2s ",ti_p(get_scsi(host_index)[id][lun]));
+ printk(" %2d ",id);
+ for (lun=0; lun<8; lun++)
+ printk("%2s ",ti_l(get_ldn(host_index)[id][lun]));
+ printk("\n");
+ }
#endif
-
+
/* assign total number of found SCSI-devices to the statistics struct */
IBM_DS(host_index).total_scsi_devices = count_devices;
-
+
/* decide for output in /proc-filesystem, if the configuration of
- SCSI-devices makes dynamical reassignment of devices necessary */
- if (count_devices>=MAX_LOG_DEV)
+ SCSI-devices makes dynamical reassignment of devices necessary */
+ if (count_devices>=MAX_LOG_DEV)
IBM_DS(host_index).dyn_flag = 1; /* dynamical assignment is necessary */
- else
+ else
IBM_DS(host_index).dyn_flag = 0; /* dynamical assignment is not necessary */
-
+
/* If no SCSI-devices are assigned, return 1 in order to cause message. */
if (ldn == 0)
printk("IBM MCA SCSI: Warning: No SCSI-devices found/assigned!\n");
-
+
/* reset the counters for statistics on the current adapter */
IBM_DS(host_index).scbs = 0;
IBM_DS(host_index).long_scbs = 0;
IBM_DS(host_index).total_accesses = 0;
IBM_DS(host_index).total_interrupts = 0;
IBM_DS(host_index).dynamical_assignments = 0;
- memset (IBM_DS(host_index).ldn_access, 0x0,
+ memset (IBM_DS(host_index).ldn_access, 0x0,
sizeof (IBM_DS(host_index).ldn_access));
- memset (IBM_DS(host_index).ldn_read_access, 0x0,
+ memset (IBM_DS(host_index).ldn_read_access, 0x0,
sizeof (IBM_DS(host_index).ldn_read_access));
- memset (IBM_DS(host_index).ldn_write_access, 0x0,
+ memset (IBM_DS(host_index).ldn_write_access, 0x0,
sizeof (IBM_DS(host_index).ldn_write_access));
- memset (IBM_DS(host_index).ldn_inquiry_access, 0x0,
+ memset (IBM_DS(host_index).ldn_inquiry_access, 0x0,
sizeof (IBM_DS(host_index).ldn_inquiry_access));
- memset (IBM_DS(host_index).ldn_modeselect_access, 0x0,
+ memset (IBM_DS(host_index).ldn_modeselect_access, 0x0,
sizeof (IBM_DS(host_index).ldn_modeselect_access));
- memset (IBM_DS(host_index).ldn_assignments, 0x0,
+ memset (IBM_DS(host_index).ldn_assignments, 0x0,
sizeof (IBM_DS(host_index).ldn_assignments));
probe_display(0);
return;
}
-/*--------------------------------------------------------------------*/
-
-static int device_exists (int host_index, int ldn, int *block_length,
+static int device_exists (int host_index, int ldn, int *block_length,
int *device_type)
{
unsigned char *buf;
-
/* if no valid device found, return immediately with 0 */
if (!(device_inquiry(host_index, ldn)))
return 0;
-
buf = (unsigned char *)(&(ld(host_index)[ldn].buf));
-
- /*if device is CD_ROM, assume block size 2048 and return */
- if (*buf == TYPE_ROM)
- {
- *device_type = TYPE_ROM;
- *block_length = 2048; /* (standard blocksize for yellow-/red-book) */
- return 1;
- }
-
- if (*buf == TYPE_WORM) /* CD-burner, WORM, Linux handles this as CD-ROM
- therefore, the block_length is also 2048. */
- {
- *device_type = TYPE_WORM;
- *block_length = 2048;
- return 1;
- }
-
- /* if device is disk, use "read capacity" to find its block size */
- if (*buf == TYPE_DISK)
- {
- *device_type = TYPE_DISK;
- if (read_capacity( host_index, ldn))
- {
- *block_length = *(buf+7) + (*(buf+6) << 8) +
- (*(buf+5) << 16) + (*(buf+4) << 24);
- return 1;
- }
- else
- return 0;
- }
-
- /* if this is a magneto-optical drive, treat it like a harddisk */
- if (*buf == TYPE_MOD)
- {
- *device_type = TYPE_MOD;
- if (read_capacity( host_index, ldn))
- {
- *block_length = *(buf+7) + (*(buf+6) << 8) +
- (*(buf+5) << 16) + (*(buf+4) << 24);
- return 1;
- }
- else
- return 0;
- }
-
- if (*buf == TYPE_TAPE) /* TAPE-device found */
- {
- *device_type = TYPE_TAPE;
- *block_length = 0; /* not in use (setting by mt and mtst in op.) */
- return 1;
- }
-
- if (*buf == TYPE_PROCESSOR) /* HP-Scanners, diverse SCSI-processing units*/
- {
- *device_type = TYPE_PROCESSOR;
- *block_length = 0; /* they set their stuff on drivers */
- return 1;
- }
-
- if (*buf == TYPE_SCANNER) /* other SCSI-scanners */
- {
- *device_type = TYPE_SCANNER;
- *block_length = 0; /* they set their stuff on drivers */
- return 1;
- }
-
- if (*buf == TYPE_MEDIUM_CHANGER) /* Medium-Changer */
- {
- *device_type = TYPE_MEDIUM_CHANGER;
- *block_length = 0; /* One never knows, what to expect on a medium
+ if (*buf == TYPE_ROM) {
+ *device_type = TYPE_ROM;
+ *block_length = 2048; /* (standard blocksize for yellow-/red-book) */
+ return 1;
+ }
+ if (*buf == TYPE_WORM) {
+ *device_type = TYPE_WORM;
+ *block_length = 2048;
+ return 1;
+ }
+ if (*buf == TYPE_DISK) {
+ *device_type = TYPE_DISK;
+ if (read_capacity( host_index, ldn)) {
+ *block_length = *(buf+7) + (*(buf+6) << 8) +
+ (*(buf+5) << 16) + (*(buf+4) << 24);
+ return 1;
+ } else
+ return 0;
+ }
+ if (*buf == TYPE_MOD) {
+ *device_type = TYPE_MOD;
+ if (read_capacity( host_index, ldn)) {
+ *block_length = *(buf+7) + (*(buf+6) << 8) +
+ (*(buf+5) << 16) + (*(buf+4) << 24);
+ return 1;
+ } else
+ return 0;
+ }
+ if (*buf == TYPE_TAPE) {
+ *device_type = TYPE_TAPE;
+ *block_length = 0; /* not in use (setting by mt and mtst in op.) */
+ return 1;
+ }
+ if (*buf == TYPE_PROCESSOR) {
+ *device_type = TYPE_PROCESSOR;
+ *block_length = 0; /* they set their stuff on drivers */
+ return 1;
+ }
+ if (*buf == TYPE_SCANNER) {
+ *device_type = TYPE_SCANNER;
+ *block_length = 0; /* they set their stuff on drivers */
+ return 1;
+ }
+ if (*buf == TYPE_MEDIUM_CHANGER) {
+ *device_type = TYPE_MEDIUM_CHANGER;
+ *block_length = 0; /* One never knows, what to expect on a medium
changer device. */
- return 1;
- }
-
- /* Up to now, no SCSI-devices that are known up to kernel 2.1.31 are
- ignored! MO-drives are now supported and treated as harddisk. */
+ return 1;
+ }
return 0;
}
-/*--------------------------------------------------------------------*/
-
+#ifdef CONFIG_SCSI_IBMMCA
void internal_ibmmca_scsi_setup (char *str, int *ints)
{
int i, j, io_base, id_base;
char *token;
-
+
io_base = 0;
id_base = 0;
-
- if (str)
- {
- token = strtok(str,",");
- j = 0;
- while (token)
- {
- if (!strcmp(token,"activity"))
- display_mode |= LED_ACTIVITY;
- if (!strcmp(token,"display"))
- display_mode |= LED_DISP;
- if (!strcmp(token,"adisplay"))
- display_mode |= LED_ADISP;
- if (!strcmp(token,"bypass"))
- bypass_controller = 1;
- if (!strcmp(token,"normal"))
- ibm_ansi_order = 0;
- if (!strcmp(token,"ansi"))
- ibm_ansi_order = 1;
- if (!strcmp(token,"fast"))
- global_adapter_speed = 0;
- if (!strcmp(token,"medium"))
- global_adapter_speed = 4;
- if (!strcmp(token,"slow"))
- global_adapter_speed = 7;
- if ( (*token == '-') || (isdigit(*token)) )
- {
- if (!(j%2) && (io_base < IM_MAX_HOSTS))
- io_port[io_base++] = simple_strtoul(token,NULL,0);
- if ((j%2) && (id_base < IM_MAX_HOSTS))
- scsi_id[id_base++] = simple_strtoul(token,NULL,0);
- j++;
- }
- token = strtok(NULL,",");
- }
- }
- else if (ints)
- {
- for (i = 0; i < IM_MAX_HOSTS && 2*i+2 < ints[0]; i++)
- {
- io_port[i] = ints[2*i+2];
- scsi_id[i] = ints[2*i+2];
- }
- }
+ if (str) {
+ token = strtok(str,",");
+ j = 0;
+ while (token) {
+ if (!strcmp(token,"activity")) display_mode |= LED_ACTIVITY;
+ if (!strcmp(token,"display")) display_mode |= LED_DISP;
+ if (!strcmp(token,"adisplay")) display_mode |= LED_ADISP;
+ if (!strcmp(token,"normal")) ibm_ansi_order = 0;
+ if (!strcmp(token,"ansi")) ibm_ansi_order = 1;
+ if (!strcmp(token,"fast")) global_adapter_speed = 0;
+ if (!strcmp(token,"medium")) global_adapter_speed = 4;
+ if (!strcmp(token,"slow")) global_adapter_speed = 7;
+ if ((*token == '-') || (isdigit(*token))) {
+ if (!(j%2) && (io_base < IM_MAX_HOSTS))
+ io_port[io_base++] = simple_strtoul(token,NULL,0);
+ if ((j%2) && (id_base < IM_MAX_HOSTS))
+ scsi_id[id_base++] = simple_strtoul(token,NULL,0);
+ j++;
+ }
+ token = strtok(NULL,",");
+ }
+ } else if (ints) {
+ for (i = 0; i < IM_MAX_HOSTS && 2*i+2 < ints[0]; i++) {
+ io_port[i] = ints[2*i+2];
+ scsi_id[i] = ints[2*i+2];
+ }
+ }
return;
}
-
-/*--------------------------------------------------------------------*/
+#endif
static int ibmmca_getinfo (char *buf, int slot, void *dev)
{
struct Scsi_Host *shpnt;
- int len, speciale,connectore;
- unsigned int pos2, pos3;
- static unsigned long flags;
-
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&info_lock, flags);
-#endif
-
+ int len, speciale, connectore, k;
+ unsigned int pos[8];
+ unsigned long flags;
+
+ IBMLOCK
shpnt = dev; /* assign host-structure to local pointer */
len = 0; /* set filled text-buffer index to 0 */
/* get the _special contents of the hostdata structure */
speciale = ((struct ibmmca_hostdata *)shpnt->hostdata)->_special;
connectore = ((struct ibmmca_hostdata *)shpnt->hostdata)->_connector_size;
- pos2 = ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos2;
- pos3 = ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos3;
-
- if (speciale == FORCED_DETECTION) /* forced detection */
- {
- len += sprintf (buf + len, "Adapter category: forced detected\n");
- len += sprintf(buf + len, "***************************************\n");
- len += sprintf(buf + len, "*** Forced detected SCSI Adapter ***\n");
- len += sprintf(buf + len, "*** No chip-information available ***\n");
- len += sprintf(buf + len, "***************************************\n");
- }
- else if (speciale == INTEGRATED_SCSI)
- { /* if the integrated subsystem has been found automatically: */
- len += sprintf (buf + len, "Adapter category: integrated\n");
- len += sprintf (buf + len, "Chip revision level: %d\n",
- ((pos2 & 0xf0) >> 4));
- len += sprintf (buf + len, "Chip status: %s\n",
- (pos2 & 1) ? "enabled" : "disabled");
- len += sprintf (buf + len, "8 kByte NVRAM status: %s\n",
- (pos2 & 2) ? "locked" : "accessible");
- }
- else if ((speciale>=0)&&
- (speciale<(sizeof(subsys_list)/sizeof(struct subsys_list_struct))))
- { /* if the subsystem is a slot adapter */
- len += sprintf (buf + len, "Adapter category: slot-card\n");
- len += sprintf (buf + len, "ROM Segment Address: ");
- if ((pos2 & 0xf0) == 0xf0)
- len += sprintf (buf + len, "off\n");
- else
- len += sprintf (buf + len, "0x%x\n",
- ((pos2 & 0xf0) << 13) + 0xc0000);
- len += sprintf (buf + len, "Chip status: %s\n",
- (pos2 & 1) ? "enabled" : "disabled");
- len += sprintf (buf + len, "Adapter I/O Offset: 0x%x\n",
- ((pos2 & 0x0e) << 2));
- }
- else
- {
- len += sprintf (buf + len, "Adapter category: unknown\n");
- }
+ for (k=2;k<4;k++)
+ pos[k] = ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos[k];
+ if (speciale == FORCED_DETECTION) { /* forced detection */
+ len += sprintf (buf+len,
+ "Adapter category: forced detected\n"
+ "***************************************\n"
+ "*** Forced detected SCSI Adapter ***\n"
+ "*** No chip-information available ***\n"
+ "***************************************\n");
+ } else if (speciale == INTEGRATED_SCSI) {
+ /* if the integrated subsystem has been found automatically: */
+ len += sprintf (buf+len,
+ "Adapter category: integrated\n"
+ "Chip revision level: %d\n"
+ "Chip status: %s\n"
+ "8 kByte NVRAM status: %s\n",
+ ((pos[2] & 0xf0) >> 4),
+ (pos[2] & 1) ? "enabled" : "disabled",
+ (pos[2] & 2) ? "locked" : "accessible");
+ } else if ((speciale>=0)&&
+ (speciale<(sizeof(subsys_list)/sizeof(struct subsys_list_struct)))) {
+ /* if the subsystem is a slot adapter */
+ len += sprintf (buf+len,
+ "Adapter category: slot-card\n"
+ "ROM Segment Address: ");
+ if ((pos[2] & 0xf0) == 0xf0)
+ len += sprintf (buf+len, "off\n");
+ else
+ len += sprintf (buf+len, "0x%x\n",
+ ((pos[2] & 0xf0) << 13) + 0xc0000);
+ len += sprintf (buf + len, "Chip status: %s\n",
+ (pos[2] & 1) ? "enabled" : "disabled");
+ len += sprintf (buf + len, "Adapter I/O Offset: 0x%x\n",
+ ((pos[2] & 0x0e) << 2));
+ } else {
+ len += sprintf (buf + len, "Adapter category: unknown\n");
+ }
/* common subsystem information to write to the slotn file */
len += sprintf (buf + len, "Subsystem PUN: %d\n", shpnt->this_id);
len += sprintf (buf + len, "I/O base address range: 0x%x-0x%x\n",
- (unsigned int)(shpnt->io_port),
+ (unsigned int)(shpnt->io_port),
(unsigned int)(shpnt->io_port+7));
len += sprintf (buf + len, "MCA-slot size: %d bits",connectore);
/* Now make sure, the bufferlength is devidable by 4 to avoid
* paging problems of the buffer. */
while ( len % sizeof( int ) != ( sizeof ( int ) - 1 ) )
- {
- len += sprintf (buf + len, " ");
- }
- len += sprintf (buf + len, "\n");
-
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&info_lock, flags);
-#endif
+ len += sprintf (buf+len, " ");
+ len += sprintf (buf+len, "\n");
+ IBMUNLOCK
return len;
}
-
+
int ibmmca_detect (Scsi_Host_Template * scsi_template)
{
struct Scsi_Host *shpnt;
- int port, id, i, j, list_size, slot;
+ int port, id, i, j, k, list_size, slot;
int devices_on_irq_11 = 0;
int devices_on_irq_14 = 0;
int IRQ14_registered = 0;
int IRQ11_registered = 0;
-
+
found = 0; /* make absolutely sure, that found is set to 0 */
- /* First of all, print the version number of the driver. This is
+ /* First of all, print the version number of the driver. This is
* important to allow better user bugreports in case of already
* having problems with the MCA_bus probing. */
printk("IBM MCA SCSI: Version %s\n",IBMMCA_SCSI_DRIVER_VERSION);
/* if this is not MCA machine, return "nothing found" */
- if (!MCA_bus)
- {
- printk("IBM MCA SCSI: No Microchannel-bus present --> Aborting.\n");
- printk(" This machine does not have any IBM MCA-bus\n");
- printk(" or the MCA-Kernel-support is not enabled!\n");
- return 0;
- }
+ if (!MCA_bus) {
+ printk("IBM MCA SCSI: No Microchannel-bus present --> Aborting.\n"
+ " This machine does not have any IBM MCA-bus\n"
+ " or the MCA-Kernel-support is not enabled!\n");
+ return 0;
+ }
#ifdef MODULE
/* If the driver is run as module, read from conf.modules or cmd-line */
- if (boot_options)
- option_setup(boot_options);
-#endif
-
+ if (boot_options) option_setup(boot_options);
+#endif
+
/* get interrupt request level */
-#ifdef OLDKERN
if (request_irq (IM_IRQ, interrupt_handler, SA_SHIRQ, "ibmmcascsi",
- hosts))
-#else
- if (request_irq (IM_IRQ, do_interrupt_handler, SA_SHIRQ, "ibmmcascsi",
- hosts))
-#endif
- {
- printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ);
- return 0;
- }
- else
+ hosts)) {
+ printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ);
+ return 0;
+ } else
IRQ14_registered++;
-
+
/* if ibmmcascsi setup option was passed to kernel, return "found" */
for (i = 0; i < IM_MAX_HOSTS; i++)
- if (io_port[i] > 0 && scsi_id[i] >= 0 && scsi_id[i] < 8)
- {
+ if (io_port[i] > 0 && scsi_id[i] >= 0 && scsi_id[i] < 8) {
printk("IBM MCA SCSI: forced detected SCSI Adapter, io=0x%x, scsi id=%d.\n",
io_port[i], scsi_id[i]);
if ((shpnt = ibmmca_register(scsi_template, io_port[i], scsi_id[i],
- FORCED_DETECTION,
- "forced detected SCSI Adapter")))
- {
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos2 = 0;
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos3 = 0;
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos4 = 0;
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos5 = 0;
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos6 = 0;
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_special =
- FORCED_DETECTION;
- mca_set_adapter_name(MCA_INTEGSCSI, "forced detected SCSI Adapter");
- mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo,
- shpnt);
- mca_mark_as_used(MCA_INTEGSCSI);
- devices_on_irq_14++;
- }
+ FORCED_DETECTION, "forced detected SCSI Adapter"))) {
+ for (k=2;k<7;k++)
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos[k] = 0;
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = FORCED_DETECTION;
+ mca_set_adapter_name(MCA_INTEGSCSI, "forced detected SCSI Adapter");
+ mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo,
+ shpnt);
+ mca_mark_as_used(MCA_INTEGSCSI);
+ devices_on_irq_14++;
+ }
}
if (found) return found;
-
+
/* The POS2-register of all PS/2 model SCSI-subsystems has the following
* interpretation of bits:
* Bit 7 - 4 : Chip Revision ID (Release)
@@ -2015,254 +1569,208 @@
* Bit 4 : Reserved = 0
* Bit 3 - 0 : Reserved = 0
* (taken from "IBM, PS/2 Hardware Interface Technical Reference, Common
- * Interfaces (1991)").
- * In short words, this means, that IBM PS/2 machines only support
- * 1 single subsystem by default. The slot-adapters must have another
+ * Interfaces (1991)").
+ * In short words, this means, that IBM PS/2 machines only support
+ * 1 single subsystem by default. The slot-adapters must have another
* configuration on pos2. Here, one has to assume the following
* things for POS2-register:
* Bit 7 - 4 : Chip Revision ID (Release)
* Bit 3 - 1 : port offset factor
* Bit 0 : Chip Enable (EN-Signal)
* As I found a patch here, setting the IO-registers to 0x3540 forced,
- * as there was a 0x05 in POS2 on a model 56, I assume, that the
+ * as there was a 0x05 in POS2 on a model 56, I assume, that the
* port 0x3540 must be fix for integrated SCSI-controllers.
* Ok, this discovery leads to the following implementation: (M.Lang) */
/* first look for the IBM SCSI integrated subsystem on the motherboard */
for (j=0;j<8;j++) /* read the pos-information */
pos[j] = mca_read_stored_pos(MCA_INTEGSCSI,j);
- /* pos2 = pos3 = 0xff if there is no integrated SCSI-subsystem present */
- /* if (( pos[2] != 0xff) || (pos[3] != 0xff )) */
- /* Previous if-arguments do fail! Therefore, we use now the following to
- * make sure, we see a real integrated onboard SCSI-interface: */
+ /* pos2 = pos3 = 0xff if there is no integrated SCSI-subsystem present, but
+ * if we ignore the settings of all surrounding pos registers, it is not
+ * completely sufficient to only check pos2 and pos3. */
+ /* Therefore, now the following if statement is used to
+ * make sure, we see a real integrated onboard SCSI-interface and no
+ * internal system information, which gets mapped to some pos registers
+ * on models 95xx. */
if ((!pos[0] && !pos[1] && pos[2]>0 && pos[3]>0 && !pos[4] && !pos[5] && !pos[6] && !pos[7]) ||
- (pos[0]==0xff && pos[1]==0xff && pos[2]<0xff && pos[3]<0xff && pos[4]==0xff && pos[5]==0xff && pos[6]==0xff && pos[7]==0xff))
- {
- if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */
- port = IM_IO_PORT;
- else
- { /* if disabled, no IRQs will be generated, as the chip won't
- * listen to the incomming commands and will do really nothing,
- * except for listening to the pos-register settings. If this
- * happens, I need to hugely think about it, as one has to
- * write something to the MCA-Bus pos register in order to
- * enable the chip. Normally, IBM-SCSI won't pass the POST,
- * when the chip is disabled (see IBM tech. ref.). */
- port = IM_IO_PORT; /* anyway, set the portnumber and warn */
- printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
- printk(" SCSI-operations may not work.\n");
- }
- id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */
-
- /* give detailed information on the subsystem. This helps me
- * additionally during debugging and analyzing bug-reports. */
- printk("IBM MCA SCSI: IBM Integrated SCSI Controller found, io=0x%x, scsi id=%d,\n",
- port, id);
- printk(" chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n",
- ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible",
- (pos[2] & 1) ? "enabled." : "disabled.");
-
- /* register the found integrated SCSI-subsystem */
- if ((shpnt = ibmmca_register(scsi_template, port, id,
- INTEGRATED_SCSI,
- "IBM Integrated SCSI Controller")))
- {
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos2 = pos[2];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos3 = pos[3];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos4 = pos[4];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos5 = pos[5];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos6 = pos[6];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_special =
- INTEGRATED_SCSI;
- mca_set_adapter_name(MCA_INTEGSCSI, "IBM Integrated SCSI Controller");
- mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo,
- shpnt);
- mca_mark_as_used(MCA_INTEGSCSI);
- devices_on_irq_14++;
- }
- }
-
- /* now look for other adapters in MCA slots, */
+ (pos[0]==0xff && pos[1]==0xff && pos[2]<0xff && pos[3]<0xff && pos[4]==0xff && pos[5]==0xff && pos[6]==0xff && pos[7]==0xff)) {
+ if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */
+ port = IM_IO_PORT;
+ else { /* if disabled, no IRQs will be generated, as the chip won't
+ * listen to the incomming commands and will do really nothing,
+ * except for listening to the pos-register settings. If this
+ * happens, I need to hugely think about it, as one has to
+ * write something to the MCA-Bus pos register in order to
+ * enable the chip. Normally, IBM-SCSI won't pass the POST,
+ * when the chip is disabled (see IBM tech. ref.). */
+ port = IM_IO_PORT; /* anyway, set the portnumber and warn */
+ printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"
+ " SCSI-operations may not work.\n");
+ }
+ id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */
+ /* give detailed information on the subsystem. This helps me
+ * additionally during debugging and analyzing bug-reports. */
+ printk("IBM MCA SCSI: IBM Integrated SCSI Controller found, io=0x%x, scsi id=%d,\n"
+ " chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n",
+ port, id,
+ ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible",
+ (pos[2] & 1) ? "enabled." : "disabled.");
+
+ /* register the found integrated SCSI-subsystem */
+ if ((shpnt = ibmmca_register(scsi_template, port, id, INTEGRATED_SCSI,
+ "IBM Integrated SCSI Controller"))) {
+ for (k=2;k<7;k++)
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos[k] = pos[k];
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = INTEGRATED_SCSI;
+ mca_set_adapter_name(MCA_INTEGSCSI, "IBM Integrated SCSI Controller");
+ mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo,
+ shpnt);
+ mca_mark_as_used(MCA_INTEGSCSI);
+ devices_on_irq_14++;
+ }
+ }
+
+ /* now look for other adapters in MCA slots, */
/* determine the number of known IBM-SCSI-subsystem types */
/* see the pos[2] dependence to get the adapter port-offset. */
list_size = sizeof(subsys_list) / sizeof(struct subsys_list_struct);
- for (i = 0; i < list_size; i++)
- { /* scan each slot for a fitting adapter id */
- slot = 0; /* start at slot 0 */
- while ((slot = mca_find_adapter(subsys_list[i].mca_id, slot))
- != MCA_NOTFOUND)
- { /* scan through all slots */
- for (j=0;j<8;j++) /* read the pos-information */
- pos[j] = mca_read_stored_pos(slot, j);
- if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */
- { /* (explanations see above) */
- port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
- }
- else
- { /* anyway, set the portnumber and warn */
- port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
- printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
- printk(" SCSI-operations may not work.\n");
- }
- if ((i==IBM_SCSI2_FW)&&(pos[6]!=0))
- {
- printk("IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n");
- printk(" Impossible to determine adapter PUN!\n");
- printk(" Guessing adapter PUN = 7.\n");
- id = 7;
- }
- else
- {
- id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
- if (i==IBM_SCSI2_FW)
- {
- id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
- * for F/W adapters */
- }
- }
- if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
- { /* IRQ11 is used by SCSI-2 F/W Adapter/A */
- printk("IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
- /* get interrupt request level */
-#ifdef OLDKERN
- if (request_irq (IM_IRQ_FW, interrupt_handler, SA_SHIRQ,
- "ibmmcascsi", hosts))
-#else
- if (request_irq (IM_IRQ_FW, do_interrupt_handler, SA_SHIRQ,
- "ibmmcascsi", hosts))
-#endif
- {
- printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n",
- IM_IRQ_FW);
- }
- else
- IRQ11_registered++;
- }
- printk("IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n",
- subsys_list[i].description, slot + 1, port, id);
- if ((pos[2] & 0xf0) == 0xf0)
- printk(" ROM Addr.=off,");
- else
- printk(" ROM Addr.=0x%x,",
- ((pos[2] & 0xf0) << 13) + 0xc0000);
- printk(" port-offset=0x%x, subsystem=%s\n",
- ((pos[2] & 0x0e) << 2),
- (pos[2] & 1) ? "enabled." : "disabled.");
-
- /* register the hostadapter */
- if ((shpnt = ibmmca_register(scsi_template, port, id, i,
- subsys_list[i].description)))
- {
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos2 = pos[2];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos3 = pos[3];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos4 = pos[4];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos5 = pos[5];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos6 = pos[6];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = i;
-
- mca_set_adapter_name (slot, subsys_list[i].description);
- mca_set_adapter_procfn (slot, (MCA_ProcFn) ibmmca_getinfo,
- shpnt);
- mca_mark_as_used(slot);
- if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
- devices_on_irq_11++;
- else
- devices_on_irq_14++;
- }
- slot++; /* advance to next slot */
- } /* advance to next adapter id in the list of IBM-SCSI-subsystems*/
- }
+ for (i = 0; i < list_size; i++) {
+ /* scan each slot for a fitting adapter id */
+ slot = 0; /* start at slot 0 */
+ while ((slot = mca_find_adapter(subsys_list[i].mca_id, slot))
+ != MCA_NOTFOUND) { /* scan through all slots */
+ for (j=0;j<8;j++) /* read the pos-information */
+ pos[j] = mca_read_stored_pos(slot, j);
+ if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */
+ /* (explanations see above) */
+ port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
+ else {
+ /* anyway, set the portnumber and warn */
+ port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
+ printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"
+ " SCSI-operations may not work.\n");
+ }
+ if ((i==IBM_SCSI2_FW)&&(pos[6]!=0)) {
+ printk("IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"
+ " Impossible to determine adapter PUN!\n"
+ " Guessing adapter PUN = 7.\n");
+ id = 7;
+ } else {
+ id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
+ if (i==IBM_SCSI2_FW) {
+ id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
+ * for F/W adapters */
+ }
+ }
+ if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0)) {
+ /* IRQ11 is used by SCSI-2 F/W Adapter/A */
+ printk("IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
+ /* get interrupt request level */
+ if (request_irq (IM_IRQ_FW, interrupt_handler, SA_SHIRQ,
+ "ibmmcascsi", hosts)) {
+ printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n",
+ IM_IRQ_FW);
+ } else
+ IRQ11_registered++;
+ }
+ printk("IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n",
+ subsys_list[i].description, slot + 1, port, id);
+ if ((pos[2] & 0xf0) == 0xf0)
+ printk(" ROM Addr.=off,");
+ else
+ printk(" ROM Addr.=0x%x,",
+ ((pos[2] & 0xf0) << 13) + 0xc0000);
+ printk(" port-offset=0x%x, subsystem=%s\n",
+ ((pos[2] & 0x0e) << 2),
+ (pos[2] & 1) ? "enabled." : "disabled.");
+
+ /* register the hostadapter */
+ if ((shpnt = ibmmca_register(scsi_template, port, id, i,
+ subsys_list[i].description))) {
+ for (k=2;k<8;k++)
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos[k] = pos[k];
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = i;
+ mca_set_adapter_name (slot, subsys_list[i].description);
+ mca_set_adapter_procfn (slot, (MCA_ProcFn) ibmmca_getinfo,
+ shpnt);
+ mca_mark_as_used(slot);
+ if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
+ devices_on_irq_11++;
+ else
+ devices_on_irq_14++;
+ }
+ slot++; /* advance to next slot */
+ } /* advance to next adapter id in the list of IBM-SCSI-subsystems*/
+ }
-
- /* now look for SCSI-adapters, by bugs mapped to the integrated SCSI
- * area. E.g. a W/Cache in MCA-slot 9 ???? Arrrrgh!! */
+ /* now check for SCSI-adapters, mapped to the integrated SCSI
+ * area. E.g. a W/Cache in MCA-slot 9(!). Do the check correct here,
+ * as this is a known effect on some models 95xx. */
list_size = sizeof(subsys_list) / sizeof(struct subsys_list_struct);
- for (i = 0; i < list_size; i++)
- { /* scan each slot for a fitting adapter id */
- slot = mca_find_adapter(subsys_list[i].mca_id, MCA_INTEGSCSI);
- if (slot != MCA_NOTFOUND)
- { /* scan through all slots */
- for (j=0;j<8;j++) /* read the pos-information */
- pos[j] = mca_read_stored_pos(slot, j);
- if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */
- { /* (explanations see above) */
- port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
- }
- else
- { /* anyway, set the portnumber and warn */
- port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
- printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
- printk(" SCSI-operations may not work.\n");
- }
- if ((i==IBM_SCSI2_FW)&&(pos[6]!=0))
- {
- printk("IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n");
- printk(" Impossible to determine adapter PUN!\n");
- printk(" Guessing adapter PUN = 7.\n");
- id = 7;
- }
- else
- {
- id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
- if (i==IBM_SCSI2_FW)
- {
- id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
- * for F/W adapters */
- }
- }
- if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
- { /* IRQ11 is used by SCSI-2 F/W Adapter/A */
- printk("IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
- /* get interrupt request level */
-#ifdef OLDKERN
- if (request_irq (IM_IRQ_FW, interrupt_handler, SA_SHIRQ,
- "ibmmcascsi", hosts))
-#else
- if (request_irq (IM_IRQ_FW, do_interrupt_handler, SA_SHIRQ,
- "ibmmcascsi", hosts))
-#endif
- {
- printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n",
- IM_IRQ_FW);
- }
- else
- IRQ11_registered++;
- }
- printk("IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n",
- subsys_list[i].description, slot + 1, port, id);
- if ((pos[2] & 0xf0) == 0xf0)
- printk(" ROM Addr.=off,");
- else
- printk(" ROM Addr.=0x%x,",
- ((pos[2] & 0xf0) << 13) + 0xc0000);
- printk(" port-offset=0x%x, subsystem=%s\n",
- ((pos[2] & 0x0e) << 2),
- (pos[2] & 1) ? "enabled." : "disabled.");
-
- /* register the hostadapter */
- if ((shpnt = ibmmca_register(scsi_template, port, id, i,
- subsys_list[i].description)))
- {
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos2 = pos[2];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos3 = pos[3];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos4 = pos[4];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos5 = pos[5];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos6 = pos[6];
- ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = i;
-
- mca_set_adapter_name (slot, subsys_list[i].description);
- mca_set_adapter_procfn (slot, (MCA_ProcFn) ibmmca_getinfo,
- shpnt);
- mca_mark_as_used(slot);
- if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
- devices_on_irq_11++;
- else
- devices_on_irq_14++;
- }
- slot++; /* advance to next slot */
- } /* advance to next adapter id in the list of IBM-SCSI-subsystems*/
- }
-
+ for (i = 0; i < list_size; i++) {
+ /* scan each slot for a fitting adapter id */
+ slot = mca_find_adapter(subsys_list[i].mca_id, MCA_INTEGSCSI);
+ if (slot != MCA_NOTFOUND) { /* scan through all slots */
+ for (j=0;j<8;j++) /* read the pos-information */
+ pos[j] = mca_read_stored_pos(slot, j);
+ if ((pos[2] & 1) == 1) { /* is the subsystem chip enabled ? */
+ /* (explanations see above) */
+ port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
+ } else { /* anyway, set the portnumber and warn */
+ port = IM_IO_PORT + ((pos[2] & 0x0e) << 2);
+ printk("IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n"
+ " SCSI-operations may not work.\n");
+ }
+ if ((i==IBM_SCSI2_FW)&&(pos[6]!=0)) {
+ printk("IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"
+ " Impossible to determine adapter PUN!\n"
+ " Guessing adapter PUN = 7.\n");
+ id = 7;
+ } else {
+ id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
+ if (i==IBM_SCSI2_FW)
+ id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
+ * for F/W adapters */
+ }
+ if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0)) {
+ /* IRQ11 is used by SCSI-2 F/W Adapter/A */
+ printk("IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
+ /* get interrupt request level */
+ if (request_irq (IM_IRQ_FW, interrupt_handler, SA_SHIRQ,
+ "ibmmcascsi", hosts))
+ printk("IBM MCA SCSI: Unable to get shared IRQ %d.\n",
+ IM_IRQ_FW);
+ else
+ IRQ11_registered++;
+ }
+ printk("IBM MCA SCSI: %s found in slot %d, io=0x%x, scsi id=%d,\n",
+ subsys_list[i].description, slot + 1, port, id);
+ if ((pos[2] & 0xf0) == 0xf0)
+ printk(" ROM Addr.=off,");
+ else
+ printk(" ROM Addr.=0x%x,",
+ ((pos[2] & 0xf0) << 13) + 0xc0000);
+ printk(" port-offset=0x%x, subsystem=%s\n",
+ ((pos[2] & 0x0e) << 2),
+ (pos[2] & 1) ? "enabled." : "disabled.");
+
+ /* register the hostadapter */
+ if ((shpnt = ibmmca_register(scsi_template, port, id, i,
+ subsys_list[i].description))) {
+ for (k=2;k<7;k++)
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_pos[k] = pos[k];
+ ((struct ibmmca_hostdata *)shpnt->hostdata)->_special = i;
+ mca_set_adapter_name (slot, subsys_list[i].description);
+ mca_set_adapter_procfn (slot, (MCA_ProcFn) ibmmca_getinfo, shpnt);
+ mca_mark_as_used(slot);
+ if ((i==IBM_SCSI2_FW)&&(pos[4] & 0x01)&&(pos[6]==0))
+ devices_on_irq_11++;
+ else
+ devices_on_irq_14++;
+ }
+ slot++; /* advance to next slot */
+ } /* advance to next adapter id in the list of IBM-SCSI-subsystems*/
+ }
if ( IRQ11_registered && !devices_on_irq_11 )
free_irq(IM_IRQ_FW, hosts); /* no devices on IRQ 11 */
if ( IRQ14_registered && !devices_on_irq_14 )
@@ -2273,32 +1781,29 @@
}
static struct Scsi_Host *
-ibmmca_register(Scsi_Host_Template * scsi_template, int port, int id,
+ibmmca_register(Scsi_Host_Template * scsi_template, int port, int id,
int adaptertype, char *hostname)
{
struct Scsi_Host *shpnt;
int i, j;
unsigned int ctrl;
-
+
/* check I/O region */
- if (check_region(port, IM_N_IO_PORT))
- {
- printk("IBM MCA SCSI: Unable to get I/O region 0x%x-0x%x (%d ports).\n",
- port, port + IM_N_IO_PORT - 1, IM_N_IO_PORT);
- return NULL;
- }
-
+ if (check_region(port, IM_N_IO_PORT)) {
+ printk("IBM MCA SCSI: Unable to get I/O region 0x%x-0x%x (%d ports).\n",
+ port, port + IM_N_IO_PORT - 1, IM_N_IO_PORT);
+ return NULL;
+ }
+
/* register host */
shpnt = scsi_register(scsi_template, sizeof(struct ibmmca_hostdata));
- if (!shpnt)
- {
- printk("IBM MCA SCSI: Unable to register host.\n");
- return NULL;
- }
-
+ if (!shpnt) {
+ printk("IBM MCA SCSI: Unable to register host.\n");
+ return NULL;
+ }
+
/* request I/O region */
request_region(port, IM_N_IO_PORT, hostname);
-
hosts[found] = shpnt; /* add new found hostadapter to the list */
special(found) = adaptertype; /* important assignment or else crash! */
subsystem_connector_size(found) = 0; /* preset slot-size */
@@ -2308,8 +1813,8 @@
shpnt->this_id = id;
shpnt->max_id = 8; /* 8 PUNs are default */
/* now, the SCSI-subsystem is connected to Linux */
-
- ctrl = (unsigned int)(inb(IM_CTR_REG(found))); /* get control-register status */
+
+ ctrl = (unsigned int)(inb(IM_CTR_REG(found))); /* get control-register status */
#ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Control Register contents: %x, status: %x\n",
ctrl,inb(IM_STAT_REG(found)));
@@ -2317,10 +1822,7 @@
for (i=0;i<8;i++)
printk("%x ",pos[i]);
printk("\n");
- if (bypass_controller)
- printk("IBM MCA SCSI: Subsystem SCSI-commands get bypassed.\n");
#endif
-
reset_status(found) = IM_RESET_NOT_IN_PROGRESS;
for (i = 0; i < 16; i++) /* reset the tables */
@@ -2329,55 +1831,30 @@
/* check which logical devices exist */
/* after this line, local interrupting is possible: */
- local_checking_phase_flag(found) = 1;
+ local_checking_phase_flag(found) = 1;
check_devices(found,adaptertype); /* call by value, using the global variable hosts*/
local_checking_phase_flag(found) = 0;
-
found++; /* now increase index to be prepared for next found subsystem */
/* an ibm mca subsystem has been detected */
return shpnt;
}
-/*--------------------------------------------------------------------*/
-
int ibmmca_command (Scsi_Cmnd * cmd)
{
ibmmca_queuecommand (cmd, internal_done);
cmd->SCp.Status = 0;
- while (!cmd->SCp.Status)
- barrier ();
+ while (!cmd->SCp.Status) barrier ();
return cmd->result;
}
-/*--------------------------------------------------------------------*/
-
int ibmmca_release(struct Scsi_Host *shpnt)
{
release_region(shpnt->io_port, shpnt->n_io_port);
- if (!(--found))
- free_irq(shpnt->irq, hosts);
+ if (!(--found)) free_irq(shpnt->irq, hosts);
return 0;
}
-/*--------------------------------------------------------------------*/
-
-/* The following routine is the SCSI command queue. The old edition is
- now improved by dynamical reassignment of ldn numbers that are
- currently not assigned. The mechanism works in a way, that first
- the physical structure is checked. If at a certain pun,lun a device
- should be present, the routine proceeds to the ldn check from
- get_ldn. An answer of 0xff would show-up, that the aimed device is
- currently not assigned any ldn. At this point, the dynamical
- remapping algorithm is called. It works in a way, that it goes in
- cyclic order through the ldns from 7 to 14. If a ldn is assigned,
- it takes 8 dynamical reassignment calls, until a device looses its
- ldn again. With this method it is assured, that while doing
- intense I/O between up to eight devices, no dynamical remapping is
- done there. ldns 0 through 6(!) are left untouched, which means, that
- puns 0 through 7(!) on lun=0 are always accessible without remapping.
- These ldns are statically assigned by this driver. The subsystem always
- occupies at least one pun, therefore 7 ldns (at lun=0) for other devices
- are sufficient. (The adapter uses always ldn=15, at whatever pun it is.) */
+/* The following routine is the SCSI command queue for the midlevel driver */
int ibmmca_queuecommand (Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
{
unsigned int ldn;
@@ -2391,413 +1868,321 @@
int max_pun;
int i;
struct scatterlist *sl;
-
- shpnt = cmd->host;
+ shpnt = cmd->host;
/* search for the right hostadapter */
for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++);
-
- if (!hosts[host_index])
- { /* invalid hostadapter descriptor address */
- cmd->result = DID_NO_CONNECT << 16;
- if (done)
- done (cmd);
- return 0;
- }
-
+
+ if (!hosts[host_index]) { /* invalid hostadapter descriptor address */
+ cmd->result = DID_NO_CONNECT << 16;
+ if (done) done (cmd);
+ return 0;
+ }
max_pun = subsystem_maxid(host_index);
-
- if (ibm_ansi_order)
- {
- target = max_pun - 1 - cmd->target;
- if ((target <= subsystem_pun(host_index))&&(cmd->target <= subsystem_pun(host_index)))
- target--;
- else if ((target >= subsystem_pun(host_index))&&(cmd->target >= subsystem_pun(host_index)))
- target++;
- }
- else
+ if (ibm_ansi_order) {
+ target = max_pun - 1 - cmd->target;
+ if ((target <= subsystem_pun(host_index))&&(cmd->target <= subsystem_pun(host_index)))
+ target--;
+ else if ((target >= subsystem_pun(host_index))&&(cmd->target >= subsystem_pun(host_index)))
+ target++;
+ } else
target = cmd->target;
-
- /*if (target,lun) is NO LUN or not existing at all, return error */
+
+ /* if (target,lun) is NO LUN or not existing at all, return error */
if ((get_scsi(host_index)[target][cmd->lun] == TYPE_NO_LUN)||
- (get_scsi(host_index)[target][cmd->lun] == TYPE_NO_DEVICE))
- {
- cmd->result = DID_NO_CONNECT << 16;
- if (done)
- done (cmd);
- return 0;
- }
-
+ (get_scsi(host_index)[target][cmd->lun] == TYPE_NO_DEVICE)) {
+ cmd->result = DID_NO_CONNECT << 16;
+ if (done) done (cmd);
+ return 0;
+ }
+
/*if (target,lun) unassigned, do further checks... */
ldn = get_ldn(host_index)[target][cmd->lun];
- if (ldn >= MAX_LOG_DEV) /* on invalid ldn do special stuff */
- {
- if (ldn > MAX_LOG_DEV) /* dynamical remapping if ldn unassigned */
- {
- current_ldn = next_ldn(host_index); /* stop-value for one circle */
- while (ld(host_index)[next_ldn(host_index)].cmd) /* search for a occupied, but not in */
- { /* command-processing ldn. */
- next_ldn(host_index)++;
- if (next_ldn(host_index)>=MAX_LOG_DEV)
- next_ldn(host_index) = 7;
- if (current_ldn == next_ldn(host_index)) /* One circle done ? */
- { /* no non-processing ldn found */
- printk("IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n");
- printk(" On ldn 7-14 SCSI-commands everywhere in progress.\n");
- printk(" Reporting DID_NO_CONNECT for device (%d,%d).\n",
- target, cmd->lun);
- cmd->result = DID_NO_CONNECT << 16;/* return no connect*/
- if (done)
- done (cmd);
- return 0;
- }
- }
-
- /* unmap non-processing ldn */
- for (id=0; id<max_pun; id ++)
- for (lun=0; lun<8; lun++)
- {
- if (get_ldn(host_index)[id][lun] == next_ldn(host_index))
- {
- get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE;
- /* unmap entry */
- }
- }
- /* set reduced interrupt_handler-mode for checking */
- local_checking_phase_flag(host_index) = 1;
- /* unassign found ldn (pun,lun does not matter for remove) */
- immediate_assign(host_index,0,0,next_ldn(host_index),REMOVE_LDN);
- /* assign found ldn to aimed pun,lun */
- immediate_assign(host_index,target,cmd->lun,next_ldn(host_index),SET_LDN);
- /* map found ldn to pun,lun */
- get_ldn(host_index)[target][cmd->lun] = next_ldn(host_index);
- /* change ldn to the right value, that is now next_ldn */
- ldn = next_ldn(host_index);
- /* get device information for ld[ldn] */
- if (device_exists (host_index, ldn,
- &ld(host_index)[ldn].block_length,
- &ld(host_index)[ldn].device_type))
- {
- ld(host_index)[ldn].cmd = 0; /* To prevent panic set 0, because
- devices that were not assigned,
- should have nothing in progress. */
-
- /* increase assignment counters for statistics in /proc */
- IBM_DS(host_index).dynamical_assignments++;
- IBM_DS(host_index).ldn_assignments[ldn]++;
- }
- else
- /* panic here, because a device, found at boottime has
- vanished */
- panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n",
- ldn, target, cmd->lun);
-
- /* set back to normal interrupt_handling */
- local_checking_phase_flag(host_index) = 0;
-
- /* Information on syslog terminal */
- printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n",
- ldn, target, cmd->lun);
-
- /* increase next_ldn for next dynamical assignment */
- next_ldn(host_index)++;
- if (next_ldn(host_index)>=MAX_LOG_DEV)
- next_ldn(host_index) = 7;
- }
- else
- { /* wall against Linux accesses to the subsystem adapter */
- cmd->result = DID_BAD_TARGET << 16;
- if (done)
- done (cmd);
- return 0;
- }
- }
-
+ if (ldn >= MAX_LOG_DEV) { /* on invalid ldn do special stuff */
+ if (ldn > MAX_LOG_DEV) { /* dynamical remapping if ldn unassigned */
+ current_ldn = next_ldn(host_index); /* stop-value for one circle */
+ while (ld(host_index)[next_ldn(host_index)].cmd) { /* search for a occupied, but not in */
+ /* command-processing ldn. */
+ next_ldn(host_index)++;
+ if (next_ldn(host_index)>=MAX_LOG_DEV)
+ next_ldn(host_index) = 7;
+ if (current_ldn == next_ldn(host_index)) { /* One circle done ? */
+ /* no non-processing ldn found */
+ printk("IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n" \
+ " On ldn 7-14 SCSI-commands everywhere in progress.\n" \
+ " Reporting DID_NO_CONNECT for device (%d,%d).\n",
+ target, cmd->lun);
+ cmd->result = DID_NO_CONNECT << 16;/* return no connect*/
+ if (done) done (cmd);
+ return 0;
+ }
+ }
+
+ /* unmap non-processing ldn */
+ for (id=0; id<max_pun; id ++)
+ for (lun=0; lun<8; lun++) {
+ if (get_ldn(host_index)[id][lun] == next_ldn(host_index)) {
+ get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE;
+ get_scsi(host_index)[id][lun] = TYPE_NO_DEVICE;
+ /* unmap entry */
+ }
+ }
+ /* set reduced interrupt_handler-mode for checking */
+ local_checking_phase_flag(host_index) = 1;
+ /* map found ldn to pun,lun */
+ get_ldn(host_index)[target][cmd->lun] = next_ldn(host_index);
+ /* change ldn to the right value, that is now next_ldn */
+ ldn = next_ldn(host_index);
+ /* unassign all ldns (pun,lun,ldn does not matter for remove) */
+ immediate_assign(host_index,0,0,0,REMOVE_LDN);
+ /* set only LDN for remapped device */
+ immediate_assign(host_index,target,cmd->lun,ldn,SET_LDN);
+ /* get device information for ld[ldn] */
+ if (device_exists (host_index, ldn,
+ &ld(host_index)[ldn].block_length,
+ &ld(host_index)[ldn].device_type)) {
+ ld(host_index)[ldn].cmd = NULL; /* To prevent panic set 0, because
+ devices that were not assigned,
+ should have nothing in progress. */
+ get_scsi(host_index)[target][cmd->lun] = ld(host_index)[ldn].device_type;
+ /* increase assignment counters for statistics in /proc */
+ IBM_DS(host_index).dynamical_assignments++;
+ IBM_DS(host_index).ldn_assignments[ldn]++;
+ } else
+ /* panic here, because a device, found at boottime has
+ vanished */
+ panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n",
+ ldn, target, cmd->lun);
+ /* unassign again all ldns (pun,lun,ldn does not matter for remove) */
+ immediate_assign(host_index,0,0,0,REMOVE_LDN);
+ /* remap all ldns, as written in the pun/lun table */
+ lun=0;
+#ifdef CONFIG_SCSI_MULTI_LUN
+ for (lun=0; lun<8; lun++)
+#endif
+ for (id=0; id<max_pun; id ++) {
+ if (get_ldn(host_index)[id][lun] <= MAX_LOG_DEV)
+ immediate_assign(host_index,id,lun,
+ get_ldn(host_index)[id][lun],SET_LDN);
+ }
+ /* set back to normal interrupt_handling */
+ local_checking_phase_flag(host_index) = 0;
+#ifdef IM_DEBUG_PROBE
+ /* Information on syslog terminal */
+ printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n",
+ ldn, target, cmd->lun);
+#endif
+ /* increase next_ldn for next dynamical assignment */
+ next_ldn(host_index)++;
+ if (next_ldn(host_index)>=MAX_LOG_DEV)
+ next_ldn(host_index) = 7;
+ } else { /* wall against Linux accesses to the subsystem adapter */
+ cmd->result = DID_BAD_TARGET << 16;
+ if (done) done (cmd);
+ return 0;
+ }
+ }
+
/*verify there is no command already in progress for this log dev */
if (ld(host_index)[ldn].cmd)
panic ("IBM MCA SCSI: cmd already in progress for this ldn.\n");
-
+
/*save done in cmd, and save cmd for the interrupt handler */
cmd->scsi_done = done;
ld(host_index)[ldn].cmd = cmd;
-
+
/*fill scb information independent of the scsi command */
scb = &(ld(host_index)[ldn].scb);
ld(host_index)[ldn].tsb.dev_status = 0;
scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE;
scb->tsb_adr = virt_to_bus(&(ld(host_index)[ldn].tsb));
scsi_cmd = cmd->cmnd[0];
-
- if (cmd->use_sg)
- {
- i = cmd->use_sg;
- sl = (struct scatterlist *)(cmd->request_buffer);
- if (i > 16)
- panic ("IBM MCA SCSI: scatter-gather list too long.\n");
- while (--i >= 0)
- {
- ld(host_index)[ldn].sge[i].address = (void *)(virt_to_bus(sl[i].address));
- ld(host_index)[ldn].sge[i].byte_length = sl[i].length;
- }
- scb->enable |= IM_POINTER_TO_LIST;
- scb->sys_buf_adr = virt_to_bus(&(ld(host_index)[ldn].sge[0]));
- scb->sys_buf_length = cmd->use_sg * sizeof (struct im_sge);
- }
- else
- {
- scb->sys_buf_adr = virt_to_bus(cmd->request_buffer);
- /* recent Linux midlevel SCSI places 1024 byte for inquiry
- * command. Far too much for old PS/2 hardware. */
- switch (scsi_cmd)
- { /* avoid command errors by setting bufferlengths to
- * ANSI-standard. */
- case INQUIRY:
- case REQUEST_SENSE:
- case MODE_SENSE:
- case MODE_SELECT:
- scb->sys_buf_length = 255;
- break;
- case TEST_UNIT_READY:
- scb->sys_buf_length = 0;
- break;
- default:
- scb->sys_buf_length = cmd->request_bufflen;
- break;
- }
- }
+
+ if (cmd->use_sg) {
+ i = cmd->use_sg;
+ sl = (struct scatterlist *)(cmd->request_buffer);
+ if (i > 16)
+ panic ("IBM MCA SCSI: scatter-gather list too long.\n");
+ while (--i >= 0) {
+ ld(host_index)[ldn].sge[i].address = (void *)(virt_to_bus(sl[i].address));
+ ld(host_index)[ldn].sge[i].byte_length = sl[i].length;
+ }
+ scb->enable |= IM_POINTER_TO_LIST;
+ scb->sys_buf_adr = virt_to_bus(&(ld(host_index)[ldn].sge[0]));
+ scb->sys_buf_length = cmd->use_sg * sizeof (struct im_sge);
+ } else {
+ scb->sys_buf_adr = virt_to_bus(cmd->request_buffer);
+ /* recent Linux midlevel SCSI places 1024 byte for inquiry
+ * command. Far too much for old PS/2 hardware. */
+ switch (scsi_cmd) {
+ /* avoid command errors by setting bufferlengths to
+ * ANSI-standard. Beware of forcing it to 255,
+ * this could SEGV the kernel!!! */
+ case INQUIRY:
+ case REQUEST_SENSE:
+ case MODE_SENSE:
+ case MODE_SELECT:
+ if (cmd->request_bufflen > 255) scb->sys_buf_length = 255;
+ else scb->sys_buf_length = cmd->request_bufflen;
+ break;
+ case TEST_UNIT_READY:
+ scb->sys_buf_length = 0;
+ break;
+ default:
+ scb->sys_buf_length = cmd->request_bufflen;
+ break;
+ }
+ }
/*fill scb information dependent on scsi command */
-
+
#ifdef IM_DEBUG_CMD
printk("issue scsi cmd=%02x to ldn=%d\n", scsi_cmd, ldn);
#endif
-
+
/* for specific device-type debugging: */
#ifdef IM_DEBUG_CMD_SPEC_DEV
if (ld(host_index)[ldn].device_type==IM_DEBUG_CMD_DEVICE)
- printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n",
+ printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n",
ld(host_index)[ldn].device_type, scsi_cmd, ldn);
#endif
-
+
/* for possible panics store current command */
- last_scsi_command(host_index)[ldn] = scsi_cmd;
- last_scsi_type(host_index)[ldn] = IM_SCB;
+ last_scsi_command(host_index)[ldn] = scsi_cmd;
+ last_scsi_type(host_index)[ldn] = IM_SCB;
/* update statistical info */
IBM_DS(host_index).total_accesses++;
IBM_DS(host_index).ldn_access[ldn]++;
-
- switch (scsi_cmd)
- {
- case READ_6:
- case WRITE_6:
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
- /* Distinguish between disk and other devices. Only disks (that are the
- most frequently accessed devices) should be supported by the
- IBM-SCSI-Subsystem commands. */
- switch (ld(host_index)[ldn].device_type)
- {
- case TYPE_DISK: /* for harddisks enter here ... */
- case TYPE_MOD: /* ... try it also for MO-drives (send flames as */
- /* you like, if this won't work.) */
- if (scsi_cmd == READ_6 || scsi_cmd == READ_10 ||
- scsi_cmd == READ_12)
- { /* read command preparations */
- scb->enable |= IM_READ_CONTROL;
- IBM_DS(host_index).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */
- if (bypass_controller)
- {
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy(scb->u2.scsi_command,cmd->cmnd,cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT;
- }
- else
- { /* write command preparations */
- IBM_DS(host_index).ldn_write_access[ldn]++; /* increase write-count on ldn stat.*/
- if (bypass_controller)
- {
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy(scb->u2.scsi_command,cmd->cmnd,cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT;
- }
-
- if (!bypass_controller)
- {
- if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6)
- {
- scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[3]) << 0) |
- (((unsigned) cmd->cmnd[2]) << 8) |
- ((((unsigned) cmd->cmnd[1]) & 0x1f) << 16);
- scb->u2.blk.count = (unsigned) cmd->cmnd[4];
- }
- else
- {
- scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[5]) << 0) |
- (((unsigned) cmd->cmnd[4]) << 8) |
- (((unsigned) cmd->cmnd[3]) << 16) |
- (((unsigned) cmd->cmnd[2]) << 24);
- scb->u2.blk.count = (((unsigned) cmd->cmnd[8]) << 0) |
- (((unsigned) cmd->cmnd[7]) << 8);
- }
- last_scsi_logical_block(host_index)[ldn] = scb->u1.log_blk_adr;
- last_scsi_blockcount(host_index)[ldn] = scb->u2.blk.count;
- scb->u2.blk.length = ld(host_index)[ldn].block_length;
- }
- if (++disk_rw_in_progress == 1)
- PS2_DISK_LED_ON (shpnt->host_no, target);
- break;
-
- /* for other devices, enter here. Other types are not known by
- Linux! TYPE_NO_LUN is forbidden as valid device. */
- case TYPE_ROM:
- case TYPE_TAPE:
- case TYPE_PROCESSOR:
- case TYPE_WORM:
- case TYPE_SCANNER:
- case TYPE_MEDIUM_CHANGER:
- /* If there is a sequential-device, IBM recommends to use
- IM_OTHER_SCSI_CMD_CMD instead of subsystem READ/WRITE.
- Good/modern CD-ROM-drives are capable of
- reading sequential AND random-access. This leads to the problem,
- that random-accesses are covered by the subsystem, but
- sequentials are not, as like for tape-drives. Therefore, it is
- the easiest way to use IM_OTHER_SCSI_CMD_CMD for all read-ops
- on CD-ROM-drives in order not to run into timing problems and
- to have a stable state. In addition, data-access on CD-ROMs
- works faster like that. Strange, but obvious. */
-
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- if (scsi_cmd == READ_6 || scsi_cmd == READ_10 ||
- scsi_cmd == READ_12) /* enable READ */
- scb->enable |= IM_READ_CONTROL;
- scb->enable |= IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
-
- /* Read/write on this non-disk devices is also displayworthy,
- so flash-up the LED/display. */
- if (++disk_rw_in_progress == 1)
- PS2_DISK_LED_ON (shpnt->host_no, target);
- break;
- }
- break;
- case INQUIRY:
- IBM_DS(host_index).ldn_inquiry_access[ldn]++;
- if (bypass_controller)
- {
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.log_blk_adr = 0;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- {
- scb->command = IM_DEVICE_INQUIRY_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT;
- scb->u1.log_blk_adr = 0;
- }
- break;
- case TEST_UNIT_READY:
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.log_blk_adr = 0;
- scb->u1.scsi_cmd_length = 6;
- memcpy (scb->u2.scsi_command, cmd->cmnd, 6);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- break;
- case READ_CAPACITY:
- /* the length of system memory buffer must be exactly 8 bytes */
- if (scb->sys_buf_length > 8)
- scb->sys_buf_length = 8;
- if (bypass_controller)
- {
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- {
- scb->command = IM_READ_CAPACITY_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT;
- }
- break;
-
+
+ switch (scsi_cmd) {
+ case READ_6:
+ case WRITE_6:
+ case READ_10:
+ case WRITE_10:
+ case READ_12:
+ case WRITE_12:
+ /* Distinguish between disk and other devices. Only disks (that are the
+ most frequently accessed devices) should be supported by the
+ IBM-SCSI-Subsystem commands. */
+ switch (ld(host_index)[ldn].device_type) {
+ case TYPE_DISK: /* for harddisks enter here ... */
+ case TYPE_MOD: /* ... try it also for MO-drives (send flames as */
+ /* you like, if this won't work.) */
+ if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12) {
+ /* read command preparations */
+ scb->enable |= IM_READ_CONTROL;
+ IBM_DS(host_index).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */
+ scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT;
+ } else { /* write command preparations */
+ IBM_DS(host_index).ldn_write_access[ldn]++; /* increase write-count on ldn stat.*/
+ scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT;
+ }
+ if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6) {
+ scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[3]) << 0) |
+ (((unsigned) cmd->cmnd[2]) << 8) |
+ ((((unsigned) cmd->cmnd[1]) & 0x1f) << 16);
+ scb->u2.blk.count = (unsigned) cmd->cmnd[4];
+ } else {
+ scb->u1.log_blk_adr = (((unsigned) cmd->cmnd[5]) << 0) |
+ (((unsigned) cmd->cmnd[4]) << 8) |
+ (((unsigned) cmd->cmnd[3]) << 16) |
+ (((unsigned) cmd->cmnd[2]) << 24);
+ scb->u2.blk.count = (((unsigned) cmd->cmnd[8]) << 0) |
+ (((unsigned) cmd->cmnd[7]) << 8);
+ }
+ last_scsi_logical_block(host_index)[ldn] = scb->u1.log_blk_adr;
+ last_scsi_blockcount(host_index)[ldn] = scb->u2.blk.count;
+ scb->u2.blk.length = ld(host_index)[ldn].block_length;
+ break;
+ /* for other devices, enter here. Other types are not known by
+ Linux! TYPE_NO_LUN is forbidden as valid device. */
+ case TYPE_ROM:
+ case TYPE_TAPE:
+ case TYPE_PROCESSOR:
+ case TYPE_WORM:
+ case TYPE_SCANNER:
+ case TYPE_MEDIUM_CHANGER:
+ /* If there is a sequential-device, IBM recommends to use
+ IM_OTHER_SCSI_CMD_CMD instead of subsystem READ/WRITE.
+ This includes CD-ROM devices, too, due to the partial sequential
+ read capabilities. */
+ scb->command = IM_OTHER_SCSI_CMD_CMD;
+ if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12)
+ /* enable READ */
+ scb->enable |= IM_READ_CONTROL;
+ scb->enable |= IM_BYPASS_BUFFER;
+ scb->u1.scsi_cmd_length = cmd->cmd_len;
+ memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
+ last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
+ /* Read/write on this non-disk devices is also displayworthy,
+ so flash-up the LED/display. */
+ break;
+ }
+ break;
+ case INQUIRY:
+ IBM_DS(host_index).ldn_inquiry_access[ldn]++;
+ scb->command = IM_DEVICE_INQUIRY_CMD;
+ scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
+ scb->u1.log_blk_adr = 0;
+ break;
+ case TEST_UNIT_READY:
+ scb->command = IM_OTHER_SCSI_CMD_CMD;
+ scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
+ scb->u1.log_blk_adr = 0;
+ scb->u1.scsi_cmd_length = 6;
+ memcpy (scb->u2.scsi_command, cmd->cmnd, 6);
+ last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
+ break;
+ case READ_CAPACITY:
+ /* the length of system memory buffer must be exactly 8 bytes */
+ scb->command = IM_READ_CAPACITY_CMD;
+ scb->enable |= IM_READ_CONTROL | IM_BYPASS_BUFFER;
+ if (scb->sys_buf_length > 8) scb->sys_buf_length = 8;
+ break;
/* Commands that need read-only-mode (system <- device): */
- case REQUEST_SENSE:
- if (bypass_controller)
- {
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- }
- else
- {
- scb->command = IM_REQUEST_SENSE_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT;
- }
- break;
-
+ case REQUEST_SENSE:
+ scb->command = IM_REQUEST_SENSE_CMD;
+ scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
+ break;
/* Commands that need write-only-mode (system -> device): */
- case MODE_SELECT:
- case MODE_SELECT_10:
- IBM_DS(host_index).ldn_modeselect_access[ldn]++;
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled*/
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- break;
-
- /* For other commands, read-only is useful. Most other commands are
- running without an input-data-block. */
- default:
- scb->command = IM_OTHER_SCSI_CMD_CMD;
- scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
- scb->u1.scsi_cmd_length = cmd->cmd_len;
- memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
- last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
- break;
- }
+ case MODE_SELECT:
+ case MODE_SELECT_10:
+ IBM_DS(host_index).ldn_modeselect_access[ldn]++;
+ scb->command = IM_OTHER_SCSI_CMD_CMD;
+ scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled*/
+ scb->u1.scsi_cmd_length = cmd->cmd_len;
+ memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
+ last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
+ break;
+ /* For other commands, read-only is useful. Most other commands are
+ running without an input-data-block. */
+ default:
+ scb->command = IM_OTHER_SCSI_CMD_CMD;
+ scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
+ scb->u1.scsi_cmd_length = cmd->cmd_len;
+ memcpy (scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
+ last_scsi_type(host_index)[ldn] = IM_LONG_SCB;
+ break;
+ }
/*issue scb command, and return */
- if (last_scsi_type(host_index)[ldn] == IM_LONG_SCB)
- {
- issue_cmd (host_index, virt_to_bus(scb), IM_LONG_SCB | ldn);
- IBM_DS(host_index).long_scbs++;
- }
- else
- {
- issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
- IBM_DS(host_index).scbs++;
- }
+ if (++disk_rw_in_progress == 1)
+ PS2_DISK_LED_ON (shpnt->host_no, target);
+
+ if (last_scsi_type(host_index)[ldn] == IM_LONG_SCB) {
+ issue_cmd (host_index, virt_to_bus(scb), IM_LONG_SCB | ldn);
+ IBM_DS(host_index).long_scbs++;
+ } else {
+ issue_cmd (host_index, virt_to_bus(scb), IM_SCB | ldn);
+ IBM_DS(host_index).scbs++;
+ }
return 0;
}
-/*--------------------------------------------------------------------*/
-
int ibmmca_abort (Scsi_Cmnd * cmd)
{
/* Abort does not work, as the adapter never generates an interrupt on
* whatever situation is simulated, even when really pending commands
* are running on the adapters' hardware ! */
-
+
struct Scsi_Host *shpnt;
unsigned int ldn;
void (*saved_done) (Scsi_Cmnd *);
@@ -2807,59 +2192,48 @@
static unsigned long flags;
unsigned long imm_command;
- /* return SCSI_ABORT_SNOOZE ; */
-
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&abort_lock, flags);
-#endif
+#ifdef IM_DEBUG_PROBE
+ printk("IBM MCA SCSI: Abort subroutine called...\n");
+#endif
+ IBMLOCK
shpnt = cmd->host;
-
/* search for the right hostadapter */
- for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++);
-
- if (!hosts[host_index])
- { /* invalid hostadapter descriptor address */
- cmd->result = DID_NO_CONNECT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- return SCSI_ABORT_SNOOZE;
- }
-
+ for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++);
+
+ if (!hosts[host_index]) { /* invalid hostadapter descriptor address */
+ cmd->result = DID_NO_CONNECT << 16;
+ if (cmd->scsi_done) (cmd->scsi_done) (cmd);
+ shpnt = cmd->host;
+ IBMUNLOCK
+#ifdef IM_DEBUG_PROBE
+ printk("IBM MCA SCSI: Abort adapter selection failed!\n");
+#endif
+ return SCSI_ABORT_SNOOZE;
+ }
max_pun = subsystem_maxid(host_index);
-
- if (ibm_ansi_order)
- {
- target = max_pun - 1 - cmd->target;
- if ((target <= subsystem_pun(host_index))&&(cmd->target <= subsystem_pun(host_index)))
- target--;
- else if ((target >= subsystem_pun(host_index))&&(cmd->target >= subsystem_pun(host_index)))
- target++;
- }
- else
+ if (ibm_ansi_order) {
+ target = max_pun - 1 - cmd->target;
+ if ((target <= subsystem_pun(host_index))&&(cmd->target <= subsystem_pun(host_index)))
+ target--;
+ else if ((target >= subsystem_pun(host_index))&&(cmd->target >= subsystem_pun(host_index)))
+ target++;
+ } else
target = cmd->target;
-
- /*get logical device number, and disable system interrupts */
+
+ /* get logical device number, and disable system interrupts */
printk ("IBM MCA SCSI: Sending abort to device pun=%d, lun=%d.\n",
target, cmd->lun);
ldn = get_ldn(host_index)[target][cmd->lun];
/*if cmd for this ldn has already finished, no need to abort */
- if (!ld(host_index)[ldn].cmd)
- {
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&abort_lock, flags);
-#endif
- return SCSI_ABORT_NOT_RUNNING;
- }
+ if (!ld(host_index)[ldn].cmd) {
+ IBMUNLOCK
+ return SCSI_ABORT_NOT_RUNNING;
+ }
- /* Clear ld.cmd, save done function, install internal done,
- * send abort immediate command (this enables sys. interrupts),
- * and wait until the interrupt arrives.
+ /* Clear ld.cmd, save done function, install internal done,
+ * send abort immediate command (this enables sys. interrupts),
+ * and wait until the interrupt arrives.
*/
saved_done = cmd->scsi_done;
cmd->scsi_done = internal_done;
@@ -2870,64 +2244,49 @@
imm_command &= (unsigned long)(0xffff0000); /* mask reserved stuff */
imm_command |= (unsigned long)(IM_ABORT_IMM_CMD);
/* must wait for attention reg not busy */
- while (1)
- {
- if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY))
- break;
-#ifdef OLDKERN
- restore_flags (flags);
-#else
- spin_unlock_irqrestore(&abort_lock, flags);
-#endif
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&abort_lock, flags);
-#endif
- }
- /*write registers and enable system interrupts */
+ while (1) {
+ if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY))
+ break;
+ IBMUNLOCK
+ IBMLOCK
+ }
+ /* write registers and enable system interrupts */
outl (imm_command, IM_CMD_REG(host_index));
outb (IM_IMM_CMD | ldn, IM_ATTN_REG(host_index));
-#ifdef OLDKERN
- restore_flags (flags);
-#else
- spin_unlock_irqrestore(&abort_lock, flags);
+ IBMUNLOCK
+#ifdef IM_DEBUG_PROBE
+ printk("IBM MCA SCSI: Abort queued to adapter...\n");
#endif
-
+ while (!cmd->SCp.Status) barrier ();
+ cmd->scsi_done = saved_done;
#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort submitted, waiting for adapter response...\n");
-#endif
- while (!cmd->SCp.Status)
- barrier ();
- cmd->scsi_done = saved_done;
- /*if abort went well, call saved done, then return success or error */
- if (cmd->result == (DID_ABORT << 16))
- {
- cmd->result |= DID_ABORT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- ld(host_index)[ldn].cmd = NULL;
+ printk("IBM MCA SCSI: Abort returned with adapter response...\n");
+#endif
+
+ /*if abort went well, call saved done, then return success or error */
+ if (cmd->result == (DID_ABORT << 16)) {
+ IBMLOCK
+ cmd->result |= DID_ABORT << 16;
+ if (cmd->scsi_done) (cmd->scsi_done) (cmd);
+ ld(host_index)[ldn].cmd = NULL;
+ IBMUNLOCK
#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort finished with success.\n");
-#endif
- return SCSI_ABORT_SUCCESS;
- }
- else
- {
- cmd->result |= DID_NO_CONNECT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- ld(host_index)[ldn].cmd = NULL;
+ printk("IBM MCA SCSI: Abort finished with success.\n");
+#endif
+ return SCSI_ABORT_SUCCESS;
+ } else {
+ IBMLOCK
+ cmd->result |= DID_NO_CONNECT << 16;
+ if (cmd->scsi_done) (cmd->scsi_done) (cmd);
+ ld(host_index)[ldn].cmd = NULL;
+ IBMUNLOCK
#ifdef IM_DEBUG_PROBE
- printk("IBM MCA SCSI: Abort failed.\n");
-#endif
- return SCSI_ABORT_ERROR;
- }
+ printk("IBM MCA SCSI: Abort failed.\n");
+#endif
+ return SCSI_ABORT_ERROR;
+ }
}
-/*--------------------------------------------------------------------*/
-
int ibmmca_reset (Scsi_Cmnd * cmd, unsigned int reset_flags)
{
struct Scsi_Host *shpnt;
@@ -2937,53 +2296,24 @@
static unsigned long flags;
unsigned long imm_command;
- if (cmd == NULL)
- {
- printk("IBM MCA SCSI: Reset called with NULL-command!\n");
- return(SCSI_RESET_SNOOZE);
- }
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&reset_lock, flags);
-#endif
+ if (cmd == NULL) {
+ printk("IBM MCA SCSI: Reset called with NULL-command!\n");
+ return(SCSI_RESET_SNOOZE);
+ }
+ IBMLOCK
ticks = IM_RESET_DELAY*HZ;
shpnt = cmd->host;
/* search for the right hostadapter */
for (host_index = 0; hosts[host_index] && hosts[host_index]->host_no != shpnt->host_no; host_index++);
- if (!hosts[host_index])
- { /* invalid hostadapter descriptor address */
- if (!local_checking_phase_flag(host_index))
- {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,132)
- if (flags & SCSI_RESET_SYNCHRONOUS)
- {
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
- cmd->result = DID_NO_CONNECT << 16;
- if (cmd->scsi_done)
- (cmd->scsi_done) (cmd);
- }
-#endif
- }
- return SCSI_ABORT_SNOOZE;
- }
+ if (!hosts[host_index]) /* invalid hostadapter descriptor address */
+ return SCSI_ABORT_SNOOZE;
- if (local_checking_phase_flag(host_index))
- {
- printk("IBM MCA SCSI: unable to reset while checking devices.\n");
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
- return SCSI_RESET_SNOOZE;
- }
+ if (local_checking_phase_flag(host_index)) {
+ printk("IBM MCA SCSI: unable to reset while checking devices.\n");
+ IBMUNLOCK
+ return SCSI_RESET_SNOOZE;
+ }
/* issue reset immediate command to subsystem, and wait for interrupt */
printk("IBM MCA SCSI: resetting all devices.\n");
@@ -2994,22 +2324,12 @@
imm_command &= (unsigned long)(0xffff0000); /* mask reserved stuff */
imm_command |= (unsigned long)(IM_RESET_IMM_CMD);
/* must wait for attention reg not busy */
- while (1)
- {
- if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY))
- break;
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&reset_lock, flags);
-#endif
- }
+ while (1) {
+ if (!(inb (IM_STAT_REG(host_index)) & IM_BUSY))
+ break;
+ IBMUNLOCK
+ IBMLOCK
+ }
/*write registers and enable system interrupts */
outl (imm_command, IM_CMD_REG(host_index));
outb (IM_IMM_CMD | 0xf, IM_ATTN_REG(host_index));
@@ -3017,7 +2337,7 @@
* interrupt will not be executed, while we are in here! */
while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks
&& ((inb(IM_INTR_REG(host_index)) & 0x8f)!=0x8f)) {
- mdelay(1+999/HZ);
+ udelay((1+999/HZ)*1000);
barrier();
}
/* if reset did not complete, just return an error*/
@@ -3025,89 +2345,63 @@
printk("IBM MCA SCSI: reset did not complete within %d seconds.\n",
IM_RESET_DELAY);
reset_status(host_index) = IM_RESET_FINISHED_FAIL;
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
+ IBMUNLOCK
return SCSI_RESET_ERROR;
}
-
- if ((inb(IM_INTR_REG(host_index)) & 0x8f)==0x8f)
- { /* analysis done by this routine and not by the intr-routine */
- if (inb(IM_INTR_REG(host_index))==0xaf)
- reset_status(host_index) = IM_RESET_FINISHED_OK_NO_INT;
- else if (inb(IM_INTR_REG(host_index))==0xcf)
- reset_status(host_index) = IM_RESET_FINISHED_FAIL;
- else /* failed, 4get it */
- reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS_NO_INT;
- outb (IM_EOI | 0xf, IM_ATTN_REG(host_index));
- }
-
+
+ if ((inb(IM_INTR_REG(host_index)) & 0x8f)==0x8f) {
+ /* analysis done by this routine and not by the intr-routine */
+ if (inb(IM_INTR_REG(host_index))==0xaf)
+ reset_status(host_index) = IM_RESET_FINISHED_OK_NO_INT;
+ else if (inb(IM_INTR_REG(host_index))==0xcf)
+ reset_status(host_index) = IM_RESET_FINISHED_FAIL;
+ else /* failed, 4get it */
+ reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS_NO_INT;
+ outb (IM_EOI | 0xf, IM_ATTN_REG(host_index));
+ }
+
/* if reset failed, just return an error */
if (reset_status(host_index) == IM_RESET_FINISHED_FAIL) {
printk("IBM MCA SCSI: reset failed.\n");
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
+ IBMUNLOCK
return SCSI_RESET_ERROR;
}
-
+
/* so reset finished ok - call outstanding done's, and return success */
printk ("IBM MCA SCSI: Reset successfully completed.\n");
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&reset_lock, flags);
-#endif
- for (i = 0; i < MAX_LOG_DEV; i++)
- {
- cmd_aid = ld(host_index)[i].cmd;
- if (cmd_aid && cmd_aid->scsi_done)
- {
- ld(host_index)[i].cmd = NULL;
- cmd_aid->result = DID_RESET << 16;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,132)
- if (flags & SCSI_RESET_SYNCHRONOUS)
- {
- cmd_aid->result = DID_BUS_BUSY << 16;
- if (cmd_aid->scsi_done)
- (cmd_aid->scsi_done) (cmd_aid);
- }
-#endif
- }
- }
- if (flags & SCSI_RESET_SUGGEST_HOST_RESET)
+ IBMUNLOCK
+ for (i = 0; i < MAX_LOG_DEV; i++) {
+ cmd_aid = ld(host_index)[i].cmd;
+ if (cmd_aid && cmd_aid->scsi_done) {
+ ld(host_index)[i].cmd = NULL;
+ cmd_aid->result = DID_RESET << 16;
+ }
+ }
+ if (reset_flags & SCSI_RESET_SUGGEST_HOST_RESET)
return (SCSI_RESET_SUCCESS | SCSI_RESET_HOST_RESET);
- else if (flags & SCSI_RESET_SUGGEST_BUS_RESET)
+ else if (reset_flags & SCSI_RESET_SUGGEST_BUS_RESET)
return (SCSI_RESET_SUCCESS | SCSI_RESET_BUS_RESET);
else
return SCSI_RESET_SUCCESS;
}
-/*--------------------------------------------------------------------*/
-
int ibmmca_biosparam (Disk * disk, kdev_t dev, int *info)
{
info[0] = 64;
info[1] = 32;
info[2] = disk->capacity / (info[0] * info[1]);
- if (info[2] >= 1024)
- {
- info[0] = 128;
- info[1] = 63;
- info[2] = disk->capacity / (info[0] * info[1]);
- if (info[2] >= 1024)
- {
- info[0] = 255;
- info[1] = 63;
- info[2] = disk->capacity / (info[0] * info[1]);
- if (info[2] >= 1024)
- info[2] = 1023;
- }
- }
+ if (info[2] >= 1024) {
+ info[0] = 128;
+ info[1] = 63;
+ info[2] = disk->capacity / (info[0] * info[1]);
+ if (info[2] >= 1024) {
+ info[0] = 255;
+ info[1] = 63;
+ info[2] = disk->capacity / (info[0] * info[1]);
+ if (info[2] >= 1024)
+ info[2] = 1023;
+ }
+ }
return 0;
}
@@ -3124,7 +2418,7 @@
{
int a;
int i;
-
+
a = 0;
for (i=0; i<=MAX_LOG_DEV; i++)
a+=IBM_DS(host_index).ldn_read_access[i]+IBM_DS(host_index).ldn_write_access[i];
@@ -3135,7 +2429,7 @@
{
int a;
int i;
-
+
a = 0;
for (i=0; i<=MAX_LOG_DEV; i++)
a+=IBM_DS(host_index).ldn_inquiry_access[i];
@@ -3146,7 +2440,7 @@
{
int a;
int i;
-
+
a = 0;
for (i=0; i<=MAX_LOG_DEV; i++)
a+=IBM_DS(host_index).ldn_modeselect_access[i];
@@ -3162,23 +2456,17 @@
struct Scsi_Host *shpnt;
unsigned long flags;
int max_pun;
-
-#ifdef OLDKERN
- save_flags(flags);
- cli();
-#else
- spin_lock_irqsave(&proc_lock, flags);
-#endif
+ IBMLOCK
for (i = 0; hosts[i] && hosts[i]->host_no != hostno; i++);
shpnt = hosts[i];
host_index = i;
if (!shpnt) {
- len += sprintf(buffer+len, "\nIBM MCA SCSI: Can't find adapter for host number %d\n", hostno);
- return len;
+ len += sprintf(buffer+len, "\nIBM MCA SCSI: Can't find adapter for host number %d\n", hostno);
+ return len;
}
max_pun = subsystem_maxid(host_index);
-
+
len += sprintf(buffer+len, "\n IBM-SCSI-Subsystem-Linux-Driver, Version %s\n\n\n",
IBMMCA_SCSI_DRIVER_VERSION);
len += sprintf(buffer+len, " SCSI Access-Statistics:\n");
@@ -3195,16 +2483,14 @@
(unsigned int)(IM_CMD_REG(host_index)));
len += sprintf(buffer+len, " (Shared) IRQ.............: %d\n",
IM_IRQ);
- len += sprintf(buffer+len, " SCSI-command set used....: %s\n",
- (bypass_controller) ? "software" : "hardware integrated");
len += sprintf(buffer+len, " Total Interrupts.........: %d\n",
IBM_DS(host_index).total_interrupts);
- len += sprintf(buffer+len, " Total SCSI Accesses......: %d\n",
+ len += sprintf(buffer+len, " Total SCSI Accesses......: %d\n",
IBM_DS(host_index).total_accesses);
len += sprintf(buffer+len, " Total short SCBs.........: %d\n",
IBM_DS(host_index).scbs);
len += sprintf(buffer+len, " Total long SCBs..........: %d\n",
- IBM_DS(host_index).long_scbs);
+ IBM_DS(host_index).long_scbs);
len += sprintf(buffer+len, " Total SCSI READ/WRITE..: %d\n",
ldn_access_total_read_write(host_index));
len += sprintf(buffer+len, " Total SCSI Inquiries...: %d\n",
@@ -3221,48 +2507,40 @@
len += sprintf(buffer+len, " LDN | Accesses [%%] | READ | WRITE | ASSIGNMENTS\n");
len += sprintf(buffer+len, " -----|--------------|-----------|-----------|--------------\n");
for (i=0; i<=MAX_LOG_DEV; i++)
- len += sprintf(buffer+len, " %2X | %3d | %8d | %8d | %8d\n",
- i, ldn_access_load(host_index, i), IBM_DS(host_index).ldn_read_access[i],
- IBM_DS(host_index).ldn_write_access[i], IBM_DS(host_index).ldn_assignments[i]);
+ len += sprintf(buffer+len, " %2X | %3d | %8d | %8d | %8d\n",
+ i, ldn_access_load(host_index, i), IBM_DS(host_index).ldn_read_access[i],
+ IBM_DS(host_index).ldn_write_access[i], IBM_DS(host_index).ldn_assignments[i]);
len += sprintf(buffer+len, " -----------------------------------------------------------\n\n");
-
len += sprintf(buffer+len, " Dynamical-LDN-Assignment-Statistics:\n");
len += sprintf(buffer+len, " Number of physical SCSI-devices..: %d (+ Adapter)\n",
IBM_DS(host_index).total_scsi_devices);
- len += sprintf(buffer+len, " Dynamical Assignment necessary...: %s\n",
+ len += sprintf(buffer+len, " Dynamical Assignment necessary...: %s\n",
IBM_DS(host_index).dyn_flag ? "Yes" : "No ");
len += sprintf(buffer+len, " Next LDN to be assigned..........: 0x%x\n",
next_ldn(host_index));
len += sprintf(buffer+len, " Dynamical assignments done yet...: %d\n",
IBM_DS(host_index).dynamical_assignments);
-
len += sprintf(buffer+len, "\n Current SCSI-Device-Mapping:\n");
len += sprintf(buffer+len, " Physical SCSI-Device Map Logical SCSI-Device Map\n");
len += sprintf(buffer+len, " ID\\LUN 0 1 2 3 4 5 6 7 ID\\LUN 0 1 2 3 4 5 6 7\n");
- for (id=0; id<max_pun; id++)
- {
- len += sprintf(buffer+len, " %2d ",id);
- for (lun=0; lun<8; lun++)
- len += sprintf(buffer+len,"%2s ",ti_p(get_scsi(host_index)[id][lun]));
- len += sprintf(buffer+len, " %2d ",id);
- for (lun=0; lun<8; lun++)
- len += sprintf(buffer+len,"%2s ",ti_l(get_ldn(host_index)[id][lun]));
- len += sprintf(buffer+len,"\n");
- }
-
+ for (id=0; id<max_pun; id++) {
+ len += sprintf(buffer+len, " %2d ",id);
+ for (lun=0; lun<8; lun++)
+ len += sprintf(buffer+len,"%2s ",ti_p(get_scsi(host_index)[id][lun]));
+ len += sprintf(buffer+len, " %2d ",id);
+ for (lun=0; lun<8; lun++)
+ len += sprintf(buffer+len,"%2s ",ti_l(get_ldn(host_index)[id][lun]));
+ len += sprintf(buffer+len,"\n");
+ }
+
len += sprintf(buffer+len, "(A = IBM-Subsystem, D = Harddisk, T = Tapedrive, P = Processor, W = WORM,\n");
len += sprintf(buffer+len, " R = CD-ROM, S = Scanner, M = MO-Drive, C = Medium-Changer, + = unprovided LUN,\n");
len += sprintf(buffer+len, " - = nothing found, nothing assigned or unprobed LUN)\n\n");
-
+
*start = buffer + offset;
len -= offset;
- if (len > length)
- len = length;
-#ifdef OLDKERN
- restore_flags(flags);
-#else
- spin_unlock_irqrestore(&proc_lock, flags);
-#endif
+ if (len > length) len = length;
+ IBMUNLOCK
return len;
}
@@ -3276,24 +2554,21 @@
int ints[IM_MAX_HOSTS];
char *cur = str;
int i = 1;
-
+
while (cur && isdigit(*cur) && i <= IM_MAX_HOSTS) {
ints[i++] = simple_strtoul(cur, NULL, 0);
if ((cur = strchr(cur,',')) != NULL) cur++;
- }
+ }
ints[0] = i - 1;
internal_ibmmca_scsi_setup(cur, ints);
return 0;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,18)
__setup("ibmmcascsi=", option_setup);
-#endif
+#ifdef MODULE
/* Eventually this will go into an include file, but this will be later */
-static Scsi_Host_Template driver_template = IBMMCA;
+Scsi_Host_Template driver_template = IBMMCA;
#include "scsi_module.c"
-
-/*--------------------------------------------------------------------*/
-
+#endif
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)