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Commit 67b2009a authored by James Bottomley's avatar James Bottomley Committed by James Bottomley
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[SCSI] ibmmca: convert to new probing API and fix oopses 

This is basically a straight conversion.  I have one of these things, so
I know it works ... my problem is that it has a wierd SCA like
connector, so I can't connect anything to it (no cables).

However, previously it panic'd in the interrupt, now it completes a bus
scan.
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent a53eb5e0
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Showing with 563 additions and 705 deletions
drivers/scsi/Kconfig
View file @ 67b2009a
...@@ -738,7 +738,7 @@ config SCSI_GENERIC_NCR53C400 ...@@ -738,7 +738,7 @@ config SCSI_GENERIC_NCR53C400
config SCSI_IBMMCA config SCSI_IBMMCA
tristate "IBMMCA SCSI support" tristate "IBMMCA SCSI support"
depends on MCA_LEGACY && SCSI depends on MCA && SCSI
---help--- ---help---
This is support for the IBM SCSI adapter found in many of the PS/2 This is support for the IBM SCSI adapter found in many of the PS/2
series computers. These machines have an MCA bus, so you need to series computers. These machines have an MCA bus, so you need to
......
drivers/scsi/ibmmca.c
View file @ 67b2009a
...@@ -31,14 +31,21 @@ ...@@ -31,14 +31,21 @@
#include <linux/mca.h> #include <linux/mca.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/mca-legacy.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm/io.h> #include <asm/io.h>
#include "scsi.h" #include "scsi.h"
#include <scsi/scsi_host.h> #include <scsi/scsi_host.h>
#include "ibmmca.h"
/* Common forward declarations for all Linux-versions: */
static int ibmmca_queuecommand (Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
static int ibmmca_abort (Scsi_Cmnd *);
static int ibmmca_host_reset (Scsi_Cmnd *);
static int ibmmca_biosparam (struct scsi_device *, struct block_device *, sector_t, int *);
static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout);
/* current version of this driver-source: */ /* current version of this driver-source: */
#define IBMMCA_SCSI_DRIVER_VERSION "4.0b-ac" #define IBMMCA_SCSI_DRIVER_VERSION "4.0b-ac"
...@@ -65,11 +72,11 @@ ...@@ -65,11 +72,11 @@
#define IM_DEBUG_CMD_DEVICE TYPE_TAPE #define IM_DEBUG_CMD_DEVICE TYPE_TAPE
/* relative addresses of hardware registers on a subsystem */ /* relative addresses of hardware registers on a subsystem */
#define IM_CMD_REG(hi) (hosts[(hi)]->io_port) /*Command Interface, (4 bytes long) */ #define IM_CMD_REG(h) ((h)->io_port) /*Command Interface, (4 bytes long) */
#define IM_ATTN_REG(hi) (hosts[(hi)]->io_port+4) /*Attention (1 byte) */ #define IM_ATTN_REG(h) ((h)->io_port+4) /*Attention (1 byte) */
#define IM_CTR_REG(hi) (hosts[(hi)]->io_port+5) /*Basic Control (1 byte) */ #define IM_CTR_REG(h) ((h)->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_INTR_REG(h) ((h)->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_STAT_REG(h) ((h)->io_port+7) /*Basic Status (1 byte, read only) */
/* basic I/O-port of first adapter */ /* basic I/O-port of first adapter */
#define IM_IO_PORT 0x3540 #define IM_IO_PORT 0x3540
...@@ -266,30 +273,36 @@ static int global_adapter_speed = 0; /* full speed by default */ ...@@ -266,30 +273,36 @@ static int global_adapter_speed = 0; /* full speed by default */
if ((display_mode & LED_ACTIVITY)||(!display_mode)) \ if ((display_mode & LED_ACTIVITY)||(!display_mode)) \
outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); } outb(inb(PS2_SYS_CTR) & 0x3f, PS2_SYS_CTR); }
/*list of supported subsystems */
struct subsys_list_struct {
unsigned short mca_id;
char *description;
};
/* types of different supported hardware that goes to hostdata special */ /* types of different supported hardware that goes to hostdata special */
#define IBM_SCSI2_FW 0 #define IBM_SCSI2_FW 0
#define IBM_7568_WCACHE 1 #define IBM_7568_WCACHE 1
#define IBM_EXP_UNIT 2 #define IBM_EXP_UNIT 2
#define IBM_SCSI_WCACHE 3 #define IBM_SCSI_WCACHE 3
#define IBM_SCSI 4 #define IBM_SCSI 4
#define IBM_INTEGSCSI 5
/* other special flags for hostdata structure */ /* other special flags for hostdata structure */
#define FORCED_DETECTION 100 #define FORCED_DETECTION 100
#define INTEGRATED_SCSI 101 #define INTEGRATED_SCSI 101
/* List of possible IBM-SCSI-adapters */ /* List of possible IBM-SCSI-adapters */
static struct subsys_list_struct subsys_list[] = { static short ibmmca_id_table[] = {
{0x8efc, "IBM SCSI-2 F/W Adapter"}, /* special = 0 */ 0x8efc,
{0x8efd, "IBM 7568 Industrial Computer SCSI Adapter w/Cache"}, /* special = 1 */ 0x8efd,
{0x8ef8, "IBM Expansion Unit SCSI Controller"}, /* special = 2 */ 0x8ef8,
{0x8eff, "IBM SCSI Adapter w/Cache"}, /* special = 3 */ 0x8eff,
{0x8efe, "IBM SCSI Adapter"}, /* special = 4 */ 0x8efe,
/* No entry for integrated SCSI, that's part of the register */
0
};
static const char *ibmmca_description[] = {
"IBM SCSI-2 F/W Adapter", /* special = 0 */
"IBM 7568 Industrial Computer SCSI Adapter w/Cache", /* special = 1 */
"IBM Expansion Unit SCSI Controller", /* special = 2 */
"IBM SCSI Adapter w/Cache", /* special = 3 */
"IBM SCSI Adapter", /* special = 4 */
"IBM Integrated SCSI Controller", /* special = 5 */
}; };
/* Max number of logical devices (can be up from 0 to 14). 15 is the address /* Max number of logical devices (can be up from 0 to 14). 15 is the address
...@@ -375,30 +388,30 @@ struct ibmmca_hostdata { ...@@ -375,30 +388,30 @@ struct ibmmca_hostdata {
}; };
/* macros to access host data structure */ /* macros to access host data structure */
#define subsystem_pun(hi) (hosts[(hi)]->this_id) #define subsystem_pun(h) ((h)->this_id)
#define subsystem_maxid(hi) (hosts[(hi)]->max_id) #define subsystem_maxid(h) ((h)->max_id)
#define ld(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_ld) #define ld(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_ld)
#define get_ldn(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_get_ldn) #define get_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_ldn)
#define get_scsi(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_get_scsi) #define get_scsi(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_get_scsi)
#define local_checking_phase_flag(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_local_checking_phase_flag) #define local_checking_phase_flag(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_local_checking_phase_flag)
#define got_interrupt(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_got_interrupt) #define got_interrupt(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_got_interrupt)
#define stat_result(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_stat_result) #define stat_result(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_stat_result)
#define reset_status(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_reset_status) #define reset_status(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_reset_status)
#define last_scsi_command(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_command) #define last_scsi_command(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_command)
#define last_scsi_type(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_type) #define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type)
#define last_scsi_blockcount(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_blockcount) #define last_scsi_blockcount(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_blockcount)
#define last_scsi_logical_block(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_logical_block) #define last_scsi_logical_block(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_logical_block)
#define last_scsi_type(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_last_scsi_type) #define last_scsi_type(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_last_scsi_type)
#define next_ldn(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_next_ldn) #define next_ldn(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_next_ldn)
#define IBM_DS(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_IBM_DS) #define IBM_DS(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_IBM_DS)
#define special(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_special) #define special(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_special)
#define subsystem_connector_size(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_connector_size) #define subsystem_connector_size(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_connector_size)
#define adapter_speed(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_adapter_speed) #define adapter_speed(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_adapter_speed)
#define pos2(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[2]) #define pos2(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[2])
#define pos3(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[3]) #define pos3(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[3])
#define pos4(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[4]) #define pos4(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[4])
#define pos5(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[5]) #define pos5(h) (((struct ibmmca_hostdata *) (h)->hostdata)->_pos[5])
#define pos6(hi) (((struct ibmmca_hostdata *) hosts[(hi)]->hostdata)->_pos[6]) #define pos6(h) (((struct ibmmca_hostdata *) (h)->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. */ described in the ANSI-SCSI-standard, not occupied by other device-types. */
...@@ -459,11 +472,6 @@ MODULE_LICENSE("GPL"); ...@@ -459,11 +472,6 @@ MODULE_LICENSE("GPL");
/*counter of concurrent disk read/writes, to turn on/off disk led */ /*counter of concurrent disk read/writes, to turn on/off disk led */
static int disk_rw_in_progress = 0; static int disk_rw_in_progress = 0;
/* 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 unsigned int pos[8]; /* whole pos register-line for diagnosis */ static unsigned int pos[8]; /* whole pos register-line for diagnosis */
/* Taking into account the additions, made by ZP Gu. /* Taking into account the additions, made by ZP Gu.
* This selects now the preset value from the configfile and * This selects now the preset value from the configfile and
...@@ -474,70 +482,68 @@ static char ibm_ansi_order = 1; ...@@ -474,70 +482,68 @@ static char ibm_ansi_order = 1;
static char ibm_ansi_order = 0; static char ibm_ansi_order = 0;
#endif #endif
static void issue_cmd(int, unsigned long, unsigned char); static void issue_cmd(struct Scsi_Host *, unsigned long, unsigned char);
static void internal_done(Scsi_Cmnd * cmd); static void internal_done(Scsi_Cmnd * cmd);
static void check_devices(int, int); static void check_devices(struct Scsi_Host *, int);
static int immediate_assign(int, unsigned int, unsigned int, unsigned int, unsigned int); static int immediate_assign(struct Scsi_Host *, unsigned int, unsigned int, unsigned int, unsigned int);
static int immediate_feature(int, unsigned int, unsigned int); static int immediate_feature(struct Scsi_Host *, unsigned int, unsigned int);
#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
static int immediate_reset(int, unsigned int); static int immediate_reset(struct Scsi_Host *, unsigned int);
#endif #endif
static int device_inquiry(int, int); static int device_inquiry(struct Scsi_Host *, int);
static int read_capacity(int, int); static int read_capacity(struct Scsi_Host *, int);
static int get_pos_info(int); static int get_pos_info(struct Scsi_Host *);
static char *ti_p(int); static char *ti_p(int);
static char *ti_l(int); static char *ti_l(int);
static char *ibmrate(unsigned int, int); static char *ibmrate(unsigned int, int);
static int probe_display(int); static int probe_display(int);
static int probe_bus_mode(int); static int probe_bus_mode(struct Scsi_Host *);
static int device_exists(int, int, int *, int *); static int device_exists(struct Scsi_Host *, int, int *, int *);
static struct Scsi_Host *ibmmca_register(struct scsi_host_template *, int, int, int, char *);
static int option_setup(char *); static int option_setup(char *);
/* local functions needed for proc_info */ /* local functions needed for proc_info */
static int ldn_access_load(int, int); static int ldn_access_load(struct Scsi_Host *, int);
static int ldn_access_total_read_write(int); static int ldn_access_total_read_write(struct Scsi_Host *);
static irqreturn_t interrupt_handler(int irq, void *dev_id) static irqreturn_t interrupt_handler(int irq, void *dev_id)
{ {
int host_index, ihost_index;
unsigned int intr_reg; unsigned int intr_reg;
unsigned int cmd_result; unsigned int cmd_result;
unsigned int ldn; unsigned int ldn;
unsigned long flags;
Scsi_Cmnd *cmd; Scsi_Cmnd *cmd;
int lastSCSI; int lastSCSI;
struct Scsi_Host *dev = dev_id; struct device *dev = dev_id;
struct Scsi_Host *shpnt = dev_get_drvdata(dev);
spin_lock_irqsave(shpnt->host_lock, flags);
spin_lock(dev->host_lock); if(!(inb(IM_STAT_REG(shpnt)) & IM_INTR_REQUEST)) {
/* search for one adapter-response on shared interrupt */ spin_unlock_irqrestore(shpnt->host_lock, flags);
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]) {
spin_unlock(dev->host_lock);
return IRQ_NONE; return IRQ_NONE;
} }
/* the reset-function already did all the job, even ints got /* the reset-function already did all the job, even ints got
renabled on the subsystem, so just return */ 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)) { if ((reset_status(shpnt) == IM_RESET_NOT_IN_PROGRESS_NO_INT) || (reset_status(shpnt) == IM_RESET_FINISHED_OK_NO_INT)) {
reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS; reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS;
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
/*must wait for attention reg not busy, then send EOI to subsystem */ /*must wait for attention reg not busy, then send EOI to subsystem */
while (1) { while (1) {
if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
break; break;
cpu_relax(); cpu_relax();
} }
ihost_index = host_index;
/*get command result and logical device */ /*get command result and logical device */
intr_reg = (unsigned char) (inb(IM_INTR_REG(ihost_index))); intr_reg = (unsigned char) (inb(IM_INTR_REG(shpnt)));
cmd_result = intr_reg & 0xf0; cmd_result = intr_reg & 0xf0;
ldn = intr_reg & 0x0f; ldn = intr_reg & 0x0f;
/* get the last_scsi_command here */ /* get the last_scsi_command here */
lastSCSI = last_scsi_command(ihost_index)[ldn]; lastSCSI = last_scsi_command(shpnt)[ldn];
outb(IM_EOI | ldn, IM_ATTN_REG(ihost_index)); outb(IM_EOI | ldn, IM_ATTN_REG(shpnt));
/*these should never happen (hw fails, or a local programming bug) */ /*these should never happen (hw fails, or a local programming bug) */
if (!global_command_error_excuse) { if (!global_command_error_excuse) {
...@@ -547,38 +553,38 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id) ...@@ -547,38 +553,38 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id)
case IM_SOFTWARE_SEQUENCING_ERROR: case IM_SOFTWARE_SEQUENCING_ERROR:
case IM_CMD_ERROR: case IM_CMD_ERROR:
printk(KERN_ERR "IBM MCA SCSI: Fatal Subsystem ERROR!\n"); printk(KERN_ERR "IBM MCA SCSI: Fatal Subsystem ERROR!\n");
printk(KERN_ERR " Last cmd=0x%x, ena=%x, len=", lastSCSI, ld(ihost_index)[ldn].scb.enable); printk(KERN_ERR " Last cmd=0x%x, ena=%x, len=", lastSCSI, ld(shpnt)[ldn].scb.enable);
if (ld(ihost_index)[ldn].cmd) if (ld(shpnt)[ldn].cmd)
printk("%ld/%ld,", (long) (ld(ihost_index)[ldn].cmd->request_bufflen), (long) (ld(ihost_index)[ldn].scb.sys_buf_length)); printk("%ld/%ld,", (long) (ld(shpnt)[ldn].cmd->request_bufflen), (long) (ld(shpnt)[ldn].scb.sys_buf_length));
else else
printk("none,"); printk("none,");
if (ld(ihost_index)[ldn].cmd) if (ld(shpnt)[ldn].cmd)
printk("Blocksize=%d", ld(ihost_index)[ldn].scb.u2.blk.length); printk("Blocksize=%d", ld(shpnt)[ldn].scb.u2.blk.length);
else else
printk("Blocksize=none"); printk("Blocksize=none");
printk(", host=0x%x, ldn=0x%x\n", ihost_index, ldn); printk(", host=%p, ldn=0x%x\n", shpnt, ldn);
if (ld(ihost_index)[ldn].cmd) { if (ld(shpnt)[ldn].cmd) {
printk(KERN_ERR "Blockcount=%d/%d\n", last_scsi_blockcount(ihost_index)[ldn], ld(ihost_index)[ldn].scb.u2.blk.count); printk(KERN_ERR "Blockcount=%d/%d\n", last_scsi_blockcount(shpnt)[ldn], ld(shpnt)[ldn].scb.u2.blk.count);
printk(KERN_ERR "Logical block=%lx/%lx\n", last_scsi_logical_block(ihost_index)[ldn], ld(ihost_index)[ldn].scb.u1.log_blk_adr); printk(KERN_ERR "Logical block=%lx/%lx\n", last_scsi_logical_block(shpnt)[ldn], ld(shpnt)[ldn].scb.u1.log_blk_adr);
} }
printk(KERN_ERR "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"); printk(KERN_ERR "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 */ /* if errors appear, enter this section to give detailed info */
printk(KERN_ERR "IBM MCA SCSI: Subsystem Error-Status follows:\n"); printk(KERN_ERR "IBM MCA SCSI: Subsystem Error-Status follows:\n");
printk(KERN_ERR " Command Type................: %x\n", last_scsi_type(ihost_index)[ldn]); printk(KERN_ERR " Command Type................: %x\n", last_scsi_type(shpnt)[ldn]);
printk(KERN_ERR " Attention Register..........: %x\n", inb(IM_ATTN_REG(ihost_index))); printk(KERN_ERR " Attention Register..........: %x\n", inb(IM_ATTN_REG(shpnt)));
printk(KERN_ERR " Basic Control Register......: %x\n", inb(IM_CTR_REG(ihost_index))); printk(KERN_ERR " Basic Control Register......: %x\n", inb(IM_CTR_REG(shpnt)));
printk(KERN_ERR " Interrupt Status Register...: %x\n", intr_reg); printk(KERN_ERR " Interrupt Status Register...: %x\n", intr_reg);
printk(KERN_ERR " Basic Status Register.......: %x\n", inb(IM_STAT_REG(ihost_index))); printk(KERN_ERR " Basic Status Register.......: %x\n", inb(IM_STAT_REG(shpnt)));
if ((last_scsi_type(ihost_index)[ldn] == IM_SCB) || (last_scsi_type(ihost_index)[ldn] == IM_LONG_SCB)) { if ((last_scsi_type(shpnt)[ldn] == IM_SCB) || (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB)) {
printk(KERN_ERR " SCB-Command.................: %x\n", ld(ihost_index)[ldn].scb.command); printk(KERN_ERR " SCB-Command.................: %x\n", ld(shpnt)[ldn].scb.command);
printk(KERN_ERR " SCB-Enable..................: %x\n", ld(ihost_index)[ldn].scb.enable); printk(KERN_ERR " SCB-Enable..................: %x\n", ld(shpnt)[ldn].scb.enable);
printk(KERN_ERR " SCB-logical block address...: %lx\n", ld(ihost_index)[ldn].scb.u1.log_blk_adr); printk(KERN_ERR " SCB-logical block address...: %lx\n", ld(shpnt)[ldn].scb.u1.log_blk_adr);
printk(KERN_ERR " SCB-system buffer address...: %lx\n", ld(ihost_index)[ldn].scb.sys_buf_adr); printk(KERN_ERR " SCB-system buffer address...: %lx\n", ld(shpnt)[ldn].scb.sys_buf_adr);
printk(KERN_ERR " SCB-system buffer length....: %lx\n", ld(ihost_index)[ldn].scb.sys_buf_length); printk(KERN_ERR " SCB-system buffer length....: %lx\n", ld(shpnt)[ldn].scb.sys_buf_length);
printk(KERN_ERR " SCB-tsb address.............: %lx\n", ld(ihost_index)[ldn].scb.tsb_adr); printk(KERN_ERR " SCB-tsb address.............: %lx\n", ld(shpnt)[ldn].scb.tsb_adr);
printk(KERN_ERR " SCB-Chain address...........: %lx\n", ld(ihost_index)[ldn].scb.scb_chain_adr); printk(KERN_ERR " SCB-Chain address...........: %lx\n", ld(shpnt)[ldn].scb.scb_chain_adr);
printk(KERN_ERR " SCB-block count.............: %x\n", ld(ihost_index)[ldn].scb.u2.blk.count); printk(KERN_ERR " SCB-block count.............: %x\n", ld(shpnt)[ldn].scb.u2.blk.count);
printk(KERN_ERR " SCB-block length............: %x\n", ld(ihost_index)[ldn].scb.u2.blk.length); printk(KERN_ERR " SCB-block length............: %x\n", ld(shpnt)[ldn].scb.u2.blk.length);
} }
printk(KERN_ERR " Send this report to the maintainer.\n"); printk(KERN_ERR " Send this report to the maintainer.\n");
panic("IBM MCA SCSI: Fatal error message from the subsystem (0x%X,0x%X)!\n", lastSCSI, cmd_result); panic("IBM MCA SCSI: Fatal error message from the subsystem (0x%X,0x%X)!\n", lastSCSI, cmd_result);
...@@ -600,72 +606,73 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id) ...@@ -600,72 +606,73 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id)
} }
} }
/* if no panic appeared, increase the interrupt-counter */ /* if no panic appeared, increase the interrupt-counter */
IBM_DS(ihost_index).total_interrupts++; IBM_DS(shpnt).total_interrupts++;
/*only for local checking phase */ /*only for local checking phase */
if (local_checking_phase_flag(ihost_index)) { if (local_checking_phase_flag(shpnt)) {
stat_result(ihost_index) = cmd_result; stat_result(shpnt) = cmd_result;
got_interrupt(ihost_index) = 1; got_interrupt(shpnt) = 1;
reset_status(ihost_index) = IM_RESET_FINISHED_OK; reset_status(shpnt) = IM_RESET_FINISHED_OK;
last_scsi_command(ihost_index)[ldn] = NO_SCSI; last_scsi_command(shpnt)[ldn] = NO_SCSI;
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
/* handling of commands coming from upper level of scsi driver */ /* handling of commands coming from upper level of scsi driver */
if (last_scsi_type(ihost_index)[ldn] == IM_IMM_CMD) { if (last_scsi_type(shpnt)[ldn] == IM_IMM_CMD) {
/* verify ldn, and may handle rare reset immediate command */ /* 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 ((reset_status(shpnt) == IM_RESET_IN_PROGRESS) && (last_scsi_command(shpnt)[ldn] == IM_RESET_IMM_CMD)) {
if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) { if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
disk_rw_in_progress = 0; disk_rw_in_progress = 0;
PS2_DISK_LED_OFF(); PS2_DISK_LED_OFF();
reset_status(ihost_index) = IM_RESET_FINISHED_FAIL; reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
} else { } else {
/*reset disk led counter, turn off disk led */ /*reset disk led counter, turn off disk led */
disk_rw_in_progress = 0; disk_rw_in_progress = 0;
PS2_DISK_LED_OFF(); PS2_DISK_LED_OFF();
reset_status(ihost_index) = IM_RESET_FINISHED_OK; reset_status(shpnt) = IM_RESET_FINISHED_OK;
} }
stat_result(ihost_index) = cmd_result; stat_result(shpnt) = cmd_result;
last_scsi_command(ihost_index)[ldn] = NO_SCSI; last_scsi_command(shpnt)[ldn] = NO_SCSI;
last_scsi_type(ihost_index)[ldn] = 0; last_scsi_type(shpnt)[ldn] = 0;
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} else if (last_scsi_command(ihost_index)[ldn] == IM_ABORT_IMM_CMD) { } else if (last_scsi_command(shpnt)[ldn] == IM_ABORT_IMM_CMD) {
/* react on SCSI abort command */ /* react on SCSI abort command */
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n"); printk("IBM MCA SCSI: Interrupt from SCSI-abort.\n");
#endif #endif
disk_rw_in_progress = 0; disk_rw_in_progress = 0;
PS2_DISK_LED_OFF(); PS2_DISK_LED_OFF();
cmd = ld(ihost_index)[ldn].cmd; cmd = ld(shpnt)[ldn].cmd;
ld(ihost_index)[ldn].cmd = NULL; ld(shpnt)[ldn].cmd = NULL;
if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE)
cmd->result = DID_NO_CONNECT << 16; cmd->result = DID_NO_CONNECT << 16;
else else
cmd->result = DID_ABORT << 16; cmd->result = DID_ABORT << 16;
stat_result(ihost_index) = cmd_result; stat_result(shpnt) = cmd_result;
last_scsi_command(ihost_index)[ldn] = NO_SCSI; last_scsi_command(shpnt)[ldn] = NO_SCSI;
last_scsi_type(ihost_index)[ldn] = 0; last_scsi_type(shpnt)[ldn] = 0;
if (cmd->scsi_done) if (cmd->scsi_done)
(cmd->scsi_done) (cmd); /* should be the internal_done */ (cmd->scsi_done) (cmd); /* should be the internal_done */
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} else { } else {
disk_rw_in_progress = 0; disk_rw_in_progress = 0;
PS2_DISK_LED_OFF(); PS2_DISK_LED_OFF();
reset_status(ihost_index) = IM_RESET_FINISHED_OK; reset_status(shpnt) = IM_RESET_FINISHED_OK;
stat_result(ihost_index) = cmd_result; stat_result(shpnt) = cmd_result;
last_scsi_command(ihost_index)[ldn] = NO_SCSI; last_scsi_command(shpnt)[ldn] = NO_SCSI;
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
} }
last_scsi_command(ihost_index)[ldn] = NO_SCSI; last_scsi_command(shpnt)[ldn] = NO_SCSI;
last_scsi_type(ihost_index)[ldn] = 0; last_scsi_type(shpnt)[ldn] = 0;
cmd = ld(ihost_index)[ldn].cmd; cmd = ld(shpnt)[ldn].cmd;
ld(ihost_index)[ldn].cmd = NULL; ld(shpnt)[ldn].cmd = NULL;
#ifdef IM_DEBUG_TIMEOUT #ifdef IM_DEBUG_TIMEOUT
if (cmd) { if (cmd) {
if ((cmd->target == TIMEOUT_PUN) && (cmd->device->lun == TIMEOUT_LUN)) { if ((cmd->target == TIMEOUT_PUN) && (cmd->device->lun == TIMEOUT_LUN)) {
spin_unlock_irqsave(shpnt->host_lock, flags);
printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n", cmd->target, cmd->device->lun); printk("IBM MCA SCSI: Ignoring interrupt from pun=%x, lun=%x.\n", cmd->target, cmd->device->lun);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
...@@ -674,15 +681,15 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id) ...@@ -674,15 +681,15 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id)
/*if no command structure, just return, else clear cmd */ /*if no command structure, just return, else clear cmd */
if (!cmd) if (!cmd)
{ {
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
#ifdef IM_DEBUG_INT #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); printk("cmd=%02x ireg=%02x ds=%02x cs=%02x de=%02x ce=%02x\n", cmd->cmnd[0], intr_reg, ld(shpnt)[ldn].tsb.dev_status, ld(shpnt)[ldn].tsb.cmd_status, ld(shpnt)[ldn].tsb.dev_error, ld(shpnt)[ldn].tsb.cmd_error);
#endif #endif
/*if this is end of media read/write, may turn off PS/2 disk led */ /*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)) { if ((ld(shpnt)[ldn].device_type != TYPE_NO_LUN) && (ld(shpnt)[ldn].device_type != TYPE_NO_DEVICE)) {
/* only access this, if there was a valid device addressed */ /* only access this, if there was a valid device addressed */
if (--disk_rw_in_progress == 0) if (--disk_rw_in_progress == 0)
PS2_DISK_LED_OFF(); PS2_DISK_LED_OFF();
...@@ -693,8 +700,8 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id) ...@@ -693,8 +700,8 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id)
* adapters do not support CMD_TERMINATED, TASK_SET_FULL and * adapters do not support CMD_TERMINATED, TASK_SET_FULL and
* ACA_ACTIVE as returning statusbyte information. (ML) */ * ACA_ACTIVE as returning statusbyte information. (ML) */
if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) { if (cmd_result == IM_CMD_COMPLETED_WITH_FAILURE) {
cmd->result = (unsigned char) (ld(ihost_index)[ldn].tsb.dev_status & 0x1e); cmd->result = (unsigned char) (ld(shpnt)[ldn].tsb.dev_status & 0x1e);
IBM_DS(ihost_index).total_errors++; IBM_DS(shpnt).total_errors++;
} else } else
cmd->result = 0; cmd->result = 0;
/* write device status into cmd->result, and call done function */ /* write device status into cmd->result, and call done function */
...@@ -705,24 +712,25 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id) ...@@ -705,24 +712,25 @@ static irqreturn_t interrupt_handler(int irq, void *dev_id)
cmd->result |= DID_OK << 16; cmd->result |= DID_OK << 16;
if (cmd->scsi_done) if (cmd->scsi_done)
(cmd->scsi_done) (cmd); (cmd->scsi_done) (cmd);
spin_unlock(dev->host_lock); spin_unlock_irqrestore(shpnt->host_lock, flags);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
static void issue_cmd(int host_index, unsigned long cmd_reg, unsigned char attn_reg) static void issue_cmd(struct Scsi_Host *shpnt, unsigned long cmd_reg,
unsigned char attn_reg)
{ {
unsigned long flags; unsigned long flags;
/* must wait for attention reg not busy */ /* must wait for attention reg not busy */
while (1) { while (1) {
spin_lock_irqsave(hosts[host_index]->host_lock, flags); spin_lock_irqsave(shpnt->host_lock, flags);
if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
break; break;
spin_unlock_irqrestore(hosts[host_index]->host_lock, flags); spin_unlock_irqrestore(shpnt->host_lock, flags);
} }
/* write registers and enable system interrupts */ /* write registers and enable system interrupts */
outl(cmd_reg, IM_CMD_REG(host_index)); outl(cmd_reg, IM_CMD_REG(shpnt));
outb(attn_reg, IM_ATTN_REG(host_index)); outb(attn_reg, IM_ATTN_REG(shpnt));
spin_unlock_irqrestore(hosts[host_index]->host_lock, flags); spin_unlock_irqrestore(shpnt->host_lock, flags);
} }
static void internal_done(Scsi_Cmnd * cmd) static void internal_done(Scsi_Cmnd * cmd)
...@@ -732,34 +740,34 @@ static void internal_done(Scsi_Cmnd * cmd) ...@@ -732,34 +740,34 @@ static void internal_done(Scsi_Cmnd * cmd)
} }
/* SCSI-SCB-command for device_inquiry */ /* SCSI-SCB-command for device_inquiry */
static int device_inquiry(int host_index, int ldn) static int device_inquiry(struct Scsi_Host *shpnt, int ldn)
{ {
int retr; int retr;
struct im_scb *scb; struct im_scb *scb;
struct im_tsb *tsb; struct im_tsb *tsb;
unsigned char *buf; unsigned char *buf;
scb = &(ld(host_index)[ldn].scb); scb = &(ld(shpnt)[ldn].scb);
tsb = &(ld(host_index)[ldn].tsb); tsb = &(ld(shpnt)[ldn].tsb);
buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
ld(host_index)[ldn].tsb.dev_status = 0; /* prepare statusblock */ ld(shpnt)[ldn].tsb.dev_status = 0; /* prepare statusblock */
for (retr = 0; retr < 3; retr++) { for (retr = 0; retr < 3; retr++) {
/* fill scb with inquiry command */ /* fill scb with inquiry command */
scb->command = IM_DEVICE_INQUIRY_CMD | IM_NO_DISCONNECT; 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; 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_command(shpnt)[ldn] = IM_DEVICE_INQUIRY_CMD;
last_scsi_type(host_index)[ldn] = IM_SCB; last_scsi_type(shpnt)[ldn] = IM_SCB;
scb->sys_buf_adr = isa_virt_to_bus(buf); scb->sys_buf_adr = isa_virt_to_bus(buf);
scb->sys_buf_length = 255; /* maximum bufferlength gives max info */ scb->sys_buf_length = 255; /* maximum bufferlength gives max info */
scb->tsb_adr = isa_virt_to_bus(tsb); scb->tsb_adr = isa_virt_to_bus(tsb);
/* issue scb to passed ldn, and busy wait for interrupt */ /* issue scb to passed ldn, and busy wait for interrupt */
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
while (!got_interrupt(host_index)) while (!got_interrupt(shpnt))
barrier(); barrier();
/*if command successful, break */ /*if command successful, break */
if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED) || (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
return 1; return 1;
} }
/*if all three retries failed, return "no device at this ldn" */ /*if all three retries failed, return "no device at this ldn" */
...@@ -769,34 +777,34 @@ static int device_inquiry(int host_index, int ldn) ...@@ -769,34 +777,34 @@ static int device_inquiry(int host_index, int ldn)
return 1; return 1;
} }
static int read_capacity(int host_index, int ldn) static int read_capacity(struct Scsi_Host *shpnt, int ldn)
{ {
int retr; int retr;
struct im_scb *scb; struct im_scb *scb;
struct im_tsb *tsb; struct im_tsb *tsb;
unsigned char *buf; unsigned char *buf;
scb = &(ld(host_index)[ldn].scb); scb = &(ld(shpnt)[ldn].scb);
tsb = &(ld(host_index)[ldn].tsb); tsb = &(ld(shpnt)[ldn].tsb);
buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
ld(host_index)[ldn].tsb.dev_status = 0; ld(shpnt)[ldn].tsb.dev_status = 0;
for (retr = 0; retr < 3; retr++) { for (retr = 0; retr < 3; retr++) {
/*fill scb with read capacity command */ /*fill scb with read capacity command */
scb->command = IM_READ_CAPACITY_CMD; scb->command = IM_READ_CAPACITY_CMD;
scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_READ_CONTROL | IM_RETRY_ENABLE | IM_BYPASS_BUFFER; 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_command(shpnt)[ldn] = IM_READ_CAPACITY_CMD;
last_scsi_type(host_index)[ldn] = IM_SCB; last_scsi_type(shpnt)[ldn] = IM_SCB;
scb->sys_buf_adr = isa_virt_to_bus(buf); scb->sys_buf_adr = isa_virt_to_bus(buf);
scb->sys_buf_length = 8; scb->sys_buf_length = 8;
scb->tsb_adr = isa_virt_to_bus(tsb); scb->tsb_adr = isa_virt_to_bus(tsb);
/*issue scb to passed ldn, and busy wait for interrupt */ /*issue scb to passed ldn, and busy wait for interrupt */
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
while (!got_interrupt(host_index)) while (!got_interrupt(shpnt))
barrier(); barrier();
/*if got capacity, get block length and return one device found */ /*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)) if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
return 1; return 1;
} }
/*if all three retries failed, return "no device at this ldn" */ /*if all three retries failed, return "no device at this ldn" */
...@@ -806,39 +814,39 @@ static int read_capacity(int host_index, int ldn) ...@@ -806,39 +814,39 @@ static int read_capacity(int host_index, int ldn)
return 1; return 1;
} }
static int get_pos_info(int host_index) static int get_pos_info(struct Scsi_Host *shpnt)
{ {
int retr; int retr;
struct im_scb *scb; struct im_scb *scb;
struct im_tsb *tsb; struct im_tsb *tsb;
unsigned char *buf; unsigned char *buf;
scb = &(ld(host_index)[MAX_LOG_DEV].scb); scb = &(ld(shpnt)[MAX_LOG_DEV].scb);
tsb = &(ld(host_index)[MAX_LOG_DEV].tsb); tsb = &(ld(shpnt)[MAX_LOG_DEV].tsb);
buf = (unsigned char *) (&(ld(host_index)[MAX_LOG_DEV].buf)); buf = (unsigned char *) (&(ld(shpnt)[MAX_LOG_DEV].buf));
ld(host_index)[MAX_LOG_DEV].tsb.dev_status = 0; ld(shpnt)[MAX_LOG_DEV].tsb.dev_status = 0;
for (retr = 0; retr < 3; retr++) { for (retr = 0; retr < 3; retr++) {
/*fill scb with get_pos_info command */ /*fill scb with get_pos_info command */
scb->command = IM_GET_POS_INFO_CMD; scb->command = IM_GET_POS_INFO_CMD;
scb->enable = IM_READ_CONTROL | IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE | IM_BYPASS_BUFFER; 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_command(shpnt)[MAX_LOG_DEV] = IM_GET_POS_INFO_CMD;
last_scsi_type(host_index)[MAX_LOG_DEV] = IM_SCB; last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_SCB;
scb->sys_buf_adr = isa_virt_to_bus(buf); scb->sys_buf_adr = isa_virt_to_bus(buf);
if (special(host_index) == IBM_SCSI2_FW) if (special(shpnt) == IBM_SCSI2_FW)
scb->sys_buf_length = 256; /* get all info from F/W adapter */ scb->sys_buf_length = 256; /* get all info from F/W adapter */
else else
scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */ scb->sys_buf_length = 18; /* get exactly 18 bytes for other SCSI */
scb->tsb_adr = isa_virt_to_bus(tsb); scb->tsb_adr = isa_virt_to_bus(tsb);
/*issue scb to ldn=15, and busy wait for interrupt */ /*issue scb to ldn=15, and busy wait for interrupt */
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | MAX_LOG_DEV); issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | MAX_LOG_DEV);
/* FIXME: timeout */ /* FIXME: timeout */
while (!got_interrupt(host_index)) while (!got_interrupt(shpnt))
barrier(); barrier();
/*if got POS-stuff, get block length and return one device found */ /*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)) if ((stat_result(shpnt) == IM_SCB_CMD_COMPLETED) || (stat_result(shpnt) == IM_SCB_CMD_COMPLETED_WITH_RETRIES))
return 1; return 1;
} }
/* if all three retries failed, return "no device at this ldn" */ /* if all three retries failed, return "no device at this ldn" */
...@@ -851,14 +859,16 @@ static int get_pos_info(int host_index) ...@@ -851,14 +859,16 @@ static int get_pos_info(int host_index)
/* SCSI-immediate-command for assign. This functions maps/unmaps specific /* SCSI-immediate-command for assign. This functions maps/unmaps specific
ldn-numbers on SCSI (PUN,LUN). It is needed for presetting of the ldn-numbers on SCSI (PUN,LUN). It is needed for presetting of the
subsystem and for dynamical remapping od ldns. */ subsystem and for dynamical remapping od ldns. */
static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, unsigned int ldn, unsigned int operation) static int immediate_assign(struct Scsi_Host *shpnt, unsigned int pun,
unsigned int lun, unsigned int ldn,
unsigned int operation)
{ {
int retr; int retr;
unsigned long imm_cmd; unsigned long imm_cmd;
for (retr = 0; retr < 3; retr++) { for (retr = 0; retr < 3; retr++) {
/* select mutation level of the SCSI-adapter */ /* select mutation level of the SCSI-adapter */
switch (special(host_index)) { switch (special(shpnt)) {
case IBM_SCSI2_FW: case IBM_SCSI2_FW:
imm_cmd = (unsigned long) (IM_ASSIGN_IMM_CMD); imm_cmd = (unsigned long) (IM_ASSIGN_IMM_CMD);
imm_cmd |= (unsigned long) ((lun & 7) << 24); imm_cmd |= (unsigned long) ((lun & 7) << 24);
...@@ -867,7 +877,7 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, ...@@ -867,7 +877,7 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun,
imm_cmd |= (unsigned long) ((ldn & 15) << 16); imm_cmd |= (unsigned long) ((ldn & 15) << 16);
break; break;
default: default:
imm_cmd = inl(IM_CMD_REG(host_index)); imm_cmd = inl(IM_CMD_REG(shpnt));
imm_cmd &= (unsigned long) (0xF8000000); /* keep reserved bits */ imm_cmd &= (unsigned long) (0xF8000000); /* keep reserved bits */
imm_cmd |= (unsigned long) (IM_ASSIGN_IMM_CMD); imm_cmd |= (unsigned long) (IM_ASSIGN_IMM_CMD);
imm_cmd |= (unsigned long) ((lun & 7) << 24); imm_cmd |= (unsigned long) ((lun & 7) << 24);
...@@ -876,15 +886,15 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, ...@@ -876,15 +886,15 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun,
imm_cmd |= (unsigned long) ((ldn & 15) << 16); imm_cmd |= (unsigned long) ((ldn & 15) << 16);
break; break;
} }
last_scsi_command(host_index)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD; last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_ASSIGN_IMM_CMD;
last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD; last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD;
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
issue_cmd(host_index, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV);
while (!got_interrupt(host_index)) while (!got_interrupt(shpnt))
barrier(); barrier();
/*if command successful, break */ /*if command successful, break */
if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
return 1; return 1;
} }
if (retr >= 3) if (retr >= 3)
...@@ -893,7 +903,7 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, ...@@ -893,7 +903,7 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun,
return 1; return 1;
} }
static int immediate_feature(int host_index, unsigned int speed, unsigned int timeout) static int immediate_feature(struct Scsi_Host *shpnt, unsigned int speed, unsigned int timeout)
{ {
int retr; int retr;
unsigned long imm_cmd; unsigned long imm_cmd;
...@@ -903,16 +913,16 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti ...@@ -903,16 +913,16 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti
imm_cmd = IM_FEATURE_CTR_IMM_CMD; imm_cmd = IM_FEATURE_CTR_IMM_CMD;
imm_cmd |= (unsigned long) ((speed & 0x7) << 29); imm_cmd |= (unsigned long) ((speed & 0x7) << 29);
imm_cmd |= (unsigned long) ((timeout & 0x1fff) << 16); imm_cmd |= (unsigned long) ((timeout & 0x1fff) << 16);
last_scsi_command(host_index)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD; last_scsi_command(shpnt)[MAX_LOG_DEV] = IM_FEATURE_CTR_IMM_CMD;
last_scsi_type(host_index)[MAX_LOG_DEV] = IM_IMM_CMD; last_scsi_type(shpnt)[MAX_LOG_DEV] = IM_IMM_CMD;
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
/* we need to run into command errors in order to probe for the /* we need to run into command errors in order to probe for the
* right speed! */ * right speed! */
global_command_error_excuse = 1; global_command_error_excuse = 1;
issue_cmd(host_index, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV); issue_cmd(shpnt, (unsigned long) (imm_cmd), IM_IMM_CMD | MAX_LOG_DEV);
/* FIXME: timeout */ /* FIXME: timeout */
while (!got_interrupt(host_index)) while (!got_interrupt(shpnt))
barrier(); barrier();
if (global_command_error_excuse == CMD_FAIL) { if (global_command_error_excuse == CMD_FAIL) {
global_command_error_excuse = 0; global_command_error_excuse = 0;
...@@ -920,7 +930,7 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti ...@@ -920,7 +930,7 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti
} else } else
global_command_error_excuse = 0; global_command_error_excuse = 0;
/*if command successful, break */ /*if command successful, break */
if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
return 1; return 1;
} }
if (retr >= 3) if (retr >= 3)
...@@ -930,35 +940,35 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti ...@@ -930,35 +940,35 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti
} }
#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
static int immediate_reset(int host_index, unsigned int ldn) static int immediate_reset(struct Scsi_Host *shpnt, unsigned int ldn)
{ {
int retries; int retries;
int ticks; int ticks;
unsigned long imm_command; unsigned long imm_command;
for (retries = 0; retries < 3; retries++) { for (retries = 0; retries < 3; retries++) {
imm_command = inl(IM_CMD_REG(host_index)); imm_command = inl(IM_CMD_REG(shpnt));
imm_command &= (unsigned long) (0xFFFF0000); /* keep reserved bits */ imm_command &= (unsigned long) (0xFFFF0000); /* keep reserved bits */
imm_command |= (unsigned long) (IM_RESET_IMM_CMD); imm_command |= (unsigned long) (IM_RESET_IMM_CMD);
last_scsi_command(host_index)[ldn] = IM_RESET_IMM_CMD; last_scsi_command(shpnt)[ldn] = IM_RESET_IMM_CMD;
last_scsi_type(host_index)[ldn] = IM_IMM_CMD; last_scsi_type(shpnt)[ldn] = IM_IMM_CMD;
got_interrupt(host_index) = 0; got_interrupt(shpnt) = 0;
reset_status(host_index) = IM_RESET_IN_PROGRESS; reset_status(shpnt) = IM_RESET_IN_PROGRESS;
issue_cmd(host_index, (unsigned long) (imm_command), IM_IMM_CMD | ldn); issue_cmd(shpnt, (unsigned long) (imm_command), IM_IMM_CMD | ldn);
ticks = IM_RESET_DELAY * HZ; ticks = IM_RESET_DELAY * HZ;
while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks) { while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks) {
udelay((1 + 999 / HZ) * 1000); udelay((1 + 999 / HZ) * 1000);
barrier(); barrier();
} }
/* if reset did not complete, just complain */ /* if reset did not complete, just complain */
if (!ticks) { if (!ticks) {
printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY); printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY);
reset_status(host_index) = IM_RESET_FINISHED_OK; reset_status(shpnt) = IM_RESET_FINISHED_OK;
/* did not work, finish */ /* did not work, finish */
return 1; return 1;
} }
/*if command successful, break */ /*if command successful, break */
if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) if (stat_result(shpnt) == IM_IMMEDIATE_CMD_COMPLETED)
return 1; return 1;
} }
if (retries >= 3) if (retries >= 3)
...@@ -1060,35 +1070,35 @@ static int probe_display(int what) ...@@ -1060,35 +1070,35 @@ static int probe_display(int what)
return 0; return 0;
} }
static int probe_bus_mode(int host_index) static int probe_bus_mode(struct Scsi_Host *shpnt)
{ {
struct im_pos_info *info; struct im_pos_info *info;
int num_bus = 0; int num_bus = 0;
int ldn; int ldn;
info = (struct im_pos_info *) (&(ld(host_index)[MAX_LOG_DEV].buf)); info = (struct im_pos_info *) (&(ld(shpnt)[MAX_LOG_DEV].buf));
if (get_pos_info(host_index)) { if (get_pos_info(shpnt)) {
if (info->connector_size & 0xf000) if (info->connector_size & 0xf000)
subsystem_connector_size(host_index) = 16; subsystem_connector_size(shpnt) = 16;
else else
subsystem_connector_size(host_index) = 32; subsystem_connector_size(shpnt) = 32;
num_bus |= (info->pos_4b & 8) >> 3; num_bus |= (info->pos_4b & 8) >> 3;
for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
if ((special(host_index) == IBM_SCSI_WCACHE) || (special(host_index) == IBM_7568_WCACHE)) { if ((special(shpnt) == IBM_SCSI_WCACHE) || (special(shpnt) == IBM_7568_WCACHE)) {
if (!((info->cache_stat >> ldn) & 1)) if (!((info->cache_stat >> ldn) & 1))
ld(host_index)[ldn].cache_flag = 0; ld(shpnt)[ldn].cache_flag = 0;
} }
if (!((info->retry_stat >> ldn) & 1)) if (!((info->retry_stat >> ldn) & 1))
ld(host_index)[ldn].retry_flag = 0; ld(shpnt)[ldn].retry_flag = 0;
} }
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: SCSI-Cache bits: "); printk("IBM MCA SCSI: SCSI-Cache bits: ");
for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
printk("%d", ld(host_index)[ldn].cache_flag); printk("%d", ld(shpnt)[ldn].cache_flag);
} }
printk("\nIBM MCA SCSI: SCSI-Retry bits: "); printk("\nIBM MCA SCSI: SCSI-Retry bits: ");
for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
printk("%d", ld(host_index)[ldn].retry_flag); printk("%d", ld(shpnt)[ldn].retry_flag);
} }
printk("\n"); printk("\n");
#endif #endif
...@@ -1097,7 +1107,7 @@ static int probe_bus_mode(int host_index) ...@@ -1097,7 +1107,7 @@ static int probe_bus_mode(int host_index)
} }
/* probing scsi devices */ /* probing scsi devices */
static void check_devices(int host_index, int adaptertype) static void check_devices(struct Scsi_Host *shpnt, int adaptertype)
{ {
int id, lun, ldn, ticks; int id, lun, ldn, ticks;
int count_devices; /* local counter for connected device */ int count_devices; /* local counter for connected device */
...@@ -1108,24 +1118,24 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1108,24 +1118,24 @@ static void check_devices(int host_index, int adaptertype)
/* assign default values to certain variables */ /* assign default values to certain variables */
ticks = 0; ticks = 0;
count_devices = 0; count_devices = 0;
IBM_DS(host_index).dyn_flag = 0; /* normally no need for dynamical ldn management */ IBM_DS(shpnt).dyn_flag = 0; /* normally no need for dynamical ldn management */
IBM_DS(host_index).total_errors = 0; /* set errorcounter to 0 */ IBM_DS(shpnt).total_errors = 0; /* set errorcounter to 0 */
next_ldn(host_index) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired' */ next_ldn(shpnt) = 7; /* next ldn to be assigned is 7, because 0-6 is 'hardwired' */
/* initialize the very important driver-informational arrays/structs */ /* initialize the very important driver-informational arrays/structs */
memset(ld(host_index), 0, sizeof(ld(host_index))); memset(ld(shpnt), 0, sizeof(ld(shpnt)));
for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) { for (ldn = 0; ldn <= MAX_LOG_DEV; ldn++) {
last_scsi_command(host_index)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */ last_scsi_command(shpnt)[ldn] = NO_SCSI; /* emptify last SCSI-command storage */
last_scsi_type(host_index)[ldn] = 0; last_scsi_type(shpnt)[ldn] = 0;
ld(host_index)[ldn].cache_flag = 1; ld(shpnt)[ldn].cache_flag = 1;
ld(host_index)[ldn].retry_flag = 1; ld(shpnt)[ldn].retry_flag = 1;
} }
memset(get_ldn(host_index), TYPE_NO_DEVICE, sizeof(get_ldn(host_index))); /* this is essential ! */ memset(get_ldn(shpnt), TYPE_NO_DEVICE, sizeof(get_ldn(shpnt))); /* this is essential ! */
memset(get_scsi(host_index), TYPE_NO_DEVICE, sizeof(get_scsi(host_index))); /* this is essential ! */ memset(get_scsi(shpnt), TYPE_NO_DEVICE, sizeof(get_scsi(shpnt))); /* this is essential ! */
for (lun = 0; lun < 8; lun++) { for (lun = 0; lun < 8; lun++) {
/* mark the adapter at its pun on all luns */ /* mark the adapter at its pun on all luns */
get_scsi(host_index)[subsystem_pun(host_index)][lun] = TYPE_IBM_SCSI_ADAPTER; get_scsi(shpnt)[subsystem_pun(shpnt)][lun] = TYPE_IBM_SCSI_ADAPTER;
get_ldn(host_index)[subsystem_pun(host_index)][lun] = MAX_LOG_DEV; /* make sure, the subsystem get_ldn(shpnt)[subsystem_pun(shpnt)][lun] = MAX_LOG_DEV; /* make sure, the subsystem
ldn is active for all ldn is active for all
luns. */ luns. */
} }
...@@ -1134,9 +1144,9 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1134,9 +1144,9 @@ static void check_devices(int host_index, int adaptertype)
/* monitor connected on model XX95. */ /* monitor connected on model XX95. */
/* STEP 1: */ /* STEP 1: */
adapter_speed(host_index) = global_adapter_speed; adapter_speed(shpnt) = global_adapter_speed;
speedrun = adapter_speed(host_index); speedrun = adapter_speed(shpnt);
while (immediate_feature(host_index, speedrun, adapter_timeout) == 2) { while (immediate_feature(shpnt, speedrun, adapter_timeout) == 2) {
probe_display(1); probe_display(1);
if (speedrun == 7) if (speedrun == 7)
panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n"); panic("IBM MCA SCSI: Cannot set Synchronous-Transfer-Rate!\n");
...@@ -1144,30 +1154,30 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1144,30 +1154,30 @@ static void check_devices(int host_index, int adaptertype)
if (speedrun > 7) if (speedrun > 7)
speedrun = 7; speedrun = 7;
} }
adapter_speed(host_index) = speedrun; adapter_speed(shpnt) = speedrun;
/* Get detailed information about the current adapter, necessary for /* Get detailed information about the current adapter, necessary for
* device operations: */ * device operations: */
num_bus = probe_bus_mode(host_index); num_bus = probe_bus_mode(shpnt);
/* num_bus contains only valid data for the F/W adapter! */ /* num_bus contains only valid data for the F/W adapter! */
if (adaptertype == IBM_SCSI2_FW) { /* F/W SCSI adapter: */ if (adaptertype == IBM_SCSI2_FW) { /* F/W SCSI adapter: */
/* F/W adapter PUN-space extension evaluation: */ /* F/W adapter PUN-space extension evaluation: */
if (num_bus) { if (num_bus) {
printk(KERN_INFO "IBM MCA SCSI: Separate bus mode (wide-addressing enabled)\n"); printk(KERN_INFO "IBM MCA SCSI: Separate bus mode (wide-addressing enabled)\n");
subsystem_maxid(host_index) = 16; subsystem_maxid(shpnt) = 16;
} else { } else {
printk(KERN_INFO "IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n"); printk(KERN_INFO "IBM MCA SCSI: Combined bus mode (wide-addressing disabled)\n");
subsystem_maxid(host_index) = 8; subsystem_maxid(shpnt) = 8;
} }
printk(KERN_INFO "IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n", ibmrate(speedrun, adaptertype)); printk(KERN_INFO "IBM MCA SCSI: Sync.-Rate (F/W: 20, Int.: 10, Ext.: %s) MBytes/s\n", ibmrate(speedrun, adaptertype));
} else /* all other IBM SCSI adapters: */ } else /* all other IBM SCSI adapters: */
printk(KERN_INFO "IBM MCA SCSI: Synchronous-SCSI-Transfer-Rate: %s MBytes/s\n", ibmrate(speedrun, adaptertype)); printk(KERN_INFO "IBM MCA SCSI: Synchronous-SCSI-Transfer-Rate: %s MBytes/s\n", ibmrate(speedrun, adaptertype));
/* assign correct PUN device space */ /* assign correct PUN device space */
max_pun = subsystem_maxid(host_index); max_pun = subsystem_maxid(shpnt);
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Current SCSI-host index: %d\n", host_index); printk("IBM MCA SCSI: Current SCSI-host index: %d\n", shpnt);
printk("IBM MCA SCSI: Removing default logical SCSI-device mapping."); printk("IBM MCA SCSI: Removing default logical SCSI-device mapping.");
#else #else
printk(KERN_INFO "IBM MCA SCSI: Dev. Order: %s, Mapping (takes <2min): ", (ibm_ansi_order) ? "ANSI" : "New"); printk(KERN_INFO "IBM MCA SCSI: Dev. Order: %s, Mapping (takes <2min): ", (ibm_ansi_order) ? "ANSI" : "New");
...@@ -1177,7 +1187,7 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1177,7 +1187,7 @@ static void check_devices(int host_index, int adaptertype)
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("."); printk(".");
#endif #endif
immediate_assign(host_index, 0, 0, ldn, REMOVE_LDN); /* remove ldn (wherever) */ immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN); /* remove ldn (wherever) */
} }
lun = 0; /* default lun is 0 */ lun = 0; /* default lun is 0 */
#ifndef IM_DEBUG_PROBE #ifndef IM_DEBUG_PROBE
...@@ -1196,18 +1206,18 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1196,18 +1206,18 @@ static void check_devices(int host_index, int adaptertype)
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("."); printk(".");
#endif #endif
if (id != subsystem_pun(host_index)) { if (id != subsystem_pun(shpnt)) {
/* if pun is not the adapter: */ /* if pun is not the adapter: */
/* set ldn=0 to pun,lun */ /* set ldn=0 to pun,lun */
immediate_assign(host_index, id, lun, PROBE_LDN, SET_LDN); immediate_assign(shpnt, id, lun, PROBE_LDN, SET_LDN);
if (device_inquiry(host_index, PROBE_LDN)) { /* probe device */ if (device_inquiry(shpnt, PROBE_LDN)) { /* probe device */
get_scsi(host_index)[id][lun] = (unsigned char) (ld(host_index)[PROBE_LDN].buf[0]); get_scsi(shpnt)[id][lun] = (unsigned char) (ld(shpnt)[PROBE_LDN].buf[0]);
/* entry, even for NO_LUN */ /* entry, even for NO_LUN */
if (ld(host_index)[PROBE_LDN].buf[0] != TYPE_NO_LUN) if (ld(shpnt)[PROBE_LDN].buf[0] != TYPE_NO_LUN)
count_devices++; /* a existing device is found */ count_devices++; /* a existing device is found */
} }
/* remove ldn */ /* remove ldn */
immediate_assign(host_index, id, lun, PROBE_LDN, REMOVE_LDN); immediate_assign(shpnt, id, lun, PROBE_LDN, REMOVE_LDN);
} }
} }
#ifndef IM_DEBUG_PROBE #ifndef IM_DEBUG_PROBE
...@@ -1227,16 +1237,16 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1227,16 +1237,16 @@ static void check_devices(int host_index, int adaptertype)
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("."); printk(".");
#endif #endif
if (id != subsystem_pun(host_index)) { if (id != subsystem_pun(shpnt)) {
if (get_scsi(host_index)[id][lun] != TYPE_NO_LUN && get_scsi(host_index)[id][lun] != TYPE_NO_DEVICE) { if (get_scsi(shpnt)[id][lun] != TYPE_NO_LUN && get_scsi(shpnt)[id][lun] != TYPE_NO_DEVICE) {
/* Only map if accepted type. Always enter for /* Only map if accepted type. Always enter for
lun == 0 to get no gaps into ldn-mapping for ldn<7. */ lun == 0 to get no gaps into ldn-mapping for ldn<7. */
immediate_assign(host_index, id, lun, ldn, SET_LDN); immediate_assign(shpnt, id, lun, ldn, SET_LDN);
get_ldn(host_index)[id][lun] = ldn; /* map ldn */ get_ldn(shpnt)[id][lun] = ldn; /* map ldn */
if (device_exists(host_index, ldn, &ld(host_index)[ldn].block_length, &ld(host_index)[ldn].device_type)) { if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) {
#ifdef CONFIG_IBMMCA_SCSI_DEV_RESET #ifdef CONFIG_IBMMCA_SCSI_DEV_RESET
printk("resetting device at ldn=%x ... ", ldn); printk("resetting device at ldn=%x ... ", ldn);
immediate_reset(host_index, ldn); immediate_reset(shpnt, ldn);
#endif #endif
ldn++; ldn++;
} else { } else {
...@@ -1244,15 +1254,15 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1244,15 +1254,15 @@ static void check_devices(int host_index, int adaptertype)
* handle it or because it has problems */ * handle it or because it has problems */
if (lun > 0) { if (lun > 0) {
/* remove mapping */ /* remove mapping */
get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE; get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE;
immediate_assign(host_index, 0, 0, ldn, REMOVE_LDN); immediate_assign(shpnt, 0, 0, ldn, REMOVE_LDN);
} else } else
ldn++; ldn++;
} }
} else if (lun == 0) { } else if (lun == 0) {
/* map lun == 0, even if no device exists */ /* map lun == 0, even if no device exists */
immediate_assign(host_index, id, lun, ldn, SET_LDN); immediate_assign(shpnt, id, lun, ldn, SET_LDN);
get_ldn(host_index)[id][lun] = ldn; /* map ldn */ get_ldn(shpnt)[id][lun] = ldn; /* map ldn */
ldn++; ldn++;
} }
} }
...@@ -1262,14 +1272,14 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1262,14 +1272,14 @@ static void check_devices(int host_index, int adaptertype)
/* map remaining ldns to non-existing devices */ /* map remaining ldns to non-existing devices */
for (lun = 1; lun < 8 && ldn < MAX_LOG_DEV; lun++) 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) { if (get_scsi(shpnt)[id][lun] == TYPE_NO_LUN || get_scsi(shpnt)[id][lun] == TYPE_NO_DEVICE) {
probe_display(1); probe_display(1);
/* Map remaining ldns only to NON-existing pun,lun /* Map remaining ldns only to NON-existing pun,lun
combinations to make sure an inquiry will fail. combinations to make sure an inquiry will fail.
For MULTI_LUN, it is needed to avoid adapter autonome For MULTI_LUN, it is needed to avoid adapter autonome
SCSI-remapping. */ SCSI-remapping. */
immediate_assign(host_index, id, lun, ldn, SET_LDN); immediate_assign(shpnt, id, lun, ldn, SET_LDN);
get_ldn(host_index)[id][lun] = ldn; get_ldn(shpnt)[id][lun] = ldn;
ldn++; ldn++;
} }
} }
...@@ -1292,51 +1302,51 @@ static void check_devices(int host_index, int adaptertype) ...@@ -1292,51 +1302,51 @@ static void check_devices(int host_index, int adaptertype)
for (id = 0; id < max_pun; id++) { for (id = 0; id < max_pun; id++) {
printk("%2d ", id); printk("%2d ", id);
for (lun = 0; lun < 8; lun++) for (lun = 0; lun < 8; lun++)
printk("%2s ", ti_p(get_scsi(host_index)[id][lun])); printk("%2s ", ti_p(get_scsi(shpnt)[id][lun]));
printk(" %2d ", id); printk(" %2d ", id);
for (lun = 0; lun < 8; lun++) for (lun = 0; lun < 8; lun++)
printk("%2s ", ti_l(get_ldn(host_index)[id][lun])); printk("%2s ", ti_l(get_ldn(shpnt)[id][lun]));
printk("\n"); printk("\n");
} }
#endif #endif
/* assign total number of found SCSI-devices to the statistics struct */ /* assign total number of found SCSI-devices to the statistics struct */
IBM_DS(host_index).total_scsi_devices = count_devices; IBM_DS(shpnt).total_scsi_devices = count_devices;
/* decide for output in /proc-filesystem, if the configuration of /* decide for output in /proc-filesystem, if the configuration of
SCSI-devices makes dynamical reassignment of devices necessary */ SCSI-devices makes dynamical reassignment of devices necessary */
if (count_devices >= MAX_LOG_DEV) if (count_devices >= MAX_LOG_DEV)
IBM_DS(host_index).dyn_flag = 1; /* dynamical assignment is necessary */ IBM_DS(shpnt).dyn_flag = 1; /* dynamical assignment is necessary */
else else
IBM_DS(host_index).dyn_flag = 0; /* dynamical assignment is not necessary */ IBM_DS(shpnt).dyn_flag = 0; /* dynamical assignment is not necessary */
/* If no SCSI-devices are assigned, return 1 in order to cause message. */ /* If no SCSI-devices are assigned, return 1 in order to cause message. */
if (ldn == 0) if (ldn == 0)
printk("IBM MCA SCSI: Warning: No SCSI-devices found/assigned!\n"); printk("IBM MCA SCSI: Warning: No SCSI-devices found/assigned!\n");
/* reset the counters for statistics on the current adapter */ /* reset the counters for statistics on the current adapter */
IBM_DS(host_index).scbs = 0; IBM_DS(shpnt).scbs = 0;
IBM_DS(host_index).long_scbs = 0; IBM_DS(shpnt).long_scbs = 0;
IBM_DS(host_index).total_accesses = 0; IBM_DS(shpnt).total_accesses = 0;
IBM_DS(host_index).total_interrupts = 0; IBM_DS(shpnt).total_interrupts = 0;
IBM_DS(host_index).dynamical_assignments = 0; IBM_DS(shpnt).dynamical_assignments = 0;
memset(IBM_DS(host_index).ldn_access, 0x0, sizeof(IBM_DS(host_index).ldn_access)); memset(IBM_DS(shpnt).ldn_access, 0x0, sizeof(IBM_DS(shpnt).ldn_access));
memset(IBM_DS(host_index).ldn_read_access, 0x0, sizeof(IBM_DS(host_index).ldn_read_access)); memset(IBM_DS(shpnt).ldn_read_access, 0x0, sizeof(IBM_DS(shpnt).ldn_read_access));
memset(IBM_DS(host_index).ldn_write_access, 0x0, sizeof(IBM_DS(host_index).ldn_write_access)); memset(IBM_DS(shpnt).ldn_write_access, 0x0, sizeof(IBM_DS(shpnt).ldn_write_access));
memset(IBM_DS(host_index).ldn_inquiry_access, 0x0, sizeof(IBM_DS(host_index).ldn_inquiry_access)); memset(IBM_DS(shpnt).ldn_inquiry_access, 0x0, sizeof(IBM_DS(shpnt).ldn_inquiry_access));
memset(IBM_DS(host_index).ldn_modeselect_access, 0x0, sizeof(IBM_DS(host_index).ldn_modeselect_access)); memset(IBM_DS(shpnt).ldn_modeselect_access, 0x0, sizeof(IBM_DS(shpnt).ldn_modeselect_access));
memset(IBM_DS(host_index).ldn_assignments, 0x0, sizeof(IBM_DS(host_index).ldn_assignments)); memset(IBM_DS(shpnt).ldn_assignments, 0x0, sizeof(IBM_DS(shpnt).ldn_assignments));
probe_display(0); probe_display(0);
return; return;
} }
static int device_exists(int host_index, int ldn, int *block_length, int *device_type) static int device_exists(struct Scsi_Host *shpnt, int ldn, int *block_length, int *device_type)
{ {
unsigned char *buf; unsigned char *buf;
/* if no valid device found, return immediately with 0 */ /* if no valid device found, return immediately with 0 */
if (!(device_inquiry(host_index, ldn))) if (!(device_inquiry(shpnt, ldn)))
return 0; return 0;
buf = (unsigned char *) (&(ld(host_index)[ldn].buf)); buf = (unsigned char *) (&(ld(shpnt)[ldn].buf));
if (*buf == TYPE_ROM) { if (*buf == TYPE_ROM) {
*device_type = TYPE_ROM; *device_type = TYPE_ROM;
*block_length = 2048; /* (standard blocksize for yellow-/red-book) */ *block_length = 2048; /* (standard blocksize for yellow-/red-book) */
...@@ -1349,7 +1359,7 @@ static int device_exists(int host_index, int ldn, int *block_length, int *device ...@@ -1349,7 +1359,7 @@ static int device_exists(int host_index, int ldn, int *block_length, int *device
} }
if (*buf == TYPE_DISK) { if (*buf == TYPE_DISK) {
*device_type = TYPE_DISK; *device_type = TYPE_DISK;
if (read_capacity(host_index, ldn)) { if (read_capacity(shpnt, ldn)) {
*block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24); *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24);
return 1; return 1;
} else } else
...@@ -1357,7 +1367,7 @@ static int device_exists(int host_index, int ldn, int *block_length, int *device ...@@ -1357,7 +1367,7 @@ static int device_exists(int host_index, int ldn, int *block_length, int *device
} }
if (*buf == TYPE_MOD) { if (*buf == TYPE_MOD) {
*device_type = TYPE_MOD; *device_type = TYPE_MOD;
if (read_capacity(host_index, ldn)) { if (read_capacity(shpnt, ldn)) {
*block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24); *block_length = *(buf + 7) + (*(buf + 6) << 8) + (*(buf + 5) << 16) + (*(buf + 4) << 24);
return 1; return 1;
} else } else
...@@ -1430,6 +1440,9 @@ static void internal_ibmmca_scsi_setup(char *str, int *ints) ...@@ -1430,6 +1440,9 @@ static void internal_ibmmca_scsi_setup(char *str, int *ints)
return; return;
} }
#if 0
FIXME NEED TO MOVE TO SYSFS
static int ibmmca_getinfo(char *buf, int slot, void *dev_id) static int ibmmca_getinfo(char *buf, int slot, void *dev_id)
{ {
struct Scsi_Host *shpnt; struct Scsi_Host *shpnt;
...@@ -1480,58 +1493,34 @@ static int ibmmca_getinfo(char *buf, int slot, void *dev_id) ...@@ -1480,58 +1493,34 @@ static int ibmmca_getinfo(char *buf, int slot, void *dev_id)
return len; return len;
} }
#endif
int ibmmca_detect(struct scsi_host_template * scsi_template) static struct scsi_host_template ibmmca_driver_template = {
.proc_name = "ibmmca",
.proc_info = ibmmca_proc_info,
.name = "IBM SCSI-Subsystem",
.queuecommand = ibmmca_queuecommand,
.eh_abort_handler = ibmmca_abort,
.eh_host_reset_handler = ibmmca_host_reset,
.bios_param = ibmmca_biosparam,
.can_queue = 16,
.this_id = 7,
.sg_tablesize = 16,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
};
static int ibmmca_probe(struct device *dev)
{ {
struct Scsi_Host *shpnt; struct Scsi_Host *shpnt;
int port, id, i, j, k, slot; int port, id, i, j, k, irq, enabled, ret = -EINVAL;
int devices_on_irq_11 = 0; struct mca_device *mca_dev = to_mca_device(dev);
int devices_on_irq_14 = 0; const char *description = ibmmca_description[mca_dev->index];
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 * important to allow better user bugreports in case of already
* having problems with the MCA_bus probing. */ * having problems with the MCA_bus probing. */
printk(KERN_INFO "IBM MCA SCSI: Version %s\n", IBMMCA_SCSI_DRIVER_VERSION); printk(KERN_INFO "IBM MCA SCSI: Version %s\n", IBMMCA_SCSI_DRIVER_VERSION);
/* if this is not MCA machine, return "nothing found" */
if (!MCA_bus) {
printk(KERN_INFO "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
/* get interrupt request level */
if (request_irq(IM_IRQ, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts)) {
printk(KERN_ERR "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) {
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"))) {
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 /* The POS2-register of all PS/2 model SCSI-subsystems has the following
* interpretation of bits: * interpretation of bits:
* Bit 7 - 4 : Chip Revision ID (Release) * Bit 7 - 4 : Chip Revision ID (Release)
...@@ -1558,7 +1547,14 @@ int ibmmca_detect(struct scsi_host_template * scsi_template) ...@@ -1558,7 +1547,14 @@ int ibmmca_detect(struct scsi_host_template * scsi_template)
/* first look for the IBM SCSI integrated subsystem on the motherboard */ /* first look for the IBM SCSI integrated subsystem on the motherboard */
for (j = 0; j < 8; j++) /* read the pos-information */ for (j = 0; j < 8; j++) /* read the pos-information */
pos[j] = mca_read_stored_pos(MCA_INTEGSCSI, j); pos[j] = mca_device_read_pos(mca_dev, j);
id = (pos[3] & 0xe0) >> 5; /* this is correct and represents the PUN */
enabled = (pos[2] &0x01);
if (!enabled) {
printk(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
printk(KERN_WARNING " SCSI-operations may not work.\n");
}
/* pos2 = pos3 = 0xff if there is no integrated SCSI-subsystem present, but /* 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 * if we ignore the settings of all surrounding pos registers, it is not
* completely sufficient to only check pos2 and pos3. */ * completely sufficient to only check pos2 and pos3. */
...@@ -1566,232 +1562,137 @@ int ibmmca_detect(struct scsi_host_template * scsi_template) ...@@ -1566,232 +1562,137 @@ int ibmmca_detect(struct scsi_host_template * scsi_template)
* make sure, we see a real integrated onboard SCSI-interface and no * make sure, we see a real integrated onboard SCSI-interface and no
* internal system information, which gets mapped to some pos registers * internal system information, which gets mapped to some pos registers
* on models 95xx. */ * 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 (mca_dev->slot == MCA_INTEGSCSI &&
if ((pos[2] & 1) == 1) /* is the subsystem chip enabled ? */ ((!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))) {
irq = IM_IRQ;
port = IM_IO_PORT; port = IM_IO_PORT;
else { /* if disabled, no IRQs will be generated, as the chip won't } else {
* listen to the incoming commands and will do really nothing, irq = IM_IRQ;
* except for listening to the pos-register settings. If this port = IM_IO_PORT + ((pos[2] &0x0e) << 2);
* happens, I need to hugely think about it, as one has to if ((mca_dev->index == IBM_SCSI2_FW) && (pos[6] != 0)) {
* 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(KERN_INFO "IBM MCA SCSI: IBM Integrated SCSI Controller ffound, io=0x%x, scsi id=%d,\n", port, id);
printk(KERN_INFO " 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")))
{
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. */
for (i = 0; i < ARRAY_SIZE(subsys_list); 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(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
printk(KERN_WARNING " SCSI-operations may not work.\n");
}
if ((i == IBM_SCSI2_FW) && (pos[6] != 0)) {
printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n"); printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n");
printk(KERN_ERR " Impossible to determine adapter PUN!\n"); printk(KERN_ERR " Impossible to determine adapter PUN!\n");
printk(KERN_ERR " Guessing adapter PUN = 7.\n"); printk(KERN_ERR " Guessing adapter PUN = 7.\n");
id = 7; id = 7;
} else { } else {
id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */ id = (pos[3] & 0xe0) >> 5; /* get subsystem PUN */
if (i == IBM_SCSI2_FW) { if (mca_dev->index == IBM_SCSI2_FW) {
id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit id |= (pos[3] & 0x10) >> 1; /* get subsystem PUN high-bit
* for F/W adapters */ * for F/W adapters */
} }
} }
if ((i == IBM_SCSI2_FW) && (pos[4] & 0x01) && (pos[6] == 0)) { if ((mca_dev->index == IBM_SCSI2_FW) &&
(pos[4] & 0x01) && (pos[6] == 0)) {
/* IRQ11 is used by SCSI-2 F/W Adapter/A */ /* IRQ11 is used by SCSI-2 F/W Adapter/A */
printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n"); printk(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
/* get interrupt request level */ irq = IM_IRQ_FW;
if (request_irq(IM_IRQ_FW, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts)) {
printk(KERN_ERR "IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ_FW);
} else
IRQ11_registered++;
} }
printk(KERN_INFO "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(KERN_DEBUG" ROM Addr.=off,");
else
printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000);
printk(KERN_DEBUG " 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 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. */ /* give detailed information on the subsystem. This helps me
for (i = 0; i < ARRAY_SIZE(subsys_list); i++) { * additionally during debugging and analyzing bug-reports. */
/* scan each slot for a fitting adapter id */ printk(KERN_INFO "IBM MCA SCSI: %s found, io=0x%x, scsi id=%d,\n",
slot = mca_find_adapter(subsys_list[i].mca_id, MCA_INTEGSCSI); description, port, id);
if (slot != MCA_NOTFOUND) { /* scan through all slots */ if (mca_dev->slot == MCA_INTEGSCSI)
for (j = 0; j < 8; j++) /* read the pos-information */ printk(KERN_INFO " chip rev.=%d, 8K NVRAM=%s, subsystem=%s\n", ((pos[2] & 0xf0) >> 4), (pos[2] & 2) ? "locked" : "accessible", (pos[2] & 1) ? "enabled." : "disabled.");
pos[j] = mca_read_stored_pos(slot, j); else {
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(KERN_WARNING "IBM MCA SCSI: WARNING - Your SCSI-subsystem is disabled!\n");
printk(KERN_WARNING " SCSI-operations may not work.\n");
}
if ((i == IBM_SCSI2_FW) && (pos[6] != 0)) {
printk(KERN_ERR "IBM MCA SCSI: ERROR - Wrong POS(6)-register setting!\n");
printk(KERN_ERR " Impossible to determine adapter PUN!\n");
printk(KERN_ERR " 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(KERN_DEBUG "IBM MCA SCSI: SCSI-2 F/W adapter needs IRQ 11.\n");
/* get interrupt request level */
if (request_irq(IM_IRQ_FW, interrupt_handler, IRQF_SHARED, "ibmmcascsi", hosts))
printk(KERN_ERR "IBM MCA SCSI: Unable to get shared IRQ %d.\n", IM_IRQ_FW);
else
IRQ11_registered++;
}
printk(KERN_INFO "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) if ((pos[2] & 0xf0) == 0xf0)
printk(KERN_DEBUG " ROM Addr.=off,"); printk(KERN_DEBUG " ROM Addr.=off,");
else else
printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000); printk(KERN_DEBUG " ROM Addr.=0x%x,", ((pos[2] & 0xf0) << 13) + 0xc0000);
printk(KERN_DEBUG " 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)
free_irq(IM_IRQ, hosts); /* no devices on IRQ 14 */
if (!devices_on_irq_11 && !devices_on_irq_14)
printk(KERN_WARNING "IBM MCA SCSI: No IBM SCSI-subsystem adapter attached.\n");
return found; /* return the number of found SCSI hosts. Should be 1 or 0. */
}
static struct Scsi_Host *ibmmca_register(struct scsi_host_template * scsi_template, int port, int id, int adaptertype, char *hostname) printk(KERN_DEBUG " port-offset=0x%x, subsystem=%s\n", ((pos[2] & 0x0e) << 2), (pos[2] & 1) ? "enabled." : "disabled.");
{ }
struct Scsi_Host *shpnt;
int i, j;
unsigned int ctrl;
/* check I/O region */ /* check I/O region */
if (!request_region(port, IM_N_IO_PORT, hostname)) { if (!request_region(port, IM_N_IO_PORT, description)) {
printk(KERN_ERR "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); printk(KERN_ERR "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; goto out_fail;
} }
/* register host */ /* register host */
shpnt = scsi_register(scsi_template, sizeof(struct ibmmca_hostdata)); shpnt = scsi_host_alloc(&ibmmca_driver_template,
sizeof(struct ibmmca_hostdata));
if (!shpnt) { if (!shpnt) {
printk(KERN_ERR "IBM MCA SCSI: Unable to register host.\n"); printk(KERN_ERR "IBM MCA SCSI: Unable to register host.\n");
release_region(port, IM_N_IO_PORT); goto out_release;
return NULL; }
dev_set_drvdata(dev, shpnt);
if(request_irq(irq, interrupt_handler, IRQF_SHARED, description, dev)) {
printk(KERN_ERR "IBM MCA SCSI: failed to request interrupt %d\n", irq);
goto out_free_host;
} }
/* request I/O region */ /* request I/O region */
hosts[found] = shpnt; /* add new found hostadapter to the list */ special(shpnt) = mca_dev->index; /* important assignment or else crash! */
special(found) = adaptertype; /* important assignment or else crash! */ subsystem_connector_size(shpnt) = 0; /* preset slot-size */
subsystem_connector_size(found) = 0; /* preset slot-size */ shpnt->irq = irq; /* assign necessary stuff for the adapter */
shpnt->irq = IM_IRQ; /* assign necessary stuff for the adapter */
shpnt->io_port = port; shpnt->io_port = port;
shpnt->n_io_port = IM_N_IO_PORT; shpnt->n_io_port = IM_N_IO_PORT;
shpnt->this_id = id; shpnt->this_id = id;
shpnt->max_id = 8; /* 8 PUNs are default */ shpnt->max_id = 8; /* 8 PUNs are default */
/* now, the SCSI-subsystem is connected to Linux */ /* now, the SCSI-subsystem is connected to Linux */
ctrl = (unsigned int) (inb(IM_CTR_REG(found))); /* get control-register status */
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
ctrl = (unsigned int) (inb(IM_CTR_REG(found))); /* get control-register status */
printk("IBM MCA SCSI: Control Register contents: %x, status: %x\n", ctrl, inb(IM_STAT_REG(found))); printk("IBM MCA SCSI: Control Register contents: %x, status: %x\n", ctrl, inb(IM_STAT_REG(found)));
printk("IBM MCA SCSI: This adapters' POS-registers: "); printk("IBM MCA SCSI: This adapters' POS-registers: ");
for (i = 0; i < 8; i++) for (i = 0; i < 8; i++)
printk("%x ", pos[i]); printk("%x ", pos[i]);
printk("\n"); printk("\n");
#endif #endif
reset_status(found) = IM_RESET_NOT_IN_PROGRESS; reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS;
for (i = 0; i < 16; i++) /* reset the tables */ for (i = 0; i < 16; i++) /* reset the tables */
for (j = 0; j < 8; j++) for (j = 0; j < 8; j++)
get_ldn(found)[i][j] = MAX_LOG_DEV; get_ldn(shpnt)[i][j] = MAX_LOG_DEV;
/* check which logical devices exist */ /* check which logical devices exist */
/* after this line, local interrupting is possible: */ /* after this line, local interrupting is possible: */
local_checking_phase_flag(found) = 1; local_checking_phase_flag(shpnt) = 1;
check_devices(found, adaptertype); /* call by value, using the global variable hosts */ check_devices(shpnt, mca_dev->index); /* call by value, using the global variable hosts */
local_checking_phase_flag(found) = 0; local_checking_phase_flag(shpnt) = 0;
found++; /* now increase index to be prepared for next found subsystem */
/* an ibm mca subsystem has been detected */ /* an ibm mca subsystem has been detected */
return shpnt;
for (k = 2; k < 7; k++)
((struct ibmmca_hostdata *) shpnt->hostdata)->_pos[k] = pos[k];
((struct ibmmca_hostdata *) shpnt->hostdata)->_special = INTEGRATED_SCSI;
mca_device_set_name(mca_dev, description);
/* FIXME: NEED TO REPLUMB TO SYSFS
mca_set_adapter_procfn(MCA_INTEGSCSI, (MCA_ProcFn) ibmmca_getinfo, shpnt);
*/
mca_device_set_claim(mca_dev, 1);
if (scsi_add_host(shpnt, dev)) {
dev_printk(KERN_ERR, dev, "IBM MCA SCSI: scsi_add_host failed\n");
goto out_free_host;
}
scsi_scan_host(shpnt);
return 0;
out_free_host:
scsi_host_put(shpnt);
out_release:
release_region(port, IM_N_IO_PORT);
out_fail:
return ret;
} }
static int ibmmca_release(struct Scsi_Host *shpnt) static int __devexit ibmmca_remove(struct device *dev)
{ {
struct Scsi_Host *shpnt = dev_get_drvdata(dev);
scsi_remove_host(shpnt);
release_region(shpnt->io_port, shpnt->n_io_port); release_region(shpnt->io_port, shpnt->n_io_port);
if (!(--found)) free_irq(shpnt->irq, dev);
free_irq(shpnt->irq, hosts);
return 0; return 0;
} }
...@@ -1805,33 +1706,24 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1805,33 +1706,24 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
int current_ldn; int current_ldn;
int id, lun; int id, lun;
int target; int target;
int host_index;
int max_pun; int max_pun;
int i; int i;
struct scatterlist *sl; struct scatterlist *sl;
shpnt = cmd->device->host; shpnt = cmd->device->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 */ max_pun = subsystem_maxid(shpnt);
cmd->result = DID_NO_CONNECT << 16;
if (done)
done(cmd);
return 0;
}
max_pun = subsystem_maxid(host_index);
if (ibm_ansi_order) { if (ibm_ansi_order) {
target = max_pun - 1 - cmd->device->id; target = max_pun - 1 - cmd->device->id;
if ((target <= subsystem_pun(host_index)) && (cmd->device->id <= subsystem_pun(host_index))) if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt)))
target--; target--;
else if ((target >= subsystem_pun(host_index)) && (cmd->device->id >= subsystem_pun(host_index))) else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt)))
target++; target++;
} else } else
target = cmd->device->id; target = cmd->device->id;
/* 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->device->lun] == TYPE_NO_LUN) || (get_scsi(host_index)[target][cmd->device->lun] == TYPE_NO_DEVICE)) { if ((get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_LUN) || (get_scsi(shpnt)[target][cmd->device->lun] == TYPE_NO_DEVICE)) {
cmd->result = DID_NO_CONNECT << 16; cmd->result = DID_NO_CONNECT << 16;
if (done) if (done)
done(cmd); done(cmd);
...@@ -1839,16 +1731,16 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1839,16 +1731,16 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
} }
/*if (target,lun) unassigned, do further checks... */ /*if (target,lun) unassigned, do further checks... */
ldn = get_ldn(host_index)[target][cmd->device->lun]; ldn = get_ldn(shpnt)[target][cmd->device->lun];
if (ldn >= MAX_LOG_DEV) { /* on invalid ldn do special stuff */ if (ldn >= MAX_LOG_DEV) { /* on invalid ldn do special stuff */
if (ldn > MAX_LOG_DEV) { /* dynamical remapping if ldn unassigned */ if (ldn > MAX_LOG_DEV) { /* dynamical remapping if ldn unassigned */
current_ldn = next_ldn(host_index); /* stop-value for one circle */ current_ldn = next_ldn(shpnt); /* stop-value for one circle */
while (ld(host_index)[next_ldn(host_index)].cmd) { /* search for a occupied, but not in */ while (ld(shpnt)[next_ldn(shpnt)].cmd) { /* search for a occupied, but not in */
/* command-processing ldn. */ /* command-processing ldn. */
next_ldn(host_index)++; next_ldn(shpnt)++;
if (next_ldn(host_index) >= MAX_LOG_DEV) if (next_ldn(shpnt) >= MAX_LOG_DEV)
next_ldn(host_index) = 7; next_ldn(shpnt) = 7;
if (current_ldn == next_ldn(host_index)) { /* One circle done ? */ if (current_ldn == next_ldn(shpnt)) { /* One circle done ? */
/* no non-processing ldn found */ /* no non-processing ldn found */
scmd_printk(KERN_WARNING, cmd, scmd_printk(KERN_WARNING, cmd,
"IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n" "IBM MCA SCSI: Cannot assign SCSI-device dynamically!\n"
...@@ -1864,56 +1756,56 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1864,56 +1756,56 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
/* unmap non-processing ldn */ /* unmap non-processing ldn */
for (id = 0; id < max_pun; id++) for (id = 0; id < max_pun; id++)
for (lun = 0; lun < 8; lun++) { for (lun = 0; lun < 8; lun++) {
if (get_ldn(host_index)[id][lun] == next_ldn(host_index)) { if (get_ldn(shpnt)[id][lun] == next_ldn(shpnt)) {
get_ldn(host_index)[id][lun] = TYPE_NO_DEVICE; get_ldn(shpnt)[id][lun] = TYPE_NO_DEVICE;
get_scsi(host_index)[id][lun] = TYPE_NO_DEVICE; get_scsi(shpnt)[id][lun] = TYPE_NO_DEVICE;
/* unmap entry */ /* unmap entry */
} }
} }
/* set reduced interrupt_handler-mode for checking */ /* set reduced interrupt_handler-mode for checking */
local_checking_phase_flag(host_index) = 1; local_checking_phase_flag(shpnt) = 1;
/* map found ldn to pun,lun */ /* map found ldn to pun,lun */
get_ldn(host_index)[target][cmd->device->lun] = next_ldn(host_index); get_ldn(shpnt)[target][cmd->device->lun] = next_ldn(shpnt);
/* change ldn to the right value, that is now next_ldn */ /* change ldn to the right value, that is now next_ldn */
ldn = next_ldn(host_index); ldn = next_ldn(shpnt);
/* unassign all ldns (pun,lun,ldn does not matter for remove) */ /* unassign all ldns (pun,lun,ldn does not matter for remove) */
immediate_assign(host_index, 0, 0, 0, REMOVE_LDN); immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN);
/* set only LDN for remapped device */ /* set only LDN for remapped device */
immediate_assign(host_index, target, cmd->device->lun, ldn, SET_LDN); immediate_assign(shpnt, target, cmd->device->lun, ldn, SET_LDN);
/* get device information for ld[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)) { if (device_exists(shpnt, ldn, &ld(shpnt)[ldn].block_length, &ld(shpnt)[ldn].device_type)) {
ld(host_index)[ldn].cmd = NULL; /* To prevent panic set 0, because ld(shpnt)[ldn].cmd = NULL; /* To prevent panic set 0, because
devices that were not assigned, devices that were not assigned,
should have nothing in progress. */ should have nothing in progress. */
get_scsi(host_index)[target][cmd->device->lun] = ld(host_index)[ldn].device_type; get_scsi(shpnt)[target][cmd->device->lun] = ld(shpnt)[ldn].device_type;
/* increase assignment counters for statistics in /proc */ /* increase assignment counters for statistics in /proc */
IBM_DS(host_index).dynamical_assignments++; IBM_DS(shpnt).dynamical_assignments++;
IBM_DS(host_index).ldn_assignments[ldn]++; IBM_DS(shpnt).ldn_assignments[ldn]++;
} else } else
/* panic here, because a device, found at boottime has /* panic here, because a device, found at boottime has
vanished */ vanished */
panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n", ldn, target, cmd->device->lun); panic("IBM MCA SCSI: ldn=0x%x, SCSI-device on (%d,%d) vanished!\n", ldn, target, cmd->device->lun);
/* unassign again all ldns (pun,lun,ldn does not matter for remove) */ /* unassign again all ldns (pun,lun,ldn does not matter for remove) */
immediate_assign(host_index, 0, 0, 0, REMOVE_LDN); immediate_assign(shpnt, 0, 0, 0, REMOVE_LDN);
/* remap all ldns, as written in the pun/lun table */ /* remap all ldns, as written in the pun/lun table */
lun = 0; lun = 0;
#ifdef CONFIG_SCSI_MULTI_LUN #ifdef CONFIG_SCSI_MULTI_LUN
for (lun = 0; lun < 8; lun++) for (lun = 0; lun < 8; lun++)
#endif #endif
for (id = 0; id < max_pun; id++) { for (id = 0; id < max_pun; id++) {
if (get_ldn(host_index)[id][lun] <= MAX_LOG_DEV) if (get_ldn(shpnt)[id][lun] <= MAX_LOG_DEV)
immediate_assign(host_index, id, lun, get_ldn(host_index)[id][lun], SET_LDN); immediate_assign(shpnt, id, lun, get_ldn(shpnt)[id][lun], SET_LDN);
} }
/* set back to normal interrupt_handling */ /* set back to normal interrupt_handling */
local_checking_phase_flag(host_index) = 0; local_checking_phase_flag(shpnt) = 0;
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
/* Information on syslog terminal */ /* Information on syslog terminal */
printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n", ldn, target, cmd->device->lun); printk("IBM MCA SCSI: ldn=0x%x dynamically reassigned to (%d,%d).\n", ldn, target, cmd->device->lun);
#endif #endif
/* increase next_ldn for next dynamical assignment */ /* increase next_ldn for next dynamical assignment */
next_ldn(host_index)++; next_ldn(shpnt)++;
if (next_ldn(host_index) >= MAX_LOG_DEV) if (next_ldn(shpnt) >= MAX_LOG_DEV)
next_ldn(host_index) = 7; next_ldn(shpnt) = 7;
} else { /* wall against Linux accesses to the subsystem adapter */ } else { /* wall against Linux accesses to the subsystem adapter */
cmd->result = DID_BAD_TARGET << 16; cmd->result = DID_BAD_TARGET << 16;
if (done) if (done)
...@@ -1923,18 +1815,18 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1923,18 +1815,18 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
} }
/*verify there is no command already in progress for this log dev */ /*verify there is no command already in progress for this log dev */
if (ld(host_index)[ldn].cmd) if (ld(shpnt)[ldn].cmd)
panic("IBM MCA SCSI: cmd already in progress for this ldn.\n"); panic("IBM MCA SCSI: cmd already in progress for this ldn.\n");
/*save done in cmd, and save cmd for the interrupt handler */ /*save done in cmd, and save cmd for the interrupt handler */
cmd->scsi_done = done; cmd->scsi_done = done;
ld(host_index)[ldn].cmd = cmd; ld(shpnt)[ldn].cmd = cmd;
/*fill scb information independent of the scsi command */ /*fill scb information independent of the scsi command */
scb = &(ld(host_index)[ldn].scb); scb = &(ld(shpnt)[ldn].scb);
ld(host_index)[ldn].tsb.dev_status = 0; ld(shpnt)[ldn].tsb.dev_status = 0;
scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE; scb->enable = IM_REPORT_TSB_ONLY_ON_ERROR | IM_RETRY_ENABLE;
scb->tsb_adr = isa_virt_to_bus(&(ld(host_index)[ldn].tsb)); scb->tsb_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].tsb));
scsi_cmd = cmd->cmnd[0]; scsi_cmd = cmd->cmnd[0];
if (cmd->use_sg) { if (cmd->use_sg) {
...@@ -1943,11 +1835,11 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1943,11 +1835,11 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
if (i > 16) if (i > 16)
panic("IBM MCA SCSI: scatter-gather list too long.\n"); panic("IBM MCA SCSI: scatter-gather list too long.\n");
while (--i >= 0) { while (--i >= 0) {
ld(host_index)[ldn].sge[i].address = (void *) (isa_page_to_bus(sl[i].page) + sl[i].offset); ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sl[i].page) + sl[i].offset);
ld(host_index)[ldn].sge[i].byte_length = sl[i].length; ld(shpnt)[ldn].sge[i].byte_length = sl[i].length;
} }
scb->enable |= IM_POINTER_TO_LIST; scb->enable |= IM_POINTER_TO_LIST;
scb->sys_buf_adr = isa_virt_to_bus(&(ld(host_index)[ldn].sge[0])); scb->sys_buf_adr = isa_virt_to_bus(&(ld(shpnt)[ldn].sge[0]));
scb->sys_buf_length = cmd->use_sg * sizeof(struct im_sge); scb->sys_buf_length = cmd->use_sg * sizeof(struct im_sge);
} else { } else {
scb->sys_buf_adr = isa_virt_to_bus(cmd->request_buffer); scb->sys_buf_adr = isa_virt_to_bus(cmd->request_buffer);
...@@ -1982,16 +1874,16 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -1982,16 +1874,16 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
/* for specific device-type debugging: */ /* for specific device-type debugging: */
#ifdef IM_DEBUG_CMD_SPEC_DEV #ifdef IM_DEBUG_CMD_SPEC_DEV
if (ld(host_index)[ldn].device_type == IM_DEBUG_CMD_DEVICE) if (ld(shpnt)[ldn].device_type == IM_DEBUG_CMD_DEVICE)
printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n", ld(host_index)[ldn].device_type, scsi_cmd, ldn); printk("(SCSI-device-type=0x%x) issue scsi cmd=%02x to ldn=%d\n", ld(shpnt)[ldn].device_type, scsi_cmd, ldn);
#endif #endif
/* for possible panics store current command */ /* for possible panics store current command */
last_scsi_command(host_index)[ldn] = scsi_cmd; last_scsi_command(shpnt)[ldn] = scsi_cmd;
last_scsi_type(host_index)[ldn] = IM_SCB; last_scsi_type(shpnt)[ldn] = IM_SCB;
/* update statistical info */ /* update statistical info */
IBM_DS(host_index).total_accesses++; IBM_DS(shpnt).total_accesses++;
IBM_DS(host_index).ldn_access[ldn]++; IBM_DS(shpnt).ldn_access[ldn]++;
switch (scsi_cmd) { switch (scsi_cmd) {
case READ_6: case READ_6:
...@@ -2003,17 +1895,17 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2003,17 +1895,17 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
/* Distinguish between disk and other devices. Only disks (that are the /* Distinguish between disk and other devices. Only disks (that are the
most frequently accessed devices) should be supported by the most frequently accessed devices) should be supported by the
IBM-SCSI-Subsystem commands. */ IBM-SCSI-Subsystem commands. */
switch (ld(host_index)[ldn].device_type) { switch (ld(shpnt)[ldn].device_type) {
case TYPE_DISK: /* for harddisks enter here ... */ case TYPE_DISK: /* for harddisks enter here ... */
case TYPE_MOD: /* ... try it also for MO-drives (send flames as */ case TYPE_MOD: /* ... try it also for MO-drives (send flames as */
/* you like, if this won't work.) */ /* you like, if this won't work.) */
if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12) { if (scsi_cmd == READ_6 || scsi_cmd == READ_10 || scsi_cmd == READ_12) {
/* read command preparations */ /* read command preparations */
scb->enable |= IM_READ_CONTROL; scb->enable |= IM_READ_CONTROL;
IBM_DS(host_index).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */ IBM_DS(shpnt).ldn_read_access[ldn]++; /* increase READ-access on ldn stat. */
scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT; scb->command = IM_READ_DATA_CMD | IM_NO_DISCONNECT;
} else { /* write command preparations */ } else { /* write command preparations */
IBM_DS(host_index).ldn_write_access[ldn]++; /* increase write-count on ldn stat. */ IBM_DS(shpnt).ldn_write_access[ldn]++; /* increase write-count on ldn stat. */
scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT; scb->command = IM_WRITE_DATA_CMD | IM_NO_DISCONNECT;
} }
if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6) { if (scsi_cmd == READ_6 || scsi_cmd == WRITE_6) {
...@@ -2023,9 +1915,9 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2023,9 +1915,9 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
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->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); 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_logical_block(shpnt)[ldn] = scb->u1.log_blk_adr;
last_scsi_blockcount(host_index)[ldn] = scb->u2.blk.count; last_scsi_blockcount(shpnt)[ldn] = scb->u2.blk.count;
scb->u2.blk.length = ld(host_index)[ldn].block_length; scb->u2.blk.length = ld(shpnt)[ldn].block_length;
break; break;
/* for other devices, enter here. Other types are not known by /* for other devices, enter here. Other types are not known by
Linux! TYPE_NO_LUN is forbidden as valid device. */ Linux! TYPE_NO_LUN is forbidden as valid device. */
...@@ -2046,14 +1938,14 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2046,14 +1938,14 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
scb->enable |= IM_BYPASS_BUFFER; scb->enable |= IM_BYPASS_BUFFER;
scb->u1.scsi_cmd_length = cmd->cmd_len; scb->u1.scsi_cmd_length = cmd->cmd_len;
memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
last_scsi_type(host_index)[ldn] = IM_LONG_SCB; last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
/* Read/write on this non-disk devices is also displayworthy, /* Read/write on this non-disk devices is also displayworthy,
so flash-up the LED/display. */ so flash-up the LED/display. */
break; break;
} }
break; break;
case INQUIRY: case INQUIRY:
IBM_DS(host_index).ldn_inquiry_access[ldn]++; IBM_DS(shpnt).ldn_inquiry_access[ldn]++;
scb->command = IM_DEVICE_INQUIRY_CMD; scb->command = IM_DEVICE_INQUIRY_CMD;
scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
scb->u1.log_blk_adr = 0; scb->u1.log_blk_adr = 0;
...@@ -2064,7 +1956,7 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2064,7 +1956,7 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
scb->u1.log_blk_adr = 0; scb->u1.log_blk_adr = 0;
scb->u1.scsi_cmd_length = 6; scb->u1.scsi_cmd_length = 6;
memcpy(scb->u2.scsi_command, cmd->cmnd, 6); memcpy(scb->u2.scsi_command, cmd->cmnd, 6);
last_scsi_type(host_index)[ldn] = IM_LONG_SCB; last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
break; break;
case READ_CAPACITY: case READ_CAPACITY:
/* the length of system memory buffer must be exactly 8 bytes */ /* the length of system memory buffer must be exactly 8 bytes */
...@@ -2081,12 +1973,12 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2081,12 +1973,12 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
/* Commands that need write-only-mode (system -> device): */ /* Commands that need write-only-mode (system -> device): */
case MODE_SELECT: case MODE_SELECT:
case MODE_SELECT_10: case MODE_SELECT_10:
IBM_DS(host_index).ldn_modeselect_access[ldn]++; IBM_DS(shpnt).ldn_modeselect_access[ldn]++;
scb->command = IM_OTHER_SCSI_CMD_CMD; scb->command = IM_OTHER_SCSI_CMD_CMD;
scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled */ scb->enable |= IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; /*Select needs WRITE-enabled */
scb->u1.scsi_cmd_length = cmd->cmd_len; scb->u1.scsi_cmd_length = cmd->cmd_len;
memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
last_scsi_type(host_index)[ldn] = IM_LONG_SCB; last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
break; break;
/* For other commands, read-only is useful. Most other commands are /* For other commands, read-only is useful. Most other commands are
running without an input-data-block. */ running without an input-data-block. */
...@@ -2095,19 +1987,19 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) ...@@ -2095,19 +1987,19 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER; scb->enable |= IM_READ_CONTROL | IM_SUPRESS_EXCEPTION_SHORT | IM_BYPASS_BUFFER;
scb->u1.scsi_cmd_length = cmd->cmd_len; scb->u1.scsi_cmd_length = cmd->cmd_len;
memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len); memcpy(scb->u2.scsi_command, cmd->cmnd, cmd->cmd_len);
last_scsi_type(host_index)[ldn] = IM_LONG_SCB; last_scsi_type(shpnt)[ldn] = IM_LONG_SCB;
break; break;
} }
/*issue scb command, and return */ /*issue scb command, and return */
if (++disk_rw_in_progress == 1) if (++disk_rw_in_progress == 1)
PS2_DISK_LED_ON(shpnt->host_no, target); PS2_DISK_LED_ON(shpnt->host_no, target);
if (last_scsi_type(host_index)[ldn] == IM_LONG_SCB) { if (last_scsi_type(shpnt)[ldn] == IM_LONG_SCB) {
issue_cmd(host_index, isa_virt_to_bus(scb), IM_LONG_SCB | ldn); issue_cmd(shpnt, isa_virt_to_bus(scb), IM_LONG_SCB | ldn);
IBM_DS(host_index).long_scbs++; IBM_DS(shpnt).long_scbs++;
} else { } else {
issue_cmd(host_index, isa_virt_to_bus(scb), IM_SCB | ldn); issue_cmd(shpnt, isa_virt_to_bus(scb), IM_SCB | ldn);
IBM_DS(host_index).scbs++; IBM_DS(shpnt).scbs++;
} }
return 0; return 0;
} }
...@@ -2122,7 +2014,6 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd) ...@@ -2122,7 +2014,6 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd)
unsigned int ldn; unsigned int ldn;
void (*saved_done) (Scsi_Cmnd *); void (*saved_done) (Scsi_Cmnd *);
int target; int target;
int host_index;
int max_pun; int max_pun;
unsigned long imm_command; unsigned long imm_command;
...@@ -2131,35 +2022,23 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd) ...@@ -2131,35 +2022,23 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd)
#endif #endif
shpnt = cmd->device->host; shpnt = cmd->device->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 */ max_pun = subsystem_maxid(shpnt);
cmd->result = DID_NO_CONNECT << 16;
if (cmd->scsi_done)
(cmd->scsi_done) (cmd);
shpnt = cmd->device->host;
#ifdef IM_DEBUG_PROBE
printk(KERN_DEBUG "IBM MCA SCSI: Abort adapter selection failed!\n");
#endif
return SUCCESS;
}
max_pun = subsystem_maxid(host_index);
if (ibm_ansi_order) { if (ibm_ansi_order) {
target = max_pun - 1 - cmd->device->id; target = max_pun - 1 - cmd->device->id;
if ((target <= subsystem_pun(host_index)) && (cmd->device->id <= subsystem_pun(host_index))) if ((target <= subsystem_pun(shpnt)) && (cmd->device->id <= subsystem_pun(shpnt)))
target--; target--;
else if ((target >= subsystem_pun(host_index)) && (cmd->device->id >= subsystem_pun(host_index))) else if ((target >= subsystem_pun(shpnt)) && (cmd->device->id >= subsystem_pun(shpnt)))
target++; target++;
} else } else
target = cmd->device->id; target = cmd->device->id;
/* get logical device number, and disable system interrupts */ /* get logical device number, and disable system interrupts */
printk(KERN_WARNING "IBM MCA SCSI: Sending abort to device pun=%d, lun=%d.\n", target, cmd->device->lun); printk(KERN_WARNING "IBM MCA SCSI: Sending abort to device pun=%d, lun=%d.\n", target, cmd->device->lun);
ldn = get_ldn(host_index)[target][cmd->device->lun]; ldn = get_ldn(shpnt)[target][cmd->device->lun];
/*if cmd for this ldn has already finished, no need to abort */ /*if cmd for this ldn has already finished, no need to abort */
if (!ld(host_index)[ldn].cmd) { if (!ld(shpnt)[ldn].cmd) {
return SUCCESS; return SUCCESS;
} }
...@@ -2170,20 +2049,20 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd) ...@@ -2170,20 +2049,20 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd)
saved_done = cmd->scsi_done; saved_done = cmd->scsi_done;
cmd->scsi_done = internal_done; cmd->scsi_done = internal_done;
cmd->SCp.Status = 0; cmd->SCp.Status = 0;
last_scsi_command(host_index)[ldn] = IM_ABORT_IMM_CMD; last_scsi_command(shpnt)[ldn] = IM_ABORT_IMM_CMD;
last_scsi_type(host_index)[ldn] = IM_IMM_CMD; last_scsi_type(shpnt)[ldn] = IM_IMM_CMD;
imm_command = inl(IM_CMD_REG(host_index)); imm_command = inl(IM_CMD_REG(shpnt));
imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */ imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */
imm_command |= (unsigned long) (IM_ABORT_IMM_CMD); imm_command |= (unsigned long) (IM_ABORT_IMM_CMD);
/* must wait for attention reg not busy */ /* must wait for attention reg not busy */
/* FIXME - timeout, politeness */ /* FIXME - timeout, politeness */
while (1) { while (1) {
if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
break; break;
} }
/* write registers and enable system interrupts */ /* write registers and enable system interrupts */
outl(imm_command, IM_CMD_REG(host_index)); outl(imm_command, IM_CMD_REG(shpnt));
outb(IM_IMM_CMD | ldn, IM_ATTN_REG(host_index)); outb(IM_IMM_CMD | ldn, IM_ATTN_REG(shpnt));
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Abort queued to adapter...\n"); printk("IBM MCA SCSI: Abort queued to adapter...\n");
#endif #endif
...@@ -2202,7 +2081,7 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd) ...@@ -2202,7 +2081,7 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd)
cmd->result |= DID_ABORT << 16; cmd->result |= DID_ABORT << 16;
if (cmd->scsi_done) if (cmd->scsi_done)
(cmd->scsi_done) (cmd); (cmd->scsi_done) (cmd);
ld(host_index)[ldn].cmd = NULL; ld(shpnt)[ldn].cmd = NULL;
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Abort finished with success.\n"); printk("IBM MCA SCSI: Abort finished with success.\n");
#endif #endif
...@@ -2211,7 +2090,7 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd) ...@@ -2211,7 +2090,7 @@ static int __ibmmca_abort(Scsi_Cmnd * cmd)
cmd->result |= DID_NO_CONNECT << 16; cmd->result |= DID_NO_CONNECT << 16;
if (cmd->scsi_done) if (cmd->scsi_done)
(cmd->scsi_done) (cmd); (cmd->scsi_done) (cmd);
ld(host_index)[ldn].cmd = NULL; ld(shpnt)[ldn].cmd = NULL;
#ifdef IM_DEBUG_PROBE #ifdef IM_DEBUG_PROBE
printk("IBM MCA SCSI: Abort failed.\n"); printk("IBM MCA SCSI: Abort failed.\n");
#endif #endif
...@@ -2236,71 +2115,65 @@ static int __ibmmca_host_reset(Scsi_Cmnd * cmd) ...@@ -2236,71 +2115,65 @@ static int __ibmmca_host_reset(Scsi_Cmnd * cmd)
struct Scsi_Host *shpnt; struct Scsi_Host *shpnt;
Scsi_Cmnd *cmd_aid; Scsi_Cmnd *cmd_aid;
int ticks, i; int ticks, i;
int host_index;
unsigned long imm_command; unsigned long imm_command;
BUG_ON(cmd == NULL); BUG_ON(cmd == NULL);
ticks = IM_RESET_DELAY * HZ; ticks = IM_RESET_DELAY * HZ;
shpnt = cmd->device->host; shpnt = cmd->device->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 */
return FAILED;
if (local_checking_phase_flag(host_index)) { if (local_checking_phase_flag(shpnt)) {
printk(KERN_WARNING "IBM MCA SCSI: unable to reset while checking devices.\n"); printk(KERN_WARNING "IBM MCA SCSI: unable to reset while checking devices.\n");
return FAILED; return FAILED;
} }
/* issue reset immediate command to subsystem, and wait for interrupt */ /* issue reset immediate command to subsystem, and wait for interrupt */
printk("IBM MCA SCSI: resetting all devices.\n"); printk("IBM MCA SCSI: resetting all devices.\n");
reset_status(host_index) = IM_RESET_IN_PROGRESS; reset_status(shpnt) = IM_RESET_IN_PROGRESS;
last_scsi_command(host_index)[0xf] = IM_RESET_IMM_CMD; last_scsi_command(shpnt)[0xf] = IM_RESET_IMM_CMD;
last_scsi_type(host_index)[0xf] = IM_IMM_CMD; last_scsi_type(shpnt)[0xf] = IM_IMM_CMD;
imm_command = inl(IM_CMD_REG(host_index)); imm_command = inl(IM_CMD_REG(shpnt));
imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */ imm_command &= (unsigned long) (0xffff0000); /* mask reserved stuff */
imm_command |= (unsigned long) (IM_RESET_IMM_CMD); imm_command |= (unsigned long) (IM_RESET_IMM_CMD);
/* must wait for attention reg not busy */ /* must wait for attention reg not busy */
while (1) { while (1) {
if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) if (!(inb(IM_STAT_REG(shpnt)) & IM_BUSY))
break; break;
spin_unlock_irq(shpnt->host_lock); spin_unlock_irq(shpnt->host_lock);
yield(); yield();
spin_lock_irq(shpnt->host_lock); spin_lock_irq(shpnt->host_lock);
} }
/*write registers and enable system interrupts */ /*write registers and enable system interrupts */
outl(imm_command, IM_CMD_REG(host_index)); outl(imm_command, IM_CMD_REG(shpnt));
outb(IM_IMM_CMD | 0xf, IM_ATTN_REG(host_index)); outb(IM_IMM_CMD | 0xf, IM_ATTN_REG(shpnt));
/* wait for interrupt finished or intr_stat register to be set, as the /* wait for interrupt finished or intr_stat register to be set, as the
* interrupt will not be executed, while we are in here! */ * interrupt will not be executed, while we are in here! */
/* FIXME: This is really really icky we so want a sleeping version of this ! */ /* FIXME: This is really really icky we so want a sleeping version of this ! */
while (reset_status(host_index) == IM_RESET_IN_PROGRESS && --ticks && ((inb(IM_INTR_REG(host_index)) & 0x8f) != 0x8f)) { while (reset_status(shpnt) == IM_RESET_IN_PROGRESS && --ticks && ((inb(IM_INTR_REG(shpnt)) & 0x8f) != 0x8f)) {
udelay((1 + 999 / HZ) * 1000); udelay((1 + 999 / HZ) * 1000);
barrier(); barrier();
} }
/* if reset did not complete, just return an error */ /* if reset did not complete, just return an error */
if (!ticks) { if (!ticks) {
printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY); printk(KERN_ERR "IBM MCA SCSI: reset did not complete within %d seconds.\n", IM_RESET_DELAY);
reset_status(host_index) = IM_RESET_FINISHED_FAIL; reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
return FAILED; return FAILED;
} }
if ((inb(IM_INTR_REG(host_index)) & 0x8f) == 0x8f) { if ((inb(IM_INTR_REG(shpnt)) & 0x8f) == 0x8f) {
/* analysis done by this routine and not by the intr-routine */ /* analysis done by this routine and not by the intr-routine */
if (inb(IM_INTR_REG(host_index)) == 0xaf) if (inb(IM_INTR_REG(shpnt)) == 0xaf)
reset_status(host_index) = IM_RESET_FINISHED_OK_NO_INT; reset_status(shpnt) = IM_RESET_FINISHED_OK_NO_INT;
else if (inb(IM_INTR_REG(host_index)) == 0xcf) else if (inb(IM_INTR_REG(shpnt)) == 0xcf)
reset_status(host_index) = IM_RESET_FINISHED_FAIL; reset_status(shpnt) = IM_RESET_FINISHED_FAIL;
else /* failed, 4get it */ else /* failed, 4get it */
reset_status(host_index) = IM_RESET_NOT_IN_PROGRESS_NO_INT; reset_status(shpnt) = IM_RESET_NOT_IN_PROGRESS_NO_INT;
outb(IM_EOI | 0xf, IM_ATTN_REG(host_index)); outb(IM_EOI | 0xf, IM_ATTN_REG(shpnt));
} }
/* if reset failed, just return an error */ /* if reset failed, just return an error */
if (reset_status(host_index) == IM_RESET_FINISHED_FAIL) { if (reset_status(shpnt) == IM_RESET_FINISHED_FAIL) {
printk(KERN_ERR "IBM MCA SCSI: reset failed.\n"); printk(KERN_ERR "IBM MCA SCSI: reset failed.\n");
return FAILED; return FAILED;
} }
...@@ -2308,9 +2181,9 @@ static int __ibmmca_host_reset(Scsi_Cmnd * cmd) ...@@ -2308,9 +2181,9 @@ static int __ibmmca_host_reset(Scsi_Cmnd * cmd)
/* so reset finished ok - call outstanding done's, and return success */ /* so reset finished ok - call outstanding done's, and return success */
printk(KERN_INFO "IBM MCA SCSI: Reset successfully completed.\n"); printk(KERN_INFO "IBM MCA SCSI: Reset successfully completed.\n");
for (i = 0; i < MAX_LOG_DEV; i++) { for (i = 0; i < MAX_LOG_DEV; i++) {
cmd_aid = ld(host_index)[i].cmd; cmd_aid = ld(shpnt)[i].cmd;
if (cmd_aid && cmd_aid->scsi_done) { if (cmd_aid && cmd_aid->scsi_done) {
ld(host_index)[i].cmd = NULL; ld(shpnt)[i].cmd = NULL;
cmd_aid->result = DID_RESET << 16; cmd_aid->result = DID_RESET << 16;
} }
} }
...@@ -2351,46 +2224,46 @@ static int ibmmca_biosparam(struct scsi_device *sdev, struct block_device *bdev, ...@@ -2351,46 +2224,46 @@ static int ibmmca_biosparam(struct scsi_device *sdev, struct block_device *bdev,
} }
/* calculate percentage of total accesses on a ldn */ /* calculate percentage of total accesses on a ldn */
static int ldn_access_load(int host_index, int ldn) static int ldn_access_load(struct Scsi_Host *shpnt, int ldn)
{ {
if (IBM_DS(host_index).total_accesses == 0) if (IBM_DS(shpnt).total_accesses == 0)
return (0); return (0);
if (IBM_DS(host_index).ldn_access[ldn] == 0) if (IBM_DS(shpnt).ldn_access[ldn] == 0)
return (0); return (0);
return (IBM_DS(host_index).ldn_access[ldn] * 100) / IBM_DS(host_index).total_accesses; return (IBM_DS(shpnt).ldn_access[ldn] * 100) / IBM_DS(shpnt).total_accesses;
} }
/* calculate total amount of r/w-accesses */ /* calculate total amount of r/w-accesses */
static int ldn_access_total_read_write(int host_index) static int ldn_access_total_read_write(struct Scsi_Host *shpnt)
{ {
int a; int a;
int i; int i;
a = 0; a = 0;
for (i = 0; i <= MAX_LOG_DEV; i++) 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]; a += IBM_DS(shpnt).ldn_read_access[i] + IBM_DS(shpnt).ldn_write_access[i];
return (a); return (a);
} }
static int ldn_access_total_inquiry(int host_index) static int ldn_access_total_inquiry(struct Scsi_Host *shpnt)
{ {
int a; int a;
int i; int i;
a = 0; a = 0;
for (i = 0; i <= MAX_LOG_DEV; i++) for (i = 0; i <= MAX_LOG_DEV; i++)
a += IBM_DS(host_index).ldn_inquiry_access[i]; a += IBM_DS(shpnt).ldn_inquiry_access[i];
return (a); return (a);
} }
static int ldn_access_total_modeselect(int host_index) static int ldn_access_total_modeselect(struct Scsi_Host *shpnt)
{ {
int a; int a;
int i; int i;
a = 0; a = 0;
for (i = 0; i <= MAX_LOG_DEV; i++) for (i = 0; i <= MAX_LOG_DEV; i++)
a += IBM_DS(host_index).ldn_modeselect_access[i]; a += IBM_DS(shpnt).ldn_modeselect_access[i];
return (a); return (a);
} }
...@@ -2398,19 +2271,14 @@ static int ldn_access_total_modeselect(int host_index) ...@@ -2398,19 +2271,14 @@ static int ldn_access_total_modeselect(int host_index)
static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout) static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, off_t offset, int length, int inout)
{ {
int len = 0; int len = 0;
int i, id, lun, host_index; int i, id, lun;
unsigned long flags; unsigned long flags;
int max_pun; int max_pun;
for (i = 0; hosts[i] && hosts[i] != shpnt; i++);
spin_lock_irqsave(hosts[i]->host_lock, flags); /* Check it */ spin_lock_irqsave(shpnt->host_lock, flags); /* Check it */
host_index = i;
if (!shpnt) { max_pun = subsystem_maxid(shpnt);
len += sprintf(buffer + len, "\nIBM MCA SCSI: Can't find adapter");
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, "\n IBM-SCSI-Subsystem-Linux-Driver, Version %s\n\n\n", IBMMCA_SCSI_DRIVER_VERSION);
len += sprintf(buffer + len, " SCSI Access-Statistics:\n"); len += sprintf(buffer + len, " SCSI Access-Statistics:\n");
...@@ -2421,40 +2289,40 @@ static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, ...@@ -2421,40 +2289,40 @@ static int ibmmca_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
len += sprintf(buffer + len, " Multiple LUN probing.....: No\n"); len += sprintf(buffer + len, " Multiple LUN probing.....: No\n");
#endif #endif
len += sprintf(buffer + len, " This Hostnumber..........: %d\n", shpnt->host_no); len += sprintf(buffer + len, " This Hostnumber..........: %d\n", shpnt->host_no);
len += sprintf(buffer + len, " Base I/O-Port............: 0x%x\n", (unsigned int) (IM_CMD_REG(host_index))); len += sprintf(buffer + len, " Base I/O-Port............: 0x%x\n", (unsigned int) (IM_CMD_REG(shpnt)));
len += sprintf(buffer + len, " (Shared) IRQ.............: %d\n", IM_IRQ); len += sprintf(buffer + len, " (Shared) IRQ.............: %d\n", IM_IRQ);
len += sprintf(buffer + len, " Total Interrupts.........: %d\n", IBM_DS(host_index).total_interrupts); len += sprintf(buffer + len, " Total Interrupts.........: %d\n", IBM_DS(shpnt).total_interrupts);
len += sprintf(buffer + len, " Total SCSI Accesses......: %d\n", IBM_DS(host_index).total_accesses); len += sprintf(buffer + len, " Total SCSI Accesses......: %d\n", IBM_DS(shpnt).total_accesses);
len += sprintf(buffer + len, " Total short SCBs.........: %d\n", IBM_DS(host_index).scbs); len += sprintf(buffer + len, " Total short SCBs.........: %d\n", IBM_DS(shpnt).scbs);
len += sprintf(buffer + len, " Total long SCBs..........: %d\n", IBM_DS(host_index).long_scbs); len += sprintf(buffer + len, " Total long SCBs..........: %d\n", IBM_DS(shpnt).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 READ/WRITE..: %d\n", ldn_access_total_read_write(shpnt));
len += sprintf(buffer + len, " Total SCSI Inquiries...: %d\n", ldn_access_total_inquiry(host_index)); len += sprintf(buffer + len, " Total SCSI Inquiries...: %d\n", ldn_access_total_inquiry(shpnt));
len += sprintf(buffer + len, " Total SCSI Modeselects.: %d\n", ldn_access_total_modeselect(host_index)); len += sprintf(buffer + len, " Total SCSI Modeselects.: %d\n", ldn_access_total_modeselect(shpnt));
len += sprintf(buffer + len, " Total SCSI other cmds..: %d\n", IBM_DS(host_index).total_accesses - ldn_access_total_read_write(host_index) len += sprintf(buffer + len, " Total SCSI other cmds..: %d\n", IBM_DS(shpnt).total_accesses - ldn_access_total_read_write(shpnt)
- ldn_access_total_modeselect(host_index) - ldn_access_total_modeselect(shpnt)
- ldn_access_total_inquiry(host_index)); - ldn_access_total_inquiry(shpnt));
len += sprintf(buffer + len, " Total SCSI command fails.: %d\n\n", IBM_DS(host_index).total_errors); len += sprintf(buffer + len, " Total SCSI command fails.: %d\n\n", IBM_DS(shpnt).total_errors);
len += sprintf(buffer + len, " Logical-Device-Number (LDN) Access-Statistics:\n"); len += sprintf(buffer + len, " Logical-Device-Number (LDN) Access-Statistics:\n");
len += sprintf(buffer + len, " LDN | Accesses [%%] | READ | WRITE | ASSIGNMENTS\n"); len += sprintf(buffer + len, " LDN | Accesses [%%] | READ | WRITE | ASSIGNMENTS\n");
len += sprintf(buffer + len, " -----|--------------|-----------|-----------|--------------\n"); len += sprintf(buffer + len, " -----|--------------|-----------|-----------|--------------\n");
for (i = 0; i <= MAX_LOG_DEV; i++) 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(shpnt, i), IBM_DS(shpnt).ldn_read_access[i], IBM_DS(shpnt).ldn_write_access[i], IBM_DS(shpnt).ldn_assignments[i]);
len += sprintf(buffer + len, " -----------------------------------------------------------\n\n"); len += sprintf(buffer + len, " -----------------------------------------------------------\n\n");
len += sprintf(buffer + len, " Dynamical-LDN-Assignment-Statistics:\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, " Number of physical SCSI-devices..: %d (+ Adapter)\n", IBM_DS(shpnt).total_scsi_devices);
len += sprintf(buffer + len, " Dynamical Assignment necessary...: %s\n", IBM_DS(host_index).dyn_flag ? "Yes" : "No "); len += sprintf(buffer + len, " Dynamical Assignment necessary...: %s\n", IBM_DS(shpnt).dyn_flag ? "Yes" : "No ");
len += sprintf(buffer + len, " Next LDN to be assigned..........: 0x%x\n", next_ldn(host_index)); len += sprintf(buffer + len, " Next LDN to be assigned..........: 0x%x\n", next_ldn(shpnt));
len += sprintf(buffer + len, " Dynamical assignments done yet...: %d\n", IBM_DS(host_index).dynamical_assignments); len += sprintf(buffer + len, " Dynamical assignments done yet...: %d\n", IBM_DS(shpnt).dynamical_assignments);
len += sprintf(buffer + len, "\n Current SCSI-Device-Mapping:\n"); 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, " 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"); 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++) { for (id = 0; id < max_pun; id++) {
len += sprintf(buffer + len, " %2d ", id); len += sprintf(buffer + len, " %2d ", id);
for (lun = 0; lun < 8; lun++) for (lun = 0; lun < 8; lun++)
len += sprintf(buffer + len, "%2s ", ti_p(get_scsi(host_index)[id][lun])); len += sprintf(buffer + len, "%2s ", ti_p(get_scsi(shpnt)[id][lun]));
len += sprintf(buffer + len, " %2d ", id); len += sprintf(buffer + len, " %2d ", id);
for (lun = 0; lun < 8; lun++) for (lun = 0; lun < 8; lun++)
len += sprintf(buffer + len, "%2s ", ti_l(get_ldn(host_index)[id][lun])); len += sprintf(buffer + len, "%2s ", ti_l(get_ldn(shpnt)[id][lun]));
len += sprintf(buffer + len, "\n"); len += sprintf(buffer + len, "\n");
} }
...@@ -2488,20 +2356,31 @@ static int option_setup(char *str) ...@@ -2488,20 +2356,31 @@ static int option_setup(char *str)
__setup("ibmmcascsi=", option_setup); __setup("ibmmcascsi=", option_setup);
static struct scsi_host_template driver_template = { static struct mca_driver ibmmca_driver = {
.proc_name = "ibmmca", .id_table = ibmmca_id_table,
.proc_info = ibmmca_proc_info, .driver = {
.name = "IBM SCSI-Subsystem", .name = "ibmmca",
.detect = ibmmca_detect, .bus = &mca_bus_type,
.release = ibmmca_release, .probe = ibmmca_probe,
.queuecommand = ibmmca_queuecommand, .remove = __devexit_p(ibmmca_remove),
.eh_abort_handler = ibmmca_abort, },
.eh_host_reset_handler = ibmmca_host_reset,
.bios_param = ibmmca_biosparam,
.can_queue = 16,
.this_id = 7,
.sg_tablesize = 16,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
}; };
#include "scsi_module.c"
static int __init ibmmca_init(void)
{
#ifdef MODULE
/* If the driver is run as module, read from conf.modules or cmd-line */
if (boot_options)
option_setup(boot_options);
#endif
return mca_register_driver_integrated(&ibmmca_driver, MCA_INTEGSCSI);
}
static void __exit ibmmca_exit(void)
{
mca_unregister_driver(&ibmmca_driver);
}
module_init(ibmmca_init);
module_exit(ibmmca_exit);
drivers/scsi/ibmmca.h deleted 100644 → 0
View file @ a53eb5e0
/*
* Low Level Driver for the IBM Microchannel SCSI Subsystem
* (Headerfile, see Documentation/scsi/ibmmca.txt for description of the
* IBM MCA SCSI-driver.
* For use under the GNU General Public License within the Linux-kernel project.
* This include file works only correctly with kernel 2.4.0 or higher!!! */
#ifndef _IBMMCA_H
#define _IBMMCA_H
/* Common forward declarations for all Linux-versions: */
/* Interfaces to the midlevel Linux SCSI driver */
static int ibmmca_detect (struct scsi_host_template *);
static int ibmmca_release (struct Scsi_Host *);
static int ibmmca_queuecommand (Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
static int ibmmca_abort (Scsi_Cmnd *);
static int ibmmca_host_reset (Scsi_Cmnd *);
static int ibmmca_biosparam (struct scsi_device *, struct block_device *, sector_t, int *);
#endif /* _IBMMCA_H */
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