/*
|
/*
|
* linux/arch/arm/drivers/scsi/fas216.c
|
* linux/arch/arm/drivers/scsi/fas216.c
|
*
|
*
|
* Copyright (C) 1997 Russell King
|
* Copyright (C) 1997 Russell King
|
*
|
*
|
* Based on information in qlogicfas.c by Tom Zerucha, Michael Griffith, and
|
* Based on information in qlogicfas.c by Tom Zerucha, Michael Griffith, and
|
* other sources, including:
|
* other sources, including:
|
* the AMD Am53CF94 data sheet
|
* the AMD Am53CF94 data sheet
|
*
|
*
|
* This is a generic driver. To use it, have a look at cumana_2.c. You
|
* This is a generic driver. To use it, have a look at cumana_2.c. You
|
* should define your own structure that overlays FAS216_Info, eg:
|
* should define your own structure that overlays FAS216_Info, eg:
|
* struct my_host_data {
|
* struct my_host_data {
|
* FAS216_Info info;
|
* FAS216_Info info;
|
* ... my host specific data ...
|
* ... my host specific data ...
|
* };
|
* };
|
*
|
*
|
* Changelog:
|
* Changelog:
|
* 30-08-1997 RMK Created
|
* 30-08-1997 RMK Created
|
* 14-09-1997 RMK Started disconnect support
|
* 14-09-1997 RMK Started disconnect support
|
* 08-02-1998 RMK Corrected real DMA support
|
* 08-02-1998 RMK Corrected real DMA support
|
* 15-02-1998 RMK Started sync xfer support
|
* 15-02-1998 RMK Started sync xfer support
|
* 06-04-1998 RMK Tightened conditions for printing incomplete
|
* 06-04-1998 RMK Tightened conditions for printing incomplete
|
* transfers
|
* transfers
|
* 02-05-1998 RMK Added extra checks in fas216_reset
|
* 02-05-1998 RMK Added extra checks in fas216_reset
|
* 24-05-1998 RMK Fixed synchronous transfers with period >= 200ns
|
* 24-05-1998 RMK Fixed synchronous transfers with period >= 200ns
|
* 26-08-1998 RMK Improved message support wrt MESSAGE_REJECT
|
* 26-08-1998 RMK Improved message support wrt MESSAGE_REJECT
|
*
|
*
|
* Todo:
|
* Todo:
|
* - allow individual devices to enable sync xfers.
|
* - allow individual devices to enable sync xfers.
|
*/
|
*/
|
|
|
#define __NO_VERSION__
|
#define __NO_VERSION__
|
|
|
#include <linux/module.h>
|
#include <linux/module.h>
|
#include <linux/blk.h>
|
#include <linux/blk.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
#include <linux/string.h>
|
#include <linux/string.h>
|
#include <linux/ioport.h>
|
#include <linux/ioport.h>
|
#include <linux/sched.h>
|
#include <linux/sched.h>
|
#include <linux/proc_fs.h>
|
#include <linux/proc_fs.h>
|
#include <linux/unistd.h>
|
#include <linux/unistd.h>
|
#include <linux/stat.h>
|
#include <linux/stat.h>
|
|
|
#include <asm/delay.h>
|
#include <asm/delay.h>
|
#include <asm/dma.h>
|
#include <asm/dma.h>
|
#include <asm/io.h>
|
#include <asm/io.h>
|
#include <asm/irq.h>
|
#include <asm/irq.h>
|
#include <asm/ecard.h>
|
#include <asm/ecard.h>
|
|
|
#define FAS216_C
|
#define FAS216_C
|
|
|
#include "scsi.h"
|
#include "scsi.h"
|
#include "hosts.h"
|
#include "hosts.h"
|
#include "fas216.h"
|
#include "fas216.h"
|
|
|
#define VER_MAJOR 0
|
#define VER_MAJOR 0
|
#define VER_MINOR 0
|
#define VER_MINOR 0
|
#define VER_PATCH 5
|
#define VER_PATCH 5
|
|
|
#define SCSI2_TAG
|
#define SCSI2_TAG
|
|
|
/* NOTE: SCSI2 Synchronous transfers *require* DMA according to
|
/* NOTE: SCSI2 Synchronous transfers *require* DMA according to
|
* the data sheet. This restriction is crazy, especially when
|
* the data sheet. This restriction is crazy, especially when
|
* you only want to send 16 bytes! What were the guys who
|
* you only want to send 16 bytes! What were the guys who
|
* designed this chip on at that time? Did they read the SCSI2
|
* designed this chip on at that time? Did they read the SCSI2
|
* spec at all? The following sections are taken from the SCSI2
|
* spec at all? The following sections are taken from the SCSI2
|
* standard (s2r10) concerning this:
|
* standard (s2r10) concerning this:
|
*
|
*
|
* > IMPLEMENTORS NOTES:
|
* > IMPLEMENTORS NOTES:
|
* > (1) Re-negotiation at every selection is not recommended, since a
|
* > (1) Re-negotiation at every selection is not recommended, since a
|
* > significant performance impact is likely.
|
* > significant performance impact is likely.
|
*
|
*
|
* > The implied synchronous agreement shall remain in effect until a BUS DEVICE
|
* > The implied synchronous agreement shall remain in effect until a BUS DEVICE
|
* > RESET message is received, until a hard reset condition occurs, or until one
|
* > RESET message is received, until a hard reset condition occurs, or until one
|
* > of the two SCSI devices elects to modify the agreement. The default data
|
* > of the two SCSI devices elects to modify the agreement. The default data
|
* > transfer mode is asynchronous data transfer mode. The default data transfer
|
* > transfer mode is asynchronous data transfer mode. The default data transfer
|
* > mode is entered at power on, after a BUS DEVICE RESET message, or after a hard
|
* > mode is entered at power on, after a BUS DEVICE RESET message, or after a hard
|
* > reset condition.
|
* > reset condition.
|
*
|
*
|
* In total, this means that once you have elected to use synchronous
|
* In total, this means that once you have elected to use synchronous
|
* transfers, you must always use DMA.
|
* transfers, you must always use DMA.
|
*
|
*
|
* I was thinking that this was a good chip until I found this restriction ;(
|
* I was thinking that this was a good chip until I found this restriction ;(
|
*/
|
*/
|
#define SCSI2_SYNC
|
#define SCSI2_SYNC
|
|
|
#define SCSI2_WIDE
|
#define SCSI2_WIDE
|
|
|
#undef DEBUG_CONNECT
|
#undef DEBUG_CONNECT
|
#undef DEBUG_BUSSERVICE
|
#undef DEBUG_BUSSERVICE
|
#undef DEBUG_FUNCTIONDONE
|
#undef DEBUG_FUNCTIONDONE
|
#undef DEBUG_MESSAGES
|
#undef DEBUG_MESSAGES
|
|
|
#undef CHECK_STRUCTURE
|
#undef CHECK_STRUCTURE
|
|
|
static struct { int stat, ssr, isr, ph; } list[8];
|
static struct { int stat, ssr, isr, ph; } list[8];
|
static int ptr;
|
static int ptr;
|
|
|
static void fas216_dumpstate(FAS216_Info *info)
|
static void fas216_dumpstate(FAS216_Info *info)
|
{
|
{
|
printk("FAS216: CTCL=%02X CTCM=%02X CMD=%02X STAT=%02X"
|
printk("FAS216: CTCL=%02X CTCM=%02X CMD=%02X STAT=%02X"
|
" INST=%02X IS=%02X CFIS=%02X",
|
" INST=%02X IS=%02X CFIS=%02X",
|
inb(REG_CTCL(info)), inb(REG_CTCM(info)),
|
inb(REG_CTCL(info)), inb(REG_CTCM(info)),
|
inb(REG_CMD(info)), inb(REG_STAT(info)),
|
inb(REG_CMD(info)), inb(REG_STAT(info)),
|
inb(REG_INST(info)), inb(REG_IS(info)),
|
inb(REG_INST(info)), inb(REG_IS(info)),
|
inb(REG_CFIS(info)));
|
inb(REG_CFIS(info)));
|
printk(" CNTL1=%02X CNTL2=%02X CNTL3=%02X CTCH=%02X\n",
|
printk(" CNTL1=%02X CNTL2=%02X CNTL3=%02X CTCH=%02X\n",
|
inb(REG_CNTL1(info)), inb(REG_CNTL2(info)),
|
inb(REG_CNTL1(info)), inb(REG_CNTL2(info)),
|
inb(REG_CNTL3(info)), inb(REG_CTCH(info)));
|
inb(REG_CNTL3(info)), inb(REG_CTCH(info)));
|
}
|
}
|
|
|
static void fas216_dumpinfo(FAS216_Info *info)
|
static void fas216_dumpinfo(FAS216_Info *info)
|
{
|
{
|
static int used = 0;
|
static int used = 0;
|
int i;
|
int i;
|
|
|
if (used++)
|
if (used++)
|
return;
|
return;
|
|
|
printk("FAS216_Info=\n");
|
printk("FAS216_Info=\n");
|
printk(" { magic_start=%lX host=%p SCpnt=%p origSCpnt=%p\n",
|
printk(" { magic_start=%lX host=%p SCpnt=%p origSCpnt=%p\n",
|
info->magic_start, info->host, info->SCpnt,
|
info->magic_start, info->host, info->SCpnt,
|
info->origSCpnt);
|
info->origSCpnt);
|
printk(" scsi={ io_port=%X io_shift=%X irq=%X cfg={ %X %X %X %X }\n",
|
printk(" scsi={ io_port=%X io_shift=%X irq=%X cfg={ %X %X %X %X }\n",
|
info->scsi.io_port, info->scsi.io_shift, info->scsi.irq,
|
info->scsi.io_port, info->scsi.io_shift, info->scsi.irq,
|
info->scsi.cfg[0], info->scsi.cfg[1], info->scsi.cfg[2],
|
info->scsi.cfg[0], info->scsi.cfg[1], info->scsi.cfg[2],
|
info->scsi.cfg[3]);
|
info->scsi.cfg[3]);
|
printk(" type=%p phase=%X reconnected={ target=%d lun=%d tag=%d }\n",
|
printk(" type=%p phase=%X reconnected={ target=%d lun=%d tag=%d }\n",
|
info->scsi.type, info->scsi.phase,
|
info->scsi.type, info->scsi.phase,
|
info->scsi.reconnected.target,
|
info->scsi.reconnected.target,
|
info->scsi.reconnected.lun, info->scsi.reconnected.tag);
|
info->scsi.reconnected.lun, info->scsi.reconnected.tag);
|
printk(" SCp={ ptr=%p this_residual=%X buffer=%p buffers_residual=%X }\n",
|
printk(" SCp={ ptr=%p this_residual=%X buffer=%p buffers_residual=%X }\n",
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual,
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual,
|
info->scsi.SCp.buffer, info->scsi.SCp.buffers_residual);
|
info->scsi.SCp.buffer, info->scsi.SCp.buffers_residual);
|
printk(" msgs async_stp=%X disconnectable=%d aborting=%d }\n",
|
printk(" msgs async_stp=%X disconnectable=%d aborting=%d }\n",
|
info->scsi.async_stp,
|
info->scsi.async_stp,
|
info->scsi.disconnectable, info->scsi.aborting);
|
info->scsi.disconnectable, info->scsi.aborting);
|
printk(" stats={ queues=%X removes=%X fins=%X reads=%X writes=%X miscs=%X\n"
|
printk(" stats={ queues=%X removes=%X fins=%X reads=%X writes=%X miscs=%X\n"
|
" disconnects=%X aborts=%X resets=%X }\n",
|
" disconnects=%X aborts=%X resets=%X }\n",
|
info->stats.queues, info->stats.removes, info->stats.fins,
|
info->stats.queues, info->stats.removes, info->stats.fins,
|
info->stats.reads, info->stats.writes, info->stats.miscs,
|
info->stats.reads, info->stats.writes, info->stats.miscs,
|
info->stats.disconnects, info->stats.aborts, info->stats.resets);
|
info->stats.disconnects, info->stats.aborts, info->stats.resets);
|
printk(" ifcfg={ clockrate=%X select_timeout=%X asyncperiod=%X sync_max_depth=%X }\n",
|
printk(" ifcfg={ clockrate=%X select_timeout=%X asyncperiod=%X sync_max_depth=%X }\n",
|
info->ifcfg.clockrate, info->ifcfg.select_timeout,
|
info->ifcfg.clockrate, info->ifcfg.select_timeout,
|
info->ifcfg.asyncperiod, info->ifcfg.sync_max_depth);
|
info->ifcfg.asyncperiod, info->ifcfg.sync_max_depth);
|
for (i = 0; i < 8; i++) {
|
for (i = 0; i < 8; i++) {
|
printk(" busyluns[%d]=%X dev[%d]={ disconnect_ok=%d stp=%X sof=%X sync_state=%X }\n",
|
printk(" busyluns[%d]=%X dev[%d]={ disconnect_ok=%d stp=%X sof=%X sync_state=%X }\n",
|
i, info->busyluns[i], i,
|
i, info->busyluns[i], i,
|
info->device[i].disconnect_ok, info->device[i].stp,
|
info->device[i].disconnect_ok, info->device[i].stp,
|
info->device[i].sof, info->device[i].sync_state);
|
info->device[i].sof, info->device[i].sync_state);
|
}
|
}
|
printk(" dma={ transfer_type=%X setup=%p pseudo=%p stop=%p }\n",
|
printk(" dma={ transfer_type=%X setup=%p pseudo=%p stop=%p }\n",
|
info->dma.transfer_type, info->dma.setup,
|
info->dma.transfer_type, info->dma.setup,
|
info->dma.pseudo, info->dma.stop);
|
info->dma.pseudo, info->dma.stop);
|
printk(" internal_done=%X magic_end=%lX }\n",
|
printk(" internal_done=%X magic_end=%lX }\n",
|
info->internal_done, info->magic_end);
|
info->internal_done, info->magic_end);
|
}
|
}
|
|
|
#ifdef CHECK_STRUCTURE
|
#ifdef CHECK_STRUCTURE
|
static void fas216_checkmagic(FAS216_Info *info, const char *func)
|
static void fas216_checkmagic(FAS216_Info *info, const char *func)
|
{
|
{
|
int corruption = 0;
|
int corruption = 0;
|
if (info->magic_start != MAGIC) {
|
if (info->magic_start != MAGIC) {
|
printk(KERN_CRIT "FAS216 Error: magic at start corrupted\n");
|
printk(KERN_CRIT "FAS216 Error: magic at start corrupted\n");
|
corruption++;
|
corruption++;
|
}
|
}
|
if (info->magic_end != MAGIC) {
|
if (info->magic_end != MAGIC) {
|
printk(KERN_CRIT "FAS216 Error: magic at end corrupted\n");
|
printk(KERN_CRIT "FAS216 Error: magic at end corrupted\n");
|
corruption++;
|
corruption++;
|
}
|
}
|
if (corruption) {
|
if (corruption) {
|
fas216_dumpinfo(info);
|
fas216_dumpinfo(info);
|
panic("scsi memory space corrupted in %s", func);
|
panic("scsi memory space corrupted in %s", func);
|
}
|
}
|
}
|
}
|
#else
|
#else
|
#define fas216_checkmagic(info,func)
|
#define fas216_checkmagic(info,func)
|
#endif
|
#endif
|
|
|
static const char *fas216_bus_phase(int stat)
|
static const char *fas216_bus_phase(int stat)
|
{
|
{
|
static const char *phases[] = {
|
static const char *phases[] = {
|
"DATA OUT", "DATA IN",
|
"DATA OUT", "DATA IN",
|
"COMMAND", "STATUS",
|
"COMMAND", "STATUS",
|
"MISC OUT", "MISC IN",
|
"MISC OUT", "MISC IN",
|
"MESG OUT", "MESG IN"
|
"MESG OUT", "MESG IN"
|
};
|
};
|
|
|
return phases[stat & STAT_BUSMASK];
|
return phases[stat & STAT_BUSMASK];
|
}
|
}
|
|
|
static const char *fas216_drv_phase(FAS216_Info *info)
|
static const char *fas216_drv_phase(FAS216_Info *info)
|
{
|
{
|
switch (info->scsi.phase) {
|
switch (info->scsi.phase) {
|
case PHASE_IDLE: return "idle";
|
case PHASE_IDLE: return "idle";
|
case PHASE_SELECTION: return "selection";
|
case PHASE_SELECTION: return "selection";
|
case PHASE_COMMAND: return "command";
|
case PHASE_COMMAND: return "command";
|
case PHASE_RECONNECTED: return "reconnected";
|
case PHASE_RECONNECTED: return "reconnected";
|
case PHASE_DATAOUT: return "data out";
|
case PHASE_DATAOUT: return "data out";
|
case PHASE_DATAIN: return "data in";
|
case PHASE_DATAIN: return "data in";
|
case PHASE_MSGIN: return "message in";
|
case PHASE_MSGIN: return "message in";
|
case PHASE_MSGIN_DISCONNECT: return "disconnect";
|
case PHASE_MSGIN_DISCONNECT: return "disconnect";
|
case PHASE_MSGOUT_EXPECT: return "expect message out";
|
case PHASE_MSGOUT_EXPECT: return "expect message out";
|
case PHASE_MSGOUT: return "message out";
|
case PHASE_MSGOUT: return "message out";
|
case PHASE_STATUS: return "status";
|
case PHASE_STATUS: return "status";
|
case PHASE_DONE: return "done";
|
case PHASE_DONE: return "done";
|
default: return "???";
|
default: return "???";
|
}
|
}
|
}
|
}
|
|
|
static char fas216_target(FAS216_Info *info)
|
static char fas216_target(FAS216_Info *info)
|
{
|
{
|
if (info->SCpnt)
|
if (info->SCpnt)
|
return '0' + info->SCpnt->target;
|
return '0' + info->SCpnt->target;
|
else
|
else
|
return 'H';
|
return 'H';
|
}
|
}
|
|
|
static void add_debug_list(int stat, int ssr, int isr, int ph)
|
static void add_debug_list(int stat, int ssr, int isr, int ph)
|
{
|
{
|
list[ptr].stat = stat;
|
list[ptr].stat = stat;
|
list[ptr].ssr = ssr;
|
list[ptr].ssr = ssr;
|
list[ptr].isr = isr;
|
list[ptr].isr = isr;
|
list[ptr].ph = ph;
|
list[ptr].ph = ph;
|
|
|
ptr = (ptr + 1) & 7;
|
ptr = (ptr + 1) & 7;
|
}
|
}
|
|
|
static void print_debug_list(void)
|
static void print_debug_list(void)
|
{
|
{
|
int i;
|
int i;
|
|
|
i = ptr;
|
i = ptr;
|
|
|
printk(KERN_ERR "SCSI IRQ trail: ");
|
printk(KERN_ERR "SCSI IRQ trail: ");
|
do {
|
do {
|
printk("%02X:%02X:%02X:%1X ",
|
printk("%02X:%02X:%02X:%1X ",
|
list[i].stat, list[i].ssr,
|
list[i].stat, list[i].ssr,
|
list[i].isr, list[i].ph);
|
list[i].isr, list[i].ph);
|
i = (i + 1) & 7;
|
i = (i + 1) & 7;
|
} while (i != ptr);
|
} while (i != ptr);
|
printk("\n");
|
printk("\n");
|
}
|
}
|
|
|
static void fas216_done(FAS216_Info *info, unsigned int result);
|
static void fas216_done(FAS216_Info *info, unsigned int result);
|
|
|
/* Function: int fas216_clockrate(unsigned int clock)
|
/* Function: int fas216_clockrate(unsigned int clock)
|
* Purpose : calculate correct value to be written into clock conversion
|
* Purpose : calculate correct value to be written into clock conversion
|
* factor register.
|
* factor register.
|
* Params : clock - clock speed in MHz
|
* Params : clock - clock speed in MHz
|
* Returns : CLKF_ value
|
* Returns : CLKF_ value
|
*/
|
*/
|
static int fas216_clockrate(int clock)
|
static int fas216_clockrate(int clock)
|
{
|
{
|
if (clock <= 10 || clock > 40) {
|
if (clock <= 10 || clock > 40) {
|
printk(KERN_CRIT
|
printk(KERN_CRIT
|
"fas216: invalid clock rate: check your driver!\n");
|
"fas216: invalid clock rate: check your driver!\n");
|
clock = -1;
|
clock = -1;
|
} else
|
} else
|
clock = ((clock - 1) / 5 + 1) & 7;
|
clock = ((clock - 1) / 5 + 1) & 7;
|
|
|
return clock;
|
return clock;
|
}
|
}
|
|
|
/* Function: unsigned short fas216_get_last_msg(FAS216_Info *info, int pos)
|
/* Function: unsigned short fas216_get_last_msg(FAS216_Info *info, int pos)
|
* Purpose : retrieve a last message from the list, using position in fifo
|
* Purpose : retrieve a last message from the list, using position in fifo
|
* Params : info - interface to search
|
* Params : info - interface to search
|
* : pos - current fifo position
|
* : pos - current fifo position
|
*/
|
*/
|
static inline unsigned short
|
static inline unsigned short
|
fas216_get_last_msg(FAS216_Info *info, int pos)
|
fas216_get_last_msg(FAS216_Info *info, int pos)
|
{
|
{
|
unsigned short packed_msg = NOP;
|
unsigned short packed_msg = NOP;
|
struct message *msg;
|
struct message *msg;
|
int msgnr = 0;
|
int msgnr = 0;
|
|
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
if (pos >= msg->fifo)
|
if (pos >= msg->fifo)
|
break;
|
break;
|
}
|
}
|
|
|
if (msg) {
|
if (msg) {
|
if (msg->msg[0] == EXTENDED_MESSAGE)
|
if (msg->msg[0] == EXTENDED_MESSAGE)
|
packed_msg = EXTENDED_MESSAGE | msg->msg[2] << 8;
|
packed_msg = EXTENDED_MESSAGE | msg->msg[2] << 8;
|
else
|
else
|
packed_msg = msg->msg[0];
|
packed_msg = msg->msg[0];
|
}
|
}
|
|
|
#ifdef DEBUG_MESSAGES
|
#ifdef DEBUG_MESSAGES
|
printk("Message: %04X found at position %02X\n",
|
printk("Message: %04X found at position %02X\n",
|
packed_msg, pos);
|
packed_msg, pos);
|
#endif
|
#endif
|
return packed_msg;
|
return packed_msg;
|
}
|
}
|
|
|
/* Function: int fas216_syncperiod(FAS216_Info *info, int ns)
|
/* Function: int fas216_syncperiod(FAS216_Info *info, int ns)
|
* Purpose : Calculate value to be loaded into the STP register
|
* Purpose : Calculate value to be loaded into the STP register
|
* for a given period in ns
|
* for a given period in ns
|
* Params : info - state structure for interface connected to device
|
* Params : info - state structure for interface connected to device
|
* : ns - period in ns (between subsequent bytes)
|
* : ns - period in ns (between subsequent bytes)
|
* Returns : Value suitable for REG_STP
|
* Returns : Value suitable for REG_STP
|
*/
|
*/
|
static int
|
static int
|
fas216_syncperiod(FAS216_Info *info, int ns)
|
fas216_syncperiod(FAS216_Info *info, int ns)
|
{
|
{
|
int value = (info->ifcfg.clockrate * ns) / 1000;
|
int value = (info->ifcfg.clockrate * ns) / 1000;
|
|
|
fas216_checkmagic(info, "fas216_syncperiod");
|
fas216_checkmagic(info, "fas216_syncperiod");
|
|
|
if (value < 4)
|
if (value < 4)
|
value = 4;
|
value = 4;
|
else if (value > 35)
|
else if (value > 35)
|
value = 35;
|
value = 35;
|
|
|
return value & 31;
|
return value & 31;
|
}
|
}
|
|
|
/* Function: void fas216_set_sync(FAS216_Info *info, int target)
|
/* Function: void fas216_set_sync(FAS216_Info *info, int target)
|
* Purpose : Correctly setup FAS216 chip for specified transfer period.
|
* Purpose : Correctly setup FAS216 chip for specified transfer period.
|
* Params : info - state structure for interface
|
* Params : info - state structure for interface
|
* : target - target
|
* : target - target
|
* Notes : we need to switch the chip out of FASTSCSI mode if we have
|
* Notes : we need to switch the chip out of FASTSCSI mode if we have
|
* a transfer period >= 200ns - otherwise the chip will violate
|
* a transfer period >= 200ns - otherwise the chip will violate
|
* the SCSI timings.
|
* the SCSI timings.
|
*/
|
*/
|
static void
|
static void
|
fas216_set_sync(FAS216_Info *info, int target)
|
fas216_set_sync(FAS216_Info *info, int target)
|
{
|
{
|
outb(info->device[target].sof, REG_SOF(info));
|
outb(info->device[target].sof, REG_SOF(info));
|
outb(info->device[target].stp, REG_STP(info));
|
outb(info->device[target].stp, REG_STP(info));
|
if (info->device[target].period >= (200 / 4))
|
if (info->device[target].period >= (200 / 4))
|
outb(info->scsi.cfg[2] & ~CNTL3_FASTSCSI, REG_CNTL3(info));
|
outb(info->scsi.cfg[2] & ~CNTL3_FASTSCSI, REG_CNTL3(info));
|
else
|
else
|
outb(info->scsi.cfg[2], REG_CNTL3(info));
|
outb(info->scsi.cfg[2], REG_CNTL3(info));
|
}
|
}
|
|
|
/* Synchronous transfer support
|
/* Synchronous transfer support
|
*
|
*
|
* Note: The SCSI II r10 spec says (5.6.12):
|
* Note: The SCSI II r10 spec says (5.6.12):
|
*
|
*
|
* (2) Due to historical problems with early host adapters that could
|
* (2) Due to historical problems with early host adapters that could
|
* not accept an SDTR message, some targets may not initiate synchronous
|
* not accept an SDTR message, some targets may not initiate synchronous
|
* negotiation after a power cycle as required by this standard. Host
|
* negotiation after a power cycle as required by this standard. Host
|
* adapters that support synchronous mode may avoid the ensuing failure
|
* adapters that support synchronous mode may avoid the ensuing failure
|
* modes when the target is independently power cycled by initiating a
|
* modes when the target is independently power cycled by initiating a
|
* synchronous negotiation on each REQUEST SENSE and INQUIRY command.
|
* synchronous negotiation on each REQUEST SENSE and INQUIRY command.
|
* This approach increases the SCSI bus overhead and is not recommended
|
* This approach increases the SCSI bus overhead and is not recommended
|
* for new implementations. The correct method is to respond to an
|
* for new implementations. The correct method is to respond to an
|
* SDTR message with a MESSAGE REJECT message if the either the
|
* SDTR message with a MESSAGE REJECT message if the either the
|
* initiator or target devices does not support synchronous transfers
|
* initiator or target devices does not support synchronous transfers
|
* or does not want to negotiate for synchronous transfers at the time.
|
* or does not want to negotiate for synchronous transfers at the time.
|
* Using the correct method assures compatibility with wide data
|
* Using the correct method assures compatibility with wide data
|
* transfers and future enhancements.
|
* transfers and future enhancements.
|
*
|
*
|
* We will always initiate a synchronous transfer negociation request on
|
* We will always initiate a synchronous transfer negociation request on
|
* every INQUIRY or REQUEST SENSE message, unless the target itself has
|
* every INQUIRY or REQUEST SENSE message, unless the target itself has
|
* at some point performed a synchronous transfer negociation request, or
|
* at some point performed a synchronous transfer negociation request, or
|
* we have synchronous transfers disabled for this device.
|
* we have synchronous transfers disabled for this device.
|
*/
|
*/
|
|
|
/* Function: void fas216_handlesync(FAS216_Info *info, char *msg)
|
/* Function: void fas216_handlesync(FAS216_Info *info, char *msg)
|
* Purpose : Handle a synchronous transfer message from the target
|
* Purpose : Handle a synchronous transfer message from the target
|
* Params : info - state structure for interface
|
* Params : info - state structure for interface
|
* : msg - message from target
|
* : msg - message from target
|
*/
|
*/
|
static void
|
static void
|
fas216_handlesync(FAS216_Info *info, char *msg)
|
fas216_handlesync(FAS216_Info *info, char *msg)
|
{
|
{
|
struct fas216_device *dev = &info->device[info->SCpnt->target];
|
struct fas216_device *dev = &info->device[info->SCpnt->target];
|
enum { sync, async, none, reject } res = none;
|
enum { sync, async, none, reject } res = none;
|
|
|
#ifdef SCSI2_SYNC
|
#ifdef SCSI2_SYNC
|
switch (msg[0]) {
|
switch (msg[0]) {
|
case MESSAGE_REJECT:
|
case MESSAGE_REJECT:
|
/* Synchronous transfer request failed.
|
/* Synchronous transfer request failed.
|
* Note: SCSI II r10:
|
* Note: SCSI II r10:
|
*
|
*
|
* SCSI devices that are capable of synchronous
|
* SCSI devices that are capable of synchronous
|
* data transfers shall not respond to an SDTR
|
* data transfers shall not respond to an SDTR
|
* message with a MESSAGE REJECT message.
|
* message with a MESSAGE REJECT message.
|
*
|
*
|
* Hence, if we get this condition, we disable
|
* Hence, if we get this condition, we disable
|
* negociation for this device.
|
* negociation for this device.
|
*/
|
*/
|
if (dev->sync_state == neg_inprogress) {
|
if (dev->sync_state == neg_inprogress) {
|
dev->sync_state = neg_invalid;
|
dev->sync_state = neg_invalid;
|
res = async;
|
res = async;
|
}
|
}
|
break;
|
break;
|
|
|
case EXTENDED_MESSAGE:
|
case EXTENDED_MESSAGE:
|
switch (dev->sync_state) {
|
switch (dev->sync_state) {
|
/* We don't accept synchronous transfer requests.
|
/* We don't accept synchronous transfer requests.
|
* Respond with a MESSAGE_REJECT to prevent a
|
* Respond with a MESSAGE_REJECT to prevent a
|
* synchronous transfer agreement from being reached.
|
* synchronous transfer agreement from being reached.
|
*/
|
*/
|
case neg_invalid:
|
case neg_invalid:
|
res = reject;
|
res = reject;
|
break;
|
break;
|
|
|
/* We were not negociating a synchronous transfer,
|
/* We were not negociating a synchronous transfer,
|
* but the device sent us a negociation request.
|
* but the device sent us a negociation request.
|
* Honour the request by sending back a SDTR
|
* Honour the request by sending back a SDTR
|
* message containing our capability, limited by
|
* message containing our capability, limited by
|
* the targets capability.
|
* the targets capability.
|
*/
|
*/
|
default:
|
default:
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
if (msg[4] > info->ifcfg.sync_max_depth)
|
if (msg[4] > info->ifcfg.sync_max_depth)
|
msg[4] = info->ifcfg.sync_max_depth;
|
msg[4] = info->ifcfg.sync_max_depth;
|
if (msg[3] < 1000 / info->ifcfg.clockrate)
|
if (msg[3] < 1000 / info->ifcfg.clockrate)
|
msg[3] = 1000 / info->ifcfg.clockrate;
|
msg[3] = 1000 / info->ifcfg.clockrate;
|
|
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 5,
|
msgqueue_addmsg(&info->scsi.msgs, 5,
|
EXTENDED_MESSAGE, 3, EXTENDED_SDTR,
|
EXTENDED_MESSAGE, 3, EXTENDED_SDTR,
|
msg[3], msg[4]);
|
msg[3], msg[4]);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
|
|
/* This is wrong. The agreement is not in effect
|
/* This is wrong. The agreement is not in effect
|
* until this message is accepted by the device
|
* until this message is accepted by the device
|
*/
|
*/
|
dev->sync_state = neg_targcomplete;
|
dev->sync_state = neg_targcomplete;
|
res = sync;
|
res = sync;
|
break;
|
break;
|
|
|
/* We initiated the synchronous transfer negociation,
|
/* We initiated the synchronous transfer negociation,
|
* and have successfully received a response from the
|
* and have successfully received a response from the
|
* target. The synchronous transfer agreement has been
|
* target. The synchronous transfer agreement has been
|
* reached. Note: if the values returned are out of our
|
* reached. Note: if the values returned are out of our
|
* bounds, we must reject the message.
|
* bounds, we must reject the message.
|
*/
|
*/
|
case neg_inprogress:
|
case neg_inprogress:
|
res = reject;
|
res = reject;
|
if (msg[4] <= info->ifcfg.sync_max_depth &&
|
if (msg[4] <= info->ifcfg.sync_max_depth &&
|
msg[3] >= 1000 / info->ifcfg.clockrate) {
|
msg[3] >= 1000 / info->ifcfg.clockrate) {
|
dev->sync_state = neg_complete;
|
dev->sync_state = neg_complete;
|
res = sync;
|
res = sync;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
#else
|
#else
|
res = reject;
|
res = reject;
|
#endif
|
#endif
|
|
|
switch (res) {
|
switch (res) {
|
case sync:
|
case sync:
|
dev->period = msg[3];
|
dev->period = msg[3];
|
dev->sof = msg[4];
|
dev->sof = msg[4];
|
dev->stp = fas216_syncperiod(info, msg[3] * 4);
|
dev->stp = fas216_syncperiod(info, msg[3] * 4);
|
fas216_set_sync(info, info->SCpnt->target);
|
fas216_set_sync(info, info->SCpnt->target);
|
break;
|
break;
|
|
|
case reject:
|
case reject:
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
|
|
case async:
|
case async:
|
dev->period = info->ifcfg.asyncperiod / 4;
|
dev->period = info->ifcfg.asyncperiod / 4;
|
dev->sof = 0;
|
dev->sof = 0;
|
dev->stp = info->scsi.async_stp;
|
dev->stp = info->scsi.async_stp;
|
fas216_set_sync(info, info->SCpnt->target);
|
fas216_set_sync(info, info->SCpnt->target);
|
break;
|
break;
|
|
|
case none:
|
case none:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_handlewide(FAS216_Info *info, char *msg)
|
/* Function: void fas216_handlewide(FAS216_Info *info, char *msg)
|
* Purpose : Handle a wide transfer message from the target
|
* Purpose : Handle a wide transfer message from the target
|
* Params : info - state structure for interface
|
* Params : info - state structure for interface
|
* : msg - message from target
|
* : msg - message from target
|
*/
|
*/
|
static void
|
static void
|
fas216_handlewide(FAS216_Info *info, char *msg)
|
fas216_handlewide(FAS216_Info *info, char *msg)
|
{
|
{
|
struct fas216_device *dev = &info->device[info->SCpnt->target];
|
struct fas216_device *dev = &info->device[info->SCpnt->target];
|
enum { wide, bit8, none, reject } res = none;
|
enum { wide, bit8, none, reject } res = none;
|
|
|
#ifdef SCSI2_WIDE
|
#ifdef SCSI2_WIDE
|
switch (msg[0]) {
|
switch (msg[0]) {
|
case MESSAGE_REJECT:
|
case MESSAGE_REJECT:
|
/* Wide transfer request failed.
|
/* Wide transfer request failed.
|
* Note: SCSI II r10:
|
* Note: SCSI II r10:
|
*
|
*
|
* SCSI devices that are capable of wide
|
* SCSI devices that are capable of wide
|
* data transfers shall not respond to a
|
* data transfers shall not respond to a
|
* WDTR message with a MESSAGE REJECT message.
|
* WDTR message with a MESSAGE REJECT message.
|
*
|
*
|
* Hence, if we get this condition, we never
|
* Hence, if we get this condition, we never
|
* reattempt negociation for this device.
|
* reattempt negociation for this device.
|
*/
|
*/
|
if (dev->wide_state == neg_inprogress) {
|
if (dev->wide_state == neg_inprogress) {
|
dev->wide_state = neg_invalid;
|
dev->wide_state = neg_invalid;
|
res = bit8;
|
res = bit8;
|
}
|
}
|
break;
|
break;
|
|
|
case EXTENDED_MESSAGE:
|
case EXTENDED_MESSAGE:
|
switch (dev->wide_state) {
|
switch (dev->wide_state) {
|
/* We don't accept wide data transfer requests.
|
/* We don't accept wide data transfer requests.
|
* Respond with a MESSAGE REJECT to prevent a
|
* Respond with a MESSAGE REJECT to prevent a
|
* wide data transfer agreement from being reached.
|
* wide data transfer agreement from being reached.
|
*/
|
*/
|
case neg_invalid:
|
case neg_invalid:
|
res = reject;
|
res = reject;
|
break;
|
break;
|
|
|
/* We were not negociating a wide data transfer,
|
/* We were not negociating a wide data transfer,
|
* but the device sent is a negociation request.
|
* but the device sent is a negociation request.
|
* Honour the request by sending back a WDTR
|
* Honour the request by sending back a WDTR
|
* message containing our capability, limited by
|
* message containing our capability, limited by
|
* the targets capability.
|
* the targets capability.
|
*/
|
*/
|
default:
|
default:
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
if (msg[3] > info->ifcfg.wide_max_size)
|
if (msg[3] > info->ifcfg.wide_max_size)
|
msg[3] = info->ifcfg.wide_max_size;
|
msg[3] = info->ifcfg.wide_max_size;
|
|
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 4,
|
msgqueue_addmsg(&info->scsi.msgs, 4,
|
EXTENDED_MESSAGE, 2, EXTENDED_WDTR,
|
EXTENDED_MESSAGE, 2, EXTENDED_WDTR,
|
msg[3]);
|
msg[3]);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
res = wide;
|
res = wide;
|
break;
|
break;
|
|
|
/* We initiated the wide data transfer negociation,
|
/* We initiated the wide data transfer negociation,
|
* and have successfully received a response from the
|
* and have successfully received a response from the
|
* target. The synchronous transfer agreement has been
|
* target. The synchronous transfer agreement has been
|
* reached. Note: if the values returned are out of our
|
* reached. Note: if the values returned are out of our
|
* bounds, we must reject the message.
|
* bounds, we must reject the message.
|
*/
|
*/
|
case neg_inprogress:
|
case neg_inprogress:
|
res = reject;
|
res = reject;
|
if (msg[3] <= info->ifcfg.wide_max_size) {
|
if (msg[3] <= info->ifcfg.wide_max_size) {
|
dev->wide_state = neg_complete;
|
dev->wide_state = neg_complete;
|
res = wide;
|
res = wide;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
#else
|
#else
|
res = reject;
|
res = reject;
|
#endif
|
#endif
|
|
|
switch (res) {
|
switch (res) {
|
case wide:
|
case wide:
|
dev->wide_xfer = msg[3];
|
dev->wide_xfer = msg[3];
|
break;
|
break;
|
|
|
case reject:
|
case reject:
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
|
|
case bit8:
|
case bit8:
|
dev->wide_xfer = 0;
|
dev->wide_xfer = 0;
|
break;
|
break;
|
|
|
case none:
|
case none:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
|
/* Function: void fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
|
* Purpose : update data pointers after transfer suspended/paused
|
* Purpose : update data pointers after transfer suspended/paused
|
* Params : info - interface's local pointer to update
|
* Params : info - interface's local pointer to update
|
* bytes_transferred - number of bytes transferred
|
* bytes_transferred - number of bytes transferred
|
*/
|
*/
|
static void
|
static void
|
fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
|
fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
|
{
|
{
|
unsigned char *ptr;
|
unsigned char *ptr;
|
unsigned int residual;
|
unsigned int residual;
|
|
|
fas216_checkmagic(info, "fas216_updateptrs");
|
fas216_checkmagic(info, "fas216_updateptrs");
|
|
|
ptr = info->scsi.SCp.ptr;
|
ptr = info->scsi.SCp.ptr;
|
residual = info->scsi.SCp.this_residual;
|
residual = info->scsi.SCp.this_residual;
|
|
|
info->SCpnt->request_bufflen -= bytes_transferred;
|
info->SCpnt->request_bufflen -= bytes_transferred;
|
|
|
while (residual <= bytes_transferred && bytes_transferred) {
|
while (residual <= bytes_transferred && bytes_transferred) {
|
/* We have used up this buffer */
|
/* We have used up this buffer */
|
bytes_transferred -= residual;
|
bytes_transferred -= residual;
|
if (info->scsi.SCp.buffers_residual) {
|
if (info->scsi.SCp.buffers_residual) {
|
info->scsi.SCp.buffer++;
|
info->scsi.SCp.buffer++;
|
info->scsi.SCp.buffers_residual--;
|
info->scsi.SCp.buffers_residual--;
|
ptr = (unsigned char *)info->scsi.SCp.buffer->address;
|
ptr = (unsigned char *)info->scsi.SCp.buffer->address;
|
residual = info->scsi.SCp.buffer->length;
|
residual = info->scsi.SCp.buffer->length;
|
} else {
|
} else {
|
ptr = NULL;
|
ptr = NULL;
|
residual = 0;
|
residual = 0;
|
}
|
}
|
}
|
}
|
|
|
residual -= bytes_transferred;
|
residual -= bytes_transferred;
|
ptr += bytes_transferred;
|
ptr += bytes_transferred;
|
|
|
if (residual == 0)
|
if (residual == 0)
|
ptr = NULL;
|
ptr = NULL;
|
|
|
info->scsi.SCp.ptr = ptr;
|
info->scsi.SCp.ptr = ptr;
|
info->scsi.SCp.this_residual = residual;
|
info->scsi.SCp.this_residual = residual;
|
}
|
}
|
|
|
/* Function: void fas216_pio(FAS216_Info *info, fasdmadir_t direction)
|
/* Function: void fas216_pio(FAS216_Info *info, fasdmadir_t direction)
|
* Purpose : transfer data off of/on to card using programmed IO
|
* Purpose : transfer data off of/on to card using programmed IO
|
* Params : info - interface to transfer data to/from
|
* Params : info - interface to transfer data to/from
|
* direction - direction to transfer data (DMA_OUT/DMA_IN)
|
* direction - direction to transfer data (DMA_OUT/DMA_IN)
|
* Notes : this is incredibly slow
|
* Notes : this is incredibly slow
|
*/
|
*/
|
static void
|
static void
|
fas216_pio(FAS216_Info *info, fasdmadir_t direction)
|
fas216_pio(FAS216_Info *info, fasdmadir_t direction)
|
{
|
{
|
unsigned int residual;
|
unsigned int residual;
|
char *ptr;
|
char *ptr;
|
int correction;
|
int correction;
|
|
|
fas216_checkmagic(info, "fas216_pio");
|
fas216_checkmagic(info, "fas216_pio");
|
|
|
residual = info->scsi.SCp.this_residual;
|
residual = info->scsi.SCp.this_residual;
|
ptr = info->scsi.SCp.ptr;
|
ptr = info->scsi.SCp.ptr;
|
|
|
if (direction == DMA_OUT) {
|
if (direction == DMA_OUT) {
|
// while (residual > 0) {
|
// while (residual > 0) {
|
// if ((inb(REG_CFIS(info)) & CFIS_CF) < 8) {
|
// if ((inb(REG_CFIS(info)) & CFIS_CF) < 8) {
|
outb(*ptr++, REG_FF(info));
|
outb(*ptr++, REG_FF(info));
|
residual -= 1;
|
residual -= 1;
|
// }
|
// }
|
// if (inb(REG_STAT(info)) & STAT_INT)
|
// if (inb(REG_STAT(info)) & STAT_INT)
|
// break;
|
// break;
|
// }
|
// }
|
// correction = inb(REG_CFIS(info)) & CFIS_CF;
|
// correction = inb(REG_CFIS(info)) & CFIS_CF;
|
correction = 0;
|
correction = 0;
|
} else {
|
} else {
|
// while (residual > 0) {
|
// while (residual > 0) {
|
// if ((inb(REG_CFIS(info)) & CFIS_CF) != 0) {
|
// if ((inb(REG_CFIS(info)) & CFIS_CF) != 0) {
|
*ptr++ = inb(REG_FF(info));
|
*ptr++ = inb(REG_FF(info));
|
residual -= 1;
|
residual -= 1;
|
// }
|
// }
|
// if (inb(REG_STAT(info)) & STAT_INT)
|
// if (inb(REG_STAT(info)) & STAT_INT)
|
// break;
|
// break;
|
// }
|
// }
|
correction = 0;
|
correction = 0;
|
}
|
}
|
|
|
ptr -= correction;
|
ptr -= correction;
|
residual += correction;
|
residual += correction;
|
|
|
if (residual == 0) {
|
if (residual == 0) {
|
if (info->scsi.SCp.buffers_residual) {
|
if (info->scsi.SCp.buffers_residual) {
|
info->scsi.SCp.buffer++;
|
info->scsi.SCp.buffer++;
|
info->scsi.SCp.buffers_residual--;
|
info->scsi.SCp.buffers_residual--;
|
ptr = (unsigned char *)info->scsi.SCp.buffer->address;
|
ptr = (unsigned char *)info->scsi.SCp.buffer->address;
|
residual = info->scsi.SCp.buffer->length;
|
residual = info->scsi.SCp.buffer->length;
|
} else {
|
} else {
|
ptr = NULL;
|
ptr = NULL;
|
residual = 0;
|
residual = 0;
|
}
|
}
|
}
|
}
|
|
|
info->scsi.SCp.ptr = ptr;
|
info->scsi.SCp.ptr = ptr;
|
info->scsi.SCp.this_residual = residual;
|
info->scsi.SCp.this_residual = residual;
|
}
|
}
|
|
|
/* Function: void fas216_starttransfer(FAS216_Info *info,
|
/* Function: void fas216_starttransfer(FAS216_Info *info,
|
* fasdmadir_t direction)
|
* fasdmadir_t direction)
|
* Purpose : Start a DMA/PIO transfer off of/on to card
|
* Purpose : Start a DMA/PIO transfer off of/on to card
|
* Params : info - interface from which device disconnected from
|
* Params : info - interface from which device disconnected from
|
* direction - transfer direction (DMA_OUT/DMA_IN)
|
* direction - transfer direction (DMA_OUT/DMA_IN)
|
*/
|
*/
|
static void
|
static void
|
fas216_starttransfer(FAS216_Info *info, fasdmadir_t direction, int flush_fifo)
|
fas216_starttransfer(FAS216_Info *info, fasdmadir_t direction, int flush_fifo)
|
{
|
{
|
fasdmatype_t dmatype;
|
fasdmatype_t dmatype;
|
|
|
fas216_checkmagic(info, "fas216_starttransfer");
|
fas216_checkmagic(info, "fas216_starttransfer");
|
|
|
info->scsi.phase = (direction == DMA_OUT) ?
|
info->scsi.phase = (direction == DMA_OUT) ?
|
PHASE_DATAOUT : PHASE_DATAIN;
|
PHASE_DATAOUT : PHASE_DATAIN;
|
|
|
if (info->dma.transfer_type != fasdma_none &&
|
if (info->dma.transfer_type != fasdma_none &&
|
info->dma.transfer_type != fasdma_pio) {
|
info->dma.transfer_type != fasdma_pio) {
|
unsigned long total, residual;
|
unsigned long total, residual;
|
|
|
if (info->dma.transfer_type == fasdma_real_all)
|
if (info->dma.transfer_type == fasdma_real_all)
|
total = info->SCpnt->request_bufflen;
|
total = info->SCpnt->request_bufflen;
|
else
|
else
|
total = info->scsi.SCp.this_residual;
|
total = info->scsi.SCp.this_residual;
|
|
|
residual = (inb(REG_CFIS(info)) & CFIS_CF) +
|
residual = (inb(REG_CFIS(info)) & CFIS_CF) +
|
inb(REG_CTCL(info)) +
|
inb(REG_CTCL(info)) +
|
(inb(REG_CTCM(info)) << 8) +
|
(inb(REG_CTCM(info)) << 8) +
|
(inb(REG_CTCH(info)) << 16);
|
(inb(REG_CTCH(info)) << 16);
|
fas216_updateptrs(info, total - residual);
|
fas216_updateptrs(info, total - residual);
|
}
|
}
|
info->dma.transfer_type = fasdma_none;
|
info->dma.transfer_type = fasdma_none;
|
|
|
if (!info->scsi.SCp.ptr) {
|
if (!info->scsi.SCp.ptr) {
|
printk("scsi%d.%c: null buffer passed to "
|
printk("scsi%d.%c: null buffer passed to "
|
"fas216_starttransfer\n", info->host->host_no,
|
"fas216_starttransfer\n", info->host->host_no,
|
fas216_target(info));
|
fas216_target(info));
|
return;
|
return;
|
}
|
}
|
|
|
/* flush FIFO */
|
/* flush FIFO */
|
if (flush_fifo)
|
if (flush_fifo)
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
|
|
/*
|
/*
|
* Default to PIO mode or DMA mode if we have a synchronous
|
* Default to PIO mode or DMA mode if we have a synchronous
|
* transfer agreement.
|
* transfer agreement.
|
*/
|
*/
|
if (info->device[info->SCpnt->target].sof && info->dma.setup)
|
if (info->device[info->SCpnt->target].sof && info->dma.setup)
|
dmatype = fasdma_real_all;
|
dmatype = fasdma_real_all;
|
else
|
else
|
dmatype = fasdma_pio;
|
dmatype = fasdma_pio;
|
|
|
if (info->dma.setup)
|
if (info->dma.setup)
|
dmatype = info->dma.setup(info->host, &info->scsi.SCp,
|
dmatype = info->dma.setup(info->host, &info->scsi.SCp,
|
direction, dmatype);
|
direction, dmatype);
|
info->dma.transfer_type = dmatype;
|
info->dma.transfer_type = dmatype;
|
|
|
switch (dmatype) {
|
switch (dmatype) {
|
case fasdma_pio:
|
case fasdma_pio:
|
outb(0, REG_SOF(info));
|
outb(0, REG_SOF(info));
|
outb(info->scsi.async_stp, REG_STP(info));
|
outb(info->scsi.async_stp, REG_STP(info));
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(CMD_NOP | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_NOP | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
fas216_pio(info, direction);
|
fas216_pio(info, direction);
|
break;
|
break;
|
|
|
case fasdma_pseudo:
|
case fasdma_pseudo:
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
info->dma.pseudo(info->host, &info->scsi.SCp,
|
info->dma.pseudo(info->host, &info->scsi.SCp,
|
direction, info->SCpnt->transfersize);
|
direction, info->SCpnt->transfersize);
|
break;
|
break;
|
|
|
case fasdma_real_block:
|
case fasdma_real_block:
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual, REG_STCL(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 8, REG_STCM(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(info->scsi.SCp.this_residual >> 16, REG_STCH(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
break;
|
break;
|
|
|
case fasdma_real_all:
|
case fasdma_real_all:
|
outb(info->SCpnt->request_bufflen, REG_STCL(info));
|
outb(info->SCpnt->request_bufflen, REG_STCL(info));
|
outb(info->SCpnt->request_bufflen >> 8, REG_STCM(info));
|
outb(info->SCpnt->request_bufflen >> 8, REG_STCM(info));
|
outb(info->SCpnt->request_bufflen >> 16, REG_STCH(info));
|
outb(info->SCpnt->request_bufflen >> 16, REG_STCH(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_TRANSFERINFO | CMD_WITHDMA, REG_CMD(info));
|
break;
|
break;
|
|
|
default:
|
default:
|
printk(KERN_ERR "scsi%d.%d: invalid FAS216 DMA type\n",
|
printk(KERN_ERR "scsi%d.%d: invalid FAS216 DMA type\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_stoptransfer(FAS216_Info *info)
|
/* Function: void fas216_stoptransfer(FAS216_Info *info)
|
* Purpose : Stop a DMA transfer onto / off of the card
|
* Purpose : Stop a DMA transfer onto / off of the card
|
* Params : info - interface from which device disconnected from
|
* Params : info - interface from which device disconnected from
|
*/
|
*/
|
static void
|
static void
|
fas216_stoptransfer(FAS216_Info *info)
|
fas216_stoptransfer(FAS216_Info *info)
|
{
|
{
|
fas216_checkmagic(info, "fas216_stoptransfer");
|
fas216_checkmagic(info, "fas216_stoptransfer");
|
|
|
if (info->dma.transfer_type != fasdma_none &&
|
if (info->dma.transfer_type != fasdma_none &&
|
info->dma.transfer_type != fasdma_pio) {
|
info->dma.transfer_type != fasdma_pio) {
|
unsigned long total, residual;
|
unsigned long total, residual;
|
|
|
if ((info->dma.transfer_type == fasdma_real_all ||
|
if ((info->dma.transfer_type == fasdma_real_all ||
|
info->dma.transfer_type == fasdma_real_block) &&
|
info->dma.transfer_type == fasdma_real_block) &&
|
info->dma.stop)
|
info->dma.stop)
|
info->dma.stop(info->host, &info->scsi.SCp);
|
info->dma.stop(info->host, &info->scsi.SCp);
|
|
|
if (info->dma.transfer_type == fasdma_real_all)
|
if (info->dma.transfer_type == fasdma_real_all)
|
total = info->SCpnt->request_bufflen;
|
total = info->SCpnt->request_bufflen;
|
else
|
else
|
total = info->scsi.SCp.this_residual;
|
total = info->scsi.SCp.this_residual;
|
|
|
residual = (inb(REG_CFIS(info)) & CFIS_CF) +
|
residual = (inb(REG_CFIS(info)) & CFIS_CF) +
|
inb(REG_CTCL(info)) +
|
inb(REG_CTCL(info)) +
|
(inb(REG_CTCM(info)) << 8) +
|
(inb(REG_CTCM(info)) << 8) +
|
(inb(REG_CTCH(info)) << 16);
|
(inb(REG_CTCH(info)) << 16);
|
if (residual > total) {
|
if (residual > total) {
|
printk("stopxfer: total=%ld, residual=%ld\n", total, residual);
|
printk("stopxfer: total=%ld, residual=%ld\n", total, residual);
|
fas216_dumpstate(info);
|
fas216_dumpstate(info);
|
fas216_dumpinfo(info);
|
fas216_dumpinfo(info);
|
residual = total;
|
residual = total;
|
}
|
}
|
fas216_updateptrs(info, total - residual);
|
fas216_updateptrs(info, total - residual);
|
info->dma.transfer_type = fasdma_none;
|
info->dma.transfer_type = fasdma_none;
|
}
|
}
|
if (info->scsi.phase == PHASE_DATAOUT)
|
if (info->scsi.phase == PHASE_DATAOUT)
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
}
|
}
|
|
|
/* Function: void fas216_disconnected_intr(FAS216_Info *info)
|
/* Function: void fas216_disconnected_intr(FAS216_Info *info)
|
* Purpose : handle device disconnection
|
* Purpose : handle device disconnection
|
* Params : info - interface from which device disconnected from
|
* Params : info - interface from which device disconnected from
|
*/
|
*/
|
static void
|
static void
|
fas216_disconnect_intr(FAS216_Info *info)
|
fas216_disconnect_intr(FAS216_Info *info)
|
{
|
{
|
fas216_checkmagic(info, "fas216_disconnected_intr");
|
fas216_checkmagic(info, "fas216_disconnected_intr");
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: disconnect phase=%02X\n", info->host->host_no,
|
printk("scsi%d.%c: disconnect phase=%02X\n", info->host->host_no,
|
fas216_target(info), info->scsi.phase);
|
fas216_target(info), info->scsi.phase);
|
#endif
|
#endif
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
|
|
switch (info->scsi.phase) {
|
switch (info->scsi.phase) {
|
case PHASE_SELECTION: /* while selecting - no target */
|
case PHASE_SELECTION: /* while selecting - no target */
|
case PHASE_SELSTEPS:
|
case PHASE_SELSTEPS:
|
fas216_done(info, DID_NO_CONNECT);
|
fas216_done(info, DID_NO_CONNECT);
|
break;
|
break;
|
|
|
case PHASE_MSGIN_DISCONNECT: /* message in - disconnecting */
|
case PHASE_MSGIN_DISCONNECT: /* message in - disconnecting */
|
outb(CMD_ENABLESEL, REG_CMD(info));
|
outb(CMD_ENABLESEL, REG_CMD(info));
|
info->scsi.disconnectable = 1;
|
info->scsi.disconnectable = 1;
|
info->scsi.reconnected.tag = 0;
|
info->scsi.reconnected.tag = 0;
|
info->scsi.phase = PHASE_IDLE;
|
info->scsi.phase = PHASE_IDLE;
|
info->stats.disconnects += 1;
|
info->stats.disconnects += 1;
|
break;
|
break;
|
|
|
case PHASE_DONE: /* at end of command - complete */
|
case PHASE_DONE: /* at end of command - complete */
|
fas216_done(info, DID_OK);
|
fas216_done(info, DID_OK);
|
break;
|
break;
|
|
|
case PHASE_MSGOUT: /* message out - possible ABORT message */
|
case PHASE_MSGOUT: /* message out - possible ABORT message */
|
if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) {
|
if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) {
|
info->scsi.aborting = 0;
|
info->scsi.aborting = 0;
|
fas216_done(info, DID_ABORT);
|
fas216_done(info, DID_ABORT);
|
break;
|
break;
|
}
|
}
|
|
|
default: /* huh? */
|
default: /* huh? */
|
printk(KERN_ERR "scsi%d.%c: unexpected disconnect in phase %s\n",
|
printk(KERN_ERR "scsi%d.%c: unexpected disconnect in phase %s\n",
|
info->host->host_no, fas216_target(info), fas216_drv_phase(info));
|
info->host->host_no, fas216_target(info), fas216_drv_phase(info));
|
print_debug_list();
|
print_debug_list();
|
fas216_stoptransfer(info);
|
fas216_stoptransfer(info);
|
fas216_done(info, DID_ERROR);
|
fas216_done(info, DID_ERROR);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_reselected_intr(FAS216_Info *info)
|
/* Function: void fas216_reselected_intr(FAS216_Info *info)
|
* Purpose : Start reconnection of a device
|
* Purpose : Start reconnection of a device
|
* Params : info - interface which was reselected
|
* Params : info - interface which was reselected
|
*/
|
*/
|
static void
|
static void
|
fas216_reselected_intr(FAS216_Info *info)
|
fas216_reselected_intr(FAS216_Info *info)
|
{
|
{
|
unsigned char target, identify_msg, ok;
|
unsigned char target, identify_msg, ok;
|
|
|
fas216_checkmagic(info, "fas216_reselected_intr");
|
fas216_checkmagic(info, "fas216_reselected_intr");
|
|
|
if ((info->scsi.phase == PHASE_SELECTION ||
|
if ((info->scsi.phase == PHASE_SELECTION ||
|
info->scsi.phase == PHASE_SELSTEPS) && info->SCpnt) {
|
info->scsi.phase == PHASE_SELSTEPS) && info->SCpnt) {
|
Scsi_Cmnd *SCpnt = info->SCpnt;
|
Scsi_Cmnd *SCpnt = info->SCpnt;
|
|
|
info->origSCpnt = SCpnt;
|
info->origSCpnt = SCpnt;
|
info->SCpnt = NULL;
|
info->SCpnt = NULL;
|
|
|
if (info->device[SCpnt->target].wide_state == neg_inprogress)
|
if (info->device[SCpnt->target].wide_state == neg_inprogress)
|
info->device[SCpnt->target].wide_state = neg_wait;
|
info->device[SCpnt->target].wide_state = neg_wait;
|
if (info->device[SCpnt->target].sync_state == neg_inprogress)
|
if (info->device[SCpnt->target].sync_state == neg_inprogress)
|
info->device[SCpnt->target].sync_state = neg_wait;
|
info->device[SCpnt->target].sync_state = neg_wait;
|
}
|
}
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: reconnect phase=%02X\n", info->host->host_no,
|
printk("scsi%d.%c: reconnect phase=%02X\n", info->host->host_no,
|
fas216_target(info), info->scsi.phase);
|
fas216_target(info), info->scsi.phase);
|
#endif
|
#endif
|
|
|
if ((inb(REG_CFIS(info)) & CFIS_CF) != 2) {
|
if ((inb(REG_CFIS(info)) & CFIS_CF) != 2) {
|
printk(KERN_ERR "scsi%d.H: incorrect number of bytes after reselect\n",
|
printk(KERN_ERR "scsi%d.H: incorrect number of bytes after reselect\n",
|
info->host->host_no);
|
info->host->host_no);
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
return;
|
return;
|
}
|
}
|
|
|
target = inb(REG_FF(info));
|
target = inb(REG_FF(info));
|
identify_msg = inb(REG_FF(info));
|
identify_msg = inb(REG_FF(info));
|
|
|
ok = 1;
|
ok = 1;
|
if (!(target & (1 << info->host->this_id))) {
|
if (!(target & (1 << info->host->this_id))) {
|
printk(KERN_ERR "scsi%d.H: invalid host id on reselect\n", info->host->host_no);
|
printk(KERN_ERR "scsi%d.H: invalid host id on reselect\n", info->host->host_no);
|
ok = 0;
|
ok = 0;
|
}
|
}
|
|
|
if (!(identify_msg & 0x80)) {
|
if (!(identify_msg & 0x80)) {
|
printk(KERN_ERR "scsi%d.H: no IDENTIFY message on reselect, got msg %02X\n",
|
printk(KERN_ERR "scsi%d.H: no IDENTIFY message on reselect, got msg %02X\n",
|
info->host->host_no, identify_msg);
|
info->host->host_no, identify_msg);
|
ok = 0;
|
ok = 0;
|
}
|
}
|
|
|
if (!ok) {
|
if (!ok) {
|
/*
|
/*
|
* Something went wrong - send an initiator error to
|
* Something went wrong - send an initiator error to
|
* the target.
|
* the target.
|
*/
|
*/
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
return;
|
return;
|
}
|
}
|
|
|
target &= ~(1 << info->host->this_id);
|
target &= ~(1 << info->host->this_id);
|
switch (target) {
|
switch (target) {
|
case 1: target = 0; break;
|
case 1: target = 0; break;
|
case 2: target = 1; break;
|
case 2: target = 1; break;
|
case 4: target = 2; break;
|
case 4: target = 2; break;
|
case 8: target = 3; break;
|
case 8: target = 3; break;
|
case 16: target = 4; break;
|
case 16: target = 4; break;
|
case 32: target = 5; break;
|
case 32: target = 5; break;
|
case 64: target = 6; break;
|
case 64: target = 6; break;
|
case 128: target = 7; break;
|
case 128: target = 7; break;
|
default: target = info->host->this_id; break;
|
default: target = info->host->this_id; break;
|
}
|
}
|
|
|
identify_msg &= 7;
|
identify_msg &= 7;
|
info->scsi.reconnected.target = target;
|
info->scsi.reconnected.target = target;
|
info->scsi.reconnected.lun = identify_msg;
|
info->scsi.reconnected.lun = identify_msg;
|
info->scsi.reconnected.tag = 0;
|
info->scsi.reconnected.tag = 0;
|
|
|
ok = 0;
|
ok = 0;
|
if (info->scsi.disconnectable && info->SCpnt &&
|
if (info->scsi.disconnectable && info->SCpnt &&
|
info->SCpnt->target == target && info->SCpnt->lun == identify_msg)
|
info->SCpnt->target == target && info->SCpnt->lun == identify_msg)
|
ok = 1;
|
ok = 1;
|
|
|
if (!ok && queue_probetgtlun(&info->queues.disconnected, target, identify_msg))
|
if (!ok && queue_probetgtlun(&info->queues.disconnected, target, identify_msg))
|
ok = 1;
|
ok = 1;
|
|
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
if (ok) {
|
if (ok) {
|
info->scsi.phase = PHASE_RECONNECTED;
|
info->scsi.phase = PHASE_RECONNECTED;
|
outb(target, REG_SDID(info));
|
outb(target, REG_SDID(info));
|
} else {
|
} else {
|
/*
|
/*
|
* Our command structure not found - abort the
|
* Our command structure not found - abort the
|
* command on the target. Since we have no
|
* command on the target. Since we have no
|
* record of this command, we can't send
|
* record of this command, we can't send
|
* an INITIATOR DETECTED ERROR message.
|
* an INITIATOR DETECTED ERROR message.
|
*/
|
*/
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
|
msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
}
|
}
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
}
|
}
|
|
|
/* Function: void fas216_finish_reconnect(FAS216_Info *info)
|
/* Function: void fas216_finish_reconnect(FAS216_Info *info)
|
* Purpose : finish reconnection sequence for device
|
* Purpose : finish reconnection sequence for device
|
* Params : info - interface which caused function done interrupt
|
* Params : info - interface which caused function done interrupt
|
*/
|
*/
|
static void
|
static void
|
fas216_finish_reconnect(FAS216_Info *info)
|
fas216_finish_reconnect(FAS216_Info *info)
|
{
|
{
|
fas216_checkmagic(info, "fas216_reconnect");
|
fas216_checkmagic(info, "fas216_reconnect");
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("Connected: %1X %1X %02X, reconnected: %1X %1X %02X\n",
|
printk("Connected: %1X %1X %02X, reconnected: %1X %1X %02X\n",
|
info->SCpnt->target, info->SCpnt->lun, info->SCpnt->tag,
|
info->SCpnt->target, info->SCpnt->lun, info->SCpnt->tag,
|
info->scsi.reconnected.target, info->scsi.reconnected.lun,
|
info->scsi.reconnected.target, info->scsi.reconnected.lun,
|
info->scsi.reconnected.tag);
|
info->scsi.reconnected.tag);
|
#endif
|
#endif
|
|
|
if (info->scsi.disconnectable && info->SCpnt) {
|
if (info->scsi.disconnectable && info->SCpnt) {
|
info->scsi.disconnectable = 0;
|
info->scsi.disconnectable = 0;
|
if (info->SCpnt->target == info->scsi.reconnected.target &&
|
if (info->SCpnt->target == info->scsi.reconnected.target &&
|
info->SCpnt->lun == info->scsi.reconnected.lun &&
|
info->SCpnt->lun == info->scsi.reconnected.lun &&
|
info->SCpnt->tag == info->scsi.reconnected.tag) {
|
info->SCpnt->tag == info->scsi.reconnected.tag) {
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: reconnected",
|
printk("scsi%d.%c: reconnected",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
#endif
|
#endif
|
} else {
|
} else {
|
queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
|
queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: had to move command to disconnected queue\n",
|
printk("scsi%d.%c: had to move command to disconnected queue\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
#endif
|
#endif
|
info->SCpnt = NULL;
|
info->SCpnt = NULL;
|
}
|
}
|
}
|
}
|
if (!info->SCpnt) {
|
if (!info->SCpnt) {
|
info->SCpnt = queue_remove_tgtluntag(&info->queues.disconnected,
|
info->SCpnt = queue_remove_tgtluntag(&info->queues.disconnected,
|
info->scsi.reconnected.target,
|
info->scsi.reconnected.target,
|
info->scsi.reconnected.lun,
|
info->scsi.reconnected.lun,
|
info->scsi.reconnected.tag);
|
info->scsi.reconnected.tag);
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: had to get command",
|
printk("scsi%d.%c: had to get command",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
#endif
|
#endif
|
}
|
}
|
if (!info->SCpnt) {
|
if (!info->SCpnt) {
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
#if 0
|
#if 0
|
if (info->scsi.reconnected.tag)
|
if (info->scsi.reconnected.tag)
|
msgqueue_addmsg(&info->scsi.msgs, 2, ABORT_TAG, info->scsi.reconnected.tag);
|
msgqueue_addmsg(&info->scsi.msgs, 2, ABORT_TAG, info->scsi.reconnected.tag);
|
else
|
else
|
#endif
|
#endif
|
msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
|
msgqueue_addmsg(&info->scsi.msgs, 1, ABORT);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.aborting = 1;
|
info->scsi.aborting = 1;
|
} else {
|
} else {
|
/*
|
/*
|
* Restore data pointer from SAVED data pointer
|
* Restore data pointer from SAVED data pointer
|
*/
|
*/
|
info->scsi.SCp = info->SCpnt->SCp;
|
info->scsi.SCp = info->SCpnt->SCp;
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk(", data pointers: [%p, %X]",
|
printk(", data pointers: [%p, %X]",
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
#endif
|
#endif
|
}
|
}
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("\n");
|
printk("\n");
|
#endif
|
#endif
|
}
|
}
|
|
|
static unsigned char fas216_get_msg_byte(FAS216_Info *info)
|
static unsigned char fas216_get_msg_byte(FAS216_Info *info)
|
{
|
{
|
int tout;
|
int tout;
|
|
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
for (tout = 1000000; tout; tout --)
|
for (tout = 1000000; tout; tout --)
|
if (inb(REG_STAT(info)) & STAT_INT)
|
if (inb(REG_STAT(info)) & STAT_INT)
|
break;
|
break;
|
|
|
inb(REG_INST(info));
|
inb(REG_INST(info));
|
|
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
|
|
for (tout = 1000000; tout; tout --)
|
for (tout = 1000000; tout; tout --)
|
if (inb(REG_STAT(info)) & STAT_INT)
|
if (inb(REG_STAT(info)) & STAT_INT)
|
break;
|
break;
|
|
|
inb(REG_INST(info));
|
inb(REG_INST(info));
|
|
|
return inb(REG_FF(info));
|
return inb(REG_FF(info));
|
}
|
}
|
|
|
/* Function: void fas216_message(FAS216_Info *info)
|
/* Function: void fas216_message(FAS216_Info *info)
|
* Purpose : handle a function done interrupt from FAS216 chip
|
* Purpose : handle a function done interrupt from FAS216 chip
|
* Params : info - interface which caused function done interrupt
|
* Params : info - interface which caused function done interrupt
|
*/
|
*/
|
static void fas216_message(FAS216_Info *info)
|
static void fas216_message(FAS216_Info *info)
|
{
|
{
|
unsigned char message[16];
|
unsigned char message[16];
|
unsigned int msglen = 1;
|
unsigned int msglen = 1;
|
|
|
fas216_checkmagic(info, "fas216_message");
|
fas216_checkmagic(info, "fas216_message");
|
|
|
message[0] = inb(REG_FF(info));
|
message[0] = inb(REG_FF(info));
|
|
|
if (message[0] == EXTENDED_MESSAGE) {
|
if (message[0] == EXTENDED_MESSAGE) {
|
message[1] = fas216_get_msg_byte(info);
|
message[1] = fas216_get_msg_byte(info);
|
|
|
for (msglen = 2; msglen < message[1] + 2; msglen++)
|
for (msglen = 2; msglen < message[1] + 2; msglen++)
|
message[msglen] = fas216_get_msg_byte(info);
|
message[msglen] = fas216_get_msg_byte(info);
|
}
|
}
|
|
|
#ifdef DEBUG_MESSAGES
|
#ifdef DEBUG_MESSAGES
|
{
|
{
|
int i;
|
int i;
|
|
|
printk("scsi%d.%c: message in: ",
|
printk("scsi%d.%c: message in: ",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
for (i = 0; i < msglen; i++)
|
for (i = 0; i < msglen; i++)
|
printk("%02X ", message[i]);
|
printk("%02X ", message[i]);
|
printk("\n");
|
printk("\n");
|
}
|
}
|
#endif
|
#endif
|
|
|
if (info->scsi.phase == PHASE_RECONNECTED) {
|
if (info->scsi.phase == PHASE_RECONNECTED) {
|
if (message[0] == SIMPLE_QUEUE_TAG)
|
if (message[0] == SIMPLE_QUEUE_TAG)
|
info->scsi.reconnected.tag = message[1];
|
info->scsi.reconnected.tag = message[1];
|
fas216_finish_reconnect(info);
|
fas216_finish_reconnect(info);
|
info->scsi.phase = PHASE_MSGIN;
|
info->scsi.phase = PHASE_MSGIN;
|
}
|
}
|
|
|
switch (message[0]) {
|
switch (message[0]) {
|
case COMMAND_COMPLETE:
|
case COMMAND_COMPLETE:
|
printk(KERN_ERR "scsi%d.%c: command complete with no "
|
printk(KERN_ERR "scsi%d.%c: command complete with no "
|
"status in MESSAGE_IN?\n",
|
"status in MESSAGE_IN?\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
break;
|
break;
|
|
|
case SAVE_POINTERS:
|
case SAVE_POINTERS:
|
/*
|
/*
|
* Save current data pointer to SAVED data pointer
|
* Save current data pointer to SAVED data pointer
|
* SCSI II standard says that we must not acknowledge
|
* SCSI II standard says that we must not acknowledge
|
* this until we have really saved pointers.
|
* this until we have really saved pointers.
|
* NOTE: we DO NOT save the command nor status pointers
|
* NOTE: we DO NOT save the command nor status pointers
|
* as required by the SCSI II standard. These always
|
* as required by the SCSI II standard. These always
|
* point to the start of their respective areas.
|
* point to the start of their respective areas.
|
*/
|
*/
|
info->SCpnt->SCp = info->scsi.SCp;
|
info->SCpnt->SCp = info->scsi.SCp;
|
info->SCpnt->SCp.sent_command = 0;
|
info->SCpnt->SCp.sent_command = 0;
|
#if defined (DEBUG_MESSAGES) || defined (DEBUG_CONNECT)
|
#if defined (DEBUG_MESSAGES) || defined (DEBUG_CONNECT)
|
printk("scsi%d.%c: save data pointers: [%p, %X]\n",
|
printk("scsi%d.%c: save data pointers: [%p, %X]\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
#endif
|
#endif
|
break;
|
break;
|
|
|
case RESTORE_POINTERS:
|
case RESTORE_POINTERS:
|
/*
|
/*
|
* Restore current data pointer from SAVED data pointer
|
* Restore current data pointer from SAVED data pointer
|
*/
|
*/
|
info->scsi.SCp = info->SCpnt->SCp;
|
info->scsi.SCp = info->SCpnt->SCp;
|
#if defined (DEBUG_MESSAGES) || defined (DEBUG_CONNECT)
|
#if defined (DEBUG_MESSAGES) || defined (DEBUG_CONNECT)
|
printk("scsi%d.%c: restore data pointers: [%p, %X]\n",
|
printk("scsi%d.%c: restore data pointers: [%p, %X]\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
#endif
|
#endif
|
break;
|
break;
|
|
|
case DISCONNECT:
|
case DISCONNECT:
|
info->scsi.phase = PHASE_MSGIN_DISCONNECT;
|
info->scsi.phase = PHASE_MSGIN_DISCONNECT;
|
break;
|
break;
|
|
|
case MESSAGE_REJECT:
|
case MESSAGE_REJECT:
|
printk("scsi%d.%c: message reject at %02X (%X)\n", info->host->host_no, fas216_target(info), info->scsi.msgin_fifo,
|
printk("scsi%d.%c: message reject at %02X (%X)\n", info->host->host_no, fas216_target(info), info->scsi.msgin_fifo,
|
fas216_get_last_msg(info, info->scsi.msgin_fifo));
|
fas216_get_last_msg(info, info->scsi.msgin_fifo));
|
switch(fas216_get_last_msg(info, info->scsi.msgin_fifo)) {
|
switch(fas216_get_last_msg(info, info->scsi.msgin_fifo)) {
|
case EXTENDED_MESSAGE | EXTENDED_SDTR << 8:
|
case EXTENDED_MESSAGE | EXTENDED_SDTR << 8:
|
fas216_handlesync(info, message);
|
fas216_handlesync(info, message);
|
break;
|
break;
|
|
|
case EXTENDED_MESSAGE | EXTENDED_WDTR << 8:
|
case EXTENDED_MESSAGE | EXTENDED_WDTR << 8:
|
fas216_handlewide(info, message);
|
fas216_handlewide(info, message);
|
break;
|
break;
|
|
|
default:
|
default:
|
printk("scsi%d.%c: reject, last message %04X\n",
|
printk("scsi%d.%c: reject, last message %04X\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
fas216_get_last_msg(info, info->scsi.msgin_fifo));
|
fas216_get_last_msg(info, info->scsi.msgin_fifo));
|
}
|
}
|
break;
|
break;
|
|
|
case NOP:
|
case NOP:
|
break;
|
break;
|
|
|
case SIMPLE_QUEUE_TAG:
|
case SIMPLE_QUEUE_TAG:
|
/* handled above */
|
/* handled above */
|
printk("scsi%d.%c: reconnect queue tag %02X\n",
|
printk("scsi%d.%c: reconnect queue tag %02X\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
message[1]);
|
message[1]);
|
break;
|
break;
|
|
|
case EXTENDED_MESSAGE:
|
case EXTENDED_MESSAGE:
|
switch (message[2]) {
|
switch (message[2]) {
|
case EXTENDED_SDTR: /* Sync transfer negociation request/reply */
|
case EXTENDED_SDTR: /* Sync transfer negociation request/reply */
|
fas216_handlesync(info, message);
|
fas216_handlesync(info, message);
|
break;
|
break;
|
|
|
case EXTENDED_WDTR: /* Wide transfer negociation request/reply */
|
case EXTENDED_WDTR: /* Wide transfer negociation request/reply */
|
fas216_handlewide(info, message);
|
fas216_handlewide(info, message);
|
break;
|
break;
|
|
|
default:
|
default:
|
printk("scsi%d.%c: unrecognised extended message %02X, rejecting\n",
|
printk("scsi%d.%c: unrecognised extended message %02X, rejecting\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
message[2]);
|
message[2]);
|
goto reject_message;
|
goto reject_message;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
printk("scsi%d.%c: unrecognised message %02X, rejecting\n",
|
printk("scsi%d.%c: unrecognised message %02X, rejecting\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
message[0]);
|
message[0]);
|
goto reject_message;
|
goto reject_message;
|
}
|
}
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
return;
|
return;
|
|
|
reject_message:
|
reject_message:
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
msgqueue_addmsg(&info->scsi.msgs, 1, MESSAGE_REJECT);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
}
|
}
|
|
|
/* Function: void fas216_send_command(FAS216_Info *info)
|
/* Function: void fas216_send_command(FAS216_Info *info)
|
* Purpose : send a command to a target after all message bytes have been sent
|
* Purpose : send a command to a target after all message bytes have been sent
|
* Params : info - interface which caused bus service
|
* Params : info - interface which caused bus service
|
*/
|
*/
|
static void fas216_send_command(FAS216_Info *info)
|
static void fas216_send_command(FAS216_Info *info)
|
{
|
{
|
int i;
|
int i;
|
|
|
fas216_checkmagic(info, "fas216_send_command");
|
fas216_checkmagic(info, "fas216_send_command");
|
|
|
outb(CMD_NOP|CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_NOP|CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
|
|
/* load command */
|
/* load command */
|
for (i = info->scsi.SCp.sent_command; i < info->SCpnt->cmd_len; i++)
|
for (i = info->scsi.SCp.sent_command; i < info->SCpnt->cmd_len; i++)
|
outb(info->SCpnt->cmnd[i], REG_FF(info));
|
outb(info->SCpnt->cmnd[i], REG_FF(info));
|
|
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
|
|
info->scsi.phase = PHASE_COMMAND;
|
info->scsi.phase = PHASE_COMMAND;
|
}
|
}
|
|
|
/* Function: void fas216_send_messageout(FAS216_Info *info)
|
/* Function: void fas216_send_messageout(FAS216_Info *info)
|
* Purpose : handle bus service to send a message
|
* Purpose : handle bus service to send a message
|
* Params : info - interface which caused bus service
|
* Params : info - interface which caused bus service
|
* Note : We do not allow the device to change the data direction!
|
* Note : We do not allow the device to change the data direction!
|
*/
|
*/
|
static void fas216_send_messageout(FAS216_Info *info, int start)
|
static void fas216_send_messageout(FAS216_Info *info, int start)
|
{
|
{
|
unsigned int tot_msglen = msgqueue_msglength(&info->scsi.msgs);
|
unsigned int tot_msglen = msgqueue_msglength(&info->scsi.msgs);
|
|
|
fas216_checkmagic(info, "fas216_send_messageout");
|
fas216_checkmagic(info, "fas216_send_messageout");
|
|
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
|
|
if (tot_msglen) {
|
if (tot_msglen) {
|
struct message *msg;
|
struct message *msg;
|
int msgnr = 0;
|
int msgnr = 0;
|
|
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
int i;
|
int i;
|
|
|
for (i = start; i < msg->length; i++)
|
for (i = start; i < msg->length; i++)
|
outb(msg->msg[i], REG_FF(info));
|
outb(msg->msg[i], REG_FF(info));
|
|
|
msg->fifo = tot_msglen - (inb(REG_CFIS(info)) & CFIS_CF);
|
msg->fifo = tot_msglen - (inb(REG_CFIS(info)) & CFIS_CF);
|
start = 0;
|
start = 0;
|
}
|
}
|
} else
|
} else
|
outb(NOP, REG_FF(info));
|
outb(NOP, REG_FF(info));
|
|
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
|
|
info->scsi.phase = PHASE_MSGOUT;
|
info->scsi.phase = PHASE_MSGOUT;
|
}
|
}
|
|
|
/* Function: void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
/* Function: void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
* Purpose : handle a bus service interrupt from FAS216 chip
|
* Purpose : handle a bus service interrupt from FAS216 chip
|
* Params : info - interface which caused bus service interrupt
|
* Params : info - interface which caused bus service interrupt
|
* stat - Status register contents
|
* stat - Status register contents
|
* ssr - SCSI Status register contents
|
* ssr - SCSI Status register contents
|
*/
|
*/
|
static void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
static void fas216_busservice_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
{
|
{
|
fas216_checkmagic(info, "fas216_busservice_intr");
|
fas216_checkmagic(info, "fas216_busservice_intr");
|
|
|
#ifdef DEBUG_BUSSERVICE
|
#ifdef DEBUG_BUSSERVICE
|
printk("scsi%d.%c: bus service: stat=%02X ssr=%02X phase=%02X\n",
|
printk("scsi%d.%c: bus service: stat=%02X ssr=%02X phase=%02X\n",
|
info->host->host_no, fas216_target(info), stat, ssr, info->scsi.phase);
|
info->host->host_no, fas216_target(info), stat, ssr, info->scsi.phase);
|
#endif
|
#endif
|
switch (ssr & IS_BITS) {
|
switch (ssr & IS_BITS) {
|
case IS_MSGBYTESENT: /* select with ATN and stop steps completed */
|
case IS_MSGBYTESENT: /* select with ATN and stop steps completed */
|
case IS_COMPLETE: /* last action completed */
|
case IS_COMPLETE: /* last action completed */
|
outb(CMD_NOP, REG_CMD(info));
|
outb(CMD_NOP, REG_CMD(info));
|
|
|
#define STATE(st,ph) ((ph) << 3 | (st))
|
#define STATE(st,ph) ((ph) << 3 | (st))
|
/* This table describes the legal SCSI state transitions,
|
/* This table describes the legal SCSI state transitions,
|
* as described by the SCSI II spec.
|
* as described by the SCSI II spec.
|
*/
|
*/
|
switch (STATE(stat & STAT_BUSMASK, info->scsi.phase)) {
|
switch (STATE(stat & STAT_BUSMASK, info->scsi.phase)) {
|
/* Reselmsgin -> Data In */
|
/* Reselmsgin -> Data In */
|
case STATE(STAT_DATAIN, PHASE_RECONNECTED):
|
case STATE(STAT_DATAIN, PHASE_RECONNECTED):
|
fas216_finish_reconnect(info);
|
fas216_finish_reconnect(info);
|
case STATE(STAT_DATAIN, PHASE_SELSTEPS):/* Sel w/ steps -> Data In */
|
case STATE(STAT_DATAIN, PHASE_SELSTEPS):/* Sel w/ steps -> Data In */
|
case STATE(STAT_DATAIN, PHASE_DATAIN): /* Data In -> Data In */
|
case STATE(STAT_DATAIN, PHASE_DATAIN): /* Data In -> Data In */
|
case STATE(STAT_DATAIN, PHASE_MSGOUT): /* Message Out -> Data In */
|
case STATE(STAT_DATAIN, PHASE_MSGOUT): /* Message Out -> Data In */
|
case STATE(STAT_DATAIN, PHASE_COMMAND): /* Command -> Data In */
|
case STATE(STAT_DATAIN, PHASE_COMMAND): /* Command -> Data In */
|
case STATE(STAT_DATAIN, PHASE_MSGIN): /* Message In -> Data In */
|
case STATE(STAT_DATAIN, PHASE_MSGIN): /* Message In -> Data In */
|
fas216_starttransfer(info, DMA_IN, 0);
|
fas216_starttransfer(info, DMA_IN, 0);
|
return;
|
return;
|
|
|
case STATE(STAT_DATAOUT, PHASE_DATAOUT):/* Data Out -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_DATAOUT):/* Data Out -> Data Out */
|
fas216_starttransfer(info, DMA_OUT, 0);
|
fas216_starttransfer(info, DMA_OUT, 0);
|
return;
|
return;
|
|
|
/* Reselmsgin -> Data Out */
|
/* Reselmsgin -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_RECONNECTED):
|
case STATE(STAT_DATAOUT, PHASE_RECONNECTED):
|
fas216_finish_reconnect(info);
|
fas216_finish_reconnect(info);
|
case STATE(STAT_DATAOUT, PHASE_SELSTEPS):/* Sel w/ steps-> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_SELSTEPS):/* Sel w/ steps-> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_MSGOUT): /* Message Out -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_MSGOUT): /* Message Out -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_COMMAND):/* Command -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_COMMAND):/* Command -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_MSGIN): /* Message In -> Data Out */
|
case STATE(STAT_DATAOUT, PHASE_MSGIN): /* Message In -> Data Out */
|
fas216_starttransfer(info, DMA_OUT, 1);
|
fas216_starttransfer(info, DMA_OUT, 1);
|
return;
|
return;
|
|
|
/* Reselmsgin -> Status */
|
/* Reselmsgin -> Status */
|
case STATE(STAT_STATUS, PHASE_RECONNECTED):
|
case STATE(STAT_STATUS, PHASE_RECONNECTED):
|
fas216_finish_reconnect(info);
|
fas216_finish_reconnect(info);
|
goto status;
|
goto status;
|
case STATE(STAT_STATUS, PHASE_DATAOUT): /* Data Out -> Status */
|
case STATE(STAT_STATUS, PHASE_DATAOUT): /* Data Out -> Status */
|
case STATE(STAT_STATUS, PHASE_DATAIN): /* Data In -> Status */
|
case STATE(STAT_STATUS, PHASE_DATAIN): /* Data In -> Status */
|
fas216_stoptransfer(info);
|
fas216_stoptransfer(info);
|
case STATE(STAT_STATUS, PHASE_SELSTEPS):/* Sel w/ steps -> Status */
|
case STATE(STAT_STATUS, PHASE_SELSTEPS):/* Sel w/ steps -> Status */
|
case STATE(STAT_STATUS, PHASE_MSGOUT): /* Message Out -> Status */
|
case STATE(STAT_STATUS, PHASE_MSGOUT): /* Message Out -> Status */
|
case STATE(STAT_STATUS, PHASE_COMMAND): /* Command -> Status */
|
case STATE(STAT_STATUS, PHASE_COMMAND): /* Command -> Status */
|
case STATE(STAT_STATUS, PHASE_MSGIN): /* Message In -> Status */
|
case STATE(STAT_STATUS, PHASE_MSGIN): /* Message In -> Status */
|
status:
|
status:
|
outb(CMD_INITCMDCOMPLETE, REG_CMD(info));
|
outb(CMD_INITCMDCOMPLETE, REG_CMD(info));
|
info->scsi.phase = PHASE_STATUS;
|
info->scsi.phase = PHASE_STATUS;
|
return;
|
return;
|
|
|
case STATE(STAT_MESGIN, PHASE_DATAOUT): /* Data Out -> Message In */
|
case STATE(STAT_MESGIN, PHASE_DATAOUT): /* Data Out -> Message In */
|
case STATE(STAT_MESGIN, PHASE_DATAIN): /* Data In -> Message In */
|
case STATE(STAT_MESGIN, PHASE_DATAIN): /* Data In -> Message In */
|
fas216_stoptransfer(info);
|
fas216_stoptransfer(info);
|
case STATE(STAT_MESGIN, PHASE_SELSTEPS):/* Sel w/ steps -> Message In */
|
case STATE(STAT_MESGIN, PHASE_SELSTEPS):/* Sel w/ steps -> Message In */
|
case STATE(STAT_MESGIN, PHASE_MSGOUT): /* Message Out -> Message In */
|
case STATE(STAT_MESGIN, PHASE_MSGOUT): /* Message Out -> Message In */
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
info->scsi.phase = PHASE_MSGIN;
|
info->scsi.phase = PHASE_MSGIN;
|
return;
|
return;
|
|
|
/* Reselmsgin -> Message In */
|
/* Reselmsgin -> Message In */
|
case STATE(STAT_MESGIN, PHASE_RECONNECTED):
|
case STATE(STAT_MESGIN, PHASE_RECONNECTED):
|
case STATE(STAT_MESGIN, PHASE_MSGIN):
|
case STATE(STAT_MESGIN, PHASE_MSGIN):
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
return;
|
return;
|
|
|
/* Reselmsgin -> Command */
|
/* Reselmsgin -> Command */
|
case STATE(STAT_COMMAND, PHASE_RECONNECTED):
|
case STATE(STAT_COMMAND, PHASE_RECONNECTED):
|
fas216_finish_reconnect(info);
|
fas216_finish_reconnect(info);
|
case STATE(STAT_COMMAND, PHASE_MSGOUT): /* Message Out -> Command */
|
case STATE(STAT_COMMAND, PHASE_MSGOUT): /* Message Out -> Command */
|
case STATE(STAT_COMMAND, PHASE_MSGIN): /* Message In -> Command */
|
case STATE(STAT_COMMAND, PHASE_MSGIN): /* Message In -> Command */
|
fas216_send_command(info);
|
fas216_send_command(info);
|
info->scsi.phase = PHASE_COMMAND;
|
info->scsi.phase = PHASE_COMMAND;
|
return;
|
return;
|
/* Selection -> Message Out */
|
/* Selection -> Message Out */
|
case STATE(STAT_MESGOUT, PHASE_SELECTION):
|
case STATE(STAT_MESGOUT, PHASE_SELECTION):
|
fas216_send_messageout(info, 1);
|
fas216_send_messageout(info, 1);
|
return;
|
return;
|
/* Any -> Message Out */
|
/* Any -> Message Out */
|
case STATE(STAT_MESGOUT, PHASE_MSGOUT_EXPECT):
|
case STATE(STAT_MESGOUT, PHASE_MSGOUT_EXPECT):
|
fas216_send_messageout(info, 0);
|
fas216_send_messageout(info, 0);
|
return;
|
return;
|
|
|
/* Error recovery rules.
|
/* Error recovery rules.
|
* These either attempt to abort or retry the operation.
|
* These either attempt to abort or retry the operation.
|
* TODO: we need more of these
|
* TODO: we need more of these
|
*/
|
*/
|
case STATE(STAT_COMMAND, PHASE_COMMAND):/* Command -> Command */
|
case STATE(STAT_COMMAND, PHASE_COMMAND):/* Command -> Command */
|
/* error - we've sent out all the command bytes
|
/* error - we've sent out all the command bytes
|
* we have.
|
* we have.
|
* NOTE: we need SAVE DATA POINTERS/RESTORE DATA POINTERS
|
* NOTE: we need SAVE DATA POINTERS/RESTORE DATA POINTERS
|
* to include the command bytes sent for this to work
|
* to include the command bytes sent for this to work
|
* correctly.
|
* correctly.
|
*/
|
*/
|
printk(KERN_ERR "scsi%d.%c: "
|
printk(KERN_ERR "scsi%d.%c: "
|
"target trying to receive more command bytes\n",
|
"target trying to receive more command bytes\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(15, REG_STCL(info));
|
outb(15, REG_STCL(info));
|
outb(0, REG_STCM(info));
|
outb(0, REG_STCM(info));
|
outb(0, REG_STCH(info));
|
outb(0, REG_STCH(info));
|
outb(CMD_PADBYTES | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_PADBYTES | CMD_WITHDMA, REG_CMD(info));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
return;
|
return;
|
|
|
/* Selection -> Message Out */
|
/* Selection -> Message Out */
|
case STATE(STAT_MESGOUT, PHASE_SELSTEPS):
|
case STATE(STAT_MESGOUT, PHASE_SELSTEPS):
|
case STATE(STAT_MESGOUT, PHASE_MSGOUT): /* Message Out -> Message Out */
|
case STATE(STAT_MESGOUT, PHASE_MSGOUT): /* Message Out -> Message Out */
|
/* If we get another message out phase, this
|
/* If we get another message out phase, this
|
* usually means some parity error occurred.
|
* usually means some parity error occurred.
|
* Resend complete set of messages. If we have
|
* Resend complete set of messages. If we have
|
* more than 1 byte to send, we need to assert
|
* more than 1 byte to send, we need to assert
|
* ATN again.
|
* ATN again.
|
*/
|
*/
|
if (msgqueue_msglength(&info->scsi.msgs) > 1)
|
if (msgqueue_msglength(&info->scsi.msgs) > 1)
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
|
|
fas216_send_messageout(info, 0);
|
fas216_send_messageout(info, 0);
|
return;
|
return;
|
}
|
}
|
|
|
if (info->scsi.phase == PHASE_MSGIN_DISCONNECT) {
|
if (info->scsi.phase == PHASE_MSGIN_DISCONNECT) {
|
printk(KERN_ERR "scsi%d.%c: disconnect message received, but bus service %s?\n",
|
printk(KERN_ERR "scsi%d.%c: disconnect message received, but bus service %s?\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
fas216_bus_phase(stat));
|
fas216_bus_phase(stat));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
outb(CMD_SETATN, REG_CMD(info));
|
outb(CMD_SETATN, REG_CMD(info));
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
msgqueue_addmsg(&info->scsi.msgs, 1, INITIATOR_ERROR);
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.phase = PHASE_MSGOUT_EXPECT;
|
info->scsi.aborting = 1;
|
info->scsi.aborting = 1;
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
outb(CMD_TRANSFERINFO, REG_CMD(info));
|
return;
|
return;
|
}
|
}
|
printk(KERN_ERR "scsi%d.%c: bus phase %s after %s?\n",
|
printk(KERN_ERR "scsi%d.%c: bus phase %s after %s?\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
fas216_bus_phase(stat),
|
fas216_bus_phase(stat),
|
fas216_drv_phase(info));
|
fas216_drv_phase(info));
|
return;
|
return;
|
|
|
default:
|
default:
|
printk("scsi%d.%c: bus service at step %d?\n",
|
printk("scsi%d.%c: bus service at step %d?\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
ssr & IS_BITS);
|
ssr & IS_BITS);
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
/* Function: void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
* Purpose : handle a function done interrupt from FAS216 chip
|
* Purpose : handle a function done interrupt from FAS216 chip
|
* Params : info - interface which caused function done interrupt
|
* Params : info - interface which caused function done interrupt
|
* stat - Status register contents
|
* stat - Status register contents
|
* ssr - SCSI Status register contents
|
* ssr - SCSI Status register contents
|
*/
|
*/
|
static void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
static void fas216_funcdone_intr(FAS216_Info *info, unsigned int stat, unsigned int ssr)
|
{
|
{
|
int status, message;
|
int status, message;
|
|
|
fas216_checkmagic(info, "fas216_funcdone_intr");
|
fas216_checkmagic(info, "fas216_funcdone_intr");
|
|
|
#ifdef DEBUG_FUNCTIONDONE
|
#ifdef DEBUG_FUNCTIONDONE
|
printk("scsi%d.%c: function done: stat=%X ssr=%X phase=%02X\n",
|
printk("scsi%d.%c: function done: stat=%X ssr=%X phase=%02X\n",
|
info->host->host_no, fas216_target(info), stat, ssr, info->scsi.phase);
|
info->host->host_no, fas216_target(info), stat, ssr, info->scsi.phase);
|
#endif
|
#endif
|
switch (info->scsi.phase) {
|
switch (info->scsi.phase) {
|
case PHASE_STATUS: /* status phase - read status and msg */
|
case PHASE_STATUS: /* status phase - read status and msg */
|
status = inb(REG_FF(info));
|
status = inb(REG_FF(info));
|
message = inb(REG_FF(info));
|
message = inb(REG_FF(info));
|
info->scsi.SCp.Message = message;
|
info->scsi.SCp.Message = message;
|
info->scsi.SCp.Status = status;
|
info->scsi.SCp.Status = status;
|
info->scsi.phase = PHASE_DONE;
|
info->scsi.phase = PHASE_DONE;
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
outb(CMD_MSGACCEPTED, REG_CMD(info));
|
break;
|
break;
|
|
|
case PHASE_IDLE: /* reselected? */
|
case PHASE_IDLE: /* reselected? */
|
case PHASE_MSGIN: /* message in phase */
|
case PHASE_MSGIN: /* message in phase */
|
case PHASE_RECONNECTED: /* reconnected command */
|
case PHASE_RECONNECTED: /* reconnected command */
|
if ((stat & STAT_BUSMASK) == STAT_MESGIN) {
|
if ((stat & STAT_BUSMASK) == STAT_MESGIN) {
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
info->scsi.msgin_fifo = inb(REG_CFIS(info)) & CFIS_CF;
|
fas216_message(info);
|
fas216_message(info);
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
printk("scsi%d.%c: internal phase %s for function done?"
|
printk("scsi%d.%c: internal phase %s for function done?"
|
" What do I do with this?\n",
|
" What do I do with this?\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
fas216_drv_phase(info));
|
fas216_drv_phase(info));
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_intr(struct Scsi_Host *instance)
|
/* Function: void fas216_intr(struct Scsi_Host *instance)
|
* Purpose : handle interrupts from the interface to progress a command
|
* Purpose : handle interrupts from the interface to progress a command
|
* Params : instance - interface to service
|
* Params : instance - interface to service
|
*/
|
*/
|
void fas216_intr(struct Scsi_Host *instance)
|
void fas216_intr(struct Scsi_Host *instance)
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)instance->hostdata;
|
FAS216_Info *info = (FAS216_Info *)instance->hostdata;
|
unsigned char isr, ssr, stat;
|
unsigned char isr, ssr, stat;
|
|
|
fas216_checkmagic(info, "fas216_intr");
|
fas216_checkmagic(info, "fas216_intr");
|
|
|
stat = inb(REG_STAT(info));
|
stat = inb(REG_STAT(info));
|
ssr = inb(REG_IS(info));
|
ssr = inb(REG_IS(info));
|
isr = inb(REG_INST(info));
|
isr = inb(REG_INST(info));
|
|
|
add_debug_list(stat, ssr, isr, info->scsi.phase);
|
add_debug_list(stat, ssr, isr, info->scsi.phase);
|
|
|
if (stat & STAT_INT) {
|
if (stat & STAT_INT) {
|
if (isr & INST_BUSRESET)
|
if (isr & INST_BUSRESET)
|
printk("scsi%d.H: bus reset detected\n", instance->host_no);
|
printk("scsi%d.H: bus reset detected\n", instance->host_no);
|
else if (isr & INST_ILLEGALCMD) {
|
else if (isr & INST_ILLEGALCMD) {
|
printk(KERN_CRIT "scsi%d.H: illegal command given\n", instance->host_no);
|
printk(KERN_CRIT "scsi%d.H: illegal command given\n", instance->host_no);
|
fas216_dumpstate(info);
|
fas216_dumpstate(info);
|
} else if (isr & INST_DISCONNECT)
|
} else if (isr & INST_DISCONNECT)
|
fas216_disconnect_intr(info);
|
fas216_disconnect_intr(info);
|
else if (isr & INST_RESELECTED) /* reselected */
|
else if (isr & INST_RESELECTED) /* reselected */
|
fas216_reselected_intr(info);
|
fas216_reselected_intr(info);
|
else if (isr & INST_BUSSERVICE) /* bus service request */
|
else if (isr & INST_BUSSERVICE) /* bus service request */
|
fas216_busservice_intr(info, stat, ssr);
|
fas216_busservice_intr(info, stat, ssr);
|
else if (isr & INST_FUNCDONE) /* function done */
|
else if (isr & INST_FUNCDONE) /* function done */
|
fas216_funcdone_intr(info, stat, ssr);
|
fas216_funcdone_intr(info, stat, ssr);
|
else
|
else
|
printk("scsi%d.%c: unknown interrupt received:"
|
printk("scsi%d.%c: unknown interrupt received:"
|
" phase %s isr %02X ssr %02X stat %02X\n",
|
" phase %s isr %02X ssr %02X stat %02X\n",
|
instance->host_no, fas216_target(info),
|
instance->host_no, fas216_target(info),
|
fas216_drv_phase(info), isr, ssr, stat);
|
fas216_drv_phase(info), isr, ssr, stat);
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_kick(FAS216_Info *info)
|
/* Function: void fas216_kick(FAS216_Info *info)
|
* Purpose : kick a command to the interface - interface should be idle
|
* Purpose : kick a command to the interface - interface should be idle
|
* Params : info - our host interface to kick
|
* Params : info - our host interface to kick
|
* Notes : Interrupts are always disabled!
|
* Notes : Interrupts are always disabled!
|
*/
|
*/
|
static void fas216_kick(FAS216_Info *info)
|
static void fas216_kick(FAS216_Info *info)
|
{
|
{
|
Scsi_Cmnd *SCpnt;
|
Scsi_Cmnd *SCpnt;
|
int tot_msglen, from_queue = 0;
|
int tot_msglen, from_queue = 0;
|
|
|
fas216_checkmagic(info, "fas216_kick");
|
fas216_checkmagic(info, "fas216_kick");
|
|
|
if (info->origSCpnt) {
|
if (info->origSCpnt) {
|
SCpnt = info->origSCpnt;
|
SCpnt = info->origSCpnt;
|
info->origSCpnt = NULL;
|
info->origSCpnt = NULL;
|
} else
|
} else
|
SCpnt = NULL;
|
SCpnt = NULL;
|
|
|
/* retrieve next command */
|
/* retrieve next command */
|
if (!SCpnt) {
|
if (!SCpnt) {
|
SCpnt = queue_remove_exclude(&info->queues.issue, info->busyluns);
|
SCpnt = queue_remove_exclude(&info->queues.issue, info->busyluns);
|
from_queue = 1;
|
from_queue = 1;
|
}
|
}
|
|
|
if (!SCpnt) /* no command pending - just exit */
|
if (!SCpnt) /* no command pending - just exit */
|
return;
|
return;
|
|
|
if (info->scsi.disconnectable && info->SCpnt) {
|
if (info->scsi.disconnectable && info->SCpnt) {
|
queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
|
queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
|
info->scsi.disconnectable = 0;
|
info->scsi.disconnectable = 0;
|
info->SCpnt = NULL;
|
info->SCpnt = NULL;
|
printk("scsi%d.%c: moved command to disconnected queue\n",
|
printk("scsi%d.%c: moved command to disconnected queue\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
}
|
}
|
|
|
/*
|
/*
|
* tagged queuing - allocate a new tag to this command
|
* tagged queuing - allocate a new tag to this command
|
*/
|
*/
|
if (SCpnt->device->tagged_queue && SCpnt->cmnd[0] != REQUEST_SENSE) {
|
if (SCpnt->device->tagged_queue && SCpnt->cmnd[0] != REQUEST_SENSE) {
|
SCpnt->device->current_tag += 1;
|
SCpnt->device->current_tag += 1;
|
if (SCpnt->device->current_tag == 0)
|
if (SCpnt->device->current_tag == 0)
|
SCpnt->device->current_tag = 1;
|
SCpnt->device->current_tag = 1;
|
SCpnt->tag = SCpnt->device->current_tag;
|
SCpnt->tag = SCpnt->device->current_tag;
|
}
|
}
|
|
|
/*
|
/*
|
* claim host busy
|
* claim host busy
|
*/
|
*/
|
info->scsi.phase = PHASE_SELECTION;
|
info->scsi.phase = PHASE_SELECTION;
|
info->SCpnt = SCpnt;
|
info->SCpnt = SCpnt;
|
info->scsi.SCp = SCpnt->SCp;
|
info->scsi.SCp = SCpnt->SCp;
|
info->dma.transfer_type = fasdma_none;
|
info->dma.transfer_type = fasdma_none;
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: starting cmd %02X",
|
printk("scsi%d.%c: starting cmd %02X",
|
info->host->host_no, '0' + SCpnt->target,
|
info->host->host_no, '0' + SCpnt->target,
|
SCpnt->cmnd[0]);
|
SCpnt->cmnd[0]);
|
#endif
|
#endif
|
|
|
if (from_queue) {
|
if (from_queue) {
|
#ifdef SCSI2_TAG
|
#ifdef SCSI2_TAG
|
if (SCpnt->device->tagged_queue && SCpnt->cmnd[0] != REQUEST_SENSE &&
|
if (SCpnt->device->tagged_queue && SCpnt->cmnd[0] != REQUEST_SENSE &&
|
SCpnt->cmnd[0] != INQUIRY) {
|
SCpnt->cmnd[0] != INQUIRY) {
|
SCpnt->device->current_tag += 1;
|
SCpnt->device->current_tag += 1;
|
if (SCpnt->device->current_tag == 0)
|
if (SCpnt->device->current_tag == 0)
|
SCpnt->device->current_tag = 1;
|
SCpnt->device->current_tag = 1;
|
SCpnt->tag = SCpnt->device->current_tag;
|
SCpnt->tag = SCpnt->device->current_tag;
|
} else
|
} else
|
#endif
|
#endif
|
set_bit(SCpnt->target * 8 + SCpnt->lun, info->busyluns);
|
set_bit(SCpnt->target * 8 + SCpnt->lun, info->busyluns);
|
|
|
info->stats.removes += 1;
|
info->stats.removes += 1;
|
switch (SCpnt->cmnd[0]) {
|
switch (SCpnt->cmnd[0]) {
|
case WRITE_6:
|
case WRITE_6:
|
case WRITE_10:
|
case WRITE_10:
|
case WRITE_12:
|
case WRITE_12:
|
info->stats.writes += 1;
|
info->stats.writes += 1;
|
break;
|
break;
|
case READ_6:
|
case READ_6:
|
case READ_10:
|
case READ_10:
|
case READ_12:
|
case READ_12:
|
info->stats.reads += 1;
|
info->stats.reads += 1;
|
break;
|
break;
|
default:
|
default:
|
info->stats.miscs += 1;
|
info->stats.miscs += 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* build outgoing message bytes */
|
/* build outgoing message bytes */
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
|
|
if (info->device[SCpnt->target].disconnect_ok)
|
if (info->device[SCpnt->target].disconnect_ok)
|
msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(1, SCpnt->lun));
|
msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(1, SCpnt->lun));
|
else
|
else
|
msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(0, SCpnt->lun));
|
msgqueue_addmsg(&info->scsi.msgs, 1, IDENTIFY(0, SCpnt->lun));
|
|
|
/* add tag message if required */
|
/* add tag message if required */
|
if (SCpnt->tag)
|
if (SCpnt->tag)
|
msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG, SCpnt->tag);
|
msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG, SCpnt->tag);
|
|
|
#ifdef SCSI2_WIDE
|
#ifdef SCSI2_WIDE
|
if (info->device[SCpnt->target].wide_state == neg_wait) {
|
if (info->device[SCpnt->target].wide_state == neg_wait) {
|
info->device[SCpnt->target].wide_state = neg_inprogress;
|
info->device[SCpnt->target].wide_state = neg_inprogress;
|
msgqueue_addmsg(&info->scsi.msgs, 4,
|
msgqueue_addmsg(&info->scsi.msgs, 4,
|
EXTENDED_MESSAGE, 2, EXTENDED_WDTR,
|
EXTENDED_MESSAGE, 2, EXTENDED_WDTR,
|
info->ifcfg.wide_max_size);
|
info->ifcfg.wide_max_size);
|
}
|
}
|
#ifdef SCSI2_SYNC
|
#ifdef SCSI2_SYNC
|
else
|
else
|
#endif
|
#endif
|
#endif
|
#endif
|
#ifdef SCSI2_SYNC
|
#ifdef SCSI2_SYNC
|
if ((info->device[SCpnt->target].sync_state == neg_wait ||
|
if ((info->device[SCpnt->target].sync_state == neg_wait ||
|
info->device[SCpnt->target].sync_state == neg_complete) &&
|
info->device[SCpnt->target].sync_state == neg_complete) &&
|
(SCpnt->cmnd[0] == REQUEST_SENSE ||
|
(SCpnt->cmnd[0] == REQUEST_SENSE ||
|
SCpnt->cmnd[0] == INQUIRY)) {
|
SCpnt->cmnd[0] == INQUIRY)) {
|
info->device[SCpnt->target].sync_state = neg_inprogress;
|
info->device[SCpnt->target].sync_state = neg_inprogress;
|
msgqueue_addmsg(&info->scsi.msgs, 5,
|
msgqueue_addmsg(&info->scsi.msgs, 5,
|
EXTENDED_MESSAGE, 3, EXTENDED_SDTR,
|
EXTENDED_MESSAGE, 3, EXTENDED_SDTR,
|
1000 / info->ifcfg.clockrate,
|
1000 / info->ifcfg.clockrate,
|
info->ifcfg.sync_max_depth);
|
info->ifcfg.sync_max_depth);
|
}
|
}
|
#endif
|
#endif
|
|
|
/* following what the ESP driver says */
|
/* following what the ESP driver says */
|
outb(0, REG_STCL(info));
|
outb(0, REG_STCL(info));
|
outb(0, REG_STCM(info));
|
outb(0, REG_STCM(info));
|
outb(0, REG_STCH(info));
|
outb(0, REG_STCH(info));
|
outb(CMD_NOP | CMD_WITHDMA, REG_CMD(info));
|
outb(CMD_NOP | CMD_WITHDMA, REG_CMD(info));
|
|
|
/* flush FIFO */
|
/* flush FIFO */
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
outb(CMD_FLUSHFIFO, REG_CMD(info));
|
|
|
/* load bus-id and timeout */
|
/* load bus-id and timeout */
|
outb(BUSID(SCpnt->target), REG_SDID(info));
|
outb(BUSID(SCpnt->target), REG_SDID(info));
|
outb(info->ifcfg.select_timeout, REG_STIM(info));
|
outb(info->ifcfg.select_timeout, REG_STIM(info));
|
|
|
/* synchronous transfers */
|
/* synchronous transfers */
|
fas216_set_sync(info, SCpnt->target);
|
fas216_set_sync(info, SCpnt->target);
|
|
|
tot_msglen = msgqueue_msglength(&info->scsi.msgs);
|
tot_msglen = msgqueue_msglength(&info->scsi.msgs);
|
|
|
if (tot_msglen == 1 || tot_msglen == 3) {
|
if (tot_msglen == 1 || tot_msglen == 3) {
|
/*
|
/*
|
* We have an easy message length to send...
|
* We have an easy message length to send...
|
*/
|
*/
|
struct message *msg;
|
struct message *msg;
|
int msgnr = 0, i;
|
int msgnr = 0, i;
|
|
|
info->scsi.phase = PHASE_SELSTEPS;
|
info->scsi.phase = PHASE_SELSTEPS;
|
|
|
/* load message bytes */
|
/* load message bytes */
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
while ((msg = msgqueue_getmsg(&info->scsi.msgs, msgnr++)) != NULL) {
|
for (i = 0; i < msg->length; i++)
|
for (i = 0; i < msg->length; i++)
|
outb(msg->msg[i], REG_FF(info));
|
outb(msg->msg[i], REG_FF(info));
|
msg->fifo = tot_msglen - (inb(REG_CFIS(info)) & CFIS_CF);
|
msg->fifo = tot_msglen - (inb(REG_CFIS(info)) & CFIS_CF);
|
}
|
}
|
|
|
/* load command */
|
/* load command */
|
for (i = 0; i < SCpnt->cmd_len; i++)
|
for (i = 0; i < SCpnt->cmd_len; i++)
|
outb(SCpnt->cmnd[i], REG_FF(info));
|
outb(SCpnt->cmnd[i], REG_FF(info));
|
|
|
if (tot_msglen == 1)
|
if (tot_msglen == 1)
|
outb(CMD_SELECTATN, REG_CMD(info));
|
outb(CMD_SELECTATN, REG_CMD(info));
|
else
|
else
|
outb(CMD_SELECTATN3, REG_CMD(info));
|
outb(CMD_SELECTATN3, REG_CMD(info));
|
} else {
|
} else {
|
/*
|
/*
|
* We have an unusual number of message bytes to send.
|
* We have an unusual number of message bytes to send.
|
* Load first byte into fifo, and issue SELECT with ATN and
|
* Load first byte into fifo, and issue SELECT with ATN and
|
* stop steps.
|
* stop steps.
|
*/
|
*/
|
struct message *msg = msgqueue_getmsg(&info->scsi.msgs, 0);
|
struct message *msg = msgqueue_getmsg(&info->scsi.msgs, 0);
|
|
|
outb(msg->msg[0], REG_FF(info));
|
outb(msg->msg[0], REG_FF(info));
|
msg->fifo = 1;
|
msg->fifo = 1;
|
|
|
outb(CMD_SELECTATNSTOP, REG_CMD(info));
|
outb(CMD_SELECTATNSTOP, REG_CMD(info));
|
}
|
}
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk(", data pointers [%p, %X]\n",
|
printk(", data pointers [%p, %X]\n",
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
#endif
|
#endif
|
/* should now get either DISCONNECT or (FUNCTION DONE with BUS SERVICE) intr */
|
/* should now get either DISCONNECT or (FUNCTION DONE with BUS SERVICE) intr */
|
}
|
}
|
|
|
/* Function: void fas216_done(FAS216_Info *info, unsigned int result)
|
/* Function: void fas216_done(FAS216_Info *info, unsigned int result)
|
* Purpose : complete processing for command
|
* Purpose : complete processing for command
|
* Params : info - interface that completed
|
* Params : info - interface that completed
|
* result - driver byte of result
|
* result - driver byte of result
|
*/
|
*/
|
static void fas216_done(FAS216_Info *info, unsigned int result)
|
static void fas216_done(FAS216_Info *info, unsigned int result)
|
{
|
{
|
Scsi_Cmnd *SCpnt;
|
Scsi_Cmnd *SCpnt;
|
|
|
fas216_checkmagic(info, "fas216_done");
|
fas216_checkmagic(info, "fas216_done");
|
|
|
SCpnt = info->SCpnt;
|
SCpnt = info->SCpnt;
|
|
|
if (info->scsi.aborting) {
|
if (info->scsi.aborting) {
|
printk("scsi%d.%c: uncaught abort - returning DID_ABORT\n",
|
printk("scsi%d.%c: uncaught abort - returning DID_ABORT\n",
|
info->host->host_no, fas216_target(info));
|
info->host->host_no, fas216_target(info));
|
result = DID_ABORT;
|
result = DID_ABORT;
|
info->scsi.aborting = 0;
|
info->scsi.aborting = 0;
|
}
|
}
|
|
|
info->stats.fins += 1;
|
info->stats.fins += 1;
|
|
|
if (SCpnt) {
|
if (SCpnt) {
|
info->scsi.phase = PHASE_IDLE;
|
info->scsi.phase = PHASE_IDLE;
|
info->SCpnt = NULL;
|
info->SCpnt = NULL;
|
|
|
SCpnt->result = result << 16 | info->scsi.SCp.Message << 8 |
|
SCpnt->result = result << 16 | info->scsi.SCp.Message << 8 |
|
info->scsi.SCp.Status;
|
info->scsi.SCp.Status;
|
|
|
/*
|
/*
|
* In theory, this should not happen, but just in case it does.
|
* In theory, this should not happen, but just in case it does.
|
*/
|
*/
|
if (info->scsi.SCp.ptr &&
|
if (info->scsi.SCp.ptr &&
|
info->scsi.SCp.this_residual &&
|
info->scsi.SCp.this_residual &&
|
result == DID_OK) {
|
result == DID_OK) {
|
switch (SCpnt->cmnd[0]) {
|
switch (SCpnt->cmnd[0]) {
|
case INQUIRY:
|
case INQUIRY:
|
case START_STOP:
|
case START_STOP:
|
case READ_CAPACITY:
|
case READ_CAPACITY:
|
case TEST_UNIT_READY:
|
case TEST_UNIT_READY:
|
case MODE_SENSE:
|
case MODE_SENSE:
|
break;
|
break;
|
|
|
default:
|
default:
|
switch (status_byte(SCpnt->result)) {
|
switch (status_byte(SCpnt->result)) {
|
case CHECK_CONDITION:
|
case CHECK_CONDITION:
|
case COMMAND_TERMINATED:
|
case COMMAND_TERMINATED:
|
case BUSY:
|
case BUSY:
|
case QUEUE_FULL:
|
case QUEUE_FULL:
|
case RESERVATION_CONFLICT:
|
case RESERVATION_CONFLICT:
|
break;
|
break;
|
|
|
default:
|
default:
|
printk(KERN_ERR "scsi%d.H: incomplete data transfer "
|
printk(KERN_ERR "scsi%d.H: incomplete data transfer "
|
"detected: res=%08X ptr=%p len=%X command=",
|
"detected: res=%08X ptr=%p len=%X command=",
|
info->host->host_no, SCpnt->result,
|
info->host->host_no, SCpnt->result,
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
|
print_command(SCpnt->cmnd);
|
print_command(SCpnt->cmnd);
|
}
|
}
|
}
|
}
|
}
|
}
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: scsi command (%p) complete, result=%08X\n",
|
printk("scsi%d.%c: scsi command (%p) complete, result=%08X\n",
|
info->host->host_no, fas216_target(info),
|
info->host->host_no, fas216_target(info),
|
SCpnt, SCpnt->result);
|
SCpnt, SCpnt->result);
|
#endif
|
#endif
|
|
|
if (!SCpnt->scsi_done)
|
if (!SCpnt->scsi_done)
|
panic("scsi%d.H: null scsi_done function in "
|
panic("scsi%d.H: null scsi_done function in "
|
"fas216_done", info->host->host_no);
|
"fas216_done", info->host->host_no);
|
|
|
clear_bit(SCpnt->target * 8 + SCpnt->lun, info->busyluns);
|
clear_bit(SCpnt->target * 8 + SCpnt->lun, info->busyluns);
|
|
|
SCpnt->scsi_done(SCpnt);
|
SCpnt->scsi_done(SCpnt);
|
} else
|
} else
|
panic("scsi%d.H: null command in fas216_done", info->host->host_no);
|
panic("scsi%d.H: null command in fas216_done", info->host->host_no);
|
|
|
if (info->scsi.irq != NO_IRQ)
|
if (info->scsi.irq != NO_IRQ)
|
fas216_kick(info);
|
fas216_kick(info);
|
}
|
}
|
|
|
/* Function: int fas216_queue_command(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
/* Function: int fas216_queue_command(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
* Purpose : queue a command for adapter to process.
|
* Purpose : queue a command for adapter to process.
|
* Params : SCpnt - Command to queue
|
* Params : SCpnt - Command to queue
|
* done - done function to call once command is complete
|
* done - done function to call once command is complete
|
* Returns : 0 - success, else error
|
* Returns : 0 - success, else error
|
*/
|
*/
|
int fas216_queue_command(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
int fas216_queue_command(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
|
|
fas216_checkmagic(info, "fas216_queue_command");
|
fas216_checkmagic(info, "fas216_queue_command");
|
|
|
#ifdef DEBUG_CONNECT
|
#ifdef DEBUG_CONNECT
|
printk("scsi%d.%c: received queuable command (%p) %02X\n",
|
printk("scsi%d.%c: received queuable command (%p) %02X\n",
|
SCpnt->host->host_no, '0' + SCpnt->target,
|
SCpnt->host->host_no, '0' + SCpnt->target,
|
SCpnt, SCpnt->cmnd[0]);
|
SCpnt, SCpnt->cmnd[0]);
|
#endif
|
#endif
|
|
|
SCpnt->scsi_done = done;
|
SCpnt->scsi_done = done;
|
SCpnt->host_scribble = NULL;
|
SCpnt->host_scribble = NULL;
|
SCpnt->result = 0;
|
SCpnt->result = 0;
|
SCpnt->SCp.Message = 0;
|
SCpnt->SCp.Message = 0;
|
SCpnt->SCp.Status = 0;
|
SCpnt->SCp.Status = 0;
|
|
|
if (SCpnt->use_sg) {
|
if (SCpnt->use_sg) {
|
unsigned long len = 0;
|
unsigned long len = 0;
|
int buf;
|
int buf;
|
|
|
SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->buffer;
|
SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->buffer;
|
SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
|
SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
|
SCpnt->SCp.ptr = (char *) SCpnt->SCp.buffer->address;
|
SCpnt->SCp.ptr = (char *) SCpnt->SCp.buffer->address;
|
SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
|
SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
|
/*
|
/*
|
* Calculate correct buffer length
|
* Calculate correct buffer length
|
*/
|
*/
|
for (buf = 0; buf <= SCpnt->SCp.buffers_residual; buf++)
|
for (buf = 0; buf <= SCpnt->SCp.buffers_residual; buf++)
|
len += SCpnt->SCp.buffer[buf].length;
|
len += SCpnt->SCp.buffer[buf].length;
|
SCpnt->request_bufflen = len;
|
SCpnt->request_bufflen = len;
|
} else {
|
} else {
|
SCpnt->SCp.buffer = NULL;
|
SCpnt->SCp.buffer = NULL;
|
SCpnt->SCp.buffers_residual = 0;
|
SCpnt->SCp.buffers_residual = 0;
|
SCpnt->SCp.ptr = (unsigned char *)SCpnt->request_buffer;
|
SCpnt->SCp.ptr = (unsigned char *)SCpnt->request_buffer;
|
SCpnt->SCp.this_residual = SCpnt->request_bufflen;
|
SCpnt->SCp.this_residual = SCpnt->request_bufflen;
|
}
|
}
|
|
|
info->stats.queues += 1;
|
info->stats.queues += 1;
|
SCpnt->tag = 0;
|
SCpnt->tag = 0;
|
|
|
if (info->scsi.irq != NO_IRQ) {
|
if (info->scsi.irq != NO_IRQ) {
|
unsigned long flags;
|
unsigned long flags;
|
|
|
/* add command into execute queue and let it complete under
|
/* add command into execute queue and let it complete under
|
* the drivers interrupts.
|
* the drivers interrupts.
|
*/
|
*/
|
if (!queue_add_cmd_ordered(&info->queues.issue, SCpnt)) {
|
if (!queue_add_cmd_ordered(&info->queues.issue, SCpnt)) {
|
SCpnt->result = DID_ERROR << 16;
|
SCpnt->result = DID_ERROR << 16;
|
done(SCpnt);
|
done(SCpnt);
|
}
|
}
|
save_flags_cli(flags);
|
save_flags_cli(flags);
|
if (!info->SCpnt || info->scsi.disconnectable)
|
if (!info->SCpnt || info->scsi.disconnectable)
|
fas216_kick(info);
|
fas216_kick(info);
|
restore_flags(flags);
|
restore_flags(flags);
|
} else {
|
} else {
|
/* no interrupts to rely on - we'll have to handle the
|
/* no interrupts to rely on - we'll have to handle the
|
* command ourselves. For now, we give up.
|
* command ourselves. For now, we give up.
|
*/
|
*/
|
SCpnt->result = DID_ERROR << 16;
|
SCpnt->result = DID_ERROR << 16;
|
done(SCpnt);
|
done(SCpnt);
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Function: void fas216_internal_done(Scsi_Cmnd *SCpnt)
|
/* Function: void fas216_internal_done(Scsi_Cmnd *SCpnt)
|
* Purpose : trigger restart of a waiting thread in fas216_command
|
* Purpose : trigger restart of a waiting thread in fas216_command
|
* Params : SCpnt - Command to wake
|
* Params : SCpnt - Command to wake
|
*/
|
*/
|
static void fas216_internal_done(Scsi_Cmnd *SCpnt)
|
static void fas216_internal_done(Scsi_Cmnd *SCpnt)
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
|
|
fas216_checkmagic(info, "fas216_internal_done");
|
fas216_checkmagic(info, "fas216_internal_done");
|
|
|
info->internal_done = 1;
|
info->internal_done = 1;
|
}
|
}
|
|
|
/* Function: int fas216_command(Scsi_Cmnd *SCpnt)
|
/* Function: int fas216_command(Scsi_Cmnd *SCpnt)
|
* Purpose : queue a command for adapter to process.
|
* Purpose : queue a command for adapter to process.
|
* Params : SCpnt - Command to queue
|
* Params : SCpnt - Command to queue
|
* Returns : scsi result code
|
* Returns : scsi result code
|
*/
|
*/
|
int fas216_command(Scsi_Cmnd *SCpnt)
|
int fas216_command(Scsi_Cmnd *SCpnt)
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
unsigned long flags;
|
unsigned long flags;
|
|
|
fas216_checkmagic(info, "fas216_command");
|
fas216_checkmagic(info, "fas216_command");
|
|
|
info->internal_done = 0;
|
info->internal_done = 0;
|
fas216_queue_command(SCpnt, fas216_internal_done);
|
fas216_queue_command(SCpnt, fas216_internal_done);
|
|
|
/*
|
/*
|
* This wastes time, since we can't return until the command is
|
* This wastes time, since we can't return until the command is
|
* complete. We can't seep either since we may get re-entered!
|
* complete. We can't seep either since we may get re-entered!
|
* However, we must re-enable interrupts, or else we'll be
|
* However, we must re-enable interrupts, or else we'll be
|
* waiting forever.
|
* waiting forever.
|
*/
|
*/
|
save_flags(flags);
|
save_flags(flags);
|
sti();
|
sti();
|
|
|
while (!info->internal_done)
|
while (!info->internal_done)
|
barrier();
|
barrier();
|
|
|
restore_flags(flags);
|
restore_flags(flags);
|
|
|
return SCpnt->result;
|
return SCpnt->result;
|
}
|
}
|
|
|
/* Prototype: void fas216_reportstatus(Scsi_Cmnd **SCpntp1,
|
/* Prototype: void fas216_reportstatus(Scsi_Cmnd **SCpntp1,
|
* Scsi_Cmnd **SCpntp2, int result)
|
* Scsi_Cmnd **SCpntp2, int result)
|
* Purpose : pass a result to *SCpntp1, and check if *SCpntp1 = *SCpntp2
|
* Purpose : pass a result to *SCpntp1, and check if *SCpntp1 = *SCpntp2
|
* Params : SCpntp1 - pointer to command to return
|
* Params : SCpntp1 - pointer to command to return
|
* SCpntp2 - pointer to command to check
|
* SCpntp2 - pointer to command to check
|
* result - result to pass back to mid-level done function
|
* result - result to pass back to mid-level done function
|
* Returns : *SCpntp2 = NULL if *SCpntp1 is the same command
|
* Returns : *SCpntp2 = NULL if *SCpntp1 is the same command
|
* structure as *SCpntp2.
|
* structure as *SCpntp2.
|
*/
|
*/
|
static void fas216_reportstatus(Scsi_Cmnd **SCpntp1, Scsi_Cmnd **SCpntp2,
|
static void fas216_reportstatus(Scsi_Cmnd **SCpntp1, Scsi_Cmnd **SCpntp2,
|
int result)
|
int result)
|
{
|
{
|
Scsi_Cmnd *SCpnt = *SCpntp1;
|
Scsi_Cmnd *SCpnt = *SCpntp1;
|
|
|
if (SCpnt) {
|
if (SCpnt) {
|
*SCpntp1 = NULL;
|
*SCpntp1 = NULL;
|
|
|
SCpnt->result = result;
|
SCpnt->result = result;
|
SCpnt->scsi_done(SCpnt);
|
SCpnt->scsi_done(SCpnt);
|
}
|
}
|
|
|
if (SCpnt == *SCpntp2)
|
if (SCpnt == *SCpntp2)
|
*SCpntp2 = NULL;
|
*SCpntp2 = NULL;
|
}
|
}
|
|
|
/* Function: int fas216_abort(Scsi_Cmnd *SCpnt)
|
/* Function: int fas216_abort(Scsi_Cmnd *SCpnt)
|
* Purpose : abort a command if something horrible happens.
|
* Purpose : abort a command if something horrible happens.
|
* Params : SCpnt - Command that is believed to be causing a problem.
|
* Params : SCpnt - Command that is believed to be causing a problem.
|
* Returns : one of SCSI_ABORT_ macros.
|
* Returns : one of SCSI_ABORT_ macros.
|
*/
|
*/
|
int fas216_abort(Scsi_Cmnd *SCpnt)
|
int fas216_abort(Scsi_Cmnd *SCpnt)
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
|
int result = SCSI_ABORT_SNOOZE;
|
int result = SCSI_ABORT_SNOOZE;
|
|
|
fas216_checkmagic(info, "fas216_abort");
|
fas216_checkmagic(info, "fas216_abort");
|
|
|
info->stats.aborts += 1;
|
info->stats.aborts += 1;
|
|
|
print_debug_list();
|
print_debug_list();
|
fas216_dumpstate(info);
|
fas216_dumpstate(info);
|
fas216_dumpinfo(info);
|
fas216_dumpinfo(info);
|
printk(KERN_WARNING "scsi%d: fas216_abort: ", info->host->host_no);
|
printk(KERN_WARNING "scsi%d: fas216_abort: ", info->host->host_no);
|
|
|
do {
|
do {
|
/* If command is waiting in the issue queue, then we can
|
/* If command is waiting in the issue queue, then we can
|
* simply remove the command and return abort status
|
* simply remove the command and return abort status
|
*/
|
*/
|
if (queue_removecmd(&info->queues.issue, SCpnt)) {
|
if (queue_removecmd(&info->queues.issue, SCpnt)) {
|
SCpnt->result = DID_ABORT << 16;
|
SCpnt->result = DID_ABORT << 16;
|
SCpnt->scsi_done(SCpnt);
|
SCpnt->scsi_done(SCpnt);
|
printk("command on issue queue");
|
printk("command on issue queue");
|
result = SCSI_ABORT_SUCCESS;
|
result = SCSI_ABORT_SUCCESS;
|
break;
|
break;
|
}
|
}
|
|
|
/* If the command is on the disconencted queue, we need to
|
/* If the command is on the disconencted queue, we need to
|
* reconnect to the device
|
* reconnect to the device
|
*/
|
*/
|
if (queue_cmdonqueue(&info->queues.disconnected, SCpnt))
|
if (queue_cmdonqueue(&info->queues.disconnected, SCpnt))
|
printk("command on disconnected queue");
|
printk("command on disconnected queue");
|
|
|
/* If the command is connected, we need to flag that the
|
/* If the command is connected, we need to flag that the
|
* command needs to be aborted
|
* command needs to be aborted
|
*/
|
*/
|
if (info->SCpnt == SCpnt)
|
if (info->SCpnt == SCpnt)
|
printk("command executing");
|
printk("command executing");
|
|
|
/* If the command is pending for execution, then again
|
/* If the command is pending for execution, then again
|
* this is simple - we remove it and report abort status
|
* this is simple - we remove it and report abort status
|
*/
|
*/
|
if (info->origSCpnt == SCpnt) {
|
if (info->origSCpnt == SCpnt) {
|
info->origSCpnt = NULL;
|
info->origSCpnt = NULL;
|
SCpnt->result = DID_ABORT << 16;
|
SCpnt->result = DID_ABORT << 16;
|
SCpnt->scsi_done(SCpnt);
|
SCpnt->scsi_done(SCpnt);
|
printk("command waiting for execution");
|
printk("command waiting for execution");
|
result = SCSI_ABORT_SUCCESS;
|
result = SCSI_ABORT_SUCCESS;
|
break;
|
break;
|
}
|
}
|
} while (0);
|
} while (0);
|
|
|
printk("\n");
|
printk("\n");
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Function: void fas216_reset_state(FAS216_Info *info)
|
/* Function: void fas216_reset_state(FAS216_Info *info)
|
* Purpose : Initialise driver internal state
|
* Purpose : Initialise driver internal state
|
* Params : info - state to initialise
|
* Params : info - state to initialise
|
*/
|
*/
|
static void fas216_reset_state(FAS216_Info *info)
|
static void fas216_reset_state(FAS216_Info *info)
|
{
|
{
|
neg_t sync_state, wide_state;
|
neg_t sync_state, wide_state;
|
int i;
|
int i;
|
|
|
fas216_checkmagic(info, "fas216_reset_state");
|
fas216_checkmagic(info, "fas216_reset_state");
|
|
|
/*
|
/*
|
* Clear out all stale info in our state structure
|
* Clear out all stale info in our state structure
|
*/
|
*/
|
memset(info->busyluns, 0, sizeof(info->busyluns));
|
memset(info->busyluns, 0, sizeof(info->busyluns));
|
msgqueue_flush(&info->scsi.msgs);
|
msgqueue_flush(&info->scsi.msgs);
|
info->scsi.reconnected.target = 0;
|
info->scsi.reconnected.target = 0;
|
info->scsi.reconnected.lun = 0;
|
info->scsi.reconnected.lun = 0;
|
info->scsi.reconnected.tag = 0;
|
info->scsi.reconnected.tag = 0;
|
info->scsi.disconnectable = 0;
|
info->scsi.disconnectable = 0;
|
info->scsi.aborting = 0;
|
info->scsi.aborting = 0;
|
info->scsi.phase = PHASE_IDLE;
|
info->scsi.phase = PHASE_IDLE;
|
info->scsi.async_stp =
|
info->scsi.async_stp =
|
fas216_syncperiod(info, info->ifcfg.asyncperiod);
|
fas216_syncperiod(info, info->ifcfg.asyncperiod);
|
|
|
if (info->ifcfg.wide_max_size == 0)
|
if (info->ifcfg.wide_max_size == 0)
|
wide_state = neg_invalid;
|
wide_state = neg_invalid;
|
else
|
else
|
#ifdef SCSI2_WIDE
|
#ifdef SCSI2_WIDE
|
wide_state = neg_wait;
|
wide_state = neg_wait;
|
#else
|
#else
|
wide_state = neg_invalid;
|
wide_state = neg_invalid;
|
#endif
|
#endif
|
|
|
if (info->host->dma_channel == NO_DMA || !info->dma.setup)
|
if (info->host->dma_channel == NO_DMA || !info->dma.setup)
|
sync_state = neg_invalid;
|
sync_state = neg_invalid;
|
else
|
else
|
#ifdef SCSI2_SYNC
|
#ifdef SCSI2_SYNC
|
sync_state = neg_wait;
|
sync_state = neg_wait;
|
#else
|
#else
|
sync_state = neg_invalid;
|
sync_state = neg_invalid;
|
#endif
|
#endif
|
|
|
for (i = 0; i < 8; i++) {
|
for (i = 0; i < 8; i++) {
|
info->device[i].disconnect_ok = info->ifcfg.disconnect_ok;
|
info->device[i].disconnect_ok = info->ifcfg.disconnect_ok;
|
info->device[i].sync_state = sync_state;
|
info->device[i].sync_state = sync_state;
|
info->device[i].wide_state = wide_state;
|
info->device[i].wide_state = wide_state;
|
info->device[i].period = info->ifcfg.asyncperiod / 4;
|
info->device[i].period = info->ifcfg.asyncperiod / 4;
|
info->device[i].stp = info->scsi.async_stp;
|
info->device[i].stp = info->scsi.async_stp;
|
info->device[i].sof = 0;
|
info->device[i].sof = 0;
|
info->device[i].wide_xfer = 0;
|
info->device[i].wide_xfer = 0;
|
}
|
}
|
}
|
}
|
|
|
/* Function: void fas216_init_chip(FAS216_Info *info)
|
/* Function: void fas216_init_chip(FAS216_Info *info)
|
* Purpose : Initialise FAS216 state after reset
|
* Purpose : Initialise FAS216 state after reset
|
* Params : info - state structure for interface
|
* Params : info - state structure for interface
|
*/
|
*/
|
static void fas216_init_chip(FAS216_Info *info)
|
static void fas216_init_chip(FAS216_Info *info)
|
{
|
{
|
fas216_checkmagic(info, "fas216_init_chip");
|
fas216_checkmagic(info, "fas216_init_chip");
|
|
|
outb(fas216_clockrate(info->ifcfg.clockrate), REG_CLKF(info));
|
outb(fas216_clockrate(info->ifcfg.clockrate), REG_CLKF(info));
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
outb(info->scsi.cfg[1], REG_CNTL2(info));
|
outb(info->scsi.cfg[1], REG_CNTL2(info));
|
outb(info->scsi.cfg[2], REG_CNTL3(info));
|
outb(info->scsi.cfg[2], REG_CNTL3(info));
|
outb(info->ifcfg.select_timeout, REG_STIM(info));
|
outb(info->ifcfg.select_timeout, REG_STIM(info));
|
outb(0, REG_SOF(info));
|
outb(0, REG_SOF(info));
|
outb(info->scsi.async_stp, REG_STP(info));
|
outb(info->scsi.async_stp, REG_STP(info));
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
}
|
}
|
|
|
/* Function: int fas216_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
|
/* Function: int fas216_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
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* Purpose : resets the adapter if something horrible happens.
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* Purpose : resets the adapter if something horrible happens.
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* Params : SCpnt - Command that is believed to be causing a problem.
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* Params : SCpnt - Command that is believed to be causing a problem.
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* reset_flags - flags indicating reset type that is believed
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* reset_flags - flags indicating reset type that is believed
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* to be required.
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* to be required.
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* Returns : one of SCSI_RESET_ macros, or'd with the SCSI_RESET_*_RESET
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* Returns : one of SCSI_RESET_ macros, or'd with the SCSI_RESET_*_RESET
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* macros.
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* macros.
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*/
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*/
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int fas216_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
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int fas216_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
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{
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{
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FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
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FAS216_Info *info = (FAS216_Info *)SCpnt->host->hostdata;
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Scsi_Cmnd *SCptr;
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Scsi_Cmnd *SCptr;
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int result = 0;
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int result = 0;
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fas216_checkmagic(info, "fas216_reset");
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fas216_checkmagic(info, "fas216_reset");
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/*
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/*
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* Validate that command is actually on one of our queues if we're doing
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* Validate that command is actually on one of our queues if we're doing
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* an asynchronous reset
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* an asynchronous reset
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*/
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*/
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if (reset_flags & SCSI_RESET_ASYNCHRONOUS &&
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if (reset_flags & SCSI_RESET_ASYNCHRONOUS &&
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SCpnt &&
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SCpnt &&
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info->SCpnt != SCpnt &&
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info->SCpnt != SCpnt &&
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info->origSCpnt != SCpnt &&
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info->origSCpnt != SCpnt &&
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!queue_cmdonqueue(&info->queues.disconnected, SCpnt) &&
|
!queue_cmdonqueue(&info->queues.disconnected, SCpnt) &&
|
!queue_cmdonqueue(&info->queues.issue, SCpnt)) {
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!queue_cmdonqueue(&info->queues.issue, SCpnt)) {
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printk("scsi%d: fas216_reset: asynchronous reset for unknown command\n",
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printk("scsi%d: fas216_reset: asynchronous reset for unknown command\n",
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info->host->host_no);
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info->host->host_no);
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return SCSI_RESET_NOT_RUNNING;
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return SCSI_RESET_NOT_RUNNING;
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}
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}
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info->stats.resets += 1;
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info->stats.resets += 1;
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print_debug_list();
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print_debug_list();
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printk(KERN_WARNING "scsi%d: fas216_reset: ", info->host->host_no);
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printk(KERN_WARNING "scsi%d: fas216_reset: ", info->host->host_no);
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if (SCpnt)
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if (SCpnt)
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printk(" for target %d ", SCpnt->target);
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printk(" for target %d ", SCpnt->target);
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outb(info->scsi.cfg[3], REG_CNTL3(info));
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outb(info->scsi.cfg[3], REG_CNTL3(info));
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fas216_stoptransfer(info);
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fas216_stoptransfer(info);
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switch (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET)) {
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switch (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET)) {
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case SCSI_RESET_SUGGEST_BUS_RESET:
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case SCSI_RESET_SUGGEST_BUS_RESET:
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outb(CMD_RESETSCSI, REG_CMD(info));
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outb(CMD_RESETSCSI, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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result |= SCSI_RESET_BUS_RESET;
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result |= SCSI_RESET_BUS_RESET;
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break;
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break;
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case SCSI_RESET_SUGGEST_HOST_RESET:
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case SCSI_RESET_SUGGEST_HOST_RESET:
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outb(CMD_RESETCHIP, REG_CMD(info));
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outb(CMD_RESETCHIP, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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result |= SCSI_RESET_HOST_RESET;
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result |= SCSI_RESET_HOST_RESET;
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break;
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break;
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default:
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default:
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outb(CMD_RESETCHIP, REG_CMD(info));
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outb(CMD_RESETCHIP, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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outb(CMD_NOP, REG_CMD(info));
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outb(CMD_RESETSCSI, REG_CMD(info));
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outb(CMD_RESETSCSI, REG_CMD(info));
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result |= SCSI_RESET_HOST_RESET | SCSI_RESET_BUS_RESET;
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result |= SCSI_RESET_HOST_RESET | SCSI_RESET_BUS_RESET;
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break;
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break;
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}
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}
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udelay(300);
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udelay(300);
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fas216_reset_state(info);
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fas216_reset_state(info);
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fas216_init_chip(info);
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fas216_init_chip(info);
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/*
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/*
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* Signal all commands in progress have been reset
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* Signal all commands in progress have been reset
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*/
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*/
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fas216_reportstatus(&info->SCpnt, &SCpnt, DID_RESET << 16);
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fas216_reportstatus(&info->SCpnt, &SCpnt, DID_RESET << 16);
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while ((SCptr = queue_remove(&info->queues.disconnected)) != NULL)
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while ((SCptr = queue_remove(&info->queues.disconnected)) != NULL)
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fas216_reportstatus(&SCptr, &SCpnt, DID_RESET << 16);
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fas216_reportstatus(&SCptr, &SCpnt, DID_RESET << 16);
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|
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if (SCpnt) {
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if (SCpnt) {
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/*
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/*
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* Command not found on disconnected queue, nor currently
|
* Command not found on disconnected queue, nor currently
|
* executing command - check pending commands
|
* executing command - check pending commands
|
*/
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*/
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if (info->origSCpnt == SCpnt)
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if (info->origSCpnt == SCpnt)
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info->origSCpnt = NULL;
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info->origSCpnt = NULL;
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queue_removecmd(&info->queues.issue, SCpnt);
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queue_removecmd(&info->queues.issue, SCpnt);
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SCpnt->result = DID_RESET << 16;
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SCpnt->result = DID_RESET << 16;
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SCpnt->scsi_done(SCpnt);
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SCpnt->scsi_done(SCpnt);
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}
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}
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printk("\n");
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printk("\n");
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return result | SCSI_RESET_SUCCESS;
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return result | SCSI_RESET_SUCCESS;
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}
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}
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/* Function: int fas216_init(struct Scsi_Host *instance)
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/* Function: int fas216_init(struct Scsi_Host *instance)
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* Purpose : initialise FAS/NCR/AMD SCSI ic.
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* Purpose : initialise FAS/NCR/AMD SCSI ic.
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* Params : instance - a driver-specific filled-out structure
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* Params : instance - a driver-specific filled-out structure
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* Returns : 0 on success
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* Returns : 0 on success
|
*/
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*/
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int fas216_init(struct Scsi_Host *instance)
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int fas216_init(struct Scsi_Host *instance)
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{
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{
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FAS216_Info *info = (FAS216_Info *)instance->hostdata;
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FAS216_Info *info = (FAS216_Info *)instance->hostdata;
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unsigned long flags;
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unsigned long flags;
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int target_jiffies;
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int target_jiffies;
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info->magic_start = MAGIC;
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info->magic_start = MAGIC;
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info->magic_end = MAGIC;
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info->magic_end = MAGIC;
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info->host = instance;
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info->host = instance;
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info->scsi.cfg[0] = instance->this_id;
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info->scsi.cfg[0] = instance->this_id;
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info->scsi.cfg[1] = CNTL2_ENF | CNTL2_S2FE;
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info->scsi.cfg[1] = CNTL2_ENF | CNTL2_S2FE;
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info->scsi.cfg[2] = info->ifcfg.cntl3 | CNTL3_ADIDCHK | CNTL3_G2CB;
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info->scsi.cfg[2] = info->ifcfg.cntl3 | CNTL3_ADIDCHK | CNTL3_G2CB;
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info->scsi.type = "unknown";
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info->scsi.type = "unknown";
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info->SCpnt = NULL;
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info->SCpnt = NULL;
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fas216_reset_state(info);
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fas216_reset_state(info);
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memset(&info->stats, 0, sizeof(info->stats));
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memset(&info->stats, 0, sizeof(info->stats));
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msgqueue_initialise(&info->scsi.msgs);
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msgqueue_initialise(&info->scsi.msgs);
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if (!queue_initialise(&info->queues.issue))
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if (!queue_initialise(&info->queues.issue))
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return 1;
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return 1;
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|
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if (!queue_initialise(&info->queues.disconnected)) {
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if (!queue_initialise(&info->queues.disconnected)) {
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queue_free(&info->queues.issue);
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queue_free(&info->queues.issue);
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return 1;
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return 1;
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}
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}
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outb(0, REG_CNTL3(info));
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outb(0, REG_CNTL3(info));
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outb(CNTL2_S2FE, REG_CNTL2(info));
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outb(CNTL2_S2FE, REG_CNTL2(info));
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|
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if ((inb(REG_CNTL2(info)) & (~0xe0)) != CNTL2_S2FE) {
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if ((inb(REG_CNTL2(info)) & (~0xe0)) != CNTL2_S2FE) {
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info->scsi.type = "NCR53C90";
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info->scsi.type = "NCR53C90";
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} else {
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} else {
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outb(0, REG_CNTL2(info));
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outb(0, REG_CNTL2(info));
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outb(0, REG_CNTL3(info));
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outb(0, REG_CNTL3(info));
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outb(5, REG_CNTL3(info));
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outb(5, REG_CNTL3(info));
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if (inb(REG_CNTL3(info)) != 5) {
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if (inb(REG_CNTL3(info)) != 5) {
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info->scsi.type = "NCR53C90A";
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info->scsi.type = "NCR53C90A";
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} else {
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} else {
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outb(0, REG_CNTL3(info));
|
outb(0, REG_CNTL3(info));
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info->scsi.type = "NCR53C9x";
|
info->scsi.type = "NCR53C9x";
|
}
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}
|
}
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}
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|
|
|
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outb(CNTL3_ADIDCHK, REG_CNTL3(info));
|
outb(CNTL3_ADIDCHK, REG_CNTL3(info));
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outb(0, REG_CNTL3(info));
|
outb(0, REG_CNTL3(info));
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|
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outb(CMD_RESETCHIP, REG_CMD(info));
|
outb(CMD_RESETCHIP, REG_CMD(info));
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outb(CMD_WITHDMA | CMD_NOP, REG_CMD(info));
|
outb(CMD_WITHDMA | CMD_NOP, REG_CMD(info));
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outb(CNTL2_ENF, REG_CNTL2(info));
|
outb(CNTL2_ENF, REG_CNTL2(info));
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outb(CMD_RESETCHIP, REG_CMD(info));
|
outb(CMD_RESETCHIP, REG_CMD(info));
|
switch (inb(REG1_ID(info))) {
|
switch (inb(REG1_ID(info))) {
|
case 12:
|
case 12:
|
info->scsi.type = "Am53CF94";
|
info->scsi.type = "Am53CF94";
|
break;
|
break;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
udelay(300);
|
udelay(300);
|
/* now for the real initialisation */
|
/* now for the real initialisation */
|
fas216_init_chip(info);
|
fas216_init_chip(info);
|
|
|
outb(info->scsi.cfg[0] | CNTL1_DISR, REG_CNTL1(info));
|
outb(info->scsi.cfg[0] | CNTL1_DISR, REG_CNTL1(info));
|
outb(CMD_RESETSCSI, REG_CMD(info));
|
outb(CMD_RESETSCSI, REG_CMD(info));
|
|
|
/* scsi standard says 250ms */
|
/* scsi standard says 250ms */
|
target_jiffies = jiffies + (25 * HZ) / 100;
|
target_jiffies = jiffies + (25 * HZ) / 100;
|
save_flags(flags);
|
save_flags(flags);
|
sti();
|
sti();
|
|
|
while (jiffies < target_jiffies) barrier();
|
while (jiffies < target_jiffies) barrier();
|
|
|
restore_flags(flags);
|
restore_flags(flags);
|
|
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
outb(info->scsi.cfg[0], REG_CNTL1(info));
|
inb(REG_INST(info));
|
inb(REG_INST(info));
|
|
|
/* now for the real initialisation */
|
/* now for the real initialisation */
|
fas216_init_chip(info);
|
fas216_init_chip(info);
|
|
|
fas216_checkmagic(info, "fas216_init");
|
fas216_checkmagic(info, "fas216_init");
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Function: int fas216_release(struct Scsi_Host *instance)
|
/* Function: int fas216_release(struct Scsi_Host *instance)
|
* Purpose : release all resources and put everything to bed for
|
* Purpose : release all resources and put everything to bed for
|
* FAS/NCR/AMD SCSI ic.
|
* FAS/NCR/AMD SCSI ic.
|
* Params : instance - a driver-specific filled-out structure
|
* Params : instance - a driver-specific filled-out structure
|
* Returns : 0 on success
|
* Returns : 0 on success
|
*/
|
*/
|
int fas216_release(struct Scsi_Host *instance)
|
int fas216_release(struct Scsi_Host *instance)
|
{
|
{
|
FAS216_Info *info = (FAS216_Info *)instance->hostdata;
|
FAS216_Info *info = (FAS216_Info *)instance->hostdata;
|
|
|
fas216_checkmagic(info, "fas216_release");
|
fas216_checkmagic(info, "fas216_release");
|
|
|
outb(CMD_RESETCHIP, REG_CMD(info));
|
outb(CMD_RESETCHIP, REG_CMD(info));
|
queue_free(&info->queues.disconnected);
|
queue_free(&info->queues.disconnected);
|
queue_free(&info->queues.issue);
|
queue_free(&info->queues.issue);
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int fas216_print_stats(FAS216_Info *info, char *buffer)
|
int fas216_print_stats(FAS216_Info *info, char *buffer)
|
{
|
{
|
return sprintf(buffer,
|
return sprintf(buffer,
|
"Queued commands: %-10u Issued commands: %-10u\n"
|
"Queued commands: %-10u Issued commands: %-10u\n"
|
"Done commands : %-10u Reads : %-10u\n"
|
"Done commands : %-10u Reads : %-10u\n"
|
"Writes : %-10u Others : %-10u\n"
|
"Writes : %-10u Others : %-10u\n"
|
"Disconnects : %-10u Aborts : %-10u\n"
|
"Disconnects : %-10u Aborts : %-10u\n"
|
"Resets : %-10u\n",
|
"Resets : %-10u\n",
|
info->stats.queues, info->stats.removes,
|
info->stats.queues, info->stats.removes,
|
info->stats.fins, info->stats.reads,
|
info->stats.fins, info->stats.reads,
|
info->stats.writes, info->stats.miscs,
|
info->stats.writes, info->stats.miscs,
|
info->stats.disconnects, info->stats.aborts,
|
info->stats.disconnects, info->stats.aborts,
|
info->stats.resets);
|
info->stats.resets);
|
}
|
}
|
|
|
int fas216_print_device(FAS216_Info *info, Scsi_Device *scd, char *buffer)
|
int fas216_print_device(FAS216_Info *info, Scsi_Device *scd, char *buffer)
|
{
|
{
|
struct fas216_device *dev = &info->device[scd->id];
|
struct fas216_device *dev = &info->device[scd->id];
|
int len = 0;
|
int len = 0;
|
char *p;
|
char *p;
|
|
|
proc_print_scsidevice(scd, buffer, &len, 0);
|
proc_print_scsidevice(scd, buffer, &len, 0);
|
p = buffer + len;
|
p = buffer + len;
|
|
|
p += sprintf(p, " Extensions: ");
|
p += sprintf(p, " Extensions: ");
|
|
|
if (scd->tagged_supported)
|
if (scd->tagged_supported)
|
p += sprintf(p, "TAG %sabled [%d] ",
|
p += sprintf(p, "TAG %sabled [%d] ",
|
scd->tagged_queue ? "en" : "dis",
|
scd->tagged_queue ? "en" : "dis",
|
scd->current_tag);
|
scd->current_tag);
|
|
|
p += sprintf(p, "\n Transfers : %d-bit ",
|
p += sprintf(p, "\n Transfers : %d-bit ",
|
8 << dev->wide_xfer);
|
8 << dev->wide_xfer);
|
|
|
if (dev->sof)
|
if (dev->sof)
|
p += sprintf(p, "sync offset %d, %d ns\n",
|
p += sprintf(p, "sync offset %d, %d ns\n",
|
dev->sof, dev->period * 4);
|
dev->sof, dev->period * 4);
|
else
|
else
|
p += sprintf(p, "async\n");
|
p += sprintf(p, "async\n");
|
|
|
return p - buffer;
|
return p - buffer;
|
}
|
}
|
|
|
