* $Log: NCR5380.c,v $
* Revision 1.10 1998/9/2 Alan Cox
- * (alan@redhat.com)
+ * (alan@lxorguk.ukuu.org.uk)
* Fixed up the timer lockups reported so far. Things still suck. Looking
* forward to 2.3 and per device request queues. Then it'll be possible to
* SMP thread this beast and improve life no end.
* the high level code.
*/
#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_transport_spi.h>
+
+#ifndef NDEBUG
+#define NDEBUG 0
+#endif
+#ifndef NDEBUG_ABORT
+#define NDEBUG_ABORT 0
+#endif
#if (NDEBUG & NDEBUG_LISTS)
#define LIST(x,y) {printk("LINE:%d Adding %p to %p\n", __LINE__, (void*)(x), (void*)(y)); if ((x)==(y)) udelay(5); }
* various queues are valid.
*/
- if (cmd->use_sg) {
- cmd->SCp.buffer = (struct scatterlist *) cmd->buffer;
- cmd->SCp.buffers_residual = cmd->use_sg - 1;
- cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
- cmd->SCp.buffer->offset;
+ if (scsi_bufflen(cmd)) {
+ cmd->SCp.buffer = scsi_sglist(cmd);
+ cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
+ cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
} else {
cmd->SCp.buffer = NULL;
cmd->SCp.buffers_residual = 0;
- cmd->SCp.ptr = (char *) cmd->request_buffer;
- cmd->SCp.this_residual = cmd->request_bufflen;
+ cmd->SCp.ptr = NULL;
+ cmd->SCp.this_residual = 0;
}
}
if((r & bit) == val)
return 0;
if(!in_interrupt())
- yield();
+ cond_resched();
else
cpu_relax();
}
static struct {
unsigned char value;
const char *name;
-} phases[] = {
+} phases[] __maybe_unused = {
{PHASE_DATAOUT, "DATAOUT"},
{PHASE_DATAIN, "DATAIN"},
{PHASE_CMDOUT, "CMDOUT"},
{PHASE_UNKNOWN, "UNKNOWN"}
};
-#ifdef NDEBUG
+#if NDEBUG
static struct {
unsigned char mask;
const char *name;
/*
* Function : int should_disconnect (unsigned char cmd)
*
- * Purpose : decide weather a command would normally disconnect or
+ * Purpose : decide whether a command would normally disconnect or
* not, since if it won't disconnect we should go to sleep.
*
* Input : cmd - opcode of SCSI command
* used by the IRQ probe code.
*/
-static irqreturn_t __init probe_intr(int irq, void *dev_id,
- struct pt_regs *regs)
+static irqreturn_t __init probe_intr(int irq, void *dev_id)
{
probe_irq = irq;
return IRQ_HANDLED;
* Locks: none, irqs must be enabled on entry
*/
-static int __init NCR5380_probe_irq(struct Scsi_Host *instance, int possible)
+static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance,
+ int possible)
{
NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
NCR5380_setup(instance);
for (trying_irqs = i = 0, mask = 1; i < 16; ++i, mask <<= 1)
- if ((mask & possible) && (request_irq(i, &probe_intr, SA_INTERRUPT, "NCR-probe", NULL) == 0))
+ if ((mask & possible) && (request_irq(i, &probe_intr, IRQF_DISABLED, "NCR-probe", NULL) == 0))
trying_irqs |= mask;
timeout = jiffies + (250 * HZ / 1000);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_DATA | ICR_ASSERT_SEL);
while (probe_irq == SCSI_IRQ_NONE && time_before(jiffies, timeout))
- {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
+ schedule_timeout_uninterruptible(1);
NCR5380_write(SELECT_ENABLE_REG, 0);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
* Locks: none
*/
-static void __init NCR5380_print_options(struct Scsi_Host *instance)
+static void __init __maybe_unused
+NCR5380_print_options(struct Scsi_Host *instance)
{
printk(" generic options"
#ifdef AUTOPROBE_IRQ
static
char *lprint_opcode(int opcode, char *pos, char *buffer, int length);
-static
-int NCR5380_proc_info(struct Scsi_Host *instance, char *buffer, char **start, off_t offset, int length, int inout)
+static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance,
+ char *buffer, char **start, off_t offset, int length, int inout)
{
char *pos = buffer;
struct NCR5380_hostdata *hostdata;
hostdata->issue_queue = NULL;
hostdata->disconnected_queue = NULL;
- INIT_WORK(&hostdata->coroutine, NCR5380_main, hostdata);
+ INIT_DELAYED_WORK(&hostdata->coroutine, NCR5380_main);
#ifdef NCR5380_STATS
for (i = 0; i < 8; ++i) {
* @instance: adapter to remove
*/
-static void __devexit NCR5380_exit(struct Scsi_Host *instance)
+static void NCR5380_exit(struct Scsi_Host *instance)
{
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
case WRITE_6:
case WRITE_10:
hostdata->time_write[cmd->device->id] -= (jiffies - hostdata->timebase);
- hostdata->bytes_write[cmd->device->id] += cmd->request_bufflen;
+ hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);
hostdata->pendingw++;
break;
case READ:
case READ_6:
case READ_10:
hostdata->time_read[cmd->device->id] -= (jiffies - hostdata->timebase);
- hostdata->bytes_read[cmd->device->id] += cmd->request_bufflen;
+ hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);
hostdata->pendingr++;
break;
}
/* Run the coroutine if it isn't already running. */
/* Kick off command processing */
- schedule_work(&hostdata->coroutine);
+ schedule_delayed_work(&hostdata->coroutine, 0);
return 0;
}
* host lock and called routines may take the isa dma lock.
*/
-static void NCR5380_main(void *p)
+static void NCR5380_main(struct work_struct *work)
{
- struct NCR5380_hostdata *hostdata = p;
+ struct NCR5380_hostdata *hostdata =
+ container_of(work, struct NCR5380_hostdata, coroutine.work);
struct Scsi_Host *instance = hostdata->host;
Scsi_Cmnd *tmp, *prev;
int done;
* NCR5380_intr - generic NCR5380 irq handler
* @irq: interrupt number
* @dev_id: device info
- * @regs: registers (unused)
*
* Handle interrupts, reestablishing I_T_L or I_T_L_Q nexuses
* from the disconnected queue, and restarting NCR5380_main()
* Locks: takes the needed instance locks
*/
-static irqreturn_t NCR5380_intr(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t NCR5380_intr(int dummy, void *dev_id)
{
NCR5380_local_declare();
- struct Scsi_Host *instance = (struct Scsi_Host *)dev_id;
+ struct Scsi_Host *instance = dev_id;
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
int done;
unsigned char basr;
unsigned long flags;
- dprintk(NDEBUG_INTR, ("scsi : NCR5380 irq %d triggered\n", irq));
+ dprintk(NDEBUG_INTR, ("scsi : NCR5380 irq %d triggered\n",
+ instance->irq));
do {
done = 1;
} /* if BASR_IRQ */
spin_unlock_irqrestore(instance->host_lock, flags);
if(!done)
- schedule_work(&hostdata->coroutine);
+ schedule_delayed_work(&hostdata->coroutine, 0);
} while (!done);
return IRQ_HANDLED;
}
case WRITE:
case WRITE_6:
case WRITE_10:
- hostdata->time_write[cmd->device->id] += (jiffies - hostdata->timebase);
+ hostdata->time_write[scmd_id(cmd)] += (jiffies - hostdata->timebase);
hostdata->pendingw--;
break;
case READ:
case READ_6:
case READ_10:
- hostdata->time_read[cmd->device->id] += (jiffies - hostdata->timebase);
+ hostdata->time_read[scmd_id(cmd)] += (jiffies - hostdata->timebase);
hostdata->pendingr--;
break;
}
* the host and target ID's on the SCSI bus.
*/
- NCR5380_write(OUTPUT_DATA_REG, (hostdata->id_mask | (1 << cmd->device->id)));
+ NCR5380_write(OUTPUT_DATA_REG, (hostdata->id_mask | (1 << scmd_id(cmd))));
/*
* Raise ATN while SEL is true before BSY goes false from arbitration,
udelay(1);
- dprintk(NDEBUG_SELECTION, ("scsi%d : selecting target %d\n", instance->host_no, cmd->device->id));
+ dprintk(NDEBUG_SELECTION, ("scsi%d : selecting target %d\n", instance->host_no, scmd_id(cmd)));
/*
* The SCSI specification calls for a 250 ms timeout for the actual
if (!(NCR5380_read(STATUS_REG) & SR_BSY)) {
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- if (hostdata->targets_present & (1 << cmd->device->id)) {
+ if (hostdata->targets_present & (1 << scmd_id(cmd))) {
printk(KERN_DEBUG "scsi%d : weirdness\n", instance->host_no);
if (hostdata->restart_select)
printk(KERN_DEBUG "\trestart select\n");
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
return 0;
}
- hostdata->targets_present |= (1 << cmd->device->id);
+ hostdata->targets_present |= (1 << scmd_id(cmd));
/*
* Since we followed the SCSI spec, and raised ATN while SEL
hostdata->connected = cmd;
hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
- if (cmd->SCp.ptr != (char *)cmd->sense_buffer) {
- initialize_SCp(cmd);
- }
+ initialize_SCp(cmd);
return 0;
sink = 1;
do_abort(instance);
cmd->result = DID_ERROR << 16;
- cmd->done(cmd);
+ cmd->scsi_done(cmd);
return;
#endif
/*
++cmd->SCp.buffer;
--cmd->SCp.buffers_residual;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
- cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
- cmd->SCp.buffer->offset;
+ cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
dprintk(NDEBUG_INFORMATION, ("scsi%d : %d bytes and %d buffers left\n", instance->host_no, cmd->SCp.this_residual, cmd->SCp.buffers_residual));
}
/*
* If the watchdog timer fires, all future accesses to this
* device will use the polled-IO.
*/
- printk("scsi%d : switching target %d lun %d to slow handshake\n", instance->host_no, cmd->device->id, cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd,
+ "switching to slow handshake\n");
cmd->device->borken = 1;
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
sink = 1;
do_abort(instance);
cmd->result = DID_ERROR << 16;
- cmd->done(cmd);
+ cmd->scsi_done(cmd);
/* XXX - need to source or sink data here, as appropriate */
} else
cmd->SCp.this_residual -= transfersize - len;
cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
#ifdef AUTOSENSE
+ if ((cmd->cmnd[0] == REQUEST_SENSE) &&
+ hostdata->ses.cmd_len) {
+ scsi_eh_restore_cmnd(cmd, &hostdata->ses);
+ hostdata->ses.cmd_len = 0 ;
+ }
+
if ((cmd->cmnd[0] != REQUEST_SENSE) && (status_byte(cmd->SCp.Status) == CHECK_CONDITION)) {
+ scsi_eh_prep_cmnd(cmd, &hostdata->ses, NULL, 0, ~0);
+
dprintk(NDEBUG_AUTOSENSE, ("scsi%d : performing request sense\n", instance->host_no));
- cmd->cmnd[0] = REQUEST_SENSE;
- cmd->cmnd[1] &= 0xe0;
- cmd->cmnd[2] = 0;
- cmd->cmnd[3] = 0;
- cmd->cmnd[4] = sizeof(cmd->sense_buffer);
- cmd->cmnd[5] = 0;
-
- cmd->SCp.buffer = NULL;
- cmd->SCp.buffers_residual = 0;
- cmd->SCp.ptr = (char *) cmd->sense_buffer;
- cmd->SCp.this_residual = sizeof(cmd->sense_buffer);
LIST(cmd, hostdata->issue_queue);
cmd->host_scribble = (unsigned char *)
* 3..length+1 arguments
*
* Start the extended message buffer with the EXTENDED_MESSAGE
- * byte, since scsi_print_msg() wants the whole thing.
+ * byte, since spi_print_msg() wants the whole thing.
*/
extended_msg[0] = EXTENDED_MESSAGE;
/* Accept first byte by clearing ACK */
default:
if (!tmp) {
printk("scsi%d: rejecting message ", instance->host_no);
- scsi_print_msg(extended_msg);
+ spi_print_msg(extended_msg);
printk("\n");
} else if (tmp != EXTENDED_MESSAGE)
- printk("scsi%d: rejecting unknown message %02x from target %d, lun %d\n", instance->host_no, tmp, cmd->device->id, cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd,
+ "rejecting unknown message %02x\n",tmp);
else
- printk("scsi%d: rejecting unknown extended message code %02x, length %d from target %d, lun %d\n", instance->host_no, extended_msg[1], extended_msg[0], cmd->device->id, cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd,
+ "rejecting unknown extended message code %02x, length %d\n", extended_msg[1], extended_msg[0]);
msgout = MESSAGE_REJECT;
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
if (!(msg[0] & 0x80)) {
printk(KERN_ERR "scsi%d : expecting IDENTIFY message, got ", instance->host_no);
- scsi_print_msg(msg);
+ spi_print_msg(msg);
abort = 1;
} else {
/* Accept message by clearing ACK */
#ifdef REAL_DMA
static void NCR5380_dma_complete(NCR5380_instance * instance) {
NCR5380_local_declare();
- struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata * instance->hostdata);
+ struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
int transferred;
NCR5380_setup(instance);
tmp->host_scribble = NULL;
tmp->result = DID_ABORT << 16;
dprintk(NDEBUG_ABORT, ("scsi%d : abort removed command from issue queue.\n", instance->host_no));
- tmp->done(tmp);
+ tmp->scsi_done(tmp);
return SUCCESS;
}
#if (NDEBUG & NDEBUG_ABORT)
*prev = (Scsi_Cmnd *) tmp->host_scribble;
tmp->host_scribble = NULL;
tmp->result = DID_ABORT << 16;
- tmp->done(tmp);
+ tmp->scsi_done(tmp);
return SUCCESS;
}
}
* Locks: host lock taken by caller
*/
-static int NCR5380_bus_reset(Scsi_Cmnd * cmd) {
+static int NCR5380_bus_reset(Scsi_Cmnd * cmd)
+{
+ struct Scsi_Host *instance = cmd->device->host;
+
NCR5380_local_declare();
- NCR5380_setup(cmd->device->host);
+ NCR5380_setup(instance);
+ NCR5380_print_status(instance);
+
+ spin_lock_irq(instance->host_lock);
+ do_reset(instance);
+ spin_unlock_irq(instance->host_lock);
- NCR5380_print_status(cmd->device->host);
- do_reset(cmd->device->host);
return SUCCESS;
}
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