struct gendisk *disk;
struct Scsi_Host *host;
- struct ide_atapi_pc *pc; /* Current packet command */
unsigned long transform; /* SCSI cmd translation layer */
unsigned long log; /* log flags */
} idescsi_scsi_t;
return scsihost_to_idescsi(ide_drive->driver_data);
}
-/*
- * PIO data transfer routine using the scatter gather table.
- */
-static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
- unsigned int bcount, int write)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_tp_ops *tp_ops = hwif->tp_ops;
- xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data;
- struct scatterlist *sg = pc->sg;
- char *buf;
- int count;
-
- while (bcount) {
- count = min(sg->length - pc->b_count, bcount);
- if (PageHighMem(sg_page(sg))) {
- unsigned long flags;
-
- local_irq_save(flags);
- buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
- xf(drive, NULL, buf + pc->b_count, count);
- kunmap_atomic(buf - sg->offset, KM_IRQ0);
- local_irq_restore(flags);
- } else {
- buf = sg_virt(sg);
- xf(drive, NULL, buf + pc->b_count, count);
- }
- bcount -= count; pc->b_count += count;
- if (pc->b_count == sg->length) {
- if (!--pc->sg_cnt)
- break;
- pc->sg = sg = sg_next(sg);
- pc->b_count = 0;
- }
- }
-
- if (bcount) {
- printk(KERN_ERR "%s: scatter gather table too small, %s\n",
- drive->name, write ? "padding with zeros"
- : "discarding data");
- ide_pad_transfer(drive, write, bcount);
- }
-}
-
static void ide_scsi_hex_dump(u8 *data, int len)
{
print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0);
static int idescsi_end_request(ide_drive_t *, int, int);
-static void ide_scsi_callback(ide_drive_t *drive)
+static void ide_scsi_callback(ide_drive_t *drive, int dsc)
{
idescsi_scsi_t *scsi = drive_to_idescsi(drive);
- struct ide_atapi_pc *pc = scsi->pc;
+ struct ide_atapi_pc *pc = drive->pc;
if (pc->flags & PC_FLAG_TIMEDOUT)
debug_log("%s: got timed out packet %lu at %lu\n", __func__,
spin_unlock_irqrestore(host->host_lock, flags);
kfree(pc);
blk_put_request(rq);
- scsi->pc = NULL;
+ drive->pc = NULL;
return 0;
}
-static inline unsigned long get_timeout(struct ide_atapi_pc *pc)
-{
- return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies);
-}
-
-static int idescsi_expiry(ide_drive_t *drive)
-{
- idescsi_scsi_t *scsi = drive_to_idescsi(drive);
- struct ide_atapi_pc *pc = scsi->pc;
-
- debug_log("%s called for %lu at %lu\n", __func__,
- pc->scsi_cmd->serial_number, jiffies);
-
- pc->flags |= PC_FLAG_TIMEDOUT;
-
- return 0; /* we do not want the ide subsystem to retry */
-}
-
/*
* Our interrupt handler.
*/
static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
{
- idescsi_scsi_t *scsi = drive_to_idescsi(drive);
- struct ide_atapi_pc *pc = scsi->pc;
-
- return ide_pc_intr(drive, pc, idescsi_pc_intr, get_timeout(pc),
- idescsi_expiry, NULL, NULL, NULL,
- ide_scsi_io_buffers);
+ return ide_pc_intr(drive, idescsi_pc_intr, NULL, NULL, ide_io_buffers);
}
static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
{
- idescsi_scsi_t *scsi = drive_to_idescsi(drive);
-
- return ide_transfer_pc(drive, scsi->pc, idescsi_pc_intr,
- get_timeout(scsi->pc), idescsi_expiry);
+ return ide_transfer_pc(drive, idescsi_pc_intr,
+ ide_scsi_get_timeout(drive->pc),
+ ide_scsi_expiry);
}
static inline int idescsi_set_direction(struct ide_atapi_pc *pc)
static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
struct ide_atapi_pc *pc)
{
- idescsi_scsi_t *scsi = drive_to_idescsi(drive);
-
/* Set the current packet command */
- scsi->pc = pc;
+ drive->pc = pc;
- return ide_issue_pc(drive, pc, idescsi_transfer_pc,
- get_timeout(pc), idescsi_expiry);
+ return ide_issue_pc(drive, idescsi_transfer_pc,
+ ide_scsi_get_timeout(pc), ide_scsi_expiry);
}
/*
return 0; \
}
-#define ide_scsi_devset_rw(_name, _min, _max, _field) \
+#define ide_scsi_devset_rw_field(_name, _field) \
ide_scsi_devset_get(_name, _field); \
ide_scsi_devset_set(_name, _field); \
-IDE_DEVSET(_name, S_RW, _min, _max, get_##_name, set_##_name)
-
-ide_devset_rw(bios_cyl, 0, 1023, bios_cyl);
-ide_devset_rw(bios_head, 0, 255, bios_head);
-ide_devset_rw(bios_sect, 0, 63, bios_sect);
-
-ide_scsi_devset_rw(transform, 0, 3, transform);
-ide_scsi_devset_rw(log, 0, 1, log);
-
-static const struct ide_devset *idescsi_settings[] = {
- &ide_devset_bios_cyl,
- &ide_devset_bios_head,
- &ide_devset_bios_sect,
- &ide_devset_log,
- &ide_devset_transform,
- NULL
+IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name);
+
+ide_devset_rw_field(bios_cyl, bios_cyl);
+ide_devset_rw_field(bios_head, bios_head);
+ide_devset_rw_field(bios_sect, bios_sect);
+
+ide_scsi_devset_rw_field(transform, transform);
+ide_scsi_devset_rw_field(log, log);
+
+static const struct ide_proc_devset idescsi_settings[] = {
+ IDE_PROC_DEVSET(bios_cyl, 0, 1023),
+ IDE_PROC_DEVSET(bios_head, 0, 255),
+ IDE_PROC_DEVSET(bios_sect, 0, 63),
+ IDE_PROC_DEVSET(log, 0, 1),
+ IDE_PROC_DEVSET(transform, 0, 3),
+ { 0 },
};
#endif
int busy;
int ret = FAILED;
+ struct ide_atapi_pc *pc;
+
/* In idescsi_eh_abort we try to gently pry our command from the ide subsystem */
if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
spin_lock_irq(&ide_lock);
/* If there is no pc running we're done (our interrupt took care of it) */
- if (!scsi->pc) {
+ pc = drive->pc;
+ if (pc == NULL) {
ret = SUCCESS;
goto ide_unlock;
}
/* It's somewhere in flight. Does ide subsystem agree? */
- if (scsi->pc->scsi_cmd->serial_number == cmd->serial_number && !busy &&
- elv_queue_empty(drive->queue) && HWGROUP(drive)->rq != scsi->pc->rq) {
+ if (pc->scsi_cmd->serial_number == cmd->serial_number && !busy &&
+ elv_queue_empty(drive->queue) && HWGROUP(drive)->rq != pc->rq) {
/*
* FIXME - not sure this condition can ever occur
*/
printk (KERN_ERR "ide-scsi: cmd aborted!\n");
- if (blk_sense_request(scsi->pc->rq))
- kfree(scsi->pc->buf);
+ if (blk_sense_request(pc->rq))
+ kfree(pc->buf);
/* we need to call blk_put_request twice. */
- blk_put_request(scsi->pc->rq);
- blk_put_request(scsi->pc->rq);
- kfree(scsi->pc);
- scsi->pc = NULL;
+ blk_put_request(pc->rq);
+ blk_put_request(pc->rq);
+ kfree(pc);
+ drive->pc = NULL;
ret = SUCCESS;
}
int ready = 0;
int ret = SUCCESS;
+ struct ide_atapi_pc *pc;
+
/* In idescsi_eh_reset we forcefully remove the command from the ide subsystem and reset the device. */
if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
spin_lock_irq(cmd->device->host->host_lock);
spin_lock(&ide_lock);
- if (!scsi->pc || (req = scsi->pc->rq) != HWGROUP(drive)->rq || !HWGROUP(drive)->handler) {
+ pc = drive->pc;
+
+ if (pc == NULL || (req = pc->rq) != HWGROUP(drive)->rq || !HWGROUP(drive)->handler) {
printk (KERN_WARNING "ide-scsi: No active request in idescsi_eh_reset\n");
spin_unlock(&ide_lock);
spin_unlock_irq(cmd->device->host->host_lock);
if (__blk_end_request(req, -EIO, 0))
BUG();
if (blk_sense_request(req))
- kfree(scsi->pc->buf);
- kfree(scsi->pc);
- scsi->pc = NULL;
+ kfree(pc->buf);
+ kfree(pc);
+ drive->pc = NULL;
blk_put_request(req);
/* now nuke the drive queue */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff