[PATCH 6/6] ide: merge ide_hwgroup_t with ide_hwif_t

From: Bartlomiej Zolnierkiewicz
Date: Sat Dec 13 2008 - 18:42:28 EST

From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] ide: merge ide_hwgroup_t with ide_hwif_t

* Merge ide_hwgroup_t with ide_hwif_t.

* Cleanup init_irq() accordingly, then remove no longer needed
ide_remove_port_from_hwgroup() and ide_ports[].

* Remove now unused HWGROUP() macro.

While at it:

* ide_dump_ata_error() fixups

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
drivers/ide/alim15x3.c | 2
drivers/ide/au1xxx-ide.c | 6 +-
drivers/ide/icside.c | 2
drivers/ide/ide-atapi.c | 8 +--
drivers/ide/ide-cd.c | 16 ++----
drivers/ide/ide-dma-sff.c | 4 -
drivers/ide/ide-dma.c | 2
drivers/ide/ide-floppy.c | 2
drivers/ide/ide-io.c | 117 ++++++++++++++++++++++-----------------------
drivers/ide/ide-iops.c | 67 +++++++++++--------------
drivers/ide/ide-lib.c | 9 ++-
drivers/ide/ide-park.c | 16 +++---
drivers/ide/ide-pm.c | 2
drivers/ide/ide-probe.c | 87 +++++----------------------------
drivers/ide/ide-tape.c | 9 +--
drivers/ide/ide-taskfile.c | 4 -
drivers/ide/ide.c | 7 --
drivers/ide/pdc202xx_old.c | 2
drivers/ide/pmac.c | 2
drivers/ide/scc_pata.c | 4 -
drivers/ide/sgiioc4.c | 2
drivers/ide/tc86c001.c | 10 +--
drivers/ide/trm290.c | 2
drivers/ide/tx4939ide.c | 2
drivers/ide/umc8672.c | 13 ++---
include/linux/ide.h | 55 +++++++++------------
26 files changed, 187 insertions(+), 265 deletions(-)

Index: b/drivers/ide/alim15x3.c
===================================================================
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -198,7 +198,7 @@ static void ali_set_dma_mode(ide_drive_t
static int ali15x3_dma_setup(ide_drive_t *drive)
{
if (m5229_revision < 0xC2 && drive->media != ide_disk) {
- if (rq_data_dir(drive->hwif->hwgroup->rq))
+ if (rq_data_dir(drive->hwif->rq))
return 1; /* try PIO instead of DMA */
}
return ide_dma_setup(drive);
Index: b/drivers/ide/au1xxx-ide.c
===================================================================
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -213,7 +213,7 @@ static int auide_build_dmatable(ide_driv
{
int i, iswrite, count = 0;
ide_hwif_t *hwif = HWIF(drive);
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
_auide_hwif *ahwif = &auide_hwif;
struct scatterlist *sg;

@@ -309,8 +309,8 @@ static void auide_dma_exec_cmd(ide_drive
}

static int auide_dma_setup(ide_drive_t *drive)
-{
- struct request *rq = HWGROUP(drive)->rq;
+{
+ struct request *rq = drive->hwif->rq;

if (!auide_build_dmatable(drive)) {
ide_map_sg(drive, rq);
Index: b/drivers/ide/icside.c
===================================================================
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -312,7 +312,7 @@ static int icside_dma_setup(ide_drive_t
ide_hwif_t *hwif = HWIF(drive);
struct expansion_card *ec = ECARD_DEV(hwif->dev);
struct icside_state *state = ecard_get_drvdata(ec);
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int dma_mode;

if (rq_data_dir(rq))
Index: b/drivers/ide/ide-atapi.c
===================================================================
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -241,7 +241,7 @@ EXPORT_SYMBOL_GPL(ide_retry_pc);

int ide_cd_expiry(ide_drive_t *drive)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
unsigned long wait = 0;

debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
@@ -292,7 +292,7 @@ static ide_startstop_t ide_pc_intr(ide_d
{
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
xfer_func_t *xferfunc;
unsigned int timeout, temp;
@@ -489,7 +489,7 @@ static ide_startstop_t ide_transfer_pc(i
{
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
ide_expiry_t *expiry;
unsigned int timeout;
ide_startstop_t startstop;
@@ -560,7 +560,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t

if (dev_is_idecd(drive)) {
tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
- bcount = ide_cd_get_xferlen(hwif->hwgroup->rq);
+ bcount = ide_cd_get_xferlen(hwif->rq);
expiry = ide_cd_expiry;
} else {
tf_flags = IDE_TFLAG_OUT_DEVICE;
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -239,7 +239,7 @@ static void cdrom_queue_request_sense(id

static void cdrom_end_request(ide_drive_t *drive, int uptodate)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
int nsectors = rq->hard_cur_sectors;

ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, "
@@ -306,8 +306,7 @@ static void ide_dump_status_no_sense(ide
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ struct request *rq = hwif->rq;
int stat, err, sense_key;

/* check for errors */
@@ -502,7 +501,7 @@ end_request:
blkdev_dequeue_request(rq);
spin_unlock_irqrestore(q->queue_lock, flags);

- hwgroup->rq = NULL;
+ hwif->rq = NULL;

cdrom_queue_request_sense(drive, rq->sense, rq);
} else
@@ -728,7 +727,7 @@ static ide_startstop_t ide_cd_prepare_rw
*/
static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;

/* send the command to the drive and return */
return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr);
@@ -865,8 +864,7 @@ static int cdrom_newpc_intr_dummy_cb(str
static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ struct request *rq = hwif->rq;
xfer_func_t *xferfunc;
ide_expiry_t *expiry = NULL;
int dma_error = 0, dma, stat, thislen, uptodate = 0;
@@ -1072,7 +1070,7 @@ end_request:
if (blk_end_request(rq, 0, dlen))
BUG();

- hwgroup->rq = NULL;
+ hwif->rq = NULL;
} else {
if (!uptodate)
rq->cmd_flags |= REQ_FAILED;
@@ -1125,7 +1123,7 @@ static ide_startstop_t cdrom_start_rw(id

static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;

return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr);
}
Index: b/drivers/ide/ide-dma-sff.c
===================================================================
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -175,7 +175,7 @@ EXPORT_SYMBOL_GPL(ide_build_dmatable);
int ide_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int reading = rq_data_dir(rq) ? 0 : ATA_DMA_WR;
u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
u8 dma_stat;
@@ -240,7 +240,7 @@ static int dma_timer_expiry(ide_drive_t
if ((dma_stat & 0x18) == 0x18) /* BUSY Stupid Early Timer !! */
return WAIT_CMD;

- hwif->hwgroup->expiry = NULL; /* one free ride for now */
+ hwif->expiry = NULL; /* one free ride for now */

if (dma_stat & ATA_DMA_ERR) /* ERROR */
return -1;
Index: b/drivers/ide/ide-dma.c
===================================================================
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -96,7 +96,7 @@ ide_startstop_t ide_dma_intr(ide_drive_t

if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) {
if (!dma_stat) {
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;

task_end_request(drive, rq, stat);
return ide_stopped;
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -71,7 +71,7 @@
static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
{
struct ide_disk_obj *floppy = drive->driver_data;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
int error;

ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -88,7 +88,7 @@ static int __ide_end_request(ide_drive_t
ret = 0;

if (ret == 0 && dequeue)
- drive->hwif->hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;

return ret;
}
@@ -107,7 +107,7 @@ static int __ide_end_request(ide_drive_t
int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
{
unsigned int nr_bytes = nr_sectors << 9;
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;

if (!nr_bytes) {
if (blk_pc_request(rq))
@@ -160,8 +160,8 @@ EXPORT_SYMBOL_GPL(ide_end_dequeued_reque

void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
- struct request *rq = hwgroup->rq;
+ ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->rq;

if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *task = (ide_task_t *)rq->special;
@@ -186,7 +186,7 @@ void ide_end_drive_cmd (ide_drive_t *dri
return;
}

- hwgroup->rq = NULL;
+ hwif->rq = NULL;

rq->errors = err;

@@ -321,7 +321,8 @@ ide_startstop_t ide_error (ide_drive_t *

err = ide_dump_status(drive, msg, stat);

- if ((rq = HWGROUP(drive)->rq) == NULL)
+ rq = drive->hwif->rq;
+ if (rq == NULL)
return ide_stopped;

/* retry only "normal" I/O: */
@@ -654,7 +655,7 @@ kill_rq:
* @timeout: time to stall for (jiffies)
*
* ide_stall_queue() can be used by a drive to give excess bandwidth back
- * to the hwgroup by sleeping for timeout jiffies.
+ * to the port by sleeping for timeout jiffies.
*/

void ide_stall_queue (ide_drive_t *drive, unsigned long timeout)
@@ -689,14 +690,13 @@ static inline void ide_unlock_host(struc
}

/*
- * Issue a new request to a drive from hwgroup
+ * Issue a new request to a device.
*/
void do_ide_request(struct request_queue *q)
{
ide_drive_t *drive = q->queuedata;
ide_hwif_t *hwif = drive->hwif;
struct ide_host *host = hwif->host;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
struct request *rq;
ide_startstop_t startstop;

@@ -718,13 +718,13 @@ void do_ide_request(struct request_queue
if (ide_lock_host(host, hwif))
goto plug_device_2;

- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);

if (1) {
ide_hwif_t *prev_port;
repeat:
prev_port = hwif->host->cur_port;
- hwgroup->rq = NULL;
+ hwif->rq = NULL;

if (drive->dev_flags & IDE_DFLAG_SLEEPING) {
if (time_before(drive->sleep, jiffies)) {
@@ -739,15 +739,15 @@ repeat:
* set nIEN for previous port, drives in the
* quirk_list may not like intr setups/cleanups
*/
- if (prev_port && hwgroup->cur_dev->quirk_list == 0)
+ if (prev_port && hwif->cur_dev->quirk_list == 0)
prev_port->tp_ops->set_irq(prev_port, 0);

hwif->host->cur_port = hwif;
}
- hwgroup->cur_dev = drive;
+ hwif->cur_dev = drive;
drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED);

- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
spin_lock_irq(q->queue_lock);
/*
* we know that the queue isn't empty, but this can happen
@@ -755,7 +755,7 @@ repeat:
*/
rq = elv_next_request(drive->queue);
spin_unlock_irq(q->queue_lock);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);

if (!rq) {
ide_unlock_host(host);
@@ -783,22 +783,22 @@ repeat:
goto plug_device;
}

- hwgroup->rq = rq;
+ hwif->rq = rq;

- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
startstop = start_request(drive, rq);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);

if (startstop == ide_stopped)
goto repeat;
}
out:
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
spin_lock_irq(q->queue_lock);
return;

plug_device:
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
plug_device_2:
spin_lock_irq(q->queue_lock);

@@ -807,7 +807,7 @@ plug_device_2:
}

/*
- * un-busy the hwgroup etc, and clear any pending DMA status. we want to
+ * un-busy the port etc, and clear any pending DMA status. we want to
* retry the current request in pio mode instead of risking tossing it
* all away
*/
@@ -844,12 +844,11 @@ static ide_startstop_t ide_dma_timeout_r
* un-busy drive etc and make sure request is sane
*/

- rq = HWGROUP(drive)->rq;
-
+ rq = hwif->rq;
if (!rq)
goto out;

- HWGROUP(drive)->rq = NULL;
+ hwif->rq = NULL;

rq->errors = 0;

@@ -877,7 +876,7 @@ static void ide_plug_device(ide_drive_t

/**
* ide_timer_expiry - handle lack of an IDE interrupt
- * @data: timer callback magic (hwgroup)
+ * @data: timer callback magic (hwif)
*
* An IDE command has timed out before the expected drive return
* occurred. At this point we attempt to clean up the current
@@ -891,18 +890,18 @@ static void ide_plug_device(ide_drive_t

void ide_timer_expiry (unsigned long data)
{
- ide_hwgroup_t *hwgroup = (ide_hwgroup_t *) data;
+ ide_hwif_t *hwif = (ide_hwif_t *)data;
ide_drive_t *uninitialized_var(drive);
ide_handler_t *handler;
- ide_expiry_t *expiry;
unsigned long flags;
unsigned long wait = -1;
int plug_device = 0;

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
+
+ handler = hwif->handler;

- if (((handler = hwgroup->handler) == NULL) ||
- (hwgroup->req_gen != hwgroup->req_gen_timer)) {
+ if (handler == NULL || hwif->req_gen != hwif->req_gen_timer) {
/*
* Either a marginal timeout occurred
* (got the interrupt just as timer expired),
@@ -910,39 +909,39 @@ void ide_timer_expiry (unsigned long dat
* Either way, we don't really want to complain about anything.
*/
} else {
- drive = hwgroup->cur_dev;
+ drive = hwif->cur_dev;
if (!drive) {
printk(KERN_ERR "%s: ->cur_dev was NULL\n", __func__);
- hwgroup->handler = NULL;
+ hwif->handler = NULL;
} else {
- ide_hwif_t *hwif;
+ ide_expiry_t *expiry = hwif->expiry;
ide_startstop_t startstop = ide_stopped;

- if ((expiry = hwgroup->expiry) != NULL) {
+ if (expiry) {
/* continue */
if ((wait = expiry(drive)) > 0) {
/* reset timer */
- hwgroup->timer.expires = jiffies + wait;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ hwif->timer.expires = jiffies + wait;
+ hwif->req_gen_timer = hwif->req_gen;
+ add_timer(&hwif->timer);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return;
}
}
- hwgroup->handler = NULL;
+ hwif->handler = NULL;
/*
* We need to simulate a real interrupt when invoking
* the handler() function, which means we need to
* globally mask the specific IRQ:
*/
- spin_unlock(&hwgroup->lock);
+ spin_unlock(&hwif->lock);
hwif = HWIF(drive);
/* disable_irq_nosync ?? */
disable_irq(hwif->irq);
/* local CPU only,
* as if we were handling an interrupt */
local_irq_disable();
- if (hwgroup->polling) {
+ if (hwif->polling) {
startstop = handler(drive);
} else if (drive_is_ready(drive)) {
if (drive->waiting_for_dma)
@@ -958,7 +957,7 @@ void ide_timer_expiry (unsigned long dat
ide_error(drive, "irq timeout",
hwif->tp_ops->read_status(hwif));
}
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
enable_irq(hwif->irq);
if (startstop == ide_stopped) {
ide_unlock_host(hwif->host);
@@ -966,7 +965,7 @@ void ide_timer_expiry (unsigned long dat
}
}
}
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);

if (plug_device)
ide_plug_device(drive);
@@ -1030,7 +1029,7 @@ static void unexpected_intr(int irq, ide
* places
*
* hwif is the interface in the group currently performing
- * a command. hwgroup->cur_dev is the drive and hwgroup->handler is
+ * a command. hwif->cur_dev is the drive and hwif->handler is
* the IRQ handler to call. As we issue a command the handlers
* step through multiple states, reassigning the handler to the
* next step in the process. Unlike a smart SCSI controller IDE
@@ -1041,13 +1040,12 @@ static void unexpected_intr(int irq, ide
*
* The handler eventually returns ide_stopped to indicate the
* request completed. At this point we issue the next request
- * on the hwgroup and the process begins again.
+ * on the port and the process begins again.
*/
-
+
irqreturn_t ide_intr (int irq, void *dev_id)
{
ide_hwif_t *hwif = (ide_hwif_t *)dev_id;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
ide_drive_t *uninitialized_var(drive);
ide_handler_t *handler;
unsigned long flags;
@@ -1060,12 +1058,14 @@ irqreturn_t ide_intr (int irq, void *dev
goto out_early;
}

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);

if (!ide_ack_intr(hwif))
goto out;

- if ((handler = hwgroup->handler) == NULL || hwgroup->polling) {
+ handler = hwif->handler;
+
+ if (handler == NULL || hwif->polling) {
/*
* Not expecting an interrupt from this drive.
* That means this could be:
@@ -1102,7 +1102,7 @@ irqreturn_t ide_intr (int irq, void *dev
goto out;
}

- drive = hwgroup->cur_dev;
+ drive = hwif->cur_dev;
if (!drive) {
/*
* This should NEVER happen, and there isn't much
@@ -1123,10 +1123,10 @@ irqreturn_t ide_intr (int irq, void *dev
*/
goto out;

- hwgroup->handler = NULL;
- hwgroup->req_gen++;
- del_timer(&hwgroup->timer);
- spin_unlock(&hwgroup->lock);
+ hwif->handler = NULL;
+ hwif->req_gen++;
+ del_timer(&hwif->timer);
+ spin_unlock(&hwif->lock);

if (hwif->port_ops && hwif->port_ops->clear_irq)
hwif->port_ops->clear_irq(drive);
@@ -1137,7 +1137,7 @@ irqreturn_t ide_intr (int irq, void *dev
/* service this interrupt, may set handler for next interrupt */
startstop = handler(drive);

- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
/*
* Note that handler() may have set things up for another
* interrupt to occur soon, but it cannot happen until
@@ -1146,7 +1146,7 @@ irqreturn_t ide_intr (int irq, void *dev
* won't allow another of the same (on any CPU) until we return.
*/
if (startstop == ide_stopped) {
- if (hwgroup->handler == NULL) { /* paranoia */
+ if (hwif->handler == NULL) { /* paranoia */
ide_unlock_host(hwif->host);
plug_device = 1;
} else
@@ -1156,7 +1156,7 @@ irqreturn_t ide_intr (int irq, void *dev
out_handled:
irq_ret = IRQ_HANDLED;
out:
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
out_early:
if (plug_device)
ide_plug_device(drive);
@@ -1181,11 +1181,10 @@ out_early:

void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
struct request_queue *q = drive->queue;
unsigned long flags;

- hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;

spin_lock_irqsave(q->queue_lock, flags);
__elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0);
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -822,25 +822,25 @@ int ide_config_drive_speed(ide_drive_t *
static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
+ ide_hwif_t *hwif = drive->hwif;

- BUG_ON(hwgroup->handler);
- hwgroup->handler = handler;
- hwgroup->expiry = expiry;
- hwgroup->timer.expires = jiffies + timeout;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
+ BUG_ON(hwif->handler);
+ hwif->handler = handler;
+ hwif->expiry = expiry;
+ hwif->timer.expires = jiffies + timeout;
+ hwif->req_gen_timer = hwif->req_gen;
+ add_timer(&hwif->timer);
}

void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
unsigned int timeout, ide_expiry_t *expiry)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
unsigned long flags;

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}

EXPORT_SYMBOL(ide_set_handler);
@@ -863,10 +863,9 @@ void ide_execute_command(ide_drive_t *dr
unsigned timeout, ide_expiry_t *expiry)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
unsigned long flags;

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
hwif->tp_ops->exec_command(hwif, cmd);
/*
@@ -876,26 +875,25 @@ void ide_execute_command(ide_drive_t *dr
* FIXME: we could skip this delay with care on non shared devices
*/
ndelay(400);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_execute_command);

void ide_execute_pkt_cmd(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
unsigned long flags;

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
ndelay(400);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);

static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;

if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
ide_end_request(drive, err ? err : 1, 0);
@@ -913,7 +911,6 @@ static ide_startstop_t do_reset1 (ide_dr
static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
u8 stat;

SELECT_DRIVE(drive);
@@ -923,20 +920,20 @@ static ide_startstop_t atapi_reset_pollf
if (OK_STAT(stat, 0, ATA_BUSY))
printk("%s: ATAPI reset complete\n", drive->name);
else {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
}
/* end of polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
printk("%s: ATAPI reset timed-out, status=0x%02x\n",
drive->name, stat);
/* do it the old fashioned way */
return do_reset1(drive, 1);
}
/* done polling */
- hwgroup->polling = 0;
+ hwif->polling = 0;
ide_complete_drive_reset(drive, 0);
return ide_stopped;
}
@@ -968,7 +965,6 @@ static void ide_reset_report_error(ide_h
*/
static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
ide_hwif_t *hwif = HWIF(drive);
const struct ide_port_ops *port_ops = hwif->port_ops;
u8 tmp;
@@ -986,7 +982,7 @@ static ide_startstop_t reset_pollfunc (i
tmp = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(tmp, 0, ATA_BUSY)) {
- if (time_before(jiffies, hwgroup->poll_timeout)) {
+ if (time_before(jiffies, hwif->poll_timeout)) {
ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
/* continue polling */
return ide_started;
@@ -1007,7 +1003,7 @@ static ide_startstop_t reset_pollfunc (i
}
}
out:
- hwgroup->polling = 0; /* done polling */
+ hwif->polling = 0; /* done polling */
ide_complete_drive_reset(drive, err);
return ide_stopped;
}
@@ -1081,7 +1077,6 @@ static void pre_reset(ide_drive_t *drive
static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
struct ide_io_ports *io_ports = &hwif->io_ports;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_port_ops *port_ops;
@@ -1089,10 +1084,10 @@ static ide_startstop_t do_reset1 (ide_dr
unsigned int unit;
DEFINE_WAIT(wait);

- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);

/* We must not reset with running handlers */
- BUG_ON(hwgroup->handler != NULL);
+ BUG_ON(hwif->handler != NULL);

/* For an ATAPI device, first try an ATAPI SRST. */
if (drive->media != ide_disk && !do_not_try_atapi) {
@@ -1101,10 +1096,10 @@ static ide_startstop_t do_reset1 (ide_dr
udelay (20);
tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
ndelay(400);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}

@@ -1127,9 +1122,9 @@ static ide_startstop_t do_reset1 (ide_dr
if (time_before_eq(timeout, now))
break;

- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
timeout = schedule_timeout_uninterruptible(timeout - now);
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
} while (timeout);
finish_wait(&ide_park_wq, &wait);

@@ -1141,7 +1136,7 @@ static ide_startstop_t do_reset1 (ide_dr
pre_reset(&hwif->drives[unit]);

if (io_ports->ctl_addr == 0) {
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
ide_complete_drive_reset(drive, -ENXIO);
return ide_stopped;
}
@@ -1164,8 +1159,8 @@ static ide_startstop_t do_reset1 (ide_dr
tp_ops->set_irq(hwif, drive->quirk_list == 2);
/* more than enough time */
udelay(10);
- hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
- hwgroup->polling = 1;
+ hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+ hwif->polling = 1;
__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);

/*
@@ -1177,7 +1172,7 @@ static ide_startstop_t do_reset1 (ide_dr
if (port_ops && port_ops->resetproc)
port_ops->resetproc(drive);

- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
return ide_started;
}

Index: b/drivers/ide/ide-lib.c
===================================================================
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -273,7 +273,7 @@ int ide_set_xfer_rate(ide_drive_t *drive

static void ide_dump_opcode(ide_drive_t *drive)
{
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
ide_task_t *task = NULL;

if (!rq)
@@ -346,10 +346,13 @@ static void ide_dump_ata_error(ide_drive
printk(KERN_CONT "}");
if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
(err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
+ struct request *rq = drive->hwif->rq;
+
ide_dump_sector(drive);
- if (HWGROUP(drive) && HWGROUP(drive)->rq)
+
+ if (rq)
printk(KERN_CONT ", sector=%llu",
- (unsigned long long)HWGROUP(drive)->rq->sector);
+ (unsigned long long)rq->sector);
}
printk(KERN_CONT "\n");
}
Index: b/drivers/ide/ide-park.c
===================================================================
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -7,22 +7,22 @@ DECLARE_WAIT_QUEUE_HEAD(ide_park_wq);

static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout)
{
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
struct request_queue *q = drive->queue;
struct request *rq;
int rc;

timeout += jiffies;
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
if (drive->dev_flags & IDE_DFLAG_PARKED) {
int reset_timer = time_before(timeout, drive->sleep);
int start_queue = 0;

drive->sleep = timeout;
wake_up_all(&ide_park_wq);
- if (reset_timer && del_timer(&hwgroup->timer))
+ if (reset_timer && del_timer(&hwif->timer))
start_queue = 1;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);

if (start_queue) {
spin_lock_irq(q->queue_lock);
@@ -31,7 +31,7 @@ static void issue_park_cmd(ide_drive_t *
}
return;
}
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);

rq = blk_get_request(q, READ, __GFP_WAIT);
rq->cmd[0] = REQ_PARK_HEADS;
@@ -64,21 +64,21 @@ ssize_t ide_park_show(struct device *dev
char *buf)
{
ide_drive_t *drive = to_ide_device(dev);
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;
unsigned long now;
unsigned int msecs;

if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD)
return -EOPNOTSUPP;

- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
now = jiffies;
if (drive->dev_flags & IDE_DFLAG_PARKED &&
time_after(drive->sleep, now))
msecs = jiffies_to_msecs(drive->sleep - now);
else
msecs = 0;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);

return snprintf(buf, 20, "%u\n", msecs);
}
Index: b/drivers/ide/ide-pm.c
===================================================================
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -194,7 +194,7 @@ void ide_complete_pm_request(ide_drive_t
}
spin_unlock_irqrestore(q->queue_lock, flags);

- drive->hwif->hwgroup->rq = NULL;
+ drive->hwif->rq = NULL;

if (blk_end_request(rq, 0, 0))
BUG();
Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -949,79 +949,20 @@ static int ide_port_setup_devices(ide_hw
return j;
}

-static ide_hwif_t *ide_ports[MAX_HWIFS];
-
-void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
-{
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
-
- ide_ports[hwif->index] = NULL;
-
- spin_lock_irq(&hwgroup->lock);
- /* Free the hwgroup if we were the only member. */
- if (--hwgroup->port_count == 0)
- kfree(hwgroup);
- spin_unlock_irq(&hwgroup->lock);
-}
-
/*
- * This routine sets up the irq for an ide interface, and creates a new
- * hwgroup for the irq/hwif if none was previously assigned.
- *
- * Much of the code is for correctly detecting/handling irq sharing
- * and irq serialization situations. This is somewhat complex because
- * it handles static as well as dynamic (PCMCIA) IDE interfaces.
+ * This routine sets up the IRQ for an IDE interface.
*/
static int init_irq (ide_hwif_t *hwif)
{
struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned int index;
- ide_hwgroup_t *hwgroup;
- ide_hwif_t *match = NULL;
int sa = 0;

mutex_lock(&ide_cfg_mtx);
- hwif->hwgroup = NULL;
-
- for (index = 0; index < MAX_HWIFS; index++) {
- ide_hwif_t *h = ide_ports[index];
-
- if (h && h->hwgroup) { /* scan only initialized ports */
- if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) {
- if (hwif->host == h->host)
- match = h;
- }
- }
- }
-
- /*
- * If we are still without a hwgroup, then form a new one
- */
- if (match) {
- hwgroup = match->hwgroup;
- hwif->hwgroup = hwgroup;
-
- spin_lock_irq(&hwgroup->lock);
- hwgroup->port_count++;
- spin_unlock_irq(&hwgroup->lock);
- } else {
- hwgroup = kmalloc_node(sizeof(*hwgroup), GFP_KERNEL|__GFP_ZERO,
- hwif_to_node(hwif));
- if (hwgroup == NULL)
- goto out_up;
-
- spin_lock_init(&hwgroup->lock);
+ spin_lock_init(&hwif->lock);

- hwif->hwgroup = hwgroup;
-
- hwgroup->port_count = 1;
-
- init_timer(&hwgroup->timer);
- hwgroup->timer.function = &ide_timer_expiry;
- hwgroup->timer.data = (unsigned long) hwgroup;
- }
-
- ide_ports[hwif->index] = hwif;
+ init_timer(&hwif->timer);
+ hwif->timer.function = &ide_timer_expiry;
+ hwif->timer.data = (unsigned long)hwif;

#if defined(__mc68000__)
sa = IRQF_SHARED;
@@ -1034,7 +975,7 @@ static int init_irq (ide_hwif_t *hwif)
hwif->tp_ops->set_irq(hwif, 1);

if (request_irq(hwif->irq, &ide_intr, sa, hwif->name, hwif))
- goto out_unlink;
+ goto out_up;

if (!hwif->rqsize) {
if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
@@ -1052,14 +993,12 @@ static int init_irq (ide_hwif_t *hwif)
printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name,
io_ports->data_addr, hwif->irq);
#endif /* __mc68000__ */
- if (match)
- printk(KERN_CONT " (serialized with %s)", match->name);
+ if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE)
+ printk(KERN_CONT " (serialized)");
printk(KERN_CONT "\n");

mutex_unlock(&ide_cfg_mtx);
return 0;
-out_unlink:
- ide_remove_port_from_hwgroup(hwif);
out_up:
mutex_unlock(&ide_cfg_mtx);
return 1;
@@ -1140,20 +1079,20 @@ EXPORT_SYMBOL_GPL(ide_init_disk);
static void drive_release_dev (struct device *dev)
{
ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
- ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+ ide_hwif_t *hwif = drive->hwif;

ide_proc_unregister_device(drive);

- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
kfree(drive->id);
drive->id = NULL;
drive->dev_flags &= ~IDE_DFLAG_PRESENT;
/* Messed up locking ... */
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);
blk_cleanup_queue(drive->queue);
- spin_lock_irq(&hwgroup->lock);
+ spin_lock_irq(&hwif->lock);
drive->queue = NULL;
- spin_unlock_irq(&hwgroup->lock);
+ spin_unlock_irq(&hwif->lock);

complete(&drive->gendev_rel_comp);
}
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -479,7 +479,7 @@ static void ide_tape_kfree_buffer(idetap

static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
idetape_tape_t *tape = drive->driver_data;
unsigned long flags;
int error;
@@ -531,7 +531,7 @@ static void ide_tape_callback(ide_drive_
printk(KERN_ERR "ide-tape: Error in REQUEST SENSE "
"itself - Aborting request!\n");
} else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
- struct request *rq = drive->hwif->hwgroup->rq;
+ struct request *rq = drive->hwif->rq;
int blocks = pc->xferred / tape->blk_size;

tape->avg_size += blocks * tape->blk_size;
@@ -576,7 +576,7 @@ static void ide_tape_callback(ide_drive_

/*
* Postpone the current request so that ide.c will be able to service requests
- * from another device on the same hwgroup while we are polling for DSC.
+ * from another device on the same port while we are polling for DSC.
*/
static void idetape_postpone_request(ide_drive_t *drive)
{
@@ -584,7 +584,8 @@ static void idetape_postpone_request(ide

debug_log(DBG_PROCS, "Enter %s\n", __func__);

- tape->postponed_rq = HWGROUP(drive)->rq;
+ tape->postponed_rq = drive->hwif->rq;
+
ide_stall_queue(drive, tape->dsc_poll_freq);
}

Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -361,7 +361,7 @@ static ide_startstop_t task_in_unexpecte
static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
u8 stat = hwif->tp_ops->read_status(hwif);

/* Error? */
@@ -395,7 +395,7 @@ static ide_startstop_t task_in_intr(ide_
static ide_startstop_t task_out_intr (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
u8 stat = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -189,8 +189,6 @@ void ide_unregister(ide_hwif_t *hwif)

free_irq(hwif->irq, hwif);

- ide_remove_port_from_hwgroup(hwif);
-
device_unregister(hwif->portdev);
device_unregister(&hwif->gendev);
wait_for_completion(&hwif->gendev_rel_comp);
@@ -315,7 +313,6 @@ static int set_pio_mode_abuse(ide_hwif_t
static int set_pio_mode(ide_drive_t *drive, int arg)
{
ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
const struct ide_port_ops *port_ops = hwif->port_ops;

if (arg < 0 || arg > 255)
@@ -330,9 +327,9 @@ static int set_pio_mode(ide_drive_t *dri
unsigned long flags;

/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&hwgroup->lock, flags);
+ spin_lock_irqsave(&hwif->lock, flags);
port_ops->set_pio_mode(drive, arg);
- spin_unlock_irqrestore(&hwgroup->lock, flags);
+ spin_unlock_irqrestore(&hwif->lock, flags);
} else
port_ops->set_pio_mode(drive, arg);
} else {
Index: b/drivers/ide/pdc202xx_old.c
===================================================================
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -169,8 +169,8 @@ static void pdc202xx_dma_start(ide_drive
if (drive->current_speed > XFER_UDMA_2)
pdc_old_enable_66MHz_clock(drive->hwif);
if (drive->media != ide_disk || (drive->dev_flags & IDE_DFLAG_LBA48)) {
- struct request *rq = HWGROUP(drive)->rq;
ide_hwif_t *hwif = HWIF(drive);
+ struct request *rq = hwif->rq;
unsigned long high_16 = hwif->extra_base - 16;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u32 word_count = 0;
Index: b/drivers/ide/pmac.c
===================================================================
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1516,7 +1516,7 @@ pmac_ide_dma_setup(ide_drive_t *drive)
ide_hwif_t *hwif = HWIF(drive);
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);

if (!pmac_ide_build_dmatable(drive, rq)) {
Index: b/drivers/ide/scc_pata.c
===================================================================
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -316,7 +316,7 @@ static void scc_dma_host_set(ide_drive_t
static int scc_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
unsigned int reading;
u8 dma_stat;

@@ -405,7 +405,7 @@ static int scc_dma_end(ide_drive_t *driv
drive->name);
data_loss = 1;
if (retry++) {
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = hwif->rq;
int unit;
/* ERROR_RESET and drive->crc_count are needed
* to reduce DMA transfer mode in retry process.
Index: b/drivers/ide/sgiioc4.c
===================================================================
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -492,7 +492,7 @@ use_pio_instead:

static int sgiioc4_dma_setup(ide_drive_t *drive)
{
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = drive->hwif->rq;
unsigned int count = 0;
int ddir;

Index: b/drivers/ide/tc86c001.c
===================================================================
--- a/drivers/ide/tc86c001.c
+++ b/drivers/ide/tc86c001.c
@@ -64,11 +64,10 @@ static int tc86c001_timer_expiry(ide_dri
{
ide_hwif_t *hwif = HWIF(drive);
ide_expiry_t *expiry = ide_get_hwifdata(hwif);
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS);

/* Restore a higher level driver's expiry handler first. */
- hwgroup->expiry = expiry;
+ hwif->expiry = expiry;

if ((dma_stat & 5) == 1) { /* DMA active and no interrupt */
unsigned long sc_base = hwif->config_data;
@@ -111,10 +110,9 @@ static int tc86c001_timer_expiry(ide_dri
static void tc86c001_dma_start(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
unsigned long sc_base = hwif->config_data;
unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04);
- unsigned long nsectors = hwgroup->rq->nr_sectors;
+ unsigned long nsectors = hwif->rq->nr_sectors;

/*
* We have to manually load the sector count and size into
@@ -125,8 +123,8 @@ static void tc86c001_dma_start(ide_drive
outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */

/* Install our timeout expiry hook, saving the current handler... */
- ide_set_hwifdata(hwif, hwgroup->expiry);
- hwgroup->expiry = &tc86c001_timer_expiry;
+ ide_set_hwifdata(hwif, hwif->expiry);
+ hwif->expiry = &tc86c001_timer_expiry;

ide_dma_start(drive);
}
Index: b/drivers/ide/trm290.c
===================================================================
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -184,7 +184,7 @@ static void trm290_dma_exec_cmd(ide_driv
static int trm290_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
unsigned int count, rw;

if (rq_data_dir(rq)) {
Index: b/drivers/ide/tx4939ide.c
===================================================================
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -287,7 +287,7 @@ static int tx4939ide_dma_setup(ide_drive
{
ide_hwif_t *hwif = drive->hwif;
void __iomem *base = TX4939IDE_BASE(hwif);
- struct request *rq = hwif->hwgroup->rq;
+ struct request *rq = hwif->rq;
u8 reading;
int nent;

Index: b/drivers/ide/umc8672.c
===================================================================
--- a/drivers/ide/umc8672.c
+++ b/drivers/ide/umc8672.c
@@ -106,22 +106,21 @@ static void umc_set_speeds(u8 speeds[])

static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- ide_hwif_t *hwif = drive->hwif;
- ide_hwgroup_t *mate_hwgroup = hwif->mate ? hwif->mate->hwgroup : NULL;
+ ide_hwif_t *hwif = drive->hwif, *mate = hwif->mate;
unsigned long uninitialized_var(flags);

printk("%s: setting umc8672 to PIO mode%d (speed %d)\n",
drive->name, pio, pio_to_umc[pio]);
- if (mate_hwgroup)
- spin_lock_irqsave(&mate_hwgroup->lock, flags);
- if (mate_hwgroup && mate_hwgroup->handler) {
+ if (mate)
+ spin_lock_irqsave(&mate->lock, flags);
+ if (mate && mate->handler) {
printk(KERN_ERR "umc8672: other interface is busy: exiting tune_umc()\n");
} else {
current_speeds[drive->name[2] - 'a'] = pio_to_umc[pio];
umc_set_speeds(current_speeds);
}
- if (mate_hwgroup)
- spin_unlock_irqrestore(&mate_hwgroup->lock, flags);
+ if (mate)
+ spin_unlock_irqrestore(&mate->lock, flags);
}

static const struct ide_port_ops umc8672_port_ops = {
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -42,7 +42,6 @@ typedef unsigned char byte; /* used ever
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */

#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
-#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))

/*
* Definitions for accessing IDE controller registers
@@ -750,7 +749,6 @@ struct ide_host;

typedef struct hwif_s {
struct hwif_s *mate; /* other hwif from same PCI chip */
- struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */

struct ide_host *host;
@@ -839,6 +837,30 @@ typedef struct hwif_s {
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_hwif_link *acpidata;
#endif
+
+ /* IRQ handler, if active */
+ ide_startstop_t (*handler)(ide_drive_t *);
+
+ /* BOOL: polling active & poll_timeout field valid */
+ unsigned int polling : 1;
+
+ /* current drive */
+ ide_drive_t *cur_dev;
+
+ /* current request */
+ struct request *rq;
+
+ /* failsafe timer */
+ struct timer_list timer;
+ /* timeout value during long polls */
+ unsigned long poll_timeout;
+ /* queried upon timeouts */
+ int (*expiry)(ide_drive_t *);
+
+ int req_gen;
+ int req_gen_timer;
+
+ spinlock_t lock;
} ____cacheline_internodealigned_in_smp ide_hwif_t;

#define MAX_HOST_PORTS 4
@@ -867,34 +889,6 @@ typedef int (ide_expiry_t)(ide_drive_t *
/* used by ide-cd, ide-floppy, etc. */
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);

-typedef struct hwgroup_s {
- /* irq handler, if active */
- ide_startstop_t (*handler)(ide_drive_t *);
-
- /* BOOL: polling active & poll_timeout field valid */
- unsigned int polling : 1;
-
- /* current drive */
- ide_drive_t *cur_dev;
-
- /* current request */
- struct request *rq;
-
- /* failsafe timer */
- struct timer_list timer;
- /* timeout value during long polls */
- unsigned long poll_timeout;
- /* queried upon timeouts */
- int (*expiry)(ide_drive_t *);
-
- int req_gen;
- int req_gen_timer;
-
- spinlock_t lock;
-
- int port_count;
-} ide_hwgroup_t;
-
typedef struct ide_driver_s ide_driver_t;

extern struct mutex ide_setting_mtx;
@@ -1511,7 +1505,6 @@ static inline void ide_acpi_port_init_de
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif

-void ide_remove_port_from_hwgroup(ide_hwif_t *);
void ide_unregister(ide_hwif_t *);

void ide_register_region(struct gendisk *);
--
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