Alright, I don't care enough about that 1 sector to argue.
> Note that it should be done after setting queue max sectors to 256,
> because not only ide-disk depends on this code:
>
> max_sectors = 256;
>
> (...)
>
> /*
> * Added "< max_sectors" check for safety if it will
> * be called again later with rq->size = 65536.
> * I don't believe it ever is.
> */
> if (hwif->rqsize < max_sectors)
> max_sectors = hwif->rqsize;
> blk_queue_max_sectors(q, max_sectors);
> if (!hwif->rqsize)
> hwif->rqsize = hwif->addressing ? 65536 : 256;
You have the logic reversed here, the hwif and drive addressing are
reversed. Yeah, it's convoluted, dunno who thought that logic up...
> > > > Patch also misses updates for many uses of drive->addressing
> > > > (in ide.c, ide-io.c, icside.c, ide-tcq.c and even in ide-taskfile.c).
> > >
> > > Hmm bad grep, weird.
> >
> > ide.c: ide_dump_status(). this is an ugly one, but to me it already
> > looks correct. we are not throwing away any info by not reading the high
> > bits.
>
> It should check for rq_lba48(rq) || task->addressing.
> After taskfile IO switch it will be checking for task->addressing only.
This is really ugly, but it has to look like that until you make the
global taskfile changes...
> > ide-io.c, ide-tcq.c, icside.c: indeed, missed these.
> >
> > > > Jens, I like the general idea of the patch, but it needs some more work.
> > > > Linus, please don't apply for now.
> > >
> > > Agree, I'll update the patch to suit your concerns tomorrow.
> >
> > Apart from the pdc202xx_old part, I think I've addressed all of your
> > concerns in this patch.
>
> Nope ;-), please move setting of hwif->rqsize from setup-pci.c to where
> it belongs, ide_init_queue() in ide-probe.c.
So how's this?
# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.1119 -> 1.1121
# drivers/ide/ide-taskfile.c 1.16 -> 1.17
# drivers/ide/ppc/pmac.c 1.10 -> 1.11
# drivers/ide/ide.c 1.59 -> 1.60
# include/linux/ide.h 1.48 -> 1.49
# drivers/ide/setup-pci.c 1.13 -> 1.15
# drivers/ide/ide-disk.c 1.40 -> 1.41
# drivers/ide/arm/icside.c 1.6 -> 1.7
# drivers/ide/ide-dma.c 1.13 -> 1.14
# drivers/ide/ide-probe.c 1.41 -> 1.42
# drivers/ide/ide-io.c 1.8 -> 1.9
# drivers/ide/pci/pdc202xx_old.c 1.13 -> 1.14
# drivers/ide/ide-tcq.c 1.2 -> 1.3
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/05/08 axboe@smithers.home.kernel.dk 1.1120
# Proper 48-bit lba support
# --------------------------------------------
# 03/05/08 axboe@smithers.home.kernel.dk 1.1121
# IDE 48-bit adjustments
# --------------------------------------------
#
diff -Nru a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
--- a/drivers/ide/arm/icside.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/arm/icside.c Thu May 8 13:58:42 2003
@@ -657,7 +657,7 @@
if (rq->flags & REQ_DRIVE_TASKFILE) {
ide_task_t *args = rq->special;
cmd = args->tfRegister[IDE_COMMAND_OFFSET];
- } else if (drive->addressing == 1) {
+ } else if (rq_lba48(rq)) {
cmd = WIN_READDMA_EXT;
} else {
cmd = WIN_READDMA;
@@ -698,7 +698,7 @@
if (rq->flags & REQ_DRIVE_TASKFILE) {
ide_task_t *args = rq->special;
cmd = args->tfRegister[IDE_COMMAND_OFFSET];
- } else if (drive->addressing == 1) {
+ } else if (rq_lba48(rq)) {
cmd = WIN_WRITEDMA_EXT;
} else {
cmd = WIN_WRITEDMA;
diff -Nru a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
--- a/drivers/ide/ide-disk.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-disk.c Thu May 8 13:58:42 2003
@@ -358,7 +358,7 @@
static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, sector_t block)
{
ide_hwif_t *hwif = HWIF(drive);
- u8 lba48 = (drive->addressing == 1) ? 1 : 0;
+ u8 lba48 = rq_lba48(rq);
task_ioreg_t command = WIN_NOP;
ata_nsector_t nsectors;
@@ -383,7 +383,7 @@
hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
if (drive->select.b.lba) {
- if (drive->addressing == 1) {
+ if (lba48) {
task_ioreg_t tasklets[10];
if (blk_rq_tagged(rq)) {
@@ -593,7 +593,7 @@
return ide_started;
}
- if (drive->addressing == 1) /* 48-bit LBA */
+ if (rq_lba48(rq)) /* 48-bit LBA */
return lba_48_rw_disk(drive, rq, (unsigned long long) block);
if (drive->select.b.lba) /* 28-bit LBA */
return lba_28_rw_disk(drive, rq, (unsigned long) block);
@@ -602,9 +602,10 @@
return chs_rw_disk(drive, rq, (unsigned long) block);
}
-static task_ioreg_t get_command (ide_drive_t *drive, int cmd)
+static task_ioreg_t get_command (ide_drive_t *drive, struct request *rq)
{
- int lba48bit = (drive->addressing == 1) ? 1 : 0;
+ int lba48bit = rq_lba48(rq);
+ int cmd = rq_data_dir(rq);
if ((cmd == READ) && drive->using_tcq)
return lba48bit ? WIN_READDMA_QUEUED_EXT : WIN_READDMA_QUEUED;
@@ -631,7 +632,7 @@
ide_task_t args;
int sectors;
ata_nsector_t nsectors;
- task_ioreg_t command = get_command(drive, rq_data_dir(rq));
+ task_ioreg_t command = get_command(drive, rq);
unsigned int track = (block / drive->sect);
unsigned int sect = (block % drive->sect) + 1;
unsigned int head = (track % drive->head);
@@ -663,6 +664,7 @@
args.tfRegister[IDE_SELECT_OFFSET] |= drive->select.all;
args.tfRegister[IDE_COMMAND_OFFSET] = command;
args.command_type = ide_cmd_type_parser(&args);
+ args.addressing = 0;
args.rq = (struct request *) rq;
rq->special = (ide_task_t *)&args;
return do_rw_taskfile(drive, &args);
@@ -673,7 +675,7 @@
ide_task_t args;
int sectors;
ata_nsector_t nsectors;
- task_ioreg_t command = get_command(drive, rq_data_dir(rq));
+ task_ioreg_t command = get_command(drive, rq);
nsectors.all = (u16) rq->nr_sectors;
@@ -701,6 +703,7 @@
args.tfRegister[IDE_SELECT_OFFSET] |= drive->select.all;
args.tfRegister[IDE_COMMAND_OFFSET] = command;
args.command_type = ide_cmd_type_parser(&args);
+ args.addressing = 0;
args.rq = (struct request *) rq;
rq->special = (ide_task_t *)&args;
return do_rw_taskfile(drive, &args);
@@ -717,7 +720,7 @@
ide_task_t args;
int sectors;
ata_nsector_t nsectors;
- task_ioreg_t command = get_command(drive, rq_data_dir(rq));
+ task_ioreg_t command = get_command(drive, rq);
nsectors.all = (u16) rq->nr_sectors;
@@ -753,6 +756,7 @@
args.hobRegister[IDE_SELECT_OFFSET_HOB] = drive->select.all;
args.hobRegister[IDE_CONTROL_OFFSET_HOB]= (drive->ctl|0x80);
args.command_type = ide_cmd_type_parser(&args);
+ args.addressing = 1;
args.rq = (struct request *) rq;
rq->special = (ide_task_t *)&args;
return do_rw_taskfile(drive, &args);
@@ -1479,7 +1483,7 @@
static int set_lba_addressing (ide_drive_t *drive, int arg)
{
- return (probe_lba_addressing(drive, arg));
+ return probe_lba_addressing(drive, arg);
}
static void idedisk_add_settings(ide_drive_t *drive)
@@ -1565,6 +1569,18 @@
}
(void) probe_lba_addressing(drive, 1);
+
+ if (drive->addressing == 1) {
+ ide_hwif_t *hwif = HWIF(drive);
+ int max_s = 2048;
+
+ if (max_s > hwif->rqsize)
+ max_s = hwif->rqsize;
+
+ blk_queue_max_sectors(&drive->queue, max_s);
+ }
+
+ printk("%s: max request size: %dKiB\n", drive->name, drive->queue.max_sectors / 2);
/* Extract geometry if we did not already have one for the drive */
if (!drive->cyl || !drive->head || !drive->sect) {
diff -Nru a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
--- a/drivers/ide/ide-dma.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-dma.c Thu May 8 13:58:42 2003
@@ -653,7 +653,7 @@
ide_hwif_t *hwif = HWIF(drive);
struct request *rq = HWGROUP(drive)->rq;
unsigned int reading = 1 << 3;
- u8 lba48 = (drive->addressing == 1) ? 1 : 0;
+ u8 lba48 = rq_lba48(rq);
task_ioreg_t command = WIN_NOP;
/* try pio */
@@ -685,7 +685,7 @@
ide_hwif_t *hwif = HWIF(drive);
struct request *rq = HWGROUP(drive)->rq;
unsigned int reading = 0;
- u8 lba48 = (drive->addressing == 1) ? 1 : 0;
+ u8 lba48 = rq_lba48(rq);
task_ioreg_t command = WIN_NOP;
/* try PIO instead of DMA */
diff -Nru a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
--- a/drivers/ide/ide-io.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-io.c Thu May 8 13:58:42 2003
@@ -205,7 +205,7 @@
args->tfRegister[IDE_SELECT_OFFSET] = hwif->INB(IDE_SELECT_REG);
args->tfRegister[IDE_STATUS_OFFSET] = stat;
- if (drive->addressing == 1) {
+ if (args->addressing == 1) {
hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG_HOB);
args->hobRegister[IDE_FEATURE_OFFSET_HOB] = hwif->INB(IDE_FEATURE_REG);
args->hobRegister[IDE_NSECTOR_OFFSET_HOB] = hwif->INB(IDE_NSECTOR_REG);
diff -Nru a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
--- a/drivers/ide/ide-probe.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-probe.c Thu May 8 13:58:42 2003
@@ -998,6 +998,7 @@
static void ide_init_queue(ide_drive_t *drive)
{
request_queue_t *q = &drive->queue;
+ ide_hwif_t *hwif = HWIF(drive);
int max_sectors = 256;
/*
@@ -1013,8 +1014,15 @@
drive->queue_setup = 1;
blk_queue_segment_boundary(q, 0xffff);
- if (HWIF(drive)->rqsize)
- max_sectors = HWIF(drive)->rqsize;
+ /*
+ * use rqsize if specified, else set it to defaults for 28-bit or
+ * 48-bit lba commands
+ */
+ if (hwif->rqsize)
+ max_sectors = hwif->rqsize;
+ else
+ hwif->rqsize = hwif->addressing ? 256 : 65536;
+
blk_queue_max_sectors(q, max_sectors);
/* IDE DMA can do PRD_ENTRIES number of segments. */
diff -Nru a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
--- a/drivers/ide/ide-taskfile.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-taskfile.c Thu May 8 13:58:42 2003
@@ -138,7 +138,7 @@
ide_hwif_t *hwif = HWIF(drive);
task_struct_t *taskfile = (task_struct_t *) task->tfRegister;
hob_struct_t *hobfile = (hob_struct_t *) task->hobRegister;
- u8 HIHI = (drive->addressing == 1) ? 0xE0 : 0xEF;
+ u8 HIHI = (task->addressing == 1) ? 0xE0 : 0xEF;
#ifdef CONFIG_IDE_TASK_IOCTL_DEBUG
void debug_taskfile(drive, task);
@@ -151,7 +151,7 @@
}
SELECT_MASK(drive, 0);
- if (drive->addressing == 1) {
+ if (task->addressing == 1) {
hwif->OUTB(hobfile->feature, IDE_FEATURE_REG);
hwif->OUTB(hobfile->sector_count, IDE_NSECTOR_REG);
hwif->OUTB(hobfile->sector_number, IDE_SECTOR_REG);
@@ -241,7 +241,7 @@
args->tfRegister[IDE_STATUS_OFFSET] = stat;
if ((drive->id->command_set_2 & 0x0400) &&
(drive->id->cfs_enable_2 & 0x0400) &&
- (drive->addressing == 1)) {
+ (args->addressing == 1)) {
hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG_HOB);
args->hobRegister[IDE_FEATURE_OFFSET_HOB] = hwif->INB(IDE_FEATURE_REG);
args->hobRegister[IDE_NSECTOR_OFFSET_HOB] = hwif->INB(IDE_NSECTOR_REG);
@@ -1272,6 +1272,13 @@
args.data_phase = req_task->data_phase;
args.command_type = req_task->req_cmd;
+ /*
+ * this forces 48-bit commands if the drive is configured to do so.
+ * it would also be possible to lookup the command type based on the
+ * opcode, but this is way simpler.
+ */
+ args.addressing = drive->addressing;
+
#ifdef CONFIG_IDE_TASK_IOCTL_DEBUG
DTF("%s: ide_ioctl_cmd %s: ide_task_cmd %s\n",
drive->name,
@@ -1611,13 +1618,13 @@
*/
if (task->tf_out_flags.all == 0) {
task->tf_out_flags.all = IDE_TASKFILE_STD_OUT_FLAGS;
- if (drive->addressing == 1)
+ if (task->addressing == 1)
task->tf_out_flags.all |= (IDE_HOB_STD_OUT_FLAGS << 8);
}
if (task->tf_in_flags.all == 0) {
task->tf_in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
- if (drive->addressing == 1)
+ if (task->addressing == 1)
task->tf_in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8);
}
diff -Nru a/drivers/ide/ide-tcq.c b/drivers/ide/ide-tcq.c
--- a/drivers/ide/ide-tcq.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide-tcq.c Thu May 8 13:58:42 2003
@@ -664,20 +664,20 @@
ide_startstop_t __ide_dma_queued_read(ide_drive_t *drive)
{
- u8 command = WIN_READDMA_QUEUED;
+ struct request *rq = hwgroup->rq;
+ u8 command;
- if (drive->addressing == 1)
- command = WIN_READDMA_QUEUED_EXT;
+ command = rq_lba48(rq) ? WIN_READDMA_QUEUED_EXT : WIN_READDMA_QUEUED;
return ide_dma_queued_rw(drive, command);
}
ide_startstop_t __ide_dma_queued_write(ide_drive_t *drive)
{
- u8 command = WIN_WRITEDMA_QUEUED;
+ struct request *rq = hwgroup->rq;
+ u8 command;
- if (drive->addressing == 1)
- command = WIN_WRITEDMA_QUEUED_EXT;
+ command = rq_lba48(rq) ? WIN_WRITEDMA_QUEUED_EXT : WIN_WRITEDMA_QUEUED;
return ide_dma_queued_rw(drive, command);
}
diff -Nru a/drivers/ide/ide.c b/drivers/ide/ide.c
--- a/drivers/ide/ide.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ide.c Thu May 8 13:58:42 2003
@@ -400,9 +400,20 @@
if (err & MARK_ERR) printk("AddrMarkNotFound ");
printk("}");
if ((err & (BBD_ERR | ABRT_ERR)) == BBD_ERR || (err & (ECC_ERR|ID_ERR|MARK_ERR))) {
+ struct request *rq = HWGROUP(drive)->rq;
+ int lba48 = drive->addressing;
+
+ if (rq) {
+ if (rq->flags & REQ_DRIVE_TASKFILE) {
+ ide_task_t *t = rq->special;
+ lba48 = t->addressing;
+ } else
+ lba48 = rq_lba48(rq);
+ }
+
if ((drive->id->command_set_2 & 0x0400) &&
(drive->id->cfs_enable_2 & 0x0400) &&
- (drive->addressing == 1)) {
+ lba48) {
u64 sectors = 0;
u32 high = 0;
u32 low = ide_read_24(drive);
diff -Nru a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
--- a/drivers/ide/pci/pdc202xx_old.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/pci/pdc202xx_old.c Thu May 8 13:58:42 2003
@@ -535,8 +535,9 @@
static int pdc202xx_old_ide_dma_begin(ide_drive_t *drive)
{
- if (drive->addressing == 1) {
- struct request *rq = HWGROUP(drive)->rq;
+ struct request *rq = HWGROUP(drive)->rq;
+
+ if (rq_lba48(rq)) {
ide_hwif_t *hwif = HWIF(drive);
// struct pci_dev *dev = hwif->pci_dev;
// unsgned long high_16 = pci_resource_start(dev, 4);
@@ -557,7 +558,9 @@
static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
{
- if (drive->addressing == 1) {
+ struct request *rq = HWGROUP(drive)->rq;
+
+ if (rq_lba48(rq)) {
ide_hwif_t *hwif = HWIF(drive);
// unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
unsigned long high_16 = hwif->dma_master;
diff -Nru a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
--- a/drivers/ide/ppc/pmac.c Thu May 8 13:58:42 2003
+++ b/drivers/ide/ppc/pmac.c Thu May 8 13:58:42 2003
@@ -1240,7 +1240,6 @@
// ide_task_t *args = rq->special;
u8 unit = (drive->select.b.unit & 0x01);
u8 ata4;
- u8 lba48 = (drive->addressing == 1) ? 1 : 0;
task_ioreg_t command = WIN_NOP;
if (pmif == NULL)
@@ -1272,7 +1271,7 @@
command = args->tfRegister[IDE_COMMAND_OFFSET];
}
#else
- command = (lba48) ? WIN_READDMA_EXT : WIN_READDMA;
+ command = rq_lba48(rq) ? WIN_READDMA_EXT : WIN_READDMA;
if (rq->flags & REQ_DRIVE_TASKFILE) {
ide_task_t *args = rq->special;
command = args->tfRegister[IDE_COMMAND_OFFSET];
@@ -1293,7 +1292,6 @@
// ide_task_t *args = rq->special;
u8 unit = (drive->select.b.unit & 0x01);
u8 ata4;
- u8 lba48 = (drive->addressing == 1) ? 1 : 0;
task_ioreg_t command = WIN_NOP;
if (pmif == NULL)
@@ -1325,7 +1323,7 @@
command = args->tfRegister[IDE_COMMAND_OFFSET];
}
#else
- command = (lba48) ? WIN_WRITEDMA_EXT : WIN_WRITEDMA;
+ command = rq_lba48(rq) ? WIN_WRITEDMA_EXT : WIN_WRITEDMA;
if (rq->flags & REQ_DRIVE_TASKFILE) {
ide_task_t *args = rq->special;
command = args->tfRegister[IDE_COMMAND_OFFSET];
diff -Nru a/include/linux/ide.h b/include/linux/ide.h
--- a/include/linux/ide.h Thu May 8 13:58:42 2003
+++ b/include/linux/ide.h Thu May 8 13:58:42 2003
@@ -846,6 +846,12 @@
bio_kunmap_irq(buffer, flags);
}
+/*
+ * must be addressed with 48-bit lba
+ */
+#define rq_lba48(rq) \
+ (((rq)->sector + (rq)->nr_sectors) > 0xfffffff || rq->nr_sectors > 256)
+
#define IDE_CHIPSET_PCI_MASK \
((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
@@ -1387,6 +1393,7 @@
ide_reg_valid_t tf_in_flags;
int data_phase;
int command_type;
+ int addressing; /* 1 for 48-bit */
ide_pre_handler_t *prehandler;
ide_handler_t *handler;
ide_post_handler_t *posthandler;
-- Jens Axboe- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/