It can be changed via /proc/ide/hd?/settings.
Signed-off-by: Ed Falk <efalk@xxxxxxxxxx>
---
drivers/ide/ide-dma.c | 3 ++-
drivers/ide/ide.c | 2 ++
include/linux/ide.h | 3 +++
3 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 08e7cd0..a8da725 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -579,7 +579,8 @@ EXPORT_SYMBOL_GPL(ide_dma_setup);
static void ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
/* issue cmd to drive */
- ide_execute_command(drive, command, &ide_dma_intr, 2*WAIT_CMD, dma_timer_expiry);
+ ide_execute_command(drive, command, &ide_dma_intr, drive->dma_timeout,
+ dma_timer_expiry);
}
void ide_dma_start(ide_drive_t *drive)
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index b3c0818..ca841f2 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -245,6 +245,7 @@ static void init_hwif_data(ide_hwif_t *h
drive->name[1] = 'd';
drive->name[2] = 'a' + (index * MAX_DRIVES) + unit;
drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
+ drive->dma_timeout = WAIT_DMA;
drive->using_dma = 0;
drive->vdma = 0;
INIT_LIST_HEAD(&drive->list);
@@ -1197,6 +1198,7 @@ void ide_add_generic_settings (ide_drive
__ide_add_setting(drive, "init_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->init_speed, NULL, 0);
__ide_add_setting(drive, "current_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->current_speed, set_xfer_rate, 0);
__ide_add_setting(drive, "number", SETTING_RW, -1, -1, TYPE_BYTE, 0, 3, 1, 1, &drive->dn, NULL, 0);
+ __ide_add_setting(drive, "dma_timeout", SETTING_RW, -1, -1, TYPE_INT, 0, 2000000000, 1, 1, &drive->dma_timeout, NULL, 0);
}
/**
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 79c0282..3861753 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -183,6 +183,7 @@ #define WAIT_READY (5*HZ) /* 5sec - som
#define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */
#define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */
#define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */
+#define WAIT_DMA (20*HZ) /* 20sec - maximum wait for an IRQ to happen */
#define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */
/*
@@ -638,6 +639,8 @@ typedef struct ide_drive_s {
unsigned int drive_data; /* use by tuneproc/selectproc */
unsigned int failures; /* current failure count */
unsigned int max_failures; /* maximum allowed failure count */
+ int dma_timeout; /* number of jiffies to wait for a
+ dma to complete */
u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */
u64 capacity64; /* total number of sectors */
-
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