diff options
Diffstat (limited to 'drivers/ide/ide-taskfile.c')
| -rw-r--r-- | drivers/ide/ide-taskfile.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 16a9a581d08..4e1da1c78cb 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -755,6 +755,7 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) u8 args[4], xfer_rate = 0; ide_task_t tfargs; struct ide_taskfile *tf = &tfargs.tf; + struct hd_driveid *id = drive->id; if (NULL == (void *) arg) { struct request rq; @@ -792,10 +793,16 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) return -ENOMEM; } - if (set_transfer(drive, &tfargs)) { + if (tf->command == WIN_SETFEATURES && + tf->feature == SETFEATURES_XFER && + tf->nsect >= XFER_SW_DMA_0 && + (id->dma_ultra || id->dma_mword || id->dma_1word)) { xfer_rate = args[1]; - if (ide_ata66_check(drive, &tfargs)) + if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) { + printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot " + "be set\n", drive->name); goto abort; + } } err = ide_raw_taskfile(drive, &tfargs, buf, args[3]); |