static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
				     unsigned int write)
{
	u8 saved_io_32bit = drive->io_32bit;

	if (rq->bio)	/* fs request */
		rq->errors = 0;

	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
		ide_task_t *task = rq->special;

		if (task->tf_flags & IDE_TFLAG_IO_16BIT)
			drive->io_32bit = 0;
	}

	touch_softlockup_watchdog();

	switch (drive->hwif->data_phase) {
	case TASKFILE_MULTI_IN:
	case TASKFILE_MULTI_OUT:
		ide_pio_multi(drive, rq, write);
		break;
	default:
		ide_pio_sector(drive, rq, write);
		break;
	}

	drive->io_32bit = saved_io_32bit;
}
Exemplo n.º 2
0
static void ide_pio_multi(ide_drive_t *drive, unsigned int write)
{
	unsigned int nsect;

	nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
	while (nsect--)
		ide_pio_sector(drive, write);
}