2005-04-17 06:20:36 +08:00
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/*
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2008-02-02 06:09:33 +08:00
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* Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
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* Copyright (C) 1998-2002 Linux ATA Development
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* Andre Hedrick <andre@linux-ide.org>
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2008-11-03 04:40:08 +08:00
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* Copyright (C) 2003 Red Hat
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2008-02-02 06:09:33 +08:00
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* Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz
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2005-04-17 06:20:36 +08:00
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*/
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/*
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* Mostly written by Mark Lord <mlord@pobox.com>
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* and Gadi Oxman <gadio@netvision.net.il>
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* and Andre Hedrick <andre@linux-ide.org>
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*
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* This is the IDE/ATA disk driver, as evolved from hd.c and ide.c.
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*/
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/timer.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/major.h>
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#include <linux/errno.h>
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#include <linux/genhd.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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2006-03-23 19:00:45 +08:00
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#include <linux/mutex.h>
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2006-03-31 18:31:16 +08:00
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#include <linux/leds.h>
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2005-04-17 06:20:36 +08:00
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#include <linux/ide.h>
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2008-10-11 04:39:27 +08:00
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#include <linux/hdreg.h>
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2005-04-17 06:20:36 +08:00
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#include <asm/byteorder.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/div64.h>
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2008-10-14 03:39:45 +08:00
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#include "ide-disk.h"
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2005-04-17 06:20:36 +08:00
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2008-01-26 05:17:16 +08:00
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static const u8 ide_rw_cmds[] = {
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2008-10-11 04:39:21 +08:00
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ATA_CMD_READ_MULTI,
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ATA_CMD_WRITE_MULTI,
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ATA_CMD_READ_MULTI_EXT,
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ATA_CMD_WRITE_MULTI_EXT,
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ATA_CMD_PIO_READ,
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ATA_CMD_PIO_WRITE,
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ATA_CMD_PIO_READ_EXT,
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ATA_CMD_PIO_WRITE_EXT,
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ATA_CMD_READ,
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ATA_CMD_WRITE,
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ATA_CMD_READ_EXT,
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ATA_CMD_WRITE_EXT,
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2008-01-26 05:17:16 +08:00
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};
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static const u8 ide_data_phases[] = {
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TASKFILE_MULTI_IN,
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TASKFILE_MULTI_OUT,
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TASKFILE_IN,
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TASKFILE_OUT,
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TASKFILE_IN_DMA,
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TASKFILE_OUT_DMA,
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};
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static void ide_tf_set_cmd(ide_drive_t *drive, ide_task_t *task, u8 dma)
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{
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u8 index, lba48, write;
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lba48 = (task->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
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write = (task->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
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if (dma)
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2008-07-24 01:55:55 +08:00
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index = 8;
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2008-01-26 05:17:16 +08:00
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else
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index = drive->mult_count ? 0 : 4;
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task->tf.command = ide_rw_cmds[index + lba48 + write];
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if (dma)
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index = 8; /* fixup index */
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task->data_phase = ide_data_phases[index / 2 + write];
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}
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2005-04-17 06:20:36 +08:00
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/*
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* __ide_do_rw_disk() issues READ and WRITE commands to a disk,
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* using LBA if supported, or CHS otherwise, to address sectors.
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*/
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2008-04-26 23:36:37 +08:00
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static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
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sector_t block)
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2005-04-17 06:20:36 +08:00
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{
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ide_hwif_t *hwif = HWIF(drive);
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2008-01-26 05:17:12 +08:00
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u16 nsectors = (u16)rq->nr_sectors;
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2008-10-14 03:39:36 +08:00
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u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
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u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
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2008-01-26 05:17:07 +08:00
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ide_task_t task;
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struct ide_taskfile *tf = &task.tf;
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2008-01-26 05:17:16 +08:00
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ide_startstop_t rc;
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2005-04-17 06:20:36 +08:00
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2007-10-19 06:30:07 +08:00
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if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) {
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2005-04-17 06:20:36 +08:00
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if (block + rq->nr_sectors > 1ULL << 28)
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dma = 0;
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else
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lba48 = 0;
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}
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if (!dma) {
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ide_init_sg_cmd(drive, rq);
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ide_map_sg(drive, rq);
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}
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2008-01-26 05:17:07 +08:00
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memset(&task, 0, sizeof(task));
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2008-07-16 03:21:48 +08:00
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task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
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2008-01-26 05:17:06 +08:00
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2008-10-14 03:39:38 +08:00
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if (drive->dev_flags & IDE_DFLAG_LBA) {
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2005-04-17 06:20:36 +08:00
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if (lba48) {
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2006-02-08 04:58:33 +08:00
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pr_debug("%s: LBA=0x%012llx\n", drive->name,
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(unsigned long long)block);
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2005-04-17 06:20:36 +08:00
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2008-01-26 05:17:12 +08:00
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tf->hob_nsect = (nsectors >> 8) & 0xff;
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2008-01-26 05:17:06 +08:00
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tf->hob_lbal = (u8)(block >> 24);
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if (sizeof(block) != 4) {
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tf->hob_lbam = (u8)((u64)block >> 32);
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tf->hob_lbah = (u8)((u64)block >> 40);
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2005-04-17 06:20:36 +08:00
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}
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2008-01-26 05:17:06 +08:00
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2008-01-26 05:17:12 +08:00
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tf->nsect = nsectors & 0xff;
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2008-01-26 05:17:06 +08:00
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tf->lbal = (u8) block;
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tf->lbam = (u8)(block >> 8);
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tf->lbah = (u8)(block >> 16);
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2008-01-27 03:13:03 +08:00
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2008-01-27 03:13:10 +08:00
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task.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
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2005-04-17 06:20:36 +08:00
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} else {
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2008-01-26 05:17:12 +08:00
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tf->nsect = nsectors & 0xff;
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2008-01-26 05:17:06 +08:00
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tf->lbal = block;
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tf->lbam = block >>= 8;
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tf->lbah = block >>= 8;
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tf->device = (block >> 8) & 0xf;
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2005-04-17 06:20:36 +08:00
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}
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2008-10-14 03:39:38 +08:00
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tf->device |= ATA_LBA;
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2005-04-17 06:20:36 +08:00
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} else {
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2008-04-26 23:36:37 +08:00
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unsigned int sect, head, cyl, track;
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2005-04-17 06:20:36 +08:00
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track = (int)block / drive->sect;
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sect = (int)block % drive->sect + 1;
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head = track % drive->head;
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cyl = track / drive->head;
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pr_debug("%s: CHS=%u/%u/%u\n", drive->name, cyl, head, sect);
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2008-01-26 05:17:12 +08:00
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tf->nsect = nsectors & 0xff;
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2008-01-26 05:17:06 +08:00
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tf->lbal = sect;
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tf->lbam = cyl;
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tf->lbah = cyl >> 8;
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tf->device = head;
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2005-04-17 06:20:36 +08:00
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}
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2008-01-26 05:17:16 +08:00
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if (rq_data_dir(rq))
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task.tf_flags |= IDE_TFLAG_WRITE;
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ide_tf_set_cmd(drive, &task, dma);
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2008-01-26 05:17:16 +08:00
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if (!dma)
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hwif->data_phase = task.data_phase;
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task.rq = rq;
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2008-01-26 05:17:16 +08:00
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2008-01-26 05:17:16 +08:00
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rc = do_rw_taskfile(drive, &task);
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2008-01-26 05:17:06 +08:00
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2008-01-26 05:17:16 +08:00
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if (rc == ide_stopped && dma) {
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2005-04-17 06:20:36 +08:00
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/* fallback to PIO */
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2008-01-26 05:17:16 +08:00
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task.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
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2008-01-26 05:17:16 +08:00
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ide_tf_set_cmd(drive, &task, 0);
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2008-01-26 05:17:16 +08:00
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hwif->data_phase = task.data_phase;
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2005-04-17 06:20:36 +08:00
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ide_init_sg_cmd(drive, rq);
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2008-01-26 05:17:16 +08:00
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rc = do_rw_taskfile(drive, &task);
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2005-04-17 06:20:36 +08:00
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}
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2008-01-26 05:17:16 +08:00
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return rc;
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2005-04-17 06:20:36 +08:00
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}
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/*
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* 268435455 == 137439 MB or 28bit limit
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* 320173056 == 163929 MB or 48bit addressing
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* 1073741822 == 549756 MB or 48bit addressing fake drive
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*/
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2008-10-18 00:09:14 +08:00
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static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
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sector_t block)
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2005-04-17 06:20:36 +08:00
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{
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ide_hwif_t *hwif = HWIF(drive);
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2008-10-14 03:39:36 +08:00
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BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
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2005-04-17 06:20:36 +08:00
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if (!blk_fs_request(rq)) {
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blk_dump_rq_flags(rq, "ide_do_rw_disk - bad command");
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ide_end_request(drive, 0, 0);
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return ide_stopped;
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}
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2006-03-31 18:31:16 +08:00
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ledtrig_ide_activity();
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2005-04-17 06:20:36 +08:00
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pr_debug("%s: %sing: block=%llu, sectors=%lu, buffer=0x%08lx\n",
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drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
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2006-02-08 04:58:33 +08:00
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(unsigned long long)block, rq->nr_sectors,
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(unsigned long)rq->buffer);
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2005-04-17 06:20:36 +08:00
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if (hwif->rw_disk)
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hwif->rw_disk(drive, rq);
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return __ide_do_rw_disk(drive, rq, block);
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}
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/*
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* Queries for true maximum capacity of the drive.
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* Returns maximum LBA address (> 0) of the drive, 0 if failed.
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*/
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2008-01-26 05:17:06 +08:00
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static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48)
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2005-04-17 06:20:36 +08:00
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{
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ide_task_t args;
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2008-01-26 05:17:06 +08:00
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struct ide_taskfile *tf = &args.tf;
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2008-01-26 05:17:06 +08:00
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u64 addr = 0;
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2005-04-17 06:20:36 +08:00
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/* Create IDE/ATA command request structure */
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memset(&args, 0, sizeof(ide_task_t));
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2008-01-26 05:17:06 +08:00
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if (lba48)
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2008-10-11 04:39:21 +08:00
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tf->command = ATA_CMD_READ_NATIVE_MAX_EXT;
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2008-01-26 05:17:06 +08:00
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else
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2008-10-11 04:39:21 +08:00
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tf->command = ATA_CMD_READ_NATIVE_MAX;
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2008-01-26 05:17:06 +08:00
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tf->device = ATA_LBA;
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2008-01-27 03:13:10 +08:00
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args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
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2008-01-26 05:17:10 +08:00
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if (lba48)
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2008-01-27 03:13:10 +08:00
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args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
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2005-04-17 06:20:36 +08:00
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/* submit command request */
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2008-01-26 05:17:07 +08:00
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ide_no_data_taskfile(drive, &args);
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2005-04-17 06:20:36 +08:00
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/* if OK, compute maximum address value */
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2008-01-26 05:17:17 +08:00
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if ((tf->status & 0x01) == 0)
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addr = ide_get_lba_addr(tf, lba48) + 1;
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2008-01-26 05:17:06 +08:00
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2005-04-17 06:20:36 +08:00
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return addr;
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}
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/*
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* Sets maximum virtual LBA address of the drive.
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* Returns new maximum virtual LBA address (> 0) or 0 on failure.
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*/
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2008-01-26 05:17:06 +08:00
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static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48)
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2005-04-17 06:20:36 +08:00
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{
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ide_task_t args;
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2008-01-26 05:17:06 +08:00
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struct ide_taskfile *tf = &args.tf;
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2008-01-26 05:17:06 +08:00
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u64 addr_set = 0;
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2005-04-17 06:20:36 +08:00
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addr_req--;
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/* Create IDE/ATA command request structure */
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memset(&args, 0, sizeof(ide_task_t));
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2008-01-26 05:17:06 +08:00
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tf->lbal = (addr_req >> 0) & 0xff;
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tf->lbam = (addr_req >>= 8) & 0xff;
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tf->lbah = (addr_req >>= 8) & 0xff;
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2008-01-26 05:17:06 +08:00
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if (lba48) {
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tf->hob_lbal = (addr_req >>= 8) & 0xff;
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tf->hob_lbam = (addr_req >>= 8) & 0xff;
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tf->hob_lbah = (addr_req >>= 8) & 0xff;
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2008-10-11 04:39:21 +08:00
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tf->command = ATA_CMD_SET_MAX_EXT;
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2008-01-26 05:17:06 +08:00
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} else {
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tf->device = (addr_req >>= 8) & 0x0f;
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2008-10-11 04:39:21 +08:00
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tf->command = ATA_CMD_SET_MAX;
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2008-01-26 05:17:06 +08:00
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}
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tf->device |= ATA_LBA;
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2008-01-27 03:13:10 +08:00
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args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
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2008-01-26 05:17:10 +08:00
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if (lba48)
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2008-01-27 03:13:10 +08:00
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args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
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2005-04-17 06:20:36 +08:00
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/* submit command request */
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2008-01-26 05:17:07 +08:00
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ide_no_data_taskfile(drive, &args);
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2005-04-17 06:20:36 +08:00
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/* if OK, compute maximum address value */
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2008-01-26 05:17:17 +08:00
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if ((tf->status & 0x01) == 0)
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addr_set = ide_get_lba_addr(tf, lba48) + 1;
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2008-01-26 05:17:06 +08:00
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2005-04-17 06:20:36 +08:00
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return addr_set;
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|
|
}
|
|
|
|
|
|
|
|
static unsigned long long sectors_to_MB(unsigned long long n)
|
|
|
|
{
|
|
|
|
n <<= 9; /* make it bytes */
|
|
|
|
do_div(n, 1000000); /* make it MB */
|
|
|
|
return n;
|
|
|
|
}
|
|
|
|
|
2007-08-21 04:42:57 +08:00
|
|
|
/*
|
|
|
|
* Some disks report total number of sectors instead of
|
|
|
|
* maximum sector address. We list them here.
|
|
|
|
*/
|
|
|
|
static const struct drive_list_entry hpa_list[] = {
|
|
|
|
{ "ST340823A", NULL },
|
2007-09-17 18:35:30 +08:00
|
|
|
{ "ST320413A", NULL },
|
2008-02-19 08:41:25 +08:00
|
|
|
{ "ST310211A", NULL },
|
2007-08-21 04:42:57 +08:00
|
|
|
{ NULL, NULL }
|
|
|
|
};
|
|
|
|
|
2006-01-15 05:20:43 +08:00
|
|
|
static void idedisk_check_hpa(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
unsigned long long capacity, set_max;
|
2008-10-11 04:39:30 +08:00
|
|
|
int lba48 = ata_id_lba48_enabled(drive->id);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
capacity = drive->capacity64;
|
2008-01-26 05:17:06 +08:00
|
|
|
|
|
|
|
set_max = idedisk_read_native_max_address(drive, lba48);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-08-21 04:42:57 +08:00
|
|
|
if (ide_in_drive_list(drive->id, hpa_list)) {
|
|
|
|
/*
|
|
|
|
* Since we are inclusive wrt to firmware revisions do this
|
|
|
|
* extra check and apply the workaround only when needed.
|
|
|
|
*/
|
|
|
|
if (set_max == capacity + 1)
|
|
|
|
set_max--;
|
|
|
|
}
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
if (set_max <= capacity)
|
|
|
|
return;
|
|
|
|
|
|
|
|
printk(KERN_INFO "%s: Host Protected Area detected.\n"
|
|
|
|
"\tcurrent capacity is %llu sectors (%llu MB)\n"
|
|
|
|
"\tnative capacity is %llu sectors (%llu MB)\n",
|
|
|
|
drive->name,
|
|
|
|
capacity, sectors_to_MB(capacity),
|
|
|
|
set_max, sectors_to_MB(set_max));
|
|
|
|
|
2008-01-26 05:17:06 +08:00
|
|
|
set_max = idedisk_set_max_address(drive, set_max, lba48);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
if (set_max) {
|
|
|
|
drive->capacity64 = set_max;
|
|
|
|
printk(KERN_INFO "%s: Host Protected Area disabled.\n",
|
|
|
|
drive->name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-10-18 00:09:14 +08:00
|
|
|
static int ide_disk_get_capacity(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id = drive->id;
|
2008-10-14 03:39:38 +08:00
|
|
|
int lba;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-10-11 04:39:30 +08:00
|
|
|
if (ata_id_lba48_enabled(id)) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/* drive speaks 48-bit LBA */
|
2008-10-14 03:39:38 +08:00
|
|
|
lba = 1;
|
2008-10-11 04:39:19 +08:00
|
|
|
drive->capacity64 = ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
|
2008-10-11 04:39:31 +08:00
|
|
|
} else if (ata_id_has_lba(id) && ata_id_is_lba_capacity_ok(id)) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/* drive speaks 28-bit LBA */
|
2008-10-14 03:39:38 +08:00
|
|
|
lba = 1;
|
2008-10-11 04:39:19 +08:00
|
|
|
drive->capacity64 = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
|
2005-04-17 06:20:36 +08:00
|
|
|
} else {
|
|
|
|
/* drive speaks boring old 28-bit CHS */
|
2008-10-14 03:39:38 +08:00
|
|
|
lba = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
drive->capacity64 = drive->cyl * drive->head * drive->sect;
|
|
|
|
}
|
2008-10-14 03:39:38 +08:00
|
|
|
|
|
|
|
if (lba) {
|
|
|
|
drive->dev_flags |= IDE_DFLAG_LBA;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If this device supports the Host Protected Area feature set,
|
|
|
|
* then we may need to change our opinion about its capacity.
|
|
|
|
*/
|
|
|
|
if (ata_id_hpa_enabled(id))
|
|
|
|
idedisk_check_hpa(drive);
|
|
|
|
}
|
2008-10-18 00:09:09 +08:00
|
|
|
|
|
|
|
/* limit drive capacity to 137GB if LBA48 cannot be used */
|
|
|
|
if ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 &&
|
|
|
|
drive->capacity64 > 1ULL << 28) {
|
|
|
|
printk(KERN_WARNING "%s: cannot use LBA48 - full capacity "
|
|
|
|
"%llu sectors (%llu MB)\n",
|
|
|
|
drive->name, (unsigned long long)drive->capacity64,
|
|
|
|
sectors_to_MB(drive->capacity64));
|
|
|
|
drive->capacity64 = 1ULL << 28;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) &&
|
|
|
|
(drive->dev_flags & IDE_DFLAG_LBA48)) {
|
|
|
|
if (drive->capacity64 > 1ULL << 28) {
|
|
|
|
printk(KERN_INFO "%s: cannot use LBA48 DMA - PIO mode"
|
|
|
|
" will be used for accessing sectors "
|
|
|
|
"> %u\n", drive->name, 1 << 28);
|
|
|
|
} else
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_LBA48;
|
|
|
|
}
|
2008-10-18 00:09:14 +08:00
|
|
|
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-07-24 15:28:11 +08:00
|
|
|
static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
ide_drive_t *drive = q->queuedata;
|
2008-02-11 07:32:14 +08:00
|
|
|
ide_task_t *task = kmalloc(sizeof(*task), GFP_ATOMIC);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-02-11 07:32:14 +08:00
|
|
|
/* FIXME: map struct ide_taskfile on rq->cmd[] */
|
|
|
|
BUG_ON(task == NULL);
|
|
|
|
|
|
|
|
memset(task, 0, sizeof(*task));
|
2008-10-11 04:39:31 +08:00
|
|
|
if (ata_id_flush_ext_enabled(drive->id) &&
|
2005-04-17 06:20:36 +08:00
|
|
|
(drive->capacity64 >= (1UL << 28)))
|
2008-10-11 04:39:21 +08:00
|
|
|
task->tf.command = ATA_CMD_FLUSH_EXT;
|
2005-04-17 06:20:36 +08:00
|
|
|
else
|
2008-10-11 04:39:21 +08:00
|
|
|
task->tf.command = ATA_CMD_FLUSH;
|
2008-02-11 07:32:14 +08:00
|
|
|
task->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
|
|
|
|
IDE_TFLAG_DYN;
|
|
|
|
task->data_phase = TASKFILE_NO_DATA;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-26 05:17:10 +08:00
|
|
|
rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
|
2006-08-10 14:44:47 +08:00
|
|
|
rq->cmd_flags |= REQ_SOFTBARRIER;
|
2008-02-11 07:32:14 +08:00
|
|
|
rq->special = task;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
ide_devset_get(multcount, mult_count);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* This is tightly woven into the driver->do_special can not touch.
|
|
|
|
* DON'T do it again until a total personality rewrite is committed.
|
|
|
|
*/
|
|
|
|
static int set_multcount(ide_drive_t *drive, int arg)
|
|
|
|
{
|
2008-07-16 03:21:43 +08:00
|
|
|
struct request *rq;
|
|
|
|
int error;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff))
|
2007-05-10 06:01:10 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
if (drive->special.b.set_multmode)
|
|
|
|
return -EBUSY;
|
2008-01-27 03:13:12 +08:00
|
|
|
|
2008-07-16 03:21:43 +08:00
|
|
|
rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
|
|
|
|
rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
|
2008-01-27 03:13:12 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
drive->mult_req = arg;
|
|
|
|
drive->special.b.set_multmode = 1;
|
2008-07-16 03:21:43 +08:00
|
|
|
error = blk_execute_rq(drive->queue, NULL, rq, 0);
|
|
|
|
blk_put_request(rq);
|
2008-04-26 23:36:37 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return (drive->mult_count == arg) ? 0 : -EIO;
|
|
|
|
}
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
ide_devset_get_flag(nowerr, IDE_DFLAG_NOWERR);
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
static int set_nowerr(ide_drive_t *drive, int arg)
|
|
|
|
{
|
2007-05-10 06:01:10 +08:00
|
|
|
if (arg < 0 || arg > 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (arg)
|
|
|
|
drive->dev_flags |= IDE_DFLAG_NOWERR;
|
|
|
|
else
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_NOWERR;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
drive->bad_wstat = arg ? BAD_R_STAT : BAD_W_STAT;
|
2008-10-14 03:39:36 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
static int ide_do_setfeature(ide_drive_t *drive, u8 feature, u8 nsect)
|
|
|
|
{
|
|
|
|
ide_task_t task;
|
|
|
|
|
|
|
|
memset(&task, 0, sizeof(task));
|
|
|
|
task.tf.feature = feature;
|
|
|
|
task.tf.nsect = nsect;
|
|
|
|
task.tf.command = ATA_CMD_SET_FEATURES;
|
|
|
|
task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
|
|
|
|
|
|
|
|
return ide_no_data_taskfile(drive, &task);
|
|
|
|
}
|
|
|
|
|
2006-01-06 16:57:31 +08:00
|
|
|
static void update_ordered(ide_drive_t *drive)
|
|
|
|
{
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id = drive->id;
|
2006-01-06 16:57:31 +08:00
|
|
|
unsigned ordered = QUEUE_ORDERED_NONE;
|
|
|
|
prepare_flush_fn *prep_fn = NULL;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_WCACHE) {
|
2006-01-06 16:57:31 +08:00
|
|
|
unsigned long long capacity;
|
|
|
|
int barrier;
|
|
|
|
/*
|
|
|
|
* We must avoid issuing commands a drive does not
|
|
|
|
* understand or we may crash it. We check flush cache
|
|
|
|
* is supported. We also check we have the LBA48 flush
|
|
|
|
* cache if the drive capacity is too large. By this
|
|
|
|
* time we have trimmed the drive capacity if LBA48 is
|
|
|
|
* not available so we don't need to recheck that.
|
|
|
|
*/
|
2008-10-18 00:09:12 +08:00
|
|
|
capacity = ide_gd_capacity(drive);
|
2008-10-14 03:39:36 +08:00
|
|
|
barrier = ata_id_flush_enabled(id) &&
|
|
|
|
(drive->dev_flags & IDE_DFLAG_NOFLUSH) == 0 &&
|
|
|
|
((drive->dev_flags & IDE_DFLAG_LBA48) == 0 ||
|
|
|
|
capacity <= (1ULL << 28) ||
|
2008-10-11 04:39:31 +08:00
|
|
|
ata_id_flush_ext_enabled(id));
|
2006-01-06 16:57:31 +08:00
|
|
|
|
|
|
|
printk(KERN_INFO "%s: cache flushes %ssupported\n",
|
2006-02-03 19:04:57 +08:00
|
|
|
drive->name, barrier ? "" : "not ");
|
2006-01-06 16:57:31 +08:00
|
|
|
|
|
|
|
if (barrier) {
|
|
|
|
ordered = QUEUE_ORDERED_DRAIN_FLUSH;
|
|
|
|
prep_fn = idedisk_prepare_flush;
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
ordered = QUEUE_ORDERED_DRAIN;
|
|
|
|
|
|
|
|
blk_queue_ordered(drive->queue, ordered, prep_fn);
|
|
|
|
}
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
ide_devset_get_flag(wcache, IDE_DFLAG_WCACHE);
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
|
|
|
|
static int set_wcache(ide_drive_t *drive, int arg)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2006-01-06 16:57:31 +08:00
|
|
|
int err = 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-05-10 06:01:10 +08:00
|
|
|
if (arg < 0 || arg > 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-10-11 04:39:30 +08:00
|
|
|
if (ata_id_flush_enabled(drive->id)) {
|
2008-10-14 03:39:36 +08:00
|
|
|
err = ide_do_setfeature(drive,
|
|
|
|
arg ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF, 0);
|
2008-10-14 03:39:36 +08:00
|
|
|
if (err == 0) {
|
|
|
|
if (arg)
|
|
|
|
drive->dev_flags |= IDE_DFLAG_WCACHE;
|
|
|
|
else
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_WCACHE;
|
|
|
|
}
|
2006-01-06 16:57:31 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2006-01-06 16:57:31 +08:00
|
|
|
update_ordered(drive);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2006-01-06 16:57:31 +08:00
|
|
|
return err;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-04-26 23:36:37 +08:00
|
|
|
static int do_idedisk_flushcache(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
ide_task_t args;
|
|
|
|
|
|
|
|
memset(&args, 0, sizeof(ide_task_t));
|
2008-10-11 04:39:31 +08:00
|
|
|
if (ata_id_flush_ext_enabled(drive->id))
|
2008-10-11 04:39:21 +08:00
|
|
|
args.tf.command = ATA_CMD_FLUSH_EXT;
|
2005-04-17 06:20:36 +08:00
|
|
|
else
|
2008-10-11 04:39:21 +08:00
|
|
|
args.tf.command = ATA_CMD_FLUSH;
|
2008-01-27 03:13:10 +08:00
|
|
|
args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
|
2008-01-26 05:17:07 +08:00
|
|
|
return ide_no_data_taskfile(drive, &args);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
ide_devset_get(acoustic, acoustic);
|
|
|
|
|
2008-04-26 23:36:37 +08:00
|
|
|
static int set_acoustic(ide_drive_t *drive, int arg)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-05-10 06:01:10 +08:00
|
|
|
if (arg < 0 || arg > 254)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
ide_do_setfeature(drive,
|
|
|
|
arg ? SETFEATURES_AAM_ON : SETFEATURES_AAM_OFF, arg);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
drive->acoustic = arg;
|
2008-10-14 03:39:36 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
ide_devset_get_flag(addressing, IDE_DFLAG_LBA48);
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* drive->addressing:
|
|
|
|
* 0: 28-bit
|
|
|
|
* 1: 48-bit
|
|
|
|
* 2: 48-bit capable doing 28-bit
|
|
|
|
*/
|
2008-10-11 04:39:33 +08:00
|
|
|
static int set_addressing(ide_drive_t *drive, int arg)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-05-10 06:01:10 +08:00
|
|
|
if (arg < 0 || arg > 2)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (arg && ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
|
|
|
|
ata_id_lba48_enabled(drive->id) == 0))
|
2008-04-26 23:36:37 +08:00
|
|
|
return -EIO;
|
2008-10-11 04:39:30 +08:00
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (arg == 2)
|
|
|
|
arg = 0;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (arg)
|
|
|
|
drive->dev_flags |= IDE_DFLAG_LBA48;
|
|
|
|
else
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_LBA48;
|
2008-10-11 04:39:30 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-10-14 03:39:45 +08:00
|
|
|
ide_ext_devset_rw(acoustic, acoustic);
|
|
|
|
ide_ext_devset_rw(address, addressing);
|
|
|
|
ide_ext_devset_rw(multcount, multcount);
|
|
|
|
ide_ext_devset_rw(wcache, wcache);
|
2008-10-11 04:39:40 +08:00
|
|
|
|
2008-10-14 03:39:45 +08:00
|
|
|
ide_ext_devset_rw_sync(nowerr, nowerr);
|
2008-10-11 04:39:40 +08:00
|
|
|
|
2008-10-18 00:09:14 +08:00
|
|
|
static int ide_disk_check(ide_drive_t *drive, const char *s)
|
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ide_disk_setup(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-10-11 04:39:27 +08:00
|
|
|
struct ide_disk_obj *idkp = drive->driver_data;
|
2008-10-24 05:22:09 +08:00
|
|
|
struct request_queue *q = drive->queue;
|
2007-10-19 06:30:07 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id = drive->id;
|
|
|
|
char *m = (char *)&id[ATA_ID_PROD];
|
2005-04-17 06:20:36 +08:00
|
|
|
unsigned long long capacity;
|
|
|
|
|
2008-10-11 04:39:27 +08:00
|
|
|
ide_proc_register_driver(drive, idkp->driver);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0)
|
2005-04-17 06:20:36 +08:00
|
|
|
return;
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_REMOVABLE) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
2008-04-26 23:36:37 +08:00
|
|
|
* Removable disks (eg. SYQUEST); ignore 'WD' drives
|
2005-04-17 06:20:36 +08:00
|
|
|
*/
|
2008-10-11 04:39:19 +08:00
|
|
|
if (m[0] != 'W' || m[1] != 'D')
|
2008-10-14 03:39:36 +08:00
|
|
|
drive->dev_flags |= IDE_DFLAG_DOORLOCKING;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-10-11 04:39:33 +08:00
|
|
|
(void)set_addressing(drive, 1);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_LBA48) {
|
2005-04-17 06:20:36 +08:00
|
|
|
int max_s = 2048;
|
|
|
|
|
|
|
|
if (max_s > hwif->rqsize)
|
|
|
|
max_s = hwif->rqsize;
|
|
|
|
|
2008-10-24 05:22:09 +08:00
|
|
|
blk_queue_max_sectors(q, max_s);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-04-26 23:36:37 +08:00
|
|
|
printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name,
|
2008-10-24 05:22:09 +08:00
|
|
|
q->max_sectors / 2);
|
|
|
|
|
|
|
|
if (ata_id_is_ssd(id) || ata_id_is_cfa(id))
|
|
|
|
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/* calculate drive capacity, and select LBA if possible */
|
2008-10-18 00:09:14 +08:00
|
|
|
ide_disk_get_capacity(drive);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* if possible, give fdisk access to more of the drive,
|
|
|
|
* by correcting bios_cyls:
|
|
|
|
*/
|
2008-10-18 00:09:12 +08:00
|
|
|
capacity = ide_gd_capacity(drive);
|
2008-04-26 23:36:37 +08:00
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if ((drive->dev_flags & IDE_DFLAG_FORCED_GEOM) == 0) {
|
2008-10-11 04:39:30 +08:00
|
|
|
if (ata_id_lba48_enabled(drive->id)) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/* compatibility */
|
|
|
|
drive->bios_sect = 63;
|
|
|
|
drive->bios_head = 255;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (drive->bios_sect && drive->bios_head) {
|
|
|
|
unsigned int cap0 = capacity; /* truncate to 32 bits */
|
|
|
|
unsigned int cylsz, cyl;
|
|
|
|
|
|
|
|
if (cap0 != capacity)
|
|
|
|
drive->bios_cyl = 65535;
|
|
|
|
else {
|
|
|
|
cylsz = drive->bios_sect * drive->bios_head;
|
|
|
|
cyl = cap0 / cylsz;
|
|
|
|
if (cyl > 65535)
|
|
|
|
cyl = 65535;
|
|
|
|
if (cyl > drive->bios_cyl)
|
|
|
|
drive->bios_cyl = cyl;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
printk(KERN_INFO "%s: %llu sectors (%llu MB)",
|
|
|
|
drive->name, capacity, sectors_to_MB(capacity));
|
|
|
|
|
|
|
|
/* Only print cache size when it was specified */
|
2008-10-11 04:39:19 +08:00
|
|
|
if (id[ATA_ID_BUF_SIZE])
|
|
|
|
printk(KERN_CONT " w/%dKiB Cache", id[ATA_ID_BUF_SIZE] / 2);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-12-13 06:31:58 +08:00
|
|
|
printk(KERN_CONT ", CHS=%d/%d/%d\n",
|
|
|
|
drive->bios_cyl, drive->bios_head, drive->bios_sect);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/* write cache enabled? */
|
2008-10-11 04:39:20 +08:00
|
|
|
if ((id[ATA_ID_CSFO] & 1) || ata_id_wcache_enabled(id))
|
2008-10-14 03:39:36 +08:00
|
|
|
drive->dev_flags |= IDE_DFLAG_WCACHE;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
ide: /proc/ide/hd*/settings rework
* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:28 +08:00
|
|
|
set_wcache(drive, 1);
|
2008-10-18 00:09:10 +08:00
|
|
|
|
|
|
|
if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 &&
|
|
|
|
(drive->head == 0 || drive->head > 16)) {
|
|
|
|
printk(KERN_ERR "%s: invalid geometry: %d physical heads?\n",
|
|
|
|
drive->name, drive->head);
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_ATTACH;
|
|
|
|
} else
|
|
|
|
drive->dev_flags |= IDE_DFLAG_ATTACH;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-10-18 00:09:14 +08:00
|
|
|
static void ide_disk_flush(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-10-14 03:39:36 +08:00
|
|
|
if (ata_id_flush_enabled(drive->id) == 0 ||
|
|
|
|
(drive->dev_flags & IDE_DFLAG_WCACHE) == 0)
|
2005-04-17 06:20:36 +08:00
|
|
|
return;
|
|
|
|
|
|
|
|
if (do_idedisk_flushcache(drive))
|
|
|
|
printk(KERN_INFO "%s: wcache flush failed!\n", drive->name);
|
|
|
|
}
|
|
|
|
|
2008-10-18 00:09:14 +08:00
|
|
|
static int ide_disk_init_media(ide_drive_t *drive, struct gendisk *disk)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ide_disk_set_doorlock(ide_drive_t *drive, struct gendisk *disk,
|
|
|
|
int on)
|
2008-01-27 03:12:59 +08:00
|
|
|
{
|
|
|
|
ide_task_t task;
|
2008-10-18 00:09:10 +08:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0)
|
|
|
|
return 0;
|
2008-01-27 03:12:59 +08:00
|
|
|
|
|
|
|
memset(&task, 0, sizeof(task));
|
2008-10-11 04:39:21 +08:00
|
|
|
task.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
|
2008-01-27 03:13:10 +08:00
|
|
|
task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
|
2008-01-27 03:12:59 +08:00
|
|
|
|
2008-10-18 00:09:10 +08:00
|
|
|
ret = ide_no_data_taskfile(drive, &task);
|
|
|
|
|
|
|
|
if (ret)
|
|
|
|
drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
|
|
|
|
|
|
|
|
return ret;
|
2008-01-27 03:12:59 +08:00
|
|
|
}
|
2008-10-18 00:09:14 +08:00
|
|
|
|
|
|
|
const struct ide_disk_ops ide_ata_disk_ops = {
|
|
|
|
.check = ide_disk_check,
|
|
|
|
.get_capacity = ide_disk_get_capacity,
|
|
|
|
.setup = ide_disk_setup,
|
|
|
|
.flush = ide_disk_flush,
|
|
|
|
.init_media = ide_disk_init_media,
|
|
|
|
.set_doorlock = ide_disk_set_doorlock,
|
|
|
|
.do_request = ide_do_rw_disk,
|
|
|
|
.end_request = ide_end_request,
|
|
|
|
.ioctl = ide_disk_ioctl,
|
|
|
|
};
|