Lines Matching +full:i +full:- +full:drive
1 // SPDX-License-Identifier: GPL-2.0-only
8 static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, in ide_ata_error() argument
11 ide_hwif_t *hwif = drive->hwif; in ide_ata_error()
14 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) { in ide_ata_error()
16 scsi_req(rq)->result |= ERROR_RESET; in ide_ata_error()
20 if ((drive->dev_flags & IDE_DFLAG_LBA) && in ide_ata_error()
22 hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS) in ide_ata_error()
26 drive->crc_count++; in ide_ata_error()
29 scsi_req(rq)->result = ERROR_MAX; in ide_ata_error()
32 scsi_req(rq)->result |= ERROR_RECAL; in ide_ata_error()
37 (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) { in ide_ata_error()
38 int nsect = drive->mult_count ? drive->mult_count : 1; in ide_ata_error()
40 ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE); in ide_ata_error()
43 if (scsi_req(rq)->result >= ERROR_MAX || blk_noretry_request(rq)) { in ide_ata_error()
44 ide_kill_rq(drive, rq); in ide_ata_error()
48 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ)) in ide_ata_error()
49 scsi_req(rq)->result |= ERROR_RESET; in ide_ata_error()
51 if ((scsi_req(rq)->result & ERROR_RESET) == ERROR_RESET) { in ide_ata_error()
52 ++scsi_req(rq)->result; in ide_ata_error()
53 return ide_do_reset(drive); in ide_ata_error()
56 if ((scsi_req(rq)->result & ERROR_RECAL) == ERROR_RECAL) in ide_ata_error()
57 drive->special_flags |= IDE_SFLAG_RECALIBRATE; in ide_ata_error()
59 ++scsi_req(rq)->result; in ide_ata_error()
64 static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, in ide_atapi_error() argument
67 ide_hwif_t *hwif = drive->hwif; in ide_atapi_error()
70 ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) { in ide_atapi_error()
72 scsi_req(rq)->result |= ERROR_RESET; in ide_atapi_error()
77 if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ)) in ide_atapi_error()
79 hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE); in ide_atapi_error()
81 if (scsi_req(rq)->result >= ERROR_MAX) { in ide_atapi_error()
82 ide_kill_rq(drive, rq); in ide_atapi_error()
84 if ((scsi_req(rq)->result & ERROR_RESET) == ERROR_RESET) { in ide_atapi_error()
85 ++scsi_req(rq)->result; in ide_atapi_error()
86 return ide_do_reset(drive); in ide_atapi_error()
88 ++scsi_req(rq)->result; in ide_atapi_error()
94 static ide_startstop_t __ide_error(ide_drive_t *drive, struct request *rq, in __ide_error() argument
97 if (drive->media == ide_disk) in __ide_error()
98 return ide_ata_error(drive, rq, stat, err); in __ide_error()
99 return ide_atapi_error(drive, rq, stat, err); in __ide_error()
103 * ide_error - handle an error on the IDE
104 * @drive: drive the error occurred on
108 * ide_error() takes action based on the error returned by the drive.
109 * For normal I/O that may well include retries. We deal with
110 * both new-style (taskfile) and old style command handling here.
115 ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat) in ide_error() argument
120 err = ide_dump_status(drive, msg, stat); in ide_error()
122 rq = drive->hwif->rq; in ide_error()
126 /* retry only "normal" I/O: */ in ide_error()
129 struct ide_cmd *cmd = ide_req(rq)->special; in ide_error()
132 ide_complete_cmd(drive, cmd, stat, err); in ide_error()
134 scsi_req(rq)->result = 1; in ide_error()
135 ide_complete_pm_rq(drive, rq); in ide_error()
138 scsi_req(rq)->result = err; in ide_error()
139 ide_complete_rq(drive, err ? BLK_STS_IOERR : BLK_STS_OK, blk_rq_bytes(rq)); in ide_error()
143 return __ide_error(drive, rq, stat, err); in ide_error()
147 static inline void ide_complete_drive_reset(ide_drive_t *drive, blk_status_t err) in ide_complete_drive_reset() argument
149 struct request *rq = drive->hwif->rq; in ide_complete_drive_reset()
152 scsi_req(rq)->cmd[0] == REQ_DRIVE_RESET) { in ide_complete_drive_reset()
153 if (err <= 0 && scsi_req(rq)->result == 0) in ide_complete_drive_reset()
154 scsi_req(rq)->result = -EIO; in ide_complete_drive_reset()
155 ide_complete_rq(drive, err, blk_rq_bytes(rq)); in ide_complete_drive_reset()
164 * every 50ms during an atapi drive reset operation. If the drive has not yet
168 static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive) in atapi_reset_pollfunc() argument
170 ide_hwif_t *hwif = drive->hwif; in atapi_reset_pollfunc()
171 const struct ide_tp_ops *tp_ops = hwif->tp_ops; in atapi_reset_pollfunc()
174 tp_ops->dev_select(drive); in atapi_reset_pollfunc()
176 stat = tp_ops->read_status(hwif); in atapi_reset_pollfunc()
179 printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name); in atapi_reset_pollfunc()
181 if (time_before(jiffies, hwif->poll_timeout)) { in atapi_reset_pollfunc()
182 ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20); in atapi_reset_pollfunc()
187 hwif->polling = 0; in atapi_reset_pollfunc()
188 printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n", in atapi_reset_pollfunc()
189 drive->name, stat); in atapi_reset_pollfunc()
191 return do_reset1(drive, 1); in atapi_reset_pollfunc()
194 hwif->polling = 0; in atapi_reset_pollfunc()
195 ide_complete_drive_reset(drive, BLK_STS_OK); in atapi_reset_pollfunc()
208 printk(KERN_ERR "%s: reset: master: ", hwif->name); in ide_reset_report_error()
224 static ide_startstop_t reset_pollfunc(ide_drive_t *drive) in reset_pollfunc() argument
226 ide_hwif_t *hwif = drive->hwif; in reset_pollfunc()
227 const struct ide_port_ops *port_ops = hwif->port_ops; in reset_pollfunc()
231 if (port_ops && port_ops->reset_poll) { in reset_pollfunc()
232 err = port_ops->reset_poll(drive); in reset_pollfunc()
235 hwif->name, drive->name); in reset_pollfunc()
240 tmp = hwif->tp_ops->read_status(hwif); in reset_pollfunc()
243 if (time_before(jiffies, hwif->poll_timeout)) { in reset_pollfunc()
244 ide_set_handler(drive, &reset_pollfunc, HZ/20); in reset_pollfunc()
248 printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n", in reset_pollfunc()
249 hwif->name, tmp); in reset_pollfunc()
250 drive->failures++; in reset_pollfunc()
253 tmp = ide_read_error(drive); in reset_pollfunc()
256 printk(KERN_INFO "%s: reset: success\n", hwif->name); in reset_pollfunc()
257 drive->failures = 0; in reset_pollfunc()
260 drive->failures++; in reset_pollfunc()
265 hwif->polling = 0; /* done polling */ in reset_pollfunc()
266 ide_complete_drive_reset(drive, err); in reset_pollfunc()
270 static void ide_disk_pre_reset(ide_drive_t *drive) in ide_disk_pre_reset() argument
272 int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1; in ide_disk_pre_reset()
274 drive->special_flags = in ide_disk_pre_reset()
277 drive->mult_count = 0; in ide_disk_pre_reset()
278 drive->dev_flags &= ~IDE_DFLAG_PARKED; in ide_disk_pre_reset()
280 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 && in ide_disk_pre_reset()
281 (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) in ide_disk_pre_reset()
282 drive->mult_req = 0; in ide_disk_pre_reset()
284 if (drive->mult_req != drive->mult_count) in ide_disk_pre_reset()
285 drive->special_flags |= IDE_SFLAG_SET_MULTMODE; in ide_disk_pre_reset()
288 static void pre_reset(ide_drive_t *drive) in pre_reset() argument
290 const struct ide_port_ops *port_ops = drive->hwif->port_ops; in pre_reset()
292 if (drive->media == ide_disk) in pre_reset()
293 ide_disk_pre_reset(drive); in pre_reset()
295 drive->dev_flags |= IDE_DFLAG_POST_RESET; in pre_reset()
297 if (drive->dev_flags & IDE_DFLAG_USING_DMA) { in pre_reset()
298 if (drive->crc_count) in pre_reset()
299 ide_check_dma_crc(drive); in pre_reset()
301 ide_dma_off(drive); in pre_reset()
304 if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) { in pre_reset()
305 if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) { in pre_reset()
306 drive->dev_flags &= ~IDE_DFLAG_UNMASK; in pre_reset()
307 drive->io_32bit = 0; in pre_reset()
312 if (port_ops && port_ops->pre_reset) in pre_reset()
313 port_ops->pre_reset(drive); in pre_reset()
315 if (drive->current_speed != 0xff) in pre_reset()
316 drive->desired_speed = drive->current_speed; in pre_reset()
317 drive->current_speed = 0xff; in pre_reset()
321 * do_reset1() attempts to recover a confused drive by resetting it.
322 * Unfortunately, resetting a disk drive actually resets all devices on
324 * interface rather than resetting the drive.
332 * (up to 30 seconds worstcase). So, instead of busy-waiting here for it,
335 static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi) in do_reset1() argument
337 ide_hwif_t *hwif = drive->hwif; in do_reset1()
338 struct ide_io_ports *io_ports = &hwif->io_ports; in do_reset1()
339 const struct ide_tp_ops *tp_ops = hwif->tp_ops; in do_reset1()
343 int i; in do_reset1() local
346 spin_lock_irqsave(&hwif->lock, flags); in do_reset1()
349 BUG_ON(hwif->handler != NULL); in do_reset1()
352 if (drive->media != ide_disk && !do_not_try_atapi) { in do_reset1()
353 pre_reset(drive); in do_reset1()
354 tp_ops->dev_select(drive); in do_reset1()
356 tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET); in do_reset1()
358 hwif->poll_timeout = jiffies + WAIT_WORSTCASE; in do_reset1()
359 hwif->polling = 1; in do_reset1()
360 __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20); in do_reset1()
361 spin_unlock_irqrestore(&hwif->lock, flags); in do_reset1()
371 ide_port_for_each_present_dev(i, tdrive, hwif) { in do_reset1()
372 if ((tdrive->dev_flags & IDE_DFLAG_PARKED) && in do_reset1()
373 time_after(tdrive->sleep, timeout)) in do_reset1()
374 timeout = tdrive->sleep; in do_reset1()
381 spin_unlock_irqrestore(&hwif->lock, flags); in do_reset1()
382 timeout = schedule_timeout_uninterruptible(timeout - now); in do_reset1()
383 spin_lock_irqsave(&hwif->lock, flags); in do_reset1()
391 ide_port_for_each_dev(i, tdrive, hwif) in do_reset1()
394 if (io_ports->ctl_addr == 0) { in do_reset1()
395 spin_unlock_irqrestore(&hwif->lock, flags); in do_reset1()
396 ide_complete_drive_reset(drive, BLK_STS_IOERR); in do_reset1()
409 tp_ops->write_devctl(hwif, ATA_SRST | ATA_NIEN | ATA_DEVCTL_OBS); in do_reset1()
413 tp_ops->write_devctl(hwif, in do_reset1()
414 ((drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) ? 0 : ATA_NIEN) | in do_reset1()
418 hwif->poll_timeout = jiffies + WAIT_WORSTCASE; in do_reset1()
419 hwif->polling = 1; in do_reset1()
420 __ide_set_handler(drive, &reset_pollfunc, HZ/20); in do_reset1()
427 port_ops = hwif->port_ops; in do_reset1()
428 if (port_ops && port_ops->resetproc) in do_reset1()
429 port_ops->resetproc(drive); in do_reset1()
431 spin_unlock_irqrestore(&hwif->lock, flags); in do_reset1()
436 * ide_do_reset() is the entry point to the drive/interface reset code.
439 ide_startstop_t ide_do_reset(ide_drive_t *drive) in ide_do_reset() argument
441 return do_reset1(drive, 0); in ide_do_reset()