linux-toradex.git/drivers/ide/ide-iops.c, branch v3.10.78

ide: add SATA cable detection support

2010-01-19T09:41:57+00:00

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: David S. Miller

ide: fixup for fujitsu disk

2009-09-15T08:36:25+00:00

This patch will fix the following problem on Yeeloong netbook with
fujitsu disk.

irq 14: nobody cared (try booting with the "irqpoll" option)
Call Trace:
[] dump_stack+0x8/0x40
[] __report_bad_irq+0x58/0xe4
[] note_interrupt+0x17c/0x23c
[] handle_level_irq+0xcc/0x134
[] mach_irq_dispatch+0xb8/0x1e0
[] ret_from_irq+0x0/0x4
[] free_hot_cold_page+0x224/0x2a0
[] swsusp_free+0xb0/0x14c
[] hibernate+0x198/0x218
[] state_store+0x90/0x138
[] sysfs_write_file+0x130/0x194
[] vfs_write+0xb8/0x180
[] SyS_write+0x50/0x98
[] handle_sys+0x158/0x174

handlers:
[] (ide_intr+0x0/0x300)
Disabling IRQ #14

References:

1. commit 1fde02e7146d4a1bab80fd1506f9018fe71e8521 of
git://dev.lemote.com/linux_loongson.git
2. 8bc1e5aa06a2a9a425c4a6795fc564cba1521487 (ide: respect quirk_drives[]
list on all controllers)

Signed-off-by: Yan Hua 
Signed-off-by: Wu Zhangjin 
Signed-off-by: David S. Miller

ide: fix races in handling of user-space SET XFER commands

2009-08-07T17:43:00+00:00

* Make cmd->tf_flags field 'u16' and add IDE_TFLAG_SET_XFER taskfile flag.

* Update ide_finish_cmd() to set xfer / re-read id if the new flag is set.

* Convert set_xfer_rate() (write handler for /proc/ide/hd?/current_speed)
  and ide_cmd_ioctl() (HDIO_DRIVE_CMD ioctl handler) to use the new flag.

* Remove no longer needed disable_irq_nosync() + enable_irq() from
  ide_config_drive_speed().

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: David S. Miller

ide: allow ide_dev_read_id() to be called from the IRQ context

2009-08-07T17:42:59+00:00

* Un-static __ide_wait_stat().

* Allow ide_dev_read_id() helper to be called from the IRQ context by
  adding irq_ctx flag and using mdelay()/__ide_wait_stat() when needed.

* Switch ide_driveid_update() to set irq_ctx flag.

This change is needed for the consecutive patch which fixes races in
handling of user-space SET XFER commands but for improved bisectability
and clarity it is better to do it in a separate patch.

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: David S. Miller

ide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[]

2009-06-24T07:32:32+00:00

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: David S. Miller

ide: relax DMA info validity checking

2009-06-24T07:32:32+00:00

There are some broken devices that report multiple DMA xfer modes
enabled at once (ATA spec doesn't allow it) but otherwise work fine
with DMA so just delete ide_id_dma_bug().

[ As discovered by detective work by Frans and Bart, due to how
  handling of the ID block was handled before commit c419993
  ("ide-iops: only clear DMA words on setting DMA mode") this
  check was always seeing zeros in the fields or other similar
  garbage.  Therefore this check wasn't actually checking anything.
  Now that the tests actually check the real bits, all we see are
  devices that trigger the check yet work perfectly fine, therefore
  killing this useless check is the best thing to do. -DaveM ]

Reported-by: Frans Pop 
Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: David S. Miller

ide: add IDE_DFLAG_NIEN_QUIRK device flag

2009-06-07T13:37:10+00:00

Add IDE_DFLAG_NIEN_QUIRK device flag and use it instead of
drive->quirk_list.

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov 
Signed-off-by: Bartlomiej Zolnierkiewicz

ide: respect quirk_drives[] list on all controllers

2009-06-07T13:37:09+00:00

* Add ide_check_nien_quirk_list() helper to the core code
  and then use it in ide_port_tune_devices().

* Remove no longer needed ->quirkproc methods from hpt366.c
  and pdc202xx_{new,old}.c.

Acked-by: Sergei Shtylyov 
Signed-off-by: Bartlomiej Zolnierkiewicz

ide: remove superfluous SELECT_MASK() call from ide_driveid_update()

2009-06-07T13:37:06+00:00

We always call SELECT_MASK(drive, 0) after ide_dev_read_id() call
so there is no need to do it again in the error path.

Moreover with the combination of HPT36x controller and the drive on
the quirk_drives[] list this can result in superfluous enable_irq()
call which in turn will trigger WARN() in __enable_irq().

Acked-by: Sergei Shtylyov 
Signed-off-by: Bartlomiej Zolnierkiewicz

ide: fix 40-wire cable detection for TSST SH-S202* ATAPI devices (v2)

2009-05-22T14:23:36+00:00

Since 2.6.26 we support UDMA66 on ATAPI devices requiring IVB quirk:

  commit 8588a2b732928b343233af9b1855705b8286bed4
  ("ide: add SH-S202J to ivb_list[]")

We also later added support for more such devices in:

  commit e97564f362a93f8c248246c19828895950341252
  ("ide: More TSST drives with broken cable detection")

and in:

  commit 3ced5c49bd2d1f2c7f769e3a54385883de63a652
  ("ide: add TSSTcorp CDDVDW SH-S202H to ivb_list[]")

It turns out that such devices lack cable detection altogether
(which in turn results in incorrect detection of 40-wire cables
by our current cable detection strategy) so always handle them
by trusting host-side cable detection only.

v2:
Model detection fixup from Martin.

Reported-and-tested-by: Martin Lottermoser 
Signed-off-by: Bartlomiej Zolnierkiewicz