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  1. 05 12月, 2006 16 次提交
  3. 04 12月, 2006 18 次提交
  5. 03 12月, 2006 6 次提交
    • M
      [PATCH] sata_promise: PHYMODE4 fixup · 599b7202
      由 Mikael Pettersson 提交于 
      This patch adds code to fix up the PHYMODE4 "align timing"
register value on second-generation Promise SATA chips.
Failure to correct this value on non-x86 machines makes
drive detection prone to failure due to timeouts. (I've
observed about 50% detection failure rates on SPARC64.)

The HW boots with a bad value in this register, but on x86
machines the Promise BIOS corrects it to the value recommended
by the manual, so most people have been unaffected by this issue.

After developing the patch I checked Promise's SATAII driver,
and discovered that it also corrects PHYMODE4 just like this
patch does.

This patch depends on the sata_promise SATAII updates
patch I sent recently.
Signed-off-by: NMikael Pettersson <mikpe@it.uu.se>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      599b7202
    • T
      [PATCH] libata: always use polling IDENTIFY · 800b3996
      由 Tejun Heo 提交于 
      libata switched to IRQ-driven IDENTIFY when IRQ-driven PIO was
introduced.  This has caused a lot of problems including device
misdetection and phantom device.

ATA_FLAG_DETECT_POLLING was added recently to selectively use polling
IDENTIFY on problemetic drivers but many controllers and devices are
affected by this problem and trying to adding ATA_FLAG_DETECT_POLLING
for each such case is diffcult and not very rewarding.

This patch makes libata always use polling IDENTIFY.  This is
consistent with libata's original behavior and drivers/ide's behavior.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      800b3996
    • J
      [libata] pata_cs5535: fix build · 3ac551a6
      由 Jeff Garzik 提交于 
      Noticed by Tejun and others.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      3ac551a6
    • T
      [PATCH] ahci: do not powerdown during initialization · 8e16f941
      由 Tejun Heo 提交于 
      ahci_init_controller() calls ahci_deinit_port() to make sure the
controller is stopped before initializing the controller.  In turn,
ahci_deinit_port() invokes ahci_power_down() to power down the port.
If the controller supports slumber mode, the link is put into it.

Unfortunately, some devices don't implement link powersaving mode
properly and show erratic behavior after link is put into slumber
mode.  For example, HL-DT-ST DVD-RAM GSA-H30N completely locks up on
slumber transition and can only be recovered with the *REAL* hard
reset - power removal and reapply.

Note that this makes the first probing reset different from all
others.  If the above dvd-ram is hotplugged after ahci is initialized,
no problem occurs because ahci is already fully initialized with phy
powered up.  So, this might also be the reason for other weird AHCI
initial probing abnormalities.

This patch moves power up/down out of port init/deinit and call them
only when needed.

Power down is now called only when suspending.  As system suspend
usually involves powering down 12v for storage devices, this shouldn't
cause problem even if the attached device doesn't support slumber
mode.  However, in partial power management and suspend failure cases,
devices might lock up after suspend attempt.  I thought about removing
transition to slumber mode altogether but ahci spec mandates it before
HBA D3 state transition.  Blacklisting such devices might be the
solution.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      8e16f941
    • T
      [PATCH] libata: prepare ata_sg_clean() for invocation from EH · 70e6ad0c
      由 Tejun Heo 提交于 
      Make ata_sg_clean() global and don't allow NCQ for internal commands.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      70e6ad0c
    • T
      [PATCH] libata: separate out rw ATA taskfile building into ata_build_rw_tf() · bd056d7e
      由 Tejun Heo 提交于 
      Separate out rw ATA taskfile building from ata_scsi_rw_xlat() into
ata_build_rw_tf().  This will be used to improve media error handling.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      bd056d7e