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  1. 21 12月, 2006 7 次提交
  3. 16 12月, 2006 10 次提交
  5. 14 12月, 2006 1 次提交
  7. 07 12月, 2006 4 次提交
    • A
      [PATCH] libata: Incorrect timing computation for PIO5/6 · fd3367af
      由 Alan 提交于 
      The ata timing computation code makes some mistakes in PIO5/6 because a
check was not updated correctly when I put this support into the kernel.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      fd3367af
    • M
      [PATCH] sata_promise: new EH conversion, take 2 · 25b93d81
      由 Mikael Pettersson 提交于 
      This patch converts sata_promise to use new-style libata error
handling on Promise SATA chips, for both SATA and PATA ports.

* ATA_FLAG_SRST is no longer set
* ->phy_reset is no longer set as it is unused when ->error_handler
   is present, and pdc_sata_phy_reset() has been removed
* pdc_freeze() masks interrupts and halts DMA via PDC_CTLSTAT
* pdc_thaw() clears interrupt status in PDC_INT_SEQMASK and then
  unmasks interrupts in PDC_CTLSTAT
* pdc_error_handler() reinitialises the port if it isn't frozen,
  and then invokes ata_do_eh() with standard {s,}ata reset methods
* pdc_post_internal_cmd() resets the port in case of errors
* the PATA-only 20619 chip continues to use old-style EH:
  not by necessity but simply because I don't have documentation
  for it or any way to test it

Since the previous version pdc_error_handler() has been rewritten
and it now mostly matches ahci and sata_sil24. In case anyone
wonders: the call to pdc_reset_port() isn't a heavy-duty reset,
it's a light-weight reset to quickly put a port into a sane state.

The discussion about the PCI flushes in pdc_freeze() and pdc_thaw()
seemed to end with a consensus that the flushes are OK and not
obviously redundant, so I decided to keep them for now.

This patch was prepared against 2.6.19-git7, but it also applies
to 2.6.19 + libata #upstream, with or without the revised sata_promise
cleanup patch I recently submitted.

This patch does conflict with the #promise-sata-pata patch:
this patch removes pdc_sata_phy_reset() while #promise-sata-pata
modifies it. The correct patch resolution is to remove the function.

Tested on 2037x and 2057x chips, with PATA patches on top and disks
on both SATA and PATA ports.
Signed-off-by: NMikael Pettersson <mikpe@it.uu.se>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      25b93d81
    • A
      [PATCH] libata: let ATA_FLAG_PIO_POLLING use polling pio for ATA_PROT_NODATA · e3472cbe
      由 Albert Lee 提交于 
      Even if ATA_FLAG_PIO_POLLING is set, libata uses irq pio for the ATA_PROT_NODATA protocol.
This patch let ATA_FLAG_PIO_POLLING use polling pio for the ATA_PROT_NODATA protocol.
Signed-off-by: NAlbert Lee <albertcc@tw.ibm.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      e3472cbe
    • M
      [PATCH] sata_promise: cleanups, take 2 · d324d462
      由 Mikael Pettersson 提交于 
      This patch performs two simple cleanups of sata_promise.

* Remove board_20771 and map device id 0x3577 to board_2057x.
  After the recent corrections for SATAII chips, board_20771 and
  board_2057x were equivalent in the driver.

* Remove hp->hotplug_offset and use hp->flags & PDC_FLAG_GEN_II
  to compute hotplug_offset in pdc_host_init(). hp->hotplug_offset
  was used to distinguish 1st and 2nd generation chips in one
  particular case, but now we have that information in a more
  general form in hp->flags, so hp->hotplug_offset is redundant.

Changes since previous submission: rebased on libata-dev #upstream,
cleaned up hotplug_offset computation based on Tejun's comments,
expanded hotplug_offset removal rationale.

This patch does not depend on the pending new EH conversion patch.
Signed-off-by: NMikael Pettersson <mikpe@it.uu.se>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      d324d462
  9. 05 12月, 2006 7 次提交
  11. 03 12月, 2006 11 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
    • T
      [PATCH] libata: implement ata_exec_internal_sg() · 2432697b
      由 Tejun Heo 提交于 
      Sg'ify ata_exec_internal() and call it ata_exec_internal_sg().
Wrapper function around ata_exec_internal_sg() is implemented to
provide ata_exec_internal() interface.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      2432697b
    • T
      [PATCH] libata: make sure IRQ is cleared after ata_bmdma_freeze() · 0f0a3ad3
      由 Tejun Heo 提交于 
      Now that BMDMA status is recorded in irq handler.  ata_bmdma_freeze()
is free to manipulate host status.  Under certain circumstances, some
controllers (ICH7 in enhanced mode w/ IRQ shared) raise IRQ when CTL
register is written to and ATA_NIEN doesn't mask it.

This patch makes ata_bmdma_freeze() clear all pending IRQs after
freezing a port.  This change makes explicit clearing in
ata_device_add() unnecessary and thus kills it.  The removed code was
SFF-specific and was in the wrong place.

Note that ->freeze() handler is always called under ap->lock held and
irq disabled.  Even if CTL manipulation causes stuck IRQ, it's cleared
immediately.  This should be safe (enough) even in SMP environment.
More correct solution is to mask the IRQ from IRQ controller but that
would be an overkill.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      0f0a3ad3
    • T
      [PATCH] libata: move BMDMA host status recording from EH to interrupt handler · ea54763f
      由 Tejun Heo 提交于 
      For certain errors, interrupt handler alter BMDMA host status before
entering EH (clears active and intr).  Thus altered BMDMA host status
value is recorded by BMDMA EH and reported to user.  Move BMDMA host
status recording from EH to interrupt handler.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      ea54763f
    • T
      [PATCH] libata: make sure sdev doesn't go away while rescanning · f84e7e41
      由 Tejun Heo 提交于 
      ata_scsi_dev_rescan() doesn't synchronize against SCSI device detach
and the target sdev might go away in the middle.  Fix it.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      f84e7e41
    • T
      [PATCH] libata: don't request sense if the port is frozen · a569a30d
      由 Tejun Heo 提交于 
      If EH command is issued to a frozen port, it fails with AC_ERR_SYSTEM.
libata used to request sense even when the port is frozen needlessly
adding AC_ERR_SYSTEM to err_mask.  Don't do it.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      a569a30d