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  1. 31 8月, 2007 1 次提交
  3. 15 8月, 2007 2 次提交
  5. 01 8月, 2007 3 次提交
  7. 25 7月, 2007 1 次提交
  9. 13 7月, 2007 1 次提交
    • T
      ata_piix: kill incorrect invalid map value warning · e04b3b9d
      由 Tejun Heo 提交于 
      The last two slots of MAP 00b of ich6m was incorrectly marked as
reserved.  This is left over from converting the entry to allow 00b.
This causes no real problem.  It only makes the driver print annoying
warning message.  Fix it.

[patch also proferred by Pierre Tardy at the end of 2006 -jg]
Signed-off-by: NTejun Heo <htejun@gmail.com>
--
 drivers/ata/ata_piix.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      e04b3b9d
  11. 12 7月, 2007 1 次提交
    • A
      PCI: Change all drivers to use pci_device->revision · 44c10138
      由 Auke Kok 提交于 
      Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>
Acked-by: NDave Jones <davej@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      44c10138
  13. 10 7月, 2007 3 次提交
  15. 25 5月, 2007 1 次提交
  17. 22 5月, 2007 1 次提交
  19. 12 5月, 2007 2 次提交
    • T
      libata: clean up SFF init mess · 1626aeb8
      由 Tejun Heo 提交于 
      The intention of using port_mask in SFF init helpers was to eventually
support exoctic configurations such as combination of legacy and
native port on the same controller.  This never became actually
necessary and the related code always has been subtly broken one way
or the other.  Now that new init model is in place, there is no reason
to make common helpers capable of handling all corner cases.  Exotic
cases can simply dealt within LLDs as necessary.

This patch removes port_mask handling in SFF init helpers.  SFF init
helpers don't take n_ports argument and interpret it into port_mask
anymore.  All information is carried via port_info.  n_ports argument
is dropped and always two ports are allocated.  LLD can tell SFF to
skip certain port by marking it dummy.  Note that SFF code has been
treating unuvailable ports this way for a long time until recent
breakage fix from Linus and is consistent with how other drivers
handle with unavailable ports.

This fixes 1-port legacy host handling still broken after the recent
native mode fix and simplifies SFF init logic.  The following changes
are made...

* ata_pci_init_native_host() and ata_init_legacy_host() both now try
  to initialized whatever they can and mark failed ports dummy.  They
  return 0 if any port is successfully initialized.

* ata_pci_prepare_native_host() and ata_pci_init_one() now doesn't
  take n_ports argument.  All info should be specified via port_info
  array.  Always two ports are allocated.

* ata_pci_init_bmdma() exported to be used by LLDs in exotic cases.

* port_info handling in all LLDs are standardized - all port_info
  arrays are const stack variable named ppi.  Unless the second port
  is different from the first, its port_info is specified as NULL
  (tells libata that it's identical to the last non-NULL port_info).

* pata_hpt37x/hpt3x2n: don't modify static variable directly.  Make an
  on-stack copy instead as ata_piix does.

* pata_uli: It has 4 ports instead of 2.  Don't use
  ata_pci_prepare_native_host().  Allocate the host explicitly and use
  init helpers.  It's simple enough.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      1626aeb8
    • T
      libata: reimplement suspend/resume support using sdev->manage_start_stop · 9666f400
      由 Tejun Heo 提交于 
      Reimplement suspend/resume support using sdev->manage_start_stop.

* Device suspend/resume is now SCSI layer's responsibility and the
  code is simplified a lot.

* DPM is dropped.  This also simplifies code a lot.  Suspend/resume
  status is port-wide now.

* ata_scsi_device_suspend/resume() and ata_dev_ready() removed.

* Resume now has to wait for disk to spin up before proceeding.  I
  couldn't find easy way out as libata is in EH waiting for the
  disk to be ready and sd is waiting for EH to complete to issue
  START_STOP.

* sdev->manage_start_stop is set to 1 in ata_scsi_slave_config().
  This fixes spindown on shutdown and suspend-to-disk.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      9666f400
  21. 01 5月, 2007 1 次提交
    • T
      libata: add deadline support to prereset and reset methods · d4b2bab4
      由 Tejun Heo 提交于 
      Add @deadline to prereset and reset methods and make them honor it.
ata_wait_ready() which directly takes @deadline is implemented to be
used as the wait function.  This patch is in preparation for EH timing
improvements.

* ata_wait_ready() never does busy sleep.  It's only used from EH and
  no wait in EH is that urgent.  This function also prints 'be
  patient' message automatically after 5 secs of waiting if more than
  3 secs is remaining till deadline.

* ata_bus_post_reset() now fails with error code if any of its wait
  fails.  This is important because earlier reset tries will have
  shorter timeout than the spec requires.  If a device fails to
  respond before the short timeout, reset should be retried with
  longer timeout rather than silently ignoring the device.

  There are three behavior differences.

  1. Timeout is applied to both devices at once, not separately.  This
     is more consistent with what the spec says.

  2. When a device passes devchk but fails to become ready before
     deadline.  Previouly, post_reset would just succeed and let
     device classification remove the device.  New code fails the
     reset thus causing reset retry.  After a few times, EH will give
     up disabling the port.

  3. When slave device passes devchk but fails to become accessible
     (TF-wise) after reset.  Original code disables dev1 after 30s
     timeout and continues as if the device doesn't exist, while the
     patched code fails reset.  When this happens, new code fails
     reset on whole port rather than proceeding with only the primary
     device.

  If the failing device is suffering transient problems, new code
  retries reset which is a better behavior.  If the failing device is
  actually broken, the net effect is identical to it, but not to the
  other device sharing the channel.  In the previous code, reset would
  have succeeded after 30s thus detecting the working one.  In the new
  code, reset fails and whole port gets disabled.  IMO, it's a
  pathological case anyway (broken device sharing bus with working
  one) and doesn't really matter.

* ata_bus_softreset() is changed to return error code from
  ata_bus_post_reset().  It used to return 0 unconditionally.

* Spin up waiting is to be removed and not converted to honor
  deadline.

* To be on the safe side, deadline is set to 40s for the time being.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      d4b2bab4
  23. 29 4月, 2007 2 次提交
  25. 09 3月, 2007 1 次提交
  27. 03 3月, 2007 1 次提交
  29. 26 2月, 2007 1 次提交
  31. 23 2月, 2007 1 次提交
  33. 10 2月, 2007 8 次提交
  35. 08 2月, 2007 2 次提交
  37. 16 12月, 2006 2 次提交
  39. 05 12月, 2006 1 次提交
  41. 03 12月, 2006 1 次提交
    • 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
  43. 02 12月, 2006 3 次提交
    • T
      [PATCH] ata_piix: strip now unneded MAP related stuff · 5e56a37c
      由 Tejun Heo 提交于 
      Now that PCS isn't used for device detection anymore...

* esb_sata is identical to ich5_sata
* no reason to know present_shift
* no reason to store map_db in host private area

The MAP table itself is left because it can be used for SCR access.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      5e56a37c
    • T
      [PATCH] ata_piix: apply device detection via polling IDENTIFY · 228c1590
      由 Tejun Heo 提交于 
      PATA PIIX uses reset signature + TF r/w test for device presence
detection, which doesn't always work.  It sometimes reports phantom
device which results in IDENTIFY timeouts.

SATA PIIX uses some combination of PCS + reset signature + TF r/w test
for device presence detection.  No combination satifies all and for
some controllers, there doesn't seem to be any combination which
works reliably.

This patch makes both PATA and SATA piix's use reset signature + TF
r/w + polling IDENTIFY for device detection.  This is what the old
libata (before irq-pio and new EH) did and what IDE does.

This patch also removes now obsolete PIIX_FLAG_IGNORE_PCS, force_pcs
and related code.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      228c1590
    • T
      [PATCH] ata_piix: clean up port flags · b3362f88
      由 Tejun Heo 提交于 
      * move common flags into PIIX_PATA_FLAGS and PIIX_SATA_FLAGS
* kill unnecessary ATA_FLAG_SRST
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      b3362f88