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  1. 15 5月, 2006 9 次提交
    • T
      [PATCH] libata: implement ATA printk helpers · 61440db6
      由 Tejun Heo 提交于 
      Implement ata_{port|dev}_printk() which prefixes the message with
proper identification string.  This change is necessary for later PM
support because devices and links should be identified differently
depending on how they are attached.

This also helps unifying device id strings.  Currently, there are two
forms in use (P is the port number D device number) - 'ataP(D):', and
'ataP: dev D '.  These macros also make it harder to forget proper ID
string (e.g. printing only port number when a device is in question).

Debug message handling can be integrated into these printk macros by
passing debug type and level via @lv.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      61440db6
    • T
      [PATCH] libata: use dev->ap · 3373efd8
      由 Tejun Heo 提交于 
      Use dev->ap where possible and eliminate superflous @ap from functions
and structures.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      3373efd8
    • T
      [PATCH] libata: add dev->ap · 38d87234
      由 Tejun Heo 提交于 
      Add dev->ap which points back to the port the device belongs to.  This
makes it unnecessary to pass @ap for silly reasons (e.g. printks).
Also, this change is necessary to accomodate later PM support which
will introduce ATA link inbetween port and device.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      38d87234
    • T
      [PATCH] libata: kill old SCR functions and sata_dev_present() · a0ab51ce
      由 Tejun Heo 提交于 
      Kill now unused scr_{read|write|write_flush}() and sata_dev_present().
Signed-off-by: NTejun Heo <htejun@gmail.com>
      a0ab51ce
    • T
      [PATCH] libata: implement new SCR handling and port on/offline functions · 34bf2170
      由 Tejun Heo 提交于 
      Implement ata_scr_{valid|read|write|write_flush}() and
ata_port_{online|offline}().  These functions replace
scr_{read|write}() and sata_dev_present().

Major difference between between the new SCR functions and the old
ones is that the new ones have a way to signal error to the caller.
This makes handling SCR-available and SCR-unavailable cases in the
same path easier.  Also, it eases later PM implementation where SCR
access can fail due to various reasons.

ata_port_{online|offline}() functions return 1 only when they are
affirmitive of the condition.  e.g.  if SCR is unaccessible or
presence cannot be determined for other reasons, these functions
return 0.  So, ata_port_online() != !ata_port_offline().  This
distinction is useful in many exception handling cases.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      34bf2170
    • T
      [PATCH] libata: implement qc->result_tf · e61e0672
      由 Tejun Heo 提交于 
      Add qc->result_tf and ATA_QCFLAG_RESULT_TF.  This moves the
responsibility of loading result TF from post-compltion path to qc
execution path.  qc->result_tf is loaded if explicitly requested or
the qc failsa.  This allows more efficient completion implementation
and correct handling of result TF for controllers which don't have
global TF representation such as sil3124/32.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      e61e0672
    • T
      [PATCH] libata: use preallocated buffers · fe635c7e
      由 Tejun Heo 提交于 
      It's not a very good idea to allocate memory during EH.  Use
statically allocated buffer for dev->id[] and add 512byte buffer
ap->sector_buf.  This buffer is owned by EH (or probing) and to be
used as temporary buffer for various purposes (IDENTIFY, NCQ log page
10h, PM GSCR block).
Signed-off-by: NTejun Heo <htejun@gmail.com>
      fe635c7e
    • T
      [PATCH] libata: kill duplicate prototypes · 6cd727b1
      由 Tejun Heo 提交于 
      Kill duplicate prototypes for ata_eh_qc_complete/retry() in libata.h.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      6cd727b1
    • T
      [PATCH] libata: rename ata_down_sata_spd_limit() and friends · 3c567b7d
      由 Tejun Heo 提交于 
      Rename ata_down_sata_spd_limit() and friends to sata_down_spd_limit()
and likewise for simplicity & consistency.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      3c567b7d
  3. 12 4月, 2006 5 次提交
  5. 11 4月, 2006 1 次提交
  7. 04 4月, 2006 1 次提交
  9. 02 4月, 2006 10 次提交
  11. 30 3月, 2006 3 次提交
    • A
      [PATCH] libata: Simplex and other mode filtering logic · 5444a6f4
      由 Alan Cox 提交于 
      Add a field to the host_set called 'flags' (was host_set_flags changed
to suit Jeff)
Add a simplex_claimed field so we can remember who owns the DMA channel
Add a ->mode_filter() hook to allow drivers to filter modes
Add docs for mode_filter and set_mode
Filter according to simplex state
Filter cable in core

This provides the needed framework to support all the mode rules found
in the PATA world. The simplex filter deals with 'to spec' simplex DMA
systems found in older chips. The cable filter avoids duplicating the
same rules in each chip driver with PATA. Finally the mode filter is
neccessary because drive/chip combinations have errata that forbid
certain modes with some drives or types of ATA object.

Drive speed setup remains per channel for now and the filters now use
the framework Tejun put into place which cleans them up a lot from the
older libata-pata patches.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      5444a6f4
    • A
      [PATCH] libata: Add ->set_mode hook for odd drivers · e35a9e01
      由 Alan Cox 提交于 
      Some hardware doesn't want the usual mode setup logic running. This
allows the hardware driver to replace it for special cases in the least
invasive way possible.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      e35a9e01
    • A
      [PATCH] libata: BMDMA handling updates · 4e5ec5db
      由 Alan Cox 提交于 
      This is the minimal patch set to enable the current code to be used with
a controller following SFF (ie any PATA and early SATA controllers)
safely without crashes if there is no BMDMA area or if BMDMA is not
assigned by the BIOS for some reason.

Simplex status is recorded but not acted upon in this change, this isn't
a problem with the current drivers as none of them are for simplex
hardware. A following diff will deal with that.

The flags in the probe structure remain ->host_set_flags although Jeff
asked me to rename them, simply because the rename would break the usual
Linux rules that old code should break when there are changes. not
compile and run and then blow up/eat your computer/etc. Renaming this
later is a trivial exercise once a better name is chosen.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      4e5ec5db
  13. 25 3月, 2006 1 次提交
  15. 24 3月, 2006 4 次提交
  17. 22 3月, 2006 3 次提交
  19. 12 3月, 2006 3 次提交