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  1. 27 5月, 2007 19 次提交
  3. 24 5月, 2007 7 次提交
  5. 23 5月, 2007 2 次提交
  7. 22 5月, 2007 4 次提交
    • S
      [SCSI] aacraid: add support for FUA · 9d399cc7
      由 Salyzyn, Mark 提交于 
      Back in the beginning of last year we disabled mode page 8 and mode page
3f requests through device quirk bits instead of enhancing the driver to
respond to these mode pages because there was no apparent added value.

The Firmware that supports the new communication commands supports the
ability to force a write around of the adapter cache on a command by
command basis. In the attached patch we enable mode page 8 and 3f and
spoof the results as needed in order to *convince* the layers above to
submit writes with the FUA (Force Unit Attention) bit set if the file
system or application requires it, if the Firmware supports the write
through, or instead to submit a SYNCHRONIZE_CACHE if the Firmware does
not. The added value here is for file systems that benefit from this
functionality and for clustering or redundancy scenarios.

Caveats: By convince, we are responding with a minimal short 3 byte
content mode page 8, with only the data the SCSI layer needs and that we
can fill confidently. Applications that require the customarily larger
mode page 8 results may be confused by this(?). The FUA, or the
SYNCHRONIZE_CACHE only affect the cache on the controller. Our firmware
by default ensure that the underlying physical drives of the array have
their cache turned off so normally this is not a problem.

This attached patch is against current scsi-misc-2.6 and was unit tested
on RHEL5. Since this is a feature enhancement, it should not be
considered for any current stabilization efforts.
Signed-off-by: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      9d399cc7
    • C
      [SCSI] aha152x: use wait_for_completion_timeout · 0f06bb34
      由 Christoph Hellwig 提交于 
      Use wait_for_completion_timeout instead a semaphore + timer.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      0f06bb34
    • T
      [SCSI] kill scsi host template suspend/resume · 1dfcda06
      由 Tejun Heo 提交于 
      With libata converted to use sdev->manage_start_stop for suspend and
resume, sht->suspend/resume() has no user left and low level
suspend/ressume should be taken care of by low level driver's
suspend/resume callbacks (e.g. PCI or PCMCIA driver callbacks).  This
patch removes sht->suspend/resume() callbacks.

This change is suggested by Christoph Hellwig.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      1dfcda06
    • J
      [SCSI] ibmmca: convert to new probing API and fix oopses · 67b2009a
      由 James Bottomley 提交于 
      This is basically a straight conversion.  I have one of these things, so
I know it works ... my problem is that it has a wierd SCA like
connector, so I can't connect anything to it (no cables).

However, previously it panic'd in the interrupt, now it completes a bus
scan.
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      67b2009a
  9. 16 5月, 2007 8 次提交