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  1. 03 1月, 2008 2 次提交
  3. 13 10月, 2007 1 次提交
  5. 28 1月, 2007 1 次提交
  7. 14 1月, 2007 1 次提交
  9. 12 10月, 2006 1 次提交
    • M
      [SCSI] Add ability to scan scsi busses asynchronously · 3e082a91
      由 Matthew Wilcox 提交于 
      Since it often takes around 20-30 seconds to scan a scsi bus, it's
highly advantageous to do this in parallel with other things.  The bulk
of this patch is ensuring that devices don't change numbering, and that
all devices are discovered prior to trying to start init.  For those
who build SCSI as modules, there's a new scsi_wait_scan module that will
ensure all bus scans are finished.

This patch only handles drivers which call scsi_scan_host.  Fibre Channel,
SAS, SATA, USB and Firewire all need additional work.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      3e082a91
  11. 03 9月, 2006 1 次提交
  13. 10 7月, 2006 1 次提交
    • C
      [SCSI] hide EH backup data outside the scsi_cmnd · 631c228c
      由 Christoph Hellwig 提交于 
      Currently struct scsi_cmnd has various fields that are used to backup
original data after the corresponding fields have been overridden for
EH commands.  This means drivers can easily get at it and misuse it.
Due to the old_ naming this doesn't happen for most of them, but two
that have different names have been used wrong a lot (see previous
patch).  Another downside is that they unessecarily bloat the scsi_cmnd
size.

This patch moves them onstack in scsi_send_eh_cmnd to fix those two
issues aswell as allowing future EH fixes like moving the EH command
submissions to use SG lists like everything else.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      631c228c
  15. 01 7月, 2006 1 次提交
  17. 27 6月, 2006 1 次提交
  19. 11 6月, 2006 1 次提交
  21. 20 5月, 2006 1 次提交
  23. 15 5月, 2006 1 次提交
    • T
      [PATCH] SCSI: implement shost->host_eh_scheduled · ee7863bc
      由 Tejun Heo 提交于 
      libata needs to invoke EH without scmd.  This patch adds
shost->host_eh_scheduled to implement such behavior.

Currently the only user of this feature is libata and no general
interface is defined.  This patch simply adds handling for
host_eh_scheduled where needed and exports scsi_eh_wakeup() to
modules.  The rest is upto libata.  This is the result of the
following discussion.

http://thread.gmane.org/gmane.linux.scsi/23853/focus=9760

In short, SCSI host is not supposed to know about exceptions unrelated
to specific device or command.  Such exceptions should be handled by
transport layer proper.  However, the distinction is not essential to
ATA and libata is planning to depart from SCSI, so, for the time
being, libata will be using SCSI EH to handle such exceptions.
Signed-off-by: NTejun Heo <htejun@gmail.com>
      ee7863bc
  25. 15 1月, 2006 1 次提交
    • C
      [SCSI] remove target parent limitiation · e02f3f59
      由 Christoph Hellwig 提交于 
      When James Smart fixed the issue of the userspace scan atributes
crashing the system with the FC transport class he added a patch to
let the transport class check if the parent is valid for a given
transport class.

When adding support for the integrated raid of fusion sas devices
we ran into a problem with that, as it didn't allow adding virtual
raid volumes without the transport class knowing about it.

So this patch adds a user_scan attribute instead, that takes over from
scsi_scan_host_selected if the transport class sets it and thus lets
the transport class control the user-initiated scanning.  As this
plugs the hole about user-initiated scanning the target_parent hook
goes away and we rely on callers of the scanning routines to do
something sensible.

For SAS this meant I had to switch from a spinlock to a mutex to
synchronize the topology linked lists, in FC they were completely
unsynchronized which seems wrong.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      e02f3f59
  27. 09 1月, 2006 1 次提交
  29. 15 12月, 2005 1 次提交
    • M
      [SCSI] Convert SCSI mid-layer to scsi_execute_async · 6e68af66
      由 Mike Christie 提交于 
      Add scsi helpers to create really-large-requests and convert
scsi-ml to scsi_execute_async().

Per Jens's previous comments, I placed this function in scsi_lib.c.
I made it follow all the queue's limits - I think I did at least :), so
I removed the warning on the function header.

I think the scsi_execute_* functions should eventually take a request_queue
and be placed some place where the dm-multipath hw_handler can use them
if that failover code is going to stay in the kernel. That conversion
patch will be sent in another mail though.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      6e68af66
  31. 14 12月, 2005 1 次提交
  33. 07 11月, 2005 1 次提交
  35. 09 9月, 2005 1 次提交
  37. 07 9月, 2005 1 次提交
  39. 27 6月, 2005 2 次提交
  41. 24 6月, 2005 1 次提交
  43. 19 4月, 2005 1 次提交
  45. 17 4月, 2005 2 次提交