1. 23 Jul, 2008 5 commits
  2. 21 Jul, 2008 3 commits
  3. 16 Jul, 2008 2 commits
  4. 15 Jul, 2008 27 commits
  5. 14 Jul, 2008 1 commit
    • Stefan Richter's avatar
      scsi: sd: optionally set power condition in START STOP UNIT · d2886ea3
      Stefan Richter authored
      Adds a new scsi_device flag, start_stop_pwr_cond:  If enabled, the sd
      driver will not send plain START STOP UNIT commands but ones with the
      power condition field set to 3 (standby) or 1 (active) respectively.
      
      Some FireWire disk firmwares do not stop the motor if power condition is
      zero.  Or worse, they become unresponsive after a START STOP UNIT with
      power condition = 0 and start = 0.
      
      http://lkml.org/lkml/2008/4/29/704
      
      
      
      This patch only adds the necessary code to sd_mod but doesn't activate
      it.  Follow-up patches to the FireWire drivers will add detection of
      affected devices and enable the code for them.
      
      I did not add power condition values to scsi_error.c::scsi_eh_try_stu()
      for now.  The three firmwares which suffer from above mentioned problems
      do not need START STOP UNIT in the error handler, and they are not
      adversely affected by START STOP UNIT with power condition = 0 and start
      = 1 (like scsi_eh_try_stu() sends it if scsi_device.allow_restart is
      enabled).
      Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
      Tested-by: default avatarTino Keitel <tino.keitel@gmx.de>
      d2886ea3
  6. 12 Jul, 2008 2 commits