• kashyap.desai@lsi.com's avatar
    [SCSI] mptfusion: Fix for device offline while doing aggressive HBA reset · 98cbe371
    kashyap.desai@lsi.com authored
    [Resend patch as per Bernd Schubert comment ]
    
    Issue:
    
    Device goes offline while doing aggressive HBA reset
    along with IO using some utility.
    
    Root cause:
    
    FW goes into bad state due to aggressive reset. Softreset does not
    help to recover FW. And also aggressive reset open up the window for
    Error handling thread to kicked off at the same time HBA will be in
    constant RESET loop as part of aggressive reset test case can lead
    Device to goes offline.
    
    Changes:
    
    1. Added extra check as below inside eh_timed_out call back as below.
       if(ioc->ioc_reset_in_progress) Rc = EH_TIMER_RESET
    
    2. Removed " DOORBELL_ACTIVE" check for SAS controller from task
       management context.  Since SAS controller uses high priority queue
       for task management. This check is not required for SAS controller.
    
    3. Moved SoftReset call to HardReset from Task Mgmt context.
    Signed-off-by: default avatarKashyap Desai <kashyap.desai@lsi.com>
    Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
    98cbe371
mptsas.c 147 KB