• Kashyap, Desai's avatar
    [SCSI] mpt2sas: Added command line option diag_buffer_enable. · 32e0eb56
    Kashyap, Desai authored
    Added command line option diag_buffer_enable. When the command line option is
    set, the driver will automatically post diag buffers at driver load time.
    The command line option diag_buffer_enable is bitwise, so it's possible to
    enable both and/or snapshot + trace buffers.  For trace, the driver will
    allocate 1MB buffer, whereas for snapshot its 2MB. The purpose for this is
    so the enduser doesn't have to manually use an application to setup diag
    buffers for debugging firmware related issues.
    
    Here is some examples
    trace:
    # insmod mpt2sas.ko diag_buffer_enable=1
    
    snapshot:
    # insmod mpt2sas.ko diag_buffer_enable=2
    
    both trace and snapshot:
    # insmod mpt2sas.ko diag_buffer_enable=3
    Signed-off-by: default avatarKashyap Desai <kashyap.desai@lsi.com>
    Signed-off-by: default avatarEric Moore <Eric.moore@lsi.com>
    Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
    32e0eb56
mpt2sas_base.c 106 KB