Greetings,
Is it possible to issue a low level device reset to a PMC-Sierra PM8388
24x3G SAS expander using either sg3_utils or smp_utils?
I am able to enumerate and read the status of the phys on the PM8388,
read end device information, etc. I tried sg_reset and it does a bus
reset but not an expander reset.
Technical documentation on the PM8388 is not readily available so I do
not know if it has a mode select bit or other special method to get the
expander to reset itself.
I am looking for an inband method to reset the expander to clear a
condition where some phys in a wide connection fail to link. A power
cycle clears the condition and I am looking to mimic a power cycle by
bouncing the expander at the lowest level possible via the SAS host
connection.
Thank you.
--Jeff
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