James,

>> However, it doesn't look like we have much to work with since there
>> is no ATA Information VPD page exposed.
>
> it's the fat firmware problem again.  However, the driver does know, so
> could we persuade a modification of
> mpt3sas_scsih.c:_scsih_display_sata_capabilities() to populate a VPD
> page?

This is gen 1 MPT. I'm a bit irked about disabling WRITE SAME for
attached SAS devices. Given how old this controller is, however, it
hardly seems worth the hassle to fix this properly.

-- 
Martin K. Petersen      Oracle Linux Engineering

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