[Bug 121531] Adaptec 7805H SAS HBA (pm80xx): hangs when writing >80MB at once

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https://bugzilla.kernel.org/show_bug.cgi?id=121531

--- Comment #18 from Chloé Desoutter <chloe@xxxxxxxxxxxxxxxxx> ---
Actually further MicroSemi driver analysis lets me think that the proper,
recommended value is 256.

$ egrep '#define\s+MAX_[IO]B_QUEUE_ELEMENTS' *.h
pm8001_sas.h:#define    MAX_IB_QUEUE_ELEMENTS   256
pm8001_sas.h:#define    MAX_OB_QUEUE_ELEMENTS   256

so I shall test with this value for PM8001_MPI_QUEUE and see if I achieve real
stability with constant workloads.

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