[Bug 261375] mrsas: Additional MPT command allocation for R1 FP IOs

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 21 Jan 2022 12:51:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261375

            Bug ID: 261375
           Summary: mrsas: Additional MPT command allocation for R1 FP IOs
           Product: Base System
           Version: 13.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: chandrakanth.patil@broadcom.com

Created attachment 231209
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=231209&action=edit
remove additional MPT command allocation for R1 FP

There is an additional command allocation for R1 FP IOs which will eventually
cause MPT command scarcity in case of rigorous R1 FP IOs. and this issue will
surface only in the case of R1 VD.
Hence this BZ is created to address that.

This issue is applicable to FreeBSD13, upcoming FreeBSD13.1FreeBSD12.2,
FreeBSD12.3.

I have attached the patch with the fix (this patch will remove the additional
MPT command allocation for R1 FP)

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