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  1. TrueNAS
  2. NAS-104477

Make pass(4) handle misaligned buffers of MAXPHYS size

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Details

    • Improvement
    • Status: Done (View Workflow)
    • Medium
    • Resolution: Complete
    • 11.2-U7
    • 11.3-RC2
    • OS
    • None

    Description

      Old synchronous API of pass(4) does not allow to pass data blocks of MAXPHYS size if they are not page-aligned.  It is not a big deal for disks, but is a significant pain for tape access applications using SCSI command pass-through, since even 128KB of present MAXPHYS is too small, not mentioning halving it to 64KB to workaround the alignment requirement.

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                mav Alexander Motin
                mav Alexander Motin
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                  Created:
                  Updated:
                  Resolved: