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Date:      Sat, 03 Dec 2022 15:38:49 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 267539] Bhyve virtio-scsi warnings about illegal SCSI tag reuse
Message-ID:  <bug-267539-27103-cPB37j7O3w@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-267539-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-267539-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267539

--- Comment #2 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=3D0acc026dda9e7405f7a88993d1b51e5fc=
846cbc5

commit 0acc026dda9e7405f7a88993d1b51e5fc846cbc5
Author:     Alexander Motin <mav@FreeBSD.org>
AuthorDate: 2022-12-03 15:23:29 +0000
Commit:     Alexander Motin <mav@FreeBSD.org>
CommitDate: 2022-12-03 15:23:29 +0000

    CTL: Increase maximum SCSI tag size from 32 to 64 bits.

    SAM-5 specification states maximum size of command identifier (tag),
    defined by specific transports, should not be larger than 64 bits.
    While most of supported transports use 32 bits or less, it was
    reported that virtio-scsi uses 64 bits.  Truncation to 32 bits in
    bhyve code caused false tag conflict errors reported and possibly
    other issues.

    This changes CTL ABI and HA protocol, so CTL_HA_VERSION is bumped.

    While we make HA protocol incompatible, increase default maximum
    number of ports in CTL from 256 to 1024, matching number of LUNs.
    There are many reports from people who need many iSCSI targets with
    only one LUN each.  Increased memory consumption should be less of
    a problem these days.

    PR:     267539

 share/man/man4/ctl.4             |  2 +-
 sys/cam/ctl/ctl.c                | 13 +++++++------
 sys/cam/ctl/ctl_frontend_ioctl.c |  4 ++--
 sys/cam/ctl/ctl_io.h             | 11 +++++------
 sys/cam/ctl/ctl_ioctl.h          |  3 ++-
 sys/cam/ctl/ctl_tpc_local.c      |  2 +-
 sys/cam/ctl/ctl_util.c           |  6 +++---
 sys/cam/ctl/scsi_ctl.c           |  2 +-
 usr.sbin/bhyve/pci_virtio_scsi.c |  4 ++--
 9 files changed, 24 insertions(+), 23 deletions(-)

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