Re: [RESEND PATCH 0/3] scsi: target: Set correct residual data

[Anastasia Kovaleva <a.kovaleva@yadro.com>]

Hi,

Could you please tell me if there are any objections to these changes?
These patches are applicable to 5.12/scsi-queue.

Thanks,
Anastasia

On 03.12.2020, 11:21, "Anastasia Kovaleva" <a.kovaleva@yadro.com> wrote:

    Hi Martin,
    Please apply the changes to 5.11/scsi-queue at your earliest
    convenience.

    The series changes the behavior of the target in regard to processing
    commands with overflow/underflow in accordance with the standarts.

    The target driver used to process the DMA_TO_DEVICE commands with
    residuals (in particular, WRITE command) incorrectly. The target
    response contained neither a residual count, nor an OVERFLOW/UNDERFLOW
    bit. Such behavior did not comply with the RFC 7143. Also the
    returned ASC and ASCQ were incorrect according to FCP-4,
    and residuals were not set for the 4Kn devices.

    This patches fix the major inconsistances in processing these kind of
    commands.

    This patch series has been tested with a modified libiscsi testing
    library.
    The link to the pull request:
    https://github.com/sahlberg/libiscsi/pull/345

    Write10Residuals, Write12Residuals, Write16Residuals tests have passed.

    Thanks,
    Anastasia

    Anastasia Kovaleva (2):
      scsi: target: core: Signal WRITE residuals
      scsi: target: core: Change ASCQ for residual write

    Roman Bolshakov (1):
      scsi: target: core: Set residuals for 4Kn devices

     drivers/target/target_core_transport.c | 53 +++++++++++++-------------
     include/target/target_core_base.h      |  1 +
     2 files changed, 28 insertions(+), 26 deletions(-)

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