linux-kernel - Re: [PATCH v2 09/15] NTB: ntb_test: Update ntb

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Date:   Tue, 5 Dec 2017 13:26:29 -0500
From:   Jon Mason <jdmason@...zu.us>
To:     Serge Semin <fancer.lancer@...il.com>
Cc:     Dave Jiang <dave.jiang@...el.com>,
        "Hubbe, Allen" <Allen.Hubbe@....com>,
        "S-k, Shyam-sundar" <Shyam-sundar.S-k@....com>,
        "Yu, Xiangliang" <Xiangliang.Yu@....com>,
        Gary R Hook <gary.hook@....com>, Sergey.Semin@...latforms.ru,
        linux-ntb <linux-ntb@...glegroups.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 09/15] NTB: ntb_test: Update ntb_tool link tests

On Sun, Dec 3, 2017 at 2:17 PM, Serge Semin <fancer.lancer@...il.com> wrote:
> Link Up and Down methods are used to change NTB link settings on
> local side only for multi-port devices. Link is considered up
> only if both sides local and peer set it up. Intel/AMD hardware
> acts a bit different by assigning the Primary and Secondary roles,
> so Primary device only is able to change the link state. Such behaviour
> should be reflected in the test code.
>
> Signed-off-by: Serge Semin <fancer.lancer@...il.com>
> ---
>  tools/testing/selftests/ntb/ntb_test.sh | 26 +++++++++++++++-----------
>  1 file changed, 15 insertions(+), 11 deletions(-)
>
> diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
> index 541ba70ad640..247458c6d8dc 100755
> --- a/tools/testing/selftests/ntb/ntb_test.sh
> +++ b/tools/testing/selftests/ntb/ntb_test.sh
> @@ -138,6 +138,11 @@ function check_file()
>         fi
>  }
>
> +function subdirname()
> +{
> +       echo $(basename $(dirname $1)) 2> /dev/nulle

shouldn't this be /dev/null?

> +}
> +
>  function find_pidx()
>  {
>         PORT=$1
> @@ -183,9 +188,9 @@ function link_test()
>         REM=$2
>         EXP=0
>
> -       echo "Running link tests on: $(basename $LOC) / $(basename $REM)"
> +       echo "Running link tests on: $(subdirname $LOC) / $(subdirname $REM)"
>
> -       if ! write_file "N" "$LOC/link" 2> /dev/null; then
> +       if ! write_file "N" "$LOC/../link" 2> /dev/null; then
>                 echo "  Unsupported"
>                 return
>         fi
> @@ -193,12 +198,11 @@ function link_test()
>         write_file "N" "$LOC/link_event"
>
>         if [[ $(read_file "$REM/link") != "N" ]]; then
> -               echo "Expected remote link to be down in $REM/link" >&2
> +               echo "Expected link to be down in $REM/link" >&2
>                 exit -1
>         fi
>
> -       write_file "Y" "$LOC/link"
> -       write_file "Y" "$LOC/link_event"
> +       write_file "Y" "$LOC/../link"
>
>         echo "  Passed"
>  }
> @@ -379,15 +383,15 @@ function ntb_tool_tests()
>
>         port_test "$LOCAL_TOOL" "$REMOTE_TOOL"
>
> -       write_file "Y" "$LOCAL_TOOL/link_event"
> -       write_file "Y" "$REMOTE_TOOL/link_event"
> +       LOCAL_PEER_TOOL="$LOCAL_TOOL/peer$LOCAL_PIDX"
> +       REMOTE_PEER_TOOL="$REMOTE_TOOL/peer$REMOTE_PIDX"
>
> -       link_test "$LOCAL_TOOL" "$REMOTE_TOOL"
> -       link_test "$REMOTE_TOOL" "$LOCAL_TOOL"
> +       link_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
> +       link_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
>
>         #Ensure the link is up on both sides before continuing
> -       write_file "Y" "$LOCAL_TOOL/link_event"
> -       write_file "Y" "$REMOTE_TOOL/link_event"
> +       write_file "Y" "$LOCAL_PEER_TOOL/link_event"
> +       write_file "Y" "$REMOTE_PEER_TOOL/link_event"
>
>         for PEER_TRANS in $(ls "$LOCAL_TOOL"/peer_trans*); do
>                 PT=$(basename $PEER_TRANS)
> --
> 2.12.0
>