From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <msowka@gmail.com>
Received: from mail-wr0-f175.google.com (mail-wr0-f175.google.com
 [209.85.128.175]) by dpdk.org (Postfix) with ESMTP id 2F894108D
 for <users@dpdk.org>; Mon, 10 Apr 2017 17:22:27 +0200 (CEST)
Received: by mail-wr0-f175.google.com with SMTP id z109so11340957wrb.1
 for <users@dpdk.org>; Mon, 10 Apr 2017 08:22:27 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=mime-version:from:date:message-id:subject:to;
 bh=GHJRQ37GOUUNQYHqa7lqGQWsoO8Nr7VdlCmwOP++M/c=;
 b=eDcuaLqAVKDg9IWRmA5TRsoBr0S9fHWHTgw8phzvU/0p+y2bwAdWP2Yj+O39bVQNXV
 OgZrdaR+dHCdDDva6hlA6mIqFRzgpq+PMgszAgap1b1rJs7FFmag3PSEuDePcPLBfCKY
 e3+ldAVmDAMT0ra/4MqBk3zBW4jdeRFisFHCuolRS0e/vGdA8VOHhA31lxRdFJXatcks
 L73keQedgNfv2LzWwhilhdn3rU/ggOPssEdvLYHpjOZmjDqXDgFGo8bKVsqwUKEXNZAu
 IB6a8H3KS8QZslbHMD/2GgARTTJ+OBzXpguR7TkHpJ9DrrBgs7GIeCfPV4mdDQ8sF6Ll
 qUPA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
 bh=GHJRQ37GOUUNQYHqa7lqGQWsoO8Nr7VdlCmwOP++M/c=;
 b=SjQm1uNQEr4I8E+Qd4ekJQnq4HOJXcUFAMx9Xmj760UcQyWYWKoqkRbOaovUwYLEsU
 txzG/CTMB5vtEjJG33RXIbkgC7O58rI02KPUg4enhZv32rvasjXmyl2hK+5g9RQZQ8D6
 zoNeX+A9Ab7fF9Wfl+RKLXrZU/c7jNkqNq55+dpIrYGlkBAO11eheiWOOO9Y0H1qA+RA
 7AfFIjSsxKOuv7S9aStW0knZo2ovIuMbP4UYyEzIS966hAZA9xXX9RLkSHa1dW+FtvqZ
 sr0qpL8yQw93DRK5oz3dGpx4gx7Xh3y9HlvAtAYU0HAnDY6VYznDQCWhUOzCPPTmPvep
 zjDA==
X-Gm-Message-State: AN3rC/7KDYETYowyrqMRgqXhQ1r6886MOAVRYgc2ZpZgz1Ykg3epEhBtjz0OBkPjw/oI7GXqkiKD00cTTtfsQg==
X-Received: by 10.223.151.200 with SMTP id t8mr14875022wrb.148.1491837746551; 
 Mon, 10 Apr 2017 08:22:26 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.28.185.12 with HTTP; Mon, 10 Apr 2017 08:22:05 -0700 (PDT)
From: Michael Sowka <msowka@gmail.com>
Date: Mon, 10 Apr 2017 11:22:05 -0400
Message-ID: <CABpefFODFGnRw0SeeSKjXodJrFChTW_EjFs8mSgDeBwYEcoH=g@mail.gmail.com>
To: users@dpdk.org
Content-Type: text/plain; charset=UTF-8
X-Content-Filtered-By: Mailman/MimeDel 2.1.15
Subject: [dpdk-users] TESTPMD: show port <i> rss-hash usage
X-BeenThere: users@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK usage discussions <users.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/users>,
 <mailto:users-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/users/>
List-Post: <mailto:users@dpdk.org>
List-Help: <mailto:users-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/users>,
 <mailto:users-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Mon, 10 Apr 2017 15:22:27 -0000

Hello folks, I'm a little thrown off by testpmd 'show port rss-hash'
command, specifically why does it accept the first argument (the rss_type).
Following the code down to rte_ethdev.c, and subsequently into the ixgbe
driver (i'm using an X520 card), it seems it reports back the same set of
rss hash function pulled from the cards registers (and rsk for that
matter), no matter what arguments to the show port command are provided...

Are these show port rss-hash arguments there to support some more advanced
NICs in some more elaborate form of rss, ? Could it be some inconsistency /
legacy code in testpmd, or is it really my lack of knowledge on rss
functionality, ?

Appreciate your insight, Mike