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From: "Juraj Linkeš" <juraj.linkes@pantheon.tech>
To: Jeremy Spewock <jspewock@iol.unh.edu>
Cc: Luca Vizzarro <Luca.Vizzarro@arm.com>,
	dev@dpdk.org,  Jack Bond-Preston <jack.bond-preston@arm.com>,
	 Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Subject: Re: [PATCH 4/6] dts: use testpmd params for scatter test suite
Date: Mon, 29 Apr 2024 09:45:55 +0200	[thread overview]
Message-ID: <CAOb5WZbwWgj0Xdh8BCYz+M1kSb5CVGwOfQty4Pcqyi6q1asB2g@mail.gmail.com> (raw)
In-Reply-To: <CAAA20UT8gs5DG3yxTw76HiWNWp0btnu2uGZfVtLaPB1YrrWwpw@mail.gmail.com>

On Fri, Apr 26, 2024 at 8:06 PM Jeremy Spewock <jspewock@iol.unh.edu> wrote:
>
> On Wed, Apr 10, 2024 at 9:19 AM Juraj Linkeš <juraj.linkes@pantheon.tech> wrote:
> >
> > On Wed, Apr 10, 2024 at 12:53 PM Luca Vizzarro <Luca.Vizzarro@arm.com> wrote:
> > >
> > > On 09/04/2024 20:12, Juraj Linkeš wrote:
> > > >> @@ -104,16 +108,15 @@ def pmd_scatter(self, mbsize: int) -> None:
> > > >>           """
> > > >>           testpmd = self.sut_node.create_interactive_shell(
> > > >>               TestPmdShell,
> > > >> -            app_parameters=StrParams(
> > > >> -                "--mbcache=200 "
> > > >> -                f"--mbuf-size={mbsize} "
> > > >> -                "--max-pkt-len=9000 "
> > > >> -                "--port-topology=paired "
> > > >> -                "--tx-offloads=0x00008000"
> > > >> +            app_parameters=TestPmdParameters(
> > > >> +                forward_mode=TestPmdForwardingModes.mac,
> > > >> +                mbcache=200,
> > > >> +                mbuf_size=[mbsize],
> > > >> +                max_pkt_len=9000,
> > > >> +                tx_offloads=0x00008000,
> > > >>               ),
> > > >>               privileged=True,
> > > >>           )
> > > >> -        testpmd.set_forward_mode(TestPmdForwardingModes.mac)
> > > >
> > > > Jeremy, does this change the test? Instead of configuring the fw mode
> > > > after starting testpmd, we're starting testpmd with fw mode
> > > > configured.
>
> To my knowledge, as Luca mentions below, this does not functionally
> change anything about the test, scatter should just need the MAC
> forwarding mode to be set at some point before forwarding starts, it
> doesn't technically matter when. One thing to note that this does
> change, however, is that we lose the verification step that the method
> within testpmd provides. I'm not sure off the top of my head if
> testpmd just completely fails to start if the forwarding mode flag is
> set and it fails to change modes or if it still starts and then just
> goes back to default (io) which would make the test operate in an
> invalid state without anyway of knowing.
>
> As another note however, I've never seen a mode change fail and I
> don't know what could even make it fail, so this would be a rare thing
> anyway, but still just something to consider.
>

Ok, thanks. This is fine then. If we see a problem with this when
testpmd starts we can just raise a bug against testpmd (as it should
either start with mac forwarding or error).

>
> > >
> > > I am not Jeremy (please Jeremy still reply), but we discussed this on
> > > Slack. Reading through the testpmd source code, setting arguments like
> > > forward-mode in the command line, is the exact equivalent of calling
> > > `set forward mode` right after start-up. So it is equivalent in theory.
> > >
> > > > If not, we should remove the testpmd.set_forward_mode method, as it's
> > > > not used anymore.
> > >
> > > Could there be test cases that change the forward mode multiple times in
> > > the same shell, though? As this could still be needed to cover this.
> >
> > Yes, but we don't have such a test now. It's good practice to remove
> > unused code. We can still bring it back anytime, it'll be in git
> > history.

  reply	other threads:[~2024-04-29  7:46 UTC|newest]

Thread overview: 159+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-26 19:04 [PATCH 0/6] dts: add testpmd params and statefulness Luca Vizzarro
2024-03-26 19:04 ` [PATCH 1/6] dts: add parameters data structure Luca Vizzarro
2024-03-28 16:48   ` Jeremy Spewock
2024-04-09 15:52     ` Luca Vizzarro
2024-04-09 12:10   ` Juraj Linkeš
2024-04-09 16:28     ` Luca Vizzarro
2024-04-10  9:15       ` Juraj Linkeš
2024-04-10  9:51         ` Luca Vizzarro
2024-04-10 10:04           ` Juraj Linkeš
2024-03-26 19:04 ` [PATCH 2/6] dts: use Params for interactive shells Luca Vizzarro
2024-03-28 16:48   ` Jeremy Spewock
2024-04-09 14:56     ` Juraj Linkeš
2024-04-10  9:34       ` Luca Vizzarro
2024-04-10  9:58         ` Juraj Linkeš
2024-05-28 15:43   ` Nicholas Pratte
2024-03-26 19:04 ` [PATCH 3/6] dts: add testpmd shell params Luca Vizzarro
2024-03-28 16:48   ` Jeremy Spewock
2024-04-09 16:37   ` Juraj Linkeš
2024-04-10 10:49     ` Luca Vizzarro
2024-04-10 13:17       ` Juraj Linkeš
2024-03-26 19:04 ` [PATCH 4/6] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-04-09 19:12   ` Juraj Linkeš
2024-04-10 10:53     ` Luca Vizzarro
2024-04-10 13:18       ` Juraj Linkeš
2024-04-26 18:06         ` Jeremy Spewock
2024-04-29  7:45           ` Juraj Linkeš [this message]
2024-03-26 19:04 ` [PATCH 5/6] dts: add statefulness to InteractiveShell Luca Vizzarro
2024-03-28 16:48   ` Jeremy Spewock
2024-04-10  6:53     ` Juraj Linkeš
2024-04-10 11:27       ` Luca Vizzarro
2024-04-10 13:35         ` Juraj Linkeš
2024-04-10 14:07           ` Luca Vizzarro
2024-04-12 12:33             ` Juraj Linkeš
2024-04-29 14:48           ` Jeremy Spewock
2024-03-26 19:04 ` [PATCH 6/6] dts: add statefulness to TestPmdShell Luca Vizzarro
2024-03-28 16:48   ` Jeremy Spewock
2024-04-10  7:41     ` Juraj Linkeš
2024-04-10 11:35       ` Luca Vizzarro
2024-04-11 10:30         ` Juraj Linkeš
2024-04-11 11:47           ` Luca Vizzarro
2024-04-11 12:13             ` Juraj Linkeš
2024-04-11 13:59               ` Luca Vizzarro
2024-04-26 18:06               ` Jeremy Spewock
2024-04-29 12:06                 ` Juraj Linkeš
2024-04-10  7:50   ` Juraj Linkeš
2024-04-10 11:37     ` Luca Vizzarro
2024-05-09 11:20 ` [PATCH v2 0/8] dts: add testpmd params Luca Vizzarro
2024-05-09 11:20   ` [PATCH v2 1/8] dts: add params manipulation module Luca Vizzarro
2024-05-28 15:40     ` Nicholas Pratte
2024-05-28 21:08     ` Jeremy Spewock
2024-06-06  9:19     ` Juraj Linkeš
2024-06-17 11:44       ` Luca Vizzarro
2024-06-18  8:55         ` Juraj Linkeš
2024-05-09 11:20   ` [PATCH v2 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-05-28 17:43     ` Nicholas Pratte
2024-05-28 21:04     ` Jeremy Spewock
2024-06-06 13:14     ` Juraj Linkeš
2024-05-09 11:20   ` [PATCH v2 3/8] dts: refactor EalParams Luca Vizzarro
2024-05-28 15:44     ` Nicholas Pratte
2024-05-28 21:05     ` Jeremy Spewock
2024-06-06 13:17     ` Juraj Linkeš
2024-05-09 11:20   ` [PATCH v2 4/8] dts: remove module-wide imports Luca Vizzarro
2024-05-28 15:45     ` Nicholas Pratte
2024-05-28 21:08     ` Jeremy Spewock
2024-06-06 13:21     ` Juraj Linkeš
2024-05-09 11:20   ` [PATCH v2 5/8] dts: add testpmd shell params Luca Vizzarro
2024-05-28 15:53     ` Nicholas Pratte
2024-05-28 21:05     ` Jeremy Spewock
2024-05-29 15:59       ` Luca Vizzarro
2024-05-29 17:11         ` Jeremy Spewock
2024-05-09 11:20   ` [PATCH v2 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-05-28 15:49     ` Nicholas Pratte
2024-05-28 21:06       ` Jeremy Spewock
2024-05-09 11:20   ` [PATCH v2 7/8] dts: rework interactive shells Luca Vizzarro
2024-05-28 15:50     ` Nicholas Pratte
2024-05-28 21:07     ` Jeremy Spewock
2024-05-29 15:57       ` Luca Vizzarro
2024-05-09 11:20   ` [PATCH v2 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-05-28 15:50     ` Nicholas Pratte
2024-05-28 21:08     ` Jeremy Spewock
2024-05-22 15:59   ` [PATCH v2 0/8] dts: add testpmd params Nicholas Pratte
2024-05-30 15:24 ` [PATCH v3 " Luca Vizzarro
2024-05-30 15:24   ` [PATCH v3 1/8] dts: add params manipulation module Luca Vizzarro
2024-05-30 20:12     ` Jeremy Spewock
2024-05-31 15:19     ` Nicholas Pratte
2024-05-30 15:24   ` [PATCH v3 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-05-30 20:12     ` Jeremy Spewock
2024-05-31 15:20     ` Nicholas Pratte
2024-05-30 15:25   ` [PATCH v3 3/8] dts: refactor EalParams Luca Vizzarro
2024-05-30 20:12     ` Jeremy Spewock
2024-05-31 15:21     ` Nicholas Pratte
2024-05-30 15:25   ` [PATCH v3 4/8] dts: remove module-wide imports Luca Vizzarro
2024-05-30 20:12     ` Jeremy Spewock
2024-05-31 15:21     ` Nicholas Pratte
2024-05-30 15:25   ` [PATCH v3 5/8] dts: add testpmd shell params Luca Vizzarro
2024-05-30 20:12     ` Jeremy Spewock
2024-05-31 15:20     ` Nicholas Pratte
2024-06-06 14:37     ` Juraj Linkeš
2024-05-30 15:25   ` [PATCH v3 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-05-30 20:13     ` Jeremy Spewock
2024-05-31 15:22     ` Nicholas Pratte
2024-06-06 14:38     ` Juraj Linkeš
2024-05-30 15:25   ` [PATCH v3 7/8] dts: rework interactive shells Luca Vizzarro
2024-05-30 20:13     ` Jeremy Spewock
2024-05-31 15:22     ` Nicholas Pratte
2024-06-06 18:03     ` Juraj Linkeš
2024-06-17 12:13       ` Luca Vizzarro
2024-06-18  9:18         ` Juraj Linkeš
2024-05-30 15:25   ` [PATCH v3 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-05-30 20:13     ` Jeremy Spewock
2024-05-31 15:21     ` Nicholas Pratte
2024-06-06 18:05     ` Juraj Linkeš
2024-06-17 14:42 ` [PATCH v4 0/8] dts: add testpmd params and statefulness Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 1/8] dts: add params manipulation module Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 3/8] dts: refactor EalParams Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 4/8] dts: remove module-wide imports Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 5/8] dts: add testpmd shell params Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 7/8] dts: rework interactive shells Luca Vizzarro
2024-06-17 14:42   ` [PATCH v4 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-06-17 14:54 ` [PATCH v5 0/8] dts: add testpmd params Luca Vizzarro
2024-06-17 14:54   ` [PATCH v5 1/8] dts: add params manipulation module Luca Vizzarro
2024-06-17 15:22     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-06-17 15:23     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 3/8] dts: refactor EalParams Luca Vizzarro
2024-06-17 15:23     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 4/8] dts: remove module-wide imports Luca Vizzarro
2024-06-17 15:23     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 5/8] dts: add testpmd shell params Luca Vizzarro
2024-06-17 15:24     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-06-17 15:24     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 7/8] dts: rework interactive shells Luca Vizzarro
2024-06-17 15:25     ` Nicholas Pratte
2024-06-17 14:54   ` [PATCH v5 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-06-17 15:25     ` Nicholas Pratte
2024-06-19 10:23 ` [PATCH v6 0/8] dts: add testpmd params Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 1/8] dts: add params manipulation module Luca Vizzarro
2024-06-19 12:45     ` Juraj Linkeš
2024-06-19 10:23   ` [PATCH v6 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 3/8] dts: refactor EalParams Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 4/8] dts: remove module-wide imports Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 5/8] dts: add testpmd shell params Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-06-19 10:23   ` [PATCH v6 7/8] dts: rework interactive shells Luca Vizzarro
2024-06-19 12:49     ` Juraj Linkeš
2024-06-19 10:23   ` [PATCH v6 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-06-19 14:02 ` [PATCH v7 0/8] dts: add testpmd params Luca Vizzarro
2024-06-19 14:02   ` [PATCH v7 1/8] dts: add params manipulation module Luca Vizzarro
2024-06-19 14:02   ` [PATCH v7 2/8] dts: use Params for interactive shells Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 3/8] dts: refactor EalParams Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 4/8] dts: remove module-wide imports Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 5/8] dts: add testpmd shell params Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 6/8] dts: use testpmd params for scatter test suite Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 7/8] dts: rework interactive shells Luca Vizzarro
2024-06-19 14:03   ` [PATCH v7 8/8] dts: use Unpack for type checking and hinting Luca Vizzarro
2024-06-20  3:36   ` [PATCH v7 0/8] dts: add testpmd params Thomas Monjalon

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