linux-kernel - Re: [PATCH v3 net-next 2/2] octeontx2-af: Knobs for NPC default rule counters

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Message-ID: <20241024095022.GB954957@hyd1403.caveonetworks.com>
Date: Thu, 24 Oct 2024 15:20:22 +0530
From: Linu Cherian <lcherian@...vell.com>
To: Simon Horman <horms@...nel.org>
CC: <davem@...emloft.net>, <sgoutham@...vell.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <gakula@...vell.com>,
        <hkelam@...vell.com>, <sbhatta@...vell.com>, <jerinj@...vell.com>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH v3 net-next 2/2] octeontx2-af: Knobs for NPC default rule
 counters

Hi Simon,

On 2024-10-18 at 17:31:59, Simon Horman (horms@...nel.org) wrote:
> + Jiri
> 
> On Thu, Oct 17, 2024 at 02:12:44PM +0530, Linu Cherian wrote:
> > Add devlink knobs to enable/disable counters on NPC
> > default rule entries.
> > 
> > Sample command to enable default rule counters:
> > devlink dev param set <dev> name npc_def_rule_cntr value true cmode runtime
> > 
> > Sample command to read the counter:
> > cat /sys/kernel/debug/cn10k/npc/mcam_rules
> > 
> > Signed-off-by: Linu Cherian <lcherian@...vell.com>
> > ---
> > Changelog from v2:
> > Moved out the refactoring into separate patch. 
> > 
> >  .../net/ethernet/marvell/octeontx2/af/rvu.h   |  2 +
> >  .../marvell/octeontx2/af/rvu_devlink.c        | 32 +++++++++++++
> >  .../ethernet/marvell/octeontx2/af/rvu_npc.c   | 45 +++++++++++++++++++
> >  3 files changed, 79 insertions(+)
> 
> Hi Linu,
> 
> This looks like a good approach to me.
> However I think you also also need to add documentation for npc_def_rule_cntr
> to Documentation/networking/devlink/octeontx2.rst
> 
> Likewise, octeontx2.rst seems to be missing documentation for the existing
> AF parameters npc_mcam_high_zone_percent and nix_maxlf. I did not see
> if there are any more undocumented parameters for octeontx2 but I'd
> appreciate if you could do so.

Sure. Will add the documentation.

Thanks.