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From: Jakub Kicinski <kuba@kernel.org>
To: Jacob Keller <jacob.e.keller@intel.com>
Cc: Gal Pressman <gal@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Simon Horman <horms@verge.net.au>,
	Andy Gospodarek <andy@greyhouse.net>
Subject: Re: [PATCH net-next 0/2] ice: support FEC automatic disable
Date: Tue, 30 Aug 2022 14:44:51 -0700	[thread overview]
Message-ID: <20220830144451.64fb8ea8@kernel.org> (raw)
In-Reply-To: <26384052-86fa-dc29-51d8-f154a0a71561@intel.com>

On Tue, 30 Aug 2022 13:09:20 -0700 Jacob Keller wrote:
> I'm trying to figure out what my next steps are here.
> 
> Jakub, from earlier discussion it sounded like you are ok with accepting
> patch to include "No FEC" into our auto override behavior, with no uAPI
> changes. Is that still ok given the recent dicussion regarding going
> beyond the spec?

Yes, I reserve the right to change my mind :) but AFAIU it doesn't make
things worse, so fine by me.

> I'm also happy to rename the flag in ice so that its not misnamed and
> clearly indicates its behavior.

Which flag? A new ethtool priv flag?

> Gal seems against extending uAPI to indicate or support "ignore spec".
> To be properly correct that would mean changing ice to stop setting the
> AUTO_FEC flag. As explained above, I believe this will lead to breakage
> in situations where we used to link and function properly.

Stop setting the AUTO_FEC flag or start using a new standard compliant
AUTO flag?

Gal, within the spec do you iterate over modes or pick one mode somehow
(the spec gives a set, AFAICT)?

> I have no way to verify whether other vendors actually follow this or
> not, as it essentially requires checking with modules that wouldn't link
> otherwise and likely requires a lot of trial and error.

Getting some input from Broadcom or Netronome would be useful, yes :(

  reply	other threads:[~2022-08-30 21:45 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-23 15:04 [PATCH net-next 0/2] ice: support FEC automatic disable Jacob Keller
2022-08-23 15:04 ` [PATCH net-next 1/2] ethtool: pass netlink extended ACK to .set_fecparam Jacob Keller
2022-08-23 15:06   ` Simon Horman
2022-08-23 22:13   ` Jakub Kicinski
2022-08-24 17:27     ` Keller, Jacob E
2022-08-23 15:04 ` [PATCH net-next 2/2] ice: add support for Auto FEC with FEC disabled via ETHTOOL_SFECPARAM Jacob Keller
2022-08-23 22:17   ` Jakub Kicinski
2022-08-24 17:29     ` Keller, Jacob E
2022-08-24 21:29     ` Keller, Jacob E
2022-08-24 22:47       ` Jakub Kicinski
2022-08-24 22:53         ` Keller, Jacob E
2022-08-24 23:02           ` Jakub Kicinski
2022-08-24 23:13             ` Keller, Jacob E
2022-08-24 23:32               ` Jakub Kicinski
2022-08-24 13:35 ` [PATCH net-next 0/2] ice: support FEC automatic disable Gal Pressman
2022-08-24 16:25   ` Jakub Kicinski
2022-08-25  7:08     ` Gal Pressman
2022-08-24 17:40   ` Keller, Jacob E
2022-08-25  7:08     ` Gal Pressman
2022-08-25 16:29       ` Jakub Kicinski
2022-08-25 16:57         ` Keller, Jacob E
2022-08-25 17:30           ` Jakub Kicinski
2022-08-25 17:51             ` Keller, Jacob E
2022-08-25 20:34               ` Jakub Kicinski
2022-08-25 21:04                 ` Keller, Jacob E
2022-08-26  0:38                 ` Jacob Keller
2022-08-26  1:01                   ` Jakub Kicinski
2022-08-26 17:51                     ` Jacob Keller
2022-08-26 23:57                       ` Jakub Kicinski
2022-08-28 10:42                         ` Gal Pressman
2022-08-29  7:11                           ` Keller, Jacob E
2022-08-29 11:21                             ` Gal Pressman
2022-08-29 18:10                               ` Jacob Keller
2022-08-30 20:09                                 ` Jacob Keller
2022-08-30 21:44                                   ` Jakub Kicinski [this message]
2022-08-30 23:09                                     ` Keller, Jacob E
2022-08-31 11:01                                     ` Gal Pressman
2022-08-31 17:36                                       ` Jakub Kicinski
2022-09-01 11:52                                         ` Gal Pressman
2022-09-05 11:25                                         ` Gal Pressman
2022-08-31 20:15                                       ` Jacob Keller
2022-09-01 11:51                                         ` Gal Pressman
2022-09-01 17:59                                           ` Keller, Jacob E
2022-09-07  3:44                                     ` Michael Chan

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