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From: Jakub Kicinski <kuba@kernel.org>
To: "Arinzon, David" <darinzon@amazon.com>
Cc: David Miller <davem@davemloft.net>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"Machulsky, Zorik" <zorik@amazon.com>,
	"Matushevsky, Alexander" <matua@amazon.com>,
	"Bshara, Saeed" <saeedb@amazon.com>,
	"Bshara, Nafea" <nafea@amazon.com>,
	"Saidi, Ali" <alisaidi@amazon.com>,
	"Kiyanovski, Arthur" <akiyano@amazon.com>,
	"Dagan, Noam" <ndagan@amazon.com>,
	"Agroskin, Shay" <shayagr@amazon.com>,
	"Itzko, Shahar" <itzko@amazon.com>,
	"Abboud, Osama" <osamaabb@amazon.com>,
	"Schmeilin, Evgeny" <evgenys@amazon.com>
Subject: Re: [PATCH V1 net-next 0/5] Add devlink support to ena
Date: Wed, 11 Jan 2023 19:39:48 -0800	[thread overview]
Message-ID: <20230111193948.057d8369@kernel.org> (raw)
In-Reply-To: <2ad9b7b544d745aebd5ddd79bf2efa12@amazon.com>

On Wed, 11 Jan 2023 21:21:16 +0000 Arinzon, David wrote:
> I'll note again that this is not a configurable value, meaning, the only option is
> to have 128B (standard) or 256B (large) LLQ, there's no option to set other values,
> but only choose between the modes, therefore, I don't see how having such an
> option through ethtool, as you suggested (setting the max length) can be
> beneficial in our use-case (might be good overall, as you noted, it's a more
> generic concept). Will put more thought into it.

FWIW you can just return an error via extack if user tries to set an
unsupported value, like:

	NL_SET_ERR_MSG(extack, "only X and Y are supported");

and it will pop up as part of the error in ethtool CLI. Or do some
rounding up - a lot of drivers does that for ring params already.

  reply	other threads:[~2023-01-12  3:39 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-08 10:35 [PATCH V1 net-next 0/5] Add devlink support to ena David Arinzon
2023-01-08 10:35 ` [PATCH V1 net-next 1/5] net: ena: Register ena device to devlink David Arinzon
2023-01-09  5:59   ` Kuniyuki Iwashima
2023-01-10 15:17     ` Arinzon, David
2023-01-08 10:35 ` [PATCH V1 net-next 2/5] net: ena: Add devlink reload functionality David Arinzon
2023-01-08 10:35 ` [PATCH V1 net-next 3/5] net: ena: Configure large LLQ using devlink params David Arinzon
2023-01-08 10:35 ` [PATCH V1 net-next 4/5] net: ena: Several changes to support large LLQ configuration David Arinzon
2023-01-08 10:35 ` [PATCH V1 net-next 5/5] net: ena: Add devlink documentation David Arinzon
2023-01-08 20:15   ` kernel test robot
2023-01-09  6:00   ` Kuniyuki Iwashima
2023-01-10 15:20     ` Arinzon, David
2023-01-10  0:45 ` [PATCH V1 net-next 0/5] Add devlink support to ena Jakub Kicinski
2023-01-10 20:11   ` Arinzon, David
2023-01-10 20:44     ` Jakub Kicinski
2023-01-11  8:58       ` Arinzon, David
2023-01-11 19:00         ` Jakub Kicinski
2023-01-11 19:31           ` Arinzon, David
2023-01-11 20:00             ` Jakub Kicinski
2023-01-11 21:21               ` Arinzon, David
2023-01-12  3:39                 ` Jakub Kicinski [this message]
2023-01-12 10:31               ` Gal Pressman
2023-01-12 13:47                 ` Shay Agroskin
2023-01-12 19:56                   ` Jakub Kicinski
2023-01-15 10:05                     ` Gal Pressman
2023-01-17 17:31                       ` Jakub Kicinski
2023-01-16 14:23                     ` Shay Agroskin
2023-01-17 17:36                       ` Jakub Kicinski

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