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From: Jakub Kicinski <kuba@kernel.org>
To: "Westergreen, Dalon" <dalon.westergreen@intel.com>
Cc: "mkubecek@suse.cz" <mkubecek@suse.cz>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"Tan, Ley Foon" <ley.foon.tan@intel.com>,
	"See, Chin Liang" <chin.liang.see@intel.com>,
	"Nguyen, Dinh" <dinh.nguyen@intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"Ooi, Joyce" <joyce.ooi@intel.com>,
	"thor.thayer@linux.intel.com" <thor.thayer@linux.intel.com>
Subject: Re: [PATCH v4 09/10] net: eth: altera: add msgdma prefetcher
Date: Tue, 14 Jul 2020 12:13:17 -0700	[thread overview]
Message-ID: <20200714121317.732331aa@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <9a8ba2616f72fb44cdc3b45fabfb4d7bdf961fd0.camel@intel.com>

On Tue, 14 Jul 2020 18:51:15 +0000 Westergreen, Dalon wrote:
> > I've seen vendors abuse fields of ethtool --coalesce to configure
> > similar settings. tx-usecs-irq and rx-usecs-irq, I think. Since this
> > part of ethtool API has been ported to netlink, could we perhaps add 
> > a new field to ethtool --coalesce?  
> 
> I don't think this is necessary, i think just having a module parameter
> meets our needs.  I don't see a need for the value to change on a per
> interface basis.  This was primarily used during testing / bringup.

It's hard to tell which knobs users will find worth turning therefore
the testing / bringup justification unfortunately has little bearing on
our upstream interface choices.

We try hard to avoid module parameters in networking drivers, so if you
want this tunable upstream a proper user interface will be required.

  reply	other threads:[~2020-07-14 19:13 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08  7:23 [PATCH v4 00/10] net: eth: altera: tse: Add PTP and mSGDMA prefetcher Ooi, Joyce
2020-07-08  7:23 ` [PATCH v4 01/10] net: eth: altera: tse_start_xmit ignores tx_buffer call response Ooi, Joyce
2020-07-23 16:32   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 02/10] net: eth: altera: set rx and tx ring size before init_dma call Ooi, Joyce
2020-07-23 16:33   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 03/10] net: eth: altera: fix altera_dmaops declaration Ooi, Joyce
2020-07-23 16:33   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 04/10] net: eth: altera: add optional function to start tx dma Ooi, Joyce
2020-07-23 16:35   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 05/10] net: eth: altera: Move common functions to altera_utils Ooi, Joyce
2020-07-23 16:39   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 06/10] net: eth: altera: Add missing identifier names to function declarations Ooi, Joyce
2020-07-23 16:40   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 07/10] net: eth: altera: change tx functions to type netdev_tx_t Ooi, Joyce
2020-07-23 16:41   ` Thor Thayer
2020-07-08  7:23 ` [PATCH v4 08/10] net: eth: altera: add support for ptp and timestamping Ooi, Joyce
2020-07-09 11:31   ` Richard Cochran
2020-07-15  3:48     ` Ooi, Joyce
2020-07-23 17:05   ` Thor Thayer
2020-07-08  7:24 ` [PATCH v4 09/10] net: eth: altera: add msgdma prefetcher Ooi, Joyce
2020-07-08 17:33   ` David Miller
2020-07-14 14:36     ` Ooi, Joyce
2020-07-08 21:49   ` Jakub Kicinski
2020-07-14 14:35     ` Ooi, Joyce
2020-07-14 15:55       ` Jakub Kicinski
2020-07-14 15:58         ` Westergreen, Dalon
2020-07-14 16:29           ` Jakub Kicinski
2020-07-14 18:51             ` Westergreen, Dalon
2020-07-14 19:13               ` Jakub Kicinski [this message]
2020-07-14 20:23               ` David Miller
2020-07-14 23:25                 ` Westergreen, Dalon
2020-07-08  7:24 ` [PATCH v4 10/10] net: eth: altera: update devicetree bindings documentation Ooi, Joyce

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