Date: Wed, 4 Jan 2017 09:19:07 +0800 From: Sepherosa Ziehau <sepherosa@gmail.com> To: David Belle-Isle <dbelleisle@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Adrian Chadd <adrian@freebsd.org> Subject: Re: Changing NIC ring weight in indirection table Message-ID: <CAMOc5cx_hWLkCPZfUSBdwiMh2CFVgAgT2LKu%2Bku%2B5Cu=HUq9Yw@mail.gmail.com> In-Reply-To: <CAN56noy0ORvNDt5RcUfufH75=yqfCaD=V-qMK8CKhkauyo0qMQ@mail.gmail.com>
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On Fri, Dec 30, 2016 at 11:34 PM, David Belle-Isle <dbelleisle@gmail.com> wrote: > Hi, > > Can anyone tell me how to set the weight of a ring from the indirection > table on FreeBSD? My plan is to yank out a TX ring and to use it solely > with netmap to receive packets but want to make sure the kernel won't be > receiving any packets on this ring. TX side is not related to the RSS's indirect table at all. I believe you need to modify the drivers you are using. > > Based on a quick search this is something that ethtool would be able to do > on Linux but I doubt this can be done on FreeBSD using the same tool? adrian@ has proposed something in this area, RSS key and RSS indirect table, though not much happens yet. I have implemented the indirect table changes through a driver specific sysctl for hn(4), you probably could do the same for the drivers that you are using. But again, you will have to change the code. Thanks, sephehome | help
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