Date: Fri, 19 Jun 2020 09:16:36 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: "Saad, Mark" <Mark.Saad@lucera.com>, "Foster, Greg" <gfoster@panasas.com>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: How to Increase TX Queue Priority for LACP Packets Message-ID: <CAJ-VmokHr%2BC1QQmKHMJUS_vdOT_cffCtZgYV=py378Ddh4XNuQ@mail.gmail.com> In-Reply-To: <20200617001315.GB80914@x270> References: <BYAPR08MB6038FF630C3C8EEC4F11862BB4810@BYAPR08MB6038.namprd08.prod.outlook.com> <20200613025031.GA34653@x270> <BYAPR08MB6038CF94610AFAD28719BDD3B49D0@BYAPR08MB6038.namprd08.prod.outlook.com> <CY4PR12MB1704E7FA436170900F38E23C959D0@CY4PR12MB1704.namprd12.prod.outlook.com> <20200617001315.GB80914@x270>
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On Tue, 16 Jun 2020 at 17:13, Navdeep Parhar <np@freebsd.org> wrote: > We could have a global knob that tells all NIC drivers to use a reserved > queue for non-RSS traffic, but that would be advisory at best because > the tx queue selection takes place inside the driver's (or iflib's) > transmit routine. The meat of the change is going to be in iflib and > all non-iflib drivers' if_transmit. > This isn't a terrible idea - we do the same on wifi for EAPOL / 802.1x frames, and some drivers even do the same thing for DHCP frames. Doing it in iflib would actually be kinda nice. -adrian
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