Date: Wed, 30 May 2018 08:53:58 -0700 From: Kevin Bowling <kevin.bowling@kev009.com> To: Harry Schmalzbauer <freebsd@omnilan.de> Cc: Ryan Stone <rysto32@gmail.com>, Sean Bruno <sbruno@freebsd.org>, freebsd-net <freebsd-net@freebsd.org> Subject: Re: Testing VF/PF code Message-ID: <CAK7dMtATsyiBRhz%2BcnjendaPc2=qfM4Dnbd7VF0t4RkxLkg5dQ@mail.gmail.com> In-Reply-To: <bfbe39a6-436d-d860-9fc7-ba602cfde0d3@omnilan.de> References: <4bc71104-349d-10b6-c7a4-0202e124ff98@freebsd.org> <CAFMmRNxzdJFzG4xSG5RVMt3Bv140hoG%2B6QrLBN6Oe%2BtcZTWNDQ@mail.gmail.com> <bfbe39a6-436d-d860-9fc7-ba602cfde0d3@omnilan.de>
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Harry, I wasn=E2=80=99t aware of anyone desiring vf support for igb but I=E2=80=99= ll take a look at it for you if you can test -current with patches when I=E2=80=99m ready.= My motive is more to validate and refine the iflib functionality and this is a good exercise. On Wed, May 30, 2018 at 8:20 AM Harry Schmalzbauer <freebsd@omnilan.de> wrote: > Am 30.05.2018 um 16:45 schrieb Ryan Stone: > > On Tue, May 29, 2018 at 12:58 PM Sean Bruno <sbruno@freebsd.org> wrote: > >> Does anyone have a process for testing the VF drivers (ixgbe igb, etc) > >> in FreeBSD without actually firing up linux to instantiate a VM or usi= ng > >> EC2? > > We have native support for creating VFs for ixl and ixgbe (and cxgbe). > > For igb you're out of luck (but SR-IOV on igb is kind of a waste of > > time anyway) > > I'd like to note that I'm strongly missing SR-IOV for if_igb(4) and I > don't consider it as a waste of time, speaking of the time needed for > the setup =E2=80=93 not the time to make the code happen; that's nothing = I can > achive (not even estimate) so I won't try to judge about the sense of > that time relation... > > 82576 is a wonderful piece of hardware (mostly true for i350 also) and > I'm missing the ability to use VFs for jails and bhyve(8) likewise with > these NICs. > There are still many appliances that don't need 10GE rates and could > easily cope with FastEthernet rates. For such appliances, > security/design considerations have much more weight than throughput, > which VFs would greatly support implementation simplicity/consistency. > So igbv(4) is on top of my christmas wishlist ;-) > Two or three of the 2-port cards and a LACP switch-stack (GbE) make a > nice platform for a dozend VMs/jails =E2=80=93 affordable by means of fin= ancial > and electrical power budget likewise. > > No tech aspects/justification here, just my experience based opinion. > > Thanks, > > -harry > > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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