Date: Tue, 17 Aug 2010 19:18:17 +0400 From: pluknet <pluknet@gmail.com> To: Jack Vogel <jfvogel@gmail.com> Cc: Jack F Vogel <jfv@freebsd.org>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: svn commit: r209611 - head/sys/dev/e1000 Message-ID: <AANLkTinKO1pZKRCaofeUqBdaYoMhp1OUH3Aob2qTQCvV@mail.gmail.com> In-Reply-To: <AANLkTik6fyB9lDn9Qd752onGvq14l9xlUfjUuvAIpTOz@mail.gmail.com> References: <201006301726.o5UHQl7n011935@svn.freebsd.org> <4C2BBC1F.6020405@elischer.org> <AANLkTik6fyB9lDn9Qd752onGvq14l9xlUfjUuvAIpTOz@mail.gmail.com>
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On 1 July 2010 02:13, Jack Vogel <jfvogel@gmail.com> wrote: > On Wed, Jun 30, 2010 at 2:50 PM, Julian Elischer <julian@elischer.org>wrote: > >> On 6/30/10 10:26 AM, Jack F Vogel wrote: >> >>> Author: jfv >>> Date: Wed Jun 30 17:26:47 2010 >>> New Revision: 209611 >>> URL: http://svn.freebsd.org/changeset/base/209611 >>> >>> Log: >>> SR-IOV support added to igb >>> >>> What this provides is support for the 'virtual function' >>> interface that a FreeBSD VM may be assigned from a host >>> like KVM on Linux, or newer versions of Xen with such >>> support. >>> >>> When the guest is set up with the capability, a special >>> limited function 82576 PCI device is present in its virtual >>> PCI space, so with this driver installed in the guest that >>> device will be detected and function nearly like the bare >>> metal, as it were. >>> >>> The interface is only allowed a single queue in this configuration >>> however initial performance tests have looked very good. >>> >>> Enjoy!! >>> >>> >> do these extra devices turn up in a standard ifconfig output? >> in other words, can we assign them to jails using vimage? >> >> > They only show up if configured in the PF host, for instance if using Linux > and KVM (I did develop and test > with Fedora 13) you must load the igb driver there specifying that you want > vf's created and how many. > Next in the management of the guest you need to assign one of these vf > devices to the guest. After you > do all that and load this igb driver then yes, it will look just like a > standard igbX device. > Hi, Jack. I set up qemu-kvm on openSUSE 11.3 with 82576 PCI device as you described. Guest fails to attach with: igb0: <Intel(R) PRO/1000 Network Connection version - 2.0.1> mem 0xf2060000-0xf2063fff,0xf2064000-0xf2067fff at device 5.0 on pci0 igb0: Unable to allocate bus resource: interrupt device_attach: igb0 attach returned 6 igb0@pci0:0:5:0: class=0x020000 card=0xa03c8086 chip=0x10ca8086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' class = network subclass = ethernet cap 11[40] = MSI-X supports 3 messages in map 0x1c Did I missed something? -- wbr, pluknet
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