Date: Wed, 13 Feb 2013 07:55:47 +0000 From: "Teske, Devin" <Devin.Teske@fisglobal.com> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: RE: ix? / Intel(R) PRO/10GbE Message-ID: <13CA24D6AB415D428143D44749F57D7201EA7B3E@ltcfiswmsgmb21> In-Reply-To: <E1U5WmA-000Or3-TL@kabab.cs.huji.ac.il> References: <E1U5Hg8-0007wo-5r@kabab.cs.huji.ac.il> <13CA24D6AB415D428143D44749F57D7201EA7586@ltcfiswmsgmb21>, <E1U5WmA-000Or3-TL@kabab.cs.huji.ac.il>
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On Tue, 12 Feb 2013, Daniel Braniss wrote: > > On Tue, 12 Feb 2013, Daniel Braniss wrote: > > > > > I finally got a 10G card that is recognized by FreeBSD (9.1-stable): > > > ... > > > ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 2.4.8>= port > > > 0xecc0-0xecdf mem 0xd9e80000-0xd9efffff,0xd9ff8000-0xd9ffbfff irq 40 = at d=3Device > > > 0.0 on pci4 > > > ix0: Using MSIX interrupts with 9 vectors > > > ix0: RX Descriptors exceed system mbuf max, using default instead! > > > > From reading sys/dev/ixgbe/README: > > > > echo "kern.ipc.nmbclusters=3D262144" >> /etc/sysctl.conf > > echo "kern.ipc.nmbjumbop=3D262144" >> /etc/sysctl.conf > > reboot >=20 > but this only works if the driver is loaded after > the sysctl is executed! > it's better to put it in /boot/loader.conf Not necessarily, it depends when the driver grabs the mbufs. In the case of= the igb/ixgb/ixgbe drivers, this happens when the interface is brought up = (not when the driver is loaded, nor when the driver probes/attaches a PHY).= In other words, you don't have to worry about mbuf exhaustion until you sa= y "ifconfig ix0 up" (in the case of ixgbe, bringing up even a single interf= ace is enough through the default mbufs and require more). Since sysctl.conf is processed before the network is brought up, putting th= e parameters in sysctl.conf will be perfectly suitable for most needs (unle= ss for some strange reason you need to "up" an interface before sysctl.conf= is processed). --=20 Devin _____________ The information contained in this message is proprietary and/or confidentia= l. If you are not the intended recipient, please: (i) delete the message an= d all copies; (ii) do not disclose, distribute or use the message in any ma= nner; and (iii) notify the sender immediately. In addition, please be aware= that any message addressed to our domain is subject to archiving and revie= w by persons other than the intended recipient. Thank you.
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