Date: Mon, 07 Dec 2009 17:51:06 -0800 From: Julian Elischer <julian@elischer.org> To: David Christensen <davidch@broadcom.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Rafael Ganascim <rganascim@gmail.com> Subject: Re: bge driver and MSI Message-ID: <4B1DB10A.5060005@elischer.org> In-Reply-To: <5D267A3F22FD854F8F48B3D2B52381933A3169363C@IRVEXCHCCR01.corp.ad.broadcom.com> References: <2f7feda40912010931i3cf7d90dmb2a8d08ecd40589f@mail.gmail.com> <5D267A3F22FD854F8F48B3D2B52381933A3169363C@IRVEXCHCCR01.corp.ad.broadcom.com>
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David Christensen wrote: >> Can the bge driver use more than one MSI message? If >> possible, what the advantage of this on a SMP system (better >> CPU distribution on interrupts?)? >> [...] >> -- > > MSI is broken on this device (actually all PCI/PCI-X devices > in the 57XX family). The interrupt will be asserted as > expected but masking the interrupt does not work. For those > newer 1Gb PCIe devices that do work correctly with MSI, only > a single message is actually supported. > > Dave Might be a good thing of someone would work up a man page paragraph to this effect.
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