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Message-ID: <20131025100103.GA317@dhcp-26-207.brq.redhat.com> Date: Fri, 25 Oct 2013 12:01:04 +0200 From: Alexander Gordeev <agordeev@...hat.com> To: David Laight <David.Laight@...LAB.COM> Cc: Mark Lord <kernel@...rt.ca>, Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>, Michael Ellerman <michael@...erman.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Ben Hutchings <bhutchings@...arflare.com>, "H. Peter Anvin" <hpa@...or.com>, linux-pci@...r.kernel.org Subject: Re: [PATCH RFC v2 12/29] PCI/MSI: Introduce pcim_enable_msi*() family helpers On Fri, Oct 25, 2013 at 10:10:02AM +0100, David Laight wrote: > What this doesn't resolve is a driver requesting a lot of interrupts > early on and leaving none for later drivers. If this problem really exists anywhere besides pSeries? I can imagine x86 hitting lack of vectors in interrupt table when number of CPUs exceeds hundreds, but do we have this problem now? > Really the system needs to allocate the minimum number to all > drivers before giving out any extra ones - I've NFI how this > would be arranged! Do not know. The pSeries quota approach seems more reasonable to me. > David -- Regards, Alexander Gordeev agordeev@...hat.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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