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Date: Tue, 6 Oct 2015 22:36:32 +0100 From: Stephen Hemminger <stephen@...workplumber.org> To: Vlad Zolotarov <vladz@...udius-systems.com> Cc: linux-kernel@...r.kernel.org, mst@...hat.com, hjk@...sjkoch.de, corbet@....net, gregkh@...uxfoundation.org, bruce.richardson@...el.com, avi@...udius-systems.com, gleb@...udius-systems.com, alexander.duyck@...il.com Subject: Re: [PATCH v5 3/4] uio_pci_generic: add MSI/MSI-X support On Tue, 6 Oct 2015 20:17:38 +0300 Vlad Zolotarov <vladz@...udius-systems.com> wrote: > + int i, vectors = pci_msix_vec_count(pdev); > + > + if (vectors <= 0) > + return false; > + Since devices like fm10k can thousands of MSI vectors, and often systems have limited number of slots, some resource control is needed. I limited the number in my version. That was one of the reasons for the late binding of MSI vectors. Intended to allow application to ask for how many it wanted. -- 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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