On Tue, Jul 12, 2016 at 06:20:13PM +0900, Christoph Hellwig wrote: > This series adds a new set of functions that transparently use the right > type of interrupt (MSI-X, MSI, legacy interrupt line) for a PCI device, > and if multiple vectors are supported automatically spreads the irq > routing to different CPUs. This will allow the block layer (and hopefully > other consumers in the future) to use this information for mapping > queues to fit the interrupt affinity. > > For the last patche to work you need to merge the irq/for-block branch of > > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > > first. > > There also is a git tree available at: > > git://git.infradead.org/users/hch/block.git pci-irq-spreading > > Gitweb: > > http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/pci-irq-spreading > > Changes since V1 > - change return values for the minmum vector check > - improve the documentation > > Changes since automatic interrupt affinity for MSI/MSI-X capable devices V3: > - add PCI_IRQ_NOLEGACY flag > - various error code fixes > - reuse the pci_enable_msi(x)_range code instead of duplicating it > - don't allocate msix_entry structures for the MSI-X case I merged the irq/for-block branch, applied this series, and added Alexander's Reviewed-by to the patches that didn't have it already. As far as the if/return/else construct: if (x) return y; else if (z) ... I removed the "else" in the other occurrences so the style is consistently: if (x) return y; if (z) ... This is all on my pci/msi-affinity branch for v4.8. Thanks for all the work; I think this is a very nice change, and it's great that all the documentation is updated as well. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
