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Groups > linux.kernel > #1573935

automatic IRQ affinity for virtio V3

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Hi Michael, hi Jason,

This patches applies a few cleanups to the virtio PCI interrupt handling
code, and then converts the virtio PCI code to use the automatic MSI-X
vectors spreading, as well as using the information in virtio-blk
and virtio-scsi to automatically align the blk-mq queues to the MSI-X
vectors.

Changes since V2:
 - remove a redundant callback check
 - calculate ->msix_vectors correctly
 - add a few Reviewed-by: tags for Jason

Changes since V1:
 - dropped the patches already merged for 4.10-rc
 - new patch to remove struct virtio_pci_vq_info
 - improve probe error handling by unwinding step by step
 - new patch to convert virtio-scsi

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automatic IRQ affinity for virtio V3 Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 9/9] virtio_scsi: use virtio IRQ affinity Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 7/9] blk-mq: provide a default queue mapping for virtio device Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 8/9] virtio_blk: use virtio IRQ affinity Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
    Re: [PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info Jason Wang <jasowang@redhat.com> - 2017-02-07 08:20 +0100
      Re: [PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info Christoph Hellwig <hch@lst.de> - 2017-02-07 10:40 +0100
        Re: [PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info Jason Wang <jasowang@redhat.com> - 2017-02-08 04:00 +0100
  [PATCH 6/9] virtio: provide a method to get the IRQ affinity mask for a virtqueue Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 2/9] virtio_pci: use shared interrupts for virtqueues Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
    Re: [PATCH 2/9] virtio_pci: use shared interrupts for virtqueues Jason Wang <jasowang@redhat.com> - 2017-02-07 08:20 +0100
  [PATCH 4/9] virtio_pci: simplify MSI-X setup Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  [PATCH 3/9] virtio_pci: don't duplicate the msix_enable flag in struct pci_dev Christoph Hellwig <hch@lst.de> - 2017-02-05 18:20 +0100
  Re: automatic IRQ affinity for virtio V3 Christoph Hellwig <hch@infradead.org> - 2017-02-09 15:10 +0100
    Re: automatic IRQ affinity for virtio V3 "Michael S. Tsirkin" <mst@redhat.com> - 2017-02-09 17:10 +0100

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