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Merge branch 'remotes/lorenzo/pci/vmd'
- Whitelist VMD devices with fast interrupt handlers to avoid sharing vectors with slow handlers (Keith Busch) * remotes/lorenzo/pci/vmd: PCI: vmd: White list for fast interrupt handlers
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@ -197,9 +197,20 @@ static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd, struct msi_desc *d
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int i, best = 1;
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unsigned long flags;
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if (pci_is_bridge(msi_desc_to_pci_dev(desc)) || vmd->msix_count == 1)
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if (vmd->msix_count == 1)
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return &vmd->irqs[0];
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/*
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* White list for fast-interrupt handlers. All others will share the
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* "slow" interrupt vector.
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*/
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switch (msi_desc_to_pci_dev(desc)->class) {
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case PCI_CLASS_STORAGE_EXPRESS:
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break;
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default:
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return &vmd->irqs[0];
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}
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raw_spin_lock_irqsave(&list_lock, flags);
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for (i = 1; i < vmd->msix_count; i++)
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if (vmd->irqs[i].count < vmd->irqs[best].count)
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