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
This commit is contained in:
commit
fa687fb9ce
|
@ -197,9 +197,20 @@ static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd, struct msi_desc *d
|
|||
int i, best = 1;
|
||||
unsigned long flags;
|
||||
|
||||
if (pci_is_bridge(msi_desc_to_pci_dev(desc)) || vmd->msix_count == 1)
|
||||
if (vmd->msix_count == 1)
|
||||
return &vmd->irqs[0];
|
||||
|
||||
/*
|
||||
* White list for fast-interrupt handlers. All others will share the
|
||||
* "slow" interrupt vector.
|
||||
*/
|
||||
switch (msi_desc_to_pci_dev(desc)->class) {
|
||||
case PCI_CLASS_STORAGE_EXPRESS:
|
||||
break;
|
||||
default:
|
||||
return &vmd->irqs[0];
|
||||
}
|
||||
|
||||
raw_spin_lock_irqsave(&list_lock, flags);
|
||||
for (i = 1; i < vmd->msix_count; i++)
|
||||
if (vmd->irqs[i].count < vmd->irqs[best].count)
|
||||
|
|
Loading…
Reference in New Issue