23  * @nvec: how many MSIs have been requested?
29 static int pci_msi_supported(struct pci_dev *dev, int nvec)  in pci_msi_supported()  argument
43 	 *  b) the list manipulation code assumes nvec >= 1.  in pci_msi_supported()
45 	if (nvec < 1)  in pci_msi_supported()
285 static int msi_setup_msi_desc(struct pci_dev *dev, int nvec,  in msi_setup_msi_desc()  argument
302 	desc.nvec_used			= nvec;  in msi_setup_msi_desc()
307 	desc.pci.msi_attrib.multiple	= ilog2(__roundup_pow_of_two(nvec));  in msi_setup_msi_desc()
342  * @nvec: number of interrupts to allocate
351 static int msi_capability_init(struct pci_dev *dev, int nvec,  in msi_capability_init()  argument
359 	if (nvec > 1 && !pci_msi_domain_supports(dev, MSI_FLAG_MULTI_PCI_MSI, ALLOW_LEGACY))  in msi_capability_init()
370 		masks = irq_create_affinity_masks(nvec, affd);  in msi_capability_init()
373 	ret = msi_setup_msi_desc(dev, nvec, masks);  in msi_capability_init()
388 	ret = pci_msi_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI);  in msi_capability_init()
418 	int nvec;  in __pci_enable_msi_range()  local
436 	nvec = pci_msi_vec_count(dev);  in __pci_enable_msi_range()
437 	if (nvec < 0)  in __pci_enable_msi_range()
438 		return nvec;  in __pci_enable_msi_range()
439 	if (nvec < minvec)  in __pci_enable_msi_range()
442 	if (nvec > maxvec)  in __pci_enable_msi_range()
443 		nvec = maxvec;  in __pci_enable_msi_range()
454 			nvec = irq_calc_affinity_vectors(minvec, nvec, affd);  in __pci_enable_msi_range()
455 			if (nvec < minvec)  in __pci_enable_msi_range()
459 		rc = msi_capability_init(dev, nvec, affd);  in __pci_enable_msi_range()
461 			return nvec;  in __pci_enable_msi_range()
468 		nvec = rc;  in __pci_enable_msi_range()
619 				int nvec, struct irq_affinity_desc *masks)  in msix_setup_msi_descs()  argument
627 	for (i = 0, curmsk = masks; i < nvec; i++, curmsk++) {  in msix_setup_msi_descs()
666 				 int nvec, struct irq_affinity *affd)  in msix_setup_interrupts()  argument
672 		masks = irq_create_affinity_masks(nvec, affd);  in msix_setup_interrupts()
675 	ret = msix_setup_msi_descs(dev, entries, nvec, masks);  in msix_setup_interrupts()
679 	ret = pci_msi_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX);  in msix_setup_interrupts()
703  * @nvec: number of @entries
711 				int nvec, struct irq_affinity *affd)  in msix_capability_init()  argument
736 	ret = msix_setup_interrupts(dev, entries, nvec, affd);  in msix_capability_init()
764 static bool pci_msix_validate_entries(struct pci_dev *dev, struct msix_entry *entries, int nvec)  in pci_msix_validate_entries()  argument
774 	for (i = 0; i < nvec; i++) {  in pci_msix_validate_entries()
776 		for (j = i + 1; j < nvec; j++) {  in pci_msix_validate_entries()
790 	int hwsize, rc, nvec = maxvec;  in __pci_enable_msix_range()  local
807 	if (!pci_msi_supported(dev, nvec) || dev->current_state != PCI_D0)  in __pci_enable_msix_range()
814 	if (!pci_msix_validate_entries(dev, entries, nvec))  in __pci_enable_msix_range()
817 	if (hwsize < nvec) {  in __pci_enable_msix_range()
820 			hwsize = nvec;  in __pci_enable_msix_range()
822 			nvec = hwsize;  in __pci_enable_msix_range()
825 	if (nvec < minvec)  in __pci_enable_msix_range()
837 			nvec = irq_calc_affinity_vectors(minvec, nvec, affd);  in __pci_enable_msix_range()
838 			if (nvec < minvec)  in __pci_enable_msix_range()
842 		rc = msix_capability_init(dev, entries, nvec, affd);  in __pci_enable_msix_range()
844 			return nvec;  in __pci_enable_msix_range()
851 		nvec = rc;  in __pci_enable_msix_range()