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
440 	nvec = pci_msi_vec_count(dev);  in __pci_enable_msi_range()
441 	if (nvec < 0)  in __pci_enable_msi_range()
442 		return nvec;  in __pci_enable_msi_range()
443 	if (nvec < minvec)  in __pci_enable_msi_range()
446 	if (nvec > maxvec)  in __pci_enable_msi_range()
447 		nvec = maxvec;  in __pci_enable_msi_range()
458 			nvec = irq_calc_affinity_vectors(minvec, nvec, affd);  in __pci_enable_msi_range()
459 			if (nvec < minvec)  in __pci_enable_msi_range()
463 		rc = msi_capability_init(dev, nvec, affd);  in __pci_enable_msi_range()
465 			return nvec;  in __pci_enable_msi_range()
472 		nvec = rc;  in __pci_enable_msi_range()
623 				int nvec, struct irq_affinity_desc *masks)  in msix_setup_msi_descs()  argument
631 	for (i = 0, curmsk = masks; i < nvec; i++, curmsk++) {  in msix_setup_msi_descs()
670 				 int nvec, struct irq_affinity *affd)  in msix_setup_interrupts()  argument
676 		masks = irq_create_affinity_masks(nvec, affd);  in msix_setup_interrupts()
679 	ret = msix_setup_msi_descs(dev, entries, nvec, masks);  in msix_setup_interrupts()
683 	ret = pci_msi_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX);  in msix_setup_interrupts()
707  * @nvec: number of @entries
715 				int nvec, struct irq_affinity *affd)  in msix_capability_init()  argument
740 	ret = msix_setup_interrupts(dev, entries, nvec, affd);  in msix_capability_init()
768 static bool pci_msix_validate_entries(struct pci_dev *dev, struct msix_entry *entries, int nvec)  in pci_msix_validate_entries()  argument
778 	for (i = 0; i < nvec; i++) {  in pci_msix_validate_entries()
780 		for (j = i + 1; j < nvec; j++) {  in pci_msix_validate_entries()
794 	int hwsize, rc, nvec = maxvec;  in __pci_enable_msix_range()  local
811 	if (!pci_msi_supported(dev, nvec) || dev->current_state != PCI_D0)  in __pci_enable_msix_range()
818 	if (!pci_msix_validate_entries(dev, entries, nvec))  in __pci_enable_msix_range()
821 	if (hwsize < nvec) {  in __pci_enable_msix_range()
824 			hwsize = nvec;  in __pci_enable_msix_range()
826 			nvec = hwsize;  in __pci_enable_msix_range()
829 	if (nvec < minvec)  in __pci_enable_msix_range()
841 			nvec = irq_calc_affinity_vectors(minvec, nvec, affd);  in __pci_enable_msix_range()
842 			if (nvec < minvec)  in __pci_enable_msix_range()
846 		rc = msix_capability_init(dev, entries, nvec, affd);  in __pci_enable_msix_range()
848 			return nvec;  in __pci_enable_msix_range()
855 		nvec = rc;  in __pci_enable_msix_range()