43 	struct pci_sriov *iov = dev->sriov;  in pci_iov_set_numvfs()  local
45 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, nr_virtfn);  in pci_iov_set_numvfs()
46 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_OFFSET, &iov->offset);  in pci_iov_set_numvfs()
47 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_STRIDE, &iov->stride);  in pci_iov_set_numvfs()
59 	struct pci_sriov *iov = dev->sriov;  in compute_max_vf_buses()  local
62 	for (nr_virtfn = iov->total_VFs; nr_virtfn; nr_virtfn--) {  in compute_max_vf_buses()
64 		if (!iov->offset || (nr_virtfn > 1 && !iov->stride)) {  in compute_max_vf_buses()
70 		if (busnr > iov->max_VF_buses)  in compute_max_vf_buses()
71 			iov->max_VF_buses = busnr;  in compute_max_vf_buses()
167 	struct pci_sriov *iov = dev->sriov;  in pci_iov_add_virtfn()  local
180 	virtfn->device = iov->vf_device;  in pci_iov_add_virtfn()
468 	struct pci_sriov *iov = dev->sriov;  in sriov_enable()  local
475 	if (iov->num_VFs)  in sriov_enable()
478 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial);  in sriov_enable()
479 	if (initial > iov->total_VFs ||  in sriov_enable()
480 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs)))  in sriov_enable()
483 	if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs ||  in sriov_enable()
484 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial)))  in sriov_enable()
494 	if (nres != iov->nres) {  in sriov_enable()
511 	if (iov->link != dev->devfn) {  in sriov_enable()
512 		pdev = pci_get_slot(dev->bus, iov->link);  in sriov_enable()
528 	iov->initial_VFs = initial;  in sriov_enable()
539 	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;  in sriov_enable()
541 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
550 	iov->num_VFs = nr_virtfn;  in sriov_enable()
555 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_enable()
557 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
563 	if (iov->link != dev->devfn)  in sriov_enable()
572 	struct pci_sriov *iov = dev->sriov;  in sriov_del_vfs()  local
575 	for (i = 0; i < iov->num_VFs; i++)  in sriov_del_vfs()
581 	struct pci_sriov *iov = dev->sriov;  in sriov_disable()  local
583 	if (!iov->num_VFs)  in sriov_disable()
587 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_disable()
589 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_disable()
595 	if (iov->link != dev->devfn)  in sriov_disable()
598 	iov->num_VFs = 0;  in sriov_disable()
609 	struct pci_sriov *iov;  in sriov_init()  local
644 	iov = kzalloc(sizeof(*iov), GFP_KERNEL);  in sriov_init()
645 	if (!iov)  in sriov_init()
666 		iov->barsz[i] = resource_size(res);  in sriov_init()
674 	iov->pos = pos;  in sriov_init()
675 	iov->nres = nres;  in sriov_init()
676 	iov->ctrl = ctrl;  in sriov_init()
677 	iov->total_VFs = total;  in sriov_init()
678 	iov->driver_max_VFs = total;  in sriov_init()
679 	pci_read_config_word(dev, pos + PCI_SRIOV_VF_DID, &iov->vf_device);  in sriov_init()
680 	iov->pgsz = pgsz;  in sriov_init()
681 	iov->self = dev;  in sriov_init()
682 	iov->drivers_autoprobe = true;  in sriov_init()
683 	pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);  in sriov_init()
684 	pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);  in sriov_init()
686 		iov->link = PCI_DEVFN(PCI_SLOT(dev->devfn), iov->link);  in sriov_init()
689 		iov->dev = pci_dev_get(pdev);  in sriov_init()
691 		iov->dev = dev;  in sriov_init()
693 	dev->sriov = iov;  in sriov_init()
710 	kfree(iov);  in sriov_init()
729 	struct pci_sriov *iov = dev->sriov;  in sriov_restore_state()  local
731 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &ctrl);  in sriov_restore_state()
740 	ctrl |= iov->ctrl & PCI_SRIOV_CTRL_ARI;  in sriov_restore_state()
741 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, ctrl);  in sriov_restore_state()
746 	pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz);  in sriov_restore_state()
747 	pci_iov_set_numvfs(dev, iov->num_VFs);  in sriov_restore_state()
748 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_restore_state()
749 	if (iov->ctrl & PCI_SRIOV_CTRL_VFE)  in sriov_restore_state()
789 	struct pci_sriov *iov = dev->sriov;  in pci_iov_remove()  local
794 	iov->driver_max_VFs = iov->total_VFs;  in pci_iov_remove()
795 	if (iov->num_VFs)  in pci_iov_remove()
808 	struct pci_sriov *iov = dev->is_physfn ? dev->sriov : NULL;  in pci_iov_update_resource()  local
821 	if (!iov)  in pci_iov_update_resource()
824 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &cmd);  in pci_iov_update_resource()
849 	reg = iov->pos + PCI_SRIOV_BAR + 4 * vf_bar;  in pci_iov_update_resource()