91 	struct pci_sriov *iov = dev->sriov;  in pci_iov_set_numvfs()  local
93 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, nr_virtfn);  in pci_iov_set_numvfs()
94 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_OFFSET, &iov->offset);  in pci_iov_set_numvfs()
95 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_STRIDE, &iov->stride);  in pci_iov_set_numvfs()
107 	struct pci_sriov *iov = dev->sriov;  in compute_max_vf_buses()  local
110 	for (nr_virtfn = iov->total_VFs; nr_virtfn; nr_virtfn--) {  in compute_max_vf_buses()
112 		if (!iov->offset || (nr_virtfn > 1 && !iov->stride)) {  in compute_max_vf_buses()
118 		if (busnr > iov->max_VF_buses)  in compute_max_vf_buses()
119 			iov->max_VF_buses = busnr;  in compute_max_vf_buses()
317 	struct pci_sriov *iov = dev->sriov;  in pci_iov_scan_device()  local
327 	virtfn->device = iov->vf_device;  in pci_iov_scan_device()
657 	struct pci_sriov *iov = dev->sriov;  in sriov_enable()  local
664 	if (iov->num_VFs)  in sriov_enable()
667 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial);  in sriov_enable()
668 	if (initial > iov->total_VFs ||  in sriov_enable()
669 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs)))  in sriov_enable()
672 	if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs ||  in sriov_enable()
673 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial)))  in sriov_enable()
688 	if (nres != iov->nres) {  in sriov_enable()
705 	if (iov->link != dev->devfn) {  in sriov_enable()
706 		pdev = pci_get_slot(dev->bus, iov->link);  in sriov_enable()
722 	iov->initial_VFs = initial;  in sriov_enable()
733 	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;  in sriov_enable()
735 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
744 	iov->num_VFs = nr_virtfn;  in sriov_enable()
749 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_enable()
751 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
757 	if (iov->link != dev->devfn)  in sriov_enable()
766 	struct pci_sriov *iov = dev->sriov;  in sriov_del_vfs()  local
769 	for (i = 0; i < iov->num_VFs; i++)  in sriov_del_vfs()
775 	struct pci_sriov *iov = dev->sriov;  in sriov_disable()  local
777 	if (!iov->num_VFs)  in sriov_disable()
781 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_disable()
783 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_disable()
789 	if (iov->link != dev->devfn)  in sriov_disable()
792 	iov->num_VFs = 0;  in sriov_disable()
803 	struct pci_sriov *iov;  in sriov_init()  local
840 	iov = kzalloc_obj(*iov);  in sriov_init()
841 	if (!iov)  in sriov_init()
871 		iov->barsz[i] = resource_size(res);  in sriov_init()
879 	iov->pos = pos;  in sriov_init()
880 	iov->nres = nres;  in sriov_init()
881 	iov->ctrl = ctrl;  in sriov_init()
882 	iov->total_VFs = total;  in sriov_init()
883 	iov->driver_max_VFs = total;  in sriov_init()
884 	pci_read_config_word(dev, pos + PCI_SRIOV_VF_DID, &iov->vf_device);  in sriov_init()
885 	iov->pgsz = pgsz;  in sriov_init()
886 	iov->self = dev;  in sriov_init()
887 	iov->drivers_autoprobe = true;  in sriov_init()
888 	pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);  in sriov_init()
889 	pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);  in sriov_init()
891 		iov->link = PCI_DEVFN(PCI_SLOT(dev->devfn), iov->link);  in sriov_init()
892 	iov->vf_rebar_cap = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VF_REBAR);  in sriov_init()
895 		iov->dev = pci_dev_get(pdev);  in sriov_init()
897 		iov->dev = dev;  in sriov_init()
899 	dev->sriov = iov;  in sriov_init()
916 	kfree(iov);  in sriov_init()
959 	struct pci_sriov *iov = dev->sriov;  in sriov_restore_state()  local
961 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &ctrl);  in sriov_restore_state()
970 	ctrl |= iov->ctrl & PCI_SRIOV_CTRL_ARI;  in sriov_restore_state()
971 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, ctrl);  in sriov_restore_state()
976 	pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz);  in sriov_restore_state()
977 	pci_iov_set_numvfs(dev, iov->num_VFs);  in sriov_restore_state()
978 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_restore_state()
979 	if (iov->ctrl & PCI_SRIOV_CTRL_VFE)  in sriov_restore_state()
1019 	struct pci_sriov *iov = dev->sriov;  in pci_iov_remove()  local
1024 	iov->driver_max_VFs = iov->total_VFs;  in pci_iov_remove()
1025 	if (iov->num_VFs)  in pci_iov_remove()
1038 	struct pci_sriov *iov = dev->is_physfn ? dev->sriov : NULL;  in pci_iov_update_resource()  local
1051 	if (!iov)  in pci_iov_update_resource()
1054 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &cmd);  in pci_iov_update_resource()
1079 	reg = iov->pos + PCI_SRIOV_BAR + 4 * vf_bar;  in pci_iov_update_resource()