45 	struct pci_sriov *iov = dev->sriov;  in pci_iov_set_numvfs()  local
47 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, nr_virtfn);  in pci_iov_set_numvfs()
48 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_OFFSET, &iov->offset);  in pci_iov_set_numvfs()
49 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_STRIDE, &iov->stride);  in pci_iov_set_numvfs()
61 	struct pci_sriov *iov = dev->sriov;  in compute_max_vf_buses()  local
64 	for (nr_virtfn = iov->total_VFs; nr_virtfn; nr_virtfn--) {  in compute_max_vf_buses()
66 		if (!iov->offset || (nr_virtfn > 1 && !iov->stride)) {  in compute_max_vf_buses()
72 		if (busnr > iov->max_VF_buses)  in compute_max_vf_buses()
73 			iov->max_VF_buses = busnr;  in compute_max_vf_buses()
146 	struct pci_sriov *iov = dev->sriov;  in pci_iov_add_virtfn()  local
159 	virtfn->device = iov->vf_device;  in pci_iov_add_virtfn()
262 	struct pci_sriov *iov = dev->sriov;  in sriov_enable()  local
269 	if (iov->num_VFs)  in sriov_enable()
272 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial);  in sriov_enable()
273 	if (initial > iov->total_VFs ||  in sriov_enable()
274 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs)))  in sriov_enable()
277 	if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs ||  in sriov_enable()
278 	    (!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial)))  in sriov_enable()
288 	if (nres != iov->nres) {  in sriov_enable()
305 	if (iov->link != dev->devfn) {  in sriov_enable()
306 		pdev = pci_get_slot(dev->bus, iov->link);  in sriov_enable()
322 	iov->initial_VFs = initial;  in sriov_enable()
333 	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;  in sriov_enable()
335 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
346 	iov->num_VFs = nr_virtfn;  in sriov_enable()
355 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_enable()
357 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_enable()
363 	if (iov->link != dev->devfn)  in sriov_enable()
373 	struct pci_sriov *iov = dev->sriov;  in sriov_disable()  local
375 	if (!iov->num_VFs)  in sriov_disable()
378 	for (i = 0; i < iov->num_VFs; i++)  in sriov_disable()
381 	iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);  in sriov_disable()
383 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_disable()
389 	if (iov->link != dev->devfn)  in sriov_disable()
392 	iov->num_VFs = 0;  in sriov_disable()
403 	struct pci_sriov *iov;  in sriov_init()  local
438 	iov = kzalloc(sizeof(*iov), GFP_KERNEL);  in sriov_init()
439 	if (!iov)  in sriov_init()
460 		iov->barsz[i] = resource_size(res);  in sriov_init()
468 	iov->pos = pos;  in sriov_init()
469 	iov->nres = nres;  in sriov_init()
470 	iov->ctrl = ctrl;  in sriov_init()
471 	iov->total_VFs = total;  in sriov_init()
472 	iov->driver_max_VFs = total;  in sriov_init()
473 	pci_read_config_word(dev, pos + PCI_SRIOV_VF_DID, &iov->vf_device);  in sriov_init()
474 	iov->pgsz = pgsz;  in sriov_init()
475 	iov->self = dev;  in sriov_init()
476 	iov->drivers_autoprobe = true;  in sriov_init()
477 	pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);  in sriov_init()
478 	pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);  in sriov_init()
480 		iov->link = PCI_DEVFN(PCI_SLOT(dev->devfn), iov->link);  in sriov_init()
483 		iov->dev = pci_dev_get(pdev);  in sriov_init()
485 		iov->dev = dev;  in sriov_init()
487 	dev->sriov = iov;  in sriov_init()
504 	kfree(iov);  in sriov_init()
523 	struct pci_sriov *iov = dev->sriov;  in sriov_restore_state()  local
525 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &ctrl);  in sriov_restore_state()
534 	ctrl |= iov->ctrl & PCI_SRIOV_CTRL_ARI;  in sriov_restore_state()
535 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, ctrl);  in sriov_restore_state()
540 	pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz);  in sriov_restore_state()
541 	pci_iov_set_numvfs(dev, iov->num_VFs);  in sriov_restore_state()
542 	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);  in sriov_restore_state()
543 	if (iov->ctrl & PCI_SRIOV_CTRL_VFE)  in sriov_restore_state()
583 	struct pci_sriov *iov = dev->sriov;  in pci_iov_remove()  local
588 	iov->driver_max_VFs = iov->total_VFs;  in pci_iov_remove()
589 	if (iov->num_VFs)  in pci_iov_remove()
602 	struct pci_sriov *iov = dev->is_physfn ? dev->sriov : NULL;  in pci_iov_update_resource()  local
615 	if (!iov)  in pci_iov_update_resource()
618 	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &cmd);  in pci_iov_update_resource()
643 	reg = iov->pos + PCI_SRIOV_BAR + 4 * vf_bar;  in pci_iov_update_resource()