platforms/pseries/eeh_pseries.c

77 		struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
79 		edev->pe_config_addr =  (pdn->busno << 16) | (pdn->devfn << 8);
80 		eeh_pe_tree_remove(edev); /* Remove as it is adding to bus pe */
81 		eeh_pe_tree_insert(edev, physfn_pe);   /* Add as VF PE type */
290 	struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
295 	if (!edev || !edev->pcie_cap)
319  * @edev: EEH device
325 static struct eeh_pe *pseries_eeh_pe_get_parent(struct eeh_dev *edev)
328 	struct pci_dn *pdn = eeh_dev_to_pdn(edev);
335 	if (edev->physfn)
336 		pdn = pci_get_pdn(edev->physfn);
367 	struct eeh_dev *edev;
380 	edev = pdn_to_eeh_dev(pdn);
381 	if (!edev)
390 	if (edev->pe)
401 	eeh_edev_dbg(edev, "Probing device\n");
408 	edev->pcix_cap = pseries_eeh_find_cap(pdn, PCI_CAP_ID_PCIX);
409 	edev->pcie_cap = pseries_eeh_find_cap(pdn, PCI_CAP_ID_EXP);
410 	edev->aer_cap = pseries_eeh_find_ecap(pdn, PCI_EXT_CAP_ID_ERR);
411 	edev->mode &= 0xFFFFFF00;
413 		edev->mode |= EEH_DEV_BRIDGE;
414 		if (edev->pcie_cap) {
415 			rtas_pci_dn_read_config(pdn, edev->pcie_cap + PCI_EXP_FLAGS,
419 				edev->mode |= EEH_DEV_ROOT_PORT;
421 				edev->mode |= EEH_DEV_DS_PORT;
428 		eeh_edev_dbg(edev, "Unable to find pe_config_addr\n");
437 	eeh_edev_dbg(edev, "Enabling EEH on device\n");
440 		eeh_edev_dbg(edev, "EEH failed to enable on device (code %d)\n", ret);
444 	edev->pe_config_addr = pe.addr;
448 	parent = pseries_eeh_pe_get_parent(edev);
449 	eeh_pe_tree_insert(edev, parent);
450 	eeh_save_bars(edev);
451 	eeh_edev_dbg(edev, "EEH enabled for device");
456 	eeh_edev_dbg(edev, "EEH is unsupported on device (code = %d)\n", ret);
461 	struct eeh_dev *edev;
472 	edev = pdn_to_eeh_dev(pdn);
473 	if (!edev || !edev->pe)
476 	return edev;
668  * @edev: EEH device handle
675 static int pseries_eeh_read_config(struct eeh_dev *edev, int where, int size, u32 *val)
677 	struct pci_dn *pdn = eeh_dev_to_pdn(edev);
684  * @edev: EEH device handle
691 static int pseries_eeh_write_config(struct eeh_dev *edev, int where, int size, u32 val)
693 	struct pci_dn *pdn = eeh_dev_to_pdn(edev);
722 static int pseries_call_allow_unfreeze(struct eeh_dev *edev)
731 	if (pci_num_vf(edev->physfn ? edev->physfn : edev->pdev)) {
732 		if (edev->pdev->is_physfn) {
733 			cur_vfs = pci_num_vf(edev->pdev);
734 			pdn = eeh_dev_to_pdn(edev);
746 					bus = pci_iov_virtfn_bus(edev->pdev,
748 					devfn = pci_iov_virtfn_devfn(edev->pdev,
757 			pdn = pci_get_pdn(edev->pdev);
758 			physfn_pdn = pci_get_pdn(edev->physfn);
760 			vf_pe_num = physfn_pdn->pe_num_map[edev->vf_index];
772 static int pseries_notify_resume(struct eeh_dev *edev)
774 	if (!edev)
780 	if (edev->pdev->is_physfn || edev->pdev->is_virtfn)
781 		return pseries_call_allow_unfreeze(edev);