diff options
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_core.c | 48 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 2 |
2 files changed, 39 insertions, 11 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index aac7006949f1..d0c973685868 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -108,6 +108,34 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev) } #endif /* 0 */ + +static void set_device_error_reporting(struct pci_dev *dev, void *data) +{ + bool enable = *((bool *)data); + + if (dev->pcie_type != PCIE_RC_PORT && + dev->pcie_type != PCIE_SW_UPSTREAM_PORT && + dev->pcie_type != PCIE_SW_DOWNSTREAM_PORT) + return; + + if (enable) + pci_enable_pcie_error_reporting(dev); + else + pci_disable_pcie_error_reporting(dev); +} + +/** + * set_downstream_devices_error_reporting - enable/disable the error reporting bits on the root port and its downstream ports. + * @dev: pointer to root port's pci_dev data structure + * @enable: true = enable error reporting, false = disable error reporting. + */ +static void set_downstream_devices_error_reporting(struct pci_dev *dev, + bool enable) +{ + set_device_error_reporting(dev, &enable); + pci_walk_bus(dev->subordinate, set_device_error_reporting, &enable); +} + static int find_device_iter(struct device *device, void *data) { struct pci_dev *dev; @@ -525,15 +553,11 @@ void aer_enable_rootport(struct aer_rpc *rpc) pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, ®32); pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32); - /* Enable Root Port device reporting error itself */ - pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, ®16); - reg16 = reg16 | - PCI_EXP_DEVCTL_CERE | - PCI_EXP_DEVCTL_NFERE | - PCI_EXP_DEVCTL_FERE | - PCI_EXP_DEVCTL_URRE; - pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL, - reg16); + /* + * Enable error reporting for the root port device and downstream port + * devices. + */ + set_downstream_devices_error_reporting(pdev, true); /* Enable Root Port's interrupt in response to error messages */ pci_write_config_dword(pdev, @@ -553,6 +577,12 @@ static void disable_root_aer(struct aer_rpc *rpc) u32 reg32; int pos; + /* + * Disable error reporting for the root port device and downstream port + * devices. + */ + set_downstream_devices_error_reporting(pdev, false); + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); /* Disable Root's interrupt in response to error messages */ pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0); diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index f9b874eaeb9f..248b4db91552 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -97,8 +97,6 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev, pcie_portdrv_save_config(dev); - pci_enable_pcie_error_reporting(dev); - return 0; } |