diff options
Diffstat (limited to 'drivers/pci/pcie/err.c')
-rw-r--r-- | drivers/pci/pcie/err.c | 52 |
1 files changed, 7 insertions, 45 deletions
diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index 1ac57e9e1e71..9d5b71a7f837 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -146,49 +146,9 @@ out: return 0; } -/** - * default_reset_link - default reset function - * @dev: pointer to pci_dev data structure - * - * Invoked when performing link reset on a Downstream Port or a - * Root Port with no aer driver. - */ -static pci_ers_result_t default_reset_link(struct pci_dev *dev) -{ - int rc; - - rc = pci_bus_error_reset(dev); - pci_printk(KERN_DEBUG, dev, "downstream link has been reset\n"); - return rc ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; -} - -static pci_ers_result_t reset_link(struct pci_dev *dev, u32 service) -{ - pci_ers_result_t status; - struct pcie_port_service_driver *driver = NULL; - - driver = pcie_port_find_service(dev, service); - if (driver && driver->reset_link) { - status = driver->reset_link(dev); - } else if (pcie_downstream_port(dev)) { - status = default_reset_link(dev); - } else { - pci_printk(KERN_DEBUG, dev, "no link-reset support at upstream device %s\n", - pci_name(dev)); - return PCI_ERS_RESULT_DISCONNECT; - } - - if (status != PCI_ERS_RESULT_RECOVERED) { - pci_printk(KERN_DEBUG, dev, "link reset at upstream device %s failed\n", - pci_name(dev)); - return PCI_ERS_RESULT_DISCONNECT; - } - - return status; -} - -void pcie_do_recovery(struct pci_dev *dev, enum pci_channel_state state, - u32 service) +void pcie_do_recovery(struct pci_dev *dev, + enum pci_channel_state state, + pci_ers_result_t (*reset_link)(struct pci_dev *pdev)) { pci_ers_result_t status = PCI_ERS_RESULT_CAN_RECOVER; struct pci_bus *bus; @@ -205,9 +165,11 @@ void pcie_do_recovery(struct pci_dev *dev, enum pci_channel_state state, pci_dbg(dev, "broadcast error_detected message\n"); if (state == pci_channel_io_frozen) { pci_walk_bus(bus, report_frozen_detected, &status); - status = reset_link(dev, service); - if (status != PCI_ERS_RESULT_RECOVERED) + status = reset_link(dev); + if (status != PCI_ERS_RESULT_RECOVERED) { + pci_warn(dev, "link reset failed\n"); goto failed; + } } else { pci_walk_bus(bus, report_normal_detected, &status); } |