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Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh_driver.c')
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 3269d2cd428..045cd7a3733 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -77,8 +77,12 @@ static int irq_in_use(unsigned int irq)
}
/* ------------------------------------------------------- */
-/** eeh_report_error - report an EEH error to each device,
- * collect up and merge the device responses.
+/**
+ * eeh_report_error - report pci error to each device driver
+ *
+ * Report an EEH error to each device driver, collect up and
+ * merge the device driver responses. Cumulative response
+ * passed back in "userdata".
*/
static void eeh_report_error(struct pci_dev *dev, void *userdata)
@@ -108,8 +112,8 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata)
rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
}
-/** eeh_report_reset -- tell this device that the pci slot
- * has been reset.
+/**
+ * eeh_report_reset - tell device that slot has been reset
*/
static void eeh_report_reset(struct pci_dev *dev, void *userdata)
@@ -132,6 +136,10 @@ static void eeh_report_reset(struct pci_dev *dev, void *userdata)
driver->err_handler->slot_reset(dev);
}
+/**
+ * eeh_report_resume - tell device to resume normal operations
+ */
+
static void eeh_report_resume(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
@@ -148,6 +156,13 @@ static void eeh_report_resume(struct pci_dev *dev, void *userdata)
driver->err_handler->resume(dev);
}
+/**
+ * eeh_report_failure - tell device driver that device is dead.
+ *
+ * This informs the device driver that the device is permanently
+ * dead, and that no further recovery attempts will be made on it.
+ */
+
static void eeh_report_failure(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
@@ -190,11 +205,11 @@ static void eeh_report_failure(struct pci_dev *dev, void *userdata)
/**
* eeh_reset_device() -- perform actual reset of a pci slot
- * Args: bus: pointer to the pci bus structure corresponding
+ * @bus: pointer to the pci bus structure corresponding
* to the isolated slot. A non-null value will
* cause all devices under the bus to be removed
* and then re-added.
- * pe_dn: pointer to a "Partionable Endpoint" device node.
+ * @pe_dn: pointer to a "Partionable Endpoint" device node.
* This is the top-level structure on which pci
* bus resets can be performed.
*/