diff --git a/drivers/bus/pci/pci_common.c b/drivers/bus/pci/pci_common.c index be7cc1f4e5..66b633051e 100644 --- a/drivers/bus/pci/pci_common.c +++ b/drivers/bus/pci/pci_common.c @@ -403,6 +403,36 @@ pci_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, return NULL; } +/* + * find the device which encounter the failure, by iterate over all device on + * PCI bus to check if the memory failure address is located in the range + * of the BARs of the device. + */ +static struct rte_pci_device * +pci_find_device_by_addr(const void *failure_addr) +{ + struct rte_pci_device *pdev = NULL; + uint64_t check_point, start, end, len; + int i; + + check_point = (uint64_t)(uintptr_t)failure_addr; + + FOREACH_DEVICE_ON_PCIBUS(pdev) { + for (i = 0; i != RTE_DIM(pdev->mem_resource); i++) { + start = (uint64_t)(uintptr_t)pdev->mem_resource[i].addr; + len = pdev->mem_resource[i].len; + end = start + len; + if (check_point >= start && check_point < end) { + RTE_LOG(DEBUG, EAL, "Failure address %16.16" + PRIx64" belongs to device %s!\n", + check_point, pdev->device.name); + return pdev; + } + } + } + return NULL; +} + static int pci_hot_unplug_handler(struct rte_device *dev) { @@ -430,6 +460,29 @@ pci_hot_unplug_handler(struct rte_device *dev) return ret; } +static int +pci_sigbus_handler(const void *failure_addr) +{ + struct rte_pci_device *pdev = NULL; + int ret = 0; + + pdev = pci_find_device_by_addr(failure_addr); + if (!pdev) { + /* It is a generic sigbus error, no bus would handle it. */ + ret = 1; + } else { + /* The sigbus error is caused of hot-unplug. */ + ret = pci_hot_unplug_handler(&pdev->device); + if (ret) { + RTE_LOG(ERR, EAL, + "Failed to handle hot-unplug for device %s", + pdev->name); + ret = -1; + } + } + return ret; +} + static int pci_plug(struct rte_device *dev) { @@ -462,6 +515,7 @@ struct rte_pci_bus rte_pci_bus = { .get_iommu_class = rte_pci_get_iommu_class, .dev_iterate = rte_pci_dev_iterate, .hot_unplug_handler = pci_hot_unplug_handler, + .sigbus_handler = pci_sigbus_handler, }, .device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list), .driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list),