pci: add bus driver

[dpdk.git] / lib / librte_eal / common / eal_common_pci.c

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 498a3bb..5ac050a 100644 (file)
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -72,6 +72,7 @@
 #include <rte_errno.h>
 #include <rte_interrupts.h>
 #include <rte_log.h>
+#include <rte_bus.h>
 #include <rte_pci.h>
 #include <rte_per_lcore.h>
 #include <rte_memory.h>
@@ -88,6 +89,8 @@ struct pci_driver_list pci_driver_list =
 struct pci_device_list pci_device_list =
        TAILQ_HEAD_INITIALIZER(pci_device_list);
 
+extern struct rte_pci_bus rte_pci_bus;
+
 #define SYSFS_PCI_DEVICES "/sys/bus/pci/devices"
 
 const char *pci_get_sysfs_path(void)
@@ -489,3 +492,36 @@ rte_eal_pci_unregister(struct rte_pci_driver *driver)
        rte_eal_driver_unregister(&driver->driver);
        TAILQ_REMOVE(&pci_driver_list, driver, next);
 }
+
+/* Add a device to PCI bus */
+void
+rte_eal_pci_add_device(struct rte_pci_device *pci_dev)
+{
+       TAILQ_INSERT_TAIL(&rte_pci_bus.device_list, pci_dev, next);
+}
+
+/* Insert a device into a predefined position in PCI bus */
+void
+rte_eal_pci_insert_device(struct rte_pci_device *exist_pci_dev,
+                         struct rte_pci_device *new_pci_dev)
+{
+       TAILQ_INSERT_BEFORE(exist_pci_dev, new_pci_dev, next);
+}
+
+/* Remove a device from PCI bus */
+void
+rte_eal_pci_remove_device(struct rte_pci_device *pci_dev)
+{
+       TAILQ_REMOVE(&rte_pci_bus.device_list, pci_dev, next);
+}
+
+struct rte_pci_bus rte_pci_bus = {
+       .bus = {
+               .scan = rte_eal_pci_scan,
+               .probe = rte_eal_pci_probe,
+       },
+       .device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list),
+       .driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list),
+};
+
+RTE_REGISTER_BUS(PCI_BUS_NAME, rte_pci_bus.bus);