[dpdk-dev,v10,24/25] eal: introduce generalized RTE device
Commit Message
From: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
---
lib/librte_eal/common/eal_common_dev.c | 13 +++++++++++++
lib/librte_eal/common/include/rte_dev.h | 31 +++++++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
@@ -48,6 +48,9 @@
/** Global list of device drivers. */
static struct rte_driver_list dev_driver_list =
TAILQ_HEAD_INITIALIZER(dev_driver_list);
+/** Global list of device drivers. */
+static struct rte_device_list dev_device_list =
+ TAILQ_HEAD_INITIALIZER(dev_device_list);
/* register a driver */
void
@@ -63,6 +66,16 @@ rte_eal_driver_unregister(struct rte_driver *driver)
TAILQ_REMOVE(&dev_driver_list, driver, next);
}
+void rte_eal_device_insert(struct rte_device *dev)
+{
+ TAILQ_INSERT_TAIL(&dev_device_list, dev, next);
+}
+
+void rte_eal_device_remove(struct rte_device *dev)
+{
+ TAILQ_REMOVE(&dev_device_list, dev, next);
+}
+
int
rte_eal_dev_init(void)
{
@@ -111,6 +111,37 @@ struct rte_mem_resource {
/** Double linked list of device drivers. */
TAILQ_HEAD(rte_driver_list, rte_driver);
+/** Double linked list of devices. */
+TAILQ_HEAD(rte_device_list, rte_device);
+
+/* Forward declaration */
+struct rte_driver;
+
+/**
+ * A structure describing a generic device.
+ */
+struct rte_device {
+ TAILQ_ENTRY(rte_device) next; /**< Next device */
+ struct rte_driver *driver; /**< Associated driver */
+ int numa_node; /**< NUMA node connection */
+ struct rte_devargs *devargs; /**< Device user arguments */
+};
+
+/**
+ * Insert a device detected by a bus scanning.
+ *
+ * @param dev
+ * A pointer to a rte_device structure describing the detected device.
+ */
+void rte_eal_device_insert(struct rte_device *dev);
+
+/**
+ * Remove a device (e.g. when being unplugged).
+ *
+ * @param dev
+ * A pointer to a rte_device structure describing the device to be removed.
+ */
+void rte_eal_device_remove(struct rte_device *dev);
/**
* A structure describing a device driver.