From a000b58662f8821b4537f2f4ca1271b762a59286 Mon Sep 17 00:00:00 2001 From: Jan Viktorin Date: Tue, 20 Sep 2016 18:11:35 +0530 Subject: [PATCH] eal: introduce generalized device Signed-off-by: Jan Viktorin Signed-off-by: Shreyansh Jain Acked-by: David Marchand --- lib/librte_eal/common/eal_common_dev.c | 13 +++++++++++ lib/librte_eal/common/include/rte_dev.h | 31 +++++++++++++++++++++++++ 2 files changed, 44 insertions(+) diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c index afa33fa3fd..d1f0ad8a30 100644 --- a/lib/librte_eal/common/eal_common_dev.c +++ b/lib/librte_eal/common/eal_common_dev.c @@ -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) { diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h index 5c314bff84..d159991d6d 100644 --- a/lib/librte_eal/common/include/rte_dev.h +++ b/lib/librte_eal/common/include/rte_dev.h @@ -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. -- 2.20.1