X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eventdev%2Frte_eventdev.h;h=f1949ff7d83fd0046d8b9d3868df3782dca4ce42;hb=a49b617b86fede7ffd311fd03099204998e35529;hp=1dbc8728d5c289da99de6a473c3906be064549de;hpb=06ac00686e29d0ceda338645e04d75f8c443f9bb;p=dpdk.git diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h index 1dbc8728d5..f1949ff7d8 100644 --- a/lib/librte_eventdev/rte_eventdev.h +++ b/lib/librte_eventdev/rte_eventdev.h @@ -218,10 +218,10 @@ * (each worker thread schedules events to its own port) or centralized * (a dedicated thread schedules to all ports). Distributed software schedulers * perform the scheduling in rte_event_dequeue_burst(), whereas centralized - * scheduler logic is located in rte_event_schedule(). + * scheduler logic need a dedicated service core for scheduling. * The RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED capability flag is not set * indicates the device is centralized and thus needs a dedicated scheduling - * thread that repeatedly calls rte_event_schedule(). + * thread that repeatedly calls software specific scheduling function. * * An event driven worker thread has following typical workflow on fastpath: * \code{.c} @@ -263,16 +263,16 @@ struct rte_mbuf; /* we just use mbuf pointers; no need to include rte_mbuf.h */ * In distributed scheduling mode, event scheduling happens in HW or * rte_event_dequeue_burst() or the combination of these two. * If the flag is not set then eventdev is centralized and thus needs a - * dedicated scheduling thread that repeatedly calls rte_event_schedule(). + * dedicated service core that acts as a scheduling thread . * - * @see rte_event_schedule(), rte_event_dequeue_burst() + * @see rte_event_dequeue_burst() */ #define RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES (1ULL << 3) /**< Event device is capable of enqueuing events of any type to any queue. * If this capability is not set, the queue only supports events of the - * *RTE_EVENT_QUEUE_CFG_* type that it was created with. + * *RTE_SCHED_TYPE_* type that it was created with. * - * @see RTE_EVENT_QUEUE_CFG_* values + * @see RTE_SCHED_TYPE_* values */ #define RTE_EVENT_DEV_CAP_BURST_MODE (1ULL << 4) /**< Event device is capable of operating in burst mode for enqueue(forward, @@ -515,39 +515,13 @@ rte_event_dev_configure(uint8_t dev_id, /* Event queue specific APIs */ /* Event queue configuration bitmap flags */ -#define RTE_EVENT_QUEUE_CFG_TYPE_MASK (3ULL << 0) -/**< Mask for event queue schedule type configuration request */ -#define RTE_EVENT_QUEUE_CFG_ALL_TYPES (0ULL << 0) +#define RTE_EVENT_QUEUE_CFG_ALL_TYPES (1ULL << 0) /**< Allow ATOMIC,ORDERED,PARALLEL schedule type enqueue * * @see RTE_SCHED_TYPE_ORDERED, RTE_SCHED_TYPE_ATOMIC, RTE_SCHED_TYPE_PARALLEL * @see rte_event_enqueue_burst() */ -#define RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY (1ULL << 0) -/**< Allow only ATOMIC schedule type enqueue - * - * The rte_event_enqueue_burst() result is undefined if the queue configured - * with ATOMIC only and sched_type != RTE_SCHED_TYPE_ATOMIC - * - * @see RTE_SCHED_TYPE_ATOMIC, rte_event_enqueue_burst() - */ -#define RTE_EVENT_QUEUE_CFG_ORDERED_ONLY (2ULL << 0) -/**< Allow only ORDERED schedule type enqueue - * - * The rte_event_enqueue_burst() result is undefined if the queue configured - * with ORDERED only and sched_type != RTE_SCHED_TYPE_ORDERED - * - * @see RTE_SCHED_TYPE_ORDERED, rte_event_enqueue_burst() - */ -#define RTE_EVENT_QUEUE_CFG_PARALLEL_ONLY (3ULL << 0) -/**< Allow only PARALLEL schedule type enqueue - * - * The rte_event_enqueue_burst() result is undefined if the queue configured - * with PARALLEL only and sched_type != RTE_SCHED_TYPE_PARALLEL - * - * @see RTE_SCHED_TYPE_PARALLEL, rte_event_enqueue_burst() - */ -#define RTE_EVENT_QUEUE_CFG_SINGLE_LINK (1ULL << 2) +#define RTE_EVENT_QUEUE_CFG_SINGLE_LINK (1ULL << 1) /**< This event queue links only to a single event port. * * @see rte_event_port_setup(), rte_event_port_link() @@ -558,8 +532,8 @@ struct rte_event_queue_conf { uint32_t nb_atomic_flows; /**< The maximum number of active flows this queue can track at any * given time. If the queue is configured for atomic scheduling (by - * applying the RTE_EVENT_QUEUE_CFG_ALL_TYPES or - * RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY flags to event_queue_cfg), then the + * applying the RTE_EVENT_QUEUE_CFG_ALL_TYPES flag to event_queue_cfg + * or RTE_SCHED_TYPE_ATOMIC flag to schedule_type), then the * value must be in the range of [1, nb_event_queue_flows], which was * previously provided in rte_event_dev_configure(). */ @@ -572,12 +546,18 @@ struct rte_event_queue_conf { * event will be returned from dequeue until one or more entries are * freed up/released. * If the queue is configured for ordered scheduling (by applying the - * RTE_EVENT_QUEUE_CFG_ALL_TYPES or RTE_EVENT_QUEUE_CFG_ORDERED_ONLY - * flags to event_queue_cfg), then the value must be in the range of - * [1, nb_event_queue_flows], which was previously supplied to - * rte_event_dev_configure(). + * RTE_EVENT_QUEUE_CFG_ALL_TYPES flag to event_queue_cfg or + * RTE_SCHED_TYPE_ORDERED flag to schedule_type), then the value must + * be in the range of [1, nb_event_queue_flows], which was + * previously supplied to rte_event_dev_configure(). + */ + uint32_t event_queue_cfg; + /**< Queue cfg flags(EVENT_QUEUE_CFG_) */ + uint8_t schedule_type; + /**< Queue schedule type(RTE_SCHED_TYPE_*). + * Valid when RTE_EVENT_QUEUE_CFG_ALL_TYPES bit is not set in + * event_queue_cfg. */ - uint32_t event_queue_cfg; /**< Queue cfg flags(EVENT_QUEUE_CFG_) */ uint8_t priority; /**< Priority for this event queue relative to other event queues. * The requested priority should in the range of @@ -652,6 +632,10 @@ rte_event_queue_setup(uint8_t dev_id, uint8_t queue_id, * The cfg flags for the queue. */ #define RTE_EVENT_QUEUE_ATTR_EVENT_QUEUE_CFG 3 +/** + * The schedule type of the queue. + */ +#define RTE_EVENT_QUEUE_ATTR_SCHEDULE_TYPE 4 /** * Get an attribute from a queue. @@ -665,6 +649,9 @@ rte_event_queue_setup(uint8_t dev_id, uint8_t queue_id, * @retval 0 Successfully returned value * -EINVAL invalid device, queue or attr_id provided, or attr_value * was NULL + * -EOVERFLOW returned when attr_id is set to + * RTE_EVENT_QUEUE_ATTR_SCHEDULE_TYPE and event_queue_cfg is set to + * RTE_EVENT_QUEUE_CFG_ALL_TYPES */ int rte_event_queue_attr_get(uint8_t dev_id, uint8_t queue_id, uint32_t attr_id, @@ -1065,9 +1052,6 @@ struct rte_eventdev_driver; struct rte_eventdev_ops; struct rte_eventdev; -typedef void (*event_schedule_t)(struct rte_eventdev *dev); -/**< @internal Schedule one or more events in the event dev. */ - typedef uint16_t (*event_enqueue_t)(void *port, const struct rte_event *ev); /**< @internal Enqueue event on port of a device */ @@ -1116,6 +1100,10 @@ struct rte_eventdev_data { /**< Event device capabilities(RTE_EVENT_DEV_CAP_)*/ struct rte_event_dev_config dev_conf; /**< Configuration applied to device. */ + uint8_t service_inited; + /* Service initialization state */ + uint32_t service_id; + /* Service ID*/ RTE_STD_C11 uint8_t dev_started : 1; @@ -1127,8 +1115,6 @@ struct rte_eventdev_data { /** @internal The data structure associated with each event device. */ struct rte_eventdev { - event_schedule_t schedule; - /**< Pointer to PMD schedule function. */ event_enqueue_t enqueue; /**< Pointer to PMD enqueue function. */ event_enqueue_burst_t enqueue_burst; @@ -1157,24 +1143,6 @@ struct rte_eventdev { extern struct rte_eventdev *rte_eventdevs; /** @internal The pool of rte_eventdev structures. */ - -/** - * Schedule one or more events in the event dev. - * - * An event dev implementation may define this is a NOOP, for instance if - * the event dev performs its scheduling in hardware. - * - * @param dev_id - * The identifier of the device. - */ -static inline void -rte_event_schedule(uint8_t dev_id) -{ - struct rte_eventdev *dev = &rte_eventdevs[dev_id]; - if (*dev->schedule) - (*dev->schedule)(dev); -} - static __rte_always_inline uint16_t __rte_event_enqueue_burst(uint8_t dev_id, uint8_t port_id, const struct rte_event ev[], uint16_t nb_events, @@ -1618,6 +1586,24 @@ int rte_event_port_links_get(uint8_t dev_id, uint8_t port_id, uint8_t queues[], uint8_t priorities[]); +/** + * Retrieve the service ID of the event dev. If the adapter doesn't use + * a rte_service function, this function returns -ESRCH. + * + * @param dev_id + * The identifier of the device. + * + * @param [out] service_id + * A pointer to a uint32_t, to be filled in with the service id. + * + * @return + * - 0: Success + * - <0: Error code on failure, if the event dev doesn't use a rte_service + * function, this function returns -ESRCH. + */ +int +rte_event_dev_service_id_get(uint8_t dev_id, uint32_t *service_id); + /** * Dump internal information about *dev_id* to the FILE* provided in *f*. *