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40 * DPDK device bus interface
42 * This file exposes API and interfaces for bus abstraction
43 * over the devices and drivers in EAL.
51 #include <sys/queue.h>
56 /** Double linked list of buses */
57 TAILQ_HEAD(rte_bus_list, rte_bus);
60 * A structure describing a generic bus.
63 TAILQ_ENTRY(rte_bus) next; /**< Next bus object in linked list */
64 const char *name; /**< Name of the bus */
68 * Register a Bus handler.
71 * A pointer to a rte_bus structure describing the bus
74 void rte_bus_register(struct rte_bus *bus);
77 * Unregister a Bus handler.
80 * A pointer to a rte_bus structure describing the bus
83 void rte_bus_unregister(struct rte_bus *bus);
86 * Dump information of all the buses registered with EAL.
89 * A valid and open output stream handle
92 * 0 in case of success
93 * !0 in case there is error in opening the output stream
95 void rte_bus_dump(FILE *f);
98 * Helper for Bus registration.
99 * The constructor has higher priority than PMD constructors.
101 #define RTE_REGISTER_BUS(nm, bus) \
102 static void __attribute__((constructor(101), used)) businitfn_ ##nm(void) \
104 (bus).name = RTE_STR(nm);\
105 rte_bus_register(&bus); \
112 #endif /* _RTE_BUS_H */