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34 #ifndef _RTE_INTERRUPTS_H_
35 #error "don't include this file directly, please include generic <rte_interrupts.h>"
38 #ifndef _RTE_BSDAPP_INTERRUPTS_H_
39 #define _RTE_BSDAPP_INTERRUPTS_H_
41 enum rte_intr_handle_type {
42 RTE_INTR_HANDLE_UNKNOWN = 0,
43 RTE_INTR_HANDLE_UIO, /**< uio device handle */
44 RTE_INTR_HANDLE_ALARM, /**< alarm handle */
48 /** Handle for interrupts. */
49 struct rte_intr_handle {
50 int fd; /**< file descriptor */
51 int uio_cfg_fd; /**< UIO config file descriptor */
52 enum rte_intr_handle_type type; /**< handle type */
53 int max_intr; /**< max interrupt requested */
54 uint32_t nb_efd; /**< number of available efds */
55 int *intr_vec; /**< intr vector number array */
60 * Pointer to the interrupt handle.
62 * Epoll instance fd which the intr vector associated to.
64 * The operation be performed for the vector.
65 * Operation type of {ADD, DEL}.
67 * RX intr vector number added to the epoll instance wait list.
72 * - On failure, a negative value.
75 rte_intr_rx_ctl(struct rte_intr_handle *intr_handle,
76 int epfd, int op, unsigned int vec, void *data);
79 * It enables the fastpath event fds if it's necessary.
80 * It creates event fds when multi-vectors allowed,
81 * otherwise it multiplexes the single event fds.
84 * Pointer to the interrupt handle.
86 * Number of interrupt vector trying to enable.
89 * - On failure, a negative value.
92 rte_intr_efd_enable(struct rte_intr_handle *intr_handle, uint32_t nb_efd);
95 * It disable the fastpath event fds.
96 * It deletes registered eventfds and closes the open fds.
99 * Pointer to the interrupt handle.
102 rte_intr_efd_disable(struct rte_intr_handle *intr_handle);
105 * The fastpath interrupt is enabled or not.
108 * Pointer to the interrupt handle.
110 int rte_intr_dp_is_en(struct rte_intr_handle *intr_handle);
113 * The interrupt handle instance allows other cause or not.
114 * Other cause stands for none fastpath interrupt.
117 * Pointer to the interrupt handle.
119 int rte_intr_allow_others(struct rte_intr_handle *intr_handle);
121 #endif /* _RTE_BSDAPP_INTERRUPTS_H_ */