1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright (c) 2016-2018 Solarflare Communications Inc.
6 * This software was jointly developed between OKTET Labs (under contract
7 * for Solarflare) and Solarflare Communications, Inc.
13 #include <rte_ethdev_driver.h>
28 SFC_EVQ_UNINITIALIZED = 0,
37 SFC_EVQ_TYPE_MGMT = 0,
45 /* Used on datapath */
47 const efx_ev_callbacks_t *callbacks;
48 unsigned int read_ptr;
51 struct sfc_dp_rxq *dp_rxq;
52 struct sfc_dp_txq *dp_txq;
54 /* Not used on datapath */
55 struct sfc_adapter *sa;
56 unsigned int evq_index;
57 enum sfc_evq_state init_state;
58 enum sfc_evq_type type;
63 * Functions below define event queue to transmit/receive queue and vice
65 * Own event queue is allocated for management, each Rx and each Tx queue.
66 * Zero event queue is used for management events.
67 * Rx event queues from 1 to RxQ number follow management event queue.
68 * Tx event queues follow Rx event queues.
71 static inline unsigned int
72 sfc_evq_index_by_rxq_sw_index(__rte_unused struct sfc_adapter *sa,
73 unsigned int rxq_sw_index)
75 return 1 + rxq_sw_index;
78 static inline unsigned int
79 sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index)
81 return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index;
84 int sfc_ev_attach(struct sfc_adapter *sa);
85 void sfc_ev_detach(struct sfc_adapter *sa);
86 int sfc_ev_start(struct sfc_adapter *sa);
87 void sfc_ev_stop(struct sfc_adapter *sa);
89 int sfc_ev_qinit(struct sfc_adapter *sa,
90 enum sfc_evq_type type, unsigned int type_index,
91 unsigned int entries, int socket_id, struct sfc_evq **evqp);
92 void sfc_ev_qfini(struct sfc_evq *evq);
93 int sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index);
94 void sfc_ev_qstop(struct sfc_evq *evq);
96 int sfc_ev_qprime(struct sfc_evq *evq);
97 void sfc_ev_qpoll(struct sfc_evq *evq);
99 void sfc_ev_mgmt_qpoll(struct sfc_adapter *sa);
104 #endif /* _SFC_EV_H_ */