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.h>
23 /* Number of entries in the management event queue */
24 #define SFC_MGMT_EVQ_ENTRIES (EFX_EVQ_MINNEVS)
31 SFC_EVQ_UNINITIALIZED = 0,
40 SFC_EVQ_TYPE_MGMT = 0,
48 /* Used on datapath */
50 const efx_ev_callbacks_t *callbacks;
51 unsigned int read_ptr;
54 struct sfc_dp_rxq *dp_rxq;
55 struct sfc_dp_txq *dp_txq;
57 /* Not used on datapath */
58 struct sfc_adapter *sa;
59 unsigned int evq_index;
60 enum sfc_evq_state init_state;
61 enum sfc_evq_type type;
66 * Functions below define event queue to transmit/receive queue and vice
68 * Own event queue is allocated for management, each Rx and each Tx queue.
69 * Zero event queue is used for management events.
70 * Rx event queues from 1 to RxQ number follow management event queue.
71 * Tx event queues follow Rx event queues.
74 static inline unsigned int
75 sfc_evq_index_by_rxq_sw_index(__rte_unused struct sfc_adapter *sa,
76 unsigned int rxq_sw_index)
78 return 1 + rxq_sw_index;
81 static inline unsigned int
82 sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index)
84 return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index;
87 int sfc_ev_attach(struct sfc_adapter *sa);
88 void sfc_ev_detach(struct sfc_adapter *sa);
89 int sfc_ev_start(struct sfc_adapter *sa);
90 void sfc_ev_stop(struct sfc_adapter *sa);
92 int sfc_ev_qinit(struct sfc_adapter *sa,
93 enum sfc_evq_type type, unsigned int type_index,
94 unsigned int entries, int socket_id, struct sfc_evq **evqp);
95 void sfc_ev_qfini(struct sfc_evq *evq);
96 int sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index);
97 void sfc_ev_qstop(struct sfc_evq *evq);
99 int sfc_ev_qprime(struct sfc_evq *evq);
100 void sfc_ev_qpoll(struct sfc_evq *evq);
102 void sfc_ev_mgmt_qpoll(struct sfc_adapter *sa);
107 #endif /* _SFC_EV_H_ */