/* SPDX-License-Identifier: BSD-3-Clause * * Copyright(c) 2019-2020 Xilinx, Inc. * Copyright(c) 2016-2019 Solarflare Communications Inc. * * This software was jointly developed between OKTET Labs (under contract * for Solarflare) and Solarflare Communications, Inc. */ #ifndef _SFC_EV_H_ #define _SFC_EV_H_ #include #include "efx.h" #include "sfc.h" #ifdef __cplusplus extern "C" { #endif struct sfc_adapter; struct sfc_dp_rxq; struct sfc_dp_txq; enum sfc_evq_state { SFC_EVQ_UNINITIALIZED = 0, SFC_EVQ_INITIALIZED, SFC_EVQ_STARTING, SFC_EVQ_STARTED, SFC_EVQ_NSTATES }; enum sfc_evq_type { SFC_EVQ_TYPE_MGMT = 0, SFC_EVQ_TYPE_RX, SFC_EVQ_TYPE_TX, SFC_EVQ_NTYPES }; struct sfc_evq { /* Used on datapath */ efx_evq_t *common; const efx_ev_callbacks_t *callbacks; unsigned int read_ptr; unsigned int read_ptr_primed; boolean_t exception; efsys_mem_t mem; struct sfc_dp_rxq *dp_rxq; struct sfc_dp_txq *dp_txq; /* Not used on datapath */ struct sfc_adapter *sa; unsigned int evq_index; enum sfc_evq_state init_state; enum sfc_evq_type type; unsigned int entries; }; /* * Functions below define event queue to transmit/receive queue and vice * versa mapping. * Own event queue is allocated for management, each Rx and each Tx queue. * Zero event queue is used for management events. * Rx event queues from 1 to RxQ number follow management event queue. * Tx event queues follow Rx event queues. */ static inline unsigned int sfc_evq_index_by_rxq_sw_index(__rte_unused struct sfc_adapter *sa, unsigned int rxq_sw_index) { return 1 + rxq_sw_index; } static inline unsigned int sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index) { return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index; } int sfc_ev_attach(struct sfc_adapter *sa); void sfc_ev_detach(struct sfc_adapter *sa); int sfc_ev_start(struct sfc_adapter *sa); void sfc_ev_stop(struct sfc_adapter *sa); int sfc_ev_qinit(struct sfc_adapter *sa, enum sfc_evq_type type, unsigned int type_index, unsigned int entries, int socket_id, struct sfc_evq **evqp); void sfc_ev_qfini(struct sfc_evq *evq); int sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index); void sfc_ev_qstop(struct sfc_evq *evq); int sfc_ev_qprime(struct sfc_evq *evq); void sfc_ev_qpoll(struct sfc_evq *evq); void sfc_ev_mgmt_qpoll(struct sfc_adapter *sa); #ifdef __cplusplus } #endif #endif /* _SFC_EV_H_ */