2018-01-08 13:35:35 +00:00
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/* SPDX-License-Identifier: BSD-3-Clause
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2017-03-16 12:41:08 +00:00
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*
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2020-03-30 10:27:26 +00:00
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* Copyright(c) 2019-2020 Xilinx, Inc.
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* Copyright(c) 2016-2019 Solarflare Communications Inc.
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2016-11-29 16:19:09 +00:00
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*
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* This software was jointly developed between OKTET Labs (under contract
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* for Solarflare) and Solarflare Communications, Inc.
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*/
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#ifndef _SFC_EV_H_
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#define _SFC_EV_H_
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2018-01-22 00:16:22 +00:00
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#include <rte_ethdev_driver.h>
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2017-03-20 10:15:14 +00:00
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2016-11-29 16:19:09 +00:00
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#include "efx.h"
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2017-03-20 10:15:14 +00:00
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#include "sfc.h"
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2016-11-29 16:19:09 +00:00
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct sfc_adapter;
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2017-03-20 10:15:10 +00:00
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struct sfc_dp_rxq;
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2017-03-20 10:15:14 +00:00
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struct sfc_dp_txq;
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2016-11-29 16:19:09 +00:00
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enum sfc_evq_state {
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SFC_EVQ_UNINITIALIZED = 0,
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SFC_EVQ_INITIALIZED,
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SFC_EVQ_STARTING,
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SFC_EVQ_STARTED,
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SFC_EVQ_NSTATES
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};
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2017-03-31 10:22:12 +00:00
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enum sfc_evq_type {
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SFC_EVQ_TYPE_MGMT = 0,
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SFC_EVQ_TYPE_RX,
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SFC_EVQ_TYPE_TX,
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SFC_EVQ_NTYPES
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};
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2016-11-29 16:19:09 +00:00
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struct sfc_evq {
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/* Used on datapath */
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2017-03-20 10:15:07 +00:00
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efx_evq_t *common;
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const efx_ev_callbacks_t *callbacks;
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unsigned int read_ptr;
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2019-06-06 17:33:24 +00:00
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unsigned int read_ptr_primed;
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2017-03-20 10:15:07 +00:00
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boolean_t exception;
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efsys_mem_t mem;
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2017-03-20 10:15:10 +00:00
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struct sfc_dp_rxq *dp_rxq;
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2017-03-20 10:15:14 +00:00
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struct sfc_dp_txq *dp_txq;
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2016-11-29 16:19:09 +00:00
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/* Not used on datapath */
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2017-03-20 10:15:07 +00:00
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struct sfc_adapter *sa;
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unsigned int evq_index;
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enum sfc_evq_state init_state;
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2017-03-31 10:22:12 +00:00
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enum sfc_evq_type type;
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2017-03-31 10:22:14 +00:00
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unsigned int entries;
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2016-11-29 16:19:09 +00:00
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};
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/*
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* Functions below define event queue to transmit/receive queue and vice
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* versa mapping.
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2017-03-31 10:22:16 +00:00
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* Own event queue is allocated for management, each Rx and each Tx queue.
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* Zero event queue is used for management events.
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* Rx event queues from 1 to RxQ number follow management event queue.
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* Tx event queues follow Rx event queues.
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2016-11-29 16:19:09 +00:00
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*/
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static inline unsigned int
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sfc_evq_index_by_rxq_sw_index(__rte_unused struct sfc_adapter *sa,
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unsigned int rxq_sw_index)
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{
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return 1 + rxq_sw_index;
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}
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static inline unsigned int
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sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index)
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{
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return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index;
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}
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2017-03-31 10:22:17 +00:00
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int sfc_ev_attach(struct sfc_adapter *sa);
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void sfc_ev_detach(struct sfc_adapter *sa);
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2016-11-29 16:19:09 +00:00
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int sfc_ev_start(struct sfc_adapter *sa);
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void sfc_ev_stop(struct sfc_adapter *sa);
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2017-03-31 10:22:16 +00:00
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int sfc_ev_qinit(struct sfc_adapter *sa,
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2017-03-31 10:22:12 +00:00
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enum sfc_evq_type type, unsigned int type_index,
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2017-03-31 10:22:16 +00:00
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unsigned int entries, int socket_id, struct sfc_evq **evqp);
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void sfc_ev_qfini(struct sfc_evq *evq);
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int sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index);
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void sfc_ev_qstop(struct sfc_evq *evq);
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2016-11-29 16:19:09 +00:00
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int sfc_ev_qprime(struct sfc_evq *evq);
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void sfc_ev_qpoll(struct sfc_evq *evq);
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2016-11-29 16:19:11 +00:00
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void sfc_ev_mgmt_qpoll(struct sfc_adapter *sa);
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2016-11-29 16:19:09 +00:00
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SFC_EV_H_ */
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