X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fsfc_tx.h;h=146b805cad770da2255c58b2993a763d5d591d84;hb=e16adf08e54d5b1ff3b1116c372bbca279fced9d;hp=549abc48cf2648ba8fedd3b90e40da01b3de5fcd;hpb=a8ad8cf83f01afce616ffcc7a19bc44bc8609b96;p=dpdk.git diff --git a/drivers/net/sfc/sfc_tx.h b/drivers/net/sfc/sfc_tx.h index 549abc48cf..146b805cad 100644 --- a/drivers/net/sfc/sfc_tx.h +++ b/drivers/net/sfc/sfc_tx.h @@ -1,51 +1,146 @@ -/*- - * Copyright (c) 2016 Solarflare Communications Inc. +/* SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2016-2018 Solarflare Communications Inc. * All rights reserved. * * This software was jointly developed between OKTET Labs (under contract * for Solarflare) and Solarflare Communications, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SFC_TX_H #define _SFC_TX_H #include -#include +#include #include "efx.h" +#include "sfc_dp_tx.h" + #ifdef __cplusplus extern "C" { #endif struct sfc_adapter; +struct sfc_evq; + +/** + * Software Tx descriptor information associated with hardware Tx + * descriptor. + */ +struct sfc_efx_tx_sw_desc { + struct rte_mbuf *mbuf; + uint8_t *tsoh; /* Buffer to store TSO header */ +}; + +enum sfc_txq_state_bit { + SFC_TXQ_INITIALIZED_BIT = 0, +#define SFC_TXQ_INITIALIZED (1 << SFC_TXQ_INITIALIZED_BIT) + SFC_TXQ_STARTED_BIT, +#define SFC_TXQ_STARTED (1 << SFC_TXQ_STARTED_BIT) + SFC_TXQ_FLUSHING_BIT, +#define SFC_TXQ_FLUSHING (1 << SFC_TXQ_FLUSHING_BIT) + SFC_TXQ_FLUSHED_BIT, +#define SFC_TXQ_FLUSHED (1 << SFC_TXQ_FLUSHED_BIT) + SFC_TXQ_FLUSH_FAILED_BIT, +#define SFC_TXQ_FLUSH_FAILED (1 << SFC_TXQ_FLUSH_FAILED_BIT) +}; + +/** + * Transmit queue control information. Not used on datapath. + * Allocated on the socket specified on the queue setup. + */ +struct sfc_txq { + unsigned int state; + unsigned int hw_index; + struct sfc_evq *evq; + efsys_mem_t mem; + struct sfc_dp_txq *dp; + efx_txq_t *common; + unsigned int free_thresh; + uint64_t offloads; +}; + +static inline unsigned int +sfc_txq_sw_index_by_hw_index(unsigned int hw_index) +{ + return hw_index; +} + +static inline unsigned int +sfc_txq_sw_index(const struct sfc_txq *txq) +{ + return sfc_txq_sw_index_by_hw_index(txq->hw_index); +} + +struct sfc_txq *sfc_txq_by_dp_txq(const struct sfc_dp_txq *dp_txq); + +/** + * Transmit queue information used on libefx-based data path. + * Allocated on the socket specified on the queue setup. + */ +struct sfc_efx_txq { + struct sfc_evq *evq; + struct sfc_efx_tx_sw_desc *sw_ring; + unsigned int ptr_mask; + efx_desc_t *pend_desc; + efx_txq_t *common; + unsigned int added; + unsigned int pending; + unsigned int completed; + unsigned int max_fill_level; + unsigned int free_thresh; + uint16_t hw_vlan_tci; + uint16_t dma_desc_size_max; + + unsigned int hw_index; + unsigned int flags; +#define SFC_EFX_TXQ_FLAG_STARTED 0x1 +#define SFC_EFX_TXQ_FLAG_RUNNING 0x2 + + /* Datapath transmit queue anchor */ + struct sfc_dp_txq dp; +}; + +static inline struct sfc_efx_txq * +sfc_efx_txq_by_dp_txq(struct sfc_dp_txq *dp_txq) +{ + return container_of(dp_txq, struct sfc_efx_txq, dp); +} struct sfc_txq_info { + unsigned int entries; + struct sfc_txq *txq; + boolean_t deferred_start; + boolean_t deferred_started; }; -int sfc_tx_init(struct sfc_adapter *sa); -void sfc_tx_fini(struct sfc_adapter *sa); +int sfc_tx_configure(struct sfc_adapter *sa); +void sfc_tx_close(struct sfc_adapter *sa); + +int sfc_tx_qinit(struct sfc_adapter *sa, unsigned int sw_index, + uint16_t nb_tx_desc, unsigned int socket_id, + const struct rte_eth_txconf *tx_conf); +void sfc_tx_qfini(struct sfc_adapter *sa, unsigned int sw_index); + +void sfc_tx_qflush_done(struct sfc_txq *txq); +int sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index); +void sfc_tx_qstop(struct sfc_adapter *sa, unsigned int sw_index); +int sfc_tx_start(struct sfc_adapter *sa); +void sfc_tx_stop(struct sfc_adapter *sa); + +uint64_t sfc_tx_get_dev_offload_caps(struct sfc_adapter *sa); +uint64_t sfc_tx_get_queue_offload_caps(struct sfc_adapter *sa); + +/* From 'sfc_tso.c' */ +int sfc_efx_tso_alloc_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring, + unsigned int txq_entries, + unsigned int socket_id); +void sfc_efx_tso_free_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring, + unsigned int txq_entries); +int sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx, + struct rte_mbuf **in_seg, size_t *in_off, efx_desc_t **pend, + unsigned int *pkt_descs, size_t *pkt_len); #ifdef __cplusplus }