X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fsfc_dp_tx.h;h=9cb2198e21b89a33848b3c56777e0f294dce468b;hb=ec6080a1ac56c48db7e675fde5322b4646b4b2ae;hp=2bb9a2e71e7ea535f920414012ad1080ce9d2145;hpb=5688520075b5cdbcb568994b2d1361aeab565986;p=dpdk.git diff --git a/drivers/net/sfc/sfc_dp_tx.h b/drivers/net/sfc/sfc_dp_tx.h index 2bb9a2e71e..9cb2198e21 100644 --- a/drivers/net/sfc/sfc_dp_tx.h +++ b/drivers/net/sfc/sfc_dp_tx.h @@ -1,38 +1,16 @@ -/*- - * BSD LICENSE +/* SPDX-License-Identifier: BSD-3-Clause * - * Copyright (c) 2016 Solarflare Communications Inc. + * 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_DP_TX_H #define _SFC_DP_TX_H -#include +#include #include "sfc_dp.h" @@ -49,6 +27,12 @@ struct sfc_dp_txq { struct sfc_dp_queue dpq; }; +/** Datapath transmit queue descriptor number limitations */ +struct sfc_dp_tx_hw_limits { + unsigned int txq_max_entries; + unsigned int txq_min_entries; +}; + /** * Datapath transmit queue creation information. * @@ -57,10 +41,12 @@ struct sfc_dp_txq { * readable. */ struct sfc_dp_tx_qcreate_info { + /** Maximum number of pushed Tx descriptors */ + unsigned int max_fill_level; /** Minimum number of unused Tx descriptors to do reap */ unsigned int free_thresh; - /** Transmit queue configuration flags */ - unsigned int flags; + /** Offloads enabled on the transmit queue */ + uint64_t offloads; /** Tx queue size */ unsigned int txq_entries; /** Maximum size of data in the DMA descriptor */ @@ -75,8 +61,39 @@ struct sfc_dp_tx_qcreate_info { unsigned int hw_index; /** Virtual address of the memory-mapped BAR to push Tx doorbell */ volatile void *mem_bar; + /** VI window size shift */ + unsigned int vi_window_shift; + /** + * Maximum number of bytes into the packet the TCP header can start for + * the hardware to apply TSO packet edits. + */ + uint16_t tso_tcp_header_offset_limit; }; +/** + * Get Tx datapath specific device info. + * + * @param dev_info Device info to be adjusted + */ +typedef void (sfc_dp_tx_get_dev_info_t)(struct rte_eth_dev_info *dev_info); + +/** + * Get size of transmit and event queue rings by the number of Tx + * descriptors. + * + * @param nb_tx_desc Number of Tx descriptors + * @param txq_entries Location for number of Tx ring entries + * @param evq_entries Location for number of event ring entries + * @param txq_max_fill_level Location for maximum Tx ring fill level + * + * @return 0 or positive errno. + */ +typedef int (sfc_dp_tx_qsize_up_rings_t)(uint16_t nb_tx_desc, + struct sfc_dp_tx_hw_limits *limits, + unsigned int *txq_entries, + unsigned int *evq_entries, + unsigned int *txq_max_fill_level); + /** * Allocate and initialize datapath transmit queue. * @@ -127,6 +144,12 @@ typedef bool (sfc_dp_tx_qtx_ev_t)(struct sfc_dp_txq *dp_txq, unsigned int id); */ typedef void (sfc_dp_tx_qreap_t)(struct sfc_dp_txq *dp_txq); +/** + * Check Tx descriptor status + */ +typedef int (sfc_dp_tx_qdesc_status_t)(struct sfc_dp_txq *dp_txq, + uint16_t offset); + /** Transmit datapath definition */ struct sfc_dp_tx { struct sfc_dp dp; @@ -135,12 +158,18 @@ struct sfc_dp_tx { #define SFC_DP_TX_FEAT_VLAN_INSERT 0x1 #define SFC_DP_TX_FEAT_TSO 0x2 #define SFC_DP_TX_FEAT_MULTI_SEG 0x4 +#define SFC_DP_TX_FEAT_MULTI_PROCESS 0x8 +#define SFC_DP_TX_FEAT_MULTI_POOL 0x10 +#define SFC_DP_TX_FEAT_REFCNT 0x20 + sfc_dp_tx_get_dev_info_t *get_dev_info; + sfc_dp_tx_qsize_up_rings_t *qsize_up_rings; sfc_dp_tx_qcreate_t *qcreate; sfc_dp_tx_qdestroy_t *qdestroy; sfc_dp_tx_qstart_t *qstart; sfc_dp_tx_qstop_t *qstop; sfc_dp_tx_qtx_ev_t *qtx_ev; sfc_dp_tx_qreap_t *qreap; + sfc_dp_tx_qdesc_status_t *qdesc_status; eth_tx_burst_t pkt_burst; }; @@ -160,6 +189,9 @@ sfc_dp_find_tx_by_caps(struct sfc_dp_list *head, unsigned int avail_caps) return (p == NULL) ? NULL : container_of(p, struct sfc_dp_tx, dp); } +/** Get Tx datapath ops by the datapath TxQ handle */ +const struct sfc_dp_tx *sfc_dp_tx_by_dp_txq(const struct sfc_dp_txq *dp_txq); + extern struct sfc_dp_tx sfc_efx_tx; extern struct sfc_dp_tx sfc_ef10_tx; extern struct sfc_dp_tx sfc_ef10_simple_tx;