1 /* SPDX-License-Identifier: BSD-3-Clause 2 * 3 * Copyright (c) 2018 Solarflare Communications Inc. 4 * All rights reserved. 5 * 6 * This software was jointly developed between OKTET Labs (under contract 7 * for Solarflare) and Solarflare Communications, Inc. 8 */ 9 10 /** Standard TSO header length */ 11 #define SFC_TSOH_STD_LEN 256 12 13 /** The number of TSO option descriptors that precede the packet descriptors */ 14 #define SFC_TSO_OPT_DESCS_NUM 2 15 16 /** 17 * The number of DMA descriptors for TSO header that may or may not precede the 18 * packet's payload descriptors 19 */ 20 #define SFC_TSO_HDR_DESCS_NUM 1 21 22 unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len, 23 struct rte_mbuf **in_seg, size_t *in_off); 24