f-stack/dpdk/drivers/net/sfc/sfc_tso.h

24 lines
709 B
C

/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2018 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
/** Standard TSO header length */
#define SFC_TSOH_STD_LEN 256
/** The number of TSO option descriptors that precede the packet descriptors */
#define SFC_TSO_OPT_DESCS_NUM 2
/**
* The number of DMA descriptors for TSO header that may or may not precede the
* packet's payload descriptors
*/
#define SFC_TSO_HDR_DESCS_NUM 1
unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
struct rte_mbuf **in_seg, size_t *in_off);