a0147be547
Xilinx acquired Solarflare in 2019. Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com> Acked-by: James Fox <jamesfox@xilinx.com>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2019-2020 Xilinx, Inc.
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* Copyright(c) 2018-2019 Solarflare Communications Inc.
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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_TSO_H
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#define _SFC_TSO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Standard TSO header length */
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#define SFC_TSOH_STD_LEN 256
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/** The number of TSO option descriptors that precede the packet descriptors */
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#define SFC_EF10_TSO_OPT_DESCS_NUM 2
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/**
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* The number of DMA descriptors for TSO header that may or may not precede the
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* packet's payload descriptors
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*/
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#define SFC_EF10_TSO_HDR_DESCS_NUM 1
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static inline uint16_t
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sfc_tso_ip4_get_ipid(const uint8_t *pkt_hdrp, size_t ip_hdr_off)
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{
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const struct rte_ipv4_hdr *ip_hdrp;
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uint16_t ipid;
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ip_hdrp = (const struct rte_ipv4_hdr *)(pkt_hdrp + ip_hdr_off);
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rte_memcpy(&ipid, &ip_hdrp->packet_id, sizeof(ipid));
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return rte_be_to_cpu_16(ipid);
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}
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unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
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struct rte_mbuf **in_seg, size_t *in_off);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SFC_TSO_H */
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