bd063651d5
These headers are used but not included explicitly, including them. "arpa/inet.h" is included for 'htons' and friends. "netinet/in.h" is included for 'IPPROTO_IP'. Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru> Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com> Acked-by: Rasesh Mody <rmody@marvell.com>
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2019-2021 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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#include <rte_udp.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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static inline void
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sfc_tso_outer_udp_fix_len(const struct rte_mbuf *m, uint8_t *tsoh)
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{
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rte_be16_t len = rte_cpu_to_be_16(m->l2_len + m->l3_len + m->l4_len +
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m->tso_segsz);
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rte_memcpy(tsoh + m->outer_l2_len + m->outer_l3_len +
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offsetof(struct rte_udp_hdr, dgram_len),
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&len, sizeof(len));
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}
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static inline void
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sfc_tso_innermost_ip_fix_len(const struct rte_mbuf *m, uint8_t *tsoh,
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size_t iph_ofst)
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{
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size_t ip_payload_len = m->l4_len + m->tso_segsz;
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size_t field_ofst;
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rte_be16_t len;
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if (m->ol_flags & PKT_TX_IPV4) {
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field_ofst = offsetof(struct rte_ipv4_hdr, total_length);
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len = rte_cpu_to_be_16(m->l3_len + ip_payload_len);
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} else {
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field_ofst = offsetof(struct rte_ipv6_hdr, payload_len);
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len = rte_cpu_to_be_16(ip_payload_len);
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}
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rte_memcpy(tsoh + iph_ofst + field_ofst, &len, sizeof(len));
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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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