/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
* Copyright(c) 2018-2019 Solarflare Communications Inc.
*
* This software was jointly developed between OKTET Labs (under contract
#ifndef _SFC_TSO_H
#define _SFC_TSO_H
+#include <rte_udp.h>
+
#ifdef __cplusplus
extern "C" {
#endif
return rte_be_to_cpu_16(ipid);
}
+static inline void
+sfc_tso_outer_udp_fix_len(const struct rte_mbuf *m, uint8_t *tsoh)
+{
+ rte_be16_t len = rte_cpu_to_be_16(m->l2_len + m->l3_len + m->l4_len +
+ m->tso_segsz);
+
+ rte_memcpy(tsoh + m->outer_l2_len + m->outer_l3_len +
+ offsetof(struct rte_udp_hdr, dgram_len),
+ &len, sizeof(len));
+}
+
+static inline void
+sfc_tso_innermost_ip_fix_len(const struct rte_mbuf *m, uint8_t *tsoh,
+ size_t iph_ofst)
+{
+ size_t ip_payload_len = m->l4_len + m->tso_segsz;
+ size_t field_ofst;
+ rte_be16_t len;
+
+ if (m->ol_flags & RTE_MBUF_F_TX_IPV4) {
+ field_ofst = offsetof(struct rte_ipv4_hdr, total_length);
+ len = rte_cpu_to_be_16(m->l3_len + ip_payload_len);
+ } else {
+ field_ofst = offsetof(struct rte_ipv6_hdr, payload_len);
+ len = rte_cpu_to_be_16(ip_payload_len);
+ }
+
+ rte_memcpy(tsoh + iph_ofst + field_ofst, &len, sizeof(len));
+}
+
unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
struct rte_mbuf **in_seg, size_t *in_off);