blob: 8597c2868a26d31a782711562a834d9d93b624fd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright(c) 2019-2020 Xilinx, Inc.
* Copyright(c) 2018-2019 Solarflare Communications Inc.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
#ifndef _SFC_TSO_H
#define _SFC_TSO_H
#ifdef __cplusplus
extern "C" {
#endif
/** Standard TSO header length */
#define SFC_TSOH_STD_LEN 256
/** The number of TSO option descriptors that precede the packet descriptors */
#define SFC_EF10_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_EF10_TSO_HDR_DESCS_NUM 1
static inline uint16_t
sfc_tso_ip4_get_ipid(const uint8_t *pkt_hdrp, size_t ip_hdr_off)
{
const struct rte_ipv4_hdr *ip_hdrp;
uint16_t ipid;
ip_hdrp = (const struct rte_ipv4_hdr *)(pkt_hdrp + ip_hdr_off);
rte_memcpy(&ipid, &ip_hdrp->packet_id, sizeof(ipid));
return rte_be_to_cpu_16(ipid);
}
unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
struct rte_mbuf **in_seg, size_t *in_off);
#ifdef __cplusplus
}
#endif
#endif /* _SFC_TSO_H */
|
