1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4#ifndef _IXGBE_MODEL_H_
5#define _IXGBE_MODEL_H_
6
7#include "ixgbe.h"
8#include "ixgbe_type.h"
9
10struct ixgbe_mat_field {
11 unsigned int off;
12 int (*val)(struct ixgbe_fdir_filter *input,
13 union ixgbe_atr_input *mask,
14 u32 val, u32 m);
15 unsigned int type;
16};
17
18struct ixgbe_jump_table {
19 struct ixgbe_mat_field *mat;
20 struct ixgbe_fdir_filter *input;
21 union ixgbe_atr_input *mask;
22 u32 link_hdl;
23 unsigned long child_loc_map[32];
24};
25
26#define IXGBE_MAX_HW_ENTRIES 2045
27
28static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
29 union ixgbe_atr_input *mask,
30 u32 val, u32 m)
31{
32 input->filter.formatted.src_ip[0] = (__force __be32)val;
33 mask->formatted.src_ip[0] = (__force __be32)m;
34 return 0;
35}
36
37static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
38 union ixgbe_atr_input *mask,
39 u32 val, u32 m)
40{
41 input->filter.formatted.dst_ip[0] = (__force __be32)val;
42 mask->formatted.dst_ip[0] = (__force __be32)m;
43 return 0;
44}
45
46static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
47 { .off = 12, .val = ixgbe_mat_prgm_sip,
48 .type = IXGBE_ATR_FLOW_TYPE_IPV4},
49 { .off = 16, .val = ixgbe_mat_prgm_dip,
50 .type = IXGBE_ATR_FLOW_TYPE_IPV4},
51 { .val = NULL } /* terminal node */
52};
53
54static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
55 union ixgbe_atr_input *mask,
56 u32 val, u32 m)
57{
58 input->filter.formatted.src_port = (__force __be16)(val & 0xffff);
59 mask->formatted.src_port = (__force __be16)(m & 0xffff);
60 input->filter.formatted.dst_port = (__force __be16)(val >> 16);
61 mask->formatted.dst_port = (__force __be16)(m >> 16);
62
63 return 0;
64};
65
66static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
67 {.off = 0, .val = ixgbe_mat_prgm_ports,
68 .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
69 { .val = NULL } /* terminal node */
70};
71
72static struct ixgbe_mat_field ixgbe_udp_fields[] = {
73 {.off = 0, .val = ixgbe_mat_prgm_ports,
74 .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
75 { .val = NULL } /* terminal node */
76};
77
78struct ixgbe_nexthdr {
79 /* offset, shift, and mask of position to next header */
80 unsigned int o;
81 u32 s;
82 u32 m;
83 /* match criteria to make this jump*/
84 unsigned int off;
85 u32 val;
86 u32 mask;
87 /* location of jump to make */
88 struct ixgbe_mat_field *jump;
89};
90
91static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
92 { .o = 0, .s = 6, .m = 0xf,
93 .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
94 { .o = 0, .s = 6, .m = 0xf,
95 .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
96 { .jump = NULL } /* terminal node */
97};
98#endif /* _IXGBE_MODEL_H_ */
99

source code of linux/drivers/net/ethernet/intel/ixgbe/ixgbe_model.h