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 
10 struct 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 
18 struct 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 
28 static 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 
37 static 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 
46 static 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 
54 static 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 
66 static 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 
72 static 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 
78 struct 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 
91 static 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