tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*******************************************************************************
2 *
3 * Intel 10 Gigabit PCI Express Linux drive
4 * Copyright(c) 2016 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27#ifndef _IXGBE_MODEL_H_
28#define _IXGBE_MODEL_H_
29
30#include "ixgbe.h"
31#include "ixgbe_type.h"
32
33struct ixgbe_mat_field {
34 unsigned int off;
35 int (*val)(struct ixgbe_fdir_filter *input,
36 union ixgbe_atr_input *mask,
37 u32 val, u32 m);
38 unsigned int type;
39};
40
41struct ixgbe_jump_table {
42 struct ixgbe_mat_field *mat;
43 struct ixgbe_fdir_filter *input;
44 union ixgbe_atr_input *mask;
45 u32 link_hdl;
46 unsigned long child_loc_map[32];
47};
48
49#define IXGBE_MAX_HW_ENTRIES 2045
50
51static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
52 union ixgbe_atr_input *mask,
53 u32 val, u32 m)
54{
55 input->filter.formatted.src_ip[0] = val;
56 mask->formatted.src_ip[0] = m;
57 return 0;
58}
59
60static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
61 union ixgbe_atr_input *mask,
62 u32 val, u32 m)
63{
64 input->filter.formatted.dst_ip[0] = val;
65 mask->formatted.dst_ip[0] = m;
66 return 0;
67}
68
69static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
70 { .off = 12, .val = ixgbe_mat_prgm_sip,
71 .type = IXGBE_ATR_FLOW_TYPE_IPV4},
72 { .off = 16, .val = ixgbe_mat_prgm_dip,
73 .type = IXGBE_ATR_FLOW_TYPE_IPV4},
74 { .val = NULL } /* terminal node */
75};
76
77static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
78 union ixgbe_atr_input *mask,
79 u32 val, u32 m)
80{
81 input->filter.formatted.src_port = val & 0xffff;
82 mask->formatted.src_port = m & 0xffff;
83 input->filter.formatted.dst_port = val >> 16;
84 mask->formatted.dst_port = m >> 16;
85
86 return 0;
87};
88
89static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
90 {.off = 0, .val = ixgbe_mat_prgm_ports,
91 .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
92 { .val = NULL } /* terminal node */
93};
94
95static struct ixgbe_mat_field ixgbe_udp_fields[] = {
96 {.off = 0, .val = ixgbe_mat_prgm_ports,
97 .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
98 { .val = NULL } /* terminal node */
99};
100
101struct ixgbe_nexthdr {
102 /* offset, shift, and mask of position to next header */
103 unsigned int o;
104 u32 s;
105 u32 m;
106 /* match criteria to make this jump*/
107 unsigned int off;
108 u32 val;
109 u32 mask;
110 /* location of jump to make */
111 struct ixgbe_mat_field *jump;
112};
113
114static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
115 { .o = 0, .s = 6, .m = 0xf,
116 .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
117 { .o = 0, .s = 6, .m = 0xf,
118 .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
119 { .jump = NULL } /* terminal node */
120};
121#endif /* _IXGBE_MODEL_H_ */