1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2021 Intel Corporation
3 */
4
5 #include "ice_common.h"
6 #include "ice_parser_util.h"
7
8 #define ICE_PROTO_GRP_TABLE_SIZE 192
9
_proto_off_dump(struct ice_hw * hw,struct ice_proto_off * po,int idx)10 static void _proto_off_dump(struct ice_hw *hw, struct ice_proto_off *po,
11 int idx)
12 {
13 ice_info(hw, "proto %d\n", idx);
14 ice_info(hw, "\tpolarity = %d\n", po->polarity);
15 ice_info(hw, "\tproto_id = %d\n", po->proto_id);
16 ice_info(hw, "\toffset = %d\n", po->offset);
17 }
18
19 /**
20 * ice_proto_grp_dump - dump a proto group item info
21 * @ice_hw: pointer to the hardware structure
22 * @item: proto group item to dump
23 */
ice_proto_grp_dump(struct ice_hw * hw,struct ice_proto_grp_item * item)24 void ice_proto_grp_dump(struct ice_hw *hw, struct ice_proto_grp_item *item)
25 {
26 int i;
27
28 ice_info(hw, "index = %d\n", item->idx);
29
30 for (i = 0; i < ICE_PROTO_COUNT_PER_GRP; i++)
31 _proto_off_dump(hw, &item->po[i], i);
32 }
33
34 /** The function parses a 22 bits Protocol entry with below format:
35 * BIT 0: Polarity of Protocol Offset (po->polarity)
36 * BIT 1-8: Protocol ID (po->proto_id)
37 * BIT 9-11: reserved
38 * BIT 12-21: Protocol Offset (po->offset)
39 */
_proto_off_parse(struct ice_proto_off * po,u32 data)40 static void _proto_off_parse(struct ice_proto_off *po, u32 data)
41 {
42 po->polarity = (data & 0x1) != 0;
43 po->proto_id = (u8)((data >> 1) & 0xff);
44 po->offset = (u16)((data >> 12) & 0x3ff);
45 }
46
47 /** The function parses a 192 bits Protocol Group Table entry with below
48 * format:
49 * BIT 0-21: Protocol 0 (grp->po[0])
50 * BIT 22-43: Protocol 1 (grp->po[1])
51 * BIT 44-65: Protocol 2 (grp->po[2])
52 * BIT 66-87: Protocol 3 (grp->po[3])
53 * BIT 88-109: Protocol 4 (grp->po[4])
54 * BIT 110-131:Protocol 5 (grp->po[5])
55 * BIT 132-153:Protocol 6 (grp->po[6])
56 * BIT 154-175:Protocol 7 (grp->po[7])
57 * BIT 176-191:reserved
58 */
_proto_grp_parse_item(struct ice_hw * hw,u16 idx,void * item,void * data,int size)59 static void _proto_grp_parse_item(struct ice_hw *hw, u16 idx, void *item,
60 void *data, int size)
61 {
62 struct ice_proto_grp_item *grp = (struct ice_proto_grp_item *)item;
63 u8 *buf = (u8 *)data;
64 u32 d32;
65
66 grp->idx = idx;
67
68 d32 = *(u32 *)buf;
69 _proto_off_parse(&grp->po[0], d32);
70
71 d32 = (*(u32 *)&buf[2] >> 6);
72 _proto_off_parse(&grp->po[1], d32);
73
74 d32 = (*(u32 *)&buf[5] >> 4);
75 _proto_off_parse(&grp->po[2], d32);
76
77 d32 = (*(u32 *)&buf[8] >> 2);
78 _proto_off_parse(&grp->po[3], d32);
79
80 d32 = *(u32 *)&buf[11];
81 _proto_off_parse(&grp->po[4], d32);
82
83 d32 = (*(u32 *)&buf[13] >> 6);
84 _proto_off_parse(&grp->po[5], d32);
85
86 d32 = (*(u32 *)&buf[16] >> 4);
87 _proto_off_parse(&grp->po[6], d32);
88
89 d32 = (*(u32 *)&buf[19] >> 2);
90 _proto_off_parse(&grp->po[7], d32);
91
92 if (hw->debug_mask & ICE_DBG_PARSER)
93 ice_proto_grp_dump(hw, grp);
94 }
95
96 /**
97 * ice_proto_grp_table_get - create a proto group table
98 * @ice_hw: pointer to the hardware structure
99 */
ice_proto_grp_table_get(struct ice_hw * hw)100 struct ice_proto_grp_item *ice_proto_grp_table_get(struct ice_hw *hw)
101 {
102 return (struct ice_proto_grp_item *)
103 ice_parser_create_table(hw, ICE_SID_RXPARSER_PROTO_GRP,
104 sizeof(struct ice_proto_grp_item),
105 ICE_PROTO_GRP_TABLE_SIZE,
106 ice_parser_sect_item_get,
107 _proto_grp_parse_item, false);
108 }
109