1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2021 Intel Corporation
3 */
4
5 #include "ice_common.h"
6
7 #define ICE_XLT_KB_TBL_OFF 12
8 #define ICE_XLT_KB_TBL_ENTRY_SIZE 24
9
_xlt_kb_entry_dump(struct ice_hw * hw,struct ice_xlt_kb_entry * entry,int idx)10 static void _xlt_kb_entry_dump(struct ice_hw *hw,
11 struct ice_xlt_kb_entry *entry, int idx)
12 {
13 int i;
14
15 ice_info(hw, "key builder entry %d\n", idx);
16 ice_info(hw, "\txlt1_ad_sel = %d\n", entry->xlt1_ad_sel);
17 ice_info(hw, "\txlt2_ad_sel = %d\n", entry->xlt2_ad_sel);
18
19 for (i = 0; i < ICE_XLT_KB_FLAG0_14_CNT; i++)
20 ice_info(hw, "\tflg%d_sel = %d\n", i, entry->flg0_14_sel[i]);
21
22 ice_info(hw, "\txlt1_md_sel = %d\n", entry->xlt1_md_sel);
23 ice_info(hw, "\txlt2_md_sel = %d\n", entry->xlt2_md_sel);
24 }
25
26 /**
27 * ice_imem_dump - dump a xlt key build info
28 * @ice_hw: pointer to the hardware structure
29 * @kb: key build to dump
30 */
ice_xlt_kb_dump(struct ice_hw * hw,struct ice_xlt_kb * kb)31 void ice_xlt_kb_dump(struct ice_hw *hw, struct ice_xlt_kb *kb)
32 {
33 int i;
34
35 ice_info(hw, "xlt1_pm = %d\n", kb->xlt1_pm);
36 ice_info(hw, "xlt2_pm = %d\n", kb->xlt2_pm);
37 ice_info(hw, "prof_id_pm = %d\n", kb->prof_id_pm);
38 ice_info(hw, "flag15 low = 0x%08x\n", (u32)kb->flag15);
39 ice_info(hw, "flag15 high = 0x%08x\n", (u32)(kb->flag15 >> 32));
40
41 for (i = 0; i < ICE_XLT_KB_TBL_CNT; i++)
42 _xlt_kb_entry_dump(hw, &kb->entries[i], i);
43 }
44
45 /** The function parses a 192 bits XLT Key Build entry with below format:
46 * BIT 0-31: reserved
47 * BIT 32-34: XLT1 AdSel (entry->xlt1_ad_sel)
48 * BIT 35-37: XLT2 AdSel (entry->xlt2_ad_sel)
49 * BIT 38-46: Flag 0 Select (entry->flg0_14_sel[0])
50 * BIT 47-55: Flag 1 Select (entry->flg0_14_sel[1])
51 * BIT 56-64: Flag 2 Select (entry->flg0_14_sel[2])
52 * BIT 65-73: Flag 3 Select (entry->flg0_14_sel[3])
53 * BIT 74-82: Flag 4 Select (entry->flg0_14_sel[4])
54 * BIT 83-91: Flag 5 Select (entry->flg0_14_sel[5])
55 * BIT 92-100: Flag 6 Select (entry->flg0_14_sel[6])
56 * BIT 101-109:Flag 7 Select (entry->flg0_14_sel[7])
57 * BIT 110-118:Flag 8 Select (entry->flg0_14_sel[8])
58 * BIT 119-127:Flag 9 Select (entry->flg0_14_sel[9])
59 * BIT 128-136:Flag 10 Select (entry->flg0_14_sel[10])
60 * BIT 137-145:Flag 11 Select (entry->flg0_14_sel[11])
61 * BIT 146-154:Flag 12 Select (entry->flg0_14_sel[12])
62 * BIT 155-163:Flag 13 Select (entry->flg0_14_sel[13])
63 * BIT 164-172:Flag 14 Select (entry->flg0_14_sel[14])
64 * BIT 173-181:reserved
65 * BIT 182-186:XLT1 MdSel (entry->xlt1_md_sel)
66 * BIT 187-191:XLT2 MdSel (entry->xlt2_md_sel)
67 */
_kb_entry_init(struct ice_xlt_kb_entry * entry,u8 * data)68 static void _kb_entry_init(struct ice_xlt_kb_entry *entry, u8 *data)
69 {
70 u64 d64 = *(u64 *)&data[4];
71
72 entry->xlt1_ad_sel = (u8)(d64 & 0x7);
73 entry->xlt2_ad_sel = (u8)((d64 >> 3) & 0x7);
74 entry->flg0_14_sel[0] = (u16)((d64 >> 6) & 0x1ff);
75 entry->flg0_14_sel[1] = (u16)((d64 >> 15) & 0x1ff);
76 entry->flg0_14_sel[2] = (u16)((d64 >> 24) & 0x1ff);
77 entry->flg0_14_sel[3] = (u16)((d64 >> 33) & 0x1ff);
78 entry->flg0_14_sel[4] = (u16)((d64 >> 42) & 0x1ff);
79 entry->flg0_14_sel[5] = (u16)((d64 >> 51) & 0x1ff);
80
81 d64 = (*(u64 *)&data[11] >> 4);
82 entry->flg0_14_sel[6] = (u16)(d64 & 0x1ff);
83 entry->flg0_14_sel[7] = (u16)((d64 >> 9) & 0x1ff);
84 entry->flg0_14_sel[8] = (u16)((d64 >> 18) & 0x1ff);
85 entry->flg0_14_sel[9] = (u16)((d64 >> 27) & 0x1ff);
86 entry->flg0_14_sel[10] = (u16)((d64 >> 36) & 0x1ff);
87 entry->flg0_14_sel[11] = (u16)((d64 >> 45) & 0x1ff);
88
89 d64 = (*(u64 *)&data[18] >> 2);
90 entry->flg0_14_sel[12] = (u16)(d64 & 0x1ff);
91 entry->flg0_14_sel[13] = (u16)((d64 >> 9) & 0x1ff);
92 entry->flg0_14_sel[14] = (u16)((d64 >> 18) & 0x1ff);
93
94 entry->xlt1_md_sel = (u8)((d64 >> 36) & 0x1f);
95 entry->xlt2_md_sel = (u8)((d64 >> 41) & 0x1f);
96 }
97
98 /** The function parses a 204 bytes XLT Key Build Table with below format:
99 * byte 0: XLT1 Partition Mode (kb->xlt1_pm)
100 * byte 1: XLT2 Partition Mode (kb->xlt2_pm)
101 * byte 2: Profile ID Partition Mode (kb->prof_id_pm)
102 * byte 3: reserved
103 * byte 4-11: Flag15 Mask (kb->flag15)
104 * byte 12-203:8 Key Build entries (kb->entries)
105 */
_parse_kb_data(struct ice_hw * hw,struct ice_xlt_kb * kb,void * data)106 static void _parse_kb_data(struct ice_hw *hw, struct ice_xlt_kb *kb, void *data)
107 {
108 u8 *buf = (u8 *)data;
109 int i;
110
111 kb->xlt1_pm = buf[0];
112 kb->xlt2_pm = buf[1];
113 kb->prof_id_pm = buf[2];
114
115 kb->flag15 = *(u64 *)&buf[4];
116 for (i = 0; i < ICE_XLT_KB_TBL_CNT; i++)
117 _kb_entry_init(&kb->entries[i],
118 &buf[ICE_XLT_KB_TBL_OFF +
119 i * ICE_XLT_KB_TBL_ENTRY_SIZE]);
120
121 if (hw->debug_mask & ICE_DBG_PARSER)
122 ice_xlt_kb_dump(hw, kb);
123 }
124
_xlt_kb_get(struct ice_hw * hw,u32 sect_type)125 static struct ice_xlt_kb *_xlt_kb_get(struct ice_hw *hw, u32 sect_type)
126 {
127 struct ice_seg *seg = hw->seg;
128 struct ice_pkg_enum state;
129 struct ice_xlt_kb *kb;
130 void *data;
131
132 if (!seg)
133 return NULL;
134
135 kb = (struct ice_xlt_kb *)ice_malloc(hw, sizeof(*kb));
136 if (!kb) {
137 ice_debug(hw, ICE_DBG_PARSER, "failed to allocate memory for xlt key builder type %d.\n",
138 sect_type);
139 return NULL;
140 }
141
142 ice_memset(&state, 0, sizeof(state), ICE_NONDMA_MEM);
143 data = ice_pkg_enum_section(seg, &state, sect_type);
144 if (!data) {
145 ice_debug(hw, ICE_DBG_PARSER, "failed to find section type %d.\n",
146 sect_type);
147 return NULL;
148 }
149
150 _parse_kb_data(hw, kb, data);
151
152 return kb;
153 }
154
155 /**
156 * ice_xlt_kb_get_sw - create switch xlt key build
157 * @ice_hw: pointer to the hardware structure
158 */
ice_xlt_kb_get_sw(struct ice_hw * hw)159 struct ice_xlt_kb *ice_xlt_kb_get_sw(struct ice_hw *hw)
160 {
161 return _xlt_kb_get(hw, ICE_SID_XLT_KEY_BUILDER_SW);
162 }
163
164 /**
165 * ice_xlt_kb_get_acl - create acl xlt key build
166 * @ice_hw: pointer to the hardware structure
167 */
ice_xlt_kb_get_acl(struct ice_hw * hw)168 struct ice_xlt_kb *ice_xlt_kb_get_acl(struct ice_hw *hw)
169 {
170 return _xlt_kb_get(hw, ICE_SID_XLT_KEY_BUILDER_ACL);
171 }
172
173 /**
174 * ice_xlt_kb_get_fd - create fdir xlt key build
175 * @ice_hw: pointer to the hardware structure
176 */
ice_xlt_kb_get_fd(struct ice_hw * hw)177 struct ice_xlt_kb *ice_xlt_kb_get_fd(struct ice_hw *hw)
178 {
179 return _xlt_kb_get(hw, ICE_SID_XLT_KEY_BUILDER_FD);
180 }
181
182 /**
183 * ice_xlt_kb_get_fd - create rss xlt key build
184 * @ice_hw: pointer to the hardware structure
185 */
ice_xlt_kb_get_rss(struct ice_hw * hw)186 struct ice_xlt_kb *ice_xlt_kb_get_rss(struct ice_hw *hw)
187 {
188 return _xlt_kb_get(hw, ICE_SID_XLT_KEY_BUILDER_RSS);
189 }
190
191 /**
192 * ice_xlt_kb_flag_get - aggregate 64 bits packet flag into 16 bits xlt flag
193 * @kb: xlt key build
194 * @pkt_flag: 64 bits packet flag
195 */
ice_xlt_kb_flag_get(struct ice_xlt_kb * kb,u64 pkt_flag)196 u16 ice_xlt_kb_flag_get(struct ice_xlt_kb *kb, u64 pkt_flag)
197 {
198 struct ice_xlt_kb_entry *entry = &kb->entries[0];
199 u16 flg = 0;
200 int i;
201
202 /* check flag 15 */
203 if (kb->flag15 & pkt_flag)
204 flg = (u16)(1u << 15);
205
206 /* check flag 0 - 14 */
207 for (i = 0; i < 15; i++) {
208 /* only check first entry */
209 u16 idx = (u16)(entry->flg0_14_sel[i] & 0x3f);
210
211 if (pkt_flag & (1ul << idx))
212 flg |= (u16)(1u << i);
213 }
214
215 return flg;
216 }
217