1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2020 Broadcom
3 * All rights reserved.
4 */
5
6 #include <rte_common.h>
7 #include <rte_malloc.h>
8 #include <rte_log.h>
9 #include "bnxt.h"
10 #include "bnxt_ulp.h"
11 #include "tf_ext_flow_handle.h"
12 #include "ulp_mark_mgr.h"
13 #include "bnxt_tf_common.h"
14 #include "ulp_template_db_enum.h"
15 #include "ulp_template_struct.h"
16
17 #define ULP_MARK_DB_ENTRY_SET_VALID(mark_info) ((mark_info)->flags |=\
18 BNXT_ULP_MARK_VALID)
19 #define ULP_MARK_DB_ENTRY_IS_INVALID(mark_info) (!((mark_info)->flags &\
20 BNXT_ULP_MARK_VALID))
21 #define ULP_MARK_DB_ENTRY_SET_VFR_ID(mark_info) ((mark_info)->flags |=\
22 BNXT_ULP_MARK_VFR_ID)
23 #define ULP_MARK_DB_ENTRY_IS_VFR_ID(mark_info) ((mark_info)->flags &\
24 BNXT_ULP_MARK_VFR_ID)
25 #define ULP_MARK_DB_ENTRY_IS_GLOBAL_HW_FID(mark_info) ((mark_info)->flags &\
26 BNXT_ULP_MARK_GLOBAL_HW_FID)
27
28 static inline uint32_t
ulp_mark_db_idx_get(bool is_gfid,uint32_t fid,struct bnxt_ulp_mark_tbl * mtbl)29 ulp_mark_db_idx_get(bool is_gfid, uint32_t fid, struct bnxt_ulp_mark_tbl *mtbl)
30 {
31 uint32_t idx = 0, hashtype = 0;
32
33 if (is_gfid) {
34 TF_GET_HASH_TYPE_FROM_GFID(fid, hashtype);
35 TF_GET_HASH_INDEX_FROM_GFID(fid, idx);
36
37 /* Need to truncate anything beyond supported flows */
38 idx &= mtbl->gfid_mask;
39 if (hashtype)
40 idx |= mtbl->gfid_type_bit;
41 } else {
42 idx = fid;
43 }
44 return idx;
45 }
46
47 /*
48 * Allocate and Initialize all Mark Manager resources for this ulp context.
49 *
50 * ctxt [in] The ulp context for the mark manager.
51 *
52 */
53 int32_t
ulp_mark_db_init(struct bnxt_ulp_context * ctxt)54 ulp_mark_db_init(struct bnxt_ulp_context *ctxt)
55 {
56 struct bnxt_ulp_device_params *dparms;
57 struct bnxt_ulp_mark_tbl *mark_tbl = NULL;
58 uint32_t dev_id;
59
60 if (!ctxt) {
61 BNXT_TF_DBG(DEBUG, "Invalid ULP CTXT\n");
62 return -EINVAL;
63 }
64
65 if (bnxt_ulp_cntxt_dev_id_get(ctxt, &dev_id)) {
66 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
67 return -EINVAL;
68 }
69
70 dparms = bnxt_ulp_device_params_get(dev_id);
71 if (!dparms) {
72 BNXT_TF_DBG(DEBUG, "Failed to device parms\n");
73 return -EINVAL;
74 }
75
76 mark_tbl = rte_zmalloc("ulp_rx_mark_tbl_ptr",
77 sizeof(struct bnxt_ulp_mark_tbl), 0);
78 if (!mark_tbl)
79 goto mem_error;
80
81 /* Need to allocate 2 * Num flows to account for hash type bit.*/
82 mark_tbl->lfid_num_entries = dparms->mark_db_lfid_entries;
83 mark_tbl->lfid_tbl = rte_zmalloc("ulp_rx_em_flow_mark_table",
84 mark_tbl->lfid_num_entries *
85 sizeof(struct bnxt_lfid_mark_info),
86 0);
87 if (!mark_tbl->lfid_tbl)
88 goto mem_error;
89
90 /* Need to allocate 2 * Num flows to account for hash type bit */
91 mark_tbl->gfid_num_entries = dparms->mark_db_gfid_entries;
92 if (!mark_tbl->gfid_num_entries)
93 goto gfid_not_required;
94
95 mark_tbl->gfid_tbl = rte_zmalloc("ulp_rx_eem_flow_mark_table",
96 mark_tbl->gfid_num_entries *
97 sizeof(struct bnxt_gfid_mark_info),
98 0);
99 if (!mark_tbl->gfid_tbl)
100 goto mem_error;
101
102 /*
103 * These values are used to compress the FID to the allowable index
104 * space. The FID from hw may be the full hash which may be a big
105 * value to allocate and so allocate only needed hash values.
106 * gfid mask is the number of flow entries for the each left/right
107 * hash The gfid type bit is used to get to the higher or lower hash
108 * entries.
109 */
110 mark_tbl->gfid_mask = (mark_tbl->gfid_num_entries / 2) - 1;
111 mark_tbl->gfid_type_bit = (mark_tbl->gfid_num_entries / 2);
112
113 BNXT_TF_DBG(DEBUG, "GFID Max = 0x%08x\nGFID MASK = 0x%08x\n",
114 mark_tbl->gfid_num_entries - 1,
115 mark_tbl->gfid_mask);
116
117 gfid_not_required:
118 /* Add the mark tbl to the ulp context. */
119 bnxt_ulp_cntxt_ptr2_mark_db_set(ctxt, mark_tbl);
120 return 0;
121
122 mem_error:
123 if (mark_tbl) {
124 rte_free(mark_tbl->gfid_tbl);
125 rte_free(mark_tbl->lfid_tbl);
126 rte_free(mark_tbl);
127 }
128 BNXT_TF_DBG(DEBUG, "Failed to allocate memory for mark mgr\n");
129 return -ENOMEM;
130 }
131
132 /*
133 * Release all resources in the Mark Manager for this ulp context
134 *
135 * ctxt [in] The ulp context for the mark manager
136 *
137 */
138 int32_t
ulp_mark_db_deinit(struct bnxt_ulp_context * ctxt)139 ulp_mark_db_deinit(struct bnxt_ulp_context *ctxt)
140 {
141 struct bnxt_ulp_mark_tbl *mtbl;
142
143 mtbl = bnxt_ulp_cntxt_ptr2_mark_db_get(ctxt);
144
145 if (mtbl) {
146 rte_free(mtbl->gfid_tbl);
147 rte_free(mtbl->lfid_tbl);
148 rte_free(mtbl);
149
150 /* Safe to ignore on deinit */
151 (void)bnxt_ulp_cntxt_ptr2_mark_db_set(ctxt, NULL);
152 }
153
154 return 0;
155 }
156
157 /*
158 * Get a Mark from the Mark Manager
159 *
160 * ctxt [in] The ulp context for the mark manager
161 *
162 * is_gfid [in] The type of fid (GFID or LFID)
163 *
164 * fid [in] The flow id that is returned by HW in BD
165 *
166 * vfr_flag [out].it indicatesif mark is vfr_id or mark id
167 *
168 * mark [out] The mark that is associated with the FID
169 *
170 */
171 int32_t
ulp_mark_db_mark_get(struct bnxt_ulp_context * ctxt,bool is_gfid,uint32_t fid,uint32_t * vfr_flag,uint32_t * mark)172 ulp_mark_db_mark_get(struct bnxt_ulp_context *ctxt,
173 bool is_gfid,
174 uint32_t fid,
175 uint32_t *vfr_flag,
176 uint32_t *mark)
177 {
178 struct bnxt_ulp_mark_tbl *mtbl;
179 uint32_t idx = 0;
180
181 if (!ctxt || !mark)
182 return -EINVAL;
183
184 mtbl = bnxt_ulp_cntxt_ptr2_mark_db_get(ctxt);
185 if (!mtbl) {
186 BNXT_TF_DBG(ERR, "Unable to get Mark Table\n");
187 return -EINVAL;
188 }
189
190 idx = ulp_mark_db_idx_get(is_gfid, fid, mtbl);
191
192 if (is_gfid) {
193 if (idx >= mtbl->gfid_num_entries ||
194 ULP_MARK_DB_ENTRY_IS_INVALID(&mtbl->gfid_tbl[idx]))
195 return -EINVAL;
196
197 *vfr_flag = ULP_MARK_DB_ENTRY_IS_VFR_ID(&mtbl->gfid_tbl[idx]);
198 *mark = mtbl->gfid_tbl[idx].mark_id;
199 } else {
200 if (idx >= mtbl->lfid_num_entries ||
201 ULP_MARK_DB_ENTRY_IS_INVALID(&mtbl->lfid_tbl[idx]))
202 return -EINVAL;
203
204 *vfr_flag = ULP_MARK_DB_ENTRY_IS_VFR_ID(&mtbl->lfid_tbl[idx]);
205 *mark = mtbl->lfid_tbl[idx].mark_id;
206 }
207
208 return 0;
209 }
210
211 /*
212 * Adds a Mark to the Mark Manager
213 *
214 * ctxt [in] The ulp context for the mark manager
215 *
216 * mark_flag [in] mark flags.
217 *
218 * fid [in] The flow id that is returned by HW in BD
219 *
220 * mark [in] The mark to be associated with the FID
221 *
222 */
223 int32_t
ulp_mark_db_mark_add(struct bnxt_ulp_context * ctxt,uint32_t mark_flag,uint32_t fid,uint32_t mark)224 ulp_mark_db_mark_add(struct bnxt_ulp_context *ctxt,
225 uint32_t mark_flag,
226 uint32_t fid,
227 uint32_t mark)
228 {
229 struct bnxt_ulp_mark_tbl *mtbl;
230 uint32_t idx = 0;
231 bool is_gfid;
232
233 if (!ctxt) {
234 BNXT_TF_DBG(ERR, "Invalid ulp context\n");
235 return -EINVAL;
236 }
237
238 mtbl = bnxt_ulp_cntxt_ptr2_mark_db_get(ctxt);
239 if (!mtbl) {
240 BNXT_TF_DBG(ERR, "Unable to get Mark DB\n");
241 return -EINVAL;
242 }
243
244 is_gfid = (mark_flag & BNXT_ULP_MARK_GLOBAL_HW_FID);
245 if (is_gfid) {
246 idx = ulp_mark_db_idx_get(is_gfid, fid, mtbl);
247 if (idx >= mtbl->gfid_num_entries) {
248 BNXT_TF_DBG(ERR, "Mark index greater than allocated\n");
249 return -EINVAL;
250 }
251 BNXT_TF_DBG(DEBUG, "Set GFID[0x%0x] = 0x%0x\n", idx, mark);
252 mtbl->gfid_tbl[idx].mark_id = mark;
253 ULP_MARK_DB_ENTRY_SET_VALID(&mtbl->gfid_tbl[idx]);
254
255 } else {
256 /* For the LFID, the FID is used as the index */
257 if (fid >= mtbl->lfid_num_entries) {
258 BNXT_TF_DBG(ERR, "Mark index greater than allocated\n");
259 return -EINVAL;
260 }
261 BNXT_TF_DBG(DEBUG, "Set LFID[0x%0x] = 0x%0x\n", fid, mark);
262 mtbl->lfid_tbl[fid].mark_id = mark;
263 ULP_MARK_DB_ENTRY_SET_VALID(&mtbl->lfid_tbl[fid]);
264
265 if (mark_flag & BNXT_ULP_MARK_VFR_ID)
266 ULP_MARK_DB_ENTRY_SET_VFR_ID(&mtbl->lfid_tbl[fid]);
267 }
268
269 return 0;
270 }
271
272 /*
273 * Removes a Mark from the Mark Manager
274 *
275 * ctxt [in] The ulp context for the mark manager
276 *
277 * mark_flag [in] mark flags.
278 *
279 * fid [in] The flow id that is returned by HW in BD
280 *
281 */
282 int32_t
ulp_mark_db_mark_del(struct bnxt_ulp_context * ctxt,uint32_t mark_flag,uint32_t fid)283 ulp_mark_db_mark_del(struct bnxt_ulp_context *ctxt,
284 uint32_t mark_flag,
285 uint32_t fid)
286 {
287 struct bnxt_ulp_mark_tbl *mtbl;
288 uint32_t idx = 0;
289 bool is_gfid;
290
291 if (!ctxt) {
292 BNXT_TF_DBG(ERR, "Invalid ulp context\n");
293 return -EINVAL;
294 }
295
296 mtbl = bnxt_ulp_cntxt_ptr2_mark_db_get(ctxt);
297 if (!mtbl) {
298 BNXT_TF_DBG(ERR, "Unable to get Mark DB\n");
299 return -EINVAL;
300 }
301
302 is_gfid = (mark_flag & BNXT_ULP_MARK_GLOBAL_HW_FID);
303 if (is_gfid) {
304 idx = ulp_mark_db_idx_get(is_gfid, fid, mtbl);
305 if (idx >= mtbl->gfid_num_entries) {
306 BNXT_TF_DBG(ERR, "Mark index greater than allocated\n");
307 return -EINVAL;
308 }
309 BNXT_TF_DBG(DEBUG, "Reset GFID[0x%0x]\n", idx);
310 memset(&mtbl->gfid_tbl[idx], 0,
311 sizeof(struct bnxt_gfid_mark_info));
312
313 } else {
314 /* For the LFID, the FID is used as the index */
315 if (fid >= mtbl->lfid_num_entries) {
316 BNXT_TF_DBG(ERR, "Mark index greater than allocated\n");
317 return -EINVAL;
318 }
319 memset(&mtbl->lfid_tbl[fid], 0,
320 sizeof(struct bnxt_lfid_mark_info));
321 }
322
323 return 0;
324 }
325