1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2021 Broadcom
3 * All rights reserved.
4 */
5
6 #include <rte_malloc.h>
7 #include "bnxt.h"
8 #include "bnxt_tf_common.h"
9 #include "ulp_utils.h"
10 #include "ulp_template_struct.h"
11 #include "ulp_mapper.h"
12 #include "ulp_flow_db.h"
13 #include "ulp_fc_mgr.h"
14 #include "ulp_tun.h"
15
16 #define ULP_FLOW_DB_RES_DIR_BIT 31
17 #define ULP_FLOW_DB_RES_DIR_MASK 0x80000000
18 #define ULP_FLOW_DB_RES_FUNC_BITS 28
19 #define ULP_FLOW_DB_RES_FUNC_MASK 0x70000000
20 #define ULP_FLOW_DB_RES_NXT_MASK 0x0FFFFFFF
21 #define ULP_FLOW_DB_RES_FUNC_UPPER 5
22 #define ULP_FLOW_DB_RES_FUNC_NEED_LOWER 0x80
23 #define ULP_FLOW_DB_RES_FUNC_LOWER_MASK 0x1F
24
25 /* Macro to copy the nxt_resource_idx */
26 #define ULP_FLOW_DB_RES_NXT_SET(dst, src) {(dst) |= ((src) &\
27 ULP_FLOW_DB_RES_NXT_MASK); }
28 #define ULP_FLOW_DB_RES_NXT_RESET(dst) ((dst) &= ~(ULP_FLOW_DB_RES_NXT_MASK))
29
30 /*
31 * Helper function to set the bit in the active flows
32 * No validation is done in this function.
33 *
34 * flow_db [in] Ptr to flow database
35 * flow_type [in] - specify default or regular
36 * idx [in] The index to bit to be set or reset.
37 * flag [in] 1 to set and 0 to reset.
38 *
39 * returns none
40 */
41 static void
ulp_flow_db_active_flows_bit_set(struct bnxt_ulp_flow_db * flow_db,enum bnxt_ulp_fdb_type flow_type,uint32_t idx,uint32_t flag)42 ulp_flow_db_active_flows_bit_set(struct bnxt_ulp_flow_db *flow_db,
43 enum bnxt_ulp_fdb_type flow_type,
44 uint32_t idx,
45 uint32_t flag)
46 {
47 struct bnxt_ulp_flow_tbl *f_tbl = &flow_db->flow_tbl;
48 uint32_t a_idx = idx / ULP_INDEX_BITMAP_SIZE;
49
50 if (flag) {
51 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR || flow_type ==
52 BNXT_ULP_FDB_TYPE_RID)
53 ULP_INDEX_BITMAP_SET(f_tbl->active_reg_flows[a_idx],
54 idx);
55 if (flow_type == BNXT_ULP_FDB_TYPE_DEFAULT || flow_type ==
56 BNXT_ULP_FDB_TYPE_RID)
57 ULP_INDEX_BITMAP_SET(f_tbl->active_dflt_flows[a_idx],
58 idx);
59 } else {
60 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR || flow_type ==
61 BNXT_ULP_FDB_TYPE_RID)
62 ULP_INDEX_BITMAP_RESET(f_tbl->active_reg_flows[a_idx],
63 idx);
64 if (flow_type == BNXT_ULP_FDB_TYPE_DEFAULT || flow_type ==
65 BNXT_ULP_FDB_TYPE_RID)
66 ULP_INDEX_BITMAP_RESET(f_tbl->active_dflt_flows[a_idx],
67 idx);
68 }
69 }
70
71 /*
72 * Helper function to check if given fid is active flow.
73 * No validation being done in this function.
74 *
75 * flow_db [in] Ptr to flow database
76 * flow_type [in] - specify default or regular
77 * idx [in] The index to bit to be set or reset.
78 *
79 * returns 1 on set or 0 if not set.
80 */
81 static int32_t
ulp_flow_db_active_flows_bit_is_set(struct bnxt_ulp_flow_db * flow_db,enum bnxt_ulp_fdb_type flow_type,uint32_t idx)82 ulp_flow_db_active_flows_bit_is_set(struct bnxt_ulp_flow_db *flow_db,
83 enum bnxt_ulp_fdb_type flow_type,
84 uint32_t idx)
85 {
86 struct bnxt_ulp_flow_tbl *f_tbl = &flow_db->flow_tbl;
87 uint32_t a_idx = idx / ULP_INDEX_BITMAP_SIZE;
88 uint32_t reg, dflt;
89
90 reg = ULP_INDEX_BITMAP_GET(f_tbl->active_reg_flows[a_idx], idx);
91 dflt = ULP_INDEX_BITMAP_GET(f_tbl->active_dflt_flows[a_idx], idx);
92
93 switch (flow_type) {
94 case BNXT_ULP_FDB_TYPE_REGULAR:
95 return (reg && !dflt);
96 case BNXT_ULP_FDB_TYPE_DEFAULT:
97 return (!reg && dflt);
98 case BNXT_ULP_FDB_TYPE_RID:
99 return (reg && dflt);
100 default:
101 return 0;
102 }
103 }
104
105 static inline enum tf_dir
ulp_flow_db_resource_dir_get(struct ulp_fdb_resource_info * res_info)106 ulp_flow_db_resource_dir_get(struct ulp_fdb_resource_info *res_info)
107 {
108 return ((res_info->nxt_resource_idx & ULP_FLOW_DB_RES_DIR_MASK) >>
109 ULP_FLOW_DB_RES_DIR_BIT);
110 }
111
112 static uint8_t
ulp_flow_db_resource_func_get(struct ulp_fdb_resource_info * res_info)113 ulp_flow_db_resource_func_get(struct ulp_fdb_resource_info *res_info)
114 {
115 uint8_t func;
116
117 func = (((res_info->nxt_resource_idx & ULP_FLOW_DB_RES_FUNC_MASK) >>
118 ULP_FLOW_DB_RES_FUNC_BITS) << ULP_FLOW_DB_RES_FUNC_UPPER);
119 /* The resource func is split into upper and lower */
120 if (func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER)
121 return (func | res_info->resource_func_lower);
122 return func;
123 }
124
125 /*
126 * Helper function to copy the resource params to resource info
127 * No validation being done in this function.
128 *
129 * resource_info [out] Ptr to resource information
130 * params [in] The input params from the caller
131 * returns none
132 */
133 static void
ulp_flow_db_res_params_to_info(struct ulp_fdb_resource_info * resource_info,struct ulp_flow_db_res_params * params)134 ulp_flow_db_res_params_to_info(struct ulp_fdb_resource_info *resource_info,
135 struct ulp_flow_db_res_params *params)
136 {
137 uint32_t resource_func;
138
139 resource_info->nxt_resource_idx |= ((params->direction <<
140 ULP_FLOW_DB_RES_DIR_BIT) &
141 ULP_FLOW_DB_RES_DIR_MASK);
142 resource_func = (params->resource_func >> ULP_FLOW_DB_RES_FUNC_UPPER);
143 resource_info->nxt_resource_idx |= ((resource_func <<
144 ULP_FLOW_DB_RES_FUNC_BITS) &
145 ULP_FLOW_DB_RES_FUNC_MASK);
146
147 if (params->resource_func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER) {
148 /* Break the resource func into two parts */
149 resource_func = (params->resource_func &
150 ULP_FLOW_DB_RES_FUNC_LOWER_MASK);
151 resource_info->resource_func_lower = resource_func;
152 }
153
154 /* Store the handle as 64bit only for EM table entries */
155 if (params->resource_func != BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
156 resource_info->resource_hndl = (uint32_t)params->resource_hndl;
157 resource_info->resource_type = params->resource_type;
158 resource_info->resource_sub_type = params->resource_sub_type;
159 resource_info->fdb_flags = params->fdb_flags;
160 } else {
161 resource_info->resource_em_handle = params->resource_hndl;
162 }
163 }
164
165 /*
166 * Helper function to copy the resource params to resource info
167 * No validation being done in this function.
168 *
169 * resource_info [in] Ptr to resource information
170 * params [out] The output params to the caller
171 *
172 * returns none
173 */
174 static void
ulp_flow_db_res_info_to_params(struct ulp_fdb_resource_info * resource_info,struct ulp_flow_db_res_params * params)175 ulp_flow_db_res_info_to_params(struct ulp_fdb_resource_info *resource_info,
176 struct ulp_flow_db_res_params *params)
177 {
178 memset(params, 0, sizeof(struct ulp_flow_db_res_params));
179
180 /* use the helper function to get the resource func */
181 params->direction = ulp_flow_db_resource_dir_get(resource_info);
182 params->resource_func = ulp_flow_db_resource_func_get(resource_info);
183
184 if (params->resource_func == BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
185 params->resource_hndl = resource_info->resource_em_handle;
186 } else if (params->resource_func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER) {
187 params->resource_hndl = resource_info->resource_hndl;
188 params->resource_type = resource_info->resource_type;
189 params->resource_sub_type = resource_info->resource_sub_type;
190 params->fdb_flags = resource_info->fdb_flags;
191 }
192 }
193
194 /*
195 * Helper function to allocate the flow table and initialize
196 * the stack for allocation operations.
197 *
198 * flow_db [in] Ptr to flow database structure
199 *
200 * Returns 0 on success or negative number on failure.
201 */
202 static int32_t
ulp_flow_db_alloc_resource(struct bnxt_ulp_flow_db * flow_db)203 ulp_flow_db_alloc_resource(struct bnxt_ulp_flow_db *flow_db)
204 {
205 uint32_t idx = 0;
206 struct bnxt_ulp_flow_tbl *flow_tbl;
207 uint32_t size;
208
209 flow_tbl = &flow_db->flow_tbl;
210
211 size = sizeof(struct ulp_fdb_resource_info) * flow_tbl->num_resources;
212 flow_tbl->flow_resources =
213 rte_zmalloc("ulp_fdb_resource_info", size, 0);
214
215 if (!flow_tbl->flow_resources) {
216 BNXT_TF_DBG(ERR, "Failed to alloc memory for flow table\n");
217 return -ENOMEM;
218 }
219 size = sizeof(uint32_t) * flow_tbl->num_resources;
220 flow_tbl->flow_tbl_stack = rte_zmalloc("flow_tbl_stack", size, 0);
221 if (!flow_tbl->flow_tbl_stack) {
222 BNXT_TF_DBG(ERR, "Failed to alloc memory flow tbl stack\n");
223 return -ENOMEM;
224 }
225 size = (flow_tbl->num_flows / sizeof(uint64_t)) + 1;
226 size = ULP_BYTE_ROUND_OFF_8(size);
227 flow_tbl->active_reg_flows = rte_zmalloc("active reg flows", size,
228 ULP_BUFFER_ALIGN_64_BYTE);
229 if (!flow_tbl->active_reg_flows) {
230 BNXT_TF_DBG(ERR, "Failed to alloc memory active reg flows\n");
231 return -ENOMEM;
232 }
233
234 flow_tbl->active_dflt_flows = rte_zmalloc("active dflt flows", size,
235 ULP_BUFFER_ALIGN_64_BYTE);
236 if (!flow_tbl->active_dflt_flows) {
237 BNXT_TF_DBG(ERR, "Failed to alloc memory active dflt flows\n");
238 return -ENOMEM;
239 }
240
241 /* Initialize the stack table. */
242 for (idx = 0; idx < flow_tbl->num_resources; idx++)
243 flow_tbl->flow_tbl_stack[idx] = idx;
244
245 /* Ignore the first element in the list. */
246 flow_tbl->head_index = 1;
247 /* Tail points to the last entry in the list. */
248 flow_tbl->tail_index = flow_tbl->num_resources - 1;
249 return 0;
250 }
251
252 /*
253 * Helper function to deallocate the flow table.
254 *
255 * flow_db [in] Ptr to flow database structure
256 *
257 * Returns none.
258 */
259 static void
ulp_flow_db_dealloc_resource(struct bnxt_ulp_flow_db * flow_db)260 ulp_flow_db_dealloc_resource(struct bnxt_ulp_flow_db *flow_db)
261 {
262 struct bnxt_ulp_flow_tbl *flow_tbl = &flow_db->flow_tbl;
263
264 /* Free all the allocated tables in the flow table. */
265 if (flow_tbl->active_reg_flows) {
266 rte_free(flow_tbl->active_reg_flows);
267 flow_tbl->active_reg_flows = NULL;
268 }
269 if (flow_tbl->active_dflt_flows) {
270 rte_free(flow_tbl->active_dflt_flows);
271 flow_tbl->active_dflt_flows = NULL;
272 }
273
274 if (flow_tbl->flow_tbl_stack) {
275 rte_free(flow_tbl->flow_tbl_stack);
276 flow_tbl->flow_tbl_stack = NULL;
277 }
278
279 if (flow_tbl->flow_resources) {
280 rte_free(flow_tbl->flow_resources);
281 flow_tbl->flow_resources = NULL;
282 }
283 }
284
285 /*
286 * Helper function to add function id to the flow table
287 *
288 * flow_db [in] Ptr to flow table
289 * flow_id [in] The flow id of the flow
290 * func_id [in] The func_id to be set, for reset pass zero
291 *
292 * returns none
293 */
294 static void
ulp_flow_db_func_id_set(struct bnxt_ulp_flow_db * flow_db,uint32_t flow_id,uint32_t func_id)295 ulp_flow_db_func_id_set(struct bnxt_ulp_flow_db *flow_db,
296 uint32_t flow_id,
297 uint32_t func_id)
298 {
299 /* set the function id in the function table */
300 if (flow_id < flow_db->func_id_tbl_size)
301 flow_db->func_id_tbl[flow_id] = func_id;
302 else /* This should never happen */
303 BNXT_TF_DBG(ERR, "Invalid flow id, flowdb corrupt\n");
304 }
305
306 /*
307 * Initialize the parent-child database. Memory is allocated in this
308 * call and assigned to the database
309 *
310 * flow_db [in] Ptr to flow table
311 * num_entries[in] - number of entries to allocate
312 *
313 * Returns 0 on success or negative number on failure.
314 */
315 static int32_t
ulp_flow_db_parent_tbl_init(struct bnxt_ulp_flow_db * flow_db,uint32_t num_entries)316 ulp_flow_db_parent_tbl_init(struct bnxt_ulp_flow_db *flow_db,
317 uint32_t num_entries)
318 {
319 struct ulp_fdb_parent_child_db *p_db;
320 uint32_t size, idx;
321
322 if (!num_entries)
323 return 0;
324
325 /* update the sizes for the allocation */
326 p_db = &flow_db->parent_child_db;
327 p_db->child_bitset_size = (flow_db->flow_tbl.num_flows /
328 sizeof(uint64_t)) + 1; /* size in bytes */
329 p_db->child_bitset_size = ULP_BYTE_ROUND_OFF_8(p_db->child_bitset_size);
330 p_db->entries_count = num_entries;
331
332 /* allocate the memory */
333 p_db->parent_flow_tbl = rte_zmalloc("fdb parent flow tbl",
334 sizeof(struct ulp_fdb_parent_info) *
335 p_db->entries_count, 0);
336 if (!p_db->parent_flow_tbl) {
337 BNXT_TF_DBG(ERR,
338 "Failed to allocate memory fdb parent flow tbl\n");
339 return -ENOMEM;
340 }
341 size = p_db->child_bitset_size * p_db->entries_count;
342
343 /*
344 * allocate the big chunk of memory to be statically carved into
345 * child_fid_bitset pointer.
346 */
347 p_db->parent_flow_tbl_mem = rte_zmalloc("fdb parent flow tbl mem",
348 size,
349 ULP_BUFFER_ALIGN_64_BYTE);
350 if (!p_db->parent_flow_tbl_mem) {
351 BNXT_TF_DBG(ERR,
352 "Failed to allocate memory fdb parent flow mem\n");
353 return -ENOMEM;
354 }
355
356 /* set the pointers in parent table to their offsets */
357 for (idx = 0 ; idx < p_db->entries_count; idx++) {
358 p_db->parent_flow_tbl[idx].child_fid_bitset =
359 (uint64_t *)&p_db->parent_flow_tbl_mem[idx *
360 p_db->child_bitset_size];
361 }
362 /* success */
363 return 0;
364 }
365
366 /*
367 * Deinitialize the parent-child database. Memory is deallocated in
368 * this call and all flows should have been purged before this
369 * call.
370 *
371 * flow_db [in] Ptr to flow table
372 *
373 * Returns none
374 */
375 static void
ulp_flow_db_parent_tbl_deinit(struct bnxt_ulp_flow_db * flow_db)376 ulp_flow_db_parent_tbl_deinit(struct bnxt_ulp_flow_db *flow_db)
377 {
378 /* free the memory related to parent child database */
379 if (flow_db->parent_child_db.parent_flow_tbl_mem) {
380 rte_free(flow_db->parent_child_db.parent_flow_tbl_mem);
381 flow_db->parent_child_db.parent_flow_tbl_mem = NULL;
382 }
383 if (flow_db->parent_child_db.parent_flow_tbl) {
384 rte_free(flow_db->parent_child_db.parent_flow_tbl);
385 flow_db->parent_child_db.parent_flow_tbl = NULL;
386 }
387 }
388
389 /*
390 * Initialize the flow database. Memory is allocated in this
391 * call and assigned to the flow database.
392 *
393 * ulp_ctxt [in] Ptr to ulp context
394 *
395 * Returns 0 on success or negative number on failure.
396 */
397 int32_t
ulp_flow_db_init(struct bnxt_ulp_context * ulp_ctxt)398 ulp_flow_db_init(struct bnxt_ulp_context *ulp_ctxt)
399 {
400 struct bnxt_ulp_device_params *dparms;
401 struct bnxt_ulp_flow_tbl *flow_tbl;
402 struct bnxt_ulp_flow_db *flow_db;
403 uint32_t dev_id, num_flows;
404 enum bnxt_ulp_flow_mem_type mtype;
405
406 /* Get the dev specific number of flows that needed to be supported. */
407 if (bnxt_ulp_cntxt_dev_id_get(ulp_ctxt, &dev_id)) {
408 BNXT_TF_DBG(ERR, "Invalid device id\n");
409 return -EINVAL;
410 }
411
412 dparms = bnxt_ulp_device_params_get(dev_id);
413 if (!dparms) {
414 BNXT_TF_DBG(ERR, "could not fetch the device params\n");
415 return -ENODEV;
416 }
417
418 flow_db = rte_zmalloc("bnxt_ulp_flow_db",
419 sizeof(struct bnxt_ulp_flow_db), 0);
420 if (!flow_db) {
421 BNXT_TF_DBG(ERR,
422 "Failed to allocate memory for flow table ptr\n");
423 return -ENOMEM;
424 }
425
426 /* Attach the flow database to the ulp context. */
427 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, flow_db);
428
429 /* Determine the number of flows based on EM type */
430 if (bnxt_ulp_cntxt_mem_type_get(ulp_ctxt, &mtype))
431 goto error_free;
432
433 if (mtype == BNXT_ULP_FLOW_MEM_TYPE_INT)
434 num_flows = dparms->int_flow_db_num_entries;
435 else
436 num_flows = dparms->ext_flow_db_num_entries;
437
438 /* Populate the regular flow table limits. */
439 flow_tbl = &flow_db->flow_tbl;
440 flow_tbl->num_flows = num_flows + 1;
441 flow_tbl->num_resources = ((num_flows + 1) *
442 dparms->num_resources_per_flow);
443
444 /* Include the default flow table limits. */
445 flow_tbl->num_flows += (BNXT_FLOW_DB_DEFAULT_NUM_FLOWS + 1);
446 flow_tbl->num_resources += ((BNXT_FLOW_DB_DEFAULT_NUM_FLOWS + 1) *
447 BNXT_FLOW_DB_DEFAULT_NUM_RESOURCES);
448
449 /* Allocate the resource for the flow table. */
450 if (ulp_flow_db_alloc_resource(flow_db))
451 goto error_free;
452
453 /* add 1 since we are not using index 0 for flow id */
454 flow_db->func_id_tbl_size = flow_tbl->num_flows + 1;
455 /* Allocate the function Id table */
456 flow_db->func_id_tbl = rte_zmalloc("bnxt_ulp_flow_db_func_id_table",
457 flow_db->func_id_tbl_size *
458 sizeof(uint16_t), 0);
459 if (!flow_db->func_id_tbl) {
460 BNXT_TF_DBG(ERR,
461 "Failed to allocate mem for flow table func id\n");
462 goto error_free;
463 }
464 /* initialize the parent child database */
465 if (ulp_flow_db_parent_tbl_init(flow_db,
466 dparms->fdb_parent_flow_entries)) {
467 BNXT_TF_DBG(ERR,
468 "Failed to allocate mem for parent child db\n");
469 goto error_free;
470 }
471
472 /* All good so return. */
473 BNXT_TF_DBG(DEBUG, "FlowDB initialized with %d flows.\n",
474 flow_tbl->num_flows);
475 return 0;
476 error_free:
477 ulp_flow_db_deinit(ulp_ctxt);
478 return -ENOMEM;
479 }
480
481 /*
482 * Deinitialize the flow database. Memory is deallocated in
483 * this call and all flows should have been purged before this
484 * call.
485 *
486 * ulp_ctxt [in] Ptr to ulp context
487 *
488 * Returns 0 on success.
489 */
490 int32_t
ulp_flow_db_deinit(struct bnxt_ulp_context * ulp_ctxt)491 ulp_flow_db_deinit(struct bnxt_ulp_context *ulp_ctxt)
492 {
493 struct bnxt_ulp_flow_db *flow_db;
494
495 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
496 if (!flow_db)
497 return -EINVAL;
498
499 /* Detach the flow database from the ulp context. */
500 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, NULL);
501
502 /* Free up all the memory. */
503 ulp_flow_db_parent_tbl_deinit(flow_db);
504 ulp_flow_db_dealloc_resource(flow_db);
505 rte_free(flow_db->func_id_tbl);
506 rte_free(flow_db);
507
508 return 0;
509 }
510
511 /*
512 * Allocate the flow database entry
513 *
514 * ulp_ctxt [in] Ptr to ulp_context
515 * flow_type [in] - specify default or regular
516 * func_id [in].function id of the ingress port
517 * fid [out] The index to the flow entry
518 *
519 * returns 0 on success and negative on failure.
520 */
521 int32_t
ulp_flow_db_fid_alloc(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint16_t func_id,uint32_t * fid)522 ulp_flow_db_fid_alloc(struct bnxt_ulp_context *ulp_ctxt,
523 enum bnxt_ulp_fdb_type flow_type,
524 uint16_t func_id,
525 uint32_t *fid)
526 {
527 struct bnxt_ulp_flow_db *flow_db;
528 struct bnxt_ulp_flow_tbl *flow_tbl;
529
530 *fid = 0; /* Initialize fid to invalid value */
531 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
532 if (!flow_db) {
533 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
534 return -EINVAL;
535 }
536
537 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
538 BNXT_TF_DBG(ERR, "Invalid flow type\n");
539 return -EINVAL;
540 }
541
542 flow_tbl = &flow_db->flow_tbl;
543 /* check for max flows */
544 if (flow_tbl->num_flows <= flow_tbl->head_index) {
545 BNXT_TF_DBG(ERR, "Flow database has reached max flows\n");
546 return -ENOMEM;
547 }
548 if (flow_tbl->tail_index <= (flow_tbl->head_index + 1)) {
549 BNXT_TF_DBG(ERR, "Flow database has reached max resources\n");
550 return -ENOMEM;
551 }
552 *fid = flow_tbl->flow_tbl_stack[flow_tbl->head_index];
553 flow_tbl->head_index++;
554
555 /* Set the flow type */
556 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, *fid, 1);
557
558 /* function id update is only valid for regular flow table */
559 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
560 ulp_flow_db_func_id_set(flow_db, *fid, func_id);
561
562 /* return success */
563 return 0;
564 }
565
566 /*
567 * Allocate the flow database entry.
568 * The params->critical_resource has to be set to 0 to allocate a new resource.
569 *
570 * ulp_ctxt [in] Ptr to ulp_context
571 * flow_type [in] Specify it is regular or default flow
572 * fid [in] The index to the flow entry
573 * params [in] The contents to be copied into resource
574 *
575 * returns 0 on success and negative on failure.
576 */
577 int32_t
ulp_flow_db_resource_add(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint32_t fid,struct ulp_flow_db_res_params * params)578 ulp_flow_db_resource_add(struct bnxt_ulp_context *ulp_ctxt,
579 enum bnxt_ulp_fdb_type flow_type,
580 uint32_t fid,
581 struct ulp_flow_db_res_params *params)
582 {
583 struct bnxt_ulp_flow_db *flow_db;
584 struct bnxt_ulp_flow_tbl *flow_tbl;
585 struct ulp_fdb_resource_info *resource, *fid_resource;
586 struct bnxt_ulp_fc_info *ulp_fc_info;
587 uint32_t idx;
588
589 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
590 if (!flow_db) {
591 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
592 return -EINVAL;
593 }
594
595 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
596 BNXT_TF_DBG(ERR, "Invalid flow type\n");
597 return -EINVAL;
598 }
599
600 flow_tbl = &flow_db->flow_tbl;
601 /* check for max flows */
602 if (fid >= flow_tbl->num_flows || !fid) {
603 BNXT_TF_DBG(ERR, "Invalid flow index\n");
604 return -EINVAL;
605 }
606
607 /* check if the flow is active or not */
608 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
609 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
610 return -EINVAL;
611 }
612
613 /* check for max resource */
614 if ((flow_tbl->head_index + 1) >= flow_tbl->tail_index) {
615 BNXT_TF_DBG(ERR, "Flow db has reached max resources\n");
616 return -ENOMEM;
617 }
618 fid_resource = &flow_tbl->flow_resources[fid];
619
620 if (params->critical_resource && fid_resource->resource_em_handle) {
621 BNXT_TF_DBG(DEBUG, "Ignore multiple critical resources\n");
622 /* Ignore the multiple critical resources */
623 params->critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
624 }
625
626 if (!params->critical_resource) {
627 /* Not the critical_resource so allocate a resource */
628 idx = flow_tbl->flow_tbl_stack[flow_tbl->tail_index];
629 resource = &flow_tbl->flow_resources[idx];
630 flow_tbl->tail_index--;
631
632 /* Update the chain list of resource*/
633 ULP_FLOW_DB_RES_NXT_SET(resource->nxt_resource_idx,
634 fid_resource->nxt_resource_idx);
635 /* update the contents */
636 ulp_flow_db_res_params_to_info(resource, params);
637 ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
638 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
639 idx);
640 } else {
641 /* critical resource. Just update the fid resource */
642 ulp_flow_db_res_params_to_info(fid_resource, params);
643 }
644
645 ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ulp_ctxt);
646 if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
647 params->resource_sub_type ==
648 BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT &&
649 ulp_fc_info && ulp_fc_info->num_counters) {
650 /* Store the first HW counter ID for this table */
651 if (!ulp_fc_mgr_start_idx_isset(ulp_ctxt, params->direction))
652 ulp_fc_mgr_start_idx_set(ulp_ctxt, params->direction,
653 params->resource_hndl);
654
655 ulp_fc_mgr_cntr_set(ulp_ctxt, params->direction,
656 params->resource_hndl);
657
658 if (!ulp_fc_mgr_thread_isstarted(ulp_ctxt))
659 ulp_fc_mgr_thread_start(ulp_ctxt);
660 }
661
662 /* all good, return success */
663 return 0;
664 }
665
666 /*
667 * Free the flow database entry.
668 * The params->critical_resource has to be set to 1 to free the first resource.
669 *
670 * ulp_ctxt [in] Ptr to ulp_context
671 * flow_type [in] Specify it is regular or default flow
672 * fid [in] The index to the flow entry
673 * params [in/out] The contents to be copied into params.
674 * Only the critical_resource needs to be set by the caller.
675 *
676 * Returns 0 on success and negative on failure.
677 */
678 int32_t
ulp_flow_db_resource_del(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint32_t fid,struct ulp_flow_db_res_params * params)679 ulp_flow_db_resource_del(struct bnxt_ulp_context *ulp_ctxt,
680 enum bnxt_ulp_fdb_type flow_type,
681 uint32_t fid,
682 struct ulp_flow_db_res_params *params)
683 {
684 struct bnxt_ulp_flow_db *flow_db;
685 struct bnxt_ulp_flow_tbl *flow_tbl;
686 struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
687 uint32_t nxt_idx = 0;
688
689 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
690 if (!flow_db) {
691 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
692 return -EINVAL;
693 }
694
695 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
696 BNXT_TF_DBG(ERR, "Invalid flow type\n");
697 return -EINVAL;
698 }
699
700 flow_tbl = &flow_db->flow_tbl;
701 /* check for max flows */
702 if (fid >= flow_tbl->num_flows || !fid) {
703 BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
704 return -EINVAL;
705 }
706
707 /* check if the flow is active or not */
708 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
709 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
710 return -EINVAL;
711 }
712
713 fid_resource = &flow_tbl->flow_resources[fid];
714 if (!params->critical_resource) {
715 /* Not the critical resource so free the resource */
716 ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
717 fid_resource->nxt_resource_idx);
718 if (!nxt_idx) {
719 /* reached end of resources */
720 return -ENOENT;
721 }
722 nxt_resource = &flow_tbl->flow_resources[nxt_idx];
723
724 /* connect the fid resource to the next resource */
725 ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
726 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
727 nxt_resource->nxt_resource_idx);
728
729 /* update the contents to be given to caller */
730 ulp_flow_db_res_info_to_params(nxt_resource, params);
731
732 /* Delete the nxt_resource */
733 memset(nxt_resource, 0, sizeof(struct ulp_fdb_resource_info));
734
735 /* add it to the free list */
736 flow_tbl->tail_index++;
737 if (flow_tbl->tail_index >= flow_tbl->num_resources) {
738 BNXT_TF_DBG(ERR, "FlowDB:Tail reached max\n");
739 return -ENOENT;
740 }
741 flow_tbl->flow_tbl_stack[flow_tbl->tail_index] = nxt_idx;
742
743 } else {
744 /* Critical resource. copy the contents and exit */
745 ulp_flow_db_res_info_to_params(fid_resource, params);
746 ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
747 fid_resource->nxt_resource_idx);
748 memset(fid_resource, 0, sizeof(struct ulp_fdb_resource_info));
749 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
750 nxt_idx);
751 }
752
753 /* Now that the HW Flow counter resource is deleted, reset it's
754 * corresponding slot in the SW accumulation table in the Flow Counter
755 * manager
756 */
757 if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
758 params->resource_sub_type ==
759 BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT) {
760 ulp_fc_mgr_cntr_reset(ulp_ctxt, params->direction,
761 params->resource_hndl);
762 }
763
764 /* all good, return success */
765 return 0;
766 }
767
768 /*
769 * Free the flow database entry
770 *
771 * ulp_ctxt [in] Ptr to ulp_context
772 * flow_type [in] - specify default or regular
773 * fid [in] The index to the flow entry
774 *
775 * returns 0 on success and negative on failure.
776 */
777 int32_t
ulp_flow_db_fid_free(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint32_t fid)778 ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt,
779 enum bnxt_ulp_fdb_type flow_type,
780 uint32_t fid)
781 {
782 struct bnxt_ulp_flow_tbl *flow_tbl;
783 struct bnxt_ulp_flow_db *flow_db;
784
785 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
786 if (!flow_db) {
787 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
788 return -EINVAL;
789 }
790
791 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
792 BNXT_TF_DBG(ERR, "Invalid flow type\n");
793 return -EINVAL;
794 }
795
796 flow_tbl = &flow_db->flow_tbl;
797
798 /* check for limits of fid */
799 if (fid >= flow_tbl->num_flows || !fid) {
800 BNXT_TF_DBG(ERR, "Invalid flow index\n");
801 return -EINVAL;
802 }
803
804 /* check if the flow is active or not */
805 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
806 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
807 return -EINVAL;
808 }
809 flow_tbl->head_index--;
810 if (!flow_tbl->head_index) {
811 BNXT_TF_DBG(ERR, "FlowDB: Head Ptr is zero\n");
812 return -ENOENT;
813 }
814
815 flow_tbl->flow_tbl_stack[flow_tbl->head_index] = fid;
816
817 /* Clear the flows bitmap */
818 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, fid, 0);
819
820 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
821 ulp_flow_db_func_id_set(flow_db, fid, 0);
822
823 /* all good, return success */
824 return 0;
825 }
826
827 /*
828 *Get the flow database entry details
829 *
830 * ulp_ctxt [in] Ptr to ulp_context
831 * flow_type [in] - specify default or regular
832 * fid [in] The index to the flow entry
833 * nxt_idx [in/out] the index to the next entry
834 * params [out] The contents to be copied into params.
835 *
836 * returns 0 on success and negative on failure.
837 */
838 int32_t
ulp_flow_db_resource_get(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint32_t fid,uint32_t * nxt_idx,struct ulp_flow_db_res_params * params)839 ulp_flow_db_resource_get(struct bnxt_ulp_context *ulp_ctxt,
840 enum bnxt_ulp_fdb_type flow_type,
841 uint32_t fid,
842 uint32_t *nxt_idx,
843 struct ulp_flow_db_res_params *params)
844 {
845 struct bnxt_ulp_flow_db *flow_db;
846 struct bnxt_ulp_flow_tbl *flow_tbl;
847 struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
848
849 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
850 if (!flow_db) {
851 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
852 return -EINVAL;
853 }
854
855 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
856 BNXT_TF_DBG(ERR, "Invalid flow type\n");
857 return -EINVAL;
858 }
859
860 flow_tbl = &flow_db->flow_tbl;
861
862 /* check for limits of fid */
863 if (fid >= flow_tbl->num_flows || !fid) {
864 BNXT_TF_DBG(ERR, "Invalid flow index\n");
865 return -EINVAL;
866 }
867
868 /* check if the flow is active or not */
869 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
870 BNXT_TF_DBG(ERR, "flow does not exist\n");
871 return -EINVAL;
872 }
873
874 if (!*nxt_idx) {
875 fid_resource = &flow_tbl->flow_resources[fid];
876 ulp_flow_db_res_info_to_params(fid_resource, params);
877 ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
878 fid_resource->nxt_resource_idx);
879 } else {
880 nxt_resource = &flow_tbl->flow_resources[*nxt_idx];
881 ulp_flow_db_res_info_to_params(nxt_resource, params);
882 *nxt_idx = 0;
883 ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
884 nxt_resource->nxt_resource_idx);
885 }
886
887 /* all good, return success */
888 return 0;
889 }
890
891 /*
892 * Get the flow database entry iteratively
893 *
894 * flow_tbl [in] Ptr to flow table
895 * flow_type [in] - specify default or regular
896 * fid [in/out] The index to the flow entry
897 *
898 * returns 0 on success and negative on failure.
899 */
900 static int32_t
ulp_flow_db_next_entry_get(struct bnxt_ulp_flow_db * flow_db,enum bnxt_ulp_fdb_type flow_type,uint32_t * fid)901 ulp_flow_db_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
902 enum bnxt_ulp_fdb_type flow_type,
903 uint32_t *fid)
904 {
905 uint32_t lfid = *fid;
906 uint32_t idx, s_idx, mod_fid;
907 uint64_t bs;
908 uint64_t *active_flows;
909 struct bnxt_ulp_flow_tbl *flowtbl = &flow_db->flow_tbl;
910
911 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR) {
912 active_flows = flowtbl->active_reg_flows;
913 } else if (flow_type == BNXT_ULP_FDB_TYPE_DEFAULT) {
914 active_flows = flowtbl->active_dflt_flows;
915 } else {
916 BNXT_TF_DBG(ERR, "Invalid flow type %x\n", flow_type);
917 return -EINVAL;
918 }
919
920 do {
921 /* increment the flow id to find the next valid flow id */
922 lfid++;
923 if (lfid >= flowtbl->num_flows)
924 return -ENOENT;
925 idx = lfid / ULP_INDEX_BITMAP_SIZE;
926 mod_fid = lfid % ULP_INDEX_BITMAP_SIZE;
927 s_idx = idx;
928 while (!(bs = active_flows[idx])) {
929 idx++;
930 if ((idx * ULP_INDEX_BITMAP_SIZE) >= flowtbl->num_flows)
931 return -ENOENT;
932 }
933 /*
934 * remove the previous bits in the bitset bs to find the
935 * next non zero bit in the bitset. This needs to be done
936 * only if the idx is same as he one you started.
937 */
938 if (s_idx == idx)
939 bs &= (-1UL >> mod_fid);
940 lfid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
941 if (*fid >= lfid) {
942 BNXT_TF_DBG(ERR, "Flow Database is corrupt\n");
943 return -ENOENT;
944 }
945 } while (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type,
946 lfid));
947
948 /* all good, return success */
949 *fid = lfid;
950 return 0;
951 }
952
953 /*
954 * Flush all flows in the flow database.
955 *
956 * ulp_ctxt [in] Ptr to ulp context
957 * flow_type [in] - specify default or regular
958 *
959 * returns 0 on success or negative number on failure
960 */
961 int32_t
ulp_flow_db_flush_flows(struct bnxt_ulp_context * ulp_ctx,enum bnxt_ulp_fdb_type flow_type)962 ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
963 enum bnxt_ulp_fdb_type flow_type)
964 {
965 uint32_t fid = 0;
966 struct bnxt_ulp_flow_db *flow_db;
967
968 if (!ulp_ctx) {
969 BNXT_TF_DBG(ERR, "Invalid Argument\n");
970 return -EINVAL;
971 }
972
973 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
974 if (!flow_db) {
975 BNXT_TF_DBG(ERR, "Flow database not found\n");
976 return -EINVAL;
977 }
978 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
979 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
980 return -EINVAL;
981 }
982
983 while (!ulp_flow_db_next_entry_get(flow_db, flow_type, &fid))
984 ulp_mapper_resources_free(ulp_ctx, flow_type, fid);
985
986 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
987
988 return 0;
989 }
990
991 /*
992 * Flush all flows in the flow database that belong to a device function.
993 *
994 * ulp_ctxt [in] Ptr to ulp context
995 * func_id [in] - The port function id
996 *
997 * returns 0 on success or negative number on failure
998 */
999 int32_t
ulp_flow_db_function_flow_flush(struct bnxt_ulp_context * ulp_ctx,uint16_t func_id)1000 ulp_flow_db_function_flow_flush(struct bnxt_ulp_context *ulp_ctx,
1001 uint16_t func_id)
1002 {
1003 uint32_t flow_id = 0;
1004 struct bnxt_ulp_flow_db *flow_db;
1005
1006 if (!ulp_ctx || !func_id) {
1007 BNXT_TF_DBG(ERR, "Invalid Argument\n");
1008 return -EINVAL;
1009 }
1010
1011 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1012 if (!flow_db) {
1013 BNXT_TF_DBG(ERR, "Flow database not found\n");
1014 return -EINVAL;
1015 }
1016 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
1017 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
1018 return -EINVAL;
1019 }
1020
1021 while (!ulp_flow_db_next_entry_get(flow_db, BNXT_ULP_FDB_TYPE_REGULAR,
1022 &flow_id)) {
1023 if (flow_db->func_id_tbl[flow_id] == func_id)
1024 ulp_mapper_resources_free(ulp_ctx,
1025 BNXT_ULP_FDB_TYPE_REGULAR,
1026 flow_id);
1027 }
1028 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
1029 return 0;
1030 }
1031
1032 /*
1033 * Flush all flows in the flow database that are associated with the session.
1034 *
1035 * ulp_ctxt [in] Ptr to ulp context
1036 *
1037 * returns 0 on success or negative number on failure
1038 */
1039 int32_t
ulp_flow_db_session_flow_flush(struct bnxt_ulp_context * ulp_ctx)1040 ulp_flow_db_session_flow_flush(struct bnxt_ulp_context *ulp_ctx)
1041 {
1042 /*
1043 * TBD: Tf core implementation of FW session flush shall change this
1044 * implementation.
1045 */
1046 return ulp_flow_db_flush_flows(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR);
1047 }
1048
1049 /*
1050 * Check that flow id matches the function id or not
1051 *
1052 * ulp_ctxt [in] Ptr to ulp context
1053 * flow_db [in] Ptr to flow table
1054 * func_id [in] The func_id to be set, for reset pass zero.
1055 *
1056 * returns true on success or false on failure
1057 */
1058 bool
ulp_flow_db_validate_flow_func(struct bnxt_ulp_context * ulp_ctx,uint32_t flow_id,uint32_t func_id)1059 ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
1060 uint32_t flow_id,
1061 uint32_t func_id)
1062 {
1063 struct bnxt_ulp_flow_db *flow_db;
1064
1065 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1066 if (!flow_db) {
1067 BNXT_TF_DBG(ERR, "Flow database not found\n");
1068 return false;
1069 }
1070
1071 /* set the function id in the function table */
1072 if (flow_id < flow_db->func_id_tbl_size && func_id &&
1073 flow_db->func_id_tbl[flow_id] == func_id)
1074 return true;
1075
1076 return false;
1077 }
1078
1079 /*
1080 * Internal api to traverse the resource list within a flow
1081 * and match a resource based on resource func and resource
1082 * sub type. This api should be used only for resources that
1083 * are unique and do not have multiple instances of resource
1084 * func and sub type combination since it will return only
1085 * the first match.
1086 */
1087 static int32_t
ulp_flow_db_resource_params_get(struct bnxt_ulp_context * ulp_ctx,enum bnxt_ulp_fdb_type flow_type,uint32_t flow_id,uint32_t resource_func,uint32_t res_subtype,struct ulp_flow_db_res_params * params)1088 ulp_flow_db_resource_params_get(struct bnxt_ulp_context *ulp_ctx,
1089 enum bnxt_ulp_fdb_type flow_type,
1090 uint32_t flow_id,
1091 uint32_t resource_func,
1092 uint32_t res_subtype,
1093 struct ulp_flow_db_res_params *params)
1094 {
1095 struct bnxt_ulp_flow_db *flow_db;
1096 struct bnxt_ulp_flow_tbl *flow_tbl;
1097 struct ulp_fdb_resource_info *fid_res;
1098 uint32_t res_id;
1099
1100 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1101 if (!flow_db) {
1102 BNXT_TF_DBG(ERR, "Flow database not found\n");
1103 return -EINVAL;
1104 }
1105
1106 if (!params) {
1107 BNXT_TF_DBG(ERR, "invalid argument\n");
1108 return -EINVAL;
1109 }
1110
1111 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1112 BNXT_TF_DBG(ERR, "Invalid flow type\n");
1113 return -EINVAL;
1114 }
1115
1116 flow_tbl = &flow_db->flow_tbl;
1117
1118 /* check for limits of fid */
1119 if (flow_id >= flow_tbl->num_flows || !flow_id) {
1120 BNXT_TF_DBG(ERR, "Invalid flow index\n");
1121 return -EINVAL;
1122 }
1123
1124 /* check if the flow is active or not */
1125 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, flow_id)) {
1126 BNXT_TF_DBG(ERR, "flow does not exist\n");
1127 return -EINVAL;
1128 }
1129 /* Iterate the resource to get the resource handle */
1130 res_id = flow_id;
1131 memset(params, 0, sizeof(struct ulp_flow_db_res_params));
1132 while (res_id) {
1133 fid_res = &flow_tbl->flow_resources[res_id];
1134 if (ulp_flow_db_resource_func_get(fid_res) == resource_func) {
1135 if (resource_func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER) {
1136 if (res_subtype == fid_res->resource_sub_type) {
1137 ulp_flow_db_res_info_to_params(fid_res,
1138 params);
1139 return 0;
1140 }
1141
1142 } else if (resource_func ==
1143 BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
1144 ulp_flow_db_res_info_to_params(fid_res,
1145 params);
1146 return 0;
1147 }
1148 }
1149 res_id = 0;
1150 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1151 }
1152 return -ENOENT;
1153 }
1154
1155 /*
1156 * Api to get the cfa action pointer from a flow.
1157 *
1158 * ulp_ctxt [in] Ptr to ulp context
1159 * flow_id [in] flow id
1160 * cfa_action [out] The resource handle stored in the flow database
1161 *
1162 * returns 0 on success
1163 */
1164 int32_t
ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context * ulp_ctx,uint32_t flow_id,uint16_t * cfa_action)1165 ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context *ulp_ctx,
1166 uint32_t flow_id,
1167 uint16_t *cfa_action)
1168 {
1169 uint8_t sub_typ = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_VFR_CFA_ACTION;
1170 struct ulp_flow_db_res_params params;
1171 int32_t rc;
1172
1173 rc = ulp_flow_db_resource_params_get(ulp_ctx,
1174 BNXT_ULP_FDB_TYPE_DEFAULT,
1175 flow_id,
1176 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1177 sub_typ, ¶ms);
1178 if (rc) {
1179 BNXT_TF_DBG(INFO, "CFA Action ptr not found for flow id %u\n",
1180 flow_id);
1181 return -ENOENT;
1182 }
1183 *cfa_action = params.resource_hndl;
1184 return 0;
1185 }
1186
1187 /* internal validation function for parent flow tbl */
1188 static struct ulp_fdb_parent_info *
ulp_flow_db_pc_db_entry_get(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx)1189 ulp_flow_db_pc_db_entry_get(struct bnxt_ulp_context *ulp_ctxt,
1190 uint32_t pc_idx)
1191 {
1192 struct bnxt_ulp_flow_db *flow_db;
1193
1194 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1195 if (!flow_db) {
1196 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1197 return NULL;
1198 }
1199
1200 /* check for max flows */
1201 if (pc_idx >= BNXT_ULP_MAX_TUN_CACHE_ENTRIES) {
1202 BNXT_TF_DBG(ERR, "Invalid tunnel index\n");
1203 return NULL;
1204 }
1205
1206 /* No support for parent child db then just exit */
1207 if (!flow_db->parent_child_db.entries_count) {
1208 BNXT_TF_DBG(ERR, "parent child db not supported\n");
1209 return NULL;
1210 }
1211 if (!flow_db->parent_child_db.parent_flow_tbl[pc_idx].valid) {
1212 BNXT_TF_DBG(ERR, "Not a valid tunnel index\n");
1213 return NULL;
1214 }
1215
1216 return &flow_db->parent_child_db.parent_flow_tbl[pc_idx];
1217 }
1218
1219 /* internal validation function for parent flow tbl */
1220 static struct bnxt_ulp_flow_db *
ulp_flow_db_parent_arg_validation(struct bnxt_ulp_context * ulp_ctxt,uint32_t tun_idx)1221 ulp_flow_db_parent_arg_validation(struct bnxt_ulp_context *ulp_ctxt,
1222 uint32_t tun_idx)
1223 {
1224 struct bnxt_ulp_flow_db *flow_db;
1225
1226 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1227 if (!flow_db) {
1228 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1229 return NULL;
1230 }
1231
1232 /* check for max flows */
1233 if (tun_idx >= BNXT_ULP_MAX_TUN_CACHE_ENTRIES) {
1234 BNXT_TF_DBG(ERR, "Invalid tunnel index\n");
1235 return NULL;
1236 }
1237
1238 /* No support for parent child db then just exit */
1239 if (!flow_db->parent_child_db.entries_count) {
1240 BNXT_TF_DBG(ERR, "parent child db not supported\n");
1241 return NULL;
1242 }
1243
1244 return flow_db;
1245 }
1246
1247 /*
1248 * Allocate the entry in the parent-child database
1249 *
1250 * ulp_ctxt [in] Ptr to ulp_context
1251 * tun_idx [in] The tunnel index of the flow entry
1252 *
1253 * returns index on success and negative on failure.
1254 */
1255 static int32_t
ulp_flow_db_pc_db_idx_alloc(struct bnxt_ulp_context * ulp_ctxt,uint32_t tun_idx)1256 ulp_flow_db_pc_db_idx_alloc(struct bnxt_ulp_context *ulp_ctxt,
1257 uint32_t tun_idx)
1258 {
1259 struct bnxt_ulp_flow_db *flow_db;
1260 struct ulp_fdb_parent_child_db *p_pdb;
1261 uint32_t idx, free_idx = 0;
1262
1263 /* validate the arguments */
1264 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, tun_idx);
1265 if (!flow_db) {
1266 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1267 return -EINVAL;
1268 }
1269
1270 p_pdb = &flow_db->parent_child_db;
1271 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1272 if (p_pdb->parent_flow_tbl[idx].valid &&
1273 p_pdb->parent_flow_tbl[idx].tun_idx == tun_idx) {
1274 return idx;
1275 }
1276 if (!p_pdb->parent_flow_tbl[idx].valid && !free_idx)
1277 free_idx = idx + 1;
1278 }
1279 /* no free slots */
1280 if (!free_idx) {
1281 BNXT_TF_DBG(ERR, "parent child db is full\n");
1282 return -ENOMEM;
1283 }
1284
1285 free_idx -= 1;
1286 /* set the Fid in the parent child */
1287 p_pdb->parent_flow_tbl[free_idx].tun_idx = tun_idx;
1288 p_pdb->parent_flow_tbl[free_idx].valid = 1;
1289 return free_idx;
1290 }
1291
1292 /*
1293 * Free the entry in the parent-child database
1294 *
1295 * pc_entry [in] Ptr to parent child db entry
1296 *
1297 * returns none.
1298 */
1299 static void
ulp_flow_db_pc_db_entry_free(struct bnxt_ulp_context * ulp_ctxt,struct ulp_fdb_parent_info * pc_entry)1300 ulp_flow_db_pc_db_entry_free(struct bnxt_ulp_context *ulp_ctxt,
1301 struct ulp_fdb_parent_info *pc_entry)
1302 {
1303 struct bnxt_tun_cache_entry *tun_tbl;
1304 struct bnxt_ulp_flow_db *flow_db;
1305 uint64_t *tmp_bitset;
1306
1307 /* free the tunnel entry */
1308 tun_tbl = bnxt_ulp_cntxt_ptr2_tun_tbl_get(ulp_ctxt);
1309 if (tun_tbl)
1310 ulp_tunnel_offload_entry_clear(tun_tbl, pc_entry->tun_idx);
1311
1312 /* free the child bitset*/
1313 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1314 if (flow_db)
1315 memset(pc_entry->child_fid_bitset, 0,
1316 flow_db->parent_child_db.child_bitset_size);
1317
1318 /* free the contents */
1319 tmp_bitset = pc_entry->child_fid_bitset;
1320 memset(pc_entry, 0, sizeof(struct ulp_fdb_parent_info));
1321 pc_entry->child_fid_bitset = tmp_bitset;
1322 }
1323
1324 /*
1325 * Set or reset the parent flow in the parent-child database
1326 *
1327 * ulp_ctxt [in] Ptr to ulp_context
1328 * pc_idx [in] The index to parent child db
1329 * parent_fid [in] The flow id of the parent flow entry
1330 * set_flag [in] Use 1 for setting child, 0 to reset
1331 *
1332 * returns zero on success and negative on failure.
1333 */
1334 int32_t
ulp_flow_db_pc_db_parent_flow_set(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx,uint32_t parent_fid,uint32_t set_flag)1335 ulp_flow_db_pc_db_parent_flow_set(struct bnxt_ulp_context *ulp_ctxt,
1336 uint32_t pc_idx,
1337 uint32_t parent_fid,
1338 uint32_t set_flag)
1339 {
1340 struct ulp_fdb_parent_info *pc_entry;
1341 struct bnxt_ulp_flow_db *flow_db;
1342
1343 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1344 if (!flow_db) {
1345 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1346 return -EINVAL;
1347 }
1348
1349 /* check for fid validity */
1350 if (parent_fid >= flow_db->flow_tbl.num_flows || !parent_fid) {
1351 BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_fid);
1352 return -EINVAL;
1353 }
1354
1355 /* validate the arguments and parent child entry */
1356 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1357 if (!pc_entry) {
1358 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1359 return -EINVAL;
1360 }
1361
1362 if (set_flag) {
1363 pc_entry->parent_fid = parent_fid;
1364 } else {
1365 if (pc_entry->parent_fid != parent_fid)
1366 BNXT_TF_DBG(ERR, "Panic: invalid parent id\n");
1367 pc_entry->parent_fid = 0;
1368
1369 /* Free the parent child db entry if no user present */
1370 if (!pc_entry->f2_cnt)
1371 ulp_flow_db_pc_db_entry_free(ulp_ctxt, pc_entry);
1372 }
1373 return 0;
1374 }
1375
1376 /*
1377 * Set or reset the child flow in the parent-child database
1378 *
1379 * ulp_ctxt [in] Ptr to ulp_context
1380 * pc_idx [in] The index to parent child db
1381 * child_fid [in] The flow id of the child flow entry
1382 * set_flag [in] Use 1 for setting child, 0 to reset
1383 *
1384 * returns zero on success and negative on failure.
1385 */
1386 int32_t
ulp_flow_db_pc_db_child_flow_set(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx,uint32_t child_fid,uint32_t set_flag)1387 ulp_flow_db_pc_db_child_flow_set(struct bnxt_ulp_context *ulp_ctxt,
1388 uint32_t pc_idx,
1389 uint32_t child_fid,
1390 uint32_t set_flag)
1391 {
1392 struct ulp_fdb_parent_info *pc_entry;
1393 struct bnxt_ulp_flow_db *flow_db;
1394 uint32_t a_idx;
1395 uint64_t *t;
1396
1397 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1398 if (!flow_db) {
1399 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1400 return -EINVAL;
1401 }
1402
1403 /* check for fid validity */
1404 if (child_fid >= flow_db->flow_tbl.num_flows || !child_fid) {
1405 BNXT_TF_DBG(ERR, "Invalid child flow index %x\n", child_fid);
1406 return -EINVAL;
1407 }
1408
1409 /* validate the arguments and parent child entry */
1410 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1411 if (!pc_entry) {
1412 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1413 return -EINVAL;
1414 }
1415
1416 a_idx = child_fid / ULP_INDEX_BITMAP_SIZE;
1417 t = pc_entry->child_fid_bitset;
1418 if (set_flag) {
1419 ULP_INDEX_BITMAP_SET(t[a_idx], child_fid);
1420 pc_entry->f2_cnt++;
1421 } else {
1422 ULP_INDEX_BITMAP_RESET(t[a_idx], child_fid);
1423 if (pc_entry->f2_cnt)
1424 pc_entry->f2_cnt--;
1425 if (!pc_entry->f2_cnt && !pc_entry->parent_fid)
1426 ulp_flow_db_pc_db_entry_free(ulp_ctxt, pc_entry);
1427 }
1428 return 0;
1429 }
1430
1431 /*
1432 * Get the next child flow in the parent-child database
1433 *
1434 * ulp_ctxt [in] Ptr to ulp_context
1435 * parent_fid [in] The flow id of the parent flow entry
1436 * child_fid [in/out] The flow id of the child flow entry
1437 *
1438 * returns zero on success and negative on failure.
1439 * Pass child_fid as zero for first entry.
1440 */
1441 int32_t
ulp_flow_db_parent_child_flow_next_entry_get(struct bnxt_ulp_flow_db * flow_db,uint32_t parent_idx,uint32_t * child_fid)1442 ulp_flow_db_parent_child_flow_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
1443 uint32_t parent_idx,
1444 uint32_t *child_fid)
1445 {
1446 struct ulp_fdb_parent_child_db *p_pdb;
1447 uint32_t idx, s_idx, mod_fid;
1448 uint32_t next_fid = *child_fid;
1449 uint64_t *child_bitset;
1450 uint64_t bs;
1451
1452 /* check for fid validity */
1453 p_pdb = &flow_db->parent_child_db;
1454 if (parent_idx >= p_pdb->entries_count ||
1455 !p_pdb->parent_flow_tbl[parent_idx].parent_fid) {
1456 BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_idx);
1457 return -EINVAL;
1458 }
1459
1460 child_bitset = p_pdb->parent_flow_tbl[parent_idx].child_fid_bitset;
1461 do {
1462 /* increment the flow id to find the next valid flow id */
1463 next_fid++;
1464 if (next_fid >= flow_db->flow_tbl.num_flows)
1465 return -ENOENT;
1466 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1467 mod_fid = next_fid % ULP_INDEX_BITMAP_SIZE;
1468 s_idx = idx;
1469 while (!(bs = child_bitset[idx])) {
1470 idx++;
1471 if ((idx * ULP_INDEX_BITMAP_SIZE) >=
1472 flow_db->flow_tbl.num_flows)
1473 return -ENOENT;
1474 }
1475 /*
1476 * remove the previous bits in the bitset bs to find the
1477 * next non zero bit in the bitset. This needs to be done
1478 * only if the idx is same as he one you started.
1479 */
1480 if (s_idx == idx)
1481 bs &= (-1UL >> mod_fid);
1482 next_fid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
1483 if (*child_fid >= next_fid) {
1484 BNXT_TF_DBG(ERR, "Parent Child Database is corrupt\n");
1485 return -ENOENT;
1486 }
1487 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1488 } while (!ULP_INDEX_BITMAP_GET(child_bitset[idx], next_fid));
1489 *child_fid = next_fid;
1490 return 0;
1491 }
1492
1493 /*
1494 * Set the counter accumulation in the parent flow
1495 *
1496 * ulp_ctxt [in] Ptr to ulp_context
1497 * pc_idx [in] The parent child index of the parent flow entry
1498 *
1499 * returns index on success and negative on failure.
1500 */
1501 static int32_t
ulp_flow_db_parent_flow_count_accum_set(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx)1502 ulp_flow_db_parent_flow_count_accum_set(struct bnxt_ulp_context *ulp_ctxt,
1503 uint32_t pc_idx)
1504 {
1505 struct bnxt_ulp_flow_db *flow_db;
1506 struct ulp_fdb_parent_child_db *p_pdb;
1507
1508 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1509 if (!flow_db) {
1510 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1511 return -EINVAL;
1512 }
1513
1514 /* check for parent idx validity */
1515 p_pdb = &flow_db->parent_child_db;
1516 if (pc_idx >= p_pdb->entries_count ||
1517 !p_pdb->parent_flow_tbl[pc_idx].parent_fid) {
1518 BNXT_TF_DBG(ERR, "Invalid parent child index %x\n", pc_idx);
1519 return -EINVAL;
1520 }
1521
1522 p_pdb->parent_flow_tbl[pc_idx].counter_acc = 1;
1523 return 0;
1524 }
1525
1526 /*
1527 * Orphan the child flow entry
1528 * This is called only for child flows that have
1529 * BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW resource
1530 *
1531 * ulp_ctxt [in] Ptr to ulp_context
1532 * flow_type [in] Specify it is regular or default flow
1533 * fid [in] The index to the flow entry
1534 *
1535 * Returns 0 on success and negative on failure.
1536 */
1537 int32_t
ulp_flow_db_child_flow_reset(struct bnxt_ulp_context * ulp_ctxt,enum bnxt_ulp_fdb_type flow_type,uint32_t fid)1538 ulp_flow_db_child_flow_reset(struct bnxt_ulp_context *ulp_ctxt,
1539 enum bnxt_ulp_fdb_type flow_type,
1540 uint32_t fid)
1541 {
1542 struct bnxt_ulp_flow_db *flow_db;
1543 struct bnxt_ulp_flow_tbl *flow_tbl;
1544 struct ulp_fdb_resource_info *fid_res;
1545 uint32_t res_id = 0;
1546
1547 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1548 if (!flow_db) {
1549 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1550 return -EINVAL;
1551 }
1552
1553 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1554 BNXT_TF_DBG(ERR, "Invalid flow type\n");
1555 return -EINVAL;
1556 }
1557
1558 flow_tbl = &flow_db->flow_tbl;
1559 /* check for max flows */
1560 if (fid >= flow_tbl->num_flows || !fid) {
1561 BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
1562 return -EINVAL;
1563 }
1564
1565 /* check if the flow is active or not */
1566 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
1567 BNXT_TF_DBG(ERR, "flow does not exist\n");
1568 return -EINVAL;
1569 }
1570
1571 /* Iterate the resource to get the resource handle */
1572 res_id = fid;
1573 while (res_id) {
1574 fid_res = &flow_tbl->flow_resources[res_id];
1575 if (ulp_flow_db_resource_func_get(fid_res) ==
1576 BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW) {
1577 /* invalidate the resource details */
1578 fid_res->resource_hndl = 0;
1579 return 0;
1580 }
1581 res_id = 0;
1582 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1583 }
1584 /* failed */
1585 return -1;
1586 }
1587
1588 /*
1589 * Create parent flow in the parent flow tbl
1590 *
1591 * parms [in] Ptr to mapper params
1592 *
1593 * Returns 0 on success and negative on failure.
1594 */
1595 int32_t
ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms * parms)1596 ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms *parms)
1597 {
1598 struct ulp_flow_db_res_params fid_parms;
1599 uint32_t sub_typ = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT;
1600 struct ulp_flow_db_res_params res_params;
1601 int32_t pc_idx;
1602
1603 /* create or get the parent child database */
1604 pc_idx = ulp_flow_db_pc_db_idx_alloc(parms->ulp_ctx, parms->tun_idx);
1605 if (pc_idx < 0) {
1606 BNXT_TF_DBG(ERR, "Error in getting parent child db %x\n",
1607 parms->tun_idx);
1608 return -EINVAL;
1609 }
1610
1611 /* Update the parent fid */
1612 if (ulp_flow_db_pc_db_parent_flow_set(parms->ulp_ctx, pc_idx,
1613 parms->fid, 1)) {
1614 BNXT_TF_DBG(ERR, "Error in setting parent fid %x\n",
1615 parms->tun_idx);
1616 return -EINVAL;
1617 }
1618
1619 /* Add the parent details in the resource list of the flow */
1620 memset(&fid_parms, 0, sizeof(fid_parms));
1621 fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_PARENT_FLOW;
1622 fid_parms.resource_hndl = pc_idx;
1623 fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
1624 if (ulp_flow_db_resource_add(parms->ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
1625 parms->fid, &fid_parms)) {
1626 BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
1627 parms->fid);
1628 return -1;
1629 }
1630
1631 /* check of the flow has internal counter accumulation enabled */
1632 if (!ulp_flow_db_resource_params_get(parms->ulp_ctx,
1633 BNXT_ULP_FDB_TYPE_REGULAR,
1634 parms->fid,
1635 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1636 sub_typ,
1637 &res_params)) {
1638 /* Enable the counter accumulation in parent entry */
1639 if (ulp_flow_db_parent_flow_count_accum_set(parms->ulp_ctx,
1640 pc_idx)) {
1641 BNXT_TF_DBG(ERR, "Error in setting counter acc %x\n",
1642 parms->fid);
1643 return -1;
1644 }
1645 }
1646
1647 return 0;
1648 }
1649
1650 /*
1651 * Create child flow in the parent flow tbl
1652 *
1653 * parms [in] Ptr to mapper params
1654 *
1655 * Returns 0 on success and negative on failure.
1656 */
1657 int32_t
ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms * parms)1658 ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms *parms)
1659 {
1660 struct ulp_flow_db_res_params fid_parms;
1661 uint32_t sub_type = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT;
1662 enum bnxt_ulp_resource_func res_fun;
1663 struct ulp_flow_db_res_params res_p;
1664 int32_t rc, pc_idx;
1665
1666 /* create or get the parent child database */
1667 pc_idx = ulp_flow_db_pc_db_idx_alloc(parms->ulp_ctx, parms->tun_idx);
1668 if (pc_idx < 0) {
1669 BNXT_TF_DBG(ERR, "Error in getting parent child db %x\n",
1670 parms->tun_idx);
1671 return -1;
1672 }
1673
1674 /* create the parent flow entry in parent flow table */
1675 rc = ulp_flow_db_pc_db_child_flow_set(parms->ulp_ctx, pc_idx,
1676 parms->fid, 1);
1677 if (rc) {
1678 BNXT_TF_DBG(ERR, "Error in setting child fid %x\n", parms->fid);
1679 return rc;
1680 }
1681
1682 /* Add the parent details in the resource list of the flow */
1683 memset(&fid_parms, 0, sizeof(fid_parms));
1684 fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW;
1685 fid_parms.resource_hndl = pc_idx;
1686 fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
1687 rc = ulp_flow_db_resource_add(parms->ulp_ctx,
1688 BNXT_ULP_FDB_TYPE_REGULAR,
1689 parms->fid, &fid_parms);
1690 if (rc) {
1691 BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
1692 parms->fid);
1693 return rc;
1694 }
1695
1696 /* check if internal count action included for this flow.*/
1697 res_fun = BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE;
1698 rc = ulp_flow_db_resource_params_get(parms->ulp_ctx,
1699 BNXT_ULP_FDB_TYPE_REGULAR,
1700 parms->fid,
1701 res_fun,
1702 sub_type,
1703 &res_p);
1704 if (!rc) {
1705 /* update the counter manager to include parent fid */
1706 if (ulp_fc_mgr_cntr_parent_flow_set(parms->ulp_ctx,
1707 res_p.direction,
1708 res_p.resource_hndl,
1709 pc_idx)) {
1710 BNXT_TF_DBG(ERR, "Error in setting child %x\n",
1711 parms->fid);
1712 return -1;
1713 }
1714 }
1715
1716 /* return success */
1717 return 0;
1718 }
1719
1720 /*
1721 * Update the parent counters
1722 *
1723 * ulp_ctxt [in] Ptr to ulp_context
1724 * pc_idx [in] The parent flow entry idx
1725 * packet_count [in] - packet count
1726 * byte_count [in] - byte count
1727 *
1728 * returns 0 on success
1729 */
1730 int32_t
ulp_flow_db_parent_flow_count_update(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx,uint64_t packet_count,uint64_t byte_count)1731 ulp_flow_db_parent_flow_count_update(struct bnxt_ulp_context *ulp_ctxt,
1732 uint32_t pc_idx,
1733 uint64_t packet_count,
1734 uint64_t byte_count)
1735 {
1736 struct ulp_fdb_parent_info *pc_entry;
1737
1738 /* validate the arguments and get parent child entry */
1739 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1740 if (!pc_entry) {
1741 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1742 return -EINVAL;
1743 }
1744
1745 if (pc_entry->counter_acc) {
1746 pc_entry->pkt_count += packet_count;
1747 pc_entry->byte_count += byte_count;
1748 }
1749 return 0;
1750 }
1751
1752 /*
1753 * Get the parent accumulation counters
1754 *
1755 * ulp_ctxt [in] Ptr to ulp_context
1756 * pc_idx [in] The parent flow entry idx
1757 * packet_count [out] - packet count
1758 * byte_count [out] - byte count
1759 *
1760 * returns 0 on success
1761 */
1762 int32_t
ulp_flow_db_parent_flow_count_get(struct bnxt_ulp_context * ulp_ctxt,uint32_t pc_idx,uint64_t * packet_count,uint64_t * byte_count,uint8_t count_reset)1763 ulp_flow_db_parent_flow_count_get(struct bnxt_ulp_context *ulp_ctxt,
1764 uint32_t pc_idx, uint64_t *packet_count,
1765 uint64_t *byte_count, uint8_t count_reset)
1766 {
1767 struct ulp_fdb_parent_info *pc_entry;
1768
1769 /* validate the arguments and get parent child entry */
1770 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1771 if (!pc_entry) {
1772 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1773 return -EINVAL;
1774 }
1775
1776 if (pc_entry->counter_acc) {
1777 *packet_count = pc_entry->pkt_count;
1778 *byte_count = pc_entry->byte_count;
1779 if (count_reset) {
1780 pc_entry->pkt_count = 0;
1781 pc_entry->byte_count = 0;
1782 }
1783 }
1784 return 0;
1785 }
1786
1787 /*
1788 * reset the parent accumulation counters
1789 *
1790 * ulp_ctxt [in] Ptr to ulp_context
1791 *
1792 * returns none
1793 */
1794 void
ulp_flow_db_parent_flow_count_reset(struct bnxt_ulp_context * ulp_ctxt)1795 ulp_flow_db_parent_flow_count_reset(struct bnxt_ulp_context *ulp_ctxt)
1796 {
1797 struct bnxt_ulp_flow_db *flow_db;
1798 struct ulp_fdb_parent_child_db *p_pdb;
1799 uint32_t idx;
1800
1801 /* validate the arguments */
1802 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1803 if (!flow_db) {
1804 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1805 return;
1806 }
1807
1808 p_pdb = &flow_db->parent_child_db;
1809 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1810 if (p_pdb->parent_flow_tbl[idx].valid &&
1811 p_pdb->parent_flow_tbl[idx].counter_acc) {
1812 p_pdb->parent_flow_tbl[idx].pkt_count = 0;
1813 p_pdb->parent_flow_tbl[idx].byte_count = 0;
1814 }
1815 }
1816 }
1817
1818 /*
1819 * Set the shared bit for the flow db entry
1820 *
1821 * res [in] Ptr to fdb entry
1822 * shared [in] shared flag
1823 *
1824 * returns none
1825 */
ulp_flow_db_shared_session_set(struct ulp_flow_db_res_params * res,enum bnxt_ulp_shared_session shared)1826 void ulp_flow_db_shared_session_set(struct ulp_flow_db_res_params *res,
1827 enum bnxt_ulp_shared_session shared)
1828 {
1829 if (res && (shared & BNXT_ULP_SHARED_SESSION_YES))
1830 res->fdb_flags |= ULP_FDB_FLAG_SHARED_SESSION;
1831 }
1832