1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2021 Broadcom
6 #include <rte_malloc.h>
8 #include "bnxt_tf_common.h"
10 #include "ulp_template_struct.h"
11 #include "ulp_mapper.h"
12 #include "ulp_flow_db.h"
13 #include "ulp_fc_mgr.h"
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
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))
31 * Helper function to set the bit in the active flows
32 * No validation is done in this function.
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.
42 ulp_flow_db_active_flows_bit_set(struct bnxt_ulp_flow_db *flow_db,
43 enum bnxt_ulp_fdb_type flow_type,
47 struct bnxt_ulp_flow_tbl *f_tbl = &flow_db->flow_tbl;
48 uint32_t a_idx = idx / ULP_INDEX_BITMAP_SIZE;
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],
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],
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],
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],
72 * Helper function to check if given fid is active flow.
73 * No validation being done in this function.
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.
79 * returns 1 on set or 0 if not set.
82 ulp_flow_db_active_flows_bit_is_set(struct bnxt_ulp_flow_db *flow_db,
83 enum bnxt_ulp_fdb_type flow_type,
86 struct bnxt_ulp_flow_tbl *f_tbl = &flow_db->flow_tbl;
87 uint32_t a_idx = idx / ULP_INDEX_BITMAP_SIZE;
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);
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:
105 static inline enum tf_dir
106 ulp_flow_db_resource_dir_get(struct ulp_fdb_resource_info *res_info)
108 return ((res_info->nxt_resource_idx & ULP_FLOW_DB_RES_DIR_MASK) >>
109 ULP_FLOW_DB_RES_DIR_BIT);
113 ulp_flow_db_resource_func_get(struct ulp_fdb_resource_info *res_info)
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);
126 * Helper function to copy the resource params to resource info
127 * No validation being done in this function.
129 * resource_info [out] Ptr to resource information
130 * params [in] The input params from the caller
134 ulp_flow_db_res_params_to_info(struct ulp_fdb_resource_info *resource_info,
135 struct ulp_flow_db_res_params *params)
137 uint32_t resource_func;
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);
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;
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;
161 resource_info->resource_em_handle = params->resource_hndl;
166 * Helper function to copy the resource params to resource info
167 * No validation being done in this function.
169 * resource_info [in] Ptr to resource information
170 * params [out] The output params to the caller
175 ulp_flow_db_res_info_to_params(struct ulp_fdb_resource_info *resource_info,
176 struct ulp_flow_db_res_params *params)
178 memset(params, 0, sizeof(struct ulp_flow_db_res_params));
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);
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;
195 * Helper function to allocate the flow table and initialize
196 * the stack for allocation operations.
198 * flow_db [in] Ptr to flow database structure
200 * Returns 0 on success or negative number on failure.
203 ulp_flow_db_alloc_resource(struct bnxt_ulp_flow_db *flow_db)
206 struct bnxt_ulp_flow_tbl *flow_tbl;
209 flow_tbl = &flow_db->flow_tbl;
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);
215 if (!flow_tbl->flow_resources) {
216 BNXT_TF_DBG(ERR, "Failed to alloc memory for flow table\n");
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");
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");
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");
241 /* Initialize the stack table. */
242 for (idx = 0; idx < flow_tbl->num_resources; idx++)
243 flow_tbl->flow_tbl_stack[idx] = idx;
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;
253 * Helper function to deallocate the flow table.
255 * flow_db [in] Ptr to flow database structure
260 ulp_flow_db_dealloc_resource(struct bnxt_ulp_flow_db *flow_db)
262 struct bnxt_ulp_flow_tbl *flow_tbl = &flow_db->flow_tbl;
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;
269 if (flow_tbl->active_dflt_flows) {
270 rte_free(flow_tbl->active_dflt_flows);
271 flow_tbl->active_dflt_flows = NULL;
274 if (flow_tbl->flow_tbl_stack) {
275 rte_free(flow_tbl->flow_tbl_stack);
276 flow_tbl->flow_tbl_stack = NULL;
279 if (flow_tbl->flow_resources) {
280 rte_free(flow_tbl->flow_resources);
281 flow_tbl->flow_resources = NULL;
286 * Helper function to add function id to the flow table
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
295 ulp_flow_db_func_id_set(struct bnxt_ulp_flow_db *flow_db,
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");
307 * Initialize the parent-child database. Memory is allocated in this
308 * call and assigned to the database
310 * flow_db [in] Ptr to flow table
311 * num_entries[in] - number of entries to allocate
313 * Returns 0 on success or negative number on failure.
316 ulp_flow_db_parent_tbl_init(struct bnxt_ulp_flow_db *flow_db,
317 uint32_t num_entries)
319 struct ulp_fdb_parent_child_db *p_db;
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;
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) {
338 "Failed to allocate memory fdb parent flow tbl\n");
341 size = p_db->child_bitset_size * p_db->entries_count;
344 * allocate the big chunk of memory to be statically carved into
345 * child_fid_bitset pointer.
347 p_db->parent_flow_tbl_mem = rte_zmalloc("fdb parent flow tbl mem",
349 ULP_BUFFER_ALIGN_64_BYTE);
350 if (!p_db->parent_flow_tbl_mem) {
352 "Failed to allocate memory fdb parent flow mem\n");
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];
367 * Deinitialize the parent-child database. Memory is deallocated in
368 * this call and all flows should have been purged before this
371 * flow_db [in] Ptr to flow table
376 ulp_flow_db_parent_tbl_deinit(struct bnxt_ulp_flow_db *flow_db)
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;
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;
390 * Initialize the flow database. Memory is allocated in this
391 * call and assigned to the flow database.
393 * ulp_ctxt [in] Ptr to ulp context
395 * Returns 0 on success or negative number on failure.
398 ulp_flow_db_init(struct bnxt_ulp_context *ulp_ctxt)
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;
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");
412 dparms = bnxt_ulp_device_params_get(dev_id);
414 BNXT_TF_DBG(ERR, "could not fetch the device params\n");
418 flow_db = rte_zmalloc("bnxt_ulp_flow_db",
419 sizeof(struct bnxt_ulp_flow_db), 0);
422 "Failed to allocate memory for flow table ptr\n");
426 /* Attach the flow database to the ulp context. */
427 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, flow_db);
429 /* Determine the number of flows based on EM type */
430 if (bnxt_ulp_cntxt_mem_type_get(ulp_ctxt, &mtype))
433 if (mtype == BNXT_ULP_FLOW_MEM_TYPE_INT)
434 num_flows = dparms->int_flow_db_num_entries;
436 num_flows = dparms->ext_flow_db_num_entries;
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);
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);
449 /* Allocate the resource for the flow table. */
450 if (ulp_flow_db_alloc_resource(flow_db))
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) {
461 "Failed to allocate mem for flow table func id\n");
464 /* initialize the parent child database */
465 if (ulp_flow_db_parent_tbl_init(flow_db,
466 dparms->fdb_parent_flow_entries)) {
468 "Failed to allocate mem for parent child db\n");
472 /* All good so return. */
473 BNXT_TF_DBG(DEBUG, "FlowDB initialized with %d flows.\n",
474 flow_tbl->num_flows);
477 ulp_flow_db_deinit(ulp_ctxt);
482 * Deinitialize the flow database. Memory is deallocated in
483 * this call and all flows should have been purged before this
486 * ulp_ctxt [in] Ptr to ulp context
488 * Returns 0 on success.
491 ulp_flow_db_deinit(struct bnxt_ulp_context *ulp_ctxt)
493 struct bnxt_ulp_flow_db *flow_db;
495 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
499 /* Detach the flow database from the ulp context. */
500 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, NULL);
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);
512 * Allocate the flow database entry
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
519 * returns 0 on success and negative on failure.
522 ulp_flow_db_fid_alloc(struct bnxt_ulp_context *ulp_ctxt,
523 enum bnxt_ulp_fdb_type flow_type,
527 struct bnxt_ulp_flow_db *flow_db;
528 struct bnxt_ulp_flow_tbl *flow_tbl;
530 *fid = 0; /* Initialize fid to invalid value */
531 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
533 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
537 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
538 BNXT_TF_DBG(ERR, "Invalid flow type\n");
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");
548 if (flow_tbl->tail_index <= (flow_tbl->head_index + 1)) {
549 BNXT_TF_DBG(ERR, "Flow database has reached max resources\n");
552 *fid = flow_tbl->flow_tbl_stack[flow_tbl->head_index];
553 flow_tbl->head_index++;
555 /* Set the flow type */
556 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, *fid, 1);
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);
567 * Allocate the flow database entry.
568 * The params->critical_resource has to be set to 0 to allocate a new resource.
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
575 * returns 0 on success and negative on failure.
578 ulp_flow_db_resource_add(struct bnxt_ulp_context *ulp_ctxt,
579 enum bnxt_ulp_fdb_type flow_type,
581 struct ulp_flow_db_res_params *params)
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;
589 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
591 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
595 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
596 BNXT_TF_DBG(ERR, "Invalid flow type\n");
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");
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);
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");
618 fid_resource = &flow_tbl->flow_resources[fid];
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;
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--;
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,
641 /* critical resource. Just update the fid resource */
642 ulp_flow_db_res_params_to_info(fid_resource, params);
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);
655 ulp_fc_mgr_cntr_set(ulp_ctxt, params->direction,
656 params->resource_hndl);
658 if (!ulp_fc_mgr_thread_isstarted(ulp_ctxt))
659 ulp_fc_mgr_thread_start(ulp_ctxt);
662 /* all good, return success */
667 * Free the flow database entry.
668 * The params->critical_resource has to be set to 1 to free the first resource.
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.
676 * Returns 0 on success and negative on failure.
679 ulp_flow_db_resource_del(struct bnxt_ulp_context *ulp_ctxt,
680 enum bnxt_ulp_fdb_type flow_type,
682 struct ulp_flow_db_res_params *params)
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;
689 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
691 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
695 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
696 BNXT_TF_DBG(ERR, "Invalid flow type\n");
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);
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);
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);
719 /* reached end of resources */
722 nxt_resource = &flow_tbl->flow_resources[nxt_idx];
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);
729 /* update the contents to be given to caller */
730 ulp_flow_db_res_info_to_params(nxt_resource, params);
732 /* Delete the nxt_resource */
733 memset(nxt_resource, 0, sizeof(struct ulp_fdb_resource_info));
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");
741 flow_tbl->flow_tbl_stack[flow_tbl->tail_index] = nxt_idx;
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,
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
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);
764 /* all good, return success */
769 * Free the flow database entry
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
775 * returns 0 on success and negative on failure.
778 ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt,
779 enum bnxt_ulp_fdb_type flow_type,
782 struct bnxt_ulp_flow_tbl *flow_tbl;
783 struct bnxt_ulp_flow_db *flow_db;
785 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
787 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
791 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
792 BNXT_TF_DBG(ERR, "Invalid flow type\n");
796 flow_tbl = &flow_db->flow_tbl;
798 /* check for limits of fid */
799 if (fid >= flow_tbl->num_flows || !fid) {
800 BNXT_TF_DBG(ERR, "Invalid flow index\n");
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);
809 flow_tbl->head_index--;
810 if (!flow_tbl->head_index) {
811 BNXT_TF_DBG(ERR, "FlowDB: Head Ptr is zero\n");
815 flow_tbl->flow_tbl_stack[flow_tbl->head_index] = fid;
817 /* Clear the flows bitmap */
818 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, fid, 0);
820 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
821 ulp_flow_db_func_id_set(flow_db, fid, 0);
823 /* all good, return success */
828 *Get the flow database entry details
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.
836 * returns 0 on success and negative on failure.
839 ulp_flow_db_resource_get(struct bnxt_ulp_context *ulp_ctxt,
840 enum bnxt_ulp_fdb_type flow_type,
843 struct ulp_flow_db_res_params *params)
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;
849 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
851 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
855 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
856 BNXT_TF_DBG(ERR, "Invalid flow type\n");
860 flow_tbl = &flow_db->flow_tbl;
862 /* check for limits of fid */
863 if (fid >= flow_tbl->num_flows || !fid) {
864 BNXT_TF_DBG(ERR, "Invalid flow index\n");
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");
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);
880 nxt_resource = &flow_tbl->flow_resources[*nxt_idx];
881 ulp_flow_db_res_info_to_params(nxt_resource, params);
883 ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
884 nxt_resource->nxt_resource_idx);
887 /* all good, return success */
892 * Get the flow database entry iteratively
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
898 * returns 0 on success and negative on failure.
901 ulp_flow_db_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
902 enum bnxt_ulp_fdb_type flow_type,
905 uint32_t lfid = *fid;
906 uint32_t idx, s_idx, mod_fid;
908 uint64_t *active_flows;
909 struct bnxt_ulp_flow_tbl *flowtbl = &flow_db->flow_tbl;
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;
916 BNXT_TF_DBG(ERR, "Invalid flow type %x\n", flow_type);
921 /* increment the flow id to find the next valid flow id */
923 if (lfid >= flowtbl->num_flows)
925 idx = lfid / ULP_INDEX_BITMAP_SIZE;
926 mod_fid = lfid % ULP_INDEX_BITMAP_SIZE;
928 while (!(bs = active_flows[idx])) {
930 if ((idx * ULP_INDEX_BITMAP_SIZE) >= flowtbl->num_flows)
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.
939 bs &= (-1UL >> mod_fid);
940 lfid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
942 BNXT_TF_DBG(ERR, "Flow Database is corrupt\n");
945 } while (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type,
948 /* all good, return success */
954 * Flush all flows in the flow database.
956 * ulp_ctxt [in] Ptr to ulp context
957 * flow_type [in] - specify default or regular
959 * returns 0 on success or negative number on failure
962 ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
963 enum bnxt_ulp_fdb_type flow_type)
966 struct bnxt_ulp_flow_db *flow_db;
969 BNXT_TF_DBG(ERR, "Invalid Argument\n");
973 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
975 BNXT_TF_DBG(ERR, "Flow database not found\n");
978 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
979 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
983 while (!ulp_flow_db_next_entry_get(flow_db, flow_type, &fid))
984 ulp_mapper_resources_free(ulp_ctx, flow_type, fid);
986 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
992 * Flush all flows in the flow database that belong to a device function.
994 * ulp_ctxt [in] Ptr to ulp context
995 * func_id [in] - The port function id
997 * returns 0 on success or negative number on failure
1000 ulp_flow_db_function_flow_flush(struct bnxt_ulp_context *ulp_ctx,
1003 uint32_t flow_id = 0;
1004 struct bnxt_ulp_flow_db *flow_db;
1006 if (!ulp_ctx || !func_id) {
1007 BNXT_TF_DBG(ERR, "Invalid Argument\n");
1011 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1013 BNXT_TF_DBG(ERR, "Flow database not found\n");
1016 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
1017 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
1021 while (!ulp_flow_db_next_entry_get(flow_db, BNXT_ULP_FDB_TYPE_REGULAR,
1023 if (flow_db->func_id_tbl[flow_id] == func_id)
1024 ulp_mapper_resources_free(ulp_ctx,
1025 BNXT_ULP_FDB_TYPE_REGULAR,
1028 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
1033 * Flush all flows in the flow database that are associated with the session.
1035 * ulp_ctxt [in] Ptr to ulp context
1037 * returns 0 on success or negative number on failure
1040 ulp_flow_db_session_flow_flush(struct bnxt_ulp_context *ulp_ctx)
1043 * TBD: Tf core implementation of FW session flush shall change this
1046 return ulp_flow_db_flush_flows(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR);
1050 * Check that flow id matches the function id or not
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.
1056 * returns true on success or false on failure
1059 ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
1063 struct bnxt_ulp_flow_db *flow_db;
1065 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1067 BNXT_TF_DBG(ERR, "Flow database not found\n");
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)
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
1088 ulp_flow_db_resource_params_get(struct bnxt_ulp_context *ulp_ctx,
1089 enum bnxt_ulp_fdb_type flow_type,
1091 uint32_t resource_func,
1092 uint32_t res_subtype,
1093 struct ulp_flow_db_res_params *params)
1095 struct bnxt_ulp_flow_db *flow_db;
1096 struct bnxt_ulp_flow_tbl *flow_tbl;
1097 struct ulp_fdb_resource_info *fid_res;
1100 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1102 BNXT_TF_DBG(ERR, "Flow database not found\n");
1107 BNXT_TF_DBG(ERR, "invalid argument\n");
1111 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1112 BNXT_TF_DBG(ERR, "Invalid flow type\n");
1116 flow_tbl = &flow_db->flow_tbl;
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");
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");
1129 /* Iterate the resource to get the resource handle */
1131 memset(params, 0, sizeof(struct ulp_flow_db_res_params));
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,
1142 } else if (resource_func ==
1143 BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
1144 ulp_flow_db_res_info_to_params(fid_res,
1150 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1156 * Api to get the cfa action pointer from a flow.
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
1162 * returns 0 on success
1165 ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context *ulp_ctx,
1167 uint16_t *cfa_action)
1169 uint8_t sub_typ = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_VFR_CFA_ACTION;
1170 struct ulp_flow_db_res_params params;
1173 rc = ulp_flow_db_resource_params_get(ulp_ctx,
1174 BNXT_ULP_FDB_TYPE_DEFAULT,
1176 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1179 BNXT_TF_DBG(INFO, "CFA Action ptr not found for flow id %u\n",
1183 *cfa_action = params.resource_hndl;
1187 /* internal validation function for parent flow tbl */
1188 static struct ulp_fdb_parent_info *
1189 ulp_flow_db_pc_db_entry_get(struct bnxt_ulp_context *ulp_ctxt,
1192 struct bnxt_ulp_flow_db *flow_db;
1194 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1196 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1200 /* check for max flows */
1201 if (pc_idx >= BNXT_ULP_MAX_TUN_CACHE_ENTRIES) {
1202 BNXT_TF_DBG(ERR, "Invalid tunnel index\n");
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");
1211 if (!flow_db->parent_child_db.parent_flow_tbl[pc_idx].valid) {
1212 BNXT_TF_DBG(ERR, "Not a valid tunnel index\n");
1216 return &flow_db->parent_child_db.parent_flow_tbl[pc_idx];
1219 /* internal validation function for parent flow tbl */
1220 static struct bnxt_ulp_flow_db *
1221 ulp_flow_db_parent_arg_validation(struct bnxt_ulp_context *ulp_ctxt,
1224 struct bnxt_ulp_flow_db *flow_db;
1226 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1228 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1232 /* check for max flows */
1233 if (tun_idx >= BNXT_ULP_MAX_TUN_CACHE_ENTRIES) {
1234 BNXT_TF_DBG(ERR, "Invalid tunnel index\n");
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");
1248 * Allocate the entry in the parent-child database
1250 * ulp_ctxt [in] Ptr to ulp_context
1251 * tun_idx [in] The tunnel index of the flow entry
1253 * returns index on success and negative on failure.
1256 ulp_flow_db_pc_db_idx_alloc(struct bnxt_ulp_context *ulp_ctxt,
1259 struct bnxt_ulp_flow_db *flow_db;
1260 struct ulp_fdb_parent_child_db *p_pdb;
1261 uint32_t idx, free_idx = 0;
1263 /* validate the arguments */
1264 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, tun_idx);
1266 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
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) {
1276 if (!p_pdb->parent_flow_tbl[idx].valid && !free_idx)
1281 BNXT_TF_DBG(ERR, "parent child db is full\n");
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;
1293 * Free the entry in the parent-child database
1295 * pc_entry [in] Ptr to parent child db entry
1300 ulp_flow_db_pc_db_entry_free(struct bnxt_ulp_context *ulp_ctxt,
1301 struct ulp_fdb_parent_info *pc_entry)
1303 struct bnxt_tun_cache_entry *tun_tbl;
1304 struct bnxt_ulp_flow_db *flow_db;
1305 uint64_t *tmp_bitset;
1307 /* free the tunnel entry */
1308 tun_tbl = bnxt_ulp_cntxt_ptr2_tun_tbl_get(ulp_ctxt);
1310 ulp_tunnel_offload_entry_clear(tun_tbl, pc_entry->tun_idx);
1312 /* free the child bitset*/
1313 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1315 memset(pc_entry->child_fid_bitset, 0,
1316 flow_db->parent_child_db.child_bitset_size);
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;
1325 * Set or reset the parent flow in the parent-child database
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
1332 * returns zero on success and negative on failure.
1335 ulp_flow_db_pc_db_parent_flow_set(struct bnxt_ulp_context *ulp_ctxt,
1337 uint32_t parent_fid,
1340 struct ulp_fdb_parent_info *pc_entry;
1341 struct bnxt_ulp_flow_db *flow_db;
1343 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1345 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
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);
1355 /* validate the arguments and parent child entry */
1356 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1358 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1363 pc_entry->parent_fid = parent_fid;
1365 if (pc_entry->parent_fid != parent_fid)
1366 BNXT_TF_DBG(ERR, "Panic: invalid parent id\n");
1367 pc_entry->parent_fid = 0;
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);
1377 * Set or reset the child flow in the parent-child database
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
1384 * returns zero on success and negative on failure.
1387 ulp_flow_db_pc_db_child_flow_set(struct bnxt_ulp_context *ulp_ctxt,
1392 struct ulp_fdb_parent_info *pc_entry;
1393 struct bnxt_ulp_flow_db *flow_db;
1397 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1399 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
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);
1409 /* validate the arguments and parent child entry */
1410 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1412 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1416 a_idx = child_fid / ULP_INDEX_BITMAP_SIZE;
1417 t = pc_entry->child_fid_bitset;
1419 ULP_INDEX_BITMAP_SET(t[a_idx], child_fid);
1422 ULP_INDEX_BITMAP_RESET(t[a_idx], child_fid);
1423 if (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);
1432 * Get the next child flow in the parent-child database
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
1438 * returns zero on success and negative on failure.
1439 * Pass child_fid as zero for first entry.
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)
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;
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);
1460 child_bitset = p_pdb->parent_flow_tbl[parent_idx].child_fid_bitset;
1462 /* increment the flow id to find the next valid flow id */
1464 if (next_fid >= flow_db->flow_tbl.num_flows)
1466 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1467 mod_fid = next_fid % ULP_INDEX_BITMAP_SIZE;
1469 while (!(bs = child_bitset[idx])) {
1471 if ((idx * ULP_INDEX_BITMAP_SIZE) >=
1472 flow_db->flow_tbl.num_flows)
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.
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");
1487 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1488 } while (!ULP_INDEX_BITMAP_GET(child_bitset[idx], next_fid));
1489 *child_fid = next_fid;
1494 * Set the counter accumulation in the parent flow
1496 * ulp_ctxt [in] Ptr to ulp_context
1497 * pc_idx [in] The parent child index of the parent flow entry
1499 * returns index on success and negative on failure.
1502 ulp_flow_db_parent_flow_count_accum_set(struct bnxt_ulp_context *ulp_ctxt,
1505 struct bnxt_ulp_flow_db *flow_db;
1506 struct ulp_fdb_parent_child_db *p_pdb;
1508 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1510 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
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);
1522 p_pdb->parent_flow_tbl[pc_idx].counter_acc = 1;
1527 * Orphan the child flow entry
1528 * This is called only for child flows that have
1529 * BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW resource
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
1535 * Returns 0 on success and negative on failure.
1538 ulp_flow_db_child_flow_reset(struct bnxt_ulp_context *ulp_ctxt,
1539 enum bnxt_ulp_fdb_type flow_type,
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;
1547 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1549 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1553 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1554 BNXT_TF_DBG(ERR, "Invalid flow type\n");
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);
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");
1571 /* Iterate the resource to get the resource handle */
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;
1582 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1589 * Create parent flow in the parent flow tbl
1591 * parms [in] Ptr to mapper params
1593 * Returns 0 on success and negative on failure.
1596 ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms *parms)
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;
1603 /* create or get the parent child database */
1604 pc_idx = ulp_flow_db_pc_db_idx_alloc(parms->ulp_ctx, parms->tun_idx);
1606 BNXT_TF_DBG(ERR, "Error in getting parent child db %x\n",
1611 /* Update the parent fid */
1612 if (ulp_flow_db_pc_db_parent_flow_set(parms->ulp_ctx, pc_idx,
1614 BNXT_TF_DBG(ERR, "Error in setting parent fid %x\n",
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",
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,
1635 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1638 /* Enable the counter accumulation in parent entry */
1639 if (ulp_flow_db_parent_flow_count_accum_set(parms->ulp_ctx,
1641 BNXT_TF_DBG(ERR, "Error in setting counter acc %x\n",
1651 * Create child flow in the parent flow tbl
1653 * parms [in] Ptr to mapper params
1655 * Returns 0 on success and negative on failure.
1658 ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms *parms)
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;
1666 /* create or get the parent child database */
1667 pc_idx = ulp_flow_db_pc_db_idx_alloc(parms->ulp_ctx, parms->tun_idx);
1669 BNXT_TF_DBG(ERR, "Error in getting parent child db %x\n",
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,
1678 BNXT_TF_DBG(ERR, "Error in setting child fid %x\n", parms->fid);
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);
1691 BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
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,
1705 /* update the counter manager to include parent fid */
1706 if (ulp_fc_mgr_cntr_parent_flow_set(parms->ulp_ctx,
1708 res_p.resource_hndl,
1710 BNXT_TF_DBG(ERR, "Error in setting child %x\n",
1716 /* return success */
1721 * Update the parent counters
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
1728 * returns 0 on success
1731 ulp_flow_db_parent_flow_count_update(struct bnxt_ulp_context *ulp_ctxt,
1733 uint64_t packet_count,
1734 uint64_t byte_count)
1736 struct ulp_fdb_parent_info *pc_entry;
1738 /* validate the arguments and get parent child entry */
1739 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1741 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1745 if (pc_entry->counter_acc) {
1746 pc_entry->pkt_count += packet_count;
1747 pc_entry->byte_count += byte_count;
1753 * Get the parent accumulation counters
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
1760 * returns 0 on success
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)
1767 struct ulp_fdb_parent_info *pc_entry;
1769 /* validate the arguments and get parent child entry */
1770 pc_entry = ulp_flow_db_pc_db_entry_get(ulp_ctxt, pc_idx);
1772 BNXT_TF_DBG(ERR, "failed to get the parent child entry\n");
1776 if (pc_entry->counter_acc) {
1777 *packet_count = pc_entry->pkt_count;
1778 *byte_count = pc_entry->byte_count;
1780 pc_entry->pkt_count = 0;
1781 pc_entry->byte_count = 0;
1788 * reset the parent accumulation counters
1790 * ulp_ctxt [in] Ptr to ulp_context
1795 ulp_flow_db_parent_flow_count_reset(struct bnxt_ulp_context *ulp_ctxt)
1797 struct bnxt_ulp_flow_db *flow_db;
1798 struct ulp_fdb_parent_child_db *p_pdb;
1801 /* validate the arguments */
1802 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1804 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
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;
1819 * Set the shared bit for the flow db entry
1821 * res [in] Ptr to fdb entry
1822 * shared [in] shared flag
1826 void ulp_flow_db_shared_session_set(struct ulp_flow_db_res_params *res,
1827 enum bnxt_ulp_shared_session shared)
1829 if (res && (shared & BNXT_ULP_SHARED_SESSION_YES))
1830 res->fdb_flags |= ULP_FDB_FLAG_SHARED_SESSION;