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 reource 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;
389 /* internal validation function for parent flow tbl */
390 static struct bnxt_ulp_flow_db *
391 ulp_flow_db_parent_arg_validation(struct bnxt_ulp_context *ulp_ctxt,
394 struct bnxt_ulp_flow_db *flow_db;
396 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
398 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
402 /* check for max flows */
403 if (fid >= flow_db->flow_tbl.num_flows || !fid) {
404 BNXT_TF_DBG(ERR, "Invalid flow index\n");
408 /* No support for parent child db then just exit */
409 if (!flow_db->parent_child_db.entries_count) {
410 BNXT_TF_DBG(ERR, "parent child db not supported\n");
418 * Set the tunnel index in the parent flow
420 * ulp_ctxt [in] Ptr to ulp_context
421 * parent_idx [in] The parent index of the parent flow entry
423 * returns index on success and negative on failure.
426 ulp_flow_db_parent_tun_idx_set(struct bnxt_ulp_context *ulp_ctxt,
427 uint32_t parent_idx, uint8_t tun_idx)
429 struct bnxt_ulp_flow_db *flow_db;
430 struct ulp_fdb_parent_child_db *p_pdb;
432 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
434 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
438 /* check for parent idx validity */
439 p_pdb = &flow_db->parent_child_db;
440 if (parent_idx >= p_pdb->entries_count ||
441 !p_pdb->parent_flow_tbl[parent_idx].parent_fid) {
442 BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_idx);
446 p_pdb->parent_flow_tbl[parent_idx].tun_idx = tun_idx;
451 * Get the tunnel index from the parent flow
453 * ulp_ctxt [in] Ptr to ulp_context
454 * parent_fid [in] The flow id of the parent flow entry
456 * returns 0 if counter accum is set else -1.
459 ulp_flow_db_parent_tun_idx_get(struct bnxt_ulp_context *ulp_ctxt,
460 uint32_t parent_fid, uint8_t *tun_idx)
462 struct bnxt_ulp_flow_db *flow_db;
463 struct ulp_fdb_parent_child_db *p_pdb;
466 /* validate the arguments */
467 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
469 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
473 p_pdb = &flow_db->parent_child_db;
474 for (idx = 0; idx < p_pdb->entries_count; idx++) {
475 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
476 *tun_idx = p_pdb->parent_flow_tbl[idx].tun_idx;
485 * Initialize the flow database. Memory is allocated in this
486 * call and assigned to the flow database.
488 * ulp_ctxt [in] Ptr to ulp context
490 * Returns 0 on success or negative number on failure.
493 ulp_flow_db_init(struct bnxt_ulp_context *ulp_ctxt)
495 struct bnxt_ulp_device_params *dparms;
496 struct bnxt_ulp_flow_tbl *flow_tbl;
497 struct bnxt_ulp_flow_db *flow_db;
498 uint32_t dev_id, num_flows;
499 enum bnxt_ulp_flow_mem_type mtype;
501 /* Get the dev specific number of flows that needed to be supported. */
502 if (bnxt_ulp_cntxt_dev_id_get(ulp_ctxt, &dev_id)) {
503 BNXT_TF_DBG(ERR, "Invalid device id\n");
507 dparms = bnxt_ulp_device_params_get(dev_id);
509 BNXT_TF_DBG(ERR, "could not fetch the device params\n");
513 flow_db = rte_zmalloc("bnxt_ulp_flow_db",
514 sizeof(struct bnxt_ulp_flow_db), 0);
517 "Failed to allocate memory for flow table ptr\n");
521 /* Attach the flow database to the ulp context. */
522 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, flow_db);
524 /* Determine the number of flows based on EM type */
525 if (bnxt_ulp_cntxt_mem_type_get(ulp_ctxt, &mtype))
528 if (mtype == BNXT_ULP_FLOW_MEM_TYPE_INT)
529 num_flows = dparms->int_flow_db_num_entries;
531 num_flows = dparms->ext_flow_db_num_entries;
533 /* Populate the regular flow table limits. */
534 flow_tbl = &flow_db->flow_tbl;
535 flow_tbl->num_flows = num_flows + 1;
536 flow_tbl->num_resources = ((num_flows + 1) *
537 dparms->num_resources_per_flow);
539 /* Include the default flow table limits. */
540 flow_tbl->num_flows += (BNXT_FLOW_DB_DEFAULT_NUM_FLOWS + 1);
541 flow_tbl->num_resources += ((BNXT_FLOW_DB_DEFAULT_NUM_FLOWS + 1) *
542 BNXT_FLOW_DB_DEFAULT_NUM_RESOURCES);
544 /* Allocate the resource for the flow table. */
545 if (ulp_flow_db_alloc_resource(flow_db))
548 /* add 1 since we are not using index 0 for flow id */
549 flow_db->func_id_tbl_size = flow_tbl->num_flows + 1;
550 /* Allocate the function Id table */
551 flow_db->func_id_tbl = rte_zmalloc("bnxt_ulp_flow_db_func_id_table",
552 flow_db->func_id_tbl_size *
553 sizeof(uint16_t), 0);
554 if (!flow_db->func_id_tbl) {
556 "Failed to allocate mem for flow table func id\n");
559 /* initialize the parent child database */
560 if (ulp_flow_db_parent_tbl_init(flow_db,
561 dparms->fdb_parent_flow_entries)) {
563 "Failed to allocate mem for parent child db\n");
567 /* All good so return. */
568 BNXT_TF_DBG(INFO, "FlowDB initialized with %d flows.\n",
569 flow_tbl->num_flows);
572 ulp_flow_db_deinit(ulp_ctxt);
577 * Deinitialize the flow database. Memory is deallocated in
578 * this call and all flows should have been purged before this
581 * ulp_ctxt [in] Ptr to ulp context
583 * Returns 0 on success.
586 ulp_flow_db_deinit(struct bnxt_ulp_context *ulp_ctxt)
588 struct bnxt_ulp_flow_db *flow_db;
590 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
594 /* Detach the flow database from the ulp context. */
595 bnxt_ulp_cntxt_ptr2_flow_db_set(ulp_ctxt, NULL);
597 /* Free up all the memory. */
598 ulp_flow_db_parent_tbl_deinit(flow_db);
599 ulp_flow_db_dealloc_resource(flow_db);
600 rte_free(flow_db->func_id_tbl);
607 * Allocate the flow database entry
609 * ulp_ctxt [in] Ptr to ulp_context
610 * flow_type [in] - specify default or regular
611 * func_id [in].function id of the ingress port
612 * fid [out] The index to the flow entry
614 * returns 0 on success and negative on failure.
617 ulp_flow_db_fid_alloc(struct bnxt_ulp_context *ulp_ctxt,
618 enum bnxt_ulp_fdb_type flow_type,
622 struct bnxt_ulp_flow_db *flow_db;
623 struct bnxt_ulp_flow_tbl *flow_tbl;
625 *fid = 0; /* Initialize fid to invalid value */
626 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
628 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
632 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
633 BNXT_TF_DBG(ERR, "Invalid flow type\n");
637 flow_tbl = &flow_db->flow_tbl;
638 /* check for max flows */
639 if (flow_tbl->num_flows <= flow_tbl->head_index) {
640 BNXT_TF_DBG(ERR, "Flow database has reached max flows\n");
643 if (flow_tbl->tail_index <= (flow_tbl->head_index + 1)) {
644 BNXT_TF_DBG(ERR, "Flow database has reached max resources\n");
647 *fid = flow_tbl->flow_tbl_stack[flow_tbl->head_index];
648 flow_tbl->head_index++;
650 /* Set the flow type */
651 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, *fid, 1);
653 /* function id update is only valid for regular flow table */
654 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
655 ulp_flow_db_func_id_set(flow_db, *fid, func_id);
662 * Allocate the flow database entry.
663 * The params->critical_resource has to be set to 0 to allocate a new resource.
665 * ulp_ctxt [in] Ptr to ulp_context
666 * flow_type [in] Specify it is regular or default flow
667 * fid [in] The index to the flow entry
668 * params [in] The contents to be copied into resource
670 * returns 0 on success and negative on failure.
673 ulp_flow_db_resource_add(struct bnxt_ulp_context *ulp_ctxt,
674 enum bnxt_ulp_fdb_type flow_type,
676 struct ulp_flow_db_res_params *params)
678 struct bnxt_ulp_flow_db *flow_db;
679 struct bnxt_ulp_flow_tbl *flow_tbl;
680 struct ulp_fdb_resource_info *resource, *fid_resource;
681 struct bnxt_ulp_fc_info *ulp_fc_info;
684 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
686 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
690 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
691 BNXT_TF_DBG(ERR, "Invalid flow type\n");
695 flow_tbl = &flow_db->flow_tbl;
696 /* check for max flows */
697 if (fid >= flow_tbl->num_flows || !fid) {
698 BNXT_TF_DBG(ERR, "Invalid flow index\n");
702 /* check if the flow is active or not */
703 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
704 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
708 /* check for max resource */
709 if ((flow_tbl->head_index + 1) >= flow_tbl->tail_index) {
710 BNXT_TF_DBG(ERR, "Flow db has reached max resources\n");
713 fid_resource = &flow_tbl->flow_resources[fid];
715 if (!params->critical_resource) {
716 /* Not the critical_resource so allocate a resource */
717 idx = flow_tbl->flow_tbl_stack[flow_tbl->tail_index];
718 resource = &flow_tbl->flow_resources[idx];
719 flow_tbl->tail_index--;
721 /* Update the chain list of resource*/
722 ULP_FLOW_DB_RES_NXT_SET(resource->nxt_resource_idx,
723 fid_resource->nxt_resource_idx);
724 /* update the contents */
725 ulp_flow_db_res_params_to_info(resource, params);
726 ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
727 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
730 /* critical resource. Just update the fid resource */
731 ulp_flow_db_res_params_to_info(fid_resource, params);
734 ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ulp_ctxt);
735 if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
736 params->resource_sub_type ==
737 BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT &&
739 /* Store the first HW counter ID for this table */
740 if (!ulp_fc_mgr_start_idx_isset(ulp_ctxt, params->direction))
741 ulp_fc_mgr_start_idx_set(ulp_ctxt, params->direction,
742 params->resource_hndl);
744 ulp_fc_mgr_cntr_set(ulp_ctxt, params->direction,
745 params->resource_hndl);
747 if (!ulp_fc_mgr_thread_isstarted(ulp_ctxt))
748 ulp_fc_mgr_thread_start(ulp_ctxt);
751 /* all good, return success */
756 * Free the flow database entry.
757 * The params->critical_resource has to be set to 1 to free the first resource.
759 * ulp_ctxt [in] Ptr to ulp_context
760 * flow_type [in] Specify it is regular or default flow
761 * fid [in] The index to the flow entry
762 * params [in/out] The contents to be copied into params.
763 * Onlythe critical_resource needs to be set by the caller.
765 * Returns 0 on success and negative on failure.
768 ulp_flow_db_resource_del(struct bnxt_ulp_context *ulp_ctxt,
769 enum bnxt_ulp_fdb_type flow_type,
771 struct ulp_flow_db_res_params *params)
773 struct bnxt_ulp_flow_db *flow_db;
774 struct bnxt_ulp_flow_tbl *flow_tbl;
775 struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
776 uint32_t nxt_idx = 0;
777 struct bnxt_tun_cache_entry *tun_tbl;
781 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
783 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
787 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
788 BNXT_TF_DBG(ERR, "Invalid flow type\n");
792 flow_tbl = &flow_db->flow_tbl;
793 /* check for max flows */
794 if (fid >= flow_tbl->num_flows || !fid) {
795 BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
799 /* check if the flow is active or not */
800 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
801 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
805 fid_resource = &flow_tbl->flow_resources[fid];
806 if (!params->critical_resource) {
807 /* Not the critical resource so free the resource */
808 ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
809 fid_resource->nxt_resource_idx);
811 /* reached end of resources */
814 nxt_resource = &flow_tbl->flow_resources[nxt_idx];
816 /* connect the fid resource to the next resource */
817 ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
818 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
819 nxt_resource->nxt_resource_idx);
821 /* update the contents to be given to caller */
822 ulp_flow_db_res_info_to_params(nxt_resource, params);
824 /* Delete the nxt_resource */
825 memset(nxt_resource, 0, sizeof(struct ulp_fdb_resource_info));
827 /* add it to the free list */
828 flow_tbl->tail_index++;
829 if (flow_tbl->tail_index >= flow_tbl->num_resources) {
830 BNXT_TF_DBG(ERR, "FlowDB:Tail reached max\n");
833 flow_tbl->flow_tbl_stack[flow_tbl->tail_index] = nxt_idx;
836 /* Critical resource. copy the contents and exit */
837 ulp_flow_db_res_info_to_params(fid_resource, params);
838 ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
839 fid_resource->nxt_resource_idx);
840 memset(fid_resource, 0, sizeof(struct ulp_fdb_resource_info));
841 ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
845 /* Now that the HW Flow counter resource is deleted, reset it's
846 * corresponding slot in the SW accumulation table in the Flow Counter
849 if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
850 params->resource_sub_type ==
851 BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT) {
852 ulp_fc_mgr_cntr_reset(ulp_ctxt, params->direction,
853 params->resource_hndl);
856 if (params->resource_func == BNXT_ULP_RESOURCE_FUNC_PARENT_FLOW) {
857 tun_tbl = bnxt_ulp_cntxt_ptr2_tun_tbl_get(ulp_ctxt);
861 rc = ulp_flow_db_parent_tun_idx_get(ulp_ctxt, fid, &tun_idx);
865 ulp_clear_tun_entry(tun_tbl, tun_idx);
868 /* all good, return success */
873 * Free the flow database entry
875 * ulp_ctxt [in] Ptr to ulp_context
876 * flow_type [in] - specify default or regular
877 * fid [in] The index to the flow entry
879 * returns 0 on success and negative on failure.
882 ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt,
883 enum bnxt_ulp_fdb_type flow_type,
886 struct bnxt_tun_cache_entry *tun_tbl;
887 struct bnxt_ulp_flow_tbl *flow_tbl;
888 struct bnxt_ulp_flow_db *flow_db;
890 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
892 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
896 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
897 BNXT_TF_DBG(ERR, "Invalid flow type\n");
901 flow_tbl = &flow_db->flow_tbl;
903 /* check for limits of fid */
904 if (fid >= flow_tbl->num_flows || !fid) {
905 BNXT_TF_DBG(ERR, "Invalid flow index\n");
909 /* check if the flow is active or not */
910 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
911 BNXT_TF_DBG(ERR, "flow does not exist %x:%x\n", flow_type, fid);
914 flow_tbl->head_index--;
915 if (!flow_tbl->head_index) {
916 BNXT_TF_DBG(ERR, "FlowDB: Head Ptr is zero\n");
920 flow_tbl->flow_tbl_stack[flow_tbl->head_index] = fid;
922 /* Clear the flows bitmap */
923 ulp_flow_db_active_flows_bit_set(flow_db, flow_type, fid, 0);
925 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
926 ulp_flow_db_func_id_set(flow_db, fid, 0);
928 tun_tbl = bnxt_ulp_cntxt_ptr2_tun_tbl_get(ulp_ctxt);
932 ulp_clear_tun_inner_entry(tun_tbl, fid);
934 /* all good, return success */
939 *Get the flow database entry details
941 * ulp_ctxt [in] Ptr to ulp_context
942 * flow_type [in] - specify default or regular
943 * fid [in] The index to the flow entry
944 * nxt_idx [in/out] the index to the next entry
945 * params [out] The contents to be copied into params.
947 * returns 0 on success and negative on failure.
950 ulp_flow_db_resource_get(struct bnxt_ulp_context *ulp_ctxt,
951 enum bnxt_ulp_fdb_type flow_type,
954 struct ulp_flow_db_res_params *params)
956 struct bnxt_ulp_flow_db *flow_db;
957 struct bnxt_ulp_flow_tbl *flow_tbl;
958 struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
960 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
962 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
966 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
967 BNXT_TF_DBG(ERR, "Invalid flow type\n");
971 flow_tbl = &flow_db->flow_tbl;
973 /* check for limits of fid */
974 if (fid >= flow_tbl->num_flows || !fid) {
975 BNXT_TF_DBG(ERR, "Invalid flow index\n");
979 /* check if the flow is active or not */
980 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
981 BNXT_TF_DBG(ERR, "flow does not exist\n");
986 fid_resource = &flow_tbl->flow_resources[fid];
987 ulp_flow_db_res_info_to_params(fid_resource, params);
988 ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
989 fid_resource->nxt_resource_idx);
991 nxt_resource = &flow_tbl->flow_resources[*nxt_idx];
992 ulp_flow_db_res_info_to_params(nxt_resource, params);
994 ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
995 nxt_resource->nxt_resource_idx);
998 /* all good, return success */
1003 * Get the flow database entry iteratively
1005 * flow_tbl [in] Ptr to flow table
1006 * flow_type [in] - specify default or regular
1007 * fid [in/out] The index to the flow entry
1009 * returns 0 on success and negative on failure.
1012 ulp_flow_db_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
1013 enum bnxt_ulp_fdb_type flow_type,
1016 uint32_t lfid = *fid;
1017 uint32_t idx, s_idx, mod_fid;
1019 uint64_t *active_flows;
1020 struct bnxt_ulp_flow_tbl *flowtbl = &flow_db->flow_tbl;
1022 if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR) {
1023 active_flows = flowtbl->active_reg_flows;
1024 } else if (flow_type == BNXT_ULP_FDB_TYPE_DEFAULT) {
1025 active_flows = flowtbl->active_dflt_flows;
1027 BNXT_TF_DBG(ERR, "Invalid flow type %x\n", flow_type);
1032 /* increment the flow id to find the next valid flow id */
1034 if (lfid >= flowtbl->num_flows)
1036 idx = lfid / ULP_INDEX_BITMAP_SIZE;
1037 mod_fid = lfid % ULP_INDEX_BITMAP_SIZE;
1039 while (!(bs = active_flows[idx])) {
1041 if ((idx * ULP_INDEX_BITMAP_SIZE) >= flowtbl->num_flows)
1045 * remove the previous bits in the bitset bs to find the
1046 * next non zero bit in the bitset. This needs to be done
1047 * only if the idx is same as he one you started.
1050 bs &= (-1UL >> mod_fid);
1051 lfid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
1053 BNXT_TF_DBG(ERR, "Flow Database is corrupt\n");
1056 } while (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type,
1059 /* all good, return success */
1065 * Flush all flows in the flow database.
1067 * ulp_ctxt [in] Ptr to ulp context
1068 * flow_type [in] - specify default or regular
1070 * returns 0 on success or negative number on failure
1073 ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
1074 enum bnxt_ulp_fdb_type flow_type)
1077 struct bnxt_ulp_flow_db *flow_db;
1080 BNXT_TF_DBG(ERR, "Invalid Argument\n");
1084 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1086 BNXT_TF_DBG(ERR, "Flow database not found\n");
1089 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
1090 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
1094 while (!ulp_flow_db_next_entry_get(flow_db, flow_type, &fid))
1095 ulp_mapper_resources_free(ulp_ctx, flow_type, fid);
1097 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
1103 * Flush all flows in the flow database that belong to a device function.
1105 * ulp_ctxt [in] Ptr to ulp context
1106 * func_id [in] - The port function id
1108 * returns 0 on success or negative number on failure
1111 ulp_flow_db_function_flow_flush(struct bnxt_ulp_context *ulp_ctx,
1114 uint32_t flow_id = 0;
1115 struct bnxt_ulp_flow_db *flow_db;
1117 if (!ulp_ctx || !func_id) {
1118 BNXT_TF_DBG(ERR, "Invalid Argument\n");
1122 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1124 BNXT_TF_DBG(ERR, "Flow database not found\n");
1127 if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
1128 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
1132 while (!ulp_flow_db_next_entry_get(flow_db, BNXT_ULP_FDB_TYPE_REGULAR,
1134 if (flow_db->func_id_tbl[flow_id] == func_id)
1135 ulp_mapper_resources_free(ulp_ctx,
1136 BNXT_ULP_FDB_TYPE_REGULAR,
1139 bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
1144 * Flush all flows in the flow database that are associated with the session.
1146 * ulp_ctxt [in] Ptr to ulp context
1148 * returns 0 on success or negative number on failure
1151 ulp_flow_db_session_flow_flush(struct bnxt_ulp_context *ulp_ctx)
1154 * TBD: Tf core implementation of FW session flush shall change this
1157 return ulp_flow_db_flush_flows(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR);
1161 * Check that flow id matches the function id or not
1163 * ulp_ctxt [in] Ptr to ulp context
1164 * flow_db [in] Ptr to flow table
1165 * func_id [in] The func_id to be set, for reset pass zero.
1167 * returns true on success or false on failure
1170 ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
1174 struct bnxt_ulp_flow_db *flow_db;
1176 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1178 BNXT_TF_DBG(ERR, "Flow database not found\n");
1182 /* set the function id in the function table */
1183 if (flow_id < flow_db->func_id_tbl_size && func_id &&
1184 flow_db->func_id_tbl[flow_id] == func_id)
1191 * Internal api to traverse the resource list within a flow
1192 * and match a resource based on resource func and resource
1193 * sub type. This api should be used only for resources that
1194 * are unique and do not have multiple instances of resource
1195 * func and sub type combination since it will return only
1199 ulp_flow_db_resource_params_get(struct bnxt_ulp_context *ulp_ctx,
1200 enum bnxt_ulp_fdb_type flow_type,
1202 uint32_t resource_func,
1203 uint32_t res_subtype,
1204 struct ulp_flow_db_res_params *params)
1206 struct bnxt_ulp_flow_db *flow_db;
1207 struct bnxt_ulp_flow_tbl *flow_tbl;
1208 struct ulp_fdb_resource_info *fid_res;
1211 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
1213 BNXT_TF_DBG(ERR, "Flow database not found\n");
1218 BNXT_TF_DBG(ERR, "invalid argument\n");
1222 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1223 BNXT_TF_DBG(ERR, "Invalid flow type\n");
1227 flow_tbl = &flow_db->flow_tbl;
1229 /* check for limits of fid */
1230 if (flow_id >= flow_tbl->num_flows || !flow_id) {
1231 BNXT_TF_DBG(ERR, "Invalid flow index\n");
1235 /* check if the flow is active or not */
1236 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, flow_id)) {
1237 BNXT_TF_DBG(ERR, "flow does not exist\n");
1240 /* Iterate the resource to get the resource handle */
1242 memset(params, 0, sizeof(struct ulp_flow_db_res_params));
1244 fid_res = &flow_tbl->flow_resources[res_id];
1245 if (ulp_flow_db_resource_func_get(fid_res) == resource_func) {
1246 if (resource_func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER) {
1247 if (res_subtype == fid_res->resource_sub_type) {
1248 ulp_flow_db_res_info_to_params(fid_res,
1253 } else if (resource_func ==
1254 BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
1255 ulp_flow_db_res_info_to_params(fid_res,
1261 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1267 * Api to get the cfa action pointer from a flow.
1269 * ulp_ctxt [in] Ptr to ulp context
1270 * flow_id [in] flow id
1271 * cfa_action [out] The resource handle stored in the flow database
1273 * returns 0 on success
1276 ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context *ulp_ctx,
1278 uint16_t *cfa_action)
1280 uint8_t sub_typ = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_VFR_CFA_ACTION;
1281 struct ulp_flow_db_res_params params;
1284 rc = ulp_flow_db_resource_params_get(ulp_ctx,
1285 BNXT_ULP_FDB_TYPE_DEFAULT,
1287 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1290 BNXT_TF_DBG(ERR, "CFA Action ptr not found for flow id %u\n",
1294 *cfa_action = params.resource_hndl;
1299 * Allocate the entry in the parent-child database
1301 * ulp_ctxt [in] Ptr to ulp_context
1302 * fid [in] The flow id to the flow entry
1304 * returns index on success and negative on failure.
1307 ulp_flow_db_parent_flow_alloc(struct bnxt_ulp_context *ulp_ctxt,
1310 struct bnxt_ulp_flow_db *flow_db;
1311 struct ulp_fdb_parent_child_db *p_pdb;
1312 uint32_t idx, free_idx = 0;
1314 /* validate the arguments */
1315 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, fid);
1317 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1321 p_pdb = &flow_db->parent_child_db;
1322 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1323 if (p_pdb->parent_flow_tbl[idx].parent_fid == fid) {
1324 BNXT_TF_DBG(ERR, "fid is already allocated\n");
1327 if (!p_pdb->parent_flow_tbl[idx].parent_fid && !free_idx)
1332 BNXT_TF_DBG(ERR, "parent child db is full\n");
1337 /* set the Fid in the parent child */
1338 p_pdb->parent_flow_tbl[free_idx].parent_fid = fid;
1343 * Free the entry in the parent-child database
1345 * ulp_ctxt [in] Ptr to ulp_context
1346 * fid [in] The flow id to the flow entry
1348 * returns 0 on success and negative on failure.
1351 ulp_flow_db_parent_flow_free(struct bnxt_ulp_context *ulp_ctxt,
1354 struct bnxt_ulp_flow_db *flow_db;
1355 struct ulp_fdb_parent_child_db *p_pdb;
1358 /* validate the arguments */
1359 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, fid);
1361 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1365 p_pdb = &flow_db->parent_child_db;
1366 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1367 if (p_pdb->parent_flow_tbl[idx].parent_fid == fid) {
1368 /* free the contents */
1369 p_pdb->parent_flow_tbl[idx].parent_fid = 0;
1370 memset(p_pdb->parent_flow_tbl[idx].child_fid_bitset,
1371 0, p_pdb->child_bitset_size);
1375 BNXT_TF_DBG(ERR, "parent entry not found = %x\n", fid);
1380 * Set or reset the child flow in the parent-child database
1382 * ulp_ctxt [in] Ptr to ulp_context
1383 * parent_fid [in] The flow id of the parent flow entry
1384 * child_fid [in] The flow id of the child flow entry
1385 * set_flag [in] Use 1 for setting child, 0 to reset
1387 * returns zero on success and negative on failure.
1390 ulp_flow_db_parent_child_flow_set(struct bnxt_ulp_context *ulp_ctxt,
1391 uint32_t parent_fid,
1395 struct bnxt_ulp_flow_db *flow_db;
1396 struct ulp_fdb_parent_child_db *p_pdb;
1397 uint32_t idx, a_idx;
1400 /* validate the arguments */
1401 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
1403 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1407 /* check for fid validity */
1408 if (child_fid >= flow_db->flow_tbl.num_flows || !child_fid) {
1409 BNXT_TF_DBG(ERR, "Invalid child flow index %x\n", child_fid);
1413 p_pdb = &flow_db->parent_child_db;
1414 a_idx = child_fid / ULP_INDEX_BITMAP_SIZE;
1415 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1416 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
1417 t = p_pdb->parent_flow_tbl[idx].child_fid_bitset;
1419 ULP_INDEX_BITMAP_SET(t[a_idx], child_fid);
1421 ULP_INDEX_BITMAP_RESET(t[a_idx], child_fid);
1425 BNXT_TF_DBG(ERR, "Unable to set the parent-child flow %x:%x\n",
1426 parent_fid, child_fid);
1431 * Get the parent index from the parent-child database
1433 * ulp_ctxt [in] Ptr to ulp_context
1434 * parent_fid [in] The flow id of the parent flow entry
1435 * parent_idx [out] The parent index of parent flow entry
1437 * returns zero on success and negative on failure.
1440 ulp_flow_db_parent_flow_idx_get(struct bnxt_ulp_context *ulp_ctxt,
1441 uint32_t parent_fid,
1442 uint32_t *parent_idx)
1444 struct bnxt_ulp_flow_db *flow_db;
1445 struct ulp_fdb_parent_child_db *p_pdb;
1448 /* validate the arguments */
1449 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
1451 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1455 p_pdb = &flow_db->parent_child_db;
1456 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1457 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
1462 BNXT_TF_DBG(ERR, "Unable to get the parent flow %x\n", parent_fid);
1467 * Get the next child flow in the parent-child database
1469 * ulp_ctxt [in] Ptr to ulp_context
1470 * parent_fid [in] The flow id of the parent flow entry
1471 * child_fid [in/out] The flow id of the child flow entry
1473 * returns zero on success and negative on failure.
1474 * Pass child_fid as zero for first entry.
1477 ulp_flow_db_parent_child_flow_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
1478 uint32_t parent_idx,
1479 uint32_t *child_fid)
1481 struct ulp_fdb_parent_child_db *p_pdb;
1482 uint32_t idx, s_idx, mod_fid;
1483 uint32_t next_fid = *child_fid;
1484 uint64_t *child_bitset;
1487 /* check for fid validity */
1488 p_pdb = &flow_db->parent_child_db;
1489 if (parent_idx >= p_pdb->entries_count ||
1490 !p_pdb->parent_flow_tbl[parent_idx].parent_fid) {
1491 BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_idx);
1495 child_bitset = p_pdb->parent_flow_tbl[parent_idx].child_fid_bitset;
1497 /* increment the flow id to find the next valid flow id */
1499 if (next_fid >= flow_db->flow_tbl.num_flows)
1501 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1502 mod_fid = next_fid % ULP_INDEX_BITMAP_SIZE;
1504 while (!(bs = child_bitset[idx])) {
1506 if ((idx * ULP_INDEX_BITMAP_SIZE) >=
1507 flow_db->flow_tbl.num_flows)
1511 * remove the previous bits in the bitset bs to find the
1512 * next non zero bit in the bitset. This needs to be done
1513 * only if the idx is same as he one you started.
1516 bs &= (-1UL >> mod_fid);
1517 next_fid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
1518 if (*child_fid >= next_fid) {
1519 BNXT_TF_DBG(ERR, "Parent Child Database is corrupt\n");
1522 idx = next_fid / ULP_INDEX_BITMAP_SIZE;
1523 } while (!ULP_INDEX_BITMAP_GET(child_bitset[idx], next_fid));
1524 *child_fid = next_fid;
1529 * Set the counter accumulation in the parent flow
1531 * ulp_ctxt [in] Ptr to ulp_context
1532 * parent_idx [in] The parent index of the parent flow entry
1534 * returns index on success and negative on failure.
1537 ulp_flow_db_parent_flow_count_accum_set(struct bnxt_ulp_context *ulp_ctxt,
1538 uint32_t parent_idx)
1540 struct bnxt_ulp_flow_db *flow_db;
1541 struct ulp_fdb_parent_child_db *p_pdb;
1543 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1545 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1549 /* check for parent idx validity */
1550 p_pdb = &flow_db->parent_child_db;
1551 if (parent_idx >= p_pdb->entries_count ||
1552 !p_pdb->parent_flow_tbl[parent_idx].parent_fid) {
1553 BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_idx);
1557 p_pdb->parent_flow_tbl[parent_idx].counter_acc = 1;
1562 * Get the counter accumulation in the parent flow
1564 * ulp_ctxt [in] Ptr to ulp_context
1565 * parent_fid [in] The flow id of the parent flow entry
1567 * returns 0 if counter accum is set else -1.
1570 ulp_flow_db_parent_flow_count_accum_get(struct bnxt_ulp_context *ulp_ctxt,
1571 uint32_t parent_fid)
1573 struct bnxt_ulp_flow_db *flow_db;
1574 struct ulp_fdb_parent_child_db *p_pdb;
1577 /* validate the arguments */
1578 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
1580 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1584 p_pdb = &flow_db->parent_child_db;
1585 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1586 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
1587 if (p_pdb->parent_flow_tbl[idx].counter_acc)
1596 * Orphan the child flow entry
1597 * This is called only for child flows that have
1598 * BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW resource
1600 * ulp_ctxt [in] Ptr to ulp_context
1601 * flow_type [in] Specify it is regular or default flow
1602 * fid [in] The index to the flow entry
1604 * Returns 0 on success and negative on failure.
1607 ulp_flow_db_child_flow_reset(struct bnxt_ulp_context *ulp_ctxt,
1608 enum bnxt_ulp_fdb_type flow_type,
1611 struct bnxt_ulp_flow_db *flow_db;
1612 struct bnxt_ulp_flow_tbl *flow_tbl;
1613 struct ulp_fdb_resource_info *fid_res;
1614 uint32_t res_id = 0;
1616 flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
1618 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
1622 if (flow_type >= BNXT_ULP_FDB_TYPE_LAST) {
1623 BNXT_TF_DBG(ERR, "Invalid flow type\n");
1627 flow_tbl = &flow_db->flow_tbl;
1628 /* check for max flows */
1629 if (fid >= flow_tbl->num_flows || !fid) {
1630 BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
1634 /* check if the flow is active or not */
1635 if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
1636 BNXT_TF_DBG(ERR, "flow does not exist\n");
1640 /* Iterate the resource to get the resource handle */
1643 fid_res = &flow_tbl->flow_resources[res_id];
1644 if (ulp_flow_db_resource_func_get(fid_res) ==
1645 BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW) {
1646 /* invalidate the resource details */
1647 fid_res->resource_hndl = 0;
1651 ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
1658 * Create parent flow in the parent flow tbl
1660 * parms [in] Ptr to mapper params
1662 * Returns 0 on success and negative on failure.
1665 ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms *parms)
1667 struct ulp_flow_db_res_params fid_parms;
1668 uint32_t sub_typ = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT_ACC;
1669 struct ulp_flow_db_res_params res_params;
1670 int32_t fid_idx, rc;
1672 /* create the child flow entry in parent flow table */
1673 fid_idx = ulp_flow_db_parent_flow_alloc(parms->ulp_ctx, parms->fid);
1675 BNXT_TF_DBG(ERR, "Error in creating parent flow fid %x\n",
1680 /* Add the parent details in the resource list of the flow */
1681 memset(&fid_parms, 0, sizeof(fid_parms));
1682 fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_PARENT_FLOW;
1683 fid_parms.resource_hndl = fid_idx;
1684 fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
1685 if (ulp_flow_db_resource_add(parms->ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
1686 parms->fid, &fid_parms)) {
1687 BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
1692 /* check of the flow has internal counter accumulation enabled */
1693 if (!ulp_flow_db_resource_params_get(parms->ulp_ctx,
1694 BNXT_ULP_FDB_TYPE_REGULAR,
1696 BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
1699 /* Enable the counter accumulation in parent entry */
1700 if (ulp_flow_db_parent_flow_count_accum_set(parms->ulp_ctx,
1702 BNXT_TF_DBG(ERR, "Error in setting counter acc %x\n",
1708 rc = ulp_flow_db_parent_tun_idx_set(parms->ulp_ctx, fid_idx,
1711 BNXT_TF_DBG(ERR, "Error setting tun_idx in the parent flow\n");
1719 * Create child flow in the parent flow tbl
1721 * parms [in] Ptr to mapper params
1723 * Returns 0 on success and negative on failure.
1726 ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms *parms)
1728 struct ulp_flow_db_res_params fid_parms;
1729 uint32_t sub_type = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT;
1730 enum bnxt_ulp_resource_func res_fun;
1731 struct ulp_flow_db_res_params res_p;
1732 uint32_t parent_fid = parms->parent_fid;
1735 /* create the parent flow entry in parent flow table */
1736 rc = ulp_flow_db_parent_child_flow_set(parms->ulp_ctx,
1740 BNXT_TF_DBG(ERR, "Error in setting child fid %x\n", parms->fid);
1744 /* Add the parent details in the resource list of the flow */
1745 memset(&fid_parms, 0, sizeof(fid_parms));
1746 fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW;
1747 fid_parms.resource_hndl = parms->parent_fid;
1748 fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
1749 rc = ulp_flow_db_resource_add(parms->ulp_ctx,
1750 BNXT_ULP_FDB_TYPE_REGULAR,
1751 parms->fid, &fid_parms);
1753 BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
1758 /* check if accumulation count is set for parent flow */
1759 rc = ulp_flow_db_parent_flow_count_accum_get(parms->ulp_ctx,
1762 /* check if internal count action included for this flow.*/
1763 res_fun = BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE;
1764 rc = ulp_flow_db_resource_params_get(parms->ulp_ctx,
1765 BNXT_ULP_FDB_TYPE_REGULAR,
1771 /* update the counter manager to include parent fid */
1772 if (ulp_fc_mgr_cntr_parent_flow_set(parms->ulp_ctx,
1774 res_p.resource_hndl,
1776 BNXT_TF_DBG(ERR, "Error in setting child %x\n",
1782 /* return success */
1787 * Update the parent counters
1789 * ulp_ctxt [in] Ptr to ulp_context
1790 * parent_fid [in] The flow id of the parent flow entry
1791 * packet_count [in] - packet count
1792 * byte_count [in] - byte count
1794 * returns 0 on success
1797 ulp_flow_db_parent_flow_count_update(struct bnxt_ulp_context *ulp_ctxt,
1798 uint32_t parent_fid,
1799 uint64_t packet_count,
1800 uint64_t byte_count)
1802 struct bnxt_ulp_flow_db *flow_db;
1803 struct ulp_fdb_parent_child_db *p_pdb;
1806 /* validate the arguments */
1807 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
1809 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1813 p_pdb = &flow_db->parent_child_db;
1814 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1815 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
1816 if (p_pdb->parent_flow_tbl[idx].counter_acc) {
1817 p_pdb->parent_flow_tbl[idx].pkt_count +=
1819 p_pdb->parent_flow_tbl[idx].byte_count +=
1829 * Get the parent accumulation counters
1831 * ulp_ctxt [in] Ptr to ulp_context
1832 * parent_fid [in] The flow id of the parent flow entry
1833 * packet_count [out] - packet count
1834 * byte_count [out] - byte count
1836 * returns 0 on success
1839 ulp_flow_db_parent_flow_count_get(struct bnxt_ulp_context *ulp_ctxt,
1840 uint32_t parent_fid, uint64_t *packet_count,
1841 uint64_t *byte_count, uint8_t count_reset)
1843 struct bnxt_ulp_flow_db *flow_db;
1844 struct ulp_fdb_parent_child_db *p_pdb;
1847 /* validate the arguments */
1848 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, parent_fid);
1850 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1854 p_pdb = &flow_db->parent_child_db;
1855 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1856 if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
1857 if (p_pdb->parent_flow_tbl[idx].counter_acc) {
1859 p_pdb->parent_flow_tbl[idx].pkt_count;
1861 p_pdb->parent_flow_tbl[idx].byte_count;
1863 p_pdb->parent_flow_tbl[idx].pkt_count = 0;
1864 p_pdb->parent_flow_tbl[idx].byte_count = 0;
1874 * reset the parent accumulation counters
1876 * ulp_ctxt [in] Ptr to ulp_context
1881 ulp_flow_db_parent_flow_count_reset(struct bnxt_ulp_context *ulp_ctxt)
1883 struct bnxt_ulp_flow_db *flow_db;
1884 struct ulp_fdb_parent_child_db *p_pdb;
1887 /* validate the arguments */
1888 flow_db = ulp_flow_db_parent_arg_validation(ulp_ctxt, 1);
1890 BNXT_TF_DBG(ERR, "parent child db validation failed\n");
1894 p_pdb = &flow_db->parent_child_db;
1895 for (idx = 0; idx < p_pdb->entries_count; idx++) {
1896 if (p_pdb->parent_flow_tbl[idx].parent_fid &&
1897 p_pdb->parent_flow_tbl[idx].counter_acc) {
1898 p_pdb->parent_flow_tbl[idx].pkt_count = 0;
1899 p_pdb->parent_flow_tbl[idx].byte_count = 0;
1905 * Set the shared bit for the flow db entry
1907 * res [in] Ptr to fdb entry
1908 * shared [in] shared flag
1912 void ulp_flow_db_shared_session_set(struct ulp_flow_db_res_params *res,
1913 enum bnxt_ulp_shared_session shared)
1915 if (res && (shared & BNXT_ULP_SHARED_SESSION_YES))
1916 res->fdb_flags |= ULP_FDB_FLAG_SHARED_SESSION;