+
+/*
+ * Allocate the flow database entry
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] - specify default or regular
+ * func_id [in].function id of the ingress port
+ * fid [out] The index to the flow entry
+ *
+ * returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_fid_alloc(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint16_t func_id,
+ uint32_t *fid)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+
+ *fid = 0; /* Initialize fid to invalid value */
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+ /* check for max flows */
+ if (flow_tbl->num_flows <= flow_tbl->head_index) {
+ BNXT_TF_DBG(ERR, "Flow database has reached max flows\n");
+ return -ENOMEM;
+ }
+ if (flow_tbl->tail_index <= (flow_tbl->head_index + 1)) {
+ BNXT_TF_DBG(ERR, "Flow database has reached max resources\n");
+ return -ENOMEM;
+ }
+ *fid = flow_tbl->flow_tbl_stack[flow_tbl->head_index];
+ flow_tbl->head_index++;
+
+ /* Set the flow type */
+ ulp_flow_db_active_flows_bit_set(flow_db, flow_type, *fid, 1);
+
+ /* function id update is only valid for regular flow table */
+ if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
+ ulp_flow_db_func_id_set(flow_db, *fid, func_id);
+
+ /* return success */
+ return 0;
+}
+
+/*
+ * Allocate the flow database entry.
+ * The params->critical_resource has to be set to 0 to allocate a new resource.
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] Specify it is regular or default flow
+ * fid [in] The index to the flow entry
+ * params [in] The contents to be copied into resource
+ *
+ * returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_resource_add(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t fid,
+ struct ulp_flow_db_res_params *params)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *resource, *fid_resource;
+ uint32_t idx;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+ /* check for max flows */
+ if (fid >= flow_tbl->num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+
+ /* check for max resource */
+ if ((flow_tbl->head_index + 1) >= flow_tbl->tail_index) {
+ BNXT_TF_DBG(ERR, "Flow db has reached max resources\n");
+ return -ENOMEM;
+ }
+ fid_resource = &flow_tbl->flow_resources[fid];
+
+ if (!params->critical_resource) {
+ /* Not the critical_resource so allocate a resource */
+ idx = flow_tbl->flow_tbl_stack[flow_tbl->tail_index];
+ resource = &flow_tbl->flow_resources[idx];
+ flow_tbl->tail_index--;
+
+ /* Update the chain list of resource*/
+ ULP_FLOW_DB_RES_NXT_SET(resource->nxt_resource_idx,
+ fid_resource->nxt_resource_idx);
+ /* update the contents */
+ ulp_flow_db_res_params_to_info(resource, params);
+ ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
+ ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
+ idx);
+ } else {
+ /* critical resource. Just update the fid resource */
+ ulp_flow_db_res_params_to_info(fid_resource, params);
+ }
+
+ if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
+ params->resource_sub_type ==
+ BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TYPE_INT_COUNT) {
+ /* Store the first HW counter ID for this table */
+ if (!ulp_fc_mgr_start_idx_isset(ulp_ctxt, params->direction))
+ ulp_fc_mgr_start_idx_set(ulp_ctxt, params->direction,
+ params->resource_hndl);
+
+ ulp_fc_mgr_cntr_set(ulp_ctxt, params->direction,
+ params->resource_hndl);
+
+ if (!ulp_fc_mgr_thread_isstarted(ulp_ctxt))
+ ulp_fc_mgr_thread_start(ulp_ctxt);
+ }
+
+ /* all good, return success */
+ return 0;
+}
+
+/*
+ * Free the flow database entry.
+ * The params->critical_resource has to be set to 1 to free the first resource.
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] Specify it is regular or default flow
+ * fid [in] The index to the flow entry
+ * params [in/out] The contents to be copied into params.
+ * Onlythe critical_resource needs to be set by the caller.
+ *
+ * Returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_resource_del(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t fid,
+ struct ulp_flow_db_res_params *params)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
+ uint32_t nxt_idx = 0;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+ /* check for max flows */
+ if (fid >= flow_tbl->num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+
+ fid_resource = &flow_tbl->flow_resources[fid];
+ if (!params->critical_resource) {
+ /* Not the critical resource so free the resource */
+ ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
+ fid_resource->nxt_resource_idx);
+ if (!nxt_idx) {
+ /* reached end of resources */
+ return -ENOENT;
+ }
+ nxt_resource = &flow_tbl->flow_resources[nxt_idx];
+
+ /* connect the fid resource to the next resource */
+ ULP_FLOW_DB_RES_NXT_RESET(fid_resource->nxt_resource_idx);
+ ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
+ nxt_resource->nxt_resource_idx);
+
+ /* update the contents to be given to caller */
+ ulp_flow_db_res_info_to_params(nxt_resource, params);
+
+ /* Delete the nxt_resource */
+ memset(nxt_resource, 0, sizeof(struct ulp_fdb_resource_info));
+
+ /* add it to the free list */
+ flow_tbl->tail_index++;
+ if (flow_tbl->tail_index >= flow_tbl->num_resources) {
+ BNXT_TF_DBG(ERR, "FlowDB:Tail reached max\n");
+ return -ENOENT;
+ }
+ flow_tbl->flow_tbl_stack[flow_tbl->tail_index] = nxt_idx;
+
+ } else {
+ /* Critical resource. copy the contents and exit */
+ ulp_flow_db_res_info_to_params(fid_resource, params);
+ ULP_FLOW_DB_RES_NXT_SET(nxt_idx,
+ fid_resource->nxt_resource_idx);
+ memset(fid_resource, 0, sizeof(struct ulp_fdb_resource_info));
+ ULP_FLOW_DB_RES_NXT_SET(fid_resource->nxt_resource_idx,
+ nxt_idx);
+ }
+
+ /* Now that the HW Flow counter resource is deleted, reset it's
+ * corresponding slot in the SW accumulation table in the Flow Counter
+ * manager
+ */
+ if (params->resource_type == TF_TBL_TYPE_ACT_STATS_64 &&
+ params->resource_sub_type ==
+ BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TYPE_INT_COUNT) {
+ ulp_fc_mgr_cntr_reset(ulp_ctxt, params->direction,
+ params->resource_hndl);
+ }
+
+ /* all good, return success */
+ return 0;
+}
+
+/*
+ * Free the flow database entry
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] - specify default or regular
+ * fid [in] The index to the flow entry
+ *
+ * returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t fid)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+
+ /* check for limits of fid */
+ if (fid >= flow_tbl->num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+ flow_tbl->head_index--;
+ if (!flow_tbl->head_index) {
+ BNXT_TF_DBG(ERR, "FlowDB: Head Ptr is zero\n");
+ return -ENOENT;
+ }
+ flow_tbl->flow_tbl_stack[flow_tbl->head_index] = fid;
+
+ /* Clear the flows bitmap */
+ ulp_flow_db_active_flows_bit_set(flow_db, flow_type, fid, 0);
+
+ if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
+ ulp_flow_db_func_id_set(flow_db, fid, 0);
+
+ /* all good, return success */
+ return 0;
+}
+
+/*
+ * Get the flow database entry details
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] - specify default or regular
+ * fid [in] The index to the flow entry
+ * nxt_idx [in/out] the index to the next entry
+ * params [out] The contents to be copied into params.
+ *
+ * returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_resource_get(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t fid,
+ uint32_t *nxt_idx,
+ struct ulp_flow_db_res_params *params)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *nxt_resource, *fid_resource;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+
+ /* check for limits of fid */
+ if (fid >= flow_tbl->num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+
+ if (!*nxt_idx) {
+ fid_resource = &flow_tbl->flow_resources[fid];
+ ulp_flow_db_res_info_to_params(fid_resource, params);
+ ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
+ fid_resource->nxt_resource_idx);
+ } else {
+ nxt_resource = &flow_tbl->flow_resources[*nxt_idx];
+ ulp_flow_db_res_info_to_params(nxt_resource, params);
+ *nxt_idx = 0;
+ ULP_FLOW_DB_RES_NXT_SET(*nxt_idx,
+ nxt_resource->nxt_resource_idx);
+ }
+
+ /* all good, return success */
+ return 0;
+}
+
+/*
+ * Get the flow database entry iteratively
+ *
+ * flow_tbl [in] Ptr to flow table
+ * flow_type [in] - specify default or regular
+ * fid [in/out] The index to the flow entry
+ *
+ * returns 0 on success and negative on failure.
+ */
+static int32_t
+ulp_flow_db_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t *fid)
+{
+ uint32_t lfid = *fid;
+ uint32_t idx, s_idx, mod_fid;
+ uint64_t bs;
+ uint64_t *active_flows;
+ struct bnxt_ulp_flow_tbl *flowtbl = &flow_db->flow_tbl;
+
+ if (flow_type == BNXT_ULP_FDB_TYPE_REGULAR)
+ active_flows = flowtbl->active_reg_flows;
+ else
+ active_flows = flowtbl->active_dflt_flows;
+
+ do {
+ /* increment the flow id to find the next valid flow id */
+ lfid++;
+ if (lfid >= flowtbl->num_flows)
+ return -ENOENT;
+ idx = lfid / ULP_INDEX_BITMAP_SIZE;
+ mod_fid = lfid % ULP_INDEX_BITMAP_SIZE;
+ s_idx = idx;
+ while (!(bs = active_flows[idx])) {
+ idx++;
+ if ((idx * ULP_INDEX_BITMAP_SIZE) >= flowtbl->num_flows)
+ return -ENOENT;
+ }
+ /*
+ * remove the previous bits in the bitset bs to find the
+ * next non zero bit in the bitset. This needs to be done
+ * only if the idx is same as he one you started.
+ */
+ if (s_idx == idx)
+ bs &= (-1UL >> mod_fid);
+ lfid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
+ if (*fid >= lfid) {
+ BNXT_TF_DBG(ERR, "Flow Database is corrupt\n");
+ return -ENOENT;
+ }
+ } while (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type,
+ lfid));
+
+ /* all good, return success */
+ *fid = lfid;
+ return 0;
+}
+
+/*
+ * Flush all flows in the flow database.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * flow_type [in] - specify default or regular
+ *
+ * returns 0 on success or negative number on failure
+ */
+int32_t
+ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
+ enum bnxt_ulp_fdb_type flow_type)
+{
+ uint32_t fid = 0;
+ struct bnxt_ulp_flow_db *flow_db;
+
+ if (!ulp_ctx) {
+ BNXT_TF_DBG(ERR, "Invalid Argument\n");
+ return -EINVAL;
+ }
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Flow database not found\n");
+ return -EINVAL;
+ }
+ if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
+ BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
+ return -EINVAL;
+ }
+
+ while (!ulp_flow_db_next_entry_get(flow_db, flow_type, &fid))
+ ulp_mapper_resources_free(ulp_ctx, flow_type, fid);
+
+ bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
+
+ return 0;
+}
+
+/*
+ * Flush all flows in the flow database that belong to a device function.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * func_id [in] - The port function id
+ *
+ * returns 0 on success or negative number on failure
+ */
+int32_t
+ulp_flow_db_function_flow_flush(struct bnxt_ulp_context *ulp_ctx,
+ uint16_t func_id)
+{
+ uint32_t flow_id = 0;
+ struct bnxt_ulp_flow_db *flow_db;
+
+ if (!ulp_ctx || !func_id) {
+ BNXT_TF_DBG(ERR, "Invalid Argument\n");
+ return -EINVAL;
+ }
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Flow database not found\n");
+ return -EINVAL;
+ }
+ if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
+ BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
+ return -EINVAL;
+ }
+
+ while (!ulp_flow_db_next_entry_get(flow_db, BNXT_ULP_FDB_TYPE_REGULAR,
+ &flow_id)) {
+ if (flow_db->func_id_tbl[flow_id] == func_id)
+ ulp_mapper_resources_free(ulp_ctx,
+ BNXT_ULP_FDB_TYPE_REGULAR,
+ flow_id);
+ }
+ bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
+ return 0;
+}
+
+/*
+ * Flush all flows in the flow database that are associated with the session.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ *
+ * returns 0 on success or negative number on failure
+ */
+int32_t
+ulp_flow_db_session_flow_flush(struct bnxt_ulp_context *ulp_ctx)
+{
+ /*
+ * TBD: Tf core implementation of FW session flush shall change this
+ * implementation.
+ */
+ return ulp_flow_db_flush_flows(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR);
+}
+
+/*
+ * Check that flow id matches the function id or not
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * flow_db [in] Ptr to flow table
+ * func_id [in] The func_id to be set, for reset pass zero.
+ *
+ * returns true on success or false on failure
+ */
+bool
+ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
+ uint32_t flow_id,
+ uint32_t func_id)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Flow database not found\n");
+ return false;
+ }
+
+ /* set the function id in the function table */
+ if (flow_id < flow_db->func_id_tbl_size && func_id &&
+ flow_db->func_id_tbl[flow_id] == func_id)
+ return true;
+
+ return false;
+}
+
+/*
+ * Internal api to traverse the resource list within a flow
+ * and match a resource based on resource func and resource
+ * sub type. This api should be used only for resources that
+ * are unique and do not have multiple instances of resource
+ * func and sub type combination since it will return only
+ * the first match.
+ */
+static int32_t
+ulp_flow_db_resource_hndl_get(struct bnxt_ulp_context *ulp_ctx,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t flow_id,
+ uint32_t resource_func,
+ uint32_t res_subtype,
+ uint64_t *res_hndl)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *fid_res;
+ uint32_t res_id;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Flow database not found\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+
+ /* check for limits of fid */
+ if (flow_id >= flow_tbl->num_flows || !flow_id) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, flow_id)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+ /* Iterate the resource to get the resource handle */
+ res_id = flow_id;
+ while (res_id) {
+ fid_res = &flow_tbl->flow_resources[res_id];
+ if (ulp_flow_db_resource_func_get(fid_res) == resource_func) {
+ if (resource_func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER) {
+ if (res_subtype == fid_res->resource_sub_type) {
+ *res_hndl = fid_res->resource_hndl;
+ return 0;
+ }
+
+ } else if (resource_func ==
+ BNXT_ULP_RESOURCE_FUNC_EXT_EM_TABLE ||
+ resource_func ==
+ BNXT_ULP_RESOURCE_FUNC_INT_EM_TABLE) {
+ *res_hndl = fid_res->resource_em_handle;
+ return 0;
+ }
+ }
+ res_id = 0;
+ ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
+ }
+ return -ENOENT;
+}
+
+/*
+ * Api to get the cfa action pointer from a flow.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * flow_id [in] flow id
+ * cfa_action [out] The resource handle stored in the flow database
+ *
+ * returns 0 on success
+ */
+int32_t
+ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context *ulp_ctx,
+ uint32_t flow_id,
+ uint16_t *cfa_action)
+{
+ uint8_t sub_type = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TYPE_VFR_CFA_ACTION;
+ uint64_t hndl;
+ int32_t rc;
+
+ rc = ulp_flow_db_resource_hndl_get(ulp_ctx,
+ BNXT_ULP_FDB_TYPE_DEFAULT,
+ flow_id,
+ BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE,
+ sub_type, &hndl);
+ if (rc) {
+ BNXT_TF_DBG(ERR, "CFA Action ptr not found for flow id %u\n",
+ flow_id);
+ return -ENOENT;
+ }
+ *cfa_action = hndl;
+ return 0;
+}
+
+/*
+ * Allocate the entry in the parent-child database
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * fid [in] The flow id to the flow entry
+ *
+ * returns index on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_parent_flow_alloc(struct bnxt_ulp_context *ulp_ctxt,
+ uint32_t fid)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct ulp_fdb_parent_child_db *p_pdb;
+ uint32_t idx, free_idx = 0;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ /* check for max flows */
+ if (fid >= flow_db->flow_tbl.num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* No support for parent child db then just exit */
+ if (!flow_db->parent_child_db.entries_count) {
+ BNXT_TF_DBG(ERR, "parent child db not supported\n");
+ return -EINVAL;
+ }
+
+ p_pdb = &flow_db->parent_child_db;
+ for (idx = 0; idx <= p_pdb->entries_count; idx++) {
+ if (p_pdb->parent_flow_tbl[idx].parent_fid == fid) {
+ BNXT_TF_DBG(ERR, "fid is already allocated\n");
+ return -EINVAL;
+ }
+ if (!p_pdb->parent_flow_tbl[idx].parent_fid && !free_idx)
+ free_idx = idx + 1;
+ }
+ /* no free slots */
+ if (!free_idx) {
+ BNXT_TF_DBG(ERR, "parent child db is full\n");
+ return -ENOMEM;
+ }
+
+ free_idx -= 1;
+ /* set the Fid in the parent child */
+ p_pdb->parent_flow_tbl[free_idx].parent_fid = fid;
+ return free_idx;
+}
+
+/*
+ * Free the entry in the parent-child database
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * fid [in] The flow id to the flow entry
+ *
+ * returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_parent_flow_free(struct bnxt_ulp_context *ulp_ctxt,
+ uint32_t fid)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct ulp_fdb_parent_child_db *p_pdb;
+ uint32_t idx;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ /* check for max flows */
+ if (fid >= flow_db->flow_tbl.num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index\n");
+ return -EINVAL;
+ }
+
+ /* No support for parent child db then just exit */
+ if (!flow_db->parent_child_db.entries_count) {
+ BNXT_TF_DBG(ERR, "parent child db not supported\n");
+ return -EINVAL;
+ }
+
+ p_pdb = &flow_db->parent_child_db;
+ for (idx = 0; idx <= p_pdb->entries_count; idx++) {
+ if (p_pdb->parent_flow_tbl[idx].parent_fid == fid) {
+ /* free the contents */
+ p_pdb->parent_flow_tbl[idx].parent_fid = 0;
+ memset(p_pdb->parent_flow_tbl[idx].child_fid_bitset,
+ 0, p_pdb->child_bitset_size);
+ return 0;
+ }
+ }
+ BNXT_TF_DBG(ERR, "parent entry not found = %x\n", fid);
+ return -EINVAL;
+}
+
+/*
+ * Set or reset the child flow in the parent-child database
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * parent_fid [in] The flow id of the parent flow entry
+ * child_fid [in] The flow id of the child flow entry
+ * set_flag [in] Use 1 for setting child, 0 to reset
+ *
+ * returns zero on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_parent_child_flow_set(struct bnxt_ulp_context *ulp_ctxt,
+ uint32_t parent_fid,
+ uint32_t child_fid,
+ uint32_t set_flag)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct ulp_fdb_parent_child_db *p_pdb;
+ uint32_t idx, a_idx;
+ uint64_t *t;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ /* check for fid validity */
+ if (parent_fid >= flow_db->flow_tbl.num_flows || !parent_fid) {
+ BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_fid);
+ return -EINVAL;
+ }
+
+ /* check for fid validity */
+ if (child_fid >= flow_db->flow_tbl.num_flows || !child_fid) {
+ BNXT_TF_DBG(ERR, "Invalid child flow index %x\n", child_fid);
+ return -EINVAL;
+ }
+
+ /* No support for parent child db then just exit */
+ if (!flow_db->parent_child_db.entries_count) {
+ BNXT_TF_DBG(ERR, "parent child db not supported\n");
+ return -EINVAL;
+ }
+
+ p_pdb = &flow_db->parent_child_db;
+ a_idx = child_fid / ULP_INDEX_BITMAP_SIZE;
+ for (idx = 0; idx <= p_pdb->entries_count; idx++) {
+ if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
+ t = p_pdb->parent_flow_tbl[idx].child_fid_bitset;
+ if (set_flag)
+ ULP_INDEX_BITMAP_SET(t[a_idx], child_fid);
+ else
+ ULP_INDEX_BITMAP_RESET(t[a_idx], child_fid);
+ return 0;
+ }
+ }
+ BNXT_TF_DBG(ERR, "Unable to set the parent-child flow %x:%x\n",
+ parent_fid, child_fid);
+ return -1;
+}
+
+/*
+ * Get the parent index from the parent-child database
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * parent_fid [in] The flow id of the parent flow entry
+ * parent_idx [out] The parent index of parent flow entry
+ *
+ * returns zero on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_parent_flow_idx_get(struct bnxt_ulp_context *ulp_ctxt,
+ uint32_t parent_fid,
+ uint32_t *parent_idx)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct ulp_fdb_parent_child_db *p_pdb;
+ uint32_t idx;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ /* check for fid validity */
+ if (parent_fid >= flow_db->flow_tbl.num_flows || !parent_fid) {
+ BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_fid);
+ return -EINVAL;
+ }
+
+ /* No support for parent child db then just exit */
+ if (!flow_db->parent_child_db.entries_count) {
+ BNXT_TF_DBG(ERR, "parent child db not supported\n");
+ return -EINVAL;
+ }
+
+ p_pdb = &flow_db->parent_child_db;
+ for (idx = 0; idx <= p_pdb->entries_count; idx++) {
+ if (p_pdb->parent_flow_tbl[idx].parent_fid == parent_fid) {
+ *parent_idx = idx;
+ return 0;
+ }
+ }
+ BNXT_TF_DBG(ERR, "Unable to get the parent flow %x\n", parent_fid);
+ return -1;
+}
+
+/*
+ * Get the next child flow in the parent-child database
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * parent_fid [in] The flow id of the parent flow entry
+ * child_fid [in/out] The flow id of the child flow entry
+ *
+ * returns zero on success and negative on failure.
+ * Pass child_fid as zero for first entry.
+ */
+int32_t
+ulp_flow_db_parent_child_flow_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
+ uint32_t parent_idx,
+ uint32_t *child_fid)
+{
+ struct ulp_fdb_parent_child_db *p_pdb;
+ uint32_t idx, s_idx, mod_fid;
+ uint32_t next_fid = *child_fid;
+ uint64_t *child_bitset;
+ uint64_t bs;
+
+ /* check for fid validity */
+ p_pdb = &flow_db->parent_child_db;
+ if (parent_idx >= p_pdb->entries_count ||
+ !p_pdb->parent_flow_tbl[parent_idx].parent_fid) {
+ BNXT_TF_DBG(ERR, "Invalid parent flow index %x\n", parent_idx);
+ return -EINVAL;
+ }
+
+ child_bitset = p_pdb->parent_flow_tbl[parent_idx].child_fid_bitset;
+ do {
+ /* increment the flow id to find the next valid flow id */
+ next_fid++;
+ if (next_fid >= flow_db->flow_tbl.num_flows)
+ return -ENOENT;
+ idx = next_fid / ULP_INDEX_BITMAP_SIZE;
+ mod_fid = next_fid % ULP_INDEX_BITMAP_SIZE;
+ s_idx = idx;
+ while (!(bs = child_bitset[idx])) {
+ idx++;
+ if ((idx * ULP_INDEX_BITMAP_SIZE) >=
+ flow_db->flow_tbl.num_flows)
+ return -ENOENT;
+ }
+ /*
+ * remove the previous bits in the bitset bs to find the
+ * next non zero bit in the bitset. This needs to be done
+ * only if the idx is same as he one you started.
+ */
+ if (s_idx == idx)
+ bs &= (-1UL >> mod_fid);
+ next_fid = (idx * ULP_INDEX_BITMAP_SIZE) + __builtin_clzl(bs);
+ if (*child_fid >= next_fid) {
+ BNXT_TF_DBG(ERR, "Parent Child Database is corrupt\n");
+ return -ENOENT;
+ }
+ idx = next_fid / ULP_INDEX_BITMAP_SIZE;
+ } while (!ULP_INDEX_BITMAP_GET(child_bitset[idx], next_fid));
+ *child_fid = next_fid;
+ return 0;
+}
+
+/*
+ * Orphan the child flow entry
+ * This is called only for child flows that have
+ * BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW resource
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * flow_type [in] Specify it is regular or default flow
+ * fid [in] The index to the flow entry
+ *
+ * Returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_child_flow_reset(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_fdb_type flow_type,
+ uint32_t fid)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *fid_res;
+ uint32_t res_id = 0;
+
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ if (flow_type > BNXT_ULP_FDB_TYPE_DEFAULT) {
+ BNXT_TF_DBG(ERR, "Invalid flow type\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl;
+ /* check for max flows */
+ if (fid >= flow_tbl->num_flows || !fid) {
+ BNXT_TF_DBG(ERR, "Invalid flow index %x\n", fid);
+ return -EINVAL;
+ }
+
+ /* check if the flow is active or not */
+ if (!ulp_flow_db_active_flows_bit_is_set(flow_db, flow_type, fid)) {
+ BNXT_TF_DBG(ERR, "flow does not exist\n");
+ return -EINVAL;
+ }
+
+ /* Iterate the resource to get the resource handle */
+ res_id = fid;
+ while (res_id) {
+ fid_res = &flow_tbl->flow_resources[res_id];
+ if (ulp_flow_db_resource_func_get(fid_res) ==
+ BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW) {
+ /* invalidate the resource details */
+ fid_res->resource_hndl = 0;
+ return 0;
+ }
+ res_id = 0;
+ ULP_FLOW_DB_RES_NXT_SET(res_id, fid_res->nxt_resource_idx);
+ }
+ /* failed */
+ return -1;
+}
+
+/*
+ * Create parent flow in the parent flow tbl
+ *
+ * parms [in] Ptr to mapper params
+ *
+ * Returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms *parms)
+{
+ struct ulp_flow_db_res_params fid_parms;
+ int32_t fid_idx;
+
+ /* create the child flow entry in parent flow table */
+ fid_idx = ulp_flow_db_parent_flow_alloc(parms->ulp_ctx, parms->fid);
+ if (fid_idx < 0) {
+ BNXT_TF_DBG(ERR, "Error in creating parent flow fid %x\n",
+ parms->fid);
+ return -1;
+ }
+
+ /* Add the parent details in the resource list of the flow */
+ memset(&fid_parms, 0, sizeof(fid_parms));
+ fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_PARENT_FLOW;
+ fid_parms.resource_hndl = fid_idx;
+ fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
+ if (ulp_flow_db_resource_add(parms->ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
+ parms->fid, &fid_parms)) {
+ BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
+ parms->fid);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Create child flow in the parent flow tbl
+ *
+ * parms [in] Ptr to mapper params
+ *
+ * Returns 0 on success and negative on failure.
+ */
+int32_t
+ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms *parms)
+{
+ struct ulp_flow_db_res_params fid_parms;
+ int32_t rc;
+
+ /* create the parent flow entry in parent flow table */
+ rc = ulp_flow_db_parent_child_flow_set(parms->ulp_ctx,
+ parms->parent_fid,
+ parms->fid, 1);
+ if (rc) {
+ BNXT_TF_DBG(ERR, "Error in setting child fid %x\n", parms->fid);
+ return -1;
+ }
+
+ /* Add the parent details in the resource list of the flow */
+ memset(&fid_parms, 0, sizeof(fid_parms));
+ fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW;
+ fid_parms.resource_hndl = parms->parent_fid;
+ fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
+ if (ulp_flow_db_resource_add(parms->ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
+ parms->fid, &fid_parms)) {
+ BNXT_TF_DBG(ERR, "Error in adding flow res for fid %x\n",
+ parms->fid);
+ return -1;
+ }
+ return 0;
+}