+
+/*
+ * 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
+ * tbl_idx [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_flow_db_tables tbl_idx,
+ 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 (tbl_idx >= BNXT_ULP_FLOW_TABLE_MAX) {
+ BNXT_TF_DBG(ERR, "Invalid table index\n");
+ return -EINVAL;
+ }
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+
+ /* 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_flow_is_set(flow_tbl, 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
+ * tbl_idx [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_fid_free(struct bnxt_ulp_context *ulp_ctxt,
+ enum bnxt_ulp_flow_db_tables tbl_idx,
+ 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 (tbl_idx >= BNXT_ULP_FLOW_TABLE_MAX) {
+ BNXT_TF_DBG(ERR, "Invalid table index\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+
+ /* 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_flow_is_set(flow_tbl, 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;
+ ulp_flow_db_active_flow_set(flow_tbl, fid, 0);
+ if (tbl_idx == BNXT_ULP_REGULAR_FLOW_TABLE)
+ 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
+ * tbl_idx [in] Specify it is regular or default flow
+ * 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_flow_db_tables tbl_idx,
+ 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 (tbl_idx >= BNXT_ULP_FLOW_TABLE_MAX) {
+ BNXT_TF_DBG(ERR, "Invalid table index\n");
+ return -EINVAL;
+ }
+
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+
+ /* 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_flow_is_set(flow_tbl, 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
+ * 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_tbl *flowtbl,
+ uint32_t *fid)
+{
+ uint32_t lfid = *fid;
+ uint32_t idx, s_idx, mod_fid;
+ uint64_t bs;
+
+ 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 = flowtbl->active_flow_tbl[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_flow_is_set(flowtbl, lfid));
+
+ /* all good, return success */
+ *fid = lfid;
+ return 0;
+}
+
+/*
+ * Flush all flows in the flow database.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * tbl_idx [in] The index to table
+ *
+ * returns 0 on success or negative number on failure
+ */
+int32_t ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
+ uint32_t idx)
+{
+ uint32_t fid = 0;
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+
+ 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;
+ }
+ flow_tbl = &flow_db->flow_tbl[idx];
+ while (!ulp_flow_db_next_entry_get(flow_tbl, &fid))
+ ulp_mapper_resources_free(ulp_ctx, fid, idx);
+
+ return 0;
+}
+
+/*
+ * Flush all flows in the flow database that belong to a device function.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * tbl_idx [in] The index to table
+ *
+ * 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;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+
+ 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;
+ }
+ flow_tbl = &flow_db->flow_tbl[BNXT_ULP_REGULAR_FLOW_TABLE];
+ while (!ulp_flow_db_next_entry_get(flow_tbl, &flow_id)) {
+ if (flow_db->func_id_tbl[flow_id] == func_id)
+ ulp_mapper_resources_free(ulp_ctx, flow_id,
+ BNXT_ULP_REGULAR_FLOW_TABLE);
+ }
+
+ 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_REGULAR_FLOW_TABLE);
+}
+
+/*
+ * 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_flow_db_tables tbl_idx,
+ 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;
+ }
+
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+
+ /* 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_flow_is_set(flow_tbl, 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_DEFAULT_FLOW_TABLE,
+ 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;
+}
+
+#ifdef RTE_LIBRTE_BNXT_TRUFLOW_DEBUG
+/*
+ * Dump the entry details
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ *
+ * returns none
+ */
+static void ulp_flow_db_res_dump(struct ulp_fdb_resource_info *r,
+ uint32_t *nxt_res)
+{
+ uint8_t res_func = ulp_flow_db_resource_func_get(r);
+
+ BNXT_TF_DBG(DEBUG, "Resource func = %x, nxt_resource_idx = %x\n",
+ res_func, (ULP_FLOW_DB_RES_NXT_MASK & r->nxt_resource_idx));
+ if (res_func == BNXT_ULP_RESOURCE_FUNC_EXT_EM_TABLE ||
+ res_func == BNXT_ULP_RESOURCE_FUNC_INT_EM_TABLE)
+ BNXT_TF_DBG(DEBUG, "EM Handle = 0x%016" PRIX64 "\n",
+ r->resource_em_handle);
+ else
+ BNXT_TF_DBG(DEBUG, "Handle = 0x%08x\n", r->resource_hndl);
+
+ *nxt_res = 0;
+ ULP_FLOW_DB_RES_NXT_SET(*nxt_res,
+ r->nxt_resource_idx);
+}
+
+/*
+ * Dump the flow database entry details
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ *
+ * returns none
+ */
+int32_t ulp_flow_db_debug_dump(struct bnxt_ulp_context *ulp_ctxt)
+{
+ struct bnxt_ulp_flow_db *flow_db;
+ struct bnxt_ulp_flow_tbl *flow_tbl;
+ struct ulp_fdb_resource_info *r;
+ uint32_t nxt_res = 0;
+ enum bnxt_ulp_flow_db_tables tbl_idx;
+ uint32_t fid;
+
+ if (!ulp_ctxt || !ulp_ctxt->cfg_data) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+ flow_db = bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctxt);
+ if (!flow_db) {
+ BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+ return -EINVAL;
+ }
+
+ for (tbl_idx = 0; tbl_idx < BNXT_ULP_FLOW_TABLE_MAX; tbl_idx++) {
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+ BNXT_TF_DBG(DEBUG, "Dump Tbl index = %u, flows = %u:%u\n",
+ tbl_idx, flow_tbl->num_flows,
+ flow_tbl->num_resources);
+ BNXT_TF_DBG(DEBUG, "Head_index = %u, Tail_index = %u\n",
+ flow_tbl->head_index, flow_tbl->tail_index);
+ for (fid = 0; fid < flow_tbl->num_flows; fid++) {
+ if (ulp_flow_db_active_flow_is_set(flow_tbl, fid)) {
+ BNXT_TF_DBG(DEBUG, "fid = %u\n", fid);
+ /* iterate the resource */
+ nxt_res = fid;
+ do {
+ r = &flow_tbl->flow_resources[nxt_res];
+ ulp_flow_db_res_dump(r, &nxt_res);
+ } while (nxt_res);
+ }
+ }
+ BNXT_TF_DBG(DEBUG, "Done.\n");
+ }
+ return 0;
+}
+#endif