ULP_FLOW_DB_RES_NXT_MASK); }
#define ULP_FLOW_DB_RES_NXT_RESET(dst) ((dst) &= ~(ULP_FLOW_DB_RES_NXT_MASK))
+/*
+ * Helper function to set the bit in the active flow table
+ * No validation is done in this function.
+ *
+ * flow_tbl [in] Ptr to flow table
+ * idx [in] The index to bit to be set or reset.
+ * flag [in] 1 to set and 0 to reset.
+ *
+ * returns none
+ */
+static void
+ulp_flow_db_active_flow_set(struct bnxt_ulp_flow_tbl *flow_tbl,
+ uint32_t idx,
+ uint32_t flag)
+{
+ uint32_t active_index;
+
+ active_index = idx / ULP_INDEX_BITMAP_SIZE;
+ if (flag)
+ ULP_INDEX_BITMAP_SET(flow_tbl->active_flow_tbl[active_index],
+ idx);
+ else
+ ULP_INDEX_BITMAP_RESET(flow_tbl->active_flow_tbl[active_index],
+ idx);
+}
+
/*
* Helper function to allocate the flow table and initialize
* is set.No validation being done in this function.
}
}
+/*
+ * Helper function to copy the resource params to resource info
+ * No validation being done in this function.
+ *
+ * resource_info [in] Ptr to resource information
+ * params [out] The output params to the caller
+ *
+ * returns none
+ */
+static void
+ulp_flow_db_res_info_to_params(struct ulp_fdb_resource_info *resource_info,
+ struct ulp_flow_db_res_params *params)
+{
+ memset(params, 0, sizeof(struct ulp_flow_db_res_params));
+ params->direction = ((resource_info->nxt_resource_idx &
+ ULP_FLOW_DB_RES_DIR_MASK) >>
+ ULP_FLOW_DB_RES_DIR_BIT);
+ params->resource_func = ((resource_info->nxt_resource_idx &
+ ULP_FLOW_DB_RES_FUNC_MASK) >>
+ ULP_FLOW_DB_RES_FUNC_BITS);
+
+ if (params->resource_func != BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
+ params->resource_hndl = resource_info->resource_hndl;
+ params->resource_type = resource_info->resource_type;
+ } else {
+ params->resource_hndl = resource_info->resource_em_handle;
+ }
+}
+
/*
* Helper function to allocate the flow table and initialize
* the stack for allocation operations.
}
/*
- * Helper function to de allocate the flow table.
+ * Helper function to deallocate the flow table.
*
* flow_db [in] Ptr to flow database structure
* tbl_idx [in] The index to table creation.
}
}
+/*
+ * Helper function to add function id to the flow table
+ *
+ * flow_db [in] Ptr to flow table
+ * flow_id [in] The flow id of the flow
+ * func_id [in] The func_id to be set, for reset pass zero
+ *
+ * returns none
+ */
+static void
+ulp_flow_db_func_id_set(struct bnxt_ulp_flow_db *flow_db,
+ uint32_t flow_id,
+ uint32_t func_id)
+{
+ /* set the function id in the function table */
+ if (flow_id < flow_db->func_id_tbl_size)
+ flow_db->func_id_tbl[flow_id] = func_id;
+ else /* This should never happen */
+ BNXT_TF_DBG(ERR, "Invalid flow id, flowdb corrupt\n");
+}
+
/*
* Initialize the flow database. Memory is allocated in this
* call and assigned to the flow database.
if (!flow_db) {
BNXT_TF_DBG(ERR,
"Failed to allocate memory for flow table ptr\n");
- goto error_free;
+ return -ENOMEM;
}
/* Attach the flow database to the ulp context. */
if (ulp_flow_db_alloc_resource(flow_db, BNXT_ULP_DEFAULT_FLOW_TABLE))
goto error_free;
+ /* add 1 since we are not using index 0 for flow id */
+ flow_db->func_id_tbl_size = dparms->num_flows + 1;
+ /* Allocate the function Id table */
+ flow_db->func_id_tbl = rte_zmalloc("bnxt_ulp_flow_db_func_id_table",
+ flow_db->func_id_tbl_size *
+ sizeof(uint16_t), 0);
+ if (!flow_db->func_id_tbl) {
+ BNXT_TF_DBG(ERR,
+ "Failed to allocate mem for flow table func id\n");
+ goto error_free;
+ }
/* All good so return. */
return 0;
error_free:
/* Free up all the memory. */
ulp_flow_db_dealloc_resource(flow_db, BNXT_ULP_REGULAR_FLOW_TABLE);
ulp_flow_db_dealloc_resource(flow_db, BNXT_ULP_DEFAULT_FLOW_TABLE);
+ rte_free(flow_db->func_id_tbl);
rte_free(flow_db);
return 0;
}
+/*
+ * Allocate the flow database entry
+ *
+ * ulp_ctxt [in] Ptr to ulp_context
+ * tbl_idx [in] Specify it is regular or default flow
+ * 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_flow_db_tables tbl_idx,
+ 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;
+ }
+
+ flow_tbl = &flow_db->flow_tbl[tbl_idx];
+ /* 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++;
+ ulp_flow_db_active_flow_set(flow_tbl, *fid, 1);
+
+ /* The function id update is only valid for regular flow table */
+ if (tbl_idx == BNXT_ULP_REGULAR_FLOW_TABLE)
+ ulp_flow_db_func_id_set(flow_db, *fid, func_id);
+
+ /* all good, return success */
+ return 0;
+}
+
/*
* Allocate the flow database entry.
* The params->critical_resource has to be set to 0 to allocate a new resource.
}
/* check for max resource */
- if ((flow_tbl->num_flows + 1) >= flow_tbl->tail_index) {
+ if ((flow_tbl->head_index + 1) >= flow_tbl->tail_index) {
BNXT_TF_DBG(ERR, "Flow db has reached max resources\n");
return -ENOMEM;
}
/* 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
+ * 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);
+ }
+
+ /* 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;
+}
git.droids-corp.org / dpdk.git / blobdiff