}
}
+/*
+ * 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;
*
* 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,
- uint32_t *fid)
+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;
+ 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);
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;
}
}
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;
uint32_t *fid)
{
uint32_t lfid = *fid;
- uint32_t idx;
+ 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");
}
flow_tbl = &flow_db->flow_tbl[idx];
while (!ulp_flow_db_next_entry_get(flow_tbl, &fid))
- (void)ulp_mapper_resources_free(ulp_ctx, fid, idx);
+ 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