net/bnxt: get VF representor action record
authorKishore Padmanabha <kishore.padmanabha@broadcom.com>
Fri, 12 Jun 2020 12:50:14 +0000 (18:20 +0530)
committerFerruh Yigit <ferruh.yigit@intel.com>
Tue, 30 Jun 2020 12:52:30 +0000 (14:52 +0200)
Added flow db api to get the vf representor action
record for a given flow.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
drivers/net/bnxt/tf_ulp/ulp_flow_db.c
drivers/net/bnxt/tf_ulp/ulp_flow_db.h

index 30a809a..fc4c4da 100644 (file)
@@ -53,7 +53,7 @@ ulp_flow_db_active_flow_set(struct bnxt_ulp_flow_tbl  *flow_tbl,
 
 /*
  * Helper function to allocate the flow table and initialize
- *  is set.No validation being done in this function.
+ * is set.No validation being done in this function.
  *
  * flow_tbl [in] Ptr to flow table
  * idx [in] The index to bit to be set or reset.
@@ -71,6 +71,19 @@ ulp_flow_db_active_flow_is_set(struct bnxt_ulp_flow_tbl      *flow_tbl,
                                    idx);
 }
 
+static uint8_t
+ulp_flow_db_resource_func_get(struct ulp_fdb_resource_info *res_info)
+{
+       uint8_t func;
+
+       func = (((res_info->nxt_resource_idx & ULP_FLOW_DB_RES_FUNC_MASK) >>
+                ULP_FLOW_DB_RES_FUNC_BITS) << ULP_FLOW_DB_RES_FUNC_UPPER);
+       /* The reource func is split into upper and lower */
+       if (func & ULP_FLOW_DB_RES_FUNC_NEED_LOWER)
+               return (func | res_info->resource_func_lower);
+       return func;
+}
+
 /*
  * Helper function to copy the resource params to resource info
  *  No validation being done in this function.
@@ -124,23 +137,13 @@ static void
 ulp_flow_db_res_info_to_params(struct ulp_fdb_resource_info *resource_info,
                               struct ulp_flow_db_res_params *params)
 {
-       uint8_t resource_func_upper;
-
        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);
-       resource_func_upper = (((resource_info->nxt_resource_idx &
-                               ULP_FLOW_DB_RES_FUNC_MASK) >>
-                              ULP_FLOW_DB_RES_FUNC_BITS) <<
-                              ULP_FLOW_DB_RES_FUNC_UPPER);
 
-       /* The reource func is split into upper and lower */
-       if (resource_func_upper & ULP_FLOW_DB_RES_FUNC_NEED_LOWER)
-               params->resource_func = (resource_func_upper |
-                                        resource_info->resource_func_lower);
-       else
-               params->resource_func = resource_func_upper;
+       /* use the helper function to get the resource func */
+       params->resource_func = ulp_flow_db_resource_func_get(resource_info);
 
        if (params->resource_func == BNXT_ULP_RESOURCE_FUNC_EM_TABLE) {
                params->resource_hndl = resource_info->resource_em_handle;
@@ -852,3 +855,174 @@ ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
 
        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_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,
+                                  uint32_t *cfa_action)
+{
+       uint8_t sub_type = BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TYPE_VFR_ACT_IDX;
+       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_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
index 9037dc5..357a589 100644 (file)
@@ -222,4 +222,29 @@ ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
                               uint32_t flow_id,
                               uint32_t func_id);
 
+/*
+ * 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,
+                                  uint32_t *cfa_action);
+
+#ifdef RTE_LIBRTE_BNXT_TRUFLOW_DEBUG
+/*
+ * 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);
+#endif
+
 #endif /* _ULP_FLOW_DB_H_ */