From cd7c298af7df73f3b9138a9a3e46338891b4d55d Mon Sep 17 00:00:00 2001 From: Kishore Padmanabha Date: Wed, 15 Apr 2020 20:19:08 +0530 Subject: [PATCH] net/bnxt: add flow database resource iteration API This API can be used to iterate individual resource functions in the flow database. Reviewed-by: Mike Baucom Reviewed-by: Ajit Khaparde Signed-off-by: Kishore Padmanabha Signed-off-by: Venkat Duvvuru --- drivers/net/bnxt/tf_ulp/ulp_flow_db.c | 66 ++++++++++++++++++++++++++- drivers/net/bnxt/tf_ulp/ulp_flow_db.h | 17 +++++++ 2 files changed, 82 insertions(+), 1 deletion(-) diff --git a/drivers/net/bnxt/tf_ulp/ulp_flow_db.c b/drivers/net/bnxt/tf_ulp/ulp_flow_db.c index e99e94ab7b..9e7f9f5e3b 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_flow_db.c +++ b/drivers/net/bnxt/tf_ulp/ulp_flow_db.c @@ -560,7 +560,71 @@ int32_t ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt, return 0; } -/** Get the flow database entry iteratively +/* + * 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 diff --git a/drivers/net/bnxt/tf_ulp/ulp_flow_db.h b/drivers/net/bnxt/tf_ulp/ulp_flow_db.h index 5435415655..5361dd0254 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_flow_db.h +++ b/drivers/net/bnxt/tf_ulp/ulp_flow_db.h @@ -142,6 +142,23 @@ int32_t ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt, enum bnxt_ulp_flow_db_tables tbl_idx, uint32_t fid); +/* + *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); + /* * Flush all flows in the flow database. * -- 2.20.1