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net/bnxt: add flow database resource iteration API

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This API can be used to iterate individual resource
functions in the flow database.

Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
This commit is contained in:
Kishore Padmanabha 2020-04-15 20:19:08 +05:30 committed by Ferruh Yigit
parent 5a640d0010
commit cd7c298af7
2 changed files with 82 additions and 1 deletions
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66
drivers/net/bnxt/tf_ulp/ulp_flow_db.c
View File

@ -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

17
drivers/net/bnxt/tf_ulp/ulp_flow_db.h
View File

@ -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.
*