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numam-dpdk/drivers/net/bnxt/tf_ulp/ulp_mapper.c
Kishore Padmanabha dcb8901bc6 net/bnxt: add TCAM table processing for search and alloc 
Added support for tcam table processing to enable the search
and allocate support. This also includes the tcam entry update
support.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
2020-07-30 00:41:23 +02:00

2982 lines
82 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2014-2020 Broadcom
* All rights reserved.
*/
#include <rte_log.h>
#include <rte_malloc.h>
#include "bnxt.h"
#include "ulp_template_db_enum.h"
#include "ulp_template_struct.h"
#include "bnxt_tf_common.h"
#include "ulp_utils.h"
#include "bnxt_ulp.h"
#include "tfp.h"
#include "tf_ext_flow_handle.h"
#include "ulp_mark_mgr.h"
#include "ulp_flow_db.h"
#include "ulp_mapper.h"
#include "tf_util.h"
static struct bnxt_ulp_glb_resource_info *
ulp_mapper_glb_resource_info_list_get(uint32_t *num_entries)
{
if (!num_entries)
return NULL;
*num_entries = BNXT_ULP_GLB_RESOURCE_TBL_MAX_SZ;
return ulp_glb_resource_tbl;
}
/*
* Read the global resource from the mapper global resource list
*
* The regval is always returned in big-endian.
*
* returns 0 on success
*/
static int32_t
ulp_mapper_glb_resource_read(struct bnxt_ulp_mapper_data *mapper_data,
enum tf_dir dir,
uint16_t idx,
uint64_t *regval)
{
if (!mapper_data || !regval ||
dir >= TF_DIR_MAX || idx >= BNXT_ULP_GLB_REGFILE_INDEX_LAST)
return -EINVAL;
*regval = mapper_data->glb_res_tbl[dir][idx].resource_hndl;
return 0;
}
/*
* Write a global resource to the mapper global resource list
*
* The regval value must be in big-endian.
*
* return 0 on success.
*/
static int32_t
ulp_mapper_glb_resource_write(struct bnxt_ulp_mapper_data *data,
struct bnxt_ulp_glb_resource_info *res,
uint64_t regval)
{
struct bnxt_ulp_mapper_glb_resource_entry *ent;
/* validate the arguments */
if (!data || res->direction >= TF_DIR_MAX ||
res->glb_regfile_index >= BNXT_ULP_GLB_REGFILE_INDEX_LAST)
return -EINVAL;
/* write to the mapper data */
ent = &data->glb_res_tbl[res->direction][res->glb_regfile_index];
ent->resource_func = res->resource_func;
ent->resource_type = res->resource_type;
ent->resource_hndl = regval;
return 0;
}
/*
* Internal function to allocate identity resource and store it in mapper data.
*
* returns 0 on success
*/
static int32_t
ulp_mapper_resource_ident_allocate(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mapper_data *mapper_data,
struct bnxt_ulp_glb_resource_info *glb_res)
{
struct tf_alloc_identifier_parms iparms = { 0 };
struct tf_free_identifier_parms fparms;
uint64_t regval;
struct tf *tfp;
int32_t rc = 0;
tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
if (!tfp)
return -EINVAL;
iparms.ident_type = glb_res->resource_type;
iparms.dir = glb_res->direction;
/* Allocate the Identifier using tf api */
rc = tf_alloc_identifier(tfp, &iparms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to alloc identifier [%s][%d]\n",
(iparms.dir == TF_DIR_RX) ? "RX" : "TX",
iparms.ident_type);
return rc;
}
/* entries are stored as big-endian format */
regval = tfp_cpu_to_be_64((uint64_t)iparms.id);
/* write to the mapper global resource */
rc = ulp_mapper_glb_resource_write(mapper_data, glb_res, regval);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to write to global resource id\n");
/* Free the identifier when update failed */
fparms.dir = iparms.dir;
fparms.ident_type = iparms.ident_type;
fparms.id = iparms.id;
tf_free_identifier(tfp, &fparms);
return rc;
}
return rc;
}
/*
* Internal function to allocate index tbl resource and store it in mapper data.
*
* returns 0 on success
*/
static int32_t
ulp_mapper_resource_index_tbl_alloc(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mapper_data *mapper_data,
struct bnxt_ulp_glb_resource_info *glb_res)
{
struct tf_alloc_tbl_entry_parms aparms = { 0 };
struct tf_free_tbl_entry_parms free_parms = { 0 };
uint64_t regval;
struct tf *tfp;
uint32_t tbl_scope_id;
int32_t rc = 0;
tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
if (!tfp)
return -EINVAL;
/* Get the scope id */
rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp_ctx, &tbl_scope_id);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to get table scope rc=%d\n", rc);
return rc;
}
aparms.type = glb_res->resource_type;
aparms.dir = glb_res->direction;
aparms.search_enable = BNXT_ULP_SEARCH_BEFORE_ALLOC_NO;
aparms.tbl_scope_id = tbl_scope_id;
/* Allocate the index tbl using tf api */
rc = tf_alloc_tbl_entry(tfp, &aparms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to alloc identifier [%s][%d]\n",
(aparms.dir == TF_DIR_RX) ? "RX" : "TX",
aparms.type);
return rc;
}
/* entries are stored as big-endian format */
regval = tfp_cpu_to_be_64((uint64_t)aparms.idx);
/* write to the mapper global resource */
rc = ulp_mapper_glb_resource_write(mapper_data, glb_res, regval);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to write to global resource id\n");
/* Free the identifier when update failed */
free_parms.dir = aparms.dir;
free_parms.type = aparms.type;
free_parms.idx = aparms.idx;
tf_free_tbl_entry(tfp, &free_parms);
return rc;
}
return rc;
}
/* Retrieve the cache initialization parameters for the tbl_idx */
static struct bnxt_ulp_cache_tbl_params *
ulp_mapper_cache_tbl_params_get(uint32_t tbl_idx)
{
if (tbl_idx >= BNXT_ULP_CACHE_TBL_MAX_SZ)
return NULL;
return &ulp_cache_tbl_params[tbl_idx];
}
/* Retrieve the global template table */
static uint32_t *
ulp_mapper_glb_template_table_get(uint32_t *num_entries)
{
if (!num_entries)
return NULL;
*num_entries = BNXT_ULP_GLB_TEMPLATE_TBL_MAX_SZ;
return ulp_glb_template_tbl;
}
/*
* Get the size of the action property for a given index.
*
* idx [in] The index for the action property
*
* returns the size of the action property.
*/
static uint32_t
ulp_mapper_act_prop_size_get(uint32_t idx)
{
if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST)
return 0;
return ulp_act_prop_map_table[idx];
}
/*
* Get the list of result fields that implement the flow action.
* Gets a device dependent list of tables that implement the action template id.
*
* dev_id [in] The device id of the forwarding element
*
* tid [in] The action template id that matches the flow
*
* num_tbls [out] The number of action tables in the returned array
*
* Returns An array of action tables to implement the flow, or NULL on error.
*/
static struct bnxt_ulp_mapper_tbl_info *
ulp_mapper_action_tbl_list_get(uint32_t dev_id,
uint32_t tid,
uint32_t *num_tbls)
{
uint32_t idx;
uint32_t tidx;
if (!num_tbls) {
BNXT_TF_DBG(ERR, "Invalid arguments\n");
return NULL;
}
/* template shift and device mask */
tidx = ULP_DEVICE_PARAMS_INDEX(tid, dev_id);
/* NOTE: Need to have something from template compiler to help validate
* range of dev_id and act_tid
*/
idx = ulp_act_tmpl_list[tidx].start_tbl_idx;
*num_tbls = ulp_act_tmpl_list[tidx].num_tbls;
return &ulp_act_tbl_list[idx];
}
/*
* Get a list of classifier tables that implement the flow
* Gets a device dependent list of tables that implement the class template id
*
* dev_id [in] The device id of the forwarding element
*
* tid [in] The template id that matches the flow
*
* num_tbls [out] The number of classifier tables in the returned array
*
* fdb_tbl_idx [out] The flow database index Regular or default
*
* returns An array of classifier tables to implement the flow, or NULL on
* error
*/
static struct bnxt_ulp_mapper_tbl_info *
ulp_mapper_class_tbl_list_get(uint32_t dev_id,
uint32_t tid,
uint32_t *num_tbls,
uint32_t *fdb_tbl_idx)
{
uint32_t idx;
uint32_t tidx = ULP_DEVICE_PARAMS_INDEX(tid, dev_id);
if (!num_tbls)
return NULL;
/* NOTE: Need to have something from template compiler to help validate
* range of dev_id and tid
*/
idx = ulp_class_tmpl_list[tidx].start_tbl_idx;
*num_tbls = ulp_class_tmpl_list[tidx].num_tbls;
*fdb_tbl_idx = ulp_class_tmpl_list[tidx].flow_db_table_type;
return &ulp_class_tbl_list[idx];
}
/*
* Get the list of key fields that implement the flow.
*
* ctxt [in] The ulp context
*
* tbl [in] A single table instance to get the key fields from
*
* num_flds [out] The number of key fields in the returned array
*
* Returns array of Key fields, or NULL on error.
*/
static struct bnxt_ulp_mapper_class_key_field_info *
ulp_mapper_key_fields_get(struct bnxt_ulp_mapper_tbl_info *tbl,
uint32_t *num_flds)
{
uint32_t idx;
if (!tbl || !num_flds)
return NULL;
idx = tbl->key_start_idx;
*num_flds = tbl->key_num_fields;
/* NOTE: Need template to provide range checking define */
return &ulp_class_key_field_list[idx];
}
/*
* Get the list of data fields that implement the flow.
*
* ctxt [in] The ulp context
*
* tbl [in] A single table instance to get the data fields from
*
* num_flds [out] The number of data fields in the returned array.
*
* Returns array of data fields, or NULL on error.
*/
static struct bnxt_ulp_mapper_result_field_info *
ulp_mapper_result_fields_get(struct bnxt_ulp_mapper_tbl_info *tbl,
uint32_t *num_flds,
uint32_t *num_encap_flds)
{
uint32_t idx;
if (!tbl || !num_flds)
return NULL;
idx = tbl->result_start_idx;
*num_flds = tbl->result_num_fields;
*num_encap_flds = tbl->encap_num_fields;
/* NOTE: Need template to provide range checking define */
return &ulp_class_result_field_list[idx];
}
/*
* Get the list of result fields that implement the flow action.
*
* tbl [in] A single table instance to get the results fields
* from num_flds [out] The number of data fields in the returned
* array.
*
* Returns array of data fields, or NULL on error.
*/
static struct bnxt_ulp_mapper_result_field_info *
ulp_mapper_act_result_fields_get(struct bnxt_ulp_mapper_tbl_info *tbl,
uint32_t *num_rslt_flds,
uint32_t *num_encap_flds)
{
uint32_t idx;
if (!tbl || !num_rslt_flds || !num_encap_flds)
return NULL;
idx = tbl->result_start_idx;
*num_rslt_flds = tbl->result_num_fields;
*num_encap_flds = tbl->encap_num_fields;
/* NOTE: Need template to provide range checking define */
return &ulp_act_result_field_list[idx];
}
/*
* Get the list of ident fields that implement the flow
*
* tbl [in] A single table instance to get the ident fields from
*
* num_flds [out] The number of ident fields in the returned array
*
* returns array of ident fields, or NULL on error
*/
static struct bnxt_ulp_mapper_ident_info *
ulp_mapper_ident_fields_get(struct bnxt_ulp_mapper_tbl_info *tbl,
uint32_t *num_flds)
{
uint32_t idx;
if (!tbl || !num_flds)
return NULL;
idx = tbl->ident_start_idx;
*num_flds = tbl->ident_nums;
/* NOTE: Need template to provide range checking define */
return &ulp_ident_list[idx];
}
static struct bnxt_ulp_mapper_cache_entry *
ulp_mapper_cache_entry_get(struct bnxt_ulp_context *ulp,
uint32_t id,
uint16_t key)
{
struct bnxt_ulp_mapper_data *mapper_data;
mapper_data = bnxt_ulp_cntxt_ptr2_mapper_data_get(ulp);
if (!mapper_data || id >= BNXT_ULP_CACHE_TBL_MAX_SZ ||
!mapper_data->cache_tbl[id]) {
BNXT_TF_DBG(ERR, "Unable to acquire the cache tbl (%d)\n", id);
return NULL;
}
return &mapper_data->cache_tbl[id][key];
}
/*
* Concatenates the tbl_type and tbl_id into a 32bit value for storing in the
* resource_type. This is done to conserve memory since both the tbl_type and
* tbl_id are 16bit.
*/
static inline void
ulp_mapper_cache_res_type_set(struct ulp_flow_db_res_params *res,
uint16_t tbl_type,
uint16_t tbl_id)
{
res->resource_type = tbl_type;
res->resource_sub_type = tbl_id;
}
/* Extracts the tbl_type and tbl_id from the 32bit resource type. */
static inline void
ulp_mapper_cache_res_type_get(struct ulp_flow_db_res_params *res,
uint16_t *tbl_type,
uint16_t *tbl_id)
{
*tbl_type = res->resource_type;
*tbl_id = res->resource_sub_type;
}
static int32_t
ulp_mapper_cache_entry_free(struct bnxt_ulp_context *ulp,
struct tf *tfp,
struct ulp_flow_db_res_params *res)
{
struct bnxt_ulp_mapper_cache_entry *cache_entry;
struct tf_free_identifier_parms ident_parms;
struct tf_free_tcam_entry_parms tcam_parms;
uint16_t table_id, table_type;
int32_t rc, trc, i;
/*
* The table id, used for cache, and table_type, used for tcam, are
* both encoded within the resource. We must first extract them to
* formulate the args for tf calls.
*/
ulp_mapper_cache_res_type_get(res, &table_type, &table_id);
cache_entry = ulp_mapper_cache_entry_get(ulp, table_id,
(uint16_t)res->resource_hndl);
if (!cache_entry || !cache_entry->ref_count) {
BNXT_TF_DBG(ERR, "Cache entry (%d:%d) not valid on free.\n",
table_id, (uint16_t)res->resource_hndl);
return -EINVAL;
}
/*
* See if we need to delete the entry. The tcam and identifiers are all
* tracked by the cached entries reference count. All are deleted when
* the reference count hit zero.
*/
cache_entry->ref_count--;
if (cache_entry->ref_count)
return 0;
/*
* Need to delete the tcam entry and the allocated identifiers.
* In the event of a failure, need to try to delete the remaining
* resources before returning error.
*/
tcam_parms.dir = res->direction;
tcam_parms.tcam_tbl_type = table_type;
tcam_parms.idx = cache_entry->tcam_idx;
rc = tf_free_tcam_entry(tfp, &tcam_parms);
if (rc)
BNXT_TF_DBG(ERR, "Failed to free tcam [%d][%s][0x%04x] rc=%d\n",
table_type,
(res->direction == TF_DIR_RX) ? "RX" : "TX",
tcam_parms.idx, rc);
/*
* Free the identifiers associated with the tcam entry. Entries with
* negative one are considered uninitialized.
*/
for (i = 0; i < BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM; i++) {
if (cache_entry->idents[i] == ULP_IDENTS_INVALID)
continue;
ident_parms.dir = res->direction;
ident_parms.ident_type = cache_entry->ident_types[i];
ident_parms.id = cache_entry->idents[i];
trc = tf_free_identifier(tfp, &ident_parms);
if (trc) {
BNXT_TF_DBG(ERR, "Failed to free identifier "
"[%d][%s][0x%04x] rc=%d\n",
ident_parms.ident_type,
(res->direction == TF_DIR_RX) ? "RX" : "TX",
ident_parms.id, trc);
rc = trc;
}
}
return rc;
}
static inline int32_t
ulp_mapper_tcam_entry_free(struct bnxt_ulp_context *ulp __rte_unused,
struct tf *tfp,
struct ulp_flow_db_res_params *res)
{
struct tf_free_tcam_entry_parms fparms = {
.dir = res->direction,
.tcam_tbl_type = res->resource_type,
.idx = (uint16_t)res->resource_hndl
};
return tf_free_tcam_entry(tfp, &fparms);
}
static inline int32_t
ulp_mapper_index_entry_free(struct bnxt_ulp_context *ulp,
struct tf *tfp,
struct ulp_flow_db_res_params *res)
{
struct tf_free_tbl_entry_parms fparms = {
.dir = res->direction,
.type = res->resource_type,
.idx = (uint32_t)res->resource_hndl
};
/*
* Just get the table scope, it will be ignored if not necessary
* by the tf_free_tbl_entry
*/
(void)bnxt_ulp_cntxt_tbl_scope_id_get(ulp, &fparms.tbl_scope_id);
return tf_free_tbl_entry(tfp, &fparms);
}
static inline int32_t
ulp_mapper_em_entry_free(struct bnxt_ulp_context *ulp,
struct tf *tfp,
struct ulp_flow_db_res_params *res)
{
struct tf_delete_em_entry_parms fparms = { 0 };
int32_t rc;
fparms.dir = res->direction;
if (res->resource_func == BNXT_ULP_RESOURCE_FUNC_EXT_EM_TABLE)
fparms.mem = TF_MEM_EXTERNAL;
else
fparms.mem = TF_MEM_INTERNAL;
fparms.flow_handle = res->resource_hndl;
rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp, &fparms.tbl_scope_id);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to get table scope\n");
return -EINVAL;
}
return tf_delete_em_entry(tfp, &fparms);
}
static inline int32_t
ulp_mapper_ident_free(struct bnxt_ulp_context *ulp __rte_unused,
struct tf *tfp,
struct ulp_flow_db_res_params *res)
{
struct tf_free_identifier_parms fparms = {
.dir = res->direction,
.ident_type = res->resource_type,
.id = (uint16_t)res->resource_hndl
};
return tf_free_identifier(tfp, &fparms);
}
static inline int32_t
ulp_mapper_mark_free(struct bnxt_ulp_context *ulp,
struct ulp_flow_db_res_params *res)
{
return ulp_mark_db_mark_del(ulp,
res->resource_type,
res->resource_hndl);
}
/*
* Process the identifier instruction and either store it in the flow database
* or return it in the val (if not NULL) on success. If val is NULL, the
* identifier is to be stored in the flow database.
*/
static int32_t
ulp_mapper_ident_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
struct bnxt_ulp_mapper_ident_info *ident,
uint16_t *val)
{
struct ulp_flow_db_res_params fid_parms;
uint64_t id = 0;
int32_t idx;
struct tf_alloc_identifier_parms iparms = { 0 };
struct tf_free_identifier_parms free_parms = { 0 };
struct tf *tfp;
int rc;
tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
if (!tfp) {
BNXT_TF_DBG(ERR, "Failed to get tf pointer\n");
return -EINVAL;
}
idx = ident->regfile_idx;
iparms.ident_type = ident->ident_type;
iparms.dir = tbl->direction;
rc = tf_alloc_identifier(tfp, &iparms);
if (rc) {
BNXT_TF_DBG(ERR, "Alloc ident %s:%d failed.\n",
(iparms.dir == TF_DIR_RX) ? "RX" : "TX",
iparms.ident_type);
return rc;
}
id = (uint64_t)tfp_cpu_to_be_64(iparms.id);
if (!ulp_regfile_write(parms->regfile, idx, id)) {
BNXT_TF_DBG(ERR, "Regfile[%d] write failed.\n", idx);
rc = -EINVAL;
/* Need to free the identifier, so goto error */
goto error;
}
/* Link the resource to the flow in the flow db */
if (!val) {
memset(&fid_parms, 0, sizeof(fid_parms));
fid_parms.direction = tbl->direction;
fid_parms.resource_func = ident->resource_func;
fid_parms.resource_type = ident->ident_type;
fid_parms.resource_hndl = iparms.id;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to link res to flow rc = %d\n",
rc);
/* Need to free the identifier, so goto error */
goto error;
}
} else {
*val = iparms.id;
}
return 0;
error:
/* Need to free the identifier */
free_parms.dir = tbl->direction;
free_parms.ident_type = ident->ident_type;
free_parms.id = iparms.id;
(void)tf_free_identifier(tfp, &free_parms);
BNXT_TF_DBG(ERR, "Ident process failed for %s:%s\n",
ident->description,
(tbl->direction == TF_DIR_RX) ? "RX" : "TX");
return rc;
}
/*
* Process the identifier instruction and extract it from result blob.
* Increment the identifier reference count and store it in the flow database.
*/
static int32_t
ulp_mapper_ident_extract(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
struct bnxt_ulp_mapper_ident_info *ident,
struct ulp_blob *res_blob)
{
struct ulp_flow_db_res_params fid_parms;
uint64_t id = 0;
uint32_t idx = 0;
struct tf_search_identifier_parms sparms = { 0 };
struct tf_free_identifier_parms free_parms = { 0 };
struct tf *tfp;
int rc;
/* Get the tfp from ulp context */
tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
if (!tfp) {
BNXT_TF_DBG(ERR, "Failed to get tf pointer\n");
return -EINVAL;
}
/* Extract the index from the result blob */
rc = ulp_blob_pull(res_blob, (uint8_t *)&idx, sizeof(idx),
ident->ident_bit_pos, ident->ident_bit_size);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to extract identifier from blob\n");
return -EIO;
}
/* populate the search params and search identifier shadow table */
sparms.ident_type = ident->ident_type;
sparms.dir = tbl->direction;
/* convert the idx into cpu format */
sparms.search_id = tfp_be_to_cpu_32(idx);
/* Search identifier also increase the reference count */
rc = tf_search_identifier(tfp, &sparms);
if (rc) {
BNXT_TF_DBG(ERR, "Search ident %s:%x failed.\n",
tf_dir_2_str(sparms.dir),
sparms.search_id);
return rc;
}
BNXT_TF_DBG(INFO, "Search ident %s:%x.success.\n",
tf_dir_2_str(sparms.dir),
sparms.search_id);
/* Write it to the regfile */
id = (uint64_t)tfp_cpu_to_be_64(sparms.search_id);
if (!ulp_regfile_write(parms->regfile, ident->regfile_idx, id)) {
BNXT_TF_DBG(ERR, "Regfile[%d] write failed.\n", idx);
rc = -EINVAL;
/* Need to free the identifier, so goto error */
goto error;
}
/* Link the resource to the flow in the flow db */
memset(&fid_parms, 0, sizeof(fid_parms));
fid_parms.direction = tbl->direction;
fid_parms.resource_func = ident->resource_func;
fid_parms.resource_type = ident->ident_type;
fid_parms.resource_hndl = sparms.search_id;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to link res to flow rc = %d\n",
rc);
/* Need to free the identifier, so goto error */
goto error;
}
return 0;
error:
/* Need to free the identifier */
free_parms.dir = tbl->direction;
free_parms.ident_type = ident->ident_type;
free_parms.id = sparms.search_id;
(void)tf_free_identifier(tfp, &free_parms);
BNXT_TF_DBG(ERR, "Ident extract failed for %s:%s:%x\n",
ident->description,
tf_dir_2_str(tbl->direction), sparms.search_id);
return rc;
}
static int32_t
ulp_mapper_result_field_process(struct bnxt_ulp_mapper_parms *parms,
enum tf_dir dir,
struct bnxt_ulp_mapper_result_field_info *fld,
struct ulp_blob *blob,
const char *name)
{
uint16_t idx, size_idx;
uint8_t *val = NULL;
uint64_t regval;
uint32_t val_size = 0, field_size = 0;
uint64_t act_bit;
uint8_t act_val;
switch (fld->result_opcode) {
case BNXT_ULP_MAPPER_OPC_SET_TO_CONSTANT:
val = fld->result_operand;
if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s failed to add field\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_ACT_PROP:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx, sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
BNXT_TF_DBG(ERR, "%s act_prop[%d] oob\n", name, idx);
return -EINVAL;
}
val = &parms->act_prop->act_details[idx];
field_size = ulp_mapper_act_prop_size_get(idx);
if (fld->field_bit_size < ULP_BYTE_2_BITS(field_size)) {
field_size = field_size -
((fld->field_bit_size + 7) / 8);
val += field_size;
}
if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s push field failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_ACT_BIT:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&act_bit, sizeof(uint64_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
act_bit = tfp_be_to_cpu_64(act_bit);
if (ULP_BITMAP_ISSET(parms->act_bitmap->bits, act_bit))
act_val = 1;
else
act_val = 0;
if (fld->field_bit_size > ULP_BYTE_2_BITS(sizeof(act_val))) {
BNXT_TF_DBG(ERR, "%s field size is incorrect\n", name);
return -EINVAL;
}
if (!ulp_blob_push(blob, &act_val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s push field failed\n", name);
return -EINVAL;
}
val = &act_val;
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_ENCAP_ACT_PROP_SZ:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx, sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
BNXT_TF_DBG(ERR, "%s act_prop[%d] oob\n", name, idx);
return -EINVAL;
}
val = &parms->act_prop->act_details[idx];
/* get the size index next */
if (!ulp_operand_read(&fld->result_operand[sizeof(uint16_t)],
(uint8_t *)&size_idx, sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
size_idx = tfp_be_to_cpu_16(size_idx);
if (size_idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
BNXT_TF_DBG(ERR, "act_prop[%d] oob\n", size_idx);
return -EINVAL;
}
memcpy(&val_size, &parms->act_prop->act_details[size_idx],
sizeof(uint32_t));
val_size = tfp_be_to_cpu_32(val_size);
val_size = ULP_BYTE_2_BITS(val_size);
ulp_blob_push_encap(blob, val, val_size);
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_REGFILE:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx, sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
/* Uninitialized regfile entries return 0 */
if (!ulp_regfile_read(parms->regfile, idx, &regval)) {
BNXT_TF_DBG(ERR, "%s regfile[%d] read oob\n",
name, idx);
return -EINVAL;
}
val = ulp_blob_push_64(blob, &regval, fld->field_bit_size);
if (!val) {
BNXT_TF_DBG(ERR, "%s push field failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_GLB_REGFILE:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (ulp_mapper_glb_resource_read(parms->mapper_data,
dir,
idx, &regval)) {
BNXT_TF_DBG(ERR, "%s regfile[%d] read failed.\n",
name, idx);
return -EINVAL;
}
val = ulp_blob_push_64(blob, &regval, fld->field_bit_size);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_COMP_FIELD:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx < BNXT_ULP_CF_IDX_LAST)
val = ulp_blob_push_32(blob, &parms->comp_fld[idx],
fld->field_bit_size);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_ZERO:
if (ulp_blob_pad_push(blob, fld->field_bit_size) < 0) {
BNXT_TF_DBG(ERR, "%s too large for blob\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_IF_ACT_BIT_THEN_ACT_PROP_ELSE_CONST:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&act_bit, sizeof(uint64_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
act_bit = tfp_be_to_cpu_64(act_bit);
if (ULP_BITMAP_ISSET(parms->act_bitmap->bits, act_bit)) {
/* Action bit is set so consider operand_true */
if (!ulp_operand_read(fld->result_operand_true,
(uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n",
name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
BNXT_TF_DBG(ERR, "%s act_prop[%d] oob\n",
name, idx);
return -EINVAL;
}
val = &parms->act_prop->act_details[idx];
field_size = ulp_mapper_act_prop_size_get(idx);
if (fld->field_bit_size < ULP_BYTE_2_BITS(field_size)) {
field_size = field_size -
((fld->field_bit_size + 7) / 8);
val += field_size;
}
if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s push field failed\n",
name);
return -EINVAL;
}
} else {
/* action bit is not set, use the operand false */
val = fld->result_operand_false;
if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s failed to add field\n",
name);
return -EINVAL;
}
}
break;
case BNXT_ULP_MAPPER_OPC_IF_ACT_BIT_THEN_CONST_ELSE_CONST:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&act_bit, sizeof(uint64_t))) {
BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
return -EINVAL;
}
act_bit = tfp_be_to_cpu_64(act_bit);
if (ULP_BITMAP_ISSET(parms->act_bitmap->bits, act_bit)) {
/* Action bit is set so consider operand_true */
val = fld->result_operand_true;
} else {
/* action bit is not set, use the operand false */
val = fld->result_operand_false;
}
if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
BNXT_TF_DBG(ERR, "%s failed to add field\n",
name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_IF_COMP_FIELD_THEN_CF_ELSE_CF:
if (!ulp_operand_read(fld->result_operand,
(uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx >= BNXT_ULP_CF_IDX_LAST) {
BNXT_TF_DBG(ERR, "%s invalid index %u\n", name, idx);
return -EINVAL;
}
/* check if the computed field is set */
if (ULP_COMP_FLD_IDX_RD(parms, idx))
val = fld->result_operand_true;
else
val = fld->result_operand_false;
/* read the appropriate computed field */
if (!ulp_operand_read(val, (uint8_t *)&idx, sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s val operand read failed\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx >= BNXT_ULP_CF_IDX_LAST) {
BNXT_TF_DBG(ERR, "%s invalid index %u\n", name, idx);
return -EINVAL;
}
val = ulp_blob_push_32(blob, &parms->comp_fld[idx],
fld->field_bit_size);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
default:
BNXT_TF_DBG(ERR, "invalid result mapper opcode 0x%x\n",
fld->result_opcode);
return -EINVAL;
}
return 0;
}
/* Function to alloc action record and set the table. */
static int32_t
ulp_mapper_keymask_field_process(struct bnxt_ulp_mapper_parms *parms,
enum tf_dir dir,
struct bnxt_ulp_mapper_class_key_field_info *f,
struct ulp_blob *blob,
uint8_t is_key,
const char *name)
{
uint64_t val64;
uint16_t idx, bitlen;
uint32_t opcode;
uint8_t *operand;
struct ulp_regfile *regfile = parms->regfile;
uint8_t *val = NULL;
struct bnxt_ulp_mapper_class_key_field_info *fld = f;
uint32_t field_size;
if (is_key) {
operand = fld->spec_operand;
opcode = fld->spec_opcode;
} else {
operand = fld->mask_operand;
opcode = fld->mask_opcode;
}
bitlen = fld->field_bit_size;
switch (opcode) {
case BNXT_ULP_MAPPER_OPC_SET_TO_CONSTANT:
val = operand;
if (!ulp_blob_push(blob, val, bitlen)) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_ZERO:
if (ulp_blob_pad_push(blob, bitlen) < 0) {
BNXT_TF_DBG(ERR, "%s pad too large for blob\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_HDR_FIELD:
if (!ulp_operand_read(operand, (uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (is_key)
val = parms->hdr_field[idx].spec;
else
val = parms->hdr_field[idx].mask;
/*
* Need to account for how much data was pushed to the header
* field vs how much is to be inserted in the key/mask.
*/
field_size = parms->hdr_field[idx].size;
if (bitlen < ULP_BYTE_2_BITS(field_size)) {
field_size = field_size - ((bitlen + 7) / 8);
val += field_size;
}
if (!ulp_blob_push(blob, val, bitlen)) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_COMP_FIELD:
if (!ulp_operand_read(operand, (uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (idx < BNXT_ULP_CF_IDX_LAST)
val = ulp_blob_push_32(blob, &parms->comp_fld[idx],
bitlen);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_REGFILE:
if (!ulp_operand_read(operand, (uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (!ulp_regfile_read(regfile, idx, &val64)) {
BNXT_TF_DBG(ERR, "%s regfile[%d] read failed.\n",
name, idx);
return -EINVAL;
}
val = ulp_blob_push_64(blob, &val64, bitlen);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
case BNXT_ULP_MAPPER_OPC_SET_TO_GLB_REGFILE:
if (!ulp_operand_read(operand, (uint8_t *)&idx,
sizeof(uint16_t))) {
BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
return -EINVAL;
}
idx = tfp_be_to_cpu_16(idx);
if (ulp_mapper_glb_resource_read(parms->mapper_data,
dir,
idx, &val64)) {
BNXT_TF_DBG(ERR, "%s regfile[%d] read failed.\n",
name, idx);
return -EINVAL;
}
val = ulp_blob_push_64(blob, &val64, bitlen);
if (!val) {
BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
return -EINVAL;
}
break;
default:
BNXT_TF_DBG(ERR, "invalid keymask mapper opcode 0x%x\n",
opcode);
return -EINVAL;
break;
}
return 0;
}
static int32_t
ulp_mapper_mark_gfid_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
uint64_t flow_id)
{
enum bnxt_ulp_mark_db_opcode mark_op = tbl->mark_db_opcode;
struct ulp_flow_db_res_params fid_parms;
uint32_t mark, gfid, mark_flag;
int32_t rc = 0;
if (mark_op == BNXT_ULP_MARK_DB_OPCODE_NOP ||
!(mark_op == BNXT_ULP_MARK_DB_OPCODE_SET_IF_MARK_ACTION &&
ULP_BITMAP_ISSET(parms->act_bitmap->bits,
BNXT_ULP_ACTION_BIT_MARK)))
return rc; /* no need to perform gfid process */
/* Get the mark id details from action property */
memcpy(&mark, &parms->act_prop->act_details[BNXT_ULP_ACT_PROP_IDX_MARK],
sizeof(mark));
mark = tfp_be_to_cpu_32(mark);
TF_GET_GFID_FROM_FLOW_ID(flow_id, gfid);
mark_flag = BNXT_ULP_MARK_GLOBAL_HW_FID;
rc = ulp_mark_db_mark_add(parms->ulp_ctx, mark_flag,
gfid, mark);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to add mark to flow\n");
return rc;
}
fid_parms.direction = tbl->direction;
fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_HW_FID;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
fid_parms.resource_type = mark_flag;
fid_parms.resource_hndl = gfid;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc)
BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n", rc);
return rc;
}
static int32_t
ulp_mapper_mark_act_ptr_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
enum bnxt_ulp_mark_db_opcode mark_op = tbl->mark_db_opcode;
struct ulp_flow_db_res_params fid_parms;
uint32_t act_idx, mark, mark_flag;
uint64_t val64;
int32_t rc = 0;
if (mark_op == BNXT_ULP_MARK_DB_OPCODE_NOP ||
!(mark_op == BNXT_ULP_MARK_DB_OPCODE_SET_IF_MARK_ACTION &&
ULP_BITMAP_ISSET(parms->act_bitmap->bits,
BNXT_ULP_ACTION_BIT_MARK)))
return rc; /* no need to perform mark action process */
/* Get the mark id details from action property */
memcpy(&mark, &parms->act_prop->act_details[BNXT_ULP_ACT_PROP_IDX_MARK],
sizeof(mark));
mark = tfp_be_to_cpu_32(mark);
if (!ulp_regfile_read(parms->regfile,
BNXT_ULP_REGFILE_INDEX_MAIN_ACTION_PTR,
&val64)) {
BNXT_TF_DBG(ERR, "read action ptr main failed\n");
return -EINVAL;
}
act_idx = tfp_be_to_cpu_64(val64);
mark_flag = BNXT_ULP_MARK_LOCAL_HW_FID;
rc = ulp_mark_db_mark_add(parms->ulp_ctx, mark_flag,
act_idx, mark);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to add mark to flow\n");
return rc;
}
fid_parms.direction = tbl->direction;
fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_HW_FID;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
fid_parms.resource_type = mark_flag;
fid_parms.resource_hndl = act_idx;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc)
BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n", rc);
return rc;
}
static int32_t
ulp_mapper_mark_vfr_idx_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct ulp_flow_db_res_params fid_parms;
uint32_t act_idx, mark, mark_flag;
uint64_t val64;
enum bnxt_ulp_mark_db_opcode mark_op = tbl->mark_db_opcode;
int32_t rc = 0;
if (mark_op == BNXT_ULP_MARK_DB_OPCODE_NOP ||
mark_op == BNXT_ULP_MARK_DB_OPCODE_SET_IF_MARK_ACTION)
return rc; /* no need to perform mark action process */
/* Get the mark id details from the computed field of dev port id */
mark = ULP_COMP_FLD_IDX_RD(parms, BNXT_ULP_CF_IDX_DEV_PORT_ID);
/* Get the main action pointer */
if (!ulp_regfile_read(parms->regfile,
BNXT_ULP_REGFILE_INDEX_MAIN_ACTION_PTR,
&val64)) {
BNXT_TF_DBG(ERR, "read action ptr main failed\n");
return -EINVAL;
}
act_idx = tfp_be_to_cpu_64(val64);
/* Set the mark flag to local fid and vfr flag */
mark_flag = BNXT_ULP_MARK_LOCAL_HW_FID | BNXT_ULP_MARK_VFR_ID;
rc = ulp_mark_db_mark_add(parms->ulp_ctx, mark_flag,
act_idx, mark);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to add mark to flow\n");
return rc;
}
fid_parms.direction = tbl->direction;
fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_HW_FID;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
fid_parms.resource_type = mark_flag;
fid_parms.resource_hndl = act_idx;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc)
BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n", rc);
return rc;
}
/*
* Tcam table - create the result blob.
* data [out] - the result blob data
*/
static int32_t
ulp_mapper_tcam_tbl_result_create(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
struct ulp_blob *data)
{
struct bnxt_ulp_mapper_result_field_info *dflds;
uint32_t num_dflds;
uint32_t encap_flds = 0;
uint32_t i;
int32_t rc = 0;
/* Create the result data blob */
dflds = ulp_mapper_result_fields_get(tbl, &num_dflds,
&encap_flds);
if (!dflds || !num_dflds || encap_flds) {
BNXT_TF_DBG(ERR, "Failed to get data fields.\n");
return -EINVAL;
}
for (i = 0; i < num_dflds; i++) {
rc = ulp_mapper_result_field_process(parms,
tbl->direction,
&dflds[i],
data,
"TCAM Result");
if (rc) {
BNXT_TF_DBG(ERR, "Failed to set data fields\n");
return -EINVAL;
}
}
return rc;
}
/* Tcam table scan the identifier list and allocate each identifier */
static int32_t
ulp_mapper_tcam_tbl_scan_ident_alloc(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct bnxt_ulp_mapper_ident_info *idents;
uint32_t num_idents;
uint32_t i;
/*
* Since the cache entry is responsible for allocating
* identifiers when in use, allocate the identifiers only
* during normal processing.
*/
if (parms->tcam_tbl_opc ==
BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL) {
idents = ulp_mapper_ident_fields_get(tbl, &num_idents);
for (i = 0; i < num_idents; i++) {
if (ulp_mapper_ident_process(parms, tbl,
&idents[i], NULL))
return -EINVAL;
}
}
return 0;
}
/*
* Tcam table scan the identifier list and extract the identifier from
* the result blob.
*/
static int32_t
ulp_mapper_tcam_tbl_scan_ident_extract(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
struct ulp_blob *data)
{
struct bnxt_ulp_mapper_ident_info *idents;
uint32_t num_idents = 0, i;
int32_t rc = 0;
/*
* Extract the listed identifiers from the result field,
* no need to allocate them.
*/
idents = ulp_mapper_ident_fields_get(tbl, &num_idents);
for (i = 0; i < num_idents; i++) {
rc = ulp_mapper_ident_extract(parms, tbl, &idents[i], data);
if (rc) {
BNXT_TF_DBG(ERR, "Error in identifier extraction\n");
return rc;
}
}
return rc;
}
/* Internal function to write the tcam entry */
static int32_t
ulp_mapper_tcam_tbl_entry_write(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
struct ulp_blob *key,
struct ulp_blob *mask,
struct ulp_blob *data,
uint16_t idx)
{
struct tf_set_tcam_entry_parms sparms = { 0 };
struct tf *tfp;
uint16_t tmplen;
int32_t rc;
tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
if (!tfp) {
BNXT_TF_DBG(ERR, "Failed to get truflow pointer\n");
return -EINVAL;
}
sparms.dir = tbl->direction;
sparms.tcam_tbl_type = tbl->resource_type;
sparms.idx = idx;
/* Already verified the key/mask lengths */
sparms.key = ulp_blob_data_get(key, &tmplen);
sparms.mask = ulp_blob_data_get(mask, &tmplen);
sparms.key_sz_in_bits = tbl->key_bit_size;
sparms.result = ulp_blob_data_get(data, &tmplen);
if (tbl->result_bit_size != tmplen) {
BNXT_TF_DBG(ERR, "Result len (%d) != Expected (%d)\n",
tmplen, tbl->result_bit_size);
return -EINVAL;
}
sparms.result_sz_in_bits = tbl->result_bit_size;
if (tf_set_tcam_entry(tfp, &sparms)) {
BNXT_TF_DBG(ERR, "tcam[%s][%s][%x] write failed.\n",
tf_tcam_tbl_2_str(sparms.tcam_tbl_type),
tf_dir_2_str(sparms.dir), sparms.idx);
return -EIO;
}
BNXT_TF_DBG(INFO, "tcam[%s][%s][%x] write success.\n",
tf_tcam_tbl_2_str(sparms.tcam_tbl_type),
tf_dir_2_str(sparms.dir), sparms.idx);
/* Update cache with TCAM index if the was cache allocated. */
if (parms->tcam_tbl_opc ==
BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_ALLOC) {
if (!parms->cache_ptr) {
BNXT_TF_DBG(ERR, "Unable to update cache");
return -EINVAL;
}
parms->cache_ptr->tcam_idx = idx;
}
/* Mark action */
rc = ulp_mapper_mark_act_ptr_process(parms, tbl);
if (rc) {
BNXT_TF_DBG(ERR, "failed mark action processing\n");
return rc;
}
return rc;
}
static int32_t
ulp_mapper_tcam_tbl_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct bnxt_ulp_mapper_class_key_field_info *kflds;
struct ulp_blob key, mask, data, update_data;
uint32_t i, num_kflds;
struct tf *tfp;
int32_t rc, trc;
struct tf_alloc_tcam_entry_parms aparms = { 0 };
struct tf_search_tcam_entry_parms searchparms = { 0 };
struct ulp_flow_db_res_params fid_parms = { 0 };
struct tf_free_tcam_entry_parms free_parms = { 0 };
enum bnxt_ulp_search_before_alloc search_flag;
uint32_t hit = 0;
uint16_t tmplen = 0;
uint16_t idx;
/* Skip this if was handled by the cache. */
if (parms->tcam_tbl_opc == BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_SKIP) {
parms->tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL;
return 0;
}
tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
if (!tfp) {
BNXT_TF_DBG(ERR, "Failed to get truflow pointer\n");
return -EINVAL;
}
kflds = ulp_mapper_key_fields_get(tbl, &num_kflds);
if (!kflds || !num_kflds) {
BNXT_TF_DBG(ERR, "Failed to get key fields\n");
return -EINVAL;
}
if (!ulp_blob_init(&key, tbl->key_bit_size,
parms->device_params->byte_order) ||
!ulp_blob_init(&mask, tbl->key_bit_size,
parms->device_params->byte_order) ||
!ulp_blob_init(&data, tbl->result_bit_size,
parms->device_params->byte_order) ||
!ulp_blob_init(&update_data, tbl->result_bit_size,
parms->device_params->byte_order)) {
BNXT_TF_DBG(ERR, "blob inits failed.\n");
return -EINVAL;
}
/* create the key/mask */
/*
* NOTE: The WC table will require some kind of flag to handle the
* mode bits within the key/mask
*/
for (i = 0; i < num_kflds; i++) {
/* Setup the key */
rc = ulp_mapper_keymask_field_process(parms, tbl->direction,
&kflds[i],
&key, 1, "TCAM Key");
if (rc) {
BNXT_TF_DBG(ERR, "Key field set failed.\n");
return rc;
}
/* Setup the mask */
rc = ulp_mapper_keymask_field_process(parms, tbl->direction,
&kflds[i],
&mask, 0, "TCAM Mask");
if (rc) {
BNXT_TF_DBG(ERR, "Mask field set failed.\n");
return rc;
}
}
if (tbl->srch_b4_alloc == BNXT_ULP_SEARCH_BEFORE_ALLOC_NO) {
/*
* No search for re-use is requested, so simply allocate the
* tcam index.
*/
aparms.dir = tbl->direction;
aparms.tcam_tbl_type = tbl->resource_type;
aparms.search_enable = tbl->srch_b4_alloc;
aparms.key_sz_in_bits = tbl->key_bit_size;
aparms.key = ulp_blob_data_get(&key, &tmplen);
if (tbl->key_bit_size != tmplen) {
BNXT_TF_DBG(ERR, "Key len (%d) != Expected (%d)\n",
tmplen, tbl->key_bit_size);
return -EINVAL;
}
aparms.mask = ulp_blob_data_get(&mask, &tmplen);
if (tbl->key_bit_size != tmplen) {
BNXT_TF_DBG(ERR, "Mask len (%d) != Expected (%d)\n",
tmplen, tbl->key_bit_size);
return -EINVAL;
}
aparms.priority = tbl->priority;
/*
* All failures after this succeeds require the entry to be
* freed. cannot return directly on failure, but needs to goto
* error.
*/
rc = tf_alloc_tcam_entry(tfp, &aparms);
if (rc) {
BNXT_TF_DBG(ERR, "tcam alloc failed rc=%d.\n", rc);
return rc;
}
idx = aparms.idx;
hit = aparms.hit;
} else {
/*
* Searching before allocation to see if we already have an
* entry. This allows re-use of a constrained resource.
*/
searchparms.dir = tbl->direction;
searchparms.tcam_tbl_type = tbl->resource_type;
searchparms.key = ulp_blob_data_get(&key, &tmplen);
searchparms.key_sz_in_bits = tbl->key_bit_size;
searchparms.mask = ulp_blob_data_get(&mask, &tmplen);
searchparms.priority = tbl->priority;
searchparms.alloc = 1;
searchparms.result = ulp_blob_data_get(&data, &tmplen);
searchparms.result_sz_in_bits = tbl->result_bit_size;
rc = tf_search_tcam_entry(tfp, &searchparms);
if (rc) {
BNXT_TF_DBG(ERR, "tcam search failed rc=%d\n", rc);
return rc;
}
/* Successful search, check the result */
if (searchparms.search_status == REJECT) {
BNXT_TF_DBG(ERR, "tcam alloc rejected\n");
return -ENOMEM;
}
idx = searchparms.idx;
hit = searchparms.hit;
}
/* if it is miss then it is same as no search before alloc */
if (!hit)
search_flag = BNXT_ULP_SEARCH_BEFORE_ALLOC_NO;
else
search_flag = tbl->srch_b4_alloc;
switch (search_flag) {
case BNXT_ULP_SEARCH_BEFORE_ALLOC_NO:
/*Scan identifier list, allocate identifier and update regfile*/
rc = ulp_mapper_tcam_tbl_scan_ident_alloc(parms, tbl);
/* Create the result blob */
if (!rc)
rc = ulp_mapper_tcam_tbl_result_create(parms, tbl,
&data);
/* write the tcam entry */
if (!rc)
rc = ulp_mapper_tcam_tbl_entry_write(parms, tbl, &key,
&mask, &data, idx);
break;
case BNXT_ULP_SEARCH_BEFORE_ALLOC_SEARCH_IF_HIT_SKIP:
/*Scan identifier list, extract identifier and update regfile*/
rc = ulp_mapper_tcam_tbl_scan_ident_extract(parms, tbl, &data);
break;
case BNXT_ULP_SEARCH_BEFORE_ALLOC_SEARCH_IF_HIT_UPDATE:
/*Scan identifier list, extract identifier and update regfile*/
rc = ulp_mapper_tcam_tbl_scan_ident_extract(parms, tbl, &data);
/* Create the result blob */
if (!rc)
rc = ulp_mapper_tcam_tbl_result_create(parms, tbl,
&update_data);
/* Update/overwrite the tcam entry */
if (!rc)
rc = ulp_mapper_tcam_tbl_entry_write(parms, tbl, &key,
&mask,
&update_data, idx);
break;
default:
BNXT_TF_DBG(ERR, "invalid search opcode\n");
rc = -EINVAL;
break;
}
if (rc)
goto error;
/*
* Only link the entry to the flow db in the event that cache was not
* used.
*/
if (parms->tcam_tbl_opc == BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL) {
fid_parms.direction = tbl->direction;
fid_parms.resource_func = tbl->resource_func;
fid_parms.resource_type = tbl->resource_type;
fid_parms.critical_resource = tbl->critical_resource;
fid_parms.resource_hndl = idx;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc) {
BNXT_TF_DBG(ERR,
"Failed to link resource to flow rc = %d\n",
rc);
/* Need to free the identifier, so goto error */
goto error;
}
} else {
/*
* Reset the tcam table opcode to normal in case the next tcam
* entry does not use cache.
*/
parms->tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL;
parms->cache_ptr = NULL;
}
return 0;
error:
parms->tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL;
free_parms.dir = tbl->direction;
free_parms.tcam_tbl_type = tbl->resource_type;
free_parms.idx = idx;
trc = tf_free_tcam_entry(tfp, &free_parms);
if (trc)
BNXT_TF_DBG(ERR, "Failed to free tcam[%d][%d][%d] on failure\n",
tbl->resource_type, tbl->direction, idx);
return rc;
}
static int32_t
ulp_mapper_em_tbl_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct bnxt_ulp_mapper_class_key_field_info *kflds;
struct bnxt_ulp_mapper_result_field_info *dflds;
struct ulp_blob key, data;
uint32_t i, num_kflds, num_dflds;
uint16_t tmplen;
struct tf *tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
struct ulp_flow_db_res_params fid_parms = { 0 };
struct tf_insert_em_entry_parms iparms = { 0 };
struct tf_delete_em_entry_parms free_parms = { 0 };
int32_t trc;
enum bnxt_ulp_flow_mem_type mtype = parms->device_params->flow_mem_type;
int32_t rc = 0;
uint32_t encap_flds = 0;
kflds = ulp_mapper_key_fields_get(tbl, &num_kflds);
if (!kflds || !num_kflds) {
BNXT_TF_DBG(ERR, "Failed to get key fields\n");
return -EINVAL;
}
/* Initialize the key/result blobs */
if (!ulp_blob_init(&key, tbl->blob_key_bit_size,
parms->device_params->byte_order) ||
!ulp_blob_init(&data, tbl->result_bit_size,
parms->device_params->byte_order)) {
BNXT_TF_DBG(ERR, "blob inits failed.\n");
return -EINVAL;
}
/* create the key */
for (i = 0; i < num_kflds; i++) {
/* Setup the key */
rc = ulp_mapper_keymask_field_process(parms, tbl->direction,
&kflds[i],
&key, 1, "EM Key");
if (rc) {
BNXT_TF_DBG(ERR, "Key field set failed.\n");
return rc;
}
}
/*
* TBD: Normally should process identifiers in case of using recycle or
* loopback. Not supporting recycle for now.
*/
/* Create the result data blob */
dflds = ulp_mapper_result_fields_get(tbl, &num_dflds, &encap_flds);
if (!dflds || !num_dflds || encap_flds) {
BNXT_TF_DBG(ERR, "Failed to get data fields.\n");
return -EINVAL;
}
for (i = 0; i < num_dflds; i++) {
struct bnxt_ulp_mapper_result_field_info *fld;
fld = &dflds[i];
rc = ulp_mapper_result_field_process(parms,
tbl->direction,
fld,
&data,
"EM Result");
if (rc) {
BNXT_TF_DBG(ERR, "Failed to set data fields.\n");
return rc;
}
}
/* do the transpose for the internal EM keys */
if (tbl->resource_func == BNXT_ULP_RESOURCE_FUNC_INT_EM_TABLE)
ulp_blob_perform_byte_reverse(&key);
rc = bnxt_ulp_cntxt_tbl_scope_id_get(parms->ulp_ctx,
&iparms.tbl_scope_id);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to get table scope rc=%d\n", rc);
return rc;
}
/*
* NOTE: the actual blob size will differ from the size in the tbl
* entry due to the padding.
*/
iparms.dup_check = 0;
iparms.dir = tbl->direction;
iparms.mem = tbl->resource_type;
iparms.key = ulp_blob_data_get(&key, &tmplen);
iparms.key_sz_in_bits = tbl->key_bit_size;
iparms.em_record = ulp_blob_data_get(&data, &tmplen);
iparms.em_record_sz_in_bits = tbl->result_bit_size;
rc = tf_insert_em_entry(tfp, &iparms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to insert em entry rc=%d.\n", rc);
return rc;
}
/* Mark action process */
if (mtype == BNXT_ULP_FLOW_MEM_TYPE_EXT &&
tbl->resource_type == TF_MEM_EXTERNAL)
rc = ulp_mapper_mark_gfid_process(parms, tbl, iparms.flow_id);
else if (mtype == BNXT_ULP_FLOW_MEM_TYPE_INT &&
tbl->resource_type == TF_MEM_INTERNAL)
rc = ulp_mapper_mark_act_ptr_process(parms, tbl);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to add mark to flow\n");
goto error;
}
/* Link the EM resource to the flow in the flow db */
memset(&fid_parms, 0, sizeof(fid_parms));
fid_parms.direction = tbl->direction;
fid_parms.resource_func = tbl->resource_func;
fid_parms.resource_type = tbl->resource_type;
fid_parms.critical_resource = tbl->critical_resource;
fid_parms.resource_hndl = iparms.flow_handle;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc) {
BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n",
rc);
/* Need to free the identifier, so goto error */
goto error;
}
return 0;
error:
free_parms.dir = iparms.dir;
free_parms.mem = iparms.mem;
free_parms.tbl_scope_id = iparms.tbl_scope_id;
free_parms.flow_handle = iparms.flow_handle;
trc = tf_delete_em_entry(tfp, &free_parms);
if (trc)
BNXT_TF_DBG(ERR, "Failed to delete EM entry on failed add\n");
return rc;
}
static int32_t
ulp_mapper_index_tbl_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl,
bool is_class_tbl)
{
struct bnxt_ulp_mapper_result_field_info *flds;
struct ulp_flow_db_res_params fid_parms;
struct ulp_blob data;
uint64_t idx = 0;
uint16_t tmplen;
uint32_t i, num_flds, index, hit;
int32_t rc = 0, trc = 0;
struct tf_alloc_tbl_entry_parms aparms = { 0 };
struct tf_search_tbl_entry_parms srchparms = { 0 };
struct tf_set_tbl_entry_parms sparms = { 0 };
struct tf_free_tbl_entry_parms free_parms = { 0 };
uint32_t tbl_scope_id;
struct tf *tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
uint16_t bit_size;
uint32_t encap_flds = 0;
/* Get the scope id first */
rc = bnxt_ulp_cntxt_tbl_scope_id_get(parms->ulp_ctx, &tbl_scope_id);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to get table scope rc=%d\n", rc);
return rc;
}
/* use the max size if encap is enabled */
if (tbl->encap_num_fields)
bit_size = BNXT_ULP_FLMP_BLOB_SIZE_IN_BITS;
else
bit_size = tbl->result_bit_size;
/* Initialize the blob data */
if (!ulp_blob_init(&data, bit_size,
parms->device_params->byte_order)) {
BNXT_TF_DBG(ERR, "Failed initial index table blob\n");
return -EINVAL;
}
/* Get the result fields list */
if (is_class_tbl)
flds = ulp_mapper_result_fields_get(tbl, &num_flds,
&encap_flds);
else
flds = ulp_mapper_act_result_fields_get(tbl, &num_flds,
&encap_flds);
if (!flds || (!num_flds && !encap_flds)) {
BNXT_TF_DBG(ERR, "template undefined for the index table\n");
return -EINVAL;
}
/* process the result fields, loop through them */
for (i = 0; i < (num_flds + encap_flds); i++) {
/* set the swap index if encap swap bit is enabled */
if (parms->device_params->encap_byte_swap && encap_flds &&
(i == num_flds))
ulp_blob_encap_swap_idx_set(&data);
/* Process the result fields */
rc = ulp_mapper_result_field_process(parms,
tbl->direction,
&flds[i],
&data,
"Indexed Result");
if (rc) {
BNXT_TF_DBG(ERR, "data field failed\n");
return rc;
}
}
/* if encap bit swap is enabled perform the bit swap */
if (parms->device_params->encap_byte_swap && encap_flds) {
ulp_blob_perform_encap_swap(&data);
}
/*
* Check for index opcode, if it is Global then
* no need to allocate the table, just set the table
* and exit since it is not maintained in the flow db.
*/
if (tbl->index_opcode == BNXT_ULP_INDEX_OPCODE_GLOBAL) {
/* get the index from index operand */
if (tbl->index_operand < BNXT_ULP_GLB_REGFILE_INDEX_LAST &&
ulp_mapper_glb_resource_read(parms->mapper_data,
tbl->direction,
tbl->index_operand,
&idx)) {
BNXT_TF_DBG(ERR, "Glbl regfile[%d] read failed.\n",
tbl->index_operand);
return -EINVAL;
}
/* set the Tf index table */
sparms.dir = tbl->direction;
sparms.type = tbl->resource_type;
sparms.data = ulp_blob_data_get(&data, &tmplen);
sparms.data_sz_in_bytes = ULP_BITS_2_BYTE(tmplen);
sparms.idx = tfp_be_to_cpu_64(idx);
sparms.tbl_scope_id = tbl_scope_id;
rc = tf_set_tbl_entry(tfp, &sparms);
if (rc) {
BNXT_TF_DBG(ERR,
"Glbl Set table[%d][%s][%d] failed rc=%d\n",
sparms.type,
(sparms.dir == TF_DIR_RX) ? "RX" : "TX",
sparms.idx,
rc);
return rc;
}
return 0; /* success */
}
index = 0;
hit = 0;
/* Perform the tf table allocation by filling the alloc params */
if (tbl->srch_b4_alloc) {
memset(&srchparms, 0, sizeof(srchparms));
srchparms.dir = tbl->direction;
srchparms.type = tbl->resource_type;
srchparms.alloc = 1;
srchparms.result = ulp_blob_data_get(&data, &tmplen);
srchparms.result_sz_in_bytes = ULP_BITS_2_BYTE(tmplen);
srchparms.tbl_scope_id = tbl_scope_id;
rc = tf_search_tbl_entry(tfp, &srchparms);
if (rc) {
BNXT_TF_DBG(ERR, "Alloc table[%s][%s] failed rc=%d\n",
tf_tbl_type_2_str(tbl->resource_type),
tf_dir_2_str(tbl->direction), rc);
return rc;
}
if (srchparms.search_status == REJECT) {
BNXT_TF_DBG(ERR, "Alloc table[%s][%s] rejected.\n",
tf_tbl_type_2_str(tbl->resource_type),
tf_dir_2_str(tbl->direction));
return -ENOMEM;
}
index = srchparms.idx;
hit = srchparms.hit;
} else {
aparms.dir = tbl->direction;
aparms.type = tbl->resource_type;
aparms.search_enable = tbl->srch_b4_alloc;
aparms.result = ulp_blob_data_get(&data, &tmplen);
aparms.result_sz_in_bytes = ULP_BITS_2_BYTE(tmplen);
aparms.tbl_scope_id = tbl_scope_id;
/* All failures after the alloc succeeds require a free */
rc = tf_alloc_tbl_entry(tfp, &aparms);
if (rc) {
BNXT_TF_DBG(ERR, "Alloc table[%s][%s] failed rc=%d\n",
tf_tbl_type_2_str(tbl->resource_type),
tf_dir_2_str(tbl->direction), rc);
return rc;
}
index = aparms.idx;
}
/*
* calculate the idx for the result record, for external EM the offset
* needs to be shifted accordingly. If external non-inline table types
* are used then need to revisit this logic.
*/
if (tbl->resource_type == TF_TBL_TYPE_EXT)
idx = TF_ACT_REC_OFFSET_2_PTR(index);
else
idx = index;
/* Always storing values in Regfile in BE */
idx = tfp_cpu_to_be_64(idx);
if (tbl->index_opcode == BNXT_ULP_INDEX_OPCODE_ALLOCATE) {
rc = ulp_regfile_write(parms->regfile, tbl->index_operand, idx);
if (!rc) {
BNXT_TF_DBG(ERR, "Write regfile[%d] failed\n",
tbl->index_operand);
goto error;
}
}
/* Perform the tf table set by filling the set params */
if (!tbl->srch_b4_alloc || !hit) {
sparms.dir = tbl->direction;
sparms.type = tbl->resource_type;
sparms.data = ulp_blob_data_get(&data, &tmplen);
sparms.data_sz_in_bytes = ULP_BITS_2_BYTE(tmplen);
sparms.idx = index;
sparms.tbl_scope_id = tbl_scope_id;
rc = tf_set_tbl_entry(tfp, &sparms);
if (rc) {
BNXT_TF_DBG(ERR, "Set table[%d][%s][%d] failed rc=%d\n",
sparms.type,
(sparms.dir == TF_DIR_RX) ? "RX" : "TX",
sparms.idx,
rc);
goto error;
}
}
/* Link the resource to the flow in the flow db */
memset(&fid_parms, 0, sizeof(fid_parms));
fid_parms.direction = tbl->direction;
fid_parms.resource_func = tbl->resource_func;
fid_parms.resource_type = tbl->resource_type;
fid_parms.resource_sub_type = tbl->resource_sub_type;
fid_parms.resource_hndl = index;
fid_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to link resource to flow rc = %d\n",
rc);
goto error;
}
/* Perform the VF rep action */
rc = ulp_mapper_mark_vfr_idx_process(parms, tbl);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to add vfr mark rc = %d\n", rc);
goto error;
}
return rc;
error:
/*
* Free the allocated resource since we failed to either
* write to the entry or link the flow
*/
free_parms.dir = tbl->direction;
free_parms.type = tbl->resource_type;
free_parms.idx = index;
free_parms.tbl_scope_id = tbl_scope_id;
trc = tf_free_tbl_entry(tfp, &free_parms);
if (trc)
BNXT_TF_DBG(ERR, "Failed to free tbl entry on failure\n");
return rc;
}
static int32_t
ulp_mapper_cache_tbl_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct bnxt_ulp_mapper_class_key_field_info *kflds;
struct bnxt_ulp_mapper_cache_entry *cache_entry;
struct bnxt_ulp_mapper_ident_info *idents;
uint32_t i, num_kflds = 0, num_idents = 0;
struct ulp_flow_db_res_params fid_parms;
struct tf_free_identifier_parms fparms;
uint16_t tmplen, tmp_ident;
struct ulp_blob key;
uint8_t *cache_key;
uint64_t regval;
uint16_t *ckey;
int32_t rc;
/* Get the key fields list and build the key. */
kflds = ulp_mapper_key_fields_get(tbl, &num_kflds);
if (!kflds || !num_kflds) {
BNXT_TF_DBG(ERR, "Failed to get key fields\n");
return -EINVAL;
}
if (!ulp_blob_init(&key, tbl->key_bit_size,
parms->device_params->byte_order)) {
BNXT_TF_DBG(ERR, "Failed to alloc blob\n");
return -EINVAL;
}
for (i = 0; i < num_kflds; i++) {
/* Setup the key */
rc = ulp_mapper_keymask_field_process(parms, tbl->direction,
&kflds[i],
&key, 1, "Cache Key");
if (rc) {
BNXT_TF_DBG(ERR,
"Failed to create key for Cache rc=%d\n",
rc);
return -EINVAL;
}
}
/*
* Perform the lookup in the cache table with constructed key. The
* cache_key is a byte array of tmplen, it needs to be converted to a
* index for the cache table.
*/
cache_key = ulp_blob_data_get(&key, &tmplen);
ckey = (uint16_t *)cache_key;
/*
* The id computed based on resource sub type and direction where
* dir is the bit0 and rest of the bits come from resource
* sub type.
*/
cache_entry = ulp_mapper_cache_entry_get(parms->ulp_ctx,
(tbl->resource_sub_type << 1 |
(tbl->direction & 0x1)),
*ckey);
/*
* Get the identifier list for processing by both the hit and miss
* processing.
*/
idents = ulp_mapper_ident_fields_get(tbl, &num_idents);
if (!cache_entry->ref_count) {
/* Initialize the cache entry */
cache_entry->tcam_idx = 0;
cache_entry->ref_count = 0;
for (i = 0; i < BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM; i++)
cache_entry->idents[i] = ULP_IDENTS_INVALID;
/* Need to allocate identifiers for storing in the cache. */
for (i = 0; i < num_idents; i++) {
/*
* Since we are using the cache, the identifier does not
* get added to the flow db. Pass in the pointer to the
* tmp_ident.
*/
rc = ulp_mapper_ident_process(parms, tbl,
&idents[i], &tmp_ident);
if (rc)
goto error;
cache_entry->ident_types[i] = idents[i].ident_type;
cache_entry->idents[i] = tmp_ident;
}
/* Tell the TCAM processor to alloc an entry */
parms->tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_ALLOC;
/* Store the cache key for use by the tcam process code */
parms->cache_ptr = cache_entry;
} else {
/* Cache hit, get values from result. */
for (i = 0; i < num_idents; i++) {
regval = (uint64_t)cache_entry->idents[i];
if (!ulp_regfile_write(parms->regfile,
idents[i].regfile_idx,
tfp_cpu_to_be_64(regval))) {
BNXT_TF_DBG(ERR,
"Failed to write to regfile\n");
return -EINVAL;
}
}
/*
* The cached entry is being used, so let the tcam processing
* know not to process this table.
*/
parms->tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_SKIP;
}
/* Made through the cache processing, increment the reference count. */
cache_entry->ref_count++;
/* Link the cache to the flow db. */
memset(&fid_parms, 0, sizeof(fid_parms));
fid_parms.direction = tbl->direction;
fid_parms.resource_func = tbl->resource_func;
/*
* Cache resource type is composed of table_type, resource
* sub type and direction, it needs to set appropriately via setter.
*/
ulp_mapper_cache_res_type_set(&fid_parms,
tbl->resource_type,
(tbl->resource_sub_type << 1 |
(tbl->direction & 0x1)));
fid_parms.resource_hndl = (uint64_t)*ckey;
fid_parms.critical_resource = tbl->critical_resource;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
&fid_parms);
if (rc)
BNXT_TF_DBG(ERR, "Failed to add cache to flow db.\n");
return rc;
error:
/*
* This error handling only gets called when the idents are being
* allocated for the cache on misses. Using the num_idents that was
* previously set.
*/
for (i = 0; i < num_idents; i++) {
if (cache_entry->idents[i] == ULP_IDENTS_INVALID)
continue;
fparms.dir = tbl->direction;
fparms.ident_type = idents[i].ident_type;
fparms.id = cache_entry->idents[i];
tf_free_identifier(parms->tfp, &fparms);
}
return rc;
}
static int32_t
ulp_mapper_if_tbl_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
struct bnxt_ulp_mapper_result_field_info *flds;
struct ulp_blob data;
uint64_t idx;
uint16_t tmplen;
uint32_t i, num_flds;
int32_t rc = 0;
struct tf_set_if_tbl_entry_parms iftbl_params = { 0 };
struct tf *tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
uint32_t encap_flds;
/* Initialize the blob data */
if (!ulp_blob_init(&data, tbl->result_bit_size,
parms->device_params->byte_order)) {
BNXT_TF_DBG(ERR, "Failed initial index table blob\n");
return -EINVAL;
}
/* Get the result fields list */
flds = ulp_mapper_result_fields_get(tbl, &num_flds, &encap_flds);
if (!flds || !num_flds || encap_flds) {
BNXT_TF_DBG(ERR, "template undefined for the IF table\n");
return -EINVAL;
}
/* process the result fields, loop through them */
for (i = 0; i < num_flds; i++) {
/* Process the result fields */
rc = ulp_mapper_result_field_process(parms,
tbl->direction,
&flds[i],
&data,
"IFtable Result");
if (rc) {
BNXT_TF_DBG(ERR, "data field failed\n");
return rc;
}
}
/* Get the index details from computed field */
if (tbl->index_opcode == BNXT_ULP_INDEX_OPCODE_COMP_FIELD) {
idx = ULP_COMP_FLD_IDX_RD(parms, tbl->index_operand);
} else if (tbl->index_opcode == BNXT_ULP_INDEX_OPCODE_CONSTANT) {
idx = tbl->index_operand;
} else {
BNXT_TF_DBG(ERR, "Invalid tbl index opcode\n");
return -EINVAL;
}
/* Perform the tf table set by filling the set params */
iftbl_params.dir = tbl->direction;
iftbl_params.type = tbl->resource_type;
iftbl_params.data = ulp_blob_data_get(&data, &tmplen);
iftbl_params.data_sz_in_bytes = ULP_BITS_2_BYTE(tmplen);
iftbl_params.idx = idx;
rc = tf_set_if_tbl_entry(tfp, &iftbl_params);
if (rc) {
BNXT_TF_DBG(ERR, "Set table[%d][%s][%d] failed rc=%d\n",
iftbl_params.type,
(iftbl_params.dir == TF_DIR_RX) ? "RX" : "TX",
iftbl_params.idx,
rc);
return rc;
}
/*
* TBD: Need to look at the need to store idx in flow db for restore
* the table to its original state on deletion of this entry.
*/
return rc;
}
static int32_t
ulp_mapper_glb_resource_info_init(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mapper_data *mapper_data)
{
struct bnxt_ulp_glb_resource_info *glb_res;
uint32_t num_glb_res_ids, idx;
int32_t rc = 0;
glb_res = ulp_mapper_glb_resource_info_list_get(&num_glb_res_ids);
if (!glb_res || !num_glb_res_ids) {
BNXT_TF_DBG(ERR, "Invalid Arguments\n");
return -EINVAL;
}
/* Iterate the global resources and process each one */
for (idx = 0; idx < num_glb_res_ids; idx++) {
switch (glb_res[idx].resource_func) {
case BNXT_ULP_RESOURCE_FUNC_IDENTIFIER:
rc = ulp_mapper_resource_ident_allocate(ulp_ctx,
mapper_data,
&glb_res[idx]);
break;
case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
rc = ulp_mapper_resource_index_tbl_alloc(ulp_ctx,
mapper_data,
&glb_res[idx]);
break;
default:
BNXT_TF_DBG(ERR, "Global resource %x not supported\n",
glb_res[idx].resource_func);
rc = -EINVAL;
break;
}
if (rc)
return rc;
}
return rc;
}
/*
* Function to process the conditional opcode of the mapper table.
* returns 1 to skip the table.
* return 0 to continue processing the table.
*/
static int32_t
ulp_mapper_tbl_cond_opcode_process(struct bnxt_ulp_mapper_parms *parms,
struct bnxt_ulp_mapper_tbl_info *tbl)
{
int32_t rc = 1;
switch (tbl->cond_opcode) {
case BNXT_ULP_COND_OPCODE_NOP:
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_COMP_FIELD_IS_SET:
if (tbl->cond_operand < BNXT_ULP_CF_IDX_LAST &&
ULP_COMP_FLD_IDX_RD(parms, tbl->cond_operand))
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_ACTION_BIT_IS_SET:
if (ULP_BITMAP_ISSET(parms->act_bitmap->bits,
tbl->cond_operand))
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_HDR_BIT_IS_SET:
if (ULP_BITMAP_ISSET(parms->hdr_bitmap->bits,
tbl->cond_operand))
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_COMP_FIELD_NOT_SET:
if (tbl->cond_operand < BNXT_ULP_CF_IDX_LAST &&
!ULP_COMP_FLD_IDX_RD(parms, tbl->cond_operand))
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_ACTION_BIT_NOT_SET:
if (!ULP_BITMAP_ISSET(parms->act_bitmap->bits,
tbl->cond_operand))
rc = 0;
break;
case BNXT_ULP_COND_OPCODE_HDR_BIT_NOT_SET:
if (!ULP_BITMAP_ISSET(parms->hdr_bitmap->bits,
tbl->cond_operand))
rc = 0;
break;
default:
BNXT_TF_DBG(ERR,
"Invalid arg in mapper tbl for cond opcode\n");
break;
}
return rc;
}
/*
* Function to process the action template. Iterate through the list
* action info templates and process it.
*/
static int32_t
ulp_mapper_action_tbls_process(struct bnxt_ulp_mapper_parms *parms)
{
uint32_t i;
int32_t rc = 0;
struct bnxt_ulp_mapper_tbl_info *tbl;
if (!parms->atbls || !parms->num_atbls) {
BNXT_TF_DBG(ERR, "No action tables for template[%d][%d].\n",
parms->dev_id, parms->act_tid);
return -EINVAL;
}
for (i = 0; i < parms->num_atbls; i++) {
tbl = &parms->atbls[i];
if (ulp_mapper_tbl_cond_opcode_process(parms, tbl))
continue;
switch (tbl->resource_func) {
case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
rc = ulp_mapper_index_tbl_process(parms, tbl, false);
if (rc) {
BNXT_TF_DBG(ERR, "Resource type %d failed\n",
tbl->resource_func);
return rc;
}
break;
default:
BNXT_TF_DBG(ERR, "Unexpected action resource %d\n",
tbl->resource_func);
return -EINVAL;
}
}
return rc;
}
/* Create the classifier table entries for a flow. */
static int32_t
ulp_mapper_class_tbls_process(struct bnxt_ulp_mapper_parms *parms)
{
uint32_t i;
int32_t rc = 0;
if (!parms)
return -EINVAL;
if (!parms->ctbls || !parms->num_ctbls) {
BNXT_TF_DBG(ERR, "No class tables for template[%d][%d].\n",
parms->dev_id, parms->class_tid);
return -EINVAL;
}
for (i = 0; i < parms->num_ctbls; i++) {
struct bnxt_ulp_mapper_tbl_info *tbl = &parms->ctbls[i];
if (ulp_mapper_tbl_cond_opcode_process(parms, tbl))
continue;
switch (tbl->resource_func) {
case BNXT_ULP_RESOURCE_FUNC_TCAM_TABLE:
rc = ulp_mapper_tcam_tbl_process(parms, tbl);
break;
case BNXT_ULP_RESOURCE_FUNC_EXT_EM_TABLE:
case BNXT_ULP_RESOURCE_FUNC_INT_EM_TABLE:
rc = ulp_mapper_em_tbl_process(parms, tbl);
break;
case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
rc = ulp_mapper_index_tbl_process(parms, tbl, true);
break;
case BNXT_ULP_RESOURCE_FUNC_CACHE_TABLE:
rc = ulp_mapper_cache_tbl_process(parms, tbl);
break;
case BNXT_ULP_RESOURCE_FUNC_IF_TABLE:
rc = ulp_mapper_if_tbl_process(parms, tbl);
break;
default:
BNXT_TF_DBG(ERR, "Unexpected class resource %d\n",
tbl->resource_func);
return -EINVAL;
}
if (rc) {
BNXT_TF_DBG(ERR, "Resource type %d failed\n",
tbl->resource_func);
return rc;
}
}
return rc;
}
static int32_t
ulp_mapper_resource_free(struct bnxt_ulp_context *ulp,
struct ulp_flow_db_res_params *res)
{
struct tf *tfp;
int32_t rc = 0;
if (!res || !ulp) {
BNXT_TF_DBG(ERR, "Unable to free resource\n ");
return -EINVAL;
}
tfp = bnxt_ulp_cntxt_tfp_get(ulp);
if (!tfp) {
BNXT_TF_DBG(ERR, "Unable to free resource failed to get tfp\n");
return -EINVAL;
}
switch (res->resource_func) {
case BNXT_ULP_RESOURCE_FUNC_CACHE_TABLE:
rc = ulp_mapper_cache_entry_free(ulp, tfp, res);
break;
case BNXT_ULP_RESOURCE_FUNC_TCAM_TABLE:
rc = ulp_mapper_tcam_entry_free(ulp, tfp, res);
break;
case BNXT_ULP_RESOURCE_FUNC_EXT_EM_TABLE:
case BNXT_ULP_RESOURCE_FUNC_INT_EM_TABLE:
rc = ulp_mapper_em_entry_free(ulp, tfp, res);
break;
case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
rc = ulp_mapper_index_entry_free(ulp, tfp, res);
break;
case BNXT_ULP_RESOURCE_FUNC_IDENTIFIER:
rc = ulp_mapper_ident_free(ulp, tfp, res);
break;
case BNXT_ULP_RESOURCE_FUNC_HW_FID:
rc = ulp_mapper_mark_free(ulp, res);
break;
default:
break;
}
return rc;
}
int32_t
ulp_mapper_resources_free(struct bnxt_ulp_context *ulp_ctx,
uint32_t fid,
enum bnxt_ulp_flow_db_tables tbl_type)
{
struct ulp_flow_db_res_params res_parms = { 0 };
int32_t rc, trc;
if (!ulp_ctx) {
BNXT_TF_DBG(ERR, "Invalid parms, unable to free flow\n");
return -EINVAL;
}
/*
* Set the critical resource on the first resource del, then iterate
* while status is good
*/
res_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_YES;
rc = ulp_flow_db_resource_del(ulp_ctx, tbl_type, fid, &res_parms);
if (rc) {
/*
* This is unexpected on the first call to resource del.
* It likely means that the flow did not exist in the flow db.
*/
BNXT_TF_DBG(ERR, "Flow[%d][0x%08x] failed to free (rc=%d)\n",
tbl_type, fid, rc);
return rc;
}
while (!rc) {
trc = ulp_mapper_resource_free(ulp_ctx, &res_parms);
if (trc)
/*
* On fail, we still need to attempt to free the
* remaining resources. Don't return
*/
BNXT_TF_DBG(ERR,
"Flow[%d][0x%x] Res[%d][0x%016" PRIx64
"] failed rc=%d.\n",
tbl_type, fid, res_parms.resource_func,
res_parms.resource_hndl, trc);
/* All subsequent call require the non-critical_resource */
res_parms.critical_resource = BNXT_ULP_CRITICAL_RESOURCE_NO;
rc = ulp_flow_db_resource_del(ulp_ctx,
tbl_type,
fid,
&res_parms);
}
/* Free the Flow ID since we've removed all resources */
rc = ulp_flow_db_fid_free(ulp_ctx, tbl_type, fid);
return rc;
}
static void
ulp_mapper_glb_resource_info_deinit(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mapper_data *mapper_data)
{
struct bnxt_ulp_mapper_glb_resource_entry *ent;
struct ulp_flow_db_res_params res;
uint32_t dir, idx;
/* Iterate the global resources and process each one */
for (dir = TF_DIR_RX; dir < TF_DIR_MAX; dir++) {
for (idx = 0; idx < BNXT_ULP_GLB_RESOURCE_TBL_MAX_SZ;
idx++) {
ent = &mapper_data->glb_res_tbl[dir][idx];
if (ent->resource_func ==
BNXT_ULP_RESOURCE_FUNC_INVALID)
continue;
memset(&res, 0, sizeof(struct ulp_flow_db_res_params));
res.resource_func = ent->resource_func;
res.direction = dir;
res.resource_type = ent->resource_type;
/*convert it from BE to cpu */
res.resource_hndl =
tfp_be_to_cpu_64(ent->resource_hndl);
ulp_mapper_resource_free(ulp_ctx, &res);
}
}
}
int32_t
ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx, uint32_t fid,
enum bnxt_ulp_flow_db_tables flow_tbl_type)
{
if (!ulp_ctx) {
BNXT_TF_DBG(ERR, "Invalid parms, unable to free flow\n");
return -EINVAL;
}
return ulp_mapper_resources_free(ulp_ctx, fid, flow_tbl_type);
}
/* Function to handle the default global templates that are allocated during
* the startup and reused later.
*/
static int32_t
ulp_mapper_glb_template_table_init(struct bnxt_ulp_context *ulp_ctx)
{
uint32_t *glbl_tmpl_list;
uint32_t num_glb_tmpls, idx, dev_id;
struct bnxt_ulp_mapper_parms parms;
struct bnxt_ulp_mapper_data *mapper_data;
int32_t rc = 0;
glbl_tmpl_list = ulp_mapper_glb_template_table_get(&num_glb_tmpls);
if (!glbl_tmpl_list || !num_glb_tmpls)
return rc; /* No global templates to process */
/* Get the device id from the ulp context */
if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &dev_id)) {
BNXT_TF_DBG(ERR, "Invalid ulp context\n");
return -EINVAL;
}
mapper_data = bnxt_ulp_cntxt_ptr2_mapper_data_get(ulp_ctx);
if (!mapper_data) {
BNXT_TF_DBG(ERR, "Failed to get the ulp mapper data\n");
return -EINVAL;
}
/* Iterate the global resources and process each one */
for (idx = 0; idx < num_glb_tmpls; idx++) {
/* Initialize the parms structure */
memset(&parms, 0, sizeof(parms));
parms.tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
parms.ulp_ctx = ulp_ctx;
parms.dev_id = dev_id;
parms.mapper_data = mapper_data;
/* Get the class table entry from dev id and class id */
parms.class_tid = glbl_tmpl_list[idx];
parms.ctbls = ulp_mapper_class_tbl_list_get(parms.dev_id,
parms.class_tid,
&parms.num_ctbls,
&parms.tbl_idx);
if (!parms.ctbls || !parms.num_ctbls) {
BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
parms.dev_id, parms.class_tid);
return -EINVAL;
}
parms.device_params = bnxt_ulp_device_params_get(parms.dev_id);
if (!parms.device_params) {
BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
parms.dev_id, parms.class_tid);
return -EINVAL;
}
rc = ulp_mapper_class_tbls_process(&parms);
if (rc) {
BNXT_TF_DBG(ERR,
"class tables failed creation for %d:%d\n",
parms.dev_id, parms.class_tid);
return rc;
}
}
return rc;
}
/* Function to handle the mapping of the Flow to be compatible
* with the underlying hardware.
*/
int32_t
ulp_mapper_flow_create(struct bnxt_ulp_context *ulp_ctx,
struct bnxt_ulp_mapper_create_parms *cparms,
uint32_t *flowid)
{
struct bnxt_ulp_mapper_parms parms;
struct ulp_regfile regfile;
int32_t rc, trc;
if (!ulp_ctx || !cparms)
return -EINVAL;
/* Initialize the parms structure */
memset(&parms, 0, sizeof(parms));
parms.act_prop = cparms->act_prop;
parms.act_bitmap = cparms->act;
parms.hdr_bitmap = cparms->hdr_bitmap;
parms.regfile = &regfile;
parms.hdr_field = cparms->hdr_field;
parms.comp_fld = cparms->comp_fld;
parms.tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
parms.ulp_ctx = ulp_ctx;
parms.tcam_tbl_opc = BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL;
/* Get the device id from the ulp context */
if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &parms.dev_id)) {
BNXT_TF_DBG(ERR, "Invalid ulp context\n");
return -EINVAL;
}
/*
* Get the mapper data for dynamic mapper data such as default
* ids.
*/
parms.mapper_data = (struct bnxt_ulp_mapper_data *)
bnxt_ulp_cntxt_ptr2_mapper_data_get(ulp_ctx);
if (!parms.mapper_data) {
BNXT_TF_DBG(ERR, "Failed to get the ulp mapper data\n");
return -EINVAL;
}
/* Get the action table entry from device id and act context id */
parms.act_tid = cparms->act_tid;
/*
* Perform the action table get only if act template is not zero
* for act template zero like for default rules ignore the action
* table processing.
*/
if (parms.act_tid) {
parms.atbls = ulp_mapper_action_tbl_list_get(parms.dev_id,
parms.act_tid,
&parms.num_atbls);
if (!parms.atbls || !parms.num_atbls) {
BNXT_TF_DBG(ERR, "No action tables for %d:%d\n",
parms.dev_id, parms.act_tid);
return -EINVAL;
}
}
/* Get the class table entry from device id and act context id */
parms.class_tid = cparms->class_tid;
parms.ctbls = ulp_mapper_class_tbl_list_get(parms.dev_id,
parms.class_tid,
&parms.num_ctbls,
&parms.tbl_idx);
if (!parms.ctbls || !parms.num_ctbls) {
BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
parms.dev_id, parms.class_tid);
return -EINVAL;
}
/* Get the device params, it will be used in later processing */
parms.device_params = bnxt_ulp_device_params_get(parms.dev_id);
if (!parms.device_params) {
BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
parms.dev_id, parms.class_tid);
return -EINVAL;
}
/* initialize the registry file for further processing */
if (!ulp_regfile_init(parms.regfile)) {
BNXT_TF_DBG(ERR, "regfile initialization failed.\n");
return -EINVAL;
}
rc = ulp_regfile_write(parms.regfile,
BNXT_ULP_REGFILE_INDEX_CLASS_TID,
tfp_cpu_to_be_64((uint64_t)parms.class_tid));
if (!rc) {
BNXT_TF_DBG(ERR, "Unable to write template ID to regfile\n");
return -EINVAL;
}
/* Allocate a Flow ID for attaching all resources for the flow to.
* Once allocated, all errors have to walk the list of resources and
* free each of them.
*/
rc = ulp_flow_db_fid_alloc(ulp_ctx,
parms.tbl_idx,
cparms->func_id,
&parms.fid);
if (rc) {
BNXT_TF_DBG(ERR, "Unable to allocate flow table entry\n");
return rc;
}
/* Process the action template list from the selected action table*/
if (parms.act_tid) {
rc = ulp_mapper_action_tbls_process(&parms);
if (rc) {
BNXT_TF_DBG(ERR,
"action tables failed creation for %d:%d\n",
parms.dev_id, parms.act_tid);
goto flow_error;
}
}
/* All good. Now process the class template */
rc = ulp_mapper_class_tbls_process(&parms);
if (rc) {
BNXT_TF_DBG(ERR, "class tables failed creation for %d:%d\n",
parms.dev_id, parms.class_tid);
goto flow_error;
}
*flowid = parms.fid;
return rc;
flow_error:
/* Free all resources that were allocated during flow creation */
trc = ulp_mapper_flow_destroy(ulp_ctx, parms.fid,
BNXT_ULP_REGULAR_FLOW_TABLE);
if (trc)
BNXT_TF_DBG(ERR, "Failed to free all resources rc=%d\n", trc);
return rc;
}
int32_t
ulp_mapper_init(struct bnxt_ulp_context *ulp_ctx)
{
struct bnxt_ulp_cache_tbl_params *tbl;
struct bnxt_ulp_mapper_data *data;
uint32_t i;
struct tf *tfp;
int32_t rc, csize;
if (!ulp_ctx)
return -EINVAL;
tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
if (!tfp)
return -EINVAL;
data = rte_zmalloc("ulp_mapper_data",
sizeof(struct bnxt_ulp_mapper_data), 0);
if (!data) {
BNXT_TF_DBG(ERR, "Failed to allocate the mapper data\n");
return -ENOMEM;
}
if (bnxt_ulp_cntxt_ptr2_mapper_data_set(ulp_ctx, data)) {
BNXT_TF_DBG(ERR, "Failed to set mapper data in context\n");
/* Don't call deinit since the prof_func wasn't allocated. */
rte_free(data);
return -ENOMEM;
}
/* Allocate the global resource ids */
rc = ulp_mapper_glb_resource_info_init(ulp_ctx, data);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to initialize global resource ids\n");
goto error;
}
/* Allocate the ulp cache tables. */
for (i = 0; i < BNXT_ULP_CACHE_TBL_MAX_SZ; i++) {
tbl = ulp_mapper_cache_tbl_params_get(i);
if (!tbl) {
BNXT_TF_DBG(ERR, "Failed to get cache table parms (%d)",
i);
goto error;
}
if (tbl->num_entries != 0) {
csize = sizeof(struct bnxt_ulp_mapper_cache_entry) *
tbl->num_entries;
data->cache_tbl[i] = rte_zmalloc("ulp mapper cache tbl",
csize, 0);
if (!data->cache_tbl[i]) {
BNXT_TF_DBG(ERR, "Failed to allocate Cache "
"table %d.\n", i);
rc = -ENOMEM;
goto error;
}
}
}
rc = ulp_mapper_glb_template_table_init(ulp_ctx);
if (rc) {
BNXT_TF_DBG(ERR, "Failed to initialize global templates\n");
goto error;
}
return 0;
error:
/* Ignore the return code in favor of returning the original error. */
ulp_mapper_deinit(ulp_ctx);
return rc;
}
void
ulp_mapper_deinit(struct bnxt_ulp_context *ulp_ctx)
{
struct bnxt_ulp_mapper_data *data;
uint32_t i;
struct tf *tfp;
if (!ulp_ctx) {
BNXT_TF_DBG(ERR,
"Failed to acquire ulp context, so data may "
"not be released.\n");
return;
}
data = (struct bnxt_ulp_mapper_data *)
bnxt_ulp_cntxt_ptr2_mapper_data_get(ulp_ctx);
if (!data) {
/* Go ahead and return since there is no allocated data. */
BNXT_TF_DBG(ERR, "No data appears to have been allocated.\n");
return;
}
tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
if (!tfp) {
BNXT_TF_DBG(ERR, "Failed to acquire tfp.\n");
/* Free the mapper data regardless of errors. */
goto free_mapper_data;
}
/* Free the global resource info table entries */
ulp_mapper_glb_resource_info_deinit(ulp_ctx, data);
free_mapper_data:
/* Free the ulp cache tables */
for (i = 0; i < BNXT_ULP_CACHE_TBL_MAX_SZ; i++) {
rte_free(data->cache_tbl[i]);
data->cache_tbl[i] = NULL;
}
rte_free(data);
/* Reset the data pointer within the ulp_ctx. */
bnxt_ulp_cntxt_ptr2_mapper_data_set(ulp_ctx, NULL);
}
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