#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)
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 tf *tfp;
int32_t rc, trc;
struct tf_alloc_tcam_entry_parms aparms = { 0 };
+ struct tf_search_tcam_entry_parms searchparms = { 0 };
struct tf_set_tcam_entry_parms sparms = { 0 };
struct ulp_flow_db_res_params fid_parms = { 0 };
struct tf_free_tcam_entry_parms free_parms = { 0 };
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) {
}
}
- 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;
- }
+ if (!tbl->srch_b4_alloc) {
+ /*
+ * 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.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;
+ 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;
- }
+ /*
+ * 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;
+ }
- hit = aparms.hit;
+ /* 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;
+ }
/* Build the result */
if (!tbl->srch_b4_alloc || !hit) {
}
}
- sparms.dir = aparms.dir;
- sparms.tcam_tbl_type = aparms.tcam_tbl_type;
- sparms.idx = aparms.idx;
+ 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);
rc = -EINVAL;
goto error;
}
- parms->cache_ptr->tcam_idx = aparms.idx;
+ parms->cache_ptr->tcam_idx = idx;
}
/* Mark action */
goto error;
} else {
- BNXT_TF_DBG(ERR, "Not supporting search before alloc now\n");
- rc = -EINVAL;
- goto error;
+ struct bnxt_ulp_mapper_ident_info *idents;
+ uint32_t num_idents;
+
+ /*
+ * 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 ident extraction\n");
+ goto error;
+ }
+ }
}
/*
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 = aparms.idx;
+ fid_parms.resource_hndl = idx;
rc = ulp_flow_db_resource_add(parms->ulp_ctx,
parms->tbl_idx,
parms->fid,
git.droids-corp.org / dpdk.git / blobdiff