eal: add internal function to get base address
[dpdk.git] / lib / pipeline / rte_swx_pipeline_spec.c
index c57893f..07a7580 100644 (file)
 #define TABLE_ACTIONS_BLOCK 4
 #define SELECTOR_BLOCK 5
 #define SELECTOR_SELECTOR_BLOCK 6
-#define APPLY_BLOCK 7
+#define LEARNER_BLOCK 7
+#define LEARNER_KEY_BLOCK 8
+#define LEARNER_ACTIONS_BLOCK 9
+#define APPLY_BLOCK 10
 
 /*
  * extobj.
@@ -536,7 +539,7 @@ action_block_parse(struct action_spec *s,
  *             ...
  *     }
  *     actions {
- *             ACTION_NAME
+ *             ACTION_NAME [ @tableonly | @defaultonly ]
  *             ...
  *     }
  *     default_action ACTION_NAME args none | ARGS_BYTE_ARRAY [ const ]
@@ -594,6 +597,12 @@ table_spec_free(struct table_spec *s)
        free(s->params.default_action_data);
        s->params.default_action_data = NULL;
 
+       free(s->params.action_is_for_table_entries);
+       s->params.action_is_for_table_entries = NULL;
+
+       free(s->params.action_is_for_default_entry);
+       s->params.action_is_for_default_entry = NULL;
+
        s->params.default_action_is_const = 0;
 
        free(s->recommended_table_type_name);
@@ -727,8 +736,10 @@ table_actions_block_parse(struct table_spec *s,
                          uint32_t *err_line,
                          const char **err_msg)
 {
-       const char **new_action_names;
-       char *name;
+       const char **new_action_names = NULL;
+       int *new_action_is_for_table_entries = NULL, *new_action_is_for_default_entry = NULL;
+       char *name = NULL;
+       int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
 
        /* Handle end of block. */
        if ((n_tokens == 1) && !strcmp(tokens[0], "}")) {
@@ -737,7 +748,9 @@ table_actions_block_parse(struct table_spec *s,
        }
 
        /* Check input arguments. */
-       if (n_tokens != 1) {
+       if ((n_tokens > 2) ||
+           ((n_tokens == 2) && strcmp(tokens[1], "@tableonly") &&
+             strcmp(tokens[1], "@defaultonly"))) {
                if (err_line)
                        *err_line = n_lines;
                if (err_msg)
@@ -746,18 +759,30 @@ table_actions_block_parse(struct table_spec *s,
        }
 
        name = strdup(tokens[0]);
-       if (!name) {
-               if (err_line)
-                       *err_line = n_lines;
-               if (err_msg)
-                       *err_msg = "Memory allocation failed.";
-               return -ENOMEM;
+
+       if (n_tokens == 2) {
+               if (!strcmp(tokens[1], "@tableonly"))
+                       action_is_for_default_entry = 0;
+
+               if (!strcmp(tokens[1], "@defaultonly"))
+                       action_is_for_table_entries = 0;
        }
 
        new_action_names = realloc(s->params.action_names,
                                   (s->params.n_actions + 1) * sizeof(char *));
-       if (!new_action_names) {
+       new_action_is_for_table_entries = realloc(s->params.action_is_for_table_entries,
+                                                 (s->params.n_actions + 1) * sizeof(int));
+       new_action_is_for_default_entry = realloc(s->params.action_is_for_default_entry,
+                                                 (s->params.n_actions + 1) * sizeof(int));
+
+       if (!name ||
+           !new_action_names ||
+           !new_action_is_for_table_entries ||
+           !new_action_is_for_default_entry) {
                free(name);
+               free(new_action_names);
+               free(new_action_is_for_table_entries);
+               free(new_action_is_for_default_entry);
 
                if (err_line)
                        *err_line = n_lines;
@@ -768,6 +793,13 @@ table_actions_block_parse(struct table_spec *s,
 
        s->params.action_names = new_action_names;
        s->params.action_names[s->params.n_actions] = name;
+
+       s->params.action_is_for_table_entries = new_action_is_for_table_entries;
+       s->params.action_is_for_table_entries[s->params.n_actions] = action_is_for_table_entries;
+
+       s->params.action_is_for_default_entry = new_action_is_for_default_entry;
+       s->params.action_is_for_default_entry[s->params.n_actions] = action_is_for_default_entry;
+
        s->params.n_actions++;
 
        return 0;
@@ -1281,6 +1313,427 @@ selector_block_parse(struct selector_spec *s,
        return -EINVAL;
 }
 
+/*
+ * learner.
+ *
+ * learner {
+ *     key {
+ *             MATCH_FIELD_NAME
+ *             ...
+ *     }
+ *     actions {
+ *             ACTION_NAME [ @tableonly | @defaultonly]
+ *             ...
+ *     }
+ *     default_action ACTION_NAME args none | ARGS_BYTE_ARRAY [ const ]
+ *     size SIZE
+ *     timeout TIMEOUT_IN_SECONDS
+ * }
+ */
+struct learner_spec {
+       char *name;
+       struct rte_swx_pipeline_learner_params params;
+       uint32_t size;
+       uint32_t timeout;
+};
+
+static void
+learner_spec_free(struct learner_spec *s)
+{
+       uintptr_t default_action_name;
+       uint32_t i;
+
+       if (!s)
+               return;
+
+       free(s->name);
+       s->name = NULL;
+
+       for (i = 0; i < s->params.n_fields; i++) {
+               uintptr_t name = (uintptr_t)s->params.field_names[i];
+
+               free((void *)name);
+       }
+
+       free(s->params.field_names);
+       s->params.field_names = NULL;
+
+       s->params.n_fields = 0;
+
+       for (i = 0; i < s->params.n_actions; i++) {
+               uintptr_t name = (uintptr_t)s->params.action_names[i];
+
+               free((void *)name);
+       }
+
+       free(s->params.action_names);
+       s->params.action_names = NULL;
+
+       s->params.n_actions = 0;
+
+       default_action_name = (uintptr_t)s->params.default_action_name;
+       free((void *)default_action_name);
+       s->params.default_action_name = NULL;
+
+       free(s->params.default_action_data);
+       s->params.default_action_data = NULL;
+
+       free(s->params.action_is_for_table_entries);
+       s->params.action_is_for_table_entries = NULL;
+
+       free(s->params.action_is_for_default_entry);
+       s->params.action_is_for_default_entry = NULL;
+
+       s->params.default_action_is_const = 0;
+
+       s->size = 0;
+
+       s->timeout = 0;
+}
+
+static int
+learner_key_statement_parse(uint32_t *block_mask,
+                           char **tokens,
+                           uint32_t n_tokens,
+                           uint32_t n_lines,
+                           uint32_t *err_line,
+                           const char **err_msg)
+{
+       /* Check format. */
+       if ((n_tokens != 2) || strcmp(tokens[1], "{")) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Invalid key statement.";
+               return -EINVAL;
+       }
+
+       /* block_mask. */
+       *block_mask |= 1 << LEARNER_KEY_BLOCK;
+
+       return 0;
+}
+
+static int
+learner_key_block_parse(struct learner_spec *s,
+                       uint32_t *block_mask,
+                       char **tokens,
+                       uint32_t n_tokens,
+                       uint32_t n_lines,
+                       uint32_t *err_line,
+                       const char **err_msg)
+{
+       const char **new_field_names = NULL;
+       char *field_name = NULL;
+
+       /* Handle end of block. */
+       if ((n_tokens == 1) && !strcmp(tokens[0], "}")) {
+               *block_mask &= ~(1 << LEARNER_KEY_BLOCK);
+               return 0;
+       }
+
+       /* Check input arguments. */
+       if (n_tokens != 1) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Invalid match field statement.";
+               return -EINVAL;
+       }
+
+       field_name = strdup(tokens[0]);
+       new_field_names = realloc(s->params.field_names, (s->params.n_fields + 1) * sizeof(char *));
+       if (!field_name || !new_field_names) {
+               free(field_name);
+               free(new_field_names);
+
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Memory allocation failed.";
+               return -ENOMEM;
+       }
+
+       s->params.field_names = new_field_names;
+       s->params.field_names[s->params.n_fields] = field_name;
+       s->params.n_fields++;
+
+       return 0;
+}
+
+static int
+learner_actions_statement_parse(uint32_t *block_mask,
+                               char **tokens,
+                               uint32_t n_tokens,
+                               uint32_t n_lines,
+                               uint32_t *err_line,
+                               const char **err_msg)
+{
+       /* Check format. */
+       if ((n_tokens != 2) || strcmp(tokens[1], "{")) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Invalid actions statement.";
+               return -EINVAL;
+       }
+
+       /* block_mask. */
+       *block_mask |= 1 << LEARNER_ACTIONS_BLOCK;
+
+       return 0;
+}
+
+static int
+learner_actions_block_parse(struct learner_spec *s,
+                           uint32_t *block_mask,
+                           char **tokens,
+                           uint32_t n_tokens,
+                           uint32_t n_lines,
+                           uint32_t *err_line,
+                           const char **err_msg)
+{
+       const char **new_action_names = NULL;
+       int *new_action_is_for_table_entries = NULL, *new_action_is_for_default_entry = NULL;
+       char *name = NULL;
+       int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
+
+       /* Handle end of block. */
+       if ((n_tokens == 1) && !strcmp(tokens[0], "}")) {
+               *block_mask &= ~(1 << LEARNER_ACTIONS_BLOCK);
+               return 0;
+       }
+
+       /* Check input arguments. */
+       if ((n_tokens > 2) ||
+           ((n_tokens == 2) && strcmp(tokens[1], "@tableonly") &&
+             strcmp(tokens[1], "@defaultonly"))) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Invalid action name statement.";
+               return -EINVAL;
+       }
+
+       name = strdup(tokens[0]);
+
+       if (n_tokens == 2) {
+               if (!strcmp(tokens[1], "@tableonly"))
+                       action_is_for_default_entry = 0;
+
+               if (!strcmp(tokens[1], "@defaultonly"))
+                       action_is_for_table_entries = 0;
+       }
+
+       new_action_names = realloc(s->params.action_names,
+                                  (s->params.n_actions + 1) * sizeof(char *));
+       new_action_is_for_table_entries = realloc(s->params.action_is_for_table_entries,
+                                                 (s->params.n_actions + 1) * sizeof(int));
+       new_action_is_for_default_entry = realloc(s->params.action_is_for_default_entry,
+                                                 (s->params.n_actions + 1) * sizeof(int));
+
+       if (!name ||
+           !new_action_names ||
+           !new_action_is_for_table_entries ||
+           !new_action_is_for_default_entry) {
+               free(name);
+               free(new_action_names);
+               free(new_action_is_for_table_entries);
+               free(new_action_is_for_default_entry);
+
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Memory allocation failed.";
+               return -ENOMEM;
+       }
+
+       s->params.action_names = new_action_names;
+       s->params.action_names[s->params.n_actions] = name;
+
+       s->params.action_is_for_table_entries = new_action_is_for_table_entries;
+       s->params.action_is_for_table_entries[s->params.n_actions] = action_is_for_table_entries;
+
+       s->params.action_is_for_default_entry = new_action_is_for_default_entry;
+       s->params.action_is_for_default_entry[s->params.n_actions] = action_is_for_default_entry;
+
+       s->params.n_actions++;
+
+       return 0;
+}
+
+static int
+learner_statement_parse(struct learner_spec *s,
+                     uint32_t *block_mask,
+                     char **tokens,
+                     uint32_t n_tokens,
+                     uint32_t n_lines,
+                     uint32_t *err_line,
+                     const char **err_msg)
+{
+       /* Check format. */
+       if ((n_tokens != 3) || strcmp(tokens[2], "{")) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Invalid learner statement.";
+               return -EINVAL;
+       }
+
+       /* spec. */
+       s->name = strdup(tokens[1]);
+       if (!s->name) {
+               if (err_line)
+                       *err_line = n_lines;
+               if (err_msg)
+                       *err_msg = "Memory allocation failed.";
+               return -ENOMEM;
+       }
+
+       /* block_mask. */
+       *block_mask |= 1 << LEARNER_BLOCK;
+
+       return 0;
+}
+
+static int
+learner_block_parse(struct learner_spec *s,
+                   uint32_t *block_mask,
+                   char **tokens,
+                   uint32_t n_tokens,
+                   uint32_t n_lines,
+                   uint32_t *err_line,
+                   const char **err_msg)
+{
+       if (*block_mask & (1 << LEARNER_KEY_BLOCK))
+               return learner_key_block_parse(s,
+                                              block_mask,
+                                              tokens,
+                                              n_tokens,
+                                              n_lines,
+                                              err_line,
+                                              err_msg);
+
+       if (*block_mask & (1 << LEARNER_ACTIONS_BLOCK))
+               return learner_actions_block_parse(s,
+                                                  block_mask,
+                                                  tokens,
+                                                  n_tokens,
+                                                  n_lines,
+                                                  err_line,
+                                                  err_msg);
+
+       /* Handle end of block. */
+       if ((n_tokens == 1) && !strcmp(tokens[0], "}")) {
+               *block_mask &= ~(1 << LEARNER_BLOCK);
+               return 0;
+       }
+
+       if (!strcmp(tokens[0], "key"))
+               return learner_key_statement_parse(block_mask,
+                                                  tokens,
+                                                  n_tokens,
+                                                  n_lines,
+                                                  err_line,
+                                                  err_msg);
+
+       if (!strcmp(tokens[0], "actions"))
+               return learner_actions_statement_parse(block_mask,
+                                                      tokens,
+                                                      n_tokens,
+                                                      n_lines,
+                                                      err_line,
+                                                      err_msg);
+
+       if (!strcmp(tokens[0], "default_action")) {
+               if (((n_tokens != 4) && (n_tokens != 5)) ||
+                   strcmp(tokens[2], "args") ||
+                   strcmp(tokens[3], "none") ||
+                   ((n_tokens == 5) && strcmp(tokens[4], "const"))) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Invalid default_action statement.";
+                       return -EINVAL;
+               }
+
+               if (s->params.default_action_name) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Duplicate default_action stmt.";
+                       return -EINVAL;
+               }
+
+               s->params.default_action_name = strdup(tokens[1]);
+               if (!s->params.default_action_name) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Memory allocation failed.";
+                       return -ENOMEM;
+               }
+
+               if (n_tokens == 5)
+                       s->params.default_action_is_const = 1;
+
+               return 0;
+       }
+
+       if (!strcmp(tokens[0], "size")) {
+               char *p = tokens[1];
+
+               if (n_tokens != 2) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Invalid size statement.";
+                       return -EINVAL;
+               }
+
+               s->size = strtoul(p, &p, 0);
+               if (p[0]) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Invalid size argument.";
+                       return -EINVAL;
+               }
+
+               return 0;
+       }
+
+       if (!strcmp(tokens[0], "timeout")) {
+               char *p = tokens[1];
+
+               if (n_tokens != 2) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Invalid timeout statement.";
+                       return -EINVAL;
+               }
+
+               s->timeout = strtoul(p, &p, 0);
+               if (p[0]) {
+                       if (err_line)
+                               *err_line = n_lines;
+                       if (err_msg)
+                               *err_msg = "Invalid timeout argument.";
+                       return -EINVAL;
+               }
+
+               return 0;
+       }
+
+       /* Anything else. */
+       if (err_line)
+               *err_line = n_lines;
+       if (err_msg)
+               *err_msg = "Invalid statement.";
+       return -EINVAL;
+}
+
 /*
  * regarray.
  *
@@ -1545,6 +1998,7 @@ rte_swx_pipeline_build_from_spec(struct rte_swx_pipeline *p,
        struct action_spec action_spec = {0};
        struct table_spec table_spec = {0};
        struct selector_spec selector_spec = {0};
+       struct learner_spec learner_spec = {0};
        struct regarray_spec regarray_spec = {0};
        struct metarray_spec metarray_spec = {0};
        struct apply_spec apply_spec = {0};
@@ -1557,7 +2011,7 @@ rte_swx_pipeline_build_from_spec(struct rte_swx_pipeline *p,
                if (err_line)
                        *err_line = 0;
                if (err_msg)
-                       *err_msg = "Null pipeline arument.";
+                       *err_msg = "Null pipeline argument.";
                status = -EINVAL;
                goto error;
        }
@@ -1761,6 +2215,40 @@ rte_swx_pipeline_build_from_spec(struct rte_swx_pipeline *p,
                        continue;
                }
 
+               /* learner block. */
+               if (block_mask & (1 << LEARNER_BLOCK)) {
+                       status = learner_block_parse(&learner_spec,
+                                                    &block_mask,
+                                                    tokens,
+                                                    n_tokens,
+                                                    n_lines,
+                                                    err_line,
+                                                    err_msg);
+                       if (status)
+                               goto error;
+
+                       if (block_mask & (1 << LEARNER_BLOCK))
+                               continue;
+
+                       /* End of block. */
+                       status = rte_swx_pipeline_learner_config(p,
+                               learner_spec.name,
+                               &learner_spec.params,
+                               learner_spec.size,
+                               learner_spec.timeout);
+                       if (status) {
+                               if (err_line)
+                                       *err_line = n_lines;
+                               if (err_msg)
+                                       *err_msg = "Learner table configuration error.";
+                               goto error;
+                       }
+
+                       learner_spec_free(&learner_spec);
+
+                       continue;
+               }
+
                /* apply block. */
                if (block_mask & (1 << APPLY_BLOCK)) {
                        status = apply_block_parse(&apply_spec,
@@ -1934,6 +2422,21 @@ rte_swx_pipeline_build_from_spec(struct rte_swx_pipeline *p,
                        continue;
                }
 
+               /* learner. */
+               if (!strcmp(tokens[0], "learner")) {
+                       status = learner_statement_parse(&learner_spec,
+                                                        &block_mask,
+                                                        tokens,
+                                                        n_tokens,
+                                                        n_lines,
+                                                        err_line,
+                                                        err_msg);
+                       if (status)
+                               goto error;
+
+                       continue;
+               }
+
                /* regarray. */
                if (!strcmp(tokens[0], "regarray")) {
                        status = regarray_statement_parse(&regarray_spec,
@@ -2042,6 +2545,7 @@ error:
        action_spec_free(&action_spec);
        table_spec_free(&table_spec);
        selector_spec_free(&selector_spec);
+       learner_spec_free(&learner_spec);
        regarray_spec_free(&regarray_spec);
        metarray_spec_free(&metarray_spec);
        apply_spec_free(&apply_spec);