#include <stdio.h>
#include <errno.h>
#include <arpa/inet.h>
+#include <dlfcn.h>
#include "rte_swx_pipeline_internal.h"
static int
action_has_nbo_args(struct action *a);
+static int
+learner_action_args_check(struct rte_swx_pipeline *p, struct action *a, const char *mf_name);
+
static int
instr_learn_translate(struct rte_swx_pipeline *p,
struct action *action,
struct instruction_data *data __rte_unused)
{
struct action *a;
+ const char *mf_name;
+ uint32_t mf_offset = 0;
CHECK(action, EINVAL);
- CHECK(n_tokens == 2, EINVAL);
+ CHECK((n_tokens == 2) || (n_tokens == 3), EINVAL);
a = action_find(p, tokens[1]);
CHECK(a, EINVAL);
CHECK(!action_has_nbo_args(a), EINVAL);
+ mf_name = (n_tokens > 2) ? tokens[2] : NULL;
+ CHECK(!learner_action_args_check(p, a, mf_name), EINVAL);
+
+ if (mf_name) {
+ struct field *mf;
+
+ mf = metadata_field_parse(p, mf_name);
+ CHECK(mf, EINVAL);
+
+ mf_offset = mf->offset / 8;
+ }
+
instr->type = INSTR_LEARNER_LEARN;
instr->learn.action_id = a->id;
+ instr->learn.mf_offset = mf_offset;
return 0;
}
instr->meter.color_out.struct_id = (uint8_t)color_out_struct_id;
instr->meter.color_out.n_bits = fcout->n_bits;
instr->meter.color_out.offset = fcout->offset / 8;
-
- return 0;
}
/* index = HMEFT, length = HMEFT, color_in = I, color_out = MEF. */
instr->meter.color_out.struct_id = (uint8_t)color_out_struct_id;
instr->meter.color_out.n_bits = fcout->n_bits;
instr->meter.color_out.offset = fcout->offset / 8;
-
- return 0;
}
/* index = I, length = HMEFT, color_in = MEFT, color_out = MEF. */
instr->meter.color_out.struct_id = (uint8_t)color_out_struct_id;
instr->meter.color_out.n_bits = fcout->n_bits;
instr->meter.color_out.offset = fcout->offset / 8;
-
- return 0;
}
/* index = I, length = HMEFT, color_in = I, color_out = MEF. */
instr->meter.color_out.struct_id = (uint8_t)color_out_struct_id;
instr->meter.color_out.n_bits = fcout->n_bits;
instr->meter.color_out.offset = fcout->offset / 8;
-
- return 0;
}
- CHECK(0, EINVAL);
+ return 0;
}
static inline void
instr,
data);
- CHECK(0, EINVAL);
+ return -EINVAL;
}
static struct instruction_data *
continue;
for (j = i + 1; j < n_instructions; j++)
- CHECK(strcmp(label, data[j].label), EINVAL);
+ CHECK(strcmp(label, instruction_data[j].label), EINVAL);
}
/* Get users for each instruction label. */
uint32_t size)
{
struct table_type *type;
- struct table *t;
+ struct table *t = NULL;
struct action *default_action;
struct header *header = NULL;
uint32_t action_data_size_max = 0, i;
const char *action_name = params->action_names[i];
struct action *a;
uint32_t action_data_size;
+ int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
CHECK_NAME(action_name, EINVAL);
action_data_size = a->st ? a->st->n_bits / 8 : 0;
if (action_data_size > action_data_size_max)
action_data_size_max = action_data_size;
+
+ if (params->action_is_for_table_entries)
+ action_is_for_table_entries = params->action_is_for_table_entries[i];
+ if (params->action_is_for_default_entry)
+ action_is_for_default_entry = params->action_is_for_default_entry[i];
+ CHECK(action_is_for_table_entries || action_is_for_default_entry, EINVAL);
}
CHECK_NAME(params->default_action_name, EINVAL);
params->default_action_name))
break;
CHECK(i < params->n_actions, EINVAL);
+ CHECK(!params->action_is_for_default_entry || params->action_is_for_default_entry[i],
+ EINVAL);
+
default_action = action_find(p, params->default_action_name);
CHECK((default_action->st && params->default_action_data) ||
!params->default_action_data, EINVAL);
/* Memory allocation. */
t = calloc(1, sizeof(struct table));
- CHECK(t, ENOMEM);
+ if (!t)
+ goto nomem;
t->fields = calloc(params->n_fields, sizeof(struct match_field));
- if (!t->fields) {
- free(t);
- CHECK(0, ENOMEM);
- }
+ if (!t->fields)
+ goto nomem;
t->actions = calloc(params->n_actions, sizeof(struct action *));
- if (!t->actions) {
- free(t->fields);
- free(t);
- CHECK(0, ENOMEM);
- }
+ if (!t->actions)
+ goto nomem;
if (action_data_size_max) {
t->default_action_data = calloc(1, action_data_size_max);
- if (!t->default_action_data) {
- free(t->actions);
- free(t->fields);
- free(t);
- CHECK(0, ENOMEM);
- }
+ if (!t->default_action_data)
+ goto nomem;
}
+ t->action_is_for_table_entries = calloc(params->n_actions, sizeof(int));
+ if (!t->action_is_for_table_entries)
+ goto nomem;
+
+ t->action_is_for_default_entry = calloc(params->n_actions, sizeof(int));
+ if (!t->action_is_for_default_entry)
+ goto nomem;
+
/* Node initialization. */
strcpy(t->name, name);
if (args && args[0])
t->n_fields = params->n_fields;
t->header = header;
- for (i = 0; i < params->n_actions; i++)
+ for (i = 0; i < params->n_actions; i++) {
+ int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
+
+ if (params->action_is_for_table_entries)
+ action_is_for_table_entries = params->action_is_for_table_entries[i];
+ if (params->action_is_for_default_entry)
+ action_is_for_default_entry = params->action_is_for_default_entry[i];
+
t->actions[i] = action_find(p, params->action_names[i]);
+ t->action_is_for_table_entries[i] = action_is_for_table_entries;
+ t->action_is_for_default_entry[i] = action_is_for_default_entry;
+ }
t->default_action = default_action;
if (default_action->st)
memcpy(t->default_action_data,
p->n_tables++;
return 0;
+
+nomem:
+ if (!t)
+ return -ENOMEM;
+
+ free(t->action_is_for_default_entry);
+ free(t->action_is_for_table_entries);
+ free(t->default_action_data);
+ free(t->actions);
+ free(t->fields);
+ free(t);
+
+ return -ENOMEM;
}
static struct rte_swx_table_params *
/* Action checks. */
CHECK(params->n_actions, EINVAL);
-
CHECK(params->action_names, EINVAL);
for (i = 0; i < params->n_actions; i++) {
const char *action_name = params->action_names[i];
- const char *action_field_name = params->action_field_names[i];
struct action *a;
uint32_t action_data_size;
+ int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
CHECK_NAME(action_name, EINVAL);
a = action_find(p, action_name);
CHECK(a, EINVAL);
- status = learner_action_args_check(p, a, action_field_name);
- if (status)
- return status;
-
status = learner_action_learning_check(p,
a,
params->action_names,
action_data_size = a->st ? a->st->n_bits / 8 : 0;
if (action_data_size > action_data_size_max)
action_data_size_max = action_data_size;
+
+ if (params->action_is_for_table_entries)
+ action_is_for_table_entries = params->action_is_for_table_entries[i];
+ if (params->action_is_for_default_entry)
+ action_is_for_default_entry = params->action_is_for_default_entry[i];
+ CHECK(action_is_for_table_entries || action_is_for_default_entry, EINVAL);
}
CHECK_NAME(params->default_action_name, EINVAL);
params->default_action_name))
break;
CHECK(i < params->n_actions, EINVAL);
+ CHECK(!params->action_is_for_default_entry || params->action_is_for_default_entry[i],
+ EINVAL);
default_action = action_find(p, params->default_action_name);
CHECK((default_action->st && params->default_action_data) ||
if (!l->actions)
goto nomem;
- l->action_arg = calloc(params->n_actions, sizeof(struct field *));
- if (!l->action_arg)
- goto nomem;
-
if (action_data_size_max) {
l->default_action_data = calloc(1, action_data_size_max);
if (!l->default_action_data)
goto nomem;
}
+ l->action_is_for_table_entries = calloc(params->n_actions, sizeof(int));
+ if (!l->action_is_for_table_entries)
+ goto nomem;
+
+ l->action_is_for_default_entry = calloc(params->n_actions, sizeof(int));
+ if (!l->action_is_for_default_entry)
+ goto nomem;
+
/* Node initialization. */
strcpy(l->name, name);
l->header = header;
for (i = 0; i < params->n_actions; i++) {
- const char *mf_name = params->action_field_names[i];
+ int action_is_for_table_entries = 1, action_is_for_default_entry = 1;
- l->actions[i] = action_find(p, params->action_names[i]);
+ if (params->action_is_for_table_entries)
+ action_is_for_table_entries = params->action_is_for_table_entries[i];
+ if (params->action_is_for_default_entry)
+ action_is_for_default_entry = params->action_is_for_default_entry[i];
- l->action_arg[i] = mf_name ? metadata_field_parse(p, mf_name) : NULL;
+ l->actions[i] = action_find(p, params->action_names[i]);
+ l->action_is_for_table_entries[i] = action_is_for_table_entries;
+ l->action_is_for_default_entry[i] = action_is_for_default_entry;
}
l->default_action = default_action;
if (!l)
return -ENOMEM;
- free(l->action_arg);
+ free(l->action_is_for_default_entry);
+ free(l->action_is_for_table_entries);
+ free(l->default_action_data);
free(l->actions);
free(l->fields);
free(l);
struct learner_runtime *r = &t->learners[j];
free(r->mailbox);
- free(r->action_data);
}
free(t->learners);
TAILQ_FOREACH(l, &p->learners, node) {
struct learner_runtime *r = &t->learners[l->id];
uint64_t size;
- uint32_t j;
/* r->mailbox. */
size = rte_swx_table_learner_mailbox_size_get();
r->key = l->header ?
&t->structs[l->header->struct_id] :
&t->structs[p->metadata_struct_id];
-
- /* r->action_data. */
- r->action_data = calloc(p->n_actions, sizeof(uint8_t *));
- if (!r->action_data) {
- status = -ENOMEM;
- goto error;
- }
-
- for (j = 0; j < l->n_actions; j++) {
- struct action *a = l->actions[j];
- struct field *mf = l->action_arg[j];
- uint8_t *m = t->structs[p->metadata_struct_id];
-
- r->action_data[a->id] = mf ? &m[mf->offset / 8] : NULL;
- }
}
}
TAILQ_REMOVE(&p->learners, l, node);
free(l->fields);
free(l->actions);
- free(l->action_arg);
free(l->default_action_data);
free(l);
}
void
rte_swx_pipeline_free(struct rte_swx_pipeline *p)
{
+ void *lib;
+
if (!p)
return;
+ lib = p->lib;
+
free(p->instruction_data);
free(p->instructions);
struct_free(p);
free(p);
+
+ if (lib)
+ dlclose(lib);
}
int
table_action->action_id = t->actions[table_action_id]->id;
+ table_action->action_is_for_table_entries = t->action_is_for_table_entries[table_action_id];
+ table_action->action_is_for_default_entry = t->action_is_for_default_entry[table_action_id];
+
return 0;
}
learner_action->action_id = l->actions[learner_action_id]->id;
+ learner_action->action_is_for_table_entries =
+ l->action_is_for_table_entries[learner_action_id];
+
+ learner_action->action_is_for_default_entry =
+ l->action_is_for_default_entry[learner_action_id];
+
return 0;
}
}
}
+static uint32_t
+instruction_group_list_custom_instructions_count(struct instruction_group_list *igl)
+{
+ struct instruction_group *g;
+ uint32_t n_custom_instr = 0;
+
+ /* Groups with a single instruction: no function is generated for this group, the group
+ * keeps its current instruction. Groups with more than two instructions: one function and
+ * the associated custom instruction get generated for each such group.
+ */
+ TAILQ_FOREACH(g, igl, node) {
+ if (g->first_instr_id == g->last_instr_id)
+ continue;
+
+ n_custom_instr++;
+ }
+
+ return n_custom_instr;
+}
+
static int
pipeline_codegen(struct rte_swx_pipeline *p, struct instruction_group_list *igl)
{
return 0;
}
+#ifndef RTE_SWX_PIPELINE_CMD_MAX_SIZE
+#define RTE_SWX_PIPELINE_CMD_MAX_SIZE 4096
+#endif
+
+static int
+pipeline_libload(struct rte_swx_pipeline *p, struct instruction_group_list *igl)
+{
+ struct action *a;
+ struct instruction_group *g;
+ char *dir_in, *buffer = NULL;
+ const char *dir_out;
+ int status = 0;
+
+ /* Get the environment variables. */
+ dir_in = getenv("RTE_INSTALL_DIR");
+ if (!dir_in) {
+ status = -EINVAL;
+ goto free;
+ }
+
+ dir_out = "/tmp";
+
+ /* Memory allocation for the command buffer. */
+ buffer = malloc(RTE_SWX_PIPELINE_CMD_MAX_SIZE);
+ if (!buffer) {
+ status = -ENOMEM;
+ goto free;
+ }
+
+ snprintf(buffer,
+ RTE_SWX_PIPELINE_CMD_MAX_SIZE,
+ "gcc -c -O3 -fpic -Wno-deprecated-declarations -o %s/pipeline.o %s/pipeline.c "
+ "-I %s/lib/pipeline "
+ "-I %s/lib/eal/include "
+ "-I %s/lib/eal/x86/include "
+ "-I %s/lib/eal/include/generic "
+ "-I %s/lib/meter "
+ "-I %s/lib/port "
+ "-I %s/lib/table "
+ "-I %s/lib/pipeline "
+ "-I %s/config "
+ "-I %s/build "
+ "-I %s/lib/eal/linux/include "
+ ">%s/pipeline.log 2>&1 "
+ "&& "
+ "gcc -shared %s/pipeline.o -o %s/libpipeline.so "
+ ">>%s/pipeline.log 2>&1",
+ dir_out,
+ dir_out,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_in,
+ dir_out,
+ dir_out,
+ dir_out,
+ dir_out);
+
+ /* Build the shared object library. */
+ status = system(buffer);
+ if (status)
+ goto free;
+
+ /* Open library. */
+ snprintf(buffer,
+ RTE_SWX_PIPELINE_CMD_MAX_SIZE,
+ "%s/libpipeline.so",
+ dir_out);
+
+ p->lib = dlopen(buffer, RTLD_LAZY);
+ if (!p->lib) {
+ status = -EIO;
+ goto free;
+ }
+
+ /* Get the action function symbols. */
+ TAILQ_FOREACH(a, &p->actions, node) {
+ snprintf(buffer, RTE_SWX_PIPELINE_CMD_MAX_SIZE, "action_%s_run", a->name);
+
+ p->action_funcs[a->id] = dlsym(p->lib, buffer);
+ if (!p->action_funcs[a->id]) {
+ status = -EINVAL;
+ goto free;
+ }
+ }
+
+ /* Get the pipeline function symbols. */
+ TAILQ_FOREACH(g, igl, node) {
+ if (g->first_instr_id == g->last_instr_id)
+ continue;
+
+ snprintf(buffer, RTE_SWX_PIPELINE_CMD_MAX_SIZE, "pipeline_func_%u", g->group_id);
+
+ g->func = dlsym(p->lib, buffer);
+ if (!g->func) {
+ status = -EINVAL;
+ goto free;
+ }
+ }
+
+free:
+ if (status && p->lib) {
+ dlclose(p->lib);
+ p->lib = NULL;
+ }
+
+ free(buffer);
+
+ return status;
+}
+
+static int
+pipeline_adjust_check(struct rte_swx_pipeline *p __rte_unused,
+ struct instruction_group_list *igl)
+{
+ uint32_t n_custom_instr = instruction_group_list_custom_instructions_count(igl);
+
+ /* Check that enough space is available within the pipeline instruction table to store all
+ * the custom instructions.
+ */
+ if (INSTR_CUSTOM_0 + n_custom_instr > RTE_SWX_PIPELINE_INSTRUCTION_TABLE_SIZE_MAX)
+ return -ENOSPC;
+
+ return 0;
+}
+
+static void
+pipeline_adjust(struct rte_swx_pipeline *p, struct instruction_group_list *igl)
+{
+ struct instruction_group *g;
+ uint32_t i;
+
+ /* Pipeline table instructions. */
+ for (i = 0; i < p->n_instructions; i++) {
+ struct instruction *instr = &p->instructions[i];
+
+ if (instr->type == INSTR_TABLE)
+ instr->type = INSTR_TABLE_AF;
+
+ if (instr->type == INSTR_LEARNER)
+ instr->type = INSTR_LEARNER_AF;
+ }
+
+ /* Pipeline custom instructions. */
+ i = 0;
+ TAILQ_FOREACH(g, igl, node) {
+ struct instruction *instr = &p->instructions[g->first_instr_id];
+ uint32_t j;
+
+ if (g->first_instr_id == g->last_instr_id)
+ continue;
+
+ /* Install a new custom instruction. */
+ p->instruction_table[INSTR_CUSTOM_0 + i] = g->func;
+
+ /* First instruction of the group: change its type to the new custom instruction. */
+ instr->type = INSTR_CUSTOM_0 + i;
+
+ /* All the subsequent instructions of the group: invalidate. */
+ for (j = g->first_instr_id + 1; j <= g->last_instr_id; j++) {
+ struct instruction_data *data = &p->instruction_data[j];
+
+ data->invalid = 1;
+ }
+
+ i++;
+ }
+
+ /* Remove the invalidated instructions. */
+ p->n_instructions = instr_compact(p->instructions, p->instruction_data, p->n_instructions);
+
+ /* Resolve the jump destination for any "standalone" jump instructions (i.e. those jump
+ * instructions that are the only instruction within their group, so they were left
+ * unmodified).
+ */
+ instr_jmp_resolve(p->instructions, p->instruction_data, p->n_instructions);
+}
+
static int
pipeline_compile(struct rte_swx_pipeline *p)
{
if (status)
goto free;
+ /* Build and load the shared object library. */
+ status = pipeline_libload(p, igl);
+ if (status)
+ goto free;
+
+ /* Adjust instructions. */
+ status = pipeline_adjust_check(p, igl);
+ if (status)
+ goto free;
+
+ pipeline_adjust(p, igl);
+
free:
instruction_group_list_free(igl);
git.droids-corp.org / dpdk.git / blobdiff