From: Wenjing Qiao <wenjing.q...@intel.com>
A JSON file will be used to direct DPDK CPF PMD to
parse rte_flow tokens into low level hardware resources
defined in a DDP package file.
Signed-off-by: Wenjing Qiao <wenjing.q...@intel.com>
---
drivers/net/cpfl/cpfl_flow_parser.c | 1769 +++++++++++++++++++++++++++
drivers/net/cpfl/cpfl_flow_parser.h | 220 ++++
drivers/net/cpfl/meson.build | 3 +
3 files changed, 1992 insertions(+)
create mode 100644 drivers/net/cpfl/cpfl_flow_parser.c
create mode 100644 drivers/net/cpfl/cpfl_flow_parser.h
diff --git a/drivers/net/cpfl/cpfl_flow_parser.c
b/drivers/net/cpfl/cpfl_flow_parser.c
new file mode 100644
index 0000000000..f14ceefed6
--- /dev/null
+++ b/drivers/net/cpfl/cpfl_flow_parser.c
@@ -0,0 +1,1769 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Intel Corporation
+ */
+
+#include <arpa/inet.h>
+#include <asm-generic/errno-base.h>
+#include <stdint.h>
+
+#include "cpfl_flow_parser.h"
+#include "cpfl_ethdev.h"
+#include "rte_malloc.h"
+
+static enum rte_flow_item_type
+cpfl_get_item_type_by_str(const char *type)
+{
+ if (strcmp(type, "eth") == 0)
+ return RTE_FLOW_ITEM_TYPE_ETH;
+ else if (strcmp(type, "ipv4") == 0)
+ return RTE_FLOW_ITEM_TYPE_IPV4;
+ else if (strcmp(type, "tcp") == 0)
+ return RTE_FLOW_ITEM_TYPE_TCP;
+ else if (strcmp(type, "udp") == 0)
+ return RTE_FLOW_ITEM_TYPE_UDP;
+ else if (strcmp(type, "vxlan") == 0)
+ return RTE_FLOW_ITEM_TYPE_VXLAN;
+ else if (strcmp(type, "icmp") == 0)
+ return RTE_FLOW_ITEM_TYPE_ICMP;
+ else if (strcmp(type, "vlan") == 0)
+ return RTE_FLOW_ITEM_TYPE_VLAN;
+
+ PMD_DRV_LOG(ERR, "Not support this type: %s.", type);
+ return RTE_FLOW_ITEM_TYPE_VOID;
+}
+
+static enum rte_flow_action_type
+cpfl_get_action_type_by_str(const char *type)
+{
+ if (strcmp(type, "vxlan_encap") == 0)
+ return RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP;
+ else if (strcmp(type, "vxlan_decap") == 0)
+ return RTE_FLOW_ACTION_TYPE_VXLAN_DECAP;
+
+ PMD_DRV_LOG(ERR, "Not support this type: %s.", type);
+ return RTE_FLOW_ACTION_TYPE_VOID;
+}
+
+static const char *
+cpfl_json_object_to_string(json_object *object, const char *name)
+{
+ json_object *subobject;
+
+ if (!object) {
+ PMD_DRV_LOG(ERR, "object doesn't exist.");
+ return NULL;
+ }
+ subobject = json_object_object_get(object, name);
+ if (!subobject) {
+ PMD_DRV_LOG(ERR, "%s doesn't exist.", name);
+ return NULL;
+ }
+
+ return json_object_get_string(subobject);
+}
+
+static int
+cpfl_json_object_to_int(json_object *object, const char *name, int *value)
+{
+ json_object *subobject;
+
+ if (!object) {
+ PMD_DRV_LOG(ERR, "object doesn't exist.");
+ return -EINVAL;
+ }
+ subobject = json_object_object_get(object, name);
+ if (!subobject) {
+ PMD_DRV_LOG(ERR, "%s doesn't exist.", name);
+ return -EINVAL;
+ }
+ *value = json_object_get_int(subobject);
+
+ return 0;
+}
+
+static int
+cpfl_json_object_to_uint16(json_object *object, const char *name, uint16_t
*value)
+{
+ json_object *subobject;
+
+ if (!object) {
+ PMD_DRV_LOG(ERR, "object doesn't exist.");
+ return -EINVAL;
+ }
+ subobject = json_object_object_get(object, name);
+ if (!subobject) {
+ PMD_DRV_LOG(ERR, "%s doesn't exist.", name);
+ return -EINVAL;
+ }
+ *value = json_object_get_int(subobject);
+
+ return 0;
+}
+
+static int
+cpfl_json_object_to_uint32(json_object *object, const char *name, uint32_t
*value)
+{
+ json_object *subobject;
+
+ if (!object) {
+ PMD_DRV_LOG(ERR, "object doesn't exist.");
+ return -EINVAL;
+ }
+ subobject = json_object_object_get(object, name);
+ if (!subobject) {
+ PMD_DRV_LOG(ERR, "%s doesn't exist.", name);
+ return -EINVAL;
+ }
+ *value = json_object_get_int64(subobject);
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_key_attr(json_object *cjson_pr_key_attr, struct
cpfl_flow_js_pr *js_pr)
+{
+ int i, len;
+ struct cpfl_flow_js_pr_key_attr *attr;
+
+ len = json_object_array_length(cjson_pr_key_attr);
+ js_pr->key.attributes = rte_malloc(NULL, sizeof(struct
cpfl_flow_js_pr_key_attr), 0);
+ if (!js_pr->key.attributes) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ js_pr->key.attr_size = len;
+ attr = js_pr->key.attributes;
+ for (i = 0; i < len; i++) {
+ json_object *object;
+ const char *name;
+ uint16_t value = 0;
+ int ret;
+
+ object = json_object_array_get_idx(cjson_pr_key_attr, i);
+ name = cpfl_json_object_to_string(object, "Name");
+ if (!name) {
+ rte_free(js_pr->key.attributes);
+ PMD_DRV_LOG(ERR, "Can not parse string 'Name'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(object, "Value", &value);
+ if (ret < 0) {
+ rte_free(js_pr->key.attributes);
+ PMD_DRV_LOG(ERR, "Can not parse 'value'.");
+ return -EINVAL;
+ }
+ if (strcmp(name, "ingress") == 0) {
+ attr->ingress = value;
+ } else if (strcmp(name, "egress") == 0) {
+ attr->egress = value;
+ } else {
+ /* TODO: more... */
+ rte_free(js_pr->key.attributes);
+ PMD_DRV_LOG(ERR, "Not support attr name: %s.", name);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_key_proto_field(json_object *cjson_field,
+ struct cpfl_flow_js_pr_key_proto *js_field)
+{
+ int len, i;
+
+ if (!cjson_field)
+ return 0;
+ len = json_object_array_length(cjson_field);
+ js_field->fields_size = len;
+ if (len == 0)
+ return 0;
+ js_field->fields =
+ rte_malloc(NULL, sizeof(struct cpfl_flow_js_pr_key_proto_field) *
len, 0);
+ if (!js_field->fields) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ for (i = 0; i < len; i++) {
+ json_object *object;
+ const char *name, *mask;
+
+ object = json_object_array_get_idx(cjson_field, i);
+ name = cpfl_json_object_to_string(object, "name");
+ if (!name) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'name'.");
+ goto err;
+ }
+ if (strlen(name) > CPFL_FLOW_JSON_STR_SIZE_MAX) {
+ PMD_DRV_LOG(ERR, "The 'name' is too long.");
+ goto err;
+ }
+ memcpy(js_field->fields[i].name, name, strlen(name));
+
+ if (js_field->type == RTE_FLOW_ITEM_TYPE_ETH ||
+ js_field->type == RTE_FLOW_ITEM_TYPE_IPV4) {
+ mask = cpfl_json_object_to_string(object, "mask");
+ if (!mask) {
+ PMD_DRV_LOG(ERR, "Can not parse string
'mask'.");
+ goto err;
+ }
+ memcpy(js_field->fields[i].mask, mask, strlen(mask));
+ } else {
+ uint32_t mask_32b;
+ int ret;
+
+ ret = cpfl_json_object_to_uint32(object, "mask",
&mask_32b);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse uint32
'mask'.");
+ goto err;
+ }
+ js_field->fields[i].mask_32b = mask_32b;
+ }
+ }
+
+ return 0;
+
+err:
+ rte_free(js_field->fields);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_pattern_key_proto(json_object *cjson_pr_key_proto, struct
cpfl_flow_js_pr *js_pr)
+{
+ int len, i, ret;
+
+ len = json_object_array_length(cjson_pr_key_proto);
+ js_pr->key.proto_size = len;
+ js_pr->key.protocols = rte_malloc(NULL, sizeof(struct
cpfl_flow_js_pr_key_proto) * len, 0);
+ if (!js_pr->key.protocols) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < len; i++) {
+ json_object *object, *cjson_pr_key_proto_fields;
+ const char *type;
+ enum rte_flow_item_type item_type;
+
+ object = json_object_array_get_idx(cjson_pr_key_proto, i);
+ /* pr->key->proto->type */
+ type = cpfl_json_object_to_string(object, "type");
+ if (!type) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'type'.");
+ goto err;
+ }
+ item_type = cpfl_get_item_type_by_str(type);
+ if (item_type == RTE_FLOW_ITEM_TYPE_VOID)
+ goto err;
+ js_pr->key.protocols[i].type = item_type;
+ /* pr->key->proto->fields */
+ cjson_pr_key_proto_fields = json_object_object_get(object,
"fields");
+ ret =
cpfl_flow_js_pattern_key_proto_field(cjson_pr_key_proto_fields,
+
&js_pr->key.protocols[i]);
+ if (ret < 0)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ rte_free(js_pr->key.protocols);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_pattern_act_fv_proto(json_object *cjson_value, struct
cpfl_flow_js_fv *js_fv)
+{
+ uint16_t layer = 0, offset = 0, mask = 0;
+ const char *header;
+ enum rte_flow_item_type type;
+ int ret;
+
+ ret = cpfl_json_object_to_uint16(cjson_value, "layer", &layer);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'value'.");
+ return -EINVAL;
+ }
+
+ header = cpfl_json_object_to_string(cjson_value, "header");
+ if (!header) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'header'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(cjson_value, "offset", &offset);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'offset'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(cjson_value, "mask", &mask);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'mask'.");
+ return -EINVAL;
+ }
+ js_fv->proto.layer = layer;
+ js_fv->proto.offset = offset;
+ js_fv->proto.mask = mask;
+ type = cpfl_get_item_type_by_str(header);
+ if (type == RTE_FLOW_ITEM_TYPE_VOID)
+ return -EINVAL;
+ js_fv->proto.header = type;
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_act_fv(json_object *cjson_fv, struct
cpfl_flow_js_pr_action *js_act)
+{
+ int len, i;
+
+ len = json_object_array_length(cjson_fv);
+ js_act->sem.fv = rte_malloc(NULL, sizeof(struct cpfl_flow_js_fv) * len,
0);
+ if (!js_act->sem.fv) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ js_act->sem.fv_size = len;
+ for (i = 0; i < len; i++) {
+ struct cpfl_flow_js_fv *js_fv;
+ json_object *object, *cjson_value;
+ uint16_t offset = 0;
+ const char *type;
+ int ret;
+
+ object = json_object_array_get_idx(cjson_fv, i);
+ js_fv = &js_act->sem.fv[i];
+ ret = cpfl_json_object_to_uint16(object, "offset", &offset);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'offset'.");
+ goto err;
+ }
+ js_fv->offset = offset;
+ type = cpfl_json_object_to_string(object, "type");
+ if (!type) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'type'.");
+ goto err;
+ }
+ cjson_value = json_object_object_get(object, "value");
+ if (strcmp(type, "immediate") == 0) {
+ js_fv->type = CPFL_FV_TYPE_IMMEDIATE;
+ js_fv->immediate = json_object_get_int(cjson_value);
+ } else if (strcmp(type, "protocol") == 0) {
+ js_fv->type = CPFL_FV_TYPE_PROTOCOL;
+ cpfl_flow_js_pattern_act_fv_proto(cjson_value, js_fv);
+ } else {
+ PMD_DRV_LOG(ERR, "Not support this type: %s.", type);
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ rte_free(js_act->sem.fv);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_pattern_per_act(json_object *cjson_per_act, struct
cpfl_flow_js_pr_action *js_act)
+{
+ const char *type;
+ int ret;
+
+ /* pr->actions->type */
+ type = cpfl_json_object_to_string(cjson_per_act, "type");
+ if (!type) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'type'.");
+ return -EINVAL;
+ }
+ /* pr->actions->data */
+ if (strcmp(type, "sem") == 0) {
+ json_object *cjson_fv, *cjson_pr_action_sem;
+
+ js_act->type = CPFL_JS_PR_ACTION_TYPE_SEM;
+ cjson_pr_action_sem = json_object_object_get(cjson_per_act,
"data");
+ ret = cpfl_json_object_to_uint16(cjson_pr_action_sem, "profile",
+ &js_act->sem.prof);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'profile'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(cjson_pr_action_sem,
"subprofile",
+ &js_act->sem.subprof);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'subprofile'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(cjson_pr_action_sem, "keysize",
+ &js_act->sem.keysize);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'keysize'.");
+ return -EINVAL;
+ }
+ cjson_fv = json_object_object_get(cjson_pr_action_sem,
"fieldvectors");
+ ret = cpfl_flow_js_pattern_act_fv(cjson_fv, js_act);
+ if (ret < 0)
+ return ret;
+ } else {
+ PMD_DRV_LOG(ERR, "Not support this type: %s.", type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_act(json_object *cjson_pr_act, struct cpfl_flow_js_pr
*js_pr)
+{
+ int i, len, ret;
+
+ len = json_object_array_length(cjson_pr_act);
+ js_pr->actions = rte_malloc(NULL, sizeof(struct cpfl_flow_js_pr_action)
* len, 0);
+ if (!js_pr->actions) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ js_pr->actions_size = len;
+ for (i = 0; i < len; i++) {
+ struct cpfl_flow_js_pr_action *js_act;
+ json_object *object;
+
+ object = json_object_array_get_idx(cjson_pr_act, i);
+ js_act = &js_pr->actions[i];
+ ret = cpfl_flow_js_pattern_per_act(object, js_act);
+ if (ret < 0) {
+ rte_free(js_pr->actions);
+ PMD_DRV_LOG(ERR, "Can not parse pattern action.");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_rule(json_object *json_root, struct cpfl_flow_js_parser
*parser)
+{
+ json_object *cjson_pr;
+ int i, len;
+
+ /* Pattern Rules */
+ cjson_pr = json_object_object_get(json_root, "patterns");
+ if (!cjson_pr) {
+ PMD_DRV_LOG(ERR, "The patterns is mandatory.");
+ return -EINVAL;
+ }
+
+ len = json_object_array_length(cjson_pr);
+ parser->patterns = rte_malloc(NULL, sizeof(struct cpfl_flow_js_pr) *
len, 0);
+ if (!parser->patterns) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ parser->pr_size = len;
+ for (i = 0; i < len; i++) {
+ json_object *object, *cjson_pr_actions, *cjson_pr_key,
*cjson_pr_key_proto,
+ *cjson_pr_key_attr;
+ int ret;
+
+ object = json_object_array_get_idx(cjson_pr, i);
+ /* pr->key */
+ cjson_pr_key = json_object_object_get(object, "key");
+ /* pr->key->protocols */
+ cjson_pr_key_proto = json_object_object_get(cjson_pr_key,
"protocols");
+ ret = cpfl_flow_js_pattern_key_proto(cjson_pr_key_proto,
&parser->patterns[i]);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse key->protocols.");
+ goto err;
+ }
+ /* pr->key->attributes */
+ cjson_pr_key_attr = json_object_object_get(cjson_pr_key,
"attributes");
+ ret = cpfl_flow_js_pattern_key_attr(cjson_pr_key_attr,
&parser->patterns[i]);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse key->attributes.");
+ goto err;
+ }
+ /* pr->actions */
+ cjson_pr_actions = json_object_object_get(object, "actions");
+ ret = cpfl_flow_js_pattern_act(cjson_pr_actions,
&parser->patterns[i]);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse pattern action.");
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ rte_free(parser->patterns);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_mr_key(json_object *cjson_mr_key, struct cpfl_flow_js_mr_key
*js_mr_key)
+{
+ int len, i;
+
+ len = json_object_array_length(cjson_mr_key);
+ js_mr_key->actions = rte_malloc(NULL, sizeof(struct
cpfl_flow_js_mr_key_action) * len, 0);
+ if (!js_mr_key->actions) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ js_mr_key->actions_size = len;
+ for (i = 0; i < len; i++) {
+ json_object *object, *cjson_mr_key_data;
+ const char *type;
+ enum rte_flow_action_type act_type;
+
+ object = json_object_array_get_idx(cjson_mr_key, i);
+ /* mr->key->actions->type */
+ type = cpfl_json_object_to_string(object, "type");
+ if (!type) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'type'.");
+ goto err;
+ }
+ act_type = cpfl_get_action_type_by_str(type);
+ if (act_type == RTE_FLOW_ACTION_TYPE_VOID)
+ goto err;
+ js_mr_key->actions[i].type = act_type;
+ /* mr->key->actions->data */
+ cjson_mr_key_data = json_object_object_get(object, "data");
+ if (js_mr_key->actions[i].type ==
RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP) {
+ json_object *cjson_mr_key_proto;
+ int proto_size, j;
+ struct cpfl_flow_js_mr_key_action_vxlan_encap *encap;
+
+ cjson_mr_key_proto =
json_object_object_get(cjson_mr_key_data, "protocols");
+ encap = &js_mr_key->actions[i].encap;
+ if (!cjson_mr_key_proto) {
+ encap->proto_size = 0;
+ continue;
+ }
+ proto_size =
json_object_array_length(cjson_mr_key_proto);
+ encap->proto_size = proto_size;
+ for (j = 0; j < proto_size; j++) {
+ const char *s;
+ json_object *subobject;
+ enum rte_flow_item_type proto_type;
+
+ subobject =
json_object_array_get_idx(cjson_mr_key_proto, j);
+ s = json_object_get_string(subobject);
+ proto_type = cpfl_get_item_type_by_str(s);
+ if (proto_type == RTE_FLOW_ITEM_TYPE_VOID) {
+ PMD_DRV_LOG(ERR, "parse VXLAN_ENCAP
failed.");
+ goto err;
+ }
+ encap->protocols[j] = proto_type;
+ }
+ } else if (js_mr_key->actions[i].type !=
RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
+ PMD_DRV_LOG(ERR, "not support this type: %d.",
js_mr_key->actions[i].type);
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ rte_free(js_mr_key->actions);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_mr_layout(json_object *cjson_layout, struct
cpfl_flow_js_mr_action_mod *js_mod)
+{
+ int len, i;
+
+ len = json_object_array_length(cjson_layout);
+ js_mod->layout_size = len;
+ if (len == 0)
+ return 0;
+ js_mod->layout = rte_malloc(NULL, sizeof(struct cpfl_flow_js_mr_layout)
* len, 0);
+ if (!js_mod->layout) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < len; i++) {
+ json_object *object;
+ int index = 0, size = 0, offset = 0, ret;
+ const char *hint;
+
+ object = json_object_array_get_idx(cjson_layout, i);
+ ret = cpfl_json_object_to_int(object, "index", &index);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'index'.");
+ goto err;
+ }
+ js_mod->layout[i].index = index;
+ ret = cpfl_json_object_to_int(object, "size", &size);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'size'.");
+ goto err;
+ }
+ js_mod->layout[i].size = size;
+ ret = cpfl_json_object_to_int(object, "offset", &offset);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'offset'.");
+ goto err;
+ }
+ js_mod->layout[i].offset = offset;
+ hint = cpfl_json_object_to_string(object, "hint");
+ if (!hint) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'hint'.");
+ goto err;
+ }
+ memcpy(js_mod->layout[i].hint, hint, strlen(hint));
+ }
+
+ return 0;
+
+err:
+ rte_free(js_mod->layout);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_mr_action(json_object *cjson_mr_act, struct
cpfl_flow_js_mr_action *js_mr_act)
+{
+ json_object *cjson_mr_action_data;
+ const char *type;
+
+ /* mr->action->type */
+ type = cpfl_json_object_to_string(cjson_mr_act, "type");
+ if (!type) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'type'.");
+ return -EINVAL;
+ }
+ /* mr->action->data */
+ cjson_mr_action_data = json_object_object_get(cjson_mr_act, "data");
+ if (strcmp(type, "mod") == 0) {
+ json_object *layout;
+ uint16_t profile = 0;
+ int ret;
+
+ js_mr_act->type = CPFL_JS_MR_ACTION_TYPE_MOD;
+ ret = cpfl_json_object_to_uint16(cjson_mr_action_data,
"profile", &profile);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'profile'.");
+ return -EINVAL;
+ }
+ js_mr_act->mod.prof = profile;
+ layout = json_object_object_get(cjson_mr_action_data, "layout");
+ ret = cpfl_flow_js_mr_layout(layout, &js_mr_act->mod);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse layout.");
+ return ret;
+ }
+ } else {
+ PMD_DRV_LOG(ERR, "not support this type: %s.", type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_mod_rule(json_object *json_root, struct cpfl_flow_js_parser
*parser)
+{
+ json_object *cjson_mr;
+ int i, len;
+
+ cjson_mr = json_object_object_get(json_root, "modifications");
+ if (!cjson_mr) {
+ PMD_DRV_LOG(INFO, "The modifications is optional.");
+ return 0;
+ }
+ len = json_object_array_length(cjson_mr);
+ parser->mr_size = len;
+ if (len == 0)
+ return 0;
+ parser->modifications = rte_malloc(NULL, sizeof(struct cpfl_flow_js_mr)
* len, 0);
+ if (!parser->modifications) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+ for (i = 0; i < len; i++) {
+ int ret;
+ json_object *object, *cjson_mr_key, *cjson_mr_action,
*cjson_mr_key_action;
+
+ object = json_object_array_get_idx(cjson_mr, i);
+ /* mr->key */
+ cjson_mr_key = json_object_object_get(object, "key");
+ /* mr->key->actions */
+ cjson_mr_key_action = json_object_object_get(cjson_mr_key,
"actions");
+ ret = cpfl_flow_js_mr_key(cjson_mr_key_action,
&parser->modifications[i].key);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parse mr_key failed.");
+ goto err;
+ }
+ /* mr->action */
+ cjson_mr_action = json_object_object_get(object, "action");
+ ret = cpfl_flow_js_mr_action(cjson_mr_action,
&parser->modifications[i].action);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parse mr_action failed.");
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ rte_free(parser->modifications);
+ return -EINVAL;
+}
+
+static int
+cpfl_parser_init(json_object *json_root, struct cpfl_flow_js_parser *parser)
+{
+ int ret = 0;
+
+ ret = cpfl_flow_js_pattern_rule(json_root, parser);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parse pattern_rule failed.");
+ return ret;
+ }
+ ret = cpfl_flow_js_mod_rule(json_root, parser);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parse mod_rule failed.");
+ return ret;
+ }
+
+ return 0;
+}
+
+int
+cpfl_parser_create(struct cpfl_flow_js_parser **flow_parser, const char
*filename)
+{
+ struct cpfl_flow_js_parser *parser;
+ json_object *root;
+ int ret;
+
+ parser = rte_zmalloc("flow_parser", sizeof(struct cpfl_flow_js_parser),
0);
+ if (!parser) {
+ PMD_DRV_LOG(ERR, "Not enough memory to create flow parser.");
+ return -ENOMEM;
+ }
+ root = json_object_from_file(filename);
+ if (!root) {
+ PMD_DRV_LOG(ERR, "Can not load JSON file: %s.", filename);
+ rte_free(parser);
+ return -EINVAL;
+ }
+ ret = cpfl_parser_init(root, parser);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parser init failed.");
+ goto free_parser;
+ }
+ *flow_parser = parser;
+ ret = json_object_put(root);
+ if (ret != 1) {
+ PMD_DRV_LOG(ERR, "Free json_object failed.");
+ return -EINVAL;
+ }
+
+ return 0;
+free_parser:
+ rte_free(parser);
+ return -EINVAL;
+}
+
+static void
+cpfl_parser_free_pr_action(struct cpfl_flow_js_pr_action *pr_act)
+{
+ if (pr_act->type == CPFL_JS_PR_ACTION_TYPE_SEM)
+ rte_free(pr_act->sem.fv);
+}
+
+int
+cpfl_parser_destroy(struct cpfl_flow_js_parser *parser)
+{
+ int i, j;
+
+ if (!parser)
+ return 0;
+
+ for (i = 0; i < parser->pr_size; i++) {
+ struct cpfl_flow_js_pr *pattern = &parser->patterns[i];
+
+ if (!pattern)
+ return -EINVAL;
+ for (j = 0; j < pattern->key.proto_size; j++)
+ rte_free(pattern->key.protocols[j].fields);
+ rte_free(pattern->key.protocols);
+ rte_free(pattern->key.attributes);
+
+ for (j = 0; j < pattern->actions_size; j++) {
+ struct cpfl_flow_js_pr_action *pr_act;
+
+ pr_act = &pattern->actions[j];
+ cpfl_parser_free_pr_action(pr_act);
+ }
+ rte_free(pattern->actions);
+ }
+ rte_free(parser->patterns);
+ for (i = 0; i < parser->mr_size; i++) {
+ struct cpfl_flow_js_mr *mr = &parser->modifications[i];
+
+ if (!mr)
+ return -EINVAL;
+ rte_free(mr->key.actions);
+ rte_free(mr->action.mod.layout);
+ }
+ rte_free(parser->modifications);
+ rte_free(parser);
+
+ return 0;
+}
+
+static int
+cpfl_get_items_length(const struct rte_flow_item *items)
+{
+ int length = 0;
+ const struct rte_flow_item *item = items;
+
+ while ((item + length++)->type != RTE_FLOW_ITEM_TYPE_END)
+ continue;
+ return length;
+}
+
+static int
+cpfl_get_actions_length(const struct rte_flow_action *actions)
+{
+ int length = 0;
+ const struct rte_flow_action *action = actions;
+
+ while ((action + length++)->type != RTE_FLOW_ACTION_TYPE_END)
+ continue;
+ return length;
+}
+
+static int
+cpfl_parse_fv_protocol(struct cpfl_flow_js_fv *js_fv, const struct
rte_flow_item *items,
+ uint16_t offset, uint8_t *fv)
+{
+ uint16_t v_layer, v_offset, v_mask;
+ enum rte_flow_item_type v_header;
+ int j, layer, length;
+ uint16_t temp_fv;
+
+ length = cpfl_get_items_length(items);
+ v_layer = js_fv->proto.layer;
+ v_header = js_fv->proto.header;
+ v_offset = js_fv->proto.offset;
+ v_mask = js_fv->proto.mask;
+ layer = 0;
+ for (j = 0; j < length - 1; j++) {
+ if (items[j].type == v_header) {
+ if (layer == v_layer) {
+ /* copy out 16 bits from offset */
+ const uint8_t *pointer;
+
+ pointer = &(((const uint8_t
*)(items[j].spec))[v_offset]);
+ temp_fv = ntohs((*((const uint16_t *)pointer))
& v_mask);
+ fv[2 * offset] = (uint8_t)((temp_fv & 0xff00)
>> 8);
+ fv[2 * offset + 1] = (uint8_t)(temp_fv &
0x00ff);
+ break;
+ }
+ layer++;
+ } /* TODO: more type... */
+ }
+
+ return 0;
+}
+
+static int
+cpfl_parse_fieldvectors(struct cpfl_flow_js_fv *js_fvs, int size, uint8_t *fv,
+ const struct rte_flow_item *items)
+{
+ int i, ret;
+
+ for (i = 0; i < size; i++) {
+ uint16_t offset, temp_fv, value_int;
+ enum cpfl_flow_js_fv_type type;
+ struct cpfl_flow_js_fv *js_fv;
+
+ js_fv = &js_fvs[i];
+ offset = js_fv->offset;
+ type = js_fv->type;
+ if (type == CPFL_FV_TYPE_IMMEDIATE) {
+ value_int = js_fv->immediate;
+ temp_fv = (value_int << 8) & 0xff00;
+ fv[2 * offset] = (uint8_t)((temp_fv & 0xff00) >> 8);
+ fv[2 * offset + 1] = (uint8_t)(temp_fv & 0x00ff);
+ } else if (type == CPFL_FV_TYPE_PROTOCOL) {
+ ret = cpfl_parse_fv_protocol(js_fv, items, offset, fv);
+ if (ret)
+ return ret;
+ } else {
+ PMD_DRV_LOG(DEBUG, "not support this type: %d.", type);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cpfl_parse_pr_actions(struct cpfl_flow_js_pr_action *actions,
+ int size,
+ const struct rte_flow_item *items,
+ const struct rte_flow_attr *attr,
+ struct cpfl_flow_pr_action *pr_action)
+{
+ int i, ret;
+
+ for (i = 0; i < size; i++) {
+ struct cpfl_flow_js_pr_action *pr_act;
+ enum cpfl_flow_pr_action_type type;
+
+ pr_act = &actions[i];
+ /* pr->actions->type */
+ type = pr_act->type;
+ /* pr->actions->data */
+ if (attr->group % 10 == 1 && type ==
CPFL_JS_PR_ACTION_TYPE_SEM) {
+ struct cpfl_flow_js_pr_action_sem *sem = &pr_act->sem;
+
+ pr_action->type = CPFL_JS_PR_ACTION_TYPE_SEM;
+ pr_action->sem.prof = sem->prof;
+ pr_action->sem.subprof = sem->subprof;
+ pr_action->sem.keysize = sem->keysize;
+ memset(pr_action->sem.cpfl_flow_pr_fv, 0,
+ sizeof(pr_action->sem.cpfl_flow_pr_fv));
+ ret = cpfl_parse_fieldvectors(sem->fv, sem->fv_size,
+
pr_action->sem.cpfl_flow_pr_fv, items);
+ return ret;
+ } else if (attr->group > 4 || attr->group == 0) {
+ return -EPERM;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cpfl_str2mac(const char *mask, uint8_t *addr_bytes)
+{
+ int i, size, j;
+ uint8_t n;
+
+ size = strlen(mask);
+ n = 0;
+ j = 0;
+ for (i = 0; i < size; i++) {
+ char ch = mask[i];
+
+ if (ch == ':') {
+ if (j >= RTE_ETHER_ADDR_LEN)
+ return -EINVAL;
+ addr_bytes[j++] = n;
+ n = 0;
+ } else if (ch >= 'a' && ch <= 'f') {
+ n = n * 16 + ch - 'a' + 10;
+ } else if (ch >= 'A' && ch <= 'F') {
+ n = n * 16 + ch - 'A' + 10;
+ } else if (ch >= '0' && ch <= '9') {
+ n = n * 16 + ch - '0';
+ } else {
+ return -EINVAL;
+ }
+ }
+ if (j < RTE_ETHER_ADDR_LEN)
+ addr_bytes[j++] = n;
+
+ if (j != RTE_ETHER_ADDR_LEN)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+cpfl_check_eth_mask(const char *mask, const uint8_t
addr_bytes[RTE_ETHER_ADDR_LEN])
+{
+ int i, ret;
+ uint8_t mask_bytes[RTE_ETHER_ADDR_LEN] = { 0 };
+
+ ret = cpfl_str2mac(mask, mask_bytes);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "translate mac address from string to
uint8_t[] failed.");
+ return -EINVAL;
+ }
+ /* validate eth mask addr if match */
+ for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
+ if (mask_bytes[i] != addr_bytes[i])
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_ipv4_mask(const char *mask, rte_be32_t addr)
+{
+ uint32_t out_addr;
+
+ /* 0: success; -EINVAL: invalid; -ENOTSUP: fail */
+ int ret = inet_pton(AF_INET, mask, &out_addr);
+
+ if (ret < 0)
+ return -EINVAL;
+ /* validate ipv4 mask addr if match */
+ if (out_addr != addr)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+cpfl_check_eth(struct cpfl_flow_js_pr_key_proto *proto, const struct
rte_flow_item_eth *eth_mask)
+{
+ int field_size, j;
+ int flag_dst_addr, flag_src_addr, flag_ether_type;
+ struct cpfl_flow_js_pr_key_proto_field *field;
+
+ if (!proto)
+ return 0;
+ field_size = proto->fields_size;
+ if (field_size != 0 && !eth_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && eth_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && !eth_mask)
+ return 0;
+
+ flag_dst_addr = false;
+ flag_src_addr = false;
+ flag_ether_type = false;
+ for (j = 0; j < field_size; j++) {
+ const char *name, *s_mask;
+
+ field = &proto->fields[j];
+ /* match: rte_flow_item_eth.dst, more see Field Mapping
+ */
+ name = field->name;
+ /* match: rte_flow_item->mask */
+ if (strcmp(name, "src_addr") == 0) {
+ s_mask = field->mask;
+ if (cpfl_check_eth_mask(s_mask,
eth_mask->src.addr_bytes) < 0)
+ return -EINVAL;
+ flag_src_addr = true;
+ } else if (strcmp(name, "dst_addr") == 0) {
+ s_mask = field->mask;
+ if (cpfl_check_eth_mask(s_mask,
eth_mask->dst.addr_bytes) < 0)
+ return -EINVAL;
+ flag_dst_addr = true;
+ } else if (strcmp(name, "ether_type") == 0) {
+ uint16_t mask = (uint16_t)field->mask_32b;
+
+ if (mask != eth_mask->type)
+ return -EINVAL;
+ flag_ether_type = true;
+ } else {
+ /* TODO: more type... */
+ PMD_DRV_LOG(ERR, "not support this name.");
+ return -EINVAL;
+ }
+ }
+ if (!flag_src_addr) {
+ if (strcmp((const char *)eth_mask->src.addr_bytes,
"\x00\x00\x00\x00\x00\x00") != 0)
+ return -EINVAL;
+ }
+ if (!flag_dst_addr) {
+ if (strcmp((const char *)eth_mask->dst.addr_bytes,
"\x00\x00\x00\x00\x00\x00") != 0)
+ return -EINVAL;
+ }
+ if (!flag_ether_type) {
+ if (eth_mask->hdr.ether_type != (rte_be16_t)0)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_ipv4(struct cpfl_flow_js_pr_key_proto *proto, const struct
rte_flow_item_ipv4 *ipv4_mask)
+{
+ int field_size, j;
+ int flag_next_proto_id, flag_src_addr, flag_dst_addr;
+ struct cpfl_flow_js_pr_key_proto_field *field;
+
+ if (!proto)
+ return 0;
+
+ field_size = proto->fields_size;
+ if (field_size != 0 && !ipv4_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && ipv4_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && !ipv4_mask)
+ return 0;
+
+ flag_dst_addr = false;
+ flag_src_addr = false;
+ flag_next_proto_id = false;
+ for (j = 0; j < field_size; j++) {
+ const char *name;
+
+ field = &proto->fields[j];
+ name = field->name;
+ if (strcmp(name, "src_addr") == 0) {
+ /* match: rte_flow_item->mask */
+ const char *mask;
+
+ mask = field->mask;
+ if (cpfl_check_ipv4_mask(mask, ipv4_mask->hdr.src_addr)
< 0)
+ return -EINVAL;
+ flag_src_addr = true;
+ } else if (strcmp(name, "dst_addr") == 0) {
+ const char *mask;
+
+ mask = field->mask;
+ if (cpfl_check_ipv4_mask(mask, ipv4_mask->hdr.dst_addr)
< 0)
+ return -EINVAL;
+ flag_dst_addr = true;
+ } else if (strcmp(name, "next_proto_id") == 0) {
+ uint8_t mask;
+
+ mask = (uint8_t)field->mask_32b;
+ if (mask != ipv4_mask->hdr.next_proto_id)
+ return -EINVAL;
+ flag_next_proto_id = true;
+ } else {
+ PMD_DRV_LOG(ERR, "not support this name.");
+ return -EINVAL;
+ }
+ }
+ if (!flag_src_addr) {
+ if (ipv4_mask->hdr.src_addr != (rte_be32_t)0)
+ return -EINVAL;
+ }
+ if (!flag_dst_addr) {
+ if (ipv4_mask->hdr.dst_addr != (rte_be32_t)0)
+ return -EINVAL;
+ }
+ if (!flag_next_proto_id) {
+ if (ipv4_mask->hdr.next_proto_id != (uint8_t)0)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_tcp(struct cpfl_flow_js_pr_key_proto *proto, const struct
rte_flow_item_tcp *tcp_mask)
+{
+ int field_size, j;
+ int flag_src_port, flag_dst_port;
+ struct cpfl_flow_js_pr_key_proto_field *field;
+
+ if (!proto)
+ return 0;
+
+ field_size = proto->fields_size;
+ if (field_size != 0 && !tcp_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && tcp_mask)
+ return -EINVAL;
+
+ if (field_size == 0 && !tcp_mask)
+ return 0;
+
+ flag_src_port = false;
+ flag_dst_port = false;
+ for (j = 0; j < field_size; j++) {
+ const char *name;
+ uint16_t mask;
+
+ field = &proto->fields[j];
+ /* match: rte_flow_item_eth.dst */
+ name = field->name;
+ /* match: rte_flow_item->mask */
+ mask = (uint16_t)field->mask_32b;
+ if (strcmp(name, "src_port") == 0) {
+ if (tcp_mask->hdr.src_port != mask)
+ return -EINVAL;
+ flag_src_port = true;
+ } else if (strcmp(name, "dst_port") == 0) {
+ if (tcp_mask->hdr.dst_port != mask)
+ return -EINVAL;
+ flag_dst_port = true;
+ } else {
+ PMD_DRV_LOG(ERR, "not support this name.");
+ return -EINVAL;
+ }
+ }
+ if (!flag_src_port) {
+ if (tcp_mask->hdr.src_port != (rte_be16_t)0)
+ return -EINVAL;
+ }
+ if (!flag_dst_port) {
+ if (tcp_mask->hdr.dst_port != (rte_be16_t)0)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_udp(struct cpfl_flow_js_pr_key_proto *proto, const struct
rte_flow_item_udp *udp_mask)
+{
+ int field_size, j;
+ bool flag_src_port, flag_dst_port;
+ struct cpfl_flow_js_pr_key_proto_field *field;
+
+ if (!proto)
+ return 0;
+ field_size = proto->fields_size;
+ if (field_size != 0 && !udp_mask)
+ return -EINVAL;
+ if (field_size == 0 && udp_mask)
+ return -EINVAL;
+ if (field_size == 0 && !udp_mask)
+ return 0;
+ flag_src_port = false;
+ flag_dst_port = false;
+ for (j = 0; j < field_size; j++) {
+ const char *name;
+ uint16_t mask;
+
+ field = &proto->fields[j];
+ /* match: rte_flow_item_eth.dst */
+ name = field->name; /* match: rte_flow_item->mask */
+ mask = (uint16_t)field->mask_32b;
+ if (strcmp(name, "src_port") == 0) {
+ if (udp_mask->hdr.src_port != mask)
+ return -EINVAL;
+ flag_src_port = true;
+ } else if (strcmp(name, "dst_port") == 0) {
+ if (udp_mask->hdr.dst_port != mask)
+ return -EINVAL;
+ flag_dst_port = true;
+ } else {
+ PMD_DRV_LOG(ERR, "not support this name.");
+ return -EINVAL;
+ }
+ }
+ if (!flag_src_port) {
+ if (udp_mask->hdr.src_port != (rte_be16_t)0)
+ return -EINVAL;
+ }
+ if (!flag_dst_port) {
+ if (udp_mask->hdr.dst_port != (rte_be16_t)0)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_vxlan(struct cpfl_flow_js_pr_key_proto *proto,
+ const struct rte_flow_item_vxlan *vxlan_mask)
+{
+ int field_size, j;
+ struct cpfl_flow_js_pr_key_proto_field *field;
+
+ if (!proto)
+ return 0;
+ field_size = proto->fields_size;
+ if (field_size != 0 && !vxlan_mask)
+ return -EINVAL;
+ if (field_size == 0 && vxlan_mask)
+ return -EINVAL;
+ if (field_size == 0 && !vxlan_mask)
+ return 0;
+ for (j = 0; j < field_size; j++) {
+ const char *name;
+ int64_t mask;
+
+ field = &proto->fields[j];
+ name = field->name;
+ /* match: rte_flow_item->mask */
+ mask = (int64_t)field->mask_32b;
+ if (strcmp(name, "vx_vni") == 0) {
+ if ((int64_t)RTE_BE32(vxlan_mask->hdr.vx_vni) != mask)
+ return -EINVAL;
+ } else {
+ PMD_DRV_LOG(ERR, "not support this name.");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_icmp(struct cpfl_flow_js_pr_key_proto *proto, const struct
rte_flow_item_icmp *icmp_mask)
+{
+ int field_size;
+
+ if (!proto)
+ return 0;
+ field_size = proto->fields_size;
+ if (field_size != 0 && !icmp_mask)
+ return -EINVAL;
+ if (field_size == 0 && icmp_mask)
+ return -EINVAL;
+ if (field_size == 0 && !icmp_mask)
+ return 0;
+
+ return 0;
+}
+
+static int
+cpfl_check_pattern_key_proto(struct cpfl_flow_js_pr_key_proto *protocols,
+ int proto_size,
+ const struct rte_flow_item *items)
+{
+ int i, length;
+ int j = 0;
+
+ length = cpfl_get_items_length(items);
+ if (proto_size > length - 1)
+ return -EINVAL;
+ for (i = 0; i < proto_size; i++) {
+ struct cpfl_flow_js_pr_key_proto *key_proto;
+ enum rte_flow_item_type type;
+
+ key_proto = &protocols[i];
+ /* pr->key->proto->type */
+ type = key_proto->type;
+ /* pr->key->proto->fields */
+ switch (type) {
+ case RTE_FLOW_ITEM_TYPE_ETH:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_ETH) {
+ const struct rte_flow_item_eth *eth_mask;
+ int ret;
+
+ eth_mask = (const struct rte_flow_item_eth
*)items[i].mask;
+ ret = cpfl_check_eth(key_proto, eth_mask);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EINVAL;
+ }
+ break;
+ case RTE_FLOW_ITEM_TYPE_IPV4:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_IPV4) {
+ const struct rte_flow_item_ipv4 *ipv4_mask;
+ int ret;
+
+ ipv4_mask = (const struct rte_flow_item_ipv4
*)items[i].mask;
+ ret = cpfl_check_ipv4(key_proto, ipv4_mask);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EINVAL;
+ }
+ break;
+ case RTE_FLOW_ITEM_TYPE_TCP:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_TCP) {
+ const struct rte_flow_item_tcp *tcp_mask;
+ int ret;
+
+ tcp_mask = (const struct rte_flow_item_tcp
*)items[i].mask;
+ ret = cpfl_check_tcp(key_proto, tcp_mask);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EINVAL;
+ }
+ break;
+ case RTE_FLOW_ITEM_TYPE_UDP:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_UDP) {
+ const struct rte_flow_item_udp *udp_mask;
+ int ret;
+
+ udp_mask = (const struct rte_flow_item_udp
*)items[i].mask;
+ ret = cpfl_check_udp(key_proto, udp_mask);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EINVAL;
+ }
+ break;
+ case RTE_FLOW_ITEM_TYPE_VXLAN:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_VXLAN) {
+ const struct rte_flow_item_vxlan *vxlan_mask;
+ int ret;
+
+ vxlan_mask = (const struct rte_flow_item_vxlan
*)items[i].mask;
+ ret = cpfl_check_vxlan(key_proto, vxlan_mask);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EINVAL;
+ }
+ break;
+ case RTE_FLOW_ITEM_TYPE_ICMP:
+ if (items[j++].type == RTE_FLOW_ITEM_TYPE_ICMP) {
+ const struct rte_flow_item_icmp *icmp_mask;
+ int ret;
+
+ icmp_mask = (const struct rte_flow_item_icmp
*)items[i].mask;
+ ret = cpfl_check_icmp(key_proto, icmp_mask);
+ if (ret < 0)
+ return ret;
+
+ } else {
+ return -EINVAL;
+ }
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "Not support this type: %d.", type);
+ return -EPERM;
+ }
+ }
+ if (items[j].type != RTE_FLOW_ITEM_TYPE_END)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+cpfl_check_pattern_key_attr(struct cpfl_flow_js_pr_key_attr *key_attr,
+ const struct rte_flow_attr *attr)
+{
+ /* match: struct rte_flow_attr(ingress,egress) */
+ if (key_attr->ingress != attr->ingress) {
+ PMD_DRV_LOG(DEBUG, "ingress not match.");
+ return -EINVAL;
+ }
+ if (key_attr->egress != attr->egress) {
+ PMD_DRV_LOG(DEBUG, "egress not match.");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_check_pattern_key(struct cpfl_flow_js_pr *pattern,
+ const struct rte_flow_item *items,
+ const struct rte_flow_attr *attr)
+{
+ int ret;
+
+ /* pr->key */
+ /* pr->key->protocols */
+ ret = cpfl_check_pattern_key_proto(pattern->key.protocols,
+ pattern->key.proto_size, items);
+ if (ret < 0)
+ return -EINVAL;
+ /* pr->key->attributes */
+ ret = cpfl_check_pattern_key_attr(pattern->key.attributes, attr);
+ if (ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* output: struct cpfl_flow_pr_action* pr_action */
+static int
+cpfl_parse_pattern_rules(struct cpfl_flow_js_parser *parser, const struct
rte_flow_item *items,
+ const struct rte_flow_attr *attr,
+ struct cpfl_flow_pr_action *pr_action)
+{
+ int i, size;
+ struct cpfl_flow_js_pr *pattern;
+
+ size = parser->pr_size;
+ for (i = 0; i < size; i++) {
+ int ret;
+
+ pattern = &parser->patterns[i];
+ ret = cpfl_check_pattern_key(pattern, items, attr);
+ if (ret < 0)
+ continue;
+ /* pr->actions */
+ ret = cpfl_parse_pr_actions(pattern->actions,
pattern->actions_size, items, attr,
+ pr_action);
+ return ret;
+ }
+
+ return -EINVAL;
+}
+
+int
+cpfl_flow_parse_items(struct cpfl_flow_js_parser *parser, const struct
rte_flow_item *items,
+ const struct rte_flow_attr *attr,
+ struct cpfl_flow_pr_action *pr_action)
+{
+ int ret;
+
+ /* Pattern Rules */
+ ret = cpfl_parse_pattern_rules(parser, items, attr, pr_action);
+ return ret;
+}
+
+/* modifications rules */
+static int
+cpfl_check_actions_vxlan_encap(struct cpfl_flow_mr_key_action_vxlan_encap
*encap,
+ const struct rte_flow_action *action)
+{
+ const struct rte_flow_action_vxlan_encap *action_vxlan_encap;
+ struct rte_flow_item *definition;
+ int def_length, i, proto_size;
+
+ action_vxlan_encap = (const struct rte_flow_action_vxlan_encap
*)action->conf;
+ definition = action_vxlan_encap->definition;
+ def_length = cpfl_get_items_length(definition);
+ proto_size = encap->proto_size;
+ if (proto_size != def_length - 1) {
+ PMD_DRV_LOG(DEBUG, "protocols not match.");
+ return -EINVAL;
+ }
+ for (i = 0; i < proto_size; i++) {
+ enum rte_flow_item_type proto;
+
+ proto = encap->protocols[i];
+ if (proto == RTE_FLOW_ITEM_TYPE_VLAN) {
+ if (definition[i].type != RTE_FLOW_ITEM_TYPE_VOID) {
+ PMD_DRV_LOG(DEBUG, "protocols not match.");
+ return -EINVAL;
+ }
+ } else if (proto != definition[i].type) {
+ PMD_DRV_LOG(DEBUG, "protocols not match.");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+/* output: struct cpfl_flow_mr_key_action *mr_key_action */
+/* check and parse */
+static int
+cpfl_parse_mr_key_action(struct cpfl_flow_js_mr_key_action *key_acts, int size,
+ const struct rte_flow_action *actions,
+ struct cpfl_flow_mr_key_action *mr_key_action)
+{
+ int actions_length, i;
+ int j = 0;
+ int ret;
+
+ actions_length = cpfl_get_actions_length(actions);
+ if (size > actions_length - 1)
+ return -EINVAL;
+ for (i = 0; i < size; i++) {
+ enum rte_flow_action_type type;
+ struct cpfl_flow_js_mr_key_action *key_act;
+
+ key_act = &key_acts[i];
+ /* mr->key->actions->type */
+ type = key_act->type;
+ /* mr->key->actions->data */
+ /* match: <type> action matches RTE_FLOW_ACTION_TYPE_<type> */
+ if (type == RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP) {
+ int proto_size, k;
+ struct cpfl_flow_mr_key_action_vxlan_encap *encap;
+
+ while (j < actions_length &&
+ actions[j].type !=
RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP) {
+ j++;
+ }
+ if (j >= actions_length)
+ return -EINVAL;
+ mr_key_action[i].type =
RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP;
+ mr_key_action[i].encap.action = &actions[j];
+ encap = &mr_key_action[i].encap;
+
+ proto_size = key_act->encap.proto_size;
+ encap->proto_size = proto_size;
+ for (k = 0; k < proto_size; k++) {
+ enum rte_flow_item_type proto;
+
+ proto = key_act->encap.protocols[k];
+ encap->protocols[k] = proto;
+ }
+ ret = cpfl_check_actions_vxlan_encap(encap,
&actions[j]);
+ if (ret < 0)
+ return -EINVAL;
+
+ j++;
+ } else if (type == RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
+ while (j < actions_length &&
+ actions[j].type !=
RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
+ j++;
+ }
+ if (j >= actions_length)
+ return -EINVAL;
+
+ mr_key_action[i].type =
RTE_FLOW_ACTION_TYPE_VXLAN_DECAP;
+ j++;
+ } else {
+ PMD_DRV_LOG(ERR, "Not support this type: %d.", type);
+ return -EPERM;
+ }
+ }
+
+ return 0;
+}
+
+/* output: uint8_t *buffer, uint16_t *byte_len */
+static int
+cpfl_parse_layout(struct cpfl_flow_js_mr_layout *layouts, int layout_size,
+ struct cpfl_flow_mr_key_action *mr_key_action,
+ uint8_t *buffer, uint16_t *byte_len)
+{
+ int i;
+ int start = 0;
+
+ for (i = 0; i < layout_size; i++) {
+ int index, size, offset;
+ const char *hint;
+ const uint8_t *addr;
+ struct cpfl_flow_mr_key_action *temp;
+ struct cpfl_flow_js_mr_layout *layout;
+
+ layout = &layouts[i];
+ /* index links to the element of the actions array. */
+ index = layout->index;
+ size = layout->size;
+ offset = layout->offset;
+ if (index == -1) {
+ hint = "dummpy";
+ start += size;
+ continue;
+ }
+ hint = layout->hint;
+ addr = NULL;
+ temp = mr_key_action + index;
+ if (temp->type == RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP) {
+ const struct rte_flow_action_vxlan_encap
*action_vxlan_encap;
+ struct rte_flow_item *definition;
+ int def_length, k;
+
+ action_vxlan_encap =
+ (const struct rte_flow_action_vxlan_encap
*)temp->encap.action->conf;
+ definition = action_vxlan_encap->definition;
+ def_length = cpfl_get_items_length(definition);
+ for (k = 0; k < def_length - 1; k++) {
+ if ((strcmp(hint, "eth") == 0 &&
+ definition[k].type ==
RTE_FLOW_ITEM_TYPE_ETH) ||
+ (strcmp(hint, "ipv4") == 0 &&
+ definition[k].type ==
RTE_FLOW_ITEM_TYPE_IPV4) ||
+ (strcmp(hint, "udp") == 0 &&
+ definition[k].type ==
RTE_FLOW_ITEM_TYPE_UDP) ||
+ (strcmp(hint, "tcp") == 0 &&
+ definition[k].type ==
RTE_FLOW_ITEM_TYPE_TCP) ||
+ (strcmp(hint, "vxlan") == 0 &&
+ definition[k].type ==
RTE_FLOW_ITEM_TYPE_VXLAN)) {
+ addr = (const uint8_t
*)(definition[k].spec);
+ if (start > 255) {
+ *byte_len = 0;
+ PMD_DRV_LOG(ERR, "byte length
is too long%s",
+ hint);
+ return -EINVAL;
+ }
+ memcpy(buffer + start, addr + offset,
size);
+ break;
+ } /* TODO: more hint... */
+ }
+ if (k == def_length - 1) {
+ *byte_len = 0;
+ PMD_DRV_LOG(ERR, "can not find corresponding
hint: %s", hint);
+ return -EINVAL;
+ }
+ } else {
+ *byte_len = 0;
+ PMD_DRV_LOG(ERR, "Not support this type: %d.",
temp->type);
+ return -EINVAL;
+ }
+ /* else TODO: more type... */
+
+ start += size;
+ }
+ *byte_len = start;
+
+ return 0;
+}
+
+static int
+cpfl_parse_mr_action(struct cpfl_flow_js_mr_action *action,
+ struct cpfl_flow_mr_key_action *mr_key_action,
+ struct cpfl_flow_mr_action *mr_action)
+{
+ enum cpfl_flow_mr_action_type type;
+
+ /* mr->action->type */
+ type = action->type;
+ /* mr->action->data */
+ if (type == CPFL_JS_MR_ACTION_TYPE_MOD) {
+ struct cpfl_flow_js_mr_layout *layout;
+
+ mr_action->type = CPFL_JS_MR_ACTION_TYPE_MOD;
+ mr_action->mod.byte_len = 0;
+ mr_action->mod.prof = action->mod.prof;
+ layout = action->mod.layout;
+ if (layout) {
+ int ret;
+
+ memset(mr_action->mod.data, 0,
sizeof(mr_action->mod.data));
+ ret = cpfl_parse_layout(layout,
action->mod.layout_size, mr_key_action,
+ mr_action->mod.data,
&mr_action->mod.byte_len);
+ if (ret < 0)
+ return -EINVAL;
+ }
+ return 0;
+ }
+ PMD_DRV_LOG(ERR, "Not support this type: %d.", type);
+
+ return -EINVAL;
+}
+
+static int
+cpfl_check_mod_key(struct cpfl_flow_js_mr *mr, const struct rte_flow_action
*actions,
+ struct cpfl_flow_mr_key_action *mr_key_action)
+{
+ int key_action_size;
+
+ /* mr->key->actions */
+ key_action_size = mr->key.actions_size;
+ return cpfl_parse_mr_key_action(mr->key.actions, key_action_size,
actions, mr_key_action);
+}
+
+/* output: struct cpfl_flow_mr_action *mr_action */
+static int
+cpfl_parse_mod_rules(struct cpfl_flow_js_parser *parser, const struct
rte_flow_action *actions,
+ struct cpfl_flow_mr_action *mr_action)
+{
+ int i, size;
+ struct cpfl_flow_mr_key_action mr_key_action[CPFL_MOD_KEY_NUM_MAX] =
{0};
+
+ size = parser->mr_size;
+
+ for (i = 0; i < size; i++) {
+ int ret;
+ struct cpfl_flow_js_mr *mr;
+
+ mr = &parser->modifications[i];
+ ret = cpfl_check_mod_key(mr, actions, mr_key_action);
+ if (ret < 0)
+ continue;
+ /* mr->action */
+ ret = cpfl_parse_mr_action(&mr->action, mr_key_action,
mr_action);
+ if (!ret)
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+int
+cpfl_flow_parse_actions(struct cpfl_flow_js_parser *parser, const struct
rte_flow_action *actions,
+ struct cpfl_flow_mr_action *mr_action)
+{
+ /* modifications rules */
+ if (!parser->modifications) {
+ PMD_DRV_LOG(INFO, "The modifications is optional.");
+ return 0;
+ }
+
+ return cpfl_parse_mod_rules(parser, actions, mr_action);
+}
diff --git a/drivers/net/cpfl/cpfl_flow_parser.h
b/drivers/net/cpfl/cpfl_flow_parser.h
new file mode 100644
index 0000000000..9f118aaf71
--- /dev/null
+++ b/drivers/net/cpfl/cpfl_flow_parser.h
@@ -0,0 +1,220 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Intel Corporation
+ */
+#include <json-c/json.h>
+#include <rte_flow.h>
+
+#ifndef _CPFL_FLOW_PARSER_H_
+#define _CPFL_FLOW_PARSER_H_
+
+#define CPFL_FLOW_JSON_STR_SIZE_MAX 100
+#define CPFL_MAX_SEM_FV_KEY_SIZE 64
+#define CPFL_FLOW_JS_PROTO_SIZE 16
+#define CPFL_MOD_KEY_NUM_MAX 8
+
+/* Pattern Rules Storage */
+enum cpfl_flow_pr_action_type {
+ CPFL_JS_PR_ACTION_TYPE_SEM,
+ CPFL_JS_PR_ACTION_TYPE_UNKNOWN = -1,
+};
+
+/* This structure matches a sequence of fields in struct rte_flow_attr */
+struct cpfl_flow_js_pr_key_attr {
+ uint16_t ingress;
+ uint16_t egress;
+};
+
+struct cpfl_flow_js_pr_key_proto_field {
+ char name[CPFL_FLOW_JSON_STR_SIZE_MAX];
+ union {
+ char mask[CPFL_FLOW_JSON_STR_SIZE_MAX];
+ uint32_t mask_32b;
+ };
+};
+
+/* This structure matches a sequence of "struct rte_flow_item" */
+struct cpfl_flow_js_pr_key_proto {
+ enum rte_flow_item_type type;
+ struct cpfl_flow_js_pr_key_proto_field *fields;
+ int fields_size;
+};
+
+enum cpfl_flow_js_fv_type {
+ CPFL_FV_TYPE_PROTOCOL,
+ CPFL_FV_TYPE_IMMEDIATE,
+ CPFL_FV_TYPE_UNKNOWN = -1,
+};
+
+struct cpfl_flow_js_fv {
+ uint16_t offset;
+ enum cpfl_flow_js_fv_type type;
+ union {
+ uint16_t immediate;
+ struct {
+ uint16_t layer;
+ enum rte_flow_item_type header;
+ uint16_t offset;
+ uint16_t mask;
+ } proto;
+ };
+};
+
+/**
+ * This structure defines the message be used to composite the
+ * profile / key of a SEM control packet
+ */
+struct cpfl_flow_js_pr_action_sem {
+ uint16_t prof; /* SEM profile ID */
+ uint16_t subprof; /* SEM subprofile ID */
+ uint16_t keysize; /* extract key size in bytes */
+ struct cpfl_flow_js_fv *fv; /* A SEM field vector array */
+ int fv_size;
+};
+
+struct cpfl_flow_js_pr_action {
+ enum cpfl_flow_pr_action_type type;
+ union {
+ struct cpfl_flow_js_pr_action_sem sem;
+ };
+};
+
+/**
+ * This structure defines a set of rules that direct PMD how to parse rte_flow
+ * protocol headers. Each rule be described by a key object and a action array.
+ */
+struct cpfl_flow_js_pr {
+ struct {
+ struct cpfl_flow_js_pr_key_proto *protocols;
+ uint16_t proto_size;
+ struct cpfl_flow_js_pr_key_attr *attributes;
+ uint16_t attr_size;
+ } key;
+ /* An array to define how to map current key to low level pipeline
configuration. */
+ struct cpfl_flow_js_pr_action *actions;
+ uint16_t actions_size;
+};
+
+/* Modification Rules Storage */
+/**
+ * The vxlan_encap action matches RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP
+ * and include a sequence of protocol headers defined in field protocols
+ * of data.
+ */
+struct cpfl_flow_js_mr_key_action_vxlan_encap {
+ enum rte_flow_item_type protocols[CPFL_FLOW_JS_PROTO_SIZE];
+ int proto_size;
+};
+
+/* A set of modification rte_flow_action_xxx objects can be defined as a type
/ data pair. */
+struct cpfl_flow_js_mr_key_action {
+ enum rte_flow_action_type type;
+ union {
+ struct cpfl_flow_js_mr_key_action_vxlan_encap encap;
+ };
+};
+
+struct cpfl_flow_js_mr_key {
+ struct cpfl_flow_js_mr_key_action *actions;
+ int actions_size;
+};
+
+struct cpfl_flow_js_mr_layout {
+ int index;
+ char hint[CPFL_FLOW_JSON_STR_SIZE_MAX];
+ uint16_t offset;
+ uint16_t size;
+};
+
+struct cpfl_flow_js_mr_action_mod {
+ uint16_t prof;
+ uint16_t byte_len;
+ struct cpfl_flow_js_mr_layout *layout;
+ int layout_size;
+};
+
+enum cpfl_flow_mr_action_type {
+ CPFL_JS_MR_ACTION_TYPE_MOD,
+};
+
+/** Currently, the type can only be mod.
+ *
+ * For mod data, besides the profile ID, a layout array defines a set
+ * of hints that helps driver composing the MOD memory region when the
+ * action need to insert/update some packet data from user input.
+ */
+struct cpfl_flow_js_mr_action {
+ enum cpfl_flow_mr_action_type type;
+ union {
+ struct cpfl_flow_js_mr_action_mod mod;
+ };
+};
+
+/**
+ * This structure defines a set of rules that direct PMD to parse rte_flow
modification
+ * actions. Each rule be described by a pair of key and action
+ */
+struct cpfl_flow_js_mr {
+ struct cpfl_flow_js_mr_key key;
+ struct cpfl_flow_js_mr_action action;
+};
+
+struct cpfl_flow_js_parser {
+ struct cpfl_flow_js_pr *patterns;
+ int pr_size;
+ struct cpfl_flow_js_mr *modifications;
+ int mr_size;
+};
+
+/* Pattern Rules */
+struct cpfl_flow_pr_action_sem {
+ uint16_t prof;
+ uint16_t subprof;
+ uint16_t keysize;
+ uint8_t cpfl_flow_pr_fv[CPFL_MAX_SEM_FV_KEY_SIZE];
+};
+
+struct cpfl_flow_pr_action {
+ enum cpfl_flow_pr_action_type type;
+ union {
+ struct cpfl_flow_pr_action_sem sem;
+ };
+};
+
+
+/* Modification Rules */
+struct cpfl_flow_mr_key_action_vxlan_encap {
+ enum rte_flow_item_type protocols[CPFL_FLOW_JS_PROTO_SIZE];
+ uint16_t proto_size;
+ const struct rte_flow_action *action;
+};
+
+struct cpfl_flow_mr_key_action {
+ enum rte_flow_action_type type;
+ union {
+ struct cpfl_flow_mr_key_action_vxlan_encap encap;
+ };
+};
+
+struct cpfl_flow_mr_action_mod {
+ uint16_t prof;
+ uint16_t byte_len;
+ uint8_t data[256];
+};
+
+struct cpfl_flow_mr_action {
+ enum cpfl_flow_mr_action_type type;
+ union {
+ struct cpfl_flow_mr_action_mod mod;
+ };
+};
+
+int cpfl_parser_create(struct cpfl_flow_js_parser **parser, const char
*filename);
+int cpfl_parser_destroy(struct cpfl_flow_js_parser *parser);
+int cpfl_flow_parse_items(struct cpfl_flow_js_parser *parser,
+ const struct rte_flow_item *items,
+ const struct rte_flow_attr *attr,
+ struct cpfl_flow_pr_action *pr_action);
+int cpfl_flow_parse_actions(struct cpfl_flow_js_parser *parser,
+ const struct rte_flow_action *actions,
+ struct cpfl_flow_mr_action *mr_action);
+#endif
diff --git a/drivers/net/cpfl/meson.build b/drivers/net/cpfl/meson.build
index 0be25512c3..7b8d043011 100644
--- a/drivers/net/cpfl/meson.build
+++ b/drivers/net/cpfl/meson.build
@@ -41,6 +41,9 @@ endif
js_dep = dependency('json-c', required: false, method : 'pkg-config')
if js_dep.found()
+ sources += files(
+ 'cpfl_flow_parser.c',
+ )
dpdk_conf.set('CPFL_FLOW_JSON_SUPPORT', true)
ext_deps += js_dep
endif
\ No newline at end of file
--
2.25.1
