@@ -128,12 +128,24 @@ Runtime Configuration
-a BDF,representor=vf[0-3],representor=c1pf1
+- ``flow_parser`` (default ``not enabled``)
+
+ The cpfl PMD supports utilizing a JSON config file to translate rte_flow tokens into
+ low-level hardware resources.
+ Using the ``devargs`` option ``flow_parser`` the user can specify the path
+ of a json file, for example::
+
+ -a ca:00.0,flow_parser="refpkg.json"
+
+ Then the PMD will load json file for device ``ca:00.0``.
+ The parameter is optional.
Driver compilation and testing
------------------------------
Refer to the document :doc:`build_and_test` for details.
+The json-c library must be installed to use rte_flow.
Features
--------
@@ -164,3 +176,21 @@ Hairpin queue
E2100 Series can loopback packets from RX port to TX port.
This feature is called port-to-port or hairpin.
Currently, the PMD only supports single port hairpin.
+
+Rte_flow
+~~~~~~~~~~~~~
+
+PMD uses a json file to direct CPF PMD to parse rte_flow tokens into
+low level hardware resources.
+
+- Required Libraries
+
+ * json-c (version 0.14+)
+
+ * For Ubuntu, it can be installed using `apt install libjson-c-dev`
+
+- run testpmd with the json file
+
+ .. code-block:: console
+
+ dpdk-testpmd -c 0x3 -n 4 -a 0000:af:00.6,vport=[0],flow_parser="refpkg.json" -- -i
@@ -21,6 +21,10 @@
#define CPFL_RX_SINGLE_Q "rx_single"
#define CPFL_VPORT "vport"
+#ifdef CPFL_FLOW_JSON_SUPPORT
+#define CPFL_FLOW_PARSER "flow_parser"
+#endif
+
rte_spinlock_t cpfl_adapter_lock;
/* A list for all adapters, one adapter matches one PCI device */
struct cpfl_adapter_list cpfl_adapter_list;
@@ -31,6 +35,9 @@ static const char * const cpfl_valid_args_first[] = {
CPFL_TX_SINGLE_Q,
CPFL_RX_SINGLE_Q,
CPFL_VPORT,
+#ifdef CPFL_FLOW_JSON_SUPPORT
+ CPFL_FLOW_PARSER,
+#endif
NULL
};
@@ -1537,6 +1544,24 @@ parse_repr(const char *key __rte_unused, const char *value, void *args)
return 0;
}
+#ifdef CPFL_FLOW_JSON_SUPPORT
+static int
+parse_file(const char *key, const char *value, void *args)
+{
+ char *name = args;
+
+ if (strlen(value) > CPFL_FLOW_FILE_LEN - 1) {
+ PMD_DRV_LOG(ERR, "file path(%s) is too long.", value);
+ return -1;
+ }
+
+ PMD_DRV_LOG(DEBUG, "value:\"%s\" for key:\"%s\"", value, key);
+ strlcpy(name, value, CPFL_FLOW_FILE_LEN);
+
+ return 0;
+}
+#endif
+
static int
cpfl_parse_devargs(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *adapter, bool first)
{
@@ -1585,7 +1610,18 @@ cpfl_parse_devargs(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *adap
&adapter->base.is_rx_singleq);
if (ret != 0)
goto fail;
-
+#ifdef CPFL_FLOW_JSON_SUPPORT
+ if (rte_kvargs_get(kvlist, CPFL_FLOW_PARSER)) {
+ ret = rte_kvargs_process(kvlist, CPFL_FLOW_PARSER,
+ &parse_file, cpfl_args->flow_parser);
+ if (ret) {
+ PMD_DRV_LOG(ERR, "Failed to parser flow_parser, ret: %d", ret);
+ goto fail;
+ }
+ } else {
+ cpfl_args->flow_parser[0] = '\0';
+ }
+#endif
fail:
rte_kvargs_free(kvlist);
return ret;
@@ -77,6 +77,11 @@
#define CPFL_VPORT_LAN_PF 0
#define CPFL_VPORT_LAN_VF 1
+#define CPFL_FLOW_FILE_LEN 100
+#define CPFL_INVALID_HW_ID UINT16_MAX
+#define CPFL_META_CHUNK_LENGTH 1024
+#define CPFL_META_LENGTH 32
+
/* bit[15:14] type
* bit[13] host/accelerator core
* bit[12] apf/cpf
@@ -99,6 +104,7 @@ struct cpfl_devargs {
uint16_t req_vport_nb;
uint8_t repr_args_num;
struct rte_eth_devargs repr_args[CPFL_REPR_ARG_NUM_MAX];
+ char flow_parser[CPFL_FLOW_FILE_LEN];
};
struct p2p_queue_chunks_info {
@@ -165,6 +171,20 @@ struct cpfl_repr {
bool func_up; /* If the represented function is up */
};
+struct cpfl_metadata_chunk {
+ int type;
+ uint8_t data[CPFL_META_CHUNK_LENGTH];
+};
+
+/**
+ * It is driver's responsibility to simlulate a metadata buffer which
+ * can be used as data source to fill the key of a flow rule.
+ */
+struct cpfl_metadata {
+ int length;
+ struct cpfl_metadata_chunk chunks[CPFL_META_LENGTH];
+};
+
struct cpfl_adapter_ext {
TAILQ_ENTRY(cpfl_adapter_ext) next;
struct idpf_adapter base;
@@ -185,6 +205,8 @@ struct cpfl_adapter_ext {
rte_spinlock_t repr_lock;
struct rte_hash *repr_allowlist_hash;
+
+ struct cpfl_metadata meta;
};
TAILQ_HEAD(cpfl_adapter_list, cpfl_adapter_ext);
@@ -211,4 +233,58 @@ int cpfl_cc_vport_info_get(struct cpfl_adapter_ext *adapter,
#define CPFL_DEV_TO_ITF(dev) \
((struct cpfl_itf *)((dev)->data->dev_private))
+static inline uint16_t
+cpfl_get_port_id(struct cpfl_itf *itf)
+{
+ if (!itf)
+ return CPFL_INVALID_HW_ID;
+
+ if (itf->type == CPFL_ITF_TYPE_VPORT) {
+ struct cpfl_vport *vport = (void *)itf;
+
+ return vport->base.devarg_id;
+ }
+
+ return CPFL_INVALID_HW_ID;
+}
+
+static inline uint16_t
+cpfl_get_vsi_id(struct cpfl_itf *itf)
+{
+ struct cpfl_adapter_ext *adapter = itf->adapter;
+ struct cpfl_vport_info *info;
+ uint32_t vport_id;
+ int ret;
+ struct cpfl_vport_id vport_identity;
+
+ if (!itf)
+ return CPFL_INVALID_HW_ID;
+
+ if (itf->type == CPFL_ITF_TYPE_REPRESENTOR) {
+ struct cpfl_repr *repr = (void *)itf;
+
+ return repr->vport_info->vport.info.vsi_id;
+ } else if (itf->type == CPFL_ITF_TYPE_VPORT) {
+ vport_id = ((struct cpfl_vport *)itf)->base.vport_id;
+
+ vport_identity.func_type = CPCHNL2_FUNC_TYPE_PF;
+ /* host: CPFL_HOST0_CPF_ID, acc: CPFL_ACC_CPF_ID */
+ vport_identity.pf_id = CPFL_ACC_CPF_ID;
+ vport_identity.vf_id = 0;
+ vport_identity.vport_id = vport_id;
+ ret = rte_hash_lookup_data(adapter->vport_map_hash,
+ &vport_identity,
+ (void **)&info);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "vport id not exist");
+ goto err;
+ }
+
+ return info->vport.info.vsi_id;
+ }
+
+err:
+ return CPFL_INVALID_HW_ID;
+}
+
#endif /* _CPFL_ETHDEV_H_ */
new file mode 100644
@@ -0,0 +1,1302 @@
+/* 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 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_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 *ob_pr_key_attrs, struct cpfl_flow_js_pr *js_pr)
+{
+ int i, len;
+ struct cpfl_flow_js_pr_key_attr *attr;
+
+ len = json_object_array_length(ob_pr_key_attrs);
+ 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(ob_pr_key_attrs, i);
+ name = cpfl_json_object_to_string(object, "Name");
+ if (!name) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'Name'.");
+ goto err;
+ }
+ ret = cpfl_json_object_to_uint16(object, "Value", &value);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'value'.");
+ goto err;
+ }
+ if (strcmp(name, "ingress") == 0) {
+ attr->ingress = value;
+ } else if (strcmp(name, "egress") == 0) {
+ attr->egress = value;
+ } else {
+ /* TODO: more... */
+ PMD_DRV_LOG(ERR, "Not support attr name: %s.", name);
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ rte_free(js_pr->key.attributes);
+ return -EINVAL;
+}
+
+static int
+cpfl_flow_js_pattern_key_proto_field(json_object *ob_fields,
+ struct cpfl_flow_js_pr_key_proto *js_field)
+{
+ int len, i;
+
+ if (!ob_fields)
+ return 0;
+ len = json_object_array_length(ob_fields);
+ if (len == 0)
+ return 0;
+ js_field->fields_size = len;
+ 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(ob_fields, 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;
+ }
+ if (strlen(mask) > CPFL_FLOW_JSON_STR_SIZE_MAX) {
+ PMD_DRV_LOG(ERR, "The 'mask' is too long.");
+ 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 *ob_pr_key_protos, struct cpfl_flow_js_pr *js_pr)
+{
+ int len, i, ret;
+
+ len = json_object_array_length(ob_pr_key_protos);
+ if (len == 0)
+ return 0;
+ 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, *ob_fields;
+ const char *type;
+ enum rte_flow_item_type item_type;
+
+ object = json_object_array_get_idx(ob_pr_key_protos, 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 */
+ ob_fields = json_object_object_get(object, "fields");
+ ret = cpfl_flow_js_pattern_key_proto_field(ob_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 *ob_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(ob_value, "layer", &layer);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'value'.");
+ return -EINVAL;
+ }
+
+ header = cpfl_json_object_to_string(ob_value, "header");
+ if (!header) {
+ PMD_DRV_LOG(ERR, "Can not parse string 'header'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(ob_value, "offset", &offset);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'offset'.");
+ return -EINVAL;
+ }
+ ret = cpfl_json_object_to_uint16(ob_value, "mask", &mask);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'mask'.");
+ return -EINVAL;
+ }
+ type = cpfl_get_item_type_by_str(header);
+ if (type == RTE_FLOW_ITEM_TYPE_VOID)
+ return -EINVAL;
+ js_fv->proto.layer = layer;
+ js_fv->proto.offset = offset;
+ js_fv->proto.mask = mask;
+ js_fv->proto.header = type;
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_act_fv_metadata(json_object *ob_value, struct cpfl_flow_js_fv *js_fv)
+{
+ int ret;
+
+ ret = cpfl_json_object_to_uint16(ob_value, "type", &js_fv->meta.type);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'size'.");
+ return ret;
+ }
+ ret = cpfl_json_object_to_uint16(ob_value, "offset", &js_fv->meta.offset);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'size'.");
+ return ret;
+ }
+ ret = cpfl_json_object_to_uint16(ob_value, "mask", &js_fv->meta.mask);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'size'.");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+cpfl_flow_js_pattern_act_fv(json_object *ob_fvs, struct cpfl_flow_js_pr_action *js_act)
+{
+ int len, i;
+
+ len = json_object_array_length(ob_fvs);
+ if (len == 0)
+ return 0;
+ 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, *ob_value;
+ uint16_t offset = 0;
+ const char *type;
+ int ret;
+
+ js_fv = &js_act->sem.fv[i];
+ object = json_object_array_get_idx(ob_fvs, 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;
+ }
+ ob_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(ob_value);
+ } else if (strcmp(type, "metadata") == 0) {
+ js_fv->type = CPFL_FV_TYPE_METADATA;
+ cpfl_flow_js_pattern_act_fv_metadata(ob_value, js_fv);
+ } else if (strcmp(type, "protocol") == 0) {
+ js_fv->type = CPFL_FV_TYPE_PROTOCOL;
+ cpfl_flow_js_pattern_act_fv_proto(ob_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 *ob_per_act, struct cpfl_flow_js_pr_action *js_act)
+{
+ const char *type;
+ int ret;
+
+ /* pr->actions->type */
+ type = cpfl_json_object_to_string(ob_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 *ob_fvs, *ob_sem;
+
+ js_act->type = CPFL_JS_PR_ACTION_TYPE_SEM;
+ ob_sem = json_object_object_get(ob_per_act, "data");
+ ret = cpfl_json_object_to_uint16(ob_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(ob_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(ob_sem, "keysize",
+ &js_act->sem.keysize);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse 'keysize'.");
+ return -EINVAL;
+ }
+ ob_fvs = json_object_object_get(ob_sem, "fieldvectors");
+ ret = cpfl_flow_js_pattern_act_fv(ob_fvs, 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 *ob_pr_acts, struct cpfl_flow_js_pr *js_pr)
+{
+ int i, len, ret;
+
+ len = json_object_array_length(ob_pr_acts);
+ if (len == 0)
+ return 0;
+ 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(ob_pr_acts, 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;
+}
+
+/**
+ * The patterns object array defines a set of rules directing the PMD to match sequences of
+ * rte_flow protocol headers and translate them into profile/field vectors for each pipeline
+ * stage. This object is mandatory.
+ */
+static int
+cpfl_flow_js_pattern_rule(json_object *ob_root, struct cpfl_flow_js_parser *parser)
+{
+ json_object *ob_prs;
+ int i, len;
+
+ /* Pattern Rules */
+ ob_prs = json_object_object_get(ob_root, "patterns");
+ if (!ob_prs) {
+ PMD_DRV_LOG(ERR, "The patterns is mandatory.");
+ return -EINVAL;
+ }
+
+ len = json_object_array_length(ob_prs);
+ if (len == 0)
+ return 0;
+ 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;
+ json_object *ob_pr_actions;
+ json_object *ob_pr_key;
+ json_object *ob_pr_key_protos;
+ json_object *ob_pr_key_attrs;
+ int ret;
+
+ object = json_object_array_get_idx(ob_prs, i);
+ /* pr->key */
+ ob_pr_key = json_object_object_get(object, "key");
+ /* pr->key->protocols */
+ ob_pr_key_protos = json_object_object_get(ob_pr_key, "protocols");
+ ret = cpfl_flow_js_pattern_key_proto(ob_pr_key_protos, &parser->patterns[i]);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse key->protocols.");
+ goto err;
+ }
+ /* pr->key->attributes */
+ ob_pr_key_attrs = json_object_object_get(ob_pr_key, "attributes");
+ ret = cpfl_flow_js_pattern_key_attr(ob_pr_key_attrs, &parser->patterns[i]);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Can not parse key->attributes.");
+ goto err;
+ }
+ /* pr->actions */
+ ob_pr_actions = json_object_object_get(object, "actions");
+ ret = cpfl_flow_js_pattern_act(ob_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_parser_init(json_object *ob_root, struct cpfl_flow_js_parser *parser)
+{
+ int ret = 0;
+
+ ret = cpfl_flow_js_pattern_rule(ob_root, parser);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "parse pattern_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)
+ continue;
+ 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);
+ 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_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 >> 8);
+ fv[2 * offset + 1] = (uint8_t)(temp_fv & 0x00ff);
+ break;
+ }
+ layer++;
+ } /* TODO: more type... */
+ }
+
+ return 0;
+}
+
+static int
+cpfl_parse_fieldvectors(struct cpfl_itf *itf, 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 >> 8);
+ fv[2 * offset + 1] = (uint8_t)(temp_fv & 0x00ff);
+ } else if (type == CPFL_FV_TYPE_METADATA) {
+ uint16_t type, v_offset, mask;
+
+ type = js_fv->meta.type;
+ v_offset = js_fv->meta.offset;
+ mask = js_fv->meta.mask;
+ temp_fv = cpfl_metadata_read16(&itf->adapter->meta, type, v_offset) & mask;
+ fv[2 * offset] = (uint8_t)(temp_fv & 0x00ff);
+ fv[2 * offset + 1] = (uint8_t)(temp_fv >> 8);
+ } 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_itf *itf,
+ 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 == 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(itf, 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_check_eth_mask(const char *mask, struct rte_ether_addr addr)
+{
+ int i, ret;
+ struct rte_ether_addr mask_bytes;
+
+ ret = rte_ether_unformat_addr(mask, &mask_bytes);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "translate mac address from string to rte_ether_addr failed.");
+ return -EINVAL;
+ }
+ /* validate eth mask addr if match */
+ for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
+ if (mask_bytes.addr_bytes[i] != addr.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) < 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) < 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) {
+ 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];
+ name = field->name;
+ 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: %s.", 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) || (field_size == 0 && icmp_mask))
+ return -EINVAL;
+
+ 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)
+{
+ 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 */
+int
+cpfl_flow_parse_items(struct cpfl_itf *itf,
+ 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(itf, pattern->actions, pattern->actions_size,
+ items, attr, pr_action);
+ return ret;
+ }
+
+ return -EINVAL;
+}
+
+bool
+cpfl_metadata_write_port_id(struct cpfl_itf *itf)
+{
+ uint16_t dev_id;
+ const int type = 0;
+ const int offset = 5;
+
+ dev_id = cpfl_get_port_id(itf);
+ if (dev_id == CPFL_INVALID_HW_ID) {
+ PMD_DRV_LOG(ERR, "fail to get hw ID\n");
+ return false;
+ }
+ cpfl_metadata_write16(&itf->adapter->meta, type, offset, dev_id << 3);
+
+ return true;
+}
+
+bool
+cpfl_metadata_write_targetvsi(struct cpfl_itf *itf)
+{
+ uint16_t dev_id;
+ const int type = 6;
+ const int offset = 2;
+
+ dev_id = cpfl_get_vsi_id(itf);
+ if (dev_id == CPFL_INVALID_HW_ID) {
+ PMD_DRV_LOG(ERR, "fail to get hw ID");
+ return false;
+ }
+ cpfl_metadata_write16(&itf->adapter->meta, type, offset, dev_id << 1);
+
+ return true;
+}
+
+bool
+cpfl_metadata_write_sourcevsi(struct cpfl_itf *itf)
+{
+ uint16_t dev_id;
+ const int type = 6;
+ const int offset = 0;
+
+ dev_id = cpfl_get_vsi_id(itf);
+ if (dev_id == CPFL_INVALID_HW_ID) {
+ PMD_DRV_LOG(ERR, "fail to get hw ID");
+ return false;
+ }
+ cpfl_metadata_write16(&itf->adapter->meta, type, offset, dev_id);
+
+ return true;
+}
+
+bool cpfl_metadata_write_vsi(struct cpfl_itf *itf)
+{
+ uint16_t dev_id;
+ const int type = 0;
+ const int offset = 24;
+
+ dev_id = cpfl_get_vsi_id(itf);
+ if (dev_id == CPFL_INVALID_HW_ID) {
+ PMD_DRV_LOG(ERR, "fail to get hw ID");
+ return false;
+ }
+ cpfl_metadata_write16(&itf->adapter->meta, type, offset, dev_id);
+
+ return true;
+}
new file mode 100644
@@ -0,0 +1,167 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Intel Corporation
+ */
+#include <json-c/json.h>
+#include <rte_flow.h>
+#include "cpfl_ethdev.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_METADATA,
+ CPFL_FV_TYPE_UNKNOWN = -1,
+};
+
+struct cpfl_flow_js_fv {
+ uint16_t offset;
+ enum cpfl_flow_js_fv_type type;
+ union {
+ /* a 16 bits value */
+ uint16_t immediate;
+ /* a reference to a protocol header with a <header, layer, offset, mask> tuple */
+ struct {
+ enum rte_flow_item_type header;
+ uint16_t layer;
+ uint16_t offset;
+ uint16_t mask;
+ } proto;
+ /* a reference to a metadata */
+ struct {
+ uint16_t type;
+ uint16_t offset;
+ uint16_t mask;
+ } meta;
+ };
+};
+
+/**
+ * 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;
+};
+
+/* define how to map current key to low level pipeline configuration */
+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;
+};
+
+struct cpfl_flow_js_parser {
+ struct cpfl_flow_js_pr *patterns;
+ int pr_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;
+ };
+};
+
+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_itf *itf,
+ 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);
+bool cpfl_metadata_write_port_id(struct cpfl_itf *itf);
+bool cpfl_metadata_write_vsi(struct cpfl_itf *itf);
+bool cpfl_metadata_write_targetvsi(struct cpfl_itf *itf);
+bool cpfl_metadata_write_sourcevsi(struct cpfl_itf *itf);
+
+static inline void
+cpfl_metadata_init(struct cpfl_metadata *meta)
+{
+ int i;
+
+ for (i = 0; i < CPFL_META_LENGTH; i++)
+ meta->chunks[i].type = i;
+}
+
+static inline void
+cpfl_metadata_write16(struct cpfl_metadata *meta, int type, int offset, uint16_t data)
+{
+ rte_memcpy(&meta->chunks[type].data[offset], &data, sizeof(uint16_t));
+}
+
+static inline void
+cpfl_metadata_write32(struct cpfl_metadata *meta, int type, int offset, uint32_t data)
+{
+ rte_memcpy(&meta->chunks[type].data[offset], &data, sizeof(uint32_t));
+}
+
+static inline uint16_t
+cpfl_metadata_read16(struct cpfl_metadata *meta, int type, int offset)
+{
+ return *((uint16_t *)(&meta->chunks[type].data[offset]));
+}
+
+#endif
@@ -38,3 +38,16 @@ if arch_subdir == 'x86'
cflags += ['-DCC_AVX512_SUPPORT']
endif
endif
+
+js_dep = dependency('json-c', required: false, method : 'pkg-config')
+if js_dep.found()
+ if js_dep.version().version_compare('<0.14')
+ message('json-c lib version is too low')
+ else
+ sources += files(
+ 'cpfl_flow_parser.c',
+ )
+ dpdk_conf.set('CPFL_FLOW_JSON_SUPPORT', true)
+ ext_deps += js_dep
+ endif
+endif