[dpdk-dev] [PATCH 10/12] examples/ip_pipeline: support rule time read

[Cristian Dumitrescu <cristian.dumitrescu@intel.com>]

Add support for the table rule timestamp read operation.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
---
 examples/ip_pipeline/cli.c      | 106 ++++++++++++++++++++++++++++++++++++++++
 examples/ip_pipeline/pipeline.h |   7 +++
 examples/ip_pipeline/thread.c   |  96 ++++++++++++++++++++++++++++++++++++
 3 files changed, 209 insertions(+)

diff --git a/examples/ip_pipeline/cli.c b/examples/ip_pipeline/cli.c
index 6561152..552e0df 100644
--- a/examples/ip_pipeline/cli.c
+++ b/examples/ip_pipeline/cli.c
@@ -5407,6 +5407,92 @@ cmd_pipeline_table_rule_ttl_read(char **tokens,
 		stats.n_packets);
 }
 
+static const char cmd_pipeline_table_rule_time_read_help[] =
+"pipeline <pipeline_name> table <table_id> rule read time\n"
+"     match <match>\n";
+
+static void
+cmd_pipeline_table_rule_time_read(char **tokens,
+	uint32_t n_tokens,
+	char *out,
+	size_t out_size)
+{
+	struct table_rule_match m;
+	char *pipeline_name;
+	uint64_t timestamp;
+	uint32_t table_id, n_tokens_parsed;
+	int status;
+
+	if (n_tokens < 7) {
+		snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]);
+		return;
+	}
+
+	pipeline_name = tokens[1];
+
+	if (strcmp(tokens[2], "table") != 0) {
+		snprintf(out, out_size, MSG_ARG_NOT_FOUND, "table");
+		return;
+	}
+
+	if (parser_read_uint32(&table_id, tokens[3]) != 0) {
+		snprintf(out, out_size, MSG_ARG_INVALID, "table_id");
+		return;
+	}
+
+	if (strcmp(tokens[4], "rule") != 0) {
+		snprintf(out, out_size, MSG_ARG_NOT_FOUND, "rule");
+		return;
+	}
+
+	if (strcmp(tokens[5], "read") != 0) {
+		snprintf(out, out_size, MSG_ARG_NOT_FOUND, "read");
+		return;
+	}
+
+	if (strcmp(tokens[6], "time") != 0) {
+		snprintf(out, out_size, MSG_ARG_NOT_FOUND, "time");
+		return;
+	}
+
+	n_tokens -= 7;
+	tokens += 7;
+
+	/* match */
+	if ((n_tokens == 0) || strcmp(tokens[0], "match")) {
+		snprintf(out, out_size, MSG_ARG_NOT_FOUND, "match");
+		return;
+	}
+
+	n_tokens_parsed = parse_match(tokens,
+		n_tokens,
+		out,
+		out_size,
+		&m);
+	if (n_tokens_parsed == 0)
+		return;
+	n_tokens -= n_tokens_parsed;
+	tokens += n_tokens_parsed;
+
+	/* end */
+	if (n_tokens) {
+		snprintf(out, out_size, MSG_ARG_INVALID, tokens[0]);
+		return;
+	}
+
+	/* Read table rule timestamp. */
+	status = pipeline_table_rule_time_read(pipeline_name,
+		table_id,
+		&m,
+		&timestamp);
+	if (status) {
+		snprintf(out, out_size, MSG_CMD_FAIL, tokens[0]);
+		return;
+	}
+
+	/* Print stats. */
+	snprintf(out, out_size, "Packets: %" PRIu64 "\n", timestamp);
+}
 
 static const char cmd_thread_pipeline_enable_help[] =
 "thread <thread_id> pipeline <pipeline_name> enable\n";
@@ -5537,6 +5623,7 @@ cmd_help(char **tokens, uint32_t n_tokens, char *out, size_t out_size)
 			"\tpipeline table rule meter read\n"
 			"\tpipeline table dscp\n"
 			"\tpipeline table rule ttl read\n"
+			"\tpipeline table rule time read\n"
 			"\tthread pipeline enable\n"
 			"\tthread pipeline disable\n\n");
 		return;
@@ -5788,6 +5875,15 @@ cmd_help(char **tokens, uint32_t n_tokens, char *out, size_t out_size)
 				cmd_pipeline_table_rule_ttl_read_help);
 			return;
 		}
+
+		if ((n_tokens == 5) &&
+			(strcmp(tokens[2], "rule") == 0) &&
+			(strcmp(tokens[3], "time") == 0) &&
+			(strcmp(tokens[4], "read") == 0)) {
+			snprintf(out, out_size, "\n%s\n",
+				cmd_pipeline_table_rule_time_read_help);
+			return;
+		}
 	}
 
 	if ((n_tokens == 3) &&
@@ -6096,6 +6192,16 @@ cli_process(char *in, char *out, size_t out_size)
 				out, out_size);
 			return;
 		}
+
+		if ((n_tokens >= 7) &&
+			(strcmp(tokens[2], "table") == 0) &&
+			(strcmp(tokens[4], "rule") == 0) &&
+			(strcmp(tokens[5], "read") == 0) &&
+			(strcmp(tokens[6], "time") == 0)) {
+			cmd_pipeline_table_rule_time_read(tokens, n_tokens,
+				out, out_size);
+			return;
+		}
 	}
 
 	if (strcmp(tokens[0], "thread") == 0) {
diff --git a/examples/ip_pipeline/pipeline.h b/examples/ip_pipeline/pipeline.h
index 4e2d328..278775c 100644
--- a/examples/ip_pipeline/pipeline.h
+++ b/examples/ip_pipeline/pipeline.h
@@ -389,6 +389,13 @@ pipeline_table_rule_ttl_read(const char *pipeline_name,
 	struct table_rule_match *match,
 	struct rte_table_action_ttl_counters *stats,
 	int clear);
+
+int
+pipeline_table_rule_time_read(const char *pipeline_name,
+	uint32_t table_id,
+	struct table_rule_match *match,
+	uint64_t *timestamp);
+
 struct table_rule *
 table_rule_find(struct table *table,
 	struct table_rule_match *match);
diff --git a/examples/ip_pipeline/thread.c b/examples/ip_pipeline/thread.c
index e1142d9..e1b6fb6 100644
--- a/examples/ip_pipeline/thread.c
+++ b/examples/ip_pipeline/thread.c
@@ -584,6 +584,7 @@ enum pipeline_req_type {
 	PIPELINE_REQ_TABLE_RULE_MTR_READ,
 	PIPELINE_REQ_TABLE_DSCP_TABLE_UPDATE,
 	PIPELINE_REQ_TABLE_RULE_TTL_READ,
+	PIPELINE_REQ_TABLE_RULE_TIME_READ,
 	PIPELINE_REQ_MAX
 };
 
@@ -647,6 +648,10 @@ struct pipeline_msg_req_table_rule_ttl_read {
 	int clear;
 };
 
+struct pipeline_msg_req_table_rule_time_read {
+	void *data;
+};
+
 struct pipeline_msg_req {
 	enum pipeline_req_type type;
 	uint32_t id; /* Port IN, port OUT or table ID */
@@ -666,6 +671,7 @@ struct pipeline_msg_req {
 		struct pipeline_msg_req_table_rule_mtr_read table_rule_mtr_read;
 		struct pipeline_msg_req_table_dscp_table_update table_dscp_table_update;
 		struct pipeline_msg_req_table_rule_ttl_read table_rule_ttl_read;
+		struct pipeline_msg_req_table_rule_time_read table_rule_time_read;
 	};
 };
 
@@ -705,6 +711,10 @@ struct pipeline_msg_rsp_table_rule_ttl_read {
 	struct rte_table_action_ttl_counters stats;
 };
 
+struct pipeline_msg_rsp_table_rule_time_read {
+	uint64_t timestamp;
+};
+
 struct pipeline_msg_rsp {
 	int status;
 
@@ -719,6 +729,7 @@ struct pipeline_msg_rsp {
 		struct pipeline_msg_rsp_table_rule_stats_read table_rule_stats_read;
 		struct pipeline_msg_rsp_table_rule_mtr_read table_rule_mtr_read;
 		struct pipeline_msg_rsp_table_rule_ttl_read table_rule_ttl_read;
+		struct pipeline_msg_rsp_table_rule_time_read table_rule_time_read;
 	};
 };
 
@@ -2167,6 +2178,71 @@ pipeline_table_rule_ttl_read(const char *pipeline_name,
 	return status;
 }
 
+int
+pipeline_table_rule_time_read(const char *pipeline_name,
+	uint32_t table_id,
+	struct table_rule_match *match,
+	uint64_t *timestamp)
+{
+	struct pipeline *p;
+	struct table *table;
+	struct pipeline_msg_req *req;
+	struct pipeline_msg_rsp *rsp;
+	struct table_rule *rule;
+	int status;
+
+	/* Check input params */
+	if ((pipeline_name == NULL) ||
+		(match == NULL) ||
+		(timestamp == NULL))
+		return -1;
+
+	p = pipeline_find(pipeline_name);
+	if ((p == NULL) ||
+		(table_id >= p->n_tables) ||
+		match_check(match, p, table_id))
+		return -1;
+
+	table = &p->table[table_id];
+
+	rule = table_rule_find(table, match);
+	if (rule == NULL)
+		return -1;
+
+	if (!pipeline_is_running(p)) {
+		status = rte_table_action_time_read(table->a,
+				rule->data,
+				timestamp);
+
+		return status;
+	}
+
+	/* Allocate request */
+	req = pipeline_msg_alloc();
+	if (req == NULL)
+		return -1;
+
+	/* Write request */
+	req->type = PIPELINE_REQ_TABLE_RULE_TIME_READ;
+	req->id = table_id;
+	req->table_rule_time_read.data = rule->data;
+
+	/* Send request and wait for response */
+	rsp = pipeline_msg_send_recv(p, req);
+	if (rsp == NULL)
+		return -1;
+
+	/* Read response */
+	status = rsp->status;
+	if (status == 0)
+		*timestamp = rsp->table_rule_time_read.timestamp;
+
+	/* Free response */
+	pipeline_msg_free(rsp);
+
+	return status;
+}
+
 /**
  * Data plane threads: message handling
  */
@@ -2942,6 +3018,22 @@ pipeline_msg_handle_table_rule_ttl_read(struct pipeline_data *p,
 	return rsp;
 }
 
+static struct pipeline_msg_rsp *
+pipeline_msg_handle_table_rule_time_read(struct pipeline_data *p,
+	struct pipeline_msg_req *req)
+{
+	struct pipeline_msg_rsp *rsp = (struct pipeline_msg_rsp *) req;
+	uint32_t table_id = req->id;
+	void *data = req->table_rule_time_read.data;
+	struct rte_table_action *a = p->table_data[table_id].a;
+
+	rsp->status = rte_table_action_time_read(a,
+		data,
+		&rsp->table_rule_time_read.timestamp);
+
+	return rsp;
+}
+
 static void
 pipeline_msg_handle(struct pipeline_data *p)
 {
@@ -3018,6 +3110,10 @@ pipeline_msg_handle(struct pipeline_data *p)
 			rsp = pipeline_msg_handle_table_rule_ttl_read(p, req);
 			break;
 
+		case PIPELINE_REQ_TABLE_RULE_TIME_READ:
+			rsp = pipeline_msg_handle_table_rule_time_read(p, req);
+			break;
+
 		default:
 			rsp = (struct pipeline_msg_rsp *) req;
 			rsp->status = -1;
-- 
2.7.4