[PATCH 7/7] app/flow-perf: add hairpin queue memory config

[Dariusz Sosnowski]

This patch adds the hairpin-conf command line parameter to flow-perf
application. hairpin-conf parameter takes a hexadecimal bitmask with
bits having the following meaning:

- Bit 0 - Force memory settings of hairpin RX queue.
- Bit 1 - Force memory settings of hairpin TX queue.
- Bit 4 - Use locked device memory for hairpin RX queue.
- Bit 5 - Use RTE memory for hairpin RX queue.
- Bit 8 - Use locked device memory for hairpin TX queue.
- Bit 9 - Use RTE memory for hairpin TX queue.

Signed-off-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
---
 app/test-flow-perf/main.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/app/test-flow-perf/main.c b/app/test-flow-perf/main.c
index f375097028..4a9206803a 100644
--- a/app/test-flow-perf/main.c
+++ b/app/test-flow-perf/main.c
@@ -46,6 +46,15 @@
 #define DEFAULT_RULES_BATCH     100000
 #define DEFAULT_GROUP                0
 
+#define HAIRPIN_RX_CONF_FORCE_MEMORY  (0x0001)
+#define HAIRPIN_TX_CONF_FORCE_MEMORY  (0x0002)
+
+#define HAIRPIN_RX_CONF_LOCKED_MEMORY (0x0010)
+#define HAIRPIN_RX_CONF_RTE_MEMORY    (0x0020)
+
+#define HAIRPIN_TX_CONF_LOCKED_MEMORY (0x0100)
+#define HAIRPIN_TX_CONF_RTE_MEMORY    (0x0200)
+
 struct rte_flow *flow;
 static uint8_t flow_group;
 
@@ -61,6 +70,7 @@ static uint32_t policy_id[MAX_PORTS];
 static uint8_t items_idx, actions_idx, attrs_idx;
 
 static uint64_t ports_mask;
+static uint64_t hairpin_conf_mask;
 static uint16_t dst_ports[RTE_MAX_ETHPORTS];
 static volatile bool force_quit;
 static bool dump_iterations;
@@ -482,6 +492,7 @@ usage(char *progname)
 	printf("  --enable-fwd: To enable packets forwarding"
 		" after insertion\n");
 	printf("  --portmask=N: hexadecimal bitmask of ports used\n");
+	printf("  --hairpin-conf=0xXXXX: hexadecimal bitmask of hairpin queue configuration\n");
 	printf("  --random-priority=N,S: use random priority levels "
 		"from 0 to (N - 1) for flows "
 		"and S as seed for pseudo-random number generator\n");
@@ -629,6 +640,7 @@ static void
 args_parse(int argc, char **argv)
 {
 	uint64_t pm, seed;
+	uint64_t hp_conf;
 	char **argvopt;
 	uint32_t prio;
 	char *token;
@@ -648,6 +660,7 @@ args_parse(int argc, char **argv)
 		{ "enable-fwd",                 0, 0, 0 },
 		{ "unique-data",                0, 0, 0 },
 		{ "portmask",                   1, 0, 0 },
+		{ "hairpin-conf",               1, 0, 0 },
 		{ "cores",                      1, 0, 0 },
 		{ "random-priority",            1, 0, 0 },
 		{ "meter-profile-alg",          1, 0, 0 },
@@ -880,6 +893,13 @@ args_parse(int argc, char **argv)
 					rte_exit(EXIT_FAILURE, "Invalid fwd port mask\n");
 				ports_mask = pm;
 			}
+			if (strcmp(lgopts[opt_idx].name, "hairpin-conf") == 0) {
+				end = NULL;
+				hp_conf = strtoull(optarg, &end, 16);
+				if ((optarg[0] == '\0') || (end == NULL) || (*end != '\0'))
+					rte_exit(EXIT_FAILURE, "Invalid hairpin config mask\n");
+				hairpin_conf_mask = hp_conf;
+			}
 			if (strcmp(lgopts[opt_idx].name,
 					"port-id") == 0) {
 				uint16_t port_idx = 0;
@@ -2035,6 +2055,12 @@ init_port(void)
 				hairpin_conf.peers[0].port = port_id;
 				hairpin_conf.peers[0].queue =
 					std_queue + tx_queues_count;
+				hairpin_conf.use_locked_device_memory =
+					!!(hairpin_conf_mask & HAIRPIN_RX_CONF_LOCKED_MEMORY);
+				hairpin_conf.use_rte_memory =
+					!!(hairpin_conf_mask & HAIRPIN_RX_CONF_RTE_MEMORY);
+				hairpin_conf.force_memory =
+					!!(hairpin_conf_mask & HAIRPIN_RX_CONF_FORCE_MEMORY);
 				ret = rte_eth_rx_hairpin_queue_setup(
 						port_id, hairpin_queue,
 						rxd_count, &hairpin_conf);
@@ -2050,6 +2076,12 @@ init_port(void)
 				hairpin_conf.peers[0].port = port_id;
 				hairpin_conf.peers[0].queue =
 					std_queue + rx_queues_count;
+				hairpin_conf.use_locked_device_memory =
+					!!(hairpin_conf_mask & HAIRPIN_TX_CONF_LOCKED_MEMORY);
+				hairpin_conf.use_rte_memory =
+					!!(hairpin_conf_mask & HAIRPIN_TX_CONF_RTE_MEMORY);
+				hairpin_conf.force_memory =
+					!!(hairpin_conf_mask & HAIRPIN_TX_CONF_FORCE_MEMORY);
 				ret = rte_eth_tx_hairpin_queue_setup(
 						port_id, hairpin_queue,
 						txd_count, &hairpin_conf);
-- 
2.25.1