[PATCH 2/3] app/procinfo: add RSS RETA dump

["Min Hu (Connor)" <humin29@huawei.com>]

This patch add support for RSS reta dump.

The command is like:
dpdk-proc-info -a xxxx:xx:xx.x --file-prefix=xxx -- -- show-rss-reta

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 app/proc-info/main.c | 60 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/app/proc-info/main.c b/app/proc-info/main.c
index d5eff8cf8a..48218d1a88 100644
--- a/app/proc-info/main.c
+++ b/app/proc-info/main.c
@@ -103,6 +103,8 @@ static uint32_t enable_dump_regs;
 static char *dump_regs_file_prefix;
 /**< Enable show version. */
 static uint32_t enable_shw_version;
+/**< Enable show RSS reta. */
+static uint32_t enable_shw_rss_reta;
 
 /**< display usage */
 static void
@@ -131,6 +133,7 @@ proc_info_usage(const char *prgname)
 		"  --show-ring[=name]: to display ring information\n"
 		"  --show-mempool[=name]: to display mempool information\n"
 		"  --show-version: to display DPDK version and firmware version\n"
+		"  --show-rss-reta: to display ports redirection table\n"
 		"  --iter-mempool=name: iterate mempool elements to display content\n"
 		"  --dump-regs=file-prefix: dump registers to file with the file-prefix\n",
 		prgname);
@@ -243,6 +246,7 @@ proc_info_parse_args(int argc, char **argv)
 		{"iter-mempool", required_argument, NULL, 0},
 		{"dump-regs", required_argument, NULL, 0},
 		{"show-version", 0, NULL, 0},
+		{"show-rss-reta", 0, NULL, 0},
 		{NULL, 0, 0, 0}
 	};
 
@@ -314,6 +318,9 @@ proc_info_parse_args(int argc, char **argv)
 			} else if (!strncmp(long_option[option_index].name,
 					"show-version", MAX_LONG_OPT_SZ))
 				enable_shw_version = 1;
+			else if (!strncmp(long_option[option_index].name,
+					"show-rss-reta", MAX_LONG_OPT_SZ))
+				enable_shw_rss_reta = 1;
 			break;
 		case 1:
 			/* Print xstat single value given by name*/
@@ -1486,6 +1493,57 @@ static void show_version(void)
 	}
 }
 
+static void show_port_rss_reta_info(void)
+{
+#define RTE_RETA_CONF_GROUP_NUM 32
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+
+	struct rte_eth_rss_reta_entry64 reta_conf[RTE_RETA_CONF_GROUP_NUM + 1];
+	struct rte_eth_dev_info dev_info;
+	uint16_t i, idx, shift;
+	uint16_t num;
+	uint16_t id;
+	int ret;
+
+	RTE_ETH_FOREACH_DEV(id) {
+		/* Skip if port is not in mask */
+		if ((enabled_port_mask & (1ul << id)) == 0)
+			continue;
+
+		snprintf(bdr_str, MAX_STRING_LEN, " Port %u ", id);
+		STATS_BDR_STR(5, bdr_str);
+
+		if (!rte_eth_dev_is_valid_port(id)) {
+			printf("Error: Invalid port number %u\n", id);
+			continue;
+		}
+
+		ret = rte_eth_dev_info_get(id, &dev_info);
+		if (ret < 0) {
+			printf("get device info fail, ret = %d\n", ret);
+			return;
+		}
+
+		num = DIV_ROUND_UP(dev_info.reta_size, RTE_ETH_RETA_GROUP_SIZE);
+		memset(reta_conf, 0, sizeof(reta_conf));
+		for (i = 0; i < num; i++)
+			reta_conf[i].mask = ~0ULL;
+
+		ret = rte_eth_dev_rss_reta_query(id, reta_conf, dev_info.reta_size);
+		if (ret < 0) {
+			printf("failed to get RSS RETA info, ret = %d\n", ret);
+			return;
+		}
+
+		for (i = 0; i < dev_info.reta_size; i++) {
+			idx = i / RTE_ETH_RETA_GROUP_SIZE;
+			shift = i % RTE_ETH_RETA_GROUP_SIZE;
+			printf("RSS RETA configuration: hash index=%u, queue=%u\n",
+				i, reta_conf[idx].reta[shift]);
+		}
+	}
+}
+
 int
 main(int argc, char **argv)
 {
@@ -1599,6 +1657,8 @@ main(int argc, char **argv)
 		dump_regs(dump_regs_file_prefix);
 	if (enable_shw_version)
 		show_version();
+	if (enable_shw_rss_reta)
+		show_port_rss_reta_info();
 	RTE_ETH_FOREACH_DEV(i)
 		rte_eth_dev_close(i);
 
-- 
2.33.0