[dpdk-dev] [PATCH v2 7/7] app/proc-info: provide way to request info on owned ports

[Stephen Hemminger <stephen@networkplumber.org>]

There are cases where a port maybe owned by another (failsafe, netvsc,
bond); but currently proc-info has no way to look at stats of those
ports. This patch provides way for the user to explicitly ask for these
ports.

If no portmask is given the output is unchanged; it only shows the
top level ports. If portmask requests a specific port it will be
shown even if owned.

The device owner is also a useful thing to show in port info.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/proc-info/Makefile |  3 ++
 app/proc-info/main.c   | 74 ++++++++++++++++++++++++++++--------------
 2 files changed, 53 insertions(+), 24 deletions(-)

diff --git a/app/proc-info/Makefile b/app/proc-info/Makefile
index 214f3f54a1e9..f777e037861f 100644
--- a/app/proc-info/Makefile
+++ b/app/proc-info/Makefile
@@ -5,7 +5,10 @@ include $(RTE_SDK)/mk/rte.vars.mk
 
 APP = dpdk-procinfo
 
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -Wno-deprecated-declarations
 
 # all source are stored in SRCS-y
 
diff --git a/app/proc-info/main.c b/app/proc-info/main.c
index 00e06c986e27..e0b61b366312 100644
--- a/app/proc-info/main.c
+++ b/app/proc-info/main.c
@@ -12,6 +12,7 @@
 #include <stdlib.h>
 #include <getopt.h>
 #include <unistd.h>
+#include <strings.h>
 
 #include <rte_eal.h>
 #include <rte_common.h>
@@ -676,19 +677,26 @@ eth_tx_queue_available(uint16_t port_id, uint16_t queue_id, uint16_t n)
 static void
 show_port(void)
 {
-	uint16_t i = 0;
-	int ret = 0, j, k;
+	uint32_t port_mask = enabled_port_mask;
+	int i, ret, j, k;
 
 	snprintf(bdr_str, MAX_STRING_LEN, " show - Port PMD ");
 	STATS_BDR_STR(10, bdr_str);
 
-	RTE_ETH_FOREACH_DEV(i) {
+	for (port_mask = enabled_port_mask; port_mask != 0;
+	     port_mask &= ~(1u << i)) {
 		uint16_t mtu = 0;
 		struct rte_eth_link link;
 		struct rte_eth_dev_info dev_info;
 		struct rte_eth_rss_conf rss_conf;
 		struct rte_eth_fc_conf fc_conf;
 		struct rte_ether_addr mac;
+		struct rte_eth_dev_owner owner;
+
+		i = ffs(port_mask) - 1;
+
+		if (!rte_eth_dev_is_valid_port(i))
+			continue;
 
 		memset(&rss_conf, 0, sizeof(rss_conf));
 
@@ -707,6 +715,11 @@ show_port(void)
 		       dev_info.driver_name, dev_info.device->name,
 		       rte_eth_dev_socket_id(i));
 
+		ret = rte_eth_dev_owner_get(i, &owner);
+		if (ret == 0 && owner.id != RTE_ETH_DEV_NO_OWNER)
+			printf("\t --  owner %#"PRIx64":%s\n",
+			       owner.id, owner.name);
+
 		ret = rte_eth_link_get(i, &link);
 		if (ret < 0) {
 			printf("Link get failed (port %u): %s\n",
@@ -1342,6 +1355,7 @@ main(int argc, char **argv)
 	char log_flag[] = "--log-level=6";
 	char *argp[argc + 4];
 	uint16_t nb_ports;
+	uint32_t port_mask;
 
 	/* preparse app arguments */
 	ret = proc_info_preparse_args(argc, argv);
@@ -1385,30 +1399,42 @@ main(int argc, char **argv)
 	if (nb_ports == 0)
 		rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 
-	/* If no port mask was specified*/
-	if (enabled_port_mask == 0)
-		enabled_port_mask = 0xffff;
-
-	RTE_ETH_FOREACH_DEV(i) {
-		if (enabled_port_mask & (1 << i)) {
-			if (enable_stats)
-				nic_stats_display(i);
-			else if (enable_xstats)
-				nic_xstats_display(i);
-			else if (reset_stats)
-				nic_stats_clear(i);
-			else if (reset_xstats)
-				nic_xstats_clear(i);
-			else if (enable_xstats_name)
-				nic_xstats_by_name_display(i, xstats_name);
-			else if (nb_xstats_ids > 0)
-				nic_xstats_by_ids_display(i, xstats_ids,
-						nb_xstats_ids);
-			else if (enable_metrics)
-				metrics_display(i);
+	/* If no port mask was specified, one will be provided */
+	if (enabled_port_mask == 0) {
+		RTE_ETH_FOREACH_DEV(i) {
+			enabled_port_mask |= 1u << i;
 		}
 	}
 
+	for (port_mask = enabled_port_mask; port_mask != 0;
+	     port_mask &= ~(1u << i)) {
+		/* ffs() first bit is 1 not 0 */
+		i = ffs(port_mask) - 1;
+
+		if (i >= RTE_MAX_ETHPORTS)
+			break;
+
+		if (!rte_eth_dev_is_valid_port(i))
+			continue;
+
+		if (enable_stats)
+			nic_stats_display(i);
+		else if (enable_xstats)
+			nic_xstats_display(i);
+		else if (reset_stats)
+			nic_stats_clear(i);
+		else if (reset_xstats)
+			nic_xstats_clear(i);
+		else if (enable_xstats_name)
+			nic_xstats_by_name_display(i, xstats_name);
+		else if (nb_xstats_ids > 0)
+			nic_xstats_by_ids_display(i, xstats_ids,
+						  nb_xstats_ids);
+		else if (enable_metrics)
+			metrics_display(i);
+
+	}
+
 	/* print port independent stats */
 	if (enable_metrics)
 		metrics_display(RTE_METRICS_GLOBAL);
-- 
2.20.1