[dpdk-dev] [PATCH v4 8/8] 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.

Increase the size of port mask variable to unsigned long to
allow up to 64 ports to be handled on 64 bit architecture.

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

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 app/proc-info/main.c | 94 ++++++++++++++++++++++++++------------------
 1 file changed, 55 insertions(+), 39 deletions(-)

diff --git a/app/proc-info/main.c b/app/proc-info/main.c
index aa074dc7c429..77a59bcefb9b 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>
@@ -46,7 +47,7 @@
 	STATS_BDR_FMT, s, w, STATS_BDR_FMT)
 
 /**< mask of enabled ports */
-static uint32_t enabled_port_mask;
+static unsigned long enabled_port_mask;
 /**< Enable stats. */
 static uint32_t enable_stats;
 /**< Enable xstats. */
@@ -128,23 +129,17 @@ static int
 parse_portmask(const char *portmask)
 {
 	char *end = NULL;
-	unsigned long pm;
 
 	errno = 0;
 
 	/* parse hexadecimal string */
-	pm = strtoul(portmask, &end, 16);
-	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0') ||
-		(errno != 0)) {
-		printf("%s ERROR parsing the port mask\n", __func__);
+	enabled_port_mask = strtoul(portmask, &end, 16);
+	if (portmask[0] == '\0' || end == NULL || *end != '\0' || errno != 0) {
+		fprintf(stderr, "Invalid portmask '%s'\n", portmask);
 		return -1;
 	}
 
-	if (pm == 0)
-		return -1;
-
-	return pm;
-
+	return 0;
 }
 
 /*
@@ -242,9 +237,7 @@ proc_info_parse_args(int argc, char **argv)
 		switch (opt) {
 		/* portmask */
 		case 'p':
-			enabled_port_mask = parse_portmask(optarg);
-			if (enabled_port_mask == 0) {
-				printf("invalid portmask\n");
+			if (parse_portmask(optarg) < 0) {
 				proc_info_usage(prgname);
 				return -1;
 			}
@@ -702,20 +695,28 @@ show_security_context(uint16_t portid)
 static void
 show_port(void)
 {
-	uint16_t i = 0;
-	int ret = 0, j, k;
+	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 (i = 0; i < RTE_MAX_ETHPORTS; 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;
 
+		/* Skip if port is not in mask */
+		if ((enabled_port_mask & (1ul << i)) == 0)
+			continue;
+		
+		/* Skip if port is unused */
+		if (!rte_eth_dev_is_valid_port(i))
+			continue;
+		
 		memset(&rss_conf, 0, sizeof(rss_conf));
 
 		snprintf(bdr_str, MAX_STRING_LEN, " Port %u ", i);
@@ -733,6 +734,11 @@ 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",
@@ -1411,28 +1417,38 @@ 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;
+	/* If no port mask was specified, then show non-owned ports */
+	if (enabled_port_mask == 0) {
+		RTE_ETH_FOREACH_DEV(i)
+			enabled_port_mask = 1ul << i;
+	}
+
+	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+
+		/* Skip if port is not in mask */
+		if ((enabled_port_mask & (1ul << i)) == 0)
+			continue;
+		
+		/* Skip if port is unused */
+		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);
 
-	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);
-		}
 	}
 
 	/* print port independent stats */
-- 
2.27.0