[dpdk-dev] [PATCH v2 53/54] examples/ethtool: check status of getting ethdev info

[Andrew Rybchenko]

From: Ivan Ilchenko <Ivan.Ilchenko at oktetlabs.com>

rte_eth_dev_info_get() return value was changed from void to
int, so this patch modify rte_eth_dev_info_get() usage across
examples/ethtool according to its new return type.

Signed-off-by: Ivan Ilchenko <Ivan.Ilchenko at oktetlabs.com>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 examples/ethtool/ethtool-app/main.c |  8 +++++++-
 examples/ethtool/lib/rte_ethtool.c  | 19 ++++++++++++++++---
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/examples/ethtool/ethtool-app/main.c b/examples/ethtool/ethtool-app/main.c
index 3d2a70d..774df7e 100644
--- a/examples/ethtool/ethtool-app/main.c
+++ b/examples/ethtool/ethtool-app/main.c
@@ -95,6 +95,7 @@ static void setup_ports(struct app_config *app_cfg, int cnt_ports)
 	char str_name[16];
 	uint16_t nb_rxd = PORT_RX_QUEUE_SIZE;
 	uint16_t nb_txd = PORT_TX_QUEUE_SIZE;
+	int ret;
 
 	memset(&cfg_port, 0, sizeof(cfg_port));
 	cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE;
@@ -102,7 +103,12 @@ static void setup_ports(struct app_config *app_cfg, int cnt_ports)
 	for (idx_port = 0; idx_port < cnt_ports; idx_port++) {
 		struct app_port *ptr_port = &app_cfg->ports[idx_port];
 
-		rte_eth_dev_info_get(idx_port, &dev_info);
+		ret = rte_eth_dev_info_get(idx_port, &dev_info);
+		if (ret != 0)
+			rte_exit(EXIT_FAILURE,
+				"Error during getting device (port %u) info: %s\n",
+				idx_port, strerror(-ret));
+
 		size_pktpool = dev_info.rx_desc_lim.nb_max +
 			dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE;
 
diff --git a/examples/ethtool/lib/rte_ethtool.c b/examples/ethtool/lib/rte_ethtool.c
index fd1692d..43cacc0 100644
--- a/examples/ethtool/lib/rte_ethtool.c
+++ b/examples/ethtool/lib/rte_ethtool.c
@@ -41,7 +41,13 @@
 		printf("Insufficient fw version buffer size, "
 		       "the minimum size should be %d\n", ret);
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0) {
+		printf("Error during getting device (port %u) info: %s\n",
+		       port_id, strerror(-ret));
+
+		return ret;
+	}
 
 	strlcpy(drvinfo->driver, dev_info.driver_name,
 		sizeof(drvinfo->driver));
@@ -370,8 +376,12 @@
 	uint16_t num_vfs;
 	struct rte_eth_dev_info dev_info;
 	uint16_t vf;
+	int ret;
+
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0)
+		return ret;
 
-	rte_eth_dev_info_get(port_id, &dev_info);
 	num_vfs = dev_info.max_vfs;
 
 	/* Set VF vf_rx_mode, VF unsupport status is discard */
@@ -397,11 +407,14 @@
 	struct rte_eth_rxq_info rx_qinfo;
 	struct rte_eth_txq_info tx_qinfo;
 	int stat;
+	int ret;
 
 	if (ring_param == NULL)
 		return -EINVAL;
 
-	rte_eth_dev_info_get(port_id, &dev_info);
+	ret = rte_eth_dev_info_get(port_id, &dev_info);
+	if (ret != 0)
+		return ret;
 
 	stat = rte_eth_rx_queue_info_get(port_id, 0, &rx_qinfo);
 	if (stat != 0)
-- 
1.8.3.1