From: Thomas Monjalon <thomas@monjalon.net>
Date: Mon, 1 Apr 2019 02:26:59 +0000 (+0200)
Subject: net/mlx5: use port sibling iterators
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=d874a4eed5b6ed3380637089f5e2f0ba04d58eb5;p=dpdk.git

net/mlx5: use port sibling iterators

Iterating over siblings was done with RTE_ETH_FOREACH_DEV()
which skips the owned ports.
The new iterators RTE_ETH_FOREACH_DEV_SIBLING()
and RTE_ETH_FOREACH_DEV_OF() are more appropriate and more correct.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Tested-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
---

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 40445056f5..61519c4e82 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -540,17 +540,15 @@ mlx5_dev_close(struct rte_eth_dev *dev)
 			dev->data->port_id);
 	if (priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
 		unsigned int c = 0;
-		unsigned int i = mlx5_dev_to_port_id(dev->device, NULL, 0);
-		uint16_t port_id[i];
+		uint16_t port_id;
 
-		i = RTE_MIN(mlx5_dev_to_port_id(dev->device, port_id, i), i);
-		while (i--) {
+		RTE_ETH_FOREACH_DEV_OF(port_id, dev->device) {
 			struct mlx5_priv *opriv =
-				rte_eth_devices[port_id[i]].data->dev_private;
+				rte_eth_devices[port_id].data->dev_private;
 
 			if (!opriv ||
 			    opriv->domain_id != priv->domain_id ||
-			    &rte_eth_devices[port_id[i]] == dev)
+			    &rte_eth_devices[port_id] == dev)
 				continue;
 			++c;
 		}
@@ -1273,22 +1271,16 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
 	 * Look for sibling devices in order to reuse their switch domain
 	 * if any, otherwise allocate one.
 	 */
-	i = mlx5_dev_to_port_id(dpdk_dev, NULL, 0);
-	if (i > 0) {
-		uint16_t port_id[i];
-
-		i = RTE_MIN(mlx5_dev_to_port_id(dpdk_dev, port_id, i), i);
-		while (i--) {
-			const struct mlx5_priv *opriv =
-				rte_eth_devices[port_id[i]].data->dev_private;
+	RTE_ETH_FOREACH_DEV_OF(port_id, dpdk_dev) {
+		const struct mlx5_priv *opriv =
+			rte_eth_devices[port_id].data->dev_private;
 
-			if (!opriv ||
-			    opriv->domain_id ==
-			    RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
-				continue;
-			priv->domain_id = opriv->domain_id;
-			break;
-		}
+		if (!opriv ||
+			opriv->domain_id ==
+			RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
+			continue;
+		priv->domain_id = opriv->domain_id;
+		break;
 	}
 	if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
 		err = rte_eth_switch_domain_alloc(&priv->domain_id);
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index aab8e676c9..9ae9dddd3c 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -1364,11 +1364,7 @@ mlx5_dev_to_port_id(const struct rte_device *dev, uint16_t *port_list,
 	uint16_t id;
 	unsigned int n = 0;
 
-	RTE_ETH_FOREACH_DEV(id) {
-		struct rte_eth_dev *ldev = &rte_eth_devices[id];
-
-		if (ldev->device != dev)
-			continue;
+	RTE_ETH_FOREACH_DEV_OF(id, dev) {
 		if (n < port_list_n)
 			port_list[n] = id;
 		n++;