[PATCH] net: ti: icssg-prueth: Add phys_port_name support

From: Jan Kiszka
Date: Sun Oct 22 2023 - 04:56:34 EST


From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>

Helps identifying the ports in udev rules e.g.

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---

Seems such logic was lost during the upstream rewrite of the SDK
version.

drivers/net/ethernet/ti/icssg/icssg_prueth.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index 4914d0ef58e9..ffae89a6ccc5 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -1653,6 +1653,19 @@ static void emac_ndo_get_stats64(struct net_device *ndev,
stats->tx_dropped = ndev->stats.tx_dropped;
}

+static int emac_ndo_get_phys_port_name(struct net_device *ndev, char *name,
+ size_t len)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ int ret;
+
+ ret = snprintf(name, len, "p%d", emac->port_id);
+ if (ret >= len)
+ return -EINVAL;
+
+ return 0;
+}
+
static const struct net_device_ops emac_netdev_ops = {
.ndo_open = emac_ndo_open,
.ndo_stop = emac_ndo_stop,
@@ -1663,6 +1676,7 @@ static const struct net_device_ops emac_netdev_ops = {
.ndo_set_rx_mode = emac_ndo_set_rx_mode,
.ndo_eth_ioctl = emac_ndo_ioctl,
.ndo_get_stats64 = emac_ndo_get_stats64,
+ .ndo_get_phys_port_name = emac_ndo_get_phys_port_name,
};

/* get emac_port corresponding to eth_node name */
--
2.35.3