From 4f661ccfcac70f3838f7e5ca53ac51c86e1acbb1 Mon Sep 17 00:00:00 2001
From: Gerhard Engleder <gerhard@engleder-embedded.com>
Date: Wed, 30 Nov 2022 20:37:06 +0100
Subject: [PATCH] tsnep: Add ethtool::get_channels support
Allow user space to read number of TX and RX queue. This is useful for
device dependent qdisc configurations like TAPRIO with hardware offload.
Also ethtool::get_per_queue_coalesce / set_per_queue_coalesce requires
that interface.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/engleder/tsnep_ethtool.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/net/ethernet/engleder/tsnep_ethtool.c b/drivers/net/ethernet/engleder/tsnep_ethtool.c
index c2640e88f3476..517ac8de32bb1 100644
--- a/drivers/net/ethernet/engleder/tsnep_ethtool.c
+++ b/drivers/net/ethernet/engleder/tsnep_ethtool.c
@@ -288,6 +288,17 @@ static int tsnep_ethtool_set_rxnfc(struct net_device *netdev,
}
}
+static void tsnep_ethtool_get_channels(struct net_device *netdev,
+ struct ethtool_channels *ch)
+{
+ struct tsnep_adapter *adapter = netdev_priv(netdev);
+
+ ch->max_rx = adapter->num_rx_queues;
+ ch->max_tx = adapter->num_tx_queues;
+ ch->rx_count = adapter->num_rx_queues;
+ ch->tx_count = adapter->num_tx_queues;
+}
+
static int tsnep_ethtool_get_ts_info(struct net_device *netdev,
struct ethtool_ts_info *info)
{
@@ -327,6 +338,7 @@ const struct ethtool_ops tsnep_ethtool_ops = {
.get_sset_count = tsnep_ethtool_get_sset_count,
.get_rxnfc = tsnep_ethtool_get_rxnfc,
.set_rxnfc = tsnep_ethtool_set_rxnfc,
+ .get_channels = tsnep_ethtool_get_channels,
.get_ts_info = tsnep_ethtool_get_ts_info,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
--
2.30.2