linux-kernel - [net PATCH v1 1/2] octeon_ep: Add support to retrieve hardware channel information

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Message-ID: <20250918112653.29253-2-sedara@marvell.com>
Date: Thu, 18 Sep 2025 04:26:51 -0700
From: Sathesh B Edara <sedara@...vell.com>
To: <linux-kernel@...r.kernel.org>, <sburla@...vell.com>, <vburru@...vell.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>, <hgani@...vell.com>,
        <andrew@...n.ch>, <srasheed@...vell.com>
CC: <sedara@...vell.com>, Andrew Lunn <andrew+netdev@...n.ch>
Subject: [net PATCH v1 1/2] octeon_ep: Add support to retrieve hardware channel information

This patch introduces support for retrieving hardware channel
configuration through the ethtool interface.

Signed-off-by: Sathesh B Edara <sedara@...vell.com>
---
 .../net/ethernet/marvell/octeon_ep/octep_ethtool.c   | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
index a88c006ea65b..9d57e2da0b4b 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c
@@ -437,6 +437,17 @@ static int octep_set_link_ksettings(struct net_device *netdev,
 	return 0;
 }
 
+static void octep_get_channels(struct net_device *dev,
+			       struct ethtool_channels *channel)
+{
+	struct octep_device *oct = netdev_priv(dev);
+
+	channel->max_rx = CFG_GET_PORTS_MAX_IO_RINGS(oct->conf);
+	channel->max_tx = CFG_GET_PORTS_MAX_IO_RINGS(oct->conf);
+	channel->rx_count = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
+	channel->tx_count = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
+}
+
 static const struct ethtool_ops octep_ethtool_ops = {
 	.get_drvinfo = octep_get_drvinfo,
 	.get_link = ethtool_op_get_link,
@@ -445,6 +456,7 @@ static const struct ethtool_ops octep_ethtool_ops = {
 	.get_ethtool_stats = octep_get_ethtool_stats,
 	.get_link_ksettings = octep_get_link_ksettings,
 	.set_link_ksettings = octep_set_link_ksettings,
+	.get_channels = octep_get_channels,
 };
 
 void octep_set_ethtool_ops(struct net_device *netdev)
-- 
2.36.0