netdev - [PATCH net-next 4/9] net: ena: convert to use .get_rx_ring

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Message-Id: <20260115-grxring_big_v2-v1-4-b3e1b58bced5@debian.org>
Date: Thu, 15 Jan 2026 06:37:51 -0800
From: Breno Leitao <leitao@...ian.org>
To: Ajit Khaparde <ajit.khaparde@...adcom.com>, 
 Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>, 
 Somnath Kotur <somnath.kotur@...adcom.com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Felix Fietkau <nbd@....name>, Sean Wang <sean.wang@...iatek.com>, 
 Lorenzo Bianconi <lorenzo@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Shay Agroskin <shayagr@...zon.com>, Arthur Kiyanovski <akiyano@...zon.com>, 
 David Arinzon <darinzon@...zon.com>, Saeed Bishara <saeedb@...zon.com>, 
 Bryan Whitehead <bryan.whitehead@...rochip.com>, 
 UNGLinuxDriver@...rochip.com, Shyam Sundar S K <Shyam-sundar.S-k@....com>, 
 Raju Rangoju <Raju.Rangoju@....com>, 
 Potnuri Bharat Teja <bharat@...lsio.com>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Jiawen Wu <jiawenwu@...stnetic.com>, 
 Mengyuan Lou <mengyuanlou@...-swift.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 Breno Leitao <leitao@...ian.org>
Subject: [PATCH net-next 4/9] net: ena: convert to use .get_rx_ring_count

Use the newly introduced .get_rx_ring_count ethtool ops callback instead
of handling ETHTOOL_GRXRINGS directly in .get_rxnfc().

Since ETHTOOL_GRXRINGS was the only useful command handled by
ena_get_rxnfc(), remove the function entirely.

Signed-off-by: Breno Leitao <leitao@...ian.org>
---
 drivers/net/ethernet/amazon/ena/ena_ethtool.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index fe3479b84a1f..2455d6dddc26 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -835,27 +835,11 @@ static int ena_set_rxfh_fields(struct net_device *netdev,
 	return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
 }

-static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
-			 u32 *rules)
+static u32 ena_get_rx_ring_count(struct net_device *netdev)
 {
 	struct ena_adapter *adapter = netdev_priv(netdev);
-	int rc = 0;

-	switch (info->cmd) {
-	case ETHTOOL_GRXRINGS:
-		info->data = adapter->num_io_queues;
-		rc = 0;
-		break;
-	case ETHTOOL_GRXCLSRLCNT:
-	case ETHTOOL_GRXCLSRULE:
-	case ETHTOOL_GRXCLSRLALL:
-	default:
-		netif_err(adapter, drv, netdev,
-			  "Command parameter %d is not supported\n", info->cmd);
-		rc = -EOPNOTSUPP;
-	}
-
-	return rc;
+	return adapter->num_io_queues;
 }

 static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
@@ -1096,7 +1080,7 @@ static const struct ethtool_ops ena_ethtool_ops = {
 	.get_sset_count         = ena_get_sset_count,
 	.get_strings		= ena_get_ethtool_strings,
 	.get_ethtool_stats      = ena_get_ethtool_stats,
-	.get_rxnfc		= ena_get_rxnfc,
+	.get_rx_ring_count	= ena_get_rx_ring_count,
 	.get_rxfh_indir_size    = ena_get_rxfh_indir_size,
 	.get_rxfh_key_size	= ena_get_rxfh_key_size,
 	.get_rxfh		= ena_get_rxfh,

-- 
2.47.3