linux-kernel - [PATCH net-next 1/8] i40e: extract GRXRINGS from .get

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Message-Id: <20251124-gxring_intel-v1-1-89be18d2a744@debian.org>
Date: Mon, 24 Nov 2025 10:19:05 -0800
From: Breno Leitao <leitao@...ian.org>
To: aleksander.lobakin@...el.com, Tony Nguyen <anthony.l.nguyen@...el.com>, 
 Przemek Kitszel <przemyslaw.kitszel@...el.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>
Cc: michal.swiatkowski@...ux.intel.com, michal.kubiak@...el.com, 
 maciej.fijalkowski@...el.com, intel-wired-lan@...ts.osuosl.org, 
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org, kernel-team@...a.com, 
 Breno Leitao <leitao@...ian.org>
Subject: [PATCH net-next 1/8] i40e: extract GRXRINGS from .get_rxnfc

Commit 84eaf4359c36 ("net: ethtool: add get_rx_ring_count callback to
optimize RX ring queries") added specific support for GRXRINGS callback,
simplifying .get_rxnfc.

Remove the handling of GRXRINGS in .get_rxnfc() by moving it to the new
.get_rx_ring_count().

This simplifies the RX ring count retrieval and aligns i40e with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@...ian.org>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 86c72596617a..64d0797f5f5e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -3521,6 +3521,20 @@ static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
 	return 0;
 }

+/**
+ * i40e_get_rx_ring_count - get RX ring count
+ * @netdev: network interface device structure
+ *
+ * Returns the number of RX rings.
+ **/
+static u32 i40e_get_rx_ring_count(struct net_device *netdev)
+{
+	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct i40e_vsi *vsi = np->vsi;
+
+	return vsi->rss_size;
+}
+
 /**
  * i40e_get_rxnfc - command to get RX flow classification rules
  * @netdev: network interface device structure
@@ -3538,10 +3552,6 @@ static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 	int ret = -EOPNOTSUPP;

 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = vsi->rss_size;
-		ret = 0;
-		break;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = pf->fdir_pf_active_filters;
 		/* report total rule count */
@@ -5819,6 +5829,7 @@ static const struct ethtool_ops i40e_ethtool_ops = {
 	.set_msglevel		= i40e_set_msglevel,
 	.get_rxnfc		= i40e_get_rxnfc,
 	.set_rxnfc		= i40e_set_rxnfc,
+	.get_rx_ring_count	= i40e_get_rx_ring_count,
 	.self_test		= i40e_diag_test,
 	.get_strings		= i40e_get_strings,
 	.get_eee		= i40e_get_eee,

-- 
2.47.3