[PATCH net-next 0/8] net: intel: migrate to .get_rx_ring_count() ethtool callback

[PATCH net-next 0/8] net: intel: migrate to .get_rx_ring_count() ethtool callback

[Breno Leitao]

This series migrates Intel network drivers to use the new .get_rx_ring_count()
ethtool callback introduced in commit 84eaf4359c36 ("net: ethtool: add
get_rx_ring_count callback to optimize RX ring queries").

The new callback simplifies the .get_rxnfc() implementation by removing
ETHTOOL_GRXRINGS handling and moving it to a dedicated callback. This provides
a cleaner separation of concerns and aligns these drivers with the modern
ethtool API.

The series updates the following Intel drivers:
  - idpf
  - igb
  - igc
  - ixgbevf
  - fm10k

PS: These changes were compile-tested only.

---
Breno Leitao (8):
      i40e: extract GRXRINGS from .get_rxnfc
      iavf: extract GRXRINGS from .get_rxnfc
      ice: extract GRXRINGS from .get_rxnfc
      idpf: extract GRXRINGS from .get_rxnfc
      igb: extract GRXRINGS from .get_rxnfc
      igc: extract GRXRINGS from .get_rxnfc
      ixgbevf: extract GRXRINGS from .get_rxnfc
      fm10k: extract GRXRINGS from .get_rxnfc

 drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 17 +++--------------
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c   | 19 +++++++++++++++----
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c   | 18 ++++++++++++++----
 drivers/net/ethernet/intel/ice/ice_ethtool.c     | 19 +++++++++++++++----
 drivers/net/ethernet/intel/idpf/idpf_ethtool.c   | 23 ++++++++++++++++++++---
 drivers/net/ethernet/intel/igb/igb_ethtool.c     | 12 ++++++++----
 drivers/net/ethernet/intel/igc/igc_ethtool.c     | 11 ++++++++---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c     | 14 +++-----------
 8 files changed, 86 insertions(+), 47 deletions(-)
---
base-commit: e05021a829b834fecbd42b173e55382416571b2c
change-id: 20251124-gxring_intel-e1a94c484b78

Best regards,
--  
Breno Leitao <leitao@debian.org>

[PATCH net-next 1/8] i40e: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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@debian.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

[PATCH net-next 2/8] iavf: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 iavf with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index a3f8ced23266..08ff90e73803 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -1638,6 +1638,19 @@ static int iavf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
 	return ret;
 }
 
+/**
+ * iavf_get_rx_ring_count - get RX ring count
+ * @netdev: network interface device structure
+ *
+ * Returns the number of RX rings.
+ **/
+static u32 iavf_get_rx_ring_count(struct net_device *netdev)
+{
+	struct iavf_adapter *adapter = netdev_priv(netdev);
+
+	return adapter->num_active_queues;
+}
+
 /**
  * iavf_get_rxnfc - command to get RX flow classification rules
  * @netdev: network interface device structure
@@ -1653,10 +1666,6 @@ static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 	int ret = -EOPNOTSUPP;
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = adapter->num_active_queues;
-		ret = 0;
-		break;
 	case ETHTOOL_GRXCLSRLCNT:
 		if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
 			break;
@@ -1866,6 +1875,7 @@ static const struct ethtool_ops iavf_ethtool_ops = {
 	.set_per_queue_coalesce = iavf_set_per_queue_coalesce,
 	.set_rxnfc		= iavf_set_rxnfc,
 	.get_rxnfc		= iavf_get_rxnfc,
+	.get_rx_ring_count	= iavf_get_rx_ring_count,
 	.get_rxfh_indir_size	= iavf_get_rxfh_indir_size,
 	.get_rxfh		= iavf_get_rxfh,
 	.set_rxfh		= iavf_set_rxfh,

-- 
2.47.3

[PATCH net-next 3/8] ice: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 ice with the new
ethtool API for querying RX ring parameters.

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

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index a1d9abee97e5..adb6e10ccb1b 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -3083,6 +3083,20 @@ static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
 	return -EOPNOTSUPP;
 }
 
+/**
+ * ice_get_rx_ring_count - get RX ring count
+ * @netdev: network interface device structure
+ *
+ * Returns the number of RX rings.
+ */
+static u32 ice_get_rx_ring_count(struct net_device *netdev)
+{
+	struct ice_netdev_priv *np = netdev_priv(netdev);
+	struct ice_vsi *vsi = np->vsi;
+
+	return vsi->rss_size;
+}
+
 /**
  * ice_get_rxnfc - command to get Rx flow classification rules
  * @netdev: network interface device structure
@@ -3103,10 +3117,6 @@ ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 	hw = &vsi->back->hw;
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = vsi->rss_size;
-		ret = 0;
-		break;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = hw->fdir_active_fltr;
 		/* report total rule count */
@@ -4853,6 +4863,7 @@ static const struct ethtool_ops ice_ethtool_ops = {
 	.get_sset_count		= ice_get_sset_count,
 	.get_rxnfc		= ice_get_rxnfc,
 	.set_rxnfc		= ice_set_rxnfc,
+	.get_rx_ring_count	= ice_get_rx_ring_count,
 	.get_ringparam		= ice_get_ringparam,
 	.set_ringparam		= ice_set_ringparam,
 	.nway_reset		= ice_nway_reset,

-- 
2.47.3

[PATCH net-next 4/8] idpf: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 idpf with the new
ethtool API for querying RX ring parameters.

I was not totatly convinced I needed to have the lock, but, I decided to
be on the safe side and get the exact same behaviour it was before.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/idpf/idpf_ethtool.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
index a5a1eec9ade8..1b21747b8b13 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
@@ -5,6 +5,25 @@
 #include "idpf_ptp.h"
 #include "idpf_virtchnl.h"
 
+/**
+ * idpf_get_rx_ring_count - get RX ring count
+ * @netdev: network interface device structure
+ *
+ * Returns the number of RX rings.
+ */
+static u32 idpf_get_rx_ring_count(struct net_device *netdev)
+{
+	struct idpf_vport *vport;
+	u32 num_rxq;
+
+	idpf_vport_ctrl_lock(netdev);
+	vport = idpf_netdev_to_vport(netdev);
+	num_rxq = vport->num_rxq;
+	idpf_vport_ctrl_unlock(netdev);
+
+	return num_rxq;
+}
+
 /**
  * idpf_get_rxnfc - command to get RX flow classification rules
  * @netdev: network interface device structure
@@ -28,9 +47,6 @@ static int idpf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 	user_config = &np->adapter->vport_config[np->vport_idx]->user_config;
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = vport->num_rxq;
-		break;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = user_config->num_fsteer_fltrs;
 		cmd->data = idpf_fsteer_max_rules(vport);
@@ -1757,6 +1773,7 @@ static const struct ethtool_ops idpf_ethtool_ops = {
 	.get_channels		= idpf_get_channels,
 	.get_rxnfc		= idpf_get_rxnfc,
 	.set_rxnfc		= idpf_set_rxnfc,
+	.get_rx_ring_count	= idpf_get_rx_ring_count,
 	.get_rxfh_key_size	= idpf_get_rxfh_key_size,
 	.get_rxfh_indir_size	= idpf_get_rxfh_indir_size,
 	.get_rxfh		= idpf_get_rxfh,

-- 
2.47.3

[PATCH net-next 5/8] igb: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 igb with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 10e2445e0ded..b507576b28b2 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2541,6 +2541,13 @@ static int igb_get_rxfh_fields(struct net_device *dev,
 	return 0;
 }
 
+static u32 igb_get_rx_ring_count(struct net_device *dev)
+{
+	struct igb_adapter *adapter = netdev_priv(dev);
+
+	return adapter->num_rx_queues;
+}
+
 static int igb_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 			 u32 *rule_locs)
 {
@@ -2548,10 +2555,6 @@ static int igb_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 	int ret = -EOPNOTSUPP;
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = adapter->num_rx_queues;
-		ret = 0;
-		break;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = adapter->nfc_filter_count;
 		ret = 0;
@@ -3473,6 +3476,7 @@ static const struct ethtool_ops igb_ethtool_ops = {
 	.get_ts_info		= igb_get_ts_info,
 	.get_rxnfc		= igb_get_rxnfc,
 	.set_rxnfc		= igb_set_rxnfc,
+	.get_rx_ring_count	= igb_get_rx_ring_count,
 	.get_eee		= igb_get_eee,
 	.set_eee		= igb_set_eee,
 	.get_module_info	= igb_get_module_info,

-- 
2.47.3

[PATCH net-next 6/8] igc: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 igc with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/igc/igc_ethtool.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index bb783042d1af..e94c1922b97a 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -1091,15 +1091,19 @@ static int igc_ethtool_get_rxfh_fields(struct net_device *dev,
 	return 0;
 }
 
+static u32 igc_ethtool_get_rx_ring_count(struct net_device *dev)
+{
+	struct igc_adapter *adapter = netdev_priv(dev);
+
+	return adapter->num_rx_queues;
+}
+
 static int igc_ethtool_get_rxnfc(struct net_device *dev,
 				 struct ethtool_rxnfc *cmd, u32 *rule_locs)
 {
 	struct igc_adapter *adapter = netdev_priv(dev);
 
 	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = adapter->num_rx_queues;
-		return 0;
 	case ETHTOOL_GRXCLSRLCNT:
 		cmd->rule_cnt = adapter->nfc_rule_count;
 		return 0;
@@ -2170,6 +2174,7 @@ static const struct ethtool_ops igc_ethtool_ops = {
 	.set_coalesce		= igc_ethtool_set_coalesce,
 	.get_rxnfc		= igc_ethtool_get_rxnfc,
 	.set_rxnfc		= igc_ethtool_set_rxnfc,
+	.get_rx_ring_count	= igc_ethtool_get_rx_ring_count,
 	.get_rxfh_indir_size	= igc_ethtool_get_rxfh_indir_size,
 	.get_rxfh		= igc_ethtool_get_rxfh,
 	.set_rxfh		= igc_ethtool_set_rxfh,

-- 
2.47.3

[PATCH net-next 7/8] ixgbevf: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 ixgbevf with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index bebad564188e..537a60d5276f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -867,19 +867,11 @@ static int ixgbevf_set_coalesce(struct net_device *netdev,
 	return 0;
 }
 
-static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
-			     u32 *rules __always_unused)
+static u32 ixgbevf_get_rx_ring_count(struct net_device *dev)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(dev);
 
-	switch (info->cmd) {
-	case ETHTOOL_GRXRINGS:
-		info->data = adapter->num_rx_queues;
-		return 0;
-	default:
-		hw_dbg(&adapter->hw, "Command parameters not supported\n");
-		return -EOPNOTSUPP;
-	}
+	return adapter->num_rx_queues;
 }
 
 static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev)
@@ -987,7 +979,7 @@ static const struct ethtool_ops ixgbevf_ethtool_ops = {
 	.get_ethtool_stats	= ixgbevf_get_ethtool_stats,
 	.get_coalesce		= ixgbevf_get_coalesce,
 	.set_coalesce		= ixgbevf_set_coalesce,
-	.get_rxnfc		= ixgbevf_get_rxnfc,
+	.get_rx_ring_count	= ixgbevf_get_rx_ring_count,
 	.get_rxfh_indir_size	= ixgbevf_get_rxfh_indir_size,
 	.get_rxfh_key_size	= ixgbevf_get_rxfh_key_size,
 	.get_rxfh		= ixgbevf_get_rxfh,

-- 
2.47.3

[PATCH net-next 8/8] fm10k: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

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 fm10k with the new
ethtool API for querying RX ring parameters.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index bf2029144c1d..76e42abca965 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -734,22 +734,11 @@ static int fm10k_get_rssh_fields(struct net_device *dev,
 	return 0;
 }
 
-static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
-			   u32 __always_unused *rule_locs)
+static u32 fm10k_get_rx_ring_count(struct net_device *dev)
 {
 	struct fm10k_intfc *interface = netdev_priv(dev);
-	int ret = -EOPNOTSUPP;
 
-	switch (cmd->cmd) {
-	case ETHTOOL_GRXRINGS:
-		cmd->data = interface->num_rx_queues;
-		ret = 0;
-		break;
-	default:
-		break;
-	}
-
-	return ret;
+	return interface->num_rx_queues;
 }
 
 static int fm10k_set_rssh_fields(struct net_device *dev,
@@ -1160,7 +1149,7 @@ static const struct ethtool_ops fm10k_ethtool_ops = {
 	.set_ringparam		= fm10k_set_ringparam,
 	.get_coalesce		= fm10k_get_coalesce,
 	.set_coalesce		= fm10k_set_coalesce,
-	.get_rxnfc		= fm10k_get_rxnfc,
+	.get_rx_ring_count	= fm10k_get_rx_ring_count,
 	.get_regs               = fm10k_get_regs,
 	.get_regs_len           = fm10k_get_regs_len,
 	.self_test		= fm10k_self_test,

-- 
2.47.3

Re: [PATCH net-next 1/8] i40e: extract GRXRINGS from .get_rxnfc

[Jakub Kicinski]

On Mon, 24 Nov 2025 10:19:05 -0800 Breno Leitao wrote:
> + * Returns the number of RX rings.

I suspect you used this format because the rest of the driver does,
but let's avoid adding new kdoc warnings. I think Andy is trying
to clean up the "Returns" vs "Return:" in Intel drivers..

 drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3530 No description found for return value of 'i40e_get_rx_ring_count'

(similar warnings to first 4 patches of the series)
-- 
pw-bot: cr

RE: [Intel-wired-lan] [PATCH net-next 4/8] idpf: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 4/8] idpf: 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 idpf with the
> new ethtool API for querying RX ring parameters.
> 
> I was not totatly convinced I needed to have the lock, but, I decided

totatly -> totally

With the best regards
Alex

...

RE: [Intel-wired-lan] [PATCH net-next 7/8] ixgbevf: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 7/8] ixgbevf: 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 ixgbevf with
> the new ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/ixgbevf/ethtool.c | 14 +++-----------
>  1 file changed, 3 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
> b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
> index bebad564188e..537a60d5276f 100644
> --- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
> +++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
> @@ -867,19 +867,11 @@ static int ixgbevf_set_coalesce(struct
> net_device *netdev,
>  	return 0;
>  }
> 
> -static int ixgbevf_get_rxnfc(struct net_device *dev, struct
> ethtool_rxnfc *info,
> -			     u32 *rules __always_unused)
> +static u32 ixgbevf_get_rx_ring_count(struct net_device *dev)
>  {
>  	struct ixgbevf_adapter *adapter = netdev_priv(dev);
> 
> -	switch (info->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		info->data = adapter->num_rx_queues;
> -		return 0;
> -	default:
> -		hw_dbg(&adapter->hw, "Command parameters not
> supported\n");
> -		return -EOPNOTSUPP;
> -	}
> +	return adapter->num_rx_queues;
>  }
> 
>  static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev) @@
> -987,7 +979,7 @@ static const struct ethtool_ops ixgbevf_ethtool_ops =
> {
>  	.get_ethtool_stats	= ixgbevf_get_ethtool_stats,
>  	.get_coalesce		= ixgbevf_get_coalesce,
>  	.set_coalesce		= ixgbevf_set_coalesce,
> -	.get_rxnfc		= ixgbevf_get_rxnfc,
> +	.get_rx_ring_count	= ixgbevf_get_rx_ring_count,
>  	.get_rxfh_indir_size	= ixgbevf_get_rxfh_indir_size,
>  	.get_rxfh_key_size	= ixgbevf_get_rxfh_key_size,
>  	.get_rxfh		= ixgbevf_get_rxfh,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 8/8] fm10k: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 8/8] fm10k: 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 fm10k with the
> new ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 17 +++------------
> --
>  1 file changed, 3 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
> b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
> index bf2029144c1d..76e42abca965 100644
> --- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
> +++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
> @@ -734,22 +734,11 @@ static int fm10k_get_rssh_fields(struct
> net_device *dev,
>  	return 0;
>  }
> 
> -static int fm10k_get_rxnfc(struct net_device *dev, struct
> ethtool_rxnfc *cmd,
> -			   u32 __always_unused *rule_locs)
> +static u32 fm10k_get_rx_ring_count(struct net_device *dev)
>  {
>  	struct fm10k_intfc *interface = netdev_priv(dev);
> -	int ret = -EOPNOTSUPP;
> 
> -	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = interface->num_rx_queues;
> -		ret = 0;
> -		break;
> -	default:
> -		break;
> -	}
> -
> -	return ret;
> +	return interface->num_rx_queues;
>  }
> 
>  static int fm10k_set_rssh_fields(struct net_device *dev, @@ -1160,7
> +1149,7 @@ static const struct ethtool_ops fm10k_ethtool_ops = {
>  	.set_ringparam		= fm10k_set_ringparam,
>  	.get_coalesce		= fm10k_get_coalesce,
>  	.set_coalesce		= fm10k_set_coalesce,
> -	.get_rxnfc		= fm10k_get_rxnfc,
> +	.get_rx_ring_count	= fm10k_get_rx_ring_count,
>  	.get_regs               = fm10k_get_regs,
>  	.get_regs_len           = fm10k_get_regs_len,
>  	.self_test		= fm10k_self_test,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 5/8] igb: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 5/8] igb: 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 igb with the
> new ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/igb/igb_ethtool.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c
> b/drivers/net/ethernet/intel/igb/igb_ethtool.c
> index 10e2445e0ded..b507576b28b2 100644
> --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
> +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
> @@ -2541,6 +2541,13 @@ static int igb_get_rxfh_fields(struct
> net_device *dev,
>  	return 0;
>  }
> 
> +static u32 igb_get_rx_ring_count(struct net_device *dev) {
> +	struct igb_adapter *adapter = netdev_priv(dev);
> +
> +	return adapter->num_rx_queues;
> +}
> +
>  static int igb_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc
> *cmd,
>  			 u32 *rule_locs)
>  {
> @@ -2548,10 +2555,6 @@ static int igb_get_rxnfc(struct net_device
> *dev, struct ethtool_rxnfc *cmd,
>  	int ret = -EOPNOTSUPP;
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = adapter->num_rx_queues;
> -		ret = 0;
> -		break;
>  	case ETHTOOL_GRXCLSRLCNT:
>  		cmd->rule_cnt = adapter->nfc_filter_count;
>  		ret = 0;
> @@ -3473,6 +3476,7 @@ static const struct ethtool_ops igb_ethtool_ops
> = {
>  	.get_ts_info		= igb_get_ts_info,
>  	.get_rxnfc		= igb_get_rxnfc,
>  	.set_rxnfc		= igb_set_rxnfc,
> +	.get_rx_ring_count	= igb_get_rx_ring_count,
>  	.get_eee		= igb_get_eee,
>  	.set_eee		= igb_set_eee,
>  	.get_module_info	= igb_get_module_info,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 6/8] igc: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 6/8] igc: 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 igc with the
> new ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/igc/igc_ethtool.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c
> b/drivers/net/ethernet/intel/igc/igc_ethtool.c
> index bb783042d1af..e94c1922b97a 100644
> --- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
> +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
> @@ -1091,15 +1091,19 @@ static int igc_ethtool_get_rxfh_fields(struct
> net_device *dev,
>  	return 0;
>  }
> 
> +static u32 igc_ethtool_get_rx_ring_count(struct net_device *dev) {
> +	struct igc_adapter *adapter = netdev_priv(dev);
> +
> +	return adapter->num_rx_queues;
> +}
> +
>  static int igc_ethtool_get_rxnfc(struct net_device *dev,
>  				 struct ethtool_rxnfc *cmd, u32 *rule_locs)
> {
>  	struct igc_adapter *adapter = netdev_priv(dev);
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = adapter->num_rx_queues;
> -		return 0;
>  	case ETHTOOL_GRXCLSRLCNT:
>  		cmd->rule_cnt = adapter->nfc_rule_count;
>  		return 0;
> @@ -2170,6 +2174,7 @@ static const struct ethtool_ops igc_ethtool_ops
> = {
>  	.set_coalesce		= igc_ethtool_set_coalesce,
>  	.get_rxnfc		= igc_ethtool_get_rxnfc,
>  	.set_rxnfc		= igc_ethtool_set_rxnfc,
> +	.get_rx_ring_count	= igc_ethtool_get_rx_ring_count,
>  	.get_rxfh_indir_size	= igc_ethtool_get_rxfh_indir_size,
>  	.get_rxfh		= igc_ethtool_get_rxfh,
>  	.set_rxfh		= igc_ethtool_set_rxfh,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 4/8] idpf: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 4/8] idpf: 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 idpf with the
> new ethtool API for querying RX ring parameters.
> 
> I was not totatly convinced I needed to have the lock, but, I decided
> to be on the safe side and get the exact same behaviour it was before.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/idpf/idpf_ethtool.c | 23
> ++++++++++++++++++++---
>  1 file changed, 20 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
> b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
> index a5a1eec9ade8..1b21747b8b13 100644
> --- a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
> +++ b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
> @@ -5,6 +5,25 @@
>  #include "idpf_ptp.h"
>  #include "idpf_virtchnl.h"
> 
> +/**
> + * idpf_get_rx_ring_count - get RX ring count
> + * @netdev: network interface device structure
> + *
> + * Returns the number of RX rings.
> + */
> +static u32 idpf_get_rx_ring_count(struct net_device *netdev) {
> +	struct idpf_vport *vport;
> +	u32 num_rxq;
> +
> +	idpf_vport_ctrl_lock(netdev);
> +	vport = idpf_netdev_to_vport(netdev);
> +	num_rxq = vport->num_rxq;
> +	idpf_vport_ctrl_unlock(netdev);
> +
> +	return num_rxq;
> +}
> +
>  /**
>   * idpf_get_rxnfc - command to get RX flow classification rules
>   * @netdev: network interface device structure @@ -28,9 +47,6 @@
> static int idpf_get_rxnfc(struct net_device *netdev, struct
> ethtool_rxnfc *cmd,
>  	user_config = &np->adapter->vport_config[np->vport_idx]-
> >user_config;
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = vport->num_rxq;
> -		break;
>  	case ETHTOOL_GRXCLSRLCNT:
>  		cmd->rule_cnt = user_config->num_fsteer_fltrs;
>  		cmd->data = idpf_fsteer_max_rules(vport); @@ -1757,6
> +1773,7 @@ static const struct ethtool_ops idpf_ethtool_ops = {
>  	.get_channels		= idpf_get_channels,
>  	.get_rxnfc		= idpf_get_rxnfc,
>  	.set_rxnfc		= idpf_set_rxnfc,
> +	.get_rx_ring_count	= idpf_get_rx_ring_count,
>  	.get_rxfh_key_size	= idpf_get_rxfh_key_size,
>  	.get_rxfh_indir_size	= idpf_get_rxfh_indir_size,
>  	.get_rxfh		= idpf_get_rxfh,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 3/8] ice: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen, Anthony L
> <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>; David
> S. Miller <davem@davemloft.net>; Eric Dumazet <edumazet@google.com>; Jakub
> Kicinski <kuba@kernel.org>; Paolo Abeni <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-kernel@vger.kernel.org;
> kernel-team@meta.com; Breno Leitao <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 3/8] ice: 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 ice with the new
> ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/ice/ice_ethtool.c | 19 +++++++++++++++----
>  1 file changed, 15 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c
> b/drivers/net/ethernet/intel/ice/ice_ethtool.c
> index a1d9abee97e5..adb6e10ccb1b 100644
> --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
> +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
> @@ -3083,6 +3083,20 @@ static int ice_set_rxnfc(struct net_device *netdev,
> struct ethtool_rxnfc *cmd)
>  	return -EOPNOTSUPP;
>  }
> 
> +/**
> + * ice_get_rx_ring_count - get RX ring count
> + * @netdev: network interface device structure
> + *
> + * Returns the number of RX rings.
> + */
> +static u32 ice_get_rx_ring_count(struct net_device *netdev) {
> +	struct ice_netdev_priv *np = netdev_priv(netdev);
> +	struct ice_vsi *vsi = np->vsi;
> +
> +	return vsi->rss_size;
> +}
> +
>  /**
>   * ice_get_rxnfc - command to get Rx flow classification rules
>   * @netdev: network interface device structure @@ -3103,10 +3117,6 @@
> ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
>  	hw = &vsi->back->hw;
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = vsi->rss_size;
> -		ret = 0;
> -		break;
>  	case ETHTOOL_GRXCLSRLCNT:
>  		cmd->rule_cnt = hw->fdir_active_fltr;
>  		/* report total rule count */
> @@ -4853,6 +4863,7 @@ static const struct ethtool_ops ice_ethtool_ops = {
>  	.get_sset_count		= ice_get_sset_count,
>  	.get_rxnfc		= ice_get_rxnfc,
>  	.set_rxnfc		= ice_set_rxnfc,
> +	.get_rx_ring_count	= ice_get_rx_ring_count,
>  	.get_ringparam		= ice_get_ringparam,
>  	.set_ringparam		= ice_set_ringparam,
>  	.nway_reset		= ice_nway_reset,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 2/8] iavf: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen, Anthony L
> <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>; David
> S. Miller <davem@davemloft.net>; Eric Dumazet <edumazet@google.com>; Jakub
> Kicinski <kuba@kernel.org>; Paolo Abeni <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-kernel@vger.kernel.org;
> kernel-team@meta.com; Breno Leitao <leitao@debian.org>
> Subject: [Intel-wired-lan] [PATCH net-next 2/8] iavf: 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 iavf with the new
> ethtool API for querying RX ring parameters.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>
> ---
>  drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 18 ++++++++++++++----
>  1 file changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> index a3f8ced23266..08ff90e73803 100644
> --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> @@ -1638,6 +1638,19 @@ static int iavf_set_rxnfc(struct net_device *netdev,
> struct ethtool_rxnfc *cmd)
>  	return ret;
>  }
> 
> +/**
> + * iavf_get_rx_ring_count - get RX ring count
> + * @netdev: network interface device structure
> + *
> + * Returns the number of RX rings.
> + **/
> +static u32 iavf_get_rx_ring_count(struct net_device *netdev) {
> +	struct iavf_adapter *adapter = netdev_priv(netdev);
> +
> +	return adapter->num_active_queues;
> +}
> +
>  /**
>   * iavf_get_rxnfc - command to get RX flow classification rules
>   * @netdev: network interface device structure @@ -1653,10 +1666,6 @@
> static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc
> *cmd,
>  	int ret = -EOPNOTSUPP;
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_GRXRINGS:
> -		cmd->data = adapter->num_active_queues;
> -		ret = 0;
> -		break;
>  	case ETHTOOL_GRXCLSRLCNT:
>  		if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
>  			break;
> @@ -1866,6 +1875,7 @@ static const struct ethtool_ops iavf_ethtool_ops = {
>  	.set_per_queue_coalesce = iavf_set_per_queue_coalesce,
>  	.set_rxnfc		= iavf_set_rxnfc,
>  	.get_rxnfc		= iavf_get_rxnfc,
> +	.get_rx_ring_count	= iavf_get_rx_ring_count,
>  	.get_rxfh_indir_size	= iavf_get_rxfh_indir_size,
>  	.get_rxfh		= iavf_get_rxfh,
>  	.set_rxfh		= iavf_set_rxfh,
> 
> --
> 2.47.3

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

RE: [Intel-wired-lan] [PATCH net-next 1/8] i40e: extract GRXRINGS from .get_rxnfc

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of
> Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen, Anthony L
> <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>; David
> S. Miller <davem@davemloft.net>; Eric Dumazet <edumazet@google.com>; Jakub
> Kicinski <kuba@kernel.org>; Paolo Abeni <pabeni@redhat.com>
> Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> lan@lists.osuosl.org; netdev@vger.kernel.org; linux-kernel@vger.kernel.org;
> kernel-team@meta.com; Breno Leitao <leitao@debian.org>
> Subject: [Intel-wired-lan] [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@debian.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

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>

Re: [PATCH net-next 1/8] i40e: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

Hello Jakub,

On Mon, Nov 24, 2025 at 07:48:23PM -0800, Jakub Kicinski wrote:
> On Mon, 24 Nov 2025 10:19:05 -0800 Breno Leitao wrote:
> > + * Returns the number of RX rings.
> 
> I suspect you used this format because the rest of the driver does,

Correct. I have jsut followed the other kdoc format in the code.


> but let's avoid adding new kdoc warnings. I think Andy is trying
> to clean up the "Returns" vs "Return:" in Intel drivers..
> 
>  drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3530 No description found for return value of 'i40e_get_rx_ring_count'
> 
> (similar warnings to first 4 patches of the series)

Ack! I will get them fixed.

Thanks for the review,
--breno

Re: [Intel-wired-lan] [PATCH net-next 4/8] idpf: extract GRXRINGS from .get_rxnfc

[Breno Leitao]

Hello Alex,

On Tue, Nov 25, 2025 at 06:48:08AM +0000, Loktionov, Aleksandr wrote:
> 
> 
> > -----Original Message-----
> > From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> > Of Breno Leitao
> > Sent: Monday, November 24, 2025 7:19 PM
> > To: Lobakin, Aleksander <aleksander.lobakin@intel.com>; Nguyen,
> > Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> > <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> > David S. Miller <davem@davemloft.net>; Eric Dumazet
> > <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> > <pabeni@redhat.com>
> > Cc: michal.swiatkowski@linux.intel.com; michal.kubiak@intel.com;
> > Fijalkowski, Maciej <maciej.fijalkowski@intel.com>; intel-wired-
> > lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> > kernel@vger.kernel.org; kernel-team@meta.com; Breno Leitao
> > <leitao@debian.org>
> > Subject: [Intel-wired-lan] [PATCH net-next 4/8] idpf: 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 idpf with the
> > new ethtool API for querying RX ring parameters.
> > 
> > I was not totatly convinced I needed to have the lock, but, I decided
> 
> totatly -> totally

Good catch, I will update and respin with your "Signed-off-by".

Thanks for the review,
--breno