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

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Message-ID: <IA3PR11MB89862138F3EBB78FCFB3B8AFE5D1A@IA3PR11MB8986.namprd11.prod.outlook.com>
Date: Tue, 25 Nov 2025 06:50:12 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Breno Leitao <leitao@...ian.org>, "Lobakin, Aleksander"
	<aleksander.lobakin@...el.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<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.swiatkowski@...ux.intel.com>,
	"michal.kubiak@...el.com" <michal.kubiak@...el.com>, "Fijalkowski, Maciej"
	<maciej.fijalkowski@...el.com>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "kernel-team@...a.com" <kernel-team@...a.com>
Subject: RE: [Intel-wired-lan] [PATCH net-next 2/8] iavf: extract GRXRINGS
 from .get_rxnfc



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Breno Leitao
> Sent: Monday, November 24, 2025 7:19 PM
> To: Lobakin, Aleksander <aleksander.lobakin@...el.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Kitszel, Przemyslaw
> <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;
> Fijalkowski, Maciej <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: [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@...ian.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@...el.com>