netdev - RE: [Intel-wired-lan] [PATCH net-next 1/7] eth: igb: migrate to new RXFH callbacks

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Message-ID: <IA3PR11MB8986B1D18E2ECC1F29162386E577A@IA3PR11MB8986.namprd11.prod.outlook.com>
Date: Fri, 13 Jun 2025 07:49:28 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Jakub Kicinski <kuba@...nel.org>, "davem@...emloft.net"
	<davem@...emloft.net>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "edumazet@...gle.com"
	<edumazet@...gle.com>, "pabeni@...hat.com" <pabeni@...hat.com>,
	"andrew+netdev@...n.ch" <andrew+netdev@...n.ch>, "horms@...nel.org"
	<horms@...nel.org>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>, "Keller, Jacob E" <jacob.e.keller@...el.com>,
	"michal.swiatkowski@...ux.intel.com" <michal.swiatkowski@...ux.intel.com>
Subject: RE: [Intel-wired-lan] [PATCH net-next 1/7] eth: igb: migrate to new
 RXFH callbacks



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf
> Of Jakub Kicinski
> Sent: Friday, June 13, 2025 3:01 AM
> To: davem@...emloft.net
> Cc: netdev@...r.kernel.org; edumazet@...gle.com; pabeni@...hat.com;
> andrew+netdev@...n.ch; horms@...nel.org; intel-wired-
> lan@...ts.osuosl.org; Nguyen, Anthony L <anthony.l.nguyen@...el.com>;
> Kitszel, Przemyslaw <przemyslaw.kitszel@...el.com>; Keller, Jacob E
> <jacob.e.keller@...el.com>; michal.swiatkowski@...ux.intel.com; Jakub
> Kicinski <kuba@...nel.org>
> Subject: [Intel-wired-lan] [PATCH net-next 1/7] eth: igb: migrate to
> new RXFH callbacks
> 
> Migrate to new callbacks added by commit 9bb00786fc61 ("net: ethtool:
> add dedicated callbacks for getting and setting rxfh fields").
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
> ---
>  drivers/net/ethernet/intel/igb/igb_ethtool.c | 20 ++++++++++---------
> -
>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c
> b/drivers/net/ethernet/intel/igb/igb_ethtool.c
> index ca6ccbc13954..92ef33459aec 100644
> --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
> +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
> @@ -2500,9 +2500,11 @@ static int igb_get_ethtool_nfc_all(struct
> igb_adapter *adapter,
>  	return 0;
>  }
> 
> -static int igb_get_rss_hash_opts(struct igb_adapter *adapter,
> -				 struct ethtool_rxnfc *cmd)
> +static int igb_get_rxfh_fields(struct net_device *dev,
> +			       struct ethtool_rxfh_fields *cmd)
>  {
> +	struct igb_adapter *adapter = netdev_priv(dev);
> +
>  	cmd->data = 0;
> 
>  	/* Report default options for RSS on igb */ @@ -2563,9 +2565,6
> @@ static int igb_get_rxnfc(struct net_device *dev, struct
> ethtool_rxnfc *cmd,
>  	case ETHTOOL_GRXCLSRLALL:
>  		ret = igb_get_ethtool_nfc_all(adapter, cmd, rule_locs);
>  		break;
> -	case ETHTOOL_GRXFH:
> -		ret = igb_get_rss_hash_opts(adapter, cmd);
> -		break;
>  	default:
>  		break;
>  	}
> @@ -2575,9 +2574,11 @@ static int igb_get_rxnfc(struct net_device
> *dev, struct ethtool_rxnfc *cmd,
> 
>  #define UDP_RSS_FLAGS (IGB_FLAG_RSS_FIELD_IPV4_UDP | \
>  		       IGB_FLAG_RSS_FIELD_IPV6_UDP)
> -static int igb_set_rss_hash_opt(struct igb_adapter *adapter,
> -				struct ethtool_rxnfc *nfc)
> +static int igb_set_rxfh_fields(struct net_device *dev,
> +			       const struct ethtool_rxfh_fields *nfc,
> +			       struct netlink_ext_ack *extack)
>  {
> +	struct igb_adapter *adapter = netdev_priv(dev);
>  	u32 flags = adapter->flags;
> 
>  	/* RSS does not support anything other than hashing @@ -3005,9
> +3006,6 @@ static int igb_set_rxnfc(struct net_device *dev, struct
> ethtool_rxnfc *cmd)
>  	int ret = -EOPNOTSUPP;
> 
>  	switch (cmd->cmd) {
> -	case ETHTOOL_SRXFH:
> -		ret = igb_set_rss_hash_opt(adapter, cmd);
> -		break;
>  	case ETHTOOL_SRXCLSRLINS:
>  		ret = igb_add_ethtool_nfc_entry(adapter, cmd);
>  		break;
> @@ -3485,6 +3483,8 @@ static const struct ethtool_ops igb_ethtool_ops
> = {
>  	.get_rxfh_indir_size	= igb_get_rxfh_indir_size,
>  	.get_rxfh		= igb_get_rxfh,
>  	.set_rxfh		= igb_set_rxfh,
> +	.get_rxfh_fields	= igb_get_rxfh_fields,
> +	.set_rxfh_fields	= igb_set_rxfh_fields,
>  	.get_channels		= igb_get_channels,
>  	.set_channels		= igb_set_channels,
>  	.get_priv_flags		= igb_get_priv_flags,
> --
> 2.49.0