From: Wei Fang Date: Thu, 26 Mar 2026 07:52:32 +0000 (+0800) Subject: net: enetc: check whether the RSS algorithm is Toeplitz X-Git-Tag: v7.0-rc7~28^2~32^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d389954a6cae7bf76b7b082ac3511d177b77ef2d;p=thirdparty%2Flinux.git net: enetc: check whether the RSS algorithm is Toeplitz Both ENETC v1 and v4 only provide Toeplitz RSS support. This patch adds a validation check to reject attempts to configure other RSS algorithms, avoiding misleading configuration options for users. Fixes: d382563f541b ("enetc: Add RFS and RSS support") Signed-off-by: Wei Fang Reviewed-by: Clark Wang Reviewed-by: Claudiu Manoil Link: https://patch.msgid.link/20260326075233.3628047-2-wei.fang@nxp.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c index 2fe140ddebb2..a393647e6062 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c @@ -795,6 +795,10 @@ static int enetc_set_rxfh(struct net_device *ndev, struct enetc_si *si = priv->si; int err = 0; + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + /* set hash key, if PF */ if (rxfh->key && enetc_si_is_pf(si)) enetc_set_rss_key(si, rxfh->key);