[PATCH net 1/2] net: enetc: check whether the RSS algorithm is Toeplitz
From: Wei Fang <wei.fang@nxp.com>
Date: 2026-03-25 06:55:02
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Subsystem:
freescale enetc ethernet drivers, networking drivers, the rest · Maintainers:
Claudiu Manoil, Vladimir Oltean, Wei Fang, Clark Wang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <wei.fang@nxp.com>
---
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 4 ++++
1 file changed, 4 insertions(+)
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);
--
2.34.1