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net: enetc: do not allow VF to configure the RSS key

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VFs do not have privilege to configure the RSS key because the registers
are owned by the PF. Currently, if VF attempts to configure the RSS key,
enetc_set_rxfh() simply skips the configuration and does not generate a
warning, which may mislead users into thinking the feature is supported.
To improve this situation, add a check to reject RSS key configuration
on VFs.

Fixes: d382563f54 ("enetc: Add RFS and RSS support")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://patch.msgid.link/20260326075233.3628047-3-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wei Fang
2026-03-26 15:52:33 +08:00
committed by Jakub Kicinski
parent d389954a6c
commit a142d13916
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
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@@ -800,8 +800,12 @@ static int enetc_set_rxfh(struct net_device *ndev,
return -EOPNOTSUPP;
/* set hash key, if PF */
if (rxfh->key && enetc_si_is_pf(si))
if (rxfh->key) {
if (!enetc_si_is_pf(si))
return -EOPNOTSUPP;
enetc_set_rss_key(si, rxfh->key);
}
/* set RSS table */
if (rxfh->indir)