diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2025-06-11 07:59:43 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-06-12 17:16:19 -0700 |
| commit | fac4b41741b5cd0826cf0fa5b14e177f70a6b509 (patch) | |
| tree | 592b5d02bb63cf934e7c55751b61aeb79c710a1f /net/ethtool/ioctl.c | |
| parent | 2a644c5cecc028c4fcd6545dd736b4dee949b090 (diff) | |
net: ethtool: require drivers to opt into the per-RSS ctx RXFH
RX Flow Hashing supports using different configuration for different
RSS contexts. Only two drivers seem to support it. Make sure we
uniformly error out for drivers which don't.
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20250611145949.2674086-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ethtool/ioctl.c')
| -rw-r--r-- | net/ethtool/ioctl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 33892099cdad..1a1705e900b3 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -1075,6 +1075,10 @@ ethtool_set_rxfh_fields(struct net_device *dev, u32 cmd, void __user *useraddr) if (rc) return rc; + if (info.flow_type & FLOW_RSS && info.rss_context && + !ops->rxfh_per_ctx_fields) + return -EINVAL; + if (ops->get_rxfh) { struct ethtool_rxfh_param rxfh = {}; @@ -1105,6 +1109,10 @@ ethtool_get_rxfh_fields(struct net_device *dev, u32 cmd, void __user *useraddr) if (ret) return ret; + if (info.flow_type & FLOW_RSS && info.rss_context && + !ops->rxfh_per_ctx_fields) + return -EINVAL; + ret = ops->get_rxnfc(dev, &info, NULL); if (ret < 0) return ret; |