ethtool, ixgbe: Move RX n-tuple mask fixup to ethtool
The ethtool utility does not set masks for flow parameters that are
not specified, so if both value and mask are 0 then this must be
treated as equivalent to a mask with all bits set. Currently that is
done in the only driver that implements RX n-tuple filtering, ixgbe.
Move it to the ethtool core.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index d64e246..00334ee 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -470,8 +470,9 @@
* @action: RX ring/queue index to deliver to (non-negative) or other action
* (negative, e.g. %ETHTOOL_RXNTUPLE_ACTION_DROP)
*
- * Zero values in @h_u may be ignored, as if all the corresponding
- * mask bits were set.
+ * For flow types %TCP_V4_FLOW, %UDP_V4_FLOW and %SCTP_V4_FLOW, where
+ * a field value and mask are both zero this is treated as if all mask
+ * bits are set i.e. the field is ignored.
*/
struct ethtool_rx_ntuple_flow_spec {
__u32 flow_type;