net: liquidio: reject unsupported coalescing params

Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/liquidio/lio_ethtool.c

@@ -3097,7 +3097,17 @@ static int lio_set_fecparam(struct net_device *netdev,
 	return 0;
 }
 
+#define LIO_ETHTOOL_COALESCE	(ETHTOOL_COALESCE_RX_USECS |		\
+				 ETHTOOL_COALESCE_MAX_FRAMES |		\
+				 ETHTOOL_COALESCE_USE_ADAPTIVE |	\
+				 ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW |	\
+				 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW |	\
+				 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH |	\
+				 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH |	\
+				 ETHTOOL_COALESCE_PKT_RATE_RX_USECS)
+
 static const struct ethtool_ops lio_ethtool_ops = {
+	.supported_coalesce_params = LIO_ETHTOOL_COALESCE,
 	.get_link_ksettings	= lio_get_link_ksettings,
 	.set_link_ksettings	= lio_set_link_ksettings,
 	.get_fecparam		= lio_get_fecparam,
@@ -3128,6 +3138,7 @@ static const struct ethtool_ops lio_ethtool_ops = {
 };
 
 static const struct ethtool_ops lio_vf_ethtool_ops = {
+	.supported_coalesce_params = LIO_ETHTOOL_COALESCE,
 	.get_link_ksettings	= lio_get_link_ksettings,
 	.get_link		= ethtool_op_get_link,
 	.get_drvinfo		= lio_get_vf_drvinfo,

include/linux/ethtool.h

@@ -211,6 +211,11 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
 	 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
 #define ETHTOOL_COALESCE_USE_ADAPTIVE					\
 	(ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
+#define ETHTOOL_COALESCE_PKT_RATE_RX_USECS				\
+	(ETHTOOL_COALESCE_USE_ADAPTIVE_RX |				\
+	 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
+	 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
+	 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
 
 /**
  * struct ethtool_ops - optional netdev operations