net/mlx4_en: Manage flow steering rules with ethtool
Implement the ethtool APIs for attaching L2/L3/L4 based flow steering
rules to the netdevice RX rings. Added set_rxnfc callback and enhanced
the existing get_rxnfc callback.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 2d6dabe..8882e70 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -75,6 +75,7 @@
#define STAMP_SHIFT 31
#define STAMP_VAL 0x7fffffff
#define STATS_DELAY (HZ / 4)
+#define MAX_NUM_OF_FS_RULES 256
/* Typical TSO descriptor with 16 gather entries is 352 bytes... */
#define MAX_DESC_SIZE 512
@@ -435,6 +436,11 @@
#endif
+struct ethtool_flow_id {
+ struct ethtool_rx_flow_spec flow_spec;
+ u64 id;
+};
+
struct mlx4_en_priv {
struct mlx4_en_dev *mdev;
struct mlx4_en_port_profile *prof;
@@ -444,6 +450,7 @@
struct net_device_stats ret_stats;
struct mlx4_en_port_state port_state;
spinlock_t stats_lock;
+ struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES];
unsigned long last_moder_packets[MAX_RX_RINGS];
unsigned long last_moder_tx_packets;