mlxsw: spectrum: Use dedicated trap group for sampled packets

The rate with which packets are sampled is determined by user space, so
there is no need to associate such packets with a policer.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/reg.h

@@ -5547,6 +5547,7 @@ enum mlxsw_reg_htgt_trap_group {
 	MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0,
 	MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1,
 	MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP,
+	MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE,
 
 	__MLXSW_REG_HTGT_TRAP_GROUP_MAX,
 	MLXSW_REG_HTGT_TRAP_GROUP_MAX = __MLXSW_REG_HTGT_TRAP_GROUP_MAX - 1

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

@@ -4103,7 +4103,7 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
 			     ROUTER_EXP, false),
 	/* PKT Sample trap */
 	MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,
-		  false, SP_IP2ME, DISCARD),
+		  false, SP_PKT_SAMPLE, DISCARD),
 	/* ACL trap */
 	MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, IP2ME, false),
 	/* Multicast Router Traps */
@@ -4252,6 +4252,7 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
 			priority = 1;
 			tc = 1;
 			break;
+		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE:
 		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR:
 			priority = 0;
 			tc = 0;