/*
 * drivers/net/ethernet/mellanox/mlxsw/reg.h
 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the names of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MLXSW_REG_H
#define _MLXSW_REG_H

#include <linux/string.h>
#include <linux/bitops.h>
#include <linux/if_vlan.h>

#include "item.h"
#include "port.h"

struct mlxsw_reg_info {
	u16 id;
	u16 len; /* In u8 */
};

#define MLXSW_REG(type) (&mlxsw_reg_##type)
#define MLXSW_REG_LEN(type) MLXSW_REG(type)->len
#define MLXSW_REG_ZERO(type, payload) memset(payload, 0, MLXSW_REG(type)->len)

/* SGCR - Switch General Configuration Register
 * --------------------------------------------
 * This register is used for configuration of the switch capabilities.
 */
#define MLXSW_REG_SGCR_ID 0x2000
#define MLXSW_REG_SGCR_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_sgcr = {
	.id = MLXSW_REG_SGCR_ID,
	.len = MLXSW_REG_SGCR_LEN,
};

/* reg_sgcr_llb
 * Link Local Broadcast (Default=0)
 * When set, all Link Local packets (224.0.0.X) will be treated as broadcast
 * packets and ignore the IGMP snooping entries.
 * Access: RW
 */
MLXSW_ITEM32(reg, sgcr, llb, 0x04, 0, 1);

static inline void mlxsw_reg_sgcr_pack(char *payload, bool llb)
{
	MLXSW_REG_ZERO(sgcr, payload);
	mlxsw_reg_sgcr_llb_set(payload, !!llb);
}

/* SPAD - Switch Physical Address Register
 * ---------------------------------------
 * The SPAD register configures the switch physical MAC address.
 */
#define MLXSW_REG_SPAD_ID 0x2002
#define MLXSW_REG_SPAD_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_spad = {
	.id = MLXSW_REG_SPAD_ID,
	.len = MLXSW_REG_SPAD_LEN,
};

/* reg_spad_base_mac
 * Base MAC address for the switch partitions.
 * Per switch partition MAC address is equal to:
 * base_mac + swid
 * Access: RW
 */
MLXSW_ITEM_BUF(reg, spad, base_mac, 0x02, 6);

/* SMID - Switch Multicast ID
 * --------------------------
 * In multi-chip configuration, each device should maintain mapping between
 * Multicast ID (MID) into a list of local ports. This mapping is used in all
 * the devices other than the ingress device, and is implemented as part of the
 * FDB. The MID record maps from a MID, which is a unique identi- fier of the
 * multicast group within the stacking domain, into a list of local ports into
 * which the packet is replicated.
 */
#define MLXSW_REG_SMID_ID 0x2007
#define MLXSW_REG_SMID_LEN 0x420

static const struct mlxsw_reg_info mlxsw_reg_smid = {
	.id = MLXSW_REG_SMID_ID,
	.len = MLXSW_REG_SMID_LEN,
};

/* reg_smid_swid
 * Switch partition ID.
 * Access: Index
 */
MLXSW_ITEM32(reg, smid, swid, 0x00, 24, 8);

/* reg_smid_mid
 * Multicast identifier - global identifier that represents the multicast group
 * across all devices
 * Access: Index
 */
MLXSW_ITEM32(reg, smid, mid, 0x00, 0, 16);

/* reg_smid_port
 * Local port memebership (1 bit per port).
 * Access: RW
 */
MLXSW_ITEM_BIT_ARRAY(reg, smid, port, 0x20, 0x20, 1);

/* reg_smid_port_mask
 * Local port mask (1 bit per port).
 * Access: W
 */
MLXSW_ITEM_BIT_ARRAY(reg, smid, port_mask, 0x220, 0x20, 1);

static inline void mlxsw_reg_smid_pack(char *payload, u16 mid)
{
	MLXSW_REG_ZERO(smid, payload);
	mlxsw_reg_smid_swid_set(payload, 0);
	mlxsw_reg_smid_mid_set(payload, mid);
	mlxsw_reg_smid_port_set(payload, MLXSW_PORT_CPU_PORT, 1);
	mlxsw_reg_smid_port_mask_set(payload, MLXSW_PORT_CPU_PORT, 1);
}

/* SSPR - Switch System Port Record Register
 * -----------------------------------------
 * Configures the system port to local port mapping.
 */
#define MLXSW_REG_SSPR_ID 0x2008
#define MLXSW_REG_SSPR_LEN 0x8

static const struct mlxsw_reg_info mlxsw_reg_sspr = {
	.id = MLXSW_REG_SSPR_ID,
	.len = MLXSW_REG_SSPR_LEN,
};

/* reg_sspr_m
 * Master - if set, then the record describes the master system port.
 * This is needed in case a local port is mapped into several system ports
 * (for multipathing). That number will be reported as the source system
 * port when packets are forwarded to the CPU. Only one master port is allowed
 * per local port.
 *
 * Note: Must be set for Spectrum.
 * Access: RW
 */
MLXSW_ITEM32(reg, sspr, m, 0x00, 31, 1);

/* reg_sspr_local_port
 * Local port number.
 *
 * Access: RW
 */
MLXSW_ITEM32(reg, sspr, local_port, 0x00, 16, 8);

/* reg_sspr_sub_port
 * Virtual port within the physical port.
 * Should be set to 0 when virtual ports are not enabled on the port.
 *
 * Access: RW
 */
MLXSW_ITEM32(reg, sspr, sub_port, 0x00, 8, 8);

/* reg_sspr_system_port
 * Unique identifier within the stacking domain that represents all the ports
 * that are available in the system (external ports).
 *
 * Currently, only single-ASIC configurations are supported, so we default to
 * 1:1 mapping between system ports and local ports.
 * Access: Index
 */
MLXSW_ITEM32(reg, sspr, system_port, 0x04, 0, 16);

static inline void mlxsw_reg_sspr_pack(char *payload, u8 local_port)
{
	MLXSW_REG_ZERO(sspr, payload);
	mlxsw_reg_sspr_m_set(payload, 1);
	mlxsw_reg_sspr_local_port_set(payload, local_port);
	mlxsw_reg_sspr_sub_port_set(payload, 0);
	mlxsw_reg_sspr_system_port_set(payload, local_port);
}

/* SPMS - Switch Port MSTP/RSTP State Register
 * -------------------------------------------
 * Configures the spanning tree state of a physical port.
 */
#define MLXSW_REG_SPMS_ID 0x200d
#define MLXSW_REG_SPMS_LEN 0x404

static const struct mlxsw_reg_info mlxsw_reg_spms = {
	.id = MLXSW_REG_SPMS_ID,
	.len = MLXSW_REG_SPMS_LEN,
};

/* reg_spms_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, spms, local_port, 0x00, 16, 8);

enum mlxsw_reg_spms_state {
	MLXSW_REG_SPMS_STATE_NO_CHANGE,
	MLXSW_REG_SPMS_STATE_DISCARDING,
	MLXSW_REG_SPMS_STATE_LEARNING,
	MLXSW_REG_SPMS_STATE_FORWARDING,
};

/* reg_spms_state
 * Spanning tree state of each VLAN ID (VID) of the local port.
 * 0 - Do not change spanning tree state (used only when writing).
 * 1 - Discarding. No learning or forwarding to/from this port (default).
 * 2 - Learning. Port is learning, but not forwarding.
 * 3 - Forwarding. Port is learning and forwarding.
 * Access: RW
 */
MLXSW_ITEM_BIT_ARRAY(reg, spms, state, 0x04, 0x400, 2);

static inline void mlxsw_reg_spms_pack(char *payload, u8 local_port, u16 vid,
				       enum mlxsw_reg_spms_state state)
{
	MLXSW_REG_ZERO(spms, payload);
	mlxsw_reg_spms_local_port_set(payload, local_port);
	mlxsw_reg_spms_state_set(payload, vid, state);
}

/* SFGC - Switch Flooding Group Configuration
 * ------------------------------------------
 * The following register controls the association of flooding tables and MIDs
 * to packet types used for flooding.
 */
#define MLXSW_REG_SFGC_ID  0x2011
#define MLXSW_REG_SFGC_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_sfgc = {
	.id = MLXSW_REG_SFGC_ID,
	.len = MLXSW_REG_SFGC_LEN,
};

enum mlxsw_reg_sfgc_type {
	MLXSW_REG_SFGC_TYPE_BROADCAST = 0,
	MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST = 1,
	MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV4 = 2,
	MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV6 = 3,
	MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_NON_IP = 5,
	MLXSW_REG_SFGC_TYPE_IPV4_LINK_LOCAL = 6,
	MLXSW_REG_SFGC_TYPE_IPV6_ALL_HOST = 7,
};

/* reg_sfgc_type
 * The traffic type to reach the flooding table.
 * Access: Index
 */
MLXSW_ITEM32(reg, sfgc, type, 0x00, 0, 4);

enum mlxsw_reg_sfgc_bridge_type {
	MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID = 0,
	MLXSW_REG_SFGC_BRIDGE_TYPE_VFID = 1,
};

/* reg_sfgc_bridge_type
 * Access: Index
 *
 * Note: SwitchX-2 only supports 802.1Q mode.
 */
MLXSW_ITEM32(reg, sfgc, bridge_type, 0x04, 24, 3);

enum mlxsw_flood_table_type {
	MLXSW_REG_SFGC_TABLE_TYPE_VID = 1,
	MLXSW_REG_SFGC_TABLE_TYPE_SINGLE = 2,
	MLXSW_REG_SFGC_TABLE_TYPE_ANY = 0,
	MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST = 3,
	MLXSW_REG_SFGC_TABLE_TYPE_FID = 4,
};

/* reg_sfgc_table_type
 * See mlxsw_flood_table_type
 * Access: RW
 *
 * Note: FID offset and FID types are not supported in SwitchX-2.
 */
MLXSW_ITEM32(reg, sfgc, table_type, 0x04, 16, 3);

/* reg_sfgc_flood_table
 * Flooding table index to associate with the specific type on the specific
 * switch partition.
 * Access: RW
 */
MLXSW_ITEM32(reg, sfgc, flood_table, 0x04, 0, 6);

/* reg_sfgc_mid
 * The multicast ID for the swid. Not supported for Spectrum
 * Access: RW
 */
MLXSW_ITEM32(reg, sfgc, mid, 0x08, 0, 16);

/* reg_sfgc_counter_set_type
 * Counter Set Type for flow counters.
 * Access: RW
 */
MLXSW_ITEM32(reg, sfgc, counter_set_type, 0x0C, 24, 8);

/* reg_sfgc_counter_index
 * Counter Index for flow counters.
 * Access: RW
 */
MLXSW_ITEM32(reg, sfgc, counter_index, 0x0C, 0, 24);

static inline void
mlxsw_reg_sfgc_pack(char *payload, enum mlxsw_reg_sfgc_type type,
		    enum mlxsw_reg_sfgc_bridge_type bridge_type,
		    enum mlxsw_flood_table_type table_type,
		    unsigned int flood_table)
{
	MLXSW_REG_ZERO(sfgc, payload);
	mlxsw_reg_sfgc_type_set(payload, type);
	mlxsw_reg_sfgc_bridge_type_set(payload, bridge_type);
	mlxsw_reg_sfgc_table_type_set(payload, table_type);
	mlxsw_reg_sfgc_flood_table_set(payload, flood_table);
	mlxsw_reg_sfgc_mid_set(payload, MLXSW_PORT_MID);
}

/* SFTR - Switch Flooding Table Register
 * -------------------------------------
 * The switch flooding table is used for flooding packet replication. The table
 * defines a bit mask of ports for packet replication.
 */
#define MLXSW_REG_SFTR_ID 0x2012
#define MLXSW_REG_SFTR_LEN 0x420

static const struct mlxsw_reg_info mlxsw_reg_sftr = {
	.id = MLXSW_REG_SFTR_ID,
	.len = MLXSW_REG_SFTR_LEN,
};

/* reg_sftr_swid
 * Switch partition ID with which to associate the port.
 * Access: Index
 */
MLXSW_ITEM32(reg, sftr, swid, 0x00, 24, 8);

/* reg_sftr_flood_table
 * Flooding table index to associate with the specific type on the specific
 * switch partition.
 * Access: Index
 */
MLXSW_ITEM32(reg, sftr, flood_table, 0x00, 16, 6);

/* reg_sftr_index
 * Index. Used as an index into the Flooding Table in case the table is
 * configured to use VID / FID or FID Offset.
 * Access: Index
 */
MLXSW_ITEM32(reg, sftr, index, 0x00, 0, 16);

/* reg_sftr_table_type
 * See mlxsw_flood_table_type
 * Access: RW
 */
MLXSW_ITEM32(reg, sftr, table_type, 0x04, 16, 3);

/* reg_sftr_range
 * Range of entries to update
 * Access: Index
 */
MLXSW_ITEM32(reg, sftr, range, 0x04, 0, 16);

/* reg_sftr_port
 * Local port membership (1 bit per port).
 * Access: RW
 */
MLXSW_ITEM_BIT_ARRAY(reg, sftr, port, 0x20, 0x20, 1);

/* reg_sftr_cpu_port_mask
 * CPU port mask (1 bit per port).
 * Access: W
 */
MLXSW_ITEM_BIT_ARRAY(reg, sftr, port_mask, 0x220, 0x20, 1);

static inline void mlxsw_reg_sftr_pack(char *payload,
				       unsigned int flood_table,
				       unsigned int index,
				       enum mlxsw_flood_table_type table_type,
				       unsigned int range)
{
	MLXSW_REG_ZERO(sftr, payload);
	mlxsw_reg_sftr_swid_set(payload, 0);
	mlxsw_reg_sftr_flood_table_set(payload, flood_table);
	mlxsw_reg_sftr_index_set(payload, index);
	mlxsw_reg_sftr_table_type_set(payload, table_type);
	mlxsw_reg_sftr_range_set(payload, range);
	mlxsw_reg_sftr_port_set(payload, MLXSW_PORT_CPU_PORT, 1);
	mlxsw_reg_sftr_port_mask_set(payload, MLXSW_PORT_CPU_PORT, 1);
}

/* SPMLR - Switch Port MAC Learning Register
 * -----------------------------------------
 * Controls the Switch MAC learning policy per port.
 */
#define MLXSW_REG_SPMLR_ID 0x2018
#define MLXSW_REG_SPMLR_LEN 0x8

static const struct mlxsw_reg_info mlxsw_reg_spmlr = {
	.id = MLXSW_REG_SPMLR_ID,
	.len = MLXSW_REG_SPMLR_LEN,
};

/* reg_spmlr_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, spmlr, local_port, 0x00, 16, 8);

/* reg_spmlr_sub_port
 * Virtual port within the physical port.
 * Should be set to 0 when virtual ports are not enabled on the port.
 * Access: Index
 */
MLXSW_ITEM32(reg, spmlr, sub_port, 0x00, 8, 8);

enum mlxsw_reg_spmlr_learn_mode {
	MLXSW_REG_SPMLR_LEARN_MODE_DISABLE = 0,
	MLXSW_REG_SPMLR_LEARN_MODE_ENABLE = 2,
	MLXSW_REG_SPMLR_LEARN_MODE_SEC = 3,
};

/* reg_spmlr_learn_mode
 * Learning mode on the port.
 * 0 - Learning disabled.
 * 2 - Learning enabled.
 * 3 - Security mode.
 *
 * In security mode the switch does not learn MACs on the port, but uses the
 * SMAC to see if it exists on another ingress port. If so, the packet is
 * classified as a bad packet and is discarded unless the software registers
 * to receive port security error packets usign HPKT.
 */
MLXSW_ITEM32(reg, spmlr, learn_mode, 0x04, 30, 2);

static inline void mlxsw_reg_spmlr_pack(char *payload, u8 local_port,
					enum mlxsw_reg_spmlr_learn_mode mode)
{
	MLXSW_REG_ZERO(spmlr, payload);
	mlxsw_reg_spmlr_local_port_set(payload, local_port);
	mlxsw_reg_spmlr_sub_port_set(payload, 0);
	mlxsw_reg_spmlr_learn_mode_set(payload, mode);
}

/* PMLP - Ports Module to Local Port Register
 * ------------------------------------------
 * Configures the assignment of modules to local ports.
 */
#define MLXSW_REG_PMLP_ID 0x5002
#define MLXSW_REG_PMLP_LEN 0x40

static const struct mlxsw_reg_info mlxsw_reg_pmlp = {
	.id = MLXSW_REG_PMLP_ID,
	.len = MLXSW_REG_PMLP_LEN,
};

/* reg_pmlp_rxtx
 * 0 - Tx value is used for both Tx and Rx.
 * 1 - Rx value is taken from a separte field.
 * Access: RW
 */
MLXSW_ITEM32(reg, pmlp, rxtx, 0x00, 31, 1);

/* reg_pmlp_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, pmlp, local_port, 0x00, 16, 8);

/* reg_pmlp_width
 * 0 - Unmap local port.
 * 1 - Lane 0 is used.
 * 2 - Lanes 0 and 1 are used.
 * 4 - Lanes 0, 1, 2 and 3 are used.
 * Access: RW
 */
MLXSW_ITEM32(reg, pmlp, width, 0x00, 0, 8);

/* reg_pmlp_module
 * Module number.
 * Access: RW
 */
MLXSW_ITEM32_INDEXED(reg, pmlp, module, 0x04, 0, 8, 0x04, 0, false);

/* reg_pmlp_tx_lane
 * Tx Lane. When rxtx field is cleared, this field is used for Rx as well.
 * Access: RW
 */
MLXSW_ITEM32_INDEXED(reg, pmlp, tx_lane, 0x04, 16, 2, 0x04, 16, false);

/* reg_pmlp_rx_lane
 * Rx Lane. When rxtx field is cleared, this field is ignored and Rx lane is
 * equal to Tx lane.
 * Access: RW
 */
MLXSW_ITEM32_INDEXED(reg, pmlp, rx_lane, 0x04, 24, 2, 0x04, 24, false);

static inline void mlxsw_reg_pmlp_pack(char *payload, u8 local_port)
{
	MLXSW_REG_ZERO(pmlp, payload);
	mlxsw_reg_pmlp_local_port_set(payload, local_port);
}

/* PMTU - Port MTU Register
 * ------------------------
 * Configures and reports the port MTU.
 */
#define MLXSW_REG_PMTU_ID 0x5003
#define MLXSW_REG_PMTU_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_pmtu = {
	.id = MLXSW_REG_PMTU_ID,
	.len = MLXSW_REG_PMTU_LEN,
};

/* reg_pmtu_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, pmtu, local_port, 0x00, 16, 8);

/* reg_pmtu_max_mtu
 * Maximum MTU.
 * When port type (e.g. Ethernet) is configured, the relevant MTU is
 * reported, otherwise the minimum between the max_mtu of the different
 * types is reported.
 * Access: RO
 */
MLXSW_ITEM32(reg, pmtu, max_mtu, 0x04, 16, 16);

/* reg_pmtu_admin_mtu
 * MTU value to set port to. Must be smaller or equal to max_mtu.
 * Note: If port type is Infiniband, then port must be disabled, when its
 * MTU is set.
 * Access: RW
 */
MLXSW_ITEM32(reg, pmtu, admin_mtu, 0x08, 16, 16);

/* reg_pmtu_oper_mtu
 * The actual MTU configured on the port. Packets exceeding this size
 * will be dropped.
 * Note: In Ethernet and FC oper_mtu == admin_mtu, however, in Infiniband
 * oper_mtu might be smaller than admin_mtu.
 * Access: RO
 */
MLXSW_ITEM32(reg, pmtu, oper_mtu, 0x0C, 16, 16);

static inline void mlxsw_reg_pmtu_pack(char *payload, u8 local_port,
				       u16 new_mtu)
{
	MLXSW_REG_ZERO(pmtu, payload);
	mlxsw_reg_pmtu_local_port_set(payload, local_port);
	mlxsw_reg_pmtu_max_mtu_set(payload, 0);
	mlxsw_reg_pmtu_admin_mtu_set(payload, new_mtu);
	mlxsw_reg_pmtu_oper_mtu_set(payload, 0);
}

/* PTYS - Port Type and Speed Register
 * -----------------------------------
 * Configures and reports the port speed type.
 *
 * Note: When set while the link is up, the changes will not take effect
 * until the port transitions from down to up state.
 */
#define MLXSW_REG_PTYS_ID 0x5004
#define MLXSW_REG_PTYS_LEN 0x40

static const struct mlxsw_reg_info mlxsw_reg_ptys = {
	.id = MLXSW_REG_PTYS_ID,
	.len = MLXSW_REG_PTYS_LEN,
};

/* reg_ptys_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, ptys, local_port, 0x00, 16, 8);

#define MLXSW_REG_PTYS_PROTO_MASK_ETH	BIT(2)

/* reg_ptys_proto_mask
 * Protocol mask. Indicates which protocol is used.
 * 0 - Infiniband.
 * 1 - Fibre Channel.
 * 2 - Ethernet.
 * Access: Index
 */
MLXSW_ITEM32(reg, ptys, proto_mask, 0x00, 0, 3);

#define MLXSW_REG_PTYS_ETH_SPEED_SGMII			BIT(0)
#define MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX		BIT(1)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4		BIT(2)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4		BIT(3)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR		BIT(4)
#define MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2		BIT(5)
#define MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4		BIT(6)
#define MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4		BIT(7)
#define MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4		BIT(8)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR		BIT(12)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR		BIT(13)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR		BIT(14)
#define MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4		BIT(15)
#define MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4	BIT(16)
#define MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4		BIT(19)
#define MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4		BIT(20)
#define MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4		BIT(21)
#define MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4		BIT(22)
#define MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4	BIT(23)
#define MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX		BIT(24)
#define MLXSW_REG_PTYS_ETH_SPEED_100BASE_T		BIT(25)
#define MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T		BIT(26)
#define MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR		BIT(27)
#define MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR		BIT(28)
#define MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR		BIT(29)
#define MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2		BIT(30)
#define MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2		BIT(31)

/* reg_ptys_eth_proto_cap
 * Ethernet port supported speeds and protocols.
 * Access: RO
 */
MLXSW_ITEM32(reg, ptys, eth_proto_cap, 0x0C, 0, 32);

/* reg_ptys_eth_proto_admin
 * Speed and protocol to set port to.
 * Access: RW
 */
MLXSW_ITEM32(reg, ptys, eth_proto_admin, 0x18, 0, 32);

/* reg_ptys_eth_proto_oper
 * The current speed and protocol configured for the port.
 * Access: RO
 */
MLXSW_ITEM32(reg, ptys, eth_proto_oper, 0x24, 0, 32);

static inline void mlxsw_reg_ptys_pack(char *payload, u8 local_port,
				       u32 proto_admin)
{
	MLXSW_REG_ZERO(ptys, payload);
	mlxsw_reg_ptys_local_port_set(payload, local_port);
	mlxsw_reg_ptys_proto_mask_set(payload, MLXSW_REG_PTYS_PROTO_MASK_ETH);
	mlxsw_reg_ptys_eth_proto_admin_set(payload, proto_admin);
}

static inline void mlxsw_reg_ptys_unpack(char *payload, u32 *p_eth_proto_cap,
					 u32 *p_eth_proto_adm,
					 u32 *p_eth_proto_oper)
{
	if (p_eth_proto_cap)
		*p_eth_proto_cap = mlxsw_reg_ptys_eth_proto_cap_get(payload);
	if (p_eth_proto_adm)
		*p_eth_proto_adm = mlxsw_reg_ptys_eth_proto_admin_get(payload);
	if (p_eth_proto_oper)
		*p_eth_proto_oper = mlxsw_reg_ptys_eth_proto_oper_get(payload);
}

/* PPAD - Port Physical Address Register
 * -------------------------------------
 * The PPAD register configures the per port physical MAC address.
 */
#define MLXSW_REG_PPAD_ID 0x5005
#define MLXSW_REG_PPAD_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_ppad = {
	.id = MLXSW_REG_PPAD_ID,
	.len = MLXSW_REG_PPAD_LEN,
};

/* reg_ppad_single_base_mac
 * 0: base_mac, local port should be 0 and mac[7:0] is
 * reserved. HW will set incremental
 * 1: single_mac - mac of the local_port
 * Access: RW
 */
MLXSW_ITEM32(reg, ppad, single_base_mac, 0x00, 28, 1);

/* reg_ppad_local_port
 * port number, if single_base_mac = 0 then local_port is reserved
 * Access: RW
 */
MLXSW_ITEM32(reg, ppad, local_port, 0x00, 16, 8);

/* reg_ppad_mac
 * If single_base_mac = 0 - base MAC address, mac[7:0] is reserved.
 * If single_base_mac = 1 - the per port MAC address
 * Access: RW
 */
MLXSW_ITEM_BUF(reg, ppad, mac, 0x02, 6);

static inline void mlxsw_reg_ppad_pack(char *payload, bool single_base_mac,
				       u8 local_port)
{
	MLXSW_REG_ZERO(ppad, payload);
	mlxsw_reg_ppad_single_base_mac_set(payload, !!single_base_mac);
	mlxsw_reg_ppad_local_port_set(payload, local_port);
}

/* PAOS - Ports Administrative and Operational Status Register
 * -----------------------------------------------------------
 * Configures and retrieves per port administrative and operational status.
 */
#define MLXSW_REG_PAOS_ID 0x5006
#define MLXSW_REG_PAOS_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_paos = {
	.id = MLXSW_REG_PAOS_ID,
	.len = MLXSW_REG_PAOS_LEN,
};

/* reg_paos_swid
 * Switch partition ID with which to associate the port.
 * Note: while external ports uses unique local port numbers (and thus swid is
 * redundant), router ports use the same local port number where swid is the
 * only indication for the relevant port.
 * Access: Index
 */
MLXSW_ITEM32(reg, paos, swid, 0x00, 24, 8);

/* reg_paos_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, paos, local_port, 0x00, 16, 8);

/* reg_paos_admin_status
 * Port administrative state (the desired state of the port):
 * 1 - Up.
 * 2 - Down.
 * 3 - Up once. This means that in case of link failure, the port won't go
 *     into polling mode, but will wait to be re-enabled by software.
 * 4 - Disabled by system. Can only be set by hardware.
 * Access: RW
 */
MLXSW_ITEM32(reg, paos, admin_status, 0x00, 8, 4);

/* reg_paos_oper_status
 * Port operational state (the current state):
 * 1 - Up.
 * 2 - Down.
 * 3 - Down by port failure. This means that the device will not let the
 *     port up again until explicitly specified by software.
 * Access: RO
 */
MLXSW_ITEM32(reg, paos, oper_status, 0x00, 0, 4);

/* reg_paos_ase
 * Admin state update enabled.
 * Access: WO
 */
MLXSW_ITEM32(reg, paos, ase, 0x04, 31, 1);

/* reg_paos_ee
 * Event update enable. If this bit is set, event generation will be
 * updated based on the e field.
 * Access: WO
 */
MLXSW_ITEM32(reg, paos, ee, 0x04, 30, 1);

/* reg_paos_e
 * Event generation on operational state change:
 * 0 - Do not generate event.
 * 1 - Generate Event.
 * 2 - Generate Single Event.
 * Access: RW
 */
MLXSW_ITEM32(reg, paos, e, 0x04, 0, 2);

static inline void mlxsw_reg_paos_pack(char *payload, u8 local_port,
				       enum mlxsw_port_admin_status status)
{
	MLXSW_REG_ZERO(paos, payload);
	mlxsw_reg_paos_swid_set(payload, 0);
	mlxsw_reg_paos_local_port_set(payload, local_port);
	mlxsw_reg_paos_admin_status_set(payload, status);
	mlxsw_reg_paos_oper_status_set(payload, 0);
	mlxsw_reg_paos_ase_set(payload, 1);
	mlxsw_reg_paos_ee_set(payload, 1);
	mlxsw_reg_paos_e_set(payload, 1);
}

/* PPCNT - Ports Performance Counters Register
 * -------------------------------------------
 * The PPCNT register retrieves per port performance counters.
 */
#define MLXSW_REG_PPCNT_ID 0x5008
#define MLXSW_REG_PPCNT_LEN 0x100

static const struct mlxsw_reg_info mlxsw_reg_ppcnt = {
	.id = MLXSW_REG_PPCNT_ID,
	.len = MLXSW_REG_PPCNT_LEN,
};

/* reg_ppcnt_swid
 * For HCA: must be always 0.
 * Switch partition ID to associate port with.
 * Switch partitions are numbered from 0 to 7 inclusively.
 * Switch partition 254 indicates stacking ports.
 * Switch partition 255 indicates all switch partitions.
 * Only valid on Set() operation with local_port=255.
 * Access: Index
 */
MLXSW_ITEM32(reg, ppcnt, swid, 0x00, 24, 8);

/* reg_ppcnt_local_port
 * Local port number.
 * 255 indicates all ports on the device, and is only allowed
 * for Set() operation.
 * Access: Index
 */
MLXSW_ITEM32(reg, ppcnt, local_port, 0x00, 16, 8);

/* reg_ppcnt_pnat
 * Port number access type:
 * 0 - Local port number
 * 1 - IB port number
 * Access: Index
 */
MLXSW_ITEM32(reg, ppcnt, pnat, 0x00, 14, 2);

/* reg_ppcnt_grp
 * Performance counter group.
 * Group 63 indicates all groups. Only valid on Set() operation with
 * clr bit set.
 * 0x0: IEEE 802.3 Counters
 * 0x1: RFC 2863 Counters
 * 0x2: RFC 2819 Counters
 * 0x3: RFC 3635 Counters
 * 0x5: Ethernet Extended Counters
 * 0x8: Link Level Retransmission Counters
 * 0x10: Per Priority Counters
 * 0x11: Per Traffic Class Counters
 * 0x12: Physical Layer Counters
 * Access: Index
 */
MLXSW_ITEM32(reg, ppcnt, grp, 0x00, 0, 6);

/* reg_ppcnt_clr
 * Clear counters. Setting the clr bit will reset the counter value
 * for all counters in the counter group. This bit can be set
 * for both Set() and Get() operation.
 * Access: OP
 */
MLXSW_ITEM32(reg, ppcnt, clr, 0x04, 31, 1);

/* reg_ppcnt_prio_tc
 * Priority for counter set that support per priority, valid values: 0-7.
 * Traffic class for counter set that support per traffic class,
 * valid values: 0- cap_max_tclass-1 .
 * For HCA: cap_max_tclass is always 8.
 * Otherwise must be 0.
 * Access: Index
 */
MLXSW_ITEM32(reg, ppcnt, prio_tc, 0x04, 0, 5);

/* reg_ppcnt_a_frames_transmitted_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_frames_transmitted_ok,
	     0x08 + 0x00, 0, 64);

/* reg_ppcnt_a_frames_received_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_frames_received_ok,
	     0x08 + 0x08, 0, 64);

/* reg_ppcnt_a_frame_check_sequence_errors
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_frame_check_sequence_errors,
	     0x08 + 0x10, 0, 64);

/* reg_ppcnt_a_alignment_errors
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_alignment_errors,
	     0x08 + 0x18, 0, 64);

/* reg_ppcnt_a_octets_transmitted_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_octets_transmitted_ok,
	     0x08 + 0x20, 0, 64);

/* reg_ppcnt_a_octets_received_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_octets_received_ok,
	     0x08 + 0x28, 0, 64);

/* reg_ppcnt_a_multicast_frames_xmitted_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_multicast_frames_xmitted_ok,
	     0x08 + 0x30, 0, 64);

/* reg_ppcnt_a_broadcast_frames_xmitted_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_broadcast_frames_xmitted_ok,
	     0x08 + 0x38, 0, 64);

/* reg_ppcnt_a_multicast_frames_received_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_multicast_frames_received_ok,
	     0x08 + 0x40, 0, 64);

/* reg_ppcnt_a_broadcast_frames_received_ok
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_broadcast_frames_received_ok,
	     0x08 + 0x48, 0, 64);

/* reg_ppcnt_a_in_range_length_errors
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_in_range_length_errors,
	     0x08 + 0x50, 0, 64);

/* reg_ppcnt_a_out_of_range_length_field
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_out_of_range_length_field,
	     0x08 + 0x58, 0, 64);

/* reg_ppcnt_a_frame_too_long_errors
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_frame_too_long_errors,
	     0x08 + 0x60, 0, 64);

/* reg_ppcnt_a_symbol_error_during_carrier
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_symbol_error_during_carrier,
	     0x08 + 0x68, 0, 64);

/* reg_ppcnt_a_mac_control_frames_transmitted
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_mac_control_frames_transmitted,
	     0x08 + 0x70, 0, 64);

/* reg_ppcnt_a_mac_control_frames_received
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_mac_control_frames_received,
	     0x08 + 0x78, 0, 64);

/* reg_ppcnt_a_unsupported_opcodes_received
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_unsupported_opcodes_received,
	     0x08 + 0x80, 0, 64);

/* reg_ppcnt_a_pause_mac_ctrl_frames_received
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_pause_mac_ctrl_frames_received,
	     0x08 + 0x88, 0, 64);

/* reg_ppcnt_a_pause_mac_ctrl_frames_transmitted
 * Access: RO
 */
MLXSW_ITEM64(reg, ppcnt, a_pause_mac_ctrl_frames_transmitted,
	     0x08 + 0x90, 0, 64);

static inline void mlxsw_reg_ppcnt_pack(char *payload, u8 local_port)
{
	MLXSW_REG_ZERO(ppcnt, payload);
	mlxsw_reg_ppcnt_swid_set(payload, 0);
	mlxsw_reg_ppcnt_local_port_set(payload, local_port);
	mlxsw_reg_ppcnt_pnat_set(payload, 0);
	mlxsw_reg_ppcnt_grp_set(payload, 0);
	mlxsw_reg_ppcnt_clr_set(payload, 0);
	mlxsw_reg_ppcnt_prio_tc_set(payload, 0);
}

/* PSPA - Port Switch Partition Allocation
 * ---------------------------------------
 * Controls the association of a port with a switch partition and enables
 * configuring ports as stacking ports.
 */
#define MLXSW_REG_PSPA_ID 0x500d
#define MLXSW_REG_PSPA_LEN 0x8

static const struct mlxsw_reg_info mlxsw_reg_pspa = {
	.id = MLXSW_REG_PSPA_ID,
	.len = MLXSW_REG_PSPA_LEN,
};

/* reg_pspa_swid
 * Switch partition ID.
 * Access: RW
 */
MLXSW_ITEM32(reg, pspa, swid, 0x00, 24, 8);

/* reg_pspa_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, pspa, local_port, 0x00, 16, 8);

/* reg_pspa_sub_port
 * Virtual port within the local port. Set to 0 when virtual ports are
 * disabled on the local port.
 * Access: Index
 */
MLXSW_ITEM32(reg, pspa, sub_port, 0x00, 8, 8);

static inline void mlxsw_reg_pspa_pack(char *payload, u8 swid, u8 local_port)
{
	MLXSW_REG_ZERO(pspa, payload);
	mlxsw_reg_pspa_swid_set(payload, swid);
	mlxsw_reg_pspa_local_port_set(payload, local_port);
	mlxsw_reg_pspa_sub_port_set(payload, 0);
}

/* HTGT - Host Trap Group Table
 * ----------------------------
 * Configures the properties for forwarding to CPU.
 */
#define MLXSW_REG_HTGT_ID 0x7002
#define MLXSW_REG_HTGT_LEN 0x100

static const struct mlxsw_reg_info mlxsw_reg_htgt = {
	.id = MLXSW_REG_HTGT_ID,
	.len = MLXSW_REG_HTGT_LEN,
};

/* reg_htgt_swid
 * Switch partition ID.
 * Access: Index
 */
MLXSW_ITEM32(reg, htgt, swid, 0x00, 24, 8);

#define MLXSW_REG_HTGT_PATH_TYPE_LOCAL 0x0	/* For locally attached CPU */

/* reg_htgt_type
 * CPU path type.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, type, 0x00, 8, 4);

#define MLXSW_REG_HTGT_TRAP_GROUP_EMAD	0x0
#define MLXSW_REG_HTGT_TRAP_GROUP_RX	0x1

/* reg_htgt_trap_group
 * Trap group number. User defined number specifying which trap groups
 * should be forwarded to the CPU. The mapping between trap IDs and trap
 * groups is configured using HPKT register.
 * Access: Index
 */
MLXSW_ITEM32(reg, htgt, trap_group, 0x00, 0, 8);

enum {
	MLXSW_REG_HTGT_POLICER_DISABLE,
	MLXSW_REG_HTGT_POLICER_ENABLE,
};

/* reg_htgt_pide
 * Enable policer ID specified using 'pid' field.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, pide, 0x04, 15, 1);

/* reg_htgt_pid
 * Policer ID for the trap group.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, pid, 0x04, 0, 8);

#define MLXSW_REG_HTGT_TRAP_TO_CPU 0x0

/* reg_htgt_mirror_action
 * Mirror action to use.
 * 0 - Trap to CPU.
 * 1 - Trap to CPU and mirror to a mirroring agent.
 * 2 - Mirror to a mirroring agent and do not trap to CPU.
 * Access: RW
 *
 * Note: Mirroring to a mirroring agent is only supported in Spectrum.
 */
MLXSW_ITEM32(reg, htgt, mirror_action, 0x08, 8, 2);

/* reg_htgt_mirroring_agent
 * Mirroring agent.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, mirroring_agent, 0x08, 0, 3);

/* reg_htgt_priority
 * Trap group priority.
 * In case a packet matches multiple classification rules, the packet will
 * only be trapped once, based on the trap ID associated with the group (via
 * register HPKT) with the highest priority.
 * Supported values are 0-7, with 7 represnting the highest priority.
 * Access: RW
 *
 * Note: In SwitchX-2 this field is ignored and the priority value is replaced
 * by the 'trap_group' field.
 */
MLXSW_ITEM32(reg, htgt, priority, 0x0C, 0, 4);

/* reg_htgt_local_path_cpu_tclass
 * CPU ingress traffic class for the trap group.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, local_path_cpu_tclass, 0x10, 16, 6);

#define MLXSW_REG_HTGT_LOCAL_PATH_RDQ_EMAD	0x15
#define MLXSW_REG_HTGT_LOCAL_PATH_RDQ_RX	0x14

/* reg_htgt_local_path_rdq
 * Receive descriptor queue (RDQ) to use for the trap group.
 * Access: RW
 */
MLXSW_ITEM32(reg, htgt, local_path_rdq, 0x10, 0, 6);

static inline void mlxsw_reg_htgt_pack(char *payload, u8 trap_group)
{
	u8 swid, rdq;

	MLXSW_REG_ZERO(htgt, payload);
	if (MLXSW_REG_HTGT_TRAP_GROUP_EMAD == trap_group) {
		swid = MLXSW_PORT_SWID_ALL_SWIDS;
		rdq = MLXSW_REG_HTGT_LOCAL_PATH_RDQ_EMAD;
	} else {
		swid = 0;
		rdq = MLXSW_REG_HTGT_LOCAL_PATH_RDQ_RX;
	}
	mlxsw_reg_htgt_swid_set(payload, swid);
	mlxsw_reg_htgt_type_set(payload, MLXSW_REG_HTGT_PATH_TYPE_LOCAL);
	mlxsw_reg_htgt_trap_group_set(payload, trap_group);
	mlxsw_reg_htgt_pide_set(payload, MLXSW_REG_HTGT_POLICER_DISABLE);
	mlxsw_reg_htgt_pid_set(payload, 0);
	mlxsw_reg_htgt_mirror_action_set(payload, MLXSW_REG_HTGT_TRAP_TO_CPU);
	mlxsw_reg_htgt_mirroring_agent_set(payload, 0);
	mlxsw_reg_htgt_priority_set(payload, 0);
	mlxsw_reg_htgt_local_path_cpu_tclass_set(payload, 7);
	mlxsw_reg_htgt_local_path_rdq_set(payload, rdq);
}

/* HPKT - Host Packet Trap
 * -----------------------
 * Configures trap IDs inside trap groups.
 */
#define MLXSW_REG_HPKT_ID 0x7003
#define MLXSW_REG_HPKT_LEN 0x10

static const struct mlxsw_reg_info mlxsw_reg_hpkt = {
	.id = MLXSW_REG_HPKT_ID,
	.len = MLXSW_REG_HPKT_LEN,
};

enum {
	MLXSW_REG_HPKT_ACK_NOT_REQUIRED,
	MLXSW_REG_HPKT_ACK_REQUIRED,
};

/* reg_hpkt_ack
 * Require acknowledgements from the host for events.
 * If set, then the device will wait for the event it sent to be acknowledged
 * by the host. This option is only relevant for event trap IDs.
 * Access: RW
 *
 * Note: Currently not supported by firmware.
 */
MLXSW_ITEM32(reg, hpkt, ack, 0x00, 24, 1);

enum mlxsw_reg_hpkt_action {
	MLXSW_REG_HPKT_ACTION_FORWARD,
	MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
	MLXSW_REG_HPKT_ACTION_MIRROR_TO_CPU,
	MLXSW_REG_HPKT_ACTION_DISCARD,
	MLXSW_REG_HPKT_ACTION_SOFT_DISCARD,
	MLXSW_REG_HPKT_ACTION_TRAP_AND_SOFT_DISCARD,
};

/* reg_hpkt_action
 * Action to perform on packet when trapped.
 * 0 - No action. Forward to CPU based on switching rules.
 * 1 - Trap to CPU (CPU receives sole copy).
 * 2 - Mirror to CPU (CPU receives a replica of the packet).
 * 3 - Discard.
 * 4 - Soft discard (allow other traps to act on the packet).
 * 5 - Trap and soft discard (allow other traps to overwrite this trap).
 * Access: RW
 *
 * Note: Must be set to 0 (forward) for event trap IDs, as they are already
 * addressed to the CPU.
 */
MLXSW_ITEM32(reg, hpkt, action, 0x00, 20, 3);

/* reg_hpkt_trap_group
 * Trap group to associate the trap with.
 * Access: RW
 */
MLXSW_ITEM32(reg, hpkt, trap_group, 0x00, 12, 6);

/* reg_hpkt_trap_id
 * Trap ID.
 * Access: Index
 *
 * Note: A trap ID can only be associated with a single trap group. The device
 * will associate the trap ID with the last trap group configured.
 */
MLXSW_ITEM32(reg, hpkt, trap_id, 0x00, 0, 9);

enum {
	MLXSW_REG_HPKT_CTRL_PACKET_DEFAULT,
	MLXSW_REG_HPKT_CTRL_PACKET_NO_BUFFER,
	MLXSW_REG_HPKT_CTRL_PACKET_USE_BUFFER,
};

/* reg_hpkt_ctrl
 * Configure dedicated buffer resources for control packets.
 * 0 - Keep factory defaults.
 * 1 - Do not use control buffer for this trap ID.
 * 2 - Use control buffer for this trap ID.
 * Access: RW
 */
MLXSW_ITEM32(reg, hpkt, ctrl, 0x04, 16, 2);

static inline void mlxsw_reg_hpkt_pack(char *payload, u8 action,
				       u8 trap_group, u16 trap_id)
{
	MLXSW_REG_ZERO(hpkt, payload);
	mlxsw_reg_hpkt_ack_set(payload, MLXSW_REG_HPKT_ACK_NOT_REQUIRED);
	mlxsw_reg_hpkt_action_set(payload, action);
	mlxsw_reg_hpkt_trap_group_set(payload, trap_group);
	mlxsw_reg_hpkt_trap_id_set(payload, trap_id);
	mlxsw_reg_hpkt_ctrl_set(payload, MLXSW_REG_HPKT_CTRL_PACKET_DEFAULT);
}

static inline const char *mlxsw_reg_id_str(u16 reg_id)
{
	switch (reg_id) {
	case MLXSW_REG_SGCR_ID:
		return "SGCR";
	case MLXSW_REG_SPAD_ID:
		return "SPAD";
	case MLXSW_REG_SMID_ID:
		return "SMID";
	case MLXSW_REG_SSPR_ID:
		return "SSPR";
	case MLXSW_REG_SPMS_ID:
		return "SPMS";
	case MLXSW_REG_SFGC_ID:
		return "SFGC";
	case MLXSW_REG_SFTR_ID:
		return "SFTR";
	case MLXSW_REG_SPMLR_ID:
		return "SPMLR";
	case MLXSW_REG_PMLP_ID:
		return "PMLP";
	case MLXSW_REG_PMTU_ID:
		return "PMTU";
	case MLXSW_REG_PTYS_ID:
		return "PTYS";
	case MLXSW_REG_PPAD_ID:
		return "PPAD";
	case MLXSW_REG_PAOS_ID:
		return "PAOS";
	case MLXSW_REG_PPCNT_ID:
		return "PPCNT";
	case MLXSW_REG_PSPA_ID:
		return "PSPA";
	case MLXSW_REG_HTGT_ID:
		return "HTGT";
	case MLXSW_REG_HPKT_ID:
		return "HPKT";
	default:
		return "*UNKNOWN*";
	}
}

/* PUDE - Port Up / Down Event
 * ---------------------------
 * Reports the operational state change of a port.
 */
#define MLXSW_REG_PUDE_LEN 0x10

/* reg_pude_swid
 * Switch partition ID with which to associate the port.
 * Access: Index
 */
MLXSW_ITEM32(reg, pude, swid, 0x00, 24, 8);

/* reg_pude_local_port
 * Local port number.
 * Access: Index
 */
MLXSW_ITEM32(reg, pude, local_port, 0x00, 16, 8);

/* reg_pude_admin_status
 * Port administrative state (the desired state).
 * 1 - Up.
 * 2 - Down.
 * 3 - Up once. This means that in case of link failure, the port won't go
 *     into polling mode, but will wait to be re-enabled by software.
 * 4 - Disabled by system. Can only be set by hardware.
 * Access: RO
 */
MLXSW_ITEM32(reg, pude, admin_status, 0x00, 8, 4);

/* reg_pude_oper_status
 * Port operatioanl state.
 * 1 - Up.
 * 2 - Down.
 * 3 - Down by port failure. This means that the device will not let the
 *     port up again until explicitly specified by software.
 * Access: RO
 */
MLXSW_ITEM32(reg, pude, oper_status, 0x00, 0, 4);

#endif