staging: fsl-dpaa2/ethsw: Add APIs for DPSW object

Add the command build/parse APIs for operating on DPSW objects through
the DPAA2 Management Complex.
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-dpaa2/Kconfig

@@ -16,3 +16,11 @@ config FSL_DPAA2_ETH
 	---help---
 	  Ethernet driver for Freescale DPAA2 SoCs, using the
 	  Freescale MC bus driver
+
+config FSL_DPAA2_ETHSW
+	tristate "Freescale DPAA2 Ethernet Switch"
+	depends on FSL_DPAA2
+	depends on NET_SWITCHDEV
+	---help---
+	Driver for Freescale DPAA2 Ethernet Switch. Select
+	BRIDGE to have support for bridge tools.

drivers/staging/fsl-dpaa2/Makefile

@@ -3,3 +3,4 @@
 #
 
 obj-$(CONFIG_FSL_DPAA2_ETH)	+= ethernet/
+obj-$(CONFIG_FSL_DPAA2_ETHSW)	+= ethsw/

drivers/staging/fsl-dpaa2/ethsw/Makefile

+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Freescale DPAA2 Ethernet Switch
+#
+# Copyright 2014-2017 Freescale Semiconductor Inc.
+# Copyright 2017-2018 NXP
+
+obj-$(CONFIG_FSL_DPAA2_ETHSW) += dpaa2-ethsw.o
+
+dpaa2-ethsw-objs := dpsw.o

drivers/staging/fsl-dpaa2/ethsw/dpsw-cmd.h

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017-2018 NXP
+ *
+ */
+
+#ifndef __FSL_DPSW_CMD_H
+#define __FSL_DPSW_CMD_H
+
+/* DPSW Version */
+#define DPSW_VER_MAJOR		8
+#define DPSW_VER_MINOR		0
+
+#define DPSW_CMD_BASE_VERSION	1
+#define DPSW_CMD_ID_OFFSET	4
+
+#define DPSW_CMD_ID(id)	(((id) << DPSW_CMD_ID_OFFSET) | DPSW_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPSW_CMDID_CLOSE                    DPSW_CMD_ID(0x800)
+#define DPSW_CMDID_OPEN                     DPSW_CMD_ID(0x802)
+
+#define DPSW_CMDID_GET_API_VERSION          DPSW_CMD_ID(0xa02)
+
+#define DPSW_CMDID_ENABLE                   DPSW_CMD_ID(0x002)
+#define DPSW_CMDID_DISABLE                  DPSW_CMD_ID(0x003)
+#define DPSW_CMDID_GET_ATTR                 DPSW_CMD_ID(0x004)
+#define DPSW_CMDID_RESET                    DPSW_CMD_ID(0x005)
+
+#define DPSW_CMDID_SET_IRQ_ENABLE           DPSW_CMD_ID(0x012)
+
+#define DPSW_CMDID_SET_IRQ_MASK             DPSW_CMD_ID(0x014)
+
+#define DPSW_CMDID_GET_IRQ_STATUS           DPSW_CMD_ID(0x016)
+#define DPSW_CMDID_CLEAR_IRQ_STATUS         DPSW_CMD_ID(0x017)
+
+#define DPSW_CMDID_IF_SET_TCI               DPSW_CMD_ID(0x030)
+#define DPSW_CMDID_IF_SET_STP               DPSW_CMD_ID(0x031)
+
+#define DPSW_CMDID_IF_GET_COUNTER           DPSW_CMD_ID(0x034)
+
+#define DPSW_CMDID_IF_ENABLE                DPSW_CMD_ID(0x03D)
+#define DPSW_CMDID_IF_DISABLE               DPSW_CMD_ID(0x03E)
+
+#define DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH  DPSW_CMD_ID(0x044)
+
+#define DPSW_CMDID_IF_GET_LINK_STATE        DPSW_CMD_ID(0x046)
+#define DPSW_CMDID_IF_SET_FLOODING          DPSW_CMD_ID(0x047)
+#define DPSW_CMDID_IF_SET_BROADCAST         DPSW_CMD_ID(0x048)
+
+#define DPSW_CMDID_VLAN_ADD                 DPSW_CMD_ID(0x060)
+#define DPSW_CMDID_VLAN_ADD_IF              DPSW_CMD_ID(0x061)
+#define DPSW_CMDID_VLAN_ADD_IF_UNTAGGED     DPSW_CMD_ID(0x062)
+
+#define DPSW_CMDID_VLAN_REMOVE_IF           DPSW_CMD_ID(0x064)
+#define DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED  DPSW_CMD_ID(0x065)
+#define DPSW_CMDID_VLAN_REMOVE_IF_FLOODING  DPSW_CMD_ID(0x066)
+#define DPSW_CMDID_VLAN_REMOVE              DPSW_CMD_ID(0x067)
+
+#define DPSW_CMDID_FDB_ADD_UNICAST          DPSW_CMD_ID(0x084)
+#define DPSW_CMDID_FDB_REMOVE_UNICAST       DPSW_CMD_ID(0x085)
+#define DPSW_CMDID_FDB_ADD_MULTICAST        DPSW_CMD_ID(0x086)
+#define DPSW_CMDID_FDB_REMOVE_MULTICAST     DPSW_CMD_ID(0x087)
+#define DPSW_CMDID_FDB_SET_LEARNING_MODE    DPSW_CMD_ID(0x088)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPSW_MASK(field)        \
+	GENMASK(DPSW_##field##_SHIFT + DPSW_##field##_SIZE - 1, \
+		DPSW_##field##_SHIFT)
+#define dpsw_set_field(var, field, val) \
+	((var) |= (((val) << DPSW_##field##_SHIFT) & DPSW_MASK(field)))
+#define dpsw_get_field(var, field)      \
+	(((var) & DPSW_MASK(field)) >> DPSW_##field##_SHIFT)
+#define dpsw_get_bit(var, bit) \
+	(((var)  >> (bit)) & GENMASK(0, 0))
+
+struct dpsw_cmd_open {
+	__le32 dpsw_id;
+};
+
+#define DPSW_COMPONENT_TYPE_SHIFT	0
+#define DPSW_COMPONENT_TYPE_SIZE	4
+
+struct dpsw_cmd_create {
+	/* cmd word 0 */
+	__le16 num_ifs;
+	u8 max_fdbs;
+	u8 max_meters_per_if;
+	/* from LSB: only the first 4 bits */
+	u8 component_type;
+	u8 pad[3];
+	/* cmd word 1 */
+	__le16 max_vlans;
+	__le16 max_fdb_entries;
+	__le16 fdb_aging_time;
+	__le16 max_fdb_mc_groups;
+	/* cmd word 2 */
+	__le64 options;
+};
+
+struct dpsw_cmd_destroy {
+	__le32 dpsw_id;
+};
+
+#define DPSW_ENABLE_SHIFT 0
+#define DPSW_ENABLE_SIZE  1
+
+struct dpsw_rsp_is_enabled {
+	/* from LSB: enable:1 */
+	u8 enabled;
+};
+
+struct dpsw_cmd_set_irq_enable {
+	u8 enable_state;
+	u8 pad[3];
+	u8 irq_index;
+};
+
+struct dpsw_cmd_get_irq_enable {
+	__le32 pad;
+	u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_enable {
+	u8 enable_state;
+};
+
+struct dpsw_cmd_set_irq_mask {
+	__le32 mask;
+	u8 irq_index;
+};
+
+struct dpsw_cmd_get_irq_mask {
+	__le32 pad;
+	u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_mask {
+	__le32 mask;
+};
+
+struct dpsw_cmd_get_irq_status {
+	__le32 status;
+	u8 irq_index;
+};
+
+struct dpsw_rsp_get_irq_status {
+	__le32 status;
+};
+
+struct dpsw_cmd_clear_irq_status {
+	__le32 status;
+	u8 irq_index;
+};
+
+#define DPSW_COMPONENT_TYPE_SHIFT	0
+#define DPSW_COMPONENT_TYPE_SIZE	4
+
+struct dpsw_rsp_get_attr {
+	/* cmd word 0 */
+	__le16 num_ifs;
+	u8 max_fdbs;
+	u8 num_fdbs;
+	__le16 max_vlans;
+	__le16 num_vlans;
+	/* cmd word 1 */
+	__le16 max_fdb_entries;
+	__le16 fdb_aging_time;
+	__le32 dpsw_id;
+	/* cmd word 2 */
+	__le16 mem_size;
+	__le16 max_fdb_mc_groups;
+	u8 max_meters_per_if;
+	/* from LSB only the first 4 bits */
+	u8 component_type;
+	__le16 pad;
+	/* cmd word 3 */
+	__le64 options;
+};
+
+struct dpsw_cmd_if_set_flooding {
+	__le16 if_id;
+	/* from LSB: enable:1 */
+	u8 enable;
+};
+
+struct dpsw_cmd_if_set_broadcast {
+	__le16 if_id;
+	/* from LSB: enable:1 */
+	u8 enable;
+};
+
+#define DPSW_VLAN_ID_SHIFT	0
+#define DPSW_VLAN_ID_SIZE	12
+#define DPSW_DEI_SHIFT		12
+#define DPSW_DEI_SIZE		1
+#define DPSW_PCP_SHIFT		13
+#define DPSW_PCP_SIZE		3
+
+struct dpsw_cmd_if_set_tci {
+	__le16 if_id;
+	/* from LSB: VLAN_ID:12 DEI:1 PCP:3 */
+	__le16 conf;
+};
+
+#define DPSW_STATE_SHIFT	0
+#define DPSW_STATE_SIZE		4
+
+struct dpsw_cmd_if_set_stp {
+	__le16 if_id;
+	__le16 vlan_id;
+	/* only the first LSB 4 bits */
+	u8 state;
+};
+
+#define DPSW_COUNTER_TYPE_SHIFT		0
+#define DPSW_COUNTER_TYPE_SIZE		5
+
+struct dpsw_cmd_if_get_counter {
+	__le16 if_id;
+	/* from LSB: type:5 */
+	u8 type;
+};
+
+struct dpsw_rsp_if_get_counter {
+	__le64 pad;
+	__le64 counter;
+};
+
+struct dpsw_cmd_if {
+	__le16 if_id;
+};
+
+struct dpsw_cmd_if_set_max_frame_length {
+	__le16 if_id;
+	__le16 frame_length;
+};
+
+struct dpsw_cmd_if_get_link_state {
+	__le16 if_id;
+};
+
+#define DPSW_UP_SHIFT	0
+#define DPSW_UP_SIZE	1
+
+struct dpsw_rsp_if_get_link_state {
+	/* cmd word 0 */
+	__le32 pad0;
+	u8 up;
+	u8 pad1[3];
+	/* cmd word 1 */
+	__le32 rate;
+	__le32 pad2;
+	/* cmd word 2 */
+	__le64 options;
+};
+
+struct dpsw_vlan_add {
+	__le16 fdb_id;
+	__le16 vlan_id;
+};
+
+struct dpsw_cmd_vlan_manage_if {
+	/* cmd word 0 */
+	__le16 pad0;
+	__le16 vlan_id;
+	__le32 pad1;
+	/* cmd word 1-4 */
+	__le64 if_id[4];
+};
+
+struct dpsw_cmd_vlan_remove {
+	__le16 pad;
+	__le16 vlan_id;
+};
+
+struct dpsw_cmd_fdb_add {
+	__le32 pad;
+	__le16 fdb_aging_time;
+	__le16 num_fdb_entries;
+};
+
+struct dpsw_rsp_fdb_add {
+	__le16 fdb_id;
+};
+
+struct dpsw_cmd_fdb_remove {
+	__le16 fdb_id;
+};
+
+#define DPSW_ENTRY_TYPE_SHIFT	0
+#define DPSW_ENTRY_TYPE_SIZE	4
+
+struct dpsw_cmd_fdb_unicast_op {
+	/* cmd word 0 */
+	__le16 fdb_id;
+	u8 mac_addr[6];
+	/* cmd word 1 */
+	__le16 if_egress;
+	/* only the first 4 bits from LSB */
+	u8 type;
+};
+
+struct dpsw_cmd_fdb_multicast_op {
+	/* cmd word 0 */
+	__le16 fdb_id;
+	__le16 num_ifs;
+	/* only the first 4 bits from LSB */
+	u8 type;
+	u8 pad[3];
+	/* cmd word 1 */
+	u8 mac_addr[6];
+	__le16 pad2;
+	/* cmd word 2-5 */
+	__le64 if_id[4];
+};
+
+#define DPSW_LEARNING_MODE_SHIFT	0
+#define DPSW_LEARNING_MODE_SIZE		4
+
+struct dpsw_cmd_fdb_set_learning_mode {
+	__le16 fdb_id;
+	/* only the first 4 bits from LSB */
+	u8 mode;
+};
+
+struct dpsw_rsp_get_api_version {
+	__le16 version_major;
+	__le16 version_minor;
+};
+
+#endif /* __FSL_DPSW_CMD_H */