// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright 2014-2016 Freescale Semiconductor Inc.
 * Copyright 2017-2018 NXP
 *
 */

#include <linux/fsl/mc.h>
#include "dpsw.h"
#include "dpsw-cmd.h"

static void build_if_id_bitmap(__le64 *bmap,
                               const u16 *id,
                               const u16 num_ifs)
{
        int i;

        for (i = 0; (i < num_ifs) && (i < DPSW_MAX_IF); i++) {
                if (id[i] < DPSW_MAX_IF)
                        bmap[id[i] / 64] |= cpu_to_le64(BIT_MASK(id[i] % 64));
        }
}

/**
 * dpsw_open() - Open a control session for the specified object
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @dpsw_id:    DPSW unique ID
 * @token:      Returned token; use in subsequent API calls
 *
 * This function can be used to open a control session for an
 * already created object; an object may have been declared in
 * the DPL or by calling the dpsw_create() function.
 * This function returns a unique authentication token,
 * associated with the specific object ID and the specific MC
 * portal; this token must be used in all subsequent commands for
 * this specific object
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_open(struct fsl_mc_io *mc_io,
              u32 cmd_flags,
              int dpsw_id,
              u16 *token)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_open *cmd_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_OPEN,
                                          cmd_flags,
                                          0);
        cmd_params = (struct dpsw_cmd_open *)cmd.params;
        cmd_params->dpsw_id = cpu_to_le32(dpsw_id);

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        *token = mc_cmd_hdr_read_token(&cmd);

        return 0;
}

/**
 * dpsw_close() - Close the control session of the object
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 *
 * After this function is called, no further operations are
 * allowed on the object without opening a new control session.
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_close(struct fsl_mc_io *mc_io,
               u32 cmd_flags,
               u16 token)
{
        struct fsl_mc_command cmd = { 0 };

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLOSE,
                                          cmd_flags,
                                          token);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_enable() - Enable DPSW functionality
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_enable(struct fsl_mc_io *mc_io,
                u32 cmd_flags,
                u16 token)
{
        struct fsl_mc_command cmd = { 0 };

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_ENABLE,
                                          cmd_flags,
                                          token);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_disable() - Disable DPSW functionality
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_disable(struct fsl_mc_io *mc_io,
                 u32 cmd_flags,
                 u16 token)
{
        struct fsl_mc_command cmd = { 0 };

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_DISABLE,
                                          cmd_flags,
                                          token);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_reset() - Reset the DPSW, returns the object to initial state.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_reset(struct fsl_mc_io *mc_io,
               u32 cmd_flags,
               u16 token)
{
        struct fsl_mc_command cmd = { 0 };

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_RESET,
                                          cmd_flags,
                                          token);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_set_irq_enable() - Set overall interrupt state.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPCI object
 * @irq_index:  The interrupt index to configure
 * @en:         Interrupt state - enable = 1, disable = 0
 *
 * Allows GPP software to control when interrupts are generated.
 * Each interrupt can have up to 32 causes.  The enable/disable control's the
 * overall interrupt state. if the interrupt is disabled no causes will cause
 * an interrupt
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_set_irq_enable(struct fsl_mc_io *mc_io,
                        u32 cmd_flags,
                        u16 token,
                        u8 irq_index,
                        u8 en)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_set_irq_enable *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_ENABLE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_set_irq_enable *)cmd.params;
        dpsw_set_field(cmd_params->enable_state, ENABLE, en);
        cmd_params->irq_index = irq_index;

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_set_irq_mask() - Set interrupt mask.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPCI object
 * @irq_index:  The interrupt index to configure
 * @mask:       Event mask to trigger interrupt;
 *              each bit:
 *                      0 = ignore event
 *                      1 = consider event for asserting IRQ
 *
 * Every interrupt can have up to 32 causes and the interrupt model supports
 * masking/unmasking each cause independently
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_set_irq_mask(struct fsl_mc_io *mc_io,
                      u32 cmd_flags,
                      u16 token,
                      u8 irq_index,
                      u32 mask)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_set_irq_mask *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_MASK,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_set_irq_mask *)cmd.params;
        cmd_params->mask = cpu_to_le32(mask);
        cmd_params->irq_index = irq_index;

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_get_irq_status() - Get the current status of any pending interrupts
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @irq_index:  The interrupt index to configure
 * @status:     Returned interrupts status - one bit per cause:
 *                      0 = no interrupt pending
 *                      1 = interrupt pending
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_get_irq_status(struct fsl_mc_io *mc_io,
                        u32 cmd_flags,
                        u16 token,
                        u8 irq_index,
                        u32 *status)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_get_irq_status *cmd_params;
        struct dpsw_rsp_get_irq_status *rsp_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_IRQ_STATUS,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_get_irq_status *)cmd.params;
        cmd_params->status = cpu_to_le32(*status);
        cmd_params->irq_index = irq_index;

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        rsp_params = (struct dpsw_rsp_get_irq_status *)cmd.params;
        *status = le32_to_cpu(rsp_params->status);

        return 0;
}

/**
 * dpsw_clear_irq_status() - Clear a pending interrupt's status
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPCI object
 * @irq_index:  The interrupt index to configure
 * @status:     bits to clear (W1C) - one bit per cause:
 *                      0 = don't change
 *                      1 = clear status bit
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_clear_irq_status(struct fsl_mc_io *mc_io,
                          u32 cmd_flags,
                          u16 token,
                          u8 irq_index,
                          u32 status)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_clear_irq_status *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLEAR_IRQ_STATUS,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_clear_irq_status *)cmd.params;
        cmd_params->status = cpu_to_le32(status);
        cmd_params->irq_index = irq_index;

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_get_attributes() - Retrieve DPSW attributes
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @attr:       Returned DPSW attributes
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_get_attributes(struct fsl_mc_io *mc_io,
                        u32 cmd_flags,
                        u16 token,
                        struct dpsw_attr *attr)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_rsp_get_attr *rsp_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_ATTR,
                                          cmd_flags,
                                          token);

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        rsp_params = (struct dpsw_rsp_get_attr *)cmd.params;
        attr->num_ifs = le16_to_cpu(rsp_params->num_ifs);
        attr->max_fdbs = rsp_params->max_fdbs;
        attr->num_fdbs = rsp_params->num_fdbs;
        attr->max_vlans = le16_to_cpu(rsp_params->max_vlans);
        attr->num_vlans = le16_to_cpu(rsp_params->num_vlans);
        attr->max_fdb_entries = le16_to_cpu(rsp_params->max_fdb_entries);
        attr->fdb_aging_time = le16_to_cpu(rsp_params->fdb_aging_time);
        attr->id = le32_to_cpu(rsp_params->dpsw_id);
        attr->mem_size = le16_to_cpu(rsp_params->mem_size);
        attr->max_fdb_mc_groups = le16_to_cpu(rsp_params->max_fdb_mc_groups);
        attr->max_meters_per_if = rsp_params->max_meters_per_if;
        attr->options = le64_to_cpu(rsp_params->options);
        attr->component_type = dpsw_get_field(rsp_params->component_type,
                                              COMPONENT_TYPE);

        return 0;
}

/**
 * dpsw_if_set_link_cfg() - Set the link configuration.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface id
 * @cfg:        Link configuration
 *
 * Return:      '0' on Success; Error code otherwise.
 */
int dpsw_if_set_link_cfg(struct fsl_mc_io *mc_io,
                         u32 cmd_flags,
                         u16 token,
                         u16 if_id,
                         struct dpsw_link_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_link_cfg *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_LINK_CFG,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_link_cfg *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        cmd_params->rate = cpu_to_le32(cfg->rate);
        cmd_params->options = cpu_to_le64(cfg->options);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_get_link_state - Return the link state
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface id
 * @state:      Link state      1 - linkup, 0 - link down or disconnected
 *
 * @Return      '0' on Success; Error code otherwise.
 */
int dpsw_if_get_link_state(struct fsl_mc_io *mc_io,
                           u32 cmd_flags,
                           u16 token,
                           u16 if_id,
                           struct dpsw_link_state *state)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_get_link_state *cmd_params;
        struct dpsw_rsp_if_get_link_state *rsp_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_LINK_STATE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_get_link_state *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        rsp_params = (struct dpsw_rsp_if_get_link_state *)cmd.params;
        state->rate = le32_to_cpu(rsp_params->rate);
        state->options = le64_to_cpu(rsp_params->options);
        state->up = dpsw_get_field(rsp_params->up, UP);

        return 0;
}

/**
 * dpsw_if_set_flooding() - Enable Disable flooding for particular interface
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @en:         1 - enable, 0 - disable
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_set_flooding(struct fsl_mc_io *mc_io,
                         u32 cmd_flags,
                         u16 token,
                         u16 if_id,
                         u8 en)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_flooding *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_FLOODING,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_flooding *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        dpsw_set_field(cmd_params->enable, ENABLE, en);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_set_broadcast() - Enable/disable broadcast for particular interface
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @en:         1 - enable, 0 - disable
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_set_broadcast(struct fsl_mc_io *mc_io,
                          u32 cmd_flags,
                          u16 token,
                          u16 if_id,
                          u8 en)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_broadcast *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_BROADCAST,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_broadcast *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        dpsw_set_field(cmd_params->enable, ENABLE, en);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_set_tci() - Set default VLAN Tag Control Information (TCI)
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @cfg:        Tag Control Information Configuration
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_set_tci(struct fsl_mc_io *mc_io,
                    u32 cmd_flags,
                    u16 token,
                    u16 if_id,
                    const struct dpsw_tci_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_tci *cmd_params;
        u16 tmp_conf = 0;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_TCI,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_tci *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        dpsw_set_field(tmp_conf, VLAN_ID, cfg->vlan_id);
        dpsw_set_field(tmp_conf, DEI, cfg->dei);
        dpsw_set_field(tmp_conf, PCP, cfg->pcp);
        cmd_params->conf = cpu_to_le16(tmp_conf);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_get_tci() - Get default VLAN Tag Control Information (TCI)
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @cfg:        Tag Control Information Configuration
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_get_tci(struct fsl_mc_io *mc_io,
                    u32 cmd_flags,
                    u16 token,
                    u16 if_id,
                    struct dpsw_tci_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_get_tci *cmd_params;
        struct dpsw_rsp_if_get_tci *rsp_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_TCI,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_get_tci *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        rsp_params = (struct dpsw_rsp_if_get_tci *)cmd.params;
        cfg->pcp = rsp_params->pcp;
        cfg->dei = rsp_params->dei;
        cfg->vlan_id = le16_to_cpu(rsp_params->vlan_id);

        return 0;
}

/**
 * dpsw_if_set_stp() - Function sets Spanning Tree Protocol (STP) state.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @cfg:        STP State configuration parameters
 *
 * The following STP states are supported -
 * blocking, listening, learning, forwarding and disabled.
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_set_stp(struct fsl_mc_io *mc_io,
                    u32 cmd_flags,
                    u16 token,
                    u16 if_id,
                    const struct dpsw_stp_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_stp *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_STP,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_stp *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        cmd_params->vlan_id = cpu_to_le16(cfg->vlan_id);
        dpsw_set_field(cmd_params->state, STATE, cfg->state);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_get_counter() - Get specific counter of particular interface
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 * @type:       Counter type
 * @counter:    return value
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_get_counter(struct fsl_mc_io *mc_io,
                        u32 cmd_flags,
                        u16 token,
                        u16 if_id,
                        enum dpsw_counter type,
                        u64 *counter)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_get_counter *cmd_params;
        struct dpsw_rsp_if_get_counter *rsp_params;
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_COUNTER,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_get_counter *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        dpsw_set_field(cmd_params->type, COUNTER_TYPE, type);

        /* send command to mc*/
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        /* retrieve response parameters */
        rsp_params = (struct dpsw_rsp_if_get_counter *)cmd.params;
        *counter = le64_to_cpu(rsp_params->counter);

        return 0;
}

/**
 * dpsw_if_enable() - Enable Interface
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_enable(struct fsl_mc_io *mc_io,
                   u32 cmd_flags,
                   u16 token,
                   u16 if_id)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_ENABLE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_disable() - Disable Interface
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @if_id:      Interface Identifier
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_disable(struct fsl_mc_io *mc_io,
                    u32 cmd_flags,
                    u16 token,
                    u16 if_id)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_DISABLE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_if_set_max_frame_length() - Set Maximum Receive frame length.
 * @mc_io:              Pointer to MC portal's I/O object
 * @cmd_flags:          Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:              Token of DPSW object
 * @if_id:              Interface Identifier
 * @frame_length:       Maximum Frame Length
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_if_set_max_frame_length(struct fsl_mc_io *mc_io,
                                 u32 cmd_flags,
                                 u16 token,
                                 u16 if_id,
                                 u16 frame_length)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_if_set_max_frame_length *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_if_set_max_frame_length *)cmd.params;
        cmd_params->if_id = cpu_to_le16(if_id);
        cmd_params->frame_length = cpu_to_le16(frame_length);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_add() - Adding new VLAN to DPSW.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 * @cfg:        VLAN configuration
 *
 * Only VLAN ID and FDB ID are required parameters here.
 * 12 bit VLAN ID is defined in IEEE802.1Q.
 * Adding a duplicate VLAN ID is not allowed.
 * FDB ID can be shared across multiple VLANs. Shared learning
 * is obtained by calling dpsw_vlan_add for multiple VLAN IDs
 * with same fdb_id
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_add(struct fsl_mc_io *mc_io,
                  u32 cmd_flags,
                  u16 token,
                  u16 vlan_id,
                  const struct dpsw_vlan_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_vlan_add *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_vlan_add *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(cfg->fdb_id);
        cmd_params->vlan_id = cpu_to_le16(vlan_id);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_add_if() - Adding a set of interfaces to an existing VLAN.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 * @cfg:        Set of interfaces to add
 *
 * It adds only interfaces not belonging to this VLAN yet,
 * otherwise an error is generated and an entire command is
 * ignored. This function can be called numerous times always
 * providing required interfaces delta.
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_add_if(struct fsl_mc_io *mc_io,
                     u32 cmd_flags,
                     u16 token,
                     u16 vlan_id,
                     const struct dpsw_vlan_if_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_vlan_manage_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
        cmd_params->vlan_id = cpu_to_le16(vlan_id);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_add_if_untagged() - Defining a set of interfaces that should be
 *                              transmitted as untagged.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 * @cfg:        Set of interfaces that should be transmitted as untagged
 *
 * These interfaces should already belong to this VLAN.
 * By default all interfaces are transmitted as tagged.
 * Providing un-existing interface or untagged interface that is
 * configured untagged already generates an error and the entire
 * command is ignored.
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_add_if_untagged(struct fsl_mc_io *mc_io,
                              u32 cmd_flags,
                              u16 token,
                              u16 vlan_id,
                              const struct dpsw_vlan_if_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_vlan_manage_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF_UNTAGGED,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
        cmd_params->vlan_id = cpu_to_le16(vlan_id);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_remove_if() - Remove interfaces from an existing VLAN.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 * @cfg:        Set of interfaces that should be removed
 *
 * Interfaces must belong to this VLAN, otherwise an error
 * is returned and an the command is ignored
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_remove_if(struct fsl_mc_io *mc_io,
                        u32 cmd_flags,
                        u16 token,
                        u16 vlan_id,
                        const struct dpsw_vlan_if_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_vlan_manage_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
        cmd_params->vlan_id = cpu_to_le16(vlan_id);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_remove_if_untagged() - Define a set of interfaces that should be
 *              converted from transmitted as untagged to transmit as tagged.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 * @cfg:        Set of interfaces that should be removed
 *
 * Interfaces provided by API have to belong to this VLAN and
 * configured untagged, otherwise an error is returned and the
 * command is ignored
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_remove_if_untagged(struct fsl_mc_io *mc_io,
                                 u32 cmd_flags,
                                 u16 token,
                                 u16 vlan_id,
                                 const struct dpsw_vlan_if_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_vlan_manage_if *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params;
        cmd_params->vlan_id = cpu_to_le16(vlan_id);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_vlan_remove() - Remove an entire VLAN
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @vlan_id:    VLAN Identifier
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_vlan_remove(struct fsl_mc_io *mc_io,
                     u32 cmd_flags,
                     u16 token,
                     u16 vlan_id)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_vlan_remove *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_vlan_remove *)cmd.params;
        cmd_params->vlan_id = cpu_to_le16(vlan_id);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_fdb_add_unicast() - Function adds an unicast entry into MAC lookup table
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @cfg:        Unicast entry configuration
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_fdb_add_unicast(struct fsl_mc_io *mc_io,
                         u32 cmd_flags,
                         u16 token,
                         u16 fdb_id,
                         const struct dpsw_fdb_unicast_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_fdb_unicast_op *cmd_params;
        int i;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_UNICAST,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        cmd_params->if_egress = cpu_to_le16(cfg->if_egress);
        for (i = 0; i < 6; i++)
                cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
        dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_fdb_dump() - Dump the content of FDB table into memory.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @iova_addr:  Data will be stored here as an array of struct fdb_dump_entry
 * @iova_size:  Memory size allocated at iova_addr
 * @num_entries:Number of entries written at iova_addr
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 *
 * The memory allocated at iova_addr must be initialized with zero before
 * command execution. If the FDB table does not fit into memory MC will stop
 * after the memory is filled up.
 * The struct fdb_dump_entry array must be parsed until the end of memory
 * area or until an entry with mac_addr set to zero is found.
 */

int dpsw_fdb_dump(struct fsl_mc_io *mc_io,
                  u32 cmd_flags,
                  u16 token,
                  u16 fdb_id,
                  u64 iova_addr,
                  u32 iova_size,
                  u16 *num_entries)
{
        struct dpsw_cmd_fdb_dump *cmd_params;
        struct dpsw_rsp_fdb_dump *rsp_params;
        struct fsl_mc_command cmd = { 0 };
        int err;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_DUMP,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_dump *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        cmd_params->iova_addr = cpu_to_le64(iova_addr);
        cmd_params->iova_size = cpu_to_le32(iova_size);

        /* send command to mc */
        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        rsp_params = (struct dpsw_rsp_fdb_dump *)cmd.params;
        *num_entries = le16_to_cpu(rsp_params->num_entries);

        return 0;
}

/**
 * dpsw_fdb_remove_unicast() - removes an entry from MAC lookup table
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @cfg:        Unicast entry configuration
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_fdb_remove_unicast(struct fsl_mc_io *mc_io,
                            u32 cmd_flags,
                            u16 token,
                            u16 fdb_id,
                            const struct dpsw_fdb_unicast_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_fdb_unicast_op *cmd_params;
        int i;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_UNICAST,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        for (i = 0; i < 6; i++)
                cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];
        cmd_params->if_egress = cpu_to_le16(cfg->if_egress);
        dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_fdb_add_multicast() - Add a set of egress interfaces to multi-cast group
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @cfg:        Multicast entry configuration
 *
 * If group doesn't exist, it will be created.
 * It adds only interfaces not belonging to this multicast group
 * yet, otherwise error will be generated and the command is
 * ignored.
 * This function may be called numerous times always providing
 * required interfaces delta.
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_fdb_add_multicast(struct fsl_mc_io *mc_io,
                           u32 cmd_flags,
                           u16 token,
                           u16 fdb_id,
                           const struct dpsw_fdb_multicast_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_fdb_multicast_op *cmd_params;
        int i;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_MULTICAST,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs);
        dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
        for (i = 0; i < 6; i++)
                cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_fdb_remove_multicast() - Removing interfaces from an existing multicast
 *                              group.
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @cfg:        Multicast entry configuration
 *
 * Interfaces provided by this API have to exist in the group,
 * otherwise an error will be returned and an entire command
 * ignored. If there is no interface left in the group,
 * an entire group is deleted
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_fdb_remove_multicast(struct fsl_mc_io *mc_io,
                              u32 cmd_flags,
                              u16 token,
                              u16 fdb_id,
                              const struct dpsw_fdb_multicast_cfg *cfg)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_fdb_multicast_op *cmd_params;
        int i;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_MULTICAST,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs);
        dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type);
        build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs);
        for (i = 0; i < 6; i++)
                cmd_params->mac_addr[i] = cfg->mac_addr[5 - i];

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_fdb_set_learning_mode() - Define FDB learning mode
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:      Token of DPSW object
 * @fdb_id:     Forwarding Database Identifier
 * @mode:       Learning mode
 *
 * Return:      Completion status. '0' on Success; Error code otherwise.
 */
int dpsw_fdb_set_learning_mode(struct fsl_mc_io *mc_io,
                               u32 cmd_flags,
                               u16 token,
                               u16 fdb_id,
                               enum dpsw_fdb_learning_mode mode)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_cmd_fdb_set_learning_mode *cmd_params;

        /* prepare command */
        cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_SET_LEARNING_MODE,
                                          cmd_flags,
                                          token);
        cmd_params = (struct dpsw_cmd_fdb_set_learning_mode *)cmd.params;
        cmd_params->fdb_id = cpu_to_le16(fdb_id);
        dpsw_set_field(cmd_params->mode, LEARNING_MODE, mode);

        /* send command to mc*/
        return mc_send_command(mc_io, &cmd);
}

/**
 * dpsw_get_api_version() - Get Data Path Switch API version
 * @mc_io:      Pointer to MC portal's I/O object
 * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 * @major_ver:  Major version of data path switch API
 * @minor_ver:  Minor version of data path switch API
 *
 * Return:  '0' on Success; Error code otherwise.
 */
int dpsw_get_api_version(struct fsl_mc_io *mc_io,
                         u32 cmd_flags,
                         u16 *major_ver,
                         u16 *minor_ver)
{
        struct fsl_mc_command cmd = { 0 };
        struct dpsw_rsp_get_api_version *rsp_params;
        int err;

        cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_API_VERSION,
                                          cmd_flags,
                                          0);

        err = mc_send_command(mc_io, &cmd);
        if (err)
                return err;

        rsp_params = (struct dpsw_rsp_get_api_version *)cmd.params;
        *major_ver = le16_to_cpu(rsp_params->version_major);
        *minor_ver = le16_to_cpu(rsp_params->version_minor);

        return 0;
}