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/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
*
* Copyright 2013-2016 Freescale Semiconductor Inc.
*
*/
#include <fsl_mc_sys.h>
#include <fsl_mc_cmd.h>
#include <fsl_dpci.h>
#include <fsl_dpci_cmd.h>
/**
* dpci_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_'
* @dpci_id: DPCI 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 dpci_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 dpci_open(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
int dpci_id,
uint16_t *token)
{
struct dpci_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_OPEN,
cmd_flags,
0);
cmd_params = (struct dpci_cmd_open *)cmd.params;
cmd_params->dpci_id = cpu_to_le32(dpci_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;
}
/**
* dpci_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 DPCI 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 dpci_close(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_CLOSE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpci_create() - Create the DPCI object.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @cfg: Configuration structure
* @obj_id: Returned object id
*
* Create the DPCI object, allocate required resources and perform required
* initialization.
*
* The object can be created either by declaring it in the
* DPL file, or by calling this function.
*
* The function accepts an authentication token of a parent
* container that this object should be assigned to. The token
* can be '0' so the object will be assigned to the default container.
* The newly created object can be opened with the returned
* object id and using the container's associated tokens and MC portals.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_create(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
uint32_t cmd_flags,
const struct dpci_cfg *cfg,
uint32_t *obj_id)
{
struct dpci_cmd_create *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_CREATE,
cmd_flags,
dprc_token);
cmd_params = (struct dpci_cmd_create *)cmd.params;
cmd_params->num_of_priorities = cfg->num_of_priorities;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
*obj_id = mc_cmd_read_object_id(&cmd);
return 0;
}
/**
* dpci_destroy() - Destroy the DPCI object and release all its resources.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @object_id: The object id; it must be a valid id within the container that
* created this object;
*
* The function accepts the authentication token of the parent container that
* created the object (not the one that currently owns the object). The object
* is searched within parent using the provided 'object_id'.
* All tokens to the object must be closed before calling destroy.
*
* Return: '0' on Success; error code otherwise.
*/
int dpci_destroy(struct fsl_mc_io *mc_io,
uint16_t dprc_token,
uint32_t cmd_flags,
uint32_t object_id)
{
struct dpci_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_DESTROY,
cmd_flags,
dprc_token);
cmd_params = (struct dpci_cmd_destroy *)cmd.params;
cmd_params->dpci_id = cpu_to_le32(object_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpci_enable() - Enable the DPCI, allow sending and receiving frames.
* @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
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_enable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_ENABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpci_disable() - Disable the DPCI, stop sending and receiving frames.
* @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
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_disable(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_DISABLE,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpci_is_enabled() - Check if the DPCI is enabled.
* @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
* @en: Returns '1' if object is enabled; '0' otherwise
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_is_enabled(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
int *en)
{
struct dpci_rsp_is_enabled *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_IS_ENABLED, cmd_flags,
token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpci_rsp_is_enabled *)cmd.params;
*en = dpci_get_field(rsp_params->en, ENABLE);
return 0;
}
/**
* dpci_reset() - Reset the DPCI, 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 DPCI object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_reset(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_RESET,
cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
int dpci_get_attributes(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
struct dpci_attr *attr)
{
struct dpci_rsp_get_attr *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_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 dpci_rsp_get_attr *)cmd.params;
attr->id = le32_to_cpu(rsp_params->id);
attr->num_of_priorities = rsp_params->num_of_priorities;
return 0;
}
int dpci_set_rx_queue(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
uint8_t priority,
const struct dpci_rx_queue_cfg *cfg)
{
struct dpci_cmd_set_rx_queue *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_SET_RX_QUEUE,
cmd_flags,
token);
cmd_params = (struct dpci_cmd_set_rx_queue *)cmd.params;
cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
cmd_params->dest_priority = cfg->dest_cfg.priority;
cmd_params->priority = priority;
cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
cmd_params->options = cpu_to_le32(cfg->options);
dpci_set_field(cmd_params->dest_type,
DEST_TYPE,
cfg->dest_cfg.dest_type);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpci_get_rx_queue() - Retrieve Rx queue 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 DPCI object
* @priority: Select the queue relative to number of
* priorities configured at DPCI creation
* @attr: Returned Rx queue attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_get_rx_queue(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
uint8_t priority,
struct dpci_rx_queue_attr *attr)
{
struct dpci_cmd_get_queue *cmd_params;
struct dpci_rsp_get_rx_queue *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_RX_QUEUE,
cmd_flags,
token);
cmd_params = (struct dpci_cmd_get_queue *)cmd.params;
cmd_params->priority = priority;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpci_rsp_get_rx_queue *)cmd.params;
attr->user_ctx = le64_to_cpu(rsp_params->user_ctx);
attr->fqid = le32_to_cpu(rsp_params->fqid);
attr->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
attr->dest_cfg.priority = rsp_params->dest_priority;
attr->dest_cfg.dest_type = dpci_get_field(rsp_params->dest_type,
DEST_TYPE);
return 0;
}
/**
* dpci_get_tx_queue() - Retrieve Tx queue 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 DPCI object
* @priority: Select the queue relative to number of
* priorities of the peer DPCI object
* @attr: Returned Tx queue attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_get_tx_queue(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
uint8_t priority,
struct dpci_tx_queue_attr *attr)
{
struct dpci_cmd_get_queue *cmd_params;
struct dpci_rsp_get_tx_queue *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_TX_QUEUE,
cmd_flags,
token);
cmd_params = (struct dpci_cmd_get_queue *)cmd.params;
cmd_params->priority = priority;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
rsp_params = (struct dpci_rsp_get_tx_queue *)cmd.params;
attr->fqid = le32_to_cpu(rsp_params->fqid);
return 0;
}
/**
* dpci_get_api_version() - Get communication interface 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 communication interface API
* @minor_ver: Minor version of data path communication interface API
*
* Return: '0' on Success; Error code otherwise.
*/
int dpci_get_api_version(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t *major_ver,
uint16_t *minor_ver)
{
struct dpci_rsp_get_api_version *rsp_params;
struct mc_command cmd = { 0 };
int err;
cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_API_VERSION,
cmd_flags,
0);
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
rsp_params = (struct dpci_rsp_get_api_version *)cmd.params;
*major_ver = le16_to_cpu(rsp_params->major);
*minor_ver = le16_to_cpu(rsp_params->minor);
return 0;
}
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