mirror of https://github.com/F-Stack/f-stack.git
474 lines
14 KiB
C
474 lines
14 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* BSD LICENSE
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*
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* Copyright 2013-2016 Freescale Semiconductor Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the above-listed copyright holders nor the
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* names of any contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* GPL LICENSE SUMMARY
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <fsl_mc_sys.h>
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#include <fsl_mc_cmd.h>
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#include <fsl_dpci.h>
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#include <fsl_dpci_cmd.h>
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/**
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* dpci_open() - Open a control session for the specified object
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @dpci_id: DPCI unique ID
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* @token: Returned token; use in subsequent API calls
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*
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* This function can be used to open a control session for an
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* already created object; an object may have been declared in
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* the DPL or by calling the dpci_create() function.
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* This function returns a unique authentication token,
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* associated with the specific object ID and the specific MC
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* portal; this token must be used in all subsequent commands for
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* this specific object.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_open(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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int dpci_id,
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uint16_t *token)
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{
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struct dpci_cmd_open *cmd_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_OPEN,
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cmd_flags,
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0);
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cmd_params = (struct dpci_cmd_open *)cmd.params;
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cmd_params->dpci_id = cpu_to_le32(dpci_id);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*token = mc_cmd_hdr_read_token(&cmd);
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return 0;
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}
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/**
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* dpci_close() - Close the control session of the object
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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*
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* After this function is called, no further operations are
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* allowed on the object without opening a new control session.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_close(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_CLOSE,
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cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpci_create() - Create the DPCI object.
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* @mc_io: Pointer to MC portal's I/O object
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* @dprc_token: Parent container token; '0' for default container
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @cfg: Configuration structure
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* @obj_id: Returned object id
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*
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* Create the DPCI object, allocate required resources and perform required
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* initialization.
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*
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* The object can be created either by declaring it in the
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* DPL file, or by calling this function.
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*
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* The function accepts an authentication token of a parent
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* container that this object should be assigned to. The token
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* can be '0' so the object will be assigned to the default container.
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* The newly created object can be opened with the returned
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* object id and using the container's associated tokens and MC portals.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_create(struct fsl_mc_io *mc_io,
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uint16_t dprc_token,
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uint32_t cmd_flags,
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const struct dpci_cfg *cfg,
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uint32_t *obj_id)
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{
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struct dpci_cmd_create *cmd_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_CREATE,
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cmd_flags,
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dprc_token);
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cmd_params = (struct dpci_cmd_create *)cmd.params;
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cmd_params->num_of_priorities = cfg->num_of_priorities;
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*obj_id = mc_cmd_read_object_id(&cmd);
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return 0;
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}
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/**
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* dpci_destroy() - Destroy the DPCI object and release all its resources.
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* @mc_io: Pointer to MC portal's I/O object
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* @dprc_token: Parent container token; '0' for default container
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @object_id: The object id; it must be a valid id within the container that
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* created this object;
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*
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* The function accepts the authentication token of the parent container that
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* created the object (not the one that currently owns the object). The object
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* is searched within parent using the provided 'object_id'.
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* All tokens to the object must be closed before calling destroy.
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*
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* Return: '0' on Success; error code otherwise.
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*/
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int dpci_destroy(struct fsl_mc_io *mc_io,
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uint16_t dprc_token,
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uint32_t cmd_flags,
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uint32_t object_id)
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{
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struct dpci_cmd_destroy *cmd_params;
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_DESTROY,
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cmd_flags,
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dprc_token);
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cmd_params = (struct dpci_cmd_destroy *)cmd.params;
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cmd_params->dpci_id = cpu_to_le32(object_id);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpci_enable() - Enable the DPCI, allow sending and receiving frames.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_enable(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_ENABLE,
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cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpci_disable() - Disable the DPCI, stop sending and receiving frames.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_disable(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_DISABLE,
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cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpci_is_enabled() - Check if the DPCI is enabled.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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* @en: Returns '1' if object is enabled; '0' otherwise
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_is_enabled(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token,
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int *en)
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{
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struct dpci_rsp_is_enabled *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_IS_ENABLED, cmd_flags,
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token);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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rsp_params = (struct dpci_rsp_is_enabled *)cmd.params;
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*en = dpci_get_field(rsp_params->en, ENABLE);
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return 0;
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}
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/**
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* dpci_reset() - Reset the DPCI, returns the object to initial state.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_reset(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_RESET,
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cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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int dpci_get_attributes(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token,
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struct dpci_attr *attr)
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{
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struct dpci_rsp_get_attr *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_ATTR,
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cmd_flags,
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token);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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rsp_params = (struct dpci_rsp_get_attr *)cmd.params;
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attr->id = le32_to_cpu(rsp_params->id);
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attr->num_of_priorities = rsp_params->num_of_priorities;
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return 0;
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}
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int dpci_set_rx_queue(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token,
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uint8_t priority,
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const struct dpci_rx_queue_cfg *cfg)
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{
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struct dpci_cmd_set_rx_queue *cmd_params;
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_SET_RX_QUEUE,
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cmd_flags,
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token);
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cmd_params = (struct dpci_cmd_set_rx_queue *)cmd.params;
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cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
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cmd_params->dest_priority = cfg->dest_cfg.priority;
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cmd_params->priority = priority;
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cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
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cmd_params->options = cpu_to_le32(cfg->options);
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dpci_set_field(cmd_params->dest_type,
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DEST_TYPE,
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cfg->dest_cfg.dest_type);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpci_get_rx_queue() - Retrieve Rx queue attributes.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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* @priority: Select the queue relative to number of
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* priorities configured at DPCI creation
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* @attr: Returned Rx queue attributes
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_get_rx_queue(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token,
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uint8_t priority,
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struct dpci_rx_queue_attr *attr)
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{
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struct dpci_cmd_get_queue *cmd_params;
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struct dpci_rsp_get_rx_queue *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_RX_QUEUE,
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cmd_flags,
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token);
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cmd_params = (struct dpci_cmd_get_queue *)cmd.params;
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cmd_params->priority = priority;
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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rsp_params = (struct dpci_rsp_get_rx_queue *)cmd.params;
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attr->user_ctx = le64_to_cpu(rsp_params->user_ctx);
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attr->fqid = le32_to_cpu(rsp_params->fqid);
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attr->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
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attr->dest_cfg.priority = rsp_params->dest_priority;
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attr->dest_cfg.dest_type = dpci_get_field(rsp_params->dest_type,
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DEST_TYPE);
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return 0;
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}
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/**
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* dpci_get_tx_queue() - Retrieve Tx queue attributes.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPCI object
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* @priority: Select the queue relative to number of
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* priorities of the peer DPCI object
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* @attr: Returned Tx queue attributes
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_get_tx_queue(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t token,
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uint8_t priority,
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struct dpci_tx_queue_attr *attr)
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{
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struct dpci_cmd_get_queue *cmd_params;
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struct dpci_rsp_get_tx_queue *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_TX_QUEUE,
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cmd_flags,
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token);
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cmd_params = (struct dpci_cmd_get_queue *)cmd.params;
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cmd_params->priority = priority;
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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rsp_params = (struct dpci_rsp_get_tx_queue *)cmd.params;
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attr->fqid = le32_to_cpu(rsp_params->fqid);
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return 0;
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}
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/**
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* dpci_get_api_version() - Get communication interface API version
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @major_ver: Major version of data path communication interface API
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* @minor_ver: Minor version of data path communication interface API
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpci_get_api_version(struct fsl_mc_io *mc_io,
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uint32_t cmd_flags,
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uint16_t *major_ver,
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uint16_t *minor_ver)
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{
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struct dpci_rsp_get_api_version *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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cmd.header = mc_encode_cmd_header(DPCI_CMDID_GET_API_VERSION,
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cmd_flags,
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0);
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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rsp_params = (struct dpci_rsp_get_api_version *)cmd.params;
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*major_ver = le16_to_cpu(rsp_params->major);
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*minor_ver = le16_to_cpu(rsp_params->minor);
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return 0;
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}
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