// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013-2016 Freescale Semiconductor, Inc.
- * Copyright 2017 NXP
+ * Copyright 2017, 2023 NXP
*/
#include <fsl-mc/fsl_mc_sys.h>
#include <fsl-mc/fsl_mc_cmd.h>
#include <fsl-mc/fsl_dpio.h>
-int dpio_open(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint32_t dpio_id,
- uint16_t *token)
+/**
+ * dpio_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_'
+ * @dpio_id: DPIO 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 dpio_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and any MC portals
+ * assigned to the parent container; this token must be used in
+ * all subsequent commands for this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpio_id,
+ u16 *token)
{
+ struct dpio_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
cmd_flags,
0);
- DPIO_CMD_OPEN(cmd, dpio_id);
+ cmd_params = (struct dpio_cmd_open *)cmd.params;
+ cmd_params->dpio_id = cpu_to_le32(dpio_id);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
return err;
/* retrieve response parameters */
- *token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+ *token = mc_cmd_hdr_read_token(&cmd);
return 0;
}
-int dpio_close(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token)
+/**
+ * dpio_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 DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
return mc_send_command(mc_io, &cmd);
}
-int dpio_create(struct fsl_mc_io *mc_io,
- uint16_t dprc_token,
- uint32_t cmd_flags,
- const struct dpio_cfg *cfg,
- uint32_t *obj_id)
+/**
+ * dpio_create() - Create the DPIO 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 DPIO 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 dpio_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
+ const struct dpio_cfg *cfg, u32 *obj_id)
{
+ struct dpio_cmd_create *cmd_params;
struct mc_command cmd = { 0 };
int err;
cmd.header = mc_encode_cmd_header(DPIO_CMDID_CREATE,
cmd_flags,
dprc_token);
- DPIO_CMD_CREATE(cmd, cfg);
+ cmd_params = (struct dpio_cmd_create *)cmd.params;
+ cmd_params->num_priorities = cfg->num_priorities;
+ dpio_set_field(cmd_params->channel_mode,
+ CHANNEL_MODE,
+ cfg->channel_mode);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
return err;
/* retrieve response parameters */
- MC_CMD_READ_OBJ_ID(cmd, *obj_id);
+ *obj_id = mc_cmd_read_object_id(&cmd);
return 0;
}
-int dpio_destroy(struct fsl_mc_io *mc_io,
- uint16_t dprc_token,
- uint32_t cmd_flags,
- uint32_t obj_id)
+/**
+ * dpio_destroy() - Destroy the DPIO 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 dpio_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
+ u32 object_id)
{
+ struct dpio_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_DESTROY,
- cmd_flags,
- dprc_token);
+ cmd_flags,
+ dprc_token);
/* set object id to destroy */
- CMD_DESTROY_SET_OBJ_ID_PARAM0(cmd, obj_id);
+ cmd_params = (struct dpio_cmd_destroy *)cmd.params;
+ cmd_params->dpio_id = cpu_to_le32(object_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
-int dpio_enable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token)
+/**
+ * dpio_enable() - Enable the DPIO, allow I/O portal operations.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
return mc_send_command(mc_io, &cmd);
}
-int dpio_disable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token)
+/**
+ * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
return mc_send_command(mc_io, &cmd);
}
-int dpio_get_attributes(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
+/**
+ * dpio_get_attributes() - Retrieve DPIO 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 DPIO object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
struct dpio_attr *attr)
{
+ struct dpio_rsp_get_attr *rsp_params;
struct mc_command cmd = { 0 };
int err;
return err;
/* retrieve response parameters */
- DPIO_RSP_GET_ATTR(cmd, attr);
+ rsp_params = (struct dpio_rsp_get_attr *)cmd.params;
+ attr->id = le32_to_cpu(rsp_params->id);
+ attr->qbman_portal_id = le16_to_cpu(rsp_params->qbman_portal_id);
+ attr->num_priorities = rsp_params->num_priorities;
+ attr->qbman_portal_ce_offset = le64_to_cpu(rsp_params->qbman_portal_ce_offset);
+ attr->qbman_portal_ci_offset = le64_to_cpu(rsp_params->qbman_portal_ci_offset);
+ attr->qbman_version = le32_to_cpu(rsp_params->qbman_version);
+ attr->clk = le32_to_cpu(rsp_params->clk);
+ attr->channel_mode = dpio_get_field(rsp_params->channel_mode, ATTR_CHANNEL_MODE);
return 0;
}
-int dpio_get_api_version(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 *major_ver,
- u16 *minor_ver)
+/**
+ * dpio_get_api_version() - Get Data Path I/O 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 i/o API
+ * @minor_ver: Minor version of data path i/o API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
+ u16 *major_ver, u16 *minor_ver)
{
struct mc_command cmd = { 0 };
int err;
- /* prepare command */
cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
- cmd_flags, 0);
+ cmd_flags,
+ 0);
- /* send command to mc */
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
- /* retrieve response parameters */
mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2013-2016 Freescale Semiconductor, Inc.
- * Copyright 2017 NXP
+ * Copyright 2017, 2023 NXP
*/
#ifndef _FSL_DPIO_H
#define DPIO_CMDID_DISABLE 0x0031
#define DPIO_CMDID_GET_ATTR 0x0041
-/* cmd, param, offset, width, type, arg_name */
-#define DPIO_CMD_OPEN(cmd, dpio_id) \
- MC_CMD_OP(cmd, 0, 0, 32, int, dpio_id)
-
-/* cmd, param, offset, width, type, arg_name */
-#define DPIO_CMD_CREATE(cmd, cfg) \
-do { \
- MC_CMD_OP(cmd, 0, 16, 2, enum dpio_channel_mode, \
- cfg->channel_mode);\
- MC_CMD_OP(cmd, 0, 32, 8, uint8_t, cfg->num_priorities);\
-} while (0)
-
-/* cmd, param, offset, width, type, arg_name */
-#define DPIO_RSP_GET_ATTR(cmd, attr) \
-do { \
- MC_RSP_OP(cmd, 0, 0, 32, int, attr->id);\
- MC_RSP_OP(cmd, 0, 32, 16, uint16_t, attr->qbman_portal_id);\
- MC_RSP_OP(cmd, 0, 48, 8, uint8_t, attr->num_priorities);\
- MC_RSP_OP(cmd, 0, 56, 4, enum dpio_channel_mode, attr->channel_mode);\
- MC_RSP_OP(cmd, 1, 0, 64, uint64_t, attr->qbman_portal_ce_offset);\
- MC_RSP_OP(cmd, 2, 0, 64, uint64_t, attr->qbman_portal_ci_offset);\
- MC_RSP_OP(cmd, 3, 32, 32, uint32_t, attr->qbman_version);\
-} while (0)
+/* Macros for accessing command fields smaller than 1byte */
+#define DPIO_MASK(field) \
+ GENMASK(DPIO_##field##_SHIFT + DPIO_##field##_SIZE - 1, \
+ DPIO_##field##_SHIFT)
+#define dpio_set_field(var, field, val) \
+ ((var) |= (((val) << DPIO_##field##_SHIFT) & DPIO_MASK(field)))
+#define dpio_get_field(var, field) \
+ (((var) & DPIO_MASK(field)) >> DPIO_##field##_SHIFT)
+
+#pragma pack(push, 1)
+struct dpio_cmd_open {
+ __le32 dpio_id;
+};
+
+#define DPIO_CHANNEL_MODE_SHIFT 0
+#define DPIO_CHANNEL_MODE_SIZE 2
+
+struct dpio_cmd_create {
+ __le16 pad1;
+ /* from LSB: channel_mode:2 */
+ u8 channel_mode;
+ u8 pad2;
+ u8 num_priorities;
+};
+
+struct dpio_cmd_destroy {
+ __le32 dpio_id;
+};
+
+#define DPIO_ATTR_CHANNEL_MODE_SHIFT 0
+#define DPIO_ATTR_CHANNEL_MODE_SIZE 4
+
+struct dpio_rsp_get_attr {
+ __le32 id;
+ __le16 qbman_portal_id;
+ u8 num_priorities;
+ /* from LSB: channel_mode:4 */
+ u8 channel_mode;
+ __le64 qbman_portal_ce_offset;
+ __le64 qbman_portal_ci_offset;
+ __le32 qbman_version;
+ __le32 pad;
+ __le32 clk;
+};
+
+#pragma pack(pop)
/* Data Path I/O Portal API
* Contains initialization APIs and runtime control APIs for DPIO
struct fsl_mc_io;
-/**
- * dpio_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_'
- * @dpio_id: DPIO 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 dpio_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 dpio_open(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint32_t dpio_id,
- uint16_t *token);
+int dpio_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpio_id,
+ u16 *token);
-/**
- * dpio_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 DPIO object
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpio_close(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
+int dpio_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
/**
* enum dpio_channel_mode - DPIO notification channel mode
- * @DPIO_NO_CHANNEL: No support for notification channel
- * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
+ * @DPIO_NO_CHANNEL: No support for notification channel
+ * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
* dedicated channel in the DPIO; user should point the queue's
* destination in the relevant interface to this DPIO
*/
/**
* struct dpio_cfg - Structure representing DPIO configuration
- * @channel_mode: Notification channel mode
- * @num_priorities: Number of priorities for the notification channel (1-8);
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
* relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
*/
struct dpio_cfg {
- enum dpio_channel_mode channel_mode;
- uint8_t num_priorities;
+ enum dpio_channel_mode channel_mode;
+ u8 num_priorities;
};
-/**
- * dpio_create() - Create the DPIO object.
- * @mc_io: Pointer to MC portal's I/O object
- * @token: Authentication token.
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @cfg: Configuration structure
- * @obj_id: Returned obj_id; use in subsequent API calls
- *
- * Create the DPIO 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.
- *
- * 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 calls to
- * this specific object. For objects that are created using the
- * DPL file, call dpio_open() function to get an authentication
- * token first.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpio_create(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint32_t cmd_flags,
- const struct dpio_cfg *cfg,
- uint32_t *obj_id);
+int dpio_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
+ const struct dpio_cfg *cfg, u32 *obj_id);
-/**
- * dpio_destroy() - Destroy the DPIO object and release all its resources.
- * @mc_io: Pointer to MC portal's I/O object
- * @token: Authentication token.
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @obj_id: Object ID of DPIO
- *
- * Return: '0' on Success; Error code otherwise
- */
-int dpio_destroy(struct fsl_mc_io *mc_io,
- uint16_t token,
- uint32_t cmd_flags,
- uint32_t obj_id);
+int dpio_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
+ u32 object_id);
-/**
- * dpio_enable() - Enable the DPIO, allow I/O portal operations.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPIO object
- *
- * Return: '0' on Success; Error code otherwise
- */
-int dpio_enable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
+int dpio_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
-/**
- * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPIO object
- *
- * Return: '0' on Success; Error code otherwise
- */
-int dpio_disable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
+int dpio_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
/**
* struct dpio_attr - Structure representing DPIO attributes
- * @id: DPIO object ID
- * @version: DPIO version
- * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
- * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
- * @qbman_portal_id: Software portal ID
- * @channel_mode: Notification channel mode
- * @num_priorities: Number of priorities for the notification channel (1-8);
- * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
- * @qbman_version: QBMAN version
+ * @id: DPIO object ID
+ * @qbman_portal_ce_offset: Offset of the software portal cache-enabled area
+ * @qbman_portal_ci_offset: Offset of the software portal
+ * cache-inhibited area
+ * @qbman_portal_id: Software portal ID
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification
+ * channel (1-8); relevant only if
+ * 'channel_mode = DPIO_LOCAL_CHANNEL'
+ * @qbman_version: QBMAN version
*/
struct dpio_attr {
- uint32_t id;
- uint64_t qbman_portal_ce_offset;
- uint64_t qbman_portal_ci_offset;
- uint16_t qbman_portal_id;
+ int id;
+ u64 qbman_portal_ce_offset;
+ u64 qbman_portal_ci_offset;
+ u16 qbman_portal_id;
enum dpio_channel_mode channel_mode;
- uint8_t num_priorities;
- uint32_t qbman_version;
+ u8 num_priorities;
+ u32 qbman_version;
+ u32 clk;
};
-/**
- * dpio_get_attributes() - Retrieve DPIO 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 DPIO object
- * @attr: Returned object's attributes
- *
- * Return: '0' on Success; Error code otherwise
- */
-int dpio_get_attributes(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- struct dpio_attr *attr);
-
-/**
- * dpio_get_api_version - Retrieve DPIO Major and Minor version info.
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @major_ver: DPIO major version
- * @minor_ver: DPIO minor version
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpio_get_api_version(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 *major_ver,
- u16 *minor_ver);
+int dpio_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
+ struct dpio_attr *attr);
+int dpio_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
+ u16 *major_ver, u16 *minor_ver);
#endif /* _FSL_DPIO_H */
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