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path: root/drivers/bus/fslmc/mc/dpdmai.c
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-rw-r--r--drivers/bus/fslmc/mc/dpdmai.c429
1 files changed, 429 insertions, 0 deletions
diff --git a/drivers/bus/fslmc/mc/dpdmai.c b/drivers/bus/fslmc/mc/dpdmai.c
new file mode 100644
index 00000000..528889df
--- /dev/null
+++ b/drivers/bus/fslmc/mc/dpdmai.c
@@ -0,0 +1,429 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#include <fsl_mc_sys.h>
+#include <fsl_mc_cmd.h>
+#include <fsl_dpdmai.h>
+#include <fsl_dpdmai_cmd.h>
+
+/**
+ * dpdmai_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_'
+ * @dpdmai_id: DPDMAI 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 dpdmai_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 dpdmai_open(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ int dpdmai_id,
+ uint16_t *token)
+{
+ struct dpdmai_cmd_open *cmd_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpdmai_cmd_open *)cmd.params;
+ cmd_params->dpdmai_id = cpu_to_le32(dpdmai_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;
+}
+
+/**
+ * dpdmai_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 DPDMAI 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 dpdmai_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(DPDMAI_CMDID_CLOSE,
+ cmd_flags, token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_create() - Create the DPDMAI 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 DPDMAI 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 dpdmai_create(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ const struct dpdmai_cfg *cfg,
+ uint32_t *obj_id)
+{
+ struct dpdmai_cmd_create *cmd_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpdmai_cmd_create *)cmd.params;
+ cmd_params->priorities[0] = cfg->priorities[0];
+ cmd_params->priorities[1] = cfg->priorities[1];
+
+ /* 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;
+}
+
+/**
+ * dpdmai_destroy() - Destroy the DPDMAI 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 dpdmai_destroy(struct fsl_mc_io *mc_io,
+ uint16_t dprc_token,
+ uint32_t cmd_flags,
+ uint32_t object_id)
+{
+ struct dpdmai_cmd_destroy *cmd_params;
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DESTROY,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpdmai_cmd_destroy *)cmd.params;
+ cmd_params->dpdmai_id = cpu_to_le32(object_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_enable() - Enable the DPDMAI, 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 DPDMAI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_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(DPDMAI_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_disable() - Disable the DPDMAI, 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 DPDMAI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_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(DPDMAI_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_is_enabled() - Check if the DPDMAI 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 DPDMAI object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_is_enabled(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ int *en)
+{
+ struct dpdmai_rsp_is_enabled *rsp_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_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 dpdmai_rsp_is_enabled *)cmd.params;
+ *en = dpdmai_get_field(rsp_params->en, ENABLE);
+
+ return 0;
+}
+
+/**
+ * dpdmai_reset() - Reset the DPDMAI, 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 DPDMAI object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_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(DPDMAI_CMDID_RESET,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_get_attributes() - Retrieve DPDMAI 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 DPDMAI object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_get_attributes(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ struct dpdmai_attr *attr)
+{
+ struct dpdmai_rsp_get_attr *rsp_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_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 dpdmai_rsp_get_attr *)cmd.params;
+ attr->id = le32_to_cpu(rsp_params->id);
+ attr->num_of_priorities = rsp_params->num_of_priorities;
+
+ return 0;
+}
+
+/**
+ * dpdmai_set_rx_queue() - Set Rx queue 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 DPDMAI object
+ * @priority: Select the queue relative to number of
+ * priorities configured at DPDMAI creation; use
+ * DPDMAI_ALL_QUEUES to configure all Rx queues
+ * identically.
+ * @cfg: Rx queue configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t priority,
+ const struct dpdmai_rx_queue_cfg *cfg)
+{
+ struct dpdmai_cmd_set_rx_queue *cmd_params;
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_SET_RX_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmai_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);
+ dpdmai_set_field(cmd_params->dest_type,
+ DEST_TYPE,
+ cfg->dest_cfg.dest_type);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpdmai_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 DPDMAI object
+ * @priority: Select the queue relative to number of
+ * priorities configured at DPDMAI creation
+ * @attr: Returned Rx queue attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t priority,
+ struct dpdmai_rx_queue_attr *attr)
+{
+ struct dpdmai_cmd_get_queue *cmd_params;
+ struct dpdmai_rsp_get_rx_queue *rsp_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_RX_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmai_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 dpdmai_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 = le32_to_cpu(rsp_params->dest_priority);
+ attr->dest_cfg.dest_type = dpdmai_get_field(rsp_params->dest_type,
+ DEST_TYPE);
+
+ return 0;
+}
+
+/**
+ * dpdmai_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 DPDMAI object
+ * @priority: Select the queue relative to number of
+ * priorities configured at DPDMAI creation
+ * @attr: Returned Tx queue attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io,
+ uint32_t cmd_flags,
+ uint16_t token,
+ uint8_t priority,
+ struct dpdmai_tx_queue_attr *attr)
+{
+ struct dpdmai_cmd_get_queue *cmd_params;
+ struct dpdmai_rsp_get_tx_queue *rsp_params;
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_TX_QUEUE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpdmai_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 dpdmai_rsp_get_tx_queue *)cmd.params;
+ attr->fqid = le32_to_cpu(rsp_params->fqid);
+
+ return 0;
+}