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-rw-r--r--drivers/dma/fsl-dpaa2-qdma/dpdmai.c113
1 files changed, 43 insertions, 70 deletions
diff --git a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
index 878662aaa1..36897b41ee 100644
--- a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
+++ b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
@@ -1,47 +1,52 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright 2019 NXP
+#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/io.h>
#include <linux/fsl/mc.h>
#include "dpdmai.h"
+#define DEST_TYPE_MASK 0xF
+
struct dpdmai_rsp_get_attributes {
__le32 id;
u8 num_of_priorities;
- u8 pad0[3];
+ u8 num_of_queues;
+ u8 pad0[2];
__le16 major;
__le16 minor;
};
struct dpdmai_cmd_queue {
__le32 dest_id;
- u8 priority;
- u8 queue;
+ u8 dest_priority;
+ union {
+ u8 queue;
+ u8 pri;
+ };
u8 dest_type;
- u8 pad;
+ u8 queue_idx;
__le64 user_ctx;
union {
__le32 options;
__le32 fqid;
};
-};
+} __packed;
struct dpdmai_rsp_get_tx_queue {
__le64 pad;
__le32 fqid;
};
-#define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
- ((_cmd).params[_param] |= mc_enc((_offset), (_width), _arg))
+struct dpdmai_cmd_open {
+ __le32 dpdmai_id;
+} __packed;
-/* cmd, param, offset, width, type, arg_name */
-#define DPDMAI_CMD_CREATE(cmd, cfg) \
-do { \
- MC_CMD_OP(cmd, 0, 8, 8, u8, (cfg)->priorities[0]);\
- MC_CMD_OP(cmd, 0, 16, 8, u8, (cfg)->priorities[1]);\
-} while (0)
+struct dpdmai_cmd_destroy {
+ __le32 dpdmai_id;
+} __packed;
static inline u64 mc_enc(int lsoffset, int width, u64 val)
{
@@ -68,16 +73,16 @@ static inline u64 mc_enc(int lsoffset, int width, u64 val)
int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
int dpdmai_id, u16 *token)
{
+ struct dpdmai_cmd_open *cmd_params;
struct fsl_mc_command cmd = { 0 };
- __le64 *cmd_dpdmai_id;
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
cmd_flags, 0);
- cmd_dpdmai_id = cmd.params;
- *cmd_dpdmai_id = cpu_to_le32(dpdmai_id);
+ 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);
@@ -116,65 +121,26 @@ int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
EXPORT_SYMBOL_GPL(dpdmai_close);
/**
- * dpdmai_create() - Create the DPDMAI object
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @cfg: Configuration structure
- * @token: Returned token; use in subsequent API calls
- *
- * 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.
- *
- * 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 dpdmai_open() function to get an authentication
- * token first.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags,
- const struct dpdmai_cfg *cfg, u16 *token)
-{
- struct fsl_mc_command cmd = { 0 };
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
- cmd_flags, 0);
- DPDMAI_CMD_CREATE(cmd, cfg);
-
- /* 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_destroy() - Destroy the DPDMAI object and release all its resources.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpdmai_id: The object id; it must be a valid id within the container that created this object;
* @token: Token of DPDMAI object
*
* Return: '0' on Success; error code otherwise.
*/
-int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
+int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u32 dpdmai_id, u16 token)
{
+ struct dpdmai_cmd_destroy *cmd_params;
struct fsl_mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DESTROY,
cmd_flags, token);
+ cmd_params = (struct dpdmai_cmd_destroy *)&cmd.params;
+ cmd_params->dpdmai_id = cpu_to_le32(dpdmai_id);
+
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
@@ -274,6 +240,7 @@ int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
attr->version.major = le16_to_cpu(rsp_params->major);
attr->version.minor = le16_to_cpu(rsp_params->minor);
attr->num_of_priorities = rsp_params->num_of_priorities;
+ attr->num_of_queues = rsp_params->num_of_queues;
return 0;
}
@@ -284,13 +251,14 @@ EXPORT_SYMBOL_GPL(dpdmai_get_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
+ * @queue_idx: DMA queue index
* @priority: Select the queue relative to number of
* priorities configured at DPDMAI creation
* @cfg: Rx queue configuration
*
* Return: '0' on Success; Error code otherwise.
*/
-int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
+int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u8 queue_idx,
u8 priority, const struct dpdmai_rx_queue_cfg *cfg)
{
struct dpdmai_cmd_queue *cmd_params;
@@ -302,11 +270,12 @@ int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
- cmd_params->priority = cfg->dest_cfg.priority;
- cmd_params->queue = priority;
+ cmd_params->dest_priority = cfg->dest_cfg.priority;
+ cmd_params->pri = priority;
cmd_params->dest_type = cfg->dest_cfg.dest_type;
cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
cmd_params->options = cpu_to_le32(cfg->options);
+ cmd_params->queue_idx = queue_idx;
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
@@ -318,13 +287,14 @@ EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);
* @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
+ * @queue_idx: DMA Queue index
* @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, u32 cmd_flags, u16 token,
+int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u8 queue_idx,
u8 priority, struct dpdmai_rx_queue_attr *attr)
{
struct dpdmai_cmd_queue *cmd_params;
@@ -337,6 +307,7 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
cmd_params->queue = priority;
+ cmd_params->queue_idx = queue_idx;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -345,8 +316,8 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
/* retrieve response parameters */
attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
- attr->dest_cfg.priority = cmd_params->priority;
- attr->dest_cfg.dest_type = cmd_params->dest_type;
+ attr->dest_cfg.priority = cmd_params->dest_priority;
+ attr->dest_cfg.dest_type = FIELD_GET(DEST_TYPE_MASK, cmd_params->dest_type);
attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
attr->fqid = le32_to_cpu(cmd_params->fqid);
@@ -359,14 +330,15 @@ EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);
* @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
+ * @queue_idx: DMA queue index
* @priority: Select the queue relative to number of
* priorities configured at DPDMAI creation
- * @fqid: Returned Tx queue
+ * @attr: Returned DMA Tx queue attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
- u16 token, u8 priority, u32 *fqid)
+ u16 token, u8 queue_idx, u8 priority, struct dpdmai_tx_queue_attr *attr)
{
struct dpdmai_rsp_get_tx_queue *rsp_params;
struct dpdmai_cmd_queue *cmd_params;
@@ -379,6 +351,7 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
cmd_params->queue = priority;
+ cmd_params->queue_idx = queue_idx;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -388,7 +361,7 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
/* retrieve response parameters */
rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
- *fqid = le32_to_cpu(rsp_params->fqid);
+ attr->fqid = le32_to_cpu(rsp_params->fqid);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 12:50:34 +0000