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/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
*
* Copyright 2013-2016 Freescale Semiconductor Inc.
* Copyright 2016-2017 NXP
*
*/
#ifndef __FSL_MC_CMD_H
#define __FSL_MC_CMD_H
#include <rte_byteorder.h>
#include <stdint.h>
#define MC_CMD_NUM_OF_PARAMS 7
#define phys_addr_t uint64_t
#define u64 uint64_t
#define u32 uint32_t
#define u16 uint16_t
#define u8 uint8_t
#define cpu_to_le64 rte_cpu_to_le_64
#define cpu_to_le32 rte_cpu_to_le_32
#define cpu_to_le16 rte_cpu_to_le_16
#define le64_to_cpu rte_le_to_cpu_64
#define le32_to_cpu rte_le_to_cpu_32
#define le16_to_cpu rte_le_to_cpu_16
#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
#define GENMASK(h, l) \
(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
struct mc_cmd_header {
union {
struct {
uint8_t src_id;
uint8_t flags_hw;
uint8_t status;
uint8_t flags_sw;
uint16_t token;
uint16_t cmd_id;
};
uint32_t word[2];
};
};
struct mc_command {
uint64_t header;
uint64_t params[MC_CMD_NUM_OF_PARAMS];
};
struct mc_rsp_create {
uint32_t object_id;
};
enum mc_cmd_status {
MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
};
/*
* MC command flags
*/
/* High priority flag */
#define MC_CMD_FLAG_PRI 0x80
/* Command completion flag */
#define MC_CMD_FLAG_INTR_DIS 0x01
#define MC_CMD_HDR_FLAGS_MASK 0xFF00FF00
int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
uint32_t cmd_flags,
uint16_t token)
{
uint64_t header = 0;
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header;
hdr->cmd_id = cpu_to_le16(cmd_id);
hdr->token = cpu_to_le16(token);
hdr->status = MC_CMD_STATUS_READY;
hdr->word[0] |= cpu_to_le32(cmd_flags & MC_CMD_HDR_FLAGS_MASK);
return header;
}
static inline uint16_t mc_cmd_hdr_read_token(struct mc_command *cmd)
{
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
uint16_t token = le16_to_cpu(hdr->token);
return token;
}
static inline uint32_t mc_cmd_read_object_id(struct mc_command *cmd)
{
struct mc_rsp_create *rsp_params;
rsp_params = (struct mc_rsp_create *)cmd->params;
return le32_to_cpu(rsp_params->object_id);
}
static inline enum mc_cmd_status mc_cmd_read_status(struct mc_command *cmd)
{
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
uint8_t status = hdr->status;
return (enum mc_cmd_status)status;
}
/**
* mc_write_command - writes a command to a Management Complex (MC) portal
*
* @portal: pointer to an MC portal
* @cmd: pointer to a filled command
*/
static inline void mc_write_command(struct mc_command __iomem *portal,
struct mc_command *cmd)
{
struct mc_cmd_header *cmd_header = (struct mc_cmd_header *)&cmd->header;
char *header = (char *)&portal->header;
int i;
/* copy command parameters into the portal */
for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
iowrite64(cmd->params[i], &portal->params[i]);
/* submit the command by writing the header */
iowrite32(le32_to_cpu(cmd_header->word[1]), (((uint32_t *)header) + 1));
iowrite32(le32_to_cpu(cmd_header->word[0]), (uint32_t *)header);
}
/**
* mc_read_response - reads the response for the last MC command from a
* Management Complex (MC) portal
*
* @portal: pointer to an MC portal
* @resp: pointer to command response buffer
*
* Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
*/
static inline enum mc_cmd_status mc_read_response(
struct mc_command __iomem *portal,
struct mc_command *resp)
{
int i;
enum mc_cmd_status status;
/* Copy command response header from MC portal: */
resp->header = ioread64(&portal->header);
status = mc_cmd_read_status(resp);
if (status != MC_CMD_STATUS_OK)
return status;
/* Copy command response data from MC portal: */
for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
resp->params[i] = ioread64(&portal->params[i]);
return status;
}
#endif /* __FSL_MC_CMD_H */
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