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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
// Copyright 2022 IBM Corp.
#define pr_fmt(fmt) "PLDM: " fmt
#include <cpu.h>
#include <opal.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <libpldm/fru.h>
#include "pldm.h"
static void *fru_record_table;
static size_t fru_record_length;
static bool fru_ready;
static void fru_init_complete(bool success)
{
/* Read not successful, error out and free the buffer */
if (!success) {
fru_ready = false;
if (fru_record_table != NULL) {
free(fru_record_table);
fru_record_length = 0;
}
return;
}
/* Mark ready */
fru_ready = true;
}
static int get_fru_record_table_req(void **record_table_data,
size_t *record_table_length)
{
size_t data_size = PLDM_MSG_SIZE(struct pldm_get_fru_record_table_req);
uint8_t transfer_flag, completion_code;
size_t response_len, payload_len;
struct pldm_tx_data *tx = NULL;
uint32_t next_transfer_handle;
uint8_t *table_data;
size_t table_length;
void *response_msg;
int rc = OPAL_SUCCESS;
struct pldm_get_fru_record_table_req fru_record_table_req = {
.data_transfer_handle = 0, /* (0 if operation op is FIRSTPART) */
.transfer_operation_flag = PLDM_GET_FIRSTPART,
};
payload_len = sizeof(struct pldm_get_fru_record_table_req);
/* Encode the file table request */
tx = zalloc(sizeof(struct pldm_tx_data) + data_size);
if (!tx)
return OPAL_NO_MEM;
tx->data_size = data_size;
rc = encode_get_fru_record_table_req(
DEFAULT_INSTANCE_ID,
fru_record_table_req.data_transfer_handle,
fru_record_table_req.transfer_operation_flag,
(struct pldm_msg *)tx->data,
payload_len);
if (rc != PLDM_SUCCESS) {
prlog(PR_ERR, "Encode GetFruRecordTableReq Error, rc: %d\n", rc);
free(tx);
return OPAL_PARAMETER;
}
/* Send and get the response message bytes */
rc = pldm_requester_queue_and_wait(tx, &response_msg, &response_len);
if (rc) {
prlog(PR_ERR, "Communication Error, req: GetFruRecordTableReq, rc: %d\n", rc);
free(tx);
return rc;
}
/* Decode the message */
payload_len = response_len - sizeof(struct pldm_msg_hdr);
table_data = zalloc(payload_len);
if (!table_data) {
free(tx);
return OPAL_NO_MEM;
}
rc = decode_get_fru_record_table_resp(
response_msg,
payload_len,
&completion_code,
&next_transfer_handle,
&transfer_flag,
table_data,
&table_length);
if (rc != PLDM_SUCCESS || completion_code != PLDM_SUCCESS) {
prlog(PR_ERR, "Decode GetFruRecordTableReq Error, rc: %d, cc: %d\n",
rc, completion_code);
rc = OPAL_PARAMETER;
goto out;
}
/* we do not support multipart transfer */
if ((next_transfer_handle != PLDM_GET_NEXTPART) ||
(transfer_flag != PLDM_START_AND_END)) {
prlog(PR_ERR, "Transfert GetFruRecordTableReq not complete, "
"transfer_hndl: %d, transfer_flag: %d\n",
next_transfer_handle,
transfer_flag);
rc = OPAL_PARAMETER;
goto out;
}
*record_table_length = table_length;
*record_table_data = zalloc(table_length);
if (!record_table_data)
rc = OPAL_NO_MEM;
else
memcpy(*record_table_data, table_data, table_length);
out:
free(tx);
free(table_data);
free(response_msg);
return rc;
}
int pldm_fru_init(void)
{
int rc;
/* get fru record table */
rc = get_fru_record_table_req(&fru_record_table,
&fru_record_length);
if (rc)
goto err;
fru_init_complete(true);
prlog(PR_DEBUG, "%s - done\n", __func__);
return OPAL_SUCCESS;
err:
fru_init_complete(false);
return rc;
}
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