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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/base.h>
#include "pldm.h"
static uint8_t bmc_tid = -1;
uint8_t pldm_base_get_bmc_tid(void)
{
return bmc_tid;
}
/*
* Create a PLDM request message for GetTID.
*/
int pldm_base_get_tid_req(void)
{
size_t data_size = PLDM_MSG_SIZE(0); /* the command doesn't have a message payload */
size_t response_len, payload_len;
struct pldm_tx_data *tx = NULL;
void *response_msg;
int rc;
struct pldm_get_tid_resp response;
/* Encode the get tid request */
tx = zalloc(sizeof(struct pldm_tx_data) + data_size);
if (!tx)
return OPAL_NO_MEM;
tx->data_size = data_size;
rc = encode_get_tid_req(DEFAULT_INSTANCE_ID,
(struct pldm_msg *)tx->data);
if (rc != PLDM_SUCCESS) {
prlog(PR_ERR, "Encode GetTID 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: GetTID, rc: %d\n", rc);
free(tx);
return rc;
}
/* Decode the message */
payload_len = response_len - sizeof(struct pldm_msg_hdr);
rc = decode_get_tid_resp(response_msg, payload_len,
&response.completion_code,
&response.tid);
if ((rc != PLDM_SUCCESS) || (response.completion_code != PLDM_SUCCESS)) {
prlog(PR_ERR, "Decode GetTID Error, rc: %d, cc: %d\n",
rc, response.completion_code);
free(tx);
free(response_msg);
return OPAL_PARAMETER;
}
prlog(PR_INFO, "BMC's TID is %d\n", response.tid);
bmc_tid = response.tid;
free(tx);
free(response_msg);
return OPAL_SUCCESS;
}
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