55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) 2023-2024 Solidigm.
|
|
*
|
|
* Author: leonardo.da.cunha@solidigm.com
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include "solidigm-util.h"
|
|
|
|
const unsigned char solidigm_uuid[NVME_UUID_LEN] = {
|
|
0x96, 0x19, 0x58, 0x6e, 0xc1, 0x1b, 0x43, 0xad,
|
|
0xaa, 0xaa, 0x65, 0x41, 0x87, 0xf6, 0xbb, 0xb2
|
|
};
|
|
|
|
int sldgm_find_uuid_index(struct nvme_id_uuid_list *uuid_list, __u8 *index)
|
|
{
|
|
int i = nvme_uuid_find(uuid_list, solidigm_uuid);
|
|
|
|
*index = 0;
|
|
if (i > 0)
|
|
*index = i;
|
|
else
|
|
return -errno;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sldgm_get_uuid_index(struct nvme_dev *dev, __u8 *index)
|
|
{
|
|
struct nvme_id_uuid_list uuid_list;
|
|
int err = nvme_identify_uuid(dev_fd(dev), &uuid_list);
|
|
|
|
*index = 0;
|
|
if (err)
|
|
return err;
|
|
|
|
return sldgm_find_uuid_index(&uuid_list, index);
|
|
}
|
|
|
|
int sldgm_dynamic_telemetry(int dev_fd, bool create, bool ctrl, bool log_page, __u8 mtds,
|
|
enum nvme_telemetry_da da, struct nvme_telemetry_log **log_buffer,
|
|
size_t *log_buffer_size)
|
|
{
|
|
int err;
|
|
size_t max_data_tx = (1 << mtds) * NVME_LOG_PAGE_PDU_SIZE;
|
|
|
|
do {
|
|
err = nvme_get_telemetry_log(dev_fd, create, ctrl, log_page, max_data_tx, da,
|
|
log_buffer, log_buffer_size);
|
|
max_data_tx /= 2;
|
|
create = false;
|
|
} while (err == -EPERM && max_data_tx >= NVME_LOG_PAGE_PDU_SIZE);
|
|
return err;
|
|
}
|