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zipl: Implement helper function disk_is_nvme()

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The new function disk_is_nvme() is a convenience function that indicates
whether the given path to a device file represents a NVMe disk.

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Alexander Egorenkov
2021-08-18 08:25:25 +02:00
committed by Jan Höppner
parent 844058bf4d
commit 5094354c39
2 changed files with 15 additions and 0 deletions
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zipl/include/disk.h
+1
View File
@@ -102,6 +102,7 @@ int disk_get_info(const char* device, struct job_target_data* target,
struct disk_info** info);
int disk_is_tape(const char* device);
int disk_is_scsi(const char* device, struct job_target_data* target);
int disk_is_nvme(const char* device, struct job_target_data* target);
int disk_get_info_from_file(const char* filename,
struct job_target_data* target,
struct disk_info** info);
zipl/src/disk.c
+14
View File
@@ -508,6 +508,20 @@ disk_is_scsi(const char* device, struct job_target_data* target)
return rc;
}
int
disk_is_nvme(const char* device, struct job_target_data* target)
{
struct disk_info* info;
int rc = 0;
if (disk_get_info(device, target, &info) == -1)
return 0;
if (info->type == disk_type_scsi && info->is_nvme)
rc = 1;
disk_free_info(info);
return rc;
}
int
disk_get_info_from_file(const char* filename, struct job_target_data* target,
struct disk_info** info)