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Add support for WRITE_ATOMIC_16

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Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This commit is contained in:
Ronnie Sahlberg
2015-09-08 09:45:33 -07:00
parent 639c6f4c15
commit 02fd6217cb
5 changed files with 145 additions and 0 deletions
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65
lib/scsi-lowlevel.c
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@@ -1810,6 +1810,47 @@ scsi_cdb_write16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, i
return task;
}
/*
* WRITEATOMIC16
*/
struct scsi_task *
scsi_cdb_writeatomic16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int group_number)
{
struct scsi_task *task;
task = malloc(sizeof(struct scsi_task));
if (task == NULL) {
return NULL;
}
memset(task, 0, sizeof(struct scsi_task));
task->cdb[0] = SCSI_OPCODE_WRITE_ATOMIC16;
task->cdb[1] |= ((wrprotect & 0x07) << 5);
if (dpo) {
task->cdb[1] |= 0x10;
}
if (fua) {
task->cdb[1] |= 0x08;
}
scsi_set_uint32(&task->cdb[2], lba >> 32);
scsi_set_uint32(&task->cdb[6], lba & 0xffffffff);
scsi_set_uint16(&task->cdb[12], xferlen / blocksize);
task->cdb[14] |= (group_number & 0x1f);
task->cdb_size = 16;
if (xferlen != 0) {
task->xfer_dir = SCSI_XFER_WRITE;
} else {
task->xfer_dir = SCSI_XFER_NONE;
}
task->expxferlen = xferlen;
return task;
}
/*
* ORWRITE
*/
@@ -3624,6 +3665,28 @@ scsi_write16_cdb_unmarshall(struct scsi_task *task)
return write16;
}
static struct scsi_writeatomic16_cdb *
scsi_writeatomic16_cdb_unmarshall(struct scsi_task *task)
{
struct scsi_writeatomic16_cdb *writeatomic16;
writeatomic16 = scsi_malloc(task, sizeof(struct scsi_writeatomic16_cdb));
if (writeatomic16 == NULL) {
return NULL;
}
writeatomic16->opcode = SCSI_OPCODE_WRITE_ATOMIC16;
writeatomic16->wrprotect = (task->cdb[1] >> 5) & 0x7;
writeatomic16->dpo = !!(task->cdb[1] & 0x10);
writeatomic16->fua = !!(task->cdb[1] & 0x08);
writeatomic16->lba = scsi_get_uint64(&task->cdb[2]);
writeatomic16->transfer_length = scsi_get_uint16(&task->cdb[12]);
writeatomic16->group = task->cdb[14] & 0x1f;
writeatomic16->control = task->cdb[15];
return writeatomic16;
}
void *
scsi_cdb_unmarshall(struct scsi_task *task, enum scsi_opcode opcode)
{
@@ -3652,6 +3715,8 @@ scsi_cdb_unmarshall(struct scsi_task *task, enum scsi_opcode opcode)
return scsi_write12_cdb_unmarshall(task);
case SCSI_OPCODE_WRITE16:
return scsi_write16_cdb_unmarshall(task);
case SCSI_OPCODE_WRITE_ATOMIC16:
return scsi_writeatomic16_cdb_unmarshall(task);
}
return NULL;
}