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Add support for READCAPACITY16

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Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This commit is contained in:
Ronnie Sahlberg
2012-04-20 17:56:39 +10:00
parent 422bc32ce8
commit 86bf89aabf
11 changed files with 230 additions and 12 deletions
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69
lib/scsi-lowlevel.c
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@@ -258,6 +258,36 @@ scsi_cdb_readcapacity10(int lba, int pmi)
return task;
}
/*
* service_action_in unmarshall
*/
static void *
scsi_serviceactionin_datain_unmarshall(struct scsi_task *task)
{
struct scsi_readcapacity16 *rc16;
switch (task->params.serviceactionin.sa) {
case SCSI_READCAPACITY16:
rc16 = scsi_malloc(task, sizeof(struct scsi_readcapacity16));
if (rc16 == NULL) {
return NULL;
}
rc16->returned_lba = htonl(*(uint32_t *)&(task->datain.data[0]));
rc16->returned_lba = (rc16->returned_lba << 32) | htonl(*(uint32_t *)&(task->datain.data[4]));
rc16->block_length = htonl(*(uint32_t *)&(task->datain.data[8]));
rc16->p_type = (task->datain.data[12] >> 1) & 0x07;
rc16->prot_en = task->datain.data[12] & 0x01;
rc16->p_i_exp = (task->datain.data[13] >> 4) & 0x0f;
rc16->lbppbe = task->datain.data[13] & 0x0f;
rc16->lbpme = !!(task->datain.data[14] & 0x80);
rc16->lbprz = !!(task->datain.data[14] & 0x40);
rc16->lalba = htons(*(uint16_t *)&(task->datain.data[14])) & 0x3fff;
return rc16;
}
return NULL;
}
/*
* parse the data in blob and calcualte the size of a full
* readcapacity10 datain structure
@@ -923,6 +953,43 @@ scsi_cdb_synchronizecache10(int lba, int num_blocks, int syncnv, int immed)
}
/*
* SERVICEACTIONIN16
*/
struct scsi_task *
scsi_cdb_serviceactionin16(enum scsi_service_action_in sa, uint32_t xferlen)
{
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_SERVICE_ACTION_IN;
task->cdb[1] = sa;
*(uint32_t *)&task->cdb[10] = htonl(xferlen);
task->cdb_size = 16;
task->xfer_dir = SCSI_XFER_READ;
task->expxferlen = xferlen;
task->params.serviceactionin.sa = sa;
return task;
}
/*
* READCAPACITY16
*/
struct scsi_task *
scsi_cdb_readcapacity16(void)
{
return scsi_cdb_serviceactionin16(SCSI_READCAPACITY16, 32);
}
int
scsi_datain_getfullsize(struct scsi_task *task)
@@ -960,6 +1027,8 @@ scsi_datain_unmarshall(struct scsi_task *task)
return NULL;
case SCSI_OPCODE_REPORTLUNS:
return scsi_reportluns_datain_unmarshall(task);
case SCSI_OPCODE_SERVICE_ACTION_IN:
return scsi_serviceactionin_datain_unmarshall(task);
}
return NULL;
}