admin/libiscsi
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

Add support for WRITEVERIFY10/12/16

Browse Source
This commit is contained in:
Ronnie Sahlberg
2012-07-14 08:19:43 +10:00
parent 1745f76bef
commit 29f5e9378f
7 changed files with 372 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

130
lib/scsi-lowlevel.c
View File

@@ -1623,6 +1623,136 @@ scsi_cdb_get_lba_status(uint64_t starting_lba, uint32_t alloc_len)
return task;
}
/*
* WRITEVERIFY10
*/
struct scsi_task *
scsi_cdb_writeverify10(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, 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_VERIFY10;
task->cdb[1] |= ((wrprotect & 0x07) << 5);
if (dpo) {
task->cdb[1] |= 0x10;
}
if (bytchk) {
task->cdb[1] |= 0x02;
}
*(uint32_t *)&task->cdb[2] = htonl(lba);
*(uint16_t *)&task->cdb[7] = htons(xferlen/blocksize);
task->cdb[6] |= (group_number & 0x1f);
task->cdb_size = 10;
if (xferlen != 0) {
task->xfer_dir = SCSI_XFER_WRITE;
} else {
task->xfer_dir = SCSI_XFER_NONE;
}
task->expxferlen = xferlen;
task->params.writeverify10.lba = lba;
task->params.writeverify10.num_blocks = xferlen/blocksize;
return task;
}
/*
* WRITEVERIFY12
*/
struct scsi_task *
scsi_cdb_writeverify12(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, 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_VERIFY12;
task->cdb[1] |= ((wrprotect & 0x07) << 5);
if (dpo) {
task->cdb[1] |= 0x10;
}
if (bytchk) {
task->cdb[1] |= 0x02;
}
*(uint32_t *)&task->cdb[2] = htonl(lba);
*(uint32_t *)&task->cdb[6] = htonl(xferlen/blocksize);
task->cdb[10] |= (group_number & 0x1f);
task->cdb_size = 12;
if (xferlen != 0) {
task->xfer_dir = SCSI_XFER_WRITE;
} else {
task->xfer_dir = SCSI_XFER_NONE;
}
task->expxferlen = xferlen;
task->params.writeverify12.lba = lba;
task->params.writeverify12.num_blocks = xferlen/blocksize;
return task;
}
/*
* WRITEVERIFY16
*/
struct scsi_task *
scsi_cdb_writeverify16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, 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_VERIFY16;
task->cdb[1] |= ((wrprotect & 0x07) << 5);
if (dpo) {
task->cdb[1] |= 0x10;
}
if (bytchk) {
task->cdb[1] |= 0x02;
}
*(uint32_t *)&task->cdb[2] = htonl(lba >> 32);
*(uint32_t *)&task->cdb[6] = htonl(lba & 0xffffffff);
*(uint32_t *)&task->cdb[10] = htonl(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;
task->params.writeverify16.lba = lba;
task->params.writeverify16.num_blocks = xferlen/blocksize;
return task;
}
int
scsi_datain_getfullsize(struct scsi_task *task)
{