Initial support for WRITE_SAME16.
This command is largely the same as WRITE_SAME10.
No support for using the command to perform UNMAP of blocks on thin provisioned LUNs yet.
WRITE_SAME16 only works for the bs_rdwr backend for now. We can add support to bs_aio at a later stage.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@xxxxxxxxx>
---
usr/bs_aio.c | 1 +
usr/bs_rdwr.c | 1 +
usr/sbc.c | 4 +++-
usr/scsi.c | 2 ++
usr/scsi.h | 1 +
5 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/usr/bs_aio.c b/usr/bs_aio.c
index d69c6a1..0b19a7c 100644
--- a/usr/bs_aio.c
+++ b/usr/bs_aio.c
@@ -207,6 +207,7 @@ static int bs_aio_cmd_submit(struct scsi_cmd *cmd)
break;
case WRITE_SAME:
+ case WRITE_SAME_16:
eprintf("WRITE_SAME not yet supported for AIO backend.\n");
return -1;
diff --git a/usr/bs_rdwr.c b/usr/bs_rdwr.c
index 5110a90..cd4518b 100644
--- a/usr/bs_rdwr.c
+++ b/usr/bs_rdwr.c
@@ -113,6 +113,7 @@ static void bs_rdwr_request(struct scsi_cmd *cmd)
break;
case WRITE_SAME:
+ case WRITE_SAME_16:
while (tl > 0) {
blocksize = 1 << cmd->dev->blk_shift;
tmpbuf = scsi_get_out_buffer(cmd);
diff --git a/usr/sbc.c b/usr/sbc.c
index cf72e65..de0a13b 100644
--- a/usr/sbc.c
+++ b/usr/sbc.c
@@ -229,6 +229,7 @@ static int sbc_rw(int host_no, struct scsi_cmd *cmd)
}
break;
case WRITE_SAME:
+ case WRITE_SAME_16:
/* We only support protection information type 0 */
if (cmd->scb[1] & 0xe0) {
key = ILLEGAL_REQUEST;
@@ -251,6 +252,7 @@ static int sbc_rw(int host_no, struct scsi_cmd *cmd)
case WRITE_12:
case WRITE_16:
case WRITE_SAME:
+ case WRITE_SAME_16:
case PRE_FETCH_10:
case PRE_FETCH_16:
key = DATA_PROTECT;
@@ -683,7 +685,7 @@ static struct device_type_template sbc_template = {
{sbc_rw, NULL, PR_EA_FA|PR_EA_FN}, /*PRE_FETCH_16 */
{sbc_sync_cache, NULL, PR_WE_FA|PR_EA_FA|PR_WE_FN|PR_EA_FN},
{spc_illegal_op,},
- {spc_illegal_op,},
+ {sbc_rw,}, /* WRITE_SAME_16 */
{spc_illegal_op,},
{spc_illegal_op,},
{spc_illegal_op,},
diff --git a/usr/scsi.c b/usr/scsi.c
index c46753e..20382f1 100644
--- a/usr/scsi.c
+++ b/usr/scsi.c
@@ -133,6 +133,7 @@ uint64_t scsi_rw_offset(uint8_t *scb)
case WRITE_16:
case VERIFY_16:
case WRITE_VERIFY_16:
+ case WRITE_SAME_16:
case SYNCHRONIZE_CACHE_16:
off = (uint64_t)scb[2] << 56 | (uint64_t)scb[3] << 48 |
(uint64_t)scb[4] << 40 | (uint64_t)scb[5] << 32 |
@@ -179,6 +180,7 @@ uint32_t scsi_rw_count(uint8_t *scb)
case WRITE_16:
case VERIFY_16:
case WRITE_VERIFY_16:
+ case WRITE_SAME_16:
case SYNCHRONIZE_CACHE_16:
cnt = (uint32_t)scb[10] << 24 | (uint32_t)scb[11] << 16 |
(uint32_t)scb[12] << 8 | (uint32_t)scb[13];
diff --git a/usr/scsi.h b/usr/scsi.h
index 1508cc6..0a02c36 100644
--- a/usr/scsi.h
+++ b/usr/scsi.h
@@ -77,6 +77,7 @@
#define VERIFY_16 0x8f
#define PRE_FETCH_16 0x90
#define SYNCHRONIZE_CACHE_16 0x91
+#define WRITE_SAME_16 0x93
#define SERVICE_ACTION_IN 0x9e
#define SAI_READ_CAPACITY_16 0x10
#define REPORT_LUNS 0xa0
--
1.7.3.1
--
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