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authorSam Bradshaw <sbradshaw@micron.com>2013-10-03 10:18:05 -0700
committerJens Axboe <axboe@kernel.dk>2014-01-21 20:20:44 -0800
commit26d580575b4b8c3c83137315c9a2a77e60a2f716 (patch)
tree3b17a0e384cae65f77f833186362ea9286441828 /drivers/block
parent188b9f49d4b156b0c07ee05bf90ab7b290077d0f (diff)
downloadop-kernel-dev-26d580575b4b8c3c83137315c9a2a77e60a2f716.zip
op-kernel-dev-26d580575b4b8c3c83137315c9a2a77e60a2f716.tar.gz
mtip32xx: Correctly handle security locked condition
If power is removed during a secure erase, the drive will end up in a security locked condition. This patch causes the driver to identify, log, and flag the security lock state. IOs are prevented from submission to the drive until the locked state is addressed with a secure erase. Bumped version number to reflect this capability. Signed-off-by: Sam Bradshaw <sbradshaw@micron.com> Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c16
-rw-r--r--drivers/block/mtip32xx/mtip32xx.h2
2 files changed, 15 insertions, 3 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 966b437..5160269 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -920,8 +920,9 @@ static void mtip_handle_tfe(struct driver_data *dd)
fail_reason = "thermal shutdown";
}
if (buf[288] == 0xBF) {
+ set_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag);
dev_info(&dd->pdev->dev,
- "Drive indicates rebuild has failed.\n");
+ "Drive indicates rebuild has failed. Secure erase required.\n");
fail_all_ncq_cmds = 1;
fail_reason = "rebuild failed";
}
@@ -1587,6 +1588,12 @@ static int mtip_get_identify(struct mtip_port *port, void __user *user_buffer)
}
#endif
+ /* Check security locked state */
+ if (port->identify[128] & 0x4)
+ set_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
+ else
+ clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
+
#ifdef MTIP_TRIM /* Disabling TRIM support temporarily */
/* Demux ID.DRAT & ID.RZAT to determine trim support */
if (port->identify[69] & (1 << 14) && port->identify[69] & (1 << 5))
@@ -1908,6 +1915,10 @@ static void mtip_dump_identify(struct mtip_port *port)
strlcpy(cbuf, (char *)(port->identify+27), 41);
dev_info(&port->dd->pdev->dev, "Model: %s\n", cbuf);
+ dev_info(&port->dd->pdev->dev, "Security: %04x %s\n",
+ port->identify[128],
+ port->identify[128] & 0x4 ? "(LOCKED)" : "");
+
if (mtip_hw_get_capacity(port->dd, &sectors))
dev_info(&port->dd->pdev->dev,
"Capacity: %llu sectors (%llu MB)\n",
@@ -3678,7 +3689,8 @@ static int mtip_hw_exit(struct driver_data *dd)
* saves its state.
*/
if (!dd->sr) {
- if (!test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag))
+ if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags) &&
+ !test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))
if (mtip_standby_immediate(dd->port))
dev_warn(&dd->pdev->dev,
"STANDBY IMMEDIATE failed\n");
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index bda35d9..b52e9a6 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -92,7 +92,7 @@
/* Driver name and version strings */
#define MTIP_DRV_NAME "mtip32xx"
-#define MTIP_DRV_VERSION "1.2.6os3"
+#define MTIP_DRV_VERSION "1.3.0"
/* Maximum number of minor device numbers per device. */
#define MTIP_MAX_MINORS 16
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