diff options
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_cdb.c | 17 | ||||
| -rw-r--r-- | drivers/target/target_core_configfs.c | 4 | ||||
| -rw-r--r-- | drivers/target/target_core_device.c | 13 | ||||
| -rw-r--r-- | drivers/target/target_core_iblock.c | 3 |
4 files changed, 37 insertions, 0 deletions
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 1157e0c6dba..432253034de 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -535,6 +535,22 @@ target_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) return 0; } +/* Block Device Characteristics VPD page */ +static int +target_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf) +{ + struct se_device *dev = cmd->se_dev; + + buf[0] = dev->transport->get_device_type(dev); + buf[3] = 0x3c; + + if (cmd->data_length >= 5 && + dev->se_sub_dev->se_dev_attrib.is_nonrot) + buf[5] = 1; + + return 0; +} + /* Thin Provisioning VPD */ static int target_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf) @@ -599,6 +615,7 @@ static struct { { .page = 0x83, .emulate = target_emulate_evpd_83 }, { .page = 0x86, .emulate = target_emulate_evpd_86 }, { .page = 0xb0, .emulate = target_emulate_evpd_b0 }, + { .page = 0xb1, .emulate = target_emulate_evpd_b1 }, { .page = 0xb2, .emulate = target_emulate_evpd_b2 }, }; diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 8d2aba51fc8..6b00810b8dc 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -698,6 +698,9 @@ SE_DEV_ATTR(emulate_tpws, S_IRUGO | S_IWUSR); DEF_DEV_ATTRIB(enforce_pr_isids); SE_DEV_ATTR(enforce_pr_isids, S_IRUGO | S_IWUSR); +DEF_DEV_ATTRIB(is_nonrot); +SE_DEV_ATTR(is_nonrot, S_IRUGO | S_IWUSR); + DEF_DEV_ATTRIB_RO(hw_block_size); SE_DEV_ATTR_RO(hw_block_size); @@ -746,6 +749,7 @@ static struct configfs_attribute *target_core_dev_attrib_attrs[] = { &target_core_dev_attrib_emulate_tpu.attr, &target_core_dev_attrib_emulate_tpws.attr, &target_core_dev_attrib_enforce_pr_isids.attr, + &target_core_dev_attrib_is_nonrot.attr, &target_core_dev_attrib_hw_block_size.attr, &target_core_dev_attrib_block_size.attr, &target_core_dev_attrib_hw_max_sectors.attr, diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index f13e2941936..440e6b69d47 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -853,6 +853,7 @@ void se_dev_set_default_attribs( dev->se_sub_dev->se_dev_attrib.emulate_reservations = DA_EMULATE_RESERVATIONS; dev->se_sub_dev->se_dev_attrib.emulate_alua = DA_EMULATE_ALUA; dev->se_sub_dev->se_dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS; + dev->se_sub_dev->se_dev_attrib.is_nonrot = DA_IS_NONROT; /* * The TPU=1 and TPWS=1 settings will be set in TCM/IBLOCK * iblock_create_virtdevice() from struct queue_limits values @@ -1117,6 +1118,18 @@ int se_dev_set_enforce_pr_isids(struct se_device *dev, int flag) return 0; } +int se_dev_set_is_nonrot(struct se_device *dev, int flag) +{ + if ((flag != 0) && (flag != 1)) { + printk(KERN_ERR "Illegal value %d\n", flag); + return -EINVAL; + } + dev->se_sub_dev->se_dev_attrib.is_nonrot = flag; + printk(KERN_INFO "dev[%p]: SE Device is_nonrot bit: %d\n", + dev, flag); + return 0; +} + /* * Note, this can only be called on unexported SE Device Object. */ diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 160c484fd3d..392e75fb108 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -196,6 +196,9 @@ static struct se_device *iblock_create_virtdevice( " disabled by default\n"); } + if (blk_queue_nonrot(q)) + dev->se_sub_dev->se_dev_attrib.is_nonrot = 1; + return dev; failed: |