diff options
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 7b0383e42b4c..d90fefffe31b 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -528,6 +528,21 @@ max_write_same_blocks_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(max_write_same_blocks); +static ssize_t +zoned_cap_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + + if (sdkp->device->type == TYPE_ZBC) + return sprintf(buf, "host-managed\n"); + if (sdkp->zoned == 1) + return sprintf(buf, "host-aware\n"); + if (sdkp->zoned == 2) + return sprintf(buf, "drive-managed\n"); + return sprintf(buf, "none\n"); +} +static DEVICE_ATTR_RO(zoned_cap); + static struct attribute *sd_disk_attrs[] = { &dev_attr_cache_type.attr, &dev_attr_FUA.attr, @@ -541,6 +556,7 @@ static struct attribute *sd_disk_attrs[] = { &dev_attr_zeroing_mode.attr, &dev_attr_max_write_same_blocks.attr, &dev_attr_max_medium_access_timeouts.attr, + &dev_attr_zoned_cap.attr, NULL, }; ATTRIBUTE_GROUPS(sd_disk); @@ -2962,6 +2978,9 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp) * with partitions as regular block devices. */ q->limits.zoned = BLK_ZONED_NONE; + if (sdkp->zoned == 2 && sdkp->first_scan) + sd_printk(KERN_NOTICE, sdkp, + "Drive-managed SMR disk\n"); } } if (blk_queue_is_zoned(q) && sdkp->first_scan) |