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-rw-r--r--drivers/scsi/Makefile8
-rw-r--r--drivers/scsi/scsi_scan.c1
-rw-r--r--drivers/scsi/scsi_sysfs.c37
3 files changed, 46 insertions, 0 deletions
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 93dbe58c47c8..c4298c7fe819 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -191,6 +191,14 @@ clean-files := 53c700_d.h 53c700_u.h
$(obj)/53c700.o $(MODVERDIR)/$(obj)/53c700.ver: $(obj)/53c700_d.h
+$(obj)/scsi_sysfs.o: $(obj)/scsi_devinfo_tbl.c
+
+quiet_cmd_bflags = GEN $@
+ cmd_bflags = sed -n 's/.*BLIST_\([A-Z0-9_]*\) *.*/BLIST_FLAG_NAME(\1),/p' $< > $@
+
+$(obj)/scsi_devinfo_tbl.c: include/scsi/scsi_devinfo.h
+ $(call if_changed,bflags)
+
# If you want to play with the firmware, uncomment
# GENERATE_FIRMWARE := 1
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index e7818afeda2b..26edd61a5554 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -984,6 +984,7 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
scsi_attach_vpd(sdev);
sdev->max_queue_depth = sdev->queue_depth;
+ sdev->sdev_bflags = *bflags;
/*
* Ok, the device is now all set up, we can
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index cfc5e316f6cb..e7714547b310 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -20,6 +20,7 @@
#include <scsi/scsi_dh.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_driver.h>
+#include <scsi/scsi_devinfo.h>
#include "scsi_priv.h"
#include "scsi_logging.h"
@@ -966,6 +967,41 @@ sdev_show_wwid(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(wwid, S_IRUGO, sdev_show_wwid, NULL);
+#define BLIST_FLAG_NAME(name) [ilog2(BLIST_##name)] = #name
+static const char *const sdev_bflags_name[] = {
+#include "scsi_devinfo_tbl.c"
+};
+#undef BLIST_FLAG_NAME
+
+static ssize_t
+sdev_show_blacklist(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ int i;
+ ssize_t len = 0;
+
+ for (i = 0; i < sizeof(sdev->sdev_bflags) * BITS_PER_BYTE; i++) {
+ const char *name = NULL;
+
+ if (!(sdev->sdev_bflags & BIT(i)))
+ continue;
+ if (i < ARRAY_SIZE(sdev_bflags_name) && sdev_bflags_name[i])
+ name = sdev_bflags_name[i];
+
+ if (name)
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "%s%s", len ? " " : "", name);
+ else
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "%sINVALID_BIT(%d)", len ? " " : "", i);
+ }
+ if (len)
+ len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+ return len;
+}
+static DEVICE_ATTR(blacklist, S_IRUGO, sdev_show_blacklist, NULL);
+
#ifdef CONFIG_SCSI_DH
static ssize_t
sdev_show_dh_state(struct device *dev, struct device_attribute *attr,
@@ -1151,6 +1187,7 @@ static struct attribute *scsi_sdev_attrs[] = {
&dev_attr_queue_depth.attr,
&dev_attr_queue_type.attr,
&dev_attr_wwid.attr,
+ &dev_attr_blacklist.attr,
#ifdef CONFIG_SCSI_DH
&dev_attr_dh_state.attr,
&dev_attr_access_state.attr,