Display EVPD pages in sysfs

index 9117d0b..9aee0e3 100644
@@ -579,7 +579,6 @@ static int scsi_sdev_check_buf_bit(const char *buf)
  * Create the actual show/store functions and data structures.
  */
 sdev_rd_attr (device_blocked, "%d\n");
-sdev_rd_attr (queue_depth, "%d\n");
 sdev_rd_attr (device_busy, "%d\n");
 sdev_rd_attr (type, "%d\n");
 sdev_rd_attr (scsi_level, "%d\n");

@@ -723,7 +722,37 @@ show_queue_type_field(struct device *dev, struct device_attribute *attr,
 	return snprintf(buf, 20, "%s\n", name);
 }
 
-static DEVICE_ATTR(queue_type, S_IRUGO, show_queue_type_field, NULL);
+static ssize_t
+store_queue_type_field(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct scsi_host_template *sht = sdev->host->hostt;
+	int tag_type = 0, retval;
+	int prev_tag_type = scsi_get_tag_type(sdev);
+
+	if (!sdev->tagged_supported || !sht->change_queue_type)
+		return -EINVAL;
+
+	if (strncmp(buf, "ordered", 7) == 0)
+		tag_type = MSG_ORDERED_TAG;
+	else if (strncmp(buf, "simple", 6) == 0)
+		tag_type = MSG_SIMPLE_TAG;
+	else if (strncmp(buf, "none", 4) != 0)
+		return -EINVAL;
+
+	if (tag_type == prev_tag_type)
+		return count;
+
+	retval = sht->change_queue_type(sdev, tag_type);
+	if (retval < 0)
+		return retval;
+
+	return count;
+}
+
+static DEVICE_ATTR(queue_type, S_IRUGO | S_IWUSR, show_queue_type_field,
+		   store_queue_type_field);
 
 static ssize_t
 show_iostat_counterbits(struct device *dev, struct device_attribute *attr, 				char *buf)

@@ -797,46 +826,9 @@ DECLARE_EVT(soft_threshold_reached, SOFT_THRESHOLD_REACHED_REPORTED)
 DECLARE_EVT(mode_parameter_change_reported, MODE_PARAMETER_CHANGE_REPORTED)
 DECLARE_EVT(lun_change_reported, LUN_CHANGE_REPORTED)
 
-/* Default template for device attributes.  May NOT be modified */
-static struct attribute *scsi_sdev_attrs[] = {
-	&dev_attr_device_blocked.attr,
-	&dev_attr_type.attr,
-	&dev_attr_scsi_level.attr,
-	&dev_attr_device_busy.attr,
-	&dev_attr_vendor.attr,
-	&dev_attr_model.attr,
-	&dev_attr_rev.attr,
-	&dev_attr_rescan.attr,
-	&dev_attr_delete.attr,
-	&dev_attr_state.attr,
-	&dev_attr_timeout.attr,
-	&dev_attr_eh_timeout.attr,
-	&dev_attr_iocounterbits.attr,
-	&dev_attr_iorequest_cnt.attr,
-	&dev_attr_iodone_cnt.attr,
-	&dev_attr_ioerr_cnt.attr,
-	&dev_attr_modalias.attr,
-	REF_EVT(media_change),
-	REF_EVT(inquiry_change_reported),
-	REF_EVT(capacity_change_reported),
-	REF_EVT(soft_threshold_reached),
-	REF_EVT(mode_parameter_change_reported),
-	REF_EVT(lun_change_reported),
-	NULL
-};
-
-static struct attribute_group scsi_sdev_attr_group = {
-	.attrs =	scsi_sdev_attrs,
-};
-
-static const struct attribute_group *scsi_sdev_attr_groups[] = {
-	&scsi_sdev_attr_group,
-	NULL
-};
-
 static ssize_t
-sdev_store_queue_depth_rw(struct device *dev, struct device_attribute *attr,
-			  const char *buf, size_t count)
+sdev_store_queue_depth(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
 {
 	int depth, retval;
 	struct scsi_device *sdev = to_scsi_device(dev);

@@ -859,10 +851,10 @@ sdev_store_queue_depth_rw(struct device *dev, struct device_attribute *attr,
 
 	return count;
 }
+sdev_show_function(queue_depth, "%d\n");
 
-static struct device_attribute sdev_attr_queue_depth_rw =
-	__ATTR(queue_depth, S_IRUGO | S_IWUSR, sdev_show_queue_depth,
-	       sdev_store_queue_depth_rw);
+static DEVICE_ATTR(queue_depth, S_IRUGO | S_IWUSR, sdev_show_queue_depth,
+		   sdev_store_queue_depth);
 
 static ssize_t
 sdev_show_queue_ramp_up_period(struct device *dev,

@@ -890,39 +882,79 @@ sdev_store_queue_ramp_up_period(struct device *dev,
 	return period;
 }
 
-static struct device_attribute sdev_attr_queue_ramp_up_period =
-	__ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,
-	       sdev_show_queue_ramp_up_period,
-	       sdev_store_queue_ramp_up_period);
+static DEVICE_ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,
+		   sdev_show_queue_ramp_up_period,
+		   sdev_store_queue_ramp_up_period);
 
-static ssize_t
-sdev_store_queue_type_rw(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
+					 struct attribute *attr, int i)
 {
-	struct scsi_device *sdev = to_scsi_device(dev);
-	struct scsi_host_template *sht = sdev->host->hostt;
-	int tag_type = 0, retval;
-	int prev_tag_type = scsi_get_tag_type(sdev);
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct scsi_device *sdev = to_scsi_device(dev);			\
 
-	if (!sdev->tagged_supported || !sht->change_queue_type)
-		return -EINVAL;
 
-	if (strncmp(buf, "ordered", 7) == 0)
-		tag_type = MSG_ORDERED_TAG;
-	else if (strncmp(buf, "simple", 6) == 0)
-		tag_type = MSG_SIMPLE_TAG;
-	else if (strncmp(buf, "none", 4) != 0)
-		return -EINVAL;
+	if (attr == &dev_attr_queue_depth.attr) {
+		if (sdev->host->hostt->change_queue_depth)
+			return S_IRUGO | S_IWUSR;
+		else
+			return S_IRUGO;
+	}
+	if (attr == &dev_attr_queue_ramp_up_period.attr) {
+		if (sdev->host->hostt->change_queue_depth)
+			return S_IRUGO | S_IWUSR;
+		else
+			return 0;
+	}
+	if (attr == &dev_attr_queue_type.attr) {
+		if (sdev->host->hostt->change_queue_type)
+			return S_IRUGO | S_IWUSR;
+		else
+			return S_IRUGO;
+	}
 
-	if (tag_type == prev_tag_type)
-		return count;
+	return attr->mode;
+}
 
-	retval = sht->change_queue_type(sdev, tag_type);
-	if (retval < 0)
-		return retval;
+/* Default template for device attributes.  May NOT be modified */
+static struct attribute *scsi_sdev_attrs[] = {
+	&dev_attr_device_blocked.attr,
+	&dev_attr_type.attr,
+	&dev_attr_scsi_level.attr,
+	&dev_attr_device_busy.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_model.attr,
+	&dev_attr_rev.attr,
+	&dev_attr_rescan.attr,
+	&dev_attr_delete.attr,
+	&dev_attr_state.attr,
+	&dev_attr_timeout.attr,
+	&dev_attr_eh_timeout.attr,
+	&dev_attr_iocounterbits.attr,
+	&dev_attr_iorequest_cnt.attr,
+	&dev_attr_iodone_cnt.attr,
+	&dev_attr_ioerr_cnt.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_queue_depth.attr,
+	&dev_attr_queue_type.attr,
+	&dev_attr_queue_ramp_up_period.attr,
+	REF_EVT(media_change),
+	REF_EVT(inquiry_change_reported),
+	REF_EVT(capacity_change_reported),
+	REF_EVT(soft_threshold_reached),
+	REF_EVT(mode_parameter_change_reported),
+	REF_EVT(lun_change_reported),
+	NULL
+};
 
-	return count;
-}
+static struct attribute_group scsi_sdev_attr_group = {
+	.attrs =	scsi_sdev_attrs,
+	.is_visible =	scsi_sdev_attr_is_visible,
+};
+
+static const struct attribute_group *scsi_sdev_attr_groups[] = {
+	&scsi_sdev_attr_group,
+	NULL
+};
 
 static int scsi_target_add(struct scsi_target *starget)
 {

@@ -946,10 +978,6 @@ static int scsi_target_add(struct scsi_target *starget)
 	return 0;
 }
 
-static struct device_attribute sdev_attr_queue_type_rw =
-	__ATTR(queue_type, S_IRUGO | S_IWUSR, show_queue_type_field,
-	       sdev_store_queue_type_rw);
-
 /**
  * scsi_sysfs_add_sdev - add scsi device to sysfs
  * @sdev:	scsi_device to add

@@ -1003,25 +1031,6 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 	transport_add_device(&sdev->sdev_gendev);
 	sdev->is_visible = 1;
 
-	/* create queue files, which may be writable, depending on the host */
-	if (sdev->host->hostt->change_queue_depth) {
-		error = device_create_file(&sdev->sdev_gendev,
-					   &sdev_attr_queue_depth_rw);
-		error = device_create_file(&sdev->sdev_gendev,
-					   &sdev_attr_queue_ramp_up_period);
-	}
-	else
-		error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth);
-	if (error)
-		return error;
-
-	if (sdev->host->hostt->change_queue_type)
-		error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw);
-	else
-		error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type);
-	if (error)
-		return error;
-
 	error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL);
 
 	if (error)

index 307a811..073fb84 100644
@@ -929,6 +929,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	if (*bflags & BLIST_SKIP_VPD_PAGES)
 		sdev->skip_vpd_pages = 1;
 
+	if (sdev->scsi_level >= SCSI_3)
+		scsi_attach_vpd_ident(sdev);
+
 	transport_configure_device(&sdev->sdev_gendev);
 
 	if (sdev->host->hostt->slave_configure) {

348 lines not on this page · raw message

index 0a4edfe..8fd13bb 100644
@@ -334,7 +334,7 @@ static inline int scsi_status_is_good(int status)
 #define TYPE_OSD            0x11
 #define TYPE_NO_LUN         0x7f
 
-/* SCSI protocols; these are taken from SPC-3 section 7.5 */
+/* SCSI protocols; these are taken from SPC-4 section 7.6 */
 enum scsi_protocol {
 	SCSI_PROTOCOL_FCP = 0,	/* Fibre Channel */
 	SCSI_PROTOCOL_SPI = 1,	/* parallel SCSI */

@@ -345,6 +345,8 @@ enum scsi_protocol {
 	SCSI_PROTOCOL_SAS = 6,
 	SCSI_PROTOCOL_ADT = 7,	/* Media Changers */
 	SCSI_PROTOCOL_ATA = 8,
+	SCSI_PROTOCOL_UAS = 9,
+	SCSI_PROTOCOL_SOP = 0xa,
 	SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
 };
 

index dcb2b73..81c7900 100644
@@ -113,6 +113,8 @@ struct scsi_device {
 	const char * vendor;		/* [back_compat] point into 'inquiry' ... */
 	const char * model;		/* ... after scan; point to static string */
 	const char * rev;		/* ... "nullnullnullnull" before scan */
+	unsigned char vpd_ident_len;
+	unsigned char *vpd_ident;
 	struct scsi_target      *sdev_target;   /* used only for single_lun */
 
 	unsigned int	sdev_bflags; /* black/white flags as also found in

@@ -308,6 +310,7 @@ extern int scsi_add_device(struct Scsi_Host *host, uint channel,
 extern int scsi_register_device_handler(struct scsi_device_handler *scsi_dh);
 extern void scsi_remove_device(struct scsi_device *);
 extern int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh);
+void scsi_attach_vpd_ident(struct scsi_device *sdev);
 
 extern int scsi_device_get(struct scsi_device *);
 extern void scsi_device_put(struct scsi_device *);