1 files changed, 302 insertions, 125 deletions

diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 43a964d635b..c341f855fad 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -53,8 +53,8 @@ struct sas_host_attrs {
 /*
  * Hack to allow attributes of the same name in different objects.
  */
-#define SAS_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
-	struct class_device_attribute class_device_attr_##_prefix##_##_name = \
+#define SAS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \
+	struct device_attribute dev_attr_##_prefix##_##_name = \
 	__ATTR(_name,_mode,_show,_store)
 
 
@@ -151,10 +151,22 @@ static struct {
 	{ SAS_LINK_RATE_1_5_GBPS,	"1.5 Gbit" },
 	{ SAS_LINK_RATE_3_0_GBPS,	"3.0 Gbit" },
 	{ SAS_LINK_RATE_6_0_GBPS,	"6.0 Gbit" },
+	{ SAS_LINK_RATE_12_0_GBPS,	"12.0 Gbit" },
 };
 sas_bitfield_name_search(linkspeed, sas_linkspeed_names)
 sas_bitfield_name_set(linkspeed, sas_linkspeed_names)
 
+static struct sas_end_device *sas_sdev_to_rdev(struct scsi_device *sdev)
+{
+	struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target);
+	struct sas_end_device *rdev;
+
+	BUG_ON(rphy->identify.device_type != SAS_END_DEVICE);
+
+	rdev = rphy_to_end_device(rphy);
+	return rdev;
+}
+
 static void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost,
 			    struct sas_rphy *rphy)
 {
@@ -162,22 +174,16 @@ static void sas_smp_request(struct request_queue *q, struct Scsi_Host *shost,
 	int ret;
 	int (*handler)(struct Scsi_Host *, struct sas_rphy *, struct request *);
 
-	while (!blk_queue_plugged(q)) {
-		req = elv_next_request(q);
-		if (!req)
-			break;
-
-		blkdev_dequeue_request(req);
-
+	while ((req = blk_fetch_request(q)) != NULL) {
 		spin_unlock_irq(q->queue_lock);
 
 		handler = to_sas_internal(shost->transportt)->f->smp_handler;
 		ret = handler(shost, rphy, req);
 		req->errors = ret;
 
-		spin_lock_irq(q->queue_lock);
+		blk_end_request_all(req, ret);
 
-		req->end_io(req, ret);
+		spin_lock_irq(q->queue_lock);
 	}
 }
 
@@ -192,13 +198,24 @@ static void sas_non_host_smp_request(struct request_queue *q)
 	sas_smp_request(q, rphy_to_shost(rphy), rphy);
 }
 
+static void sas_host_release(struct device *dev)
+{
+	struct Scsi_Host *shost = dev_to_shost(dev);
+	struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
+	struct request_queue *q = sas_host->q;
+
+	if (q)
+		blk_cleanup_queue(q);
+}
+
 static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
 {
 	struct request_queue *q;
 	int error;
 	struct device *dev;
-	char namebuf[BUS_ID_SIZE];
+	char namebuf[20];
 	const char *name;
+	void (*release)(struct device *);
 
 	if (!to_sas_internal(shost->transportt)->f->smp_handler) {
 		printk("%s can't handle SMP requests\n", shost->hostt->name);
@@ -208,18 +225,20 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
 	if (rphy) {
 		q = blk_init_queue(sas_non_host_smp_request, NULL);
 		dev = &rphy->dev;
-		name = dev->bus_id;
+		name = dev_name(dev);
+		release = NULL;
 	} else {
 		q = blk_init_queue(sas_host_smp_request, NULL);
 		dev = &shost->shost_gendev;
 		snprintf(namebuf, sizeof(namebuf),
 			 "sas_host%d", shost->host_no);
 		name = namebuf;
+		release = sas_host_release;
 	}
 	if (!q)
 		return -ENOMEM;
 
-	error = bsg_register_queue(q, dev, name);
+	error = bsg_register_queue(q, dev, name, release);
 	if (error) {
 		blk_cleanup_queue(q);
 		return -ENOMEM;
@@ -235,8 +254,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
 	else
 		q->queuedata = shost;
 
-	set_bit(QUEUE_FLAG_BIDI, &q->queue_flags);
-
+	queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
 	return 0;
 }
 
@@ -253,7 +271,6 @@ static void sas_bsg_remove(struct Scsi_Host *shost, struct sas_rphy *rphy)
 		return;
 
 	bsg_unregister_queue(q);
-	blk_cleanup_queue(q);
 }
 
 /*
@@ -261,7 +278,7 @@ static void sas_bsg_remove(struct Scsi_Host *shost, struct sas_rphy *rphy)
  */
 
 static int sas_host_setup(struct transport_container *tc, struct device *dev,
-			  struct class_device *cdev)
+			  struct device *cdev)
 {
 	struct Scsi_Host *shost = dev_to_shost(dev);
 	struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
@@ -280,7 +297,7 @@ static int sas_host_setup(struct transport_container *tc, struct device *dev,
 }
 
 static int sas_host_remove(struct transport_container *tc, struct device *dev,
-			   struct class_device *cdev)
+			   struct device *cdev)
 {
 	struct Scsi_Host *shost = dev_to_shost(dev);
 
@@ -349,6 +366,85 @@ void sas_remove_host(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL(sas_remove_host);
 
+/**
+ * sas_tlr_supported - checking TLR bit in vpd 0x90
+ * @sdev: scsi device struct
+ *
+ * Check Transport Layer Retries are supported or not.
+ * If vpd page 0x90 is present, TRL is supported.
+ *
+ */
+unsigned int
+sas_tlr_supported(struct scsi_device *sdev)
+{
+	const int vpd_len = 32;
+	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+	char *buffer = kzalloc(vpd_len, GFP_KERNEL);
+	int ret = 0;
+
+	if (scsi_get_vpd_page(sdev, 0x90, buffer, vpd_len))
+		goto out;
+
+	/*
+	 * Magic numbers: the VPD Protocol page (0x90)
+	 * has a 4 byte header and then one entry per device port
+	 * the TLR bit is at offset 8 on each port entry
+	 * if we take the first port, that's at total offset 12
+	 */
+	ret = buffer[12] & 0x01;
+
+ out:
+	kfree(buffer);
+	rdev->tlr_supported = ret;
+	return ret;
+
+}
+EXPORT_SYMBOL_GPL(sas_tlr_supported);
+
+/**
+ * sas_disable_tlr - setting TLR flags
+ * @sdev: scsi device struct
+ *
+ * Seting tlr_enabled flag to 0.
+ *
+ */
+void
+sas_disable_tlr(struct scsi_device *sdev)
+{
+	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+
+	rdev->tlr_enabled = 0;
+}
+EXPORT_SYMBOL_GPL(sas_disable_tlr);
+
+/**
+ * sas_enable_tlr - setting TLR flags
+ * @sdev: scsi device struct
+ *
+ * Seting tlr_enabled flag 1.
+ *
+ */
+void sas_enable_tlr(struct scsi_device *sdev)
+{
+	unsigned int tlr_supported = 0;
+	tlr_supported  = sas_tlr_supported(sdev);
+
+	if (tlr_supported) {
+		struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+
+		rdev->tlr_enabled = 1;
+	}
+
+	return;
+}
+EXPORT_SYMBOL_GPL(sas_enable_tlr);
+
+unsigned int sas_is_tlr_enabled(struct scsi_device *sdev)
+{
+	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+	return rdev->tlr_enabled;
+}
+EXPORT_SYMBOL_GPL(sas_is_tlr_enabled);
 
 /*
  * SAS Phy attributes
@@ -356,22 +452,24 @@ EXPORT_SYMBOL(sas_remove_host);
 
 #define sas_phy_show_simple(field, name, format_string, cast)		\
 static ssize_t								\
-show_sas_phy_##name(struct class_device *cdev, char *buf)		\
+show_sas_phy_##name(struct device *dev, 				\
+		    struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_phy *phy = transport_class_to_phy(cdev);		\
+	struct sas_phy *phy = transport_class_to_phy(dev);		\
 									\
 	return snprintf(buf, 20, format_string, cast phy->field);	\
 }
 
 #define sas_phy_simple_attr(field, name, format_string, type)		\
 	sas_phy_show_simple(field, name, format_string, (type))	\
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
+static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
 
 #define sas_phy_show_protocol(field, name)				\
 static ssize_t								\
-show_sas_phy_##name(struct class_device *cdev, char *buf)		\
+show_sas_phy_##name(struct device *dev, 				\
+		    struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_phy *phy = transport_class_to_phy(cdev);		\
+	struct sas_phy *phy = transport_class_to_phy(dev);		\
 									\
 	if (!phy->field)						\
 		return snprintf(buf, 20, "none\n");			\
@@ -380,13 +478,14 @@ show_sas_phy_##name(struct class_device *cdev, char *buf)		\
 
 #define sas_phy_protocol_attr(field, name)				\
 	sas_phy_show_protocol(field, name)				\
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
+static DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL)
 
 #define sas_phy_show_linkspeed(field)					\
 static ssize_t								\
-show_sas_phy_##field(struct class_device *cdev, char *buf)		\
+show_sas_phy_##field(struct device *dev, 				\
+		     struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_phy *phy = transport_class_to_phy(cdev);		\
+	struct sas_phy *phy = transport_class_to_phy(dev);		\
 									\
 	return get_sas_linkspeed_names(phy->field, buf);		\
 }
@@ -394,10 +493,11 @@ show_sas_phy_##field(struct class_device *cdev, char *buf)		\
 /* Fudge to tell if we're minimum or maximum */
 #define sas_phy_store_linkspeed(field)					\
 static ssize_t								\
-store_sas_phy_##field(struct class_device *cdev, const char *buf,	\
-		      size_t count)					\
+store_sas_phy_##field(struct device *dev, 				\
+		      struct device_attribute *attr, 			\
+		      const char *buf,	size_t count)			\
 {									\
-	struct sas_phy *phy = transport_class_to_phy(cdev);		\
+	struct sas_phy *phy = transport_class_to_phy(dev);		\
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);	\
 	struct sas_internal *i = to_sas_internal(shost->transportt);	\
 	u32 value;							\
@@ -416,19 +516,20 @@ store_sas_phy_##field(struct class_device *cdev, const char *buf,	\
 #define sas_phy_linkspeed_rw_attr(field)				\
 	sas_phy_show_linkspeed(field)					\
 	sas_phy_store_linkspeed(field)					\
-static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field,		\
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field,		\
 	store_sas_phy_##field)
 
 #define sas_phy_linkspeed_attr(field)					\
 	sas_phy_show_linkspeed(field)					\
-static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
 
 
 #define sas_phy_show_linkerror(field)					\
 static ssize_t								\
-show_sas_phy_##field(struct class_device *cdev, char *buf)		\
+show_sas_phy_##field(struct device *dev, 				\
+		     struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_phy *phy = transport_class_to_phy(cdev);		\
+	struct sas_phy *phy = transport_class_to_phy(dev);		\
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);	\
 	struct sas_internal *i = to_sas_internal(shost->transportt);	\
 	int error;							\
@@ -441,24 +542,25 @@ show_sas_phy_##field(struct class_device *cdev, char *buf)		\
 
 #define sas_phy_linkerror_attr(field)					\
 	sas_phy_show_linkerror(field)					\
-static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
+static DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL)
 
 
 static ssize_t
-show_sas_device_type(struct class_device *cdev, char *buf)
+show_sas_device_type(struct device *dev,
+		     struct device_attribute *attr, char *buf)
 {
-	struct sas_phy *phy = transport_class_to_phy(cdev);
+	struct sas_phy *phy = transport_class_to_phy(dev);
 
 	if (!phy->identify.device_type)
 		return snprintf(buf, 20, "none\n");
 	return get_sas_device_type_names(phy->identify.device_type, buf);
 }
-static CLASS_DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL);
+static DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL);
 
-static ssize_t do_sas_phy_enable(struct class_device *cdev,
+static ssize_t do_sas_phy_enable(struct device *dev,
 		size_t count, int enable)
 {
-	struct sas_phy *phy = transport_class_to_phy(cdev);
+	struct sas_phy *phy = transport_class_to_phy(dev);
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
 	struct sas_internal *i = to_sas_internal(shost->transportt);
 	int error;
@@ -470,18 +572,19 @@ static ssize_t do_sas_phy_enable(struct class_device *cdev,
 	return count;
 };
 
-static ssize_t store_sas_phy_enable(struct class_device *cdev,
-		const char *buf, size_t count)
+static ssize_t
+store_sas_phy_enable(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count)
 {
 	if (count < 1)
 		return -EINVAL;
 
 	switch (buf[0]) {
 	case '0':
-		do_sas_phy_enable(cdev, count, 0);
+		do_sas_phy_enable(dev, count, 0);
 		break;
 	case '1':
-		do_sas_phy_enable(cdev, count, 1);
+		do_sas_phy_enable(dev, count, 1);
 		break;
 	default:
 		return -EINVAL;
@@ -490,20 +593,22 @@ static ssize_t store_sas_phy_enable(struct class_device *cdev,
 	return count;
 }
 
-static ssize_t show_sas_phy_enable(struct class_device *cdev, char *buf)
+static ssize_t
+show_sas_phy_enable(struct device *dev, struct device_attribute *attr,
+		    char *buf)
 {
-	struct sas_phy *phy = transport_class_to_phy(cdev);
+	struct sas_phy *phy = transport_class_to_phy(dev);
 
 	return snprintf(buf, 20, "%d", phy->enabled);
 }
 
-static CLASS_DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable,
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable,
 			 store_sas_phy_enable);
 
-static ssize_t do_sas_phy_reset(struct class_device *cdev,
-		size_t count, int hard_reset)
+static ssize_t
+do_sas_phy_reset(struct device *dev, size_t count, int hard_reset)
 {
-	struct sas_phy *phy = transport_class_to_phy(cdev);
+	struct sas_phy *phy = transport_class_to_phy(dev);
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
 	struct sas_internal *i = to_sas_internal(shost->transportt);
 	int error;
@@ -511,22 +616,25 @@ static ssize_t do_sas_phy_reset(struct class_device *cdev,
 	error = i->f->phy_reset(phy, hard_reset);
 	if (error)
 		return error;
+	phy->enabled = 1;
 	return count;
 };
 
-static ssize_t store_sas_link_reset(struct class_device *cdev,
-		const char *buf, size_t count)
+static ssize_t
+store_sas_link_reset(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count)
 {
-	return do_sas_phy_reset(cdev, count, 0);
+	return do_sas_phy_reset(dev, count, 0);
 }
-static CLASS_DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset);
+static DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset);
 
-static ssize_t store_sas_hard_reset(struct class_device *cdev,
-		const char *buf, size_t count)
+static ssize_t
+store_sas_hard_reset(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count)
 {
-	return do_sas_phy_reset(cdev, count, 1);
+	return do_sas_phy_reset(dev, count, 1);
 }
-static CLASS_DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset);
+static DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset);
 
 sas_phy_protocol_attr(identify.initiator_port_protocols,
 		initiator_port_protocols);
@@ -546,9 +654,21 @@ sas_phy_linkerror_attr(running_disparity_error_count);
 sas_phy_linkerror_attr(loss_of_dword_sync_count);
 sas_phy_linkerror_attr(phy_reset_problem_count);
 
+static int sas_phy_setup(struct transport_container *tc, struct device *dev,
+			 struct device *cdev)
+{
+	struct sas_phy *phy = dev_to_phy(dev);
+	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+	struct sas_internal *i = to_sas_internal(shost->transportt);
+
+	if (i->f->phy_setup)
+		i->f->phy_setup(phy);
+
+	return 0;
+}
 
 static DECLARE_TRANSPORT_CLASS(sas_phy_class,
-		"sas_phy", NULL, NULL, NULL);
+		"sas_phy", sas_phy_setup, NULL, NULL);
 
 static int sas_phy_match(struct attribute_container *cont, struct device *dev)
 {
@@ -572,7 +692,11 @@ static int sas_phy_match(struct attribute_container *cont, struct device *dev)
 static void sas_phy_release(struct device *dev)
 {
 	struct sas_phy *phy = dev_to_phy(dev);
+	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+	struct sas_internal *i = to_sas_internal(shost->transportt);
 
+	if (i->f->phy_release)
+		i->f->phy_release(phy);
 	put_device(dev->parent);
 	kfree(phy);
 }
@@ -607,10 +731,10 @@ struct sas_phy *sas_phy_alloc(struct device *parent, int number)
 	INIT_LIST_HEAD(&phy->port_siblings);
 	if (scsi_is_sas_expander_device(parent)) {
 		struct sas_rphy *rphy = dev_to_rphy(parent);
-		sprintf(phy->dev.bus_id, "phy-%d:%d:%d", shost->host_no,
+		dev_set_name(&phy->dev, "phy-%d:%d:%d", shost->host_no,
 			rphy->scsi_target_id, number);
 	} else
-		sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number);
+		dev_set_name(&phy->dev, "phy-%d:%d", shost->host_no, number);
 
 	transport_setup_device(&phy->dev);
 
@@ -646,7 +770,7 @@ EXPORT_SYMBOL(sas_phy_add);
  *
  * Note:
  *   This function must only be called on a PHY that has not
- *   sucessfully been added using sas_phy_add().
+ *   successfully been added using sas_phy_add().
  */
 void sas_phy_free(struct sas_phy *phy)
 {
@@ -695,16 +819,17 @@ EXPORT_SYMBOL(scsi_is_sas_phy);
  */
 #define sas_port_show_simple(field, name, format_string, cast)		\
 static ssize_t								\
-show_sas_port_##name(struct class_device *cdev, char *buf)		\
+show_sas_port_##name(struct device *dev, 				\
+		     struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_port *port = transport_class_to_sas_port(cdev);	\
+	struct sas_port *port = transport_class_to_sas_port(dev);	\
 									\
 	return snprintf(buf, 20, format_string, cast port->field);	\
 }
 
 #define sas_port_simple_attr(field, name, format_string, type)		\
 	sas_port_show_simple(field, name, format_string, (type))	\
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL)
+static DEVICE_ATTR(name, S_IRUGO, show_sas_port_##name, NULL)
 
 sas_port_simple_attr(num_phys, num_phys, "%d\n", int);
 
@@ -747,7 +872,7 @@ static void sas_port_create_link(struct sas_port *port,
 	int res;
 
 	res = sysfs_create_link(&port->dev.kobj, &phy->dev.kobj,
-				phy->dev.bus_id);
+				dev_name(&phy->dev));
 	if (res)
 		goto err;
 	res = sysfs_create_link(&phy->dev.kobj, &port->dev.kobj, "port");
@@ -756,13 +881,13 @@ static void sas_port_create_link(struct sas_port *port,
 	return;
 err:
 	printk(KERN_ERR "%s: Cannot create port links, err=%d\n",
-	       __FUNCTION__, res);
+	       __func__, res);
 }
 
 static void sas_port_delete_link(struct sas_port *port,
 				 struct sas_phy *phy)
 {
-	sysfs_remove_link(&port->dev.kobj, phy->dev.bus_id);
+	sysfs_remove_link(&port->dev.kobj, dev_name(&phy->dev));
 	sysfs_remove_link(&phy->dev.kobj, "port");
 }
 
@@ -798,11 +923,11 @@ struct sas_port *sas_port_alloc(struct device *parent, int port_id)
 
 	if (scsi_is_sas_expander_device(parent)) {
 		struct sas_rphy *rphy = dev_to_rphy(parent);
-		sprintf(port->dev.bus_id, "port-%d:%d:%d", shost->host_no,
-			rphy->scsi_target_id, port->port_identifier);
+		dev_set_name(&port->dev, "port-%d:%d:%d", shost->host_no,
+			     rphy->scsi_target_id, port->port_identifier);
 	} else
-		sprintf(port->dev.bus_id, "port-%d:%d", shost->host_no,
-			port->port_identifier);
+		dev_set_name(&port->dev, "port-%d:%d", shost->host_no,
+			     port->port_identifier);
 
 	transport_setup_device(&port->dev);
 
@@ -875,7 +1000,7 @@ EXPORT_SYMBOL(sas_port_add);
  *
  * Note:
  *   This function must only be called on a PORT that has not
- *   sucessfully been added using sas_port_add().
+ *   successfully been added using sas_port_add().
  */
 void sas_port_free(struct sas_port *port)
 {
@@ -912,7 +1037,7 @@ void sas_port_delete(struct sas_port *port)
 	if (port->is_backlink) {
 		struct device *parent = port->dev.parent;
 
-		sysfs_remove_link(&port->dev.kobj, parent->bus_id);
+		sysfs_remove_link(&port->dev.kobj, dev_name(parent));
 		port->is_backlink = 0;
 	}
 
@@ -937,6 +1062,29 @@ int scsi_is_sas_port(const struct device *dev)
 EXPORT_SYMBOL(scsi_is_sas_port);
 
 /**
+ * sas_port_get_phy - try to take a reference on a port member
+ * @port: port to check
+ */
+struct sas_phy *sas_port_get_phy(struct sas_port *port)
+{
+	struct sas_phy *phy;
+
+	mutex_lock(&port->phy_list_mutex);
+	if (list_empty(&port->phy_list))
+		phy = NULL;
+	else {
+		struct list_head *ent = port->phy_list.next;
+
+		phy = list_entry(ent, typeof(*phy), port_siblings);
+		get_device(&phy->dev);
+	}
+	mutex_unlock(&port->phy_list_mutex);
+
+	return phy;
+}
+EXPORT_SYMBOL(sas_port_get_phy);
+
+/**
  * sas_port_add_phy - add another phy to a port to form a wide port
  * @port:	port to add the phy to
  * @phy:	phy to add
@@ -961,7 +1109,8 @@ void sas_port_add_phy(struct sas_port *port, struct sas_phy *phy)
 		/* If this trips, you added a phy that was already
 		 * part of a different port */
 		if (unlikely(tmp != phy)) {
-			dev_printk(KERN_ERR, &port->dev, "trying to add phy %s fails: it's already part of another port\n", phy->dev.bus_id);
+			dev_printk(KERN_ERR, &port->dev, "trying to add phy %s fails: it's already part of another port\n",
+				   dev_name(&phy->dev));
 			BUG();
 		}
 	} else {
@@ -1000,13 +1149,13 @@ void sas_port_mark_backlink(struct sas_port *port)
 		return;
 	port->is_backlink = 1;
 	res = sysfs_create_link(&port->dev.kobj, &parent->kobj,
-				parent->bus_id);
+				dev_name(parent));
 	if (res)
 		goto err;
 	return;
 err:
 	printk(KERN_ERR "%s: Cannot create port backlink, err=%d\n",
-	       __FUNCTION__, res);
+	       __func__, res);
 
 }
 EXPORT_SYMBOL(sas_port_mark_backlink);
@@ -1017,23 +1166,25 @@ EXPORT_SYMBOL(sas_port_mark_backlink);
 
 #define sas_rphy_show_simple(field, name, format_string, cast)		\
 static ssize_t								\
-show_sas_rphy_##name(struct class_device *cdev, char *buf)		\
+show_sas_rphy_##name(struct device *dev, 				\
+		     struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);	\
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);		\
 									\
 	return snprintf(buf, 20, format_string, cast rphy->field);	\
 }
 
 #define sas_rphy_simple_attr(field, name, format_string, type)		\
 	sas_rphy_show_simple(field, name, format_string, (type))	\
-static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, 			\
+static SAS_DEVICE_ATTR(rphy, name, S_IRUGO, 			\
 		show_sas_rphy_##name, NULL)
 
 #define sas_rphy_show_protocol(field, name)				\
 static ssize_t								\
-show_sas_rphy_##name(struct class_device *cdev, char *buf)		\
+show_sas_rphy_##name(struct device *dev, 				\
+		     struct device_attribute *attr, char *buf)		\
 {									\
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);	\
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);		\
 									\
 	if (!rphy->field)					\
 		return snprintf(buf, 20, "none\n");			\
@@ -1042,13 +1193,14 @@ show_sas_rphy_##name(struct class_device *cdev, char *buf)		\
 
 #define sas_rphy_protocol_attr(field, name)				\
 	sas_rphy_show_protocol(field, name)				\
-static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO,			\
+static SAS_DEVICE_ATTR(rphy, name, S_IRUGO,			\
 		show_sas_rphy_##name, NULL)
 
 static ssize_t
-show_sas_rphy_device_type(struct class_device *cdev, char *buf)
+show_sas_rphy_device_type(struct device *dev,
+			  struct device_attribute *attr, char *buf)
 {
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);
 
 	if (!rphy->identify.device_type)
 		return snprintf(buf, 20, "none\n");
@@ -1056,13 +1208,14 @@ show_sas_rphy_device_type(struct class_device *cdev, char *buf)
 			rphy->identify.device_type, buf);
 }
 
-static SAS_CLASS_DEVICE_ATTR(rphy, device_type, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, device_type, S_IRUGO,
 		show_sas_rphy_device_type, NULL);
 
 static ssize_t
-show_sas_rphy_enclosure_identifier(struct class_device *cdev, char *buf)
+show_sas_rphy_enclosure_identifier(struct device *dev,
+				   struct device_attribute *attr, char *buf)
 {
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);
 	struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
 	struct sas_internal *i = to_sas_internal(shost->transportt);
@@ -1082,13 +1235,14 @@ show_sas_rphy_enclosure_identifier(struct class_device *cdev, char *buf)
 	return sprintf(buf, "0x%llx\n", (unsigned long long)identifier);
 }
 
-static SAS_CLASS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO,
 		show_sas_rphy_enclosure_identifier, NULL);
 
 static ssize_t
-show_sas_rphy_bay_identifier(struct class_device *cdev, char *buf)
+show_sas_rphy_bay_identifier(struct device *dev,
+			     struct device_attribute *attr, char *buf)
 {
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);
 	struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
 	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
 	struct sas_internal *i = to_sas_internal(shost->transportt);
@@ -1103,7 +1257,7 @@ show_sas_rphy_bay_identifier(struct class_device *cdev, char *buf)
 	return sprintf(buf, "%d\n", val);
 }
 
-static SAS_CLASS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
+static SAS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
 		show_sas_rphy_bay_identifier, NULL);
 
 sas_rphy_protocol_attr(identify.initiator_port_protocols,
@@ -1119,15 +1273,10 @@ sas_rphy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8);
 int sas_read_port_mode_page(struct scsi_device *sdev)
 {
 	char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata;
-	struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target);
-	struct sas_end_device *rdev;
+	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
 	struct scsi_mode_data mode_data;
 	int res, error;
 
-	BUG_ON(rphy->identify.device_type != SAS_END_DEVICE);
-
-	rdev = rphy_to_end_device(rphy);
-
 	if (!buffer)
 		return -ENOMEM;
 
@@ -1161,9 +1310,10 @@ static DECLARE_TRANSPORT_CLASS(sas_end_dev_class,
 
 #define sas_end_dev_show_simple(field, name, format_string, cast)	\
 static ssize_t								\
-show_sas_end_dev_##name(struct class_device *cdev, char *buf)		\
+show_sas_end_dev_##name(struct device *dev, 				\
+			struct device_attribute *attr, char *buf)	\
 {									\
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);		\
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);		\
 	struct sas_end_device *rdev = rphy_to_end_device(rphy);		\
 									\
 	return snprintf(buf, 20, format_string, cast rdev->field);	\
@@ -1171,7 +1321,7 @@ show_sas_end_dev_##name(struct class_device *cdev, char *buf)		\
 
 #define sas_end_dev_simple_attr(field, name, format_string, type)	\
 	sas_end_dev_show_simple(field, name, format_string, (type))	\
-static SAS_CLASS_DEVICE_ATTR(end_dev, name, S_IRUGO, 			\
+static SAS_DEVICE_ATTR(end_dev, name, S_IRUGO, 			\
 		show_sas_end_dev_##name, NULL)
 
 sas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d\n", int);
@@ -1179,15 +1329,20 @@ sas_end_dev_simple_attr(I_T_nexus_loss_timeout, I_T_nexus_loss_timeout,
 			"%d\n", int);
 sas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout,
 			"%d\n", int);
+sas_end_dev_simple_attr(tlr_supported, tlr_supported,
+			"%d\n", int);
+sas_end_dev_simple_attr(tlr_enabled, tlr_enabled,
+			"%d\n", int);
 
 static DECLARE_TRANSPORT_CLASS(sas_expander_class,
 			       "sas_expander", NULL, NULL, NULL);
 
 #define sas_expander_show_simple(field, name, format_string, cast)	\
 static ssize_t								\
-show_sas_expander_##name(struct class_device *cdev, char *buf)		\
+show_sas_expander_##name(struct device *dev, 				\
+			 struct device_attribute *attr, char *buf)	\
 {									\
-	struct sas_rphy *rphy = transport_class_to_rphy(cdev);		\
+	struct sas_rphy *rphy = transport_class_to_rphy(dev);		\
 	struct sas_expander_device *edev = rphy_to_expander_device(rphy); \
 									\
 	return snprintf(buf, 20, format_string, cast edev->field);	\
@@ -1195,7 +1350,7 @@ show_sas_expander_##name(struct class_device *cdev, char *buf)		\
 
 #define sas_expander_simple_attr(field, name, format_string, type)	\
 	sas_expander_show_simple(field, name, format_string, (type))	\
-static SAS_CLASS_DEVICE_ATTR(expander, name, S_IRUGO, 			\
+static SAS_DEVICE_ATTR(expander, name, S_IRUGO, 			\
 		show_sas_expander_##name, NULL)
 
 sas_expander_simple_attr(vendor_id, vendor_id, "%s\n", char *);
@@ -1282,6 +1437,9 @@ static void sas_expander_release(struct device *dev)
 	struct sas_rphy *rphy = dev_to_rphy(dev);
 	struct sas_expander_device *edev = rphy_to_expander_device(rphy);
 
+	if (rphy->q)
+		blk_cleanup_queue(rphy->q);
+
 	put_device(dev->parent);
 	kfree(edev);
 }
@@ -1291,6 +1449,9 @@ static void sas_end_device_release(struct device *dev)
 	struct sas_rphy *rphy = dev_to_rphy(dev);
 	struct sas_end_device *edev = rphy_to_end_device(rphy);
 
+	if (rphy->q)
+		blk_cleanup_queue(rphy->q);
+
 	put_device(dev->parent);
 	kfree(edev);
 }
@@ -1331,11 +1492,12 @@ struct sas_rphy *sas_end_device_alloc(struct sas_port *parent)
 	rdev->rphy.dev.release = sas_end_device_release;
 	if (scsi_is_sas_expander_device(parent->dev.parent)) {
 		struct sas_rphy *rphy = dev_to_rphy(parent->dev.parent);
-		sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d:%d",
-			shost->host_no, rphy->scsi_target_id, parent->port_identifier);
+		dev_set_name(&rdev->rphy.dev, "end_device-%d:%d:%d",
+			     shost->host_no, rphy->scsi_target_id,
+			     parent->port_identifier);
 	} else
-		sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d",
-			shost->host_no, parent->port_identifier);
+		dev_set_name(&rdev->rphy.dev, "end_device-%d:%d",
+			     shost->host_no, parent->port_identifier);
 	rdev->rphy.identify.device_type = SAS_END_DEVICE;
 	sas_rphy_initialize(&rdev->rphy);
 	transport_setup_device(&rdev->rphy.dev);
@@ -1375,8 +1537,8 @@ struct sas_rphy *sas_expander_alloc(struct sas_port *parent,
 	mutex_lock(&sas_host->lock);
 	rdev->rphy.scsi_target_id = sas_host->next_expander_id++;
 	mutex_unlock(&sas_host->lock);
-	sprintf(rdev->rphy.dev.bus_id, "expander-%d:%d",
-		shost->host_no, rdev->rphy.scsi_target_id);
+	dev_set_name(&rdev->rphy.dev, "expander-%d:%d",
+		     shost->host_no, rdev->rphy.scsi_target_id);
 	rdev->rphy.identify.device_type = type;
 	sas_rphy_initialize(&rdev->rphy);
 	transport_setup_device(&rdev->rphy.dev);
@@ -1409,7 +1571,7 @@ int sas_rphy_add(struct sas_rphy *rphy)
 	transport_add_device(&rphy->dev);
 	transport_configure_device(&rphy->dev);
 	if (sas_bsg_initialize(shost, rphy))
-		printk("fail to a bsg device %s\n", rphy->dev.bus_id);
+		printk("fail to a bsg device %s\n", dev_name(&rphy->dev));
 
 
 	mutex_lock(&sas_host->lock);
@@ -1424,8 +1586,14 @@ int sas_rphy_add(struct sas_rphy *rphy)
 
 	if (identify->device_type == SAS_END_DEVICE &&
 	    rphy->scsi_target_id != -1) {
-		scsi_scan_target(&rphy->dev, 0,
-				rphy->scsi_target_id, SCAN_WILD_CARD, 0);
+		int lun;
+
+		if (identify->target_port_protocols & SAS_PROTOCOL_SSP)
+			lun = SCAN_WILD_CARD;
+		else
+			lun = 0;
+
+		scsi_scan_target(&rphy->dev, 0, rphy->scsi_target_id, lun, 0);
 	}
 
 	return 0;
@@ -1440,7 +1608,7 @@ EXPORT_SYMBOL(sas_rphy_add);
  *
  * Note:
  *   This function must only be called on a remote
- *   PHY that has not sucessfully been added using
+ *   PHY that has not successfully been added using
  *   sas_rphy_add() (or has been sas_rphy_remove()'d)
  */
 void sas_rphy_free(struct sas_rphy *rphy)
@@ -1453,8 +1621,6 @@ void sas_rphy_free(struct sas_rphy *rphy)
 	list_del(&rphy->list);
 	mutex_unlock(&sas_host->lock);
 
-	sas_bsg_remove(shost, rphy);
-
 	transport_destroy_device(dev);
 
 	put_device(dev);
@@ -1476,6 +1642,20 @@ sas_rphy_delete(struct sas_rphy *rphy)
 EXPORT_SYMBOL(sas_rphy_delete);
 
 /**
+ * sas_rphy_unlink  -  unlink SAS remote PHY
+ * @rphy:	SAS remote phy to unlink from its parent port
+ *
+ * Removes port reference to an rphy
+ */
+void sas_rphy_unlink(struct sas_rphy *rphy)
+{
+	struct sas_port *parent = dev_to_sas_port(rphy->dev.parent);
+
+	parent->rphy = NULL;
+}
+EXPORT_SYMBOL(sas_rphy_unlink);
+
+/**
  * sas_rphy_remove  -  remove SAS remote PHY
  * @rphy:	SAS remote phy to remove
  *
@@ -1485,7 +1665,6 @@ void
 sas_rphy_remove(struct sas_rphy *rphy)
 {
 	struct device *dev = &rphy->dev;
-	struct sas_port *parent = dev_to_sas_port(dev->parent);
 
 	switch (rphy->identify.device_type) {
 	case SAS_END_DEVICE:
@@ -1499,10 +1678,10 @@ sas_rphy_remove(struct sas_rphy *rphy)
 		break;
 	}
 
+	sas_rphy_unlink(rphy);
+	sas_bsg_remove(NULL, rphy);
 	transport_remove_device(dev);
 	device_del(dev);
-
-	parent->rphy = NULL;
 }
 EXPORT_SYMBOL(sas_rphy_remove);
 
@@ -1554,14 +1733,14 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel,
  */
 
 #define SETUP_TEMPLATE(attrb, field, perm, test)			\
-	i->private_##attrb[count] = class_device_attr_##field;		\
+	i->private_##attrb[count] = dev_attr_##field;		\
 	i->private_##attrb[count].attr.mode = perm;			\
 	i->attrb[count] = &i->private_##attrb[count];			\
 	if (test)							\
 		count++
 
 #define SETUP_TEMPLATE_RW(attrb, field, perm, test, ro_test, ro_perm)	\
-	i->private_##attrb[count] = class_device_attr_##field;		\
+	i->private_##attrb[count] = dev_attr_##field;		\
 	i->private_##attrb[count].attr.mode = perm;			\
 	if (ro_test) {							\
 		i->private_##attrb[count].attr.mode = ro_perm;		\
@@ -1656,10 +1835,6 @@ sas_attach_transport(struct sas_function_template *ft)
 	i->f = ft;
 
 	count = 0;
-	SETUP_PORT_ATTRIBUTE(num_phys);
-	i->host_attrs[count] = NULL;
-
-	count = 0;
 	SETUP_PHY_ATTRIBUTE(initiator_port_protocols);
 	SETUP_PHY_ATTRIBUTE(target_port_protocols);
 	SETUP_PHY_ATTRIBUTE(device_type);
@@ -1701,6 +1876,8 @@ sas_attach_transport(struct sas_function_template *ft)
 	SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning);
 	SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout);
 	SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout);
+	SETUP_END_DEV_ATTRIBUTE(end_dev_tlr_supported);
+	SETUP_END_DEV_ATTRIBUTE(end_dev_tlr_enabled);
 	i->end_dev_attrs[count] = NULL;
 
 	count = 0;