Commit 745a7a25 authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by James Bottomley
Browse files

[SCSI] hpsa: Add transport_mode host attribute in /sys 



Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent a9a3a273

Documentation/scsi/hpsa.txt

+5 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ HPSA specific entries in /sys 


  /sys/class/scsi_host/host*/rescan

  /sys/class/scsi_host/host*/firmware_revision

  /sys/class/scsi_host/host*/transport_mode



  the host "rescan" attribute is a write only attribute.  Writing to this

  attribute will cause the driver to scan for new, changed, or removed devices
@@ -61,6 +62,10 @@ HPSA specific entries in /sys 
	root@host:/sys/class/scsi_host/host4# cat firmware_revision

	7.14



  The transport_mode indicates whether the controller is in "performant"

  or "simple" mode.  This is controlled by the "hpsa_simple_mode" module

  parameter.



  HPSA specific disk attributes:

  ------------------------------

drivers/scsi/hpsa.c

+17 −1
Original line number Diff line number Diff line
@@ -161,6 +161,8 @@ static ssize_t host_show_firmware_revision(struct device *dev, 
	     struct device_attribute *attr, char *buf);

static ssize_t host_show_commands_outstanding(struct device *dev,

	     struct device_attribute *attr, char *buf);

static ssize_t host_show_transport_mode(struct device *dev,

	struct device_attribute *attr, char *buf);

static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);

static ssize_t host_store_rescan(struct device *dev,

	 struct device_attribute *attr, const char *buf, size_t count);
@@ -192,6 +194,8 @@ static DEVICE_ATTR(firmware_revision, S_IRUGO, 
	host_show_firmware_revision, NULL);

static DEVICE_ATTR(commands_outstanding, S_IRUGO,

	host_show_commands_outstanding, NULL);

static DEVICE_ATTR(transport_mode, S_IRUGO,

	host_show_transport_mode, NULL);



static struct device_attribute *hpsa_sdev_attrs[] = {

	&dev_attr_raid_level,
@@ -204,6 +208,7 @@ static struct device_attribute *hpsa_shost_attrs[] = { 
	&dev_attr_rescan,

	&dev_attr_firmware_revision,

	&dev_attr_commands_outstanding,

	&dev_attr_transport_mode,

	NULL,

};
@@ -313,6 +318,18 @@ static ssize_t host_show_commands_outstanding(struct device *dev, 
	return snprintf(buf, 20, "%d\n", h->commands_outstanding);

}



static ssize_t host_show_transport_mode(struct device *dev,

	struct device_attribute *attr, char *buf)

{

	struct ctlr_info *h;

	struct Scsi_Host *shost = class_to_shost(dev);



	h = shost_to_hba(shost);

	return snprintf(buf, 20, "%s\n",

		h->transMethod == CFGTBL_Trans_Performant ?

			"performant" : "simple");

}



/* Enqueuing and dequeuing functions for cmdlists. */

static inline void addQ(struct list_head *list, struct CommandList *c)

{
@@ -3768,7 +3785,6 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev, 
	h->pdev = pdev;

	h->busy_initializing = 1;

	h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;

	printk(KERN_WARNING "hpsa_simple_mode is %d\n", hpsa_simple_mode);

	INIT_LIST_HEAD(&h->cmpQ);

	INIT_LIST_HEAD(&h->reqQ);

	spin_lock_init(&h->lock);