Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d28ce020 authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by James Bottomley
Browse files

[SCSI] hpsa: expose controller firmware revision via /sys. 



Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 992ebcf1

Documentation/scsi/hpsa.txt

+7 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ HPSA specific entries in /sys 
  ------------------------------



  /sys/class/scsi_host/host*/rescan

  /sys/class/scsi_host/host*/firmware_revision



  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
@@ -48,6 +49,12 @@ HPSA specific entries in /sys 
  normally have to use this.  It may be useful when hot plugging devices like

  tape drives, or entire storage boxes containing pre-configured logical drives.



  The "firmware_revision" attribute contains the firmware version of the Smart Array.

  For example:



	root@host:/sys/class/scsi_host/host4# cat firmware_revision

	7.14



  HPSA specific disk attributes:

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

drivers/scsi/hpsa.c

+20 −0
Original line number Diff line number Diff line
@@ -148,6 +148,8 @@ static ssize_t lunid_show(struct device *dev, 
	struct device_attribute *attr, char *buf);

static ssize_t unique_id_show(struct device *dev,

	struct device_attribute *attr, char *buf);

static ssize_t host_show_firmware_revision(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);
@@ -165,6 +167,8 @@ static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); 
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);

static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);

static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);

static DEVICE_ATTR(firmware_revision, S_IRUGO,

	host_show_firmware_revision, NULL);



static struct device_attribute *hpsa_sdev_attrs[] = {

	&dev_attr_raid_level,
@@ -175,6 +179,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { 


static struct device_attribute *hpsa_shost_attrs[] = {

	&dev_attr_rescan,

	&dev_attr_firmware_revision,

	NULL,

};
@@ -260,6 +265,21 @@ static ssize_t host_store_rescan(struct device *dev, 
	return count;

}



static ssize_t host_show_firmware_revision(struct device *dev,

	     struct device_attribute *attr, char *buf)

{

	struct ctlr_info *h;

	struct Scsi_Host *shost = class_to_shost(dev);

	unsigned char *fwrev;



	h = shost_to_hba(shost);

	if (!h->hba_inquiry_data)

		return 0;

	fwrev = &h->hba_inquiry_data[32];

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

		fwrev[0], fwrev[1], fwrev[2], fwrev[3]);

}



/* Enqueuing and dequeuing functions for cmdlists. */

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

{