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Commit 94a13649 authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by James Bottomley
Browse files

[SCSI] hpsa: Add a per controller commands_outstanding entry 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 60d3f5b0

drivers/scsi/hpsa.c

+14 −0
Original line number Diff line number Diff line
@@ -159,6 +159,8 @@ 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 ssize_t host_show_commands_outstanding(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);
@@ -188,6 +190,8 @@ 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 DEVICE_ATTR(commands_outstanding, S_IRUGO,

	host_show_commands_outstanding, NULL);



static struct device_attribute *hpsa_sdev_attrs[] = {

	&dev_attr_raid_level,
@@ -199,6 +203,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { 
static struct device_attribute *hpsa_shost_attrs[] = {

	&dev_attr_rescan,

	&dev_attr_firmware_revision,

	&dev_attr_commands_outstanding,

	NULL,

};
@@ -299,6 +304,15 @@ static ssize_t host_show_firmware_revision(struct device *dev, 
		fwrev[0], fwrev[1], fwrev[2], fwrev[3]);

}



static ssize_t host_show_commands_outstanding(struct device *dev,

	     struct device_attribute *attr, char *buf)

{

	struct Scsi_Host *shost = class_to_shost(dev);

	struct ctlr_info *h = shost_to_hba(shost);



	return snprintf(buf, 20, "%d\n", h->commands_outstanding);

}



/* Enqueuing and dequeuing functions for cmdlists. */

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

{