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[SCSI] hpsa: Add a per controller commands_outstanding entry in /sys

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Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2011-01-06 14:48:39 -06:00 committed by James Bottomley
parent 60d3f5b068
commit 94a136495a
1 changed files with 14 additions and 0 deletions
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14
drivers/scsi/hpsa.c
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@ -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)
{