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

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 2011-02-15 15:32:58 -06:00 committed by James Bottomley
parent a9a3a2739a
commit 745a7a25bc
2 changed files with 22 additions and 1 deletions
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5
Documentation/scsi/hpsa.txt
View File

@ -45,6 +45,7 @@ HPSA specific entries in /sys
/sys/class/scsi_host/host*/rescan /sys/class/scsi_host/host*/rescan
/sys/class/scsi_host/host*/firmware_revision /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 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 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 root@host:/sys/class/scsi_host/host4# cat firmware_revision
7.14 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: HPSA specific disk attributes:
------------------------------ ------------------------------

18
drivers/scsi/hpsa.c
View File

@ -161,6 +161,8 @@ static ssize_t host_show_firmware_revision(struct device *dev,
struct device_attribute *attr, char *buf); struct device_attribute *attr, char *buf);
static ssize_t host_show_commands_outstanding(struct device *dev, static ssize_t host_show_commands_outstanding(struct device *dev,
struct device_attribute *attr, char *buf); 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 void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
static ssize_t host_store_rescan(struct device *dev, static ssize_t host_store_rescan(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count); 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); host_show_firmware_revision, NULL);
static DEVICE_ATTR(commands_outstanding, S_IRUGO, static DEVICE_ATTR(commands_outstanding, S_IRUGO,
host_show_commands_outstanding, NULL); host_show_commands_outstanding, NULL);
static DEVICE_ATTR(transport_mode, S_IRUGO,
host_show_transport_mode, NULL);
static struct device_attribute *hpsa_sdev_attrs[] = { static struct device_attribute *hpsa_sdev_attrs[] = {
&dev_attr_raid_level, &dev_attr_raid_level,
@ -204,6 +208,7 @@ static struct device_attribute *hpsa_shost_attrs[] = {
&dev_attr_rescan, &dev_attr_rescan,
&dev_attr_firmware_revision, &dev_attr_firmware_revision,
&dev_attr_commands_outstanding, &dev_attr_commands_outstanding,
&dev_attr_transport_mode,
NULL, NULL,
}; };
@ -313,6 +318,18 @@ static ssize_t host_show_commands_outstanding(struct device *dev,
return snprintf(buf, 20, "%d\n", h->commands_outstanding); 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. */ /* Enqueuing and dequeuing functions for cmdlists. */
static inline void addQ(struct list_head *list, struct CommandList *c) 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->pdev = pdev;
h->busy_initializing = 1; h->busy_initializing = 1;
h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; 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->cmpQ);
INIT_LIST_HEAD(&h->reqQ); INIT_LIST_HEAD(&h->reqQ);
spin_lock_init(&h->lock); spin_lock_init(&h->lock);