Commit f963d270 authored by Joe Handzik's avatar Joe Handzik Committed by Jens Axboe
Browse files

cciss: add transport mode attribute to sys 



Signed-off-by: default avatarJoseph Handzik <joseph.t.handzik@beardog.cce.hp.com>
Acked-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent 13049537

Documentation/ABI/testing/sysfs-bus-pci-devices-cciss

+7 −0
Original line number Diff line number Diff line
@@ -71,3 +71,10 @@ Description: Value of 1 indicates the controller can honor the reset_devices 
		a dump device, as kdump requires resetting the device in order

		to work reliably.



Where:		/sys/bus/pci/devices/<dev>/ccissX/transport_mode

Date:		July 2011

Kernel Version:	3.0

Contact:	iss_storagedev@hp.com

Description:	Value of "simple" indicates that the controller has been placed

		in "simple mode". Value of "performant" indicates that the

		controller has been placed in "performant mode".

drivers/block/cciss.c

+13 −0
Original line number Diff line number Diff line
@@ -641,6 +641,18 @@ static ssize_t host_store_rescan(struct device *dev, 
}

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



static ssize_t host_show_transport_mode(struct device *dev,

				 struct device_attribute *attr,

				 char *buf)

{

	struct ctlr_info *h = to_hba(dev);



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

		h->transMethod & CFGTBL_Trans_Performant ?

			"performant" : "simple");

}

static DEVICE_ATTR(transport_mode, S_IRUGO, host_show_transport_mode, NULL);



static ssize_t dev_show_unique_id(struct device *dev,

				 struct device_attribute *attr,

				 char *buf)
@@ -813,6 +825,7 @@ static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL); 
static struct attribute *cciss_host_attrs[] = {

	&dev_attr_rescan.attr,

	&dev_attr_resettable.attr,

	&dev_attr_transport_mode.attr,

	NULL

};