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

cciss: add transport mode attribute to sys

parent 13049537
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+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".
+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
};