110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/*
|
|
* Copyright IBM Corp. 2012
|
|
*
|
|
* Author(s):
|
|
* Jan Glauber <jang@linux.vnet.ibm.com>
|
|
*/
|
|
|
|
#define KMSG_COMPONENT "zpci"
|
|
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/stat.h>
|
|
#include <linux/pci.h>
|
|
|
|
#define zpci_attr(name, fmt, member) \
|
|
static ssize_t name##_show(struct device *dev, \
|
|
struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); \
|
|
\
|
|
return sprintf(buf, fmt, zdev->member); \
|
|
} \
|
|
static DEVICE_ATTR_RO(name)
|
|
|
|
zpci_attr(function_id, "0x%08x\n", fid);
|
|
zpci_attr(function_handle, "0x%08x\n", fh);
|
|
zpci_attr(pchid, "0x%04x\n", pchid);
|
|
zpci_attr(pfgid, "0x%02x\n", pfgid);
|
|
zpci_attr(vfn, "0x%04x\n", vfn);
|
|
zpci_attr(pft, "0x%02x\n", pft);
|
|
zpci_attr(uid, "0x%x\n", uid);
|
|
zpci_attr(segment0, "0x%02x\n", pfip[0]);
|
|
zpci_attr(segment1, "0x%02x\n", pfip[1]);
|
|
zpci_attr(segment2, "0x%02x\n", pfip[2]);
|
|
zpci_attr(segment3, "0x%02x\n", pfip[3]);
|
|
|
|
static ssize_t recover_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct zpci_dev *zdev = get_zdev(pdev);
|
|
int ret;
|
|
|
|
if (!device_remove_file_self(dev, attr))
|
|
return count;
|
|
|
|
pci_stop_and_remove_bus_device(pdev);
|
|
ret = zpci_disable_device(zdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = zpci_enable_device(zdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
pci_rescan_bus(zdev->bus);
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR_WO(recover);
|
|
|
|
static ssize_t util_string_read(struct file *filp, struct kobject *kobj,
|
|
struct bin_attribute *attr, char *buf,
|
|
loff_t off, size_t count)
|
|
{
|
|
struct device *dev = kobj_to_dev(kobj);
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct zpci_dev *zdev = get_zdev(pdev);
|
|
|
|
return memory_read_from_buffer(buf, count, &off, zdev->util_str,
|
|
sizeof(zdev->util_str));
|
|
}
|
|
static BIN_ATTR_RO(util_string, CLP_UTIL_STR_LEN);
|
|
static struct bin_attribute *zpci_bin_attrs[] = {
|
|
&bin_attr_util_string,
|
|
NULL,
|
|
};
|
|
|
|
static struct attribute *zpci_dev_attrs[] = {
|
|
&dev_attr_function_id.attr,
|
|
&dev_attr_function_handle.attr,
|
|
&dev_attr_pchid.attr,
|
|
&dev_attr_pfgid.attr,
|
|
&dev_attr_pft.attr,
|
|
&dev_attr_vfn.attr,
|
|
&dev_attr_uid.attr,
|
|
&dev_attr_recover.attr,
|
|
NULL,
|
|
};
|
|
static struct attribute_group zpci_attr_group = {
|
|
.attrs = zpci_dev_attrs,
|
|
.bin_attrs = zpci_bin_attrs,
|
|
};
|
|
|
|
static struct attribute *pfip_attrs[] = {
|
|
&dev_attr_segment0.attr,
|
|
&dev_attr_segment1.attr,
|
|
&dev_attr_segment2.attr,
|
|
&dev_attr_segment3.attr,
|
|
NULL,
|
|
};
|
|
static struct attribute_group pfip_attr_group = {
|
|
.name = "pfip",
|
|
.attrs = pfip_attrs,
|
|
};
|
|
|
|
const struct attribute_group *zpci_attr_groups[] = {
|
|
&zpci_attr_group,
|
|
&pfip_attr_group,
|
|
NULL,
|
|
};
|