s390/cio: add channel ID sysfs attribute
Add new attributes "chid" and "chid_external" to the channel-path sysfs directory. These attributes contain information related to the channel-ID of the channel-path. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
parent
aca9120977
commit
ba54229db6
|
@ -352,12 +352,48 @@ static ssize_t chp_shared_show(struct device *dev,
|
|||
|
||||
static DEVICE_ATTR(shared, 0444, chp_shared_show, NULL);
|
||||
|
||||
static ssize_t chp_chid_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct channel_path *chp = to_channelpath(dev);
|
||||
ssize_t rc;
|
||||
|
||||
mutex_lock(&chp->lock);
|
||||
if (chp->desc_fmt1.flags & 0x10)
|
||||
rc = sprintf(buf, "%04x\n", chp->desc_fmt1.chid);
|
||||
else
|
||||
rc = 0;
|
||||
mutex_unlock(&chp->lock);
|
||||
|
||||
return rc;
|
||||
}
|
||||
static DEVICE_ATTR(chid, 0444, chp_chid_show, NULL);
|
||||
|
||||
static ssize_t chp_chid_external_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct channel_path *chp = to_channelpath(dev);
|
||||
ssize_t rc;
|
||||
|
||||
mutex_lock(&chp->lock);
|
||||
if (chp->desc_fmt1.flags & 0x10)
|
||||
rc = sprintf(buf, "%x\n", chp->desc_fmt1.flags & 0x8 ? 1 : 0);
|
||||
else
|
||||
rc = 0;
|
||||
mutex_unlock(&chp->lock);
|
||||
|
||||
return rc;
|
||||
}
|
||||
static DEVICE_ATTR(chid_external, 0444, chp_chid_external_show, NULL);
|
||||
|
||||
static struct attribute *chp_attrs[] = {
|
||||
&dev_attr_status.attr,
|
||||
&dev_attr_configure.attr,
|
||||
&dev_attr_type.attr,
|
||||
&dev_attr_cmg.attr,
|
||||
&dev_attr_shared.attr,
|
||||
&dev_attr_chid.attr,
|
||||
&dev_attr_chid_external.attr,
|
||||
NULL,
|
||||
};
|
||||
static struct attribute_group chp_attr_group = {
|
||||
|
|
|
@ -43,7 +43,9 @@ struct channel_path_desc_fmt1 {
|
|||
u8 chpid;
|
||||
u32:24;
|
||||
u8 chpp;
|
||||
u32 unused[3];
|
||||
u32 unused[2];
|
||||
u16 chid;
|
||||
u32:16;
|
||||
u16 mdc;
|
||||
u16:13;
|
||||
u8 r:1;
|
||||
|
|
Loading…
Reference in a new issue