diff options
| author | Bryan O'Sullivan <bos@pathscale.com> | 2006-09-28 08:59:59 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-09-28 11:16:25 -0700 |
| commit | 9929b0fb0f35f54371e9364bab809bcd753f9d3a (patch) | |
| tree | 1722f36becc47589bb7b0d98ad00c10dece2a95e /drivers/infiniband/hw/ipath/ipath_sysfs.c | |
| parent | 221e31985b490309eb9ae33ac815deae3b5aa021 (diff) | |
IB/ipath: Driver support for userspace sharing of HW contexts
This allows multiple userspace processes to share a single hardware
context in a master/slave arrangement. It is backwards binary compatible
with existing userspace.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_sysfs.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_sysfs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c index e299148c4b6..b48ebf62e5d 100644 --- a/drivers/infiniband/hw/ipath/ipath_sysfs.c +++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c @@ -297,6 +297,16 @@ static ssize_t show_nguid(struct device *dev, return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid); } +static ssize_t show_nports(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ipath_devdata *dd = dev_get_drvdata(dev); + + /* Return the number of user ports available. */ + return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1); +} + static ssize_t show_serial(struct device *dev, struct device_attribute *attr, char *buf) @@ -608,6 +618,7 @@ static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid); static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu); static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled); static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL); +static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL); static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset); static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); @@ -623,6 +634,7 @@ static struct attribute *dev_attributes[] = { &dev_attr_mlid.attr, &dev_attr_mtu.attr, &dev_attr_nguid.attr, + &dev_attr_nports.attr, &dev_attr_serial.attr, &dev_attr_status.attr, &dev_attr_status_str.attr, |