diff options
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-dma-idxd | 6 | ||||
| -rw-r--r-- | drivers/dma/idxd/sysfs.c | 11 |
2 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index f4be46cc6cb6..b5bebf642db6 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -1,3 +1,9 @@ +What: sys/bus/dsa/devices/dsa<m>/version +Date: Apr 15, 2020 +KernelVersion: 5.8.0 +Contact: dmaengine@vger.kernel.org +Description: The hardware version number. + What: sys/bus/dsa/devices/dsa<m>/cdev_major Date: Oct 25, 2019 KernelVersion: 5.6.0 diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c index 3999827970ab..052dae5d6ddd 100644 --- a/drivers/dma/idxd/sysfs.c +++ b/drivers/dma/idxd/sysfs.c @@ -1092,6 +1092,16 @@ static const struct attribute_group *idxd_wq_attribute_groups[] = { }; /* IDXD device attribs */ +static ssize_t version_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct idxd_device *idxd = + container_of(dev, struct idxd_device, conf_dev); + + return sprintf(buf, "%#x\n", idxd->hw.version); +} +static DEVICE_ATTR_RO(version); + static ssize_t max_work_queues_size_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1313,6 +1323,7 @@ static ssize_t cdev_major_show(struct device *dev, static DEVICE_ATTR_RO(cdev_major); static struct attribute *idxd_device_attributes[] = { + &dev_attr_version.attr, &dev_attr_max_groups.attr, &dev_attr_max_work_queues.attr, &dev_attr_max_work_queues_size.attr, |