uacce->qf_pg_num[UACCE_QFRT_DUS] << PAGE_SHIFT);
}
+static ssize_t isolate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct uacce_device *uacce = to_uacce_device(dev);
+
+ return sysfs_emit(buf, "%d\n", uacce->ops->get_isolate_state(uacce));
+}
+
+static ssize_t isolate_strategy_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct uacce_device *uacce = to_uacce_device(dev);
+ u32 val;
+
+ val = uacce->ops->isolate_err_threshold_read(uacce);
+
+ return sysfs_emit(buf, "%u\n", val);
+}
+
+static ssize_t isolate_strategy_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct uacce_device *uacce = to_uacce_device(dev);
+ unsigned long val;
+ int ret;
+
+ if (kstrtoul(buf, 0, &val) < 0)
+ return -EINVAL;
+
+ if (val > UACCE_MAX_ERR_THRESHOLD)
+ return -EINVAL;
+
+ ret = uacce->ops->isolate_err_threshold_write(uacce, val);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
static DEVICE_ATTR_RO(api);
static DEVICE_ATTR_RO(flags);
static DEVICE_ATTR_RO(available_instances);
static DEVICE_ATTR_RO(algorithms);
static DEVICE_ATTR_RO(region_mmio_size);
static DEVICE_ATTR_RO(region_dus_size);
+static DEVICE_ATTR_RO(isolate);
+static DEVICE_ATTR_RW(isolate_strategy);
static struct attribute *uacce_dev_attrs[] = {
&dev_attr_api.attr,
&dev_attr_algorithms.attr,
&dev_attr_region_mmio_size.attr,
&dev_attr_region_dus_size.attr,
+ &dev_attr_isolate.attr,
+ &dev_attr_isolate_strategy.attr,
NULL,
};
(!uacce->qf_pg_num[UACCE_QFRT_DUS])))
return 0;
+ if (attr == &dev_attr_isolate_strategy.attr &&
+ (!uacce->ops->isolate_err_threshold_read &&
+ !uacce->ops->isolate_err_threshold_write))
+ return 0;
+
+ if (attr == &dev_attr_isolate.attr && !uacce->ops->get_isolate_state)
+ return 0;
+
return attr->mode;
}
#define UACCE_NAME "uacce"
#define UACCE_MAX_REGION 2
#define UACCE_MAX_NAME_SIZE 64
+#define UACCE_MAX_ERR_THRESHOLD 65535
struct uacce_queue;
struct uacce_device;
* @is_q_updated: check whether the task is finished
* @mmap: mmap addresses of queue to user space
* @ioctl: ioctl for user space users of the queue
+ * @get_isolate_state: get the device state after set the isolate strategy
+ * @isolate_err_threshold_write: stored the isolate error threshold to the device
+ * @isolate_err_threshold_read: read the isolate error threshold value from the device
*/
struct uacce_ops {
int (*get_available_instances)(struct uacce_device *uacce);
struct uacce_qfile_region *qfr);
long (*ioctl)(struct uacce_queue *q, unsigned int cmd,
unsigned long arg);
+ enum uacce_dev_state (*get_isolate_state)(struct uacce_device *uacce);
+ int (*isolate_err_threshold_write)(struct uacce_device *uacce, u32 num);
+ u32 (*isolate_err_threshold_read)(struct uacce_device *uacce);
};
/**
const struct uacce_ops *ops;
};
+enum uacce_dev_state {
+ UACCE_DEV_NORMAL,
+ UACCE_DEV_ISOLATE,
+};
+
enum uacce_q_state {
UACCE_Q_ZOMBIE = 0,
UACCE_Q_INIT,