nvme: expose hostid via sysfs for fabrics controllers (45fb19f7) · Commits · 戴 / test

drivers/nvme/host/core.c

+13 −0

Original line number	Original line	Diff line number	Diff line
	@@ -3252,6 +3252,16 @@ static ssize_t nvme_sysfs_show_hostnqn(struct device *dev,
	}		}
	static DEVICE_ATTR(hostnqn, S_IRUGO, nvme_sysfs_show_hostnqn, NULL);		static DEVICE_ATTR(hostnqn, S_IRUGO, nvme_sysfs_show_hostnqn, NULL);

			static ssize_t nvme_sysfs_show_hostid(struct device *dev,
			struct device_attribute *attr,
			char *buf)
			{
			struct nvme_ctrl *ctrl = dev_get_drvdata(dev);

			return snprintf(buf, PAGE_SIZE, "%pU\n", &ctrl->opts->host->id);
			}
			static DEVICE_ATTR(hostid, S_IRUGO, nvme_sysfs_show_hostid, NULL);

	static ssize_t nvme_sysfs_show_address(struct device *dev,		static ssize_t nvme_sysfs_show_address(struct device *dev,
	struct device_attribute *attr,		struct device_attribute *attr,
	char *buf)		char *buf)
	@@ -3278,6 +3288,7 @@ static struct attribute *nvme_dev_attrs[] = {
	&dev_attr_queue_count.attr,		&dev_attr_queue_count.attr,
	&dev_attr_sqsize.attr,		&dev_attr_sqsize.attr,
	&dev_attr_hostnqn.attr,		&dev_attr_hostnqn.attr,
			&dev_attr_hostid.attr,
	NULL		NULL
	};		};

	@@ -3293,6 +3304,8 @@ static umode_t nvme_dev_attrs_are_visible(struct kobject *kobj,
	return 0;		return 0;
	if (a == &dev_attr_hostnqn.attr && !ctrl->opts)		if (a == &dev_attr_hostnqn.attr && !ctrl->opts)
	return 0;		return 0;
			if (a == &dev_attr_hostid.attr && !ctrl->opts)
			return 0;

	return a->mode;		return a->mode;
	}		}