nvme: Add ctrl attributes for queue_count and sqsize (2b1ff255) · Commits · 戴 / test

Current controller interrogation requires a lot of guesswork on how many io queues were created and what the io sq size is. The numbers are dependent upon core/fabric defaults, connect arguments, and target responses. Add sysfs attributes for queue_count and sqsize. Signed-off-by:

James Smart <jsmart2021@gmail.com> Reviewed-by:

Hannes Reinecke <hare@suse.com> Signed-off-by:

Sagi Grimberg <sagi@grimberg.me>

drivers/nvme/host/core.c

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -3135,6 +3135,8 @@ static DEVICE_ATTR(field, S_IRUGO, field##_show, NULL);

	nvme_show_int_function(cntlid);		nvme_show_int_function(cntlid);
	nvme_show_int_function(numa_node);		nvme_show_int_function(numa_node);
			nvme_show_int_function(queue_count);
			nvme_show_int_function(sqsize);

	static ssize_t nvme_sysfs_delete(struct device *dev,		static ssize_t nvme_sysfs_delete(struct device *dev,
	struct device_attribute attr, const char buf,		struct device_attribute attr, const char buf,
	@@ -3215,6 +3217,8 @@ static struct attribute *nvme_dev_attrs[] = {
	&dev_attr_address.attr,		&dev_attr_address.attr,
	&dev_attr_state.attr,		&dev_attr_state.attr,
	&dev_attr_numa_node.attr,		&dev_attr_numa_node.attr,
			&dev_attr_queue_count.attr,
			&dev_attr_sqsize.attr,
	NULL		NULL
	};		};

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