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nvme: Add ctrl attributes for queue_count and sqsize

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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>
This commit is contained in:
James Smart 2019-09-24 14:22:08 -07:00 committed by Sagi Grimberg
parent 65e68edce0
commit 2b1ff255d2
1 changed files with 4 additions and 0 deletions
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4
drivers/nvme/host/core.c
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@ -3135,6 +3135,8 @@ static DEVICE_ATTR(field, S_IRUGO, field##_show, NULL);
nvme_show_int_function(cntlid);
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,
struct device_attribute *attr, const char *buf,
@ -3215,6 +3217,8 @@ static struct attribute *nvme_dev_attrs[] = {
&dev_attr_address.attr,
&dev_attr_state.attr,
&dev_attr_numa_node.attr,
&dev_attr_queue_count.attr,
&dev_attr_sqsize.attr,
NULL
};