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| author |   Hannes Reinecke <hare@suse.de> | 2021-04-16 13:46:21 +0200 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2021-04-21 19:13:15 +0200 |
| commit | 74c22990f08c9f922f775939a4ebc814ca2c49eb (patch) | |
| tree | c226115a5d6ec360d6cb1d4427054ad0eadab1c9 /drivers/nvme/host/core.c | |
| parent | nvme: sanitize KATO setting (diff) | |
| download | linux-dev-74c22990f08c9f922f775939a4ebc814ca2c49eb.tar.xz linux-dev-74c22990f08c9f922f775939a4ebc814ca2c49eb.zip | |
nvme: add 'kato' sysfs attribute
Add a 'kato' controller sysfs attribute to display the current
keep-alive timeout value (if any). This allows userspace to identify
persistent discovery controllers, as these will have a non-zero
KATO value.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 0cb097cd6a8e..d6fd44774e9f 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3172,6 +3172,7 @@ nvme_show_int_function(cntlid); nvme_show_int_function(numa_node); nvme_show_int_function(queue_count); nvme_show_int_function(sqsize); +nvme_show_int_function(kato); static ssize_t nvme_sysfs_delete(struct device *dev, struct device_attribute *attr, const char *buf, @@ -3369,6 +3370,7 @@ static struct attribute *nvme_dev_attrs[] = { &dev_attr_ctrl_loss_tmo.attr, &dev_attr_reconnect_delay.attr, &dev_attr_fast_io_fail_tmo.attr, + &dev_attr_kato.attr, NULL }; |