[PATCH 2/2] nvme: add 'kato' sysfs attribute
From: Hannes Reinecke <hare@suse.de>
Date: 2021-03-11 10:38:05
Subsystem:
nvm express driver, the rest · Maintainers:
Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Linus Torvalds
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> --- drivers/nvme/host/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index b56903982b27..206e6f883ca8 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c@@ -3540,6 +3540,7 @@ 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,
@@ -3706,6 +3707,7 @@ static struct attribute *nvme_dev_attrs[] = { &dev_attr_hostid.attr, &dev_attr_ctrl_loss_tmo.attr, &dev_attr_reconnect_delay.attr, + &dev_attr_kato.attr, NULL };
--
2.29.2
_______________________________________________
Linux-nvme mailing list
Linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme