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RDMA/rtrs-clt: New sysfs attribute to print the latency of each path

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It shows the latest latency that the client checked when sending the
heart-beat.

Link: https://lore.kernel.org/r/20210407113444.150961-3-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Gioh Kim 2021-04-07 13:34:42 +02:00 committed by Jason Gunthorpe
parent dc3b66a0ce
commit cc85392bcd
1 changed files with 16 additions and 0 deletions
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16
drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
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@ -355,6 +355,21 @@ static ssize_t rtrs_clt_hca_name_show(struct kobject *kobj,
static struct kobj_attribute rtrs_clt_hca_name_attr =
__ATTR(hca_name, 0444, rtrs_clt_hca_name_show, NULL);
static ssize_t rtrs_clt_cur_latency_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
{
struct rtrs_clt_sess *sess;
sess = container_of(kobj, struct rtrs_clt_sess, kobj);
return sysfs_emit(page, "%lld ns\n",
ktime_to_ns(sess->s.hb_cur_latency));
}
static struct kobj_attribute rtrs_clt_cur_latency_attr =
__ATTR(cur_latency, 0444, rtrs_clt_cur_latency_show, NULL);
static ssize_t rtrs_clt_src_addr_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *page)
@ -398,6 +413,7 @@ static struct attribute *rtrs_clt_sess_attrs[] = {
&rtrs_clt_reconnect_attr.attr,
&rtrs_clt_disconnect_attr.attr,
&rtrs_clt_remove_path_attr.attr,
&rtrs_clt_cur_latency_attr.attr,
NULL,
};