RDMA/rtrs-clt: New sysfs attribute to print the latency of each path
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>
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@ -355,6 +355,21 @@ static ssize_t rtrs_clt_hca_name_show(struct kobject *kobj,
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static struct kobj_attribute rtrs_clt_hca_name_attr =
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static struct kobj_attribute rtrs_clt_hca_name_attr =
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__ATTR(hca_name, 0444, rtrs_clt_hca_name_show, NULL);
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__ATTR(hca_name, 0444, rtrs_clt_hca_name_show, NULL);
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static ssize_t rtrs_clt_cur_latency_show(struct kobject *kobj,
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struct kobj_attribute *attr,
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char *page)
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{
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struct rtrs_clt_sess *sess;
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sess = container_of(kobj, struct rtrs_clt_sess, kobj);
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return sysfs_emit(page, "%lld ns\n",
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ktime_to_ns(sess->s.hb_cur_latency));
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}
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static struct kobj_attribute rtrs_clt_cur_latency_attr =
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__ATTR(cur_latency, 0444, rtrs_clt_cur_latency_show, NULL);
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static ssize_t rtrs_clt_src_addr_show(struct kobject *kobj,
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static ssize_t rtrs_clt_src_addr_show(struct kobject *kobj,
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struct kobj_attribute *attr,
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struct kobj_attribute *attr,
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char *page)
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char *page)
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@ -398,6 +413,7 @@ static struct attribute *rtrs_clt_sess_attrs[] = {
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&rtrs_clt_reconnect_attr.attr,
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&rtrs_clt_reconnect_attr.attr,
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&rtrs_clt_disconnect_attr.attr,
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&rtrs_clt_disconnect_attr.attr,
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&rtrs_clt_remove_path_attr.attr,
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&rtrs_clt_remove_path_attr.attr,
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&rtrs_clt_cur_latency_attr.attr,
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NULL,
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NULL,
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};
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};
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