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[95.90.238.229]) by smtp.googlemail.com with ESMTPSA id j1sm12359779ejt.18.2021.04.07.03.42.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Apr 2021 03:42:07 -0700 (PDT) From: Gioh Kim To: linux-rdma@vger.kernel.org Cc: bvanassche@acm.org, leon@kernel.org, dledford@redhat.com, jgg@ziepe.ca, haris.iqbal@ionos.com, jinpu.wang@ionos.com, Gioh Kim , Gioh Kim Subject: [PATCHv2 for-next 2/4] RDMA/rtrs-clt: new sysfs attribute to print the latency of each path Date: Wed, 7 Apr 2021 12:42:01 +0200 Message-Id: <20210407104203.24792-3-gi-oh.kim@ionos.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210407104203.24792-1-gi-oh.kim@ionos.com> References: <20210407104203.24792-1-gi-oh.kim@ionos.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Gioh Kim It shows the latest latency that the client checked when sending the heart-beat. Signed-off-by: Gioh Kim Signed-off-by: Jack Wang --- drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c index c8669d3f79f1..e2673a17b6a3 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c @@ -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 scnprintf(page, PAGE_SIZE, "%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, }; -- 2.25.1