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[95.90.238.229]) by smtp.googlemail.com with ESMTPSA id jj15sm10987694ejc.99.2021.04.06.05.05.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Apr 2021 05:05:58 -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 Subject: [PATCH 4/4] Documentation/ABI/rtrs-clt: Add descriptions for min-latency policy Date: Tue, 6 Apr 2021 14:05:53 +0200 Message-Id: <20210406120553.197848-5-gi-oh.kim@ionos.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210406120553.197848-1-gi-oh.kim@ionos.com> References: <20210406120553.197848-1-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 describe new multipath policy min-latency of the RTRS client. Signed-off-by: Gioh Kim Signed-off-by: Jack Wang --- Documentation/ABI/testing/sysfs-class-rtrs-client | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-class-rtrs-client b/Documentation/ABI/testing/sysfs-class-rtrs-client index 0f7165aab251..49a4157c7bf1 100644 --- a/Documentation/ABI/testing/sysfs-class-rtrs-client +++ b/Documentation/ABI/testing/sysfs-class-rtrs-client @@ -34,6 +34,9 @@ Description: Multipath policy specifies which path should be selected on each IO min-inflight (1): select path with minimum inflights. + min-latency (2): + select path with minimum latency. + What: /sys/class/rtrs-client//paths/ Date: Feb 2020 KernelVersion: 5.7 @@ -95,6 +98,15 @@ KernelVersion: 5.7 Contact: Jack Wang Danil Kipnis Description: RO, Contains the destination address of the path +What: /sys/class/rtrs-client//paths//cur_latency +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang Danil Kipnis +Description: RO, Contains the latency time calculated by the heart-beat messages. + Whenever the client sends heart-beat message, it checks the time gap + between sending the heart-beat message and receiving the ACK. + This value can be changed regularly. + What: /sys/class/rtrs-client//paths//stats/reset_all Date: Feb 2020 KernelVersion: 5.7 -- 2.25.1