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[5.12.227.87]) by smtp.gmail.com with ESMTPSA id l1sm3815458eje.12.2021.02.11.02.45.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Feb 2021 02:45:30 -0800 (PST) From: Vladimir Oltean To: David Ahern , netdev@vger.kernel.org Cc: Andrew Lunn , Florian Fainelli , Vivien Didelot , Jiri Pirko , Ido Schimmel , DENG Qingfang , Tobias Waldekranz , Roopa Prabhu , Nikolay Aleksandrov , Stephen Hemminger Subject: [PATCH iproute2 5/6] man8/bridge.8: explain self vs master for "bridge fdb add" Date: Thu, 11 Feb 2021 12:45:01 +0200 Message-Id: <20210211104502.2081443-6-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210211104502.2081443-1-olteanv@gmail.com> References: <20210211104502.2081443-1-olteanv@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Vladimir Oltean The "usually hardware" and "usually software" distinctions make no sense, try to clarify what these do based on the actual kernel behavior. Signed-off-by: Vladimir Oltean --- man/man8/bridge.8 | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index 1dc0aec83f09..d0bcd708bb61 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -533,12 +533,21 @@ specified. .sp .B self -- the address is associated with the port drivers fdb. Usually hardware - (default). +- the operation is fulfilled directly by the driver for the specified network +device. If the network device belongs to a master like a bridge, then the +bridge is bypassed and not notified of this operation (and if the device does +notify the bridge, it is driver-specific behavior and not mandated by this +flag, check the driver for more details). The "bridge fdb add" command can also +be used on the bridge device itself, and in this case, the added fdb entries +will be locally terminated (not forwarded). In the latter case, the "self" flag +is mandatory. The flag is set by default if "master" is not specified. .sp .B master -- the address is associated with master devices fdb. Usually software. +- if the specified network device is a port that belongs to a master device +such as a bridge, the operation is fulfilled by the master device's driver, +which may in turn notify the port driver too of the address. If the specified +device is a master itself, such as a bridge, this flag is invalid. .sp .B router -- 2.25.1