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[120.51.71.230]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c739e183596sm9178830a12.27.2026.03.09.05.45.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2026 05:45:51 -0700 (PDT) From: sawara04.o@gmail.com To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, corbet@lwn.net, skhan@linuxfoundation.org Cc: Kyoji Ogasawara , netdev@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v2 net-next 2/2] net/smc: Add documentation for limit_smc_hs and hs_ctrl Date: Mon, 9 Mar 2026 21:45:40 +0900 Message-ID: <20260309124541.22723-3-sawara04.o@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260309124541.22723-1-sawara04.o@gmail.com> References: <20260309124541.22723-1-sawara04.o@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Kyoji Ogasawara Document missing SMC sysctl parameters limit_smc_hs and hs_ctrl Signed-off-by: Kyoji Ogasawara --- Documentation/networking/smc-sysctl.rst | 27 +++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/Documentation/networking/smc-sysctl.rst b/Documentation/networking/smc-sysctl.rst index 17b8314c0e5e..3bbc5739f8ac 100644 --- a/Documentation/networking/smc-sysctl.rst +++ b/Documentation/networking/smc-sysctl.rst @@ -111,3 +111,30 @@ smcr_max_recv_wr - INTEGER like before having this control. Default: 48 + +limit_smc_hs - INTEGER + Whether to limit SMC handshake for newly created sockets. + + When enabled, SMC listen path applies handshake limitation based on + handshake worker congestion and queued SMC handshake load. + + Possible values: + + - 0 - Disable handshake limitation + - 1 - Enable handshake limitation + + Default: 0 (disable) + +hs_ctrl - STRING + Select the SMC handshake control profile by name. + + This string refers to the name of a user-implemented + BPF struct_ops instance of type smc_hs_ctrl. + + The selected profile controls whether SMC options are advertised + during TCP SYN/SYN-ACK handshake. + + Only available when CONFIG_SMC_HS_CTRL_BPF is enabled. + Write an empty string to clear the current profile. + + Default: empty string \ No newline at end of file -- 2.43.0