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Fri, 06 Feb 2026 17:05:39 -0800 (PST) From: Mohsin Bashir To: netdev@vger.kernel.org Cc: alexanderduyck@fb.com, andrew+netdev@lunn.ch, andrew@lunn.ch, davem@davemloft.net, donald.hunter@gmail.com, edumazet@google.com, gal@nvidia.com, horms@kernel.org, idosch@nvidia.com, jacob.e.keller@intel.com, kernel-team@meta.com, kory.maincent@bootlin.com, kuba@kernel.org, lee@trager.us, leon@kernel.org, linux-rdma@vger.kernel.org, linux@armlinux.org.uk, mbloch@nvidia.com, mohsin.bashr@gmail.com, o.rempel@pengutronix.de, pabeni@redhat.com, saeedm@nvidia.com, tariqt@nvidia.com, vadim.fedorenko@linux.dev Subject: [PATCH net-next V2 2/5] net: ethtool: Update doc for tunable Date: Fri, 6 Feb 2026 17:05:22 -0800 Message-ID: <20260207010525.3808842-3-mohsin.bashr@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260207010525.3808842-1-mohsin.bashr@gmail.com> References: <20260207010525.3808842-1-mohsin.bashr@gmail.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ETHTOOL_PFC_PREVENTION_TOUT enables the configuration of timeout value for PFC storm prevention. This can also be used to configure storm detection timeout for global pause settings. In fact some existing drivers are already using it for the said purpose. Highlight that the knob can formally be used to configure timeout value for pause storm prevention mechanism. The update to the ethtool man page will follow afterwards. Link: https://lore.kernel.org/aa5f189a-ac62-4633-97b5-ebf939e9c535@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir --- include/uapi/linux/ethtool.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index b74b80508553..1cdfb8341df2 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -225,7 +225,7 @@ enum tunable_id { ETHTOOL_ID_UNSPEC, ETHTOOL_RX_COPYBREAK, ETHTOOL_TX_COPYBREAK, - ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */ + ETHTOOL_PFC_PREVENTION_TOUT, /* both pause and pfc, see man ethtool */ ETHTOOL_TX_COPYBREAK_BUF_SIZE, /* * Add your fresh new tunable attribute above and remember to update -- 2.47.3