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[2003:ea:8f2b:7200:a9b8:4711:836e:e074]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-435e10ee04csm9144019f8f.12.2026.01.28.11.08.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Jan 2026 11:08:13 -0800 (PST) Message-ID: <4a13d635-7a22-4de6-a4bb-1ae4351b114c@gmail.com> Date: Wed, 28 Jan 2026 20:08:12 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v1 0/3] r816e: Add r816e driver in Realtek To: javen Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, nic_swsd@realtek.com, pabeni@redhat.com References: <640c373b-09d9-4b54-9113-782df41aa152@gmail.com> <20260128065309.556-1-javen_xu@realsil.com.cn> Content-Language: en-US From: Heiner Kallweit In-Reply-To: <20260128065309.556-1-javen_xu@realsil.com.cn> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/28/2026 7:53 AM, javen wrote: >> On 1/27/2026 12:34 PM, javen wrote: > >>> From: Javen Xu > >>> > >>> This series patch add a fake driver r816e to ensure the kernel could > >>> set the correct power state for #fun through r816e driver when suspending. > >>> > >> > >> I think a better approach would be to contribute to adding phylink/sfp support > >> to r8169, so that the SFP NIC versions (incl. RTL8116AF) can be properly > >> supported. This would have to include making the SFP I2C bus accessible by > >> the kernel (instead of firmware only). > >> > > > > RTL8116af is a multi-function device. fun0 is a BMC virtual driver and fun1 is > > the nic driver. The BMC virtual driver(fun0) is used for power management, > > while fun1 provides the actual network functionality. > > If only purpose of this dummy driver is to bring the device to D3hot during system suspend, then this may be a question to the PCI subsystem maintainer(s). PCI devices are instantiated by the PCI core, just that in case of the device here no driver gets attached. Still PCI core applies a default suspend handling to each device.