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Fri, 03 Oct 2025 02:56:12 -0700 (PDT) Received: from geday ([2804:7f2:800b:2c45::dead:c001]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-78b01fb1a9fsm4407283b3a.20.2025.10.03.02.56.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Oct 2025 02:56:11 -0700 (PDT) Date: Fri, 3 Oct 2025 06:56:04 -0300 From: Geraldo Nascimento To: Shawn Lin Cc: Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Heiko Stuebner , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: Re: [RFC PATCH v3 2/3] PCI: rockchip-host: Retry link training on failure without PERST# Message-ID: References: <067e1833-8527-4c66-90f5-d284f7d2ca5c@rock-chips.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <067e1833-8527-4c66-90f5-d284f7d2ca5c@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251003_025613_915278_7B83C66C X-CRM114-Status: GOOD ( 16.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jul 18, 2025 at 11:46:33AM +0800, Shawn Lin wrote: > 在 2025/07/18 星期五 11:33, Geraldo Nascimento 写道: > > > > Also, since you're asking me to test some code, I think it is only fair > > if I ask you to test my code, too. It shouldn't be too hard for you to > > find a otherwise working NVMe SSD that refuses to complete link training > > with current code. Connect this SSD please to a RK3399 board and let us > > know if my proposed code change does anything to ameliorate the > > long-standing issue of SSD that refuses to cooperate. > > Sure, I don't have Samsung PM981a SSD now, but I could try to test all > my SSDs to find if I could pick up one that won't work. > Hi Shawn, Haven't heard back from you so I assume you tested with SSD that should work but does not and that the test failed? Thanks, Geraldo Nascimento