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[59.124.168.89]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f63241e085sm55824135ad.299.2024.06.02.22.47.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Jun 2024 22:47:41 -0700 (PDT) From: "Fea.Wang" To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: "Edgar E. Iglesias" , Alistair Francis , Peter Maydell , Jason Wang , qemu-arm@nongnu.org (open list:Xilinx Zynq), "Fea.Wang" Subject: [PATCH 0/4] hw/dma: Add error handling for loading descriptions failing Date: Mon, 3 Jun 2024 13:52:44 +0800 Message-Id: <20240603055248.3928469-1-fea.wang@sifive.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52e; envelope-from=fea.wang@sifive.com; helo=mail-pg1-x52e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The original code assumes that memory transmission is always successful, but in some cases, it gets bus-error. Add error handling for DMA reading description failures. Do some reasonable settings, and return the corrected transmission size. Finally, return the error status. base-commit: 1806da76cb81088ea026ca3441551782b850e393 Fea.Wang (4): hw/dma: Enhance error handling in loading description hw/dma: Break the loop when loading descriptions fails hw/dma: Add a trace log for a description loading failure hw/net: Fix the transmission return size hw/dma/trace-events | 3 +++ hw/dma/xilinx_axidma.c | 27 +++++++++++++++++++++++---- hw/net/xilinx_axienet.c | 2 +- 3 files changed, 27 insertions(+), 5 deletions(-)