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([2406:7400:63:bba0:f455:dde0:da00:4e14]) by smtp.gmail.com with ESMTPSA id t11-20020a170902d14b00b0016648412514sm11814674plt.188.2022.07.19.10.22.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Jul 2022 10:22:29 -0700 (PDT) Message-ID: Date: Tue, 19 Jul 2022 22:52:20 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 From: aman.kumar@vvdntech.in To: Thomas Monjalon , hemant.agrawal@nxp.com, Hemant Agrawal , dev@dpdk.org, maxime.coquelin@redhat.com, david.marchand@redhat.com, hemant.agrawal@nxp.com, Gagandeep Singh Subject: Re: [RFC PATCH 00/29] cover letter for net/qdma PMD References: <20220706075219.517046-1-aman.kumar@vvdntech.in> <6797649.18pcnM708K@thomas> In-Reply-To: <6797649.18pcnM708K@thomas> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On 19/07/22 5:42 pm, Thomas Monjalon wrote: > 18/07/2022 20:15, aman.kumar@vvdntech.in: > > On 07/07/22 7:49 pm, Hemant Agrawal wrote: > >> > >> On 7/7/2022 7:45 PM, Thomas Monjalon wrote: > >>> 07/07/2022 15:55, Aman Kumar: > >>>> On 07/07/22 12:27 pm, Thomas Monjalon wrote: > >>>>> 06/07/2022 09:51, Aman Kumar: > >>>>>> This patch series provides net PMD for VVDN's NR(5G) Hi-PHY > >>>>>> solution over > >>>>>> T1 telco card. These telco accelerator NIC cards are targeted for > >>>>>> ORAN DU > >>>>>> systems to offload inline NR Hi-PHY (split 7.2) operations. For the > >>>>>> DU host, > >>>>>> the cards typically appears as a basic NIC device. The device is > >>>>>> based on > >>>>>> AMD/Xilinx's Ultrasale MPSoC and RFSoC FPGA for which the inline > >>>>>> Hi-PHY IP > >>>>>> is developed by VVDN Technologies Private Limited. > >>>>>> PCI_VENDOR: 0x1f44, Supported Devices: 0x0201, 0x0281 > >>>>>> > >>>>>> Hardware-specs: > >>>>>> https://www.xilinx.com/publications/product-briefs/xilinx-t1-product-brief.pdf > >>>>>> > >>>>>> > >>>>>> - This series is an RFC and target for DPDK v22.11. > >>>>>> - Currently, the PMD is supported only for x86_64 host. > >>>>>> - Build machine used: Fedora 36 with gcc 12.1.1 > >>>>>> - The device communicates to host over AMD/Xilinx's QDMA subsystem for > >>>>>> PCIe interface. Link: https://docs.xilinx.com/r/en-US/pg302-qdma > >>>>> That's unfortunate, there is something else called QDMA in NXP > >>>>> solution: > >>>>> https://git.dpdk.org/dpdk/tree/drivers/dma/dpaa2 > >>>> Is this going to create a conflict against this submission? I guess > >>>> both are publicly available/known for long time. > >>> If it's the marketing name, go for it, > >>> but it is unfortunate. > >> > >> QDMA is a very generic name and many vendors have IP for it. > >> > >> My suggestions is the qualify the specific driver with vendor name i.e. > >> amd_qdma or xilinx_qdma or something similar. > >> > >> NXP also did the same dpaa2_qdma > >> > >> > > @Thomas, @Hemant, > > Thank you for highlights and suggestions regarding conflicting names. > > We've discussed this internally and came up with below plan. > > > > For v22.11 DPDK, we would like to submit patches with below renames: > > drivers/net/qdma -> drivers/net/t1 > > drivers/net/qdma/qdma_*.c/h -> drivers/net/t1/t1_*.c/h > > driver/net/qdma/qdma_access -> driver/net/t1/base > > Curious why "t1"? > What is the meaning? The hardware is commerically named as the "T1 card". T1 represents first card of the telco accelerator series. https://www.xilinx.com/publications/product-briefs/xilinx-t1-product-brief.pdf