Hi Lizhi, I found it and managed to reuse its DMA interface within the dma_ip_drivers xdma driver. At the moment I've hacked the dma_ip_drivers xdma driver just enough that it is using the xdma dmaengine instead of most of the code in libxdma.c. Thank, //hinko ________________________________________ From: Lizhi Hou <lizhi.hou@xxxxxxx> Sent: Tuesday, January 9, 2024 5:42:13 PM To: Hinko Kocevar; brian.xu@xxxxxxx; raj.kumar.rampelli@xxxxxxx Cc: dmaengine@xxxxxxxxxxxxxxx Subject: Re: XDMA dmaengine driver implementation Hi Hinko, mgb4 driver which uses XDMA in mainline kernel. Please see: https://github.com/torvalds/linux/blob/master/drivers/media/pci/mgb4/mgb4_core.c#L437 Thanks, Lizhi On 1/9/24 03:30, Hinko Kocevar wrote: > Hi, > > here at ESS we are using https://github.com/Xilinx/dma_ip_drivers/tree/master/XDMA/linux-kernel kernel driver today with the micro TCA based data acquisition cards such as https://innovation.desy.de/technologies/microtca/boards/damc_fmc2zup/index_eng.html and https://www.struck.de/sis8300.html. The diver seems to be functioning just fine and it provides all the necessary software interfaces we desire. > > Looking at the https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git/ I noticed that there is a lot of effort in getting the XDMA dmaengine accepted into mainline kernel. As far as I understand one would need to develop an additional driver that utilizes the XDMA dmaengine driver. > > Is there a reference implementation of a driver that uses XDMA dmaengine that is similar to the on in dma_ip_drivers github repo? > > Thank you in advance! > //hinko > > > > > > Hinko Kocevar > > Beam Diagnostics Engineer > European Spallation Source ERIC > Odarslövsvägen 113, SE-224 84 Lund, Sweden > E-mail: hinko.kocevar@xxxxxx >
