07/06/2021 09:20, Wang, Haiyue: > From: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com> > > If we keep CXL in mind, I would imagine that in the future the devices on > > PCIe could have their own > > local memory. May be some of the APIs could use generic names. For ex: > > instead of calling it as > > "rte_gpu_malloc" may be we could call it as "rte_dev_malloc". This way any > > future device which hosts > > its own memory that need to be managed by the application, can use these > > APIs. > > > > "rte_dev_malloc" sounds a good name,
Yes I like the idea. 2 concerns: 1/ Device memory allocation requires a device handle. So far we avoided exposing rte_device to the application. How should we get a device handle from a DPDK application? 2/ Implementation must be done in a driver. Should it be a callback defined at rte_device level? > then looks like we need to enhance the > 'struct rte_device' with some new ops as: > > eal: move DMA mapping from bus-specific to generic driver > > https://patchwork.dpdk.org/project/dpdk/patch/20210331224547.2217759-1-tho...@monjalon.net/ Not sure the above patch is a good idea. Let's discuss this DMA detail later :)
