operating system - How to import non-DMA memory with spdk?

Question

I am working with ioat using SPDK but not familiar with SPDK. To be brief, I need to open a file on persistent memory and map it into the userspace using mmap(), then use ioat to perform memcpy. But now I am lost because it seem that only memory that using spdk_malloc() can pass to spdk_ioat_submit_copy(). So my question is, how can I perform ioat copy with memory in my own application like memory mapped address? I really need some help on this and I'll be really graduteful for your answers.

Answer 1

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