Re: [PATCH v11 1/4] RDMA/umem: Support importing dma-buf as user memory region

2020-11-25 Thread Jason Gunthorpe
; > > Leon Romanovsky ; Sumit Semwal ; > > Christian Koenig ; Vetter, > > Daniel > > Subject: Re: [PATCH v11 1/4] RDMA/umem: Support importing dma-buf as user > > memory region > > > > As these are mostly trivial wrappers around the EXPORT_SYMBOL_GPL

RE: [PATCH v11 1/4] RDMA/umem: Support importing dma-buf as user memory region

2020-11-24 Thread Xiong, Jianxin
oenig ; Vetter, > Daniel > Subject: Re: [PATCH v11 1/4] RDMA/umem: Support importing dma-buf as user > memory region > > As these are mostly trivial wrappers around the EXPORT_SYMBOL_GPL dmabuf > exports please stick to that export style. > > > --- /dev/null > >

[PATCH v11 1/4] RDMA/umem: Support importing dma-buf as user memory region

2020-11-23 Thread Jianxin Xiong
Dma-buf is a standard cross-driver buffer sharing mechanism that can be used to support peer-to-peer access from RDMA devices. Device memory exported via dma-buf is associated with a file descriptor. This is passed to the user space as a property associated with the buffer allocation. When the buf