o: Xiong, Jianxin
> > > Cc: linux-r...@vger.kernel.org; dri-devel@lists.freedesktop.org;
> > > Doug Ledford ; Leon Romanovsky
> > > ; Sumit Semwal ; Christian
> > > Koenig ; Vetter, Daniel
> > >
> > > Subject: Re: [PATCH v5 1/5] RDMA/umem: Support
On Sat, Oct 17, 2020 at 9:05 PM Jason Gunthorpe wrote:
>
> On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong wrote:
>
> > +static void ib_umem_dmabuf_invalidate_cb(struct dma_buf_attachment *attach)
> > +{
> > + struct ib_umem_dmabuf *umem_dmabuf = attach->importer_priv;
> > +
> > +
> > ; Sumit Semwal ; Christian Koenig
> > ; Vetter, Daniel
> >
> > Subject: Re: [PATCH v5 1/5] RDMA/umem: Support importing dma-buf as user
> > memory region
> >
> > On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong w
On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong wrote:
> +static void ib_umem_dmabuf_invalidate_cb(struct dma_buf_attachment *attach)
> +{
> + struct ib_umem_dmabuf *umem_dmabuf = attach->importer_priv;
> +
> + dma_resv_assert_held(umem_dmabuf->attach->dmabuf->resv);
> +
> + ib
On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong wrote:
> +struct ib_umem *ib_umem_dmabuf_get(struct ib_device *device,
> +unsigned long addr, size_t size,
> +int dmabuf_fd, int access,
> +const s
>
> Subject: Re: [PATCH v5 1/5] RDMA/umem: Support importing dma-buf as user
> memory region
>
> On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong wrote:
> > +struct ib_umem *ib_umem_dmabuf_get(struct ib_device *device,
> > +
Daniel
>
> Subject: Re: [PATCH v5 1/5] RDMA/umem: Support importing dma-buf as user
> memory region
>
> On Thu, Oct 15, 2020 at 03:02:45PM -0700, Jianxin Xiong wrote:
>
> > +static void ib_umem_dmabuf_invalidate_cb(struct dma_buf_attachment
> > +*attach) {
> > +
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
