[openib-general] Question on get_dma_mr()

[Devesh Sharma]

On 3/29/06, Roland Dreier <rdreier at cisco.com> wrote:
>
>     Devesh> S/G entry ?
>
> scatter gather entry
>
>     Devesh> What is the size of this region ? is there any limitation
>     Devesh> in providing this size?
>
> It must be large enough to cover all DMA (bus) addresses for the device.
>
>     Devesh> Finally you mean to say in the implementation of this
>     Devesh> function providing a unique L_Key and R_Key is
>     Devesh> sufficient. Is it?
>
> I can't really understand this question.  Of course keys must be
> unique -- if two regions had the same key, then there would be no way
> for the HCA to know which one to use.


Here I am saying that assigning Key is sufficient Or there are some other
specific setps to be taken?

- R.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openfabrics.org/pipermail/general/attachments/20060330/cb1cd089/attachment.html>