On 09/11/2017 04:55 PM, David Miller wrote:
From: Rob Gardner <rob.gardner@xxxxxxxxxx>
Date: Mon, 11 Sep 2017 16:32:09 -0600
This patch adds hypercall function stubs and C templates for
ccb_submit/info/kill which provide coprocessor services for the Oracle
Data Analytics Accelerator, registration for the DAX api group, and
all the various associated constants.
Signed-off-by: Rob Gardner <rob.gardner@xxxxxxxxxx>
Signed-off-by: Jonathan Helman <jonathan.helman@xxxxxxxxxx>
Signed-off-by: Sanath Kumar <sanath.s.kumar@xxxxxxxxxx>
Please resubmit inside of a patch series containing the first
consumer of these interfaces.
Without an example usage, it's essentialy impossible to properly
review.
The stubs/templates/constants reflect the hypervisor APIs, so there is
not very much flexibility in how these are done.
The first consumer of these interfaces you have seen in the RFC we sent
out a week or two ago. Would it be possible for you to give us some
feedback about the form you would like this consumer to take, if not the
one we've provided? Again, since the interfaces to the coprocessor are
defined by the hypervisor, we don't have a lot of leeway in how we go
about providing coprocessor services to applications. We thought the
simplest path would be to provide pure mechanism, and leave all the work
to the user library. The library is huge and it would be highly
impractical to incorporate it into the kernel. Incidentally, we said the
library would be open sourced, and this has been done:
https://oss.oracle.com/git/gitweb.cgi?p=libdax.git
Thank you.
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