[dpdk-dev] [PATCH] eal: add request to map reserved physical memory

Scott Branden scott.branden at broadcom.com
Fri Apr 27 19:09:49 CEST 2018



On 18-04-27 09:49 AM, Burakov, Anatoly wrote:
> On 27-Apr-18 5:30 PM, Scott Branden wrote:
>> Hi Anatoly,
>>
>> We'd appreciate your input so we can come to a solution of supporting 
>> the necessary memory allocations?
>>
>
> Hi Scott,
>
> I'm currently starting to work on a prototype that will be at least 
> RFC'd (if not v1'd) during 18.08 timeframe. Basically, the idea is to 
> create/destroy named malloc heaps dynamically, and allow user to 
> request memory from them. You may then mmap() whatever you want and 
> create a malloc heap out of it.
>
> Does that sound reasonable?
Hi Anatoly,

We have a solution right now that requires a kernel driver to allocate 
large contiguous memory and the DPDK changes in the patch. We would like 
to come to a common upstreamed solution as soon as possible.  So please 
send out the patch as soon as you can and we can test/comment on it.  I 
would hope this is a simple addition and shouldn't take long to come to 
an acceptable implementation.  We need this change for DPDK to operate 
on our devices.

Thanks,
  Scott





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