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To: Pavel Fedin <p.fedin@samsung.com>
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From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
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Date: Tue, 12 Jan 2016 11:44:43 +0000
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Cc: dev@dpdk.org, nakajima.yoshihiro@lab.ntt.co.jp,
 ann.zhuangyanying@huawei.com, "'Michael S. Tsirkin'" <mst@redhat.com>
Subject: Re: [dpdk-dev] [PATCH 2/4] mem: add API to obstain memory-backed
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On 12/01/2016 11:07, Sergio Gonzalez Monroy wrote:
> Hi Pavel,
>
> On 12/01/2016 11:00, Pavel Fedin wrote:
>>   Hello!
>>
>>>>    BTW, i'm still unhappy about ABI breakage here. I think we could 
>>>> easily add --shared-mem

Could you elaborate a bit more on your concerns regarding ABI breakage ?

>>> option, which would simply change mapping mode to SHARED. So, we 
>>> could use it with both
>>> hugepages (default) and plain mmap (with --no-hugepages).
>>>
>>> You mean, use "--no-hugepages --shared-mem" together, right?
>>   Yes. This would be perfectly backwards-compatible because.
>
> So are you suggesting to not introduce --single-file option but 
> instead --shared-mem?
> AFAIK --single-file was trying to workaround the limitation of just 
> being able to map 8 fds.
>

My bad, I misread the posts.
Jianfeng pointed out that you are suggesting to have --shared-mem to 
have same functionality
with or without hugepages.

Sergio

> Sergio
>> Kind regards,
>> Pavel Fedin
>> Senior Engineer
>> Samsung Electronics Research center Russia
>>
>>
>