Re: [dpdk-dev] freeing memzone

[Harish Patil <harish.patil@qlogic.com>]

>
>On 21/05/2015 17:59, Harish Patil wrote:
>> Hello dpdk-dev,
>>
>> I understand that the reserved memzones cannot be freed, as mentioned in
>> the DPDK specs. But I would like to know why? Is there any limitations?
>There should be a few threads in the mailing list related to this topic.
>Last that comes to mind:
>http://dpdk.org/ml/archives/dev/2015-April/016501.html
>
>Short answer is, it has not been implemented yet.
>> If the memory is not freed/returned, then can it be reused for
>>subsequent
>> allocations without re-init (i.e. with same memzone name)?
>> We use it for allocating DMA’ble memory.
>It is up to the application to manage the use/re-use of memzones.
>By the way, would maybe rte_malloc memory be more suitable than memzones
>for your application?
>You can retrieve the physical address of memory allcoated by rte_malloc
>with rte_malloc_virt2phy.
>> Secondly, there was a related discussion on this in the following email
>> thread:
>> http://dpdk.org/ml/archives/dev/2014-July/004456.html
>>
>> Do we plan to incorporate that changes?
>There is some ongoing work related to freeing memzones:
>http://dpdk.org/ml/archives/dev/2015-May/017470.html
>
>Feel free to comment on it.
>
>Sergio
>> Thanks,
>> Harish
>>
>>
>> ________________________________
>>
>

Thanks very much Sergio. I will take a look at your suggested links and
get back to you shortly.

Thanks,
Harish


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