[dpdk-dev] [RFC v2 01/17] mempool: fix phys contig check if populate default skipped

[santosh]

On Wednesday 31 January 2018 10:15 PM, Olivier Matz wrote:
> On Tue, Jan 23, 2018 at 01:15:56PM +0000, Andrew Rybchenko wrote:
>> There is not specified dependency between rte_mempool_populate_default()
>> and rte_mempool_populate_iova(). So, the second should not rely on the
>> fact that the first adds capability flags to the mempool flags.
>>
>> Fixes: 65cf769f5e6a ("mempool: detect physical contiguous objects")
>> Cc: stable at dpdk.org
>>
>> Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
> Looks good to me. I agree it's strange that the mp->flags are
> updated with capabilities only in rte_mempool_populate_default().
> I see that this behavior is removed later in the patchset since the
> get_capa() is removed!
>
> However maybe this single patch could go in 18.02.
> +Santosh +Jerin since it's mostly about Octeon.

rte_mempool_xmem_size should return correct size if MEMPOOL_F_CAPA_BLK_ALIGNED_OBJECTS flag
is set in 'mp->flags'. Thats why _ops_get_capabilities() called in _populate_default() but not
at _populate_iova().
I think, this 'alone' patch may break octeontx mempool.