[dpdk-dev] [PATCH v9 6/9] eal: auto detect iova mode

[santosh]

On Friday 06 October 2017 05:49 AM, Thomas Monjalon wrote:
> 20/09/2017 13:23, Santosh Shukla:
>> For auto detection purpose:
>> * Below calls moved up in the eal initialization order:
>> 	- eal_option_device_parse
>> 	- rte_bus_scan
>>
>> Based on the result of rte_bus_scan_iommu_class - select iova
>> mapping mode.
> It does not explain why you need to move things up.

For that one should understand eal_init sequence first.
Should know about _option_device_parse and rte_bus_scan() dependency.

After that bus_scan is a need for _get_iommu_class() of api to know that
- kdrv is igb/uio/vfio etc.. That's why. Refer work history.
Again V9 series happened not for fun. I diagress on your comment.