On Fri, Nov 1, 2024 at 4:14 AM Yunsheng Lin linyunsheng@huawei.com wrote:
On 2024/10/30 4:45, Mina Almasry wrote:
Create page_pool_alloc_netmem to be the mirror of page_pool_alloc.
This enables drivers that want currently use page_pool_alloc to transition to netmem by converting the call sites to page_pool_alloc_netmem.
For old API, page_pool_alloc_pages() always return a whole page, and page_pool_alloc() returns a whole page or a page fragment based on the requested size.
For new netmem API, page_pool_alloc_netmems() always return a whole netmem, and page_pool_alloc_netmem() returns a whole netmem or a netmem fragment based on the requested size.
Isn't it a little odd that old and new are not following the same pattern?
Hi Yunsheng,
The intention is that page_pool_alloc_pages is mirrored by page_pool_alloc_netmems.
And page_pool_alloc is mirrored by page_pool_alloc_netmem.
From your description, the behavior is the same for each function and its mirror. What is the gap in the pattern that you see?