Re: [EXTERNAL] Re: [PATCH 05/12] net: mana: Set the DMA device max page size

Jason Gunthorpe
2022-05-18T23:11:24Z

On Wed, May 18, 2022 at 09:05:22PM +0000, Ajay Sharma wrote:

> Use the ib_umem_find_best_pgsz() and rdma_for_each_block() API when
> registering an MR instead of coding it in the driver.

The dma_set_max_seg_size() has *nothing* to do with
ib_umem_find_best_pgsz() other than its value should be larger than
the largest set bit.

Again, it is supposed to be the maximum value the HW can support in a
ib_sge length field, which is usually 2G.

Jason