Re: [PATCH 09/14] RDMA/bnxt: Do not use ib_umem_page_count() or ib_umem_num_pages()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Sep 2, 2020 at 6:14 AM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:
>
> ib_umem_page_count() returns the number of 4k entries required for a DMA
> map, but bnxt_re already computes a variable page size. The correct API to
> determine the size of the page table array is ib_umem_num_dma_blocks().
>
> Fix the overallocation of the page array in fill_umem_pbl_tbl() when
> working with larger page sizes by using the right function. Lightly
> re-organize this function to make it clearer.
>
> Replace the other calls to ib_umem_num_pages().
>
> Fixes: d85582517e91 ("RDMA/bnxt_re: Use core helpers to get aligned DMA address")
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> ---
>  drivers/infiniband/hw/bnxt_re/ib_verbs.c | 70 ++++++++----------------
>  1 file changed, 24 insertions(+), 46 deletions(-)
>

Acked-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>

Thanks



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux