Re: [PATCH for-next 0/4] RDMA/erdma: Support non-contiguous kernel queue buffers

[Cheng Xu <chengyou@linux.alibaba.com>]

On 8/25/26 8:45 PM, Cheng Xu wrote:
> Hi,
> 
> This small patchset introduces support for non-contiguous kernel queue
> buffers. Kernel QP and CQ buffers currently use a single coherent DMA
> allocation, which can fail for large queues when memory is fragmented.
> To address this, we allocate page-sized coherent buffers and describe
> them with the existing MTT.
> 
> - #1 adds support for non-contiguous kernel QP buffers.
> - #2 adds support for non-contiguous kernel CQ buffers.
> - #3 unifies userspace and kernel space queue buffer management.
> - #4 moves kernel QP helpers after the shared memory helpers.
> 
> Thanks,
> Cheng Xu
> 
> Cheng Xu (4):
>   RDMA/erdma: Support non-contiguous kernel QP buffers
>   RDMA/erdma: Support non-contiguous kernel CQ buffers
>   RDMA/erdma: Unify userspace and kernel queue buffer management
>   RDMA/erdma: Move kernel QP helpers after memory helpers
> 

Hi,

I found some formatting issues in this patchset. Please ignore it, and I
will send a v2.

Sorry for the noise.

Thanks,
Cheng Xu


>  drivers/infiniband/hw/erdma/erdma_cq.c    |  19 +-
>  drivers/infiniband/hw/erdma/erdma_qp.c    |  38 +-
>  drivers/infiniband/hw/erdma/erdma_verbs.c | 579 +++++++++++++---------
>  drivers/infiniband/hw/erdma/erdma_verbs.h |  64 ++-
>  4 files changed, 420 insertions(+), 280 deletions(-)
>