Re: [PATCH rdma-rc] RDMA/bnxt_re: Fix budget handling of notification queue

[Jason Gunthorpe <jgg@nvidia.com>]

On Mon, Mar 24, 2025 at 09:39:35AM +0530, Kalesh AP wrote:
> From: Kashyap Desai <kashyap.desai@broadcom.com>
> 
> The cited commit in Fixes tag introduced a bug which can cause hang
> of completion queue processing because of notification queue budget
> goes to zero.
> 
> Found while doing nfs over rdma mount and umount.
> Below message is noticed because of the existing bug.
> 
> kernel: cm_destroy_id_wait_timeout: cm_id=00000000ff6c6cc6 timed out. state 11 -> 0, refcnt=1
> 
> Fix to handle this issue -
> Driver will not change nq->budget upon create and destroy of cq and srq
> rdma resources.
> 
> Fixes: cb97b377a135 ("RDMA/bnxt_re: Refurbish CQ to NQ hash calculation")
> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
> Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
> ---
>  drivers/infiniband/hw/bnxt_re/ib_verbs.c | 5 -----
>  1 file changed, 5 deletions(-)

Applied to for-rc, thanks

Jason