Re: [PATCH v5 fwctl 3/3] fwctl/bnxt: add DMA buffer support for HWRM commands

[Pavan Chebbi]

On Fri, Aug 7, 2026 at 7:31 PM Jason Gunthorpe <jgg@xxxxxxxx> wrote:
>
> On Fri, Aug 07, 2026 at 09:32:34AM +0530, Pavan Chebbi wrote:
> > > struct hwrm_dbg_ptrace_input {
> > >         __le16  req_type;
> > >         __le16  cmpl_ring;
> > >         __le16  seq_id;
> > >         __le16  target_id;
> > >         __le64  resp_addr;
> > >         __le32  pdi_cmd_buf_addr[2];
> > >         __le32  pdi_resp_buf_addr[2];
> > >                                  ^^^
> > >
> > > This is really sketchy to cast an array to a __le64. If it really
> > > means a __le64 then the struct should say that, if it doesn't mean a
> > > __le64 then this is broken right?
> > >
> >
> > Since hsi.h is generated from the HWRM spec rather than hand authored,
> > it'd need to be fixed at that source.
> > I will take this as a follow up change that we need to do internally..
>
> But it is correct to be a le64 and the sketchy cast is Ok?
>

I have addressed the sketchy part in v6.

> Jason

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