Re: [PATCH net v3] bnxt_en: Bound SW TPA IDs to prevent crashes

[Michael Chan]

On Thu, Aug 27, 2026 at 8:03 PM Joe Damato <joe@xxxxxxx> wrote:

> @@ -3832,6 +3835,10 @@ static int bnxt_alloc_tpa_info(struct bnxt *bp)
>
>         bp->max_tpa = MAX_TPA;
>         if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) {
> +               /* TPA is not supported at all, so there is nothing to
> +                * allocate. BNXT_SUPPORTS_TPA() is false in this case and
> +                * neither LRO nor HW GRO can be enabled.
> +                */
>                 if (!bp->max_tpa_v2)
>                         return 0;
>                 bp->max_tpa = min_t(u16, bp->max_tpa_v2, MAX_TPA_P5);
> @@ -3839,6 +3846,7 @@ static int bnxt_alloc_tpa_info(struct bnxt *bp)
>                 if (bp->max_tpa <= 32 && BNXT_CHIP_P5(bp) && !BNXT_NPAR(bp))
>                         bp->max_tpa = MAX_TPA_P5;
>         }
> +       bp->max_tpa_roundup_size = roundup_pow_of_two(bp->max_tpa);
>
This looks good to me.  Thanks.

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