Re: [PATCH v2 1/1] baseband/acc: fix ring memory allocation logic

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 11/8/24 01:32, Nicolas Chautru wrote:
> Allowing ring memory allocation whose end address is aligned with 64 MB.
> Previous logic was off by one.
> 
> Fixes: 060e76729302 ("baseband/acc100: add queue configuration")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> ---
>   drivers/baseband/acc/acc_common.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/baseband/acc/acc_common.h b/drivers/baseband/acc/acc_common.h
> index 4c60b7896b..bf218332be 100644
> --- a/drivers/baseband/acc/acc_common.h
> +++ b/drivers/baseband/acc/acc_common.h
> @@ -795,7 +795,7 @@ alloc_sw_rings_min_mem(struct rte_bbdev *dev, struct acc_device *d,
>   				sw_rings_base, ACC_SIZE_64MBYTE);
>   		next_64mb_align_addr_iova = sw_rings_base_iova +
>   				next_64mb_align_offset;
> -		sw_ring_iova_end_addr = sw_rings_base_iova + dev_sw_ring_size;
> +		sw_ring_iova_end_addr = sw_rings_base_iova + dev_sw_ring_size - 1;
>   
>   		/* Check if the end of the sw ring memory block is before the
>   		 * start of next 64MB aligned mem address
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime