Re: [PATCH v1 1/1] baseband/acc: fix for TB mode on VRB1

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

On 11/4/23 00:45, Nicolas Chautru wrote:
> The input size is computed incorrectly for the
> LDPC encoder TB processing.
> 
> Fixes: e640f6cdfa84 ("baseband/acc200: add LDPC processing")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> ---
>   drivers/baseband/acc/rte_vrb_pmd.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/baseband/acc/rte_vrb_pmd.c b/drivers/baseband/acc/rte_vrb_pmd.c
> index ae230b828a..686e086a5c 100644
> --- a/drivers/baseband/acc/rte_vrb_pmd.c
> +++ b/drivers/baseband/acc/rte_vrb_pmd.c
> @@ -2218,7 +2218,8 @@ vrb1_enqueue_ldpc_enc_one_op_tb(struct acc_queue *q, struct rte_bbdev_enc_op *op
>   	uint16_t init_enq_descs = enq_descs;
>   	uint32_t in_offset = 0, out_offset = 0;
>   
> -	input_len_B = ((op->ldpc_enc.basegraph == 1 ? 22 : 10) * op->ldpc_enc.z_c) >> 3;
> +	input_len_B = ((op->ldpc_enc.basegraph == 1 ? 22 : 10) * op->ldpc_enc.z_c
> +			- op->ldpc_enc.n_filler) >> 3;
>   
>   	if (check_bit(op->ldpc_enc.op_flags, RTE_BBDEV_LDPC_CRC_24B_ATTACH))
>   		input_len_B -= 3;

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime