Store the descriptor from the first code block from a transport block.
Copy the LDPC FCW from the first descriptor into the rest of the CBs in
that TB.
Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/baseband/acc/rte_acc100_pmd.c | 3 +++
1 file changed, 3 insertions(+)
@@ -3187,6 +3187,7 @@ enqueue_ldpc_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
uint16_t total_enqueued_cbs, uint8_t cbs_in_tb)
{
union acc_dma_desc *desc = NULL;
+ union acc_dma_desc *desc_first = NULL;
int ret;
uint8_t r, c;
uint32_t in_offset, h_out_offset,
@@ -3205,6 +3206,7 @@ enqueue_ldpc_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
& q->sw_ring_wrap_mask);
desc = q->ring_addr + desc_idx;
+ desc_first = desc;
uint64_t fcw_offset = (desc_idx << 8) + ACC_DESC_FCW_OFFSET;
union acc_harq_layout_data *harq_layout = q->d->harq_layout;
q->d->fcw_ld_fill(op, &desc->req.fcw_ld, harq_layout);
@@ -3228,6 +3230,7 @@ enqueue_ldpc_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
& q->sw_ring_wrap_mask);
desc->req.data_ptrs[0].address = q->ring_addr_iova + fcw_offset;
desc->req.data_ptrs[0].blen = ACC_FCW_LD_BLEN;
+ rte_memcpy(&desc->req.fcw_ld, &desc_first->req.fcw_ld, ACC_FCW_LD_BLEN);
ret = acc100_dma_desc_ld_fill(op, &desc->req, &input,
h_output, &in_offset, &h_out_offset,
&h_out_length,