[PATCH v4 25/30] baseband/acc100: store FCW from first CB descriptor

[Hernan Vargas]

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 at intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/baseband/acc/rte_acc100_pmd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c
index e00a636d9f..ed5ee63950 100644
--- a/drivers/baseband/acc/rte_acc100_pmd.c
+++ b/drivers/baseband/acc/rte_acc100_pmd.c
@@ -3188,6 +3188,7 @@ 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,
@@ -3207,6 +3208,7 @@ enqueue_ldpc_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
 
 	desc_idx = acc_desc_idx(q, total_enqueued_cbs);
 	desc = q->ring_addr + desc_idx;
+	desc_first = desc;
 	fcw_offset = (desc_idx << 8) + ACC_DESC_FCW_OFFSET;
 	harq_layout = q->d->harq_layout;
 	q->d->fcw_ld_fill(op, &desc->req.fcw_ld, harq_layout);
@@ -3229,6 +3231,7 @@ enqueue_ldpc_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
 		desc = acc_desc(q, total_enqueued_cbs);
 		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,
-- 
2.37.1