[v7,07/11] baseband/acc100: add support for 4G processing
diff mbox series

Message ID 1600827906-73771-8-git-send-email-nicolas.chautru@intel.com
State Deferred
Delegated to: akhil goyal
Headers show
Series
  • bbdev PMD ACC100
Related show

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Nicolas Chautru Sept. 23, 2020, 2:25 a.m. UTC
Adding capability for 4G encode and decoder processing

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Acked-by: Liu Tianjiao <Tianjiao.liu@intel.com>
---
 drivers/baseband/acc100/rte_acc100_pmd.c | 1010 ++++++++++++++++++++++++++++--
 1 file changed, 943 insertions(+), 67 deletions(-)

Patch
diff mbox series

diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
index e484c0a..7d4c3df 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -339,7 +339,6 @@ 
 	free_base_addresses(base_addrs, i);
 }
 
-
 /* Allocate 64MB memory used for all software rings */
 static int
 acc100_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
@@ -637,6 +636,41 @@ 
 
 	static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
 		{
+			.type = RTE_BBDEV_OP_TURBO_DEC,
+			.cap.turbo_dec = {
+				.capability_flags =
+					RTE_BBDEV_TURBO_SUBBLOCK_DEINTERLEAVE |
+					RTE_BBDEV_TURBO_CRC_TYPE_24B |
+					RTE_BBDEV_TURBO_HALF_ITERATION_EVEN |
+					RTE_BBDEV_TURBO_EARLY_TERMINATION |
+					RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
+					RTE_BBDEV_TURBO_MAP_DEC |
+					RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP |
+					RTE_BBDEV_TURBO_DEC_SCATTER_GATHER,
+				.max_llr_modulus = INT8_MAX,
+				.num_buffers_src =
+						RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
+				.num_buffers_hard_out =
+						RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
+				.num_buffers_soft_out =
+						RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
+			}
+		},
+		{
+			.type = RTE_BBDEV_OP_TURBO_ENC,
+			.cap.turbo_enc = {
+				.capability_flags =
+					RTE_BBDEV_TURBO_CRC_24B_ATTACH |
+					RTE_BBDEV_TURBO_RV_INDEX_BYPASS |
+					RTE_BBDEV_TURBO_RATE_MATCH |
+					RTE_BBDEV_TURBO_ENC_SCATTER_GATHER,
+				.num_buffers_src =
+						RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
+				.num_buffers_dst =
+						RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
+			}
+		},
+		{
 			.type   = RTE_BBDEV_OP_LDPC_ENC,
 			.cap.ldpc_enc = {
 				.capability_flags =
@@ -719,7 +753,6 @@ 
 #endif
 }
 
-
 static const struct rte_bbdev_ops acc100_bbdev_ops = {
 	.setup_queues = acc100_setup_queues,
 	.close = acc100_dev_close,
@@ -763,6 +796,58 @@ 
 	return tail;
 }
 
+/* Fill in a frame control word for turbo encoding. */
+static inline void
+acc100_fcw_te_fill(const struct rte_bbdev_enc_op *op, struct acc100_fcw_te *fcw)
+{
+	fcw->code_block_mode = op->turbo_enc.code_block_mode;
+	if (fcw->code_block_mode == 0) { /* For TB mode */
+		fcw->k_neg = op->turbo_enc.tb_params.k_neg;
+		fcw->k_pos = op->turbo_enc.tb_params.k_pos;
+		fcw->c_neg = op->turbo_enc.tb_params.c_neg;
+		fcw->c = op->turbo_enc.tb_params.c;
+		fcw->ncb_neg = op->turbo_enc.tb_params.ncb_neg;
+		fcw->ncb_pos = op->turbo_enc.tb_params.ncb_pos;
+
+		if (check_bit(op->turbo_enc.op_flags,
+				RTE_BBDEV_TURBO_RATE_MATCH)) {
+			fcw->bypass_rm = 0;
+			fcw->cab = op->turbo_enc.tb_params.cab;
+			fcw->ea = op->turbo_enc.tb_params.ea;
+			fcw->eb = op->turbo_enc.tb_params.eb;
+		} else {
+			/* E is set to the encoding output size when RM is
+			 * bypassed.
+			 */
+			fcw->bypass_rm = 1;
+			fcw->cab = fcw->c_neg;
+			fcw->ea = 3 * fcw->k_neg + 12;
+			fcw->eb = 3 * fcw->k_pos + 12;
+		}
+	} else { /* For CB mode */
+		fcw->k_pos = op->turbo_enc.cb_params.k;
+		fcw->ncb_pos = op->turbo_enc.cb_params.ncb;
+
+		if (check_bit(op->turbo_enc.op_flags,
+				RTE_BBDEV_TURBO_RATE_MATCH)) {
+			fcw->bypass_rm = 0;
+			fcw->eb = op->turbo_enc.cb_params.e;
+		} else {
+			/* E is set to the encoding output size when RM is
+			 * bypassed.
+			 */
+			fcw->bypass_rm = 1;
+			fcw->eb = 3 * fcw->k_pos + 12;
+		}
+	}
+
+	fcw->bypass_rv_idx1 = check_bit(op->turbo_enc.op_flags,
+			RTE_BBDEV_TURBO_RV_INDEX_BYPASS);
+	fcw->code_block_crc = check_bit(op->turbo_enc.op_flags,
+			RTE_BBDEV_TURBO_CRC_24B_ATTACH);
+	fcw->rv_idx1 = op->turbo_enc.rv_index;
+}
+
 /* Compute value of k0.
  * Based on 3GPP 38.212 Table 5.4.2.1-2
  * Starting position of different redundancy versions, k0
@@ -813,6 +898,25 @@ 
 	fcw->mcb_count = num_cb;
 }
 
+/* Fill in a frame control word for turbo decoding. */
+static inline void
+acc100_fcw_td_fill(const struct rte_bbdev_dec_op *op, struct acc100_fcw_td *fcw)
+{
+	/* Note : Early termination is always enabled for 4GUL */
+	fcw->fcw_ver = 1;
+	if (op->turbo_dec.code_block_mode == 0)
+		fcw->k_pos = op->turbo_dec.tb_params.k_pos;
+	else
+		fcw->k_pos = op->turbo_dec.cb_params.k;
+	fcw->turbo_crc_type = check_bit(op->turbo_dec.op_flags,
+			RTE_BBDEV_TURBO_CRC_TYPE_24B);
+	fcw->bypass_sb_deint = 0;
+	fcw->raw_decoder_input_on = 0;
+	fcw->max_iter = op->turbo_dec.iter_max;
+	fcw->half_iter_on = !check_bit(op->turbo_dec.op_flags,
+			RTE_BBDEV_TURBO_HALF_ITERATION_EVEN);
+}
+
 /* Fill in a frame control word for LDPC decoding. */
 static inline void
 acc100_fcw_ld_fill(const struct rte_bbdev_dec_op *op, struct acc100_fcw_ld *fcw,
@@ -1042,6 +1146,87 @@ 
 }
 
 static inline int
+acc100_dma_desc_te_fill(struct rte_bbdev_enc_op *op,
+		struct acc100_dma_req_desc *desc, struct rte_mbuf **input,
+		struct rte_mbuf *output, uint32_t *in_offset,
+		uint32_t *out_offset, uint32_t *out_length,
+		uint32_t *mbuf_total_left, uint32_t *seg_total_left, uint8_t r)
+{
+	int next_triplet = 1; /* FCW already done */
+	uint32_t e, ea, eb, length;
+	uint16_t k, k_neg, k_pos;
+	uint8_t cab, c_neg;
+
+	desc->word0 = ACC100_DMA_DESC_TYPE;
+	desc->word1 = 0; /**< Timestamp could be disabled */
+	desc->word2 = 0;
+	desc->word3 = 0;
+	desc->numCBs = 1;
+
+	if (op->turbo_enc.code_block_mode == 0) {
+		ea = op->turbo_enc.tb_params.ea;
+		eb = op->turbo_enc.tb_params.eb;
+		cab = op->turbo_enc.tb_params.cab;
+		k_neg = op->turbo_enc.tb_params.k_neg;
+		k_pos = op->turbo_enc.tb_params.k_pos;
+		c_neg = op->turbo_enc.tb_params.c_neg;
+		e = (r < cab) ? ea : eb;
+		k = (r < c_neg) ? k_neg : k_pos;
+	} else {
+		e = op->turbo_enc.cb_params.e;
+		k = op->turbo_enc.cb_params.k;
+	}
+
+	if (check_bit(op->turbo_enc.op_flags, RTE_BBDEV_TURBO_CRC_24B_ATTACH))
+		length = (k - 24) >> 3;
+	else
+		length = k >> 3;
+
+	if (unlikely((*mbuf_total_left == 0) || (*mbuf_total_left < length))) {
+		rte_bbdev_log(ERR,
+				"Mismatch between mbuf length and included CB sizes: mbuf len %u, cb len %u",
+				*mbuf_total_left, length);
+		return -1;
+	}
+
+	next_triplet = acc100_dma_fill_blk_type_in(desc, input, in_offset,
+			length, seg_total_left, next_triplet);
+	if (unlikely(next_triplet < 0)) {
+		rte_bbdev_log(ERR,
+				"Mismatch between data to process and mbuf data length in bbdev_op: %p",
+				op);
+		return -1;
+	}
+	desc->data_ptrs[next_triplet - 1].last = 1;
+	desc->m2dlen = next_triplet;
+	*mbuf_total_left -= length;
+
+	/* Set output length */
+	if (check_bit(op->turbo_enc.op_flags, RTE_BBDEV_TURBO_RATE_MATCH))
+		/* Integer round up division by 8 */
+		*out_length = (e + 7) >> 3;
+	else
+		*out_length = (k >> 3) * 3 + 2;
+
+	next_triplet = acc100_dma_fill_blk_type_out(desc, output, *out_offset,
+			*out_length, next_triplet, ACC100_DMA_BLKID_OUT_ENC);
+	if (unlikely(next_triplet < 0)) {
+		rte_bbdev_log(ERR,
+				"Mismatch between data to process and mbuf data length in bbdev_op: %p",
+				op);
+		return -1;
+	}
+	op->turbo_enc.output.length += *out_length;
+	*out_offset += *out_length;
+	desc->data_ptrs[next_triplet - 1].last = 1;
+	desc->d2mlen = next_triplet - desc->m2dlen;
+
+	desc->op_addr = op;
+
+	return 0;
+}
+
+static inline int
 acc100_dma_desc_le_fill(struct rte_bbdev_enc_op *op,
 		struct acc100_dma_req_desc *desc, struct rte_mbuf **input,
 		struct rte_mbuf *output, uint32_t *in_offset,
@@ -1110,6 +1295,117 @@ 
 }
 
 static inline int
+acc100_dma_desc_td_fill(struct rte_bbdev_dec_op *op,
+		struct acc100_dma_req_desc *desc, struct rte_mbuf **input,
+		struct rte_mbuf *h_output, struct rte_mbuf *s_output,
+		uint32_t *in_offset, uint32_t *h_out_offset,
+		uint32_t *s_out_offset, uint32_t *h_out_length,
+		uint32_t *s_out_length, uint32_t *mbuf_total_left,
+		uint32_t *seg_total_left, uint8_t r)
+{
+	int next_triplet = 1; /* FCW already done */
+	uint16_t k;
+	uint16_t crc24_overlap = 0;
+	uint32_t e, kw;
+
+	desc->word0 = ACC100_DMA_DESC_TYPE;
+	desc->word1 = 0; /**< Timestamp could be disabled */
+	desc->word2 = 0;
+	desc->word3 = 0;
+	desc->numCBs = 1;
+
+	if (op->turbo_dec.code_block_mode == 0) {
+		k = (r < op->turbo_dec.tb_params.c_neg)
+			? op->turbo_dec.tb_params.k_neg
+			: op->turbo_dec.tb_params.k_pos;
+		e = (r < op->turbo_dec.tb_params.cab)
+			? op->turbo_dec.tb_params.ea
+			: op->turbo_dec.tb_params.eb;
+	} else {
+		k = op->turbo_dec.cb_params.k;
+		e = op->turbo_dec.cb_params.e;
+	}
+
+	if ((op->turbo_dec.code_block_mode == 0)
+		&& !check_bit(op->turbo_dec.op_flags,
+		RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP))
+		crc24_overlap = 24;
+
+	/* Calculates circular buffer size.
+	 * According to 3gpp 36.212 section 5.1.4.2
+	 *   Kw = 3 * Kpi,
+	 * where:
+	 *   Kpi = nCol * nRow
+	 * where nCol is 32 and nRow can be calculated from:
+	 *   D =< nCol * nRow
+	 * where D is the size of each output from turbo encoder block (k + 4).
+	 */
+	kw = RTE_ALIGN_CEIL(k + 4, 32) * 3;
+
+	if (unlikely((*mbuf_total_left == 0) || (*mbuf_total_left < kw))) {
+		rte_bbdev_log(ERR,
+				"Mismatch between mbuf length and included CB sizes: mbuf len %u, cb len %u",
+				*mbuf_total_left, kw);
+		return -1;
+	}
+
+	next_triplet = acc100_dma_fill_blk_type_in(desc, input, in_offset, kw,
+			seg_total_left, next_triplet);
+	if (unlikely(next_triplet < 0)) {
+		rte_bbdev_log(ERR,
+				"Mismatch between data to process and mbuf data length in bbdev_op: %p",
+				op);
+		return -1;
+	}
+	desc->data_ptrs[next_triplet - 1].last = 1;
+	desc->m2dlen = next_triplet;
+	*mbuf_total_left -= kw;
+
+	next_triplet = acc100_dma_fill_blk_type_out(
+			desc, h_output, *h_out_offset,
+			k >> 3, next_triplet, ACC100_DMA_BLKID_OUT_HARD);
+	if (unlikely(next_triplet < 0)) {
+		rte_bbdev_log(ERR,
+				"Mismatch between data to process and mbuf data length in bbdev_op: %p",
+				op);
+		return -1;
+	}
+
+	*h_out_length = ((k - crc24_overlap) >> 3);
+	op->turbo_dec.hard_output.length += *h_out_length;
+	*h_out_offset += *h_out_length;
+
+	/* Soft output */
+	if (check_bit(op->turbo_dec.op_flags, RTE_BBDEV_TURBO_SOFT_OUTPUT)) {
+		if (check_bit(op->turbo_dec.op_flags,
+				RTE_BBDEV_TURBO_EQUALIZER))
+			*s_out_length = e;
+		else
+			*s_out_length = (k * 3) + 12;
+
+		next_triplet = acc100_dma_fill_blk_type_out(desc, s_output,
+				*s_out_offset, *s_out_length, next_triplet,
+				ACC100_DMA_BLKID_OUT_SOFT);
+		if (unlikely(next_triplet < 0)) {
+			rte_bbdev_log(ERR,
+					"Mismatch between data to process and mbuf data length in bbdev_op: %p",
+					op);
+			return -1;
+		}
+
+		op->turbo_dec.soft_output.length += *s_out_length;
+		*s_out_offset += *s_out_length;
+	}
+
+	desc->data_ptrs[next_triplet - 1].last = 1;
+	desc->d2mlen = next_triplet - desc->m2dlen;
+
+	desc->op_addr = op;
+
+	return 0;
+}
+
+static inline int
 acc100_dma_desc_ld_fill(struct rte_bbdev_dec_op *op,
 		struct acc100_dma_req_desc *desc,
 		struct rte_mbuf **input, struct rte_mbuf *h_output,
@@ -1374,6 +1670,57 @@ 
 
 /* Enqueue one encode operations for ACC100 device in CB mode */
 static inline int
+enqueue_enc_one_op_cb(struct acc100_queue *q, struct rte_bbdev_enc_op *op,
+		uint16_t total_enqueued_cbs)
+{
+	union acc100_dma_desc *desc = NULL;
+	int ret;
+	uint32_t in_offset, out_offset, out_length, mbuf_total_left,
+		seg_total_left;
+	struct rte_mbuf *input, *output_head, *output;
+
+	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
+			& q->sw_ring_wrap_mask);
+	desc = q->ring_addr + desc_idx;
+	acc100_fcw_te_fill(op, &desc->req.fcw_te);
+
+	input = op->turbo_enc.input.data;
+	output_head = output = op->turbo_enc.output.data;
+	in_offset = op->turbo_enc.input.offset;
+	out_offset = op->turbo_enc.output.offset;
+	out_length = 0;
+	mbuf_total_left = op->turbo_enc.input.length;
+	seg_total_left = rte_pktmbuf_data_len(op->turbo_enc.input.data)
+			- in_offset;
+
+	ret = acc100_dma_desc_te_fill(op, &desc->req, &input, output,
+			&in_offset, &out_offset, &out_length, &mbuf_total_left,
+			&seg_total_left, 0);
+
+	if (unlikely(ret < 0))
+		return ret;
+
+	mbuf_append(output_head, output, out_length);
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	rte_memdump(stderr, "FCW", &desc->req.fcw_te,
+			sizeof(desc->req.fcw_te) - 8);
+	rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc));
+
+	/* Check if any data left after processing one CB */
+	if (mbuf_total_left != 0) {
+		rte_bbdev_log(ERR,
+				"Some date still left after processing one CB: mbuf_total_left = %u",
+				mbuf_total_left);
+		return -EINVAL;
+	}
+#endif
+	/* One CB (one op) was successfully prepared to enqueue */
+	return 1;
+}
+
+/* Enqueue one encode operations for ACC100 device in CB mode */
+static inline int
 enqueue_ldpc_enc_n_op_cb(struct acc100_queue *q, struct rte_bbdev_enc_op **ops,
 		uint16_t total_enqueued_cbs, int16_t num)
 {
@@ -1481,78 +1828,235 @@ 
 	return 1;
 }
 
-static inline int
-harq_loopback(struct acc100_queue *q, struct rte_bbdev_dec_op *op,
-		uint16_t total_enqueued_cbs) {
-	struct acc100_fcw_ld *fcw;
-	union acc100_dma_desc *desc;
-	int next_triplet = 1;
-	struct rte_mbuf *hq_output_head, *hq_output;
-	uint16_t harq_in_length = op->ldpc_dec.harq_combined_input.length;
-	if (harq_in_length == 0) {
-		rte_bbdev_log(ERR, "Loopback of invalid null size\n");
-		return -EINVAL;
-	}
 
-	int h_comp = check_bit(op->ldpc_dec.op_flags,
-			RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION
-			) ? 1 : 0;
-	if (h_comp == 1)
-		harq_in_length = harq_in_length * 8 / 6;
-	harq_in_length = RTE_ALIGN(harq_in_length, 64);
-	uint16_t harq_dma_length_in = (h_comp == 0) ?
-			harq_in_length :
-			harq_in_length * 6 / 8;
-	uint16_t harq_dma_length_out = harq_dma_length_in;
-	bool ddr_mem_in = check_bit(op->ldpc_dec.op_flags,
-			RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE);
-	union acc100_harq_layout_data *harq_layout = q->d->harq_layout;
-	uint16_t harq_index = (ddr_mem_in ?
-			op->ldpc_dec.harq_combined_input.offset :
-			op->ldpc_dec.harq_combined_output.offset)
-			/ ACC100_HARQ_OFFSET;
+/* Enqueue one encode operations for ACC100 device in TB mode. */
+static inline int
+enqueue_enc_one_op_tb(struct acc100_queue *q, struct rte_bbdev_enc_op *op,
+		uint16_t total_enqueued_cbs, uint8_t cbs_in_tb)
+{
+	union acc100_dma_desc *desc = NULL;
+	int ret;
+	uint8_t r, c;
+	uint32_t in_offset, out_offset, out_length, mbuf_total_left,
+		seg_total_left;
+	struct rte_mbuf *input, *output_head, *output;
+	uint16_t current_enqueued_cbs = 0;
 
 	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
 			& q->sw_ring_wrap_mask);
 	desc = q->ring_addr + desc_idx;
-	fcw = &desc->req.fcw_ld;
-	/* Set the FCW from loopback into DDR */
-	memset(fcw, 0, sizeof(struct acc100_fcw_ld));
-	fcw->FCWversion = ACC100_FCW_VER;
-	fcw->qm = 2;
-	fcw->Zc = 384;
-	if (harq_in_length < 16 * N_ZC_1)
-		fcw->Zc = 16;
-	fcw->ncb = fcw->Zc * N_ZC_1;
-	fcw->rm_e = 2;
-	fcw->hcin_en = 1;
-	fcw->hcout_en = 1;
+	uint64_t fcw_offset = (desc_idx << 8) + ACC100_DESC_FCW_OFFSET;
+	acc100_fcw_te_fill(op, &desc->req.fcw_te);
 
-	rte_bbdev_log(DEBUG, "Loopback IN %d Index %d offset %d length %d %d\n",
-			ddr_mem_in, harq_index,
-			harq_layout[harq_index].offset, harq_in_length,
-			harq_dma_length_in);
+	input = op->turbo_enc.input.data;
+	output_head = output = op->turbo_enc.output.data;
+	in_offset = op->turbo_enc.input.offset;
+	out_offset = op->turbo_enc.output.offset;
+	out_length = 0;
+	mbuf_total_left = op->turbo_enc.input.length;
 
-	if (ddr_mem_in && (harq_layout[harq_index].offset > 0)) {
-		fcw->hcin_size0 = harq_layout[harq_index].size0;
-		fcw->hcin_offset = harq_layout[harq_index].offset;
-		fcw->hcin_size1 = harq_in_length - fcw->hcin_offset;
-		harq_dma_length_in = (fcw->hcin_size0 + fcw->hcin_size1);
-		if (h_comp == 1)
-			harq_dma_length_in = harq_dma_length_in * 6 / 8;
-	} else {
-		fcw->hcin_size0 = harq_in_length;
-	}
-	harq_layout[harq_index].val = 0;
-	rte_bbdev_log(DEBUG, "Loopback FCW Config %d %d %d\n",
-			fcw->hcin_size0, fcw->hcin_offset, fcw->hcin_size1);
-	fcw->hcout_size0 = harq_in_length;
-	fcw->hcin_decomp_mode = h_comp;
-	fcw->hcout_comp_mode = h_comp;
-	fcw->gain_i = 1;
-	fcw->gain_h = 1;
+	c = op->turbo_enc.tb_params.c;
+	r = op->turbo_enc.tb_params.r;
 
-	/* Set the prefix of descriptor. This could be done at polling */
+	while (mbuf_total_left > 0 && r < c) {
+		seg_total_left = rte_pktmbuf_data_len(input) - in_offset;
+		/* Set up DMA descriptor */
+		desc = q->ring_addr + ((q->sw_ring_head + total_enqueued_cbs)
+				& q->sw_ring_wrap_mask);
+		desc->req.data_ptrs[0].address = q->ring_addr_phys + fcw_offset;
+		desc->req.data_ptrs[0].blen = ACC100_FCW_TE_BLEN;
+
+		ret = acc100_dma_desc_te_fill(op, &desc->req, &input, output,
+				&in_offset, &out_offset, &out_length,
+				&mbuf_total_left, &seg_total_left, r);
+		if (unlikely(ret < 0))
+			return ret;
+		mbuf_append(output_head, output, out_length);
+
+		/* Set total number of CBs in TB */
+		desc->req.cbs_in_tb = cbs_in_tb;
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+		rte_memdump(stderr, "FCW", &desc->req.fcw_te,
+				sizeof(desc->req.fcw_te) - 8);
+		rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc));
+#endif
+
+		if (seg_total_left == 0) {
+			/* Go to the next mbuf */
+			input = input->next;
+			in_offset = 0;
+			output = output->next;
+			out_offset = 0;
+		}
+
+		total_enqueued_cbs++;
+		current_enqueued_cbs++;
+		r++;
+	}
+
+	if (unlikely(desc == NULL))
+		return current_enqueued_cbs;
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	/* Check if any CBs left for processing */
+	if (mbuf_total_left != 0) {
+		rte_bbdev_log(ERR,
+				"Some date still left for processing: mbuf_total_left = %u",
+				mbuf_total_left);
+		return -EINVAL;
+	}
+#endif
+
+	/* Set SDone on last CB descriptor for TB mode. */
+	desc->req.sdone_enable = 1;
+	desc->req.irq_enable = q->irq_enable;
+
+	return current_enqueued_cbs;
+}
+
+/** Enqueue one decode operations for ACC100 device in CB mode */
+static inline int
+enqueue_dec_one_op_cb(struct acc100_queue *q, struct rte_bbdev_dec_op *op,
+		uint16_t total_enqueued_cbs)
+{
+	union acc100_dma_desc *desc = NULL;
+	int ret;
+	uint32_t in_offset, h_out_offset, s_out_offset, s_out_length,
+		h_out_length, mbuf_total_left, seg_total_left;
+	struct rte_mbuf *input, *h_output_head, *h_output,
+		*s_output_head, *s_output;
+
+	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
+			& q->sw_ring_wrap_mask);
+	desc = q->ring_addr + desc_idx;
+	acc100_fcw_td_fill(op, &desc->req.fcw_td);
+
+	input = op->turbo_dec.input.data;
+	h_output_head = h_output = op->turbo_dec.hard_output.data;
+	s_output_head = s_output = op->turbo_dec.soft_output.data;
+	in_offset = op->turbo_dec.input.offset;
+	h_out_offset = op->turbo_dec.hard_output.offset;
+	s_out_offset = op->turbo_dec.soft_output.offset;
+	h_out_length = s_out_length = 0;
+	mbuf_total_left = op->turbo_dec.input.length;
+	seg_total_left = rte_pktmbuf_data_len(input) - in_offset;
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	if (unlikely(input == NULL)) {
+		rte_bbdev_log(ERR, "Invalid mbuf pointer");
+		return -EFAULT;
+	}
+#endif
+
+	/* Set up DMA descriptor */
+	desc = q->ring_addr + ((q->sw_ring_head + total_enqueued_cbs)
+			& q->sw_ring_wrap_mask);
+
+	ret = acc100_dma_desc_td_fill(op, &desc->req, &input, h_output,
+			s_output, &in_offset, &h_out_offset, &s_out_offset,
+			&h_out_length, &s_out_length, &mbuf_total_left,
+			&seg_total_left, 0);
+
+	if (unlikely(ret < 0))
+		return ret;
+
+	/* Hard output */
+	mbuf_append(h_output_head, h_output, h_out_length);
+
+	/* Soft output */
+	if (check_bit(op->turbo_dec.op_flags, RTE_BBDEV_TURBO_SOFT_OUTPUT))
+		mbuf_append(s_output_head, s_output, s_out_length);
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	rte_memdump(stderr, "FCW", &desc->req.fcw_td,
+			sizeof(desc->req.fcw_td) - 8);
+	rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc));
+
+	/* Check if any CBs left for processing */
+	if (mbuf_total_left != 0) {
+		rte_bbdev_log(ERR,
+				"Some date still left after processing one CB: mbuf_total_left = %u",
+				mbuf_total_left);
+		return -EINVAL;
+	}
+#endif
+
+	/* One CB (one op) was successfully prepared to enqueue */
+	return 1;
+}
+
+static inline int
+harq_loopback(struct acc100_queue *q, struct rte_bbdev_dec_op *op,
+		uint16_t total_enqueued_cbs) {
+	struct acc100_fcw_ld *fcw;
+	union acc100_dma_desc *desc;
+	int next_triplet = 1;
+	struct rte_mbuf *hq_output_head, *hq_output;
+	uint16_t harq_in_length = op->ldpc_dec.harq_combined_input.length;
+	if (harq_in_length == 0) {
+		rte_bbdev_log(ERR, "Loopback of invalid null size\n");
+		return -EINVAL;
+	}
+
+	int h_comp = check_bit(op->ldpc_dec.op_flags,
+			RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION
+			) ? 1 : 0;
+	if (h_comp == 1)
+		harq_in_length = harq_in_length * 8 / 6;
+	harq_in_length = RTE_ALIGN(harq_in_length, 64);
+	uint16_t harq_dma_length_in = (h_comp == 0) ?
+			harq_in_length :
+			harq_in_length * 6 / 8;
+	uint16_t harq_dma_length_out = harq_dma_length_in;
+	bool ddr_mem_in = check_bit(op->ldpc_dec.op_flags,
+			RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE);
+	union acc100_harq_layout_data *harq_layout = q->d->harq_layout;
+	uint16_t harq_index = (ddr_mem_in ?
+			op->ldpc_dec.harq_combined_input.offset :
+			op->ldpc_dec.harq_combined_output.offset)
+			/ ACC100_HARQ_OFFSET;
+
+	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
+			& q->sw_ring_wrap_mask);
+	desc = q->ring_addr + desc_idx;
+	fcw = &desc->req.fcw_ld;
+	/* Set the FCW from loopback into DDR */
+	memset(fcw, 0, sizeof(struct acc100_fcw_ld));
+	fcw->FCWversion = ACC100_FCW_VER;
+	fcw->qm = 2;
+	fcw->Zc = 384;
+	if (harq_in_length < 16 * N_ZC_1)
+		fcw->Zc = 16;
+	fcw->ncb = fcw->Zc * N_ZC_1;
+	fcw->rm_e = 2;
+	fcw->hcin_en = 1;
+	fcw->hcout_en = 1;
+
+	rte_bbdev_log(DEBUG, "Loopback IN %d Index %d offset %d length %d %d\n",
+			ddr_mem_in, harq_index,
+			harq_layout[harq_index].offset, harq_in_length,
+			harq_dma_length_in);
+
+	if (ddr_mem_in && (harq_layout[harq_index].offset > 0)) {
+		fcw->hcin_size0 = harq_layout[harq_index].size0;
+		fcw->hcin_offset = harq_layout[harq_index].offset;
+		fcw->hcin_size1 = harq_in_length - fcw->hcin_offset;
+		harq_dma_length_in = (fcw->hcin_size0 + fcw->hcin_size1);
+		if (h_comp == 1)
+			harq_dma_length_in = harq_dma_length_in * 6 / 8;
+	} else {
+		fcw->hcin_size0 = harq_in_length;
+	}
+	harq_layout[harq_index].val = 0;
+	rte_bbdev_log(DEBUG, "Loopback FCW Config %d %d %d\n",
+			fcw->hcin_size0, fcw->hcin_offset, fcw->hcin_size1);
+	fcw->hcout_size0 = harq_in_length;
+	fcw->hcin_decomp_mode = h_comp;
+	fcw->hcout_comp_mode = h_comp;
+	fcw->gain_i = 1;
+	fcw->gain_h = 1;
+
+	/* Set the prefix of descriptor. This could be done at polling */
 	desc->req.word0 = ACC100_DMA_DESC_TYPE;
 	desc->req.word1 = 0; /**< Timestamp could be disabled */
 	desc->req.word2 = 0;
@@ -1816,6 +2320,107 @@ 
 	return current_enqueued_cbs;
 }
 
+/* Enqueue one decode operations for ACC100 device in TB mode */
+static inline int
+enqueue_dec_one_op_tb(struct acc100_queue *q, struct rte_bbdev_dec_op *op,
+		uint16_t total_enqueued_cbs, uint8_t cbs_in_tb)
+{
+	union acc100_dma_desc *desc = NULL;
+	int ret;
+	uint8_t r, c;
+	uint32_t in_offset, h_out_offset, s_out_offset, s_out_length,
+		h_out_length, mbuf_total_left, seg_total_left;
+	struct rte_mbuf *input, *h_output_head, *h_output,
+		*s_output_head, *s_output;
+	uint16_t current_enqueued_cbs = 0;
+
+	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
+			& q->sw_ring_wrap_mask);
+	desc = q->ring_addr + desc_idx;
+	uint64_t fcw_offset = (desc_idx << 8) + ACC100_DESC_FCW_OFFSET;
+	acc100_fcw_td_fill(op, &desc->req.fcw_td);
+
+	input = op->turbo_dec.input.data;
+	h_output_head = h_output = op->turbo_dec.hard_output.data;
+	s_output_head = s_output = op->turbo_dec.soft_output.data;
+	in_offset = op->turbo_dec.input.offset;
+	h_out_offset = op->turbo_dec.hard_output.offset;
+	s_out_offset = op->turbo_dec.soft_output.offset;
+	h_out_length = s_out_length = 0;
+	mbuf_total_left = op->turbo_dec.input.length;
+	c = op->turbo_dec.tb_params.c;
+	r = op->turbo_dec.tb_params.r;
+
+	while (mbuf_total_left > 0 && r < c) {
+
+		seg_total_left = rte_pktmbuf_data_len(input) - in_offset;
+
+		/* Set up DMA descriptor */
+		desc = q->ring_addr + ((q->sw_ring_head + total_enqueued_cbs)
+				& q->sw_ring_wrap_mask);
+		desc->req.data_ptrs[0].address = q->ring_addr_phys + fcw_offset;
+		desc->req.data_ptrs[0].blen = ACC100_FCW_TD_BLEN;
+		ret = acc100_dma_desc_td_fill(op, &desc->req, &input,
+				h_output, s_output, &in_offset, &h_out_offset,
+				&s_out_offset, &h_out_length, &s_out_length,
+				&mbuf_total_left, &seg_total_left, r);
+
+		if (unlikely(ret < 0))
+			return ret;
+
+		/* Hard output */
+		mbuf_append(h_output_head, h_output, h_out_length);
+
+		/* Soft output */
+		if (check_bit(op->turbo_dec.op_flags,
+				RTE_BBDEV_TURBO_SOFT_OUTPUT))
+			mbuf_append(s_output_head, s_output, s_out_length);
+
+		/* Set total number of CBs in TB */
+		desc->req.cbs_in_tb = cbs_in_tb;
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+		rte_memdump(stderr, "FCW", &desc->req.fcw_td,
+				sizeof(desc->req.fcw_td) - 8);
+		rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc));
+#endif
+
+		if (seg_total_left == 0) {
+			/* Go to the next mbuf */
+			input = input->next;
+			in_offset = 0;
+			h_output = h_output->next;
+			h_out_offset = 0;
+
+			if (check_bit(op->turbo_dec.op_flags,
+					RTE_BBDEV_TURBO_SOFT_OUTPUT)) {
+				s_output = s_output->next;
+				s_out_offset = 0;
+			}
+		}
+
+		total_enqueued_cbs++;
+		current_enqueued_cbs++;
+		r++;
+	}
+
+	if (unlikely(desc == NULL))
+		return current_enqueued_cbs;
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	/* Check if any CBs left for processing */
+	if (mbuf_total_left != 0) {
+		rte_bbdev_log(ERR,
+				"Some date still left for processing: mbuf_total_left = %u",
+				mbuf_total_left);
+		return -EINVAL;
+	}
+#endif
+	/* Set SDone on last CB descriptor for TB mode */
+	desc->req.sdone_enable = 1;
+	desc->req.irq_enable = q->irq_enable;
+
+	return current_enqueued_cbs;
+}
 
 /* Calculates number of CBs in processed encoder TB based on 'r' and input
  * length.
@@ -1893,6 +2498,45 @@ 
 	return cbs_in_tb;
 }
 
+/* Enqueue encode operations for ACC100 device in CB mode. */
+static uint16_t
+acc100_enqueue_enc_cb(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_enc_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	int32_t avail = q->sw_ring_depth + q->sw_ring_tail - q->sw_ring_head;
+	uint16_t i;
+	union acc100_dma_desc *desc;
+	int ret;
+
+	for (i = 0; i < num; ++i) {
+		/* Check if there are available space for further processing */
+		if (unlikely(avail - 1 < 0))
+			break;
+		avail -= 1;
+
+		ret = enqueue_enc_one_op_cb(q, ops[i], i);
+		if (ret < 0)
+			break;
+	}
+
+	if (unlikely(i == 0))
+		return 0; /* Nothing to enqueue */
+
+	/* Set SDone in last CB in enqueued ops for CB mode*/
+	desc = q->ring_addr + ((q->sw_ring_head + i - 1)
+			& q->sw_ring_wrap_mask);
+	desc->req.sdone_enable = 1;
+	desc->req.irq_enable = q->irq_enable;
+
+	acc100_dma_enqueue(q, i, &q_data->queue_stats);
+
+	/* Update stats */
+	q_data->queue_stats.enqueued_count += i;
+	q_data->queue_stats.enqueue_err_count += num - i;
+	return i;
+}
+
 /* Check we can mux encode operations with common FCW */
 static inline bool
 check_mux(struct rte_bbdev_enc_op **ops, uint16_t num) {
@@ -1960,6 +2604,52 @@ 
 	return i;
 }
 
+/* Enqueue encode operations for ACC100 device in TB mode. */
+static uint16_t
+acc100_enqueue_enc_tb(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_enc_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	int32_t avail = q->sw_ring_depth + q->sw_ring_tail - q->sw_ring_head;
+	uint16_t i, enqueued_cbs = 0;
+	uint8_t cbs_in_tb;
+	int ret;
+
+	for (i = 0; i < num; ++i) {
+		cbs_in_tb = get_num_cbs_in_tb_enc(&ops[i]->turbo_enc);
+		/* Check if there are available space for further processing */
+		if (unlikely(avail - cbs_in_tb < 0))
+			break;
+		avail -= cbs_in_tb;
+
+		ret = enqueue_enc_one_op_tb(q, ops[i], enqueued_cbs, cbs_in_tb);
+		if (ret < 0)
+			break;
+		enqueued_cbs += ret;
+	}
+
+	acc100_dma_enqueue(q, enqueued_cbs, &q_data->queue_stats);
+
+	/* Update stats */
+	q_data->queue_stats.enqueued_count += i;
+	q_data->queue_stats.enqueue_err_count += num - i;
+
+	return i;
+}
+
+/* Enqueue encode operations for ACC100 device. */
+static uint16_t
+acc100_enqueue_enc(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_enc_op **ops, uint16_t num)
+{
+	if (unlikely(num == 0))
+		return 0;
+	if (ops[0]->turbo_enc.code_block_mode == 0)
+		return acc100_enqueue_enc_tb(q_data, ops, num);
+	else
+		return acc100_enqueue_enc_cb(q_data, ops, num);
+}
+
 /* Enqueue encode operations for ACC100 device. */
 static uint16_t
 acc100_enqueue_ldpc_enc(struct rte_bbdev_queue_data *q_data,
@@ -1967,7 +2657,51 @@ 
 {
 	if (unlikely(num == 0))
 		return 0;
-	return acc100_enqueue_ldpc_enc_cb(q_data, ops, num);
+	if (ops[0]->ldpc_enc.code_block_mode == 0)
+		return acc100_enqueue_enc_tb(q_data, ops, num);
+	else
+		return acc100_enqueue_ldpc_enc_cb(q_data, ops, num);
+}
+
+
+/* Enqueue decode operations for ACC100 device in CB mode */
+static uint16_t
+acc100_enqueue_dec_cb(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_dec_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	int32_t avail = q->sw_ring_depth + q->sw_ring_tail - q->sw_ring_head;
+	uint16_t i;
+	union acc100_dma_desc *desc;
+	int ret;
+
+	for (i = 0; i < num; ++i) {
+		/* Check if there are available space for further processing */
+		if (unlikely(avail - 1 < 0))
+			break;
+		avail -= 1;
+
+		ret = enqueue_dec_one_op_cb(q, ops[i], i);
+		if (ret < 0)
+			break;
+	}
+
+	if (unlikely(i == 0))
+		return 0; /* Nothing to enqueue */
+
+	/* Set SDone in last CB in enqueued ops for CB mode*/
+	desc = q->ring_addr + ((q->sw_ring_head + i - 1)
+			& q->sw_ring_wrap_mask);
+	desc->req.sdone_enable = 1;
+	desc->req.irq_enable = q->irq_enable;
+
+	acc100_dma_enqueue(q, i, &q_data->queue_stats);
+
+	/* Update stats */
+	q_data->queue_stats.enqueued_count += i;
+	q_data->queue_stats.enqueue_err_count += num - i;
+
+	return i;
 }
 
 /* Check we can mux encode operations with common FCW */
@@ -2065,6 +2799,53 @@ 
 	return i;
 }
 
+
+/* Enqueue decode operations for ACC100 device in TB mode */
+static uint16_t
+acc100_enqueue_dec_tb(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_dec_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	int32_t avail = q->sw_ring_depth + q->sw_ring_tail - q->sw_ring_head;
+	uint16_t i, enqueued_cbs = 0;
+	uint8_t cbs_in_tb;
+	int ret;
+
+	for (i = 0; i < num; ++i) {
+		cbs_in_tb = get_num_cbs_in_tb_dec(&ops[i]->turbo_dec);
+		/* Check if there are available space for further processing */
+		if (unlikely(avail - cbs_in_tb < 0))
+			break;
+		avail -= cbs_in_tb;
+
+		ret = enqueue_dec_one_op_tb(q, ops[i], enqueued_cbs, cbs_in_tb);
+		if (ret < 0)
+			break;
+		enqueued_cbs += ret;
+	}
+
+	acc100_dma_enqueue(q, enqueued_cbs, &q_data->queue_stats);
+
+	/* Update stats */
+	q_data->queue_stats.enqueued_count += i;
+	q_data->queue_stats.enqueue_err_count += num - i;
+
+	return i;
+}
+
+/* Enqueue decode operations for ACC100 device. */
+static uint16_t
+acc100_enqueue_dec(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_dec_op **ops, uint16_t num)
+{
+	if (unlikely(num == 0))
+		return 0;
+	if (ops[0]->turbo_dec.code_block_mode == 0)
+		return acc100_enqueue_dec_tb(q_data, ops, num);
+	else
+		return acc100_enqueue_dec_cb(q_data, ops, num);
+}
+
 /* Enqueue decode operations for ACC100 device. */
 static uint16_t
 acc100_enqueue_ldpc_dec(struct rte_bbdev_queue_data *q_data,
@@ -2388,6 +3169,51 @@ 
 	return cb_idx;
 }
 
+/* Dequeue encode operations from ACC100 device. */
+static uint16_t
+acc100_dequeue_enc(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_enc_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	uint16_t dequeue_num;
+	uint32_t avail = q->sw_ring_head - q->sw_ring_tail;
+	uint32_t aq_dequeued = 0;
+	uint16_t i;
+	uint16_t dequeued_cbs = 0;
+	struct rte_bbdev_enc_op *op;
+	int ret;
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	if (unlikely(ops == 0 && q == NULL))
+		return 0;
+#endif
+
+	dequeue_num = (avail < num) ? avail : num;
+
+	for (i = 0; i < dequeue_num; ++i) {
+		op = (q->ring_addr + ((q->sw_ring_tail + dequeued_cbs)
+			& q->sw_ring_wrap_mask))->req.op_addr;
+		if (op->turbo_enc.code_block_mode == 0)
+			ret = dequeue_enc_one_op_tb(q, &ops[i], dequeued_cbs,
+					&aq_dequeued);
+		else
+			ret = dequeue_enc_one_op_cb(q, &ops[i], dequeued_cbs,
+					&aq_dequeued);
+
+		if (ret < 0)
+			break;
+		dequeued_cbs += ret;
+	}
+
+	q->aq_dequeued += aq_dequeued;
+	q->sw_ring_tail += dequeued_cbs;
+
+	/* Update enqueue stats */
+	q_data->queue_stats.dequeued_count += i;
+
+	return i;
+}
+
 /* Dequeue LDPC encode operations from ACC100 device. */
 static uint16_t
 acc100_dequeue_ldpc_enc(struct rte_bbdev_queue_data *q_data,
@@ -2426,6 +3252,52 @@ 
 	return dequeued_cbs;
 }
 
+
+/* Dequeue decode operations from ACC100 device. */
+static uint16_t
+acc100_dequeue_dec(struct rte_bbdev_queue_data *q_data,
+		struct rte_bbdev_dec_op **ops, uint16_t num)
+{
+	struct acc100_queue *q = q_data->queue_private;
+	uint16_t dequeue_num;
+	uint32_t avail = q->sw_ring_head - q->sw_ring_tail;
+	uint32_t aq_dequeued = 0;
+	uint16_t i;
+	uint16_t dequeued_cbs = 0;
+	struct rte_bbdev_dec_op *op;
+	int ret;
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	if (unlikely(ops == 0 && q == NULL))
+		return 0;
+#endif
+
+	dequeue_num = (avail < num) ? avail : num;
+
+	for (i = 0; i < dequeue_num; ++i) {
+		op = (q->ring_addr + ((q->sw_ring_tail + dequeued_cbs)
+			& q->sw_ring_wrap_mask))->req.op_addr;
+		if (op->turbo_dec.code_block_mode == 0)
+			ret = dequeue_dec_one_op_tb(q, &ops[i], dequeued_cbs,
+					&aq_dequeued);
+		else
+			ret = dequeue_dec_one_op_cb(q_data, q, &ops[i],
+					dequeued_cbs, &aq_dequeued);
+
+		if (ret < 0)
+			break;
+		dequeued_cbs += ret;
+	}
+
+	q->aq_dequeued += aq_dequeued;
+	q->sw_ring_tail += dequeued_cbs;
+
+	/* Update enqueue stats */
+	q_data->queue_stats.dequeued_count += i;
+
+	return i;
+}
+
 /* Dequeue decode operations from ACC100 device. */
 static uint16_t
 acc100_dequeue_ldpc_dec(struct rte_bbdev_queue_data *q_data,
@@ -2479,6 +3351,10 @@ 
 	struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
 
 	dev->dev_ops = &acc100_bbdev_ops;
+	dev->enqueue_enc_ops = acc100_enqueue_enc;
+	dev->enqueue_dec_ops = acc100_enqueue_dec;
+	dev->dequeue_enc_ops = acc100_dequeue_enc;
+	dev->dequeue_dec_ops = acc100_dequeue_dec;
 	dev->enqueue_ldpc_enc_ops = acc100_enqueue_ldpc_enc;
 	dev->enqueue_ldpc_dec_ops = acc100_enqueue_ldpc_dec;
 	dev->dequeue_ldpc_enc_ops = acc100_dequeue_ldpc_enc;