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baseband/acc100: support LDPC transport block

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Added LDPC enqueue functions to handle transport blocks.

Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Hernan Vargas 2022-10-20 22:20:52 -07:00 committed by Akhil Goyal
parent 4afc627f32
commit c7847be75c
1 changed files with 163 additions and 1 deletions
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164
drivers/baseband/acc/rte_acc100_pmd.c
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@ -2165,6 +2165,56 @@ enqueue_ldpc_enc_n_op_cb(struct acc_queue *q, struct rte_bbdev_enc_op **ops,
return num;
}
/* Enqueue one encode operations for ACC100 device for a partial TB
* all codes blocks have same configuration multiplexed on the same descriptor.
*/
static inline void
enqueue_ldpc_enc_part_tb(struct acc_queue *q, struct rte_bbdev_enc_op *op,
uint16_t total_enqueued_descs, int16_t num_cbs, uint32_t e,
uint16_t in_len_bytes, uint32_t out_len_bytes, uint32_t *in_offset,
uint32_t *out_offset)
{
union acc_dma_desc *desc = NULL;
struct rte_mbuf *output_head, *output;
int i, next_triplet;
struct rte_bbdev_op_ldpc_enc *enc = &op->ldpc_enc;
uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_descs) & q->sw_ring_wrap_mask);
desc = q->ring_addr + desc_idx;
acc_fcw_le_fill(op, &desc->req.fcw_le, num_cbs, e);
/* This could be done at polling. */
acc_header_init(&desc->req);
desc->req.numCBs = num_cbs;
desc->req.m2dlen = 1 + num_cbs;
desc->req.d2mlen = num_cbs;
next_triplet = 1;
for (i = 0; i < num_cbs; i++) {
desc->req.data_ptrs[next_triplet].address =
rte_pktmbuf_iova_offset(enc->input.data, *in_offset);
*in_offset += in_len_bytes;
desc->req.data_ptrs[next_triplet].blen = in_len_bytes;
next_triplet++;
desc->req.data_ptrs[next_triplet].address =
rte_pktmbuf_iova_offset(enc->output.data, *out_offset);
*out_offset += out_len_bytes;
desc->req.data_ptrs[next_triplet].blen = out_len_bytes;
next_triplet++;
enc->output.length += out_len_bytes;
output_head = output = enc->output.data;
mbuf_append(output_head, output, out_len_bytes);
}
#ifdef RTE_LIBRTE_BBDEV_DEBUG
rte_memdump(stderr, "FCW", &desc->req.fcw_le,
sizeof(desc->req.fcw_le) - 8);
rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc));
#endif
}
/* Enqueue one encode operations for ACC100 device in CB mode */
static inline int
enqueue_ldpc_enc_one_op_cb(struct acc_queue *q, struct rte_bbdev_enc_op *op,
@ -2306,6 +2356,76 @@ enqueue_enc_one_op_tb(struct acc_queue *q, struct rte_bbdev_enc_op *op,
return current_enqueued_cbs;
}
/* Enqueue one encode operations for ACC100 device in TB mode.
* returns the number of descs used.
*/
static inline int
enqueue_ldpc_enc_one_op_tb(struct acc_queue *q, struct rte_bbdev_enc_op *op,
uint16_t enq_descs, uint8_t cbs_in_tb)
{
#ifndef RTE_LIBRTE_BBDEV_SKIP_VALIDATE
if (validate_ldpc_enc_op(op, q) == -1) {
rte_bbdev_log(ERR, "LDPC encoder validation failed");
return -EINVAL;
}
#endif
uint8_t num_a, num_b;
uint16_t desc_idx;
uint8_t r = op->ldpc_enc.tb_params.r;
uint8_t cab = op->ldpc_enc.tb_params.cab;
union acc_dma_desc *desc;
uint16_t init_enq_descs = enq_descs;
uint16_t input_len_B = ((op->ldpc_enc.basegraph == 1 ? 22 : 10) *
op->ldpc_enc.z_c - op->ldpc_enc.n_filler) >> 3;
uint32_t in_offset = 0, out_offset = 0;
uint16_t return_descs;
if (check_bit(op->ldpc_enc.op_flags, RTE_BBDEV_LDPC_CRC_24B_ATTACH))
input_len_B -= 3;
if (r < cab) {
num_a = cab - r;
num_b = cbs_in_tb - cab;
} else {
num_a = 0;
num_b = cbs_in_tb - r;
}
while (num_a > 0) {
uint32_t e = op->ldpc_enc.tb_params.ea;
uint32_t out_len_bytes = (e + 7) >> 3;
uint8_t enq = RTE_MIN(num_a, ACC_MUX_5GDL_DESC);
num_a -= enq;
enqueue_ldpc_enc_part_tb(q, op, enq_descs, enq, e, input_len_B,
out_len_bytes, &in_offset, &out_offset);
enq_descs++;
}
while (num_b > 0) {
uint32_t e = op->ldpc_enc.tb_params.eb;
uint32_t out_len_bytes = (e + 7) >> 3;
uint8_t enq = RTE_MIN(num_b, ACC_MUX_5GDL_DESC);
num_b -= enq;
enqueue_ldpc_enc_part_tb(q, op, enq_descs, enq, e, input_len_B,
out_len_bytes, &in_offset, &out_offset);
enq_descs++;
}
return_descs = enq_descs - init_enq_descs;
/* Keep total number of CBs in first TB. */
desc_idx = ((q->sw_ring_head + init_enq_descs) & q->sw_ring_wrap_mask);
desc = q->ring_addr + desc_idx;
desc->req.cbs_in_tb = return_descs; /** Actual number of descriptors. */
desc->req.op_addr = op;
/* Set SDone on last CB descriptor for TB mode. */
desc_idx = ((q->sw_ring_head + enq_descs - 1) & q->sw_ring_wrap_mask);
desc = q->ring_addr + desc_idx;
desc->req.sdone_enable = 1;
desc->req.irq_enable = q->irq_enable;
desc->req.op_addr = op;
return return_descs;
}
#ifndef RTE_LIBRTE_BBDEV_SKIP_VALIDATE
/* Validates turbo decoder parameters */
static inline int
@ -2882,6 +3002,10 @@ enqueue_dec_one_op_tb(struct acc_queue *q, struct rte_bbdev_dec_op *op,
#ifndef RTE_LIBRTE_BBDEV_SKIP_VALIDATE
/* Validate op structure */
if (cbs_in_tb == 0) {
rte_bbdev_log(ERR, "Turbo decoder invalid number of CBs");
return -EINVAL;
}
if (validate_dec_op(op, q) == -1) {
rte_bbdev_log(ERR, "Turbo decoder validation rejected");
return -EINVAL;
@ -3103,6 +3227,44 @@ acc100_enqueue_enc_tb(struct rte_bbdev_queue_data *q_data,
return i;
}
/* Enqueue LDPC encode operations for ACC100 device in TB mode. */
static uint16_t
acc100_enqueue_ldpc_enc_tb(struct rte_bbdev_queue_data *q_data,
struct rte_bbdev_enc_op **ops, uint16_t num)
{
struct acc_queue *q = q_data->queue_private;
int32_t avail = acc_ring_avail_enq(q);
uint16_t i, enqueued_descs = 0;
uint8_t cbs_in_tb;
int descs_used;
for (i = 0; i < num; ++i) {
cbs_in_tb = get_num_cbs_in_tb_ldpc_enc(&ops[i]->ldpc_enc);
/* Check if there are available space for further processing. */
if (unlikely(avail - cbs_in_tb < 0)) {
acc_enqueue_ring_full(q_data);
break;
}
descs_used = enqueue_ldpc_enc_one_op_tb(q, ops[i], enqueued_descs, cbs_in_tb);
if (descs_used < 0) {
acc_enqueue_invalid(q_data);
break;
}
enqueued_descs += descs_used;
avail -= descs_used;
}
if (unlikely(enqueued_descs == 0))
return 0; /* Nothing to enqueue. */
acc_dma_enqueue(q, enqueued_descs, &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,
@ -3126,7 +3288,7 @@ acc100_enqueue_ldpc_enc(struct rte_bbdev_queue_data *q_data,
if (unlikely((aq_avail <= 0) || (num == 0)))
return 0;
if (ops[0]->ldpc_enc.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
return acc100_enqueue_enc_tb(q_data, ops, num);
return acc100_enqueue_ldpc_enc_tb(q_data, ops, num);
else
return acc100_enqueue_ldpc_enc_cb(q_data, ops, num);
}