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baseband/acc200: add LDPC processing

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Added LDPC encode and decode processing functions.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Nicolas Chautru 2022-10-12 10:59:22 -07:00 committed by Akhil Goyal
parent 40e3adbdd3
commit e640f6cdfa
2 changed files with 1348 additions and 5 deletions
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84
drivers/baseband/acc/acc_common.h
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@ -1302,4 +1302,88 @@ acc_pci_remove(struct rte_pci_device *pci_dev)
return 0;
}
static inline void
acc_enqueue_status(struct rte_bbdev_queue_data *q_data,
enum rte_bbdev_enqueue_status status)
{
q_data->enqueue_status = status;
q_data->queue_stats.enqueue_status_count[status]++;
rte_acc_log(WARNING, "Enqueue Status: %s %#"PRIx64"",
rte_bbdev_enqueue_status_str(status),
q_data->queue_stats.enqueue_status_count[status]);
}
static inline void
acc_enqueue_invalid(struct rte_bbdev_queue_data *q_data)
{
acc_enqueue_status(q_data, RTE_BBDEV_ENQ_STATUS_INVALID_OP);
}
static inline void
acc_enqueue_ring_full(struct rte_bbdev_queue_data *q_data)
{
acc_enqueue_status(q_data, RTE_BBDEV_ENQ_STATUS_RING_FULL);
}
static inline void
acc_enqueue_queue_full(struct rte_bbdev_queue_data *q_data)
{
acc_enqueue_status(q_data, RTE_BBDEV_ENQ_STATUS_QUEUE_FULL);
}
/* Number of available descriptor in ring to enqueue */
static inline uint32_t
acc_ring_avail_enq(struct acc_queue *q)
{
return (q->sw_ring_depth - 1 + q->sw_ring_tail - q->sw_ring_head) & q->sw_ring_wrap_mask;
}
/* Number of available descriptor in ring to dequeue */
static inline uint32_t
acc_ring_avail_deq(struct acc_queue *q)
{
return (q->sw_ring_depth + q->sw_ring_head - q->sw_ring_tail) & q->sw_ring_wrap_mask;
}
/* Check room in AQ for the enqueues batches into Qmgr */
static inline int32_t
acc_aq_avail(struct rte_bbdev_queue_data *q_data, uint16_t num_ops)
{
struct acc_queue *q = q_data->queue_private;
int32_t aq_avail = q->aq_depth -
((q->aq_enqueued - q->aq_dequeued +
ACC_MAX_QUEUE_DEPTH) % ACC_MAX_QUEUE_DEPTH)
- (num_ops >> 7);
if (aq_avail <= 0)
acc_enqueue_queue_full(q_data);
return aq_avail;
}
/* Calculates number of CBs in processed encoder TB based on 'r' and input
* length.
*/
static inline uint8_t
get_num_cbs_in_tb_ldpc_enc(struct rte_bbdev_op_ldpc_enc *ldpc_enc)
{
uint8_t c, r, crc24_bits = 0;
uint16_t k = (ldpc_enc->basegraph == 1 ? 22 : 10) * ldpc_enc->z_c
- ldpc_enc->n_filler;
uint8_t cbs_in_tb = 0;
int32_t length;
length = ldpc_enc->input.length;
r = ldpc_enc->tb_params.r;
c = ldpc_enc->tb_params.c;
crc24_bits = 0;
if (check_bit(ldpc_enc->op_flags, RTE_BBDEV_LDPC_CRC_24B_ATTACH))
crc24_bits = 24;
while (length > 0 && r < c) {
length -= (k - crc24_bits) >> 3;
r++;
cbs_in_tb++;
}
return cbs_in_tb;
}
#endif /* _ACC_COMMON_H_ */

1269
drivers/baseband/acc/rte_acc200_pmd.c
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