On 9/24/22 02:50, Nicolas Chautru wrote:
From: Nic Chautru <nicolas.chau...@intel.com> Add functions and capability for FFT processing Signed-off-by: Nic Chautru <nicolas.chau...@intel.com> --- drivers/baseband/acc/rte_acc200_pmd.c | 242 +++++++++++++++++++++++++- 1 file changed, 240 insertions(+), 2 deletions(-) diff --git a/drivers/baseband/acc/rte_acc200_pmd.c b/drivers/baseband/acc/rte_acc200_pmd.c index e8901c60d6..7f2cd71166 100644 --- a/drivers/baseband/acc/rte_acc200_pmd.c +++ b/drivers/baseband/acc/rte_acc200_pmd.c @@ -735,6 +735,21 @@ acc200_dev_info_get(struct rte_bbdev *dev, .num_buffers_soft_out = 0, } }, + { + .type = RTE_BBDEV_OP_FFT, + .cap.fft = { + .capability_flags = + RTE_BBDEV_FFT_WINDOWING | + RTE_BBDEV_FFT_CS_ADJUSTMENT | + RTE_BBDEV_FFT_DFT_BYPASS | + RTE_BBDEV_FFT_IDFT_BYPASS | + RTE_BBDEV_FFT_WINDOWING_BYPASS, + .num_buffers_src = + RTE_BBDEV_LDPC_MAX_CODE_BLOCKS, + .num_buffers_dst = + RTE_BBDEV_LDPC_MAX_CODE_BLOCKS, + } + }, RTE_BBDEV_END_OF_CAPABILITIES_LIST() };@@ -757,12 +772,13 @@ acc200_dev_info_get(struct rte_bbdev *dev,d->acc_conf.q_ul_5g.num_qgroups; dev_info->num_queues[RTE_BBDEV_OP_LDPC_ENC] = d->acc_conf.q_dl_5g.num_aqs_per_groups * d->acc_conf.q_dl_5g.num_qgroups; - dev_info->num_queues[RTE_BBDEV_OP_FFT] = 0; + dev_info->num_queues[RTE_BBDEV_OP_FFT] = d->acc_conf.q_fft.num_aqs_per_groups * + d->acc_conf.q_fft.num_qgroups; dev_info->queue_priority[RTE_BBDEV_OP_TURBO_DEC] = d->acc_conf.q_ul_4g.num_qgroups; dev_info->queue_priority[RTE_BBDEV_OP_TURBO_ENC] = d->acc_conf.q_dl_4g.num_qgroups; dev_info->queue_priority[RTE_BBDEV_OP_LDPC_DEC] = d->acc_conf.q_ul_5g.num_qgroups; dev_info->queue_priority[RTE_BBDEV_OP_LDPC_ENC] = d->acc_conf.q_dl_5g.num_qgroups; - dev_info->queue_priority[RTE_BBDEV_OP_FFT] = 0; + dev_info->queue_priority[RTE_BBDEV_OP_FFT] = d->acc_conf.q_fft.num_qgroups; dev_info->max_num_queues = 0; for (i = RTE_BBDEV_OP_NONE; i <= RTE_BBDEV_OP_FFT; i++) dev_info->max_num_queues += dev_info->num_queues[i]; @@ -2902,6 +2918,226 @@ acc200_dequeue_ldpc_dec(struct rte_bbdev_queue_data *q_data, return i; }+/* Fill in a frame control word for FFT processing. */+static inline void +acc200_fcw_fft_fill(struct rte_bbdev_fft_op *op, struct acc_fcw_fft *fcw) +{ + fcw->in_frame_size = op->fft.input_sequence_size; + fcw->leading_pad_size = op->fft.input_leading_padding; + fcw->out_frame_size = op->fft.output_sequence_size; + fcw->leading_depad_size = op->fft.output_leading_depadding; + fcw->cs_window_sel = op->fft.window_index[0] + + (op->fft.window_index[1] << 8) + + (op->fft.window_index[2] << 16) + + (op->fft.window_index[3] << 24); + fcw->cs_window_sel2 = op->fft.window_index[4] + + (op->fft.window_index[5] << 8); + fcw->cs_enable_bmap = op->fft.cs_bitmap; + fcw->num_antennas = op->fft.num_antennas_log2; + fcw->idft_size = op->fft.idft_log2; + fcw->dft_size = op->fft.dft_log2; + fcw->cs_offset = op->fft.cs_time_adjustment; + fcw->idft_shift = op->fft.idft_shift; + fcw->dft_shift = op->fft.dft_shift; + fcw->cs_multiplier = op->fft.ncs_reciprocal; + if (check_bit(op->fft.op_flags, + RTE_BBDEV_FFT_IDFT_BYPASS)) { + if (check_bit(op->fft.op_flags, + RTE_BBDEV_FFT_WINDOWING_BYPASS)) + fcw->bypass = 2; + else + fcw->bypass = 1; + } else if (check_bit(op->fft.op_flags, + RTE_BBDEV_FFT_DFT_BYPASS)) + fcw->bypass = 3; + else + fcw->bypass = 0; +} + +static inline int +acc200_dma_desc_fft_fill(struct rte_bbdev_fft_op *op, + struct acc_dma_req_desc *desc, + struct rte_mbuf *input, struct rte_mbuf *output, + uint32_t *in_offset, uint32_t *out_offset) +{ + /* FCW already done */ + acc_header_init(desc); + desc->data_ptrs[1].address = + rte_pktmbuf_iova_offset(input, *in_offset); + desc->data_ptrs[1].blen = op->fft.input_sequence_size * 4; + desc->data_ptrs[1].blkid = ACC_DMA_BLKID_IN; + desc->data_ptrs[1].last = 1; + desc->data_ptrs[1].dma_ext = 0; + desc->data_ptrs[2].address = + rte_pktmbuf_iova_offset(output, *out_offset); + desc->data_ptrs[2].blen = op->fft.output_sequence_size * 4; + desc->data_ptrs[2].blkid = ACC_DMA_BLKID_OUT_HARD; + desc->data_ptrs[2].last = 1; + desc->data_ptrs[2].dma_ext = 0; + desc->m2dlen = 2; + desc->d2mlen = 1; + desc->ib_ant_offset = op->fft.input_sequence_size; + desc->num_ant = op->fft.num_antennas_log2 - 3; + int num_cs = 0, i; + for (i = 0; i < 12; i++) + if (check_bit(op->fft.cs_bitmap, 1 << i)) + num_cs++; + desc->num_cs = num_cs; + desc->ob_cyc_offset = op->fft.output_sequence_size; + desc->ob_ant_offset = op->fft.output_sequence_size * num_cs; + desc->op_addr = op; + return 0; +} + + +/** Enqueue one FFT operation for ACC200 device*/ +static inline int +enqueue_fft_one_op(struct acc_queue *q, struct rte_bbdev_fft_op *op, + uint16_t total_enqueued_cbs) +{ + union acc_dma_desc *desc; + uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs) & q->sw_ring_wrap_mask); + desc = q->ring_addr + desc_idx;
Don't mix declarations & code.
+ struct rte_mbuf *input, *output; + uint32_t in_offset, out_offset; + struct acc_fcw_fft *fcw; + + input = op->fft.base_input.data; + output = op->fft.base_output.data; + in_offset = op->fft.base_input.offset; + out_offset = op->fft.base_output.offset; + fcw = &desc->req.fcw_fft; + + acc200_fcw_fft_fill(op, fcw); + acc200_dma_desc_fft_fill(op, &desc->req, input, output, &in_offset, &out_offset); +#ifdef RTE_LIBRTE_BBDEV_DEBUG + rte_memdump(stderr, "FCW", &desc->req.fcw_fft, + sizeof(desc->req.fcw_fft)); + rte_memdump(stderr, "Req Desc.", desc, sizeof(*desc)); +#endif + return 1; +} + +/* Enqueue decode operations for ACC200 device. */ +static uint16_t +acc200_enqueue_fft(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_fft_op **ops, uint16_t num) +{ + struct acc_queue *q; + int32_t aq_avail, avail; + uint16_t i; + union acc_dma_desc *desc; + int ret; + + aq_avail = acc_aq_avail(q_data, num); + if (unlikely((aq_avail <= 0) || (num == 0))) + return 0; + q = q_data->queue_private; + avail = acc_ring_avail_enq(q); + + for (i = 0; i < num; ++i) { + /* Check if there are available space for further processing */ + if (unlikely(avail < 1)) + break; + avail -= 1; + ret = enqueue_fft_one_op(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; + acc_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; +} + + +/* Dequeue one FFT operations from ACC200 device */ +static inline int +dequeue_fft_one_op(struct rte_bbdev_queue_data *q_data, + struct acc_queue *q, struct rte_bbdev_fft_op **ref_op, + uint16_t dequeued_cbs, uint32_t *aq_dequeued) +{ + union acc_dma_desc *desc, atom_desc; + union acc_dma_rsp_desc rsp; + struct rte_bbdev_fft_op *op; + + desc = q->ring_addr + ((q->sw_ring_tail + dequeued_cbs) + & q->sw_ring_wrap_mask); + atom_desc.atom_hdr = __atomic_load_n((uint64_t *)desc, + __ATOMIC_RELAXED); + + /* Check fdone bit */ + if (!(atom_desc.rsp.val & ACC_FDONE)) + return -1; + + rsp.val = atom_desc.rsp.val; +#ifdef RTE_LIBRTE_BBDEV_DEBUG + rte_memdump(stderr, "Resp", &desc->rsp.val, + sizeof(desc->rsp.val)); +#endif + /* Dequeue */ + op = desc->req.op_addr; + + /* Clearing status, it will be set based on response */ + op->status = 0; + op->status |= rsp.input_err << RTE_BBDEV_DATA_ERROR; + op->status |= rsp.dma_err << RTE_BBDEV_DRV_ERROR; + op->status |= rsp.fcw_err << RTE_BBDEV_DRV_ERROR; + if (op->status != 0) + q_data->queue_stats.dequeue_err_count++; + + /* Check if this is the last desc in batch (Atomic Queue) */ + if (desc->req.last_desc_in_batch) { + (*aq_dequeued)++; + desc->req.last_desc_in_batch = 0; + } + desc->rsp.val = ACC_DMA_DESC_TYPE; + desc->rsp.add_info_0 = 0; + *ref_op = op; + /* One CB (op) was successfully dequeued */ + return 1; +} + + +/* Dequeue FFT operations from ACC200 device. */ +static uint16_t +acc200_dequeue_fft(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_fft_op **ops, uint16_t num) +{ + struct acc_queue *q = q_data->queue_private; + uint16_t dequeue_num, i, dequeued_cbs = 0; + uint32_t avail = acc_ring_avail_deq(q); + uint32_t aq_dequeued = 0; + int ret; + + dequeue_num = RTE_MIN(avail, num); + + for (i = 0; i < dequeue_num; ++i) { + ret = dequeue_fft_one_op(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; +} + /* Initialization Function */ static void acc200_bbdev_init(struct rte_bbdev *dev, struct rte_pci_driver *drv) @@ -2917,6 +3153,8 @@ acc200_bbdev_init(struct rte_bbdev *dev, struct rte_pci_driver *drv) dev->enqueue_ldpc_dec_ops = acc200_enqueue_ldpc_dec; dev->dequeue_ldpc_enc_ops = acc200_dequeue_ldpc_enc; dev->dequeue_ldpc_dec_ops = acc200_dequeue_ldpc_dec; + dev->enqueue_fft_ops = acc200_enqueue_fft; + dev->dequeue_fft_ops = acc200_dequeue_fft;((struct acc_device *) dev->data->dev_private)->pf_device =!strcmp(drv->driver.name,
