d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

baseband/acc200: support FFT

Browse Source 
Added functions and capability for FFT processing

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 10:59:24 -07:00 committed by Akhil Goyal
parent bec597b78a
commit 437e396414
1 changed files with 233 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

235
drivers/baseband/acc/rte_acc200_pmd.c
View File

@ -727,6 +727,21 @@ 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()
};
@ -749,12 +764,13 @@ 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];
@ -2738,6 +2754,219 @@ 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;
struct rte_mbuf *input, *output;
uint32_t in_offset, out_offset;
struct acc_fcw_fft *fcw;
desc_idx = (q->sw_ring_head + total_enqueued_cbs) & q->sw_ring_wrap_mask;
desc = q->ring_addr + desc_idx;
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)
@ -2753,6 +2982,8 @@ 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,