From patchwork Tue Aug 18 23:04:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chautru, Nicolas" X-Patchwork-Id: 75649 X-Patchwork-Delegate: gakhil@marvell.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0301DA04AF; Wed, 19 Aug 2020 01:07:43 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 9AF391C0C2; Wed, 19 Aug 2020 01:06:54 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 37FF31C020 for ; Wed, 19 Aug 2020 01:06:47 +0200 (CEST) IronPort-SDR: xth0G+wfuwFwXzQvuZp6IaMFhkCE24CPYgY9ZvC6eTWAFgBc9K0fTifSQ4gdSrL9DNimjXR8QC XfnzTqbgVwKg== X-IronPort-AV: E=McAfee;i="6000,8403,9717"; a="154281361" X-IronPort-AV: E=Sophos;i="5.76,329,1592895600"; d="scan'208";a="154281361" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2020 16:06:44 -0700 IronPort-SDR: ta6Gj1HzQimWjTlr76PhqI+96o2NOnSZHU9kqpyU5A9bsui2r/o9byJCossNHiyKWiFsvf2Cyn yQtlz9ELBEAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,329,1592895600"; d="scan'208";a="441400705" Received: from skx-5gnr-sc12-4.sc.intel.com ([172.25.69.210]) by orsmga004.jf.intel.com with ESMTP; 18 Aug 2020 16:06:44 -0700 From: Nicolas Chautru To: dev@dpdk.org, akhil.goyal@nxp.com Cc: bruce.richardson@intel.com, Nicolas Chautru Date: Tue, 18 Aug 2020 16:04:49 -0700 Message-Id: <1597791894-37041-7-git-send-email-nicolas.chautru@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1597791894-37041-1-git-send-email-nicolas.chautru@intel.com> References: <1597791894-37041-1-git-send-email-nicolas.chautru@intel.com> Subject: [dpdk-dev] [PATCH v2 06/11] baseband/acc100: add HARQ loopback support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Additional support for HARQ memory loopback Signed-off-by: Nicolas Chautru --- drivers/baseband/acc100/rte_acc100_pmd.c | 158 +++++++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c index 5f32813..b44b2f5 100644 --- a/drivers/baseband/acc100/rte_acc100_pmd.c +++ b/drivers/baseband/acc100/rte_acc100_pmd.c @@ -658,6 +658,7 @@ RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE | RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE | #ifdef ACC100_EXT_MEM + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_LOOPBACK | RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE | RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE | #endif @@ -1480,12 +1481,169 @@ 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; + desc->req.word3 = 0; + desc->req.numCBs = 1; + + /* Null LLR input for Decoder */ + desc->req.data_ptrs[next_triplet].address = + q->lb_in_addr_phys; + desc->req.data_ptrs[next_triplet].blen = 2; + desc->req.data_ptrs[next_triplet].blkid = ACC100_DMA_BLKID_IN; + desc->req.data_ptrs[next_triplet].last = 0; + desc->req.data_ptrs[next_triplet].dma_ext = 0; + next_triplet++; + + /* HARQ Combine input from either Memory interface */ + if (!ddr_mem_in) { + next_triplet = acc100_dma_fill_blk_type_out(&desc->req, + op->ldpc_dec.harq_combined_input.data, + op->ldpc_dec.harq_combined_input.offset, + harq_dma_length_in, + next_triplet, + ACC100_DMA_BLKID_IN_HARQ); + } else { + desc->req.data_ptrs[next_triplet].address = + op->ldpc_dec.harq_combined_input.offset; + desc->req.data_ptrs[next_triplet].blen = + harq_dma_length_in; + desc->req.data_ptrs[next_triplet].blkid = + ACC100_DMA_BLKID_IN_HARQ; + desc->req.data_ptrs[next_triplet].dma_ext = 1; + next_triplet++; + } + desc->req.data_ptrs[next_triplet - 1].last = 1; + desc->req.m2dlen = next_triplet; + + /* Dropped decoder hard output */ + desc->req.data_ptrs[next_triplet].address = + q->lb_out_addr_phys; + desc->req.data_ptrs[next_triplet].blen = BYTES_IN_WORD; + desc->req.data_ptrs[next_triplet].blkid = ACC100_DMA_BLKID_OUT_HARD; + desc->req.data_ptrs[next_triplet].last = 0; + desc->req.data_ptrs[next_triplet].dma_ext = 0; + next_triplet++; + + /* HARQ Combine output to either Memory interface */ + if (check_bit(op->ldpc_dec.op_flags, + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE + )) { + desc->req.data_ptrs[next_triplet].address = + op->ldpc_dec.harq_combined_output.offset; + desc->req.data_ptrs[next_triplet].blen = + harq_dma_length_out; + desc->req.data_ptrs[next_triplet].blkid = + ACC100_DMA_BLKID_OUT_HARQ; + desc->req.data_ptrs[next_triplet].dma_ext = 1; + next_triplet++; + } else { + hq_output_head = op->ldpc_dec.harq_combined_output.data; + hq_output = op->ldpc_dec.harq_combined_output.data; + next_triplet = acc100_dma_fill_blk_type_out( + &desc->req, + op->ldpc_dec.harq_combined_output.data, + op->ldpc_dec.harq_combined_output.offset, + harq_dma_length_out, + next_triplet, + ACC100_DMA_BLKID_OUT_HARQ); + /* HARQ output */ + mbuf_append(hq_output_head, hq_output, harq_dma_length_out); + op->ldpc_dec.harq_combined_output.length = + harq_dma_length_out; + } + desc->req.data_ptrs[next_triplet - 1].last = 1; + desc->req.d2mlen = next_triplet - desc->req.m2dlen; + desc->req.op_addr = op; + + /* One CB (one op) was successfully prepared to enqueue */ + return 1; +} + /** Enqueue one decode operations for ACC100 device in CB mode */ static inline int enqueue_ldpc_dec_one_op_cb(struct acc100_queue *q, struct rte_bbdev_dec_op *op, uint16_t total_enqueued_cbs, bool same_op) { int ret; + if (unlikely(check_bit(op->ldpc_dec.op_flags, + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_LOOPBACK))) { + ret = harq_loopback(q, op, total_enqueued_cbs); + return ret; + } union acc100_dma_desc *desc; uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)