From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0401EA0548; Tue, 11 Oct 2022 21:00:10 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 53BC042C58; Tue, 11 Oct 2022 20:57:50 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id F02FA42BE3 for ; Tue, 11 Oct 2022 20:57:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665514654; x=1697050654; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kJECiVDrbGHfGVNhRRGjcux/NRz6p5dcmhM9xw7sTEM=; b=P9SLBOw2XPYZs1rRSa9L1N5X2tfCd1T+JZJmgWwH9ioaONtjzp5Uwx3L +fFamma+IeFANOC93nRPWAdtW5q45it0BxebLJrZVxbTLnZkX2kRBQwHP WUOJk6GpzqhbaonZ9z3e/HlEAypX/XjXlMnUDDeZ/kxJpsEz4Nxjv+7/G Q2HzZ1h5dk4O5/+El8n3UUhi25Lnx58m4FDpp4LsNOwDxw9le4Tl+vLGJ 2LguvuEQm7t7It9fgLFUKJLtFiagLx9h1ThG6c6tbMYCqsVMyXtsKO9qk ootrZrV32fko0Jcw58LLlkvECVvjcmR9xatTo+FJf5INy4VXe9LyYDyn1 g==; X-IronPort-AV: E=McAfee;i="6500,9779,10497"; a="284981668" X-IronPort-AV: E=Sophos;i="5.95,177,1661842800"; d="scan'208";a="284981668" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2022 11:57:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10497"; a="604261602" X-IronPort-AV: E=Sophos;i="5.95,177,1661842800"; d="scan'208";a="604261602" Received: from unknown (HELO csl-npg-qt0.la.intel.com) ([10.233.181.103]) by orsmga006.jf.intel.com with ESMTP; 11 Oct 2022 11:57:33 -0700 From: Hernan Vargas To: dev@dpdk.org, gakhil@marvell.com, trix@redhat.com, maxime.coquelin@redhat.com Cc: nicolas.chautru@intel.com, qi.z.zhang@intel.com, Hernan Vargas Subject: [PATCH v3 29/30] baseband/acc100: add workaround for deRM corner cases Date: Tue, 11 Oct 2022 19:53:45 -0700 Message-Id: <20221012025346.204394-30-hernan.vargas@intel.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20221012025346.204394-1-hernan.vargas@intel.com> References: <20221012025346.204394-1-hernan.vargas@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add function to support de-ratematch pre-processing for SW corner cases. Signed-off-by: Hernan Vargas --- drivers/baseband/acc/acc_common.h | 8 ++ drivers/baseband/acc/meson.build | 21 +++++ drivers/baseband/acc/rte_acc100_pmd.c | 108 +++++++++++++++++++++++++- 3 files changed, 134 insertions(+), 3 deletions(-) diff --git a/drivers/baseband/acc/acc_common.h b/drivers/baseband/acc/acc_common.h index 5a9929c336..4b947280c9 100644 --- a/drivers/baseband/acc/acc_common.h +++ b/drivers/baseband/acc/acc_common.h @@ -122,6 +122,14 @@ #define ACC_HARQ_ALIGN_64B 64 #define ACC_MAX_ZC 384 +/* De-ratematch code rate limitation when padding is required */ +#define ACC_LIM_03 2 /* 0.03 */ +#define ACC_LIM_09 6 /* 0.09 */ +#define ACC_LIM_14 9 /* 0.14 */ +#define ACC_LIM_21 14 /* 0.21 */ +#define ACC_LIM_31 20 /* 0.31 */ +#define ACC_MAX_E (128 * 1024 - 2) + /* Helper macro for logging */ #define rte_acc_log(level, fmt, ...) \ rte_log(RTE_LOG_ ## level, RTE_LOG_NOTICE, fmt "\n", \ diff --git a/drivers/baseband/acc/meson.build b/drivers/baseband/acc/meson.build index bece3a6e48..b147569d7e 100644 --- a/drivers/baseband/acc/meson.build +++ b/drivers/baseband/acc/meson.build @@ -1,6 +1,27 @@ # SPDX-License-Identifier: BSD-3-Clause # Copyright(c) 2020 Intel Corporation +# Check for FlexRAN SDK libraries +dep_dec5g = dependency('flexran_sdk_ldpc_decoder_5gnr', required: false) + +if dep_dec5g.found() + ext_deps += cc.find_library('libstdc++', required: true) + ext_deps += cc.find_library('libirc', required: true) + ext_deps += cc.find_library('libimf', required: true) + ext_deps += cc.find_library('libipps', required: true) + ext_deps += cc.find_library('libsvml', required: true) + ext_deps += dep_dec5g + ext_deps += dependency('flexran_sdk_ldpc_encoder_5gnr', required: true) + ext_deps += dependency('flexran_sdk_LDPC_ratematch_5gnr', required: true) + ext_deps += dependency('flexran_sdk_rate_dematching_5gnr', required: true) + ext_deps += dependency('flexran_sdk_turbo', required: true) + ext_deps += dependency('flexran_sdk_crc', required: true) + ext_deps += dependency('flexran_sdk_rate_matching', required: true) + ext_deps += dependency('flexran_sdk_common', required: true) + cflags += ['-DRTE_BBDEV_SDK_AVX2'] + cflags += ['-DRTE_BBDEV_SDK_AVX512'] +endif + deps += ['bbdev', 'bus_pci'] sources = files('rte_acc100_pmd.c', 'rte_acc200_pmd.c') diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c index f93fd885a3..44fd0e9ad7 100644 --- a/drivers/baseband/acc/rte_acc100_pmd.c +++ b/drivers/baseband/acc/rte_acc100_pmd.c @@ -24,6 +24,10 @@ #include "acc100_pmd.h" #include "acc101_pmd.h" +#ifdef RTE_BBDEV_SDK_AVX512 +#include +#endif + #ifdef RTE_LIBRTE_BBDEV_DEBUG RTE_LOG_REGISTER_DEFAULT(acc100_logtype, DEBUG); #else @@ -748,6 +752,14 @@ acc100_queue_setup(struct rte_bbdev *dev, uint16_t queue_id, ret = -ENOMEM; goto free_lb_out; } + q->derm_buffer = rte_zmalloc_socket(dev->device->driver->name, + RTE_BBDEV_TURBO_MAX_CB_SIZE * 10, + RTE_CACHE_LINE_SIZE, conf->socket); + if (q->derm_buffer == NULL) { + rte_bbdev_log(ERR, "Failed to allocate derm_buffer memory"); + ret = -ENOMEM; + goto free_companion_ring_addr; + } /* * Software queue ring wraps synchronously with the HW when it reaches @@ -768,7 +780,7 @@ acc100_queue_setup(struct rte_bbdev *dev, uint16_t queue_id, q_idx = acc100_find_free_queue_idx(dev, conf); if (q_idx == -1) { ret = -EINVAL; - goto free_companion_ring_addr; + goto free_derm_buffer; } q->qgrp_id = (q_idx >> ACC100_GRP_ID_SHIFT) & 0xF; @@ -796,6 +808,9 @@ acc100_queue_setup(struct rte_bbdev *dev, uint16_t queue_id, dev->data->queues[queue_id].queue_private = q; return 0; +free_derm_buffer: + rte_free(q->derm_buffer); + q->derm_buffer = NULL; free_companion_ring_addr: rte_free(q->companion_ring_addr); q->companion_ring_addr = NULL; @@ -882,6 +897,7 @@ acc100_queue_release(struct rte_bbdev *dev, uint16_t q_id) /* Mark the Queue as un-assigned */ d->q_assigned_bit_map[q->qgrp_id] &= (0xFFFFFFFFFFFFFFFF - (uint64_t) (1 << q->aq_id)); + rte_free(q->derm_buffer); rte_free(q->companion_ring_addr); rte_free(q->lb_in); rte_free(q->lb_out); @@ -3102,10 +3118,44 @@ harq_loopback(struct acc_queue *q, struct rte_bbdev_dec_op *op, return 1; } +/** Assess whether a work around is required for the deRM corner cases */ +static inline bool +derm_workaround_required(struct rte_bbdev_op_ldpc_dec *ldpc_dec, struct acc_queue *q) +{ + if (!is_acc100(q)) + return false; + int32_t e = ldpc_dec->cb_params.e; + int q_m = ldpc_dec->q_m; + int z_c = ldpc_dec->z_c; + int K = (ldpc_dec->basegraph == 1 ? ACC_K_ZC_1 : ACC_K_ZC_2) + * z_c; + + bool required = false; + if (ldpc_dec->basegraph == 1) { + if ((q_m == 4) && (z_c >= 320) && (e * ACC_LIM_31 > K * 64)) + required = true; + else if ((e * ACC_LIM_21 > K * 64)) + required = true; + } else { + if (q_m <= 2) { + if ((z_c >= 208) && (e * ACC_LIM_09 > K * 64)) + required = true; + else if ((z_c < 208) && (e * ACC_LIM_03 > K * 64)) + required = true; + } else if (e * ACC_LIM_14 > K * 64) + required = true; + } + if (required) + rte_bbdev_log(INFO, "Running deRM pre-processing in SW"); + + return required; +} + /** Enqueue one decode operations for ACC100 device in CB mode */ static inline int enqueue_ldpc_dec_one_op_cb(struct acc_queue *q, struct rte_bbdev_dec_op *op, - uint16_t total_enqueued_cbs, bool same_op) + uint16_t total_enqueued_cbs, bool same_op, + struct rte_bbdev_queue_data *q_data) { int ret; if (unlikely(check_bit(op->ldpc_dec.op_flags, @@ -3163,6 +3213,58 @@ enqueue_ldpc_dec_one_op_cb(struct acc_queue *q, struct rte_bbdev_dec_op *op, } else { struct acc_fcw_ld *fcw; uint32_t seg_total_left; + + if (derm_workaround_required(&op->ldpc_dec, q)) { + #ifdef RTE_BBDEV_SDK_AVX512 + struct rte_bbdev_op_ldpc_dec *dec = &op->ldpc_dec; + struct bblib_rate_dematching_5gnr_request derm_req; + struct bblib_rate_dematching_5gnr_response derm_resp; + uint8_t *in; + + /* Checking input size is matching with E */ + if (dec->input.data->data_len < dec->cb_params.e) { + rte_bbdev_log(ERR, "deRM: Input size mismatch"); + return -EFAULT; + } + /* Run first deRM processing in SW */ + in = rte_pktmbuf_mtod_offset(dec->input.data, uint8_t *, in_offset); + derm_req.p_in = (int8_t *) in; + derm_req.p_harq = (int8_t *) q->derm_buffer; + derm_req.base_graph = dec->basegraph; + derm_req.zc = dec->z_c; + derm_req.ncb = dec->n_cb; + derm_req.e = dec->cb_params.e; + if (derm_req.e > ACC_MAX_E) { + rte_bbdev_log(WARNING, + "deRM: E %d > %d max", + derm_req.e, ACC_MAX_E); + derm_req.e = ACC_MAX_E; + } + derm_req.k0 = 0; /* Actual output from SDK */ + derm_req.isretx = false; + derm_req.rvid = dec->rv_index; + derm_req.modulation_order = dec->q_m; + derm_req.start_null_index = + (dec->basegraph == 1 ? 22 : 10) + * dec->z_c - 2 * dec->z_c + - dec->n_filler; + derm_req.num_of_null = dec->n_filler; + bblib_rate_dematching_5gnr(&derm_req, &derm_resp); + /* Force back the HW DeRM */ + dec->q_m = 1; + dec->cb_params.e = dec->n_cb - dec->n_filler; + dec->rv_index = 0; + rte_memcpy(in, q->derm_buffer, dec->cb_params.e); + /* Capture counter when pre-processing is used */ + q_data->queue_stats.enqueue_warn_count++; + #else + RTE_SET_USED(q_data); + rte_bbdev_log(WARNING, + "Corner case may require deRM pre-processing in SDK" + ); + #endif + } + fcw = &desc->req.fcw_ld; q->d->fcw_ld_fill(op, fcw, harq_layout); @@ -3734,7 +3836,7 @@ acc100_enqueue_ldpc_dec_cb(struct rte_bbdev_queue_data *q_data, ops[i]->ldpc_dec.n_cb, ops[i]->ldpc_dec.q_m, ops[i]->ldpc_dec.n_filler, ops[i]->ldpc_dec.cb_params.e, same_op); - ret = enqueue_ldpc_dec_one_op_cb(q, ops[i], i, same_op); + ret = enqueue_ldpc_dec_one_op_cb(q, ops[i], i, same_op, q_data); if (ret < 0) { acc_enqueue_invalid(q_data); break; -- 2.37.1