From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 416D4A0573; Wed, 4 Mar 2020 19:55:55 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6ADB51BFF1; Wed, 4 Mar 2020 19:55:22 +0100 (CET) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id D630C2BB8 for ; Wed, 4 Mar 2020 19:55:14 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Mar 2020 10:55:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,514,1574150400"; d="scan'208";a="274778252" Received: from skx-5gnr-sc12-4.sc.intel.com ([172.25.69.210]) by fmsmga002.fm.intel.com with ESMTP; 04 Mar 2020 10:55:11 -0800 From: Nicolas Chautru To: thomas@monjalon.net, akhil.goyal@nxp.com, dev@dpdk.org Cc: ferruh.yigit@intel.com, Nic Chautru Date: Wed, 4 Mar 2020 10:54:52 -0800 Message-Id: <1583348102-13253-5-git-send-email-nicolas.chautru@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1583348102-13253-1-git-send-email-nicolas.chautru@intel.com> References: <1582778348-113547-15-git-send-email-nicolas.chautru@intel.com> <1583348102-13253-1-git-send-email-nicolas.chautru@intel.com> Subject: [dpdk-dev] [PATCH v3 04/14] baseband/turbo_sw: support large size code block 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" From: Nic Chautru This is to support cases when the input data for decoding a code block is larger than 64kB and would not fit as a contiguous block of data into one mbuf. In that case the length from the opearation supersedes the mbug default structure. Signed-off-by: Nic Chautru --- app/test-bbdev/test_bbdev_perf.c | 40 +++++++++++++++++++----- doc/guides/rel_notes/release_20_05.rst | 6 ++++ drivers/baseband/turbo_sw/bbdev_turbo_software.c | 11 ++++--- 3 files changed, 45 insertions(+), 12 deletions(-) diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c index d8db58e..d46966d 100644 --- a/app/test-bbdev/test_bbdev_perf.c +++ b/app/test-bbdev/test_bbdev_perf.c @@ -764,6 +764,7 @@ typedef int (test_case_function)(struct active_device *ad, { int ret; unsigned int i, j; + bool large_input = false; for (i = 0; i < n; ++i) { char *data; @@ -774,24 +775,47 @@ typedef int (test_case_function)(struct active_device *ad, op_type, n * ref_entries->nb_segments, mbuf_pool->size); - TEST_ASSERT_SUCCESS(((seg->length + RTE_PKTMBUF_HEADROOM) > - (uint32_t)UINT16_MAX), - "Given data is bigger than allowed mbuf segment size"); - + if (seg->length > 64000) { + /* + * Special case when DPDK mbuf cannot handle + * the required input size + */ + printf("Warning: Larger input size than DPDK mbuf %d\n", + seg->length); + large_input = true; + } else { + TEST_ASSERT_SUCCESS( + ((seg->length + RTE_PKTMBUF_HEADROOM) + > (uint32_t)UINT16_MAX), + "Given data is bigger than allowed mbuf segment size" + ); + } bufs[i].data = m_head; bufs[i].offset = 0; bufs[i].length = 0; if ((op_type == DATA_INPUT) || (op_type == DATA_HARQ_INPUT)) { - data = rte_pktmbuf_append(m_head, seg->length); - TEST_ASSERT_NOT_NULL(data, + if ((op_type == DATA_INPUT) && large_input) { + /* Allocate a fake overused mbuf */ + data = rte_malloc(NULL, 128 * 1024, 0); + memcpy(data, seg->addr, seg->length); + m_head->buf_addr = data; + m_head->buf_iova = rte_mem_virt2phy(data); + m_head->data_off = 0; + m_head->data_len = seg->length; + } else { + data = rte_pktmbuf_append(m_head, seg->length); + TEST_ASSERT_NOT_NULL(data, "Couldn't append %u bytes to mbuf from %d data type mbuf pool", seg->length, op_type); - TEST_ASSERT(data == RTE_PTR_ALIGN(data, min_alignment), + TEST_ASSERT(data == RTE_PTR_ALIGN( + data, min_alignment), "Data addr in mbuf (%p) is not aligned to device min alignment (%u)", data, min_alignment); - rte_memcpy(data, seg->addr, seg->length); + rte_memcpy(data, seg->addr, seg->length); + } + bufs[i].length += seg->length; for (j = 1; j < ref_entries->nb_segments; ++j) { diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst index 2190eaf..d6c3dfb 100644 --- a/doc/guides/rel_notes/release_20_05.rst +++ b/doc/guides/rel_notes/release_20_05.rst @@ -56,6 +56,12 @@ New Features Also, make sure to start the actual text at the margin. ========================================================= +* **Updated the TURBO_SW bbdev PMD.** + + Updated the ``turbo_sw`` bbdev driver with changes including: + + * Support for large size code block not fitting in one mbuf segment. + * Exposes the accurate LLR decimal assumption. Removed Items ------------- diff --git a/drivers/baseband/turbo_sw/bbdev_turbo_software.c b/drivers/baseband/turbo_sw/bbdev_turbo_software.c index 5ca8ca1..ea3fecb 100644 --- a/drivers/baseband/turbo_sw/bbdev_turbo_software.c +++ b/drivers/baseband/turbo_sw/bbdev_turbo_software.c @@ -1335,7 +1335,7 @@ struct turbo_sw_queue { static inline void process_ldpc_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op, - uint8_t c, uint16_t out_length, uint16_t e, + uint8_t c, uint16_t out_length, uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out_head, struct rte_mbuf *m_out, struct rte_mbuf *m_harq_in, @@ -1617,8 +1617,8 @@ struct turbo_sw_queue { struct rte_bbdev_stats *queue_stats) { uint8_t c, r = 0; - uint16_t e, out_length; - uint16_t crc24_overlap = 0; + uint32_t e; + uint16_t out_length, crc24_overlap = 0; struct rte_bbdev_op_ldpc_dec *dec = &op->ldpc_dec; struct rte_mbuf *m_in = dec->input.data; struct rte_mbuf *m_harq_in = dec->harq_combined_input.data; @@ -1661,7 +1661,10 @@ struct turbo_sw_queue { e = (r < dec->tb_params.cab) ? dec->tb_params.ea : dec->tb_params.eb; - seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset; + if (e < 64000) /* Special case handling when overusing mbuf */ + seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset; + else + seg_total_left = e; process_ldpc_dec_cb(q, op, c, out_length, e, m_in, m_out_head, m_out, -- 1.8.3.1