From 765f42f1bd95bd11a46b7e30ae53d3f72aee31d4 Mon Sep 17 00:00:00 2001 From: Nicolas Chautru Date: Tue, 7 Sep 2021 18:15:39 -0700 Subject: [PATCH] baseband/acc100: support 4G CRC drop This implements in PMD the option to drop the CB CRC after 4G decoding to help transport block concatenation. Signed-off-by: Nicolas Chautru Reviewed-by: Tom Rix --- doc/guides/bbdevs/acc100.rst | 1 + doc/guides/rel_notes/release_21_11.rst | 4 ++++ drivers/baseband/acc100/rte_acc100_pmd.c | 12 +++++++++--- 3 files changed, 14 insertions(+), 3 deletions(-) diff --git a/doc/guides/bbdevs/acc100.rst b/doc/guides/bbdevs/acc100.rst index ff0fa4bf87..9fff6abd8c 100644 --- a/doc/guides/bbdevs/acc100.rst +++ b/doc/guides/bbdevs/acc100.rst @@ -58,6 +58,7 @@ ACC100 5G/4G FEC PMD supports the following BBDEV capabilities: - ``RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN`` : set if negative LLR encoder i/p is supported - ``RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN`` : set if positive LLR encoder i/p is supported - ``RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP`` : keep CRC24B bits appended while decoding + - ``RTE_BBDEV_TURBO_DEC_CRC_24B_DROP`` : option to drop the code block CRC after decoding - ``RTE_BBDEV_TURBO_EARLY_TERMINATION`` : set early termination feature - ``RTE_BBDEV_TURBO_DEC_SCATTER_GATHER`` : supports scatter-gather for input/output data - ``RTE_BBDEV_TURBO_HALF_ITERATION_EVEN`` : set half iteration granularity diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst index e0e12d2ed8..5446878268 100644 --- a/doc/guides/rel_notes/release_21_11.rst +++ b/doc/guides/rel_notes/release_21_11.rst @@ -122,6 +122,10 @@ New Features * Added PDCP short MAC-I support. +* **Updated the ACC100 bbdev PMD.** + + Added support for more comprehensive CRC options. + * **Updated the turbo_sw bbdev PMD.** Added support for more comprehensive CRC options. diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c index 68ba523ea9..2e9ce92db6 100644 --- a/drivers/baseband/acc100/rte_acc100_pmd.c +++ b/drivers/baseband/acc100/rte_acc100_pmd.c @@ -980,6 +980,7 @@ acc100_dev_info_get(struct rte_bbdev *dev, RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN | RTE_BBDEV_TURBO_MAP_DEC | RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP | + RTE_BBDEV_TURBO_DEC_CRC_24B_DROP | RTE_BBDEV_TURBO_DEC_SCATTER_GATHER, .max_llr_modulus = INT8_MAX, .num_buffers_src = @@ -1708,8 +1709,12 @@ acc100_dma_desc_td_fill(struct rte_bbdev_dec_op *op, } if ((op->turbo_dec.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK) - && !check_bit(op->turbo_dec.op_flags, - RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP)) + && !check_bit(op->turbo_dec.op_flags, + RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP)) + crc24_overlap = 24; + if ((op->turbo_dec.code_block_mode == RTE_BBDEV_CODE_BLOCK) + && check_bit(op->turbo_dec.op_flags, + RTE_BBDEV_TURBO_DEC_CRC_24B_DROP)) crc24_overlap = 24; /* Calculates circular buffer size. @@ -1744,7 +1749,8 @@ acc100_dma_desc_td_fill(struct rte_bbdev_dec_op *op, next_triplet = acc100_dma_fill_blk_type_out( desc, h_output, *h_out_offset, - k >> 3, next_triplet, ACC100_DMA_BLKID_OUT_HARD); + k >> 3, next_triplet, + ACC100_DMA_BLKID_OUT_HARD); if (unlikely(next_triplet < 0)) { rte_bbdev_log(ERR, "Mismatch between data to process and mbuf data length in bbdev_op: %p", -- 2.20.1