From: Chenghai Huang <huangchenghai2@huawei.com> Supports LZ77 encoding for LZ4 without additional offset processing. The output includes literal and sequence (LitLength, MatchLength, Offset). Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com> Signed-off-by: Qi Tao <taoqi10@huawei.com> --- drv/hisi_comp.c | 294 ++++++++++++++++++++++++++++++++++++++-------- include/wd_comp.h | 1 + wd_comp.c | 2 +- wd_util.c | 1 + 4 files changed, 247 insertions(+), 51 deletions(-) diff --git a/drv/hisi_comp.c b/drv/hisi_comp.c index eabe171f..235ed93c 100644 --- a/drv/hisi_comp.c +++ b/drv/hisi_comp.c @@ -84,6 +84,9 @@ #define OVERFLOW_DATA_SIZE 8 #define SEQ_DATA_SIZE_SHIFT 3 #define ZSTD_FREQ_DATA_SIZE 784 +#define ZSTD_MIN_OUT_SIZE 1000 +#define LZ77_MIN_OUT_SIZE 200 +#define PRICE_MIN_OUT_SIZE 4096 #define ZSTD_LIT_RESV_SIZE 16 #define REPCODE_SIZE 12 @@ -108,6 +111,8 @@ enum alg_type { HW_GZIP, HW_LZ77_ZSTD_PRICE = 0x42, HW_LZ77_ZSTD, + HW_LZ77_ONLY = 0x40, + HW_LZ77_ONLY_PRICE, }; enum hw_state { @@ -617,31 +622,30 @@ static void fill_buf_addr_lz77_zstd(struct hisi_zip_sqe *sqe, sqe->stream_ctx_addr_h = upper_32_bits(ctx_buf); } -static int fill_buf_lz77_zstd(handle_t h_qp, struct hisi_zip_sqe *sqe, - struct wd_comp_msg *msg) +static int lz77_zstd_buf_check(struct wd_comp_msg *msg) { - struct wd_comp_req *req = &msg->req; - struct wd_lz77_zstd_data *data = req->priv; __u32 in_size = msg->req.src_len; - __u32 lits_size = in_size + ZSTD_LIT_RESV_SIZE; __u32 out_size = msg->avail_out; - void *ctx_buf = NULL; + __u32 lits_size = in_size + ZSTD_LIT_RESV_SIZE; + __u32 seq_avail_out = out_size - lits_size; - if (unlikely(!data)) { - WD_ERR("invalid: wd_lz77_zstd_data address is NULL!\n"); - return -WD_EINVAL; + if (unlikely(in_size > ZSTD_MAX_SIZE)) { + WD_ERR("invalid: in_len(%u) of lz77_zstd is out of range!\n", in_size); + return -WD_EINVAL; } - if (unlikely(in_size > ZSTD_MAX_SIZE)) { - WD_ERR("invalid: in_len(%u) of lz77_zstd is out of range!\n", - in_size); + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv < WD_COMP_L9 && + seq_avail_out <= ZSTD_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum!\n", + out_size, ZSTD_MIN_OUT_SIZE + lits_size); return -WD_EINVAL; } - if (unlikely(out_size > HZ_MAX_SIZE)) { - WD_ERR("warning: avail_out(%u) is out of range , will set 8MB size max!\n", - out_size); - out_size = HZ_MAX_SIZE; + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv == WD_COMP_L9 && + seq_avail_out <= PRICE_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum in price mode!\n", + out_size, PRICE_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; } /* @@ -654,6 +658,84 @@ static int fill_buf_lz77_zstd(handle_t h_qp, struct hisi_zip_sqe *sqe, return -WD_EINVAL; } + return 0; +} + +static int lz77_only_buf_check(struct wd_comp_msg *msg) +{ + __u32 in_size = msg->req.src_len; + __u32 out_size = msg->avail_out; + __u32 lits_size = in_size + ZSTD_LIT_RESV_SIZE; + __u32 seq_avail_out = out_size - lits_size; + + /* lits_size need to be less than 8M when use pbuffer */ + if (unlikely(lits_size > HZ_MAX_SIZE)) { + WD_ERR("invalid: in_len(%u) of lz77_zstd is out of range!\n", in_size); + return -WD_EINVAL; + } + + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv < WD_COMP_L9 && + seq_avail_out <= LZ77_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum!\n", + out_size, LZ77_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv == WD_COMP_L9 && + seq_avail_out <= PRICE_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum in price mode!\n", + out_size, PRICE_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + /* For lz77_only, the hardware needs 32 Bytes buffer to output the dfx information */ + if (unlikely(out_size < ZSTD_LIT_RESV_SIZE + lits_size)) { + WD_ERR("invalid: output is not enough, %u bytes are minimum!\n", + ZSTD_LIT_RESV_SIZE + lits_size); + return -WD_EINVAL; + } + + return 0; +} + +static int lz77_buf_check(struct wd_comp_msg *msg) +{ + enum wd_comp_alg_type alg_type = msg->alg_type; + + if (alg_type == WD_LZ77_ZSTD) + return lz77_zstd_buf_check(msg); + else if (alg_type == WD_LZ77_ONLY) + return lz77_only_buf_check(msg); + + return 0; +} + +static int fill_buf_lz77_zstd(handle_t h_qp, struct hisi_zip_sqe *sqe, + struct wd_comp_msg *msg) +{ + struct wd_comp_req *req = &msg->req; + struct wd_lz77_zstd_data *data = req->priv; + __u32 in_size = msg->req.src_len; + __u32 lits_size = in_size + ZSTD_LIT_RESV_SIZE; + __u32 seq_avail_out = msg->avail_out - lits_size; + void *ctx_buf = NULL; + int ret; + + if (unlikely(!data)) { + WD_ERR("invalid: wd_lz77_zstd_data address is NULL!\n"); + return -WD_EINVAL; + } + + ret = lz77_buf_check(msg); + if (ret) + return ret; + + if (unlikely(seq_avail_out > HZ_MAX_SIZE)) { + WD_ERR("warning: sequence avail_out(%u) is out of range , will set 8MB size max!\n", + seq_avail_out); + seq_avail_out = HZ_MAX_SIZE; + } + if (msg->ctx_buf) { ctx_buf = msg->ctx_buf + RSV_OFFSET; if (data->blk_type != COMP_BLK) @@ -661,7 +743,7 @@ static int fill_buf_lz77_zstd(handle_t h_qp, struct hisi_zip_sqe *sqe, msg->ctx_buf + CTX_REPCODE2_OFFSET, REPCODE_SIZE); } - fill_buf_size_lz77_zstd(sqe, in_size, lits_size, out_size - lits_size); + fill_buf_size_lz77_zstd(sqe, in_size, lits_size, seq_avail_out); fill_buf_addr_lz77_zstd(sqe, req->src, req->dst, req->dst + lits_size, ctx_buf); @@ -686,6 +768,103 @@ static struct wd_datalist *get_seq_start_list(struct wd_comp_req *req) return cur; } +static int lz77_zstd_buf_check_sgl(struct wd_comp_msg *msg, __u32 lits_size) +{ + __u32 in_size = msg->req.src_len; + __u32 out_size = msg->avail_out; + __u32 seq_avail_out; + + if (unlikely(in_size > ZSTD_MAX_SIZE)) { + WD_ERR("invalid: in_len(%u) of lz77_zstd is out of range!\n", in_size); + return -WD_EINVAL; + } + + /* + * For lz77_zstd, the hardware needs 784 Bytes buffer to output + * the frequency information about input data. The sequences + * and frequency data need to be written to an independent sgl + * splited from list_dst. + */ + if (unlikely(lits_size < in_size + ZSTD_LIT_RESV_SIZE)) { + WD_ERR("invalid: output is not enough for literals, at least %u bytes!\n", + ZSTD_FREQ_DATA_SIZE + lits_size); + return -WD_EINVAL; + } else if (unlikely(out_size < ZSTD_FREQ_DATA_SIZE + lits_size)) { + WD_ERR("invalid: output is not enough for sequences, at least %u bytes more!\n", + ZSTD_FREQ_DATA_SIZE + lits_size - out_size); + return -WD_EINVAL; + } + + seq_avail_out = out_size - lits_size; + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv < WD_COMP_L9 && + seq_avail_out <= ZSTD_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum!\n", + out_size, ZSTD_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv == WD_COMP_L9 && + seq_avail_out <= PRICE_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum in price mode!\n", + out_size, PRICE_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + return 0; +} + +static int lz77_only_buf_check_sgl(struct wd_comp_msg *msg, __u32 lits_size) +{ + __u32 in_size = msg->req.src_len; + __u32 out_size = msg->avail_out; + __u32 seq_avail_out; + + /* + * For lz77_only, the hardware needs 32 Bytes buffer to output + * the dfx information. The literals and sequences data need to be written + * to an independent sgl splited from list_dst. + */ + if (unlikely(lits_size < in_size + ZSTD_LIT_RESV_SIZE)) { + WD_ERR("invalid: output is not enough for literals, at least %u bytes!\n", + ZSTD_LIT_RESV_SIZE + lits_size); + return -WD_EINVAL; + } else if (unlikely(out_size < ZSTD_LIT_RESV_SIZE + lits_size)) { + WD_ERR("invalid: output is not enough for sequences, at least %u bytes more!\n", + ZSTD_LIT_RESV_SIZE + lits_size - out_size); + return -WD_EINVAL; + } + + seq_avail_out = out_size - lits_size; + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv < WD_COMP_L9 && + seq_avail_out <= LZ77_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum!\n", + out_size, LZ77_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + if (unlikely(msg->stream_mode == WD_COMP_STATEFUL && msg->comp_lv == WD_COMP_L9 && + seq_avail_out <= PRICE_MIN_OUT_SIZE)) { + WD_ERR("invalid: out_len(%u) not enough, %u bytes are minimum in price mode!\n", + out_size, PRICE_MIN_OUT_SIZE + lits_size); + return -WD_EINVAL; + } + + return 0; +} + + +static int lz77_buf_check_sgl(struct wd_comp_msg *msg, __u32 lits_size) +{ + enum wd_comp_alg_type alg_type = msg->alg_type; + + if (alg_type == WD_LZ77_ZSTD) + return lz77_zstd_buf_check_sgl(msg, lits_size); + else if (alg_type == WD_LZ77_ONLY) + return lz77_only_buf_check_sgl(msg, lits_size); + + return 0; +} + static int fill_buf_lz77_zstd_sgl(handle_t h_qp, struct hisi_zip_sqe *sqe, struct wd_comp_msg *msg) { @@ -699,12 +878,6 @@ static int fill_buf_lz77_zstd_sgl(handle_t h_qp, struct hisi_zip_sqe *sqe, __u32 lits_size; int ret; - if (unlikely(in_size > ZSTD_MAX_SIZE)) { - WD_ERR("invalid: in_len(%u) of lz77_zstd is out of range!\n", - in_size); - return -WD_EINVAL; - } - if (unlikely(!data)) { WD_ERR("invalid: wd_lz77_zstd_data address is NULL!\n"); return -WD_EINVAL; @@ -716,26 +889,15 @@ static int fill_buf_lz77_zstd_sgl(handle_t h_qp, struct hisi_zip_sqe *sqe, if (unlikely(!seq_start)) return -WD_EINVAL; + lits_size = hisi_qm_get_list_size(req->list_dst, seq_start); + + ret = lz77_buf_check_sgl(msg, lits_size); + if (ret) + return ret; + data->literals_start = req->list_dst; data->sequences_start = seq_start; - /* - * For lz77_zstd, the hardware needs 784 Bytes buffer to output - * the frequency information about input data. The sequences - * and frequency data need to be written to an independent sgl - * splited from list_dst. - */ - lits_size = hisi_qm_get_list_size(req->list_dst, seq_start); - if (unlikely(lits_size < in_size + ZSTD_LIT_RESV_SIZE)) { - WD_ERR("invalid: output is not enough for literals, %u bytes are minimum!\n", - ZSTD_FREQ_DATA_SIZE + lits_size); - return -WD_EINVAL; - } else if (unlikely(out_size < ZSTD_FREQ_DATA_SIZE + lits_size)) { - WD_ERR("invalid: output is not enough for sequences, at least %u bytes more!\n", - ZSTD_FREQ_DATA_SIZE + lits_size - out_size); - return -WD_EINVAL; - } - fill_buf_size_lz77_zstd(sqe, in_size, lits_size, out_size - lits_size); h_sgl_pool = hisi_qm_get_sglpool(h_qp); @@ -825,6 +987,15 @@ static void fill_alg_lz77_zstd(struct hisi_zip_sqe *sqe) sqe->dw9 = val; } +static void fill_alg_lz77_only(struct hisi_zip_sqe *sqe) +{ + __u32 val; + + val = sqe->dw9 & ~HZ_REQ_TYPE_MASK; + val |= HW_LZ77_ONLY; + sqe->dw9 = val; +} + static void fill_tag_v1(struct hisi_zip_sqe *sqe, __u32 tag) { sqe->dw13 = tag; @@ -842,7 +1013,7 @@ static int fill_comp_level_deflate(struct hisi_zip_sqe *sqe, enum wd_comp_level static int fill_comp_level_lz77_zstd(struct hisi_zip_sqe *sqe, enum wd_comp_level comp_lv) { - __u32 val; + __u32 val, alg; switch (comp_lv) { case WD_COMP_L8: @@ -852,8 +1023,12 @@ static int fill_comp_level_lz77_zstd(struct hisi_zip_sqe *sqe, enum wd_comp_leve */ break; case WD_COMP_L9: + alg = sqe->dw9 & HZ_REQ_TYPE_MASK; val = sqe->dw9 & ~HZ_REQ_TYPE_MASK; - val |= HW_LZ77_ZSTD_PRICE; + if (alg == HW_LZ77_ZSTD) + val |= HW_LZ77_ZSTD_PRICE; + else if (alg == HW_LZ77_ONLY) + val |= HW_LZ77_ONLY_PRICE; sqe->dw9 = val; break; default: @@ -912,12 +1087,16 @@ static void get_data_size_lz77_zstd(struct hisi_zip_sqe *sqe, enum wd_comp_op_ty if (unlikely(!data)) return; + recv_msg->in_cons = sqe->consumed; data->lit_num = sqe->comp_data_length; data->seq_num = sqe->produced; - data->lit_length_overflow_cnt = sqe->dw31 >> LITLEN_OVERFLOW_CNT_SHIFT; - data->lit_length_overflow_pos = sqe->dw31 & LITLEN_OVERFLOW_POS_MASK; - data->freq = data->sequences_start + (data->seq_num << SEQ_DATA_SIZE_SHIFT) + - OVERFLOW_DATA_SIZE; + + if (recv_msg->alg_type == WD_LZ77_ZSTD) { + data->lit_length_overflow_cnt = sqe->dw31 >> LITLEN_OVERFLOW_CNT_SHIFT; + data->lit_length_overflow_pos = sqe->dw31 & LITLEN_OVERFLOW_POS_MASK; + data->freq = data->sequences_start + (data->seq_num << SEQ_DATA_SIZE_SHIFT) + + OVERFLOW_DATA_SIZE; + } if (ctx_buf) { memcpy(ctx_buf + CTX_REPCODE2_OFFSET, @@ -971,6 +1150,16 @@ struct hisi_zip_sqe_ops ops[] = { { .fill_comp_level = fill_comp_level_lz77_zstd, .get_data_size = get_data_size_lz77_zstd, .get_tag = get_tag_v3, + }, { + .alg_name = "lz77_only", + .fill_buf[WD_FLAT_BUF] = fill_buf_lz77_zstd, + .fill_buf[WD_SGL_BUF] = fill_buf_lz77_zstd_sgl, + .fill_sqe_type = fill_sqe_type_v3, + .fill_alg = fill_alg_lz77_only, + .fill_tag = fill_tag_v3, + .fill_comp_level = fill_comp_level_lz77_zstd, + .get_data_size = get_data_size_lz77_zstd, + .get_tag = get_tag_v3, } }; @@ -1080,10 +1269,6 @@ static int fill_zip_comp_sqe(struct hisi_qp *qp, struct wd_comp_msg *msg, return -WD_EINVAL; } - ret = ops[alg_type].fill_comp_level(sqe, msg->comp_lv); - if (unlikely(ret)) - return ret; - ret = ops[alg_type].fill_buf[msg->req.data_fmt]((handle_t)qp, sqe, msg); if (unlikely(ret)) return ret; @@ -1092,6 +1277,10 @@ static int fill_zip_comp_sqe(struct hisi_qp *qp, struct wd_comp_msg *msg, ops[alg_type].fill_alg(sqe); + ret = ops[alg_type].fill_comp_level(sqe, msg->comp_lv); + if (unlikely(ret)) + return ret; + ops[alg_type].fill_tag(sqe, msg->tag); state = (msg->stream_mode == WD_COMP_STATEFUL) ? HZ_STATEFUL : @@ -1191,6 +1380,10 @@ static int get_alg_type(__u32 type) case HW_LZ77_ZSTD_PRICE: alg_type = WD_LZ77_ZSTD; break; + case HW_LZ77_ONLY: + case HW_LZ77_ONLY_PRICE: + alg_type = WD_LZ77_ONLY; + break; default: break; } @@ -1370,6 +1563,7 @@ static struct wd_alg_driver zip_alg_driver[] = { GEN_ZIP_ALG_DRIVER("deflate"), GEN_ZIP_ALG_DRIVER("lz77_zstd"), + GEN_ZIP_ALG_DRIVER("lz77_only"), }; #ifdef WD_STATIC_DRV diff --git a/include/wd_comp.h b/include/wd_comp.h index 45994ff6..0012ef6b 100644 --- a/include/wd_comp.h +++ b/include/wd_comp.h @@ -20,6 +20,7 @@ enum wd_comp_alg_type { WD_ZLIB, WD_GZIP, WD_LZ77_ZSTD, + WD_LZ77_ONLY, WD_COMP_ALG_MAX, }; diff --git a/wd_comp.c b/wd_comp.c index 647c320e..8e47a32f 100644 --- a/wd_comp.c +++ b/wd_comp.c @@ -27,7 +27,7 @@ #define cpu_to_be32(x) swap_byte(x) static const char *wd_comp_alg_name[WD_COMP_ALG_MAX] = { - "zlib", "gzip", "deflate", "lz77_zstd" + "zlib", "gzip", "deflate", "lz77_zstd", "lz77_only" }; struct wd_comp_sess { diff --git a/wd_util.c b/wd_util.c index 38d2d375..ec8bd7c6 100644 --- a/wd_util.c +++ b/wd_util.c @@ -107,6 +107,7 @@ static struct acc_alg_item alg_options[] = { {"gzip", "gzip"}, {"deflate", "deflate"}, {"lz77_zstd", "lz77_zstd"}, + {"lz77_only", "lz77_only"}, {"hashagg", "hashagg"}, {"udma", "udma"}, -- 2.33.0