The patchset adds support for wqe configuration of compress and decompress, preliminary verification of results and preparation of checksums. Signed-off-by: Hanxiao Li --- drivers/common/zsda/meson.build | 12 +- drivers/compress/zsda/zsda_comp.c | 392 ++++++++++++++++++++++++++++++ drivers/compress/zsda/zsda_comp.h | 52 ++++ 3 files changed, 455 insertions(+), 1 deletion(-) create mode 100644 drivers/compress/zsda/zsda_comp.c create mode 100644 drivers/compress/zsda/zsda_comp.h diff --git a/drivers/common/zsda/meson.build b/drivers/common/zsda/meson.build index 4d1eec8867..f873a357e3 100644 --- a/drivers/common/zsda/meson.build +++ b/drivers/common/zsda/meson.build @@ -7,10 +7,20 @@ if is_windows subdir_done() endif -deps += ['bus_pci'] +deps += ['bus_pci', 'compressdev'] sources += files( 'zsda_common.c', 'zsda_logs.c', 'zsda_device.c', 'zsda_qp.c', ) + +zsda_compress = true +zsda_compress_path = 'compress/zsda' +zsda_compress_relpath = '../../' + zsda_compress_path +includes += include_directories(zsda_compress_relpath) +if zsda_compress + foreach f: ['zsda_comp.c'] + sources += files(join_paths(zsda_compress_relpath, f)) + endforeach +endif diff --git a/drivers/compress/zsda/zsda_comp.c b/drivers/compress/zsda/zsda_comp.c new file mode 100644 index 0000000000..40c978c520 --- /dev/null +++ b/drivers/compress/zsda/zsda_comp.c @@ -0,0 +1,392 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2024 ZTE Corporation + */ + +#include "zsda_comp.h" + +#define ZLIB_HEADER_SIZE 2 +#define ZLIB_TRAILER_SIZE 4 +#define GZIP_HEADER_SIZE 10 +#define GZIP_TRAILER_SIZE 8 +#define CHECKSUM_SIZE 4 + +static uint32_t zsda_read_chksum(uint8_t *data_addr, uint8_t op_code, + uint32_t produced); + + +#define POLYNOMIAL 0xEDB88320 +static uint32_t crc32_table[8][256]; +static int table_config; + +static void +build_crc32_table(void) +{ + for (uint32_t i = 0; i < 256; i++) { + uint32_t crc = i; + for (uint32_t j = 0; j < 8; j++) + crc = (crc >> 1) ^ ((crc & 1) ? POLYNOMIAL : 0); + crc32_table[0][i] = crc; + } + + for (int i = 1; i < 8; i++) { + for (uint32_t j = 0; j < 256; j++) + crc32_table[i][j] = (crc32_table[i-1][j] >> 8) ^ + crc32_table[0][crc32_table[i-1][j] & 0xFF]; + } + table_config = 1; +} + +static uint32_t +zsda_crc32(const uint8_t *data, size_t length) +{ + uint32_t crc = 0xFFFFFFFF; + + if (!table_config) + build_crc32_table(); + + while (length >= 8) { + crc ^= *(const uint32_t *)data; + crc = crc32_table[7][crc & 0xFF] ^ + crc32_table[6][(crc >> 8) & 0xFF] ^ + crc32_table[5][(crc >> 16) & 0xFF] ^ + crc32_table[4][(crc >> 24) & 0xFF] ^ + crc32_table[3][data[4]] ^ + crc32_table[2][data[5]] ^ + crc32_table[1][data[6]] ^ + crc32_table[0][data[7]]; + + data += 8; + length -= 8; + } + + for (size_t i = 0; i < length; i++) + crc = (crc >> 8) ^ crc32_table[0][(crc ^ data[i]) & 0xFF]; + + return crc ^ 0xFFFFFFFF; +} + +#define MOD_ADLER 65521 +#define NMAX 5552 +static uint32_t +zsda_adler32(const uint8_t *buf, uint32_t len) +{ + uint32_t s1 = 1; + uint32_t s2 = 0; + + while (len > 0) { + uint32_t k = (len < NMAX) ? len : NMAX; + len -= k; + + for (uint32_t i = 0; i < k; i++) { + s1 += buf[i]; + s2 += s1; + } + + s1 %= MOD_ADLER; + s2 %= MOD_ADLER; + + buf += k; + } + + return (s2 << 16) | s1; +} + +int +zsda_comp_match(const void *op_in) +{ + const struct rte_comp_op *op = op_in; + const struct zsda_comp_xform *xform = op->private_xform; + + if (op->op_type != RTE_COMP_OP_STATELESS) + return 0; + + if (xform->type != RTE_COMP_COMPRESS) + return 0; + + return 1; +} + +static uint8_t +get_opcode(const struct zsda_comp_xform *xform) +{ + if (xform->type == RTE_COMP_COMPRESS) { + if (xform->checksum_type == RTE_COMP_CHECKSUM_NONE || + xform->checksum_type == RTE_COMP_CHECKSUM_CRC32) + return ZSDA_OPC_COMP_GZIP; + else if (xform->checksum_type == RTE_COMP_CHECKSUM_ADLER32) + return ZSDA_OPC_COMP_ZLIB; + } + if (xform->type == RTE_COMP_DECOMPRESS) { + if (xform->checksum_type == RTE_COMP_CHECKSUM_CRC32 || + xform->checksum_type == RTE_COMP_CHECKSUM_NONE) + return ZSDA_OPC_DECOMP_GZIP; + else if (xform->checksum_type == RTE_COMP_CHECKSUM_ADLER32) + return ZSDA_OPC_DECOMP_ZLIB; + } + + return ZSDA_OPC_INVALID; +} + +int +zsda_build_comp_request(void *op_in, const struct zsda_queue *queue, + void **op_cookies, const uint16_t new_tail) +{ + struct rte_comp_op *op = op_in; + struct zsda_comp_xform *xform = op->private_xform; + struct zsda_wqe_comp *wqe = + (struct zsda_wqe_comp *)(queue->base_addr + + (new_tail * queue->msg_size)); + + struct zsda_op_cookie *cookie = op_cookies[new_tail]; + struct zsda_sgl *sgl_src = (struct zsda_sgl *)&cookie->sgl_src; + struct zsda_sgl *sgl_dst = (struct zsda_sgl *)&cookie->sgl_dst; + struct comp_head_info comp_head_info; + + uint8_t opcode; + int ret = 0; + uint32_t op_offset; + uint32_t op_src_len; + uint32_t op_dst_len; + uint32_t head_len; + + if ((op->m_dst == NULL) || (op->m_dst == op->m_src)) { + ZSDA_LOG(ERR, "Failed! m_dst"); + return -EINVAL; + } + + opcode = get_opcode(xform); + if (opcode == ZSDA_OPC_INVALID) { + ZSDA_LOG(ERR, E_CONFIG); + return -EINVAL; + } + + cookie->used = true; + cookie->sid = new_tail; + cookie->op = op; + + if (opcode == ZSDA_OPC_COMP_GZIP) + head_len = GZIP_HEADER_SIZE; + else if (opcode == ZSDA_OPC_COMP_ZLIB) + head_len = ZLIB_HEADER_SIZE; + else { + ZSDA_LOG(ERR, "Comp, op_code error!"); + return -EINVAL; + } + + comp_head_info.head_len = head_len; + comp_head_info.head_phys_addr = cookie->comp_head_phys_addr; + + op_offset = op->src.offset; + op_src_len = op->src.length; + ret = zsda_fill_sgl(op->m_src, op_offset, sgl_src, + cookie->sgl_src_phys_addr, op_src_len, NULL); + + op_offset = op->dst.offset; + op_dst_len = op->m_dst->pkt_len - op_offset; + op_dst_len += head_len; + ret |= zsda_fill_sgl(op->m_dst, op_offset, sgl_dst, + cookie->sgl_dst_phys_addr, op_dst_len, + &comp_head_info); + + if (ret) { + ZSDA_LOG(ERR, E_FUNC); + return ret; + } + + memset(wqe, 0, sizeof(struct zsda_wqe_comp)); + wqe->rx_length = op_src_len; + wqe->tx_length = op_dst_len; + wqe->valid = queue->valid; + wqe->op_code = opcode; + wqe->sid = cookie->sid; + wqe->rx_sgl_type = SGL_ELM_TYPE_LIST; + wqe->tx_sgl_type = SGL_ELM_TYPE_LIST; + + wqe->rx_addr = cookie->sgl_src_phys_addr; + wqe->tx_addr = cookie->sgl_dst_phys_addr; + + return ret; +} + +int +zsda_decomp_match(const void *op_in) +{ + const struct rte_comp_op *op = op_in; + const struct zsda_comp_xform *xform = op->private_xform; + + if (op->op_type != RTE_COMP_OP_STATELESS) + return 0; + + if (xform->type != RTE_COMP_DECOMPRESS) + return 0; + return 1; +} + +int +zsda_build_decomp_request(void *op_in, const struct zsda_queue *queue, + void **op_cookies, const uint16_t new_tail) +{ + struct rte_comp_op *op = op_in; + struct zsda_comp_xform *xform = op->private_xform; + + struct zsda_wqe_comp *wqe = + (struct zsda_wqe_comp *)(queue->base_addr + + (new_tail * queue->msg_size)); + struct zsda_op_cookie *cookie = op_cookies[new_tail]; + struct zsda_sgl *sgl_src = (struct zsda_sgl *)&cookie->sgl_src; + struct zsda_sgl *sgl_dst = (struct zsda_sgl *)&cookie->sgl_dst; + uint8_t opcode; + int ret = 0; + + uint32_t op_offset; + uint32_t op_src_len; + uint32_t op_dst_len; + + uint8_t *head_data; + uint16_t head_len; + struct comp_head_info comp_head_info; + uint8_t head_zlib[ZLIB_HEADER_SIZE] = {0x78, 0xDA}; + uint8_t head_gzip[GZIP_HEADER_SIZE] = {0x1F, 0x8B, 0x08, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x03}; + + if ((op->m_dst == NULL) || (op->m_dst == op->m_src)) { + ZSDA_LOG(ERR, "Failed! m_dst"); + return -EINVAL; + } + + opcode = get_opcode(xform); + if (opcode == ZSDA_OPC_INVALID) { + ZSDA_LOG(ERR, E_CONFIG); + return -EINVAL; + } + + cookie->used = true; + cookie->sid = new_tail; + cookie->op = op; + + if (opcode == ZSDA_OPC_DECOMP_GZIP) { + head_data = head_gzip; + head_len = GZIP_HEADER_SIZE; + } else if (opcode == ZSDA_OPC_DECOMP_ZLIB) { + head_data = head_zlib; + head_len = ZLIB_HEADER_SIZE; + } else { + ZSDA_LOG(ERR, "Comp, op_code error!"); + return -EINVAL; + } + + op_offset = op->src.offset; + op_src_len = op->src.length; + op_src_len += head_len; + comp_head_info.head_len = head_len; + comp_head_info.head_phys_addr = cookie->comp_head_phys_addr; + cookie->decomp_no_tail = true; + for (int i = 0; i < head_len; i++) + cookie->comp_head[i] = head_data[i]; + + ret = zsda_fill_sgl(op->m_src, op_offset, sgl_src, + cookie->sgl_src_phys_addr, op_src_len, + &comp_head_info); + + op_offset = op->dst.offset; + op_dst_len = op->m_dst->pkt_len - op_offset; + ret |= zsda_fill_sgl(op->m_dst, op_offset, sgl_dst, + cookie->sgl_dst_phys_addr, op_dst_len, NULL); + + if (ret) { + ZSDA_LOG(ERR, E_FUNC); + return ret; + } + + memset(wqe, 0, sizeof(struct zsda_wqe_comp)); + + wqe->rx_length = op_src_len; + wqe->tx_length = op_dst_len; + wqe->valid = queue->valid; + wqe->op_code = opcode; + wqe->sid = cookie->sid; + wqe->rx_sgl_type = SGL_ELM_TYPE_LIST; + wqe->tx_sgl_type = SGL_ELM_TYPE_LIST; + wqe->rx_addr = cookie->sgl_src_phys_addr; + wqe->tx_addr = cookie->sgl_dst_phys_addr; + + return ret; +} + +int +zsda_comp_callback(void *cookie_in, struct zsda_cqe *cqe) +{ + struct zsda_op_cookie *tmp_cookie = cookie_in; + struct rte_comp_op *tmp_op = tmp_cookie->op; + uint8_t *data_addr = + (uint8_t *)tmp_op->m_dst->buf_addr + tmp_op->m_dst->data_off; + uint32_t chksum = 0; + uint16_t head_len; + uint16_t tail_len; + + if (tmp_cookie->decomp_no_tail && CQE_ERR0_RIGHT(cqe->err0)) + cqe->err0 = 0x0000; + + if (!(CQE_ERR0(cqe->err0) || CQE_ERR1(cqe->err1))) + tmp_op->status = RTE_COMP_OP_STATUS_SUCCESS; + else { + tmp_op->status = RTE_COMP_OP_STATUS_ERROR; + return ZSDA_FAILED; + } + + /* handle chksum */ + tmp_op->produced = cqe->tx_real_length; + if (cqe->op_code == ZSDA_OPC_COMP_ZLIB) { + head_len = ZLIB_HEADER_SIZE; + tail_len = ZLIB_TRAILER_SIZE; + chksum = zsda_read_chksum(data_addr, cqe->op_code, + tmp_op->produced - head_len); + } + if (cqe->op_code == ZSDA_OPC_COMP_GZIP) { + head_len = GZIP_HEADER_SIZE; + tail_len = GZIP_TRAILER_SIZE; + chksum = zsda_read_chksum(data_addr, cqe->op_code, + tmp_op->produced - head_len); + } else if (cqe->op_code == ZSDA_OPC_DECOMP_ZLIB) { + head_len = ZLIB_HEADER_SIZE; + tail_len = ZLIB_TRAILER_SIZE; + chksum = zsda_adler32(data_addr, tmp_op->produced); + } else if (cqe->op_code == ZSDA_OPC_DECOMP_GZIP) { + head_len = GZIP_HEADER_SIZE; + tail_len = GZIP_TRAILER_SIZE; + chksum = zsda_crc32(data_addr, tmp_op->produced); + } + tmp_op->output_chksum = chksum; + + if (cqe->op_code == ZSDA_OPC_COMP_ZLIB || + cqe->op_code == ZSDA_OPC_COMP_GZIP) { + /* remove tail data*/ + rte_pktmbuf_trim(tmp_op->m_dst, GZIP_TRAILER_SIZE); + /* remove head and tail length */ + tmp_op->produced = tmp_op->produced - (head_len + tail_len); + } + + return ZSDA_SUCCESS; +} + +static uint32_t +zsda_read_chksum(uint8_t *data_addr, uint8_t op_code, uint32_t produced) +{ + uint8_t *chk_addr; + uint32_t chksum = 0; + int i = 0; + + if (op_code == ZSDA_OPC_COMP_ZLIB) { + chk_addr = data_addr + produced - ZLIB_TRAILER_SIZE; + for (i = 0; i < CHECKSUM_SIZE; i++) { + chksum = chksum << 8; + chksum |= (*(chk_addr + i)); + } + } else if (op_code == ZSDA_OPC_COMP_GZIP) { + chk_addr = data_addr + produced - GZIP_TRAILER_SIZE; + for (i = 0; i < CHECKSUM_SIZE; i++) + chksum |= (*(chk_addr + i) << (i * 8)); + } + + return chksum; +} diff --git a/drivers/compress/zsda/zsda_comp.h b/drivers/compress/zsda/zsda_comp.h new file mode 100644 index 0000000000..52aaf2db47 --- /dev/null +++ b/drivers/compress/zsda/zsda_comp.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2024 ZTE Corporation + */ + +#ifndef _ZSDA_COMP_H_ +#define _ZSDA_COMP_H_ + +#include + +#include "zsda_common.h" +#include "zsda_device.h" +#include "zsda_qp.h" + +struct zsda_comp_xform { + enum rte_comp_xform_type type; + enum rte_comp_checksum_type checksum_type; +}; + +struct compress_cfg { +} __rte_packed; + +struct zsda_wqe_comp { + uint8_t valid; + uint8_t op_code; + uint16_t sid; + uint8_t resv[3]; + uint8_t rx_sgl_type : 4; + uint8_t tx_sgl_type : 4; + uint64_t rx_addr; + uint32_t rx_length; + uint64_t tx_addr; + uint32_t tx_length; + struct compress_cfg cfg; +} __rte_packed; + +/* For situations where err0 are reported but the results are correct */ +#define DECOMP_RIGHT_ERR0_0 0xc710 +#define DECOMP_RIGHT_ERR0_1 0xc727 +#define DECOMP_RIGHT_ERR0_2 0xc729 +#define CQE_ERR0_RIGHT(value) \ + (value == DECOMP_RIGHT_ERR0_0 || value == DECOMP_RIGHT_ERR0_1 || \ + value == DECOMP_RIGHT_ERR0_2) + +int zsda_comp_match(const void *op_in); +int zsda_build_comp_request(void *op_in, const struct zsda_queue *queue, + void **op_cookies, const uint16_t new_tail); +int zsda_decomp_match(const void *op_in); +int zsda_build_decomp_request(void *op_in, const struct zsda_queue *queue, + void **op_cookies, const uint16_t new_tail); +int zsda_comp_callback(void *cookie_in, struct zsda_cqe *cqe); + +#endif -- 2.27.0