drivers/compress/qat/qat_comp.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <rte_mempool.h>
   6 #include <rte_mbuf.h>
   7 #include <rte_hexdump.h>
   8 #include <rte_comp.h>
   9 #include <rte_bus_pci.h>
  10 #include <rte_byteorder.h>
  11 #include <rte_memcpy.h>
  12 #include <rte_common.h>
  13 #include <rte_spinlock.h>
  14 #include <rte_log.h>
  15 #include <rte_malloc.h>
  16
  17 #include "qat_logs.h"
  18 #include "qat_comp.h"
  19 #include "qat_comp_pmd.h"
  20
  21
  22 int
  23 qat_comp_build_request(void *in_op, uint8_t *out_msg,
  24                        void *op_cookie,
  25                        enum qat_device_gen qat_dev_gen __rte_unused)
  26 {
  27         struct rte_comp_op *op = in_op;
  28         struct qat_comp_op_cookie *cookie =
  29                         (struct qat_comp_op_cookie *)op_cookie;
  30         struct qat_comp_xform *qat_xform = op->private_xform;
  31         const uint8_t *tmpl = (uint8_t *)&qat_xform->qat_comp_req_tmpl;
  32         struct icp_qat_fw_comp_req *comp_req =
  33             (struct icp_qat_fw_comp_req *)out_msg;
  34
  35         if (unlikely(op->op_type != RTE_COMP_OP_STATELESS)) {
  36                 QAT_DP_LOG(ERR, "QAT PMD only supports stateless compression "
  37                                 "operation requests, op (%p) is not a "
  38                                 "stateless operation.", op);
  39                 return -EINVAL;
  40         }
  41
  42         rte_mov128(out_msg, tmpl);
  43         comp_req->comn_mid.opaque_data = (uint64_t)(uintptr_t)op;
  44
  45         /* common for sgl and flat buffers */
  46         comp_req->comp_pars.comp_len = op->src.length;
  47         comp_req->comp_pars.out_buffer_sz = rte_pktmbuf_pkt_len(op->m_dst);
  48
  49         if (op->m_src->next != NULL || op->m_dst->next != NULL) {
  50                 /* sgl */
  51                 int ret = 0;
  52
  53                 ICP_QAT_FW_COMN_PTR_TYPE_SET(comp_req->comn_hdr.comn_req_flags,
  54                                 QAT_COMN_PTR_TYPE_SGL);
  55                 ret = qat_sgl_fill_array(op->m_src,
  56                                 rte_pktmbuf_mtophys_offset(op->m_src,
  57                                                         op->src.offset),
  58                                 &cookie->qat_sgl_src,
  59                                 op->src.length,
  60                                 RTE_PMD_QAT_COMP_SGL_MAX_SEGMENTS);
  61                 if (ret) {
  62                         QAT_DP_LOG(ERR, "QAT PMD Cannot fill sgl array");
  63                         return ret;
  64                 }
  65
  66                 ret = qat_sgl_fill_array(op->m_dst,
  67                                 rte_pktmbuf_mtophys_offset(op->m_dst,
  68                                                         op->dst.offset),
  69                                 &cookie->qat_sgl_dst,
  70                                 comp_req->comp_pars.out_buffer_sz,
  71                                 RTE_PMD_QAT_COMP_SGL_MAX_SEGMENTS);
  72                 if (ret) {
  73                         QAT_DP_LOG(ERR, "QAT PMD Cannot fill sgl array");
  74                         return ret;
  75                 }
  76
  77                 comp_req->comn_mid.src_data_addr =
  78                                 cookie->qat_sgl_src_phys_addr;
  79                 comp_req->comn_mid.dest_data_addr =
  80                                 cookie->qat_sgl_dst_phys_addr;
  81                 comp_req->comn_mid.src_length = 0;
  82                 comp_req->comn_mid.dst_length = 0;
  83
  84         } else {
  85                 /* flat aka linear buffer */
  86                 ICP_QAT_FW_COMN_PTR_TYPE_SET(comp_req->comn_hdr.comn_req_flags,
  87                                 QAT_COMN_PTR_TYPE_FLAT);
  88                 comp_req->comn_mid.src_length = rte_pktmbuf_data_len(op->m_src);
  89                 comp_req->comn_mid.dst_length = rte_pktmbuf_data_len(op->m_dst);
  90
  91                 comp_req->comn_mid.src_data_addr =
  92                     rte_pktmbuf_mtophys_offset(op->m_src, op->src.offset);
  93                 comp_req->comn_mid.dest_data_addr =
  94                     rte_pktmbuf_mtophys_offset(op->m_dst, op->dst.offset);
  95         }
  96
  97 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
  98         QAT_DP_LOG(DEBUG, "Direction: %s",
  99             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
 100                             "decompression" : "compression");
 101         QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message:", comp_req,
 102                     sizeof(struct icp_qat_fw_comp_req));
 103 #endif
 104         return 0;
 105 }
 106
 107 int
 108 qat_comp_process_response(void **op, uint8_t *resp)
 109 {
 110         struct icp_qat_fw_comp_resp *resp_msg =
 111                         (struct icp_qat_fw_comp_resp *)resp;
 112         struct rte_comp_op *rx_op = (struct rte_comp_op *)(uintptr_t)
 113                         (resp_msg->opaque_data);
 114         struct qat_comp_xform *qat_xform = (struct qat_comp_xform *)
 115                                 (rx_op->private_xform);
 116
 117 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
 118         QAT_DP_LOG(DEBUG, "Direction: %s",
 119             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
 120             "decompression" : "compression");
 121         QAT_DP_HEXDUMP_LOG(DEBUG,  "qat_response:", (uint8_t *)resp_msg,
 122                         sizeof(struct icp_qat_fw_comp_resp));
 123 #endif
 124
 125         if (likely(qat_xform->qat_comp_request_type
 126                         != QAT_COMP_REQUEST_DECOMPRESS)) {
 127                 if (unlikely(ICP_QAT_FW_COMN_HDR_CNV_FLAG_GET(
 128                                 resp_msg->comn_resp.hdr_flags)
 129                                         == ICP_QAT_FW_COMP_NO_CNV)) {
 130                         rx_op->status = RTE_COMP_OP_STATUS_ERROR;
 131                         rx_op->debug_status = ERR_CODE_QAT_COMP_WRONG_FW;
 132                         *op = (void *)rx_op;
 133                         QAT_DP_LOG(ERR, "QAT has wrong firmware");
 134                         return 0;
 135                 }
 136         }
 137
 138         if ((ICP_QAT_FW_COMN_RESP_CMP_STAT_GET(resp_msg->comn_resp.comn_status)
 139                 | ICP_QAT_FW_COMN_RESP_XLAT_STAT_GET(
 140                                 resp_msg->comn_resp.comn_status)) !=
 141                                 ICP_QAT_FW_COMN_STATUS_FLAG_OK) {
 142
 143                 rx_op->status = RTE_COMP_OP_STATUS_ERROR;
 144                 rx_op->debug_status =
 145                         *((uint16_t *)(&resp_msg->comn_resp.comn_error));
 146         } else {
 147                 struct qat_comp_xform *qat_xform = rx_op->private_xform;
 148                 struct icp_qat_fw_resp_comp_pars *comp_resp =
 149                   (struct icp_qat_fw_resp_comp_pars *)&resp_msg->comp_resp_pars;
 150
 151                 rx_op->status = RTE_COMP_OP_STATUS_SUCCESS;
 152                 rx_op->consumed = comp_resp->input_byte_counter;
 153                 rx_op->produced = comp_resp->output_byte_counter;
 154
 155                 if (qat_xform->checksum_type != RTE_COMP_CHECKSUM_NONE) {
 156                         if (qat_xform->checksum_type == RTE_COMP_CHECKSUM_CRC32)
 157                                 rx_op->output_chksum = comp_resp->curr_crc32;
 158                         else if (qat_xform->checksum_type ==
 159                                         RTE_COMP_CHECKSUM_ADLER32)
 160                                 rx_op->output_chksum = comp_resp->curr_adler_32;
 161                         else
 162                                 rx_op->output_chksum = comp_resp->curr_chksum;
 163                 }
 164         }
 165         *op = (void *)rx_op;
 166
 167         return 0;
 168 }
 169
 170 unsigned int
 171 qat_comp_xform_size(void)
 172 {
 173         return RTE_ALIGN_CEIL(sizeof(struct qat_comp_xform), 8);
 174 }
 175
 176 static void qat_comp_create_req_hdr(struct icp_qat_fw_comn_req_hdr *header,
 177                                     enum qat_comp_request_type request)
 178 {
 179         if (request == QAT_COMP_REQUEST_FIXED_COMP_STATELESS)
 180                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_STATIC;
 181         else if (request == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)
 182                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DYNAMIC;
 183         else if (request == QAT_COMP_REQUEST_DECOMPRESS)
 184                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DECOMPRESS;
 185
 186         header->service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_COMP;
 187         header->hdr_flags =
 188             ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET);
 189
 190         header->comn_req_flags = ICP_QAT_FW_COMN_FLAGS_BUILD(
 191             QAT_COMN_CD_FLD_TYPE_16BYTE_DATA, QAT_COMN_PTR_TYPE_FLAT);
 192 }
 193
 194 static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
 195                         const struct rte_memzone *interm_buff_mz __rte_unused,
 196                         const struct rte_comp_xform *xform)
 197 {
 198         struct icp_qat_fw_comp_req *comp_req;
 199         int comp_level, algo;
 200         uint32_t req_par_flags;
 201         int direction = ICP_QAT_HW_COMPRESSION_DIR_COMPRESS;
 202
 203         if (unlikely(qat_xform == NULL)) {
 204                 QAT_LOG(ERR, "Session was not created for this device");
 205                 return -EINVAL;
 206         }
 207
 208         if (qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
 209                 direction = ICP_QAT_HW_COMPRESSION_DIR_DECOMPRESS;
 210                 comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
 211                 req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
 212                                 ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
 213                                 ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_NO_CNV,
 214                                 ICP_QAT_FW_COMP_NO_CNV_RECOVERY);
 215
 216         } else {
 217                 if (xform->compress.level == RTE_COMP_LEVEL_PMD_DEFAULT)
 218                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
 219                 else if (xform->compress.level == 1)
 220                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
 221                 else if (xform->compress.level == 2)
 222                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_4;
 223                 else if (xform->compress.level == 3)
 224                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
 225                 else if (xform->compress.level >= 4 &&
 226                          xform->compress.level <= 9)
 227                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_16;
 228                 else {
 229                         QAT_LOG(ERR, "compression level not supported");
 230                         return -EINVAL;
 231                 }
 232                 req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
 233                                 ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
 234                                 ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_CNV,
 235                                 ICP_QAT_FW_COMP_CNV_RECOVERY);
 236         }
 237
 238         switch (xform->compress.algo) {
 239         case RTE_COMP_ALGO_DEFLATE:
 240                 algo = ICP_QAT_HW_COMPRESSION_ALGO_DEFLATE;
 241                 break;
 242         case RTE_COMP_ALGO_LZS:
 243         default:
 244                 /* RTE_COMP_NULL */
 245                 QAT_LOG(ERR, "compression algorithm not supported");
 246                 return -EINVAL;
 247         }
 248
 249         comp_req = &qat_xform->qat_comp_req_tmpl;
 250
 251         /* Initialize header */
 252         qat_comp_create_req_hdr(&comp_req->comn_hdr,
 253                                         qat_xform->qat_comp_request_type);
 254
 255         comp_req->comn_hdr.serv_specif_flags = ICP_QAT_FW_COMP_FLAGS_BUILD(
 256             ICP_QAT_FW_COMP_STATELESS_SESSION,
 257             ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
 258             ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
 259             ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
 260             ICP_QAT_FW_COMP_DISABLE_SECURE_RAM_USED_AS_INTMD_BUF);
 261
 262         comp_req->cd_pars.sl.comp_slice_cfg_word[0] =
 263             ICP_QAT_HW_COMPRESSION_CONFIG_BUILD(
 264                 direction,
 265                 /* In CPM 1.6 only valid mode ! */
 266                 ICP_QAT_HW_COMPRESSION_DELAYED_MATCH_ENABLED, algo,
 267                 /* Translate level to depth */
 268                 comp_level, ICP_QAT_HW_COMPRESSION_FILE_TYPE_0);
 269
 270         comp_req->comp_pars.initial_adler = 1;
 271         comp_req->comp_pars.initial_crc32 = 0;
 272         comp_req->comp_pars.req_par_flags = req_par_flags;
 273
 274
 275         if (qat_xform->qat_comp_request_type ==
 276                         QAT_COMP_REQUEST_FIXED_COMP_STATELESS ||
 277             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
 278                 ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->comp_cd_ctrl,
 279                                             ICP_QAT_FW_SLICE_DRAM_WR);
 280                 ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->comp_cd_ctrl,
 281                                             ICP_QAT_FW_SLICE_COMP);
 282         } else if (qat_xform->qat_comp_request_type ==
 283                    QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
 284
 285                 QAT_LOG(ERR, "Dynamic huffman encoding not supported");
 286                 return -EINVAL;
 287         }
 288
 289 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
 290         QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message template:", comp_req,
 291                     sizeof(struct icp_qat_fw_comp_req));
 292 #endif
 293         return 0;
 294 }
 295
 296 /**
 297  * Create driver private_xform data.
 298  *
 299  * @param dev
 300  *   Compressdev device
 301  * @param xform
 302  *   xform data from application
 303  * @param private_xform
 304  *   ptr where handle of pmd's private_xform data should be stored
 305  * @return
 306  *  - if successful returns 0
 307  *    and valid private_xform handle
 308  *  - <0 in error cases
 309  *  - Returns -EINVAL if input parameters are invalid.
 310  *  - Returns -ENOTSUP if comp device does not support the comp transform.
 311  *  - Returns -ENOMEM if the private_xform could not be allocated.
 312  */
 313 int
 314 qat_comp_private_xform_create(struct rte_compressdev *dev,
 315                               const struct rte_comp_xform *xform,
 316                               void **private_xform)
 317 {
 318         struct qat_comp_dev_private *qat = dev->data->dev_private;
 319
 320         if (unlikely(private_xform == NULL)) {
 321                 QAT_LOG(ERR, "QAT: private_xform parameter is NULL");
 322                 return -EINVAL;
 323         }
 324         if (unlikely(qat->xformpool == NULL)) {
 325                 QAT_LOG(ERR, "QAT device has no private_xform mempool");
 326                 return -ENOMEM;
 327         }
 328         if (rte_mempool_get(qat->xformpool, private_xform)) {
 329                 QAT_LOG(ERR, "Couldn't get object from qat xform mempool");
 330                 return -ENOMEM;
 331         }
 332
 333         struct qat_comp_xform *qat_xform =
 334                         (struct qat_comp_xform *)*private_xform;
 335
 336         if (xform->type == RTE_COMP_COMPRESS) {
 337                 if (xform->compress.deflate.huffman ==
 338                                 RTE_COMP_HUFFMAN_DYNAMIC) {
 339                         QAT_LOG(ERR,
 340                         "QAT device doesn't support dynamic compression");
 341                         return -ENOTSUP;
 342                 }
 343
 344                 if (xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED ||
 345                   ((xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_DEFAULT)
 346                                    && qat->interm_buff_mz == NULL))
 347
 348                         qat_xform->qat_comp_request_type =
 349                                         QAT_COMP_REQUEST_FIXED_COMP_STATELESS;
 350
 351
 352         } else {
 353                 qat_xform->qat_comp_request_type = QAT_COMP_REQUEST_DECOMPRESS;
 354         }
 355
 356         qat_xform->checksum_type = xform->compress.chksum;
 357
 358         if (qat_comp_create_templates(qat_xform, qat->interm_buff_mz, xform)) {
 359                 QAT_LOG(ERR, "QAT: Problem with setting compression");
 360                 return -EINVAL;
 361         }
 362         return 0;
 363 }
 364
 365 /**
 366  * Free driver private_xform data.
 367  *
 368  * @param dev
 369  *   Compressdev device
 370  * @param private_xform
 371  *   handle of pmd's private_xform data
 372  * @return
 373  *  - 0 if successful
 374  *  - <0 in error cases
 375  *  - Returns -EINVAL if input parameters are invalid.
 376  */
 377 int
 378 qat_comp_private_xform_free(struct rte_compressdev *dev __rte_unused,
 379                             void *private_xform)
 380 {
 381         struct qat_comp_xform *qat_xform =
 382                         (struct qat_comp_xform *)private_xform;
 383
 384         if (qat_xform) {
 385                 memset(qat_xform, 0, qat_comp_xform_size());
 386                 struct rte_mempool *mp = rte_mempool_from_obj(qat_xform);
 387
 388                 rte_mempool_put(mp, qat_xform);
 389                 return 0;
 390         }
 391         return -EINVAL;
 392 }