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                         op->dst.offset;
  49
  50         if (op->m_src->next != NULL || op->m_dst->next != NULL) {
  51                 /* sgl */
  52                 int ret = 0;
  53
  54                 ICP_QAT_FW_COMN_PTR_TYPE_SET(comp_req->comn_hdr.comn_req_flags,
  55                                 QAT_COMN_PTR_TYPE_SGL);
  56
  57                 ret = qat_sgl_fill_array(op->m_src,
  58                                 op->src.offset,
  59                                 &cookie->qat_sgl_src,
  60                                 op->src.length,
  61                                 RTE_PMD_QAT_COMP_SGL_MAX_SEGMENTS);
  62                 if (ret) {
  63                         QAT_DP_LOG(ERR, "QAT PMD Cannot fill source sgl array");
  64                         return ret;
  65                 }
  66
  67                 ret = qat_sgl_fill_array(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 dest. 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 = op->src.length;
  89                 comp_req->comn_mid.dst_length =
  90                                 comp_req->comp_pars.out_buffer_sz;
  91
  92                 comp_req->comn_mid.src_data_addr =
  93                     rte_pktmbuf_mtophys_offset(op->m_src, op->src.offset);
  94                 comp_req->comn_mid.dest_data_addr =
  95                     rte_pktmbuf_mtophys_offset(op->m_dst, op->dst.offset);
  96         }
  97
  98 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
  99         QAT_DP_LOG(DEBUG, "Direction: %s",
 100             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
 101                             "decompression" : "compression");
 102         QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message:", comp_req,
 103                     sizeof(struct icp_qat_fw_comp_req));
 104 #endif
 105         return 0;
 106 }
 107
 108 int
 109 qat_comp_process_response(void **op, uint8_t *resp)
 110 {
 111         struct icp_qat_fw_comp_resp *resp_msg =
 112                         (struct icp_qat_fw_comp_resp *)resp;
 113         struct rte_comp_op *rx_op = (struct rte_comp_op *)(uintptr_t)
 114                         (resp_msg->opaque_data);
 115         struct qat_comp_xform *qat_xform = (struct qat_comp_xform *)
 116                                 (rx_op->private_xform);
 117
 118 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
 119         QAT_DP_LOG(DEBUG, "Direction: %s",
 120             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS ?
 121             "decompression" : "compression");
 122         QAT_DP_HEXDUMP_LOG(DEBUG,  "qat_response:", (uint8_t *)resp_msg,
 123                         sizeof(struct icp_qat_fw_comp_resp));
 124 #endif
 125
 126         if (likely(qat_xform->qat_comp_request_type
 127                         != QAT_COMP_REQUEST_DECOMPRESS)) {
 128                 if (unlikely(ICP_QAT_FW_COMN_HDR_CNV_FLAG_GET(
 129                                 resp_msg->comn_resp.hdr_flags)
 130                                         == ICP_QAT_FW_COMP_NO_CNV)) {
 131                         rx_op->status = RTE_COMP_OP_STATUS_ERROR;
 132                         rx_op->debug_status = ERR_CODE_QAT_COMP_WRONG_FW;
 133                         *op = (void *)rx_op;
 134                         QAT_DP_LOG(ERR, "QAT has wrong firmware");
 135                         return 0;
 136                 }
 137         }
 138
 139         if ((ICP_QAT_FW_COMN_RESP_CMP_STAT_GET(resp_msg->comn_resp.comn_status)
 140                 | ICP_QAT_FW_COMN_RESP_XLAT_STAT_GET(
 141                                 resp_msg->comn_resp.comn_status)) !=
 142                                 ICP_QAT_FW_COMN_STATUS_FLAG_OK) {
 143
 144                 rx_op->status = RTE_COMP_OP_STATUS_ERROR;
 145                 rx_op->debug_status =
 146                         *((uint16_t *)(&resp_msg->comn_resp.comn_error));
 147         } else {
 148                 struct qat_comp_xform *qat_xform = rx_op->private_xform;
 149                 struct icp_qat_fw_resp_comp_pars *comp_resp =
 150                   (struct icp_qat_fw_resp_comp_pars *)&resp_msg->comp_resp_pars;
 151
 152                 rx_op->status = RTE_COMP_OP_STATUS_SUCCESS;
 153                 rx_op->consumed = comp_resp->input_byte_counter;
 154                 rx_op->produced = comp_resp->output_byte_counter;
 155
 156                 if (qat_xform->checksum_type != RTE_COMP_CHECKSUM_NONE) {
 157                         if (qat_xform->checksum_type == RTE_COMP_CHECKSUM_CRC32)
 158                                 rx_op->output_chksum = comp_resp->curr_crc32;
 159                         else if (qat_xform->checksum_type ==
 160                                         RTE_COMP_CHECKSUM_ADLER32)
 161                                 rx_op->output_chksum = comp_resp->curr_adler_32;
 162                         else
 163                                 rx_op->output_chksum = comp_resp->curr_chksum;
 164                 }
 165         }
 166         *op = (void *)rx_op;
 167
 168         return 0;
 169 }
 170
 171 unsigned int
 172 qat_comp_xform_size(void)
 173 {
 174         return RTE_ALIGN_CEIL(sizeof(struct qat_comp_xform), 8);
 175 }
 176
 177 static void qat_comp_create_req_hdr(struct icp_qat_fw_comn_req_hdr *header,
 178                                     enum qat_comp_request_type request)
 179 {
 180         if (request == QAT_COMP_REQUEST_FIXED_COMP_STATELESS)
 181                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_STATIC;
 182         else if (request == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)
 183                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DYNAMIC;
 184         else if (request == QAT_COMP_REQUEST_DECOMPRESS)
 185                 header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DECOMPRESS;
 186
 187         header->service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_COMP;
 188         header->hdr_flags =
 189             ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET);
 190
 191         header->comn_req_flags = ICP_QAT_FW_COMN_FLAGS_BUILD(
 192             QAT_COMN_CD_FLD_TYPE_16BYTE_DATA, QAT_COMN_PTR_TYPE_FLAT);
 193 }
 194
 195 static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
 196                         const struct rte_memzone *interm_buff_mz __rte_unused,
 197                         const struct rte_comp_xform *xform)
 198 {
 199         struct icp_qat_fw_comp_req *comp_req;
 200         int comp_level, algo;
 201         uint32_t req_par_flags;
 202         int direction = ICP_QAT_HW_COMPRESSION_DIR_COMPRESS;
 203
 204         if (unlikely(qat_xform == NULL)) {
 205                 QAT_LOG(ERR, "Session was not created for this device");
 206                 return -EINVAL;
 207         }
 208
 209         if (qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
 210                 direction = ICP_QAT_HW_COMPRESSION_DIR_DECOMPRESS;
 211                 comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
 212                 req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
 213                                 ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
 214                                 ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_NO_CNV,
 215                                 ICP_QAT_FW_COMP_NO_CNV_RECOVERY);
 216
 217         } else {
 218                 if (xform->compress.level == RTE_COMP_LEVEL_PMD_DEFAULT)
 219                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
 220                 else if (xform->compress.level == 1)
 221                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
 222                 else if (xform->compress.level == 2)
 223                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_4;
 224                 else if (xform->compress.level == 3)
 225                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
 226                 else if (xform->compress.level >= 4 &&
 227                          xform->compress.level <= 9)
 228                         comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_16;
 229                 else {
 230                         QAT_LOG(ERR, "compression level not supported");
 231                         return -EINVAL;
 232                 }
 233                 req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
 234                                 ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
 235                                 ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_CNV,
 236                                 ICP_QAT_FW_COMP_CNV_RECOVERY);
 237         }
 238
 239         switch (xform->compress.algo) {
 240         case RTE_COMP_ALGO_DEFLATE:
 241                 algo = ICP_QAT_HW_COMPRESSION_ALGO_DEFLATE;
 242                 break;
 243         case RTE_COMP_ALGO_LZS:
 244         default:
 245                 /* RTE_COMP_NULL */
 246                 QAT_LOG(ERR, "compression algorithm not supported");
 247                 return -EINVAL;
 248         }
 249
 250         comp_req = &qat_xform->qat_comp_req_tmpl;
 251
 252         /* Initialize header */
 253         qat_comp_create_req_hdr(&comp_req->comn_hdr,
 254                                         qat_xform->qat_comp_request_type);
 255
 256         comp_req->comn_hdr.serv_specif_flags = ICP_QAT_FW_COMP_FLAGS_BUILD(
 257             ICP_QAT_FW_COMP_STATELESS_SESSION,
 258             ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
 259             ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
 260             ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
 261             ICP_QAT_FW_COMP_DISABLE_SECURE_RAM_USED_AS_INTMD_BUF);
 262
 263         comp_req->cd_pars.sl.comp_slice_cfg_word[0] =
 264             ICP_QAT_HW_COMPRESSION_CONFIG_BUILD(
 265                 direction,
 266                 /* In CPM 1.6 only valid mode ! */
 267                 ICP_QAT_HW_COMPRESSION_DELAYED_MATCH_ENABLED, algo,
 268                 /* Translate level to depth */
 269                 comp_level, ICP_QAT_HW_COMPRESSION_FILE_TYPE_0);
 270
 271         comp_req->comp_pars.initial_adler = 1;
 272         comp_req->comp_pars.initial_crc32 = 0;
 273         comp_req->comp_pars.req_par_flags = req_par_flags;
 274
 275
 276         if (qat_xform->qat_comp_request_type ==
 277                         QAT_COMP_REQUEST_FIXED_COMP_STATELESS ||
 278             qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
 279                 ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->comp_cd_ctrl,
 280                                             ICP_QAT_FW_SLICE_DRAM_WR);
 281                 ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->comp_cd_ctrl,
 282                                             ICP_QAT_FW_SLICE_COMP);
 283         } else if (qat_xform->qat_comp_request_type ==
 284                    QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
 285
 286                 QAT_LOG(ERR, "Dynamic huffman encoding not supported");
 287                 return -EINVAL;
 288         }
 289
 290 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
 291         QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message template:", comp_req,
 292                     sizeof(struct icp_qat_fw_comp_req));
 293 #endif
 294         return 0;
 295 }
 296
 297 /**
 298  * Create driver private_xform data.
 299  *
 300  * @param dev
 301  *   Compressdev device
 302  * @param xform
 303  *   xform data from application
 304  * @param private_xform
 305  *   ptr where handle of pmd's private_xform data should be stored
 306  * @return
 307  *  - if successful returns 0
 308  *    and valid private_xform handle
 309  *  - <0 in error cases
 310  *  - Returns -EINVAL if input parameters are invalid.
 311  *  - Returns -ENOTSUP if comp device does not support the comp transform.
 312  *  - Returns -ENOMEM if the private_xform could not be allocated.
 313  */
 314 int
 315 qat_comp_private_xform_create(struct rte_compressdev *dev,
 316                               const struct rte_comp_xform *xform,
 317                               void **private_xform)
 318 {
 319         struct qat_comp_dev_private *qat = dev->data->dev_private;
 320
 321         if (unlikely(private_xform == NULL)) {
 322                 QAT_LOG(ERR, "QAT: private_xform parameter is NULL");
 323                 return -EINVAL;
 324         }
 325         if (unlikely(qat->xformpool == NULL)) {
 326                 QAT_LOG(ERR, "QAT device has no private_xform mempool");
 327                 return -ENOMEM;
 328         }
 329         if (rte_mempool_get(qat->xformpool, private_xform)) {
 330                 QAT_LOG(ERR, "Couldn't get object from qat xform mempool");
 331                 return -ENOMEM;
 332         }
 333
 334         struct qat_comp_xform *qat_xform =
 335                         (struct qat_comp_xform *)*private_xform;
 336
 337         if (xform->type == RTE_COMP_COMPRESS) {
 338                 if (xform->compress.deflate.huffman ==
 339                                 RTE_COMP_HUFFMAN_DYNAMIC) {
 340                         QAT_LOG(ERR,
 341                         "QAT device doesn't support dynamic compression");
 342                         return -ENOTSUP;
 343                 }
 344
 345                 if (xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED ||
 346                   ((xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_DEFAULT)
 347                                    && qat->interm_buff_mz == NULL))
 348
 349                         qat_xform->qat_comp_request_type =
 350                                         QAT_COMP_REQUEST_FIXED_COMP_STATELESS;
 351
 352
 353         } else {
 354                 qat_xform->qat_comp_request_type = QAT_COMP_REQUEST_DECOMPRESS;
 355         }
 356
 357         qat_xform->checksum_type = xform->compress.chksum;
 358
 359         if (qat_comp_create_templates(qat_xform, qat->interm_buff_mz, xform)) {
 360                 QAT_LOG(ERR, "QAT: Problem with setting compression");
 361                 return -EINVAL;
 362         }
 363         return 0;
 364 }
 365
 366 /**
 367  * Free driver private_xform data.
 368  *
 369  * @param dev
 370  *   Compressdev device
 371  * @param private_xform
 372  *   handle of pmd's private_xform data
 373  * @return
 374  *  - 0 if successful
 375  *  - <0 in error cases
 376  *  - Returns -EINVAL if input parameters are invalid.
 377  */
 378 int
 379 qat_comp_private_xform_free(struct rte_compressdev *dev __rte_unused,
 380                             void *private_xform)
 381 {
 382         struct qat_comp_xform *qat_xform =
 383                         (struct qat_comp_xform *)private_xform;
 384
 385         if (qat_xform) {
 386                 memset(qat_xform, 0, qat_comp_xform_size());
 387                 struct rte_mempool *mp = rte_mempool_from_obj(qat_xform);
 388
 389                 rte_mempool_put(mp, qat_xform);
 390                 return 0;
 391         }
 392         return -EINVAL;
 393 }