compress/qat: add xform processing
authorFiona Trahe <fiona.trahe@intel.com>
Fri, 13 Jul 2018 02:28:13 +0000 (03:28 +0100)
committerPablo de Lara <pablo.de.lara.guarch@intel.com>
Mon, 23 Jul 2018 23:48:10 +0000 (01:48 +0200)
Add code to process compressdev rte_comp_xforms, creating
private qat_comp_xforms with prepared firmware message templates.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak@intel.com>
drivers/compress/qat/qat_comp.c
drivers/compress/qat/qat_comp.h
drivers/compress/qat/qat_comp_pmd.h

index caa1158..cb2005a 100644 (file)
@@ -2,4 +2,243 @@
  * Copyright(c) 2018 Intel Corporation
  */
 
+
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_hexdump.h>
+#include <rte_comp.h>
+#include <rte_bus_pci.h>
+#include <rte_byteorder.h>
+#include <rte_memcpy.h>
+#include <rte_common.h>
+#include <rte_spinlock.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+
+#include "qat_logs.h"
 #include "qat_comp.h"
+#include "qat_comp_pmd.h"
+
+unsigned int
+qat_comp_xform_size(void)
+{
+       return RTE_ALIGN_CEIL(sizeof(struct qat_comp_xform), 8);
+}
+
+static void qat_comp_create_req_hdr(struct icp_qat_fw_comn_req_hdr *header,
+                                   enum qat_comp_request_type request)
+{
+       if (request == QAT_COMP_REQUEST_FIXED_COMP_STATELESS)
+               header->service_cmd_id = ICP_QAT_FW_COMP_CMD_STATIC;
+       else if (request == QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS)
+               header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DYNAMIC;
+       else if (request == QAT_COMP_REQUEST_DECOMPRESS)
+               header->service_cmd_id = ICP_QAT_FW_COMP_CMD_DECOMPRESS;
+
+       header->service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_COMP;
+       header->hdr_flags =
+           ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET);
+
+       header->comn_req_flags = ICP_QAT_FW_COMN_FLAGS_BUILD(
+           QAT_COMN_CD_FLD_TYPE_16BYTE_DATA, QAT_COMN_PTR_TYPE_FLAT);
+}
+
+static int qat_comp_create_templates(struct qat_comp_xform *qat_xform,
+                       const struct rte_memzone *interm_buff_mz __rte_unused,
+                       const struct rte_comp_xform *xform)
+{
+       struct icp_qat_fw_comp_req *comp_req;
+       int comp_level, algo;
+       uint32_t req_par_flags;
+       int direction = ICP_QAT_HW_COMPRESSION_DIR_COMPRESS;
+
+       if (unlikely(qat_xform == NULL)) {
+               QAT_LOG(ERR, "Session was not created for this device");
+               return -EINVAL;
+       }
+
+       if (qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
+               direction = ICP_QAT_HW_COMPRESSION_DIR_DECOMPRESS;
+               comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
+               req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+                               ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
+                               ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_NO_CNV,
+                               ICP_QAT_FW_COMP_NO_CNV_RECOVERY);
+
+       } else {
+               if (xform->compress.level == RTE_COMP_LEVEL_PMD_DEFAULT)
+                       comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+               else if (xform->compress.level == 1)
+                       comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_1;
+               else if (xform->compress.level == 2)
+                       comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_4;
+               else if (xform->compress.level == 3)
+                       comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_8;
+               else if (xform->compress.level >= 4 &&
+                        xform->compress.level <= 9)
+                       comp_level = ICP_QAT_HW_COMPRESSION_DEPTH_16;
+               else {
+                       QAT_LOG(ERR, "compression level not supported");
+                       return -EINVAL;
+               }
+               req_par_flags = ICP_QAT_FW_COMP_REQ_PARAM_FLAGS_BUILD(
+                               ICP_QAT_FW_COMP_SOP, ICP_QAT_FW_COMP_EOP,
+                               ICP_QAT_FW_COMP_BFINAL, ICP_QAT_FW_COMP_CNV,
+                               ICP_QAT_FW_COMP_CNV_RECOVERY);
+       }
+
+       switch (xform->compress.algo) {
+       case RTE_COMP_ALGO_DEFLATE:
+               algo = ICP_QAT_HW_COMPRESSION_ALGO_DEFLATE;
+               break;
+       case RTE_COMP_ALGO_LZS:
+       default:
+               /* RTE_COMP_NULL */
+               QAT_LOG(ERR, "compression algorithm not supported");
+               return -EINVAL;
+       }
+
+       comp_req = &qat_xform->qat_comp_req_tmpl;
+
+       /* Initialize header */
+       qat_comp_create_req_hdr(&comp_req->comn_hdr,
+                                       qat_xform->qat_comp_request_type);
+
+       comp_req->comn_hdr.serv_specif_flags = ICP_QAT_FW_COMP_FLAGS_BUILD(
+           ICP_QAT_FW_COMP_STATELESS_SESSION,
+           ICP_QAT_FW_COMP_NOT_AUTO_SELECT_BEST,
+           ICP_QAT_FW_COMP_NOT_ENH_AUTO_SELECT_BEST,
+           ICP_QAT_FW_COMP_NOT_DISABLE_TYPE0_ENH_AUTO_SELECT_BEST,
+           ICP_QAT_FW_COMP_DISABLE_SECURE_RAM_USED_AS_INTMD_BUF);
+
+       comp_req->cd_pars.sl.comp_slice_cfg_word[0] =
+           ICP_QAT_HW_COMPRESSION_CONFIG_BUILD(
+               direction,
+               /* In CPM 1.6 only valid mode ! */
+               ICP_QAT_HW_COMPRESSION_DELAYED_MATCH_ENABLED, algo,
+               /* Translate level to depth */
+               comp_level, ICP_QAT_HW_COMPRESSION_FILE_TYPE_0);
+
+       comp_req->comp_pars.initial_adler = 1;
+       comp_req->comp_pars.initial_crc32 = 0;
+       comp_req->comp_pars.req_par_flags = req_par_flags;
+
+
+       if (qat_xform->qat_comp_request_type ==
+                       QAT_COMP_REQUEST_FIXED_COMP_STATELESS ||
+           qat_xform->qat_comp_request_type == QAT_COMP_REQUEST_DECOMPRESS) {
+               ICP_QAT_FW_COMN_NEXT_ID_SET(&comp_req->comp_cd_ctrl,
+                                           ICP_QAT_FW_SLICE_DRAM_WR);
+               ICP_QAT_FW_COMN_CURR_ID_SET(&comp_req->comp_cd_ctrl,
+                                           ICP_QAT_FW_SLICE_COMP);
+       } else if (qat_xform->qat_comp_request_type ==
+                  QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS) {
+
+               QAT_LOG(ERR, "Dynamic huffman encoding not supported");
+               return -EINVAL;
+       }
+
+#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
+       QAT_DP_HEXDUMP_LOG(DEBUG, "qat compression message template:", comp_req,
+                   sizeof(struct icp_qat_fw_comp_req));
+#endif
+       return 0;
+}
+
+/**
+ * Create driver private_xform data.
+ *
+ * @param dev
+ *   Compressdev device
+ * @param xform
+ *   xform data from application
+ * @param private_xform
+ *   ptr where handle of pmd's private_xform data should be stored
+ * @return
+ *  - if successful returns 0
+ *    and valid private_xform handle
+ *  - <0 in error cases
+ *  - Returns -EINVAL if input parameters are invalid.
+ *  - Returns -ENOTSUP if comp device does not support the comp transform.
+ *  - Returns -ENOMEM if the private_xform could not be allocated.
+ */
+int
+qat_comp_private_xform_create(struct rte_compressdev *dev,
+                             const struct rte_comp_xform *xform,
+                             void **private_xform)
+{
+       struct qat_comp_dev_private *qat = dev->data->dev_private;
+
+       if (unlikely(private_xform == NULL)) {
+               QAT_LOG(ERR, "QAT: private_xform parameter is NULL");
+               return -EINVAL;
+       }
+       if (unlikely(qat->xformpool == NULL)) {
+               QAT_LOG(ERR, "QAT device has no private_xform mempool");
+               return -ENOMEM;
+       }
+       if (rte_mempool_get(qat->xformpool, private_xform)) {
+               QAT_LOG(ERR, "Couldn't get object from qat xform mempool");
+               return -ENOMEM;
+       }
+
+       struct qat_comp_xform *qat_xform =
+                       (struct qat_comp_xform *)*private_xform;
+
+       if (xform->type == RTE_COMP_COMPRESS) {
+               if (xform->compress.deflate.huffman ==
+                               RTE_COMP_HUFFMAN_DYNAMIC) {
+                       QAT_LOG(ERR,
+                       "QAT device doesn't support dynamic compression");
+                       return -ENOTSUP;
+               }
+
+               if (xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED ||
+                 ((xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_DEFAULT)
+                                  && qat->interm_buff_mz == NULL))
+
+                       qat_xform->qat_comp_request_type =
+                                       QAT_COMP_REQUEST_FIXED_COMP_STATELESS;
+
+
+       } else {
+               qat_xform->qat_comp_request_type = QAT_COMP_REQUEST_DECOMPRESS;
+       }
+
+       qat_xform->checksum_type = xform->compress.chksum;
+
+       if (qat_comp_create_templates(qat_xform, qat->interm_buff_mz, xform)) {
+               QAT_LOG(ERR, "QAT: Problem with setting compression");
+               return -EINVAL;
+       }
+       return 0;
+}
+
+/**
+ * Free driver private_xform data.
+ *
+ * @param dev
+ *   Compressdev device
+ * @param private_xform
+ *   handle of pmd's private_xform data
+ * @return
+ *  - 0 if successful
+ *  - <0 in error cases
+ *  - Returns -EINVAL if input parameters are invalid.
+ */
+int
+qat_comp_private_xform_free(struct rte_compressdev *dev __rte_unused,
+                           void *private_xform)
+{
+       struct qat_comp_xform *qat_xform =
+                       (struct qat_comp_xform *)private_xform;
+
+       if (qat_xform) {
+               memset(qat_xform, 0, qat_comp_xform_size());
+               struct rte_mempool *mp = rte_mempool_from_obj(qat_xform);
+
+               rte_mempool_put(mp, qat_xform);
+               return 0;
+       }
+       return -EINVAL;
+}
index 89c475e..0f58a76 100644 (file)
 #include <rte_compressdev.h>
 #include <rte_compressdev_pmd.h>
 
+#include "icp_qat_hw.h"
+#include "icp_qat_fw_comp.h"
+#include "icp_qat_fw_la.h"
+
+enum qat_comp_request_type {
+       QAT_COMP_REQUEST_FIXED_COMP_STATELESS,
+       QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS,
+       QAT_COMP_REQUEST_DECOMPRESS,
+       REQ_COMP_END
+};
+
+
+struct qat_comp_xform {
+       struct icp_qat_fw_comp_req qat_comp_req_tmpl;
+       enum qat_comp_request_type qat_comp_request_type;
+       enum rte_comp_checksum_type checksum_type;
+};
+
+
+int
+qat_comp_private_xform_create(struct rte_compressdev *dev,
+                             const struct rte_comp_xform *xform,
+                             void **private_xform);
+
+int
+qat_comp_private_xform_free(struct rte_compressdev *dev, void *private_xform);
+
+unsigned int
+qat_comp_xform_size(void);
+
 #endif
 #endif
index 56b5f18..3d15d7b 100644 (file)
 #include <rte_compressdev.h>
 #include <rte_compressdev_pmd.h>
 
+/** private data structure for a QAT compression device.
+ * This QAT device is a device offering only a compression service,
+ * there can be one of these on each qat_pci_device (VF).
+ */
+struct qat_comp_dev_private {
+       struct qat_pci_device *qat_dev;
+       /**< The qat pci device hosting the service */
+       struct rte_compressdev *compressdev;
+       /**< The pointer to this compression device structure */
+       const struct rte_memzone *interm_buff_mz;
+       /**< The device's memory for intermediate buffers */
+       struct rte_mempool *xformpool;
+       /**< The device's pool for qat_comp_xforms */
+
+};
+
 #endif
 #endif /* _QAT_COMP_PMD_H_ */