drivers/compress/isal/isal_compress_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <rte_bus_vdev.h>
   6 #include <rte_common.h>
   7 #include <rte_malloc.h>
   8 #include <rte_compressdev_pmd.h>
   9
  10 #include "isal_compress_pmd_private.h"
  11
  12 int isal_logtype_driver;
  13
  14 /* Create ISA-L compression device */
  15 static int
  16 compdev_isal_create(const char *name, struct rte_vdev_device *vdev,
  17                 struct rte_compressdev_pmd_init_params *init_params)
  18 {
  19         struct rte_compressdev *dev;
  20
  21         dev = rte_compressdev_pmd_create(name, &vdev->device,
  22                         sizeof(struct isal_comp_private), init_params);
  23         if (dev == NULL) {
  24                 ISAL_PMD_LOG(ERR, "failed to create compressdev vdev");
  25                 return -EFAULT;
  26         }
  27
  28         dev->dev_ops = isal_compress_pmd_ops;
  29
  30         return 0;
  31 }
  32
  33 /** Remove compression device */
  34 static int
  35 compdev_isal_remove_dev(struct rte_vdev_device *vdev)
  36 {
  37         struct rte_compressdev *compdev;
  38         const char *name;
  39
  40         name = rte_vdev_device_name(vdev);
  41         if (name == NULL)
  42                 return -EINVAL;
  43
  44         compdev = rte_compressdev_pmd_get_named_dev(name);
  45         if (compdev == NULL)
  46                 return -ENODEV;
  47
  48         return rte_compressdev_pmd_destroy(compdev);
  49 }
  50
  51 /** Initialise ISA-L compression device */
  52 static int
  53 compdev_isal_probe(struct rte_vdev_device *dev)
  54 {
  55         struct rte_compressdev_pmd_init_params init_params = {
  56                 "",
  57                 rte_socket_id(),
  58         };
  59         const char *name, *args;
  60         int retval;
  61
  62         name = rte_vdev_device_name(dev);
  63         if (name == NULL)
  64                 return -EINVAL;
  65
  66         args = rte_vdev_device_args(dev);
  67
  68         retval = rte_compressdev_pmd_parse_input_args(&init_params, args);
  69         if (retval) {
  70                 ISAL_PMD_LOG(ERR,
  71                         "Failed to parse initialisation arguments[%s]\n", args);
  72                 return -EINVAL;
  73         }
  74
  75         return compdev_isal_create(name, dev, &init_params);
  76 }
  77
  78 static struct rte_vdev_driver compdev_isal_pmd_drv = {
  79         .probe = compdev_isal_probe,
  80         .remove = compdev_isal_remove_dev,
  81 };
  82
  83 RTE_PMD_REGISTER_VDEV(COMPDEV_NAME_ISAL_PMD, compdev_isal_pmd_drv);
  84 RTE_PMD_REGISTER_PARAM_STRING(COMPDEV_NAME_ISAL_PMD,
  85         "socket_id=<int>");
  86
  87 RTE_INIT(isal_init_log);
  88
  89 static void
  90 isal_init_log(void)
  91 {
  92         isal_logtype_driver = rte_log_register("comp_isal");
  93         if (isal_logtype_driver >= 0)
  94                 rte_log_set_level(isal_logtype_driver, RTE_LOG_INFO);
  95 }