drivers/crypto/cnxk/cnxk_cryptodev_devargs.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include <rte_devargs.h>
   6
   7 #include "cnxk_cryptodev.h"
   8
   9 #define CNXK_MAX_QPS_LIMIT     "max_qps_limit"
  10 #define CNXK_MAX_QPS_LIMIT_MIN 1
  11 #define CNXK_MAX_QPS_LIMIT_MAX (ROC_CPT_MAX_LFS - 1)
  12
  13 static int
  14 parse_max_qps_limit(const char *key, const char *value, void *extra_args)
  15 {
  16         RTE_SET_USED(key);
  17         uint32_t val;
  18
  19         val = atoi(value);
  20
  21         if (val < CNXK_MAX_QPS_LIMIT_MIN || val > CNXK_MAX_QPS_LIMIT_MAX)
  22                 return -EINVAL;
  23
  24         *(uint16_t *)extra_args = val;
  25
  26         return 0;
  27 }
  28
  29 int
  30 cnxk_cpt_parse_devargs(struct rte_devargs *devargs, struct cnxk_cpt_vf *vf)
  31 {
  32         uint16_t max_qps_limit = CNXK_MAX_QPS_LIMIT_MAX;
  33         struct rte_kvargs *kvlist;
  34         int rc;
  35
  36         if (devargs == NULL)
  37                 goto null_devargs;
  38
  39         kvlist = rte_kvargs_parse(devargs->args, NULL);
  40         if (kvlist == NULL)
  41                 goto exit;
  42
  43         rc = rte_kvargs_process(kvlist, CNXK_MAX_QPS_LIMIT,
  44                                 &parse_max_qps_limit, &max_qps_limit);
  45         if (rc < 0) {
  46                 plt_err("max_qps_limit should in the range <%d-%d>",
  47                         CNXK_MAX_QPS_LIMIT_MIN, CNXK_MAX_QPS_LIMIT_MAX);
  48                 rte_kvargs_free(kvlist);
  49                 goto exit;
  50         }
  51         rte_kvargs_free(kvlist);
  52
  53 null_devargs:
  54         vf->max_qps_limit = max_qps_limit;
  55         return 0;
  56
  57 exit:
  58         return -EINVAL;
  59 }
  60
  61 RTE_PMD_REGISTER_PARAM_STRING(crypto_cnxk, CNXK_MAX_QPS_LIMIT "=<1-63>");