drivers/crypto/nitrox/nitrox_qp.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <rte_cryptodev.h>
   6 #include <rte_malloc.h>
   7
   8 #include "nitrox_qp.h"
   9 #include "nitrox_hal.h"
  10 #include "nitrox_logs.h"
  11
  12 #define MAX_CMD_QLEN 16384
  13
  14 static int
  15 nitrox_setup_ridq(struct nitrox_qp *qp, int socket_id)
  16 {
  17         size_t ridq_size = qp->count * sizeof(*qp->ridq);
  18
  19         qp->ridq = rte_zmalloc_socket("nitrox ridq", ridq_size,
  20                                    RTE_CACHE_LINE_SIZE,
  21                                    socket_id);
  22         if (!qp->ridq) {
  23                 NITROX_LOG(ERR, "Failed to create rid queue\n");
  24                 return -ENOMEM;
  25         }
  26
  27         return 0;
  28 }
  29
  30 int
  31 nitrox_qp_setup(struct nitrox_qp *qp, uint8_t *bar_addr, const char *dev_name,
  32                 uint32_t nb_descriptors, uint8_t instr_size, int socket_id)
  33 {
  34         int err;
  35         uint32_t count;
  36
  37         RTE_SET_USED(bar_addr);
  38         RTE_SET_USED(instr_size);
  39         count = rte_align32pow2(nb_descriptors);
  40         if (count > MAX_CMD_QLEN) {
  41                 NITROX_LOG(ERR, "%s: Number of descriptors too big %d,"
  42                            " greater than max queue length %d\n",
  43                            dev_name, count,
  44                            MAX_CMD_QLEN);
  45                 return -EINVAL;
  46         }
  47
  48         qp->count = count;
  49         qp->head = qp->tail = 0;
  50         rte_atomic16_init(&qp->pending_count);
  51         err = nitrox_setup_ridq(qp, socket_id);
  52         if (err)
  53                 goto ridq_err;
  54
  55         return 0;
  56
  57 ridq_err:
  58         return err;
  59
  60 }
  61
  62 static void
  63 nitrox_release_ridq(struct nitrox_qp *qp)
  64 {
  65         rte_free(qp->ridq);
  66 }
  67
  68 int
  69 nitrox_qp_release(struct nitrox_qp *qp, uint8_t *bar_addr)
  70 {
  71         RTE_SET_USED(bar_addr);
  72         nitrox_release_ridq(qp);
  73         return 0;
  74 }