ceph/src/spdk/dpdk/drivers/net/sfc/base/ef10_intr.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2012-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  */
   6
   7 #include "efx.h"
   8 #include "efx_impl.h"
   9
  10
  11 #if EFX_OPTS_EF10()
  12
  13         __checkReturn   efx_rc_t
  14 ef10_intr_init(
  15         __in            efx_nic_t *enp,
  16         __in            efx_intr_type_t type,
  17         __in            efsys_mem_t *esmp)
  18 {
  19         _NOTE(ARGUNUSED(enp, type, esmp))
  20         return (0);
  21 }
  22
  23
  24                         void
  25 ef10_intr_enable(
  26         __in            efx_nic_t *enp)
  27 {
  28         _NOTE(ARGUNUSED(enp))
  29 }
  30
  31
  32                         void
  33 ef10_intr_disable(
  34         __in            efx_nic_t *enp)
  35 {
  36         _NOTE(ARGUNUSED(enp))
  37 }
  38
  39
  40                         void
  41 ef10_intr_disable_unlocked(
  42         __in            efx_nic_t *enp)
  43 {
  44         _NOTE(ARGUNUSED(enp))
  45 }
  46
  47
  48 static  __checkReturn   efx_rc_t
  49 efx_mcdi_trigger_interrupt(
  50         __in            efx_nic_t *enp,
  51         __in            unsigned int level)
  52 {
  53         efx_mcdi_req_t req;
  54         EFX_MCDI_DECLARE_BUF(payload, MC_CMD_TRIGGER_INTERRUPT_IN_LEN,
  55                 MC_CMD_TRIGGER_INTERRUPT_OUT_LEN);
  56         efx_rc_t rc;
  57
  58         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
  59
  60         if (level >= enp->en_nic_cfg.enc_intr_limit) {
  61                 rc = EINVAL;
  62                 goto fail1;
  63         }
  64
  65         req.emr_cmd = MC_CMD_TRIGGER_INTERRUPT;
  66         req.emr_in_buf = payload;
  67         req.emr_in_length = MC_CMD_TRIGGER_INTERRUPT_IN_LEN;
  68         req.emr_out_buf = payload;
  69         req.emr_out_length = MC_CMD_TRIGGER_INTERRUPT_OUT_LEN;
  70
  71         MCDI_IN_SET_DWORD(req, TRIGGER_INTERRUPT_IN_INTR_LEVEL, level);
  72
  73         efx_mcdi_execute(enp, &req);
  74
  75         if (req.emr_rc != 0) {
  76                 rc = req.emr_rc;
  77                 goto fail2;
  78         }
  79
  80         return (0);
  81
  82 fail2:
  83         EFSYS_PROBE(fail2);
  84
  85 fail1:
  86         EFSYS_PROBE1(fail1, efx_rc_t, rc);
  87
  88         return (rc);
  89 }
  90
  91         __checkReturn   efx_rc_t
  92 ef10_intr_trigger(
  93         __in            efx_nic_t *enp,
  94         __in            unsigned int level)
  95 {
  96         efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
  97         efx_rc_t rc;
  98
  99         if (encp->enc_bug41750_workaround) {
 100                 /*
 101                  * bug 41750: Test interrupts don't work on Greenport
 102                  * bug 50084: Test interrupts don't work on VFs
 103                  */
 104                 rc = ENOTSUP;
 105                 goto fail1;
 106         }
 107
 108         if ((rc = efx_mcdi_trigger_interrupt(enp, level)) != 0)
 109                 goto fail2;
 110
 111         return (0);
 112
 113 fail2:
 114         EFSYS_PROBE(fail2);
 115 fail1:
 116         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 117
 118         return (rc);
 119 }
 120
 121                         void
 122 ef10_intr_status_line(
 123         __in            efx_nic_t *enp,
 124         __out           boolean_t *fatalp,
 125         __out           uint32_t *qmaskp)
 126 {
 127         efx_dword_t dword;
 128
 129         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 130
 131         /* Read the queue mask and implicitly acknowledge the interrupt. */
 132         EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE);
 133         *qmaskp = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
 134
 135         EFSYS_PROBE1(qmask, uint32_t, *qmaskp);
 136
 137         *fatalp = B_FALSE;
 138 }
 139
 140                         void
 141 ef10_intr_status_message(
 142         __in            efx_nic_t *enp,
 143         __in            unsigned int message,
 144         __out           boolean_t *fatalp)
 145 {
 146         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 147
 148         _NOTE(ARGUNUSED(enp, message))
 149
 150         /* EF10 fatal errors are reported via events */
 151         *fatalp = B_FALSE;
 152 }
 153
 154                         void
 155 ef10_intr_fatal(
 156         __in            efx_nic_t *enp)
 157 {
 158         /* EF10 fatal errors are reported via events */
 159         _NOTE(ARGUNUSED(enp))
 160 }
 161
 162                         void
 163 ef10_intr_fini(
 164         __in            efx_nic_t *enp)
 165 {
 166         _NOTE(ARGUNUSED(enp))
 167 }
 168
 169 #endif  /* EFX_OPTS_EF10() */