1 /*- 2 * Copyright (c) 2012-2016 Solarflare Communications Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * The views and conclusions contained in the software and documentation are 27 * those of the authors and should not be interpreted as representing official 28 * policies, either expressed or implied, of the FreeBSD Project. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include "efx.h" 35 #include "efx_impl.h" 36 37 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 38 39 __checkReturn efx_rc_t 40 ef10_intr_init( 41 __in efx_nic_t *enp, 42 __in efx_intr_type_t type, 43 __in efsys_mem_t *esmp) 44 { 45 _NOTE(ARGUNUSED(enp, type, esmp)) 46 return (0); 47 } 48 49 void 50 ef10_intr_enable( 51 __in efx_nic_t *enp) 52 { 53 _NOTE(ARGUNUSED(enp)) 54 } 55 56 void 57 ef10_intr_disable( 58 __in efx_nic_t *enp) 59 { 60 _NOTE(ARGUNUSED(enp)) 61 } 62 63 void 64 ef10_intr_disable_unlocked( 65 __in efx_nic_t *enp) 66 { 67 _NOTE(ARGUNUSED(enp)) 68 } 69 70 static __checkReturn efx_rc_t 71 efx_mcdi_trigger_interrupt( 72 __in efx_nic_t *enp, 73 __in unsigned int level) 74 { 75 efx_mcdi_req_t req; 76 EFX_MCDI_DECLARE_BUF(payload, MC_CMD_TRIGGER_INTERRUPT_IN_LEN, 77 MC_CMD_TRIGGER_INTERRUPT_OUT_LEN); 78 efx_rc_t rc; 79 80 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 81 enp->en_family == EFX_FAMILY_MEDFORD || 82 enp->en_family == EFX_FAMILY_MEDFORD2); 83 84 if (level >= enp->en_nic_cfg.enc_intr_limit) { 85 rc = EINVAL; 86 goto fail1; 87 } 88 89 req.emr_cmd = MC_CMD_TRIGGER_INTERRUPT; 90 req.emr_in_buf = payload; 91 req.emr_in_length = MC_CMD_TRIGGER_INTERRUPT_IN_LEN; 92 req.emr_out_buf = payload; 93 req.emr_out_length = MC_CMD_TRIGGER_INTERRUPT_OUT_LEN; 94 95 MCDI_IN_SET_DWORD(req, TRIGGER_INTERRUPT_IN_INTR_LEVEL, level); 96 97 efx_mcdi_execute(enp, &req); 98 99 if (req.emr_rc != 0) { 100 rc = req.emr_rc; 101 goto fail2; 102 } 103 104 return (0); 105 106 fail2: 107 EFSYS_PROBE(fail2); 108 109 fail1: 110 EFSYS_PROBE1(fail1, efx_rc_t, rc); 111 112 return (rc); 113 } 114 115 __checkReturn efx_rc_t 116 ef10_intr_trigger( 117 __in efx_nic_t *enp, 118 __in unsigned int level) 119 { 120 efx_nic_cfg_t *encp = &(enp->en_nic_cfg); 121 efx_rc_t rc; 122 123 if (encp->enc_bug41750_workaround) { 124 /* 125 * bug 41750: Test interrupts don't work on Greenport 126 * bug 50084: Test interrupts don't work on VFs 127 */ 128 rc = ENOTSUP; 129 goto fail1; 130 } 131 132 if ((rc = efx_mcdi_trigger_interrupt(enp, level)) != 0) 133 goto fail2; 134 135 return (0); 136 137 fail2: 138 EFSYS_PROBE(fail2); 139 fail1: 140 EFSYS_PROBE1(fail1, efx_rc_t, rc); 141 142 return (rc); 143 } 144 145 void 146 ef10_intr_status_line( 147 __in efx_nic_t *enp, 148 __out boolean_t *fatalp, 149 __out uint32_t *qmaskp) 150 { 151 efx_dword_t dword; 152 153 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 154 enp->en_family == EFX_FAMILY_MEDFORD || 155 enp->en_family == EFX_FAMILY_MEDFORD2); 156 157 /* Read the queue mask and implicitly acknowledge the interrupt. */ 158 EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE); 159 *qmaskp = EFX_DWORD_FIELD(dword, EFX_DWORD_0); 160 161 EFSYS_PROBE1(qmask, uint32_t, *qmaskp); 162 163 *fatalp = B_FALSE; 164 } 165 166 void 167 ef10_intr_status_message( 168 __in efx_nic_t *enp, 169 __in unsigned int message, 170 __out boolean_t *fatalp) 171 { 172 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 173 enp->en_family == EFX_FAMILY_MEDFORD || 174 enp->en_family == EFX_FAMILY_MEDFORD2); 175 176 _NOTE(ARGUNUSED(enp, message)) 177 178 /* EF10 fatal errors are reported via events */ 179 *fatalp = B_FALSE; 180 } 181 182 void 183 ef10_intr_fatal( 184 __in efx_nic_t *enp) 185 { 186 /* EF10 fatal errors are reported via events */ 187 _NOTE(ARGUNUSED(enp)) 188 } 189 190 void 191 ef10_intr_fini( 192 __in efx_nic_t *enp) 193 { 194 _NOTE(ARGUNUSED(enp)) 195 } 196 197 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */ 198