1 /* 2 * Copyright (c) 2012-2015 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 "efx.h" 32 #include "efx_impl.h" 33 34 35 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD 36 37 __checkReturn efx_rc_t 38 ef10_intr_init( 39 __in efx_nic_t *enp, 40 __in efx_intr_type_t type, 41 __in efsys_mem_t *esmp) 42 { 43 _NOTE(ARGUNUSED(enp, type, esmp)) 44 return (0); 45 } 46 47 48 void 49 ef10_intr_enable( 50 __in efx_nic_t *enp) 51 { 52 _NOTE(ARGUNUSED(enp)) 53 } 54 55 56 void 57 ef10_intr_disable( 58 __in efx_nic_t *enp) 59 { 60 _NOTE(ARGUNUSED(enp)) 61 } 62 63 64 void 65 ef10_intr_disable_unlocked( 66 __in efx_nic_t *enp) 67 { 68 _NOTE(ARGUNUSED(enp)) 69 } 70 71 72 static __checkReturn efx_rc_t 73 efx_mcdi_trigger_interrupt( 74 __in efx_nic_t *enp, 75 __in unsigned int level) 76 { 77 efx_mcdi_req_t req; 78 uint8_t payload[MAX(MC_CMD_TRIGGER_INTERRUPT_IN_LEN, 79 MC_CMD_TRIGGER_INTERRUPT_OUT_LEN)]; 80 efx_rc_t rc; 81 82 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 83 enp->en_family == EFX_FAMILY_MEDFORD); 84 85 if (level >= enp->en_nic_cfg.enc_intr_limit) { 86 rc = EINVAL; 87 goto fail1; 88 } 89 90 (void) memset(payload, 0, sizeof (payload)); 91 req.emr_cmd = MC_CMD_TRIGGER_INTERRUPT; 92 req.emr_in_buf = payload; 93 req.emr_in_length = MC_CMD_TRIGGER_INTERRUPT_IN_LEN; 94 req.emr_out_buf = payload; 95 req.emr_out_length = MC_CMD_TRIGGER_INTERRUPT_OUT_LEN; 96 97 MCDI_IN_SET_DWORD(req, TRIGGER_INTERRUPT_IN_INTR_LEVEL, level); 98 99 efx_mcdi_execute(enp, &req); 100 101 if (req.emr_rc != 0) { 102 rc = req.emr_rc; 103 goto fail2; 104 } 105 106 return (0); 107 108 fail2: 109 EFSYS_PROBE(fail2); 110 111 fail1: 112 EFSYS_PROBE1(fail1, efx_rc_t, rc); 113 114 return (rc); 115 } 116 117 __checkReturn efx_rc_t 118 ef10_intr_trigger( 119 __in efx_nic_t *enp, 120 __in unsigned int level) 121 { 122 efx_nic_cfg_t *encp = &(enp->en_nic_cfg); 123 efx_rc_t rc; 124 125 if (encp->enc_bug41750_workaround) { 126 /* 127 * bug 41750: Test interrupts don't work on Greenport 128 * bug 50084: Test interrupts don't work on VFs 129 */ 130 rc = ENOTSUP; 131 goto fail1; 132 } 133 134 if ((rc = efx_mcdi_trigger_interrupt(enp, level)) != 0) 135 goto fail2; 136 137 return (0); 138 139 fail2: 140 EFSYS_PROBE(fail2); 141 fail1: 142 EFSYS_PROBE1(fail1, efx_rc_t, rc); 143 144 return (rc); 145 } 146 147 void 148 ef10_intr_status_line( 149 __in efx_nic_t *enp, 150 __out boolean_t *fatalp, 151 __out uint32_t *qmaskp) 152 { 153 efx_dword_t dword; 154 155 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 156 enp->en_family == EFX_FAMILY_MEDFORD); 157 158 /* Read the queue mask and implicitly acknowledge the interrupt. */ 159 EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE); 160 *qmaskp = EFX_DWORD_FIELD(dword, EFX_DWORD_0); 161 162 EFSYS_PROBE1(qmask, uint32_t, *qmaskp); 163 164 *fatalp = B_FALSE; 165 } 166 167 void 168 ef10_intr_status_message( 169 __in efx_nic_t *enp, 170 __in unsigned int message, 171 __out boolean_t *fatalp) 172 { 173 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || 174 enp->en_family == EFX_FAMILY_MEDFORD); 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 */ 198