1 /*- 2 * Copyright (c) 2010-2016 Solarflare Communications, Inc. 3 * All rights reserved. 4 * 5 * This software was developed in part by OKTET Labs Ltd. under contract for 6 * Solarflare Communications, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/types.h> 34 #include <sys/malloc.h> 35 36 #include "common/efx.h" 37 #include "sfxge.h" 38 39 /* These data make no real sense, they are here just to make sfupdate happy. 40 * Any code that would rely on it is broken. 41 */ 42 static const uint8_t fake_dynamic_cfg_nvram[] = { 43 0x7a, 0xda, 0x10, 0xef, 0x0c, 0x00, 0x00, 0x00, 44 0x00, 0x05, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 45 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x10, 46 0x08, 0x00, 0x00, 0x00, 0x90, 0x04, 0x00, 0x52, 47 0x56, 0x01, 0xc3, 0x78, 0x01, 0x00, 0x03, 0x10, 48 0x08, 0x00, 0x00, 0x00, 0x90, 0x04, 0x00, 0x52, 49 0x56, 0x01, 0xc3, 0x78, 0x57, 0x1a, 0x10, 0xef, 50 0x08, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 51 0x02, 0x0b, 0x64, 0x7d, 0xee, 0xee, 0xee, 0xee 52 }; 53 54 static int 55 sfxge_nvram_rw(struct sfxge_softc *sc, sfxge_ioc_t *ip, efx_nvram_type_t type, 56 boolean_t write) 57 { 58 efx_nic_t *enp = sc->enp; 59 size_t total_size = ip->u.nvram.size; 60 size_t chunk_size; 61 off_t off; 62 int rc = 0; 63 uint8_t *buf; 64 65 if (type == EFX_NVRAM_DYNAMIC_CFG && sc->family == EFX_FAMILY_SIENA) { 66 if (write) 67 return (0); 68 rc = copyout(fake_dynamic_cfg_nvram, ip->u.nvram.data, 69 MIN(total_size, sizeof(fake_dynamic_cfg_nvram))); 70 return (rc); 71 } 72 73 if ((rc = efx_nvram_rw_start(enp, type, &chunk_size)) != 0) 74 goto fail1; 75 76 buf = malloc(chunk_size, M_TEMP, M_WAITOK); 77 78 off = 0; 79 while (total_size) { 80 size_t len = MIN(chunk_size, total_size); 81 82 if (write) { 83 rc = copyin(ip->u.nvram.data + off, buf, len); 84 if (rc != 0) 85 goto fail3; 86 rc = efx_nvram_write_chunk(enp, type, 87 ip->u.nvram.offset + off, buf, len); 88 if (rc != 0) 89 goto fail3; 90 } else { 91 rc = efx_nvram_read_chunk(enp, type, 92 ip->u.nvram.offset + off, buf, len); 93 if (rc != 0) 94 goto fail3; 95 rc = copyout(buf, ip->u.nvram.data + off, len); 96 if (rc != 0) 97 goto fail3; 98 } 99 100 total_size -= len; 101 off += len; 102 } 103 104 fail3: 105 free(buf, M_TEMP); 106 efx_nvram_rw_finish(enp, type, NULL); 107 fail1: 108 return (rc); 109 } 110 111 static int 112 sfxge_nvram_erase(struct sfxge_softc *sc, efx_nvram_type_t type) 113 { 114 efx_nic_t *enp = sc->enp; 115 size_t chunk_size; 116 int rc = 0; 117 118 if (type == EFX_NVRAM_DYNAMIC_CFG && sc->family == EFX_FAMILY_SIENA) 119 return (0); 120 121 if ((rc = efx_nvram_rw_start(enp, type, &chunk_size)) != 0) 122 return (rc); 123 124 rc = efx_nvram_erase(enp, type); 125 126 efx_nvram_rw_finish(enp, type, NULL); 127 return (rc); 128 } 129 130 int 131 sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip) 132 { 133 static const efx_nvram_type_t nvram_types[] = { 134 [SFXGE_NVRAM_TYPE_BOOTROM] = EFX_NVRAM_BOOTROM, 135 [SFXGE_NVRAM_TYPE_BOOTROM_CFG] = EFX_NVRAM_BOOTROM_CFG, 136 [SFXGE_NVRAM_TYPE_MC] = EFX_NVRAM_MC_FIRMWARE, 137 [SFXGE_NVRAM_TYPE_MC_GOLDEN] = EFX_NVRAM_MC_GOLDEN, 138 [SFXGE_NVRAM_TYPE_PHY] = EFX_NVRAM_PHY, 139 [SFXGE_NVRAM_TYPE_NULL_PHY] = EFX_NVRAM_NULLPHY, 140 [SFXGE_NVRAM_TYPE_FPGA] = EFX_NVRAM_FPGA, 141 [SFXGE_NVRAM_TYPE_FCFW] = EFX_NVRAM_FCFW, 142 [SFXGE_NVRAM_TYPE_CPLD] = EFX_NVRAM_CPLD, 143 [SFXGE_NVRAM_TYPE_FPGA_BACKUP] = EFX_NVRAM_FPGA_BACKUP, 144 [SFXGE_NVRAM_TYPE_DYNAMIC_CFG] = EFX_NVRAM_DYNAMIC_CFG, 145 }; 146 147 efx_nic_t *enp = sc->enp; 148 efx_nvram_type_t type; 149 int rc = 0; 150 151 if (ip->u.nvram.type > SFXGE_NVRAM_TYPE_DYNAMIC_CFG) 152 return (EINVAL); 153 type = nvram_types[ip->u.nvram.type]; 154 if (type == EFX_NVRAM_MC_GOLDEN && 155 (ip->u.nvram.op == SFXGE_NVRAM_OP_WRITE || 156 ip->u.nvram.op == SFXGE_NVRAM_OP_ERASE || 157 ip->u.nvram.op == SFXGE_NVRAM_OP_SET_VER)) 158 return (EOPNOTSUPP); 159 160 switch (ip->u.nvram.op) { 161 case SFXGE_NVRAM_OP_SIZE: 162 { 163 size_t size; 164 165 if (type == EFX_NVRAM_DYNAMIC_CFG && sc->family == EFX_FAMILY_SIENA) { 166 ip->u.nvram.size = sizeof(fake_dynamic_cfg_nvram); 167 } else { 168 if ((rc = efx_nvram_size(enp, type, &size)) != 0) 169 return (rc); 170 ip->u.nvram.size = size; 171 } 172 break; 173 } 174 case SFXGE_NVRAM_OP_READ: 175 rc = sfxge_nvram_rw(sc, ip, type, B_FALSE); 176 break; 177 case SFXGE_NVRAM_OP_WRITE: 178 rc = sfxge_nvram_rw(sc, ip, type, B_TRUE); 179 break; 180 case SFXGE_NVRAM_OP_ERASE: 181 rc = sfxge_nvram_erase(sc, type); 182 break; 183 case SFXGE_NVRAM_OP_GET_VER: 184 rc = efx_nvram_get_version(enp, type, &ip->u.nvram.subtype, 185 &ip->u.nvram.version[0]); 186 break; 187 case SFXGE_NVRAM_OP_SET_VER: 188 rc = efx_nvram_set_version(enp, type, &ip->u.nvram.version[0]); 189 break; 190 default: 191 rc = EOPNOTSUPP; 192 break; 193 } 194 195 return (rc); 196 } 197