1 /*- 2 * Copyright (c) 2009-2016 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 __checkReturn efx_rc_t 38 efx_port_init( 39 __in efx_nic_t *enp) 40 { 41 efx_port_t *epp = &(enp->en_port); 42 const efx_phy_ops_t *epop = epp->ep_epop; 43 efx_rc_t rc; 44 45 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC); 46 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE); 47 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC); 48 49 if (enp->en_mod_flags & EFX_MOD_PORT) { 50 rc = EINVAL; 51 goto fail1; 52 } 53 54 enp->en_mod_flags |= EFX_MOD_PORT; 55 56 epp->ep_mac_type = EFX_MAC_INVALID; 57 epp->ep_link_mode = EFX_LINK_UNKNOWN; 58 epp->ep_mac_drain = B_TRUE; 59 60 /* Configure the MAC */ 61 if ((rc = efx_mac_select(enp)) != 0) 62 goto fail1; 63 64 epp->ep_emop->emo_reconfigure(enp); 65 66 /* Pick up current phy capababilities */ 67 efx_port_poll(enp, NULL); 68 69 /* 70 * Turn on the PHY if available, otherwise reset it, and 71 * reconfigure it with the current configuration. 72 */ 73 if (epop->epo_power != NULL) { 74 if ((rc = epop->epo_power(enp, B_TRUE)) != 0) 75 goto fail2; 76 } else { 77 if ((rc = epop->epo_reset(enp)) != 0) 78 goto fail2; 79 } 80 81 EFSYS_ASSERT(enp->en_reset_flags & EFX_RESET_PHY); 82 enp->en_reset_flags &= ~EFX_RESET_PHY; 83 84 if ((rc = epop->epo_reconfigure(enp)) != 0) 85 goto fail3; 86 87 return (0); 88 89 fail3: 90 EFSYS_PROBE(fail3); 91 fail2: 92 EFSYS_PROBE(fail2); 93 fail1: 94 EFSYS_PROBE1(fail1, efx_rc_t, rc); 95 96 enp->en_mod_flags &= ~EFX_MOD_PORT; 97 98 return (rc); 99 } 100 101 __checkReturn efx_rc_t 102 efx_port_poll( 103 __in efx_nic_t *enp, 104 __out_opt efx_link_mode_t *link_modep) 105 { 106 efx_port_t *epp = &(enp->en_port); 107 const efx_mac_ops_t *emop = epp->ep_emop; 108 efx_link_mode_t ignore_link_mode; 109 efx_rc_t rc; 110 111 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC); 112 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT); 113 114 EFSYS_ASSERT(emop != NULL); 115 EFSYS_ASSERT(!epp->ep_mac_stats_pending); 116 117 if (link_modep == NULL) 118 link_modep = &ignore_link_mode; 119 120 if ((rc = emop->emo_poll(enp, link_modep)) != 0) 121 goto fail1; 122 123 return (0); 124 125 fail1: 126 EFSYS_PROBE1(fail1, efx_rc_t, rc); 127 128 return (rc); 129 } 130 131 #if EFSYS_OPT_LOOPBACK 132 133 __checkReturn efx_rc_t 134 efx_port_loopback_set( 135 __in efx_nic_t *enp, 136 __in efx_link_mode_t link_mode, 137 __in efx_loopback_type_t loopback_type) 138 { 139 efx_port_t *epp = &(enp->en_port); 140 efx_nic_cfg_t *encp = &(enp->en_nic_cfg); 141 const efx_mac_ops_t *emop = epp->ep_emop; 142 efx_rc_t rc; 143 144 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC); 145 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT); 146 EFSYS_ASSERT(emop != NULL); 147 148 EFSYS_ASSERT(link_mode < EFX_LINK_NMODES); 149 150 if (EFX_TEST_QWORD_BIT(encp->enc_loopback_types[link_mode], 151 loopback_type) == 0) { 152 rc = ENOTSUP; 153 goto fail1; 154 } 155 156 if (epp->ep_loopback_type == loopback_type && 157 epp->ep_loopback_link_mode == link_mode) 158 return (0); 159 160 if ((rc = emop->emo_loopback_set(enp, link_mode, loopback_type)) != 0) 161 goto fail2; 162 163 return (0); 164 165 fail2: 166 EFSYS_PROBE(fail2); 167 fail1: 168 EFSYS_PROBE1(fail1, efx_rc_t, rc); 169 170 return (rc); 171 } 172 173 #if EFSYS_OPT_NAMES 174 175 static const char * const __efx_loopback_type_name[] = { 176 "OFF", 177 "DATA", 178 "GMAC", 179 "XGMII", 180 "XGXS", 181 "XAUI", 182 "GMII", 183 "SGMII", 184 "XGBR", 185 "XFI", 186 "XAUI_FAR", 187 "GMII_FAR", 188 "SGMII_FAR", 189 "XFI_FAR", 190 "GPHY", 191 "PHY_XS", 192 "PCS", 193 "PMA_PMD", 194 "XPORT", 195 "XGMII_WS", 196 "XAUI_WS", 197 "XAUI_WS_FAR", 198 "XAUI_WS_NEAR", 199 "GMII_WS", 200 "XFI_WS", 201 "XFI_WS_FAR", 202 "PHYXS_WS", 203 "PMA_INT", 204 "SD_NEAR", 205 "SD_FAR", 206 "PMA_INT_WS", 207 "SD_FEP2_WS", 208 "SD_FEP1_5_WS", 209 "SD_FEP_WS", 210 "SD_FES_WS", 211 }; 212 213 __checkReturn const char * 214 efx_loopback_type_name( 215 __in efx_nic_t *enp, 216 __in efx_loopback_type_t type) 217 { 218 EFX_STATIC_ASSERT(EFX_ARRAY_SIZE(__efx_loopback_type_name) == 219 EFX_LOOPBACK_NTYPES); 220 221 _NOTE(ARGUNUSED(enp)) 222 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC); 223 EFSYS_ASSERT3U(type, <, EFX_LOOPBACK_NTYPES); 224 225 return (__efx_loopback_type_name[type]); 226 } 227 228 #endif /* EFSYS_OPT_NAMES */ 229 230 #endif /* EFSYS_OPT_LOOPBACK */ 231 232 void 233 efx_port_fini( 234 __in efx_nic_t *enp) 235 { 236 efx_port_t *epp = &(enp->en_port); 237 const efx_phy_ops_t *epop = epp->ep_epop; 238 239 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC); 240 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE); 241 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC); 242 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PORT); 243 244 EFSYS_ASSERT(epp->ep_mac_drain); 245 246 epp->ep_emop = NULL; 247 epp->ep_mac_type = EFX_MAC_INVALID; 248 epp->ep_mac_drain = B_FALSE; 249 250 /* Turn off the PHY */ 251 if (epop->epo_power != NULL) 252 (void) epop->epo_power(enp, B_FALSE); 253 254 enp->en_mod_flags &= ~EFX_MOD_PORT; 255 } 256