ef10_phy.c revision 302408
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: stable/11/sys/dev/sfxge/common/ef10_phy.c 300607 2016-05-24 12:16:57Z arybchik $"); 33 34#include "efx.h" 35#include "efx_impl.h" 36 37#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD 38 39static void 40mcdi_phy_decode_cap( 41 __in uint32_t mcdi_cap, 42 __out uint32_t *maskp) 43{ 44 uint32_t mask; 45 46 mask = 0; 47 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) 48 mask |= (1 << EFX_PHY_CAP_10HDX); 49 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) 50 mask |= (1 << EFX_PHY_CAP_10FDX); 51 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) 52 mask |= (1 << EFX_PHY_CAP_100HDX); 53 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) 54 mask |= (1 << EFX_PHY_CAP_100FDX); 55 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) 56 mask |= (1 << EFX_PHY_CAP_1000HDX); 57 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) 58 mask |= (1 << EFX_PHY_CAP_1000FDX); 59 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) 60 mask |= (1 << EFX_PHY_CAP_10000FDX); 61 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) 62 mask |= (1 << EFX_PHY_CAP_40000FDX); 63 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) 64 mask |= (1 << EFX_PHY_CAP_PAUSE); 65 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) 66 mask |= (1 << EFX_PHY_CAP_ASYM); 67 if (mcdi_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) 68 mask |= (1 << EFX_PHY_CAP_AN); 69 70 *maskp = mask; 71} 72 73static void 74mcdi_phy_decode_link_mode( 75 __in efx_nic_t *enp, 76 __in uint32_t link_flags, 77 __in unsigned int speed, 78 __in unsigned int fcntl, 79 __out efx_link_mode_t *link_modep, 80 __out unsigned int *fcntlp) 81{ 82 boolean_t fd = !!(link_flags & 83 (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); 84 boolean_t up = !!(link_flags & 85 (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); 86 87 _NOTE(ARGUNUSED(enp)) 88 89 if (!up) 90 *link_modep = EFX_LINK_DOWN; 91 else if (speed == 40000 && fd) 92 *link_modep = EFX_LINK_40000FDX; 93 else if (speed == 10000 && fd) 94 *link_modep = EFX_LINK_10000FDX; 95 else if (speed == 1000) 96 *link_modep = fd ? EFX_LINK_1000FDX : EFX_LINK_1000HDX; 97 else if (speed == 100) 98 *link_modep = fd ? EFX_LINK_100FDX : EFX_LINK_100HDX; 99 else if (speed == 10) 100 *link_modep = fd ? EFX_LINK_10FDX : EFX_LINK_10HDX; 101 else 102 *link_modep = EFX_LINK_UNKNOWN; 103 104 if (fcntl == MC_CMD_FCNTL_OFF) 105 *fcntlp = 0; 106 else if (fcntl == MC_CMD_FCNTL_RESPOND) 107 *fcntlp = EFX_FCNTL_RESPOND; 108 else if (fcntl == MC_CMD_FCNTL_GENERATE) 109 *fcntlp = EFX_FCNTL_GENERATE; 110 else if (fcntl == MC_CMD_FCNTL_BIDIR) 111 *fcntlp = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; 112 else { 113 EFSYS_PROBE1(mc_pcol_error, int, fcntl); 114 *fcntlp = 0; 115 } 116} 117 118 119 void 120ef10_phy_link_ev( 121 __in efx_nic_t *enp, 122 __in efx_qword_t *eqp, 123 __out efx_link_mode_t *link_modep) 124{ 125 efx_port_t *epp = &(enp->en_port); 126 unsigned int link_flags; 127 unsigned int speed; 128 unsigned int fcntl; 129 efx_link_mode_t link_mode; 130 uint32_t lp_cap_mask; 131 132 /* 133 * Convert the LINKCHANGE speed enumeration into mbit/s, in the 134 * same way as GET_LINK encodes the speed 135 */ 136 switch (MCDI_EV_FIELD(eqp, LINKCHANGE_SPEED)) { 137 case MCDI_EVENT_LINKCHANGE_SPEED_100M: 138 speed = 100; 139 break; 140 case MCDI_EVENT_LINKCHANGE_SPEED_1G: 141 speed = 1000; 142 break; 143 case MCDI_EVENT_LINKCHANGE_SPEED_10G: 144 speed = 10000; 145 break; 146 case MCDI_EVENT_LINKCHANGE_SPEED_40G: 147 speed = 40000; 148 break; 149 default: 150 speed = 0; 151 break; 152 } 153 154 link_flags = MCDI_EV_FIELD(eqp, LINKCHANGE_LINK_FLAGS); 155 mcdi_phy_decode_link_mode(enp, link_flags, speed, 156 MCDI_EV_FIELD(eqp, LINKCHANGE_FCNTL), 157 &link_mode, &fcntl); 158 mcdi_phy_decode_cap(MCDI_EV_FIELD(eqp, LINKCHANGE_LP_CAP), 159 &lp_cap_mask); 160 161 /* 162 * It's safe to update ep_lp_cap_mask without the driver's port lock 163 * because presumably any concurrently running efx_port_poll() is 164 * only going to arrive at the same value. 165 * 166 * ep_fcntl has two meanings. It's either the link common fcntl 167 * (if the PHY supports AN), or it's the forced link state. If 168 * the former, it's safe to update the value for the same reason as 169 * for ep_lp_cap_mask. If the latter, then just ignore the value, 170 * because we can race with efx_mac_fcntl_set(). 171 */ 172 epp->ep_lp_cap_mask = lp_cap_mask; 173 epp->ep_fcntl = fcntl; 174 175 *link_modep = link_mode; 176} 177 178 __checkReturn efx_rc_t 179ef10_phy_power( 180 __in efx_nic_t *enp, 181 __in boolean_t power) 182{ 183 efx_rc_t rc; 184 185 if (!power) 186 return (0); 187 188 /* Check if the PHY is a zombie */ 189 if ((rc = ef10_phy_verify(enp)) != 0) 190 goto fail1; 191 192 enp->en_reset_flags |= EFX_RESET_PHY; 193 194 return (0); 195 196fail1: 197 EFSYS_PROBE1(fail1, efx_rc_t, rc); 198 199 return (rc); 200} 201 202 __checkReturn efx_rc_t 203ef10_phy_get_link( 204 __in efx_nic_t *enp, 205 __out ef10_link_state_t *elsp) 206{ 207 efx_mcdi_req_t req; 208 uint8_t payload[MAX(MC_CMD_GET_LINK_IN_LEN, 209 MC_CMD_GET_LINK_OUT_LEN)]; 210 efx_rc_t rc; 211 212 (void) memset(payload, 0, sizeof (payload)); 213 req.emr_cmd = MC_CMD_GET_LINK; 214 req.emr_in_buf = payload; 215 req.emr_in_length = MC_CMD_GET_LINK_IN_LEN; 216 req.emr_out_buf = payload; 217 req.emr_out_length = MC_CMD_GET_LINK_OUT_LEN; 218 219 efx_mcdi_execute(enp, &req); 220 221 if (req.emr_rc != 0) { 222 rc = req.emr_rc; 223 goto fail1; 224 } 225 226 if (req.emr_out_length_used < MC_CMD_GET_LINK_OUT_LEN) { 227 rc = EMSGSIZE; 228 goto fail2; 229 } 230 231 mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_CAP), 232 &elsp->els_adv_cap_mask); 233 mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_LP_CAP), 234 &elsp->els_lp_cap_mask); 235 236 mcdi_phy_decode_link_mode(enp, MCDI_OUT_DWORD(req, GET_LINK_OUT_FLAGS), 237 MCDI_OUT_DWORD(req, GET_LINK_OUT_LINK_SPEED), 238 MCDI_OUT_DWORD(req, GET_LINK_OUT_FCNTL), 239 &elsp->els_link_mode, &elsp->els_fcntl); 240 241#if EFSYS_OPT_LOOPBACK 242 /* Assert the MC_CMD_LOOPBACK and EFX_LOOPBACK namespace agree */ 243 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_NONE == EFX_LOOPBACK_OFF); 244 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_DATA == EFX_LOOPBACK_DATA); 245 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMAC == EFX_LOOPBACK_GMAC); 246 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGMII == EFX_LOOPBACK_XGMII); 247 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGXS == EFX_LOOPBACK_XGXS); 248 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI == EFX_LOOPBACK_XAUI); 249 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMII == EFX_LOOPBACK_GMII); 250 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SGMII == EFX_LOOPBACK_SGMII); 251 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGBR == EFX_LOOPBACK_XGBR); 252 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI == EFX_LOOPBACK_XFI); 253 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI_FAR == EFX_LOOPBACK_XAUI_FAR); 254 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMII_FAR == EFX_LOOPBACK_GMII_FAR); 255 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SGMII_FAR == EFX_LOOPBACK_SGMII_FAR); 256 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI_FAR == EFX_LOOPBACK_XFI_FAR); 257 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GPHY == EFX_LOOPBACK_GPHY); 258 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PHYXS == EFX_LOOPBACK_PHY_XS); 259 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PCS == EFX_LOOPBACK_PCS); 260 EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PMAPMD == EFX_LOOPBACK_PMA_PMD); 261 262 elsp->els_loopback = MCDI_OUT_DWORD(req, GET_LINK_OUT_LOOPBACK_MODE); 263#endif /* EFSYS_OPT_LOOPBACK */ 264 265 elsp->els_mac_up = MCDI_OUT_DWORD(req, GET_LINK_OUT_MAC_FAULT) == 0; 266 267 return (0); 268 269fail2: 270 EFSYS_PROBE(fail2); 271fail1: 272 EFSYS_PROBE1(fail1, efx_rc_t, rc); 273 274 return (rc); 275} 276 277 __checkReturn efx_rc_t 278ef10_phy_reconfigure( 279 __in efx_nic_t *enp) 280{ 281 efx_nic_cfg_t *encp = &(enp->en_nic_cfg); 282 efx_port_t *epp = &(enp->en_port); 283 efx_mcdi_req_t req; 284 uint8_t payload[MAX(MC_CMD_SET_LINK_IN_LEN, 285 MC_CMD_SET_LINK_OUT_LEN)]; 286 uint32_t cap_mask; 287 unsigned int led_mode; 288 unsigned int speed; 289 efx_rc_t rc; 290 291 if (~encp->enc_func_flags & EFX_NIC_FUNC_LINKCTRL) 292 goto out; 293 294 (void) memset(payload, 0, sizeof (payload)); 295 req.emr_cmd = MC_CMD_SET_LINK; 296 req.emr_in_buf = payload; 297 req.emr_in_length = MC_CMD_SET_LINK_IN_LEN; 298 req.emr_out_buf = payload; 299 req.emr_out_length = MC_CMD_SET_LINK_OUT_LEN; 300 301 cap_mask = epp->ep_adv_cap_mask; 302 MCDI_IN_POPULATE_DWORD_10(req, SET_LINK_IN_CAP, 303 PHY_CAP_10HDX, (cap_mask >> EFX_PHY_CAP_10HDX) & 0x1, 304 PHY_CAP_10FDX, (cap_mask >> EFX_PHY_CAP_10FDX) & 0x1, 305 PHY_CAP_100HDX, (cap_mask >> EFX_PHY_CAP_100HDX) & 0x1, 306 PHY_CAP_100FDX, (cap_mask >> EFX_PHY_CAP_100FDX) & 0x1, 307 PHY_CAP_1000HDX, (cap_mask >> EFX_PHY_CAP_1000HDX) & 0x1, 308 PHY_CAP_1000FDX, (cap_mask >> EFX_PHY_CAP_1000FDX) & 0x1, 309 PHY_CAP_10000FDX, (cap_mask >> EFX_PHY_CAP_10000FDX) & 0x1, 310 PHY_CAP_PAUSE, (cap_mask >> EFX_PHY_CAP_PAUSE) & 0x1, 311 PHY_CAP_ASYM, (cap_mask >> EFX_PHY_CAP_ASYM) & 0x1, 312 PHY_CAP_AN, (cap_mask >> EFX_PHY_CAP_AN) & 0x1); 313 /* Too many fields for for POPULATE macros, so insert this afterwards */ 314 MCDI_IN_SET_DWORD_FIELD(req, SET_LINK_IN_CAP, 315 PHY_CAP_40000FDX, (cap_mask >> EFX_PHY_CAP_40000FDX) & 0x1); 316 317#if EFSYS_OPT_LOOPBACK 318 MCDI_IN_SET_DWORD(req, SET_LINK_IN_LOOPBACK_MODE, 319 epp->ep_loopback_type); 320 switch (epp->ep_loopback_link_mode) { 321 case EFX_LINK_100FDX: 322 speed = 100; 323 break; 324 case EFX_LINK_1000FDX: 325 speed = 1000; 326 break; 327 case EFX_LINK_10000FDX: 328 speed = 10000; 329 break; 330 case EFX_LINK_40000FDX: 331 speed = 40000; 332 break; 333 default: 334 speed = 0; 335 } 336#else 337 MCDI_IN_SET_DWORD(req, SET_LINK_IN_LOOPBACK_MODE, MC_CMD_LOOPBACK_NONE); 338 speed = 0; 339#endif /* EFSYS_OPT_LOOPBACK */ 340 MCDI_IN_SET_DWORD(req, SET_LINK_IN_LOOPBACK_SPEED, speed); 341 342#if EFSYS_OPT_PHY_FLAGS 343 MCDI_IN_SET_DWORD(req, SET_LINK_IN_FLAGS, epp->ep_phy_flags); 344#else 345 MCDI_IN_SET_DWORD(req, SET_LINK_IN_FLAGS, 0); 346#endif /* EFSYS_OPT_PHY_FLAGS */ 347 348 efx_mcdi_execute(enp, &req); 349 350 if (req.emr_rc != 0) { 351 rc = req.emr_rc; 352 goto fail1; 353 } 354 355 /* And set the blink mode */ 356 (void) memset(payload, 0, sizeof (payload)); 357 req.emr_cmd = MC_CMD_SET_ID_LED; 358 req.emr_in_buf = payload; 359 req.emr_in_length = MC_CMD_SET_ID_LED_IN_LEN; 360 req.emr_out_buf = payload; 361 req.emr_out_length = MC_CMD_SET_ID_LED_OUT_LEN; 362 363#if EFSYS_OPT_PHY_LED_CONTROL 364 switch (epp->ep_phy_led_mode) { 365 case EFX_PHY_LED_DEFAULT: 366 led_mode = MC_CMD_LED_DEFAULT; 367 break; 368 case EFX_PHY_LED_OFF: 369 led_mode = MC_CMD_LED_OFF; 370 break; 371 case EFX_PHY_LED_ON: 372 led_mode = MC_CMD_LED_ON; 373 break; 374 default: 375 EFSYS_ASSERT(0); 376 led_mode = MC_CMD_LED_DEFAULT; 377 } 378 379 MCDI_IN_SET_DWORD(req, SET_ID_LED_IN_STATE, led_mode); 380#else 381 MCDI_IN_SET_DWORD(req, SET_ID_LED_IN_STATE, MC_CMD_LED_DEFAULT); 382#endif /* EFSYS_OPT_PHY_LED_CONTROL */ 383 384 efx_mcdi_execute(enp, &req); 385 386 if (req.emr_rc != 0) { 387 rc = req.emr_rc; 388 goto fail2; 389 } 390out: 391 return (0); 392 393fail2: 394 EFSYS_PROBE(fail2); 395fail1: 396 EFSYS_PROBE1(fail1, efx_rc_t, rc); 397 398 return (rc); 399} 400 401 __checkReturn efx_rc_t 402ef10_phy_verify( 403 __in efx_nic_t *enp) 404{ 405 efx_mcdi_req_t req; 406 uint8_t payload[MAX(MC_CMD_GET_PHY_STATE_IN_LEN, 407 MC_CMD_GET_PHY_STATE_OUT_LEN)]; 408 uint32_t state; 409 efx_rc_t rc; 410 411 (void) memset(payload, 0, sizeof (payload)); 412 req.emr_cmd = MC_CMD_GET_PHY_STATE; 413 req.emr_in_buf = payload; 414 req.emr_in_length = MC_CMD_GET_PHY_STATE_IN_LEN; 415 req.emr_out_buf = payload; 416 req.emr_out_length = MC_CMD_GET_PHY_STATE_OUT_LEN; 417 418 efx_mcdi_execute(enp, &req); 419 420 if (req.emr_rc != 0) { 421 rc = req.emr_rc; 422 goto fail1; 423 } 424 425 if (req.emr_out_length_used < MC_CMD_GET_PHY_STATE_OUT_LEN) { 426 rc = EMSGSIZE; 427 goto fail2; 428 } 429 430 state = MCDI_OUT_DWORD(req, GET_PHY_STATE_OUT_STATE); 431 if (state != MC_CMD_PHY_STATE_OK) { 432 if (state != MC_CMD_PHY_STATE_ZOMBIE) 433 EFSYS_PROBE1(mc_pcol_error, int, state); 434 rc = ENOTACTIVE; 435 goto fail3; 436 } 437 438 return (0); 439 440fail3: 441 EFSYS_PROBE(fail3); 442fail2: 443 EFSYS_PROBE(fail2); 444fail1: 445 EFSYS_PROBE1(fail1, efx_rc_t, rc); 446 447 return (rc); 448} 449 450 __checkReturn efx_rc_t 451ef10_phy_oui_get( 452 __in efx_nic_t *enp, 453 __out uint32_t *ouip) 454{ 455 _NOTE(ARGUNUSED(enp, ouip)) 456 457 return (ENOTSUP); 458} 459 460#if EFSYS_OPT_PHY_STATS 461 462 __checkReturn efx_rc_t 463ef10_phy_stats_update( 464 __in efx_nic_t *enp, 465 __in efsys_mem_t *esmp, 466 __inout_ecount(EFX_PHY_NSTATS) uint32_t *stat) 467{ 468 /* TBD: no stats support in firmware yet */ 469 _NOTE(ARGUNUSED(enp, esmp)) 470 memset(stat, 0, EFX_PHY_NSTATS * sizeof (*stat)); 471 472 return (0); 473} 474 475#endif /* EFSYS_OPT_PHY_STATS */ 476 477#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */ 478