1 /*- 2 * Copyright (c) 2015-2021 Mellanox Technologies. All rights reserved. 3 * Copyright (c) 2022 NVIDIA corporation & affiliates. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "opt_kern_tls.h" 28 #include "opt_rss.h" 29 #include "opt_ratelimit.h" 30 31 #include <dev/mlx5/mlx5_en/en.h> 32 33 #include <sys/eventhandler.h> 34 #include <sys/sockio.h> 35 #include <machine/atomic.h> 36 37 #include <net/debugnet.h> 38 39 static int mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs); 40 static if_snd_tag_query_t mlx5e_ul_snd_tag_query; 41 static if_snd_tag_free_t mlx5e_ul_snd_tag_free; 42 43 struct mlx5e_channel_param { 44 struct mlx5e_rq_param rq; 45 struct mlx5e_sq_param sq; 46 struct mlx5e_cq_param rx_cq; 47 struct mlx5e_cq_param tx_cq; 48 }; 49 50 struct media { 51 u32 subtype; 52 u64 baudrate; 53 }; 54 55 static const struct media mlx5e_mode_table[MLX5E_LINK_SPEEDS_NUMBER] = 56 { 57 [MLX5E_1000BASE_CX_SGMII] = { 58 .subtype = IFM_1000_CX_SGMII, 59 .baudrate = IF_Mbps(1000ULL), 60 }, 61 [MLX5E_1000BASE_KX] = { 62 .subtype = IFM_1000_KX, 63 .baudrate = IF_Mbps(1000ULL), 64 }, 65 [MLX5E_10GBASE_CX4] = { 66 .subtype = IFM_10G_CX4, 67 .baudrate = IF_Gbps(10ULL), 68 }, 69 [MLX5E_10GBASE_KX4] = { 70 .subtype = IFM_10G_KX4, 71 .baudrate = IF_Gbps(10ULL), 72 }, 73 [MLX5E_10GBASE_KR] = { 74 .subtype = IFM_10G_KR, 75 .baudrate = IF_Gbps(10ULL), 76 }, 77 [MLX5E_20GBASE_KR2] = { 78 .subtype = IFM_20G_KR2, 79 .baudrate = IF_Gbps(20ULL), 80 }, 81 [MLX5E_40GBASE_CR4] = { 82 .subtype = IFM_40G_CR4, 83 .baudrate = IF_Gbps(40ULL), 84 }, 85 [MLX5E_40GBASE_KR4] = { 86 .subtype = IFM_40G_KR4, 87 .baudrate = IF_Gbps(40ULL), 88 }, 89 [MLX5E_56GBASE_R4] = { 90 .subtype = IFM_56G_R4, 91 .baudrate = IF_Gbps(56ULL), 92 }, 93 [MLX5E_10GBASE_CR] = { 94 .subtype = IFM_10G_CR1, 95 .baudrate = IF_Gbps(10ULL), 96 }, 97 [MLX5E_10GBASE_SR] = { 98 .subtype = IFM_10G_SR, 99 .baudrate = IF_Gbps(10ULL), 100 }, 101 [MLX5E_10GBASE_ER_LR] = { 102 .subtype = IFM_10G_ER, 103 .baudrate = IF_Gbps(10ULL), 104 }, 105 [MLX5E_40GBASE_SR4] = { 106 .subtype = IFM_40G_SR4, 107 .baudrate = IF_Gbps(40ULL), 108 }, 109 [MLX5E_40GBASE_LR4_ER4] = { 110 .subtype = IFM_40G_LR4, 111 .baudrate = IF_Gbps(40ULL), 112 }, 113 [MLX5E_100GBASE_CR4] = { 114 .subtype = IFM_100G_CR4, 115 .baudrate = IF_Gbps(100ULL), 116 }, 117 [MLX5E_100GBASE_SR4] = { 118 .subtype = IFM_100G_SR4, 119 .baudrate = IF_Gbps(100ULL), 120 }, 121 [MLX5E_100GBASE_KR4] = { 122 .subtype = IFM_100G_KR4, 123 .baudrate = IF_Gbps(100ULL), 124 }, 125 [MLX5E_100GBASE_LR4] = { 126 .subtype = IFM_100G_LR4, 127 .baudrate = IF_Gbps(100ULL), 128 }, 129 [MLX5E_100BASE_TX] = { 130 .subtype = IFM_100_TX, 131 .baudrate = IF_Mbps(100ULL), 132 }, 133 [MLX5E_1000BASE_T] = { 134 .subtype = IFM_1000_T, 135 .baudrate = IF_Mbps(1000ULL), 136 }, 137 [MLX5E_10GBASE_T] = { 138 .subtype = IFM_10G_T, 139 .baudrate = IF_Gbps(10ULL), 140 }, 141 [MLX5E_25GBASE_CR] = { 142 .subtype = IFM_25G_CR, 143 .baudrate = IF_Gbps(25ULL), 144 }, 145 [MLX5E_25GBASE_KR] = { 146 .subtype = IFM_25G_KR, 147 .baudrate = IF_Gbps(25ULL), 148 }, 149 [MLX5E_25GBASE_SR] = { 150 .subtype = IFM_25G_SR, 151 .baudrate = IF_Gbps(25ULL), 152 }, 153 [MLX5E_50GBASE_CR2] = { 154 .subtype = IFM_50G_CR2, 155 .baudrate = IF_Gbps(50ULL), 156 }, 157 [MLX5E_50GBASE_KR2] = { 158 .subtype = IFM_50G_KR2, 159 .baudrate = IF_Gbps(50ULL), 160 }, 161 [MLX5E_50GBASE_KR4] = { 162 .subtype = IFM_50G_KR4, 163 .baudrate = IF_Gbps(50ULL), 164 }, 165 }; 166 167 static const struct media mlx5e_ext_mode_table[MLX5E_EXT_LINK_SPEEDS_NUMBER][MLX5E_CABLE_TYPE_NUMBER] = 168 { 169 /**/ 170 [MLX5E_SGMII_100M][MLX5E_CABLE_TYPE_UNKNOWN] = { 171 .subtype = IFM_100_SGMII, 172 .baudrate = IF_Mbps(100), 173 }, 174 175 /**/ 176 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_UNKNOWN] = { 177 .subtype = IFM_1000_CX, 178 .baudrate = IF_Mbps(1000), 179 }, 180 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 181 .subtype = IFM_1000_SX, 182 .baudrate = IF_Mbps(1000), 183 }, 184 185 /**/ 186 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_UNKNOWN] = { 187 .subtype = IFM_5000_KR, 188 .baudrate = IF_Mbps(5000), 189 }, 190 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_TWISTED_PAIR] = { 191 .subtype = IFM_5000_T, 192 .baudrate = IF_Mbps(5000), 193 }, 194 195 /**/ 196 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_UNKNOWN] = { 197 .subtype = IFM_10G_KR, 198 .baudrate = IF_Gbps(10ULL), 199 }, 200 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 201 .subtype = IFM_10G_CR1, 202 .baudrate = IF_Gbps(10ULL), 203 }, 204 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 205 .subtype = IFM_10G_SR, 206 .baudrate = IF_Gbps(10ULL), 207 }, 208 209 /**/ 210 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_UNKNOWN] = { 211 .subtype = IFM_40G_KR4, 212 .baudrate = IF_Gbps(40ULL), 213 }, 214 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 215 .subtype = IFM_40G_CR4, 216 .baudrate = IF_Gbps(40ULL), 217 }, 218 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 219 .subtype = IFM_40G_SR4, 220 .baudrate = IF_Gbps(40ULL), 221 }, 222 223 /**/ 224 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 225 .subtype = IFM_25G_KR, 226 .baudrate = IF_Gbps(25ULL), 227 }, 228 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 229 .subtype = IFM_25G_CR, 230 .baudrate = IF_Gbps(25ULL), 231 }, 232 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 233 .subtype = IFM_25G_SR, 234 .baudrate = IF_Gbps(25ULL), 235 }, 236 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_TWISTED_PAIR] = { 237 .subtype = IFM_25G_T, 238 .baudrate = IF_Gbps(25ULL), 239 }, 240 241 /**/ 242 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 243 .subtype = IFM_50G_KR2, 244 .baudrate = IF_Gbps(50ULL), 245 }, 246 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 247 .subtype = IFM_50G_CR2, 248 .baudrate = IF_Gbps(50ULL), 249 }, 250 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 251 .subtype = IFM_50G_SR2, 252 .baudrate = IF_Gbps(50ULL), 253 }, 254 255 /**/ 256 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 257 .subtype = IFM_50G_KR_PAM4, 258 .baudrate = IF_Gbps(50ULL), 259 }, 260 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 261 .subtype = IFM_50G_CP, 262 .baudrate = IF_Gbps(50ULL), 263 }, 264 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 265 .subtype = IFM_50G_SR, 266 .baudrate = IF_Gbps(50ULL), 267 }, 268 269 /**/ 270 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 271 .subtype = IFM_100G_KR4, 272 .baudrate = IF_Gbps(100ULL), 273 }, 274 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 275 .subtype = IFM_100G_CR4, 276 .baudrate = IF_Gbps(100ULL), 277 }, 278 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 279 .subtype = IFM_100G_SR4, 280 .baudrate = IF_Gbps(100ULL), 281 }, 282 283 /**/ 284 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 285 .subtype = IFM_100G_KR_PAM4, 286 .baudrate = IF_Gbps(100ULL), 287 }, 288 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 289 .subtype = IFM_100G_CR_PAM4, 290 .baudrate = IF_Gbps(100ULL), 291 }, 292 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 293 .subtype = IFM_100G_SR2, /* XXX */ 294 .baudrate = IF_Gbps(100ULL), 295 }, 296 297 /**/ 298 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 299 .subtype = IFM_100G_KR4, 300 .baudrate = IF_Gbps(100ULL), 301 }, 302 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 303 .subtype = IFM_100G_CP2, 304 .baudrate = IF_Gbps(100ULL), 305 }, 306 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 307 .subtype = IFM_100G_SR2, 308 .baudrate = IF_Gbps(100ULL), 309 }, 310 311 /**/ 312 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 313 .subtype = IFM_200G_KR4_PAM4, /* XXX */ 314 .baudrate = IF_Gbps(200ULL), 315 }, 316 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 317 .subtype = IFM_200G_CR4_PAM4, /* XXX */ 318 .baudrate = IF_Gbps(200ULL), 319 }, 320 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 321 .subtype = IFM_200G_SR4, /* XXX */ 322 .baudrate = IF_Gbps(200ULL), 323 }, 324 325 /**/ 326 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 327 .subtype = IFM_200G_KR4_PAM4, 328 .baudrate = IF_Gbps(200ULL), 329 }, 330 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 331 .subtype = IFM_200G_CR4_PAM4, 332 .baudrate = IF_Gbps(200ULL), 333 }, 334 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 335 .subtype = IFM_200G_SR4, 336 .baudrate = IF_Gbps(200ULL), 337 }, 338 339 /**/ 340 [MLX5E_400GAUI_8][MLX5E_CABLE_TYPE_UNKNOWN] = { 341 .subtype = IFM_400G_LR8, /* XXX */ 342 .baudrate = IF_Gbps(400ULL), 343 }, 344 345 /**/ 346 [MLX5E_400GAUI_4_400GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 347 .subtype = IFM_400G_LR8, /* XXX */ 348 .baudrate = IF_Gbps(400ULL), 349 }, 350 }; 351 352 static const struct if_snd_tag_sw mlx5e_ul_snd_tag_sw = { 353 .snd_tag_query = mlx5e_ul_snd_tag_query, 354 .snd_tag_free = mlx5e_ul_snd_tag_free, 355 .type = IF_SND_TAG_TYPE_UNLIMITED 356 }; 357 358 DEBUGNET_DEFINE(mlx5_en); 359 360 MALLOC_DEFINE(M_MLX5EN, "MLX5EN", "MLX5 Ethernet"); 361 362 static void 363 mlx5e_update_carrier(struct mlx5e_priv *priv) 364 { 365 struct mlx5_core_dev *mdev = priv->mdev; 366 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 367 u32 eth_proto_oper; 368 int error; 369 u8 i; 370 u8 cable_type; 371 u8 port_state; 372 u8 is_er_type; 373 bool ext; 374 struct media media_entry = {}; 375 376 port_state = mlx5_query_vport_state(mdev, 377 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0); 378 379 if (port_state == VPORT_STATE_UP) { 380 priv->media_status_last |= IFM_ACTIVE; 381 } else { 382 priv->media_status_last &= ~IFM_ACTIVE; 383 priv->media_active_last = IFM_ETHER; 384 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 385 return; 386 } 387 388 error = mlx5_query_port_ptys(mdev, out, sizeof(out), 389 MLX5_PTYS_EN, 1); 390 if (error) { 391 priv->media_active_last = IFM_ETHER; 392 if_setbaudrate(priv->ifp, 1); 393 mlx5_en_err(priv->ifp, "query port ptys failed: 0x%x\n", 394 error); 395 return; 396 } 397 398 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet); 399 eth_proto_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 400 eth_proto_oper); 401 402 i = ilog2(eth_proto_oper); 403 404 if (ext) { 405 error = mlx5_query_pddr_cable_type(mdev, 1, &cable_type); 406 if (error != 0) { 407 /* use fallback entry */ 408 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN]; 409 410 mlx5_en_err(priv->ifp, 411 "query port pddr failed: %d\n", error); 412 } else { 413 media_entry = mlx5e_ext_mode_table[i][cable_type]; 414 415 /* check if we should use fallback entry */ 416 if (media_entry.subtype == 0) 417 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN]; 418 } 419 } else { 420 media_entry = mlx5e_mode_table[i]; 421 } 422 423 if (media_entry.subtype == 0) { 424 mlx5_en_err(priv->ifp, 425 "Could not find operational media subtype\n"); 426 return; 427 } 428 429 switch (media_entry.subtype) { 430 case IFM_10G_ER: 431 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type); 432 if (error != 0) { 433 mlx5_en_err(priv->ifp, 434 "query port pddr failed: %d\n", error); 435 } 436 if (error != 0 || is_er_type == 0) 437 media_entry.subtype = IFM_10G_LR; 438 break; 439 case IFM_40G_LR4: 440 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type); 441 if (error != 0) { 442 mlx5_en_err(priv->ifp, 443 "query port pddr failed: %d\n", error); 444 } 445 if (error == 0 && is_er_type != 0) 446 media_entry.subtype = IFM_40G_ER4; 447 break; 448 } 449 priv->media_active_last = media_entry.subtype | IFM_ETHER | IFM_FDX; 450 if_setbaudrate(priv->ifp, media_entry.baudrate); 451 452 if_link_state_change(priv->ifp, LINK_STATE_UP); 453 } 454 455 static void 456 mlx5e_media_status(if_t dev, struct ifmediareq *ifmr) 457 { 458 struct mlx5e_priv *priv = if_getsoftc(dev); 459 460 ifmr->ifm_status = priv->media_status_last; 461 ifmr->ifm_current = ifmr->ifm_active = priv->media_active_last | 462 (priv->params.rx_pauseframe_control ? IFM_ETH_RXPAUSE : 0) | 463 (priv->params.tx_pauseframe_control ? IFM_ETH_TXPAUSE : 0); 464 465 } 466 467 static u32 468 mlx5e_find_link_mode(u32 subtype, bool ext) 469 { 470 u32 link_mode = 0; 471 472 switch (subtype) { 473 case 0: 474 goto done; 475 case IFM_10G_LR: 476 subtype = IFM_10G_ER; 477 break; 478 case IFM_40G_ER4: 479 subtype = IFM_40G_LR4; 480 break; 481 default: 482 break; 483 } 484 485 if (ext) { 486 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) { 487 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) { 488 if (mlx5e_ext_mode_table[i][j].subtype == subtype) 489 link_mode |= MLX5E_PROT_MASK(i); 490 } 491 } 492 } else { 493 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) { 494 if (mlx5e_mode_table[i].subtype == subtype) 495 link_mode |= MLX5E_PROT_MASK(i); 496 } 497 } 498 done: 499 return (link_mode); 500 } 501 502 static int 503 mlx5e_set_port_pause_and_pfc(struct mlx5e_priv *priv) 504 { 505 return (mlx5_set_port_pause_and_pfc(priv->mdev, 1, 506 priv->params.rx_pauseframe_control, 507 priv->params.tx_pauseframe_control, 508 priv->params.rx_priority_flow_control, 509 priv->params.tx_priority_flow_control)); 510 } 511 512 static int 513 mlx5e_set_port_pfc(struct mlx5e_priv *priv) 514 { 515 int error; 516 517 if (priv->gone != 0) { 518 error = -ENXIO; 519 } else if (priv->params.rx_pauseframe_control || 520 priv->params.tx_pauseframe_control) { 521 mlx5_en_err(priv->ifp, 522 "Global pauseframes must be disabled before enabling PFC.\n"); 523 error = -EINVAL; 524 } else { 525 error = mlx5e_set_port_pause_and_pfc(priv); 526 } 527 return (error); 528 } 529 530 static int 531 mlx5e_media_change(if_t dev) 532 { 533 struct mlx5e_priv *priv = if_getsoftc(dev); 534 struct mlx5_core_dev *mdev = priv->mdev; 535 u32 eth_proto_cap; 536 u32 link_mode; 537 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 538 int was_opened; 539 int locked; 540 int error; 541 bool ext; 542 543 locked = PRIV_LOCKED(priv); 544 if (!locked) 545 PRIV_LOCK(priv); 546 547 if (IFM_TYPE(priv->media.ifm_media) != IFM_ETHER) { 548 error = EINVAL; 549 goto done; 550 } 551 552 error = mlx5_query_port_ptys(mdev, out, sizeof(out), 553 MLX5_PTYS_EN, 1); 554 if (error != 0) { 555 mlx5_en_err(dev, "Query port media capability failed\n"); 556 goto done; 557 } 558 559 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet); 560 link_mode = mlx5e_find_link_mode(IFM_SUBTYPE(priv->media.ifm_media), ext); 561 562 /* query supported capabilities */ 563 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 564 eth_proto_capability); 565 566 /* check for autoselect */ 567 if (IFM_SUBTYPE(priv->media.ifm_media) == IFM_AUTO) { 568 link_mode = eth_proto_cap; 569 if (link_mode == 0) { 570 mlx5_en_err(dev, "Port media capability is zero\n"); 571 error = EINVAL; 572 goto done; 573 } 574 } else { 575 link_mode = link_mode & eth_proto_cap; 576 if (link_mode == 0) { 577 mlx5_en_err(dev, "Not supported link mode requested\n"); 578 error = EINVAL; 579 goto done; 580 } 581 } 582 if (priv->media.ifm_media & (IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE)) { 583 /* check if PFC is enabled */ 584 if (priv->params.rx_priority_flow_control || 585 priv->params.tx_priority_flow_control) { 586 mlx5_en_err(dev, "PFC must be disabled before enabling global pauseframes.\n"); 587 error = EINVAL; 588 goto done; 589 } 590 } 591 /* update pauseframe control bits */ 592 priv->params.rx_pauseframe_control = 593 (priv->media.ifm_media & IFM_ETH_RXPAUSE) ? 1 : 0; 594 priv->params.tx_pauseframe_control = 595 (priv->media.ifm_media & IFM_ETH_TXPAUSE) ? 1 : 0; 596 597 /* check if device is opened */ 598 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 599 600 /* reconfigure the hardware */ 601 mlx5_set_port_status(mdev, MLX5_PORT_DOWN); 602 mlx5_set_port_proto(mdev, link_mode, MLX5_PTYS_EN, ext); 603 error = -mlx5e_set_port_pause_and_pfc(priv); 604 if (was_opened) 605 mlx5_set_port_status(mdev, MLX5_PORT_UP); 606 607 done: 608 if (!locked) 609 PRIV_UNLOCK(priv); 610 return (error); 611 } 612 613 static void 614 mlx5e_update_carrier_work(struct work_struct *work) 615 { 616 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, 617 update_carrier_work); 618 619 PRIV_LOCK(priv); 620 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) 621 mlx5e_update_carrier(priv); 622 PRIV_UNLOCK(priv); 623 } 624 625 #define MLX5E_PCIE_PERF_GET_64(a,b,c,d,e,f) \ 626 s_debug->c = MLX5_GET64(mpcnt_reg, out, counter_set.f.c); 627 628 #define MLX5E_PCIE_PERF_GET_32(a,b,c,d,e,f) \ 629 s_debug->c = MLX5_GET(mpcnt_reg, out, counter_set.f.c); 630 631 static void 632 mlx5e_update_pcie_counters(struct mlx5e_priv *priv) 633 { 634 struct mlx5_core_dev *mdev = priv->mdev; 635 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug; 636 const unsigned sz = MLX5_ST_SZ_BYTES(mpcnt_reg); 637 void *out; 638 void *in; 639 int err; 640 641 /* allocate firmware request structures */ 642 in = mlx5_vzalloc(sz); 643 out = mlx5_vzalloc(sz); 644 if (in == NULL || out == NULL) 645 goto free_out; 646 647 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP); 648 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 649 if (err != 0) 650 goto free_out; 651 652 MLX5E_PCIE_PERFORMANCE_COUNTERS_64(MLX5E_PCIE_PERF_GET_64) 653 MLX5E_PCIE_PERFORMANCE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 654 655 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_TIMERS_AND_STATES_COUNTERS_GROUP); 656 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 657 if (err != 0) 658 goto free_out; 659 660 MLX5E_PCIE_TIMERS_AND_STATES_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 661 662 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_LANE_COUNTERS_GROUP); 663 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 664 if (err != 0) 665 goto free_out; 666 667 MLX5E_PCIE_LANE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 668 669 free_out: 670 /* free firmware request structures */ 671 kvfree(in); 672 kvfree(out); 673 } 674 675 /* 676 * This function reads the physical port counters from the firmware 677 * using a pre-defined layout defined by various MLX5E_PPORT_XXX() 678 * macros. The output is converted from big-endian 64-bit values into 679 * host endian ones and stored in the "priv->stats.pport" structure. 680 */ 681 static void 682 mlx5e_update_pport_counters(struct mlx5e_priv *priv) 683 { 684 struct mlx5_core_dev *mdev = priv->mdev; 685 struct mlx5e_pport_stats *s = &priv->stats.pport; 686 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug; 687 u32 *in; 688 u32 *out; 689 const u64 *ptr; 690 unsigned sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 691 unsigned x; 692 unsigned y; 693 unsigned z; 694 695 /* allocate firmware request structures */ 696 in = mlx5_vzalloc(sz); 697 out = mlx5_vzalloc(sz); 698 if (in == NULL || out == NULL) 699 goto free_out; 700 701 /* 702 * Get pointer to the 64-bit counter set which is located at a 703 * fixed offset in the output firmware request structure: 704 */ 705 ptr = (const uint64_t *)MLX5_ADDR_OF(ppcnt_reg, out, counter_set); 706 707 MLX5_SET(ppcnt_reg, in, local_port, 1); 708 709 /* read IEEE802_3 counter group using predefined counter layout */ 710 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP); 711 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 712 for (x = 0, y = MLX5E_PPORT_PER_PRIO_STATS_NUM; 713 x != MLX5E_PPORT_IEEE802_3_STATS_NUM; x++, y++) 714 s->arg[y] = be64toh(ptr[x]); 715 716 /* read RFC2819 counter group using predefined counter layout */ 717 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP); 718 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 719 for (x = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM; x++, y++) 720 s->arg[y] = be64toh(ptr[x]); 721 722 for (y = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM + 723 MLX5E_PPORT_RFC2819_STATS_DEBUG_NUM; x++, y++) 724 s_debug->arg[y] = be64toh(ptr[x]); 725 726 /* read RFC2863 counter group using predefined counter layout */ 727 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP); 728 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 729 for (x = 0; x != MLX5E_PPORT_RFC2863_STATS_DEBUG_NUM; x++, y++) 730 s_debug->arg[y] = be64toh(ptr[x]); 731 732 /* read physical layer stats counter group using predefined counter layout */ 733 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP); 734 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 735 for (x = 0; x != MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG_NUM; x++, y++) 736 s_debug->arg[y] = be64toh(ptr[x]); 737 738 /* read Extended Ethernet counter group using predefined counter layout */ 739 MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP); 740 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 741 for (x = 0; x != MLX5E_PPORT_ETHERNET_EXTENDED_STATS_DEBUG_NUM; x++, y++) 742 s_debug->arg[y] = be64toh(ptr[x]); 743 744 /* read Extended Statistical Group */ 745 if (MLX5_CAP_GEN(mdev, pcam_reg) && 746 MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group) && 747 MLX5_CAP_PCAM_FEATURE(mdev, per_lane_error_counters)) { 748 /* read Extended Statistical counter group using predefined counter layout */ 749 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP); 750 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 751 752 for (x = 0; x != MLX5E_PPORT_STATISTICAL_DEBUG_NUM; x++, y++) 753 s_debug->arg[y] = be64toh(ptr[x]); 754 } 755 756 /* read PCIE counters */ 757 mlx5e_update_pcie_counters(priv); 758 759 /* read per-priority counters */ 760 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP); 761 762 /* iterate all the priorities */ 763 for (y = z = 0; z != MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO; z++) { 764 MLX5_SET(ppcnt_reg, in, prio_tc, z); 765 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 766 767 /* read per priority stats counter group using predefined counter layout */ 768 for (x = 0; x != (MLX5E_PPORT_PER_PRIO_STATS_NUM / 769 MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO); x++, y++) 770 s->arg[y] = be64toh(ptr[x]); 771 } 772 773 free_out: 774 /* free firmware request structures */ 775 kvfree(in); 776 kvfree(out); 777 } 778 779 static void 780 mlx5e_grp_vnic_env_update_stats(struct mlx5e_priv *priv) 781 { 782 u32 out[MLX5_ST_SZ_DW(query_vnic_env_out)] = {}; 783 u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {}; 784 785 if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard)) 786 return; 787 788 MLX5_SET(query_vnic_env_in, in, opcode, 789 MLX5_CMD_OP_QUERY_VNIC_ENV); 790 MLX5_SET(query_vnic_env_in, in, op_mod, 0); 791 MLX5_SET(query_vnic_env_in, in, other_vport, 0); 792 793 if (mlx5_cmd_exec(priv->mdev, in, sizeof(in), out, sizeof(out)) != 0) 794 return; 795 796 priv->stats.vport.rx_steer_missed_packets = 797 MLX5_GET64(query_vnic_env_out, out, 798 vport_env.nic_receive_steering_discard); 799 } 800 801 /* 802 * This function is called regularly to collect all statistics 803 * counters from the firmware. The values can be viewed through the 804 * sysctl interface. Execution is serialized using the priv's global 805 * configuration lock. 806 */ 807 static void 808 mlx5e_update_stats_locked(struct mlx5e_priv *priv) 809 { 810 struct mlx5_core_dev *mdev = priv->mdev; 811 struct mlx5e_vport_stats *s = &priv->stats.vport; 812 struct mlx5e_sq_stats *sq_stats; 813 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)]; 814 u32 *out; 815 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); 816 u64 tso_packets = 0; 817 u64 tso_bytes = 0; 818 u64 tx_queue_dropped = 0; 819 u64 tx_defragged = 0; 820 u64 tx_offload_none = 0; 821 u64 lro_packets = 0; 822 u64 lro_bytes = 0; 823 u64 sw_lro_queued = 0; 824 u64 sw_lro_flushed = 0; 825 u64 rx_csum_none = 0; 826 u64 rx_wqe_err = 0; 827 u64 rx_packets = 0; 828 u64 rx_bytes = 0; 829 u64 rx_decrypted_error = 0; 830 u64 rx_decrypted_ok = 0; 831 u32 rx_out_of_buffer = 0; 832 int error; 833 int i; 834 int j; 835 836 out = mlx5_vzalloc(outlen); 837 if (out == NULL) 838 goto free_out; 839 840 /* Collect firts the SW counters and then HW for consistency */ 841 for (i = 0; i < priv->params.num_channels; i++) { 842 struct mlx5e_channel *pch = priv->channel + i; 843 struct mlx5e_rq *rq = &pch->rq; 844 struct mlx5e_rq_stats *rq_stats = &pch->rq.stats; 845 846 /* collect stats from LRO */ 847 rq_stats->sw_lro_queued = rq->lro.lro_queued; 848 rq_stats->sw_lro_flushed = rq->lro.lro_flushed; 849 sw_lro_queued += rq_stats->sw_lro_queued; 850 sw_lro_flushed += rq_stats->sw_lro_flushed; 851 lro_packets += rq_stats->lro_packets; 852 lro_bytes += rq_stats->lro_bytes; 853 rx_csum_none += rq_stats->csum_none; 854 rx_wqe_err += rq_stats->wqe_err; 855 rx_packets += rq_stats->packets; 856 rx_bytes += rq_stats->bytes; 857 rx_decrypted_error += rq_stats->decrypted_error_packets; 858 rx_decrypted_ok += rq_stats->decrypted_ok_packets; 859 860 for (j = 0; j < priv->num_tc; j++) { 861 sq_stats = &pch->sq[j].stats; 862 863 tso_packets += sq_stats->tso_packets; 864 tso_bytes += sq_stats->tso_bytes; 865 tx_queue_dropped += sq_stats->dropped; 866 tx_queue_dropped += sq_stats->enobuf; 867 tx_defragged += sq_stats->defragged; 868 tx_offload_none += sq_stats->csum_offload_none; 869 } 870 } 871 872 #ifdef RATELIMIT 873 /* Collect statistics from all rate-limit queues */ 874 for (j = 0; j < priv->rl.param.tx_worker_threads_def; j++) { 875 struct mlx5e_rl_worker *rlw = priv->rl.workers + j; 876 877 for (i = 0; i < priv->rl.param.tx_channels_per_worker_def; i++) { 878 struct mlx5e_rl_channel *channel = rlw->channels + i; 879 struct mlx5e_sq *sq = channel->sq; 880 881 if (sq == NULL) 882 continue; 883 884 sq_stats = &sq->stats; 885 886 tso_packets += sq_stats->tso_packets; 887 tso_bytes += sq_stats->tso_bytes; 888 tx_queue_dropped += sq_stats->dropped; 889 tx_queue_dropped += sq_stats->enobuf; 890 tx_defragged += sq_stats->defragged; 891 tx_offload_none += sq_stats->csum_offload_none; 892 } 893 } 894 #endif 895 896 /* update counters */ 897 s->tso_packets = tso_packets; 898 s->tso_bytes = tso_bytes; 899 s->tx_queue_dropped = tx_queue_dropped; 900 s->tx_defragged = tx_defragged; 901 s->lro_packets = lro_packets; 902 s->lro_bytes = lro_bytes; 903 s->sw_lro_queued = sw_lro_queued; 904 s->sw_lro_flushed = sw_lro_flushed; 905 s->rx_csum_none = rx_csum_none; 906 s->rx_wqe_err = rx_wqe_err; 907 s->rx_packets = rx_packets; 908 s->rx_bytes = rx_bytes; 909 s->rx_decrypted_error_packets = rx_decrypted_error; 910 s->rx_decrypted_ok_packets = rx_decrypted_ok; 911 912 mlx5e_grp_vnic_env_update_stats(priv); 913 914 /* HW counters */ 915 memset(in, 0, sizeof(in)); 916 917 MLX5_SET(query_vport_counter_in, in, opcode, 918 MLX5_CMD_OP_QUERY_VPORT_COUNTER); 919 MLX5_SET(query_vport_counter_in, in, op_mod, 0); 920 MLX5_SET(query_vport_counter_in, in, other_vport, 0); 921 922 memset(out, 0, outlen); 923 924 /* get number of out-of-buffer drops first */ 925 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 && 926 mlx5_vport_query_out_of_rx_buffer(mdev, priv->counter_set_id, 927 &rx_out_of_buffer) == 0) { 928 s->rx_out_of_buffer = rx_out_of_buffer; 929 } 930 931 /* get port statistics */ 932 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen) == 0) { 933 #define MLX5_GET_CTR(out, x) \ 934 MLX5_GET64(query_vport_counter_out, out, x) 935 936 s->rx_error_packets = 937 MLX5_GET_CTR(out, received_errors.packets); 938 s->rx_error_bytes = 939 MLX5_GET_CTR(out, received_errors.octets); 940 s->tx_error_packets = 941 MLX5_GET_CTR(out, transmit_errors.packets); 942 s->tx_error_bytes = 943 MLX5_GET_CTR(out, transmit_errors.octets); 944 945 s->rx_unicast_packets = 946 MLX5_GET_CTR(out, received_eth_unicast.packets); 947 s->rx_unicast_bytes = 948 MLX5_GET_CTR(out, received_eth_unicast.octets); 949 s->tx_unicast_packets = 950 MLX5_GET_CTR(out, transmitted_eth_unicast.packets); 951 s->tx_unicast_bytes = 952 MLX5_GET_CTR(out, transmitted_eth_unicast.octets); 953 954 s->rx_multicast_packets = 955 MLX5_GET_CTR(out, received_eth_multicast.packets); 956 s->rx_multicast_bytes = 957 MLX5_GET_CTR(out, received_eth_multicast.octets); 958 s->tx_multicast_packets = 959 MLX5_GET_CTR(out, transmitted_eth_multicast.packets); 960 s->tx_multicast_bytes = 961 MLX5_GET_CTR(out, transmitted_eth_multicast.octets); 962 963 s->rx_broadcast_packets = 964 MLX5_GET_CTR(out, received_eth_broadcast.packets); 965 s->rx_broadcast_bytes = 966 MLX5_GET_CTR(out, received_eth_broadcast.octets); 967 s->tx_broadcast_packets = 968 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets); 969 s->tx_broadcast_bytes = 970 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets); 971 972 s->tx_packets = s->tx_unicast_packets + 973 s->tx_multicast_packets + s->tx_broadcast_packets; 974 s->tx_bytes = s->tx_unicast_bytes + s->tx_multicast_bytes + 975 s->tx_broadcast_bytes; 976 977 /* Update calculated offload counters */ 978 s->tx_csum_offload = s->tx_packets - tx_offload_none; 979 s->rx_csum_good = s->rx_packets - s->rx_csum_none; 980 } 981 982 /* Get physical port counters */ 983 mlx5e_update_pport_counters(priv); 984 985 s->tx_jumbo_packets = 986 priv->stats.port_stats_debug.tx_stat_p1519to2047octets + 987 priv->stats.port_stats_debug.tx_stat_p2048to4095octets + 988 priv->stats.port_stats_debug.tx_stat_p4096to8191octets + 989 priv->stats.port_stats_debug.tx_stat_p8192to10239octets; 990 991 free_out: 992 kvfree(out); 993 994 /* Update diagnostics, if any */ 995 if (priv->params_ethtool.diag_pci_enable || 996 priv->params_ethtool.diag_general_enable) { 997 error = mlx5_core_get_diagnostics_full(mdev, 998 priv->params_ethtool.diag_pci_enable ? &priv->params_pci : NULL, 999 priv->params_ethtool.diag_general_enable ? &priv->params_general : NULL); 1000 if (error != 0) 1001 mlx5_en_err(priv->ifp, 1002 "Failed reading diagnostics: %d\n", error); 1003 } 1004 1005 /* Update FEC, if any */ 1006 error = mlx5e_fec_update(priv); 1007 if (error != 0 && error != EOPNOTSUPP) { 1008 mlx5_en_err(priv->ifp, 1009 "Updating FEC failed: %d\n", error); 1010 } 1011 1012 /* Update temperature, if any */ 1013 if (priv->params_ethtool.hw_num_temp != 0) { 1014 error = mlx5e_hw_temperature_update(priv); 1015 if (error != 0 && error != EOPNOTSUPP) { 1016 mlx5_en_err(priv->ifp, 1017 "Updating temperature failed: %d\n", error); 1018 } 1019 } 1020 } 1021 1022 static void 1023 mlx5e_update_stats_work(struct work_struct *work) 1024 { 1025 struct mlx5e_priv *priv; 1026 1027 priv = container_of(work, struct mlx5e_priv, update_stats_work); 1028 PRIV_LOCK(priv); 1029 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 && 1030 !test_bit(MLX5_INTERFACE_STATE_TEARDOWN, &priv->mdev->intf_state)) 1031 mlx5e_update_stats_locked(priv); 1032 PRIV_UNLOCK(priv); 1033 } 1034 1035 static void 1036 mlx5e_update_stats(void *arg) 1037 { 1038 struct mlx5e_priv *priv = arg; 1039 1040 queue_work(priv->wq, &priv->update_stats_work); 1041 1042 callout_reset(&priv->watchdog, hz / 4, &mlx5e_update_stats, priv); 1043 } 1044 1045 static void 1046 mlx5e_async_event_sub(struct mlx5e_priv *priv, 1047 enum mlx5_dev_event event) 1048 { 1049 switch (event) { 1050 case MLX5_DEV_EVENT_PORT_UP: 1051 case MLX5_DEV_EVENT_PORT_DOWN: 1052 queue_work(priv->wq, &priv->update_carrier_work); 1053 break; 1054 1055 default: 1056 break; 1057 } 1058 } 1059 1060 static void 1061 mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, 1062 enum mlx5_dev_event event, unsigned long param) 1063 { 1064 struct mlx5e_priv *priv = vpriv; 1065 1066 mtx_lock(&priv->async_events_mtx); 1067 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state)) 1068 mlx5e_async_event_sub(priv, event); 1069 mtx_unlock(&priv->async_events_mtx); 1070 } 1071 1072 static void 1073 mlx5e_enable_async_events(struct mlx5e_priv *priv) 1074 { 1075 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); 1076 } 1077 1078 static void 1079 mlx5e_disable_async_events(struct mlx5e_priv *priv) 1080 { 1081 mtx_lock(&priv->async_events_mtx); 1082 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); 1083 mtx_unlock(&priv->async_events_mtx); 1084 } 1085 1086 static void mlx5e_calibration_callout(void *arg); 1087 static int mlx5e_calibration_duration = 20; 1088 static int mlx5e_fast_calibration = 1; 1089 static int mlx5e_normal_calibration = 30; 1090 1091 static SYSCTL_NODE(_hw_mlx5, OID_AUTO, calibr, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 1092 "MLX5 timestamp calibration parameters"); 1093 1094 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, duration, CTLFLAG_RWTUN, 1095 &mlx5e_calibration_duration, 0, 1096 "Duration of initial calibration"); 1097 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, fast, CTLFLAG_RWTUN, 1098 &mlx5e_fast_calibration, 0, 1099 "Recalibration interval during initial calibration"); 1100 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, normal, CTLFLAG_RWTUN, 1101 &mlx5e_normal_calibration, 0, 1102 "Recalibration interval during normal operations"); 1103 1104 /* 1105 * Ignites the calibration process. 1106 */ 1107 static void 1108 mlx5e_reset_calibration_callout(struct mlx5e_priv *priv) 1109 { 1110 1111 if (priv->clbr_done == 0) 1112 mlx5e_calibration_callout(priv); 1113 else 1114 callout_reset_sbt_curcpu(&priv->tstmp_clbr, (priv->clbr_done < 1115 mlx5e_calibration_duration ? mlx5e_fast_calibration : 1116 mlx5e_normal_calibration) * SBT_1S, 0, 1117 mlx5e_calibration_callout, priv, C_DIRECT_EXEC); 1118 } 1119 1120 static uint64_t 1121 mlx5e_timespec2usec(const struct timespec *ts) 1122 { 1123 1124 return ((uint64_t)ts->tv_sec * 1000000000 + ts->tv_nsec); 1125 } 1126 1127 static uint64_t 1128 mlx5e_hw_clock(struct mlx5e_priv *priv) 1129 { 1130 struct mlx5_init_seg *iseg; 1131 uint32_t hw_h, hw_h1, hw_l; 1132 1133 iseg = priv->mdev->iseg; 1134 do { 1135 hw_h = ioread32be(&iseg->internal_timer_h); 1136 hw_l = ioread32be(&iseg->internal_timer_l); 1137 hw_h1 = ioread32be(&iseg->internal_timer_h); 1138 } while (hw_h1 != hw_h); 1139 return (((uint64_t)hw_h << 32) | hw_l); 1140 } 1141 1142 /* 1143 * The calibration callout, it runs either in the context of the 1144 * thread which enables calibration, or in callout. It takes the 1145 * snapshot of system and adapter clocks, then advances the pointers to 1146 * the calibration point to allow rx path to read the consistent data 1147 * lockless. 1148 */ 1149 static void 1150 mlx5e_calibration_callout(void *arg) 1151 { 1152 struct mlx5e_priv *priv; 1153 struct mlx5e_clbr_point *next, *curr; 1154 struct timespec ts; 1155 int clbr_curr_next; 1156 1157 priv = arg; 1158 curr = &priv->clbr_points[priv->clbr_curr]; 1159 clbr_curr_next = priv->clbr_curr + 1; 1160 if (clbr_curr_next >= nitems(priv->clbr_points)) 1161 clbr_curr_next = 0; 1162 next = &priv->clbr_points[clbr_curr_next]; 1163 1164 next->base_prev = curr->base_curr; 1165 next->clbr_hw_prev = curr->clbr_hw_curr; 1166 1167 next->clbr_hw_curr = mlx5e_hw_clock(priv); 1168 if (((next->clbr_hw_curr - curr->clbr_hw_curr) >> MLX5E_TSTMP_PREC) == 1169 0) { 1170 if (priv->clbr_done != 0) { 1171 mlx5_en_err(priv->ifp, 1172 "HW failed tstmp frozen %#jx %#jx, disabling\n", 1173 next->clbr_hw_curr, curr->clbr_hw_prev); 1174 priv->clbr_done = 0; 1175 } 1176 atomic_store_rel_int(&curr->clbr_gen, 0); 1177 return; 1178 } 1179 1180 nanouptime(&ts); 1181 next->base_curr = mlx5e_timespec2usec(&ts); 1182 1183 curr->clbr_gen = 0; 1184 atomic_thread_fence_rel(); 1185 priv->clbr_curr = clbr_curr_next; 1186 atomic_store_rel_int(&next->clbr_gen, ++(priv->clbr_gen)); 1187 1188 if (priv->clbr_done < mlx5e_calibration_duration) 1189 priv->clbr_done++; 1190 mlx5e_reset_calibration_callout(priv); 1191 } 1192 1193 static const char *mlx5e_rq_stats_desc[] = { 1194 MLX5E_RQ_STATS(MLX5E_STATS_DESC) 1195 }; 1196 1197 static int 1198 mlx5e_create_rq(struct mlx5e_channel *c, 1199 struct mlx5e_rq_param *param, 1200 struct mlx5e_rq *rq) 1201 { 1202 struct mlx5e_priv *priv = c->priv; 1203 struct mlx5_core_dev *mdev = priv->mdev; 1204 char buffer[16]; 1205 void *rqc = param->rqc; 1206 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); 1207 int wq_sz; 1208 int err; 1209 int i; 1210 u32 nsegs, wqe_sz; 1211 1212 err = mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs); 1213 if (err != 0) 1214 goto done; 1215 1216 /* Create DMA descriptor TAG */ 1217 if ((err = -bus_dma_tag_create( 1218 bus_get_dma_tag(mdev->pdev->dev.bsddev), 1219 1, /* any alignment */ 1220 0, /* no boundary */ 1221 BUS_SPACE_MAXADDR, /* lowaddr */ 1222 BUS_SPACE_MAXADDR, /* highaddr */ 1223 NULL, NULL, /* filter, filterarg */ 1224 nsegs * MLX5E_MAX_RX_BYTES, /* maxsize */ 1225 nsegs, /* nsegments */ 1226 nsegs * MLX5E_MAX_RX_BYTES, /* maxsegsize */ 1227 0, /* flags */ 1228 NULL, NULL, /* lockfunc, lockfuncarg */ 1229 &rq->dma_tag))) 1230 goto done; 1231 1232 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, 1233 &rq->wq_ctrl); 1234 if (err) 1235 goto err_free_dma_tag; 1236 1237 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; 1238 1239 err = mlx5e_get_wqe_sz(priv, &rq->wqe_sz, &rq->nsegs); 1240 if (err != 0) 1241 goto err_rq_wq_destroy; 1242 1243 wq_sz = mlx5_wq_ll_get_size(&rq->wq); 1244 1245 err = -tcp_lro_init_args(&rq->lro, priv->ifp, TCP_LRO_ENTRIES, wq_sz); 1246 if (err) 1247 goto err_rq_wq_destroy; 1248 1249 rq->mbuf = malloc_domainset(wq_sz * sizeof(rq->mbuf[0]), M_MLX5EN, 1250 mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO); 1251 for (i = 0; i != wq_sz; i++) { 1252 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); 1253 int j; 1254 1255 err = -bus_dmamap_create(rq->dma_tag, 0, &rq->mbuf[i].dma_map); 1256 if (err != 0) { 1257 while (i--) 1258 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map); 1259 goto err_rq_mbuf_free; 1260 } 1261 1262 /* set value for constant fields */ 1263 for (j = 0; j < rq->nsegs; j++) 1264 wqe->data[j].lkey = cpu_to_be32(priv->mr.key); 1265 } 1266 1267 INIT_WORK(&rq->dim.work, mlx5e_dim_work); 1268 if (priv->params.rx_cq_moderation_mode < 2) { 1269 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 1270 } else { 1271 void *cqc = container_of(param, 1272 struct mlx5e_channel_param, rq)->rx_cq.cqc; 1273 1274 switch (MLX5_GET(cqc, cqc, cq_period_mode)) { 1275 case MLX5_CQ_PERIOD_MODE_START_FROM_EQE: 1276 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE; 1277 break; 1278 case MLX5_CQ_PERIOD_MODE_START_FROM_CQE: 1279 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE; 1280 break; 1281 default: 1282 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 1283 break; 1284 } 1285 } 1286 1287 rq->ifp = priv->ifp; 1288 rq->channel = c; 1289 rq->ix = c->ix; 1290 1291 snprintf(buffer, sizeof(buffer), "rxstat%d", c->ix); 1292 mlx5e_create_stats(&rq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 1293 buffer, mlx5e_rq_stats_desc, MLX5E_RQ_STATS_NUM, 1294 rq->stats.arg); 1295 return (0); 1296 1297 err_rq_mbuf_free: 1298 free(rq->mbuf, M_MLX5EN); 1299 tcp_lro_free(&rq->lro); 1300 err_rq_wq_destroy: 1301 mlx5_wq_destroy(&rq->wq_ctrl); 1302 err_free_dma_tag: 1303 bus_dma_tag_destroy(rq->dma_tag); 1304 done: 1305 return (err); 1306 } 1307 1308 static void 1309 mlx5e_destroy_rq(struct mlx5e_rq *rq) 1310 { 1311 int wq_sz; 1312 int i; 1313 1314 /* destroy all sysctl nodes */ 1315 sysctl_ctx_free(&rq->stats.ctx); 1316 1317 /* free leftover LRO packets, if any */ 1318 tcp_lro_free(&rq->lro); 1319 1320 wq_sz = mlx5_wq_ll_get_size(&rq->wq); 1321 for (i = 0; i != wq_sz; i++) { 1322 if (rq->mbuf[i].mbuf != NULL) { 1323 bus_dmamap_unload(rq->dma_tag, rq->mbuf[i].dma_map); 1324 m_freem(rq->mbuf[i].mbuf); 1325 } 1326 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map); 1327 } 1328 free(rq->mbuf, M_MLX5EN); 1329 mlx5_wq_destroy(&rq->wq_ctrl); 1330 bus_dma_tag_destroy(rq->dma_tag); 1331 } 1332 1333 static int 1334 mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) 1335 { 1336 struct mlx5e_channel *c = rq->channel; 1337 struct mlx5e_priv *priv = c->priv; 1338 struct mlx5_core_dev *mdev = priv->mdev; 1339 void *in; 1340 void *rqc; 1341 void *wq; 1342 int inlen; 1343 int err; 1344 u8 ts_format; 1345 1346 inlen = MLX5_ST_SZ_BYTES(create_rq_in) + 1347 sizeof(u64) * rq->wq_ctrl.buf.npages; 1348 in = mlx5_vzalloc(inlen); 1349 if (in == NULL) 1350 return (-ENOMEM); 1351 1352 ts_format = mlx5_get_rq_default_ts(mdev); 1353 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); 1354 wq = MLX5_ADDR_OF(rqc, rqc, wq); 1355 1356 memcpy(rqc, param->rqc, sizeof(param->rqc)); 1357 1358 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); 1359 MLX5_SET(rqc, rqc, ts_format, ts_format); 1360 MLX5_SET(rqc, rqc, flush_in_error_en, 1); 1361 if (priv->counter_set_id >= 0) 1362 MLX5_SET(rqc, rqc, counter_set_id, priv->counter_set_id); 1363 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - 1364 MLX5_ADAPTER_PAGE_SHIFT); 1365 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); 1366 1367 mlx5_fill_page_array(&rq->wq_ctrl.buf, 1368 (__be64 *) MLX5_ADDR_OF(wq, wq, pas)); 1369 1370 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); 1371 1372 kvfree(in); 1373 1374 return (err); 1375 } 1376 1377 static int 1378 mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state) 1379 { 1380 struct mlx5e_channel *c = rq->channel; 1381 struct mlx5e_priv *priv = c->priv; 1382 struct mlx5_core_dev *mdev = priv->mdev; 1383 1384 void *in; 1385 void *rqc; 1386 int inlen; 1387 int err; 1388 1389 inlen = MLX5_ST_SZ_BYTES(modify_rq_in); 1390 in = mlx5_vzalloc(inlen); 1391 if (in == NULL) 1392 return (-ENOMEM); 1393 1394 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); 1395 1396 MLX5_SET(modify_rq_in, in, rqn, rq->rqn); 1397 MLX5_SET(modify_rq_in, in, rq_state, curr_state); 1398 MLX5_SET(rqc, rqc, state, next_state); 1399 1400 err = mlx5_core_modify_rq(mdev, in, inlen); 1401 1402 kvfree(in); 1403 1404 return (err); 1405 } 1406 1407 static void 1408 mlx5e_disable_rq(struct mlx5e_rq *rq) 1409 { 1410 struct mlx5e_channel *c = rq->channel; 1411 struct mlx5e_priv *priv = c->priv; 1412 struct mlx5_core_dev *mdev = priv->mdev; 1413 1414 mlx5_core_destroy_rq(mdev, rq->rqn); 1415 } 1416 1417 static int 1418 mlx5e_open_rq(struct mlx5e_channel *c, 1419 struct mlx5e_rq_param *param, 1420 struct mlx5e_rq *rq) 1421 { 1422 int err; 1423 1424 err = mlx5e_create_rq(c, param, rq); 1425 if (err) 1426 return (err); 1427 1428 /* set CQN in RQ parameters */ 1429 MLX5_SET(rqc, param->rqc, cqn, c->rq.cq.mcq.cqn); 1430 1431 err = mlx5e_enable_rq(rq, param); 1432 if (err) 1433 goto err_destroy_rq; 1434 1435 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 1436 if (err) 1437 goto err_disable_rq; 1438 1439 c->rq.enabled = 1; 1440 1441 return (0); 1442 1443 err_disable_rq: 1444 mlx5e_disable_rq(rq); 1445 err_destroy_rq: 1446 mlx5e_destroy_rq(rq); 1447 1448 return (err); 1449 } 1450 1451 static void 1452 mlx5e_close_rq(struct mlx5e_rq *rq) 1453 { 1454 mtx_lock(&rq->mtx); 1455 rq->enabled = 0; 1456 callout_stop(&rq->watchdog); 1457 mtx_unlock(&rq->mtx); 1458 1459 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 1460 } 1461 1462 static void 1463 mlx5e_close_rq_wait(struct mlx5e_rq *rq) 1464 { 1465 1466 mlx5e_disable_rq(rq); 1467 mlx5e_close_cq(&rq->cq); 1468 cancel_work_sync(&rq->dim.work); 1469 mlx5e_destroy_rq(rq); 1470 } 1471 1472 /* 1473 * What is a drop RQ and why is it needed? 1474 * 1475 * The RSS indirection table, also called the RQT, selects the 1476 * destination RQ based on the receive queue number, RQN. The RQT is 1477 * frequently referred to by flow steering rules to distribute traffic 1478 * among multiple RQs. The problem is that the RQs cannot be destroyed 1479 * before the RQT referring them is destroyed too. Further, TLS RX 1480 * rules may still be referring to the RQT even if the link went 1481 * down. Because there is no magic RQN for dropping packets, we create 1482 * a dummy RQ, also called drop RQ, which sole purpose is to drop all 1483 * received packets. When the link goes down this RQN is filled in all 1484 * RQT entries, of the main RQT, so the real RQs which are about to be 1485 * destroyed can be released and the TLS RX rules can be sustained. 1486 */ 1487 static void 1488 mlx5e_open_drop_rq_comp(struct mlx5_core_cq *mcq __unused, struct mlx5_eqe *eqe __unused) 1489 { 1490 } 1491 1492 static int 1493 mlx5e_open_drop_rq(struct mlx5e_priv *priv, 1494 struct mlx5e_rq *drop_rq) 1495 { 1496 struct mlx5e_cq_param param_cq = {}; 1497 struct mlx5e_rq_param param_rq = {}; 1498 void *rqc_wq = MLX5_ADDR_OF(rqc, param_rq.rqc, wq); 1499 int err; 1500 1501 /* set channel pointer */ 1502 drop_rq->channel = priv->channel; 1503 1504 /* set basic CQ parameters needed */ 1505 MLX5_SET(cqc, param_cq.cqc, log_cq_size, 0); 1506 MLX5_SET(cqc, param_cq.cqc, uar_page, priv->mdev->priv.uar->index); 1507 1508 /* open receive completion queue */ 1509 err = mlx5e_open_cq(priv, ¶m_cq, &drop_rq->cq, 1510 &mlx5e_open_drop_rq_comp, 0); 1511 if (err) 1512 goto err_done; 1513 1514 /* set basic WQ parameters needed */ 1515 MLX5_SET(wq, rqc_wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); 1516 MLX5_SET(wq, rqc_wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); 1517 MLX5_SET(wq, rqc_wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) + sizeof(struct mlx5_wqe_data_seg))); 1518 MLX5_SET(wq, rqc_wq, log_wq_sz, 0); 1519 MLX5_SET(wq, rqc_wq, pd, priv->pdn); 1520 1521 param_rq.wq.linear = 1; 1522 1523 err = mlx5_wq_ll_create(priv->mdev, ¶m_rq.wq, rqc_wq, &drop_rq->wq, 1524 &drop_rq->wq_ctrl); 1525 if (err) 1526 goto err_close_cq; 1527 1528 /* set CQN in RQ parameters */ 1529 MLX5_SET(rqc, param_rq.rqc, cqn, drop_rq->cq.mcq.cqn); 1530 1531 err = mlx5e_enable_rq(drop_rq, ¶m_rq); 1532 if (err) 1533 goto err_wq_destroy; 1534 1535 err = mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 1536 if (err) 1537 goto err_disable_rq; 1538 1539 return (err); 1540 1541 err_disable_rq: 1542 mlx5e_disable_rq(drop_rq); 1543 err_wq_destroy: 1544 mlx5_wq_destroy(&drop_rq->wq_ctrl); 1545 err_close_cq: 1546 mlx5e_close_cq(&drop_rq->cq); 1547 err_done: 1548 return (err); 1549 } 1550 1551 static void 1552 mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq) 1553 { 1554 mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 1555 mlx5e_disable_rq(drop_rq); 1556 mlx5_wq_destroy(&drop_rq->wq_ctrl); 1557 mlx5e_close_cq(&drop_rq->cq); 1558 } 1559 1560 void 1561 mlx5e_free_sq_db(struct mlx5e_sq *sq) 1562 { 1563 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); 1564 int x; 1565 1566 for (x = 0; x != wq_sz; x++) { 1567 if (sq->mbuf[x].mbuf != NULL) { 1568 bus_dmamap_unload(sq->dma_tag, sq->mbuf[x].dma_map); 1569 m_freem(sq->mbuf[x].mbuf); 1570 } 1571 if (sq->mbuf[x].mst != NULL) { 1572 m_snd_tag_rele(sq->mbuf[x].mst); 1573 sq->mbuf[x].mst = NULL; 1574 } 1575 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map); 1576 } 1577 free(sq->mbuf, M_MLX5EN); 1578 } 1579 1580 int 1581 mlx5e_alloc_sq_db(struct mlx5e_sq *sq) 1582 { 1583 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); 1584 int err; 1585 int x; 1586 1587 sq->mbuf = malloc_domainset(wq_sz * sizeof(sq->mbuf[0]), M_MLX5EN, 1588 mlx5_dev_domainset(sq->priv->mdev), M_WAITOK | M_ZERO); 1589 1590 /* Create DMA descriptor MAPs */ 1591 for (x = 0; x != wq_sz; x++) { 1592 err = -bus_dmamap_create(sq->dma_tag, 0, &sq->mbuf[x].dma_map); 1593 if (err != 0) { 1594 while (x--) 1595 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map); 1596 free(sq->mbuf, M_MLX5EN); 1597 return (err); 1598 } 1599 } 1600 return (0); 1601 } 1602 1603 static const char *mlx5e_sq_stats_desc[] = { 1604 MLX5E_SQ_STATS(MLX5E_STATS_DESC) 1605 }; 1606 1607 void 1608 mlx5e_update_sq_inline(struct mlx5e_sq *sq) 1609 { 1610 sq->max_inline = sq->priv->params.tx_max_inline; 1611 sq->min_inline_mode = sq->priv->params.tx_min_inline_mode; 1612 1613 /* 1614 * Check if trust state is DSCP or if inline mode is NONE which 1615 * indicates CX-5 or newer hardware. 1616 */ 1617 if (sq->priv->params_ethtool.trust_state != MLX5_QPTS_TRUST_PCP || 1618 sq->min_inline_mode == MLX5_INLINE_MODE_NONE) { 1619 if (MLX5_CAP_ETH(sq->priv->mdev, wqe_vlan_insert)) 1620 sq->min_insert_caps = MLX5E_INSERT_VLAN | MLX5E_INSERT_NON_VLAN; 1621 else 1622 sq->min_insert_caps = MLX5E_INSERT_NON_VLAN; 1623 } else { 1624 sq->min_insert_caps = 0; 1625 } 1626 } 1627 1628 static void 1629 mlx5e_refresh_sq_inline_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c) 1630 { 1631 int i; 1632 1633 for (i = 0; i != priv->num_tc; i++) { 1634 mtx_lock(&c->sq[i].lock); 1635 mlx5e_update_sq_inline(&c->sq[i]); 1636 mtx_unlock(&c->sq[i].lock); 1637 } 1638 } 1639 1640 void 1641 mlx5e_refresh_sq_inline(struct mlx5e_priv *priv) 1642 { 1643 int i; 1644 1645 /* check if channels are closed */ 1646 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 1647 return; 1648 1649 for (i = 0; i < priv->params.num_channels; i++) 1650 mlx5e_refresh_sq_inline_sub(priv, &priv->channel[i]); 1651 } 1652 1653 static int 1654 mlx5e_create_sq(struct mlx5e_channel *c, 1655 int tc, 1656 struct mlx5e_sq_param *param, 1657 struct mlx5e_sq *sq) 1658 { 1659 struct mlx5e_priv *priv = c->priv; 1660 struct mlx5_core_dev *mdev = priv->mdev; 1661 char buffer[16]; 1662 void *sqc = param->sqc; 1663 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq); 1664 int err; 1665 1666 /* Create DMA descriptor TAG */ 1667 if ((err = -bus_dma_tag_create( 1668 bus_get_dma_tag(mdev->pdev->dev.bsddev), 1669 1, /* any alignment */ 1670 0, /* no boundary */ 1671 BUS_SPACE_MAXADDR, /* lowaddr */ 1672 BUS_SPACE_MAXADDR, /* highaddr */ 1673 NULL, NULL, /* filter, filterarg */ 1674 MLX5E_MAX_TX_PAYLOAD_SIZE, /* maxsize */ 1675 MLX5E_MAX_TX_MBUF_FRAGS, /* nsegments */ 1676 MLX5E_MAX_TX_MBUF_SIZE, /* maxsegsize */ 1677 0, /* flags */ 1678 NULL, NULL, /* lockfunc, lockfuncarg */ 1679 &sq->dma_tag))) 1680 goto done; 1681 1682 sq->mkey_be = cpu_to_be32(priv->mr.key); 1683 sq->ifp = priv->ifp; 1684 sq->priv = priv; 1685 sq->tc = tc; 1686 1687 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, 1688 &sq->wq_ctrl); 1689 if (err) 1690 goto err_free_dma_tag; 1691 1692 sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; 1693 1694 err = mlx5e_alloc_sq_db(sq); 1695 if (err) 1696 goto err_sq_wq_destroy; 1697 1698 mlx5e_update_sq_inline(sq); 1699 1700 snprintf(buffer, sizeof(buffer), "txstat%dtc%d", c->ix, tc); 1701 mlx5e_create_stats(&sq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 1702 buffer, mlx5e_sq_stats_desc, MLX5E_SQ_STATS_NUM, 1703 sq->stats.arg); 1704 1705 return (0); 1706 1707 err_sq_wq_destroy: 1708 mlx5_wq_destroy(&sq->wq_ctrl); 1709 1710 err_free_dma_tag: 1711 bus_dma_tag_destroy(sq->dma_tag); 1712 done: 1713 return (err); 1714 } 1715 1716 static void 1717 mlx5e_destroy_sq(struct mlx5e_sq *sq) 1718 { 1719 /* destroy all sysctl nodes */ 1720 sysctl_ctx_free(&sq->stats.ctx); 1721 1722 mlx5e_free_sq_db(sq); 1723 mlx5_wq_destroy(&sq->wq_ctrl); 1724 bus_dma_tag_destroy(sq->dma_tag); 1725 } 1726 1727 int 1728 mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param, 1729 const struct mlx5_sq_bfreg *bfreg, int tis_num) 1730 { 1731 void *in; 1732 void *sqc; 1733 void *wq; 1734 int inlen; 1735 int err; 1736 u8 ts_format; 1737 1738 inlen = MLX5_ST_SZ_BYTES(create_sq_in) + 1739 sizeof(u64) * sq->wq_ctrl.buf.npages; 1740 in = mlx5_vzalloc(inlen); 1741 if (in == NULL) 1742 return (-ENOMEM); 1743 1744 sq->uar_map = bfreg->map; 1745 1746 ts_format = mlx5_get_sq_default_ts(sq->priv->mdev); 1747 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); 1748 wq = MLX5_ADDR_OF(sqc, sqc, wq); 1749 1750 memcpy(sqc, param->sqc, sizeof(param->sqc)); 1751 1752 MLX5_SET(sqc, sqc, tis_num_0, tis_num); 1753 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn); 1754 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); 1755 MLX5_SET(sqc, sqc, ts_format, ts_format); 1756 MLX5_SET(sqc, sqc, tis_lst_sz, 1); 1757 MLX5_SET(sqc, sqc, flush_in_error_en, 1); 1758 MLX5_SET(sqc, sqc, allow_swp, 1); 1759 1760 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); 1761 MLX5_SET(wq, wq, uar_page, bfreg->index); 1762 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift - 1763 MLX5_ADAPTER_PAGE_SHIFT); 1764 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma); 1765 1766 mlx5_fill_page_array(&sq->wq_ctrl.buf, 1767 (__be64 *) MLX5_ADDR_OF(wq, wq, pas)); 1768 1769 err = mlx5_core_create_sq(sq->priv->mdev, in, inlen, &sq->sqn); 1770 1771 kvfree(in); 1772 1773 return (err); 1774 } 1775 1776 int 1777 mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state) 1778 { 1779 void *in; 1780 void *sqc; 1781 int inlen; 1782 int err; 1783 1784 inlen = MLX5_ST_SZ_BYTES(modify_sq_in); 1785 in = mlx5_vzalloc(inlen); 1786 if (in == NULL) 1787 return (-ENOMEM); 1788 1789 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); 1790 1791 MLX5_SET(modify_sq_in, in, sqn, sq->sqn); 1792 MLX5_SET(modify_sq_in, in, sq_state, curr_state); 1793 MLX5_SET(sqc, sqc, state, next_state); 1794 1795 err = mlx5_core_modify_sq(sq->priv->mdev, in, inlen); 1796 1797 kvfree(in); 1798 1799 return (err); 1800 } 1801 1802 void 1803 mlx5e_disable_sq(struct mlx5e_sq *sq) 1804 { 1805 1806 mlx5_core_destroy_sq(sq->priv->mdev, sq->sqn); 1807 } 1808 1809 static int 1810 mlx5e_open_sq(struct mlx5e_channel *c, 1811 int tc, 1812 struct mlx5e_sq_param *param, 1813 struct mlx5e_sq *sq) 1814 { 1815 int err; 1816 1817 sq->cev_factor = c->priv->params_ethtool.tx_completion_fact; 1818 1819 /* ensure the TX completion event factor is not zero */ 1820 if (sq->cev_factor == 0) 1821 sq->cev_factor = 1; 1822 1823 err = mlx5e_create_sq(c, tc, param, sq); 1824 if (err) 1825 return (err); 1826 1827 err = mlx5e_enable_sq(sq, param, &c->bfreg, c->priv->tisn[tc]); 1828 if (err) 1829 goto err_destroy_sq; 1830 1831 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY); 1832 if (err) 1833 goto err_disable_sq; 1834 1835 WRITE_ONCE(sq->running, 1); 1836 1837 return (0); 1838 1839 err_disable_sq: 1840 mlx5e_disable_sq(sq); 1841 err_destroy_sq: 1842 mlx5e_destroy_sq(sq); 1843 1844 return (err); 1845 } 1846 1847 static void 1848 mlx5e_sq_send_nops_locked(struct mlx5e_sq *sq, int can_sleep) 1849 { 1850 /* fill up remainder with NOPs */ 1851 while (sq->cev_counter != 0) { 1852 while (!mlx5e_sq_has_room_for(sq, 1)) { 1853 if (can_sleep != 0) { 1854 mtx_unlock(&sq->lock); 1855 msleep(4); 1856 mtx_lock(&sq->lock); 1857 } else { 1858 goto done; 1859 } 1860 } 1861 /* send a single NOP */ 1862 mlx5e_send_nop(sq, 1); 1863 atomic_thread_fence_rel(); 1864 } 1865 done: 1866 mlx5e_tx_notify_hw(sq, false); 1867 } 1868 1869 void 1870 mlx5e_sq_cev_timeout(void *arg) 1871 { 1872 struct mlx5e_sq *sq = arg; 1873 1874 mtx_assert(&sq->lock, MA_OWNED); 1875 1876 /* check next state */ 1877 switch (sq->cev_next_state) { 1878 case MLX5E_CEV_STATE_SEND_NOPS: 1879 /* fill TX ring with NOPs, if any */ 1880 mlx5e_sq_send_nops_locked(sq, 0); 1881 1882 /* check if completed */ 1883 if (sq->cev_counter == 0) { 1884 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL; 1885 return; 1886 } 1887 break; 1888 default: 1889 /* send NOPs on next timeout */ 1890 sq->cev_next_state = MLX5E_CEV_STATE_SEND_NOPS; 1891 break; 1892 } 1893 1894 /* restart timer */ 1895 callout_reset_curcpu(&sq->cev_callout, hz, mlx5e_sq_cev_timeout, sq); 1896 } 1897 1898 void 1899 mlx5e_drain_sq(struct mlx5e_sq *sq) 1900 { 1901 int error; 1902 struct mlx5_core_dev *mdev= sq->priv->mdev; 1903 1904 /* 1905 * Check if already stopped. 1906 * 1907 * NOTE: Serialization of this function is managed by the 1908 * caller ensuring the priv's state lock is locked or in case 1909 * of rate limit support, a single thread manages drain and 1910 * resume of SQs. The "running" variable can therefore safely 1911 * be read without any locks. 1912 */ 1913 if (READ_ONCE(sq->running) == 0) 1914 return; 1915 1916 /* don't put more packets into the SQ */ 1917 WRITE_ONCE(sq->running, 0); 1918 1919 /* serialize access to DMA rings */ 1920 mtx_lock(&sq->lock); 1921 1922 /* teardown event factor timer, if any */ 1923 sq->cev_next_state = MLX5E_CEV_STATE_HOLD_NOPS; 1924 callout_stop(&sq->cev_callout); 1925 1926 /* send dummy NOPs in order to flush the transmit ring */ 1927 mlx5e_sq_send_nops_locked(sq, 1); 1928 mtx_unlock(&sq->lock); 1929 1930 /* wait till SQ is empty or link is down */ 1931 mtx_lock(&sq->lock); 1932 while (sq->cc != sq->pc && 1933 (sq->priv->media_status_last & IFM_ACTIVE) != 0 && 1934 mdev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR && 1935 pci_channel_offline(mdev->pdev) == 0) { 1936 mtx_unlock(&sq->lock); 1937 msleep(1); 1938 sq->cq.mcq.comp(&sq->cq.mcq, NULL); 1939 mtx_lock(&sq->lock); 1940 } 1941 mtx_unlock(&sq->lock); 1942 1943 /* error out remaining requests */ 1944 error = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR); 1945 if (error != 0) { 1946 mlx5_en_err(sq->ifp, 1947 "mlx5e_modify_sq() from RDY to ERR failed: %d\n", error); 1948 } 1949 1950 /* wait till SQ is empty */ 1951 mtx_lock(&sq->lock); 1952 while (sq->cc != sq->pc && 1953 mdev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR && 1954 pci_channel_offline(mdev->pdev) == 0) { 1955 mtx_unlock(&sq->lock); 1956 msleep(1); 1957 sq->cq.mcq.comp(&sq->cq.mcq, NULL); 1958 mtx_lock(&sq->lock); 1959 } 1960 mtx_unlock(&sq->lock); 1961 } 1962 1963 static void 1964 mlx5e_close_sq_wait(struct mlx5e_sq *sq) 1965 { 1966 1967 mlx5e_drain_sq(sq); 1968 mlx5e_disable_sq(sq); 1969 mlx5e_destroy_sq(sq); 1970 } 1971 1972 static int 1973 mlx5e_create_cq(struct mlx5e_priv *priv, 1974 struct mlx5e_cq_param *param, 1975 struct mlx5e_cq *cq, 1976 mlx5e_cq_comp_t *comp, 1977 int eq_ix) 1978 { 1979 struct mlx5_core_dev *mdev = priv->mdev; 1980 struct mlx5_core_cq *mcq = &cq->mcq; 1981 int eqn_not_used; 1982 int irqn; 1983 int err; 1984 u32 i; 1985 1986 err = mlx5_vector2eqn(mdev, eq_ix, &eqn_not_used, &irqn); 1987 if (err) 1988 return (err); 1989 1990 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, 1991 &cq->wq_ctrl); 1992 if (err) 1993 return (err); 1994 1995 mcq->cqe_sz = 64; 1996 mcq->set_ci_db = cq->wq_ctrl.db.db; 1997 mcq->arm_db = cq->wq_ctrl.db.db + 1; 1998 *mcq->set_ci_db = 0; 1999 *mcq->arm_db = 0; 2000 mcq->vector = eq_ix; 2001 mcq->comp = comp; 2002 mcq->event = mlx5e_cq_error_event; 2003 mcq->irqn = irqn; 2004 2005 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { 2006 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); 2007 2008 cqe->op_own = 0xf1; 2009 } 2010 2011 cq->priv = priv; 2012 2013 return (0); 2014 } 2015 2016 static void 2017 mlx5e_destroy_cq(struct mlx5e_cq *cq) 2018 { 2019 mlx5_wq_destroy(&cq->wq_ctrl); 2020 } 2021 2022 static int 2023 mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param, int eq_ix) 2024 { 2025 struct mlx5_core_cq *mcq = &cq->mcq; 2026 u32 out[MLX5_ST_SZ_DW(create_cq_out)]; 2027 void *in; 2028 void *cqc; 2029 int inlen; 2030 int irqn_not_used; 2031 int eqn; 2032 int err; 2033 2034 inlen = MLX5_ST_SZ_BYTES(create_cq_in) + 2035 sizeof(u64) * cq->wq_ctrl.buf.npages; 2036 in = mlx5_vzalloc(inlen); 2037 if (in == NULL) 2038 return (-ENOMEM); 2039 2040 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); 2041 2042 memcpy(cqc, param->cqc, sizeof(param->cqc)); 2043 2044 mlx5_fill_page_array(&cq->wq_ctrl.buf, 2045 (__be64 *) MLX5_ADDR_OF(create_cq_in, in, pas)); 2046 2047 mlx5_vector2eqn(cq->priv->mdev, eq_ix, &eqn, &irqn_not_used); 2048 2049 MLX5_SET(cqc, cqc, c_eqn, eqn); 2050 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - 2051 MLX5_ADAPTER_PAGE_SHIFT); 2052 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); 2053 2054 err = mlx5_core_create_cq(cq->priv->mdev, mcq, in, inlen, out, sizeof(out)); 2055 2056 kvfree(in); 2057 2058 if (err) 2059 return (err); 2060 2061 mlx5e_cq_arm(cq, MLX5_GET_DOORBELL_LOCK(&cq->priv->doorbell_lock)); 2062 2063 return (0); 2064 } 2065 2066 static void 2067 mlx5e_disable_cq(struct mlx5e_cq *cq) 2068 { 2069 2070 mlx5_core_destroy_cq(cq->priv->mdev, &cq->mcq); 2071 } 2072 2073 int 2074 mlx5e_open_cq(struct mlx5e_priv *priv, 2075 struct mlx5e_cq_param *param, 2076 struct mlx5e_cq *cq, 2077 mlx5e_cq_comp_t *comp, 2078 int eq_ix) 2079 { 2080 int err; 2081 2082 err = mlx5e_create_cq(priv, param, cq, comp, eq_ix); 2083 if (err) 2084 return (err); 2085 2086 err = mlx5e_enable_cq(cq, param, eq_ix); 2087 if (err) 2088 goto err_destroy_cq; 2089 2090 return (0); 2091 2092 err_destroy_cq: 2093 mlx5e_destroy_cq(cq); 2094 2095 return (err); 2096 } 2097 2098 void 2099 mlx5e_close_cq(struct mlx5e_cq *cq) 2100 { 2101 mlx5e_disable_cq(cq); 2102 mlx5e_destroy_cq(cq); 2103 } 2104 2105 static int 2106 mlx5e_open_tx_cqs(struct mlx5e_channel *c, 2107 struct mlx5e_channel_param *cparam) 2108 { 2109 int err; 2110 int tc; 2111 2112 for (tc = 0; tc < c->priv->num_tc; tc++) { 2113 /* open completion queue */ 2114 err = mlx5e_open_cq(c->priv, &cparam->tx_cq, &c->sq[tc].cq, 2115 &mlx5e_tx_cq_comp, c->ix); 2116 if (err) 2117 goto err_close_tx_cqs; 2118 } 2119 return (0); 2120 2121 err_close_tx_cqs: 2122 for (tc--; tc >= 0; tc--) 2123 mlx5e_close_cq(&c->sq[tc].cq); 2124 2125 return (err); 2126 } 2127 2128 static void 2129 mlx5e_close_tx_cqs(struct mlx5e_channel *c) 2130 { 2131 int tc; 2132 2133 for (tc = 0; tc < c->priv->num_tc; tc++) 2134 mlx5e_close_cq(&c->sq[tc].cq); 2135 } 2136 2137 static int 2138 mlx5e_open_sqs(struct mlx5e_channel *c, 2139 struct mlx5e_channel_param *cparam) 2140 { 2141 int err; 2142 int tc; 2143 2144 for (tc = 0; tc < c->priv->num_tc; tc++) { 2145 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]); 2146 if (err) 2147 goto err_close_sqs; 2148 } 2149 2150 return (0); 2151 2152 err_close_sqs: 2153 for (tc--; tc >= 0; tc--) 2154 mlx5e_close_sq_wait(&c->sq[tc]); 2155 2156 return (err); 2157 } 2158 2159 static void 2160 mlx5e_close_sqs_wait(struct mlx5e_channel *c) 2161 { 2162 int tc; 2163 2164 for (tc = 0; tc < c->priv->num_tc; tc++) 2165 mlx5e_close_sq_wait(&c->sq[tc]); 2166 } 2167 2168 static void 2169 mlx5e_chan_static_init(struct mlx5e_priv *priv, struct mlx5e_channel *c, int ix) 2170 { 2171 int tc; 2172 2173 /* setup priv and channel number */ 2174 c->priv = priv; 2175 c->ix = ix; 2176 2177 /* setup send tag */ 2178 m_snd_tag_init(&c->tag, c->priv->ifp, &mlx5e_ul_snd_tag_sw); 2179 2180 init_completion(&c->completion); 2181 2182 mtx_init(&c->rq.mtx, "mlx5rx", MTX_NETWORK_LOCK, MTX_DEF); 2183 2184 callout_init_mtx(&c->rq.watchdog, &c->rq.mtx, 0); 2185 2186 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) { 2187 struct mlx5e_sq *sq = c->sq + tc; 2188 2189 mtx_init(&sq->lock, "mlx5tx", 2190 MTX_NETWORK_LOCK " TX", MTX_DEF); 2191 mtx_init(&sq->comp_lock, "mlx5comp", 2192 MTX_NETWORK_LOCK " TX", MTX_DEF); 2193 2194 callout_init_mtx(&sq->cev_callout, &sq->lock, 0); 2195 } 2196 2197 mlx5e_iq_static_init(&c->iq); 2198 } 2199 2200 static void 2201 mlx5e_chan_wait_for_completion(struct mlx5e_channel *c) 2202 { 2203 2204 m_snd_tag_rele(&c->tag); 2205 wait_for_completion(&c->completion); 2206 } 2207 2208 static void 2209 mlx5e_priv_wait_for_completion(struct mlx5e_priv *priv, const uint32_t channels) 2210 { 2211 uint32_t x; 2212 2213 for (x = 0; x != channels; x++) 2214 mlx5e_chan_wait_for_completion(&priv->channel[x]); 2215 } 2216 2217 static void 2218 mlx5e_chan_static_destroy(struct mlx5e_channel *c) 2219 { 2220 int tc; 2221 2222 callout_drain(&c->rq.watchdog); 2223 2224 mtx_destroy(&c->rq.mtx); 2225 2226 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) { 2227 callout_drain(&c->sq[tc].cev_callout); 2228 mtx_destroy(&c->sq[tc].lock); 2229 mtx_destroy(&c->sq[tc].comp_lock); 2230 } 2231 2232 mlx5e_iq_static_destroy(&c->iq); 2233 } 2234 2235 static int 2236 mlx5e_open_channel(struct mlx5e_priv *priv, 2237 struct mlx5e_channel_param *cparam, 2238 struct mlx5e_channel *c) 2239 { 2240 struct epoch_tracker et; 2241 int i, err; 2242 2243 /* zero non-persistent data */ 2244 MLX5E_ZERO(&c->rq, mlx5e_rq_zero_start); 2245 for (i = 0; i != priv->num_tc; i++) 2246 MLX5E_ZERO(&c->sq[i], mlx5e_sq_zero_start); 2247 MLX5E_ZERO(&c->iq, mlx5e_iq_zero_start); 2248 2249 /* open transmit completion queue */ 2250 err = mlx5e_open_tx_cqs(c, cparam); 2251 if (err) 2252 goto err_free; 2253 2254 /* open receive completion queue */ 2255 err = mlx5e_open_cq(c->priv, &cparam->rx_cq, &c->rq.cq, 2256 &mlx5e_rx_cq_comp, c->ix); 2257 if (err) 2258 goto err_close_tx_cqs; 2259 2260 err = mlx5e_open_sqs(c, cparam); 2261 if (err) 2262 goto err_close_rx_cq; 2263 2264 err = mlx5e_iq_open(c, &cparam->sq, &cparam->tx_cq, &c->iq); 2265 if (err) 2266 goto err_close_sqs; 2267 2268 err = mlx5e_open_rq(c, &cparam->rq, &c->rq); 2269 if (err) 2270 goto err_close_iq; 2271 2272 /* poll receive queue initially */ 2273 NET_EPOCH_ENTER(et); 2274 c->rq.cq.mcq.comp(&c->rq.cq.mcq, NULL); 2275 NET_EPOCH_EXIT(et); 2276 2277 return (0); 2278 2279 err_close_iq: 2280 mlx5e_iq_close(&c->iq); 2281 2282 err_close_sqs: 2283 mlx5e_close_sqs_wait(c); 2284 2285 err_close_rx_cq: 2286 mlx5e_close_cq(&c->rq.cq); 2287 2288 err_close_tx_cqs: 2289 mlx5e_close_tx_cqs(c); 2290 2291 err_free: 2292 return (err); 2293 } 2294 2295 static void 2296 mlx5e_close_channel(struct mlx5e_channel *c) 2297 { 2298 mlx5e_close_rq(&c->rq); 2299 } 2300 2301 static void 2302 mlx5e_close_channel_wait(struct mlx5e_channel *c) 2303 { 2304 mlx5e_close_rq_wait(&c->rq); 2305 mlx5e_iq_close(&c->iq); 2306 mlx5e_close_sqs_wait(c); 2307 mlx5e_close_tx_cqs(c); 2308 } 2309 2310 static int 2311 mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs) 2312 { 2313 u32 r, n; 2314 2315 r = priv->params.hw_lro_en ? priv->params.lro_wqe_sz : 2316 MLX5E_SW2MB_MTU(if_getmtu(priv->ifp)); 2317 if (r > MJUM16BYTES) 2318 return (-ENOMEM); 2319 2320 if (r > MJUM9BYTES) 2321 r = MJUM16BYTES; 2322 else if (r > MJUMPAGESIZE) 2323 r = MJUM9BYTES; 2324 else if (r > MCLBYTES) 2325 r = MJUMPAGESIZE; 2326 else 2327 r = MCLBYTES; 2328 2329 /* 2330 * n + 1 must be a power of two, because stride size must be. 2331 * Stride size is 16 * (n + 1), as the first segment is 2332 * control. 2333 */ 2334 for (n = howmany(r, MLX5E_MAX_RX_BYTES); !powerof2(n + 1); n++) 2335 ; 2336 2337 if (n > MLX5E_MAX_BUSDMA_RX_SEGS) 2338 return (-ENOMEM); 2339 2340 *wqe_sz = r; 2341 *nsegs = n; 2342 return (0); 2343 } 2344 2345 static void 2346 mlx5e_build_rq_param(struct mlx5e_priv *priv, 2347 struct mlx5e_rq_param *param) 2348 { 2349 void *rqc = param->rqc; 2350 void *wq = MLX5_ADDR_OF(rqc, rqc, wq); 2351 u32 wqe_sz, nsegs; 2352 2353 mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs); 2354 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); 2355 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); 2356 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) + 2357 nsegs * sizeof(struct mlx5_wqe_data_seg))); 2358 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size); 2359 MLX5_SET(wq, wq, pd, priv->pdn); 2360 2361 param->wq.linear = 1; 2362 } 2363 2364 static void 2365 mlx5e_build_sq_param(struct mlx5e_priv *priv, 2366 struct mlx5e_sq_param *param) 2367 { 2368 void *sqc = param->sqc; 2369 void *wq = MLX5_ADDR_OF(sqc, sqc, wq); 2370 2371 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size); 2372 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); 2373 MLX5_SET(wq, wq, pd, priv->pdn); 2374 2375 param->wq.linear = 1; 2376 } 2377 2378 static void 2379 mlx5e_build_common_cq_param(struct mlx5e_priv *priv, 2380 struct mlx5e_cq_param *param) 2381 { 2382 void *cqc = param->cqc; 2383 2384 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index); 2385 } 2386 2387 static void 2388 mlx5e_get_default_profile(struct mlx5e_priv *priv, int mode, struct net_dim_cq_moder *ptr) 2389 { 2390 2391 *ptr = net_dim_get_profile(mode, MLX5E_DIM_DEFAULT_PROFILE); 2392 2393 /* apply LRO restrictions */ 2394 if (priv->params.hw_lro_en && 2395 ptr->pkts > MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO) { 2396 ptr->pkts = MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO; 2397 } 2398 } 2399 2400 static void 2401 mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, 2402 struct mlx5e_cq_param *param) 2403 { 2404 struct net_dim_cq_moder curr; 2405 void *cqc = param->cqc; 2406 2407 /* 2408 * We use MLX5_CQE_FORMAT_HASH because the RX hash mini CQE 2409 * format is more beneficial for FreeBSD use case. 2410 * 2411 * Adding support for MLX5_CQE_FORMAT_CSUM will require changes 2412 * in mlx5e_decompress_cqe. 2413 */ 2414 if (priv->params.cqe_zipping_en) { 2415 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_HASH); 2416 MLX5_SET(cqc, cqc, cqe_compression_en, 1); 2417 } 2418 2419 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size); 2420 2421 switch (priv->params.rx_cq_moderation_mode) { 2422 case 0: 2423 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec); 2424 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts); 2425 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2426 break; 2427 case 1: 2428 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec); 2429 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts); 2430 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2431 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2432 else 2433 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2434 break; 2435 case 2: 2436 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE, &curr); 2437 MLX5_SET(cqc, cqc, cq_period, curr.usec); 2438 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts); 2439 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2440 break; 2441 case 3: 2442 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE, &curr); 2443 MLX5_SET(cqc, cqc, cq_period, curr.usec); 2444 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts); 2445 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2446 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2447 else 2448 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2449 break; 2450 default: 2451 break; 2452 } 2453 2454 mlx5e_dim_build_cq_param(priv, param); 2455 2456 mlx5e_build_common_cq_param(priv, param); 2457 } 2458 2459 static void 2460 mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, 2461 struct mlx5e_cq_param *param) 2462 { 2463 void *cqc = param->cqc; 2464 2465 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size); 2466 MLX5_SET(cqc, cqc, cq_period, priv->params.tx_cq_moderation_usec); 2467 MLX5_SET(cqc, cqc, cq_max_count, priv->params.tx_cq_moderation_pkts); 2468 2469 switch (priv->params.tx_cq_moderation_mode) { 2470 case 0: 2471 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2472 break; 2473 default: 2474 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2475 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2476 else 2477 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2478 break; 2479 } 2480 2481 mlx5e_build_common_cq_param(priv, param); 2482 } 2483 2484 static void 2485 mlx5e_build_channel_param(struct mlx5e_priv *priv, 2486 struct mlx5e_channel_param *cparam) 2487 { 2488 memset(cparam, 0, sizeof(*cparam)); 2489 2490 mlx5e_build_rq_param(priv, &cparam->rq); 2491 mlx5e_build_sq_param(priv, &cparam->sq); 2492 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq); 2493 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq); 2494 } 2495 2496 static int 2497 mlx5e_open_channels(struct mlx5e_priv *priv) 2498 { 2499 struct mlx5e_channel_param *cparam; 2500 int err; 2501 int i; 2502 2503 cparam = malloc(sizeof(*cparam), M_MLX5EN, M_WAITOK); 2504 2505 mlx5e_build_channel_param(priv, cparam); 2506 for (i = 0; i < priv->params.num_channels; i++) { 2507 err = mlx5e_open_channel(priv, cparam, &priv->channel[i]); 2508 if (err) 2509 goto err_close_channels; 2510 2511 /* Bind interrupt vectors, if any. */ 2512 if (priv->params_ethtool.irq_cpu_base > -1) { 2513 cpuset_t cpuset; 2514 int cpu; 2515 int irq; 2516 int eqn; 2517 int nirq; 2518 2519 err = mlx5_vector2eqn(priv->mdev, i, 2520 &eqn, &nirq); 2521 2522 /* error here is non-fatal */ 2523 if (err != 0) 2524 continue; 2525 2526 irq = priv->mdev->priv.msix_arr[nirq].vector; 2527 cpu = (unsigned)(priv->params_ethtool.irq_cpu_base + 2528 i * priv->params_ethtool.irq_cpu_stride) % (unsigned)mp_ncpus; 2529 2530 CPU_ZERO(&cpuset); 2531 CPU_SET(cpu, &cpuset); 2532 intr_setaffinity(irq, CPU_WHICH_INTRHANDLER, &cpuset); 2533 } 2534 } 2535 free(cparam, M_MLX5EN); 2536 return (0); 2537 2538 err_close_channels: 2539 while (i--) { 2540 mlx5e_close_channel(&priv->channel[i]); 2541 mlx5e_close_channel_wait(&priv->channel[i]); 2542 } 2543 free(cparam, M_MLX5EN); 2544 return (err); 2545 } 2546 2547 static void 2548 mlx5e_close_channels(struct mlx5e_priv *priv) 2549 { 2550 int i; 2551 2552 for (i = 0; i < priv->params.num_channels; i++) 2553 mlx5e_close_channel(&priv->channel[i]); 2554 for (i = 0; i < priv->params.num_channels; i++) 2555 mlx5e_close_channel_wait(&priv->channel[i]); 2556 } 2557 2558 static int 2559 mlx5e_refresh_sq_params(struct mlx5e_priv *priv, struct mlx5e_sq *sq) 2560 { 2561 2562 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) { 2563 uint8_t cq_mode; 2564 2565 switch (priv->params.tx_cq_moderation_mode) { 2566 case 0: 2567 case 2: 2568 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE; 2569 break; 2570 default: 2571 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE; 2572 break; 2573 } 2574 2575 return (mlx5_core_modify_cq_moderation_mode(priv->mdev, &sq->cq.mcq, 2576 priv->params.tx_cq_moderation_usec, 2577 priv->params.tx_cq_moderation_pkts, 2578 cq_mode)); 2579 } 2580 2581 return (mlx5_core_modify_cq_moderation(priv->mdev, &sq->cq.mcq, 2582 priv->params.tx_cq_moderation_usec, 2583 priv->params.tx_cq_moderation_pkts)); 2584 } 2585 2586 static int 2587 mlx5e_refresh_rq_params(struct mlx5e_priv *priv, struct mlx5e_rq *rq) 2588 { 2589 2590 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) { 2591 uint8_t cq_mode; 2592 uint8_t dim_mode; 2593 int retval; 2594 2595 switch (priv->params.rx_cq_moderation_mode) { 2596 case 0: 2597 case 2: 2598 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE; 2599 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE; 2600 break; 2601 default: 2602 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE; 2603 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE; 2604 break; 2605 } 2606 2607 /* tear down dynamic interrupt moderation */ 2608 mtx_lock(&rq->mtx); 2609 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 2610 mtx_unlock(&rq->mtx); 2611 2612 /* wait for dynamic interrupt moderation work task, if any */ 2613 cancel_work_sync(&rq->dim.work); 2614 2615 if (priv->params.rx_cq_moderation_mode >= 2) { 2616 struct net_dim_cq_moder curr; 2617 2618 mlx5e_get_default_profile(priv, dim_mode, &curr); 2619 2620 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq, 2621 curr.usec, curr.pkts, cq_mode); 2622 2623 /* set dynamic interrupt moderation mode and zero defaults */ 2624 mtx_lock(&rq->mtx); 2625 rq->dim.mode = dim_mode; 2626 rq->dim.state = 0; 2627 rq->dim.profile_ix = MLX5E_DIM_DEFAULT_PROFILE; 2628 mtx_unlock(&rq->mtx); 2629 } else { 2630 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq, 2631 priv->params.rx_cq_moderation_usec, 2632 priv->params.rx_cq_moderation_pkts, 2633 cq_mode); 2634 } 2635 return (retval); 2636 } 2637 2638 return (mlx5_core_modify_cq_moderation(priv->mdev, &rq->cq.mcq, 2639 priv->params.rx_cq_moderation_usec, 2640 priv->params.rx_cq_moderation_pkts)); 2641 } 2642 2643 static int 2644 mlx5e_refresh_channel_params_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c) 2645 { 2646 int err; 2647 int i; 2648 2649 err = mlx5e_refresh_rq_params(priv, &c->rq); 2650 if (err) 2651 goto done; 2652 2653 for (i = 0; i != priv->num_tc; i++) { 2654 err = mlx5e_refresh_sq_params(priv, &c->sq[i]); 2655 if (err) 2656 goto done; 2657 } 2658 done: 2659 return (err); 2660 } 2661 2662 int 2663 mlx5e_refresh_channel_params(struct mlx5e_priv *priv) 2664 { 2665 int i; 2666 2667 /* check if channels are closed */ 2668 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 2669 return (EINVAL); 2670 2671 for (i = 0; i < priv->params.num_channels; i++) { 2672 int err; 2673 2674 err = mlx5e_refresh_channel_params_sub(priv, &priv->channel[i]); 2675 if (err) 2676 return (err); 2677 } 2678 return (0); 2679 } 2680 2681 static int 2682 mlx5e_open_tis(struct mlx5e_priv *priv, int tc) 2683 { 2684 struct mlx5_core_dev *mdev = priv->mdev; 2685 u32 in[MLX5_ST_SZ_DW(create_tis_in)]; 2686 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); 2687 2688 memset(in, 0, sizeof(in)); 2689 2690 MLX5_SET(tisc, tisc, prio, tc); 2691 MLX5_SET(tisc, tisc, transport_domain, priv->tdn); 2692 2693 return (mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc])); 2694 } 2695 2696 static void 2697 mlx5e_close_tis(struct mlx5e_priv *priv, int tc) 2698 { 2699 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc], 0); 2700 } 2701 2702 static int 2703 mlx5e_open_tises(struct mlx5e_priv *priv) 2704 { 2705 int num_tc = priv->num_tc; 2706 int err; 2707 int tc; 2708 2709 for (tc = 0; tc < num_tc; tc++) { 2710 err = mlx5e_open_tis(priv, tc); 2711 if (err) 2712 goto err_close_tises; 2713 } 2714 2715 return (0); 2716 2717 err_close_tises: 2718 for (tc--; tc >= 0; tc--) 2719 mlx5e_close_tis(priv, tc); 2720 2721 return (err); 2722 } 2723 2724 static void 2725 mlx5e_close_tises(struct mlx5e_priv *priv) 2726 { 2727 int num_tc = priv->num_tc; 2728 int tc; 2729 2730 for (tc = 0; tc < num_tc; tc++) 2731 mlx5e_close_tis(priv, tc); 2732 } 2733 2734 static int 2735 mlx5e_open_default_rqt(struct mlx5e_priv *priv, u32 *prqtn, int sz) 2736 { 2737 u32 *in; 2738 void *rqtc; 2739 int inlen; 2740 int err; 2741 int i; 2742 2743 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; 2744 in = mlx5_vzalloc(inlen); 2745 if (in == NULL) 2746 return (-ENOMEM); 2747 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); 2748 2749 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2750 MLX5_SET(rqtc, rqtc, rqt_max_size, sz); 2751 2752 for (i = 0; i != sz; i++) 2753 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn); 2754 2755 err = mlx5_core_create_rqt(priv->mdev, in, inlen, prqtn); 2756 kvfree(in); 2757 2758 return (err); 2759 } 2760 2761 static int 2762 mlx5e_open_rqts(struct mlx5e_priv *priv) 2763 { 2764 int err; 2765 int i; 2766 2767 err = mlx5e_open_default_rqt(priv, &priv->rqtn, 2768 1 << priv->params.rx_hash_log_tbl_sz); 2769 if (err) 2770 goto err_default; 2771 2772 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2773 err = mlx5e_open_default_rqt(priv, &priv->channel[i].rqtn, 1); 2774 if (err) 2775 goto err_channel; 2776 } 2777 return (0); 2778 2779 err_channel: 2780 while (i--) 2781 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0); 2782 2783 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0); 2784 2785 err_default: 2786 return (err); 2787 } 2788 2789 static void 2790 mlx5e_close_rqts(struct mlx5e_priv *priv) 2791 { 2792 int i; 2793 2794 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) 2795 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0); 2796 2797 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0); 2798 } 2799 2800 static int 2801 mlx5e_activate_rqt(struct mlx5e_priv *priv) 2802 { 2803 u32 *in; 2804 void *rqtc; 2805 int inlen; 2806 int err; 2807 int sz; 2808 int i; 2809 2810 sz = 1 << priv->params.rx_hash_log_tbl_sz; 2811 2812 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; 2813 in = mlx5_vzalloc(inlen); 2814 if (in == NULL) 2815 return (-ENOMEM); 2816 2817 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); 2818 2819 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2820 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); 2821 2822 for (i = 0; i != sz; i++) { 2823 int ix; 2824 #ifdef RSS 2825 ix = rss_get_indirection_to_bucket(i); 2826 #else 2827 ix = i; 2828 #endif 2829 /* ensure we don't overflow */ 2830 ix %= priv->params.num_channels; 2831 2832 /* apply receive side scaling stride, if any */ 2833 ix -= ix % (int)priv->params.channels_rsss; 2834 2835 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix].rq.rqn); 2836 } 2837 2838 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen); 2839 if (err) 2840 goto err_modify; 2841 2842 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32); 2843 2844 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1); 2845 2846 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2847 int ix; 2848 #ifdef RSS 2849 ix = rss_get_indirection_to_bucket(i); 2850 #else 2851 ix = i; 2852 #endif 2853 /* ensure we don't overflow */ 2854 ix %= priv->params.num_channels; 2855 2856 /* apply receive side scaling stride, if any */ 2857 ix -= ix % (int)priv->params.channels_rsss; 2858 2859 MLX5_SET(rqtc, rqtc, rq_num[0], priv->channel[ix].rq.rqn); 2860 2861 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen); 2862 if (err) 2863 goto err_modify; 2864 } 2865 2866 err_modify: 2867 kvfree(in); 2868 return (err); 2869 } 2870 2871 static int 2872 mlx5e_deactivate_rqt(struct mlx5e_priv *priv) 2873 { 2874 u32 *in; 2875 void *rqtc; 2876 int inlen; 2877 int err; 2878 int sz; 2879 int i; 2880 2881 sz = 1 << priv->params.rx_hash_log_tbl_sz; 2882 2883 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; 2884 in = mlx5_vzalloc(inlen); 2885 if (in == NULL) 2886 return (-ENOMEM); 2887 2888 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); 2889 2890 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2891 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); 2892 2893 for (i = 0; i != sz; i++) 2894 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn); 2895 2896 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen); 2897 if (err) 2898 goto err_modify; 2899 2900 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32); 2901 2902 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1); 2903 2904 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2905 MLX5_SET(rqtc, rqtc, rq_num[0], priv->drop_rq.rqn); 2906 2907 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen); 2908 if (err) 2909 goto err_modify; 2910 } 2911 2912 err_modify: 2913 kvfree(in); 2914 return (err); 2915 } 2916 2917 #define MLX5E_RSS_KEY_SIZE (10 * 4) /* bytes */ 2918 2919 static void 2920 mlx5e_get_rss_key(void *key_ptr) 2921 { 2922 #ifdef RSS 2923 rss_getkey(key_ptr); 2924 #else 2925 static const u32 rsskey[] = { 2926 cpu_to_be32(0xD181C62C), 2927 cpu_to_be32(0xF7F4DB5B), 2928 cpu_to_be32(0x1983A2FC), 2929 cpu_to_be32(0x943E1ADB), 2930 cpu_to_be32(0xD9389E6B), 2931 cpu_to_be32(0xD1039C2C), 2932 cpu_to_be32(0xA74499AD), 2933 cpu_to_be32(0x593D56D9), 2934 cpu_to_be32(0xF3253C06), 2935 cpu_to_be32(0x2ADC1FFC), 2936 }; 2937 CTASSERT(sizeof(rsskey) == MLX5E_RSS_KEY_SIZE); 2938 memcpy(key_ptr, rsskey, MLX5E_RSS_KEY_SIZE); 2939 #endif 2940 } 2941 2942 static void 2943 mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 * tirc, int tt, bool inner_vxlan) 2944 { 2945 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); 2946 void *hfsi = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner); 2947 void *hfs = inner_vxlan ? hfsi : hfso; 2948 __be32 *hkey; 2949 2950 MLX5_SET(tirc, tirc, transport_domain, priv->tdn); 2951 2952 #define ROUGH_MAX_L2_L3_HDR_SZ 256 2953 2954 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2955 MLX5_HASH_FIELD_SEL_DST_IP) 2956 2957 #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2958 MLX5_HASH_FIELD_SEL_DST_IP |\ 2959 MLX5_HASH_FIELD_SEL_L4_SPORT |\ 2960 MLX5_HASH_FIELD_SEL_L4_DPORT) 2961 2962 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2963 MLX5_HASH_FIELD_SEL_DST_IP |\ 2964 MLX5_HASH_FIELD_SEL_IPSEC_SPI) 2965 2966 if (priv->params.hw_lro_en) { 2967 MLX5_SET(tirc, tirc, lro_enable_mask, 2968 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | 2969 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); 2970 MLX5_SET(tirc, tirc, lro_max_msg_sz, 2971 (priv->params.lro_wqe_sz - 2972 ROUGH_MAX_L2_L3_HDR_SZ) >> 8); 2973 /* TODO: add the option to choose timer value dynamically */ 2974 MLX5_SET(tirc, tirc, lro_timeout_period_usecs, 2975 MLX5_CAP_ETH(priv->mdev, 2976 lro_timer_supported_periods[2])); 2977 } 2978 2979 if (inner_vxlan) 2980 MLX5_SET(tirc, tirc, tunneled_offload_en, 1); 2981 2982 /* 2983 * All packets must go through the indirection table, RQT, 2984 * because it is not possible to modify the RQN of the TIR 2985 * for direct dispatchment after it is created, typically 2986 * when the link goes up and down. 2987 */ 2988 MLX5_SET(tirc, tirc, disp_type, 2989 MLX5_TIRC_DISP_TYPE_INDIRECT); 2990 MLX5_SET(tirc, tirc, indirect_table, 2991 priv->rqtn); 2992 MLX5_SET(tirc, tirc, rx_hash_fn, 2993 MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ); 2994 hkey = (__be32 *) MLX5_ADDR_OF(tirc, tirc, rx_hash_toeplitz_key); 2995 2996 CTASSERT(MLX5_FLD_SZ_BYTES(tirc, rx_hash_toeplitz_key) >= 2997 MLX5E_RSS_KEY_SIZE); 2998 #ifdef RSS 2999 /* 3000 * The FreeBSD RSS implementation does currently not 3001 * support symmetric Toeplitz hashes: 3002 */ 3003 MLX5_SET(tirc, tirc, rx_hash_symmetric, 0); 3004 #else 3005 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); 3006 #endif 3007 mlx5e_get_rss_key(hkey); 3008 3009 switch (tt) { 3010 case MLX5E_TT_IPV4_TCP: 3011 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3012 MLX5_L3_PROT_TYPE_IPV4); 3013 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3014 MLX5_L4_PROT_TYPE_TCP); 3015 #ifdef RSS 3016 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV4)) { 3017 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3018 MLX5_HASH_IP); 3019 } else 3020 #endif 3021 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3022 MLX5_HASH_ALL); 3023 break; 3024 3025 case MLX5E_TT_IPV6_TCP: 3026 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3027 MLX5_L3_PROT_TYPE_IPV6); 3028 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3029 MLX5_L4_PROT_TYPE_TCP); 3030 #ifdef RSS 3031 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV6)) { 3032 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3033 MLX5_HASH_IP); 3034 } else 3035 #endif 3036 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3037 MLX5_HASH_ALL); 3038 break; 3039 3040 case MLX5E_TT_IPV4_UDP: 3041 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3042 MLX5_L3_PROT_TYPE_IPV4); 3043 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3044 MLX5_L4_PROT_TYPE_UDP); 3045 #ifdef RSS 3046 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV4)) { 3047 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3048 MLX5_HASH_IP); 3049 } else 3050 #endif 3051 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3052 MLX5_HASH_ALL); 3053 break; 3054 3055 case MLX5E_TT_IPV6_UDP: 3056 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3057 MLX5_L3_PROT_TYPE_IPV6); 3058 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3059 MLX5_L4_PROT_TYPE_UDP); 3060 #ifdef RSS 3061 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV6)) { 3062 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3063 MLX5_HASH_IP); 3064 } else 3065 #endif 3066 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3067 MLX5_HASH_ALL); 3068 break; 3069 3070 case MLX5E_TT_IPV4_IPSEC_AH: 3071 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3072 MLX5_L3_PROT_TYPE_IPV4); 3073 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3074 MLX5_HASH_IP_IPSEC_SPI); 3075 break; 3076 3077 case MLX5E_TT_IPV6_IPSEC_AH: 3078 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3079 MLX5_L3_PROT_TYPE_IPV6); 3080 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3081 MLX5_HASH_IP_IPSEC_SPI); 3082 break; 3083 3084 case MLX5E_TT_IPV4_IPSEC_ESP: 3085 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3086 MLX5_L3_PROT_TYPE_IPV4); 3087 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3088 MLX5_HASH_IP_IPSEC_SPI); 3089 break; 3090 3091 case MLX5E_TT_IPV6_IPSEC_ESP: 3092 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3093 MLX5_L3_PROT_TYPE_IPV6); 3094 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3095 MLX5_HASH_IP_IPSEC_SPI); 3096 break; 3097 3098 case MLX5E_TT_IPV4: 3099 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3100 MLX5_L3_PROT_TYPE_IPV4); 3101 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3102 MLX5_HASH_IP); 3103 break; 3104 3105 case MLX5E_TT_IPV6: 3106 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3107 MLX5_L3_PROT_TYPE_IPV6); 3108 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3109 MLX5_HASH_IP); 3110 break; 3111 3112 default: 3113 break; 3114 } 3115 } 3116 3117 static int 3118 mlx5e_open_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan) 3119 { 3120 struct mlx5_core_dev *mdev = priv->mdev; 3121 u32 *in; 3122 void *tirc; 3123 int inlen; 3124 int err; 3125 3126 inlen = MLX5_ST_SZ_BYTES(create_tir_in); 3127 in = mlx5_vzalloc(inlen); 3128 if (in == NULL) 3129 return (-ENOMEM); 3130 tirc = MLX5_ADDR_OF(create_tir_in, in, tir_context); 3131 3132 mlx5e_build_tir_ctx(priv, tirc, tt, inner_vxlan); 3133 3134 err = mlx5_core_create_tir(mdev, in, inlen, inner_vxlan ? 3135 &priv->tirn_inner_vxlan[tt] : &priv->tirn[tt]); 3136 3137 kvfree(in); 3138 3139 return (err); 3140 } 3141 3142 static void 3143 mlx5e_close_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan) 3144 { 3145 mlx5_core_destroy_tir(priv->mdev, inner_vxlan ? 3146 priv->tirn_inner_vxlan[tt] : priv->tirn[tt], 0); 3147 } 3148 3149 static int 3150 mlx5e_open_tirs(struct mlx5e_priv *priv) 3151 { 3152 int err; 3153 int i; 3154 3155 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) { 3156 err = mlx5e_open_tir(priv, i / 2, (i % 2) ? true : false); 3157 if (err) 3158 goto err_close_tirs; 3159 } 3160 3161 return (0); 3162 3163 err_close_tirs: 3164 for (i--; i >= 0; i--) 3165 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false); 3166 3167 return (err); 3168 } 3169 3170 static void 3171 mlx5e_close_tirs(struct mlx5e_priv *priv) 3172 { 3173 int i; 3174 3175 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) 3176 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false); 3177 } 3178 3179 /* 3180 * SW MTU does not include headers, 3181 * HW MTU includes all headers and checksums. 3182 */ 3183 static int 3184 mlx5e_set_dev_port_mtu(if_t ifp, int sw_mtu) 3185 { 3186 struct mlx5e_priv *priv = if_getsoftc(ifp); 3187 struct mlx5_core_dev *mdev = priv->mdev; 3188 int hw_mtu; 3189 int err; 3190 3191 hw_mtu = MLX5E_SW2HW_MTU(sw_mtu); 3192 3193 err = mlx5_set_port_mtu(mdev, hw_mtu); 3194 if (err) { 3195 mlx5_en_err(ifp, "mlx5_set_port_mtu failed setting %d, err=%d\n", 3196 sw_mtu, err); 3197 return (err); 3198 } 3199 3200 /* Update vport context MTU */ 3201 err = mlx5_set_vport_mtu(mdev, hw_mtu); 3202 if (err) { 3203 mlx5_en_err(ifp, 3204 "Failed updating vport context with MTU size, err=%d\n", 3205 err); 3206 } 3207 3208 if_setmtu(ifp, sw_mtu); 3209 3210 err = mlx5_query_vport_mtu(mdev, &hw_mtu); 3211 if (err || !hw_mtu) { 3212 /* fallback to port oper mtu */ 3213 err = mlx5_query_port_oper_mtu(mdev, &hw_mtu); 3214 } 3215 if (err) { 3216 mlx5_en_err(ifp, 3217 "Query port MTU, after setting new MTU value, failed\n"); 3218 return (err); 3219 } else if (MLX5E_HW2SW_MTU(hw_mtu) < sw_mtu) { 3220 err = -E2BIG, 3221 mlx5_en_err(ifp, 3222 "Port MTU %d is smaller than ifp mtu %d\n", 3223 hw_mtu, sw_mtu); 3224 } else if (MLX5E_HW2SW_MTU(hw_mtu) > sw_mtu) { 3225 err = -EINVAL; 3226 mlx5_en_err(ifp, 3227 "Port MTU %d is bigger than ifp mtu %d\n", 3228 hw_mtu, sw_mtu); 3229 } 3230 priv->params_ethtool.hw_mtu = hw_mtu; 3231 3232 /* compute MSB */ 3233 while (hw_mtu & (hw_mtu - 1)) 3234 hw_mtu &= (hw_mtu - 1); 3235 priv->params_ethtool.hw_mtu_msb = hw_mtu; 3236 3237 return (err); 3238 } 3239 3240 int 3241 mlx5e_open_locked(if_t ifp) 3242 { 3243 struct mlx5e_priv *priv = if_getsoftc(ifp); 3244 int err; 3245 u16 set_id; 3246 3247 /* check if already opened */ 3248 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0) 3249 return (0); 3250 3251 #ifdef RSS 3252 if (rss_getnumbuckets() > priv->params.num_channels) { 3253 mlx5_en_info(ifp, 3254 "NOTE: There are more RSS buckets(%u) than channels(%u) available\n", 3255 rss_getnumbuckets(), priv->params.num_channels); 3256 } 3257 #endif 3258 err = mlx5e_open_tises(priv); 3259 if (err) { 3260 mlx5_en_err(ifp, "mlx5e_open_tises failed, %d\n", err); 3261 return (err); 3262 } 3263 err = mlx5_vport_alloc_q_counter(priv->mdev, 3264 MLX5_INTERFACE_PROTOCOL_ETH, &set_id); 3265 if (err) { 3266 mlx5_en_err(priv->ifp, 3267 "mlx5_vport_alloc_q_counter failed: %d\n", err); 3268 goto err_close_tises; 3269 } 3270 /* store counter set ID */ 3271 priv->counter_set_id = set_id; 3272 3273 err = mlx5e_open_channels(priv); 3274 if (err) { 3275 mlx5_en_err(ifp, 3276 "mlx5e_open_channels failed, %d\n", err); 3277 goto err_dalloc_q_counter; 3278 } 3279 err = mlx5e_activate_rqt(priv); 3280 if (err) { 3281 mlx5_en_err(ifp, "mlx5e_activate_rqt failed, %d\n", err); 3282 goto err_close_channels; 3283 } 3284 3285 set_bit(MLX5E_STATE_OPENED, &priv->state); 3286 3287 mlx5e_update_carrier(priv); 3288 3289 return (0); 3290 3291 err_close_channels: 3292 mlx5e_close_channels(priv); 3293 3294 err_dalloc_q_counter: 3295 mlx5_vport_dealloc_q_counter(priv->mdev, 3296 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id); 3297 3298 err_close_tises: 3299 mlx5e_close_tises(priv); 3300 3301 return (err); 3302 } 3303 3304 static void 3305 mlx5e_open(void *arg) 3306 { 3307 struct mlx5e_priv *priv = arg; 3308 3309 PRIV_LOCK(priv); 3310 if (mlx5_set_port_status(priv->mdev, MLX5_PORT_UP)) 3311 mlx5_en_err(priv->ifp, 3312 "Setting port status to up failed\n"); 3313 3314 mlx5e_open_locked(priv->ifp); 3315 if_setdrvflagbits(priv->ifp, IFF_DRV_RUNNING, 0); 3316 PRIV_UNLOCK(priv); 3317 } 3318 3319 int 3320 mlx5e_close_locked(if_t ifp) 3321 { 3322 struct mlx5e_priv *priv = if_getsoftc(ifp); 3323 3324 /* check if already closed */ 3325 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 3326 return (0); 3327 3328 clear_bit(MLX5E_STATE_OPENED, &priv->state); 3329 3330 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 3331 3332 mlx5e_deactivate_rqt(priv); 3333 mlx5e_close_channels(priv); 3334 mlx5_vport_dealloc_q_counter(priv->mdev, 3335 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id); 3336 mlx5e_close_tises(priv); 3337 3338 return (0); 3339 } 3340 3341 static uint64_t 3342 mlx5e_get_counter(if_t ifp, ift_counter cnt) 3343 { 3344 struct mlx5e_priv *priv = if_getsoftc(ifp); 3345 u64 retval; 3346 3347 /* PRIV_LOCK(priv); XXX not allowed */ 3348 switch (cnt) { 3349 case IFCOUNTER_IPACKETS: 3350 retval = priv->stats.vport.rx_packets; 3351 break; 3352 case IFCOUNTER_IERRORS: 3353 retval = priv->stats.pport.in_range_len_errors + 3354 priv->stats.pport.out_of_range_len + 3355 priv->stats.pport.too_long_errors + 3356 priv->stats.pport.check_seq_err + 3357 priv->stats.pport.alignment_err; 3358 break; 3359 case IFCOUNTER_IQDROPS: 3360 retval = priv->stats.vport.rx_out_of_buffer; 3361 break; 3362 case IFCOUNTER_OPACKETS: 3363 retval = priv->stats.vport.tx_packets; 3364 break; 3365 case IFCOUNTER_OERRORS: 3366 retval = priv->stats.port_stats_debug.out_discards; 3367 break; 3368 case IFCOUNTER_IBYTES: 3369 retval = priv->stats.vport.rx_bytes; 3370 break; 3371 case IFCOUNTER_OBYTES: 3372 retval = priv->stats.vport.tx_bytes; 3373 break; 3374 case IFCOUNTER_IMCASTS: 3375 retval = priv->stats.vport.rx_multicast_packets; 3376 break; 3377 case IFCOUNTER_OMCASTS: 3378 retval = priv->stats.vport.tx_multicast_packets; 3379 break; 3380 case IFCOUNTER_OQDROPS: 3381 retval = priv->stats.vport.tx_queue_dropped; 3382 break; 3383 case IFCOUNTER_COLLISIONS: 3384 retval = priv->stats.pport.collisions; 3385 break; 3386 default: 3387 retval = if_get_counter_default(ifp, cnt); 3388 break; 3389 } 3390 /* PRIV_UNLOCK(priv); XXX not allowed */ 3391 return (retval); 3392 } 3393 3394 static void 3395 mlx5e_set_rx_mode(if_t ifp) 3396 { 3397 struct mlx5e_priv *priv = if_getsoftc(ifp); 3398 3399 queue_work(priv->wq, &priv->set_rx_mode_work); 3400 } 3401 3402 static int 3403 mlx5e_ioctl(if_t ifp, u_long command, caddr_t data) 3404 { 3405 struct mlx5e_priv *priv; 3406 struct ifreq *ifr; 3407 struct ifdownreason *ifdr; 3408 struct ifi2creq i2c; 3409 struct ifrsskey *ifrk; 3410 struct ifrsshash *ifrh; 3411 struct siocsifcapnv_driver_data *drv_ioctl_data, drv_ioctl_data_d; 3412 int error = 0; 3413 int mask; 3414 int size_read = 0; 3415 int module_status; 3416 int module_num; 3417 int max_mtu; 3418 uint8_t read_addr; 3419 3420 priv = if_getsoftc(ifp); 3421 3422 /* check if detaching */ 3423 if (priv == NULL || priv->gone != 0) 3424 return (ENXIO); 3425 3426 switch (command) { 3427 case SIOCSIFMTU: 3428 ifr = (struct ifreq *)data; 3429 3430 PRIV_LOCK(priv); 3431 mlx5_query_port_max_mtu(priv->mdev, &max_mtu); 3432 3433 if (ifr->ifr_mtu >= MLX5E_MTU_MIN && 3434 ifr->ifr_mtu <= MIN(MLX5E_MTU_MAX, max_mtu)) { 3435 int was_opened; 3436 3437 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 3438 if (was_opened) 3439 mlx5e_close_locked(ifp); 3440 3441 /* set new MTU */ 3442 mlx5e_set_dev_port_mtu(ifp, ifr->ifr_mtu); 3443 3444 if (was_opened) 3445 mlx5e_open_locked(ifp); 3446 } else { 3447 error = EINVAL; 3448 mlx5_en_err(ifp, 3449 "Invalid MTU value. Min val: %d, Max val: %d\n", 3450 MLX5E_MTU_MIN, MIN(MLX5E_MTU_MAX, max_mtu)); 3451 } 3452 PRIV_UNLOCK(priv); 3453 break; 3454 case SIOCSIFFLAGS: 3455 if ((if_getflags(ifp) & IFF_UP) && 3456 (if_getdrvflags(ifp) & IFF_DRV_RUNNING)) { 3457 mlx5e_set_rx_mode(ifp); 3458 break; 3459 } 3460 PRIV_LOCK(priv); 3461 if (if_getflags(ifp) & IFF_UP) { 3462 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0) { 3463 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 3464 mlx5e_open_locked(ifp); 3465 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 3466 mlx5_set_port_status(priv->mdev, MLX5_PORT_UP); 3467 } 3468 } else { 3469 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) { 3470 mlx5_set_port_status(priv->mdev, 3471 MLX5_PORT_DOWN); 3472 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0) 3473 mlx5e_close_locked(ifp); 3474 mlx5e_update_carrier(priv); 3475 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 3476 } 3477 } 3478 PRIV_UNLOCK(priv); 3479 break; 3480 case SIOCADDMULTI: 3481 case SIOCDELMULTI: 3482 mlx5e_set_rx_mode(ifp); 3483 break; 3484 case SIOCSIFMEDIA: 3485 case SIOCGIFMEDIA: 3486 case SIOCGIFXMEDIA: 3487 ifr = (struct ifreq *)data; 3488 error = ifmedia_ioctl(ifp, ifr, &priv->media, command); 3489 break; 3490 case SIOCGIFCAPNV: 3491 error = 0; 3492 break; 3493 case SIOCSIFCAP: 3494 ifr = (struct ifreq *)data; 3495 drv_ioctl_data = &drv_ioctl_data_d; 3496 drv_ioctl_data->reqcap = ifr->ifr_reqcap; 3497 PRIV_LOCK(priv); 3498 drv_ioctl_data->reqcap2 = if_getcapenable2(ifp); 3499 drv_ioctl_data->nvcap = NULL; 3500 goto siocsifcap_driver; 3501 case SIOCSIFCAPNV: 3502 drv_ioctl_data = (struct siocsifcapnv_driver_data *)data; 3503 PRIV_LOCK(priv); 3504 siocsifcap_driver: 3505 mask = drv_ioctl_data->reqcap ^ if_getcapenable(ifp); 3506 3507 if (mask & IFCAP_TXCSUM) { 3508 if_togglecapenable(ifp, IFCAP_TXCSUM); 3509 if_togglehwassist(ifp, (CSUM_TCP | CSUM_UDP | CSUM_IP)); 3510 3511 if (IFCAP_TSO4 & if_getcapenable(ifp) && 3512 !(IFCAP_TXCSUM & if_getcapenable(ifp))) { 3513 mask &= ~IFCAP_TSO4; 3514 if_setcapenablebit(ifp, 0, IFCAP_TSO4); 3515 if_sethwassistbits(ifp, 0, CSUM_IP_TSO); 3516 mlx5_en_err(ifp, 3517 "tso4 disabled due to -txcsum.\n"); 3518 } 3519 } 3520 if (mask & IFCAP_TXCSUM_IPV6) { 3521 if_togglecapenable(ifp, IFCAP_TXCSUM_IPV6); 3522 if_togglehwassist(ifp, (CSUM_UDP_IPV6 | CSUM_TCP_IPV6)); 3523 3524 if (IFCAP_TSO6 & if_getcapenable(ifp) && 3525 !(IFCAP_TXCSUM_IPV6 & if_getcapenable(ifp))) { 3526 mask &= ~IFCAP_TSO6; 3527 if_setcapenablebit(ifp, 0, IFCAP_TSO6); 3528 if_sethwassistbits(ifp, 0, CSUM_IP6_TSO); 3529 mlx5_en_err(ifp, 3530 "tso6 disabled due to -txcsum6.\n"); 3531 } 3532 } 3533 if (mask & IFCAP_MEXTPG) 3534 if_togglecapenable(ifp, IFCAP_MEXTPG); 3535 if (mask & IFCAP_TXTLS4) 3536 if_togglecapenable(ifp, IFCAP_TXTLS4); 3537 if (mask & IFCAP_TXTLS6) 3538 if_togglecapenable(ifp, IFCAP_TXTLS6); 3539 #ifdef RATELIMIT 3540 if (mask & IFCAP_TXTLS_RTLMT) 3541 if_togglecapenable(ifp, IFCAP_TXTLS_RTLMT); 3542 #endif 3543 if (mask & IFCAP_RXCSUM) 3544 if_togglecapenable(ifp, IFCAP_RXCSUM); 3545 if (mask & IFCAP_RXCSUM_IPV6) 3546 if_togglecapenable(ifp, IFCAP_RXCSUM_IPV6); 3547 if (mask & IFCAP_TSO4) { 3548 if (!(IFCAP_TSO4 & if_getcapenable(ifp)) && 3549 !(IFCAP_TXCSUM & if_getcapenable(ifp))) { 3550 mlx5_en_err(ifp, "enable txcsum first.\n"); 3551 error = EAGAIN; 3552 goto out; 3553 } 3554 if_togglecapenable(ifp, IFCAP_TSO4); 3555 if_togglehwassist(ifp, CSUM_IP_TSO); 3556 } 3557 if (mask & IFCAP_TSO6) { 3558 if (!(IFCAP_TSO6 & if_getcapenable(ifp)) && 3559 !(IFCAP_TXCSUM_IPV6 & if_getcapenable(ifp))) { 3560 mlx5_en_err(ifp, "enable txcsum6 first.\n"); 3561 error = EAGAIN; 3562 goto out; 3563 } 3564 if_togglecapenable(ifp, IFCAP_TSO6); 3565 if_togglehwassist(ifp, CSUM_IP6_TSO); 3566 } 3567 if (mask & IFCAP_VLAN_HWTSO) 3568 if_togglecapenable(ifp, IFCAP_VLAN_HWTSO); 3569 if (mask & IFCAP_VLAN_HWFILTER) { 3570 if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER) 3571 mlx5e_disable_vlan_filter(priv); 3572 else 3573 mlx5e_enable_vlan_filter(priv); 3574 3575 if_togglecapenable(ifp, IFCAP_VLAN_HWFILTER); 3576 } 3577 if (mask & IFCAP_VLAN_HWTAGGING) 3578 if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING); 3579 if (mask & IFCAP_WOL_MAGIC) 3580 if_togglecapenable(ifp, IFCAP_WOL_MAGIC); 3581 if (mask & IFCAP_VXLAN_HWCSUM) { 3582 const bool was_enabled = 3583 (if_getcapenable(ifp) & IFCAP_VXLAN_HWCSUM) != 0; 3584 if (was_enabled) 3585 mlx5e_del_all_vxlan_rules(priv); 3586 if_togglecapenable(ifp, IFCAP_VXLAN_HWCSUM); 3587 if_togglehwassist(ifp, CSUM_INNER_IP | CSUM_INNER_IP_UDP | 3588 CSUM_INNER_IP_TCP | CSUM_INNER_IP6_UDP | 3589 CSUM_INNER_IP6_TCP); 3590 if (!was_enabled) { 3591 int err = mlx5e_add_all_vxlan_rules(priv); 3592 if (err != 0) { 3593 mlx5_en_err(ifp, 3594 "mlx5e_add_all_vxlan_rules() failed, %d (ignored)\n", err); 3595 } 3596 } 3597 } 3598 if (mask & IFCAP_VXLAN_HWTSO) { 3599 if_togglecapenable(ifp, IFCAP_VXLAN_HWTSO); 3600 if_togglehwassist(ifp, CSUM_INNER_IP_TSO | 3601 CSUM_INNER_IP6_TSO); 3602 } 3603 3604 VLAN_CAPABILITIES(ifp); 3605 /* turn off LRO means also turn of HW LRO - if it's on */ 3606 if (mask & IFCAP_LRO) { 3607 int was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 3608 bool need_restart = false; 3609 3610 if_togglecapenable(ifp, IFCAP_LRO); 3611 3612 /* figure out if updating HW LRO is needed */ 3613 if (!(if_getcapenable(ifp) & IFCAP_LRO)) { 3614 if (priv->params.hw_lro_en) { 3615 priv->params.hw_lro_en = false; 3616 need_restart = true; 3617 } 3618 } else { 3619 if (priv->params.hw_lro_en == false && 3620 priv->params_ethtool.hw_lro != 0) { 3621 priv->params.hw_lro_en = true; 3622 need_restart = true; 3623 } 3624 } 3625 if (was_opened && need_restart) { 3626 mlx5e_close_locked(ifp); 3627 mlx5e_open_locked(ifp); 3628 } 3629 } 3630 if (mask & IFCAP_HWRXTSTMP) { 3631 if_togglecapenable(ifp, IFCAP_HWRXTSTMP); 3632 if (if_getcapenable(ifp) & IFCAP_HWRXTSTMP) { 3633 if (priv->clbr_done == 0) 3634 mlx5e_reset_calibration_callout(priv); 3635 } else { 3636 callout_drain(&priv->tstmp_clbr); 3637 priv->clbr_done = 0; 3638 } 3639 } 3640 mask = drv_ioctl_data->reqcap2 ^ if_getcapenable2(ifp); 3641 if ((mask & IFCAP2_BIT(IFCAP2_RXTLS4)) != 0) 3642 if_togglecapenable2(ifp, IFCAP2_BIT(IFCAP2_RXTLS4)); 3643 if ((mask & IFCAP2_BIT(IFCAP2_RXTLS6)) != 0) 3644 if_togglecapenable2(ifp, IFCAP2_BIT(IFCAP2_RXTLS6)); 3645 out: 3646 PRIV_UNLOCK(priv); 3647 break; 3648 3649 case SIOCGI2C: 3650 ifr = (struct ifreq *)data; 3651 3652 /* 3653 * Copy from the user-space address ifr_data to the 3654 * kernel-space address i2c 3655 */ 3656 error = copyin(ifr_data_get_ptr(ifr), &i2c, sizeof(i2c)); 3657 if (error) 3658 break; 3659 3660 if (i2c.len > sizeof(i2c.data)) { 3661 error = EINVAL; 3662 break; 3663 } 3664 3665 PRIV_LOCK(priv); 3666 /* Get module_num which is required for the query_eeprom */ 3667 error = mlx5_query_module_num(priv->mdev, &module_num); 3668 if (error) { 3669 mlx5_en_err(ifp, 3670 "Query module num failed, eeprom reading is not supported\n"); 3671 error = EINVAL; 3672 goto err_i2c; 3673 } 3674 /* Check if module is present before doing an access */ 3675 module_status = mlx5_query_module_status(priv->mdev, module_num); 3676 if (module_status != MLX5_MODULE_STATUS_PLUGGED_ENABLED) { 3677 error = EINVAL; 3678 goto err_i2c; 3679 } 3680 /* 3681 * Currently 0XA0 and 0xA2 are the only addresses permitted. 3682 * The internal conversion is as follows: 3683 */ 3684 if (i2c.dev_addr == 0xA0) 3685 read_addr = MLX5_I2C_ADDR_LOW; 3686 else if (i2c.dev_addr == 0xA2) 3687 read_addr = MLX5_I2C_ADDR_HIGH; 3688 else { 3689 mlx5_en_err(ifp, 3690 "Query eeprom failed, Invalid Address: %X\n", 3691 i2c.dev_addr); 3692 error = EINVAL; 3693 goto err_i2c; 3694 } 3695 error = mlx5_query_eeprom(priv->mdev, 3696 read_addr, MLX5_EEPROM_LOW_PAGE, 3697 (uint32_t)i2c.offset, (uint32_t)i2c.len, module_num, 3698 (uint32_t *)i2c.data, &size_read); 3699 if (error) { 3700 mlx5_en_err(ifp, 3701 "Query eeprom failed, eeprom reading is not supported\n"); 3702 error = EINVAL; 3703 goto err_i2c; 3704 } 3705 3706 if (i2c.len > MLX5_EEPROM_MAX_BYTES) { 3707 error = mlx5_query_eeprom(priv->mdev, 3708 read_addr, MLX5_EEPROM_LOW_PAGE, 3709 (uint32_t)(i2c.offset + size_read), 3710 (uint32_t)(i2c.len - size_read), module_num, 3711 (uint32_t *)(i2c.data + size_read), &size_read); 3712 } 3713 if (error) { 3714 mlx5_en_err(ifp, 3715 "Query eeprom failed, eeprom reading is not supported\n"); 3716 error = EINVAL; 3717 goto err_i2c; 3718 } 3719 3720 error = copyout(&i2c, ifr_data_get_ptr(ifr), sizeof(i2c)); 3721 err_i2c: 3722 PRIV_UNLOCK(priv); 3723 break; 3724 case SIOCGIFDOWNREASON: 3725 ifdr = (struct ifdownreason *)data; 3726 bzero(ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg)); 3727 PRIV_LOCK(priv); 3728 error = -mlx5_query_pddr_troubleshooting_info(priv->mdev, NULL, 3729 ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg)); 3730 PRIV_UNLOCK(priv); 3731 if (error == 0) 3732 ifdr->ifdr_reason = IFDR_REASON_MSG; 3733 break; 3734 3735 case SIOCGIFRSSKEY: 3736 ifrk = (struct ifrsskey *)data; 3737 ifrk->ifrk_func = RSS_FUNC_TOEPLITZ; 3738 ifrk->ifrk_keylen = MLX5E_RSS_KEY_SIZE; 3739 CTASSERT(sizeof(ifrk->ifrk_key) >= MLX5E_RSS_KEY_SIZE); 3740 mlx5e_get_rss_key(ifrk->ifrk_key); 3741 break; 3742 3743 case SIOCGIFRSSHASH: 3744 ifrh = (struct ifrsshash *)data; 3745 ifrh->ifrh_func = RSS_FUNC_TOEPLITZ; 3746 ifrh->ifrh_types = 3747 RSS_TYPE_IPV4 | 3748 RSS_TYPE_TCP_IPV4 | 3749 RSS_TYPE_UDP_IPV4 | 3750 RSS_TYPE_IPV6 | 3751 RSS_TYPE_TCP_IPV6 | 3752 RSS_TYPE_UDP_IPV6; 3753 break; 3754 3755 default: 3756 error = ether_ioctl(ifp, command, data); 3757 break; 3758 } 3759 return (error); 3760 } 3761 3762 static int 3763 mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) 3764 { 3765 /* 3766 * TODO: uncoment once FW really sets all these bits if 3767 * (!mdev->caps.eth.rss_ind_tbl_cap || !mdev->caps.eth.csum_cap || 3768 * !mdev->caps.eth.max_lso_cap || !mdev->caps.eth.vlan_cap || 3769 * !(mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_SCQE_BRK_MOD)) return 3770 * -ENOTSUPP; 3771 */ 3772 3773 /* TODO: add more must-to-have features */ 3774 3775 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) 3776 return (-ENODEV); 3777 3778 return (0); 3779 } 3780 3781 static u16 3782 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev) 3783 { 3784 const int min_size = ETHER_VLAN_ENCAP_LEN + ETHER_HDR_LEN; 3785 const int max_size = MLX5E_MAX_TX_INLINE; 3786 const int bf_buf_size = 3787 ((1U << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2U) - 3788 (sizeof(struct mlx5e_tx_wqe) - 2); 3789 3790 /* verify against driver limits */ 3791 if (bf_buf_size > max_size) 3792 return (max_size); 3793 else if (bf_buf_size < min_size) 3794 return (min_size); 3795 else 3796 return (bf_buf_size); 3797 } 3798 3799 static int 3800 mlx5e_build_ifp_priv(struct mlx5_core_dev *mdev, 3801 struct mlx5e_priv *priv, 3802 int num_comp_vectors) 3803 { 3804 int err; 3805 3806 /* 3807 * TODO: Consider link speed for setting "log_sq_size", 3808 * "log_rq_size" and "cq_moderation_xxx": 3809 */ 3810 priv->params.log_sq_size = 3811 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; 3812 priv->params.log_rq_size = 3813 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; 3814 priv->params.rx_cq_moderation_usec = 3815 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 3816 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE : 3817 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; 3818 priv->params.rx_cq_moderation_mode = 3819 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 1 : 0; 3820 priv->params.rx_cq_moderation_pkts = 3821 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; 3822 priv->params.tx_cq_moderation_usec = 3823 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; 3824 priv->params.tx_cq_moderation_pkts = 3825 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; 3826 priv->params.rx_hash_log_tbl_sz = 3827 (order_base_2(num_comp_vectors) > 3828 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ? 3829 order_base_2(num_comp_vectors) : 3830 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ; 3831 priv->params.num_tc = 1; 3832 priv->params.default_vlan_prio = 0; 3833 priv->counter_set_id = -1; 3834 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev); 3835 3836 err = mlx5_query_min_inline(mdev, &priv->params.tx_min_inline_mode); 3837 if (err) 3838 return (err); 3839 3840 /* 3841 * hw lro is currently defaulted to off. when it won't anymore we 3842 * will consider the HW capability: "!!MLX5_CAP_ETH(mdev, lro_cap)" 3843 */ 3844 priv->params.hw_lro_en = false; 3845 priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; 3846 3847 /* 3848 * CQE zipping is off, because the per-packet 32-bit Toeplitz hash 3849 * is then not supported. The 32-bit Toeplitz hash is needed to 3850 * correctly demultiplex incoming traffic into the expected 3851 * network queues. 3852 */ 3853 priv->params.cqe_zipping_en = false; 3854 3855 priv->mdev = mdev; 3856 priv->params.num_channels = num_comp_vectors; 3857 priv->params.channels_rsss = 1; 3858 priv->order_base_2_num_channels = order_base_2(num_comp_vectors); 3859 priv->queue_mapping_channel_mask = 3860 roundup_pow_of_two(num_comp_vectors) - 1; 3861 priv->num_tc = priv->params.num_tc; 3862 priv->default_vlan_prio = priv->params.default_vlan_prio; 3863 3864 INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work); 3865 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); 3866 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); 3867 3868 return (0); 3869 } 3870 3871 static void 3872 mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev *mdev, void *mkc) 3873 { 3874 bool ro_pci_enable = 3875 pci_get_relaxed_ordering_enabled(mdev->pdev->dev.bsddev); 3876 bool ro_write = MLX5_CAP_GEN(mdev, relaxed_ordering_write); 3877 bool ro_read = MLX5_CAP_GEN(mdev, relaxed_ordering_read); 3878 3879 MLX5_SET(mkc, mkc, relaxed_ordering_read, ro_pci_enable && ro_read); 3880 MLX5_SET(mkc, mkc, relaxed_ordering_write, ro_pci_enable && ro_write); 3881 } 3882 3883 static int 3884 mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn, 3885 struct mlx5_core_mkey *mkey) 3886 { 3887 if_t ifp = priv->ifp; 3888 struct mlx5_core_dev *mdev = priv->mdev; 3889 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in); 3890 void *mkc; 3891 u32 *in; 3892 int err; 3893 3894 in = mlx5_vzalloc(inlen); 3895 if (in == NULL) { 3896 mlx5_en_err(ifp, "failed to allocate inbox\n"); 3897 return (-ENOMEM); 3898 } 3899 3900 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); 3901 MLX5_SET(mkc, mkc, access_mode, MLX5_ACCESS_MODE_PA); 3902 MLX5_SET(mkc, mkc, umr_en, 1); /* used by HW TLS */ 3903 MLX5_SET(mkc, mkc, lw, 1); 3904 MLX5_SET(mkc, mkc, lr, 1); 3905 mlx5e_mkey_set_relaxed_ordering(mdev, mkc); 3906 MLX5_SET(mkc, mkc, pd, pdn); 3907 MLX5_SET(mkc, mkc, length64, 1); 3908 MLX5_SET(mkc, mkc, qpn, 0xffffff); 3909 3910 err = mlx5_core_create_mkey(mdev, mkey, in, inlen); 3911 if (err) 3912 mlx5_en_err(ifp, "mlx5_core_create_mkey failed, %d\n", 3913 err); 3914 3915 kvfree(in); 3916 return (err); 3917 } 3918 3919 static const char *mlx5e_vport_stats_desc[] = { 3920 MLX5E_VPORT_STATS(MLX5E_STATS_DESC) 3921 }; 3922 3923 static const char *mlx5e_pport_stats_desc[] = { 3924 MLX5E_PPORT_STATS(MLX5E_STATS_DESC) 3925 }; 3926 3927 static int 3928 mlx5e_priv_static_init(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev, 3929 const uint32_t channels) 3930 { 3931 uint32_t x; 3932 int err; 3933 3934 mtx_init(&priv->async_events_mtx, "mlx5async", MTX_NETWORK_LOCK, MTX_DEF); 3935 sx_init(&priv->state_lock, "mlx5state"); 3936 callout_init_mtx(&priv->watchdog, &priv->async_events_mtx, 0); 3937 MLX5_INIT_DOORBELL_LOCK(&priv->doorbell_lock); 3938 for (x = 0; x != channels; x++) 3939 mlx5e_chan_static_init(priv, &priv->channel[x], x); 3940 3941 for (x = 0; x != channels; x++) { 3942 err = mlx5_alloc_bfreg(mdev, &priv->channel[x].bfreg, false, false); 3943 if (err) 3944 goto err_alloc_bfreg; 3945 } 3946 return (0); 3947 3948 err_alloc_bfreg: 3949 while (x--) 3950 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg); 3951 3952 for (x = 0; x != channels; x++) 3953 mlx5e_chan_static_destroy(&priv->channel[x]); 3954 callout_drain(&priv->watchdog); 3955 mtx_destroy(&priv->async_events_mtx); 3956 sx_destroy(&priv->state_lock); 3957 return (err); 3958 } 3959 3960 static void 3961 mlx5e_priv_static_destroy(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev, 3962 const uint32_t channels) 3963 { 3964 uint32_t x; 3965 3966 for (x = 0; x != channels; x++) 3967 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg); 3968 for (x = 0; x != channels; x++) 3969 mlx5e_chan_static_destroy(&priv->channel[x]); 3970 callout_drain(&priv->watchdog); 3971 mtx_destroy(&priv->async_events_mtx); 3972 sx_destroy(&priv->state_lock); 3973 } 3974 3975 static int 3976 sysctl_firmware(SYSCTL_HANDLER_ARGS) 3977 { 3978 /* 3979 * %d.%d%.d the string format. 3980 * fw_rev_{maj,min,sub} return u16, 2^16 = 65536. 3981 * We need at most 5 chars to store that. 3982 * It also has: two "." and NULL at the end, which means we need 18 3983 * (5*3 + 3) chars at most. 3984 */ 3985 char fw[18]; 3986 struct mlx5e_priv *priv = arg1; 3987 int error; 3988 3989 snprintf(fw, sizeof(fw), "%d.%d.%d", fw_rev_maj(priv->mdev), fw_rev_min(priv->mdev), 3990 fw_rev_sub(priv->mdev)); 3991 error = sysctl_handle_string(oidp, fw, sizeof(fw), req); 3992 return (error); 3993 } 3994 3995 static void 3996 mlx5e_disable_tx_dma(struct mlx5e_channel *ch) 3997 { 3998 int i; 3999 4000 for (i = 0; i < ch->priv->num_tc; i++) 4001 mlx5e_drain_sq(&ch->sq[i]); 4002 } 4003 4004 static void 4005 mlx5e_reset_sq_doorbell_record(struct mlx5e_sq *sq) 4006 { 4007 4008 sq->doorbell.d32[0] = cpu_to_be32(MLX5_OPCODE_NOP); 4009 sq->doorbell.d32[1] = cpu_to_be32(sq->sqn << 8); 4010 mlx5e_tx_notify_hw(sq, true); 4011 } 4012 4013 void 4014 mlx5e_resume_sq(struct mlx5e_sq *sq) 4015 { 4016 int err; 4017 4018 /* check if already enabled */ 4019 if (READ_ONCE(sq->running) != 0) 4020 return; 4021 4022 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_ERR, 4023 MLX5_SQC_STATE_RST); 4024 if (err != 0) { 4025 mlx5_en_err(sq->ifp, 4026 "mlx5e_modify_sq() from ERR to RST failed: %d\n", err); 4027 } 4028 4029 sq->cc = 0; 4030 sq->pc = 0; 4031 4032 /* reset doorbell prior to moving from RST to RDY */ 4033 mlx5e_reset_sq_doorbell_record(sq); 4034 4035 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, 4036 MLX5_SQC_STATE_RDY); 4037 if (err != 0) { 4038 mlx5_en_err(sq->ifp, 4039 "mlx5e_modify_sq() from RST to RDY failed: %d\n", err); 4040 } 4041 4042 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL; 4043 WRITE_ONCE(sq->running, 1); 4044 } 4045 4046 static void 4047 mlx5e_enable_tx_dma(struct mlx5e_channel *ch) 4048 { 4049 int i; 4050 4051 for (i = 0; i < ch->priv->num_tc; i++) 4052 mlx5e_resume_sq(&ch->sq[i]); 4053 } 4054 4055 static void 4056 mlx5e_disable_rx_dma(struct mlx5e_channel *ch) 4057 { 4058 struct mlx5e_rq *rq = &ch->rq; 4059 struct epoch_tracker et; 4060 int err; 4061 4062 mtx_lock(&rq->mtx); 4063 rq->enabled = 0; 4064 callout_stop(&rq->watchdog); 4065 mtx_unlock(&rq->mtx); 4066 4067 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 4068 if (err != 0) { 4069 mlx5_en_err(rq->ifp, 4070 "mlx5e_modify_rq() from RDY to RST failed: %d\n", err); 4071 } 4072 4073 while (!mlx5_wq_ll_is_empty(&rq->wq)) { 4074 msleep(1); 4075 NET_EPOCH_ENTER(et); 4076 rq->cq.mcq.comp(&rq->cq.mcq, NULL); 4077 NET_EPOCH_EXIT(et); 4078 } 4079 4080 /* 4081 * Transitioning into RST state will allow the FW to track less ERR state queues, 4082 * thus reducing the recv queue flushing time 4083 */ 4084 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_ERR, MLX5_RQC_STATE_RST); 4085 if (err != 0) { 4086 mlx5_en_err(rq->ifp, 4087 "mlx5e_modify_rq() from ERR to RST failed: %d\n", err); 4088 } 4089 } 4090 4091 static void 4092 mlx5e_enable_rx_dma(struct mlx5e_channel *ch) 4093 { 4094 struct mlx5e_rq *rq = &ch->rq; 4095 struct epoch_tracker et; 4096 int err; 4097 4098 rq->wq.wqe_ctr = 0; 4099 mlx5_wq_ll_update_db_record(&rq->wq); 4100 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 4101 if (err != 0) { 4102 mlx5_en_err(rq->ifp, 4103 "mlx5e_modify_rq() from RST to RDY failed: %d\n", err); 4104 } 4105 4106 rq->enabled = 1; 4107 4108 NET_EPOCH_ENTER(et); 4109 rq->cq.mcq.comp(&rq->cq.mcq, NULL); 4110 NET_EPOCH_EXIT(et); 4111 } 4112 4113 void 4114 mlx5e_modify_tx_dma(struct mlx5e_priv *priv, uint8_t value) 4115 { 4116 int i; 4117 4118 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 4119 return; 4120 4121 for (i = 0; i < priv->params.num_channels; i++) { 4122 if (value) 4123 mlx5e_disable_tx_dma(&priv->channel[i]); 4124 else 4125 mlx5e_enable_tx_dma(&priv->channel[i]); 4126 } 4127 } 4128 4129 void 4130 mlx5e_modify_rx_dma(struct mlx5e_priv *priv, uint8_t value) 4131 { 4132 int i; 4133 4134 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 4135 return; 4136 4137 for (i = 0; i < priv->params.num_channels; i++) { 4138 if (value) 4139 mlx5e_disable_rx_dma(&priv->channel[i]); 4140 else 4141 mlx5e_enable_rx_dma(&priv->channel[i]); 4142 } 4143 } 4144 4145 static void 4146 mlx5e_add_hw_stats(struct mlx5e_priv *priv) 4147 { 4148 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw), 4149 OID_AUTO, "fw_version", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, 4150 priv, 0, sysctl_firmware, "A", "HCA firmware version"); 4151 4152 SYSCTL_ADD_STRING(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw), 4153 OID_AUTO, "board_id", CTLFLAG_RD, priv->mdev->board_id, 0, 4154 "Board ID"); 4155 } 4156 4157 static int 4158 mlx5e_sysctl_tx_priority_flow_control(SYSCTL_HANDLER_ARGS) 4159 { 4160 struct mlx5e_priv *priv = arg1; 4161 uint8_t temp[MLX5E_MAX_PRIORITY]; 4162 uint32_t tx_pfc; 4163 int err; 4164 int i; 4165 4166 PRIV_LOCK(priv); 4167 4168 tx_pfc = priv->params.tx_priority_flow_control; 4169 4170 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) 4171 temp[i] = (tx_pfc >> i) & 1; 4172 4173 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY); 4174 if (err || !req->newptr) 4175 goto done; 4176 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY); 4177 if (err) 4178 goto done; 4179 4180 priv->params.tx_priority_flow_control = 0; 4181 4182 /* range check input value */ 4183 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) { 4184 if (temp[i] > 1) { 4185 err = ERANGE; 4186 goto done; 4187 } 4188 priv->params.tx_priority_flow_control |= (temp[i] << i); 4189 } 4190 4191 /* check if update is required */ 4192 if (tx_pfc != priv->params.tx_priority_flow_control) 4193 err = -mlx5e_set_port_pfc(priv); 4194 done: 4195 if (err != 0) 4196 priv->params.tx_priority_flow_control= tx_pfc; 4197 PRIV_UNLOCK(priv); 4198 4199 return (err); 4200 } 4201 4202 static int 4203 mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_ARGS) 4204 { 4205 struct mlx5e_priv *priv = arg1; 4206 uint8_t temp[MLX5E_MAX_PRIORITY]; 4207 uint32_t rx_pfc; 4208 int err; 4209 int i; 4210 4211 PRIV_LOCK(priv); 4212 4213 rx_pfc = priv->params.rx_priority_flow_control; 4214 4215 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) 4216 temp[i] = (rx_pfc >> i) & 1; 4217 4218 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY); 4219 if (err || !req->newptr) 4220 goto done; 4221 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY); 4222 if (err) 4223 goto done; 4224 4225 priv->params.rx_priority_flow_control = 0; 4226 4227 /* range check input value */ 4228 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) { 4229 if (temp[i] > 1) { 4230 err = ERANGE; 4231 goto done; 4232 } 4233 priv->params.rx_priority_flow_control |= (temp[i] << i); 4234 } 4235 4236 /* check if update is required */ 4237 if (rx_pfc != priv->params.rx_priority_flow_control) { 4238 err = -mlx5e_set_port_pfc(priv); 4239 if (err == 0 && priv->sw_is_port_buf_owner) 4240 err = mlx5e_update_buf_lossy(priv); 4241 } 4242 done: 4243 if (err != 0) 4244 priv->params.rx_priority_flow_control= rx_pfc; 4245 PRIV_UNLOCK(priv); 4246 4247 return (err); 4248 } 4249 4250 static void 4251 mlx5e_setup_pauseframes(struct mlx5e_priv *priv) 4252 { 4253 int error; 4254 4255 /* enable pauseframes by default */ 4256 priv->params.tx_pauseframe_control = 1; 4257 priv->params.rx_pauseframe_control = 1; 4258 4259 /* disable ports flow control, PFC, by default */ 4260 priv->params.tx_priority_flow_control = 0; 4261 priv->params.rx_priority_flow_control = 0; 4262 4263 /* register pauseframe SYSCTLs */ 4264 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4265 OID_AUTO, "tx_pauseframe_control", CTLFLAG_RDTUN, 4266 &priv->params.tx_pauseframe_control, 0, 4267 "Set to enable TX pause frames. Clear to disable."); 4268 4269 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4270 OID_AUTO, "rx_pauseframe_control", CTLFLAG_RDTUN, 4271 &priv->params.rx_pauseframe_control, 0, 4272 "Set to enable RX pause frames. Clear to disable."); 4273 4274 /* register priority flow control, PFC, SYSCTLs */ 4275 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4276 OID_AUTO, "tx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN | 4277 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_tx_priority_flow_control, "CU", 4278 "Set to enable TX ports flow control frames for priorities 0..7. Clear to disable."); 4279 4280 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4281 OID_AUTO, "rx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN | 4282 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_rx_priority_flow_control, "CU", 4283 "Set to enable RX ports flow control frames for priorities 0..7. Clear to disable."); 4284 4285 PRIV_LOCK(priv); 4286 4287 /* range check */ 4288 priv->params.tx_pauseframe_control = 4289 priv->params.tx_pauseframe_control ? 1 : 0; 4290 priv->params.rx_pauseframe_control = 4291 priv->params.rx_pauseframe_control ? 1 : 0; 4292 4293 /* update firmware */ 4294 error = mlx5e_set_port_pause_and_pfc(priv); 4295 if (error == -EINVAL) { 4296 mlx5_en_err(priv->ifp, 4297 "Global pauseframes must be disabled before enabling PFC.\n"); 4298 priv->params.rx_priority_flow_control = 0; 4299 priv->params.tx_priority_flow_control = 0; 4300 4301 /* update firmware */ 4302 (void) mlx5e_set_port_pause_and_pfc(priv); 4303 } 4304 PRIV_UNLOCK(priv); 4305 } 4306 4307 static int 4308 mlx5e_ul_snd_tag_alloc(if_t ifp, 4309 union if_snd_tag_alloc_params *params, 4310 struct m_snd_tag **ppmt) 4311 { 4312 struct mlx5e_priv *priv; 4313 struct mlx5e_channel *pch; 4314 4315 priv = if_getsoftc(ifp); 4316 4317 if (unlikely(priv->gone || params->hdr.flowtype == M_HASHTYPE_NONE)) { 4318 return (EOPNOTSUPP); 4319 } else { 4320 /* keep this code synced with mlx5e_select_queue() */ 4321 u32 ch = priv->params.num_channels; 4322 #ifdef RSS 4323 u32 temp; 4324 4325 if (rss_hash2bucket(params->hdr.flowid, 4326 params->hdr.flowtype, &temp) == 0) 4327 ch = temp % ch; 4328 else 4329 #endif 4330 ch = (params->hdr.flowid % 128) % ch; 4331 4332 /* 4333 * NOTE: The channels array is only freed at detach 4334 * and it safe to return a pointer to the send tag 4335 * inside the channels structure as long as we 4336 * reference the priv. 4337 */ 4338 pch = priv->channel + ch; 4339 4340 /* check if send queue is not running */ 4341 if (unlikely(pch->sq[0].running == 0)) 4342 return (ENXIO); 4343 m_snd_tag_ref(&pch->tag); 4344 *ppmt = &pch->tag; 4345 return (0); 4346 } 4347 } 4348 4349 static int 4350 mlx5e_ul_snd_tag_query(struct m_snd_tag *pmt, union if_snd_tag_query_params *params) 4351 { 4352 struct mlx5e_channel *pch = 4353 container_of(pmt, struct mlx5e_channel, tag); 4354 4355 params->unlimited.max_rate = -1ULL; 4356 params->unlimited.queue_level = mlx5e_sq_queue_level(&pch->sq[0]); 4357 return (0); 4358 } 4359 4360 static void 4361 mlx5e_ul_snd_tag_free(struct m_snd_tag *pmt) 4362 { 4363 struct mlx5e_channel *pch = 4364 container_of(pmt, struct mlx5e_channel, tag); 4365 4366 complete(&pch->completion); 4367 } 4368 4369 static int 4370 mlx5e_snd_tag_alloc(if_t ifp, 4371 union if_snd_tag_alloc_params *params, 4372 struct m_snd_tag **ppmt) 4373 { 4374 4375 switch (params->hdr.type) { 4376 #ifdef RATELIMIT 4377 case IF_SND_TAG_TYPE_RATE_LIMIT: 4378 return (mlx5e_rl_snd_tag_alloc(ifp, params, ppmt)); 4379 #ifdef KERN_TLS 4380 case IF_SND_TAG_TYPE_TLS_RATE_LIMIT: 4381 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt)); 4382 #endif 4383 #endif 4384 case IF_SND_TAG_TYPE_UNLIMITED: 4385 return (mlx5e_ul_snd_tag_alloc(ifp, params, ppmt)); 4386 #ifdef KERN_TLS 4387 case IF_SND_TAG_TYPE_TLS: 4388 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt)); 4389 case IF_SND_TAG_TYPE_TLS_RX: 4390 return (mlx5e_tls_rx_snd_tag_alloc(ifp, params, ppmt)); 4391 #endif 4392 default: 4393 return (EOPNOTSUPP); 4394 } 4395 } 4396 4397 #ifdef RATELIMIT 4398 #define NUM_HDWR_RATES_MLX 13 4399 static const uint64_t adapter_rates_mlx[NUM_HDWR_RATES_MLX] = { 4400 135375, /* 1,083,000 */ 4401 180500, /* 1,444,000 */ 4402 270750, /* 2,166,000 */ 4403 361000, /* 2,888,000 */ 4404 541500, /* 4,332,000 */ 4405 721875, /* 5,775,000 */ 4406 1082875, /* 8,663,000 */ 4407 1443875, /* 11,551,000 */ 4408 2165750, /* 17,326,000 */ 4409 2887750, /* 23,102,000 */ 4410 4331625, /* 34,653,000 */ 4411 5775500, /* 46,204,000 */ 4412 8663125 /* 69,305,000 */ 4413 }; 4414 4415 static void 4416 mlx5e_ratelimit_query(if_t ifp __unused, struct if_ratelimit_query_results *q) 4417 { 4418 /* 4419 * This function needs updating by the driver maintainer! 4420 * For the MLX card there are currently (ConectX-4?) 13 4421 * pre-set rates and others i.e. ConnectX-5, 6, 7?? 4422 * 4423 * This will change based on later adapters 4424 * and this code should be updated to look at ifp 4425 * and figure out the specific adapter type 4426 * settings i.e. how many rates as well 4427 * as if they are fixed (as is shown here) or 4428 * if they are dynamic (example chelsio t4). Also if there 4429 * is a maximum number of flows that the adapter 4430 * can handle that too needs to be updated in 4431 * the max_flows field. 4432 */ 4433 q->rate_table = adapter_rates_mlx; 4434 q->flags = RT_IS_FIXED_TABLE; 4435 q->max_flows = 0; /* mlx has no limit */ 4436 q->number_of_rates = NUM_HDWR_RATES_MLX; 4437 q->min_segment_burst = 1; 4438 } 4439 #endif 4440 4441 static void 4442 mlx5e_ifm_add(struct mlx5e_priv *priv, int type) 4443 { 4444 ifmedia_add(&priv->media, type | IFM_ETHER, 0, NULL); 4445 ifmedia_add(&priv->media, type | IFM_ETHER | 4446 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL); 4447 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_RXPAUSE, 0, NULL); 4448 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_TXPAUSE, 0, NULL); 4449 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX, 0, NULL); 4450 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4451 IFM_ETH_RXPAUSE, 0, NULL); 4452 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4453 IFM_ETH_TXPAUSE, 0, NULL); 4454 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4455 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL); 4456 } 4457 4458 static void * 4459 mlx5e_create_ifp(struct mlx5_core_dev *mdev) 4460 { 4461 if_t ifp; 4462 struct mlx5e_priv *priv; 4463 u8 dev_addr[ETHER_ADDR_LEN] __aligned(4); 4464 struct sysctl_oid_list *child; 4465 int ncv = mdev->priv.eq_table.num_comp_vectors; 4466 char unit[16]; 4467 struct pfil_head_args pa; 4468 int err; 4469 u32 eth_proto_cap; 4470 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 4471 bool ext; 4472 struct media media_entry = {}; 4473 4474 if (mlx5e_check_required_hca_cap(mdev)) { 4475 mlx5_core_dbg(mdev, "mlx5e_check_required_hca_cap() failed\n"); 4476 return (NULL); 4477 } 4478 4479 /* 4480 * Try to allocate the priv and make room for worst-case 4481 * number of channel structures: 4482 */ 4483 priv = malloc_domainset(sizeof(*priv) + 4484 (sizeof(priv->channel[0]) * mdev->priv.eq_table.num_comp_vectors), 4485 M_MLX5EN, mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO); 4486 4487 ifp = priv->ifp = if_alloc_dev(IFT_ETHER, mdev->pdev->dev.bsddev); 4488 if (ifp == NULL) { 4489 mlx5_core_err(mdev, "if_alloc() failed\n"); 4490 goto err_free_priv; 4491 } 4492 /* setup all static fields */ 4493 if (mlx5e_priv_static_init(priv, mdev, mdev->priv.eq_table.num_comp_vectors)) { 4494 mlx5_core_err(mdev, "mlx5e_priv_static_init() failed\n"); 4495 goto err_free_ifp; 4496 } 4497 4498 if_setsoftc(ifp, priv); 4499 if_initname(ifp, "mce", device_get_unit(mdev->pdev->dev.bsddev)); 4500 if_setmtu(ifp, ETHERMTU); 4501 if_setinitfn(ifp, mlx5e_open); 4502 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 4503 if_setioctlfn(ifp, mlx5e_ioctl); 4504 if_settransmitfn(ifp, mlx5e_xmit); 4505 if_setqflushfn(ifp, if_qflush); 4506 if_setgetcounterfn(ifp, mlx5e_get_counter); 4507 if_setsendqlen(ifp, ifqmaxlen); 4508 /* 4509 * Set driver features 4510 */ 4511 if_setcapabilities(ifp, IFCAP_NV); 4512 if_setcapabilitiesbit(ifp, IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6, 0); 4513 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING, 0); 4514 if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWFILTER, 0); 4515 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE | IFCAP_JUMBO_MTU, 0); 4516 if_setcapabilitiesbit(ifp, IFCAP_LRO, 0); 4517 if_setcapabilitiesbit(ifp, IFCAP_TSO | IFCAP_VLAN_HWTSO, 0); 4518 if_setcapabilitiesbit(ifp, IFCAP_HWSTATS | IFCAP_HWRXTSTMP, 0); 4519 if_setcapabilitiesbit(ifp, IFCAP_MEXTPG, 0); 4520 if_setcapabilitiesbit(ifp, IFCAP_TXTLS4 | IFCAP_TXTLS6, 0); 4521 #ifdef RATELIMIT 4522 if_setcapabilitiesbit(ifp, IFCAP_TXRTLMT | IFCAP_TXTLS_RTLMT, 0); 4523 #endif 4524 if_setcapabilitiesbit(ifp, IFCAP_VXLAN_HWCSUM | IFCAP_VXLAN_HWTSO, 0); 4525 if_setcapabilities2bit(ifp, IFCAP2_BIT(IFCAP2_RXTLS4) | 4526 IFCAP2_BIT(IFCAP2_RXTLS6), 0); 4527 if_setsndtagallocfn(ifp, mlx5e_snd_tag_alloc); 4528 #ifdef RATELIMIT 4529 if_setratelimitqueryfn(ifp, mlx5e_ratelimit_query); 4530 #endif 4531 /* set TSO limits so that we don't have to drop TX packets */ 4532 if_sethwtsomax(ifp, MLX5E_MAX_TX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN)); 4533 if_sethwtsomaxsegcount(ifp, MLX5E_MAX_TX_MBUF_FRAGS - 1 /* hdr */); 4534 if_sethwtsomaxsegsize(ifp, MLX5E_MAX_TX_MBUF_SIZE); 4535 4536 if_setcapenable(ifp, if_getcapabilities(ifp)); 4537 if_setcapenable2(ifp, if_getcapabilities2(ifp)); 4538 if_sethwassist(ifp, 0); 4539 if (if_getcapenable(ifp) & IFCAP_TSO) 4540 if_sethwassistbits(ifp, CSUM_TSO, 0); 4541 if (if_getcapenable(ifp) & IFCAP_TXCSUM) 4542 if_sethwassistbits(ifp, (CSUM_TCP | CSUM_UDP | CSUM_IP), 0); 4543 if (if_getcapenable(ifp) & IFCAP_TXCSUM_IPV6) 4544 if_sethwassistbits(ifp, (CSUM_UDP_IPV6 | CSUM_TCP_IPV6), 0); 4545 if (if_getcapabilities(ifp) & IFCAP_VXLAN_HWCSUM) 4546 if_sethwassistbits(ifp, CSUM_INNER_IP6_UDP | CSUM_INNER_IP6_TCP | 4547 CSUM_INNER_IP | CSUM_INNER_IP_UDP | CSUM_INNER_IP_TCP | 4548 CSUM_ENCAP_VXLAN, 0); 4549 if (if_getcapabilities(ifp) & IFCAP_VXLAN_HWTSO) 4550 if_sethwassistbits(ifp, CSUM_INNER_IP6_TSO | CSUM_INNER_IP_TSO, 0); 4551 4552 /* ifnet sysctl tree */ 4553 sysctl_ctx_init(&priv->sysctl_ctx); 4554 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_dev), 4555 OID_AUTO, if_getdname(ifp), CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4556 "MLX5 ethernet - interface name"); 4557 if (priv->sysctl_ifnet == NULL) { 4558 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4559 goto err_free_sysctl; 4560 } 4561 snprintf(unit, sizeof(unit), "%d", if_getdunit(ifp)); 4562 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4563 OID_AUTO, unit, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4564 "MLX5 ethernet - interface unit"); 4565 if (priv->sysctl_ifnet == NULL) { 4566 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4567 goto err_free_sysctl; 4568 } 4569 4570 /* HW sysctl tree */ 4571 child = SYSCTL_CHILDREN(device_get_sysctl_tree(mdev->pdev->dev.bsddev)); 4572 priv->sysctl_hw = SYSCTL_ADD_NODE(&priv->sysctl_ctx, child, 4573 OID_AUTO, "hw", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4574 "MLX5 ethernet dev hw"); 4575 if (priv->sysctl_hw == NULL) { 4576 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4577 goto err_free_sysctl; 4578 } 4579 4580 err = mlx5e_build_ifp_priv(mdev, priv, ncv); 4581 if (err) { 4582 mlx5_core_err(mdev, "mlx5e_build_ifp_priv() failed (%d)\n", err); 4583 goto err_free_sysctl; 4584 } 4585 4586 /* reuse mlx5core's watchdog workqueue */ 4587 priv->wq = mdev->priv.health.wq_watchdog; 4588 4589 err = mlx5_core_alloc_pd(mdev, &priv->pdn, 0); 4590 if (err) { 4591 mlx5_en_err(ifp, "mlx5_core_alloc_pd failed, %d\n", err); 4592 goto err_free_wq; 4593 } 4594 err = mlx5_alloc_transport_domain(mdev, &priv->tdn, 0); 4595 if (err) { 4596 mlx5_en_err(ifp, 4597 "mlx5_alloc_transport_domain failed, %d\n", err); 4598 goto err_dealloc_pd; 4599 } 4600 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr); 4601 if (err) { 4602 mlx5_en_err(ifp, "mlx5e_create_mkey failed, %d\n", err); 4603 goto err_dealloc_transport_domain; 4604 } 4605 mlx5_query_nic_vport_mac_address(priv->mdev, 0, dev_addr); 4606 4607 /* check if we should generate a random MAC address */ 4608 if (MLX5_CAP_GEN(priv->mdev, vport_group_manager) == 0 && 4609 is_zero_ether_addr(dev_addr)) { 4610 random_ether_addr(dev_addr); 4611 mlx5_en_err(ifp, "Assigned random MAC address\n"); 4612 } 4613 4614 err = mlx5e_rl_init(priv); 4615 if (err) { 4616 mlx5_en_err(ifp, "mlx5e_rl_init failed, %d\n", err); 4617 goto err_create_mkey; 4618 } 4619 4620 err = mlx5e_tls_init(priv); 4621 if (err) { 4622 if_printf(ifp, "%s: mlx5e_tls_init failed\n", __func__); 4623 goto err_rl_init; 4624 } 4625 4626 err = mlx5e_open_drop_rq(priv, &priv->drop_rq); 4627 if (err) { 4628 if_printf(ifp, "%s: mlx5e_open_drop_rq failed (%d)\n", __func__, err); 4629 goto err_tls_init; 4630 } 4631 4632 err = mlx5e_open_rqts(priv); 4633 if (err) { 4634 if_printf(ifp, "%s: mlx5e_open_rqts failed (%d)\n", __func__, err); 4635 goto err_open_drop_rq; 4636 } 4637 4638 err = mlx5e_open_tirs(priv); 4639 if (err) { 4640 mlx5_en_err(ifp, "mlx5e_open_tirs() failed, %d\n", err); 4641 goto err_open_rqts; 4642 } 4643 4644 err = mlx5e_open_flow_tables(priv); 4645 if (err) { 4646 if_printf(ifp, "%s: mlx5e_open_flow_tables failed (%d)\n", __func__, err); 4647 goto err_open_tirs; 4648 } 4649 4650 err = mlx5e_tls_rx_init(priv); 4651 if (err) { 4652 if_printf(ifp, "%s: mlx5e_tls_rx_init() failed, %d\n", __func__, err); 4653 goto err_open_flow_tables; 4654 } 4655 4656 /* set default MTU */ 4657 mlx5e_set_dev_port_mtu(ifp, if_getmtu(ifp)); 4658 4659 /* Set default media status */ 4660 priv->media_status_last = IFM_AVALID; 4661 priv->media_active_last = IFM_ETHER | IFM_AUTO | IFM_FDX; 4662 4663 /* setup default pauseframes configuration */ 4664 mlx5e_setup_pauseframes(priv); 4665 4666 /* Setup supported medias */ 4667 if (!mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, 1)) { 4668 ext = MLX5_CAP_PCAM_FEATURE(mdev, 4669 ptys_extended_ethernet); 4670 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 4671 eth_proto_capability); 4672 } else { 4673 ext = false; 4674 eth_proto_cap = 0; 4675 mlx5_en_err(ifp, "Query port media capability failed, %d\n", err); 4676 } 4677 4678 ifmedia_init(&priv->media, IFM_IMASK, 4679 mlx5e_media_change, mlx5e_media_status); 4680 4681 if (ext) { 4682 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) { 4683 /* check if hardware has the right capability */ 4684 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap) 4685 continue; 4686 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) { 4687 media_entry = mlx5e_ext_mode_table[i][j]; 4688 if (media_entry.subtype == 0) 4689 continue; 4690 /* check if this subtype was already added */ 4691 for (unsigned k = 0; k != i; k++) { 4692 /* check if hardware has the right capability */ 4693 if (MLX5E_PROT_MASK(k) & ~eth_proto_cap) 4694 continue; 4695 for (unsigned m = 0; m != MLX5E_CABLE_TYPE_NUMBER; m++) { 4696 if (media_entry.subtype == mlx5e_ext_mode_table[k][m].subtype) 4697 goto skip_ext_media; 4698 } 4699 } 4700 mlx5e_ifm_add(priv, media_entry.subtype); 4701 skip_ext_media:; 4702 } 4703 } 4704 } else { 4705 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) { 4706 media_entry = mlx5e_mode_table[i]; 4707 if (media_entry.subtype == 0) 4708 continue; 4709 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap) 4710 continue; 4711 /* check if this subtype was already added */ 4712 for (unsigned k = 0; k != i; k++) { 4713 if (media_entry.subtype == mlx5e_mode_table[k].subtype) 4714 goto skip_media; 4715 } 4716 mlx5e_ifm_add(priv, media_entry.subtype); 4717 4718 /* NOTE: 10G ER and LR shares the same entry */ 4719 if (media_entry.subtype == IFM_10G_ER) 4720 mlx5e_ifm_add(priv, IFM_10G_LR); 4721 skip_media:; 4722 } 4723 } 4724 4725 mlx5e_ifm_add(priv, IFM_AUTO); 4726 4727 /* Set autoselect by default */ 4728 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO | IFM_FDX | 4729 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE); 4730 4731 DEBUGNET_SET(ifp, mlx5_en); 4732 4733 ether_ifattach(ifp, dev_addr); 4734 4735 /* Register for VLAN events */ 4736 priv->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 4737 mlx5e_vlan_rx_add_vid, priv, EVENTHANDLER_PRI_FIRST); 4738 priv->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 4739 mlx5e_vlan_rx_kill_vid, priv, EVENTHANDLER_PRI_FIRST); 4740 4741 /* Register for VxLAN events */ 4742 priv->vxlan_start = EVENTHANDLER_REGISTER(vxlan_start, 4743 mlx5e_vxlan_start, priv, EVENTHANDLER_PRI_ANY); 4744 priv->vxlan_stop = EVENTHANDLER_REGISTER(vxlan_stop, 4745 mlx5e_vxlan_stop, priv, EVENTHANDLER_PRI_ANY); 4746 4747 /* Link is down by default */ 4748 if_link_state_change(ifp, LINK_STATE_DOWN); 4749 4750 mlx5e_enable_async_events(priv); 4751 4752 mlx5e_add_hw_stats(priv); 4753 4754 mlx5e_create_stats(&priv->stats.vport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4755 "vstats", mlx5e_vport_stats_desc, MLX5E_VPORT_STATS_NUM, 4756 priv->stats.vport.arg); 4757 4758 mlx5e_create_stats(&priv->stats.pport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4759 "pstats", mlx5e_pport_stats_desc, MLX5E_PPORT_STATS_NUM, 4760 priv->stats.pport.arg); 4761 4762 mlx5e_create_ethtool(priv); 4763 4764 mtx_lock(&priv->async_events_mtx); 4765 mlx5e_update_stats(priv); 4766 mtx_unlock(&priv->async_events_mtx); 4767 4768 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4769 OID_AUTO, "rx_clbr_done", CTLFLAG_RD, 4770 &priv->clbr_done, 0, 4771 "RX timestamps calibration state"); 4772 callout_init(&priv->tstmp_clbr, 1); 4773 /* Pull out the frequency of the clock in hz */ 4774 priv->cclk = (uint64_t)MLX5_CAP_GEN(mdev, device_frequency_khz) * 1000ULL; 4775 mlx5e_reset_calibration_callout(priv); 4776 4777 pa.pa_version = PFIL_VERSION; 4778 pa.pa_flags = PFIL_IN; 4779 pa.pa_type = PFIL_TYPE_ETHERNET; 4780 pa.pa_headname = if_name(ifp); 4781 priv->pfil = pfil_head_register(&pa); 4782 4783 PRIV_LOCK(priv); 4784 err = mlx5e_open_flow_rules(priv); 4785 if (err) { 4786 mlx5_en_err(ifp, 4787 "mlx5e_open_flow_rules() failed, %d (ignored)\n", err); 4788 } 4789 PRIV_UNLOCK(priv); 4790 4791 return (priv); 4792 4793 err_open_flow_tables: 4794 mlx5e_close_flow_tables(priv); 4795 4796 err_open_tirs: 4797 mlx5e_close_tirs(priv); 4798 4799 err_open_rqts: 4800 mlx5e_close_rqts(priv); 4801 4802 err_open_drop_rq: 4803 mlx5e_close_drop_rq(&priv->drop_rq); 4804 4805 err_tls_init: 4806 mlx5e_tls_cleanup(priv); 4807 4808 err_rl_init: 4809 mlx5e_rl_cleanup(priv); 4810 4811 err_create_mkey: 4812 mlx5_core_destroy_mkey(priv->mdev, &priv->mr); 4813 4814 err_dealloc_transport_domain: 4815 mlx5_dealloc_transport_domain(mdev, priv->tdn, 0); 4816 4817 err_dealloc_pd: 4818 mlx5_core_dealloc_pd(mdev, priv->pdn, 0); 4819 4820 err_free_wq: 4821 flush_workqueue(priv->wq); 4822 4823 err_free_sysctl: 4824 sysctl_ctx_free(&priv->sysctl_ctx); 4825 if (priv->sysctl_debug) 4826 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx); 4827 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors); 4828 4829 err_free_ifp: 4830 if_free(ifp); 4831 4832 err_free_priv: 4833 free(priv, M_MLX5EN); 4834 return (NULL); 4835 } 4836 4837 static void 4838 mlx5e_destroy_ifp(struct mlx5_core_dev *mdev, void *vpriv) 4839 { 4840 struct mlx5e_priv *priv = vpriv; 4841 if_t ifp = priv->ifp; 4842 4843 /* don't allow more IOCTLs */ 4844 priv->gone = 1; 4845 4846 /* XXX wait a bit to allow IOCTL handlers to complete */ 4847 pause("W", hz); 4848 4849 #ifdef RATELIMIT 4850 /* 4851 * The kernel can have reference(s) via the m_snd_tag's into 4852 * the ratelimit channels, and these must go away before 4853 * detaching: 4854 */ 4855 while (READ_ONCE(priv->rl.stats.tx_active_connections) != 0) { 4856 mlx5_en_err(priv->ifp, 4857 "Waiting for all ratelimit connections to terminate\n"); 4858 pause("W", hz); 4859 } 4860 #endif 4861 4862 #ifdef KERN_TLS 4863 /* wait for all TLS tags to get freed */ 4864 while (priv->tls.init != 0 && 4865 uma_zone_get_cur(priv->tls.zone) != 0) { 4866 mlx5_en_err(priv->ifp, 4867 "Waiting for all TLS connections to terminate\n"); 4868 pause("W", hz); 4869 } 4870 4871 /* wait for all TLS RX tags to get freed */ 4872 while (priv->tls_rx.init != 0 && 4873 uma_zone_get_cur(priv->tls_rx.zone) != 0) { 4874 mlx5_en_err(priv->ifp, 4875 "Waiting for all TLS RX connections to terminate\n"); 4876 pause("W", hz); 4877 } 4878 #endif 4879 /* wait for all unlimited send tags to complete */ 4880 mlx5e_priv_wait_for_completion(priv, mdev->priv.eq_table.num_comp_vectors); 4881 4882 /* stop watchdog timer */ 4883 callout_drain(&priv->watchdog); 4884 4885 callout_drain(&priv->tstmp_clbr); 4886 4887 if (priv->vlan_attach != NULL) 4888 EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach); 4889 if (priv->vlan_detach != NULL) 4890 EVENTHANDLER_DEREGISTER(vlan_unconfig, priv->vlan_detach); 4891 if (priv->vxlan_start != NULL) 4892 EVENTHANDLER_DEREGISTER(vxlan_start, priv->vxlan_start); 4893 if (priv->vxlan_stop != NULL) 4894 EVENTHANDLER_DEREGISTER(vxlan_stop, priv->vxlan_stop); 4895 4896 /* make sure device gets closed */ 4897 PRIV_LOCK(priv); 4898 mlx5e_close_locked(ifp); 4899 mlx5e_close_flow_rules(priv); 4900 PRIV_UNLOCK(priv); 4901 4902 /* deregister pfil */ 4903 if (priv->pfil != NULL) { 4904 pfil_head_unregister(priv->pfil); 4905 priv->pfil = NULL; 4906 } 4907 4908 /* unregister device */ 4909 ifmedia_removeall(&priv->media); 4910 ether_ifdetach(ifp); 4911 4912 mlx5e_tls_rx_cleanup(priv); 4913 mlx5e_close_flow_tables(priv); 4914 mlx5e_close_tirs(priv); 4915 mlx5e_close_rqts(priv); 4916 mlx5e_close_drop_rq(&priv->drop_rq); 4917 mlx5e_tls_cleanup(priv); 4918 mlx5e_rl_cleanup(priv); 4919 4920 /* destroy all remaining sysctl nodes */ 4921 sysctl_ctx_free(&priv->stats.vport.ctx); 4922 sysctl_ctx_free(&priv->stats.pport.ctx); 4923 if (priv->sysctl_debug) 4924 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx); 4925 sysctl_ctx_free(&priv->sysctl_ctx); 4926 4927 mlx5_core_destroy_mkey(priv->mdev, &priv->mr); 4928 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn, 0); 4929 mlx5_core_dealloc_pd(priv->mdev, priv->pdn, 0); 4930 mlx5e_disable_async_events(priv); 4931 flush_workqueue(priv->wq); 4932 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors); 4933 if_free(ifp); 4934 free(priv, M_MLX5EN); 4935 } 4936 4937 #ifdef DEBUGNET 4938 static void 4939 mlx5_en_debugnet_init(if_t dev, int *nrxr, int *ncl, int *clsize) 4940 { 4941 struct mlx5e_priv *priv = if_getsoftc(dev); 4942 4943 PRIV_LOCK(priv); 4944 *nrxr = priv->params.num_channels; 4945 *ncl = DEBUGNET_MAX_IN_FLIGHT; 4946 *clsize = MLX5E_MAX_RX_BYTES; 4947 PRIV_UNLOCK(priv); 4948 } 4949 4950 static void 4951 mlx5_en_debugnet_event(if_t dev, enum debugnet_ev event) 4952 { 4953 } 4954 4955 static int 4956 mlx5_en_debugnet_transmit(if_t dev, struct mbuf *m) 4957 { 4958 struct mlx5e_priv *priv = if_getsoftc(dev); 4959 struct mlx5e_sq *sq; 4960 int err; 4961 4962 if ((if_getdrvflags(dev) & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 4963 IFF_DRV_RUNNING || (priv->media_status_last & IFM_ACTIVE) == 0) 4964 return (ENOENT); 4965 4966 sq = &priv->channel[0].sq[0]; 4967 4968 if (sq->running == 0) { 4969 m_freem(m); 4970 return (ENOENT); 4971 } 4972 4973 if (mlx5e_sq_xmit(sq, &m) != 0) { 4974 m_freem(m); 4975 err = ENOBUFS; 4976 } else { 4977 err = 0; 4978 } 4979 4980 mlx5e_tx_notify_hw(sq, true); 4981 4982 return (err); 4983 } 4984 4985 static int 4986 mlx5_en_debugnet_poll(if_t dev, int count) 4987 { 4988 struct mlx5e_priv *priv = if_getsoftc(dev); 4989 4990 if ((if_getdrvflags(dev) & IFF_DRV_RUNNING) == 0 || 4991 (priv->media_status_last & IFM_ACTIVE) == 0) 4992 return (ENOENT); 4993 4994 mlx5_poll_interrupts(priv->mdev); 4995 4996 return (0); 4997 } 4998 #endif /* DEBUGNET */ 4999 5000 static void * 5001 mlx5e_get_ifp(void *vpriv) 5002 { 5003 struct mlx5e_priv *priv = vpriv; 5004 5005 return (priv->ifp); 5006 } 5007 5008 static struct mlx5_interface mlx5e_interface = { 5009 .add = mlx5e_create_ifp, 5010 .remove = mlx5e_destroy_ifp, 5011 .event = mlx5e_async_event, 5012 .protocol = MLX5_INTERFACE_PROTOCOL_ETH, 5013 .get_dev = mlx5e_get_ifp, 5014 }; 5015 5016 void 5017 mlx5e_init(void) 5018 { 5019 mlx5_register_interface(&mlx5e_interface); 5020 } 5021 5022 void 5023 mlx5e_cleanup(void) 5024 { 5025 mlx5_unregister_interface(&mlx5e_interface); 5026 } 5027 5028 module_init_order(mlx5e_init, SI_ORDER_SIXTH); 5029 module_exit_order(mlx5e_cleanup, SI_ORDER_SIXTH); 5030 5031 MODULE_DEPEND(mlx5en, linuxkpi, 1, 1, 1); 5032 MODULE_DEPEND(mlx5en, mlx5, 1, 1, 1); 5033 MODULE_VERSION(mlx5en, 1); 5034