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 * $FreeBSD$ 27 */ 28 29 #include "opt_kern_tls.h" 30 #include "opt_rss.h" 31 #include "opt_ratelimit.h" 32 33 #include <dev/mlx5/mlx5_en/en.h> 34 35 #include <sys/eventhandler.h> 36 #include <sys/sockio.h> 37 #include <machine/atomic.h> 38 39 #include <net/debugnet.h> 40 41 static int mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs); 42 static if_snd_tag_query_t mlx5e_ul_snd_tag_query; 43 static if_snd_tag_free_t mlx5e_ul_snd_tag_free; 44 45 struct mlx5e_channel_param { 46 struct mlx5e_rq_param rq; 47 struct mlx5e_sq_param sq; 48 struct mlx5e_cq_param rx_cq; 49 struct mlx5e_cq_param tx_cq; 50 }; 51 52 struct media { 53 u32 subtype; 54 u64 baudrate; 55 }; 56 57 static const struct media mlx5e_mode_table[MLX5E_LINK_SPEEDS_NUMBER] = 58 { 59 [MLX5E_1000BASE_CX_SGMII] = { 60 .subtype = IFM_1000_CX_SGMII, 61 .baudrate = IF_Mbps(1000ULL), 62 }, 63 [MLX5E_1000BASE_KX] = { 64 .subtype = IFM_1000_KX, 65 .baudrate = IF_Mbps(1000ULL), 66 }, 67 [MLX5E_10GBASE_CX4] = { 68 .subtype = IFM_10G_CX4, 69 .baudrate = IF_Gbps(10ULL), 70 }, 71 [MLX5E_10GBASE_KX4] = { 72 .subtype = IFM_10G_KX4, 73 .baudrate = IF_Gbps(10ULL), 74 }, 75 [MLX5E_10GBASE_KR] = { 76 .subtype = IFM_10G_KR, 77 .baudrate = IF_Gbps(10ULL), 78 }, 79 [MLX5E_20GBASE_KR2] = { 80 .subtype = IFM_20G_KR2, 81 .baudrate = IF_Gbps(20ULL), 82 }, 83 [MLX5E_40GBASE_CR4] = { 84 .subtype = IFM_40G_CR4, 85 .baudrate = IF_Gbps(40ULL), 86 }, 87 [MLX5E_40GBASE_KR4] = { 88 .subtype = IFM_40G_KR4, 89 .baudrate = IF_Gbps(40ULL), 90 }, 91 [MLX5E_56GBASE_R4] = { 92 .subtype = IFM_56G_R4, 93 .baudrate = IF_Gbps(56ULL), 94 }, 95 [MLX5E_10GBASE_CR] = { 96 .subtype = IFM_10G_CR1, 97 .baudrate = IF_Gbps(10ULL), 98 }, 99 [MLX5E_10GBASE_SR] = { 100 .subtype = IFM_10G_SR, 101 .baudrate = IF_Gbps(10ULL), 102 }, 103 [MLX5E_10GBASE_ER_LR] = { 104 .subtype = IFM_10G_ER, 105 .baudrate = IF_Gbps(10ULL), 106 }, 107 [MLX5E_40GBASE_SR4] = { 108 .subtype = IFM_40G_SR4, 109 .baudrate = IF_Gbps(40ULL), 110 }, 111 [MLX5E_40GBASE_LR4_ER4] = { 112 .subtype = IFM_40G_LR4, 113 .baudrate = IF_Gbps(40ULL), 114 }, 115 [MLX5E_100GBASE_CR4] = { 116 .subtype = IFM_100G_CR4, 117 .baudrate = IF_Gbps(100ULL), 118 }, 119 [MLX5E_100GBASE_SR4] = { 120 .subtype = IFM_100G_SR4, 121 .baudrate = IF_Gbps(100ULL), 122 }, 123 [MLX5E_100GBASE_KR4] = { 124 .subtype = IFM_100G_KR4, 125 .baudrate = IF_Gbps(100ULL), 126 }, 127 [MLX5E_100GBASE_LR4] = { 128 .subtype = IFM_100G_LR4, 129 .baudrate = IF_Gbps(100ULL), 130 }, 131 [MLX5E_100BASE_TX] = { 132 .subtype = IFM_100_TX, 133 .baudrate = IF_Mbps(100ULL), 134 }, 135 [MLX5E_1000BASE_T] = { 136 .subtype = IFM_1000_T, 137 .baudrate = IF_Mbps(1000ULL), 138 }, 139 [MLX5E_10GBASE_T] = { 140 .subtype = IFM_10G_T, 141 .baudrate = IF_Gbps(10ULL), 142 }, 143 [MLX5E_25GBASE_CR] = { 144 .subtype = IFM_25G_CR, 145 .baudrate = IF_Gbps(25ULL), 146 }, 147 [MLX5E_25GBASE_KR] = { 148 .subtype = IFM_25G_KR, 149 .baudrate = IF_Gbps(25ULL), 150 }, 151 [MLX5E_25GBASE_SR] = { 152 .subtype = IFM_25G_SR, 153 .baudrate = IF_Gbps(25ULL), 154 }, 155 [MLX5E_50GBASE_CR2] = { 156 .subtype = IFM_50G_CR2, 157 .baudrate = IF_Gbps(50ULL), 158 }, 159 [MLX5E_50GBASE_KR2] = { 160 .subtype = IFM_50G_KR2, 161 .baudrate = IF_Gbps(50ULL), 162 }, 163 [MLX5E_50GBASE_KR4] = { 164 .subtype = IFM_50G_KR4, 165 .baudrate = IF_Gbps(50ULL), 166 }, 167 }; 168 169 static const struct media mlx5e_ext_mode_table[MLX5E_EXT_LINK_SPEEDS_NUMBER][MLX5E_CABLE_TYPE_NUMBER] = 170 { 171 /**/ 172 [MLX5E_SGMII_100M][MLX5E_CABLE_TYPE_UNKNOWN] = { 173 .subtype = IFM_100_SGMII, 174 .baudrate = IF_Mbps(100), 175 }, 176 177 /**/ 178 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_UNKNOWN] = { 179 .subtype = IFM_1000_CX, 180 .baudrate = IF_Mbps(1000), 181 }, 182 [MLX5E_1000BASE_X_SGMII][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 183 .subtype = IFM_1000_SX, 184 .baudrate = IF_Mbps(1000), 185 }, 186 187 /**/ 188 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_UNKNOWN] = { 189 .subtype = IFM_5000_KR, 190 .baudrate = IF_Mbps(5000), 191 }, 192 [MLX5E_5GBASE_R][MLX5E_CABLE_TYPE_TWISTED_PAIR] = { 193 .subtype = IFM_5000_T, 194 .baudrate = IF_Mbps(5000), 195 }, 196 197 /**/ 198 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_UNKNOWN] = { 199 .subtype = IFM_10G_KR, 200 .baudrate = IF_Gbps(10ULL), 201 }, 202 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 203 .subtype = IFM_10G_CR1, 204 .baudrate = IF_Gbps(10ULL), 205 }, 206 [MLX5E_10GBASE_XFI_XAUI_1][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 207 .subtype = IFM_10G_SR, 208 .baudrate = IF_Gbps(10ULL), 209 }, 210 211 /**/ 212 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_UNKNOWN] = { 213 .subtype = IFM_40G_KR4, 214 .baudrate = IF_Gbps(40ULL), 215 }, 216 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 217 .subtype = IFM_40G_CR4, 218 .baudrate = IF_Gbps(40ULL), 219 }, 220 [MLX5E_40GBASE_XLAUI_4_XLPPI_4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 221 .subtype = IFM_40G_SR4, 222 .baudrate = IF_Gbps(40ULL), 223 }, 224 225 /**/ 226 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 227 .subtype = IFM_25G_KR, 228 .baudrate = IF_Gbps(25ULL), 229 }, 230 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 231 .subtype = IFM_25G_CR, 232 .baudrate = IF_Gbps(25ULL), 233 }, 234 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 235 .subtype = IFM_25G_SR, 236 .baudrate = IF_Gbps(25ULL), 237 }, 238 [MLX5E_25GAUI_1_25GBASE_CR_KR][MLX5E_CABLE_TYPE_TWISTED_PAIR] = { 239 .subtype = IFM_25G_T, 240 .baudrate = IF_Gbps(25ULL), 241 }, 242 243 /**/ 244 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 245 .subtype = IFM_50G_KR2, 246 .baudrate = IF_Gbps(50ULL), 247 }, 248 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 249 .subtype = IFM_50G_CR2, 250 .baudrate = IF_Gbps(50ULL), 251 }, 252 [MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 253 .subtype = IFM_50G_SR2, 254 .baudrate = IF_Gbps(50ULL), 255 }, 256 257 /**/ 258 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 259 .subtype = IFM_50G_KR_PAM4, 260 .baudrate = IF_Gbps(50ULL), 261 }, 262 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 263 .subtype = IFM_50G_CP, 264 .baudrate = IF_Gbps(50ULL), 265 }, 266 [MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 267 .subtype = IFM_50G_SR, 268 .baudrate = IF_Gbps(50ULL), 269 }, 270 271 /**/ 272 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 273 .subtype = IFM_100G_KR4, 274 .baudrate = IF_Gbps(100ULL), 275 }, 276 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 277 .subtype = IFM_100G_CR4, 278 .baudrate = IF_Gbps(100ULL), 279 }, 280 [MLX5E_CAUI_4_100GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 281 .subtype = IFM_100G_SR4, 282 .baudrate = IF_Gbps(100ULL), 283 }, 284 285 /**/ 286 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_UNKNOWN] = { 287 .subtype = IFM_100G_KR_PAM4, 288 .baudrate = IF_Gbps(100ULL), 289 }, 290 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 291 .subtype = IFM_100G_CR_PAM4, 292 .baudrate = IF_Gbps(100ULL), 293 }, 294 [MLX5E_100GAUI_1_100GBASE_CR_KR][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 295 .subtype = IFM_100G_SR2, /* XXX */ 296 .baudrate = IF_Gbps(100ULL), 297 }, 298 299 /**/ 300 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 301 .subtype = IFM_100G_KR4, 302 .baudrate = IF_Gbps(100ULL), 303 }, 304 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 305 .subtype = IFM_100G_CP2, 306 .baudrate = IF_Gbps(100ULL), 307 }, 308 [MLX5E_100GAUI_2_100GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 309 .subtype = IFM_100G_SR2, 310 .baudrate = IF_Gbps(100ULL), 311 }, 312 313 /**/ 314 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_UNKNOWN] = { 315 .subtype = IFM_200G_KR4_PAM4, /* XXX */ 316 .baudrate = IF_Gbps(200ULL), 317 }, 318 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 319 .subtype = IFM_200G_CR4_PAM4, /* XXX */ 320 .baudrate = IF_Gbps(200ULL), 321 }, 322 [MLX5E_200GAUI_2_200GBASE_CR2_KR2][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 323 .subtype = IFM_200G_SR4, /* XXX */ 324 .baudrate = IF_Gbps(200ULL), 325 }, 326 327 /**/ 328 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 329 .subtype = IFM_200G_KR4_PAM4, 330 .baudrate = IF_Gbps(200ULL), 331 }, 332 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_PASSIVE_COPPER] = { 333 .subtype = IFM_200G_CR4_PAM4, 334 .baudrate = IF_Gbps(200ULL), 335 }, 336 [MLX5E_200GAUI_4_200GBASE_CR4_KR4][MLX5E_CABLE_TYPE_OPTICAL_MODULE] = { 337 .subtype = IFM_200G_SR4, 338 .baudrate = IF_Gbps(200ULL), 339 }, 340 341 /**/ 342 [MLX5E_400GAUI_8][MLX5E_CABLE_TYPE_UNKNOWN] = { 343 .subtype = IFM_400G_LR8, /* XXX */ 344 .baudrate = IF_Gbps(400ULL), 345 }, 346 347 /**/ 348 [MLX5E_400GAUI_4_400GBASE_CR4_KR4][MLX5E_CABLE_TYPE_UNKNOWN] = { 349 .subtype = IFM_400G_LR8, /* XXX */ 350 .baudrate = IF_Gbps(400ULL), 351 }, 352 }; 353 354 static const struct if_snd_tag_sw mlx5e_ul_snd_tag_sw = { 355 .snd_tag_query = mlx5e_ul_snd_tag_query, 356 .snd_tag_free = mlx5e_ul_snd_tag_free, 357 .type = IF_SND_TAG_TYPE_UNLIMITED 358 }; 359 360 DEBUGNET_DEFINE(mlx5_en); 361 362 MALLOC_DEFINE(M_MLX5EN, "MLX5EN", "MLX5 Ethernet"); 363 364 static void 365 mlx5e_update_carrier(struct mlx5e_priv *priv) 366 { 367 struct mlx5_core_dev *mdev = priv->mdev; 368 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 369 u32 eth_proto_oper; 370 int error; 371 u8 i; 372 u8 cable_type; 373 u8 port_state; 374 u8 is_er_type; 375 bool ext; 376 struct media media_entry = {}; 377 378 port_state = mlx5_query_vport_state(mdev, 379 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0); 380 381 if (port_state == VPORT_STATE_UP) { 382 priv->media_status_last |= IFM_ACTIVE; 383 } else { 384 priv->media_status_last &= ~IFM_ACTIVE; 385 priv->media_active_last = IFM_ETHER; 386 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 387 return; 388 } 389 390 error = mlx5_query_port_ptys(mdev, out, sizeof(out), 391 MLX5_PTYS_EN, 1); 392 if (error) { 393 priv->media_active_last = IFM_ETHER; 394 priv->ifp->if_baudrate = 1; 395 mlx5_en_err(priv->ifp, "query port ptys failed: 0x%x\n", 396 error); 397 return; 398 } 399 400 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet); 401 eth_proto_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 402 eth_proto_oper); 403 404 i = ilog2(eth_proto_oper); 405 406 if (ext) { 407 error = mlx5_query_pddr_cable_type(mdev, 1, &cable_type); 408 if (error != 0) { 409 /* use fallback entry */ 410 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN]; 411 412 mlx5_en_err(priv->ifp, 413 "query port pddr failed: %d\n", error); 414 } else { 415 media_entry = mlx5e_ext_mode_table[i][cable_type]; 416 417 /* check if we should use fallback entry */ 418 if (media_entry.subtype == 0) 419 media_entry = mlx5e_ext_mode_table[i][MLX5E_CABLE_TYPE_UNKNOWN]; 420 } 421 } else { 422 media_entry = mlx5e_mode_table[i]; 423 } 424 425 if (media_entry.subtype == 0) { 426 mlx5_en_err(priv->ifp, 427 "Could not find operational media subtype\n"); 428 return; 429 } 430 431 switch (media_entry.subtype) { 432 case IFM_10G_ER: 433 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type); 434 if (error != 0) { 435 mlx5_en_err(priv->ifp, 436 "query port pddr failed: %d\n", error); 437 } 438 if (error != 0 || is_er_type == 0) 439 media_entry.subtype = IFM_10G_LR; 440 break; 441 case IFM_40G_LR4: 442 error = mlx5_query_pddr_range_info(mdev, 1, &is_er_type); 443 if (error != 0) { 444 mlx5_en_err(priv->ifp, 445 "query port pddr failed: %d\n", error); 446 } 447 if (error == 0 && is_er_type != 0) 448 media_entry.subtype = IFM_40G_ER4; 449 break; 450 } 451 priv->media_active_last = media_entry.subtype | IFM_ETHER | IFM_FDX; 452 priv->ifp->if_baudrate = media_entry.baudrate; 453 454 if_link_state_change(priv->ifp, LINK_STATE_UP); 455 } 456 457 static void 458 mlx5e_media_status(struct ifnet *dev, struct ifmediareq *ifmr) 459 { 460 struct mlx5e_priv *priv = dev->if_softc; 461 462 ifmr->ifm_status = priv->media_status_last; 463 ifmr->ifm_current = ifmr->ifm_active = priv->media_active_last | 464 (priv->params.rx_pauseframe_control ? IFM_ETH_RXPAUSE : 0) | 465 (priv->params.tx_pauseframe_control ? IFM_ETH_TXPAUSE : 0); 466 467 } 468 469 static u32 470 mlx5e_find_link_mode(u32 subtype, bool ext) 471 { 472 u32 link_mode = 0; 473 474 switch (subtype) { 475 case 0: 476 goto done; 477 case IFM_10G_LR: 478 subtype = IFM_10G_ER; 479 break; 480 case IFM_40G_ER4: 481 subtype = IFM_40G_LR4; 482 break; 483 default: 484 break; 485 } 486 487 if (ext) { 488 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) { 489 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) { 490 if (mlx5e_ext_mode_table[i][j].subtype == subtype) 491 link_mode |= MLX5E_PROT_MASK(i); 492 } 493 } 494 } else { 495 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) { 496 if (mlx5e_mode_table[i].subtype == subtype) 497 link_mode |= MLX5E_PROT_MASK(i); 498 } 499 } 500 done: 501 return (link_mode); 502 } 503 504 static int 505 mlx5e_set_port_pause_and_pfc(struct mlx5e_priv *priv) 506 { 507 return (mlx5_set_port_pause_and_pfc(priv->mdev, 1, 508 priv->params.rx_pauseframe_control, 509 priv->params.tx_pauseframe_control, 510 priv->params.rx_priority_flow_control, 511 priv->params.tx_priority_flow_control)); 512 } 513 514 static int 515 mlx5e_set_port_pfc(struct mlx5e_priv *priv) 516 { 517 int error; 518 519 if (priv->gone != 0) { 520 error = -ENXIO; 521 } else if (priv->params.rx_pauseframe_control || 522 priv->params.tx_pauseframe_control) { 523 mlx5_en_err(priv->ifp, 524 "Global pauseframes must be disabled before enabling PFC.\n"); 525 error = -EINVAL; 526 } else { 527 error = mlx5e_set_port_pause_and_pfc(priv); 528 } 529 return (error); 530 } 531 532 static int 533 mlx5e_media_change(struct ifnet *dev) 534 { 535 struct mlx5e_priv *priv = dev->if_softc; 536 struct mlx5_core_dev *mdev = priv->mdev; 537 u32 eth_proto_cap; 538 u32 link_mode; 539 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 540 int was_opened; 541 int locked; 542 int error; 543 bool ext; 544 545 locked = PRIV_LOCKED(priv); 546 if (!locked) 547 PRIV_LOCK(priv); 548 549 if (IFM_TYPE(priv->media.ifm_media) != IFM_ETHER) { 550 error = EINVAL; 551 goto done; 552 } 553 554 error = mlx5_query_port_ptys(mdev, out, sizeof(out), 555 MLX5_PTYS_EN, 1); 556 if (error != 0) { 557 mlx5_en_err(dev, "Query port media capability failed\n"); 558 goto done; 559 } 560 561 ext = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet); 562 link_mode = mlx5e_find_link_mode(IFM_SUBTYPE(priv->media.ifm_media), ext); 563 564 /* query supported capabilities */ 565 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 566 eth_proto_capability); 567 568 /* check for autoselect */ 569 if (IFM_SUBTYPE(priv->media.ifm_media) == IFM_AUTO) { 570 link_mode = eth_proto_cap; 571 if (link_mode == 0) { 572 mlx5_en_err(dev, "Port media capability is zero\n"); 573 error = EINVAL; 574 goto done; 575 } 576 } else { 577 link_mode = link_mode & eth_proto_cap; 578 if (link_mode == 0) { 579 mlx5_en_err(dev, "Not supported link mode requested\n"); 580 error = EINVAL; 581 goto done; 582 } 583 } 584 if (priv->media.ifm_media & (IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE)) { 585 /* check if PFC is enabled */ 586 if (priv->params.rx_priority_flow_control || 587 priv->params.tx_priority_flow_control) { 588 mlx5_en_err(dev, "PFC must be disabled before enabling global pauseframes.\n"); 589 error = EINVAL; 590 goto done; 591 } 592 } 593 /* update pauseframe control bits */ 594 priv->params.rx_pauseframe_control = 595 (priv->media.ifm_media & IFM_ETH_RXPAUSE) ? 1 : 0; 596 priv->params.tx_pauseframe_control = 597 (priv->media.ifm_media & IFM_ETH_TXPAUSE) ? 1 : 0; 598 599 /* check if device is opened */ 600 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 601 602 /* reconfigure the hardware */ 603 mlx5_set_port_status(mdev, MLX5_PORT_DOWN); 604 mlx5_set_port_proto(mdev, link_mode, MLX5_PTYS_EN, ext); 605 error = -mlx5e_set_port_pause_and_pfc(priv); 606 if (was_opened) 607 mlx5_set_port_status(mdev, MLX5_PORT_UP); 608 609 done: 610 if (!locked) 611 PRIV_UNLOCK(priv); 612 return (error); 613 } 614 615 static void 616 mlx5e_update_carrier_work(struct work_struct *work) 617 { 618 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, 619 update_carrier_work); 620 621 PRIV_LOCK(priv); 622 if (test_bit(MLX5E_STATE_OPENED, &priv->state)) 623 mlx5e_update_carrier(priv); 624 PRIV_UNLOCK(priv); 625 } 626 627 #define MLX5E_PCIE_PERF_GET_64(a,b,c,d,e,f) \ 628 s_debug->c = MLX5_GET64(mpcnt_reg, out, counter_set.f.c); 629 630 #define MLX5E_PCIE_PERF_GET_32(a,b,c,d,e,f) \ 631 s_debug->c = MLX5_GET(mpcnt_reg, out, counter_set.f.c); 632 633 static void 634 mlx5e_update_pcie_counters(struct mlx5e_priv *priv) 635 { 636 struct mlx5_core_dev *mdev = priv->mdev; 637 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug; 638 const unsigned sz = MLX5_ST_SZ_BYTES(mpcnt_reg); 639 void *out; 640 void *in; 641 int err; 642 643 /* allocate firmware request structures */ 644 in = mlx5_vzalloc(sz); 645 out = mlx5_vzalloc(sz); 646 if (in == NULL || out == NULL) 647 goto free_out; 648 649 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP); 650 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 651 if (err != 0) 652 goto free_out; 653 654 MLX5E_PCIE_PERFORMANCE_COUNTERS_64(MLX5E_PCIE_PERF_GET_64) 655 MLX5E_PCIE_PERFORMANCE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 656 657 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_TIMERS_AND_STATES_COUNTERS_GROUP); 658 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 659 if (err != 0) 660 goto free_out; 661 662 MLX5E_PCIE_TIMERS_AND_STATES_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 663 664 MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_LANE_COUNTERS_GROUP); 665 err = mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); 666 if (err != 0) 667 goto free_out; 668 669 MLX5E_PCIE_LANE_COUNTERS_32(MLX5E_PCIE_PERF_GET_32) 670 671 free_out: 672 /* free firmware request structures */ 673 kvfree(in); 674 kvfree(out); 675 } 676 677 /* 678 * This function reads the physical port counters from the firmware 679 * using a pre-defined layout defined by various MLX5E_PPORT_XXX() 680 * macros. The output is converted from big-endian 64-bit values into 681 * host endian ones and stored in the "priv->stats.pport" structure. 682 */ 683 static void 684 mlx5e_update_pport_counters(struct mlx5e_priv *priv) 685 { 686 struct mlx5_core_dev *mdev = priv->mdev; 687 struct mlx5e_pport_stats *s = &priv->stats.pport; 688 struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug; 689 u32 *in; 690 u32 *out; 691 const u64 *ptr; 692 unsigned sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 693 unsigned x; 694 unsigned y; 695 unsigned z; 696 697 /* allocate firmware request structures */ 698 in = mlx5_vzalloc(sz); 699 out = mlx5_vzalloc(sz); 700 if (in == NULL || out == NULL) 701 goto free_out; 702 703 /* 704 * Get pointer to the 64-bit counter set which is located at a 705 * fixed offset in the output firmware request structure: 706 */ 707 ptr = (const uint64_t *)MLX5_ADDR_OF(ppcnt_reg, out, counter_set); 708 709 MLX5_SET(ppcnt_reg, in, local_port, 1); 710 711 /* read IEEE802_3 counter group using predefined counter layout */ 712 MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP); 713 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 714 for (x = 0, y = MLX5E_PPORT_PER_PRIO_STATS_NUM; 715 x != MLX5E_PPORT_IEEE802_3_STATS_NUM; x++, y++) 716 s->arg[y] = be64toh(ptr[x]); 717 718 /* read RFC2819 counter group using predefined counter layout */ 719 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP); 720 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 721 for (x = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM; x++, y++) 722 s->arg[y] = be64toh(ptr[x]); 723 724 for (y = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM + 725 MLX5E_PPORT_RFC2819_STATS_DEBUG_NUM; x++, y++) 726 s_debug->arg[y] = be64toh(ptr[x]); 727 728 /* read RFC2863 counter group using predefined counter layout */ 729 MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP); 730 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 731 for (x = 0; x != MLX5E_PPORT_RFC2863_STATS_DEBUG_NUM; x++, y++) 732 s_debug->arg[y] = be64toh(ptr[x]); 733 734 /* read physical layer stats counter group using predefined counter layout */ 735 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP); 736 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 737 for (x = 0; x != MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG_NUM; x++, y++) 738 s_debug->arg[y] = be64toh(ptr[x]); 739 740 /* read Extended Ethernet counter group using predefined counter layout */ 741 MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP); 742 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 743 for (x = 0; x != MLX5E_PPORT_ETHERNET_EXTENDED_STATS_DEBUG_NUM; x++, y++) 744 s_debug->arg[y] = be64toh(ptr[x]); 745 746 /* read Extended Statistical Group */ 747 if (MLX5_CAP_GEN(mdev, pcam_reg) && 748 MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group) && 749 MLX5_CAP_PCAM_FEATURE(mdev, per_lane_error_counters)) { 750 /* read Extended Statistical counter group using predefined counter layout */ 751 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP); 752 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 753 754 for (x = 0; x != MLX5E_PPORT_STATISTICAL_DEBUG_NUM; x++, y++) 755 s_debug->arg[y] = be64toh(ptr[x]); 756 } 757 758 /* read PCIE counters */ 759 mlx5e_update_pcie_counters(priv); 760 761 /* read per-priority counters */ 762 MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP); 763 764 /* iterate all the priorities */ 765 for (y = z = 0; z != MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO; z++) { 766 MLX5_SET(ppcnt_reg, in, prio_tc, z); 767 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); 768 769 /* read per priority stats counter group using predefined counter layout */ 770 for (x = 0; x != (MLX5E_PPORT_PER_PRIO_STATS_NUM / 771 MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO); x++, y++) 772 s->arg[y] = be64toh(ptr[x]); 773 } 774 775 free_out: 776 /* free firmware request structures */ 777 kvfree(in); 778 kvfree(out); 779 } 780 781 static void 782 mlx5e_grp_vnic_env_update_stats(struct mlx5e_priv *priv) 783 { 784 u32 out[MLX5_ST_SZ_DW(query_vnic_env_out)] = {}; 785 u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {}; 786 787 if (!MLX5_CAP_GEN(priv->mdev, nic_receive_steering_discard)) 788 return; 789 790 MLX5_SET(query_vnic_env_in, in, opcode, 791 MLX5_CMD_OP_QUERY_VNIC_ENV); 792 MLX5_SET(query_vnic_env_in, in, op_mod, 0); 793 MLX5_SET(query_vnic_env_in, in, other_vport, 0); 794 795 if (mlx5_cmd_exec(priv->mdev, in, sizeof(in), out, sizeof(out)) != 0) 796 return; 797 798 priv->stats.vport.rx_steer_missed_packets = 799 MLX5_GET64(query_vnic_env_out, out, 800 vport_env.nic_receive_steering_discard); 801 } 802 803 /* 804 * This function is called regularly to collect all statistics 805 * counters from the firmware. The values can be viewed through the 806 * sysctl interface. Execution is serialized using the priv's global 807 * configuration lock. 808 */ 809 static void 810 mlx5e_update_stats_locked(struct mlx5e_priv *priv) 811 { 812 struct mlx5_core_dev *mdev = priv->mdev; 813 struct mlx5e_vport_stats *s = &priv->stats.vport; 814 struct mlx5e_sq_stats *sq_stats; 815 u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)]; 816 u32 *out; 817 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); 818 u64 tso_packets = 0; 819 u64 tso_bytes = 0; 820 u64 tx_queue_dropped = 0; 821 u64 tx_defragged = 0; 822 u64 tx_offload_none = 0; 823 u64 lro_packets = 0; 824 u64 lro_bytes = 0; 825 u64 sw_lro_queued = 0; 826 u64 sw_lro_flushed = 0; 827 u64 rx_csum_none = 0; 828 u64 rx_wqe_err = 0; 829 u64 rx_packets = 0; 830 u64 rx_bytes = 0; 831 u64 rx_decrypted_error = 0; 832 u64 rx_decrypted_ok = 0; 833 u32 rx_out_of_buffer = 0; 834 int error; 835 int i; 836 int j; 837 838 out = mlx5_vzalloc(outlen); 839 if (out == NULL) 840 goto free_out; 841 842 /* Collect firts the SW counters and then HW for consistency */ 843 for (i = 0; i < priv->params.num_channels; i++) { 844 struct mlx5e_channel *pch = priv->channel + i; 845 struct mlx5e_rq *rq = &pch->rq; 846 struct mlx5e_rq_stats *rq_stats = &pch->rq.stats; 847 848 /* collect stats from LRO */ 849 rq_stats->sw_lro_queued = rq->lro.lro_queued; 850 rq_stats->sw_lro_flushed = rq->lro.lro_flushed; 851 sw_lro_queued += rq_stats->sw_lro_queued; 852 sw_lro_flushed += rq_stats->sw_lro_flushed; 853 lro_packets += rq_stats->lro_packets; 854 lro_bytes += rq_stats->lro_bytes; 855 rx_csum_none += rq_stats->csum_none; 856 rx_wqe_err += rq_stats->wqe_err; 857 rx_packets += rq_stats->packets; 858 rx_bytes += rq_stats->bytes; 859 rx_decrypted_error += rq_stats->decrypted_error_packets; 860 rx_decrypted_ok += rq_stats->decrypted_ok_packets; 861 862 for (j = 0; j < priv->num_tc; j++) { 863 sq_stats = &pch->sq[j].stats; 864 865 tso_packets += sq_stats->tso_packets; 866 tso_bytes += sq_stats->tso_bytes; 867 tx_queue_dropped += sq_stats->dropped; 868 tx_queue_dropped += sq_stats->enobuf; 869 tx_defragged += sq_stats->defragged; 870 tx_offload_none += sq_stats->csum_offload_none; 871 } 872 } 873 874 #ifdef RATELIMIT 875 /* Collect statistics from all rate-limit queues */ 876 for (j = 0; j < priv->rl.param.tx_worker_threads_def; j++) { 877 struct mlx5e_rl_worker *rlw = priv->rl.workers + j; 878 879 for (i = 0; i < priv->rl.param.tx_channels_per_worker_def; i++) { 880 struct mlx5e_rl_channel *channel = rlw->channels + i; 881 struct mlx5e_sq *sq = channel->sq; 882 883 if (sq == NULL) 884 continue; 885 886 sq_stats = &sq->stats; 887 888 tso_packets += sq_stats->tso_packets; 889 tso_bytes += sq_stats->tso_bytes; 890 tx_queue_dropped += sq_stats->dropped; 891 tx_queue_dropped += sq_stats->enobuf; 892 tx_defragged += sq_stats->defragged; 893 tx_offload_none += sq_stats->csum_offload_none; 894 } 895 } 896 #endif 897 898 /* update counters */ 899 s->tso_packets = tso_packets; 900 s->tso_bytes = tso_bytes; 901 s->tx_queue_dropped = tx_queue_dropped; 902 s->tx_defragged = tx_defragged; 903 s->lro_packets = lro_packets; 904 s->lro_bytes = lro_bytes; 905 s->sw_lro_queued = sw_lro_queued; 906 s->sw_lro_flushed = sw_lro_flushed; 907 s->rx_csum_none = rx_csum_none; 908 s->rx_wqe_err = rx_wqe_err; 909 s->rx_packets = rx_packets; 910 s->rx_bytes = rx_bytes; 911 s->rx_decrypted_error_packets = rx_decrypted_error; 912 s->rx_decrypted_ok_packets = rx_decrypted_ok; 913 914 mlx5e_grp_vnic_env_update_stats(priv); 915 916 /* HW counters */ 917 memset(in, 0, sizeof(in)); 918 919 MLX5_SET(query_vport_counter_in, in, opcode, 920 MLX5_CMD_OP_QUERY_VPORT_COUNTER); 921 MLX5_SET(query_vport_counter_in, in, op_mod, 0); 922 MLX5_SET(query_vport_counter_in, in, other_vport, 0); 923 924 memset(out, 0, outlen); 925 926 /* get number of out-of-buffer drops first */ 927 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 && 928 mlx5_vport_query_out_of_rx_buffer(mdev, priv->counter_set_id, 929 &rx_out_of_buffer) == 0) { 930 s->rx_out_of_buffer = rx_out_of_buffer; 931 } 932 933 /* get port statistics */ 934 if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen) == 0) { 935 #define MLX5_GET_CTR(out, x) \ 936 MLX5_GET64(query_vport_counter_out, out, x) 937 938 s->rx_error_packets = 939 MLX5_GET_CTR(out, received_errors.packets); 940 s->rx_error_bytes = 941 MLX5_GET_CTR(out, received_errors.octets); 942 s->tx_error_packets = 943 MLX5_GET_CTR(out, transmit_errors.packets); 944 s->tx_error_bytes = 945 MLX5_GET_CTR(out, transmit_errors.octets); 946 947 s->rx_unicast_packets = 948 MLX5_GET_CTR(out, received_eth_unicast.packets); 949 s->rx_unicast_bytes = 950 MLX5_GET_CTR(out, received_eth_unicast.octets); 951 s->tx_unicast_packets = 952 MLX5_GET_CTR(out, transmitted_eth_unicast.packets); 953 s->tx_unicast_bytes = 954 MLX5_GET_CTR(out, transmitted_eth_unicast.octets); 955 956 s->rx_multicast_packets = 957 MLX5_GET_CTR(out, received_eth_multicast.packets); 958 s->rx_multicast_bytes = 959 MLX5_GET_CTR(out, received_eth_multicast.octets); 960 s->tx_multicast_packets = 961 MLX5_GET_CTR(out, transmitted_eth_multicast.packets); 962 s->tx_multicast_bytes = 963 MLX5_GET_CTR(out, transmitted_eth_multicast.octets); 964 965 s->rx_broadcast_packets = 966 MLX5_GET_CTR(out, received_eth_broadcast.packets); 967 s->rx_broadcast_bytes = 968 MLX5_GET_CTR(out, received_eth_broadcast.octets); 969 s->tx_broadcast_packets = 970 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets); 971 s->tx_broadcast_bytes = 972 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets); 973 974 s->tx_packets = s->tx_unicast_packets + 975 s->tx_multicast_packets + s->tx_broadcast_packets; 976 s->tx_bytes = s->tx_unicast_bytes + s->tx_multicast_bytes + 977 s->tx_broadcast_bytes; 978 979 /* Update calculated offload counters */ 980 s->tx_csum_offload = s->tx_packets - tx_offload_none; 981 s->rx_csum_good = s->rx_packets - s->rx_csum_none; 982 } 983 984 /* Get physical port counters */ 985 mlx5e_update_pport_counters(priv); 986 987 s->tx_jumbo_packets = 988 priv->stats.port_stats_debug.tx_stat_p1519to2047octets + 989 priv->stats.port_stats_debug.tx_stat_p2048to4095octets + 990 priv->stats.port_stats_debug.tx_stat_p4096to8191octets + 991 priv->stats.port_stats_debug.tx_stat_p8192to10239octets; 992 993 free_out: 994 kvfree(out); 995 996 /* Update diagnostics, if any */ 997 if (priv->params_ethtool.diag_pci_enable || 998 priv->params_ethtool.diag_general_enable) { 999 error = mlx5_core_get_diagnostics_full(mdev, 1000 priv->params_ethtool.diag_pci_enable ? &priv->params_pci : NULL, 1001 priv->params_ethtool.diag_general_enable ? &priv->params_general : NULL); 1002 if (error != 0) 1003 mlx5_en_err(priv->ifp, 1004 "Failed reading diagnostics: %d\n", error); 1005 } 1006 1007 /* Update FEC, if any */ 1008 error = mlx5e_fec_update(priv); 1009 if (error != 0 && error != EOPNOTSUPP) { 1010 mlx5_en_err(priv->ifp, 1011 "Updating FEC failed: %d\n", error); 1012 } 1013 1014 /* Update temperature, if any */ 1015 if (priv->params_ethtool.hw_num_temp != 0) { 1016 error = mlx5e_hw_temperature_update(priv); 1017 if (error != 0 && error != EOPNOTSUPP) { 1018 mlx5_en_err(priv->ifp, 1019 "Updating temperature failed: %d\n", error); 1020 } 1021 } 1022 } 1023 1024 static void 1025 mlx5e_update_stats_work(struct work_struct *work) 1026 { 1027 struct mlx5e_priv *priv; 1028 1029 priv = container_of(work, struct mlx5e_priv, update_stats_work); 1030 PRIV_LOCK(priv); 1031 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0 && 1032 !test_bit(MLX5_INTERFACE_STATE_TEARDOWN, &priv->mdev->intf_state)) 1033 mlx5e_update_stats_locked(priv); 1034 PRIV_UNLOCK(priv); 1035 } 1036 1037 static void 1038 mlx5e_update_stats(void *arg) 1039 { 1040 struct mlx5e_priv *priv = arg; 1041 1042 queue_work(priv->wq, &priv->update_stats_work); 1043 1044 callout_reset(&priv->watchdog, hz / 4, &mlx5e_update_stats, priv); 1045 } 1046 1047 static void 1048 mlx5e_async_event_sub(struct mlx5e_priv *priv, 1049 enum mlx5_dev_event event) 1050 { 1051 switch (event) { 1052 case MLX5_DEV_EVENT_PORT_UP: 1053 case MLX5_DEV_EVENT_PORT_DOWN: 1054 queue_work(priv->wq, &priv->update_carrier_work); 1055 break; 1056 1057 default: 1058 break; 1059 } 1060 } 1061 1062 static void 1063 mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, 1064 enum mlx5_dev_event event, unsigned long param) 1065 { 1066 struct mlx5e_priv *priv = vpriv; 1067 1068 mtx_lock(&priv->async_events_mtx); 1069 if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state)) 1070 mlx5e_async_event_sub(priv, event); 1071 mtx_unlock(&priv->async_events_mtx); 1072 } 1073 1074 static void 1075 mlx5e_enable_async_events(struct mlx5e_priv *priv) 1076 { 1077 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); 1078 } 1079 1080 static void 1081 mlx5e_disable_async_events(struct mlx5e_priv *priv) 1082 { 1083 mtx_lock(&priv->async_events_mtx); 1084 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state); 1085 mtx_unlock(&priv->async_events_mtx); 1086 } 1087 1088 static void mlx5e_calibration_callout(void *arg); 1089 static int mlx5e_calibration_duration = 20; 1090 static int mlx5e_fast_calibration = 1; 1091 static int mlx5e_normal_calibration = 30; 1092 1093 static SYSCTL_NODE(_hw_mlx5, OID_AUTO, calibr, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 1094 "MLX5 timestamp calibration parameters"); 1095 1096 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, duration, CTLFLAG_RWTUN, 1097 &mlx5e_calibration_duration, 0, 1098 "Duration of initial calibration"); 1099 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, fast, CTLFLAG_RWTUN, 1100 &mlx5e_fast_calibration, 0, 1101 "Recalibration interval during initial calibration"); 1102 SYSCTL_INT(_hw_mlx5_calibr, OID_AUTO, normal, CTLFLAG_RWTUN, 1103 &mlx5e_normal_calibration, 0, 1104 "Recalibration interval during normal operations"); 1105 1106 /* 1107 * Ignites the calibration process. 1108 */ 1109 static void 1110 mlx5e_reset_calibration_callout(struct mlx5e_priv *priv) 1111 { 1112 1113 if (priv->clbr_done == 0) 1114 mlx5e_calibration_callout(priv); 1115 else 1116 callout_reset_sbt_curcpu(&priv->tstmp_clbr, (priv->clbr_done < 1117 mlx5e_calibration_duration ? mlx5e_fast_calibration : 1118 mlx5e_normal_calibration) * SBT_1S, 0, 1119 mlx5e_calibration_callout, priv, C_DIRECT_EXEC); 1120 } 1121 1122 static uint64_t 1123 mlx5e_timespec2usec(const struct timespec *ts) 1124 { 1125 1126 return ((uint64_t)ts->tv_sec * 1000000000 + ts->tv_nsec); 1127 } 1128 1129 static uint64_t 1130 mlx5e_hw_clock(struct mlx5e_priv *priv) 1131 { 1132 struct mlx5_init_seg *iseg; 1133 uint32_t hw_h, hw_h1, hw_l; 1134 1135 iseg = priv->mdev->iseg; 1136 do { 1137 hw_h = ioread32be(&iseg->internal_timer_h); 1138 hw_l = ioread32be(&iseg->internal_timer_l); 1139 hw_h1 = ioread32be(&iseg->internal_timer_h); 1140 } while (hw_h1 != hw_h); 1141 return (((uint64_t)hw_h << 32) | hw_l); 1142 } 1143 1144 /* 1145 * The calibration callout, it runs either in the context of the 1146 * thread which enables calibration, or in callout. It takes the 1147 * snapshot of system and adapter clocks, then advances the pointers to 1148 * the calibration point to allow rx path to read the consistent data 1149 * lockless. 1150 */ 1151 static void 1152 mlx5e_calibration_callout(void *arg) 1153 { 1154 struct mlx5e_priv *priv; 1155 struct mlx5e_clbr_point *next, *curr; 1156 struct timespec ts; 1157 int clbr_curr_next; 1158 1159 priv = arg; 1160 curr = &priv->clbr_points[priv->clbr_curr]; 1161 clbr_curr_next = priv->clbr_curr + 1; 1162 if (clbr_curr_next >= nitems(priv->clbr_points)) 1163 clbr_curr_next = 0; 1164 next = &priv->clbr_points[clbr_curr_next]; 1165 1166 next->base_prev = curr->base_curr; 1167 next->clbr_hw_prev = curr->clbr_hw_curr; 1168 1169 next->clbr_hw_curr = mlx5e_hw_clock(priv); 1170 if (((next->clbr_hw_curr - curr->clbr_hw_curr) >> MLX5E_TSTMP_PREC) == 1171 0) { 1172 if (priv->clbr_done != 0) { 1173 mlx5_en_err(priv->ifp, 1174 "HW failed tstmp frozen %#jx %#jx, disabling\n", 1175 next->clbr_hw_curr, curr->clbr_hw_prev); 1176 priv->clbr_done = 0; 1177 } 1178 atomic_store_rel_int(&curr->clbr_gen, 0); 1179 return; 1180 } 1181 1182 nanouptime(&ts); 1183 next->base_curr = mlx5e_timespec2usec(&ts); 1184 1185 curr->clbr_gen = 0; 1186 atomic_thread_fence_rel(); 1187 priv->clbr_curr = clbr_curr_next; 1188 atomic_store_rel_int(&next->clbr_gen, ++(priv->clbr_gen)); 1189 1190 if (priv->clbr_done < mlx5e_calibration_duration) 1191 priv->clbr_done++; 1192 mlx5e_reset_calibration_callout(priv); 1193 } 1194 1195 static const char *mlx5e_rq_stats_desc[] = { 1196 MLX5E_RQ_STATS(MLX5E_STATS_DESC) 1197 }; 1198 1199 static int 1200 mlx5e_create_rq(struct mlx5e_channel *c, 1201 struct mlx5e_rq_param *param, 1202 struct mlx5e_rq *rq) 1203 { 1204 struct mlx5e_priv *priv = c->priv; 1205 struct mlx5_core_dev *mdev = priv->mdev; 1206 char buffer[16]; 1207 void *rqc = param->rqc; 1208 void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); 1209 int wq_sz; 1210 int err; 1211 int i; 1212 u32 nsegs, wqe_sz; 1213 1214 err = mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs); 1215 if (err != 0) 1216 goto done; 1217 1218 /* Create DMA descriptor TAG */ 1219 if ((err = -bus_dma_tag_create( 1220 bus_get_dma_tag(mdev->pdev->dev.bsddev), 1221 1, /* any alignment */ 1222 0, /* no boundary */ 1223 BUS_SPACE_MAXADDR, /* lowaddr */ 1224 BUS_SPACE_MAXADDR, /* highaddr */ 1225 NULL, NULL, /* filter, filterarg */ 1226 nsegs * MLX5E_MAX_RX_BYTES, /* maxsize */ 1227 nsegs, /* nsegments */ 1228 nsegs * MLX5E_MAX_RX_BYTES, /* maxsegsize */ 1229 0, /* flags */ 1230 NULL, NULL, /* lockfunc, lockfuncarg */ 1231 &rq->dma_tag))) 1232 goto done; 1233 1234 err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, 1235 &rq->wq_ctrl); 1236 if (err) 1237 goto err_free_dma_tag; 1238 1239 rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; 1240 1241 err = mlx5e_get_wqe_sz(priv, &rq->wqe_sz, &rq->nsegs); 1242 if (err != 0) 1243 goto err_rq_wq_destroy; 1244 1245 wq_sz = mlx5_wq_ll_get_size(&rq->wq); 1246 1247 err = -tcp_lro_init_args(&rq->lro, priv->ifp, TCP_LRO_ENTRIES, wq_sz); 1248 if (err) 1249 goto err_rq_wq_destroy; 1250 1251 rq->mbuf = malloc_domainset(wq_sz * sizeof(rq->mbuf[0]), M_MLX5EN, 1252 mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO); 1253 for (i = 0; i != wq_sz; i++) { 1254 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); 1255 int j; 1256 1257 err = -bus_dmamap_create(rq->dma_tag, 0, &rq->mbuf[i].dma_map); 1258 if (err != 0) { 1259 while (i--) 1260 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map); 1261 goto err_rq_mbuf_free; 1262 } 1263 1264 /* set value for constant fields */ 1265 for (j = 0; j < rq->nsegs; j++) 1266 wqe->data[j].lkey = cpu_to_be32(priv->mr.key); 1267 } 1268 1269 INIT_WORK(&rq->dim.work, mlx5e_dim_work); 1270 if (priv->params.rx_cq_moderation_mode < 2) { 1271 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 1272 } else { 1273 void *cqc = container_of(param, 1274 struct mlx5e_channel_param, rq)->rx_cq.cqc; 1275 1276 switch (MLX5_GET(cqc, cqc, cq_period_mode)) { 1277 case MLX5_CQ_PERIOD_MODE_START_FROM_EQE: 1278 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE; 1279 break; 1280 case MLX5_CQ_PERIOD_MODE_START_FROM_CQE: 1281 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE; 1282 break; 1283 default: 1284 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 1285 break; 1286 } 1287 } 1288 1289 rq->ifp = priv->ifp; 1290 rq->channel = c; 1291 rq->ix = c->ix; 1292 1293 snprintf(buffer, sizeof(buffer), "rxstat%d", c->ix); 1294 mlx5e_create_stats(&rq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 1295 buffer, mlx5e_rq_stats_desc, MLX5E_RQ_STATS_NUM, 1296 rq->stats.arg); 1297 return (0); 1298 1299 err_rq_mbuf_free: 1300 free(rq->mbuf, M_MLX5EN); 1301 tcp_lro_free(&rq->lro); 1302 err_rq_wq_destroy: 1303 mlx5_wq_destroy(&rq->wq_ctrl); 1304 err_free_dma_tag: 1305 bus_dma_tag_destroy(rq->dma_tag); 1306 done: 1307 return (err); 1308 } 1309 1310 static void 1311 mlx5e_destroy_rq(struct mlx5e_rq *rq) 1312 { 1313 int wq_sz; 1314 int i; 1315 1316 /* destroy all sysctl nodes */ 1317 sysctl_ctx_free(&rq->stats.ctx); 1318 1319 /* free leftover LRO packets, if any */ 1320 tcp_lro_free(&rq->lro); 1321 1322 wq_sz = mlx5_wq_ll_get_size(&rq->wq); 1323 for (i = 0; i != wq_sz; i++) { 1324 if (rq->mbuf[i].mbuf != NULL) { 1325 bus_dmamap_unload(rq->dma_tag, rq->mbuf[i].dma_map); 1326 m_freem(rq->mbuf[i].mbuf); 1327 } 1328 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map); 1329 } 1330 free(rq->mbuf, M_MLX5EN); 1331 mlx5_wq_destroy(&rq->wq_ctrl); 1332 bus_dma_tag_destroy(rq->dma_tag); 1333 } 1334 1335 static int 1336 mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) 1337 { 1338 struct mlx5e_channel *c = rq->channel; 1339 struct mlx5e_priv *priv = c->priv; 1340 struct mlx5_core_dev *mdev = priv->mdev; 1341 void *in; 1342 void *rqc; 1343 void *wq; 1344 int inlen; 1345 int err; 1346 u8 ts_format; 1347 1348 inlen = MLX5_ST_SZ_BYTES(create_rq_in) + 1349 sizeof(u64) * rq->wq_ctrl.buf.npages; 1350 in = mlx5_vzalloc(inlen); 1351 if (in == NULL) 1352 return (-ENOMEM); 1353 1354 ts_format = mlx5_get_rq_default_ts(mdev); 1355 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); 1356 wq = MLX5_ADDR_OF(rqc, rqc, wq); 1357 1358 memcpy(rqc, param->rqc, sizeof(param->rqc)); 1359 1360 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); 1361 MLX5_SET(rqc, rqc, ts_format, ts_format); 1362 MLX5_SET(rqc, rqc, flush_in_error_en, 1); 1363 if (priv->counter_set_id >= 0) 1364 MLX5_SET(rqc, rqc, counter_set_id, priv->counter_set_id); 1365 MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - 1366 MLX5_ADAPTER_PAGE_SHIFT); 1367 MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); 1368 1369 mlx5_fill_page_array(&rq->wq_ctrl.buf, 1370 (__be64 *) MLX5_ADDR_OF(wq, wq, pas)); 1371 1372 err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); 1373 1374 kvfree(in); 1375 1376 return (err); 1377 } 1378 1379 static int 1380 mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state) 1381 { 1382 struct mlx5e_channel *c = rq->channel; 1383 struct mlx5e_priv *priv = c->priv; 1384 struct mlx5_core_dev *mdev = priv->mdev; 1385 1386 void *in; 1387 void *rqc; 1388 int inlen; 1389 int err; 1390 1391 inlen = MLX5_ST_SZ_BYTES(modify_rq_in); 1392 in = mlx5_vzalloc(inlen); 1393 if (in == NULL) 1394 return (-ENOMEM); 1395 1396 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); 1397 1398 MLX5_SET(modify_rq_in, in, rqn, rq->rqn); 1399 MLX5_SET(modify_rq_in, in, rq_state, curr_state); 1400 MLX5_SET(rqc, rqc, state, next_state); 1401 1402 err = mlx5_core_modify_rq(mdev, in, inlen); 1403 1404 kvfree(in); 1405 1406 return (err); 1407 } 1408 1409 static void 1410 mlx5e_disable_rq(struct mlx5e_rq *rq) 1411 { 1412 struct mlx5e_channel *c = rq->channel; 1413 struct mlx5e_priv *priv = c->priv; 1414 struct mlx5_core_dev *mdev = priv->mdev; 1415 1416 mlx5_core_destroy_rq(mdev, rq->rqn); 1417 } 1418 1419 static int 1420 mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq) 1421 { 1422 struct mlx5e_channel *c = rq->channel; 1423 struct mlx5e_priv *priv = c->priv; 1424 struct mlx5_wq_ll *wq = &rq->wq; 1425 int i; 1426 1427 for (i = 0; i < 1000; i++) { 1428 if (wq->cur_sz >= priv->params.min_rx_wqes) 1429 return (0); 1430 1431 msleep(4); 1432 } 1433 return (-ETIMEDOUT); 1434 } 1435 1436 static int 1437 mlx5e_open_rq(struct mlx5e_channel *c, 1438 struct mlx5e_rq_param *param, 1439 struct mlx5e_rq *rq) 1440 { 1441 int err; 1442 1443 err = mlx5e_create_rq(c, param, rq); 1444 if (err) 1445 return (err); 1446 1447 /* set CQN in RQ parameters */ 1448 MLX5_SET(rqc, param->rqc, cqn, c->rq.cq.mcq.cqn); 1449 1450 err = mlx5e_enable_rq(rq, param); 1451 if (err) 1452 goto err_destroy_rq; 1453 1454 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 1455 if (err) 1456 goto err_disable_rq; 1457 1458 c->rq.enabled = 1; 1459 1460 return (0); 1461 1462 err_disable_rq: 1463 mlx5e_disable_rq(rq); 1464 err_destroy_rq: 1465 mlx5e_destroy_rq(rq); 1466 1467 return (err); 1468 } 1469 1470 static void 1471 mlx5e_close_rq(struct mlx5e_rq *rq) 1472 { 1473 mtx_lock(&rq->mtx); 1474 rq->enabled = 0; 1475 callout_stop(&rq->watchdog); 1476 mtx_unlock(&rq->mtx); 1477 1478 mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 1479 } 1480 1481 static void 1482 mlx5e_close_rq_wait(struct mlx5e_rq *rq) 1483 { 1484 1485 mlx5e_disable_rq(rq); 1486 mlx5e_close_cq(&rq->cq); 1487 cancel_work_sync(&rq->dim.work); 1488 mlx5e_destroy_rq(rq); 1489 } 1490 1491 /* 1492 * What is a drop RQ and why is it needed? 1493 * 1494 * The RSS indirection table, also called the RQT, selects the 1495 * destination RQ based on the receive queue number, RQN. The RQT is 1496 * frequently referred to by flow steering rules to distribute traffic 1497 * among multiple RQs. The problem is that the RQs cannot be destroyed 1498 * before the RQT referring them is destroyed too. Further, TLS RX 1499 * rules may still be referring to the RQT even if the link went 1500 * down. Because there is no magic RQN for dropping packets, we create 1501 * a dummy RQ, also called drop RQ, which sole purpose is to drop all 1502 * received packets. When the link goes down this RQN is filled in all 1503 * RQT entries, of the main RQT, so the real RQs which are about to be 1504 * destroyed can be released and the TLS RX rules can be sustained. 1505 */ 1506 static void 1507 mlx5e_open_drop_rq_comp(struct mlx5_core_cq *mcq __unused, struct mlx5_eqe *eqe __unused) 1508 { 1509 } 1510 1511 static int 1512 mlx5e_open_drop_rq(struct mlx5e_priv *priv, 1513 struct mlx5e_rq *drop_rq) 1514 { 1515 struct mlx5e_cq_param param_cq = {}; 1516 struct mlx5e_rq_param param_rq = {}; 1517 void *rqc_wq = MLX5_ADDR_OF(rqc, param_rq.rqc, wq); 1518 int err; 1519 1520 /* set channel pointer */ 1521 drop_rq->channel = priv->channel; 1522 1523 /* set basic CQ parameters needed */ 1524 MLX5_SET(cqc, param_cq.cqc, log_cq_size, 0); 1525 MLX5_SET(cqc, param_cq.cqc, uar_page, priv->mdev->priv.uar->index); 1526 1527 /* open receive completion queue */ 1528 err = mlx5e_open_cq(priv, ¶m_cq, &drop_rq->cq, 1529 &mlx5e_open_drop_rq_comp, 0); 1530 if (err) 1531 goto err_done; 1532 1533 /* set basic WQ parameters needed */ 1534 MLX5_SET(wq, rqc_wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); 1535 MLX5_SET(wq, rqc_wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); 1536 MLX5_SET(wq, rqc_wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) + sizeof(struct mlx5_wqe_data_seg))); 1537 MLX5_SET(wq, rqc_wq, log_wq_sz, 0); 1538 MLX5_SET(wq, rqc_wq, pd, priv->pdn); 1539 1540 param_rq.wq.linear = 1; 1541 1542 err = mlx5_wq_ll_create(priv->mdev, ¶m_rq.wq, rqc_wq, &drop_rq->wq, 1543 &drop_rq->wq_ctrl); 1544 if (err) 1545 goto err_close_cq; 1546 1547 /* set CQN in RQ parameters */ 1548 MLX5_SET(rqc, param_rq.rqc, cqn, drop_rq->cq.mcq.cqn); 1549 1550 err = mlx5e_enable_rq(drop_rq, ¶m_rq); 1551 if (err) 1552 goto err_wq_destroy; 1553 1554 err = mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 1555 if (err) 1556 goto err_disable_rq; 1557 1558 return (err); 1559 1560 err_disable_rq: 1561 mlx5e_disable_rq(drop_rq); 1562 err_wq_destroy: 1563 mlx5_wq_destroy(&drop_rq->wq_ctrl); 1564 err_close_cq: 1565 mlx5e_close_cq(&drop_rq->cq); 1566 err_done: 1567 return (err); 1568 } 1569 1570 static void 1571 mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq) 1572 { 1573 mlx5e_modify_rq(drop_rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 1574 mlx5e_disable_rq(drop_rq); 1575 mlx5_wq_destroy(&drop_rq->wq_ctrl); 1576 mlx5e_close_cq(&drop_rq->cq); 1577 } 1578 1579 void 1580 mlx5e_free_sq_db(struct mlx5e_sq *sq) 1581 { 1582 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); 1583 int x; 1584 1585 for (x = 0; x != wq_sz; x++) { 1586 if (sq->mbuf[x].mbuf != NULL) { 1587 bus_dmamap_unload(sq->dma_tag, sq->mbuf[x].dma_map); 1588 m_freem(sq->mbuf[x].mbuf); 1589 } 1590 if (sq->mbuf[x].mst != NULL) { 1591 m_snd_tag_rele(sq->mbuf[x].mst); 1592 sq->mbuf[x].mst = NULL; 1593 } 1594 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map); 1595 } 1596 free(sq->mbuf, M_MLX5EN); 1597 } 1598 1599 int 1600 mlx5e_alloc_sq_db(struct mlx5e_sq *sq) 1601 { 1602 int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); 1603 int err; 1604 int x; 1605 1606 sq->mbuf = malloc_domainset(wq_sz * sizeof(sq->mbuf[0]), M_MLX5EN, 1607 mlx5_dev_domainset(sq->priv->mdev), M_WAITOK | M_ZERO); 1608 1609 /* Create DMA descriptor MAPs */ 1610 for (x = 0; x != wq_sz; x++) { 1611 err = -bus_dmamap_create(sq->dma_tag, 0, &sq->mbuf[x].dma_map); 1612 if (err != 0) { 1613 while (x--) 1614 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map); 1615 free(sq->mbuf, M_MLX5EN); 1616 return (err); 1617 } 1618 } 1619 return (0); 1620 } 1621 1622 static const char *mlx5e_sq_stats_desc[] = { 1623 MLX5E_SQ_STATS(MLX5E_STATS_DESC) 1624 }; 1625 1626 void 1627 mlx5e_update_sq_inline(struct mlx5e_sq *sq) 1628 { 1629 sq->max_inline = sq->priv->params.tx_max_inline; 1630 sq->min_inline_mode = sq->priv->params.tx_min_inline_mode; 1631 1632 /* 1633 * Check if trust state is DSCP or if inline mode is NONE which 1634 * indicates CX-5 or newer hardware. 1635 */ 1636 if (sq->priv->params_ethtool.trust_state != MLX5_QPTS_TRUST_PCP || 1637 sq->min_inline_mode == MLX5_INLINE_MODE_NONE) { 1638 if (MLX5_CAP_ETH(sq->priv->mdev, wqe_vlan_insert)) 1639 sq->min_insert_caps = MLX5E_INSERT_VLAN | MLX5E_INSERT_NON_VLAN; 1640 else 1641 sq->min_insert_caps = MLX5E_INSERT_NON_VLAN; 1642 } else { 1643 sq->min_insert_caps = 0; 1644 } 1645 } 1646 1647 static void 1648 mlx5e_refresh_sq_inline_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c) 1649 { 1650 int i; 1651 1652 for (i = 0; i != priv->num_tc; i++) { 1653 mtx_lock(&c->sq[i].lock); 1654 mlx5e_update_sq_inline(&c->sq[i]); 1655 mtx_unlock(&c->sq[i].lock); 1656 } 1657 } 1658 1659 void 1660 mlx5e_refresh_sq_inline(struct mlx5e_priv *priv) 1661 { 1662 int i; 1663 1664 /* check if channels are closed */ 1665 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 1666 return; 1667 1668 for (i = 0; i < priv->params.num_channels; i++) 1669 mlx5e_refresh_sq_inline_sub(priv, &priv->channel[i]); 1670 } 1671 1672 static int 1673 mlx5e_create_sq(struct mlx5e_channel *c, 1674 int tc, 1675 struct mlx5e_sq_param *param, 1676 struct mlx5e_sq *sq) 1677 { 1678 struct mlx5e_priv *priv = c->priv; 1679 struct mlx5_core_dev *mdev = priv->mdev; 1680 char buffer[16]; 1681 void *sqc = param->sqc; 1682 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq); 1683 int err; 1684 1685 /* Create DMA descriptor TAG */ 1686 if ((err = -bus_dma_tag_create( 1687 bus_get_dma_tag(mdev->pdev->dev.bsddev), 1688 1, /* any alignment */ 1689 0, /* no boundary */ 1690 BUS_SPACE_MAXADDR, /* lowaddr */ 1691 BUS_SPACE_MAXADDR, /* highaddr */ 1692 NULL, NULL, /* filter, filterarg */ 1693 MLX5E_MAX_TX_PAYLOAD_SIZE, /* maxsize */ 1694 MLX5E_MAX_TX_MBUF_FRAGS, /* nsegments */ 1695 MLX5E_MAX_TX_MBUF_SIZE, /* maxsegsize */ 1696 0, /* flags */ 1697 NULL, NULL, /* lockfunc, lockfuncarg */ 1698 &sq->dma_tag))) 1699 goto done; 1700 1701 sq->mkey_be = cpu_to_be32(priv->mr.key); 1702 sq->ifp = priv->ifp; 1703 sq->priv = priv; 1704 sq->tc = tc; 1705 1706 err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, 1707 &sq->wq_ctrl); 1708 if (err) 1709 goto err_free_dma_tag; 1710 1711 sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; 1712 1713 err = mlx5e_alloc_sq_db(sq); 1714 if (err) 1715 goto err_sq_wq_destroy; 1716 1717 mlx5e_update_sq_inline(sq); 1718 1719 snprintf(buffer, sizeof(buffer), "txstat%dtc%d", c->ix, tc); 1720 mlx5e_create_stats(&sq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 1721 buffer, mlx5e_sq_stats_desc, MLX5E_SQ_STATS_NUM, 1722 sq->stats.arg); 1723 1724 return (0); 1725 1726 err_sq_wq_destroy: 1727 mlx5_wq_destroy(&sq->wq_ctrl); 1728 1729 err_free_dma_tag: 1730 bus_dma_tag_destroy(sq->dma_tag); 1731 done: 1732 return (err); 1733 } 1734 1735 static void 1736 mlx5e_destroy_sq(struct mlx5e_sq *sq) 1737 { 1738 /* destroy all sysctl nodes */ 1739 sysctl_ctx_free(&sq->stats.ctx); 1740 1741 mlx5e_free_sq_db(sq); 1742 mlx5_wq_destroy(&sq->wq_ctrl); 1743 bus_dma_tag_destroy(sq->dma_tag); 1744 } 1745 1746 int 1747 mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param, 1748 const struct mlx5_sq_bfreg *bfreg, int tis_num) 1749 { 1750 void *in; 1751 void *sqc; 1752 void *wq; 1753 int inlen; 1754 int err; 1755 u8 ts_format; 1756 1757 inlen = MLX5_ST_SZ_BYTES(create_sq_in) + 1758 sizeof(u64) * sq->wq_ctrl.buf.npages; 1759 in = mlx5_vzalloc(inlen); 1760 if (in == NULL) 1761 return (-ENOMEM); 1762 1763 sq->uar_map = bfreg->map; 1764 1765 ts_format = mlx5_get_sq_default_ts(sq->priv->mdev); 1766 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); 1767 wq = MLX5_ADDR_OF(sqc, sqc, wq); 1768 1769 memcpy(sqc, param->sqc, sizeof(param->sqc)); 1770 1771 MLX5_SET(sqc, sqc, tis_num_0, tis_num); 1772 MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn); 1773 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); 1774 MLX5_SET(sqc, sqc, ts_format, ts_format); 1775 MLX5_SET(sqc, sqc, tis_lst_sz, 1); 1776 MLX5_SET(sqc, sqc, flush_in_error_en, 1); 1777 MLX5_SET(sqc, sqc, allow_swp, 1); 1778 1779 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); 1780 MLX5_SET(wq, wq, uar_page, bfreg->index); 1781 MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift - 1782 MLX5_ADAPTER_PAGE_SHIFT); 1783 MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma); 1784 1785 mlx5_fill_page_array(&sq->wq_ctrl.buf, 1786 (__be64 *) MLX5_ADDR_OF(wq, wq, pas)); 1787 1788 err = mlx5_core_create_sq(sq->priv->mdev, in, inlen, &sq->sqn); 1789 1790 kvfree(in); 1791 1792 return (err); 1793 } 1794 1795 int 1796 mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state) 1797 { 1798 void *in; 1799 void *sqc; 1800 int inlen; 1801 int err; 1802 1803 inlen = MLX5_ST_SZ_BYTES(modify_sq_in); 1804 in = mlx5_vzalloc(inlen); 1805 if (in == NULL) 1806 return (-ENOMEM); 1807 1808 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); 1809 1810 MLX5_SET(modify_sq_in, in, sqn, sq->sqn); 1811 MLX5_SET(modify_sq_in, in, sq_state, curr_state); 1812 MLX5_SET(sqc, sqc, state, next_state); 1813 1814 err = mlx5_core_modify_sq(sq->priv->mdev, in, inlen); 1815 1816 kvfree(in); 1817 1818 return (err); 1819 } 1820 1821 void 1822 mlx5e_disable_sq(struct mlx5e_sq *sq) 1823 { 1824 1825 mlx5_core_destroy_sq(sq->priv->mdev, sq->sqn); 1826 } 1827 1828 static int 1829 mlx5e_open_sq(struct mlx5e_channel *c, 1830 int tc, 1831 struct mlx5e_sq_param *param, 1832 struct mlx5e_sq *sq) 1833 { 1834 int err; 1835 1836 sq->cev_factor = c->priv->params_ethtool.tx_completion_fact; 1837 1838 /* ensure the TX completion event factor is not zero */ 1839 if (sq->cev_factor == 0) 1840 sq->cev_factor = 1; 1841 1842 err = mlx5e_create_sq(c, tc, param, sq); 1843 if (err) 1844 return (err); 1845 1846 err = mlx5e_enable_sq(sq, param, &c->bfreg, c->priv->tisn[tc]); 1847 if (err) 1848 goto err_destroy_sq; 1849 1850 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY); 1851 if (err) 1852 goto err_disable_sq; 1853 1854 WRITE_ONCE(sq->running, 1); 1855 1856 return (0); 1857 1858 err_disable_sq: 1859 mlx5e_disable_sq(sq); 1860 err_destroy_sq: 1861 mlx5e_destroy_sq(sq); 1862 1863 return (err); 1864 } 1865 1866 static void 1867 mlx5e_sq_send_nops_locked(struct mlx5e_sq *sq, int can_sleep) 1868 { 1869 /* fill up remainder with NOPs */ 1870 while (sq->cev_counter != 0) { 1871 while (!mlx5e_sq_has_room_for(sq, 1)) { 1872 if (can_sleep != 0) { 1873 mtx_unlock(&sq->lock); 1874 msleep(4); 1875 mtx_lock(&sq->lock); 1876 } else { 1877 goto done; 1878 } 1879 } 1880 /* send a single NOP */ 1881 mlx5e_send_nop(sq, 1); 1882 atomic_thread_fence_rel(); 1883 } 1884 done: 1885 mlx5e_tx_notify_hw(sq, false); 1886 } 1887 1888 void 1889 mlx5e_sq_cev_timeout(void *arg) 1890 { 1891 struct mlx5e_sq *sq = arg; 1892 1893 mtx_assert(&sq->lock, MA_OWNED); 1894 1895 /* check next state */ 1896 switch (sq->cev_next_state) { 1897 case MLX5E_CEV_STATE_SEND_NOPS: 1898 /* fill TX ring with NOPs, if any */ 1899 mlx5e_sq_send_nops_locked(sq, 0); 1900 1901 /* check if completed */ 1902 if (sq->cev_counter == 0) { 1903 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL; 1904 return; 1905 } 1906 break; 1907 default: 1908 /* send NOPs on next timeout */ 1909 sq->cev_next_state = MLX5E_CEV_STATE_SEND_NOPS; 1910 break; 1911 } 1912 1913 /* restart timer */ 1914 callout_reset_curcpu(&sq->cev_callout, hz, mlx5e_sq_cev_timeout, sq); 1915 } 1916 1917 void 1918 mlx5e_drain_sq(struct mlx5e_sq *sq) 1919 { 1920 int error; 1921 struct mlx5_core_dev *mdev= sq->priv->mdev; 1922 1923 /* 1924 * Check if already stopped. 1925 * 1926 * NOTE: Serialization of this function is managed by the 1927 * caller ensuring the priv's state lock is locked or in case 1928 * of rate limit support, a single thread manages drain and 1929 * resume of SQs. The "running" variable can therefore safely 1930 * be read without any locks. 1931 */ 1932 if (READ_ONCE(sq->running) == 0) 1933 return; 1934 1935 /* don't put more packets into the SQ */ 1936 WRITE_ONCE(sq->running, 0); 1937 1938 /* serialize access to DMA rings */ 1939 mtx_lock(&sq->lock); 1940 1941 /* teardown event factor timer, if any */ 1942 sq->cev_next_state = MLX5E_CEV_STATE_HOLD_NOPS; 1943 callout_stop(&sq->cev_callout); 1944 1945 /* send dummy NOPs in order to flush the transmit ring */ 1946 mlx5e_sq_send_nops_locked(sq, 1); 1947 mtx_unlock(&sq->lock); 1948 1949 /* wait till SQ is empty or link is down */ 1950 mtx_lock(&sq->lock); 1951 while (sq->cc != sq->pc && 1952 (sq->priv->media_status_last & IFM_ACTIVE) != 0 && 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 /* error out remaining requests */ 1963 error = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR); 1964 if (error != 0) { 1965 mlx5_en_err(sq->ifp, 1966 "mlx5e_modify_sq() from RDY to ERR failed: %d\n", error); 1967 } 1968 1969 /* wait till SQ is empty */ 1970 mtx_lock(&sq->lock); 1971 while (sq->cc != sq->pc && 1972 mdev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR && 1973 pci_channel_offline(mdev->pdev) == 0) { 1974 mtx_unlock(&sq->lock); 1975 msleep(1); 1976 sq->cq.mcq.comp(&sq->cq.mcq, NULL); 1977 mtx_lock(&sq->lock); 1978 } 1979 mtx_unlock(&sq->lock); 1980 } 1981 1982 static void 1983 mlx5e_close_sq_wait(struct mlx5e_sq *sq) 1984 { 1985 1986 mlx5e_drain_sq(sq); 1987 mlx5e_disable_sq(sq); 1988 mlx5e_destroy_sq(sq); 1989 } 1990 1991 static int 1992 mlx5e_create_cq(struct mlx5e_priv *priv, 1993 struct mlx5e_cq_param *param, 1994 struct mlx5e_cq *cq, 1995 mlx5e_cq_comp_t *comp, 1996 int eq_ix) 1997 { 1998 struct mlx5_core_dev *mdev = priv->mdev; 1999 struct mlx5_core_cq *mcq = &cq->mcq; 2000 int eqn_not_used; 2001 int irqn; 2002 int err; 2003 u32 i; 2004 2005 err = mlx5_vector2eqn(mdev, eq_ix, &eqn_not_used, &irqn); 2006 if (err) 2007 return (err); 2008 2009 err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, 2010 &cq->wq_ctrl); 2011 if (err) 2012 return (err); 2013 2014 mcq->cqe_sz = 64; 2015 mcq->set_ci_db = cq->wq_ctrl.db.db; 2016 mcq->arm_db = cq->wq_ctrl.db.db + 1; 2017 *mcq->set_ci_db = 0; 2018 *mcq->arm_db = 0; 2019 mcq->vector = eq_ix; 2020 mcq->comp = comp; 2021 mcq->event = mlx5e_cq_error_event; 2022 mcq->irqn = irqn; 2023 2024 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { 2025 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); 2026 2027 cqe->op_own = 0xf1; 2028 } 2029 2030 cq->priv = priv; 2031 2032 return (0); 2033 } 2034 2035 static void 2036 mlx5e_destroy_cq(struct mlx5e_cq *cq) 2037 { 2038 mlx5_wq_destroy(&cq->wq_ctrl); 2039 } 2040 2041 static int 2042 mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param, int eq_ix) 2043 { 2044 struct mlx5_core_cq *mcq = &cq->mcq; 2045 u32 out[MLX5_ST_SZ_DW(create_cq_out)]; 2046 void *in; 2047 void *cqc; 2048 int inlen; 2049 int irqn_not_used; 2050 int eqn; 2051 int err; 2052 2053 inlen = MLX5_ST_SZ_BYTES(create_cq_in) + 2054 sizeof(u64) * cq->wq_ctrl.buf.npages; 2055 in = mlx5_vzalloc(inlen); 2056 if (in == NULL) 2057 return (-ENOMEM); 2058 2059 cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); 2060 2061 memcpy(cqc, param->cqc, sizeof(param->cqc)); 2062 2063 mlx5_fill_page_array(&cq->wq_ctrl.buf, 2064 (__be64 *) MLX5_ADDR_OF(create_cq_in, in, pas)); 2065 2066 mlx5_vector2eqn(cq->priv->mdev, eq_ix, &eqn, &irqn_not_used); 2067 2068 MLX5_SET(cqc, cqc, c_eqn, eqn); 2069 MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - 2070 MLX5_ADAPTER_PAGE_SHIFT); 2071 MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); 2072 2073 err = mlx5_core_create_cq(cq->priv->mdev, mcq, in, inlen, out, sizeof(out)); 2074 2075 kvfree(in); 2076 2077 if (err) 2078 return (err); 2079 2080 mlx5e_cq_arm(cq, MLX5_GET_DOORBELL_LOCK(&cq->priv->doorbell_lock)); 2081 2082 return (0); 2083 } 2084 2085 static void 2086 mlx5e_disable_cq(struct mlx5e_cq *cq) 2087 { 2088 2089 mlx5_core_destroy_cq(cq->priv->mdev, &cq->mcq); 2090 } 2091 2092 int 2093 mlx5e_open_cq(struct mlx5e_priv *priv, 2094 struct mlx5e_cq_param *param, 2095 struct mlx5e_cq *cq, 2096 mlx5e_cq_comp_t *comp, 2097 int eq_ix) 2098 { 2099 int err; 2100 2101 err = mlx5e_create_cq(priv, param, cq, comp, eq_ix); 2102 if (err) 2103 return (err); 2104 2105 err = mlx5e_enable_cq(cq, param, eq_ix); 2106 if (err) 2107 goto err_destroy_cq; 2108 2109 return (0); 2110 2111 err_destroy_cq: 2112 mlx5e_destroy_cq(cq); 2113 2114 return (err); 2115 } 2116 2117 void 2118 mlx5e_close_cq(struct mlx5e_cq *cq) 2119 { 2120 mlx5e_disable_cq(cq); 2121 mlx5e_destroy_cq(cq); 2122 } 2123 2124 static int 2125 mlx5e_open_tx_cqs(struct mlx5e_channel *c, 2126 struct mlx5e_channel_param *cparam) 2127 { 2128 int err; 2129 int tc; 2130 2131 for (tc = 0; tc < c->priv->num_tc; tc++) { 2132 /* open completion queue */ 2133 err = mlx5e_open_cq(c->priv, &cparam->tx_cq, &c->sq[tc].cq, 2134 &mlx5e_tx_cq_comp, c->ix); 2135 if (err) 2136 goto err_close_tx_cqs; 2137 } 2138 return (0); 2139 2140 err_close_tx_cqs: 2141 for (tc--; tc >= 0; tc--) 2142 mlx5e_close_cq(&c->sq[tc].cq); 2143 2144 return (err); 2145 } 2146 2147 static void 2148 mlx5e_close_tx_cqs(struct mlx5e_channel *c) 2149 { 2150 int tc; 2151 2152 for (tc = 0; tc < c->priv->num_tc; tc++) 2153 mlx5e_close_cq(&c->sq[tc].cq); 2154 } 2155 2156 static int 2157 mlx5e_open_sqs(struct mlx5e_channel *c, 2158 struct mlx5e_channel_param *cparam) 2159 { 2160 int err; 2161 int tc; 2162 2163 for (tc = 0; tc < c->priv->num_tc; tc++) { 2164 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]); 2165 if (err) 2166 goto err_close_sqs; 2167 } 2168 2169 return (0); 2170 2171 err_close_sqs: 2172 for (tc--; tc >= 0; tc--) 2173 mlx5e_close_sq_wait(&c->sq[tc]); 2174 2175 return (err); 2176 } 2177 2178 static void 2179 mlx5e_close_sqs_wait(struct mlx5e_channel *c) 2180 { 2181 int tc; 2182 2183 for (tc = 0; tc < c->priv->num_tc; tc++) 2184 mlx5e_close_sq_wait(&c->sq[tc]); 2185 } 2186 2187 static void 2188 mlx5e_chan_static_init(struct mlx5e_priv *priv, struct mlx5e_channel *c, int ix) 2189 { 2190 int tc; 2191 2192 /* setup priv and channel number */ 2193 c->priv = priv; 2194 c->ix = ix; 2195 2196 /* setup send tag */ 2197 m_snd_tag_init(&c->tag, c->priv->ifp, &mlx5e_ul_snd_tag_sw); 2198 2199 init_completion(&c->completion); 2200 2201 mtx_init(&c->rq.mtx, "mlx5rx", MTX_NETWORK_LOCK, MTX_DEF); 2202 2203 callout_init_mtx(&c->rq.watchdog, &c->rq.mtx, 0); 2204 2205 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) { 2206 struct mlx5e_sq *sq = c->sq + tc; 2207 2208 mtx_init(&sq->lock, "mlx5tx", 2209 MTX_NETWORK_LOCK " TX", MTX_DEF); 2210 mtx_init(&sq->comp_lock, "mlx5comp", 2211 MTX_NETWORK_LOCK " TX", MTX_DEF); 2212 2213 callout_init_mtx(&sq->cev_callout, &sq->lock, 0); 2214 } 2215 2216 mlx5e_iq_static_init(&c->iq); 2217 } 2218 2219 static void 2220 mlx5e_chan_wait_for_completion(struct mlx5e_channel *c) 2221 { 2222 2223 m_snd_tag_rele(&c->tag); 2224 wait_for_completion(&c->completion); 2225 } 2226 2227 static void 2228 mlx5e_priv_wait_for_completion(struct mlx5e_priv *priv, const uint32_t channels) 2229 { 2230 uint32_t x; 2231 2232 for (x = 0; x != channels; x++) 2233 mlx5e_chan_wait_for_completion(&priv->channel[x]); 2234 } 2235 2236 static void 2237 mlx5e_chan_static_destroy(struct mlx5e_channel *c) 2238 { 2239 int tc; 2240 2241 callout_drain(&c->rq.watchdog); 2242 2243 mtx_destroy(&c->rq.mtx); 2244 2245 for (tc = 0; tc != MLX5E_MAX_TX_NUM_TC; tc++) { 2246 callout_drain(&c->sq[tc].cev_callout); 2247 mtx_destroy(&c->sq[tc].lock); 2248 mtx_destroy(&c->sq[tc].comp_lock); 2249 } 2250 2251 mlx5e_iq_static_destroy(&c->iq); 2252 } 2253 2254 static int 2255 mlx5e_open_channel(struct mlx5e_priv *priv, 2256 struct mlx5e_channel_param *cparam, 2257 struct mlx5e_channel *c) 2258 { 2259 struct epoch_tracker et; 2260 int i, err; 2261 2262 /* zero non-persistent data */ 2263 MLX5E_ZERO(&c->rq, mlx5e_rq_zero_start); 2264 for (i = 0; i != priv->num_tc; i++) 2265 MLX5E_ZERO(&c->sq[i], mlx5e_sq_zero_start); 2266 MLX5E_ZERO(&c->iq, mlx5e_iq_zero_start); 2267 2268 /* open transmit completion queue */ 2269 err = mlx5e_open_tx_cqs(c, cparam); 2270 if (err) 2271 goto err_free; 2272 2273 /* open receive completion queue */ 2274 err = mlx5e_open_cq(c->priv, &cparam->rx_cq, &c->rq.cq, 2275 &mlx5e_rx_cq_comp, c->ix); 2276 if (err) 2277 goto err_close_tx_cqs; 2278 2279 err = mlx5e_open_sqs(c, cparam); 2280 if (err) 2281 goto err_close_rx_cq; 2282 2283 err = mlx5e_iq_open(c, &cparam->sq, &cparam->tx_cq, &c->iq); 2284 if (err) 2285 goto err_close_sqs; 2286 2287 err = mlx5e_open_rq(c, &cparam->rq, &c->rq); 2288 if (err) 2289 goto err_close_iq; 2290 2291 /* poll receive queue initially */ 2292 NET_EPOCH_ENTER(et); 2293 c->rq.cq.mcq.comp(&c->rq.cq.mcq, NULL); 2294 NET_EPOCH_EXIT(et); 2295 2296 return (0); 2297 2298 err_close_iq: 2299 mlx5e_iq_close(&c->iq); 2300 2301 err_close_sqs: 2302 mlx5e_close_sqs_wait(c); 2303 2304 err_close_rx_cq: 2305 mlx5e_close_cq(&c->rq.cq); 2306 2307 err_close_tx_cqs: 2308 mlx5e_close_tx_cqs(c); 2309 2310 err_free: 2311 return (err); 2312 } 2313 2314 static void 2315 mlx5e_close_channel(struct mlx5e_channel *c) 2316 { 2317 mlx5e_close_rq(&c->rq); 2318 } 2319 2320 static void 2321 mlx5e_close_channel_wait(struct mlx5e_channel *c) 2322 { 2323 mlx5e_close_rq_wait(&c->rq); 2324 mlx5e_iq_close(&c->iq); 2325 mlx5e_close_sqs_wait(c); 2326 mlx5e_close_tx_cqs(c); 2327 } 2328 2329 static int 2330 mlx5e_get_wqe_sz(struct mlx5e_priv *priv, u32 *wqe_sz, u32 *nsegs) 2331 { 2332 u32 r, n; 2333 2334 r = priv->params.hw_lro_en ? priv->params.lro_wqe_sz : 2335 MLX5E_SW2MB_MTU(priv->ifp->if_mtu); 2336 if (r > MJUM16BYTES) 2337 return (-ENOMEM); 2338 2339 if (r > MJUM9BYTES) 2340 r = MJUM16BYTES; 2341 else if (r > MJUMPAGESIZE) 2342 r = MJUM9BYTES; 2343 else if (r > MCLBYTES) 2344 r = MJUMPAGESIZE; 2345 else 2346 r = MCLBYTES; 2347 2348 /* 2349 * n + 1 must be a power of two, because stride size must be. 2350 * Stride size is 16 * (n + 1), as the first segment is 2351 * control. 2352 */ 2353 for (n = howmany(r, MLX5E_MAX_RX_BYTES); !powerof2(n + 1); n++) 2354 ; 2355 2356 if (n > MLX5E_MAX_BUSDMA_RX_SEGS) 2357 return (-ENOMEM); 2358 2359 *wqe_sz = r; 2360 *nsegs = n; 2361 return (0); 2362 } 2363 2364 static void 2365 mlx5e_build_rq_param(struct mlx5e_priv *priv, 2366 struct mlx5e_rq_param *param) 2367 { 2368 void *rqc = param->rqc; 2369 void *wq = MLX5_ADDR_OF(rqc, rqc, wq); 2370 u32 wqe_sz, nsegs; 2371 2372 mlx5e_get_wqe_sz(priv, &wqe_sz, &nsegs); 2373 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); 2374 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); 2375 MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe) + 2376 nsegs * sizeof(struct mlx5_wqe_data_seg))); 2377 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size); 2378 MLX5_SET(wq, wq, pd, priv->pdn); 2379 2380 param->wq.linear = 1; 2381 } 2382 2383 static void 2384 mlx5e_build_sq_param(struct mlx5e_priv *priv, 2385 struct mlx5e_sq_param *param) 2386 { 2387 void *sqc = param->sqc; 2388 void *wq = MLX5_ADDR_OF(sqc, sqc, wq); 2389 2390 MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size); 2391 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); 2392 MLX5_SET(wq, wq, pd, priv->pdn); 2393 2394 param->wq.linear = 1; 2395 } 2396 2397 static void 2398 mlx5e_build_common_cq_param(struct mlx5e_priv *priv, 2399 struct mlx5e_cq_param *param) 2400 { 2401 void *cqc = param->cqc; 2402 2403 MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index); 2404 } 2405 2406 static void 2407 mlx5e_get_default_profile(struct mlx5e_priv *priv, int mode, struct net_dim_cq_moder *ptr) 2408 { 2409 2410 *ptr = net_dim_get_profile(mode, MLX5E_DIM_DEFAULT_PROFILE); 2411 2412 /* apply LRO restrictions */ 2413 if (priv->params.hw_lro_en && 2414 ptr->pkts > MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO) { 2415 ptr->pkts = MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO; 2416 } 2417 } 2418 2419 static void 2420 mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, 2421 struct mlx5e_cq_param *param) 2422 { 2423 struct net_dim_cq_moder curr; 2424 void *cqc = param->cqc; 2425 2426 /* 2427 * We use MLX5_CQE_FORMAT_HASH because the RX hash mini CQE 2428 * format is more beneficial for FreeBSD use case. 2429 * 2430 * Adding support for MLX5_CQE_FORMAT_CSUM will require changes 2431 * in mlx5e_decompress_cqe. 2432 */ 2433 if (priv->params.cqe_zipping_en) { 2434 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_HASH); 2435 MLX5_SET(cqc, cqc, cqe_compression_en, 1); 2436 } 2437 2438 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size); 2439 2440 switch (priv->params.rx_cq_moderation_mode) { 2441 case 0: 2442 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec); 2443 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts); 2444 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2445 break; 2446 case 1: 2447 MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec); 2448 MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts); 2449 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2450 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2451 else 2452 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2453 break; 2454 case 2: 2455 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE, &curr); 2456 MLX5_SET(cqc, cqc, cq_period, curr.usec); 2457 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts); 2458 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2459 break; 2460 case 3: 2461 mlx5e_get_default_profile(priv, NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE, &curr); 2462 MLX5_SET(cqc, cqc, cq_period, curr.usec); 2463 MLX5_SET(cqc, cqc, cq_max_count, curr.pkts); 2464 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2465 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2466 else 2467 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2468 break; 2469 default: 2470 break; 2471 } 2472 2473 mlx5e_dim_build_cq_param(priv, param); 2474 2475 mlx5e_build_common_cq_param(priv, param); 2476 } 2477 2478 static void 2479 mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, 2480 struct mlx5e_cq_param *param) 2481 { 2482 void *cqc = param->cqc; 2483 2484 MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size); 2485 MLX5_SET(cqc, cqc, cq_period, priv->params.tx_cq_moderation_usec); 2486 MLX5_SET(cqc, cqc, cq_max_count, priv->params.tx_cq_moderation_pkts); 2487 2488 switch (priv->params.tx_cq_moderation_mode) { 2489 case 0: 2490 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2491 break; 2492 default: 2493 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) 2494 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE); 2495 else 2496 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); 2497 break; 2498 } 2499 2500 mlx5e_build_common_cq_param(priv, param); 2501 } 2502 2503 static void 2504 mlx5e_build_channel_param(struct mlx5e_priv *priv, 2505 struct mlx5e_channel_param *cparam) 2506 { 2507 memset(cparam, 0, sizeof(*cparam)); 2508 2509 mlx5e_build_rq_param(priv, &cparam->rq); 2510 mlx5e_build_sq_param(priv, &cparam->sq); 2511 mlx5e_build_rx_cq_param(priv, &cparam->rx_cq); 2512 mlx5e_build_tx_cq_param(priv, &cparam->tx_cq); 2513 } 2514 2515 static int 2516 mlx5e_open_channels(struct mlx5e_priv *priv) 2517 { 2518 struct mlx5e_channel_param *cparam; 2519 int err; 2520 int i; 2521 int j; 2522 2523 cparam = malloc(sizeof(*cparam), M_MLX5EN, M_WAITOK); 2524 2525 mlx5e_build_channel_param(priv, cparam); 2526 for (i = 0; i < priv->params.num_channels; i++) { 2527 err = mlx5e_open_channel(priv, cparam, &priv->channel[i]); 2528 if (err) 2529 goto err_close_channels; 2530 2531 /* Bind interrupt vectors, if any. */ 2532 if (priv->params_ethtool.irq_cpu_base > -1) { 2533 cpuset_t cpuset; 2534 int cpu; 2535 int irq; 2536 int eqn; 2537 int nirq; 2538 2539 err = mlx5_vector2eqn(priv->mdev, i, 2540 &eqn, &nirq); 2541 2542 /* error here is non-fatal */ 2543 if (err != 0) 2544 continue; 2545 2546 irq = priv->mdev->priv.msix_arr[nirq].vector; 2547 cpu = (unsigned)(priv->params_ethtool.irq_cpu_base + 2548 i * priv->params_ethtool.irq_cpu_stride) % (unsigned)mp_ncpus; 2549 2550 CPU_ZERO(&cpuset); 2551 CPU_SET(cpu, &cpuset); 2552 intr_setaffinity(irq, CPU_WHICH_INTRHANDLER, &cpuset); 2553 } 2554 } 2555 2556 for (j = 0; j < priv->params.num_channels; j++) { 2557 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j].rq); 2558 if (err) 2559 goto err_close_channels; 2560 } 2561 free(cparam, M_MLX5EN); 2562 return (0); 2563 2564 err_close_channels: 2565 while (i--) { 2566 mlx5e_close_channel(&priv->channel[i]); 2567 mlx5e_close_channel_wait(&priv->channel[i]); 2568 } 2569 free(cparam, M_MLX5EN); 2570 return (err); 2571 } 2572 2573 static void 2574 mlx5e_close_channels(struct mlx5e_priv *priv) 2575 { 2576 int i; 2577 2578 for (i = 0; i < priv->params.num_channels; i++) 2579 mlx5e_close_channel(&priv->channel[i]); 2580 for (i = 0; i < priv->params.num_channels; i++) 2581 mlx5e_close_channel_wait(&priv->channel[i]); 2582 } 2583 2584 static int 2585 mlx5e_refresh_sq_params(struct mlx5e_priv *priv, struct mlx5e_sq *sq) 2586 { 2587 2588 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) { 2589 uint8_t cq_mode; 2590 2591 switch (priv->params.tx_cq_moderation_mode) { 2592 case 0: 2593 case 2: 2594 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE; 2595 break; 2596 default: 2597 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE; 2598 break; 2599 } 2600 2601 return (mlx5_core_modify_cq_moderation_mode(priv->mdev, &sq->cq.mcq, 2602 priv->params.tx_cq_moderation_usec, 2603 priv->params.tx_cq_moderation_pkts, 2604 cq_mode)); 2605 } 2606 2607 return (mlx5_core_modify_cq_moderation(priv->mdev, &sq->cq.mcq, 2608 priv->params.tx_cq_moderation_usec, 2609 priv->params.tx_cq_moderation_pkts)); 2610 } 2611 2612 static int 2613 mlx5e_refresh_rq_params(struct mlx5e_priv *priv, struct mlx5e_rq *rq) 2614 { 2615 2616 if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) { 2617 uint8_t cq_mode; 2618 uint8_t dim_mode; 2619 int retval; 2620 2621 switch (priv->params.rx_cq_moderation_mode) { 2622 case 0: 2623 case 2: 2624 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE; 2625 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE; 2626 break; 2627 default: 2628 cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE; 2629 dim_mode = NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE; 2630 break; 2631 } 2632 2633 /* tear down dynamic interrupt moderation */ 2634 mtx_lock(&rq->mtx); 2635 rq->dim.mode = NET_DIM_CQ_PERIOD_MODE_DISABLED; 2636 mtx_unlock(&rq->mtx); 2637 2638 /* wait for dynamic interrupt moderation work task, if any */ 2639 cancel_work_sync(&rq->dim.work); 2640 2641 if (priv->params.rx_cq_moderation_mode >= 2) { 2642 struct net_dim_cq_moder curr; 2643 2644 mlx5e_get_default_profile(priv, dim_mode, &curr); 2645 2646 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq, 2647 curr.usec, curr.pkts, cq_mode); 2648 2649 /* set dynamic interrupt moderation mode and zero defaults */ 2650 mtx_lock(&rq->mtx); 2651 rq->dim.mode = dim_mode; 2652 rq->dim.state = 0; 2653 rq->dim.profile_ix = MLX5E_DIM_DEFAULT_PROFILE; 2654 mtx_unlock(&rq->mtx); 2655 } else { 2656 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq, 2657 priv->params.rx_cq_moderation_usec, 2658 priv->params.rx_cq_moderation_pkts, 2659 cq_mode); 2660 } 2661 return (retval); 2662 } 2663 2664 return (mlx5_core_modify_cq_moderation(priv->mdev, &rq->cq.mcq, 2665 priv->params.rx_cq_moderation_usec, 2666 priv->params.rx_cq_moderation_pkts)); 2667 } 2668 2669 static int 2670 mlx5e_refresh_channel_params_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c) 2671 { 2672 int err; 2673 int i; 2674 2675 err = mlx5e_refresh_rq_params(priv, &c->rq); 2676 if (err) 2677 goto done; 2678 2679 for (i = 0; i != priv->num_tc; i++) { 2680 err = mlx5e_refresh_sq_params(priv, &c->sq[i]); 2681 if (err) 2682 goto done; 2683 } 2684 done: 2685 return (err); 2686 } 2687 2688 int 2689 mlx5e_refresh_channel_params(struct mlx5e_priv *priv) 2690 { 2691 int i; 2692 2693 /* check if channels are closed */ 2694 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 2695 return (EINVAL); 2696 2697 for (i = 0; i < priv->params.num_channels; i++) { 2698 int err; 2699 2700 err = mlx5e_refresh_channel_params_sub(priv, &priv->channel[i]); 2701 if (err) 2702 return (err); 2703 } 2704 return (0); 2705 } 2706 2707 static int 2708 mlx5e_open_tis(struct mlx5e_priv *priv, int tc) 2709 { 2710 struct mlx5_core_dev *mdev = priv->mdev; 2711 u32 in[MLX5_ST_SZ_DW(create_tis_in)]; 2712 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); 2713 2714 memset(in, 0, sizeof(in)); 2715 2716 MLX5_SET(tisc, tisc, prio, tc); 2717 MLX5_SET(tisc, tisc, transport_domain, priv->tdn); 2718 2719 return (mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc])); 2720 } 2721 2722 static void 2723 mlx5e_close_tis(struct mlx5e_priv *priv, int tc) 2724 { 2725 mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc], 0); 2726 } 2727 2728 static int 2729 mlx5e_open_tises(struct mlx5e_priv *priv) 2730 { 2731 int num_tc = priv->num_tc; 2732 int err; 2733 int tc; 2734 2735 for (tc = 0; tc < num_tc; tc++) { 2736 err = mlx5e_open_tis(priv, tc); 2737 if (err) 2738 goto err_close_tises; 2739 } 2740 2741 return (0); 2742 2743 err_close_tises: 2744 for (tc--; tc >= 0; tc--) 2745 mlx5e_close_tis(priv, tc); 2746 2747 return (err); 2748 } 2749 2750 static void 2751 mlx5e_close_tises(struct mlx5e_priv *priv) 2752 { 2753 int num_tc = priv->num_tc; 2754 int tc; 2755 2756 for (tc = 0; tc < num_tc; tc++) 2757 mlx5e_close_tis(priv, tc); 2758 } 2759 2760 static int 2761 mlx5e_open_default_rqt(struct mlx5e_priv *priv, u32 *prqtn, int sz) 2762 { 2763 u32 *in; 2764 void *rqtc; 2765 int inlen; 2766 int err; 2767 int i; 2768 2769 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; 2770 in = mlx5_vzalloc(inlen); 2771 if (in == NULL) 2772 return (-ENOMEM); 2773 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); 2774 2775 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2776 MLX5_SET(rqtc, rqtc, rqt_max_size, sz); 2777 2778 for (i = 0; i != sz; i++) 2779 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn); 2780 2781 err = mlx5_core_create_rqt(priv->mdev, in, inlen, prqtn); 2782 kvfree(in); 2783 2784 return (err); 2785 } 2786 2787 static int 2788 mlx5e_open_rqts(struct mlx5e_priv *priv) 2789 { 2790 int err; 2791 int i; 2792 2793 err = mlx5e_open_default_rqt(priv, &priv->rqtn, 2794 1 << priv->params.rx_hash_log_tbl_sz); 2795 if (err) 2796 goto err_default; 2797 2798 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2799 err = mlx5e_open_default_rqt(priv, &priv->channel[i].rqtn, 1); 2800 if (err) 2801 goto err_channel; 2802 } 2803 return (0); 2804 2805 err_channel: 2806 while (i--) 2807 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0); 2808 2809 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0); 2810 2811 err_default: 2812 return (err); 2813 } 2814 2815 static void 2816 mlx5e_close_rqts(struct mlx5e_priv *priv) 2817 { 2818 int i; 2819 2820 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) 2821 mlx5_core_destroy_rqt(priv->mdev, priv->channel[i].rqtn, 0); 2822 2823 mlx5_core_destroy_rqt(priv->mdev, priv->rqtn, 0); 2824 } 2825 2826 static int 2827 mlx5e_activate_rqt(struct mlx5e_priv *priv) 2828 { 2829 u32 *in; 2830 void *rqtc; 2831 int inlen; 2832 int err; 2833 int sz; 2834 int i; 2835 2836 sz = 1 << priv->params.rx_hash_log_tbl_sz; 2837 2838 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; 2839 in = mlx5_vzalloc(inlen); 2840 if (in == NULL) 2841 return (-ENOMEM); 2842 2843 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); 2844 2845 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2846 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); 2847 2848 for (i = 0; i != sz; i++) { 2849 int ix; 2850 #ifdef RSS 2851 ix = rss_get_indirection_to_bucket(i); 2852 #else 2853 ix = i; 2854 #endif 2855 /* ensure we don't overflow */ 2856 ix %= priv->params.num_channels; 2857 2858 /* apply receive side scaling stride, if any */ 2859 ix -= ix % (int)priv->params.channels_rsss; 2860 2861 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix].rq.rqn); 2862 } 2863 2864 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen); 2865 if (err) 2866 goto err_modify; 2867 2868 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32); 2869 2870 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1); 2871 2872 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2873 int ix; 2874 #ifdef RSS 2875 ix = rss_get_indirection_to_bucket(i); 2876 #else 2877 ix = i; 2878 #endif 2879 /* ensure we don't overflow */ 2880 ix %= priv->params.num_channels; 2881 2882 /* apply receive side scaling stride, if any */ 2883 ix -= ix % (int)priv->params.channels_rsss; 2884 2885 MLX5_SET(rqtc, rqtc, rq_num[0], priv->channel[ix].rq.rqn); 2886 2887 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen); 2888 if (err) 2889 goto err_modify; 2890 } 2891 2892 err_modify: 2893 kvfree(in); 2894 return (err); 2895 } 2896 2897 static int 2898 mlx5e_deactivate_rqt(struct mlx5e_priv *priv) 2899 { 2900 u32 *in; 2901 void *rqtc; 2902 int inlen; 2903 int err; 2904 int sz; 2905 int i; 2906 2907 sz = 1 << priv->params.rx_hash_log_tbl_sz; 2908 2909 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; 2910 in = mlx5_vzalloc(inlen); 2911 if (in == NULL) 2912 return (-ENOMEM); 2913 2914 rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); 2915 2916 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); 2917 MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); 2918 2919 for (i = 0; i != sz; i++) 2920 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn); 2921 2922 err = mlx5_core_modify_rqt(priv->mdev, priv->rqtn, in, inlen); 2923 if (err) 2924 goto err_modify; 2925 2926 inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32); 2927 2928 MLX5_SET(rqtc, rqtc, rqt_actual_size, 1); 2929 2930 for (i = 0; i != priv->mdev->priv.eq_table.num_comp_vectors; i++) { 2931 MLX5_SET(rqtc, rqtc, rq_num[0], priv->drop_rq.rqn); 2932 2933 err = mlx5_core_modify_rqt(priv->mdev, priv->channel[i].rqtn, in, inlen); 2934 if (err) 2935 goto err_modify; 2936 } 2937 2938 err_modify: 2939 kvfree(in); 2940 return (err); 2941 } 2942 2943 #define MLX5E_RSS_KEY_SIZE (10 * 4) /* bytes */ 2944 2945 static void 2946 mlx5e_get_rss_key(void *key_ptr) 2947 { 2948 #ifdef RSS 2949 rss_getkey(key_ptr); 2950 #else 2951 static const u32 rsskey[] = { 2952 cpu_to_be32(0xD181C62C), 2953 cpu_to_be32(0xF7F4DB5B), 2954 cpu_to_be32(0x1983A2FC), 2955 cpu_to_be32(0x943E1ADB), 2956 cpu_to_be32(0xD9389E6B), 2957 cpu_to_be32(0xD1039C2C), 2958 cpu_to_be32(0xA74499AD), 2959 cpu_to_be32(0x593D56D9), 2960 cpu_to_be32(0xF3253C06), 2961 cpu_to_be32(0x2ADC1FFC), 2962 }; 2963 CTASSERT(sizeof(rsskey) == MLX5E_RSS_KEY_SIZE); 2964 memcpy(key_ptr, rsskey, MLX5E_RSS_KEY_SIZE); 2965 #endif 2966 } 2967 2968 static void 2969 mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 * tirc, int tt, bool inner_vxlan) 2970 { 2971 void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); 2972 void *hfsi = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner); 2973 void *hfs = inner_vxlan ? hfsi : hfso; 2974 __be32 *hkey; 2975 2976 MLX5_SET(tirc, tirc, transport_domain, priv->tdn); 2977 2978 #define ROUGH_MAX_L2_L3_HDR_SZ 256 2979 2980 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2981 MLX5_HASH_FIELD_SEL_DST_IP) 2982 2983 #define MLX5_HASH_ALL (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2984 MLX5_HASH_FIELD_SEL_DST_IP |\ 2985 MLX5_HASH_FIELD_SEL_L4_SPORT |\ 2986 MLX5_HASH_FIELD_SEL_L4_DPORT) 2987 2988 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\ 2989 MLX5_HASH_FIELD_SEL_DST_IP |\ 2990 MLX5_HASH_FIELD_SEL_IPSEC_SPI) 2991 2992 if (priv->params.hw_lro_en) { 2993 MLX5_SET(tirc, tirc, lro_enable_mask, 2994 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | 2995 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); 2996 MLX5_SET(tirc, tirc, lro_max_msg_sz, 2997 (priv->params.lro_wqe_sz - 2998 ROUGH_MAX_L2_L3_HDR_SZ) >> 8); 2999 /* TODO: add the option to choose timer value dynamically */ 3000 MLX5_SET(tirc, tirc, lro_timeout_period_usecs, 3001 MLX5_CAP_ETH(priv->mdev, 3002 lro_timer_supported_periods[2])); 3003 } 3004 3005 if (inner_vxlan) 3006 MLX5_SET(tirc, tirc, tunneled_offload_en, 1); 3007 3008 /* 3009 * All packets must go through the indirection table, RQT, 3010 * because it is not possible to modify the RQN of the TIR 3011 * for direct dispatchment after it is created, typically 3012 * when the link goes up and down. 3013 */ 3014 MLX5_SET(tirc, tirc, disp_type, 3015 MLX5_TIRC_DISP_TYPE_INDIRECT); 3016 MLX5_SET(tirc, tirc, indirect_table, 3017 priv->rqtn); 3018 MLX5_SET(tirc, tirc, rx_hash_fn, 3019 MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ); 3020 hkey = (__be32 *) MLX5_ADDR_OF(tirc, tirc, rx_hash_toeplitz_key); 3021 3022 CTASSERT(MLX5_FLD_SZ_BYTES(tirc, rx_hash_toeplitz_key) >= 3023 MLX5E_RSS_KEY_SIZE); 3024 #ifdef RSS 3025 /* 3026 * The FreeBSD RSS implementation does currently not 3027 * support symmetric Toeplitz hashes: 3028 */ 3029 MLX5_SET(tirc, tirc, rx_hash_symmetric, 0); 3030 #else 3031 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); 3032 #endif 3033 mlx5e_get_rss_key(hkey); 3034 3035 switch (tt) { 3036 case MLX5E_TT_IPV4_TCP: 3037 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3038 MLX5_L3_PROT_TYPE_IPV4); 3039 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3040 MLX5_L4_PROT_TYPE_TCP); 3041 #ifdef RSS 3042 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV4)) { 3043 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3044 MLX5_HASH_IP); 3045 } else 3046 #endif 3047 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3048 MLX5_HASH_ALL); 3049 break; 3050 3051 case MLX5E_TT_IPV6_TCP: 3052 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3053 MLX5_L3_PROT_TYPE_IPV6); 3054 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3055 MLX5_L4_PROT_TYPE_TCP); 3056 #ifdef RSS 3057 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV6)) { 3058 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3059 MLX5_HASH_IP); 3060 } else 3061 #endif 3062 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3063 MLX5_HASH_ALL); 3064 break; 3065 3066 case MLX5E_TT_IPV4_UDP: 3067 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3068 MLX5_L3_PROT_TYPE_IPV4); 3069 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3070 MLX5_L4_PROT_TYPE_UDP); 3071 #ifdef RSS 3072 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV4)) { 3073 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3074 MLX5_HASH_IP); 3075 } else 3076 #endif 3077 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3078 MLX5_HASH_ALL); 3079 break; 3080 3081 case MLX5E_TT_IPV6_UDP: 3082 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3083 MLX5_L3_PROT_TYPE_IPV6); 3084 MLX5_SET(rx_hash_field_select, hfs, l4_prot_type, 3085 MLX5_L4_PROT_TYPE_UDP); 3086 #ifdef RSS 3087 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV6)) { 3088 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3089 MLX5_HASH_IP); 3090 } else 3091 #endif 3092 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3093 MLX5_HASH_ALL); 3094 break; 3095 3096 case MLX5E_TT_IPV4_IPSEC_AH: 3097 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3098 MLX5_L3_PROT_TYPE_IPV4); 3099 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3100 MLX5_HASH_IP_IPSEC_SPI); 3101 break; 3102 3103 case MLX5E_TT_IPV6_IPSEC_AH: 3104 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3105 MLX5_L3_PROT_TYPE_IPV6); 3106 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3107 MLX5_HASH_IP_IPSEC_SPI); 3108 break; 3109 3110 case MLX5E_TT_IPV4_IPSEC_ESP: 3111 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3112 MLX5_L3_PROT_TYPE_IPV4); 3113 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3114 MLX5_HASH_IP_IPSEC_SPI); 3115 break; 3116 3117 case MLX5E_TT_IPV6_IPSEC_ESP: 3118 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3119 MLX5_L3_PROT_TYPE_IPV6); 3120 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3121 MLX5_HASH_IP_IPSEC_SPI); 3122 break; 3123 3124 case MLX5E_TT_IPV4: 3125 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3126 MLX5_L3_PROT_TYPE_IPV4); 3127 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3128 MLX5_HASH_IP); 3129 break; 3130 3131 case MLX5E_TT_IPV6: 3132 MLX5_SET(rx_hash_field_select, hfs, l3_prot_type, 3133 MLX5_L3_PROT_TYPE_IPV6); 3134 MLX5_SET(rx_hash_field_select, hfs, selected_fields, 3135 MLX5_HASH_IP); 3136 break; 3137 3138 default: 3139 break; 3140 } 3141 } 3142 3143 static int 3144 mlx5e_open_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan) 3145 { 3146 struct mlx5_core_dev *mdev = priv->mdev; 3147 u32 *in; 3148 void *tirc; 3149 int inlen; 3150 int err; 3151 3152 inlen = MLX5_ST_SZ_BYTES(create_tir_in); 3153 in = mlx5_vzalloc(inlen); 3154 if (in == NULL) 3155 return (-ENOMEM); 3156 tirc = MLX5_ADDR_OF(create_tir_in, in, tir_context); 3157 3158 mlx5e_build_tir_ctx(priv, tirc, tt, inner_vxlan); 3159 3160 err = mlx5_core_create_tir(mdev, in, inlen, inner_vxlan ? 3161 &priv->tirn_inner_vxlan[tt] : &priv->tirn[tt]); 3162 3163 kvfree(in); 3164 3165 return (err); 3166 } 3167 3168 static void 3169 mlx5e_close_tir(struct mlx5e_priv *priv, int tt, bool inner_vxlan) 3170 { 3171 mlx5_core_destroy_tir(priv->mdev, inner_vxlan ? 3172 priv->tirn_inner_vxlan[tt] : priv->tirn[tt], 0); 3173 } 3174 3175 static int 3176 mlx5e_open_tirs(struct mlx5e_priv *priv) 3177 { 3178 int err; 3179 int i; 3180 3181 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) { 3182 err = mlx5e_open_tir(priv, i / 2, (i % 2) ? true : false); 3183 if (err) 3184 goto err_close_tirs; 3185 } 3186 3187 return (0); 3188 3189 err_close_tirs: 3190 for (i--; i >= 0; i--) 3191 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false); 3192 3193 return (err); 3194 } 3195 3196 static void 3197 mlx5e_close_tirs(struct mlx5e_priv *priv) 3198 { 3199 int i; 3200 3201 for (i = 0; i != 2 * MLX5E_NUM_TT; i++) 3202 mlx5e_close_tir(priv, i / 2, (i % 2) ? true : false); 3203 } 3204 3205 /* 3206 * SW MTU does not include headers, 3207 * HW MTU includes all headers and checksums. 3208 */ 3209 static int 3210 mlx5e_set_dev_port_mtu(struct ifnet *ifp, int sw_mtu) 3211 { 3212 struct mlx5e_priv *priv = ifp->if_softc; 3213 struct mlx5_core_dev *mdev = priv->mdev; 3214 int hw_mtu; 3215 int err; 3216 3217 hw_mtu = MLX5E_SW2HW_MTU(sw_mtu); 3218 3219 err = mlx5_set_port_mtu(mdev, hw_mtu); 3220 if (err) { 3221 mlx5_en_err(ifp, "mlx5_set_port_mtu failed setting %d, err=%d\n", 3222 sw_mtu, err); 3223 return (err); 3224 } 3225 3226 /* Update vport context MTU */ 3227 err = mlx5_set_vport_mtu(mdev, hw_mtu); 3228 if (err) { 3229 mlx5_en_err(ifp, 3230 "Failed updating vport context with MTU size, err=%d\n", 3231 err); 3232 } 3233 3234 ifp->if_mtu = sw_mtu; 3235 3236 err = mlx5_query_vport_mtu(mdev, &hw_mtu); 3237 if (err || !hw_mtu) { 3238 /* fallback to port oper mtu */ 3239 err = mlx5_query_port_oper_mtu(mdev, &hw_mtu); 3240 } 3241 if (err) { 3242 mlx5_en_err(ifp, 3243 "Query port MTU, after setting new MTU value, failed\n"); 3244 return (err); 3245 } else if (MLX5E_HW2SW_MTU(hw_mtu) < sw_mtu) { 3246 err = -E2BIG, 3247 mlx5_en_err(ifp, 3248 "Port MTU %d is smaller than ifp mtu %d\n", 3249 hw_mtu, sw_mtu); 3250 } else if (MLX5E_HW2SW_MTU(hw_mtu) > sw_mtu) { 3251 err = -EINVAL; 3252 mlx5_en_err(ifp, 3253 "Port MTU %d is bigger than ifp mtu %d\n", 3254 hw_mtu, sw_mtu); 3255 } 3256 priv->params_ethtool.hw_mtu = hw_mtu; 3257 3258 /* compute MSB */ 3259 while (hw_mtu & (hw_mtu - 1)) 3260 hw_mtu &= (hw_mtu - 1); 3261 priv->params_ethtool.hw_mtu_msb = hw_mtu; 3262 3263 return (err); 3264 } 3265 3266 int 3267 mlx5e_open_locked(struct ifnet *ifp) 3268 { 3269 struct mlx5e_priv *priv = ifp->if_softc; 3270 int err; 3271 u16 set_id; 3272 3273 /* check if already opened */ 3274 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0) 3275 return (0); 3276 3277 #ifdef RSS 3278 if (rss_getnumbuckets() > priv->params.num_channels) { 3279 mlx5_en_info(ifp, 3280 "NOTE: There are more RSS buckets(%u) than channels(%u) available\n", 3281 rss_getnumbuckets(), priv->params.num_channels); 3282 } 3283 #endif 3284 err = mlx5e_open_tises(priv); 3285 if (err) { 3286 mlx5_en_err(ifp, "mlx5e_open_tises failed, %d\n", err); 3287 return (err); 3288 } 3289 err = mlx5_vport_alloc_q_counter(priv->mdev, 3290 MLX5_INTERFACE_PROTOCOL_ETH, &set_id); 3291 if (err) { 3292 mlx5_en_err(priv->ifp, 3293 "mlx5_vport_alloc_q_counter failed: %d\n", err); 3294 goto err_close_tises; 3295 } 3296 /* store counter set ID */ 3297 priv->counter_set_id = set_id; 3298 3299 err = mlx5e_open_channels(priv); 3300 if (err) { 3301 mlx5_en_err(ifp, 3302 "mlx5e_open_channels failed, %d\n", err); 3303 goto err_dalloc_q_counter; 3304 } 3305 err = mlx5e_activate_rqt(priv); 3306 if (err) { 3307 mlx5_en_err(ifp, "mlx5e_activate_rqt failed, %d\n", err); 3308 goto err_close_channels; 3309 } 3310 3311 set_bit(MLX5E_STATE_OPENED, &priv->state); 3312 3313 mlx5e_update_carrier(priv); 3314 3315 return (0); 3316 3317 err_close_channels: 3318 mlx5e_close_channels(priv); 3319 3320 err_dalloc_q_counter: 3321 mlx5_vport_dealloc_q_counter(priv->mdev, 3322 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id); 3323 3324 err_close_tises: 3325 mlx5e_close_tises(priv); 3326 3327 return (err); 3328 } 3329 3330 static void 3331 mlx5e_open(void *arg) 3332 { 3333 struct mlx5e_priv *priv = arg; 3334 3335 PRIV_LOCK(priv); 3336 if (mlx5_set_port_status(priv->mdev, MLX5_PORT_UP)) 3337 mlx5_en_err(priv->ifp, 3338 "Setting port status to up failed\n"); 3339 3340 mlx5e_open_locked(priv->ifp); 3341 priv->ifp->if_drv_flags |= IFF_DRV_RUNNING; 3342 PRIV_UNLOCK(priv); 3343 } 3344 3345 int 3346 mlx5e_close_locked(struct ifnet *ifp) 3347 { 3348 struct mlx5e_priv *priv = ifp->if_softc; 3349 3350 /* check if already closed */ 3351 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 3352 return (0); 3353 3354 clear_bit(MLX5E_STATE_OPENED, &priv->state); 3355 3356 if_link_state_change(priv->ifp, LINK_STATE_DOWN); 3357 3358 mlx5e_deactivate_rqt(priv); 3359 mlx5e_close_channels(priv); 3360 mlx5_vport_dealloc_q_counter(priv->mdev, 3361 MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id); 3362 mlx5e_close_tises(priv); 3363 3364 return (0); 3365 } 3366 3367 static uint64_t 3368 mlx5e_get_counter(struct ifnet *ifp, ift_counter cnt) 3369 { 3370 struct mlx5e_priv *priv = ifp->if_softc; 3371 u64 retval; 3372 3373 /* PRIV_LOCK(priv); XXX not allowed */ 3374 switch (cnt) { 3375 case IFCOUNTER_IPACKETS: 3376 retval = priv->stats.vport.rx_packets; 3377 break; 3378 case IFCOUNTER_IERRORS: 3379 retval = priv->stats.pport.in_range_len_errors + 3380 priv->stats.pport.out_of_range_len + 3381 priv->stats.pport.too_long_errors + 3382 priv->stats.pport.check_seq_err + 3383 priv->stats.pport.alignment_err; 3384 break; 3385 case IFCOUNTER_IQDROPS: 3386 retval = priv->stats.vport.rx_out_of_buffer; 3387 break; 3388 case IFCOUNTER_OPACKETS: 3389 retval = priv->stats.vport.tx_packets; 3390 break; 3391 case IFCOUNTER_OERRORS: 3392 retval = priv->stats.port_stats_debug.out_discards; 3393 break; 3394 case IFCOUNTER_IBYTES: 3395 retval = priv->stats.vport.rx_bytes; 3396 break; 3397 case IFCOUNTER_OBYTES: 3398 retval = priv->stats.vport.tx_bytes; 3399 break; 3400 case IFCOUNTER_IMCASTS: 3401 retval = priv->stats.vport.rx_multicast_packets; 3402 break; 3403 case IFCOUNTER_OMCASTS: 3404 retval = priv->stats.vport.tx_multicast_packets; 3405 break; 3406 case IFCOUNTER_OQDROPS: 3407 retval = priv->stats.vport.tx_queue_dropped; 3408 break; 3409 case IFCOUNTER_COLLISIONS: 3410 retval = priv->stats.pport.collisions; 3411 break; 3412 default: 3413 retval = if_get_counter_default(ifp, cnt); 3414 break; 3415 } 3416 /* PRIV_UNLOCK(priv); XXX not allowed */ 3417 return (retval); 3418 } 3419 3420 static void 3421 mlx5e_set_rx_mode(struct ifnet *ifp) 3422 { 3423 struct mlx5e_priv *priv = ifp->if_softc; 3424 3425 queue_work(priv->wq, &priv->set_rx_mode_work); 3426 } 3427 3428 static int 3429 mlx5e_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 3430 { 3431 struct mlx5e_priv *priv; 3432 struct ifreq *ifr; 3433 struct ifdownreason *ifdr; 3434 struct ifi2creq i2c; 3435 struct ifrsskey *ifrk; 3436 struct ifrsshash *ifrh; 3437 struct siocsifcapnv_driver_data *drv_ioctl_data, drv_ioctl_data_d; 3438 int error = 0; 3439 int mask; 3440 int size_read = 0; 3441 int module_status; 3442 int module_num; 3443 int max_mtu; 3444 uint8_t read_addr; 3445 3446 priv = ifp->if_softc; 3447 3448 /* check if detaching */ 3449 if (priv == NULL || priv->gone != 0) 3450 return (ENXIO); 3451 3452 switch (command) { 3453 case SIOCSIFMTU: 3454 ifr = (struct ifreq *)data; 3455 3456 PRIV_LOCK(priv); 3457 mlx5_query_port_max_mtu(priv->mdev, &max_mtu); 3458 3459 if (ifr->ifr_mtu >= MLX5E_MTU_MIN && 3460 ifr->ifr_mtu <= MIN(MLX5E_MTU_MAX, max_mtu)) { 3461 int was_opened; 3462 3463 was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 3464 if (was_opened) 3465 mlx5e_close_locked(ifp); 3466 3467 /* set new MTU */ 3468 mlx5e_set_dev_port_mtu(ifp, ifr->ifr_mtu); 3469 3470 if (was_opened) 3471 mlx5e_open_locked(ifp); 3472 } else { 3473 error = EINVAL; 3474 mlx5_en_err(ifp, 3475 "Invalid MTU value. Min val: %d, Max val: %d\n", 3476 MLX5E_MTU_MIN, MIN(MLX5E_MTU_MAX, max_mtu)); 3477 } 3478 PRIV_UNLOCK(priv); 3479 break; 3480 case SIOCSIFFLAGS: 3481 if ((ifp->if_flags & IFF_UP) && 3482 (ifp->if_drv_flags & IFF_DRV_RUNNING)) { 3483 mlx5e_set_rx_mode(ifp); 3484 break; 3485 } 3486 PRIV_LOCK(priv); 3487 if (ifp->if_flags & IFF_UP) { 3488 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 3489 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 3490 mlx5e_open_locked(ifp); 3491 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3492 mlx5_set_port_status(priv->mdev, MLX5_PORT_UP); 3493 } 3494 } else { 3495 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3496 mlx5_set_port_status(priv->mdev, 3497 MLX5_PORT_DOWN); 3498 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0) 3499 mlx5e_close_locked(ifp); 3500 mlx5e_update_carrier(priv); 3501 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3502 } 3503 } 3504 PRIV_UNLOCK(priv); 3505 break; 3506 case SIOCADDMULTI: 3507 case SIOCDELMULTI: 3508 mlx5e_set_rx_mode(ifp); 3509 break; 3510 case SIOCSIFMEDIA: 3511 case SIOCGIFMEDIA: 3512 case SIOCGIFXMEDIA: 3513 ifr = (struct ifreq *)data; 3514 error = ifmedia_ioctl(ifp, ifr, &priv->media, command); 3515 break; 3516 case SIOCGIFCAPNV: 3517 error = 0; 3518 break; 3519 case SIOCSIFCAP: 3520 ifr = (struct ifreq *)data; 3521 drv_ioctl_data = &drv_ioctl_data_d; 3522 drv_ioctl_data->reqcap = ifr->ifr_reqcap; 3523 PRIV_LOCK(priv); 3524 drv_ioctl_data->reqcap2 = ifp->if_capenable2; 3525 drv_ioctl_data->nvcap = NULL; 3526 goto siocsifcap_driver; 3527 case SIOCSIFCAPNV: 3528 drv_ioctl_data = (struct siocsifcapnv_driver_data *)data; 3529 PRIV_LOCK(priv); 3530 siocsifcap_driver: 3531 mask = drv_ioctl_data->reqcap ^ ifp->if_capenable; 3532 3533 if (mask & IFCAP_TXCSUM) { 3534 ifp->if_capenable ^= IFCAP_TXCSUM; 3535 ifp->if_hwassist ^= (CSUM_TCP | CSUM_UDP | CSUM_IP); 3536 3537 if (IFCAP_TSO4 & ifp->if_capenable && 3538 !(IFCAP_TXCSUM & ifp->if_capenable)) { 3539 mask &= ~IFCAP_TSO4; 3540 ifp->if_capenable &= ~IFCAP_TSO4; 3541 ifp->if_hwassist &= ~CSUM_IP_TSO; 3542 mlx5_en_err(ifp, 3543 "tso4 disabled due to -txcsum.\n"); 3544 } 3545 } 3546 if (mask & IFCAP_TXCSUM_IPV6) { 3547 ifp->if_capenable ^= IFCAP_TXCSUM_IPV6; 3548 ifp->if_hwassist ^= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6); 3549 3550 if (IFCAP_TSO6 & ifp->if_capenable && 3551 !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) { 3552 mask &= ~IFCAP_TSO6; 3553 ifp->if_capenable &= ~IFCAP_TSO6; 3554 ifp->if_hwassist &= ~CSUM_IP6_TSO; 3555 mlx5_en_err(ifp, 3556 "tso6 disabled due to -txcsum6.\n"); 3557 } 3558 } 3559 if (mask & IFCAP_MEXTPG) 3560 ifp->if_capenable ^= IFCAP_MEXTPG; 3561 if (mask & IFCAP_TXTLS4) 3562 ifp->if_capenable ^= IFCAP_TXTLS4; 3563 if (mask & IFCAP_TXTLS6) 3564 ifp->if_capenable ^= IFCAP_TXTLS6; 3565 #ifdef RATELIMIT 3566 if (mask & IFCAP_TXTLS_RTLMT) 3567 ifp->if_capenable ^= IFCAP_TXTLS_RTLMT; 3568 #endif 3569 if (mask & IFCAP_RXCSUM) 3570 ifp->if_capenable ^= IFCAP_RXCSUM; 3571 if (mask & IFCAP_RXCSUM_IPV6) 3572 ifp->if_capenable ^= IFCAP_RXCSUM_IPV6; 3573 if (mask & IFCAP_TSO4) { 3574 if (!(IFCAP_TSO4 & ifp->if_capenable) && 3575 !(IFCAP_TXCSUM & ifp->if_capenable)) { 3576 mlx5_en_err(ifp, "enable txcsum first.\n"); 3577 error = EAGAIN; 3578 goto out; 3579 } 3580 ifp->if_capenable ^= IFCAP_TSO4; 3581 ifp->if_hwassist ^= CSUM_IP_TSO; 3582 } 3583 if (mask & IFCAP_TSO6) { 3584 if (!(IFCAP_TSO6 & ifp->if_capenable) && 3585 !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) { 3586 mlx5_en_err(ifp, "enable txcsum6 first.\n"); 3587 error = EAGAIN; 3588 goto out; 3589 } 3590 ifp->if_capenable ^= IFCAP_TSO6; 3591 ifp->if_hwassist ^= CSUM_IP6_TSO; 3592 } 3593 if (mask & IFCAP_VLAN_HWTSO) 3594 ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 3595 if (mask & IFCAP_VLAN_HWFILTER) { 3596 if (ifp->if_capenable & IFCAP_VLAN_HWFILTER) 3597 mlx5e_disable_vlan_filter(priv); 3598 else 3599 mlx5e_enable_vlan_filter(priv); 3600 3601 ifp->if_capenable ^= IFCAP_VLAN_HWFILTER; 3602 } 3603 if (mask & IFCAP_VLAN_HWTAGGING) 3604 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 3605 if (mask & IFCAP_WOL_MAGIC) 3606 ifp->if_capenable ^= IFCAP_WOL_MAGIC; 3607 if (mask & IFCAP_VXLAN_HWCSUM) { 3608 const bool was_enabled = 3609 (ifp->if_capenable & IFCAP_VXLAN_HWCSUM) != 0; 3610 if (was_enabled) 3611 mlx5e_del_all_vxlan_rules(priv); 3612 ifp->if_capenable ^= IFCAP_VXLAN_HWCSUM; 3613 ifp->if_hwassist ^= CSUM_INNER_IP | CSUM_INNER_IP_UDP | 3614 CSUM_INNER_IP_TCP | CSUM_INNER_IP6_UDP | 3615 CSUM_INNER_IP6_TCP; 3616 if (!was_enabled) { 3617 int err = mlx5e_add_all_vxlan_rules(priv); 3618 if (err != 0) { 3619 mlx5_en_err(ifp, 3620 "mlx5e_add_all_vxlan_rules() failed, %d (ignored)\n", err); 3621 } 3622 } 3623 } 3624 if (mask & IFCAP_VXLAN_HWTSO) { 3625 ifp->if_capenable ^= IFCAP_VXLAN_HWTSO; 3626 ifp->if_hwassist ^= CSUM_INNER_IP_TSO | 3627 CSUM_INNER_IP6_TSO; 3628 } 3629 3630 VLAN_CAPABILITIES(ifp); 3631 /* turn off LRO means also turn of HW LRO - if it's on */ 3632 if (mask & IFCAP_LRO) { 3633 int was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); 3634 bool need_restart = false; 3635 3636 ifp->if_capenable ^= IFCAP_LRO; 3637 3638 /* figure out if updating HW LRO is needed */ 3639 if (!(ifp->if_capenable & IFCAP_LRO)) { 3640 if (priv->params.hw_lro_en) { 3641 priv->params.hw_lro_en = false; 3642 need_restart = true; 3643 } 3644 } else { 3645 if (priv->params.hw_lro_en == false && 3646 priv->params_ethtool.hw_lro != 0) { 3647 priv->params.hw_lro_en = true; 3648 need_restart = true; 3649 } 3650 } 3651 if (was_opened && need_restart) { 3652 mlx5e_close_locked(ifp); 3653 mlx5e_open_locked(ifp); 3654 } 3655 } 3656 if (mask & IFCAP_HWRXTSTMP) { 3657 ifp->if_capenable ^= IFCAP_HWRXTSTMP; 3658 if (ifp->if_capenable & IFCAP_HWRXTSTMP) { 3659 if (priv->clbr_done == 0) 3660 mlx5e_reset_calibration_callout(priv); 3661 } else { 3662 callout_drain(&priv->tstmp_clbr); 3663 priv->clbr_done = 0; 3664 } 3665 } 3666 mask = drv_ioctl_data->reqcap2 ^ ifp->if_capenable2; 3667 if (mask & IFCAP2_RXTLS4) 3668 ifp->if_capenable2 ^= IFCAP2_RXTLS4; 3669 if (mask & IFCAP2_RXTLS6) 3670 ifp->if_capenable2 ^= IFCAP2_RXTLS6; 3671 out: 3672 PRIV_UNLOCK(priv); 3673 break; 3674 3675 case SIOCGI2C: 3676 ifr = (struct ifreq *)data; 3677 3678 /* 3679 * Copy from the user-space address ifr_data to the 3680 * kernel-space address i2c 3681 */ 3682 error = copyin(ifr_data_get_ptr(ifr), &i2c, sizeof(i2c)); 3683 if (error) 3684 break; 3685 3686 if (i2c.len > sizeof(i2c.data)) { 3687 error = EINVAL; 3688 break; 3689 } 3690 3691 PRIV_LOCK(priv); 3692 /* Get module_num which is required for the query_eeprom */ 3693 error = mlx5_query_module_num(priv->mdev, &module_num); 3694 if (error) { 3695 mlx5_en_err(ifp, 3696 "Query module num failed, eeprom reading is not supported\n"); 3697 error = EINVAL; 3698 goto err_i2c; 3699 } 3700 /* Check if module is present before doing an access */ 3701 module_status = mlx5_query_module_status(priv->mdev, module_num); 3702 if (module_status != MLX5_MODULE_STATUS_PLUGGED_ENABLED) { 3703 error = EINVAL; 3704 goto err_i2c; 3705 } 3706 /* 3707 * Currently 0XA0 and 0xA2 are the only addresses permitted. 3708 * The internal conversion is as follows: 3709 */ 3710 if (i2c.dev_addr == 0xA0) 3711 read_addr = MLX5_I2C_ADDR_LOW; 3712 else if (i2c.dev_addr == 0xA2) 3713 read_addr = MLX5_I2C_ADDR_HIGH; 3714 else { 3715 mlx5_en_err(ifp, 3716 "Query eeprom failed, Invalid Address: %X\n", 3717 i2c.dev_addr); 3718 error = EINVAL; 3719 goto err_i2c; 3720 } 3721 error = mlx5_query_eeprom(priv->mdev, 3722 read_addr, MLX5_EEPROM_LOW_PAGE, 3723 (uint32_t)i2c.offset, (uint32_t)i2c.len, module_num, 3724 (uint32_t *)i2c.data, &size_read); 3725 if (error) { 3726 mlx5_en_err(ifp, 3727 "Query eeprom failed, eeprom reading is not supported\n"); 3728 error = EINVAL; 3729 goto err_i2c; 3730 } 3731 3732 if (i2c.len > MLX5_EEPROM_MAX_BYTES) { 3733 error = mlx5_query_eeprom(priv->mdev, 3734 read_addr, MLX5_EEPROM_LOW_PAGE, 3735 (uint32_t)(i2c.offset + size_read), 3736 (uint32_t)(i2c.len - size_read), module_num, 3737 (uint32_t *)(i2c.data + size_read), &size_read); 3738 } 3739 if (error) { 3740 mlx5_en_err(ifp, 3741 "Query eeprom failed, eeprom reading is not supported\n"); 3742 error = EINVAL; 3743 goto err_i2c; 3744 } 3745 3746 error = copyout(&i2c, ifr_data_get_ptr(ifr), sizeof(i2c)); 3747 err_i2c: 3748 PRIV_UNLOCK(priv); 3749 break; 3750 case SIOCGIFDOWNREASON: 3751 ifdr = (struct ifdownreason *)data; 3752 bzero(ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg)); 3753 PRIV_LOCK(priv); 3754 error = -mlx5_query_pddr_troubleshooting_info(priv->mdev, NULL, 3755 ifdr->ifdr_msg, sizeof(ifdr->ifdr_msg)); 3756 PRIV_UNLOCK(priv); 3757 if (error == 0) 3758 ifdr->ifdr_reason = IFDR_REASON_MSG; 3759 break; 3760 3761 case SIOCGIFRSSKEY: 3762 ifrk = (struct ifrsskey *)data; 3763 ifrk->ifrk_func = RSS_FUNC_TOEPLITZ; 3764 ifrk->ifrk_keylen = MLX5E_RSS_KEY_SIZE; 3765 CTASSERT(sizeof(ifrk->ifrk_key) >= MLX5E_RSS_KEY_SIZE); 3766 mlx5e_get_rss_key(ifrk->ifrk_key); 3767 break; 3768 3769 case SIOCGIFRSSHASH: 3770 ifrh = (struct ifrsshash *)data; 3771 ifrh->ifrh_func = RSS_FUNC_TOEPLITZ; 3772 ifrh->ifrh_types = 3773 RSS_TYPE_IPV4 | 3774 RSS_TYPE_TCP_IPV4 | 3775 RSS_TYPE_UDP_IPV4 | 3776 RSS_TYPE_IPV6 | 3777 RSS_TYPE_TCP_IPV6 | 3778 RSS_TYPE_UDP_IPV6; 3779 break; 3780 3781 default: 3782 error = ether_ioctl(ifp, command, data); 3783 break; 3784 } 3785 return (error); 3786 } 3787 3788 static int 3789 mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) 3790 { 3791 /* 3792 * TODO: uncoment once FW really sets all these bits if 3793 * (!mdev->caps.eth.rss_ind_tbl_cap || !mdev->caps.eth.csum_cap || 3794 * !mdev->caps.eth.max_lso_cap || !mdev->caps.eth.vlan_cap || 3795 * !(mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_SCQE_BRK_MOD)) return 3796 * -ENOTSUPP; 3797 */ 3798 3799 /* TODO: add more must-to-have features */ 3800 3801 if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) 3802 return (-ENODEV); 3803 3804 return (0); 3805 } 3806 3807 static u16 3808 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev) 3809 { 3810 const int min_size = ETHER_VLAN_ENCAP_LEN + ETHER_HDR_LEN; 3811 const int max_size = MLX5E_MAX_TX_INLINE; 3812 const int bf_buf_size = 3813 ((1U << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2U) - 3814 (sizeof(struct mlx5e_tx_wqe) - 2); 3815 3816 /* verify against driver limits */ 3817 if (bf_buf_size > max_size) 3818 return (max_size); 3819 else if (bf_buf_size < min_size) 3820 return (min_size); 3821 else 3822 return (bf_buf_size); 3823 } 3824 3825 static int 3826 mlx5e_build_ifp_priv(struct mlx5_core_dev *mdev, 3827 struct mlx5e_priv *priv, 3828 int num_comp_vectors) 3829 { 3830 int err; 3831 3832 /* 3833 * TODO: Consider link speed for setting "log_sq_size", 3834 * "log_rq_size" and "cq_moderation_xxx": 3835 */ 3836 priv->params.log_sq_size = 3837 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; 3838 priv->params.log_rq_size = 3839 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; 3840 priv->params.rx_cq_moderation_usec = 3841 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 3842 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE : 3843 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; 3844 priv->params.rx_cq_moderation_mode = 3845 MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 1 : 0; 3846 priv->params.rx_cq_moderation_pkts = 3847 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; 3848 priv->params.tx_cq_moderation_usec = 3849 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; 3850 priv->params.tx_cq_moderation_pkts = 3851 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; 3852 priv->params.min_rx_wqes = 3853 MLX5E_PARAMS_DEFAULT_MIN_RX_WQES; 3854 priv->params.rx_hash_log_tbl_sz = 3855 (order_base_2(num_comp_vectors) > 3856 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ? 3857 order_base_2(num_comp_vectors) : 3858 MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ; 3859 priv->params.num_tc = 1; 3860 priv->params.default_vlan_prio = 0; 3861 priv->counter_set_id = -1; 3862 priv->params.tx_max_inline = mlx5e_get_max_inline_cap(mdev); 3863 3864 err = mlx5_query_min_inline(mdev, &priv->params.tx_min_inline_mode); 3865 if (err) 3866 return (err); 3867 3868 /* 3869 * hw lro is currently defaulted to off. when it won't anymore we 3870 * will consider the HW capability: "!!MLX5_CAP_ETH(mdev, lro_cap)" 3871 */ 3872 priv->params.hw_lro_en = false; 3873 priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; 3874 3875 /* 3876 * CQE zipping is currently defaulted to off. when it won't 3877 * anymore we will consider the HW capability: 3878 * "!!MLX5_CAP_GEN(mdev, cqe_compression)" 3879 */ 3880 priv->params.cqe_zipping_en = false; 3881 3882 priv->mdev = mdev; 3883 priv->params.num_channels = num_comp_vectors; 3884 priv->params.channels_rsss = 1; 3885 priv->order_base_2_num_channels = order_base_2(num_comp_vectors); 3886 priv->queue_mapping_channel_mask = 3887 roundup_pow_of_two(num_comp_vectors) - 1; 3888 priv->num_tc = priv->params.num_tc; 3889 priv->default_vlan_prio = priv->params.default_vlan_prio; 3890 3891 INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work); 3892 INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); 3893 INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); 3894 3895 return (0); 3896 } 3897 3898 static void 3899 mlx5e_mkey_set_relaxed_ordering(struct mlx5_core_dev *mdev, void *mkc) 3900 { 3901 bool ro_pci_enable = 3902 pci_get_relaxed_ordering_enabled(mdev->pdev->dev.bsddev); 3903 bool ro_write = MLX5_CAP_GEN(mdev, relaxed_ordering_write); 3904 bool ro_read = MLX5_CAP_GEN(mdev, relaxed_ordering_read); 3905 3906 MLX5_SET(mkc, mkc, relaxed_ordering_read, ro_pci_enable && ro_read); 3907 MLX5_SET(mkc, mkc, relaxed_ordering_write, ro_pci_enable && ro_write); 3908 } 3909 3910 static int 3911 mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn, 3912 struct mlx5_core_mkey *mkey) 3913 { 3914 struct ifnet *ifp = priv->ifp; 3915 struct mlx5_core_dev *mdev = priv->mdev; 3916 int inlen = MLX5_ST_SZ_BYTES(create_mkey_in); 3917 void *mkc; 3918 u32 *in; 3919 int err; 3920 3921 in = mlx5_vzalloc(inlen); 3922 if (in == NULL) { 3923 mlx5_en_err(ifp, "failed to allocate inbox\n"); 3924 return (-ENOMEM); 3925 } 3926 3927 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); 3928 MLX5_SET(mkc, mkc, access_mode, MLX5_ACCESS_MODE_PA); 3929 MLX5_SET(mkc, mkc, umr_en, 1); /* used by HW TLS */ 3930 MLX5_SET(mkc, mkc, lw, 1); 3931 MLX5_SET(mkc, mkc, lr, 1); 3932 mlx5e_mkey_set_relaxed_ordering(mdev, mkc); 3933 MLX5_SET(mkc, mkc, pd, pdn); 3934 MLX5_SET(mkc, mkc, length64, 1); 3935 MLX5_SET(mkc, mkc, qpn, 0xffffff); 3936 3937 err = mlx5_core_create_mkey(mdev, mkey, in, inlen); 3938 if (err) 3939 mlx5_en_err(ifp, "mlx5_core_create_mkey failed, %d\n", 3940 err); 3941 3942 kvfree(in); 3943 return (err); 3944 } 3945 3946 static const char *mlx5e_vport_stats_desc[] = { 3947 MLX5E_VPORT_STATS(MLX5E_STATS_DESC) 3948 }; 3949 3950 static const char *mlx5e_pport_stats_desc[] = { 3951 MLX5E_PPORT_STATS(MLX5E_STATS_DESC) 3952 }; 3953 3954 static int 3955 mlx5e_priv_static_init(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev, 3956 const uint32_t channels) 3957 { 3958 uint32_t x; 3959 int err; 3960 3961 mtx_init(&priv->async_events_mtx, "mlx5async", MTX_NETWORK_LOCK, MTX_DEF); 3962 sx_init(&priv->state_lock, "mlx5state"); 3963 callout_init_mtx(&priv->watchdog, &priv->async_events_mtx, 0); 3964 MLX5_INIT_DOORBELL_LOCK(&priv->doorbell_lock); 3965 for (x = 0; x != channels; x++) 3966 mlx5e_chan_static_init(priv, &priv->channel[x], x); 3967 3968 for (x = 0; x != channels; x++) { 3969 err = mlx5_alloc_bfreg(mdev, &priv->channel[x].bfreg, false, false); 3970 if (err) 3971 goto err_alloc_bfreg; 3972 } 3973 return (0); 3974 3975 err_alloc_bfreg: 3976 while (x--) 3977 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg); 3978 3979 for (x = 0; x != channels; x++) 3980 mlx5e_chan_static_destroy(&priv->channel[x]); 3981 callout_drain(&priv->watchdog); 3982 mtx_destroy(&priv->async_events_mtx); 3983 sx_destroy(&priv->state_lock); 3984 return (err); 3985 } 3986 3987 static void 3988 mlx5e_priv_static_destroy(struct mlx5e_priv *priv, struct mlx5_core_dev *mdev, 3989 const uint32_t channels) 3990 { 3991 uint32_t x; 3992 3993 for (x = 0; x != channels; x++) 3994 mlx5_free_bfreg(mdev, &priv->channel[x].bfreg); 3995 for (x = 0; x != channels; x++) 3996 mlx5e_chan_static_destroy(&priv->channel[x]); 3997 callout_drain(&priv->watchdog); 3998 mtx_destroy(&priv->async_events_mtx); 3999 sx_destroy(&priv->state_lock); 4000 } 4001 4002 static int 4003 sysctl_firmware(SYSCTL_HANDLER_ARGS) 4004 { 4005 /* 4006 * %d.%d%.d the string format. 4007 * fw_rev_{maj,min,sub} return u16, 2^16 = 65536. 4008 * We need at most 5 chars to store that. 4009 * It also has: two "." and NULL at the end, which means we need 18 4010 * (5*3 + 3) chars at most. 4011 */ 4012 char fw[18]; 4013 struct mlx5e_priv *priv = arg1; 4014 int error; 4015 4016 snprintf(fw, sizeof(fw), "%d.%d.%d", fw_rev_maj(priv->mdev), fw_rev_min(priv->mdev), 4017 fw_rev_sub(priv->mdev)); 4018 error = sysctl_handle_string(oidp, fw, sizeof(fw), req); 4019 return (error); 4020 } 4021 4022 static void 4023 mlx5e_disable_tx_dma(struct mlx5e_channel *ch) 4024 { 4025 int i; 4026 4027 for (i = 0; i < ch->priv->num_tc; i++) 4028 mlx5e_drain_sq(&ch->sq[i]); 4029 } 4030 4031 static void 4032 mlx5e_reset_sq_doorbell_record(struct mlx5e_sq *sq) 4033 { 4034 4035 sq->doorbell.d32[0] = cpu_to_be32(MLX5_OPCODE_NOP); 4036 sq->doorbell.d32[1] = cpu_to_be32(sq->sqn << 8); 4037 mlx5e_tx_notify_hw(sq, true); 4038 } 4039 4040 void 4041 mlx5e_resume_sq(struct mlx5e_sq *sq) 4042 { 4043 int err; 4044 4045 /* check if already enabled */ 4046 if (READ_ONCE(sq->running) != 0) 4047 return; 4048 4049 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_ERR, 4050 MLX5_SQC_STATE_RST); 4051 if (err != 0) { 4052 mlx5_en_err(sq->ifp, 4053 "mlx5e_modify_sq() from ERR to RST failed: %d\n", err); 4054 } 4055 4056 sq->cc = 0; 4057 sq->pc = 0; 4058 4059 /* reset doorbell prior to moving from RST to RDY */ 4060 mlx5e_reset_sq_doorbell_record(sq); 4061 4062 err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, 4063 MLX5_SQC_STATE_RDY); 4064 if (err != 0) { 4065 mlx5_en_err(sq->ifp, 4066 "mlx5e_modify_sq() from RST to RDY failed: %d\n", err); 4067 } 4068 4069 sq->cev_next_state = MLX5E_CEV_STATE_INITIAL; 4070 WRITE_ONCE(sq->running, 1); 4071 } 4072 4073 static void 4074 mlx5e_enable_tx_dma(struct mlx5e_channel *ch) 4075 { 4076 int i; 4077 4078 for (i = 0; i < ch->priv->num_tc; i++) 4079 mlx5e_resume_sq(&ch->sq[i]); 4080 } 4081 4082 static void 4083 mlx5e_disable_rx_dma(struct mlx5e_channel *ch) 4084 { 4085 struct mlx5e_rq *rq = &ch->rq; 4086 struct epoch_tracker et; 4087 int err; 4088 4089 mtx_lock(&rq->mtx); 4090 rq->enabled = 0; 4091 callout_stop(&rq->watchdog); 4092 mtx_unlock(&rq->mtx); 4093 4094 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR); 4095 if (err != 0) { 4096 mlx5_en_err(rq->ifp, 4097 "mlx5e_modify_rq() from RDY to RST failed: %d\n", err); 4098 } 4099 4100 while (!mlx5_wq_ll_is_empty(&rq->wq)) { 4101 msleep(1); 4102 NET_EPOCH_ENTER(et); 4103 rq->cq.mcq.comp(&rq->cq.mcq, NULL); 4104 NET_EPOCH_EXIT(et); 4105 } 4106 4107 /* 4108 * Transitioning into RST state will allow the FW to track less ERR state queues, 4109 * thus reducing the recv queue flushing time 4110 */ 4111 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_ERR, MLX5_RQC_STATE_RST); 4112 if (err != 0) { 4113 mlx5_en_err(rq->ifp, 4114 "mlx5e_modify_rq() from ERR to RST failed: %d\n", err); 4115 } 4116 } 4117 4118 static void 4119 mlx5e_enable_rx_dma(struct mlx5e_channel *ch) 4120 { 4121 struct mlx5e_rq *rq = &ch->rq; 4122 struct epoch_tracker et; 4123 int err; 4124 4125 rq->wq.wqe_ctr = 0; 4126 mlx5_wq_ll_update_db_record(&rq->wq); 4127 err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); 4128 if (err != 0) { 4129 mlx5_en_err(rq->ifp, 4130 "mlx5e_modify_rq() from RST to RDY failed: %d\n", err); 4131 } 4132 4133 rq->enabled = 1; 4134 4135 NET_EPOCH_ENTER(et); 4136 rq->cq.mcq.comp(&rq->cq.mcq, NULL); 4137 NET_EPOCH_EXIT(et); 4138 } 4139 4140 void 4141 mlx5e_modify_tx_dma(struct mlx5e_priv *priv, uint8_t value) 4142 { 4143 int i; 4144 4145 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 4146 return; 4147 4148 for (i = 0; i < priv->params.num_channels; i++) { 4149 if (value) 4150 mlx5e_disable_tx_dma(&priv->channel[i]); 4151 else 4152 mlx5e_enable_tx_dma(&priv->channel[i]); 4153 } 4154 } 4155 4156 void 4157 mlx5e_modify_rx_dma(struct mlx5e_priv *priv, uint8_t value) 4158 { 4159 int i; 4160 4161 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0) 4162 return; 4163 4164 for (i = 0; i < priv->params.num_channels; i++) { 4165 if (value) 4166 mlx5e_disable_rx_dma(&priv->channel[i]); 4167 else 4168 mlx5e_enable_rx_dma(&priv->channel[i]); 4169 } 4170 } 4171 4172 static void 4173 mlx5e_add_hw_stats(struct mlx5e_priv *priv) 4174 { 4175 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw), 4176 OID_AUTO, "fw_version", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, 4177 priv, 0, sysctl_firmware, "A", "HCA firmware version"); 4178 4179 SYSCTL_ADD_STRING(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw), 4180 OID_AUTO, "board_id", CTLFLAG_RD, priv->mdev->board_id, 0, 4181 "Board ID"); 4182 } 4183 4184 static int 4185 mlx5e_sysctl_tx_priority_flow_control(SYSCTL_HANDLER_ARGS) 4186 { 4187 struct mlx5e_priv *priv = arg1; 4188 uint8_t temp[MLX5E_MAX_PRIORITY]; 4189 uint32_t tx_pfc; 4190 int err; 4191 int i; 4192 4193 PRIV_LOCK(priv); 4194 4195 tx_pfc = priv->params.tx_priority_flow_control; 4196 4197 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) 4198 temp[i] = (tx_pfc >> i) & 1; 4199 4200 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY); 4201 if (err || !req->newptr) 4202 goto done; 4203 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY); 4204 if (err) 4205 goto done; 4206 4207 priv->params.tx_priority_flow_control = 0; 4208 4209 /* range check input value */ 4210 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) { 4211 if (temp[i] > 1) { 4212 err = ERANGE; 4213 goto done; 4214 } 4215 priv->params.tx_priority_flow_control |= (temp[i] << i); 4216 } 4217 4218 /* check if update is required */ 4219 if (tx_pfc != priv->params.tx_priority_flow_control) 4220 err = -mlx5e_set_port_pfc(priv); 4221 done: 4222 if (err != 0) 4223 priv->params.tx_priority_flow_control= tx_pfc; 4224 PRIV_UNLOCK(priv); 4225 4226 return (err); 4227 } 4228 4229 static int 4230 mlx5e_sysctl_rx_priority_flow_control(SYSCTL_HANDLER_ARGS) 4231 { 4232 struct mlx5e_priv *priv = arg1; 4233 uint8_t temp[MLX5E_MAX_PRIORITY]; 4234 uint32_t rx_pfc; 4235 int err; 4236 int i; 4237 4238 PRIV_LOCK(priv); 4239 4240 rx_pfc = priv->params.rx_priority_flow_control; 4241 4242 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) 4243 temp[i] = (rx_pfc >> i) & 1; 4244 4245 err = SYSCTL_OUT(req, temp, MLX5E_MAX_PRIORITY); 4246 if (err || !req->newptr) 4247 goto done; 4248 err = SYSCTL_IN(req, temp, MLX5E_MAX_PRIORITY); 4249 if (err) 4250 goto done; 4251 4252 priv->params.rx_priority_flow_control = 0; 4253 4254 /* range check input value */ 4255 for (i = 0; i != MLX5E_MAX_PRIORITY; i++) { 4256 if (temp[i] > 1) { 4257 err = ERANGE; 4258 goto done; 4259 } 4260 priv->params.rx_priority_flow_control |= (temp[i] << i); 4261 } 4262 4263 /* check if update is required */ 4264 if (rx_pfc != priv->params.rx_priority_flow_control) { 4265 err = -mlx5e_set_port_pfc(priv); 4266 if (err == 0 && priv->sw_is_port_buf_owner) 4267 err = mlx5e_update_buf_lossy(priv); 4268 } 4269 done: 4270 if (err != 0) 4271 priv->params.rx_priority_flow_control= rx_pfc; 4272 PRIV_UNLOCK(priv); 4273 4274 return (err); 4275 } 4276 4277 static void 4278 mlx5e_setup_pauseframes(struct mlx5e_priv *priv) 4279 { 4280 int error; 4281 4282 /* enable pauseframes by default */ 4283 priv->params.tx_pauseframe_control = 1; 4284 priv->params.rx_pauseframe_control = 1; 4285 4286 /* disable ports flow control, PFC, by default */ 4287 priv->params.tx_priority_flow_control = 0; 4288 priv->params.rx_priority_flow_control = 0; 4289 4290 /* register pauseframe SYSCTLs */ 4291 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4292 OID_AUTO, "tx_pauseframe_control", CTLFLAG_RDTUN, 4293 &priv->params.tx_pauseframe_control, 0, 4294 "Set to enable TX pause frames. Clear to disable."); 4295 4296 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4297 OID_AUTO, "rx_pauseframe_control", CTLFLAG_RDTUN, 4298 &priv->params.rx_pauseframe_control, 0, 4299 "Set to enable RX pause frames. Clear to disable."); 4300 4301 /* register priority flow control, PFC, SYSCTLs */ 4302 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4303 OID_AUTO, "tx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN | 4304 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_tx_priority_flow_control, "CU", 4305 "Set to enable TX ports flow control frames for priorities 0..7. Clear to disable."); 4306 4307 SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4308 OID_AUTO, "rx_priority_flow_control", CTLTYPE_U8 | CTLFLAG_RWTUN | 4309 CTLFLAG_MPSAFE, priv, 0, &mlx5e_sysctl_rx_priority_flow_control, "CU", 4310 "Set to enable RX ports flow control frames for priorities 0..7. Clear to disable."); 4311 4312 PRIV_LOCK(priv); 4313 4314 /* range check */ 4315 priv->params.tx_pauseframe_control = 4316 priv->params.tx_pauseframe_control ? 1 : 0; 4317 priv->params.rx_pauseframe_control = 4318 priv->params.rx_pauseframe_control ? 1 : 0; 4319 4320 /* update firmware */ 4321 error = mlx5e_set_port_pause_and_pfc(priv); 4322 if (error == -EINVAL) { 4323 mlx5_en_err(priv->ifp, 4324 "Global pauseframes must be disabled before enabling PFC.\n"); 4325 priv->params.rx_priority_flow_control = 0; 4326 priv->params.tx_priority_flow_control = 0; 4327 4328 /* update firmware */ 4329 (void) mlx5e_set_port_pause_and_pfc(priv); 4330 } 4331 PRIV_UNLOCK(priv); 4332 } 4333 4334 static int 4335 mlx5e_ul_snd_tag_alloc(struct ifnet *ifp, 4336 union if_snd_tag_alloc_params *params, 4337 struct m_snd_tag **ppmt) 4338 { 4339 struct mlx5e_priv *priv; 4340 struct mlx5e_channel *pch; 4341 4342 priv = ifp->if_softc; 4343 4344 if (unlikely(priv->gone || params->hdr.flowtype == M_HASHTYPE_NONE)) { 4345 return (EOPNOTSUPP); 4346 } else { 4347 /* keep this code synced with mlx5e_select_queue() */ 4348 u32 ch = priv->params.num_channels; 4349 #ifdef RSS 4350 u32 temp; 4351 4352 if (rss_hash2bucket(params->hdr.flowid, 4353 params->hdr.flowtype, &temp) == 0) 4354 ch = temp % ch; 4355 else 4356 #endif 4357 ch = (params->hdr.flowid % 128) % ch; 4358 4359 /* 4360 * NOTE: The channels array is only freed at detach 4361 * and it safe to return a pointer to the send tag 4362 * inside the channels structure as long as we 4363 * reference the priv. 4364 */ 4365 pch = priv->channel + ch; 4366 4367 /* check if send queue is not running */ 4368 if (unlikely(pch->sq[0].running == 0)) 4369 return (ENXIO); 4370 m_snd_tag_ref(&pch->tag); 4371 *ppmt = &pch->tag; 4372 return (0); 4373 } 4374 } 4375 4376 static int 4377 mlx5e_ul_snd_tag_query(struct m_snd_tag *pmt, union if_snd_tag_query_params *params) 4378 { 4379 struct mlx5e_channel *pch = 4380 container_of(pmt, struct mlx5e_channel, tag); 4381 4382 params->unlimited.max_rate = -1ULL; 4383 params->unlimited.queue_level = mlx5e_sq_queue_level(&pch->sq[0]); 4384 return (0); 4385 } 4386 4387 static void 4388 mlx5e_ul_snd_tag_free(struct m_snd_tag *pmt) 4389 { 4390 struct mlx5e_channel *pch = 4391 container_of(pmt, struct mlx5e_channel, tag); 4392 4393 complete(&pch->completion); 4394 } 4395 4396 static int 4397 mlx5e_snd_tag_alloc(struct ifnet *ifp, 4398 union if_snd_tag_alloc_params *params, 4399 struct m_snd_tag **ppmt) 4400 { 4401 4402 switch (params->hdr.type) { 4403 #ifdef RATELIMIT 4404 case IF_SND_TAG_TYPE_RATE_LIMIT: 4405 return (mlx5e_rl_snd_tag_alloc(ifp, params, ppmt)); 4406 #ifdef KERN_TLS 4407 case IF_SND_TAG_TYPE_TLS_RATE_LIMIT: 4408 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt)); 4409 #endif 4410 #endif 4411 case IF_SND_TAG_TYPE_UNLIMITED: 4412 return (mlx5e_ul_snd_tag_alloc(ifp, params, ppmt)); 4413 #ifdef KERN_TLS 4414 case IF_SND_TAG_TYPE_TLS: 4415 return (mlx5e_tls_snd_tag_alloc(ifp, params, ppmt)); 4416 case IF_SND_TAG_TYPE_TLS_RX: 4417 return (mlx5e_tls_rx_snd_tag_alloc(ifp, params, ppmt)); 4418 #endif 4419 default: 4420 return (EOPNOTSUPP); 4421 } 4422 } 4423 4424 #ifdef RATELIMIT 4425 #define NUM_HDWR_RATES_MLX 13 4426 static const uint64_t adapter_rates_mlx[NUM_HDWR_RATES_MLX] = { 4427 135375, /* 1,083,000 */ 4428 180500, /* 1,444,000 */ 4429 270750, /* 2,166,000 */ 4430 361000, /* 2,888,000 */ 4431 541500, /* 4,332,000 */ 4432 721875, /* 5,775,000 */ 4433 1082875, /* 8,663,000 */ 4434 1443875, /* 11,551,000 */ 4435 2165750, /* 17,326,000 */ 4436 2887750, /* 23,102,000 */ 4437 4331625, /* 34,653,000 */ 4438 5775500, /* 46,204,000 */ 4439 8663125 /* 69,305,000 */ 4440 }; 4441 4442 static void 4443 mlx5e_ratelimit_query(struct ifnet *ifp __unused, struct if_ratelimit_query_results *q) 4444 { 4445 /* 4446 * This function needs updating by the driver maintainer! 4447 * For the MLX card there are currently (ConectX-4?) 13 4448 * pre-set rates and others i.e. ConnectX-5, 6, 7?? 4449 * 4450 * This will change based on later adapters 4451 * and this code should be updated to look at ifp 4452 * and figure out the specific adapter type 4453 * settings i.e. how many rates as well 4454 * as if they are fixed (as is shown here) or 4455 * if they are dynamic (example chelsio t4). Also if there 4456 * is a maximum number of flows that the adapter 4457 * can handle that too needs to be updated in 4458 * the max_flows field. 4459 */ 4460 q->rate_table = adapter_rates_mlx; 4461 q->flags = RT_IS_FIXED_TABLE; 4462 q->max_flows = 0; /* mlx has no limit */ 4463 q->number_of_rates = NUM_HDWR_RATES_MLX; 4464 q->min_segment_burst = 1; 4465 } 4466 #endif 4467 4468 static void 4469 mlx5e_ifm_add(struct mlx5e_priv *priv, int type) 4470 { 4471 ifmedia_add(&priv->media, type | IFM_ETHER, 0, NULL); 4472 ifmedia_add(&priv->media, type | IFM_ETHER | 4473 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL); 4474 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_RXPAUSE, 0, NULL); 4475 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_ETH_TXPAUSE, 0, NULL); 4476 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX, 0, NULL); 4477 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4478 IFM_ETH_RXPAUSE, 0, NULL); 4479 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4480 IFM_ETH_TXPAUSE, 0, NULL); 4481 ifmedia_add(&priv->media, type | IFM_ETHER | IFM_FDX | 4482 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL); 4483 } 4484 4485 static void * 4486 mlx5e_create_ifp(struct mlx5_core_dev *mdev) 4487 { 4488 struct ifnet *ifp; 4489 struct mlx5e_priv *priv; 4490 u8 dev_addr[ETHER_ADDR_LEN] __aligned(4); 4491 struct sysctl_oid_list *child; 4492 int ncv = mdev->priv.eq_table.num_comp_vectors; 4493 char unit[16]; 4494 struct pfil_head_args pa; 4495 int err; 4496 u32 eth_proto_cap; 4497 u32 out[MLX5_ST_SZ_DW(ptys_reg)]; 4498 bool ext; 4499 struct media media_entry = {}; 4500 4501 if (mlx5e_check_required_hca_cap(mdev)) { 4502 mlx5_core_dbg(mdev, "mlx5e_check_required_hca_cap() failed\n"); 4503 return (NULL); 4504 } 4505 4506 /* 4507 * Try to allocate the priv and make room for worst-case 4508 * number of channel structures: 4509 */ 4510 priv = malloc_domainset(sizeof(*priv) + 4511 (sizeof(priv->channel[0]) * mdev->priv.eq_table.num_comp_vectors), 4512 M_MLX5EN, mlx5_dev_domainset(mdev), M_WAITOK | M_ZERO); 4513 4514 ifp = priv->ifp = if_alloc_dev(IFT_ETHER, mdev->pdev->dev.bsddev); 4515 if (ifp == NULL) { 4516 mlx5_core_err(mdev, "if_alloc() failed\n"); 4517 goto err_free_priv; 4518 } 4519 /* setup all static fields */ 4520 if (mlx5e_priv_static_init(priv, mdev, mdev->priv.eq_table.num_comp_vectors)) { 4521 mlx5_core_err(mdev, "mlx5e_priv_static_init() failed\n"); 4522 goto err_free_ifp; 4523 } 4524 4525 ifp->if_softc = priv; 4526 if_initname(ifp, "mce", device_get_unit(mdev->pdev->dev.bsddev)); 4527 ifp->if_mtu = ETHERMTU; 4528 ifp->if_init = mlx5e_open; 4529 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | 4530 IFF_KNOWSEPOCH; 4531 ifp->if_ioctl = mlx5e_ioctl; 4532 ifp->if_transmit = mlx5e_xmit; 4533 ifp->if_qflush = if_qflush; 4534 ifp->if_get_counter = mlx5e_get_counter; 4535 ifp->if_snd.ifq_maxlen = ifqmaxlen; 4536 /* 4537 * Set driver features 4538 */ 4539 ifp->if_capabilities |= IFCAP_NV; 4540 ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6; 4541 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING; 4542 ifp->if_capabilities |= IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWFILTER; 4543 ifp->if_capabilities |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU; 4544 ifp->if_capabilities |= IFCAP_LRO; 4545 ifp->if_capabilities |= IFCAP_TSO | IFCAP_VLAN_HWTSO; 4546 ifp->if_capabilities |= IFCAP_HWSTATS | IFCAP_HWRXTSTMP; 4547 ifp->if_capabilities |= IFCAP_MEXTPG; 4548 ifp->if_capabilities |= IFCAP_TXTLS4 | IFCAP_TXTLS6; 4549 #ifdef RATELIMIT 4550 ifp->if_capabilities |= IFCAP_TXRTLMT | IFCAP_TXTLS_RTLMT; 4551 #endif 4552 ifp->if_capabilities |= IFCAP_VXLAN_HWCSUM | IFCAP_VXLAN_HWTSO; 4553 ifp->if_capabilities2 |= IFCAP2_RXTLS4 | IFCAP2_RXTLS6; 4554 ifp->if_snd_tag_alloc = mlx5e_snd_tag_alloc; 4555 #ifdef RATELIMIT 4556 ifp->if_ratelimit_query = mlx5e_ratelimit_query; 4557 #endif 4558 /* set TSO limits so that we don't have to drop TX packets */ 4559 ifp->if_hw_tsomax = MLX5E_MAX_TX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN); 4560 ifp->if_hw_tsomaxsegcount = MLX5E_MAX_TX_MBUF_FRAGS - 1 /* hdr */; 4561 ifp->if_hw_tsomaxsegsize = MLX5E_MAX_TX_MBUF_SIZE; 4562 4563 ifp->if_capenable = ifp->if_capabilities; 4564 ifp->if_capenable2 = ifp->if_capabilities2; 4565 ifp->if_hwassist = 0; 4566 if (ifp->if_capenable & IFCAP_TSO) 4567 ifp->if_hwassist |= CSUM_TSO; 4568 if (ifp->if_capenable & IFCAP_TXCSUM) 4569 ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP | CSUM_IP); 4570 if (ifp->if_capenable & IFCAP_TXCSUM_IPV6) 4571 ifp->if_hwassist |= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6); 4572 if (ifp->if_capabilities & IFCAP_VXLAN_HWCSUM) 4573 ifp->if_hwassist |= CSUM_INNER_IP6_UDP | CSUM_INNER_IP6_TCP | 4574 CSUM_INNER_IP | CSUM_INNER_IP_UDP | CSUM_INNER_IP_TCP | 4575 CSUM_ENCAP_VXLAN; 4576 if (ifp->if_capabilities & IFCAP_VXLAN_HWTSO) 4577 ifp->if_hwassist |= CSUM_INNER_IP6_TSO | CSUM_INNER_IP_TSO; 4578 4579 /* ifnet sysctl tree */ 4580 sysctl_ctx_init(&priv->sysctl_ctx); 4581 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_dev), 4582 OID_AUTO, ifp->if_dname, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4583 "MLX5 ethernet - interface name"); 4584 if (priv->sysctl_ifnet == NULL) { 4585 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4586 goto err_free_sysctl; 4587 } 4588 snprintf(unit, sizeof(unit), "%d", ifp->if_dunit); 4589 priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4590 OID_AUTO, unit, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4591 "MLX5 ethernet - interface unit"); 4592 if (priv->sysctl_ifnet == NULL) { 4593 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4594 goto err_free_sysctl; 4595 } 4596 4597 /* HW sysctl tree */ 4598 child = SYSCTL_CHILDREN(device_get_sysctl_tree(mdev->pdev->dev.bsddev)); 4599 priv->sysctl_hw = SYSCTL_ADD_NODE(&priv->sysctl_ctx, child, 4600 OID_AUTO, "hw", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 4601 "MLX5 ethernet dev hw"); 4602 if (priv->sysctl_hw == NULL) { 4603 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n"); 4604 goto err_free_sysctl; 4605 } 4606 4607 err = mlx5e_build_ifp_priv(mdev, priv, ncv); 4608 if (err) { 4609 mlx5_core_err(mdev, "mlx5e_build_ifp_priv() failed (%d)\n", err); 4610 goto err_free_sysctl; 4611 } 4612 4613 /* reuse mlx5core's watchdog workqueue */ 4614 priv->wq = mdev->priv.health.wq_watchdog; 4615 4616 err = mlx5_core_alloc_pd(mdev, &priv->pdn, 0); 4617 if (err) { 4618 mlx5_en_err(ifp, "mlx5_core_alloc_pd failed, %d\n", err); 4619 goto err_free_wq; 4620 } 4621 err = mlx5_alloc_transport_domain(mdev, &priv->tdn, 0); 4622 if (err) { 4623 mlx5_en_err(ifp, 4624 "mlx5_alloc_transport_domain failed, %d\n", err); 4625 goto err_dealloc_pd; 4626 } 4627 err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr); 4628 if (err) { 4629 mlx5_en_err(ifp, "mlx5e_create_mkey failed, %d\n", err); 4630 goto err_dealloc_transport_domain; 4631 } 4632 mlx5_query_nic_vport_mac_address(priv->mdev, 0, dev_addr); 4633 4634 /* check if we should generate a random MAC address */ 4635 if (MLX5_CAP_GEN(priv->mdev, vport_group_manager) == 0 && 4636 is_zero_ether_addr(dev_addr)) { 4637 random_ether_addr(dev_addr); 4638 mlx5_en_err(ifp, "Assigned random MAC address\n"); 4639 } 4640 4641 err = mlx5e_rl_init(priv); 4642 if (err) { 4643 mlx5_en_err(ifp, "mlx5e_rl_init failed, %d\n", err); 4644 goto err_create_mkey; 4645 } 4646 4647 err = mlx5e_tls_init(priv); 4648 if (err) { 4649 if_printf(ifp, "%s: mlx5e_tls_init failed\n", __func__); 4650 goto err_rl_init; 4651 } 4652 4653 err = mlx5e_open_drop_rq(priv, &priv->drop_rq); 4654 if (err) { 4655 if_printf(ifp, "%s: mlx5e_open_drop_rq failed (%d)\n", __func__, err); 4656 goto err_tls_init; 4657 } 4658 4659 err = mlx5e_open_rqts(priv); 4660 if (err) { 4661 if_printf(ifp, "%s: mlx5e_open_rqts failed (%d)\n", __func__, err); 4662 goto err_open_drop_rq; 4663 } 4664 4665 err = mlx5e_open_tirs(priv); 4666 if (err) { 4667 mlx5_en_err(ifp, "mlx5e_open_tirs() failed, %d\n", err); 4668 goto err_open_rqts; 4669 } 4670 4671 err = mlx5e_open_flow_tables(priv); 4672 if (err) { 4673 if_printf(ifp, "%s: mlx5e_open_flow_tables failed (%d)\n", __func__, err); 4674 goto err_open_tirs; 4675 } 4676 4677 err = mlx5e_tls_rx_init(priv); 4678 if (err) { 4679 if_printf(ifp, "%s: mlx5e_tls_rx_init() failed, %d\n", __func__, err); 4680 goto err_open_flow_tables; 4681 } 4682 4683 /* set default MTU */ 4684 mlx5e_set_dev_port_mtu(ifp, ifp->if_mtu); 4685 4686 /* Set default media status */ 4687 priv->media_status_last = IFM_AVALID; 4688 priv->media_active_last = IFM_ETHER | IFM_AUTO | IFM_FDX; 4689 4690 /* setup default pauseframes configuration */ 4691 mlx5e_setup_pauseframes(priv); 4692 4693 /* Setup supported medias */ 4694 if (!mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, 1)) { 4695 ext = MLX5_CAP_PCAM_FEATURE(mdev, 4696 ptys_extended_ethernet); 4697 eth_proto_cap = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, 4698 eth_proto_capability); 4699 } else { 4700 ext = false; 4701 eth_proto_cap = 0; 4702 mlx5_en_err(ifp, "Query port media capability failed, %d\n", err); 4703 } 4704 4705 ifmedia_init(&priv->media, IFM_IMASK, 4706 mlx5e_media_change, mlx5e_media_status); 4707 4708 if (ext) { 4709 for (unsigned i = 0; i != MLX5E_EXT_LINK_SPEEDS_NUMBER; i++) { 4710 /* check if hardware has the right capability */ 4711 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap) 4712 continue; 4713 for (unsigned j = 0; j != MLX5E_CABLE_TYPE_NUMBER; j++) { 4714 media_entry = mlx5e_ext_mode_table[i][j]; 4715 if (media_entry.subtype == 0) 4716 continue; 4717 /* check if this subtype was already added */ 4718 for (unsigned k = 0; k != i; k++) { 4719 /* check if hardware has the right capability */ 4720 if (MLX5E_PROT_MASK(k) & ~eth_proto_cap) 4721 continue; 4722 for (unsigned m = 0; m != MLX5E_CABLE_TYPE_NUMBER; m++) { 4723 if (media_entry.subtype == mlx5e_ext_mode_table[k][m].subtype) 4724 goto skip_ext_media; 4725 } 4726 } 4727 mlx5e_ifm_add(priv, media_entry.subtype); 4728 skip_ext_media:; 4729 } 4730 } 4731 } else { 4732 for (unsigned i = 0; i != MLX5E_LINK_SPEEDS_NUMBER; i++) { 4733 media_entry = mlx5e_mode_table[i]; 4734 if (media_entry.subtype == 0) 4735 continue; 4736 if (MLX5E_PROT_MASK(i) & ~eth_proto_cap) 4737 continue; 4738 /* check if this subtype was already added */ 4739 for (unsigned k = 0; k != i; k++) { 4740 if (media_entry.subtype == mlx5e_mode_table[k].subtype) 4741 goto skip_media; 4742 } 4743 mlx5e_ifm_add(priv, media_entry.subtype); 4744 4745 /* NOTE: 10G ER and LR shares the same entry */ 4746 if (media_entry.subtype == IFM_10G_ER) 4747 mlx5e_ifm_add(priv, IFM_10G_LR); 4748 skip_media:; 4749 } 4750 } 4751 4752 mlx5e_ifm_add(priv, IFM_AUTO); 4753 4754 /* Set autoselect by default */ 4755 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO | IFM_FDX | 4756 IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE); 4757 4758 DEBUGNET_SET(ifp, mlx5_en); 4759 4760 ether_ifattach(ifp, dev_addr); 4761 4762 /* Register for VLAN events */ 4763 priv->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 4764 mlx5e_vlan_rx_add_vid, priv, EVENTHANDLER_PRI_FIRST); 4765 priv->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 4766 mlx5e_vlan_rx_kill_vid, priv, EVENTHANDLER_PRI_FIRST); 4767 4768 /* Register for VxLAN events */ 4769 priv->vxlan_start = EVENTHANDLER_REGISTER(vxlan_start, 4770 mlx5e_vxlan_start, priv, EVENTHANDLER_PRI_ANY); 4771 priv->vxlan_stop = EVENTHANDLER_REGISTER(vxlan_stop, 4772 mlx5e_vxlan_stop, priv, EVENTHANDLER_PRI_ANY); 4773 4774 /* Link is down by default */ 4775 if_link_state_change(ifp, LINK_STATE_DOWN); 4776 4777 mlx5e_enable_async_events(priv); 4778 4779 mlx5e_add_hw_stats(priv); 4780 4781 mlx5e_create_stats(&priv->stats.vport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4782 "vstats", mlx5e_vport_stats_desc, MLX5E_VPORT_STATS_NUM, 4783 priv->stats.vport.arg); 4784 4785 mlx5e_create_stats(&priv->stats.pport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4786 "pstats", mlx5e_pport_stats_desc, MLX5E_PPORT_STATS_NUM, 4787 priv->stats.pport.arg); 4788 4789 mlx5e_create_ethtool(priv); 4790 4791 mtx_lock(&priv->async_events_mtx); 4792 mlx5e_update_stats(priv); 4793 mtx_unlock(&priv->async_events_mtx); 4794 4795 SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet), 4796 OID_AUTO, "rx_clbr_done", CTLFLAG_RD, 4797 &priv->clbr_done, 0, 4798 "RX timestamps calibration state"); 4799 callout_init(&priv->tstmp_clbr, 1); 4800 mlx5e_reset_calibration_callout(priv); 4801 4802 pa.pa_version = PFIL_VERSION; 4803 pa.pa_flags = PFIL_IN; 4804 pa.pa_type = PFIL_TYPE_ETHERNET; 4805 pa.pa_headname = ifp->if_xname; 4806 priv->pfil = pfil_head_register(&pa); 4807 4808 PRIV_LOCK(priv); 4809 err = mlx5e_open_flow_rules(priv); 4810 if (err) { 4811 mlx5_en_err(ifp, 4812 "mlx5e_open_flow_rules() failed, %d (ignored)\n", err); 4813 } 4814 PRIV_UNLOCK(priv); 4815 4816 return (priv); 4817 4818 err_open_flow_tables: 4819 mlx5e_close_flow_tables(priv); 4820 4821 err_open_tirs: 4822 mlx5e_close_tirs(priv); 4823 4824 err_open_rqts: 4825 mlx5e_close_rqts(priv); 4826 4827 err_open_drop_rq: 4828 mlx5e_close_drop_rq(&priv->drop_rq); 4829 4830 err_tls_init: 4831 mlx5e_tls_cleanup(priv); 4832 4833 err_rl_init: 4834 mlx5e_rl_cleanup(priv); 4835 4836 err_create_mkey: 4837 mlx5_core_destroy_mkey(priv->mdev, &priv->mr); 4838 4839 err_dealloc_transport_domain: 4840 mlx5_dealloc_transport_domain(mdev, priv->tdn, 0); 4841 4842 err_dealloc_pd: 4843 mlx5_core_dealloc_pd(mdev, priv->pdn, 0); 4844 4845 err_free_wq: 4846 flush_workqueue(priv->wq); 4847 4848 err_free_sysctl: 4849 sysctl_ctx_free(&priv->sysctl_ctx); 4850 if (priv->sysctl_debug) 4851 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx); 4852 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors); 4853 4854 err_free_ifp: 4855 if_free(ifp); 4856 4857 err_free_priv: 4858 free(priv, M_MLX5EN); 4859 return (NULL); 4860 } 4861 4862 static void 4863 mlx5e_destroy_ifp(struct mlx5_core_dev *mdev, void *vpriv) 4864 { 4865 struct mlx5e_priv *priv = vpriv; 4866 struct ifnet *ifp = priv->ifp; 4867 4868 /* don't allow more IOCTLs */ 4869 priv->gone = 1; 4870 4871 /* XXX wait a bit to allow IOCTL handlers to complete */ 4872 pause("W", hz); 4873 4874 #ifdef RATELIMIT 4875 /* 4876 * The kernel can have reference(s) via the m_snd_tag's into 4877 * the ratelimit channels, and these must go away before 4878 * detaching: 4879 */ 4880 while (READ_ONCE(priv->rl.stats.tx_active_connections) != 0) { 4881 mlx5_en_err(priv->ifp, 4882 "Waiting for all ratelimit connections to terminate\n"); 4883 pause("W", hz); 4884 } 4885 #endif 4886 4887 #ifdef KERN_TLS 4888 /* wait for all TLS tags to get freed */ 4889 while (priv->tls.init != 0 && 4890 uma_zone_get_cur(priv->tls.zone) != 0) { 4891 mlx5_en_err(priv->ifp, 4892 "Waiting for all TLS connections to terminate\n"); 4893 pause("W", hz); 4894 } 4895 4896 /* wait for all TLS RX tags to get freed */ 4897 while (priv->tls_rx.init != 0 && 4898 uma_zone_get_cur(priv->tls_rx.zone) != 0) { 4899 mlx5_en_err(priv->ifp, 4900 "Waiting for all TLS RX connections to terminate\n"); 4901 pause("W", hz); 4902 } 4903 #endif 4904 /* wait for all unlimited send tags to complete */ 4905 mlx5e_priv_wait_for_completion(priv, mdev->priv.eq_table.num_comp_vectors); 4906 4907 /* stop watchdog timer */ 4908 callout_drain(&priv->watchdog); 4909 4910 callout_drain(&priv->tstmp_clbr); 4911 4912 if (priv->vlan_attach != NULL) 4913 EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach); 4914 if (priv->vlan_detach != NULL) 4915 EVENTHANDLER_DEREGISTER(vlan_unconfig, priv->vlan_detach); 4916 if (priv->vxlan_start != NULL) 4917 EVENTHANDLER_DEREGISTER(vxlan_start, priv->vxlan_start); 4918 if (priv->vxlan_stop != NULL) 4919 EVENTHANDLER_DEREGISTER(vxlan_stop, priv->vxlan_stop); 4920 4921 /* make sure device gets closed */ 4922 PRIV_LOCK(priv); 4923 mlx5e_close_locked(ifp); 4924 mlx5e_close_flow_rules(priv); 4925 PRIV_UNLOCK(priv); 4926 4927 /* deregister pfil */ 4928 if (priv->pfil != NULL) { 4929 pfil_head_unregister(priv->pfil); 4930 priv->pfil = NULL; 4931 } 4932 4933 /* unregister device */ 4934 ifmedia_removeall(&priv->media); 4935 ether_ifdetach(ifp); 4936 4937 mlx5e_tls_rx_cleanup(priv); 4938 mlx5e_close_flow_tables(priv); 4939 mlx5e_close_tirs(priv); 4940 mlx5e_close_rqts(priv); 4941 mlx5e_close_drop_rq(&priv->drop_rq); 4942 mlx5e_tls_cleanup(priv); 4943 mlx5e_rl_cleanup(priv); 4944 4945 /* destroy all remaining sysctl nodes */ 4946 sysctl_ctx_free(&priv->stats.vport.ctx); 4947 sysctl_ctx_free(&priv->stats.pport.ctx); 4948 if (priv->sysctl_debug) 4949 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx); 4950 sysctl_ctx_free(&priv->sysctl_ctx); 4951 4952 mlx5_core_destroy_mkey(priv->mdev, &priv->mr); 4953 mlx5_dealloc_transport_domain(priv->mdev, priv->tdn, 0); 4954 mlx5_core_dealloc_pd(priv->mdev, priv->pdn, 0); 4955 mlx5e_disable_async_events(priv); 4956 flush_workqueue(priv->wq); 4957 mlx5e_priv_static_destroy(priv, mdev, mdev->priv.eq_table.num_comp_vectors); 4958 if_free(ifp); 4959 free(priv, M_MLX5EN); 4960 } 4961 4962 #ifdef DEBUGNET 4963 static void 4964 mlx5_en_debugnet_init(struct ifnet *dev, int *nrxr, int *ncl, int *clsize) 4965 { 4966 struct mlx5e_priv *priv = if_getsoftc(dev); 4967 4968 PRIV_LOCK(priv); 4969 *nrxr = priv->params.num_channels; 4970 *ncl = DEBUGNET_MAX_IN_FLIGHT; 4971 *clsize = MLX5E_MAX_RX_BYTES; 4972 PRIV_UNLOCK(priv); 4973 } 4974 4975 static void 4976 mlx5_en_debugnet_event(struct ifnet *dev, enum debugnet_ev event) 4977 { 4978 } 4979 4980 static int 4981 mlx5_en_debugnet_transmit(struct ifnet *dev, struct mbuf *m) 4982 { 4983 struct mlx5e_priv *priv = if_getsoftc(dev); 4984 struct mlx5e_sq *sq; 4985 int err; 4986 4987 if ((if_getdrvflags(dev) & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 4988 IFF_DRV_RUNNING || (priv->media_status_last & IFM_ACTIVE) == 0) 4989 return (ENOENT); 4990 4991 sq = &priv->channel[0].sq[0]; 4992 4993 if (sq->running == 0) { 4994 m_freem(m); 4995 return (ENOENT); 4996 } 4997 4998 if (mlx5e_sq_xmit(sq, &m) != 0) { 4999 m_freem(m); 5000 err = ENOBUFS; 5001 } else { 5002 err = 0; 5003 } 5004 5005 mlx5e_tx_notify_hw(sq, true); 5006 5007 return (err); 5008 } 5009 5010 static int 5011 mlx5_en_debugnet_poll(struct ifnet *dev, int count) 5012 { 5013 struct mlx5e_priv *priv = if_getsoftc(dev); 5014 5015 if ((if_getdrvflags(dev) & IFF_DRV_RUNNING) == 0 || 5016 (priv->media_status_last & IFM_ACTIVE) == 0) 5017 return (ENOENT); 5018 5019 mlx5_poll_interrupts(priv->mdev); 5020 5021 return (0); 5022 } 5023 #endif /* DEBUGNET */ 5024 5025 static void * 5026 mlx5e_get_ifp(void *vpriv) 5027 { 5028 struct mlx5e_priv *priv = vpriv; 5029 5030 return (priv->ifp); 5031 } 5032 5033 static struct mlx5_interface mlx5e_interface = { 5034 .add = mlx5e_create_ifp, 5035 .remove = mlx5e_destroy_ifp, 5036 .event = mlx5e_async_event, 5037 .protocol = MLX5_INTERFACE_PROTOCOL_ETH, 5038 .get_dev = mlx5e_get_ifp, 5039 }; 5040 5041 void 5042 mlx5e_init(void) 5043 { 5044 mlx5_register_interface(&mlx5e_interface); 5045 } 5046 5047 void 5048 mlx5e_cleanup(void) 5049 { 5050 mlx5_unregister_interface(&mlx5e_interface); 5051 } 5052 5053 module_init_order(mlx5e_init, SI_ORDER_SIXTH); 5054 module_exit_order(mlx5e_cleanup, SI_ORDER_SIXTH); 5055 5056 MODULE_DEPEND(mlx5en, linuxkpi, 1, 1, 1); 5057 MODULE_DEPEND(mlx5en, mlx5, 1, 1, 1); 5058 MODULE_VERSION(mlx5en, 1); 5059