1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005, 2006, 2007, 2008, 2014 Mellanox Technologies. All rights reserved. 4 * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #include <linux/sched.h> 36 #include <linux/slab.h> 37 #include <linux/module.h> 38 #include <linux/pci.h> 39 #include <linux/errno.h> 40 #include <linux/delay.h> 41 42 #include <dev/mlx4/cmd.h> 43 #include <dev/mlx4/device.h> 44 #include <linux/semaphore.h> 45 #include <rdma/ib_smi.h> 46 47 #include <asm/io.h> 48 #include <linux/ktime.h> 49 50 #include "mlx4.h" 51 #include "fw.h" 52 #include "fw_qos.h" 53 54 #define CMD_POLL_TOKEN 0xffff 55 #define INBOX_MASK 0xffffffffffffff00ULL 56 57 #define CMD_CHAN_VER 1 58 #define CMD_CHAN_IF_REV 1 59 60 enum { 61 /* command completed successfully: */ 62 CMD_STAT_OK = 0x00, 63 /* Internal error (such as a bus error) occurred while processing command: */ 64 CMD_STAT_INTERNAL_ERR = 0x01, 65 /* Operation/command not supported or opcode modifier not supported: */ 66 CMD_STAT_BAD_OP = 0x02, 67 /* Parameter not supported or parameter out of range: */ 68 CMD_STAT_BAD_PARAM = 0x03, 69 /* System not enabled or bad system state: */ 70 CMD_STAT_BAD_SYS_STATE = 0x04, 71 /* Attempt to access reserved or unallocaterd resource: */ 72 CMD_STAT_BAD_RESOURCE = 0x05, 73 /* Requested resource is currently executing a command, or is otherwise busy: */ 74 CMD_STAT_RESOURCE_BUSY = 0x06, 75 /* Required capability exceeds device limits: */ 76 CMD_STAT_EXCEED_LIM = 0x08, 77 /* Resource is not in the appropriate state or ownership: */ 78 CMD_STAT_BAD_RES_STATE = 0x09, 79 /* Index out of range: */ 80 CMD_STAT_BAD_INDEX = 0x0a, 81 /* FW image corrupted: */ 82 CMD_STAT_BAD_NVMEM = 0x0b, 83 /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */ 84 CMD_STAT_ICM_ERROR = 0x0c, 85 /* Attempt to modify a QP/EE which is not in the presumed state: */ 86 CMD_STAT_BAD_QP_STATE = 0x10, 87 /* Bad segment parameters (Address/Size): */ 88 CMD_STAT_BAD_SEG_PARAM = 0x20, 89 /* Memory Region has Memory Windows bound to: */ 90 CMD_STAT_REG_BOUND = 0x21, 91 /* HCA local attached memory not present: */ 92 CMD_STAT_LAM_NOT_PRE = 0x22, 93 /* Bad management packet (silently discarded): */ 94 CMD_STAT_BAD_PKT = 0x30, 95 /* More outstanding CQEs in CQ than new CQ size: */ 96 CMD_STAT_BAD_SIZE = 0x40, 97 /* Multi Function device support required: */ 98 CMD_STAT_MULTI_FUNC_REQ = 0x50, 99 }; 100 101 enum { 102 HCR_IN_PARAM_OFFSET = 0x00, 103 HCR_IN_MODIFIER_OFFSET = 0x08, 104 HCR_OUT_PARAM_OFFSET = 0x0c, 105 HCR_TOKEN_OFFSET = 0x14, 106 HCR_STATUS_OFFSET = 0x18, 107 108 HCR_OPMOD_SHIFT = 12, 109 HCR_T_BIT = 21, 110 HCR_E_BIT = 22, 111 HCR_GO_BIT = 23 112 }; 113 114 enum { 115 GO_BIT_TIMEOUT_MSECS = 10000 116 }; 117 118 enum mlx4_vlan_transition { 119 MLX4_VLAN_TRANSITION_VST_VST = 0, 120 MLX4_VLAN_TRANSITION_VST_VGT = 1, 121 MLX4_VLAN_TRANSITION_VGT_VST = 2, 122 MLX4_VLAN_TRANSITION_VGT_VGT = 3, 123 }; 124 125 126 struct mlx4_cmd_context { 127 struct completion done; 128 int result; 129 int next; 130 u64 out_param; 131 u16 token; 132 u8 fw_status; 133 }; 134 135 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 136 struct mlx4_vhcr_cmd *in_vhcr); 137 138 static int mlx4_status_to_errno(u8 status) 139 { 140 static const int trans_table[] = { 141 [CMD_STAT_INTERNAL_ERR] = -EIO, 142 [CMD_STAT_BAD_OP] = -EPERM, 143 [CMD_STAT_BAD_PARAM] = -EINVAL, 144 [CMD_STAT_BAD_SYS_STATE] = -ENXIO, 145 [CMD_STAT_BAD_RESOURCE] = -EBADF, 146 [CMD_STAT_RESOURCE_BUSY] = -EBUSY, 147 [CMD_STAT_EXCEED_LIM] = -ENOMEM, 148 [CMD_STAT_BAD_RES_STATE] = -EBADF, 149 [CMD_STAT_BAD_INDEX] = -EBADF, 150 [CMD_STAT_BAD_NVMEM] = -EFAULT, 151 [CMD_STAT_ICM_ERROR] = -ENFILE, 152 [CMD_STAT_BAD_QP_STATE] = -EINVAL, 153 [CMD_STAT_BAD_SEG_PARAM] = -EFAULT, 154 [CMD_STAT_REG_BOUND] = -EBUSY, 155 [CMD_STAT_LAM_NOT_PRE] = -EAGAIN, 156 [CMD_STAT_BAD_PKT] = -EINVAL, 157 [CMD_STAT_BAD_SIZE] = -ENOMEM, 158 [CMD_STAT_MULTI_FUNC_REQ] = -EACCES, 159 }; 160 161 if (status >= ARRAY_SIZE(trans_table) || 162 (status != CMD_STAT_OK && trans_table[status] == 0)) 163 return -EIO; 164 165 return trans_table[status]; 166 } 167 168 static u8 mlx4_errno_to_status(int errno) 169 { 170 switch (errno) { 171 case -EPERM: 172 return CMD_STAT_BAD_OP; 173 case -EINVAL: 174 return CMD_STAT_BAD_PARAM; 175 case -ENXIO: 176 return CMD_STAT_BAD_SYS_STATE; 177 case -EBUSY: 178 return CMD_STAT_RESOURCE_BUSY; 179 case -ENOMEM: 180 return CMD_STAT_EXCEED_LIM; 181 case -ENFILE: 182 return CMD_STAT_ICM_ERROR; 183 default: 184 return CMD_STAT_INTERNAL_ERR; 185 } 186 } 187 188 static int mlx4_internal_err_ret_value(struct mlx4_dev *dev, u16 op, 189 u8 op_modifier) 190 { 191 switch (op) { 192 case MLX4_CMD_UNMAP_ICM: 193 case MLX4_CMD_UNMAP_ICM_AUX: 194 case MLX4_CMD_UNMAP_FA: 195 case MLX4_CMD_2RST_QP: 196 case MLX4_CMD_HW2SW_EQ: 197 case MLX4_CMD_HW2SW_CQ: 198 case MLX4_CMD_HW2SW_SRQ: 199 case MLX4_CMD_HW2SW_MPT: 200 case MLX4_CMD_CLOSE_HCA: 201 case MLX4_QP_FLOW_STEERING_DETACH: 202 case MLX4_CMD_FREE_RES: 203 case MLX4_CMD_CLOSE_PORT: 204 return CMD_STAT_OK; 205 206 case MLX4_CMD_QP_ATTACH: 207 /* On Detach case return success */ 208 if (op_modifier == 0) 209 return CMD_STAT_OK; 210 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 211 212 default: 213 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 214 } 215 } 216 217 static int mlx4_closing_cmd_fatal_error(u16 op, u8 fw_status) 218 { 219 /* Any error during the closing commands below is considered fatal */ 220 if (op == MLX4_CMD_CLOSE_HCA || 221 op == MLX4_CMD_HW2SW_EQ || 222 op == MLX4_CMD_HW2SW_CQ || 223 op == MLX4_CMD_2RST_QP || 224 op == MLX4_CMD_HW2SW_SRQ || 225 op == MLX4_CMD_SYNC_TPT || 226 op == MLX4_CMD_UNMAP_ICM || 227 op == MLX4_CMD_UNMAP_ICM_AUX || 228 op == MLX4_CMD_UNMAP_FA) 229 return 1; 230 /* Error on MLX4_CMD_HW2SW_MPT is fatal except when fw status equals 231 * CMD_STAT_REG_BOUND. 232 * This status indicates that memory region has memory windows bound to it 233 * which may result from invalid user space usage and is not fatal. 234 */ 235 if (op == MLX4_CMD_HW2SW_MPT && fw_status != CMD_STAT_REG_BOUND) 236 return 1; 237 return 0; 238 } 239 240 static int mlx4_cmd_reset_flow(struct mlx4_dev *dev, u16 op, u8 op_modifier, 241 int err) 242 { 243 /* Only if reset flow is really active return code is based on 244 * command, otherwise current error code is returned. 245 */ 246 if (mlx4_internal_err_reset) { 247 mlx4_enter_error_state(dev->persist); 248 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 249 } 250 251 return err; 252 } 253 254 static int comm_pending(struct mlx4_dev *dev) 255 { 256 struct mlx4_priv *priv = mlx4_priv(dev); 257 u32 status = readl(&priv->mfunc.comm->slave_read); 258 259 return (swab32(status) >> 31) != priv->cmd.comm_toggle; 260 } 261 262 static int mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param) 263 { 264 struct mlx4_priv *priv = mlx4_priv(dev); 265 u32 val; 266 267 /* To avoid writing to unknown addresses after the device state was 268 * changed to internal error and the function was rest, 269 * check the INTERNAL_ERROR flag which is updated under 270 * device_state_mutex lock. 271 */ 272 mutex_lock(&dev->persist->device_state_mutex); 273 274 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 275 mutex_unlock(&dev->persist->device_state_mutex); 276 return -EIO; 277 } 278 279 priv->cmd.comm_toggle ^= 1; 280 val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31); 281 __raw_writel((__force u32) cpu_to_be32(val), 282 &priv->mfunc.comm->slave_write); 283 mmiowb(); 284 mutex_unlock(&dev->persist->device_state_mutex); 285 return 0; 286 } 287 288 static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param, 289 unsigned long timeout) 290 { 291 struct mlx4_priv *priv = mlx4_priv(dev); 292 unsigned long end; 293 int err = 0; 294 int ret_from_pending = 0; 295 296 /* First, verify that the master reports correct status */ 297 if (comm_pending(dev)) { 298 mlx4_warn(dev, "Communication channel is not idle - my toggle is %d (cmd:0x%x)\n", 299 priv->cmd.comm_toggle, cmd); 300 return -EAGAIN; 301 } 302 303 /* Write command */ 304 down(&priv->cmd.poll_sem); 305 if (mlx4_comm_cmd_post(dev, cmd, param)) { 306 /* Only in case the device state is INTERNAL_ERROR, 307 * mlx4_comm_cmd_post returns with an error 308 */ 309 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 310 goto out; 311 } 312 313 end = msecs_to_jiffies(timeout) + jiffies; 314 while (comm_pending(dev) && time_before(jiffies, end)) 315 cond_resched(); 316 ret_from_pending = comm_pending(dev); 317 if (ret_from_pending) { 318 /* check if the slave is trying to boot in the middle of 319 * FLR process. The only non-zero result in the RESET command 320 * is MLX4_DELAY_RESET_SLAVE*/ 321 if ((MLX4_COMM_CMD_RESET == cmd)) { 322 err = MLX4_DELAY_RESET_SLAVE; 323 goto out; 324 } else { 325 mlx4_warn(dev, "Communication channel command 0x%x timed out\n", 326 cmd); 327 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 328 } 329 } 330 331 if (err) 332 mlx4_enter_error_state(dev->persist); 333 out: 334 up(&priv->cmd.poll_sem); 335 return err; 336 } 337 338 static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 vhcr_cmd, 339 u16 param, u16 op, unsigned long timeout) 340 { 341 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 342 struct mlx4_cmd_context *context; 343 unsigned long end; 344 int err = 0; 345 346 down(&cmd->event_sem); 347 348 spin_lock(&cmd->context_lock); 349 BUG_ON(cmd->free_head < 0); 350 context = &cmd->context[cmd->free_head]; 351 context->token += cmd->token_mask + 1; 352 cmd->free_head = context->next; 353 spin_unlock(&cmd->context_lock); 354 355 reinit_completion(&context->done); 356 357 if (mlx4_comm_cmd_post(dev, vhcr_cmd, param)) { 358 /* Only in case the device state is INTERNAL_ERROR, 359 * mlx4_comm_cmd_post returns with an error 360 */ 361 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 362 goto out; 363 } 364 365 if (!wait_for_completion_timeout(&context->done, 366 msecs_to_jiffies(timeout))) { 367 mlx4_warn(dev, "communication channel command 0x%x (op=0x%x) timed out\n", 368 vhcr_cmd, op); 369 goto out_reset; 370 } 371 372 err = context->result; 373 if (err && context->fw_status != CMD_STAT_MULTI_FUNC_REQ) { 374 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 375 vhcr_cmd, context->fw_status); 376 if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) 377 goto out_reset; 378 } 379 380 /* wait for comm channel ready 381 * this is necessary for prevention the race 382 * when switching between event to polling mode 383 * Skipping this section in case the device is in FATAL_ERROR state, 384 * In this state, no commands are sent via the comm channel until 385 * the device has returned from reset. 386 */ 387 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { 388 end = msecs_to_jiffies(timeout) + jiffies; 389 while (comm_pending(dev) && time_before(jiffies, end)) 390 cond_resched(); 391 } 392 goto out; 393 394 out_reset: 395 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 396 mlx4_enter_error_state(dev->persist); 397 out: 398 spin_lock(&cmd->context_lock); 399 context->next = cmd->free_head; 400 cmd->free_head = context - cmd->context; 401 spin_unlock(&cmd->context_lock); 402 403 up(&cmd->event_sem); 404 return err; 405 } 406 407 int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param, 408 u16 op, unsigned long timeout) 409 { 410 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 411 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 412 413 if (mlx4_priv(dev)->cmd.use_events) 414 return mlx4_comm_cmd_wait(dev, cmd, param, op, timeout); 415 return mlx4_comm_cmd_poll(dev, cmd, param, timeout); 416 } 417 418 static int cmd_pending(struct mlx4_dev *dev) 419 { 420 u32 status; 421 422 if (pci_channel_offline(dev->persist->pdev)) 423 return -EIO; 424 425 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET); 426 427 return (status & swab32(1 << HCR_GO_BIT)) || 428 (mlx4_priv(dev)->cmd.toggle == 429 !!(status & swab32(1 << HCR_T_BIT))); 430 } 431 432 static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param, 433 u32 in_modifier, u8 op_modifier, u16 op, u16 token, 434 int event) 435 { 436 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 437 u32 __iomem *hcr = cmd->hcr; 438 int ret = -EIO; 439 unsigned long end; 440 441 mutex_lock(&dev->persist->device_state_mutex); 442 /* To avoid writing to unknown addresses after the device state was 443 * changed to internal error and the chip was reset, 444 * check the INTERNAL_ERROR flag which is updated under 445 * device_state_mutex lock. 446 */ 447 if (pci_channel_offline(dev->persist->pdev) || 448 (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { 449 /* 450 * Device is going through error recovery 451 * and cannot accept commands. 452 */ 453 goto out; 454 } 455 456 end = jiffies; 457 if (event) 458 end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS); 459 460 while (cmd_pending(dev)) { 461 if (pci_channel_offline(dev->persist->pdev)) { 462 /* 463 * Device is going through error recovery 464 * and cannot accept commands. 465 */ 466 goto out; 467 } 468 469 if (time_after_eq(jiffies, end)) { 470 mlx4_err(dev, "%s:cmd_pending failed\n", __func__); 471 goto out; 472 } 473 cond_resched(); 474 } 475 476 /* 477 * We use writel (instead of something like memcpy_toio) 478 * because writes of less than 32 bits to the HCR don't work 479 * (and some architectures such as ia64 implement memcpy_toio 480 * in terms of writeb). 481 */ 482 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0); 483 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1); 484 __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2); 485 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3); 486 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4); 487 __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5); 488 489 /* __raw_writel may not order writes. */ 490 wmb(); 491 492 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 493 (cmd->toggle << HCR_T_BIT) | 494 (event ? (1 << HCR_E_BIT) : 0) | 495 (op_modifier << HCR_OPMOD_SHIFT) | 496 op), hcr + 6); 497 498 /* 499 * Make sure that our HCR writes don't get mixed in with 500 * writes from another CPU starting a FW command. 501 */ 502 mmiowb(); 503 504 cmd->toggle = cmd->toggle ^ 1; 505 506 ret = 0; 507 508 out: 509 if (ret) 510 mlx4_warn(dev, "Could not post command 0x%x: ret=%d, in_param=0x%llx, in_mod=0x%x, op_mod=0x%x\n", 511 op, ret, (long long)in_param, in_modifier, op_modifier); 512 mutex_unlock(&dev->persist->device_state_mutex); 513 514 return ret; 515 } 516 517 static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 518 int out_is_imm, u32 in_modifier, u8 op_modifier, 519 u16 op, unsigned long timeout) 520 { 521 struct mlx4_priv *priv = mlx4_priv(dev); 522 struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr; 523 int ret; 524 525 mutex_lock(&priv->cmd.slave_cmd_mutex); 526 527 vhcr->in_param = cpu_to_be64(in_param); 528 vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0; 529 vhcr->in_modifier = cpu_to_be32(in_modifier); 530 vhcr->opcode = cpu_to_be16((((u16) op_modifier) << 12) | (op & 0xfff)); 531 vhcr->token = cpu_to_be16(CMD_POLL_TOKEN); 532 vhcr->status = 0; 533 vhcr->flags = !!(priv->cmd.use_events) << 6; 534 535 if (mlx4_is_master(dev)) { 536 ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr); 537 if (!ret) { 538 if (out_is_imm) { 539 if (out_param) 540 *out_param = 541 be64_to_cpu(vhcr->out_param); 542 else { 543 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 544 op); 545 vhcr->status = CMD_STAT_BAD_PARAM; 546 } 547 } 548 ret = mlx4_status_to_errno(vhcr->status); 549 } 550 if (ret && 551 dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 552 ret = mlx4_internal_err_ret_value(dev, op, op_modifier); 553 } else { 554 ret = mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_POST, 0, op, 555 MLX4_COMM_TIME + timeout); 556 if (!ret) { 557 if (out_is_imm) { 558 if (out_param) 559 *out_param = 560 be64_to_cpu(vhcr->out_param); 561 else { 562 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 563 op); 564 vhcr->status = CMD_STAT_BAD_PARAM; 565 } 566 } 567 ret = mlx4_status_to_errno(vhcr->status); 568 } else { 569 if (dev->persist->state & 570 MLX4_DEVICE_STATE_INTERNAL_ERROR) 571 ret = mlx4_internal_err_ret_value(dev, op, 572 op_modifier); 573 else 574 mlx4_err(dev, "failed execution of VHCR_POST command opcode 0x%x\n", op); 575 } 576 } 577 578 mutex_unlock(&priv->cmd.slave_cmd_mutex); 579 return ret; 580 } 581 582 static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 583 int out_is_imm, u32 in_modifier, u8 op_modifier, 584 u16 op, unsigned long timeout) 585 { 586 struct mlx4_priv *priv = mlx4_priv(dev); 587 void __iomem *hcr = priv->cmd.hcr; 588 int err = 0; 589 unsigned long end; 590 u32 stat; 591 592 down(&priv->cmd.poll_sem); 593 594 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 595 /* 596 * Device is going through error recovery 597 * and cannot accept commands. 598 */ 599 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 600 goto out; 601 } 602 603 if (out_is_imm && !out_param) { 604 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 605 op); 606 err = -EINVAL; 607 goto out; 608 } 609 610 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, 611 in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0); 612 if (err) 613 goto out_reset; 614 615 end = msecs_to_jiffies(timeout) + jiffies; 616 while (cmd_pending(dev) && time_before(jiffies, end)) { 617 if (pci_channel_offline(dev->persist->pdev)) { 618 /* 619 * Device is going through error recovery 620 * and cannot accept commands. 621 */ 622 err = -EIO; 623 goto out_reset; 624 } 625 626 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 627 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 628 goto out; 629 } 630 631 cond_resched(); 632 } 633 634 if (cmd_pending(dev)) { 635 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", 636 op); 637 err = -EIO; 638 goto out_reset; 639 } 640 641 if (out_is_imm) 642 *out_param = 643 (u64) be32_to_cpu((__force __be32) 644 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 | 645 (u64) be32_to_cpu((__force __be32) 646 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4)); 647 stat = be32_to_cpu((__force __be32) 648 __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24; 649 err = mlx4_status_to_errno(stat); 650 if (err) { 651 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 652 op, stat); 653 if (mlx4_closing_cmd_fatal_error(op, stat)) 654 goto out_reset; 655 goto out; 656 } 657 658 out_reset: 659 if (err) 660 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); 661 out: 662 up(&priv->cmd.poll_sem); 663 return err; 664 } 665 666 void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param) 667 { 668 struct mlx4_priv *priv = mlx4_priv(dev); 669 struct mlx4_cmd_context *context = 670 &priv->cmd.context[token & priv->cmd.token_mask]; 671 672 /* previously timed out command completing at long last */ 673 if (token != context->token) 674 return; 675 676 context->fw_status = status; 677 context->result = mlx4_status_to_errno(status); 678 context->out_param = out_param; 679 680 complete(&context->done); 681 } 682 683 static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 684 int out_is_imm, u32 in_modifier, u8 op_modifier, 685 u16 op, unsigned long timeout) 686 { 687 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 688 struct mlx4_cmd_context *context; 689 long ret_wait; 690 int err = 0; 691 692 down(&cmd->event_sem); 693 694 spin_lock(&cmd->context_lock); 695 BUG_ON(cmd->free_head < 0); 696 context = &cmd->context[cmd->free_head]; 697 context->token += cmd->token_mask + 1; 698 cmd->free_head = context->next; 699 spin_unlock(&cmd->context_lock); 700 701 if (out_is_imm && !out_param) { 702 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 703 op); 704 err = -EINVAL; 705 goto out; 706 } 707 708 reinit_completion(&context->done); 709 710 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, 711 in_modifier, op_modifier, op, context->token, 1); 712 if (err) 713 goto out_reset; 714 715 if (op == MLX4_CMD_SENSE_PORT) { 716 ret_wait = 717 wait_for_completion_interruptible_timeout(&context->done, 718 msecs_to_jiffies(timeout)); 719 if (ret_wait < 0) { 720 context->fw_status = 0; 721 context->out_param = 0; 722 context->result = 0; 723 } 724 } else { 725 ret_wait = (long)wait_for_completion_timeout(&context->done, 726 msecs_to_jiffies(timeout)); 727 } 728 if (!ret_wait) { 729 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", 730 op); 731 if (op == MLX4_CMD_NOP) { 732 err = -EBUSY; 733 goto out; 734 } else { 735 err = -EIO; 736 goto out_reset; 737 } 738 } 739 740 err = context->result; 741 if (err) { 742 /* Since we do not want to have this error message always 743 * displayed at driver start when there are ConnectX2 HCAs 744 * on the host, we deprecate the error message for this 745 * specific command/input_mod/opcode_mod/fw-status to be debug. 746 */ 747 if (op == MLX4_CMD_SET_PORT && 748 (in_modifier == 1 || in_modifier == 2) && 749 op_modifier == MLX4_SET_PORT_IB_OPCODE && 750 context->fw_status == CMD_STAT_BAD_SIZE) 751 mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n", 752 op, context->fw_status); 753 else 754 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 755 op, context->fw_status); 756 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 757 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 758 else if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) 759 goto out_reset; 760 761 goto out; 762 } 763 764 if (out_is_imm) 765 *out_param = context->out_param; 766 767 out_reset: 768 if (err) 769 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); 770 out: 771 spin_lock(&cmd->context_lock); 772 context->next = cmd->free_head; 773 cmd->free_head = context - cmd->context; 774 spin_unlock(&cmd->context_lock); 775 776 up(&cmd->event_sem); 777 return err; 778 } 779 780 int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 781 int out_is_imm, u32 in_modifier, u8 op_modifier, 782 u16 op, unsigned long timeout, int native) 783 { 784 if (pci_channel_offline(dev->persist->pdev)) 785 return mlx4_cmd_reset_flow(dev, op, op_modifier, -EIO); 786 787 if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) { 788 int ret; 789 790 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 791 return mlx4_internal_err_ret_value(dev, op, 792 op_modifier); 793 down_read(&mlx4_priv(dev)->cmd.switch_sem); 794 if (mlx4_priv(dev)->cmd.use_events) 795 ret = mlx4_cmd_wait(dev, in_param, out_param, 796 out_is_imm, in_modifier, 797 op_modifier, op, timeout); 798 else 799 ret = mlx4_cmd_poll(dev, in_param, out_param, 800 out_is_imm, in_modifier, 801 op_modifier, op, timeout); 802 803 up_read(&mlx4_priv(dev)->cmd.switch_sem); 804 return ret; 805 } 806 return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm, 807 in_modifier, op_modifier, op, timeout); 808 } 809 EXPORT_SYMBOL_GPL(__mlx4_cmd); 810 811 812 int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev) 813 { 814 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL, 815 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); 816 } 817 818 static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr, 819 int slave, u64 slave_addr, 820 int size, int is_read) 821 { 822 u64 in_param; 823 u64 out_param; 824 825 if ((slave_addr & 0xfff) | (master_addr & 0xfff) | 826 (slave & ~0x7f) | (size & 0xff)) { 827 mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx " 828 "master_addr:0x%llx slave_id:%d size:%d\n", 829 (unsigned long long)slave_addr, 830 (unsigned long long)master_addr, slave, size); 831 return -EINVAL; 832 } 833 834 if (is_read) { 835 in_param = (u64) slave | slave_addr; 836 out_param = (u64) dev->caps.function | master_addr; 837 } else { 838 in_param = (u64) dev->caps.function | master_addr; 839 out_param = (u64) slave | slave_addr; 840 } 841 842 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0, 843 MLX4_CMD_ACCESS_MEM, 844 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 845 } 846 847 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey, 848 struct mlx4_cmd_mailbox *inbox, 849 struct mlx4_cmd_mailbox *outbox) 850 { 851 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf); 852 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf); 853 int err; 854 int i; 855 856 if (index & 0x1f) 857 return -EINVAL; 858 859 in_mad->attr_mod = cpu_to_be32(index / 32); 860 861 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, 862 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, 863 MLX4_CMD_NATIVE); 864 if (err) 865 return err; 866 867 for (i = 0; i < 32; ++i) 868 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]); 869 870 return err; 871 } 872 873 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table, 874 struct mlx4_cmd_mailbox *inbox, 875 struct mlx4_cmd_mailbox *outbox) 876 { 877 int i; 878 int err; 879 880 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) { 881 err = query_pkey_block(dev, port, i, table + i, inbox, outbox); 882 if (err) 883 return err; 884 } 885 886 return 0; 887 } 888 #define PORT_CAPABILITY_LOCATION_IN_SMP 20 889 #define PORT_STATE_OFFSET 32 890 891 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf) 892 { 893 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP) 894 return IB_PORT_ACTIVE; 895 else 896 return IB_PORT_DOWN; 897 } 898 899 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave, 900 struct mlx4_vhcr *vhcr, 901 struct mlx4_cmd_mailbox *inbox, 902 struct mlx4_cmd_mailbox *outbox, 903 struct mlx4_cmd_info *cmd) 904 { 905 struct ib_smp *smp = inbox->buf; 906 u32 index; 907 u8 port, slave_port; 908 u8 opcode_modifier; 909 u16 *table; 910 int err; 911 int vidx, pidx; 912 int network_view; 913 struct mlx4_priv *priv = mlx4_priv(dev); 914 struct ib_smp *outsmp = outbox->buf; 915 __be16 *outtab = (__be16 *)(outsmp->data); 916 __be32 slave_cap_mask; 917 __be64 slave_node_guid; 918 919 slave_port = vhcr->in_modifier; 920 port = mlx4_slave_convert_port(dev, slave, slave_port); 921 922 /* network-view bit is for driver use only, and should not be passed to FW */ 923 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */ 924 network_view = !!(vhcr->op_modifier & 0x8); 925 926 if (smp->base_version == 1 && 927 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 928 smp->class_version == 1) { 929 /* host view is paravirtualized */ 930 if (!network_view && smp->method == IB_MGMT_METHOD_GET) { 931 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) { 932 index = be32_to_cpu(smp->attr_mod); 933 if (port < 1 || port > dev->caps.num_ports) 934 return -EINVAL; 935 table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1, 936 sizeof(*table) * 32, GFP_KERNEL); 937 938 if (!table) 939 return -ENOMEM; 940 /* need to get the full pkey table because the paravirtualized 941 * pkeys may be scattered among several pkey blocks. 942 */ 943 err = get_full_pkey_table(dev, port, table, inbox, outbox); 944 if (!err) { 945 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) { 946 pidx = priv->virt2phys_pkey[slave][port - 1][vidx]; 947 outtab[vidx % 32] = cpu_to_be16(table[pidx]); 948 } 949 } 950 kfree(table); 951 return err; 952 } 953 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) { 954 /*get the slave specific caps:*/ 955 /*do the command */ 956 smp->attr_mod = cpu_to_be32(port); 957 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 958 port, opcode_modifier, 959 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 960 /* modify the response for slaves */ 961 if (!err && slave != mlx4_master_func_num(dev)) { 962 u8 *state = outsmp->data + PORT_STATE_OFFSET; 963 964 *state = (*state & 0xf0) | vf_port_state(dev, port, slave); 965 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; 966 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4); 967 } 968 return err; 969 } 970 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) { 971 __be64 guid = mlx4_get_admin_guid(dev, slave, 972 port); 973 974 /* set the PF admin guid to the FW/HW burned 975 * GUID, if it wasn't yet set 976 */ 977 if (slave == 0 && guid == 0) { 978 smp->attr_mod = 0; 979 err = mlx4_cmd_box(dev, 980 inbox->dma, 981 outbox->dma, 982 vhcr->in_modifier, 983 opcode_modifier, 984 vhcr->op, 985 MLX4_CMD_TIME_CLASS_C, 986 MLX4_CMD_NATIVE); 987 if (err) 988 return err; 989 mlx4_set_admin_guid(dev, 990 *(__be64 *)outsmp-> 991 data, slave, port); 992 } else { 993 memcpy(outsmp->data, &guid, 8); 994 } 995 996 /* clean all other gids */ 997 memset(outsmp->data + 8, 0, 56); 998 return 0; 999 } 1000 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) { 1001 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1002 port, opcode_modifier, 1003 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1004 if (!err) { 1005 slave_node_guid = mlx4_get_slave_node_guid(dev, slave); 1006 memcpy(outsmp->data + 12, &slave_node_guid, 8); 1007 } 1008 return err; 1009 } 1010 } 1011 } 1012 1013 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs. 1014 * These are the MADs used by ib verbs (such as ib_query_gids). 1015 */ 1016 if (slave != mlx4_master_func_num(dev) && 1017 !mlx4_vf_smi_enabled(dev, slave, port)) { 1018 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 1019 smp->method == IB_MGMT_METHOD_GET) || network_view) { 1020 mlx4_err(dev, "Unprivileged slave %d is trying to execute a Subnet MGMT MAD, class 0x%x, method 0x%x, view=%s for attr 0x%x. Rejecting\n", 1021 slave, smp->mgmt_class, smp->method, 1022 network_view ? "Network" : "Host", 1023 be16_to_cpu(smp->attr_id)); 1024 return -EPERM; 1025 } 1026 } 1027 1028 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1029 vhcr->in_modifier, opcode_modifier, 1030 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1031 } 1032 1033 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave, 1034 struct mlx4_vhcr *vhcr, 1035 struct mlx4_cmd_mailbox *inbox, 1036 struct mlx4_cmd_mailbox *outbox, 1037 struct mlx4_cmd_info *cmd) 1038 { 1039 return -EPERM; 1040 } 1041 1042 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave, 1043 struct mlx4_vhcr *vhcr, 1044 struct mlx4_cmd_mailbox *inbox, 1045 struct mlx4_cmd_mailbox *outbox, 1046 struct mlx4_cmd_info *cmd) 1047 { 1048 u64 in_param; 1049 u64 out_param; 1050 int err; 1051 1052 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; 1053 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; 1054 if (cmd->encode_slave_id) { 1055 in_param &= 0xffffffffffffff00ll; 1056 in_param |= slave; 1057 } 1058 1059 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, 1060 vhcr->in_modifier, vhcr->op_modifier, vhcr->op, 1061 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 1062 1063 if (cmd->out_is_imm) 1064 vhcr->out_param = out_param; 1065 1066 return err; 1067 } 1068 1069 static struct mlx4_cmd_info cmd_info[] = { 1070 { 1071 .opcode = MLX4_CMD_QUERY_FW, 1072 .has_inbox = false, 1073 .has_outbox = true, 1074 .out_is_imm = false, 1075 .encode_slave_id = false, 1076 .verify = NULL, 1077 .wrapper = mlx4_QUERY_FW_wrapper 1078 }, 1079 { 1080 .opcode = MLX4_CMD_QUERY_HCA, 1081 .has_inbox = false, 1082 .has_outbox = true, 1083 .out_is_imm = false, 1084 .encode_slave_id = false, 1085 .verify = NULL, 1086 .wrapper = NULL 1087 }, 1088 { 1089 .opcode = MLX4_CMD_QUERY_DEV_CAP, 1090 .has_inbox = false, 1091 .has_outbox = true, 1092 .out_is_imm = false, 1093 .encode_slave_id = false, 1094 .verify = NULL, 1095 .wrapper = mlx4_QUERY_DEV_CAP_wrapper 1096 }, 1097 { 1098 .opcode = MLX4_CMD_QUERY_FUNC_CAP, 1099 .has_inbox = false, 1100 .has_outbox = true, 1101 .out_is_imm = false, 1102 .encode_slave_id = false, 1103 .verify = NULL, 1104 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper 1105 }, 1106 { 1107 .opcode = MLX4_CMD_QUERY_ADAPTER, 1108 .has_inbox = false, 1109 .has_outbox = true, 1110 .out_is_imm = false, 1111 .encode_slave_id = false, 1112 .verify = NULL, 1113 .wrapper = NULL 1114 }, 1115 { 1116 .opcode = MLX4_CMD_INIT_PORT, 1117 .has_inbox = false, 1118 .has_outbox = false, 1119 .out_is_imm = false, 1120 .encode_slave_id = false, 1121 .verify = NULL, 1122 .wrapper = mlx4_INIT_PORT_wrapper 1123 }, 1124 { 1125 .opcode = MLX4_CMD_CLOSE_PORT, 1126 .has_inbox = false, 1127 .has_outbox = false, 1128 .out_is_imm = false, 1129 .encode_slave_id = false, 1130 .verify = NULL, 1131 .wrapper = mlx4_CLOSE_PORT_wrapper 1132 }, 1133 { 1134 .opcode = MLX4_CMD_QUERY_PORT, 1135 .has_inbox = false, 1136 .has_outbox = true, 1137 .out_is_imm = false, 1138 .encode_slave_id = false, 1139 .verify = NULL, 1140 .wrapper = mlx4_QUERY_PORT_wrapper 1141 }, 1142 { 1143 .opcode = MLX4_CMD_SET_PORT, 1144 .has_inbox = true, 1145 .has_outbox = false, 1146 .out_is_imm = false, 1147 .encode_slave_id = false, 1148 .verify = NULL, 1149 .wrapper = mlx4_SET_PORT_wrapper 1150 }, 1151 { 1152 .opcode = MLX4_CMD_MAP_EQ, 1153 .has_inbox = false, 1154 .has_outbox = false, 1155 .out_is_imm = false, 1156 .encode_slave_id = false, 1157 .verify = NULL, 1158 .wrapper = mlx4_MAP_EQ_wrapper 1159 }, 1160 { 1161 .opcode = MLX4_CMD_SW2HW_EQ, 1162 .has_inbox = true, 1163 .has_outbox = false, 1164 .out_is_imm = false, 1165 .encode_slave_id = true, 1166 .verify = NULL, 1167 .wrapper = mlx4_SW2HW_EQ_wrapper 1168 }, 1169 { 1170 .opcode = MLX4_CMD_HW_HEALTH_CHECK, 1171 .has_inbox = false, 1172 .has_outbox = false, 1173 .out_is_imm = false, 1174 .encode_slave_id = false, 1175 .verify = NULL, 1176 .wrapper = NULL 1177 }, 1178 { 1179 .opcode = MLX4_CMD_NOP, 1180 .has_inbox = false, 1181 .has_outbox = false, 1182 .out_is_imm = false, 1183 .encode_slave_id = false, 1184 .verify = NULL, 1185 .wrapper = NULL 1186 }, 1187 { 1188 .opcode = MLX4_CMD_CONFIG_DEV, 1189 .has_inbox = false, 1190 .has_outbox = true, 1191 .out_is_imm = false, 1192 .encode_slave_id = false, 1193 .verify = NULL, 1194 .wrapper = mlx4_CONFIG_DEV_wrapper 1195 }, 1196 { 1197 .opcode = MLX4_CMD_ALLOC_RES, 1198 .has_inbox = false, 1199 .has_outbox = false, 1200 .out_is_imm = true, 1201 .encode_slave_id = false, 1202 .verify = NULL, 1203 .wrapper = mlx4_ALLOC_RES_wrapper 1204 }, 1205 { 1206 .opcode = MLX4_CMD_FREE_RES, 1207 .has_inbox = false, 1208 .has_outbox = false, 1209 .out_is_imm = false, 1210 .encode_slave_id = false, 1211 .verify = NULL, 1212 .wrapper = mlx4_FREE_RES_wrapper 1213 }, 1214 { 1215 .opcode = MLX4_CMD_SW2HW_MPT, 1216 .has_inbox = true, 1217 .has_outbox = false, 1218 .out_is_imm = false, 1219 .encode_slave_id = true, 1220 .verify = NULL, 1221 .wrapper = mlx4_SW2HW_MPT_wrapper 1222 }, 1223 { 1224 .opcode = MLX4_CMD_QUERY_MPT, 1225 .has_inbox = false, 1226 .has_outbox = true, 1227 .out_is_imm = false, 1228 .encode_slave_id = false, 1229 .verify = NULL, 1230 .wrapper = mlx4_QUERY_MPT_wrapper 1231 }, 1232 { 1233 .opcode = MLX4_CMD_HW2SW_MPT, 1234 .has_inbox = false, 1235 .has_outbox = false, 1236 .out_is_imm = false, 1237 .encode_slave_id = false, 1238 .verify = NULL, 1239 .wrapper = mlx4_HW2SW_MPT_wrapper 1240 }, 1241 { 1242 .opcode = MLX4_CMD_READ_MTT, 1243 .has_inbox = false, 1244 .has_outbox = true, 1245 .out_is_imm = false, 1246 .encode_slave_id = false, 1247 .verify = NULL, 1248 .wrapper = NULL 1249 }, 1250 { 1251 .opcode = MLX4_CMD_WRITE_MTT, 1252 .has_inbox = true, 1253 .has_outbox = false, 1254 .out_is_imm = false, 1255 .encode_slave_id = false, 1256 .verify = NULL, 1257 .wrapper = mlx4_WRITE_MTT_wrapper 1258 }, 1259 { 1260 .opcode = MLX4_CMD_SYNC_TPT, 1261 .has_inbox = true, 1262 .has_outbox = false, 1263 .out_is_imm = false, 1264 .encode_slave_id = false, 1265 .verify = NULL, 1266 .wrapper = NULL 1267 }, 1268 { 1269 .opcode = MLX4_CMD_HW2SW_EQ, 1270 .has_inbox = false, 1271 .has_outbox = false, 1272 .out_is_imm = false, 1273 .encode_slave_id = true, 1274 .verify = NULL, 1275 .wrapper = mlx4_HW2SW_EQ_wrapper 1276 }, 1277 { 1278 .opcode = MLX4_CMD_QUERY_EQ, 1279 .has_inbox = false, 1280 .has_outbox = true, 1281 .out_is_imm = false, 1282 .encode_slave_id = true, 1283 .verify = NULL, 1284 .wrapper = mlx4_QUERY_EQ_wrapper 1285 }, 1286 { 1287 .opcode = MLX4_CMD_SW2HW_CQ, 1288 .has_inbox = true, 1289 .has_outbox = false, 1290 .out_is_imm = false, 1291 .encode_slave_id = true, 1292 .verify = NULL, 1293 .wrapper = mlx4_SW2HW_CQ_wrapper 1294 }, 1295 { 1296 .opcode = MLX4_CMD_HW2SW_CQ, 1297 .has_inbox = false, 1298 .has_outbox = false, 1299 .out_is_imm = false, 1300 .encode_slave_id = false, 1301 .verify = NULL, 1302 .wrapper = mlx4_HW2SW_CQ_wrapper 1303 }, 1304 { 1305 .opcode = MLX4_CMD_QUERY_CQ, 1306 .has_inbox = false, 1307 .has_outbox = true, 1308 .out_is_imm = false, 1309 .encode_slave_id = false, 1310 .verify = NULL, 1311 .wrapper = mlx4_QUERY_CQ_wrapper 1312 }, 1313 { 1314 .opcode = MLX4_CMD_MODIFY_CQ, 1315 .has_inbox = true, 1316 .has_outbox = false, 1317 .out_is_imm = true, 1318 .encode_slave_id = false, 1319 .verify = NULL, 1320 .wrapper = mlx4_MODIFY_CQ_wrapper 1321 }, 1322 { 1323 .opcode = MLX4_CMD_SW2HW_SRQ, 1324 .has_inbox = true, 1325 .has_outbox = false, 1326 .out_is_imm = false, 1327 .encode_slave_id = true, 1328 .verify = NULL, 1329 .wrapper = mlx4_SW2HW_SRQ_wrapper 1330 }, 1331 { 1332 .opcode = MLX4_CMD_HW2SW_SRQ, 1333 .has_inbox = false, 1334 .has_outbox = false, 1335 .out_is_imm = false, 1336 .encode_slave_id = false, 1337 .verify = NULL, 1338 .wrapper = mlx4_HW2SW_SRQ_wrapper 1339 }, 1340 { 1341 .opcode = MLX4_CMD_QUERY_SRQ, 1342 .has_inbox = false, 1343 .has_outbox = true, 1344 .out_is_imm = false, 1345 .encode_slave_id = false, 1346 .verify = NULL, 1347 .wrapper = mlx4_QUERY_SRQ_wrapper 1348 }, 1349 { 1350 .opcode = MLX4_CMD_ARM_SRQ, 1351 .has_inbox = false, 1352 .has_outbox = false, 1353 .out_is_imm = false, 1354 .encode_slave_id = false, 1355 .verify = NULL, 1356 .wrapper = mlx4_ARM_SRQ_wrapper 1357 }, 1358 { 1359 .opcode = MLX4_CMD_RST2INIT_QP, 1360 .has_inbox = true, 1361 .has_outbox = false, 1362 .out_is_imm = false, 1363 .encode_slave_id = true, 1364 .verify = NULL, 1365 .wrapper = mlx4_RST2INIT_QP_wrapper 1366 }, 1367 { 1368 .opcode = MLX4_CMD_INIT2INIT_QP, 1369 .has_inbox = true, 1370 .has_outbox = false, 1371 .out_is_imm = false, 1372 .encode_slave_id = false, 1373 .verify = NULL, 1374 .wrapper = mlx4_INIT2INIT_QP_wrapper 1375 }, 1376 { 1377 .opcode = MLX4_CMD_INIT2RTR_QP, 1378 .has_inbox = true, 1379 .has_outbox = false, 1380 .out_is_imm = false, 1381 .encode_slave_id = false, 1382 .verify = NULL, 1383 .wrapper = mlx4_INIT2RTR_QP_wrapper 1384 }, 1385 { 1386 .opcode = MLX4_CMD_RTR2RTS_QP, 1387 .has_inbox = true, 1388 .has_outbox = false, 1389 .out_is_imm = false, 1390 .encode_slave_id = false, 1391 .verify = NULL, 1392 .wrapper = mlx4_RTR2RTS_QP_wrapper 1393 }, 1394 { 1395 .opcode = MLX4_CMD_RTS2RTS_QP, 1396 .has_inbox = true, 1397 .has_outbox = false, 1398 .out_is_imm = false, 1399 .encode_slave_id = false, 1400 .verify = NULL, 1401 .wrapper = mlx4_RTS2RTS_QP_wrapper 1402 }, 1403 { 1404 .opcode = MLX4_CMD_SQERR2RTS_QP, 1405 .has_inbox = true, 1406 .has_outbox = false, 1407 .out_is_imm = false, 1408 .encode_slave_id = false, 1409 .verify = NULL, 1410 .wrapper = mlx4_SQERR2RTS_QP_wrapper 1411 }, 1412 { 1413 .opcode = MLX4_CMD_2ERR_QP, 1414 .has_inbox = false, 1415 .has_outbox = false, 1416 .out_is_imm = false, 1417 .encode_slave_id = false, 1418 .verify = NULL, 1419 .wrapper = mlx4_GEN_QP_wrapper 1420 }, 1421 { 1422 .opcode = MLX4_CMD_RTS2SQD_QP, 1423 .has_inbox = false, 1424 .has_outbox = false, 1425 .out_is_imm = false, 1426 .encode_slave_id = false, 1427 .verify = NULL, 1428 .wrapper = mlx4_GEN_QP_wrapper 1429 }, 1430 { 1431 .opcode = MLX4_CMD_SQD2SQD_QP, 1432 .has_inbox = true, 1433 .has_outbox = false, 1434 .out_is_imm = false, 1435 .encode_slave_id = false, 1436 .verify = NULL, 1437 .wrapper = mlx4_SQD2SQD_QP_wrapper 1438 }, 1439 { 1440 .opcode = MLX4_CMD_SQD2RTS_QP, 1441 .has_inbox = true, 1442 .has_outbox = false, 1443 .out_is_imm = false, 1444 .encode_slave_id = false, 1445 .verify = NULL, 1446 .wrapper = mlx4_SQD2RTS_QP_wrapper 1447 }, 1448 { 1449 .opcode = MLX4_CMD_2RST_QP, 1450 .has_inbox = false, 1451 .has_outbox = false, 1452 .out_is_imm = false, 1453 .encode_slave_id = false, 1454 .verify = NULL, 1455 .wrapper = mlx4_2RST_QP_wrapper 1456 }, 1457 { 1458 .opcode = MLX4_CMD_QUERY_QP, 1459 .has_inbox = false, 1460 .has_outbox = true, 1461 .out_is_imm = false, 1462 .encode_slave_id = false, 1463 .verify = NULL, 1464 .wrapper = mlx4_GEN_QP_wrapper 1465 }, 1466 { 1467 .opcode = MLX4_CMD_SUSPEND_QP, 1468 .has_inbox = false, 1469 .has_outbox = false, 1470 .out_is_imm = false, 1471 .encode_slave_id = false, 1472 .verify = NULL, 1473 .wrapper = mlx4_GEN_QP_wrapper 1474 }, 1475 { 1476 .opcode = MLX4_CMD_UNSUSPEND_QP, 1477 .has_inbox = false, 1478 .has_outbox = false, 1479 .out_is_imm = false, 1480 .encode_slave_id = false, 1481 .verify = NULL, 1482 .wrapper = mlx4_GEN_QP_wrapper 1483 }, 1484 { 1485 .opcode = MLX4_CMD_UPDATE_QP, 1486 .has_inbox = true, 1487 .has_outbox = false, 1488 .out_is_imm = false, 1489 .encode_slave_id = false, 1490 .verify = NULL, 1491 .wrapper = mlx4_UPDATE_QP_wrapper 1492 }, 1493 { 1494 .opcode = MLX4_CMD_GET_OP_REQ, 1495 .has_inbox = false, 1496 .has_outbox = false, 1497 .out_is_imm = false, 1498 .encode_slave_id = false, 1499 .verify = NULL, 1500 .wrapper = mlx4_CMD_EPERM_wrapper, 1501 }, 1502 { 1503 .opcode = MLX4_CMD_ALLOCATE_VPP, 1504 .has_inbox = false, 1505 .has_outbox = true, 1506 .out_is_imm = false, 1507 .encode_slave_id = false, 1508 .verify = NULL, 1509 .wrapper = mlx4_CMD_EPERM_wrapper, 1510 }, 1511 { 1512 .opcode = MLX4_CMD_SET_VPORT_QOS, 1513 .has_inbox = false, 1514 .has_outbox = true, 1515 .out_is_imm = false, 1516 .encode_slave_id = false, 1517 .verify = NULL, 1518 .wrapper = mlx4_CMD_EPERM_wrapper, 1519 }, 1520 { 1521 .opcode = MLX4_CMD_CONF_SPECIAL_QP, 1522 .has_inbox = false, 1523 .has_outbox = false, 1524 .out_is_imm = false, 1525 .encode_slave_id = false, 1526 .verify = NULL, /* XXX verify: only demux can do this */ 1527 .wrapper = NULL 1528 }, 1529 { 1530 .opcode = MLX4_CMD_MAD_IFC, 1531 .has_inbox = true, 1532 .has_outbox = true, 1533 .out_is_imm = false, 1534 .encode_slave_id = false, 1535 .verify = NULL, 1536 .wrapper = mlx4_MAD_IFC_wrapper 1537 }, 1538 { 1539 .opcode = MLX4_CMD_MAD_DEMUX, 1540 .has_inbox = false, 1541 .has_outbox = false, 1542 .out_is_imm = false, 1543 .encode_slave_id = false, 1544 .verify = NULL, 1545 .wrapper = mlx4_CMD_EPERM_wrapper 1546 }, 1547 { 1548 .opcode = MLX4_CMD_QUERY_IF_STAT, 1549 .has_inbox = false, 1550 .has_outbox = true, 1551 .out_is_imm = false, 1552 .encode_slave_id = false, 1553 .verify = NULL, 1554 .wrapper = mlx4_QUERY_IF_STAT_wrapper 1555 }, 1556 { 1557 .opcode = MLX4_CMD_ACCESS_REG, 1558 .has_inbox = true, 1559 .has_outbox = true, 1560 .out_is_imm = false, 1561 .encode_slave_id = false, 1562 .verify = NULL, 1563 .wrapper = mlx4_ACCESS_REG_wrapper, 1564 }, 1565 { 1566 .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE, 1567 .has_inbox = false, 1568 .has_outbox = false, 1569 .out_is_imm = false, 1570 .encode_slave_id = false, 1571 .verify = NULL, 1572 .wrapper = mlx4_CMD_EPERM_wrapper, 1573 }, 1574 /* Native multicast commands are not available for guests */ 1575 { 1576 .opcode = MLX4_CMD_QP_ATTACH, 1577 .has_inbox = true, 1578 .has_outbox = false, 1579 .out_is_imm = false, 1580 .encode_slave_id = false, 1581 .verify = NULL, 1582 .wrapper = mlx4_QP_ATTACH_wrapper 1583 }, 1584 { 1585 .opcode = MLX4_CMD_PROMISC, 1586 .has_inbox = false, 1587 .has_outbox = false, 1588 .out_is_imm = false, 1589 .encode_slave_id = false, 1590 .verify = NULL, 1591 .wrapper = mlx4_PROMISC_wrapper 1592 }, 1593 /* Ethernet specific commands */ 1594 { 1595 .opcode = MLX4_CMD_SET_VLAN_FLTR, 1596 .has_inbox = true, 1597 .has_outbox = false, 1598 .out_is_imm = false, 1599 .encode_slave_id = false, 1600 .verify = NULL, 1601 .wrapper = mlx4_SET_VLAN_FLTR_wrapper 1602 }, 1603 { 1604 .opcode = MLX4_CMD_SET_MCAST_FLTR, 1605 .has_inbox = false, 1606 .has_outbox = false, 1607 .out_is_imm = false, 1608 .encode_slave_id = false, 1609 .verify = NULL, 1610 .wrapper = mlx4_SET_MCAST_FLTR_wrapper 1611 }, 1612 { 1613 .opcode = MLX4_CMD_DUMP_ETH_STATS, 1614 .has_inbox = false, 1615 .has_outbox = true, 1616 .out_is_imm = false, 1617 .encode_slave_id = false, 1618 .verify = NULL, 1619 .wrapper = mlx4_DUMP_ETH_STATS_wrapper 1620 }, 1621 { 1622 .opcode = MLX4_CMD_INFORM_FLR_DONE, 1623 .has_inbox = false, 1624 .has_outbox = false, 1625 .out_is_imm = false, 1626 .encode_slave_id = false, 1627 .verify = NULL, 1628 .wrapper = NULL 1629 }, 1630 /* flow steering commands */ 1631 { 1632 .opcode = MLX4_QP_FLOW_STEERING_ATTACH, 1633 .has_inbox = true, 1634 .has_outbox = false, 1635 .out_is_imm = true, 1636 .encode_slave_id = false, 1637 .verify = NULL, 1638 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper 1639 }, 1640 { 1641 .opcode = MLX4_QP_FLOW_STEERING_DETACH, 1642 .has_inbox = false, 1643 .has_outbox = false, 1644 .out_is_imm = false, 1645 .encode_slave_id = false, 1646 .verify = NULL, 1647 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper 1648 }, 1649 { 1650 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE, 1651 .has_inbox = false, 1652 .has_outbox = false, 1653 .out_is_imm = false, 1654 .encode_slave_id = false, 1655 .verify = NULL, 1656 .wrapper = mlx4_CMD_EPERM_wrapper 1657 }, 1658 { 1659 .opcode = MLX4_CMD_VIRT_PORT_MAP, 1660 .has_inbox = false, 1661 .has_outbox = false, 1662 .out_is_imm = false, 1663 .encode_slave_id = false, 1664 .verify = NULL, 1665 .wrapper = mlx4_CMD_EPERM_wrapper 1666 }, 1667 }; 1668 1669 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 1670 struct mlx4_vhcr_cmd *in_vhcr) 1671 { 1672 struct mlx4_priv *priv = mlx4_priv(dev); 1673 struct mlx4_cmd_info *cmd = NULL; 1674 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr; 1675 struct mlx4_vhcr *vhcr; 1676 struct mlx4_cmd_mailbox *inbox = NULL; 1677 struct mlx4_cmd_mailbox *outbox = NULL; 1678 u64 in_param; 1679 u64 out_param; 1680 int ret = 0; 1681 int i; 1682 int err = 0; 1683 1684 /* Create sw representation of Virtual HCR */ 1685 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL); 1686 if (!vhcr) 1687 return -ENOMEM; 1688 1689 /* DMA in the vHCR */ 1690 if (!in_vhcr) { 1691 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1692 priv->mfunc.master.slave_state[slave].vhcr_dma, 1693 ALIGN(sizeof(struct mlx4_vhcr_cmd), 1694 MLX4_ACCESS_MEM_ALIGN), 1); 1695 if (ret) { 1696 if (!(dev->persist->state & 1697 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1698 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n", 1699 __func__, ret); 1700 kfree(vhcr); 1701 return ret; 1702 } 1703 } 1704 1705 /* Fill SW VHCR fields */ 1706 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param); 1707 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param); 1708 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier); 1709 vhcr->token = be16_to_cpu(vhcr_cmd->token); 1710 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff; 1711 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12); 1712 vhcr->e_bit = vhcr_cmd->flags & (1 << 6); 1713 1714 /* Lookup command */ 1715 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) { 1716 if (vhcr->op == cmd_info[i].opcode) { 1717 cmd = &cmd_info[i]; 1718 break; 1719 } 1720 } 1721 if (!cmd) { 1722 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n", 1723 vhcr->op, slave); 1724 vhcr_cmd->status = CMD_STAT_BAD_PARAM; 1725 goto out_status; 1726 } 1727 1728 /* Read inbox */ 1729 if (cmd->has_inbox) { 1730 vhcr->in_param &= INBOX_MASK; 1731 inbox = mlx4_alloc_cmd_mailbox(dev); 1732 if (IS_ERR(inbox)) { 1733 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1734 inbox = NULL; 1735 goto out_status; 1736 } 1737 1738 ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave, 1739 vhcr->in_param, 1740 MLX4_MAILBOX_SIZE, 1); 1741 if (ret) { 1742 if (!(dev->persist->state & 1743 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1744 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n", 1745 __func__, cmd->opcode); 1746 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR; 1747 goto out_status; 1748 } 1749 } 1750 1751 /* Apply permission and bound checks if applicable */ 1752 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) { 1753 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n", 1754 vhcr->op, slave, vhcr->in_modifier); 1755 vhcr_cmd->status = CMD_STAT_BAD_OP; 1756 goto out_status; 1757 } 1758 1759 /* Allocate outbox */ 1760 if (cmd->has_outbox) { 1761 outbox = mlx4_alloc_cmd_mailbox(dev); 1762 if (IS_ERR(outbox)) { 1763 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1764 outbox = NULL; 1765 goto out_status; 1766 } 1767 } 1768 1769 /* Execute the command! */ 1770 if (cmd->wrapper) { 1771 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox, 1772 cmd); 1773 if (cmd->out_is_imm) 1774 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1775 } else { 1776 in_param = cmd->has_inbox ? (u64) inbox->dma : 1777 vhcr->in_param; 1778 out_param = cmd->has_outbox ? (u64) outbox->dma : 1779 vhcr->out_param; 1780 err = __mlx4_cmd(dev, in_param, &out_param, 1781 cmd->out_is_imm, vhcr->in_modifier, 1782 vhcr->op_modifier, vhcr->op, 1783 MLX4_CMD_TIME_CLASS_A, 1784 MLX4_CMD_NATIVE); 1785 1786 if (cmd->out_is_imm) { 1787 vhcr->out_param = out_param; 1788 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1789 } 1790 } 1791 1792 if (err) { 1793 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1794 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n", 1795 vhcr->op, slave, vhcr->errno, err); 1796 vhcr_cmd->status = mlx4_errno_to_status(err); 1797 goto out_status; 1798 } 1799 1800 1801 /* Write outbox if command completed successfully */ 1802 if (cmd->has_outbox && !vhcr_cmd->status) { 1803 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave, 1804 vhcr->out_param, 1805 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED); 1806 if (ret) { 1807 /* If we failed to write back the outbox after the 1808 *command was successfully executed, we must fail this 1809 * slave, as it is now in undefined state */ 1810 if (!(dev->persist->state & 1811 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1812 mlx4_err(dev, "%s:Failed writing outbox\n", __func__); 1813 goto out; 1814 } 1815 } 1816 1817 out_status: 1818 /* DMA back vhcr result */ 1819 if (!in_vhcr) { 1820 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1821 priv->mfunc.master.slave_state[slave].vhcr_dma, 1822 ALIGN(sizeof(struct mlx4_vhcr), 1823 MLX4_ACCESS_MEM_ALIGN), 1824 MLX4_CMD_WRAPPED); 1825 if (ret) 1826 mlx4_err(dev, "%s:Failed writing vhcr result\n", 1827 __func__); 1828 else if (vhcr->e_bit && 1829 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe)) 1830 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n", 1831 slave); 1832 } 1833 1834 out: 1835 kfree(vhcr); 1836 mlx4_free_cmd_mailbox(dev, inbox); 1837 mlx4_free_cmd_mailbox(dev, outbox); 1838 return ret; 1839 } 1840 1841 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv, 1842 int slave, int port) 1843 { 1844 struct mlx4_vport_oper_state *vp_oper; 1845 struct mlx4_vport_state *vp_admin; 1846 struct mlx4_vf_immed_vlan_work *work; 1847 struct mlx4_dev *dev = &priv->dev; 1848 int err; 1849 int admin_vlan_ix = NO_INDX; 1850 1851 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 1852 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 1853 1854 if (vp_oper->state.default_vlan == vp_admin->default_vlan && 1855 vp_oper->state.default_qos == vp_admin->default_qos && 1856 vp_oper->state.vlan_proto == vp_admin->vlan_proto && 1857 vp_oper->state.qos_vport == vp_admin->qos_vport) 1858 return 0; 1859 1860 if (!(priv->mfunc.master.slave_state[slave].active && 1861 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) { 1862 /* even if the UPDATE_QP command isn't supported, we still want 1863 * to set this VF link according to the admin directive 1864 */ 1865 return -1; 1866 } 1867 1868 mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n", 1869 slave, port); 1870 mlx4_dbg(dev, "vlan %d QoS %d link down\n", 1871 vp_admin->default_vlan, vp_admin->default_qos); 1872 1873 work = kzalloc(sizeof(*work), GFP_KERNEL); 1874 if (!work) 1875 return -ENOMEM; 1876 1877 if (vp_oper->state.default_vlan != vp_admin->default_vlan) { 1878 if (MLX4_VGT != vp_admin->default_vlan) { 1879 err = __mlx4_register_vlan(&priv->dev, port, 1880 vp_admin->default_vlan, 1881 &admin_vlan_ix); 1882 if (err) { 1883 kfree(work); 1884 mlx4_warn(&priv->dev, 1885 "No vlan resources slave %d, port %d\n", 1886 slave, port); 1887 return err; 1888 } 1889 } else { 1890 admin_vlan_ix = NO_INDX; 1891 } 1892 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN; 1893 mlx4_dbg(&priv->dev, 1894 "alloc vlan %d idx %d slave %d port %d\n", 1895 (int)(vp_admin->default_vlan), 1896 admin_vlan_ix, slave, port); 1897 } 1898 1899 /* save original vlan ix and vlan id */ 1900 work->orig_vlan_id = vp_oper->state.default_vlan; 1901 work->orig_vlan_ix = vp_oper->vlan_idx; 1902 1903 /* handle new qos */ 1904 if (vp_oper->state.default_qos != vp_admin->default_qos) 1905 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS; 1906 1907 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN) 1908 vp_oper->vlan_idx = admin_vlan_ix; 1909 1910 vp_oper->state.default_vlan = vp_admin->default_vlan; 1911 vp_oper->state.default_qos = vp_admin->default_qos; 1912 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 1913 vp_oper->state.qos_vport = vp_admin->qos_vport; 1914 1915 if (1 /* vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE */) 1916 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE; 1917 1918 /* iterate over QPs owned by this slave, using UPDATE_QP */ 1919 work->port = port; 1920 work->slave = slave; 1921 work->qos = vp_oper->state.default_qos; 1922 work->qos_vport = vp_oper->state.qos_vport; 1923 work->vlan_id = vp_oper->state.default_vlan; 1924 work->vlan_ix = vp_oper->vlan_idx; 1925 work->vlan_proto = vp_oper->state.vlan_proto; 1926 work->priv = priv; 1927 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler); 1928 queue_work(priv->mfunc.master.comm_wq, &work->work); 1929 1930 return 0; 1931 } 1932 1933 static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port) 1934 { 1935 struct mlx4_qos_manager *port_qos_ctl; 1936 struct mlx4_priv *priv = mlx4_priv(dev); 1937 1938 port_qos_ctl = &priv->mfunc.master.qos_ctl[port]; 1939 bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP); 1940 1941 /* Enable only default prio at PF init routine */ 1942 set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm); 1943 } 1944 1945 static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port) 1946 { 1947 int i; 1948 int err; 1949 int num_vfs; 1950 u16 availible_vpp; 1951 u8 vpp_param[MLX4_NUM_UP]; 1952 struct mlx4_qos_manager *port_qos; 1953 struct mlx4_priv *priv = mlx4_priv(dev); 1954 1955 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1956 if (err) { 1957 mlx4_info(dev, "Failed query availible VPPs\n"); 1958 return; 1959 } 1960 1961 port_qos = &priv->mfunc.master.qos_ctl[port]; 1962 num_vfs = (availible_vpp / 1963 bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP)); 1964 1965 for (i = 0; i < MLX4_NUM_UP; i++) { 1966 if (test_bit(i, port_qos->priority_bm)) 1967 vpp_param[i] = num_vfs; 1968 } 1969 1970 err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param); 1971 if (err) { 1972 mlx4_info(dev, "Failed allocating VPPs\n"); 1973 return; 1974 } 1975 1976 /* Query actual allocated VPP, just to make sure */ 1977 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1978 if (err) { 1979 mlx4_info(dev, "Failed query availible VPPs\n"); 1980 return; 1981 } 1982 1983 port_qos->num_of_qos_vfs = num_vfs; 1984 mlx4_dbg(dev, "Port %d Availible VPPs %d\n", port, availible_vpp); 1985 1986 for (i = 0; i < MLX4_NUM_UP; i++) 1987 mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i, 1988 vpp_param[i]); 1989 } 1990 1991 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave) 1992 { 1993 int port, err; 1994 struct mlx4_vport_state *vp_admin; 1995 struct mlx4_vport_oper_state *vp_oper; 1996 struct mlx4_slave_state *slave_state = 1997 &priv->mfunc.master.slave_state[slave]; 1998 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 1999 &priv->dev, slave); 2000 int min_port = find_first_bit(actv_ports.ports, 2001 priv->dev.caps.num_ports) + 1; 2002 int max_port = min_port - 1 + 2003 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2004 2005 for (port = min_port; port <= max_port; port++) { 2006 if (!test_bit(port - 1, actv_ports.ports)) 2007 continue; 2008 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2009 priv->mfunc.master.vf_admin[slave].enable_smi[port]; 2010 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2011 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 2012 if (vp_admin->vlan_proto != htons(ETH_P_8021AD) || 2013 slave_state->vst_qinq_supported) { 2014 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 2015 vp_oper->state.default_vlan = vp_admin->default_vlan; 2016 vp_oper->state.default_qos = vp_admin->default_qos; 2017 } 2018 vp_oper->state.mac = vp_admin->mac; 2019 vp_oper->state.spoofchk = vp_admin->spoofchk; 2020 vp_oper->state.tx_rate = vp_admin->tx_rate; 2021 vp_oper->state.qos_vport = vp_admin->qos_vport; 2022 vp_oper->state.guid = vp_admin->guid; 2023 2024 if (MLX4_VGT != vp_admin->default_vlan) { 2025 err = __mlx4_register_vlan(&priv->dev, port, 2026 vp_admin->default_vlan, &(vp_oper->vlan_idx)); 2027 if (err) { 2028 vp_oper->vlan_idx = NO_INDX; 2029 vp_oper->state.default_vlan = MLX4_VGT; 2030 vp_oper->state.vlan_proto = htons(ETH_P_8021Q); 2031 mlx4_warn(&priv->dev, 2032 "No vlan resources slave %d, port %d\n", 2033 slave, port); 2034 return err; 2035 } 2036 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", 2037 (int)(vp_oper->state.default_vlan), 2038 vp_oper->vlan_idx, slave, port); 2039 } 2040 if (vp_admin->spoofchk) { 2041 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev, 2042 port, 2043 vp_admin->mac); 2044 if (0 > vp_oper->mac_idx) { 2045 err = vp_oper->mac_idx; 2046 vp_oper->mac_idx = NO_INDX; 2047 mlx4_warn(&priv->dev, 2048 "No mac resources slave %d, port %d\n", 2049 slave, port); 2050 return err; 2051 } 2052 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n", 2053 (unsigned long long) vp_oper->state.mac, vp_oper->mac_idx, slave, port); 2054 } 2055 } 2056 return 0; 2057 } 2058 2059 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave) 2060 { 2061 int port; 2062 struct mlx4_vport_oper_state *vp_oper; 2063 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2064 &priv->dev, slave); 2065 int min_port = find_first_bit(actv_ports.ports, 2066 priv->dev.caps.num_ports) + 1; 2067 int max_port = min_port - 1 + 2068 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2069 2070 2071 for (port = min_port; port <= max_port; port++) { 2072 if (!test_bit(port - 1, actv_ports.ports)) 2073 continue; 2074 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2075 MLX4_VF_SMI_DISABLED; 2076 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2077 if (NO_INDX != vp_oper->vlan_idx) { 2078 __mlx4_unregister_vlan(&priv->dev, 2079 port, vp_oper->state.default_vlan); 2080 vp_oper->vlan_idx = NO_INDX; 2081 } 2082 if (NO_INDX != vp_oper->mac_idx) { 2083 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); 2084 vp_oper->mac_idx = NO_INDX; 2085 } 2086 } 2087 return; 2088 } 2089 2090 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd, 2091 u16 param, u8 toggle) 2092 { 2093 struct mlx4_priv *priv = mlx4_priv(dev); 2094 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2095 u32 reply; 2096 u8 is_going_down = 0; 2097 int i; 2098 unsigned long flags; 2099 2100 slave_state[slave].comm_toggle ^= 1; 2101 reply = (u32) slave_state[slave].comm_toggle << 31; 2102 if (toggle != slave_state[slave].comm_toggle) { 2103 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n", 2104 toggle, slave); 2105 goto reset_slave; 2106 } 2107 if (cmd == MLX4_COMM_CMD_RESET) { 2108 mlx4_warn(dev, "Received reset from slave:%d\n", slave); 2109 slave_state[slave].active = false; 2110 slave_state[slave].old_vlan_api = false; 2111 slave_state[slave].vst_qinq_supported = false; 2112 mlx4_master_deactivate_admin_state(priv, slave); 2113 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) { 2114 slave_state[slave].event_eq[i].eqn = -1; 2115 slave_state[slave].event_eq[i].token = 0; 2116 } 2117 /*check if we are in the middle of FLR process, 2118 if so return "retry" status to the slave*/ 2119 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) 2120 goto inform_slave_state; 2121 2122 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave); 2123 2124 /* write the version in the event field */ 2125 reply |= mlx4_comm_get_version(); 2126 2127 goto reset_slave; 2128 } 2129 /*command from slave in the middle of FLR*/ 2130 if (cmd != MLX4_COMM_CMD_RESET && 2131 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) { 2132 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n", 2133 slave, cmd); 2134 return; 2135 } 2136 2137 switch (cmd) { 2138 case MLX4_COMM_CMD_VHCR0: 2139 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET) 2140 goto reset_slave; 2141 slave_state[slave].vhcr_dma = ((u64) param) << 48; 2142 priv->mfunc.master.slave_state[slave].cookie = 0; 2143 break; 2144 case MLX4_COMM_CMD_VHCR1: 2145 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0) 2146 goto reset_slave; 2147 slave_state[slave].vhcr_dma |= ((u64) param) << 32; 2148 break; 2149 case MLX4_COMM_CMD_VHCR2: 2150 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1) 2151 goto reset_slave; 2152 slave_state[slave].vhcr_dma |= ((u64) param) << 16; 2153 break; 2154 case MLX4_COMM_CMD_VHCR_EN: 2155 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2) 2156 goto reset_slave; 2157 slave_state[slave].vhcr_dma |= param; 2158 if (mlx4_master_activate_admin_state(priv, slave)) 2159 goto reset_slave; 2160 slave_state[slave].active = true; 2161 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave); 2162 break; 2163 case MLX4_COMM_CMD_VHCR_POST: 2164 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) && 2165 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) { 2166 mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n", 2167 slave, cmd, slave_state[slave].last_cmd); 2168 goto reset_slave; 2169 } 2170 2171 mutex_lock(&priv->cmd.slave_cmd_mutex); 2172 if (mlx4_master_process_vhcr(dev, slave, NULL)) { 2173 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n", 2174 slave); 2175 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2176 goto reset_slave; 2177 } 2178 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2179 break; 2180 default: 2181 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave); 2182 goto reset_slave; 2183 } 2184 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2185 if (!slave_state[slave].is_slave_going_down) 2186 slave_state[slave].last_cmd = cmd; 2187 else 2188 is_going_down = 1; 2189 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2190 if (is_going_down) { 2191 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n", 2192 cmd, slave); 2193 return; 2194 } 2195 __raw_writel((__force u32) cpu_to_be32(reply), 2196 &priv->mfunc.comm[slave].slave_read); 2197 mmiowb(); 2198 2199 return; 2200 2201 reset_slave: 2202 /* cleanup any slave resources */ 2203 if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP) 2204 mlx4_delete_all_resources_for_slave(dev, slave); 2205 2206 if (cmd != MLX4_COMM_CMD_RESET) { 2207 mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n", 2208 slave, cmd); 2209 /* Turn on internal error letting slave reset itself immeditaly, 2210 * otherwise it might take till timeout on command is passed 2211 */ 2212 reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR); 2213 } 2214 2215 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2216 if (!slave_state[slave].is_slave_going_down) 2217 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET; 2218 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2219 /*with slave in the middle of flr, no need to clean resources again.*/ 2220 inform_slave_state: 2221 memset(&slave_state[slave].event_eq, 0, 2222 sizeof(struct mlx4_slave_event_eq_info)); 2223 __raw_writel((__force u32) cpu_to_be32(reply), 2224 &priv->mfunc.comm[slave].slave_read); 2225 wmb(); 2226 } 2227 2228 /* master command processing */ 2229 void mlx4_master_comm_channel(struct work_struct *work) 2230 { 2231 struct mlx4_mfunc_master_ctx *master = 2232 container_of(work, 2233 struct mlx4_mfunc_master_ctx, 2234 comm_work); 2235 struct mlx4_mfunc *mfunc = 2236 container_of(master, struct mlx4_mfunc, master); 2237 struct mlx4_priv *priv = 2238 container_of(mfunc, struct mlx4_priv, mfunc); 2239 struct mlx4_dev *dev = &priv->dev; 2240 __be32 *bit_vec; 2241 u32 comm_cmd; 2242 u32 vec; 2243 int i, j, slave; 2244 int toggle; 2245 int served = 0; 2246 int reported = 0; 2247 u32 slt; 2248 2249 bit_vec = master->comm_arm_bit_vector; 2250 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) { 2251 vec = be32_to_cpu(bit_vec[i]); 2252 for (j = 0; j < 32; j++) { 2253 if (!(vec & (1 << j))) 2254 continue; 2255 ++reported; 2256 slave = (i * 32) + j; 2257 comm_cmd = swab32(readl( 2258 &mfunc->comm[slave].slave_write)); 2259 slt = swab32(readl(&mfunc->comm[slave].slave_read)) 2260 >> 31; 2261 toggle = comm_cmd >> 31; 2262 if (toggle != slt) { 2263 if (master->slave_state[slave].comm_toggle 2264 != slt) { 2265 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n", 2266 slave, slt, 2267 master->slave_state[slave].comm_toggle); 2268 master->slave_state[slave].comm_toggle = 2269 slt; 2270 } 2271 mlx4_master_do_cmd(dev, slave, 2272 comm_cmd >> 16 & 0xff, 2273 comm_cmd & 0xffff, toggle); 2274 ++served; 2275 } 2276 } 2277 } 2278 2279 if (reported && reported != served) 2280 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n", 2281 reported, served); 2282 2283 if (mlx4_ARM_COMM_CHANNEL(dev)) 2284 mlx4_warn(dev, "Failed to arm comm channel events\n"); 2285 } 2286 2287 static int sync_toggles(struct mlx4_dev *dev) 2288 { 2289 struct mlx4_priv *priv = mlx4_priv(dev); 2290 u32 wr_toggle; 2291 u32 rd_toggle; 2292 unsigned long end; 2293 2294 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)); 2295 if (wr_toggle == 0xffffffff) 2296 end = jiffies + msecs_to_jiffies(30000); 2297 else 2298 end = jiffies + msecs_to_jiffies(5000); 2299 2300 while (time_before(jiffies, end)) { 2301 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)); 2302 if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) { 2303 /* PCI might be offline */ 2304 msleep(100); 2305 wr_toggle = swab32(readl(&priv->mfunc.comm-> 2306 slave_write)); 2307 continue; 2308 } 2309 2310 if (rd_toggle >> 31 == wr_toggle >> 31) { 2311 priv->cmd.comm_toggle = rd_toggle >> 31; 2312 return 0; 2313 } 2314 2315 cond_resched(); 2316 } 2317 2318 /* 2319 * we could reach here if for example the previous VM using this 2320 * function misbehaved and left the channel with unsynced state. We 2321 * should fix this here and give this VM a chance to use a properly 2322 * synced channel 2323 */ 2324 mlx4_warn(dev, "recovering from previously mis-behaved VM\n"); 2325 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read); 2326 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write); 2327 priv->cmd.comm_toggle = 0; 2328 2329 return 0; 2330 } 2331 2332 int mlx4_multi_func_init(struct mlx4_dev *dev) 2333 { 2334 struct mlx4_priv *priv = mlx4_priv(dev); 2335 struct mlx4_slave_state *s_state; 2336 int i, j, err, port; 2337 2338 if (mlx4_is_master(dev)) 2339 priv->mfunc.comm = 2340 ioremap(pci_resource_start(dev->persist->pdev, 2341 priv->fw.comm_bar) + 2342 priv->fw.comm_base, MLX4_COMM_PAGESIZE); 2343 else 2344 priv->mfunc.comm = 2345 ioremap(pci_resource_start(dev->persist->pdev, 2) + 2346 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE); 2347 if (!priv->mfunc.comm) { 2348 mlx4_err(dev, "Couldn't map communication vector\n"); 2349 goto err_vhcr; 2350 } 2351 2352 if (mlx4_is_master(dev)) { 2353 struct mlx4_vf_oper_state *vf_oper; 2354 struct mlx4_vf_admin_state *vf_admin; 2355 2356 priv->mfunc.master.slave_state = 2357 kzalloc(dev->num_slaves * 2358 sizeof(struct mlx4_slave_state), GFP_KERNEL); 2359 if (!priv->mfunc.master.slave_state) 2360 goto err_comm; 2361 2362 priv->mfunc.master.vf_admin = 2363 kzalloc(dev->num_slaves * 2364 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL); 2365 if (!priv->mfunc.master.vf_admin) 2366 goto err_comm_admin; 2367 2368 priv->mfunc.master.vf_oper = 2369 kzalloc(dev->num_slaves * 2370 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL); 2371 if (!priv->mfunc.master.vf_oper) 2372 goto err_comm_oper; 2373 2374 for (i = 0; i < dev->num_slaves; ++i) { 2375 vf_admin = &priv->mfunc.master.vf_admin[i]; 2376 vf_oper = &priv->mfunc.master.vf_oper[i]; 2377 s_state = &priv->mfunc.master.slave_state[i]; 2378 s_state->last_cmd = MLX4_COMM_CMD_RESET; 2379 s_state->vst_qinq_supported = false; 2380 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]); 2381 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j) 2382 s_state->event_eq[j].eqn = -1; 2383 __raw_writel((__force u32) 0, 2384 &priv->mfunc.comm[i].slave_write); 2385 __raw_writel((__force u32) 0, 2386 &priv->mfunc.comm[i].slave_read); 2387 mmiowb(); 2388 for (port = 1; port <= MLX4_MAX_PORTS; port++) { 2389 struct mlx4_vport_state *admin_vport; 2390 struct mlx4_vport_state *oper_vport; 2391 2392 s_state->vlan_filter[port] = 2393 kzalloc(sizeof(struct mlx4_vlan_fltr), 2394 GFP_KERNEL); 2395 if (!s_state->vlan_filter[port]) { 2396 if (--port) 2397 kfree(s_state->vlan_filter[port]); 2398 goto err_slaves; 2399 } 2400 2401 admin_vport = &vf_admin->vport[port]; 2402 oper_vport = &vf_oper->vport[port].state; 2403 INIT_LIST_HEAD(&s_state->mcast_filters[port]); 2404 admin_vport->default_vlan = MLX4_VGT; 2405 oper_vport->default_vlan = MLX4_VGT; 2406 admin_vport->qos_vport = 2407 MLX4_VPP_DEFAULT_VPORT; 2408 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; 2409 admin_vport->vlan_proto = htons(ETH_P_8021Q); 2410 oper_vport->vlan_proto = htons(ETH_P_8021Q); 2411 vf_oper->vport[port].vlan_idx = NO_INDX; 2412 vf_oper->vport[port].mac_idx = NO_INDX; 2413 mlx4_set_random_admin_guid(dev, i, port); 2414 } 2415 spin_lock_init(&s_state->lock); 2416 } 2417 2418 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) { 2419 for (port = 1; port <= dev->caps.num_ports; port++) { 2420 if (mlx4_is_eth(dev, port)) { 2421 mlx4_set_default_port_qos(dev, port); 2422 mlx4_allocate_port_vpps(dev, port); 2423 } 2424 } 2425 } 2426 2427 memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe)); 2428 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD; 2429 INIT_WORK(&priv->mfunc.master.comm_work, 2430 mlx4_master_comm_channel); 2431 INIT_WORK(&priv->mfunc.master.slave_event_work, 2432 mlx4_gen_slave_eqe); 2433 INIT_WORK(&priv->mfunc.master.slave_flr_event_work, 2434 mlx4_master_handle_slave_flr); 2435 spin_lock_init(&priv->mfunc.master.slave_state_lock); 2436 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock); 2437 priv->mfunc.master.comm_wq = 2438 create_singlethread_workqueue("mlx4_comm"); 2439 if (!priv->mfunc.master.comm_wq) 2440 goto err_slaves; 2441 2442 if (mlx4_init_resource_tracker(dev)) 2443 goto err_thread; 2444 2445 } else { 2446 err = sync_toggles(dev); 2447 if (err) { 2448 mlx4_err(dev, "Couldn't sync toggles\n"); 2449 goto err_comm; 2450 } 2451 } 2452 return 0; 2453 2454 err_thread: 2455 flush_workqueue(priv->mfunc.master.comm_wq); 2456 destroy_workqueue(priv->mfunc.master.comm_wq); 2457 err_slaves: 2458 while (i--) { 2459 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2460 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2461 } 2462 kfree(priv->mfunc.master.vf_oper); 2463 err_comm_oper: 2464 kfree(priv->mfunc.master.vf_admin); 2465 err_comm_admin: 2466 kfree(priv->mfunc.master.slave_state); 2467 err_comm: 2468 iounmap(priv->mfunc.comm); 2469 priv->mfunc.comm = NULL; 2470 err_vhcr: 2471 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2472 priv->mfunc.vhcr, 2473 priv->mfunc.vhcr_dma); 2474 priv->mfunc.vhcr = NULL; 2475 return -ENOMEM; 2476 } 2477 2478 int mlx4_cmd_init(struct mlx4_dev *dev) 2479 { 2480 struct mlx4_priv *priv = mlx4_priv(dev); 2481 int flags = 0; 2482 2483 if (!priv->cmd.initialized) { 2484 init_rwsem(&priv->cmd.switch_sem); 2485 mutex_init(&priv->cmd.slave_cmd_mutex); 2486 sema_init(&priv->cmd.poll_sem, 1); 2487 priv->cmd.use_events = 0; 2488 priv->cmd.toggle = 1; 2489 priv->cmd.initialized = 1; 2490 flags |= MLX4_CMD_CLEANUP_STRUCT; 2491 } 2492 2493 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) { 2494 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev, 2495 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE); 2496 if (!priv->cmd.hcr) { 2497 mlx4_err(dev, "Couldn't map command register\n"); 2498 goto err; 2499 } 2500 flags |= MLX4_CMD_CLEANUP_HCR; 2501 } 2502 2503 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) { 2504 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev, 2505 PAGE_SIZE, 2506 &priv->mfunc.vhcr_dma, 2507 GFP_KERNEL); 2508 if (!priv->mfunc.vhcr) 2509 goto err; 2510 2511 flags |= MLX4_CMD_CLEANUP_VHCR; 2512 } 2513 2514 if (!priv->cmd.pool) { 2515 priv->cmd.pool = pci_pool_create("mlx4_cmd", 2516 dev->persist->pdev, 2517 MLX4_MAILBOX_SIZE, 2518 MLX4_MAILBOX_SIZE, 0); 2519 if (!priv->cmd.pool) 2520 goto err; 2521 2522 flags |= MLX4_CMD_CLEANUP_POOL; 2523 } 2524 2525 return 0; 2526 2527 err: 2528 mlx4_cmd_cleanup(dev, flags); 2529 return -ENOMEM; 2530 } 2531 2532 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev) 2533 { 2534 struct mlx4_priv *priv = mlx4_priv(dev); 2535 int slave; 2536 u32 slave_read; 2537 2538 /* If the comm channel has not yet been initialized, 2539 * skip reporting the internal error event to all 2540 * the communication channels. 2541 */ 2542 if (!priv->mfunc.comm) 2543 return; 2544 2545 /* Report an internal error event to all 2546 * communication channels. 2547 */ 2548 for (slave = 0; slave < dev->num_slaves; slave++) { 2549 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read)); 2550 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR; 2551 __raw_writel((__force u32)cpu_to_be32(slave_read), 2552 &priv->mfunc.comm[slave].slave_read); 2553 /* Make sure that our comm channel write doesn't 2554 * get mixed in with writes from another CPU. 2555 */ 2556 mmiowb(); 2557 } 2558 } 2559 2560 void mlx4_multi_func_cleanup(struct mlx4_dev *dev) 2561 { 2562 struct mlx4_priv *priv = mlx4_priv(dev); 2563 int i, port; 2564 2565 if (mlx4_is_master(dev)) { 2566 flush_workqueue(priv->mfunc.master.comm_wq); 2567 destroy_workqueue(priv->mfunc.master.comm_wq); 2568 for (i = 0; i < dev->num_slaves; i++) { 2569 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2570 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2571 } 2572 kfree(priv->mfunc.master.slave_state); 2573 kfree(priv->mfunc.master.vf_admin); 2574 kfree(priv->mfunc.master.vf_oper); 2575 dev->num_slaves = 0; 2576 } 2577 2578 iounmap(priv->mfunc.comm); 2579 priv->mfunc.comm = NULL; 2580 } 2581 2582 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask) 2583 { 2584 struct mlx4_priv *priv = mlx4_priv(dev); 2585 2586 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) { 2587 pci_pool_destroy(priv->cmd.pool); 2588 priv->cmd.pool = NULL; 2589 } 2590 2591 if (!mlx4_is_slave(dev) && priv->cmd.hcr && 2592 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) { 2593 iounmap(priv->cmd.hcr); 2594 priv->cmd.hcr = NULL; 2595 } 2596 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr && 2597 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) { 2598 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2599 priv->mfunc.vhcr, priv->mfunc.vhcr_dma); 2600 priv->mfunc.vhcr = NULL; 2601 } 2602 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT)) 2603 priv->cmd.initialized = 0; 2604 } 2605 2606 /* 2607 * Switch to using events to issue FW commands (can only be called 2608 * after event queue for command events has been initialized). 2609 */ 2610 int mlx4_cmd_use_events(struct mlx4_dev *dev) 2611 { 2612 struct mlx4_priv *priv = mlx4_priv(dev); 2613 int i; 2614 int err = 0; 2615 2616 priv->cmd.context = kmalloc(priv->cmd.max_cmds * 2617 sizeof (struct mlx4_cmd_context), 2618 GFP_KERNEL); 2619 if (!priv->cmd.context) 2620 return -ENOMEM; 2621 2622 down_write(&priv->cmd.switch_sem); 2623 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2624 priv->cmd.context[i].token = i; 2625 priv->cmd.context[i].next = i + 1; 2626 /* To support fatal error flow, initialize all 2627 * cmd contexts to allow simulating completions 2628 * with complete() at any time. 2629 */ 2630 init_completion(&priv->cmd.context[i].done); 2631 } 2632 2633 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1; 2634 priv->cmd.free_head = 0; 2635 2636 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds); 2637 2638 for (priv->cmd.token_mask = 1; 2639 priv->cmd.token_mask < priv->cmd.max_cmds; 2640 priv->cmd.token_mask <<= 1) 2641 ; /* nothing */ 2642 --priv->cmd.token_mask; 2643 2644 down(&priv->cmd.poll_sem); 2645 priv->cmd.use_events = 1; 2646 up_write(&priv->cmd.switch_sem); 2647 2648 return err; 2649 } 2650 2651 /* 2652 * Switch back to polling (used when shutting down the device) 2653 */ 2654 void mlx4_cmd_use_polling(struct mlx4_dev *dev) 2655 { 2656 struct mlx4_priv *priv = mlx4_priv(dev); 2657 int i; 2658 2659 down_write(&priv->cmd.switch_sem); 2660 priv->cmd.use_events = 0; 2661 2662 for (i = 0; i < priv->cmd.max_cmds; ++i) 2663 down(&priv->cmd.event_sem); 2664 2665 kfree(priv->cmd.context); 2666 2667 up(&priv->cmd.poll_sem); 2668 up_write(&priv->cmd.switch_sem); 2669 } 2670 2671 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) 2672 { 2673 struct mlx4_cmd_mailbox *mailbox; 2674 2675 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL); 2676 if (!mailbox) 2677 return ERR_PTR(-ENOMEM); 2678 2679 mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL, 2680 &mailbox->dma); 2681 if (!mailbox->buf) { 2682 kfree(mailbox); 2683 return ERR_PTR(-ENOMEM); 2684 } 2685 2686 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE); 2687 2688 return mailbox; 2689 } 2690 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox); 2691 2692 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, 2693 struct mlx4_cmd_mailbox *mailbox) 2694 { 2695 if (!mailbox) 2696 return; 2697 2698 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma); 2699 kfree(mailbox); 2700 } 2701 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox); 2702 2703 u32 mlx4_comm_get_version(void) 2704 { 2705 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER; 2706 } 2707 2708 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf) 2709 { 2710 if ((vf < 0) || (vf >= dev->persist->num_vfs)) { 2711 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", 2712 vf, dev->persist->num_vfs); 2713 return -EINVAL; 2714 } 2715 2716 return vf+1; 2717 } 2718 2719 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave) 2720 { 2721 if (slave < 1 || slave > dev->persist->num_vfs) { 2722 mlx4_err(dev, 2723 "Bad slave number:%d (number of activated slaves: %lu)\n", 2724 slave, dev->num_slaves); 2725 return -EINVAL; 2726 } 2727 return slave - 1; 2728 } 2729 2730 void mlx4_cmd_wake_completions(struct mlx4_dev *dev) 2731 { 2732 struct mlx4_priv *priv = mlx4_priv(dev); 2733 struct mlx4_cmd_context *context; 2734 int i; 2735 2736 spin_lock(&priv->cmd.context_lock); 2737 if (priv->cmd.context) { 2738 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2739 context = &priv->cmd.context[i]; 2740 context->fw_status = CMD_STAT_INTERNAL_ERR; 2741 context->result = 2742 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 2743 complete(&context->done); 2744 } 2745 } 2746 spin_unlock(&priv->cmd.context_lock); 2747 } 2748 2749 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave) 2750 { 2751 struct mlx4_active_ports actv_ports; 2752 int vf; 2753 2754 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS); 2755 2756 if (slave == 0) { 2757 bitmap_fill(actv_ports.ports, dev->caps.num_ports); 2758 return actv_ports; 2759 } 2760 2761 vf = mlx4_get_vf_indx(dev, slave); 2762 if (vf < 0) 2763 return actv_ports; 2764 2765 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1, 2766 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports, 2767 dev->caps.num_ports)); 2768 2769 return actv_ports; 2770 } 2771 EXPORT_SYMBOL_GPL(mlx4_get_active_ports); 2772 2773 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port) 2774 { 2775 unsigned n; 2776 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2777 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2778 2779 if (port <= 0 || port > m) 2780 return -EINVAL; 2781 2782 n = find_first_bit(actv_ports.ports, dev->caps.num_ports); 2783 if (port <= n) 2784 port = n + 1; 2785 2786 return port; 2787 } 2788 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port); 2789 2790 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port) 2791 { 2792 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2793 if (test_bit(port - 1, actv_ports.ports)) 2794 return port - 2795 find_first_bit(actv_ports.ports, dev->caps.num_ports); 2796 2797 return -1; 2798 } 2799 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port); 2800 2801 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev, 2802 int port) 2803 { 2804 unsigned i; 2805 struct mlx4_slaves_pport slaves_pport; 2806 2807 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2808 2809 if (port <= 0 || port > dev->caps.num_ports) 2810 return slaves_pport; 2811 2812 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2813 struct mlx4_active_ports actv_ports = 2814 mlx4_get_active_ports(dev, i); 2815 if (test_bit(port - 1, actv_ports.ports)) 2816 set_bit(i, slaves_pport.slaves); 2817 } 2818 2819 return slaves_pport; 2820 } 2821 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport); 2822 2823 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( 2824 struct mlx4_dev *dev, 2825 const struct mlx4_active_ports *crit_ports) 2826 { 2827 unsigned i; 2828 struct mlx4_slaves_pport slaves_pport; 2829 2830 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2831 2832 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2833 struct mlx4_active_ports actv_ports = 2834 mlx4_get_active_ports(dev, i); 2835 if (bitmap_equal(crit_ports->ports, actv_ports.ports, 2836 dev->caps.num_ports)) 2837 set_bit(i, slaves_pport.slaves); 2838 } 2839 2840 return slaves_pport; 2841 } 2842 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); 2843 2844 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) 2845 { 2846 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2847 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) 2848 + 1; 2849 int max_port = min_port + 2850 bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2851 2852 if (port < min_port) 2853 port = min_port; 2854 else if (port >= max_port) 2855 port = max_port - 1; 2856 2857 return port; 2858 } 2859 2860 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port, 2861 int max_tx_rate) 2862 { 2863 int i; 2864 int err; 2865 struct mlx4_qos_manager *port_qos; 2866 struct mlx4_dev *dev = &priv->dev; 2867 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP]; 2868 2869 port_qos = &priv->mfunc.master.qos_ctl[port]; 2870 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP); 2871 2872 if (slave > port_qos->num_of_qos_vfs) { 2873 mlx4_info(dev, "No availible VPP resources for this VF\n"); 2874 return -EINVAL; 2875 } 2876 2877 /* Query for default QoS values from Vport 0 is needed */ 2878 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos); 2879 if (err) { 2880 mlx4_info(dev, "Failed to query Vport 0 QoS values\n"); 2881 return err; 2882 } 2883 2884 for (i = 0; i < MLX4_NUM_UP; i++) { 2885 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) { 2886 vpp_qos[i].max_avg_bw = max_tx_rate; 2887 vpp_qos[i].enable = 1; 2888 } else { 2889 /* if user supplied tx_rate == 0, meaning no rate limit 2890 * configuration is required. so we are leaving the 2891 * value of max_avg_bw as queried from Vport 0. 2892 */ 2893 vpp_qos[i].enable = 0; 2894 } 2895 } 2896 2897 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos); 2898 if (err) { 2899 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave); 2900 return err; 2901 } 2902 2903 return 0; 2904 } 2905 2906 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port, 2907 struct mlx4_vport_state *vf_admin) 2908 { 2909 struct mlx4_qos_manager *info; 2910 struct mlx4_priv *priv = mlx4_priv(dev); 2911 2912 if (!mlx4_is_master(dev) || 2913 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 2914 return false; 2915 2916 info = &priv->mfunc.master.qos_ctl[port]; 2917 2918 if (vf_admin->default_vlan != MLX4_VGT && 2919 test_bit(vf_admin->default_qos, info->priority_bm)) 2920 return true; 2921 2922 return false; 2923 } 2924 2925 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, 2926 struct mlx4_vport_state *vf_admin, 2927 int vlan, int qos) 2928 { 2929 struct mlx4_vport_state dummy_admin = {0}; 2930 2931 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) || 2932 !vf_admin->tx_rate) 2933 return true; 2934 2935 dummy_admin.default_qos = qos; 2936 dummy_admin.default_vlan = vlan; 2937 2938 /* VF wants to move to other VST state which is valid with current 2939 * rate limit. Either differnt default vlan in VST or other 2940 * supported QoS priority. Otherwise we don't allow this change when 2941 * the TX rate is still configured. 2942 */ 2943 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin)) 2944 return true; 2945 2946 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n", 2947 (vlan == MLX4_VGT) ? "VGT" : "VST"); 2948 2949 if (vlan != MLX4_VGT) 2950 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos); 2951 2952 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n"); 2953 2954 return false; 2955 } 2956 2957 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) 2958 { 2959 struct mlx4_priv *priv = mlx4_priv(dev); 2960 struct mlx4_vport_state *s_info; 2961 int slave; 2962 2963 if (!mlx4_is_master(dev)) 2964 return -EPROTONOSUPPORT; 2965 2966 slave = mlx4_get_slave_indx(dev, vf); 2967 if (slave < 0) 2968 return -EINVAL; 2969 2970 port = mlx4_slaves_closest_port(dev, slave, port); 2971 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 2972 s_info->mac = mac; 2973 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n", 2974 vf, port, (unsigned long long)s_info->mac); 2975 return 0; 2976 } 2977 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac); 2978 2979 2980 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos, 2981 __be16 proto) 2982 { 2983 struct mlx4_priv *priv = mlx4_priv(dev); 2984 struct mlx4_vport_state *vf_admin; 2985 struct mlx4_slave_state *slave_state; 2986 struct mlx4_vport_oper_state *vf_oper; 2987 int slave; 2988 2989 if ((!mlx4_is_master(dev)) || 2990 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL)) 2991 return -EPROTONOSUPPORT; 2992 2993 if ((vlan > 4095) || (qos > 7)) 2994 return -EINVAL; 2995 2996 if (proto == htons(ETH_P_8021AD) && 2997 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP)) 2998 return -EPROTONOSUPPORT; 2999 3000 if (proto != htons(ETH_P_8021Q) && 3001 proto != htons(ETH_P_8021AD)) 3002 return -EINVAL; 3003 3004 if ((proto == htons(ETH_P_8021AD)) && 3005 ((vlan == 0) || (vlan == MLX4_VGT))) 3006 return -EINVAL; 3007 3008 slave = mlx4_get_slave_indx(dev, vf); 3009 if (slave < 0) 3010 return -EINVAL; 3011 3012 slave_state = &priv->mfunc.master.slave_state[slave]; 3013 if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) && 3014 (!slave_state->vst_qinq_supported)) { 3015 mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf); 3016 return -EPROTONOSUPPORT; 3017 } 3018 port = mlx4_slaves_closest_port(dev, slave, port); 3019 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3020 vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3021 3022 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos)) 3023 return -EPERM; 3024 3025 if ((0 == vlan) && (0 == qos)) 3026 vf_admin->default_vlan = MLX4_VGT; 3027 else 3028 vf_admin->default_vlan = vlan; 3029 vf_admin->default_qos = qos; 3030 vf_admin->vlan_proto = proto; 3031 3032 /* If rate was configured prior to VST, we saved the configured rate 3033 * in vf_admin->rate and now, if priority supported we enforce the QoS 3034 */ 3035 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) && 3036 vf_admin->tx_rate) 3037 vf_admin->qos_vport = slave; 3038 3039 /* Try to activate new vf state without restart, 3040 * this option is not supported while moving to VST QinQ mode. 3041 */ 3042 if ((proto == htons(ETH_P_8021AD) && 3043 vf_oper->state.vlan_proto != proto) || 3044 mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3045 mlx4_info(dev, 3046 "updating vf %d port %d config will take effect on next VF restart\n", 3047 vf, port); 3048 return 0; 3049 } 3050 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan); 3051 3052 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate, 3053 int max_tx_rate) 3054 { 3055 int err; 3056 int slave; 3057 struct mlx4_vport_state *vf_admin; 3058 struct mlx4_priv *priv = mlx4_priv(dev); 3059 3060 if (!mlx4_is_master(dev) || 3061 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 3062 return -EPROTONOSUPPORT; 3063 3064 if (min_tx_rate) { 3065 mlx4_info(dev, "Minimum BW share not supported\n"); 3066 return -EPROTONOSUPPORT; 3067 } 3068 3069 slave = mlx4_get_slave_indx(dev, vf); 3070 if (slave < 0) 3071 return -EINVAL; 3072 3073 port = mlx4_slaves_closest_port(dev, slave, port); 3074 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3075 3076 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate); 3077 if (err) { 3078 mlx4_info(dev, "vf %d failed to set rate %d\n", vf, 3079 max_tx_rate); 3080 return err; 3081 } 3082 3083 vf_admin->tx_rate = max_tx_rate; 3084 /* if VF is not in supported mode (VST with supported prio), 3085 * we do not change vport configuration for its QPs, but save 3086 * the rate, so it will be enforced when it moves to supported 3087 * mode next time. 3088 */ 3089 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) { 3090 mlx4_info(dev, 3091 "rate set for VF %d when not in valid state\n", vf); 3092 3093 if (vf_admin->default_vlan != MLX4_VGT) 3094 mlx4_info(dev, "VST priority not supported by QoS\n"); 3095 else 3096 mlx4_info(dev, "VF in VGT mode (needed VST)\n"); 3097 3098 mlx4_info(dev, 3099 "rate %d take affect when VF moves to valid state\n", 3100 max_tx_rate); 3101 return 0; 3102 } 3103 3104 /* If user sets rate 0 assigning default vport for its QPs */ 3105 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT; 3106 3107 if (priv->mfunc.master.slave_state[slave].active && 3108 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) 3109 mlx4_master_immediate_activate_vlan_qos(priv, slave, port); 3110 3111 return 0; 3112 } 3113 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate); 3114 3115 /* mlx4_get_slave_default_vlan - 3116 * return true if VST ( default vlan) 3117 * if VST, will return vlan & qos (if not NULL) 3118 */ 3119 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, 3120 u16 *vlan, u8 *qos) 3121 { 3122 struct mlx4_vport_oper_state *vp_oper; 3123 struct mlx4_priv *priv; 3124 3125 priv = mlx4_priv(dev); 3126 port = mlx4_slaves_closest_port(dev, slave, port); 3127 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3128 3129 if (MLX4_VGT != vp_oper->state.default_vlan) { 3130 if (vlan) 3131 *vlan = vp_oper->state.default_vlan; 3132 if (qos) 3133 *qos = vp_oper->state.default_qos; 3134 return true; 3135 } 3136 return false; 3137 } 3138 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan); 3139 3140 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 3141 { 3142 struct mlx4_priv *priv = mlx4_priv(dev); 3143 struct mlx4_vport_state *s_info; 3144 int slave; 3145 3146 if ((!mlx4_is_master(dev)) || 3147 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM)) 3148 return -EPROTONOSUPPORT; 3149 3150 slave = mlx4_get_slave_indx(dev, vf); 3151 if (slave < 0) 3152 return -EINVAL; 3153 3154 port = mlx4_slaves_closest_port(dev, slave, port); 3155 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3156 s_info->spoofchk = setting; 3157 3158 return 0; 3159 } 3160 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk); 3161 3162 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, 3163 struct mlx4_counter *counter_stats, int reset) 3164 { 3165 struct mlx4_cmd_mailbox *mailbox = NULL; 3166 struct mlx4_counter *tmp_counter; 3167 int err; 3168 u32 if_stat_in_mod; 3169 3170 if (!counter_stats) 3171 return -EINVAL; 3172 3173 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) 3174 return 0; 3175 3176 mailbox = mlx4_alloc_cmd_mailbox(dev); 3177 if (IS_ERR(mailbox)) 3178 return PTR_ERR(mailbox); 3179 3180 memset(mailbox->buf, 0, sizeof(struct mlx4_counter)); 3181 if_stat_in_mod = counter_index; 3182 if (reset) 3183 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET; 3184 err = mlx4_cmd_box(dev, 0, mailbox->dma, 3185 if_stat_in_mod, 0, 3186 MLX4_CMD_QUERY_IF_STAT, 3187 MLX4_CMD_TIME_CLASS_C, 3188 MLX4_CMD_NATIVE); 3189 if (err) { 3190 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n", 3191 __func__, counter_index); 3192 goto if_stat_out; 3193 } 3194 tmp_counter = (struct mlx4_counter *)mailbox->buf; 3195 counter_stats->counter_mode = tmp_counter->counter_mode; 3196 if (counter_stats->counter_mode == 0) { 3197 counter_stats->rx_frames = 3198 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) + 3199 be64_to_cpu(tmp_counter->rx_frames)); 3200 counter_stats->tx_frames = 3201 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) + 3202 be64_to_cpu(tmp_counter->tx_frames)); 3203 counter_stats->rx_bytes = 3204 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) + 3205 be64_to_cpu(tmp_counter->rx_bytes)); 3206 counter_stats->tx_bytes = 3207 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) + 3208 be64_to_cpu(tmp_counter->tx_bytes)); 3209 } 3210 3211 if_stat_out: 3212 mlx4_free_cmd_mailbox(dev, mailbox); 3213 3214 return err; 3215 } 3216 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); 3217 3218 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) 3219 { 3220 struct mlx4_priv *priv = mlx4_priv(dev); 3221 3222 if (slave < 1 || slave >= dev->num_slaves || 3223 port < 1 || port > MLX4_MAX_PORTS) 3224 return 0; 3225 3226 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] == 3227 MLX4_VF_SMI_ENABLED; 3228 } 3229 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled); 3230 3231 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port) 3232 { 3233 struct mlx4_priv *priv = mlx4_priv(dev); 3234 3235 if (slave == mlx4_master_func_num(dev)) 3236 return 1; 3237 3238 if (slave < 1 || slave >= dev->num_slaves || 3239 port < 1 || port > MLX4_MAX_PORTS) 3240 return 0; 3241 3242 return priv->mfunc.master.vf_admin[slave].enable_smi[port] == 3243 MLX4_VF_SMI_ENABLED; 3244 } 3245 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin); 3246 3247 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port, 3248 int enabled) 3249 { 3250 struct mlx4_priv *priv = mlx4_priv(dev); 3251 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 3252 &priv->dev, slave); 3253 int min_port = find_first_bit(actv_ports.ports, 3254 priv->dev.caps.num_ports) + 1; 3255 int max_port = min_port - 1 + 3256 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 3257 3258 if (slave == mlx4_master_func_num(dev)) 3259 return 0; 3260 3261 if (slave < 1 || slave >= dev->num_slaves || 3262 port < 1 || port > MLX4_MAX_PORTS || 3263 enabled < 0 || enabled > 1) 3264 return -EINVAL; 3265 3266 if (min_port == max_port && dev->caps.num_ports > 1) { 3267 mlx4_info(dev, "SMI access disallowed for single ported VFs\n"); 3268 return -EPROTONOSUPPORT; 3269 } 3270 3271 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled; 3272 return 0; 3273 } 3274 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin); 3275 3276