1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005, 2006, 2007, 2008 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/export.h> 38 #include <linux/pci.h> 39 #include <linux/errno.h> 40 41 #include <linux/mlx4/cmd.h> 42 #include <linux/mlx4/device.h> 43 #include <linux/semaphore.h> 44 #include <rdma/ib_smi.h> 45 #include <linux/delay.h> 46 47 #include <asm/io.h> 48 49 #include "mlx4.h" 50 #include "fw.h" 51 #include "fw_qos.h" 52 #include "mlx4_stats.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, 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 master_addr:0x%llx slave_id:%d size:%d\n", 828 slave_addr, master_addr, slave, size); 829 return -EINVAL; 830 } 831 832 if (is_read) { 833 in_param = (u64) slave | slave_addr; 834 out_param = (u64) dev->caps.function | master_addr; 835 } else { 836 in_param = (u64) dev->caps.function | master_addr; 837 out_param = (u64) slave | slave_addr; 838 } 839 840 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0, 841 MLX4_CMD_ACCESS_MEM, 842 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 843 } 844 845 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey, 846 struct mlx4_cmd_mailbox *inbox, 847 struct mlx4_cmd_mailbox *outbox) 848 { 849 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf); 850 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf); 851 int err; 852 int i; 853 854 if (index & 0x1f) 855 return -EINVAL; 856 857 in_mad->attr_mod = cpu_to_be32(index / 32); 858 859 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, 860 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, 861 MLX4_CMD_NATIVE); 862 if (err) 863 return err; 864 865 for (i = 0; i < 32; ++i) 866 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]); 867 868 return err; 869 } 870 871 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table, 872 struct mlx4_cmd_mailbox *inbox, 873 struct mlx4_cmd_mailbox *outbox) 874 { 875 int i; 876 int err; 877 878 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) { 879 err = query_pkey_block(dev, port, i, table + i, inbox, outbox); 880 if (err) 881 return err; 882 } 883 884 return 0; 885 } 886 #define PORT_CAPABILITY_LOCATION_IN_SMP 20 887 #define PORT_STATE_OFFSET 32 888 889 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf) 890 { 891 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP) 892 return IB_PORT_ACTIVE; 893 else 894 return IB_PORT_DOWN; 895 } 896 897 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave, 898 struct mlx4_vhcr *vhcr, 899 struct mlx4_cmd_mailbox *inbox, 900 struct mlx4_cmd_mailbox *outbox, 901 struct mlx4_cmd_info *cmd) 902 { 903 struct ib_smp *smp = inbox->buf; 904 u32 index; 905 u8 port, slave_port; 906 u8 opcode_modifier; 907 u16 *table; 908 int err; 909 int vidx, pidx; 910 int network_view; 911 struct mlx4_priv *priv = mlx4_priv(dev); 912 struct ib_smp *outsmp = outbox->buf; 913 __be16 *outtab = (__be16 *)(outsmp->data); 914 __be32 slave_cap_mask; 915 __be64 slave_node_guid; 916 917 slave_port = vhcr->in_modifier; 918 port = mlx4_slave_convert_port(dev, slave, slave_port); 919 920 /* network-view bit is for driver use only, and should not be passed to FW */ 921 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */ 922 network_view = !!(vhcr->op_modifier & 0x8); 923 924 if (smp->base_version == 1 && 925 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 926 smp->class_version == 1) { 927 /* host view is paravirtualized */ 928 if (!network_view && smp->method == IB_MGMT_METHOD_GET) { 929 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) { 930 index = be32_to_cpu(smp->attr_mod); 931 if (port < 1 || port > dev->caps.num_ports) 932 return -EINVAL; 933 table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1, 934 sizeof(*table) * 32, GFP_KERNEL); 935 936 if (!table) 937 return -ENOMEM; 938 /* need to get the full pkey table because the paravirtualized 939 * pkeys may be scattered among several pkey blocks. 940 */ 941 err = get_full_pkey_table(dev, port, table, inbox, outbox); 942 if (!err) { 943 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) { 944 pidx = priv->virt2phys_pkey[slave][port - 1][vidx]; 945 outtab[vidx % 32] = cpu_to_be16(table[pidx]); 946 } 947 } 948 kfree(table); 949 return err; 950 } 951 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) { 952 /*get the slave specific caps:*/ 953 /*do the command */ 954 smp->attr_mod = cpu_to_be32(port); 955 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 956 port, opcode_modifier, 957 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 958 /* modify the response for slaves */ 959 if (!err && slave != mlx4_master_func_num(dev)) { 960 u8 *state = outsmp->data + PORT_STATE_OFFSET; 961 962 *state = (*state & 0xf0) | vf_port_state(dev, port, slave); 963 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; 964 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4); 965 } 966 return err; 967 } 968 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) { 969 __be64 guid = mlx4_get_admin_guid(dev, slave, 970 port); 971 972 /* set the PF admin guid to the FW/HW burned 973 * GUID, if it wasn't yet set 974 */ 975 if (slave == 0 && guid == 0) { 976 smp->attr_mod = 0; 977 err = mlx4_cmd_box(dev, 978 inbox->dma, 979 outbox->dma, 980 vhcr->in_modifier, 981 opcode_modifier, 982 vhcr->op, 983 MLX4_CMD_TIME_CLASS_C, 984 MLX4_CMD_NATIVE); 985 if (err) 986 return err; 987 mlx4_set_admin_guid(dev, 988 *(__be64 *)outsmp-> 989 data, slave, port); 990 } else { 991 memcpy(outsmp->data, &guid, 8); 992 } 993 994 /* clean all other gids */ 995 memset(outsmp->data + 8, 0, 56); 996 return 0; 997 } 998 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) { 999 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1000 port, opcode_modifier, 1001 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1002 if (!err) { 1003 slave_node_guid = mlx4_get_slave_node_guid(dev, slave); 1004 memcpy(outsmp->data + 12, &slave_node_guid, 8); 1005 } 1006 return err; 1007 } 1008 } 1009 } 1010 1011 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs. 1012 * These are the MADs used by ib verbs (such as ib_query_gids). 1013 */ 1014 if (slave != mlx4_master_func_num(dev) && 1015 !mlx4_vf_smi_enabled(dev, slave, port)) { 1016 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 1017 smp->method == IB_MGMT_METHOD_GET) || network_view) { 1018 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", 1019 slave, smp->mgmt_class, smp->method, 1020 network_view ? "Network" : "Host", 1021 be16_to_cpu(smp->attr_id)); 1022 return -EPERM; 1023 } 1024 } 1025 1026 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1027 vhcr->in_modifier, opcode_modifier, 1028 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1029 } 1030 1031 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave, 1032 struct mlx4_vhcr *vhcr, 1033 struct mlx4_cmd_mailbox *inbox, 1034 struct mlx4_cmd_mailbox *outbox, 1035 struct mlx4_cmd_info *cmd) 1036 { 1037 return -EPERM; 1038 } 1039 1040 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave, 1041 struct mlx4_vhcr *vhcr, 1042 struct mlx4_cmd_mailbox *inbox, 1043 struct mlx4_cmd_mailbox *outbox, 1044 struct mlx4_cmd_info *cmd) 1045 { 1046 u64 in_param; 1047 u64 out_param; 1048 int err; 1049 1050 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; 1051 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; 1052 if (cmd->encode_slave_id) { 1053 in_param &= 0xffffffffffffff00ll; 1054 in_param |= slave; 1055 } 1056 1057 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, 1058 vhcr->in_modifier, vhcr->op_modifier, vhcr->op, 1059 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 1060 1061 if (cmd->out_is_imm) 1062 vhcr->out_param = out_param; 1063 1064 return err; 1065 } 1066 1067 static struct mlx4_cmd_info cmd_info[] = { 1068 { 1069 .opcode = MLX4_CMD_QUERY_FW, 1070 .has_inbox = false, 1071 .has_outbox = true, 1072 .out_is_imm = false, 1073 .encode_slave_id = false, 1074 .verify = NULL, 1075 .wrapper = mlx4_QUERY_FW_wrapper 1076 }, 1077 { 1078 .opcode = MLX4_CMD_QUERY_HCA, 1079 .has_inbox = false, 1080 .has_outbox = true, 1081 .out_is_imm = false, 1082 .encode_slave_id = false, 1083 .verify = NULL, 1084 .wrapper = NULL 1085 }, 1086 { 1087 .opcode = MLX4_CMD_QUERY_DEV_CAP, 1088 .has_inbox = false, 1089 .has_outbox = true, 1090 .out_is_imm = false, 1091 .encode_slave_id = false, 1092 .verify = NULL, 1093 .wrapper = mlx4_QUERY_DEV_CAP_wrapper 1094 }, 1095 { 1096 .opcode = MLX4_CMD_QUERY_FUNC_CAP, 1097 .has_inbox = false, 1098 .has_outbox = true, 1099 .out_is_imm = false, 1100 .encode_slave_id = false, 1101 .verify = NULL, 1102 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper 1103 }, 1104 { 1105 .opcode = MLX4_CMD_QUERY_ADAPTER, 1106 .has_inbox = false, 1107 .has_outbox = true, 1108 .out_is_imm = false, 1109 .encode_slave_id = false, 1110 .verify = NULL, 1111 .wrapper = NULL 1112 }, 1113 { 1114 .opcode = MLX4_CMD_INIT_PORT, 1115 .has_inbox = false, 1116 .has_outbox = false, 1117 .out_is_imm = false, 1118 .encode_slave_id = false, 1119 .verify = NULL, 1120 .wrapper = mlx4_INIT_PORT_wrapper 1121 }, 1122 { 1123 .opcode = MLX4_CMD_CLOSE_PORT, 1124 .has_inbox = false, 1125 .has_outbox = false, 1126 .out_is_imm = false, 1127 .encode_slave_id = false, 1128 .verify = NULL, 1129 .wrapper = mlx4_CLOSE_PORT_wrapper 1130 }, 1131 { 1132 .opcode = MLX4_CMD_QUERY_PORT, 1133 .has_inbox = false, 1134 .has_outbox = true, 1135 .out_is_imm = false, 1136 .encode_slave_id = false, 1137 .verify = NULL, 1138 .wrapper = mlx4_QUERY_PORT_wrapper 1139 }, 1140 { 1141 .opcode = MLX4_CMD_SET_PORT, 1142 .has_inbox = true, 1143 .has_outbox = false, 1144 .out_is_imm = false, 1145 .encode_slave_id = false, 1146 .verify = NULL, 1147 .wrapper = mlx4_SET_PORT_wrapper 1148 }, 1149 { 1150 .opcode = MLX4_CMD_MAP_EQ, 1151 .has_inbox = false, 1152 .has_outbox = false, 1153 .out_is_imm = false, 1154 .encode_slave_id = false, 1155 .verify = NULL, 1156 .wrapper = mlx4_MAP_EQ_wrapper 1157 }, 1158 { 1159 .opcode = MLX4_CMD_SW2HW_EQ, 1160 .has_inbox = true, 1161 .has_outbox = false, 1162 .out_is_imm = false, 1163 .encode_slave_id = true, 1164 .verify = NULL, 1165 .wrapper = mlx4_SW2HW_EQ_wrapper 1166 }, 1167 { 1168 .opcode = MLX4_CMD_HW_HEALTH_CHECK, 1169 .has_inbox = false, 1170 .has_outbox = false, 1171 .out_is_imm = false, 1172 .encode_slave_id = false, 1173 .verify = NULL, 1174 .wrapper = NULL 1175 }, 1176 { 1177 .opcode = MLX4_CMD_NOP, 1178 .has_inbox = false, 1179 .has_outbox = false, 1180 .out_is_imm = false, 1181 .encode_slave_id = false, 1182 .verify = NULL, 1183 .wrapper = NULL 1184 }, 1185 { 1186 .opcode = MLX4_CMD_CONFIG_DEV, 1187 .has_inbox = false, 1188 .has_outbox = true, 1189 .out_is_imm = false, 1190 .encode_slave_id = false, 1191 .verify = NULL, 1192 .wrapper = mlx4_CONFIG_DEV_wrapper 1193 }, 1194 { 1195 .opcode = MLX4_CMD_ALLOC_RES, 1196 .has_inbox = false, 1197 .has_outbox = false, 1198 .out_is_imm = true, 1199 .encode_slave_id = false, 1200 .verify = NULL, 1201 .wrapper = mlx4_ALLOC_RES_wrapper 1202 }, 1203 { 1204 .opcode = MLX4_CMD_FREE_RES, 1205 .has_inbox = false, 1206 .has_outbox = false, 1207 .out_is_imm = false, 1208 .encode_slave_id = false, 1209 .verify = NULL, 1210 .wrapper = mlx4_FREE_RES_wrapper 1211 }, 1212 { 1213 .opcode = MLX4_CMD_SW2HW_MPT, 1214 .has_inbox = true, 1215 .has_outbox = false, 1216 .out_is_imm = false, 1217 .encode_slave_id = true, 1218 .verify = NULL, 1219 .wrapper = mlx4_SW2HW_MPT_wrapper 1220 }, 1221 { 1222 .opcode = MLX4_CMD_QUERY_MPT, 1223 .has_inbox = false, 1224 .has_outbox = true, 1225 .out_is_imm = false, 1226 .encode_slave_id = false, 1227 .verify = NULL, 1228 .wrapper = mlx4_QUERY_MPT_wrapper 1229 }, 1230 { 1231 .opcode = MLX4_CMD_HW2SW_MPT, 1232 .has_inbox = false, 1233 .has_outbox = false, 1234 .out_is_imm = false, 1235 .encode_slave_id = false, 1236 .verify = NULL, 1237 .wrapper = mlx4_HW2SW_MPT_wrapper 1238 }, 1239 { 1240 .opcode = MLX4_CMD_READ_MTT, 1241 .has_inbox = false, 1242 .has_outbox = true, 1243 .out_is_imm = false, 1244 .encode_slave_id = false, 1245 .verify = NULL, 1246 .wrapper = NULL 1247 }, 1248 { 1249 .opcode = MLX4_CMD_WRITE_MTT, 1250 .has_inbox = true, 1251 .has_outbox = false, 1252 .out_is_imm = false, 1253 .encode_slave_id = false, 1254 .verify = NULL, 1255 .wrapper = mlx4_WRITE_MTT_wrapper 1256 }, 1257 { 1258 .opcode = MLX4_CMD_SYNC_TPT, 1259 .has_inbox = true, 1260 .has_outbox = false, 1261 .out_is_imm = false, 1262 .encode_slave_id = false, 1263 .verify = NULL, 1264 .wrapper = NULL 1265 }, 1266 { 1267 .opcode = MLX4_CMD_HW2SW_EQ, 1268 .has_inbox = false, 1269 .has_outbox = false, 1270 .out_is_imm = false, 1271 .encode_slave_id = true, 1272 .verify = NULL, 1273 .wrapper = mlx4_HW2SW_EQ_wrapper 1274 }, 1275 { 1276 .opcode = MLX4_CMD_QUERY_EQ, 1277 .has_inbox = false, 1278 .has_outbox = true, 1279 .out_is_imm = false, 1280 .encode_slave_id = true, 1281 .verify = NULL, 1282 .wrapper = mlx4_QUERY_EQ_wrapper 1283 }, 1284 { 1285 .opcode = MLX4_CMD_SW2HW_CQ, 1286 .has_inbox = true, 1287 .has_outbox = false, 1288 .out_is_imm = false, 1289 .encode_slave_id = true, 1290 .verify = NULL, 1291 .wrapper = mlx4_SW2HW_CQ_wrapper 1292 }, 1293 { 1294 .opcode = MLX4_CMD_HW2SW_CQ, 1295 .has_inbox = false, 1296 .has_outbox = false, 1297 .out_is_imm = false, 1298 .encode_slave_id = false, 1299 .verify = NULL, 1300 .wrapper = mlx4_HW2SW_CQ_wrapper 1301 }, 1302 { 1303 .opcode = MLX4_CMD_QUERY_CQ, 1304 .has_inbox = false, 1305 .has_outbox = true, 1306 .out_is_imm = false, 1307 .encode_slave_id = false, 1308 .verify = NULL, 1309 .wrapper = mlx4_QUERY_CQ_wrapper 1310 }, 1311 { 1312 .opcode = MLX4_CMD_MODIFY_CQ, 1313 .has_inbox = true, 1314 .has_outbox = false, 1315 .out_is_imm = true, 1316 .encode_slave_id = false, 1317 .verify = NULL, 1318 .wrapper = mlx4_MODIFY_CQ_wrapper 1319 }, 1320 { 1321 .opcode = MLX4_CMD_SW2HW_SRQ, 1322 .has_inbox = true, 1323 .has_outbox = false, 1324 .out_is_imm = false, 1325 .encode_slave_id = true, 1326 .verify = NULL, 1327 .wrapper = mlx4_SW2HW_SRQ_wrapper 1328 }, 1329 { 1330 .opcode = MLX4_CMD_HW2SW_SRQ, 1331 .has_inbox = false, 1332 .has_outbox = false, 1333 .out_is_imm = false, 1334 .encode_slave_id = false, 1335 .verify = NULL, 1336 .wrapper = mlx4_HW2SW_SRQ_wrapper 1337 }, 1338 { 1339 .opcode = MLX4_CMD_QUERY_SRQ, 1340 .has_inbox = false, 1341 .has_outbox = true, 1342 .out_is_imm = false, 1343 .encode_slave_id = false, 1344 .verify = NULL, 1345 .wrapper = mlx4_QUERY_SRQ_wrapper 1346 }, 1347 { 1348 .opcode = MLX4_CMD_ARM_SRQ, 1349 .has_inbox = false, 1350 .has_outbox = false, 1351 .out_is_imm = false, 1352 .encode_slave_id = false, 1353 .verify = NULL, 1354 .wrapper = mlx4_ARM_SRQ_wrapper 1355 }, 1356 { 1357 .opcode = MLX4_CMD_RST2INIT_QP, 1358 .has_inbox = true, 1359 .has_outbox = false, 1360 .out_is_imm = false, 1361 .encode_slave_id = true, 1362 .verify = NULL, 1363 .wrapper = mlx4_RST2INIT_QP_wrapper 1364 }, 1365 { 1366 .opcode = MLX4_CMD_INIT2INIT_QP, 1367 .has_inbox = true, 1368 .has_outbox = false, 1369 .out_is_imm = false, 1370 .encode_slave_id = false, 1371 .verify = NULL, 1372 .wrapper = mlx4_INIT2INIT_QP_wrapper 1373 }, 1374 { 1375 .opcode = MLX4_CMD_INIT2RTR_QP, 1376 .has_inbox = true, 1377 .has_outbox = false, 1378 .out_is_imm = false, 1379 .encode_slave_id = false, 1380 .verify = NULL, 1381 .wrapper = mlx4_INIT2RTR_QP_wrapper 1382 }, 1383 { 1384 .opcode = MLX4_CMD_RTR2RTS_QP, 1385 .has_inbox = true, 1386 .has_outbox = false, 1387 .out_is_imm = false, 1388 .encode_slave_id = false, 1389 .verify = NULL, 1390 .wrapper = mlx4_RTR2RTS_QP_wrapper 1391 }, 1392 { 1393 .opcode = MLX4_CMD_RTS2RTS_QP, 1394 .has_inbox = true, 1395 .has_outbox = false, 1396 .out_is_imm = false, 1397 .encode_slave_id = false, 1398 .verify = NULL, 1399 .wrapper = mlx4_RTS2RTS_QP_wrapper 1400 }, 1401 { 1402 .opcode = MLX4_CMD_SQERR2RTS_QP, 1403 .has_inbox = true, 1404 .has_outbox = false, 1405 .out_is_imm = false, 1406 .encode_slave_id = false, 1407 .verify = NULL, 1408 .wrapper = mlx4_SQERR2RTS_QP_wrapper 1409 }, 1410 { 1411 .opcode = MLX4_CMD_2ERR_QP, 1412 .has_inbox = false, 1413 .has_outbox = false, 1414 .out_is_imm = false, 1415 .encode_slave_id = false, 1416 .verify = NULL, 1417 .wrapper = mlx4_GEN_QP_wrapper 1418 }, 1419 { 1420 .opcode = MLX4_CMD_RTS2SQD_QP, 1421 .has_inbox = false, 1422 .has_outbox = false, 1423 .out_is_imm = false, 1424 .encode_slave_id = false, 1425 .verify = NULL, 1426 .wrapper = mlx4_GEN_QP_wrapper 1427 }, 1428 { 1429 .opcode = MLX4_CMD_SQD2SQD_QP, 1430 .has_inbox = true, 1431 .has_outbox = false, 1432 .out_is_imm = false, 1433 .encode_slave_id = false, 1434 .verify = NULL, 1435 .wrapper = mlx4_SQD2SQD_QP_wrapper 1436 }, 1437 { 1438 .opcode = MLX4_CMD_SQD2RTS_QP, 1439 .has_inbox = true, 1440 .has_outbox = false, 1441 .out_is_imm = false, 1442 .encode_slave_id = false, 1443 .verify = NULL, 1444 .wrapper = mlx4_SQD2RTS_QP_wrapper 1445 }, 1446 { 1447 .opcode = MLX4_CMD_2RST_QP, 1448 .has_inbox = false, 1449 .has_outbox = false, 1450 .out_is_imm = false, 1451 .encode_slave_id = false, 1452 .verify = NULL, 1453 .wrapper = mlx4_2RST_QP_wrapper 1454 }, 1455 { 1456 .opcode = MLX4_CMD_QUERY_QP, 1457 .has_inbox = false, 1458 .has_outbox = true, 1459 .out_is_imm = false, 1460 .encode_slave_id = false, 1461 .verify = NULL, 1462 .wrapper = mlx4_GEN_QP_wrapper 1463 }, 1464 { 1465 .opcode = MLX4_CMD_SUSPEND_QP, 1466 .has_inbox = false, 1467 .has_outbox = false, 1468 .out_is_imm = false, 1469 .encode_slave_id = false, 1470 .verify = NULL, 1471 .wrapper = mlx4_GEN_QP_wrapper 1472 }, 1473 { 1474 .opcode = MLX4_CMD_UNSUSPEND_QP, 1475 .has_inbox = false, 1476 .has_outbox = false, 1477 .out_is_imm = false, 1478 .encode_slave_id = false, 1479 .verify = NULL, 1480 .wrapper = mlx4_GEN_QP_wrapper 1481 }, 1482 { 1483 .opcode = MLX4_CMD_UPDATE_QP, 1484 .has_inbox = true, 1485 .has_outbox = false, 1486 .out_is_imm = false, 1487 .encode_slave_id = false, 1488 .verify = NULL, 1489 .wrapper = mlx4_UPDATE_QP_wrapper 1490 }, 1491 { 1492 .opcode = MLX4_CMD_GET_OP_REQ, 1493 .has_inbox = false, 1494 .has_outbox = false, 1495 .out_is_imm = false, 1496 .encode_slave_id = false, 1497 .verify = NULL, 1498 .wrapper = mlx4_CMD_EPERM_wrapper, 1499 }, 1500 { 1501 .opcode = MLX4_CMD_ALLOCATE_VPP, 1502 .has_inbox = false, 1503 .has_outbox = true, 1504 .out_is_imm = false, 1505 .encode_slave_id = false, 1506 .verify = NULL, 1507 .wrapper = mlx4_CMD_EPERM_wrapper, 1508 }, 1509 { 1510 .opcode = MLX4_CMD_SET_VPORT_QOS, 1511 .has_inbox = false, 1512 .has_outbox = true, 1513 .out_is_imm = false, 1514 .encode_slave_id = false, 1515 .verify = NULL, 1516 .wrapper = mlx4_CMD_EPERM_wrapper, 1517 }, 1518 { 1519 .opcode = MLX4_CMD_CONF_SPECIAL_QP, 1520 .has_inbox = false, 1521 .has_outbox = false, 1522 .out_is_imm = false, 1523 .encode_slave_id = false, 1524 .verify = NULL, /* XXX verify: only demux can do this */ 1525 .wrapper = NULL 1526 }, 1527 { 1528 .opcode = MLX4_CMD_MAD_IFC, 1529 .has_inbox = true, 1530 .has_outbox = true, 1531 .out_is_imm = false, 1532 .encode_slave_id = false, 1533 .verify = NULL, 1534 .wrapper = mlx4_MAD_IFC_wrapper 1535 }, 1536 { 1537 .opcode = MLX4_CMD_MAD_DEMUX, 1538 .has_inbox = false, 1539 .has_outbox = false, 1540 .out_is_imm = false, 1541 .encode_slave_id = false, 1542 .verify = NULL, 1543 .wrapper = mlx4_CMD_EPERM_wrapper 1544 }, 1545 { 1546 .opcode = MLX4_CMD_QUERY_IF_STAT, 1547 .has_inbox = false, 1548 .has_outbox = true, 1549 .out_is_imm = false, 1550 .encode_slave_id = false, 1551 .verify = NULL, 1552 .wrapper = mlx4_QUERY_IF_STAT_wrapper 1553 }, 1554 { 1555 .opcode = MLX4_CMD_ACCESS_REG, 1556 .has_inbox = true, 1557 .has_outbox = true, 1558 .out_is_imm = false, 1559 .encode_slave_id = false, 1560 .verify = NULL, 1561 .wrapper = mlx4_ACCESS_REG_wrapper, 1562 }, 1563 { 1564 .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE, 1565 .has_inbox = false, 1566 .has_outbox = false, 1567 .out_is_imm = false, 1568 .encode_slave_id = false, 1569 .verify = NULL, 1570 .wrapper = mlx4_CMD_EPERM_wrapper, 1571 }, 1572 /* Native multicast commands are not available for guests */ 1573 { 1574 .opcode = MLX4_CMD_QP_ATTACH, 1575 .has_inbox = true, 1576 .has_outbox = false, 1577 .out_is_imm = false, 1578 .encode_slave_id = false, 1579 .verify = NULL, 1580 .wrapper = mlx4_QP_ATTACH_wrapper 1581 }, 1582 { 1583 .opcode = MLX4_CMD_PROMISC, 1584 .has_inbox = false, 1585 .has_outbox = false, 1586 .out_is_imm = false, 1587 .encode_slave_id = false, 1588 .verify = NULL, 1589 .wrapper = mlx4_PROMISC_wrapper 1590 }, 1591 /* Ethernet specific commands */ 1592 { 1593 .opcode = MLX4_CMD_SET_VLAN_FLTR, 1594 .has_inbox = true, 1595 .has_outbox = false, 1596 .out_is_imm = false, 1597 .encode_slave_id = false, 1598 .verify = NULL, 1599 .wrapper = mlx4_SET_VLAN_FLTR_wrapper 1600 }, 1601 { 1602 .opcode = MLX4_CMD_SET_MCAST_FLTR, 1603 .has_inbox = false, 1604 .has_outbox = false, 1605 .out_is_imm = false, 1606 .encode_slave_id = false, 1607 .verify = NULL, 1608 .wrapper = mlx4_SET_MCAST_FLTR_wrapper 1609 }, 1610 { 1611 .opcode = MLX4_CMD_DUMP_ETH_STATS, 1612 .has_inbox = false, 1613 .has_outbox = true, 1614 .out_is_imm = false, 1615 .encode_slave_id = false, 1616 .verify = NULL, 1617 .wrapper = mlx4_DUMP_ETH_STATS_wrapper 1618 }, 1619 { 1620 .opcode = MLX4_CMD_INFORM_FLR_DONE, 1621 .has_inbox = false, 1622 .has_outbox = false, 1623 .out_is_imm = false, 1624 .encode_slave_id = false, 1625 .verify = NULL, 1626 .wrapper = NULL 1627 }, 1628 /* flow steering commands */ 1629 { 1630 .opcode = MLX4_QP_FLOW_STEERING_ATTACH, 1631 .has_inbox = true, 1632 .has_outbox = false, 1633 .out_is_imm = true, 1634 .encode_slave_id = false, 1635 .verify = NULL, 1636 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper 1637 }, 1638 { 1639 .opcode = MLX4_QP_FLOW_STEERING_DETACH, 1640 .has_inbox = false, 1641 .has_outbox = false, 1642 .out_is_imm = false, 1643 .encode_slave_id = false, 1644 .verify = NULL, 1645 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper 1646 }, 1647 { 1648 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE, 1649 .has_inbox = false, 1650 .has_outbox = false, 1651 .out_is_imm = false, 1652 .encode_slave_id = false, 1653 .verify = NULL, 1654 .wrapper = mlx4_CMD_EPERM_wrapper 1655 }, 1656 { 1657 .opcode = MLX4_CMD_VIRT_PORT_MAP, 1658 .has_inbox = false, 1659 .has_outbox = false, 1660 .out_is_imm = false, 1661 .encode_slave_id = false, 1662 .verify = NULL, 1663 .wrapper = mlx4_CMD_EPERM_wrapper 1664 }, 1665 }; 1666 1667 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 1668 struct mlx4_vhcr_cmd *in_vhcr) 1669 { 1670 struct mlx4_priv *priv = mlx4_priv(dev); 1671 struct mlx4_cmd_info *cmd = NULL; 1672 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr; 1673 struct mlx4_vhcr *vhcr; 1674 struct mlx4_cmd_mailbox *inbox = NULL; 1675 struct mlx4_cmd_mailbox *outbox = NULL; 1676 u64 in_param; 1677 u64 out_param; 1678 int ret = 0; 1679 int i; 1680 int err = 0; 1681 1682 /* Create sw representation of Virtual HCR */ 1683 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL); 1684 if (!vhcr) 1685 return -ENOMEM; 1686 1687 /* DMA in the vHCR */ 1688 if (!in_vhcr) { 1689 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1690 priv->mfunc.master.slave_state[slave].vhcr_dma, 1691 ALIGN(sizeof(struct mlx4_vhcr_cmd), 1692 MLX4_ACCESS_MEM_ALIGN), 1); 1693 if (ret) { 1694 if (!(dev->persist->state & 1695 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1696 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n", 1697 __func__, ret); 1698 kfree(vhcr); 1699 return ret; 1700 } 1701 } 1702 1703 /* Fill SW VHCR fields */ 1704 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param); 1705 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param); 1706 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier); 1707 vhcr->token = be16_to_cpu(vhcr_cmd->token); 1708 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff; 1709 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12); 1710 vhcr->e_bit = vhcr_cmd->flags & (1 << 6); 1711 1712 /* Lookup command */ 1713 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) { 1714 if (vhcr->op == cmd_info[i].opcode) { 1715 cmd = &cmd_info[i]; 1716 break; 1717 } 1718 } 1719 if (!cmd) { 1720 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n", 1721 vhcr->op, slave); 1722 vhcr_cmd->status = CMD_STAT_BAD_PARAM; 1723 goto out_status; 1724 } 1725 1726 /* Read inbox */ 1727 if (cmd->has_inbox) { 1728 vhcr->in_param &= INBOX_MASK; 1729 inbox = mlx4_alloc_cmd_mailbox(dev); 1730 if (IS_ERR(inbox)) { 1731 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1732 inbox = NULL; 1733 goto out_status; 1734 } 1735 1736 ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave, 1737 vhcr->in_param, 1738 MLX4_MAILBOX_SIZE, 1); 1739 if (ret) { 1740 if (!(dev->persist->state & 1741 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1742 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n", 1743 __func__, cmd->opcode); 1744 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR; 1745 goto out_status; 1746 } 1747 } 1748 1749 /* Apply permission and bound checks if applicable */ 1750 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) { 1751 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n", 1752 vhcr->op, slave, vhcr->in_modifier); 1753 vhcr_cmd->status = CMD_STAT_BAD_OP; 1754 goto out_status; 1755 } 1756 1757 /* Allocate outbox */ 1758 if (cmd->has_outbox) { 1759 outbox = mlx4_alloc_cmd_mailbox(dev); 1760 if (IS_ERR(outbox)) { 1761 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1762 outbox = NULL; 1763 goto out_status; 1764 } 1765 } 1766 1767 /* Execute the command! */ 1768 if (cmd->wrapper) { 1769 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox, 1770 cmd); 1771 if (cmd->out_is_imm) 1772 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1773 } else { 1774 in_param = cmd->has_inbox ? (u64) inbox->dma : 1775 vhcr->in_param; 1776 out_param = cmd->has_outbox ? (u64) outbox->dma : 1777 vhcr->out_param; 1778 err = __mlx4_cmd(dev, in_param, &out_param, 1779 cmd->out_is_imm, vhcr->in_modifier, 1780 vhcr->op_modifier, vhcr->op, 1781 MLX4_CMD_TIME_CLASS_A, 1782 MLX4_CMD_NATIVE); 1783 1784 if (cmd->out_is_imm) { 1785 vhcr->out_param = out_param; 1786 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1787 } 1788 } 1789 1790 if (err) { 1791 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1792 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n", 1793 vhcr->op, slave, vhcr->errno, err); 1794 vhcr_cmd->status = mlx4_errno_to_status(err); 1795 goto out_status; 1796 } 1797 1798 1799 /* Write outbox if command completed successfully */ 1800 if (cmd->has_outbox && !vhcr_cmd->status) { 1801 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave, 1802 vhcr->out_param, 1803 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED); 1804 if (ret) { 1805 /* If we failed to write back the outbox after the 1806 *command was successfully executed, we must fail this 1807 * slave, as it is now in undefined state */ 1808 if (!(dev->persist->state & 1809 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1810 mlx4_err(dev, "%s:Failed writing outbox\n", __func__); 1811 goto out; 1812 } 1813 } 1814 1815 out_status: 1816 /* DMA back vhcr result */ 1817 if (!in_vhcr) { 1818 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1819 priv->mfunc.master.slave_state[slave].vhcr_dma, 1820 ALIGN(sizeof(struct mlx4_vhcr), 1821 MLX4_ACCESS_MEM_ALIGN), 1822 MLX4_CMD_WRAPPED); 1823 if (ret) 1824 mlx4_err(dev, "%s:Failed writing vhcr result\n", 1825 __func__); 1826 else if (vhcr->e_bit && 1827 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe)) 1828 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n", 1829 slave); 1830 } 1831 1832 out: 1833 kfree(vhcr); 1834 mlx4_free_cmd_mailbox(dev, inbox); 1835 mlx4_free_cmd_mailbox(dev, outbox); 1836 return ret; 1837 } 1838 1839 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv, 1840 int slave, int port) 1841 { 1842 struct mlx4_vport_oper_state *vp_oper; 1843 struct mlx4_vport_state *vp_admin; 1844 struct mlx4_vf_immed_vlan_work *work; 1845 struct mlx4_dev *dev = &(priv->dev); 1846 int err; 1847 int admin_vlan_ix = NO_INDX; 1848 1849 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 1850 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 1851 1852 if (vp_oper->state.default_vlan == vp_admin->default_vlan && 1853 vp_oper->state.default_qos == vp_admin->default_qos && 1854 vp_oper->state.vlan_proto == vp_admin->vlan_proto && 1855 vp_oper->state.link_state == vp_admin->link_state && 1856 vp_oper->state.qos_vport == vp_admin->qos_vport) 1857 return 0; 1858 1859 if (!(priv->mfunc.master.slave_state[slave].active && 1860 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) { 1861 /* even if the UPDATE_QP command isn't supported, we still want 1862 * to set this VF link according to the admin directive 1863 */ 1864 vp_oper->state.link_state = vp_admin->link_state; 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 %d\n", 1871 vp_admin->default_vlan, vp_admin->default_qos, 1872 vp_admin->link_state); 1873 1874 work = kzalloc(sizeof(*work), GFP_KERNEL); 1875 if (!work) 1876 return -ENOMEM; 1877 1878 if (vp_oper->state.default_vlan != vp_admin->default_vlan) { 1879 if (MLX4_VGT != vp_admin->default_vlan) { 1880 err = __mlx4_register_vlan(&priv->dev, port, 1881 vp_admin->default_vlan, 1882 &admin_vlan_ix); 1883 if (err) { 1884 kfree(work); 1885 mlx4_warn(&priv->dev, 1886 "No vlan resources slave %d, port %d\n", 1887 slave, port); 1888 return err; 1889 } 1890 } else { 1891 admin_vlan_ix = NO_INDX; 1892 } 1893 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN; 1894 mlx4_dbg(&priv->dev, 1895 "alloc vlan %d idx %d slave %d port %d\n", 1896 (int)(vp_admin->default_vlan), 1897 admin_vlan_ix, slave, port); 1898 } 1899 1900 /* save original vlan ix and vlan id */ 1901 work->orig_vlan_id = vp_oper->state.default_vlan; 1902 work->orig_vlan_ix = vp_oper->vlan_idx; 1903 1904 /* handle new qos */ 1905 if (vp_oper->state.default_qos != vp_admin->default_qos) 1906 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS; 1907 1908 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN) 1909 vp_oper->vlan_idx = admin_vlan_ix; 1910 1911 vp_oper->state.default_vlan = vp_admin->default_vlan; 1912 vp_oper->state.default_qos = vp_admin->default_qos; 1913 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 1914 vp_oper->state.link_state = vp_admin->link_state; 1915 vp_oper->state.qos_vport = vp_admin->qos_vport; 1916 1917 if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE) 1918 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE; 1919 1920 /* iterate over QPs owned by this slave, using UPDATE_QP */ 1921 work->port = port; 1922 work->slave = slave; 1923 work->qos = vp_oper->state.default_qos; 1924 work->qos_vport = vp_oper->state.qos_vport; 1925 work->vlan_id = vp_oper->state.default_vlan; 1926 work->vlan_ix = vp_oper->vlan_idx; 1927 work->vlan_proto = vp_oper->state.vlan_proto; 1928 work->priv = priv; 1929 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler); 1930 queue_work(priv->mfunc.master.comm_wq, &work->work); 1931 1932 return 0; 1933 } 1934 1935 static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port) 1936 { 1937 struct mlx4_qos_manager *port_qos_ctl; 1938 struct mlx4_priv *priv = mlx4_priv(dev); 1939 1940 port_qos_ctl = &priv->mfunc.master.qos_ctl[port]; 1941 bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP); 1942 1943 /* Enable only default prio at PF init routine */ 1944 set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm); 1945 } 1946 1947 static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port) 1948 { 1949 int i; 1950 int err; 1951 int num_vfs; 1952 u16 availible_vpp; 1953 u8 vpp_param[MLX4_NUM_UP]; 1954 struct mlx4_qos_manager *port_qos; 1955 struct mlx4_priv *priv = mlx4_priv(dev); 1956 1957 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1958 if (err) { 1959 mlx4_info(dev, "Failed query availible VPPs\n"); 1960 return; 1961 } 1962 1963 port_qos = &priv->mfunc.master.qos_ctl[port]; 1964 num_vfs = (availible_vpp / 1965 bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP)); 1966 1967 for (i = 0; i < MLX4_NUM_UP; i++) { 1968 if (test_bit(i, port_qos->priority_bm)) 1969 vpp_param[i] = num_vfs; 1970 } 1971 1972 err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param); 1973 if (err) { 1974 mlx4_info(dev, "Failed allocating VPPs\n"); 1975 return; 1976 } 1977 1978 /* Query actual allocated VPP, just to make sure */ 1979 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1980 if (err) { 1981 mlx4_info(dev, "Failed query availible VPPs\n"); 1982 return; 1983 } 1984 1985 port_qos->num_of_qos_vfs = num_vfs; 1986 mlx4_dbg(dev, "Port %d Availible VPPs %d\n", port, availible_vpp); 1987 1988 for (i = 0; i < MLX4_NUM_UP; i++) 1989 mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i, 1990 vpp_param[i]); 1991 } 1992 1993 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave) 1994 { 1995 int port, err; 1996 struct mlx4_vport_state *vp_admin; 1997 struct mlx4_vport_oper_state *vp_oper; 1998 struct mlx4_slave_state *slave_state = 1999 &priv->mfunc.master.slave_state[slave]; 2000 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2001 &priv->dev, slave); 2002 int min_port = find_first_bit(actv_ports.ports, 2003 priv->dev.caps.num_ports) + 1; 2004 int max_port = min_port - 1 + 2005 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2006 2007 for (port = min_port; port <= max_port; port++) { 2008 if (!test_bit(port - 1, actv_ports.ports)) 2009 continue; 2010 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2011 priv->mfunc.master.vf_admin[slave].enable_smi[port]; 2012 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2013 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 2014 if (vp_admin->vlan_proto != htons(ETH_P_8021AD) || 2015 slave_state->vst_qinq_supported) { 2016 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 2017 vp_oper->state.default_vlan = vp_admin->default_vlan; 2018 vp_oper->state.default_qos = vp_admin->default_qos; 2019 } 2020 vp_oper->state.link_state = vp_admin->link_state; 2021 vp_oper->state.mac = vp_admin->mac; 2022 vp_oper->state.spoofchk = vp_admin->spoofchk; 2023 vp_oper->state.tx_rate = vp_admin->tx_rate; 2024 vp_oper->state.qos_vport = vp_admin->qos_vport; 2025 vp_oper->state.guid = vp_admin->guid; 2026 2027 if (MLX4_VGT != vp_admin->default_vlan) { 2028 err = __mlx4_register_vlan(&priv->dev, port, 2029 vp_admin->default_vlan, &(vp_oper->vlan_idx)); 2030 if (err) { 2031 vp_oper->vlan_idx = NO_INDX; 2032 vp_oper->state.default_vlan = MLX4_VGT; 2033 vp_oper->state.vlan_proto = htons(ETH_P_8021Q); 2034 mlx4_warn(&priv->dev, 2035 "No vlan resources slave %d, port %d\n", 2036 slave, port); 2037 return err; 2038 } 2039 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", 2040 (int)(vp_oper->state.default_vlan), 2041 vp_oper->vlan_idx, slave, port); 2042 } 2043 if (vp_admin->spoofchk) { 2044 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev, 2045 port, 2046 vp_admin->mac); 2047 if (0 > vp_oper->mac_idx) { 2048 err = vp_oper->mac_idx; 2049 vp_oper->mac_idx = NO_INDX; 2050 mlx4_warn(&priv->dev, 2051 "No mac resources slave %d, port %d\n", 2052 slave, port); 2053 return err; 2054 } 2055 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n", 2056 vp_oper->state.mac, vp_oper->mac_idx, slave, port); 2057 } 2058 } 2059 return 0; 2060 } 2061 2062 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave) 2063 { 2064 int port; 2065 struct mlx4_vport_oper_state *vp_oper; 2066 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2067 &priv->dev, slave); 2068 int min_port = find_first_bit(actv_ports.ports, 2069 priv->dev.caps.num_ports) + 1; 2070 int max_port = min_port - 1 + 2071 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2072 2073 2074 for (port = min_port; port <= max_port; port++) { 2075 if (!test_bit(port - 1, actv_ports.ports)) 2076 continue; 2077 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2078 MLX4_VF_SMI_DISABLED; 2079 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2080 if (NO_INDX != vp_oper->vlan_idx) { 2081 __mlx4_unregister_vlan(&priv->dev, 2082 port, vp_oper->state.default_vlan); 2083 vp_oper->vlan_idx = NO_INDX; 2084 } 2085 if (NO_INDX != vp_oper->mac_idx) { 2086 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); 2087 vp_oper->mac_idx = NO_INDX; 2088 } 2089 } 2090 return; 2091 } 2092 2093 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd, 2094 u16 param, u8 toggle) 2095 { 2096 struct mlx4_priv *priv = mlx4_priv(dev); 2097 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2098 u32 reply; 2099 u8 is_going_down = 0; 2100 int i; 2101 unsigned long flags; 2102 2103 slave_state[slave].comm_toggle ^= 1; 2104 reply = (u32) slave_state[slave].comm_toggle << 31; 2105 if (toggle != slave_state[slave].comm_toggle) { 2106 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n", 2107 toggle, slave); 2108 goto reset_slave; 2109 } 2110 if (cmd == MLX4_COMM_CMD_RESET) { 2111 mlx4_warn(dev, "Received reset from slave:%d\n", slave); 2112 slave_state[slave].active = false; 2113 slave_state[slave].old_vlan_api = false; 2114 slave_state[slave].vst_qinq_supported = false; 2115 mlx4_master_deactivate_admin_state(priv, slave); 2116 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) { 2117 slave_state[slave].event_eq[i].eqn = -1; 2118 slave_state[slave].event_eq[i].token = 0; 2119 } 2120 /*check if we are in the middle of FLR process, 2121 if so return "retry" status to the slave*/ 2122 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) 2123 goto inform_slave_state; 2124 2125 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave); 2126 2127 /* write the version in the event field */ 2128 reply |= mlx4_comm_get_version(); 2129 2130 goto reset_slave; 2131 } 2132 /*command from slave in the middle of FLR*/ 2133 if (cmd != MLX4_COMM_CMD_RESET && 2134 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) { 2135 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n", 2136 slave, cmd); 2137 return; 2138 } 2139 2140 switch (cmd) { 2141 case MLX4_COMM_CMD_VHCR0: 2142 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET) 2143 goto reset_slave; 2144 slave_state[slave].vhcr_dma = ((u64) param) << 48; 2145 priv->mfunc.master.slave_state[slave].cookie = 0; 2146 break; 2147 case MLX4_COMM_CMD_VHCR1: 2148 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0) 2149 goto reset_slave; 2150 slave_state[slave].vhcr_dma |= ((u64) param) << 32; 2151 break; 2152 case MLX4_COMM_CMD_VHCR2: 2153 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1) 2154 goto reset_slave; 2155 slave_state[slave].vhcr_dma |= ((u64) param) << 16; 2156 break; 2157 case MLX4_COMM_CMD_VHCR_EN: 2158 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2) 2159 goto reset_slave; 2160 slave_state[slave].vhcr_dma |= param; 2161 if (mlx4_master_activate_admin_state(priv, slave)) 2162 goto reset_slave; 2163 slave_state[slave].active = true; 2164 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave); 2165 break; 2166 case MLX4_COMM_CMD_VHCR_POST: 2167 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) && 2168 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) { 2169 mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n", 2170 slave, cmd, slave_state[slave].last_cmd); 2171 goto reset_slave; 2172 } 2173 2174 mutex_lock(&priv->cmd.slave_cmd_mutex); 2175 if (mlx4_master_process_vhcr(dev, slave, NULL)) { 2176 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n", 2177 slave); 2178 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2179 goto reset_slave; 2180 } 2181 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2182 break; 2183 default: 2184 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave); 2185 goto reset_slave; 2186 } 2187 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2188 if (!slave_state[slave].is_slave_going_down) 2189 slave_state[slave].last_cmd = cmd; 2190 else 2191 is_going_down = 1; 2192 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2193 if (is_going_down) { 2194 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n", 2195 cmd, slave); 2196 return; 2197 } 2198 __raw_writel((__force u32) cpu_to_be32(reply), 2199 &priv->mfunc.comm[slave].slave_read); 2200 mmiowb(); 2201 2202 return; 2203 2204 reset_slave: 2205 /* cleanup any slave resources */ 2206 if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP) 2207 mlx4_delete_all_resources_for_slave(dev, slave); 2208 2209 if (cmd != MLX4_COMM_CMD_RESET) { 2210 mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n", 2211 slave, cmd); 2212 /* Turn on internal error letting slave reset itself immeditaly, 2213 * otherwise it might take till timeout on command is passed 2214 */ 2215 reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR); 2216 } 2217 2218 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2219 if (!slave_state[slave].is_slave_going_down) 2220 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET; 2221 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2222 /*with slave in the middle of flr, no need to clean resources again.*/ 2223 inform_slave_state: 2224 memset(&slave_state[slave].event_eq, 0, 2225 sizeof(struct mlx4_slave_event_eq_info)); 2226 __raw_writel((__force u32) cpu_to_be32(reply), 2227 &priv->mfunc.comm[slave].slave_read); 2228 wmb(); 2229 } 2230 2231 /* master command processing */ 2232 void mlx4_master_comm_channel(struct work_struct *work) 2233 { 2234 struct mlx4_mfunc_master_ctx *master = 2235 container_of(work, 2236 struct mlx4_mfunc_master_ctx, 2237 comm_work); 2238 struct mlx4_mfunc *mfunc = 2239 container_of(master, struct mlx4_mfunc, master); 2240 struct mlx4_priv *priv = 2241 container_of(mfunc, struct mlx4_priv, mfunc); 2242 struct mlx4_dev *dev = &priv->dev; 2243 __be32 *bit_vec; 2244 u32 comm_cmd; 2245 u32 vec; 2246 int i, j, slave; 2247 int toggle; 2248 int served = 0; 2249 int reported = 0; 2250 u32 slt; 2251 2252 bit_vec = master->comm_arm_bit_vector; 2253 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) { 2254 vec = be32_to_cpu(bit_vec[i]); 2255 for (j = 0; j < 32; j++) { 2256 if (!(vec & (1 << j))) 2257 continue; 2258 ++reported; 2259 slave = (i * 32) + j; 2260 comm_cmd = swab32(readl( 2261 &mfunc->comm[slave].slave_write)); 2262 slt = swab32(readl(&mfunc->comm[slave].slave_read)) 2263 >> 31; 2264 toggle = comm_cmd >> 31; 2265 if (toggle != slt) { 2266 if (master->slave_state[slave].comm_toggle 2267 != slt) { 2268 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n", 2269 slave, slt, 2270 master->slave_state[slave].comm_toggle); 2271 master->slave_state[slave].comm_toggle = 2272 slt; 2273 } 2274 mlx4_master_do_cmd(dev, slave, 2275 comm_cmd >> 16 & 0xff, 2276 comm_cmd & 0xffff, toggle); 2277 ++served; 2278 } 2279 } 2280 } 2281 2282 if (reported && reported != served) 2283 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n", 2284 reported, served); 2285 2286 if (mlx4_ARM_COMM_CHANNEL(dev)) 2287 mlx4_warn(dev, "Failed to arm comm channel events\n"); 2288 } 2289 2290 static int sync_toggles(struct mlx4_dev *dev) 2291 { 2292 struct mlx4_priv *priv = mlx4_priv(dev); 2293 u32 wr_toggle; 2294 u32 rd_toggle; 2295 unsigned long end; 2296 2297 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)); 2298 if (wr_toggle == 0xffffffff) 2299 end = jiffies + msecs_to_jiffies(30000); 2300 else 2301 end = jiffies + msecs_to_jiffies(5000); 2302 2303 while (time_before(jiffies, end)) { 2304 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)); 2305 if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) { 2306 /* PCI might be offline */ 2307 msleep(100); 2308 wr_toggle = swab32(readl(&priv->mfunc.comm-> 2309 slave_write)); 2310 continue; 2311 } 2312 2313 if (rd_toggle >> 31 == wr_toggle >> 31) { 2314 priv->cmd.comm_toggle = rd_toggle >> 31; 2315 return 0; 2316 } 2317 2318 cond_resched(); 2319 } 2320 2321 /* 2322 * we could reach here if for example the previous VM using this 2323 * function misbehaved and left the channel with unsynced state. We 2324 * should fix this here and give this VM a chance to use a properly 2325 * synced channel 2326 */ 2327 mlx4_warn(dev, "recovering from previously mis-behaved VM\n"); 2328 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read); 2329 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write); 2330 priv->cmd.comm_toggle = 0; 2331 2332 return 0; 2333 } 2334 2335 int mlx4_multi_func_init(struct mlx4_dev *dev) 2336 { 2337 struct mlx4_priv *priv = mlx4_priv(dev); 2338 struct mlx4_slave_state *s_state; 2339 int i, j, err, port; 2340 2341 if (mlx4_is_master(dev)) 2342 priv->mfunc.comm = 2343 ioremap(pci_resource_start(dev->persist->pdev, 2344 priv->fw.comm_bar) + 2345 priv->fw.comm_base, MLX4_COMM_PAGESIZE); 2346 else 2347 priv->mfunc.comm = 2348 ioremap(pci_resource_start(dev->persist->pdev, 2) + 2349 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE); 2350 if (!priv->mfunc.comm) { 2351 mlx4_err(dev, "Couldn't map communication vector\n"); 2352 goto err_vhcr; 2353 } 2354 2355 if (mlx4_is_master(dev)) { 2356 struct mlx4_vf_oper_state *vf_oper; 2357 struct mlx4_vf_admin_state *vf_admin; 2358 2359 priv->mfunc.master.slave_state = 2360 kzalloc(dev->num_slaves * 2361 sizeof(struct mlx4_slave_state), GFP_KERNEL); 2362 if (!priv->mfunc.master.slave_state) 2363 goto err_comm; 2364 2365 priv->mfunc.master.vf_admin = 2366 kzalloc(dev->num_slaves * 2367 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL); 2368 if (!priv->mfunc.master.vf_admin) 2369 goto err_comm_admin; 2370 2371 priv->mfunc.master.vf_oper = 2372 kzalloc(dev->num_slaves * 2373 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL); 2374 if (!priv->mfunc.master.vf_oper) 2375 goto err_comm_oper; 2376 2377 for (i = 0; i < dev->num_slaves; ++i) { 2378 vf_admin = &priv->mfunc.master.vf_admin[i]; 2379 vf_oper = &priv->mfunc.master.vf_oper[i]; 2380 s_state = &priv->mfunc.master.slave_state[i]; 2381 s_state->last_cmd = MLX4_COMM_CMD_RESET; 2382 s_state->vst_qinq_supported = false; 2383 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]); 2384 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j) 2385 s_state->event_eq[j].eqn = -1; 2386 __raw_writel((__force u32) 0, 2387 &priv->mfunc.comm[i].slave_write); 2388 __raw_writel((__force u32) 0, 2389 &priv->mfunc.comm[i].slave_read); 2390 mmiowb(); 2391 for (port = 1; port <= MLX4_MAX_PORTS; port++) { 2392 struct mlx4_vport_state *admin_vport; 2393 struct mlx4_vport_state *oper_vport; 2394 2395 s_state->vlan_filter[port] = 2396 kzalloc(sizeof(struct mlx4_vlan_fltr), 2397 GFP_KERNEL); 2398 if (!s_state->vlan_filter[port]) { 2399 if (--port) 2400 kfree(s_state->vlan_filter[port]); 2401 goto err_slaves; 2402 } 2403 2404 admin_vport = &vf_admin->vport[port]; 2405 oper_vport = &vf_oper->vport[port].state; 2406 INIT_LIST_HEAD(&s_state->mcast_filters[port]); 2407 admin_vport->default_vlan = MLX4_VGT; 2408 oper_vport->default_vlan = MLX4_VGT; 2409 admin_vport->qos_vport = 2410 MLX4_VPP_DEFAULT_VPORT; 2411 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; 2412 admin_vport->vlan_proto = htons(ETH_P_8021Q); 2413 oper_vport->vlan_proto = htons(ETH_P_8021Q); 2414 vf_oper->vport[port].vlan_idx = NO_INDX; 2415 vf_oper->vport[port].mac_idx = NO_INDX; 2416 mlx4_set_random_admin_guid(dev, i, port); 2417 } 2418 spin_lock_init(&s_state->lock); 2419 } 2420 2421 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) { 2422 for (port = 1; port <= dev->caps.num_ports; port++) { 2423 if (mlx4_is_eth(dev, port)) { 2424 mlx4_set_default_port_qos(dev, port); 2425 mlx4_allocate_port_vpps(dev, port); 2426 } 2427 } 2428 } 2429 2430 memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe)); 2431 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD; 2432 INIT_WORK(&priv->mfunc.master.comm_work, 2433 mlx4_master_comm_channel); 2434 INIT_WORK(&priv->mfunc.master.slave_event_work, 2435 mlx4_gen_slave_eqe); 2436 INIT_WORK(&priv->mfunc.master.slave_flr_event_work, 2437 mlx4_master_handle_slave_flr); 2438 spin_lock_init(&priv->mfunc.master.slave_state_lock); 2439 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock); 2440 priv->mfunc.master.comm_wq = 2441 create_singlethread_workqueue("mlx4_comm"); 2442 if (!priv->mfunc.master.comm_wq) 2443 goto err_slaves; 2444 2445 if (mlx4_init_resource_tracker(dev)) 2446 goto err_thread; 2447 2448 } else { 2449 err = sync_toggles(dev); 2450 if (err) { 2451 mlx4_err(dev, "Couldn't sync toggles\n"); 2452 goto err_comm; 2453 } 2454 } 2455 return 0; 2456 2457 err_thread: 2458 flush_workqueue(priv->mfunc.master.comm_wq); 2459 destroy_workqueue(priv->mfunc.master.comm_wq); 2460 err_slaves: 2461 while (i--) { 2462 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2463 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2464 } 2465 kfree(priv->mfunc.master.vf_oper); 2466 err_comm_oper: 2467 kfree(priv->mfunc.master.vf_admin); 2468 err_comm_admin: 2469 kfree(priv->mfunc.master.slave_state); 2470 err_comm: 2471 iounmap(priv->mfunc.comm); 2472 priv->mfunc.comm = NULL; 2473 err_vhcr: 2474 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2475 priv->mfunc.vhcr, 2476 priv->mfunc.vhcr_dma); 2477 priv->mfunc.vhcr = NULL; 2478 return -ENOMEM; 2479 } 2480 2481 int mlx4_cmd_init(struct mlx4_dev *dev) 2482 { 2483 struct mlx4_priv *priv = mlx4_priv(dev); 2484 int flags = 0; 2485 2486 if (!priv->cmd.initialized) { 2487 init_rwsem(&priv->cmd.switch_sem); 2488 mutex_init(&priv->cmd.slave_cmd_mutex); 2489 sema_init(&priv->cmd.poll_sem, 1); 2490 priv->cmd.use_events = 0; 2491 priv->cmd.toggle = 1; 2492 priv->cmd.initialized = 1; 2493 flags |= MLX4_CMD_CLEANUP_STRUCT; 2494 } 2495 2496 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) { 2497 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev, 2498 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE); 2499 if (!priv->cmd.hcr) { 2500 mlx4_err(dev, "Couldn't map command register\n"); 2501 goto err; 2502 } 2503 flags |= MLX4_CMD_CLEANUP_HCR; 2504 } 2505 2506 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) { 2507 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev, 2508 PAGE_SIZE, 2509 &priv->mfunc.vhcr_dma, 2510 GFP_KERNEL); 2511 if (!priv->mfunc.vhcr) 2512 goto err; 2513 2514 flags |= MLX4_CMD_CLEANUP_VHCR; 2515 } 2516 2517 if (!priv->cmd.pool) { 2518 priv->cmd.pool = pci_pool_create("mlx4_cmd", 2519 dev->persist->pdev, 2520 MLX4_MAILBOX_SIZE, 2521 MLX4_MAILBOX_SIZE, 0); 2522 if (!priv->cmd.pool) 2523 goto err; 2524 2525 flags |= MLX4_CMD_CLEANUP_POOL; 2526 } 2527 2528 return 0; 2529 2530 err: 2531 mlx4_cmd_cleanup(dev, flags); 2532 return -ENOMEM; 2533 } 2534 2535 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev) 2536 { 2537 struct mlx4_priv *priv = mlx4_priv(dev); 2538 int slave; 2539 u32 slave_read; 2540 2541 /* If the comm channel has not yet been initialized, 2542 * skip reporting the internal error event to all 2543 * the communication channels. 2544 */ 2545 if (!priv->mfunc.comm) 2546 return; 2547 2548 /* Report an internal error event to all 2549 * communication channels. 2550 */ 2551 for (slave = 0; slave < dev->num_slaves; slave++) { 2552 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read)); 2553 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR; 2554 __raw_writel((__force u32)cpu_to_be32(slave_read), 2555 &priv->mfunc.comm[slave].slave_read); 2556 /* Make sure that our comm channel write doesn't 2557 * get mixed in with writes from another CPU. 2558 */ 2559 mmiowb(); 2560 } 2561 } 2562 2563 void mlx4_multi_func_cleanup(struct mlx4_dev *dev) 2564 { 2565 struct mlx4_priv *priv = mlx4_priv(dev); 2566 int i, port; 2567 2568 if (mlx4_is_master(dev)) { 2569 flush_workqueue(priv->mfunc.master.comm_wq); 2570 destroy_workqueue(priv->mfunc.master.comm_wq); 2571 for (i = 0; i < dev->num_slaves; i++) { 2572 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2573 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2574 } 2575 kfree(priv->mfunc.master.slave_state); 2576 kfree(priv->mfunc.master.vf_admin); 2577 kfree(priv->mfunc.master.vf_oper); 2578 dev->num_slaves = 0; 2579 } 2580 2581 iounmap(priv->mfunc.comm); 2582 priv->mfunc.comm = NULL; 2583 } 2584 2585 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask) 2586 { 2587 struct mlx4_priv *priv = mlx4_priv(dev); 2588 2589 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) { 2590 pci_pool_destroy(priv->cmd.pool); 2591 priv->cmd.pool = NULL; 2592 } 2593 2594 if (!mlx4_is_slave(dev) && priv->cmd.hcr && 2595 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) { 2596 iounmap(priv->cmd.hcr); 2597 priv->cmd.hcr = NULL; 2598 } 2599 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr && 2600 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) { 2601 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2602 priv->mfunc.vhcr, priv->mfunc.vhcr_dma); 2603 priv->mfunc.vhcr = NULL; 2604 } 2605 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT)) 2606 priv->cmd.initialized = 0; 2607 } 2608 2609 /* 2610 * Switch to using events to issue FW commands (can only be called 2611 * after event queue for command events has been initialized). 2612 */ 2613 int mlx4_cmd_use_events(struct mlx4_dev *dev) 2614 { 2615 struct mlx4_priv *priv = mlx4_priv(dev); 2616 int i; 2617 int err = 0; 2618 2619 priv->cmd.context = kmalloc(priv->cmd.max_cmds * 2620 sizeof (struct mlx4_cmd_context), 2621 GFP_KERNEL); 2622 if (!priv->cmd.context) 2623 return -ENOMEM; 2624 2625 down_write(&priv->cmd.switch_sem); 2626 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2627 priv->cmd.context[i].token = i; 2628 priv->cmd.context[i].next = i + 1; 2629 /* To support fatal error flow, initialize all 2630 * cmd contexts to allow simulating completions 2631 * with complete() at any time. 2632 */ 2633 init_completion(&priv->cmd.context[i].done); 2634 } 2635 2636 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1; 2637 priv->cmd.free_head = 0; 2638 2639 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds); 2640 2641 for (priv->cmd.token_mask = 1; 2642 priv->cmd.token_mask < priv->cmd.max_cmds; 2643 priv->cmd.token_mask <<= 1) 2644 ; /* nothing */ 2645 --priv->cmd.token_mask; 2646 2647 down(&priv->cmd.poll_sem); 2648 priv->cmd.use_events = 1; 2649 up_write(&priv->cmd.switch_sem); 2650 2651 return err; 2652 } 2653 2654 /* 2655 * Switch back to polling (used when shutting down the device) 2656 */ 2657 void mlx4_cmd_use_polling(struct mlx4_dev *dev) 2658 { 2659 struct mlx4_priv *priv = mlx4_priv(dev); 2660 int i; 2661 2662 down_write(&priv->cmd.switch_sem); 2663 priv->cmd.use_events = 0; 2664 2665 for (i = 0; i < priv->cmd.max_cmds; ++i) 2666 down(&priv->cmd.event_sem); 2667 2668 kfree(priv->cmd.context); 2669 2670 up(&priv->cmd.poll_sem); 2671 up_write(&priv->cmd.switch_sem); 2672 } 2673 2674 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) 2675 { 2676 struct mlx4_cmd_mailbox *mailbox; 2677 2678 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL); 2679 if (!mailbox) 2680 return ERR_PTR(-ENOMEM); 2681 2682 mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL, 2683 &mailbox->dma); 2684 if (!mailbox->buf) { 2685 kfree(mailbox); 2686 return ERR_PTR(-ENOMEM); 2687 } 2688 2689 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE); 2690 2691 return mailbox; 2692 } 2693 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox); 2694 2695 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, 2696 struct mlx4_cmd_mailbox *mailbox) 2697 { 2698 if (!mailbox) 2699 return; 2700 2701 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma); 2702 kfree(mailbox); 2703 } 2704 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox); 2705 2706 u32 mlx4_comm_get_version(void) 2707 { 2708 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER; 2709 } 2710 2711 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf) 2712 { 2713 if ((vf < 0) || (vf >= dev->persist->num_vfs)) { 2714 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", 2715 vf, dev->persist->num_vfs); 2716 return -EINVAL; 2717 } 2718 2719 return vf+1; 2720 } 2721 2722 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave) 2723 { 2724 if (slave < 1 || slave > dev->persist->num_vfs) { 2725 mlx4_err(dev, 2726 "Bad slave number:%d (number of activated slaves: %lu)\n", 2727 slave, dev->num_slaves); 2728 return -EINVAL; 2729 } 2730 return slave - 1; 2731 } 2732 2733 void mlx4_cmd_wake_completions(struct mlx4_dev *dev) 2734 { 2735 struct mlx4_priv *priv = mlx4_priv(dev); 2736 struct mlx4_cmd_context *context; 2737 int i; 2738 2739 spin_lock(&priv->cmd.context_lock); 2740 if (priv->cmd.context) { 2741 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2742 context = &priv->cmd.context[i]; 2743 context->fw_status = CMD_STAT_INTERNAL_ERR; 2744 context->result = 2745 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 2746 complete(&context->done); 2747 } 2748 } 2749 spin_unlock(&priv->cmd.context_lock); 2750 } 2751 2752 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave) 2753 { 2754 struct mlx4_active_ports actv_ports; 2755 int vf; 2756 2757 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS); 2758 2759 if (slave == 0) { 2760 bitmap_fill(actv_ports.ports, dev->caps.num_ports); 2761 return actv_ports; 2762 } 2763 2764 vf = mlx4_get_vf_indx(dev, slave); 2765 if (vf < 0) 2766 return actv_ports; 2767 2768 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1, 2769 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports, 2770 dev->caps.num_ports)); 2771 2772 return actv_ports; 2773 } 2774 EXPORT_SYMBOL_GPL(mlx4_get_active_ports); 2775 2776 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port) 2777 { 2778 unsigned n; 2779 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2780 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2781 2782 if (port <= 0 || port > m) 2783 return -EINVAL; 2784 2785 n = find_first_bit(actv_ports.ports, dev->caps.num_ports); 2786 if (port <= n) 2787 port = n + 1; 2788 2789 return port; 2790 } 2791 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port); 2792 2793 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port) 2794 { 2795 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2796 if (test_bit(port - 1, actv_ports.ports)) 2797 return port - 2798 find_first_bit(actv_ports.ports, dev->caps.num_ports); 2799 2800 return -1; 2801 } 2802 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port); 2803 2804 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev, 2805 int port) 2806 { 2807 unsigned i; 2808 struct mlx4_slaves_pport slaves_pport; 2809 2810 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2811 2812 if (port <= 0 || port > dev->caps.num_ports) 2813 return slaves_pport; 2814 2815 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2816 struct mlx4_active_ports actv_ports = 2817 mlx4_get_active_ports(dev, i); 2818 if (test_bit(port - 1, actv_ports.ports)) 2819 set_bit(i, slaves_pport.slaves); 2820 } 2821 2822 return slaves_pport; 2823 } 2824 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport); 2825 2826 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( 2827 struct mlx4_dev *dev, 2828 const struct mlx4_active_ports *crit_ports) 2829 { 2830 unsigned i; 2831 struct mlx4_slaves_pport slaves_pport; 2832 2833 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2834 2835 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2836 struct mlx4_active_ports actv_ports = 2837 mlx4_get_active_ports(dev, i); 2838 if (bitmap_equal(crit_ports->ports, actv_ports.ports, 2839 dev->caps.num_ports)) 2840 set_bit(i, slaves_pport.slaves); 2841 } 2842 2843 return slaves_pport; 2844 } 2845 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); 2846 2847 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) 2848 { 2849 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2850 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) 2851 + 1; 2852 int max_port = min_port + 2853 bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2854 2855 if (port < min_port) 2856 port = min_port; 2857 else if (port >= max_port) 2858 port = max_port - 1; 2859 2860 return port; 2861 } 2862 2863 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port, 2864 int max_tx_rate) 2865 { 2866 int i; 2867 int err; 2868 struct mlx4_qos_manager *port_qos; 2869 struct mlx4_dev *dev = &priv->dev; 2870 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP]; 2871 2872 port_qos = &priv->mfunc.master.qos_ctl[port]; 2873 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP); 2874 2875 if (slave > port_qos->num_of_qos_vfs) { 2876 mlx4_info(dev, "No availible VPP resources for this VF\n"); 2877 return -EINVAL; 2878 } 2879 2880 /* Query for default QoS values from Vport 0 is needed */ 2881 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos); 2882 if (err) { 2883 mlx4_info(dev, "Failed to query Vport 0 QoS values\n"); 2884 return err; 2885 } 2886 2887 for (i = 0; i < MLX4_NUM_UP; i++) { 2888 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) { 2889 vpp_qos[i].max_avg_bw = max_tx_rate; 2890 vpp_qos[i].enable = 1; 2891 } else { 2892 /* if user supplied tx_rate == 0, meaning no rate limit 2893 * configuration is required. so we are leaving the 2894 * value of max_avg_bw as queried from Vport 0. 2895 */ 2896 vpp_qos[i].enable = 0; 2897 } 2898 } 2899 2900 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos); 2901 if (err) { 2902 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave); 2903 return err; 2904 } 2905 2906 return 0; 2907 } 2908 2909 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port, 2910 struct mlx4_vport_state *vf_admin) 2911 { 2912 struct mlx4_qos_manager *info; 2913 struct mlx4_priv *priv = mlx4_priv(dev); 2914 2915 if (!mlx4_is_master(dev) || 2916 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 2917 return false; 2918 2919 info = &priv->mfunc.master.qos_ctl[port]; 2920 2921 if (vf_admin->default_vlan != MLX4_VGT && 2922 test_bit(vf_admin->default_qos, info->priority_bm)) 2923 return true; 2924 2925 return false; 2926 } 2927 2928 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, 2929 struct mlx4_vport_state *vf_admin, 2930 int vlan, int qos) 2931 { 2932 struct mlx4_vport_state dummy_admin = {0}; 2933 2934 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) || 2935 !vf_admin->tx_rate) 2936 return true; 2937 2938 dummy_admin.default_qos = qos; 2939 dummy_admin.default_vlan = vlan; 2940 2941 /* VF wants to move to other VST state which is valid with current 2942 * rate limit. Either differnt default vlan in VST or other 2943 * supported QoS priority. Otherwise we don't allow this change when 2944 * the TX rate is still configured. 2945 */ 2946 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin)) 2947 return true; 2948 2949 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n", 2950 (vlan == MLX4_VGT) ? "VGT" : "VST"); 2951 2952 if (vlan != MLX4_VGT) 2953 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos); 2954 2955 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n"); 2956 2957 return false; 2958 } 2959 2960 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) 2961 { 2962 struct mlx4_priv *priv = mlx4_priv(dev); 2963 struct mlx4_vport_state *s_info; 2964 int slave; 2965 2966 if (!mlx4_is_master(dev)) 2967 return -EPROTONOSUPPORT; 2968 2969 slave = mlx4_get_slave_indx(dev, vf); 2970 if (slave < 0) 2971 return -EINVAL; 2972 2973 port = mlx4_slaves_closest_port(dev, slave, port); 2974 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 2975 s_info->mac = mac; 2976 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n", 2977 vf, port, s_info->mac); 2978 return 0; 2979 } 2980 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac); 2981 2982 2983 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos, 2984 __be16 proto) 2985 { 2986 struct mlx4_priv *priv = mlx4_priv(dev); 2987 struct mlx4_vport_state *vf_admin; 2988 struct mlx4_slave_state *slave_state; 2989 struct mlx4_vport_oper_state *vf_oper; 2990 int slave; 2991 2992 if ((!mlx4_is_master(dev)) || 2993 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL)) 2994 return -EPROTONOSUPPORT; 2995 2996 if ((vlan > 4095) || (qos > 7)) 2997 return -EINVAL; 2998 2999 if (proto == htons(ETH_P_8021AD) && 3000 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP)) 3001 return -EPROTONOSUPPORT; 3002 3003 if (proto != htons(ETH_P_8021Q) && 3004 proto != htons(ETH_P_8021AD)) 3005 return -EINVAL; 3006 3007 if ((proto == htons(ETH_P_8021AD)) && 3008 ((vlan == 0) || (vlan == MLX4_VGT))) 3009 return -EINVAL; 3010 3011 slave = mlx4_get_slave_indx(dev, vf); 3012 if (slave < 0) 3013 return -EINVAL; 3014 3015 slave_state = &priv->mfunc.master.slave_state[slave]; 3016 if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) && 3017 (!slave_state->vst_qinq_supported)) { 3018 mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf); 3019 return -EPROTONOSUPPORT; 3020 } 3021 port = mlx4_slaves_closest_port(dev, slave, port); 3022 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3023 vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3024 3025 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos)) 3026 return -EPERM; 3027 3028 if ((0 == vlan) && (0 == qos)) 3029 vf_admin->default_vlan = MLX4_VGT; 3030 else 3031 vf_admin->default_vlan = vlan; 3032 vf_admin->default_qos = qos; 3033 vf_admin->vlan_proto = proto; 3034 3035 /* If rate was configured prior to VST, we saved the configured rate 3036 * in vf_admin->rate and now, if priority supported we enforce the QoS 3037 */ 3038 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) && 3039 vf_admin->tx_rate) 3040 vf_admin->qos_vport = slave; 3041 3042 /* Try to activate new vf state without restart, 3043 * this option is not supported while moving to VST QinQ mode. 3044 */ 3045 if ((proto == htons(ETH_P_8021AD) && 3046 vf_oper->state.vlan_proto != proto) || 3047 mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3048 mlx4_info(dev, 3049 "updating vf %d port %d config will take effect on next VF restart\n", 3050 vf, port); 3051 return 0; 3052 } 3053 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan); 3054 3055 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate, 3056 int max_tx_rate) 3057 { 3058 int err; 3059 int slave; 3060 struct mlx4_vport_state *vf_admin; 3061 struct mlx4_priv *priv = mlx4_priv(dev); 3062 3063 if (!mlx4_is_master(dev) || 3064 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 3065 return -EPROTONOSUPPORT; 3066 3067 if (min_tx_rate) { 3068 mlx4_info(dev, "Minimum BW share not supported\n"); 3069 return -EPROTONOSUPPORT; 3070 } 3071 3072 slave = mlx4_get_slave_indx(dev, vf); 3073 if (slave < 0) 3074 return -EINVAL; 3075 3076 port = mlx4_slaves_closest_port(dev, slave, port); 3077 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3078 3079 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate); 3080 if (err) { 3081 mlx4_info(dev, "vf %d failed to set rate %d\n", vf, 3082 max_tx_rate); 3083 return err; 3084 } 3085 3086 vf_admin->tx_rate = max_tx_rate; 3087 /* if VF is not in supported mode (VST with supported prio), 3088 * we do not change vport configuration for its QPs, but save 3089 * the rate, so it will be enforced when it moves to supported 3090 * mode next time. 3091 */ 3092 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) { 3093 mlx4_info(dev, 3094 "rate set for VF %d when not in valid state\n", vf); 3095 3096 if (vf_admin->default_vlan != MLX4_VGT) 3097 mlx4_info(dev, "VST priority not supported by QoS\n"); 3098 else 3099 mlx4_info(dev, "VF in VGT mode (needed VST)\n"); 3100 3101 mlx4_info(dev, 3102 "rate %d take affect when VF moves to valid state\n", 3103 max_tx_rate); 3104 return 0; 3105 } 3106 3107 /* If user sets rate 0 assigning default vport for its QPs */ 3108 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT; 3109 3110 if (priv->mfunc.master.slave_state[slave].active && 3111 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) 3112 mlx4_master_immediate_activate_vlan_qos(priv, slave, port); 3113 3114 return 0; 3115 } 3116 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate); 3117 3118 /* mlx4_get_slave_default_vlan - 3119 * return true if VST ( default vlan) 3120 * if VST, will return vlan & qos (if not NULL) 3121 */ 3122 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, 3123 u16 *vlan, u8 *qos) 3124 { 3125 struct mlx4_vport_oper_state *vp_oper; 3126 struct mlx4_priv *priv; 3127 3128 priv = mlx4_priv(dev); 3129 port = mlx4_slaves_closest_port(dev, slave, port); 3130 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3131 3132 if (MLX4_VGT != vp_oper->state.default_vlan) { 3133 if (vlan) 3134 *vlan = vp_oper->state.default_vlan; 3135 if (qos) 3136 *qos = vp_oper->state.default_qos; 3137 return true; 3138 } 3139 return false; 3140 } 3141 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan); 3142 3143 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 3144 { 3145 struct mlx4_priv *priv = mlx4_priv(dev); 3146 struct mlx4_vport_state *s_info; 3147 int slave; 3148 3149 if ((!mlx4_is_master(dev)) || 3150 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM)) 3151 return -EPROTONOSUPPORT; 3152 3153 slave = mlx4_get_slave_indx(dev, vf); 3154 if (slave < 0) 3155 return -EINVAL; 3156 3157 port = mlx4_slaves_closest_port(dev, slave, port); 3158 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3159 s_info->spoofchk = setting; 3160 3161 return 0; 3162 } 3163 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk); 3164 3165 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf) 3166 { 3167 struct mlx4_priv *priv = mlx4_priv(dev); 3168 struct mlx4_vport_state *s_info; 3169 int slave; 3170 3171 if (!mlx4_is_master(dev)) 3172 return -EPROTONOSUPPORT; 3173 3174 slave = mlx4_get_slave_indx(dev, vf); 3175 if (slave < 0) 3176 return -EINVAL; 3177 3178 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3179 ivf->vf = vf; 3180 3181 /* need to convert it to a func */ 3182 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff); 3183 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff); 3184 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff); 3185 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff); 3186 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff); 3187 ivf->mac[5] = ((s_info->mac) & 0xff); 3188 3189 ivf->vlan = s_info->default_vlan; 3190 ivf->qos = s_info->default_qos; 3191 ivf->vlan_proto = s_info->vlan_proto; 3192 3193 if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info)) 3194 ivf->max_tx_rate = s_info->tx_rate; 3195 else 3196 ivf->max_tx_rate = 0; 3197 3198 ivf->min_tx_rate = 0; 3199 ivf->spoofchk = s_info->spoofchk; 3200 ivf->linkstate = s_info->link_state; 3201 3202 return 0; 3203 } 3204 EXPORT_SYMBOL_GPL(mlx4_get_vf_config); 3205 3206 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state) 3207 { 3208 struct mlx4_priv *priv = mlx4_priv(dev); 3209 struct mlx4_vport_state *s_info; 3210 int slave; 3211 u8 link_stat_event; 3212 3213 slave = mlx4_get_slave_indx(dev, vf); 3214 if (slave < 0) 3215 return -EINVAL; 3216 3217 port = mlx4_slaves_closest_port(dev, slave, port); 3218 switch (link_state) { 3219 case IFLA_VF_LINK_STATE_AUTO: 3220 /* get current link state */ 3221 if (!priv->sense.do_sense_port[port]) 3222 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3223 else 3224 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3225 break; 3226 3227 case IFLA_VF_LINK_STATE_ENABLE: 3228 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3229 break; 3230 3231 case IFLA_VF_LINK_STATE_DISABLE: 3232 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3233 break; 3234 3235 default: 3236 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n", 3237 link_state, slave, port); 3238 return -EINVAL; 3239 }; 3240 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3241 s_info->link_state = link_state; 3242 3243 /* send event */ 3244 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event); 3245 3246 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3247 mlx4_dbg(dev, 3248 "updating vf %d port %d no link state HW enforcment\n", 3249 vf, port); 3250 return 0; 3251 } 3252 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state); 3253 3254 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, 3255 struct mlx4_counter *counter_stats, int reset) 3256 { 3257 struct mlx4_cmd_mailbox *mailbox = NULL; 3258 struct mlx4_counter *tmp_counter; 3259 int err; 3260 u32 if_stat_in_mod; 3261 3262 if (!counter_stats) 3263 return -EINVAL; 3264 3265 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) 3266 return 0; 3267 3268 mailbox = mlx4_alloc_cmd_mailbox(dev); 3269 if (IS_ERR(mailbox)) 3270 return PTR_ERR(mailbox); 3271 3272 memset(mailbox->buf, 0, sizeof(struct mlx4_counter)); 3273 if_stat_in_mod = counter_index; 3274 if (reset) 3275 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET; 3276 err = mlx4_cmd_box(dev, 0, mailbox->dma, 3277 if_stat_in_mod, 0, 3278 MLX4_CMD_QUERY_IF_STAT, 3279 MLX4_CMD_TIME_CLASS_C, 3280 MLX4_CMD_NATIVE); 3281 if (err) { 3282 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n", 3283 __func__, counter_index); 3284 goto if_stat_out; 3285 } 3286 tmp_counter = (struct mlx4_counter *)mailbox->buf; 3287 counter_stats->counter_mode = tmp_counter->counter_mode; 3288 if (counter_stats->counter_mode == 0) { 3289 counter_stats->rx_frames = 3290 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) + 3291 be64_to_cpu(tmp_counter->rx_frames)); 3292 counter_stats->tx_frames = 3293 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) + 3294 be64_to_cpu(tmp_counter->tx_frames)); 3295 counter_stats->rx_bytes = 3296 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) + 3297 be64_to_cpu(tmp_counter->rx_bytes)); 3298 counter_stats->tx_bytes = 3299 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) + 3300 be64_to_cpu(tmp_counter->tx_bytes)); 3301 } 3302 3303 if_stat_out: 3304 mlx4_free_cmd_mailbox(dev, mailbox); 3305 3306 return err; 3307 } 3308 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); 3309 3310 int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, 3311 struct ifla_vf_stats *vf_stats) 3312 { 3313 struct mlx4_counter tmp_vf_stats; 3314 int slave; 3315 int err = 0; 3316 3317 if (!vf_stats) 3318 return -EINVAL; 3319 3320 if (!mlx4_is_master(dev)) 3321 return -EPROTONOSUPPORT; 3322 3323 slave = mlx4_get_slave_indx(dev, vf_idx); 3324 if (slave < 0) 3325 return -EINVAL; 3326 3327 port = mlx4_slaves_closest_port(dev, slave, port); 3328 err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats); 3329 if (!err && tmp_vf_stats.counter_mode == 0) { 3330 vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames); 3331 vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames); 3332 vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes); 3333 vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes); 3334 } 3335 3336 return err; 3337 } 3338 EXPORT_SYMBOL_GPL(mlx4_get_vf_stats); 3339 3340 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) 3341 { 3342 struct mlx4_priv *priv = mlx4_priv(dev); 3343 3344 if (slave < 1 || slave >= dev->num_slaves || 3345 port < 1 || port > MLX4_MAX_PORTS) 3346 return 0; 3347 3348 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] == 3349 MLX4_VF_SMI_ENABLED; 3350 } 3351 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled); 3352 3353 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port) 3354 { 3355 struct mlx4_priv *priv = mlx4_priv(dev); 3356 3357 if (slave == mlx4_master_func_num(dev)) 3358 return 1; 3359 3360 if (slave < 1 || slave >= dev->num_slaves || 3361 port < 1 || port > MLX4_MAX_PORTS) 3362 return 0; 3363 3364 return priv->mfunc.master.vf_admin[slave].enable_smi[port] == 3365 MLX4_VF_SMI_ENABLED; 3366 } 3367 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin); 3368 3369 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port, 3370 int enabled) 3371 { 3372 struct mlx4_priv *priv = mlx4_priv(dev); 3373 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 3374 &priv->dev, slave); 3375 int min_port = find_first_bit(actv_ports.ports, 3376 priv->dev.caps.num_ports) + 1; 3377 int max_port = min_port - 1 + 3378 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 3379 3380 if (slave == mlx4_master_func_num(dev)) 3381 return 0; 3382 3383 if (slave < 1 || slave >= dev->num_slaves || 3384 port < 1 || port > MLX4_MAX_PORTS || 3385 enabled < 0 || enabled > 1) 3386 return -EINVAL; 3387 3388 if (min_port == max_port && dev->caps.num_ports > 1) { 3389 mlx4_info(dev, "SMI access disallowed for single ported VFs\n"); 3390 return -EPROTONOSUPPORT; 3391 } 3392 3393 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled; 3394 return 0; 3395 } 3396 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin); 3397