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 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 789 return mlx4_internal_err_ret_value(dev, op, 790 op_modifier); 791 if (mlx4_priv(dev)->cmd.use_events) 792 return mlx4_cmd_wait(dev, in_param, out_param, 793 out_is_imm, in_modifier, 794 op_modifier, op, timeout); 795 else 796 return mlx4_cmd_poll(dev, in_param, out_param, 797 out_is_imm, in_modifier, 798 op_modifier, op, timeout); 799 } 800 return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm, 801 in_modifier, op_modifier, op, timeout); 802 } 803 EXPORT_SYMBOL_GPL(__mlx4_cmd); 804 805 806 int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev) 807 { 808 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL, 809 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); 810 } 811 812 static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr, 813 int slave, u64 slave_addr, 814 int size, int is_read) 815 { 816 u64 in_param; 817 u64 out_param; 818 819 if ((slave_addr & 0xfff) | (master_addr & 0xfff) | 820 (slave & ~0x7f) | (size & 0xff)) { 821 mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx master_addr:0x%llx slave_id:%d size:%d\n", 822 slave_addr, master_addr, slave, size); 823 return -EINVAL; 824 } 825 826 if (is_read) { 827 in_param = (u64) slave | slave_addr; 828 out_param = (u64) dev->caps.function | master_addr; 829 } else { 830 in_param = (u64) dev->caps.function | master_addr; 831 out_param = (u64) slave | slave_addr; 832 } 833 834 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0, 835 MLX4_CMD_ACCESS_MEM, 836 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 837 } 838 839 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey, 840 struct mlx4_cmd_mailbox *inbox, 841 struct mlx4_cmd_mailbox *outbox) 842 { 843 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf); 844 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf); 845 int err; 846 int i; 847 848 if (index & 0x1f) 849 return -EINVAL; 850 851 in_mad->attr_mod = cpu_to_be32(index / 32); 852 853 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, 854 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, 855 MLX4_CMD_NATIVE); 856 if (err) 857 return err; 858 859 for (i = 0; i < 32; ++i) 860 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]); 861 862 return err; 863 } 864 865 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table, 866 struct mlx4_cmd_mailbox *inbox, 867 struct mlx4_cmd_mailbox *outbox) 868 { 869 int i; 870 int err; 871 872 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) { 873 err = query_pkey_block(dev, port, i, table + i, inbox, outbox); 874 if (err) 875 return err; 876 } 877 878 return 0; 879 } 880 #define PORT_CAPABILITY_LOCATION_IN_SMP 20 881 #define PORT_STATE_OFFSET 32 882 883 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf) 884 { 885 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP) 886 return IB_PORT_ACTIVE; 887 else 888 return IB_PORT_DOWN; 889 } 890 891 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave, 892 struct mlx4_vhcr *vhcr, 893 struct mlx4_cmd_mailbox *inbox, 894 struct mlx4_cmd_mailbox *outbox, 895 struct mlx4_cmd_info *cmd) 896 { 897 struct ib_smp *smp = inbox->buf; 898 u32 index; 899 u8 port, slave_port; 900 u8 opcode_modifier; 901 u16 *table; 902 int err; 903 int vidx, pidx; 904 int network_view; 905 struct mlx4_priv *priv = mlx4_priv(dev); 906 struct ib_smp *outsmp = outbox->buf; 907 __be16 *outtab = (__be16 *)(outsmp->data); 908 __be32 slave_cap_mask; 909 __be64 slave_node_guid; 910 911 slave_port = vhcr->in_modifier; 912 port = mlx4_slave_convert_port(dev, slave, slave_port); 913 914 /* network-view bit is for driver use only, and should not be passed to FW */ 915 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */ 916 network_view = !!(vhcr->op_modifier & 0x8); 917 918 if (smp->base_version == 1 && 919 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 920 smp->class_version == 1) { 921 /* host view is paravirtualized */ 922 if (!network_view && smp->method == IB_MGMT_METHOD_GET) { 923 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) { 924 index = be32_to_cpu(smp->attr_mod); 925 if (port < 1 || port > dev->caps.num_ports) 926 return -EINVAL; 927 table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1, 928 sizeof(*table) * 32, GFP_KERNEL); 929 930 if (!table) 931 return -ENOMEM; 932 /* need to get the full pkey table because the paravirtualized 933 * pkeys may be scattered among several pkey blocks. 934 */ 935 err = get_full_pkey_table(dev, port, table, inbox, outbox); 936 if (!err) { 937 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) { 938 pidx = priv->virt2phys_pkey[slave][port - 1][vidx]; 939 outtab[vidx % 32] = cpu_to_be16(table[pidx]); 940 } 941 } 942 kfree(table); 943 return err; 944 } 945 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) { 946 /*get the slave specific caps:*/ 947 /*do the command */ 948 smp->attr_mod = cpu_to_be32(port); 949 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 950 port, opcode_modifier, 951 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 952 /* modify the response for slaves */ 953 if (!err && slave != mlx4_master_func_num(dev)) { 954 u8 *state = outsmp->data + PORT_STATE_OFFSET; 955 956 *state = (*state & 0xf0) | vf_port_state(dev, port, slave); 957 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; 958 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4); 959 } 960 return err; 961 } 962 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) { 963 __be64 guid = mlx4_get_admin_guid(dev, slave, 964 port); 965 966 /* set the PF admin guid to the FW/HW burned 967 * GUID, if it wasn't yet set 968 */ 969 if (slave == 0 && guid == 0) { 970 smp->attr_mod = 0; 971 err = mlx4_cmd_box(dev, 972 inbox->dma, 973 outbox->dma, 974 vhcr->in_modifier, 975 opcode_modifier, 976 vhcr->op, 977 MLX4_CMD_TIME_CLASS_C, 978 MLX4_CMD_NATIVE); 979 if (err) 980 return err; 981 mlx4_set_admin_guid(dev, 982 *(__be64 *)outsmp-> 983 data, slave, port); 984 } else { 985 memcpy(outsmp->data, &guid, 8); 986 } 987 988 /* clean all other gids */ 989 memset(outsmp->data + 8, 0, 56); 990 return 0; 991 } 992 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) { 993 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 994 port, opcode_modifier, 995 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 996 if (!err) { 997 slave_node_guid = mlx4_get_slave_node_guid(dev, slave); 998 memcpy(outsmp->data + 12, &slave_node_guid, 8); 999 } 1000 return err; 1001 } 1002 } 1003 } 1004 1005 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs. 1006 * These are the MADs used by ib verbs (such as ib_query_gids). 1007 */ 1008 if (slave != mlx4_master_func_num(dev) && 1009 !mlx4_vf_smi_enabled(dev, slave, port)) { 1010 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 1011 smp->method == IB_MGMT_METHOD_GET) || network_view) { 1012 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", 1013 slave, smp->mgmt_class, smp->method, 1014 network_view ? "Network" : "Host", 1015 be16_to_cpu(smp->attr_id)); 1016 return -EPERM; 1017 } 1018 } 1019 1020 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1021 vhcr->in_modifier, opcode_modifier, 1022 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1023 } 1024 1025 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave, 1026 struct mlx4_vhcr *vhcr, 1027 struct mlx4_cmd_mailbox *inbox, 1028 struct mlx4_cmd_mailbox *outbox, 1029 struct mlx4_cmd_info *cmd) 1030 { 1031 return -EPERM; 1032 } 1033 1034 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave, 1035 struct mlx4_vhcr *vhcr, 1036 struct mlx4_cmd_mailbox *inbox, 1037 struct mlx4_cmd_mailbox *outbox, 1038 struct mlx4_cmd_info *cmd) 1039 { 1040 u64 in_param; 1041 u64 out_param; 1042 int err; 1043 1044 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; 1045 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; 1046 if (cmd->encode_slave_id) { 1047 in_param &= 0xffffffffffffff00ll; 1048 in_param |= slave; 1049 } 1050 1051 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, 1052 vhcr->in_modifier, vhcr->op_modifier, vhcr->op, 1053 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 1054 1055 if (cmd->out_is_imm) 1056 vhcr->out_param = out_param; 1057 1058 return err; 1059 } 1060 1061 static struct mlx4_cmd_info cmd_info[] = { 1062 { 1063 .opcode = MLX4_CMD_QUERY_FW, 1064 .has_inbox = false, 1065 .has_outbox = true, 1066 .out_is_imm = false, 1067 .encode_slave_id = false, 1068 .verify = NULL, 1069 .wrapper = mlx4_QUERY_FW_wrapper 1070 }, 1071 { 1072 .opcode = MLX4_CMD_QUERY_HCA, 1073 .has_inbox = false, 1074 .has_outbox = true, 1075 .out_is_imm = false, 1076 .encode_slave_id = false, 1077 .verify = NULL, 1078 .wrapper = NULL 1079 }, 1080 { 1081 .opcode = MLX4_CMD_QUERY_DEV_CAP, 1082 .has_inbox = false, 1083 .has_outbox = true, 1084 .out_is_imm = false, 1085 .encode_slave_id = false, 1086 .verify = NULL, 1087 .wrapper = mlx4_QUERY_DEV_CAP_wrapper 1088 }, 1089 { 1090 .opcode = MLX4_CMD_QUERY_FUNC_CAP, 1091 .has_inbox = false, 1092 .has_outbox = true, 1093 .out_is_imm = false, 1094 .encode_slave_id = false, 1095 .verify = NULL, 1096 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper 1097 }, 1098 { 1099 .opcode = MLX4_CMD_QUERY_ADAPTER, 1100 .has_inbox = false, 1101 .has_outbox = true, 1102 .out_is_imm = false, 1103 .encode_slave_id = false, 1104 .verify = NULL, 1105 .wrapper = NULL 1106 }, 1107 { 1108 .opcode = MLX4_CMD_INIT_PORT, 1109 .has_inbox = false, 1110 .has_outbox = false, 1111 .out_is_imm = false, 1112 .encode_slave_id = false, 1113 .verify = NULL, 1114 .wrapper = mlx4_INIT_PORT_wrapper 1115 }, 1116 { 1117 .opcode = MLX4_CMD_CLOSE_PORT, 1118 .has_inbox = false, 1119 .has_outbox = false, 1120 .out_is_imm = false, 1121 .encode_slave_id = false, 1122 .verify = NULL, 1123 .wrapper = mlx4_CLOSE_PORT_wrapper 1124 }, 1125 { 1126 .opcode = MLX4_CMD_QUERY_PORT, 1127 .has_inbox = false, 1128 .has_outbox = true, 1129 .out_is_imm = false, 1130 .encode_slave_id = false, 1131 .verify = NULL, 1132 .wrapper = mlx4_QUERY_PORT_wrapper 1133 }, 1134 { 1135 .opcode = MLX4_CMD_SET_PORT, 1136 .has_inbox = true, 1137 .has_outbox = false, 1138 .out_is_imm = false, 1139 .encode_slave_id = false, 1140 .verify = NULL, 1141 .wrapper = mlx4_SET_PORT_wrapper 1142 }, 1143 { 1144 .opcode = MLX4_CMD_MAP_EQ, 1145 .has_inbox = false, 1146 .has_outbox = false, 1147 .out_is_imm = false, 1148 .encode_slave_id = false, 1149 .verify = NULL, 1150 .wrapper = mlx4_MAP_EQ_wrapper 1151 }, 1152 { 1153 .opcode = MLX4_CMD_SW2HW_EQ, 1154 .has_inbox = true, 1155 .has_outbox = false, 1156 .out_is_imm = false, 1157 .encode_slave_id = true, 1158 .verify = NULL, 1159 .wrapper = mlx4_SW2HW_EQ_wrapper 1160 }, 1161 { 1162 .opcode = MLX4_CMD_HW_HEALTH_CHECK, 1163 .has_inbox = false, 1164 .has_outbox = false, 1165 .out_is_imm = false, 1166 .encode_slave_id = false, 1167 .verify = NULL, 1168 .wrapper = NULL 1169 }, 1170 { 1171 .opcode = MLX4_CMD_NOP, 1172 .has_inbox = false, 1173 .has_outbox = false, 1174 .out_is_imm = false, 1175 .encode_slave_id = false, 1176 .verify = NULL, 1177 .wrapper = NULL 1178 }, 1179 { 1180 .opcode = MLX4_CMD_CONFIG_DEV, 1181 .has_inbox = false, 1182 .has_outbox = true, 1183 .out_is_imm = false, 1184 .encode_slave_id = false, 1185 .verify = NULL, 1186 .wrapper = mlx4_CONFIG_DEV_wrapper 1187 }, 1188 { 1189 .opcode = MLX4_CMD_ALLOC_RES, 1190 .has_inbox = false, 1191 .has_outbox = false, 1192 .out_is_imm = true, 1193 .encode_slave_id = false, 1194 .verify = NULL, 1195 .wrapper = mlx4_ALLOC_RES_wrapper 1196 }, 1197 { 1198 .opcode = MLX4_CMD_FREE_RES, 1199 .has_inbox = false, 1200 .has_outbox = false, 1201 .out_is_imm = false, 1202 .encode_slave_id = false, 1203 .verify = NULL, 1204 .wrapper = mlx4_FREE_RES_wrapper 1205 }, 1206 { 1207 .opcode = MLX4_CMD_SW2HW_MPT, 1208 .has_inbox = true, 1209 .has_outbox = false, 1210 .out_is_imm = false, 1211 .encode_slave_id = true, 1212 .verify = NULL, 1213 .wrapper = mlx4_SW2HW_MPT_wrapper 1214 }, 1215 { 1216 .opcode = MLX4_CMD_QUERY_MPT, 1217 .has_inbox = false, 1218 .has_outbox = true, 1219 .out_is_imm = false, 1220 .encode_slave_id = false, 1221 .verify = NULL, 1222 .wrapper = mlx4_QUERY_MPT_wrapper 1223 }, 1224 { 1225 .opcode = MLX4_CMD_HW2SW_MPT, 1226 .has_inbox = false, 1227 .has_outbox = false, 1228 .out_is_imm = false, 1229 .encode_slave_id = false, 1230 .verify = NULL, 1231 .wrapper = mlx4_HW2SW_MPT_wrapper 1232 }, 1233 { 1234 .opcode = MLX4_CMD_READ_MTT, 1235 .has_inbox = false, 1236 .has_outbox = true, 1237 .out_is_imm = false, 1238 .encode_slave_id = false, 1239 .verify = NULL, 1240 .wrapper = NULL 1241 }, 1242 { 1243 .opcode = MLX4_CMD_WRITE_MTT, 1244 .has_inbox = true, 1245 .has_outbox = false, 1246 .out_is_imm = false, 1247 .encode_slave_id = false, 1248 .verify = NULL, 1249 .wrapper = mlx4_WRITE_MTT_wrapper 1250 }, 1251 { 1252 .opcode = MLX4_CMD_SYNC_TPT, 1253 .has_inbox = true, 1254 .has_outbox = false, 1255 .out_is_imm = false, 1256 .encode_slave_id = false, 1257 .verify = NULL, 1258 .wrapper = NULL 1259 }, 1260 { 1261 .opcode = MLX4_CMD_HW2SW_EQ, 1262 .has_inbox = false, 1263 .has_outbox = false, 1264 .out_is_imm = false, 1265 .encode_slave_id = true, 1266 .verify = NULL, 1267 .wrapper = mlx4_HW2SW_EQ_wrapper 1268 }, 1269 { 1270 .opcode = MLX4_CMD_QUERY_EQ, 1271 .has_inbox = false, 1272 .has_outbox = true, 1273 .out_is_imm = false, 1274 .encode_slave_id = true, 1275 .verify = NULL, 1276 .wrapper = mlx4_QUERY_EQ_wrapper 1277 }, 1278 { 1279 .opcode = MLX4_CMD_SW2HW_CQ, 1280 .has_inbox = true, 1281 .has_outbox = false, 1282 .out_is_imm = false, 1283 .encode_slave_id = true, 1284 .verify = NULL, 1285 .wrapper = mlx4_SW2HW_CQ_wrapper 1286 }, 1287 { 1288 .opcode = MLX4_CMD_HW2SW_CQ, 1289 .has_inbox = false, 1290 .has_outbox = false, 1291 .out_is_imm = false, 1292 .encode_slave_id = false, 1293 .verify = NULL, 1294 .wrapper = mlx4_HW2SW_CQ_wrapper 1295 }, 1296 { 1297 .opcode = MLX4_CMD_QUERY_CQ, 1298 .has_inbox = false, 1299 .has_outbox = true, 1300 .out_is_imm = false, 1301 .encode_slave_id = false, 1302 .verify = NULL, 1303 .wrapper = mlx4_QUERY_CQ_wrapper 1304 }, 1305 { 1306 .opcode = MLX4_CMD_MODIFY_CQ, 1307 .has_inbox = true, 1308 .has_outbox = false, 1309 .out_is_imm = true, 1310 .encode_slave_id = false, 1311 .verify = NULL, 1312 .wrapper = mlx4_MODIFY_CQ_wrapper 1313 }, 1314 { 1315 .opcode = MLX4_CMD_SW2HW_SRQ, 1316 .has_inbox = true, 1317 .has_outbox = false, 1318 .out_is_imm = false, 1319 .encode_slave_id = true, 1320 .verify = NULL, 1321 .wrapper = mlx4_SW2HW_SRQ_wrapper 1322 }, 1323 { 1324 .opcode = MLX4_CMD_HW2SW_SRQ, 1325 .has_inbox = false, 1326 .has_outbox = false, 1327 .out_is_imm = false, 1328 .encode_slave_id = false, 1329 .verify = NULL, 1330 .wrapper = mlx4_HW2SW_SRQ_wrapper 1331 }, 1332 { 1333 .opcode = MLX4_CMD_QUERY_SRQ, 1334 .has_inbox = false, 1335 .has_outbox = true, 1336 .out_is_imm = false, 1337 .encode_slave_id = false, 1338 .verify = NULL, 1339 .wrapper = mlx4_QUERY_SRQ_wrapper 1340 }, 1341 { 1342 .opcode = MLX4_CMD_ARM_SRQ, 1343 .has_inbox = false, 1344 .has_outbox = false, 1345 .out_is_imm = false, 1346 .encode_slave_id = false, 1347 .verify = NULL, 1348 .wrapper = mlx4_ARM_SRQ_wrapper 1349 }, 1350 { 1351 .opcode = MLX4_CMD_RST2INIT_QP, 1352 .has_inbox = true, 1353 .has_outbox = false, 1354 .out_is_imm = false, 1355 .encode_slave_id = true, 1356 .verify = NULL, 1357 .wrapper = mlx4_RST2INIT_QP_wrapper 1358 }, 1359 { 1360 .opcode = MLX4_CMD_INIT2INIT_QP, 1361 .has_inbox = true, 1362 .has_outbox = false, 1363 .out_is_imm = false, 1364 .encode_slave_id = false, 1365 .verify = NULL, 1366 .wrapper = mlx4_INIT2INIT_QP_wrapper 1367 }, 1368 { 1369 .opcode = MLX4_CMD_INIT2RTR_QP, 1370 .has_inbox = true, 1371 .has_outbox = false, 1372 .out_is_imm = false, 1373 .encode_slave_id = false, 1374 .verify = NULL, 1375 .wrapper = mlx4_INIT2RTR_QP_wrapper 1376 }, 1377 { 1378 .opcode = MLX4_CMD_RTR2RTS_QP, 1379 .has_inbox = true, 1380 .has_outbox = false, 1381 .out_is_imm = false, 1382 .encode_slave_id = false, 1383 .verify = NULL, 1384 .wrapper = mlx4_RTR2RTS_QP_wrapper 1385 }, 1386 { 1387 .opcode = MLX4_CMD_RTS2RTS_QP, 1388 .has_inbox = true, 1389 .has_outbox = false, 1390 .out_is_imm = false, 1391 .encode_slave_id = false, 1392 .verify = NULL, 1393 .wrapper = mlx4_RTS2RTS_QP_wrapper 1394 }, 1395 { 1396 .opcode = MLX4_CMD_SQERR2RTS_QP, 1397 .has_inbox = true, 1398 .has_outbox = false, 1399 .out_is_imm = false, 1400 .encode_slave_id = false, 1401 .verify = NULL, 1402 .wrapper = mlx4_SQERR2RTS_QP_wrapper 1403 }, 1404 { 1405 .opcode = MLX4_CMD_2ERR_QP, 1406 .has_inbox = false, 1407 .has_outbox = false, 1408 .out_is_imm = false, 1409 .encode_slave_id = false, 1410 .verify = NULL, 1411 .wrapper = mlx4_GEN_QP_wrapper 1412 }, 1413 { 1414 .opcode = MLX4_CMD_RTS2SQD_QP, 1415 .has_inbox = false, 1416 .has_outbox = false, 1417 .out_is_imm = false, 1418 .encode_slave_id = false, 1419 .verify = NULL, 1420 .wrapper = mlx4_GEN_QP_wrapper 1421 }, 1422 { 1423 .opcode = MLX4_CMD_SQD2SQD_QP, 1424 .has_inbox = true, 1425 .has_outbox = false, 1426 .out_is_imm = false, 1427 .encode_slave_id = false, 1428 .verify = NULL, 1429 .wrapper = mlx4_SQD2SQD_QP_wrapper 1430 }, 1431 { 1432 .opcode = MLX4_CMD_SQD2RTS_QP, 1433 .has_inbox = true, 1434 .has_outbox = false, 1435 .out_is_imm = false, 1436 .encode_slave_id = false, 1437 .verify = NULL, 1438 .wrapper = mlx4_SQD2RTS_QP_wrapper 1439 }, 1440 { 1441 .opcode = MLX4_CMD_2RST_QP, 1442 .has_inbox = false, 1443 .has_outbox = false, 1444 .out_is_imm = false, 1445 .encode_slave_id = false, 1446 .verify = NULL, 1447 .wrapper = mlx4_2RST_QP_wrapper 1448 }, 1449 { 1450 .opcode = MLX4_CMD_QUERY_QP, 1451 .has_inbox = false, 1452 .has_outbox = true, 1453 .out_is_imm = false, 1454 .encode_slave_id = false, 1455 .verify = NULL, 1456 .wrapper = mlx4_GEN_QP_wrapper 1457 }, 1458 { 1459 .opcode = MLX4_CMD_SUSPEND_QP, 1460 .has_inbox = false, 1461 .has_outbox = false, 1462 .out_is_imm = false, 1463 .encode_slave_id = false, 1464 .verify = NULL, 1465 .wrapper = mlx4_GEN_QP_wrapper 1466 }, 1467 { 1468 .opcode = MLX4_CMD_UNSUSPEND_QP, 1469 .has_inbox = false, 1470 .has_outbox = false, 1471 .out_is_imm = false, 1472 .encode_slave_id = false, 1473 .verify = NULL, 1474 .wrapper = mlx4_GEN_QP_wrapper 1475 }, 1476 { 1477 .opcode = MLX4_CMD_UPDATE_QP, 1478 .has_inbox = true, 1479 .has_outbox = false, 1480 .out_is_imm = false, 1481 .encode_slave_id = false, 1482 .verify = NULL, 1483 .wrapper = mlx4_UPDATE_QP_wrapper 1484 }, 1485 { 1486 .opcode = MLX4_CMD_GET_OP_REQ, 1487 .has_inbox = false, 1488 .has_outbox = false, 1489 .out_is_imm = false, 1490 .encode_slave_id = false, 1491 .verify = NULL, 1492 .wrapper = mlx4_CMD_EPERM_wrapper, 1493 }, 1494 { 1495 .opcode = MLX4_CMD_ALLOCATE_VPP, 1496 .has_inbox = false, 1497 .has_outbox = true, 1498 .out_is_imm = false, 1499 .encode_slave_id = false, 1500 .verify = NULL, 1501 .wrapper = mlx4_CMD_EPERM_wrapper, 1502 }, 1503 { 1504 .opcode = MLX4_CMD_SET_VPORT_QOS, 1505 .has_inbox = false, 1506 .has_outbox = true, 1507 .out_is_imm = false, 1508 .encode_slave_id = false, 1509 .verify = NULL, 1510 .wrapper = mlx4_CMD_EPERM_wrapper, 1511 }, 1512 { 1513 .opcode = MLX4_CMD_CONF_SPECIAL_QP, 1514 .has_inbox = false, 1515 .has_outbox = false, 1516 .out_is_imm = false, 1517 .encode_slave_id = false, 1518 .verify = NULL, /* XXX verify: only demux can do this */ 1519 .wrapper = NULL 1520 }, 1521 { 1522 .opcode = MLX4_CMD_MAD_IFC, 1523 .has_inbox = true, 1524 .has_outbox = true, 1525 .out_is_imm = false, 1526 .encode_slave_id = false, 1527 .verify = NULL, 1528 .wrapper = mlx4_MAD_IFC_wrapper 1529 }, 1530 { 1531 .opcode = MLX4_CMD_MAD_DEMUX, 1532 .has_inbox = false, 1533 .has_outbox = false, 1534 .out_is_imm = false, 1535 .encode_slave_id = false, 1536 .verify = NULL, 1537 .wrapper = mlx4_CMD_EPERM_wrapper 1538 }, 1539 { 1540 .opcode = MLX4_CMD_QUERY_IF_STAT, 1541 .has_inbox = false, 1542 .has_outbox = true, 1543 .out_is_imm = false, 1544 .encode_slave_id = false, 1545 .verify = NULL, 1546 .wrapper = mlx4_QUERY_IF_STAT_wrapper 1547 }, 1548 { 1549 .opcode = MLX4_CMD_ACCESS_REG, 1550 .has_inbox = true, 1551 .has_outbox = true, 1552 .out_is_imm = false, 1553 .encode_slave_id = false, 1554 .verify = NULL, 1555 .wrapper = mlx4_ACCESS_REG_wrapper, 1556 }, 1557 { 1558 .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE, 1559 .has_inbox = false, 1560 .has_outbox = false, 1561 .out_is_imm = false, 1562 .encode_slave_id = false, 1563 .verify = NULL, 1564 .wrapper = mlx4_CMD_EPERM_wrapper, 1565 }, 1566 /* Native multicast commands are not available for guests */ 1567 { 1568 .opcode = MLX4_CMD_QP_ATTACH, 1569 .has_inbox = true, 1570 .has_outbox = false, 1571 .out_is_imm = false, 1572 .encode_slave_id = false, 1573 .verify = NULL, 1574 .wrapper = mlx4_QP_ATTACH_wrapper 1575 }, 1576 { 1577 .opcode = MLX4_CMD_PROMISC, 1578 .has_inbox = false, 1579 .has_outbox = false, 1580 .out_is_imm = false, 1581 .encode_slave_id = false, 1582 .verify = NULL, 1583 .wrapper = mlx4_PROMISC_wrapper 1584 }, 1585 /* Ethernet specific commands */ 1586 { 1587 .opcode = MLX4_CMD_SET_VLAN_FLTR, 1588 .has_inbox = true, 1589 .has_outbox = false, 1590 .out_is_imm = false, 1591 .encode_slave_id = false, 1592 .verify = NULL, 1593 .wrapper = mlx4_SET_VLAN_FLTR_wrapper 1594 }, 1595 { 1596 .opcode = MLX4_CMD_SET_MCAST_FLTR, 1597 .has_inbox = false, 1598 .has_outbox = false, 1599 .out_is_imm = false, 1600 .encode_slave_id = false, 1601 .verify = NULL, 1602 .wrapper = mlx4_SET_MCAST_FLTR_wrapper 1603 }, 1604 { 1605 .opcode = MLX4_CMD_DUMP_ETH_STATS, 1606 .has_inbox = false, 1607 .has_outbox = true, 1608 .out_is_imm = false, 1609 .encode_slave_id = false, 1610 .verify = NULL, 1611 .wrapper = mlx4_DUMP_ETH_STATS_wrapper 1612 }, 1613 { 1614 .opcode = MLX4_CMD_INFORM_FLR_DONE, 1615 .has_inbox = false, 1616 .has_outbox = false, 1617 .out_is_imm = false, 1618 .encode_slave_id = false, 1619 .verify = NULL, 1620 .wrapper = NULL 1621 }, 1622 /* flow steering commands */ 1623 { 1624 .opcode = MLX4_QP_FLOW_STEERING_ATTACH, 1625 .has_inbox = true, 1626 .has_outbox = false, 1627 .out_is_imm = true, 1628 .encode_slave_id = false, 1629 .verify = NULL, 1630 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper 1631 }, 1632 { 1633 .opcode = MLX4_QP_FLOW_STEERING_DETACH, 1634 .has_inbox = false, 1635 .has_outbox = false, 1636 .out_is_imm = false, 1637 .encode_slave_id = false, 1638 .verify = NULL, 1639 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper 1640 }, 1641 { 1642 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE, 1643 .has_inbox = false, 1644 .has_outbox = false, 1645 .out_is_imm = false, 1646 .encode_slave_id = false, 1647 .verify = NULL, 1648 .wrapper = mlx4_CMD_EPERM_wrapper 1649 }, 1650 { 1651 .opcode = MLX4_CMD_VIRT_PORT_MAP, 1652 .has_inbox = false, 1653 .has_outbox = false, 1654 .out_is_imm = false, 1655 .encode_slave_id = false, 1656 .verify = NULL, 1657 .wrapper = mlx4_CMD_EPERM_wrapper 1658 }, 1659 }; 1660 1661 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 1662 struct mlx4_vhcr_cmd *in_vhcr) 1663 { 1664 struct mlx4_priv *priv = mlx4_priv(dev); 1665 struct mlx4_cmd_info *cmd = NULL; 1666 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr; 1667 struct mlx4_vhcr *vhcr; 1668 struct mlx4_cmd_mailbox *inbox = NULL; 1669 struct mlx4_cmd_mailbox *outbox = NULL; 1670 u64 in_param; 1671 u64 out_param; 1672 int ret = 0; 1673 int i; 1674 int err = 0; 1675 1676 /* Create sw representation of Virtual HCR */ 1677 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL); 1678 if (!vhcr) 1679 return -ENOMEM; 1680 1681 /* DMA in the vHCR */ 1682 if (!in_vhcr) { 1683 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1684 priv->mfunc.master.slave_state[slave].vhcr_dma, 1685 ALIGN(sizeof(struct mlx4_vhcr_cmd), 1686 MLX4_ACCESS_MEM_ALIGN), 1); 1687 if (ret) { 1688 if (!(dev->persist->state & 1689 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1690 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n", 1691 __func__, ret); 1692 kfree(vhcr); 1693 return ret; 1694 } 1695 } 1696 1697 /* Fill SW VHCR fields */ 1698 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param); 1699 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param); 1700 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier); 1701 vhcr->token = be16_to_cpu(vhcr_cmd->token); 1702 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff; 1703 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12); 1704 vhcr->e_bit = vhcr_cmd->flags & (1 << 6); 1705 1706 /* Lookup command */ 1707 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) { 1708 if (vhcr->op == cmd_info[i].opcode) { 1709 cmd = &cmd_info[i]; 1710 break; 1711 } 1712 } 1713 if (!cmd) { 1714 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n", 1715 vhcr->op, slave); 1716 vhcr_cmd->status = CMD_STAT_BAD_PARAM; 1717 goto out_status; 1718 } 1719 1720 /* Read inbox */ 1721 if (cmd->has_inbox) { 1722 vhcr->in_param &= INBOX_MASK; 1723 inbox = mlx4_alloc_cmd_mailbox(dev); 1724 if (IS_ERR(inbox)) { 1725 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1726 inbox = NULL; 1727 goto out_status; 1728 } 1729 1730 ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave, 1731 vhcr->in_param, 1732 MLX4_MAILBOX_SIZE, 1); 1733 if (ret) { 1734 if (!(dev->persist->state & 1735 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1736 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n", 1737 __func__, cmd->opcode); 1738 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR; 1739 goto out_status; 1740 } 1741 } 1742 1743 /* Apply permission and bound checks if applicable */ 1744 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) { 1745 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n", 1746 vhcr->op, slave, vhcr->in_modifier); 1747 vhcr_cmd->status = CMD_STAT_BAD_OP; 1748 goto out_status; 1749 } 1750 1751 /* Allocate outbox */ 1752 if (cmd->has_outbox) { 1753 outbox = mlx4_alloc_cmd_mailbox(dev); 1754 if (IS_ERR(outbox)) { 1755 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1756 outbox = NULL; 1757 goto out_status; 1758 } 1759 } 1760 1761 /* Execute the command! */ 1762 if (cmd->wrapper) { 1763 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox, 1764 cmd); 1765 if (cmd->out_is_imm) 1766 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1767 } else { 1768 in_param = cmd->has_inbox ? (u64) inbox->dma : 1769 vhcr->in_param; 1770 out_param = cmd->has_outbox ? (u64) outbox->dma : 1771 vhcr->out_param; 1772 err = __mlx4_cmd(dev, in_param, &out_param, 1773 cmd->out_is_imm, vhcr->in_modifier, 1774 vhcr->op_modifier, vhcr->op, 1775 MLX4_CMD_TIME_CLASS_A, 1776 MLX4_CMD_NATIVE); 1777 1778 if (cmd->out_is_imm) { 1779 vhcr->out_param = out_param; 1780 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1781 } 1782 } 1783 1784 if (err) { 1785 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1786 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n", 1787 vhcr->op, slave, vhcr->errno, err); 1788 vhcr_cmd->status = mlx4_errno_to_status(err); 1789 goto out_status; 1790 } 1791 1792 1793 /* Write outbox if command completed successfully */ 1794 if (cmd->has_outbox && !vhcr_cmd->status) { 1795 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave, 1796 vhcr->out_param, 1797 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED); 1798 if (ret) { 1799 /* If we failed to write back the outbox after the 1800 *command was successfully executed, we must fail this 1801 * slave, as it is now in undefined state */ 1802 if (!(dev->persist->state & 1803 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1804 mlx4_err(dev, "%s:Failed writing outbox\n", __func__); 1805 goto out; 1806 } 1807 } 1808 1809 out_status: 1810 /* DMA back vhcr result */ 1811 if (!in_vhcr) { 1812 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1813 priv->mfunc.master.slave_state[slave].vhcr_dma, 1814 ALIGN(sizeof(struct mlx4_vhcr), 1815 MLX4_ACCESS_MEM_ALIGN), 1816 MLX4_CMD_WRAPPED); 1817 if (ret) 1818 mlx4_err(dev, "%s:Failed writing vhcr result\n", 1819 __func__); 1820 else if (vhcr->e_bit && 1821 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe)) 1822 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n", 1823 slave); 1824 } 1825 1826 out: 1827 kfree(vhcr); 1828 mlx4_free_cmd_mailbox(dev, inbox); 1829 mlx4_free_cmd_mailbox(dev, outbox); 1830 return ret; 1831 } 1832 1833 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv, 1834 int slave, int port) 1835 { 1836 struct mlx4_vport_oper_state *vp_oper; 1837 struct mlx4_vport_state *vp_admin; 1838 struct mlx4_vf_immed_vlan_work *work; 1839 struct mlx4_dev *dev = &(priv->dev); 1840 int err; 1841 int admin_vlan_ix = NO_INDX; 1842 1843 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 1844 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 1845 1846 if (vp_oper->state.default_vlan == vp_admin->default_vlan && 1847 vp_oper->state.default_qos == vp_admin->default_qos && 1848 vp_oper->state.link_state == vp_admin->link_state && 1849 vp_oper->state.qos_vport == vp_admin->qos_vport) 1850 return 0; 1851 1852 if (!(priv->mfunc.master.slave_state[slave].active && 1853 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) { 1854 /* even if the UPDATE_QP command isn't supported, we still want 1855 * to set this VF link according to the admin directive 1856 */ 1857 vp_oper->state.link_state = vp_admin->link_state; 1858 return -1; 1859 } 1860 1861 mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n", 1862 slave, port); 1863 mlx4_dbg(dev, "vlan %d QoS %d link down %d\n", 1864 vp_admin->default_vlan, vp_admin->default_qos, 1865 vp_admin->link_state); 1866 1867 work = kzalloc(sizeof(*work), GFP_KERNEL); 1868 if (!work) 1869 return -ENOMEM; 1870 1871 if (vp_oper->state.default_vlan != vp_admin->default_vlan) { 1872 if (MLX4_VGT != vp_admin->default_vlan) { 1873 err = __mlx4_register_vlan(&priv->dev, port, 1874 vp_admin->default_vlan, 1875 &admin_vlan_ix); 1876 if (err) { 1877 kfree(work); 1878 mlx4_warn(&priv->dev, 1879 "No vlan resources slave %d, port %d\n", 1880 slave, port); 1881 return err; 1882 } 1883 } else { 1884 admin_vlan_ix = NO_INDX; 1885 } 1886 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN; 1887 mlx4_dbg(&priv->dev, 1888 "alloc vlan %d idx %d slave %d port %d\n", 1889 (int)(vp_admin->default_vlan), 1890 admin_vlan_ix, slave, port); 1891 } 1892 1893 /* save original vlan ix and vlan id */ 1894 work->orig_vlan_id = vp_oper->state.default_vlan; 1895 work->orig_vlan_ix = vp_oper->vlan_idx; 1896 1897 /* handle new qos */ 1898 if (vp_oper->state.default_qos != vp_admin->default_qos) 1899 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS; 1900 1901 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN) 1902 vp_oper->vlan_idx = admin_vlan_ix; 1903 1904 vp_oper->state.default_vlan = vp_admin->default_vlan; 1905 vp_oper->state.default_qos = vp_admin->default_qos; 1906 vp_oper->state.link_state = vp_admin->link_state; 1907 vp_oper->state.qos_vport = vp_admin->qos_vport; 1908 1909 if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE) 1910 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE; 1911 1912 /* iterate over QPs owned by this slave, using UPDATE_QP */ 1913 work->port = port; 1914 work->slave = slave; 1915 work->qos = vp_oper->state.default_qos; 1916 work->qos_vport = vp_oper->state.qos_vport; 1917 work->vlan_id = vp_oper->state.default_vlan; 1918 work->vlan_ix = vp_oper->vlan_idx; 1919 work->priv = priv; 1920 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler); 1921 queue_work(priv->mfunc.master.comm_wq, &work->work); 1922 1923 return 0; 1924 } 1925 1926 static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port) 1927 { 1928 struct mlx4_qos_manager *port_qos_ctl; 1929 struct mlx4_priv *priv = mlx4_priv(dev); 1930 1931 port_qos_ctl = &priv->mfunc.master.qos_ctl[port]; 1932 bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP); 1933 1934 /* Enable only default prio at PF init routine */ 1935 set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm); 1936 } 1937 1938 static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port) 1939 { 1940 int i; 1941 int err; 1942 int num_vfs; 1943 u16 availible_vpp; 1944 u8 vpp_param[MLX4_NUM_UP]; 1945 struct mlx4_qos_manager *port_qos; 1946 struct mlx4_priv *priv = mlx4_priv(dev); 1947 1948 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1949 if (err) { 1950 mlx4_info(dev, "Failed query availible VPPs\n"); 1951 return; 1952 } 1953 1954 port_qos = &priv->mfunc.master.qos_ctl[port]; 1955 num_vfs = (availible_vpp / 1956 bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP)); 1957 1958 for (i = 0; i < MLX4_NUM_UP; i++) { 1959 if (test_bit(i, port_qos->priority_bm)) 1960 vpp_param[i] = num_vfs; 1961 } 1962 1963 err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param); 1964 if (err) { 1965 mlx4_info(dev, "Failed allocating VPPs\n"); 1966 return; 1967 } 1968 1969 /* Query actual allocated VPP, just to make sure */ 1970 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1971 if (err) { 1972 mlx4_info(dev, "Failed query availible VPPs\n"); 1973 return; 1974 } 1975 1976 port_qos->num_of_qos_vfs = num_vfs; 1977 mlx4_dbg(dev, "Port %d Availible VPPs %d\n", port, availible_vpp); 1978 1979 for (i = 0; i < MLX4_NUM_UP; i++) 1980 mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i, 1981 vpp_param[i]); 1982 } 1983 1984 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave) 1985 { 1986 int port, err; 1987 struct mlx4_vport_state *vp_admin; 1988 struct mlx4_vport_oper_state *vp_oper; 1989 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 1990 &priv->dev, slave); 1991 int min_port = find_first_bit(actv_ports.ports, 1992 priv->dev.caps.num_ports) + 1; 1993 int max_port = min_port - 1 + 1994 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 1995 1996 for (port = min_port; port <= max_port; port++) { 1997 if (!test_bit(port - 1, actv_ports.ports)) 1998 continue; 1999 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2000 priv->mfunc.master.vf_admin[slave].enable_smi[port]; 2001 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2002 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 2003 vp_oper->state = *vp_admin; 2004 if (MLX4_VGT != vp_admin->default_vlan) { 2005 err = __mlx4_register_vlan(&priv->dev, port, 2006 vp_admin->default_vlan, &(vp_oper->vlan_idx)); 2007 if (err) { 2008 vp_oper->vlan_idx = NO_INDX; 2009 mlx4_warn(&priv->dev, 2010 "No vlan resources slave %d, port %d\n", 2011 slave, port); 2012 return err; 2013 } 2014 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", 2015 (int)(vp_oper->state.default_vlan), 2016 vp_oper->vlan_idx, slave, port); 2017 } 2018 if (vp_admin->spoofchk) { 2019 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev, 2020 port, 2021 vp_admin->mac); 2022 if (0 > vp_oper->mac_idx) { 2023 err = vp_oper->mac_idx; 2024 vp_oper->mac_idx = NO_INDX; 2025 mlx4_warn(&priv->dev, 2026 "No mac resources slave %d, port %d\n", 2027 slave, port); 2028 return err; 2029 } 2030 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n", 2031 vp_oper->state.mac, vp_oper->mac_idx, slave, port); 2032 } 2033 } 2034 return 0; 2035 } 2036 2037 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave) 2038 { 2039 int port; 2040 struct mlx4_vport_oper_state *vp_oper; 2041 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2042 &priv->dev, slave); 2043 int min_port = find_first_bit(actv_ports.ports, 2044 priv->dev.caps.num_ports) + 1; 2045 int max_port = min_port - 1 + 2046 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2047 2048 2049 for (port = min_port; port <= max_port; port++) { 2050 if (!test_bit(port - 1, actv_ports.ports)) 2051 continue; 2052 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2053 MLX4_VF_SMI_DISABLED; 2054 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2055 if (NO_INDX != vp_oper->vlan_idx) { 2056 __mlx4_unregister_vlan(&priv->dev, 2057 port, vp_oper->state.default_vlan); 2058 vp_oper->vlan_idx = NO_INDX; 2059 } 2060 if (NO_INDX != vp_oper->mac_idx) { 2061 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); 2062 vp_oper->mac_idx = NO_INDX; 2063 } 2064 } 2065 return; 2066 } 2067 2068 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd, 2069 u16 param, u8 toggle) 2070 { 2071 struct mlx4_priv *priv = mlx4_priv(dev); 2072 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2073 u32 reply; 2074 u8 is_going_down = 0; 2075 int i; 2076 unsigned long flags; 2077 2078 slave_state[slave].comm_toggle ^= 1; 2079 reply = (u32) slave_state[slave].comm_toggle << 31; 2080 if (toggle != slave_state[slave].comm_toggle) { 2081 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n", 2082 toggle, slave); 2083 goto reset_slave; 2084 } 2085 if (cmd == MLX4_COMM_CMD_RESET) { 2086 mlx4_warn(dev, "Received reset from slave:%d\n", slave); 2087 slave_state[slave].active = false; 2088 slave_state[slave].old_vlan_api = false; 2089 mlx4_master_deactivate_admin_state(priv, slave); 2090 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) { 2091 slave_state[slave].event_eq[i].eqn = -1; 2092 slave_state[slave].event_eq[i].token = 0; 2093 } 2094 /*check if we are in the middle of FLR process, 2095 if so return "retry" status to the slave*/ 2096 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) 2097 goto inform_slave_state; 2098 2099 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave); 2100 2101 /* write the version in the event field */ 2102 reply |= mlx4_comm_get_version(); 2103 2104 goto reset_slave; 2105 } 2106 /*command from slave in the middle of FLR*/ 2107 if (cmd != MLX4_COMM_CMD_RESET && 2108 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) { 2109 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n", 2110 slave, cmd); 2111 return; 2112 } 2113 2114 switch (cmd) { 2115 case MLX4_COMM_CMD_VHCR0: 2116 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET) 2117 goto reset_slave; 2118 slave_state[slave].vhcr_dma = ((u64) param) << 48; 2119 priv->mfunc.master.slave_state[slave].cookie = 0; 2120 break; 2121 case MLX4_COMM_CMD_VHCR1: 2122 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0) 2123 goto reset_slave; 2124 slave_state[slave].vhcr_dma |= ((u64) param) << 32; 2125 break; 2126 case MLX4_COMM_CMD_VHCR2: 2127 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1) 2128 goto reset_slave; 2129 slave_state[slave].vhcr_dma |= ((u64) param) << 16; 2130 break; 2131 case MLX4_COMM_CMD_VHCR_EN: 2132 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2) 2133 goto reset_slave; 2134 slave_state[slave].vhcr_dma |= param; 2135 if (mlx4_master_activate_admin_state(priv, slave)) 2136 goto reset_slave; 2137 slave_state[slave].active = true; 2138 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave); 2139 break; 2140 case MLX4_COMM_CMD_VHCR_POST: 2141 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) && 2142 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) { 2143 mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n", 2144 slave, cmd, slave_state[slave].last_cmd); 2145 goto reset_slave; 2146 } 2147 2148 mutex_lock(&priv->cmd.slave_cmd_mutex); 2149 if (mlx4_master_process_vhcr(dev, slave, NULL)) { 2150 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n", 2151 slave); 2152 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2153 goto reset_slave; 2154 } 2155 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2156 break; 2157 default: 2158 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave); 2159 goto reset_slave; 2160 } 2161 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2162 if (!slave_state[slave].is_slave_going_down) 2163 slave_state[slave].last_cmd = cmd; 2164 else 2165 is_going_down = 1; 2166 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2167 if (is_going_down) { 2168 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n", 2169 cmd, slave); 2170 return; 2171 } 2172 __raw_writel((__force u32) cpu_to_be32(reply), 2173 &priv->mfunc.comm[slave].slave_read); 2174 mmiowb(); 2175 2176 return; 2177 2178 reset_slave: 2179 /* cleanup any slave resources */ 2180 if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP) 2181 mlx4_delete_all_resources_for_slave(dev, slave); 2182 2183 if (cmd != MLX4_COMM_CMD_RESET) { 2184 mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n", 2185 slave, cmd); 2186 /* Turn on internal error letting slave reset itself immeditaly, 2187 * otherwise it might take till timeout on command is passed 2188 */ 2189 reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR); 2190 } 2191 2192 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2193 if (!slave_state[slave].is_slave_going_down) 2194 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET; 2195 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2196 /*with slave in the middle of flr, no need to clean resources again.*/ 2197 inform_slave_state: 2198 memset(&slave_state[slave].event_eq, 0, 2199 sizeof(struct mlx4_slave_event_eq_info)); 2200 __raw_writel((__force u32) cpu_to_be32(reply), 2201 &priv->mfunc.comm[slave].slave_read); 2202 wmb(); 2203 } 2204 2205 /* master command processing */ 2206 void mlx4_master_comm_channel(struct work_struct *work) 2207 { 2208 struct mlx4_mfunc_master_ctx *master = 2209 container_of(work, 2210 struct mlx4_mfunc_master_ctx, 2211 comm_work); 2212 struct mlx4_mfunc *mfunc = 2213 container_of(master, struct mlx4_mfunc, master); 2214 struct mlx4_priv *priv = 2215 container_of(mfunc, struct mlx4_priv, mfunc); 2216 struct mlx4_dev *dev = &priv->dev; 2217 __be32 *bit_vec; 2218 u32 comm_cmd; 2219 u32 vec; 2220 int i, j, slave; 2221 int toggle; 2222 int served = 0; 2223 int reported = 0; 2224 u32 slt; 2225 2226 bit_vec = master->comm_arm_bit_vector; 2227 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) { 2228 vec = be32_to_cpu(bit_vec[i]); 2229 for (j = 0; j < 32; j++) { 2230 if (!(vec & (1 << j))) 2231 continue; 2232 ++reported; 2233 slave = (i * 32) + j; 2234 comm_cmd = swab32(readl( 2235 &mfunc->comm[slave].slave_write)); 2236 slt = swab32(readl(&mfunc->comm[slave].slave_read)) 2237 >> 31; 2238 toggle = comm_cmd >> 31; 2239 if (toggle != slt) { 2240 if (master->slave_state[slave].comm_toggle 2241 != slt) { 2242 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n", 2243 slave, slt, 2244 master->slave_state[slave].comm_toggle); 2245 master->slave_state[slave].comm_toggle = 2246 slt; 2247 } 2248 mlx4_master_do_cmd(dev, slave, 2249 comm_cmd >> 16 & 0xff, 2250 comm_cmd & 0xffff, toggle); 2251 ++served; 2252 } 2253 } 2254 } 2255 2256 if (reported && reported != served) 2257 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n", 2258 reported, served); 2259 2260 if (mlx4_ARM_COMM_CHANNEL(dev)) 2261 mlx4_warn(dev, "Failed to arm comm channel events\n"); 2262 } 2263 2264 static int sync_toggles(struct mlx4_dev *dev) 2265 { 2266 struct mlx4_priv *priv = mlx4_priv(dev); 2267 u32 wr_toggle; 2268 u32 rd_toggle; 2269 unsigned long end; 2270 2271 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)); 2272 if (wr_toggle == 0xffffffff) 2273 end = jiffies + msecs_to_jiffies(30000); 2274 else 2275 end = jiffies + msecs_to_jiffies(5000); 2276 2277 while (time_before(jiffies, end)) { 2278 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)); 2279 if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) { 2280 /* PCI might be offline */ 2281 msleep(100); 2282 wr_toggle = swab32(readl(&priv->mfunc.comm-> 2283 slave_write)); 2284 continue; 2285 } 2286 2287 if (rd_toggle >> 31 == wr_toggle >> 31) { 2288 priv->cmd.comm_toggle = rd_toggle >> 31; 2289 return 0; 2290 } 2291 2292 cond_resched(); 2293 } 2294 2295 /* 2296 * we could reach here if for example the previous VM using this 2297 * function misbehaved and left the channel with unsynced state. We 2298 * should fix this here and give this VM a chance to use a properly 2299 * synced channel 2300 */ 2301 mlx4_warn(dev, "recovering from previously mis-behaved VM\n"); 2302 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read); 2303 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write); 2304 priv->cmd.comm_toggle = 0; 2305 2306 return 0; 2307 } 2308 2309 int mlx4_multi_func_init(struct mlx4_dev *dev) 2310 { 2311 struct mlx4_priv *priv = mlx4_priv(dev); 2312 struct mlx4_slave_state *s_state; 2313 int i, j, err, port; 2314 2315 if (mlx4_is_master(dev)) 2316 priv->mfunc.comm = 2317 ioremap(pci_resource_start(dev->persist->pdev, 2318 priv->fw.comm_bar) + 2319 priv->fw.comm_base, MLX4_COMM_PAGESIZE); 2320 else 2321 priv->mfunc.comm = 2322 ioremap(pci_resource_start(dev->persist->pdev, 2) + 2323 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE); 2324 if (!priv->mfunc.comm) { 2325 mlx4_err(dev, "Couldn't map communication vector\n"); 2326 goto err_vhcr; 2327 } 2328 2329 if (mlx4_is_master(dev)) { 2330 struct mlx4_vf_oper_state *vf_oper; 2331 struct mlx4_vf_admin_state *vf_admin; 2332 2333 priv->mfunc.master.slave_state = 2334 kzalloc(dev->num_slaves * 2335 sizeof(struct mlx4_slave_state), GFP_KERNEL); 2336 if (!priv->mfunc.master.slave_state) 2337 goto err_comm; 2338 2339 priv->mfunc.master.vf_admin = 2340 kzalloc(dev->num_slaves * 2341 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL); 2342 if (!priv->mfunc.master.vf_admin) 2343 goto err_comm_admin; 2344 2345 priv->mfunc.master.vf_oper = 2346 kzalloc(dev->num_slaves * 2347 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL); 2348 if (!priv->mfunc.master.vf_oper) 2349 goto err_comm_oper; 2350 2351 for (i = 0; i < dev->num_slaves; ++i) { 2352 vf_admin = &priv->mfunc.master.vf_admin[i]; 2353 vf_oper = &priv->mfunc.master.vf_oper[i]; 2354 s_state = &priv->mfunc.master.slave_state[i]; 2355 s_state->last_cmd = MLX4_COMM_CMD_RESET; 2356 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]); 2357 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j) 2358 s_state->event_eq[j].eqn = -1; 2359 __raw_writel((__force u32) 0, 2360 &priv->mfunc.comm[i].slave_write); 2361 __raw_writel((__force u32) 0, 2362 &priv->mfunc.comm[i].slave_read); 2363 mmiowb(); 2364 for (port = 1; port <= MLX4_MAX_PORTS; port++) { 2365 struct mlx4_vport_state *admin_vport; 2366 struct mlx4_vport_state *oper_vport; 2367 2368 s_state->vlan_filter[port] = 2369 kzalloc(sizeof(struct mlx4_vlan_fltr), 2370 GFP_KERNEL); 2371 if (!s_state->vlan_filter[port]) { 2372 if (--port) 2373 kfree(s_state->vlan_filter[port]); 2374 goto err_slaves; 2375 } 2376 2377 admin_vport = &vf_admin->vport[port]; 2378 oper_vport = &vf_oper->vport[port].state; 2379 INIT_LIST_HEAD(&s_state->mcast_filters[port]); 2380 admin_vport->default_vlan = MLX4_VGT; 2381 oper_vport->default_vlan = MLX4_VGT; 2382 admin_vport->qos_vport = 2383 MLX4_VPP_DEFAULT_VPORT; 2384 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; 2385 vf_oper->vport[port].vlan_idx = NO_INDX; 2386 vf_oper->vport[port].mac_idx = NO_INDX; 2387 mlx4_set_random_admin_guid(dev, i, port); 2388 } 2389 spin_lock_init(&s_state->lock); 2390 } 2391 2392 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) { 2393 for (port = 1; port <= dev->caps.num_ports; port++) { 2394 if (mlx4_is_eth(dev, port)) { 2395 mlx4_set_default_port_qos(dev, port); 2396 mlx4_allocate_port_vpps(dev, port); 2397 } 2398 } 2399 } 2400 2401 memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe)); 2402 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD; 2403 INIT_WORK(&priv->mfunc.master.comm_work, 2404 mlx4_master_comm_channel); 2405 INIT_WORK(&priv->mfunc.master.slave_event_work, 2406 mlx4_gen_slave_eqe); 2407 INIT_WORK(&priv->mfunc.master.slave_flr_event_work, 2408 mlx4_master_handle_slave_flr); 2409 spin_lock_init(&priv->mfunc.master.slave_state_lock); 2410 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock); 2411 priv->mfunc.master.comm_wq = 2412 create_singlethread_workqueue("mlx4_comm"); 2413 if (!priv->mfunc.master.comm_wq) 2414 goto err_slaves; 2415 2416 if (mlx4_init_resource_tracker(dev)) 2417 goto err_thread; 2418 2419 } else { 2420 err = sync_toggles(dev); 2421 if (err) { 2422 mlx4_err(dev, "Couldn't sync toggles\n"); 2423 goto err_comm; 2424 } 2425 } 2426 return 0; 2427 2428 err_thread: 2429 flush_workqueue(priv->mfunc.master.comm_wq); 2430 destroy_workqueue(priv->mfunc.master.comm_wq); 2431 err_slaves: 2432 while (i--) { 2433 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2434 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2435 } 2436 kfree(priv->mfunc.master.vf_oper); 2437 err_comm_oper: 2438 kfree(priv->mfunc.master.vf_admin); 2439 err_comm_admin: 2440 kfree(priv->mfunc.master.slave_state); 2441 err_comm: 2442 iounmap(priv->mfunc.comm); 2443 err_vhcr: 2444 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2445 priv->mfunc.vhcr, 2446 priv->mfunc.vhcr_dma); 2447 priv->mfunc.vhcr = NULL; 2448 return -ENOMEM; 2449 } 2450 2451 int mlx4_cmd_init(struct mlx4_dev *dev) 2452 { 2453 struct mlx4_priv *priv = mlx4_priv(dev); 2454 int flags = 0; 2455 2456 if (!priv->cmd.initialized) { 2457 mutex_init(&priv->cmd.slave_cmd_mutex); 2458 sema_init(&priv->cmd.poll_sem, 1); 2459 priv->cmd.use_events = 0; 2460 priv->cmd.toggle = 1; 2461 priv->cmd.initialized = 1; 2462 flags |= MLX4_CMD_CLEANUP_STRUCT; 2463 } 2464 2465 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) { 2466 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev, 2467 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE); 2468 if (!priv->cmd.hcr) { 2469 mlx4_err(dev, "Couldn't map command register\n"); 2470 goto err; 2471 } 2472 flags |= MLX4_CMD_CLEANUP_HCR; 2473 } 2474 2475 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) { 2476 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev, 2477 PAGE_SIZE, 2478 &priv->mfunc.vhcr_dma, 2479 GFP_KERNEL); 2480 if (!priv->mfunc.vhcr) 2481 goto err; 2482 2483 flags |= MLX4_CMD_CLEANUP_VHCR; 2484 } 2485 2486 if (!priv->cmd.pool) { 2487 priv->cmd.pool = pci_pool_create("mlx4_cmd", 2488 dev->persist->pdev, 2489 MLX4_MAILBOX_SIZE, 2490 MLX4_MAILBOX_SIZE, 0); 2491 if (!priv->cmd.pool) 2492 goto err; 2493 2494 flags |= MLX4_CMD_CLEANUP_POOL; 2495 } 2496 2497 return 0; 2498 2499 err: 2500 mlx4_cmd_cleanup(dev, flags); 2501 return -ENOMEM; 2502 } 2503 2504 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev) 2505 { 2506 struct mlx4_priv *priv = mlx4_priv(dev); 2507 int slave; 2508 u32 slave_read; 2509 2510 /* Report an internal error event to all 2511 * communication channels. 2512 */ 2513 for (slave = 0; slave < dev->num_slaves; slave++) { 2514 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read)); 2515 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR; 2516 __raw_writel((__force u32)cpu_to_be32(slave_read), 2517 &priv->mfunc.comm[slave].slave_read); 2518 /* Make sure that our comm channel write doesn't 2519 * get mixed in with writes from another CPU. 2520 */ 2521 mmiowb(); 2522 } 2523 } 2524 2525 void mlx4_multi_func_cleanup(struct mlx4_dev *dev) 2526 { 2527 struct mlx4_priv *priv = mlx4_priv(dev); 2528 int i, port; 2529 2530 if (mlx4_is_master(dev)) { 2531 flush_workqueue(priv->mfunc.master.comm_wq); 2532 destroy_workqueue(priv->mfunc.master.comm_wq); 2533 for (i = 0; i < dev->num_slaves; i++) { 2534 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2535 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2536 } 2537 kfree(priv->mfunc.master.slave_state); 2538 kfree(priv->mfunc.master.vf_admin); 2539 kfree(priv->mfunc.master.vf_oper); 2540 dev->num_slaves = 0; 2541 } 2542 2543 iounmap(priv->mfunc.comm); 2544 } 2545 2546 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask) 2547 { 2548 struct mlx4_priv *priv = mlx4_priv(dev); 2549 2550 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) { 2551 pci_pool_destroy(priv->cmd.pool); 2552 priv->cmd.pool = NULL; 2553 } 2554 2555 if (!mlx4_is_slave(dev) && priv->cmd.hcr && 2556 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) { 2557 iounmap(priv->cmd.hcr); 2558 priv->cmd.hcr = NULL; 2559 } 2560 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr && 2561 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) { 2562 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2563 priv->mfunc.vhcr, priv->mfunc.vhcr_dma); 2564 priv->mfunc.vhcr = NULL; 2565 } 2566 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT)) 2567 priv->cmd.initialized = 0; 2568 } 2569 2570 /* 2571 * Switch to using events to issue FW commands (can only be called 2572 * after event queue for command events has been initialized). 2573 */ 2574 int mlx4_cmd_use_events(struct mlx4_dev *dev) 2575 { 2576 struct mlx4_priv *priv = mlx4_priv(dev); 2577 int i; 2578 int err = 0; 2579 2580 priv->cmd.context = kmalloc(priv->cmd.max_cmds * 2581 sizeof (struct mlx4_cmd_context), 2582 GFP_KERNEL); 2583 if (!priv->cmd.context) 2584 return -ENOMEM; 2585 2586 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2587 priv->cmd.context[i].token = i; 2588 priv->cmd.context[i].next = i + 1; 2589 /* To support fatal error flow, initialize all 2590 * cmd contexts to allow simulating completions 2591 * with complete() at any time. 2592 */ 2593 init_completion(&priv->cmd.context[i].done); 2594 } 2595 2596 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1; 2597 priv->cmd.free_head = 0; 2598 2599 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds); 2600 spin_lock_init(&priv->cmd.context_lock); 2601 2602 for (priv->cmd.token_mask = 1; 2603 priv->cmd.token_mask < priv->cmd.max_cmds; 2604 priv->cmd.token_mask <<= 1) 2605 ; /* nothing */ 2606 --priv->cmd.token_mask; 2607 2608 down(&priv->cmd.poll_sem); 2609 priv->cmd.use_events = 1; 2610 2611 return err; 2612 } 2613 2614 /* 2615 * Switch back to polling (used when shutting down the device) 2616 */ 2617 void mlx4_cmd_use_polling(struct mlx4_dev *dev) 2618 { 2619 struct mlx4_priv *priv = mlx4_priv(dev); 2620 int i; 2621 2622 priv->cmd.use_events = 0; 2623 2624 for (i = 0; i < priv->cmd.max_cmds; ++i) 2625 down(&priv->cmd.event_sem); 2626 2627 kfree(priv->cmd.context); 2628 2629 up(&priv->cmd.poll_sem); 2630 } 2631 2632 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) 2633 { 2634 struct mlx4_cmd_mailbox *mailbox; 2635 2636 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL); 2637 if (!mailbox) 2638 return ERR_PTR(-ENOMEM); 2639 2640 mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL, 2641 &mailbox->dma); 2642 if (!mailbox->buf) { 2643 kfree(mailbox); 2644 return ERR_PTR(-ENOMEM); 2645 } 2646 2647 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE); 2648 2649 return mailbox; 2650 } 2651 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox); 2652 2653 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, 2654 struct mlx4_cmd_mailbox *mailbox) 2655 { 2656 if (!mailbox) 2657 return; 2658 2659 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma); 2660 kfree(mailbox); 2661 } 2662 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox); 2663 2664 u32 mlx4_comm_get_version(void) 2665 { 2666 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER; 2667 } 2668 2669 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf) 2670 { 2671 if ((vf < 0) || (vf >= dev->persist->num_vfs)) { 2672 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", 2673 vf, dev->persist->num_vfs); 2674 return -EINVAL; 2675 } 2676 2677 return vf+1; 2678 } 2679 2680 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave) 2681 { 2682 if (slave < 1 || slave > dev->persist->num_vfs) { 2683 mlx4_err(dev, 2684 "Bad slave number:%d (number of activated slaves: %lu)\n", 2685 slave, dev->num_slaves); 2686 return -EINVAL; 2687 } 2688 return slave - 1; 2689 } 2690 2691 void mlx4_cmd_wake_completions(struct mlx4_dev *dev) 2692 { 2693 struct mlx4_priv *priv = mlx4_priv(dev); 2694 struct mlx4_cmd_context *context; 2695 int i; 2696 2697 spin_lock(&priv->cmd.context_lock); 2698 if (priv->cmd.context) { 2699 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2700 context = &priv->cmd.context[i]; 2701 context->fw_status = CMD_STAT_INTERNAL_ERR; 2702 context->result = 2703 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 2704 complete(&context->done); 2705 } 2706 } 2707 spin_unlock(&priv->cmd.context_lock); 2708 } 2709 2710 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave) 2711 { 2712 struct mlx4_active_ports actv_ports; 2713 int vf; 2714 2715 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS); 2716 2717 if (slave == 0) { 2718 bitmap_fill(actv_ports.ports, dev->caps.num_ports); 2719 return actv_ports; 2720 } 2721 2722 vf = mlx4_get_vf_indx(dev, slave); 2723 if (vf < 0) 2724 return actv_ports; 2725 2726 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1, 2727 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports, 2728 dev->caps.num_ports)); 2729 2730 return actv_ports; 2731 } 2732 EXPORT_SYMBOL_GPL(mlx4_get_active_ports); 2733 2734 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port) 2735 { 2736 unsigned n; 2737 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2738 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2739 2740 if (port <= 0 || port > m) 2741 return -EINVAL; 2742 2743 n = find_first_bit(actv_ports.ports, dev->caps.num_ports); 2744 if (port <= n) 2745 port = n + 1; 2746 2747 return port; 2748 } 2749 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port); 2750 2751 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port) 2752 { 2753 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2754 if (test_bit(port - 1, actv_ports.ports)) 2755 return port - 2756 find_first_bit(actv_ports.ports, dev->caps.num_ports); 2757 2758 return -1; 2759 } 2760 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port); 2761 2762 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev, 2763 int port) 2764 { 2765 unsigned i; 2766 struct mlx4_slaves_pport slaves_pport; 2767 2768 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2769 2770 if (port <= 0 || port > dev->caps.num_ports) 2771 return slaves_pport; 2772 2773 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2774 struct mlx4_active_ports actv_ports = 2775 mlx4_get_active_ports(dev, i); 2776 if (test_bit(port - 1, actv_ports.ports)) 2777 set_bit(i, slaves_pport.slaves); 2778 } 2779 2780 return slaves_pport; 2781 } 2782 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport); 2783 2784 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( 2785 struct mlx4_dev *dev, 2786 const struct mlx4_active_ports *crit_ports) 2787 { 2788 unsigned i; 2789 struct mlx4_slaves_pport slaves_pport; 2790 2791 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2792 2793 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2794 struct mlx4_active_ports actv_ports = 2795 mlx4_get_active_ports(dev, i); 2796 if (bitmap_equal(crit_ports->ports, actv_ports.ports, 2797 dev->caps.num_ports)) 2798 set_bit(i, slaves_pport.slaves); 2799 } 2800 2801 return slaves_pport; 2802 } 2803 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); 2804 2805 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) 2806 { 2807 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2808 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) 2809 + 1; 2810 int max_port = min_port + 2811 bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2812 2813 if (port < min_port) 2814 port = min_port; 2815 else if (port >= max_port) 2816 port = max_port - 1; 2817 2818 return port; 2819 } 2820 2821 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port, 2822 int max_tx_rate) 2823 { 2824 int i; 2825 int err; 2826 struct mlx4_qos_manager *port_qos; 2827 struct mlx4_dev *dev = &priv->dev; 2828 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP]; 2829 2830 port_qos = &priv->mfunc.master.qos_ctl[port]; 2831 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP); 2832 2833 if (slave > port_qos->num_of_qos_vfs) { 2834 mlx4_info(dev, "No availible VPP resources for this VF\n"); 2835 return -EINVAL; 2836 } 2837 2838 /* Query for default QoS values from Vport 0 is needed */ 2839 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos); 2840 if (err) { 2841 mlx4_info(dev, "Failed to query Vport 0 QoS values\n"); 2842 return err; 2843 } 2844 2845 for (i = 0; i < MLX4_NUM_UP; i++) { 2846 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) { 2847 vpp_qos[i].max_avg_bw = max_tx_rate; 2848 vpp_qos[i].enable = 1; 2849 } else { 2850 /* if user supplied tx_rate == 0, meaning no rate limit 2851 * configuration is required. so we are leaving the 2852 * value of max_avg_bw as queried from Vport 0. 2853 */ 2854 vpp_qos[i].enable = 0; 2855 } 2856 } 2857 2858 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos); 2859 if (err) { 2860 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave); 2861 return err; 2862 } 2863 2864 return 0; 2865 } 2866 2867 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port, 2868 struct mlx4_vport_state *vf_admin) 2869 { 2870 struct mlx4_qos_manager *info; 2871 struct mlx4_priv *priv = mlx4_priv(dev); 2872 2873 if (!mlx4_is_master(dev) || 2874 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 2875 return false; 2876 2877 info = &priv->mfunc.master.qos_ctl[port]; 2878 2879 if (vf_admin->default_vlan != MLX4_VGT && 2880 test_bit(vf_admin->default_qos, info->priority_bm)) 2881 return true; 2882 2883 return false; 2884 } 2885 2886 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, 2887 struct mlx4_vport_state *vf_admin, 2888 int vlan, int qos) 2889 { 2890 struct mlx4_vport_state dummy_admin = {0}; 2891 2892 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) || 2893 !vf_admin->tx_rate) 2894 return true; 2895 2896 dummy_admin.default_qos = qos; 2897 dummy_admin.default_vlan = vlan; 2898 2899 /* VF wants to move to other VST state which is valid with current 2900 * rate limit. Either differnt default vlan in VST or other 2901 * supported QoS priority. Otherwise we don't allow this change when 2902 * the TX rate is still configured. 2903 */ 2904 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin)) 2905 return true; 2906 2907 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n", 2908 (vlan == MLX4_VGT) ? "VGT" : "VST"); 2909 2910 if (vlan != MLX4_VGT) 2911 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos); 2912 2913 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n"); 2914 2915 return false; 2916 } 2917 2918 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) 2919 { 2920 struct mlx4_priv *priv = mlx4_priv(dev); 2921 struct mlx4_vport_state *s_info; 2922 int slave; 2923 2924 if (!mlx4_is_master(dev)) 2925 return -EPROTONOSUPPORT; 2926 2927 slave = mlx4_get_slave_indx(dev, vf); 2928 if (slave < 0) 2929 return -EINVAL; 2930 2931 port = mlx4_slaves_closest_port(dev, slave, port); 2932 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 2933 s_info->mac = mac; 2934 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n", 2935 vf, port, s_info->mac); 2936 return 0; 2937 } 2938 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac); 2939 2940 2941 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos) 2942 { 2943 struct mlx4_priv *priv = mlx4_priv(dev); 2944 struct mlx4_vport_state *vf_admin; 2945 int slave; 2946 2947 if ((!mlx4_is_master(dev)) || 2948 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL)) 2949 return -EPROTONOSUPPORT; 2950 2951 if ((vlan > 4095) || (qos > 7)) 2952 return -EINVAL; 2953 2954 slave = mlx4_get_slave_indx(dev, vf); 2955 if (slave < 0) 2956 return -EINVAL; 2957 2958 port = mlx4_slaves_closest_port(dev, slave, port); 2959 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 2960 2961 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos)) 2962 return -EPERM; 2963 2964 if ((0 == vlan) && (0 == qos)) 2965 vf_admin->default_vlan = MLX4_VGT; 2966 else 2967 vf_admin->default_vlan = vlan; 2968 vf_admin->default_qos = qos; 2969 2970 /* If rate was configured prior to VST, we saved the configured rate 2971 * in vf_admin->rate and now, if priority supported we enforce the QoS 2972 */ 2973 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) && 2974 vf_admin->tx_rate) 2975 vf_admin->qos_vport = slave; 2976 2977 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 2978 mlx4_info(dev, 2979 "updating vf %d port %d config will take effect on next VF restart\n", 2980 vf, port); 2981 return 0; 2982 } 2983 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan); 2984 2985 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate, 2986 int max_tx_rate) 2987 { 2988 int err; 2989 int slave; 2990 struct mlx4_vport_state *vf_admin; 2991 struct mlx4_priv *priv = mlx4_priv(dev); 2992 2993 if (!mlx4_is_master(dev) || 2994 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 2995 return -EPROTONOSUPPORT; 2996 2997 if (min_tx_rate) { 2998 mlx4_info(dev, "Minimum BW share not supported\n"); 2999 return -EPROTONOSUPPORT; 3000 } 3001 3002 slave = mlx4_get_slave_indx(dev, vf); 3003 if (slave < 0) 3004 return -EINVAL; 3005 3006 port = mlx4_slaves_closest_port(dev, slave, port); 3007 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3008 3009 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate); 3010 if (err) { 3011 mlx4_info(dev, "vf %d failed to set rate %d\n", vf, 3012 max_tx_rate); 3013 return err; 3014 } 3015 3016 vf_admin->tx_rate = max_tx_rate; 3017 /* if VF is not in supported mode (VST with supported prio), 3018 * we do not change vport configuration for its QPs, but save 3019 * the rate, so it will be enforced when it moves to supported 3020 * mode next time. 3021 */ 3022 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) { 3023 mlx4_info(dev, 3024 "rate set for VF %d when not in valid state\n", vf); 3025 3026 if (vf_admin->default_vlan != MLX4_VGT) 3027 mlx4_info(dev, "VST priority not supported by QoS\n"); 3028 else 3029 mlx4_info(dev, "VF in VGT mode (needed VST)\n"); 3030 3031 mlx4_info(dev, 3032 "rate %d take affect when VF moves to valid state\n", 3033 max_tx_rate); 3034 return 0; 3035 } 3036 3037 /* If user sets rate 0 assigning default vport for its QPs */ 3038 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT; 3039 3040 if (priv->mfunc.master.slave_state[slave].active && 3041 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) 3042 mlx4_master_immediate_activate_vlan_qos(priv, slave, port); 3043 3044 return 0; 3045 } 3046 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate); 3047 3048 /* mlx4_get_slave_default_vlan - 3049 * return true if VST ( default vlan) 3050 * if VST, will return vlan & qos (if not NULL) 3051 */ 3052 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, 3053 u16 *vlan, u8 *qos) 3054 { 3055 struct mlx4_vport_oper_state *vp_oper; 3056 struct mlx4_priv *priv; 3057 3058 priv = mlx4_priv(dev); 3059 port = mlx4_slaves_closest_port(dev, slave, port); 3060 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3061 3062 if (MLX4_VGT != vp_oper->state.default_vlan) { 3063 if (vlan) 3064 *vlan = vp_oper->state.default_vlan; 3065 if (qos) 3066 *qos = vp_oper->state.default_qos; 3067 return true; 3068 } 3069 return false; 3070 } 3071 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan); 3072 3073 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 3074 { 3075 struct mlx4_priv *priv = mlx4_priv(dev); 3076 struct mlx4_vport_state *s_info; 3077 int slave; 3078 3079 if ((!mlx4_is_master(dev)) || 3080 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM)) 3081 return -EPROTONOSUPPORT; 3082 3083 slave = mlx4_get_slave_indx(dev, vf); 3084 if (slave < 0) 3085 return -EINVAL; 3086 3087 port = mlx4_slaves_closest_port(dev, slave, port); 3088 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3089 s_info->spoofchk = setting; 3090 3091 return 0; 3092 } 3093 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk); 3094 3095 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf) 3096 { 3097 struct mlx4_priv *priv = mlx4_priv(dev); 3098 struct mlx4_vport_state *s_info; 3099 int slave; 3100 3101 if (!mlx4_is_master(dev)) 3102 return -EPROTONOSUPPORT; 3103 3104 slave = mlx4_get_slave_indx(dev, vf); 3105 if (slave < 0) 3106 return -EINVAL; 3107 3108 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3109 ivf->vf = vf; 3110 3111 /* need to convert it to a func */ 3112 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff); 3113 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff); 3114 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff); 3115 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff); 3116 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff); 3117 ivf->mac[5] = ((s_info->mac) & 0xff); 3118 3119 ivf->vlan = s_info->default_vlan; 3120 ivf->qos = s_info->default_qos; 3121 3122 if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info)) 3123 ivf->max_tx_rate = s_info->tx_rate; 3124 else 3125 ivf->max_tx_rate = 0; 3126 3127 ivf->min_tx_rate = 0; 3128 ivf->spoofchk = s_info->spoofchk; 3129 ivf->linkstate = s_info->link_state; 3130 3131 return 0; 3132 } 3133 EXPORT_SYMBOL_GPL(mlx4_get_vf_config); 3134 3135 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state) 3136 { 3137 struct mlx4_priv *priv = mlx4_priv(dev); 3138 struct mlx4_vport_state *s_info; 3139 int slave; 3140 u8 link_stat_event; 3141 3142 slave = mlx4_get_slave_indx(dev, vf); 3143 if (slave < 0) 3144 return -EINVAL; 3145 3146 port = mlx4_slaves_closest_port(dev, slave, port); 3147 switch (link_state) { 3148 case IFLA_VF_LINK_STATE_AUTO: 3149 /* get current link state */ 3150 if (!priv->sense.do_sense_port[port]) 3151 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3152 else 3153 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3154 break; 3155 3156 case IFLA_VF_LINK_STATE_ENABLE: 3157 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3158 break; 3159 3160 case IFLA_VF_LINK_STATE_DISABLE: 3161 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3162 break; 3163 3164 default: 3165 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n", 3166 link_state, slave, port); 3167 return -EINVAL; 3168 }; 3169 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3170 s_info->link_state = link_state; 3171 3172 /* send event */ 3173 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event); 3174 3175 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3176 mlx4_dbg(dev, 3177 "updating vf %d port %d no link state HW enforcment\n", 3178 vf, port); 3179 return 0; 3180 } 3181 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state); 3182 3183 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, 3184 struct mlx4_counter *counter_stats, int reset) 3185 { 3186 struct mlx4_cmd_mailbox *mailbox = NULL; 3187 struct mlx4_counter *tmp_counter; 3188 int err; 3189 u32 if_stat_in_mod; 3190 3191 if (!counter_stats) 3192 return -EINVAL; 3193 3194 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) 3195 return 0; 3196 3197 mailbox = mlx4_alloc_cmd_mailbox(dev); 3198 if (IS_ERR(mailbox)) 3199 return PTR_ERR(mailbox); 3200 3201 memset(mailbox->buf, 0, sizeof(struct mlx4_counter)); 3202 if_stat_in_mod = counter_index; 3203 if (reset) 3204 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET; 3205 err = mlx4_cmd_box(dev, 0, mailbox->dma, 3206 if_stat_in_mod, 0, 3207 MLX4_CMD_QUERY_IF_STAT, 3208 MLX4_CMD_TIME_CLASS_C, 3209 MLX4_CMD_NATIVE); 3210 if (err) { 3211 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n", 3212 __func__, counter_index); 3213 goto if_stat_out; 3214 } 3215 tmp_counter = (struct mlx4_counter *)mailbox->buf; 3216 counter_stats->counter_mode = tmp_counter->counter_mode; 3217 if (counter_stats->counter_mode == 0) { 3218 counter_stats->rx_frames = 3219 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) + 3220 be64_to_cpu(tmp_counter->rx_frames)); 3221 counter_stats->tx_frames = 3222 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) + 3223 be64_to_cpu(tmp_counter->tx_frames)); 3224 counter_stats->rx_bytes = 3225 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) + 3226 be64_to_cpu(tmp_counter->rx_bytes)); 3227 counter_stats->tx_bytes = 3228 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) + 3229 be64_to_cpu(tmp_counter->tx_bytes)); 3230 } 3231 3232 if_stat_out: 3233 mlx4_free_cmd_mailbox(dev, mailbox); 3234 3235 return err; 3236 } 3237 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); 3238 3239 int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, 3240 struct ifla_vf_stats *vf_stats) 3241 { 3242 struct mlx4_counter tmp_vf_stats; 3243 int slave; 3244 int err = 0; 3245 3246 if (!vf_stats) 3247 return -EINVAL; 3248 3249 if (!mlx4_is_master(dev)) 3250 return -EPROTONOSUPPORT; 3251 3252 slave = mlx4_get_slave_indx(dev, vf_idx); 3253 if (slave < 0) 3254 return -EINVAL; 3255 3256 port = mlx4_slaves_closest_port(dev, slave, port); 3257 err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats); 3258 if (!err && tmp_vf_stats.counter_mode == 0) { 3259 vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames); 3260 vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames); 3261 vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes); 3262 vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes); 3263 } 3264 3265 return err; 3266 } 3267 EXPORT_SYMBOL_GPL(mlx4_get_vf_stats); 3268 3269 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) 3270 { 3271 struct mlx4_priv *priv = mlx4_priv(dev); 3272 3273 if (slave < 1 || slave >= dev->num_slaves || 3274 port < 1 || port > MLX4_MAX_PORTS) 3275 return 0; 3276 3277 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] == 3278 MLX4_VF_SMI_ENABLED; 3279 } 3280 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled); 3281 3282 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port) 3283 { 3284 struct mlx4_priv *priv = mlx4_priv(dev); 3285 3286 if (slave == mlx4_master_func_num(dev)) 3287 return 1; 3288 3289 if (slave < 1 || slave >= dev->num_slaves || 3290 port < 1 || port > MLX4_MAX_PORTS) 3291 return 0; 3292 3293 return priv->mfunc.master.vf_admin[slave].enable_smi[port] == 3294 MLX4_VF_SMI_ENABLED; 3295 } 3296 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin); 3297 3298 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port, 3299 int enabled) 3300 { 3301 struct mlx4_priv *priv = mlx4_priv(dev); 3302 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 3303 &priv->dev, slave); 3304 int min_port = find_first_bit(actv_ports.ports, 3305 priv->dev.caps.num_ports) + 1; 3306 int max_port = min_port - 1 + 3307 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 3308 3309 if (slave == mlx4_master_func_num(dev)) 3310 return 0; 3311 3312 if (slave < 1 || slave >= dev->num_slaves || 3313 port < 1 || port > MLX4_MAX_PORTS || 3314 enabled < 0 || enabled > 1) 3315 return -EINVAL; 3316 3317 if (min_port == max_port && dev->caps.num_ports > 1) { 3318 mlx4_info(dev, "SMI access disallowed for single ported VFs\n"); 3319 return -EPROTONOSUPPORT; 3320 } 3321 3322 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled; 3323 return 0; 3324 } 3325 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin); 3326