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 #include <linux/etherdevice.h> 47 48 #include <asm/io.h> 49 50 #include "mlx4.h" 51 #include "fw.h" 52 #include "fw_qos.h" 53 #include "mlx4_stats.h" 54 55 #define CMD_POLL_TOKEN 0xffff 56 #define INBOX_MASK 0xffffffffffffff00ULL 57 58 #define CMD_CHAN_VER 1 59 #define CMD_CHAN_IF_REV 1 60 61 enum { 62 /* command completed successfully: */ 63 CMD_STAT_OK = 0x00, 64 /* Internal error (such as a bus error) occurred while processing command: */ 65 CMD_STAT_INTERNAL_ERR = 0x01, 66 /* Operation/command not supported or opcode modifier not supported: */ 67 CMD_STAT_BAD_OP = 0x02, 68 /* Parameter not supported or parameter out of range: */ 69 CMD_STAT_BAD_PARAM = 0x03, 70 /* System not enabled or bad system state: */ 71 CMD_STAT_BAD_SYS_STATE = 0x04, 72 /* Attempt to access reserved or unallocaterd resource: */ 73 CMD_STAT_BAD_RESOURCE = 0x05, 74 /* Requested resource is currently executing a command, or is otherwise busy: */ 75 CMD_STAT_RESOURCE_BUSY = 0x06, 76 /* Required capability exceeds device limits: */ 77 CMD_STAT_EXCEED_LIM = 0x08, 78 /* Resource is not in the appropriate state or ownership: */ 79 CMD_STAT_BAD_RES_STATE = 0x09, 80 /* Index out of range: */ 81 CMD_STAT_BAD_INDEX = 0x0a, 82 /* FW image corrupted: */ 83 CMD_STAT_BAD_NVMEM = 0x0b, 84 /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */ 85 CMD_STAT_ICM_ERROR = 0x0c, 86 /* Attempt to modify a QP/EE which is not in the presumed state: */ 87 CMD_STAT_BAD_QP_STATE = 0x10, 88 /* Bad segment parameters (Address/Size): */ 89 CMD_STAT_BAD_SEG_PARAM = 0x20, 90 /* Memory Region has Memory Windows bound to: */ 91 CMD_STAT_REG_BOUND = 0x21, 92 /* HCA local attached memory not present: */ 93 CMD_STAT_LAM_NOT_PRE = 0x22, 94 /* Bad management packet (silently discarded): */ 95 CMD_STAT_BAD_PKT = 0x30, 96 /* More outstanding CQEs in CQ than new CQ size: */ 97 CMD_STAT_BAD_SIZE = 0x40, 98 /* Multi Function device support required: */ 99 CMD_STAT_MULTI_FUNC_REQ = 0x50, 100 }; 101 102 enum { 103 HCR_IN_PARAM_OFFSET = 0x00, 104 HCR_IN_MODIFIER_OFFSET = 0x08, 105 HCR_OUT_PARAM_OFFSET = 0x0c, 106 HCR_TOKEN_OFFSET = 0x14, 107 HCR_STATUS_OFFSET = 0x18, 108 109 HCR_OPMOD_SHIFT = 12, 110 HCR_T_BIT = 21, 111 HCR_E_BIT = 22, 112 HCR_GO_BIT = 23 113 }; 114 115 enum { 116 GO_BIT_TIMEOUT_MSECS = 10000 117 }; 118 119 enum mlx4_vlan_transition { 120 MLX4_VLAN_TRANSITION_VST_VST = 0, 121 MLX4_VLAN_TRANSITION_VST_VGT = 1, 122 MLX4_VLAN_TRANSITION_VGT_VST = 2, 123 MLX4_VLAN_TRANSITION_VGT_VGT = 3, 124 }; 125 126 127 struct mlx4_cmd_context { 128 struct completion done; 129 int result; 130 int next; 131 u64 out_param; 132 u16 token; 133 u8 fw_status; 134 }; 135 136 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 137 struct mlx4_vhcr_cmd *in_vhcr); 138 139 static int mlx4_status_to_errno(u8 status) 140 { 141 static const int trans_table[] = { 142 [CMD_STAT_INTERNAL_ERR] = -EIO, 143 [CMD_STAT_BAD_OP] = -EPERM, 144 [CMD_STAT_BAD_PARAM] = -EINVAL, 145 [CMD_STAT_BAD_SYS_STATE] = -ENXIO, 146 [CMD_STAT_BAD_RESOURCE] = -EBADF, 147 [CMD_STAT_RESOURCE_BUSY] = -EBUSY, 148 [CMD_STAT_EXCEED_LIM] = -ENOMEM, 149 [CMD_STAT_BAD_RES_STATE] = -EBADF, 150 [CMD_STAT_BAD_INDEX] = -EBADF, 151 [CMD_STAT_BAD_NVMEM] = -EFAULT, 152 [CMD_STAT_ICM_ERROR] = -ENFILE, 153 [CMD_STAT_BAD_QP_STATE] = -EINVAL, 154 [CMD_STAT_BAD_SEG_PARAM] = -EFAULT, 155 [CMD_STAT_REG_BOUND] = -EBUSY, 156 [CMD_STAT_LAM_NOT_PRE] = -EAGAIN, 157 [CMD_STAT_BAD_PKT] = -EINVAL, 158 [CMD_STAT_BAD_SIZE] = -ENOMEM, 159 [CMD_STAT_MULTI_FUNC_REQ] = -EACCES, 160 }; 161 162 if (status >= ARRAY_SIZE(trans_table) || 163 (status != CMD_STAT_OK && trans_table[status] == 0)) 164 return -EIO; 165 166 return trans_table[status]; 167 } 168 169 static u8 mlx4_errno_to_status(int errno) 170 { 171 switch (errno) { 172 case -EPERM: 173 return CMD_STAT_BAD_OP; 174 case -EINVAL: 175 return CMD_STAT_BAD_PARAM; 176 case -ENXIO: 177 return CMD_STAT_BAD_SYS_STATE; 178 case -EBUSY: 179 return CMD_STAT_RESOURCE_BUSY; 180 case -ENOMEM: 181 return CMD_STAT_EXCEED_LIM; 182 case -ENFILE: 183 return CMD_STAT_ICM_ERROR; 184 default: 185 return CMD_STAT_INTERNAL_ERR; 186 } 187 } 188 189 static int mlx4_internal_err_ret_value(struct mlx4_dev *dev, u16 op, 190 u8 op_modifier) 191 { 192 switch (op) { 193 case MLX4_CMD_UNMAP_ICM: 194 case MLX4_CMD_UNMAP_ICM_AUX: 195 case MLX4_CMD_UNMAP_FA: 196 case MLX4_CMD_2RST_QP: 197 case MLX4_CMD_HW2SW_EQ: 198 case MLX4_CMD_HW2SW_CQ: 199 case MLX4_CMD_HW2SW_SRQ: 200 case MLX4_CMD_HW2SW_MPT: 201 case MLX4_CMD_CLOSE_HCA: 202 case MLX4_QP_FLOW_STEERING_DETACH: 203 case MLX4_CMD_FREE_RES: 204 case MLX4_CMD_CLOSE_PORT: 205 return CMD_STAT_OK; 206 207 case MLX4_CMD_QP_ATTACH: 208 /* On Detach case return success */ 209 if (op_modifier == 0) 210 return CMD_STAT_OK; 211 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 212 213 default: 214 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 215 } 216 } 217 218 static int mlx4_closing_cmd_fatal_error(u16 op, u8 fw_status) 219 { 220 /* Any error during the closing commands below is considered fatal */ 221 if (op == MLX4_CMD_CLOSE_HCA || 222 op == MLX4_CMD_HW2SW_EQ || 223 op == MLX4_CMD_HW2SW_CQ || 224 op == MLX4_CMD_2RST_QP || 225 op == MLX4_CMD_HW2SW_SRQ || 226 op == MLX4_CMD_SYNC_TPT || 227 op == MLX4_CMD_UNMAP_ICM || 228 op == MLX4_CMD_UNMAP_ICM_AUX || 229 op == MLX4_CMD_UNMAP_FA) 230 return 1; 231 /* Error on MLX4_CMD_HW2SW_MPT is fatal except when fw status equals 232 * CMD_STAT_REG_BOUND. 233 * This status indicates that memory region has memory windows bound to it 234 * which may result from invalid user space usage and is not fatal. 235 */ 236 if (op == MLX4_CMD_HW2SW_MPT && fw_status != CMD_STAT_REG_BOUND) 237 return 1; 238 return 0; 239 } 240 241 static int mlx4_cmd_reset_flow(struct mlx4_dev *dev, u16 op, u8 op_modifier, 242 int err) 243 { 244 /* Only if reset flow is really active return code is based on 245 * command, otherwise current error code is returned. 246 */ 247 if (mlx4_internal_err_reset) { 248 mlx4_enter_error_state(dev->persist); 249 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 250 } 251 252 return err; 253 } 254 255 static int comm_pending(struct mlx4_dev *dev) 256 { 257 struct mlx4_priv *priv = mlx4_priv(dev); 258 u32 status = readl(&priv->mfunc.comm->slave_read); 259 260 return (swab32(status) >> 31) != priv->cmd.comm_toggle; 261 } 262 263 static int mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param) 264 { 265 struct mlx4_priv *priv = mlx4_priv(dev); 266 u32 val; 267 268 /* To avoid writing to unknown addresses after the device state was 269 * changed to internal error and the function was rest, 270 * check the INTERNAL_ERROR flag which is updated under 271 * device_state_mutex lock. 272 */ 273 mutex_lock(&dev->persist->device_state_mutex); 274 275 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 276 mutex_unlock(&dev->persist->device_state_mutex); 277 return -EIO; 278 } 279 280 priv->cmd.comm_toggle ^= 1; 281 val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31); 282 __raw_writel((__force u32) cpu_to_be32(val), 283 &priv->mfunc.comm->slave_write); 284 mmiowb(); 285 mutex_unlock(&dev->persist->device_state_mutex); 286 return 0; 287 } 288 289 static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param, 290 unsigned long timeout) 291 { 292 struct mlx4_priv *priv = mlx4_priv(dev); 293 unsigned long end; 294 int err = 0; 295 int ret_from_pending = 0; 296 297 /* First, verify that the master reports correct status */ 298 if (comm_pending(dev)) { 299 mlx4_warn(dev, "Communication channel is not idle - my toggle is %d (cmd:0x%x)\n", 300 priv->cmd.comm_toggle, cmd); 301 return -EAGAIN; 302 } 303 304 /* Write command */ 305 down(&priv->cmd.poll_sem); 306 if (mlx4_comm_cmd_post(dev, cmd, param)) { 307 /* Only in case the device state is INTERNAL_ERROR, 308 * mlx4_comm_cmd_post returns with an error 309 */ 310 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 311 goto out; 312 } 313 314 end = msecs_to_jiffies(timeout) + jiffies; 315 while (comm_pending(dev) && time_before(jiffies, end)) 316 cond_resched(); 317 ret_from_pending = comm_pending(dev); 318 if (ret_from_pending) { 319 /* check if the slave is trying to boot in the middle of 320 * FLR process. The only non-zero result in the RESET command 321 * is MLX4_DELAY_RESET_SLAVE*/ 322 if ((MLX4_COMM_CMD_RESET == cmd)) { 323 err = MLX4_DELAY_RESET_SLAVE; 324 goto out; 325 } else { 326 mlx4_warn(dev, "Communication channel command 0x%x timed out\n", 327 cmd); 328 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 329 } 330 } 331 332 if (err) 333 mlx4_enter_error_state(dev->persist); 334 out: 335 up(&priv->cmd.poll_sem); 336 return err; 337 } 338 339 static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 vhcr_cmd, 340 u16 param, u16 op, unsigned long timeout) 341 { 342 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 343 struct mlx4_cmd_context *context; 344 unsigned long end; 345 int err = 0; 346 347 down(&cmd->event_sem); 348 349 spin_lock(&cmd->context_lock); 350 BUG_ON(cmd->free_head < 0); 351 context = &cmd->context[cmd->free_head]; 352 context->token += cmd->token_mask + 1; 353 cmd->free_head = context->next; 354 spin_unlock(&cmd->context_lock); 355 356 reinit_completion(&context->done); 357 358 if (mlx4_comm_cmd_post(dev, vhcr_cmd, param)) { 359 /* Only in case the device state is INTERNAL_ERROR, 360 * mlx4_comm_cmd_post returns with an error 361 */ 362 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 363 goto out; 364 } 365 366 if (!wait_for_completion_timeout(&context->done, 367 msecs_to_jiffies(timeout))) { 368 mlx4_warn(dev, "communication channel command 0x%x (op=0x%x) timed out\n", 369 vhcr_cmd, op); 370 goto out_reset; 371 } 372 373 err = context->result; 374 if (err && context->fw_status != CMD_STAT_MULTI_FUNC_REQ) { 375 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 376 vhcr_cmd, context->fw_status); 377 if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) 378 goto out_reset; 379 } 380 381 /* wait for comm channel ready 382 * this is necessary for prevention the race 383 * when switching between event to polling mode 384 * Skipping this section in case the device is in FATAL_ERROR state, 385 * In this state, no commands are sent via the comm channel until 386 * the device has returned from reset. 387 */ 388 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { 389 end = msecs_to_jiffies(timeout) + jiffies; 390 while (comm_pending(dev) && time_before(jiffies, end)) 391 cond_resched(); 392 } 393 goto out; 394 395 out_reset: 396 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 397 mlx4_enter_error_state(dev->persist); 398 out: 399 spin_lock(&cmd->context_lock); 400 context->next = cmd->free_head; 401 cmd->free_head = context - cmd->context; 402 spin_unlock(&cmd->context_lock); 403 404 up(&cmd->event_sem); 405 return err; 406 } 407 408 int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param, 409 u16 op, unsigned long timeout) 410 { 411 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 412 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 413 414 if (mlx4_priv(dev)->cmd.use_events) 415 return mlx4_comm_cmd_wait(dev, cmd, param, op, timeout); 416 return mlx4_comm_cmd_poll(dev, cmd, param, timeout); 417 } 418 419 static int cmd_pending(struct mlx4_dev *dev) 420 { 421 u32 status; 422 423 if (pci_channel_offline(dev->persist->pdev)) 424 return -EIO; 425 426 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET); 427 428 return (status & swab32(1 << HCR_GO_BIT)) || 429 (mlx4_priv(dev)->cmd.toggle == 430 !!(status & swab32(1 << HCR_T_BIT))); 431 } 432 433 static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param, 434 u32 in_modifier, u8 op_modifier, u16 op, u16 token, 435 int event) 436 { 437 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 438 u32 __iomem *hcr = cmd->hcr; 439 int ret = -EIO; 440 unsigned long end; 441 442 mutex_lock(&dev->persist->device_state_mutex); 443 /* To avoid writing to unknown addresses after the device state was 444 * changed to internal error and the chip was reset, 445 * check the INTERNAL_ERROR flag which is updated under 446 * device_state_mutex lock. 447 */ 448 if (pci_channel_offline(dev->persist->pdev) || 449 (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) { 450 /* 451 * Device is going through error recovery 452 * and cannot accept commands. 453 */ 454 goto out; 455 } 456 457 end = jiffies; 458 if (event) 459 end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS); 460 461 while (cmd_pending(dev)) { 462 if (pci_channel_offline(dev->persist->pdev)) { 463 /* 464 * Device is going through error recovery 465 * and cannot accept commands. 466 */ 467 goto out; 468 } 469 470 if (time_after_eq(jiffies, end)) { 471 mlx4_err(dev, "%s:cmd_pending failed\n", __func__); 472 goto out; 473 } 474 cond_resched(); 475 } 476 477 /* 478 * We use writel (instead of something like memcpy_toio) 479 * because writes of less than 32 bits to the HCR don't work 480 * (and some architectures such as ia64 implement memcpy_toio 481 * in terms of writeb). 482 */ 483 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0); 484 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1); 485 __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2); 486 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3); 487 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4); 488 __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5); 489 490 /* __raw_writel may not order writes. */ 491 wmb(); 492 493 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 494 (cmd->toggle << HCR_T_BIT) | 495 (event ? (1 << HCR_E_BIT) : 0) | 496 (op_modifier << HCR_OPMOD_SHIFT) | 497 op), hcr + 6); 498 499 /* 500 * Make sure that our HCR writes don't get mixed in with 501 * writes from another CPU starting a FW command. 502 */ 503 mmiowb(); 504 505 cmd->toggle = cmd->toggle ^ 1; 506 507 ret = 0; 508 509 out: 510 if (ret) 511 mlx4_warn(dev, "Could not post command 0x%x: ret=%d, in_param=0x%llx, in_mod=0x%x, op_mod=0x%x\n", 512 op, ret, in_param, in_modifier, op_modifier); 513 mutex_unlock(&dev->persist->device_state_mutex); 514 515 return ret; 516 } 517 518 static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 519 int out_is_imm, u32 in_modifier, u8 op_modifier, 520 u16 op, unsigned long timeout) 521 { 522 struct mlx4_priv *priv = mlx4_priv(dev); 523 struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr; 524 int ret; 525 526 mutex_lock(&priv->cmd.slave_cmd_mutex); 527 528 vhcr->in_param = cpu_to_be64(in_param); 529 vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0; 530 vhcr->in_modifier = cpu_to_be32(in_modifier); 531 vhcr->opcode = cpu_to_be16((((u16) op_modifier) << 12) | (op & 0xfff)); 532 vhcr->token = cpu_to_be16(CMD_POLL_TOKEN); 533 vhcr->status = 0; 534 vhcr->flags = !!(priv->cmd.use_events) << 6; 535 536 if (mlx4_is_master(dev)) { 537 ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr); 538 if (!ret) { 539 if (out_is_imm) { 540 if (out_param) 541 *out_param = 542 be64_to_cpu(vhcr->out_param); 543 else { 544 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 545 op); 546 vhcr->status = CMD_STAT_BAD_PARAM; 547 } 548 } 549 ret = mlx4_status_to_errno(vhcr->status); 550 } 551 if (ret && 552 dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 553 ret = mlx4_internal_err_ret_value(dev, op, op_modifier); 554 } else { 555 ret = mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_POST, 0, op, 556 MLX4_COMM_TIME + timeout); 557 if (!ret) { 558 if (out_is_imm) { 559 if (out_param) 560 *out_param = 561 be64_to_cpu(vhcr->out_param); 562 else { 563 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 564 op); 565 vhcr->status = CMD_STAT_BAD_PARAM; 566 } 567 } 568 ret = mlx4_status_to_errno(vhcr->status); 569 } else { 570 if (dev->persist->state & 571 MLX4_DEVICE_STATE_INTERNAL_ERROR) 572 ret = mlx4_internal_err_ret_value(dev, op, 573 op_modifier); 574 else 575 mlx4_err(dev, "failed execution of VHCR_POST command opcode 0x%x\n", op); 576 } 577 } 578 579 mutex_unlock(&priv->cmd.slave_cmd_mutex); 580 return ret; 581 } 582 583 static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 584 int out_is_imm, u32 in_modifier, u8 op_modifier, 585 u16 op, unsigned long timeout) 586 { 587 struct mlx4_priv *priv = mlx4_priv(dev); 588 void __iomem *hcr = priv->cmd.hcr; 589 int err = 0; 590 unsigned long end; 591 u32 stat; 592 593 down(&priv->cmd.poll_sem); 594 595 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 596 /* 597 * Device is going through error recovery 598 * and cannot accept commands. 599 */ 600 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 601 goto out; 602 } 603 604 if (out_is_imm && !out_param) { 605 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 606 op); 607 err = -EINVAL; 608 goto out; 609 } 610 611 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, 612 in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0); 613 if (err) 614 goto out_reset; 615 616 end = msecs_to_jiffies(timeout) + jiffies; 617 while (cmd_pending(dev) && time_before(jiffies, end)) { 618 if (pci_channel_offline(dev->persist->pdev)) { 619 /* 620 * Device is going through error recovery 621 * and cannot accept commands. 622 */ 623 err = -EIO; 624 goto out_reset; 625 } 626 627 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) { 628 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 629 goto out; 630 } 631 632 cond_resched(); 633 } 634 635 if (cmd_pending(dev)) { 636 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", 637 op); 638 err = -EIO; 639 goto out_reset; 640 } 641 642 if (out_is_imm) 643 *out_param = 644 (u64) be32_to_cpu((__force __be32) 645 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 | 646 (u64) be32_to_cpu((__force __be32) 647 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4)); 648 stat = be32_to_cpu((__force __be32) 649 __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24; 650 err = mlx4_status_to_errno(stat); 651 if (err) { 652 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 653 op, stat); 654 if (mlx4_closing_cmd_fatal_error(op, stat)) 655 goto out_reset; 656 goto out; 657 } 658 659 out_reset: 660 if (err) 661 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); 662 out: 663 up(&priv->cmd.poll_sem); 664 return err; 665 } 666 667 void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param) 668 { 669 struct mlx4_priv *priv = mlx4_priv(dev); 670 struct mlx4_cmd_context *context = 671 &priv->cmd.context[token & priv->cmd.token_mask]; 672 673 /* previously timed out command completing at long last */ 674 if (token != context->token) 675 return; 676 677 context->fw_status = status; 678 context->result = mlx4_status_to_errno(status); 679 context->out_param = out_param; 680 681 complete(&context->done); 682 } 683 684 static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 685 int out_is_imm, u32 in_modifier, u8 op_modifier, 686 u16 op, unsigned long timeout) 687 { 688 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd; 689 struct mlx4_cmd_context *context; 690 long ret_wait; 691 int err = 0; 692 693 down(&cmd->event_sem); 694 695 spin_lock(&cmd->context_lock); 696 BUG_ON(cmd->free_head < 0); 697 context = &cmd->context[cmd->free_head]; 698 context->token += cmd->token_mask + 1; 699 cmd->free_head = context->next; 700 spin_unlock(&cmd->context_lock); 701 702 if (out_is_imm && !out_param) { 703 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n", 704 op); 705 err = -EINVAL; 706 goto out; 707 } 708 709 reinit_completion(&context->done); 710 711 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0, 712 in_modifier, op_modifier, op, context->token, 1); 713 if (err) 714 goto out_reset; 715 716 if (op == MLX4_CMD_SENSE_PORT) { 717 ret_wait = 718 wait_for_completion_interruptible_timeout(&context->done, 719 msecs_to_jiffies(timeout)); 720 if (ret_wait < 0) { 721 context->fw_status = 0; 722 context->out_param = 0; 723 context->result = 0; 724 } 725 } else { 726 ret_wait = (long)wait_for_completion_timeout(&context->done, 727 msecs_to_jiffies(timeout)); 728 } 729 if (!ret_wait) { 730 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n", 731 op); 732 if (op == MLX4_CMD_NOP) { 733 err = -EBUSY; 734 goto out; 735 } else { 736 err = -EIO; 737 goto out_reset; 738 } 739 } 740 741 err = context->result; 742 if (err) { 743 /* Since we do not want to have this error message always 744 * displayed at driver start when there are ConnectX2 HCAs 745 * on the host, we deprecate the error message for this 746 * specific command/input_mod/opcode_mod/fw-status to be debug. 747 */ 748 if (op == MLX4_CMD_SET_PORT && 749 (in_modifier == 1 || in_modifier == 2) && 750 op_modifier == MLX4_SET_PORT_IB_OPCODE && 751 context->fw_status == CMD_STAT_BAD_SIZE) 752 mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n", 753 op, context->fw_status); 754 else 755 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n", 756 op, context->fw_status); 757 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 758 err = mlx4_internal_err_ret_value(dev, op, op_modifier); 759 else if (mlx4_closing_cmd_fatal_error(op, context->fw_status)) 760 goto out_reset; 761 762 goto out; 763 } 764 765 if (out_is_imm) 766 *out_param = context->out_param; 767 768 out_reset: 769 if (err) 770 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err); 771 out: 772 spin_lock(&cmd->context_lock); 773 context->next = cmd->free_head; 774 cmd->free_head = context - cmd->context; 775 spin_unlock(&cmd->context_lock); 776 777 up(&cmd->event_sem); 778 return err; 779 } 780 781 int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param, 782 int out_is_imm, u32 in_modifier, u8 op_modifier, 783 u16 op, unsigned long timeout, int native) 784 { 785 if (pci_channel_offline(dev->persist->pdev)) 786 return mlx4_cmd_reset_flow(dev, op, op_modifier, -EIO); 787 788 if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) { 789 int ret; 790 791 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) 792 return mlx4_internal_err_ret_value(dev, op, 793 op_modifier); 794 down_read(&mlx4_priv(dev)->cmd.switch_sem); 795 if (mlx4_priv(dev)->cmd.use_events) 796 ret = mlx4_cmd_wait(dev, in_param, out_param, 797 out_is_imm, in_modifier, 798 op_modifier, op, timeout); 799 else 800 ret = mlx4_cmd_poll(dev, in_param, out_param, 801 out_is_imm, in_modifier, 802 op_modifier, op, timeout); 803 804 up_read(&mlx4_priv(dev)->cmd.switch_sem); 805 return ret; 806 } 807 return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm, 808 in_modifier, op_modifier, op, timeout); 809 } 810 EXPORT_SYMBOL_GPL(__mlx4_cmd); 811 812 813 int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev) 814 { 815 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL, 816 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); 817 } 818 819 static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr, 820 int slave, u64 slave_addr, 821 int size, int is_read) 822 { 823 u64 in_param; 824 u64 out_param; 825 826 if ((slave_addr & 0xfff) | (master_addr & 0xfff) | 827 (slave & ~0x7f) | (size & 0xff)) { 828 mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx master_addr:0x%llx slave_id:%d size:%d\n", 829 slave_addr, master_addr, slave, size); 830 return -EINVAL; 831 } 832 833 if (is_read) { 834 in_param = (u64) slave | slave_addr; 835 out_param = (u64) dev->caps.function | master_addr; 836 } else { 837 in_param = (u64) dev->caps.function | master_addr; 838 out_param = (u64) slave | slave_addr; 839 } 840 841 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0, 842 MLX4_CMD_ACCESS_MEM, 843 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 844 } 845 846 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey, 847 struct mlx4_cmd_mailbox *inbox, 848 struct mlx4_cmd_mailbox *outbox) 849 { 850 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf); 851 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf); 852 int err; 853 int i; 854 855 if (index & 0x1f) 856 return -EINVAL; 857 858 in_mad->attr_mod = cpu_to_be32(index / 32); 859 860 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3, 861 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C, 862 MLX4_CMD_NATIVE); 863 if (err) 864 return err; 865 866 for (i = 0; i < 32; ++i) 867 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]); 868 869 return err; 870 } 871 872 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table, 873 struct mlx4_cmd_mailbox *inbox, 874 struct mlx4_cmd_mailbox *outbox) 875 { 876 int i; 877 int err; 878 879 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) { 880 err = query_pkey_block(dev, port, i, table + i, inbox, outbox); 881 if (err) 882 return err; 883 } 884 885 return 0; 886 } 887 #define PORT_CAPABILITY_LOCATION_IN_SMP 20 888 #define PORT_STATE_OFFSET 32 889 890 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf) 891 { 892 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP) 893 return IB_PORT_ACTIVE; 894 else 895 return IB_PORT_DOWN; 896 } 897 898 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave, 899 struct mlx4_vhcr *vhcr, 900 struct mlx4_cmd_mailbox *inbox, 901 struct mlx4_cmd_mailbox *outbox, 902 struct mlx4_cmd_info *cmd) 903 { 904 struct ib_smp *smp = inbox->buf; 905 u32 index; 906 u8 port, slave_port; 907 u8 opcode_modifier; 908 u16 *table; 909 int err; 910 int vidx, pidx; 911 int network_view; 912 struct mlx4_priv *priv = mlx4_priv(dev); 913 struct ib_smp *outsmp = outbox->buf; 914 __be16 *outtab = (__be16 *)(outsmp->data); 915 __be32 slave_cap_mask; 916 __be64 slave_node_guid; 917 918 slave_port = vhcr->in_modifier; 919 port = mlx4_slave_convert_port(dev, slave, slave_port); 920 921 /* network-view bit is for driver use only, and should not be passed to FW */ 922 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */ 923 network_view = !!(vhcr->op_modifier & 0x8); 924 925 if (smp->base_version == 1 && 926 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 927 smp->class_version == 1) { 928 /* host view is paravirtualized */ 929 if (!network_view && smp->method == IB_MGMT_METHOD_GET) { 930 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) { 931 index = be32_to_cpu(smp->attr_mod); 932 if (port < 1 || port > dev->caps.num_ports) 933 return -EINVAL; 934 table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1, 935 sizeof(*table) * 32, GFP_KERNEL); 936 937 if (!table) 938 return -ENOMEM; 939 /* need to get the full pkey table because the paravirtualized 940 * pkeys may be scattered among several pkey blocks. 941 */ 942 err = get_full_pkey_table(dev, port, table, inbox, outbox); 943 if (!err) { 944 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) { 945 pidx = priv->virt2phys_pkey[slave][port - 1][vidx]; 946 outtab[vidx % 32] = cpu_to_be16(table[pidx]); 947 } 948 } 949 kfree(table); 950 return err; 951 } 952 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) { 953 /*get the slave specific caps:*/ 954 /*do the command */ 955 smp->attr_mod = cpu_to_be32(port); 956 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 957 port, opcode_modifier, 958 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 959 /* modify the response for slaves */ 960 if (!err && slave != mlx4_master_func_num(dev)) { 961 u8 *state = outsmp->data + PORT_STATE_OFFSET; 962 963 *state = (*state & 0xf0) | vf_port_state(dev, port, slave); 964 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port]; 965 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4); 966 } 967 return err; 968 } 969 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) { 970 __be64 guid = mlx4_get_admin_guid(dev, slave, 971 port); 972 973 /* set the PF admin guid to the FW/HW burned 974 * GUID, if it wasn't yet set 975 */ 976 if (slave == 0 && guid == 0) { 977 smp->attr_mod = 0; 978 err = mlx4_cmd_box(dev, 979 inbox->dma, 980 outbox->dma, 981 vhcr->in_modifier, 982 opcode_modifier, 983 vhcr->op, 984 MLX4_CMD_TIME_CLASS_C, 985 MLX4_CMD_NATIVE); 986 if (err) 987 return err; 988 mlx4_set_admin_guid(dev, 989 *(__be64 *)outsmp-> 990 data, slave, port); 991 } else { 992 memcpy(outsmp->data, &guid, 8); 993 } 994 995 /* clean all other gids */ 996 memset(outsmp->data + 8, 0, 56); 997 return 0; 998 } 999 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) { 1000 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1001 port, opcode_modifier, 1002 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1003 if (!err) { 1004 slave_node_guid = mlx4_get_slave_node_guid(dev, slave); 1005 memcpy(outsmp->data + 12, &slave_node_guid, 8); 1006 } 1007 return err; 1008 } 1009 } 1010 } 1011 1012 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs. 1013 * These are the MADs used by ib verbs (such as ib_query_gids). 1014 */ 1015 if (slave != mlx4_master_func_num(dev) && 1016 !mlx4_vf_smi_enabled(dev, slave, port)) { 1017 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED && 1018 smp->method == IB_MGMT_METHOD_GET) || network_view) { 1019 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", 1020 slave, smp->mgmt_class, smp->method, 1021 network_view ? "Network" : "Host", 1022 be16_to_cpu(smp->attr_id)); 1023 return -EPERM; 1024 } 1025 } 1026 1027 return mlx4_cmd_box(dev, inbox->dma, outbox->dma, 1028 vhcr->in_modifier, opcode_modifier, 1029 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 1030 } 1031 1032 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave, 1033 struct mlx4_vhcr *vhcr, 1034 struct mlx4_cmd_mailbox *inbox, 1035 struct mlx4_cmd_mailbox *outbox, 1036 struct mlx4_cmd_info *cmd) 1037 { 1038 return -EPERM; 1039 } 1040 1041 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave, 1042 struct mlx4_vhcr *vhcr, 1043 struct mlx4_cmd_mailbox *inbox, 1044 struct mlx4_cmd_mailbox *outbox, 1045 struct mlx4_cmd_info *cmd) 1046 { 1047 u64 in_param; 1048 u64 out_param; 1049 int err; 1050 1051 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param; 1052 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param; 1053 if (cmd->encode_slave_id) { 1054 in_param &= 0xffffffffffffff00ll; 1055 in_param |= slave; 1056 } 1057 1058 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm, 1059 vhcr->in_modifier, vhcr->op_modifier, vhcr->op, 1060 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 1061 1062 if (cmd->out_is_imm) 1063 vhcr->out_param = out_param; 1064 1065 return err; 1066 } 1067 1068 static struct mlx4_cmd_info cmd_info[] = { 1069 { 1070 .opcode = MLX4_CMD_QUERY_FW, 1071 .has_inbox = false, 1072 .has_outbox = true, 1073 .out_is_imm = false, 1074 .encode_slave_id = false, 1075 .verify = NULL, 1076 .wrapper = mlx4_QUERY_FW_wrapper 1077 }, 1078 { 1079 .opcode = MLX4_CMD_QUERY_HCA, 1080 .has_inbox = false, 1081 .has_outbox = true, 1082 .out_is_imm = false, 1083 .encode_slave_id = false, 1084 .verify = NULL, 1085 .wrapper = NULL 1086 }, 1087 { 1088 .opcode = MLX4_CMD_QUERY_DEV_CAP, 1089 .has_inbox = false, 1090 .has_outbox = true, 1091 .out_is_imm = false, 1092 .encode_slave_id = false, 1093 .verify = NULL, 1094 .wrapper = mlx4_QUERY_DEV_CAP_wrapper 1095 }, 1096 { 1097 .opcode = MLX4_CMD_QUERY_FUNC_CAP, 1098 .has_inbox = false, 1099 .has_outbox = true, 1100 .out_is_imm = false, 1101 .encode_slave_id = false, 1102 .verify = NULL, 1103 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper 1104 }, 1105 { 1106 .opcode = MLX4_CMD_QUERY_ADAPTER, 1107 .has_inbox = false, 1108 .has_outbox = true, 1109 .out_is_imm = false, 1110 .encode_slave_id = false, 1111 .verify = NULL, 1112 .wrapper = NULL 1113 }, 1114 { 1115 .opcode = MLX4_CMD_INIT_PORT, 1116 .has_inbox = false, 1117 .has_outbox = false, 1118 .out_is_imm = false, 1119 .encode_slave_id = false, 1120 .verify = NULL, 1121 .wrapper = mlx4_INIT_PORT_wrapper 1122 }, 1123 { 1124 .opcode = MLX4_CMD_CLOSE_PORT, 1125 .has_inbox = false, 1126 .has_outbox = false, 1127 .out_is_imm = false, 1128 .encode_slave_id = false, 1129 .verify = NULL, 1130 .wrapper = mlx4_CLOSE_PORT_wrapper 1131 }, 1132 { 1133 .opcode = MLX4_CMD_QUERY_PORT, 1134 .has_inbox = false, 1135 .has_outbox = true, 1136 .out_is_imm = false, 1137 .encode_slave_id = false, 1138 .verify = NULL, 1139 .wrapper = mlx4_QUERY_PORT_wrapper 1140 }, 1141 { 1142 .opcode = MLX4_CMD_SET_PORT, 1143 .has_inbox = true, 1144 .has_outbox = false, 1145 .out_is_imm = false, 1146 .encode_slave_id = false, 1147 .verify = NULL, 1148 .wrapper = mlx4_SET_PORT_wrapper 1149 }, 1150 { 1151 .opcode = MLX4_CMD_MAP_EQ, 1152 .has_inbox = false, 1153 .has_outbox = false, 1154 .out_is_imm = false, 1155 .encode_slave_id = false, 1156 .verify = NULL, 1157 .wrapper = mlx4_MAP_EQ_wrapper 1158 }, 1159 { 1160 .opcode = MLX4_CMD_SW2HW_EQ, 1161 .has_inbox = true, 1162 .has_outbox = false, 1163 .out_is_imm = false, 1164 .encode_slave_id = true, 1165 .verify = NULL, 1166 .wrapper = mlx4_SW2HW_EQ_wrapper 1167 }, 1168 { 1169 .opcode = MLX4_CMD_HW_HEALTH_CHECK, 1170 .has_inbox = false, 1171 .has_outbox = false, 1172 .out_is_imm = false, 1173 .encode_slave_id = false, 1174 .verify = NULL, 1175 .wrapper = NULL 1176 }, 1177 { 1178 .opcode = MLX4_CMD_NOP, 1179 .has_inbox = false, 1180 .has_outbox = false, 1181 .out_is_imm = false, 1182 .encode_slave_id = false, 1183 .verify = NULL, 1184 .wrapper = NULL 1185 }, 1186 { 1187 .opcode = MLX4_CMD_CONFIG_DEV, 1188 .has_inbox = false, 1189 .has_outbox = true, 1190 .out_is_imm = false, 1191 .encode_slave_id = false, 1192 .verify = NULL, 1193 .wrapper = mlx4_CONFIG_DEV_wrapper 1194 }, 1195 { 1196 .opcode = MLX4_CMD_ALLOC_RES, 1197 .has_inbox = false, 1198 .has_outbox = false, 1199 .out_is_imm = true, 1200 .encode_slave_id = false, 1201 .verify = NULL, 1202 .wrapper = mlx4_ALLOC_RES_wrapper 1203 }, 1204 { 1205 .opcode = MLX4_CMD_FREE_RES, 1206 .has_inbox = false, 1207 .has_outbox = false, 1208 .out_is_imm = false, 1209 .encode_slave_id = false, 1210 .verify = NULL, 1211 .wrapper = mlx4_FREE_RES_wrapper 1212 }, 1213 { 1214 .opcode = MLX4_CMD_SW2HW_MPT, 1215 .has_inbox = true, 1216 .has_outbox = false, 1217 .out_is_imm = false, 1218 .encode_slave_id = true, 1219 .verify = NULL, 1220 .wrapper = mlx4_SW2HW_MPT_wrapper 1221 }, 1222 { 1223 .opcode = MLX4_CMD_QUERY_MPT, 1224 .has_inbox = false, 1225 .has_outbox = true, 1226 .out_is_imm = false, 1227 .encode_slave_id = false, 1228 .verify = NULL, 1229 .wrapper = mlx4_QUERY_MPT_wrapper 1230 }, 1231 { 1232 .opcode = MLX4_CMD_HW2SW_MPT, 1233 .has_inbox = false, 1234 .has_outbox = false, 1235 .out_is_imm = false, 1236 .encode_slave_id = false, 1237 .verify = NULL, 1238 .wrapper = mlx4_HW2SW_MPT_wrapper 1239 }, 1240 { 1241 .opcode = MLX4_CMD_READ_MTT, 1242 .has_inbox = false, 1243 .has_outbox = true, 1244 .out_is_imm = false, 1245 .encode_slave_id = false, 1246 .verify = NULL, 1247 .wrapper = NULL 1248 }, 1249 { 1250 .opcode = MLX4_CMD_WRITE_MTT, 1251 .has_inbox = true, 1252 .has_outbox = false, 1253 .out_is_imm = false, 1254 .encode_slave_id = false, 1255 .verify = NULL, 1256 .wrapper = mlx4_WRITE_MTT_wrapper 1257 }, 1258 { 1259 .opcode = MLX4_CMD_SYNC_TPT, 1260 .has_inbox = true, 1261 .has_outbox = false, 1262 .out_is_imm = false, 1263 .encode_slave_id = false, 1264 .verify = NULL, 1265 .wrapper = NULL 1266 }, 1267 { 1268 .opcode = MLX4_CMD_HW2SW_EQ, 1269 .has_inbox = false, 1270 .has_outbox = false, 1271 .out_is_imm = false, 1272 .encode_slave_id = true, 1273 .verify = NULL, 1274 .wrapper = mlx4_HW2SW_EQ_wrapper 1275 }, 1276 { 1277 .opcode = MLX4_CMD_QUERY_EQ, 1278 .has_inbox = false, 1279 .has_outbox = true, 1280 .out_is_imm = false, 1281 .encode_slave_id = true, 1282 .verify = NULL, 1283 .wrapper = mlx4_QUERY_EQ_wrapper 1284 }, 1285 { 1286 .opcode = MLX4_CMD_SW2HW_CQ, 1287 .has_inbox = true, 1288 .has_outbox = false, 1289 .out_is_imm = false, 1290 .encode_slave_id = true, 1291 .verify = NULL, 1292 .wrapper = mlx4_SW2HW_CQ_wrapper 1293 }, 1294 { 1295 .opcode = MLX4_CMD_HW2SW_CQ, 1296 .has_inbox = false, 1297 .has_outbox = false, 1298 .out_is_imm = false, 1299 .encode_slave_id = false, 1300 .verify = NULL, 1301 .wrapper = mlx4_HW2SW_CQ_wrapper 1302 }, 1303 { 1304 .opcode = MLX4_CMD_QUERY_CQ, 1305 .has_inbox = false, 1306 .has_outbox = true, 1307 .out_is_imm = false, 1308 .encode_slave_id = false, 1309 .verify = NULL, 1310 .wrapper = mlx4_QUERY_CQ_wrapper 1311 }, 1312 { 1313 .opcode = MLX4_CMD_MODIFY_CQ, 1314 .has_inbox = true, 1315 .has_outbox = false, 1316 .out_is_imm = true, 1317 .encode_slave_id = false, 1318 .verify = NULL, 1319 .wrapper = mlx4_MODIFY_CQ_wrapper 1320 }, 1321 { 1322 .opcode = MLX4_CMD_SW2HW_SRQ, 1323 .has_inbox = true, 1324 .has_outbox = false, 1325 .out_is_imm = false, 1326 .encode_slave_id = true, 1327 .verify = NULL, 1328 .wrapper = mlx4_SW2HW_SRQ_wrapper 1329 }, 1330 { 1331 .opcode = MLX4_CMD_HW2SW_SRQ, 1332 .has_inbox = false, 1333 .has_outbox = false, 1334 .out_is_imm = false, 1335 .encode_slave_id = false, 1336 .verify = NULL, 1337 .wrapper = mlx4_HW2SW_SRQ_wrapper 1338 }, 1339 { 1340 .opcode = MLX4_CMD_QUERY_SRQ, 1341 .has_inbox = false, 1342 .has_outbox = true, 1343 .out_is_imm = false, 1344 .encode_slave_id = false, 1345 .verify = NULL, 1346 .wrapper = mlx4_QUERY_SRQ_wrapper 1347 }, 1348 { 1349 .opcode = MLX4_CMD_ARM_SRQ, 1350 .has_inbox = false, 1351 .has_outbox = false, 1352 .out_is_imm = false, 1353 .encode_slave_id = false, 1354 .verify = NULL, 1355 .wrapper = mlx4_ARM_SRQ_wrapper 1356 }, 1357 { 1358 .opcode = MLX4_CMD_RST2INIT_QP, 1359 .has_inbox = true, 1360 .has_outbox = false, 1361 .out_is_imm = false, 1362 .encode_slave_id = true, 1363 .verify = NULL, 1364 .wrapper = mlx4_RST2INIT_QP_wrapper 1365 }, 1366 { 1367 .opcode = MLX4_CMD_INIT2INIT_QP, 1368 .has_inbox = true, 1369 .has_outbox = false, 1370 .out_is_imm = false, 1371 .encode_slave_id = false, 1372 .verify = NULL, 1373 .wrapper = mlx4_INIT2INIT_QP_wrapper 1374 }, 1375 { 1376 .opcode = MLX4_CMD_INIT2RTR_QP, 1377 .has_inbox = true, 1378 .has_outbox = false, 1379 .out_is_imm = false, 1380 .encode_slave_id = false, 1381 .verify = NULL, 1382 .wrapper = mlx4_INIT2RTR_QP_wrapper 1383 }, 1384 { 1385 .opcode = MLX4_CMD_RTR2RTS_QP, 1386 .has_inbox = true, 1387 .has_outbox = false, 1388 .out_is_imm = false, 1389 .encode_slave_id = false, 1390 .verify = NULL, 1391 .wrapper = mlx4_RTR2RTS_QP_wrapper 1392 }, 1393 { 1394 .opcode = MLX4_CMD_RTS2RTS_QP, 1395 .has_inbox = true, 1396 .has_outbox = false, 1397 .out_is_imm = false, 1398 .encode_slave_id = false, 1399 .verify = NULL, 1400 .wrapper = mlx4_RTS2RTS_QP_wrapper 1401 }, 1402 { 1403 .opcode = MLX4_CMD_SQERR2RTS_QP, 1404 .has_inbox = true, 1405 .has_outbox = false, 1406 .out_is_imm = false, 1407 .encode_slave_id = false, 1408 .verify = NULL, 1409 .wrapper = mlx4_SQERR2RTS_QP_wrapper 1410 }, 1411 { 1412 .opcode = MLX4_CMD_2ERR_QP, 1413 .has_inbox = false, 1414 .has_outbox = false, 1415 .out_is_imm = false, 1416 .encode_slave_id = false, 1417 .verify = NULL, 1418 .wrapper = mlx4_GEN_QP_wrapper 1419 }, 1420 { 1421 .opcode = MLX4_CMD_RTS2SQD_QP, 1422 .has_inbox = false, 1423 .has_outbox = false, 1424 .out_is_imm = false, 1425 .encode_slave_id = false, 1426 .verify = NULL, 1427 .wrapper = mlx4_GEN_QP_wrapper 1428 }, 1429 { 1430 .opcode = MLX4_CMD_SQD2SQD_QP, 1431 .has_inbox = true, 1432 .has_outbox = false, 1433 .out_is_imm = false, 1434 .encode_slave_id = false, 1435 .verify = NULL, 1436 .wrapper = mlx4_SQD2SQD_QP_wrapper 1437 }, 1438 { 1439 .opcode = MLX4_CMD_SQD2RTS_QP, 1440 .has_inbox = true, 1441 .has_outbox = false, 1442 .out_is_imm = false, 1443 .encode_slave_id = false, 1444 .verify = NULL, 1445 .wrapper = mlx4_SQD2RTS_QP_wrapper 1446 }, 1447 { 1448 .opcode = MLX4_CMD_2RST_QP, 1449 .has_inbox = false, 1450 .has_outbox = false, 1451 .out_is_imm = false, 1452 .encode_slave_id = false, 1453 .verify = NULL, 1454 .wrapper = mlx4_2RST_QP_wrapper 1455 }, 1456 { 1457 .opcode = MLX4_CMD_QUERY_QP, 1458 .has_inbox = false, 1459 .has_outbox = true, 1460 .out_is_imm = false, 1461 .encode_slave_id = false, 1462 .verify = NULL, 1463 .wrapper = mlx4_GEN_QP_wrapper 1464 }, 1465 { 1466 .opcode = MLX4_CMD_SUSPEND_QP, 1467 .has_inbox = false, 1468 .has_outbox = false, 1469 .out_is_imm = false, 1470 .encode_slave_id = false, 1471 .verify = NULL, 1472 .wrapper = mlx4_GEN_QP_wrapper 1473 }, 1474 { 1475 .opcode = MLX4_CMD_UNSUSPEND_QP, 1476 .has_inbox = false, 1477 .has_outbox = false, 1478 .out_is_imm = false, 1479 .encode_slave_id = false, 1480 .verify = NULL, 1481 .wrapper = mlx4_GEN_QP_wrapper 1482 }, 1483 { 1484 .opcode = MLX4_CMD_UPDATE_QP, 1485 .has_inbox = true, 1486 .has_outbox = false, 1487 .out_is_imm = false, 1488 .encode_slave_id = false, 1489 .verify = NULL, 1490 .wrapper = mlx4_UPDATE_QP_wrapper 1491 }, 1492 { 1493 .opcode = MLX4_CMD_GET_OP_REQ, 1494 .has_inbox = false, 1495 .has_outbox = false, 1496 .out_is_imm = false, 1497 .encode_slave_id = false, 1498 .verify = NULL, 1499 .wrapper = mlx4_CMD_EPERM_wrapper, 1500 }, 1501 { 1502 .opcode = MLX4_CMD_ALLOCATE_VPP, 1503 .has_inbox = false, 1504 .has_outbox = true, 1505 .out_is_imm = false, 1506 .encode_slave_id = false, 1507 .verify = NULL, 1508 .wrapper = mlx4_CMD_EPERM_wrapper, 1509 }, 1510 { 1511 .opcode = MLX4_CMD_SET_VPORT_QOS, 1512 .has_inbox = false, 1513 .has_outbox = true, 1514 .out_is_imm = false, 1515 .encode_slave_id = false, 1516 .verify = NULL, 1517 .wrapper = mlx4_CMD_EPERM_wrapper, 1518 }, 1519 { 1520 .opcode = MLX4_CMD_CONF_SPECIAL_QP, 1521 .has_inbox = false, 1522 .has_outbox = false, 1523 .out_is_imm = false, 1524 .encode_slave_id = false, 1525 .verify = NULL, /* XXX verify: only demux can do this */ 1526 .wrapper = NULL 1527 }, 1528 { 1529 .opcode = MLX4_CMD_MAD_IFC, 1530 .has_inbox = true, 1531 .has_outbox = true, 1532 .out_is_imm = false, 1533 .encode_slave_id = false, 1534 .verify = NULL, 1535 .wrapper = mlx4_MAD_IFC_wrapper 1536 }, 1537 { 1538 .opcode = MLX4_CMD_MAD_DEMUX, 1539 .has_inbox = false, 1540 .has_outbox = false, 1541 .out_is_imm = false, 1542 .encode_slave_id = false, 1543 .verify = NULL, 1544 .wrapper = mlx4_CMD_EPERM_wrapper 1545 }, 1546 { 1547 .opcode = MLX4_CMD_QUERY_IF_STAT, 1548 .has_inbox = false, 1549 .has_outbox = true, 1550 .out_is_imm = false, 1551 .encode_slave_id = false, 1552 .verify = NULL, 1553 .wrapper = mlx4_QUERY_IF_STAT_wrapper 1554 }, 1555 { 1556 .opcode = MLX4_CMD_ACCESS_REG, 1557 .has_inbox = true, 1558 .has_outbox = true, 1559 .out_is_imm = false, 1560 .encode_slave_id = false, 1561 .verify = NULL, 1562 .wrapper = mlx4_ACCESS_REG_wrapper, 1563 }, 1564 { 1565 .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE, 1566 .has_inbox = false, 1567 .has_outbox = false, 1568 .out_is_imm = false, 1569 .encode_slave_id = false, 1570 .verify = NULL, 1571 .wrapper = mlx4_CMD_EPERM_wrapper, 1572 }, 1573 /* Native multicast commands are not available for guests */ 1574 { 1575 .opcode = MLX4_CMD_QP_ATTACH, 1576 .has_inbox = true, 1577 .has_outbox = false, 1578 .out_is_imm = false, 1579 .encode_slave_id = false, 1580 .verify = NULL, 1581 .wrapper = mlx4_QP_ATTACH_wrapper 1582 }, 1583 { 1584 .opcode = MLX4_CMD_PROMISC, 1585 .has_inbox = false, 1586 .has_outbox = false, 1587 .out_is_imm = false, 1588 .encode_slave_id = false, 1589 .verify = NULL, 1590 .wrapper = mlx4_PROMISC_wrapper 1591 }, 1592 /* Ethernet specific commands */ 1593 { 1594 .opcode = MLX4_CMD_SET_VLAN_FLTR, 1595 .has_inbox = true, 1596 .has_outbox = false, 1597 .out_is_imm = false, 1598 .encode_slave_id = false, 1599 .verify = NULL, 1600 .wrapper = mlx4_SET_VLAN_FLTR_wrapper 1601 }, 1602 { 1603 .opcode = MLX4_CMD_SET_MCAST_FLTR, 1604 .has_inbox = false, 1605 .has_outbox = false, 1606 .out_is_imm = false, 1607 .encode_slave_id = false, 1608 .verify = NULL, 1609 .wrapper = mlx4_SET_MCAST_FLTR_wrapper 1610 }, 1611 { 1612 .opcode = MLX4_CMD_DUMP_ETH_STATS, 1613 .has_inbox = false, 1614 .has_outbox = true, 1615 .out_is_imm = false, 1616 .encode_slave_id = false, 1617 .verify = NULL, 1618 .wrapper = mlx4_DUMP_ETH_STATS_wrapper 1619 }, 1620 { 1621 .opcode = MLX4_CMD_INFORM_FLR_DONE, 1622 .has_inbox = false, 1623 .has_outbox = false, 1624 .out_is_imm = false, 1625 .encode_slave_id = false, 1626 .verify = NULL, 1627 .wrapper = NULL 1628 }, 1629 /* flow steering commands */ 1630 { 1631 .opcode = MLX4_QP_FLOW_STEERING_ATTACH, 1632 .has_inbox = true, 1633 .has_outbox = false, 1634 .out_is_imm = true, 1635 .encode_slave_id = false, 1636 .verify = NULL, 1637 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper 1638 }, 1639 { 1640 .opcode = MLX4_QP_FLOW_STEERING_DETACH, 1641 .has_inbox = false, 1642 .has_outbox = false, 1643 .out_is_imm = false, 1644 .encode_slave_id = false, 1645 .verify = NULL, 1646 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper 1647 }, 1648 { 1649 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE, 1650 .has_inbox = false, 1651 .has_outbox = false, 1652 .out_is_imm = false, 1653 .encode_slave_id = false, 1654 .verify = NULL, 1655 .wrapper = mlx4_CMD_EPERM_wrapper 1656 }, 1657 { 1658 .opcode = MLX4_CMD_VIRT_PORT_MAP, 1659 .has_inbox = false, 1660 .has_outbox = false, 1661 .out_is_imm = false, 1662 .encode_slave_id = false, 1663 .verify = NULL, 1664 .wrapper = mlx4_CMD_EPERM_wrapper 1665 }, 1666 }; 1667 1668 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave, 1669 struct mlx4_vhcr_cmd *in_vhcr) 1670 { 1671 struct mlx4_priv *priv = mlx4_priv(dev); 1672 struct mlx4_cmd_info *cmd = NULL; 1673 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr; 1674 struct mlx4_vhcr *vhcr; 1675 struct mlx4_cmd_mailbox *inbox = NULL; 1676 struct mlx4_cmd_mailbox *outbox = NULL; 1677 u64 in_param; 1678 u64 out_param; 1679 int ret = 0; 1680 int i; 1681 int err = 0; 1682 1683 /* Create sw representation of Virtual HCR */ 1684 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL); 1685 if (!vhcr) 1686 return -ENOMEM; 1687 1688 /* DMA in the vHCR */ 1689 if (!in_vhcr) { 1690 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1691 priv->mfunc.master.slave_state[slave].vhcr_dma, 1692 ALIGN(sizeof(struct mlx4_vhcr_cmd), 1693 MLX4_ACCESS_MEM_ALIGN), 1); 1694 if (ret) { 1695 if (!(dev->persist->state & 1696 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1697 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n", 1698 __func__, ret); 1699 kfree(vhcr); 1700 return ret; 1701 } 1702 } 1703 1704 /* Fill SW VHCR fields */ 1705 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param); 1706 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param); 1707 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier); 1708 vhcr->token = be16_to_cpu(vhcr_cmd->token); 1709 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff; 1710 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12); 1711 vhcr->e_bit = vhcr_cmd->flags & (1 << 6); 1712 1713 /* Lookup command */ 1714 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) { 1715 if (vhcr->op == cmd_info[i].opcode) { 1716 cmd = &cmd_info[i]; 1717 break; 1718 } 1719 } 1720 if (!cmd) { 1721 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n", 1722 vhcr->op, slave); 1723 vhcr_cmd->status = CMD_STAT_BAD_PARAM; 1724 goto out_status; 1725 } 1726 1727 /* Read inbox */ 1728 if (cmd->has_inbox) { 1729 vhcr->in_param &= INBOX_MASK; 1730 inbox = mlx4_alloc_cmd_mailbox(dev); 1731 if (IS_ERR(inbox)) { 1732 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1733 inbox = NULL; 1734 goto out_status; 1735 } 1736 1737 ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave, 1738 vhcr->in_param, 1739 MLX4_MAILBOX_SIZE, 1); 1740 if (ret) { 1741 if (!(dev->persist->state & 1742 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1743 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n", 1744 __func__, cmd->opcode); 1745 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR; 1746 goto out_status; 1747 } 1748 } 1749 1750 /* Apply permission and bound checks if applicable */ 1751 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) { 1752 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n", 1753 vhcr->op, slave, vhcr->in_modifier); 1754 vhcr_cmd->status = CMD_STAT_BAD_OP; 1755 goto out_status; 1756 } 1757 1758 /* Allocate outbox */ 1759 if (cmd->has_outbox) { 1760 outbox = mlx4_alloc_cmd_mailbox(dev); 1761 if (IS_ERR(outbox)) { 1762 vhcr_cmd->status = CMD_STAT_BAD_SIZE; 1763 outbox = NULL; 1764 goto out_status; 1765 } 1766 } 1767 1768 /* Execute the command! */ 1769 if (cmd->wrapper) { 1770 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox, 1771 cmd); 1772 if (cmd->out_is_imm) 1773 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1774 } else { 1775 in_param = cmd->has_inbox ? (u64) inbox->dma : 1776 vhcr->in_param; 1777 out_param = cmd->has_outbox ? (u64) outbox->dma : 1778 vhcr->out_param; 1779 err = __mlx4_cmd(dev, in_param, &out_param, 1780 cmd->out_is_imm, vhcr->in_modifier, 1781 vhcr->op_modifier, vhcr->op, 1782 MLX4_CMD_TIME_CLASS_A, 1783 MLX4_CMD_NATIVE); 1784 1785 if (cmd->out_is_imm) { 1786 vhcr->out_param = out_param; 1787 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param); 1788 } 1789 } 1790 1791 if (err) { 1792 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1793 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n", 1794 vhcr->op, slave, vhcr->errno, err); 1795 vhcr_cmd->status = mlx4_errno_to_status(err); 1796 goto out_status; 1797 } 1798 1799 1800 /* Write outbox if command completed successfully */ 1801 if (cmd->has_outbox && !vhcr_cmd->status) { 1802 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave, 1803 vhcr->out_param, 1804 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED); 1805 if (ret) { 1806 /* If we failed to write back the outbox after the 1807 *command was successfully executed, we must fail this 1808 * slave, as it is now in undefined state */ 1809 if (!(dev->persist->state & 1810 MLX4_DEVICE_STATE_INTERNAL_ERROR)) 1811 mlx4_err(dev, "%s:Failed writing outbox\n", __func__); 1812 goto out; 1813 } 1814 } 1815 1816 out_status: 1817 /* DMA back vhcr result */ 1818 if (!in_vhcr) { 1819 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave, 1820 priv->mfunc.master.slave_state[slave].vhcr_dma, 1821 ALIGN(sizeof(struct mlx4_vhcr), 1822 MLX4_ACCESS_MEM_ALIGN), 1823 MLX4_CMD_WRAPPED); 1824 if (ret) 1825 mlx4_err(dev, "%s:Failed writing vhcr result\n", 1826 __func__); 1827 else if (vhcr->e_bit && 1828 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe)) 1829 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n", 1830 slave); 1831 } 1832 1833 out: 1834 kfree(vhcr); 1835 mlx4_free_cmd_mailbox(dev, inbox); 1836 mlx4_free_cmd_mailbox(dev, outbox); 1837 return ret; 1838 } 1839 1840 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv, 1841 int slave, int port) 1842 { 1843 struct mlx4_vport_oper_state *vp_oper; 1844 struct mlx4_vport_state *vp_admin; 1845 struct mlx4_vf_immed_vlan_work *work; 1846 struct mlx4_dev *dev = &(priv->dev); 1847 int err; 1848 int admin_vlan_ix = NO_INDX; 1849 1850 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 1851 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 1852 1853 if (vp_oper->state.default_vlan == vp_admin->default_vlan && 1854 vp_oper->state.default_qos == vp_admin->default_qos && 1855 vp_oper->state.vlan_proto == vp_admin->vlan_proto && 1856 vp_oper->state.link_state == vp_admin->link_state && 1857 vp_oper->state.qos_vport == vp_admin->qos_vport) 1858 return 0; 1859 1860 if (!(priv->mfunc.master.slave_state[slave].active && 1861 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) { 1862 /* even if the UPDATE_QP command isn't supported, we still want 1863 * to set this VF link according to the admin directive 1864 */ 1865 vp_oper->state.link_state = vp_admin->link_state; 1866 return -1; 1867 } 1868 1869 mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n", 1870 slave, port); 1871 mlx4_dbg(dev, "vlan %d QoS %d link down %d\n", 1872 vp_admin->default_vlan, vp_admin->default_qos, 1873 vp_admin->link_state); 1874 1875 work = kzalloc(sizeof(*work), GFP_KERNEL); 1876 if (!work) 1877 return -ENOMEM; 1878 1879 if (vp_oper->state.default_vlan != vp_admin->default_vlan) { 1880 if (MLX4_VGT != vp_admin->default_vlan) { 1881 err = __mlx4_register_vlan(&priv->dev, port, 1882 vp_admin->default_vlan, 1883 &admin_vlan_ix); 1884 if (err) { 1885 kfree(work); 1886 mlx4_warn(&priv->dev, 1887 "No vlan resources slave %d, port %d\n", 1888 slave, port); 1889 return err; 1890 } 1891 } else { 1892 admin_vlan_ix = NO_INDX; 1893 } 1894 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN; 1895 mlx4_dbg(&priv->dev, 1896 "alloc vlan %d idx %d slave %d port %d\n", 1897 (int)(vp_admin->default_vlan), 1898 admin_vlan_ix, slave, port); 1899 } 1900 1901 /* save original vlan ix and vlan id */ 1902 work->orig_vlan_id = vp_oper->state.default_vlan; 1903 work->orig_vlan_ix = vp_oper->vlan_idx; 1904 1905 /* handle new qos */ 1906 if (vp_oper->state.default_qos != vp_admin->default_qos) 1907 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS; 1908 1909 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN) 1910 vp_oper->vlan_idx = admin_vlan_ix; 1911 1912 vp_oper->state.default_vlan = vp_admin->default_vlan; 1913 vp_oper->state.default_qos = vp_admin->default_qos; 1914 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 1915 vp_oper->state.link_state = vp_admin->link_state; 1916 vp_oper->state.qos_vport = vp_admin->qos_vport; 1917 1918 if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE) 1919 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE; 1920 1921 /* iterate over QPs owned by this slave, using UPDATE_QP */ 1922 work->port = port; 1923 work->slave = slave; 1924 work->qos = vp_oper->state.default_qos; 1925 work->qos_vport = vp_oper->state.qos_vport; 1926 work->vlan_id = vp_oper->state.default_vlan; 1927 work->vlan_ix = vp_oper->vlan_idx; 1928 work->vlan_proto = vp_oper->state.vlan_proto; 1929 work->priv = priv; 1930 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler); 1931 queue_work(priv->mfunc.master.comm_wq, &work->work); 1932 1933 return 0; 1934 } 1935 1936 static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port) 1937 { 1938 struct mlx4_qos_manager *port_qos_ctl; 1939 struct mlx4_priv *priv = mlx4_priv(dev); 1940 1941 port_qos_ctl = &priv->mfunc.master.qos_ctl[port]; 1942 bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP); 1943 1944 /* Enable only default prio at PF init routine */ 1945 set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm); 1946 } 1947 1948 static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port) 1949 { 1950 int i; 1951 int err; 1952 int num_vfs; 1953 u16 availible_vpp; 1954 u8 vpp_param[MLX4_NUM_UP]; 1955 struct mlx4_qos_manager *port_qos; 1956 struct mlx4_priv *priv = mlx4_priv(dev); 1957 1958 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1959 if (err) { 1960 mlx4_info(dev, "Failed query availible VPPs\n"); 1961 return; 1962 } 1963 1964 port_qos = &priv->mfunc.master.qos_ctl[port]; 1965 num_vfs = (availible_vpp / 1966 bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP)); 1967 1968 for (i = 0; i < MLX4_NUM_UP; i++) { 1969 if (test_bit(i, port_qos->priority_bm)) 1970 vpp_param[i] = num_vfs; 1971 } 1972 1973 err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param); 1974 if (err) { 1975 mlx4_info(dev, "Failed allocating VPPs\n"); 1976 return; 1977 } 1978 1979 /* Query actual allocated VPP, just to make sure */ 1980 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param); 1981 if (err) { 1982 mlx4_info(dev, "Failed query availible VPPs\n"); 1983 return; 1984 } 1985 1986 port_qos->num_of_qos_vfs = num_vfs; 1987 mlx4_dbg(dev, "Port %d Availible VPPs %d\n", port, availible_vpp); 1988 1989 for (i = 0; i < MLX4_NUM_UP; i++) 1990 mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i, 1991 vpp_param[i]); 1992 } 1993 1994 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave) 1995 { 1996 int port, err; 1997 struct mlx4_vport_state *vp_admin; 1998 struct mlx4_vport_oper_state *vp_oper; 1999 struct mlx4_slave_state *slave_state = 2000 &priv->mfunc.master.slave_state[slave]; 2001 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2002 &priv->dev, slave); 2003 int min_port = find_first_bit(actv_ports.ports, 2004 priv->dev.caps.num_ports) + 1; 2005 int max_port = min_port - 1 + 2006 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2007 2008 for (port = min_port; port <= max_port; port++) { 2009 if (!test_bit(port - 1, actv_ports.ports)) 2010 continue; 2011 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2012 priv->mfunc.master.vf_admin[slave].enable_smi[port]; 2013 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2014 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 2015 if (vp_admin->vlan_proto != htons(ETH_P_8021AD) || 2016 slave_state->vst_qinq_supported) { 2017 vp_oper->state.vlan_proto = vp_admin->vlan_proto; 2018 vp_oper->state.default_vlan = vp_admin->default_vlan; 2019 vp_oper->state.default_qos = vp_admin->default_qos; 2020 } 2021 vp_oper->state.link_state = vp_admin->link_state; 2022 vp_oper->state.mac = vp_admin->mac; 2023 vp_oper->state.spoofchk = vp_admin->spoofchk; 2024 vp_oper->state.tx_rate = vp_admin->tx_rate; 2025 vp_oper->state.qos_vport = vp_admin->qos_vport; 2026 vp_oper->state.guid = vp_admin->guid; 2027 2028 if (MLX4_VGT != vp_admin->default_vlan) { 2029 err = __mlx4_register_vlan(&priv->dev, port, 2030 vp_admin->default_vlan, &(vp_oper->vlan_idx)); 2031 if (err) { 2032 vp_oper->vlan_idx = NO_INDX; 2033 vp_oper->state.default_vlan = MLX4_VGT; 2034 vp_oper->state.vlan_proto = htons(ETH_P_8021Q); 2035 mlx4_warn(&priv->dev, 2036 "No vlan resources slave %d, port %d\n", 2037 slave, port); 2038 return err; 2039 } 2040 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n", 2041 (int)(vp_oper->state.default_vlan), 2042 vp_oper->vlan_idx, slave, port); 2043 } 2044 if (vp_admin->spoofchk) { 2045 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev, 2046 port, 2047 vp_admin->mac); 2048 if (0 > vp_oper->mac_idx) { 2049 err = vp_oper->mac_idx; 2050 vp_oper->mac_idx = NO_INDX; 2051 mlx4_warn(&priv->dev, 2052 "No mac resources slave %d, port %d\n", 2053 slave, port); 2054 return err; 2055 } 2056 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n", 2057 vp_oper->state.mac, vp_oper->mac_idx, slave, port); 2058 } 2059 } 2060 return 0; 2061 } 2062 2063 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave) 2064 { 2065 int port; 2066 struct mlx4_vport_oper_state *vp_oper; 2067 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 2068 &priv->dev, slave); 2069 int min_port = find_first_bit(actv_ports.ports, 2070 priv->dev.caps.num_ports) + 1; 2071 int max_port = min_port - 1 + 2072 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 2073 2074 2075 for (port = min_port; port <= max_port; port++) { 2076 if (!test_bit(port - 1, actv_ports.ports)) 2077 continue; 2078 priv->mfunc.master.vf_oper[slave].smi_enabled[port] = 2079 MLX4_VF_SMI_DISABLED; 2080 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 2081 if (NO_INDX != vp_oper->vlan_idx) { 2082 __mlx4_unregister_vlan(&priv->dev, 2083 port, vp_oper->state.default_vlan); 2084 vp_oper->vlan_idx = NO_INDX; 2085 } 2086 if (NO_INDX != vp_oper->mac_idx) { 2087 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); 2088 vp_oper->mac_idx = NO_INDX; 2089 } 2090 } 2091 return; 2092 } 2093 2094 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd, 2095 u16 param, u8 toggle) 2096 { 2097 struct mlx4_priv *priv = mlx4_priv(dev); 2098 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2099 u32 reply; 2100 u8 is_going_down = 0; 2101 int i; 2102 unsigned long flags; 2103 2104 slave_state[slave].comm_toggle ^= 1; 2105 reply = (u32) slave_state[slave].comm_toggle << 31; 2106 if (toggle != slave_state[slave].comm_toggle) { 2107 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n", 2108 toggle, slave); 2109 goto reset_slave; 2110 } 2111 if (cmd == MLX4_COMM_CMD_RESET) { 2112 mlx4_warn(dev, "Received reset from slave:%d\n", slave); 2113 slave_state[slave].active = false; 2114 slave_state[slave].old_vlan_api = false; 2115 slave_state[slave].vst_qinq_supported = false; 2116 mlx4_master_deactivate_admin_state(priv, slave); 2117 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) { 2118 slave_state[slave].event_eq[i].eqn = -1; 2119 slave_state[slave].event_eq[i].token = 0; 2120 } 2121 /*check if we are in the middle of FLR process, 2122 if so return "retry" status to the slave*/ 2123 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) 2124 goto inform_slave_state; 2125 2126 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave); 2127 2128 /* write the version in the event field */ 2129 reply |= mlx4_comm_get_version(); 2130 2131 goto reset_slave; 2132 } 2133 /*command from slave in the middle of FLR*/ 2134 if (cmd != MLX4_COMM_CMD_RESET && 2135 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) { 2136 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n", 2137 slave, cmd); 2138 return; 2139 } 2140 2141 switch (cmd) { 2142 case MLX4_COMM_CMD_VHCR0: 2143 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET) 2144 goto reset_slave; 2145 slave_state[slave].vhcr_dma = ((u64) param) << 48; 2146 priv->mfunc.master.slave_state[slave].cookie = 0; 2147 break; 2148 case MLX4_COMM_CMD_VHCR1: 2149 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0) 2150 goto reset_slave; 2151 slave_state[slave].vhcr_dma |= ((u64) param) << 32; 2152 break; 2153 case MLX4_COMM_CMD_VHCR2: 2154 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1) 2155 goto reset_slave; 2156 slave_state[slave].vhcr_dma |= ((u64) param) << 16; 2157 break; 2158 case MLX4_COMM_CMD_VHCR_EN: 2159 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2) 2160 goto reset_slave; 2161 slave_state[slave].vhcr_dma |= param; 2162 if (mlx4_master_activate_admin_state(priv, slave)) 2163 goto reset_slave; 2164 slave_state[slave].active = true; 2165 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave); 2166 break; 2167 case MLX4_COMM_CMD_VHCR_POST: 2168 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) && 2169 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) { 2170 mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n", 2171 slave, cmd, slave_state[slave].last_cmd); 2172 goto reset_slave; 2173 } 2174 2175 mutex_lock(&priv->cmd.slave_cmd_mutex); 2176 if (mlx4_master_process_vhcr(dev, slave, NULL)) { 2177 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n", 2178 slave); 2179 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2180 goto reset_slave; 2181 } 2182 mutex_unlock(&priv->cmd.slave_cmd_mutex); 2183 break; 2184 default: 2185 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave); 2186 goto reset_slave; 2187 } 2188 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2189 if (!slave_state[slave].is_slave_going_down) 2190 slave_state[slave].last_cmd = cmd; 2191 else 2192 is_going_down = 1; 2193 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2194 if (is_going_down) { 2195 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n", 2196 cmd, slave); 2197 return; 2198 } 2199 __raw_writel((__force u32) cpu_to_be32(reply), 2200 &priv->mfunc.comm[slave].slave_read); 2201 mmiowb(); 2202 2203 return; 2204 2205 reset_slave: 2206 /* cleanup any slave resources */ 2207 if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP) 2208 mlx4_delete_all_resources_for_slave(dev, slave); 2209 2210 if (cmd != MLX4_COMM_CMD_RESET) { 2211 mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n", 2212 slave, cmd); 2213 /* Turn on internal error letting slave reset itself immeditaly, 2214 * otherwise it might take till timeout on command is passed 2215 */ 2216 reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR); 2217 } 2218 2219 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags); 2220 if (!slave_state[slave].is_slave_going_down) 2221 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET; 2222 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags); 2223 /*with slave in the middle of flr, no need to clean resources again.*/ 2224 inform_slave_state: 2225 memset(&slave_state[slave].event_eq, 0, 2226 sizeof(struct mlx4_slave_event_eq_info)); 2227 __raw_writel((__force u32) cpu_to_be32(reply), 2228 &priv->mfunc.comm[slave].slave_read); 2229 wmb(); 2230 } 2231 2232 /* master command processing */ 2233 void mlx4_master_comm_channel(struct work_struct *work) 2234 { 2235 struct mlx4_mfunc_master_ctx *master = 2236 container_of(work, 2237 struct mlx4_mfunc_master_ctx, 2238 comm_work); 2239 struct mlx4_mfunc *mfunc = 2240 container_of(master, struct mlx4_mfunc, master); 2241 struct mlx4_priv *priv = 2242 container_of(mfunc, struct mlx4_priv, mfunc); 2243 struct mlx4_dev *dev = &priv->dev; 2244 __be32 *bit_vec; 2245 u32 comm_cmd; 2246 u32 vec; 2247 int i, j, slave; 2248 int toggle; 2249 int served = 0; 2250 int reported = 0; 2251 u32 slt; 2252 2253 bit_vec = master->comm_arm_bit_vector; 2254 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) { 2255 vec = be32_to_cpu(bit_vec[i]); 2256 for (j = 0; j < 32; j++) { 2257 if (!(vec & (1 << j))) 2258 continue; 2259 ++reported; 2260 slave = (i * 32) + j; 2261 comm_cmd = swab32(readl( 2262 &mfunc->comm[slave].slave_write)); 2263 slt = swab32(readl(&mfunc->comm[slave].slave_read)) 2264 >> 31; 2265 toggle = comm_cmd >> 31; 2266 if (toggle != slt) { 2267 if (master->slave_state[slave].comm_toggle 2268 != slt) { 2269 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n", 2270 slave, slt, 2271 master->slave_state[slave].comm_toggle); 2272 master->slave_state[slave].comm_toggle = 2273 slt; 2274 } 2275 mlx4_master_do_cmd(dev, slave, 2276 comm_cmd >> 16 & 0xff, 2277 comm_cmd & 0xffff, toggle); 2278 ++served; 2279 } 2280 } 2281 } 2282 2283 if (reported && reported != served) 2284 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n", 2285 reported, served); 2286 2287 if (mlx4_ARM_COMM_CHANNEL(dev)) 2288 mlx4_warn(dev, "Failed to arm comm channel events\n"); 2289 } 2290 2291 static int sync_toggles(struct mlx4_dev *dev) 2292 { 2293 struct mlx4_priv *priv = mlx4_priv(dev); 2294 u32 wr_toggle; 2295 u32 rd_toggle; 2296 unsigned long end; 2297 2298 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)); 2299 if (wr_toggle == 0xffffffff) 2300 end = jiffies + msecs_to_jiffies(30000); 2301 else 2302 end = jiffies + msecs_to_jiffies(5000); 2303 2304 while (time_before(jiffies, end)) { 2305 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)); 2306 if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) { 2307 /* PCI might be offline */ 2308 2309 /* If device removal has been requested, 2310 * do not continue retrying. 2311 */ 2312 if (dev->persist->interface_state & 2313 MLX4_INTERFACE_STATE_NOWAIT) { 2314 mlx4_warn(dev, 2315 "communication channel is offline\n"); 2316 return -EIO; 2317 } 2318 2319 msleep(100); 2320 wr_toggle = swab32(readl(&priv->mfunc.comm-> 2321 slave_write)); 2322 continue; 2323 } 2324 2325 if (rd_toggle >> 31 == wr_toggle >> 31) { 2326 priv->cmd.comm_toggle = rd_toggle >> 31; 2327 return 0; 2328 } 2329 2330 cond_resched(); 2331 } 2332 2333 /* 2334 * we could reach here if for example the previous VM using this 2335 * function misbehaved and left the channel with unsynced state. We 2336 * should fix this here and give this VM a chance to use a properly 2337 * synced channel 2338 */ 2339 mlx4_warn(dev, "recovering from previously mis-behaved VM\n"); 2340 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read); 2341 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write); 2342 priv->cmd.comm_toggle = 0; 2343 2344 return 0; 2345 } 2346 2347 int mlx4_multi_func_init(struct mlx4_dev *dev) 2348 { 2349 struct mlx4_priv *priv = mlx4_priv(dev); 2350 struct mlx4_slave_state *s_state; 2351 int i, j, err, port; 2352 2353 if (mlx4_is_master(dev)) 2354 priv->mfunc.comm = 2355 ioremap(pci_resource_start(dev->persist->pdev, 2356 priv->fw.comm_bar) + 2357 priv->fw.comm_base, MLX4_COMM_PAGESIZE); 2358 else 2359 priv->mfunc.comm = 2360 ioremap(pci_resource_start(dev->persist->pdev, 2) + 2361 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE); 2362 if (!priv->mfunc.comm) { 2363 mlx4_err(dev, "Couldn't map communication vector\n"); 2364 goto err_vhcr; 2365 } 2366 2367 if (mlx4_is_master(dev)) { 2368 struct mlx4_vf_oper_state *vf_oper; 2369 struct mlx4_vf_admin_state *vf_admin; 2370 2371 priv->mfunc.master.slave_state = 2372 kzalloc(dev->num_slaves * 2373 sizeof(struct mlx4_slave_state), GFP_KERNEL); 2374 if (!priv->mfunc.master.slave_state) 2375 goto err_comm; 2376 2377 priv->mfunc.master.vf_admin = 2378 kzalloc(dev->num_slaves * 2379 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL); 2380 if (!priv->mfunc.master.vf_admin) 2381 goto err_comm_admin; 2382 2383 priv->mfunc.master.vf_oper = 2384 kzalloc(dev->num_slaves * 2385 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL); 2386 if (!priv->mfunc.master.vf_oper) 2387 goto err_comm_oper; 2388 2389 for (i = 0; i < dev->num_slaves; ++i) { 2390 vf_admin = &priv->mfunc.master.vf_admin[i]; 2391 vf_oper = &priv->mfunc.master.vf_oper[i]; 2392 s_state = &priv->mfunc.master.slave_state[i]; 2393 s_state->last_cmd = MLX4_COMM_CMD_RESET; 2394 s_state->vst_qinq_supported = false; 2395 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]); 2396 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j) 2397 s_state->event_eq[j].eqn = -1; 2398 __raw_writel((__force u32) 0, 2399 &priv->mfunc.comm[i].slave_write); 2400 __raw_writel((__force u32) 0, 2401 &priv->mfunc.comm[i].slave_read); 2402 mmiowb(); 2403 for (port = 1; port <= MLX4_MAX_PORTS; port++) { 2404 struct mlx4_vport_state *admin_vport; 2405 struct mlx4_vport_state *oper_vport; 2406 2407 s_state->vlan_filter[port] = 2408 kzalloc(sizeof(struct mlx4_vlan_fltr), 2409 GFP_KERNEL); 2410 if (!s_state->vlan_filter[port]) { 2411 if (--port) 2412 kfree(s_state->vlan_filter[port]); 2413 goto err_slaves; 2414 } 2415 2416 admin_vport = &vf_admin->vport[port]; 2417 oper_vport = &vf_oper->vport[port].state; 2418 INIT_LIST_HEAD(&s_state->mcast_filters[port]); 2419 admin_vport->default_vlan = MLX4_VGT; 2420 oper_vport->default_vlan = MLX4_VGT; 2421 admin_vport->qos_vport = 2422 MLX4_VPP_DEFAULT_VPORT; 2423 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT; 2424 admin_vport->vlan_proto = htons(ETH_P_8021Q); 2425 oper_vport->vlan_proto = htons(ETH_P_8021Q); 2426 vf_oper->vport[port].vlan_idx = NO_INDX; 2427 vf_oper->vport[port].mac_idx = NO_INDX; 2428 mlx4_set_random_admin_guid(dev, i, port); 2429 } 2430 spin_lock_init(&s_state->lock); 2431 } 2432 2433 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) { 2434 for (port = 1; port <= dev->caps.num_ports; port++) { 2435 if (mlx4_is_eth(dev, port)) { 2436 mlx4_set_default_port_qos(dev, port); 2437 mlx4_allocate_port_vpps(dev, port); 2438 } 2439 } 2440 } 2441 2442 memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe)); 2443 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD; 2444 INIT_WORK(&priv->mfunc.master.comm_work, 2445 mlx4_master_comm_channel); 2446 INIT_WORK(&priv->mfunc.master.slave_event_work, 2447 mlx4_gen_slave_eqe); 2448 INIT_WORK(&priv->mfunc.master.slave_flr_event_work, 2449 mlx4_master_handle_slave_flr); 2450 spin_lock_init(&priv->mfunc.master.slave_state_lock); 2451 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock); 2452 priv->mfunc.master.comm_wq = 2453 create_singlethread_workqueue("mlx4_comm"); 2454 if (!priv->mfunc.master.comm_wq) 2455 goto err_slaves; 2456 2457 if (mlx4_init_resource_tracker(dev)) 2458 goto err_thread; 2459 2460 } else { 2461 err = sync_toggles(dev); 2462 if (err) { 2463 mlx4_err(dev, "Couldn't sync toggles\n"); 2464 goto err_comm; 2465 } 2466 } 2467 return 0; 2468 2469 err_thread: 2470 flush_workqueue(priv->mfunc.master.comm_wq); 2471 destroy_workqueue(priv->mfunc.master.comm_wq); 2472 err_slaves: 2473 while (i--) { 2474 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2475 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2476 } 2477 kfree(priv->mfunc.master.vf_oper); 2478 err_comm_oper: 2479 kfree(priv->mfunc.master.vf_admin); 2480 err_comm_admin: 2481 kfree(priv->mfunc.master.slave_state); 2482 err_comm: 2483 iounmap(priv->mfunc.comm); 2484 priv->mfunc.comm = NULL; 2485 err_vhcr: 2486 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2487 priv->mfunc.vhcr, 2488 priv->mfunc.vhcr_dma); 2489 priv->mfunc.vhcr = NULL; 2490 return -ENOMEM; 2491 } 2492 2493 int mlx4_cmd_init(struct mlx4_dev *dev) 2494 { 2495 struct mlx4_priv *priv = mlx4_priv(dev); 2496 int flags = 0; 2497 2498 if (!priv->cmd.initialized) { 2499 init_rwsem(&priv->cmd.switch_sem); 2500 mutex_init(&priv->cmd.slave_cmd_mutex); 2501 sema_init(&priv->cmd.poll_sem, 1); 2502 priv->cmd.use_events = 0; 2503 priv->cmd.toggle = 1; 2504 priv->cmd.initialized = 1; 2505 flags |= MLX4_CMD_CLEANUP_STRUCT; 2506 } 2507 2508 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) { 2509 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev, 2510 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE); 2511 if (!priv->cmd.hcr) { 2512 mlx4_err(dev, "Couldn't map command register\n"); 2513 goto err; 2514 } 2515 flags |= MLX4_CMD_CLEANUP_HCR; 2516 } 2517 2518 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) { 2519 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev, 2520 PAGE_SIZE, 2521 &priv->mfunc.vhcr_dma, 2522 GFP_KERNEL); 2523 if (!priv->mfunc.vhcr) 2524 goto err; 2525 2526 flags |= MLX4_CMD_CLEANUP_VHCR; 2527 } 2528 2529 if (!priv->cmd.pool) { 2530 priv->cmd.pool = pci_pool_create("mlx4_cmd", 2531 dev->persist->pdev, 2532 MLX4_MAILBOX_SIZE, 2533 MLX4_MAILBOX_SIZE, 0); 2534 if (!priv->cmd.pool) 2535 goto err; 2536 2537 flags |= MLX4_CMD_CLEANUP_POOL; 2538 } 2539 2540 return 0; 2541 2542 err: 2543 mlx4_cmd_cleanup(dev, flags); 2544 return -ENOMEM; 2545 } 2546 2547 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev) 2548 { 2549 struct mlx4_priv *priv = mlx4_priv(dev); 2550 int slave; 2551 u32 slave_read; 2552 2553 /* If the comm channel has not yet been initialized, 2554 * skip reporting the internal error event to all 2555 * the communication channels. 2556 */ 2557 if (!priv->mfunc.comm) 2558 return; 2559 2560 /* Report an internal error event to all 2561 * communication channels. 2562 */ 2563 for (slave = 0; slave < dev->num_slaves; slave++) { 2564 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read)); 2565 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR; 2566 __raw_writel((__force u32)cpu_to_be32(slave_read), 2567 &priv->mfunc.comm[slave].slave_read); 2568 /* Make sure that our comm channel write doesn't 2569 * get mixed in with writes from another CPU. 2570 */ 2571 mmiowb(); 2572 } 2573 } 2574 2575 void mlx4_multi_func_cleanup(struct mlx4_dev *dev) 2576 { 2577 struct mlx4_priv *priv = mlx4_priv(dev); 2578 int i, port; 2579 2580 if (mlx4_is_master(dev)) { 2581 flush_workqueue(priv->mfunc.master.comm_wq); 2582 destroy_workqueue(priv->mfunc.master.comm_wq); 2583 for (i = 0; i < dev->num_slaves; i++) { 2584 for (port = 1; port <= MLX4_MAX_PORTS; port++) 2585 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]); 2586 } 2587 kfree(priv->mfunc.master.slave_state); 2588 kfree(priv->mfunc.master.vf_admin); 2589 kfree(priv->mfunc.master.vf_oper); 2590 dev->num_slaves = 0; 2591 } 2592 2593 iounmap(priv->mfunc.comm); 2594 priv->mfunc.comm = NULL; 2595 } 2596 2597 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask) 2598 { 2599 struct mlx4_priv *priv = mlx4_priv(dev); 2600 2601 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) { 2602 pci_pool_destroy(priv->cmd.pool); 2603 priv->cmd.pool = NULL; 2604 } 2605 2606 if (!mlx4_is_slave(dev) && priv->cmd.hcr && 2607 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) { 2608 iounmap(priv->cmd.hcr); 2609 priv->cmd.hcr = NULL; 2610 } 2611 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr && 2612 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) { 2613 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE, 2614 priv->mfunc.vhcr, priv->mfunc.vhcr_dma); 2615 priv->mfunc.vhcr = NULL; 2616 } 2617 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT)) 2618 priv->cmd.initialized = 0; 2619 } 2620 2621 /* 2622 * Switch to using events to issue FW commands (can only be called 2623 * after event queue for command events has been initialized). 2624 */ 2625 int mlx4_cmd_use_events(struct mlx4_dev *dev) 2626 { 2627 struct mlx4_priv *priv = mlx4_priv(dev); 2628 int i; 2629 int err = 0; 2630 2631 priv->cmd.context = kmalloc(priv->cmd.max_cmds * 2632 sizeof (struct mlx4_cmd_context), 2633 GFP_KERNEL); 2634 if (!priv->cmd.context) 2635 return -ENOMEM; 2636 2637 down_write(&priv->cmd.switch_sem); 2638 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2639 priv->cmd.context[i].token = i; 2640 priv->cmd.context[i].next = i + 1; 2641 /* To support fatal error flow, initialize all 2642 * cmd contexts to allow simulating completions 2643 * with complete() at any time. 2644 */ 2645 init_completion(&priv->cmd.context[i].done); 2646 } 2647 2648 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1; 2649 priv->cmd.free_head = 0; 2650 2651 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds); 2652 2653 for (priv->cmd.token_mask = 1; 2654 priv->cmd.token_mask < priv->cmd.max_cmds; 2655 priv->cmd.token_mask <<= 1) 2656 ; /* nothing */ 2657 --priv->cmd.token_mask; 2658 2659 down(&priv->cmd.poll_sem); 2660 priv->cmd.use_events = 1; 2661 up_write(&priv->cmd.switch_sem); 2662 2663 return err; 2664 } 2665 2666 /* 2667 * Switch back to polling (used when shutting down the device) 2668 */ 2669 void mlx4_cmd_use_polling(struct mlx4_dev *dev) 2670 { 2671 struct mlx4_priv *priv = mlx4_priv(dev); 2672 int i; 2673 2674 down_write(&priv->cmd.switch_sem); 2675 priv->cmd.use_events = 0; 2676 2677 for (i = 0; i < priv->cmd.max_cmds; ++i) 2678 down(&priv->cmd.event_sem); 2679 2680 kfree(priv->cmd.context); 2681 2682 up(&priv->cmd.poll_sem); 2683 up_write(&priv->cmd.switch_sem); 2684 } 2685 2686 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) 2687 { 2688 struct mlx4_cmd_mailbox *mailbox; 2689 2690 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL); 2691 if (!mailbox) 2692 return ERR_PTR(-ENOMEM); 2693 2694 mailbox->buf = pci_pool_zalloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL, 2695 &mailbox->dma); 2696 if (!mailbox->buf) { 2697 kfree(mailbox); 2698 return ERR_PTR(-ENOMEM); 2699 } 2700 2701 return mailbox; 2702 } 2703 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox); 2704 2705 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, 2706 struct mlx4_cmd_mailbox *mailbox) 2707 { 2708 if (!mailbox) 2709 return; 2710 2711 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma); 2712 kfree(mailbox); 2713 } 2714 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox); 2715 2716 u32 mlx4_comm_get_version(void) 2717 { 2718 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER; 2719 } 2720 2721 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf) 2722 { 2723 if ((vf < 0) || (vf >= dev->persist->num_vfs)) { 2724 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", 2725 vf, dev->persist->num_vfs); 2726 return -EINVAL; 2727 } 2728 2729 return vf+1; 2730 } 2731 2732 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave) 2733 { 2734 if (slave < 1 || slave > dev->persist->num_vfs) { 2735 mlx4_err(dev, 2736 "Bad slave number:%d (number of activated slaves: %lu)\n", 2737 slave, dev->num_slaves); 2738 return -EINVAL; 2739 } 2740 return slave - 1; 2741 } 2742 2743 void mlx4_cmd_wake_completions(struct mlx4_dev *dev) 2744 { 2745 struct mlx4_priv *priv = mlx4_priv(dev); 2746 struct mlx4_cmd_context *context; 2747 int i; 2748 2749 spin_lock(&priv->cmd.context_lock); 2750 if (priv->cmd.context) { 2751 for (i = 0; i < priv->cmd.max_cmds; ++i) { 2752 context = &priv->cmd.context[i]; 2753 context->fw_status = CMD_STAT_INTERNAL_ERR; 2754 context->result = 2755 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR); 2756 complete(&context->done); 2757 } 2758 } 2759 spin_unlock(&priv->cmd.context_lock); 2760 } 2761 2762 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave) 2763 { 2764 struct mlx4_active_ports actv_ports; 2765 int vf; 2766 2767 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS); 2768 2769 if (slave == 0) { 2770 bitmap_fill(actv_ports.ports, dev->caps.num_ports); 2771 return actv_ports; 2772 } 2773 2774 vf = mlx4_get_vf_indx(dev, slave); 2775 if (vf < 0) 2776 return actv_ports; 2777 2778 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1, 2779 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports, 2780 dev->caps.num_ports)); 2781 2782 return actv_ports; 2783 } 2784 EXPORT_SYMBOL_GPL(mlx4_get_active_ports); 2785 2786 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port) 2787 { 2788 unsigned n; 2789 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2790 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2791 2792 if (port <= 0 || port > m) 2793 return -EINVAL; 2794 2795 n = find_first_bit(actv_ports.ports, dev->caps.num_ports); 2796 if (port <= n) 2797 port = n + 1; 2798 2799 return port; 2800 } 2801 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port); 2802 2803 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port) 2804 { 2805 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2806 if (test_bit(port - 1, actv_ports.ports)) 2807 return port - 2808 find_first_bit(actv_ports.ports, dev->caps.num_ports); 2809 2810 return -1; 2811 } 2812 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port); 2813 2814 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev, 2815 int port) 2816 { 2817 unsigned i; 2818 struct mlx4_slaves_pport slaves_pport; 2819 2820 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2821 2822 if (port <= 0 || port > dev->caps.num_ports) 2823 return slaves_pport; 2824 2825 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2826 struct mlx4_active_ports actv_ports = 2827 mlx4_get_active_ports(dev, i); 2828 if (test_bit(port - 1, actv_ports.ports)) 2829 set_bit(i, slaves_pport.slaves); 2830 } 2831 2832 return slaves_pport; 2833 } 2834 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport); 2835 2836 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv( 2837 struct mlx4_dev *dev, 2838 const struct mlx4_active_ports *crit_ports) 2839 { 2840 unsigned i; 2841 struct mlx4_slaves_pport slaves_pport; 2842 2843 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX); 2844 2845 for (i = 0; i < dev->persist->num_vfs + 1; i++) { 2846 struct mlx4_active_ports actv_ports = 2847 mlx4_get_active_ports(dev, i); 2848 if (bitmap_equal(crit_ports->ports, actv_ports.ports, 2849 dev->caps.num_ports)) 2850 set_bit(i, slaves_pport.slaves); 2851 } 2852 2853 return slaves_pport; 2854 } 2855 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv); 2856 2857 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port) 2858 { 2859 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave); 2860 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports) 2861 + 1; 2862 int max_port = min_port + 2863 bitmap_weight(actv_ports.ports, dev->caps.num_ports); 2864 2865 if (port < min_port) 2866 port = min_port; 2867 else if (port >= max_port) 2868 port = max_port - 1; 2869 2870 return port; 2871 } 2872 2873 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port, 2874 int max_tx_rate) 2875 { 2876 int i; 2877 int err; 2878 struct mlx4_qos_manager *port_qos; 2879 struct mlx4_dev *dev = &priv->dev; 2880 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP]; 2881 2882 port_qos = &priv->mfunc.master.qos_ctl[port]; 2883 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP); 2884 2885 if (slave > port_qos->num_of_qos_vfs) { 2886 mlx4_info(dev, "No availible VPP resources for this VF\n"); 2887 return -EINVAL; 2888 } 2889 2890 /* Query for default QoS values from Vport 0 is needed */ 2891 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos); 2892 if (err) { 2893 mlx4_info(dev, "Failed to query Vport 0 QoS values\n"); 2894 return err; 2895 } 2896 2897 for (i = 0; i < MLX4_NUM_UP; i++) { 2898 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) { 2899 vpp_qos[i].max_avg_bw = max_tx_rate; 2900 vpp_qos[i].enable = 1; 2901 } else { 2902 /* if user supplied tx_rate == 0, meaning no rate limit 2903 * configuration is required. so we are leaving the 2904 * value of max_avg_bw as queried from Vport 0. 2905 */ 2906 vpp_qos[i].enable = 0; 2907 } 2908 } 2909 2910 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos); 2911 if (err) { 2912 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave); 2913 return err; 2914 } 2915 2916 return 0; 2917 } 2918 2919 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port, 2920 struct mlx4_vport_state *vf_admin) 2921 { 2922 struct mlx4_qos_manager *info; 2923 struct mlx4_priv *priv = mlx4_priv(dev); 2924 2925 if (!mlx4_is_master(dev) || 2926 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 2927 return false; 2928 2929 info = &priv->mfunc.master.qos_ctl[port]; 2930 2931 if (vf_admin->default_vlan != MLX4_VGT && 2932 test_bit(vf_admin->default_qos, info->priority_bm)) 2933 return true; 2934 2935 return false; 2936 } 2937 2938 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, 2939 struct mlx4_vport_state *vf_admin, 2940 int vlan, int qos) 2941 { 2942 struct mlx4_vport_state dummy_admin = {0}; 2943 2944 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) || 2945 !vf_admin->tx_rate) 2946 return true; 2947 2948 dummy_admin.default_qos = qos; 2949 dummy_admin.default_vlan = vlan; 2950 2951 /* VF wants to move to other VST state which is valid with current 2952 * rate limit. Either differnt default vlan in VST or other 2953 * supported QoS priority. Otherwise we don't allow this change when 2954 * the TX rate is still configured. 2955 */ 2956 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin)) 2957 return true; 2958 2959 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n", 2960 (vlan == MLX4_VGT) ? "VGT" : "VST"); 2961 2962 if (vlan != MLX4_VGT) 2963 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos); 2964 2965 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n"); 2966 2967 return false; 2968 } 2969 2970 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u8 *mac) 2971 { 2972 struct mlx4_priv *priv = mlx4_priv(dev); 2973 struct mlx4_vport_state *s_info; 2974 int slave; 2975 2976 if (!mlx4_is_master(dev)) 2977 return -EPROTONOSUPPORT; 2978 2979 if (is_multicast_ether_addr(mac)) 2980 return -EINVAL; 2981 2982 slave = mlx4_get_slave_indx(dev, vf); 2983 if (slave < 0) 2984 return -EINVAL; 2985 2986 port = mlx4_slaves_closest_port(dev, slave, port); 2987 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 2988 2989 if (s_info->spoofchk && is_zero_ether_addr(mac)) { 2990 mlx4_info(dev, "MAC invalidation is not allowed when spoofchk is on\n"); 2991 return -EPERM; 2992 } 2993 2994 s_info->mac = mlx4_mac_to_u64(mac); 2995 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n", 2996 vf, port, s_info->mac); 2997 return 0; 2998 } 2999 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac); 3000 3001 3002 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos, 3003 __be16 proto) 3004 { 3005 struct mlx4_priv *priv = mlx4_priv(dev); 3006 struct mlx4_vport_state *vf_admin; 3007 struct mlx4_slave_state *slave_state; 3008 struct mlx4_vport_oper_state *vf_oper; 3009 int slave; 3010 3011 if ((!mlx4_is_master(dev)) || 3012 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL)) 3013 return -EPROTONOSUPPORT; 3014 3015 if ((vlan > 4095) || (qos > 7)) 3016 return -EINVAL; 3017 3018 if (proto == htons(ETH_P_8021AD) && 3019 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP)) 3020 return -EPROTONOSUPPORT; 3021 3022 if (proto != htons(ETH_P_8021Q) && 3023 proto != htons(ETH_P_8021AD)) 3024 return -EINVAL; 3025 3026 if ((proto == htons(ETH_P_8021AD)) && 3027 ((vlan == 0) || (vlan == MLX4_VGT))) 3028 return -EINVAL; 3029 3030 slave = mlx4_get_slave_indx(dev, vf); 3031 if (slave < 0) 3032 return -EINVAL; 3033 3034 slave_state = &priv->mfunc.master.slave_state[slave]; 3035 if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) && 3036 (!slave_state->vst_qinq_supported)) { 3037 mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf); 3038 return -EPROTONOSUPPORT; 3039 } 3040 port = mlx4_slaves_closest_port(dev, slave, port); 3041 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3042 vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3043 3044 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos)) 3045 return -EPERM; 3046 3047 if ((0 == vlan) && (0 == qos)) 3048 vf_admin->default_vlan = MLX4_VGT; 3049 else 3050 vf_admin->default_vlan = vlan; 3051 vf_admin->default_qos = qos; 3052 vf_admin->vlan_proto = proto; 3053 3054 /* If rate was configured prior to VST, we saved the configured rate 3055 * in vf_admin->rate and now, if priority supported we enforce the QoS 3056 */ 3057 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) && 3058 vf_admin->tx_rate) 3059 vf_admin->qos_vport = slave; 3060 3061 /* Try to activate new vf state without restart, 3062 * this option is not supported while moving to VST QinQ mode. 3063 */ 3064 if ((proto == htons(ETH_P_8021AD) && 3065 vf_oper->state.vlan_proto != proto) || 3066 mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3067 mlx4_info(dev, 3068 "updating vf %d port %d config will take effect on next VF restart\n", 3069 vf, port); 3070 return 0; 3071 } 3072 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan); 3073 3074 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate, 3075 int max_tx_rate) 3076 { 3077 int err; 3078 int slave; 3079 struct mlx4_vport_state *vf_admin; 3080 struct mlx4_priv *priv = mlx4_priv(dev); 3081 3082 if (!mlx4_is_master(dev) || 3083 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP)) 3084 return -EPROTONOSUPPORT; 3085 3086 if (min_tx_rate) { 3087 mlx4_info(dev, "Minimum BW share not supported\n"); 3088 return -EPROTONOSUPPORT; 3089 } 3090 3091 slave = mlx4_get_slave_indx(dev, vf); 3092 if (slave < 0) 3093 return -EINVAL; 3094 3095 port = mlx4_slaves_closest_port(dev, slave, port); 3096 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port]; 3097 3098 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate); 3099 if (err) { 3100 mlx4_info(dev, "vf %d failed to set rate %d\n", vf, 3101 max_tx_rate); 3102 return err; 3103 } 3104 3105 vf_admin->tx_rate = max_tx_rate; 3106 /* if VF is not in supported mode (VST with supported prio), 3107 * we do not change vport configuration for its QPs, but save 3108 * the rate, so it will be enforced when it moves to supported 3109 * mode next time. 3110 */ 3111 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) { 3112 mlx4_info(dev, 3113 "rate set for VF %d when not in valid state\n", vf); 3114 3115 if (vf_admin->default_vlan != MLX4_VGT) 3116 mlx4_info(dev, "VST priority not supported by QoS\n"); 3117 else 3118 mlx4_info(dev, "VF in VGT mode (needed VST)\n"); 3119 3120 mlx4_info(dev, 3121 "rate %d take affect when VF moves to valid state\n", 3122 max_tx_rate); 3123 return 0; 3124 } 3125 3126 /* If user sets rate 0 assigning default vport for its QPs */ 3127 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT; 3128 3129 if (priv->mfunc.master.slave_state[slave].active && 3130 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) 3131 mlx4_master_immediate_activate_vlan_qos(priv, slave, port); 3132 3133 return 0; 3134 } 3135 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate); 3136 3137 /* mlx4_get_slave_default_vlan - 3138 * return true if VST ( default vlan) 3139 * if VST, will return vlan & qos (if not NULL) 3140 */ 3141 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave, 3142 u16 *vlan, u8 *qos) 3143 { 3144 struct mlx4_vport_oper_state *vp_oper; 3145 struct mlx4_priv *priv; 3146 3147 priv = mlx4_priv(dev); 3148 port = mlx4_slaves_closest_port(dev, slave, port); 3149 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 3150 3151 if (MLX4_VGT != vp_oper->state.default_vlan) { 3152 if (vlan) 3153 *vlan = vp_oper->state.default_vlan; 3154 if (qos) 3155 *qos = vp_oper->state.default_qos; 3156 return true; 3157 } 3158 return false; 3159 } 3160 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan); 3161 3162 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 3163 { 3164 struct mlx4_priv *priv = mlx4_priv(dev); 3165 struct mlx4_vport_state *s_info; 3166 int slave; 3167 u8 mac[ETH_ALEN]; 3168 3169 if ((!mlx4_is_master(dev)) || 3170 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM)) 3171 return -EPROTONOSUPPORT; 3172 3173 slave = mlx4_get_slave_indx(dev, vf); 3174 if (slave < 0) 3175 return -EINVAL; 3176 3177 port = mlx4_slaves_closest_port(dev, slave, port); 3178 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3179 3180 mlx4_u64_to_mac(mac, s_info->mac); 3181 if (setting && !is_valid_ether_addr(mac)) { 3182 mlx4_info(dev, "Illegal MAC with spoofchk\n"); 3183 return -EPERM; 3184 } 3185 3186 s_info->spoofchk = setting; 3187 3188 return 0; 3189 } 3190 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk); 3191 3192 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf) 3193 { 3194 struct mlx4_priv *priv = mlx4_priv(dev); 3195 struct mlx4_vport_state *s_info; 3196 int slave; 3197 3198 if (!mlx4_is_master(dev)) 3199 return -EPROTONOSUPPORT; 3200 3201 slave = mlx4_get_slave_indx(dev, vf); 3202 if (slave < 0) 3203 return -EINVAL; 3204 3205 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3206 ivf->vf = vf; 3207 3208 /* need to convert it to a func */ 3209 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff); 3210 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff); 3211 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff); 3212 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff); 3213 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff); 3214 ivf->mac[5] = ((s_info->mac) & 0xff); 3215 3216 ivf->vlan = s_info->default_vlan; 3217 ivf->qos = s_info->default_qos; 3218 ivf->vlan_proto = s_info->vlan_proto; 3219 3220 if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info)) 3221 ivf->max_tx_rate = s_info->tx_rate; 3222 else 3223 ivf->max_tx_rate = 0; 3224 3225 ivf->min_tx_rate = 0; 3226 ivf->spoofchk = s_info->spoofchk; 3227 ivf->linkstate = s_info->link_state; 3228 3229 return 0; 3230 } 3231 EXPORT_SYMBOL_GPL(mlx4_get_vf_config); 3232 3233 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state) 3234 { 3235 struct mlx4_priv *priv = mlx4_priv(dev); 3236 struct mlx4_vport_state *s_info; 3237 int slave; 3238 u8 link_stat_event; 3239 3240 slave = mlx4_get_slave_indx(dev, vf); 3241 if (slave < 0) 3242 return -EINVAL; 3243 3244 port = mlx4_slaves_closest_port(dev, slave, port); 3245 switch (link_state) { 3246 case IFLA_VF_LINK_STATE_AUTO: 3247 /* get current link state */ 3248 if (!priv->sense.do_sense_port[port]) 3249 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3250 else 3251 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3252 break; 3253 3254 case IFLA_VF_LINK_STATE_ENABLE: 3255 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE; 3256 break; 3257 3258 case IFLA_VF_LINK_STATE_DISABLE: 3259 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN; 3260 break; 3261 3262 default: 3263 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n", 3264 link_state, slave, port); 3265 return -EINVAL; 3266 }; 3267 s_info = &priv->mfunc.master.vf_admin[slave].vport[port]; 3268 s_info->link_state = link_state; 3269 3270 /* send event */ 3271 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event); 3272 3273 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port)) 3274 mlx4_dbg(dev, 3275 "updating vf %d port %d no link state HW enforcment\n", 3276 vf, port); 3277 return 0; 3278 } 3279 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state); 3280 3281 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, 3282 struct mlx4_counter *counter_stats, int reset) 3283 { 3284 struct mlx4_cmd_mailbox *mailbox = NULL; 3285 struct mlx4_counter *tmp_counter; 3286 int err; 3287 u32 if_stat_in_mod; 3288 3289 if (!counter_stats) 3290 return -EINVAL; 3291 3292 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) 3293 return 0; 3294 3295 mailbox = mlx4_alloc_cmd_mailbox(dev); 3296 if (IS_ERR(mailbox)) 3297 return PTR_ERR(mailbox); 3298 3299 memset(mailbox->buf, 0, sizeof(struct mlx4_counter)); 3300 if_stat_in_mod = counter_index; 3301 if (reset) 3302 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET; 3303 err = mlx4_cmd_box(dev, 0, mailbox->dma, 3304 if_stat_in_mod, 0, 3305 MLX4_CMD_QUERY_IF_STAT, 3306 MLX4_CMD_TIME_CLASS_C, 3307 MLX4_CMD_NATIVE); 3308 if (err) { 3309 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n", 3310 __func__, counter_index); 3311 goto if_stat_out; 3312 } 3313 tmp_counter = (struct mlx4_counter *)mailbox->buf; 3314 counter_stats->counter_mode = tmp_counter->counter_mode; 3315 if (counter_stats->counter_mode == 0) { 3316 counter_stats->rx_frames = 3317 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) + 3318 be64_to_cpu(tmp_counter->rx_frames)); 3319 counter_stats->tx_frames = 3320 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) + 3321 be64_to_cpu(tmp_counter->tx_frames)); 3322 counter_stats->rx_bytes = 3323 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) + 3324 be64_to_cpu(tmp_counter->rx_bytes)); 3325 counter_stats->tx_bytes = 3326 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) + 3327 be64_to_cpu(tmp_counter->tx_bytes)); 3328 } 3329 3330 if_stat_out: 3331 mlx4_free_cmd_mailbox(dev, mailbox); 3332 3333 return err; 3334 } 3335 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); 3336 3337 int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, 3338 struct ifla_vf_stats *vf_stats) 3339 { 3340 struct mlx4_counter tmp_vf_stats; 3341 int slave; 3342 int err = 0; 3343 3344 if (!vf_stats) 3345 return -EINVAL; 3346 3347 if (!mlx4_is_master(dev)) 3348 return -EPROTONOSUPPORT; 3349 3350 slave = mlx4_get_slave_indx(dev, vf_idx); 3351 if (slave < 0) 3352 return -EINVAL; 3353 3354 port = mlx4_slaves_closest_port(dev, slave, port); 3355 err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats); 3356 if (!err && tmp_vf_stats.counter_mode == 0) { 3357 vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames); 3358 vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames); 3359 vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes); 3360 vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes); 3361 } 3362 3363 return err; 3364 } 3365 EXPORT_SYMBOL_GPL(mlx4_get_vf_stats); 3366 3367 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) 3368 { 3369 struct mlx4_priv *priv = mlx4_priv(dev); 3370 3371 if (slave < 1 || slave >= dev->num_slaves || 3372 port < 1 || port > MLX4_MAX_PORTS) 3373 return 0; 3374 3375 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] == 3376 MLX4_VF_SMI_ENABLED; 3377 } 3378 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled); 3379 3380 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port) 3381 { 3382 struct mlx4_priv *priv = mlx4_priv(dev); 3383 3384 if (slave == mlx4_master_func_num(dev)) 3385 return 1; 3386 3387 if (slave < 1 || slave >= dev->num_slaves || 3388 port < 1 || port > MLX4_MAX_PORTS) 3389 return 0; 3390 3391 return priv->mfunc.master.vf_admin[slave].enable_smi[port] == 3392 MLX4_VF_SMI_ENABLED; 3393 } 3394 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin); 3395 3396 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port, 3397 int enabled) 3398 { 3399 struct mlx4_priv *priv = mlx4_priv(dev); 3400 struct mlx4_active_ports actv_ports = mlx4_get_active_ports( 3401 &priv->dev, slave); 3402 int min_port = find_first_bit(actv_ports.ports, 3403 priv->dev.caps.num_ports) + 1; 3404 int max_port = min_port - 1 + 3405 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports); 3406 3407 if (slave == mlx4_master_func_num(dev)) 3408 return 0; 3409 3410 if (slave < 1 || slave >= dev->num_slaves || 3411 port < 1 || port > MLX4_MAX_PORTS || 3412 enabled < 0 || enabled > 1) 3413 return -EINVAL; 3414 3415 if (min_port == max_port && dev->caps.num_ports > 1) { 3416 mlx4_info(dev, "SMI access disallowed for single ported VFs\n"); 3417 return -EPROTONOSUPPORT; 3418 } 3419 3420 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled; 3421 return 0; 3422 } 3423 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin); 3424