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spi-imx: Implements handling of the SPI_READY mode flag.
[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / mellanox / mlx4 / cmd.c
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 msleep(100);
2309 wr_toggle = swab32(readl(&priv->mfunc.comm->
2310 slave_write));
2311 continue;
2312 }
2313
2314 if (rd_toggle >> 31 == wr_toggle >> 31) {
2315 priv->cmd.comm_toggle = rd_toggle >> 31;
2316 return 0;
2317 }
2318
2319 cond_resched();
2320 }
2321
2322 /*
2323 * we could reach here if for example the previous VM using this
2324 * function misbehaved and left the channel with unsynced state. We
2325 * should fix this here and give this VM a chance to use a properly
2326 * synced channel
2327 */
2328 mlx4_warn(dev, "recovering from previously mis-behaved VM\n");
2329 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read);
2330 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write);
2331 priv->cmd.comm_toggle = 0;
2332
2333 return 0;
2334 }
2335
2336 int mlx4_multi_func_init(struct mlx4_dev *dev)
2337 {
2338 struct mlx4_priv *priv = mlx4_priv(dev);
2339 struct mlx4_slave_state *s_state;
2340 int i, j, err, port;
2341
2342 if (mlx4_is_master(dev))
2343 priv->mfunc.comm =
2344 ioremap(pci_resource_start(dev->persist->pdev,
2345 priv->fw.comm_bar) +
2346 priv->fw.comm_base, MLX4_COMM_PAGESIZE);
2347 else
2348 priv->mfunc.comm =
2349 ioremap(pci_resource_start(dev->persist->pdev, 2) +
2350 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE);
2351 if (!priv->mfunc.comm) {
2352 mlx4_err(dev, "Couldn't map communication vector\n");
2353 goto err_vhcr;
2354 }
2355
2356 if (mlx4_is_master(dev)) {
2357 struct mlx4_vf_oper_state *vf_oper;
2358 struct mlx4_vf_admin_state *vf_admin;
2359
2360 priv->mfunc.master.slave_state =
2361 kzalloc(dev->num_slaves *
2362 sizeof(struct mlx4_slave_state), GFP_KERNEL);
2363 if (!priv->mfunc.master.slave_state)
2364 goto err_comm;
2365
2366 priv->mfunc.master.vf_admin =
2367 kzalloc(dev->num_slaves *
2368 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL);
2369 if (!priv->mfunc.master.vf_admin)
2370 goto err_comm_admin;
2371
2372 priv->mfunc.master.vf_oper =
2373 kzalloc(dev->num_slaves *
2374 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL);
2375 if (!priv->mfunc.master.vf_oper)
2376 goto err_comm_oper;
2377
2378 for (i = 0; i < dev->num_slaves; ++i) {
2379 vf_admin = &priv->mfunc.master.vf_admin[i];
2380 vf_oper = &priv->mfunc.master.vf_oper[i];
2381 s_state = &priv->mfunc.master.slave_state[i];
2382 s_state->last_cmd = MLX4_COMM_CMD_RESET;
2383 s_state->vst_qinq_supported = false;
2384 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]);
2385 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j)
2386 s_state->event_eq[j].eqn = -1;
2387 __raw_writel((__force u32) 0,
2388 &priv->mfunc.comm[i].slave_write);
2389 __raw_writel((__force u32) 0,
2390 &priv->mfunc.comm[i].slave_read);
2391 mmiowb();
2392 for (port = 1; port <= MLX4_MAX_PORTS; port++) {
2393 struct mlx4_vport_state *admin_vport;
2394 struct mlx4_vport_state *oper_vport;
2395
2396 s_state->vlan_filter[port] =
2397 kzalloc(sizeof(struct mlx4_vlan_fltr),
2398 GFP_KERNEL);
2399 if (!s_state->vlan_filter[port]) {
2400 if (--port)
2401 kfree(s_state->vlan_filter[port]);
2402 goto err_slaves;
2403 }
2404
2405 admin_vport = &vf_admin->vport[port];
2406 oper_vport = &vf_oper->vport[port].state;
2407 INIT_LIST_HEAD(&s_state->mcast_filters[port]);
2408 admin_vport->default_vlan = MLX4_VGT;
2409 oper_vport->default_vlan = MLX4_VGT;
2410 admin_vport->qos_vport =
2411 MLX4_VPP_DEFAULT_VPORT;
2412 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT;
2413 admin_vport->vlan_proto = htons(ETH_P_8021Q);
2414 oper_vport->vlan_proto = htons(ETH_P_8021Q);
2415 vf_oper->vport[port].vlan_idx = NO_INDX;
2416 vf_oper->vport[port].mac_idx = NO_INDX;
2417 mlx4_set_random_admin_guid(dev, i, port);
2418 }
2419 spin_lock_init(&s_state->lock);
2420 }
2421
2422 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) {
2423 for (port = 1; port <= dev->caps.num_ports; port++) {
2424 if (mlx4_is_eth(dev, port)) {
2425 mlx4_set_default_port_qos(dev, port);
2426 mlx4_allocate_port_vpps(dev, port);
2427 }
2428 }
2429 }
2430
2431 memset(&priv->mfunc.master.cmd_eqe, 0, sizeof(struct mlx4_eqe));
2432 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD;
2433 INIT_WORK(&priv->mfunc.master.comm_work,
2434 mlx4_master_comm_channel);
2435 INIT_WORK(&priv->mfunc.master.slave_event_work,
2436 mlx4_gen_slave_eqe);
2437 INIT_WORK(&priv->mfunc.master.slave_flr_event_work,
2438 mlx4_master_handle_slave_flr);
2439 spin_lock_init(&priv->mfunc.master.slave_state_lock);
2440 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock);
2441 priv->mfunc.master.comm_wq =
2442 create_singlethread_workqueue("mlx4_comm");
2443 if (!priv->mfunc.master.comm_wq)
2444 goto err_slaves;
2445
2446 if (mlx4_init_resource_tracker(dev))
2447 goto err_thread;
2448
2449 } else {
2450 err = sync_toggles(dev);
2451 if (err) {
2452 mlx4_err(dev, "Couldn't sync toggles\n");
2453 goto err_comm;
2454 }
2455 }
2456 return 0;
2457
2458 err_thread:
2459 flush_workqueue(priv->mfunc.master.comm_wq);
2460 destroy_workqueue(priv->mfunc.master.comm_wq);
2461 err_slaves:
2462 while (i--) {
2463 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2464 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2465 }
2466 kfree(priv->mfunc.master.vf_oper);
2467 err_comm_oper:
2468 kfree(priv->mfunc.master.vf_admin);
2469 err_comm_admin:
2470 kfree(priv->mfunc.master.slave_state);
2471 err_comm:
2472 iounmap(priv->mfunc.comm);
2473 priv->mfunc.comm = NULL;
2474 err_vhcr:
2475 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE,
2476 priv->mfunc.vhcr,
2477 priv->mfunc.vhcr_dma);
2478 priv->mfunc.vhcr = NULL;
2479 return -ENOMEM;
2480 }
2481
2482 int mlx4_cmd_init(struct mlx4_dev *dev)
2483 {
2484 struct mlx4_priv *priv = mlx4_priv(dev);
2485 int flags = 0;
2486
2487 if (!priv->cmd.initialized) {
2488 init_rwsem(&priv->cmd.switch_sem);
2489 mutex_init(&priv->cmd.slave_cmd_mutex);
2490 sema_init(&priv->cmd.poll_sem, 1);
2491 priv->cmd.use_events = 0;
2492 priv->cmd.toggle = 1;
2493 priv->cmd.initialized = 1;
2494 flags |= MLX4_CMD_CLEANUP_STRUCT;
2495 }
2496
2497 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) {
2498 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev,
2499 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE);
2500 if (!priv->cmd.hcr) {
2501 mlx4_err(dev, "Couldn't map command register\n");
2502 goto err;
2503 }
2504 flags |= MLX4_CMD_CLEANUP_HCR;
2505 }
2506
2507 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) {
2508 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev,
2509 PAGE_SIZE,
2510 &priv->mfunc.vhcr_dma,
2511 GFP_KERNEL);
2512 if (!priv->mfunc.vhcr)
2513 goto err;
2514
2515 flags |= MLX4_CMD_CLEANUP_VHCR;
2516 }
2517
2518 if (!priv->cmd.pool) {
2519 priv->cmd.pool = pci_pool_create("mlx4_cmd",
2520 dev->persist->pdev,
2521 MLX4_MAILBOX_SIZE,
2522 MLX4_MAILBOX_SIZE, 0);
2523 if (!priv->cmd.pool)
2524 goto err;
2525
2526 flags |= MLX4_CMD_CLEANUP_POOL;
2527 }
2528
2529 return 0;
2530
2531 err:
2532 mlx4_cmd_cleanup(dev, flags);
2533 return -ENOMEM;
2534 }
2535
2536 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev)
2537 {
2538 struct mlx4_priv *priv = mlx4_priv(dev);
2539 int slave;
2540 u32 slave_read;
2541
2542 /* If the comm channel has not yet been initialized,
2543 * skip reporting the internal error event to all
2544 * the communication channels.
2545 */
2546 if (!priv->mfunc.comm)
2547 return;
2548
2549 /* Report an internal error event to all
2550 * communication channels.
2551 */
2552 for (slave = 0; slave < dev->num_slaves; slave++) {
2553 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read));
2554 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR;
2555 __raw_writel((__force u32)cpu_to_be32(slave_read),
2556 &priv->mfunc.comm[slave].slave_read);
2557 /* Make sure that our comm channel write doesn't
2558 * get mixed in with writes from another CPU.
2559 */
2560 mmiowb();
2561 }
2562 }
2563
2564 void mlx4_multi_func_cleanup(struct mlx4_dev *dev)
2565 {
2566 struct mlx4_priv *priv = mlx4_priv(dev);
2567 int i, port;
2568
2569 if (mlx4_is_master(dev)) {
2570 flush_workqueue(priv->mfunc.master.comm_wq);
2571 destroy_workqueue(priv->mfunc.master.comm_wq);
2572 for (i = 0; i < dev->num_slaves; i++) {
2573 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2574 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2575 }
2576 kfree(priv->mfunc.master.slave_state);
2577 kfree(priv->mfunc.master.vf_admin);
2578 kfree(priv->mfunc.master.vf_oper);
2579 dev->num_slaves = 0;
2580 }
2581
2582 iounmap(priv->mfunc.comm);
2583 priv->mfunc.comm = NULL;
2584 }
2585
2586 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask)
2587 {
2588 struct mlx4_priv *priv = mlx4_priv(dev);
2589
2590 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) {
2591 pci_pool_destroy(priv->cmd.pool);
2592 priv->cmd.pool = NULL;
2593 }
2594
2595 if (!mlx4_is_slave(dev) && priv->cmd.hcr &&
2596 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) {
2597 iounmap(priv->cmd.hcr);
2598 priv->cmd.hcr = NULL;
2599 }
2600 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr &&
2601 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) {
2602 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE,
2603 priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
2604 priv->mfunc.vhcr = NULL;
2605 }
2606 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT))
2607 priv->cmd.initialized = 0;
2608 }
2609
2610 /*
2611 * Switch to using events to issue FW commands (can only be called
2612 * after event queue for command events has been initialized).
2613 */
2614 int mlx4_cmd_use_events(struct mlx4_dev *dev)
2615 {
2616 struct mlx4_priv *priv = mlx4_priv(dev);
2617 int i;
2618 int err = 0;
2619
2620 priv->cmd.context = kmalloc(priv->cmd.max_cmds *
2621 sizeof (struct mlx4_cmd_context),
2622 GFP_KERNEL);
2623 if (!priv->cmd.context)
2624 return -ENOMEM;
2625
2626 down_write(&priv->cmd.switch_sem);
2627 for (i = 0; i < priv->cmd.max_cmds; ++i) {
2628 priv->cmd.context[i].token = i;
2629 priv->cmd.context[i].next = i + 1;
2630 /* To support fatal error flow, initialize all
2631 * cmd contexts to allow simulating completions
2632 * with complete() at any time.
2633 */
2634 init_completion(&priv->cmd.context[i].done);
2635 }
2636
2637 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
2638 priv->cmd.free_head = 0;
2639
2640 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
2641
2642 for (priv->cmd.token_mask = 1;
2643 priv->cmd.token_mask < priv->cmd.max_cmds;
2644 priv->cmd.token_mask <<= 1)
2645 ; /* nothing */
2646 --priv->cmd.token_mask;
2647
2648 down(&priv->cmd.poll_sem);
2649 priv->cmd.use_events = 1;
2650 up_write(&priv->cmd.switch_sem);
2651
2652 return err;
2653 }
2654
2655 /*
2656 * Switch back to polling (used when shutting down the device)
2657 */
2658 void mlx4_cmd_use_polling(struct mlx4_dev *dev)
2659 {
2660 struct mlx4_priv *priv = mlx4_priv(dev);
2661 int i;
2662
2663 down_write(&priv->cmd.switch_sem);
2664 priv->cmd.use_events = 0;
2665
2666 for (i = 0; i < priv->cmd.max_cmds; ++i)
2667 down(&priv->cmd.event_sem);
2668
2669 kfree(priv->cmd.context);
2670
2671 up(&priv->cmd.poll_sem);
2672 up_write(&priv->cmd.switch_sem);
2673 }
2674
2675 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
2676 {
2677 struct mlx4_cmd_mailbox *mailbox;
2678
2679 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
2680 if (!mailbox)
2681 return ERR_PTR(-ENOMEM);
2682
2683 mailbox->buf = pci_pool_zalloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
2684 &mailbox->dma);
2685 if (!mailbox->buf) {
2686 kfree(mailbox);
2687 return ERR_PTR(-ENOMEM);
2688 }
2689
2690 return mailbox;
2691 }
2692 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
2693
2694 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev,
2695 struct mlx4_cmd_mailbox *mailbox)
2696 {
2697 if (!mailbox)
2698 return;
2699
2700 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
2701 kfree(mailbox);
2702 }
2703 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
2704
2705 u32 mlx4_comm_get_version(void)
2706 {
2707 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER;
2708 }
2709
2710 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf)
2711 {
2712 if ((vf < 0) || (vf >= dev->persist->num_vfs)) {
2713 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n",
2714 vf, dev->persist->num_vfs);
2715 return -EINVAL;
2716 }
2717
2718 return vf+1;
2719 }
2720
2721 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave)
2722 {
2723 if (slave < 1 || slave > dev->persist->num_vfs) {
2724 mlx4_err(dev,
2725 "Bad slave number:%d (number of activated slaves: %lu)\n",
2726 slave, dev->num_slaves);
2727 return -EINVAL;
2728 }
2729 return slave - 1;
2730 }
2731
2732 void mlx4_cmd_wake_completions(struct mlx4_dev *dev)
2733 {
2734 struct mlx4_priv *priv = mlx4_priv(dev);
2735 struct mlx4_cmd_context *context;
2736 int i;
2737
2738 spin_lock(&priv->cmd.context_lock);
2739 if (priv->cmd.context) {
2740 for (i = 0; i < priv->cmd.max_cmds; ++i) {
2741 context = &priv->cmd.context[i];
2742 context->fw_status = CMD_STAT_INTERNAL_ERR;
2743 context->result =
2744 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
2745 complete(&context->done);
2746 }
2747 }
2748 spin_unlock(&priv->cmd.context_lock);
2749 }
2750
2751 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave)
2752 {
2753 struct mlx4_active_ports actv_ports;
2754 int vf;
2755
2756 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS);
2757
2758 if (slave == 0) {
2759 bitmap_fill(actv_ports.ports, dev->caps.num_ports);
2760 return actv_ports;
2761 }
2762
2763 vf = mlx4_get_vf_indx(dev, slave);
2764 if (vf < 0)
2765 return actv_ports;
2766
2767 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1,
2768 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports,
2769 dev->caps.num_ports));
2770
2771 return actv_ports;
2772 }
2773 EXPORT_SYMBOL_GPL(mlx4_get_active_ports);
2774
2775 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port)
2776 {
2777 unsigned n;
2778 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2779 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2780
2781 if (port <= 0 || port > m)
2782 return -EINVAL;
2783
2784 n = find_first_bit(actv_ports.ports, dev->caps.num_ports);
2785 if (port <= n)
2786 port = n + 1;
2787
2788 return port;
2789 }
2790 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port);
2791
2792 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port)
2793 {
2794 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2795 if (test_bit(port - 1, actv_ports.ports))
2796 return port -
2797 find_first_bit(actv_ports.ports, dev->caps.num_ports);
2798
2799 return -1;
2800 }
2801 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port);
2802
2803 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev,
2804 int port)
2805 {
2806 unsigned i;
2807 struct mlx4_slaves_pport slaves_pport;
2808
2809 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2810
2811 if (port <= 0 || port > dev->caps.num_ports)
2812 return slaves_pport;
2813
2814 for (i = 0; i < dev->persist->num_vfs + 1; i++) {
2815 struct mlx4_active_ports actv_ports =
2816 mlx4_get_active_ports(dev, i);
2817 if (test_bit(port - 1, actv_ports.ports))
2818 set_bit(i, slaves_pport.slaves);
2819 }
2820
2821 return slaves_pport;
2822 }
2823 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport);
2824
2825 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv(
2826 struct mlx4_dev *dev,
2827 const struct mlx4_active_ports *crit_ports)
2828 {
2829 unsigned i;
2830 struct mlx4_slaves_pport slaves_pport;
2831
2832 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2833
2834 for (i = 0; i < dev->persist->num_vfs + 1; i++) {
2835 struct mlx4_active_ports actv_ports =
2836 mlx4_get_active_ports(dev, i);
2837 if (bitmap_equal(crit_ports->ports, actv_ports.ports,
2838 dev->caps.num_ports))
2839 set_bit(i, slaves_pport.slaves);
2840 }
2841
2842 return slaves_pport;
2843 }
2844 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv);
2845
2846 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port)
2847 {
2848 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2849 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports)
2850 + 1;
2851 int max_port = min_port +
2852 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2853
2854 if (port < min_port)
2855 port = min_port;
2856 else if (port >= max_port)
2857 port = max_port - 1;
2858
2859 return port;
2860 }
2861
2862 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port,
2863 int max_tx_rate)
2864 {
2865 int i;
2866 int err;
2867 struct mlx4_qos_manager *port_qos;
2868 struct mlx4_dev *dev = &priv->dev;
2869 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP];
2870
2871 port_qos = &priv->mfunc.master.qos_ctl[port];
2872 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP);
2873
2874 if (slave > port_qos->num_of_qos_vfs) {
2875 mlx4_info(dev, "No availible VPP resources for this VF\n");
2876 return -EINVAL;
2877 }
2878
2879 /* Query for default QoS values from Vport 0 is needed */
2880 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos);
2881 if (err) {
2882 mlx4_info(dev, "Failed to query Vport 0 QoS values\n");
2883 return err;
2884 }
2885
2886 for (i = 0; i < MLX4_NUM_UP; i++) {
2887 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) {
2888 vpp_qos[i].max_avg_bw = max_tx_rate;
2889 vpp_qos[i].enable = 1;
2890 } else {
2891 /* if user supplied tx_rate == 0, meaning no rate limit
2892 * configuration is required. so we are leaving the
2893 * value of max_avg_bw as queried from Vport 0.
2894 */
2895 vpp_qos[i].enable = 0;
2896 }
2897 }
2898
2899 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos);
2900 if (err) {
2901 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave);
2902 return err;
2903 }
2904
2905 return 0;
2906 }
2907
2908 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port,
2909 struct mlx4_vport_state *vf_admin)
2910 {
2911 struct mlx4_qos_manager *info;
2912 struct mlx4_priv *priv = mlx4_priv(dev);
2913
2914 if (!mlx4_is_master(dev) ||
2915 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP))
2916 return false;
2917
2918 info = &priv->mfunc.master.qos_ctl[port];
2919
2920 if (vf_admin->default_vlan != MLX4_VGT &&
2921 test_bit(vf_admin->default_qos, info->priority_bm))
2922 return true;
2923
2924 return false;
2925 }
2926
2927 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port,
2928 struct mlx4_vport_state *vf_admin,
2929 int vlan, int qos)
2930 {
2931 struct mlx4_vport_state dummy_admin = {0};
2932
2933 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) ||
2934 !vf_admin->tx_rate)
2935 return true;
2936
2937 dummy_admin.default_qos = qos;
2938 dummy_admin.default_vlan = vlan;
2939
2940 /* VF wants to move to other VST state which is valid with current
2941 * rate limit. Either differnt default vlan in VST or other
2942 * supported QoS priority. Otherwise we don't allow this change when
2943 * the TX rate is still configured.
2944 */
2945 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin))
2946 return true;
2947
2948 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n",
2949 (vlan == MLX4_VGT) ? "VGT" : "VST");
2950
2951 if (vlan != MLX4_VGT)
2952 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos);
2953
2954 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n");
2955
2956 return false;
2957 }
2958
2959 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u8 *mac)
2960 {
2961 struct mlx4_priv *priv = mlx4_priv(dev);
2962 struct mlx4_vport_state *s_info;
2963 int slave;
2964
2965 if (!mlx4_is_master(dev))
2966 return -EPROTONOSUPPORT;
2967
2968 if (is_multicast_ether_addr(mac))
2969 return -EINVAL;
2970
2971 slave = mlx4_get_slave_indx(dev, vf);
2972 if (slave < 0)
2973 return -EINVAL;
2974
2975 port = mlx4_slaves_closest_port(dev, slave, port);
2976 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2977
2978 if (s_info->spoofchk && is_zero_ether_addr(mac)) {
2979 mlx4_info(dev, "MAC invalidation is not allowed when spoofchk is on\n");
2980 return -EPERM;
2981 }
2982
2983 s_info->mac = mlx4_mac_to_u64(mac);
2984 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n",
2985 vf, port, s_info->mac);
2986 return 0;
2987 }
2988 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
2989
2990
2991 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos,
2992 __be16 proto)
2993 {
2994 struct mlx4_priv *priv = mlx4_priv(dev);
2995 struct mlx4_vport_state *vf_admin;
2996 struct mlx4_slave_state *slave_state;
2997 struct mlx4_vport_oper_state *vf_oper;
2998 int slave;
2999
3000 if ((!mlx4_is_master(dev)) ||
3001 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL))
3002 return -EPROTONOSUPPORT;
3003
3004 if ((vlan > 4095) || (qos > 7))
3005 return -EINVAL;
3006
3007 if (proto == htons(ETH_P_8021AD) &&
3008 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP))
3009 return -EPROTONOSUPPORT;
3010
3011 if (proto != htons(ETH_P_8021Q) &&
3012 proto != htons(ETH_P_8021AD))
3013 return -EINVAL;
3014
3015 if ((proto == htons(ETH_P_8021AD)) &&
3016 ((vlan == 0) || (vlan == MLX4_VGT)))
3017 return -EINVAL;
3018
3019 slave = mlx4_get_slave_indx(dev, vf);
3020 if (slave < 0)
3021 return -EINVAL;
3022
3023 slave_state = &priv->mfunc.master.slave_state[slave];
3024 if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) &&
3025 (!slave_state->vst_qinq_supported)) {
3026 mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf);
3027 return -EPROTONOSUPPORT;
3028 }
3029 port = mlx4_slaves_closest_port(dev, slave, port);
3030 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
3031 vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
3032
3033 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos))
3034 return -EPERM;
3035
3036 if ((0 == vlan) && (0 == qos))
3037 vf_admin->default_vlan = MLX4_VGT;
3038 else
3039 vf_admin->default_vlan = vlan;
3040 vf_admin->default_qos = qos;
3041 vf_admin->vlan_proto = proto;
3042
3043 /* If rate was configured prior to VST, we saved the configured rate
3044 * in vf_admin->rate and now, if priority supported we enforce the QoS
3045 */
3046 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) &&
3047 vf_admin->tx_rate)
3048 vf_admin->qos_vport = slave;
3049
3050 /* Try to activate new vf state without restart,
3051 * this option is not supported while moving to VST QinQ mode.
3052 */
3053 if ((proto == htons(ETH_P_8021AD) &&
3054 vf_oper->state.vlan_proto != proto) ||
3055 mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
3056 mlx4_info(dev,
3057 "updating vf %d port %d config will take effect on next VF restart\n",
3058 vf, port);
3059 return 0;
3060 }
3061 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan);
3062
3063 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate,
3064 int max_tx_rate)
3065 {
3066 int err;
3067 int slave;
3068 struct mlx4_vport_state *vf_admin;
3069 struct mlx4_priv *priv = mlx4_priv(dev);
3070
3071 if (!mlx4_is_master(dev) ||
3072 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP))
3073 return -EPROTONOSUPPORT;
3074
3075 if (min_tx_rate) {
3076 mlx4_info(dev, "Minimum BW share not supported\n");
3077 return -EPROTONOSUPPORT;
3078 }
3079
3080 slave = mlx4_get_slave_indx(dev, vf);
3081 if (slave < 0)
3082 return -EINVAL;
3083
3084 port = mlx4_slaves_closest_port(dev, slave, port);
3085 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
3086
3087 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate);
3088 if (err) {
3089 mlx4_info(dev, "vf %d failed to set rate %d\n", vf,
3090 max_tx_rate);
3091 return err;
3092 }
3093
3094 vf_admin->tx_rate = max_tx_rate;
3095 /* if VF is not in supported mode (VST with supported prio),
3096 * we do not change vport configuration for its QPs, but save
3097 * the rate, so it will be enforced when it moves to supported
3098 * mode next time.
3099 */
3100 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) {
3101 mlx4_info(dev,
3102 "rate set for VF %d when not in valid state\n", vf);
3103
3104 if (vf_admin->default_vlan != MLX4_VGT)
3105 mlx4_info(dev, "VST priority not supported by QoS\n");
3106 else
3107 mlx4_info(dev, "VF in VGT mode (needed VST)\n");
3108
3109 mlx4_info(dev,
3110 "rate %d take affect when VF moves to valid state\n",
3111 max_tx_rate);
3112 return 0;
3113 }
3114
3115 /* If user sets rate 0 assigning default vport for its QPs */
3116 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT;
3117
3118 if (priv->mfunc.master.slave_state[slave].active &&
3119 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)
3120 mlx4_master_immediate_activate_vlan_qos(priv, slave, port);
3121
3122 return 0;
3123 }
3124 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate);
3125
3126 /* mlx4_get_slave_default_vlan -
3127 * return true if VST ( default vlan)
3128 * if VST, will return vlan & qos (if not NULL)
3129 */
3130 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave,
3131 u16 *vlan, u8 *qos)
3132 {
3133 struct mlx4_vport_oper_state *vp_oper;
3134 struct mlx4_priv *priv;
3135
3136 priv = mlx4_priv(dev);
3137 port = mlx4_slaves_closest_port(dev, slave, port);
3138 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
3139
3140 if (MLX4_VGT != vp_oper->state.default_vlan) {
3141 if (vlan)
3142 *vlan = vp_oper->state.default_vlan;
3143 if (qos)
3144 *qos = vp_oper->state.default_qos;
3145 return true;
3146 }
3147 return false;
3148 }
3149 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan);
3150
3151 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting)
3152 {
3153 struct mlx4_priv *priv = mlx4_priv(dev);
3154 struct mlx4_vport_state *s_info;
3155 int slave;
3156 u8 mac[ETH_ALEN];
3157
3158 if ((!mlx4_is_master(dev)) ||
3159 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM))
3160 return -EPROTONOSUPPORT;
3161
3162 slave = mlx4_get_slave_indx(dev, vf);
3163 if (slave < 0)
3164 return -EINVAL;
3165
3166 port = mlx4_slaves_closest_port(dev, slave, port);
3167 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3168
3169 mlx4_u64_to_mac(mac, s_info->mac);
3170 if (setting && !is_valid_ether_addr(mac)) {
3171 mlx4_info(dev, "Illegal MAC with spoofchk\n");
3172 return -EPERM;
3173 }
3174
3175 s_info->spoofchk = setting;
3176
3177 return 0;
3178 }
3179 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk);
3180
3181 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf)
3182 {
3183 struct mlx4_priv *priv = mlx4_priv(dev);
3184 struct mlx4_vport_state *s_info;
3185 int slave;
3186
3187 if (!mlx4_is_master(dev))
3188 return -EPROTONOSUPPORT;
3189
3190 slave = mlx4_get_slave_indx(dev, vf);
3191 if (slave < 0)
3192 return -EINVAL;
3193
3194 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3195 ivf->vf = vf;
3196
3197 /* need to convert it to a func */
3198 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff);
3199 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff);
3200 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff);
3201 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff);
3202 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff);
3203 ivf->mac[5] = ((s_info->mac) & 0xff);
3204
3205 ivf->vlan = s_info->default_vlan;
3206 ivf->qos = s_info->default_qos;
3207 ivf->vlan_proto = s_info->vlan_proto;
3208
3209 if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info))
3210 ivf->max_tx_rate = s_info->tx_rate;
3211 else
3212 ivf->max_tx_rate = 0;
3213
3214 ivf->min_tx_rate = 0;
3215 ivf->spoofchk = s_info->spoofchk;
3216 ivf->linkstate = s_info->link_state;
3217
3218 return 0;
3219 }
3220 EXPORT_SYMBOL_GPL(mlx4_get_vf_config);
3221
3222 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state)
3223 {
3224 struct mlx4_priv *priv = mlx4_priv(dev);
3225 struct mlx4_vport_state *s_info;
3226 int slave;
3227 u8 link_stat_event;
3228
3229 slave = mlx4_get_slave_indx(dev, vf);
3230 if (slave < 0)
3231 return -EINVAL;
3232
3233 port = mlx4_slaves_closest_port(dev, slave, port);
3234 switch (link_state) {
3235 case IFLA_VF_LINK_STATE_AUTO:
3236 /* get current link state */
3237 if (!priv->sense.do_sense_port[port])
3238 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
3239 else
3240 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
3241 break;
3242
3243 case IFLA_VF_LINK_STATE_ENABLE:
3244 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
3245 break;
3246
3247 case IFLA_VF_LINK_STATE_DISABLE:
3248 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
3249 break;
3250
3251 default:
3252 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n",
3253 link_state, slave, port);
3254 return -EINVAL;
3255 };
3256 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3257 s_info->link_state = link_state;
3258
3259 /* send event */
3260 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event);
3261
3262 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
3263 mlx4_dbg(dev,
3264 "updating vf %d port %d no link state HW enforcment\n",
3265 vf, port);
3266 return 0;
3267 }
3268 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state);
3269
3270 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index,
3271 struct mlx4_counter *counter_stats, int reset)
3272 {
3273 struct mlx4_cmd_mailbox *mailbox = NULL;
3274 struct mlx4_counter *tmp_counter;
3275 int err;
3276 u32 if_stat_in_mod;
3277
3278 if (!counter_stats)
3279 return -EINVAL;
3280
3281 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev))
3282 return 0;
3283
3284 mailbox = mlx4_alloc_cmd_mailbox(dev);
3285 if (IS_ERR(mailbox))
3286 return PTR_ERR(mailbox);
3287
3288 memset(mailbox->buf, 0, sizeof(struct mlx4_counter));
3289 if_stat_in_mod = counter_index;
3290 if (reset)
3291 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET;
3292 err = mlx4_cmd_box(dev, 0, mailbox->dma,
3293 if_stat_in_mod, 0,
3294 MLX4_CMD_QUERY_IF_STAT,
3295 MLX4_CMD_TIME_CLASS_C,
3296 MLX4_CMD_NATIVE);
3297 if (err) {
3298 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n",
3299 __func__, counter_index);
3300 goto if_stat_out;
3301 }
3302 tmp_counter = (struct mlx4_counter *)mailbox->buf;
3303 counter_stats->counter_mode = tmp_counter->counter_mode;
3304 if (counter_stats->counter_mode == 0) {
3305 counter_stats->rx_frames =
3306 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) +
3307 be64_to_cpu(tmp_counter->rx_frames));
3308 counter_stats->tx_frames =
3309 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) +
3310 be64_to_cpu(tmp_counter->tx_frames));
3311 counter_stats->rx_bytes =
3312 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) +
3313 be64_to_cpu(tmp_counter->rx_bytes));
3314 counter_stats->tx_bytes =
3315 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) +
3316 be64_to_cpu(tmp_counter->tx_bytes));
3317 }
3318
3319 if_stat_out:
3320 mlx4_free_cmd_mailbox(dev, mailbox);
3321
3322 return err;
3323 }
3324 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats);
3325
3326 int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx,
3327 struct ifla_vf_stats *vf_stats)
3328 {
3329 struct mlx4_counter tmp_vf_stats;
3330 int slave;
3331 int err = 0;
3332
3333 if (!vf_stats)
3334 return -EINVAL;
3335
3336 if (!mlx4_is_master(dev))
3337 return -EPROTONOSUPPORT;
3338
3339 slave = mlx4_get_slave_indx(dev, vf_idx);
3340 if (slave < 0)
3341 return -EINVAL;
3342
3343 port = mlx4_slaves_closest_port(dev, slave, port);
3344 err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats);
3345 if (!err && tmp_vf_stats.counter_mode == 0) {
3346 vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames);
3347 vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames);
3348 vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes);
3349 vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes);
3350 }
3351
3352 return err;
3353 }
3354 EXPORT_SYMBOL_GPL(mlx4_get_vf_stats);
3355
3356 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port)
3357 {
3358 struct mlx4_priv *priv = mlx4_priv(dev);
3359
3360 if (slave < 1 || slave >= dev->num_slaves ||
3361 port < 1 || port > MLX4_MAX_PORTS)
3362 return 0;
3363
3364 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] ==
3365 MLX4_VF_SMI_ENABLED;
3366 }
3367 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled);
3368
3369 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port)
3370 {
3371 struct mlx4_priv *priv = mlx4_priv(dev);
3372
3373 if (slave == mlx4_master_func_num(dev))
3374 return 1;
3375
3376 if (slave < 1 || slave >= dev->num_slaves ||
3377 port < 1 || port > MLX4_MAX_PORTS)
3378 return 0;
3379
3380 return priv->mfunc.master.vf_admin[slave].enable_smi[port] ==
3381 MLX4_VF_SMI_ENABLED;
3382 }
3383 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin);
3384
3385 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
3386 int enabled)
3387 {
3388 struct mlx4_priv *priv = mlx4_priv(dev);
3389 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
3390 &priv->dev, slave);
3391 int min_port = find_first_bit(actv_ports.ports,
3392 priv->dev.caps.num_ports) + 1;
3393 int max_port = min_port - 1 +
3394 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
3395
3396 if (slave == mlx4_master_func_num(dev))
3397 return 0;
3398
3399 if (slave < 1 || slave >= dev->num_slaves ||
3400 port < 1 || port > MLX4_MAX_PORTS ||
3401 enabled < 0 || enabled > 1)
3402 return -EINVAL;
3403
3404 if (min_port == max_port && dev->caps.num_ports > 1) {
3405 mlx4_info(dev, "SMI access disallowed for single ported VFs\n");
3406 return -EPROTONOSUPPORT;
3407 }
3408
3409 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled;
3410 return 0;
3411 }
3412 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin);
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