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net/mlx4_core: Introduce ACCESS_REG CMD and eth_prot_ctrl dev cap
[linux-2.6/btrfs-unstable.git] / drivers / net / ethernet / mellanox / mlx4 / cmd.c
blob916459effcfa9060de816423832fccfca1d3101b
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
46 #include <asm/io.h>
47
48 #include "mlx4.h"
49 #include "fw.h"
50
51 #define CMD_POLL_TOKEN 0xffff
52 #define INBOX_MASK 0xffffffffffffff00ULL
53
54 #define CMD_CHAN_VER 1
55 #define CMD_CHAN_IF_REV 1
56
57 enum {
58 /* command completed successfully: */
59 CMD_STAT_OK = 0x00,
60 /* Internal error (such as a bus error) occurred while processing command: */
61 CMD_STAT_INTERNAL_ERR = 0x01,
62 /* Operation/command not supported or opcode modifier not supported: */
63 CMD_STAT_BAD_OP = 0x02,
64 /* Parameter not supported or parameter out of range: */
65 CMD_STAT_BAD_PARAM = 0x03,
66 /* System not enabled or bad system state: */
67 CMD_STAT_BAD_SYS_STATE = 0x04,
68 /* Attempt to access reserved or unallocaterd resource: */
69 CMD_STAT_BAD_RESOURCE = 0x05,
70 /* Requested resource is currently executing a command, or is otherwise busy: */
71 CMD_STAT_RESOURCE_BUSY = 0x06,
72 /* Required capability exceeds device limits: */
73 CMD_STAT_EXCEED_LIM = 0x08,
74 /* Resource is not in the appropriate state or ownership: */
75 CMD_STAT_BAD_RES_STATE = 0x09,
76 /* Index out of range: */
77 CMD_STAT_BAD_INDEX = 0x0a,
78 /* FW image corrupted: */
79 CMD_STAT_BAD_NVMEM = 0x0b,
80 /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */
81 CMD_STAT_ICM_ERROR = 0x0c,
82 /* Attempt to modify a QP/EE which is not in the presumed state: */
83 CMD_STAT_BAD_QP_STATE = 0x10,
84 /* Bad segment parameters (Address/Size): */
85 CMD_STAT_BAD_SEG_PARAM = 0x20,
86 /* Memory Region has Memory Windows bound to: */
87 CMD_STAT_REG_BOUND = 0x21,
88 /* HCA local attached memory not present: */
89 CMD_STAT_LAM_NOT_PRE = 0x22,
90 /* Bad management packet (silently discarded): */
91 CMD_STAT_BAD_PKT = 0x30,
92 /* More outstanding CQEs in CQ than new CQ size: */
93 CMD_STAT_BAD_SIZE = 0x40,
94 /* Multi Function device support required: */
95 CMD_STAT_MULTI_FUNC_REQ = 0x50,
96 };
97
98 enum {
99 HCR_IN_PARAM_OFFSET = 0x00,
100 HCR_IN_MODIFIER_OFFSET = 0x08,
101 HCR_OUT_PARAM_OFFSET = 0x0c,
102 HCR_TOKEN_OFFSET = 0x14,
103 HCR_STATUS_OFFSET = 0x18,
104
105 HCR_OPMOD_SHIFT = 12,
106 HCR_T_BIT = 21,
107 HCR_E_BIT = 22,
108 HCR_GO_BIT = 23
109 };
110
111 enum {
112 GO_BIT_TIMEOUT_MSECS = 10000
113 };
114
115 enum mlx4_vlan_transition {
116 MLX4_VLAN_TRANSITION_VST_VST = 0,
117 MLX4_VLAN_TRANSITION_VST_VGT = 1,
118 MLX4_VLAN_TRANSITION_VGT_VST = 2,
119 MLX4_VLAN_TRANSITION_VGT_VGT = 3,
120 };
121
122
123 struct mlx4_cmd_context {
124 struct completion done;
125 int result;
126 int next;
127 u64 out_param;
128 u16 token;
129 u8 fw_status;
130 };
131
132 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave,
133 struct mlx4_vhcr_cmd *in_vhcr);
134
135 static int mlx4_status_to_errno(u8 status)
136 {
137 static const int trans_table[] = {
138 [CMD_STAT_INTERNAL_ERR] = -EIO,
139 [CMD_STAT_BAD_OP] = -EPERM,
140 [CMD_STAT_BAD_PARAM] = -EINVAL,
141 [CMD_STAT_BAD_SYS_STATE] = -ENXIO,
142 [CMD_STAT_BAD_RESOURCE] = -EBADF,
143 [CMD_STAT_RESOURCE_BUSY] = -EBUSY,
144 [CMD_STAT_EXCEED_LIM] = -ENOMEM,
145 [CMD_STAT_BAD_RES_STATE] = -EBADF,
146 [CMD_STAT_BAD_INDEX] = -EBADF,
147 [CMD_STAT_BAD_NVMEM] = -EFAULT,
148 [CMD_STAT_ICM_ERROR] = -ENFILE,
149 [CMD_STAT_BAD_QP_STATE] = -EINVAL,
150 [CMD_STAT_BAD_SEG_PARAM] = -EFAULT,
151 [CMD_STAT_REG_BOUND] = -EBUSY,
152 [CMD_STAT_LAM_NOT_PRE] = -EAGAIN,
153 [CMD_STAT_BAD_PKT] = -EINVAL,
154 [CMD_STAT_BAD_SIZE] = -ENOMEM,
155 [CMD_STAT_MULTI_FUNC_REQ] = -EACCES,
156 };
157
158 if (status >= ARRAY_SIZE(trans_table) ||
159 (status != CMD_STAT_OK && trans_table[status] == 0))
160 return -EIO;
161
162 return trans_table[status];
163 }
164
165 static u8 mlx4_errno_to_status(int errno)
166 {
167 switch (errno) {
168 case -EPERM:
169 return CMD_STAT_BAD_OP;
170 case -EINVAL:
171 return CMD_STAT_BAD_PARAM;
172 case -ENXIO:
173 return CMD_STAT_BAD_SYS_STATE;
174 case -EBUSY:
175 return CMD_STAT_RESOURCE_BUSY;
176 case -ENOMEM:
177 return CMD_STAT_EXCEED_LIM;
178 case -ENFILE:
179 return CMD_STAT_ICM_ERROR;
180 default:
181 return CMD_STAT_INTERNAL_ERR;
182 }
183 }
184
185 static int comm_pending(struct mlx4_dev *dev)
186 {
187 struct mlx4_priv *priv = mlx4_priv(dev);
188 u32 status = readl(&priv->mfunc.comm->slave_read);
189
190 return (swab32(status) >> 31) != priv->cmd.comm_toggle;
191 }
192
193 static void mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param)
194 {
195 struct mlx4_priv *priv = mlx4_priv(dev);
196 u32 val;
197
198 priv->cmd.comm_toggle ^= 1;
199 val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31);
200 __raw_writel((__force u32) cpu_to_be32(val),
201 &priv->mfunc.comm->slave_write);
202 mmiowb();
203 }
204
205 static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param,
206 unsigned long timeout)
207 {
208 struct mlx4_priv *priv = mlx4_priv(dev);
209 unsigned long end;
210 int err = 0;
211 int ret_from_pending = 0;
212
213 /* First, verify that the master reports correct status */
214 if (comm_pending(dev)) {
215 mlx4_warn(dev, "Communication channel is not idle - my toggle is %d (cmd:0x%x)\n",
216 priv->cmd.comm_toggle, cmd);
217 return -EAGAIN;
218 }
219
220 /* Write command */
221 down(&priv->cmd.poll_sem);
222 mlx4_comm_cmd_post(dev, cmd, param);
223
224 end = msecs_to_jiffies(timeout) + jiffies;
225 while (comm_pending(dev) && time_before(jiffies, end))
226 cond_resched();
227 ret_from_pending = comm_pending(dev);
228 if (ret_from_pending) {
229 /* check if the slave is trying to boot in the middle of
230 * FLR process. The only non-zero result in the RESET command
231 * is MLX4_DELAY_RESET_SLAVE*/
232 if ((MLX4_COMM_CMD_RESET == cmd)) {
233 err = MLX4_DELAY_RESET_SLAVE;
234 } else {
235 mlx4_warn(dev, "Communication channel timed out\n");
236 err = -ETIMEDOUT;
237 }
238 }
239
240 up(&priv->cmd.poll_sem);
241 return err;
242 }
243
244 static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 op,
245 u16 param, unsigned long timeout)
246 {
247 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
248 struct mlx4_cmd_context *context;
249 unsigned long end;
250 int err = 0;
251
252 down(&cmd->event_sem);
253
254 spin_lock(&cmd->context_lock);
255 BUG_ON(cmd->free_head < 0);
256 context = &cmd->context[cmd->free_head];
257 context->token += cmd->token_mask + 1;
258 cmd->free_head = context->next;
259 spin_unlock(&cmd->context_lock);
260
261 init_completion(&context->done);
262
263 mlx4_comm_cmd_post(dev, op, param);
264
265 if (!wait_for_completion_timeout(&context->done,
266 msecs_to_jiffies(timeout))) {
267 mlx4_warn(dev, "communication channel command 0x%x timed out\n",
268 op);
269 err = -EBUSY;
270 goto out;
271 }
272
273 err = context->result;
274 if (err && context->fw_status != CMD_STAT_MULTI_FUNC_REQ) {
275 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
276 op, context->fw_status);
277 goto out;
278 }
279
280 out:
281 /* wait for comm channel ready
282 * this is necessary for prevention the race
283 * when switching between event to polling mode
284 */
285 end = msecs_to_jiffies(timeout) + jiffies;
286 while (comm_pending(dev) && time_before(jiffies, end))
287 cond_resched();
288
289 spin_lock(&cmd->context_lock);
290 context->next = cmd->free_head;
291 cmd->free_head = context - cmd->context;
292 spin_unlock(&cmd->context_lock);
293
294 up(&cmd->event_sem);
295 return err;
296 }
297
298 int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param,
299 unsigned long timeout)
300 {
301 if (mlx4_priv(dev)->cmd.use_events)
302 return mlx4_comm_cmd_wait(dev, cmd, param, timeout);
303 return mlx4_comm_cmd_poll(dev, cmd, param, timeout);
304 }
305
306 static int cmd_pending(struct mlx4_dev *dev)
307 {
308 u32 status;
309
310 if (pci_channel_offline(dev->pdev))
311 return -EIO;
312
313 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
314
315 return (status & swab32(1 << HCR_GO_BIT)) ||
316 (mlx4_priv(dev)->cmd.toggle ==
317 !!(status & swab32(1 << HCR_T_BIT)));
318 }
319
320 static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
321 u32 in_modifier, u8 op_modifier, u16 op, u16 token,
322 int event)
323 {
324 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
325 u32 __iomem *hcr = cmd->hcr;
326 int ret = -EAGAIN;
327 unsigned long end;
328
329 mutex_lock(&cmd->hcr_mutex);
330
331 if (pci_channel_offline(dev->pdev)) {
332 /*
333 * Device is going through error recovery
334 * and cannot accept commands.
335 */
336 ret = -EIO;
337 goto out;
338 }
339
340 end = jiffies;
341 if (event)
342 end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
343
344 while (cmd_pending(dev)) {
345 if (pci_channel_offline(dev->pdev)) {
346 /*
347 * Device is going through error recovery
348 * and cannot accept commands.
349 */
350 ret = -EIO;
351 goto out;
352 }
353
354 if (time_after_eq(jiffies, end)) {
355 mlx4_err(dev, "%s:cmd_pending failed\n", __func__);
356 goto out;
357 }
358 cond_resched();
359 }
360
361 /*
362 * We use writel (instead of something like memcpy_toio)
363 * because writes of less than 32 bits to the HCR don't work
364 * (and some architectures such as ia64 implement memcpy_toio
365 * in terms of writeb).
366 */
367 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0);
368 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1);
369 __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2);
370 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3);
371 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4);
372 __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5);
373
374 /* __raw_writel may not order writes. */
375 wmb();
376
377 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
378 (cmd->toggle << HCR_T_BIT) |
379 (event ? (1 << HCR_E_BIT) : 0) |
380 (op_modifier << HCR_OPMOD_SHIFT) |
381 op), hcr + 6);
382
383 /*
384 * Make sure that our HCR writes don't get mixed in with
385 * writes from another CPU starting a FW command.
386 */
387 mmiowb();
388
389 cmd->toggle = cmd->toggle ^ 1;
390
391 ret = 0;
392
393 out:
394 mutex_unlock(&cmd->hcr_mutex);
395 return ret;
396 }
397
398 static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
399 int out_is_imm, u32 in_modifier, u8 op_modifier,
400 u16 op, unsigned long timeout)
401 {
402 struct mlx4_priv *priv = mlx4_priv(dev);
403 struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr;
404 int ret;
405
406 mutex_lock(&priv->cmd.slave_cmd_mutex);
407
408 vhcr->in_param = cpu_to_be64(in_param);
409 vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0;
410 vhcr->in_modifier = cpu_to_be32(in_modifier);
411 vhcr->opcode = cpu_to_be16((((u16) op_modifier) << 12) | (op & 0xfff));
412 vhcr->token = cpu_to_be16(CMD_POLL_TOKEN);
413 vhcr->status = 0;
414 vhcr->flags = !!(priv->cmd.use_events) << 6;
415
416 if (mlx4_is_master(dev)) {
417 ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr);
418 if (!ret) {
419 if (out_is_imm) {
420 if (out_param)
421 *out_param =
422 be64_to_cpu(vhcr->out_param);
423 else {
424 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
425 op);
426 vhcr->status = CMD_STAT_BAD_PARAM;
427 }
428 }
429 ret = mlx4_status_to_errno(vhcr->status);
430 }
431 } else {
432 ret = mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_POST, 0,
433 MLX4_COMM_TIME + timeout);
434 if (!ret) {
435 if (out_is_imm) {
436 if (out_param)
437 *out_param =
438 be64_to_cpu(vhcr->out_param);
439 else {
440 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
441 op);
442 vhcr->status = CMD_STAT_BAD_PARAM;
443 }
444 }
445 ret = mlx4_status_to_errno(vhcr->status);
446 } else
447 mlx4_err(dev, "failed execution of VHCR_POST command opcode 0x%x\n",
448 op);
449 }
450
451 mutex_unlock(&priv->cmd.slave_cmd_mutex);
452 return ret;
453 }
454
455 static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
456 int out_is_imm, u32 in_modifier, u8 op_modifier,
457 u16 op, unsigned long timeout)
458 {
459 struct mlx4_priv *priv = mlx4_priv(dev);
460 void __iomem *hcr = priv->cmd.hcr;
461 int err = 0;
462 unsigned long end;
463 u32 stat;
464
465 down(&priv->cmd.poll_sem);
466
467 if (pci_channel_offline(dev->pdev)) {
468 /*
469 * Device is going through error recovery
470 * and cannot accept commands.
471 */
472 err = -EIO;
473 goto out;
474 }
475
476 if (out_is_imm && !out_param) {
477 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
478 op);
479 err = -EINVAL;
480 goto out;
481 }
482
483 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
484 in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
485 if (err)
486 goto out;
487
488 end = msecs_to_jiffies(timeout) + jiffies;
489 while (cmd_pending(dev) && time_before(jiffies, end)) {
490 if (pci_channel_offline(dev->pdev)) {
491 /*
492 * Device is going through error recovery
493 * and cannot accept commands.
494 */
495 err = -EIO;
496 goto out;
497 }
498
499 cond_resched();
500 }
501
502 if (cmd_pending(dev)) {
503 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
504 op);
505 err = -ETIMEDOUT;
506 goto out;
507 }
508
509 if (out_is_imm)
510 *out_param =
511 (u64) be32_to_cpu((__force __be32)
512 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
513 (u64) be32_to_cpu((__force __be32)
514 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4));
515 stat = be32_to_cpu((__force __be32)
516 __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24;
517 err = mlx4_status_to_errno(stat);
518 if (err)
519 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
520 op, stat);
521
522 out:
523 up(&priv->cmd.poll_sem);
524 return err;
525 }
526
527 void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param)
528 {
529 struct mlx4_priv *priv = mlx4_priv(dev);
530 struct mlx4_cmd_context *context =
531 &priv->cmd.context[token & priv->cmd.token_mask];
532
533 /* previously timed out command completing at long last */
534 if (token != context->token)
535 return;
536
537 context->fw_status = status;
538 context->result = mlx4_status_to_errno(status);
539 context->out_param = out_param;
540
541 complete(&context->done);
542 }
543
544 static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
545 int out_is_imm, u32 in_modifier, u8 op_modifier,
546 u16 op, unsigned long timeout)
547 {
548 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
549 struct mlx4_cmd_context *context;
550 int err = 0;
551
552 down(&cmd->event_sem);
553
554 spin_lock(&cmd->context_lock);
555 BUG_ON(cmd->free_head < 0);
556 context = &cmd->context[cmd->free_head];
557 context->token += cmd->token_mask + 1;
558 cmd->free_head = context->next;
559 spin_unlock(&cmd->context_lock);
560
561 if (out_is_imm && !out_param) {
562 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
563 op);
564 err = -EINVAL;
565 goto out;
566 }
567
568 init_completion(&context->done);
569
570 mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
571 in_modifier, op_modifier, op, context->token, 1);
572
573 if (!wait_for_completion_timeout(&context->done,
574 msecs_to_jiffies(timeout))) {
575 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
576 op);
577 err = -EBUSY;
578 goto out;
579 }
580
581 err = context->result;
582 if (err) {
583 /* Since we do not want to have this error message always
584 * displayed at driver start when there are ConnectX2 HCAs
585 * on the host, we deprecate the error message for this
586 * specific command/input_mod/opcode_mod/fw-status to be debug.
587 */
588 if (op == MLX4_CMD_SET_PORT && in_modifier == 1 &&
589 op_modifier == 0 && context->fw_status == CMD_STAT_BAD_SIZE)
590 mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n",
591 op, context->fw_status);
592 else
593 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
594 op, context->fw_status);
595 goto out;
596 }
597
598 if (out_is_imm)
599 *out_param = context->out_param;
600
601 out:
602 spin_lock(&cmd->context_lock);
603 context->next = cmd->free_head;
604 cmd->free_head = context - cmd->context;
605 spin_unlock(&cmd->context_lock);
606
607 up(&cmd->event_sem);
608 return err;
609 }
610
611 int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
612 int out_is_imm, u32 in_modifier, u8 op_modifier,
613 u16 op, unsigned long timeout, int native)
614 {
615 if (pci_channel_offline(dev->pdev))
616 return -EIO;
617
618 if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) {
619 if (mlx4_priv(dev)->cmd.use_events)
620 return mlx4_cmd_wait(dev, in_param, out_param,
621 out_is_imm, in_modifier,
622 op_modifier, op, timeout);
623 else
624 return mlx4_cmd_poll(dev, in_param, out_param,
625 out_is_imm, in_modifier,
626 op_modifier, op, timeout);
627 }
628 return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm,
629 in_modifier, op_modifier, op, timeout);
630 }
631 EXPORT_SYMBOL_GPL(__mlx4_cmd);
632
633
634 static int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev)
635 {
636 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL,
637 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
638 }
639
640 static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr,
641 int slave, u64 slave_addr,
642 int size, int is_read)
643 {
644 u64 in_param;
645 u64 out_param;
646
647 if ((slave_addr & 0xfff) | (master_addr & 0xfff) |
648 (slave & ~0x7f) | (size & 0xff)) {
649 mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx master_addr:0x%llx slave_id:%d size:%d\n",
650 slave_addr, master_addr, slave, size);
651 return -EINVAL;
652 }
653
654 if (is_read) {
655 in_param = (u64) slave | slave_addr;
656 out_param = (u64) dev->caps.function | master_addr;
657 } else {
658 in_param = (u64) dev->caps.function | master_addr;
659 out_param = (u64) slave | slave_addr;
660 }
661
662 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0,
663 MLX4_CMD_ACCESS_MEM,
664 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
665 }
666
667 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey,
668 struct mlx4_cmd_mailbox *inbox,
669 struct mlx4_cmd_mailbox *outbox)
670 {
671 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf);
672 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf);
673 int err;
674 int i;
675
676 if (index & 0x1f)
677 return -EINVAL;
678
679 in_mad->attr_mod = cpu_to_be32(index / 32);
680
681 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3,
682 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
683 MLX4_CMD_NATIVE);
684 if (err)
685 return err;
686
687 for (i = 0; i < 32; ++i)
688 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]);
689
690 return err;
691 }
692
693 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table,
694 struct mlx4_cmd_mailbox *inbox,
695 struct mlx4_cmd_mailbox *outbox)
696 {
697 int i;
698 int err;
699
700 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) {
701 err = query_pkey_block(dev, port, i, table + i, inbox, outbox);
702 if (err)
703 return err;
704 }
705
706 return 0;
707 }
708 #define PORT_CAPABILITY_LOCATION_IN_SMP 20
709 #define PORT_STATE_OFFSET 32
710
711 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf)
712 {
713 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP)
714 return IB_PORT_ACTIVE;
715 else
716 return IB_PORT_DOWN;
717 }
718
719 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
720 struct mlx4_vhcr *vhcr,
721 struct mlx4_cmd_mailbox *inbox,
722 struct mlx4_cmd_mailbox *outbox,
723 struct mlx4_cmd_info *cmd)
724 {
725 struct ib_smp *smp = inbox->buf;
726 u32 index;
727 u8 port;
728 u8 opcode_modifier;
729 u16 *table;
730 int err;
731 int vidx, pidx;
732 int network_view;
733 struct mlx4_priv *priv = mlx4_priv(dev);
734 struct ib_smp *outsmp = outbox->buf;
735 __be16 *outtab = (__be16 *)(outsmp->data);
736 __be32 slave_cap_mask;
737 __be64 slave_node_guid;
738
739 port = vhcr->in_modifier;
740
741 /* network-view bit is for driver use only, and should not be passed to FW */
742 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */
743 network_view = !!(vhcr->op_modifier & 0x8);
744
745 if (smp->base_version == 1 &&
746 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
747 smp->class_version == 1) {
748 /* host view is paravirtualized */
749 if (!network_view && smp->method == IB_MGMT_METHOD_GET) {
750 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) {
751 index = be32_to_cpu(smp->attr_mod);
752 if (port < 1 || port > dev->caps.num_ports)
753 return -EINVAL;
754 table = kcalloc(dev->caps.pkey_table_len[port], sizeof *table, GFP_KERNEL);
755 if (!table)
756 return -ENOMEM;
757 /* need to get the full pkey table because the paravirtualized
758 * pkeys may be scattered among several pkey blocks.
759 */
760 err = get_full_pkey_table(dev, port, table, inbox, outbox);
761 if (!err) {
762 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) {
763 pidx = priv->virt2phys_pkey[slave][port - 1][vidx];
764 outtab[vidx % 32] = cpu_to_be16(table[pidx]);
765 }
766 }
767 kfree(table);
768 return err;
769 }
770 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) {
771 /*get the slave specific caps:*/
772 /*do the command */
773 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
774 vhcr->in_modifier, opcode_modifier,
775 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
776 /* modify the response for slaves */
777 if (!err && slave != mlx4_master_func_num(dev)) {
778 u8 *state = outsmp->data + PORT_STATE_OFFSET;
779
780 *state = (*state & 0xf0) | vf_port_state(dev, port, slave);
781 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
782 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4);
783 }
784 return err;
785 }
786 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) {
787 /* compute slave's gid block */
788 smp->attr_mod = cpu_to_be32(slave / 8);
789 /* execute cmd */
790 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
791 vhcr->in_modifier, opcode_modifier,
792 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
793 if (!err) {
794 /* if needed, move slave gid to index 0 */
795 if (slave % 8)
796 memcpy(outsmp->data,
797 outsmp->data + (slave % 8) * 8, 8);
798 /* delete all other gids */
799 memset(outsmp->data + 8, 0, 56);
800 }
801 return err;
802 }
803 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) {
804 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
805 vhcr->in_modifier, opcode_modifier,
806 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
807 if (!err) {
808 slave_node_guid = mlx4_get_slave_node_guid(dev, slave);
809 memcpy(outsmp->data + 12, &slave_node_guid, 8);
810 }
811 return err;
812 }
813 }
814 }
815
816 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs.
817 * These are the MADs used by ib verbs (such as ib_query_gids).
818 */
819 if (slave != mlx4_master_func_num(dev) &&
820 !mlx4_vf_smi_enabled(dev, slave, port)) {
821 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
822 smp->method == IB_MGMT_METHOD_GET) || network_view) {
823 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",
824 slave, smp->method, smp->mgmt_class,
825 network_view ? "Network" : "Host",
826 be16_to_cpu(smp->attr_id));
827 return -EPERM;
828 }
829 }
830
831 return mlx4_cmd_box(dev, inbox->dma, outbox->dma,
832 vhcr->in_modifier, opcode_modifier,
833 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
834 }
835
836 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave,
837 struct mlx4_vhcr *vhcr,
838 struct mlx4_cmd_mailbox *inbox,
839 struct mlx4_cmd_mailbox *outbox,
840 struct mlx4_cmd_info *cmd)
841 {
842 return -EPERM;
843 }
844
845 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave,
846 struct mlx4_vhcr *vhcr,
847 struct mlx4_cmd_mailbox *inbox,
848 struct mlx4_cmd_mailbox *outbox,
849 struct mlx4_cmd_info *cmd)
850 {
851 u64 in_param;
852 u64 out_param;
853 int err;
854
855 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param;
856 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param;
857 if (cmd->encode_slave_id) {
858 in_param &= 0xffffffffffffff00ll;
859 in_param |= slave;
860 }
861
862 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm,
863 vhcr->in_modifier, vhcr->op_modifier, vhcr->op,
864 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
865
866 if (cmd->out_is_imm)
867 vhcr->out_param = out_param;
868
869 return err;
870 }
871
872 static struct mlx4_cmd_info cmd_info[] = {
873 {
874 .opcode = MLX4_CMD_QUERY_FW,
875 .has_inbox = false,
876 .has_outbox = true,
877 .out_is_imm = false,
878 .encode_slave_id = false,
879 .verify = NULL,
880 .wrapper = mlx4_QUERY_FW_wrapper
881 },
882 {
883 .opcode = MLX4_CMD_QUERY_HCA,
884 .has_inbox = false,
885 .has_outbox = true,
886 .out_is_imm = false,
887 .encode_slave_id = false,
888 .verify = NULL,
889 .wrapper = NULL
890 },
891 {
892 .opcode = MLX4_CMD_QUERY_DEV_CAP,
893 .has_inbox = false,
894 .has_outbox = true,
895 .out_is_imm = false,
896 .encode_slave_id = false,
897 .verify = NULL,
898 .wrapper = mlx4_QUERY_DEV_CAP_wrapper
899 },
900 {
901 .opcode = MLX4_CMD_QUERY_FUNC_CAP,
902 .has_inbox = false,
903 .has_outbox = true,
904 .out_is_imm = false,
905 .encode_slave_id = false,
906 .verify = NULL,
907 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper
908 },
909 {
910 .opcode = MLX4_CMD_QUERY_ADAPTER,
911 .has_inbox = false,
912 .has_outbox = true,
913 .out_is_imm = false,
914 .encode_slave_id = false,
915 .verify = NULL,
916 .wrapper = NULL
917 },
918 {
919 .opcode = MLX4_CMD_INIT_PORT,
920 .has_inbox = false,
921 .has_outbox = false,
922 .out_is_imm = false,
923 .encode_slave_id = false,
924 .verify = NULL,
925 .wrapper = mlx4_INIT_PORT_wrapper
926 },
927 {
928 .opcode = MLX4_CMD_CLOSE_PORT,
929 .has_inbox = false,
930 .has_outbox = false,
931 .out_is_imm = false,
932 .encode_slave_id = false,
933 .verify = NULL,
934 .wrapper = mlx4_CLOSE_PORT_wrapper
935 },
936 {
937 .opcode = MLX4_CMD_QUERY_PORT,
938 .has_inbox = false,
939 .has_outbox = true,
940 .out_is_imm = false,
941 .encode_slave_id = false,
942 .verify = NULL,
943 .wrapper = mlx4_QUERY_PORT_wrapper
944 },
945 {
946 .opcode = MLX4_CMD_SET_PORT,
947 .has_inbox = true,
948 .has_outbox = false,
949 .out_is_imm = false,
950 .encode_slave_id = false,
951 .verify = NULL,
952 .wrapper = mlx4_SET_PORT_wrapper
953 },
954 {
955 .opcode = MLX4_CMD_MAP_EQ,
956 .has_inbox = false,
957 .has_outbox = false,
958 .out_is_imm = false,
959 .encode_slave_id = false,
960 .verify = NULL,
961 .wrapper = mlx4_MAP_EQ_wrapper
962 },
963 {
964 .opcode = MLX4_CMD_SW2HW_EQ,
965 .has_inbox = true,
966 .has_outbox = false,
967 .out_is_imm = false,
968 .encode_slave_id = true,
969 .verify = NULL,
970 .wrapper = mlx4_SW2HW_EQ_wrapper
971 },
972 {
973 .opcode = MLX4_CMD_HW_HEALTH_CHECK,
974 .has_inbox = false,
975 .has_outbox = false,
976 .out_is_imm = false,
977 .encode_slave_id = false,
978 .verify = NULL,
979 .wrapper = NULL
980 },
981 {
982 .opcode = MLX4_CMD_NOP,
983 .has_inbox = false,
984 .has_outbox = false,
985 .out_is_imm = false,
986 .encode_slave_id = false,
987 .verify = NULL,
988 .wrapper = NULL
989 },
990 {
991 .opcode = MLX4_CMD_CONFIG_DEV,
992 .has_inbox = false,
993 .has_outbox = false,
994 .out_is_imm = false,
995 .encode_slave_id = false,
996 .verify = NULL,
997 .wrapper = mlx4_CMD_EPERM_wrapper
998 },
999 {
1000 .opcode = MLX4_CMD_ALLOC_RES,
1001 .has_inbox = false,
1002 .has_outbox = false,
1003 .out_is_imm = true,
1004 .encode_slave_id = false,
1005 .verify = NULL,
1006 .wrapper = mlx4_ALLOC_RES_wrapper
1007 },
1008 {
1009 .opcode = MLX4_CMD_FREE_RES,
1010 .has_inbox = false,
1011 .has_outbox = false,
1012 .out_is_imm = false,
1013 .encode_slave_id = false,
1014 .verify = NULL,
1015 .wrapper = mlx4_FREE_RES_wrapper
1016 },
1017 {
1018 .opcode = MLX4_CMD_SW2HW_MPT,
1019 .has_inbox = true,
1020 .has_outbox = false,
1021 .out_is_imm = false,
1022 .encode_slave_id = true,
1023 .verify = NULL,
1024 .wrapper = mlx4_SW2HW_MPT_wrapper
1025 },
1026 {
1027 .opcode = MLX4_CMD_QUERY_MPT,
1028 .has_inbox = false,
1029 .has_outbox = true,
1030 .out_is_imm = false,
1031 .encode_slave_id = false,
1032 .verify = NULL,
1033 .wrapper = mlx4_QUERY_MPT_wrapper
1034 },
1035 {
1036 .opcode = MLX4_CMD_HW2SW_MPT,
1037 .has_inbox = false,
1038 .has_outbox = false,
1039 .out_is_imm = false,
1040 .encode_slave_id = false,
1041 .verify = NULL,
1042 .wrapper = mlx4_HW2SW_MPT_wrapper
1043 },
1044 {
1045 .opcode = MLX4_CMD_READ_MTT,
1046 .has_inbox = false,
1047 .has_outbox = true,
1048 .out_is_imm = false,
1049 .encode_slave_id = false,
1050 .verify = NULL,
1051 .wrapper = NULL
1052 },
1053 {
1054 .opcode = MLX4_CMD_WRITE_MTT,
1055 .has_inbox = true,
1056 .has_outbox = false,
1057 .out_is_imm = false,
1058 .encode_slave_id = false,
1059 .verify = NULL,
1060 .wrapper = mlx4_WRITE_MTT_wrapper
1061 },
1062 {
1063 .opcode = MLX4_CMD_SYNC_TPT,
1064 .has_inbox = true,
1065 .has_outbox = false,
1066 .out_is_imm = false,
1067 .encode_slave_id = false,
1068 .verify = NULL,
1069 .wrapper = NULL
1070 },
1071 {
1072 .opcode = MLX4_CMD_HW2SW_EQ,
1073 .has_inbox = false,
1074 .has_outbox = true,
1075 .out_is_imm = false,
1076 .encode_slave_id = true,
1077 .verify = NULL,
1078 .wrapper = mlx4_HW2SW_EQ_wrapper
1079 },
1080 {
1081 .opcode = MLX4_CMD_QUERY_EQ,
1082 .has_inbox = false,
1083 .has_outbox = true,
1084 .out_is_imm = false,
1085 .encode_slave_id = true,
1086 .verify = NULL,
1087 .wrapper = mlx4_QUERY_EQ_wrapper
1088 },
1089 {
1090 .opcode = MLX4_CMD_SW2HW_CQ,
1091 .has_inbox = true,
1092 .has_outbox = false,
1093 .out_is_imm = false,
1094 .encode_slave_id = true,
1095 .verify = NULL,
1096 .wrapper = mlx4_SW2HW_CQ_wrapper
1097 },
1098 {
1099 .opcode = MLX4_CMD_HW2SW_CQ,
1100 .has_inbox = false,
1101 .has_outbox = false,
1102 .out_is_imm = false,
1103 .encode_slave_id = false,
1104 .verify = NULL,
1105 .wrapper = mlx4_HW2SW_CQ_wrapper
1106 },
1107 {
1108 .opcode = MLX4_CMD_QUERY_CQ,
1109 .has_inbox = false,
1110 .has_outbox = true,
1111 .out_is_imm = false,
1112 .encode_slave_id = false,
1113 .verify = NULL,
1114 .wrapper = mlx4_QUERY_CQ_wrapper
1115 },
1116 {
1117 .opcode = MLX4_CMD_MODIFY_CQ,
1118 .has_inbox = true,
1119 .has_outbox = false,
1120 .out_is_imm = true,
1121 .encode_slave_id = false,
1122 .verify = NULL,
1123 .wrapper = mlx4_MODIFY_CQ_wrapper
1124 },
1125 {
1126 .opcode = MLX4_CMD_SW2HW_SRQ,
1127 .has_inbox = true,
1128 .has_outbox = false,
1129 .out_is_imm = false,
1130 .encode_slave_id = true,
1131 .verify = NULL,
1132 .wrapper = mlx4_SW2HW_SRQ_wrapper
1133 },
1134 {
1135 .opcode = MLX4_CMD_HW2SW_SRQ,
1136 .has_inbox = false,
1137 .has_outbox = false,
1138 .out_is_imm = false,
1139 .encode_slave_id = false,
1140 .verify = NULL,
1141 .wrapper = mlx4_HW2SW_SRQ_wrapper
1142 },
1143 {
1144 .opcode = MLX4_CMD_QUERY_SRQ,
1145 .has_inbox = false,
1146 .has_outbox = true,
1147 .out_is_imm = false,
1148 .encode_slave_id = false,
1149 .verify = NULL,
1150 .wrapper = mlx4_QUERY_SRQ_wrapper
1151 },
1152 {
1153 .opcode = MLX4_CMD_ARM_SRQ,
1154 .has_inbox = false,
1155 .has_outbox = false,
1156 .out_is_imm = false,
1157 .encode_slave_id = false,
1158 .verify = NULL,
1159 .wrapper = mlx4_ARM_SRQ_wrapper
1160 },
1161 {
1162 .opcode = MLX4_CMD_RST2INIT_QP,
1163 .has_inbox = true,
1164 .has_outbox = false,
1165 .out_is_imm = false,
1166 .encode_slave_id = true,
1167 .verify = NULL,
1168 .wrapper = mlx4_RST2INIT_QP_wrapper
1169 },
1170 {
1171 .opcode = MLX4_CMD_INIT2INIT_QP,
1172 .has_inbox = true,
1173 .has_outbox = false,
1174 .out_is_imm = false,
1175 .encode_slave_id = false,
1176 .verify = NULL,
1177 .wrapper = mlx4_INIT2INIT_QP_wrapper
1178 },
1179 {
1180 .opcode = MLX4_CMD_INIT2RTR_QP,
1181 .has_inbox = true,
1182 .has_outbox = false,
1183 .out_is_imm = false,
1184 .encode_slave_id = false,
1185 .verify = NULL,
1186 .wrapper = mlx4_INIT2RTR_QP_wrapper
1187 },
1188 {
1189 .opcode = MLX4_CMD_RTR2RTS_QP,
1190 .has_inbox = true,
1191 .has_outbox = false,
1192 .out_is_imm = false,
1193 .encode_slave_id = false,
1194 .verify = NULL,
1195 .wrapper = mlx4_RTR2RTS_QP_wrapper
1196 },
1197 {
1198 .opcode = MLX4_CMD_RTS2RTS_QP,
1199 .has_inbox = true,
1200 .has_outbox = false,
1201 .out_is_imm = false,
1202 .encode_slave_id = false,
1203 .verify = NULL,
1204 .wrapper = mlx4_RTS2RTS_QP_wrapper
1205 },
1206 {
1207 .opcode = MLX4_CMD_SQERR2RTS_QP,
1208 .has_inbox = true,
1209 .has_outbox = false,
1210 .out_is_imm = false,
1211 .encode_slave_id = false,
1212 .verify = NULL,
1213 .wrapper = mlx4_SQERR2RTS_QP_wrapper
1214 },
1215 {
1216 .opcode = MLX4_CMD_2ERR_QP,
1217 .has_inbox = false,
1218 .has_outbox = false,
1219 .out_is_imm = false,
1220 .encode_slave_id = false,
1221 .verify = NULL,
1222 .wrapper = mlx4_GEN_QP_wrapper
1223 },
1224 {
1225 .opcode = MLX4_CMD_RTS2SQD_QP,
1226 .has_inbox = false,
1227 .has_outbox = false,
1228 .out_is_imm = false,
1229 .encode_slave_id = false,
1230 .verify = NULL,
1231 .wrapper = mlx4_GEN_QP_wrapper
1232 },
1233 {
1234 .opcode = MLX4_CMD_SQD2SQD_QP,
1235 .has_inbox = true,
1236 .has_outbox = false,
1237 .out_is_imm = false,
1238 .encode_slave_id = false,
1239 .verify = NULL,
1240 .wrapper = mlx4_SQD2SQD_QP_wrapper
1241 },
1242 {
1243 .opcode = MLX4_CMD_SQD2RTS_QP,
1244 .has_inbox = true,
1245 .has_outbox = false,
1246 .out_is_imm = false,
1247 .encode_slave_id = false,
1248 .verify = NULL,
1249 .wrapper = mlx4_SQD2RTS_QP_wrapper
1250 },
1251 {
1252 .opcode = MLX4_CMD_2RST_QP,
1253 .has_inbox = false,
1254 .has_outbox = false,
1255 .out_is_imm = false,
1256 .encode_slave_id = false,
1257 .verify = NULL,
1258 .wrapper = mlx4_2RST_QP_wrapper
1259 },
1260 {
1261 .opcode = MLX4_CMD_QUERY_QP,
1262 .has_inbox = false,
1263 .has_outbox = true,
1264 .out_is_imm = false,
1265 .encode_slave_id = false,
1266 .verify = NULL,
1267 .wrapper = mlx4_GEN_QP_wrapper
1268 },
1269 {
1270 .opcode = MLX4_CMD_SUSPEND_QP,
1271 .has_inbox = false,
1272 .has_outbox = false,
1273 .out_is_imm = false,
1274 .encode_slave_id = false,
1275 .verify = NULL,
1276 .wrapper = mlx4_GEN_QP_wrapper
1277 },
1278 {
1279 .opcode = MLX4_CMD_UNSUSPEND_QP,
1280 .has_inbox = false,
1281 .has_outbox = false,
1282 .out_is_imm = false,
1283 .encode_slave_id = false,
1284 .verify = NULL,
1285 .wrapper = mlx4_GEN_QP_wrapper
1286 },
1287 {
1288 .opcode = MLX4_CMD_UPDATE_QP,
1289 .has_inbox = true,
1290 .has_outbox = false,
1291 .out_is_imm = false,
1292 .encode_slave_id = false,
1293 .verify = NULL,
1294 .wrapper = mlx4_UPDATE_QP_wrapper
1295 },
1296 {
1297 .opcode = MLX4_CMD_GET_OP_REQ,
1298 .has_inbox = false,
1299 .has_outbox = false,
1300 .out_is_imm = false,
1301 .encode_slave_id = false,
1302 .verify = NULL,
1303 .wrapper = mlx4_CMD_EPERM_wrapper,
1304 },
1305 {
1306 .opcode = MLX4_CMD_CONF_SPECIAL_QP,
1307 .has_inbox = false,
1308 .has_outbox = false,
1309 .out_is_imm = false,
1310 .encode_slave_id = false,
1311 .verify = NULL, /* XXX verify: only demux can do this */
1312 .wrapper = NULL
1313 },
1314 {
1315 .opcode = MLX4_CMD_MAD_IFC,
1316 .has_inbox = true,
1317 .has_outbox = true,
1318 .out_is_imm = false,
1319 .encode_slave_id = false,
1320 .verify = NULL,
1321 .wrapper = mlx4_MAD_IFC_wrapper
1322 },
1323 {
1324 .opcode = MLX4_CMD_MAD_DEMUX,
1325 .has_inbox = false,
1326 .has_outbox = false,
1327 .out_is_imm = false,
1328 .encode_slave_id = false,
1329 .verify = NULL,
1330 .wrapper = mlx4_CMD_EPERM_wrapper
1331 },
1332 {
1333 .opcode = MLX4_CMD_QUERY_IF_STAT,
1334 .has_inbox = false,
1335 .has_outbox = true,
1336 .out_is_imm = false,
1337 .encode_slave_id = false,
1338 .verify = NULL,
1339 .wrapper = mlx4_QUERY_IF_STAT_wrapper
1340 },
1341 {
1342 .opcode = MLX4_CMD_ACCESS_REG,
1343 .has_inbox = true,
1344 .has_outbox = true,
1345 .out_is_imm = false,
1346 .encode_slave_id = false,
1347 .verify = NULL,
1348 .wrapper = NULL,
1349 },
1350 /* Native multicast commands are not available for guests */
1351 {
1352 .opcode = MLX4_CMD_QP_ATTACH,
1353 .has_inbox = true,
1354 .has_outbox = false,
1355 .out_is_imm = false,
1356 .encode_slave_id = false,
1357 .verify = NULL,
1358 .wrapper = mlx4_QP_ATTACH_wrapper
1359 },
1360 {
1361 .opcode = MLX4_CMD_PROMISC,
1362 .has_inbox = false,
1363 .has_outbox = false,
1364 .out_is_imm = false,
1365 .encode_slave_id = false,
1366 .verify = NULL,
1367 .wrapper = mlx4_PROMISC_wrapper
1368 },
1369 /* Ethernet specific commands */
1370 {
1371 .opcode = MLX4_CMD_SET_VLAN_FLTR,
1372 .has_inbox = true,
1373 .has_outbox = false,
1374 .out_is_imm = false,
1375 .encode_slave_id = false,
1376 .verify = NULL,
1377 .wrapper = mlx4_SET_VLAN_FLTR_wrapper
1378 },
1379 {
1380 .opcode = MLX4_CMD_SET_MCAST_FLTR,
1381 .has_inbox = false,
1382 .has_outbox = false,
1383 .out_is_imm = false,
1384 .encode_slave_id = false,
1385 .verify = NULL,
1386 .wrapper = mlx4_SET_MCAST_FLTR_wrapper
1387 },
1388 {
1389 .opcode = MLX4_CMD_DUMP_ETH_STATS,
1390 .has_inbox = false,
1391 .has_outbox = true,
1392 .out_is_imm = false,
1393 .encode_slave_id = false,
1394 .verify = NULL,
1395 .wrapper = mlx4_DUMP_ETH_STATS_wrapper
1396 },
1397 {
1398 .opcode = MLX4_CMD_INFORM_FLR_DONE,
1399 .has_inbox = false,
1400 .has_outbox = false,
1401 .out_is_imm = false,
1402 .encode_slave_id = false,
1403 .verify = NULL,
1404 .wrapper = NULL
1405 },
1406 /* flow steering commands */
1407 {
1408 .opcode = MLX4_QP_FLOW_STEERING_ATTACH,
1409 .has_inbox = true,
1410 .has_outbox = false,
1411 .out_is_imm = true,
1412 .encode_slave_id = false,
1413 .verify = NULL,
1414 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper
1415 },
1416 {
1417 .opcode = MLX4_QP_FLOW_STEERING_DETACH,
1418 .has_inbox = false,
1419 .has_outbox = false,
1420 .out_is_imm = false,
1421 .encode_slave_id = false,
1422 .verify = NULL,
1423 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper
1424 },
1425 {
1426 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE,
1427 .has_inbox = false,
1428 .has_outbox = false,
1429 .out_is_imm = false,
1430 .encode_slave_id = false,
1431 .verify = NULL,
1432 .wrapper = mlx4_CMD_EPERM_wrapper
1433 },
1434 };
1435
1436 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave,
1437 struct mlx4_vhcr_cmd *in_vhcr)
1438 {
1439 struct mlx4_priv *priv = mlx4_priv(dev);
1440 struct mlx4_cmd_info *cmd = NULL;
1441 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr;
1442 struct mlx4_vhcr *vhcr;
1443 struct mlx4_cmd_mailbox *inbox = NULL;
1444 struct mlx4_cmd_mailbox *outbox = NULL;
1445 u64 in_param;
1446 u64 out_param;
1447 int ret = 0;
1448 int i;
1449 int err = 0;
1450
1451 /* Create sw representation of Virtual HCR */
1452 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL);
1453 if (!vhcr)
1454 return -ENOMEM;
1455
1456 /* DMA in the vHCR */
1457 if (!in_vhcr) {
1458 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave,
1459 priv->mfunc.master.slave_state[slave].vhcr_dma,
1460 ALIGN(sizeof(struct mlx4_vhcr_cmd),
1461 MLX4_ACCESS_MEM_ALIGN), 1);
1462 if (ret) {
1463 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n",
1464 __func__, ret);
1465 kfree(vhcr);
1466 return ret;
1467 }
1468 }
1469
1470 /* Fill SW VHCR fields */
1471 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param);
1472 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param);
1473 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier);
1474 vhcr->token = be16_to_cpu(vhcr_cmd->token);
1475 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff;
1476 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12);
1477 vhcr->e_bit = vhcr_cmd->flags & (1 << 6);
1478
1479 /* Lookup command */
1480 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) {
1481 if (vhcr->op == cmd_info[i].opcode) {
1482 cmd = &cmd_info[i];
1483 break;
1484 }
1485 }
1486 if (!cmd) {
1487 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n",
1488 vhcr->op, slave);
1489 vhcr_cmd->status = CMD_STAT_BAD_PARAM;
1490 goto out_status;
1491 }
1492
1493 /* Read inbox */
1494 if (cmd->has_inbox) {
1495 vhcr->in_param &= INBOX_MASK;
1496 inbox = mlx4_alloc_cmd_mailbox(dev);
1497 if (IS_ERR(inbox)) {
1498 vhcr_cmd->status = CMD_STAT_BAD_SIZE;
1499 inbox = NULL;
1500 goto out_status;
1501 }
1502
1503 if (mlx4_ACCESS_MEM(dev, inbox->dma, slave,
1504 vhcr->in_param,
1505 MLX4_MAILBOX_SIZE, 1)) {
1506 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n",
1507 __func__, cmd->opcode);
1508 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR;
1509 goto out_status;
1510 }
1511 }
1512
1513 /* Apply permission and bound checks if applicable */
1514 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) {
1515 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n",
1516 vhcr->op, slave, vhcr->in_modifier);
1517 vhcr_cmd->status = CMD_STAT_BAD_OP;
1518 goto out_status;
1519 }
1520
1521 /* Allocate outbox */
1522 if (cmd->has_outbox) {
1523 outbox = mlx4_alloc_cmd_mailbox(dev);
1524 if (IS_ERR(outbox)) {
1525 vhcr_cmd->status = CMD_STAT_BAD_SIZE;
1526 outbox = NULL;
1527 goto out_status;
1528 }
1529 }
1530
1531 /* Execute the command! */
1532 if (cmd->wrapper) {
1533 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox,
1534 cmd);
1535 if (cmd->out_is_imm)
1536 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param);
1537 } else {
1538 in_param = cmd->has_inbox ? (u64) inbox->dma :
1539 vhcr->in_param;
1540 out_param = cmd->has_outbox ? (u64) outbox->dma :
1541 vhcr->out_param;
1542 err = __mlx4_cmd(dev, in_param, &out_param,
1543 cmd->out_is_imm, vhcr->in_modifier,
1544 vhcr->op_modifier, vhcr->op,
1545 MLX4_CMD_TIME_CLASS_A,
1546 MLX4_CMD_NATIVE);
1547
1548 if (cmd->out_is_imm) {
1549 vhcr->out_param = out_param;
1550 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param);
1551 }
1552 }
1553
1554 if (err) {
1555 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n",
1556 vhcr->op, slave, vhcr->errno, err);
1557 vhcr_cmd->status = mlx4_errno_to_status(err);
1558 goto out_status;
1559 }
1560
1561
1562 /* Write outbox if command completed successfully */
1563 if (cmd->has_outbox && !vhcr_cmd->status) {
1564 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave,
1565 vhcr->out_param,
1566 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED);
1567 if (ret) {
1568 /* If we failed to write back the outbox after the
1569 *command was successfully executed, we must fail this
1570 * slave, as it is now in undefined state */
1571 mlx4_err(dev, "%s:Failed writing outbox\n", __func__);
1572 goto out;
1573 }
1574 }
1575
1576 out_status:
1577 /* DMA back vhcr result */
1578 if (!in_vhcr) {
1579 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave,
1580 priv->mfunc.master.slave_state[slave].vhcr_dma,
1581 ALIGN(sizeof(struct mlx4_vhcr),
1582 MLX4_ACCESS_MEM_ALIGN),
1583 MLX4_CMD_WRAPPED);
1584 if (ret)
1585 mlx4_err(dev, "%s:Failed writing vhcr result\n",
1586 __func__);
1587 else if (vhcr->e_bit &&
1588 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe))
1589 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n",
1590 slave);
1591 }
1592
1593 out:
1594 kfree(vhcr);
1595 mlx4_free_cmd_mailbox(dev, inbox);
1596 mlx4_free_cmd_mailbox(dev, outbox);
1597 return ret;
1598 }
1599
1600 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
1601 int slave, int port)
1602 {
1603 struct mlx4_vport_oper_state *vp_oper;
1604 struct mlx4_vport_state *vp_admin;
1605 struct mlx4_vf_immed_vlan_work *work;
1606 struct mlx4_dev *dev = &(priv->dev);
1607 int err;
1608 int admin_vlan_ix = NO_INDX;
1609
1610 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
1611 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
1612
1613 if (vp_oper->state.default_vlan == vp_admin->default_vlan &&
1614 vp_oper->state.default_qos == vp_admin->default_qos &&
1615 vp_oper->state.link_state == vp_admin->link_state)
1616 return 0;
1617
1618 if (!(priv->mfunc.master.slave_state[slave].active &&
1619 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) {
1620 /* even if the UPDATE_QP command isn't supported, we still want
1621 * to set this VF link according to the admin directive
1622 */
1623 vp_oper->state.link_state = vp_admin->link_state;
1624 return -1;
1625 }
1626
1627 mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n",
1628 slave, port);
1629 mlx4_dbg(dev, "vlan %d QoS %d link down %d\n",
1630 vp_admin->default_vlan, vp_admin->default_qos,
1631 vp_admin->link_state);
1632
1633 work = kzalloc(sizeof(*work), GFP_KERNEL);
1634 if (!work)
1635 return -ENOMEM;
1636
1637 if (vp_oper->state.default_vlan != vp_admin->default_vlan) {
1638 if (MLX4_VGT != vp_admin->default_vlan) {
1639 err = __mlx4_register_vlan(&priv->dev, port,
1640 vp_admin->default_vlan,
1641 &admin_vlan_ix);
1642 if (err) {
1643 kfree(work);
1644 mlx4_warn(&priv->dev,
1645 "No vlan resources slave %d, port %d\n",
1646 slave, port);
1647 return err;
1648 }
1649 } else {
1650 admin_vlan_ix = NO_INDX;
1651 }
1652 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN;
1653 mlx4_dbg(&priv->dev,
1654 "alloc vlan %d idx %d slave %d port %d\n",
1655 (int)(vp_admin->default_vlan),
1656 admin_vlan_ix, slave, port);
1657 }
1658
1659 /* save original vlan ix and vlan id */
1660 work->orig_vlan_id = vp_oper->state.default_vlan;
1661 work->orig_vlan_ix = vp_oper->vlan_idx;
1662
1663 /* handle new qos */
1664 if (vp_oper->state.default_qos != vp_admin->default_qos)
1665 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS;
1666
1667 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN)
1668 vp_oper->vlan_idx = admin_vlan_ix;
1669
1670 vp_oper->state.default_vlan = vp_admin->default_vlan;
1671 vp_oper->state.default_qos = vp_admin->default_qos;
1672 vp_oper->state.link_state = vp_admin->link_state;
1673
1674 if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE)
1675 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE;
1676
1677 /* iterate over QPs owned by this slave, using UPDATE_QP */
1678 work->port = port;
1679 work->slave = slave;
1680 work->qos = vp_oper->state.default_qos;
1681 work->vlan_id = vp_oper->state.default_vlan;
1682 work->vlan_ix = vp_oper->vlan_idx;
1683 work->priv = priv;
1684 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler);
1685 queue_work(priv->mfunc.master.comm_wq, &work->work);
1686
1687 return 0;
1688 }
1689
1690
1691 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave)
1692 {
1693 int port, err;
1694 struct mlx4_vport_state *vp_admin;
1695 struct mlx4_vport_oper_state *vp_oper;
1696 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
1697 &priv->dev, slave);
1698 int min_port = find_first_bit(actv_ports.ports,
1699 priv->dev.caps.num_ports) + 1;
1700 int max_port = min_port - 1 +
1701 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
1702
1703 for (port = min_port; port <= max_port; port++) {
1704 if (!test_bit(port - 1, actv_ports.ports))
1705 continue;
1706 priv->mfunc.master.vf_oper[slave].smi_enabled[port] =
1707 priv->mfunc.master.vf_admin[slave].enable_smi[port];
1708 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
1709 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
1710 vp_oper->state = *vp_admin;
1711 if (MLX4_VGT != vp_admin->default_vlan) {
1712 err = __mlx4_register_vlan(&priv->dev, port,
1713 vp_admin->default_vlan, &(vp_oper->vlan_idx));
1714 if (err) {
1715 vp_oper->vlan_idx = NO_INDX;
1716 mlx4_warn(&priv->dev,
1717 "No vlan resources slave %d, port %d\n",
1718 slave, port);
1719 return err;
1720 }
1721 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n",
1722 (int)(vp_oper->state.default_vlan),
1723 vp_oper->vlan_idx, slave, port);
1724 }
1725 if (vp_admin->spoofchk) {
1726 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev,
1727 port,
1728 vp_admin->mac);
1729 if (0 > vp_oper->mac_idx) {
1730 err = vp_oper->mac_idx;
1731 vp_oper->mac_idx = NO_INDX;
1732 mlx4_warn(&priv->dev,
1733 "No mac resources slave %d, port %d\n",
1734 slave, port);
1735 return err;
1736 }
1737 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n",
1738 vp_oper->state.mac, vp_oper->mac_idx, slave, port);
1739 }
1740 }
1741 return 0;
1742 }
1743
1744 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave)
1745 {
1746 int port;
1747 struct mlx4_vport_oper_state *vp_oper;
1748 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
1749 &priv->dev, slave);
1750 int min_port = find_first_bit(actv_ports.ports,
1751 priv->dev.caps.num_ports) + 1;
1752 int max_port = min_port - 1 +
1753 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
1754
1755
1756 for (port = min_port; port <= max_port; port++) {
1757 if (!test_bit(port - 1, actv_ports.ports))
1758 continue;
1759 priv->mfunc.master.vf_oper[slave].smi_enabled[port] =
1760 MLX4_VF_SMI_DISABLED;
1761 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
1762 if (NO_INDX != vp_oper->vlan_idx) {
1763 __mlx4_unregister_vlan(&priv->dev,
1764 port, vp_oper->state.default_vlan);
1765 vp_oper->vlan_idx = NO_INDX;
1766 }
1767 if (NO_INDX != vp_oper->mac_idx) {
1768 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac);
1769 vp_oper->mac_idx = NO_INDX;
1770 }
1771 }
1772 return;
1773 }
1774
1775 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
1776 u16 param, u8 toggle)
1777 {
1778 struct mlx4_priv *priv = mlx4_priv(dev);
1779 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
1780 u32 reply;
1781 u8 is_going_down = 0;
1782 int i;
1783 unsigned long flags;
1784
1785 slave_state[slave].comm_toggle ^= 1;
1786 reply = (u32) slave_state[slave].comm_toggle << 31;
1787 if (toggle != slave_state[slave].comm_toggle) {
1788 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n",
1789 toggle, slave);
1790 goto reset_slave;
1791 }
1792 if (cmd == MLX4_COMM_CMD_RESET) {
1793 mlx4_warn(dev, "Received reset from slave:%d\n", slave);
1794 slave_state[slave].active = false;
1795 slave_state[slave].old_vlan_api = false;
1796 mlx4_master_deactivate_admin_state(priv, slave);
1797 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) {
1798 slave_state[slave].event_eq[i].eqn = -1;
1799 slave_state[slave].event_eq[i].token = 0;
1800 }
1801 /*check if we are in the middle of FLR process,
1802 if so return "retry" status to the slave*/
1803 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd)
1804 goto inform_slave_state;
1805
1806 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave);
1807
1808 /* write the version in the event field */
1809 reply |= mlx4_comm_get_version();
1810
1811 goto reset_slave;
1812 }
1813 /*command from slave in the middle of FLR*/
1814 if (cmd != MLX4_COMM_CMD_RESET &&
1815 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) {
1816 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n",
1817 slave, cmd);
1818 return;
1819 }
1820
1821 switch (cmd) {
1822 case MLX4_COMM_CMD_VHCR0:
1823 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET)
1824 goto reset_slave;
1825 slave_state[slave].vhcr_dma = ((u64) param) << 48;
1826 priv->mfunc.master.slave_state[slave].cookie = 0;
1827 mutex_init(&priv->mfunc.master.gen_eqe_mutex[slave]);
1828 break;
1829 case MLX4_COMM_CMD_VHCR1:
1830 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0)
1831 goto reset_slave;
1832 slave_state[slave].vhcr_dma |= ((u64) param) << 32;
1833 break;
1834 case MLX4_COMM_CMD_VHCR2:
1835 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1)
1836 goto reset_slave;
1837 slave_state[slave].vhcr_dma |= ((u64) param) << 16;
1838 break;
1839 case MLX4_COMM_CMD_VHCR_EN:
1840 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2)
1841 goto reset_slave;
1842 slave_state[slave].vhcr_dma |= param;
1843 if (mlx4_master_activate_admin_state(priv, slave))
1844 goto reset_slave;
1845 slave_state[slave].active = true;
1846 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave);
1847 break;
1848 case MLX4_COMM_CMD_VHCR_POST:
1849 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) &&
1850 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST))
1851 goto reset_slave;
1852
1853 mutex_lock(&priv->cmd.slave_cmd_mutex);
1854 if (mlx4_master_process_vhcr(dev, slave, NULL)) {
1855 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n",
1856 slave);
1857 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1858 goto reset_slave;
1859 }
1860 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1861 break;
1862 default:
1863 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave);
1864 goto reset_slave;
1865 }
1866 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags);
1867 if (!slave_state[slave].is_slave_going_down)
1868 slave_state[slave].last_cmd = cmd;
1869 else
1870 is_going_down = 1;
1871 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
1872 if (is_going_down) {
1873 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n",
1874 cmd, slave);
1875 return;
1876 }
1877 __raw_writel((__force u32) cpu_to_be32(reply),
1878 &priv->mfunc.comm[slave].slave_read);
1879 mmiowb();
1880
1881 return;
1882
1883 reset_slave:
1884 /* cleanup any slave resources */
1885 mlx4_delete_all_resources_for_slave(dev, slave);
1886 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags);
1887 if (!slave_state[slave].is_slave_going_down)
1888 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET;
1889 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
1890 /*with slave in the middle of flr, no need to clean resources again.*/
1891 inform_slave_state:
1892 memset(&slave_state[slave].event_eq, 0,
1893 sizeof(struct mlx4_slave_event_eq_info));
1894 __raw_writel((__force u32) cpu_to_be32(reply),
1895 &priv->mfunc.comm[slave].slave_read);
1896 wmb();
1897 }
1898
1899 /* master command processing */
1900 void mlx4_master_comm_channel(struct work_struct *work)
1901 {
1902 struct mlx4_mfunc_master_ctx *master =
1903 container_of(work,
1904 struct mlx4_mfunc_master_ctx,
1905 comm_work);
1906 struct mlx4_mfunc *mfunc =
1907 container_of(master, struct mlx4_mfunc, master);
1908 struct mlx4_priv *priv =
1909 container_of(mfunc, struct mlx4_priv, mfunc);
1910 struct mlx4_dev *dev = &priv->dev;
1911 __be32 *bit_vec;
1912 u32 comm_cmd;
1913 u32 vec;
1914 int i, j, slave;
1915 int toggle;
1916 int served = 0;
1917 int reported = 0;
1918 u32 slt;
1919
1920 bit_vec = master->comm_arm_bit_vector;
1921 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) {
1922 vec = be32_to_cpu(bit_vec[i]);
1923 for (j = 0; j < 32; j++) {
1924 if (!(vec & (1 << j)))
1925 continue;
1926 ++reported;
1927 slave = (i * 32) + j;
1928 comm_cmd = swab32(readl(
1929 &mfunc->comm[slave].slave_write));
1930 slt = swab32(readl(&mfunc->comm[slave].slave_read))
1931 >> 31;
1932 toggle = comm_cmd >> 31;
1933 if (toggle != slt) {
1934 if (master->slave_state[slave].comm_toggle
1935 != slt) {
1936 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n",
1937 slave, slt,
1938 master->slave_state[slave].comm_toggle);
1939 master->slave_state[slave].comm_toggle =
1940 slt;
1941 }
1942 mlx4_master_do_cmd(dev, slave,
1943 comm_cmd >> 16 & 0xff,
1944 comm_cmd & 0xffff, toggle);
1945 ++served;
1946 }
1947 }
1948 }
1949
1950 if (reported && reported != served)
1951 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n",
1952 reported, served);
1953
1954 if (mlx4_ARM_COMM_CHANNEL(dev))
1955 mlx4_warn(dev, "Failed to arm comm channel events\n");
1956 }
1957
1958 static int sync_toggles(struct mlx4_dev *dev)
1959 {
1960 struct mlx4_priv *priv = mlx4_priv(dev);
1961 int wr_toggle;
1962 int rd_toggle;
1963 unsigned long end;
1964
1965 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write)) >> 31;
1966 end = jiffies + msecs_to_jiffies(5000);
1967
1968 while (time_before(jiffies, end)) {
1969 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read)) >> 31;
1970 if (rd_toggle == wr_toggle) {
1971 priv->cmd.comm_toggle = rd_toggle;
1972 return 0;
1973 }
1974
1975 cond_resched();
1976 }
1977
1978 /*
1979 * we could reach here if for example the previous VM using this
1980 * function misbehaved and left the channel with unsynced state. We
1981 * should fix this here and give this VM a chance to use a properly
1982 * synced channel
1983 */
1984 mlx4_warn(dev, "recovering from previously mis-behaved VM\n");
1985 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read);
1986 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write);
1987 priv->cmd.comm_toggle = 0;
1988
1989 return 0;
1990 }
1991
1992 int mlx4_multi_func_init(struct mlx4_dev *dev)
1993 {
1994 struct mlx4_priv *priv = mlx4_priv(dev);
1995 struct mlx4_slave_state *s_state;
1996 int i, j, err, port;
1997
1998 if (mlx4_is_master(dev))
1999 priv->mfunc.comm =
2000 ioremap(pci_resource_start(dev->pdev, priv->fw.comm_bar) +
2001 priv->fw.comm_base, MLX4_COMM_PAGESIZE);
2002 else
2003 priv->mfunc.comm =
2004 ioremap(pci_resource_start(dev->pdev, 2) +
2005 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE);
2006 if (!priv->mfunc.comm) {
2007 mlx4_err(dev, "Couldn't map communication vector\n");
2008 goto err_vhcr;
2009 }
2010
2011 if (mlx4_is_master(dev)) {
2012 priv->mfunc.master.slave_state =
2013 kzalloc(dev->num_slaves *
2014 sizeof(struct mlx4_slave_state), GFP_KERNEL);
2015 if (!priv->mfunc.master.slave_state)
2016 goto err_comm;
2017
2018 priv->mfunc.master.vf_admin =
2019 kzalloc(dev->num_slaves *
2020 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL);
2021 if (!priv->mfunc.master.vf_admin)
2022 goto err_comm_admin;
2023
2024 priv->mfunc.master.vf_oper =
2025 kzalloc(dev->num_slaves *
2026 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL);
2027 if (!priv->mfunc.master.vf_oper)
2028 goto err_comm_oper;
2029
2030 for (i = 0; i < dev->num_slaves; ++i) {
2031 s_state = &priv->mfunc.master.slave_state[i];
2032 s_state->last_cmd = MLX4_COMM_CMD_RESET;
2033 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j)
2034 s_state->event_eq[j].eqn = -1;
2035 __raw_writel((__force u32) 0,
2036 &priv->mfunc.comm[i].slave_write);
2037 __raw_writel((__force u32) 0,
2038 &priv->mfunc.comm[i].slave_read);
2039 mmiowb();
2040 for (port = 1; port <= MLX4_MAX_PORTS; port++) {
2041 s_state->vlan_filter[port] =
2042 kzalloc(sizeof(struct mlx4_vlan_fltr),
2043 GFP_KERNEL);
2044 if (!s_state->vlan_filter[port]) {
2045 if (--port)
2046 kfree(s_state->vlan_filter[port]);
2047 goto err_slaves;
2048 }
2049 INIT_LIST_HEAD(&s_state->mcast_filters[port]);
2050 priv->mfunc.master.vf_admin[i].vport[port].default_vlan = MLX4_VGT;
2051 priv->mfunc.master.vf_oper[i].vport[port].state.default_vlan = MLX4_VGT;
2052 priv->mfunc.master.vf_oper[i].vport[port].vlan_idx = NO_INDX;
2053 priv->mfunc.master.vf_oper[i].vport[port].mac_idx = NO_INDX;
2054 }
2055 spin_lock_init(&s_state->lock);
2056 }
2057
2058 memset(&priv->mfunc.master.cmd_eqe, 0, dev->caps.eqe_size);
2059 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD;
2060 INIT_WORK(&priv->mfunc.master.comm_work,
2061 mlx4_master_comm_channel);
2062 INIT_WORK(&priv->mfunc.master.slave_event_work,
2063 mlx4_gen_slave_eqe);
2064 INIT_WORK(&priv->mfunc.master.slave_flr_event_work,
2065 mlx4_master_handle_slave_flr);
2066 spin_lock_init(&priv->mfunc.master.slave_state_lock);
2067 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock);
2068 priv->mfunc.master.comm_wq =
2069 create_singlethread_workqueue("mlx4_comm");
2070 if (!priv->mfunc.master.comm_wq)
2071 goto err_slaves;
2072
2073 if (mlx4_init_resource_tracker(dev))
2074 goto err_thread;
2075
2076 err = mlx4_ARM_COMM_CHANNEL(dev);
2077 if (err) {
2078 mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
2079 err);
2080 goto err_resource;
2081 }
2082
2083 } else {
2084 err = sync_toggles(dev);
2085 if (err) {
2086 mlx4_err(dev, "Couldn't sync toggles\n");
2087 goto err_comm;
2088 }
2089 }
2090 return 0;
2091
2092 err_resource:
2093 mlx4_free_resource_tracker(dev, RES_TR_FREE_ALL);
2094 err_thread:
2095 flush_workqueue(priv->mfunc.master.comm_wq);
2096 destroy_workqueue(priv->mfunc.master.comm_wq);
2097 err_slaves:
2098 while (--i) {
2099 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2100 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2101 }
2102 kfree(priv->mfunc.master.vf_oper);
2103 err_comm_oper:
2104 kfree(priv->mfunc.master.vf_admin);
2105 err_comm_admin:
2106 kfree(priv->mfunc.master.slave_state);
2107 err_comm:
2108 iounmap(priv->mfunc.comm);
2109 err_vhcr:
2110 dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
2111 priv->mfunc.vhcr,
2112 priv->mfunc.vhcr_dma);
2113 priv->mfunc.vhcr = NULL;
2114 return -ENOMEM;
2115 }
2116
2117 int mlx4_cmd_init(struct mlx4_dev *dev)
2118 {
2119 struct mlx4_priv *priv = mlx4_priv(dev);
2120
2121 mutex_init(&priv->cmd.hcr_mutex);
2122 mutex_init(&priv->cmd.slave_cmd_mutex);
2123 sema_init(&priv->cmd.poll_sem, 1);
2124 priv->cmd.use_events = 0;
2125 priv->cmd.toggle = 1;
2126
2127 priv->cmd.hcr = NULL;
2128 priv->mfunc.vhcr = NULL;
2129
2130 if (!mlx4_is_slave(dev)) {
2131 priv->cmd.hcr = ioremap(pci_resource_start(dev->pdev, 0) +
2132 MLX4_HCR_BASE, MLX4_HCR_SIZE);
2133 if (!priv->cmd.hcr) {
2134 mlx4_err(dev, "Couldn't map command register\n");
2135 return -ENOMEM;
2136 }
2137 }
2138
2139 if (mlx4_is_mfunc(dev)) {
2140 priv->mfunc.vhcr = dma_alloc_coherent(&(dev->pdev->dev), PAGE_SIZE,
2141 &priv->mfunc.vhcr_dma,
2142 GFP_KERNEL);
2143 if (!priv->mfunc.vhcr)
2144 goto err_hcr;
2145 }
2146
2147 priv->cmd.pool = pci_pool_create("mlx4_cmd", dev->pdev,
2148 MLX4_MAILBOX_SIZE,
2149 MLX4_MAILBOX_SIZE, 0);
2150 if (!priv->cmd.pool)
2151 goto err_vhcr;
2152
2153 return 0;
2154
2155 err_vhcr:
2156 if (mlx4_is_mfunc(dev))
2157 dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
2158 priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
2159 priv->mfunc.vhcr = NULL;
2160
2161 err_hcr:
2162 if (!mlx4_is_slave(dev))
2163 iounmap(priv->cmd.hcr);
2164 return -ENOMEM;
2165 }
2166
2167 void mlx4_multi_func_cleanup(struct mlx4_dev *dev)
2168 {
2169 struct mlx4_priv *priv = mlx4_priv(dev);
2170 int i, port;
2171
2172 if (mlx4_is_master(dev)) {
2173 flush_workqueue(priv->mfunc.master.comm_wq);
2174 destroy_workqueue(priv->mfunc.master.comm_wq);
2175 for (i = 0; i < dev->num_slaves; i++) {
2176 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2177 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2178 }
2179 kfree(priv->mfunc.master.slave_state);
2180 kfree(priv->mfunc.master.vf_admin);
2181 kfree(priv->mfunc.master.vf_oper);
2182 }
2183
2184 iounmap(priv->mfunc.comm);
2185 }
2186
2187 void mlx4_cmd_cleanup(struct mlx4_dev *dev)
2188 {
2189 struct mlx4_priv *priv = mlx4_priv(dev);
2190
2191 pci_pool_destroy(priv->cmd.pool);
2192
2193 if (!mlx4_is_slave(dev))
2194 iounmap(priv->cmd.hcr);
2195 if (mlx4_is_mfunc(dev))
2196 dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
2197 priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
2198 priv->mfunc.vhcr = NULL;
2199 }
2200
2201 /*
2202 * Switch to using events to issue FW commands (can only be called
2203 * after event queue for command events has been initialized).
2204 */
2205 int mlx4_cmd_use_events(struct mlx4_dev *dev)
2206 {
2207 struct mlx4_priv *priv = mlx4_priv(dev);
2208 int i;
2209 int err = 0;
2210
2211 priv->cmd.context = kmalloc(priv->cmd.max_cmds *
2212 sizeof (struct mlx4_cmd_context),
2213 GFP_KERNEL);
2214 if (!priv->cmd.context)
2215 return -ENOMEM;
2216
2217 for (i = 0; i < priv->cmd.max_cmds; ++i) {
2218 priv->cmd.context[i].token = i;
2219 priv->cmd.context[i].next = i + 1;
2220 }
2221
2222 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
2223 priv->cmd.free_head = 0;
2224
2225 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
2226 spin_lock_init(&priv->cmd.context_lock);
2227
2228 for (priv->cmd.token_mask = 1;
2229 priv->cmd.token_mask < priv->cmd.max_cmds;
2230 priv->cmd.token_mask <<= 1)
2231 ; /* nothing */
2232 --priv->cmd.token_mask;
2233
2234 down(&priv->cmd.poll_sem);
2235 priv->cmd.use_events = 1;
2236
2237 return err;
2238 }
2239
2240 /*
2241 * Switch back to polling (used when shutting down the device)
2242 */
2243 void mlx4_cmd_use_polling(struct mlx4_dev *dev)
2244 {
2245 struct mlx4_priv *priv = mlx4_priv(dev);
2246 int i;
2247
2248 priv->cmd.use_events = 0;
2249
2250 for (i = 0; i < priv->cmd.max_cmds; ++i)
2251 down(&priv->cmd.event_sem);
2252
2253 kfree(priv->cmd.context);
2254
2255 up(&priv->cmd.poll_sem);
2256 }
2257
2258 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
2259 {
2260 struct mlx4_cmd_mailbox *mailbox;
2261
2262 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
2263 if (!mailbox)
2264 return ERR_PTR(-ENOMEM);
2265
2266 mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
2267 &mailbox->dma);
2268 if (!mailbox->buf) {
2269 kfree(mailbox);
2270 return ERR_PTR(-ENOMEM);
2271 }
2272
2273 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
2274
2275 return mailbox;
2276 }
2277 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
2278
2279 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev,
2280 struct mlx4_cmd_mailbox *mailbox)
2281 {
2282 if (!mailbox)
2283 return;
2284
2285 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
2286 kfree(mailbox);
2287 }
2288 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
2289
2290 u32 mlx4_comm_get_version(void)
2291 {
2292 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER;
2293 }
2294
2295 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf)
2296 {
2297 if ((vf < 0) || (vf >= dev->num_vfs)) {
2298 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n", vf, dev->num_vfs);
2299 return -EINVAL;
2300 }
2301
2302 return vf+1;
2303 }
2304
2305 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave)
2306 {
2307 if (slave < 1 || slave > dev->num_vfs) {
2308 mlx4_err(dev,
2309 "Bad slave number:%d (number of activated slaves: %lu)\n",
2310 slave, dev->num_slaves);
2311 return -EINVAL;
2312 }
2313 return slave - 1;
2314 }
2315
2316 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave)
2317 {
2318 struct mlx4_active_ports actv_ports;
2319 int vf;
2320
2321 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS);
2322
2323 if (slave == 0) {
2324 bitmap_fill(actv_ports.ports, dev->caps.num_ports);
2325 return actv_ports;
2326 }
2327
2328 vf = mlx4_get_vf_indx(dev, slave);
2329 if (vf < 0)
2330 return actv_ports;
2331
2332 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1,
2333 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports,
2334 dev->caps.num_ports));
2335
2336 return actv_ports;
2337 }
2338 EXPORT_SYMBOL_GPL(mlx4_get_active_ports);
2339
2340 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port)
2341 {
2342 unsigned n;
2343 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2344 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2345
2346 if (port <= 0 || port > m)
2347 return -EINVAL;
2348
2349 n = find_first_bit(actv_ports.ports, dev->caps.num_ports);
2350 if (port <= n)
2351 port = n + 1;
2352
2353 return port;
2354 }
2355 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port);
2356
2357 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port)
2358 {
2359 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2360 if (test_bit(port - 1, actv_ports.ports))
2361 return port -
2362 find_first_bit(actv_ports.ports, dev->caps.num_ports);
2363
2364 return -1;
2365 }
2366 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port);
2367
2368 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev,
2369 int port)
2370 {
2371 unsigned i;
2372 struct mlx4_slaves_pport slaves_pport;
2373
2374 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2375
2376 if (port <= 0 || port > dev->caps.num_ports)
2377 return slaves_pport;
2378
2379 for (i = 0; i < dev->num_vfs + 1; i++) {
2380 struct mlx4_active_ports actv_ports =
2381 mlx4_get_active_ports(dev, i);
2382 if (test_bit(port - 1, actv_ports.ports))
2383 set_bit(i, slaves_pport.slaves);
2384 }
2385
2386 return slaves_pport;
2387 }
2388 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport);
2389
2390 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv(
2391 struct mlx4_dev *dev,
2392 const struct mlx4_active_ports *crit_ports)
2393 {
2394 unsigned i;
2395 struct mlx4_slaves_pport slaves_pport;
2396
2397 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2398
2399 for (i = 0; i < dev->num_vfs + 1; i++) {
2400 struct mlx4_active_ports actv_ports =
2401 mlx4_get_active_ports(dev, i);
2402 if (bitmap_equal(crit_ports->ports, actv_ports.ports,
2403 dev->caps.num_ports))
2404 set_bit(i, slaves_pport.slaves);
2405 }
2406
2407 return slaves_pport;
2408 }
2409 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv);
2410
2411 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port)
2412 {
2413 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2414 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports)
2415 + 1;
2416 int max_port = min_port +
2417 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2418
2419 if (port < min_port)
2420 port = min_port;
2421 else if (port >= max_port)
2422 port = max_port - 1;
2423
2424 return port;
2425 }
2426
2427 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)
2428 {
2429 struct mlx4_priv *priv = mlx4_priv(dev);
2430 struct mlx4_vport_state *s_info;
2431 int slave;
2432
2433 if (!mlx4_is_master(dev))
2434 return -EPROTONOSUPPORT;
2435
2436 slave = mlx4_get_slave_indx(dev, vf);
2437 if (slave < 0)
2438 return -EINVAL;
2439
2440 port = mlx4_slaves_closest_port(dev, slave, port);
2441 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2442 s_info->mac = mac;
2443 mlx4_info(dev, "default mac on vf %d port %d to %llX will take afect only after vf restart\n",
2444 vf, port, s_info->mac);
2445 return 0;
2446 }
2447 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
2448
2449
2450 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
2451 {
2452 struct mlx4_priv *priv = mlx4_priv(dev);
2453 struct mlx4_vport_state *vf_admin;
2454 int slave;
2455
2456 if ((!mlx4_is_master(dev)) ||
2457 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL))
2458 return -EPROTONOSUPPORT;
2459
2460 if ((vlan > 4095) || (qos > 7))
2461 return -EINVAL;
2462
2463 slave = mlx4_get_slave_indx(dev, vf);
2464 if (slave < 0)
2465 return -EINVAL;
2466
2467 port = mlx4_slaves_closest_port(dev, slave, port);
2468 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
2469
2470 if ((0 == vlan) && (0 == qos))
2471 vf_admin->default_vlan = MLX4_VGT;
2472 else
2473 vf_admin->default_vlan = vlan;
2474 vf_admin->default_qos = qos;
2475
2476 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
2477 mlx4_info(dev,
2478 "updating vf %d port %d config will take effect on next VF restart\n",
2479 vf, port);
2480 return 0;
2481 }
2482 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan);
2483
2484 /* mlx4_get_slave_default_vlan -
2485 * return true if VST ( default vlan)
2486 * if VST, will return vlan & qos (if not NULL)
2487 */
2488 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave,
2489 u16 *vlan, u8 *qos)
2490 {
2491 struct mlx4_vport_oper_state *vp_oper;
2492 struct mlx4_priv *priv;
2493
2494 priv = mlx4_priv(dev);
2495 port = mlx4_slaves_closest_port(dev, slave, port);
2496 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
2497
2498 if (MLX4_VGT != vp_oper->state.default_vlan) {
2499 if (vlan)
2500 *vlan = vp_oper->state.default_vlan;
2501 if (qos)
2502 *qos = vp_oper->state.default_qos;
2503 return true;
2504 }
2505 return false;
2506 }
2507 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan);
2508
2509 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting)
2510 {
2511 struct mlx4_priv *priv = mlx4_priv(dev);
2512 struct mlx4_vport_state *s_info;
2513 int slave;
2514
2515 if ((!mlx4_is_master(dev)) ||
2516 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM))
2517 return -EPROTONOSUPPORT;
2518
2519 slave = mlx4_get_slave_indx(dev, vf);
2520 if (slave < 0)
2521 return -EINVAL;
2522
2523 port = mlx4_slaves_closest_port(dev, slave, port);
2524 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2525 s_info->spoofchk = setting;
2526
2527 return 0;
2528 }
2529 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk);
2530
2531 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf)
2532 {
2533 struct mlx4_priv *priv = mlx4_priv(dev);
2534 struct mlx4_vport_state *s_info;
2535 int slave;
2536
2537 if (!mlx4_is_master(dev))
2538 return -EPROTONOSUPPORT;
2539
2540 slave = mlx4_get_slave_indx(dev, vf);
2541 if (slave < 0)
2542 return -EINVAL;
2543
2544 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2545 ivf->vf = vf;
2546
2547 /* need to convert it to a func */
2548 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff);
2549 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff);
2550 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff);
2551 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff);
2552 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff);
2553 ivf->mac[5] = ((s_info->mac) & 0xff);
2554
2555 ivf->vlan = s_info->default_vlan;
2556 ivf->qos = s_info->default_qos;
2557 ivf->max_tx_rate = s_info->tx_rate;
2558 ivf->min_tx_rate = 0;
2559 ivf->spoofchk = s_info->spoofchk;
2560 ivf->linkstate = s_info->link_state;
2561
2562 return 0;
2563 }
2564 EXPORT_SYMBOL_GPL(mlx4_get_vf_config);
2565
2566 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state)
2567 {
2568 struct mlx4_priv *priv = mlx4_priv(dev);
2569 struct mlx4_vport_state *s_info;
2570 int slave;
2571 u8 link_stat_event;
2572
2573 slave = mlx4_get_slave_indx(dev, vf);
2574 if (slave < 0)
2575 return -EINVAL;
2576
2577 port = mlx4_slaves_closest_port(dev, slave, port);
2578 switch (link_state) {
2579 case IFLA_VF_LINK_STATE_AUTO:
2580 /* get current link state */
2581 if (!priv->sense.do_sense_port[port])
2582 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
2583 else
2584 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
2585 break;
2586
2587 case IFLA_VF_LINK_STATE_ENABLE:
2588 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
2589 break;
2590
2591 case IFLA_VF_LINK_STATE_DISABLE:
2592 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
2593 break;
2594
2595 default:
2596 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n",
2597 link_state, slave, port);
2598 return -EINVAL;
2599 };
2600 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2601 s_info->link_state = link_state;
2602
2603 /* send event */
2604 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event);
2605
2606 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
2607 mlx4_dbg(dev,
2608 "updating vf %d port %d no link state HW enforcment\n",
2609 vf, port);
2610 return 0;
2611 }
2612 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state);
2613
2614 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port)
2615 {
2616 struct mlx4_priv *priv = mlx4_priv(dev);
2617
2618 if (slave < 1 || slave >= dev->num_slaves ||
2619 port < 1 || port > MLX4_MAX_PORTS)
2620 return 0;
2621
2622 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] ==
2623 MLX4_VF_SMI_ENABLED;
2624 }
2625 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled);
2626
2627 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port)
2628 {
2629 struct mlx4_priv *priv = mlx4_priv(dev);
2630
2631 if (slave == mlx4_master_func_num(dev))
2632 return 1;
2633
2634 if (slave < 1 || slave >= dev->num_slaves ||
2635 port < 1 || port > MLX4_MAX_PORTS)
2636 return 0;
2637
2638 return priv->mfunc.master.vf_admin[slave].enable_smi[port] ==
2639 MLX4_VF_SMI_ENABLED;
2640 }
2641 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin);
2642
2643 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
2644 int enabled)
2645 {
2646 struct mlx4_priv *priv = mlx4_priv(dev);
2647
2648 if (slave == mlx4_master_func_num(dev))
2649 return 0;
2650
2651 if (slave < 1 || slave >= dev->num_slaves ||
2652 port < 1 || port > MLX4_MAX_PORTS ||
2653 enabled < 0 || enabled > 1)
2654 return -EINVAL;
2655
2656 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled;
2657 return 0;
2658 }
2659 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin);
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