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.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
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>
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>
52 #include "mlx4_stats.h"
54 #define CMD_POLL_TOKEN 0xffff
55 #define INBOX_MASK 0xffffffffffffff00ULL
57 #define CMD_CHAN_VER 1
58 #define CMD_CHAN_IF_REV 1
61 /* command completed successfully: */
63 /* Internal error (such as a bus error) occurred while processing command: */
64 CMD_STAT_INTERNAL_ERR = 0x01,
65 /* Operation/command not supported or opcode modifier not supported: */
66 CMD_STAT_BAD_OP = 0x02,
67 /* Parameter not supported or parameter out of range: */
68 CMD_STAT_BAD_PARAM = 0x03,
69 /* System not enabled or bad system state: */
70 CMD_STAT_BAD_SYS_STATE = 0x04,
71 /* Attempt to access reserved or unallocaterd resource: */
72 CMD_STAT_BAD_RESOURCE = 0x05,
73 /* Requested resource is currently executing a command, or is otherwise busy: */
74 CMD_STAT_RESOURCE_BUSY = 0x06,
75 /* Required capability exceeds device limits: */
76 CMD_STAT_EXCEED_LIM = 0x08,
77 /* Resource is not in the appropriate state or ownership: */
78 CMD_STAT_BAD_RES_STATE = 0x09,
79 /* Index out of range: */
80 CMD_STAT_BAD_INDEX = 0x0a,
81 /* FW image corrupted: */
82 CMD_STAT_BAD_NVMEM = 0x0b,
83 /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */
84 CMD_STAT_ICM_ERROR = 0x0c,
85 /* Attempt to modify a QP/EE which is not in the presumed state: */
86 CMD_STAT_BAD_QP_STATE = 0x10,
87 /* Bad segment parameters (Address/Size): */
88 CMD_STAT_BAD_SEG_PARAM = 0x20,
89 /* Memory Region has Memory Windows bound to: */
90 CMD_STAT_REG_BOUND = 0x21,
91 /* HCA local attached memory not present: */
92 CMD_STAT_LAM_NOT_PRE = 0x22,
93 /* Bad management packet (silently discarded): */
94 CMD_STAT_BAD_PKT = 0x30,
95 /* More outstanding CQEs in CQ than new CQ size: */
96 CMD_STAT_BAD_SIZE = 0x40,
97 /* Multi Function device support required: */
98 CMD_STAT_MULTI_FUNC_REQ = 0x50,
102 HCR_IN_PARAM_OFFSET = 0x00,
103 HCR_IN_MODIFIER_OFFSET = 0x08,
104 HCR_OUT_PARAM_OFFSET = 0x0c,
105 HCR_TOKEN_OFFSET = 0x14,
106 HCR_STATUS_OFFSET = 0x18,
108 HCR_OPMOD_SHIFT = 12,
115 GO_BIT_TIMEOUT_MSECS = 10000
118 enum mlx4_vlan_transition {
119 MLX4_VLAN_TRANSITION_VST_VST = 0,
120 MLX4_VLAN_TRANSITION_VST_VGT = 1,
121 MLX4_VLAN_TRANSITION_VGT_VST = 2,
122 MLX4_VLAN_TRANSITION_VGT_VGT = 3,
126 struct mlx4_cmd_context {
127 struct completion done;
135 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave,
136 struct mlx4_vhcr_cmd *in_vhcr);
138 static int mlx4_status_to_errno(u8 status)
140 static const int trans_table[] = {
141 [CMD_STAT_INTERNAL_ERR] = -EIO,
142 [CMD_STAT_BAD_OP] = -EPERM,
143 [CMD_STAT_BAD_PARAM] = -EINVAL,
144 [CMD_STAT_BAD_SYS_STATE] = -ENXIO,
145 [CMD_STAT_BAD_RESOURCE] = -EBADF,
146 [CMD_STAT_RESOURCE_BUSY] = -EBUSY,
147 [CMD_STAT_EXCEED_LIM] = -ENOMEM,
148 [CMD_STAT_BAD_RES_STATE] = -EBADF,
149 [CMD_STAT_BAD_INDEX] = -EBADF,
150 [CMD_STAT_BAD_NVMEM] = -EFAULT,
151 [CMD_STAT_ICM_ERROR] = -ENFILE,
152 [CMD_STAT_BAD_QP_STATE] = -EINVAL,
153 [CMD_STAT_BAD_SEG_PARAM] = -EFAULT,
154 [CMD_STAT_REG_BOUND] = -EBUSY,
155 [CMD_STAT_LAM_NOT_PRE] = -EAGAIN,
156 [CMD_STAT_BAD_PKT] = -EINVAL,
157 [CMD_STAT_BAD_SIZE] = -ENOMEM,
158 [CMD_STAT_MULTI_FUNC_REQ] = -EACCES,
161 if (status >= ARRAY_SIZE(trans_table) ||
162 (status != CMD_STAT_OK && trans_table[status] == 0))
165 return trans_table[status];
168 static u8 mlx4_errno_to_status(int errno)
172 return CMD_STAT_BAD_OP;
174 return CMD_STAT_BAD_PARAM;
176 return CMD_STAT_BAD_SYS_STATE;
178 return CMD_STAT_RESOURCE_BUSY;
180 return CMD_STAT_EXCEED_LIM;
182 return CMD_STAT_ICM_ERROR;
184 return CMD_STAT_INTERNAL_ERR;
188 static int mlx4_internal_err_ret_value(struct mlx4_dev *dev, u16 op,
192 case MLX4_CMD_UNMAP_ICM:
193 case MLX4_CMD_UNMAP_ICM_AUX:
194 case MLX4_CMD_UNMAP_FA:
195 case MLX4_CMD_2RST_QP:
196 case MLX4_CMD_HW2SW_EQ:
197 case MLX4_CMD_HW2SW_CQ:
198 case MLX4_CMD_HW2SW_SRQ:
199 case MLX4_CMD_HW2SW_MPT:
200 case MLX4_CMD_CLOSE_HCA:
201 case MLX4_QP_FLOW_STEERING_DETACH:
202 case MLX4_CMD_FREE_RES:
203 case MLX4_CMD_CLOSE_PORT:
206 case MLX4_CMD_QP_ATTACH:
207 /* On Detach case return success */
208 if (op_modifier == 0)
210 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
213 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
217 static int mlx4_closing_cmd_fatal_error(u16 op, u8 fw_status)
219 /* Any error during the closing commands below is considered fatal */
220 if (op == MLX4_CMD_CLOSE_HCA ||
221 op == MLX4_CMD_HW2SW_EQ ||
222 op == MLX4_CMD_HW2SW_CQ ||
223 op == MLX4_CMD_2RST_QP ||
224 op == MLX4_CMD_HW2SW_SRQ ||
225 op == MLX4_CMD_SYNC_TPT ||
226 op == MLX4_CMD_UNMAP_ICM ||
227 op == MLX4_CMD_UNMAP_ICM_AUX ||
228 op == MLX4_CMD_UNMAP_FA)
230 /* Error on MLX4_CMD_HW2SW_MPT is fatal except when fw status equals
231 * CMD_STAT_REG_BOUND.
232 * This status indicates that memory region has memory windows bound to it
233 * which may result from invalid user space usage and is not fatal.
235 if (op == MLX4_CMD_HW2SW_MPT && fw_status != CMD_STAT_REG_BOUND)
240 static int mlx4_cmd_reset_flow(struct mlx4_dev *dev, u16 op, u8 op_modifier,
243 /* Only if reset flow is really active return code is based on
244 * command, otherwise current error code is returned.
246 if (mlx4_internal_err_reset) {
247 mlx4_enter_error_state(dev->persist);
248 err = mlx4_internal_err_ret_value(dev, op, op_modifier);
254 static int comm_pending(struct mlx4_dev *dev)
256 struct mlx4_priv *priv = mlx4_priv(dev);
257 u32 status = readl(&priv->mfunc.comm->slave_read);
259 return (swab32(status) >> 31) != priv->cmd.comm_toggle;
262 static int mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param)
264 struct mlx4_priv *priv = mlx4_priv(dev);
267 /* To avoid writing to unknown addresses after the device state was
268 * changed to internal error and the function was rest,
269 * check the INTERNAL_ERROR flag which is updated under
270 * device_state_mutex lock.
272 mutex_lock(&dev->persist->device_state_mutex);
274 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) {
275 mutex_unlock(&dev->persist->device_state_mutex);
279 priv->cmd.comm_toggle ^= 1;
280 val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31);
281 __raw_writel((__force u32) cpu_to_be32(val),
282 &priv->mfunc.comm->slave_write);
284 mutex_unlock(&dev->persist->device_state_mutex);
288 static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param,
289 unsigned long timeout)
291 struct mlx4_priv *priv = mlx4_priv(dev);
294 int ret_from_pending = 0;
296 /* First, verify that the master reports correct status */
297 if (comm_pending(dev)) {
298 mlx4_warn(dev, "Communication channel is not idle - my toggle is %d (cmd:0x%x)\n",
299 priv->cmd.comm_toggle, cmd);
304 down(&priv->cmd.poll_sem);
305 if (mlx4_comm_cmd_post(dev, cmd, param)) {
306 /* Only in case the device state is INTERNAL_ERROR,
307 * mlx4_comm_cmd_post returns with an error
309 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
313 end = msecs_to_jiffies(timeout) + jiffies;
314 while (comm_pending(dev) && time_before(jiffies, end))
316 ret_from_pending = comm_pending(dev);
317 if (ret_from_pending) {
318 /* check if the slave is trying to boot in the middle of
319 * FLR process. The only non-zero result in the RESET command
320 * is MLX4_DELAY_RESET_SLAVE*/
321 if ((MLX4_COMM_CMD_RESET == cmd)) {
322 err = MLX4_DELAY_RESET_SLAVE;
325 mlx4_warn(dev, "Communication channel command 0x%x timed out\n",
327 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
332 mlx4_enter_error_state(dev->persist);
334 up(&priv->cmd.poll_sem);
338 static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 vhcr_cmd,
339 u16 param, u16 op, unsigned long timeout)
341 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
342 struct mlx4_cmd_context *context;
346 down(&cmd->event_sem);
348 spin_lock(&cmd->context_lock);
349 BUG_ON(cmd->free_head < 0);
350 context = &cmd->context[cmd->free_head];
351 context->token += cmd->token_mask + 1;
352 cmd->free_head = context->next;
353 spin_unlock(&cmd->context_lock);
355 reinit_completion(&context->done);
357 if (mlx4_comm_cmd_post(dev, vhcr_cmd, param)) {
358 /* Only in case the device state is INTERNAL_ERROR,
359 * mlx4_comm_cmd_post returns with an error
361 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
365 if (!wait_for_completion_timeout(&context->done,
366 msecs_to_jiffies(timeout))) {
367 mlx4_warn(dev, "communication channel command 0x%x (op=0x%x) timed out\n",
372 err = context->result;
373 if (err && context->fw_status != CMD_STAT_MULTI_FUNC_REQ) {
374 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
375 vhcr_cmd, context->fw_status);
376 if (mlx4_closing_cmd_fatal_error(op, context->fw_status))
380 /* wait for comm channel ready
381 * this is necessary for prevention the race
382 * when switching between event to polling mode
383 * Skipping this section in case the device is in FATAL_ERROR state,
384 * In this state, no commands are sent via the comm channel until
385 * the device has returned from reset.
387 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) {
388 end = msecs_to_jiffies(timeout) + jiffies;
389 while (comm_pending(dev) && time_before(jiffies, end))
395 err = mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
396 mlx4_enter_error_state(dev->persist);
398 spin_lock(&cmd->context_lock);
399 context->next = cmd->free_head;
400 cmd->free_head = context - cmd->context;
401 spin_unlock(&cmd->context_lock);
407 int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param,
408 u16 op, unsigned long timeout)
410 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
411 return mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
413 if (mlx4_priv(dev)->cmd.use_events)
414 return mlx4_comm_cmd_wait(dev, cmd, param, op, timeout);
415 return mlx4_comm_cmd_poll(dev, cmd, param, timeout);
418 static int cmd_pending(struct mlx4_dev *dev)
422 if (pci_channel_offline(dev->persist->pdev))
425 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
427 return (status & swab32(1 << HCR_GO_BIT)) ||
428 (mlx4_priv(dev)->cmd.toggle ==
429 !!(status & swab32(1 << HCR_T_BIT)));
432 static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
433 u32 in_modifier, u8 op_modifier, u16 op, u16 token,
436 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
437 u32 __iomem *hcr = cmd->hcr;
441 mutex_lock(&dev->persist->device_state_mutex);
442 /* To avoid writing to unknown addresses after the device state was
443 * changed to internal error and the chip was reset,
444 * check the INTERNAL_ERROR flag which is updated under
445 * device_state_mutex lock.
447 if (pci_channel_offline(dev->persist->pdev) ||
448 (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)) {
450 * Device is going through error recovery
451 * and cannot accept commands.
458 end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
460 while (cmd_pending(dev)) {
461 if (pci_channel_offline(dev->persist->pdev)) {
463 * Device is going through error recovery
464 * and cannot accept commands.
469 if (time_after_eq(jiffies, end)) {
470 mlx4_err(dev, "%s:cmd_pending failed\n", __func__);
477 * We use writel (instead of something like memcpy_toio)
478 * because writes of less than 32 bits to the HCR don't work
479 * (and some architectures such as ia64 implement memcpy_toio
480 * in terms of writeb).
482 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), hcr + 0);
483 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), hcr + 1);
484 __raw_writel((__force u32) cpu_to_be32(in_modifier), hcr + 2);
485 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), hcr + 3);
486 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4);
487 __raw_writel((__force u32) cpu_to_be32(token << 16), hcr + 5);
489 /* __raw_writel may not order writes. */
492 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
493 (cmd->toggle << HCR_T_BIT) |
494 (event ? (1 << HCR_E_BIT) : 0) |
495 (op_modifier << HCR_OPMOD_SHIFT) |
499 * Make sure that our HCR writes don't get mixed in with
500 * writes from another CPU starting a FW command.
504 cmd->toggle = cmd->toggle ^ 1;
510 mlx4_warn(dev, "Could not post command 0x%x: ret=%d, in_param=0x%llx, in_mod=0x%x, op_mod=0x%x\n",
511 op, ret, in_param, in_modifier, op_modifier);
512 mutex_unlock(&dev->persist->device_state_mutex);
517 static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
518 int out_is_imm, u32 in_modifier, u8 op_modifier,
519 u16 op, unsigned long timeout)
521 struct mlx4_priv *priv = mlx4_priv(dev);
522 struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr;
525 mutex_lock(&priv->cmd.slave_cmd_mutex);
527 vhcr->in_param = cpu_to_be64(in_param);
528 vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0;
529 vhcr->in_modifier = cpu_to_be32(in_modifier);
530 vhcr->opcode = cpu_to_be16((((u16) op_modifier) << 12) | (op & 0xfff));
531 vhcr->token = cpu_to_be16(CMD_POLL_TOKEN);
533 vhcr->flags = !!(priv->cmd.use_events) << 6;
535 if (mlx4_is_master(dev)) {
536 ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr);
541 be64_to_cpu(vhcr->out_param);
543 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
545 vhcr->status = CMD_STAT_BAD_PARAM;
548 ret = mlx4_status_to_errno(vhcr->status);
551 dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
552 ret = mlx4_internal_err_ret_value(dev, op, op_modifier);
554 ret = mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_POST, 0, op,
555 MLX4_COMM_TIME + timeout);
560 be64_to_cpu(vhcr->out_param);
562 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
564 vhcr->status = CMD_STAT_BAD_PARAM;
567 ret = mlx4_status_to_errno(vhcr->status);
569 if (dev->persist->state &
570 MLX4_DEVICE_STATE_INTERNAL_ERROR)
571 ret = mlx4_internal_err_ret_value(dev, op,
574 mlx4_err(dev, "failed execution of VHCR_POST command opcode 0x%x\n", op);
578 mutex_unlock(&priv->cmd.slave_cmd_mutex);
582 static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
583 int out_is_imm, u32 in_modifier, u8 op_modifier,
584 u16 op, unsigned long timeout)
586 struct mlx4_priv *priv = mlx4_priv(dev);
587 void __iomem *hcr = priv->cmd.hcr;
592 down(&priv->cmd.poll_sem);
594 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) {
596 * Device is going through error recovery
597 * and cannot accept commands.
599 err = mlx4_internal_err_ret_value(dev, op, op_modifier);
603 if (out_is_imm && !out_param) {
604 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
610 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
611 in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
615 end = msecs_to_jiffies(timeout) + jiffies;
616 while (cmd_pending(dev) && time_before(jiffies, end)) {
617 if (pci_channel_offline(dev->persist->pdev)) {
619 * Device is going through error recovery
620 * and cannot accept commands.
626 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) {
627 err = mlx4_internal_err_ret_value(dev, op, op_modifier);
634 if (cmd_pending(dev)) {
635 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
643 (u64) be32_to_cpu((__force __be32)
644 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
645 (u64) be32_to_cpu((__force __be32)
646 __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4));
647 stat = be32_to_cpu((__force __be32)
648 __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24;
649 err = mlx4_status_to_errno(stat);
651 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
653 if (mlx4_closing_cmd_fatal_error(op, stat))
660 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err);
662 up(&priv->cmd.poll_sem);
666 void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param)
668 struct mlx4_priv *priv = mlx4_priv(dev);
669 struct mlx4_cmd_context *context =
670 &priv->cmd.context[token & priv->cmd.token_mask];
672 /* previously timed out command completing at long last */
673 if (token != context->token)
676 context->fw_status = status;
677 context->result = mlx4_status_to_errno(status);
678 context->out_param = out_param;
680 complete(&context->done);
683 static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
684 int out_is_imm, u32 in_modifier, u8 op_modifier,
685 u16 op, unsigned long timeout)
687 struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
688 struct mlx4_cmd_context *context;
691 down(&cmd->event_sem);
693 spin_lock(&cmd->context_lock);
694 BUG_ON(cmd->free_head < 0);
695 context = &cmd->context[cmd->free_head];
696 context->token += cmd->token_mask + 1;
697 cmd->free_head = context->next;
698 spin_unlock(&cmd->context_lock);
700 if (out_is_imm && !out_param) {
701 mlx4_err(dev, "response expected while output mailbox is NULL for command 0x%x\n",
707 reinit_completion(&context->done);
709 err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
710 in_modifier, op_modifier, op, context->token, 1);
714 if (!wait_for_completion_timeout(&context->done,
715 msecs_to_jiffies(timeout))) {
716 mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
718 if (op == MLX4_CMD_NOP) {
727 err = context->result;
729 /* Since we do not want to have this error message always
730 * displayed at driver start when there are ConnectX2 HCAs
731 * on the host, we deprecate the error message for this
732 * specific command/input_mod/opcode_mod/fw-status to be debug.
734 if (op == MLX4_CMD_SET_PORT &&
735 (in_modifier == 1 || in_modifier == 2) &&
736 op_modifier == MLX4_SET_PORT_IB_OPCODE &&
737 context->fw_status == CMD_STAT_BAD_SIZE)
738 mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n",
739 op, context->fw_status);
741 mlx4_err(dev, "command 0x%x failed: fw status = 0x%x\n",
742 op, context->fw_status);
743 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
744 err = mlx4_internal_err_ret_value(dev, op, op_modifier);
745 else if (mlx4_closing_cmd_fatal_error(op, context->fw_status))
752 *out_param = context->out_param;
756 err = mlx4_cmd_reset_flow(dev, op, op_modifier, err);
758 spin_lock(&cmd->context_lock);
759 context->next = cmd->free_head;
760 cmd->free_head = context - cmd->context;
761 spin_unlock(&cmd->context_lock);
767 int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
768 int out_is_imm, u32 in_modifier, u8 op_modifier,
769 u16 op, unsigned long timeout, int native)
771 if (pci_channel_offline(dev->persist->pdev))
772 return mlx4_cmd_reset_flow(dev, op, op_modifier, -EIO);
774 if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) {
775 if (dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
776 return mlx4_internal_err_ret_value(dev, op,
778 if (mlx4_priv(dev)->cmd.use_events)
779 return mlx4_cmd_wait(dev, in_param, out_param,
780 out_is_imm, in_modifier,
781 op_modifier, op, timeout);
783 return mlx4_cmd_poll(dev, in_param, out_param,
784 out_is_imm, in_modifier,
785 op_modifier, op, timeout);
787 return mlx4_slave_cmd(dev, in_param, out_param, out_is_imm,
788 in_modifier, op_modifier, op, timeout);
790 EXPORT_SYMBOL_GPL(__mlx4_cmd);
793 int mlx4_ARM_COMM_CHANNEL(struct mlx4_dev *dev)
795 return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_ARM_COMM_CHANNEL,
796 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
799 static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr,
800 int slave, u64 slave_addr,
801 int size, int is_read)
806 if ((slave_addr & 0xfff) | (master_addr & 0xfff) |
807 (slave & ~0x7f) | (size & 0xff)) {
808 mlx4_err(dev, "Bad access mem params - slave_addr:0x%llx master_addr:0x%llx slave_id:%d size:%d\n",
809 slave_addr, master_addr, slave, size);
814 in_param = (u64) slave | slave_addr;
815 out_param = (u64) dev->caps.function | master_addr;
817 in_param = (u64) dev->caps.function | master_addr;
818 out_param = (u64) slave | slave_addr;
821 return mlx4_cmd_imm(dev, in_param, &out_param, size, 0,
823 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
826 static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey,
827 struct mlx4_cmd_mailbox *inbox,
828 struct mlx4_cmd_mailbox *outbox)
830 struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf);
831 struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf);
838 in_mad->attr_mod = cpu_to_be32(index / 32);
840 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3,
841 MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
846 for (i = 0; i < 32; ++i)
847 pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]);
852 static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table,
853 struct mlx4_cmd_mailbox *inbox,
854 struct mlx4_cmd_mailbox *outbox)
859 for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) {
860 err = query_pkey_block(dev, port, i, table + i, inbox, outbox);
867 #define PORT_CAPABILITY_LOCATION_IN_SMP 20
868 #define PORT_STATE_OFFSET 32
870 static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf)
872 if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP)
873 return IB_PORT_ACTIVE;
878 static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
879 struct mlx4_vhcr *vhcr,
880 struct mlx4_cmd_mailbox *inbox,
881 struct mlx4_cmd_mailbox *outbox,
882 struct mlx4_cmd_info *cmd)
884 struct ib_smp *smp = inbox->buf;
892 struct mlx4_priv *priv = mlx4_priv(dev);
893 struct ib_smp *outsmp = outbox->buf;
894 __be16 *outtab = (__be16 *)(outsmp->data);
895 __be32 slave_cap_mask;
896 __be64 slave_node_guid;
898 slave_port = vhcr->in_modifier;
899 port = mlx4_slave_convert_port(dev, slave, slave_port);
901 /* network-view bit is for driver use only, and should not be passed to FW */
902 opcode_modifier = vhcr->op_modifier & ~0x8; /* clear netw view bit */
903 network_view = !!(vhcr->op_modifier & 0x8);
905 if (smp->base_version == 1 &&
906 smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
907 smp->class_version == 1) {
908 /* host view is paravirtualized */
909 if (!network_view && smp->method == IB_MGMT_METHOD_GET) {
910 if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) {
911 index = be32_to_cpu(smp->attr_mod);
912 if (port < 1 || port > dev->caps.num_ports)
914 table = kcalloc((dev->caps.pkey_table_len[port] / 32) + 1,
915 sizeof(*table) * 32, GFP_KERNEL);
919 /* need to get the full pkey table because the paravirtualized
920 * pkeys may be scattered among several pkey blocks.
922 err = get_full_pkey_table(dev, port, table, inbox, outbox);
924 for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) {
925 pidx = priv->virt2phys_pkey[slave][port - 1][vidx];
926 outtab[vidx % 32] = cpu_to_be16(table[pidx]);
932 if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) {
933 /*get the slave specific caps:*/
935 smp->attr_mod = cpu_to_be32(port);
936 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
937 port, opcode_modifier,
938 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
939 /* modify the response for slaves */
940 if (!err && slave != mlx4_master_func_num(dev)) {
941 u8 *state = outsmp->data + PORT_STATE_OFFSET;
943 *state = (*state & 0xf0) | vf_port_state(dev, port, slave);
944 slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
945 memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4);
949 if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) {
950 __be64 guid = mlx4_get_admin_guid(dev, slave,
953 /* set the PF admin guid to the FW/HW burned
954 * GUID, if it wasn't yet set
956 if (slave == 0 && guid == 0) {
958 err = mlx4_cmd_box(dev,
964 MLX4_CMD_TIME_CLASS_C,
968 mlx4_set_admin_guid(dev,
972 memcpy(outsmp->data, &guid, 8);
975 /* clean all other gids */
976 memset(outsmp->data + 8, 0, 56);
979 if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) {
980 err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
981 port, opcode_modifier,
982 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
984 slave_node_guid = mlx4_get_slave_node_guid(dev, slave);
985 memcpy(outsmp->data + 12, &slave_node_guid, 8);
992 /* Non-privileged VFs are only allowed "host" view LID-routed 'Get' MADs.
993 * These are the MADs used by ib verbs (such as ib_query_gids).
995 if (slave != mlx4_master_func_num(dev) &&
996 !mlx4_vf_smi_enabled(dev, slave, port)) {
997 if (!(smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
998 smp->method == IB_MGMT_METHOD_GET) || network_view) {
999 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",
1000 slave, smp->method, smp->mgmt_class,
1001 network_view ? "Network" : "Host",
1002 be16_to_cpu(smp->attr_id));
1007 return mlx4_cmd_box(dev, inbox->dma, outbox->dma,
1008 vhcr->in_modifier, opcode_modifier,
1009 vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
1012 static int mlx4_CMD_EPERM_wrapper(struct mlx4_dev *dev, int slave,
1013 struct mlx4_vhcr *vhcr,
1014 struct mlx4_cmd_mailbox *inbox,
1015 struct mlx4_cmd_mailbox *outbox,
1016 struct mlx4_cmd_info *cmd)
1021 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave,
1022 struct mlx4_vhcr *vhcr,
1023 struct mlx4_cmd_mailbox *inbox,
1024 struct mlx4_cmd_mailbox *outbox,
1025 struct mlx4_cmd_info *cmd)
1031 in_param = cmd->has_inbox ? (u64) inbox->dma : vhcr->in_param;
1032 out_param = cmd->has_outbox ? (u64) outbox->dma : vhcr->out_param;
1033 if (cmd->encode_slave_id) {
1034 in_param &= 0xffffffffffffff00ll;
1038 err = __mlx4_cmd(dev, in_param, &out_param, cmd->out_is_imm,
1039 vhcr->in_modifier, vhcr->op_modifier, vhcr->op,
1040 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1042 if (cmd->out_is_imm)
1043 vhcr->out_param = out_param;
1048 static struct mlx4_cmd_info cmd_info[] = {
1050 .opcode = MLX4_CMD_QUERY_FW,
1053 .out_is_imm = false,
1054 .encode_slave_id = false,
1056 .wrapper = mlx4_QUERY_FW_wrapper
1059 .opcode = MLX4_CMD_QUERY_HCA,
1062 .out_is_imm = false,
1063 .encode_slave_id = false,
1068 .opcode = MLX4_CMD_QUERY_DEV_CAP,
1071 .out_is_imm = false,
1072 .encode_slave_id = false,
1074 .wrapper = mlx4_QUERY_DEV_CAP_wrapper
1077 .opcode = MLX4_CMD_QUERY_FUNC_CAP,
1080 .out_is_imm = false,
1081 .encode_slave_id = false,
1083 .wrapper = mlx4_QUERY_FUNC_CAP_wrapper
1086 .opcode = MLX4_CMD_QUERY_ADAPTER,
1089 .out_is_imm = false,
1090 .encode_slave_id = false,
1095 .opcode = MLX4_CMD_INIT_PORT,
1097 .has_outbox = false,
1098 .out_is_imm = false,
1099 .encode_slave_id = false,
1101 .wrapper = mlx4_INIT_PORT_wrapper
1104 .opcode = MLX4_CMD_CLOSE_PORT,
1106 .has_outbox = false,
1107 .out_is_imm = false,
1108 .encode_slave_id = false,
1110 .wrapper = mlx4_CLOSE_PORT_wrapper
1113 .opcode = MLX4_CMD_QUERY_PORT,
1116 .out_is_imm = false,
1117 .encode_slave_id = false,
1119 .wrapper = mlx4_QUERY_PORT_wrapper
1122 .opcode = MLX4_CMD_SET_PORT,
1124 .has_outbox = false,
1125 .out_is_imm = false,
1126 .encode_slave_id = false,
1128 .wrapper = mlx4_SET_PORT_wrapper
1131 .opcode = MLX4_CMD_MAP_EQ,
1133 .has_outbox = false,
1134 .out_is_imm = false,
1135 .encode_slave_id = false,
1137 .wrapper = mlx4_MAP_EQ_wrapper
1140 .opcode = MLX4_CMD_SW2HW_EQ,
1142 .has_outbox = false,
1143 .out_is_imm = false,
1144 .encode_slave_id = true,
1146 .wrapper = mlx4_SW2HW_EQ_wrapper
1149 .opcode = MLX4_CMD_HW_HEALTH_CHECK,
1151 .has_outbox = false,
1152 .out_is_imm = false,
1153 .encode_slave_id = false,
1158 .opcode = MLX4_CMD_NOP,
1160 .has_outbox = false,
1161 .out_is_imm = false,
1162 .encode_slave_id = false,
1167 .opcode = MLX4_CMD_CONFIG_DEV,
1170 .out_is_imm = false,
1171 .encode_slave_id = false,
1173 .wrapper = mlx4_CONFIG_DEV_wrapper
1176 .opcode = MLX4_CMD_ALLOC_RES,
1178 .has_outbox = false,
1180 .encode_slave_id = false,
1182 .wrapper = mlx4_ALLOC_RES_wrapper
1185 .opcode = MLX4_CMD_FREE_RES,
1187 .has_outbox = false,
1188 .out_is_imm = false,
1189 .encode_slave_id = false,
1191 .wrapper = mlx4_FREE_RES_wrapper
1194 .opcode = MLX4_CMD_SW2HW_MPT,
1196 .has_outbox = false,
1197 .out_is_imm = false,
1198 .encode_slave_id = true,
1200 .wrapper = mlx4_SW2HW_MPT_wrapper
1203 .opcode = MLX4_CMD_QUERY_MPT,
1206 .out_is_imm = false,
1207 .encode_slave_id = false,
1209 .wrapper = mlx4_QUERY_MPT_wrapper
1212 .opcode = MLX4_CMD_HW2SW_MPT,
1214 .has_outbox = false,
1215 .out_is_imm = false,
1216 .encode_slave_id = false,
1218 .wrapper = mlx4_HW2SW_MPT_wrapper
1221 .opcode = MLX4_CMD_READ_MTT,
1224 .out_is_imm = false,
1225 .encode_slave_id = false,
1230 .opcode = MLX4_CMD_WRITE_MTT,
1232 .has_outbox = false,
1233 .out_is_imm = false,
1234 .encode_slave_id = false,
1236 .wrapper = mlx4_WRITE_MTT_wrapper
1239 .opcode = MLX4_CMD_SYNC_TPT,
1241 .has_outbox = false,
1242 .out_is_imm = false,
1243 .encode_slave_id = false,
1248 .opcode = MLX4_CMD_HW2SW_EQ,
1250 .has_outbox = false,
1251 .out_is_imm = false,
1252 .encode_slave_id = true,
1254 .wrapper = mlx4_HW2SW_EQ_wrapper
1257 .opcode = MLX4_CMD_QUERY_EQ,
1260 .out_is_imm = false,
1261 .encode_slave_id = true,
1263 .wrapper = mlx4_QUERY_EQ_wrapper
1266 .opcode = MLX4_CMD_SW2HW_CQ,
1268 .has_outbox = false,
1269 .out_is_imm = false,
1270 .encode_slave_id = true,
1272 .wrapper = mlx4_SW2HW_CQ_wrapper
1275 .opcode = MLX4_CMD_HW2SW_CQ,
1277 .has_outbox = false,
1278 .out_is_imm = false,
1279 .encode_slave_id = false,
1281 .wrapper = mlx4_HW2SW_CQ_wrapper
1284 .opcode = MLX4_CMD_QUERY_CQ,
1287 .out_is_imm = false,
1288 .encode_slave_id = false,
1290 .wrapper = mlx4_QUERY_CQ_wrapper
1293 .opcode = MLX4_CMD_MODIFY_CQ,
1295 .has_outbox = false,
1297 .encode_slave_id = false,
1299 .wrapper = mlx4_MODIFY_CQ_wrapper
1302 .opcode = MLX4_CMD_SW2HW_SRQ,
1304 .has_outbox = false,
1305 .out_is_imm = false,
1306 .encode_slave_id = true,
1308 .wrapper = mlx4_SW2HW_SRQ_wrapper
1311 .opcode = MLX4_CMD_HW2SW_SRQ,
1313 .has_outbox = false,
1314 .out_is_imm = false,
1315 .encode_slave_id = false,
1317 .wrapper = mlx4_HW2SW_SRQ_wrapper
1320 .opcode = MLX4_CMD_QUERY_SRQ,
1323 .out_is_imm = false,
1324 .encode_slave_id = false,
1326 .wrapper = mlx4_QUERY_SRQ_wrapper
1329 .opcode = MLX4_CMD_ARM_SRQ,
1331 .has_outbox = false,
1332 .out_is_imm = false,
1333 .encode_slave_id = false,
1335 .wrapper = mlx4_ARM_SRQ_wrapper
1338 .opcode = MLX4_CMD_RST2INIT_QP,
1340 .has_outbox = false,
1341 .out_is_imm = false,
1342 .encode_slave_id = true,
1344 .wrapper = mlx4_RST2INIT_QP_wrapper
1347 .opcode = MLX4_CMD_INIT2INIT_QP,
1349 .has_outbox = false,
1350 .out_is_imm = false,
1351 .encode_slave_id = false,
1353 .wrapper = mlx4_INIT2INIT_QP_wrapper
1356 .opcode = MLX4_CMD_INIT2RTR_QP,
1358 .has_outbox = false,
1359 .out_is_imm = false,
1360 .encode_slave_id = false,
1362 .wrapper = mlx4_INIT2RTR_QP_wrapper
1365 .opcode = MLX4_CMD_RTR2RTS_QP,
1367 .has_outbox = false,
1368 .out_is_imm = false,
1369 .encode_slave_id = false,
1371 .wrapper = mlx4_RTR2RTS_QP_wrapper
1374 .opcode = MLX4_CMD_RTS2RTS_QP,
1376 .has_outbox = false,
1377 .out_is_imm = false,
1378 .encode_slave_id = false,
1380 .wrapper = mlx4_RTS2RTS_QP_wrapper
1383 .opcode = MLX4_CMD_SQERR2RTS_QP,
1385 .has_outbox = false,
1386 .out_is_imm = false,
1387 .encode_slave_id = false,
1389 .wrapper = mlx4_SQERR2RTS_QP_wrapper
1392 .opcode = MLX4_CMD_2ERR_QP,
1394 .has_outbox = false,
1395 .out_is_imm = false,
1396 .encode_slave_id = false,
1398 .wrapper = mlx4_GEN_QP_wrapper
1401 .opcode = MLX4_CMD_RTS2SQD_QP,
1403 .has_outbox = false,
1404 .out_is_imm = false,
1405 .encode_slave_id = false,
1407 .wrapper = mlx4_GEN_QP_wrapper
1410 .opcode = MLX4_CMD_SQD2SQD_QP,
1412 .has_outbox = false,
1413 .out_is_imm = false,
1414 .encode_slave_id = false,
1416 .wrapper = mlx4_SQD2SQD_QP_wrapper
1419 .opcode = MLX4_CMD_SQD2RTS_QP,
1421 .has_outbox = false,
1422 .out_is_imm = false,
1423 .encode_slave_id = false,
1425 .wrapper = mlx4_SQD2RTS_QP_wrapper
1428 .opcode = MLX4_CMD_2RST_QP,
1430 .has_outbox = false,
1431 .out_is_imm = false,
1432 .encode_slave_id = false,
1434 .wrapper = mlx4_2RST_QP_wrapper
1437 .opcode = MLX4_CMD_QUERY_QP,
1440 .out_is_imm = false,
1441 .encode_slave_id = false,
1443 .wrapper = mlx4_GEN_QP_wrapper
1446 .opcode = MLX4_CMD_SUSPEND_QP,
1448 .has_outbox = false,
1449 .out_is_imm = false,
1450 .encode_slave_id = false,
1452 .wrapper = mlx4_GEN_QP_wrapper
1455 .opcode = MLX4_CMD_UNSUSPEND_QP,
1457 .has_outbox = false,
1458 .out_is_imm = false,
1459 .encode_slave_id = false,
1461 .wrapper = mlx4_GEN_QP_wrapper
1464 .opcode = MLX4_CMD_UPDATE_QP,
1466 .has_outbox = false,
1467 .out_is_imm = false,
1468 .encode_slave_id = false,
1470 .wrapper = mlx4_UPDATE_QP_wrapper
1473 .opcode = MLX4_CMD_GET_OP_REQ,
1475 .has_outbox = false,
1476 .out_is_imm = false,
1477 .encode_slave_id = false,
1479 .wrapper = mlx4_CMD_EPERM_wrapper,
1482 .opcode = MLX4_CMD_ALLOCATE_VPP,
1485 .out_is_imm = false,
1486 .encode_slave_id = false,
1488 .wrapper = mlx4_CMD_EPERM_wrapper,
1491 .opcode = MLX4_CMD_SET_VPORT_QOS,
1494 .out_is_imm = false,
1495 .encode_slave_id = false,
1497 .wrapper = mlx4_CMD_EPERM_wrapper,
1500 .opcode = MLX4_CMD_CONF_SPECIAL_QP,
1502 .has_outbox = false,
1503 .out_is_imm = false,
1504 .encode_slave_id = false,
1505 .verify = NULL, /* XXX verify: only demux can do this */
1509 .opcode = MLX4_CMD_MAD_IFC,
1512 .out_is_imm = false,
1513 .encode_slave_id = false,
1515 .wrapper = mlx4_MAD_IFC_wrapper
1518 .opcode = MLX4_CMD_MAD_DEMUX,
1520 .has_outbox = false,
1521 .out_is_imm = false,
1522 .encode_slave_id = false,
1524 .wrapper = mlx4_CMD_EPERM_wrapper
1527 .opcode = MLX4_CMD_QUERY_IF_STAT,
1530 .out_is_imm = false,
1531 .encode_slave_id = false,
1533 .wrapper = mlx4_QUERY_IF_STAT_wrapper
1536 .opcode = MLX4_CMD_ACCESS_REG,
1539 .out_is_imm = false,
1540 .encode_slave_id = false,
1542 .wrapper = mlx4_ACCESS_REG_wrapper,
1545 .opcode = MLX4_CMD_CONGESTION_CTRL_OPCODE,
1547 .has_outbox = false,
1548 .out_is_imm = false,
1549 .encode_slave_id = false,
1551 .wrapper = mlx4_CMD_EPERM_wrapper,
1553 /* Native multicast commands are not available for guests */
1555 .opcode = MLX4_CMD_QP_ATTACH,
1557 .has_outbox = false,
1558 .out_is_imm = false,
1559 .encode_slave_id = false,
1561 .wrapper = mlx4_QP_ATTACH_wrapper
1564 .opcode = MLX4_CMD_PROMISC,
1566 .has_outbox = false,
1567 .out_is_imm = false,
1568 .encode_slave_id = false,
1570 .wrapper = mlx4_PROMISC_wrapper
1572 /* Ethernet specific commands */
1574 .opcode = MLX4_CMD_SET_VLAN_FLTR,
1576 .has_outbox = false,
1577 .out_is_imm = false,
1578 .encode_slave_id = false,
1580 .wrapper = mlx4_SET_VLAN_FLTR_wrapper
1583 .opcode = MLX4_CMD_SET_MCAST_FLTR,
1585 .has_outbox = false,
1586 .out_is_imm = false,
1587 .encode_slave_id = false,
1589 .wrapper = mlx4_SET_MCAST_FLTR_wrapper
1592 .opcode = MLX4_CMD_DUMP_ETH_STATS,
1595 .out_is_imm = false,
1596 .encode_slave_id = false,
1598 .wrapper = mlx4_DUMP_ETH_STATS_wrapper
1601 .opcode = MLX4_CMD_INFORM_FLR_DONE,
1603 .has_outbox = false,
1604 .out_is_imm = false,
1605 .encode_slave_id = false,
1609 /* flow steering commands */
1611 .opcode = MLX4_QP_FLOW_STEERING_ATTACH,
1613 .has_outbox = false,
1615 .encode_slave_id = false,
1617 .wrapper = mlx4_QP_FLOW_STEERING_ATTACH_wrapper
1620 .opcode = MLX4_QP_FLOW_STEERING_DETACH,
1622 .has_outbox = false,
1623 .out_is_imm = false,
1624 .encode_slave_id = false,
1626 .wrapper = mlx4_QP_FLOW_STEERING_DETACH_wrapper
1629 .opcode = MLX4_FLOW_STEERING_IB_UC_QP_RANGE,
1631 .has_outbox = false,
1632 .out_is_imm = false,
1633 .encode_slave_id = false,
1635 .wrapper = mlx4_CMD_EPERM_wrapper
1638 .opcode = MLX4_CMD_VIRT_PORT_MAP,
1640 .has_outbox = false,
1641 .out_is_imm = false,
1642 .encode_slave_id = false,
1644 .wrapper = mlx4_CMD_EPERM_wrapper
1648 static int mlx4_master_process_vhcr(struct mlx4_dev *dev, int slave,
1649 struct mlx4_vhcr_cmd *in_vhcr)
1651 struct mlx4_priv *priv = mlx4_priv(dev);
1652 struct mlx4_cmd_info *cmd = NULL;
1653 struct mlx4_vhcr_cmd *vhcr_cmd = in_vhcr ? in_vhcr : priv->mfunc.vhcr;
1654 struct mlx4_vhcr *vhcr;
1655 struct mlx4_cmd_mailbox *inbox = NULL;
1656 struct mlx4_cmd_mailbox *outbox = NULL;
1663 /* Create sw representation of Virtual HCR */
1664 vhcr = kzalloc(sizeof(struct mlx4_vhcr), GFP_KERNEL);
1668 /* DMA in the vHCR */
1670 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave,
1671 priv->mfunc.master.slave_state[slave].vhcr_dma,
1672 ALIGN(sizeof(struct mlx4_vhcr_cmd),
1673 MLX4_ACCESS_MEM_ALIGN), 1);
1675 if (!(dev->persist->state &
1676 MLX4_DEVICE_STATE_INTERNAL_ERROR))
1677 mlx4_err(dev, "%s: Failed reading vhcr ret: 0x%x\n",
1684 /* Fill SW VHCR fields */
1685 vhcr->in_param = be64_to_cpu(vhcr_cmd->in_param);
1686 vhcr->out_param = be64_to_cpu(vhcr_cmd->out_param);
1687 vhcr->in_modifier = be32_to_cpu(vhcr_cmd->in_modifier);
1688 vhcr->token = be16_to_cpu(vhcr_cmd->token);
1689 vhcr->op = be16_to_cpu(vhcr_cmd->opcode) & 0xfff;
1690 vhcr->op_modifier = (u8) (be16_to_cpu(vhcr_cmd->opcode) >> 12);
1691 vhcr->e_bit = vhcr_cmd->flags & (1 << 6);
1693 /* Lookup command */
1694 for (i = 0; i < ARRAY_SIZE(cmd_info); ++i) {
1695 if (vhcr->op == cmd_info[i].opcode) {
1701 mlx4_err(dev, "Unknown command:0x%x accepted from slave:%d\n",
1703 vhcr_cmd->status = CMD_STAT_BAD_PARAM;
1708 if (cmd->has_inbox) {
1709 vhcr->in_param &= INBOX_MASK;
1710 inbox = mlx4_alloc_cmd_mailbox(dev);
1711 if (IS_ERR(inbox)) {
1712 vhcr_cmd->status = CMD_STAT_BAD_SIZE;
1717 ret = mlx4_ACCESS_MEM(dev, inbox->dma, slave,
1719 MLX4_MAILBOX_SIZE, 1);
1721 if (!(dev->persist->state &
1722 MLX4_DEVICE_STATE_INTERNAL_ERROR))
1723 mlx4_err(dev, "%s: Failed reading inbox (cmd:0x%x)\n",
1724 __func__, cmd->opcode);
1725 vhcr_cmd->status = CMD_STAT_INTERNAL_ERR;
1730 /* Apply permission and bound checks if applicable */
1731 if (cmd->verify && cmd->verify(dev, slave, vhcr, inbox)) {
1732 mlx4_warn(dev, "Command:0x%x from slave: %d failed protection checks for resource_id:%d\n",
1733 vhcr->op, slave, vhcr->in_modifier);
1734 vhcr_cmd->status = CMD_STAT_BAD_OP;
1738 /* Allocate outbox */
1739 if (cmd->has_outbox) {
1740 outbox = mlx4_alloc_cmd_mailbox(dev);
1741 if (IS_ERR(outbox)) {
1742 vhcr_cmd->status = CMD_STAT_BAD_SIZE;
1748 /* Execute the command! */
1750 err = cmd->wrapper(dev, slave, vhcr, inbox, outbox,
1752 if (cmd->out_is_imm)
1753 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param);
1755 in_param = cmd->has_inbox ? (u64) inbox->dma :
1757 out_param = cmd->has_outbox ? (u64) outbox->dma :
1759 err = __mlx4_cmd(dev, in_param, &out_param,
1760 cmd->out_is_imm, vhcr->in_modifier,
1761 vhcr->op_modifier, vhcr->op,
1762 MLX4_CMD_TIME_CLASS_A,
1765 if (cmd->out_is_imm) {
1766 vhcr->out_param = out_param;
1767 vhcr_cmd->out_param = cpu_to_be64(vhcr->out_param);
1772 if (!(dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR))
1773 mlx4_warn(dev, "vhcr command:0x%x slave:%d failed with error:%d, status %d\n",
1774 vhcr->op, slave, vhcr->errno, err);
1775 vhcr_cmd->status = mlx4_errno_to_status(err);
1780 /* Write outbox if command completed successfully */
1781 if (cmd->has_outbox && !vhcr_cmd->status) {
1782 ret = mlx4_ACCESS_MEM(dev, outbox->dma, slave,
1784 MLX4_MAILBOX_SIZE, MLX4_CMD_WRAPPED);
1786 /* If we failed to write back the outbox after the
1787 *command was successfully executed, we must fail this
1788 * slave, as it is now in undefined state */
1789 if (!(dev->persist->state &
1790 MLX4_DEVICE_STATE_INTERNAL_ERROR))
1791 mlx4_err(dev, "%s:Failed writing outbox\n", __func__);
1797 /* DMA back vhcr result */
1799 ret = mlx4_ACCESS_MEM(dev, priv->mfunc.vhcr_dma, slave,
1800 priv->mfunc.master.slave_state[slave].vhcr_dma,
1801 ALIGN(sizeof(struct mlx4_vhcr),
1802 MLX4_ACCESS_MEM_ALIGN),
1805 mlx4_err(dev, "%s:Failed writing vhcr result\n",
1807 else if (vhcr->e_bit &&
1808 mlx4_GEN_EQE(dev, slave, &priv->mfunc.master.cmd_eqe))
1809 mlx4_warn(dev, "Failed to generate command completion eqe for slave %d\n",
1815 mlx4_free_cmd_mailbox(dev, inbox);
1816 mlx4_free_cmd_mailbox(dev, outbox);
1820 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
1821 int slave, int port)
1823 struct mlx4_vport_oper_state *vp_oper;
1824 struct mlx4_vport_state *vp_admin;
1825 struct mlx4_vf_immed_vlan_work *work;
1826 struct mlx4_dev *dev = &(priv->dev);
1828 int admin_vlan_ix = NO_INDX;
1830 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
1831 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
1833 if (vp_oper->state.default_vlan == vp_admin->default_vlan &&
1834 vp_oper->state.default_qos == vp_admin->default_qos &&
1835 vp_oper->state.link_state == vp_admin->link_state &&
1836 vp_oper->state.qos_vport == vp_admin->qos_vport)
1839 if (!(priv->mfunc.master.slave_state[slave].active &&
1840 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) {
1841 /* even if the UPDATE_QP command isn't supported, we still want
1842 * to set this VF link according to the admin directive
1844 vp_oper->state.link_state = vp_admin->link_state;
1848 mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n",
1850 mlx4_dbg(dev, "vlan %d QoS %d link down %d\n",
1851 vp_admin->default_vlan, vp_admin->default_qos,
1852 vp_admin->link_state);
1854 work = kzalloc(sizeof(*work), GFP_KERNEL);
1858 if (vp_oper->state.default_vlan != vp_admin->default_vlan) {
1859 if (MLX4_VGT != vp_admin->default_vlan) {
1860 err = __mlx4_register_vlan(&priv->dev, port,
1861 vp_admin->default_vlan,
1865 mlx4_warn(&priv->dev,
1866 "No vlan resources slave %d, port %d\n",
1871 admin_vlan_ix = NO_INDX;
1873 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN;
1874 mlx4_dbg(&priv->dev,
1875 "alloc vlan %d idx %d slave %d port %d\n",
1876 (int)(vp_admin->default_vlan),
1877 admin_vlan_ix, slave, port);
1880 /* save original vlan ix and vlan id */
1881 work->orig_vlan_id = vp_oper->state.default_vlan;
1882 work->orig_vlan_ix = vp_oper->vlan_idx;
1884 /* handle new qos */
1885 if (vp_oper->state.default_qos != vp_admin->default_qos)
1886 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS;
1888 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN)
1889 vp_oper->vlan_idx = admin_vlan_ix;
1891 vp_oper->state.default_vlan = vp_admin->default_vlan;
1892 vp_oper->state.default_qos = vp_admin->default_qos;
1893 vp_oper->state.link_state = vp_admin->link_state;
1894 vp_oper->state.qos_vport = vp_admin->qos_vport;
1896 if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE)
1897 work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE;
1899 /* iterate over QPs owned by this slave, using UPDATE_QP */
1901 work->slave = slave;
1902 work->qos = vp_oper->state.default_qos;
1903 work->qos_vport = vp_oper->state.qos_vport;
1904 work->vlan_id = vp_oper->state.default_vlan;
1905 work->vlan_ix = vp_oper->vlan_idx;
1907 INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler);
1908 queue_work(priv->mfunc.master.comm_wq, &work->work);
1913 static void mlx4_set_default_port_qos(struct mlx4_dev *dev, int port)
1915 struct mlx4_qos_manager *port_qos_ctl;
1916 struct mlx4_priv *priv = mlx4_priv(dev);
1918 port_qos_ctl = &priv->mfunc.master.qos_ctl[port];
1919 bitmap_zero(port_qos_ctl->priority_bm, MLX4_NUM_UP);
1921 /* Enable only default prio at PF init routine */
1922 set_bit(MLX4_DEFAULT_QOS_PRIO, port_qos_ctl->priority_bm);
1925 static void mlx4_allocate_port_vpps(struct mlx4_dev *dev, int port)
1931 u8 vpp_param[MLX4_NUM_UP];
1932 struct mlx4_qos_manager *port_qos;
1933 struct mlx4_priv *priv = mlx4_priv(dev);
1935 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param);
1937 mlx4_info(dev, "Failed query availible VPPs\n");
1941 port_qos = &priv->mfunc.master.qos_ctl[port];
1942 num_vfs = (availible_vpp /
1943 bitmap_weight(port_qos->priority_bm, MLX4_NUM_UP));
1945 for (i = 0; i < MLX4_NUM_UP; i++) {
1946 if (test_bit(i, port_qos->priority_bm))
1947 vpp_param[i] = num_vfs;
1950 err = mlx4_ALLOCATE_VPP_set(dev, port, vpp_param);
1952 mlx4_info(dev, "Failed allocating VPPs\n");
1956 /* Query actual allocated VPP, just to make sure */
1957 err = mlx4_ALLOCATE_VPP_get(dev, port, &availible_vpp, vpp_param);
1959 mlx4_info(dev, "Failed query availible VPPs\n");
1963 port_qos->num_of_qos_vfs = num_vfs;
1964 mlx4_dbg(dev, "Port %d Availible VPPs %d\n", port, availible_vpp);
1966 for (i = 0; i < MLX4_NUM_UP; i++)
1967 mlx4_dbg(dev, "Port %d UP %d Allocated %d VPPs\n", port, i,
1971 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave)
1974 struct mlx4_vport_state *vp_admin;
1975 struct mlx4_vport_oper_state *vp_oper;
1976 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
1978 int min_port = find_first_bit(actv_ports.ports,
1979 priv->dev.caps.num_ports) + 1;
1980 int max_port = min_port - 1 +
1981 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
1983 for (port = min_port; port <= max_port; port++) {
1984 if (!test_bit(port - 1, actv_ports.ports))
1986 priv->mfunc.master.vf_oper[slave].smi_enabled[port] =
1987 priv->mfunc.master.vf_admin[slave].enable_smi[port];
1988 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
1989 vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
1990 vp_oper->state = *vp_admin;
1991 if (MLX4_VGT != vp_admin->default_vlan) {
1992 err = __mlx4_register_vlan(&priv->dev, port,
1993 vp_admin->default_vlan, &(vp_oper->vlan_idx));
1995 vp_oper->vlan_idx = NO_INDX;
1996 mlx4_warn(&priv->dev,
1997 "No vlan resources slave %d, port %d\n",
2001 mlx4_dbg(&priv->dev, "alloc vlan %d idx %d slave %d port %d\n",
2002 (int)(vp_oper->state.default_vlan),
2003 vp_oper->vlan_idx, slave, port);
2005 if (vp_admin->spoofchk) {
2006 vp_oper->mac_idx = __mlx4_register_mac(&priv->dev,
2009 if (0 > vp_oper->mac_idx) {
2010 err = vp_oper->mac_idx;
2011 vp_oper->mac_idx = NO_INDX;
2012 mlx4_warn(&priv->dev,
2013 "No mac resources slave %d, port %d\n",
2017 mlx4_dbg(&priv->dev, "alloc mac %llx idx %d slave %d port %d\n",
2018 vp_oper->state.mac, vp_oper->mac_idx, slave, port);
2024 static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave)
2027 struct mlx4_vport_oper_state *vp_oper;
2028 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
2030 int min_port = find_first_bit(actv_ports.ports,
2031 priv->dev.caps.num_ports) + 1;
2032 int max_port = min_port - 1 +
2033 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
2036 for (port = min_port; port <= max_port; port++) {
2037 if (!test_bit(port - 1, actv_ports.ports))
2039 priv->mfunc.master.vf_oper[slave].smi_enabled[port] =
2040 MLX4_VF_SMI_DISABLED;
2041 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
2042 if (NO_INDX != vp_oper->vlan_idx) {
2043 __mlx4_unregister_vlan(&priv->dev,
2044 port, vp_oper->state.default_vlan);
2045 vp_oper->vlan_idx = NO_INDX;
2047 if (NO_INDX != vp_oper->mac_idx) {
2048 __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac);
2049 vp_oper->mac_idx = NO_INDX;
2055 static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
2056 u16 param, u8 toggle)
2058 struct mlx4_priv *priv = mlx4_priv(dev);
2059 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
2061 u8 is_going_down = 0;
2063 unsigned long flags;
2065 slave_state[slave].comm_toggle ^= 1;
2066 reply = (u32) slave_state[slave].comm_toggle << 31;
2067 if (toggle != slave_state[slave].comm_toggle) {
2068 mlx4_warn(dev, "Incorrect toggle %d from slave %d. *** MASTER STATE COMPROMISED ***\n",
2072 if (cmd == MLX4_COMM_CMD_RESET) {
2073 mlx4_warn(dev, "Received reset from slave:%d\n", slave);
2074 slave_state[slave].active = false;
2075 slave_state[slave].old_vlan_api = false;
2076 mlx4_master_deactivate_admin_state(priv, slave);
2077 for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) {
2078 slave_state[slave].event_eq[i].eqn = -1;
2079 slave_state[slave].event_eq[i].token = 0;
2081 /*check if we are in the middle of FLR process,
2082 if so return "retry" status to the slave*/
2083 if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd)
2084 goto inform_slave_state;
2086 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave);
2088 /* write the version in the event field */
2089 reply |= mlx4_comm_get_version();
2093 /*command from slave in the middle of FLR*/
2094 if (cmd != MLX4_COMM_CMD_RESET &&
2095 MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd) {
2096 mlx4_warn(dev, "slave:%d is Trying to run cmd(0x%x) in the middle of FLR\n",
2102 case MLX4_COMM_CMD_VHCR0:
2103 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_RESET)
2105 slave_state[slave].vhcr_dma = ((u64) param) << 48;
2106 priv->mfunc.master.slave_state[slave].cookie = 0;
2108 case MLX4_COMM_CMD_VHCR1:
2109 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0)
2111 slave_state[slave].vhcr_dma |= ((u64) param) << 32;
2113 case MLX4_COMM_CMD_VHCR2:
2114 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR1)
2116 slave_state[slave].vhcr_dma |= ((u64) param) << 16;
2118 case MLX4_COMM_CMD_VHCR_EN:
2119 if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR2)
2121 slave_state[slave].vhcr_dma |= param;
2122 if (mlx4_master_activate_admin_state(priv, slave))
2124 slave_state[slave].active = true;
2125 mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave);
2127 case MLX4_COMM_CMD_VHCR_POST:
2128 if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) &&
2129 (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST)) {
2130 mlx4_warn(dev, "slave:%d is out of sync, cmd=0x%x, last command=0x%x, reset is needed\n",
2131 slave, cmd, slave_state[slave].last_cmd);
2135 mutex_lock(&priv->cmd.slave_cmd_mutex);
2136 if (mlx4_master_process_vhcr(dev, slave, NULL)) {
2137 mlx4_err(dev, "Failed processing vhcr for slave:%d, resetting slave\n",
2139 mutex_unlock(&priv->cmd.slave_cmd_mutex);
2142 mutex_unlock(&priv->cmd.slave_cmd_mutex);
2145 mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave);
2148 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags);
2149 if (!slave_state[slave].is_slave_going_down)
2150 slave_state[slave].last_cmd = cmd;
2153 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
2154 if (is_going_down) {
2155 mlx4_warn(dev, "Slave is going down aborting command(%d) executing from slave:%d\n",
2159 __raw_writel((__force u32) cpu_to_be32(reply),
2160 &priv->mfunc.comm[slave].slave_read);
2166 /* cleanup any slave resources */
2167 if (dev->persist->interface_state & MLX4_INTERFACE_STATE_UP)
2168 mlx4_delete_all_resources_for_slave(dev, slave);
2170 if (cmd != MLX4_COMM_CMD_RESET) {
2171 mlx4_warn(dev, "Turn on internal error to force reset, slave=%d, cmd=0x%x\n",
2173 /* Turn on internal error letting slave reset itself immeditaly,
2174 * otherwise it might take till timeout on command is passed
2176 reply |= ((u32)COMM_CHAN_EVENT_INTERNAL_ERR);
2179 spin_lock_irqsave(&priv->mfunc.master.slave_state_lock, flags);
2180 if (!slave_state[slave].is_slave_going_down)
2181 slave_state[slave].last_cmd = MLX4_COMM_CMD_RESET;
2182 spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
2183 /*with slave in the middle of flr, no need to clean resources again.*/
2185 memset(&slave_state[slave].event_eq, 0,
2186 sizeof(struct mlx4_slave_event_eq_info));
2187 __raw_writel((__force u32) cpu_to_be32(reply),
2188 &priv->mfunc.comm[slave].slave_read);
2192 /* master command processing */
2193 void mlx4_master_comm_channel(struct work_struct *work)
2195 struct mlx4_mfunc_master_ctx *master =
2197 struct mlx4_mfunc_master_ctx,
2199 struct mlx4_mfunc *mfunc =
2200 container_of(master, struct mlx4_mfunc, master);
2201 struct mlx4_priv *priv =
2202 container_of(mfunc, struct mlx4_priv, mfunc);
2203 struct mlx4_dev *dev = &priv->dev;
2213 bit_vec = master->comm_arm_bit_vector;
2214 for (i = 0; i < COMM_CHANNEL_BIT_ARRAY_SIZE; i++) {
2215 vec = be32_to_cpu(bit_vec[i]);
2216 for (j = 0; j < 32; j++) {
2217 if (!(vec & (1 << j)))
2220 slave = (i * 32) + j;
2221 comm_cmd = swab32(readl(
2222 &mfunc->comm[slave].slave_write));
2223 slt = swab32(readl(&mfunc->comm[slave].slave_read))
2225 toggle = comm_cmd >> 31;
2226 if (toggle != slt) {
2227 if (master->slave_state[slave].comm_toggle
2229 pr_info("slave %d out of sync. read toggle %d, state toggle %d. Resynching.\n",
2231 master->slave_state[slave].comm_toggle);
2232 master->slave_state[slave].comm_toggle =
2235 mlx4_master_do_cmd(dev, slave,
2236 comm_cmd >> 16 & 0xff,
2237 comm_cmd & 0xffff, toggle);
2243 if (reported && reported != served)
2244 mlx4_warn(dev, "Got command event with bitmask from %d slaves but %d were served\n",
2247 if (mlx4_ARM_COMM_CHANNEL(dev))
2248 mlx4_warn(dev, "Failed to arm comm channel events\n");
2251 static int sync_toggles(struct mlx4_dev *dev)
2253 struct mlx4_priv *priv = mlx4_priv(dev);
2258 wr_toggle = swab32(readl(&priv->mfunc.comm->slave_write));
2259 if (wr_toggle == 0xffffffff)
2260 end = jiffies + msecs_to_jiffies(30000);
2262 end = jiffies + msecs_to_jiffies(5000);
2264 while (time_before(jiffies, end)) {
2265 rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read));
2266 if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) {
2267 /* PCI might be offline */
2269 wr_toggle = swab32(readl(&priv->mfunc.comm->
2274 if (rd_toggle >> 31 == wr_toggle >> 31) {
2275 priv->cmd.comm_toggle = rd_toggle >> 31;
2283 * we could reach here if for example the previous VM using this
2284 * function misbehaved and left the channel with unsynced state. We
2285 * should fix this here and give this VM a chance to use a properly
2288 mlx4_warn(dev, "recovering from previously mis-behaved VM\n");
2289 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_read);
2290 __raw_writel((__force u32) 0, &priv->mfunc.comm->slave_write);
2291 priv->cmd.comm_toggle = 0;
2296 int mlx4_multi_func_init(struct mlx4_dev *dev)
2298 struct mlx4_priv *priv = mlx4_priv(dev);
2299 struct mlx4_slave_state *s_state;
2300 int i, j, err, port;
2302 if (mlx4_is_master(dev))
2304 ioremap(pci_resource_start(dev->persist->pdev,
2305 priv->fw.comm_bar) +
2306 priv->fw.comm_base, MLX4_COMM_PAGESIZE);
2309 ioremap(pci_resource_start(dev->persist->pdev, 2) +
2310 MLX4_SLAVE_COMM_BASE, MLX4_COMM_PAGESIZE);
2311 if (!priv->mfunc.comm) {
2312 mlx4_err(dev, "Couldn't map communication vector\n");
2316 if (mlx4_is_master(dev)) {
2317 struct mlx4_vf_oper_state *vf_oper;
2318 struct mlx4_vf_admin_state *vf_admin;
2320 priv->mfunc.master.slave_state =
2321 kzalloc(dev->num_slaves *
2322 sizeof(struct mlx4_slave_state), GFP_KERNEL);
2323 if (!priv->mfunc.master.slave_state)
2326 priv->mfunc.master.vf_admin =
2327 kzalloc(dev->num_slaves *
2328 sizeof(struct mlx4_vf_admin_state), GFP_KERNEL);
2329 if (!priv->mfunc.master.vf_admin)
2330 goto err_comm_admin;
2332 priv->mfunc.master.vf_oper =
2333 kzalloc(dev->num_slaves *
2334 sizeof(struct mlx4_vf_oper_state), GFP_KERNEL);
2335 if (!priv->mfunc.master.vf_oper)
2338 for (i = 0; i < dev->num_slaves; ++i) {
2339 vf_admin = &priv->mfunc.master.vf_admin[i];
2340 vf_oper = &priv->mfunc.master.vf_oper[i];
2341 s_state = &priv->mfunc.master.slave_state[i];
2342 s_state->last_cmd = MLX4_COMM_CMD_RESET;
2343 mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]);
2344 for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j)
2345 s_state->event_eq[j].eqn = -1;
2346 __raw_writel((__force u32) 0,
2347 &priv->mfunc.comm[i].slave_write);
2348 __raw_writel((__force u32) 0,
2349 &priv->mfunc.comm[i].slave_read);
2351 for (port = 1; port <= MLX4_MAX_PORTS; port++) {
2352 struct mlx4_vport_state *admin_vport;
2353 struct mlx4_vport_state *oper_vport;
2355 s_state->vlan_filter[port] =
2356 kzalloc(sizeof(struct mlx4_vlan_fltr),
2358 if (!s_state->vlan_filter[port]) {
2360 kfree(s_state->vlan_filter[port]);
2364 admin_vport = &vf_admin->vport[port];
2365 oper_vport = &vf_oper->vport[port].state;
2366 INIT_LIST_HEAD(&s_state->mcast_filters[port]);
2367 admin_vport->default_vlan = MLX4_VGT;
2368 oper_vport->default_vlan = MLX4_VGT;
2369 admin_vport->qos_vport =
2370 MLX4_VPP_DEFAULT_VPORT;
2371 oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT;
2372 vf_oper->vport[port].vlan_idx = NO_INDX;
2373 vf_oper->vport[port].mac_idx = NO_INDX;
2374 mlx4_set_random_admin_guid(dev, i, port);
2376 spin_lock_init(&s_state->lock);
2379 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP) {
2380 for (port = 1; port <= dev->caps.num_ports; port++) {
2381 if (mlx4_is_eth(dev, port)) {
2382 mlx4_set_default_port_qos(dev, port);
2383 mlx4_allocate_port_vpps(dev, port);
2388 memset(&priv->mfunc.master.cmd_eqe, 0, dev->caps.eqe_size);
2389 priv->mfunc.master.cmd_eqe.type = MLX4_EVENT_TYPE_CMD;
2390 INIT_WORK(&priv->mfunc.master.comm_work,
2391 mlx4_master_comm_channel);
2392 INIT_WORK(&priv->mfunc.master.slave_event_work,
2393 mlx4_gen_slave_eqe);
2394 INIT_WORK(&priv->mfunc.master.slave_flr_event_work,
2395 mlx4_master_handle_slave_flr);
2396 spin_lock_init(&priv->mfunc.master.slave_state_lock);
2397 spin_lock_init(&priv->mfunc.master.slave_eq.event_lock);
2398 priv->mfunc.master.comm_wq =
2399 create_singlethread_workqueue("mlx4_comm");
2400 if (!priv->mfunc.master.comm_wq)
2403 if (mlx4_init_resource_tracker(dev))
2407 err = sync_toggles(dev);
2409 mlx4_err(dev, "Couldn't sync toggles\n");
2416 flush_workqueue(priv->mfunc.master.comm_wq);
2417 destroy_workqueue(priv->mfunc.master.comm_wq);
2420 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2421 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2423 kfree(priv->mfunc.master.vf_oper);
2425 kfree(priv->mfunc.master.vf_admin);
2427 kfree(priv->mfunc.master.slave_state);
2429 iounmap(priv->mfunc.comm);
2431 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE,
2433 priv->mfunc.vhcr_dma);
2434 priv->mfunc.vhcr = NULL;
2438 int mlx4_cmd_init(struct mlx4_dev *dev)
2440 struct mlx4_priv *priv = mlx4_priv(dev);
2443 if (!priv->cmd.initialized) {
2444 mutex_init(&priv->cmd.slave_cmd_mutex);
2445 sema_init(&priv->cmd.poll_sem, 1);
2446 priv->cmd.use_events = 0;
2447 priv->cmd.toggle = 1;
2448 priv->cmd.initialized = 1;
2449 flags |= MLX4_CMD_CLEANUP_STRUCT;
2452 if (!mlx4_is_slave(dev) && !priv->cmd.hcr) {
2453 priv->cmd.hcr = ioremap(pci_resource_start(dev->persist->pdev,
2454 0) + MLX4_HCR_BASE, MLX4_HCR_SIZE);
2455 if (!priv->cmd.hcr) {
2456 mlx4_err(dev, "Couldn't map command register\n");
2459 flags |= MLX4_CMD_CLEANUP_HCR;
2462 if (mlx4_is_mfunc(dev) && !priv->mfunc.vhcr) {
2463 priv->mfunc.vhcr = dma_alloc_coherent(&dev->persist->pdev->dev,
2465 &priv->mfunc.vhcr_dma,
2467 if (!priv->mfunc.vhcr)
2470 flags |= MLX4_CMD_CLEANUP_VHCR;
2473 if (!priv->cmd.pool) {
2474 priv->cmd.pool = pci_pool_create("mlx4_cmd",
2477 MLX4_MAILBOX_SIZE, 0);
2478 if (!priv->cmd.pool)
2481 flags |= MLX4_CMD_CLEANUP_POOL;
2487 mlx4_cmd_cleanup(dev, flags);
2491 void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev)
2493 struct mlx4_priv *priv = mlx4_priv(dev);
2497 /* Report an internal error event to all
2498 * communication channels.
2500 for (slave = 0; slave < dev->num_slaves; slave++) {
2501 slave_read = swab32(readl(&priv->mfunc.comm[slave].slave_read));
2502 slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR;
2503 __raw_writel((__force u32)cpu_to_be32(slave_read),
2504 &priv->mfunc.comm[slave].slave_read);
2505 /* Make sure that our comm channel write doesn't
2506 * get mixed in with writes from another CPU.
2512 void mlx4_multi_func_cleanup(struct mlx4_dev *dev)
2514 struct mlx4_priv *priv = mlx4_priv(dev);
2517 if (mlx4_is_master(dev)) {
2518 flush_workqueue(priv->mfunc.master.comm_wq);
2519 destroy_workqueue(priv->mfunc.master.comm_wq);
2520 for (i = 0; i < dev->num_slaves; i++) {
2521 for (port = 1; port <= MLX4_MAX_PORTS; port++)
2522 kfree(priv->mfunc.master.slave_state[i].vlan_filter[port]);
2524 kfree(priv->mfunc.master.slave_state);
2525 kfree(priv->mfunc.master.vf_admin);
2526 kfree(priv->mfunc.master.vf_oper);
2527 dev->num_slaves = 0;
2530 iounmap(priv->mfunc.comm);
2533 void mlx4_cmd_cleanup(struct mlx4_dev *dev, int cleanup_mask)
2535 struct mlx4_priv *priv = mlx4_priv(dev);
2537 if (priv->cmd.pool && (cleanup_mask & MLX4_CMD_CLEANUP_POOL)) {
2538 pci_pool_destroy(priv->cmd.pool);
2539 priv->cmd.pool = NULL;
2542 if (!mlx4_is_slave(dev) && priv->cmd.hcr &&
2543 (cleanup_mask & MLX4_CMD_CLEANUP_HCR)) {
2544 iounmap(priv->cmd.hcr);
2545 priv->cmd.hcr = NULL;
2547 if (mlx4_is_mfunc(dev) && priv->mfunc.vhcr &&
2548 (cleanup_mask & MLX4_CMD_CLEANUP_VHCR)) {
2549 dma_free_coherent(&dev->persist->pdev->dev, PAGE_SIZE,
2550 priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
2551 priv->mfunc.vhcr = NULL;
2553 if (priv->cmd.initialized && (cleanup_mask & MLX4_CMD_CLEANUP_STRUCT))
2554 priv->cmd.initialized = 0;
2558 * Switch to using events to issue FW commands (can only be called
2559 * after event queue for command events has been initialized).
2561 int mlx4_cmd_use_events(struct mlx4_dev *dev)
2563 struct mlx4_priv *priv = mlx4_priv(dev);
2567 priv->cmd.context = kmalloc(priv->cmd.max_cmds *
2568 sizeof (struct mlx4_cmd_context),
2570 if (!priv->cmd.context)
2573 for (i = 0; i < priv->cmd.max_cmds; ++i) {
2574 priv->cmd.context[i].token = i;
2575 priv->cmd.context[i].next = i + 1;
2576 /* To support fatal error flow, initialize all
2577 * cmd contexts to allow simulating completions
2578 * with complete() at any time.
2580 init_completion(&priv->cmd.context[i].done);
2583 priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
2584 priv->cmd.free_head = 0;
2586 sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
2587 spin_lock_init(&priv->cmd.context_lock);
2589 for (priv->cmd.token_mask = 1;
2590 priv->cmd.token_mask < priv->cmd.max_cmds;
2591 priv->cmd.token_mask <<= 1)
2593 --priv->cmd.token_mask;
2595 down(&priv->cmd.poll_sem);
2596 priv->cmd.use_events = 1;
2602 * Switch back to polling (used when shutting down the device)
2604 void mlx4_cmd_use_polling(struct mlx4_dev *dev)
2606 struct mlx4_priv *priv = mlx4_priv(dev);
2609 priv->cmd.use_events = 0;
2611 for (i = 0; i < priv->cmd.max_cmds; ++i)
2612 down(&priv->cmd.event_sem);
2614 kfree(priv->cmd.context);
2616 up(&priv->cmd.poll_sem);
2619 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
2621 struct mlx4_cmd_mailbox *mailbox;
2623 mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
2625 return ERR_PTR(-ENOMEM);
2627 mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
2629 if (!mailbox->buf) {
2631 return ERR_PTR(-ENOMEM);
2634 memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
2638 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
2640 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev,
2641 struct mlx4_cmd_mailbox *mailbox)
2646 pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
2649 EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
2651 u32 mlx4_comm_get_version(void)
2653 return ((u32) CMD_CHAN_IF_REV << 8) | (u32) CMD_CHAN_VER;
2656 static int mlx4_get_slave_indx(struct mlx4_dev *dev, int vf)
2658 if ((vf < 0) || (vf >= dev->persist->num_vfs)) {
2659 mlx4_err(dev, "Bad vf number:%d (number of activated vf: %d)\n",
2660 vf, dev->persist->num_vfs);
2667 int mlx4_get_vf_indx(struct mlx4_dev *dev, int slave)
2669 if (slave < 1 || slave > dev->persist->num_vfs) {
2671 "Bad slave number:%d (number of activated slaves: %lu)\n",
2672 slave, dev->num_slaves);
2678 void mlx4_cmd_wake_completions(struct mlx4_dev *dev)
2680 struct mlx4_priv *priv = mlx4_priv(dev);
2681 struct mlx4_cmd_context *context;
2684 spin_lock(&priv->cmd.context_lock);
2685 if (priv->cmd.context) {
2686 for (i = 0; i < priv->cmd.max_cmds; ++i) {
2687 context = &priv->cmd.context[i];
2688 context->fw_status = CMD_STAT_INTERNAL_ERR;
2690 mlx4_status_to_errno(CMD_STAT_INTERNAL_ERR);
2691 complete(&context->done);
2694 spin_unlock(&priv->cmd.context_lock);
2697 struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave)
2699 struct mlx4_active_ports actv_ports;
2702 bitmap_zero(actv_ports.ports, MLX4_MAX_PORTS);
2705 bitmap_fill(actv_ports.ports, dev->caps.num_ports);
2709 vf = mlx4_get_vf_indx(dev, slave);
2713 bitmap_set(actv_ports.ports, dev->dev_vfs[vf].min_port - 1,
2714 min((int)dev->dev_vfs[mlx4_get_vf_indx(dev, slave)].n_ports,
2715 dev->caps.num_ports));
2719 EXPORT_SYMBOL_GPL(mlx4_get_active_ports);
2721 int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port)
2724 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2725 unsigned m = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2727 if (port <= 0 || port > m)
2730 n = find_first_bit(actv_ports.ports, dev->caps.num_ports);
2736 EXPORT_SYMBOL_GPL(mlx4_slave_convert_port);
2738 int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port)
2740 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2741 if (test_bit(port - 1, actv_ports.ports))
2743 find_first_bit(actv_ports.ports, dev->caps.num_ports);
2747 EXPORT_SYMBOL_GPL(mlx4_phys_to_slave_port);
2749 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev,
2753 struct mlx4_slaves_pport slaves_pport;
2755 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2757 if (port <= 0 || port > dev->caps.num_ports)
2758 return slaves_pport;
2760 for (i = 0; i < dev->persist->num_vfs + 1; i++) {
2761 struct mlx4_active_ports actv_ports =
2762 mlx4_get_active_ports(dev, i);
2763 if (test_bit(port - 1, actv_ports.ports))
2764 set_bit(i, slaves_pport.slaves);
2767 return slaves_pport;
2769 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport);
2771 struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv(
2772 struct mlx4_dev *dev,
2773 const struct mlx4_active_ports *crit_ports)
2776 struct mlx4_slaves_pport slaves_pport;
2778 bitmap_zero(slaves_pport.slaves, MLX4_MFUNC_MAX);
2780 for (i = 0; i < dev->persist->num_vfs + 1; i++) {
2781 struct mlx4_active_ports actv_ports =
2782 mlx4_get_active_ports(dev, i);
2783 if (bitmap_equal(crit_ports->ports, actv_ports.ports,
2784 dev->caps.num_ports))
2785 set_bit(i, slaves_pport.slaves);
2788 return slaves_pport;
2790 EXPORT_SYMBOL_GPL(mlx4_phys_to_slaves_pport_actv);
2792 static int mlx4_slaves_closest_port(struct mlx4_dev *dev, int slave, int port)
2794 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, slave);
2795 int min_port = find_first_bit(actv_ports.ports, dev->caps.num_ports)
2797 int max_port = min_port +
2798 bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2800 if (port < min_port)
2802 else if (port >= max_port)
2803 port = max_port - 1;
2808 static int mlx4_set_vport_qos(struct mlx4_priv *priv, int slave, int port,
2813 struct mlx4_qos_manager *port_qos;
2814 struct mlx4_dev *dev = &priv->dev;
2815 struct mlx4_vport_qos_param vpp_qos[MLX4_NUM_UP];
2817 port_qos = &priv->mfunc.master.qos_ctl[port];
2818 memset(vpp_qos, 0, sizeof(struct mlx4_vport_qos_param) * MLX4_NUM_UP);
2820 if (slave > port_qos->num_of_qos_vfs) {
2821 mlx4_info(dev, "No availible VPP resources for this VF\n");
2825 /* Query for default QoS values from Vport 0 is needed */
2826 err = mlx4_SET_VPORT_QOS_get(dev, port, 0, vpp_qos);
2828 mlx4_info(dev, "Failed to query Vport 0 QoS values\n");
2832 for (i = 0; i < MLX4_NUM_UP; i++) {
2833 if (test_bit(i, port_qos->priority_bm) && max_tx_rate) {
2834 vpp_qos[i].max_avg_bw = max_tx_rate;
2835 vpp_qos[i].enable = 1;
2837 /* if user supplied tx_rate == 0, meaning no rate limit
2838 * configuration is required. so we are leaving the
2839 * value of max_avg_bw as queried from Vport 0.
2841 vpp_qos[i].enable = 0;
2845 err = mlx4_SET_VPORT_QOS_set(dev, port, slave, vpp_qos);
2847 mlx4_info(dev, "Failed to set Vport %d QoS values\n", slave);
2854 static bool mlx4_is_vf_vst_and_prio_qos(struct mlx4_dev *dev, int port,
2855 struct mlx4_vport_state *vf_admin)
2857 struct mlx4_qos_manager *info;
2858 struct mlx4_priv *priv = mlx4_priv(dev);
2860 if (!mlx4_is_master(dev) ||
2861 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP))
2864 info = &priv->mfunc.master.qos_ctl[port];
2866 if (vf_admin->default_vlan != MLX4_VGT &&
2867 test_bit(vf_admin->default_qos, info->priority_bm))
2873 static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port,
2874 struct mlx4_vport_state *vf_admin,
2877 struct mlx4_vport_state dummy_admin = {0};
2879 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) ||
2883 dummy_admin.default_qos = qos;
2884 dummy_admin.default_vlan = vlan;
2886 /* VF wants to move to other VST state which is valid with current
2887 * rate limit. Either differnt default vlan in VST or other
2888 * supported QoS priority. Otherwise we don't allow this change when
2889 * the TX rate is still configured.
2891 if (mlx4_is_vf_vst_and_prio_qos(dev, port, &dummy_admin))
2894 mlx4_info(dev, "Cannot change VF state to %s while rate is set\n",
2895 (vlan == MLX4_VGT) ? "VGT" : "VST");
2897 if (vlan != MLX4_VGT)
2898 mlx4_info(dev, "VST priority %d not supported for QoS\n", qos);
2900 mlx4_info(dev, "Please set rate to 0 prior to this VF state change\n");
2905 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)
2907 struct mlx4_priv *priv = mlx4_priv(dev);
2908 struct mlx4_vport_state *s_info;
2911 if (!mlx4_is_master(dev))
2912 return -EPROTONOSUPPORT;
2914 slave = mlx4_get_slave_indx(dev, vf);
2918 port = mlx4_slaves_closest_port(dev, slave, port);
2919 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
2921 mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n",
2922 vf, port, s_info->mac);
2925 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
2928 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
2930 struct mlx4_priv *priv = mlx4_priv(dev);
2931 struct mlx4_vport_state *vf_admin;
2934 if ((!mlx4_is_master(dev)) ||
2935 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL))
2936 return -EPROTONOSUPPORT;
2938 if ((vlan > 4095) || (qos > 7))
2941 slave = mlx4_get_slave_indx(dev, vf);
2945 port = mlx4_slaves_closest_port(dev, slave, port);
2946 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
2948 if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos))
2951 if ((0 == vlan) && (0 == qos))
2952 vf_admin->default_vlan = MLX4_VGT;
2954 vf_admin->default_vlan = vlan;
2955 vf_admin->default_qos = qos;
2957 /* If rate was configured prior to VST, we saved the configured rate
2958 * in vf_admin->rate and now, if priority supported we enforce the QoS
2960 if (mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin) &&
2962 vf_admin->qos_vport = slave;
2964 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
2966 "updating vf %d port %d config will take effect on next VF restart\n",
2970 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan);
2972 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate,
2977 struct mlx4_vport_state *vf_admin;
2978 struct mlx4_priv *priv = mlx4_priv(dev);
2980 if (!mlx4_is_master(dev) ||
2981 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QOS_VPP))
2982 return -EPROTONOSUPPORT;
2985 mlx4_info(dev, "Minimum BW share not supported\n");
2986 return -EPROTONOSUPPORT;
2989 slave = mlx4_get_slave_indx(dev, vf);
2993 port = mlx4_slaves_closest_port(dev, slave, port);
2994 vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
2996 err = mlx4_set_vport_qos(priv, slave, port, max_tx_rate);
2998 mlx4_info(dev, "vf %d failed to set rate %d\n", vf,
3003 vf_admin->tx_rate = max_tx_rate;
3004 /* if VF is not in supported mode (VST with supported prio),
3005 * we do not change vport configuration for its QPs, but save
3006 * the rate, so it will be enforced when it moves to supported
3009 if (!mlx4_is_vf_vst_and_prio_qos(dev, port, vf_admin)) {
3011 "rate set for VF %d when not in valid state\n", vf);
3013 if (vf_admin->default_vlan != MLX4_VGT)
3014 mlx4_info(dev, "VST priority not supported by QoS\n");
3016 mlx4_info(dev, "VF in VGT mode (needed VST)\n");
3019 "rate %d take affect when VF moves to valid state\n",
3024 /* If user sets rate 0 assigning default vport for its QPs */
3025 vf_admin->qos_vport = max_tx_rate ? slave : MLX4_VPP_DEFAULT_VPORT;
3027 if (priv->mfunc.master.slave_state[slave].active &&
3028 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)
3029 mlx4_master_immediate_activate_vlan_qos(priv, slave, port);
3033 EXPORT_SYMBOL_GPL(mlx4_set_vf_rate);
3035 /* mlx4_get_slave_default_vlan -
3036 * return true if VST ( default vlan)
3037 * if VST, will return vlan & qos (if not NULL)
3039 bool mlx4_get_slave_default_vlan(struct mlx4_dev *dev, int port, int slave,
3042 struct mlx4_vport_oper_state *vp_oper;
3043 struct mlx4_priv *priv;
3045 priv = mlx4_priv(dev);
3046 port = mlx4_slaves_closest_port(dev, slave, port);
3047 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
3049 if (MLX4_VGT != vp_oper->state.default_vlan) {
3051 *vlan = vp_oper->state.default_vlan;
3053 *qos = vp_oper->state.default_qos;
3058 EXPORT_SYMBOL_GPL(mlx4_get_slave_default_vlan);
3060 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting)
3062 struct mlx4_priv *priv = mlx4_priv(dev);
3063 struct mlx4_vport_state *s_info;
3066 if ((!mlx4_is_master(dev)) ||
3067 !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM))
3068 return -EPROTONOSUPPORT;
3070 slave = mlx4_get_slave_indx(dev, vf);
3074 port = mlx4_slaves_closest_port(dev, slave, port);
3075 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3076 s_info->spoofchk = setting;
3080 EXPORT_SYMBOL_GPL(mlx4_set_vf_spoofchk);
3082 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf)
3084 struct mlx4_priv *priv = mlx4_priv(dev);
3085 struct mlx4_vport_state *s_info;
3088 if (!mlx4_is_master(dev))
3089 return -EPROTONOSUPPORT;
3091 slave = mlx4_get_slave_indx(dev, vf);
3095 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3098 /* need to convert it to a func */
3099 ivf->mac[0] = ((s_info->mac >> (5*8)) & 0xff);
3100 ivf->mac[1] = ((s_info->mac >> (4*8)) & 0xff);
3101 ivf->mac[2] = ((s_info->mac >> (3*8)) & 0xff);
3102 ivf->mac[3] = ((s_info->mac >> (2*8)) & 0xff);
3103 ivf->mac[4] = ((s_info->mac >> (1*8)) & 0xff);
3104 ivf->mac[5] = ((s_info->mac) & 0xff);
3106 ivf->vlan = s_info->default_vlan;
3107 ivf->qos = s_info->default_qos;
3109 if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info))
3110 ivf->max_tx_rate = s_info->tx_rate;
3112 ivf->max_tx_rate = 0;
3114 ivf->min_tx_rate = 0;
3115 ivf->spoofchk = s_info->spoofchk;
3116 ivf->linkstate = s_info->link_state;
3120 EXPORT_SYMBOL_GPL(mlx4_get_vf_config);
3122 int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state)
3124 struct mlx4_priv *priv = mlx4_priv(dev);
3125 struct mlx4_vport_state *s_info;
3129 slave = mlx4_get_slave_indx(dev, vf);
3133 port = mlx4_slaves_closest_port(dev, slave, port);
3134 switch (link_state) {
3135 case IFLA_VF_LINK_STATE_AUTO:
3136 /* get current link state */
3137 if (!priv->sense.do_sense_port[port])
3138 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
3140 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
3143 case IFLA_VF_LINK_STATE_ENABLE:
3144 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
3147 case IFLA_VF_LINK_STATE_DISABLE:
3148 link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
3152 mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n",
3153 link_state, slave, port);
3156 s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
3157 s_info->link_state = link_state;
3160 mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event);
3162 if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
3164 "updating vf %d port %d no link state HW enforcment\n",
3168 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state);
3170 int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index,
3171 struct mlx4_counter *counter_stats, int reset)
3173 struct mlx4_cmd_mailbox *mailbox = NULL;
3174 struct mlx4_counter *tmp_counter;
3181 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev))
3184 mailbox = mlx4_alloc_cmd_mailbox(dev);
3185 if (IS_ERR(mailbox))
3186 return PTR_ERR(mailbox);
3188 memset(mailbox->buf, 0, sizeof(struct mlx4_counter));
3189 if_stat_in_mod = counter_index;
3191 if_stat_in_mod |= MLX4_QUERY_IF_STAT_RESET;
3192 err = mlx4_cmd_box(dev, 0, mailbox->dma,
3194 MLX4_CMD_QUERY_IF_STAT,
3195 MLX4_CMD_TIME_CLASS_C,
3198 mlx4_dbg(dev, "%s: failed to read statistics for counter index %d\n",
3199 __func__, counter_index);
3202 tmp_counter = (struct mlx4_counter *)mailbox->buf;
3203 counter_stats->counter_mode = tmp_counter->counter_mode;
3204 if (counter_stats->counter_mode == 0) {
3205 counter_stats->rx_frames =
3206 cpu_to_be64(be64_to_cpu(counter_stats->rx_frames) +
3207 be64_to_cpu(tmp_counter->rx_frames));
3208 counter_stats->tx_frames =
3209 cpu_to_be64(be64_to_cpu(counter_stats->tx_frames) +
3210 be64_to_cpu(tmp_counter->tx_frames));
3211 counter_stats->rx_bytes =
3212 cpu_to_be64(be64_to_cpu(counter_stats->rx_bytes) +
3213 be64_to_cpu(tmp_counter->rx_bytes));
3214 counter_stats->tx_bytes =
3215 cpu_to_be64(be64_to_cpu(counter_stats->tx_bytes) +
3216 be64_to_cpu(tmp_counter->tx_bytes));
3220 mlx4_free_cmd_mailbox(dev, mailbox);
3224 EXPORT_SYMBOL_GPL(mlx4_get_counter_stats);
3226 int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx,
3227 struct ifla_vf_stats *vf_stats)
3229 struct mlx4_counter tmp_vf_stats;
3236 if (!mlx4_is_master(dev))
3237 return -EPROTONOSUPPORT;
3239 slave = mlx4_get_slave_indx(dev, vf_idx);
3243 port = mlx4_slaves_closest_port(dev, slave, port);
3244 err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats);
3245 if (!err && tmp_vf_stats.counter_mode == 0) {
3246 vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames);
3247 vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames);
3248 vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes);
3249 vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes);
3254 EXPORT_SYMBOL_GPL(mlx4_get_vf_stats);
3256 int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port)
3258 struct mlx4_priv *priv = mlx4_priv(dev);
3260 if (slave < 1 || slave >= dev->num_slaves ||
3261 port < 1 || port > MLX4_MAX_PORTS)
3264 return priv->mfunc.master.vf_oper[slave].smi_enabled[port] ==
3265 MLX4_VF_SMI_ENABLED;
3267 EXPORT_SYMBOL_GPL(mlx4_vf_smi_enabled);
3269 int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port)
3271 struct mlx4_priv *priv = mlx4_priv(dev);
3273 if (slave == mlx4_master_func_num(dev))
3276 if (slave < 1 || slave >= dev->num_slaves ||
3277 port < 1 || port > MLX4_MAX_PORTS)
3280 return priv->mfunc.master.vf_admin[slave].enable_smi[port] ==
3281 MLX4_VF_SMI_ENABLED;
3283 EXPORT_SYMBOL_GPL(mlx4_vf_get_enable_smi_admin);
3285 int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
3288 struct mlx4_priv *priv = mlx4_priv(dev);
3289 struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
3291 int min_port = find_first_bit(actv_ports.ports,
3292 priv->dev.caps.num_ports) + 1;
3293 int max_port = min_port - 1 +
3294 bitmap_weight(actv_ports.ports, priv->dev.caps.num_ports);
3296 if (slave == mlx4_master_func_num(dev))
3299 if (slave < 1 || slave >= dev->num_slaves ||
3300 port < 1 || port > MLX4_MAX_PORTS ||
3301 enabled < 0 || enabled > 1)
3304 if (min_port == max_port && dev->caps.num_ports > 1) {
3305 mlx4_info(dev, "SMI access disallowed for single ported VFs\n");
3306 return -EPROTONOSUPPORT;
3309 priv->mfunc.master.vf_admin[slave].enable_smi[port] = enabled;
3312 EXPORT_SYMBOL_GPL(mlx4_vf_set_enable_smi_admin);