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062dbb69f3
linux_dsm_epyc7002/drivers/infiniband/hw/mthca/mthca_cmd.c
Michael S. Tsirkin 062dbb69f3 IB: Return qp pointer as part of ib_wc 
struct ib_wc currently only includes the local QP number: this matches
the IB spec, but seems mostly useless. The following patch replaces
this with the pointer to qp itself, and updates all low level drivers
and all users.

This has the following advantages:
- Ability to get a per-qp context through wc->qp->qp_context
- Existing drivers already have the qp pointer ready in poll cq, so
  this change actually saves a tiny bit (extra memory read) on data path
  (for ehca it would actually be expensive to find the QP pointer when
  polling a CQ, but ehca does not support SRQ so we can leave wc->qp as
  NULL for ehca)
- Users that need the QP number can still get it through wc->qp->qp_num

Use case:

In IPoIB connected mode code, I have a common CQ shared by multiple
QPs.  To track connection usage, I need a way to get at some per-QP
context upon the completion, and I would like to avoid allocating
context object per work request just to stick a QP pointer into it.
With this code, I can just use wc->qp->qp_context.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-04 14:11:55 -08:00

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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $
*/
#include <linux/completion.h>
#include <linux/pci.h>
#include <linux/errno.h>
#include <asm/io.h>
#include <rdma/ib_mad.h>
#include "mthca_dev.h"
#include "mthca_config_reg.h"
#include "mthca_cmd.h"
#include "mthca_memfree.h"
#define CMD_POLL_TOKEN 0xffff
enum {
HCR_IN_PARAM_OFFSET = 0x00,
HCR_IN_MODIFIER_OFFSET = 0x08,
HCR_OUT_PARAM_OFFSET = 0x0c,
HCR_TOKEN_OFFSET = 0x14,
HCR_STATUS_OFFSET = 0x18,
HCR_OPMOD_SHIFT = 12,
HCA_E_BIT = 22,
HCR_GO_BIT = 23
};
enum {
/* initialization and general commands */
CMD_SYS_EN = 0x1,
CMD_SYS_DIS = 0x2,
CMD_MAP_FA = 0xfff,
CMD_UNMAP_FA = 0xffe,
CMD_RUN_FW = 0xff6,
CMD_MOD_STAT_CFG = 0x34,
CMD_QUERY_DEV_LIM = 0x3,
CMD_QUERY_FW = 0x4,
CMD_ENABLE_LAM = 0xff8,
CMD_DISABLE_LAM = 0xff7,
CMD_QUERY_DDR = 0x5,
CMD_QUERY_ADAPTER = 0x6,
CMD_INIT_HCA = 0x7,
CMD_CLOSE_HCA = 0x8,
CMD_INIT_IB = 0x9,
CMD_CLOSE_IB = 0xa,
CMD_QUERY_HCA = 0xb,
CMD_SET_IB = 0xc,
CMD_ACCESS_DDR = 0x2e,
CMD_MAP_ICM = 0xffa,
CMD_UNMAP_ICM = 0xff9,
CMD_MAP_ICM_AUX = 0xffc,
CMD_UNMAP_ICM_AUX = 0xffb,
CMD_SET_ICM_SIZE = 0xffd,
/* TPT commands */
CMD_SW2HW_MPT = 0xd,
CMD_QUERY_MPT = 0xe,
CMD_HW2SW_MPT = 0xf,
CMD_READ_MTT = 0x10,
CMD_WRITE_MTT = 0x11,
CMD_SYNC_TPT = 0x2f,
/* EQ commands */
CMD_MAP_EQ = 0x12,
CMD_SW2HW_EQ = 0x13,
CMD_HW2SW_EQ = 0x14,
CMD_QUERY_EQ = 0x15,
/* CQ commands */
CMD_SW2HW_CQ = 0x16,
CMD_HW2SW_CQ = 0x17,
CMD_QUERY_CQ = 0x18,
CMD_RESIZE_CQ = 0x2c,
/* SRQ commands */
CMD_SW2HW_SRQ = 0x35,
CMD_HW2SW_SRQ = 0x36,
CMD_QUERY_SRQ = 0x37,
CMD_ARM_SRQ = 0x40,
/* QP/EE commands */
CMD_RST2INIT_QPEE = 0x19,
CMD_INIT2RTR_QPEE = 0x1a,
CMD_RTR2RTS_QPEE = 0x1b,
CMD_RTS2RTS_QPEE = 0x1c,
CMD_SQERR2RTS_QPEE = 0x1d,
CMD_2ERR_QPEE = 0x1e,
CMD_RTS2SQD_QPEE = 0x1f,
CMD_SQD2SQD_QPEE = 0x38,
CMD_SQD2RTS_QPEE = 0x20,
CMD_ERR2RST_QPEE = 0x21,
CMD_QUERY_QPEE = 0x22,
CMD_INIT2INIT_QPEE = 0x2d,
CMD_SUSPEND_QPEE = 0x32,
CMD_UNSUSPEND_QPEE = 0x33,
/* special QPs and management commands */
CMD_CONF_SPECIAL_QP = 0x23,
CMD_MAD_IFC = 0x24,
/* multicast commands */
CMD_READ_MGM = 0x25,
CMD_WRITE_MGM = 0x26,
CMD_MGID_HASH = 0x27,
/* miscellaneous commands */
CMD_DIAG_RPRT = 0x30,
CMD_NOP = 0x31,
/* debug commands */
CMD_QUERY_DEBUG_MSG = 0x2a,
CMD_SET_DEBUG_MSG = 0x2b,
};
/*
* According to Mellanox code, FW may be starved and never complete
* commands. So we can't use strict timeouts described in PRM -- we
* just arbitrarily select 60 seconds for now.
*/
#if 0
/*
* Round up and add 1 to make sure we get the full wait time (since we
* will be starting in the middle of a jiffy)
*/
enum {
CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1,
CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1,
CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1
};
#else
enum {
CMD_TIME_CLASS_A = 60 * HZ,
CMD_TIME_CLASS_B = 60 * HZ,
CMD_TIME_CLASS_C = 60 * HZ
};
#endif
enum {
GO_BIT_TIMEOUT = HZ * 10
};
struct mthca_cmd_context {
struct completion done;
int result;
int next;
u64 out_param;
u16 token;
u8 status;
};
static int fw_cmd_doorbell = 0;
module_param(fw_cmd_doorbell, int, 0644);
MODULE_PARM_DESC(fw_cmd_doorbell, "post FW commands through doorbell page if nonzero "
"(and supported by FW)");
static inline int go_bit(struct mthca_dev *dev)
{
return readl(dev->hcr + HCR_STATUS_OFFSET) &
swab32(1 << HCR_GO_BIT);
}
static void mthca_cmd_post_dbell(struct mthca_dev *dev,
u64 in_param,
u64 out_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
u16 token)
{
void __iomem *ptr = dev->cmd.dbell_map;
u16 *offs = dev->cmd.dbell_offsets;
__raw_writel((__force u32) cpu_to_be32(in_param >> 32), ptr + offs[0]);
wmb();
__raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), ptr + offs[1]);
wmb();
__raw_writel((__force u32) cpu_to_be32(in_modifier), ptr + offs[2]);
wmb();
__raw_writel((__force u32) cpu_to_be32(out_param >> 32), ptr + offs[3]);
wmb();
__raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), ptr + offs[4]);
wmb();
__raw_writel((__force u32) cpu_to_be32(token << 16), ptr + offs[5]);
wmb();
__raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
(1 << HCA_E_BIT) |
(op_modifier << HCR_OPMOD_SHIFT) |
op), ptr + offs[6]);
wmb();
__raw_writel((__force u32) 0, ptr + offs[7]);
wmb();
}
static int mthca_cmd_post_hcr(struct mthca_dev *dev,
u64 in_param,
u64 out_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
u16 token,
int event)
{
if (event) {
unsigned long end = jiffies + GO_BIT_TIMEOUT;
while (go_bit(dev) && time_before(jiffies, end)) {
set_current_state(TASK_RUNNING);
schedule();
}
}
if (go_bit(dev))
return -EAGAIN;
/*
* We use writel (instead of something like memcpy_toio)
* because writes of less than 32 bits to the HCR don't work
* (and some architectures such as ia64 implement memcpy_toio
* in terms of writeb).
*/
__raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4);
__raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4);
__raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4);
__raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4);
__raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4);
__raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4);
/* __raw_writel may not order writes. */
wmb();
__raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) |
(event ? (1 << HCA_E_BIT) : 0) |
(op_modifier << HCR_OPMOD_SHIFT) |
op), dev->hcr + 6 * 4);
return 0;
}
static int mthca_cmd_post(struct mthca_dev *dev,
u64 in_param,
u64 out_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
u16 token,
int event)
{
int err = 0;
mutex_lock(&dev->cmd.hcr_mutex);
if (event && dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS && fw_cmd_doorbell)
mthca_cmd_post_dbell(dev, in_param, out_param, in_modifier,
op_modifier, op, token);
else
err = mthca_cmd_post_hcr(dev, in_param, out_param, in_modifier,
op_modifier, op, token, event);
mutex_unlock(&dev->cmd.hcr_mutex);
return err;
}
static int mthca_cmd_poll(struct mthca_dev *dev,
u64 in_param,
u64 *out_param,
int out_is_imm,
u32 in_modifier,
u8 op_modifier,
u16 op,
unsigned long timeout,
u8 *status)
{
int err = 0;
unsigned long end;
down(&dev->cmd.poll_sem);
err = mthca_cmd_post(dev, in_param,
out_param ? *out_param : 0,
in_modifier, op_modifier,
op, CMD_POLL_TOKEN, 0);
if (err)
goto out;
end = timeout + jiffies;
while (go_bit(dev) && time_before(jiffies, end)) {
set_current_state(TASK_RUNNING);
schedule();
}
if (go_bit(dev)) {
err = -EBUSY;
goto out;
}
if (out_is_imm)
*out_param =
(u64) be32_to_cpu((__force __be32)
__raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
(u64) be32_to_cpu((__force __be32)
__raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4));
*status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24;
out:
up(&dev->cmd.poll_sem);
return err;
}
void mthca_cmd_event(struct mthca_dev *dev,
u16 token,
u8 status,
u64 out_param)
{
struct mthca_cmd_context *context =
&dev->cmd.context[token & dev->cmd.token_mask];
/* previously timed out command completing at long last */
if (token != context->token)
return;
context->result = 0;
context->status = status;
context->out_param = out_param;
context->token += dev->cmd.token_mask + 1;
complete(&context->done);
}
static int mthca_cmd_wait(struct mthca_dev *dev,
u64 in_param,
u64 *out_param,
int out_is_imm,
u32 in_modifier,
u8 op_modifier,
u16 op,
unsigned long timeout,
u8 *status)
{
int err = 0;
struct mthca_cmd_context *context;
down(&dev->cmd.event_sem);
spin_lock(&dev->cmd.context_lock);
BUG_ON(dev->cmd.free_head < 0);
context = &dev->cmd.context[dev->cmd.free_head];
dev->cmd.free_head = context->next;
spin_unlock(&dev->cmd.context_lock);
init_completion(&context->done);
err = mthca_cmd_post(dev, in_param,
out_param ? *out_param : 0,
in_modifier, op_modifier,
op, context->token, 1);
if (err)
goto out;
if (!wait_for_completion_timeout(&context->done, timeout)) {
err = -EBUSY;
goto out;
}
err = context->result;
if (err)
goto out;
*status = context->status;
if (*status)
mthca_dbg(dev, "Command %02x completed with status %02x\n",
op, *status);
if (out_is_imm)
*out_param = context->out_param;
out:
spin_lock(&dev->cmd.context_lock);
context->next = dev->cmd.free_head;
dev->cmd.free_head = context - dev->cmd.context;
spin_unlock(&dev->cmd.context_lock);
up(&dev->cmd.event_sem);
return err;
}
/* Invoke a command with an output mailbox */
static int mthca_cmd_box(struct mthca_dev *dev,
u64 in_param,
u64 out_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
unsigned long timeout,
u8 *status)
{
if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS)
return mthca_cmd_wait(dev, in_param, &out_param, 0,
in_modifier, op_modifier, op,
timeout, status);
else
return mthca_cmd_poll(dev, in_param, &out_param, 0,
in_modifier, op_modifier, op,
timeout, status);
}
/* Invoke a command with no output parameter */
static int mthca_cmd(struct mthca_dev *dev,
u64 in_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
unsigned long timeout,
u8 *status)
{
return mthca_cmd_box(dev, in_param, 0, in_modifier,
op_modifier, op, timeout, status);
}
/*
* Invoke a command with an immediate output parameter (and copy the
* output into the caller's out_param pointer after the command
* executes).
*/
static int mthca_cmd_imm(struct mthca_dev *dev,
u64 in_param,
u64 *out_param,
u32 in_modifier,
u8 op_modifier,
u16 op,
unsigned long timeout,
u8 *status)
{
if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS)
return mthca_cmd_wait(dev, in_param, out_param, 1,
in_modifier, op_modifier, op,
timeout, status);
else
return mthca_cmd_poll(dev, in_param, out_param, 1,
in_modifier, op_modifier, op,
timeout, status);
}
int mthca_cmd_init(struct mthca_dev *dev)
{
mutex_init(&dev->cmd.hcr_mutex);
sema_init(&dev->cmd.poll_sem, 1);
dev->cmd.flags = 0;
dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE,
MTHCA_HCR_SIZE);
if (!dev->hcr) {
mthca_err(dev, "Couldn't map command register.");
return -ENOMEM;
}
dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev,
MTHCA_MAILBOX_SIZE,
MTHCA_MAILBOX_SIZE, 0);
if (!dev->cmd.pool) {
iounmap(dev->hcr);
return -ENOMEM;
}
return 0;
}
void mthca_cmd_cleanup(struct mthca_dev *dev)
{
pci_pool_destroy(dev->cmd.pool);
iounmap(dev->hcr);
if (dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS)
iounmap(dev->cmd.dbell_map);
}
/*
* Switch to using events to issue FW commands (should be called after
* event queue to command events has been initialized).
*/
int mthca_cmd_use_events(struct mthca_dev *dev)
{
int i;
dev->cmd.context = kmalloc(dev->cmd.max_cmds *
sizeof (struct mthca_cmd_context),
GFP_KERNEL);
if (!dev->cmd.context)
return -ENOMEM;
for (i = 0; i < dev->cmd.max_cmds; ++i) {
dev->cmd.context[i].token = i;
dev->cmd.context[i].next = i + 1;
}
dev->cmd.context[dev->cmd.max_cmds - 1].next = -1;
dev->cmd.free_head = 0;
sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds);
spin_lock_init(&dev->cmd.context_lock);
for (dev->cmd.token_mask = 1;
dev->cmd.token_mask < dev->cmd.max_cmds;
dev->cmd.token_mask <<= 1)
; /* nothing */
--dev->cmd.token_mask;
dev->cmd.flags |= MTHCA_CMD_USE_EVENTS;
down(&dev->cmd.poll_sem);
return 0;
}
/*
* Switch back to polling (used when shutting down the device)
*/
void mthca_cmd_use_polling(struct mthca_dev *dev)
{
int i;
dev->cmd.flags &= ~MTHCA_CMD_USE_EVENTS;
for (i = 0; i < dev->cmd.max_cmds; ++i)
down(&dev->cmd.event_sem);
kfree(dev->cmd.context);
up(&dev->cmd.poll_sem);
}
struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev,
gfp_t gfp_mask)
{
struct mthca_mailbox *mailbox;
mailbox = kmalloc(sizeof *mailbox, gfp_mask);
if (!mailbox)
return ERR_PTR(-ENOMEM);
mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma);
if (!mailbox->buf) {
kfree(mailbox);
return ERR_PTR(-ENOMEM);
}
return mailbox;
}
void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox)
{
if (!mailbox)
return;
pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma);
kfree(mailbox);
}
int mthca_SYS_EN(struct mthca_dev *dev, u8 *status)
{
u64 out;
int ret;
ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status);
if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR)
mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, "
"sladdr=%d, SPD source=%s\n",
(int) (out >> 6) & 0xf, (int) (out >> 4) & 3,
(int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM");
return ret;
}
int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status);
}
static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm,
u64 virt, u8 *status)
{
struct mthca_mailbox *mailbox;
struct mthca_icm_iter iter;
__be64 *pages;
int lg;
int nent = 0;
int i;
int err = 0;
int ts = 0, tc = 0;
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE);
pages = mailbox->buf;
for (mthca_icm_first(icm, &iter);
!mthca_icm_last(&iter);
mthca_icm_next(&iter)) {
/*
* We have to pass pages that are aligned to their
* size, so find the least significant 1 in the
* address or size and use that as our log2 size.
*/
lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1;
if (lg < MTHCA_ICM_PAGE_SHIFT) {
mthca_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
MTHCA_ICM_PAGE_SIZE,
(unsigned long long) mthca_icm_addr(&iter),
mthca_icm_size(&iter));
err = -EINVAL;
goto out;
}
for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) {
if (virt != -1) {
pages[nent * 2] = cpu_to_be64(virt);
virt += 1 << lg;
}
pages[nent * 2 + 1] =
cpu_to_be64((mthca_icm_addr(&iter) + (i << lg)) |
(lg - MTHCA_ICM_PAGE_SHIFT));
ts += 1 << (lg - 10);
++tc;
if (++nent == MTHCA_MAILBOX_SIZE / 16) {
err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
CMD_TIME_CLASS_B, status);
if (err || *status)
goto out;
nent = 0;
}
}
}
if (nent)
err = mthca_cmd(dev, mailbox->dma, nent, 0, op,
CMD_TIME_CLASS_B, status);
switch (op) {
case CMD_MAP_FA:
mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
break;
case CMD_MAP_ICM_AUX:
mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
break;
case CMD_MAP_ICM:
mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
tc, ts, (unsigned long long) virt - (ts << 10));
break;
}
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
{
return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1, status);
}
int mthca_UNMAP_FA(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B, status);
}
int mthca_RUN_FW(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A, status);
}
static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
{
unsigned long addr;
u16 max_off = 0;
int i;
for (i = 0; i < 8; ++i)
max_off = max(max_off, dev->cmd.dbell_offsets[i]);
if ((base & PAGE_MASK) != ((base + max_off) & PAGE_MASK)) {
mthca_warn(dev, "Firmware doorbell region at 0x%016llx, "
"length 0x%x crosses a page boundary\n",
(unsigned long long) base, max_off);
return;
}
addr = pci_resource_start(dev->pdev, 2) +
((pci_resource_len(dev->pdev, 2) - 1) & base);
dev->cmd.dbell_map = ioremap(addr, max_off + sizeof(u32));
if (!dev->cmd.dbell_map)
return;
dev->cmd.flags |= MTHCA_CMD_POST_DOORBELLS;
mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
}
int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
{
struct mthca_mailbox *mailbox;
u32 *outbox;
u64 base;
u32 tmp;
int err = 0;
u8 lg;
int i;
#define QUERY_FW_OUT_SIZE 0x100
#define QUERY_FW_VER_OFFSET 0x00
#define QUERY_FW_MAX_CMD_OFFSET 0x0f
#define QUERY_FW_ERR_START_OFFSET 0x30
#define QUERY_FW_ERR_SIZE_OFFSET 0x38
#define QUERY_FW_CMD_DB_EN_OFFSET 0x10
#define QUERY_FW_CMD_DB_OFFSET 0x50
#define QUERY_FW_CMD_DB_BASE 0x60
#define QUERY_FW_START_OFFSET 0x20
#define QUERY_FW_END_OFFSET 0x28
#define QUERY_FW_SIZE_OFFSET 0x00
#define QUERY_FW_CLR_INT_BASE_OFFSET 0x20
#define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40
#define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW,
CMD_TIME_CLASS_A, status);
if (err)
goto out;
MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET);
/*
* FW subminor version is at more signifant bits than minor
* version, so swap here.
*/
dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) |
((dev->fw_ver & 0xffff0000ull) >> 16) |
((dev->fw_ver & 0x0000ffffull) << 16);
MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
dev->cmd.max_cmds = 1 << lg;
mthca_dbg(dev, "FW version %012llx, max commands %d\n",
(unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET);
MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n",
(unsigned long long) dev->catas_err.addr, dev->catas_err.size);
MTHCA_GET(tmp, outbox, QUERY_FW_CMD_DB_EN_OFFSET);
if (tmp & 0x1) {
mthca_dbg(dev, "FW supports commands through doorbells\n");
MTHCA_GET(base, outbox, QUERY_FW_CMD_DB_BASE);
for (i = 0; i < MTHCA_CMD_NUM_DBELL_DWORDS; ++i)
MTHCA_GET(dev->cmd.dbell_offsets[i], outbox,
QUERY_FW_CMD_DB_OFFSET + (i << 1));
mthca_setup_cmd_doorbells(dev, base);
}
if (mthca_is_memfree(dev)) {
MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET);
MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET);
MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET);
mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2);
/*
* Round up number of system pages needed in case
* MTHCA_ICM_PAGE_SIZE < PAGE_SIZE.
*/
dev->fw.arbel.fw_pages =
ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >>
(PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n",
(unsigned long long) dev->fw.arbel.clr_int_base,
(unsigned long long) dev->fw.arbel.eq_arm_base,
(unsigned long long) dev->fw.arbel.eq_set_ci_base);
} else {
MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET);
MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET);
mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n",
(int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10),
(unsigned long long) dev->fw.tavor.fw_start,
(unsigned long long) dev->fw.tavor.fw_end);
}
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status)
{
struct mthca_mailbox *mailbox;
u8 info;
u32 *outbox;
int err = 0;
#define ENABLE_LAM_OUT_SIZE 0x100
#define ENABLE_LAM_START_OFFSET 0x00
#define ENABLE_LAM_END_OFFSET 0x08
#define ENABLE_LAM_INFO_OFFSET 0x13
#define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4)
#define ENABLE_LAM_INFO_ECC_MASK 0x3
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM,
CMD_TIME_CLASS_C, status);
if (err)
goto out;
if (*status == MTHCA_CMD_STAT_LAM_NOT_PRE)
goto out;
MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET);
MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET);
MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET);
if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) !=
!!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
mthca_info(dev, "FW reports that HCA-attached memory "
"is %s hidden; does not match PCI config\n",
(info & ENABLE_LAM_INFO_HIDDEN_FLAG) ?
"" : "not");
}
if (info & ENABLE_LAM_INFO_HIDDEN_FLAG)
mthca_dbg(dev, "HCA-attached memory is hidden.\n");
mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
(int) ((dev->ddr_end - dev->ddr_start) >> 10),
(unsigned long long) dev->ddr_start,
(unsigned long long) dev->ddr_end);
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status);
}
int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status)
{
struct mthca_mailbox *mailbox;
u8 info;
u32 *outbox;
int err = 0;
#define QUERY_DDR_OUT_SIZE 0x100
#define QUERY_DDR_START_OFFSET 0x00
#define QUERY_DDR_END_OFFSET 0x08
#define QUERY_DDR_INFO_OFFSET 0x13
#define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4)
#define QUERY_DDR_INFO_ECC_MASK 0x3
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR,
CMD_TIME_CLASS_A, status);
if (err)
goto out;
MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET);
MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET);
MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET);
if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) !=
!!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
mthca_info(dev, "FW reports that HCA-attached memory "
"is %s hidden; does not match PCI config\n",
(info & QUERY_DDR_INFO_HIDDEN_FLAG) ?
"" : "not");
}
if (info & QUERY_DDR_INFO_HIDDEN_FLAG)
mthca_dbg(dev, "HCA-attached memory is hidden.\n");
mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
(int) ((dev->ddr_end - dev->ddr_start) >> 10),
(unsigned long long) dev->ddr_start,
(unsigned long long) dev->ddr_end);
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
struct mthca_dev_lim *dev_lim, u8 *status)
{
struct mthca_mailbox *mailbox;
u32 *outbox;
u8 field;
u16 size;
u16 stat_rate;
int err;
#define QUERY_DEV_LIM_OUT_SIZE 0x100
#define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10
#define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11
#define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12
#define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13
#define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14
#define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15
#define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16
#define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17
#define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19
#define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a
#define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b
#define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d
#define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e
#define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f
#define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20
#define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21
#define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22
#define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23
#define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27
#define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29
#define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b
#define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f
#define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33
#define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35
#define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36
#define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37
#define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b
#define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c
#define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f
#define QUERY_DEV_LIM_FLAGS_OFFSET 0x44
#define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48
#define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49
#define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b
#define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51
#define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52
#define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55
#define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56
#define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61
#define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62
#define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63
#define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64
#define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65
#define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66
#define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67
#define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80
#define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82
#define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84
#define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86
#define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88
#define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a
#define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c
#define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e
#define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90
#define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92
#define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96
#define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97
#define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98
#define QUERY_DEV_LIM_LAMR_OFFSET 0x9f
#define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM,
CMD_TIME_CLASS_A, status);
if (err)
goto out;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET);
dev_lim->reserved_qps = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET);
dev_lim->max_qps = 1 << (field & 0x1f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET);
dev_lim->reserved_srqs = 1 << (field >> 4);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET);
dev_lim->max_srqs = 1 << (field & 0x1f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET);
dev_lim->reserved_eecs = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET);
dev_lim->max_eecs = 1 << (field & 0x1f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET);
dev_lim->max_cq_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET);
dev_lim->reserved_cqs = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET);
dev_lim->max_cqs = 1 << (field & 0x1f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET);
dev_lim->max_mpts = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET);
dev_lim->reserved_eqs = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
dev_lim->max_eqs = 1 << (field & 0x7);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
dev_lim->reserved_mtts = 1 << (field >> 4);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
dev_lim->max_mrw_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);
dev_lim->reserved_mrws = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET);
dev_lim->max_mtt_seg = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET);
dev_lim->max_requester_per_qp = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET);
dev_lim->max_responder_per_qp = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET);
dev_lim->max_rdma_global = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET);
dev_lim->local_ca_ack_delay = field & 0x1f;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET);
dev_lim->max_mtu = field >> 4;
dev_lim->max_port_width = field & 0xf;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET);
dev_lim->max_vl = field >> 4;
dev_lim->num_ports = field & 0xf;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET);
dev_lim->max_gids = 1 << (field & 0xf);
MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET);
dev_lim->stat_rate_support = stat_rate;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET);
dev_lim->max_pkeys = 1 << (field & 0xf);
MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET);
dev_lim->reserved_uars = field >> 4;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET);
dev_lim->uar_size = 1 << ((field & 0x3f) + 20);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET);
dev_lim->min_page_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET);
dev_lim->max_sg = field;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET);
dev_lim->max_desc_sz = size;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET);
dev_lim->max_qp_per_mcg = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET);
dev_lim->reserved_mgms = field & 0xf;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET);
dev_lim->max_mcgs = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET);
dev_lim->reserved_pds = field >> 4;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET);
dev_lim->max_pds = 1 << (field & 0x3f);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET);
dev_lim->reserved_rdds = field >> 4;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET);
dev_lim->max_rdds = 1 << (field & 0x3f);
MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET);
dev_lim->eec_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET);
dev_lim->qpc_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET);
dev_lim->eeec_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET);
dev_lim->eqpc_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET);
dev_lim->eqc_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET);
dev_lim->cqc_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET);
dev_lim->srq_entry_sz = size;
MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET);
dev_lim->uar_scratch_entry_sz = size;
if (mthca_is_memfree(dev)) {
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
dev_lim->max_srq_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
dev_lim->max_qp_sz = 1 << field;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET);
dev_lim->hca.arbel.resize_srq = field & 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET);
dev_lim->max_sg = min_t(int, field, dev_lim->max_sg);
MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET);
dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz);
MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET);
dev_lim->mpt_entry_sz = size;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET);
dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f);
MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox,
QUERY_DEV_LIM_BMME_FLAGS_OFFSET);
MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox,
QUERY_DEV_LIM_RSVD_LKEY_OFFSET);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET);
dev_lim->hca.arbel.lam_required = field & 1;
MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox,
QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET);
if (dev_lim->hca.arbel.bmme_flags & 1)
mthca_dbg(dev, "Base MM extensions: yes "
"(flags %d, max PBL %d, rsvd L_Key %08x)\n",
dev_lim->hca.arbel.bmme_flags,
dev_lim->hca.arbel.max_pbl_sz,
dev_lim->hca.arbel.reserved_lkey);
else
mthca_dbg(dev, "Base MM extensions: no\n");
mthca_dbg(dev, "Max ICM size %lld MB\n",
(unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20);
} else {
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
dev_lim->max_srq_sz = (1 << field) - 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
dev_lim->max_qp_sz = (1 << field) - 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET);
dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f);
dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE;
}
mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz);
mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
dev_lim->reserved_mrws, dev_lim->reserved_mtts);
mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
dev_lim->max_pds, dev_lim->reserved_mgms);
mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
static void get_board_id(void *vsd, char *board_id)
{
int i;
#define VSD_OFFSET_SIG1 0x00
#define VSD_OFFSET_SIG2 0xde
#define VSD_OFFSET_MLX_BOARD_ID 0xd0
#define VSD_OFFSET_TS_BOARD_ID 0x20
#define VSD_SIGNATURE_TOPSPIN 0x5ad
memset(board_id, 0, MTHCA_BOARD_ID_LEN);
if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN);
} else {
/*
* The board ID is a string but the firmware byte
* swaps each 4-byte word before passing it back to
* us. Therefore we need to swab it before printing.
*/
for (i = 0; i < 4; ++i)
((u32 *) board_id)[i] =
swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
}
}
int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
struct mthca_adapter *adapter, u8 *status)
{
struct mthca_mailbox *mailbox;
u32 *outbox;
int err;
#define QUERY_ADAPTER_OUT_SIZE 0x100
#define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00
#define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04
#define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08
#define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10
#define QUERY_ADAPTER_VSD_OFFSET 0x20
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
outbox = mailbox->buf;
err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER,
CMD_TIME_CLASS_A, status);
if (err)
goto out;
MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET);
MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET);
MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
adapter->board_id);
out:
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_INIT_HCA(struct mthca_dev *dev,
struct mthca_init_hca_param *param,
u8 *status)
{
struct mthca_mailbox *mailbox;
__be32 *inbox;
int err;
#define INIT_HCA_IN_SIZE 0x200
#define INIT_HCA_FLAGS1_OFFSET 0x00c
#define INIT_HCA_FLAGS2_OFFSET 0x014
#define INIT_HCA_QPC_OFFSET 0x020
#define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10)
#define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17)
#define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20)
#define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27)
#define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28)
#define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f)
#define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30)
#define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37)
#define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40)
#define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50)
#define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60)
#define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67)
#define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70)
#define INIT_HCA_UDAV_OFFSET 0x0b0
#define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0)
#define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4)
#define INIT_HCA_MCAST_OFFSET 0x0c0
#define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00)
#define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
#define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16)
#define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
#define INIT_HCA_TPT_OFFSET 0x0f0
#define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00)
#define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09)
#define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b)
#define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10)
#define INIT_HCA_UAR_OFFSET 0x120
#define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00)
#define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09)
#define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a)
#define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b)
#define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10)
#define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18)
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
memset(inbox, 0, INIT_HCA_IN_SIZE);
if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET);
#if defined(__LITTLE_ENDIAN)
*(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
#elif defined(__BIG_ENDIAN)
*(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1);
#else
#error Host endianness not defined
#endif
/* Check port for UD address vector: */
*(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1);
/* We leave wqe_quota, responder_exu, etc as 0 (default) */
/* QPC/EEC/CQC/EQC/RDB attributes */
MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET);
MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET);
MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET);
MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET);
MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET);
MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET);
MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET);
/* UD AV attributes */
/* multicast attributes */
MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET);
MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET);
MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
/* TPT attributes */
MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET);
if (!mthca_is_memfree(dev))
MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET);
MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET);
/* UAR attributes */
{
u8 uar_page_sz = PAGE_SHIFT - 12;
MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
}
MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET);
if (mthca_is_memfree(dev)) {
MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET);
MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET);
MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET);
}
err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status);
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_INIT_IB(struct mthca_dev *dev,
struct mthca_init_ib_param *param,
int port, u8 *status)
{
struct mthca_mailbox *mailbox;
u32 *inbox;
int err;
u32 flags;
#define INIT_IB_IN_SIZE 56
#define INIT_IB_FLAGS_OFFSET 0x00
#define INIT_IB_FLAG_SIG (1 << 18)
#define INIT_IB_FLAG_NG (1 << 17)
#define INIT_IB_FLAG_G0 (1 << 16)
#define INIT_IB_VL_SHIFT 4
#define INIT_IB_PORT_WIDTH_SHIFT 8
#define INIT_IB_MTU_SHIFT 12
#define INIT_IB_MAX_GID_OFFSET 0x06
#define INIT_IB_MAX_PKEY_OFFSET 0x0a
#define INIT_IB_GUID0_OFFSET 0x10
#define INIT_IB_NODE_GUID_OFFSET 0x18
#define INIT_IB_SI_GUID_OFFSET 0x20
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
memset(inbox, 0, INIT_IB_IN_SIZE);
flags = 0;
flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0;
flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0;
flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0;
flags |= param->vl_cap << INIT_IB_VL_SHIFT;
flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT;
flags |= param->mtu_cap << INIT_IB_MTU_SHIFT;
MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET);
MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET);
MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET);
MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET);
MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET);
MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET);
err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB,
CMD_TIME_CLASS_A, status);
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status)
{
return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status);
}
int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status)
{
return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status);
}
int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param,
int port, u8 *status)
{
struct mthca_mailbox *mailbox;
u32 *inbox;
int err;
u32 flags = 0;
#define SET_IB_IN_SIZE 0x40
#define SET_IB_FLAGS_OFFSET 0x00
#define SET_IB_FLAG_SIG (1 << 18)
#define SET_IB_FLAG_RQK (1 << 0)
#define SET_IB_CAP_MASK_OFFSET 0x04
#define SET_IB_SI_GUID_OFFSET 0x08
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
memset(inbox, 0, SET_IB_IN_SIZE);
flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0;
flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0;
MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET);
MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET);
MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET);
err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB,
CMD_TIME_CLASS_B, status);
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *status)
{
return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt, status);
}
int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status)
{
struct mthca_mailbox *mailbox;
__be64 *inbox;
int err;
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
inbox[0] = cpu_to_be64(virt);
inbox[1] = cpu_to_be64(dma_addr);
err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM,
CMD_TIME_CLASS_B, status);
mthca_free_mailbox(dev, mailbox);
if (!err)
mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n",
(unsigned long long) dma_addr, (unsigned long long) virt);
return err;
}
int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count, u8 *status)
{
mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n",
page_count, (unsigned long long) virt);
return mthca_cmd(dev, virt, page_count, 0, CMD_UNMAP_ICM, CMD_TIME_CLASS_B, status);
}
int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
{
return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1, status);
}
int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B, status);
}
int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages,
u8 *status)
{
int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 0, CMD_SET_ICM_SIZE,
CMD_TIME_CLASS_A, status);
if (ret || status)
return ret;
/*
* Round up number of system pages needed in case
* MTHCA_ICM_PAGE_SIZE < PAGE_SIZE.
*/
*aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >>
(PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
return 0;
}
int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int mpt_index, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT,
CMD_TIME_CLASS_B, status);
}
int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int mpt_index, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
!mailbox, CMD_HW2SW_MPT,
CMD_TIME_CLASS_B, status);
}
int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int num_mtt, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
CMD_TIME_CLASS_B, status);
}
int mthca_SYNC_TPT(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B, status);
}
int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
int eq_num, u8 *status)
{
mthca_dbg(dev, "%s mask %016llx for eqn %d\n",
unmap ? "Clearing" : "Setting",
(unsigned long long) event_mask, eq_num);
return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num,
0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status);
}
int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int eq_num, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
CMD_TIME_CLASS_A, status);
}
int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int eq_num, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0,
CMD_HW2SW_EQ,
CMD_TIME_CLASS_A, status);
}
int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int cq_num, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ,
CMD_TIME_CLASS_A, status);
}
int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int cq_num, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0,
CMD_HW2SW_CQ,
CMD_TIME_CLASS_A, status);
}
int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size,
u8 *status)
{
struct mthca_mailbox *mailbox;
__be32 *inbox;
int err;
#define RESIZE_CQ_IN_SIZE 0x40
#define RESIZE_CQ_LOG_SIZE_OFFSET 0x0c
#define RESIZE_CQ_LKEY_OFFSET 0x1c
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
inbox = mailbox->buf;
memset(inbox, 0, RESIZE_CQ_IN_SIZE);
/*
* Leave start address fields zeroed out -- mthca assumes that
* MRs for CQs always start at virtual address 0.
*/
MTHCA_PUT(inbox, log_size, RESIZE_CQ_LOG_SIZE_OFFSET);
MTHCA_PUT(inbox, lkey, RESIZE_CQ_LKEY_OFFSET);
err = mthca_cmd(dev, mailbox->dma, cq_num, 1, CMD_RESIZE_CQ,
CMD_TIME_CLASS_B, status);
mthca_free_mailbox(dev, mailbox);
return err;
}
int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int srq_num, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ,
CMD_TIME_CLASS_A, status);
}
int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
int srq_num, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0,
CMD_HW2SW_SRQ,
CMD_TIME_CLASS_A, status);
}
int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num,
struct mthca_mailbox *mailbox, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, num, 0,
CMD_QUERY_SRQ, CMD_TIME_CLASS_A, status);
}
int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit, u8 *status)
{
return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ,
CMD_TIME_CLASS_B, status);
}
int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur,
enum ib_qp_state next, u32 num, int is_ee,
struct mthca_mailbox *mailbox, u32 optmask,
u8 *status)
{
static const u16 op[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
[IB_QPS_RESET] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_INIT] = CMD_RST2INIT_QPEE,
},
[IB_QPS_INIT] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_INIT] = CMD_INIT2INIT_QPEE,
[IB_QPS_RTR] = CMD_INIT2RTR_QPEE,
},
[IB_QPS_RTR] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_RTS] = CMD_RTR2RTS_QPEE,
},
[IB_QPS_RTS] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_RTS] = CMD_RTS2RTS_QPEE,
[IB_QPS_SQD] = CMD_RTS2SQD_QPEE,
},
[IB_QPS_SQD] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_RTS] = CMD_SQD2RTS_QPEE,
[IB_QPS_SQD] = CMD_SQD2SQD_QPEE,
},
[IB_QPS_SQE] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
[IB_QPS_RTS] = CMD_SQERR2RTS_QPEE,
},
[IB_QPS_ERR] = {
[IB_QPS_RESET] = CMD_ERR2RST_QPEE,
[IB_QPS_ERR] = CMD_2ERR_QPEE,
}
};
u8 op_mod = 0;
int my_mailbox = 0;
int err;
if (op[cur][next] == CMD_ERR2RST_QPEE) {
op_mod = 3; /* don't write outbox, any->reset */
/* For debugging */
if (!mailbox) {
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (!IS_ERR(mailbox)) {
my_mailbox = 1;
op_mod = 2; /* write outbox, any->reset */
} else
mailbox = NULL;
}
err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0,
(!!is_ee << 24) | num, op_mod,
op[cur][next], CMD_TIME_CLASS_C, status);
if (0 && mailbox) {
int i;
mthca_dbg(dev, "Dumping QP context:\n");
printk(" %08x\n", be32_to_cpup(mailbox->buf));
for (i = 0; i < 0x100 / 4; ++i) {
if (i % 8 == 0)
printk("[%02x] ", i * 4);
printk(" %08x",
be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
if ((i + 1) % 8 == 0)
printk("\n");
}
}
if (my_mailbox)
mthca_free_mailbox(dev, mailbox);
} else {
if (0) {
int i;
mthca_dbg(dev, "Dumping QP context:\n");
printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf));
for (i = 0; i < 0x100 / 4; ++i) {
if (i % 8 == 0)
printk(" [%02x] ", i * 4);
printk(" %08x",
be32_to_cpu(((__be32 *) mailbox->buf)[i + 2]));
if ((i + 1) % 8 == 0)
printk("\n");
}
}
err = mthca_cmd(dev, mailbox->dma, optmask | (!!is_ee << 24) | num,
op_mod, op[cur][next], CMD_TIME_CLASS_C, status);
}
return err;
}
int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee,
struct mthca_mailbox *mailbox, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0,
CMD_QUERY_QPEE, CMD_TIME_CLASS_A, status);
}
int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn,
u8 *status)
{
u8 op_mod;
switch (type) {
case IB_QPT_SMI:
op_mod = 0;
break;
case IB_QPT_GSI:
op_mod = 1;
break;
case IB_QPT_RAW_IPV6:
op_mod = 2;
break;
case IB_QPT_RAW_ETY:
op_mod = 3;
break;
default:
return -EINVAL;
}
return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP,
CMD_TIME_CLASS_B, status);
}
int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
void *in_mad, void *response_mad, u8 *status)
{
struct mthca_mailbox *inmailbox, *outmailbox;
void *inbox;
int err;
u32 in_modifier = port;
u8 op_modifier = 0;
#define MAD_IFC_BOX_SIZE 0x400
#define MAD_IFC_MY_QPN_OFFSET 0x100
#define MAD_IFC_RQPN_OFFSET 0x108
#define MAD_IFC_SL_OFFSET 0x10c
#define MAD_IFC_G_PATH_OFFSET 0x10d
#define MAD_IFC_RLID_OFFSET 0x10e
#define MAD_IFC_PKEY_OFFSET 0x112
#define MAD_IFC_GRH_OFFSET 0x140
inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(inmailbox))
return PTR_ERR(inmailbox);
inbox = inmailbox->buf;
outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
if (IS_ERR(outmailbox)) {
mthca_free_mailbox(dev, inmailbox);
return PTR_ERR(outmailbox);
}
memcpy(inbox, in_mad, 256);
/*
* Key check traps can't be generated unless we have in_wc to
* tell us where to send the trap.
*/
if (ignore_mkey || !in_wc)
op_modifier |= 0x1;
if (ignore_bkey || !in_wc)
op_modifier |= 0x2;
if (in_wc) {
u8 val;
memset(inbox + 256, 0, 256);
MTHCA_PUT(inbox, in_wc->qp->qp_num, MAD_IFC_MY_QPN_OFFSET);
MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET);
val = in_wc->sl << 4;
MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET);
val = in_wc->dlid_path_bits |
(in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0);
MTHCA_PUT(inbox, val, MAD_IFC_G_PATH_OFFSET);
MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET);
MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET);
if (in_grh)
memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40);
op_modifier |= 0x4;
in_modifier |= in_wc->slid << 16;
}
err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma,
in_modifier, op_modifier,
CMD_MAD_IFC, CMD_TIME_CLASS_C, status);
if (!err && !*status)
memcpy(response_mad, outmailbox->buf, 256);
mthca_free_mailbox(dev, inmailbox);
mthca_free_mailbox(dev, outmailbox);
return err;
}
int mthca_READ_MGM(struct mthca_dev *dev, int index,
struct mthca_mailbox *mailbox, u8 *status)
{
return mthca_cmd_box(dev, 0, mailbox->dma, index, 0,
CMD_READ_MGM, CMD_TIME_CLASS_A, status);
}
int mthca_WRITE_MGM(struct mthca_dev *dev, int index,
struct mthca_mailbox *mailbox, u8 *status)
{
return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM,
CMD_TIME_CLASS_A, status);
}
int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
u16 *hash, u8 *status)
{
u64 imm;
int err;
err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH,
CMD_TIME_CLASS_A, status);
*hash = imm;
return err;
}
int mthca_NOP(struct mthca_dev *dev, u8 *status)
{
return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100), status);
}
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