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linux/drivers/infiniband/hw/mthca/mthca_cmd.c
Roland Dreier 1db76c14d2 IB/mthca: Make fw_cmd_doorbell default to 0 
Setting fw_cmd_doorbell allows FW command to be queued using posted
writes instead of requiring polling on a "go" bit, so it should be a
performance boost.  However, the option causes problems with at least
some device/firmware combinations, so set the default to 0 until we
understand what's going on better.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-05-17 07:48:07 -07:00

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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/sched.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;
struct timer_list timer;
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 void event_timeout(unsigned long context_ptr)
{
struct mthca_cmd_context *context =
(struct mthca_cmd_context *) context_ptr;
context->result = -EBUSY;
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;
context->timer.expires = jiffies + timeout;
add_timer(&context->timer);
wait_for_completion(&context->done);
del_timer_sync(&context->timer);
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;
init_timer(&dev->cmd.context[i].timer);
dev->cmd.context[i].timer.data =
(unsigned long) &dev->cmd.context[i];
dev->cmd.context[i].timer.function = event_timeout;
}
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_dbg(dev, "FW version %012llx, max commands %d\n",
(unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
dev->cmd.max_cmds = 1 << lg;
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 0x104
#define MAD_IFC_SL_OFFSET 0x108
#define MAD_IFC_G_PATH_OFFSET 0x109
#define MAD_IFC_RLID_OFFSET 0x10a
#define MAD_IFC_PKEY_OFFSET 0x10e
#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_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_GRH_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 |= 0x10;
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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