152 строки
4.2 KiB
C
152 строки
4.2 KiB
C
/*
|
|
* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2007, 2008 Mellanox Technologies. 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.
|
|
*/
|
|
|
|
#include <linux/workqueue.h>
|
|
|
|
#include "mlx4.h"
|
|
|
|
enum {
|
|
MLX4_CATAS_POLL_INTERVAL = 5 * HZ,
|
|
};
|
|
|
|
static DEFINE_SPINLOCK(catas_lock);
|
|
|
|
static LIST_HEAD(catas_list);
|
|
static struct work_struct catas_work;
|
|
|
|
static int internal_err_reset = 1;
|
|
module_param(internal_err_reset, int, 0644);
|
|
MODULE_PARM_DESC(internal_err_reset,
|
|
"Reset device on internal errors if non-zero (default 1)");
|
|
|
|
static void dump_err_buf(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
int i;
|
|
|
|
mlx4_err(dev, "Internal error detected:\n");
|
|
for (i = 0; i < priv->fw.catas_size; ++i)
|
|
mlx4_err(dev, " buf[%02x]: %08x\n",
|
|
i, swab32(readl(priv->catas_err.map + i)));
|
|
}
|
|
|
|
static void poll_catas(unsigned long dev_ptr)
|
|
{
|
|
struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr;
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
if (readl(priv->catas_err.map)) {
|
|
dump_err_buf(dev);
|
|
|
|
mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
|
|
|
|
if (internal_err_reset) {
|
|
spin_lock(&catas_lock);
|
|
list_add(&priv->catas_err.list, &catas_list);
|
|
spin_unlock(&catas_lock);
|
|
|
|
queue_work(mlx4_wq, &catas_work);
|
|
}
|
|
} else
|
|
mod_timer(&priv->catas_err.timer,
|
|
round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
|
|
}
|
|
|
|
static void catas_reset(struct work_struct *work)
|
|
{
|
|
struct mlx4_priv *priv, *tmppriv;
|
|
struct mlx4_dev *dev;
|
|
|
|
LIST_HEAD(tlist);
|
|
int ret;
|
|
|
|
spin_lock_irq(&catas_lock);
|
|
list_splice_init(&catas_list, &tlist);
|
|
spin_unlock_irq(&catas_lock);
|
|
|
|
list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) {
|
|
ret = mlx4_restart_one(priv->dev.pdev);
|
|
dev = &priv->dev;
|
|
if (ret)
|
|
mlx4_err(dev, "Reset failed (%d)\n", ret);
|
|
else
|
|
mlx4_dbg(dev, "Reset succeeded\n");
|
|
}
|
|
}
|
|
|
|
void mlx4_start_catas_poll(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
unsigned long addr;
|
|
|
|
INIT_LIST_HEAD(&priv->catas_err.list);
|
|
init_timer(&priv->catas_err.timer);
|
|
priv->catas_err.map = NULL;
|
|
|
|
addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) +
|
|
priv->fw.catas_offset;
|
|
|
|
priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4);
|
|
if (!priv->catas_err.map) {
|
|
mlx4_warn(dev, "Failed to map internal error buffer at 0x%lx\n",
|
|
addr);
|
|
return;
|
|
}
|
|
|
|
priv->catas_err.timer.data = (unsigned long) dev;
|
|
priv->catas_err.timer.function = poll_catas;
|
|
priv->catas_err.timer.expires =
|
|
round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL);
|
|
add_timer(&priv->catas_err.timer);
|
|
}
|
|
|
|
void mlx4_stop_catas_poll(struct mlx4_dev *dev)
|
|
{
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
del_timer_sync(&priv->catas_err.timer);
|
|
|
|
if (priv->catas_err.map)
|
|
iounmap(priv->catas_err.map);
|
|
|
|
spin_lock_irq(&catas_lock);
|
|
list_del(&priv->catas_err.list);
|
|
spin_unlock_irq(&catas_lock);
|
|
}
|
|
|
|
void __init mlx4_catas_init(void)
|
|
{
|
|
INIT_WORK(&catas_work, catas_reset);
|
|
}
|