c9f432b7ba
Update the OFED Infiniband core to the version supplied in Linux version 3.7. The update to OFED is nearly all additional defines and functions with the exception of the addition of additional parameters to ib_register_device() and the reg_user_mr callback. In addition the ibcore (Infiniband core) and ipoib (IP over Infiniband) have both been made into completely loadable modules to facilitate testing of the OFED stack in FreeBSD. Finally the Mellanox Infiniband drivers are now updated to the latest version shipping with Linux 3.7. Submitted by: Mellanox FreeBSD driver team: Oded Shanoon (odeds mellanox.com), Meny Yossefi (menyy mellanox.com), Orit Moskovich (oritm mellanox.com) Approved by: re
171 lines
4.8 KiB
C
171 lines
4.8 KiB
C
/*
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* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/workqueue.h>
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#include <linux/module.h>
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#include "mlx4.h"
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#define MLX4_CATAS_POLL_INTERVAL (5 * HZ)
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static DEFINE_SPINLOCK(catas_lock);
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static LIST_HEAD(catas_list);
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static struct work_struct catas_work;
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static int internal_err_reset = 1;
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module_param(internal_err_reset, int, 0644);
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MODULE_PARM_DESC(internal_err_reset,
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"Reset device on internal errors if non-zero"
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" (default 1, in SRIOV mode default is 0)");
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static void dump_err_buf(struct mlx4_dev *dev)
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{
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struct mlx4_priv *priv = mlx4_priv(dev);
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int i;
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mlx4_err(dev, "Internal error detected:\n");
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for (i = 0; i < priv->fw.catas_size; ++i)
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mlx4_err(dev, " buf[%02x]: %08x\n",
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i, swab32(readl(priv->catas_err.map + i)));
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}
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static void poll_catas(unsigned long dev_ptr)
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{
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struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr;
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struct mlx4_priv *priv = mlx4_priv(dev);
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if (readl(priv->catas_err.map)) {
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/* If the device is off-line, we cannot try to recover it */
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if (pci_channel_offline(dev->pdev))
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mod_timer(&priv->catas_err.timer,
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round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
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else {
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dump_err_buf(dev);
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mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
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if (internal_err_reset) {
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spin_lock(&catas_lock);
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list_add(&priv->catas_err.list, &catas_list);
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spin_unlock(&catas_lock);
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queue_work(mlx4_wq, &catas_work);
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}
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}
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} else
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mod_timer(&priv->catas_err.timer,
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round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
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}
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static void catas_reset(struct work_struct *work)
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{
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struct mlx4_priv *priv, *tmppriv;
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struct mlx4_dev *dev;
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LIST_HEAD(tlist);
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int ret;
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spin_lock_irq(&catas_lock);
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list_splice_init(&catas_list, &tlist);
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spin_unlock_irq(&catas_lock);
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list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) {
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struct pci_dev *pdev = priv->dev.pdev;
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/* If the device is off-line, we cannot reset it */
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if (pci_channel_offline(pdev))
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continue;
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ret = mlx4_restart_one(priv->dev.pdev);
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/* 'priv' now is not valid */
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if (ret)
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pr_err("mlx4 %s: Reset failed (%d)\n",
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pci_name(pdev), ret);
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else {
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dev = pci_get_drvdata(pdev);
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mlx4_dbg(dev, "Reset succeeded\n");
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}
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}
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}
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void mlx4_start_catas_poll(struct mlx4_dev *dev)
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{
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struct mlx4_priv *priv = mlx4_priv(dev);
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phys_addr_t addr;
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/*If we are in SRIOV the default of the module param must be 0*/
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if (mlx4_is_mfunc(dev))
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internal_err_reset = 0;
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INIT_LIST_HEAD(&priv->catas_err.list);
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init_timer(&priv->catas_err.timer);
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priv->catas_err.map = NULL;
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addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) +
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priv->fw.catas_offset;
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priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4);
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if (!priv->catas_err.map) {
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mlx4_warn(dev, "Failed to map internal error buffer at 0x%llx\n",
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(unsigned long long) addr);
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return;
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}
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priv->catas_err.timer.data = (unsigned long) dev;
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priv->catas_err.timer.function = poll_catas;
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priv->catas_err.timer.expires =
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round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL);
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add_timer(&priv->catas_err.timer);
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}
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void mlx4_stop_catas_poll(struct mlx4_dev *dev)
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{
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struct mlx4_priv *priv = mlx4_priv(dev);
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del_timer_sync(&priv->catas_err.timer);
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if (priv->catas_err.map)
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iounmap(priv->catas_err.map);
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spin_lock_irq(&catas_lock);
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list_del(&priv->catas_err.list);
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spin_unlock_irq(&catas_lock);
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}
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void __init mlx4_catas_init(void)
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{
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INIT_WORK(&catas_work, catas_reset);
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}
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