/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2005 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/module.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/gfp.h>
#include "mthca_dev.h"
#include "mthca_config_reg.h"
#include "mthca_cmd.h"
#include "mthca_profile.h"
#include "mthca_memfree.h"
#include "mthca_wqe.h"
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
MODULE_LICENSE("Dual BSD/GPL");
#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
int mthca_debug_level = 0;
module_param_named(debug_level, mthca_debug_level, int, 0644);
MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
#ifdef CONFIG_PCI_MSI
static int msi_x = 1;
module_param(msi_x, int, 0444);
MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
#else /* CONFIG_PCI_MSI */
#define msi_x (0)
#endif /* CONFIG_PCI_MSI */
static int tune_pci = 0;
module_param(tune_pci, int, 0444);
MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
DEFINE_MUTEX(mthca_device_mutex);
#define MTHCA_DEFAULT_NUM_QP (1 << 16)
#define MTHCA_DEFAULT_RDB_PER_QP (1 << 2)
#define MTHCA_DEFAULT_NUM_CQ (1 << 16)
#define MTHCA_DEFAULT_NUM_MCG (1 << 13)
#define MTHCA_DEFAULT_NUM_MPT (1 << 17)
#define MTHCA_DEFAULT_NUM_MTT (1 << 20)
#define MTHCA_DEFAULT_NUM_UDAV (1 << 15)
#define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
#define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18)
static struct mthca_profile hca_profile = {
.num_qp = MTHCA_DEFAULT_NUM_QP,
.rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP,
.num_cq = MTHCA_DEFAULT_NUM_CQ,
.num_mcg = MTHCA_DEFAULT_NUM_MCG,
.num_mpt = MTHCA_DEFAULT_NUM_MPT,
.num_mtt = MTHCA_DEFAULT_NUM_MTT,
.num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */
.fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
.uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */
};
module_param_named(num_qp, hca_profile.num_qp, int, 0444);
MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
module_param_named(num_cq, hca_profile.num_cq, int, 0444);
MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
MO