/*
* IBM eServer eHCA Infiniband device driver for Linux on POWER
*
* module start stop, hca detection
*
* Authors: Heiko J Schick <schickhj@de.ibm.com>
* Hoang-Nam Nguyen <hnguyen@de.ibm.com>
* Joachim Fenkes <fenkes@de.ibm.com>
*
* Copyright (c) 2005 IBM Corporation
*
* All rights reserved.
*
* This source code is distributed under a dual license of GPL v2.0 and OpenIB
* BSD.
*
* OpenIB BSD License
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef CONFIG_PPC_64K_PAGES
#include <linux/slab.h>
#endif
#include <linux/notifier.h>
#include <linux/memory.h>
#include "ehca_classes.h"
#include "ehca_iverbs.h"
#include "ehca_mrmw.h"
#include "ehca_tools.h"
#include "hcp_if.h"
#define HCAD_VERSION "0029"
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>");
MODULE_DESCRIPTION("IBM eServer HCA InfiniBand Device Driver");
MODULE_VERSION(HCAD_VERSION);
static int ehca_open_aqp1 = 0;
static int ehca_hw_level = 0;
static int ehca_poll_all_eqs = 1;
int ehca_debug_level = 0;
int ehca_nr_ports = -1;
int ehca_use_hp_mr = 0;
int ehca_port_act_time = 30;
int ehca_static_rate = -1;
int ehca_scaling_code = 0;
int ehca_lock_hcalls = -1;
int ehca_max_cq = -1;
int ehca_max_qp = -1;
module_param_named(open_aqp1, ehca_open_aqp1, bool, S_IRUGO);
module_param_named(debug_level, ehca_debug_level, int, S_IRUGO);
module_param_named(hw_level, ehca_hw_level, int, S_IRUGO);
module_param_named(nr_ports, ehca_nr_ports, int, S_IRUGO);
module_param_named(use_hp_mr, ehca_use_hp_mr, bool, S_IRUGO);
module_param_named(port_act_time, ehca_port_act_time, int, S_IRUGO);
module_param_named(poll_all_eqs, ehca_poll_all_eqs, bool, S_IRUGO);
module_param_named(static_rate, ehca_static_rate, int, S_IRUGO);
module_param_named(scaling_code, ehca_scaling_code, bool, S_IRUGO);
module_param_named(lock_hcalls, ehca_lock_hcalls, bool, S_IRUGO);
module_param_named(number_of_cqs, ehca_max_cq, int, S_IRUGO);
module_param_named(number_of_qps, ehca_max_qp, int, S_IRUGO);
MODULE_PARM_DESC(open_aqp1,
"Open AQP1 on startup (default: no)");
MODULE_PARM_DESC(debug_level,
"Amount of debug output (0: none (default), 1: traces, "
"2: some dumps, 3: lots)");
MODULE_PARM_DESC(hw_level,
"Hardware level (0: autosensing (default), "
"0x10..0x14: eHCA, 0x20..0x23: eHCA2)");
MODULE_PARM_DESC(nr_ports,
"number of connected ports (-1: autodetect (default), "
"1: port one only, 2: two ports)");
MODULE_PARM_DESC(use_hp_mr,
"Use high performance MRs (default: no)");
MODULE_PARM_DESC(port_act_time,
"Time to wait for port activation (default: 30 sec)");
MODULE_PARM_DESC(poll_all_eqs,
"Poll all event queues periodically (default: yes)");
MODULE_PARM_DESC(static_rate,
"Set permanent static rate (default: no static rate)");
MODULE_PARM_DESC(scaling_code,
"Enable scaling code (default: no)");
MODULE_PARM_DESC(lock_hcalls,
"Serialize all hCalls made by the driver "
"(default: autodetect)");
MODULE_PARM_DESC(number_of_cqs,
"Max number of CQs which can be allocated "
"(default: autodetect)");
MODULE_PARM_DESC(number_of_qps,
"Max number of QPs which can be allocated "
"(default: autodetect)");
DEFINE_RWLOCK(ehca_qp_idr_lock);
DEFINE_RWLOCK(ehca_cq_idr_lock);
DEFINE_IDR(ehca_qp_idr);
DEFINE_IDR(ehca_cq_idr);
static LIST_HEAD(shca_list); /* list of all registered ehcas */
DEFINE_SPINLOCK(shca_list_lock);
static struct timer_list poll_eqs_timer;
#ifdef CONFIG_PPC_64K_PAGES
static struct kmem_cache *ctblk_cache;
void *ehca_alloc_fw_ctrlblock(gfp_t flags)
{
void *ret = kmem_cache_zalloc(ctblk_cache, flags);
if (!ret)
ehca_gen_err("Out of memory for ctblk");
return ret;
}
void ehca_free_fw_ctrlblock(void *ptr)
{
if (ptr)
kmem_cache_free(ctblk_cache, ptr);
}
#endif
int ehca2ib_return_code(u64 ehca_rc)
{
switch (ehca_rc) {
case H_SUCCESS:
return