2005-04-16 16:20:36 -06:00
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/*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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2005-08-11 00:03:10 -06:00
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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2005-04-16 16:20:36 -06:00
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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/module.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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2007-02-06 09:07:25 -07:00
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#include <linux/kernel.h>
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2005-04-16 16:20:36 -06:00
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#include <linux/slab.h>
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#include <linux/init.h>
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2006-01-13 15:51:39 -07:00
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#include <linux/mutex.h>
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Detach sched.h from mm.h
First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.
This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
getting them indirectly
Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
they don't need sched.h
b) sched.h stops being dependency for significant number of files:
on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
after patch it's only 3744 (-8.3%).
Cross-compile tested on
all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
alpha alpha-up
arm
i386 i386-up i386-defconfig i386-allnoconfig
ia64 ia64-up
m68k
mips
parisc parisc-up
powerpc powerpc-up
s390 s390-up
sparc sparc-up
sparc64 sparc64-up
um-x86_64
x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig
as well as my two usual configs.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-20 15:22:52 -06:00
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#include <linux/workqueue.h>
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2005-04-16 16:20:36 -06:00
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#include "core_priv.h"
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MODULE_AUTHOR("Roland Dreier");
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MODULE_DESCRIPTION("core kernel InfiniBand API");
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MODULE_LICENSE("Dual BSD/GPL");
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struct ib_client_data {
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struct list_head list;
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struct ib_client *client;
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void * data;
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};
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static LIST_HEAD(device_list);
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static LIST_HEAD(client_list);
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/*
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2006-01-13 15:51:39 -07:00
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* device_mutex protects access to both device_list and client_list.
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2005-04-16 16:20:36 -06:00
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* There's no real point to using multiple locks or something fancier
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* like an rwsem: we always access both lists, and we're always
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* modifying one list or the other list. In any case this is not a
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* hot path so there's no point in trying to optimize.
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*/
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2006-01-13 15:51:39 -07:00
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static DEFINE_MUTEX(device_mutex);
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2005-04-16 16:20:36 -06:00
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static int ib_device_check_mandatory(struct ib_device *device)
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{
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#define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x }
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static const struct {
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size_t offset;
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char *name;
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} mandatory_table[] = {
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IB_MANDATORY_FUNC(query_device),
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IB_MANDATORY_FUNC(query_port),
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IB_MANDATORY_FUNC(query_pkey),
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IB_MANDATORY_FUNC(query_gid),
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IB_MANDATORY_FUNC(alloc_pd),
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IB_MANDATORY_FUNC(dealloc_pd),
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IB_MANDATORY_FUNC(create_ah),
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IB_MANDATORY_FUNC(destroy_ah),
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IB_MANDATORY_FUNC(create_qp),
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IB_MANDATORY_FUNC(modify_qp),
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IB_MANDATORY_FUNC(destroy_qp),
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IB_MANDATORY_FUNC(post_send),
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IB_MANDATORY_FUNC(post_recv),
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IB_MANDATORY_FUNC(create_cq),
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IB_MANDATORY_FUNC(destroy_cq),
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IB_MANDATORY_FUNC(poll_cq),
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IB_MANDATORY_FUNC(req_notify_cq),
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IB_MANDATORY_FUNC(get_dma_mr),
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IB_MANDATORY_FUNC(dereg_mr)
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};
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int i;
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2007-02-06 09:07:25 -07:00
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for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) {
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2005-04-16 16:20:36 -06:00
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if (!*(void **) ((void *) device + mandatory_table[i].offset)) {
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printk(KERN_WARNING "Device %s is missing mandatory function %s\n",
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device->name, mandatory_table[i].name);
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return -EINVAL;
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}
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}
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return 0;
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}
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static struct ib_device *__ib_device_get_by_name(const char *name)
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{
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struct ib_device *device;
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list_for_each_entry(device, &device_list, core_list)
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if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX))
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return device;
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return NULL;
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}
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static int alloc_name(char *name)
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{
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2007-10-09 20:59:04 -06:00
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unsigned long *inuse;
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2005-04-16 16:20:36 -06:00
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char buf[IB_DEVICE_NAME_MAX];
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struct ib_device *device;
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int i;
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2007-10-09 20:59:04 -06:00
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inuse = (unsigned long *) get_zeroed_page(GFP_KERNEL);
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2005-04-16 16:20:36 -06:00
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if (!inuse)
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return -ENOMEM;
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list_for_each_entry(device, &device_list, core_list) {
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if (!sscanf(device->name, name, &i))
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continue;
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if (i < 0 || i >= PAGE_SIZE * 8)
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continue;
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snprintf(buf, sizeof buf, name, i);
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if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX))
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set_bit(i, inuse);
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}
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i = find_first_zero_bit(inuse, PAGE_SIZE * 8);
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free_page((unsigned long) inuse);
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snprintf(buf, sizeof buf, name, i);
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if (__ib_device_get_by_name(buf))
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return -ENFILE;
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strlcpy(name, buf, IB_DEVICE_NAME_MAX);
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return 0;
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}
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2007-05-13 22:26:51 -06:00
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static int start_port(struct ib_device *device)
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{
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return (device->node_type == RDMA_NODE_IB_SWITCH) ? 0 : 1;
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}
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static int end_port(struct ib_device *device)
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{
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return (device->node_type == RDMA_NODE_IB_SWITCH) ?
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0 : device->phys_port_cnt;
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}
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2005-04-16 16:20:36 -06:00
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/**
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* ib_alloc_device - allocate an IB device struct
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* @size:size of structure to allocate
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*
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* Low-level drivers should use ib_alloc_device() to allocate &struct
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* ib_device. @size is the size of the structure to be allocated,
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* including any private data used by the low-level driver.
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* ib_dealloc_device() must be used to free structures allocated with
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* ib_alloc_device().
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*/
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struct ib_device *ib_alloc_device(size_t size)
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{
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BUG_ON(size < sizeof (struct ib_device));
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2005-11-02 08:23:14 -07:00
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return kzalloc(size, GFP_KERNEL);
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2005-04-16 16:20:36 -06:00
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}
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EXPORT_SYMBOL(ib_alloc_device);
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/**
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* ib_dealloc_device - free an IB device struct
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* @device:structure to free
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*
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* Free a structure allocated with ib_alloc_device().
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*/
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void ib_dealloc_device(struct ib_device *device)
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{
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if (device->reg_state == IB_DEV_UNINITIALIZED) {
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kfree(device);
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return;
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}
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BUG_ON(device->reg_state != IB_DEV_UNREGISTERED);
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2009-02-25 14:27:46 -07:00
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kobject_put(&device->dev.kobj);
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2005-04-16 16:20:36 -06:00
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}
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EXPORT_SYMBOL(ib_dealloc_device);
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static int add_client_context(struct ib_device *device, struct ib_client *client)
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{
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struct ib_client_data *context;
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unsigned long flags;
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context = kmalloc(sizeof *context, GFP_KERNEL);
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if (!context) {
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printk(KERN_WARNING "Couldn't allocate client context for %s/%s\n",
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device->name, client->name);
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return -ENOMEM;
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}
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context->client = client;
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context->data = NULL;
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spin_lock_irqsave(&device->client_data_lock, flags);
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list_add(&context->list, &device->client_data_list);
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spin_unlock_irqrestore(&device->client_data_lock, flags);
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return 0;
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}
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2007-05-13 22:26:51 -06:00
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static int read_port_table_lengths(struct ib_device *device)
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{
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struct ib_port_attr *tprops = NULL;
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int num_ports, ret = -ENOMEM;
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u8 port_index;
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tprops = kmalloc(sizeof *tprops, GFP_KERNEL);
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if (!tprops)
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goto out;
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num_ports = end_port(device) - start_port(device) + 1;
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device->pkey_tbl_len = kmalloc(sizeof *device->pkey_tbl_len * num_ports,
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GFP_KERNEL);
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device->gid_tbl_len = kmalloc(sizeof *device->gid_tbl_len * num_ports,
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GFP_KERNEL);
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if (!device->pkey_tbl_len || !device->gid_tbl_len)
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goto err;
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for (port_index = 0; port_index < num_ports; ++port_index) {
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ret = ib_query_port(device, port_index + start_port(device),
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tprops);
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if (ret)
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goto err;
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device->pkey_tbl_len[port_index] = tprops->pkey_tbl_len;
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device->gid_tbl_len[port_index] = tprops->gid_tbl_len;
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}
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ret = 0;
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goto out;
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err:
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kfree(device->gid_tbl_len);
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kfree(device->pkey_tbl_len);
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out:
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kfree(tprops);
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return ret;
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}
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2005-04-16 16:20:36 -06:00
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/**
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* ib_register_device - Register an IB device with IB core
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* @device:Device to register
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*
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* Low-level drivers use ib_register_device() to register their
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* devices with the IB core. All registered clients will receive a
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* callback for each device that is added. @device must be allocated
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* with ib_alloc_device().
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*/
|
2010-05-06 18:03:25 -06:00
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int ib_register_device(struct ib_device *device,
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int (*port_callback)(struct ib_device *,
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u8, struct kobject *))
|
2005-04-16 16:20:36 -06:00
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{
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int ret;
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|
2006-01-13 15:51:39 -07:00
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mutex_lock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
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if (strchr(device->name, '%')) {
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ret = alloc_name(device->name);
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if (ret)
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goto out;
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}
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if (ib_device_check_mandatory(device)) {
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ret = -EINVAL;
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goto out;
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}
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INIT_LIST_HEAD(&device->event_handler_list);
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INIT_LIST_HEAD(&device->client_data_list);
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spin_lock_init(&device->event_handler_lock);
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spin_lock_init(&device->client_data_lock);
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|
2007-05-13 22:26:51 -06:00
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ret = read_port_table_lengths(device);
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if (ret) {
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printk(KERN_WARNING "Couldn't create table lengths cache for device %s\n",
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device->name);
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goto out;
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}
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|
2010-05-06 18:03:25 -06:00
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ret = ib_device_register_sysfs(device, port_callback);
|
2005-04-16 16:20:36 -06:00
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if (ret) {
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printk(KERN_WARNING "Couldn't register device %s with driver model\n",
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device->name);
|
2007-05-13 22:26:51 -06:00
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kfree(device->gid_tbl_len);
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kfree(device->pkey_tbl_len);
|
2005-04-16 16:20:36 -06:00
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goto out;
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}
|
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list_add_tail(&device->core_list, &device_list);
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device->reg_state = IB_DEV_REGISTERED;
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{
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struct ib_client *client;
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list_for_each_entry(client, &client_list, list)
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if (client->add && !add_client_context(device, client))
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client->add(device);
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}
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out:
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_unlock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
return ret;
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|
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}
|
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|
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EXPORT_SYMBOL(ib_register_device);
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|
|
/**
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* ib_unregister_device - Unregister an IB device
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* @device:Device to unregister
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|
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*
|
|
|
|
* Unregister an IB device. All clients will receive a remove callback.
|
|
|
|
*/
|
|
|
|
void ib_unregister_device(struct ib_device *device)
|
|
|
|
{
|
|
|
|
struct ib_client *client;
|
|
|
|
struct ib_client_data *context, *tmp;
|
|
|
|
unsigned long flags;
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_lock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
list_for_each_entry_reverse(client, &client_list, list)
|
|
|
|
if (client->remove)
|
|
|
|
client->remove(device);
|
|
|
|
|
|
|
|
list_del(&device->core_list);
|
|
|
|
|
2007-05-13 22:26:51 -06:00
|
|
|
kfree(device->gid_tbl_len);
|
|
|
|
kfree(device->pkey_tbl_len);
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_unlock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2009-02-25 14:27:46 -07:00
|
|
|
ib_device_unregister_sysfs(device);
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
spin_lock_irqsave(&device->client_data_lock, flags);
|
|
|
|
list_for_each_entry_safe(context, tmp, &device->client_data_list, list)
|
|
|
|
kfree(context);
|
|
|
|
spin_unlock_irqrestore(&device->client_data_lock, flags);
|
|
|
|
|
|
|
|
device->reg_state = IB_DEV_UNREGISTERED;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_unregister_device);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_register_client - Register an IB client
|
|
|
|
* @client:Client to register
|
|
|
|
*
|
|
|
|
* Upper level users of the IB drivers can use ib_register_client() to
|
|
|
|
* register callbacks for IB device addition and removal. When an IB
|
|
|
|
* device is added, each registered client's add method will be called
|
|
|
|
* (in the order the clients were registered), and when a device is
|
|
|
|
* removed, each client's remove method will be called (in the reverse
|
|
|
|
* order that clients were registered). In addition, when
|
|
|
|
* ib_register_client() is called, the client will receive an add
|
|
|
|
* callback for all devices already registered.
|
|
|
|
*/
|
|
|
|
int ib_register_client(struct ib_client *client)
|
|
|
|
{
|
|
|
|
struct ib_device *device;
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_lock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
list_add_tail(&client->list, &client_list);
|
|
|
|
list_for_each_entry(device, &device_list, core_list)
|
|
|
|
if (client->add && !add_client_context(device, client))
|
|
|
|
client->add(device);
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_unlock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_register_client);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_unregister_client - Unregister an IB client
|
|
|
|
* @client:Client to unregister
|
|
|
|
*
|
|
|
|
* Upper level users use ib_unregister_client() to remove their client
|
|
|
|
* registration. When ib_unregister_client() is called, the client
|
|
|
|
* will receive a remove callback for each IB device still registered.
|
|
|
|
*/
|
|
|
|
void ib_unregister_client(struct ib_client *client)
|
|
|
|
{
|
|
|
|
struct ib_client_data *context, *tmp;
|
|
|
|
struct ib_device *device;
|
|
|
|
unsigned long flags;
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_lock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
list_for_each_entry(device, &device_list, core_list) {
|
|
|
|
if (client->remove)
|
|
|
|
client->remove(device);
|
|
|
|
|
|
|
|
spin_lock_irqsave(&device->client_data_lock, flags);
|
|
|
|
list_for_each_entry_safe(context, tmp, &device->client_data_list, list)
|
|
|
|
if (context->client == client) {
|
|
|
|
list_del(&context->list);
|
|
|
|
kfree(context);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&device->client_data_lock, flags);
|
|
|
|
}
|
|
|
|
list_del(&client->list);
|
|
|
|
|
2006-01-13 15:51:39 -07:00
|
|
|
mutex_unlock(&device_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_unregister_client);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_get_client_data - Get IB client context
|
|
|
|
* @device:Device to get context for
|
|
|
|
* @client:Client to get context for
|
|
|
|
*
|
|
|
|
* ib_get_client_data() returns client context set with
|
|
|
|
* ib_set_client_data().
|
|
|
|
*/
|
|
|
|
void *ib_get_client_data(struct ib_device *device, struct ib_client *client)
|
|
|
|
{
|
|
|
|
struct ib_client_data *context;
|
|
|
|
void *ret = NULL;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&device->client_data_lock, flags);
|
|
|
|
list_for_each_entry(context, &device->client_data_list, list)
|
|
|
|
if (context->client == client) {
|
|
|
|
ret = context->data;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&device->client_data_lock, flags);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_get_client_data);
|
|
|
|
|
|
|
|
/**
|
2006-09-22 16:22:58 -06:00
|
|
|
* ib_set_client_data - Set IB client context
|
2005-04-16 16:20:36 -06:00
|
|
|
* @device:Device to set context for
|
|
|
|
* @client:Client to set context for
|
|
|
|
* @data:Context to set
|
|
|
|
*
|
|
|
|
* ib_set_client_data() sets client context that can be retrieved with
|
|
|
|
* ib_get_client_data().
|
|
|
|
*/
|
|
|
|
void ib_set_client_data(struct ib_device *device, struct ib_client *client,
|
|
|
|
void *data)
|
|
|
|
{
|
|
|
|
struct ib_client_data *context;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&device->client_data_lock, flags);
|
|
|
|
list_for_each_entry(context, &device->client_data_list, list)
|
|
|
|
if (context->client == client) {
|
|
|
|
context->data = data;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
printk(KERN_WARNING "No client context found for %s/%s\n",
|
|
|
|
device->name, client->name);
|
|
|
|
|
|
|
|
out:
|
|
|
|
spin_unlock_irqrestore(&device->client_data_lock, flags);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_set_client_data);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_register_event_handler - Register an IB event handler
|
|
|
|
* @event_handler:Handler to register
|
|
|
|
*
|
|
|
|
* ib_register_event_handler() registers an event handler that will be
|
|
|
|
* called back when asynchronous IB events occur (as defined in
|
|
|
|
* chapter 11 of the InfiniBand Architecture Specification). This
|
|
|
|
* callback may occur in interrupt context.
|
|
|
|
*/
|
|
|
|
int ib_register_event_handler (struct ib_event_handler *event_handler)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&event_handler->device->event_handler_lock, flags);
|
|
|
|
list_add_tail(&event_handler->list,
|
|
|
|
&event_handler->device->event_handler_list);
|
|
|
|
spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_register_event_handler);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_unregister_event_handler - Unregister an event handler
|
|
|
|
* @event_handler:Handler to unregister
|
|
|
|
*
|
|
|
|
* Unregister an event handler registered with
|
|
|
|
* ib_register_event_handler().
|
|
|
|
*/
|
|
|
|
int ib_unregister_event_handler(struct ib_event_handler *event_handler)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&event_handler->device->event_handler_lock, flags);
|
|
|
|
list_del(&event_handler->list);
|
|
|
|
spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_unregister_event_handler);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_dispatch_event - Dispatch an asynchronous event
|
|
|
|
* @event:Event to dispatch
|
|
|
|
*
|
|
|
|
* Low-level drivers must call ib_dispatch_event() to dispatch the
|
|
|
|
* event to all registered event handlers when an asynchronous event
|
|
|
|
* occurs.
|
|
|
|
*/
|
|
|
|
void ib_dispatch_event(struct ib_event *event)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
struct ib_event_handler *handler;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&event->device->event_handler_lock, flags);
|
|
|
|
|
|
|
|
list_for_each_entry(handler, &event->device->event_handler_list, list)
|
|
|
|
handler->handler(handler, event);
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&event->device->event_handler_lock, flags);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_dispatch_event);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_query_device - Query IB device attributes
|
|
|
|
* @device:Device to query
|
|
|
|
* @device_attr:Device attributes
|
|
|
|
*
|
|
|
|
* ib_query_device() returns the attributes of a device through the
|
|
|
|
* @device_attr pointer.
|
|
|
|
*/
|
|
|
|
int ib_query_device(struct ib_device *device,
|
|
|
|
struct ib_device_attr *device_attr)
|
|
|
|
{
|
|
|
|
return device->query_device(device, device_attr);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_query_device);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_query_port - Query IB port attributes
|
|
|
|
* @device:Device to query
|
|
|
|
* @port_num:Port number to query
|
|
|
|
* @port_attr:Port attributes
|
|
|
|
*
|
|
|
|
* ib_query_port() returns the attributes of a port through the
|
|
|
|
* @port_attr pointer.
|
|
|
|
*/
|
|
|
|
int ib_query_port(struct ib_device *device,
|
|
|
|
u8 port_num,
|
|
|
|
struct ib_port_attr *port_attr)
|
|
|
|
{
|
2007-05-19 09:51:54 -06:00
|
|
|
if (port_num < start_port(device) || port_num > end_port(device))
|
2005-10-03 10:32:33 -06:00
|
|
|
return -EINVAL;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
return device->query_port(device, port_num, port_attr);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_query_port);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_query_gid - Get GID table entry
|
|
|
|
* @device:Device to query
|
|
|
|
* @port_num:Port number to query
|
|
|
|
* @index:GID table index to query
|
|
|
|
* @gid:Returned GID
|
|
|
|
*
|
|
|
|
* ib_query_gid() fetches the specified GID table entry.
|
|
|
|
*/
|
|
|
|
int ib_query_gid(struct ib_device *device,
|
|
|
|
u8 port_num, int index, union ib_gid *gid)
|
|
|
|
{
|
|
|
|
return device->query_gid(device, port_num, index, gid);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_query_gid);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_query_pkey - Get P_Key table entry
|
|
|
|
* @device:Device to query
|
|
|
|
* @port_num:Port number to query
|
|
|
|
* @index:P_Key table index to query
|
|
|
|
* @pkey:Returned P_Key
|
|
|
|
*
|
|
|
|
* ib_query_pkey() fetches the specified P_Key table entry.
|
|
|
|
*/
|
|
|
|
int ib_query_pkey(struct ib_device *device,
|
|
|
|
u8 port_num, u16 index, u16 *pkey)
|
|
|
|
{
|
|
|
|
return device->query_pkey(device, port_num, index, pkey);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_query_pkey);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_modify_device - Change IB device attributes
|
|
|
|
* @device:Device to modify
|
|
|
|
* @device_modify_mask:Mask of attributes to change
|
|
|
|
* @device_modify:New attribute values
|
|
|
|
*
|
|
|
|
* ib_modify_device() changes a device's attributes as specified by
|
|
|
|
* the @device_modify_mask and @device_modify structure.
|
|
|
|
*/
|
|
|
|
int ib_modify_device(struct ib_device *device,
|
|
|
|
int device_modify_mask,
|
|
|
|
struct ib_device_modify *device_modify)
|
|
|
|
{
|
|
|
|
return device->modify_device(device, device_modify_mask,
|
|
|
|
device_modify);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_modify_device);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_modify_port - Modifies the attributes for the specified port.
|
|
|
|
* @device: The device to modify.
|
|
|
|
* @port_num: The number of the port to modify.
|
|
|
|
* @port_modify_mask: Mask used to specify which attributes of the port
|
|
|
|
* to change.
|
|
|
|
* @port_modify: New attribute values for the port.
|
|
|
|
*
|
|
|
|
* ib_modify_port() changes a port's attributes as specified by the
|
|
|
|
* @port_modify_mask and @port_modify structure.
|
|
|
|
*/
|
|
|
|
int ib_modify_port(struct ib_device *device,
|
|
|
|
u8 port_num, int port_modify_mask,
|
|
|
|
struct ib_port_modify *port_modify)
|
|
|
|
{
|
2007-05-19 09:51:54 -06:00
|
|
|
if (port_num < start_port(device) || port_num > end_port(device))
|
2005-10-03 10:32:33 -06:00
|
|
|
return -EINVAL;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
return device->modify_port(device, port_num, port_modify_mask,
|
|
|
|
port_modify);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_modify_port);
|
|
|
|
|
2007-05-13 22:26:51 -06:00
|
|
|
/**
|
|
|
|
* ib_find_gid - Returns the port number and GID table index where
|
|
|
|
* a specified GID value occurs.
|
|
|
|
* @device: The device to query.
|
|
|
|
* @gid: The GID value to search for.
|
|
|
|
* @port_num: The port number of the device where the GID value was found.
|
|
|
|
* @index: The index into the GID table where the GID was found. This
|
|
|
|
* parameter may be NULL.
|
|
|
|
*/
|
|
|
|
int ib_find_gid(struct ib_device *device, union ib_gid *gid,
|
|
|
|
u8 *port_num, u16 *index)
|
|
|
|
{
|
|
|
|
union ib_gid tmp_gid;
|
|
|
|
int ret, port, i;
|
|
|
|
|
|
|
|
for (port = start_port(device); port <= end_port(device); ++port) {
|
|
|
|
for (i = 0; i < device->gid_tbl_len[port - start_port(device)]; ++i) {
|
|
|
|
ret = ib_query_gid(device, port, i, &tmp_gid);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
if (!memcmp(&tmp_gid, gid, sizeof *gid)) {
|
|
|
|
*port_num = port;
|
|
|
|
if (index)
|
|
|
|
*index = i;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_find_gid);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* ib_find_pkey - Returns the PKey table index where a specified
|
|
|
|
* PKey value occurs.
|
|
|
|
* @device: The device to query.
|
|
|
|
* @port_num: The port number of the device to search for the PKey.
|
|
|
|
* @pkey: The PKey value to search for.
|
|
|
|
* @index: The index into the PKey table where the PKey was found.
|
|
|
|
*/
|
|
|
|
int ib_find_pkey(struct ib_device *device,
|
|
|
|
u8 port_num, u16 pkey, u16 *index)
|
|
|
|
{
|
|
|
|
int ret, i;
|
|
|
|
u16 tmp_pkey;
|
|
|
|
|
|
|
|
for (i = 0; i < device->pkey_tbl_len[port_num - start_port(device)]; ++i) {
|
|
|
|
ret = ib_query_pkey(device, port_num, i, &tmp_pkey);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
2007-07-23 01:07:42 -06:00
|
|
|
if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) {
|
2007-05-13 22:26:51 -06:00
|
|
|
*index = i;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ib_find_pkey);
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
static int __init ib_core_init(void)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = ib_sysfs_setup();
|
|
|
|
if (ret)
|
|
|
|
printk(KERN_WARNING "Couldn't create InfiniBand device class\n");
|
|
|
|
|
|
|
|
ret = ib_cache_setup();
|
|
|
|
if (ret) {
|
|
|
|
printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n");
|
|
|
|
ib_sysfs_cleanup();
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit ib_core_cleanup(void)
|
|
|
|
{
|
|
|
|
ib_cache_cleanup();
|
|
|
|
ib_sysfs_cleanup();
|
2007-03-04 17:15:11 -07:00
|
|
|
/* Make sure that any pending umem accounting work is done. */
|
|
|
|
flush_scheduled_work();
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
module_init(ib_core_init);
|
|
|
|
module_exit(ib_core_cleanup);
|