alistair23-linux/drivers/infiniband/hw/amso1100/c2_pd.c
Greg Kroah-Hartman 1e6d9abea7 Drivers: infinband: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Tom Tucker <tom@opengridcomputing.com>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Cc: Christoph Raisch <raisch@de.ibm.com>
Cc: Mike Marciniszyn <infinipath@intel.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:15 -08:00

91 lines
2.9 KiB
C

/*
* Copyright (c) 2004 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. 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/init.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include "c2.h"
#include "c2_provider.h"
int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd)
{
u32 obj;
int ret = 0;
spin_lock(&c2dev->pd_table.lock);
obj = find_next_zero_bit(c2dev->pd_table.table, c2dev->pd_table.max,
c2dev->pd_table.last);
if (obj >= c2dev->pd_table.max)
obj = find_first_zero_bit(c2dev->pd_table.table,
c2dev->pd_table.max);
if (obj < c2dev->pd_table.max) {
pd->pd_id = obj;
__set_bit(obj, c2dev->pd_table.table);
c2dev->pd_table.last = obj+1;
if (c2dev->pd_table.last >= c2dev->pd_table.max)
c2dev->pd_table.last = 0;
} else
ret = -ENOMEM;
spin_unlock(&c2dev->pd_table.lock);
return ret;
}
void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd)
{
spin_lock(&c2dev->pd_table.lock);
__clear_bit(pd->pd_id, c2dev->pd_table.table);
spin_unlock(&c2dev->pd_table.lock);
}
int c2_init_pd_table(struct c2_dev *c2dev)
{
c2dev->pd_table.last = 0;
c2dev->pd_table.max = c2dev->props.max_pd;
spin_lock_init(&c2dev->pd_table.lock);
c2dev->pd_table.table = kmalloc(BITS_TO_LONGS(c2dev->props.max_pd) *
sizeof(long), GFP_KERNEL);
if (!c2dev->pd_table.table)
return -ENOMEM;
bitmap_zero(c2dev->pd_table.table, c2dev->props.max_pd);
return 0;
}
void c2_cleanup_pd_table(struct c2_dev *c2dev)
{
kfree(c2dev->pd_table.table);
}