c7818b48b6
hardware driver update from Mellanox Technologies. - Remove empty files from the OFED Linux Emulation layer. - Fix compile warnings related to printf() and the "%lld" and "%llx" format specifiers. - Add some missing 2-clause BSD copyrights. - Add "Mellanox Technologies, Ltd." to list of copyright holders. - Add some new compatibility files. - Fix order of uninit in the mlx4ib module to avoid crash at unload using the new module_exit_order() function. MFC after: 1 week Sponsored by: Mellanox Technologies
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 2010 Isilon Systems, Inc.
|
|
* Copyright (c) 2010 iX Systems, Inc.
|
|
* Copyright (c) 2010 Panasas, Inc.
|
|
* Copyright (c) 2013 Mellanox Technologies, Ltd.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. 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 AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
#ifndef _LINUX_GFP_H_
|
|
#define _LINUX_GFP_H_
|
|
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <linux/page.h>
|
|
|
|
#include <vm/vm_param.h>
|
|
#include <vm/vm_object.h>
|
|
#include <vm/vm_extern.h>
|
|
#include <vm/vm_kern.h>
|
|
|
|
#define __GFP_NOWARN 0
|
|
#define __GFP_HIGHMEM 0
|
|
#define __GFP_ZERO M_ZERO
|
|
|
|
#define GFP_NOWAIT M_NOWAIT
|
|
#define GFP_ATOMIC (M_NOWAIT | M_USE_RESERVE)
|
|
#define GFP_KERNEL M_WAITOK
|
|
#define GFP_USER M_WAITOK
|
|
#define GFP_HIGHUSER M_WAITOK
|
|
#define GFP_HIGHUSER_MOVABLE M_WAITOK
|
|
#define GFP_IOFS M_NOWAIT
|
|
|
|
static inline void *
|
|
page_address(struct page *page)
|
|
{
|
|
|
|
if (page->object != kmem_object && page->object != kernel_object)
|
|
return (NULL);
|
|
return ((void *)(uintptr_t)(VM_MIN_KERNEL_ADDRESS +
|
|
IDX_TO_OFF(page->pindex)));
|
|
}
|
|
|
|
static inline unsigned long
|
|
_get_page(gfp_t mask)
|
|
{
|
|
|
|
return kmem_malloc(kmem_arena, PAGE_SIZE, mask);
|
|
}
|
|
|
|
#define get_zeroed_page(mask) _get_page((mask) | M_ZERO)
|
|
#define alloc_page(mask) virt_to_page(_get_page((mask)))
|
|
#define __get_free_page(mask) _get_page((mask))
|
|
|
|
static inline void
|
|
free_page(unsigned long page)
|
|
{
|
|
|
|
if (page == 0)
|
|
return;
|
|
kmem_free(kmem_arena, page, PAGE_SIZE);
|
|
}
|
|
|
|
static inline void
|
|
__free_page(struct page *m)
|
|
{
|
|
|
|
if (m->object != kmem_object)
|
|
panic("__free_page: Freed page %p not allocated via wrappers.",
|
|
m);
|
|
kmem_free(kmem_arena, (vm_offset_t)page_address(m), PAGE_SIZE);
|
|
}
|
|
|
|
static inline void
|
|
__free_pages(struct page *m, unsigned int order)
|
|
{
|
|
size_t size;
|
|
|
|
if (m == NULL)
|
|
return;
|
|
size = PAGE_SIZE << order;
|
|
kmem_free(kmem_arena, (vm_offset_t)page_address(m), size);
|
|
}
|
|
|
|
/*
|
|
* Alloc pages allocates directly from the buddy allocator on linux so
|
|
* order specifies a power of two bucket of pages and the results
|
|
* are expected to be aligned on the size as well.
|
|
*/
|
|
static inline struct page *
|
|
alloc_pages(gfp_t gfp_mask, unsigned int order)
|
|
{
|
|
unsigned long page;
|
|
size_t size;
|
|
|
|
size = PAGE_SIZE << order;
|
|
page = kmem_alloc_contig(kmem_arena, size, gfp_mask, 0, -1,
|
|
size, 0, VM_MEMATTR_DEFAULT);
|
|
if (page == 0)
|
|
return (NULL);
|
|
return (virt_to_page(page));
|
|
}
|
|
|
|
#define alloc_pages_node(node, mask, order) alloc_pages(mask, order)
|
|
|
|
#define kmalloc_node(chunk, mask, node) kmalloc(chunk, mask)
|
|
|
|
#endif /* _LINUX_GFP_H_ */
|