91eb2b78a7
Update the OFED Infiniband core to the version supplied in Linux
version 3.7.
The update to OFED is nearly all additional defines and functions
with the exception of the addition of additional parameters to
ib_register_device() and the reg_user_mr callback.
In addition the ibcore (Infiniband core) and ipoib (IP over Infiniband)
have both been made into completely loadable modules to facilitate
testing of the OFED stack in FreeBSD.
Finally the Mellanox Infiniband drivers are now updated to the
latest version shipping with Linux 3.7.
Submitted by: Mellanox FreeBSD driver team:
Oded Shanoon (odeds mellanox.com),
Meny Yossefi (menyy mellanox.com),
Orit Moskovich (oritm mellanox.com)
Approved by: re
271 lines
7.8 KiB
C
271 lines
7.8 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_DMA_MAPPING_H_
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#define _LINUX_DMA_MAPPING_H_
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/dma-attrs.h>
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#include <linux/scatterlist.h>
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#include <linux/mm.h>
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#include <linux/page.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <vm/vm.h>
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#include <vm/vm_page.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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#include <machine/pmap.h>
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enum dma_data_direction {
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DMA_BIDIRECTIONAL = 0,
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DMA_TO_DEVICE = 1,
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DMA_FROM_DEVICE = 2,
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DMA_NONE = 3,
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};
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struct dma_map_ops {
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void* (*alloc_coherent)(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t gfp);
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void (*free_coherent)(struct device *dev, size_t size,
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void *vaddr, dma_addr_t dma_handle);
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dma_addr_t (*map_page)(struct device *dev, struct page *page,
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unsigned long offset, size_t size, enum dma_data_direction dir,
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struct dma_attrs *attrs);
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void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction dir, struct dma_attrs *attrs);
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int (*map_sg)(struct device *dev, struct scatterlist *sg,
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int nents, enum dma_data_direction dir, struct dma_attrs *attrs);
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void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nents,
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enum dma_data_direction dir, struct dma_attrs *attrs);
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void (*sync_single_for_cpu)(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction dir);
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void (*sync_single_for_device)(struct device *dev,
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dma_addr_t dma_handle, size_t size, enum dma_data_direction dir);
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void (*sync_single_range_for_cpu)(struct device *dev,
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dma_addr_t dma_handle, unsigned long offset, size_t size,
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enum dma_data_direction dir);
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void (*sync_single_range_for_device)(struct device *dev,
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dma_addr_t dma_handle, unsigned long offset, size_t size,
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enum dma_data_direction dir);
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void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
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int nents, enum dma_data_direction dir);
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void (*sync_sg_for_device)(struct device *dev, struct scatterlist *sg,
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int nents, enum dma_data_direction dir);
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int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
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int (*dma_supported)(struct device *dev, u64 mask);
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int is_phys;
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};
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#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL << (n)) - 1))
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static inline int
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dma_supported(struct device *dev, u64 mask)
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{
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/* XXX busdma takes care of this elsewhere. */
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return (1);
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}
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static inline int
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dma_set_mask(struct device *dev, u64 dma_mask)
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{
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if (!dev->dma_mask || !dma_supported(dev, dma_mask))
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return -EIO;
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*dev->dma_mask = dma_mask;
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return (0);
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}
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static inline int
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dma_set_coherent_mask(struct device *dev, u64 mask)
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{
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if (!dma_supported(dev, mask))
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return -EIO;
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/* XXX Currently we don't support a seperate coherent mask. */
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return 0;
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}
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static inline void *
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dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
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gfp_t flag)
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{
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vm_paddr_t high;
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size_t align;
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void *mem;
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if (dev->dma_mask)
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high = *dev->dma_mask;
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else
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high = BUS_SPACE_MAXADDR_32BIT;
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align = PAGE_SIZE << get_order(size);
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mem = (void *)kmem_alloc_contig(kmem_arena, size, flag, 0, high, align,
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0, VM_MEMATTR_DEFAULT);
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if (mem)
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*dma_handle = vtophys(mem);
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else
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*dma_handle = 0;
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return (mem);
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}
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static inline void
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dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
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dma_addr_t dma_handle)
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{
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kmem_free(kmem_arena, (vm_offset_t)cpu_addr, size);
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}
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/* XXX This only works with no iommu. */
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static inline dma_addr_t
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dma_map_single_attrs(struct device *dev, void *ptr, size_t size,
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enum dma_data_direction dir, struct dma_attrs *attrs)
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{
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return vtophys(ptr);
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}
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static inline void
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dma_unmap_single_attrs(struct device *dev, dma_addr_t addr, size_t size,
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enum dma_data_direction dir, struct dma_attrs *attrs)
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{
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}
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static inline int
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dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, int nents,
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enum dma_data_direction dir, struct dma_attrs *attrs)
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{
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struct scatterlist *sg;
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int i;
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for_each_sg(sgl, sg, nents, i)
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sg_dma_address(sg) = sg_phys(sg);
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return (nents);
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}
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static inline void
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dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg, int nents,
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enum dma_data_direction dir, struct dma_attrs *attrs)
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{
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}
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static inline dma_addr_t
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dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size, enum dma_data_direction direction)
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{
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return VM_PAGE_TO_PHYS(page) + offset;
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}
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static inline void
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dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
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enum dma_data_direction direction)
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{
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}
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static inline void
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dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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}
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static inline void
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dma_sync_single(struct device *dev, dma_addr_t addr, size_t size,
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enum dma_data_direction dir)
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{
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dma_sync_single_for_cpu(dev, addr, size, dir);
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}
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static inline void
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dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction direction)
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{
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}
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static inline void
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dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
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enum dma_data_direction direction)
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{
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}
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static inline void
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dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
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enum dma_data_direction direction)
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{
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}
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static inline void
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dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
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unsigned long offset, size_t size, int direction)
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{
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}
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static inline void
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dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
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unsigned long offset, size_t size, int direction)
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{
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}
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static inline int
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dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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{
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return (0);
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}
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static inline unsigned int dma_set_max_seg_size(struct device *dev,
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unsigned int size)
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{
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return (0);
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}
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#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
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#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
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#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
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#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
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#define DEFINE_DMA_UNMAP_ADDR(name) dma_addr_t name
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#define DEFINE_DMA_UNMAP_LEN(name) __u32 name
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#define dma_unmap_addr(p, name) ((p)->name)
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#define dma_unmap_addr_set(p, name, v) (((p)->name) = (v))
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#define dma_unmap_len(p, name) ((p)->name)
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#define dma_unmap_len_set(p, name, v) (((p)->name) = (v))
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extern int uma_align_cache;
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#define dma_get_cache_alignment() uma_align_cache
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#endif /* _LINUX_DMA_MAPPING_H_ */
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