diff options
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_umem.h | 81 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 28 |
2 files changed, 85 insertions, 24 deletions
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h new file mode 100644 index 000000000000..b3a36f7d79e5 --- /dev/null +++ b/include/rdma/ib_umem.h @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2007 Cisco Systems. 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. + */ + +#ifndef IB_UMEM_H +#define IB_UMEM_H + +#include <linux/list.h> +#include <linux/scatterlist.h> + +struct ib_ucontext; + +struct ib_umem { + struct ib_ucontext *context; + size_t length; + int offset; + int page_size; + int writable; + struct list_head chunk_list; + struct work_struct work; + struct mm_struct *mm; + unsigned long diff; +}; + +struct ib_umem_chunk { + struct list_head list; + int nents; + int nmap; + struct scatterlist page_list[0]; +}; + +#ifdef CONFIG_INFINIBAND_USER_MEM + +struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, + size_t size, int access); +void ib_umem_release(struct ib_umem *umem); +int ib_umem_page_count(struct ib_umem *umem); + +#else /* CONFIG_INFINIBAND_USER_MEM */ + +#include <linux/err.h> + +static inline struct ib_umem *ib_umem_get(struct ib_ucontext *context, + unsigned long addr, size_t size, + int access) { + return ERR_PTR(-EINVAL); +} +static inline void ib_umem_release(struct ib_umem *umem) { } +static inline int ib_umem_page_count(struct ib_umem *umem) { return 0; } + +#endif /* CONFIG_INFINIBAND_USER_MEM */ + +#endif /* IB_UMEM_H */ diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 5342ac64ed1a..47cefca59c89 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -5,7 +5,7 @@ * Copyright (c) 2004 Topspin Corporation. All rights reserved. * Copyright (c) 2004 Voltaire Corporation. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. - * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. + * Copyright (c) 2005, 2006, 2007 Cisco Systems. 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 @@ -710,6 +710,7 @@ struct ib_ucontext { struct list_head qp_list; struct list_head srq_list; struct list_head ah_list; + int closing; }; struct ib_uobject { @@ -723,23 +724,6 @@ struct ib_uobject { int live; }; -struct ib_umem { - unsigned long user_base; - unsigned long virt_base; - size_t length; - int offset; - int page_size; - int writable; - struct list_head chunk_list; -}; - -struct ib_umem_chunk { - struct list_head list; - int nents; - int nmap; - struct scatterlist page_list[0]; -}; - struct ib_udata { void __user *inbuf; void __user *outbuf; @@ -752,11 +736,6 @@ struct ib_udata { ((void *) &((struct ib_umem_chunk *) 0)->page_list[1] - \ (void *) &((struct ib_umem_chunk *) 0)->page_list[0])) -struct ib_umem_object { - struct ib_uobject uobject; - struct ib_umem umem; -}; - struct ib_pd { struct ib_device *device; struct ib_uobject *uobject; @@ -1003,7 +982,8 @@ struct ib_device { int mr_access_flags, u64 *iova_start); struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, - struct ib_umem *region, + u64 start, u64 length, + u64 virt_addr, int mr_access_flags, struct ib_udata *udata); int (*query_mr)(struct ib_mr *mr, |