diff options
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/mr.h')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/mr.h | 92 | 
1 files changed, 92 insertions, 0 deletions
| diff --git a/drivers/infiniband/sw/rdmavt/mr.h b/drivers/infiniband/sw/rdmavt/mr.h new file mode 100644 index 000000000000..69380512c6d1 --- /dev/null +++ b/drivers/infiniband/sw/rdmavt/mr.h @@ -0,0 +1,92 @@ +#ifndef DEF_RVTMR_H +#define DEF_RVTMR_H + +/* + * Copyright(c) 2016 Intel Corporation. + * + * This file is provided under a dual BSD/GPLv2 license.  When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * 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. + *  - Neither the name of Intel Corporation nor the names of its + *    contributors may be used to endorse or promote products derived + *    from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 COPYRIGHT + * OWNER OR CONTRIBUTORS 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. + * + */ + +#include <rdma/rdma_vt.h> +struct rvt_fmr { +	struct ib_fmr ibfmr; +	struct rvt_mregion mr;        /* must be last */ +}; + +struct rvt_mr { +	struct ib_mr ibmr; +	struct ib_umem *umem; +	struct rvt_mregion mr;  /* must be last */ +}; + +static inline struct rvt_fmr *to_ifmr(struct ib_fmr *ibfmr) +{ +	return container_of(ibfmr, struct rvt_fmr, ibfmr); +} + +static inline struct rvt_mr *to_imr(struct ib_mr *ibmr) +{ +	return container_of(ibmr, struct rvt_mr, ibmr); +} + +int rvt_driver_mr_init(struct rvt_dev_info *rdi); +void rvt_mr_exit(struct rvt_dev_info *rdi); + +/* Mem Regions */ +struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc); +struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, +			      u64 virt_addr, int mr_access_flags, +			      struct ib_udata *udata); +int rvt_dereg_mr(struct ib_mr *ibmr); +struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, +			   enum ib_mr_type mr_type, +			   u32 max_num_sg); +struct ib_fmr *rvt_alloc_fmr(struct ib_pd *pd, int mr_access_flags, +			     struct ib_fmr_attr *fmr_attr); +int rvt_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, +		     int list_len, u64 iova); +int rvt_unmap_fmr(struct list_head *fmr_list); +int rvt_dealloc_fmr(struct ib_fmr *ibfmr); + +#endif          /* DEF_RVTMR_H */ | 
