5bb7d9290c
Add support for MR pages larger than 4K on eHCA2. This reduces firmware memory consumption. If enabled via the mr_largepage module parameter, the MR page size will be determined based on the MR length and the hardware capabilities -- if the MR is >= 16M, 16M pages are used, for example. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/*
|
|
* IBM eServer eHCA Infiniband device driver for Linux on POWER
|
|
*
|
|
* MR/MW declarations and inline functions
|
|
*
|
|
* Authors: Dietmar Decker <ddecker@de.ibm.com>
|
|
* Christoph Raisch <raisch@de.ibm.com>
|
|
*
|
|
* Copyright (c) 2005 IBM Corporation
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This source code is distributed under a dual license of GPL v2.0 and OpenIB
|
|
* BSD.
|
|
*
|
|
* OpenIB 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _EHCA_MRMW_H_
|
|
#define _EHCA_MRMW_H_
|
|
|
|
int ehca_reg_mr(struct ehca_shca *shca,
|
|
struct ehca_mr *e_mr,
|
|
u64 *iova_start,
|
|
u64 size,
|
|
int acl,
|
|
struct ehca_pd *e_pd,
|
|
struct ehca_mr_pginfo *pginfo,
|
|
u32 *lkey,
|
|
u32 *rkey);
|
|
|
|
int ehca_reg_mr_rpages(struct ehca_shca *shca,
|
|
struct ehca_mr *e_mr,
|
|
struct ehca_mr_pginfo *pginfo);
|
|
|
|
int ehca_rereg_mr(struct ehca_shca *shca,
|
|
struct ehca_mr *e_mr,
|
|
u64 *iova_start,
|
|
u64 size,
|
|
int mr_access_flags,
|
|
struct ehca_pd *e_pd,
|
|
struct ehca_mr_pginfo *pginfo,
|
|
u32 *lkey,
|
|
u32 *rkey);
|
|
|
|
int ehca_unmap_one_fmr(struct ehca_shca *shca,
|
|
struct ehca_mr *e_fmr);
|
|
|
|
int ehca_reg_smr(struct ehca_shca *shca,
|
|
struct ehca_mr *e_origmr,
|
|
struct ehca_mr *e_newmr,
|
|
u64 *iova_start,
|
|
int acl,
|
|
struct ehca_pd *e_pd,
|
|
u32 *lkey,
|
|
u32 *rkey);
|
|
|
|
int ehca_reg_internal_maxmr(struct ehca_shca *shca,
|
|
struct ehca_pd *e_pd,
|
|
struct ehca_mr **maxmr);
|
|
|
|
int ehca_reg_maxmr(struct ehca_shca *shca,
|
|
struct ehca_mr *e_newmr,
|
|
u64 *iova_start,
|
|
int acl,
|
|
struct ehca_pd *e_pd,
|
|
u32 *lkey,
|
|
u32 *rkey);
|
|
|
|
int ehca_dereg_internal_maxmr(struct ehca_shca *shca);
|
|
|
|
int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array,
|
|
int num_phys_buf,
|
|
u64 *iova_start,
|
|
u64 *size);
|
|
|
|
int ehca_fmr_check_page_list(struct ehca_mr *e_fmr,
|
|
u64 *page_list,
|
|
int list_len);
|
|
|
|
int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo,
|
|
u32 number,
|
|
u64 *kpage);
|
|
|
|
int ehca_mr_is_maxmr(u64 size,
|
|
u64 *iova_start);
|
|
|
|
void ehca_mrmw_map_acl(int ib_acl,
|
|
u32 *hipz_acl);
|
|
|
|
void ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl);
|
|
|
|
void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl,
|
|
int *ib_acl);
|
|
|
|
void ehca_mr_deletenew(struct ehca_mr *mr);
|
|
|
|
#endif /*_EHCA_MRMW_H_*/
|