ehca_mrmw.c revision e37221928bf685d63ba5319746eafe463d61e330
1fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* 2fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * IBM eServer eHCA Infiniband device driver for Linux on POWER 3fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 4fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * MR/MW functions 5fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 6fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Authors: Dietmar Decker <ddecker@de.ibm.com> 7fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Christoph Raisch <raisch@de.ibm.com> 85bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * Hoang-Nam Nguyen <hnguyen@de.ibm.com> 9fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 10fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Copyright (c) 2005 IBM Corporation 11fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 12fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * All rights reserved. 13fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 14fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * This source code is distributed under a dual license of GPL v2.0 and OpenIB 15fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * BSD. 16fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 17fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * OpenIB BSD License 18fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 19fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Redistribution and use in source and binary forms, with or without 20fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * modification, are permitted provided that the following conditions are met: 21fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 22fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Redistributions of source code must retain the above copyright notice, this 23fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * list of conditions and the following disclaimer. 24fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 25fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Redistributions in binary form must reproduce the above copyright notice, 26fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * this list of conditions and the following disclaimer in the documentation 27fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * and/or other materials 28fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * provided with the distribution. 29fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * 30fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 31fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 34fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 35fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 36fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 37fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 38fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * POSSIBILITY OF SUCH DAMAGE. 41fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 42fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 43fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick#include <asm/current.h> 44fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 4505d989f948cda7398c9d5089d78a122502e644d2Hoang-Nam Nguyen#include <rdma/ib_umem.h> 4605d989f948cda7398c9d5089d78a122502e644d2Hoang-Nam Nguyen 47fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick#include "ehca_iverbs.h" 48fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick#include "ehca_mrmw.h" 49fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick#include "hcp_if.h" 50fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick#include "hipz_hw.h" 51fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 522492398e616451788bc7c7905cadb8734b082bc7Hoang-Nam Nguyen#define NUM_CHUNKS(length, chunk_size) \ 532492398e616451788bc7c7905cadb8734b082bc7Hoang-Nam Nguyen (((length) + (chunk_size - 1)) / (chunk_size)) 544e4e74cae73325c9f8513fae3a5bd9f79458f4a7Hoang-Nam Nguyen/* max number of rpages (per hcall register_rpages) */ 554e4e74cae73325c9f8513fae3a5bd9f79458f4a7Hoang-Nam Nguyen#define MAX_RPAGES 512 564e4e74cae73325c9f8513fae3a5bd9f79458f4a7Hoang-Nam Nguyen 57fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic struct kmem_cache *mr_cache; 58fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic struct kmem_cache *mw_cache; 59fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 605bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenenum ehca_mr_pgsize { 615bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen EHCA_MR_PGSIZE4K = 0x1000L, 625bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen EHCA_MR_PGSIZE64K = 0x10000L, 635bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen EHCA_MR_PGSIZE1M = 0x100000L, 645bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen EHCA_MR_PGSIZE16M = 0x1000000L 655bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen}; 665bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 675bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenstatic u32 ehca_encode_hwpage_size(u32 pgsize) 685bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen{ 695bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u32 idx = 0; 705bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgsize >>= 12; 715bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* 725bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * map mr page size into hw code: 735bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * 0, 1, 2, 3 for 4K, 64K, 1M, 64M 745bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen */ 755bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen while (!(pgsize & 1)) { 765bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen idx++; 775bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgsize >>= 4; 785bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 795bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return idx; 805bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen} 815bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 825bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenstatic u64 ehca_get_max_hwpage_size(struct ehca_shca *shca) 835bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen{ 845bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M) 855bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return EHCA_MR_PGSIZE16M; 865bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return EHCA_MR_PGSIZE4K; 875bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen} 885bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 89fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic struct ehca_mr *ehca_mr_new(void) 90fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 91fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *me; 92fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 93c376222960ae91d5ffb9197ee36771aaed1d9f90Robert P. J. Day me = kmem_cache_zalloc(mr_cache, GFP_KERNEL); 942b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen if (me) 95fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_lock_init(&me->mrlock); 962b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen else 97fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("alloc failed"); 98fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 99fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return me; 100fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 101fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 102fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic void ehca_mr_delete(struct ehca_mr *me) 103fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 104fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kmem_cache_free(mr_cache, me); 105fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 106fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 107fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic struct ehca_mw *ehca_mw_new(void) 108fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 109fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mw *me; 110fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 111c376222960ae91d5ffb9197ee36771aaed1d9f90Robert P. J. Day me = kmem_cache_zalloc(mw_cache, GFP_KERNEL); 1122b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen if (me) 113fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_lock_init(&me->mwlock); 1142b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen else 115fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("alloc failed"); 116fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 117fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return me; 118fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 119fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 120fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstatic void ehca_mw_delete(struct ehca_mw *me) 121fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 122fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kmem_cache_free(mw_cache, me); 123fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 124fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 125fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 126fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 127fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstruct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) 128fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 129fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mr *ib_mr; 130fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 131fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_maxmr; 132fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); 133fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 134fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(pd->device, struct ehca_shca, ib_device); 135fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 136fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (shca->maxmr) { 137fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_maxmr = ehca_mr_new(); 138fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_maxmr) { 139fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "out of memory"); 140fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-ENOMEM); 141fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto get_dma_mr_exit0; 142fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 143fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1442b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen ret = ehca_reg_maxmr(shca, e_maxmr, (u64 *)KERNELBASE, 145fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags, e_pd, 146fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &e_maxmr->ib.ib_mr.lkey, 147fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &e_maxmr->ib.ib_mr.rkey); 148fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1493df78f81e070c0e3330ae1bd40385e2f0d6fea2cHoang-Nam Nguyen ehca_mr_delete(e_maxmr); 150fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(ret); 151fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto get_dma_mr_exit0; 152fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 153fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = &e_maxmr->ib.ib_mr; 154fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else { 155fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "no internal max-MR exist!"); 156fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 157fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto get_dma_mr_exit0; 158fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 159fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 160fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickget_dma_mr_exit0: 161fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (IS_ERR(ib_mr)) 162e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "h_ret=%li pd=%p mr_access_flags=%x", 163fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick PTR_ERR(ib_mr), pd, mr_access_flags); 164fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ib_mr; 165fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_get_dma_mr() */ 166fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 167fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 168fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 169fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstruct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, 170fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_phys_buf *phys_buf_array, 171fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int num_phys_buf, 172fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int mr_access_flags, 173fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start) 174fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 175fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mr *ib_mr; 176fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 177fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr; 178fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 179fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(pd->device, struct ehca_shca, ib_device); 180fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); 181fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 182fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size; 183fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 184fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((num_phys_buf <= 0) || !phys_buf_array) { 185fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: num_phys_buf=%x " 186fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "phys_buf_array=%p", num_phys_buf, phys_buf_array); 187fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 188fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit0; 189fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 190fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && 191fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || 192fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && 193fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { 194fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 195fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Write Access requires Local Write Access 196fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Atomic Access requires Local Write Access 197fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 198fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: mr_access_flags=%x", 199fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags); 200fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 201fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit0; 202fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 203fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 204fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check physical buffer list and calculate size */ 205fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, num_phys_buf, 206fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick iova_start, &size); 207fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 208fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(ret); 209fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit0; 210fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 211fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((size == 0) || 212fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (((u64)iova_start + size) < (u64)iova_start)) { 213fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: size=%lx iova_start=%p", 214fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick size, iova_start); 215fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 216fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit0; 217fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 218fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 219fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr = ehca_mr_new(); 220fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_mr) { 221fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "out of memory"); 222fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-ENOMEM); 223fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit0; 224fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 225fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 226fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* register MR on HCA */ 227fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ehca_mr_is_maxmr(size, iova_start)) { 228fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->flags |= EHCA_MR_FLAG_MAXMR; 229fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_maxmr(shca, e_mr, iova_start, mr_access_flags, 230fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_pd, &e_mr->ib.ib_mr.lkey, 231fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &e_mr->ib.ib_mr.rkey); 232fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 233fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(ret); 234fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit1; 235fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 236fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else { 237df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 238df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_kpages; 239df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_hwpages; 2405bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 hw_pgsize; 241df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen 242df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size, 243df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen PAGE_SIZE); 2445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* for kernel space we try most possible pgsize */ 2455bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hw_pgsize = ehca_get_max_hwpage_size(shca); 2465bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size, 2475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hw_pgsize); 248df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 249df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_PHYS; 250df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_kpages = num_kpages; 2515bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.hwpage_size = hw_pgsize; 252df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_hwpages = num_hwpages; 253df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.num_phys_buf = num_phys_buf; 254df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.phys_buf_array = phys_buf_array; 2555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.next_hwpage = 2565bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; 257fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 258fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, 259fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, 260fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &e_mr->ib.ib_mr.rkey); 261fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 262fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(ret); 263fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_phys_mr_exit1; 264fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 265fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 266fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 267fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration of all pages */ 268fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return &e_mr->ib.ib_mr; 269fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 270fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickreg_phys_mr_exit1: 271fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_mr); 272fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickreg_phys_mr_exit0: 273fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (IS_ERR(ib_mr)) 274e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(pd->device, "h_ret=%li pd=%p phys_buf_array=%p " 275fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "num_phys_buf=%x mr_access_flags=%x iova_start=%p", 276fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick PTR_ERR(ib_mr), pd, phys_buf_array, 277fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick num_phys_buf, mr_access_flags, iova_start); 278fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ib_mr; 279fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_phys_mr() */ 280fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 281fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 282fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2832b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyenstruct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 2842b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen u64 virt, int mr_access_flags, 2852b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ib_udata *udata) 286fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 287fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mr *ib_mr; 288fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr; 289fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 290fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(pd->device, struct ehca_shca, ib_device); 291fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); 292df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 293fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 294df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_kpages; 295df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_hwpages; 2965bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 hwpage_size; 297fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 298fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!pd) { 299fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad pd=%p", pd); 300fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ERR_PTR(-EFAULT); 301fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 302f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier 303fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && 304fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || 305fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && 306fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { 307fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 308fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Write Access requires Local Write Access 309fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Atomic Access requires Local Write Access 310fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 311fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: mr_access_flags=%x", 312fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags); 313fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 314fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_user_mr_exit0; 315fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 316fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 317f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier if (length == 0 || virt + length < virt) { 318fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: length=%lx " 319f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier "virt_base=%lx", length, virt); 320fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-EINVAL); 321fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_user_mr_exit0; 322fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 323fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 324fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr = ehca_mr_new(); 325fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_mr) { 326fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "out of memory"); 327fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(-ENOMEM); 328fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto reg_user_mr_exit0; 329fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 330fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 331f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier e_mr->umem = ib_umem_get(pd->uobject->context, start, length, 332f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier mr_access_flags); 333f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier if (IS_ERR(e_mr->umem)) { 3342b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen ib_mr = (void *)e_mr->umem; 335f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier goto reg_user_mr_exit1; 336f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier } 337f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier 338f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier if (e_mr->umem->page_size != PAGE_SIZE) { 339f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier ehca_err(pd->device, "page size not supported, " 340f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier "e_mr->umem->page_size=%x", e_mr->umem->page_size); 341f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier ib_mr = ERR_PTR(-EINVAL); 342f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier goto reg_user_mr_exit2; 343f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier } 344f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier 345fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* determine number of MR pages */ 346df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); 3475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* select proper hw_pgsize */ 3485bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (ehca_mr_largepage && 3495bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M)) { 3505bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (length <= EHCA_MR_PGSIZE4K 3515bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen && PAGE_SIZE == EHCA_MR_PGSIZE4K) 3525bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = EHCA_MR_PGSIZE4K; 3535bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen else if (length <= EHCA_MR_PGSIZE64K) 3545bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = EHCA_MR_PGSIZE64K; 3555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen else if (length <= EHCA_MR_PGSIZE1M) 3565bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = EHCA_MR_PGSIZE1M; 3575bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen else 3585bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = EHCA_MR_PGSIZE16M; 3595bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else 3605bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = EHCA_MR_PGSIZE4K; 3615bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_dbg(pd->device, "hwpage_size=%lx", hwpage_size); 362fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 3635bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenreg_user_mr_fallback: 3645bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen num_hwpages = NUM_CHUNKS((virt % hwpage_size) + length, hwpage_size); 365fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* register MR on HCA */ 366df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 367df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_USER; 3685bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.hwpage_size = hwpage_size; 369df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_kpages = num_kpages; 370df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_hwpages = num_hwpages; 371df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.usr.region = e_mr->umem; 3725bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.next_hwpage = e_mr->umem->offset / hwpage_size; 373df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.usr.next_chunk = list_prepare_entry(pginfo.u.usr.next_chunk, 374df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (&e_mr->umem->chunk_list), 375df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen list); 376fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 3772b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen ret = ehca_reg_mr(shca, e_mr, (u64 *)virt, length, mr_access_flags, 3782b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, 3792b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen &e_mr->ib.ib_mr.rkey); 3805bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (ret == -EINVAL && pginfo.hwpage_size > PAGE_SIZE) { 3815bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_warn(pd->device, "failed to register mr " 3825bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "with hwpage_size=%lx", hwpage_size); 3835bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_info(pd->device, "try to register mr with " 3845bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "kpage_size=%lx", PAGE_SIZE); 3855bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* 3865bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * this means kpages are not contiguous for a hw page 3875bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * try kernel page size as fallback solution 3885bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen */ 3895bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hwpage_size = PAGE_SIZE; 3905bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen goto reg_user_mr_fallback; 3915bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 392fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 393fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mr = ERR_PTR(ret); 394f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier goto reg_user_mr_exit2; 395fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 396fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 397fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration of all pages */ 398fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return &e_mr->ib.ib_mr; 399fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 400f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreierreg_user_mr_exit2: 401f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier ib_umem_release(e_mr->umem); 402fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickreg_user_mr_exit1: 403fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_mr); 404fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickreg_user_mr_exit0: 405fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (IS_ERR(ib_mr)) 406e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(pd->device, "rc=%li pd=%p mr_access_flags=%x udata=%p", 407f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier PTR_ERR(ib_mr), pd, mr_access_flags, udata); 408fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ib_mr; 409fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_user_mr() */ 410fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 411fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 412fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 413fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_rereg_phys_mr(struct ib_mr *mr, 414fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int mr_rereg_mask, 415fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_pd *pd, 416fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_phys_buf *phys_buf_array, 417fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int num_phys_buf, 418fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int mr_access_flags, 419fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start) 420fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 421fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 422fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 423fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 424fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(mr->device, struct ehca_shca, ib_device); 425fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); 426fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); 427fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 new_size; 428fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *new_start; 429fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 new_acl; 430fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *new_pd; 431fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 tmp_lkey, tmp_rkey; 432fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick unsigned long sl_flags; 433df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_kpages = 0; 434df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_hwpages = 0; 435df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 436fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 cur_pid = current->tgid; 437fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 438fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && 439fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (my_pd->ownpid != cur_pid)) { 440fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", 441fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick cur_pid, my_pd->ownpid); 442fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 443fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 444fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 445fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 446fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!(mr_rereg_mask & IB_MR_REREG_TRANS)) { 447fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* TODO not supported, because PHYP rereg hCall needs pages */ 448fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "rereg without IB_MR_REREG_TRANS not " 449fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "supported yet, mr_rereg_mask=%x", mr_rereg_mask); 450fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 451fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 452fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 453fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 454fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_PD) { 455fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!pd) { 456fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "rereg with bad pd, pd=%p " 457fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mr_rereg_mask=%x", pd, mr_rereg_mask); 458fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 459fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 460fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 461fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 462fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 463fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((mr_rereg_mask & 464fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ~(IB_MR_REREG_TRANS | IB_MR_REREG_PD | IB_MR_REREG_ACCESS)) || 465fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (mr_rereg_mask == 0)) { 466fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 467fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 468fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 469fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 470fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check other parameters */ 471fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (e_mr == shca->maxmr) { 472fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* should be impossible, however reject to be sure */ 473fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "rereg internal max-MR impossible, mr=%p " 474fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "shca->maxmr=%p mr->lkey=%x", 475fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr, shca->maxmr, mr->lkey); 476fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 477fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 478fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 479fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_TRANS) { /* transl., i.e. addr/size */ 480fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (e_mr->flags & EHCA_MR_FLAG_FMR) { 481fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "not supported for FMR, mr=%p " 482fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "flags=%x", mr, e_mr->flags); 483fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 484fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 485fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 486fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!phys_buf_array || num_phys_buf <= 0) { 4872b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen ehca_err(mr->device, "bad input values mr_rereg_mask=%x" 488fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick " phys_buf_array=%p num_phys_buf=%x", 489fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_rereg_mask, phys_buf_array, num_phys_buf); 490fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 491fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 492fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 493fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 494fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((mr_rereg_mask & IB_MR_REREG_ACCESS) && /* change ACL */ 495fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && 496fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || 497fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && 498fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)))) { 499fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 500fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Write Access requires Local Write Access 501fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Atomic Access requires Local Write Access 502fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 503fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "bad input values: mr_rereg_mask=%x " 504fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mr_access_flags=%x", mr_rereg_mask, mr_access_flags); 505fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 506fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit0; 507fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 508fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 509fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* set requested values dependent on rereg request */ 510fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_lock_irqsave(&e_mr->mrlock, sl_flags); 5112b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen new_start = e_mr->start; 5122b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen new_size = e_mr->size; 5132b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen new_acl = e_mr->acl; 5142b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen new_pd = container_of(mr->pd, struct ehca_pd, ib_pd); 515fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 516fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_TRANS) { 5175bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 hw_pgsize = ehca_get_max_hwpage_size(shca); 5185bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 519fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick new_start = iova_start; /* change address */ 520fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check physical buffer list and calculate size */ 521fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, 522fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick num_phys_buf, iova_start, 523fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &new_size); 524fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 525fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit1; 526fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((new_size == 0) || 527fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (((u64)iova_start + new_size) < (u64)iova_start)) { 528fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "bad input values: new_size=%lx " 529fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "iova_start=%p", new_size, iova_start); 530fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 531fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit1; 532fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 533df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + 534df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen new_size, PAGE_SIZE); 5355bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen num_hwpages = NUM_CHUNKS(((u64)new_start % hw_pgsize) + 5365bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen new_size, hw_pgsize); 537df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 538df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_PHYS; 539df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_kpages = num_kpages; 5405bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.hwpage_size = hw_pgsize; 541df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_hwpages = num_hwpages; 542df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.num_phys_buf = num_phys_buf; 543df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.phys_buf_array = phys_buf_array; 5445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.next_hwpage = 5455bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; 546fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 547fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_ACCESS) 548fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick new_acl = mr_access_flags; 549fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_PD) 550fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick new_pd = container_of(pd, struct ehca_pd, ib_pd); 551fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 552fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_rereg_mr(shca, e_mr, new_start, new_size, new_acl, 553fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick new_pd, &pginfo, &tmp_lkey, &tmp_rkey); 554fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 555fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto rereg_phys_mr_exit1; 556fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 557fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful reregistration */ 558fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_rereg_mask & IB_MR_REREG_PD) 559fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr->pd = pd; 560fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr->lkey = tmp_lkey; 561fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr->rkey = tmp_rkey; 562fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 563fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickrereg_phys_mr_exit1: 564fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); 565fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickrereg_phys_mr_exit0: 566fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 567e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mr->device, "ret=%i mr=%p mr_rereg_mask=%x pd=%p " 568fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "phys_buf_array=%p num_phys_buf=%x mr_access_flags=%x " 569fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "iova_start=%p", 570fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, mr, mr_rereg_mask, pd, phys_buf_array, 571fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick num_phys_buf, mr_access_flags, iova_start); 572fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 573fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_rereg_phys_mr() */ 574fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 575fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 576fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 577fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) 578fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 579fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 580fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 581fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 582fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(mr->device, struct ehca_shca, ib_device); 583fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); 584fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); 585fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 cur_pid = current->tgid; 586fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick unsigned long sl_flags; 5872b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 588fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 589fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && 590fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (my_pd->ownpid != cur_pid)) { 591fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", 592fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick cur_pid, my_pd->ownpid); 593fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 594fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto query_mr_exit0; 595fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 596fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 597fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { 598fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " 599fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_mr->flags=%x", mr, e_mr, e_mr->flags); 600fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 601fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto query_mr_exit0; 602fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 603fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 604fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick memset(mr_attr, 0, sizeof(struct ib_mr_attr)); 605fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_lock_irqsave(&e_mr->mrlock, sl_flags); 606fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 607fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_query_mr(shca->ipz_hca_handle, e_mr, &hipzout); 608fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 609e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mr->device, "hipz_mr_query failed, h_ret=%li mr=%p " 610fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "hca_hndl=%lx mr_hndl=%lx lkey=%x", 611fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, mr, shca->ipz_hca_handle.handle, 612fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle.handle, mr->lkey); 613a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 614fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto query_mr_exit1; 615fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 616df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr_attr->pd = mr->pd; 617fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_attr->device_virt_addr = hipzout.vaddr; 618df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr_attr->size = hipzout.len; 619df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr_attr->lkey = hipzout.lkey; 620df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr_attr->rkey = hipzout.rkey; 621fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); 622fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 623fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickquery_mr_exit1: 624fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); 625fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickquery_mr_exit0: 626fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 627e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mr->device, "ret=%i mr=%p mr_attr=%p", 628fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, mr, mr_attr); 629fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 630fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_query_mr() */ 631fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 632fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 633fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 634fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_dereg_mr(struct ib_mr *mr) 635fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 636fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 637fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 638fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 639fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(mr->device, struct ehca_shca, ib_device); 640fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); 641fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); 642fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 cur_pid = current->tgid; 643fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 644fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && 645fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (my_pd->ownpid != cur_pid)) { 646fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", 647fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick cur_pid, my_pd->ownpid); 648fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 649fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto dereg_mr_exit0; 650fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 651fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 652fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { 653fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " 654fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_mr->flags=%x", mr, e_mr, e_mr->flags); 655fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 656fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto dereg_mr_exit0; 657fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else if (e_mr == shca->maxmr) { 658fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* should be impossible, however reject to be sure */ 659fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(mr->device, "dereg internal max-MR impossible, mr=%p " 660fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "shca->maxmr=%p mr->lkey=%x", 661fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr, shca->maxmr, mr->lkey); 662fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 663fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto dereg_mr_exit0; 664fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 665fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 666fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* TODO: BUSY: MR still has bound window(s) */ 667fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); 668fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 669e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mr->device, "hipz_free_mr failed, h_ret=%li shca=%p " 670fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", 671fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, shca, e_mr, shca->ipz_hca_handle.handle, 672fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle.handle, mr->lkey); 673a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 674fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto dereg_mr_exit0; 675fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 676fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 677f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier if (e_mr->umem) 678f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier ib_umem_release(e_mr->umem); 679f7c6a7b5d59980b076abbf2ceeb8735591290285Roland Dreier 680fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful deregistration */ 681fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_mr); 682fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 683fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickdereg_mr_exit0: 684fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 685e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mr->device, "ret=%i mr=%p", ret, mr); 686fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 687fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_dereg_mr() */ 688fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 689fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 690fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 691fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstruct ib_mw *ehca_alloc_mw(struct ib_pd *pd) 692fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 693fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mw *ib_mw; 694fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 695fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mw *e_mw; 696fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); 697fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 698fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(pd->device, struct ehca_shca, ib_device); 6992b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mw_hipzout_parms hipzout; 700fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 701fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mw = ehca_mw_new(); 702fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_mw) { 703fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_mw = ERR_PTR(-ENOMEM); 704fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_mw_exit0; 705fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 706fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 707fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_alloc_resource_mw(shca->ipz_hca_handle, e_mw, 708fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_pd->fw_pd, &hipzout); 709fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 710e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%li " 711fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "shca=%p hca_hndl=%lx mw=%p", 712fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, shca, shca->ipz_hca_handle.handle, e_mw); 713a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ib_mw = ERR_PTR(ehca2ib_return_code(h_ret)); 714fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_mw_exit1; 715fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 716fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful MW allocation */ 717fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mw->ipz_mw_handle = hipzout.handle; 718fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mw->ib_mw.rkey = hipzout.rkey; 719fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return &e_mw->ib_mw; 720fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 721fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickalloc_mw_exit1: 722fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mw_delete(e_mw); 723fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickalloc_mw_exit0: 724fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (IS_ERR(ib_mw)) 725e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(pd->device, "h_ret=%li pd=%p", PTR_ERR(ib_mw), pd); 726fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ib_mw; 727fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_alloc_mw() */ 728fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 729fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 730fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 731fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_bind_mw(struct ib_qp *qp, 732fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mw *mw, 733fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_mw_bind *mw_bind) 734fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 735fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* TODO: not supported up to now */ 736fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bind MW currently not supported by HCAD"); 737fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 738fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EPERM; 739fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_bind_mw() */ 740fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 741fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 742fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 743fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_dealloc_mw(struct ib_mw *mw) 744fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 745fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 746fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 747fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(mw->device, struct ehca_shca, ib_device); 748fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mw *e_mw = container_of(mw, struct ehca_mw, ib_mw); 749fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 750fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_free_resource_mw(shca->ipz_hca_handle, e_mw); 751fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 752e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(mw->device, "hipz_free_mw failed, h_ret=%li shca=%p " 753fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", 754fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, 755fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mw->ipz_mw_handle.handle); 756a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen return ehca2ib_return_code(h_ret); 757fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 758fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful deallocation */ 759fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mw_delete(e_mw); 760fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 761fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_dealloc_mw() */ 762fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 763fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 764fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 765fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickstruct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, 766fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int mr_access_flags, 767fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_fmr_attr *fmr_attr) 768fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 769fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_fmr *ib_fmr; 770fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 771fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(pd->device, struct ehca_shca, ib_device); 772fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); 773fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_fmr; 774fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 775fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 tmp_lkey, tmp_rkey; 776df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 7775bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 hw_pgsize; 778fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 779fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check other parameters */ 780fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && 781fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || 782fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && 783fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { 784fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 785fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Write Access requires Local Write Access 786fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * Remote Atomic Access requires Local Write Access 787fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 788fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: mr_access_flags=%x", 789fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags); 790fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(-EINVAL); 791fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit0; 792fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 793fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_access_flags & IB_ACCESS_MW_BIND) { 794fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: mr_access_flags=%x", 795fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags); 796fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(-EINVAL); 797fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit0; 798fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 799fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((fmr_attr->max_pages == 0) || (fmr_attr->max_maps == 0)) { 800fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "bad input values: fmr_attr->max_pages=%x " 801fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "fmr_attr->max_maps=%x fmr_attr->page_shift=%x", 802fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick fmr_attr->max_pages, fmr_attr->max_maps, 803fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick fmr_attr->page_shift); 804fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(-EINVAL); 805fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit0; 806fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 8075bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hw_pgsize = ehca_get_max_hwpage_size(shca); 8085bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if ((1 << fmr_attr->page_shift) != hw_pgsize) { 809fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(pd->device, "unsupported fmr_attr->page_shift=%x", 810fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick fmr_attr->page_shift); 811fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(-EINVAL); 812fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit0; 813fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 814fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 815fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr = ehca_mr_new(); 816fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_fmr) { 817fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(-ENOMEM); 818fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit0; 819fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 820fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->flags |= EHCA_MR_FLAG_FMR; 821fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 822fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* register MR on HCA */ 823df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 8245bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* 8255bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * pginfo.num_hwpages==0, ie register_rpages() will not be called 8265bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * but deferred to map_phys_fmr() 8275bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen */ 828fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_mr(shca, e_fmr, NULL, 829fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick fmr_attr->max_pages * (1 << fmr_attr->page_shift), 830fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_access_flags, e_pd, &pginfo, 831fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &tmp_lkey, &tmp_rkey); 832fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 833fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_fmr = ERR_PTR(ret); 834fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto alloc_fmr_exit1; 835fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 836fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 837fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful */ 8385bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_fmr->hwpage_size = hw_pgsize; 839fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_page_size = 1 << fmr_attr->page_shift; 840fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_max_pages = fmr_attr->max_pages; 841fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_max_maps = fmr_attr->max_maps; 842fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_map_cnt = 0; 843fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return &e_fmr->ib.ib_fmr; 844fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 845fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickalloc_fmr_exit1: 846fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_fmr); 847fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickalloc_fmr_exit0: 848fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ib_fmr; 849fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_alloc_fmr() */ 850fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 851fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 852fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 853fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_map_phys_fmr(struct ib_fmr *fmr, 854fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *page_list, 855fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int list_len, 856fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 iova) 857fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 858fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 859fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 860fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(fmr->device, struct ehca_shca, ib_device); 861fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); 862fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); 863df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 864fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 tmp_lkey, tmp_rkey; 865fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 866fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { 867fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", 868fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr, e_fmr->flags); 869fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 870fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto map_phys_fmr_exit0; 871fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 872fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_fmr_check_page_list(e_fmr, page_list, list_len); 873fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 874fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto map_phys_fmr_exit0; 875fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (iova % e_fmr->fmr_page_size) { 876fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* only whole-numbered pages */ 877fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(fmr->device, "bad iova, iova=%lx fmr_page_size=%x", 878fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick iova, e_fmr->fmr_page_size); 879fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 880fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto map_phys_fmr_exit0; 881fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 882fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (e_fmr->fmr_map_cnt >= e_fmr->fmr_max_maps) { 883fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* HCAD does not limit the maps, however trace this anyway */ 884fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_info(fmr->device, "map limit exceeded, fmr=%p " 885fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_fmr->fmr_map_cnt=%x e_fmr->fmr_max_maps=%x", 886fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); 887fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 888fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 889df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 890df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_FMR; 891df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_kpages = list_len; 8925bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.hwpage_size = e_fmr->hwpage_size; 8935bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.num_hwpages = 8945bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen list_len * e_fmr->fmr_page_size / pginfo.hwpage_size; 895df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.fmr.page_list = page_list; 8965bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.next_hwpage = 8975bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (iova & (e_fmr->fmr_page_size-1)) / pginfo.hwpage_size; 898187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo.u.fmr.fmr_pgsize = e_fmr->fmr_page_size; 899fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 9002b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen ret = ehca_rereg_mr(shca, e_fmr, (u64 *)iova, 901fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick list_len * e_fmr->fmr_page_size, 902fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); 903fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 904fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto map_phys_fmr_exit0; 905fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 906fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful reregistration */ 907fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_map_cnt++; 908fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->ib.ib_fmr.lkey = tmp_lkey; 909fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->ib.ib_fmr.rkey = tmp_rkey; 910fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 911fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 912fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickmap_phys_fmr_exit0: 913fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 914e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(fmr->device, "ret=%i fmr=%p page_list=%p list_len=%x " 9152b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen "iova=%lx", ret, fmr, page_list, list_len, iova); 916fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 917fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_map_phys_fmr() */ 918fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 919fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 920fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 921fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_unmap_fmr(struct list_head *fmr_list) 922fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 923fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 924fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_fmr *ib_fmr; 925fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = NULL; 926fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *prev_shca; 927fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_fmr; 928fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 num_fmr = 0; 929fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 unmap_fmr_cnt = 0; 930fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 931fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check all FMR belong to same SHCA, and check internal flag */ 932fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick list_for_each_entry(ib_fmr, fmr_list, list) { 933fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick prev_shca = shca; 934fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!ib_fmr) { 935fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad fmr=%p in list", ib_fmr); 936fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 937fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto unmap_fmr_exit0; 938fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 939fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca = container_of(ib_fmr->device, struct ehca_shca, 940fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_device); 941fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); 942fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((shca != prev_shca) && prev_shca) { 943fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "SHCA mismatch, shca=%p " 944fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "prev_shca=%p e_fmr=%p", 945fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca, prev_shca, e_fmr); 946fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 947fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto unmap_fmr_exit0; 948fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 949fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { 950fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "not a FMR, e_fmr=%p " 951fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_fmr->flags=%x", e_fmr, e_fmr->flags); 952fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 953fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto unmap_fmr_exit0; 954fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 955fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick num_fmr++; 956fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 957fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 958fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* loop over all FMRs to unmap */ 959fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick list_for_each_entry(ib_fmr, fmr_list, list) { 960fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick unmap_fmr_cnt++; 961fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); 962fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca = container_of(ib_fmr->device, struct ehca_shca, 963fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_device); 964fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_unmap_one_fmr(shca, e_fmr); 965fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 966fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* unmap failed, stop unmapping of rest of FMRs */ 967fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "unmap of one FMR failed, " 968fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "stop rest, e_fmr=%p num_fmr=%x " 969fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "unmap_fmr_cnt=%x lkey=%x", e_fmr, num_fmr, 970fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick unmap_fmr_cnt, e_fmr->ib.ib_fmr.lkey); 971fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto unmap_fmr_exit0; 972fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 973fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 974fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 975fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickunmap_fmr_exit0: 976fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 977e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_gen_err("ret=%i fmr_list=%p num_fmr=%x unmap_fmr_cnt=%x", 978fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, fmr_list, num_fmr, unmap_fmr_cnt); 979fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 980fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_unmap_fmr() */ 981fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 982fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 983fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 984fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_dealloc_fmr(struct ib_fmr *fmr) 985fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 986fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 987fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 988fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca = 989fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(fmr->device, struct ehca_shca, ib_device); 990fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); 991fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 992fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { 993fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", 994fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr, e_fmr->flags); 995fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 996fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto free_fmr_exit0; 997fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 998fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 999fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); 1000fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1001e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(fmr->device, "hipz_free_mr failed, h_ret=%li e_fmr=%p " 1002fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", 1003fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, e_fmr, shca->ipz_hca_handle.handle, 1004fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->ipz_mr_handle.handle, fmr->lkey); 1005a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1006fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto free_fmr_exit0; 1007fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1008fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful deregistration */ 1009fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_fmr); 1010fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1011fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1012fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickfree_fmr_exit0: 1013fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1014e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i fmr=%p", ret, fmr); 1015fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1016fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_dealloc_fmr() */ 1017fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1018fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1019fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1020fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_reg_mr(struct ehca_shca *shca, 1021fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr, 1022fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1023fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size, 1024fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int acl, 1025fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1026fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr_pginfo *pginfo, 1027fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *lkey, /*OUT*/ 1028fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *rkey) /*OUT*/ 1029fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1030fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 1031fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1032fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 hipz_acl; 10332b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 1034fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1035fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mrmw_map_acl(acl, &hipz_acl); 10365bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); 1037fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ehca_use_hp_mr == 1) 10382b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen hipz_acl |= 0x00000001; 1039fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1040fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, 1041fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (u64)iova_start, size, hipz_acl, 1042fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_pd->fw_pd, &hipzout); 1043fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1044e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%li " 1045fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); 1046a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1047fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_mr_exit0; 1048fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1049fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1050fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle = hipzout.handle; 1051fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1052fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_mr_rpages(shca, e_mr, pginfo); 1053fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1054fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_mr_exit1; 1055fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1056fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration */ 1057df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->num_kpages = pginfo->num_kpages; 1058df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->num_hwpages = pginfo->num_hwpages; 10595bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_mr->hwpage_size = pginfo->hwpage_size; 1060df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->start = iova_start; 1061df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->size = size; 1062df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->acl = acl; 1063fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *lkey = hipzout.lkey; 1064fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *rkey = hipzout.rkey; 1065fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1066fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1067fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_mr_exit1: 1068fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); 1069fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1070e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "h_ret=%li shca=%p e_mr=%p " 1071fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " 1072e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "pginfo=%p num_kpages=%lx num_hwpages=%lx ret=%i", 1073fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, shca, e_mr, iova_start, size, acl, e_pd, 1074df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen hipzout.lkey, pginfo, pginfo->num_kpages, 1075df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->num_hwpages, ret); 1076fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " 1077fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "not recoverable"); 1078fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1079fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_mr_exit0: 1080fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1081e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " 1082fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " 1083df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "num_kpages=%lx num_hwpages=%lx", 1084fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, 1085df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->num_kpages, pginfo->num_hwpages); 1086fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1087fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_mr() */ 1088fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1089fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1090fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1091fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_reg_mr_rpages(struct ehca_shca *shca, 1092fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr, 1093fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr_pginfo *pginfo) 1094fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1095fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1096fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1097fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 rnum; 1098fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 rpage; 1099fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 i; 1100fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *kpage; 1101fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 11025bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (!pginfo->num_hwpages) /* in case of fmr */ 11035bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return 0; 11045bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 1105f2d9136133de257abbd97fec6f624d3a73d1e1fdHoang-Nam Nguyen kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); 1106fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!kpage) { 1107fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "kpage alloc failed"); 1108fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -ENOMEM; 1109fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_mr_rpages_exit0; 1110fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1111fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 11125bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* max MAX_RPAGES ehca mr pages per register call */ 1113df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { 1114fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1115df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { 1116df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen rnum = pginfo->num_hwpages % MAX_RPAGES; /* last shot */ 1117fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (rnum == 0) 11184e4e74cae73325c9f8513fae3a5bd9f79458f4a7Hoang-Nam Nguyen rnum = MAX_RPAGES; /* last shot is full */ 1119fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else 11204e4e74cae73325c9f8513fae3a5bd9f79458f4a7Hoang-Nam Nguyen rnum = MAX_RPAGES; 1121fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1122187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca_set_pagebuf(pginfo, rnum, kpage); 1123187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (ret) { 1124187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_err(&shca->ib_device, "ehca_set_pagebuf " 1125e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "bad rc, ret=%i rnum=%x kpage=%p", 11265bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret, rnum, kpage); 1127187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen goto ehca_reg_mr_rpages_exit1; 1128187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 1129187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 1130187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (rnum > 1) { 1131fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rpage = virt_to_abs(kpage); 1132fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!rpage) { 1133fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "kpage=%p i=%x", 1134fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kpage, i); 1135fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EFAULT; 1136fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_mr_rpages_exit1; 1137fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1138187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } else 1139187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen rpage = *kpage; 1140fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 11415bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen h_ret = hipz_h_register_rpage_mr( 11425bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen shca->ipz_hca_handle, e_mr, 11435bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_encode_hwpage_size(pginfo->hwpage_size), 11445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 0, rpage, rnum); 1145fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1146df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { 1147fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 1148fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * check for 'registration complete'==H_SUCCESS 1149fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * and for 'page registered'==H_PAGE_REGISTERED 1150fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 1151fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1152fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "last " 1153e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "hipz_reg_rpage_mr failed, h_ret=%li " 1154fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_mr=%p i=%x hca_hndl=%lx mr_hndl=%lx" 1155fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick " lkey=%x", h_ret, e_mr, i, 1156fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca->ipz_hca_handle.handle, 1157fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle.handle, 1158fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.lkey); 1159a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1160fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick break; 1161fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else 1162fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = 0; 1163fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else if (h_ret != H_PAGE_REGISTERED) { 1164fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "hipz_reg_rpage_mr failed, " 1165e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "h_ret=%li e_mr=%p i=%x lkey=%x hca_hndl=%lx " 1166fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mr_hndl=%lx", h_ret, e_mr, i, 1167fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.lkey, 1168fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca->ipz_hca_handle.handle, 1169fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle.handle); 1170a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1171fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick break; 1172fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else 1173fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = 0; 1174fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } /* end for(i) */ 1175fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1176fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1177fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_mr_rpages_exit1: 11787e28db5d8ff63b1cabc221c5cb84a5f45752f1c2Hoang-Nam Nguyen ehca_free_fw_ctrlblock(kpage); 1179fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_mr_rpages_exit0: 1180fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1181e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p pginfo=%p " 1182df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, 1183df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo, pginfo->num_kpages, pginfo->num_hwpages); 1184fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1185fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_mr_rpages() */ 1186fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1187fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1188fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1189fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickinline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, 1190fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr, 1191fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1192fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size, 1193fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 acl, 1194fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1195fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr_pginfo *pginfo, 1196fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *lkey, /*OUT*/ 1197fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *rkey) /*OUT*/ 1198fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1199fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 1200fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1201fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 hipz_acl; 1202fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *kpage; 1203fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 rpage; 1204fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr_pginfo pginfo_save; 12052b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 1206fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1207fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mrmw_map_acl(acl, &hipz_acl); 12085bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); 1209fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1210f2d9136133de257abbd97fec6f624d3a73d1e1fdHoang-Nam Nguyen kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); 1211fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!kpage) { 1212fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "kpage alloc failed"); 1213fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -ENOMEM; 1214fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_rereg1_exit0; 1215fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1216fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1217fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick pginfo_save = *pginfo; 1218187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca_set_pagebuf(pginfo, pginfo->num_hwpages, kpage); 1219fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1220fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " 1221df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "pginfo=%p type=%x num_kpages=%lx num_hwpages=%lx " 1222df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "kpage=%p", e_mr, pginfo, pginfo->type, 1223df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->num_kpages, pginfo->num_hwpages, kpage); 1224fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_rereg1_exit1; 1225fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1226fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rpage = virt_to_abs(kpage); 1227fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!rpage) { 1228fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "kpage=%p", kpage); 1229fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EFAULT; 1230fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_rereg1_exit1; 1231fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1232fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_mr, 1233fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (u64)iova_start, size, hipz_acl, 1234fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_pd->fw_pd, rpage, &hipzout); 1235fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1236fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 1237fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * reregistration unsuccessful, try it again with the 3 hCalls, 1238fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * e.g. this is required in case H_MR_CONDITION 1239fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * (MW bound or MR is shared) 1240fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 1241fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_warn(&shca->ib_device, "hipz_h_reregister_pmr failed " 1242e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "(Rereg1), h_ret=%li e_mr=%p", h_ret, e_mr); 1243fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *pginfo = pginfo_save; 1244fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EAGAIN; 12452b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen } else if ((u64 *)hipzout.vaddr != iova_start) { 1246fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "PHYP changed iova_start in " 1247fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " 1248fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, 1249fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick hipzout.vaddr, e_mr, e_mr->ipz_mr_handle.handle, 1250fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.lkey, hipzout.lkey); 1251fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EFAULT; 1252fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else { 1253fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 1254fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * successful reregistration 1255fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * note: start and start_out are identical for eServer HCAs 1256fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 1257df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->num_kpages = pginfo->num_kpages; 1258df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->num_hwpages = pginfo->num_hwpages; 12595bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_mr->hwpage_size = pginfo->hwpage_size; 1260df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->start = iova_start; 1261df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->size = size; 1262df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_mr->acl = acl; 1263fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *lkey = hipzout.lkey; 1264fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *rkey = hipzout.rkey; 1265fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1266fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1267fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_rereg_mr_rereg1_exit1: 12687e28db5d8ff63b1cabc221c5cb84a5f45752f1c2Hoang-Nam Nguyen ehca_free_fw_ctrlblock(kpage); 1269fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_rereg_mr_rereg1_exit0: 1270fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ( ret && (ret != -EAGAIN) ) 1271e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i lkey=%x rkey=%x " 1272df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "pginfo=%p num_kpages=%lx num_hwpages=%lx", 1273df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen ret, *lkey, *rkey, pginfo, pginfo->num_kpages, 1274df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->num_hwpages); 1275fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1276fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_rereg_mr_rereg1() */ 1277fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1278fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1279fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1280fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_rereg_mr(struct ehca_shca *shca, 1281fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr, 1282fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1283fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size, 1284fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int acl, 1285fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1286fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr_pginfo *pginfo, 1287fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *lkey, 1288fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *rkey) 1289fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1290fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1291fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1292fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int rereg_1_hcall = 1; /* 1: use hipz_h_reregister_pmr directly */ 1293fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ 1294fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1295fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* first determine reregistration hCall(s) */ 1296df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen if ((pginfo->num_hwpages > MAX_RPAGES) || 1297df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (e_mr->num_hwpages > MAX_RPAGES) || 1298df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->num_hwpages > e_mr->num_hwpages)) { 1299df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen ehca_dbg(&shca->ib_device, "Rereg3 case, " 1300df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "pginfo->num_hwpages=%lx e_mr->num_hwpages=%x", 1301df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->num_hwpages, e_mr->num_hwpages); 1302fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_1_hcall = 0; 1303fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_3_hcall = 1; 1304fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1305fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1306fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (e_mr->flags & EHCA_MR_FLAG_MAXMR) { /* check for max-MR */ 1307fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_1_hcall = 0; 1308fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_3_hcall = 1; 1309fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->flags &= ~EHCA_MR_FLAG_MAXMR; 1310fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "Rereg MR for max-MR! e_mr=%p", 1311fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr); 1312fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1313fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1314fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (rereg_1_hcall) { 1315fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_rereg_mr_rereg1(shca, e_mr, iova_start, size, 1316fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick acl, e_pd, pginfo, lkey, rkey); 1317fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1318fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret == -EAGAIN) 1319fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_3_hcall = 1; 1320fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick else 1321fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_exit0; 1322fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1323fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1324fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1325fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (rereg_3_hcall) { 1326fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr save_mr; 1327fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1328fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* first deregister old MR */ 1329fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); 1330fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1331fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "hipz_free_mr failed, " 1332e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "h_ret=%li e_mr=%p hca_hndl=%lx mr_hndl=%lx " 1333fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "mr->lkey=%x", 1334fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, e_mr, shca->ipz_hca_handle.handle, 1335fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ipz_mr_handle.handle, 1336fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.lkey); 1337a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1338fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_exit0; 1339fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1340fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* clean ehca_mr_t, without changing struct ib_mr and lock */ 1341fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick save_mr = *e_mr; 1342fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_deletenew(e_mr); 1343fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1344fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* set some MR values */ 1345fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->flags = save_mr.flags; 13465bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_mr->hwpage_size = save_mr.hwpage_size; 1347fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->fmr_page_size = save_mr.fmr_page_size; 1348fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->fmr_max_pages = save_mr.fmr_max_pages; 1349fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->fmr_max_maps = save_mr.fmr_max_maps; 1350fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->fmr_map_cnt = save_mr.fmr_map_cnt; 1351fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1352fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_mr(shca, e_mr, iova_start, size, acl, 13535bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_pd, pginfo, lkey, rkey); 1354fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1355fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 offset = (u64)(&e_mr->flags) - (u64)e_mr; 1356fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick memcpy(&e_mr->flags, &(save_mr.flags), 1357fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick sizeof(struct ehca_mr) - offset); 1358fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_rereg_mr_exit0; 1359fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1360fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1361fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1362fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_rereg_mr_exit0: 1363fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1364e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " 1365fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " 1366df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "num_kpages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " 1367fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, 1368df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen acl, e_pd, pginfo, pginfo->num_kpages, *lkey, *rkey, 1369fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick rereg_1_hcall, rereg_3_hcall); 1370fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1371fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_rereg_mr() */ 1372fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1373fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1374fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1375fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_unmap_one_fmr(struct ehca_shca *shca, 1376fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_fmr) 1377fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1378fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1379fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1380fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd = 1381fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); 1382fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr save_fmr; 1383fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 tmp_lkey, tmp_rkey; 1384df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 13852b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 1386187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen struct ehca_mr save_mr; 1387fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1388187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (e_fmr->fmr_max_pages <= MAX_RPAGES) { 1389fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* 1390fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * note: after using rereg hcall with len=0, 1391fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * rereg hcall must be used again for registering pages 1392fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 1393fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, 1394fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 0, 0, e_pd->fw_pd, 0, &hipzout); 1395187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (h_ret == H_SUCCESS) { 1396fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful reregistration */ 1397fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->start = NULL; 1398fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->size = 0; 1399fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick tmp_lkey = hipzout.lkey; 1400fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick tmp_rkey = hipzout.rkey; 1401187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return 0; 1402fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1403187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* 1404187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen * should not happen, because length checked above, 1405187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen * FMRs are not shared and no MW bound to FMRs 1406187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen */ 1407187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " 1408e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "(Rereg1), h_ret=%li e_fmr=%p hca_hndl=%lx " 1409187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "mr_hndl=%lx lkey=%x lkey_out=%x", 1410187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen h_ret, e_fmr, shca->ipz_hca_handle.handle, 1411187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->ipz_mr_handle.handle, 1412187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->ib.ib_fmr.lkey, hipzout.lkey); 1413187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* try free and rereg */ 1414fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1415fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1416187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* first free old FMR */ 1417187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); 1418187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (h_ret != H_SUCCESS) { 1419187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_err(&shca->ib_device, "hipz_free_mr failed, " 1420e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "h_ret=%li e_fmr=%p hca_hndl=%lx mr_hndl=%lx " 1421187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "lkey=%x", 1422187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen h_ret, e_fmr, shca->ipz_hca_handle.handle, 1423187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->ipz_mr_handle.handle, 1424187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->ib.ib_fmr.lkey); 1425187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1426187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen goto ehca_unmap_one_fmr_exit0; 1427187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 1428187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* clean ehca_mr_t, without changing lock */ 1429187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen save_fmr = *e_fmr; 1430187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_mr_deletenew(e_fmr); 1431fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1432187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* set some MR values */ 1433187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->flags = save_fmr.flags; 14345bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_fmr->hwpage_size = save_fmr.hwpage_size; 1435187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->fmr_page_size = save_fmr.fmr_page_size; 1436187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; 1437187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; 1438187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; 1439187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->acl = save_fmr.acl; 1440fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1441187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 1442187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_FMR; 1443187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca_reg_mr(shca, e_fmr, NULL, 1444187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), 1445187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen e_fmr->acl, e_pd, &pginfo, &tmp_lkey, 1446187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen &tmp_rkey); 1447187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (ret) { 1448187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; 1449187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen memcpy(&e_fmr->flags, &(save_mr.flags), 1450187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen sizeof(struct ehca_mr) - offset); 1451fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1452fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1453fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_unmap_one_fmr_exit0: 1454fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1455e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i tmp_lkey=%x tmp_rkey=%x " 1456187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "fmr_max_pages=%x", 1457187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages); 1458fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1459fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_unmap_one_fmr() */ 1460fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1461fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1462fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1463fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_reg_smr(struct ehca_shca *shca, 1464fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_origmr, 1465fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_newmr, 1466fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1467fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int acl, 1468fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1469fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *lkey, /*OUT*/ 1470fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *rkey) /*OUT*/ 1471fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1472fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1473fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1474fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 hipz_acl; 14752b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 1476fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1477fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mrmw_map_acl(acl, &hipz_acl); 14785bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); 1479fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1480fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, 1481fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (u64)iova_start, hipz_acl, e_pd->fw_pd, 1482fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &hipzout); 1483fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1484e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%li " 1485fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "shca=%p e_origmr=%p e_newmr=%p iova_start=%p acl=%x " 1486fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_pd=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", 1487fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd, 1488fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca->ipz_hca_handle.handle, 1489fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_origmr->ipz_mr_handle.handle, 1490fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_origmr->ib.ib_mr.lkey); 1491a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen ret = ehca2ib_return_code(h_ret); 1492fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_smr_exit0; 1493fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1494fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration */ 1495df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->num_kpages = e_origmr->num_kpages; 1496df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->num_hwpages = e_origmr->num_hwpages; 14975bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_newmr->hwpage_size = e_origmr->hwpage_size; 1498df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->start = iova_start; 1499df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->size = e_origmr->size; 1500df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->acl = acl; 1501fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_newmr->ipz_mr_handle = hipzout.handle; 1502fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *lkey = hipzout.lkey; 1503fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *rkey = hipzout.rkey; 1504fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1505fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1506fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_smr_exit0: 1507fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1508e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p e_origmr=%p " 1509fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_newmr=%p iova_start=%p acl=%x e_pd=%p", 1510fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd); 1511fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1512fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_smr() */ 1513fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1514fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1515fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1516fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* register internal max-MR to internal SHCA */ 1517fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_reg_internal_maxmr( 1518fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_shca *shca, 1519fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1520fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr **e_maxmr) /*OUT*/ 1521fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1522fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 1523fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_mr; 1524fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start; 1525fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size_maxmr; 1526df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen struct ehca_mr_pginfo pginfo; 1527fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_phys_buf ib_pbuf; 1528df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_kpages; 1529df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen u32 num_hwpages; 15305bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 hw_pgsize; 1531fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1532fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr = ehca_mr_new(); 1533fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!e_mr) { 1534fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "out of memory"); 1535fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -ENOMEM; 1536fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_internal_maxmr_exit0; 1537fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1538fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->flags |= EHCA_MR_FLAG_MAXMR; 1539fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1540fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* register internal max-MR on HCA */ 1541fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick size_maxmr = (u64)high_memory - PAGE_OFFSET; 15422b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen iova_start = (u64 *)KERNELBASE; 1543fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_pbuf.addr = 0; 1544fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_pbuf.size = size_maxmr; 1545df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, 1546df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen PAGE_SIZE); 15475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hw_pgsize = ehca_get_max_hwpage_size(shca); 15485bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size_maxmr, 15495bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen hw_pgsize); 1550df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen 1551df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen memset(&pginfo, 0, sizeof(pginfo)); 1552df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.type = EHCA_MR_PGI_PHYS; 1553df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_kpages = num_kpages; 1554df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.num_hwpages = num_hwpages; 15555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo.hwpage_size = hw_pgsize; 1556df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.num_phys_buf = 1; 1557df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo.u.phy.phys_buf_array = &ib_pbuf; 1558fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1559fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, 1560fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &pginfo, &e_mr->ib.ib_mr.lkey, 1561fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &e_mr->ib.ib_mr.rkey); 1562fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1563fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "reg of internal max MR failed, " 1564df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "e_mr=%p iova_start=%p size_maxmr=%lx num_kpages=%x " 1565df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "num_hwpages=%x", e_mr, iova_start, size_maxmr, 1566df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen num_kpages, num_hwpages); 1567fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_reg_internal_maxmr_exit1; 1568fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1569fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1570fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration of all pages */ 1571fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.device = e_pd->ib_pd.device; 1572fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.pd = &e_pd->ib_pd; 1573fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_mr->ib.ib_mr.uobject = NULL; 1574fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick atomic_inc(&(e_pd->ib_pd.usecnt)); 1575fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick atomic_set(&(e_mr->ib.ib_mr.usecnt), 0); 1576fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *e_maxmr = e_mr; 1577fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1578fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1579fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_internal_maxmr_exit1: 1580fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mr_delete(e_mr); 1581fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_reg_internal_maxmr_exit0: 1582fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1583e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p e_pd=%p e_maxmr=%p", 1584fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, shca, e_pd, e_maxmr); 1585fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1586fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_internal_maxmr() */ 1587fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1588fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1589fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1590fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_reg_maxmr(struct ehca_shca *shca, 1591fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_newmr, 1592fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1593fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int acl, 1594fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_pd *e_pd, 1595fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *lkey, 1596fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *rkey) 1597fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1598fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 h_ret; 1599fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_origmr = shca->maxmr; 1600fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 hipz_acl; 16012b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen struct ehca_mr_hipzout_parms hipzout; 1602fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1603fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_mrmw_map_acl(acl, &hipz_acl); 16045bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); 1605fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1606fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, 1607fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (u64)iova_start, hipz_acl, e_pd->fw_pd, 1608fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick &hipzout); 1609fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (h_ret != H_SUCCESS) { 1610e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%li " 1611fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_origmr=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", 1612fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick h_ret, e_origmr, shca->ipz_hca_handle.handle, 1613fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_origmr->ipz_mr_handle.handle, 1614fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_origmr->ib.ib_mr.lkey); 1615a1a6ff11006c3a056cda9e8b13e7388fba3e69a1Hoang-Nam Nguyen return ehca2ib_return_code(h_ret); 1616fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1617fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* successful registration */ 1618df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->num_kpages = e_origmr->num_kpages; 1619df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->num_hwpages = e_origmr->num_hwpages; 16205bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen e_newmr->hwpage_size = e_origmr->hwpage_size; 1621df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->start = iova_start; 1622df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->size = e_origmr->size; 1623df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen e_newmr->acl = acl; 1624fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_newmr->ipz_mr_handle = hipzout.handle; 1625fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *lkey = hipzout.lkey; 1626fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *rkey = hipzout.rkey; 1627fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1628fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_reg_maxmr() */ 1629fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1630fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1631fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1632fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_dereg_internal_maxmr(struct ehca_shca *shca) 1633fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1634fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret; 1635fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ehca_mr *e_maxmr; 1636fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_pd *ib_pd; 1637fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1638fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!shca->maxmr) { 1639fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "bad call, shca=%p", shca); 1640fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EINVAL; 1641fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_dereg_internal_maxmr_exit0; 1642fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1643fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1644fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_maxmr = shca->maxmr; 1645fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ib_pd = e_maxmr->ib.ib_mr.pd; 1646fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca->maxmr = NULL; /* remove internal max-MR indication from SHCA */ 1647fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1648fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = ehca_dereg_mr(&e_maxmr->ib.ib_mr); 1649fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) { 1650fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_err(&shca->ib_device, "dereg internal max-MR failed, " 1651e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes "ret=%i e_maxmr=%p shca=%p lkey=%x", 1652fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, e_maxmr, shca, e_maxmr->ib.ib_mr.lkey); 1653fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick shca->maxmr = e_maxmr; 1654fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick goto ehca_dereg_internal_maxmr_exit0; 1655fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1656fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1657fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick atomic_dec(&ib_pd->usecnt); 1658fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1659fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickehca_dereg_internal_maxmr_exit0: 1660fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ret) 1661e37221928bf685d63ba5319746eafe463d61e330Joachim Fenkes ehca_err(&shca->ib_device, "ret=%i shca=%p shca->maxmr=%p", 1662fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret, shca, shca->maxmr); 1663fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1664fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_dereg_internal_maxmr() */ 1665fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1666fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1667fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1668fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* 1669fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * check physical buffer array of MR verbs for validness and 1670fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * calculates MR size 1671fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 1672fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array, 1673fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int num_phys_buf, 1674fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start, 1675fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *size) 1676fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1677fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_phys_buf *pbuf = phys_buf_array; 1678fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 size_count = 0; 1679fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 i; 1680fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1681fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (num_phys_buf == 0) { 1682fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad phys buf array len, num_phys_buf=0"); 1683fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1684fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1685fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* check first buffer */ 1686fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((u64)iova_start & ~PAGE_MASK) != (pbuf->addr & ~PAGE_MASK)) { 1687fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("iova_start/addr mismatch, iova_start=%p " 1688fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "pbuf->addr=%lx pbuf->size=%lx", 1689fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick iova_start, pbuf->addr, pbuf->size); 1690fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1691fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1692fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((pbuf->addr + pbuf->size) % PAGE_SIZE) && 1693fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (num_phys_buf > 1)) { 1694fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("addr/size mismatch in 1st buf, pbuf->addr=%lx " 1695fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "pbuf->size=%lx", pbuf->addr, pbuf->size); 1696fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1697fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1698fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1699fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick for (i = 0; i < num_phys_buf; i++) { 1700fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((i > 0) && (pbuf->addr % PAGE_SIZE)) { 1701fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad address, i=%x pbuf->addr=%lx " 1702fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "pbuf->size=%lx", 1703fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick i, pbuf->addr, pbuf->size); 1704fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1705fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1706fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (((i > 0) && /* not 1st */ 1707fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (i < (num_phys_buf - 1)) && /* not last */ 1708fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick (pbuf->size % PAGE_SIZE)) || (pbuf->size == 0)) { 1709fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad size, i=%x pbuf->size=%lx", 1710fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick i, pbuf->size); 1711fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1712fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1713fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick size_count += pbuf->size; 1714fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick pbuf++; 1715fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1716fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1717fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *size = size_count; 1718fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1719fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mr_chk_buf_and_calc_size() */ 1720fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1721fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1722fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1723fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* check page list of map FMR verb for validness */ 1724fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_fmr_check_page_list(struct ehca_mr *e_fmr, 1725fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *page_list, 1726fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int list_len) 1727fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1728fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 i; 1729fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *page; 1730fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1731fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((list_len == 0) || (list_len > e_fmr->fmr_max_pages)) { 1732fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad list_len, list_len=%x " 1733fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "e_fmr->fmr_max_pages=%x fmr=%p", 1734fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick list_len, e_fmr->fmr_max_pages, e_fmr); 1735fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1736fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1737fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1738fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* each page must be aligned */ 1739fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick page = page_list; 1740fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick for (i = 0; i < list_len; i++) { 1741fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*page % e_fmr->fmr_page_size) { 1742fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad page, i=%x *page=%lx page=%p fmr=%p " 1743fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick "fmr_page_size=%x", i, *page, page, e_fmr, 1744fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick e_fmr->fmr_page_size); 1745fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -EINVAL; 1746fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1747fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick page++; 1748fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1749fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1750fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 1751fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_fmr_check_page_list() */ 1752fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1753fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 1754fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1755187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen/* PAGE_SIZE >= pginfo->hwpage_size */ 1756187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyenstatic int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, 1757187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 number, 1758187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 *kpage) 1759fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1760fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1761fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_umem_chunk *prev_chunk; 1762fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick struct ib_umem_chunk *chunk; 1763187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 pgaddr; 1764fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 i = 0; 1765fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 j = 0; 17665bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int hwpages_per_kpage = PAGE_SIZE / pginfo->hwpage_size; 1767fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 1768187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* loop over desired chunk entries */ 1769187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen chunk = pginfo->u.usr.next_chunk; 1770187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen prev_chunk = pginfo->u.usr.next_chunk; 1771187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen list_for_each_entry_continue( 1772187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen chunk, (&(pginfo->u.usr.region->chunk_list)), list) { 1773187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { 1774187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pgaddr = page_to_pfn(chunk->page_list[i].page) 1775187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen << PAGE_SHIFT ; 1776187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen *kpage = phys_to_abs(pgaddr + 1777187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (pginfo->next_hwpage * 17785bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->hwpage_size)); 1779fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ( !(*kpage) ) { 1780187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_gen_err("pgaddr=%lx " 1781187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "chunk->page_list[i]=%lx " 1782187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "i=%x next_hwpage=%lx", 1783187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pgaddr, (u64)sg_dma_address( 1784187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen &chunk->page_list[i]), 1785187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen i, pginfo->next_hwpage); 1786187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return -EFAULT; 1787fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1788df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->hwpage_cnt)++; 1789df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->next_hwpage)++; 1790fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kpage++; 17915bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pginfo->next_hwpage % hwpages_per_kpage == 0) { 1792df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->kpage_cnt)++; 1793187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (pginfo->u.usr.next_nmap)++; 1794df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->next_hwpage = 0; 1795187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen i++; 1796fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1797187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen j++; 1798187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (j >= number) break; 1799fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1800187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if ((pginfo->u.usr.next_nmap >= chunk->nmap) && 1801187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (j >= number)) { 1802187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->u.usr.next_nmap = 0; 1803187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen prev_chunk = chunk; 1804187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 1805187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { 1806187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->u.usr.next_nmap = 0; 1807187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen prev_chunk = chunk; 1808187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } else if (j >= number) 1809187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 1810187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen else 1811187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen prev_chunk = chunk; 1812fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1813187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->u.usr.next_chunk = 1814187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen list_prepare_entry(prev_chunk, 1815187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (&(pginfo->u.usr.region->chunk_list)), 1816187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen list); 1817fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 1818187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen} 1819fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 18205bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen/* 18215bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * check given pages for contiguous layout 18225bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * last page addr is returned in prev_pgaddr for further check 18235bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen */ 18245bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenstatic int ehca_check_kpages_per_ate(struct scatterlist *page_list, 18255bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int start_idx, int end_idx, 18265bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 *prev_pgaddr) 18275bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen{ 18285bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int t; 18295bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen for (t = start_idx; t <= end_idx; t++) { 18305bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 pgaddr = page_to_pfn(page_list[t].page) << PAGE_SHIFT; 18315bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_dbg("chunk_page=%lx value=%016lx", pgaddr, 18325bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *(u64 *)abs_to_virt(phys_to_abs(pgaddr))); 18335bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pgaddr - PAGE_SIZE != *prev_pgaddr) { 18345bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_err("uncontiguous page found pgaddr=%lx " 18355bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "prev_pgaddr=%lx page_list_i=%x", 18365bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgaddr, *prev_pgaddr, t); 18375bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return -EINVAL; 18385bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 18395bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *prev_pgaddr = pgaddr; 18405bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 18415bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return 0; 18425bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen} 18435bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 18445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen/* PAGE_SIZE < pginfo->hwpage_size */ 18455bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenstatic int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo, 18465bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u32 number, 18475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 *kpage) 18485bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen{ 18495bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int ret = 0; 18505bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen struct ib_umem_chunk *prev_chunk; 18515bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen struct ib_umem_chunk *chunk; 18525bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 pgaddr, prev_pgaddr; 18535bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u32 i = 0; 18545bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u32 j = 0; 18555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE; 18565bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen int nr_kpages = kpages_per_hwpage; 18575bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 18585bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* loop over desired chunk entries */ 18595bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen chunk = pginfo->u.usr.next_chunk; 18605bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev_chunk = pginfo->u.usr.next_chunk; 18615bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen list_for_each_entry_continue( 18625bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen chunk, (&(pginfo->u.usr.region->chunk_list)), list) { 18635bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { 18645bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (nr_kpages == kpages_per_hwpage) { 18655bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgaddr = ( page_to_pfn(chunk->page_list[i].page) 18665bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen << PAGE_SHIFT ); 18675bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *kpage = phys_to_abs(pgaddr); 18685bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if ( !(*kpage) ) { 18695bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_err("pgaddr=%lx i=%x", 18705bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgaddr, i); 18715bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret = -EFAULT; 18725bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return ret; 18735bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 18745bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* 18755bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * The first page in a hwpage must be aligned; 18765bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen * the first MR page is exempt from this rule. 18775bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen */ 18785bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pgaddr & (pginfo->hwpage_size - 1)) { 18795bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pginfo->hwpage_cnt) { 18805bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_err( 18815bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "invalid alignment " 18825bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "pgaddr=%lx i=%x " 18835bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "mr_pgsize=%lx", 18845bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgaddr, i, 18855bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->hwpage_size); 18865bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret = -EFAULT; 18875bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return ret; 18885bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 18895bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* first MR page */ 18905bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt = 18915bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pgaddr & 18925bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->hwpage_size - 1)) >> 18935bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen PAGE_SHIFT; 18945bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen nr_kpages -= pginfo->kpage_cnt; 18955bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *kpage = phys_to_abs( 18965bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pgaddr & 18975bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ~(pginfo->hwpage_size - 1)); 18985bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 18995bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_dbg("kpage=%lx chunk_page=%lx " 19005bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "value=%016lx", *kpage, pgaddr, 19015bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *(u64 *)abs_to_virt( 19025bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen phys_to_abs(pgaddr))); 19035bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev_pgaddr = pgaddr; 19045bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen i++; 19055bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt++; 19065bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_nmap++; 19075bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen nr_kpages--; 19085bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (!nr_kpages) 19095bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen goto next_kpage; 19105bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen continue; 19115bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 19125bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (i + nr_kpages > chunk->nmap) { 19135bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret = ehca_check_kpages_per_ate( 19145bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen chunk->page_list, i, 19155bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen chunk->nmap - 1, &prev_pgaddr); 19165bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (ret) return ret; 19175bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt += chunk->nmap - i; 19185bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_nmap += chunk->nmap - i; 19195bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen nr_kpages -= chunk->nmap - i; 19205bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen break; 19215bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 19225bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 19235bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret = ehca_check_kpages_per_ate(chunk->page_list, i, 19245bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen i + nr_kpages - 1, 19255bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen &prev_pgaddr); 19265bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (ret) return ret; 19275bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen i += nr_kpages; 19285bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt += nr_kpages; 19295bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_nmap += nr_kpages; 19305bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyennext_kpage: 19315bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen nr_kpages = kpages_per_hwpage; 19325bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->hwpage_cnt)++; 19335bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen kpage++; 19345bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen j++; 19355bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (j >= number) break; 19365bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 19375bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if ((pginfo->u.usr.next_nmap >= chunk->nmap) && 19385bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (j >= number)) { 19395bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_nmap = 0; 19405bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev_chunk = chunk; 19415bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen break; 19425bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { 19435bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_nmap = 0; 19445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev_chunk = chunk; 19455bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else if (j >= number) 19465bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen break; 19475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen else 19485bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev_chunk = chunk; 19495bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 19505bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.usr.next_chunk = 19515bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen list_prepare_entry(prev_chunk, 19525bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (&(pginfo->u.usr.region->chunk_list)), 19535bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen list); 19545bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return ret; 19555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen} 19565bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen 1957187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyenint ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, 1958187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 number, 1959187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 *kpage) 1960fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 1961fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int ret = 0; 1962187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen struct ib_phys_buf *pbuf; 1963187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 num_hw, offs_hw; 1964187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 i = 0; 1965187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 1966187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* loop over desired phys_buf_array entries */ 1967187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen while (i < number) { 1968187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pbuf = pginfo->u.phy.phys_buf_array + pginfo->u.phy.next_buf; 19695bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen num_hw = NUM_CHUNKS((pbuf->addr % pginfo->hwpage_size) + 19705bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pbuf->size, pginfo->hwpage_size); 19715bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen offs_hw = (pbuf->addr & ~(pginfo->hwpage_size - 1)) / 19725bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->hwpage_size; 1973187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen while (pginfo->next_hwpage < offs_hw + num_hw) { 1974187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* sanity check */ 1975187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if ((pginfo->kpage_cnt >= pginfo->num_kpages) || 1976187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (pginfo->hwpage_cnt >= pginfo->num_hwpages)) { 1977187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ehca_gen_err("kpage_cnt >= num_kpages, " 1978187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "kpage_cnt=%lx num_kpages=%lx " 1979187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "hwpage_cnt=%lx " 1980187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "num_hwpages=%lx i=%x", 1981187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->kpage_cnt, 1982187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->num_kpages, 1983187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->hwpage_cnt, 1984187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->num_hwpages, i); 1985187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return -EFAULT; 1986187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 1987187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen *kpage = phys_to_abs( 19885bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pbuf->addr & ~(pginfo->hwpage_size - 1)) + 19895bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->next_hwpage * pginfo->hwpage_size)); 1990187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if ( !(*kpage) && pbuf->addr ) { 19915bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_err("pbuf->addr=%lx pbuf->size=%lx " 1992187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen "next_hwpage=%lx", pbuf->addr, 19935bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pbuf->size, pginfo->next_hwpage); 1994187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return -EFAULT; 1995fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 1996df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->hwpage_cnt)++; 1997df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->next_hwpage)++; 19985bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (PAGE_SIZE >= pginfo->hwpage_size) { 19995bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pginfo->next_hwpage % 20005bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (PAGE_SIZE / pginfo->hwpage_size) == 0) 20015bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->kpage_cnt)++; 20025bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else 20035bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt += pginfo->hwpage_size / 20045bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen PAGE_SIZE; 2005187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen kpage++; 2006187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen i++; 2007187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (i >= number) break; 2008fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 2009187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if (pginfo->next_hwpage >= offs_hw + num_hw) { 2010187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen (pginfo->u.phy.next_buf)++; 2011187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->next_hwpage = 0; 2012187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 2013187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 2014187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return ret; 2015187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen} 2016187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 2017187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyenint ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, 2018187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 number, 2019187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 *kpage) 2020187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen{ 2021187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen int ret = 0; 2022187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 *fmrlist; 2023187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 i; 2024187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 2025187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen /* loop over desired page_list entries */ 2026187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; 2027187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen for (i = 0; i < number; i++) { 20285bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *kpage = phys_to_abs((*fmrlist & ~(pginfo->hwpage_size - 1)) + 20295bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->next_hwpage * pginfo->hwpage_size); 2030187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen if ( !(*kpage) ) { 2031fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("*fmrlist=%lx fmrlist=%p " 2032df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen "next_listelem=%lx next_hwpage=%lx", 2033187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen *fmrlist, fmrlist, 2034187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen pginfo->u.fmr.next_listelem, 2035df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen pginfo->next_hwpage); 2036187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return -EFAULT; 2037fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 2038df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen (pginfo->hwpage_cnt)++; 20395bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pginfo->u.fmr.fmr_pgsize >= pginfo->hwpage_size) { 20405bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (pginfo->next_hwpage % 20415bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->u.fmr.fmr_pgsize / 20425bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->hwpage_size) == 0) { 20435bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->kpage_cnt)++; 20445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->u.fmr.next_listelem)++; 20455bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen fmrlist++; 20465bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->next_hwpage = 0; 20475bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else 20485bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen (pginfo->next_hwpage)++; 20495bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } else { 20505bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen unsigned int cnt_per_hwpage = pginfo->hwpage_size / 20515bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.fmr.fmr_pgsize; 20525bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen unsigned int j; 20535bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 prev = *kpage; 20545bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen /* check if adrs are contiguous */ 20555bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen for (j = 1; j < cnt_per_hwpage; j++) { 20565bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen u64 p = phys_to_abs(fmrlist[j] & 20575bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ~(pginfo->hwpage_size - 1)); 20585bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen if (prev + pginfo->u.fmr.fmr_pgsize != p) { 20595bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_gen_err("uncontiguous fmr pages " 20605bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "found prev=%lx p=%lx " 20615bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen "idx=%x", prev, p, i + j); 20625bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen return -EINVAL; 20635bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 20645bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen prev = p; 20655bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen } 20665bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->kpage_cnt += cnt_per_hwpage; 20675bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen pginfo->u.fmr.next_listelem += cnt_per_hwpage; 20685bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen fmrlist += cnt_per_hwpage; 2069fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 20705bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen kpage++; 2071187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen } 2072187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen return ret; 2073187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen} 2074187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 2075187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen/* setup page buffer from page info */ 2076187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyenint ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, 2077187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u32 number, 2078187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen u64 *kpage) 2079187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen{ 2080187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen int ret; 2081187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen 2082187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen switch (pginfo->type) { 2083187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen case EHCA_MR_PGI_PHYS: 2084187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca_set_pagebuf_phys(pginfo, number, kpage); 2085187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 2086187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen case EHCA_MR_PGI_USER: 20875bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ret = PAGE_SIZE >= pginfo->hwpage_size ? 20885bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_set_pagebuf_user1(pginfo, number, kpage) : 20895bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen ehca_set_pagebuf_user2(pginfo, number, kpage); 2090187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 2091187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen case EHCA_MR_PGI_FMR: 2092187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen ret = ehca_set_pagebuf_fmr(pginfo, number, kpage); 2093187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 2094187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen default: 2095fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_err("bad pginfo->type=%x", pginfo->type); 2096fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ret = -EFAULT; 2097187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen break; 2098fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 2099fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return ret; 2100187c72e31f92791ec70395b80aa9883f2edad97fHoang-Nam Nguyen} /* end ehca_set_pagebuf() */ 2101fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2102fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 2103fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2104fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* 2105fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * check MR if it is a max-MR, i.e. uses whole memory 2106fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * in case it's a max-MR 1 is returned, else 0 2107fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 2108fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_mr_is_maxmr(u64 size, 2109fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u64 *iova_start) 2110fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2111fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick /* a MR is treated as max-MR only if it fits following: */ 2112fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if ((size == ((u64)high_memory - PAGE_OFFSET)) && 21132b94397adc68c2f0f851539884cc426e03444a26Hoang-Nam Nguyen (iova_start == (void *)KERNELBASE)) { 2114fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick ehca_gen_dbg("this is a max-MR"); 2115fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 1; 2116fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } else 2117fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 2118fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mr_is_maxmr() */ 2119fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2120fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 2121fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2122fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* map access control for MR/MW. This routine is used for MR and MW. */ 2123fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickvoid ehca_mrmw_map_acl(int ib_acl, 2124fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick u32 *hipz_acl) 2125fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2126fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl = 0; 2127fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ib_acl & IB_ACCESS_REMOTE_READ) 2128fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl |= HIPZ_ACCESSCTRL_R_READ; 2129fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ib_acl & IB_ACCESS_REMOTE_WRITE) 2130fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl |= HIPZ_ACCESSCTRL_R_WRITE; 2131fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ib_acl & IB_ACCESS_REMOTE_ATOMIC) 2132fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl |= HIPZ_ACCESSCTRL_R_ATOMIC; 2133fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ib_acl & IB_ACCESS_LOCAL_WRITE) 2134fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl |= HIPZ_ACCESSCTRL_L_WRITE; 2135fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (ib_acl & IB_ACCESS_MW_BIND) 2136fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *hipz_acl |= HIPZ_ACCESSCTRL_MW_BIND; 2137fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mrmw_map_acl() */ 2138fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2139fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 2140fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2141fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* sets page size in hipz access control for MR/MW. */ 21425bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyenvoid ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl) /*INOUT*/ 2143fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 21445bb7d9290cd23a55906e4fe7a7fedecf29468c81Hoang-Nam Nguyen *hipz_acl |= (ehca_encode_hwpage_size(pgsize) << 24); 2145fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mrmw_set_pgsize_hipz_acl() */ 2146fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2147fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 2148fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2149fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* 2150fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * reverse map access control for MR/MW. 2151fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * This routine is used for MR and MW. 2152fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 2153fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickvoid ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, 2154fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick int *ib_acl) /*OUT*/ 2155fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2156fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl = 0; 2157fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*hipz_acl & HIPZ_ACCESSCTRL_R_READ) 2158fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl |= IB_ACCESS_REMOTE_READ; 2159fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*hipz_acl & HIPZ_ACCESSCTRL_R_WRITE) 2160fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl |= IB_ACCESS_REMOTE_WRITE; 2161fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*hipz_acl & HIPZ_ACCESSCTRL_R_ATOMIC) 2162fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl |= IB_ACCESS_REMOTE_ATOMIC; 2163fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*hipz_acl & HIPZ_ACCESSCTRL_L_WRITE) 2164fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl |= IB_ACCESS_LOCAL_WRITE; 2165fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (*hipz_acl & HIPZ_ACCESSCTRL_MW_BIND) 2166fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick *ib_acl |= IB_ACCESS_MW_BIND; 2167fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mrmw_reverse_map_acl() */ 2168fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2169fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2170fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/*----------------------------------------------------------------------*/ 2171fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2172fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick/* 2173fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * MR destructor and constructor 2174fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, 2175fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick * except struct ib_mr and spinlock 2176fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick */ 2177fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickvoid ehca_mr_deletenew(struct ehca_mr *mr) 2178fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2179df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->flags = 0; 2180df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->num_kpages = 0; 2181df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->num_hwpages = 0; 2182df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->acl = 0; 2183df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->start = NULL; 2184fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr->fmr_page_size = 0; 2185fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr->fmr_max_pages = 0; 2186df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->fmr_max_maps = 0; 2187df17bfd4a030f7d986de14210f4b21876a7a2989Hoang-Nam Nguyen mr->fmr_map_cnt = 0; 2188fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); 2189fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick memset(&mr->galpas, 0, sizeof(mr->galpas)); 2190fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} /* end ehca_mr_deletenew() */ 2191fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2192fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickint ehca_init_mrmw_cache(void) 2193fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2194fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_cache = kmem_cache_create("ehca_cache_mr", 2195fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick sizeof(struct ehca_mr), 0, 2196fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick SLAB_HWCACHE_ALIGN, 219720c2df83d25c6a95affe6157a4c9cac4cf5ffaacPaul Mundt NULL); 2198fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!mr_cache) 2199fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -ENOMEM; 2200fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mw_cache = kmem_cache_create("ehca_cache_mw", 2201fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick sizeof(struct ehca_mw), 0, 2202fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick SLAB_HWCACHE_ALIGN, 220320c2df83d25c6a95affe6157a4c9cac4cf5ffaacPaul Mundt NULL); 2204fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (!mw_cache) { 2205fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kmem_cache_destroy(mr_cache); 2206fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick mr_cache = NULL; 2207fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return -ENOMEM; 2208fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick } 2209fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick return 0; 2210fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 2211fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick 2212fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schickvoid ehca_cleanup_mrmw_cache(void) 2213fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick{ 2214fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mr_cache) 2215fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kmem_cache_destroy(mr_cache); 2216fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick if (mw_cache) 2217fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick kmem_cache_destroy(mw_cache); 2218fab97220c9e409a98b1956ba677ddd2dd43b0b95Heiko J Schick} 2219