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1/*2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.4 *5 * This software is available to you under a choice of one of two6 * licenses. You may choose to be licensed under the terms of the GNU7 * General Public License (GPL) Version 2, available from the file8 * COPYING in the main directory of this source tree, or the9 * OpenIB.org BSD license below:10 *11 * Redistribution and use in source and binary forms, with or12 * without modification, are permitted provided that the following13 * conditions are met:14 *15 * - Redistributions of source code must retain the above16 * copyright notice, this list of conditions and the following17 * disclaimer.18 *19 * - Redistributions in binary form must reproduce the above20 * copyright notice, this list of conditions and the following21 * disclaimer in the documentation and/or other materials22 * provided with the distribution.23 *24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE31 * SOFTWARE.32 */33 34#include <linux/string.h>35#include <linux/slab.h>36 37#include "mthca_profile.h"38 39enum {40 MTHCA_RES_QP,41 MTHCA_RES_EEC,42 MTHCA_RES_SRQ,43 MTHCA_RES_CQ,44 MTHCA_RES_EQP,45 MTHCA_RES_EEEC,46 MTHCA_RES_EQ,47 MTHCA_RES_RDB,48 MTHCA_RES_MCG,49 MTHCA_RES_MPT,50 MTHCA_RES_MTT,51 MTHCA_RES_UAR,52 MTHCA_RES_UDAV,53 MTHCA_RES_UARC,54 MTHCA_RES_NUM55};56 57enum {58 MTHCA_NUM_EQS = 32,59 MTHCA_NUM_PDS = 1 << 1560};61 62s64 mthca_make_profile(struct mthca_dev *dev,63 struct mthca_profile *request,64 struct mthca_dev_lim *dev_lim,65 struct mthca_init_hca_param *init_hca)66{67 struct mthca_resource {68 u64 size;69 u64 start;70 int type;71 int num;72 int log_num;73 };74 75 u64 mem_base, mem_avail;76 s64 total_size = 0;77 struct mthca_resource *profile;78 int i, j;79 80 profile = kcalloc(MTHCA_RES_NUM, sizeof(*profile), GFP_KERNEL);81 if (!profile)82 return -ENOMEM;83 84 profile[MTHCA_RES_QP].size = dev_lim->qpc_entry_sz;85 profile[MTHCA_RES_EEC].size = dev_lim->eec_entry_sz;86 profile[MTHCA_RES_SRQ].size = dev_lim->srq_entry_sz;87 profile[MTHCA_RES_CQ].size = dev_lim->cqc_entry_sz;88 profile[MTHCA_RES_EQP].size = dev_lim->eqpc_entry_sz;89 profile[MTHCA_RES_EEEC].size = dev_lim->eeec_entry_sz;90 profile[MTHCA_RES_EQ].size = dev_lim->eqc_entry_sz;91 profile[MTHCA_RES_RDB].size = MTHCA_RDB_ENTRY_SIZE;92 profile[MTHCA_RES_MCG].size = MTHCA_MGM_ENTRY_SIZE;93 profile[MTHCA_RES_MPT].size = dev_lim->mpt_entry_sz;94 profile[MTHCA_RES_MTT].size = dev->limits.mtt_seg_size;95 profile[MTHCA_RES_UAR].size = dev_lim->uar_scratch_entry_sz;96 profile[MTHCA_RES_UDAV].size = MTHCA_AV_SIZE;97 profile[MTHCA_RES_UARC].size = request->uarc_size;98 99 profile[MTHCA_RES_QP].num = request->num_qp;100 profile[MTHCA_RES_SRQ].num = request->num_srq;101 profile[MTHCA_RES_EQP].num = request->num_qp;102 profile[MTHCA_RES_RDB].num = request->num_qp * request->rdb_per_qp;103 profile[MTHCA_RES_CQ].num = request->num_cq;104 profile[MTHCA_RES_EQ].num = MTHCA_NUM_EQS;105 profile[MTHCA_RES_MCG].num = request->num_mcg;106 profile[MTHCA_RES_MPT].num = request->num_mpt;107 profile[MTHCA_RES_MTT].num = request->num_mtt;108 profile[MTHCA_RES_UAR].num = request->num_uar;109 profile[MTHCA_RES_UARC].num = request->num_uar;110 profile[MTHCA_RES_UDAV].num = request->num_udav;111 112 for (i = 0; i < MTHCA_RES_NUM; ++i) {113 profile[i].type = i;114 profile[i].log_num = max(ffs(profile[i].num) - 1, 0);115 profile[i].size *= profile[i].num;116 if (mthca_is_memfree(dev))117 profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);118 }119 120 if (mthca_is_memfree(dev)) {121 mem_base = 0;122 mem_avail = dev_lim->hca.arbel.max_icm_sz;123 } else {124 mem_base = dev->ddr_start;125 mem_avail = dev->fw.tavor.fw_start - dev->ddr_start;126 }127 128 /*129 * Sort the resources in decreasing order of size. Since they130 * all have sizes that are powers of 2, we'll be able to keep131 * resources aligned to their size and pack them without gaps132 * using the sorted order.133 */134 for (i = MTHCA_RES_NUM; i > 0; --i)135 for (j = 1; j < i; ++j) {136 if (profile[j].size > profile[j - 1].size)137 swap(profile[j], profile[j - 1]);138 }139 140 for (i = 0; i < MTHCA_RES_NUM; ++i) {141 if (profile[i].size) {142 profile[i].start = mem_base + total_size;143 total_size += profile[i].size;144 }145 if (total_size > mem_avail) {146 mthca_err(dev, "Profile requires 0x%llx bytes; "147 "won't fit in 0x%llx bytes of context memory.\n",148 (unsigned long long) total_size,149 (unsigned long long) mem_avail);150 kfree(profile);151 return -ENOMEM;152 }153 154 if (profile[i].size)155 mthca_dbg(dev, "profile[%2d]--%2d/%2d @ 0x%16llx "156 "(size 0x%8llx)\n",157 i, profile[i].type, profile[i].log_num,158 (unsigned long long) profile[i].start,159 (unsigned long long) profile[i].size);160 }161 162 if (mthca_is_memfree(dev))163 mthca_dbg(dev, "HCA context memory: reserving %d KB\n",164 (int) (total_size >> 10));165 else166 mthca_dbg(dev, "HCA memory: allocated %d KB/%d KB (%d KB free)\n",167 (int) (total_size >> 10), (int) (mem_avail >> 10),168 (int) ((mem_avail - total_size) >> 10));169 170 for (i = 0; i < MTHCA_RES_NUM; ++i) {171 switch (profile[i].type) {172 case MTHCA_RES_QP:173 dev->limits.num_qps = profile[i].num;174 init_hca->qpc_base = profile[i].start;175 init_hca->log_num_qps = profile[i].log_num;176 break;177 case MTHCA_RES_EEC:178 dev->limits.num_eecs = profile[i].num;179 init_hca->eec_base = profile[i].start;180 init_hca->log_num_eecs = profile[i].log_num;181 break;182 case MTHCA_RES_SRQ:183 dev->limits.num_srqs = profile[i].num;184 init_hca->srqc_base = profile[i].start;185 init_hca->log_num_srqs = profile[i].log_num;186 break;187 case MTHCA_RES_CQ:188 dev->limits.num_cqs = profile[i].num;189 init_hca->cqc_base = profile[i].start;190 init_hca->log_num_cqs = profile[i].log_num;191 break;192 case MTHCA_RES_EQP:193 init_hca->eqpc_base = profile[i].start;194 break;195 case MTHCA_RES_EEEC:196 init_hca->eeec_base = profile[i].start;197 break;198 case MTHCA_RES_EQ:199 dev->limits.num_eqs = profile[i].num;200 init_hca->eqc_base = profile[i].start;201 init_hca->log_num_eqs = profile[i].log_num;202 break;203 case MTHCA_RES_RDB:204 for (dev->qp_table.rdb_shift = 0;205 request->num_qp << dev->qp_table.rdb_shift < profile[i].num;206 ++dev->qp_table.rdb_shift)207 ; /* nothing */208 dev->qp_table.rdb_base = (u32) profile[i].start;209 init_hca->rdb_base = profile[i].start;210 break;211 case MTHCA_RES_MCG:212 dev->limits.num_mgms = profile[i].num >> 1;213 dev->limits.num_amgms = profile[i].num >> 1;214 init_hca->mc_base = profile[i].start;215 init_hca->log_mc_entry_sz = ffs(MTHCA_MGM_ENTRY_SIZE) - 1;216 init_hca->log_mc_table_sz = profile[i].log_num;217 init_hca->mc_hash_sz = 1 << (profile[i].log_num - 1);218 break;219 case MTHCA_RES_MPT:220 dev->limits.num_mpts = profile[i].num;221 dev->mr_table.mpt_base = profile[i].start;222 init_hca->mpt_base = profile[i].start;223 init_hca->log_mpt_sz = profile[i].log_num;224 break;225 case MTHCA_RES_MTT:226 dev->limits.num_mtt_segs = profile[i].num;227 dev->mr_table.mtt_base = profile[i].start;228 init_hca->mtt_base = profile[i].start;229 init_hca->mtt_seg_sz = ffs(dev->limits.mtt_seg_size) - 7;230 break;231 case MTHCA_RES_UAR:232 dev->limits.num_uars = profile[i].num;233 init_hca->uar_scratch_base = profile[i].start;234 break;235 case MTHCA_RES_UDAV:236 dev->av_table.ddr_av_base = profile[i].start;237 dev->av_table.num_ddr_avs = profile[i].num;238 break;239 case MTHCA_RES_UARC:240 dev->uar_table.uarc_size = request->uarc_size;241 dev->uar_table.uarc_base = profile[i].start;242 init_hca->uarc_base = profile[i].start;243 init_hca->log_uarc_sz = ffs(request->uarc_size) - 13;244 init_hca->log_uar_sz = ffs(request->num_uar) - 1;245 break;246 default:247 break;248 }249 }250 251 /*252 * PDs don't take any HCA memory, but we assign them as part253 * of the HCA profile anyway.254 */255 dev->limits.num_pds = MTHCA_NUM_PDS;256 257 if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT &&258 init_hca->log_mpt_sz > 23) {259 mthca_warn(dev, "MPT table too large (requested size 2^%d >= 2^24)\n",260 init_hca->log_mpt_sz);261 mthca_warn(dev, "Disabling memory key throughput optimization.\n");262 dev->mthca_flags &= ~MTHCA_FLAG_SINAI_OPT;263 }264 265 /*266 * For Tavor, FMRs use ioremapped PCI memory. For 32 bit267 * systems it may use too much vmalloc space to map all MTT268 * memory, so we reserve some MTTs for FMR access, taking them269 * out of the MR pool. They don't use additional memory, but270 * we assign them as part of the HCA profile anyway.271 */272 if (mthca_is_memfree(dev) || BITS_PER_LONG == 64)273 dev->limits.fmr_reserved_mtts = 0;274 else275 dev->limits.fmr_reserved_mtts = request->fmr_reserved_mtts;276 277 kfree(profile);278 return total_size;279}280