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Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_profile.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_profile.c266
1 files changed, 266 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.c b/drivers/infiniband/hw/mthca/mthca_profile.c
new file mode 100644
index 000000000000..7881a8a919ca
--- /dev/null
+++ b/drivers/infiniband/hw/mthca/mthca_profile.c
@@ -0,0 +1,266 @@
1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 * $Id: mthca_profile.c 1349 2004-12-16 21:09:43Z roland $
33 */
34
35#include <linux/module.h>
36#include <linux/moduleparam.h>
37
38#include "mthca_profile.h"
39
40enum {
41 MTHCA_RES_QP,
42 MTHCA_RES_EEC,
43 MTHCA_RES_SRQ,
44 MTHCA_RES_CQ,
45 MTHCA_RES_EQP,
46 MTHCA_RES_EEEC,
47 MTHCA_RES_EQ,
48 MTHCA_RES_RDB,
49 MTHCA_RES_MCG,
50 MTHCA_RES_MPT,
51 MTHCA_RES_MTT,
52 MTHCA_RES_UAR,
53 MTHCA_RES_UDAV,
54 MTHCA_RES_UARC,
55 MTHCA_RES_NUM
56};
57
58enum {
59 MTHCA_NUM_EQS = 32,
60 MTHCA_NUM_PDS = 1 << 15
61};
62
63u64 mthca_make_profile(struct mthca_dev *dev,
64 struct mthca_profile *request,
65 struct mthca_dev_lim *dev_lim,
66 struct mthca_init_hca_param *init_hca)
67{
68 struct mthca_resource {
69 u64 size;
70 u64 start;
71 int type;
72 int num;
73 int log_num;
74 };
75
76 u64 mem_base, mem_avail;
77 u64 total_size = 0;
78 struct mthca_resource *profile;
79 struct mthca_resource tmp;
80 int i, j;
81
82 profile = kmalloc(MTHCA_RES_NUM * sizeof *profile, GFP_KERNEL);
83 if (!profile)
84 return -ENOMEM;
85
86 memset(profile, 0, MTHCA_RES_NUM * sizeof *profile);
87
88 profile[MTHCA_RES_QP].size = dev_lim->qpc_entry_sz;
89 profile[MTHCA_RES_EEC].size = dev_lim->eec_entry_sz;
90 profile[MTHCA_RES_SRQ].size = dev_lim->srq_entry_sz;
91 profile[MTHCA_RES_CQ].size = dev_lim->cqc_entry_sz;
92 profile[MTHCA_RES_EQP].size = dev_lim->eqpc_entry_sz;
93 profile[MTHCA_RES_EEEC].size = dev_lim->eeec_entry_sz;
94 profile[MTHCA_RES_EQ].size = dev_lim->eqc_entry_sz;
95 profile[MTHCA_RES_RDB].size = MTHCA_RDB_ENTRY_SIZE;
96 profile[MTHCA_RES_MCG].size = MTHCA_MGM_ENTRY_SIZE;
97 profile[MTHCA_RES_MPT].size = dev_lim->mpt_entry_sz;
98 profile[MTHCA_RES_MTT].size = dev_lim->mtt_seg_sz;
99 profile[MTHCA_RES_UAR].size = dev_lim->uar_scratch_entry_sz;
100 profile[MTHCA_RES_UDAV].size = MTHCA_AV_SIZE;
101 profile[MTHCA_RES_UARC].size = request->uarc_size;
102
103 profile[MTHCA_RES_QP].num = request->num_qp;
104 profile[MTHCA_RES_EQP].num = request->num_qp;
105 profile[MTHCA_RES_RDB].num = request->num_qp * request->rdb_per_qp;
106 profile[MTHCA_RES_CQ].num = request->num_cq;
107 profile[MTHCA_RES_EQ].num = MTHCA_NUM_EQS;
108 profile[MTHCA_RES_MCG].num = request->num_mcg;
109 profile[MTHCA_RES_MPT].num = request->num_mpt;
110 profile[MTHCA_RES_MTT].num = request->num_mtt;
111 profile[MTHCA_RES_UAR].num = request->num_uar;
112 profile[MTHCA_RES_UARC].num = request->num_uar;
113 profile[MTHCA_RES_UDAV].num = request->num_udav;
114
115 for (i = 0; i < MTHCA_RES_NUM; ++i) {
116 profile[i].type = i;
117 profile[i].log_num = max(ffs(profile[i].num) - 1, 0);
118 profile[i].size *= profile[i].num;
119 if (dev->hca_type == ARBEL_NATIVE)
120 profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
121 }
122
123 if (dev->hca_type == ARBEL_NATIVE) {
124 mem_base = 0;
125 mem_avail = dev_lim->hca.arbel.max_icm_sz;
126 } else {
127 mem_base = dev->ddr_start;
128 mem_avail = dev->fw.tavor.fw_start - dev->ddr_start;
129 }
130
131 /*
132 * Sort the resources in decreasing order of size. Since they
133 * all have sizes that are powers of 2, we'll be able to keep
134 * resources aligned to their size and pack them without gaps
135 * using the sorted order.
136 */
137 for (i = MTHCA_RES_NUM; i > 0; --i)
138 for (j = 1; j < i; ++j) {
139 if (profile[j].size > profile[j - 1].size) {
140 tmp = profile[j];
141 profile[j] = profile[j - 1];
142 profile[j - 1] = tmp;
143 }
144 }
145
146 for (i = 0; i < MTHCA_RES_NUM; ++i) {
147 if (profile[i].size) {
148 profile[i].start = mem_base + total_size;
149 total_size += profile[i].size;
150 }
151 if (total_size > mem_avail) {
152 mthca_err(dev, "Profile requires 0x%llx bytes; "
153 "won't in 0x%llx bytes of context memory.\n",
154 (unsigned long long) total_size,
155 (unsigned long long) mem_avail);
156 kfree(profile);
157 return -ENOMEM;
158 }
159
160 if (profile[i].size)
161 mthca_dbg(dev, "profile[%2d]--%2d/%2d @ 0x%16llx "
162 "(size 0x%8llx)\n",
163 i, profile[i].type, profile[i].log_num,
164 (unsigned long long) profile[i].start,
165 (unsigned long long) profile[i].size);
166 }
167
168 if (dev->hca_type == ARBEL_NATIVE)
169 mthca_dbg(dev, "HCA context memory: reserving %d KB\n",
170 (int) (total_size >> 10));
171 else
172 mthca_dbg(dev, "HCA memory: allocated %d KB/%d KB (%d KB free)\n",
173 (int) (total_size >> 10), (int) (mem_avail >> 10),
174 (int) ((mem_avail - total_size) >> 10));
175
176 for (i = 0; i < MTHCA_RES_NUM; ++i) {
177 switch (profile[i].type) {
178 case MTHCA_RES_QP:
179 dev->limits.num_qps = profile[i].num;
180 init_hca->qpc_base = profile[i].start;
181 init_hca->log_num_qps = profile[i].log_num;
182 break;
183 case MTHCA_RES_EEC:
184 dev->limits.num_eecs = profile[i].num;
185 init_hca->eec_base = profile[i].start;
186 init_hca->log_num_eecs = profile[i].log_num;
187 break;
188 case MTHCA_RES_SRQ:
189 dev->limits.num_srqs = profile[i].num;
190 init_hca->srqc_base = profile[i].start;
191 init_hca->log_num_srqs = profile[i].log_num;
192 break;
193 case MTHCA_RES_CQ:
194 dev->limits.num_cqs = profile[i].num;
195 init_hca->cqc_base = profile[i].start;
196 init_hca->log_num_cqs = profile[i].log_num;
197 break;
198 case MTHCA_RES_EQP:
199 init_hca->eqpc_base = profile[i].start;
200 break;
201 case MTHCA_RES_EEEC:
202 init_hca->eeec_base = profile[i].start;
203 break;
204 case MTHCA_RES_EQ:
205 dev->limits.num_eqs = profile[i].num;
206 init_hca->eqc_base = profile[i].start;
207 init_hca->log_num_eqs = profile[i].log_num;
208 break;
209 case MTHCA_RES_RDB:
210 for (dev->qp_table.rdb_shift = 0;
211 profile[MTHCA_RES_QP].num << dev->qp_table.rdb_shift <
212 profile[i].num;
213 ++dev->qp_table.rdb_shift)
214 ; /* nothing */
215 dev->qp_table.rdb_base = (u32) profile[i].start;
216 init_hca->rdb_base = profile[i].start;
217 break;
218 case MTHCA_RES_MCG:
219 dev->limits.num_mgms = profile[i].num >> 1;
220 dev->limits.num_amgms = profile[i].num >> 1;
221 init_hca->mc_base = profile[i].start;
222 init_hca->log_mc_entry_sz = ffs(MTHCA_MGM_ENTRY_SIZE) - 1;
223 init_hca->log_mc_table_sz = profile[i].log_num;
224 init_hca->mc_hash_sz = 1 << (profile[i].log_num - 1);
225 break;
226 case MTHCA_RES_MPT:
227 dev->limits.num_mpts = profile[i].num;
228 init_hca->mpt_base = profile[i].start;
229 init_hca->log_mpt_sz = profile[i].log_num;
230 break;
231 case MTHCA_RES_MTT:
232 dev->limits.num_mtt_segs = profile[i].num;
233 dev->limits.mtt_seg_size = dev_lim->mtt_seg_sz;
234 dev->mr_table.mtt_base = profile[i].start;
235 init_hca->mtt_base = profile[i].start;
236 init_hca->mtt_seg_sz = ffs(dev_lim->mtt_seg_sz) - 7;
237 break;
238 case MTHCA_RES_UAR:
239 dev->limits.num_uars = profile[i].num;
240 init_hca->uar_scratch_base = profile[i].start;
241 break;
242 case MTHCA_RES_UDAV:
243 dev->av_table.ddr_av_base = profile[i].start;
244 dev->av_table.num_ddr_avs = profile[i].num;
245 break;
246 case MTHCA_RES_UARC:
247 dev->uar_table.uarc_size = request->uarc_size;
248 dev->uar_table.uarc_base = profile[i].start;
249 init_hca->uarc_base = profile[i].start;
250 init_hca->log_uarc_sz = ffs(request->uarc_size) - 13;
251 init_hca->log_uar_sz = ffs(request->num_uar) - 1;
252 break;
253 default:
254 break;
255 }
256 }
257
258 /*
259 * PDs don't take any HCA memory, but we assign them as part
260 * of the HCA profile anyway.
261 */
262 dev->limits.num_pds = MTHCA_NUM_PDS;
263
264 kfree(profile);
265 return total_size;
266}
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