blob: 5caf0115fa5b4e923e3d10d760c6c1284a21c694 [file] [log] [blame]
Roland Dreier225c7b12007-05-08 18:00:38 -07001/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090035#include <linux/slab.h>
36
Roland Dreier225c7b12007-05-08 18:00:38 -070037#include "mlx4.h"
38#include "fw.h"
39
40enum {
41 MLX4_RES_QP,
42 MLX4_RES_RDMARC,
43 MLX4_RES_ALTC,
44 MLX4_RES_AUXC,
45 MLX4_RES_SRQ,
46 MLX4_RES_CQ,
47 MLX4_RES_EQ,
48 MLX4_RES_DMPT,
49 MLX4_RES_CMPT,
50 MLX4_RES_MTT,
51 MLX4_RES_MCG,
52 MLX4_RES_NUM
53};
54
55static const char *res_name[] = {
56 [MLX4_RES_QP] = "QP",
57 [MLX4_RES_RDMARC] = "RDMARC",
58 [MLX4_RES_ALTC] = "ALTC",
59 [MLX4_RES_AUXC] = "AUXC",
60 [MLX4_RES_SRQ] = "SRQ",
61 [MLX4_RES_CQ] = "CQ",
62 [MLX4_RES_EQ] = "EQ",
63 [MLX4_RES_DMPT] = "DMPT",
64 [MLX4_RES_CMPT] = "CMPT",
65 [MLX4_RES_MTT] = "MTT",
66 [MLX4_RES_MCG] = "MCG",
67};
68
69u64 mlx4_make_profile(struct mlx4_dev *dev,
70 struct mlx4_profile *request,
71 struct mlx4_dev_cap *dev_cap,
72 struct mlx4_init_hca_param *init_hca)
73{
74 struct mlx4_priv *priv = mlx4_priv(dev);
75 struct mlx4_resource {
76 u64 size;
77 u64 start;
78 int type;
79 int num;
80 int log_num;
81 };
82
83 u64 total_size = 0;
84 struct mlx4_resource *profile;
85 struct mlx4_resource tmp;
86 int i, j;
87
88 profile = kzalloc(MLX4_RES_NUM * sizeof *profile, GFP_KERNEL);
89 if (!profile)
90 return -ENOMEM;
91
92 profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz;
93 profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
94 profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz;
95 profile[MLX4_RES_AUXC].size = dev_cap->aux_entry_sz;
96 profile[MLX4_RES_SRQ].size = dev_cap->srq_entry_sz;
97 profile[MLX4_RES_CQ].size = dev_cap->cqc_entry_sz;
98 profile[MLX4_RES_EQ].size = dev_cap->eqc_entry_sz;
99 profile[MLX4_RES_DMPT].size = dev_cap->dmpt_entry_sz;
100 profile[MLX4_RES_CMPT].size = dev_cap->cmpt_entry_sz;
Eli Cohenab6bf422009-05-27 14:38:34 -0700101 profile[MLX4_RES_MTT].size = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
Roland Dreier225c7b12007-05-08 18:00:38 -0700102 profile[MLX4_RES_MCG].size = MLX4_MGM_ENTRY_SIZE;
103
104 profile[MLX4_RES_QP].num = request->num_qp;
105 profile[MLX4_RES_RDMARC].num = request->num_qp * request->rdmarc_per_qp;
106 profile[MLX4_RES_ALTC].num = request->num_qp;
107 profile[MLX4_RES_AUXC].num = request->num_qp;
108 profile[MLX4_RES_SRQ].num = request->num_srq;
109 profile[MLX4_RES_CQ].num = request->num_cq;
Andrew Mortond3b924d2009-01-15 20:43:56 -0800110 profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs,
111 dev_cap->reserved_eqs +
112 num_possible_cpus() + 1);
Roland Dreier225c7b12007-05-08 18:00:38 -0700113 profile[MLX4_RES_DMPT].num = request->num_mpt;
114 profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS;
115 profile[MLX4_RES_MTT].num = request->num_mtt;
116 profile[MLX4_RES_MCG].num = request->num_mcg;
117
118 for (i = 0; i < MLX4_RES_NUM; ++i) {
119 profile[i].type = i;
120 profile[i].num = roundup_pow_of_two(profile[i].num);
121 profile[i].log_num = ilog2(profile[i].num);
122 profile[i].size *= profile[i].num;
123 profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
124 }
125
126 /*
127 * Sort the resources in decreasing order of size. Since they
128 * all have sizes that are powers of 2, we'll be able to keep
129 * resources aligned to their size and pack them without gaps
130 * using the sorted order.
131 */
132 for (i = MLX4_RES_NUM; i > 0; --i)
133 for (j = 1; j < i; ++j) {
134 if (profile[j].size > profile[j - 1].size) {
135 tmp = profile[j];
136 profile[j] = profile[j - 1];
137 profile[j - 1] = tmp;
138 }
139 }
140
141 for (i = 0; i < MLX4_RES_NUM; ++i) {
142 if (profile[i].size) {
143 profile[i].start = total_size;
144 total_size += profile[i].size;
145 }
146
147 if (total_size > dev_cap->max_icm_sz) {
148 mlx4_err(dev, "Profile requires 0x%llx bytes; "
149 "won't fit in 0x%llx bytes of context memory.\n",
150 (unsigned long long) total_size,
151 (unsigned long long) dev_cap->max_icm_sz);
152 kfree(profile);
153 return -ENOMEM;
154 }
155
156 if (profile[i].size)
157 mlx4_dbg(dev, " profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, "
158 "size 0x%10llx\n",
159 i, res_name[profile[i].type], profile[i].log_num,
160 (unsigned long long) profile[i].start,
161 (unsigned long long) profile[i].size);
162 }
163
164 mlx4_dbg(dev, "HCA context memory: reserving %d KB\n",
165 (int) (total_size >> 10));
166
167 for (i = 0; i < MLX4_RES_NUM; ++i) {
168 switch (profile[i].type) {
169 case MLX4_RES_QP:
170 dev->caps.num_qps = profile[i].num;
171 init_hca->qpc_base = profile[i].start;
172 init_hca->log_num_qps = profile[i].log_num;
173 break;
174 case MLX4_RES_RDMARC:
175 for (priv->qp_table.rdmarc_shift = 0;
176 request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num;
177 ++priv->qp_table.rdmarc_shift)
178 ; /* nothing */
179 dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift;
180 priv->qp_table.rdmarc_base = (u32) profile[i].start;
181 init_hca->rdmarc_base = profile[i].start;
182 init_hca->log_rd_per_qp = priv->qp_table.rdmarc_shift;
183 break;
184 case MLX4_RES_ALTC:
185 init_hca->altc_base = profile[i].start;
186 break;
187 case MLX4_RES_AUXC:
188 init_hca->auxc_base = profile[i].start;
189 break;
190 case MLX4_RES_SRQ:
191 dev->caps.num_srqs = profile[i].num;
192 init_hca->srqc_base = profile[i].start;
193 init_hca->log_num_srqs = profile[i].log_num;
194 break;
195 case MLX4_RES_CQ:
196 dev->caps.num_cqs = profile[i].num;
197 init_hca->cqc_base = profile[i].start;
198 init_hca->log_num_cqs = profile[i].log_num;
199 break;
200 case MLX4_RES_EQ:
201 dev->caps.num_eqs = profile[i].num;
202 init_hca->eqc_base = profile[i].start;
203 init_hca->log_num_eqs = profile[i].log_num;
204 break;
205 case MLX4_RES_DMPT:
206 dev->caps.num_mpts = profile[i].num;
207 priv->mr_table.mpt_base = profile[i].start;
208 init_hca->dmpt_base = profile[i].start;
209 init_hca->log_mpt_sz = profile[i].log_num;
210 break;
211 case MLX4_RES_CMPT:
212 init_hca->cmpt_base = profile[i].start;
213 break;
214 case MLX4_RES_MTT:
215 dev->caps.num_mtt_segs = profile[i].num;
216 priv->mr_table.mtt_base = profile[i].start;
217 init_hca->mtt_base = profile[i].start;
218 break;
219 case MLX4_RES_MCG:
220 dev->caps.num_mgms = profile[i].num >> 1;
221 dev->caps.num_amgms = profile[i].num >> 1;
222 init_hca->mc_base = profile[i].start;
223 init_hca->log_mc_entry_sz = ilog2(MLX4_MGM_ENTRY_SIZE);
224 init_hca->log_mc_table_sz = profile[i].log_num;
225 init_hca->log_mc_hash_sz = profile[i].log_num - 1;
226 break;
227 default:
228 break;
229 }
230 }
231
232 /*
233 * PDs don't take any HCA memory, but we assign them as part
234 * of the HCA profile anyway.
235 */
236 dev->caps.num_pds = MLX4_NUM_PDS;
237
238 kfree(profile);
239 return total_size;
240}