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225c7b1f RD |
1 | /* |
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 | ||
5a0e3ad6 TH |
35 | #include <linux/slab.h> |
36 | ||
225c7b1f RD |
37 | #include "mlx4.h" |
38 | #include "fw.h" | |
39 | ||
40 | enum { | |
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 | ||
55 | static 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 | ||
69 | u64 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; | |
ab6bf42e | 101 | profile[MLX4_RES_MTT].size = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz; |
225c7b1f RD |
102 | 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; | |
d3b924d9 AM |
110 | profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs, |
111 | dev_cap->reserved_eqs + | |
112 | num_possible_cpus() + 1); | |
225c7b1f RD |
113 | 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 | } |