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35#include <linux/slab.h>
36
37#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 u32 num;
80 int log_num;
81 };
82
83 u64 total_size = 0;
84 struct mlx4_resource *profile;
85 struct mlx4_resource tmp;
86 struct sysinfo si;
87 int i, j;
88
89 profile = kcalloc(MLX4_RES_NUM, sizeof(*profile), GFP_KERNEL);
90 if (!profile)
91 return -ENOMEM;
92
93
94
95
96
97
98
99
100
101
102
103
104
105 si_meminfo(&si);
106 request->num_mtt =
107 roundup_pow_of_two(max_t(unsigned, request->num_mtt,
108 min(1UL << (31 - log_mtts_per_seg),
109 si.totalram >> (log_mtts_per_seg - 1))));
110
111 profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz;
112 profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
113 profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz;
114 profile[MLX4_RES_AUXC].size = dev_cap->aux_entry_sz;
115 profile[MLX4_RES_SRQ].size = dev_cap->srq_entry_sz;
116 profile[MLX4_RES_CQ].size = dev_cap->cqc_entry_sz;
117 profile[MLX4_RES_EQ].size = dev_cap->eqc_entry_sz;
118 profile[MLX4_RES_DMPT].size = dev_cap->dmpt_entry_sz;
119 profile[MLX4_RES_CMPT].size = dev_cap->cmpt_entry_sz;
120 profile[MLX4_RES_MTT].size = dev_cap->mtt_entry_sz;
121 profile[MLX4_RES_MCG].size = mlx4_get_mgm_entry_size(dev);
122
123 profile[MLX4_RES_QP].num = request->num_qp;
124 profile[MLX4_RES_RDMARC].num = request->num_qp * request->rdmarc_per_qp;
125 profile[MLX4_RES_ALTC].num = request->num_qp;
126 profile[MLX4_RES_AUXC].num = request->num_qp;
127 profile[MLX4_RES_SRQ].num = request->num_srq;
128 profile[MLX4_RES_CQ].num = request->num_cq;
129 profile[MLX4_RES_EQ].num = mlx4_is_mfunc(dev) ?
130 dev->phys_caps.num_phys_eqs :
131 min_t(unsigned, dev_cap->max_eqs, MAX_MSIX);
132 profile[MLX4_RES_DMPT].num = request->num_mpt;
133 profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS;
134 profile[MLX4_RES_MTT].num = request->num_mtt * (1 << log_mtts_per_seg);
135 profile[MLX4_RES_MCG].num = request->num_mcg;
136
137 for (i = 0; i < MLX4_RES_NUM; ++i) {
138 profile[i].type = i;
139 profile[i].num = roundup_pow_of_two(profile[i].num);
140 profile[i].log_num = ilog2(profile[i].num);
141 profile[i].size *= profile[i].num;
142 profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
143 }
144
145
146
147
148
149
150
151 for (i = MLX4_RES_NUM; i > 0; --i)
152 for (j = 1; j < i; ++j) {
153 if (profile[j].size > profile[j - 1].size) {
154 tmp = profile[j];
155 profile[j] = profile[j - 1];
156 profile[j - 1] = tmp;
157 }
158 }
159
160 for (i = 0; i < MLX4_RES_NUM; ++i) {
161 if (profile[i].size) {
162 profile[i].start = total_size;
163 total_size += profile[i].size;
164 }
165
166 if (total_size > dev_cap->max_icm_sz) {
167 mlx4_err(dev, "Profile requires 0x%llx bytes; "
168 "won't fit in 0x%llx bytes of context memory.\n",
169 (unsigned long long) total_size,
170 (unsigned long long) dev_cap->max_icm_sz);
171 kfree(profile);
172 return -ENOMEM;
173 }
174
175 if (profile[i].size)
176 mlx4_dbg(dev, " profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, "
177 "size 0x%10llx\n",
178 i, res_name[profile[i].type], profile[i].log_num,
179 (unsigned long long) profile[i].start,
180 (unsigned long long) profile[i].size);
181 }
182
183 mlx4_dbg(dev, "HCA context memory: reserving %d KB\n",
184 (int) (total_size >> 10));
185
186 for (i = 0; i < MLX4_RES_NUM; ++i) {
187 switch (profile[i].type) {
188 case MLX4_RES_QP:
189 dev->caps.num_qps = profile[i].num;
190 init_hca->qpc_base = profile[i].start;
191 init_hca->log_num_qps = profile[i].log_num;
192 break;
193 case MLX4_RES_RDMARC:
194 for (priv->qp_table.rdmarc_shift = 0;
195 request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num;
196 ++priv->qp_table.rdmarc_shift)
197 ;
198 dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift;
199 priv->qp_table.rdmarc_base = (u32) profile[i].start;
200 init_hca->rdmarc_base = profile[i].start;
201 init_hca->log_rd_per_qp = priv->qp_table.rdmarc_shift;
202 break;
203 case MLX4_RES_ALTC:
204 init_hca->altc_base = profile[i].start;
205 break;
206 case MLX4_RES_AUXC:
207 init_hca->auxc_base = profile[i].start;
208 break;
209 case MLX4_RES_SRQ:
210 dev->caps.num_srqs = profile[i].num;
211 init_hca->srqc_base = profile[i].start;
212 init_hca->log_num_srqs = profile[i].log_num;
213 break;
214 case MLX4_RES_CQ:
215 dev->caps.num_cqs = profile[i].num;
216 init_hca->cqc_base = profile[i].start;
217 init_hca->log_num_cqs = profile[i].log_num;
218 break;
219 case MLX4_RES_EQ:
220 dev->caps.num_eqs = roundup_pow_of_two(min_t(unsigned, dev_cap->max_eqs,
221 MAX_MSIX));
222 init_hca->eqc_base = profile[i].start;
223 init_hca->log_num_eqs = ilog2(dev->caps.num_eqs);
224 break;
225 case MLX4_RES_DMPT:
226 dev->caps.num_mpts = profile[i].num;
227 priv->mr_table.mpt_base = profile[i].start;
228 init_hca->dmpt_base = profile[i].start;
229 init_hca->log_mpt_sz = profile[i].log_num;
230 break;
231 case MLX4_RES_CMPT:
232 init_hca->cmpt_base = profile[i].start;
233 break;
234 case MLX4_RES_MTT:
235 dev->caps.num_mtts = profile[i].num;
236 priv->mr_table.mtt_base = profile[i].start;
237 init_hca->mtt_base = profile[i].start;
238 break;
239 case MLX4_RES_MCG:
240 init_hca->mc_base = profile[i].start;
241 init_hca->log_mc_entry_sz =
242 ilog2(mlx4_get_mgm_entry_size(dev));
243 init_hca->log_mc_table_sz = profile[i].log_num;
244 if (dev->caps.steering_mode ==
245 MLX4_STEERING_MODE_DEVICE_MANAGED) {
246 dev->caps.num_mgms = profile[i].num;
247 } else {
248 init_hca->log_mc_hash_sz =
249 profile[i].log_num - 1;
250 dev->caps.num_mgms = profile[i].num >> 1;
251 dev->caps.num_amgms = profile[i].num >> 1;
252 }
253 break;
254 default:
255 break;
256 }
257 }
258
259
260
261
262
263 dev->caps.num_pds = MLX4_NUM_PDS;
264
265 kfree(profile);
266 return total_size;
267}
268