1 /* 2 * Copyright (c) 2017, Mellanox Technologies. 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 33 #include "cmd.h" 34 35 int mlx5_cmd_dump_fill_mkey(struct mlx5_core_dev *dev, u32 *mkey) 36 { 37 u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {0}; 38 u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {0}; 39 int err; 40 41 MLX5_SET(query_special_contexts_in, in, opcode, 42 MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); 43 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 44 if (!err) 45 *mkey = MLX5_GET(query_special_contexts_out, out, 46 dump_fill_mkey); 47 return err; 48 } 49 50 int mlx5_cmd_null_mkey(struct mlx5_core_dev *dev, u32 *null_mkey) 51 { 52 u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {}; 53 u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {}; 54 int err; 55 56 MLX5_SET(query_special_contexts_in, in, opcode, 57 MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); 58 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 59 if (!err) 60 *null_mkey = MLX5_GET(query_special_contexts_out, out, 61 null_mkey); 62 return err; 63 } 64 65 int mlx5_cmd_query_cong_params(struct mlx5_core_dev *dev, int cong_point, 66 void *out, int out_size) 67 { 68 u32 in[MLX5_ST_SZ_DW(query_cong_params_in)] = { }; 69 70 MLX5_SET(query_cong_params_in, in, opcode, 71 MLX5_CMD_OP_QUERY_CONG_PARAMS); 72 MLX5_SET(query_cong_params_in, in, cong_protocol, cong_point); 73 74 return mlx5_cmd_exec(dev, in, sizeof(in), out, out_size); 75 } 76 77 int mlx5_cmd_modify_cong_params(struct mlx5_core_dev *dev, 78 void *in, int in_size) 79 { 80 u32 out[MLX5_ST_SZ_DW(modify_cong_params_out)] = { }; 81 82 return mlx5_cmd_exec(dev, in, in_size, out, sizeof(out)); 83 } 84 85 int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr, 86 u64 length, u32 alignment) 87 { 88 struct mlx5_core_dev *dev = dm->dev; 89 u64 num_memic_hw_pages = MLX5_CAP_DEV_MEM(dev, memic_bar_size) 90 >> PAGE_SHIFT; 91 u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr); 92 u32 max_alignment = MLX5_CAP_DEV_MEM(dev, log_max_memic_addr_alignment); 93 u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE); 94 u32 out[MLX5_ST_SZ_DW(alloc_memic_out)] = {}; 95 u32 in[MLX5_ST_SZ_DW(alloc_memic_in)] = {}; 96 u32 mlx5_alignment; 97 u64 page_idx = 0; 98 int ret = 0; 99 100 if (!length || (length & MLX5_MEMIC_ALLOC_SIZE_MASK)) 101 return -EINVAL; 102 103 /* mlx5 device sets alignment as 64*2^driver_value 104 * so normalizing is needed. 105 */ 106 mlx5_alignment = (alignment < MLX5_MEMIC_BASE_ALIGN) ? 0 : 107 alignment - MLX5_MEMIC_BASE_ALIGN; 108 if (mlx5_alignment > max_alignment) 109 return -EINVAL; 110 111 MLX5_SET(alloc_memic_in, in, opcode, MLX5_CMD_OP_ALLOC_MEMIC); 112 MLX5_SET(alloc_memic_in, in, range_size, num_pages * PAGE_SIZE); 113 MLX5_SET(alloc_memic_in, in, memic_size, length); 114 MLX5_SET(alloc_memic_in, in, log_memic_addr_alignment, 115 mlx5_alignment); 116 117 while (page_idx < num_memic_hw_pages) { 118 spin_lock(&dm->lock); 119 page_idx = bitmap_find_next_zero_area(dm->memic_alloc_pages, 120 num_memic_hw_pages, 121 page_idx, 122 num_pages, 0); 123 124 if (page_idx < num_memic_hw_pages) 125 bitmap_set(dm->memic_alloc_pages, 126 page_idx, num_pages); 127 128 spin_unlock(&dm->lock); 129 130 if (page_idx >= num_memic_hw_pages) 131 break; 132 133 MLX5_SET64(alloc_memic_in, in, range_start_addr, 134 hw_start_addr + (page_idx * PAGE_SIZE)); 135 136 ret = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 137 if (ret) { 138 spin_lock(&dm->lock); 139 bitmap_clear(dm->memic_alloc_pages, 140 page_idx, num_pages); 141 spin_unlock(&dm->lock); 142 143 if (ret == -EAGAIN) { 144 page_idx++; 145 continue; 146 } 147 148 return ret; 149 } 150 151 *addr = dev->bar_addr + 152 MLX5_GET64(alloc_memic_out, out, memic_start_addr); 153 154 return 0; 155 } 156 157 return -ENOMEM; 158 } 159 160 int mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length) 161 { 162 struct mlx5_core_dev *dev = dm->dev; 163 u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr); 164 u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE); 165 u32 out[MLX5_ST_SZ_DW(dealloc_memic_out)] = {0}; 166 u32 in[MLX5_ST_SZ_DW(dealloc_memic_in)] = {0}; 167 u64 start_page_idx; 168 int err; 169 170 addr -= dev->bar_addr; 171 start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT; 172 173 MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC); 174 MLX5_SET64(dealloc_memic_in, in, memic_start_addr, addr); 175 MLX5_SET(dealloc_memic_in, in, memic_size, length); 176 177 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 178 179 if (!err) { 180 spin_lock(&dm->lock); 181 bitmap_clear(dm->memic_alloc_pages, 182 start_page_idx, num_pages); 183 spin_unlock(&dm->lock); 184 } 185 186 return err; 187 } 188 189 int mlx5_cmd_query_ext_ppcnt_counters(struct mlx5_core_dev *dev, void *out) 190 { 191 u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {}; 192 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 193 194 MLX5_SET(ppcnt_reg, in, local_port, 1); 195 196 MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP); 197 return mlx5_core_access_reg(dev, in, sz, out, sz, MLX5_REG_PPCNT, 198 0, 0); 199 } 200 201 void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid) 202 { 203 u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {}; 204 u32 out[MLX5_ST_SZ_DW(destroy_tir_out)] = {}; 205 206 MLX5_SET(destroy_tir_in, in, opcode, MLX5_CMD_OP_DESTROY_TIR); 207 MLX5_SET(destroy_tir_in, in, tirn, tirn); 208 MLX5_SET(destroy_tir_in, in, uid, uid); 209 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 210 } 211 212 void mlx5_cmd_destroy_tis(struct mlx5_core_dev *dev, u32 tisn, u16 uid) 213 { 214 u32 in[MLX5_ST_SZ_DW(destroy_tis_in)] = {0}; 215 u32 out[MLX5_ST_SZ_DW(destroy_tis_out)] = {0}; 216 217 MLX5_SET(destroy_tis_in, in, opcode, MLX5_CMD_OP_DESTROY_TIS); 218 MLX5_SET(destroy_tis_in, in, tisn, tisn); 219 MLX5_SET(destroy_tis_in, in, uid, uid); 220 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 221 } 222 223 void mlx5_cmd_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn, u16 uid) 224 { 225 u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)] = {}; 226 u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)] = {}; 227 228 MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT); 229 MLX5_SET(destroy_rqt_in, in, rqtn, rqtn); 230 MLX5_SET(destroy_rqt_in, in, uid, uid); 231 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 232 } 233 234 int mlx5_cmd_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn, 235 u16 uid) 236 { 237 u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {0}; 238 u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {0}; 239 int err; 240 241 MLX5_SET(alloc_transport_domain_in, in, opcode, 242 MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN); 243 MLX5_SET(alloc_transport_domain_in, in, uid, uid); 244 245 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 246 if (!err) 247 *tdn = MLX5_GET(alloc_transport_domain_out, out, 248 transport_domain); 249 250 return err; 251 } 252 253 void mlx5_cmd_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn, 254 u16 uid) 255 { 256 u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)] = {0}; 257 u32 out[MLX5_ST_SZ_DW(dealloc_transport_domain_out)] = {0}; 258 259 MLX5_SET(dealloc_transport_domain_in, in, opcode, 260 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN); 261 MLX5_SET(dealloc_transport_domain_in, in, uid, uid); 262 MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn); 263 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 264 } 265 266 void mlx5_cmd_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn, u16 uid) 267 { 268 u32 out[MLX5_ST_SZ_DW(dealloc_pd_out)] = {}; 269 u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)] = {}; 270 271 MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD); 272 MLX5_SET(dealloc_pd_in, in, pd, pdn); 273 MLX5_SET(dealloc_pd_in, in, uid, uid); 274 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 275 } 276 277 int mlx5_cmd_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, 278 u32 qpn, u16 uid) 279 { 280 u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {}; 281 u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {}; 282 void *gid; 283 284 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG); 285 MLX5_SET(attach_to_mcg_in, in, qpn, qpn); 286 MLX5_SET(attach_to_mcg_in, in, uid, uid); 287 gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid); 288 memcpy(gid, mgid, sizeof(*mgid)); 289 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 290 } 291 292 int mlx5_cmd_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, 293 u32 qpn, u16 uid) 294 { 295 u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {}; 296 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {}; 297 void *gid; 298 299 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG); 300 MLX5_SET(detach_from_mcg_in, in, qpn, qpn); 301 MLX5_SET(detach_from_mcg_in, in, uid, uid); 302 gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid); 303 memcpy(gid, mgid, sizeof(*mgid)); 304 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 305 } 306 307 int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid) 308 { 309 u32 out[MLX5_ST_SZ_DW(alloc_xrcd_out)] = {}; 310 u32 in[MLX5_ST_SZ_DW(alloc_xrcd_in)] = {}; 311 int err; 312 313 MLX5_SET(alloc_xrcd_in, in, opcode, MLX5_CMD_OP_ALLOC_XRCD); 314 MLX5_SET(alloc_xrcd_in, in, uid, uid); 315 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 316 if (!err) 317 *xrcdn = MLX5_GET(alloc_xrcd_out, out, xrcd); 318 return err; 319 } 320 321 int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid) 322 { 323 u32 out[MLX5_ST_SZ_DW(dealloc_xrcd_out)] = {}; 324 u32 in[MLX5_ST_SZ_DW(dealloc_xrcd_in)] = {}; 325 326 MLX5_SET(dealloc_xrcd_in, in, opcode, MLX5_CMD_OP_DEALLOC_XRCD); 327 MLX5_SET(dealloc_xrcd_in, in, xrcd, xrcdn); 328 MLX5_SET(dealloc_xrcd_in, in, uid, uid); 329 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 330 } 331 332 int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id, 333 u16 uid) 334 { 335 u32 in[MLX5_ST_SZ_DW(alloc_q_counter_in)] = {0}; 336 u32 out[MLX5_ST_SZ_DW(alloc_q_counter_out)] = {0}; 337 int err; 338 339 MLX5_SET(alloc_q_counter_in, in, opcode, MLX5_CMD_OP_ALLOC_Q_COUNTER); 340 MLX5_SET(alloc_q_counter_in, in, uid, uid); 341 342 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 343 if (!err) 344 *counter_id = MLX5_GET(alloc_q_counter_out, out, 345 counter_set_id); 346 return err; 347 } 348 349 int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, 350 u16 opmod, u8 port) 351 { 352 int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out); 353 int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in); 354 int err = -ENOMEM; 355 void *data; 356 void *resp; 357 u32 *out; 358 u32 *in; 359 360 in = kzalloc(inlen, GFP_KERNEL); 361 out = kzalloc(outlen, GFP_KERNEL); 362 if (!in || !out) 363 goto out; 364 365 MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC); 366 MLX5_SET(mad_ifc_in, in, op_mod, opmod); 367 MLX5_SET(mad_ifc_in, in, port, port); 368 369 data = MLX5_ADDR_OF(mad_ifc_in, in, mad); 370 memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad)); 371 372 err = mlx5_cmd_exec(dev, in, inlen, out, outlen); 373 if (err) 374 goto out; 375 376 resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet); 377 memcpy(outb, resp, 378 MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet)); 379 380 out: 381 kfree(out); 382 kfree(in); 383 return err; 384 } 385