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 void 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 if (err) 179 return; 180 181 spin_lock(&dm->lock); 182 bitmap_clear(dm->memic_alloc_pages, 183 start_page_idx, num_pages); 184 spin_unlock(&dm->lock); 185 } 186 187 int mlx5_cmd_query_ext_ppcnt_counters(struct mlx5_core_dev *dev, void *out) 188 { 189 u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {}; 190 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 191 192 MLX5_SET(ppcnt_reg, in, local_port, 1); 193 194 MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP); 195 return mlx5_core_access_reg(dev, in, sz, out, sz, MLX5_REG_PPCNT, 196 0, 0); 197 } 198 199 void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid) 200 { 201 u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {}; 202 u32 out[MLX5_ST_SZ_DW(destroy_tir_out)] = {}; 203 204 MLX5_SET(destroy_tir_in, in, opcode, MLX5_CMD_OP_DESTROY_TIR); 205 MLX5_SET(destroy_tir_in, in, tirn, tirn); 206 MLX5_SET(destroy_tir_in, in, uid, uid); 207 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 208 } 209 210 void mlx5_cmd_destroy_tis(struct mlx5_core_dev *dev, u32 tisn, u16 uid) 211 { 212 u32 in[MLX5_ST_SZ_DW(destroy_tis_in)] = {0}; 213 u32 out[MLX5_ST_SZ_DW(destroy_tis_out)] = {0}; 214 215 MLX5_SET(destroy_tis_in, in, opcode, MLX5_CMD_OP_DESTROY_TIS); 216 MLX5_SET(destroy_tis_in, in, tisn, tisn); 217 MLX5_SET(destroy_tis_in, in, uid, uid); 218 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 219 } 220 221 void mlx5_cmd_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn, u16 uid) 222 { 223 u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)] = {}; 224 u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)] = {}; 225 226 MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT); 227 MLX5_SET(destroy_rqt_in, in, rqtn, rqtn); 228 MLX5_SET(destroy_rqt_in, in, uid, uid); 229 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 230 } 231 232 int mlx5_cmd_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn, 233 u16 uid) 234 { 235 u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {0}; 236 u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {0}; 237 int err; 238 239 MLX5_SET(alloc_transport_domain_in, in, opcode, 240 MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN); 241 MLX5_SET(alloc_transport_domain_in, in, uid, uid); 242 243 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 244 if (!err) 245 *tdn = MLX5_GET(alloc_transport_domain_out, out, 246 transport_domain); 247 248 return err; 249 } 250 251 void mlx5_cmd_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn, 252 u16 uid) 253 { 254 u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)] = {0}; 255 u32 out[MLX5_ST_SZ_DW(dealloc_transport_domain_out)] = {0}; 256 257 MLX5_SET(dealloc_transport_domain_in, in, opcode, 258 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN); 259 MLX5_SET(dealloc_transport_domain_in, in, uid, uid); 260 MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn); 261 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 262 } 263 264 void mlx5_cmd_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn, u16 uid) 265 { 266 u32 out[MLX5_ST_SZ_DW(dealloc_pd_out)] = {}; 267 u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)] = {}; 268 269 MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD); 270 MLX5_SET(dealloc_pd_in, in, pd, pdn); 271 MLX5_SET(dealloc_pd_in, in, uid, uid); 272 mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 273 } 274 275 int mlx5_cmd_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, 276 u32 qpn, u16 uid) 277 { 278 u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {}; 279 u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {}; 280 void *gid; 281 282 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG); 283 MLX5_SET(attach_to_mcg_in, in, qpn, qpn); 284 MLX5_SET(attach_to_mcg_in, in, uid, uid); 285 gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid); 286 memcpy(gid, mgid, sizeof(*mgid)); 287 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 288 } 289 290 int mlx5_cmd_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, 291 u32 qpn, u16 uid) 292 { 293 u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {}; 294 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {}; 295 void *gid; 296 297 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG); 298 MLX5_SET(detach_from_mcg_in, in, qpn, qpn); 299 MLX5_SET(detach_from_mcg_in, in, uid, uid); 300 gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid); 301 memcpy(gid, mgid, sizeof(*mgid)); 302 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 303 } 304 305 int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid) 306 { 307 u32 out[MLX5_ST_SZ_DW(alloc_xrcd_out)] = {}; 308 u32 in[MLX5_ST_SZ_DW(alloc_xrcd_in)] = {}; 309 int err; 310 311 MLX5_SET(alloc_xrcd_in, in, opcode, MLX5_CMD_OP_ALLOC_XRCD); 312 MLX5_SET(alloc_xrcd_in, in, uid, uid); 313 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 314 if (!err) 315 *xrcdn = MLX5_GET(alloc_xrcd_out, out, xrcd); 316 return err; 317 } 318 319 int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid) 320 { 321 u32 out[MLX5_ST_SZ_DW(dealloc_xrcd_out)] = {}; 322 u32 in[MLX5_ST_SZ_DW(dealloc_xrcd_in)] = {}; 323 324 MLX5_SET(dealloc_xrcd_in, in, opcode, MLX5_CMD_OP_DEALLOC_XRCD); 325 MLX5_SET(dealloc_xrcd_in, in, xrcd, xrcdn); 326 MLX5_SET(dealloc_xrcd_in, in, uid, uid); 327 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 328 } 329 330 int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id, 331 u16 uid) 332 { 333 u32 in[MLX5_ST_SZ_DW(alloc_q_counter_in)] = {0}; 334 u32 out[MLX5_ST_SZ_DW(alloc_q_counter_out)] = {0}; 335 int err; 336 337 MLX5_SET(alloc_q_counter_in, in, opcode, MLX5_CMD_OP_ALLOC_Q_COUNTER); 338 MLX5_SET(alloc_q_counter_in, in, uid, uid); 339 340 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 341 if (!err) 342 *counter_id = MLX5_GET(alloc_q_counter_out, out, 343 counter_set_id); 344 return err; 345 } 346 347 int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, 348 u16 opmod, u8 port) 349 { 350 int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out); 351 int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in); 352 int err = -ENOMEM; 353 void *data; 354 void *resp; 355 u32 *out; 356 u32 *in; 357 358 in = kzalloc(inlen, GFP_KERNEL); 359 out = kzalloc(outlen, GFP_KERNEL); 360 if (!in || !out) 361 goto out; 362 363 MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC); 364 MLX5_SET(mad_ifc_in, in, op_mod, opmod); 365 MLX5_SET(mad_ifc_in, in, port, port); 366 367 data = MLX5_ADDR_OF(mad_ifc_in, in, mad); 368 memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad)); 369 370 err = mlx5_cmd_exec(dev, in, inlen, out, outlen); 371 if (err) 372 goto out; 373 374 resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet); 375 memcpy(outb, resp, 376 MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet)); 377 378 out: 379 kfree(out); 380 kfree(in); 381 return err; 382 } 383