1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. 5 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 */ 35 36 #include <linux/module.h> 37 #include <linux/init.h> 38 #include <linux/errno.h> 39 #include <linux/pci.h> 40 #include <linux/dma-mapping.h> 41 #include <linux/slab.h> 42 #include <linux/io-mapping.h> 43 #include <linux/delay.h> 44 #include <linux/kmod.h> 45 46 #include <linux/mlx4/device.h> 47 #include <linux/mlx4/doorbell.h> 48 49 #include "mlx4.h" 50 #include "fw.h" 51 #include "icm.h" 52 53 MODULE_AUTHOR("Roland Dreier"); 54 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver"); 55 MODULE_LICENSE("Dual BSD/GPL"); 56 MODULE_VERSION(DRV_VERSION); 57 58 struct workqueue_struct *mlx4_wq; 59 60 #ifdef CONFIG_MLX4_DEBUG 61 62 int mlx4_debug_level = 0; 63 module_param_named(debug_level, mlx4_debug_level, int, 0644); 64 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 65 66 #endif /* CONFIG_MLX4_DEBUG */ 67 68 #ifdef CONFIG_PCI_MSI 69 70 static int msi_x = 1; 71 module_param(msi_x, int, 0444); 72 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 73 74 #else /* CONFIG_PCI_MSI */ 75 76 #define msi_x (0) 77 78 #endif /* CONFIG_PCI_MSI */ 79 80 static uint8_t num_vfs[3] = {0, 0, 0}; 81 static int num_vfs_argc; 82 module_param_array(num_vfs, byte , &num_vfs_argc, 0444); 83 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n" 84 "num_vfs=port1,port2,port1+2"); 85 86 static uint8_t probe_vf[3] = {0, 0, 0}; 87 static int probe_vfs_argc; 88 module_param_array(probe_vf, byte, &probe_vfs_argc, 0444); 89 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n" 90 "probe_vf=port1,port2,port1+2"); 91 92 int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE; 93 module_param_named(log_num_mgm_entry_size, 94 mlx4_log_num_mgm_entry_size, int, 0444); 95 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num" 96 " of qp per mcg, for example:" 97 " 10 gives 248.range: 7 <=" 98 " log_num_mgm_entry_size <= 12." 99 " To activate device managed" 100 " flow steering when available, set to -1"); 101 102 static bool enable_64b_cqe_eqe = true; 103 module_param(enable_64b_cqe_eqe, bool, 0444); 104 MODULE_PARM_DESC(enable_64b_cqe_eqe, 105 "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)"); 106 107 #define PF_CONTEXT_BEHAVIOUR_MASK (MLX4_FUNC_CAP_64B_EQE_CQE | \ 108 MLX4_FUNC_CAP_EQE_CQE_STRIDE | \ 109 MLX4_FUNC_CAP_DMFS_A0_STATIC) 110 111 #define RESET_PERSIST_MASK_FLAGS (MLX4_FLAG_SRIOV) 112 113 static char mlx4_version[] = 114 DRV_NAME ": Mellanox ConnectX core driver v" 115 DRV_VERSION " (" DRV_RELDATE ")\n"; 116 117 static struct mlx4_profile default_profile = { 118 .num_qp = 1 << 18, 119 .num_srq = 1 << 16, 120 .rdmarc_per_qp = 1 << 4, 121 .num_cq = 1 << 16, 122 .num_mcg = 1 << 13, 123 .num_mpt = 1 << 19, 124 .num_mtt = 1 << 20, /* It is really num mtt segements */ 125 }; 126 127 static struct mlx4_profile low_mem_profile = { 128 .num_qp = 1 << 17, 129 .num_srq = 1 << 6, 130 .rdmarc_per_qp = 1 << 4, 131 .num_cq = 1 << 8, 132 .num_mcg = 1 << 8, 133 .num_mpt = 1 << 9, 134 .num_mtt = 1 << 7, 135 }; 136 137 static int log_num_mac = 7; 138 module_param_named(log_num_mac, log_num_mac, int, 0444); 139 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)"); 140 141 static int log_num_vlan; 142 module_param_named(log_num_vlan, log_num_vlan, int, 0444); 143 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)"); 144 /* Log2 max number of VLANs per ETH port (0-7) */ 145 #define MLX4_LOG_NUM_VLANS 7 146 #define MLX4_MIN_LOG_NUM_VLANS 0 147 #define MLX4_MIN_LOG_NUM_MAC 1 148 149 static bool use_prio; 150 module_param_named(use_prio, use_prio, bool, 0444); 151 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)"); 152 153 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG); 154 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444); 155 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)"); 156 157 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE}; 158 static int arr_argc = 2; 159 module_param_array(port_type_array, int, &arr_argc, 0444); 160 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default " 161 "1 for IB, 2 for Ethernet"); 162 163 struct mlx4_port_config { 164 struct list_head list; 165 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1]; 166 struct pci_dev *pdev; 167 }; 168 169 static atomic_t pf_loading = ATOMIC_INIT(0); 170 171 int mlx4_check_port_params(struct mlx4_dev *dev, 172 enum mlx4_port_type *port_type) 173 { 174 int i; 175 176 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) { 177 for (i = 0; i < dev->caps.num_ports - 1; i++) { 178 if (port_type[i] != port_type[i + 1]) { 179 mlx4_err(dev, "Only same port types supported on this HCA, aborting\n"); 180 return -EINVAL; 181 } 182 } 183 } 184 185 for (i = 0; i < dev->caps.num_ports; i++) { 186 if (!(port_type[i] & dev->caps.supported_type[i+1])) { 187 mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n", 188 i + 1); 189 return -EINVAL; 190 } 191 } 192 return 0; 193 } 194 195 static void mlx4_set_port_mask(struct mlx4_dev *dev) 196 { 197 int i; 198 199 for (i = 1; i <= dev->caps.num_ports; ++i) 200 dev->caps.port_mask[i] = dev->caps.port_type[i]; 201 } 202 203 enum { 204 MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0, 205 }; 206 207 static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) 208 { 209 int err = 0; 210 struct mlx4_func func; 211 212 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) { 213 err = mlx4_QUERY_FUNC(dev, &func, 0); 214 if (err) { 215 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); 216 return err; 217 } 218 dev_cap->max_eqs = func.max_eq; 219 dev_cap->reserved_eqs = func.rsvd_eqs; 220 dev_cap->reserved_uars = func.rsvd_uars; 221 err |= MLX4_QUERY_FUNC_NUM_SYS_EQS; 222 } 223 return err; 224 } 225 226 static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev) 227 { 228 struct mlx4_caps *dev_cap = &dev->caps; 229 230 /* FW not supporting or cancelled by user */ 231 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) || 232 !(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) 233 return; 234 235 /* Must have 64B CQE_EQE enabled by FW to use bigger stride 236 * When FW has NCSI it may decide not to report 64B CQE/EQEs 237 */ 238 if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) || 239 !(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) { 240 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; 241 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; 242 return; 243 } 244 245 if (cache_line_size() == 128 || cache_line_size() == 256) { 246 mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n"); 247 /* Changing the real data inside CQE size to 32B */ 248 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE; 249 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE; 250 251 if (mlx4_is_master(dev)) 252 dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE; 253 } else { 254 if (cache_line_size() != 32 && cache_line_size() != 64) 255 mlx4_dbg(dev, "Disabling CQE stride, cacheLine size unsupported\n"); 256 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; 257 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; 258 } 259 } 260 261 static int _mlx4_dev_port(struct mlx4_dev *dev, int port, 262 struct mlx4_port_cap *port_cap) 263 { 264 dev->caps.vl_cap[port] = port_cap->max_vl; 265 dev->caps.ib_mtu_cap[port] = port_cap->ib_mtu; 266 dev->phys_caps.gid_phys_table_len[port] = port_cap->max_gids; 267 dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys; 268 /* set gid and pkey table operating lengths by default 269 * to non-sriov values 270 */ 271 dev->caps.gid_table_len[port] = port_cap->max_gids; 272 dev->caps.pkey_table_len[port] = port_cap->max_pkeys; 273 dev->caps.port_width_cap[port] = port_cap->max_port_width; 274 dev->caps.eth_mtu_cap[port] = port_cap->eth_mtu; 275 dev->caps.def_mac[port] = port_cap->def_mac; 276 dev->caps.supported_type[port] = port_cap->supported_port_types; 277 dev->caps.suggested_type[port] = port_cap->suggested_type; 278 dev->caps.default_sense[port] = port_cap->default_sense; 279 dev->caps.trans_type[port] = port_cap->trans_type; 280 dev->caps.vendor_oui[port] = port_cap->vendor_oui; 281 dev->caps.wavelength[port] = port_cap->wavelength; 282 dev->caps.trans_code[port] = port_cap->trans_code; 283 284 return 0; 285 } 286 287 static int mlx4_dev_port(struct mlx4_dev *dev, int port, 288 struct mlx4_port_cap *port_cap) 289 { 290 int err = 0; 291 292 err = mlx4_QUERY_PORT(dev, port, port_cap); 293 294 if (err) 295 mlx4_err(dev, "QUERY_PORT command failed.\n"); 296 297 return err; 298 } 299 300 static inline void mlx4_enable_ignore_fcs(struct mlx4_dev *dev) 301 { 302 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)) 303 return; 304 305 if (mlx4_is_mfunc(dev)) { 306 mlx4_dbg(dev, "SRIOV mode - Disabling Ignore FCS"); 307 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS; 308 return; 309 } 310 311 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)) { 312 mlx4_dbg(dev, 313 "Keep FCS is not supported - Disabling Ignore FCS"); 314 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS; 315 return; 316 } 317 } 318 319 #define MLX4_A0_STEERING_TABLE_SIZE 256 320 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) 321 { 322 int err; 323 int i; 324 325 err = mlx4_QUERY_DEV_CAP(dev, dev_cap); 326 if (err) { 327 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); 328 return err; 329 } 330 mlx4_dev_cap_dump(dev, dev_cap); 331 332 if (dev_cap->min_page_sz > PAGE_SIZE) { 333 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n", 334 dev_cap->min_page_sz, PAGE_SIZE); 335 return -ENODEV; 336 } 337 if (dev_cap->num_ports > MLX4_MAX_PORTS) { 338 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n", 339 dev_cap->num_ports, MLX4_MAX_PORTS); 340 return -ENODEV; 341 } 342 343 if (dev_cap->uar_size > pci_resource_len(dev->persist->pdev, 2)) { 344 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n", 345 dev_cap->uar_size, 346 (unsigned long long) 347 pci_resource_len(dev->persist->pdev, 2)); 348 return -ENODEV; 349 } 350 351 dev->caps.num_ports = dev_cap->num_ports; 352 dev->caps.num_sys_eqs = dev_cap->num_sys_eqs; 353 dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ? 354 dev->caps.num_sys_eqs : 355 MLX4_MAX_EQ_NUM; 356 for (i = 1; i <= dev->caps.num_ports; ++i) { 357 err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i); 358 if (err) { 359 mlx4_err(dev, "QUERY_PORT command failed, aborting\n"); 360 return err; 361 } 362 } 363 364 dev->caps.uar_page_size = PAGE_SIZE; 365 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE; 366 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay; 367 dev->caps.bf_reg_size = dev_cap->bf_reg_size; 368 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page; 369 dev->caps.max_sq_sg = dev_cap->max_sq_sg; 370 dev->caps.max_rq_sg = dev_cap->max_rq_sg; 371 dev->caps.max_wqes = dev_cap->max_qp_sz; 372 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp; 373 dev->caps.max_srq_wqes = dev_cap->max_srq_sz; 374 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1; 375 dev->caps.reserved_srqs = dev_cap->reserved_srqs; 376 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz; 377 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz; 378 /* 379 * Subtract 1 from the limit because we need to allocate a 380 * spare CQE so the HCA HW can tell the difference between an 381 * empty CQ and a full CQ. 382 */ 383 dev->caps.max_cqes = dev_cap->max_cq_sz - 1; 384 dev->caps.reserved_cqs = dev_cap->reserved_cqs; 385 dev->caps.reserved_eqs = dev_cap->reserved_eqs; 386 dev->caps.reserved_mtts = dev_cap->reserved_mtts; 387 dev->caps.reserved_mrws = dev_cap->reserved_mrws; 388 389 /* The first 128 UARs are used for EQ doorbells */ 390 dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars); 391 dev->caps.reserved_pds = dev_cap->reserved_pds; 392 dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ? 393 dev_cap->reserved_xrcds : 0; 394 dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ? 395 dev_cap->max_xrcds : 0; 396 dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz; 397 398 dev->caps.max_msg_sz = dev_cap->max_msg_sz; 399 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1); 400 dev->caps.flags = dev_cap->flags; 401 dev->caps.flags2 = dev_cap->flags2; 402 dev->caps.bmme_flags = dev_cap->bmme_flags; 403 dev->caps.reserved_lkey = dev_cap->reserved_lkey; 404 dev->caps.stat_rate_support = dev_cap->stat_rate_support; 405 dev->caps.max_gso_sz = dev_cap->max_gso_sz; 406 dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz; 407 408 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) { 409 struct mlx4_init_hca_param hca_param; 410 411 memset(&hca_param, 0, sizeof(hca_param)); 412 err = mlx4_QUERY_HCA(dev, &hca_param); 413 /* Turn off PHV_EN flag in case phv_check_en is set. 414 * phv_check_en is a HW check that parse the packet and verify 415 * phv bit was reported correctly in the wqe. To allow QinQ 416 * PHV_EN flag should be set and phv_check_en must be cleared 417 * otherwise QinQ packets will be drop by the HW. 418 */ 419 if (err || hca_param.phv_check_en) 420 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_PHV_EN; 421 } 422 423 /* Sense port always allowed on supported devices for ConnectX-1 and -2 */ 424 if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT) 425 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; 426 /* Don't do sense port on multifunction devices (for now at least) */ 427 if (mlx4_is_mfunc(dev)) 428 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; 429 430 if (mlx4_low_memory_profile()) { 431 dev->caps.log_num_macs = MLX4_MIN_LOG_NUM_MAC; 432 dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS; 433 } else { 434 dev->caps.log_num_macs = log_num_mac; 435 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS; 436 } 437 438 for (i = 1; i <= dev->caps.num_ports; ++i) { 439 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE; 440 if (dev->caps.supported_type[i]) { 441 /* if only ETH is supported - assign ETH */ 442 if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH) 443 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH; 444 /* if only IB is supported, assign IB */ 445 else if (dev->caps.supported_type[i] == 446 MLX4_PORT_TYPE_IB) 447 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB; 448 else { 449 /* if IB and ETH are supported, we set the port 450 * type according to user selection of port type; 451 * if user selected none, take the FW hint */ 452 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE) 453 dev->caps.port_type[i] = dev->caps.suggested_type[i] ? 454 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB; 455 else 456 dev->caps.port_type[i] = port_type_array[i - 1]; 457 } 458 } 459 /* 460 * Link sensing is allowed on the port if 3 conditions are true: 461 * 1. Both protocols are supported on the port. 462 * 2. Different types are supported on the port 463 * 3. FW declared that it supports link sensing 464 */ 465 mlx4_priv(dev)->sense.sense_allowed[i] = 466 ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) && 467 (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) && 468 (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)); 469 470 /* 471 * If "default_sense" bit is set, we move the port to "AUTO" mode 472 * and perform sense_port FW command to try and set the correct 473 * port type from beginning 474 */ 475 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) { 476 enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE; 477 dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO; 478 mlx4_SENSE_PORT(dev, i, &sensed_port); 479 if (sensed_port != MLX4_PORT_TYPE_NONE) 480 dev->caps.port_type[i] = sensed_port; 481 } else { 482 dev->caps.possible_type[i] = dev->caps.port_type[i]; 483 } 484 485 if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) { 486 dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs; 487 mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n", 488 i, 1 << dev->caps.log_num_macs); 489 } 490 if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) { 491 dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans; 492 mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n", 493 i, 1 << dev->caps.log_num_vlans); 494 } 495 } 496 497 if (mlx4_is_master(dev) && (dev->caps.num_ports == 2) && 498 (port_type_array[0] == MLX4_PORT_TYPE_IB) && 499 (port_type_array[1] == MLX4_PORT_TYPE_ETH)) { 500 mlx4_warn(dev, 501 "Granular QoS per VF not supported with IB/Eth configuration\n"); 502 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_QOS_VPP; 503 } 504 505 dev->caps.max_counters = dev_cap->max_counters; 506 507 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps; 508 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] = 509 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] = 510 (1 << dev->caps.log_num_macs) * 511 (1 << dev->caps.log_num_vlans) * 512 dev->caps.num_ports; 513 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH; 514 515 if (dev_cap->dmfs_high_rate_qpn_base > 0 && 516 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) 517 dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base; 518 else 519 dev->caps.dmfs_high_rate_qpn_base = 520 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; 521 522 if (dev_cap->dmfs_high_rate_qpn_range > 0 && 523 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) { 524 dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range; 525 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT; 526 dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0; 527 } else { 528 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED; 529 dev->caps.dmfs_high_rate_qpn_base = 530 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; 531 dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE; 532 } 533 534 dev->caps.rl_caps = dev_cap->rl_caps; 535 536 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] = 537 dev->caps.dmfs_high_rate_qpn_range; 538 539 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] + 540 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] + 541 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] + 542 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH]; 543 544 dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0; 545 546 if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) { 547 if (dev_cap->flags & 548 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) { 549 mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n"); 550 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE; 551 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE; 552 } 553 554 if (dev_cap->flags2 & 555 (MLX4_DEV_CAP_FLAG2_CQE_STRIDE | 556 MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) { 557 mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n"); 558 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; 559 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; 560 } 561 } 562 563 if ((dev->caps.flags & 564 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) && 565 mlx4_is_master(dev)) 566 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE; 567 568 if (!mlx4_is_slave(dev)) { 569 mlx4_enable_cqe_eqe_stride(dev); 570 dev->caps.alloc_res_qp_mask = 571 (dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) | 572 MLX4_RESERVE_A0_QP; 573 574 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) && 575 dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) { 576 mlx4_warn(dev, "Old device ETS support detected\n"); 577 mlx4_warn(dev, "Consider upgrading device FW.\n"); 578 dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG; 579 } 580 581 } else { 582 dev->caps.alloc_res_qp_mask = 0; 583 } 584 585 mlx4_enable_ignore_fcs(dev); 586 587 return 0; 588 } 589 590 static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev, 591 enum pci_bus_speed *speed, 592 enum pcie_link_width *width) 593 { 594 u32 lnkcap1, lnkcap2; 595 int err1, err2; 596 597 #define PCIE_MLW_CAP_SHIFT 4 /* start of MLW mask in link capabilities */ 598 599 *speed = PCI_SPEED_UNKNOWN; 600 *width = PCIE_LNK_WIDTH_UNKNOWN; 601 602 err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP, 603 &lnkcap1); 604 err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2, 605 &lnkcap2); 606 if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */ 607 if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB) 608 *speed = PCIE_SPEED_8_0GT; 609 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB) 610 *speed = PCIE_SPEED_5_0GT; 611 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB) 612 *speed = PCIE_SPEED_2_5GT; 613 } 614 if (!err1) { 615 *width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT; 616 if (!lnkcap2) { /* pre-r3.0 */ 617 if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB) 618 *speed = PCIE_SPEED_5_0GT; 619 else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB) 620 *speed = PCIE_SPEED_2_5GT; 621 } 622 } 623 624 if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) { 625 return err1 ? err1 : 626 err2 ? err2 : -EINVAL; 627 } 628 return 0; 629 } 630 631 static void mlx4_check_pcie_caps(struct mlx4_dev *dev) 632 { 633 enum pcie_link_width width, width_cap; 634 enum pci_bus_speed speed, speed_cap; 635 int err; 636 637 #define PCIE_SPEED_STR(speed) \ 638 (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \ 639 speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \ 640 speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \ 641 "Unknown") 642 643 err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap); 644 if (err) { 645 mlx4_warn(dev, 646 "Unable to determine PCIe device BW capabilities\n"); 647 return; 648 } 649 650 err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width); 651 if (err || speed == PCI_SPEED_UNKNOWN || 652 width == PCIE_LNK_WIDTH_UNKNOWN) { 653 mlx4_warn(dev, 654 "Unable to determine PCI device chain minimum BW\n"); 655 return; 656 } 657 658 if (width != width_cap || speed != speed_cap) 659 mlx4_warn(dev, 660 "PCIe BW is different than device's capability\n"); 661 662 mlx4_info(dev, "PCIe link speed is %s, device supports %s\n", 663 PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap)); 664 mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n", 665 width, width_cap); 666 return; 667 } 668 669 /*The function checks if there are live vf, return the num of them*/ 670 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev) 671 { 672 struct mlx4_priv *priv = mlx4_priv(dev); 673 struct mlx4_slave_state *s_state; 674 int i; 675 int ret = 0; 676 677 for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) { 678 s_state = &priv->mfunc.master.slave_state[i]; 679 if (s_state->active && s_state->last_cmd != 680 MLX4_COMM_CMD_RESET) { 681 mlx4_warn(dev, "%s: slave: %d is still active\n", 682 __func__, i); 683 ret++; 684 } 685 } 686 return ret; 687 } 688 689 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey) 690 { 691 u32 qk = MLX4_RESERVED_QKEY_BASE; 692 693 if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX || 694 qpn < dev->phys_caps.base_proxy_sqpn) 695 return -EINVAL; 696 697 if (qpn >= dev->phys_caps.base_tunnel_sqpn) 698 /* tunnel qp */ 699 qk += qpn - dev->phys_caps.base_tunnel_sqpn; 700 else 701 qk += qpn - dev->phys_caps.base_proxy_sqpn; 702 *qkey = qk; 703 return 0; 704 } 705 EXPORT_SYMBOL(mlx4_get_parav_qkey); 706 707 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val) 708 { 709 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); 710 711 if (!mlx4_is_master(dev)) 712 return; 713 714 priv->virt2phys_pkey[slave][port - 1][i] = val; 715 } 716 EXPORT_SYMBOL(mlx4_sync_pkey_table); 717 718 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid) 719 { 720 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); 721 722 if (!mlx4_is_master(dev)) 723 return; 724 725 priv->slave_node_guids[slave] = guid; 726 } 727 EXPORT_SYMBOL(mlx4_put_slave_node_guid); 728 729 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave) 730 { 731 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); 732 733 if (!mlx4_is_master(dev)) 734 return 0; 735 736 return priv->slave_node_guids[slave]; 737 } 738 EXPORT_SYMBOL(mlx4_get_slave_node_guid); 739 740 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave) 741 { 742 struct mlx4_priv *priv = mlx4_priv(dev); 743 struct mlx4_slave_state *s_slave; 744 745 if (!mlx4_is_master(dev)) 746 return 0; 747 748 s_slave = &priv->mfunc.master.slave_state[slave]; 749 return !!s_slave->active; 750 } 751 EXPORT_SYMBOL(mlx4_is_slave_active); 752 753 static void slave_adjust_steering_mode(struct mlx4_dev *dev, 754 struct mlx4_dev_cap *dev_cap, 755 struct mlx4_init_hca_param *hca_param) 756 { 757 dev->caps.steering_mode = hca_param->steering_mode; 758 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { 759 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry; 760 dev->caps.fs_log_max_ucast_qp_range_size = 761 dev_cap->fs_log_max_ucast_qp_range_size; 762 } else 763 dev->caps.num_qp_per_mgm = 764 4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2); 765 766 mlx4_dbg(dev, "Steering mode is: %s\n", 767 mlx4_steering_mode_str(dev->caps.steering_mode)); 768 } 769 770 static int mlx4_slave_cap(struct mlx4_dev *dev) 771 { 772 int err; 773 u32 page_size; 774 struct mlx4_dev_cap dev_cap; 775 struct mlx4_func_cap func_cap; 776 struct mlx4_init_hca_param hca_param; 777 u8 i; 778 779 memset(&hca_param, 0, sizeof(hca_param)); 780 err = mlx4_QUERY_HCA(dev, &hca_param); 781 if (err) { 782 mlx4_err(dev, "QUERY_HCA command failed, aborting\n"); 783 return err; 784 } 785 786 /* fail if the hca has an unknown global capability 787 * at this time global_caps should be always zeroed 788 */ 789 if (hca_param.global_caps) { 790 mlx4_err(dev, "Unknown hca global capabilities\n"); 791 return -ENOSYS; 792 } 793 794 mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz; 795 796 dev->caps.hca_core_clock = hca_param.hca_core_clock; 797 798 memset(&dev_cap, 0, sizeof(dev_cap)); 799 dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp; 800 err = mlx4_dev_cap(dev, &dev_cap); 801 if (err) { 802 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); 803 return err; 804 } 805 806 err = mlx4_QUERY_FW(dev); 807 if (err) 808 mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n"); 809 810 page_size = ~dev->caps.page_size_cap + 1; 811 mlx4_warn(dev, "HCA minimum page size:%d\n", page_size); 812 if (page_size > PAGE_SIZE) { 813 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n", 814 page_size, PAGE_SIZE); 815 return -ENODEV; 816 } 817 818 /* slave gets uar page size from QUERY_HCA fw command */ 819 dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12); 820 821 /* TODO: relax this assumption */ 822 if (dev->caps.uar_page_size != PAGE_SIZE) { 823 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n", 824 dev->caps.uar_page_size, PAGE_SIZE); 825 return -ENODEV; 826 } 827 828 memset(&func_cap, 0, sizeof(func_cap)); 829 err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap); 830 if (err) { 831 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n", 832 err); 833 return err; 834 } 835 836 if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) != 837 PF_CONTEXT_BEHAVIOUR_MASK) { 838 mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n", 839 func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK); 840 return -ENOSYS; 841 } 842 843 dev->caps.num_ports = func_cap.num_ports; 844 dev->quotas.qp = func_cap.qp_quota; 845 dev->quotas.srq = func_cap.srq_quota; 846 dev->quotas.cq = func_cap.cq_quota; 847 dev->quotas.mpt = func_cap.mpt_quota; 848 dev->quotas.mtt = func_cap.mtt_quota; 849 dev->caps.num_qps = 1 << hca_param.log_num_qps; 850 dev->caps.num_srqs = 1 << hca_param.log_num_srqs; 851 dev->caps.num_cqs = 1 << hca_param.log_num_cqs; 852 dev->caps.num_mpts = 1 << hca_param.log_mpt_sz; 853 dev->caps.num_eqs = func_cap.max_eq; 854 dev->caps.reserved_eqs = func_cap.reserved_eq; 855 dev->caps.reserved_lkey = func_cap.reserved_lkey; 856 dev->caps.num_pds = MLX4_NUM_PDS; 857 dev->caps.num_mgms = 0; 858 dev->caps.num_amgms = 0; 859 860 if (dev->caps.num_ports > MLX4_MAX_PORTS) { 861 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n", 862 dev->caps.num_ports, MLX4_MAX_PORTS); 863 return -ENODEV; 864 } 865 866 dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL); 867 dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); 868 dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); 869 dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); 870 dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); 871 872 if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy || 873 !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy || 874 !dev->caps.qp0_qkey) { 875 err = -ENOMEM; 876 goto err_mem; 877 } 878 879 for (i = 1; i <= dev->caps.num_ports; ++i) { 880 err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap); 881 if (err) { 882 mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n", 883 i, err); 884 goto err_mem; 885 } 886 dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey; 887 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn; 888 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn; 889 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn; 890 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn; 891 dev->caps.port_mask[i] = dev->caps.port_type[i]; 892 dev->caps.phys_port_id[i] = func_cap.phys_port_id; 893 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i, 894 &dev->caps.gid_table_len[i], 895 &dev->caps.pkey_table_len[i])) 896 goto err_mem; 897 } 898 899 if (dev->caps.uar_page_size * (dev->caps.num_uars - 900 dev->caps.reserved_uars) > 901 pci_resource_len(dev->persist->pdev, 902 2)) { 903 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n", 904 dev->caps.uar_page_size * dev->caps.num_uars, 905 (unsigned long long) 906 pci_resource_len(dev->persist->pdev, 2)); 907 goto err_mem; 908 } 909 910 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) { 911 dev->caps.eqe_size = 64; 912 dev->caps.eqe_factor = 1; 913 } else { 914 dev->caps.eqe_size = 32; 915 dev->caps.eqe_factor = 0; 916 } 917 918 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) { 919 dev->caps.cqe_size = 64; 920 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE; 921 } else { 922 dev->caps.cqe_size = 32; 923 } 924 925 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) { 926 dev->caps.eqe_size = hca_param.eqe_size; 927 dev->caps.eqe_factor = 0; 928 } 929 930 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) { 931 dev->caps.cqe_size = hca_param.cqe_size; 932 /* User still need to know when CQE > 32B */ 933 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE; 934 } 935 936 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; 937 mlx4_warn(dev, "Timestamping is not supported in slave mode\n"); 938 939 slave_adjust_steering_mode(dev, &dev_cap, &hca_param); 940 mlx4_dbg(dev, "RSS support for IP fragments is %s\n", 941 hca_param.rss_ip_frags ? "on" : "off"); 942 943 if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP && 944 dev->caps.bf_reg_size) 945 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP; 946 947 if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP) 948 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP; 949 950 return 0; 951 952 err_mem: 953 kfree(dev->caps.qp0_qkey); 954 kfree(dev->caps.qp0_tunnel); 955 kfree(dev->caps.qp0_proxy); 956 kfree(dev->caps.qp1_tunnel); 957 kfree(dev->caps.qp1_proxy); 958 dev->caps.qp0_qkey = NULL; 959 dev->caps.qp0_tunnel = NULL; 960 dev->caps.qp0_proxy = NULL; 961 dev->caps.qp1_tunnel = NULL; 962 dev->caps.qp1_proxy = NULL; 963 964 return err; 965 } 966 967 static void mlx4_request_modules(struct mlx4_dev *dev) 968 { 969 int port; 970 int has_ib_port = false; 971 int has_eth_port = false; 972 #define EN_DRV_NAME "mlx4_en" 973 #define IB_DRV_NAME "mlx4_ib" 974 975 for (port = 1; port <= dev->caps.num_ports; port++) { 976 if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB) 977 has_ib_port = true; 978 else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH) 979 has_eth_port = true; 980 } 981 982 if (has_eth_port) 983 request_module_nowait(EN_DRV_NAME); 984 if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)) 985 request_module_nowait(IB_DRV_NAME); 986 } 987 988 /* 989 * Change the port configuration of the device. 990 * Every user of this function must hold the port mutex. 991 */ 992 int mlx4_change_port_types(struct mlx4_dev *dev, 993 enum mlx4_port_type *port_types) 994 { 995 int err = 0; 996 int change = 0; 997 int port; 998 999 for (port = 0; port < dev->caps.num_ports; port++) { 1000 /* Change the port type only if the new type is different 1001 * from the current, and not set to Auto */ 1002 if (port_types[port] != dev->caps.port_type[port + 1]) 1003 change = 1; 1004 } 1005 if (change) { 1006 mlx4_unregister_device(dev); 1007 for (port = 1; port <= dev->caps.num_ports; port++) { 1008 mlx4_CLOSE_PORT(dev, port); 1009 dev->caps.port_type[port] = port_types[port - 1]; 1010 err = mlx4_SET_PORT(dev, port, -1); 1011 if (err) { 1012 mlx4_err(dev, "Failed to set port %d, aborting\n", 1013 port); 1014 goto out; 1015 } 1016 } 1017 mlx4_set_port_mask(dev); 1018 err = mlx4_register_device(dev); 1019 if (err) { 1020 mlx4_err(dev, "Failed to register device\n"); 1021 goto out; 1022 } 1023 mlx4_request_modules(dev); 1024 } 1025 1026 out: 1027 return err; 1028 } 1029 1030 static ssize_t show_port_type(struct device *dev, 1031 struct device_attribute *attr, 1032 char *buf) 1033 { 1034 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, 1035 port_attr); 1036 struct mlx4_dev *mdev = info->dev; 1037 char type[8]; 1038 1039 sprintf(type, "%s", 1040 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ? 1041 "ib" : "eth"); 1042 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO) 1043 sprintf(buf, "auto (%s)\n", type); 1044 else 1045 sprintf(buf, "%s\n", type); 1046 1047 return strlen(buf); 1048 } 1049 1050 static ssize_t set_port_type(struct device *dev, 1051 struct device_attribute *attr, 1052 const char *buf, size_t count) 1053 { 1054 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, 1055 port_attr); 1056 struct mlx4_dev *mdev = info->dev; 1057 struct mlx4_priv *priv = mlx4_priv(mdev); 1058 enum mlx4_port_type types[MLX4_MAX_PORTS]; 1059 enum mlx4_port_type new_types[MLX4_MAX_PORTS]; 1060 static DEFINE_MUTEX(set_port_type_mutex); 1061 int i; 1062 int err = 0; 1063 1064 mutex_lock(&set_port_type_mutex); 1065 1066 if (!strcmp(buf, "ib\n")) 1067 info->tmp_type = MLX4_PORT_TYPE_IB; 1068 else if (!strcmp(buf, "eth\n")) 1069 info->tmp_type = MLX4_PORT_TYPE_ETH; 1070 else if (!strcmp(buf, "auto\n")) 1071 info->tmp_type = MLX4_PORT_TYPE_AUTO; 1072 else { 1073 mlx4_err(mdev, "%s is not supported port type\n", buf); 1074 err = -EINVAL; 1075 goto err_out; 1076 } 1077 1078 mlx4_stop_sense(mdev); 1079 mutex_lock(&priv->port_mutex); 1080 /* Possible type is always the one that was delivered */ 1081 mdev->caps.possible_type[info->port] = info->tmp_type; 1082 1083 for (i = 0; i < mdev->caps.num_ports; i++) { 1084 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type : 1085 mdev->caps.possible_type[i+1]; 1086 if (types[i] == MLX4_PORT_TYPE_AUTO) 1087 types[i] = mdev->caps.port_type[i+1]; 1088 } 1089 1090 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) && 1091 !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) { 1092 for (i = 1; i <= mdev->caps.num_ports; i++) { 1093 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) { 1094 mdev->caps.possible_type[i] = mdev->caps.port_type[i]; 1095 err = -EINVAL; 1096 } 1097 } 1098 } 1099 if (err) { 1100 mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n"); 1101 goto out; 1102 } 1103 1104 mlx4_do_sense_ports(mdev, new_types, types); 1105 1106 err = mlx4_check_port_params(mdev, new_types); 1107 if (err) 1108 goto out; 1109 1110 /* We are about to apply the changes after the configuration 1111 * was verified, no need to remember the temporary types 1112 * any more */ 1113 for (i = 0; i < mdev->caps.num_ports; i++) 1114 priv->port[i + 1].tmp_type = 0; 1115 1116 err = mlx4_change_port_types(mdev, new_types); 1117 1118 out: 1119 mlx4_start_sense(mdev); 1120 mutex_unlock(&priv->port_mutex); 1121 err_out: 1122 mutex_unlock(&set_port_type_mutex); 1123 1124 return err ? err : count; 1125 } 1126 1127 enum ibta_mtu { 1128 IB_MTU_256 = 1, 1129 IB_MTU_512 = 2, 1130 IB_MTU_1024 = 3, 1131 IB_MTU_2048 = 4, 1132 IB_MTU_4096 = 5 1133 }; 1134 1135 static inline int int_to_ibta_mtu(int mtu) 1136 { 1137 switch (mtu) { 1138 case 256: return IB_MTU_256; 1139 case 512: return IB_MTU_512; 1140 case 1024: return IB_MTU_1024; 1141 case 2048: return IB_MTU_2048; 1142 case 4096: return IB_MTU_4096; 1143 default: return -1; 1144 } 1145 } 1146 1147 static inline int ibta_mtu_to_int(enum ibta_mtu mtu) 1148 { 1149 switch (mtu) { 1150 case IB_MTU_256: return 256; 1151 case IB_MTU_512: return 512; 1152 case IB_MTU_1024: return 1024; 1153 case IB_MTU_2048: return 2048; 1154 case IB_MTU_4096: return 4096; 1155 default: return -1; 1156 } 1157 } 1158 1159 static ssize_t show_port_ib_mtu(struct device *dev, 1160 struct device_attribute *attr, 1161 char *buf) 1162 { 1163 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, 1164 port_mtu_attr); 1165 struct mlx4_dev *mdev = info->dev; 1166 1167 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) 1168 mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); 1169 1170 sprintf(buf, "%d\n", 1171 ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port])); 1172 return strlen(buf); 1173 } 1174 1175 static ssize_t set_port_ib_mtu(struct device *dev, 1176 struct device_attribute *attr, 1177 const char *buf, size_t count) 1178 { 1179 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, 1180 port_mtu_attr); 1181 struct mlx4_dev *mdev = info->dev; 1182 struct mlx4_priv *priv = mlx4_priv(mdev); 1183 int err, port, mtu, ibta_mtu = -1; 1184 1185 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) { 1186 mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); 1187 return -EINVAL; 1188 } 1189 1190 err = kstrtoint(buf, 0, &mtu); 1191 if (!err) 1192 ibta_mtu = int_to_ibta_mtu(mtu); 1193 1194 if (err || ibta_mtu < 0) { 1195 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf); 1196 return -EINVAL; 1197 } 1198 1199 mdev->caps.port_ib_mtu[info->port] = ibta_mtu; 1200 1201 mlx4_stop_sense(mdev); 1202 mutex_lock(&priv->port_mutex); 1203 mlx4_unregister_device(mdev); 1204 for (port = 1; port <= mdev->caps.num_ports; port++) { 1205 mlx4_CLOSE_PORT(mdev, port); 1206 err = mlx4_SET_PORT(mdev, port, -1); 1207 if (err) { 1208 mlx4_err(mdev, "Failed to set port %d, aborting\n", 1209 port); 1210 goto err_set_port; 1211 } 1212 } 1213 err = mlx4_register_device(mdev); 1214 err_set_port: 1215 mutex_unlock(&priv->port_mutex); 1216 mlx4_start_sense(mdev); 1217 return err ? err : count; 1218 } 1219 1220 int mlx4_bond(struct mlx4_dev *dev) 1221 { 1222 int ret = 0; 1223 struct mlx4_priv *priv = mlx4_priv(dev); 1224 1225 mutex_lock(&priv->bond_mutex); 1226 1227 if (!mlx4_is_bonded(dev)) 1228 ret = mlx4_do_bond(dev, true); 1229 else 1230 ret = 0; 1231 1232 mutex_unlock(&priv->bond_mutex); 1233 if (ret) 1234 mlx4_err(dev, "Failed to bond device: %d\n", ret); 1235 else 1236 mlx4_dbg(dev, "Device is bonded\n"); 1237 return ret; 1238 } 1239 EXPORT_SYMBOL_GPL(mlx4_bond); 1240 1241 int mlx4_unbond(struct mlx4_dev *dev) 1242 { 1243 int ret = 0; 1244 struct mlx4_priv *priv = mlx4_priv(dev); 1245 1246 mutex_lock(&priv->bond_mutex); 1247 1248 if (mlx4_is_bonded(dev)) 1249 ret = mlx4_do_bond(dev, false); 1250 1251 mutex_unlock(&priv->bond_mutex); 1252 if (ret) 1253 mlx4_err(dev, "Failed to unbond device: %d\n", ret); 1254 else 1255 mlx4_dbg(dev, "Device is unbonded\n"); 1256 return ret; 1257 } 1258 EXPORT_SYMBOL_GPL(mlx4_unbond); 1259 1260 1261 int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p) 1262 { 1263 u8 port1 = v2p->port1; 1264 u8 port2 = v2p->port2; 1265 struct mlx4_priv *priv = mlx4_priv(dev); 1266 int err; 1267 1268 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP)) 1269 return -ENOTSUPP; 1270 1271 mutex_lock(&priv->bond_mutex); 1272 1273 /* zero means keep current mapping for this port */ 1274 if (port1 == 0) 1275 port1 = priv->v2p.port1; 1276 if (port2 == 0) 1277 port2 = priv->v2p.port2; 1278 1279 if ((port1 < 1) || (port1 > MLX4_MAX_PORTS) || 1280 (port2 < 1) || (port2 > MLX4_MAX_PORTS) || 1281 (port1 == 2 && port2 == 1)) { 1282 /* besides boundary checks cross mapping makes 1283 * no sense and therefore not allowed */ 1284 err = -EINVAL; 1285 } else if ((port1 == priv->v2p.port1) && 1286 (port2 == priv->v2p.port2)) { 1287 err = 0; 1288 } else { 1289 err = mlx4_virt2phy_port_map(dev, port1, port2); 1290 if (!err) { 1291 mlx4_dbg(dev, "port map changed: [%d][%d]\n", 1292 port1, port2); 1293 priv->v2p.port1 = port1; 1294 priv->v2p.port2 = port2; 1295 } else { 1296 mlx4_err(dev, "Failed to change port mape: %d\n", err); 1297 } 1298 } 1299 1300 mutex_unlock(&priv->bond_mutex); 1301 return err; 1302 } 1303 EXPORT_SYMBOL_GPL(mlx4_port_map_set); 1304 1305 static int mlx4_load_fw(struct mlx4_dev *dev) 1306 { 1307 struct mlx4_priv *priv = mlx4_priv(dev); 1308 int err; 1309 1310 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages, 1311 GFP_HIGHUSER | __GFP_NOWARN, 0); 1312 if (!priv->fw.fw_icm) { 1313 mlx4_err(dev, "Couldn't allocate FW area, aborting\n"); 1314 return -ENOMEM; 1315 } 1316 1317 err = mlx4_MAP_FA(dev, priv->fw.fw_icm); 1318 if (err) { 1319 mlx4_err(dev, "MAP_FA command failed, aborting\n"); 1320 goto err_free; 1321 } 1322 1323 err = mlx4_RUN_FW(dev); 1324 if (err) { 1325 mlx4_err(dev, "RUN_FW command failed, aborting\n"); 1326 goto err_unmap_fa; 1327 } 1328 1329 return 0; 1330 1331 err_unmap_fa: 1332 mlx4_UNMAP_FA(dev); 1333 1334 err_free: 1335 mlx4_free_icm(dev, priv->fw.fw_icm, 0); 1336 return err; 1337 } 1338 1339 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base, 1340 int cmpt_entry_sz) 1341 { 1342 struct mlx4_priv *priv = mlx4_priv(dev); 1343 int err; 1344 int num_eqs; 1345 1346 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table, 1347 cmpt_base + 1348 ((u64) (MLX4_CMPT_TYPE_QP * 1349 cmpt_entry_sz) << MLX4_CMPT_SHIFT), 1350 cmpt_entry_sz, dev->caps.num_qps, 1351 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 1352 0, 0); 1353 if (err) 1354 goto err; 1355 1356 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table, 1357 cmpt_base + 1358 ((u64) (MLX4_CMPT_TYPE_SRQ * 1359 cmpt_entry_sz) << MLX4_CMPT_SHIFT), 1360 cmpt_entry_sz, dev->caps.num_srqs, 1361 dev->caps.reserved_srqs, 0, 0); 1362 if (err) 1363 goto err_qp; 1364 1365 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table, 1366 cmpt_base + 1367 ((u64) (MLX4_CMPT_TYPE_CQ * 1368 cmpt_entry_sz) << MLX4_CMPT_SHIFT), 1369 cmpt_entry_sz, dev->caps.num_cqs, 1370 dev->caps.reserved_cqs, 0, 0); 1371 if (err) 1372 goto err_srq; 1373 1374 num_eqs = dev->phys_caps.num_phys_eqs; 1375 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table, 1376 cmpt_base + 1377 ((u64) (MLX4_CMPT_TYPE_EQ * 1378 cmpt_entry_sz) << MLX4_CMPT_SHIFT), 1379 cmpt_entry_sz, num_eqs, num_eqs, 0, 0); 1380 if (err) 1381 goto err_cq; 1382 1383 return 0; 1384 1385 err_cq: 1386 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); 1387 1388 err_srq: 1389 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); 1390 1391 err_qp: 1392 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); 1393 1394 err: 1395 return err; 1396 } 1397 1398 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap, 1399 struct mlx4_init_hca_param *init_hca, u64 icm_size) 1400 { 1401 struct mlx4_priv *priv = mlx4_priv(dev); 1402 u64 aux_pages; 1403 int num_eqs; 1404 int err; 1405 1406 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages); 1407 if (err) { 1408 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting\n"); 1409 return err; 1410 } 1411 1412 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory\n", 1413 (unsigned long long) icm_size >> 10, 1414 (unsigned long long) aux_pages << 2); 1415 1416 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages, 1417 GFP_HIGHUSER | __GFP_NOWARN, 0); 1418 if (!priv->fw.aux_icm) { 1419 mlx4_err(dev, "Couldn't allocate aux memory, aborting\n"); 1420 return -ENOMEM; 1421 } 1422 1423 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm); 1424 if (err) { 1425 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting\n"); 1426 goto err_free_aux; 1427 } 1428 1429 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz); 1430 if (err) { 1431 mlx4_err(dev, "Failed to map cMPT context memory, aborting\n"); 1432 goto err_unmap_aux; 1433 } 1434 1435 1436 num_eqs = dev->phys_caps.num_phys_eqs; 1437 err = mlx4_init_icm_table(dev, &priv->eq_table.table, 1438 init_hca->eqc_base, dev_cap->eqc_entry_sz, 1439 num_eqs, num_eqs, 0, 0); 1440 if (err) { 1441 mlx4_err(dev, "Failed to map EQ context memory, aborting\n"); 1442 goto err_unmap_cmpt; 1443 } 1444 1445 /* 1446 * Reserved MTT entries must be aligned up to a cacheline 1447 * boundary, since the FW will write to them, while the driver 1448 * writes to all other MTT entries. (The variable 1449 * dev->caps.mtt_entry_sz below is really the MTT segment 1450 * size, not the raw entry size) 1451 */ 1452 dev->caps.reserved_mtts = 1453 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz, 1454 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz; 1455 1456 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table, 1457 init_hca->mtt_base, 1458 dev->caps.mtt_entry_sz, 1459 dev->caps.num_mtts, 1460 dev->caps.reserved_mtts, 1, 0); 1461 if (err) { 1462 mlx4_err(dev, "Failed to map MTT context memory, aborting\n"); 1463 goto err_unmap_eq; 1464 } 1465 1466 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table, 1467 init_hca->dmpt_base, 1468 dev_cap->dmpt_entry_sz, 1469 dev->caps.num_mpts, 1470 dev->caps.reserved_mrws, 1, 1); 1471 if (err) { 1472 mlx4_err(dev, "Failed to map dMPT context memory, aborting\n"); 1473 goto err_unmap_mtt; 1474 } 1475 1476 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table, 1477 init_hca->qpc_base, 1478 dev_cap->qpc_entry_sz, 1479 dev->caps.num_qps, 1480 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 1481 0, 0); 1482 if (err) { 1483 mlx4_err(dev, "Failed to map QP context memory, aborting\n"); 1484 goto err_unmap_dmpt; 1485 } 1486 1487 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table, 1488 init_hca->auxc_base, 1489 dev_cap->aux_entry_sz, 1490 dev->caps.num_qps, 1491 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 1492 0, 0); 1493 if (err) { 1494 mlx4_err(dev, "Failed to map AUXC context memory, aborting\n"); 1495 goto err_unmap_qp; 1496 } 1497 1498 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table, 1499 init_hca->altc_base, 1500 dev_cap->altc_entry_sz, 1501 dev->caps.num_qps, 1502 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 1503 0, 0); 1504 if (err) { 1505 mlx4_err(dev, "Failed to map ALTC context memory, aborting\n"); 1506 goto err_unmap_auxc; 1507 } 1508 1509 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table, 1510 init_hca->rdmarc_base, 1511 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift, 1512 dev->caps.num_qps, 1513 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 1514 0, 0); 1515 if (err) { 1516 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n"); 1517 goto err_unmap_altc; 1518 } 1519 1520 err = mlx4_init_icm_table(dev, &priv->cq_table.table, 1521 init_hca->cqc_base, 1522 dev_cap->cqc_entry_sz, 1523 dev->caps.num_cqs, 1524 dev->caps.reserved_cqs, 0, 0); 1525 if (err) { 1526 mlx4_err(dev, "Failed to map CQ context memory, aborting\n"); 1527 goto err_unmap_rdmarc; 1528 } 1529 1530 err = mlx4_init_icm_table(dev, &priv->srq_table.table, 1531 init_hca->srqc_base, 1532 dev_cap->srq_entry_sz, 1533 dev->caps.num_srqs, 1534 dev->caps.reserved_srqs, 0, 0); 1535 if (err) { 1536 mlx4_err(dev, "Failed to map SRQ context memory, aborting\n"); 1537 goto err_unmap_cq; 1538 } 1539 1540 /* 1541 * For flow steering device managed mode it is required to use 1542 * mlx4_init_icm_table. For B0 steering mode it's not strictly 1543 * required, but for simplicity just map the whole multicast 1544 * group table now. The table isn't very big and it's a lot 1545 * easier than trying to track ref counts. 1546 */ 1547 err = mlx4_init_icm_table(dev, &priv->mcg_table.table, 1548 init_hca->mc_base, 1549 mlx4_get_mgm_entry_size(dev), 1550 dev->caps.num_mgms + dev->caps.num_amgms, 1551 dev->caps.num_mgms + dev->caps.num_amgms, 1552 0, 0); 1553 if (err) { 1554 mlx4_err(dev, "Failed to map MCG context memory, aborting\n"); 1555 goto err_unmap_srq; 1556 } 1557 1558 return 0; 1559 1560 err_unmap_srq: 1561 mlx4_cleanup_icm_table(dev, &priv->srq_table.table); 1562 1563 err_unmap_cq: 1564 mlx4_cleanup_icm_table(dev, &priv->cq_table.table); 1565 1566 err_unmap_rdmarc: 1567 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table); 1568 1569 err_unmap_altc: 1570 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table); 1571 1572 err_unmap_auxc: 1573 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table); 1574 1575 err_unmap_qp: 1576 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table); 1577 1578 err_unmap_dmpt: 1579 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table); 1580 1581 err_unmap_mtt: 1582 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table); 1583 1584 err_unmap_eq: 1585 mlx4_cleanup_icm_table(dev, &priv->eq_table.table); 1586 1587 err_unmap_cmpt: 1588 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table); 1589 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); 1590 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); 1591 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); 1592 1593 err_unmap_aux: 1594 mlx4_UNMAP_ICM_AUX(dev); 1595 1596 err_free_aux: 1597 mlx4_free_icm(dev, priv->fw.aux_icm, 0); 1598 1599 return err; 1600 } 1601 1602 static void mlx4_free_icms(struct mlx4_dev *dev) 1603 { 1604 struct mlx4_priv *priv = mlx4_priv(dev); 1605 1606 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table); 1607 mlx4_cleanup_icm_table(dev, &priv->srq_table.table); 1608 mlx4_cleanup_icm_table(dev, &priv->cq_table.table); 1609 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table); 1610 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table); 1611 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table); 1612 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table); 1613 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table); 1614 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table); 1615 mlx4_cleanup_icm_table(dev, &priv->eq_table.table); 1616 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table); 1617 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); 1618 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); 1619 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); 1620 1621 mlx4_UNMAP_ICM_AUX(dev); 1622 mlx4_free_icm(dev, priv->fw.aux_icm, 0); 1623 } 1624 1625 static void mlx4_slave_exit(struct mlx4_dev *dev) 1626 { 1627 struct mlx4_priv *priv = mlx4_priv(dev); 1628 1629 mutex_lock(&priv->cmd.slave_cmd_mutex); 1630 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 1631 MLX4_COMM_TIME)) 1632 mlx4_warn(dev, "Failed to close slave function\n"); 1633 mutex_unlock(&priv->cmd.slave_cmd_mutex); 1634 } 1635 1636 static int map_bf_area(struct mlx4_dev *dev) 1637 { 1638 struct mlx4_priv *priv = mlx4_priv(dev); 1639 resource_size_t bf_start; 1640 resource_size_t bf_len; 1641 int err = 0; 1642 1643 if (!dev->caps.bf_reg_size) 1644 return -ENXIO; 1645 1646 bf_start = pci_resource_start(dev->persist->pdev, 2) + 1647 (dev->caps.num_uars << PAGE_SHIFT); 1648 bf_len = pci_resource_len(dev->persist->pdev, 2) - 1649 (dev->caps.num_uars << PAGE_SHIFT); 1650 priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len); 1651 if (!priv->bf_mapping) 1652 err = -ENOMEM; 1653 1654 return err; 1655 } 1656 1657 static void unmap_bf_area(struct mlx4_dev *dev) 1658 { 1659 if (mlx4_priv(dev)->bf_mapping) 1660 io_mapping_free(mlx4_priv(dev)->bf_mapping); 1661 } 1662 1663 cycle_t mlx4_read_clock(struct mlx4_dev *dev) 1664 { 1665 u32 clockhi, clocklo, clockhi1; 1666 cycle_t cycles; 1667 int i; 1668 struct mlx4_priv *priv = mlx4_priv(dev); 1669 1670 for (i = 0; i < 10; i++) { 1671 clockhi = swab32(readl(priv->clock_mapping)); 1672 clocklo = swab32(readl(priv->clock_mapping + 4)); 1673 clockhi1 = swab32(readl(priv->clock_mapping)); 1674 if (clockhi == clockhi1) 1675 break; 1676 } 1677 1678 cycles = (u64) clockhi << 32 | (u64) clocklo; 1679 1680 return cycles; 1681 } 1682 EXPORT_SYMBOL_GPL(mlx4_read_clock); 1683 1684 1685 static int map_internal_clock(struct mlx4_dev *dev) 1686 { 1687 struct mlx4_priv *priv = mlx4_priv(dev); 1688 1689 priv->clock_mapping = 1690 ioremap(pci_resource_start(dev->persist->pdev, 1691 priv->fw.clock_bar) + 1692 priv->fw.clock_offset, MLX4_CLOCK_SIZE); 1693 1694 if (!priv->clock_mapping) 1695 return -ENOMEM; 1696 1697 return 0; 1698 } 1699 1700 int mlx4_get_internal_clock_params(struct mlx4_dev *dev, 1701 struct mlx4_clock_params *params) 1702 { 1703 struct mlx4_priv *priv = mlx4_priv(dev); 1704 1705 if (mlx4_is_slave(dev)) 1706 return -ENOTSUPP; 1707 1708 if (!params) 1709 return -EINVAL; 1710 1711 params->bar = priv->fw.clock_bar; 1712 params->offset = priv->fw.clock_offset; 1713 params->size = MLX4_CLOCK_SIZE; 1714 1715 return 0; 1716 } 1717 EXPORT_SYMBOL_GPL(mlx4_get_internal_clock_params); 1718 1719 static void unmap_internal_clock(struct mlx4_dev *dev) 1720 { 1721 struct mlx4_priv *priv = mlx4_priv(dev); 1722 1723 if (priv->clock_mapping) 1724 iounmap(priv->clock_mapping); 1725 } 1726 1727 static void mlx4_close_hca(struct mlx4_dev *dev) 1728 { 1729 unmap_internal_clock(dev); 1730 unmap_bf_area(dev); 1731 if (mlx4_is_slave(dev)) 1732 mlx4_slave_exit(dev); 1733 else { 1734 mlx4_CLOSE_HCA(dev, 0); 1735 mlx4_free_icms(dev); 1736 } 1737 } 1738 1739 static void mlx4_close_fw(struct mlx4_dev *dev) 1740 { 1741 if (!mlx4_is_slave(dev)) { 1742 mlx4_UNMAP_FA(dev); 1743 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0); 1744 } 1745 } 1746 1747 static int mlx4_comm_check_offline(struct mlx4_dev *dev) 1748 { 1749 #define COMM_CHAN_OFFLINE_OFFSET 0x09 1750 1751 u32 comm_flags; 1752 u32 offline_bit; 1753 unsigned long end; 1754 struct mlx4_priv *priv = mlx4_priv(dev); 1755 1756 end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies; 1757 while (time_before(jiffies, end)) { 1758 comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm + 1759 MLX4_COMM_CHAN_FLAGS)); 1760 offline_bit = (comm_flags & 1761 (u32)(1 << COMM_CHAN_OFFLINE_OFFSET)); 1762 if (!offline_bit) 1763 return 0; 1764 /* There are cases as part of AER/Reset flow that PF needs 1765 * around 100 msec to load. We therefore sleep for 100 msec 1766 * to allow other tasks to make use of that CPU during this 1767 * time interval. 1768 */ 1769 msleep(100); 1770 } 1771 mlx4_err(dev, "Communication channel is offline.\n"); 1772 return -EIO; 1773 } 1774 1775 static void mlx4_reset_vf_support(struct mlx4_dev *dev) 1776 { 1777 #define COMM_CHAN_RST_OFFSET 0x1e 1778 1779 struct mlx4_priv *priv = mlx4_priv(dev); 1780 u32 comm_rst; 1781 u32 comm_caps; 1782 1783 comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm + 1784 MLX4_COMM_CHAN_CAPS)); 1785 comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET)); 1786 1787 if (comm_rst) 1788 dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET; 1789 } 1790 1791 static int mlx4_init_slave(struct mlx4_dev *dev) 1792 { 1793 struct mlx4_priv *priv = mlx4_priv(dev); 1794 u64 dma = (u64) priv->mfunc.vhcr_dma; 1795 int ret_from_reset = 0; 1796 u32 slave_read; 1797 u32 cmd_channel_ver; 1798 1799 if (atomic_read(&pf_loading)) { 1800 mlx4_warn(dev, "PF is not ready - Deferring probe\n"); 1801 return -EPROBE_DEFER; 1802 } 1803 1804 mutex_lock(&priv->cmd.slave_cmd_mutex); 1805 priv->cmd.max_cmds = 1; 1806 if (mlx4_comm_check_offline(dev)) { 1807 mlx4_err(dev, "PF is not responsive, skipping initialization\n"); 1808 goto err_offline; 1809 } 1810 1811 mlx4_reset_vf_support(dev); 1812 mlx4_warn(dev, "Sending reset\n"); 1813 ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 1814 MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME); 1815 /* if we are in the middle of flr the slave will try 1816 * NUM_OF_RESET_RETRIES times before leaving.*/ 1817 if (ret_from_reset) { 1818 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) { 1819 mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n"); 1820 mutex_unlock(&priv->cmd.slave_cmd_mutex); 1821 return -EPROBE_DEFER; 1822 } else 1823 goto err; 1824 } 1825 1826 /* check the driver version - the slave I/F revision 1827 * must match the master's */ 1828 slave_read = swab32(readl(&priv->mfunc.comm->slave_read)); 1829 cmd_channel_ver = mlx4_comm_get_version(); 1830 1831 if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) != 1832 MLX4_COMM_GET_IF_REV(slave_read)) { 1833 mlx4_err(dev, "slave driver version is not supported by the master\n"); 1834 goto err; 1835 } 1836 1837 mlx4_warn(dev, "Sending vhcr0\n"); 1838 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48, 1839 MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) 1840 goto err; 1841 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32, 1842 MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) 1843 goto err; 1844 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16, 1845 MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) 1846 goto err; 1847 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, 1848 MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) 1849 goto err; 1850 1851 mutex_unlock(&priv->cmd.slave_cmd_mutex); 1852 return 0; 1853 1854 err: 1855 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 0); 1856 err_offline: 1857 mutex_unlock(&priv->cmd.slave_cmd_mutex); 1858 return -EIO; 1859 } 1860 1861 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev) 1862 { 1863 int i; 1864 1865 for (i = 1; i <= dev->caps.num_ports; i++) { 1866 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) 1867 dev->caps.gid_table_len[i] = 1868 mlx4_get_slave_num_gids(dev, 0, i); 1869 else 1870 dev->caps.gid_table_len[i] = 1; 1871 dev->caps.pkey_table_len[i] = 1872 dev->phys_caps.pkey_phys_table_len[i] - 1; 1873 } 1874 } 1875 1876 static int choose_log_fs_mgm_entry_size(int qp_per_entry) 1877 { 1878 int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; 1879 1880 for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE; 1881 i++) { 1882 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2)) 1883 break; 1884 } 1885 1886 return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1; 1887 } 1888 1889 static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode) 1890 { 1891 switch (dmfs_high_steer_mode) { 1892 case MLX4_STEERING_DMFS_A0_DEFAULT: 1893 return "default performance"; 1894 1895 case MLX4_STEERING_DMFS_A0_DYNAMIC: 1896 return "dynamic hybrid mode"; 1897 1898 case MLX4_STEERING_DMFS_A0_STATIC: 1899 return "performance optimized for limited rule configuration (static)"; 1900 1901 case MLX4_STEERING_DMFS_A0_DISABLE: 1902 return "disabled performance optimized steering"; 1903 1904 case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED: 1905 return "performance optimized steering not supported"; 1906 1907 default: 1908 return "Unrecognized mode"; 1909 } 1910 } 1911 1912 #define MLX4_DMFS_A0_STEERING (1UL << 2) 1913 1914 static void choose_steering_mode(struct mlx4_dev *dev, 1915 struct mlx4_dev_cap *dev_cap) 1916 { 1917 if (mlx4_log_num_mgm_entry_size <= 0) { 1918 if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) { 1919 if (dev->caps.dmfs_high_steer_mode == 1920 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) 1921 mlx4_err(dev, "DMFS high rate mode not supported\n"); 1922 else 1923 dev->caps.dmfs_high_steer_mode = 1924 MLX4_STEERING_DMFS_A0_STATIC; 1925 } 1926 } 1927 1928 if (mlx4_log_num_mgm_entry_size <= 0 && 1929 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN && 1930 (!mlx4_is_mfunc(dev) || 1931 (dev_cap->fs_max_num_qp_per_entry >= 1932 (dev->persist->num_vfs + 1))) && 1933 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >= 1934 MLX4_MIN_MGM_LOG_ENTRY_SIZE) { 1935 dev->oper_log_mgm_entry_size = 1936 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry); 1937 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED; 1938 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry; 1939 dev->caps.fs_log_max_ucast_qp_range_size = 1940 dev_cap->fs_log_max_ucast_qp_range_size; 1941 } else { 1942 if (dev->caps.dmfs_high_steer_mode != 1943 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) 1944 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE; 1945 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER && 1946 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) 1947 dev->caps.steering_mode = MLX4_STEERING_MODE_B0; 1948 else { 1949 dev->caps.steering_mode = MLX4_STEERING_MODE_A0; 1950 1951 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER || 1952 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) 1953 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n"); 1954 } 1955 dev->oper_log_mgm_entry_size = 1956 mlx4_log_num_mgm_entry_size > 0 ? 1957 mlx4_log_num_mgm_entry_size : 1958 MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE; 1959 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev); 1960 } 1961 mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n", 1962 mlx4_steering_mode_str(dev->caps.steering_mode), 1963 dev->oper_log_mgm_entry_size, 1964 mlx4_log_num_mgm_entry_size); 1965 } 1966 1967 static void choose_tunnel_offload_mode(struct mlx4_dev *dev, 1968 struct mlx4_dev_cap *dev_cap) 1969 { 1970 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && 1971 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) 1972 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN; 1973 else 1974 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE; 1975 1976 mlx4_dbg(dev, "Tunneling offload mode is: %s\n", (dev->caps.tunnel_offload_mode 1977 == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none"); 1978 } 1979 1980 static int mlx4_validate_optimized_steering(struct mlx4_dev *dev) 1981 { 1982 int i; 1983 struct mlx4_port_cap port_cap; 1984 1985 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) 1986 return -EINVAL; 1987 1988 for (i = 1; i <= dev->caps.num_ports; i++) { 1989 if (mlx4_dev_port(dev, i, &port_cap)) { 1990 mlx4_err(dev, 1991 "QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n"); 1992 } else if ((dev->caps.dmfs_high_steer_mode != 1993 MLX4_STEERING_DMFS_A0_DEFAULT) && 1994 (port_cap.dmfs_optimized_state == 1995 !!(dev->caps.dmfs_high_steer_mode == 1996 MLX4_STEERING_DMFS_A0_DISABLE))) { 1997 mlx4_err(dev, 1998 "DMFS high rate steer mode differ, driver requested %s but %s in FW.\n", 1999 dmfs_high_rate_steering_mode_str( 2000 dev->caps.dmfs_high_steer_mode), 2001 (port_cap.dmfs_optimized_state ? 2002 "enabled" : "disabled")); 2003 } 2004 } 2005 2006 return 0; 2007 } 2008 2009 static int mlx4_init_fw(struct mlx4_dev *dev) 2010 { 2011 struct mlx4_mod_stat_cfg mlx4_cfg; 2012 int err = 0; 2013 2014 if (!mlx4_is_slave(dev)) { 2015 err = mlx4_QUERY_FW(dev); 2016 if (err) { 2017 if (err == -EACCES) 2018 mlx4_info(dev, "non-primary physical function, skipping\n"); 2019 else 2020 mlx4_err(dev, "QUERY_FW command failed, aborting\n"); 2021 return err; 2022 } 2023 2024 err = mlx4_load_fw(dev); 2025 if (err) { 2026 mlx4_err(dev, "Failed to start FW, aborting\n"); 2027 return err; 2028 } 2029 2030 mlx4_cfg.log_pg_sz_m = 1; 2031 mlx4_cfg.log_pg_sz = 0; 2032 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg); 2033 if (err) 2034 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n"); 2035 } 2036 2037 return err; 2038 } 2039 2040 static int mlx4_init_hca(struct mlx4_dev *dev) 2041 { 2042 struct mlx4_priv *priv = mlx4_priv(dev); 2043 struct mlx4_adapter adapter; 2044 struct mlx4_dev_cap dev_cap; 2045 struct mlx4_profile profile; 2046 struct mlx4_init_hca_param init_hca; 2047 u64 icm_size; 2048 struct mlx4_config_dev_params params; 2049 int err; 2050 2051 if (!mlx4_is_slave(dev)) { 2052 err = mlx4_dev_cap(dev, &dev_cap); 2053 if (err) { 2054 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); 2055 return err; 2056 } 2057 2058 choose_steering_mode(dev, &dev_cap); 2059 choose_tunnel_offload_mode(dev, &dev_cap); 2060 2061 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC && 2062 mlx4_is_master(dev)) 2063 dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC; 2064 2065 err = mlx4_get_phys_port_id(dev); 2066 if (err) 2067 mlx4_err(dev, "Fail to get physical port id\n"); 2068 2069 if (mlx4_is_master(dev)) 2070 mlx4_parav_master_pf_caps(dev); 2071 2072 if (mlx4_low_memory_profile()) { 2073 mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n"); 2074 profile = low_mem_profile; 2075 } else { 2076 profile = default_profile; 2077 } 2078 if (dev->caps.steering_mode == 2079 MLX4_STEERING_MODE_DEVICE_MANAGED) 2080 profile.num_mcg = MLX4_FS_NUM_MCG; 2081 2082 icm_size = mlx4_make_profile(dev, &profile, &dev_cap, 2083 &init_hca); 2084 if ((long long) icm_size < 0) { 2085 err = icm_size; 2086 return err; 2087 } 2088 2089 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1; 2090 2091 init_hca.log_uar_sz = ilog2(dev->caps.num_uars); 2092 init_hca.uar_page_sz = PAGE_SHIFT - 12; 2093 init_hca.mw_enabled = 0; 2094 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || 2095 dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) 2096 init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE; 2097 2098 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); 2099 if (err) 2100 return err; 2101 2102 err = mlx4_INIT_HCA(dev, &init_hca); 2103 if (err) { 2104 mlx4_err(dev, "INIT_HCA command failed, aborting\n"); 2105 goto err_free_icm; 2106 } 2107 2108 if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) { 2109 err = mlx4_query_func(dev, &dev_cap); 2110 if (err < 0) { 2111 mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n"); 2112 goto err_close; 2113 } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) { 2114 dev->caps.num_eqs = dev_cap.max_eqs; 2115 dev->caps.reserved_eqs = dev_cap.reserved_eqs; 2116 dev->caps.reserved_uars = dev_cap.reserved_uars; 2117 } 2118 } 2119 2120 /* 2121 * If TS is supported by FW 2122 * read HCA frequency by QUERY_HCA command 2123 */ 2124 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) { 2125 memset(&init_hca, 0, sizeof(init_hca)); 2126 err = mlx4_QUERY_HCA(dev, &init_hca); 2127 if (err) { 2128 mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n"); 2129 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; 2130 } else { 2131 dev->caps.hca_core_clock = 2132 init_hca.hca_core_clock; 2133 } 2134 2135 /* In case we got HCA frequency 0 - disable timestamping 2136 * to avoid dividing by zero 2137 */ 2138 if (!dev->caps.hca_core_clock) { 2139 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; 2140 mlx4_err(dev, 2141 "HCA frequency is 0 - timestamping is not supported\n"); 2142 } else if (map_internal_clock(dev)) { 2143 /* 2144 * Map internal clock, 2145 * in case of failure disable timestamping 2146 */ 2147 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; 2148 mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n"); 2149 } 2150 } 2151 2152 if (dev->caps.dmfs_high_steer_mode != 2153 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) { 2154 if (mlx4_validate_optimized_steering(dev)) 2155 mlx4_warn(dev, "Optimized steering validation failed\n"); 2156 2157 if (dev->caps.dmfs_high_steer_mode == 2158 MLX4_STEERING_DMFS_A0_DISABLE) { 2159 dev->caps.dmfs_high_rate_qpn_base = 2160 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; 2161 dev->caps.dmfs_high_rate_qpn_range = 2162 MLX4_A0_STEERING_TABLE_SIZE; 2163 } 2164 2165 mlx4_dbg(dev, "DMFS high rate steer mode is: %s\n", 2166 dmfs_high_rate_steering_mode_str( 2167 dev->caps.dmfs_high_steer_mode)); 2168 } 2169 } else { 2170 err = mlx4_init_slave(dev); 2171 if (err) { 2172 if (err != -EPROBE_DEFER) 2173 mlx4_err(dev, "Failed to initialize slave\n"); 2174 return err; 2175 } 2176 2177 err = mlx4_slave_cap(dev); 2178 if (err) { 2179 mlx4_err(dev, "Failed to obtain slave caps\n"); 2180 goto err_close; 2181 } 2182 } 2183 2184 if (map_bf_area(dev)) 2185 mlx4_dbg(dev, "Failed to map blue flame area\n"); 2186 2187 /*Only the master set the ports, all the rest got it from it.*/ 2188 if (!mlx4_is_slave(dev)) 2189 mlx4_set_port_mask(dev); 2190 2191 err = mlx4_QUERY_ADAPTER(dev, &adapter); 2192 if (err) { 2193 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n"); 2194 goto unmap_bf; 2195 } 2196 2197 /* Query CONFIG_DEV parameters */ 2198 err = mlx4_config_dev_retrieval(dev, ¶ms); 2199 if (err && err != -ENOTSUPP) { 2200 mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n"); 2201 } else if (!err) { 2202 dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1; 2203 dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2; 2204 } 2205 priv->eq_table.inta_pin = adapter.inta_pin; 2206 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id); 2207 2208 return 0; 2209 2210 unmap_bf: 2211 unmap_internal_clock(dev); 2212 unmap_bf_area(dev); 2213 2214 if (mlx4_is_slave(dev)) { 2215 kfree(dev->caps.qp0_qkey); 2216 kfree(dev->caps.qp0_tunnel); 2217 kfree(dev->caps.qp0_proxy); 2218 kfree(dev->caps.qp1_tunnel); 2219 kfree(dev->caps.qp1_proxy); 2220 } 2221 2222 err_close: 2223 if (mlx4_is_slave(dev)) 2224 mlx4_slave_exit(dev); 2225 else 2226 mlx4_CLOSE_HCA(dev, 0); 2227 2228 err_free_icm: 2229 if (!mlx4_is_slave(dev)) 2230 mlx4_free_icms(dev); 2231 2232 return err; 2233 } 2234 2235 static int mlx4_init_counters_table(struct mlx4_dev *dev) 2236 { 2237 struct mlx4_priv *priv = mlx4_priv(dev); 2238 int nent_pow2; 2239 2240 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) 2241 return -ENOENT; 2242 2243 if (!dev->caps.max_counters) 2244 return -ENOSPC; 2245 2246 nent_pow2 = roundup_pow_of_two(dev->caps.max_counters); 2247 /* reserve last counter index for sink counter */ 2248 return mlx4_bitmap_init(&priv->counters_bitmap, nent_pow2, 2249 nent_pow2 - 1, 0, 2250 nent_pow2 - dev->caps.max_counters + 1); 2251 } 2252 2253 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev) 2254 { 2255 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) 2256 return; 2257 2258 if (!dev->caps.max_counters) 2259 return; 2260 2261 mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap); 2262 } 2263 2264 static void mlx4_cleanup_default_counters(struct mlx4_dev *dev) 2265 { 2266 struct mlx4_priv *priv = mlx4_priv(dev); 2267 int port; 2268 2269 for (port = 0; port < dev->caps.num_ports; port++) 2270 if (priv->def_counter[port] != -1) 2271 mlx4_counter_free(dev, priv->def_counter[port]); 2272 } 2273 2274 static int mlx4_allocate_default_counters(struct mlx4_dev *dev) 2275 { 2276 struct mlx4_priv *priv = mlx4_priv(dev); 2277 int port, err = 0; 2278 u32 idx; 2279 2280 for (port = 0; port < dev->caps.num_ports; port++) 2281 priv->def_counter[port] = -1; 2282 2283 for (port = 0; port < dev->caps.num_ports; port++) { 2284 err = mlx4_counter_alloc(dev, &idx); 2285 2286 if (!err || err == -ENOSPC) { 2287 priv->def_counter[port] = idx; 2288 } else if (err == -ENOENT) { 2289 err = 0; 2290 continue; 2291 } else { 2292 mlx4_err(dev, "%s: failed to allocate default counter port %d err %d\n", 2293 __func__, port + 1, err); 2294 mlx4_cleanup_default_counters(dev); 2295 return err; 2296 } 2297 2298 mlx4_dbg(dev, "%s: default counter index %d for port %d\n", 2299 __func__, priv->def_counter[port], port + 1); 2300 } 2301 2302 return err; 2303 } 2304 2305 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx) 2306 { 2307 struct mlx4_priv *priv = mlx4_priv(dev); 2308 2309 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) 2310 return -ENOENT; 2311 2312 *idx = mlx4_bitmap_alloc(&priv->counters_bitmap); 2313 if (*idx == -1) { 2314 *idx = MLX4_SINK_COUNTER_INDEX(dev); 2315 return -ENOSPC; 2316 } 2317 2318 return 0; 2319 } 2320 2321 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx) 2322 { 2323 u64 out_param; 2324 int err; 2325 2326 if (mlx4_is_mfunc(dev)) { 2327 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER, 2328 RES_OP_RESERVE, MLX4_CMD_ALLOC_RES, 2329 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); 2330 if (!err) 2331 *idx = get_param_l(&out_param); 2332 2333 return err; 2334 } 2335 return __mlx4_counter_alloc(dev, idx); 2336 } 2337 EXPORT_SYMBOL_GPL(mlx4_counter_alloc); 2338 2339 static int __mlx4_clear_if_stat(struct mlx4_dev *dev, 2340 u8 counter_index) 2341 { 2342 struct mlx4_cmd_mailbox *if_stat_mailbox; 2343 int err; 2344 u32 if_stat_in_mod = (counter_index & 0xff) | MLX4_QUERY_IF_STAT_RESET; 2345 2346 if_stat_mailbox = mlx4_alloc_cmd_mailbox(dev); 2347 if (IS_ERR(if_stat_mailbox)) 2348 return PTR_ERR(if_stat_mailbox); 2349 2350 err = mlx4_cmd_box(dev, 0, if_stat_mailbox->dma, if_stat_in_mod, 0, 2351 MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C, 2352 MLX4_CMD_NATIVE); 2353 2354 mlx4_free_cmd_mailbox(dev, if_stat_mailbox); 2355 return err; 2356 } 2357 2358 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx) 2359 { 2360 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) 2361 return; 2362 2363 if (idx == MLX4_SINK_COUNTER_INDEX(dev)) 2364 return; 2365 2366 __mlx4_clear_if_stat(dev, idx); 2367 2368 mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR); 2369 return; 2370 } 2371 2372 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx) 2373 { 2374 u64 in_param = 0; 2375 2376 if (mlx4_is_mfunc(dev)) { 2377 set_param_l(&in_param, idx); 2378 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE, 2379 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A, 2380 MLX4_CMD_WRAPPED); 2381 return; 2382 } 2383 __mlx4_counter_free(dev, idx); 2384 } 2385 EXPORT_SYMBOL_GPL(mlx4_counter_free); 2386 2387 int mlx4_get_default_counter_index(struct mlx4_dev *dev, int port) 2388 { 2389 struct mlx4_priv *priv = mlx4_priv(dev); 2390 2391 return priv->def_counter[port - 1]; 2392 } 2393 EXPORT_SYMBOL_GPL(mlx4_get_default_counter_index); 2394 2395 void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port) 2396 { 2397 struct mlx4_priv *priv = mlx4_priv(dev); 2398 2399 priv->mfunc.master.vf_admin[entry].vport[port].guid = guid; 2400 } 2401 EXPORT_SYMBOL_GPL(mlx4_set_admin_guid); 2402 2403 __be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port) 2404 { 2405 struct mlx4_priv *priv = mlx4_priv(dev); 2406 2407 return priv->mfunc.master.vf_admin[entry].vport[port].guid; 2408 } 2409 EXPORT_SYMBOL_GPL(mlx4_get_admin_guid); 2410 2411 void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port) 2412 { 2413 struct mlx4_priv *priv = mlx4_priv(dev); 2414 __be64 guid; 2415 2416 /* hw GUID */ 2417 if (entry == 0) 2418 return; 2419 2420 get_random_bytes((char *)&guid, sizeof(guid)); 2421 guid &= ~(cpu_to_be64(1ULL << 56)); 2422 guid |= cpu_to_be64(1ULL << 57); 2423 priv->mfunc.master.vf_admin[entry].vport[port].guid = guid; 2424 } 2425 2426 static int mlx4_setup_hca(struct mlx4_dev *dev) 2427 { 2428 struct mlx4_priv *priv = mlx4_priv(dev); 2429 int err; 2430 int port; 2431 __be32 ib_port_default_caps; 2432 2433 err = mlx4_init_uar_table(dev); 2434 if (err) { 2435 mlx4_err(dev, "Failed to initialize user access region table, aborting\n"); 2436 return err; 2437 } 2438 2439 err = mlx4_uar_alloc(dev, &priv->driver_uar); 2440 if (err) { 2441 mlx4_err(dev, "Failed to allocate driver access region, aborting\n"); 2442 goto err_uar_table_free; 2443 } 2444 2445 priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 2446 if (!priv->kar) { 2447 mlx4_err(dev, "Couldn't map kernel access region, aborting\n"); 2448 err = -ENOMEM; 2449 goto err_uar_free; 2450 } 2451 2452 err = mlx4_init_pd_table(dev); 2453 if (err) { 2454 mlx4_err(dev, "Failed to initialize protection domain table, aborting\n"); 2455 goto err_kar_unmap; 2456 } 2457 2458 err = mlx4_init_xrcd_table(dev); 2459 if (err) { 2460 mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n"); 2461 goto err_pd_table_free; 2462 } 2463 2464 err = mlx4_init_mr_table(dev); 2465 if (err) { 2466 mlx4_err(dev, "Failed to initialize memory region table, aborting\n"); 2467 goto err_xrcd_table_free; 2468 } 2469 2470 if (!mlx4_is_slave(dev)) { 2471 err = mlx4_init_mcg_table(dev); 2472 if (err) { 2473 mlx4_err(dev, "Failed to initialize multicast group table, aborting\n"); 2474 goto err_mr_table_free; 2475 } 2476 err = mlx4_config_mad_demux(dev); 2477 if (err) { 2478 mlx4_err(dev, "Failed in config_mad_demux, aborting\n"); 2479 goto err_mcg_table_free; 2480 } 2481 } 2482 2483 err = mlx4_init_eq_table(dev); 2484 if (err) { 2485 mlx4_err(dev, "Failed to initialize event queue table, aborting\n"); 2486 goto err_mcg_table_free; 2487 } 2488 2489 err = mlx4_cmd_use_events(dev); 2490 if (err) { 2491 mlx4_err(dev, "Failed to switch to event-driven firmware commands, aborting\n"); 2492 goto err_eq_table_free; 2493 } 2494 2495 err = mlx4_NOP(dev); 2496 if (err) { 2497 if (dev->flags & MLX4_FLAG_MSI_X) { 2498 mlx4_warn(dev, "NOP command failed to generate MSI-X interrupt IRQ %d)\n", 2499 priv->eq_table.eq[MLX4_EQ_ASYNC].irq); 2500 mlx4_warn(dev, "Trying again without MSI-X\n"); 2501 } else { 2502 mlx4_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting\n", 2503 priv->eq_table.eq[MLX4_EQ_ASYNC].irq); 2504 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 2505 } 2506 2507 goto err_cmd_poll; 2508 } 2509 2510 mlx4_dbg(dev, "NOP command IRQ test passed\n"); 2511 2512 err = mlx4_init_cq_table(dev); 2513 if (err) { 2514 mlx4_err(dev, "Failed to initialize completion queue table, aborting\n"); 2515 goto err_cmd_poll; 2516 } 2517 2518 err = mlx4_init_srq_table(dev); 2519 if (err) { 2520 mlx4_err(dev, "Failed to initialize shared receive queue table, aborting\n"); 2521 goto err_cq_table_free; 2522 } 2523 2524 err = mlx4_init_qp_table(dev); 2525 if (err) { 2526 mlx4_err(dev, "Failed to initialize queue pair table, aborting\n"); 2527 goto err_srq_table_free; 2528 } 2529 2530 if (!mlx4_is_slave(dev)) { 2531 err = mlx4_init_counters_table(dev); 2532 if (err && err != -ENOENT) { 2533 mlx4_err(dev, "Failed to initialize counters table, aborting\n"); 2534 goto err_qp_table_free; 2535 } 2536 } 2537 2538 err = mlx4_allocate_default_counters(dev); 2539 if (err) { 2540 mlx4_err(dev, "Failed to allocate default counters, aborting\n"); 2541 goto err_counters_table_free; 2542 } 2543 2544 if (!mlx4_is_slave(dev)) { 2545 for (port = 1; port <= dev->caps.num_ports; port++) { 2546 ib_port_default_caps = 0; 2547 err = mlx4_get_port_ib_caps(dev, port, 2548 &ib_port_default_caps); 2549 if (err) 2550 mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n", 2551 port, err); 2552 dev->caps.ib_port_def_cap[port] = ib_port_default_caps; 2553 2554 /* initialize per-slave default ib port capabilities */ 2555 if (mlx4_is_master(dev)) { 2556 int i; 2557 for (i = 0; i < dev->num_slaves; i++) { 2558 if (i == mlx4_master_func_num(dev)) 2559 continue; 2560 priv->mfunc.master.slave_state[i].ib_cap_mask[port] = 2561 ib_port_default_caps; 2562 } 2563 } 2564 2565 if (mlx4_is_mfunc(dev)) 2566 dev->caps.port_ib_mtu[port] = IB_MTU_2048; 2567 else 2568 dev->caps.port_ib_mtu[port] = IB_MTU_4096; 2569 2570 err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ? 2571 dev->caps.pkey_table_len[port] : -1); 2572 if (err) { 2573 mlx4_err(dev, "Failed to set port %d, aborting\n", 2574 port); 2575 goto err_default_countes_free; 2576 } 2577 } 2578 } 2579 2580 return 0; 2581 2582 err_default_countes_free: 2583 mlx4_cleanup_default_counters(dev); 2584 2585 err_counters_table_free: 2586 if (!mlx4_is_slave(dev)) 2587 mlx4_cleanup_counters_table(dev); 2588 2589 err_qp_table_free: 2590 mlx4_cleanup_qp_table(dev); 2591 2592 err_srq_table_free: 2593 mlx4_cleanup_srq_table(dev); 2594 2595 err_cq_table_free: 2596 mlx4_cleanup_cq_table(dev); 2597 2598 err_cmd_poll: 2599 mlx4_cmd_use_polling(dev); 2600 2601 err_eq_table_free: 2602 mlx4_cleanup_eq_table(dev); 2603 2604 err_mcg_table_free: 2605 if (!mlx4_is_slave(dev)) 2606 mlx4_cleanup_mcg_table(dev); 2607 2608 err_mr_table_free: 2609 mlx4_cleanup_mr_table(dev); 2610 2611 err_xrcd_table_free: 2612 mlx4_cleanup_xrcd_table(dev); 2613 2614 err_pd_table_free: 2615 mlx4_cleanup_pd_table(dev); 2616 2617 err_kar_unmap: 2618 iounmap(priv->kar); 2619 2620 err_uar_free: 2621 mlx4_uar_free(dev, &priv->driver_uar); 2622 2623 err_uar_table_free: 2624 mlx4_cleanup_uar_table(dev); 2625 return err; 2626 } 2627 2628 static int mlx4_init_affinity_hint(struct mlx4_dev *dev, int port, int eqn) 2629 { 2630 int requested_cpu = 0; 2631 struct mlx4_priv *priv = mlx4_priv(dev); 2632 struct mlx4_eq *eq; 2633 int off = 0; 2634 int i; 2635 2636 if (eqn > dev->caps.num_comp_vectors) 2637 return -EINVAL; 2638 2639 for (i = 1; i < port; i++) 2640 off += mlx4_get_eqs_per_port(dev, i); 2641 2642 requested_cpu = eqn - off - !!(eqn > MLX4_EQ_ASYNC); 2643 2644 /* Meaning EQs are shared, and this call comes from the second port */ 2645 if (requested_cpu < 0) 2646 return 0; 2647 2648 eq = &priv->eq_table.eq[eqn]; 2649 2650 if (!zalloc_cpumask_var(&eq->affinity_mask, GFP_KERNEL)) 2651 return -ENOMEM; 2652 2653 cpumask_set_cpu(requested_cpu, eq->affinity_mask); 2654 2655 return 0; 2656 } 2657 2658 static void mlx4_enable_msi_x(struct mlx4_dev *dev) 2659 { 2660 struct mlx4_priv *priv = mlx4_priv(dev); 2661 struct msix_entry *entries; 2662 int i; 2663 int port = 0; 2664 2665 if (msi_x) { 2666 int nreq = dev->caps.num_ports * num_online_cpus() + 1; 2667 2668 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, 2669 nreq); 2670 2671 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); 2672 if (!entries) 2673 goto no_msi; 2674 2675 for (i = 0; i < nreq; ++i) 2676 entries[i].entry = i; 2677 2678 nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2, 2679 nreq); 2680 2681 if (nreq < 0 || nreq < MLX4_EQ_ASYNC) { 2682 kfree(entries); 2683 goto no_msi; 2684 } 2685 /* 1 is reserved for events (asyncrounous EQ) */ 2686 dev->caps.num_comp_vectors = nreq - 1; 2687 2688 priv->eq_table.eq[MLX4_EQ_ASYNC].irq = entries[0].vector; 2689 bitmap_zero(priv->eq_table.eq[MLX4_EQ_ASYNC].actv_ports.ports, 2690 dev->caps.num_ports); 2691 2692 for (i = 0; i < dev->caps.num_comp_vectors + 1; i++) { 2693 if (i == MLX4_EQ_ASYNC) 2694 continue; 2695 2696 priv->eq_table.eq[i].irq = 2697 entries[i + 1 - !!(i > MLX4_EQ_ASYNC)].vector; 2698 2699 if (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) { 2700 bitmap_fill(priv->eq_table.eq[i].actv_ports.ports, 2701 dev->caps.num_ports); 2702 /* We don't set affinity hint when there 2703 * aren't enough EQs 2704 */ 2705 } else { 2706 set_bit(port, 2707 priv->eq_table.eq[i].actv_ports.ports); 2708 if (mlx4_init_affinity_hint(dev, port + 1, i)) 2709 mlx4_warn(dev, "Couldn't init hint cpumask for EQ %d\n", 2710 i); 2711 } 2712 /* We divide the Eqs evenly between the two ports. 2713 * (dev->caps.num_comp_vectors / dev->caps.num_ports) 2714 * refers to the number of Eqs per port 2715 * (i.e eqs_per_port). Theoretically, we would like to 2716 * write something like (i + 1) % eqs_per_port == 0. 2717 * However, since there's an asynchronous Eq, we have 2718 * to skip over it by comparing this condition to 2719 * !!((i + 1) > MLX4_EQ_ASYNC). 2720 */ 2721 if ((dev->caps.num_comp_vectors > dev->caps.num_ports) && 2722 ((i + 1) % 2723 (dev->caps.num_comp_vectors / dev->caps.num_ports)) == 2724 !!((i + 1) > MLX4_EQ_ASYNC)) 2725 /* If dev->caps.num_comp_vectors < dev->caps.num_ports, 2726 * everything is shared anyway. 2727 */ 2728 port++; 2729 } 2730 2731 dev->flags |= MLX4_FLAG_MSI_X; 2732 2733 kfree(entries); 2734 return; 2735 } 2736 2737 no_msi: 2738 dev->caps.num_comp_vectors = 1; 2739 2740 BUG_ON(MLX4_EQ_ASYNC >= 2); 2741 for (i = 0; i < 2; ++i) { 2742 priv->eq_table.eq[i].irq = dev->persist->pdev->irq; 2743 if (i != MLX4_EQ_ASYNC) { 2744 bitmap_fill(priv->eq_table.eq[i].actv_ports.ports, 2745 dev->caps.num_ports); 2746 } 2747 } 2748 } 2749 2750 static int mlx4_init_port_info(struct mlx4_dev *dev, int port) 2751 { 2752 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; 2753 int err = 0; 2754 2755 info->dev = dev; 2756 info->port = port; 2757 if (!mlx4_is_slave(dev)) { 2758 mlx4_init_mac_table(dev, &info->mac_table); 2759 mlx4_init_vlan_table(dev, &info->vlan_table); 2760 mlx4_init_roce_gid_table(dev, &info->gid_table); 2761 info->base_qpn = mlx4_get_base_qpn(dev, port); 2762 } 2763 2764 sprintf(info->dev_name, "mlx4_port%d", port); 2765 info->port_attr.attr.name = info->dev_name; 2766 if (mlx4_is_mfunc(dev)) 2767 info->port_attr.attr.mode = S_IRUGO; 2768 else { 2769 info->port_attr.attr.mode = S_IRUGO | S_IWUSR; 2770 info->port_attr.store = set_port_type; 2771 } 2772 info->port_attr.show = show_port_type; 2773 sysfs_attr_init(&info->port_attr.attr); 2774 2775 err = device_create_file(&dev->persist->pdev->dev, &info->port_attr); 2776 if (err) { 2777 mlx4_err(dev, "Failed to create file for port %d\n", port); 2778 info->port = -1; 2779 } 2780 2781 sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port); 2782 info->port_mtu_attr.attr.name = info->dev_mtu_name; 2783 if (mlx4_is_mfunc(dev)) 2784 info->port_mtu_attr.attr.mode = S_IRUGO; 2785 else { 2786 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR; 2787 info->port_mtu_attr.store = set_port_ib_mtu; 2788 } 2789 info->port_mtu_attr.show = show_port_ib_mtu; 2790 sysfs_attr_init(&info->port_mtu_attr.attr); 2791 2792 err = device_create_file(&dev->persist->pdev->dev, 2793 &info->port_mtu_attr); 2794 if (err) { 2795 mlx4_err(dev, "Failed to create mtu file for port %d\n", port); 2796 device_remove_file(&info->dev->persist->pdev->dev, 2797 &info->port_attr); 2798 info->port = -1; 2799 } 2800 2801 return err; 2802 } 2803 2804 static void mlx4_cleanup_port_info(struct mlx4_port_info *info) 2805 { 2806 if (info->port < 0) 2807 return; 2808 2809 device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr); 2810 device_remove_file(&info->dev->persist->pdev->dev, 2811 &info->port_mtu_attr); 2812 #ifdef CONFIG_RFS_ACCEL 2813 free_irq_cpu_rmap(info->rmap); 2814 info->rmap = NULL; 2815 #endif 2816 } 2817 2818 static int mlx4_init_steering(struct mlx4_dev *dev) 2819 { 2820 struct mlx4_priv *priv = mlx4_priv(dev); 2821 int num_entries = dev->caps.num_ports; 2822 int i, j; 2823 2824 priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL); 2825 if (!priv->steer) 2826 return -ENOMEM; 2827 2828 for (i = 0; i < num_entries; i++) 2829 for (j = 0; j < MLX4_NUM_STEERS; j++) { 2830 INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]); 2831 INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]); 2832 } 2833 return 0; 2834 } 2835 2836 static void mlx4_clear_steering(struct mlx4_dev *dev) 2837 { 2838 struct mlx4_priv *priv = mlx4_priv(dev); 2839 struct mlx4_steer_index *entry, *tmp_entry; 2840 struct mlx4_promisc_qp *pqp, *tmp_pqp; 2841 int num_entries = dev->caps.num_ports; 2842 int i, j; 2843 2844 for (i = 0; i < num_entries; i++) { 2845 for (j = 0; j < MLX4_NUM_STEERS; j++) { 2846 list_for_each_entry_safe(pqp, tmp_pqp, 2847 &priv->steer[i].promisc_qps[j], 2848 list) { 2849 list_del(&pqp->list); 2850 kfree(pqp); 2851 } 2852 list_for_each_entry_safe(entry, tmp_entry, 2853 &priv->steer[i].steer_entries[j], 2854 list) { 2855 list_del(&entry->list); 2856 list_for_each_entry_safe(pqp, tmp_pqp, 2857 &entry->duplicates, 2858 list) { 2859 list_del(&pqp->list); 2860 kfree(pqp); 2861 } 2862 kfree(entry); 2863 } 2864 } 2865 } 2866 kfree(priv->steer); 2867 } 2868 2869 static int extended_func_num(struct pci_dev *pdev) 2870 { 2871 return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn); 2872 } 2873 2874 #define MLX4_OWNER_BASE 0x8069c 2875 #define MLX4_OWNER_SIZE 4 2876 2877 static int mlx4_get_ownership(struct mlx4_dev *dev) 2878 { 2879 void __iomem *owner; 2880 u32 ret; 2881 2882 if (pci_channel_offline(dev->persist->pdev)) 2883 return -EIO; 2884 2885 owner = ioremap(pci_resource_start(dev->persist->pdev, 0) + 2886 MLX4_OWNER_BASE, 2887 MLX4_OWNER_SIZE); 2888 if (!owner) { 2889 mlx4_err(dev, "Failed to obtain ownership bit\n"); 2890 return -ENOMEM; 2891 } 2892 2893 ret = readl(owner); 2894 iounmap(owner); 2895 return (int) !!ret; 2896 } 2897 2898 static void mlx4_free_ownership(struct mlx4_dev *dev) 2899 { 2900 void __iomem *owner; 2901 2902 if (pci_channel_offline(dev->persist->pdev)) 2903 return; 2904 2905 owner = ioremap(pci_resource_start(dev->persist->pdev, 0) + 2906 MLX4_OWNER_BASE, 2907 MLX4_OWNER_SIZE); 2908 if (!owner) { 2909 mlx4_err(dev, "Failed to obtain ownership bit\n"); 2910 return; 2911 } 2912 writel(0, owner); 2913 msleep(1000); 2914 iounmap(owner); 2915 } 2916 2917 #define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\ 2918 !!((flags) & MLX4_FLAG_MASTER)) 2919 2920 static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev, 2921 u8 total_vfs, int existing_vfs, int reset_flow) 2922 { 2923 u64 dev_flags = dev->flags; 2924 int err = 0; 2925 int fw_enabled_sriov_vfs = min(pci_sriov_get_totalvfs(pdev), 2926 MLX4_MAX_NUM_VF); 2927 2928 if (reset_flow) { 2929 dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs), 2930 GFP_KERNEL); 2931 if (!dev->dev_vfs) 2932 goto free_mem; 2933 return dev_flags; 2934 } 2935 2936 atomic_inc(&pf_loading); 2937 if (dev->flags & MLX4_FLAG_SRIOV) { 2938 if (existing_vfs != total_vfs) { 2939 mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n", 2940 existing_vfs, total_vfs); 2941 total_vfs = existing_vfs; 2942 } 2943 } 2944 2945 dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL); 2946 if (NULL == dev->dev_vfs) { 2947 mlx4_err(dev, "Failed to allocate memory for VFs\n"); 2948 goto disable_sriov; 2949 } 2950 2951 if (!(dev->flags & MLX4_FLAG_SRIOV)) { 2952 if (total_vfs > fw_enabled_sriov_vfs) { 2953 mlx4_err(dev, "requested vfs (%d) > available vfs (%d). Continuing without SR_IOV\n", 2954 total_vfs, fw_enabled_sriov_vfs); 2955 err = -ENOMEM; 2956 goto disable_sriov; 2957 } 2958 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs); 2959 err = pci_enable_sriov(pdev, total_vfs); 2960 } 2961 if (err) { 2962 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n", 2963 err); 2964 goto disable_sriov; 2965 } else { 2966 mlx4_warn(dev, "Running in master mode\n"); 2967 dev_flags |= MLX4_FLAG_SRIOV | 2968 MLX4_FLAG_MASTER; 2969 dev_flags &= ~MLX4_FLAG_SLAVE; 2970 dev->persist->num_vfs = total_vfs; 2971 } 2972 return dev_flags; 2973 2974 disable_sriov: 2975 atomic_dec(&pf_loading); 2976 free_mem: 2977 dev->persist->num_vfs = 0; 2978 kfree(dev->dev_vfs); 2979 dev->dev_vfs = NULL; 2980 return dev_flags & ~MLX4_FLAG_MASTER; 2981 } 2982 2983 enum { 2984 MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1, 2985 }; 2986 2987 static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap, 2988 int *nvfs) 2989 { 2990 int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2]; 2991 /* Checking for 64 VFs as a limitation of CX2 */ 2992 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) && 2993 requested_vfs >= 64) { 2994 mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n", 2995 requested_vfs); 2996 return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64; 2997 } 2998 return 0; 2999 } 3000 3001 static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data, 3002 int total_vfs, int *nvfs, struct mlx4_priv *priv, 3003 int reset_flow) 3004 { 3005 struct mlx4_dev *dev; 3006 unsigned sum = 0; 3007 int err; 3008 int port; 3009 int i; 3010 struct mlx4_dev_cap *dev_cap = NULL; 3011 int existing_vfs = 0; 3012 3013 dev = &priv->dev; 3014 3015 INIT_LIST_HEAD(&priv->ctx_list); 3016 spin_lock_init(&priv->ctx_lock); 3017 3018 mutex_init(&priv->port_mutex); 3019 mutex_init(&priv->bond_mutex); 3020 3021 INIT_LIST_HEAD(&priv->pgdir_list); 3022 mutex_init(&priv->pgdir_mutex); 3023 3024 INIT_LIST_HEAD(&priv->bf_list); 3025 mutex_init(&priv->bf_mutex); 3026 3027 dev->rev_id = pdev->revision; 3028 dev->numa_node = dev_to_node(&pdev->dev); 3029 3030 /* Detect if this device is a virtual function */ 3031 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) { 3032 mlx4_warn(dev, "Detected virtual function - running in slave mode\n"); 3033 dev->flags |= MLX4_FLAG_SLAVE; 3034 } else { 3035 /* We reset the device and enable SRIOV only for physical 3036 * devices. Try to claim ownership on the device; 3037 * if already taken, skip -- do not allow multiple PFs */ 3038 err = mlx4_get_ownership(dev); 3039 if (err) { 3040 if (err < 0) 3041 return err; 3042 else { 3043 mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n"); 3044 return -EINVAL; 3045 } 3046 } 3047 3048 atomic_set(&priv->opreq_count, 0); 3049 INIT_WORK(&priv->opreq_task, mlx4_opreq_action); 3050 3051 /* 3052 * Now reset the HCA before we touch the PCI capabilities or 3053 * attempt a firmware command, since a boot ROM may have left 3054 * the HCA in an undefined state. 3055 */ 3056 err = mlx4_reset(dev); 3057 if (err) { 3058 mlx4_err(dev, "Failed to reset HCA, aborting\n"); 3059 goto err_sriov; 3060 } 3061 3062 if (total_vfs) { 3063 dev->flags = MLX4_FLAG_MASTER; 3064 existing_vfs = pci_num_vf(pdev); 3065 if (existing_vfs) 3066 dev->flags |= MLX4_FLAG_SRIOV; 3067 dev->persist->num_vfs = total_vfs; 3068 } 3069 } 3070 3071 /* on load remove any previous indication of internal error, 3072 * device is up. 3073 */ 3074 dev->persist->state = MLX4_DEVICE_STATE_UP; 3075 3076 slave_start: 3077 err = mlx4_cmd_init(dev); 3078 if (err) { 3079 mlx4_err(dev, "Failed to init command interface, aborting\n"); 3080 goto err_sriov; 3081 } 3082 3083 /* In slave functions, the communication channel must be initialized 3084 * before posting commands. Also, init num_slaves before calling 3085 * mlx4_init_hca */ 3086 if (mlx4_is_mfunc(dev)) { 3087 if (mlx4_is_master(dev)) { 3088 dev->num_slaves = MLX4_MAX_NUM_SLAVES; 3089 3090 } else { 3091 dev->num_slaves = 0; 3092 err = mlx4_multi_func_init(dev); 3093 if (err) { 3094 mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n"); 3095 goto err_cmd; 3096 } 3097 } 3098 } 3099 3100 err = mlx4_init_fw(dev); 3101 if (err) { 3102 mlx4_err(dev, "Failed to init fw, aborting.\n"); 3103 goto err_mfunc; 3104 } 3105 3106 if (mlx4_is_master(dev)) { 3107 /* when we hit the goto slave_start below, dev_cap already initialized */ 3108 if (!dev_cap) { 3109 dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL); 3110 3111 if (!dev_cap) { 3112 err = -ENOMEM; 3113 goto err_fw; 3114 } 3115 3116 err = mlx4_QUERY_DEV_CAP(dev, dev_cap); 3117 if (err) { 3118 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); 3119 goto err_fw; 3120 } 3121 3122 if (mlx4_check_dev_cap(dev, dev_cap, nvfs)) 3123 goto err_fw; 3124 3125 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) { 3126 u64 dev_flags = mlx4_enable_sriov(dev, pdev, 3127 total_vfs, 3128 existing_vfs, 3129 reset_flow); 3130 3131 mlx4_close_fw(dev); 3132 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); 3133 dev->flags = dev_flags; 3134 if (!SRIOV_VALID_STATE(dev->flags)) { 3135 mlx4_err(dev, "Invalid SRIOV state\n"); 3136 goto err_sriov; 3137 } 3138 err = mlx4_reset(dev); 3139 if (err) { 3140 mlx4_err(dev, "Failed to reset HCA, aborting.\n"); 3141 goto err_sriov; 3142 } 3143 goto slave_start; 3144 } 3145 } else { 3146 /* Legacy mode FW requires SRIOV to be enabled before 3147 * doing QUERY_DEV_CAP, since max_eq's value is different if 3148 * SRIOV is enabled. 3149 */ 3150 memset(dev_cap, 0, sizeof(*dev_cap)); 3151 err = mlx4_QUERY_DEV_CAP(dev, dev_cap); 3152 if (err) { 3153 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); 3154 goto err_fw; 3155 } 3156 3157 if (mlx4_check_dev_cap(dev, dev_cap, nvfs)) 3158 goto err_fw; 3159 } 3160 } 3161 3162 err = mlx4_init_hca(dev); 3163 if (err) { 3164 if (err == -EACCES) { 3165 /* Not primary Physical function 3166 * Running in slave mode */ 3167 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); 3168 /* We're not a PF */ 3169 if (dev->flags & MLX4_FLAG_SRIOV) { 3170 if (!existing_vfs) 3171 pci_disable_sriov(pdev); 3172 if (mlx4_is_master(dev) && !reset_flow) 3173 atomic_dec(&pf_loading); 3174 dev->flags &= ~MLX4_FLAG_SRIOV; 3175 } 3176 if (!mlx4_is_slave(dev)) 3177 mlx4_free_ownership(dev); 3178 dev->flags |= MLX4_FLAG_SLAVE; 3179 dev->flags &= ~MLX4_FLAG_MASTER; 3180 goto slave_start; 3181 } else 3182 goto err_fw; 3183 } 3184 3185 if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) { 3186 u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs, 3187 existing_vfs, reset_flow); 3188 3189 if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) { 3190 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR); 3191 dev->flags = dev_flags; 3192 err = mlx4_cmd_init(dev); 3193 if (err) { 3194 /* Only VHCR is cleaned up, so could still 3195 * send FW commands 3196 */ 3197 mlx4_err(dev, "Failed to init VHCR command interface, aborting\n"); 3198 goto err_close; 3199 } 3200 } else { 3201 dev->flags = dev_flags; 3202 } 3203 3204 if (!SRIOV_VALID_STATE(dev->flags)) { 3205 mlx4_err(dev, "Invalid SRIOV state\n"); 3206 goto err_close; 3207 } 3208 } 3209 3210 /* check if the device is functioning at its maximum possible speed. 3211 * No return code for this call, just warn the user in case of PCI 3212 * express device capabilities are under-satisfied by the bus. 3213 */ 3214 if (!mlx4_is_slave(dev)) 3215 mlx4_check_pcie_caps(dev); 3216 3217 /* In master functions, the communication channel must be initialized 3218 * after obtaining its address from fw */ 3219 if (mlx4_is_master(dev)) { 3220 if (dev->caps.num_ports < 2 && 3221 num_vfs_argc > 1) { 3222 err = -EINVAL; 3223 mlx4_err(dev, 3224 "Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n", 3225 dev->caps.num_ports); 3226 goto err_close; 3227 } 3228 memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs)); 3229 3230 for (i = 0; 3231 i < sizeof(dev->persist->nvfs)/ 3232 sizeof(dev->persist->nvfs[0]); i++) { 3233 unsigned j; 3234 3235 for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) { 3236 dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1; 3237 dev->dev_vfs[sum].n_ports = i < 2 ? 1 : 3238 dev->caps.num_ports; 3239 } 3240 } 3241 3242 /* In master functions, the communication channel 3243 * must be initialized after obtaining its address from fw 3244 */ 3245 err = mlx4_multi_func_init(dev); 3246 if (err) { 3247 mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n"); 3248 goto err_close; 3249 } 3250 } 3251 3252 err = mlx4_alloc_eq_table(dev); 3253 if (err) 3254 goto err_master_mfunc; 3255 3256 bitmap_zero(priv->msix_ctl.pool_bm, MAX_MSIX); 3257 mutex_init(&priv->msix_ctl.pool_lock); 3258 3259 mlx4_enable_msi_x(dev); 3260 if ((mlx4_is_mfunc(dev)) && 3261 !(dev->flags & MLX4_FLAG_MSI_X)) { 3262 err = -ENOSYS; 3263 mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n"); 3264 goto err_free_eq; 3265 } 3266 3267 if (!mlx4_is_slave(dev)) { 3268 err = mlx4_init_steering(dev); 3269 if (err) 3270 goto err_disable_msix; 3271 } 3272 3273 err = mlx4_setup_hca(dev); 3274 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) && 3275 !mlx4_is_mfunc(dev)) { 3276 dev->flags &= ~MLX4_FLAG_MSI_X; 3277 dev->caps.num_comp_vectors = 1; 3278 pci_disable_msix(pdev); 3279 err = mlx4_setup_hca(dev); 3280 } 3281 3282 if (err) 3283 goto err_steer; 3284 3285 mlx4_init_quotas(dev); 3286 /* When PF resources are ready arm its comm channel to enable 3287 * getting commands 3288 */ 3289 if (mlx4_is_master(dev)) { 3290 err = mlx4_ARM_COMM_CHANNEL(dev); 3291 if (err) { 3292 mlx4_err(dev, " Failed to arm comm channel eq: %x\n", 3293 err); 3294 goto err_steer; 3295 } 3296 } 3297 3298 for (port = 1; port <= dev->caps.num_ports; port++) { 3299 err = mlx4_init_port_info(dev, port); 3300 if (err) 3301 goto err_port; 3302 } 3303 3304 priv->v2p.port1 = 1; 3305 priv->v2p.port2 = 2; 3306 3307 err = mlx4_register_device(dev); 3308 if (err) 3309 goto err_port; 3310 3311 mlx4_request_modules(dev); 3312 3313 mlx4_sense_init(dev); 3314 mlx4_start_sense(dev); 3315 3316 priv->removed = 0; 3317 3318 if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow) 3319 atomic_dec(&pf_loading); 3320 3321 kfree(dev_cap); 3322 return 0; 3323 3324 err_port: 3325 for (--port; port >= 1; --port) 3326 mlx4_cleanup_port_info(&priv->port[port]); 3327 3328 mlx4_cleanup_default_counters(dev); 3329 if (!mlx4_is_slave(dev)) 3330 mlx4_cleanup_counters_table(dev); 3331 mlx4_cleanup_qp_table(dev); 3332 mlx4_cleanup_srq_table(dev); 3333 mlx4_cleanup_cq_table(dev); 3334 mlx4_cmd_use_polling(dev); 3335 mlx4_cleanup_eq_table(dev); 3336 mlx4_cleanup_mcg_table(dev); 3337 mlx4_cleanup_mr_table(dev); 3338 mlx4_cleanup_xrcd_table(dev); 3339 mlx4_cleanup_pd_table(dev); 3340 mlx4_cleanup_uar_table(dev); 3341 3342 err_steer: 3343 if (!mlx4_is_slave(dev)) 3344 mlx4_clear_steering(dev); 3345 3346 err_disable_msix: 3347 if (dev->flags & MLX4_FLAG_MSI_X) 3348 pci_disable_msix(pdev); 3349 3350 err_free_eq: 3351 mlx4_free_eq_table(dev); 3352 3353 err_master_mfunc: 3354 if (mlx4_is_master(dev)) { 3355 mlx4_free_resource_tracker(dev, RES_TR_FREE_STRUCTS_ONLY); 3356 mlx4_multi_func_cleanup(dev); 3357 } 3358 3359 if (mlx4_is_slave(dev)) { 3360 kfree(dev->caps.qp0_qkey); 3361 kfree(dev->caps.qp0_tunnel); 3362 kfree(dev->caps.qp0_proxy); 3363 kfree(dev->caps.qp1_tunnel); 3364 kfree(dev->caps.qp1_proxy); 3365 } 3366 3367 err_close: 3368 mlx4_close_hca(dev); 3369 3370 err_fw: 3371 mlx4_close_fw(dev); 3372 3373 err_mfunc: 3374 if (mlx4_is_slave(dev)) 3375 mlx4_multi_func_cleanup(dev); 3376 3377 err_cmd: 3378 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); 3379 3380 err_sriov: 3381 if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) { 3382 pci_disable_sriov(pdev); 3383 dev->flags &= ~MLX4_FLAG_SRIOV; 3384 } 3385 3386 if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow) 3387 atomic_dec(&pf_loading); 3388 3389 kfree(priv->dev.dev_vfs); 3390 3391 if (!mlx4_is_slave(dev)) 3392 mlx4_free_ownership(dev); 3393 3394 kfree(dev_cap); 3395 return err; 3396 } 3397 3398 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data, 3399 struct mlx4_priv *priv) 3400 { 3401 int err; 3402 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; 3403 int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0}; 3404 const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = { 3405 {2, 0, 0}, {0, 1, 2}, {0, 1, 2} }; 3406 unsigned total_vfs = 0; 3407 unsigned int i; 3408 3409 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev)); 3410 3411 err = pci_enable_device(pdev); 3412 if (err) { 3413 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); 3414 return err; 3415 } 3416 3417 /* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS 3418 * per port, we must limit the number of VFs to 63 (since their are 3419 * 128 MACs) 3420 */ 3421 for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc; 3422 total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) { 3423 nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i]; 3424 if (nvfs[i] < 0) { 3425 dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n"); 3426 err = -EINVAL; 3427 goto err_disable_pdev; 3428 } 3429 } 3430 for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc; 3431 i++) { 3432 prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i]; 3433 if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) { 3434 dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n"); 3435 err = -EINVAL; 3436 goto err_disable_pdev; 3437 } 3438 } 3439 if (total_vfs > MLX4_MAX_NUM_VF) { 3440 dev_err(&pdev->dev, 3441 "Requested more VF's (%d) than allowed by hw (%d)\n", 3442 total_vfs, MLX4_MAX_NUM_VF); 3443 err = -EINVAL; 3444 goto err_disable_pdev; 3445 } 3446 3447 for (i = 0; i < MLX4_MAX_PORTS; i++) { 3448 if (nvfs[i] + nvfs[2] > MLX4_MAX_NUM_VF_P_PORT) { 3449 dev_err(&pdev->dev, 3450 "Requested more VF's (%d) for port (%d) than allowed by driver (%d)\n", 3451 nvfs[i] + nvfs[2], i + 1, 3452 MLX4_MAX_NUM_VF_P_PORT); 3453 err = -EINVAL; 3454 goto err_disable_pdev; 3455 } 3456 } 3457 3458 /* Check for BARs. */ 3459 if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) && 3460 !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 3461 dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n", 3462 pci_dev_data, pci_resource_flags(pdev, 0)); 3463 err = -ENODEV; 3464 goto err_disable_pdev; 3465 } 3466 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 3467 dev_err(&pdev->dev, "Missing UAR, aborting\n"); 3468 err = -ENODEV; 3469 goto err_disable_pdev; 3470 } 3471 3472 err = pci_request_regions(pdev, DRV_NAME); 3473 if (err) { 3474 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n"); 3475 goto err_disable_pdev; 3476 } 3477 3478 pci_set_master(pdev); 3479 3480 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 3481 if (err) { 3482 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n"); 3483 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 3484 if (err) { 3485 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n"); 3486 goto err_release_regions; 3487 } 3488 } 3489 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 3490 if (err) { 3491 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit consistent PCI DMA mask\n"); 3492 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 3493 if (err) { 3494 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n"); 3495 goto err_release_regions; 3496 } 3497 } 3498 3499 /* Allow large DMA segments, up to the firmware limit of 1 GB */ 3500 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024); 3501 /* Detect if this device is a virtual function */ 3502 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) { 3503 /* When acting as pf, we normally skip vfs unless explicitly 3504 * requested to probe them. 3505 */ 3506 if (total_vfs) { 3507 unsigned vfs_offset = 0; 3508 3509 for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && 3510 vfs_offset + nvfs[i] < extended_func_num(pdev); 3511 vfs_offset += nvfs[i], i++) 3512 ; 3513 if (i == sizeof(nvfs)/sizeof(nvfs[0])) { 3514 err = -ENODEV; 3515 goto err_release_regions; 3516 } 3517 if ((extended_func_num(pdev) - vfs_offset) 3518 > prb_vf[i]) { 3519 dev_warn(&pdev->dev, "Skipping virtual function:%d\n", 3520 extended_func_num(pdev)); 3521 err = -ENODEV; 3522 goto err_release_regions; 3523 } 3524 } 3525 } 3526 3527 err = mlx4_catas_init(&priv->dev); 3528 if (err) 3529 goto err_release_regions; 3530 3531 err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0); 3532 if (err) 3533 goto err_catas; 3534 3535 return 0; 3536 3537 err_catas: 3538 mlx4_catas_end(&priv->dev); 3539 3540 err_release_regions: 3541 pci_release_regions(pdev); 3542 3543 err_disable_pdev: 3544 pci_disable_device(pdev); 3545 pci_set_drvdata(pdev, NULL); 3546 return err; 3547 } 3548 3549 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) 3550 { 3551 struct mlx4_priv *priv; 3552 struct mlx4_dev *dev; 3553 int ret; 3554 3555 printk_once(KERN_INFO "%s", mlx4_version); 3556 3557 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 3558 if (!priv) 3559 return -ENOMEM; 3560 3561 dev = &priv->dev; 3562 dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL); 3563 if (!dev->persist) { 3564 kfree(priv); 3565 return -ENOMEM; 3566 } 3567 dev->persist->pdev = pdev; 3568 dev->persist->dev = dev; 3569 pci_set_drvdata(pdev, dev->persist); 3570 priv->pci_dev_data = id->driver_data; 3571 mutex_init(&dev->persist->device_state_mutex); 3572 mutex_init(&dev->persist->interface_state_mutex); 3573 3574 ret = __mlx4_init_one(pdev, id->driver_data, priv); 3575 if (ret) { 3576 kfree(dev->persist); 3577 kfree(priv); 3578 } else { 3579 pci_save_state(pdev); 3580 } 3581 3582 return ret; 3583 } 3584 3585 static void mlx4_clean_dev(struct mlx4_dev *dev) 3586 { 3587 struct mlx4_dev_persistent *persist = dev->persist; 3588 struct mlx4_priv *priv = mlx4_priv(dev); 3589 unsigned long flags = (dev->flags & RESET_PERSIST_MASK_FLAGS); 3590 3591 memset(priv, 0, sizeof(*priv)); 3592 priv->dev.persist = persist; 3593 priv->dev.flags = flags; 3594 } 3595 3596 static void mlx4_unload_one(struct pci_dev *pdev) 3597 { 3598 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3599 struct mlx4_dev *dev = persist->dev; 3600 struct mlx4_priv *priv = mlx4_priv(dev); 3601 int pci_dev_data; 3602 int p, i; 3603 3604 if (priv->removed) 3605 return; 3606 3607 /* saving current ports type for further use */ 3608 for (i = 0; i < dev->caps.num_ports; i++) { 3609 dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1]; 3610 dev->persist->curr_port_poss_type[i] = dev->caps. 3611 possible_type[i + 1]; 3612 } 3613 3614 pci_dev_data = priv->pci_dev_data; 3615 3616 mlx4_stop_sense(dev); 3617 mlx4_unregister_device(dev); 3618 3619 for (p = 1; p <= dev->caps.num_ports; p++) { 3620 mlx4_cleanup_port_info(&priv->port[p]); 3621 mlx4_CLOSE_PORT(dev, p); 3622 } 3623 3624 if (mlx4_is_master(dev)) 3625 mlx4_free_resource_tracker(dev, 3626 RES_TR_FREE_SLAVES_ONLY); 3627 3628 mlx4_cleanup_default_counters(dev); 3629 if (!mlx4_is_slave(dev)) 3630 mlx4_cleanup_counters_table(dev); 3631 mlx4_cleanup_qp_table(dev); 3632 mlx4_cleanup_srq_table(dev); 3633 mlx4_cleanup_cq_table(dev); 3634 mlx4_cmd_use_polling(dev); 3635 mlx4_cleanup_eq_table(dev); 3636 mlx4_cleanup_mcg_table(dev); 3637 mlx4_cleanup_mr_table(dev); 3638 mlx4_cleanup_xrcd_table(dev); 3639 mlx4_cleanup_pd_table(dev); 3640 3641 if (mlx4_is_master(dev)) 3642 mlx4_free_resource_tracker(dev, 3643 RES_TR_FREE_STRUCTS_ONLY); 3644 3645 iounmap(priv->kar); 3646 mlx4_uar_free(dev, &priv->driver_uar); 3647 mlx4_cleanup_uar_table(dev); 3648 if (!mlx4_is_slave(dev)) 3649 mlx4_clear_steering(dev); 3650 mlx4_free_eq_table(dev); 3651 if (mlx4_is_master(dev)) 3652 mlx4_multi_func_cleanup(dev); 3653 mlx4_close_hca(dev); 3654 mlx4_close_fw(dev); 3655 if (mlx4_is_slave(dev)) 3656 mlx4_multi_func_cleanup(dev); 3657 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); 3658 3659 if (dev->flags & MLX4_FLAG_MSI_X) 3660 pci_disable_msix(pdev); 3661 3662 if (!mlx4_is_slave(dev)) 3663 mlx4_free_ownership(dev); 3664 3665 kfree(dev->caps.qp0_qkey); 3666 kfree(dev->caps.qp0_tunnel); 3667 kfree(dev->caps.qp0_proxy); 3668 kfree(dev->caps.qp1_tunnel); 3669 kfree(dev->caps.qp1_proxy); 3670 kfree(dev->dev_vfs); 3671 3672 mlx4_clean_dev(dev); 3673 priv->pci_dev_data = pci_dev_data; 3674 priv->removed = 1; 3675 } 3676 3677 static void mlx4_remove_one(struct pci_dev *pdev) 3678 { 3679 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3680 struct mlx4_dev *dev = persist->dev; 3681 struct mlx4_priv *priv = mlx4_priv(dev); 3682 int active_vfs = 0; 3683 3684 mutex_lock(&persist->interface_state_mutex); 3685 persist->interface_state |= MLX4_INTERFACE_STATE_DELETION; 3686 mutex_unlock(&persist->interface_state_mutex); 3687 3688 /* Disabling SR-IOV is not allowed while there are active vf's */ 3689 if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) { 3690 active_vfs = mlx4_how_many_lives_vf(dev); 3691 if (active_vfs) { 3692 pr_warn("Removing PF when there are active VF's !!\n"); 3693 pr_warn("Will not disable SR-IOV.\n"); 3694 } 3695 } 3696 3697 /* device marked to be under deletion running now without the lock 3698 * letting other tasks to be terminated 3699 */ 3700 if (persist->interface_state & MLX4_INTERFACE_STATE_UP) 3701 mlx4_unload_one(pdev); 3702 else 3703 mlx4_info(dev, "%s: interface is down\n", __func__); 3704 mlx4_catas_end(dev); 3705 if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) { 3706 mlx4_warn(dev, "Disabling SR-IOV\n"); 3707 pci_disable_sriov(pdev); 3708 } 3709 3710 pci_release_regions(pdev); 3711 pci_disable_device(pdev); 3712 kfree(dev->persist); 3713 kfree(priv); 3714 pci_set_drvdata(pdev, NULL); 3715 } 3716 3717 static int restore_current_port_types(struct mlx4_dev *dev, 3718 enum mlx4_port_type *types, 3719 enum mlx4_port_type *poss_types) 3720 { 3721 struct mlx4_priv *priv = mlx4_priv(dev); 3722 int err, i; 3723 3724 mlx4_stop_sense(dev); 3725 3726 mutex_lock(&priv->port_mutex); 3727 for (i = 0; i < dev->caps.num_ports; i++) 3728 dev->caps.possible_type[i + 1] = poss_types[i]; 3729 err = mlx4_change_port_types(dev, types); 3730 mlx4_start_sense(dev); 3731 mutex_unlock(&priv->port_mutex); 3732 3733 return err; 3734 } 3735 3736 int mlx4_restart_one(struct pci_dev *pdev) 3737 { 3738 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3739 struct mlx4_dev *dev = persist->dev; 3740 struct mlx4_priv *priv = mlx4_priv(dev); 3741 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; 3742 int pci_dev_data, err, total_vfs; 3743 3744 pci_dev_data = priv->pci_dev_data; 3745 total_vfs = dev->persist->num_vfs; 3746 memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); 3747 3748 mlx4_unload_one(pdev); 3749 err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1); 3750 if (err) { 3751 mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n", 3752 __func__, pci_name(pdev), err); 3753 return err; 3754 } 3755 3756 err = restore_current_port_types(dev, dev->persist->curr_port_type, 3757 dev->persist->curr_port_poss_type); 3758 if (err) 3759 mlx4_err(dev, "could not restore original port types (%d)\n", 3760 err); 3761 3762 return err; 3763 } 3764 3765 static const struct pci_device_id mlx4_pci_table[] = { 3766 /* MT25408 "Hermon" SDR */ 3767 { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3768 /* MT25408 "Hermon" DDR */ 3769 { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3770 /* MT25408 "Hermon" QDR */ 3771 { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3772 /* MT25408 "Hermon" DDR PCIe gen2 */ 3773 { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3774 /* MT25408 "Hermon" QDR PCIe gen2 */ 3775 { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3776 /* MT25408 "Hermon" EN 10GigE */ 3777 { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3778 /* MT25408 "Hermon" EN 10GigE PCIe gen2 */ 3779 { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3780 /* MT25458 ConnectX EN 10GBASE-T 10GigE */ 3781 { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3782 /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */ 3783 { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3784 /* MT26468 ConnectX EN 10GigE PCIe gen2*/ 3785 { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3786 /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */ 3787 { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3788 /* MT26478 ConnectX2 40GigE PCIe gen2 */ 3789 { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT }, 3790 /* MT25400 Family [ConnectX-2 Virtual Function] */ 3791 { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF }, 3792 /* MT27500 Family [ConnectX-3] */ 3793 { PCI_VDEVICE(MELLANOX, 0x1003), 0 }, 3794 /* MT27500 Family [ConnectX-3 Virtual Function] */ 3795 { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF }, 3796 { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */ 3797 { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */ 3798 { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */ 3799 { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */ 3800 { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */ 3801 { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */ 3802 { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */ 3803 { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */ 3804 { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */ 3805 { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */ 3806 { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */ 3807 { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */ 3808 { 0, } 3809 }; 3810 3811 MODULE_DEVICE_TABLE(pci, mlx4_pci_table); 3812 3813 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev, 3814 pci_channel_state_t state) 3815 { 3816 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3817 3818 mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n"); 3819 mlx4_enter_error_state(persist); 3820 3821 mutex_lock(&persist->interface_state_mutex); 3822 if (persist->interface_state & MLX4_INTERFACE_STATE_UP) 3823 mlx4_unload_one(pdev); 3824 3825 mutex_unlock(&persist->interface_state_mutex); 3826 if (state == pci_channel_io_perm_failure) 3827 return PCI_ERS_RESULT_DISCONNECT; 3828 3829 pci_disable_device(pdev); 3830 return PCI_ERS_RESULT_NEED_RESET; 3831 } 3832 3833 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev) 3834 { 3835 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3836 struct mlx4_dev *dev = persist->dev; 3837 struct mlx4_priv *priv = mlx4_priv(dev); 3838 int ret; 3839 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; 3840 int total_vfs; 3841 3842 mlx4_err(dev, "mlx4_pci_slot_reset was called\n"); 3843 ret = pci_enable_device(pdev); 3844 if (ret) { 3845 mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret); 3846 return PCI_ERS_RESULT_DISCONNECT; 3847 } 3848 3849 pci_set_master(pdev); 3850 pci_restore_state(pdev); 3851 pci_save_state(pdev); 3852 3853 total_vfs = dev->persist->num_vfs; 3854 memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); 3855 3856 mutex_lock(&persist->interface_state_mutex); 3857 if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) { 3858 ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs, 3859 priv, 1); 3860 if (ret) { 3861 mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n", 3862 __func__, ret); 3863 goto end; 3864 } 3865 3866 ret = restore_current_port_types(dev, dev->persist-> 3867 curr_port_type, dev->persist-> 3868 curr_port_poss_type); 3869 if (ret) 3870 mlx4_err(dev, "could not restore original port types (%d)\n", ret); 3871 } 3872 end: 3873 mutex_unlock(&persist->interface_state_mutex); 3874 3875 return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; 3876 } 3877 3878 static void mlx4_shutdown(struct pci_dev *pdev) 3879 { 3880 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); 3881 3882 mlx4_info(persist->dev, "mlx4_shutdown was called\n"); 3883 mutex_lock(&persist->interface_state_mutex); 3884 if (persist->interface_state & MLX4_INTERFACE_STATE_UP) 3885 mlx4_unload_one(pdev); 3886 mutex_unlock(&persist->interface_state_mutex); 3887 } 3888 3889 static const struct pci_error_handlers mlx4_err_handler = { 3890 .error_detected = mlx4_pci_err_detected, 3891 .slot_reset = mlx4_pci_slot_reset, 3892 }; 3893 3894 static struct pci_driver mlx4_driver = { 3895 .name = DRV_NAME, 3896 .id_table = mlx4_pci_table, 3897 .probe = mlx4_init_one, 3898 .shutdown = mlx4_shutdown, 3899 .remove = mlx4_remove_one, 3900 .err_handler = &mlx4_err_handler, 3901 }; 3902 3903 static int __init mlx4_verify_params(void) 3904 { 3905 if ((log_num_mac < 0) || (log_num_mac > 7)) { 3906 pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac); 3907 return -1; 3908 } 3909 3910 if (log_num_vlan != 0) 3911 pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n", 3912 MLX4_LOG_NUM_VLANS); 3913 3914 if (use_prio != 0) 3915 pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n"); 3916 3917 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) { 3918 pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n", 3919 log_mtts_per_seg); 3920 return -1; 3921 } 3922 3923 /* Check if module param for ports type has legal combination */ 3924 if (port_type_array[0] == false && port_type_array[1] == true) { 3925 pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n"); 3926 port_type_array[0] = true; 3927 } 3928 3929 if (mlx4_log_num_mgm_entry_size < -7 || 3930 (mlx4_log_num_mgm_entry_size > 0 && 3931 (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE || 3932 mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) { 3933 pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n", 3934 mlx4_log_num_mgm_entry_size, 3935 MLX4_MIN_MGM_LOG_ENTRY_SIZE, 3936 MLX4_MAX_MGM_LOG_ENTRY_SIZE); 3937 return -1; 3938 } 3939 3940 return 0; 3941 } 3942 3943 static int __init mlx4_init(void) 3944 { 3945 int ret; 3946 3947 if (mlx4_verify_params()) 3948 return -EINVAL; 3949 3950 3951 mlx4_wq = create_singlethread_workqueue("mlx4"); 3952 if (!mlx4_wq) 3953 return -ENOMEM; 3954 3955 ret = pci_register_driver(&mlx4_driver); 3956 if (ret < 0) 3957 destroy_workqueue(mlx4_wq); 3958 return ret < 0 ? ret : 0; 3959 } 3960 3961 static void __exit mlx4_cleanup(void) 3962 { 3963 pci_unregister_driver(&mlx4_driver); 3964 destroy_workqueue(mlx4_wq); 3965 } 3966 3967 module_init(mlx4_init); 3968 module_exit(mlx4_cleanup); 3969