main.c revision 255932
1/* 2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34#include <linux/module.h> 35 36#ifdef __linux__ 37#include <linux/proc_fs.h> 38#endif 39 40#include <linux/init.h> 41#include <linux/slab.h> 42#include <linux/errno.h> 43#include <linux/netdevice.h> 44#include <linux/inetdevice.h> 45#include <linux/rtnetlink.h> 46#include <linux/if_vlan.h> 47#include <linux/bitops.h> 48#include <linux/if_ether.h> 49 50#include <rdma/ib_smi.h> 51#include <rdma/ib_user_verbs.h> 52#include <rdma/ib_addr.h> 53 54#include <linux/mlx4/driver.h> 55#include <linux/mlx4/cmd.h> 56#include <linux/sched.h> 57#include "mlx4_ib.h" 58#include "user.h" 59#include "wc.h" 60 61#define DRV_NAME MLX4_IB_DRV_NAME 62#define DRV_VERSION "1.0" 63#define DRV_RELDATE "April 4, 2008" 64 65#define MLX4_IB_DRIVER_PROC_DIR_NAME "driver/mlx4_ib" 66#define MLX4_IB_MRS_PROC_DIR_NAME "mrs" 67 68MODULE_AUTHOR("Roland Dreier"); 69MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); 70MODULE_LICENSE("Dual BSD/GPL"); 71MODULE_VERSION(DRV_VERSION); 72 73int mlx4_ib_sm_guid_assign = 1; 74 75#ifdef __linux__ 76struct proc_dir_entry *mlx4_mrs_dir_entry; 77static struct proc_dir_entry *mlx4_ib_driver_dir_entry; 78#endif 79 80module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444); 81MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)"); 82 83static char dev_assign_str[512]; 84//module_param_string(dev_assign_str, dev_assign_str, sizeof(dev_assign_str), 0644); 85MODULE_PARM_DESC(dev_assign_str, "Map all device function numbers to " 86 "IB device numbers following the pattern: " 87 "bb:dd.f-0,bb:dd.f-1,... (all numbers are hexadecimals)." 88 " Max supported devices - 32"); 89 90static const char mlx4_ib_version[] = 91 DRV_NAME ": Mellanox ConnectX InfiniBand driver v" 92 DRV_VERSION " (" DRV_RELDATE ")\n"; 93 94struct update_gid_work { 95 struct work_struct work; 96 union ib_gid gids[128]; 97 struct mlx4_ib_dev *dev; 98 int port; 99}; 100 101struct dev_rec { 102 int bus; 103 int dev; 104 int func; 105 int nr; 106}; 107 108#define MAX_DR 32 109static struct dev_rec dr[MAX_DR]; 110 111static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); 112 113static struct workqueue_struct *wq; 114 115static void init_query_mad(struct ib_smp *mad) 116{ 117 mad->base_version = 1; 118 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 119 mad->class_version = 1; 120 mad->method = IB_MGMT_METHOD_GET; 121} 122 123static union ib_gid zgid; 124 125static int mlx4_ib_query_device(struct ib_device *ibdev, 126 struct ib_device_attr *props) 127{ 128 struct mlx4_ib_dev *dev = to_mdev(ibdev); 129 struct ib_smp *in_mad = NULL; 130 struct ib_smp *out_mad = NULL; 131 int err = -ENOMEM; 132 133 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 134 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 135 if (!in_mad || !out_mad) 136 goto out; 137 138 init_query_mad(in_mad); 139 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 140 141 err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS, 142 1, NULL, NULL, in_mad, out_mad); 143 if (err) 144 goto out; 145 146 memset(props, 0, sizeof *props); 147 148 props->fw_ver = dev->dev->caps.fw_ver; 149 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 150 IB_DEVICE_PORT_ACTIVE_EVENT | 151 IB_DEVICE_SYS_IMAGE_GUID | 152 IB_DEVICE_RC_RNR_NAK_GEN | 153 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK | 154 IB_DEVICE_SHARED_MR; 155 156 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) 157 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 158 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) 159 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 160 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) 161 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 162 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) 163 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 164 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) 165 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 166 if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH) 167 props->device_cap_flags |= IB_DEVICE_UD_TSO; 168 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) 169 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; 170 if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && 171 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && 172 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) 173 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 174 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) 175 props->device_cap_flags |= IB_DEVICE_XRC; 176 177 props->device_cap_flags |= IB_DEVICE_QPG; 178 if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) { 179 props->device_cap_flags |= IB_DEVICE_UD_RSS; 180 props->max_rss_tbl_sz = dev->dev->caps.max_rss_tbl_sz; 181 } 182 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 183 0xffffff; 184 props->vendor_part_id = dev->dev->pdev->device; 185 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 186 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 187 188 props->max_mr_size = ~0ull; 189 props->page_size_cap = dev->dev->caps.page_size_cap; 190 props->max_qp = dev->dev->quotas.qp; 191 props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; 192 props->max_sge = min(dev->dev->caps.max_sq_sg, 193 dev->dev->caps.max_rq_sg); 194 props->max_cq = dev->dev->quotas.cq; 195 props->max_cqe = dev->dev->caps.max_cqes; 196 props->max_mr = dev->dev->quotas.mpt; 197 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; 198 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; 199 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; 200 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 201 props->max_srq = dev->dev->quotas.srq; 202 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; 203 props->max_srq_sge = dev->dev->caps.max_srq_sge; 204 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; 205 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; 206 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? 207 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 208 props->masked_atomic_cap = props->atomic_cap; 209 props->max_pkeys = dev->dev->caps.pkey_table_len[1]; 210 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; 211 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; 212 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 213 props->max_mcast_grp; 214 props->max_map_per_fmr = dev->dev->caps.max_fmr_maps; 215 216out: 217 kfree(in_mad); 218 kfree(out_mad); 219 220 return err; 221} 222 223static enum rdma_link_layer 224mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num) 225{ 226 struct mlx4_dev *dev = to_mdev(device)->dev; 227 228 return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? 229 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; 230} 231 232static int ib_link_query_port(struct ib_device *ibdev, u8 port, 233 struct ib_port_attr *props, int netw_view) 234{ 235 struct ib_smp *in_mad = NULL; 236 struct ib_smp *out_mad = NULL; 237 int ext_active_speed; 238 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 239 int err = -ENOMEM; 240 241 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 242 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 243 if (!in_mad || !out_mad) 244 goto out; 245 246 init_query_mad(in_mad); 247 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 248 in_mad->attr_mod = cpu_to_be32(port); 249 250 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) 251 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 252 253 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, 254 in_mad, out_mad); 255 if (err) 256 goto out; 257 258 259 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 260 props->lmc = out_mad->data[34] & 0x7; 261 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 262 props->sm_sl = out_mad->data[36] & 0xf; 263 props->state = out_mad->data[32] & 0xf; 264 props->phys_state = out_mad->data[33] >> 4; 265 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 266 if (netw_view) 267 props->gid_tbl_len = out_mad->data[50]; 268 else 269 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; 270 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; 271 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; 272 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 273 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 274 props->active_width = out_mad->data[31] & 0xf; 275 props->active_speed = out_mad->data[35] >> 4; 276 props->max_mtu = out_mad->data[41] & 0xf; 277 props->active_mtu = out_mad->data[36] >> 4; 278 props->subnet_timeout = out_mad->data[51] & 0x1f; 279 props->max_vl_num = out_mad->data[37] >> 4; 280 props->init_type_reply = out_mad->data[41] >> 4; 281 282 /* Check if extended speeds (EDR/FDR/...) are supported */ 283 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 284 ext_active_speed = out_mad->data[62] >> 4; 285 286 switch (ext_active_speed) { 287 case 1: 288 props->active_speed = IB_SPEED_FDR; 289 break; 290 case 2: 291 props->active_speed = IB_SPEED_EDR; 292 break; 293 } 294 } 295 296 /* If reported active speed is QDR, check if is FDR-10 */ 297 if (props->active_speed == IB_SPEED_QDR) { 298 init_query_mad(in_mad); 299 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; 300 in_mad->attr_mod = cpu_to_be32(port); 301 302 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, 303 NULL, NULL, in_mad, out_mad); 304 if (err) 305 goto out; 306 307 /* Checking LinkSpeedActive for FDR-10 */ 308 if (out_mad->data[15] & 0x1) 309 props->active_speed = IB_SPEED_FDR10; 310 } 311 312 /* Avoid wrong speed value returned by FW if the IB link is down. */ 313 if (props->state == IB_PORT_DOWN) 314 props->active_speed = IB_SPEED_SDR; 315 316out: 317 kfree(in_mad); 318 kfree(out_mad); 319 return err; 320} 321 322static u8 state_to_phys_state(enum ib_port_state state) 323{ 324 return state == IB_PORT_ACTIVE ? 5 : 3; 325} 326 327static int eth_link_query_port(struct ib_device *ibdev, u8 port, 328 struct ib_port_attr *props, int netw_view) 329{ 330 331 struct mlx4_ib_dev *mdev = to_mdev(ibdev); 332 struct mlx4_ib_iboe *iboe = &mdev->iboe; 333 struct net_device *ndev; 334 enum ib_mtu tmp; 335 struct mlx4_cmd_mailbox *mailbox; 336 int err = 0; 337 338 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); 339 if (IS_ERR(mailbox)) 340 return PTR_ERR(mailbox); 341 342 err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, 343 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, 344 MLX4_CMD_WRAPPED); 345 if (err) 346 goto out; 347 348 props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ? 349 IB_WIDTH_4X : IB_WIDTH_1X; 350 props->active_speed = IB_SPEED_QDR; 351 props->port_cap_flags = IB_PORT_CM_SUP; 352 if (netw_view) 353 props->gid_tbl_len = MLX4_ROCE_MAX_GIDS; 354 else 355 props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; 356 357 props->max_msg_sz = mdev->dev->caps.max_msg_sz; 358 props->pkey_tbl_len = 1; 359 props->max_mtu = IB_MTU_4096; 360 props->max_vl_num = 2; 361 props->state = IB_PORT_DOWN; 362 props->phys_state = state_to_phys_state(props->state); 363 props->active_mtu = IB_MTU_256; 364 spin_lock(&iboe->lock); 365 ndev = iboe->netdevs[port - 1]; 366 if (!ndev) 367 goto out_unlock; 368 369 tmp = iboe_get_mtu(ndev->if_mtu); 370 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; 371 372 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? 373 IB_PORT_ACTIVE : IB_PORT_DOWN; 374 props->phys_state = state_to_phys_state(props->state); 375out_unlock: 376 spin_unlock(&iboe->lock); 377out: 378 mlx4_free_cmd_mailbox(mdev->dev, mailbox); 379 return err; 380} 381 382int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 383 struct ib_port_attr *props, int netw_view) 384{ 385 int err; 386 387 memset(props, 0, sizeof *props); 388 389 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? 390 ib_link_query_port(ibdev, port, props, netw_view) : 391 eth_link_query_port(ibdev, port, props, netw_view); 392 393 return err; 394} 395 396static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 397 struct ib_port_attr *props) 398{ 399 /* returns host view */ 400 return __mlx4_ib_query_port(ibdev, port, props, 0); 401} 402 403int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 404 union ib_gid *gid, int netw_view) 405{ 406 struct ib_smp *in_mad = NULL; 407 struct ib_smp *out_mad = NULL; 408 int err = -ENOMEM; 409 struct mlx4_ib_dev *dev = to_mdev(ibdev); 410 int clear = 0; 411 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 412 413 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 414 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 415 if (!in_mad || !out_mad) 416 goto out; 417 418 init_query_mad(in_mad); 419 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 420 in_mad->attr_mod = cpu_to_be32(port); 421 422 if (mlx4_is_mfunc(dev->dev) && netw_view) 423 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 424 425 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); 426 if (err) 427 goto out; 428 429 memcpy(gid->raw, out_mad->data + 8, 8); 430 431 if (mlx4_is_mfunc(dev->dev) && !netw_view) { 432 if (index) { 433 /* For any index > 0, return the null guid */ 434 err = 0; 435 clear = 1; 436 goto out; 437 } 438 } 439 440 init_query_mad(in_mad); 441 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 442 in_mad->attr_mod = cpu_to_be32(index / 8); 443 444 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, 445 NULL, NULL, in_mad, out_mad); 446 if (err) 447 goto out; 448 449 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 450 451out: 452 if (clear) 453 memset(gid->raw + 8, 0, 8); 454 kfree(in_mad); 455 kfree(out_mad); 456 return err; 457} 458 459static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index, 460 union ib_gid *gid) 461{ 462 struct mlx4_ib_dev *dev = to_mdev(ibdev); 463 464 *gid = dev->iboe.gid_table[port - 1][index]; 465 466 return 0; 467} 468 469static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 470 union ib_gid *gid) 471{ 472 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND) 473 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); 474 else 475 return iboe_query_gid(ibdev, port, index, gid); 476} 477 478int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 479 u16 *pkey, int netw_view) 480{ 481 struct ib_smp *in_mad = NULL; 482 struct ib_smp *out_mad = NULL; 483 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 484 int err = -ENOMEM; 485 486 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 487 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 488 if (!in_mad || !out_mad) 489 goto out; 490 491 init_query_mad(in_mad); 492 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 493 in_mad->attr_mod = cpu_to_be32(index / 32); 494 495 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) 496 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 497 498 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, 499 in_mad, out_mad); 500 if (err) 501 goto out; 502 503 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 504 505out: 506 kfree(in_mad); 507 kfree(out_mad); 508 return err; 509} 510 511static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) 512{ 513 return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0); 514} 515 516static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, 517 struct ib_device_modify *props) 518{ 519 struct mlx4_cmd_mailbox *mailbox; 520 unsigned long flags; 521 522 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 523 return -EOPNOTSUPP; 524 525 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) 526 return 0; 527 528 if (mlx4_is_slave(to_mdev(ibdev)->dev)) 529 return -EOPNOTSUPP; 530 531 spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); 532 memcpy(ibdev->node_desc, props->node_desc, 64); 533 spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); 534 535 /* 536 * If possible, pass node desc to FW, so it can generate 537 * a 144 trap. If cmd fails, just ignore. 538 */ 539 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); 540 if (IS_ERR(mailbox)) 541 return 0; 542 543 memset(mailbox->buf, 0, 256); 544 memcpy(mailbox->buf, props->node_desc, 64); 545 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, 546 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 547 548 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); 549 550 return 0; 551} 552 553static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, 554 u32 cap_mask) 555{ 556 struct mlx4_cmd_mailbox *mailbox; 557 int err; 558 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; 559 560 mailbox = mlx4_alloc_cmd_mailbox(dev->dev); 561 if (IS_ERR(mailbox)) 562 return PTR_ERR(mailbox); 563 564 memset(mailbox->buf, 0, 256); 565 566 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { 567 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; 568 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); 569 } else { 570 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; 571 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); 572 } 573 574 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, 575 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); 576 577 mlx4_free_cmd_mailbox(dev->dev, mailbox); 578 return err; 579} 580 581static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, 582 struct ib_port_modify *props) 583{ 584 struct ib_port_attr attr; 585 u32 cap_mask; 586 int err; 587 588 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); 589 590 err = mlx4_ib_query_port(ibdev, port, &attr); 591 if (err) 592 goto out; 593 594 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 595 ~props->clr_port_cap_mask; 596 597 err = mlx4_SET_PORT(to_mdev(ibdev), port, 598 !!(mask & IB_PORT_RESET_QKEY_CNTR), 599 cap_mask); 600 601out: 602 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 603 return err; 604} 605 606static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, 607 struct ib_udata *udata) 608{ 609 struct mlx4_ib_dev *dev = to_mdev(ibdev); 610 struct mlx4_ib_ucontext *context; 611 struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; 612 struct mlx4_ib_alloc_ucontext_resp resp; 613 int err; 614 615 if (!dev->ib_active) 616 return ERR_PTR(-EAGAIN); 617 618 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) { 619 resp_v3.qp_tab_size = dev->dev->caps.num_qps; 620 if (mlx4_wc_enabled()) { 621 resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size; 622 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 623 } else { 624 resp_v3.bf_reg_size = 0; 625 resp_v3.bf_regs_per_page = 0; 626 } 627 } else { 628 resp.dev_caps = dev->dev->caps.userspace_caps; 629 resp.qp_tab_size = dev->dev->caps.num_qps; 630 if (mlx4_wc_enabled()) { 631 resp.bf_reg_size = dev->dev->caps.bf_reg_size; 632 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 633 } else { 634 resp.bf_reg_size = 0; 635 resp.bf_regs_per_page = 0; 636 } 637 resp.cqe_size = dev->dev->caps.cqe_size; 638 } 639 640 context = kmalloc(sizeof *context, GFP_KERNEL); 641 if (!context) 642 return ERR_PTR(-ENOMEM); 643 644 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); 645 if (err) { 646 kfree(context); 647 return ERR_PTR(err); 648 } 649 650 INIT_LIST_HEAD(&context->db_page_list); 651 mutex_init(&context->db_page_mutex); 652 653 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) 654 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3)); 655 else 656 err = ib_copy_to_udata(udata, &resp, sizeof(resp)); 657 658 if (err) { 659 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); 660 kfree(context); 661 return ERR_PTR(-EFAULT); 662 } 663 664 return &context->ibucontext; 665} 666 667static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 668{ 669 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); 670 671 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); 672 kfree(context); 673 674 return 0; 675} 676#ifdef __linux__ 677static unsigned long mlx4_ib_get_unmapped_area(struct file *file, 678 unsigned long addr, 679 unsigned long len, unsigned long pgoff, 680 unsigned long flags) 681{ 682 struct mm_struct *mm; 683 struct vm_area_struct *vma; 684 unsigned long start_addr; 685 unsigned long page_size_order; 686 unsigned long command; 687 688 mm = current->mm; 689 if (addr) 690 return current->mm->get_unmapped_area(file, addr, len, 691 pgoff, flags); 692 693 /* Last 8 bits hold the command others are data per that command */ 694 command = pgoff & MLX4_IB_MMAP_CMD_MASK; 695 if (command != MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) 696 return current->mm->get_unmapped_area(file, addr, len, 697 pgoff, flags); 698 699 page_size_order = pgoff >> MLX4_IB_MMAP_CMD_BITS; 700 /* code is based on the huge-pages get_unmapped_area code */ 701 start_addr = mm->free_area_cache; 702 703 if (len <= mm->cached_hole_size) 704 start_addr = TASK_UNMAPPED_BASE; 705 706 707full_search: 708 addr = ALIGN(start_addr, 1 << page_size_order); 709 710 for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { 711 /* At this point: (!vma || addr < vma->vm_end). */ 712 if (TASK_SIZE - len < addr) { 713 /* 714 * Start a new search - just in case we missed 715 * some holes. 716 */ 717 if (start_addr != TASK_UNMAPPED_BASE) { 718 start_addr = TASK_UNMAPPED_BASE; 719 goto full_search; 720 } 721 return -ENOMEM; 722 } 723 724 if (!vma || addr + len <= vma->vm_start) 725 return addr; 726 addr = ALIGN(vma->vm_end, 1 << page_size_order); 727 } 728} 729 730static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 731{ 732 struct mlx4_ib_dev *dev = to_mdev(context->device); 733 int err; 734 735 /* Last 8 bits hold the command others are data per that command */ 736 unsigned long command = vma->vm_pgoff & MLX4_IB_MMAP_CMD_MASK; 737 738 if (command < MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) { 739 /* compatability handling for commands 0 & 1*/ 740 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 741 return -EINVAL; 742 } 743 if (command == MLX4_IB_MMAP_UAR_PAGE) { 744 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 745 746 if (io_remap_pfn_range(vma, vma->vm_start, 747 to_mucontext(context)->uar.pfn, 748 PAGE_SIZE, vma->vm_page_prot)) 749 return -EAGAIN; 750 } else if (command == MLX4_IB_MMAP_BLUE_FLAME_PAGE && 751 dev->dev->caps.bf_reg_size != 0) { 752 vma->vm_page_prot = pgprot_wc(vma->vm_page_prot); 753 754 if (io_remap_pfn_range(vma, vma->vm_start, 755 to_mucontext(context)->uar.pfn + 756 dev->dev->caps.num_uars, 757 PAGE_SIZE, vma->vm_page_prot)) 758 return -EAGAIN; 759 } else if (command == MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) { 760 /* Getting contiguous physical pages */ 761 unsigned long total_size = vma->vm_end - vma->vm_start; 762 unsigned long page_size_order = (vma->vm_pgoff) >> 763 MLX4_IB_MMAP_CMD_BITS; 764 struct ib_cmem *ib_cmem; 765 ib_cmem = ib_cmem_alloc_contiguous_pages(context, total_size, 766 page_size_order); 767 if (IS_ERR(ib_cmem)) { 768 err = PTR_ERR(ib_cmem); 769 return err; 770 } 771 772 err = ib_cmem_map_contiguous_pages_to_vma(ib_cmem, vma); 773 if (err) { 774 ib_cmem_release_contiguous_pages(ib_cmem); 775 return err; 776 } 777 return 0; 778 } else 779 return -EINVAL; 780 781 return 0; 782} 783#endif 784 785static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, 786 struct ib_ucontext *context, 787 struct ib_udata *udata) 788{ 789 struct mlx4_ib_pd *pd; 790 int err; 791 792 pd = kmalloc(sizeof *pd, GFP_KERNEL); 793 if (!pd) 794 return ERR_PTR(-ENOMEM); 795 796 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); 797 if (err) { 798 kfree(pd); 799 return ERR_PTR(err); 800 } 801 802 if (context) 803 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { 804 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); 805 kfree(pd); 806 return ERR_PTR(-EFAULT); 807 } 808 809 return &pd->ibpd; 810} 811 812static int mlx4_ib_dealloc_pd(struct ib_pd *pd) 813{ 814 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); 815 kfree(pd); 816 817 return 0; 818} 819 820static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev, 821 struct ib_ucontext *context, 822 struct ib_udata *udata) 823{ 824 struct mlx4_ib_xrcd *xrcd; 825 int err; 826 827 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) 828 return ERR_PTR(-ENOSYS); 829 830 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL); 831 if (!xrcd) 832 return ERR_PTR(-ENOMEM); 833 834 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn); 835 if (err) 836 goto err1; 837 838 xrcd->pd = ib_alloc_pd(ibdev); 839 if (IS_ERR(xrcd->pd)) { 840 err = PTR_ERR(xrcd->pd); 841 goto err2; 842 } 843 844 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0); 845 if (IS_ERR(xrcd->cq)) { 846 err = PTR_ERR(xrcd->cq); 847 goto err3; 848 } 849 850 return &xrcd->ibxrcd; 851 852err3: 853 ib_dealloc_pd(xrcd->pd); 854err2: 855 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn); 856err1: 857 kfree(xrcd); 858 return ERR_PTR(err); 859} 860 861static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 862{ 863 ib_destroy_cq(to_mxrcd(xrcd)->cq); 864 ib_dealloc_pd(to_mxrcd(xrcd)->pd); 865 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); 866 kfree(xrcd); 867 868 return 0; 869} 870 871static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) 872{ 873 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 874 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 875 struct mlx4_ib_gid_entry *ge; 876 877 ge = kzalloc(sizeof *ge, GFP_KERNEL); 878 if (!ge) 879 return -ENOMEM; 880 881 ge->gid = *gid; 882 if (mlx4_ib_add_mc(mdev, mqp, gid)) { 883 ge->port = mqp->port; 884 ge->added = 1; 885 } 886 887 mutex_lock(&mqp->mutex); 888 list_add_tail(&ge->list, &mqp->gid_list); 889 mutex_unlock(&mqp->mutex); 890 891 return 0; 892} 893 894int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 895 union ib_gid *gid) 896{ 897 u8 mac[6]; 898 struct net_device *ndev; 899 int ret = 0; 900 901 if (!mqp->port) 902 return 0; 903 904 spin_lock(&mdev->iboe.lock); 905 ndev = mdev->iboe.netdevs[mqp->port - 1]; 906 if (ndev) 907 dev_hold(ndev); 908 spin_unlock(&mdev->iboe.lock); 909 910 if (ndev) { 911 rdma_get_mcast_mac((struct in6_addr *)gid, mac); 912 rtnl_lock(); 913 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac, 6, 0); 914 ret = 1; 915 rtnl_unlock(); 916 dev_put(ndev); 917 } 918 919 return ret; 920} 921 922struct mlx4_ib_steering { 923 struct list_head list; 924 u64 reg_id; 925 union ib_gid gid; 926}; 927 928static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 929{ 930 int err; 931 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 932 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 933 u64 reg_id; 934 struct mlx4_ib_steering *ib_steering = NULL; 935 936 if (mdev->dev->caps.steering_mode == 937 MLX4_STEERING_MODE_DEVICE_MANAGED) { 938 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); 939 if (!ib_steering) 940 return -ENOMEM; 941 } 942 943 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, 944 !!(mqp->flags & 945 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), 946 MLX4_PROT_IB_IPV6, ®_id); 947 if (err) 948 goto err_malloc; 949 950 err = add_gid_entry(ibqp, gid); 951 if (err) 952 goto err_add; 953 954 if (ib_steering) { 955 memcpy(ib_steering->gid.raw, gid->raw, 16); 956 ib_steering->reg_id = reg_id; 957 mutex_lock(&mqp->mutex); 958 list_add(&ib_steering->list, &mqp->steering_rules); 959 mutex_unlock(&mqp->mutex); 960 } 961 return 0; 962 963err_add: 964 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, 965 MLX4_PROT_IB_IPV6, reg_id); 966err_malloc: 967 kfree(ib_steering); 968 969 return err; 970} 971 972enum { 973 IBV_FLOW_L4_NONE = 0, 974 IBV_FLOW_L4_OTHER = 3, 975 IBV_FLOW_L4_UDP = 5, 976 IBV_FLOW_L4_TCP = 6 977}; 978 979struct mlx4_cm_steering { 980 struct list_head list; 981 u64 reg_id; 982 struct ib_flow_spec spec; 983}; 984 985static int flow_spec_to_net_rule(struct ib_device *dev, struct ib_flow_spec *flow_spec, 986 struct list_head *rule_list_h) 987{ 988 struct mlx4_spec_list *spec_l2, *spec_l3, *spec_l4; 989 u64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 990 991 spec_l2 = kzalloc(sizeof *spec_l2, GFP_KERNEL); 992 if (!spec_l2) 993 return -ENOMEM; 994 995 switch (flow_spec->type) { 996 case IB_FLOW_ETH: 997 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 998 memcpy(spec_l2->eth.dst_mac, flow_spec->l2_id.eth.mac, ETH_ALEN); 999 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 1000 spec_l2->eth.ether_type = flow_spec->l2_id.eth.ethertype; 1001 if (flow_spec->l2_id.eth.vlan_present) { 1002 spec_l2->eth.vlan_id = flow_spec->l2_id.eth.vlan; 1003 spec_l2->eth.vlan_id_msk = cpu_to_be16(0x0fff); 1004 } 1005 break; 1006 case IB_FLOW_IB_UC: 1007 spec_l2->id = MLX4_NET_TRANS_RULE_ID_IB; 1008 if(flow_spec->l2_id.ib_uc.qpn) { 1009 spec_l2->ib.r_u_qpn = cpu_to_be32(flow_spec->l2_id.ib_uc.qpn); 1010 spec_l2->ib.qpn_msk = cpu_to_be32(0xffffff); 1011 } 1012 break; 1013 case IB_FLOW_IB_MC_IPV4: 1014 case IB_FLOW_IB_MC_IPV6: 1015 spec_l2->id = MLX4_NET_TRANS_RULE_ID_IB; 1016 memcpy(spec_l2->ib.dst_gid, flow_spec->l2_id.ib_mc.mgid, 16); 1017 memset(spec_l2->ib.dst_gid_msk, 0xff, 16); 1018 break; 1019 } 1020 1021 1022 list_add_tail(&spec_l2->list, rule_list_h); 1023 1024 if (flow_spec->l2_id.eth.ethertype == cpu_to_be16(ETH_P_IP) || 1025 flow_spec->type != IB_FLOW_ETH) { 1026 spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL); 1027 if (!spec_l3) 1028 return -ENOMEM; 1029 1030 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1031 spec_l3->ipv4.src_ip = flow_spec->src_ip; 1032 if (flow_spec->type != IB_FLOW_IB_MC_IPV4 && 1033 flow_spec->type != IB_FLOW_IB_MC_IPV6) 1034 spec_l3->ipv4.dst_ip = flow_spec->dst_ip; 1035 1036 if (spec_l3->ipv4.src_ip) 1037 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK; 1038 if (spec_l3->ipv4.dst_ip) 1039 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK; 1040 1041 list_add_tail(&spec_l3->list, rule_list_h); 1042 } 1043 1044 if (flow_spec->l4_protocol) { 1045 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 1046 if (!spec_l4) 1047 return -ENOMEM; 1048 1049 spec_l4->tcp_udp.src_port = flow_spec->src_port; 1050 spec_l4->tcp_udp.dst_port = flow_spec->dst_port; 1051 if (spec_l4->tcp_udp.src_port) 1052 spec_l4->tcp_udp.src_port_msk = 1053 MLX4_BE_SHORT_MASK; 1054 if (spec_l4->tcp_udp.dst_port) 1055 spec_l4->tcp_udp.dst_port_msk = 1056 MLX4_BE_SHORT_MASK; 1057 1058 switch (flow_spec->l4_protocol) { 1059 case IBV_FLOW_L4_UDP: 1060 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 1061 break; 1062 case IBV_FLOW_L4_TCP: 1063 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 1064 break; 1065 default: 1066 dev_err(dev->dma_device, 1067 "Unsupported l4 protocol.\n"); 1068 kfree(spec_l4); 1069 return -EPROTONOSUPPORT; 1070 } 1071 list_add_tail(&spec_l4->list, rule_list_h); 1072 } 1073 return 0; 1074} 1075 1076static int __mlx4_ib_flow_attach(struct mlx4_ib_dev *mdev, 1077 struct mlx4_ib_qp *mqp, 1078 struct ib_flow_spec *flow_spec, 1079 int priority, int lock_qp) 1080{ 1081 u64 reg_id = 0; 1082 int err = 0; 1083 struct mlx4_cm_steering *cm_flow; 1084 struct mlx4_spec_list *spec, *tmp_spec; 1085 1086 struct mlx4_net_trans_rule rule = 1087 { .queue_mode = MLX4_NET_TRANS_Q_FIFO, 1088 .exclusive = 0, 1089 }; 1090 1091 rule.promisc_mode = flow_spec->rule_type; 1092 rule.port = mqp->port; 1093 rule.qpn = mqp->mqp.qpn; 1094 INIT_LIST_HEAD(&rule.list); 1095 1096 cm_flow = kmalloc(sizeof(*cm_flow), GFP_KERNEL); 1097 if (!cm_flow) 1098 return -ENOMEM; 1099 1100 if (rule.promisc_mode == MLX4_FS_REGULAR) { 1101 rule.allow_loopback = !flow_spec->block_mc_loopback; 1102 rule.priority = MLX4_DOMAIN_UVERBS | priority; 1103 err = flow_spec_to_net_rule(&mdev->ib_dev, flow_spec, 1104 &rule.list); 1105 if (err) 1106 goto free_list; 1107 } 1108 1109 err = mlx4_flow_attach(mdev->dev, &rule, ®_id); 1110 if (err) 1111 goto free_list; 1112 1113 memcpy(&cm_flow->spec, flow_spec, sizeof(*flow_spec)); 1114 cm_flow->reg_id = reg_id; 1115 1116 if (lock_qp) 1117 mutex_lock(&mqp->mutex); 1118 list_add(&cm_flow->list, &mqp->rules_list); 1119 if (lock_qp) 1120 mutex_unlock(&mqp->mutex); 1121 1122free_list: 1123 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 1124 list_del(&spec->list); 1125 kfree(spec); 1126 } 1127 if (err) { 1128 kfree(cm_flow); 1129 dev_err(mdev->ib_dev.dma_device, 1130 "Fail to attach flow steering rule\n"); 1131 } 1132 return err; 1133} 1134 1135static int __mlx4_ib_flow_detach(struct mlx4_ib_dev *mdev, 1136 struct mlx4_ib_qp *mqp, 1137 struct ib_flow_spec *spec, int priority, 1138 int lock_qp) 1139{ 1140 struct mlx4_cm_steering *cm_flow; 1141 int ret; 1142 1143 if (lock_qp) 1144 mutex_lock(&mqp->mutex); 1145 list_for_each_entry(cm_flow, &mqp->rules_list, list) { 1146 if (!memcmp(&cm_flow->spec, spec, sizeof(*spec))) { 1147 list_del(&cm_flow->list); 1148 break; 1149 } 1150 } 1151 if (lock_qp) 1152 mutex_unlock(&mqp->mutex); 1153 1154 if (&cm_flow->list == &mqp->rules_list) { 1155 dev_err(mdev->ib_dev.dma_device, "Couldn't find reg_id for flow spec. " 1156 "Steering rule is left attached\n"); 1157 return -EINVAL; 1158 } 1159 1160 ret = mlx4_flow_detach(mdev->dev, cm_flow->reg_id); 1161 1162 kfree(cm_flow); 1163 return ret; 1164} 1165 1166static int mlx4_ib_flow_attach(struct ib_qp *qp, struct ib_flow_spec *flow_spec, 1167 int priority) 1168{ 1169 return __mlx4_ib_flow_attach(to_mdev(qp->device), to_mqp(qp), 1170 flow_spec, priority, 1); 1171} 1172 1173static int mlx4_ib_flow_detach(struct ib_qp *qp, struct ib_flow_spec *spec, 1174 int priority) 1175{ 1176 return __mlx4_ib_flow_detach(to_mdev(qp->device), to_mqp(qp), 1177 spec, priority, 1); 1178} 1179 1180static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) 1181{ 1182 struct mlx4_ib_gid_entry *ge; 1183 struct mlx4_ib_gid_entry *tmp; 1184 struct mlx4_ib_gid_entry *ret = NULL; 1185 1186 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { 1187 if (!memcmp(raw, ge->gid.raw, 16)) { 1188 ret = ge; 1189 break; 1190 } 1191 } 1192 1193 return ret; 1194} 1195 1196static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 1197{ 1198 int err; 1199 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 1200 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 1201 u8 mac[6]; 1202 struct net_device *ndev; 1203 struct mlx4_ib_gid_entry *ge; 1204 u64 reg_id = 0; 1205 1206 if (mdev->dev->caps.steering_mode == 1207 MLX4_STEERING_MODE_DEVICE_MANAGED) { 1208 struct mlx4_ib_steering *ib_steering; 1209 1210 mutex_lock(&mqp->mutex); 1211 list_for_each_entry(ib_steering, &mqp->steering_rules, list) { 1212 if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { 1213 list_del(&ib_steering->list); 1214 break; 1215 } 1216 } 1217 mutex_unlock(&mqp->mutex); 1218 if (&ib_steering->list == &mqp->steering_rules) { 1219 pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); 1220 return -EINVAL; 1221 } 1222 reg_id = ib_steering->reg_id; 1223 kfree(ib_steering); 1224 } 1225 1226 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, 1227 MLX4_PROT_IB_IPV6, reg_id); 1228 if (err) 1229 return err; 1230 1231 mutex_lock(&mqp->mutex); 1232 ge = find_gid_entry(mqp, gid->raw); 1233 if (ge) { 1234 spin_lock(&mdev->iboe.lock); 1235 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; 1236 if (ndev) 1237 dev_hold(ndev); 1238 spin_unlock(&mdev->iboe.lock); 1239 rdma_get_mcast_mac((struct in6_addr *)gid, mac); 1240 if (ndev) { 1241 rtnl_lock(); 1242 dev_mc_delete(mdev->iboe.netdevs[ge->port - 1], mac, 6, 0); 1243 rtnl_unlock(); 1244 dev_put(ndev); 1245 } 1246 list_del(&ge->list); 1247 kfree(ge); 1248 } else 1249 pr_warn("could not find mgid entry\n"); 1250 1251 mutex_unlock(&mqp->mutex); 1252 1253 return 0; 1254} 1255 1256static int init_node_data(struct mlx4_ib_dev *dev) 1257{ 1258 struct ib_smp *in_mad = NULL; 1259 struct ib_smp *out_mad = NULL; 1260 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 1261 int err = -ENOMEM; 1262 1263 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1264 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1265 if (!in_mad || !out_mad) 1266 goto out; 1267 1268 init_query_mad(in_mad); 1269 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1270 if (mlx4_is_master(dev->dev)) 1271 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 1272 1273 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); 1274 if (err) 1275 goto out; 1276 1277 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1278 1279 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1280 1281 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); 1282 if (err) 1283 goto out; 1284 1285 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1286 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1287 1288out: 1289 kfree(in_mad); 1290 kfree(out_mad); 1291 return err; 1292} 1293 1294static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1295 char *buf) 1296{ 1297 struct mlx4_ib_dev *dev = 1298 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1299 return sprintf(buf, "MT%d\n", dev->dev->pdev->device); 1300} 1301 1302static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1303 char *buf) 1304{ 1305 struct mlx4_ib_dev *dev = 1306 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1307 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), 1308 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, 1309 (int) dev->dev->caps.fw_ver & 0xffff); 1310} 1311 1312static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1313 char *buf) 1314{ 1315 struct mlx4_ib_dev *dev = 1316 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1317 return sprintf(buf, "%x\n", dev->dev->rev_id); 1318} 1319 1320static ssize_t show_board(struct device *device, struct device_attribute *attr, 1321 char *buf) 1322{ 1323 struct mlx4_ib_dev *dev = 1324 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1325 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, 1326 dev->dev->board_id); 1327} 1328 1329static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1330static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1331static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1332static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1333 1334static struct device_attribute *mlx4_class_attributes[] = { 1335 &dev_attr_hw_rev, 1336 &dev_attr_fw_ver, 1337 &dev_attr_hca_type, 1338 &dev_attr_board_id 1339}; 1340 1341static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev) 1342{ 1343#ifdef __linux__ 1344 memcpy(eui, dev->dev_addr, 3); 1345 memcpy(eui + 5, dev->dev_addr + 3, 3); 1346#else 1347 memcpy(eui, IF_LLADDR(dev), 3); 1348 memcpy(eui + 5, IF_LLADDR(dev) + 3, 3); 1349#endif 1350 if (vlan_id < 0x1000) { 1351 eui[3] = vlan_id >> 8; 1352 eui[4] = vlan_id & 0xff; 1353 } else { 1354 eui[3] = 0xff; 1355 eui[4] = 0xfe; 1356 } 1357 eui[0] ^= 2; 1358} 1359 1360static void update_gids_task(struct work_struct *work) 1361{ 1362 struct update_gid_work *gw = container_of(work, struct update_gid_work, work); 1363 struct mlx4_cmd_mailbox *mailbox; 1364 union ib_gid *gids; 1365 int err; 1366 struct mlx4_dev *dev = gw->dev->dev; 1367 1368 mailbox = mlx4_alloc_cmd_mailbox(dev); 1369 if (IS_ERR(mailbox)) { 1370 pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); 1371 return; 1372 } 1373 1374 gids = mailbox->buf; 1375 memcpy(gids, gw->gids, sizeof gw->gids); 1376 1377 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, 1378 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, 1379 MLX4_CMD_WRAPPED); 1380 if (err) 1381 pr_warn("set port command failed\n"); 1382 else { 1383 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids); 1384 mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE); 1385 } 1386 1387 mlx4_free_cmd_mailbox(dev, mailbox); 1388 kfree(gw); 1389} 1390 1391static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear) 1392{ 1393 struct net_device *ndev = dev->iboe.netdevs[port - 1]; 1394 struct update_gid_work *work; 1395 struct net_device *tmp; 1396 int i; 1397 u8 *hits; 1398 union ib_gid gid; 1399 int index_free; 1400 int found; 1401 int need_update = 0; 1402 int max_gids; 1403 u16 vid; 1404 1405 work = kzalloc(sizeof *work, GFP_ATOMIC); 1406 if (!work) 1407 return -ENOMEM; 1408 1409 hits = kzalloc(128, GFP_ATOMIC); 1410 if (!hits) { 1411 kfree(work); 1412 return -ENOMEM; 1413 } 1414 1415 max_gids = dev->dev->caps.gid_table_len[port]; 1416 1417#ifdef __linux__ 1418 rcu_read_lock(); 1419 for_each_netdev_rcu(&init_net, tmp) { 1420#else 1421 IFNET_RLOCK(); 1422 TAILQ_FOREACH(tmp, &V_ifnet, if_link) { 1423#endif 1424 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) { 1425 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); 1426 vid = rdma_vlan_dev_vlan_id(tmp); 1427 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev); 1428 found = 0; 1429 index_free = -1; 1430 for (i = 0; i < max_gids; ++i) { 1431 if (index_free < 0 && 1432 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) 1433 index_free = i; 1434 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) { 1435 hits[i] = 1; 1436 found = 1; 1437 break; 1438 } 1439 } 1440 1441 if (!found) { 1442 if (tmp == ndev && 1443 (memcmp(&dev->iboe.gid_table[port - 1][0], 1444 &gid, sizeof gid) || 1445 !memcmp(&dev->iboe.gid_table[port - 1][0], 1446 &zgid, sizeof gid))) { 1447 dev->iboe.gid_table[port - 1][0] = gid; 1448 ++need_update; 1449 hits[0] = 1; 1450 } else if (index_free >= 0) { 1451 dev->iboe.gid_table[port - 1][index_free] = gid; 1452 hits[index_free] = 1; 1453 ++need_update; 1454 } 1455 } 1456 } 1457#ifdef __linux__ 1458 } 1459 rcu_read_unlock(); 1460#else 1461 } 1462 IFNET_RUNLOCK(); 1463#endif 1464 1465 for (i = 0; i < max_gids; ++i) 1466 if (!hits[i]) { 1467 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) 1468 ++need_update; 1469 dev->iboe.gid_table[port - 1][i] = zgid; 1470 } 1471 1472 if (need_update) { 1473 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids); 1474 INIT_WORK(&work->work, update_gids_task); 1475 work->port = port; 1476 work->dev = dev; 1477 queue_work(wq, &work->work); 1478 } else 1479 kfree(work); 1480 1481 kfree(hits); 1482 return 0; 1483} 1484 1485static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event) 1486{ 1487 switch (event) { 1488 case NETDEV_UP: 1489#ifdef __linux__ 1490 case NETDEV_CHANGEADDR: 1491#endif 1492 update_ipv6_gids(dev, port, 0); 1493 break; 1494 1495 case NETDEV_DOWN: 1496 update_ipv6_gids(dev, port, 1); 1497 dev->iboe.netdevs[port - 1] = NULL; 1498 } 1499} 1500 1501static void netdev_added(struct mlx4_ib_dev *dev, int port) 1502{ 1503 update_ipv6_gids(dev, port, 0); 1504} 1505 1506static void netdev_removed(struct mlx4_ib_dev *dev, int port) 1507{ 1508 update_ipv6_gids(dev, port, 1); 1509} 1510 1511static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event, 1512 void *ptr) 1513{ 1514 struct net_device *dev = ptr; 1515 struct mlx4_ib_dev *ibdev; 1516 struct net_device *oldnd; 1517 struct mlx4_ib_iboe *iboe; 1518 int port; 1519 1520#ifdef __linux__ 1521 if (!net_eq(dev_net(dev), &init_net)) 1522 return NOTIFY_DONE; 1523#endif 1524 1525 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); 1526 iboe = &ibdev->iboe; 1527 1528 spin_lock(&iboe->lock); 1529 mlx4_foreach_ib_transport_port(port, ibdev->dev) { 1530 oldnd = iboe->netdevs[port - 1]; 1531 iboe->netdevs[port - 1] = 1532 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); 1533 if (oldnd != iboe->netdevs[port - 1]) { 1534 if (iboe->netdevs[port - 1]) 1535 netdev_added(ibdev, port); 1536 else 1537 netdev_removed(ibdev, port); 1538 } 1539 } 1540 1541 if (dev == iboe->netdevs[0] || 1542 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0])) 1543 handle_en_event(ibdev, 1, event); 1544 else if (dev == iboe->netdevs[1] 1545 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1])) 1546 handle_en_event(ibdev, 2, event); 1547 1548 spin_unlock(&iboe->lock); 1549 1550 return NOTIFY_DONE; 1551} 1552 1553static void init_pkeys(struct mlx4_ib_dev *ibdev) 1554{ 1555 int port; 1556 int slave; 1557 int i; 1558 1559 if (mlx4_is_master(ibdev->dev)) { 1560 for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) { 1561 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { 1562 for (i = 0; 1563 i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; 1564 ++i) { 1565 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] = 1566 /* master has the identity virt2phys pkey mapping */ 1567 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i : 1568 ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1; 1569 mlx4_sync_pkey_table(ibdev->dev, slave, port, i, 1570 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]); 1571 } 1572 } 1573 } 1574 /* initialize pkey cache */ 1575 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { 1576 for (i = 0; 1577 i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; 1578 ++i) 1579 ibdev->pkeys.phys_pkey_cache[port-1][i] = 1580 (i) ? 0 : 0xFFFF; 1581 } 1582 } 1583} 1584 1585static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) 1586{ 1587 char name[32]; 1588 int eq_per_port = 0; 1589 int added_eqs = 0; 1590 int total_eqs = 0; 1591 int i, j, eq; 1592 1593 /* Legacy mode or comp_pool is not large enough */ 1594 if (dev->caps.comp_pool == 0 || 1595 dev->caps.num_ports > dev->caps.comp_pool) 1596 return; 1597 1598 eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/ 1599 dev->caps.num_ports); 1600 1601 /* Init eq table */ 1602 added_eqs = 0; 1603 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) 1604 added_eqs += eq_per_port; 1605 1606 total_eqs = dev->caps.num_comp_vectors + added_eqs; 1607 1608 ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL); 1609 if (!ibdev->eq_table) 1610 return; 1611 1612 ibdev->eq_added = added_eqs; 1613 1614 eq = 0; 1615 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) { 1616 for (j = 0; j < eq_per_port; j++) { 1617 //sprintf(name, "mlx4-ib-%d-%d@%s", 1618 // i, j, dev->pdev->bus->conf.pd_name); 1619 /* Set IRQ for specific name (per ring) */ 1620 if (mlx4_assign_eq(dev, name, 1621 &ibdev->eq_table[eq])) { 1622 /* Use legacy (same as mlx4_en driver) */ 1623 pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq); 1624 ibdev->eq_table[eq] = 1625 (eq % dev->caps.num_comp_vectors); 1626 } 1627 eq++; 1628 } 1629 } 1630 1631 /* Fill the reset of the vector with legacy EQ */ 1632 for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++) 1633 ibdev->eq_table[eq++] = i; 1634 1635 /* Advertise the new number of EQs to clients */ 1636 ibdev->ib_dev.num_comp_vectors = total_eqs; 1637} 1638 1639static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) 1640{ 1641 int i; 1642 1643 /* no additional eqs were added */ 1644 if (!ibdev->eq_table) 1645 return; 1646 1647 /* Reset the advertised EQ number */ 1648 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; 1649 1650 /* Free only the added eqs */ 1651 for (i = 0; i < ibdev->eq_added; i++) { 1652 /* Don't free legacy eqs if used */ 1653 if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors) 1654 continue; 1655 mlx4_release_eq(dev, ibdev->eq_table[i]); 1656 } 1657 1658 kfree(ibdev->eq_table); 1659} 1660 1661/* 1662 * create show function and a device_attribute struct pointing to 1663 * the function for _name 1664 */ 1665#define DEVICE_DIAG_RPRT_ATTR(_name, _offset, _op_mod) \ 1666static ssize_t show_rprt_##_name(struct device *dev, \ 1667 struct device_attribute *attr, \ 1668 char *buf){ \ 1669 return show_diag_rprt(dev, buf, _offset, _op_mod); \ 1670} \ 1671static DEVICE_ATTR(_name, S_IRUGO, show_rprt_##_name, NULL); 1672 1673#define MLX4_DIAG_RPRT_CLEAR_DIAGS 3 1674 1675static size_t show_diag_rprt(struct device *device, char *buf, 1676 u32 offset, u8 op_modifier) 1677{ 1678 size_t ret; 1679 u32 counter_offset = offset; 1680 u32 diag_counter = 0; 1681 struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, 1682 ib_dev.dev); 1683 1684 ret = mlx4_query_diag_counters(dev->dev, 1, op_modifier, 1685 &counter_offset, &diag_counter); 1686 if (ret) 1687 return ret; 1688 1689 return sprintf(buf, "%d\n", diag_counter); 1690} 1691 1692static ssize_t clear_diag_counters(struct device *device, 1693 struct device_attribute *attr, 1694 const char *buf, size_t length) 1695{ 1696 size_t ret; 1697 struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, 1698 ib_dev.dev); 1699 1700 ret = mlx4_query_diag_counters(dev->dev, 0, MLX4_DIAG_RPRT_CLEAR_DIAGS, 1701 NULL, NULL); 1702 if (ret) 1703 return ret; 1704 1705 return length; 1706} 1707 1708DEVICE_DIAG_RPRT_ATTR(rq_num_lle , 0x00, 2); 1709DEVICE_DIAG_RPRT_ATTR(sq_num_lle , 0x04, 2); 1710DEVICE_DIAG_RPRT_ATTR(rq_num_lqpoe , 0x08, 2); 1711DEVICE_DIAG_RPRT_ATTR(sq_num_lqpoe , 0x0C, 2); 1712DEVICE_DIAG_RPRT_ATTR(rq_num_lpe , 0x18, 2); 1713DEVICE_DIAG_RPRT_ATTR(sq_num_lpe , 0x1C, 2); 1714DEVICE_DIAG_RPRT_ATTR(rq_num_wrfe , 0x20, 2); 1715DEVICE_DIAG_RPRT_ATTR(sq_num_wrfe , 0x24, 2); 1716DEVICE_DIAG_RPRT_ATTR(sq_num_mwbe , 0x2C, 2); 1717DEVICE_DIAG_RPRT_ATTR(sq_num_bre , 0x34, 2); 1718DEVICE_DIAG_RPRT_ATTR(rq_num_lae , 0x38, 2); 1719DEVICE_DIAG_RPRT_ATTR(sq_num_rire , 0x44, 2); 1720DEVICE_DIAG_RPRT_ATTR(rq_num_rire , 0x48, 2); 1721DEVICE_DIAG_RPRT_ATTR(sq_num_rae , 0x4C, 2); 1722DEVICE_DIAG_RPRT_ATTR(rq_num_rae , 0x50, 2); 1723DEVICE_DIAG_RPRT_ATTR(sq_num_roe , 0x54, 2); 1724DEVICE_DIAG_RPRT_ATTR(sq_num_tree , 0x5C, 2); 1725DEVICE_DIAG_RPRT_ATTR(sq_num_rree , 0x64, 2); 1726DEVICE_DIAG_RPRT_ATTR(rq_num_rnr , 0x68, 2); 1727DEVICE_DIAG_RPRT_ATTR(sq_num_rnr , 0x6C, 2); 1728DEVICE_DIAG_RPRT_ATTR(rq_num_oos , 0x100, 2); 1729DEVICE_DIAG_RPRT_ATTR(sq_num_oos , 0x104, 2); 1730DEVICE_DIAG_RPRT_ATTR(rq_num_mce , 0x108, 2); 1731DEVICE_DIAG_RPRT_ATTR(rq_num_udsdprd , 0x118, 2); 1732DEVICE_DIAG_RPRT_ATTR(rq_num_ucsdprd , 0x120, 2); 1733DEVICE_DIAG_RPRT_ATTR(num_cqovf , 0x1A0, 2); 1734DEVICE_DIAG_RPRT_ATTR(num_eqovf , 0x1A4, 2); 1735DEVICE_DIAG_RPRT_ATTR(num_baddb , 0x1A8, 2); 1736 1737static DEVICE_ATTR(clear_diag, S_IWUSR, NULL, clear_diag_counters); 1738 1739static struct attribute *diag_rprt_attrs[] = { 1740 &dev_attr_rq_num_lle.attr, 1741 &dev_attr_sq_num_lle.attr, 1742 &dev_attr_rq_num_lqpoe.attr, 1743 &dev_attr_sq_num_lqpoe.attr, 1744 &dev_attr_rq_num_lpe.attr, 1745 &dev_attr_sq_num_lpe.attr, 1746 &dev_attr_rq_num_wrfe.attr, 1747 &dev_attr_sq_num_wrfe.attr, 1748 &dev_attr_sq_num_mwbe.attr, 1749 &dev_attr_sq_num_bre.attr, 1750 &dev_attr_rq_num_lae.attr, 1751 &dev_attr_sq_num_rire.attr, 1752 &dev_attr_rq_num_rire.attr, 1753 &dev_attr_sq_num_rae.attr, 1754 &dev_attr_rq_num_rae.attr, 1755 &dev_attr_sq_num_roe.attr, 1756 &dev_attr_sq_num_tree.attr, 1757 &dev_attr_sq_num_rree.attr, 1758 &dev_attr_rq_num_rnr.attr, 1759 &dev_attr_sq_num_rnr.attr, 1760 &dev_attr_rq_num_oos.attr, 1761 &dev_attr_sq_num_oos.attr, 1762 &dev_attr_rq_num_mce.attr, 1763 &dev_attr_rq_num_udsdprd.attr, 1764 &dev_attr_rq_num_ucsdprd.attr, 1765 &dev_attr_num_cqovf.attr, 1766 &dev_attr_num_eqovf.attr, 1767 &dev_attr_num_baddb.attr, 1768 &dev_attr_clear_diag.attr, 1769 NULL 1770}; 1771 1772static struct attribute_group diag_counters_group = { 1773 .name = "diag_counters", 1774 .attrs = diag_rprt_attrs 1775}; 1776 1777#ifdef __linux__ 1778static int mlx4_ib_proc_init(void) 1779{ 1780 /* Creating procfs directories /proc/drivers/mlx4_ib/ && 1781 /proc/drivers/mlx4_ib/mrs for further use by the driver. 1782 */ 1783 int err; 1784 1785 mlx4_ib_driver_dir_entry = proc_mkdir(MLX4_IB_DRIVER_PROC_DIR_NAME, 1786 NULL); 1787 if (!mlx4_ib_driver_dir_entry) { 1788 pr_err("mlx4_ib_proc_init has failed for %s\n", 1789 MLX4_IB_DRIVER_PROC_DIR_NAME); 1790 err = -ENODEV; 1791 goto error; 1792 } 1793 1794 mlx4_mrs_dir_entry = proc_mkdir(MLX4_IB_MRS_PROC_DIR_NAME, 1795 mlx4_ib_driver_dir_entry); 1796 if (!mlx4_mrs_dir_entry) { 1797 pr_err("mlx4_ib_proc_init has failed for %s\n", 1798 MLX4_IB_MRS_PROC_DIR_NAME); 1799 err = -ENODEV; 1800 goto remove_entry; 1801 } 1802 1803 return 0; 1804 1805remove_entry: 1806 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, 1807 NULL); 1808error: 1809 return err; 1810} 1811#endif 1812 1813static void init_dev_assign(void) 1814{ 1815 int bus, slot, fn, ib_idx; 1816 char *p = dev_assign_str, *t; 1817 char curr_val[32] = {0}; 1818 int ret; 1819 int j, i = 0; 1820 1821 memset(dr, 0, sizeof dr); 1822 1823 if (dev_assign_str[0] == 0) 1824 return; 1825 1826 while (strlen(p)) { 1827 ret = sscanf(p, "%02x:%02x.%x-%x", &bus, &slot, &fn, &ib_idx); 1828 if (ret != 4 || ib_idx < 0) 1829 goto err; 1830 1831 for (j = 0; j < i; j++) 1832 if (dr[j].nr == ib_idx) 1833 goto err; 1834 1835 dr[i].bus = bus; 1836 dr[i].dev = slot; 1837 dr[i].func = fn; 1838 dr[i].nr = ib_idx; 1839 1840 t = strchr(p, ','); 1841 sprintf(curr_val, "%02x:%02x.%x-%x", bus, slot, fn, ib_idx); 1842 if ((!t) && strlen(p) == strlen(curr_val)) 1843 return; 1844 1845 if (!t || (t + 1) >= dev_assign_str + sizeof dev_assign_str) 1846 goto err; 1847 1848 ++i; 1849 if (i >= MAX_DR) 1850 goto err; 1851 1852 p = t + 1; 1853 } 1854 1855 return; 1856err: 1857 memset(dr, 0, sizeof dr); 1858 printk(KERN_WARNING "mlx4_ib: The value of 'dev_assign_str' parameter " 1859 "is incorrect. The parameter value is discarded!"); 1860} 1861 1862static int mlx4_ib_dev_idx(struct mlx4_dev *dev) 1863{ 1864 int /*bus,*/ slot, fn; 1865 int i; 1866 1867 if (!dev) 1868 return -1; 1869 else if (!dev->pdev) 1870 return -1; 1871 //else if (!dev->pdev->bus) 1872 // return -1; 1873 1874 //bus = dev->pdev->bus->conf.pc_sel.pc_bus; 1875 slot = PCI_SLOT(dev->pdev->devfn); 1876 fn = PCI_FUNC(dev->pdev->devfn); 1877 1878 for (i = 0; i < MAX_DR; ++i) { 1879 if (/*dr[i].bus == bus &&*/ 1880 dr[i].dev == slot && 1881 dr[i].func == fn) { 1882 return dr[i].nr; 1883 } 1884 } 1885 1886 return -1; 1887} 1888 1889static void *mlx4_ib_add(struct mlx4_dev *dev) 1890{ 1891 struct mlx4_ib_dev *ibdev; 1892 int num_ports = 0; 1893 int i, j; 1894 int err; 1895 struct mlx4_ib_iboe *iboe; 1896 int dev_idx; 1897 1898 printk(KERN_INFO "%s", mlx4_ib_version); 1899 1900 mlx4_foreach_ib_transport_port(i, dev) 1901 num_ports++; 1902 1903 /* No point in registering a device with no ports... */ 1904 if (num_ports == 0) 1905 return NULL; 1906 1907 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); 1908 if (!ibdev) { 1909 dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); 1910 return NULL; 1911 } 1912 1913 iboe = &ibdev->iboe; 1914 1915 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) 1916 goto err_dealloc; 1917 1918 if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) 1919 goto err_pd; 1920 1921 ibdev->priv_uar.map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, 1922 PAGE_SIZE); 1923 1924 if (!ibdev->priv_uar.map) 1925 goto err_uar; 1926 1927 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); 1928 1929 ibdev->dev = dev; 1930 1931 dev_idx = mlx4_ib_dev_idx(dev); 1932 if (dev_idx >= 0) 1933 sprintf(ibdev->ib_dev.name, "mlx4_%d", dev_idx); 1934 else 1935 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); 1936 1937 ibdev->ib_dev.owner = THIS_MODULE; 1938 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; 1939 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; 1940 ibdev->num_ports = num_ports; 1941 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; 1942 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; 1943 ibdev->ib_dev.dma_device = &dev->pdev->dev; 1944 1945 if (dev->caps.userspace_caps) 1946 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; 1947 else 1948 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; 1949 1950 ibdev->ib_dev.uverbs_cmd_mask = 1951 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1952 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1953 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1954 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1955 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1956 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1957 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1958 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1959 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1960 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1961 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1962 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1963 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1964 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1965 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1966 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1967 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | 1968 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1969 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1970 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1971 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | 1972 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | 1973 (1ull << IB_USER_VERBS_CMD_OPEN_QP) | 1974 (1ull << IB_USER_VERBS_CMD_ATTACH_FLOW) | 1975 (1ull << IB_USER_VERBS_CMD_DETACH_FLOW) | 1976 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1977 1978 ibdev->ib_dev.query_device = mlx4_ib_query_device; 1979 ibdev->ib_dev.query_port = mlx4_ib_query_port; 1980 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer; 1981 ibdev->ib_dev.query_gid = mlx4_ib_query_gid; 1982 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; 1983 ibdev->ib_dev.modify_device = mlx4_ib_modify_device; 1984 ibdev->ib_dev.modify_port = mlx4_ib_modify_port; 1985 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; 1986 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; 1987#ifdef __linux__ 1988 ibdev->ib_dev.mmap = mlx4_ib_mmap; 1989 ibdev->ib_dev.get_unmapped_area = mlx4_ib_get_unmapped_area; 1990#endif 1991 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; 1992 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; 1993 ibdev->ib_dev.create_ah = mlx4_ib_create_ah; 1994 ibdev->ib_dev.query_ah = mlx4_ib_query_ah; 1995 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; 1996 ibdev->ib_dev.create_srq = mlx4_ib_create_srq; 1997 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; 1998 ibdev->ib_dev.query_srq = mlx4_ib_query_srq; 1999 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; 2000 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; 2001 ibdev->ib_dev.create_qp = mlx4_ib_create_qp; 2002 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; 2003 ibdev->ib_dev.query_qp = mlx4_ib_query_qp; 2004 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; 2005 ibdev->ib_dev.post_send = mlx4_ib_post_send; 2006 ibdev->ib_dev.post_recv = mlx4_ib_post_recv; 2007 ibdev->ib_dev.create_cq = mlx4_ib_create_cq; 2008 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; 2009 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; 2010 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; 2011 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; 2012 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; 2013 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; 2014 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; 2015 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; 2016 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; 2017 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; 2018 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; 2019 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; 2020 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; 2021 ibdev->ib_dev.attach_flow = mlx4_ib_flow_attach; 2022 ibdev->ib_dev.detach_flow = mlx4_ib_flow_detach; 2023 ibdev->ib_dev.process_mad = mlx4_ib_process_mad; 2024 2025 if (!mlx4_is_slave(ibdev->dev)) { 2026 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; 2027 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; 2028 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; 2029 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; 2030 } 2031 2032 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { 2033 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd; 2034 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd; 2035 ibdev->ib_dev.uverbs_cmd_mask |= 2036 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | 2037 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); 2038 } 2039 2040 mlx4_ib_alloc_eqs(dev, ibdev); 2041 2042 spin_lock_init(&iboe->lock); 2043 2044 if (init_node_data(ibdev)) 2045 goto err_map; 2046 2047 for (i = 0; i < ibdev->num_ports; ++i) { 2048 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == 2049 IB_LINK_LAYER_ETHERNET) { 2050 err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]); 2051 if (err) 2052 ibdev->counters[i] = -1; 2053 } else 2054 ibdev->counters[i] = -1; 2055 } 2056 2057 spin_lock_init(&ibdev->sm_lock); 2058 mutex_init(&ibdev->cap_mask_mutex); 2059 2060 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && 2061 !mlx4_is_slave(dev)) { 2062 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS; 2063 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count, 2064 MLX4_IB_UC_STEER_QPN_ALIGN, &ibdev->steer_qpn_base, 0); 2065 if (err) 2066 goto err_counter; 2067 2068 ibdev->ib_uc_qpns_bitmap = 2069 kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) * 2070 sizeof(long), 2071 GFP_KERNEL); 2072 if (!ibdev->ib_uc_qpns_bitmap) { 2073 dev_err(&dev->pdev->dev, "bit map alloc failed\n"); 2074 goto err_steer_qp_release; 2075 } 2076 2077 bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count); 2078 2079 err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(dev, ibdev->steer_qpn_base, 2080 ibdev->steer_qpn_base + ibdev->steer_qpn_count - 1); 2081 if (err) 2082 goto err_steer_free_bitmap; 2083 } 2084 2085 if (ib_register_device(&ibdev->ib_dev, NULL)) 2086 goto err_steer_free_bitmap; 2087 2088 if (mlx4_ib_mad_init(ibdev)) 2089 goto err_reg; 2090 2091 if (mlx4_ib_init_sriov(ibdev)) 2092 goto err_mad; 2093 2094 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) { 2095 iboe->nb.notifier_call = mlx4_ib_netdev_event; 2096 err = register_netdevice_notifier(&iboe->nb); 2097 if (err) 2098 goto err_sriov; 2099 } 2100 2101 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { 2102 if (device_create_file(&ibdev->ib_dev.dev, 2103 mlx4_class_attributes[j])) 2104 goto err_notif; 2105 } 2106 if (sysfs_create_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group)) 2107 goto err_notif; 2108 2109 ibdev->ib_active = true; 2110 2111 if (mlx4_is_mfunc(ibdev->dev)) 2112 init_pkeys(ibdev); 2113 2114 /* create paravirt contexts for any VFs which are active */ 2115 if (mlx4_is_master(ibdev->dev)) { 2116 for (j = 0; j < MLX4_MFUNC_MAX; j++) { 2117 if (j == mlx4_master_func_num(ibdev->dev)) 2118 continue; 2119 if (mlx4_is_slave_active(ibdev->dev, j)) 2120 do_slave_init(ibdev, j, 1); 2121 } 2122 } 2123 return ibdev; 2124 2125err_notif: 2126 if (unregister_netdevice_notifier(&ibdev->iboe.nb)) 2127 pr_warn("failure unregistering notifier\n"); 2128 flush_workqueue(wq); 2129 2130err_sriov: 2131 mlx4_ib_close_sriov(ibdev); 2132 2133err_mad: 2134 mlx4_ib_mad_cleanup(ibdev); 2135 2136err_reg: 2137 ib_unregister_device(&ibdev->ib_dev); 2138 2139err_steer_free_bitmap: 2140 kfree(ibdev->ib_uc_qpns_bitmap); 2141 2142err_steer_qp_release: 2143 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) 2144 mlx4_qp_release_range(dev, ibdev->steer_qpn_base, 2145 ibdev->steer_qpn_count); 2146err_counter: 2147 for (; i; --i) 2148 if (ibdev->counters[i - 1] != -1) 2149 mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]); 2150 2151err_map: 2152 iounmap(ibdev->priv_uar.map); 2153 mlx4_ib_free_eqs(dev, ibdev); 2154 2155err_uar: 2156 mlx4_uar_free(dev, &ibdev->priv_uar); 2157 2158err_pd: 2159 mlx4_pd_free(dev, ibdev->priv_pdn); 2160 2161err_dealloc: 2162 ib_dealloc_device(&ibdev->ib_dev); 2163 2164 return NULL; 2165} 2166 2167int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) 2168{ 2169 int offset; 2170 2171 WARN_ON(!dev->ib_uc_qpns_bitmap); 2172 2173 offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap, 2174 dev->steer_qpn_count, 2175 get_count_order(count)); 2176 if (offset < 0) 2177 return offset; 2178 2179 *qpn = dev->steer_qpn_base + offset; 2180 return 0; 2181} 2182 2183void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count) 2184{ 2185 if (!qpn || 2186 dev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) 2187 return; 2188 2189 BUG_ON(qpn < dev->steer_qpn_base); 2190 2191 bitmap_release_region(dev->ib_uc_qpns_bitmap, 2192 qpn - dev->steer_qpn_base, get_count_order(count)); 2193} 2194 2195int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 2196 int is_attach) 2197{ 2198 struct ib_flow_spec spec = { 2199 .type = IB_FLOW_IB_UC, 2200 .l2_id.ib_uc.qpn = mqp->ibqp.qp_num, 2201 }; 2202 2203 return is_attach ? 2204 __mlx4_ib_flow_attach(mdev, mqp, &spec, MLX4_DOMAIN_NIC, 0) 2205 : __mlx4_ib_flow_detach(mdev, mqp, &spec, MLX4_DOMAIN_NIC, 0); 2206} 2207 2208static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) 2209{ 2210 struct mlx4_ib_dev *ibdev = ibdev_ptr; 2211 int p,j; 2212 2213 mlx4_ib_close_sriov(ibdev); 2214 sysfs_remove_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group); 2215 mlx4_ib_mad_cleanup(ibdev); 2216 2217 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { 2218 device_remove_file(&ibdev->ib_dev.dev, mlx4_class_attributes[j]); 2219 } 2220 2221 ib_unregister_device(&ibdev->ib_dev); 2222 2223 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { 2224 mlx4_qp_release_range(dev, ibdev->steer_qpn_base, 2225 ibdev->steer_qpn_count); 2226 kfree(ibdev->ib_uc_qpns_bitmap); 2227 } 2228 2229 if (ibdev->iboe.nb.notifier_call) { 2230 if (unregister_netdevice_notifier(&ibdev->iboe.nb)) 2231 pr_warn("failure unregistering notifier\n"); 2232 ibdev->iboe.nb.notifier_call = NULL; 2233 } 2234 iounmap(ibdev->priv_uar.map); 2235 for (p = 0; p < ibdev->num_ports; ++p) 2236 if (ibdev->counters[p] != -1) 2237 mlx4_counter_free(ibdev->dev, ibdev->counters[p]); 2238 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) 2239 mlx4_CLOSE_PORT(dev, p); 2240 2241 mlx4_ib_free_eqs(dev, ibdev); 2242 2243 mlx4_uar_free(dev, &ibdev->priv_uar); 2244 mlx4_pd_free(dev, ibdev->priv_pdn); 2245 ib_dealloc_device(&ibdev->ib_dev); 2246} 2247 2248static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init) 2249{ 2250 struct mlx4_ib_demux_work **dm = NULL; 2251 struct mlx4_dev *dev = ibdev->dev; 2252 int i; 2253 unsigned long flags; 2254 2255 if (!mlx4_is_master(dev)) 2256 return; 2257 2258 dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC); 2259 if (!dm) { 2260 pr_err("failed to allocate memory for tunneling qp update\n"); 2261 goto out; 2262 } 2263 2264 for (i = 0; i < dev->caps.num_ports; i++) { 2265 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); 2266 if (!dm[i]) { 2267 pr_err("failed to allocate memory for tunneling qp update work struct\n"); 2268 for (i = 0; i < dev->caps.num_ports; i++) { 2269 if (dm[i]) 2270 kfree(dm[i]); 2271 } 2272 goto out; 2273 } 2274 } 2275 /* initialize or tear down tunnel QPs for the slave */ 2276 for (i = 0; i < dev->caps.num_ports; i++) { 2277 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); 2278 dm[i]->port = i + 1; 2279 dm[i]->slave = slave; 2280 dm[i]->do_init = do_init; 2281 dm[i]->dev = ibdev; 2282 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); 2283 if (!ibdev->sriov.is_going_down) 2284 queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work); 2285 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); 2286 } 2287out: 2288 if (dm) 2289 kfree(dm); 2290 return; 2291} 2292 2293static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, 2294 enum mlx4_dev_event event, unsigned long param) 2295{ 2296 struct ib_event ibev; 2297 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); 2298 struct mlx4_eqe *eqe = NULL; 2299 struct ib_event_work *ew; 2300 int p = 0; 2301 2302 if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) 2303 eqe = (struct mlx4_eqe *)param; 2304 else 2305 p = (int) param; 2306 2307 switch (event) { 2308 case MLX4_DEV_EVENT_PORT_UP: 2309 if (p > ibdev->num_ports) 2310 return; 2311 if (mlx4_is_master(dev) && 2312 rdma_port_get_link_layer(&ibdev->ib_dev, p) == 2313 IB_LINK_LAYER_INFINIBAND) { 2314 mlx4_ib_invalidate_all_guid_record(ibdev, p); 2315 } 2316 mlx4_ib_info((struct ib_device *) ibdev_ptr, 2317 "Port %d logical link is up\n", p); 2318 ibev.event = IB_EVENT_PORT_ACTIVE; 2319 break; 2320 2321 case MLX4_DEV_EVENT_PORT_DOWN: 2322 if (p > ibdev->num_ports) 2323 return; 2324 mlx4_ib_info((struct ib_device *) ibdev_ptr, 2325 "Port %d logical link is down\n", p); 2326 ibev.event = IB_EVENT_PORT_ERR; 2327 break; 2328 2329 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: 2330 ibdev->ib_active = false; 2331 ibev.event = IB_EVENT_DEVICE_FATAL; 2332 break; 2333 2334 case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: 2335 ew = kmalloc(sizeof *ew, GFP_ATOMIC); 2336 if (!ew) { 2337 pr_err("failed to allocate memory for events work\n"); 2338 break; 2339 } 2340 2341 INIT_WORK(&ew->work, handle_port_mgmt_change_event); 2342 memcpy(&ew->ib_eqe, eqe, sizeof *eqe); 2343 ew->ib_dev = ibdev; 2344 /* need to queue only for port owner, which uses GEN_EQE */ 2345 if (mlx4_is_master(dev)) 2346 queue_work(wq, &ew->work); 2347 else 2348 handle_port_mgmt_change_event(&ew->work); 2349 return; 2350 2351 case MLX4_DEV_EVENT_SLAVE_INIT: 2352 /* here, p is the slave id */ 2353 do_slave_init(ibdev, p, 1); 2354 return; 2355 2356 case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: 2357 /* here, p is the slave id */ 2358 do_slave_init(ibdev, p, 0); 2359 return; 2360 2361 default: 2362 return; 2363 } 2364 2365 ibev.device = ibdev_ptr; 2366 ibev.element.port_num = (u8) p; 2367 2368 ib_dispatch_event(&ibev); 2369} 2370 2371static struct mlx4_interface mlx4_ib_interface = { 2372 .add = mlx4_ib_add, 2373 .remove = mlx4_ib_remove, 2374 .event = mlx4_ib_event, 2375 .protocol = MLX4_PROT_IB_IPV6 2376}; 2377 2378static int __init mlx4_ib_init(void) 2379{ 2380 int err; 2381 2382 wq = create_singlethread_workqueue("mlx4_ib"); 2383 if (!wq) 2384 return -ENOMEM; 2385 2386#ifdef __linux__ 2387 err = mlx4_ib_proc_init(); 2388 if (err) 2389 goto clean_wq; 2390#endif 2391 2392 err = mlx4_ib_mcg_init(); 2393 if (err) 2394 goto clean_proc; 2395 2396 init_dev_assign(); 2397 2398 err = mlx4_register_interface(&mlx4_ib_interface); 2399 if (err) 2400 goto clean_mcg; 2401 2402 return 0; 2403 2404clean_mcg: 2405 mlx4_ib_mcg_destroy(); 2406 2407clean_proc: 2408#ifdef __linux__ 2409 remove_proc_entry(MLX4_IB_MRS_PROC_DIR_NAME, 2410 mlx4_ib_driver_dir_entry); 2411 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, NULL); 2412 2413clean_wq: 2414#endif 2415 destroy_workqueue(wq); 2416 return err; 2417} 2418 2419static void __exit mlx4_ib_cleanup(void) 2420{ 2421 mlx4_unregister_interface(&mlx4_ib_interface); 2422 mlx4_ib_mcg_destroy(); 2423 destroy_workqueue(wq); 2424 2425 /* Remove proc entries */ 2426#ifdef __linux__ 2427 remove_proc_entry(MLX4_IB_MRS_PROC_DIR_NAME, 2428 mlx4_ib_driver_dir_entry); 2429 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, NULL); 2430#endif 2431 2432} 2433 2434module_init(mlx4_ib_init); 2435module_exit(mlx4_ib_cleanup); 2436 2437#undef MODULE_VERSION 2438#include <sys/module.h> 2439static int 2440mlx4ib_evhand(module_t mod, int event, void *arg) 2441{ 2442 return (0); 2443} 2444 2445static moduledata_t mlx4ib_mod = { 2446 .name = "mlx4ib", 2447 .evhand = mlx4ib_evhand, 2448}; 2449 2450DECLARE_MODULE(mlx4ib, mlx4ib_mod, SI_SUB_SMP, SI_ORDER_ANY); 2451MODULE_DEPEND(mlx4ib, mlx4, 1, 1, 1); 2452MODULE_DEPEND(mlx4ib, ibcore, 1, 1, 1); 2453