main.c revision 272407
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/slab.h> 41#include <linux/errno.h> 42#include <linux/netdevice.h> 43#include <linux/inetdevice.h> 44#include <linux/if_vlan.h> 45#include <linux/bitops.h> 46#include <linux/if_ether.h> 47#include <linux/fs.h> 48 49#include <rdma/ib_smi.h> 50#include <rdma/ib_user_verbs.h> 51#include <rdma/ib_addr.h> 52 53#include <linux/mlx4/driver.h> 54#include <linux/mlx4/cmd.h> 55#include <linux/sched.h> 56#include "mlx4_ib.h" 57#include "user.h" 58#include "wc.h" 59 60#define DRV_NAME MLX4_IB_DRV_NAME 61#define DRV_VERSION "1.0" 62#define DRV_RELDATE "April 4, 2008" 63 64#define MLX4_IB_DRIVER_PROC_DIR_NAME "driver/mlx4_ib" 65#define MLX4_IB_MRS_PROC_DIR_NAME "mrs" 66 67MODULE_AUTHOR("Roland Dreier"); 68MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); 69MODULE_LICENSE("Dual BSD/GPL"); 70MODULE_VERSION(DRV_VERSION); 71 72int mlx4_ib_sm_guid_assign = 1; 73 74#ifdef __linux__ 75struct proc_dir_entry *mlx4_mrs_dir_entry; 76static struct proc_dir_entry *mlx4_ib_driver_dir_entry; 77#endif 78 79module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444); 80MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)"); 81 82static char dev_assign_str[512]; 83//module_param_string(dev_assign_str, dev_assign_str, sizeof(dev_assign_str), 0644); 84MODULE_PARM_DESC(dev_assign_str, "Map all device function numbers to " 85 "IB device numbers following the pattern: " 86 "bb:dd.f-0,bb:dd.f-1,... (all numbers are hexadecimals)." 87 " Max supported devices - 32"); 88 89static const char mlx4_ib_version[] = 90 DRV_NAME ": Mellanox ConnectX InfiniBand driver v" 91 DRV_VERSION " (" DRV_RELDATE ")\n"; 92 93struct update_gid_work { 94 struct work_struct work; 95 union ib_gid gids[128]; 96 struct mlx4_ib_dev *dev; 97 int port; 98}; 99 100struct dev_rec { 101 int bus; 102 int dev; 103 int func; 104 int nr; 105}; 106 107#define MAX_DR 32 108static struct dev_rec dr[MAX_DR]; 109 110static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init); 111 112static struct workqueue_struct *wq; 113 114static void init_query_mad(struct ib_smp *mad) 115{ 116 mad->base_version = 1; 117 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 118 mad->class_version = 1; 119 mad->method = IB_MGMT_METHOD_GET; 120} 121 122static union ib_gid zgid; 123 124static int mlx4_ib_query_device(struct ib_device *ibdev, 125 struct ib_device_attr *props) 126{ 127 struct mlx4_ib_dev *dev = to_mdev(ibdev); 128 struct ib_smp *in_mad = NULL; 129 struct ib_smp *out_mad = NULL; 130 int err = -ENOMEM; 131 132 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 133 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 134 if (!in_mad || !out_mad) 135 goto out; 136 137 init_query_mad(in_mad); 138 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 139 140 err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS, 141 1, NULL, NULL, in_mad, out_mad); 142 if (err) 143 goto out; 144 145 memset(props, 0, sizeof *props); 146 147 props->fw_ver = dev->dev->caps.fw_ver; 148 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 149 IB_DEVICE_PORT_ACTIVE_EVENT | 150 IB_DEVICE_SYS_IMAGE_GUID | 151 IB_DEVICE_RC_RNR_NAK_GEN | 152 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK | 153 IB_DEVICE_SHARED_MR; 154 155 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) 156 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 157 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) 158 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 159 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) 160 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 161 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) 162 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 163 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) 164 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 165 if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH) 166 props->device_cap_flags |= IB_DEVICE_UD_TSO; 167 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) 168 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; 169 if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && 170 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && 171 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) 172 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 173 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) 174 props->device_cap_flags |= IB_DEVICE_XRC; 175 176 props->device_cap_flags |= IB_DEVICE_QPG; 177 if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) { 178 props->device_cap_flags |= IB_DEVICE_UD_RSS; 179 props->max_rss_tbl_sz = dev->dev->caps.max_rss_tbl_sz; 180 } 181 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 182 0xffffff; 183 props->vendor_part_id = dev->dev->pdev->device; 184 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 185 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 186 187 props->max_mr_size = ~0ull; 188 props->page_size_cap = dev->dev->caps.page_size_cap; 189 props->max_qp = dev->dev->quotas.qp; 190 props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE; 191 props->max_sge = min(dev->dev->caps.max_sq_sg, 192 dev->dev->caps.max_rq_sg); 193 props->max_cq = dev->dev->quotas.cq; 194 props->max_cqe = dev->dev->caps.max_cqes; 195 props->max_mr = dev->dev->quotas.mpt; 196 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; 197 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; 198 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; 199 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 200 props->max_srq = dev->dev->quotas.srq; 201 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; 202 props->max_srq_sge = dev->dev->caps.max_srq_sge; 203 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES; 204 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; 205 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? 206 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 207 props->masked_atomic_cap = props->atomic_cap; 208 props->max_pkeys = dev->dev->caps.pkey_table_len[1]; 209 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; 210 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; 211 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 212 props->max_mcast_grp; 213 props->max_map_per_fmr = dev->dev->caps.max_fmr_maps; 214 215out: 216 kfree(in_mad); 217 kfree(out_mad); 218 219 return err; 220} 221 222static enum rdma_link_layer 223mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num) 224{ 225 struct mlx4_dev *dev = to_mdev(device)->dev; 226 227 return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ? 228 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; 229} 230 231static int ib_link_query_port(struct ib_device *ibdev, u8 port, 232 struct ib_port_attr *props, int netw_view) 233{ 234 struct ib_smp *in_mad = NULL; 235 struct ib_smp *out_mad = NULL; 236 int ext_active_speed; 237 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 238 int err = -ENOMEM; 239 240 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 241 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 242 if (!in_mad || !out_mad) 243 goto out; 244 245 init_query_mad(in_mad); 246 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 247 in_mad->attr_mod = cpu_to_be32(port); 248 249 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) 250 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 251 252 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, 253 in_mad, out_mad); 254 if (err) 255 goto out; 256 257 258 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 259 props->lmc = out_mad->data[34] & 0x7; 260 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 261 props->sm_sl = out_mad->data[36] & 0xf; 262 props->state = out_mad->data[32] & 0xf; 263 props->phys_state = out_mad->data[33] >> 4; 264 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 265 if (netw_view) 266 props->gid_tbl_len = out_mad->data[50]; 267 else 268 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; 269 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; 270 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; 271 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 272 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 273 props->active_width = out_mad->data[31] & 0xf; 274 props->active_speed = out_mad->data[35] >> 4; 275 props->max_mtu = out_mad->data[41] & 0xf; 276 props->active_mtu = out_mad->data[36] >> 4; 277 props->subnet_timeout = out_mad->data[51] & 0x1f; 278 props->max_vl_num = out_mad->data[37] >> 4; 279 props->init_type_reply = out_mad->data[41] >> 4; 280 281 /* Check if extended speeds (EDR/FDR/...) are supported */ 282 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 283 ext_active_speed = out_mad->data[62] >> 4; 284 285 switch (ext_active_speed) { 286 case 1: 287 props->active_speed = IB_SPEED_FDR; 288 break; 289 case 2: 290 props->active_speed = IB_SPEED_EDR; 291 break; 292 } 293 } 294 295 /* If reported active speed is QDR, check if is FDR-10 */ 296 if (props->active_speed == IB_SPEED_QDR) { 297 init_query_mad(in_mad); 298 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO; 299 in_mad->attr_mod = cpu_to_be32(port); 300 301 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, 302 NULL, NULL, in_mad, out_mad); 303 if (err) 304 goto out; 305 306 /* Checking LinkSpeedActive for FDR-10 */ 307 if (out_mad->data[15] & 0x1) 308 props->active_speed = IB_SPEED_FDR10; 309 } 310 311 /* Avoid wrong speed value returned by FW if the IB link is down. */ 312 if (props->state == IB_PORT_DOWN) 313 props->active_speed = IB_SPEED_SDR; 314 315out: 316 kfree(in_mad); 317 kfree(out_mad); 318 return err; 319} 320 321static u8 state_to_phys_state(enum ib_port_state state) 322{ 323 return state == IB_PORT_ACTIVE ? 5 : 3; 324} 325 326static int eth_link_query_port(struct ib_device *ibdev, u8 port, 327 struct ib_port_attr *props, int netw_view) 328{ 329 330 struct mlx4_ib_dev *mdev = to_mdev(ibdev); 331 struct mlx4_ib_iboe *iboe = &mdev->iboe; 332 struct net_device *ndev; 333 enum ib_mtu tmp; 334 struct mlx4_cmd_mailbox *mailbox; 335 int err = 0; 336 337 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); 338 if (IS_ERR(mailbox)) 339 return PTR_ERR(mailbox); 340 341 err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0, 342 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B, 343 MLX4_CMD_WRAPPED); 344 if (err) 345 goto out; 346 347 props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ? 348 IB_WIDTH_4X : IB_WIDTH_1X; 349 props->active_speed = IB_SPEED_QDR; 350 props->port_cap_flags = IB_PORT_CM_SUP; 351 if (netw_view) 352 props->gid_tbl_len = MLX4_ROCE_MAX_GIDS; 353 else 354 props->gid_tbl_len = mdev->dev->caps.gid_table_len[port]; 355 356 props->max_msg_sz = mdev->dev->caps.max_msg_sz; 357 props->pkey_tbl_len = 1; 358 props->max_mtu = IB_MTU_4096; 359 props->max_vl_num = 2; 360 props->state = IB_PORT_DOWN; 361 props->phys_state = state_to_phys_state(props->state); 362 props->active_mtu = IB_MTU_256; 363 spin_lock(&iboe->lock); 364 ndev = iboe->netdevs[port - 1]; 365 if (!ndev) 366 goto out_unlock; 367 368 tmp = iboe_get_mtu(ndev->if_mtu); 369 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256; 370 371 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ? 372 IB_PORT_ACTIVE : IB_PORT_DOWN; 373 props->phys_state = state_to_phys_state(props->state); 374out_unlock: 375 spin_unlock(&iboe->lock); 376out: 377 mlx4_free_cmd_mailbox(mdev->dev, mailbox); 378 return err; 379} 380 381int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 382 struct ib_port_attr *props, int netw_view) 383{ 384 int err; 385 386 memset(props, 0, sizeof *props); 387 388 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ? 389 ib_link_query_port(ibdev, port, props, netw_view) : 390 eth_link_query_port(ibdev, port, props, netw_view); 391 392 return err; 393} 394 395static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 396 struct ib_port_attr *props) 397{ 398 /* returns host view */ 399 return __mlx4_ib_query_port(ibdev, port, props, 0); 400} 401 402int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 403 union ib_gid *gid, int netw_view) 404{ 405 struct ib_smp *in_mad = NULL; 406 struct ib_smp *out_mad = NULL; 407 int err = -ENOMEM; 408 struct mlx4_ib_dev *dev = to_mdev(ibdev); 409 int clear = 0; 410 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 411 412 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 413 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 414 if (!in_mad || !out_mad) 415 goto out; 416 417 init_query_mad(in_mad); 418 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 419 in_mad->attr_mod = cpu_to_be32(port); 420 421 if (mlx4_is_mfunc(dev->dev) && netw_view) 422 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 423 424 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad); 425 if (err) 426 goto out; 427 428 memcpy(gid->raw, out_mad->data + 8, 8); 429 430 if (mlx4_is_mfunc(dev->dev) && !netw_view) { 431 if (index) { 432 /* For any index > 0, return the null guid */ 433 err = 0; 434 clear = 1; 435 goto out; 436 } 437 } 438 439 init_query_mad(in_mad); 440 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 441 in_mad->attr_mod = cpu_to_be32(index / 8); 442 443 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, 444 NULL, NULL, in_mad, out_mad); 445 if (err) 446 goto out; 447 448 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 449 450out: 451 if (clear) 452 memset(gid->raw + 8, 0, 8); 453 kfree(in_mad); 454 kfree(out_mad); 455 return err; 456} 457 458static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index, 459 union ib_gid *gid) 460{ 461 struct mlx4_ib_dev *dev = to_mdev(ibdev); 462 463 *gid = dev->iboe.gid_table[port - 1][index]; 464 465 return 0; 466} 467 468static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 469 union ib_gid *gid) 470{ 471 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND) 472 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0); 473 else 474 return iboe_query_gid(ibdev, port, index, gid); 475} 476 477int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 478 u16 *pkey, int netw_view) 479{ 480 struct ib_smp *in_mad = NULL; 481 struct ib_smp *out_mad = NULL; 482 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 483 int err = -ENOMEM; 484 485 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 486 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 487 if (!in_mad || !out_mad) 488 goto out; 489 490 init_query_mad(in_mad); 491 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 492 in_mad->attr_mod = cpu_to_be32(index / 32); 493 494 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view) 495 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 496 497 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL, 498 in_mad, out_mad); 499 if (err) 500 goto out; 501 502 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 503 504out: 505 kfree(in_mad); 506 kfree(out_mad); 507 return err; 508} 509 510static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) 511{ 512 return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0); 513} 514 515static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, 516 struct ib_device_modify *props) 517{ 518 struct mlx4_cmd_mailbox *mailbox; 519 unsigned long flags; 520 521 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 522 return -EOPNOTSUPP; 523 524 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) 525 return 0; 526 527 if (mlx4_is_slave(to_mdev(ibdev)->dev)) 528 return -EOPNOTSUPP; 529 530 spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags); 531 memcpy(ibdev->node_desc, props->node_desc, 64); 532 spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags); 533 534 /* 535 * If possible, pass node desc to FW, so it can generate 536 * a 144 trap. If cmd fails, just ignore. 537 */ 538 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev); 539 if (IS_ERR(mailbox)) 540 return 0; 541 542 memset(mailbox->buf, 0, 256); 543 memcpy(mailbox->buf, props->node_desc, 64); 544 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0, 545 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 546 547 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox); 548 549 return 0; 550} 551 552static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, 553 u32 cap_mask) 554{ 555 struct mlx4_cmd_mailbox *mailbox; 556 int err; 557 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; 558 559 mailbox = mlx4_alloc_cmd_mailbox(dev->dev); 560 if (IS_ERR(mailbox)) 561 return PTR_ERR(mailbox); 562 563 memset(mailbox->buf, 0, 256); 564 565 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { 566 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; 567 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); 568 } else { 569 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; 570 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); 571 } 572 573 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, 574 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE); 575 576 mlx4_free_cmd_mailbox(dev->dev, mailbox); 577 return err; 578} 579 580static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, 581 struct ib_port_modify *props) 582{ 583 struct ib_port_attr attr; 584 u32 cap_mask; 585 int err; 586 587 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); 588 589 err = mlx4_ib_query_port(ibdev, port, &attr); 590 if (err) 591 goto out; 592 593 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 594 ~props->clr_port_cap_mask; 595 596 err = mlx4_SET_PORT(to_mdev(ibdev), port, 597 !!(mask & IB_PORT_RESET_QKEY_CNTR), 598 cap_mask); 599 600out: 601 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 602 return err; 603} 604 605static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, 606 struct ib_udata *udata) 607{ 608 struct mlx4_ib_dev *dev = to_mdev(ibdev); 609 struct mlx4_ib_ucontext *context; 610 struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3; 611 struct mlx4_ib_alloc_ucontext_resp resp; 612 int err; 613 614 if (!dev->ib_active) 615 return ERR_PTR(-EAGAIN); 616 617 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) { 618 resp_v3.qp_tab_size = dev->dev->caps.num_qps; 619 if (mlx4_wc_enabled()) { 620 resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size; 621 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 622 } else { 623 resp_v3.bf_reg_size = 0; 624 resp_v3.bf_regs_per_page = 0; 625 } 626 } else { 627 resp.dev_caps = dev->dev->caps.userspace_caps; 628 resp.qp_tab_size = dev->dev->caps.num_qps; 629 if (mlx4_wc_enabled()) { 630 resp.bf_reg_size = dev->dev->caps.bf_reg_size; 631 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 632 } else { 633 resp.bf_reg_size = 0; 634 resp.bf_regs_per_page = 0; 635 } 636 resp.cqe_size = dev->dev->caps.cqe_size; 637 } 638 639 context = kmalloc(sizeof *context, GFP_KERNEL); 640 if (!context) 641 return ERR_PTR(-ENOMEM); 642 643 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); 644 if (err) { 645 kfree(context); 646 return ERR_PTR(err); 647 } 648 649 INIT_LIST_HEAD(&context->db_page_list); 650 mutex_init(&context->db_page_mutex); 651 652 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) 653 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3)); 654 else 655 err = ib_copy_to_udata(udata, &resp, sizeof(resp)); 656 657 if (err) { 658 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); 659 kfree(context); 660 return ERR_PTR(-EFAULT); 661 } 662 663 return &context->ibucontext; 664} 665 666static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 667{ 668 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); 669 670 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); 671 kfree(context); 672 673 return 0; 674} 675#ifdef __linux__ 676static unsigned long mlx4_ib_get_unmapped_area(struct file *file, 677 unsigned long addr, 678 unsigned long len, unsigned long pgoff, 679 unsigned long flags) 680{ 681 struct mm_struct *mm; 682 struct vm_area_struct *vma; 683 unsigned long start_addr; 684 unsigned long page_size_order; 685 unsigned long command; 686 687 mm = current->mm; 688 if (addr) 689 return current->mm->get_unmapped_area(file, addr, len, 690 pgoff, flags); 691 692 /* Last 8 bits hold the command others are data per that command */ 693 command = pgoff & MLX4_IB_MMAP_CMD_MASK; 694 if (command != MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) 695 return current->mm->get_unmapped_area(file, addr, len, 696 pgoff, flags); 697 698 page_size_order = pgoff >> MLX4_IB_MMAP_CMD_BITS; 699 /* code is based on the huge-pages get_unmapped_area code */ 700 start_addr = mm->free_area_cache; 701 702 if (len <= mm->cached_hole_size) 703 start_addr = TASK_UNMAPPED_BASE; 704 705 706full_search: 707 addr = ALIGN(start_addr, 1 << page_size_order); 708 709 for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { 710 /* At this point: (!vma || addr < vma->vm_end). */ 711 if (TASK_SIZE - len < addr) { 712 /* 713 * Start a new search - just in case we missed 714 * some holes. 715 */ 716 if (start_addr != TASK_UNMAPPED_BASE) { 717 start_addr = TASK_UNMAPPED_BASE; 718 goto full_search; 719 } 720 return -ENOMEM; 721 } 722 723 if (!vma || addr + len <= vma->vm_start) 724 return addr; 725 addr = ALIGN(vma->vm_end, 1 << page_size_order); 726 } 727} 728#endif 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 784static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, 785 struct ib_ucontext *context, 786 struct ib_udata *udata) 787{ 788 struct mlx4_ib_pd *pd; 789 int err; 790 791 pd = kmalloc(sizeof *pd, GFP_KERNEL); 792 if (!pd) 793 return ERR_PTR(-ENOMEM); 794 795 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); 796 if (err) { 797 kfree(pd); 798 return ERR_PTR(err); 799 } 800 801 if (context) 802 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { 803 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); 804 kfree(pd); 805 return ERR_PTR(-EFAULT); 806 } 807 808 return &pd->ibpd; 809} 810 811static int mlx4_ib_dealloc_pd(struct ib_pd *pd) 812{ 813 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); 814 kfree(pd); 815 816 return 0; 817} 818 819static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev, 820 struct ib_ucontext *context, 821 struct ib_udata *udata) 822{ 823 struct mlx4_ib_xrcd *xrcd; 824 int err; 825 826 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)) 827 return ERR_PTR(-ENOSYS); 828 829 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL); 830 if (!xrcd) 831 return ERR_PTR(-ENOMEM); 832 833 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn); 834 if (err) 835 goto err1; 836 837 xrcd->pd = ib_alloc_pd(ibdev); 838 if (IS_ERR(xrcd->pd)) { 839 err = PTR_ERR(xrcd->pd); 840 goto err2; 841 } 842 843 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0); 844 if (IS_ERR(xrcd->cq)) { 845 err = PTR_ERR(xrcd->cq); 846 goto err3; 847 } 848 849 return &xrcd->ibxrcd; 850 851err3: 852 ib_dealloc_pd(xrcd->pd); 853err2: 854 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn); 855err1: 856 kfree(xrcd); 857 return ERR_PTR(err); 858} 859 860static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 861{ 862 ib_destroy_cq(to_mxrcd(xrcd)->cq); 863 ib_dealloc_pd(to_mxrcd(xrcd)->pd); 864 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); 865 kfree(xrcd); 866 867 return 0; 868} 869 870static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) 871{ 872 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 873 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 874 struct mlx4_ib_gid_entry *ge; 875 876 ge = kzalloc(sizeof *ge, GFP_KERNEL); 877 if (!ge) 878 return -ENOMEM; 879 880 ge->gid = *gid; 881 if (mlx4_ib_add_mc(mdev, mqp, gid)) { 882 ge->port = mqp->port; 883 ge->added = 1; 884 } 885 886 mutex_lock(&mqp->mutex); 887 list_add_tail(&ge->list, &mqp->gid_list); 888 mutex_unlock(&mqp->mutex); 889 890 return 0; 891} 892 893int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 894 union ib_gid *gid) 895{ 896 u8 mac[6]; 897 struct net_device *ndev; 898 int ret = 0; 899 900 if (!mqp->port) 901 return 0; 902 903 spin_lock(&mdev->iboe.lock); 904 ndev = mdev->iboe.netdevs[mqp->port - 1]; 905 if (ndev) 906 dev_hold(ndev); 907 spin_unlock(&mdev->iboe.lock); 908 909 if (ndev) { 910 rdma_get_mcast_mac((struct in6_addr *)gid, mac); 911 rtnl_lock(); 912 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac, 6, 0); 913 ret = 1; 914 rtnl_unlock(); 915 dev_put(ndev); 916 } 917 918 return ret; 919} 920 921struct mlx4_ib_steering { 922 struct list_head list; 923 u64 reg_id; 924 union ib_gid gid; 925}; 926 927static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 928{ 929 int err; 930 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 931 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 932 u64 reg_id; 933 struct mlx4_ib_steering *ib_steering = NULL; 934 935 if (mdev->dev->caps.steering_mode == 936 MLX4_STEERING_MODE_DEVICE_MANAGED) { 937 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL); 938 if (!ib_steering) 939 return -ENOMEM; 940 } 941 942 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port, 943 !!(mqp->flags & 944 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), 945 MLX4_PROT_IB_IPV6, ®_id); 946 if (err) 947 goto err_malloc; 948 949 err = add_gid_entry(ibqp, gid); 950 if (err) 951 goto err_add; 952 953 if (ib_steering) { 954 memcpy(ib_steering->gid.raw, gid->raw, 16); 955 ib_steering->reg_id = reg_id; 956 mutex_lock(&mqp->mutex); 957 list_add(&ib_steering->list, &mqp->steering_rules); 958 mutex_unlock(&mqp->mutex); 959 } 960 return 0; 961 962err_add: 963 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, 964 MLX4_PROT_IB_IPV6, reg_id); 965err_malloc: 966 kfree(ib_steering); 967 968 return err; 969} 970 971enum { 972 IBV_FLOW_L4_NONE = 0, 973 IBV_FLOW_L4_OTHER = 3, 974 IBV_FLOW_L4_UDP = 5, 975 IBV_FLOW_L4_TCP = 6 976}; 977 978struct mlx4_cm_steering { 979 struct list_head list; 980 u64 reg_id; 981 struct ib_flow_spec spec; 982}; 983 984static int flow_spec_to_net_rule(struct ib_device *dev, struct ib_flow_spec *flow_spec, 985 struct list_head *rule_list_h) 986{ 987 struct mlx4_spec_list *spec_l2, *spec_l3, *spec_l4; 988 u64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 989 990 spec_l2 = kzalloc(sizeof *spec_l2, GFP_KERNEL); 991 if (!spec_l2) 992 return -ENOMEM; 993 994 switch (flow_spec->type) { 995 case IB_FLOW_ETH: 996 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 997 memcpy(spec_l2->eth.dst_mac, flow_spec->l2_id.eth.mac, ETH_ALEN); 998 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 999 spec_l2->eth.ether_type = flow_spec->l2_id.eth.ethertype; 1000 if (flow_spec->l2_id.eth.vlan_present) { 1001 spec_l2->eth.vlan_id = flow_spec->l2_id.eth.vlan; 1002 spec_l2->eth.vlan_id_msk = cpu_to_be16(0x0fff); 1003 } 1004 break; 1005 case IB_FLOW_IB_UC: 1006 spec_l2->id = MLX4_NET_TRANS_RULE_ID_IB; 1007 if(flow_spec->l2_id.ib_uc.qpn) { 1008 spec_l2->ib.l3_qpn = cpu_to_be32(flow_spec->l2_id.ib_uc.qpn); 1009 spec_l2->ib.qpn_msk = cpu_to_be32(0xffffff); 1010 } 1011 break; 1012 case IB_FLOW_IB_MC_IPV4: 1013 case IB_FLOW_IB_MC_IPV6: 1014 spec_l2->id = MLX4_NET_TRANS_RULE_ID_IB; 1015 memcpy(spec_l2->ib.dst_gid, flow_spec->l2_id.ib_mc.mgid, 16); 1016 memset(spec_l2->ib.dst_gid_msk, 0xff, 16); 1017 break; 1018 } 1019 1020 1021 list_add_tail(&spec_l2->list, rule_list_h); 1022 1023 if (flow_spec->l2_id.eth.ethertype == cpu_to_be16(ETH_P_IP) || 1024 flow_spec->type != IB_FLOW_ETH) { 1025 spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL); 1026 if (!spec_l3) 1027 return -ENOMEM; 1028 1029 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1030 spec_l3->ipv4.src_ip = flow_spec->src_ip; 1031 if (flow_spec->type != IB_FLOW_IB_MC_IPV4 && 1032 flow_spec->type != IB_FLOW_IB_MC_IPV6) 1033 spec_l3->ipv4.dst_ip = flow_spec->dst_ip; 1034 1035 if (spec_l3->ipv4.src_ip) 1036 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK; 1037 if (spec_l3->ipv4.dst_ip) 1038 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK; 1039 1040 list_add_tail(&spec_l3->list, rule_list_h); 1041 } 1042 1043 if (flow_spec->l4_protocol) { 1044 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 1045 if (!spec_l4) 1046 return -ENOMEM; 1047 1048 spec_l4->tcp_udp.src_port = flow_spec->src_port; 1049 spec_l4->tcp_udp.dst_port = flow_spec->dst_port; 1050 if (spec_l4->tcp_udp.src_port) 1051 spec_l4->tcp_udp.src_port_msk = 1052 MLX4_BE_SHORT_MASK; 1053 if (spec_l4->tcp_udp.dst_port) 1054 spec_l4->tcp_udp.dst_port_msk = 1055 MLX4_BE_SHORT_MASK; 1056 1057 switch (flow_spec->l4_protocol) { 1058 case IBV_FLOW_L4_UDP: 1059 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 1060 break; 1061 case IBV_FLOW_L4_TCP: 1062 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 1063 break; 1064 default: 1065 dev_err(dev->dma_device, 1066 "Unsupported l4 protocol.\n"); 1067 kfree(spec_l4); 1068 return -EPROTONOSUPPORT; 1069 } 1070 list_add_tail(&spec_l4->list, rule_list_h); 1071 } 1072 return 0; 1073} 1074 1075static int __mlx4_ib_flow_attach(struct mlx4_ib_dev *mdev, 1076 struct mlx4_ib_qp *mqp, 1077 struct ib_flow_spec *flow_spec, 1078 int priority, int lock_qp) 1079{ 1080 u64 reg_id = 0; 1081 int err = 0; 1082 struct mlx4_cm_steering *cm_flow; 1083 struct mlx4_spec_list *spec, *tmp_spec; 1084 1085 struct mlx4_net_trans_rule rule = 1086 { .queue_mode = MLX4_NET_TRANS_Q_FIFO, 1087 .exclusive = 0, 1088 }; 1089 1090 rule.promisc_mode = flow_spec->rule_type; 1091 rule.port = mqp->port; 1092 rule.qpn = mqp->mqp.qpn; 1093 INIT_LIST_HEAD(&rule.list); 1094 1095 cm_flow = kmalloc(sizeof(*cm_flow), GFP_KERNEL); 1096 if (!cm_flow) 1097 return -ENOMEM; 1098 1099 if (rule.promisc_mode == MLX4_FS_REGULAR) { 1100 rule.allow_loopback = !flow_spec->block_mc_loopback; 1101 rule.priority = MLX4_DOMAIN_UVERBS | priority; 1102 err = flow_spec_to_net_rule(&mdev->ib_dev, flow_spec, 1103 &rule.list); 1104 if (err) 1105 goto free_list; 1106 } 1107 1108 err = mlx4_flow_attach(mdev->dev, &rule, ®_id); 1109 if (err) 1110 goto free_list; 1111 1112 memcpy(&cm_flow->spec, flow_spec, sizeof(*flow_spec)); 1113 cm_flow->reg_id = reg_id; 1114 1115 if (lock_qp) 1116 mutex_lock(&mqp->mutex); 1117 list_add(&cm_flow->list, &mqp->rules_list); 1118 if (lock_qp) 1119 mutex_unlock(&mqp->mutex); 1120 1121free_list: 1122 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 1123 list_del(&spec->list); 1124 kfree(spec); 1125 } 1126 if (err) { 1127 kfree(cm_flow); 1128 dev_err(mdev->ib_dev.dma_device, 1129 "Fail to attach flow steering rule\n"); 1130 } 1131 return err; 1132} 1133 1134static int __mlx4_ib_flow_detach(struct mlx4_ib_dev *mdev, 1135 struct mlx4_ib_qp *mqp, 1136 struct ib_flow_spec *spec, int priority, 1137 int lock_qp) 1138{ 1139 struct mlx4_cm_steering *cm_flow; 1140 int ret; 1141 1142 if (lock_qp) 1143 mutex_lock(&mqp->mutex); 1144 list_for_each_entry(cm_flow, &mqp->rules_list, list) { 1145 if (!memcmp(&cm_flow->spec, spec, sizeof(*spec))) { 1146 list_del(&cm_flow->list); 1147 break; 1148 } 1149 } 1150 if (lock_qp) 1151 mutex_unlock(&mqp->mutex); 1152 1153 if (&cm_flow->list == &mqp->rules_list) { 1154 dev_err(mdev->ib_dev.dma_device, "Couldn't find reg_id for flow spec. " 1155 "Steering rule is left attached\n"); 1156 return -EINVAL; 1157 } 1158 1159 ret = mlx4_flow_detach(mdev->dev, cm_flow->reg_id); 1160 1161 kfree(cm_flow); 1162 return ret; 1163} 1164 1165static int mlx4_ib_flow_attach(struct ib_qp *qp, struct ib_flow_spec *flow_spec, 1166 int priority) 1167{ 1168 return __mlx4_ib_flow_attach(to_mdev(qp->device), to_mqp(qp), 1169 flow_spec, priority, 1); 1170} 1171 1172static int mlx4_ib_flow_detach(struct ib_qp *qp, struct ib_flow_spec *spec, 1173 int priority) 1174{ 1175 return __mlx4_ib_flow_detach(to_mdev(qp->device), to_mqp(qp), 1176 spec, priority, 1); 1177} 1178 1179static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw) 1180{ 1181 struct mlx4_ib_gid_entry *ge; 1182 struct mlx4_ib_gid_entry *tmp; 1183 struct mlx4_ib_gid_entry *ret = NULL; 1184 1185 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) { 1186 if (!memcmp(raw, ge->gid.raw, 16)) { 1187 ret = ge; 1188 break; 1189 } 1190 } 1191 1192 return ret; 1193} 1194 1195static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 1196{ 1197 int err; 1198 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device); 1199 struct mlx4_ib_qp *mqp = to_mqp(ibqp); 1200 u8 mac[6]; 1201 struct net_device *ndev; 1202 struct mlx4_ib_gid_entry *ge; 1203 u64 reg_id = 0; 1204 1205 if (mdev->dev->caps.steering_mode == 1206 MLX4_STEERING_MODE_DEVICE_MANAGED) { 1207 struct mlx4_ib_steering *ib_steering; 1208 1209 mutex_lock(&mqp->mutex); 1210 list_for_each_entry(ib_steering, &mqp->steering_rules, list) { 1211 if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) { 1212 list_del(&ib_steering->list); 1213 break; 1214 } 1215 } 1216 mutex_unlock(&mqp->mutex); 1217 if (&ib_steering->list == &mqp->steering_rules) { 1218 pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n"); 1219 return -EINVAL; 1220 } 1221 reg_id = ib_steering->reg_id; 1222 kfree(ib_steering); 1223 } 1224 1225 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, 1226 MLX4_PROT_IB_IPV6, reg_id); 1227 if (err) 1228 return err; 1229 1230 mutex_lock(&mqp->mutex); 1231 ge = find_gid_entry(mqp, gid->raw); 1232 if (ge) { 1233 spin_lock(&mdev->iboe.lock); 1234 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL; 1235 if (ndev) 1236 dev_hold(ndev); 1237 spin_unlock(&mdev->iboe.lock); 1238 rdma_get_mcast_mac((struct in6_addr *)gid, mac); 1239 if (ndev) { 1240 rtnl_lock(); 1241 dev_mc_delete(mdev->iboe.netdevs[ge->port - 1], mac, 6, 0); 1242 rtnl_unlock(); 1243 dev_put(ndev); 1244 } 1245 list_del(&ge->list); 1246 kfree(ge); 1247 } else 1248 pr_warn("could not find mgid entry\n"); 1249 1250 mutex_unlock(&mqp->mutex); 1251 1252 return 0; 1253} 1254 1255static int init_node_data(struct mlx4_ib_dev *dev) 1256{ 1257 struct ib_smp *in_mad = NULL; 1258 struct ib_smp *out_mad = NULL; 1259 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS; 1260 int err = -ENOMEM; 1261 1262 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1263 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1264 if (!in_mad || !out_mad) 1265 goto out; 1266 1267 init_query_mad(in_mad); 1268 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1269 if (mlx4_is_master(dev->dev)) 1270 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW; 1271 1272 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); 1273 if (err) 1274 goto out; 1275 1276 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1277 1278 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1279 1280 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad); 1281 if (err) 1282 goto out; 1283 1284 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1285 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1286 1287out: 1288 kfree(in_mad); 1289 kfree(out_mad); 1290 return err; 1291} 1292 1293static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1294 char *buf) 1295{ 1296 struct mlx4_ib_dev *dev = 1297 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1298 return sprintf(buf, "MT%d\n", dev->dev->pdev->device); 1299} 1300 1301static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1302 char *buf) 1303{ 1304 struct mlx4_ib_dev *dev = 1305 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1306 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), 1307 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, 1308 (int) dev->dev->caps.fw_ver & 0xffff); 1309} 1310 1311static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1312 char *buf) 1313{ 1314 struct mlx4_ib_dev *dev = 1315 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1316 return sprintf(buf, "%x\n", dev->dev->rev_id); 1317} 1318 1319static ssize_t show_board(struct device *device, struct device_attribute *attr, 1320 char *buf) 1321{ 1322 struct mlx4_ib_dev *dev = 1323 container_of(device, struct mlx4_ib_dev, ib_dev.dev); 1324 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, 1325 dev->dev->board_id); 1326} 1327 1328static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1329static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1330static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1331static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1332 1333static struct device_attribute *mlx4_class_attributes[] = { 1334 &dev_attr_hw_rev, 1335 &dev_attr_fw_ver, 1336 &dev_attr_hca_type, 1337 &dev_attr_board_id 1338}; 1339 1340static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev) 1341{ 1342#ifdef __linux__ 1343 memcpy(eui, dev->dev_addr, 3); 1344 memcpy(eui + 5, dev->dev_addr + 3, 3); 1345#else 1346 memcpy(eui, IF_LLADDR(dev), 3); 1347 memcpy(eui + 5, IF_LLADDR(dev) + 3, 3); 1348#endif 1349 if (vlan_id < 0x1000) { 1350 eui[3] = vlan_id >> 8; 1351 eui[4] = vlan_id & 0xff; 1352 } else { 1353 eui[3] = 0xff; 1354 eui[4] = 0xfe; 1355 } 1356 eui[0] ^= 2; 1357} 1358 1359static void update_gids_task(struct work_struct *work) 1360{ 1361 struct update_gid_work *gw = container_of(work, struct update_gid_work, work); 1362 struct mlx4_cmd_mailbox *mailbox; 1363 union ib_gid *gids; 1364 int err; 1365 struct mlx4_dev *dev = gw->dev->dev; 1366 1367 mailbox = mlx4_alloc_cmd_mailbox(dev); 1368 if (IS_ERR(mailbox)) { 1369 pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox)); 1370 return; 1371 } 1372 1373 gids = mailbox->buf; 1374 memcpy(gids, gw->gids, sizeof gw->gids); 1375 1376 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port, 1377 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B, 1378 MLX4_CMD_WRAPPED); 1379 if (err) 1380 pr_warn("set port command failed\n"); 1381 else { 1382 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids); 1383 mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE); 1384 } 1385 1386 mlx4_free_cmd_mailbox(dev, mailbox); 1387 kfree(gw); 1388} 1389 1390static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear) 1391{ 1392 struct net_device *ndev = dev->iboe.netdevs[port - 1]; 1393 struct update_gid_work *work; 1394 struct net_device *tmp; 1395 int i; 1396 u8 *hits; 1397 union ib_gid gid; 1398 int index_free; 1399 int found; 1400 int need_update = 0; 1401 int max_gids; 1402 u16 vid; 1403 1404 work = kzalloc(sizeof *work, GFP_ATOMIC); 1405 if (!work) 1406 return -ENOMEM; 1407 1408 hits = kzalloc(128, GFP_ATOMIC); 1409 if (!hits) { 1410 kfree(work); 1411 return -ENOMEM; 1412 } 1413 1414 max_gids = dev->dev->caps.gid_table_len[port]; 1415 1416#ifdef __linux__ 1417 rcu_read_lock(); 1418 for_each_netdev_rcu(&init_net, tmp) { 1419#else 1420 IFNET_RLOCK(); 1421 TAILQ_FOREACH(tmp, &V_ifnet, if_link) { 1422#endif 1423 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) { 1424 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL); 1425 vid = rdma_vlan_dev_vlan_id(tmp); 1426 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev); 1427 found = 0; 1428 index_free = -1; 1429 for (i = 0; i < max_gids; ++i) { 1430 if (index_free < 0 && 1431 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) 1432 index_free = i; 1433 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) { 1434 hits[i] = 1; 1435 found = 1; 1436 break; 1437 } 1438 } 1439 1440 if (!found) { 1441 if (tmp == ndev && 1442 (memcmp(&dev->iboe.gid_table[port - 1][0], 1443 &gid, sizeof gid) || 1444 !memcmp(&dev->iboe.gid_table[port - 1][0], 1445 &zgid, sizeof gid))) { 1446 dev->iboe.gid_table[port - 1][0] = gid; 1447 ++need_update; 1448 hits[0] = 1; 1449 } else if (index_free >= 0) { 1450 dev->iboe.gid_table[port - 1][index_free] = gid; 1451 hits[index_free] = 1; 1452 ++need_update; 1453 } 1454 } 1455 } 1456#ifdef __linux__ 1457 } 1458 rcu_read_unlock(); 1459#else 1460 } 1461 IFNET_RUNLOCK(); 1462#endif 1463 1464 for (i = 0; i < max_gids; ++i) 1465 if (!hits[i]) { 1466 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid)) 1467 ++need_update; 1468 dev->iboe.gid_table[port - 1][i] = zgid; 1469 } 1470 1471 if (need_update) { 1472 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids); 1473 INIT_WORK(&work->work, update_gids_task); 1474 work->port = port; 1475 work->dev = dev; 1476 queue_work(wq, &work->work); 1477 } else 1478 kfree(work); 1479 1480 kfree(hits); 1481 return 0; 1482} 1483 1484static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event) 1485{ 1486 switch (event) { 1487 case NETDEV_UP: 1488#ifdef __linux__ 1489 case NETDEV_CHANGEADDR: 1490#endif 1491 update_ipv6_gids(dev, port, 0); 1492 break; 1493 1494 case NETDEV_DOWN: 1495 update_ipv6_gids(dev, port, 1); 1496 dev->iboe.netdevs[port - 1] = NULL; 1497 } 1498} 1499 1500static void netdev_added(struct mlx4_ib_dev *dev, int port) 1501{ 1502 update_ipv6_gids(dev, port, 0); 1503} 1504 1505static void netdev_removed(struct mlx4_ib_dev *dev, int port) 1506{ 1507 update_ipv6_gids(dev, port, 1); 1508} 1509 1510static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event, 1511 void *ptr) 1512{ 1513 struct net_device *dev = ptr; 1514 struct mlx4_ib_dev *ibdev; 1515 struct net_device *oldnd; 1516 struct mlx4_ib_iboe *iboe; 1517 int port; 1518 1519#ifdef __linux__ 1520 if (!net_eq(dev_net(dev), &init_net)) 1521 return NOTIFY_DONE; 1522#endif 1523 1524 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb); 1525 iboe = &ibdev->iboe; 1526 1527 spin_lock(&iboe->lock); 1528 mlx4_foreach_ib_transport_port(port, ibdev->dev) { 1529 oldnd = iboe->netdevs[port - 1]; 1530 iboe->netdevs[port - 1] = 1531 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); 1532 if (oldnd != iboe->netdevs[port - 1]) { 1533 if (iboe->netdevs[port - 1]) 1534 netdev_added(ibdev, port); 1535 else 1536 netdev_removed(ibdev, port); 1537 } 1538 } 1539 1540 if (dev == iboe->netdevs[0] || 1541 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0])) 1542 handle_en_event(ibdev, 1, event); 1543 else if (dev == iboe->netdevs[1] 1544 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1])) 1545 handle_en_event(ibdev, 2, event); 1546 1547 spin_unlock(&iboe->lock); 1548 1549 return NOTIFY_DONE; 1550} 1551 1552static void init_pkeys(struct mlx4_ib_dev *ibdev) 1553{ 1554 int port; 1555 int slave; 1556 int i; 1557 1558 if (mlx4_is_master(ibdev->dev)) { 1559 for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) { 1560 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { 1561 for (i = 0; 1562 i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; 1563 ++i) { 1564 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] = 1565 /* master has the identity virt2phys pkey mapping */ 1566 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i : 1567 ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1; 1568 mlx4_sync_pkey_table(ibdev->dev, slave, port, i, 1569 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]); 1570 } 1571 } 1572 } 1573 /* initialize pkey cache */ 1574 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) { 1575 for (i = 0; 1576 i < ibdev->dev->phys_caps.pkey_phys_table_len[port]; 1577 ++i) 1578 ibdev->pkeys.phys_pkey_cache[port-1][i] = 1579 (i) ? 0 : 0xFFFF; 1580 } 1581 } 1582} 1583 1584static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) 1585{ 1586 char name[32]; 1587 int eq_per_port = 0; 1588 int added_eqs = 0; 1589 int total_eqs = 0; 1590 int i, j, eq; 1591 1592 /* Legacy mode or comp_pool is not large enough */ 1593 if (dev->caps.comp_pool == 0 || 1594 dev->caps.num_ports > dev->caps.comp_pool) 1595 return; 1596 1597 eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/ 1598 dev->caps.num_ports); 1599 1600 /* Init eq table */ 1601 added_eqs = 0; 1602 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) 1603 added_eqs += eq_per_port; 1604 1605 total_eqs = dev->caps.num_comp_vectors + added_eqs; 1606 1607 ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL); 1608 if (!ibdev->eq_table) 1609 return; 1610 1611 ibdev->eq_added = added_eqs; 1612 1613 eq = 0; 1614 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) { 1615 for (j = 0; j < eq_per_port; j++) { 1616 //sprintf(name, "mlx4-ib-%d-%d@%s", 1617 // i, j, dev->pdev->bus->conf.pd_name); 1618 /* Set IRQ for specific name (per ring) */ 1619 if (mlx4_assign_eq(dev, name, 1620 &ibdev->eq_table[eq])) { 1621 /* Use legacy (same as mlx4_en driver) */ 1622 pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq); 1623 ibdev->eq_table[eq] = 1624 (eq % dev->caps.num_comp_vectors); 1625 } 1626 eq++; 1627 } 1628 } 1629 1630 /* Fill the reset of the vector with legacy EQ */ 1631 for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++) 1632 ibdev->eq_table[eq++] = i; 1633 1634 /* Advertise the new number of EQs to clients */ 1635 ibdev->ib_dev.num_comp_vectors = total_eqs; 1636} 1637 1638static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev) 1639{ 1640 int i; 1641 1642 /* no additional eqs were added */ 1643 if (!ibdev->eq_table) 1644 return; 1645 1646 /* Reset the advertised EQ number */ 1647 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; 1648 1649 /* Free only the added eqs */ 1650 for (i = 0; i < ibdev->eq_added; i++) { 1651 /* Don't free legacy eqs if used */ 1652 if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors) 1653 continue; 1654 mlx4_release_eq(dev, ibdev->eq_table[i]); 1655 } 1656 1657 kfree(ibdev->eq_table); 1658} 1659 1660/* 1661 * create show function and a device_attribute struct pointing to 1662 * the function for _name 1663 */ 1664#define DEVICE_DIAG_RPRT_ATTR(_name, _offset, _op_mod) \ 1665static ssize_t show_rprt_##_name(struct device *dev, \ 1666 struct device_attribute *attr, \ 1667 char *buf){ \ 1668 return show_diag_rprt(dev, buf, _offset, _op_mod); \ 1669} \ 1670static DEVICE_ATTR(_name, S_IRUGO, show_rprt_##_name, NULL); 1671 1672#define MLX4_DIAG_RPRT_CLEAR_DIAGS 3 1673 1674static size_t show_diag_rprt(struct device *device, char *buf, 1675 u32 offset, u8 op_modifier) 1676{ 1677 size_t ret; 1678 u32 counter_offset = offset; 1679 u32 diag_counter = 0; 1680 struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, 1681 ib_dev.dev); 1682 1683 ret = mlx4_query_diag_counters(dev->dev, 1, op_modifier, 1684 &counter_offset, &diag_counter); 1685 if (ret) 1686 return ret; 1687 1688 return sprintf(buf, "%d\n", diag_counter); 1689} 1690 1691static ssize_t clear_diag_counters(struct device *device, 1692 struct device_attribute *attr, 1693 const char *buf, size_t length) 1694{ 1695 size_t ret; 1696 struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev, 1697 ib_dev.dev); 1698 1699 ret = mlx4_query_diag_counters(dev->dev, 0, MLX4_DIAG_RPRT_CLEAR_DIAGS, 1700 NULL, NULL); 1701 if (ret) 1702 return ret; 1703 1704 return length; 1705} 1706 1707DEVICE_DIAG_RPRT_ATTR(rq_num_lle , 0x00, 2); 1708DEVICE_DIAG_RPRT_ATTR(sq_num_lle , 0x04, 2); 1709DEVICE_DIAG_RPRT_ATTR(rq_num_lqpoe , 0x08, 2); 1710DEVICE_DIAG_RPRT_ATTR(sq_num_lqpoe , 0x0C, 2); 1711DEVICE_DIAG_RPRT_ATTR(rq_num_lpe , 0x18, 2); 1712DEVICE_DIAG_RPRT_ATTR(sq_num_lpe , 0x1C, 2); 1713DEVICE_DIAG_RPRT_ATTR(rq_num_wrfe , 0x20, 2); 1714DEVICE_DIAG_RPRT_ATTR(sq_num_wrfe , 0x24, 2); 1715DEVICE_DIAG_RPRT_ATTR(sq_num_mwbe , 0x2C, 2); 1716DEVICE_DIAG_RPRT_ATTR(sq_num_bre , 0x34, 2); 1717DEVICE_DIAG_RPRT_ATTR(rq_num_lae , 0x38, 2); 1718DEVICE_DIAG_RPRT_ATTR(sq_num_rire , 0x44, 2); 1719DEVICE_DIAG_RPRT_ATTR(rq_num_rire , 0x48, 2); 1720DEVICE_DIAG_RPRT_ATTR(sq_num_rae , 0x4C, 2); 1721DEVICE_DIAG_RPRT_ATTR(rq_num_rae , 0x50, 2); 1722DEVICE_DIAG_RPRT_ATTR(sq_num_roe , 0x54, 2); 1723DEVICE_DIAG_RPRT_ATTR(sq_num_tree , 0x5C, 2); 1724DEVICE_DIAG_RPRT_ATTR(sq_num_rree , 0x64, 2); 1725DEVICE_DIAG_RPRT_ATTR(rq_num_rnr , 0x68, 2); 1726DEVICE_DIAG_RPRT_ATTR(sq_num_rnr , 0x6C, 2); 1727DEVICE_DIAG_RPRT_ATTR(rq_num_oos , 0x100, 2); 1728DEVICE_DIAG_RPRT_ATTR(sq_num_oos , 0x104, 2); 1729DEVICE_DIAG_RPRT_ATTR(rq_num_mce , 0x108, 2); 1730DEVICE_DIAG_RPRT_ATTR(rq_num_udsdprd , 0x118, 2); 1731DEVICE_DIAG_RPRT_ATTR(rq_num_ucsdprd , 0x120, 2); 1732DEVICE_DIAG_RPRT_ATTR(num_cqovf , 0x1A0, 2); 1733DEVICE_DIAG_RPRT_ATTR(num_eqovf , 0x1A4, 2); 1734DEVICE_DIAG_RPRT_ATTR(num_baddb , 0x1A8, 2); 1735 1736static DEVICE_ATTR(clear_diag, S_IWUSR, NULL, clear_diag_counters); 1737 1738static struct attribute *diag_rprt_attrs[] = { 1739 &dev_attr_rq_num_lle.attr, 1740 &dev_attr_sq_num_lle.attr, 1741 &dev_attr_rq_num_lqpoe.attr, 1742 &dev_attr_sq_num_lqpoe.attr, 1743 &dev_attr_rq_num_lpe.attr, 1744 &dev_attr_sq_num_lpe.attr, 1745 &dev_attr_rq_num_wrfe.attr, 1746 &dev_attr_sq_num_wrfe.attr, 1747 &dev_attr_sq_num_mwbe.attr, 1748 &dev_attr_sq_num_bre.attr, 1749 &dev_attr_rq_num_lae.attr, 1750 &dev_attr_sq_num_rire.attr, 1751 &dev_attr_rq_num_rire.attr, 1752 &dev_attr_sq_num_rae.attr, 1753 &dev_attr_rq_num_rae.attr, 1754 &dev_attr_sq_num_roe.attr, 1755 &dev_attr_sq_num_tree.attr, 1756 &dev_attr_sq_num_rree.attr, 1757 &dev_attr_rq_num_rnr.attr, 1758 &dev_attr_sq_num_rnr.attr, 1759 &dev_attr_rq_num_oos.attr, 1760 &dev_attr_sq_num_oos.attr, 1761 &dev_attr_rq_num_mce.attr, 1762 &dev_attr_rq_num_udsdprd.attr, 1763 &dev_attr_rq_num_ucsdprd.attr, 1764 &dev_attr_num_cqovf.attr, 1765 &dev_attr_num_eqovf.attr, 1766 &dev_attr_num_baddb.attr, 1767 &dev_attr_clear_diag.attr, 1768 NULL 1769}; 1770 1771static struct attribute_group diag_counters_group = { 1772 .name = "diag_counters", 1773 .attrs = diag_rprt_attrs 1774}; 1775 1776#ifdef __linux__ 1777static int mlx4_ib_proc_init(void) 1778{ 1779 /* Creating procfs directories /proc/drivers/mlx4_ib/ && 1780 /proc/drivers/mlx4_ib/mrs for further use by the driver. 1781 */ 1782 int err; 1783 1784 mlx4_ib_driver_dir_entry = proc_mkdir(MLX4_IB_DRIVER_PROC_DIR_NAME, 1785 NULL); 1786 if (!mlx4_ib_driver_dir_entry) { 1787 pr_err("mlx4_ib_proc_init has failed for %s\n", 1788 MLX4_IB_DRIVER_PROC_DIR_NAME); 1789 err = -ENODEV; 1790 goto error; 1791 } 1792 1793 mlx4_mrs_dir_entry = proc_mkdir(MLX4_IB_MRS_PROC_DIR_NAME, 1794 mlx4_ib_driver_dir_entry); 1795 if (!mlx4_mrs_dir_entry) { 1796 pr_err("mlx4_ib_proc_init has failed for %s\n", 1797 MLX4_IB_MRS_PROC_DIR_NAME); 1798 err = -ENODEV; 1799 goto remove_entry; 1800 } 1801 1802 return 0; 1803 1804remove_entry: 1805 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, 1806 NULL); 1807error: 1808 return err; 1809} 1810#endif 1811 1812static void init_dev_assign(void) 1813{ 1814 int bus, slot, fn, ib_idx; 1815 char *p = dev_assign_str, *t; 1816 char curr_val[32] = {0}; 1817 int ret; 1818 int j, i = 0; 1819 1820 memset(dr, 0, sizeof dr); 1821 1822 if (dev_assign_str[0] == 0) 1823 return; 1824 1825 while (strlen(p)) { 1826 ret = sscanf(p, "%02x:%02x.%x-%x", &bus, &slot, &fn, &ib_idx); 1827 if (ret != 4 || ib_idx < 0) 1828 goto err; 1829 1830 for (j = 0; j < i; j++) 1831 if (dr[j].nr == ib_idx) 1832 goto err; 1833 1834 dr[i].bus = bus; 1835 dr[i].dev = slot; 1836 dr[i].func = fn; 1837 dr[i].nr = ib_idx; 1838 1839 t = strchr(p, ','); 1840 sprintf(curr_val, "%02x:%02x.%x-%x", bus, slot, fn, ib_idx); 1841 if ((!t) && strlen(p) == strlen(curr_val)) 1842 return; 1843 1844 if (!t || (t + 1) >= dev_assign_str + sizeof dev_assign_str) 1845 goto err; 1846 1847 ++i; 1848 if (i >= MAX_DR) 1849 goto err; 1850 1851 p = t + 1; 1852 } 1853 1854 return; 1855err: 1856 memset(dr, 0, sizeof dr); 1857 printk(KERN_WARNING "mlx4_ib: The value of 'dev_assign_str' parameter " 1858 "is incorrect. The parameter value is discarded!"); 1859} 1860 1861static void *mlx4_ib_add(struct mlx4_dev *dev) 1862{ 1863 struct mlx4_ib_dev *ibdev; 1864 int num_ports = 0; 1865 int i, j; 1866 int err; 1867 struct mlx4_ib_iboe *iboe; 1868 1869 printk(KERN_INFO "%s", mlx4_ib_version); 1870 1871 mlx4_foreach_ib_transport_port(i, dev) 1872 num_ports++; 1873 1874 /* No point in registering a device with no ports... */ 1875 if (num_ports == 0) 1876 return NULL; 1877 1878 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); 1879 if (!ibdev) { 1880 dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); 1881 return NULL; 1882 } 1883 1884 iboe = &ibdev->iboe; 1885 1886 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) 1887 goto err_dealloc; 1888 1889 if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) 1890 goto err_pd; 1891 1892 ibdev->priv_uar.map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, 1893 PAGE_SIZE); 1894 1895 if (!ibdev->priv_uar.map) 1896 goto err_uar; 1897 1898 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); 1899 1900 ibdev->dev = dev; 1901 1902 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); 1903 ibdev->ib_dev.owner = THIS_MODULE; 1904 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; 1905 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; 1906 ibdev->num_ports = num_ports; 1907 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; 1908 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; 1909 ibdev->ib_dev.dma_device = &dev->pdev->dev; 1910 1911 if (dev->caps.userspace_caps) 1912 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; 1913 else 1914 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION; 1915 1916 ibdev->ib_dev.uverbs_cmd_mask = 1917 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1918 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1919 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1920 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1921 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1922 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1923 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1924 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1925 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1926 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1927 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1928 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1929 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1930 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1931 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1932 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1933 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | 1934 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1935 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1936 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1937 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | 1938 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | 1939 (1ull << IB_USER_VERBS_CMD_OPEN_QP) | 1940 (1ull << IB_USER_VERBS_CMD_ATTACH_FLOW) | 1941 (1ull << IB_USER_VERBS_CMD_DETACH_FLOW) | 1942 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1943 1944 ibdev->ib_dev.query_device = mlx4_ib_query_device; 1945 ibdev->ib_dev.query_port = mlx4_ib_query_port; 1946 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer; 1947 ibdev->ib_dev.query_gid = mlx4_ib_query_gid; 1948 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; 1949 ibdev->ib_dev.modify_device = mlx4_ib_modify_device; 1950 ibdev->ib_dev.modify_port = mlx4_ib_modify_port; 1951 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; 1952 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; 1953 ibdev->ib_dev.mmap = mlx4_ib_mmap; 1954#ifdef __linux__ 1955 ibdev->ib_dev.get_unmapped_area = mlx4_ib_get_unmapped_area; 1956#endif 1957 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; 1958 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; 1959 ibdev->ib_dev.create_ah = mlx4_ib_create_ah; 1960 ibdev->ib_dev.query_ah = mlx4_ib_query_ah; 1961 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; 1962 ibdev->ib_dev.create_srq = mlx4_ib_create_srq; 1963 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; 1964 ibdev->ib_dev.query_srq = mlx4_ib_query_srq; 1965 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; 1966 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; 1967 ibdev->ib_dev.create_qp = mlx4_ib_create_qp; 1968 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; 1969 ibdev->ib_dev.query_qp = mlx4_ib_query_qp; 1970 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; 1971 ibdev->ib_dev.post_send = mlx4_ib_post_send; 1972 ibdev->ib_dev.post_recv = mlx4_ib_post_recv; 1973 ibdev->ib_dev.create_cq = mlx4_ib_create_cq; 1974 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; 1975 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; 1976 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; 1977 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; 1978 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; 1979 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; 1980 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; 1981 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; 1982 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; 1983 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; 1984 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; 1985 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; 1986 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; 1987 ibdev->ib_dev.attach_flow = mlx4_ib_flow_attach; 1988 ibdev->ib_dev.detach_flow = mlx4_ib_flow_detach; 1989 ibdev->ib_dev.process_mad = mlx4_ib_process_mad; 1990 1991 if (!mlx4_is_slave(ibdev->dev)) { 1992 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; 1993 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; 1994 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; 1995 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; 1996 } 1997 1998 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) { 1999 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd; 2000 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd; 2001 ibdev->ib_dev.uverbs_cmd_mask |= 2002 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | 2003 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); 2004 } 2005 2006 mlx4_ib_alloc_eqs(dev, ibdev); 2007 2008 spin_lock_init(&iboe->lock); 2009 2010 if (init_node_data(ibdev)) 2011 goto err_map; 2012 2013 for (i = 0; i < ibdev->num_ports; ++i) { 2014 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) == 2015 IB_LINK_LAYER_ETHERNET) { 2016 err = mlx4_counter_alloc(ibdev->dev, i + 1, &ibdev->counters[i]); 2017 if (err) 2018 ibdev->counters[i] = -1; 2019 } else 2020 ibdev->counters[i] = -1; 2021 } 2022 2023 spin_lock_init(&ibdev->sm_lock); 2024 mutex_init(&ibdev->cap_mask_mutex); 2025 2026 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && 2027 !mlx4_is_slave(dev)) { 2028 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS; 2029 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count, 2030 MLX4_IB_UC_STEER_QPN_ALIGN, &ibdev->steer_qpn_base, 0); 2031 if (err) 2032 goto err_counter; 2033 2034 ibdev->ib_uc_qpns_bitmap = 2035 kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) * 2036 sizeof(long), 2037 GFP_KERNEL); 2038 if (!ibdev->ib_uc_qpns_bitmap) { 2039 dev_err(&dev->pdev->dev, "bit map alloc failed\n"); 2040 goto err_steer_qp_release; 2041 } 2042 2043 bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count); 2044 2045 err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(dev, ibdev->steer_qpn_base, 2046 ibdev->steer_qpn_base + ibdev->steer_qpn_count - 1); 2047 if (err) 2048 goto err_steer_free_bitmap; 2049 } 2050 2051 if (ib_register_device(&ibdev->ib_dev, NULL)) 2052 goto err_steer_free_bitmap; 2053 2054 if (mlx4_ib_mad_init(ibdev)) 2055 goto err_reg; 2056 2057 if (mlx4_ib_init_sriov(ibdev)) 2058 goto err_mad; 2059 2060 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) { 2061 iboe->nb.notifier_call = mlx4_ib_netdev_event; 2062 err = register_netdevice_notifier(&iboe->nb); 2063 if (err) 2064 goto err_sriov; 2065 } 2066 2067 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { 2068 if (device_create_file(&ibdev->ib_dev.dev, 2069 mlx4_class_attributes[j])) 2070 goto err_notif; 2071 } 2072 if (sysfs_create_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group)) 2073 goto err_notif; 2074 2075 ibdev->ib_active = true; 2076 2077 if (mlx4_is_mfunc(ibdev->dev)) 2078 init_pkeys(ibdev); 2079 2080 /* create paravirt contexts for any VFs which are active */ 2081 if (mlx4_is_master(ibdev->dev)) { 2082 for (j = 0; j < MLX4_MFUNC_MAX; j++) { 2083 if (j == mlx4_master_func_num(ibdev->dev)) 2084 continue; 2085 if (mlx4_is_slave_active(ibdev->dev, j)) 2086 do_slave_init(ibdev, j, 1); 2087 } 2088 } 2089 return ibdev; 2090 2091err_notif: 2092 if (unregister_netdevice_notifier(&ibdev->iboe.nb)) 2093 pr_warn("failure unregistering notifier\n"); 2094 flush_workqueue(wq); 2095 2096err_sriov: 2097 mlx4_ib_close_sriov(ibdev); 2098 2099err_mad: 2100 mlx4_ib_mad_cleanup(ibdev); 2101 2102err_reg: 2103 ib_unregister_device(&ibdev->ib_dev); 2104 2105err_steer_free_bitmap: 2106 kfree(ibdev->ib_uc_qpns_bitmap); 2107 2108err_steer_qp_release: 2109 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) 2110 mlx4_qp_release_range(dev, ibdev->steer_qpn_base, 2111 ibdev->steer_qpn_count); 2112err_counter: 2113 for (; i; --i) 2114 if (ibdev->counters[i - 1] != -1) 2115 mlx4_counter_free(ibdev->dev, i, ibdev->counters[i - 1]); 2116 2117err_map: 2118 iounmap(ibdev->priv_uar.map); 2119 mlx4_ib_free_eqs(dev, ibdev); 2120 2121err_uar: 2122 mlx4_uar_free(dev, &ibdev->priv_uar); 2123 2124err_pd: 2125 mlx4_pd_free(dev, ibdev->priv_pdn); 2126 2127err_dealloc: 2128 ib_dealloc_device(&ibdev->ib_dev); 2129 2130 return NULL; 2131} 2132 2133int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) 2134{ 2135 int offset; 2136 2137 WARN_ON(!dev->ib_uc_qpns_bitmap); 2138 2139 offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap, 2140 dev->steer_qpn_count, 2141 get_count_order(count)); 2142 if (offset < 0) 2143 return offset; 2144 2145 *qpn = dev->steer_qpn_base + offset; 2146 return 0; 2147} 2148 2149void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count) 2150{ 2151 if (!qpn || 2152 dev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) 2153 return; 2154 2155 BUG_ON(qpn < dev->steer_qpn_base); 2156 2157 bitmap_release_region(dev->ib_uc_qpns_bitmap, 2158 qpn - dev->steer_qpn_base, get_count_order(count)); 2159} 2160 2161int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 2162 int is_attach) 2163{ 2164 struct ib_flow_spec spec = { 2165 .type = IB_FLOW_IB_UC, 2166 .l2_id.ib_uc.qpn = mqp->ibqp.qp_num, 2167 }; 2168 2169 return is_attach ? 2170 __mlx4_ib_flow_attach(mdev, mqp, &spec, MLX4_DOMAIN_NIC, 0) 2171 : __mlx4_ib_flow_detach(mdev, mqp, &spec, MLX4_DOMAIN_NIC, 0); 2172} 2173 2174static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) 2175{ 2176 struct mlx4_ib_dev *ibdev = ibdev_ptr; 2177 int p,j; 2178 2179 mlx4_ib_close_sriov(ibdev); 2180 sysfs_remove_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group); 2181 mlx4_ib_mad_cleanup(ibdev); 2182 2183 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) { 2184 device_remove_file(&ibdev->ib_dev.dev, mlx4_class_attributes[j]); 2185 } 2186 2187 ib_unregister_device(&ibdev->ib_dev); 2188 2189 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { 2190 mlx4_qp_release_range(dev, ibdev->steer_qpn_base, 2191 ibdev->steer_qpn_count); 2192 kfree(ibdev->ib_uc_qpns_bitmap); 2193 } 2194 2195 if (ibdev->iboe.nb.notifier_call) { 2196 if (unregister_netdevice_notifier(&ibdev->iboe.nb)) 2197 pr_warn("failure unregistering notifier\n"); 2198 ibdev->iboe.nb.notifier_call = NULL; 2199 } 2200 iounmap(ibdev->priv_uar.map); 2201 for (p = 0; p < ibdev->num_ports; ++p) 2202 if (ibdev->counters[p] != -1) 2203 mlx4_counter_free(ibdev->dev, p + 1, ibdev->counters[p]); 2204 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB) 2205 mlx4_CLOSE_PORT(dev, p); 2206 2207 mlx4_ib_free_eqs(dev, ibdev); 2208 2209 mlx4_uar_free(dev, &ibdev->priv_uar); 2210 mlx4_pd_free(dev, ibdev->priv_pdn); 2211 ib_dealloc_device(&ibdev->ib_dev); 2212} 2213 2214static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init) 2215{ 2216 struct mlx4_ib_demux_work **dm = NULL; 2217 struct mlx4_dev *dev = ibdev->dev; 2218 int i; 2219 unsigned long flags; 2220 2221 if (!mlx4_is_master(dev)) 2222 return; 2223 2224 dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC); 2225 if (!dm) { 2226 pr_err("failed to allocate memory for tunneling qp update\n"); 2227 goto out; 2228 } 2229 2230 for (i = 0; i < dev->caps.num_ports; i++) { 2231 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC); 2232 if (!dm[i]) { 2233 pr_err("failed to allocate memory for tunneling qp update work struct\n"); 2234 for (i = 0; i < dev->caps.num_ports; i++) { 2235 if (dm[i]) 2236 kfree(dm[i]); 2237 } 2238 goto out; 2239 } 2240 } 2241 /* initialize or tear down tunnel QPs for the slave */ 2242 for (i = 0; i < dev->caps.num_ports; i++) { 2243 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work); 2244 dm[i]->port = i + 1; 2245 dm[i]->slave = slave; 2246 dm[i]->do_init = do_init; 2247 dm[i]->dev = ibdev; 2248 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags); 2249 if (!ibdev->sriov.is_going_down) 2250 queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work); 2251 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags); 2252 } 2253out: 2254 if (dm) 2255 kfree(dm); 2256 return; 2257} 2258 2259static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, 2260 enum mlx4_dev_event event, unsigned long param) 2261{ 2262 struct ib_event ibev; 2263 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); 2264 struct mlx4_eqe *eqe = NULL; 2265 struct ib_event_work *ew; 2266 int p = 0; 2267 2268 if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE) 2269 eqe = (struct mlx4_eqe *)param; 2270 else 2271 p = (int) param; 2272 2273 switch (event) { 2274 case MLX4_DEV_EVENT_PORT_UP: 2275 if (p > ibdev->num_ports) 2276 return; 2277 if (mlx4_is_master(dev) && 2278 rdma_port_get_link_layer(&ibdev->ib_dev, p) == 2279 IB_LINK_LAYER_INFINIBAND) { 2280 mlx4_ib_invalidate_all_guid_record(ibdev, p); 2281 } 2282 mlx4_ib_info((struct ib_device *) ibdev_ptr, 2283 "Port %d logical link is up\n", p); 2284 ibev.event = IB_EVENT_PORT_ACTIVE; 2285 break; 2286 2287 case MLX4_DEV_EVENT_PORT_DOWN: 2288 if (p > ibdev->num_ports) 2289 return; 2290 mlx4_ib_info((struct ib_device *) ibdev_ptr, 2291 "Port %d logical link is down\n", p); 2292 ibev.event = IB_EVENT_PORT_ERR; 2293 break; 2294 2295 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: 2296 ibdev->ib_active = false; 2297 ibev.event = IB_EVENT_DEVICE_FATAL; 2298 break; 2299 2300 case MLX4_DEV_EVENT_PORT_MGMT_CHANGE: 2301 ew = kmalloc(sizeof *ew, GFP_ATOMIC); 2302 if (!ew) { 2303 pr_err("failed to allocate memory for events work\n"); 2304 break; 2305 } 2306 2307 INIT_WORK(&ew->work, handle_port_mgmt_change_event); 2308 memcpy(&ew->ib_eqe, eqe, sizeof *eqe); 2309 ew->ib_dev = ibdev; 2310 /* need to queue only for port owner, which uses GEN_EQE */ 2311 if (mlx4_is_master(dev)) 2312 queue_work(wq, &ew->work); 2313 else 2314 handle_port_mgmt_change_event(&ew->work); 2315 return; 2316 2317 case MLX4_DEV_EVENT_SLAVE_INIT: 2318 /* here, p is the slave id */ 2319 do_slave_init(ibdev, p, 1); 2320 return; 2321 2322 case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: 2323 /* here, p is the slave id */ 2324 do_slave_init(ibdev, p, 0); 2325 return; 2326 2327 default: 2328 return; 2329 } 2330 2331 ibev.device = ibdev_ptr; 2332 ibev.element.port_num = (u8) p; 2333 2334 ib_dispatch_event(&ibev); 2335} 2336 2337static struct mlx4_interface mlx4_ib_interface = { 2338 .add = mlx4_ib_add, 2339 .remove = mlx4_ib_remove, 2340 .event = mlx4_ib_event, 2341 .protocol = MLX4_PROT_IB_IPV6 2342}; 2343 2344static int __init mlx4_ib_init(void) 2345{ 2346 int err; 2347 2348 wq = create_singlethread_workqueue("mlx4_ib"); 2349 if (!wq) 2350 return -ENOMEM; 2351 2352#ifdef __linux__ 2353 err = mlx4_ib_proc_init(); 2354 if (err) 2355 goto clean_wq; 2356#endif 2357 2358 err = mlx4_ib_mcg_init(); 2359 if (err) 2360 goto clean_proc; 2361 2362 init_dev_assign(); 2363 2364 err = mlx4_register_interface(&mlx4_ib_interface); 2365 if (err) 2366 goto clean_mcg; 2367 2368 return 0; 2369 2370clean_mcg: 2371 mlx4_ib_mcg_destroy(); 2372 2373clean_proc: 2374#ifdef __linux__ 2375 remove_proc_entry(MLX4_IB_MRS_PROC_DIR_NAME, 2376 mlx4_ib_driver_dir_entry); 2377 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, NULL); 2378 2379clean_wq: 2380#endif 2381 destroy_workqueue(wq); 2382 return err; 2383} 2384 2385static void __exit mlx4_ib_cleanup(void) 2386{ 2387 mlx4_unregister_interface(&mlx4_ib_interface); 2388 mlx4_ib_mcg_destroy(); 2389 destroy_workqueue(wq); 2390 2391 /* Remove proc entries */ 2392#ifdef __linux__ 2393 remove_proc_entry(MLX4_IB_MRS_PROC_DIR_NAME, 2394 mlx4_ib_driver_dir_entry); 2395 remove_proc_entry(MLX4_IB_DRIVER_PROC_DIR_NAME, NULL); 2396#endif 2397 2398} 2399 2400module_init_order(mlx4_ib_init, SI_ORDER_MIDDLE); 2401module_exit(mlx4_ib_cleanup); 2402 2403#undef MODULE_VERSION 2404#include <sys/module.h> 2405static int 2406mlx4ib_evhand(module_t mod, int event, void *arg) 2407{ 2408 return (0); 2409} 2410 2411static moduledata_t mlx4ib_mod = { 2412 .name = "mlx4ib", 2413 .evhand = mlx4ib_evhand, 2414}; 2415 2416DECLARE_MODULE(mlx4ib, mlx4ib_mod, SI_SUB_OFED_PREINIT, SI_ORDER_ANY); 2417MODULE_DEPEND(mlx4ib, mlx4, 1, 1, 1); 2418MODULE_DEPEND(mlx4ib, ibcore, 1, 1, 1); 2419