Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. |
| 3 | * |
| 4 | * This software is available to you under a choice of one of two |
| 5 | * licenses. You may choose to be licensed under the terms of the GNU |
| 6 | * General Public License (GPL) Version 2, available from the file |
| 7 | * COPYING in the main directory of this source tree, or the |
| 8 | * OpenIB.org BSD license below: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 18 | * - Redistributions in binary form must reproduce the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer in the documentation and/or other materials |
| 21 | * provided with the distribution. |
| 22 | * |
| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 30 | * SOFTWARE. |
| 31 | */ |
| 32 | |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/errno.h> |
| 36 | |
| 37 | #include <rdma/ib_smi.h> |
| 38 | #include <rdma/ib_user_verbs.h> |
| 39 | |
| 40 | #include <linux/mlx4/driver.h> |
| 41 | #include <linux/mlx4/cmd.h> |
| 42 | |
| 43 | #include "mlx4_ib.h" |
| 44 | #include "user.h" |
| 45 | |
| 46 | #define DRV_NAME "mlx4_ib" |
| 47 | #define DRV_VERSION "0.01" |
| 48 | #define DRV_RELDATE "May 1, 2006" |
| 49 | |
| 50 | MODULE_AUTHOR("Roland Dreier"); |
| 51 | MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); |
| 52 | MODULE_LICENSE("Dual BSD/GPL"); |
| 53 | MODULE_VERSION(DRV_VERSION); |
| 54 | |
| 55 | static const char mlx4_ib_version[] __devinitdata = |
| 56 | DRV_NAME ": Mellanox ConnectX InfiniBand driver v" |
| 57 | DRV_VERSION " (" DRV_RELDATE ")\n"; |
| 58 | |
| 59 | static void init_query_mad(struct ib_smp *mad) |
| 60 | { |
| 61 | mad->base_version = 1; |
| 62 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 63 | mad->class_version = 1; |
| 64 | mad->method = IB_MGMT_METHOD_GET; |
| 65 | } |
| 66 | |
| 67 | static int mlx4_ib_query_device(struct ib_device *ibdev, |
| 68 | struct ib_device_attr *props) |
| 69 | { |
| 70 | struct mlx4_ib_dev *dev = to_mdev(ibdev); |
| 71 | struct ib_smp *in_mad = NULL; |
| 72 | struct ib_smp *out_mad = NULL; |
| 73 | int err = -ENOMEM; |
| 74 | |
| 75 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 76 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 77 | if (!in_mad || !out_mad) |
| 78 | goto out; |
| 79 | |
| 80 | init_query_mad(in_mad); |
| 81 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
| 82 | |
| 83 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| 84 | if (err) |
| 85 | goto out; |
| 86 | |
| 87 | memset(props, 0, sizeof *props); |
| 88 | |
| 89 | props->fw_ver = dev->dev->caps.fw_ver; |
| 90 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
| 91 | IB_DEVICE_PORT_ACTIVE_EVENT | |
| 92 | IB_DEVICE_SYS_IMAGE_GUID | |
| 93 | IB_DEVICE_RC_RNR_NAK_GEN; |
| 94 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
| 95 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
| 96 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) |
| 97 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
| 98 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) |
| 99 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
| 100 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) |
| 101 | props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; |
| 102 | |
| 103 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
| 104 | 0xffffff; |
| 105 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
| 106 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
| 107 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
| 108 | |
| 109 | props->max_mr_size = ~0ull; |
| 110 | props->page_size_cap = dev->dev->caps.page_size_cap; |
| 111 | props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; |
| 112 | props->max_qp_wr = dev->dev->caps.max_wqes; |
| 113 | props->max_sge = min(dev->dev->caps.max_sq_sg, |
| 114 | dev->dev->caps.max_rq_sg); |
| 115 | props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; |
| 116 | props->max_cqe = dev->dev->caps.max_cqes; |
| 117 | props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; |
| 118 | props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; |
| 119 | props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; |
| 120 | props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; |
| 121 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
| 122 | props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; |
Jack Morgenstein | c8681f1 | 2007-06-21 13:39:10 -0700 | [diff] [blame] | 123 | props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 124 | props->max_srq_sge = dev->dev->caps.max_srq_sge; |
| 125 | props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; |
| 126 | props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? |
| 127 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
Roland Dreier | 5ae2a7a | 2007-06-18 08:15:02 -0700 | [diff] [blame] | 128 | props->max_pkeys = dev->dev->caps.pkey_table_len[1]; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 129 | props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; |
| 130 | props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; |
| 131 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
| 132 | props->max_mcast_grp; |
| 133 | props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; |
| 134 | |
| 135 | out: |
| 136 | kfree(in_mad); |
| 137 | kfree(out_mad); |
| 138 | |
| 139 | return err; |
| 140 | } |
| 141 | |
| 142 | static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, |
| 143 | struct ib_port_attr *props) |
| 144 | { |
| 145 | struct ib_smp *in_mad = NULL; |
| 146 | struct ib_smp *out_mad = NULL; |
| 147 | int err = -ENOMEM; |
| 148 | |
| 149 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 150 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 151 | if (!in_mad || !out_mad) |
| 152 | goto out; |
| 153 | |
| 154 | memset(props, 0, sizeof *props); |
| 155 | |
| 156 | init_query_mad(in_mad); |
| 157 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 158 | in_mad->attr_mod = cpu_to_be32(port); |
| 159 | |
| 160 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| 161 | if (err) |
| 162 | goto out; |
| 163 | |
| 164 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
| 165 | props->lmc = out_mad->data[34] & 0x7; |
| 166 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
| 167 | props->sm_sl = out_mad->data[36] & 0xf; |
| 168 | props->state = out_mad->data[32] & 0xf; |
| 169 | props->phys_state = out_mad->data[33] >> 4; |
| 170 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
Roland Dreier | 5ae2a7a | 2007-06-18 08:15:02 -0700 | [diff] [blame] | 171 | props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; |
Dotan Barak | 149983af | 2007-06-26 15:55:28 +0300 | [diff] [blame] | 172 | props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; |
Roland Dreier | 5ae2a7a | 2007-06-18 08:15:02 -0700 | [diff] [blame] | 173 | props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 174 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
| 175 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
| 176 | props->active_width = out_mad->data[31] & 0xf; |
| 177 | props->active_speed = out_mad->data[35] >> 4; |
| 178 | props->max_mtu = out_mad->data[41] & 0xf; |
| 179 | props->active_mtu = out_mad->data[36] >> 4; |
| 180 | props->subnet_timeout = out_mad->data[51] & 0x1f; |
| 181 | props->max_vl_num = out_mad->data[37] >> 4; |
| 182 | props->init_type_reply = out_mad->data[41] >> 4; |
| 183 | |
| 184 | out: |
| 185 | kfree(in_mad); |
| 186 | kfree(out_mad); |
| 187 | |
| 188 | return err; |
| 189 | } |
| 190 | |
| 191 | static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
| 192 | union ib_gid *gid) |
| 193 | { |
| 194 | struct ib_smp *in_mad = NULL; |
| 195 | struct ib_smp *out_mad = NULL; |
| 196 | int err = -ENOMEM; |
| 197 | |
| 198 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 199 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 200 | if (!in_mad || !out_mad) |
| 201 | goto out; |
| 202 | |
| 203 | init_query_mad(in_mad); |
| 204 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 205 | in_mad->attr_mod = cpu_to_be32(port); |
| 206 | |
| 207 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| 208 | if (err) |
| 209 | goto out; |
| 210 | |
| 211 | memcpy(gid->raw, out_mad->data + 8, 8); |
| 212 | |
| 213 | init_query_mad(in_mad); |
| 214 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; |
| 215 | in_mad->attr_mod = cpu_to_be32(index / 8); |
| 216 | |
| 217 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| 218 | if (err) |
| 219 | goto out; |
| 220 | |
| 221 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); |
| 222 | |
| 223 | out: |
| 224 | kfree(in_mad); |
| 225 | kfree(out_mad); |
| 226 | return err; |
| 227 | } |
| 228 | |
| 229 | static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
| 230 | u16 *pkey) |
| 231 | { |
| 232 | struct ib_smp *in_mad = NULL; |
| 233 | struct ib_smp *out_mad = NULL; |
| 234 | int err = -ENOMEM; |
| 235 | |
| 236 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 237 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 238 | if (!in_mad || !out_mad) |
| 239 | goto out; |
| 240 | |
| 241 | init_query_mad(in_mad); |
| 242 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; |
| 243 | in_mad->attr_mod = cpu_to_be32(index / 32); |
| 244 | |
| 245 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); |
| 246 | if (err) |
| 247 | goto out; |
| 248 | |
| 249 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
| 250 | |
| 251 | out: |
| 252 | kfree(in_mad); |
| 253 | kfree(out_mad); |
| 254 | return err; |
| 255 | } |
| 256 | |
| 257 | static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, |
| 258 | struct ib_device_modify *props) |
| 259 | { |
| 260 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) |
| 261 | return -EOPNOTSUPP; |
| 262 | |
| 263 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { |
| 264 | spin_lock(&to_mdev(ibdev)->sm_lock); |
| 265 | memcpy(ibdev->node_desc, props->node_desc, 64); |
| 266 | spin_unlock(&to_mdev(ibdev)->sm_lock); |
| 267 | } |
| 268 | |
| 269 | return 0; |
| 270 | } |
| 271 | |
| 272 | static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, |
| 273 | u32 cap_mask) |
| 274 | { |
| 275 | struct mlx4_cmd_mailbox *mailbox; |
| 276 | int err; |
| 277 | |
| 278 | mailbox = mlx4_alloc_cmd_mailbox(dev->dev); |
| 279 | if (IS_ERR(mailbox)) |
| 280 | return PTR_ERR(mailbox); |
| 281 | |
| 282 | memset(mailbox->buf, 0, 256); |
Roland Dreier | 5ae2a7a | 2007-06-18 08:15:02 -0700 | [diff] [blame] | 283 | |
| 284 | if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { |
| 285 | *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; |
| 286 | ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); |
| 287 | } else { |
| 288 | ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; |
| 289 | ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); |
| 290 | } |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 291 | |
| 292 | err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, |
| 293 | MLX4_CMD_TIME_CLASS_B); |
| 294 | |
| 295 | mlx4_free_cmd_mailbox(dev->dev, mailbox); |
| 296 | return err; |
| 297 | } |
| 298 | |
| 299 | static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, |
| 300 | struct ib_port_modify *props) |
| 301 | { |
| 302 | struct ib_port_attr attr; |
| 303 | u32 cap_mask; |
| 304 | int err; |
| 305 | |
| 306 | mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); |
| 307 | |
| 308 | err = mlx4_ib_query_port(ibdev, port, &attr); |
| 309 | if (err) |
| 310 | goto out; |
| 311 | |
| 312 | cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & |
| 313 | ~props->clr_port_cap_mask; |
| 314 | |
| 315 | err = mlx4_SET_PORT(to_mdev(ibdev), port, |
| 316 | !!(mask & IB_PORT_RESET_QKEY_CNTR), |
| 317 | cap_mask); |
| 318 | |
| 319 | out: |
| 320 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
| 321 | return err; |
| 322 | } |
| 323 | |
| 324 | static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, |
| 325 | struct ib_udata *udata) |
| 326 | { |
| 327 | struct mlx4_ib_dev *dev = to_mdev(ibdev); |
| 328 | struct mlx4_ib_ucontext *context; |
| 329 | struct mlx4_ib_alloc_ucontext_resp resp; |
| 330 | int err; |
| 331 | |
| 332 | resp.qp_tab_size = dev->dev->caps.num_qps; |
| 333 | resp.bf_reg_size = dev->dev->caps.bf_reg_size; |
| 334 | resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; |
| 335 | |
| 336 | context = kmalloc(sizeof *context, GFP_KERNEL); |
| 337 | if (!context) |
| 338 | return ERR_PTR(-ENOMEM); |
| 339 | |
| 340 | err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); |
| 341 | if (err) { |
| 342 | kfree(context); |
| 343 | return ERR_PTR(err); |
| 344 | } |
| 345 | |
| 346 | INIT_LIST_HEAD(&context->db_page_list); |
| 347 | mutex_init(&context->db_page_mutex); |
| 348 | |
| 349 | err = ib_copy_to_udata(udata, &resp, sizeof resp); |
| 350 | if (err) { |
| 351 | mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); |
| 352 | kfree(context); |
| 353 | return ERR_PTR(-EFAULT); |
| 354 | } |
| 355 | |
| 356 | return &context->ibucontext; |
| 357 | } |
| 358 | |
| 359 | static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) |
| 360 | { |
| 361 | struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); |
| 362 | |
| 363 | mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); |
| 364 | kfree(context); |
| 365 | |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) |
| 370 | { |
| 371 | struct mlx4_ib_dev *dev = to_mdev(context->device); |
| 372 | |
| 373 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
| 374 | return -EINVAL; |
| 375 | |
| 376 | if (vma->vm_pgoff == 0) { |
| 377 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| 378 | |
| 379 | if (io_remap_pfn_range(vma, vma->vm_start, |
| 380 | to_mucontext(context)->uar.pfn, |
| 381 | PAGE_SIZE, vma->vm_page_prot)) |
| 382 | return -EAGAIN; |
| 383 | } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { |
| 384 | /* FIXME want pgprot_writecombine() for BlueFlame pages */ |
| 385 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| 386 | |
| 387 | if (io_remap_pfn_range(vma, vma->vm_start, |
| 388 | to_mucontext(context)->uar.pfn + |
| 389 | dev->dev->caps.num_uars, |
| 390 | PAGE_SIZE, vma->vm_page_prot)) |
| 391 | return -EAGAIN; |
| 392 | } else |
| 393 | return -EINVAL; |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, |
| 399 | struct ib_ucontext *context, |
| 400 | struct ib_udata *udata) |
| 401 | { |
| 402 | struct mlx4_ib_pd *pd; |
| 403 | int err; |
| 404 | |
| 405 | pd = kmalloc(sizeof *pd, GFP_KERNEL); |
| 406 | if (!pd) |
| 407 | return ERR_PTR(-ENOMEM); |
| 408 | |
| 409 | err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); |
| 410 | if (err) { |
| 411 | kfree(pd); |
| 412 | return ERR_PTR(err); |
| 413 | } |
| 414 | |
| 415 | if (context) |
| 416 | if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { |
| 417 | mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); |
| 418 | kfree(pd); |
| 419 | return ERR_PTR(-EFAULT); |
| 420 | } |
| 421 | |
| 422 | return &pd->ibpd; |
| 423 | } |
| 424 | |
| 425 | static int mlx4_ib_dealloc_pd(struct ib_pd *pd) |
| 426 | { |
| 427 | mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); |
| 428 | kfree(pd); |
| 429 | |
| 430 | return 0; |
| 431 | } |
| 432 | |
| 433 | static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| 434 | { |
| 435 | return mlx4_multicast_attach(to_mdev(ibqp->device)->dev, |
| 436 | &to_mqp(ibqp)->mqp, gid->raw); |
| 437 | } |
| 438 | |
| 439 | static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| 440 | { |
| 441 | return mlx4_multicast_detach(to_mdev(ibqp->device)->dev, |
| 442 | &to_mqp(ibqp)->mqp, gid->raw); |
| 443 | } |
| 444 | |
| 445 | static int init_node_data(struct mlx4_ib_dev *dev) |
| 446 | { |
| 447 | struct ib_smp *in_mad = NULL; |
| 448 | struct ib_smp *out_mad = NULL; |
| 449 | int err = -ENOMEM; |
| 450 | |
| 451 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 452 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 453 | if (!in_mad || !out_mad) |
| 454 | goto out; |
| 455 | |
| 456 | init_query_mad(in_mad); |
| 457 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; |
| 458 | |
| 459 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| 460 | if (err) |
| 461 | goto out; |
| 462 | |
| 463 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); |
| 464 | |
| 465 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
| 466 | |
| 467 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); |
| 468 | if (err) |
| 469 | goto out; |
| 470 | |
| 471 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
| 472 | |
| 473 | out: |
| 474 | kfree(in_mad); |
| 475 | kfree(out_mad); |
| 476 | return err; |
| 477 | } |
| 478 | |
Jack Morgenstein | cd9281d | 2007-09-18 09:14:18 +0200 | [diff] [blame] | 479 | static ssize_t show_hca(struct class_device *cdev, char *buf) |
| 480 | { |
| 481 | struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); |
| 482 | return sprintf(buf, "MT%d\n", dev->dev->pdev->device); |
| 483 | } |
| 484 | |
| 485 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) |
| 486 | { |
| 487 | struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); |
| 488 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), |
| 489 | (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, |
| 490 | (int) dev->dev->caps.fw_ver & 0xffff); |
| 491 | } |
| 492 | |
| 493 | static ssize_t show_rev(struct class_device *cdev, char *buf) |
| 494 | { |
| 495 | struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); |
| 496 | return sprintf(buf, "%x\n", dev->dev->rev_id); |
| 497 | } |
| 498 | |
| 499 | static ssize_t show_board(struct class_device *cdev, char *buf) |
| 500 | { |
| 501 | struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); |
| 502 | return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id); |
| 503 | } |
| 504 | |
| 505 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| 506 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); |
| 507 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
| 508 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
| 509 | |
| 510 | static struct class_device_attribute *mlx4_class_attributes[] = { |
| 511 | &class_device_attr_hw_rev, |
| 512 | &class_device_attr_fw_ver, |
| 513 | &class_device_attr_hca_type, |
| 514 | &class_device_attr_board_id |
| 515 | }; |
| 516 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 517 | static void *mlx4_ib_add(struct mlx4_dev *dev) |
| 518 | { |
| 519 | struct mlx4_ib_dev *ibdev; |
Jack Morgenstein | cd9281d | 2007-09-18 09:14:18 +0200 | [diff] [blame] | 520 | int i; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 521 | |
| 522 | ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); |
| 523 | if (!ibdev) { |
| 524 | dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); |
| 525 | return NULL; |
| 526 | } |
| 527 | |
| 528 | if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) |
| 529 | goto err_dealloc; |
| 530 | |
| 531 | if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) |
| 532 | goto err_pd; |
| 533 | |
| 534 | ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); |
| 535 | if (!ibdev->uar_map) |
| 536 | goto err_uar; |
Jack Morgenstein | 26c6bc7 | 2007-05-13 17:18:23 +0300 | [diff] [blame] | 537 | MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 538 | |
| 539 | INIT_LIST_HEAD(&ibdev->pgdir_list); |
| 540 | mutex_init(&ibdev->pgdir_mutex); |
| 541 | |
| 542 | ibdev->dev = dev; |
| 543 | |
| 544 | strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); |
| 545 | ibdev->ib_dev.owner = THIS_MODULE; |
| 546 | ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; |
| 547 | ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; |
| 548 | ibdev->ib_dev.num_comp_vectors = 1; |
| 549 | ibdev->ib_dev.dma_device = &dev->pdev->dev; |
| 550 | |
| 551 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; |
| 552 | ibdev->ib_dev.uverbs_cmd_mask = |
| 553 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | |
| 554 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | |
| 555 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | |
| 556 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | |
| 557 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | |
| 558 | (1ull << IB_USER_VERBS_CMD_REG_MR) | |
| 559 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
| 560 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | |
| 561 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | |
| 562 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
| 563 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | |
| 564 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
Jack Morgenstein | 6a775e2 | 2007-06-21 12:27:47 +0300 | [diff] [blame] | 565 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 566 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
| 567 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | |
| 568 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | |
| 569 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | |
| 570 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | |
Jack Morgenstein | 65541cb | 2007-06-21 13:03:11 +0300 | [diff] [blame] | 571 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 572 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
| 573 | |
| 574 | ibdev->ib_dev.query_device = mlx4_ib_query_device; |
| 575 | ibdev->ib_dev.query_port = mlx4_ib_query_port; |
| 576 | ibdev->ib_dev.query_gid = mlx4_ib_query_gid; |
| 577 | ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; |
| 578 | ibdev->ib_dev.modify_device = mlx4_ib_modify_device; |
| 579 | ibdev->ib_dev.modify_port = mlx4_ib_modify_port; |
| 580 | ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; |
| 581 | ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; |
| 582 | ibdev->ib_dev.mmap = mlx4_ib_mmap; |
| 583 | ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; |
| 584 | ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; |
| 585 | ibdev->ib_dev.create_ah = mlx4_ib_create_ah; |
| 586 | ibdev->ib_dev.query_ah = mlx4_ib_query_ah; |
| 587 | ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; |
| 588 | ibdev->ib_dev.create_srq = mlx4_ib_create_srq; |
| 589 | ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; |
Jack Morgenstein | 65541cb | 2007-06-21 13:03:11 +0300 | [diff] [blame] | 590 | ibdev->ib_dev.query_srq = mlx4_ib_query_srq; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 591 | ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; |
| 592 | ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; |
| 593 | ibdev->ib_dev.create_qp = mlx4_ib_create_qp; |
| 594 | ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; |
Jack Morgenstein | 6a775e2 | 2007-06-21 12:27:47 +0300 | [diff] [blame] | 595 | ibdev->ib_dev.query_qp = mlx4_ib_query_qp; |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 596 | ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; |
| 597 | ibdev->ib_dev.post_send = mlx4_ib_post_send; |
| 598 | ibdev->ib_dev.post_recv = mlx4_ib_post_recv; |
| 599 | ibdev->ib_dev.create_cq = mlx4_ib_create_cq; |
| 600 | ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; |
| 601 | ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; |
| 602 | ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; |
| 603 | ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; |
| 604 | ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; |
| 605 | ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; |
| 606 | ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; |
| 607 | ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; |
| 608 | ibdev->ib_dev.process_mad = mlx4_ib_process_mad; |
| 609 | |
Jack Morgenstein | 8ad11fb | 2007-08-01 12:29:05 +0300 | [diff] [blame] | 610 | ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; |
| 611 | ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; |
| 612 | ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; |
| 613 | ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; |
| 614 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 615 | if (init_node_data(ibdev)) |
| 616 | goto err_map; |
| 617 | |
| 618 | spin_lock_init(&ibdev->sm_lock); |
| 619 | mutex_init(&ibdev->cap_mask_mutex); |
| 620 | |
| 621 | if (ib_register_device(&ibdev->ib_dev)) |
| 622 | goto err_map; |
| 623 | |
| 624 | if (mlx4_ib_mad_init(ibdev)) |
| 625 | goto err_reg; |
| 626 | |
Jack Morgenstein | cd9281d | 2007-09-18 09:14:18 +0200 | [diff] [blame] | 627 | for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) { |
| 628 | if (class_device_create_file(&ibdev->ib_dev.class_dev, |
| 629 | mlx4_class_attributes[i])) |
| 630 | goto err_reg; |
| 631 | } |
| 632 | |
Roland Dreier | 225c7b1 | 2007-05-08 18:00:38 -0700 | [diff] [blame] | 633 | return ibdev; |
| 634 | |
| 635 | err_reg: |
| 636 | ib_unregister_device(&ibdev->ib_dev); |
| 637 | |
| 638 | err_map: |
| 639 | iounmap(ibdev->uar_map); |
| 640 | |
| 641 | err_uar: |
| 642 | mlx4_uar_free(dev, &ibdev->priv_uar); |
| 643 | |
| 644 | err_pd: |
| 645 | mlx4_pd_free(dev, ibdev->priv_pdn); |
| 646 | |
| 647 | err_dealloc: |
| 648 | ib_dealloc_device(&ibdev->ib_dev); |
| 649 | |
| 650 | return NULL; |
| 651 | } |
| 652 | |
| 653 | static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) |
| 654 | { |
| 655 | struct mlx4_ib_dev *ibdev = ibdev_ptr; |
| 656 | int p; |
| 657 | |
| 658 | for (p = 1; p <= dev->caps.num_ports; ++p) |
| 659 | mlx4_CLOSE_PORT(dev, p); |
| 660 | |
| 661 | mlx4_ib_mad_cleanup(ibdev); |
| 662 | ib_unregister_device(&ibdev->ib_dev); |
| 663 | iounmap(ibdev->uar_map); |
| 664 | mlx4_uar_free(dev, &ibdev->priv_uar); |
| 665 | mlx4_pd_free(dev, ibdev->priv_pdn); |
| 666 | ib_dealloc_device(&ibdev->ib_dev); |
| 667 | } |
| 668 | |
| 669 | static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, |
| 670 | enum mlx4_dev_event event, int subtype, |
| 671 | int port) |
| 672 | { |
| 673 | struct ib_event ibev; |
| 674 | |
| 675 | switch (event) { |
| 676 | case MLX4_EVENT_TYPE_PORT_CHANGE: |
| 677 | ibev.event = subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ? |
| 678 | IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; |
| 679 | break; |
| 680 | |
| 681 | case MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR: |
| 682 | ibev.event = IB_EVENT_DEVICE_FATAL; |
| 683 | break; |
| 684 | |
| 685 | default: |
| 686 | return; |
| 687 | } |
| 688 | |
| 689 | ibev.device = ibdev_ptr; |
| 690 | ibev.element.port_num = port; |
| 691 | |
| 692 | ib_dispatch_event(&ibev); |
| 693 | } |
| 694 | |
| 695 | static struct mlx4_interface mlx4_ib_interface = { |
| 696 | .add = mlx4_ib_add, |
| 697 | .remove = mlx4_ib_remove, |
| 698 | .event = mlx4_ib_event |
| 699 | }; |
| 700 | |
| 701 | static int __init mlx4_ib_init(void) |
| 702 | { |
| 703 | return mlx4_register_interface(&mlx4_ib_interface); |
| 704 | } |
| 705 | |
| 706 | static void __exit mlx4_ib_cleanup(void) |
| 707 | { |
| 708 | mlx4_unregister_interface(&mlx4_ib_interface); |
| 709 | } |
| 710 | |
| 711 | module_init(mlx4_ib_init); |
| 712 | module_exit(mlx4_ib_cleanup); |