Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
Tom Duffy | cd4e8fb | 2005-06-27 14:36:37 -0700 | [diff] [blame] | 3 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 4 | * Copyright (c) 2005 Cisco Systems. All rights reserved. |
Roland Dreier | 2a1d9b7 | 2005-08-10 23:03:10 -0700 | [diff] [blame] | 5 | * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
| 6 | * Copyright (c) 2004 Voltaire, Inc. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * This software is available to you under a choice of one of two |
| 9 | * licenses. You may choose to be licensed under the terms of the GNU |
| 10 | * General Public License (GPL) Version 2, available from the file |
| 11 | * COPYING in the main directory of this source tree, or the |
| 12 | * OpenIB.org BSD license below: |
| 13 | * |
| 14 | * Redistribution and use in source and binary forms, with or |
| 15 | * without modification, are permitted provided that the following |
| 16 | * conditions are met: |
| 17 | * |
| 18 | * - Redistributions of source code must retain the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer. |
| 21 | * |
| 22 | * - Redistributions in binary form must reproduce the above |
| 23 | * copyright notice, this list of conditions and the following |
| 24 | * disclaimer in the documentation and/or other materials |
| 25 | * provided with the distribution. |
| 26 | * |
| 27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 28 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 29 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 30 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 31 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 32 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 33 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 34 | * SOFTWARE. |
| 35 | * |
| 36 | * $Id: mthca_provider.c 1397 2004-12-28 05:09:00Z roland $ |
| 37 | */ |
| 38 | |
Roland Dreier | a4d61e8 | 2005-08-25 13:40:04 -0700 | [diff] [blame] | 39 | #include <rdma/ib_smi.h> |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 40 | #include <rdma/ib_user_verbs.h> |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 41 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | #include "mthca_dev.h" |
| 44 | #include "mthca_cmd.h" |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 45 | #include "mthca_user.h" |
| 46 | #include "mthca_memfree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | static int mthca_query_device(struct ib_device *ibdev, |
| 49 | struct ib_device_attr *props) |
| 50 | { |
| 51 | struct ib_smp *in_mad = NULL; |
| 52 | struct ib_smp *out_mad = NULL; |
| 53 | int err = -ENOMEM; |
| 54 | struct mthca_dev* mdev = to_mdev(ibdev); |
| 55 | |
| 56 | u8 status; |
| 57 | |
| 58 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 59 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 60 | if (!in_mad || !out_mad) |
| 61 | goto out; |
| 62 | |
Roland Dreier | a852092 | 2005-06-27 14:36:42 -0700 | [diff] [blame] | 63 | memset(props, 0, sizeof *props); |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | props->fw_ver = mdev->fw_ver; |
| 66 | |
| 67 | memset(in_mad, 0, sizeof *in_mad); |
| 68 | in_mad->base_version = 1; |
| 69 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 70 | in_mad->class_version = 1; |
| 71 | in_mad->method = IB_MGMT_METHOD_GET; |
| 72 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
| 73 | |
| 74 | err = mthca_MAD_IFC(mdev, 1, 1, |
| 75 | 1, NULL, NULL, in_mad, out_mad, |
| 76 | &status); |
| 77 | if (err) |
| 78 | goto out; |
| 79 | if (status) { |
| 80 | err = -EINVAL; |
| 81 | goto out; |
| 82 | } |
| 83 | |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 84 | props->device_cap_flags = mdev->device_cap_flags; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 85 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | 0xffffff; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 87 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
Jack Morgenstein | a1c337a | 2005-09-27 13:54:44 -0700 | [diff] [blame] | 88 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
| 90 | memcpy(&props->node_guid, out_mad->data + 12, 8); |
| 91 | |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 92 | props->max_mr_size = ~0ull; |
| 93 | props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 94 | props->max_qp_wr = mdev->limits.max_wqes; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 95 | props->max_sge = mdev->limits.max_sg; |
| 96 | props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 97 | props->max_cqe = mdev->limits.max_cqes; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 98 | props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; |
| 99 | props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; |
| 100 | props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 101 | props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; |
| 102 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
| 103 | props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; |
| 104 | props->max_srq_wr = mdev->limits.max_srq_wqes; |
| 105 | props->max_srq_sge = mdev->limits.max_sg; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 106 | props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; |
Jack Morgenstein | 33033b7 | 2005-09-26 12:30:02 -0700 | [diff] [blame] | 107 | props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? |
| 108 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 109 | props->max_pkeys = mdev->limits.pkey_table_len; |
| 110 | props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; |
| 111 | props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; |
| 112 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
| 113 | props->max_mcast_grp; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | err = 0; |
| 116 | out: |
| 117 | kfree(in_mad); |
| 118 | kfree(out_mad); |
| 119 | return err; |
| 120 | } |
| 121 | |
| 122 | static int mthca_query_port(struct ib_device *ibdev, |
| 123 | u8 port, struct ib_port_attr *props) |
| 124 | { |
| 125 | struct ib_smp *in_mad = NULL; |
| 126 | struct ib_smp *out_mad = NULL; |
| 127 | int err = -ENOMEM; |
| 128 | u8 status; |
| 129 | |
| 130 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 131 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 132 | if (!in_mad || !out_mad) |
| 133 | goto out; |
| 134 | |
Roland Dreier | d1887ec | 2005-08-18 12:14:11 -0700 | [diff] [blame] | 135 | memset(props, 0, sizeof *props); |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | memset(in_mad, 0, sizeof *in_mad); |
| 138 | in_mad->base_version = 1; |
| 139 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 140 | in_mad->class_version = 1; |
| 141 | in_mad->method = IB_MGMT_METHOD_GET; |
| 142 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 143 | in_mad->attr_mod = cpu_to_be32(port); |
| 144 | |
| 145 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 146 | port, NULL, NULL, in_mad, out_mad, |
| 147 | &status); |
| 148 | if (err) |
| 149 | goto out; |
| 150 | if (status) { |
| 151 | err = -EINVAL; |
| 152 | goto out; |
| 153 | } |
| 154 | |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 155 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | props->lmc = out_mad->data[34] & 0x7; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 157 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | props->sm_sl = out_mad->data[36] & 0xf; |
| 159 | props->state = out_mad->data[32] & 0xf; |
| 160 | props->phys_state = out_mad->data[33] >> 4; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 161 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; |
Roland Dreier | d1887ec | 2005-08-18 12:14:11 -0700 | [diff] [blame] | 163 | props->max_msg_sz = 0x80000000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; |
Jack Morgenstein | 9825051 | 2005-10-01 13:09:44 -0700 | [diff] [blame] | 165 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 166 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | props->active_width = out_mad->data[31] & 0xf; |
| 168 | props->active_speed = out_mad->data[35] >> 4; |
Jack Morgenstein | 9825051 | 2005-10-01 13:09:44 -0700 | [diff] [blame] | 169 | props->max_mtu = out_mad->data[41] & 0xf; |
| 170 | props->active_mtu = out_mad->data[36] >> 4; |
| 171 | props->subnet_timeout = out_mad->data[51] & 0x1f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | out: |
| 174 | kfree(in_mad); |
| 175 | kfree(out_mad); |
| 176 | return err; |
| 177 | } |
| 178 | |
| 179 | static int mthca_modify_port(struct ib_device *ibdev, |
| 180 | u8 port, int port_modify_mask, |
| 181 | struct ib_port_modify *props) |
| 182 | { |
| 183 | struct mthca_set_ib_param set_ib; |
| 184 | struct ib_port_attr attr; |
| 185 | int err; |
| 186 | u8 status; |
| 187 | |
| 188 | if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) |
| 189 | return -ERESTARTSYS; |
| 190 | |
| 191 | err = mthca_query_port(ibdev, port, &attr); |
| 192 | if (err) |
| 193 | goto out; |
| 194 | |
| 195 | set_ib.set_si_guid = 0; |
| 196 | set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); |
| 197 | |
| 198 | set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & |
| 199 | ~props->clr_port_cap_mask; |
| 200 | |
| 201 | err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); |
| 202 | if (err) |
| 203 | goto out; |
| 204 | if (status) { |
| 205 | err = -EINVAL; |
| 206 | goto out; |
| 207 | } |
| 208 | |
| 209 | out: |
| 210 | up(&to_mdev(ibdev)->cap_mask_mutex); |
| 211 | return err; |
| 212 | } |
| 213 | |
| 214 | static int mthca_query_pkey(struct ib_device *ibdev, |
| 215 | u8 port, u16 index, u16 *pkey) |
| 216 | { |
| 217 | struct ib_smp *in_mad = NULL; |
| 218 | struct ib_smp *out_mad = NULL; |
| 219 | int err = -ENOMEM; |
| 220 | u8 status; |
| 221 | |
| 222 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 223 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 224 | if (!in_mad || !out_mad) |
| 225 | goto out; |
| 226 | |
| 227 | memset(in_mad, 0, sizeof *in_mad); |
| 228 | in_mad->base_version = 1; |
| 229 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 230 | in_mad->class_version = 1; |
| 231 | in_mad->method = IB_MGMT_METHOD_GET; |
| 232 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; |
| 233 | in_mad->attr_mod = cpu_to_be32(index / 32); |
| 234 | |
| 235 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 236 | port, NULL, NULL, in_mad, out_mad, |
| 237 | &status); |
| 238 | if (err) |
| 239 | goto out; |
| 240 | if (status) { |
| 241 | err = -EINVAL; |
| 242 | goto out; |
| 243 | } |
| 244 | |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 245 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
| 247 | out: |
| 248 | kfree(in_mad); |
| 249 | kfree(out_mad); |
| 250 | return err; |
| 251 | } |
| 252 | |
| 253 | static int mthca_query_gid(struct ib_device *ibdev, u8 port, |
| 254 | int index, union ib_gid *gid) |
| 255 | { |
| 256 | struct ib_smp *in_mad = NULL; |
| 257 | struct ib_smp *out_mad = NULL; |
| 258 | int err = -ENOMEM; |
| 259 | u8 status; |
| 260 | |
| 261 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 262 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 263 | if (!in_mad || !out_mad) |
| 264 | goto out; |
| 265 | |
| 266 | memset(in_mad, 0, sizeof *in_mad); |
| 267 | in_mad->base_version = 1; |
| 268 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 269 | in_mad->class_version = 1; |
| 270 | in_mad->method = IB_MGMT_METHOD_GET; |
| 271 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 272 | in_mad->attr_mod = cpu_to_be32(port); |
| 273 | |
| 274 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 275 | port, NULL, NULL, in_mad, out_mad, |
| 276 | &status); |
| 277 | if (err) |
| 278 | goto out; |
| 279 | if (status) { |
| 280 | err = -EINVAL; |
| 281 | goto out; |
| 282 | } |
| 283 | |
| 284 | memcpy(gid->raw, out_mad->data + 8, 8); |
| 285 | |
| 286 | memset(in_mad, 0, sizeof *in_mad); |
| 287 | in_mad->base_version = 1; |
| 288 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 289 | in_mad->class_version = 1; |
| 290 | in_mad->method = IB_MGMT_METHOD_GET; |
| 291 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; |
| 292 | in_mad->attr_mod = cpu_to_be32(index / 8); |
| 293 | |
| 294 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 295 | port, NULL, NULL, in_mad, out_mad, |
| 296 | &status); |
| 297 | if (err) |
| 298 | goto out; |
| 299 | if (status) { |
| 300 | err = -EINVAL; |
| 301 | goto out; |
| 302 | } |
| 303 | |
| 304 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8); |
| 305 | |
| 306 | out: |
| 307 | kfree(in_mad); |
| 308 | kfree(out_mad); |
| 309 | return err; |
| 310 | } |
| 311 | |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 312 | static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, |
| 313 | struct ib_udata *udata) |
| 314 | { |
| 315 | struct mthca_alloc_ucontext_resp uresp; |
| 316 | struct mthca_ucontext *context; |
| 317 | int err; |
| 318 | |
| 319 | memset(&uresp, 0, sizeof uresp); |
| 320 | |
| 321 | uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; |
| 322 | if (mthca_is_memfree(to_mdev(ibdev))) |
| 323 | uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; |
| 324 | else |
| 325 | uresp.uarc_size = 0; |
| 326 | |
| 327 | context = kmalloc(sizeof *context, GFP_KERNEL); |
| 328 | if (!context) |
| 329 | return ERR_PTR(-ENOMEM); |
| 330 | |
| 331 | err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); |
| 332 | if (err) { |
| 333 | kfree(context); |
| 334 | return ERR_PTR(err); |
| 335 | } |
| 336 | |
| 337 | context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); |
| 338 | if (IS_ERR(context->db_tab)) { |
| 339 | err = PTR_ERR(context->db_tab); |
| 340 | mthca_uar_free(to_mdev(ibdev), &context->uar); |
| 341 | kfree(context); |
| 342 | return ERR_PTR(err); |
| 343 | } |
| 344 | |
| 345 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { |
| 346 | mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); |
| 347 | mthca_uar_free(to_mdev(ibdev), &context->uar); |
| 348 | kfree(context); |
| 349 | return ERR_PTR(-EFAULT); |
| 350 | } |
| 351 | |
| 352 | return &context->ibucontext; |
| 353 | } |
| 354 | |
| 355 | static int mthca_dealloc_ucontext(struct ib_ucontext *context) |
| 356 | { |
| 357 | mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, |
| 358 | to_mucontext(context)->db_tab); |
| 359 | mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); |
| 360 | kfree(to_mucontext(context)); |
| 361 | |
| 362 | return 0; |
| 363 | } |
| 364 | |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 365 | static int mthca_mmap_uar(struct ib_ucontext *context, |
| 366 | struct vm_area_struct *vma) |
| 367 | { |
| 368 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
| 369 | return -EINVAL; |
| 370 | |
| 371 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| 372 | |
Michael S. Tsirkin | 6d37675 | 2005-07-27 14:42:45 -0700 | [diff] [blame] | 373 | if (io_remap_pfn_range(vma, vma->vm_start, |
| 374 | to_mucontext(context)->uar.pfn, |
| 375 | PAGE_SIZE, vma->vm_page_prot)) |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 376 | return -EAGAIN; |
| 377 | |
| 378 | return 0; |
| 379 | } |
| 380 | |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 381 | static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, |
| 382 | struct ib_ucontext *context, |
| 383 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | { |
| 385 | struct mthca_pd *pd; |
| 386 | int err; |
| 387 | |
| 388 | pd = kmalloc(sizeof *pd, GFP_KERNEL); |
| 389 | if (!pd) |
| 390 | return ERR_PTR(-ENOMEM); |
| 391 | |
Roland Dreier | 99264c1 | 2005-07-07 17:57:18 -0700 | [diff] [blame] | 392 | err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | if (err) { |
| 394 | kfree(pd); |
| 395 | return ERR_PTR(err); |
| 396 | } |
| 397 | |
Roland Dreier | 99264c1 | 2005-07-07 17:57:18 -0700 | [diff] [blame] | 398 | if (context) { |
| 399 | if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { |
| 400 | mthca_pd_free(to_mdev(ibdev), pd); |
| 401 | kfree(pd); |
| 402 | return ERR_PTR(-EFAULT); |
| 403 | } |
| 404 | } |
| 405 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | return &pd->ibpd; |
| 407 | } |
| 408 | |
| 409 | static int mthca_dealloc_pd(struct ib_pd *pd) |
| 410 | { |
| 411 | mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); |
| 412 | kfree(pd); |
| 413 | |
| 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | static struct ib_ah *mthca_ah_create(struct ib_pd *pd, |
| 418 | struct ib_ah_attr *ah_attr) |
| 419 | { |
| 420 | int err; |
| 421 | struct mthca_ah *ah; |
| 422 | |
Roland Dreier | 8df8a34 | 2005-04-16 15:26:26 -0700 | [diff] [blame] | 423 | ah = kmalloc(sizeof *ah, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | if (!ah) |
| 425 | return ERR_PTR(-ENOMEM); |
| 426 | |
| 427 | err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); |
| 428 | if (err) { |
| 429 | kfree(ah); |
| 430 | return ERR_PTR(err); |
| 431 | } |
| 432 | |
| 433 | return &ah->ibah; |
| 434 | } |
| 435 | |
| 436 | static int mthca_ah_destroy(struct ib_ah *ah) |
| 437 | { |
| 438 | mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); |
| 439 | kfree(ah); |
| 440 | |
| 441 | return 0; |
| 442 | } |
| 443 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 444 | static struct ib_srq *mthca_create_srq(struct ib_pd *pd, |
| 445 | struct ib_srq_init_attr *init_attr, |
| 446 | struct ib_udata *udata) |
| 447 | { |
| 448 | struct mthca_create_srq ucmd; |
| 449 | struct mthca_ucontext *context = NULL; |
| 450 | struct mthca_srq *srq; |
| 451 | int err; |
| 452 | |
| 453 | srq = kmalloc(sizeof *srq, GFP_KERNEL); |
| 454 | if (!srq) |
| 455 | return ERR_PTR(-ENOMEM); |
| 456 | |
| 457 | if (pd->uobject) { |
| 458 | context = to_mucontext(pd->uobject->context); |
| 459 | |
| 460 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) |
| 461 | return ERR_PTR(-EFAULT); |
| 462 | |
| 463 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 464 | context->db_tab, ucmd.db_index, |
| 465 | ucmd.db_page); |
| 466 | |
| 467 | if (err) |
| 468 | goto err_free; |
| 469 | |
| 470 | srq->mr.ibmr.lkey = ucmd.lkey; |
| 471 | srq->db_index = ucmd.db_index; |
| 472 | } |
| 473 | |
| 474 | err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), |
| 475 | &init_attr->attr, srq); |
| 476 | |
| 477 | if (err && pd->uobject) |
| 478 | mthca_unmap_user_db(to_mdev(pd->device), &context->uar, |
| 479 | context->db_tab, ucmd.db_index); |
| 480 | |
| 481 | if (err) |
| 482 | goto err_free; |
| 483 | |
| 484 | if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { |
| 485 | mthca_free_srq(to_mdev(pd->device), srq); |
| 486 | err = -EFAULT; |
| 487 | goto err_free; |
| 488 | } |
| 489 | |
| 490 | return &srq->ibsrq; |
| 491 | |
| 492 | err_free: |
| 493 | kfree(srq); |
| 494 | |
| 495 | return ERR_PTR(err); |
| 496 | } |
| 497 | |
| 498 | static int mthca_destroy_srq(struct ib_srq *srq) |
| 499 | { |
| 500 | struct mthca_ucontext *context; |
| 501 | |
| 502 | if (srq->uobject) { |
| 503 | context = to_mucontext(srq->uobject->context); |
| 504 | |
| 505 | mthca_unmap_user_db(to_mdev(srq->device), &context->uar, |
| 506 | context->db_tab, to_msrq(srq)->db_index); |
| 507 | } |
| 508 | |
| 509 | mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); |
| 510 | kfree(srq); |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | static struct ib_qp *mthca_create_qp(struct ib_pd *pd, |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 516 | struct ib_qp_init_attr *init_attr, |
| 517 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 519 | struct mthca_create_qp ucmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | struct mthca_qp *qp; |
| 521 | int err; |
| 522 | |
| 523 | switch (init_attr->qp_type) { |
| 524 | case IB_QPT_RC: |
| 525 | case IB_QPT_UC: |
| 526 | case IB_QPT_UD: |
| 527 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 528 | struct mthca_ucontext *context; |
| 529 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | qp = kmalloc(sizeof *qp, GFP_KERNEL); |
| 531 | if (!qp) |
| 532 | return ERR_PTR(-ENOMEM); |
| 533 | |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 534 | if (pd->uobject) { |
| 535 | context = to_mucontext(pd->uobject->context); |
| 536 | |
| 537 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) |
| 538 | return ERR_PTR(-EFAULT); |
| 539 | |
| 540 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 541 | context->db_tab, |
| 542 | ucmd.sq_db_index, ucmd.sq_db_page); |
| 543 | if (err) { |
| 544 | kfree(qp); |
| 545 | return ERR_PTR(err); |
| 546 | } |
| 547 | |
| 548 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 549 | context->db_tab, |
| 550 | ucmd.rq_db_index, ucmd.rq_db_page); |
| 551 | if (err) { |
| 552 | mthca_unmap_user_db(to_mdev(pd->device), |
| 553 | &context->uar, |
| 554 | context->db_tab, |
| 555 | ucmd.sq_db_index); |
| 556 | kfree(qp); |
| 557 | return ERR_PTR(err); |
| 558 | } |
| 559 | |
| 560 | qp->mr.ibmr.lkey = ucmd.lkey; |
| 561 | qp->sq.db_index = ucmd.sq_db_index; |
| 562 | qp->rq.db_index = ucmd.rq_db_index; |
| 563 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
| 565 | err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), |
| 566 | to_mcq(init_attr->send_cq), |
| 567 | to_mcq(init_attr->recv_cq), |
| 568 | init_attr->qp_type, init_attr->sq_sig_type, |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 569 | &init_attr->cap, qp); |
| 570 | |
| 571 | if (err && pd->uobject) { |
| 572 | context = to_mucontext(pd->uobject->context); |
| 573 | |
| 574 | mthca_unmap_user_db(to_mdev(pd->device), |
| 575 | &context->uar, |
| 576 | context->db_tab, |
| 577 | ucmd.sq_db_index); |
| 578 | mthca_unmap_user_db(to_mdev(pd->device), |
| 579 | &context->uar, |
| 580 | context->db_tab, |
| 581 | ucmd.rq_db_index); |
| 582 | } |
| 583 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | qp->ibqp.qp_num = qp->qpn; |
| 585 | break; |
| 586 | } |
| 587 | case IB_QPT_SMI: |
| 588 | case IB_QPT_GSI: |
| 589 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 590 | /* Don't allow userspace to create special QPs */ |
| 591 | if (pd->uobject) |
| 592 | return ERR_PTR(-EINVAL); |
| 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); |
| 595 | if (!qp) |
| 596 | return ERR_PTR(-ENOMEM); |
| 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; |
| 599 | |
| 600 | err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), |
| 601 | to_mcq(init_attr->send_cq), |
| 602 | to_mcq(init_attr->recv_cq), |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 603 | init_attr->sq_sig_type, &init_attr->cap, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | qp->ibqp.qp_num, init_attr->port_num, |
| 605 | to_msqp(qp)); |
| 606 | break; |
| 607 | } |
| 608 | default: |
| 609 | /* Don't support raw QPs */ |
| 610 | return ERR_PTR(-ENOSYS); |
| 611 | } |
| 612 | |
| 613 | if (err) { |
| 614 | kfree(qp); |
| 615 | return ERR_PTR(err); |
| 616 | } |
| 617 | |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 618 | init_attr->cap.max_inline_data = 0; |
| 619 | init_attr->cap.max_send_wr = qp->sq.max; |
| 620 | init_attr->cap.max_recv_wr = qp->rq.max; |
| 621 | init_attr->cap.max_send_sge = qp->sq.max_gs; |
| 622 | init_attr->cap.max_recv_sge = qp->rq.max_gs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | |
| 624 | return &qp->ibqp; |
| 625 | } |
| 626 | |
| 627 | static int mthca_destroy_qp(struct ib_qp *qp) |
| 628 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 629 | if (qp->uobject) { |
| 630 | mthca_unmap_user_db(to_mdev(qp->device), |
| 631 | &to_mucontext(qp->uobject->context)->uar, |
| 632 | to_mucontext(qp->uobject->context)->db_tab, |
| 633 | to_mqp(qp)->sq.db_index); |
| 634 | mthca_unmap_user_db(to_mdev(qp->device), |
| 635 | &to_mucontext(qp->uobject->context)->uar, |
| 636 | to_mucontext(qp->uobject->context)->db_tab, |
| 637 | to_mqp(qp)->rq.db_index); |
| 638 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); |
| 640 | kfree(qp); |
| 641 | return 0; |
| 642 | } |
| 643 | |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 644 | static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, |
| 645 | struct ib_ucontext *context, |
| 646 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | { |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 648 | struct mthca_create_cq ucmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | struct mthca_cq *cq; |
| 650 | int nent; |
| 651 | int err; |
| 652 | |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 653 | if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) |
| 654 | return ERR_PTR(-EINVAL); |
| 655 | |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 656 | if (context) { |
| 657 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) |
| 658 | return ERR_PTR(-EFAULT); |
| 659 | |
| 660 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 661 | to_mucontext(context)->db_tab, |
| 662 | ucmd.set_db_index, ucmd.set_db_page); |
| 663 | if (err) |
| 664 | return ERR_PTR(err); |
| 665 | |
| 666 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 667 | to_mucontext(context)->db_tab, |
| 668 | ucmd.arm_db_index, ucmd.arm_db_page); |
| 669 | if (err) |
| 670 | goto err_unmap_set; |
| 671 | } |
| 672 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | cq = kmalloc(sizeof *cq, GFP_KERNEL); |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 674 | if (!cq) { |
| 675 | err = -ENOMEM; |
| 676 | goto err_unmap_arm; |
| 677 | } |
| 678 | |
| 679 | if (context) { |
| 680 | cq->mr.ibmr.lkey = ucmd.lkey; |
| 681 | cq->set_ci_db_index = ucmd.set_db_index; |
| 682 | cq->arm_db_index = ucmd.arm_db_index; |
| 683 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
| 685 | for (nent = 1; nent <= entries; nent <<= 1) |
| 686 | ; /* nothing */ |
| 687 | |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 688 | err = mthca_init_cq(to_mdev(ibdev), nent, |
| 689 | context ? to_mucontext(context) : NULL, |
| 690 | context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, |
| 691 | cq); |
| 692 | if (err) |
| 693 | goto err_free; |
| 694 | |
| 695 | if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { |
| 696 | mthca_free_cq(to_mdev(ibdev), cq); |
| 697 | goto err_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | } |
| 699 | |
| 700 | return &cq->ibcq; |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 701 | |
| 702 | err_free: |
| 703 | kfree(cq); |
| 704 | |
| 705 | err_unmap_arm: |
| 706 | if (context) |
| 707 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 708 | to_mucontext(context)->db_tab, ucmd.arm_db_index); |
| 709 | |
| 710 | err_unmap_set: |
| 711 | if (context) |
| 712 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 713 | to_mucontext(context)->db_tab, ucmd.set_db_index); |
| 714 | |
| 715 | return ERR_PTR(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | static int mthca_destroy_cq(struct ib_cq *cq) |
| 719 | { |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 720 | if (cq->uobject) { |
| 721 | mthca_unmap_user_db(to_mdev(cq->device), |
| 722 | &to_mucontext(cq->uobject->context)->uar, |
| 723 | to_mucontext(cq->uobject->context)->db_tab, |
| 724 | to_mcq(cq)->arm_db_index); |
| 725 | mthca_unmap_user_db(to_mdev(cq->device), |
| 726 | &to_mucontext(cq->uobject->context)->uar, |
| 727 | to_mucontext(cq->uobject->context)->db_tab, |
| 728 | to_mcq(cq)->set_ci_db_index); |
| 729 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); |
| 731 | kfree(cq); |
| 732 | |
| 733 | return 0; |
| 734 | } |
| 735 | |
| 736 | static inline u32 convert_access(int acc) |
| 737 | { |
| 738 | return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | |
| 739 | (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | |
| 740 | (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | |
| 741 | (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | |
| 742 | MTHCA_MPT_FLAG_LOCAL_READ; |
| 743 | } |
| 744 | |
| 745 | static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) |
| 746 | { |
| 747 | struct mthca_mr *mr; |
| 748 | int err; |
| 749 | |
| 750 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 751 | if (!mr) |
| 752 | return ERR_PTR(-ENOMEM); |
| 753 | |
| 754 | err = mthca_mr_alloc_notrans(to_mdev(pd->device), |
| 755 | to_mpd(pd)->pd_num, |
| 756 | convert_access(acc), mr); |
| 757 | |
| 758 | if (err) { |
| 759 | kfree(mr); |
| 760 | return ERR_PTR(err); |
| 761 | } |
| 762 | |
| 763 | return &mr->ibmr; |
| 764 | } |
| 765 | |
| 766 | static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, |
| 767 | struct ib_phys_buf *buffer_list, |
| 768 | int num_phys_buf, |
| 769 | int acc, |
| 770 | u64 *iova_start) |
| 771 | { |
| 772 | struct mthca_mr *mr; |
| 773 | u64 *page_list; |
| 774 | u64 total_size; |
| 775 | u64 mask; |
| 776 | int shift; |
| 777 | int npages; |
| 778 | int err; |
| 779 | int i, j, n; |
| 780 | |
| 781 | /* First check that we have enough alignment */ |
| 782 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) |
| 783 | return ERR_PTR(-EINVAL); |
| 784 | |
| 785 | if (num_phys_buf > 1 && |
| 786 | ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) |
| 787 | return ERR_PTR(-EINVAL); |
| 788 | |
| 789 | mask = 0; |
| 790 | total_size = 0; |
| 791 | for (i = 0; i < num_phys_buf; ++i) { |
Michael S. Tsirkin | 72c3029 | 2005-04-16 15:26:16 -0700 | [diff] [blame] | 792 | if (i != 0 && buffer_list[i].addr & ~PAGE_MASK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | return ERR_PTR(-EINVAL); |
| 794 | if (i != 0 && i != num_phys_buf - 1 && |
| 795 | (buffer_list[i].size & ~PAGE_MASK)) |
| 796 | return ERR_PTR(-EINVAL); |
| 797 | |
| 798 | total_size += buffer_list[i].size; |
| 799 | if (i > 0) |
| 800 | mask |= buffer_list[i].addr; |
| 801 | } |
| 802 | |
| 803 | /* Find largest page shift we can use to cover buffers */ |
| 804 | for (shift = PAGE_SHIFT; shift < 31; ++shift) |
| 805 | if (num_phys_buf > 1) { |
| 806 | if ((1ULL << shift) & mask) |
| 807 | break; |
| 808 | } else { |
| 809 | if (1ULL << shift >= |
| 810 | buffer_list[0].size + |
| 811 | (buffer_list[0].addr & ((1ULL << shift) - 1))) |
| 812 | break; |
| 813 | } |
| 814 | |
| 815 | buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); |
| 816 | buffer_list[0].addr &= ~0ull << shift; |
| 817 | |
| 818 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 819 | if (!mr) |
| 820 | return ERR_PTR(-ENOMEM); |
| 821 | |
| 822 | npages = 0; |
| 823 | for (i = 0; i < num_phys_buf; ++i) |
| 824 | npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; |
| 825 | |
| 826 | if (!npages) |
| 827 | return &mr->ibmr; |
| 828 | |
| 829 | page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); |
| 830 | if (!page_list) { |
| 831 | kfree(mr); |
| 832 | return ERR_PTR(-ENOMEM); |
| 833 | } |
| 834 | |
| 835 | n = 0; |
| 836 | for (i = 0; i < num_phys_buf; ++i) |
| 837 | for (j = 0; |
| 838 | j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; |
| 839 | ++j) |
| 840 | page_list[n++] = buffer_list[i].addr + ((u64) j << shift); |
| 841 | |
| 842 | mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " |
| 843 | "in PD %x; shift %d, npages %d.\n", |
| 844 | (unsigned long long) buffer_list[0].addr, |
| 845 | (unsigned long long) *iova_start, |
| 846 | to_mpd(pd)->pd_num, |
| 847 | shift, npages); |
| 848 | |
| 849 | err = mthca_mr_alloc_phys(to_mdev(pd->device), |
| 850 | to_mpd(pd)->pd_num, |
| 851 | page_list, shift, npages, |
| 852 | *iova_start, total_size, |
| 853 | convert_access(acc), mr); |
| 854 | |
| 855 | if (err) { |
Roland Dreier | 761f9eb | 2005-06-27 14:36:44 -0700 | [diff] [blame] | 856 | kfree(page_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | kfree(mr); |
| 858 | return ERR_PTR(err); |
| 859 | } |
| 860 | |
| 861 | kfree(page_list); |
| 862 | return &mr->ibmr; |
| 863 | } |
| 864 | |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 865 | static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, |
| 866 | int acc, struct ib_udata *udata) |
| 867 | { |
| 868 | struct mthca_dev *dev = to_mdev(pd->device); |
| 869 | struct ib_umem_chunk *chunk; |
| 870 | struct mthca_mr *mr; |
| 871 | u64 *pages; |
| 872 | int shift, n, len; |
| 873 | int i, j, k; |
| 874 | int err = 0; |
| 875 | |
| 876 | shift = ffs(region->page_size) - 1; |
| 877 | |
| 878 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 879 | if (!mr) |
| 880 | return ERR_PTR(-ENOMEM); |
| 881 | |
| 882 | n = 0; |
| 883 | list_for_each_entry(chunk, ®ion->chunk_list, list) |
| 884 | n += chunk->nents; |
| 885 | |
| 886 | mr->mtt = mthca_alloc_mtt(dev, n); |
| 887 | if (IS_ERR(mr->mtt)) { |
| 888 | err = PTR_ERR(mr->mtt); |
| 889 | goto err; |
| 890 | } |
| 891 | |
| 892 | pages = (u64 *) __get_free_page(GFP_KERNEL); |
| 893 | if (!pages) { |
| 894 | err = -ENOMEM; |
| 895 | goto err_mtt; |
| 896 | } |
| 897 | |
| 898 | i = n = 0; |
| 899 | |
| 900 | list_for_each_entry(chunk, ®ion->chunk_list, list) |
| 901 | for (j = 0; j < chunk->nmap; ++j) { |
| 902 | len = sg_dma_len(&chunk->page_list[j]) >> shift; |
| 903 | for (k = 0; k < len; ++k) { |
| 904 | pages[i++] = sg_dma_address(&chunk->page_list[j]) + |
| 905 | region->page_size * k; |
| 906 | /* |
| 907 | * Be friendly to WRITE_MTT command |
| 908 | * and leave two empty slots for the |
| 909 | * index and reserved fields of the |
| 910 | * mailbox. |
| 911 | */ |
| 912 | if (i == PAGE_SIZE / sizeof (u64) - 2) { |
| 913 | err = mthca_write_mtt(dev, mr->mtt, |
| 914 | n, pages, i); |
| 915 | if (err) |
| 916 | goto mtt_done; |
| 917 | n += i; |
| 918 | i = 0; |
| 919 | } |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | if (i) |
| 924 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); |
| 925 | mtt_done: |
| 926 | free_page((unsigned long) pages); |
| 927 | if (err) |
| 928 | goto err_mtt; |
| 929 | |
| 930 | err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, region->virt_base, |
| 931 | region->length, convert_access(acc), mr); |
| 932 | |
| 933 | if (err) |
| 934 | goto err_mtt; |
| 935 | |
| 936 | return &mr->ibmr; |
| 937 | |
| 938 | err_mtt: |
| 939 | mthca_free_mtt(dev, mr->mtt); |
| 940 | |
| 941 | err: |
| 942 | kfree(mr); |
| 943 | return ERR_PTR(err); |
| 944 | } |
| 945 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | static int mthca_dereg_mr(struct ib_mr *mr) |
| 947 | { |
Roland Dreier | e464b2a | 2005-04-16 15:26:17 -0700 | [diff] [blame] | 948 | struct mthca_mr *mmr = to_mmr(mr); |
| 949 | mthca_free_mr(to_mdev(mr->device), mmr); |
| 950 | kfree(mmr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | return 0; |
| 952 | } |
| 953 | |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 954 | static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, |
| 955 | struct ib_fmr_attr *fmr_attr) |
| 956 | { |
| 957 | struct mthca_fmr *fmr; |
| 958 | int err; |
| 959 | |
| 960 | fmr = kmalloc(sizeof *fmr, GFP_KERNEL); |
| 961 | if (!fmr) |
| 962 | return ERR_PTR(-ENOMEM); |
| 963 | |
| 964 | memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); |
| 965 | err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, |
| 966 | convert_access(mr_access_flags), fmr); |
| 967 | |
| 968 | if (err) { |
| 969 | kfree(fmr); |
| 970 | return ERR_PTR(err); |
| 971 | } |
| 972 | |
| 973 | return &fmr->ibmr; |
| 974 | } |
| 975 | |
| 976 | static int mthca_dealloc_fmr(struct ib_fmr *fmr) |
| 977 | { |
| 978 | struct mthca_fmr *mfmr = to_mfmr(fmr); |
| 979 | int err; |
| 980 | |
| 981 | err = mthca_free_fmr(to_mdev(fmr->device), mfmr); |
| 982 | if (err) |
| 983 | return err; |
| 984 | |
| 985 | kfree(mfmr); |
| 986 | return 0; |
| 987 | } |
| 988 | |
| 989 | static int mthca_unmap_fmr(struct list_head *fmr_list) |
| 990 | { |
| 991 | struct ib_fmr *fmr; |
| 992 | int err; |
| 993 | u8 status; |
| 994 | struct mthca_dev *mdev = NULL; |
| 995 | |
| 996 | list_for_each_entry(fmr, fmr_list, list) { |
| 997 | if (mdev && to_mdev(fmr->device) != mdev) |
| 998 | return -EINVAL; |
| 999 | mdev = to_mdev(fmr->device); |
| 1000 | } |
| 1001 | |
| 1002 | if (!mdev) |
| 1003 | return 0; |
| 1004 | |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1005 | if (mthca_is_memfree(mdev)) { |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1006 | list_for_each_entry(fmr, fmr_list, list) |
| 1007 | mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); |
| 1008 | |
| 1009 | wmb(); |
| 1010 | } else |
| 1011 | list_for_each_entry(fmr, fmr_list, list) |
| 1012 | mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); |
| 1013 | |
| 1014 | err = mthca_SYNC_TPT(mdev, &status); |
| 1015 | if (err) |
| 1016 | return err; |
| 1017 | if (status) |
| 1018 | return -EINVAL; |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | static ssize_t show_rev(struct class_device *cdev, char *buf) |
| 1023 | { |
| 1024 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
| 1025 | return sprintf(buf, "%x\n", dev->rev_id); |
| 1026 | } |
| 1027 | |
| 1028 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) |
| 1029 | { |
| 1030 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
| 1031 | return sprintf(buf, "%x.%x.%x\n", (int) (dev->fw_ver >> 32), |
| 1032 | (int) (dev->fw_ver >> 16) & 0xffff, |
| 1033 | (int) dev->fw_ver & 0xffff); |
| 1034 | } |
| 1035 | |
| 1036 | static ssize_t show_hca(struct class_device *cdev, char *buf) |
| 1037 | { |
| 1038 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 1039 | switch (dev->pdev->device) { |
| 1040 | case PCI_DEVICE_ID_MELLANOX_TAVOR: |
| 1041 | return sprintf(buf, "MT23108\n"); |
| 1042 | case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: |
| 1043 | return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); |
| 1044 | case PCI_DEVICE_ID_MELLANOX_ARBEL: |
| 1045 | return sprintf(buf, "MT25208\n"); |
| 1046 | case PCI_DEVICE_ID_MELLANOX_SINAI: |
| 1047 | case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: |
| 1048 | return sprintf(buf, "MT25204\n"); |
| 1049 | default: |
| 1050 | return sprintf(buf, "unknown\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | } |
| 1052 | } |
| 1053 | |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1054 | static ssize_t show_board(struct class_device *cdev, char *buf) |
| 1055 | { |
| 1056 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
| 1057 | return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); |
| 1058 | } |
| 1059 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| 1061 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); |
| 1062 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1063 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | |
| 1065 | static struct class_device_attribute *mthca_class_attributes[] = { |
| 1066 | &class_device_attr_hw_rev, |
| 1067 | &class_device_attr_fw_ver, |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1068 | &class_device_attr_hca_type, |
| 1069 | &class_device_attr_board_id |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | }; |
| 1071 | |
| 1072 | int mthca_register_device(struct mthca_dev *dev) |
| 1073 | { |
| 1074 | int ret; |
| 1075 | int i; |
| 1076 | |
| 1077 | strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 1078 | dev->ib_dev.owner = THIS_MODULE; |
| 1079 | |
Roland Dreier | 274c089 | 2005-09-29 14:17:48 -0700 | [diff] [blame] | 1080 | dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 1081 | dev->ib_dev.uverbs_cmd_mask = |
| 1082 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | |
| 1083 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | |
| 1084 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | |
| 1085 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | |
| 1086 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | |
| 1087 | (1ull << IB_USER_VERBS_CMD_REG_MR) | |
| 1088 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
| 1089 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | |
| 1090 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | |
| 1091 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
| 1092 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | |
| 1093 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
| 1094 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
| 1095 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | |
| 1096 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | |
| 1097 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | |
| 1098 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | |
| 1099 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | dev->ib_dev.node_type = IB_NODE_CA; |
| 1101 | dev->ib_dev.phys_port_cnt = dev->limits.num_ports; |
| 1102 | dev->ib_dev.dma_device = &dev->pdev->dev; |
| 1103 | dev->ib_dev.class_dev.dev = &dev->pdev->dev; |
| 1104 | dev->ib_dev.query_device = mthca_query_device; |
| 1105 | dev->ib_dev.query_port = mthca_query_port; |
| 1106 | dev->ib_dev.modify_port = mthca_modify_port; |
| 1107 | dev->ib_dev.query_pkey = mthca_query_pkey; |
| 1108 | dev->ib_dev.query_gid = mthca_query_gid; |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 1109 | dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; |
| 1110 | dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 1111 | dev->ib_dev.mmap = mthca_mmap_uar; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | dev->ib_dev.alloc_pd = mthca_alloc_pd; |
| 1113 | dev->ib_dev.dealloc_pd = mthca_dealloc_pd; |
| 1114 | dev->ib_dev.create_ah = mthca_ah_create; |
| 1115 | dev->ib_dev.destroy_ah = mthca_ah_destroy; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1116 | |
| 1117 | if (dev->mthca_flags & MTHCA_FLAG_SRQ) { |
| 1118 | dev->ib_dev.create_srq = mthca_create_srq; |
Roland Dreier | 90f104d | 2005-10-06 13:15:56 -0700 | [diff] [blame] | 1119 | dev->ib_dev.modify_srq = mthca_modify_srq; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1120 | dev->ib_dev.destroy_srq = mthca_destroy_srq; |
| 1121 | |
| 1122 | if (mthca_is_memfree(dev)) |
| 1123 | dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; |
| 1124 | else |
| 1125 | dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; |
| 1126 | } |
| 1127 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | dev->ib_dev.create_qp = mthca_create_qp; |
| 1129 | dev->ib_dev.modify_qp = mthca_modify_qp; |
| 1130 | dev->ib_dev.destroy_qp = mthca_destroy_qp; |
| 1131 | dev->ib_dev.create_cq = mthca_create_cq; |
| 1132 | dev->ib_dev.destroy_cq = mthca_destroy_cq; |
| 1133 | dev->ib_dev.poll_cq = mthca_poll_cq; |
| 1134 | dev->ib_dev.get_dma_mr = mthca_get_dma_mr; |
| 1135 | dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1136 | dev->ib_dev.reg_user_mr = mthca_reg_user_mr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | dev->ib_dev.dereg_mr = mthca_dereg_mr; |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1138 | |
| 1139 | if (dev->mthca_flags & MTHCA_FLAG_FMR) { |
| 1140 | dev->ib_dev.alloc_fmr = mthca_alloc_fmr; |
| 1141 | dev->ib_dev.unmap_fmr = mthca_unmap_fmr; |
| 1142 | dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1143 | if (mthca_is_memfree(dev)) |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1144 | dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; |
| 1145 | else |
| 1146 | dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; |
| 1147 | } |
| 1148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | dev->ib_dev.attach_mcast = mthca_multicast_attach; |
| 1150 | dev->ib_dev.detach_mcast = mthca_multicast_detach; |
| 1151 | dev->ib_dev.process_mad = mthca_process_mad; |
| 1152 | |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1153 | if (mthca_is_memfree(dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; |
| 1155 | dev->ib_dev.post_send = mthca_arbel_post_send; |
| 1156 | dev->ib_dev.post_recv = mthca_arbel_post_receive; |
| 1157 | } else { |
| 1158 | dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; |
| 1159 | dev->ib_dev.post_send = mthca_tavor_post_send; |
| 1160 | dev->ib_dev.post_recv = mthca_tavor_post_receive; |
| 1161 | } |
| 1162 | |
| 1163 | init_MUTEX(&dev->cap_mask_mutex); |
| 1164 | |
| 1165 | ret = ib_register_device(&dev->ib_dev); |
| 1166 | if (ret) |
| 1167 | return ret; |
| 1168 | |
| 1169 | for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) { |
| 1170 | ret = class_device_create_file(&dev->ib_dev.class_dev, |
| 1171 | mthca_class_attributes[i]); |
| 1172 | if (ret) { |
| 1173 | ib_unregister_device(&dev->ib_dev); |
| 1174 | return ret; |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | return 0; |
| 1179 | } |
| 1180 | |
| 1181 | void mthca_unregister_device(struct mthca_dev *dev) |
| 1182 | { |
| 1183 | ib_unregister_device(&dev->ib_dev); |
| 1184 | } |