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 | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 4 | * Copyright (c) 2005, 2006 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 | * |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 36 | * $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | */ |
| 38 | |
Roland Dreier | a4d61e8 | 2005-08-25 13:40:04 -0700 | [diff] [blame] | 39 | #include <rdma/ib_smi.h> |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 40 | #include <rdma/ib_umem.h> |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 41 | #include <rdma/ib_user_verbs.h> |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 42 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | #include "mthca_dev.h" |
| 45 | #include "mthca_cmd.h" |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 46 | #include "mthca_user.h" |
| 47 | #include "mthca_memfree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 49 | static void init_query_mad(struct ib_smp *mad) |
| 50 | { |
| 51 | mad->base_version = 1; |
| 52 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; |
| 53 | mad->class_version = 1; |
| 54 | mad->method = IB_MGMT_METHOD_GET; |
| 55 | } |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | static int mthca_query_device(struct ib_device *ibdev, |
| 58 | struct ib_device_attr *props) |
| 59 | { |
| 60 | struct ib_smp *in_mad = NULL; |
| 61 | struct ib_smp *out_mad = NULL; |
| 62 | int err = -ENOMEM; |
| 63 | struct mthca_dev* mdev = to_mdev(ibdev); |
| 64 | |
| 65 | u8 status; |
| 66 | |
Roland Dreier | 105e50a | 2006-01-09 15:21:21 -0800 | [diff] [blame] | 67 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 69 | if (!in_mad || !out_mad) |
| 70 | goto out; |
| 71 | |
Roland Dreier | a852092 | 2005-06-27 14:36:42 -0700 | [diff] [blame] | 72 | memset(props, 0, sizeof *props); |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | props->fw_ver = mdev->fw_ver; |
| 75 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 76 | init_query_mad(in_mad); |
| 77 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | |
| 79 | err = mthca_MAD_IFC(mdev, 1, 1, |
| 80 | 1, NULL, NULL, in_mad, out_mad, |
| 81 | &status); |
| 82 | if (err) |
| 83 | goto out; |
| 84 | if (status) { |
| 85 | err = -EINVAL; |
| 86 | goto out; |
| 87 | } |
| 88 | |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 89 | props->device_cap_flags = mdev->device_cap_flags; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 90 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | 0xffffff; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 92 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
Jack Morgenstein | a1c337a | 2005-09-27 13:54:44 -0700 | [diff] [blame] | 93 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 96 | props->max_mr_size = ~0ull; |
Jack Morgenstein | 0f69ce1 | 2005-11-04 16:03:32 -0800 | [diff] [blame] | 97 | props->page_size_cap = mdev->limits.page_size_cap; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 98 | props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 99 | props->max_qp_wr = mdev->limits.max_wqes; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 100 | props->max_sge = mdev->limits.max_sg; |
| 101 | props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 102 | props->max_cqe = mdev->limits.max_cqes; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 103 | props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; |
| 104 | props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; |
| 105 | props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 106 | props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; |
| 107 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
| 108 | props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; |
| 109 | props->max_srq_wr = mdev->limits.max_srq_wqes; |
Jack Morgenstein | 59fef3b | 2006-04-11 18:16:27 +0300 | [diff] [blame] | 110 | props->max_srq_sge = mdev->limits.max_srq_sge; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 111 | props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; |
Roland Dreier | 2fa5e2e | 2006-02-01 13:38:24 -0800 | [diff] [blame] | 112 | props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? |
Jack Morgenstein | 33033b7 | 2005-09-26 12:30:02 -0700 | [diff] [blame] | 113 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 114 | props->max_pkeys = mdev->limits.pkey_table_len; |
| 115 | props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; |
| 116 | props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; |
Roland Dreier | 2fa5e2e | 2006-02-01 13:38:24 -0800 | [diff] [blame] | 117 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 118 | props->max_mcast_grp; |
Or Gerlitz | d4cb078 | 2006-06-17 20:37:37 -0700 | [diff] [blame] | 119 | /* |
| 120 | * If Sinai memory key optimization is being used, then only |
| 121 | * the 8-bit key portion will change. For other HCAs, the |
| 122 | * unused index bits will also be used for FMR remapping. |
| 123 | */ |
| 124 | if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) |
| 125 | props->max_map_per_fmr = 255; |
| 126 | else |
| 127 | props->max_map_per_fmr = |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 128 | (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; |
Roland Dreier | 8cf2daf | 2005-04-16 15:26:14 -0700 | [diff] [blame] | 129 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | err = 0; |
| 131 | out: |
| 132 | kfree(in_mad); |
| 133 | kfree(out_mad); |
| 134 | return err; |
| 135 | } |
| 136 | |
| 137 | static int mthca_query_port(struct ib_device *ibdev, |
| 138 | u8 port, struct ib_port_attr *props) |
| 139 | { |
| 140 | struct ib_smp *in_mad = NULL; |
| 141 | struct ib_smp *out_mad = NULL; |
| 142 | int err = -ENOMEM; |
| 143 | u8 status; |
| 144 | |
Roland Dreier | 105e50a | 2006-01-09 15:21:21 -0800 | [diff] [blame] | 145 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 147 | if (!in_mad || !out_mad) |
| 148 | goto out; |
| 149 | |
Roland Dreier | d1887ec | 2005-08-18 12:14:11 -0700 | [diff] [blame] | 150 | memset(props, 0, sizeof *props); |
| 151 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 152 | init_query_mad(in_mad); |
| 153 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 154 | in_mad->attr_mod = cpu_to_be32(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
| 156 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 157 | port, NULL, NULL, in_mad, out_mad, |
| 158 | &status); |
| 159 | if (err) |
| 160 | goto out; |
| 161 | if (status) { |
| 162 | err = -EINVAL; |
| 163 | goto out; |
| 164 | } |
| 165 | |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 166 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | props->lmc = out_mad->data[34] & 0x7; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 168 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | props->sm_sl = out_mad->data[36] & 0xf; |
| 170 | props->state = out_mad->data[32] & 0xf; |
| 171 | props->phys_state = out_mad->data[33] >> 4; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 172 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; |
Roland Dreier | d1887ec | 2005-08-18 12:14:11 -0700 | [diff] [blame] | 174 | props->max_msg_sz = 0x80000000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; |
Jack Morgenstein | 9825051 | 2005-10-01 13:09:44 -0700 | [diff] [blame] | 176 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 177 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | props->active_width = out_mad->data[31] & 0xf; |
| 179 | props->active_speed = out_mad->data[35] >> 4; |
Jack Morgenstein | 9825051 | 2005-10-01 13:09:44 -0700 | [diff] [blame] | 180 | props->max_mtu = out_mad->data[41] & 0xf; |
| 181 | props->active_mtu = out_mad->data[36] >> 4; |
| 182 | props->subnet_timeout = out_mad->data[51] & 0x1f; |
Jack Morgenstein | a8bf4e7 | 2006-10-04 13:56:34 +0200 | [diff] [blame] | 183 | props->max_vl_num = out_mad->data[37] >> 4; |
| 184 | props->init_type_reply = out_mad->data[41] >> 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
| 186 | out: |
| 187 | kfree(in_mad); |
| 188 | kfree(out_mad); |
| 189 | return err; |
| 190 | } |
| 191 | |
Roland Dreier | 6dfc390 | 2006-02-02 10:04:19 -0800 | [diff] [blame] | 192 | static int mthca_modify_device(struct ib_device *ibdev, |
| 193 | int mask, |
| 194 | struct ib_device_modify *props) |
| 195 | { |
| 196 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) |
| 197 | return -EOPNOTSUPP; |
| 198 | |
| 199 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { |
| 200 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) |
| 201 | return -ERESTARTSYS; |
| 202 | memcpy(ibdev->node_desc, props->node_desc, 64); |
| 203 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
| 204 | } |
| 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | static int mthca_modify_port(struct ib_device *ibdev, |
| 210 | u8 port, int port_modify_mask, |
| 211 | struct ib_port_modify *props) |
| 212 | { |
| 213 | struct mthca_set_ib_param set_ib; |
| 214 | struct ib_port_attr attr; |
| 215 | int err; |
| 216 | u8 status; |
| 217 | |
Roland Dreier | fd9cfdd | 2006-01-30 16:45:11 -0800 | [diff] [blame] | 218 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | return -ERESTARTSYS; |
| 220 | |
| 221 | err = mthca_query_port(ibdev, port, &attr); |
| 222 | if (err) |
| 223 | goto out; |
| 224 | |
| 225 | set_ib.set_si_guid = 0; |
| 226 | set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); |
| 227 | |
| 228 | set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & |
| 229 | ~props->clr_port_cap_mask; |
| 230 | |
| 231 | err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); |
| 232 | if (err) |
| 233 | goto out; |
| 234 | if (status) { |
| 235 | err = -EINVAL; |
| 236 | goto out; |
| 237 | } |
| 238 | |
| 239 | out: |
Roland Dreier | fd9cfdd | 2006-01-30 16:45:11 -0800 | [diff] [blame] | 240 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | return err; |
| 242 | } |
| 243 | |
| 244 | static int mthca_query_pkey(struct ib_device *ibdev, |
| 245 | u8 port, u16 index, u16 *pkey) |
| 246 | { |
| 247 | struct ib_smp *in_mad = NULL; |
| 248 | struct ib_smp *out_mad = NULL; |
| 249 | int err = -ENOMEM; |
| 250 | u8 status; |
| 251 | |
Roland Dreier | 105e50a | 2006-01-09 15:21:21 -0800 | [diff] [blame] | 252 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 254 | if (!in_mad || !out_mad) |
| 255 | goto out; |
| 256 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 257 | init_query_mad(in_mad); |
| 258 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; |
| 259 | in_mad->attr_mod = cpu_to_be32(index / 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 262 | port, NULL, NULL, in_mad, out_mad, |
| 263 | &status); |
| 264 | if (err) |
| 265 | goto out; |
| 266 | if (status) { |
| 267 | err = -EINVAL; |
| 268 | goto out; |
| 269 | } |
| 270 | |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 271 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
| 273 | out: |
| 274 | kfree(in_mad); |
| 275 | kfree(out_mad); |
| 276 | return err; |
| 277 | } |
| 278 | |
| 279 | static int mthca_query_gid(struct ib_device *ibdev, u8 port, |
| 280 | int index, union ib_gid *gid) |
| 281 | { |
| 282 | struct ib_smp *in_mad = NULL; |
| 283 | struct ib_smp *out_mad = NULL; |
| 284 | int err = -ENOMEM; |
| 285 | u8 status; |
| 286 | |
Roland Dreier | 105e50a | 2006-01-09 15:21:21 -0800 | [diff] [blame] | 287 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 289 | if (!in_mad || !out_mad) |
| 290 | goto out; |
| 291 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 292 | init_query_mad(in_mad); |
| 293 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; |
| 294 | in_mad->attr_mod = cpu_to_be32(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
| 296 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 297 | port, NULL, NULL, in_mad, out_mad, |
| 298 | &status); |
| 299 | if (err) |
| 300 | goto out; |
| 301 | if (status) { |
| 302 | err = -EINVAL; |
| 303 | goto out; |
| 304 | } |
| 305 | |
| 306 | memcpy(gid->raw, out_mad->data + 8, 8); |
| 307 | |
Roland Dreier | 87635b7 | 2006-01-09 15:29:53 -0800 | [diff] [blame] | 308 | init_query_mad(in_mad); |
| 309 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; |
| 310 | in_mad->attr_mod = cpu_to_be32(index / 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, |
| 313 | port, NULL, NULL, in_mad, out_mad, |
| 314 | &status); |
| 315 | if (err) |
| 316 | goto out; |
| 317 | if (status) { |
| 318 | err = -EINVAL; |
| 319 | goto out; |
| 320 | } |
| 321 | |
Roland Dreier | 254abfd | 2006-05-01 10:40:23 -0700 | [diff] [blame] | 322 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
| 324 | out: |
| 325 | kfree(in_mad); |
| 326 | kfree(out_mad); |
| 327 | return err; |
| 328 | } |
| 329 | |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 330 | static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, |
| 331 | struct ib_udata *udata) |
| 332 | { |
| 333 | struct mthca_alloc_ucontext_resp uresp; |
| 334 | struct mthca_ucontext *context; |
| 335 | int err; |
| 336 | |
| 337 | memset(&uresp, 0, sizeof uresp); |
| 338 | |
| 339 | uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; |
| 340 | if (mthca_is_memfree(to_mdev(ibdev))) |
| 341 | uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; |
| 342 | else |
| 343 | uresp.uarc_size = 0; |
| 344 | |
| 345 | context = kmalloc(sizeof *context, GFP_KERNEL); |
| 346 | if (!context) |
| 347 | return ERR_PTR(-ENOMEM); |
| 348 | |
| 349 | err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); |
| 350 | if (err) { |
| 351 | kfree(context); |
| 352 | return ERR_PTR(err); |
| 353 | } |
| 354 | |
| 355 | context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); |
| 356 | if (IS_ERR(context->db_tab)) { |
| 357 | err = PTR_ERR(context->db_tab); |
| 358 | mthca_uar_free(to_mdev(ibdev), &context->uar); |
| 359 | kfree(context); |
| 360 | return ERR_PTR(err); |
| 361 | } |
| 362 | |
| 363 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { |
| 364 | mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); |
| 365 | mthca_uar_free(to_mdev(ibdev), &context->uar); |
| 366 | kfree(context); |
| 367 | return ERR_PTR(-EFAULT); |
| 368 | } |
| 369 | |
| 370 | return &context->ibucontext; |
| 371 | } |
| 372 | |
| 373 | static int mthca_dealloc_ucontext(struct ib_ucontext *context) |
| 374 | { |
| 375 | mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, |
| 376 | to_mucontext(context)->db_tab); |
| 377 | mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); |
| 378 | kfree(to_mucontext(context)); |
| 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 383 | static int mthca_mmap_uar(struct ib_ucontext *context, |
| 384 | struct vm_area_struct *vma) |
| 385 | { |
| 386 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
| 387 | return -EINVAL; |
| 388 | |
| 389 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| 390 | |
Michael S. Tsirkin | 6d37675 | 2005-07-27 14:42:45 -0700 | [diff] [blame] | 391 | if (io_remap_pfn_range(vma, vma->vm_start, |
| 392 | to_mucontext(context)->uar.pfn, |
| 393 | PAGE_SIZE, vma->vm_page_prot)) |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 394 | return -EAGAIN; |
| 395 | |
| 396 | return 0; |
| 397 | } |
| 398 | |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 399 | static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, |
| 400 | struct ib_ucontext *context, |
| 401 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | { |
| 403 | struct mthca_pd *pd; |
| 404 | int err; |
| 405 | |
| 406 | pd = kmalloc(sizeof *pd, GFP_KERNEL); |
| 407 | if (!pd) |
| 408 | return ERR_PTR(-ENOMEM); |
| 409 | |
Roland Dreier | 99264c1 | 2005-07-07 17:57:18 -0700 | [diff] [blame] | 410 | err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | if (err) { |
| 412 | kfree(pd); |
| 413 | return ERR_PTR(err); |
| 414 | } |
| 415 | |
Roland Dreier | 99264c1 | 2005-07-07 17:57:18 -0700 | [diff] [blame] | 416 | if (context) { |
| 417 | if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { |
| 418 | mthca_pd_free(to_mdev(ibdev), pd); |
| 419 | kfree(pd); |
| 420 | return ERR_PTR(-EFAULT); |
| 421 | } |
| 422 | } |
| 423 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | return &pd->ibpd; |
| 425 | } |
| 426 | |
| 427 | static int mthca_dealloc_pd(struct ib_pd *pd) |
| 428 | { |
| 429 | mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); |
| 430 | kfree(pd); |
| 431 | |
| 432 | return 0; |
| 433 | } |
| 434 | |
| 435 | static struct ib_ah *mthca_ah_create(struct ib_pd *pd, |
| 436 | struct ib_ah_attr *ah_attr) |
| 437 | { |
| 438 | int err; |
| 439 | struct mthca_ah *ah; |
| 440 | |
Roland Dreier | 8df8a34 | 2005-04-16 15:26:26 -0700 | [diff] [blame] | 441 | ah = kmalloc(sizeof *ah, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | if (!ah) |
| 443 | return ERR_PTR(-ENOMEM); |
| 444 | |
| 445 | err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); |
| 446 | if (err) { |
| 447 | kfree(ah); |
| 448 | return ERR_PTR(err); |
| 449 | } |
| 450 | |
| 451 | return &ah->ibah; |
| 452 | } |
| 453 | |
| 454 | static int mthca_ah_destroy(struct ib_ah *ah) |
| 455 | { |
| 456 | mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); |
| 457 | kfree(ah); |
| 458 | |
| 459 | return 0; |
| 460 | } |
| 461 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 462 | static struct ib_srq *mthca_create_srq(struct ib_pd *pd, |
| 463 | struct ib_srq_init_attr *init_attr, |
| 464 | struct ib_udata *udata) |
| 465 | { |
| 466 | struct mthca_create_srq ucmd; |
| 467 | struct mthca_ucontext *context = NULL; |
| 468 | struct mthca_srq *srq; |
| 469 | int err; |
| 470 | |
| 471 | srq = kmalloc(sizeof *srq, GFP_KERNEL); |
| 472 | if (!srq) |
| 473 | return ERR_PTR(-ENOMEM); |
| 474 | |
| 475 | if (pd->uobject) { |
| 476 | context = to_mucontext(pd->uobject->context); |
| 477 | |
Jack Morgenstein | 17e2e81 | 2006-01-12 15:35:15 -0800 | [diff] [blame] | 478 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
| 479 | err = -EFAULT; |
| 480 | goto err_free; |
| 481 | } |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 482 | |
| 483 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 484 | context->db_tab, ucmd.db_index, |
| 485 | ucmd.db_page); |
| 486 | |
| 487 | if (err) |
| 488 | goto err_free; |
| 489 | |
| 490 | srq->mr.ibmr.lkey = ucmd.lkey; |
| 491 | srq->db_index = ucmd.db_index; |
| 492 | } |
| 493 | |
| 494 | err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), |
| 495 | &init_attr->attr, srq); |
| 496 | |
| 497 | if (err && pd->uobject) |
| 498 | mthca_unmap_user_db(to_mdev(pd->device), &context->uar, |
| 499 | context->db_tab, ucmd.db_index); |
| 500 | |
| 501 | if (err) |
| 502 | goto err_free; |
| 503 | |
| 504 | if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { |
| 505 | mthca_free_srq(to_mdev(pd->device), srq); |
| 506 | err = -EFAULT; |
| 507 | goto err_free; |
| 508 | } |
| 509 | |
| 510 | return &srq->ibsrq; |
| 511 | |
| 512 | err_free: |
| 513 | kfree(srq); |
| 514 | |
| 515 | return ERR_PTR(err); |
| 516 | } |
| 517 | |
| 518 | static int mthca_destroy_srq(struct ib_srq *srq) |
| 519 | { |
| 520 | struct mthca_ucontext *context; |
| 521 | |
| 522 | if (srq->uobject) { |
| 523 | context = to_mucontext(srq->uobject->context); |
| 524 | |
| 525 | mthca_unmap_user_db(to_mdev(srq->device), &context->uar, |
| 526 | context->db_tab, to_msrq(srq)->db_index); |
| 527 | } |
| 528 | |
| 529 | mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); |
| 530 | kfree(srq); |
| 531 | |
| 532 | return 0; |
| 533 | } |
| 534 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | static struct ib_qp *mthca_create_qp(struct ib_pd *pd, |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 536 | struct ib_qp_init_attr *init_attr, |
| 537 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 539 | struct mthca_create_qp ucmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | struct mthca_qp *qp; |
| 541 | int err; |
| 542 | |
| 543 | switch (init_attr->qp_type) { |
| 544 | case IB_QPT_RC: |
| 545 | case IB_QPT_UC: |
| 546 | case IB_QPT_UD: |
| 547 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 548 | struct mthca_ucontext *context; |
| 549 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | qp = kmalloc(sizeof *qp, GFP_KERNEL); |
| 551 | if (!qp) |
| 552 | return ERR_PTR(-ENOMEM); |
| 553 | |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 554 | if (pd->uobject) { |
| 555 | context = to_mucontext(pd->uobject->context); |
| 556 | |
Jack Morgenstein | 17e2e81 | 2006-01-12 15:35:15 -0800 | [diff] [blame] | 557 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
| 558 | kfree(qp); |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 559 | return ERR_PTR(-EFAULT); |
Jack Morgenstein | 17e2e81 | 2006-01-12 15:35:15 -0800 | [diff] [blame] | 560 | } |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 561 | |
| 562 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 563 | context->db_tab, |
| 564 | ucmd.sq_db_index, ucmd.sq_db_page); |
| 565 | if (err) { |
| 566 | kfree(qp); |
| 567 | return ERR_PTR(err); |
| 568 | } |
| 569 | |
| 570 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, |
| 571 | context->db_tab, |
| 572 | ucmd.rq_db_index, ucmd.rq_db_page); |
| 573 | if (err) { |
| 574 | mthca_unmap_user_db(to_mdev(pd->device), |
| 575 | &context->uar, |
| 576 | context->db_tab, |
| 577 | ucmd.sq_db_index); |
| 578 | kfree(qp); |
| 579 | return ERR_PTR(err); |
| 580 | } |
| 581 | |
| 582 | qp->mr.ibmr.lkey = ucmd.lkey; |
| 583 | qp->sq.db_index = ucmd.sq_db_index; |
| 584 | qp->rq.db_index = ucmd.rq_db_index; |
| 585 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
| 587 | err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), |
| 588 | to_mcq(init_attr->send_cq), |
| 589 | to_mcq(init_attr->recv_cq), |
| 590 | init_attr->qp_type, init_attr->sq_sig_type, |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 591 | &init_attr->cap, qp); |
| 592 | |
| 593 | if (err && pd->uobject) { |
| 594 | context = to_mucontext(pd->uobject->context); |
| 595 | |
| 596 | mthca_unmap_user_db(to_mdev(pd->device), |
| 597 | &context->uar, |
| 598 | context->db_tab, |
| 599 | ucmd.sq_db_index); |
| 600 | mthca_unmap_user_db(to_mdev(pd->device), |
| 601 | &context->uar, |
| 602 | context->db_tab, |
| 603 | ucmd.rq_db_index); |
| 604 | } |
| 605 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | qp->ibqp.qp_num = qp->qpn; |
| 607 | break; |
| 608 | } |
| 609 | case IB_QPT_SMI: |
| 610 | case IB_QPT_GSI: |
| 611 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 612 | /* Don't allow userspace to create special QPs */ |
| 613 | if (pd->uobject) |
| 614 | return ERR_PTR(-EINVAL); |
| 615 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); |
| 617 | if (!qp) |
| 618 | return ERR_PTR(-ENOMEM); |
| 619 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; |
| 621 | |
| 622 | err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), |
| 623 | to_mcq(init_attr->send_cq), |
| 624 | to_mcq(init_attr->recv_cq), |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 625 | init_attr->sq_sig_type, &init_attr->cap, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | qp->ibqp.qp_num, init_attr->port_num, |
| 627 | to_msqp(qp)); |
| 628 | break; |
| 629 | } |
| 630 | default: |
| 631 | /* Don't support raw QPs */ |
| 632 | return ERR_PTR(-ENOSYS); |
| 633 | } |
| 634 | |
| 635 | if (err) { |
| 636 | kfree(qp); |
| 637 | return ERR_PTR(err); |
| 638 | } |
| 639 | |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 640 | init_attr->cap.max_send_wr = qp->sq.max; |
| 641 | init_attr->cap.max_recv_wr = qp->rq.max; |
| 642 | init_attr->cap.max_send_sge = qp->sq.max_gs; |
| 643 | init_attr->cap.max_recv_sge = qp->rq.max_gs; |
Jack Morgenstein | 77369ed | 2005-11-09 11:26:07 -0800 | [diff] [blame] | 644 | init_attr->cap.max_inline_data = qp->max_inline_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | |
| 646 | return &qp->ibqp; |
| 647 | } |
| 648 | |
| 649 | static int mthca_destroy_qp(struct ib_qp *qp) |
| 650 | { |
Roland Dreier | 80c8ec2 | 2005-07-07 17:57:20 -0700 | [diff] [blame] | 651 | if (qp->uobject) { |
| 652 | mthca_unmap_user_db(to_mdev(qp->device), |
| 653 | &to_mucontext(qp->uobject->context)->uar, |
| 654 | to_mucontext(qp->uobject->context)->db_tab, |
| 655 | to_mqp(qp)->sq.db_index); |
| 656 | mthca_unmap_user_db(to_mdev(qp->device), |
| 657 | &to_mucontext(qp->uobject->context)->uar, |
| 658 | to_mucontext(qp->uobject->context)->db_tab, |
| 659 | to_mqp(qp)->rq.db_index); |
| 660 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); |
| 662 | kfree(qp); |
| 663 | return 0; |
| 664 | } |
| 665 | |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 666 | static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 667 | int comp_vector, |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 668 | struct ib_ucontext *context, |
| 669 | struct ib_udata *udata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | { |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 671 | struct mthca_create_cq ucmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | struct mthca_cq *cq; |
| 673 | int nent; |
| 674 | int err; |
| 675 | |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 676 | if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) |
| 677 | return ERR_PTR(-EINVAL); |
| 678 | |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 679 | if (context) { |
| 680 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) |
| 681 | return ERR_PTR(-EFAULT); |
| 682 | |
| 683 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 684 | to_mucontext(context)->db_tab, |
| 685 | ucmd.set_db_index, ucmd.set_db_page); |
| 686 | if (err) |
| 687 | return ERR_PTR(err); |
| 688 | |
| 689 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 690 | to_mucontext(context)->db_tab, |
| 691 | ucmd.arm_db_index, ucmd.arm_db_page); |
| 692 | if (err) |
| 693 | goto err_unmap_set; |
| 694 | } |
| 695 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | cq = kmalloc(sizeof *cq, GFP_KERNEL); |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 697 | if (!cq) { |
| 698 | err = -ENOMEM; |
| 699 | goto err_unmap_arm; |
| 700 | } |
| 701 | |
| 702 | if (context) { |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 703 | cq->buf.mr.ibmr.lkey = ucmd.lkey; |
| 704 | cq->set_ci_db_index = ucmd.set_db_index; |
| 705 | cq->arm_db_index = ucmd.arm_db_index; |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 706 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | |
| 708 | for (nent = 1; nent <= entries; nent <<= 1) |
| 709 | ; /* nothing */ |
| 710 | |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 711 | err = mthca_init_cq(to_mdev(ibdev), nent, |
| 712 | context ? to_mucontext(context) : NULL, |
| 713 | context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, |
| 714 | cq); |
| 715 | if (err) |
| 716 | goto err_free; |
| 717 | |
| 718 | if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { |
| 719 | mthca_free_cq(to_mdev(ibdev), cq); |
| 720 | goto err_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | } |
| 722 | |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 723 | cq->resize_buf = NULL; |
| 724 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | return &cq->ibcq; |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 726 | |
| 727 | err_free: |
| 728 | kfree(cq); |
| 729 | |
| 730 | err_unmap_arm: |
| 731 | if (context) |
| 732 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 733 | to_mucontext(context)->db_tab, ucmd.arm_db_index); |
| 734 | |
| 735 | err_unmap_set: |
| 736 | if (context) |
| 737 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, |
| 738 | to_mucontext(context)->db_tab, ucmd.set_db_index); |
| 739 | |
| 740 | return ERR_PTR(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | } |
| 742 | |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 743 | static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, |
| 744 | int entries) |
| 745 | { |
| 746 | int ret; |
| 747 | |
| 748 | spin_lock_irq(&cq->lock); |
| 749 | if (cq->resize_buf) { |
| 750 | ret = -EBUSY; |
| 751 | goto unlock; |
| 752 | } |
| 753 | |
| 754 | cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); |
| 755 | if (!cq->resize_buf) { |
| 756 | ret = -ENOMEM; |
| 757 | goto unlock; |
| 758 | } |
| 759 | |
| 760 | cq->resize_buf->state = CQ_RESIZE_ALLOC; |
| 761 | |
| 762 | ret = 0; |
| 763 | |
| 764 | unlock: |
| 765 | spin_unlock_irq(&cq->lock); |
| 766 | |
| 767 | if (ret) |
| 768 | return ret; |
| 769 | |
| 770 | ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); |
| 771 | if (ret) { |
| 772 | spin_lock_irq(&cq->lock); |
| 773 | kfree(cq->resize_buf); |
| 774 | cq->resize_buf = NULL; |
| 775 | spin_unlock_irq(&cq->lock); |
| 776 | return ret; |
| 777 | } |
| 778 | |
| 779 | cq->resize_buf->cqe = entries - 1; |
| 780 | |
| 781 | spin_lock_irq(&cq->lock); |
| 782 | cq->resize_buf->state = CQ_RESIZE_READY; |
| 783 | spin_unlock_irq(&cq->lock); |
| 784 | |
| 785 | return 0; |
| 786 | } |
| 787 | |
| 788 | static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) |
| 789 | { |
| 790 | struct mthca_dev *dev = to_mdev(ibcq->device); |
| 791 | struct mthca_cq *cq = to_mcq(ibcq); |
| 792 | struct mthca_resize_cq ucmd; |
| 793 | u32 lkey; |
| 794 | u8 status; |
| 795 | int ret; |
| 796 | |
| 797 | if (entries < 1 || entries > dev->limits.max_cqes) |
| 798 | return -EINVAL; |
| 799 | |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 800 | mutex_lock(&cq->mutex); |
| 801 | |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 802 | entries = roundup_pow_of_two(entries + 1); |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 803 | if (entries == ibcq->cqe + 1) { |
| 804 | ret = 0; |
| 805 | goto out; |
| 806 | } |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 807 | |
| 808 | if (cq->is_kernel) { |
| 809 | ret = mthca_alloc_resize_buf(dev, cq, entries); |
| 810 | if (ret) |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 811 | goto out; |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 812 | lkey = cq->resize_buf->buf.mr.ibmr.lkey; |
| 813 | } else { |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 814 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
| 815 | ret = -EFAULT; |
| 816 | goto out; |
| 817 | } |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 818 | lkey = ucmd.lkey; |
| 819 | } |
| 820 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 821 | ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status); |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 822 | if (status) |
| 823 | ret = -EINVAL; |
| 824 | |
| 825 | if (ret) { |
| 826 | if (cq->resize_buf) { |
| 827 | mthca_free_cq_buf(dev, &cq->resize_buf->buf, |
| 828 | cq->resize_buf->cqe); |
| 829 | kfree(cq->resize_buf); |
| 830 | spin_lock_irq(&cq->lock); |
| 831 | cq->resize_buf = NULL; |
| 832 | spin_unlock_irq(&cq->lock); |
| 833 | } |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 834 | goto out; |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 835 | } |
| 836 | |
| 837 | if (cq->is_kernel) { |
| 838 | struct mthca_cq_buf tbuf; |
| 839 | int tcqe; |
| 840 | |
| 841 | spin_lock_irq(&cq->lock); |
| 842 | if (cq->resize_buf->state == CQ_RESIZE_READY) { |
| 843 | mthca_cq_resize_copy_cqes(cq); |
| 844 | tbuf = cq->buf; |
| 845 | tcqe = cq->ibcq.cqe; |
| 846 | cq->buf = cq->resize_buf->buf; |
| 847 | cq->ibcq.cqe = cq->resize_buf->cqe; |
| 848 | } else { |
| 849 | tbuf = cq->resize_buf->buf; |
| 850 | tcqe = cq->resize_buf->cqe; |
| 851 | } |
| 852 | |
| 853 | kfree(cq->resize_buf); |
| 854 | cq->resize_buf = NULL; |
| 855 | spin_unlock_irq(&cq->lock); |
| 856 | |
| 857 | mthca_free_cq_buf(dev, &tbuf, tcqe); |
| 858 | } else |
| 859 | ibcq->cqe = entries - 1; |
| 860 | |
Roland Dreier | c93b6fb | 2006-06-17 20:37:41 -0700 | [diff] [blame] | 861 | out: |
| 862 | mutex_unlock(&cq->mutex); |
| 863 | |
| 864 | return ret; |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 865 | } |
| 866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | static int mthca_destroy_cq(struct ib_cq *cq) |
| 868 | { |
Roland Dreier | 74c2174 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 869 | if (cq->uobject) { |
| 870 | mthca_unmap_user_db(to_mdev(cq->device), |
| 871 | &to_mucontext(cq->uobject->context)->uar, |
| 872 | to_mucontext(cq->uobject->context)->db_tab, |
| 873 | to_mcq(cq)->arm_db_index); |
| 874 | mthca_unmap_user_db(to_mdev(cq->device), |
| 875 | &to_mucontext(cq->uobject->context)->uar, |
| 876 | to_mucontext(cq->uobject->context)->db_tab, |
| 877 | to_mcq(cq)->set_ci_db_index); |
| 878 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); |
| 880 | kfree(cq); |
| 881 | |
| 882 | return 0; |
| 883 | } |
| 884 | |
| 885 | static inline u32 convert_access(int acc) |
| 886 | { |
| 887 | return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | |
| 888 | (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | |
| 889 | (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | |
| 890 | (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | |
| 891 | MTHCA_MPT_FLAG_LOCAL_READ; |
| 892 | } |
| 893 | |
| 894 | static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) |
| 895 | { |
| 896 | struct mthca_mr *mr; |
| 897 | int err; |
| 898 | |
| 899 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 900 | if (!mr) |
| 901 | return ERR_PTR(-ENOMEM); |
| 902 | |
| 903 | err = mthca_mr_alloc_notrans(to_mdev(pd->device), |
| 904 | to_mpd(pd)->pd_num, |
| 905 | convert_access(acc), mr); |
| 906 | |
| 907 | if (err) { |
| 908 | kfree(mr); |
| 909 | return ERR_PTR(err); |
| 910 | } |
| 911 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 912 | mr->umem = NULL; |
| 913 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | return &mr->ibmr; |
| 915 | } |
| 916 | |
| 917 | static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, |
| 918 | struct ib_phys_buf *buffer_list, |
| 919 | int num_phys_buf, |
| 920 | int acc, |
| 921 | u64 *iova_start) |
| 922 | { |
| 923 | struct mthca_mr *mr; |
| 924 | u64 *page_list; |
| 925 | u64 total_size; |
Roland Dreier | 0d89fe2 | 2008-02-04 20:20:42 -0800 | [diff] [blame] | 926 | unsigned long mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | int shift; |
| 928 | int npages; |
| 929 | int err; |
| 930 | int i, j, n; |
| 931 | |
Roland Dreier | 0d89fe2 | 2008-02-04 20:20:42 -0800 | [diff] [blame] | 932 | mask = buffer_list[0].addr ^ *iova_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | total_size = 0; |
| 934 | for (i = 0; i < num_phys_buf; ++i) { |
Michael S. Tsirkin | 6627fa6 | 2006-01-09 13:50:57 -0800 | [diff] [blame] | 935 | if (i != 0) |
| 936 | mask |= buffer_list[i].addr; |
| 937 | if (i != num_phys_buf - 1) |
| 938 | mask |= buffer_list[i].addr + buffer_list[i].size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | |
| 940 | total_size += buffer_list[i].size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | } |
| 942 | |
Michael S. Tsirkin | 6627fa6 | 2006-01-09 13:50:57 -0800 | [diff] [blame] | 943 | if (mask & ~PAGE_MASK) |
| 944 | return ERR_PTR(-EINVAL); |
| 945 | |
Roland Dreier | 0d89fe2 | 2008-02-04 20:20:42 -0800 | [diff] [blame] | 946 | shift = __ffs(mask | 1 << 31); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | |
| 948 | buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); |
| 949 | buffer_list[0].addr &= ~0ull << shift; |
| 950 | |
| 951 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 952 | if (!mr) |
| 953 | return ERR_PTR(-ENOMEM); |
| 954 | |
| 955 | npages = 0; |
| 956 | for (i = 0; i < num_phys_buf; ++i) |
| 957 | npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; |
| 958 | |
| 959 | if (!npages) |
| 960 | return &mr->ibmr; |
| 961 | |
| 962 | page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); |
| 963 | if (!page_list) { |
| 964 | kfree(mr); |
| 965 | return ERR_PTR(-ENOMEM); |
| 966 | } |
| 967 | |
| 968 | n = 0; |
| 969 | for (i = 0; i < num_phys_buf; ++i) |
| 970 | for (j = 0; |
| 971 | j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; |
| 972 | ++j) |
| 973 | page_list[n++] = buffer_list[i].addr + ((u64) j << shift); |
| 974 | |
| 975 | mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " |
| 976 | "in PD %x; shift %d, npages %d.\n", |
| 977 | (unsigned long long) buffer_list[0].addr, |
| 978 | (unsigned long long) *iova_start, |
| 979 | to_mpd(pd)->pd_num, |
| 980 | shift, npages); |
| 981 | |
| 982 | err = mthca_mr_alloc_phys(to_mdev(pd->device), |
| 983 | to_mpd(pd)->pd_num, |
| 984 | page_list, shift, npages, |
| 985 | *iova_start, total_size, |
| 986 | convert_access(acc), mr); |
| 987 | |
| 988 | if (err) { |
Roland Dreier | 761f9eb | 2005-06-27 14:36:44 -0700 | [diff] [blame] | 989 | kfree(page_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | kfree(mr); |
| 991 | return ERR_PTR(err); |
| 992 | } |
| 993 | |
| 994 | kfree(page_list); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 995 | mr->umem = NULL; |
| 996 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | return &mr->ibmr; |
| 998 | } |
| 999 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1000 | static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
| 1001 | u64 virt, int acc, struct ib_udata *udata) |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1002 | { |
| 1003 | struct mthca_dev *dev = to_mdev(pd->device); |
| 1004 | struct ib_umem_chunk *chunk; |
| 1005 | struct mthca_mr *mr; |
| 1006 | u64 *pages; |
| 1007 | int shift, n, len; |
| 1008 | int i, j, k; |
| 1009 | int err = 0; |
Michael S. Tsirkin | b2875d4 | 2007-02-10 23:14:25 +0200 | [diff] [blame] | 1010 | int write_mtt_size; |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1011 | |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1012 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
| 1013 | if (!mr) |
| 1014 | return ERR_PTR(-ENOMEM); |
| 1015 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1016 | mr->umem = ib_umem_get(pd->uobject->context, start, length, acc); |
| 1017 | if (IS_ERR(mr->umem)) { |
| 1018 | err = PTR_ERR(mr->umem); |
| 1019 | goto err; |
| 1020 | } |
| 1021 | |
| 1022 | shift = ffs(mr->umem->page_size) - 1; |
| 1023 | |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1024 | n = 0; |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1025 | list_for_each_entry(chunk, &mr->umem->chunk_list, list) |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1026 | n += chunk->nents; |
| 1027 | |
| 1028 | mr->mtt = mthca_alloc_mtt(dev, n); |
| 1029 | if (IS_ERR(mr->mtt)) { |
| 1030 | err = PTR_ERR(mr->mtt); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1031 | goto err_umem; |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1032 | } |
| 1033 | |
| 1034 | pages = (u64 *) __get_free_page(GFP_KERNEL); |
| 1035 | if (!pages) { |
| 1036 | err = -ENOMEM; |
| 1037 | goto err_mtt; |
| 1038 | } |
| 1039 | |
| 1040 | i = n = 0; |
| 1041 | |
Michael S. Tsirkin | b2875d4 | 2007-02-10 23:14:25 +0200 | [diff] [blame] | 1042 | write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); |
| 1043 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1044 | list_for_each_entry(chunk, &mr->umem->chunk_list, list) |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1045 | for (j = 0; j < chunk->nmap; ++j) { |
| 1046 | len = sg_dma_len(&chunk->page_list[j]) >> shift; |
| 1047 | for (k = 0; k < len; ++k) { |
| 1048 | pages[i++] = sg_dma_address(&chunk->page_list[j]) + |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1049 | mr->umem->page_size * k; |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1050 | /* |
Michael S. Tsirkin | b2875d4 | 2007-02-10 23:14:25 +0200 | [diff] [blame] | 1051 | * Be friendly to write_mtt and pass it chunks |
| 1052 | * of appropriate size. |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1053 | */ |
Michael S. Tsirkin | b2875d4 | 2007-02-10 23:14:25 +0200 | [diff] [blame] | 1054 | if (i == write_mtt_size) { |
| 1055 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1056 | if (err) |
| 1057 | goto mtt_done; |
| 1058 | n += i; |
| 1059 | i = 0; |
| 1060 | } |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | if (i) |
| 1065 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); |
| 1066 | mtt_done: |
| 1067 | free_page((unsigned long) pages); |
| 1068 | if (err) |
| 1069 | goto err_mtt; |
| 1070 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1071 | err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, |
| 1072 | convert_access(acc), mr); |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1073 | |
| 1074 | if (err) |
| 1075 | goto err_mtt; |
| 1076 | |
| 1077 | return &mr->ibmr; |
| 1078 | |
| 1079 | err_mtt: |
| 1080 | mthca_free_mtt(dev, mr->mtt); |
| 1081 | |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1082 | err_umem: |
| 1083 | ib_umem_release(mr->umem); |
| 1084 | |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1085 | err: |
| 1086 | kfree(mr); |
| 1087 | return ERR_PTR(err); |
| 1088 | } |
| 1089 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | static int mthca_dereg_mr(struct ib_mr *mr) |
| 1091 | { |
Roland Dreier | e464b2a | 2005-04-16 15:26:17 -0700 | [diff] [blame] | 1092 | struct mthca_mr *mmr = to_mmr(mr); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1093 | |
Roland Dreier | e464b2a | 2005-04-16 15:26:17 -0700 | [diff] [blame] | 1094 | mthca_free_mr(to_mdev(mr->device), mmr); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1095 | if (mmr->umem) |
| 1096 | ib_umem_release(mmr->umem); |
Roland Dreier | e464b2a | 2005-04-16 15:26:17 -0700 | [diff] [blame] | 1097 | kfree(mmr); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1098 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1099 | return 0; |
| 1100 | } |
| 1101 | |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1102 | static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, |
| 1103 | struct ib_fmr_attr *fmr_attr) |
| 1104 | { |
| 1105 | struct mthca_fmr *fmr; |
| 1106 | int err; |
| 1107 | |
Michael S. Tsirkin | 9d79f1b | 2006-12-29 16:47:37 -0800 | [diff] [blame] | 1108 | fmr = kmalloc(sizeof *fmr, GFP_KERNEL); |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1109 | if (!fmr) |
| 1110 | return ERR_PTR(-ENOMEM); |
| 1111 | |
Michael S. Tsirkin | 9d79f1b | 2006-12-29 16:47:37 -0800 | [diff] [blame] | 1112 | memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1113 | err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, |
| 1114 | convert_access(mr_access_flags), fmr); |
| 1115 | |
| 1116 | if (err) { |
| 1117 | kfree(fmr); |
| 1118 | return ERR_PTR(err); |
| 1119 | } |
| 1120 | |
| 1121 | return &fmr->ibmr; |
| 1122 | } |
| 1123 | |
| 1124 | static int mthca_dealloc_fmr(struct ib_fmr *fmr) |
| 1125 | { |
| 1126 | struct mthca_fmr *mfmr = to_mfmr(fmr); |
| 1127 | int err; |
| 1128 | |
| 1129 | err = mthca_free_fmr(to_mdev(fmr->device), mfmr); |
| 1130 | if (err) |
| 1131 | return err; |
| 1132 | |
| 1133 | kfree(mfmr); |
| 1134 | return 0; |
| 1135 | } |
| 1136 | |
| 1137 | static int mthca_unmap_fmr(struct list_head *fmr_list) |
| 1138 | { |
| 1139 | struct ib_fmr *fmr; |
| 1140 | int err; |
| 1141 | u8 status; |
| 1142 | struct mthca_dev *mdev = NULL; |
| 1143 | |
| 1144 | list_for_each_entry(fmr, fmr_list, list) { |
| 1145 | if (mdev && to_mdev(fmr->device) != mdev) |
| 1146 | return -EINVAL; |
| 1147 | mdev = to_mdev(fmr->device); |
| 1148 | } |
| 1149 | |
| 1150 | if (!mdev) |
| 1151 | return 0; |
| 1152 | |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1153 | if (mthca_is_memfree(mdev)) { |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1154 | list_for_each_entry(fmr, fmr_list, list) |
| 1155 | mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); |
| 1156 | |
| 1157 | wmb(); |
| 1158 | } else |
| 1159 | list_for_each_entry(fmr, fmr_list, list) |
| 1160 | mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); |
| 1161 | |
| 1162 | err = mthca_SYNC_TPT(mdev, &status); |
| 1163 | if (err) |
| 1164 | return err; |
| 1165 | if (status) |
| 1166 | return -EINVAL; |
| 1167 | return 0; |
| 1168 | } |
| 1169 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | static ssize_t show_rev(struct class_device *cdev, char *buf) |
| 1171 | { |
| 1172 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
| 1173 | return sprintf(buf, "%x\n", dev->rev_id); |
| 1174 | } |
| 1175 | |
| 1176 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) |
| 1177 | { |
| 1178 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
Roland Dreier | 87cfe32 | 2005-11-02 22:59:37 -0800 | [diff] [blame] | 1179 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | (int) (dev->fw_ver >> 16) & 0xffff, |
| 1181 | (int) dev->fw_ver & 0xffff); |
| 1182 | } |
| 1183 | |
| 1184 | static ssize_t show_hca(struct class_device *cdev, char *buf) |
| 1185 | { |
| 1186 | 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] | 1187 | switch (dev->pdev->device) { |
| 1188 | case PCI_DEVICE_ID_MELLANOX_TAVOR: |
| 1189 | return sprintf(buf, "MT23108\n"); |
| 1190 | case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: |
| 1191 | return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); |
| 1192 | case PCI_DEVICE_ID_MELLANOX_ARBEL: |
| 1193 | return sprintf(buf, "MT25208\n"); |
| 1194 | case PCI_DEVICE_ID_MELLANOX_SINAI: |
| 1195 | case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: |
| 1196 | return sprintf(buf, "MT25204\n"); |
| 1197 | default: |
| 1198 | return sprintf(buf, "unknown\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | } |
| 1200 | } |
| 1201 | |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1202 | static ssize_t show_board(struct class_device *cdev, char *buf) |
| 1203 | { |
| 1204 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); |
| 1205 | return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); |
| 1206 | } |
| 1207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| 1209 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); |
| 1210 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1211 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | |
| 1213 | static struct class_device_attribute *mthca_class_attributes[] = { |
| 1214 | &class_device_attr_hw_rev, |
| 1215 | &class_device_attr_fw_ver, |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 1216 | &class_device_attr_hca_type, |
| 1217 | &class_device_attr_board_id |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | }; |
| 1219 | |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 1220 | static int mthca_init_node_data(struct mthca_dev *dev) |
| 1221 | { |
| 1222 | struct ib_smp *in_mad = NULL; |
| 1223 | struct ib_smp *out_mad = NULL; |
| 1224 | int err = -ENOMEM; |
| 1225 | u8 status; |
| 1226 | |
| 1227 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| 1228 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| 1229 | if (!in_mad || !out_mad) |
| 1230 | goto out; |
| 1231 | |
| 1232 | init_query_mad(in_mad); |
Roland Dreier | 6dfc390 | 2006-02-02 10:04:19 -0800 | [diff] [blame] | 1233 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; |
| 1234 | |
| 1235 | err = mthca_MAD_IFC(dev, 1, 1, |
| 1236 | 1, NULL, NULL, in_mad, out_mad, |
| 1237 | &status); |
| 1238 | if (err) |
| 1239 | goto out; |
| 1240 | if (status) { |
| 1241 | err = -EINVAL; |
| 1242 | goto out; |
| 1243 | } |
| 1244 | |
| 1245 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); |
| 1246 | |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 1247 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
| 1248 | |
| 1249 | err = mthca_MAD_IFC(dev, 1, 1, |
| 1250 | 1, NULL, NULL, in_mad, out_mad, |
| 1251 | &status); |
| 1252 | if (err) |
| 1253 | goto out; |
| 1254 | if (status) { |
| 1255 | err = -EINVAL; |
| 1256 | goto out; |
| 1257 | } |
| 1258 | |
Jack Morgenstein | 6ccef1d | 2008-01-27 18:13:20 +0200 | [diff] [blame] | 1259 | if (mthca_is_memfree(dev)) |
| 1260 | dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 1261 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
| 1262 | |
| 1263 | out: |
| 1264 | kfree(in_mad); |
| 1265 | kfree(out_mad); |
| 1266 | return err; |
| 1267 | } |
| 1268 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | int mthca_register_device(struct mthca_dev *dev) |
| 1270 | { |
| 1271 | int ret; |
| 1272 | int i; |
| 1273 | |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 1274 | ret = mthca_init_node_data(dev); |
| 1275 | if (ret) |
| 1276 | return ret; |
| 1277 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); |
Roland Dreier | 1cf296b | 2005-07-07 17:57:11 -0700 | [diff] [blame] | 1279 | dev->ib_dev.owner = THIS_MODULE; |
| 1280 | |
Roland Dreier | 274c089 | 2005-09-29 14:17:48 -0700 | [diff] [blame] | 1281 | dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 1282 | dev->ib_dev.uverbs_cmd_mask = |
| 1283 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | |
| 1284 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | |
| 1285 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | |
| 1286 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | |
| 1287 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | |
| 1288 | (1ull << IB_USER_VERBS_CMD_REG_MR) | |
| 1289 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
| 1290 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | |
| 1291 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 1292 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 1293 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
| 1294 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | |
Eli Cohen | 8ebe507 | 2006-02-13 16:40:21 -0800 | [diff] [blame] | 1295 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
Roland Dreier | 883a99c | 2005-10-14 14:00:58 -0700 | [diff] [blame] | 1296 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
| 1297 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
| 1298 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | |
Roland Dreier | 5beba53 | 2006-08-18 10:41:46 -0700 | [diff] [blame] | 1299 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); |
Tom Tucker | 07ebafb | 2006-08-03 16:02:42 -0500 | [diff] [blame] | 1300 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | dev->ib_dev.phys_port_cnt = dev->limits.num_ports; |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 1302 | dev->ib_dev.num_comp_vectors = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | dev->ib_dev.dma_device = &dev->pdev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | dev->ib_dev.query_device = mthca_query_device; |
| 1305 | dev->ib_dev.query_port = mthca_query_port; |
Roland Dreier | 6dfc390 | 2006-02-02 10:04:19 -0800 | [diff] [blame] | 1306 | dev->ib_dev.modify_device = mthca_modify_device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | dev->ib_dev.modify_port = mthca_modify_port; |
| 1308 | dev->ib_dev.query_pkey = mthca_query_pkey; |
| 1309 | dev->ib_dev.query_gid = mthca_query_gid; |
Roland Dreier | 5e0b537 | 2005-07-07 17:57:16 -0700 | [diff] [blame] | 1310 | dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; |
| 1311 | dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; |
Roland Dreier | 53b8b3f | 2005-07-07 17:57:17 -0700 | [diff] [blame] | 1312 | dev->ib_dev.mmap = mthca_mmap_uar; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | dev->ib_dev.alloc_pd = mthca_alloc_pd; |
| 1314 | dev->ib_dev.dealloc_pd = mthca_dealloc_pd; |
| 1315 | dev->ib_dev.create_ah = mthca_ah_create; |
Jack Morgenstein | 1d89b1a | 2006-02-26 16:05:59 -0800 | [diff] [blame] | 1316 | dev->ib_dev.query_ah = mthca_ah_query; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | dev->ib_dev.destroy_ah = mthca_ah_destroy; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1318 | |
| 1319 | if (dev->mthca_flags & MTHCA_FLAG_SRQ) { |
| 1320 | dev->ib_dev.create_srq = mthca_create_srq; |
Eli Cohen | 8ebe507 | 2006-02-13 16:40:21 -0800 | [diff] [blame] | 1321 | dev->ib_dev.modify_srq = mthca_modify_srq; |
| 1322 | dev->ib_dev.query_srq = mthca_query_srq; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1323 | dev->ib_dev.destroy_srq = mthca_destroy_srq; |
Roland Dreier | 5beba53 | 2006-08-18 10:41:46 -0700 | [diff] [blame] | 1324 | dev->ib_dev.uverbs_cmd_mask |= |
| 1325 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | |
| 1326 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | |
| 1327 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
| 1328 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1329 | |
| 1330 | if (mthca_is_memfree(dev)) |
| 1331 | dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; |
| 1332 | else |
| 1333 | dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; |
| 1334 | } |
| 1335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | dev->ib_dev.create_qp = mthca_create_qp; |
| 1337 | dev->ib_dev.modify_qp = mthca_modify_qp; |
Eli Cohen | 8ebe507 | 2006-02-13 16:40:21 -0800 | [diff] [blame] | 1338 | dev->ib_dev.query_qp = mthca_query_qp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1339 | dev->ib_dev.destroy_qp = mthca_destroy_qp; |
| 1340 | dev->ib_dev.create_cq = mthca_create_cq; |
Roland Dreier | 4885bf6 | 2006-01-30 14:31:33 -0800 | [diff] [blame] | 1341 | dev->ib_dev.resize_cq = mthca_resize_cq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1342 | dev->ib_dev.destroy_cq = mthca_destroy_cq; |
| 1343 | dev->ib_dev.poll_cq = mthca_poll_cq; |
| 1344 | dev->ib_dev.get_dma_mr = mthca_get_dma_mr; |
| 1345 | dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; |
Roland Dreier | 24d4281 | 2005-07-07 17:57:19 -0700 | [diff] [blame] | 1346 | dev->ib_dev.reg_user_mr = mthca_reg_user_mr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | dev->ib_dev.dereg_mr = mthca_dereg_mr; |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1348 | |
| 1349 | if (dev->mthca_flags & MTHCA_FLAG_FMR) { |
| 1350 | dev->ib_dev.alloc_fmr = mthca_alloc_fmr; |
| 1351 | dev->ib_dev.unmap_fmr = mthca_unmap_fmr; |
| 1352 | dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1353 | if (mthca_is_memfree(dev)) |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 1354 | dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; |
| 1355 | else |
| 1356 | dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; |
| 1357 | } |
| 1358 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | dev->ib_dev.attach_mcast = mthca_multicast_attach; |
| 1360 | dev->ib_dev.detach_mcast = mthca_multicast_detach; |
| 1361 | dev->ib_dev.process_mad = mthca_process_mad; |
| 1362 | |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 1363 | if (mthca_is_memfree(dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; |
| 1365 | dev->ib_dev.post_send = mthca_arbel_post_send; |
| 1366 | dev->ib_dev.post_recv = mthca_arbel_post_receive; |
| 1367 | } else { |
| 1368 | dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; |
| 1369 | dev->ib_dev.post_send = mthca_tavor_post_send; |
| 1370 | dev->ib_dev.post_recv = mthca_tavor_post_receive; |
| 1371 | } |
| 1372 | |
Roland Dreier | fd9cfdd | 2006-01-30 16:45:11 -0800 | [diff] [blame] | 1373 | mutex_init(&dev->cap_mask_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | |
| 1375 | ret = ib_register_device(&dev->ib_dev); |
| 1376 | if (ret) |
| 1377 | return ret; |
| 1378 | |
| 1379 | for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) { |
| 1380 | ret = class_device_create_file(&dev->ib_dev.class_dev, |
| 1381 | mthca_class_attributes[i]); |
| 1382 | if (ret) { |
| 1383 | ib_unregister_device(&dev->ib_dev); |
| 1384 | return ret; |
| 1385 | } |
| 1386 | } |
| 1387 | |
Roland Dreier | 3d155f8 | 2005-10-27 11:03:38 -0700 | [diff] [blame] | 1388 | mthca_start_catas_poll(dev); |
| 1389 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | return 0; |
| 1391 | } |
| 1392 | |
| 1393 | void mthca_unregister_device(struct mthca_dev *dev) |
| 1394 | { |
Roland Dreier | 3d155f8 | 2005-10-27 11:03:38 -0700 | [diff] [blame] | 1395 | mthca_stop_catas_poll(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | ib_unregister_device(&dev->ib_dev); |
| 1397 | } |