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 | 2a1d9b7 | 2005-08-10 23:03:10 -0700 | [diff] [blame] | 4 | * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * This software is available to you under a choice of one of two |
| 7 | * licenses. You may choose to be licensed under the terms of the GNU |
| 8 | * General Public License (GPL) Version 2, available from the file |
| 9 | * COPYING in the main directory of this source tree, or the |
| 10 | * OpenIB.org BSD license below: |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or |
| 13 | * without modification, are permitted provided that the following |
| 14 | * conditions are met: |
| 15 | * |
| 16 | * - Redistributions of source code must retain the above |
| 17 | * copyright notice, this list of conditions and the following |
| 18 | * disclaimer. |
| 19 | * |
| 20 | * - Redistributions in binary form must reproduce the above |
| 21 | * copyright notice, this list of conditions and the following |
| 22 | * disclaimer in the documentation and/or other materials |
| 23 | * provided with the distribution. |
| 24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 32 | * SOFTWARE. |
| 33 | * |
| 34 | * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $ |
| 35 | */ |
| 36 | |
| 37 | #include <linux/config.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/module.h> |
| 39 | #include <linux/init.h> |
| 40 | #include <linux/errno.h> |
| 41 | #include <linux/pci.h> |
| 42 | #include <linux/interrupt.h> |
| 43 | |
| 44 | #include "mthca_dev.h" |
| 45 | #include "mthca_config_reg.h" |
| 46 | #include "mthca_cmd.h" |
| 47 | #include "mthca_profile.h" |
| 48 | #include "mthca_memfree.h" |
| 49 | |
| 50 | MODULE_AUTHOR("Roland Dreier"); |
| 51 | MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); |
| 52 | MODULE_LICENSE("Dual BSD/GPL"); |
| 53 | MODULE_VERSION(DRV_VERSION); |
| 54 | |
| 55 | #ifdef CONFIG_PCI_MSI |
| 56 | |
| 57 | static int msi_x = 0; |
| 58 | module_param(msi_x, int, 0444); |
| 59 | MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); |
| 60 | |
| 61 | static int msi = 0; |
| 62 | module_param(msi, int, 0444); |
| 63 | MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); |
| 64 | |
| 65 | #else /* CONFIG_PCI_MSI */ |
| 66 | |
| 67 | #define msi_x (0) |
| 68 | #define msi (0) |
| 69 | |
| 70 | #endif /* CONFIG_PCI_MSI */ |
| 71 | |
| 72 | static const char mthca_version[] __devinitdata = |
Bernhard Fischer | 177214a | 2005-06-27 14:36:39 -0700 | [diff] [blame] | 73 | DRV_NAME ": Mellanox InfiniBand HCA driver v" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | DRV_VERSION " (" DRV_RELDATE ")\n"; |
| 75 | |
| 76 | static struct mthca_profile default_profile = { |
Michael S. Tsirkin | e0f5fdc | 2005-04-16 15:26:30 -0700 | [diff] [blame] | 77 | .num_qp = 1 << 16, |
| 78 | .rdb_per_qp = 4, |
| 79 | .num_cq = 1 << 16, |
| 80 | .num_mcg = 1 << 13, |
| 81 | .num_mpt = 1 << 17, |
| 82 | .num_mtt = 1 << 20, |
| 83 | .num_udav = 1 << 15, /* Tavor only */ |
| 84 | .fmr_reserved_mtts = 1 << 18, /* Tavor only */ |
| 85 | .uarc_size = 1 << 18, /* Arbel only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | static int __devinit mthca_tune_pci(struct mthca_dev *mdev) |
| 89 | { |
| 90 | int cap; |
| 91 | u16 val; |
| 92 | |
| 93 | /* First try to max out Read Byte Count */ |
| 94 | cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); |
| 95 | if (cap) { |
| 96 | if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { |
| 97 | mthca_err(mdev, "Couldn't read PCI-X command register, " |
| 98 | "aborting.\n"); |
| 99 | return -ENODEV; |
| 100 | } |
| 101 | val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); |
| 102 | if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { |
| 103 | mthca_err(mdev, "Couldn't write PCI-X command register, " |
| 104 | "aborting.\n"); |
| 105 | return -ENODEV; |
| 106 | } |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 107 | } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); |
| 109 | |
| 110 | cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); |
| 111 | if (cap) { |
| 112 | if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { |
| 113 | mthca_err(mdev, "Couldn't read PCI Express device control " |
| 114 | "register, aborting.\n"); |
| 115 | return -ENODEV; |
| 116 | } |
| 117 | val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); |
| 118 | if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { |
| 119 | mthca_err(mdev, "Couldn't write PCI Express device control " |
| 120 | "register, aborting.\n"); |
| 121 | return -ENODEV; |
| 122 | } |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 123 | } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | mthca_info(mdev, "No PCI Express capability, " |
| 125 | "not setting Max Read Request Size.\n"); |
| 126 | |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) |
| 131 | { |
| 132 | int err; |
| 133 | u8 status; |
| 134 | |
| 135 | err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); |
| 136 | if (err) { |
| 137 | mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); |
| 138 | return err; |
| 139 | } |
| 140 | if (status) { |
| 141 | mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " |
| 142 | "aborting.\n", status); |
| 143 | return -EINVAL; |
| 144 | } |
| 145 | if (dev_lim->min_page_sz > PAGE_SIZE) { |
| 146 | mthca_err(mdev, "HCA minimum page size of %d bigger than " |
| 147 | "kernel PAGE_SIZE of %ld, aborting.\n", |
| 148 | dev_lim->min_page_sz, PAGE_SIZE); |
| 149 | return -ENODEV; |
| 150 | } |
| 151 | if (dev_lim->num_ports > MTHCA_MAX_PORTS) { |
| 152 | mthca_err(mdev, "HCA has %d ports, but we only support %d, " |
| 153 | "aborting.\n", |
| 154 | dev_lim->num_ports, MTHCA_MAX_PORTS); |
| 155 | return -ENODEV; |
| 156 | } |
| 157 | |
Michael S. Tsirkin | cbd2981 | 2006-01-30 15:20:35 -0800 | [diff] [blame] | 158 | if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { |
| 159 | mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " |
| 160 | "PCI resource 2 size of 0x%lx, aborting.\n", |
| 161 | dev_lim->uar_size, pci_resource_len(mdev->pdev, 2)); |
| 162 | return -ENODEV; |
| 163 | } |
| 164 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | mdev->limits.num_ports = dev_lim->num_ports; |
| 166 | mdev->limits.vl_cap = dev_lim->max_vl; |
| 167 | mdev->limits.mtu_cap = dev_lim->max_mtu; |
| 168 | mdev->limits.gid_table_len = dev_lim->max_gids; |
| 169 | mdev->limits.pkey_table_len = dev_lim->max_pkeys; |
| 170 | mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; |
| 171 | mdev->limits.max_sg = dev_lim->max_sg; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 172 | mdev->limits.max_wqes = dev_lim->max_qp_sz; |
| 173 | mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | mdev->limits.reserved_qps = dev_lim->reserved_qps; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 175 | mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | mdev->limits.reserved_srqs = dev_lim->reserved_srqs; |
| 177 | mdev->limits.reserved_eecs = dev_lim->reserved_eecs; |
Jack Morgenstein | 77369ed | 2005-11-09 11:26:07 -0800 | [diff] [blame] | 178 | mdev->limits.max_desc_sz = dev_lim->max_desc_sz; |
Jack Morgenstein | efaae8f | 2005-10-10 13:48:07 -0700 | [diff] [blame] | 179 | /* |
| 180 | * Subtract 1 from the limit because we need to allocate a |
| 181 | * spare CQE so the HCA HW can tell the difference between an |
| 182 | * empty CQ and a full CQ. |
| 183 | */ |
| 184 | mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | mdev->limits.reserved_cqs = dev_lim->reserved_cqs; |
| 186 | mdev->limits.reserved_eqs = dev_lim->reserved_eqs; |
| 187 | mdev->limits.reserved_mtts = dev_lim->reserved_mtts; |
| 188 | mdev->limits.reserved_mrws = dev_lim->reserved_mrws; |
| 189 | mdev->limits.reserved_uars = dev_lim->reserved_uars; |
| 190 | mdev->limits.reserved_pds = dev_lim->reserved_pds; |
Roland Dreier | da6561c | 2005-08-17 07:39:10 -0700 | [diff] [blame] | 191 | mdev->limits.port_width_cap = dev_lim->max_port_width; |
Jack Morgenstein | 0f69ce1 | 2005-11-04 16:03:32 -0800 | [diff] [blame] | 192 | mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); |
Jack Morgenstein | 33033b79 | 2005-09-26 12:30:02 -0700 | [diff] [blame] | 193 | mdev->limits.flags = dev_lim->flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
| 195 | /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. |
| 196 | May be doable since hardware supports it for SRQ. |
| 197 | |
| 198 | IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. |
| 199 | |
| 200 | IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not |
| 201 | supported by driver. */ |
| 202 | mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
| 203 | IB_DEVICE_PORT_ACTIVE_EVENT | |
| 204 | IB_DEVICE_SYS_IMAGE_GUID | |
| 205 | IB_DEVICE_RC_RNR_NAK_GEN; |
| 206 | |
| 207 | if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) |
| 208 | mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
| 209 | |
| 210 | if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) |
| 211 | mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
| 212 | |
| 213 | if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) |
| 214 | mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; |
| 215 | |
| 216 | if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) |
| 217 | mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
| 218 | |
| 219 | if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) |
| 220 | mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; |
| 221 | |
| 222 | if (dev_lim->flags & DEV_LIM_FLAG_SRQ) |
| 223 | mdev->mthca_flags |= MTHCA_FLAG_SRQ; |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static int __devinit mthca_init_tavor(struct mthca_dev *mdev) |
| 229 | { |
| 230 | u8 status; |
| 231 | int err; |
| 232 | struct mthca_dev_lim dev_lim; |
| 233 | struct mthca_profile profile; |
| 234 | struct mthca_init_hca_param init_hca; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
| 236 | err = mthca_SYS_EN(mdev, &status); |
| 237 | if (err) { |
| 238 | mthca_err(mdev, "SYS_EN command failed, aborting.\n"); |
| 239 | return err; |
| 240 | } |
| 241 | if (status) { |
| 242 | mthca_err(mdev, "SYS_EN returned status 0x%02x, " |
| 243 | "aborting.\n", status); |
| 244 | return -EINVAL; |
| 245 | } |
| 246 | |
| 247 | err = mthca_QUERY_FW(mdev, &status); |
| 248 | if (err) { |
| 249 | mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); |
| 250 | goto err_disable; |
| 251 | } |
| 252 | if (status) { |
| 253 | mthca_err(mdev, "QUERY_FW returned status 0x%02x, " |
| 254 | "aborting.\n", status); |
| 255 | err = -EINVAL; |
| 256 | goto err_disable; |
| 257 | } |
| 258 | err = mthca_QUERY_DDR(mdev, &status); |
| 259 | if (err) { |
| 260 | mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); |
| 261 | goto err_disable; |
| 262 | } |
| 263 | if (status) { |
| 264 | mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " |
| 265 | "aborting.\n", status); |
| 266 | err = -EINVAL; |
| 267 | goto err_disable; |
| 268 | } |
| 269 | |
| 270 | err = mthca_dev_lim(mdev, &dev_lim); |
Jack Morgenstein | aa2f936 | 2006-01-05 16:12:01 -0800 | [diff] [blame] | 271 | if (err) { |
| 272 | mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); |
| 273 | goto err_disable; |
| 274 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | profile = default_profile; |
| 277 | profile.num_uar = dev_lim.uar_size / PAGE_SIZE; |
| 278 | profile.uarc_size = 0; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 279 | if (mdev->mthca_flags & MTHCA_FLAG_SRQ) |
| 280 | profile.num_srq = dev_lim.max_srqs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); |
| 283 | if (err < 0) |
| 284 | goto err_disable; |
| 285 | |
| 286 | err = mthca_INIT_HCA(mdev, &init_hca, &status); |
| 287 | if (err) { |
| 288 | mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); |
| 289 | goto err_disable; |
| 290 | } |
| 291 | if (status) { |
| 292 | mthca_err(mdev, "INIT_HCA returned status 0x%02x, " |
| 293 | "aborting.\n", status); |
| 294 | err = -EINVAL; |
| 295 | goto err_disable; |
| 296 | } |
| 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | return 0; |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | err_disable: |
| 301 | mthca_SYS_DIS(mdev, &status); |
| 302 | |
| 303 | return err; |
| 304 | } |
| 305 | |
| 306 | static int __devinit mthca_load_fw(struct mthca_dev *mdev) |
| 307 | { |
| 308 | u8 status; |
| 309 | int err; |
| 310 | |
| 311 | /* FIXME: use HCA-attached memory for FW if present */ |
| 312 | |
| 313 | mdev->fw.arbel.fw_icm = |
| 314 | mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, |
| 315 | GFP_HIGHUSER | __GFP_NOWARN); |
| 316 | if (!mdev->fw.arbel.fw_icm) { |
| 317 | mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); |
| 318 | return -ENOMEM; |
| 319 | } |
| 320 | |
| 321 | err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); |
| 322 | if (err) { |
| 323 | mthca_err(mdev, "MAP_FA command failed, aborting.\n"); |
| 324 | goto err_free; |
| 325 | } |
| 326 | if (status) { |
| 327 | mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); |
| 328 | err = -EINVAL; |
| 329 | goto err_free; |
| 330 | } |
| 331 | err = mthca_RUN_FW(mdev, &status); |
| 332 | if (err) { |
| 333 | mthca_err(mdev, "RUN_FW command failed, aborting.\n"); |
| 334 | goto err_unmap_fa; |
| 335 | } |
| 336 | if (status) { |
| 337 | mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); |
| 338 | err = -EINVAL; |
| 339 | goto err_unmap_fa; |
| 340 | } |
| 341 | |
| 342 | return 0; |
| 343 | |
| 344 | err_unmap_fa: |
| 345 | mthca_UNMAP_FA(mdev, &status); |
| 346 | |
| 347 | err_free: |
| 348 | mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| 349 | return err; |
| 350 | } |
| 351 | |
| 352 | static int __devinit mthca_init_icm(struct mthca_dev *mdev, |
| 353 | struct mthca_dev_lim *dev_lim, |
| 354 | struct mthca_init_hca_param *init_hca, |
| 355 | u64 icm_size) |
| 356 | { |
| 357 | u64 aux_pages; |
| 358 | u8 status; |
| 359 | int err; |
| 360 | |
| 361 | err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); |
| 362 | if (err) { |
| 363 | mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); |
| 364 | return err; |
| 365 | } |
| 366 | if (status) { |
| 367 | mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " |
| 368 | "aborting.\n", status); |
| 369 | return -EINVAL; |
| 370 | } |
| 371 | |
| 372 | mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", |
| 373 | (unsigned long long) icm_size >> 10, |
| 374 | (unsigned long long) aux_pages << 2); |
| 375 | |
| 376 | mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, |
| 377 | GFP_HIGHUSER | __GFP_NOWARN); |
| 378 | if (!mdev->fw.arbel.aux_icm) { |
| 379 | mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); |
| 380 | return -ENOMEM; |
| 381 | } |
| 382 | |
| 383 | err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); |
| 384 | if (err) { |
| 385 | mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); |
| 386 | goto err_free_aux; |
| 387 | } |
| 388 | if (status) { |
| 389 | mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); |
| 390 | err = -EINVAL; |
| 391 | goto err_free_aux; |
| 392 | } |
| 393 | |
| 394 | err = mthca_map_eq_icm(mdev, init_hca->eqc_base); |
| 395 | if (err) { |
| 396 | mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); |
| 397 | goto err_unmap_aux; |
| 398 | } |
| 399 | |
| 400 | mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, |
Roland Dreier | 44ea668 | 2005-04-16 15:26:24 -0700 | [diff] [blame] | 401 | MTHCA_MTT_SEG_SIZE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | mdev->limits.num_mtt_segs, |
| 403 | mdev->limits.reserved_mtts, 1); |
| 404 | if (!mdev->mr_table.mtt_table) { |
| 405 | mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); |
| 406 | err = -ENOMEM; |
| 407 | goto err_unmap_eq; |
| 408 | } |
| 409 | |
| 410 | mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, |
| 411 | dev_lim->mpt_entry_sz, |
| 412 | mdev->limits.num_mpts, |
| 413 | mdev->limits.reserved_mrws, 1); |
| 414 | if (!mdev->mr_table.mpt_table) { |
| 415 | mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); |
| 416 | err = -ENOMEM; |
| 417 | goto err_unmap_mtt; |
| 418 | } |
| 419 | |
| 420 | mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, |
| 421 | dev_lim->qpc_entry_sz, |
| 422 | mdev->limits.num_qps, |
| 423 | mdev->limits.reserved_qps, 0); |
| 424 | if (!mdev->qp_table.qp_table) { |
| 425 | mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); |
| 426 | err = -ENOMEM; |
| 427 | goto err_unmap_mpt; |
| 428 | } |
| 429 | |
| 430 | mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, |
| 431 | dev_lim->eqpc_entry_sz, |
| 432 | mdev->limits.num_qps, |
| 433 | mdev->limits.reserved_qps, 0); |
| 434 | if (!mdev->qp_table.eqp_table) { |
| 435 | mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); |
| 436 | err = -ENOMEM; |
| 437 | goto err_unmap_qp; |
| 438 | } |
| 439 | |
Roland Dreier | 08aeb14 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 440 | mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, |
| 441 | MTHCA_RDB_ENTRY_SIZE, |
| 442 | mdev->limits.num_qps << |
| 443 | mdev->qp_table.rdb_shift, |
| 444 | 0, 0); |
| 445 | if (!mdev->qp_table.rdb_table) { |
| 446 | mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); |
| 447 | err = -ENOMEM; |
Roland Dreier | 19272d4 | 2005-04-16 15:26:35 -0700 | [diff] [blame] | 448 | goto err_unmap_eqp; |
Roland Dreier | 08aeb14 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 452 | dev_lim->cqc_entry_sz, |
| 453 | mdev->limits.num_cqs, |
| 454 | mdev->limits.reserved_cqs, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | if (!mdev->cq_table.table) { |
| 456 | mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); |
| 457 | err = -ENOMEM; |
Roland Dreier | 08aeb14 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 458 | goto err_unmap_rdb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | } |
| 460 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 461 | if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { |
| 462 | mdev->srq_table.table = |
| 463 | mthca_alloc_icm_table(mdev, init_hca->srqc_base, |
| 464 | dev_lim->srq_entry_sz, |
| 465 | mdev->limits.num_srqs, |
| 466 | mdev->limits.reserved_srqs, 0); |
| 467 | if (!mdev->srq_table.table) { |
| 468 | mthca_err(mdev, "Failed to map SRQ context memory, " |
| 469 | "aborting.\n"); |
| 470 | err = -ENOMEM; |
| 471 | goto err_unmap_cq; |
| 472 | } |
| 473 | } |
| 474 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | /* |
| 476 | * It's not strictly required, but for simplicity just map the |
| 477 | * whole multicast group table now. The table isn't very big |
| 478 | * and it's a lot easier than trying to track ref counts. |
| 479 | */ |
| 480 | mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, |
| 481 | MTHCA_MGM_ENTRY_SIZE, |
| 482 | mdev->limits.num_mgms + |
| 483 | mdev->limits.num_amgms, |
| 484 | mdev->limits.num_mgms + |
| 485 | mdev->limits.num_amgms, |
| 486 | 0); |
| 487 | if (!mdev->mcg_table.table) { |
| 488 | mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); |
| 489 | err = -ENOMEM; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 490 | goto err_unmap_srq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | return 0; |
| 494 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 495 | err_unmap_srq: |
| 496 | if (mdev->mthca_flags & MTHCA_FLAG_SRQ) |
| 497 | mthca_free_icm_table(mdev, mdev->srq_table.table); |
| 498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | err_unmap_cq: |
| 500 | mthca_free_icm_table(mdev, mdev->cq_table.table); |
| 501 | |
Roland Dreier | 08aeb14 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 502 | err_unmap_rdb: |
| 503 | mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); |
| 504 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | err_unmap_eqp: |
| 506 | mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); |
| 507 | |
| 508 | err_unmap_qp: |
| 509 | mthca_free_icm_table(mdev, mdev->qp_table.qp_table); |
| 510 | |
| 511 | err_unmap_mpt: |
| 512 | mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); |
| 513 | |
| 514 | err_unmap_mtt: |
| 515 | mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); |
| 516 | |
| 517 | err_unmap_eq: |
| 518 | mthca_unmap_eq_icm(mdev); |
| 519 | |
| 520 | err_unmap_aux: |
| 521 | mthca_UNMAP_ICM_AUX(mdev, &status); |
| 522 | |
| 523 | err_free_aux: |
| 524 | mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); |
| 525 | |
| 526 | return err; |
| 527 | } |
| 528 | |
Michael S. Tsirkin | aba7a22 | 2005-09-30 13:55:50 -0700 | [diff] [blame] | 529 | static void mthca_free_icms(struct mthca_dev *mdev) |
| 530 | { |
| 531 | u8 status; |
| 532 | |
| 533 | mthca_free_icm_table(mdev, mdev->mcg_table.table); |
| 534 | if (mdev->mthca_flags & MTHCA_FLAG_SRQ) |
| 535 | mthca_free_icm_table(mdev, mdev->srq_table.table); |
| 536 | mthca_free_icm_table(mdev, mdev->cq_table.table); |
| 537 | mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); |
| 538 | mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); |
| 539 | mthca_free_icm_table(mdev, mdev->qp_table.qp_table); |
| 540 | mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); |
| 541 | mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); |
| 542 | mthca_unmap_eq_icm(mdev); |
| 543 | |
| 544 | mthca_UNMAP_ICM_AUX(mdev, &status); |
| 545 | mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); |
| 546 | } |
| 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | static int __devinit mthca_init_arbel(struct mthca_dev *mdev) |
| 549 | { |
| 550 | struct mthca_dev_lim dev_lim; |
| 551 | struct mthca_profile profile; |
| 552 | struct mthca_init_hca_param init_hca; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | u64 icm_size; |
| 554 | u8 status; |
| 555 | int err; |
| 556 | |
| 557 | err = mthca_QUERY_FW(mdev, &status); |
| 558 | if (err) { |
| 559 | mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); |
| 560 | return err; |
| 561 | } |
| 562 | if (status) { |
| 563 | mthca_err(mdev, "QUERY_FW returned status 0x%02x, " |
| 564 | "aborting.\n", status); |
| 565 | return -EINVAL; |
| 566 | } |
| 567 | |
| 568 | err = mthca_ENABLE_LAM(mdev, &status); |
| 569 | if (err) { |
| 570 | mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); |
| 571 | return err; |
| 572 | } |
| 573 | if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { |
| 574 | mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); |
| 575 | mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; |
| 576 | } else if (status) { |
| 577 | mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " |
| 578 | "aborting.\n", status); |
| 579 | return -EINVAL; |
| 580 | } |
| 581 | |
| 582 | err = mthca_load_fw(mdev); |
| 583 | if (err) { |
| 584 | mthca_err(mdev, "Failed to start FW, aborting.\n"); |
| 585 | goto err_disable; |
| 586 | } |
| 587 | |
| 588 | err = mthca_dev_lim(mdev, &dev_lim); |
| 589 | if (err) { |
| 590 | mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); |
| 591 | goto err_stop_fw; |
| 592 | } |
| 593 | |
| 594 | profile = default_profile; |
| 595 | profile.num_uar = dev_lim.uar_size / PAGE_SIZE; |
| 596 | profile.num_udav = 0; |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 597 | if (mdev->mthca_flags & MTHCA_FLAG_SRQ) |
| 598 | profile.num_srq = dev_lim.max_srqs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
| 600 | icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); |
| 601 | if ((int) icm_size < 0) { |
| 602 | err = icm_size; |
| 603 | goto err_stop_fw; |
| 604 | } |
| 605 | |
| 606 | err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); |
| 607 | if (err) |
| 608 | goto err_stop_fw; |
| 609 | |
| 610 | err = mthca_INIT_HCA(mdev, &init_hca, &status); |
| 611 | if (err) { |
| 612 | mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); |
| 613 | goto err_free_icm; |
| 614 | } |
| 615 | if (status) { |
| 616 | mthca_err(mdev, "INIT_HCA returned status 0x%02x, " |
| 617 | "aborting.\n", status); |
| 618 | err = -EINVAL; |
| 619 | goto err_free_icm; |
| 620 | } |
| 621 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | return 0; |
| 623 | |
| 624 | err_free_icm: |
Michael S. Tsirkin | aba7a22 | 2005-09-30 13:55:50 -0700 | [diff] [blame] | 625 | mthca_free_icms(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | |
| 627 | err_stop_fw: |
| 628 | mthca_UNMAP_FA(mdev, &status); |
| 629 | mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| 630 | |
| 631 | err_disable: |
| 632 | if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) |
| 633 | mthca_DISABLE_LAM(mdev, &status); |
| 634 | |
| 635 | return err; |
| 636 | } |
| 637 | |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 638 | static void mthca_close_hca(struct mthca_dev *mdev) |
| 639 | { |
| 640 | u8 status; |
| 641 | |
| 642 | mthca_CLOSE_HCA(mdev, 0, &status); |
| 643 | |
| 644 | if (mthca_is_memfree(mdev)) { |
Michael S. Tsirkin | aba7a22 | 2005-09-30 13:55:50 -0700 | [diff] [blame] | 645 | mthca_free_icms(mdev); |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 646 | |
| 647 | mthca_UNMAP_FA(mdev, &status); |
| 648 | mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| 649 | |
| 650 | if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) |
| 651 | mthca_DISABLE_LAM(mdev, &status); |
| 652 | } else |
| 653 | mthca_SYS_DIS(mdev, &status); |
| 654 | } |
| 655 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | static int __devinit mthca_init_hca(struct mthca_dev *mdev) |
| 657 | { |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 658 | u8 status; |
| 659 | int err; |
| 660 | struct mthca_adapter adapter; |
| 661 | |
Roland Dreier | d10ddbf | 2005-04-16 15:26:32 -0700 | [diff] [blame] | 662 | if (mthca_is_memfree(mdev)) |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 663 | err = mthca_init_arbel(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | else |
Michael S. Tsirkin | 2e8b981 | 2005-08-13 21:19:38 -0700 | [diff] [blame] | 665 | err = mthca_init_tavor(mdev); |
| 666 | |
| 667 | if (err) |
| 668 | return err; |
| 669 | |
| 670 | err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); |
| 671 | if (err) { |
| 672 | mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); |
| 673 | goto err_close; |
| 674 | } |
| 675 | if (status) { |
| 676 | mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " |
| 677 | "aborting.\n", status); |
| 678 | err = -EINVAL; |
| 679 | goto err_close; |
| 680 | } |
| 681 | |
| 682 | mdev->eq_table.inta_pin = adapter.inta_pin; |
| 683 | mdev->rev_id = adapter.revision_id; |
| 684 | memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); |
| 685 | |
| 686 | return 0; |
| 687 | |
| 688 | err_close: |
| 689 | mthca_close_hca(mdev); |
| 690 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | static int __devinit mthca_setup_hca(struct mthca_dev *dev) |
| 694 | { |
| 695 | int err; |
| 696 | u8 status; |
| 697 | |
| 698 | MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); |
| 699 | |
| 700 | err = mthca_init_uar_table(dev); |
| 701 | if (err) { |
| 702 | mthca_err(dev, "Failed to initialize " |
| 703 | "user access region table, aborting.\n"); |
| 704 | return err; |
| 705 | } |
| 706 | |
| 707 | err = mthca_uar_alloc(dev, &dev->driver_uar); |
| 708 | if (err) { |
| 709 | mthca_err(dev, "Failed to allocate driver access region, " |
| 710 | "aborting.\n"); |
| 711 | goto err_uar_table_free; |
| 712 | } |
| 713 | |
| 714 | dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); |
| 715 | if (!dev->kar) { |
| 716 | mthca_err(dev, "Couldn't map kernel access region, " |
| 717 | "aborting.\n"); |
| 718 | err = -ENOMEM; |
| 719 | goto err_uar_free; |
| 720 | } |
| 721 | |
| 722 | err = mthca_init_pd_table(dev); |
| 723 | if (err) { |
| 724 | mthca_err(dev, "Failed to initialize " |
| 725 | "protection domain table, aborting.\n"); |
| 726 | goto err_kar_unmap; |
| 727 | } |
| 728 | |
| 729 | err = mthca_init_mr_table(dev); |
| 730 | if (err) { |
| 731 | mthca_err(dev, "Failed to initialize " |
| 732 | "memory region table, aborting.\n"); |
| 733 | goto err_pd_table_free; |
| 734 | } |
| 735 | |
Roland Dreier | 99264c1 | 2005-07-07 17:57:18 -0700 | [diff] [blame] | 736 | err = mthca_pd_alloc(dev, 1, &dev->driver_pd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | if (err) { |
| 738 | mthca_err(dev, "Failed to create driver PD, " |
| 739 | "aborting.\n"); |
| 740 | goto err_mr_table_free; |
| 741 | } |
| 742 | |
| 743 | err = mthca_init_eq_table(dev); |
| 744 | if (err) { |
| 745 | mthca_err(dev, "Failed to initialize " |
| 746 | "event queue table, aborting.\n"); |
| 747 | goto err_pd_free; |
| 748 | } |
| 749 | |
| 750 | err = mthca_cmd_use_events(dev); |
| 751 | if (err) { |
| 752 | mthca_err(dev, "Failed to switch to event-driven " |
| 753 | "firmware commands, aborting.\n"); |
| 754 | goto err_eq_table_free; |
| 755 | } |
| 756 | |
| 757 | err = mthca_NOP(dev, &status); |
| 758 | if (err || status) { |
Roland Dreier | 4ad8117 | 2005-04-16 15:26:21 -0700 | [diff] [blame] | 759 | mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", |
| 760 | dev->mthca_flags & MTHCA_FLAG_MSI_X ? |
| 761 | dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : |
| 762 | dev->pdev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) |
| 764 | mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); |
| 765 | else |
| 766 | mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); |
| 767 | |
| 768 | goto err_cmd_poll; |
| 769 | } |
| 770 | |
| 771 | mthca_dbg(dev, "NOP command IRQ test passed\n"); |
| 772 | |
| 773 | err = mthca_init_cq_table(dev); |
| 774 | if (err) { |
| 775 | mthca_err(dev, "Failed to initialize " |
| 776 | "completion queue table, aborting.\n"); |
| 777 | goto err_cmd_poll; |
| 778 | } |
| 779 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 780 | err = mthca_init_srq_table(dev); |
| 781 | if (err) { |
| 782 | mthca_err(dev, "Failed to initialize " |
| 783 | "shared receive queue table, aborting.\n"); |
| 784 | goto err_cq_table_free; |
| 785 | } |
| 786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | err = mthca_init_qp_table(dev); |
| 788 | if (err) { |
| 789 | mthca_err(dev, "Failed to initialize " |
| 790 | "queue pair table, aborting.\n"); |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 791 | goto err_srq_table_free; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | err = mthca_init_av_table(dev); |
| 795 | if (err) { |
| 796 | mthca_err(dev, "Failed to initialize " |
| 797 | "address vector table, aborting.\n"); |
| 798 | goto err_qp_table_free; |
| 799 | } |
| 800 | |
| 801 | err = mthca_init_mcg_table(dev); |
| 802 | if (err) { |
| 803 | mthca_err(dev, "Failed to initialize " |
| 804 | "multicast group table, aborting.\n"); |
| 805 | goto err_av_table_free; |
| 806 | } |
| 807 | |
| 808 | return 0; |
| 809 | |
| 810 | err_av_table_free: |
| 811 | mthca_cleanup_av_table(dev); |
| 812 | |
| 813 | err_qp_table_free: |
| 814 | mthca_cleanup_qp_table(dev); |
| 815 | |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 816 | err_srq_table_free: |
| 817 | mthca_cleanup_srq_table(dev); |
| 818 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | err_cq_table_free: |
| 820 | mthca_cleanup_cq_table(dev); |
| 821 | |
| 822 | err_cmd_poll: |
| 823 | mthca_cmd_use_polling(dev); |
| 824 | |
| 825 | err_eq_table_free: |
| 826 | mthca_cleanup_eq_table(dev); |
| 827 | |
| 828 | err_pd_free: |
| 829 | mthca_pd_free(dev, &dev->driver_pd); |
| 830 | |
| 831 | err_mr_table_free: |
| 832 | mthca_cleanup_mr_table(dev); |
| 833 | |
| 834 | err_pd_table_free: |
| 835 | mthca_cleanup_pd_table(dev); |
| 836 | |
| 837 | err_kar_unmap: |
| 838 | iounmap(dev->kar); |
| 839 | |
| 840 | err_uar_free: |
| 841 | mthca_uar_free(dev, &dev->driver_uar); |
| 842 | |
| 843 | err_uar_table_free: |
| 844 | mthca_cleanup_uar_table(dev); |
| 845 | return err; |
| 846 | } |
| 847 | |
| 848 | static int __devinit mthca_request_regions(struct pci_dev *pdev, |
| 849 | int ddr_hidden) |
| 850 | { |
| 851 | int err; |
| 852 | |
| 853 | /* |
| 854 | * We can't just use pci_request_regions() because the MSI-X |
| 855 | * table is right in the middle of the first BAR. If we did |
| 856 | * pci_request_region and grab all of the first BAR, then |
| 857 | * setting up MSI-X would fail, since the PCI core wants to do |
| 858 | * request_mem_region on the MSI-X vector table. |
| 859 | * |
| 860 | * So just request what we need right now, and request any |
| 861 | * other regions we need when setting up EQs. |
| 862 | */ |
| 863 | if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| 864 | MTHCA_HCR_SIZE, DRV_NAME)) |
| 865 | return -EBUSY; |
| 866 | |
| 867 | err = pci_request_region(pdev, 2, DRV_NAME); |
| 868 | if (err) |
| 869 | goto err_bar2_failed; |
| 870 | |
| 871 | if (!ddr_hidden) { |
| 872 | err = pci_request_region(pdev, 4, DRV_NAME); |
| 873 | if (err) |
| 874 | goto err_bar4_failed; |
| 875 | } |
| 876 | |
| 877 | return 0; |
| 878 | |
| 879 | err_bar4_failed: |
| 880 | pci_release_region(pdev, 2); |
| 881 | |
| 882 | err_bar2_failed: |
| 883 | release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| 884 | MTHCA_HCR_SIZE); |
| 885 | |
| 886 | return err; |
| 887 | } |
| 888 | |
| 889 | static void mthca_release_regions(struct pci_dev *pdev, |
| 890 | int ddr_hidden) |
| 891 | { |
| 892 | if (!ddr_hidden) |
| 893 | pci_release_region(pdev, 4); |
| 894 | |
| 895 | pci_release_region(pdev, 2); |
| 896 | |
| 897 | release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| 898 | MTHCA_HCR_SIZE); |
| 899 | } |
| 900 | |
| 901 | static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) |
| 902 | { |
| 903 | struct msix_entry entries[3]; |
| 904 | int err; |
| 905 | |
| 906 | entries[0].entry = 0; |
| 907 | entries[1].entry = 1; |
| 908 | entries[2].entry = 2; |
| 909 | |
| 910 | err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); |
| 911 | if (err) { |
| 912 | if (err > 0) |
| 913 | mthca_info(mdev, "Only %d MSI-X vectors available, " |
| 914 | "not using MSI-X\n", err); |
| 915 | return err; |
| 916 | } |
| 917 | |
| 918 | mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; |
| 919 | mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; |
| 920 | mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; |
| 921 | |
| 922 | return 0; |
| 923 | } |
| 924 | |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 925 | /* Types of supported HCA */ |
| 926 | enum { |
| 927 | TAVOR, /* MT23108 */ |
| 928 | ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ |
| 929 | ARBEL_NATIVE, /* MT25208 with extended features */ |
| 930 | SINAI /* MT25204 */ |
| 931 | }; |
| 932 | |
| 933 | #define MTHCA_FW_VER(major, minor, subminor) \ |
| 934 | (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) |
| 935 | |
| 936 | static struct { |
| 937 | u64 latest_fw; |
Eli Cohen | 651eaac | 2006-03-02 12:40:46 -0800 | [diff] [blame] | 938 | u32 flags; |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 939 | } mthca_hca_table[] = { |
Roland Dreier | 6226bb5 | 2006-03-02 13:56:37 -0800 | [diff] [blame] | 940 | [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0), |
Eli Cohen | 651eaac | 2006-03-02 12:40:46 -0800 | [diff] [blame] | 941 | .flags = 0 }, |
Roland Dreier | 6226bb5 | 2006-03-02 13:56:37 -0800 | [diff] [blame] | 942 | [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400), |
Eli Cohen | 651eaac | 2006-03-02 12:40:46 -0800 | [diff] [blame] | 943 | .flags = MTHCA_FLAG_PCIE }, |
| 944 | [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), |
| 945 | .flags = MTHCA_FLAG_MEMFREE | |
| 946 | MTHCA_FLAG_PCIE }, |
Roland Dreier | 6226bb5 | 2006-03-02 13:56:37 -0800 | [diff] [blame] | 947 | [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800), |
Eli Cohen | 651eaac | 2006-03-02 12:40:46 -0800 | [diff] [blame] | 948 | .flags = MTHCA_FLAG_MEMFREE | |
| 949 | MTHCA_FLAG_PCIE | |
| 950 | MTHCA_FLAG_SINAI_OPT } |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 951 | }; |
| 952 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | static int __devinit mthca_init_one(struct pci_dev *pdev, |
| 954 | const struct pci_device_id *id) |
| 955 | { |
| 956 | static int mthca_version_printed = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | int ddr_hidden = 0; |
| 958 | int err; |
| 959 | struct mthca_dev *mdev; |
| 960 | |
| 961 | if (!mthca_version_printed) { |
| 962 | printk(KERN_INFO "%s", mthca_version); |
| 963 | ++mthca_version_printed; |
| 964 | } |
| 965 | |
Adrian Bunk | 982245f | 2005-07-17 04:22:20 +0200 | [diff] [blame] | 966 | printk(KERN_INFO PFX "Initializing %s\n", |
| 967 | pci_name(pdev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 969 | if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { |
Adrian Bunk | 982245f | 2005-07-17 04:22:20 +0200 | [diff] [blame] | 970 | printk(KERN_ERR PFX "%s has invalid driver data %lx\n", |
| 971 | pci_name(pdev), id->driver_data); |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 972 | return -ENODEV; |
| 973 | } |
| 974 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | err = pci_enable_device(pdev); |
| 976 | if (err) { |
| 977 | dev_err(&pdev->dev, "Cannot enable PCI device, " |
| 978 | "aborting.\n"); |
| 979 | return err; |
| 980 | } |
| 981 | |
| 982 | /* |
| 983 | * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not |
| 984 | * be present) |
| 985 | */ |
| 986 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || |
| 987 | pci_resource_len(pdev, 0) != 1 << 20) { |
Bernhard Fischer | 177214a | 2005-06-27 14:36:39 -0700 | [diff] [blame] | 988 | dev_err(&pdev->dev, "Missing DCS, aborting.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | err = -ENODEV; |
| 990 | goto err_disable_pdev; |
| 991 | } |
Michael S. Tsirkin | cbd2981 | 2006-01-30 15:20:35 -0800 | [diff] [blame] | 992 | if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { |
Bernhard Fischer | 177214a | 2005-06-27 14:36:39 -0700 | [diff] [blame] | 993 | dev_err(&pdev->dev, "Missing UAR, aborting.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | err = -ENODEV; |
| 995 | goto err_disable_pdev; |
| 996 | } |
| 997 | if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) |
| 998 | ddr_hidden = 1; |
| 999 | |
| 1000 | err = mthca_request_regions(pdev, ddr_hidden); |
| 1001 | if (err) { |
| 1002 | dev_err(&pdev->dev, "Cannot obtain PCI resources, " |
| 1003 | "aborting.\n"); |
| 1004 | goto err_disable_pdev; |
| 1005 | } |
| 1006 | |
| 1007 | pci_set_master(pdev); |
| 1008 | |
| 1009 | err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
| 1010 | if (err) { |
| 1011 | dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); |
| 1012 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 1013 | if (err) { |
| 1014 | dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); |
| 1015 | goto err_free_res; |
| 1016 | } |
| 1017 | } |
| 1018 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
| 1019 | if (err) { |
| 1020 | dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " |
| 1021 | "consistent PCI DMA mask.\n"); |
| 1022 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
| 1023 | if (err) { |
| 1024 | dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " |
| 1025 | "aborting.\n"); |
| 1026 | goto err_free_res; |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); |
| 1031 | if (!mdev) { |
| 1032 | dev_err(&pdev->dev, "Device struct alloc failed, " |
| 1033 | "aborting.\n"); |
| 1034 | err = -ENOMEM; |
| 1035 | goto err_free_res; |
| 1036 | } |
| 1037 | |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 1038 | mdev->pdev = pdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | |
Eli Cohen | 651eaac | 2006-03-02 12:40:46 -0800 | [diff] [blame] | 1040 | mdev->mthca_flags = mthca_hca_table[id->driver_data].flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | if (ddr_hidden) |
| 1042 | mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; |
| 1043 | |
| 1044 | /* |
| 1045 | * Now reset the HCA before we touch the PCI capabilities or |
| 1046 | * attempt a firmware command, since a boot ROM may have left |
| 1047 | * the HCA in an undefined state. |
| 1048 | */ |
| 1049 | err = mthca_reset(mdev); |
| 1050 | if (err) { |
| 1051 | mthca_err(mdev, "Failed to reset HCA, aborting.\n"); |
| 1052 | goto err_free_dev; |
| 1053 | } |
| 1054 | |
| 1055 | if (msi_x && !mthca_enable_msi_x(mdev)) |
| 1056 | mdev->mthca_flags |= MTHCA_FLAG_MSI_X; |
| 1057 | if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && |
| 1058 | !pci_enable_msi(pdev)) |
| 1059 | mdev->mthca_flags |= MTHCA_FLAG_MSI; |
| 1060 | |
Roland Dreier | 80fd823 | 2005-06-27 14:36:45 -0700 | [diff] [blame] | 1061 | if (mthca_cmd_init(mdev)) { |
| 1062 | mthca_err(mdev, "Failed to init command interface, aborting.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | goto err_free_dev; |
| 1064 | } |
| 1065 | |
| 1066 | err = mthca_tune_pci(mdev); |
| 1067 | if (err) |
Roland Dreier | 80fd823 | 2005-06-27 14:36:45 -0700 | [diff] [blame] | 1068 | goto err_cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | |
| 1070 | err = mthca_init_hca(mdev); |
| 1071 | if (err) |
Roland Dreier | 80fd823 | 2005-06-27 14:36:45 -0700 | [diff] [blame] | 1072 | goto err_cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 1074 | if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { |
Roland Dreier | 87cfe32 | 2005-11-02 22:59:37 -0800 | [diff] [blame] | 1075 | mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n", |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 1076 | (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, |
| 1077 | (int) (mdev->fw_ver & 0xffff), |
| 1078 | (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), |
| 1079 | (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, |
| 1080 | (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); |
| 1081 | mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); |
| 1082 | } |
| 1083 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | err = mthca_setup_hca(mdev); |
| 1085 | if (err) |
| 1086 | goto err_close; |
| 1087 | |
| 1088 | err = mthca_register_device(mdev); |
| 1089 | if (err) |
| 1090 | goto err_cleanup; |
| 1091 | |
| 1092 | err = mthca_create_agents(mdev); |
| 1093 | if (err) |
| 1094 | goto err_unregister; |
| 1095 | |
| 1096 | pci_set_drvdata(pdev, mdev); |
| 1097 | |
| 1098 | return 0; |
| 1099 | |
| 1100 | err_unregister: |
| 1101 | mthca_unregister_device(mdev); |
| 1102 | |
| 1103 | err_cleanup: |
| 1104 | mthca_cleanup_mcg_table(mdev); |
| 1105 | mthca_cleanup_av_table(mdev); |
| 1106 | mthca_cleanup_qp_table(mdev); |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1107 | mthca_cleanup_srq_table(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | mthca_cleanup_cq_table(mdev); |
| 1109 | mthca_cmd_use_polling(mdev); |
| 1110 | mthca_cleanup_eq_table(mdev); |
| 1111 | |
| 1112 | mthca_pd_free(mdev, &mdev->driver_pd); |
| 1113 | |
| 1114 | mthca_cleanup_mr_table(mdev); |
| 1115 | mthca_cleanup_pd_table(mdev); |
| 1116 | mthca_cleanup_uar_table(mdev); |
| 1117 | |
| 1118 | err_close: |
| 1119 | mthca_close_hca(mdev); |
| 1120 | |
Roland Dreier | 80fd823 | 2005-06-27 14:36:45 -0700 | [diff] [blame] | 1121 | err_cmd: |
| 1122 | mthca_cmd_cleanup(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | |
| 1124 | err_free_dev: |
| 1125 | if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) |
| 1126 | pci_disable_msix(pdev); |
| 1127 | if (mdev->mthca_flags & MTHCA_FLAG_MSI) |
| 1128 | pci_disable_msi(pdev); |
| 1129 | |
| 1130 | ib_dealloc_device(&mdev->ib_dev); |
| 1131 | |
| 1132 | err_free_res: |
| 1133 | mthca_release_regions(pdev, ddr_hidden); |
| 1134 | |
| 1135 | err_disable_pdev: |
| 1136 | pci_disable_device(pdev); |
| 1137 | pci_set_drvdata(pdev, NULL); |
| 1138 | return err; |
| 1139 | } |
| 1140 | |
| 1141 | static void __devexit mthca_remove_one(struct pci_dev *pdev) |
| 1142 | { |
| 1143 | struct mthca_dev *mdev = pci_get_drvdata(pdev); |
| 1144 | u8 status; |
| 1145 | int p; |
| 1146 | |
| 1147 | if (mdev) { |
| 1148 | mthca_free_agents(mdev); |
| 1149 | mthca_unregister_device(mdev); |
| 1150 | |
| 1151 | for (p = 1; p <= mdev->limits.num_ports; ++p) |
| 1152 | mthca_CLOSE_IB(mdev, p, &status); |
| 1153 | |
| 1154 | mthca_cleanup_mcg_table(mdev); |
| 1155 | mthca_cleanup_av_table(mdev); |
| 1156 | mthca_cleanup_qp_table(mdev); |
Roland Dreier | ec34a92 | 2005-08-19 10:59:31 -0700 | [diff] [blame] | 1157 | mthca_cleanup_srq_table(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | mthca_cleanup_cq_table(mdev); |
| 1159 | mthca_cmd_use_polling(mdev); |
| 1160 | mthca_cleanup_eq_table(mdev); |
| 1161 | |
| 1162 | mthca_pd_free(mdev, &mdev->driver_pd); |
| 1163 | |
| 1164 | mthca_cleanup_mr_table(mdev); |
| 1165 | mthca_cleanup_pd_table(mdev); |
| 1166 | |
| 1167 | iounmap(mdev->kar); |
| 1168 | mthca_uar_free(mdev, &mdev->driver_uar); |
| 1169 | mthca_cleanup_uar_table(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | mthca_close_hca(mdev); |
Roland Dreier | 80fd823 | 2005-06-27 14:36:45 -0700 | [diff] [blame] | 1171 | mthca_cmd_cleanup(mdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | |
| 1173 | if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) |
| 1174 | pci_disable_msix(pdev); |
| 1175 | if (mdev->mthca_flags & MTHCA_FLAG_MSI) |
| 1176 | pci_disable_msi(pdev); |
| 1177 | |
| 1178 | ib_dealloc_device(&mdev->ib_dev); |
| 1179 | mthca_release_regions(pdev, mdev->mthca_flags & |
| 1180 | MTHCA_FLAG_DDR_HIDDEN); |
| 1181 | pci_disable_device(pdev); |
| 1182 | pci_set_drvdata(pdev, NULL); |
| 1183 | } |
| 1184 | } |
| 1185 | |
| 1186 | static struct pci_device_id mthca_pci_table[] = { |
| 1187 | { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), |
| 1188 | .driver_data = TAVOR }, |
| 1189 | { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), |
| 1190 | .driver_data = TAVOR }, |
| 1191 | { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), |
| 1192 | .driver_data = ARBEL_COMPAT }, |
| 1193 | { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), |
| 1194 | .driver_data = ARBEL_COMPAT }, |
| 1195 | { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), |
| 1196 | .driver_data = ARBEL_NATIVE }, |
| 1197 | { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), |
| 1198 | .driver_data = ARBEL_NATIVE }, |
Roland Dreier | 68a3c21 | 2005-04-16 15:26:34 -0700 | [diff] [blame] | 1199 | { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), |
| 1200 | .driver_data = SINAI }, |
| 1201 | { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), |
| 1202 | .driver_data = SINAI }, |
| 1203 | { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), |
| 1204 | .driver_data = SINAI }, |
| 1205 | { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), |
| 1206 | .driver_data = SINAI }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | { 0, } |
| 1208 | }; |
| 1209 | |
| 1210 | MODULE_DEVICE_TABLE(pci, mthca_pci_table); |
| 1211 | |
| 1212 | static struct pci_driver mthca_driver = { |
Bernhard Fischer | 177214a | 2005-06-27 14:36:39 -0700 | [diff] [blame] | 1213 | .name = DRV_NAME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | .id_table = mthca_pci_table, |
| 1215 | .probe = mthca_init_one, |
| 1216 | .remove = __devexit_p(mthca_remove_one) |
| 1217 | }; |
| 1218 | |
| 1219 | static int __init mthca_init(void) |
| 1220 | { |
| 1221 | int ret; |
| 1222 | |
| 1223 | ret = pci_register_driver(&mthca_driver); |
| 1224 | return ret < 0 ? ret : 0; |
| 1225 | } |
| 1226 | |
| 1227 | static void __exit mthca_cleanup(void) |
| 1228 | { |
| 1229 | pci_unregister_driver(&mthca_driver); |
| 1230 | } |
| 1231 | |
| 1232 | module_init(mthca_init); |
| 1233 | module_exit(mthca_cleanup); |