1219820Sjeff/* 2219820Sjeff * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3219820Sjeff * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4219820Sjeff * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 5219820Sjeff * 6219820Sjeff * This software is available to you under a choice of one of two 7219820Sjeff * licenses. You may choose to be licensed under the terms of the GNU 8219820Sjeff * General Public License (GPL) Version 2, available from the file 9219820Sjeff * COPYING in the main directory of this source tree, or the 10219820Sjeff * OpenIB.org BSD license below: 11219820Sjeff * 12219820Sjeff * Redistribution and use in source and binary forms, with or 13219820Sjeff * without modification, are permitted provided that the following 14219820Sjeff * conditions are met: 15219820Sjeff * 16219820Sjeff * - Redistributions of source code must retain the above 17219820Sjeff * copyright notice, this list of conditions and the following 18219820Sjeff * disclaimer. 19219820Sjeff * 20219820Sjeff * - Redistributions in binary form must reproduce the above 21219820Sjeff * copyright notice, this list of conditions and the following 22219820Sjeff * disclaimer in the documentation and/or other materials 23219820Sjeff * provided with the distribution. 24219820Sjeff * 25219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32219820Sjeff * SOFTWARE. 33219820Sjeff */ 34219820Sjeff 35219820Sjeff#include <linux/module.h> 36219820Sjeff#include <linux/errno.h> 37219820Sjeff#include <linux/pci.h> 38219820Sjeff#include <linux/interrupt.h> 39219820Sjeff 40219820Sjeff#include "mthca_dev.h" 41219820Sjeff#include "mthca_config_reg.h" 42219820Sjeff#include "mthca_cmd.h" 43219820Sjeff#include "mthca_profile.h" 44219820Sjeff#include "mthca_memfree.h" 45219820Sjeff#include "mthca_wqe.h" 46219820Sjeff 47219820SjeffMODULE_AUTHOR("Roland Dreier"); 48219820SjeffMODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 49219820SjeffMODULE_LICENSE("Dual BSD/GPL"); 50219820SjeffMODULE_VERSION(DRV_VERSION); 51219820Sjeff 52219820Sjeff#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 53219820Sjeff 54219820Sjeffint mthca_debug_level = 0; 55219820Sjeffmodule_param_named(debug_level, mthca_debug_level, int, 0644); 56219820SjeffMODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 57219820Sjeff 58219820Sjeff#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 59219820Sjeff 60219820Sjeff#ifdef CONFIG_PCI_MSI 61219820Sjeff 62219820Sjeffstatic int msi_x = 1; 63219820Sjeffmodule_param(msi_x, int, 0444); 64219820SjeffMODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 65219820Sjeff 66219820Sjeff#else /* CONFIG_PCI_MSI */ 67219820Sjeff 68219820Sjeff#define msi_x (0) 69219820Sjeff 70219820Sjeff#endif /* CONFIG_PCI_MSI */ 71219820Sjeff 72219820Sjeffstatic int tune_pci = 0; 73219820Sjeffmodule_param(tune_pci, int, 0444); 74219820SjeffMODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 75219820Sjeff 76219820SjeffDEFINE_MUTEX(mthca_device_mutex); 77219820Sjeff 78219820Sjeff#define MTHCA_DEFAULT_NUM_QP (1 << 16) 79219820Sjeff#define MTHCA_DEFAULT_RDB_PER_QP (1 << 2) 80219820Sjeff#define MTHCA_DEFAULT_NUM_CQ (1 << 16) 81219820Sjeff#define MTHCA_DEFAULT_NUM_MCG (1 << 13) 82219820Sjeff#define MTHCA_DEFAULT_NUM_MPT (1 << 17) 83219820Sjeff#define MTHCA_DEFAULT_NUM_MTT (1 << 20) 84219820Sjeff#define MTHCA_DEFAULT_NUM_UDAV (1 << 15) 85219820Sjeff#define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18) 86219820Sjeff#define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18) 87219820Sjeff 88219820Sjeffstatic struct mthca_profile hca_profile = { 89219820Sjeff .num_qp = MTHCA_DEFAULT_NUM_QP, 90219820Sjeff .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP, 91219820Sjeff .num_cq = MTHCA_DEFAULT_NUM_CQ, 92219820Sjeff .num_mcg = MTHCA_DEFAULT_NUM_MCG, 93219820Sjeff .num_mpt = MTHCA_DEFAULT_NUM_MPT, 94219820Sjeff .num_mtt = MTHCA_DEFAULT_NUM_MTT, 95219820Sjeff .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */ 96219820Sjeff .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */ 97219820Sjeff .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */ 98219820Sjeff}; 99219820Sjeff 100219820Sjeffmodule_param_named(num_qp, hca_profile.num_qp, int, 0444); 101219820SjeffMODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA"); 102219820Sjeff 103219820Sjeffmodule_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444); 104219820SjeffMODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP"); 105219820Sjeff 106219820Sjeffmodule_param_named(num_cq, hca_profile.num_cq, int, 0444); 107219820SjeffMODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA"); 108219820Sjeff 109219820Sjeffmodule_param_named(num_mcg, hca_profile.num_mcg, int, 0444); 110219820SjeffMODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA"); 111219820Sjeff 112219820Sjeffmodule_param_named(num_mpt, hca_profile.num_mpt, int, 0444); 113219820SjeffMODULE_PARM_DESC(num_mpt, 114219820Sjeff "maximum number of memory protection table entries per HCA"); 115219820Sjeff 116219820Sjeffmodule_param_named(num_mtt, hca_profile.num_mtt, int, 0444); 117219820SjeffMODULE_PARM_DESC(num_mtt, 118219820Sjeff "maximum number of memory translation table segments per HCA"); 119219820Sjeff 120219820Sjeffmodule_param_named(num_udav, hca_profile.num_udav, int, 0444); 121219820SjeffMODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA"); 122219820Sjeff 123219820Sjeffmodule_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444); 124219820SjeffMODULE_PARM_DESC(fmr_reserved_mtts, 125219820Sjeff "number of memory translation table segments reserved for FMR"); 126219820Sjeff 127219820Sjeffstatic int log_mtts_per_seg; 128219820Sjeffmodule_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444); 129219820SjeffMODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)"); 130219820Sjeff 131219820Sjeffstatic char mthca_version[] __devinitdata = 132219820Sjeff DRV_NAME ": Mellanox InfiniBand HCA driver v" 133219820Sjeff DRV_VERSION " (" DRV_RELDATE ")\n"; 134219820Sjeff 135219820Sjeffstatic int mthca_tune_pci(struct mthca_dev *mdev) 136219820Sjeff{ 137219820Sjeff if (!tune_pci) 138219820Sjeff return 0; 139219820Sjeff 140219820Sjeff /* First try to max out Read Byte Count */ 141219820Sjeff if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) { 142219820Sjeff if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) { 143219820Sjeff mthca_err(mdev, "Couldn't set PCI-X max read count, " 144219820Sjeff "aborting.\n"); 145219820Sjeff return -ENODEV; 146219820Sjeff } 147219820Sjeff } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 148219820Sjeff mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 149219820Sjeff 150219820Sjeff if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) { 151219820Sjeff if (pcie_set_readrq(mdev->pdev, 4096)) { 152219820Sjeff mthca_err(mdev, "Couldn't write PCI Express read request, " 153219820Sjeff "aborting.\n"); 154219820Sjeff return -ENODEV; 155219820Sjeff } 156219820Sjeff } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 157219820Sjeff mthca_info(mdev, "No PCI Express capability, " 158219820Sjeff "not setting Max Read Request Size.\n"); 159219820Sjeff 160219820Sjeff return 0; 161219820Sjeff} 162219820Sjeff 163219820Sjeffstatic int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 164219820Sjeff{ 165219820Sjeff int err; 166219820Sjeff u8 status; 167219820Sjeff 168219820Sjeff mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8; 169219820Sjeff err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); 170219820Sjeff if (err) { 171219820Sjeff mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 172219820Sjeff return err; 173219820Sjeff } 174219820Sjeff if (status) { 175219820Sjeff mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " 176219820Sjeff "aborting.\n", status); 177219820Sjeff return -EINVAL; 178219820Sjeff } 179219820Sjeff if (dev_lim->min_page_sz > PAGE_SIZE) { 180219820Sjeff mthca_err(mdev, "HCA minimum page size of %d bigger than " 181219820Sjeff "kernel PAGE_SIZE of %d, aborting.\n", 182219820Sjeff dev_lim->min_page_sz, PAGE_SIZE); 183219820Sjeff return -ENODEV; 184219820Sjeff } 185219820Sjeff if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 186219820Sjeff mthca_err(mdev, "HCA has %d ports, but we only support %d, " 187219820Sjeff "aborting.\n", 188219820Sjeff dev_lim->num_ports, MTHCA_MAX_PORTS); 189219820Sjeff return -ENODEV; 190219820Sjeff } 191219820Sjeff 192219820Sjeff if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { 193219820Sjeff mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " 194219820Sjeff "PCI resource 2 size of 0x%llx, aborting.\n", 195219820Sjeff dev_lim->uar_size, 196219820Sjeff (unsigned long long)pci_resource_len(mdev->pdev, 2)); 197219820Sjeff return -ENODEV; 198219820Sjeff } 199219820Sjeff 200219820Sjeff mdev->limits.num_ports = dev_lim->num_ports; 201219820Sjeff mdev->limits.vl_cap = dev_lim->max_vl; 202219820Sjeff mdev->limits.mtu_cap = dev_lim->max_mtu; 203219820Sjeff mdev->limits.gid_table_len = dev_lim->max_gids; 204219820Sjeff mdev->limits.pkey_table_len = dev_lim->max_pkeys; 205219820Sjeff mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 206219820Sjeff /* 207219820Sjeff * Need to allow for worst case send WQE overhead and check 208219820Sjeff * whether max_desc_sz imposes a lower limit than max_sg; UD 209219820Sjeff * send has the biggest overhead. 210219820Sjeff */ 211219820Sjeff mdev->limits.max_sg = min_t(int, dev_lim->max_sg, 212219820Sjeff (dev_lim->max_desc_sz - 213219820Sjeff sizeof (struct mthca_next_seg) - 214219820Sjeff (mthca_is_memfree(mdev) ? 215219820Sjeff sizeof (struct mthca_arbel_ud_seg) : 216219820Sjeff sizeof (struct mthca_tavor_ud_seg))) / 217219820Sjeff sizeof (struct mthca_data_seg)); 218219820Sjeff mdev->limits.max_wqes = dev_lim->max_qp_sz; 219219820Sjeff mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 220219820Sjeff mdev->limits.reserved_qps = dev_lim->reserved_qps; 221219820Sjeff mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 222219820Sjeff mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 223219820Sjeff mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 224219820Sjeff mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 225219820Sjeff mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 226219820Sjeff /* 227219820Sjeff * Subtract 1 from the limit because we need to allocate a 228219820Sjeff * spare CQE so the HCA HW can tell the difference between an 229219820Sjeff * empty CQ and a full CQ. 230219820Sjeff */ 231219820Sjeff mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 232219820Sjeff mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 233219820Sjeff mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 234219820Sjeff mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 235219820Sjeff mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 236219820Sjeff mdev->limits.reserved_uars = dev_lim->reserved_uars; 237219820Sjeff mdev->limits.reserved_pds = dev_lim->reserved_pds; 238219820Sjeff mdev->limits.port_width_cap = dev_lim->max_port_width; 239219820Sjeff mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 240219820Sjeff mdev->limits.flags = dev_lim->flags; 241219820Sjeff /* 242219820Sjeff * For old FW that doesn't return static rate support, use a 243219820Sjeff * value of 0x3 (only static rate values of 0 or 1 are handled), 244219820Sjeff * except on Sinai, where even old FW can handle static rate 245219820Sjeff * values of 2 and 3. 246219820Sjeff */ 247219820Sjeff if (dev_lim->stat_rate_support) 248219820Sjeff mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 249219820Sjeff else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 250219820Sjeff mdev->limits.stat_rate_support = 0xf; 251219820Sjeff else 252219820Sjeff mdev->limits.stat_rate_support = 0x3; 253219820Sjeff 254219820Sjeff /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 255219820Sjeff May be doable since hardware supports it for SRQ. 256219820Sjeff 257219820Sjeff IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 258219820Sjeff 259219820Sjeff IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 260219820Sjeff supported by driver. */ 261219820Sjeff mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 262219820Sjeff IB_DEVICE_PORT_ACTIVE_EVENT | 263219820Sjeff IB_DEVICE_SYS_IMAGE_GUID | 264219820Sjeff IB_DEVICE_RC_RNR_NAK_GEN; 265219820Sjeff 266219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 267219820Sjeff mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 268219820Sjeff 269219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 270219820Sjeff mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 271219820Sjeff 272219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 273219820Sjeff mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 274219820Sjeff 275219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 276219820Sjeff mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 277219820Sjeff 278219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 279219820Sjeff mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 280219820Sjeff 281219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 282219820Sjeff mdev->mthca_flags |= MTHCA_FLAG_SRQ; 283219820Sjeff 284219820Sjeff if (mthca_is_memfree(mdev)) 285219820Sjeff if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM) 286219820Sjeff mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 287219820Sjeff 288219820Sjeff return 0; 289219820Sjeff} 290219820Sjeff 291219820Sjeffstatic int mthca_init_tavor(struct mthca_dev *mdev) 292219820Sjeff{ 293219820Sjeff s64 size; 294219820Sjeff u8 status; 295219820Sjeff int err; 296219820Sjeff struct mthca_dev_lim dev_lim; 297219820Sjeff struct mthca_profile profile; 298219820Sjeff struct mthca_init_hca_param init_hca; 299219820Sjeff 300219820Sjeff err = mthca_SYS_EN(mdev, &status); 301219820Sjeff if (err) { 302219820Sjeff mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 303219820Sjeff return err; 304219820Sjeff } 305219820Sjeff if (status) { 306219820Sjeff mthca_err(mdev, "SYS_EN returned status 0x%02x, " 307219820Sjeff "aborting.\n", status); 308219820Sjeff return -EINVAL; 309219820Sjeff } 310219820Sjeff 311219820Sjeff err = mthca_QUERY_FW(mdev, &status); 312219820Sjeff if (err) { 313219820Sjeff mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 314219820Sjeff goto err_disable; 315219820Sjeff } 316219820Sjeff if (status) { 317219820Sjeff mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 318219820Sjeff "aborting.\n", status); 319219820Sjeff err = -EINVAL; 320219820Sjeff goto err_disable; 321219820Sjeff } 322219820Sjeff err = mthca_QUERY_DDR(mdev, &status); 323219820Sjeff if (err) { 324219820Sjeff mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 325219820Sjeff goto err_disable; 326219820Sjeff } 327219820Sjeff if (status) { 328219820Sjeff mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 329219820Sjeff "aborting.\n", status); 330219820Sjeff err = -EINVAL; 331219820Sjeff goto err_disable; 332219820Sjeff } 333219820Sjeff 334219820Sjeff err = mthca_dev_lim(mdev, &dev_lim); 335219820Sjeff if (err) { 336219820Sjeff mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 337219820Sjeff goto err_disable; 338219820Sjeff } 339219820Sjeff 340219820Sjeff profile = hca_profile; 341219820Sjeff profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 342219820Sjeff profile.uarc_size = 0; 343219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 344219820Sjeff profile.num_srq = dev_lim.max_srqs; 345219820Sjeff 346219820Sjeff size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 347219820Sjeff if (size < 0) { 348219820Sjeff err = size; 349219820Sjeff goto err_disable; 350219820Sjeff } 351219820Sjeff 352219820Sjeff err = mthca_INIT_HCA(mdev, &init_hca, &status); 353219820Sjeff if (err) { 354219820Sjeff mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 355219820Sjeff goto err_disable; 356219820Sjeff } 357219820Sjeff if (status) { 358219820Sjeff mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 359219820Sjeff "aborting.\n", status); 360219820Sjeff err = -EINVAL; 361219820Sjeff goto err_disable; 362219820Sjeff } 363219820Sjeff 364219820Sjeff return 0; 365219820Sjeff 366219820Sjefferr_disable: 367219820Sjeff mthca_SYS_DIS(mdev, &status); 368219820Sjeff 369219820Sjeff return err; 370219820Sjeff} 371219820Sjeff 372219820Sjeffstatic int mthca_load_fw(struct mthca_dev *mdev) 373219820Sjeff{ 374219820Sjeff u8 status; 375219820Sjeff int err; 376219820Sjeff 377219820Sjeff /* FIXME: use HCA-attached memory for FW if present */ 378219820Sjeff 379219820Sjeff mdev->fw.arbel.fw_icm = 380219820Sjeff mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 381219820Sjeff GFP_HIGHUSER | __GFP_NOWARN, 0); 382219820Sjeff if (!mdev->fw.arbel.fw_icm) { 383219820Sjeff mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 384219820Sjeff return -ENOMEM; 385219820Sjeff } 386219820Sjeff 387219820Sjeff err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 388219820Sjeff if (err) { 389219820Sjeff mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 390219820Sjeff goto err_free; 391219820Sjeff } 392219820Sjeff if (status) { 393219820Sjeff mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 394219820Sjeff err = -EINVAL; 395219820Sjeff goto err_free; 396219820Sjeff } 397219820Sjeff err = mthca_RUN_FW(mdev, &status); 398219820Sjeff if (err) { 399219820Sjeff mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 400219820Sjeff goto err_unmap_fa; 401219820Sjeff } 402219820Sjeff if (status) { 403219820Sjeff mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 404219820Sjeff err = -EINVAL; 405219820Sjeff goto err_unmap_fa; 406219820Sjeff } 407219820Sjeff 408219820Sjeff return 0; 409219820Sjeff 410219820Sjefferr_unmap_fa: 411219820Sjeff mthca_UNMAP_FA(mdev, &status); 412219820Sjeff 413219820Sjefferr_free: 414219820Sjeff mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 415219820Sjeff return err; 416219820Sjeff} 417219820Sjeff 418219820Sjeffstatic int mthca_init_icm(struct mthca_dev *mdev, 419219820Sjeff struct mthca_dev_lim *dev_lim, 420219820Sjeff struct mthca_init_hca_param *init_hca, 421219820Sjeff u64 icm_size) 422219820Sjeff{ 423219820Sjeff u64 aux_pages; 424219820Sjeff u8 status; 425219820Sjeff int err; 426219820Sjeff 427219820Sjeff err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 428219820Sjeff if (err) { 429219820Sjeff mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 430219820Sjeff return err; 431219820Sjeff } 432219820Sjeff if (status) { 433219820Sjeff mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 434219820Sjeff "aborting.\n", status); 435219820Sjeff return -EINVAL; 436219820Sjeff } 437219820Sjeff 438219820Sjeff mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 439219820Sjeff (unsigned long long) icm_size >> 10, 440219820Sjeff (unsigned long long) aux_pages << 2); 441219820Sjeff 442219820Sjeff mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 443219820Sjeff GFP_HIGHUSER | __GFP_NOWARN, 0); 444219820Sjeff if (!mdev->fw.arbel.aux_icm) { 445219820Sjeff mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 446219820Sjeff return -ENOMEM; 447219820Sjeff } 448219820Sjeff 449219820Sjeff err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 450219820Sjeff if (err) { 451219820Sjeff mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 452219820Sjeff goto err_free_aux; 453219820Sjeff } 454219820Sjeff if (status) { 455219820Sjeff mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 456219820Sjeff err = -EINVAL; 457219820Sjeff goto err_free_aux; 458219820Sjeff } 459219820Sjeff 460219820Sjeff err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 461219820Sjeff if (err) { 462219820Sjeff mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 463219820Sjeff goto err_unmap_aux; 464219820Sjeff } 465219820Sjeff 466219820Sjeff /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */ 467219820Sjeff mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size, 468219820Sjeff dma_get_cache_alignment()) / mdev->limits.mtt_seg_size; 469219820Sjeff 470219820Sjeff mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 471219820Sjeff mdev->limits.mtt_seg_size, 472219820Sjeff mdev->limits.num_mtt_segs, 473219820Sjeff mdev->limits.reserved_mtts, 474219820Sjeff 1, 0); 475219820Sjeff if (!mdev->mr_table.mtt_table) { 476219820Sjeff mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 477219820Sjeff err = -ENOMEM; 478219820Sjeff goto err_unmap_eq; 479219820Sjeff } 480219820Sjeff 481219820Sjeff mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 482219820Sjeff dev_lim->mpt_entry_sz, 483219820Sjeff mdev->limits.num_mpts, 484219820Sjeff mdev->limits.reserved_mrws, 485219820Sjeff 1, 1); 486219820Sjeff if (!mdev->mr_table.mpt_table) { 487219820Sjeff mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 488219820Sjeff err = -ENOMEM; 489219820Sjeff goto err_unmap_mtt; 490219820Sjeff } 491219820Sjeff 492219820Sjeff mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 493219820Sjeff dev_lim->qpc_entry_sz, 494219820Sjeff mdev->limits.num_qps, 495219820Sjeff mdev->limits.reserved_qps, 496219820Sjeff 0, 0); 497219820Sjeff if (!mdev->qp_table.qp_table) { 498219820Sjeff mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 499219820Sjeff err = -ENOMEM; 500219820Sjeff goto err_unmap_mpt; 501219820Sjeff } 502219820Sjeff 503219820Sjeff mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 504219820Sjeff dev_lim->eqpc_entry_sz, 505219820Sjeff mdev->limits.num_qps, 506219820Sjeff mdev->limits.reserved_qps, 507219820Sjeff 0, 0); 508219820Sjeff if (!mdev->qp_table.eqp_table) { 509219820Sjeff mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 510219820Sjeff err = -ENOMEM; 511219820Sjeff goto err_unmap_qp; 512219820Sjeff } 513219820Sjeff 514219820Sjeff mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 515219820Sjeff MTHCA_RDB_ENTRY_SIZE, 516219820Sjeff mdev->limits.num_qps << 517219820Sjeff mdev->qp_table.rdb_shift, 0, 518219820Sjeff 0, 0); 519219820Sjeff if (!mdev->qp_table.rdb_table) { 520219820Sjeff mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 521219820Sjeff err = -ENOMEM; 522219820Sjeff goto err_unmap_eqp; 523219820Sjeff } 524219820Sjeff 525219820Sjeff mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 526219820Sjeff dev_lim->cqc_entry_sz, 527219820Sjeff mdev->limits.num_cqs, 528219820Sjeff mdev->limits.reserved_cqs, 529219820Sjeff 0, 0); 530219820Sjeff if (!mdev->cq_table.table) { 531219820Sjeff mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 532219820Sjeff err = -ENOMEM; 533219820Sjeff goto err_unmap_rdb; 534219820Sjeff } 535219820Sjeff 536219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 537219820Sjeff mdev->srq_table.table = 538219820Sjeff mthca_alloc_icm_table(mdev, init_hca->srqc_base, 539219820Sjeff dev_lim->srq_entry_sz, 540219820Sjeff mdev->limits.num_srqs, 541219820Sjeff mdev->limits.reserved_srqs, 542219820Sjeff 0, 0); 543219820Sjeff if (!mdev->srq_table.table) { 544219820Sjeff mthca_err(mdev, "Failed to map SRQ context memory, " 545219820Sjeff "aborting.\n"); 546219820Sjeff err = -ENOMEM; 547219820Sjeff goto err_unmap_cq; 548219820Sjeff } 549219820Sjeff } 550219820Sjeff 551219820Sjeff /* 552219820Sjeff * It's not strictly required, but for simplicity just map the 553219820Sjeff * whole multicast group table now. The table isn't very big 554219820Sjeff * and it's a lot easier than trying to track ref counts. 555219820Sjeff */ 556219820Sjeff mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 557219820Sjeff MTHCA_MGM_ENTRY_SIZE, 558219820Sjeff mdev->limits.num_mgms + 559219820Sjeff mdev->limits.num_amgms, 560219820Sjeff mdev->limits.num_mgms + 561219820Sjeff mdev->limits.num_amgms, 562219820Sjeff 0, 0); 563219820Sjeff if (!mdev->mcg_table.table) { 564219820Sjeff mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 565219820Sjeff err = -ENOMEM; 566219820Sjeff goto err_unmap_srq; 567219820Sjeff } 568219820Sjeff 569219820Sjeff return 0; 570219820Sjeff 571219820Sjefferr_unmap_srq: 572219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 573219820Sjeff mthca_free_icm_table(mdev, mdev->srq_table.table); 574219820Sjeff 575219820Sjefferr_unmap_cq: 576219820Sjeff mthca_free_icm_table(mdev, mdev->cq_table.table); 577219820Sjeff 578219820Sjefferr_unmap_rdb: 579219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 580219820Sjeff 581219820Sjefferr_unmap_eqp: 582219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 583219820Sjeff 584219820Sjefferr_unmap_qp: 585219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 586219820Sjeff 587219820Sjefferr_unmap_mpt: 588219820Sjeff mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 589219820Sjeff 590219820Sjefferr_unmap_mtt: 591219820Sjeff mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 592219820Sjeff 593219820Sjefferr_unmap_eq: 594219820Sjeff mthca_unmap_eq_icm(mdev); 595219820Sjeff 596219820Sjefferr_unmap_aux: 597219820Sjeff mthca_UNMAP_ICM_AUX(mdev, &status); 598219820Sjeff 599219820Sjefferr_free_aux: 600219820Sjeff mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 601219820Sjeff 602219820Sjeff return err; 603219820Sjeff} 604219820Sjeff 605219820Sjeffstatic void mthca_free_icms(struct mthca_dev *mdev) 606219820Sjeff{ 607219820Sjeff u8 status; 608219820Sjeff 609219820Sjeff mthca_free_icm_table(mdev, mdev->mcg_table.table); 610219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 611219820Sjeff mthca_free_icm_table(mdev, mdev->srq_table.table); 612219820Sjeff mthca_free_icm_table(mdev, mdev->cq_table.table); 613219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 614219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 615219820Sjeff mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 616219820Sjeff mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 617219820Sjeff mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 618219820Sjeff mthca_unmap_eq_icm(mdev); 619219820Sjeff 620219820Sjeff mthca_UNMAP_ICM_AUX(mdev, &status); 621219820Sjeff mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 622219820Sjeff} 623219820Sjeff 624219820Sjeffstatic int mthca_init_arbel(struct mthca_dev *mdev) 625219820Sjeff{ 626219820Sjeff struct mthca_dev_lim dev_lim; 627219820Sjeff struct mthca_profile profile; 628219820Sjeff struct mthca_init_hca_param init_hca; 629219820Sjeff s64 icm_size; 630219820Sjeff u8 status; 631219820Sjeff int err; 632219820Sjeff 633219820Sjeff err = mthca_QUERY_FW(mdev, &status); 634219820Sjeff if (err) { 635219820Sjeff mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 636219820Sjeff return err; 637219820Sjeff } 638219820Sjeff if (status) { 639219820Sjeff mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 640219820Sjeff "aborting.\n", status); 641219820Sjeff return -EINVAL; 642219820Sjeff } 643219820Sjeff 644219820Sjeff err = mthca_ENABLE_LAM(mdev, &status); 645219820Sjeff if (err) { 646219820Sjeff mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 647219820Sjeff return err; 648219820Sjeff } 649219820Sjeff if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 650219820Sjeff mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 651219820Sjeff mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 652219820Sjeff } else if (status) { 653219820Sjeff mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 654219820Sjeff "aborting.\n", status); 655219820Sjeff return -EINVAL; 656219820Sjeff } 657219820Sjeff 658219820Sjeff err = mthca_load_fw(mdev); 659219820Sjeff if (err) { 660219820Sjeff mthca_err(mdev, "Failed to start FW, aborting.\n"); 661219820Sjeff goto err_disable; 662219820Sjeff } 663219820Sjeff 664219820Sjeff err = mthca_dev_lim(mdev, &dev_lim); 665219820Sjeff if (err) { 666219820Sjeff mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 667219820Sjeff goto err_stop_fw; 668219820Sjeff } 669219820Sjeff 670219820Sjeff profile = hca_profile; 671219820Sjeff profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 672219820Sjeff profile.num_udav = 0; 673219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 674219820Sjeff profile.num_srq = dev_lim.max_srqs; 675219820Sjeff 676219820Sjeff icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 677219820Sjeff if (icm_size < 0) { 678219820Sjeff err = icm_size; 679219820Sjeff goto err_stop_fw; 680219820Sjeff } 681219820Sjeff 682219820Sjeff err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 683219820Sjeff if (err) 684219820Sjeff goto err_stop_fw; 685219820Sjeff 686219820Sjeff err = mthca_INIT_HCA(mdev, &init_hca, &status); 687219820Sjeff if (err) { 688219820Sjeff mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 689219820Sjeff goto err_free_icm; 690219820Sjeff } 691219820Sjeff if (status) { 692219820Sjeff mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 693219820Sjeff "aborting.\n", status); 694219820Sjeff err = -EINVAL; 695219820Sjeff goto err_free_icm; 696219820Sjeff } 697219820Sjeff 698219820Sjeff return 0; 699219820Sjeff 700219820Sjefferr_free_icm: 701219820Sjeff mthca_free_icms(mdev); 702219820Sjeff 703219820Sjefferr_stop_fw: 704219820Sjeff mthca_UNMAP_FA(mdev, &status); 705219820Sjeff mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 706219820Sjeff 707219820Sjefferr_disable: 708219820Sjeff if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 709219820Sjeff mthca_DISABLE_LAM(mdev, &status); 710219820Sjeff 711219820Sjeff return err; 712219820Sjeff} 713219820Sjeff 714219820Sjeffstatic void mthca_close_hca(struct mthca_dev *mdev) 715219820Sjeff{ 716219820Sjeff u8 status; 717219820Sjeff 718219820Sjeff mthca_CLOSE_HCA(mdev, 0, &status); 719219820Sjeff 720219820Sjeff if (mthca_is_memfree(mdev)) { 721219820Sjeff mthca_free_icms(mdev); 722219820Sjeff 723219820Sjeff mthca_UNMAP_FA(mdev, &status); 724219820Sjeff mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 725219820Sjeff 726219820Sjeff if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 727219820Sjeff mthca_DISABLE_LAM(mdev, &status); 728219820Sjeff } else 729219820Sjeff mthca_SYS_DIS(mdev, &status); 730219820Sjeff} 731219820Sjeff 732219820Sjeffstatic int mthca_init_hca(struct mthca_dev *mdev) 733219820Sjeff{ 734219820Sjeff u8 status; 735219820Sjeff int err; 736219820Sjeff struct mthca_adapter adapter; 737219820Sjeff 738219820Sjeff if (mthca_is_memfree(mdev)) 739219820Sjeff err = mthca_init_arbel(mdev); 740219820Sjeff else 741219820Sjeff err = mthca_init_tavor(mdev); 742219820Sjeff 743219820Sjeff if (err) 744219820Sjeff return err; 745219820Sjeff 746219820Sjeff err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 747219820Sjeff if (err) { 748219820Sjeff mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 749219820Sjeff goto err_close; 750219820Sjeff } 751219820Sjeff if (status) { 752219820Sjeff mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 753219820Sjeff "aborting.\n", status); 754219820Sjeff err = -EINVAL; 755219820Sjeff goto err_close; 756219820Sjeff } 757219820Sjeff 758219820Sjeff mdev->eq_table.inta_pin = adapter.inta_pin; 759219820Sjeff if (!mthca_is_memfree(mdev)) 760219820Sjeff mdev->rev_id = adapter.revision_id; 761219820Sjeff memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 762219820Sjeff 763219820Sjeff return 0; 764219820Sjeff 765219820Sjefferr_close: 766219820Sjeff mthca_close_hca(mdev); 767219820Sjeff return err; 768219820Sjeff} 769219820Sjeff 770219820Sjeffstatic int mthca_setup_hca(struct mthca_dev *dev) 771219820Sjeff{ 772219820Sjeff int err; 773219820Sjeff u8 status; 774219820Sjeff 775219820Sjeff MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 776219820Sjeff 777219820Sjeff err = mthca_init_uar_table(dev); 778219820Sjeff if (err) { 779219820Sjeff mthca_err(dev, "Failed to initialize " 780219820Sjeff "user access region table, aborting.\n"); 781219820Sjeff return err; 782219820Sjeff } 783219820Sjeff 784219820Sjeff err = mthca_uar_alloc(dev, &dev->driver_uar); 785219820Sjeff if (err) { 786219820Sjeff mthca_err(dev, "Failed to allocate driver access region, " 787219820Sjeff "aborting.\n"); 788219820Sjeff goto err_uar_table_free; 789219820Sjeff } 790219820Sjeff 791219820Sjeff dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 792219820Sjeff if (!dev->kar) { 793219820Sjeff mthca_err(dev, "Couldn't map kernel access region, " 794219820Sjeff "aborting.\n"); 795219820Sjeff err = -ENOMEM; 796219820Sjeff goto err_uar_free; 797219820Sjeff } 798219820Sjeff 799219820Sjeff err = mthca_init_pd_table(dev); 800219820Sjeff if (err) { 801219820Sjeff mthca_err(dev, "Failed to initialize " 802219820Sjeff "protection domain table, aborting.\n"); 803219820Sjeff goto err_kar_unmap; 804219820Sjeff } 805219820Sjeff 806219820Sjeff err = mthca_init_mr_table(dev); 807219820Sjeff if (err) { 808219820Sjeff mthca_err(dev, "Failed to initialize " 809219820Sjeff "memory region table, aborting.\n"); 810219820Sjeff goto err_pd_table_free; 811219820Sjeff } 812219820Sjeff 813219820Sjeff err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 814219820Sjeff if (err) { 815219820Sjeff mthca_err(dev, "Failed to create driver PD, " 816219820Sjeff "aborting.\n"); 817219820Sjeff goto err_mr_table_free; 818219820Sjeff } 819219820Sjeff 820219820Sjeff err = mthca_init_eq_table(dev); 821219820Sjeff if (err) { 822219820Sjeff mthca_err(dev, "Failed to initialize " 823219820Sjeff "event queue table, aborting.\n"); 824219820Sjeff goto err_pd_free; 825219820Sjeff } 826219820Sjeff 827219820Sjeff err = mthca_cmd_use_events(dev); 828219820Sjeff if (err) { 829219820Sjeff mthca_err(dev, "Failed to switch to event-driven " 830219820Sjeff "firmware commands, aborting.\n"); 831219820Sjeff goto err_eq_table_free; 832219820Sjeff } 833219820Sjeff 834219820Sjeff err = mthca_NOP(dev, &status); 835219820Sjeff if (err || status) { 836219820Sjeff if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { 837219820Sjeff mthca_warn(dev, "NOP command failed to generate interrupt " 838219820Sjeff "(IRQ %d).\n", 839219820Sjeff dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector); 840219820Sjeff mthca_warn(dev, "Trying again with MSI-X disabled.\n"); 841219820Sjeff } else { 842219820Sjeff mthca_err(dev, "NOP command failed to generate interrupt " 843219820Sjeff "(IRQ %d), aborting.\n", 844219820Sjeff dev->pdev->irq); 845219820Sjeff mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 846219820Sjeff } 847219820Sjeff 848219820Sjeff goto err_cmd_poll; 849219820Sjeff } 850219820Sjeff 851219820Sjeff mthca_dbg(dev, "NOP command IRQ test passed\n"); 852219820Sjeff 853219820Sjeff err = mthca_init_cq_table(dev); 854219820Sjeff if (err) { 855219820Sjeff mthca_err(dev, "Failed to initialize " 856219820Sjeff "completion queue table, aborting.\n"); 857219820Sjeff goto err_cmd_poll; 858219820Sjeff } 859219820Sjeff 860219820Sjeff err = mthca_init_srq_table(dev); 861219820Sjeff if (err) { 862219820Sjeff mthca_err(dev, "Failed to initialize " 863219820Sjeff "shared receive queue table, aborting.\n"); 864219820Sjeff goto err_cq_table_free; 865219820Sjeff } 866219820Sjeff 867219820Sjeff err = mthca_init_qp_table(dev); 868219820Sjeff if (err) { 869219820Sjeff mthca_err(dev, "Failed to initialize " 870219820Sjeff "queue pair table, aborting.\n"); 871219820Sjeff goto err_srq_table_free; 872219820Sjeff } 873219820Sjeff 874219820Sjeff err = mthca_init_av_table(dev); 875219820Sjeff if (err) { 876219820Sjeff mthca_err(dev, "Failed to initialize " 877219820Sjeff "address vector table, aborting.\n"); 878219820Sjeff goto err_qp_table_free; 879219820Sjeff } 880219820Sjeff 881219820Sjeff err = mthca_init_mcg_table(dev); 882219820Sjeff if (err) { 883219820Sjeff mthca_err(dev, "Failed to initialize " 884219820Sjeff "multicast group table, aborting.\n"); 885219820Sjeff goto err_av_table_free; 886219820Sjeff } 887219820Sjeff 888219820Sjeff return 0; 889219820Sjeff 890219820Sjefferr_av_table_free: 891219820Sjeff mthca_cleanup_av_table(dev); 892219820Sjeff 893219820Sjefferr_qp_table_free: 894219820Sjeff mthca_cleanup_qp_table(dev); 895219820Sjeff 896219820Sjefferr_srq_table_free: 897219820Sjeff mthca_cleanup_srq_table(dev); 898219820Sjeff 899219820Sjefferr_cq_table_free: 900219820Sjeff mthca_cleanup_cq_table(dev); 901219820Sjeff 902219820Sjefferr_cmd_poll: 903219820Sjeff mthca_cmd_use_polling(dev); 904219820Sjeff 905219820Sjefferr_eq_table_free: 906219820Sjeff mthca_cleanup_eq_table(dev); 907219820Sjeff 908219820Sjefferr_pd_free: 909219820Sjeff mthca_pd_free(dev, &dev->driver_pd); 910219820Sjeff 911219820Sjefferr_mr_table_free: 912219820Sjeff mthca_cleanup_mr_table(dev); 913219820Sjeff 914219820Sjefferr_pd_table_free: 915219820Sjeff mthca_cleanup_pd_table(dev); 916219820Sjeff 917219820Sjefferr_kar_unmap: 918219820Sjeff iounmap(dev->kar); 919219820Sjeff 920219820Sjefferr_uar_free: 921219820Sjeff mthca_uar_free(dev, &dev->driver_uar); 922219820Sjeff 923219820Sjefferr_uar_table_free: 924219820Sjeff mthca_cleanup_uar_table(dev); 925219820Sjeff return err; 926219820Sjeff} 927219820Sjeff 928219820Sjeffstatic int mthca_enable_msi_x(struct mthca_dev *mdev) 929219820Sjeff{ 930219820Sjeff struct msix_entry entries[3]; 931219820Sjeff int err; 932219820Sjeff 933219820Sjeff entries[0].entry = 0; 934219820Sjeff entries[1].entry = 1; 935219820Sjeff entries[2].entry = 2; 936219820Sjeff 937219820Sjeff err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 938219820Sjeff if (err) { 939219820Sjeff if (err > 0) 940219820Sjeff mthca_info(mdev, "Only %d MSI-X vectors available, " 941219820Sjeff "not using MSI-X\n", err); 942219820Sjeff return err; 943219820Sjeff } 944219820Sjeff 945219820Sjeff mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 946219820Sjeff mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 947219820Sjeff mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 948219820Sjeff 949219820Sjeff return 0; 950219820Sjeff} 951219820Sjeff 952219820Sjeff/* Types of supported HCA */ 953219820Sjeffenum { 954219820Sjeff TAVOR, /* MT23108 */ 955219820Sjeff ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 956219820Sjeff ARBEL_NATIVE, /* MT25208 with extended features */ 957219820Sjeff SINAI /* MT25204 */ 958219820Sjeff}; 959219820Sjeff 960219820Sjeff#define MTHCA_FW_VER(major, minor, subminor) \ 961219820Sjeff (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 962219820Sjeff 963219820Sjeffstatic struct { 964219820Sjeff u64 latest_fw; 965219820Sjeff u32 flags; 966219820Sjeff} mthca_hca_table[] = { 967219820Sjeff [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0), 968219820Sjeff .flags = 0 }, 969219820Sjeff [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200), 970219820Sjeff .flags = MTHCA_FLAG_PCIE }, 971219820Sjeff [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0), 972219820Sjeff .flags = MTHCA_FLAG_MEMFREE | 973219820Sjeff MTHCA_FLAG_PCIE }, 974219820Sjeff [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0), 975219820Sjeff .flags = MTHCA_FLAG_MEMFREE | 976219820Sjeff MTHCA_FLAG_PCIE | 977219820Sjeff MTHCA_FLAG_SINAI_OPT } 978219820Sjeff}; 979219820Sjeff 980219820Sjeffstatic int __mthca_init_one(struct pci_dev *pdev, int hca_type) 981219820Sjeff{ 982219820Sjeff int ddr_hidden = 0; 983219820Sjeff int err; 984219820Sjeff struct mthca_dev *mdev; 985219820Sjeff 986219820Sjeff printk(KERN_INFO PFX "Initializing %s\n", 987219820Sjeff pci_name(pdev)); 988219820Sjeff 989219820Sjeff err = pci_enable_device(pdev); 990219820Sjeff if (err) { 991219820Sjeff dev_err(&pdev->dev, "Cannot enable PCI device, " 992219820Sjeff "aborting.\n"); 993219820Sjeff return err; 994219820Sjeff } 995219820Sjeff 996219820Sjeff /* 997219820Sjeff * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 998219820Sjeff * be present) 999219820Sjeff */ 1000219820Sjeff if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 1001219820Sjeff pci_resource_len(pdev, 0) != 1 << 20) { 1002219820Sjeff dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 1003219820Sjeff err = -ENODEV; 1004219820Sjeff goto err_disable_pdev; 1005219820Sjeff } 1006219820Sjeff if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 1007219820Sjeff dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 1008219820Sjeff err = -ENODEV; 1009219820Sjeff goto err_disable_pdev; 1010219820Sjeff } 1011219820Sjeff if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 1012219820Sjeff ddr_hidden = 1; 1013219820Sjeff 1014219820Sjeff err = pci_request_regions(pdev, DRV_NAME); 1015219820Sjeff if (err) { 1016219820Sjeff dev_err(&pdev->dev, "Cannot obtain PCI resources, " 1017219820Sjeff "aborting.\n"); 1018219820Sjeff goto err_disable_pdev; 1019219820Sjeff } 1020219820Sjeff 1021219820Sjeff pci_set_master(pdev); 1022219820Sjeff 1023219820Sjeff err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 1024219820Sjeff if (err) { 1025219820Sjeff dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 1026219820Sjeff err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 1027219820Sjeff if (err) { 1028219820Sjeff dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 1029219820Sjeff goto err_free_res; 1030219820Sjeff } 1031219820Sjeff } 1032219820Sjeff err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 1033219820Sjeff if (err) { 1034219820Sjeff dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 1035219820Sjeff "consistent PCI DMA mask.\n"); 1036219820Sjeff err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 1037219820Sjeff if (err) { 1038219820Sjeff dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 1039219820Sjeff "aborting.\n"); 1040219820Sjeff goto err_free_res; 1041219820Sjeff } 1042219820Sjeff } 1043219820Sjeff 1044219820Sjeff mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 1045219820Sjeff if (!mdev) { 1046219820Sjeff dev_err(&pdev->dev, "Device struct alloc failed, " 1047219820Sjeff "aborting.\n"); 1048219820Sjeff err = -ENOMEM; 1049219820Sjeff goto err_free_res; 1050219820Sjeff } 1051219820Sjeff 1052219820Sjeff mdev->pdev = pdev; 1053219820Sjeff 1054219820Sjeff mdev->mthca_flags = mthca_hca_table[hca_type].flags; 1055219820Sjeff if (ddr_hidden) 1056219820Sjeff mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 1057219820Sjeff 1058219820Sjeff /* 1059219820Sjeff * Now reset the HCA before we touch the PCI capabilities or 1060219820Sjeff * attempt a firmware command, since a boot ROM may have left 1061219820Sjeff * the HCA in an undefined state. 1062219820Sjeff */ 1063219820Sjeff err = mthca_reset(mdev); 1064219820Sjeff if (err) { 1065219820Sjeff mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 1066219820Sjeff goto err_free_dev; 1067219820Sjeff } 1068219820Sjeff 1069219820Sjeff if (mthca_cmd_init(mdev)) { 1070219820Sjeff mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1071219820Sjeff goto err_free_dev; 1072219820Sjeff } 1073219820Sjeff 1074219820Sjeff err = mthca_tune_pci(mdev); 1075219820Sjeff if (err) 1076219820Sjeff goto err_cmd; 1077219820Sjeff 1078219820Sjeff err = mthca_init_hca(mdev); 1079219820Sjeff if (err) 1080219820Sjeff goto err_cmd; 1081219820Sjeff 1082219820Sjeff if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { 1083219820Sjeff mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", 1084219820Sjeff (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1085219820Sjeff (int) (mdev->fw_ver & 0xffff), 1086219820Sjeff (int) (mthca_hca_table[hca_type].latest_fw >> 32), 1087219820Sjeff (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff, 1088219820Sjeff (int) (mthca_hca_table[hca_type].latest_fw & 0xffff)); 1089219820Sjeff mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1090219820Sjeff } 1091219820Sjeff 1092219820Sjeff if (msi_x && !mthca_enable_msi_x(mdev)) 1093219820Sjeff mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1094219820Sjeff 1095219820Sjeff err = mthca_setup_hca(mdev); 1096219820Sjeff if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) { 1097219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1098219820Sjeff pci_disable_msix(pdev); 1099219820Sjeff mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X; 1100219820Sjeff 1101219820Sjeff err = mthca_setup_hca(mdev); 1102219820Sjeff } 1103219820Sjeff 1104219820Sjeff if (err) 1105219820Sjeff goto err_close; 1106219820Sjeff 1107219820Sjeff err = mthca_register_device(mdev); 1108219820Sjeff if (err) 1109219820Sjeff goto err_cleanup; 1110219820Sjeff 1111219820Sjeff err = mthca_create_agents(mdev); 1112219820Sjeff if (err) 1113219820Sjeff goto err_unregister; 1114219820Sjeff 1115219820Sjeff pci_set_drvdata(pdev, mdev); 1116219820Sjeff mdev->hca_type = hca_type; 1117219820Sjeff 1118219820Sjeff mdev->active = 1; 1119219820Sjeff 1120219820Sjeff return 0; 1121219820Sjeff 1122219820Sjefferr_unregister: 1123219820Sjeff mthca_unregister_device(mdev); 1124219820Sjeff 1125219820Sjefferr_cleanup: 1126219820Sjeff mthca_cleanup_mcg_table(mdev); 1127219820Sjeff mthca_cleanup_av_table(mdev); 1128219820Sjeff mthca_cleanup_qp_table(mdev); 1129219820Sjeff mthca_cleanup_srq_table(mdev); 1130219820Sjeff mthca_cleanup_cq_table(mdev); 1131219820Sjeff mthca_cmd_use_polling(mdev); 1132219820Sjeff mthca_cleanup_eq_table(mdev); 1133219820Sjeff 1134219820Sjeff mthca_pd_free(mdev, &mdev->driver_pd); 1135219820Sjeff 1136219820Sjeff mthca_cleanup_mr_table(mdev); 1137219820Sjeff mthca_cleanup_pd_table(mdev); 1138219820Sjeff mthca_cleanup_uar_table(mdev); 1139219820Sjeff 1140219820Sjefferr_close: 1141219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1142219820Sjeff pci_disable_msix(pdev); 1143219820Sjeff 1144219820Sjeff mthca_close_hca(mdev); 1145219820Sjeff 1146219820Sjefferr_cmd: 1147219820Sjeff mthca_cmd_cleanup(mdev); 1148219820Sjeff 1149219820Sjefferr_free_dev: 1150219820Sjeff ib_dealloc_device(&mdev->ib_dev); 1151219820Sjeff 1152219820Sjefferr_free_res: 1153219820Sjeff pci_release_regions(pdev); 1154219820Sjeff 1155219820Sjefferr_disable_pdev: 1156219820Sjeff pci_disable_device(pdev); 1157219820Sjeff pci_set_drvdata(pdev, NULL); 1158219820Sjeff return err; 1159219820Sjeff} 1160219820Sjeff 1161219820Sjeffstatic void __mthca_remove_one(struct pci_dev *pdev) 1162219820Sjeff{ 1163219820Sjeff struct mthca_dev *mdev = pci_get_drvdata(pdev); 1164219820Sjeff u8 status; 1165219820Sjeff int p; 1166219820Sjeff 1167219820Sjeff if (mdev) { 1168219820Sjeff mthca_free_agents(mdev); 1169219820Sjeff mthca_unregister_device(mdev); 1170219820Sjeff 1171219820Sjeff for (p = 1; p <= mdev->limits.num_ports; ++p) 1172219820Sjeff mthca_CLOSE_IB(mdev, p, &status); 1173219820Sjeff 1174219820Sjeff mthca_cleanup_mcg_table(mdev); 1175219820Sjeff mthca_cleanup_av_table(mdev); 1176219820Sjeff mthca_cleanup_qp_table(mdev); 1177219820Sjeff mthca_cleanup_srq_table(mdev); 1178219820Sjeff mthca_cleanup_cq_table(mdev); 1179219820Sjeff mthca_cmd_use_polling(mdev); 1180219820Sjeff mthca_cleanup_eq_table(mdev); 1181219820Sjeff 1182219820Sjeff mthca_pd_free(mdev, &mdev->driver_pd); 1183219820Sjeff 1184219820Sjeff mthca_cleanup_mr_table(mdev); 1185219820Sjeff mthca_cleanup_pd_table(mdev); 1186219820Sjeff 1187219820Sjeff iounmap(mdev->kar); 1188219820Sjeff mthca_uar_free(mdev, &mdev->driver_uar); 1189219820Sjeff mthca_cleanup_uar_table(mdev); 1190219820Sjeff mthca_close_hca(mdev); 1191219820Sjeff mthca_cmd_cleanup(mdev); 1192219820Sjeff 1193219820Sjeff if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1194219820Sjeff pci_disable_msix(pdev); 1195219820Sjeff 1196219820Sjeff ib_dealloc_device(&mdev->ib_dev); 1197219820Sjeff pci_release_regions(pdev); 1198219820Sjeff pci_disable_device(pdev); 1199219820Sjeff pci_set_drvdata(pdev, NULL); 1200219820Sjeff } 1201219820Sjeff} 1202219820Sjeff 1203219820Sjeffint __mthca_restart_one(struct pci_dev *pdev) 1204219820Sjeff{ 1205219820Sjeff struct mthca_dev *mdev; 1206219820Sjeff int hca_type; 1207219820Sjeff 1208219820Sjeff mdev = pci_get_drvdata(pdev); 1209219820Sjeff if (!mdev) 1210219820Sjeff return -ENODEV; 1211219820Sjeff hca_type = mdev->hca_type; 1212219820Sjeff __mthca_remove_one(pdev); 1213219820Sjeff return __mthca_init_one(pdev, hca_type); 1214219820Sjeff} 1215219820Sjeff 1216219820Sjeffstatic int __devinit mthca_init_one(struct pci_dev *pdev, 1217219820Sjeff const struct pci_device_id *id) 1218219820Sjeff{ 1219219820Sjeff static int mthca_version_printed = 0; 1220219820Sjeff int ret; 1221219820Sjeff 1222219820Sjeff mutex_lock(&mthca_device_mutex); 1223219820Sjeff 1224219820Sjeff if (!mthca_version_printed) { 1225219820Sjeff printk(KERN_INFO "%s", mthca_version); 1226219820Sjeff ++mthca_version_printed; 1227219820Sjeff } 1228219820Sjeff 1229219820Sjeff if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 1230219846Skib printk(KERN_ERR PFX "%s has invalid driver data %jx\n", 1231219846Skib pci_name(pdev), (uintmax_t)id->driver_data); 1232219820Sjeff mutex_unlock(&mthca_device_mutex); 1233219820Sjeff return -ENODEV; 1234219820Sjeff } 1235219820Sjeff 1236219820Sjeff ret = __mthca_init_one(pdev, id->driver_data); 1237219820Sjeff 1238219820Sjeff mutex_unlock(&mthca_device_mutex); 1239219820Sjeff 1240219820Sjeff return ret; 1241219820Sjeff} 1242219820Sjeff 1243219820Sjeffstatic void __devexit mthca_remove_one(struct pci_dev *pdev) 1244219820Sjeff{ 1245219820Sjeff mutex_lock(&mthca_device_mutex); 1246219820Sjeff __mthca_remove_one(pdev); 1247219820Sjeff mutex_unlock(&mthca_device_mutex); 1248219820Sjeff} 1249219820Sjeff 1250219820Sjeffstatic struct pci_device_id mthca_pci_table[] = { 1251219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1252219820Sjeff .driver_data = TAVOR }, 1253219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1254219820Sjeff .driver_data = TAVOR }, 1255219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1256219820Sjeff .driver_data = ARBEL_COMPAT }, 1257219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1258219820Sjeff .driver_data = ARBEL_COMPAT }, 1259219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1260219820Sjeff .driver_data = ARBEL_NATIVE }, 1261219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1262219820Sjeff .driver_data = ARBEL_NATIVE }, 1263219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1264219820Sjeff .driver_data = SINAI }, 1265219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1266219820Sjeff .driver_data = SINAI }, 1267219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1268219820Sjeff .driver_data = SINAI }, 1269219820Sjeff { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1270219820Sjeff .driver_data = SINAI }, 1271219820Sjeff { 0, } 1272219820Sjeff}; 1273219820Sjeff 1274219820SjeffMODULE_DEVICE_TABLE(pci, mthca_pci_table); 1275219820Sjeff 1276219820Sjeffstatic struct pci_driver mthca_driver = { 1277219820Sjeff .name = DRV_NAME, 1278219820Sjeff .id_table = mthca_pci_table, 1279219820Sjeff .probe = mthca_init_one, 1280219820Sjeff .remove = __devexit_p(mthca_remove_one) 1281219820Sjeff}; 1282219820Sjeff 1283219820Sjeffstatic void __init __mthca_check_profile_val(const char *name, int *pval, 1284219820Sjeff int pval_default) 1285219820Sjeff{ 1286219820Sjeff /* value must be positive and power of 2 */ 1287219820Sjeff int old_pval = *pval; 1288219820Sjeff 1289219820Sjeff if (old_pval <= 0) 1290219820Sjeff *pval = pval_default; 1291219820Sjeff else 1292219820Sjeff *pval = roundup_pow_of_two(old_pval); 1293219820Sjeff 1294219820Sjeff if (old_pval != *pval) { 1295219820Sjeff printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n", 1296219820Sjeff old_pval, name); 1297219820Sjeff printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval); 1298219820Sjeff } 1299219820Sjeff} 1300219820Sjeff 1301219820Sjeff#define mthca_check_profile_val(name, default) \ 1302219820Sjeff __mthca_check_profile_val(#name, &hca_profile.name, default) 1303219820Sjeff 1304219820Sjeffstatic void __init mthca_validate_profile(void) 1305219820Sjeff{ 1306219820Sjeff mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP); 1307219820Sjeff mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP); 1308219820Sjeff mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ); 1309219820Sjeff mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG); 1310219820Sjeff mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT); 1311219820Sjeff mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT); 1312219820Sjeff mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV); 1313219820Sjeff mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS); 1314219820Sjeff 1315219820Sjeff if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) { 1316219820Sjeff printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n", 1317219820Sjeff hca_profile.fmr_reserved_mtts); 1318219820Sjeff printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n", 1319219820Sjeff hca_profile.num_mtt); 1320219820Sjeff hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2; 1321219820Sjeff printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n", 1322219820Sjeff hca_profile.fmr_reserved_mtts); 1323219820Sjeff } 1324219820Sjeff if (log_mtts_per_seg == 0) 1325219820Sjeff log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 1326219820Sjeff if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) { 1327255932Salfred printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n", 1328219820Sjeff log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8)); 1329219820Sjeff log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 1330219820Sjeff } 1331219820Sjeff} 1332219820Sjeff 1333219820Sjeffstatic int __init mthca_init(void) 1334219820Sjeff{ 1335219820Sjeff int ret; 1336219820Sjeff 1337219820Sjeff mthca_validate_profile(); 1338219820Sjeff 1339219820Sjeff ret = mthca_catas_init(); 1340219820Sjeff if (ret) 1341219820Sjeff return ret; 1342219820Sjeff 1343219820Sjeff ret = pci_register_driver(&mthca_driver); 1344219820Sjeff if (ret < 0) { 1345219820Sjeff mthca_catas_cleanup(); 1346219820Sjeff return ret; 1347219820Sjeff } 1348219820Sjeff 1349219820Sjeff return 0; 1350219820Sjeff} 1351219820Sjeff 1352219820Sjeffstatic void __exit mthca_cleanup(void) 1353219820Sjeff{ 1354219820Sjeff pci_unregister_driver(&mthca_driver); 1355219820Sjeff mthca_catas_cleanup(); 1356219820Sjeff} 1357219820Sjeff 1358219820Sjeffmodule_init_order(mthca_init, SI_ORDER_MIDDLE); 1359219820Sjeffmodule_exit(mthca_cleanup); 1360