| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $ |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/version.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/errno.h> |
| #include <linux/pci.h> |
| #include <linux/interrupt.h> |
| |
| #include "mthca_dev.h" |
| #include "mthca_config_reg.h" |
| #include "mthca_cmd.h" |
| #include "mthca_profile.h" |
| #include "mthca_memfree.h" |
| |
| MODULE_AUTHOR("Roland Dreier"); |
| MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_VERSION(DRV_VERSION); |
| |
| #ifdef CONFIG_PCI_MSI |
| |
| static int msi_x = 0; |
| module_param(msi_x, int, 0444); |
| MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); |
| |
| static int msi = 0; |
| module_param(msi, int, 0444); |
| MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); |
| |
| #else /* CONFIG_PCI_MSI */ |
| |
| #define msi_x (0) |
| #define msi (0) |
| |
| #endif /* CONFIG_PCI_MSI */ |
| |
| static const char mthca_version[] __devinitdata = |
| "ib_mthca: Mellanox InfiniBand HCA driver v" |
| DRV_VERSION " (" DRV_RELDATE ")\n"; |
| |
| static struct mthca_profile default_profile = { |
| .num_qp = 1 << 16, |
| .rdb_per_qp = 4, |
| .num_cq = 1 << 16, |
| .num_mcg = 1 << 13, |
| .num_mpt = 1 << 17, |
| .num_mtt = 1 << 20, |
| .num_udav = 1 << 15, /* Tavor only */ |
| .uarc_size = 1 << 18, /* Arbel only */ |
| }; |
| |
| static int __devinit mthca_tune_pci(struct mthca_dev *mdev) |
| { |
| int cap; |
| u16 val; |
| |
| /* First try to max out Read Byte Count */ |
| cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); |
| if (cap) { |
| if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { |
| mthca_err(mdev, "Couldn't read PCI-X command register, " |
| "aborting.\n"); |
| return -ENODEV; |
| } |
| val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); |
| if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { |
| mthca_err(mdev, "Couldn't write PCI-X command register, " |
| "aborting.\n"); |
| return -ENODEV; |
| } |
| } else if (mdev->hca_type == TAVOR) |
| mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); |
| |
| cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); |
| if (cap) { |
| if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { |
| mthca_err(mdev, "Couldn't read PCI Express device control " |
| "register, aborting.\n"); |
| return -ENODEV; |
| } |
| val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); |
| if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { |
| mthca_err(mdev, "Couldn't write PCI Express device control " |
| "register, aborting.\n"); |
| return -ENODEV; |
| } |
| } else if (mdev->hca_type == ARBEL_NATIVE || |
| mdev->hca_type == ARBEL_COMPAT) |
| mthca_info(mdev, "No PCI Express capability, " |
| "not setting Max Read Request Size.\n"); |
| |
| return 0; |
| } |
| |
| static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) |
| { |
| int err; |
| u8 status; |
| |
| err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); |
| return err; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " |
| "aborting.\n", status); |
| return -EINVAL; |
| } |
| if (dev_lim->min_page_sz > PAGE_SIZE) { |
| mthca_err(mdev, "HCA minimum page size of %d bigger than " |
| "kernel PAGE_SIZE of %ld, aborting.\n", |
| dev_lim->min_page_sz, PAGE_SIZE); |
| return -ENODEV; |
| } |
| if (dev_lim->num_ports > MTHCA_MAX_PORTS) { |
| mthca_err(mdev, "HCA has %d ports, but we only support %d, " |
| "aborting.\n", |
| dev_lim->num_ports, MTHCA_MAX_PORTS); |
| return -ENODEV; |
| } |
| |
| mdev->limits.num_ports = dev_lim->num_ports; |
| mdev->limits.vl_cap = dev_lim->max_vl; |
| mdev->limits.mtu_cap = dev_lim->max_mtu; |
| mdev->limits.gid_table_len = dev_lim->max_gids; |
| mdev->limits.pkey_table_len = dev_lim->max_pkeys; |
| mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; |
| mdev->limits.max_sg = dev_lim->max_sg; |
| mdev->limits.reserved_qps = dev_lim->reserved_qps; |
| mdev->limits.reserved_srqs = dev_lim->reserved_srqs; |
| mdev->limits.reserved_eecs = dev_lim->reserved_eecs; |
| mdev->limits.reserved_cqs = dev_lim->reserved_cqs; |
| mdev->limits.reserved_eqs = dev_lim->reserved_eqs; |
| mdev->limits.reserved_mtts = dev_lim->reserved_mtts; |
| mdev->limits.reserved_mrws = dev_lim->reserved_mrws; |
| mdev->limits.reserved_uars = dev_lim->reserved_uars; |
| mdev->limits.reserved_pds = dev_lim->reserved_pds; |
| |
| /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. |
| May be doable since hardware supports it for SRQ. |
| |
| IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. |
| |
| IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not |
| supported by driver. */ |
| mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
| IB_DEVICE_PORT_ACTIVE_EVENT | |
| IB_DEVICE_SYS_IMAGE_GUID | |
| IB_DEVICE_RC_RNR_NAK_GEN; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) |
| mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) |
| mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) |
| mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) |
| mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) |
| mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; |
| |
| if (dev_lim->flags & DEV_LIM_FLAG_SRQ) |
| mdev->mthca_flags |= MTHCA_FLAG_SRQ; |
| |
| return 0; |
| } |
| |
| static int __devinit mthca_init_tavor(struct mthca_dev *mdev) |
| { |
| u8 status; |
| int err; |
| struct mthca_dev_lim dev_lim; |
| struct mthca_profile profile; |
| struct mthca_init_hca_param init_hca; |
| struct mthca_adapter adapter; |
| |
| err = mthca_SYS_EN(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "SYS_EN command failed, aborting.\n"); |
| return err; |
| } |
| if (status) { |
| mthca_err(mdev, "SYS_EN returned status 0x%02x, " |
| "aborting.\n", status); |
| return -EINVAL; |
| } |
| |
| err = mthca_QUERY_FW(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); |
| goto err_disable; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_FW returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_disable; |
| } |
| err = mthca_QUERY_DDR(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); |
| goto err_disable; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_disable; |
| } |
| |
| err = mthca_dev_lim(mdev, &dev_lim); |
| |
| profile = default_profile; |
| profile.num_uar = dev_lim.uar_size / PAGE_SIZE; |
| profile.uarc_size = 0; |
| |
| err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); |
| if (err < 0) |
| goto err_disable; |
| |
| err = mthca_INIT_HCA(mdev, &init_hca, &status); |
| if (err) { |
| mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); |
| goto err_disable; |
| } |
| if (status) { |
| mthca_err(mdev, "INIT_HCA returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_disable; |
| } |
| |
| err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); |
| goto err_close; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_close; |
| } |
| |
| mdev->eq_table.inta_pin = adapter.inta_pin; |
| mdev->rev_id = adapter.revision_id; |
| |
| return 0; |
| |
| err_close: |
| mthca_CLOSE_HCA(mdev, 0, &status); |
| |
| err_disable: |
| mthca_SYS_DIS(mdev, &status); |
| |
| return err; |
| } |
| |
| static int __devinit mthca_load_fw(struct mthca_dev *mdev) |
| { |
| u8 status; |
| int err; |
| |
| /* FIXME: use HCA-attached memory for FW if present */ |
| |
| mdev->fw.arbel.fw_icm = |
| mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, |
| GFP_HIGHUSER | __GFP_NOWARN); |
| if (!mdev->fw.arbel.fw_icm) { |
| mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); |
| return -ENOMEM; |
| } |
| |
| err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); |
| if (err) { |
| mthca_err(mdev, "MAP_FA command failed, aborting.\n"); |
| goto err_free; |
| } |
| if (status) { |
| mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); |
| err = -EINVAL; |
| goto err_free; |
| } |
| err = mthca_RUN_FW(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "RUN_FW command failed, aborting.\n"); |
| goto err_unmap_fa; |
| } |
| if (status) { |
| mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); |
| err = -EINVAL; |
| goto err_unmap_fa; |
| } |
| |
| return 0; |
| |
| err_unmap_fa: |
| mthca_UNMAP_FA(mdev, &status); |
| |
| err_free: |
| mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| return err; |
| } |
| |
| static int __devinit mthca_init_icm(struct mthca_dev *mdev, |
| struct mthca_dev_lim *dev_lim, |
| struct mthca_init_hca_param *init_hca, |
| u64 icm_size) |
| { |
| u64 aux_pages; |
| u8 status; |
| int err; |
| |
| err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); |
| if (err) { |
| mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); |
| return err; |
| } |
| if (status) { |
| mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " |
| "aborting.\n", status); |
| return -EINVAL; |
| } |
| |
| mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", |
| (unsigned long long) icm_size >> 10, |
| (unsigned long long) aux_pages << 2); |
| |
| mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, |
| GFP_HIGHUSER | __GFP_NOWARN); |
| if (!mdev->fw.arbel.aux_icm) { |
| mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); |
| return -ENOMEM; |
| } |
| |
| err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); |
| if (err) { |
| mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); |
| goto err_free_aux; |
| } |
| if (status) { |
| mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); |
| err = -EINVAL; |
| goto err_free_aux; |
| } |
| |
| err = mthca_map_eq_icm(mdev, init_hca->eqc_base); |
| if (err) { |
| mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); |
| goto err_unmap_aux; |
| } |
| |
| mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, |
| init_hca->mtt_seg_sz, |
| mdev->limits.num_mtt_segs, |
| mdev->limits.reserved_mtts, 1); |
| if (!mdev->mr_table.mtt_table) { |
| mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_eq; |
| } |
| |
| mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, |
| dev_lim->mpt_entry_sz, |
| mdev->limits.num_mpts, |
| mdev->limits.reserved_mrws, 1); |
| if (!mdev->mr_table.mpt_table) { |
| mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_mtt; |
| } |
| |
| mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, |
| dev_lim->qpc_entry_sz, |
| mdev->limits.num_qps, |
| mdev->limits.reserved_qps, 0); |
| if (!mdev->qp_table.qp_table) { |
| mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_mpt; |
| } |
| |
| mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, |
| dev_lim->eqpc_entry_sz, |
| mdev->limits.num_qps, |
| mdev->limits.reserved_qps, 0); |
| if (!mdev->qp_table.eqp_table) { |
| mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_qp; |
| } |
| |
| mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, |
| dev_lim->cqc_entry_sz, |
| mdev->limits.num_cqs, |
| mdev->limits.reserved_cqs, 0); |
| if (!mdev->cq_table.table) { |
| mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_eqp; |
| } |
| |
| /* |
| * It's not strictly required, but for simplicity just map the |
| * whole multicast group table now. The table isn't very big |
| * and it's a lot easier than trying to track ref counts. |
| */ |
| mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, |
| MTHCA_MGM_ENTRY_SIZE, |
| mdev->limits.num_mgms + |
| mdev->limits.num_amgms, |
| mdev->limits.num_mgms + |
| mdev->limits.num_amgms, |
| 0); |
| if (!mdev->mcg_table.table) { |
| mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); |
| err = -ENOMEM; |
| goto err_unmap_cq; |
| } |
| |
| return 0; |
| |
| err_unmap_cq: |
| mthca_free_icm_table(mdev, mdev->cq_table.table); |
| |
| err_unmap_eqp: |
| mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); |
| |
| err_unmap_qp: |
| mthca_free_icm_table(mdev, mdev->qp_table.qp_table); |
| |
| err_unmap_mpt: |
| mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); |
| |
| err_unmap_mtt: |
| mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); |
| |
| err_unmap_eq: |
| mthca_unmap_eq_icm(mdev); |
| |
| err_unmap_aux: |
| mthca_UNMAP_ICM_AUX(mdev, &status); |
| |
| err_free_aux: |
| mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); |
| |
| return err; |
| } |
| |
| static int __devinit mthca_init_arbel(struct mthca_dev *mdev) |
| { |
| struct mthca_dev_lim dev_lim; |
| struct mthca_profile profile; |
| struct mthca_init_hca_param init_hca; |
| struct mthca_adapter adapter; |
| u64 icm_size; |
| u8 status; |
| int err; |
| |
| err = mthca_QUERY_FW(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); |
| return err; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_FW returned status 0x%02x, " |
| "aborting.\n", status); |
| return -EINVAL; |
| } |
| |
| err = mthca_ENABLE_LAM(mdev, &status); |
| if (err) { |
| mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); |
| return err; |
| } |
| if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { |
| mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); |
| mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; |
| } else if (status) { |
| mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " |
| "aborting.\n", status); |
| return -EINVAL; |
| } |
| |
| err = mthca_load_fw(mdev); |
| if (err) { |
| mthca_err(mdev, "Failed to start FW, aborting.\n"); |
| goto err_disable; |
| } |
| |
| err = mthca_dev_lim(mdev, &dev_lim); |
| if (err) { |
| mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); |
| goto err_stop_fw; |
| } |
| |
| profile = default_profile; |
| profile.num_uar = dev_lim.uar_size / PAGE_SIZE; |
| profile.num_udav = 0; |
| |
| icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); |
| if ((int) icm_size < 0) { |
| err = icm_size; |
| goto err_stop_fw; |
| } |
| |
| err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); |
| if (err) |
| goto err_stop_fw; |
| |
| err = mthca_INIT_HCA(mdev, &init_hca, &status); |
| if (err) { |
| mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); |
| goto err_free_icm; |
| } |
| if (status) { |
| mthca_err(mdev, "INIT_HCA returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_free_icm; |
| } |
| |
| err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); |
| if (err) { |
| mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); |
| goto err_free_icm; |
| } |
| if (status) { |
| mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " |
| "aborting.\n", status); |
| err = -EINVAL; |
| goto err_free_icm; |
| } |
| |
| mdev->eq_table.inta_pin = adapter.inta_pin; |
| mdev->rev_id = adapter.revision_id; |
| |
| return 0; |
| |
| err_free_icm: |
| mthca_free_icm_table(mdev, mdev->cq_table.table); |
| mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); |
| mthca_free_icm_table(mdev, mdev->qp_table.qp_table); |
| mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); |
| mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); |
| mthca_unmap_eq_icm(mdev); |
| |
| mthca_UNMAP_ICM_AUX(mdev, &status); |
| mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); |
| |
| err_stop_fw: |
| mthca_UNMAP_FA(mdev, &status); |
| mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| |
| err_disable: |
| if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) |
| mthca_DISABLE_LAM(mdev, &status); |
| |
| return err; |
| } |
| |
| static int __devinit mthca_init_hca(struct mthca_dev *mdev) |
| { |
| if (mdev->hca_type == ARBEL_NATIVE) |
| return mthca_init_arbel(mdev); |
| else |
| return mthca_init_tavor(mdev); |
| } |
| |
| static int __devinit mthca_setup_hca(struct mthca_dev *dev) |
| { |
| int err; |
| u8 status; |
| |
| MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); |
| |
| err = mthca_init_uar_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "user access region table, aborting.\n"); |
| return err; |
| } |
| |
| err = mthca_uar_alloc(dev, &dev->driver_uar); |
| if (err) { |
| mthca_err(dev, "Failed to allocate driver access region, " |
| "aborting.\n"); |
| goto err_uar_table_free; |
| } |
| |
| dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); |
| if (!dev->kar) { |
| mthca_err(dev, "Couldn't map kernel access region, " |
| "aborting.\n"); |
| err = -ENOMEM; |
| goto err_uar_free; |
| } |
| |
| err = mthca_init_pd_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "protection domain table, aborting.\n"); |
| goto err_kar_unmap; |
| } |
| |
| err = mthca_init_mr_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "memory region table, aborting.\n"); |
| goto err_pd_table_free; |
| } |
| |
| err = mthca_pd_alloc(dev, &dev->driver_pd); |
| if (err) { |
| mthca_err(dev, "Failed to create driver PD, " |
| "aborting.\n"); |
| goto err_mr_table_free; |
| } |
| |
| err = mthca_init_eq_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "event queue table, aborting.\n"); |
| goto err_pd_free; |
| } |
| |
| err = mthca_cmd_use_events(dev); |
| if (err) { |
| mthca_err(dev, "Failed to switch to event-driven " |
| "firmware commands, aborting.\n"); |
| goto err_eq_table_free; |
| } |
| |
| err = mthca_NOP(dev, &status); |
| if (err || status) { |
| mthca_err(dev, "NOP command failed to generate interrupt, aborting.\n"); |
| if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) |
| mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); |
| else |
| mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); |
| |
| goto err_cmd_poll; |
| } |
| |
| mthca_dbg(dev, "NOP command IRQ test passed\n"); |
| |
| err = mthca_init_cq_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "completion queue table, aborting.\n"); |
| goto err_cmd_poll; |
| } |
| |
| err = mthca_init_qp_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "queue pair table, aborting.\n"); |
| goto err_cq_table_free; |
| } |
| |
| err = mthca_init_av_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "address vector table, aborting.\n"); |
| goto err_qp_table_free; |
| } |
| |
| err = mthca_init_mcg_table(dev); |
| if (err) { |
| mthca_err(dev, "Failed to initialize " |
| "multicast group table, aborting.\n"); |
| goto err_av_table_free; |
| } |
| |
| return 0; |
| |
| err_av_table_free: |
| mthca_cleanup_av_table(dev); |
| |
| err_qp_table_free: |
| mthca_cleanup_qp_table(dev); |
| |
| err_cq_table_free: |
| mthca_cleanup_cq_table(dev); |
| |
| err_cmd_poll: |
| mthca_cmd_use_polling(dev); |
| |
| err_eq_table_free: |
| mthca_cleanup_eq_table(dev); |
| |
| err_pd_free: |
| mthca_pd_free(dev, &dev->driver_pd); |
| |
| err_mr_table_free: |
| mthca_cleanup_mr_table(dev); |
| |
| err_pd_table_free: |
| mthca_cleanup_pd_table(dev); |
| |
| err_kar_unmap: |
| iounmap(dev->kar); |
| |
| err_uar_free: |
| mthca_uar_free(dev, &dev->driver_uar); |
| |
| err_uar_table_free: |
| mthca_cleanup_uar_table(dev); |
| return err; |
| } |
| |
| static int __devinit mthca_request_regions(struct pci_dev *pdev, |
| int ddr_hidden) |
| { |
| int err; |
| |
| /* |
| * We can't just use pci_request_regions() because the MSI-X |
| * table is right in the middle of the first BAR. If we did |
| * pci_request_region and grab all of the first BAR, then |
| * setting up MSI-X would fail, since the PCI core wants to do |
| * request_mem_region on the MSI-X vector table. |
| * |
| * So just request what we need right now, and request any |
| * other regions we need when setting up EQs. |
| */ |
| if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| MTHCA_HCR_SIZE, DRV_NAME)) |
| return -EBUSY; |
| |
| err = pci_request_region(pdev, 2, DRV_NAME); |
| if (err) |
| goto err_bar2_failed; |
| |
| if (!ddr_hidden) { |
| err = pci_request_region(pdev, 4, DRV_NAME); |
| if (err) |
| goto err_bar4_failed; |
| } |
| |
| return 0; |
| |
| err_bar4_failed: |
| pci_release_region(pdev, 2); |
| |
| err_bar2_failed: |
| release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| MTHCA_HCR_SIZE); |
| |
| return err; |
| } |
| |
| static void mthca_release_regions(struct pci_dev *pdev, |
| int ddr_hidden) |
| { |
| if (!ddr_hidden) |
| pci_release_region(pdev, 4); |
| |
| pci_release_region(pdev, 2); |
| |
| release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, |
| MTHCA_HCR_SIZE); |
| } |
| |
| static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) |
| { |
| struct msix_entry entries[3]; |
| int err; |
| |
| entries[0].entry = 0; |
| entries[1].entry = 1; |
| entries[2].entry = 2; |
| |
| err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); |
| if (err) { |
| if (err > 0) |
| mthca_info(mdev, "Only %d MSI-X vectors available, " |
| "not using MSI-X\n", err); |
| return err; |
| } |
| |
| mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; |
| mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; |
| mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; |
| |
| return 0; |
| } |
| |
| static void mthca_close_hca(struct mthca_dev *mdev) |
| { |
| u8 status; |
| |
| mthca_CLOSE_HCA(mdev, 0, &status); |
| |
| if (mdev->hca_type == ARBEL_NATIVE) { |
| mthca_free_icm_table(mdev, mdev->cq_table.table); |
| mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); |
| mthca_free_icm_table(mdev, mdev->qp_table.qp_table); |
| mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); |
| mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); |
| mthca_unmap_eq_icm(mdev); |
| |
| mthca_UNMAP_ICM_AUX(mdev, &status); |
| mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); |
| |
| mthca_UNMAP_FA(mdev, &status); |
| mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); |
| |
| if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) |
| mthca_DISABLE_LAM(mdev, &status); |
| } else |
| mthca_SYS_DIS(mdev, &status); |
| } |
| |
| static int __devinit mthca_init_one(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| static int mthca_version_printed = 0; |
| static int mthca_memfree_warned = 0; |
| int ddr_hidden = 0; |
| int err; |
| struct mthca_dev *mdev; |
| |
| if (!mthca_version_printed) { |
| printk(KERN_INFO "%s", mthca_version); |
| ++mthca_version_printed; |
| } |
| |
| printk(KERN_INFO PFX "Initializing %s (%s)\n", |
| pci_pretty_name(pdev), pci_name(pdev)); |
| |
| err = pci_enable_device(pdev); |
| if (err) { |
| dev_err(&pdev->dev, "Cannot enable PCI device, " |
| "aborting.\n"); |
| return err; |
| } |
| |
| /* |
| * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not |
| * be present) |
| */ |
| if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || |
| pci_resource_len(pdev, 0) != 1 << 20) { |
| dev_err(&pdev->dev, "Missing DCS, aborting."); |
| err = -ENODEV; |
| goto err_disable_pdev; |
| } |
| if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) || |
| pci_resource_len(pdev, 2) != 1 << 23) { |
| dev_err(&pdev->dev, "Missing UAR, aborting."); |
| err = -ENODEV; |
| goto err_disable_pdev; |
| } |
| if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) |
| ddr_hidden = 1; |
| |
| err = mthca_request_regions(pdev, ddr_hidden); |
| if (err) { |
| dev_err(&pdev->dev, "Cannot obtain PCI resources, " |
| "aborting.\n"); |
| goto err_disable_pdev; |
| } |
| |
| pci_set_master(pdev); |
| |
| err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
| if (err) { |
| dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); |
| err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| if (err) { |
| dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); |
| goto err_free_res; |
| } |
| } |
| err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
| if (err) { |
| dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " |
| "consistent PCI DMA mask.\n"); |
| err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); |
| if (err) { |
| dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " |
| "aborting.\n"); |
| goto err_free_res; |
| } |
| } |
| |
| mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); |
| if (!mdev) { |
| dev_err(&pdev->dev, "Device struct alloc failed, " |
| "aborting.\n"); |
| err = -ENOMEM; |
| goto err_free_res; |
| } |
| |
| mdev->pdev = pdev; |
| mdev->hca_type = id->driver_data; |
| |
| if (mdev->hca_type == ARBEL_NATIVE && !mthca_memfree_warned++) |
| mthca_warn(mdev, "Warning: native MT25208 mode support is incomplete. " |
| "Your HCA may not work properly.\n"); |
| |
| if (ddr_hidden) |
| mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; |
| |
| /* |
| * Now reset the HCA before we touch the PCI capabilities or |
| * attempt a firmware command, since a boot ROM may have left |
| * the HCA in an undefined state. |
| */ |
| err = mthca_reset(mdev); |
| if (err) { |
| mthca_err(mdev, "Failed to reset HCA, aborting.\n"); |
| goto err_free_dev; |
| } |
| |
| if (msi_x && !mthca_enable_msi_x(mdev)) |
| mdev->mthca_flags |= MTHCA_FLAG_MSI_X; |
| if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && |
| !pci_enable_msi(pdev)) |
| mdev->mthca_flags |= MTHCA_FLAG_MSI; |
| |
| sema_init(&mdev->cmd.hcr_sem, 1); |
| sema_init(&mdev->cmd.poll_sem, 1); |
| mdev->cmd.use_events = 0; |
| |
| mdev->hcr = ioremap(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, MTHCA_HCR_SIZE); |
| if (!mdev->hcr) { |
| mthca_err(mdev, "Couldn't map command register, " |
| "aborting.\n"); |
| err = -ENOMEM; |
| goto err_free_dev; |
| } |
| |
| err = mthca_tune_pci(mdev); |
| if (err) |
| goto err_iounmap; |
| |
| err = mthca_init_hca(mdev); |
| if (err) |
| goto err_iounmap; |
| |
| err = mthca_setup_hca(mdev); |
| if (err) |
| goto err_close; |
| |
| err = mthca_register_device(mdev); |
| if (err) |
| goto err_cleanup; |
| |
| err = mthca_create_agents(mdev); |
| if (err) |
| goto err_unregister; |
| |
| pci_set_drvdata(pdev, mdev); |
| |
| return 0; |
| |
| err_unregister: |
| mthca_unregister_device(mdev); |
| |
| err_cleanup: |
| mthca_cleanup_mcg_table(mdev); |
| mthca_cleanup_av_table(mdev); |
| mthca_cleanup_qp_table(mdev); |
| mthca_cleanup_cq_table(mdev); |
| mthca_cmd_use_polling(mdev); |
| mthca_cleanup_eq_table(mdev); |
| |
| mthca_pd_free(mdev, &mdev->driver_pd); |
| |
| mthca_cleanup_mr_table(mdev); |
| mthca_cleanup_pd_table(mdev); |
| mthca_cleanup_uar_table(mdev); |
| |
| err_close: |
| mthca_close_hca(mdev); |
| |
| err_iounmap: |
| iounmap(mdev->hcr); |
| |
| err_free_dev: |
| if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) |
| pci_disable_msix(pdev); |
| if (mdev->mthca_flags & MTHCA_FLAG_MSI) |
| pci_disable_msi(pdev); |
| |
| ib_dealloc_device(&mdev->ib_dev); |
| |
| err_free_res: |
| mthca_release_regions(pdev, ddr_hidden); |
| |
| err_disable_pdev: |
| pci_disable_device(pdev); |
| pci_set_drvdata(pdev, NULL); |
| return err; |
| } |
| |
| static void __devexit mthca_remove_one(struct pci_dev *pdev) |
| { |
| struct mthca_dev *mdev = pci_get_drvdata(pdev); |
| u8 status; |
| int p; |
| |
| if (mdev) { |
| mthca_free_agents(mdev); |
| mthca_unregister_device(mdev); |
| |
| for (p = 1; p <= mdev->limits.num_ports; ++p) |
| mthca_CLOSE_IB(mdev, p, &status); |
| |
| mthca_cleanup_mcg_table(mdev); |
| mthca_cleanup_av_table(mdev); |
| mthca_cleanup_qp_table(mdev); |
| mthca_cleanup_cq_table(mdev); |
| mthca_cmd_use_polling(mdev); |
| mthca_cleanup_eq_table(mdev); |
| |
| mthca_pd_free(mdev, &mdev->driver_pd); |
| |
| mthca_cleanup_mr_table(mdev); |
| mthca_cleanup_pd_table(mdev); |
| |
| iounmap(mdev->kar); |
| mthca_uar_free(mdev, &mdev->driver_uar); |
| mthca_cleanup_uar_table(mdev); |
| |
| mthca_close_hca(mdev); |
| |
| iounmap(mdev->hcr); |
| |
| if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) |
| pci_disable_msix(pdev); |
| if (mdev->mthca_flags & MTHCA_FLAG_MSI) |
| pci_disable_msi(pdev); |
| |
| ib_dealloc_device(&mdev->ib_dev); |
| mthca_release_regions(pdev, mdev->mthca_flags & |
| MTHCA_FLAG_DDR_HIDDEN); |
| pci_disable_device(pdev); |
| pci_set_drvdata(pdev, NULL); |
| } |
| } |
| |
| static struct pci_device_id mthca_pci_table[] = { |
| { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), |
| .driver_data = TAVOR }, |
| { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), |
| .driver_data = TAVOR }, |
| { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), |
| .driver_data = ARBEL_COMPAT }, |
| { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), |
| .driver_data = ARBEL_COMPAT }, |
| { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), |
| .driver_data = ARBEL_NATIVE }, |
| { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), |
| .driver_data = ARBEL_NATIVE }, |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, mthca_pci_table); |
| |
| static struct pci_driver mthca_driver = { |
| .name = "ib_mthca", |
| .id_table = mthca_pci_table, |
| .probe = mthca_init_one, |
| .remove = __devexit_p(mthca_remove_one) |
| }; |
| |
| static int __init mthca_init(void) |
| { |
| int ret; |
| |
| ret = pci_register_driver(&mthca_driver); |
| return ret < 0 ? ret : 0; |
| } |
| |
| static void __exit mthca_cleanup(void) |
| { |
| pci_unregister_driver(&mthca_driver); |
| } |
| |
| module_init(mthca_init); |
| module_exit(mthca_cleanup); |
