diff options
Diffstat (limited to 'drivers/net/mlx4/main.c')
| -rw-r--r-- | drivers/net/mlx4/main.c | 970 |
1 files changed, 0 insertions, 970 deletions
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c deleted file mode 100644 index 08bfc130a33..00000000000 --- a/drivers/net/mlx4/main.c +++ /dev/null @@ -1,970 +0,0 @@ -/* - * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. - * Copyright (c) 2006, 2007 Cisco Systems, Inc. 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. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> - -#include <linux/mlx4/device.h> -#include <linux/mlx4/doorbell.h> - -#include "mlx4.h" -#include "fw.h" -#include "icm.h" - -MODULE_AUTHOR("Roland Dreier"); -MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver"); -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_VERSION(DRV_VERSION); - -#ifdef CONFIG_MLX4_DEBUG - -int mlx4_debug_level = 0; -module_param_named(debug_level, mlx4_debug_level, int, 0644); -MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); - -#endif /* CONFIG_MLX4_DEBUG */ - -#ifdef CONFIG_PCI_MSI - -static int msi_x = 1; -module_param(msi_x, int, 0444); -MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); - -#else /* CONFIG_PCI_MSI */ - -#define msi_x (0) - -#endif /* CONFIG_PCI_MSI */ - -static char mlx4_version[] __devinitdata = - DRV_NAME ": Mellanox ConnectX core driver v" - DRV_VERSION " (" DRV_RELDATE ")\n"; - -static struct mlx4_profile default_profile = { - .num_qp = 1 << 16, - .num_srq = 1 << 16, - .rdmarc_per_qp = 1 << 4, - .num_cq = 1 << 16, - .num_mcg = 1 << 13, - .num_mpt = 1 << 17, - .num_mtt = 1 << 20, -}; - -static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) -{ - int err; - int i; - - err = mlx4_QUERY_DEV_CAP(dev, dev_cap); - if (err) { - mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); - return err; - } - - if (dev_cap->min_page_sz > PAGE_SIZE) { - mlx4_err(dev, "HCA minimum page size of %d bigger than " - "kernel PAGE_SIZE of %ld, aborting.\n", - dev_cap->min_page_sz, PAGE_SIZE); - return -ENODEV; - } - if (dev_cap->num_ports > MLX4_MAX_PORTS) { - mlx4_err(dev, "HCA has %d ports, but we only support %d, " - "aborting.\n", - dev_cap->num_ports, MLX4_MAX_PORTS); - return -ENODEV; - } - - if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) { - mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than " - "PCI resource 2 size of 0x%llx, aborting.\n", - dev_cap->uar_size, - (unsigned long long) pci_resource_len(dev->pdev, 2)); - return -ENODEV; - } - - dev->caps.num_ports = dev_cap->num_ports; - for (i = 1; i <= dev->caps.num_ports; ++i) { - dev->caps.vl_cap[i] = dev_cap->max_vl[i]; - dev->caps.mtu_cap[i] = dev_cap->max_mtu[i]; - dev->caps.gid_table_len[i] = dev_cap->max_gids[i]; - dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i]; - dev->caps.port_width_cap[i] = dev_cap->max_port_width[i]; - } - - dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE; - dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay; - dev->caps.bf_reg_size = dev_cap->bf_reg_size; - dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page; - dev->caps.max_sq_sg = dev_cap->max_sq_sg; - dev->caps.max_rq_sg = dev_cap->max_rq_sg; - dev->caps.max_wqes = dev_cap->max_qp_sz; - dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp; - dev->caps.reserved_qps = dev_cap->reserved_qps; - dev->caps.max_srq_wqes = dev_cap->max_srq_sz; - dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1; - dev->caps.reserved_srqs = dev_cap->reserved_srqs; - dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz; - dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz; - dev->caps.num_qp_per_mgm = MLX4_QP_PER_MGM; - /* - * Subtract 1 from the limit because we need to allocate a - * spare CQE so the HCA HW can tell the difference between an - * empty CQ and a full CQ. - */ - dev->caps.max_cqes = dev_cap->max_cq_sz - 1; - dev->caps.reserved_cqs = dev_cap->reserved_cqs; - dev->caps.reserved_eqs = dev_cap->reserved_eqs; - dev->caps.reserved_mtts = DIV_ROUND_UP(dev_cap->reserved_mtts, - MLX4_MTT_ENTRY_PER_SEG); - dev->caps.reserved_mrws = dev_cap->reserved_mrws; - dev->caps.reserved_uars = dev_cap->reserved_uars; - dev->caps.reserved_pds = dev_cap->reserved_pds; - dev->caps.mtt_entry_sz = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz; - dev->caps.max_msg_sz = dev_cap->max_msg_sz; - dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1); - dev->caps.flags = dev_cap->flags; - dev->caps.stat_rate_support = dev_cap->stat_rate_support; - - return 0; -} - -static int mlx4_load_fw(struct mlx4_dev *dev) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - int err; - - priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages, - GFP_HIGHUSER | __GFP_NOWARN, 0); - if (!priv->fw.fw_icm) { - mlx4_err(dev, "Couldn't allocate FW area, aborting.\n"); - return -ENOMEM; - } - - err = mlx4_MAP_FA(dev, priv->fw.fw_icm); - if (err) { - mlx4_err(dev, "MAP_FA command failed, aborting.\n"); - goto err_free; - } - - err = mlx4_RUN_FW(dev); - if (err) { - mlx4_err(dev, "RUN_FW command failed, aborting.\n"); - goto err_unmap_fa; - } - - return 0; - -err_unmap_fa: - mlx4_UNMAP_FA(dev); - -err_free: - mlx4_free_icm(dev, priv->fw.fw_icm, 0); - return err; -} - -static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base, - int cmpt_entry_sz) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - int err; - - err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table, - cmpt_base + - ((u64) (MLX4_CMPT_TYPE_QP * - cmpt_entry_sz) << MLX4_CMPT_SHIFT), - cmpt_entry_sz, dev->caps.num_qps, - dev->caps.reserved_qps, 0, 0); - if (err) - goto err; - - err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table, - cmpt_base + - ((u64) (MLX4_CMPT_TYPE_SRQ * - cmpt_entry_sz) << MLX4_CMPT_SHIFT), - cmpt_entry_sz, dev->caps.num_srqs, - dev->caps.reserved_srqs, 0, 0); - if (err) - goto err_qp; - - err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table, - cmpt_base + - ((u64) (MLX4_CMPT_TYPE_CQ * - cmpt_entry_sz) << MLX4_CMPT_SHIFT), - cmpt_entry_sz, dev->caps.num_cqs, - dev->caps.reserved_cqs, 0, 0); - if (err) - goto err_srq; - - err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table, - cmpt_base + - ((u64) (MLX4_CMPT_TYPE_EQ * - cmpt_entry_sz) << MLX4_CMPT_SHIFT), - cmpt_entry_sz, - roundup_pow_of_two(MLX4_NUM_EQ + - dev->caps.reserved_eqs), - MLX4_NUM_EQ + dev->caps.reserved_eqs, 0, 0); - if (err) - goto err_cq; - - return 0; - -err_cq: - mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); - -err_srq: - mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); - -err_qp: - mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); - -err: - return err; -} - -static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap, - struct mlx4_init_hca_param *init_hca, u64 icm_size) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - u64 aux_pages; - int err; - - err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages); - if (err) { - mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n"); - return err; - } - - mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n", - (unsigned long long) icm_size >> 10, - (unsigned long long) aux_pages << 2); - - priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages, - GFP_HIGHUSER | __GFP_NOWARN, 0); - if (!priv->fw.aux_icm) { - mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n"); - return -ENOMEM; - } - - err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm); - if (err) { - mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n"); - goto err_free_aux; - } - - err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz); - if (err) { - mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n"); - goto err_unmap_aux; - } - - err = mlx4_map_eq_icm(dev, init_hca->eqc_base); - if (err) { - mlx4_err(dev, "Failed to map EQ context memory, aborting.\n"); - goto err_unmap_cmpt; - } - - /* - * Reserved MTT entries must be aligned up to a cacheline - * boundary, since the FW will write to them, while the driver - * writes to all other MTT entries. (The variable - * dev->caps.mtt_entry_sz below is really the MTT segment - * size, not the raw entry size) - */ - dev->caps.reserved_mtts = - ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz, - dma_get_cache_alignment()) / dev->caps.mtt_entry_sz; - - err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table, - init_hca->mtt_base, - dev->caps.mtt_entry_sz, - dev->caps.num_mtt_segs, - dev->caps.reserved_mtts, 1, 0); - if (err) { - mlx4_err(dev, "Failed to map MTT context memory, aborting.\n"); - goto err_unmap_eq; - } - - err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table, - init_hca->dmpt_base, - dev_cap->dmpt_entry_sz, - dev->caps.num_mpts, - dev->caps.reserved_mrws, 1, 1); - if (err) { - mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n"); - goto err_unmap_mtt; - } - - err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table, - init_hca->qpc_base, - dev_cap->qpc_entry_sz, - dev->caps.num_qps, - dev->caps.reserved_qps, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map QP context memory, aborting.\n"); - goto err_unmap_dmpt; - } - - err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table, - init_hca->auxc_base, - dev_cap->aux_entry_sz, - dev->caps.num_qps, - dev->caps.reserved_qps, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n"); - goto err_unmap_qp; - } - - err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table, - init_hca->altc_base, - dev_cap->altc_entry_sz, - dev->caps.num_qps, - dev->caps.reserved_qps, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n"); - goto err_unmap_auxc; - } - - err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table, - init_hca->rdmarc_base, - dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift, - dev->caps.num_qps, - dev->caps.reserved_qps, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n"); - goto err_unmap_altc; - } - - err = mlx4_init_icm_table(dev, &priv->cq_table.table, - init_hca->cqc_base, - dev_cap->cqc_entry_sz, - dev->caps.num_cqs, - dev->caps.reserved_cqs, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map CQ context memory, aborting.\n"); - goto err_unmap_rdmarc; - } - - err = mlx4_init_icm_table(dev, &priv->srq_table.table, - init_hca->srqc_base, - dev_cap->srq_entry_sz, - dev->caps.num_srqs, - dev->caps.reserved_srqs, 0, 0); - if (err) { - mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n"); - goto err_unmap_cq; - } - - /* - * 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. - */ - err = mlx4_init_icm_table(dev, &priv->mcg_table.table, - init_hca->mc_base, MLX4_MGM_ENTRY_SIZE, - dev->caps.num_mgms + dev->caps.num_amgms, - dev->caps.num_mgms + dev->caps.num_amgms, - 0, 0); - if (err) { - mlx4_err(dev, "Failed to map MCG context memory, aborting.\n"); - goto err_unmap_srq; - } - - return 0; - -err_unmap_srq: - mlx4_cleanup_icm_table(dev, &priv->srq_table.table); - -err_unmap_cq: - mlx4_cleanup_icm_table(dev, &priv->cq_table.table); - -err_unmap_rdmarc: - mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table); - -err_unmap_altc: - mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table); - -err_unmap_auxc: - mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table); - -err_unmap_qp: - mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table); - -err_unmap_dmpt: - mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table); - -err_unmap_mtt: - mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table); - -err_unmap_eq: - mlx4_unmap_eq_icm(dev); - -err_unmap_cmpt: - mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); - -err_unmap_aux: - mlx4_UNMAP_ICM_AUX(dev); - -err_free_aux: - mlx4_free_icm(dev, priv->fw.aux_icm, 0); - - return err; -} - -static void mlx4_free_icms(struct mlx4_dev *dev) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - - mlx4_cleanup_icm_table(dev, &priv->mcg_table.table); - mlx4_cleanup_icm_table(dev, &priv->srq_table.table); - mlx4_cleanup_icm_table(dev, &priv->cq_table.table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table); - mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table); - mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table); - mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table); - mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table); - mlx4_unmap_eq_icm(dev); - - mlx4_UNMAP_ICM_AUX(dev); - mlx4_free_icm(dev, priv->fw.aux_icm, 0); -} - -static void mlx4_close_hca(struct mlx4_dev *dev) -{ - mlx4_CLOSE_HCA(dev, 0); - mlx4_free_icms(dev); - mlx4_UNMAP_FA(dev); - mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0); -} - -static int mlx4_init_hca(struct mlx4_dev *dev) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - struct mlx4_adapter adapter; - struct mlx4_dev_cap dev_cap; - struct mlx4_profile profile; - struct mlx4_init_hca_param init_hca; - u64 icm_size; - int err; - - err = mlx4_QUERY_FW(dev); - if (err) { - mlx4_err(dev, "QUERY_FW command failed, aborting.\n"); - return err; - } - - err = mlx4_load_fw(dev); - if (err) { - mlx4_err(dev, "Failed to start FW, aborting.\n"); - return err; - } - - err = mlx4_dev_cap(dev, &dev_cap); - if (err) { - mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); - goto err_stop_fw; - } - - profile = default_profile; - - icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca); - if ((long long) icm_size < 0) { - err = icm_size; - goto err_stop_fw; - } - - init_hca.log_uar_sz = ilog2(dev->caps.num_uars); - - err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); - if (err) - goto err_stop_fw; - - err = mlx4_INIT_HCA(dev, &init_hca); - if (err) { - mlx4_err(dev, "INIT_HCA command failed, aborting.\n"); - goto err_free_icm; - } - - err = mlx4_QUERY_ADAPTER(dev, &adapter); - if (err) { - mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n"); - goto err_close; - } - - priv->eq_table.inta_pin = adapter.inta_pin; - memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id); - - return 0; - -err_close: - mlx4_close_hca(dev); - -err_free_icm: - mlx4_free_icms(dev); - -err_stop_fw: - mlx4_UNMAP_FA(dev); - mlx4_free_icm(dev, priv->fw.fw_icm, 0); - - return err; -} - -static int mlx4_setup_hca(struct mlx4_dev *dev) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - int err; - - err = mlx4_init_uar_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "user access region table, aborting.\n"); - return err; - } - - err = mlx4_uar_alloc(dev, &priv->driver_uar); - if (err) { - mlx4_err(dev, "Failed to allocate driver access region, " - "aborting.\n"); - goto err_uar_table_free; - } - - priv->kar = ioremap(priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); - if (!priv->kar) { - mlx4_err(dev, "Couldn't map kernel access region, " - "aborting.\n"); - err = -ENOMEM; - goto err_uar_free; - } - - err = mlx4_init_pd_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "protection domain table, aborting.\n"); - goto err_kar_unmap; - } - - err = mlx4_init_mr_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "memory region table, aborting.\n"); - goto err_pd_table_free; - } - - err = mlx4_init_eq_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "event queue table, aborting.\n"); - goto err_mr_table_free; - } - - err = mlx4_cmd_use_events(dev); - if (err) { - mlx4_err(dev, "Failed to switch to event-driven " - "firmware commands, aborting.\n"); - goto err_eq_table_free; - } - - err = mlx4_NOP(dev); - if (err) { - if (dev->flags & MLX4_FLAG_MSI_X) { - mlx4_warn(dev, "NOP command failed to generate MSI-X " - "interrupt IRQ %d).\n", - priv->eq_table.eq[MLX4_EQ_ASYNC].irq); - mlx4_warn(dev, "Trying again without MSI-X.\n"); - } else { - mlx4_err(dev, "NOP command failed to generate interrupt " - "(IRQ %d), aborting.\n", - priv->eq_table.eq[MLX4_EQ_ASYNC].irq); - mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n"); - } - - goto err_cmd_poll; - } - - mlx4_dbg(dev, "NOP command IRQ test passed\n"); - - err = mlx4_init_cq_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "completion queue table, aborting.\n"); - goto err_cmd_poll; - } - - err = mlx4_init_srq_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "shared receive queue table, aborting.\n"); - goto err_cq_table_free; - } - - err = mlx4_init_qp_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "queue pair table, aborting.\n"); - goto err_srq_table_free; - } - - err = mlx4_init_mcg_table(dev); - if (err) { - mlx4_err(dev, "Failed to initialize " - "multicast group table, aborting.\n"); - goto err_qp_table_free; - } - - return 0; - -err_qp_table_free: - mlx4_cleanup_qp_table(dev); - -err_srq_table_free: - mlx4_cleanup_srq_table(dev); - -err_cq_table_free: - mlx4_cleanup_cq_table(dev); - -err_cmd_poll: - mlx4_cmd_use_polling(dev); - -err_eq_table_free: - mlx4_cleanup_eq_table(dev); - -err_mr_table_free: - mlx4_cleanup_mr_table(dev); - -err_pd_table_free: - mlx4_cleanup_pd_table(dev); - -err_kar_unmap: - iounmap(priv->kar); - -err_uar_free: - mlx4_uar_free(dev, &priv->driver_uar); - -err_uar_table_free: - mlx4_cleanup_uar_table(dev); - return err; -} - -static void mlx4_enable_msi_x(struct mlx4_dev *dev) -{ - struct mlx4_priv *priv = mlx4_priv(dev); - struct msix_entry entries[MLX4_NUM_EQ]; - int err; - int i; - - if (msi_x) { - for (i = 0; i < MLX4_NUM_EQ; ++i) - entries[i].entry = i; - - err = pci_enable_msix(dev->pdev, entries, ARRAY_SIZE(entries)); - if (err) { - if (err > 0) - mlx4_info(dev, "Only %d MSI-X vectors available, " - "not using MSI-X\n", err); - goto no_msi; - } - - for (i = 0; i < MLX4_NUM_EQ; ++i) - priv->eq_table.eq[i].irq = entries[i].vector; - - dev->flags |= MLX4_FLAG_MSI_X; - return; - } - -no_msi: - for (i = 0; i < MLX4_NUM_EQ; ++i) - priv->eq_table.eq[i].irq = dev->pdev->irq; -} - -static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct mlx4_priv *priv; - struct mlx4_dev *dev; - int err; - - printk(KERN_INFO PFX "Initializing %s\n", - 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.\n"); - err = -ENODEV; - goto err_disable_pdev; - } - if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { - dev_err(&pdev->dev, "Missing UAR, aborting.\n"); - err = -ENODEV; - goto err_disable_pdev; - } - - err = pci_request_region(pdev, 0, DRV_NAME); - if (err) { - dev_err(&pdev->dev, "Cannot request control region, aborting.\n"); - goto err_disable_pdev; - } - - err = pci_request_region(pdev, 2, DRV_NAME); - if (err) { - dev_err(&pdev->dev, "Cannot request UAR region, aborting.\n"); - goto err_release_bar0; - } - - 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_release_bar2; - } - } - 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_release_bar2; - } - } - - priv = kzalloc(sizeof *priv, GFP_KERNEL); - if (!priv) { - dev_err(&pdev->dev, "Device struct alloc failed, " - "aborting.\n"); - err = -ENOMEM; - goto err_release_bar2; - } - - dev = &priv->dev; - dev->pdev = pdev; - INIT_LIST_HEAD(&priv->ctx_list); - spin_lock_init(&priv->ctx_lock); - - /* - * 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 = mlx4_reset(dev); - if (err) { - mlx4_err(dev, "Failed to reset HCA, aborting.\n"); - goto err_free_dev; - } - - if (mlx4_cmd_init(dev)) { - mlx4_err(dev, "Failed to init command interface, aborting.\n"); - goto err_free_dev; - } - - err = mlx4_init_hca(dev); - if (err) - goto err_cmd; - - mlx4_enable_msi_x(dev); - - err = mlx4_setup_hca(dev); - if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) { - dev->flags &= ~MLX4_FLAG_MSI_X; - pci_disable_msix(pdev); - err = mlx4_setup_hca(dev); - } - - if (err) - goto err_close; - - err = mlx4_register_device(dev); - if (err) - goto err_cleanup; - - pci_set_drvdata(pdev, dev); - - return 0; - -err_cleanup: - mlx4_cleanup_mcg_table(dev); - mlx4_cleanup_qp_table(dev); - mlx4_cleanup_srq_table(dev); - mlx4_cleanup_cq_table(dev); - mlx4_cmd_use_polling(dev); - mlx4_cleanup_eq_table(dev); - mlx4_cleanup_mr_table(dev); - mlx4_cleanup_pd_table(dev); - mlx4_cleanup_uar_table(dev); - -err_close: - if (dev->flags & MLX4_FLAG_MSI_X) - pci_disable_msix(pdev); - - mlx4_close_hca(dev); - -err_cmd: - mlx4_cmd_cleanup(dev); - -err_free_dev: - kfree(priv); - -err_release_bar2: - pci_release_region(pdev, 2); - -err_release_bar0: - pci_release_region(pdev, 0); - -err_disable_pdev: - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - return err; -} - -static int __devinit mlx4_init_one(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - static int mlx4_version_printed; - - if (!mlx4_version_printed) { - printk(KERN_INFO "%s", mlx4_version); - ++mlx4_version_printed; - } - - return __mlx4_init_one(pdev, id); -} - -static void mlx4_remove_one(struct pci_dev *pdev) -{ - struct mlx4_dev *dev = pci_get_drvdata(pdev); - struct mlx4_priv *priv = mlx4_priv(dev); - int p; - - if (dev) { - mlx4_unregister_device(dev); - - for (p = 1; p <= dev->caps.num_ports; ++p) - mlx4_CLOSE_PORT(dev, p); - - mlx4_cleanup_mcg_table(dev); - mlx4_cleanup_qp_table(dev); - mlx4_cleanup_srq_table(dev); - mlx4_cleanup_cq_table(dev); - mlx4_cmd_use_polling(dev); - mlx4_cleanup_eq_table(dev); - mlx4_cleanup_mr_table(dev); - mlx4_cleanup_pd_table(dev); - - iounmap(priv->kar); - mlx4_uar_free(dev, &priv->driver_uar); - mlx4_cleanup_uar_table(dev); - mlx4_close_hca(dev); - mlx4_cmd_cleanup(dev); - - if (dev->flags & MLX4_FLAG_MSI_X) - pci_disable_msix(pdev); - - kfree(priv); - pci_release_region(pdev, 2); - pci_release_region(pdev, 0); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - } -} - -int mlx4_restart_one(struct pci_dev *pdev) -{ - mlx4_remove_one(pdev); - return __mlx4_init_one(pdev, NULL); -} - -static struct pci_device_id mlx4_pci_table[] = { - { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */ - { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */ - { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */ - { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */ - { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */ - { 0, } -}; - -MODULE_DEVICE_TABLE(pci, mlx4_pci_table); - -static struct pci_driver mlx4_driver = { - .name = DRV_NAME, - .id_table = mlx4_pci_table, - .probe = mlx4_init_one, - .remove = __devexit_p(mlx4_remove_one) -}; - -static int __init mlx4_init(void) -{ - int ret; - - ret = mlx4_catas_init(); - if (ret) - return ret; - - ret = pci_register_driver(&mlx4_driver); - return ret < 0 ? ret : 0; -} - -static void __exit mlx4_cleanup(void) -{ - pci_unregister_driver(&mlx4_driver); - mlx4_catas_cleanup(); -} - -module_init(mlx4_init); -module_exit(mlx4_cleanup); |