| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
| * Copyright (c) 2005, 2006, 2007, 2008 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/slab.h> |
| #include <linux/io-mapping.h> |
| #include <linux/delay.h> |
| #include <linux/kmod.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); |
| |
| struct workqueue_struct *mlx4_wq; |
| |
| #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 uint8_t num_vfs[3] = {0, 0, 0}; |
| static int num_vfs_argc; |
| module_param_array(num_vfs, byte , &num_vfs_argc, 0444); |
| MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n" |
| "num_vfs=port1,port2,port1+2"); |
| |
| static uint8_t probe_vf[3] = {0, 0, 0}; |
| static int probe_vfs_argc; |
| module_param_array(probe_vf, byte, &probe_vfs_argc, 0444); |
| MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n" |
| "probe_vf=port1,port2,port1+2"); |
| |
| int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE; |
| module_param_named(log_num_mgm_entry_size, |
| mlx4_log_num_mgm_entry_size, int, 0444); |
| MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num" |
| " of qp per mcg, for example:" |
| " 10 gives 248.range: 7 <=" |
| " log_num_mgm_entry_size <= 12." |
| " To activate device managed" |
| " flow steering when available, set to -1"); |
| |
| static bool enable_64b_cqe_eqe = true; |
| module_param(enable_64b_cqe_eqe, bool, 0444); |
| MODULE_PARM_DESC(enable_64b_cqe_eqe, |
| "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)"); |
| |
| #define PF_CONTEXT_BEHAVIOUR_MASK (MLX4_FUNC_CAP_64B_EQE_CQE | \ |
| MLX4_FUNC_CAP_EQE_CQE_STRIDE | \ |
| MLX4_FUNC_CAP_DMFS_A0_STATIC) |
| |
| #define RESET_PERSIST_MASK_FLAGS (MLX4_FLAG_SRIOV) |
| |
| static char mlx4_version[] = |
| DRV_NAME ": Mellanox ConnectX core driver v" |
| DRV_VERSION " (" DRV_RELDATE ")\n"; |
| |
| static struct mlx4_profile default_profile = { |
| .num_qp = 1 << 18, |
| .num_srq = 1 << 16, |
| .rdmarc_per_qp = 1 << 4, |
| .num_cq = 1 << 16, |
| .num_mcg = 1 << 13, |
| .num_mpt = 1 << 19, |
| .num_mtt = 1 << 20, /* It is really num mtt segements */ |
| }; |
| |
| static struct mlx4_profile low_mem_profile = { |
| .num_qp = 1 << 17, |
| .num_srq = 1 << 6, |
| .rdmarc_per_qp = 1 << 4, |
| .num_cq = 1 << 8, |
| .num_mcg = 1 << 8, |
| .num_mpt = 1 << 9, |
| .num_mtt = 1 << 7, |
| }; |
| |
| static int log_num_mac = 7; |
| module_param_named(log_num_mac, log_num_mac, int, 0444); |
| MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)"); |
| |
| static int log_num_vlan; |
| module_param_named(log_num_vlan, log_num_vlan, int, 0444); |
| MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)"); |
| /* Log2 max number of VLANs per ETH port (0-7) */ |
| #define MLX4_LOG_NUM_VLANS 7 |
| #define MLX4_MIN_LOG_NUM_VLANS 0 |
| #define MLX4_MIN_LOG_NUM_MAC 1 |
| |
| static bool use_prio; |
| module_param_named(use_prio, use_prio, bool, 0444); |
| MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)"); |
| |
| int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG); |
| module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444); |
| MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)"); |
| |
| static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE}; |
| static int arr_argc = 2; |
| module_param_array(port_type_array, int, &arr_argc, 0444); |
| MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default " |
| "1 for IB, 2 for Ethernet"); |
| |
| struct mlx4_port_config { |
| struct list_head list; |
| enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1]; |
| struct pci_dev *pdev; |
| }; |
| |
| static atomic_t pf_loading = ATOMIC_INIT(0); |
| |
| int mlx4_check_port_params(struct mlx4_dev *dev, |
| enum mlx4_port_type *port_type) |
| { |
| int i; |
| |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) { |
| for (i = 0; i < dev->caps.num_ports - 1; i++) { |
| if (port_type[i] != port_type[i + 1]) { |
| mlx4_err(dev, "Only same port types supported on this HCA, aborting\n"); |
| return -EINVAL; |
| } |
| } |
| } |
| |
| for (i = 0; i < dev->caps.num_ports; i++) { |
| if (!(port_type[i] & dev->caps.supported_type[i+1])) { |
| mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n", |
| i + 1); |
| return -EINVAL; |
| } |
| } |
| return 0; |
| } |
| |
| static void mlx4_set_port_mask(struct mlx4_dev *dev) |
| { |
| int i; |
| |
| for (i = 1; i <= dev->caps.num_ports; ++i) |
| dev->caps.port_mask[i] = dev->caps.port_type[i]; |
| } |
| |
| enum { |
| MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0, |
| }; |
| |
| static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) |
| { |
| int err = 0; |
| struct mlx4_func func; |
| |
| if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) { |
| err = mlx4_QUERY_FUNC(dev, &func, 0); |
| if (err) { |
| mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); |
| return err; |
| } |
| dev_cap->max_eqs = func.max_eq; |
| dev_cap->reserved_eqs = func.rsvd_eqs; |
| dev_cap->reserved_uars = func.rsvd_uars; |
| err |= MLX4_QUERY_FUNC_NUM_SYS_EQS; |
| } |
| return err; |
| } |
| |
| static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev) |
| { |
| struct mlx4_caps *dev_cap = &dev->caps; |
| |
| /* FW not supporting or cancelled by user */ |
| if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) || |
| !(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE)) |
| return; |
| |
| /* Must have 64B CQE_EQE enabled by FW to use bigger stride |
| * When FW has NCSI it may decide not to report 64B CQE/EQEs |
| */ |
| if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) || |
| !(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) { |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; |
| return; |
| } |
| |
| if (cache_line_size() == 128 || cache_line_size() == 256) { |
| mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n"); |
| /* Changing the real data inside CQE size to 32B */ |
| dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE; |
| dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE; |
| |
| if (mlx4_is_master(dev)) |
| dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE; |
| } else { |
| if (cache_line_size() != 32 && cache_line_size() != 64) |
| mlx4_dbg(dev, "Disabling CQE stride, cacheLine size unsupported\n"); |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; |
| } |
| } |
| |
| static int _mlx4_dev_port(struct mlx4_dev *dev, int port, |
| struct mlx4_port_cap *port_cap) |
| { |
| dev->caps.vl_cap[port] = port_cap->max_vl; |
| dev->caps.ib_mtu_cap[port] = port_cap->ib_mtu; |
| dev->phys_caps.gid_phys_table_len[port] = port_cap->max_gids; |
| dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys; |
| /* set gid and pkey table operating lengths by default |
| * to non-sriov values |
| */ |
| dev->caps.gid_table_len[port] = port_cap->max_gids; |
| dev->caps.pkey_table_len[port] = port_cap->max_pkeys; |
| dev->caps.port_width_cap[port] = port_cap->max_port_width; |
| dev->caps.eth_mtu_cap[port] = port_cap->eth_mtu; |
| dev->caps.def_mac[port] = port_cap->def_mac; |
| dev->caps.supported_type[port] = port_cap->supported_port_types; |
| dev->caps.suggested_type[port] = port_cap->suggested_type; |
| dev->caps.default_sense[port] = port_cap->default_sense; |
| dev->caps.trans_type[port] = port_cap->trans_type; |
| dev->caps.vendor_oui[port] = port_cap->vendor_oui; |
| dev->caps.wavelength[port] = port_cap->wavelength; |
| dev->caps.trans_code[port] = port_cap->trans_code; |
| |
| return 0; |
| } |
| |
| static int mlx4_dev_port(struct mlx4_dev *dev, int port, |
| struct mlx4_port_cap *port_cap) |
| { |
| int err = 0; |
| |
| err = mlx4_QUERY_PORT(dev, port, port_cap); |
| |
| if (err) |
| mlx4_err(dev, "QUERY_PORT command failed.\n"); |
| |
| return err; |
| } |
| |
| static inline void mlx4_enable_ignore_fcs(struct mlx4_dev *dev) |
| { |
| if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS)) |
| return; |
| |
| if (mlx4_is_mfunc(dev)) { |
| mlx4_dbg(dev, "SRIOV mode - Disabling Ignore FCS"); |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS; |
| return; |
| } |
| |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)) { |
| mlx4_dbg(dev, |
| "Keep FCS is not supported - Disabling Ignore FCS"); |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS; |
| return; |
| } |
| } |
| |
| #define MLX4_A0_STEERING_TABLE_SIZE 256 |
| 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; |
| } |
| mlx4_dev_cap_dump(dev, dev_cap); |
| |
| 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->persist->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->persist->pdev, 2)); |
| return -ENODEV; |
| } |
| |
| dev->caps.num_ports = dev_cap->num_ports; |
| dev->caps.num_sys_eqs = dev_cap->num_sys_eqs; |
| dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ? |
| dev->caps.num_sys_eqs : |
| MLX4_MAX_EQ_NUM; |
| for (i = 1; i <= dev->caps.num_ports; ++i) { |
| err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i); |
| if (err) { |
| mlx4_err(dev, "QUERY_PORT command failed, aborting\n"); |
| return err; |
| } |
| } |
| |
| dev->caps.uar_page_size = PAGE_SIZE; |
| 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.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; |
| /* |
| * 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 = dev_cap->reserved_mtts; |
| dev->caps.reserved_mrws = dev_cap->reserved_mrws; |
| |
| /* The first 128 UARs are used for EQ doorbells */ |
| dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars); |
| dev->caps.reserved_pds = dev_cap->reserved_pds; |
| dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ? |
| dev_cap->reserved_xrcds : 0; |
| dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ? |
| dev_cap->max_xrcds : 0; |
| dev->caps.mtt_entry_sz = 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.flags2 = dev_cap->flags2; |
| dev->caps.bmme_flags = dev_cap->bmme_flags; |
| dev->caps.reserved_lkey = dev_cap->reserved_lkey; |
| dev->caps.stat_rate_support = dev_cap->stat_rate_support; |
| dev->caps.max_gso_sz = dev_cap->max_gso_sz; |
| dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz; |
| |
| if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) { |
| struct mlx4_init_hca_param hca_param; |
| |
| memset(&hca_param, 0, sizeof(hca_param)); |
| err = mlx4_QUERY_HCA(dev, &hca_param); |
| /* Turn off PHV_EN flag in case phv_check_en is set. |
| * phv_check_en is a HW check that parse the packet and verify |
| * phv bit was reported correctly in the wqe. To allow QinQ |
| * PHV_EN flag should be set and phv_check_en must be cleared |
| * otherwise QinQ packets will be drop by the HW. |
| */ |
| if (err || hca_param.phv_check_en) |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_PHV_EN; |
| } |
| |
| /* Sense port always allowed on supported devices for ConnectX-1 and -2 */ |
| if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT) |
| dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; |
| /* Don't do sense port on multifunction devices (for now at least) */ |
| if (mlx4_is_mfunc(dev)) |
| dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; |
| |
| if (mlx4_low_memory_profile()) { |
| dev->caps.log_num_macs = MLX4_MIN_LOG_NUM_MAC; |
| dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS; |
| } else { |
| dev->caps.log_num_macs = log_num_mac; |
| dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS; |
| } |
| |
| for (i = 1; i <= dev->caps.num_ports; ++i) { |
| dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE; |
| if (dev->caps.supported_type[i]) { |
| /* if only ETH is supported - assign ETH */ |
| if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH) |
| dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH; |
| /* if only IB is supported, assign IB */ |
| else if (dev->caps.supported_type[i] == |
| MLX4_PORT_TYPE_IB) |
| dev->caps.port_type[i] = MLX4_PORT_TYPE_IB; |
| else { |
| /* if IB and ETH are supported, we set the port |
| * type according to user selection of port type; |
| * if user selected none, take the FW hint */ |
| if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE) |
| dev->caps.port_type[i] = dev->caps.suggested_type[i] ? |
| MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB; |
| else |
| dev->caps.port_type[i] = port_type_array[i - 1]; |
| } |
| } |
| /* |
| * Link sensing is allowed on the port if 3 conditions are true: |
| * 1. Both protocols are supported on the port. |
| * 2. Different types are supported on the port |
| * 3. FW declared that it supports link sensing |
| */ |
| mlx4_priv(dev)->sense.sense_allowed[i] = |
| ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) && |
| (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) && |
| (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)); |
| |
| /* |
| * If "default_sense" bit is set, we move the port to "AUTO" mode |
| * and perform sense_port FW command to try and set the correct |
| * port type from beginning |
| */ |
| if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) { |
| enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE; |
| dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO; |
| mlx4_SENSE_PORT(dev, i, &sensed_port); |
| if (sensed_port != MLX4_PORT_TYPE_NONE) |
| dev->caps.port_type[i] = sensed_port; |
| } else { |
| dev->caps.possible_type[i] = dev->caps.port_type[i]; |
| } |
| |
| if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) { |
| dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs; |
| mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n", |
| i, 1 << dev->caps.log_num_macs); |
| } |
| if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) { |
| dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans; |
| mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n", |
| i, 1 << dev->caps.log_num_vlans); |
| } |
| } |
| |
| if (mlx4_is_master(dev) && (dev->caps.num_ports == 2) && |
| (port_type_array[0] == MLX4_PORT_TYPE_IB) && |
| (port_type_array[1] == MLX4_PORT_TYPE_ETH)) { |
| mlx4_warn(dev, |
| "Granular QoS per VF not supported with IB/Eth configuration\n"); |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_QOS_VPP; |
| } |
| |
| dev->caps.max_counters = dev_cap->max_counters; |
| |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps; |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] = |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] = |
| (1 << dev->caps.log_num_macs) * |
| (1 << dev->caps.log_num_vlans) * |
| dev->caps.num_ports; |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH; |
| |
| if (dev_cap->dmfs_high_rate_qpn_base > 0 && |
| dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) |
| dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base; |
| else |
| dev->caps.dmfs_high_rate_qpn_base = |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; |
| |
| if (dev_cap->dmfs_high_rate_qpn_range > 0 && |
| dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) { |
| dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range; |
| dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT; |
| dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0; |
| } else { |
| dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED; |
| dev->caps.dmfs_high_rate_qpn_base = |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; |
| dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE; |
| } |
| |
| dev->caps.rl_caps = dev_cap->rl_caps; |
| |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] = |
| dev->caps.dmfs_high_rate_qpn_range; |
| |
| dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] + |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] + |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] + |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH]; |
| |
| dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0; |
| |
| if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) { |
| if (dev_cap->flags & |
| (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) { |
| mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n"); |
| dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE; |
| dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE; |
| } |
| |
| if (dev_cap->flags2 & |
| (MLX4_DEV_CAP_FLAG2_CQE_STRIDE | |
| MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) { |
| mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n"); |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE; |
| dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE; |
| } |
| } |
| |
| if ((dev->caps.flags & |
| (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) && |
| mlx4_is_master(dev)) |
| dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE; |
| |
| if (!mlx4_is_slave(dev)) { |
| mlx4_enable_cqe_eqe_stride(dev); |
| dev->caps.alloc_res_qp_mask = |
| (dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) | |
| MLX4_RESERVE_A0_QP; |
| |
| if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) && |
| dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) { |
| mlx4_warn(dev, "Old device ETS support detected\n"); |
| mlx4_warn(dev, "Consider upgrading device FW.\n"); |
| dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG; |
| } |
| |
| } else { |
| dev->caps.alloc_res_qp_mask = 0; |
| } |
| |
| mlx4_enable_ignore_fcs(dev); |
| |
| return 0; |
| } |
| |
| static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev, |
| enum pci_bus_speed *speed, |
| enum pcie_link_width *width) |
| { |
| u32 lnkcap1, lnkcap2; |
| int err1, err2; |
| |
| #define PCIE_MLW_CAP_SHIFT 4 /* start of MLW mask in link capabilities */ |
| |
| *speed = PCI_SPEED_UNKNOWN; |
| *width = PCIE_LNK_WIDTH_UNKNOWN; |
| |
| err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP, |
| &lnkcap1); |
| err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2, |
| &lnkcap2); |
| if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */ |
| if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB) |
| *speed = PCIE_SPEED_8_0GT; |
| else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB) |
| *speed = PCIE_SPEED_5_0GT; |
| else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB) |
| *speed = PCIE_SPEED_2_5GT; |
| } |
| if (!err1) { |
| *width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT; |
| if (!lnkcap2) { /* pre-r3.0 */ |
| if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB) |
| *speed = PCIE_SPEED_5_0GT; |
| else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB) |
| *speed = PCIE_SPEED_2_5GT; |
| } |
| } |
| |
| if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) { |
| return err1 ? err1 : |
| err2 ? err2 : -EINVAL; |
| } |
| return 0; |
| } |
| |
| static void mlx4_check_pcie_caps(struct mlx4_dev *dev) |
| { |
| enum pcie_link_width width, width_cap; |
| enum pci_bus_speed speed, speed_cap; |
| int err; |
| |
| #define PCIE_SPEED_STR(speed) \ |
| (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \ |
| speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \ |
| speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \ |
| "Unknown") |
| |
| err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap); |
| if (err) { |
| mlx4_warn(dev, |
| "Unable to determine PCIe device BW capabilities\n"); |
| return; |
| } |
| |
| err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width); |
| if (err || speed == PCI_SPEED_UNKNOWN || |
| width == PCIE_LNK_WIDTH_UNKNOWN) { |
| mlx4_warn(dev, |
| "Unable to determine PCI device chain minimum BW\n"); |
| return; |
| } |
| |
| if (width != width_cap || speed != speed_cap) |
| mlx4_warn(dev, |
| "PCIe BW is different than device's capability\n"); |
| |
| mlx4_info(dev, "PCIe link speed is %s, device supports %s\n", |
| PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap)); |
| mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n", |
| width, width_cap); |
| return; |
| } |
| |
| /*The function checks if there are live vf, return the num of them*/ |
| static int mlx4_how_many_lives_vf(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_slave_state *s_state; |
| int i; |
| int ret = 0; |
| |
| for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) { |
| s_state = &priv->mfunc.master.slave_state[i]; |
| if (s_state->active && s_state->last_cmd != |
| MLX4_COMM_CMD_RESET) { |
| mlx4_warn(dev, "%s: slave: %d is still active\n", |
| __func__, i); |
| ret++; |
| } |
| } |
| return ret; |
| } |
| |
| int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey) |
| { |
| u32 qk = MLX4_RESERVED_QKEY_BASE; |
| |
| if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX || |
| qpn < dev->phys_caps.base_proxy_sqpn) |
| return -EINVAL; |
| |
| if (qpn >= dev->phys_caps.base_tunnel_sqpn) |
| /* tunnel qp */ |
| qk += qpn - dev->phys_caps.base_tunnel_sqpn; |
| else |
| qk += qpn - dev->phys_caps.base_proxy_sqpn; |
| *qkey = qk; |
| return 0; |
| } |
| EXPORT_SYMBOL(mlx4_get_parav_qkey); |
| |
| void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val) |
| { |
| struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); |
| |
| if (!mlx4_is_master(dev)) |
| return; |
| |
| priv->virt2phys_pkey[slave][port - 1][i] = val; |
| } |
| EXPORT_SYMBOL(mlx4_sync_pkey_table); |
| |
| void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid) |
| { |
| struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); |
| |
| if (!mlx4_is_master(dev)) |
| return; |
| |
| priv->slave_node_guids[slave] = guid; |
| } |
| EXPORT_SYMBOL(mlx4_put_slave_node_guid); |
| |
| __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev); |
| |
| if (!mlx4_is_master(dev)) |
| return 0; |
| |
| return priv->slave_node_guids[slave]; |
| } |
| EXPORT_SYMBOL(mlx4_get_slave_node_guid); |
| |
| int mlx4_is_slave_active(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_slave_state *s_slave; |
| |
| if (!mlx4_is_master(dev)) |
| return 0; |
| |
| s_slave = &priv->mfunc.master.slave_state[slave]; |
| return !!s_slave->active; |
| } |
| EXPORT_SYMBOL(mlx4_is_slave_active); |
| |
| static void slave_adjust_steering_mode(struct mlx4_dev *dev, |
| struct mlx4_dev_cap *dev_cap, |
| struct mlx4_init_hca_param *hca_param) |
| { |
| dev->caps.steering_mode = hca_param->steering_mode; |
| if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { |
| dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry; |
| dev->caps.fs_log_max_ucast_qp_range_size = |
| dev_cap->fs_log_max_ucast_qp_range_size; |
| } else |
| dev->caps.num_qp_per_mgm = |
| 4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2); |
| |
| mlx4_dbg(dev, "Steering mode is: %s\n", |
| mlx4_steering_mode_str(dev->caps.steering_mode)); |
| } |
| |
| static int mlx4_slave_cap(struct mlx4_dev *dev) |
| { |
| int err; |
| u32 page_size; |
| struct mlx4_dev_cap dev_cap; |
| struct mlx4_func_cap func_cap; |
| struct mlx4_init_hca_param hca_param; |
| u8 i; |
| |
| memset(&hca_param, 0, sizeof(hca_param)); |
| err = mlx4_QUERY_HCA(dev, &hca_param); |
| if (err) { |
| mlx4_err(dev, "QUERY_HCA command failed, aborting\n"); |
| return err; |
| } |
| |
| /* fail if the hca has an unknown global capability |
| * at this time global_caps should be always zeroed |
| */ |
| if (hca_param.global_caps) { |
| mlx4_err(dev, "Unknown hca global capabilities\n"); |
| return -ENOSYS; |
| } |
| |
| mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz; |
| |
| dev->caps.hca_core_clock = hca_param.hca_core_clock; |
| |
| memset(&dev_cap, 0, sizeof(dev_cap)); |
| dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp; |
| err = mlx4_dev_cap(dev, &dev_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); |
| return err; |
| } |
| |
| err = mlx4_QUERY_FW(dev); |
| if (err) |
| mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n"); |
| |
| page_size = ~dev->caps.page_size_cap + 1; |
| mlx4_warn(dev, "HCA minimum page size:%d\n", page_size); |
| if (page_size > PAGE_SIZE) { |
| mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n", |
| page_size, PAGE_SIZE); |
| return -ENODEV; |
| } |
| |
| /* slave gets uar page size from QUERY_HCA fw command */ |
| dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12); |
| |
| /* TODO: relax this assumption */ |
| if (dev->caps.uar_page_size != PAGE_SIZE) { |
| mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n", |
| dev->caps.uar_page_size, PAGE_SIZE); |
| return -ENODEV; |
| } |
| |
| memset(&func_cap, 0, sizeof(func_cap)); |
| err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n", |
| err); |
| return err; |
| } |
| |
| if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) != |
| PF_CONTEXT_BEHAVIOUR_MASK) { |
| mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n", |
| func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK); |
| return -ENOSYS; |
| } |
| |
| dev->caps.num_ports = func_cap.num_ports; |
| dev->quotas.qp = func_cap.qp_quota; |
| dev->quotas.srq = func_cap.srq_quota; |
| dev->quotas.cq = func_cap.cq_quota; |
| dev->quotas.mpt = func_cap.mpt_quota; |
| dev->quotas.mtt = func_cap.mtt_quota; |
| dev->caps.num_qps = 1 << hca_param.log_num_qps; |
| dev->caps.num_srqs = 1 << hca_param.log_num_srqs; |
| dev->caps.num_cqs = 1 << hca_param.log_num_cqs; |
| dev->caps.num_mpts = 1 << hca_param.log_mpt_sz; |
| dev->caps.num_eqs = func_cap.max_eq; |
| dev->caps.reserved_eqs = func_cap.reserved_eq; |
| dev->caps.reserved_lkey = func_cap.reserved_lkey; |
| dev->caps.num_pds = MLX4_NUM_PDS; |
| dev->caps.num_mgms = 0; |
| dev->caps.num_amgms = 0; |
| |
| if (dev->caps.num_ports > MLX4_MAX_PORTS) { |
| mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n", |
| dev->caps.num_ports, MLX4_MAX_PORTS); |
| return -ENODEV; |
| } |
| |
| mlx4_replace_zero_macs(dev); |
| |
| dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL); |
| dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); |
| dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); |
| dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); |
| dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL); |
| |
| if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy || |
| !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy || |
| !dev->caps.qp0_qkey) { |
| err = -ENOMEM; |
| goto err_mem; |
| } |
| |
| for (i = 1; i <= dev->caps.num_ports; ++i) { |
| err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n", |
| i, err); |
| goto err_mem; |
| } |
| dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey; |
| dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn; |
| dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn; |
| dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn; |
| dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn; |
| dev->caps.port_mask[i] = dev->caps.port_type[i]; |
| dev->caps.phys_port_id[i] = func_cap.phys_port_id; |
| if (mlx4_get_slave_pkey_gid_tbl_len(dev, i, |
| &dev->caps.gid_table_len[i], |
| &dev->caps.pkey_table_len[i])) |
| goto err_mem; |
| } |
| |
| if (dev->caps.uar_page_size * (dev->caps.num_uars - |
| dev->caps.reserved_uars) > |
| pci_resource_len(dev->persist->pdev, |
| 2)) { |
| mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n", |
| dev->caps.uar_page_size * dev->caps.num_uars, |
| (unsigned long long) |
| pci_resource_len(dev->persist->pdev, 2)); |
| goto err_mem; |
| } |
| |
| if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) { |
| dev->caps.eqe_size = 64; |
| dev->caps.eqe_factor = 1; |
| } else { |
| dev->caps.eqe_size = 32; |
| dev->caps.eqe_factor = 0; |
| } |
| |
| if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) { |
| dev->caps.cqe_size = 64; |
| dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE; |
| } else { |
| dev->caps.cqe_size = 32; |
| } |
| |
| if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) { |
| dev->caps.eqe_size = hca_param.eqe_size; |
| dev->caps.eqe_factor = 0; |
| } |
| |
| if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) { |
| dev->caps.cqe_size = hca_param.cqe_size; |
| /* User still need to know when CQE > 32B */ |
| dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE; |
| } |
| |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; |
| mlx4_warn(dev, "Timestamping is not supported in slave mode\n"); |
| |
| slave_adjust_steering_mode(dev, &dev_cap, &hca_param); |
| mlx4_dbg(dev, "RSS support for IP fragments is %s\n", |
| hca_param.rss_ip_frags ? "on" : "off"); |
| |
| if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP && |
| dev->caps.bf_reg_size) |
| dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP; |
| |
| if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP) |
| dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP; |
| |
| return 0; |
| |
| err_mem: |
| kfree(dev->caps.qp0_qkey); |
| kfree(dev->caps.qp0_tunnel); |
| kfree(dev->caps.qp0_proxy); |
| kfree(dev->caps.qp1_tunnel); |
| kfree(dev->caps.qp1_proxy); |
| dev->caps.qp0_qkey = NULL; |
| dev->caps.qp0_tunnel = NULL; |
| dev->caps.qp0_proxy = NULL; |
| dev->caps.qp1_tunnel = NULL; |
| dev->caps.qp1_proxy = NULL; |
| |
| return err; |
| } |
| |
| static void mlx4_request_modules(struct mlx4_dev *dev) |
| { |
| int port; |
| int has_ib_port = false; |
| int has_eth_port = false; |
| #define EN_DRV_NAME "mlx4_en" |
| #define IB_DRV_NAME "mlx4_ib" |
| |
| for (port = 1; port <= dev->caps.num_ports; port++) { |
| if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB) |
| has_ib_port = true; |
| else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH) |
| has_eth_port = true; |
| } |
| |
| if (has_eth_port) |
| request_module_nowait(EN_DRV_NAME); |
| if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)) |
| request_module_nowait(IB_DRV_NAME); |
| } |
| |
| /* |
| * Change the port configuration of the device. |
| * Every user of this function must hold the port mutex. |
| */ |
| int mlx4_change_port_types(struct mlx4_dev *dev, |
| enum mlx4_port_type *port_types) |
| { |
| int err = 0; |
| int change = 0; |
| int port; |
| |
| for (port = 0; port < dev->caps.num_ports; port++) { |
| /* Change the port type only if the new type is different |
| * from the current, and not set to Auto */ |
| if (port_types[port] != dev->caps.port_type[port + 1]) |
| change = 1; |
| } |
| if (change) { |
| mlx4_unregister_device(dev); |
| for (port = 1; port <= dev->caps.num_ports; port++) { |
| mlx4_CLOSE_PORT(dev, port); |
| dev->caps.port_type[port] = port_types[port - 1]; |
| err = mlx4_SET_PORT(dev, port, -1); |
| if (err) { |
| mlx4_err(dev, "Failed to set port %d, aborting\n", |
| port); |
| goto out; |
| } |
| } |
| mlx4_set_port_mask(dev); |
| err = mlx4_register_device(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to register device\n"); |
| goto out; |
| } |
| mlx4_request_modules(dev); |
| } |
| |
| out: |
| return err; |
| } |
| |
| static ssize_t show_port_type(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, |
| port_attr); |
| struct mlx4_dev *mdev = info->dev; |
| char type[8]; |
| |
| sprintf(type, "%s", |
| (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ? |
| "ib" : "eth"); |
| if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO) |
| sprintf(buf, "auto (%s)\n", type); |
| else |
| sprintf(buf, "%s\n", type); |
| |
| return strlen(buf); |
| } |
| |
| static ssize_t set_port_type(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, |
| port_attr); |
| struct mlx4_dev *mdev = info->dev; |
| struct mlx4_priv *priv = mlx4_priv(mdev); |
| enum mlx4_port_type types[MLX4_MAX_PORTS]; |
| enum mlx4_port_type new_types[MLX4_MAX_PORTS]; |
| static DEFINE_MUTEX(set_port_type_mutex); |
| int i; |
| int err = 0; |
| |
| mutex_lock(&set_port_type_mutex); |
| |
| if (!strcmp(buf, "ib\n")) |
| info->tmp_type = MLX4_PORT_TYPE_IB; |
| else if (!strcmp(buf, "eth\n")) |
| info->tmp_type = MLX4_PORT_TYPE_ETH; |
| else if (!strcmp(buf, "auto\n")) |
| info->tmp_type = MLX4_PORT_TYPE_AUTO; |
| else { |
| mlx4_err(mdev, "%s is not supported port type\n", buf); |
| err = -EINVAL; |
| goto err_out; |
| } |
| |
| mlx4_stop_sense(mdev); |
| mutex_lock(&priv->port_mutex); |
| /* Possible type is always the one that was delivered */ |
| mdev->caps.possible_type[info->port] = info->tmp_type; |
| |
| for (i = 0; i < mdev->caps.num_ports; i++) { |
| types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type : |
| mdev->caps.possible_type[i+1]; |
| if (types[i] == MLX4_PORT_TYPE_AUTO) |
| types[i] = mdev->caps.port_type[i+1]; |
| } |
| |
| if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) && |
| !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) { |
| for (i = 1; i <= mdev->caps.num_ports; i++) { |
| if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) { |
| mdev->caps.possible_type[i] = mdev->caps.port_type[i]; |
| err = -EINVAL; |
| } |
| } |
| } |
| if (err) { |
| mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n"); |
| goto out; |
| } |
| |
| mlx4_do_sense_ports(mdev, new_types, types); |
| |
| err = mlx4_check_port_params(mdev, new_types); |
| if (err) |
| goto out; |
| |
| /* We are about to apply the changes after the configuration |
| * was verified, no need to remember the temporary types |
| * any more */ |
| for (i = 0; i < mdev->caps.num_ports; i++) |
| priv->port[i + 1].tmp_type = 0; |
| |
| err = mlx4_change_port_types(mdev, new_types); |
| |
| out: |
| mlx4_start_sense(mdev); |
| mutex_unlock(&priv->port_mutex); |
| err_out: |
| mutex_unlock(&set_port_type_mutex); |
| |
| return err ? err : count; |
| } |
| |
| enum ibta_mtu { |
| IB_MTU_256 = 1, |
| IB_MTU_512 = 2, |
| IB_MTU_1024 = 3, |
| IB_MTU_2048 = 4, |
| IB_MTU_4096 = 5 |
| }; |
| |
| static inline int int_to_ibta_mtu(int mtu) |
| { |
| switch (mtu) { |
| case 256: return IB_MTU_256; |
| case 512: return IB_MTU_512; |
| case 1024: return IB_MTU_1024; |
| case 2048: return IB_MTU_2048; |
| case 4096: return IB_MTU_4096; |
| default: return -1; |
| } |
| } |
| |
| static inline int ibta_mtu_to_int(enum ibta_mtu mtu) |
| { |
| switch (mtu) { |
| case IB_MTU_256: return 256; |
| case IB_MTU_512: return 512; |
| case IB_MTU_1024: return 1024; |
| case IB_MTU_2048: return 2048; |
| case IB_MTU_4096: return 4096; |
| default: return -1; |
| } |
| } |
| |
| static ssize_t show_port_ib_mtu(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, |
| port_mtu_attr); |
| struct mlx4_dev *mdev = info->dev; |
| |
| if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) |
| mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); |
| |
| sprintf(buf, "%d\n", |
| ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port])); |
| return strlen(buf); |
| } |
| |
| static ssize_t set_port_ib_mtu(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, |
| port_mtu_attr); |
| struct mlx4_dev *mdev = info->dev; |
| struct mlx4_priv *priv = mlx4_priv(mdev); |
| int err, port, mtu, ibta_mtu = -1; |
| |
| if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) { |
| mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); |
| return -EINVAL; |
| } |
| |
| err = kstrtoint(buf, 0, &mtu); |
| if (!err) |
| ibta_mtu = int_to_ibta_mtu(mtu); |
| |
| if (err || ibta_mtu < 0) { |
| mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf); |
| return -EINVAL; |
| } |
| |
| mdev->caps.port_ib_mtu[info->port] = ibta_mtu; |
| |
| mlx4_stop_sense(mdev); |
| mutex_lock(&priv->port_mutex); |
| mlx4_unregister_device(mdev); |
| for (port = 1; port <= mdev->caps.num_ports; port++) { |
| mlx4_CLOSE_PORT(mdev, port); |
| err = mlx4_SET_PORT(mdev, port, -1); |
| if (err) { |
| mlx4_err(mdev, "Failed to set port %d, aborting\n", |
| port); |
| goto err_set_port; |
| } |
| } |
| err = mlx4_register_device(mdev); |
| err_set_port: |
| mutex_unlock(&priv->port_mutex); |
| mlx4_start_sense(mdev); |
| return err ? err : count; |
| } |
| |
| int mlx4_bond(struct mlx4_dev *dev) |
| { |
| int ret = 0; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| mutex_lock(&priv->bond_mutex); |
| |
| if (!mlx4_is_bonded(dev)) |
| ret = mlx4_do_bond(dev, true); |
| else |
| ret = 0; |
| |
| mutex_unlock(&priv->bond_mutex); |
| if (ret) |
| mlx4_err(dev, "Failed to bond device: %d\n", ret); |
| else |
| mlx4_dbg(dev, "Device is bonded\n"); |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_bond); |
| |
| int mlx4_unbond(struct mlx4_dev *dev) |
| { |
| int ret = 0; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| mutex_lock(&priv->bond_mutex); |
| |
| if (mlx4_is_bonded(dev)) |
| ret = mlx4_do_bond(dev, false); |
| |
| mutex_unlock(&priv->bond_mutex); |
| if (ret) |
| mlx4_err(dev, "Failed to unbond device: %d\n", ret); |
| else |
| mlx4_dbg(dev, "Device is unbonded\n"); |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_unbond); |
| |
| |
| int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p) |
| { |
| u8 port1 = v2p->port1; |
| u8 port2 = v2p->port2; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int err; |
| |
| if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP)) |
| return -ENOTSUPP; |
| |
| mutex_lock(&priv->bond_mutex); |
| |
| /* zero means keep current mapping for this port */ |
| if (port1 == 0) |
| port1 = priv->v2p.port1; |
| if (port2 == 0) |
| port2 = priv->v2p.port2; |
| |
| if ((port1 < 1) || (port1 > MLX4_MAX_PORTS) || |
| (port2 < 1) || (port2 > MLX4_MAX_PORTS) || |
| (port1 == 2 && port2 == 1)) { |
| /* besides boundary checks cross mapping makes |
| * no sense and therefore not allowed */ |
| err = -EINVAL; |
| } else if ((port1 == priv->v2p.port1) && |
| (port2 == priv->v2p.port2)) { |
| err = 0; |
| } else { |
| err = mlx4_virt2phy_port_map(dev, port1, port2); |
| if (!err) { |
| mlx4_dbg(dev, "port map changed: [%d][%d]\n", |
| port1, port2); |
| priv->v2p.port1 = port1; |
| priv->v2p.port2 = port2; |
| } else { |
| mlx4_err(dev, "Failed to change port mape: %d\n", err); |
| } |
| } |
| |
| mutex_unlock(&priv->bond_mutex); |
| return err; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_port_map_set); |
| |
| 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; |
| int num_eqs; |
| |
| 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_cnt[MLX4_QP_REGION_FW], |
| 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; |
| |
| num_eqs = dev->phys_caps.num_phys_eqs; |
| 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, num_eqs, num_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 num_eqs; |
| 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; |
| } |
| |
| |
| num_eqs = dev->phys_caps.num_phys_eqs; |
| err = mlx4_init_icm_table(dev, &priv->eq_table.table, |
| init_hca->eqc_base, dev_cap->eqc_entry_sz, |
| num_eqs, num_eqs, 0, 0); |
| 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_mtts, |
| 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_cnt[MLX4_QP_REGION_FW], |
| 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_cnt[MLX4_QP_REGION_FW], |
| 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_cnt[MLX4_QP_REGION_FW], |
| 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_cnt[MLX4_QP_REGION_FW], |
| 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; |
| } |
| |
| /* |
| * For flow steering device managed mode it is required to use |
| * mlx4_init_icm_table. For B0 steering mode 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_get_mgm_entry_size(dev), |
| 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_cleanup_icm_table(dev, &priv->eq_table.table); |
| |
| 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.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_ICM_AUX(dev); |
| mlx4_free_icm(dev, priv->fw.aux_icm, 0); |
| } |
| |
| static void mlx4_slave_exit(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| mutex_lock(&priv->cmd.slave_cmd_mutex); |
| if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, |
| MLX4_COMM_TIME)) |
| mlx4_warn(dev, "Failed to close slave function\n"); |
| mutex_unlock(&priv->cmd.slave_cmd_mutex); |
| } |
| |
| static int map_bf_area(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| resource_size_t bf_start; |
| resource_size_t bf_len; |
| int err = 0; |
| |
| if (!dev->caps.bf_reg_size) |
| return -ENXIO; |
| |
| bf_start = pci_resource_start(dev->persist->pdev, 2) + |
| (dev->caps.num_uars << PAGE_SHIFT); |
| bf_len = pci_resource_len(dev->persist->pdev, 2) - |
| (dev->caps.num_uars << PAGE_SHIFT); |
| priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len); |
| if (!priv->bf_mapping) |
| err = -ENOMEM; |
| |
| return err; |
| } |
| |
| static void unmap_bf_area(struct mlx4_dev *dev) |
| { |
| if (mlx4_priv(dev)->bf_mapping) |
| io_mapping_free(mlx4_priv(dev)->bf_mapping); |
| } |
| |
| cycle_t mlx4_read_clock(struct mlx4_dev *dev) |
| { |
| u32 clockhi, clocklo, clockhi1; |
| cycle_t cycles; |
| int i; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| for (i = 0; i < 10; i++) { |
| clockhi = swab32(readl(priv->clock_mapping)); |
| clocklo = swab32(readl(priv->clock_mapping + 4)); |
| clockhi1 = swab32(readl(priv->clock_mapping)); |
| if (clockhi == clockhi1) |
| break; |
| } |
| |
| cycles = (u64) clockhi << 32 | (u64) clocklo; |
| |
| return cycles; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_read_clock); |
| |
| |
| static int map_internal_clock(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| priv->clock_mapping = |
| ioremap(pci_resource_start(dev->persist->pdev, |
| priv->fw.clock_bar) + |
| priv->fw.clock_offset, MLX4_CLOCK_SIZE); |
| |
| if (!priv->clock_mapping) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int mlx4_get_internal_clock_params(struct mlx4_dev *dev, |
| struct mlx4_clock_params *params) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| if (mlx4_is_slave(dev)) |
| return -ENOTSUPP; |
| |
| if (!params) |
| return -EINVAL; |
| |
| params->bar = priv->fw.clock_bar; |
| params->offset = priv->fw.clock_offset; |
| params->size = MLX4_CLOCK_SIZE; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_get_internal_clock_params); |
| |
| static void unmap_internal_clock(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| if (priv->clock_mapping) |
| iounmap(priv->clock_mapping); |
| } |
| |
| static void mlx4_close_hca(struct mlx4_dev *dev) |
| { |
| unmap_internal_clock(dev); |
| unmap_bf_area(dev); |
| if (mlx4_is_slave(dev)) |
| mlx4_slave_exit(dev); |
| else { |
| mlx4_CLOSE_HCA(dev, 0); |
| mlx4_free_icms(dev); |
| } |
| } |
| |
| static void mlx4_close_fw(struct mlx4_dev *dev) |
| { |
| if (!mlx4_is_slave(dev)) { |
| mlx4_UNMAP_FA(dev); |
| mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0); |
| } |
| } |
| |
| static int mlx4_comm_check_offline(struct mlx4_dev *dev) |
| { |
| #define COMM_CHAN_OFFLINE_OFFSET 0x09 |
| |
| u32 comm_flags; |
| u32 offline_bit; |
| unsigned long end; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies; |
| while (time_before(jiffies, end)) { |
| comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm + |
| MLX4_COMM_CHAN_FLAGS)); |
| offline_bit = (comm_flags & |
| (u32)(1 << COMM_CHAN_OFFLINE_OFFSET)); |
| if (!offline_bit) |
| return 0; |
| /* There are cases as part of AER/Reset flow that PF needs |
| * around 100 msec to load. We therefore sleep for 100 msec |
| * to allow other tasks to make use of that CPU during this |
| * time interval. |
| */ |
| msleep(100); |
| } |
| mlx4_err(dev, "Communication channel is offline.\n"); |
| return -EIO; |
| } |
| |
| static void mlx4_reset_vf_support(struct mlx4_dev *dev) |
| { |
| #define COMM_CHAN_RST_OFFSET 0x1e |
| |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| u32 comm_rst; |
| u32 comm_caps; |
| |
| comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm + |
| MLX4_COMM_CHAN_CAPS)); |
| comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET)); |
| |
| if (comm_rst) |
| dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET; |
| } |
| |
| static int mlx4_init_slave(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| u64 dma = (u64) priv->mfunc.vhcr_dma; |
| int ret_from_reset = 0; |
| u32 slave_read; |
| u32 cmd_channel_ver; |
| |
| if (atomic_read(&pf_loading)) { |
| mlx4_warn(dev, "PF is not ready - Deferring probe\n"); |
| return -EPROBE_DEFER; |
| } |
| |
| mutex_lock(&priv->cmd.slave_cmd_mutex); |
| priv->cmd.max_cmds = 1; |
| if (mlx4_comm_check_offline(dev)) { |
| mlx4_err(dev, "PF is not responsive, skipping initialization\n"); |
| goto err_offline; |
| } |
| |
| mlx4_reset_vf_support(dev); |
| mlx4_warn(dev, "Sending reset\n"); |
| ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, |
| MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME); |
| /* if we are in the middle of flr the slave will try |
| * NUM_OF_RESET_RETRIES times before leaving.*/ |
| if (ret_from_reset) { |
| if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) { |
| mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n"); |
| mutex_unlock(&priv->cmd.slave_cmd_mutex); |
| return -EPROBE_DEFER; |
| } else |
| goto err; |
| } |
| |
| /* check the driver version - the slave I/F revision |
| * must match the master's */ |
| slave_read = swab32(readl(&priv->mfunc.comm->slave_read)); |
| cmd_channel_ver = mlx4_comm_get_version(); |
| |
| if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) != |
| MLX4_COMM_GET_IF_REV(slave_read)) { |
| mlx4_err(dev, "slave driver version is not supported by the master\n"); |
| goto err; |
| } |
| |
| mlx4_warn(dev, "Sending vhcr0\n"); |
| if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48, |
| MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) |
| goto err; |
| if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32, |
| MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) |
| goto err; |
| if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16, |
| MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) |
| goto err; |
| if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, |
| MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME)) |
| goto err; |
| |
| mutex_unlock(&priv->cmd.slave_cmd_mutex); |
| return 0; |
| |
| err: |
| mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 0); |
| err_offline: |
| mutex_unlock(&priv->cmd.slave_cmd_mutex); |
| return -EIO; |
| } |
| |
| static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev) |
| { |
| int i; |
| |
| for (i = 1; i <= dev->caps.num_ports; i++) { |
| if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) |
| dev->caps.gid_table_len[i] = |
| mlx4_get_slave_num_gids(dev, 0, i); |
| else |
| dev->caps.gid_table_len[i] = 1; |
| dev->caps.pkey_table_len[i] = |
| dev->phys_caps.pkey_phys_table_len[i] - 1; |
| } |
| } |
| |
| static int choose_log_fs_mgm_entry_size(int qp_per_entry) |
| { |
| int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; |
| |
| for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE; |
| i++) { |
| if (qp_per_entry <= 4 * ((1 << i) / 16 - 2)) |
| break; |
| } |
| |
| return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1; |
| } |
| |
| static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode) |
| { |
| switch (dmfs_high_steer_mode) { |
| case MLX4_STEERING_DMFS_A0_DEFAULT: |
| return "default performance"; |
| |
| case MLX4_STEERING_DMFS_A0_DYNAMIC: |
| return "dynamic hybrid mode"; |
| |
| case MLX4_STEERING_DMFS_A0_STATIC: |
| return "performance optimized for limited rule configuration (static)"; |
| |
| case MLX4_STEERING_DMFS_A0_DISABLE: |
| return "disabled performance optimized steering"; |
| |
| case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED: |
| return "performance optimized steering not supported"; |
| |
| default: |
| return "Unrecognized mode"; |
| } |
| } |
| |
| #define MLX4_DMFS_A0_STEERING (1UL << 2) |
| |
| static void choose_steering_mode(struct mlx4_dev *dev, |
| struct mlx4_dev_cap *dev_cap) |
| { |
| if (mlx4_log_num_mgm_entry_size <= 0) { |
| if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) { |
| if (dev->caps.dmfs_high_steer_mode == |
| MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) |
| mlx4_err(dev, "DMFS high rate mode not supported\n"); |
| else |
| dev->caps.dmfs_high_steer_mode = |
| MLX4_STEERING_DMFS_A0_STATIC; |
| } |
| } |
| |
| if (mlx4_log_num_mgm_entry_size <= 0 && |
| dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN && |
| (!mlx4_is_mfunc(dev) || |
| (dev_cap->fs_max_num_qp_per_entry >= |
| (dev->persist->num_vfs + 1))) && |
| choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >= |
| MLX4_MIN_MGM_LOG_ENTRY_SIZE) { |
| dev->oper_log_mgm_entry_size = |
| choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry); |
| dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED; |
| dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry; |
| dev->caps.fs_log_max_ucast_qp_range_size = |
| dev_cap->fs_log_max_ucast_qp_range_size; |
| } else { |
| if (dev->caps.dmfs_high_steer_mode != |
| MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) |
| dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE; |
| if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER && |
| dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) |
| dev->caps.steering_mode = MLX4_STEERING_MODE_B0; |
| else { |
| dev->caps.steering_mode = MLX4_STEERING_MODE_A0; |
| |
| if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER || |
| dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) |
| mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n"); |
| } |
| dev->oper_log_mgm_entry_size = |
| mlx4_log_num_mgm_entry_size > 0 ? |
| mlx4_log_num_mgm_entry_size : |
| MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE; |
| dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev); |
| } |
| mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n", |
| mlx4_steering_mode_str(dev->caps.steering_mode), |
| dev->oper_log_mgm_entry_size, |
| mlx4_log_num_mgm_entry_size); |
| } |
| |
| static void choose_tunnel_offload_mode(struct mlx4_dev *dev, |
| struct mlx4_dev_cap *dev_cap) |
| { |
| if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && |
| dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) |
| dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN; |
| else |
| dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE; |
| |
| mlx4_dbg(dev, "Tunneling offload mode is: %s\n", (dev->caps.tunnel_offload_mode |
| == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none"); |
| } |
| |
| static int mlx4_validate_optimized_steering(struct mlx4_dev *dev) |
| { |
| int i; |
| struct mlx4_port_cap port_cap; |
| |
| if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) |
| return -EINVAL; |
| |
| for (i = 1; i <= dev->caps.num_ports; i++) { |
| if (mlx4_dev_port(dev, i, &port_cap)) { |
| mlx4_err(dev, |
| "QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n"); |
| } else if ((dev->caps.dmfs_high_steer_mode != |
| MLX4_STEERING_DMFS_A0_DEFAULT) && |
| (port_cap.dmfs_optimized_state == |
| !!(dev->caps.dmfs_high_steer_mode == |
| MLX4_STEERING_DMFS_A0_DISABLE))) { |
| mlx4_err(dev, |
| "DMFS high rate steer mode differ, driver requested %s but %s in FW.\n", |
| dmfs_high_rate_steering_mode_str( |
| dev->caps.dmfs_high_steer_mode), |
| (port_cap.dmfs_optimized_state ? |
| "enabled" : "disabled")); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int mlx4_init_fw(struct mlx4_dev *dev) |
| { |
| struct mlx4_mod_stat_cfg mlx4_cfg; |
| int err = 0; |
| |
| if (!mlx4_is_slave(dev)) { |
| err = mlx4_QUERY_FW(dev); |
| if (err) { |
| if (err == -EACCES) |
| mlx4_info(dev, "non-primary physical function, skipping\n"); |
| else |
| 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; |
| } |
| |
| mlx4_cfg.log_pg_sz_m = 1; |
| mlx4_cfg.log_pg_sz = 0; |
| err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg); |
| if (err) |
| mlx4_warn(dev, "Failed to override log_pg_sz parameter\n"); |
| } |
| |
| return err; |
| } |
| |
| 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; |
| struct mlx4_config_dev_params params; |
| int err; |
| |
| if (!mlx4_is_slave(dev)) { |
| err = mlx4_dev_cap(dev, &dev_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); |
| return err; |
| } |
| |
| choose_steering_mode(dev, &dev_cap); |
| choose_tunnel_offload_mode(dev, &dev_cap); |
| |
| if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC && |
| mlx4_is_master(dev)) |
| dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC; |
| |
| err = mlx4_get_phys_port_id(dev); |
| if (err) |
| mlx4_err(dev, "Fail to get physical port id\n"); |
| |
| if (mlx4_is_master(dev)) |
| mlx4_parav_master_pf_caps(dev); |
| |
| if (mlx4_low_memory_profile()) { |
| mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n"); |
| profile = low_mem_profile; |
| } else { |
| profile = default_profile; |
| } |
| if (dev->caps.steering_mode == |
| MLX4_STEERING_MODE_DEVICE_MANAGED) |
| profile.num_mcg = MLX4_FS_NUM_MCG; |
| |
| icm_size = mlx4_make_profile(dev, &profile, &dev_cap, |
| &init_hca); |
| if ((long long) icm_size < 0) { |
| err = icm_size; |
| return err; |
| } |
| |
| dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1; |
| |
| init_hca.log_uar_sz = ilog2(dev->caps.num_uars); |
| init_hca.uar_page_sz = PAGE_SHIFT - 12; |
| init_hca.mw_enabled = 0; |
| if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || |
| dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) |
| init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE; |
| |
| err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); |
| if (err) |
| return err; |
| |
| err = mlx4_INIT_HCA(dev, &init_hca); |
| if (err) { |
| mlx4_err(dev, "INIT_HCA command failed, aborting\n"); |
| goto err_free_icm; |
| } |
| |
| if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) { |
| err = mlx4_query_func(dev, &dev_cap); |
| if (err < 0) { |
| mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n"); |
| goto err_close; |
| } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) { |
| dev->caps.num_eqs = dev_cap.max_eqs; |
| dev->caps.reserved_eqs = dev_cap.reserved_eqs; |
| dev->caps.reserved_uars = dev_cap.reserved_uars; |
| } |
| } |
| |
| /* |
| * If TS is supported by FW |
| * read HCA frequency by QUERY_HCA command |
| */ |
| if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) { |
| memset(&init_hca, 0, sizeof(init_hca)); |
| err = mlx4_QUERY_HCA(dev, &init_hca); |
| if (err) { |
| mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n"); |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; |
| } else { |
| dev->caps.hca_core_clock = |
| init_hca.hca_core_clock; |
| } |
| |
| /* In case we got HCA frequency 0 - disable timestamping |
| * to avoid dividing by zero |
| */ |
| if (!dev->caps.hca_core_clock) { |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; |
| mlx4_err(dev, |
| "HCA frequency is 0 - timestamping is not supported\n"); |
| } else if (map_internal_clock(dev)) { |
| /* |
| * Map internal clock, |
| * in case of failure disable timestamping |
| */ |
| dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS; |
| mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n"); |
| } |
| } |
| |
| if (dev->caps.dmfs_high_steer_mode != |
| MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) { |
| if (mlx4_validate_optimized_steering(dev)) |
| mlx4_warn(dev, "Optimized steering validation failed\n"); |
| |
| if (dev->caps.dmfs_high_steer_mode == |
| MLX4_STEERING_DMFS_A0_DISABLE) { |
| dev->caps.dmfs_high_rate_qpn_base = |
| dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; |
| dev->caps.dmfs_high_rate_qpn_range = |
| MLX4_A0_STEERING_TABLE_SIZE; |
| } |
| |
| mlx4_dbg(dev, "DMFS high rate steer mode is: %s\n", |
| dmfs_high_rate_steering_mode_str( |
| dev->caps.dmfs_high_steer_mode)); |
| } |
| } else { |
| err = mlx4_init_slave(dev); |
| if (err) { |
| if (err != -EPROBE_DEFER) |
| mlx4_err(dev, "Failed to initialize slave\n"); |
| return err; |
| } |
| |
| err = mlx4_slave_cap(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to obtain slave caps\n"); |
| goto err_close; |
| } |
| } |
| |
| if (map_bf_area(dev)) |
| mlx4_dbg(dev, "Failed to map blue flame area\n"); |
| |
| /*Only the master set the ports, all the rest got it from it.*/ |
| if (!mlx4_is_slave(dev)) |
| mlx4_set_port_mask(dev); |
| |
| err = mlx4_QUERY_ADAPTER(dev, &adapter); |
| if (err) { |
| mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n"); |
| goto unmap_bf; |
| } |
| |
| /* Query CONFIG_DEV parameters */ |
| err = mlx4_config_dev_retrieval(dev, ¶ms); |
| if (err && err != -ENOTSUPP) { |
| mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n"); |
| } else if (!err) { |
| dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1; |
| dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2; |
| } |
| priv->eq_table.inta_pin = adapter.inta_pin; |
| memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id); |
| |
| return 0; |
| |
| unmap_bf: |
| unmap_internal_clock(dev); |
| unmap_bf_area(dev); |
| |
| if (mlx4_is_slave(dev)) { |
| kfree(dev->caps.qp0_qkey); |
| kfree(dev->caps.qp0_tunnel); |
| kfree(dev->caps.qp0_proxy); |
| kfree(dev->caps.qp1_tunnel); |
| kfree(dev->caps.qp1_proxy); |
| } |
| |
| err_close: |
| if (mlx4_is_slave(dev)) |
| mlx4_slave_exit(dev); |
| else |
| mlx4_CLOSE_HCA(dev, 0); |
| |
| err_free_icm: |
| if (!mlx4_is_slave(dev)) |
| mlx4_free_icms(dev); |
| |
| return err; |
| } |
| |
| static int mlx4_init_counters_table(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int nent_pow2; |
| |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) |
| return -ENOENT; |
| |
| if (!dev->caps.max_counters) |
| return -ENOSPC; |
| |
| nent_pow2 = roundup_pow_of_two(dev->caps.max_counters); |
| /* reserve last counter index for sink counter */ |
| return mlx4_bitmap_init(&priv->counters_bitmap, nent_pow2, |
| nent_pow2 - 1, 0, |
| nent_pow2 - dev->caps.max_counters + 1); |
| } |
| |
| static void mlx4_cleanup_counters_table(struct mlx4_dev *dev) |
| { |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) |
| return; |
| |
| if (!dev->caps.max_counters) |
| return; |
| |
| mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap); |
| } |
| |
| static void mlx4_cleanup_default_counters(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int port; |
| |
| for (port = 0; port < dev->caps.num_ports; port++) |
| if (priv->def_counter[port] != -1) |
| mlx4_counter_free(dev, priv->def_counter[port]); |
| } |
| |
| static int mlx4_allocate_default_counters(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int port, err = 0; |
| u32 idx; |
| |
| for (port = 0; port < dev->caps.num_ports; port++) |
| priv->def_counter[port] = -1; |
| |
| for (port = 0; port < dev->caps.num_ports; port++) { |
| err = mlx4_counter_alloc(dev, &idx); |
| |
| if (!err || err == -ENOSPC) { |
| priv->def_counter[port] = idx; |
| } else if (err == -ENOENT) { |
| err = 0; |
| continue; |
| } else if (mlx4_is_slave(dev) && err == -EINVAL) { |
| priv->def_counter[port] = MLX4_SINK_COUNTER_INDEX(dev); |
| mlx4_warn(dev, "can't allocate counter from old PF driver, using index %d\n", |
| MLX4_SINK_COUNTER_INDEX(dev)); |
| err = 0; |
| } else { |
| mlx4_err(dev, "%s: failed to allocate default counter port %d err %d\n", |
| __func__, port + 1, err); |
| mlx4_cleanup_default_counters(dev); |
| return err; |
| } |
| |
| mlx4_dbg(dev, "%s: default counter index %d for port %d\n", |
| __func__, priv->def_counter[port], port + 1); |
| } |
| |
| return err; |
| } |
| |
| int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) |
| return -ENOENT; |
| |
| *idx = mlx4_bitmap_alloc(&priv->counters_bitmap); |
| if (*idx == -1) { |
| *idx = MLX4_SINK_COUNTER_INDEX(dev); |
| return -ENOSPC; |
| } |
| |
| return 0; |
| } |
| |
| int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx) |
| { |
| u64 out_param; |
| int err; |
| |
| if (mlx4_is_mfunc(dev)) { |
| err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER, |
| RES_OP_RESERVE, MLX4_CMD_ALLOC_RES, |
| MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); |
| if (!err) |
| *idx = get_param_l(&out_param); |
| |
| return err; |
| } |
| return __mlx4_counter_alloc(dev, idx); |
| } |
| EXPORT_SYMBOL_GPL(mlx4_counter_alloc); |
| |
| static int __mlx4_clear_if_stat(struct mlx4_dev *dev, |
| u8 counter_index) |
| { |
| struct mlx4_cmd_mailbox *if_stat_mailbox; |
| int err; |
| u32 if_stat_in_mod = (counter_index & 0xff) | MLX4_QUERY_IF_STAT_RESET; |
| |
| if_stat_mailbox = mlx4_alloc_cmd_mailbox(dev); |
| if (IS_ERR(if_stat_mailbox)) |
| return PTR_ERR(if_stat_mailbox); |
| |
| err = mlx4_cmd_box(dev, 0, if_stat_mailbox->dma, if_stat_in_mod, 0, |
| MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C, |
| MLX4_CMD_NATIVE); |
| |
| mlx4_free_cmd_mailbox(dev, if_stat_mailbox); |
| return err; |
| } |
| |
| void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx) |
| { |
| if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS)) |
| return; |
| |
| if (idx == MLX4_SINK_COUNTER_INDEX(dev)) |
| return; |
| |
| __mlx4_clear_if_stat(dev, idx); |
| |
| mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR); |
| return; |
| } |
| |
| void mlx4_counter_free(struct mlx4_dev *dev, u32 idx) |
| { |
| u64 in_param = 0; |
| |
| if (mlx4_is_mfunc(dev)) { |
| set_param_l(&in_param, idx); |
| mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE, |
| MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_WRAPPED); |
| return; |
| } |
| __mlx4_counter_free(dev, idx); |
| } |
| EXPORT_SYMBOL_GPL(mlx4_counter_free); |
| |
| int mlx4_get_default_counter_index(struct mlx4_dev *dev, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| return priv->def_counter[port - 1]; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_get_default_counter_index); |
| |
| void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| priv->mfunc.master.vf_admin[entry].vport[port].guid = guid; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_set_admin_guid); |
| |
| __be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| return priv->mfunc.master.vf_admin[entry].vport[port].guid; |
| } |
| EXPORT_SYMBOL_GPL(mlx4_get_admin_guid); |
| |
| void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| __be64 guid; |
| |
| /* hw GUID */ |
| if (entry == 0) |
| return; |
| |
| get_random_bytes((char *)&guid, sizeof(guid)); |
| guid &= ~(cpu_to_be64(1ULL << 56)); |
| guid |= cpu_to_be64(1ULL << 57); |
| priv->mfunc.master.vf_admin[entry].vport[port].guid = guid; |
| } |
| |
| static int mlx4_setup_hca(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int err; |
| int port; |
| __be32 ib_port_default_caps; |
| |
| 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((phys_addr_t) 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_xrcd_table(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n"); |
| goto err_pd_table_free; |
| } |
| |
| err = mlx4_init_mr_table(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to initialize memory region table, aborting\n"); |
| goto err_xrcd_table_free; |
| } |
| |
| if (!mlx4_is_slave(dev)) { |
| err = mlx4_init_mcg_table(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to initialize multicast group table, aborting\n"); |
| goto err_mr_table_free; |
| } |
| err = mlx4_config_mad_demux(dev); |
| if (err) { |
| mlx4_err(dev, "Failed in config_mad_demux, aborting\n"); |
| goto err_mcg_table_free; |
| } |
| } |
| |
| err = mlx4_init_eq_table(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to initialize event queue table, aborting\n"); |
| goto err_mcg_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; |
| } |
| |
| if (!mlx4_is_slave(dev)) { |
| err = mlx4_init_counters_table(dev); |
| if (err && err != -ENOENT) { |
| mlx4_err(dev, "Failed to initialize counters table, aborting\n"); |
| goto err_qp_table_free; |
| } |
| } |
| |
| err = mlx4_allocate_default_counters(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to allocate default counters, aborting\n"); |
| goto err_counters_table_free; |
| } |
| |
| if (!mlx4_is_slave(dev)) { |
| for (port = 1; port <= dev->caps.num_ports; port++) { |
| ib_port_default_caps = 0; |
| err = mlx4_get_port_ib_caps(dev, port, |
| &ib_port_default_caps); |
| if (err) |
| mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n", |
| port, err); |
| dev->caps.ib_port_def_cap[port] = ib_port_default_caps; |
| |
| /* initialize per-slave default ib port capabilities */ |
| if (mlx4_is_master(dev)) { |
| int i; |
| for (i = 0; i < dev->num_slaves; i++) { |
| if (i == mlx4_master_func_num(dev)) |
| continue; |
| priv->mfunc.master.slave_state[i].ib_cap_mask[port] = |
| ib_port_default_caps; |
| } |
| } |
| |
| if (mlx4_is_mfunc(dev)) |
| dev->caps.port_ib_mtu[port] = IB_MTU_2048; |
| else |
| dev->caps.port_ib_mtu[port] = IB_MTU_4096; |
| |
| err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ? |
| dev->caps.pkey_table_len[port] : -1); |
| if (err) { |
| mlx4_err(dev, "Failed to set port %d, aborting\n", |
| port); |
| goto err_default_countes_free; |
| } |
| } |
| } |
| |
| return 0; |
| |
| err_default_countes_free: |
| mlx4_cleanup_default_counters(dev); |
| |
| err_counters_table_free: |
| if (!mlx4_is_slave(dev)) |
| mlx4_cleanup_counters_table(dev); |
| |
| 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_mcg_table_free: |
| if (!mlx4_is_slave(dev)) |
| mlx4_cleanup_mcg_table(dev); |
| |
| err_mr_table_free: |
| mlx4_cleanup_mr_table(dev); |
| |
| err_xrcd_table_free: |
| mlx4_cleanup_xrcd_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 int mlx4_init_affinity_hint(struct mlx4_dev *dev, int port, int eqn) |
| { |
| int requested_cpu = 0; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_eq *eq; |
| int off = 0; |
| int i; |
| |
| if (eqn > dev->caps.num_comp_vectors) |
| return -EINVAL; |
| |
| for (i = 1; i < port; i++) |
| off += mlx4_get_eqs_per_port(dev, i); |
| |
| requested_cpu = eqn - off - !!(eqn > MLX4_EQ_ASYNC); |
| |
| /* Meaning EQs are shared, and this call comes from the second port */ |
| if (requested_cpu < 0) |
| return 0; |
| |
| eq = &priv->eq_table.eq[eqn]; |
| |
| if (!zalloc_cpumask_var(&eq->affinity_mask, GFP_KERNEL)) |
| return -ENOMEM; |
| |
| cpumask_set_cpu(requested_cpu, eq->affinity_mask); |
| |
| return 0; |
| } |
| |
| static void mlx4_enable_msi_x(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct msix_entry *entries; |
| int i; |
| int port = 0; |
| |
| if (msi_x) { |
| int nreq = dev->caps.num_ports * num_online_cpus() + 1; |
| bool shared_ports = false; |
| |
| nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, |
| nreq); |
| if (nreq > MAX_MSIX) { |
| nreq = MAX_MSIX; |
| shared_ports = true; |
| } |
| |
| entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); |
| if (!entries) |
| goto no_msi; |
| |
| for (i = 0; i < nreq; ++i) |
| entries[i].entry = i; |
| |
| nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2, |
| nreq); |
| |
| if (nreq < 0 || nreq < MLX4_EQ_ASYNC) { |
| kfree(entries); |
| goto no_msi; |
| } |
| /* 1 is reserved for events (asyncrounous EQ) */ |
| dev->caps.num_comp_vectors = nreq - 1; |
| |
| priv->eq_table.eq[MLX4_EQ_ASYNC].irq = entries[0].vector; |
| bitmap_zero(priv->eq_table.eq[MLX4_EQ_ASYNC].actv_ports.ports, |
| dev->caps.num_ports); |
| |
| if (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) |
| shared_ports = true; |
| |
| for (i = 0; i < dev->caps.num_comp_vectors + 1; i++) { |
| if (i == MLX4_EQ_ASYNC) |
| continue; |
| |
| priv->eq_table.eq[i].irq = |
| entries[i + 1 - !!(i > MLX4_EQ_ASYNC)].vector; |
| |
| if (shared_ports) { |
| bitmap_fill(priv->eq_table.eq[i].actv_ports.ports, |
| dev->caps.num_ports); |
| /* We don't set affinity hint when there |
| * aren't enough EQs |
| */ |
| } else { |
| set_bit(port, |
| priv->eq_table.eq[i].actv_ports.ports); |
| if (mlx4_init_affinity_hint(dev, port + 1, i)) |
| mlx4_warn(dev, "Couldn't init hint cpumask for EQ %d\n", |
| i); |
| } |
| /* We divide the Eqs evenly between the two ports. |
| * (dev->caps.num_comp_vectors / dev->caps.num_ports) |
| * refers to the number of Eqs per port |
| * (i.e eqs_per_port). Theoretically, we would like to |
| * write something like (i + 1) % eqs_per_port == 0. |
| * However, since there's an asynchronous Eq, we have |
| * to skip over it by comparing this condition to |
| * !!((i + 1) > MLX4_EQ_ASYNC). |
| */ |
| if ((dev->caps.num_comp_vectors > dev->caps.num_ports) && |
| ((i + 1) % |
| (dev->caps.num_comp_vectors / dev->caps.num_ports)) == |
| !!((i + 1) > MLX4_EQ_ASYNC)) |
| /* If dev->caps.num_comp_vectors < dev->caps.num_ports, |
| * everything is shared anyway. |
| */ |
| port++; |
| } |
| |
| dev->flags |= MLX4_FLAG_MSI_X; |
| |
| kfree(entries); |
| return; |
| } |
| |
| no_msi: |
| dev->caps.num_comp_vectors = 1; |
| |
| BUG_ON(MLX4_EQ_ASYNC >= 2); |
| for (i = 0; i < 2; ++i) { |
| priv->eq_table.eq[i].irq = dev->persist->pdev->irq; |
| if (i != MLX4_EQ_ASYNC) { |
| bitmap_fill(priv->eq_table.eq[i].actv_ports.ports, |
| dev->caps.num_ports); |
| } |
| } |
| } |
| |
| static int mlx4_init_port_info(struct mlx4_dev *dev, int port) |
| { |
| struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; |
| int err = 0; |
| |
| info->dev = dev; |
| info->port = port; |
| if (!mlx4_is_slave(dev)) { |
| mlx4_init_mac_table(dev, &info->mac_table); |
| mlx4_init_vlan_table(dev, &info->vlan_table); |
| mlx4_init_roce_gid_table(dev, &info->gid_table); |
| info->base_qpn = mlx4_get_base_qpn(dev, port); |
| } |
| |
| sprintf(info->dev_name, "mlx4_port%d", port); |
| info->port_attr.attr.name = info->dev_name; |
| if (mlx4_is_mfunc(dev)) |
| info->port_attr.attr.mode = S_IRUGO; |
| else { |
| info->port_attr.attr.mode = S_IRUGO | S_IWUSR; |
| info->port_attr.store = set_port_type; |
| } |
| info->port_attr.show = show_port_type; |
| sysfs_attr_init(&info->port_attr.attr); |
| |
| err = device_create_file(&dev->persist->pdev->dev, &info->port_attr); |
| if (err) { |
| mlx4_err(dev, "Failed to create file for port %d\n", port); |
| info->port = -1; |
| } |
| |
| sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port); |
| info->port_mtu_attr.attr.name = info->dev_mtu_name; |
| if (mlx4_is_mfunc(dev)) |
| info->port_mtu_attr.attr.mode = S_IRUGO; |
| else { |
| info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR; |
| info->port_mtu_attr.store = set_port_ib_mtu; |
| } |
| info->port_mtu_attr.show = show_port_ib_mtu; |
| sysfs_attr_init(&info->port_mtu_attr.attr); |
| |
| err = device_create_file(&dev->persist->pdev->dev, |
| &info->port_mtu_attr); |
| if (err) { |
| mlx4_err(dev, "Failed to create mtu file for port %d\n", port); |
| device_remove_file(&info->dev->persist->pdev->dev, |
| &info->port_attr); |
| info->port = -1; |
| } |
| |
| return err; |
| } |
| |
| static void mlx4_cleanup_port_info(struct mlx4_port_info *info) |
| { |
| if (info->port < 0) |
| return; |
| |
| device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr); |
| device_remove_file(&info->dev->persist->pdev->dev, |
| &info->port_mtu_attr); |
| #ifdef CONFIG_RFS_ACCEL |
| free_irq_cpu_rmap(info->rmap); |
| info->rmap = NULL; |
| #endif |
| } |
| |
| static int mlx4_init_steering(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int num_entries = dev->caps.num_ports; |
| int i, j; |
| |
| priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL); |
| if (!priv->steer) |
| return -ENOMEM; |
| |
| for (i = 0; i < num_entries; i++) |
| for (j = 0; j < MLX4_NUM_STEERS; j++) { |
| INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]); |
| INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]); |
| } |
| return 0; |
| } |
| |
| static void mlx4_clear_steering(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_steer_index *entry, *tmp_entry; |
| struct mlx4_promisc_qp *pqp, *tmp_pqp; |
| int num_entries = dev->caps.num_ports; |
| int i, j; |
| |
| for (i = 0; i < num_entries; i++) { |
| for (j = 0; j < MLX4_NUM_STEERS; j++) { |
| list_for_each_entry_safe(pqp, tmp_pqp, |
| &priv->steer[i].promisc_qps[j], |
| list) { |
| list_del(&pqp->list); |
| kfree(pqp); |
| } |
| list_for_each_entry_safe(entry, tmp_entry, |
| &priv->steer[i].steer_entries[j], |
| list) { |
| list_del(&entry->list); |
| list_for_each_entry_safe(pqp, tmp_pqp, |
| &entry->duplicates, |
| list) { |
| list_del(&pqp->list); |
| kfree(pqp); |
| } |
| kfree(entry); |
| } |
| } |
| } |
| kfree(priv->steer); |
| } |
| |
| static int extended_func_num(struct pci_dev *pdev) |
| { |
| return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn); |
| } |
| |
| #define MLX4_OWNER_BASE 0x8069c |
| #define MLX4_OWNER_SIZE 4 |
| |
| static int mlx4_get_ownership(struct mlx4_dev *dev) |
| { |
| void __iomem *owner; |
| u32 ret; |
| |
| if (pci_channel_offline(dev->persist->pdev)) |
| return -EIO; |
| |
| owner = ioremap(pci_resource_start(dev->persist->pdev, 0) + |
| MLX4_OWNER_BASE, |
| MLX4_OWNER_SIZE); |
| if (!owner) { |
| mlx4_err(dev, "Failed to obtain ownership bit\n"); |
| return -ENOMEM; |
| } |
| |
| ret = readl(owner); |
| iounmap(owner); |
| return (int) !!ret; |
| } |
| |
| static void mlx4_free_ownership(struct mlx4_dev *dev) |
| { |
| void __iomem *owner; |
| |
| if (pci_channel_offline(dev->persist->pdev)) |
| return; |
| |
| owner = ioremap(pci_resource_start(dev->persist->pdev, 0) + |
| MLX4_OWNER_BASE, |
| MLX4_OWNER_SIZE); |
| if (!owner) { |
| mlx4_err(dev, "Failed to obtain ownership bit\n"); |
| return; |
| } |
| writel(0, owner); |
| msleep(1000); |
| iounmap(owner); |
| } |
| |
| #define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\ |
| !!((flags) & MLX4_FLAG_MASTER)) |
| |
| static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev, |
| u8 total_vfs, int existing_vfs, int reset_flow) |
| { |
| u64 dev_flags = dev->flags; |
| int err = 0; |
| int fw_enabled_sriov_vfs = min(pci_sriov_get_totalvfs(pdev), |
| MLX4_MAX_NUM_VF); |
| |
| if (reset_flow) { |
| dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs), |
| GFP_KERNEL); |
| if (!dev->dev_vfs) |
| goto free_mem; |
| return dev_flags; |
| } |
| |
| atomic_inc(&pf_loading); |
| if (dev->flags & MLX4_FLAG_SRIOV) { |
| if (existing_vfs != total_vfs) { |
| mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n", |
| existing_vfs, total_vfs); |
| total_vfs = existing_vfs; |
| } |
| } |
| |
| dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL); |
| if (NULL == dev->dev_vfs) { |
| mlx4_err(dev, "Failed to allocate memory for VFs\n"); |
| goto disable_sriov; |
| } |
| |
| if (!(dev->flags & MLX4_FLAG_SRIOV)) { |
| if (total_vfs > fw_enabled_sriov_vfs) { |
| mlx4_err(dev, "requested vfs (%d) > available vfs (%d). Continuing without SR_IOV\n", |
| total_vfs, fw_enabled_sriov_vfs); |
| err = -ENOMEM; |
| goto disable_sriov; |
| } |
| mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs); |
| err = pci_enable_sriov(pdev, total_vfs); |
| } |
| if (err) { |
| mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n", |
| err); |
| goto disable_sriov; |
| } else { |
| mlx4_warn(dev, "Running in master mode\n"); |
| dev_flags |= MLX4_FLAG_SRIOV | |
| MLX4_FLAG_MASTER; |
| dev_flags &= ~MLX4_FLAG_SLAVE; |
| dev->persist->num_vfs = total_vfs; |
| } |
| return dev_flags; |
| |
| disable_sriov: |
| atomic_dec(&pf_loading); |
| free_mem: |
| dev->persist->num_vfs = 0; |
| kfree(dev->dev_vfs); |
| dev->dev_vfs = NULL; |
| return dev_flags & ~MLX4_FLAG_MASTER; |
| } |
| |
| enum { |
| MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1, |
| }; |
| |
| static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap, |
| int *nvfs) |
| { |
| int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2]; |
| /* Checking for 64 VFs as a limitation of CX2 */ |
| if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) && |
| requested_vfs >= 64) { |
| mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n", |
| requested_vfs); |
| return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64; |
| } |
| return 0; |
| } |
| |
| static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data, |
| int total_vfs, int *nvfs, struct mlx4_priv *priv, |
| int reset_flow) |
| { |
| struct mlx4_dev *dev; |
| unsigned sum = 0; |
| int err; |
| int port; |
| int i; |
| struct mlx4_dev_cap *dev_cap = NULL; |
| int existing_vfs = 0; |
| |
| dev = &priv->dev; |
| |
| INIT_LIST_HEAD(&priv->ctx_list); |
| spin_lock_init(&priv->ctx_lock); |
| |
| mutex_init(&priv->port_mutex); |
| mutex_init(&priv->bond_mutex); |
| |
| INIT_LIST_HEAD(&priv->pgdir_list); |
| mutex_init(&priv->pgdir_mutex); |
| |
| INIT_LIST_HEAD(&priv->bf_list); |
| mutex_init(&priv->bf_mutex); |
| |
| dev->rev_id = pdev->revision; |
| dev->numa_node = dev_to_node(&pdev->dev); |
| |
| /* Detect if this device is a virtual function */ |
| if (pci_dev_data & MLX4_PCI_DEV_IS_VF) { |
| mlx4_warn(dev, "Detected virtual function - running in slave mode\n"); |
| dev->flags |= MLX4_FLAG_SLAVE; |
| } else { |
| /* We reset the device and enable SRIOV only for physical |
| * devices. Try to claim ownership on the device; |
| * if already taken, skip -- do not allow multiple PFs */ |
| err = mlx4_get_ownership(dev); |
| if (err) { |
| if (err < 0) |
| return err; |
| else { |
| mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n"); |
| return -EINVAL; |
| } |
| } |
| |
| atomic_set(&priv->opreq_count, 0); |
| INIT_WORK(&priv->opreq_task, mlx4_opreq_action); |
| |
| /* |
| * 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_sriov; |
| } |
| |
| if (total_vfs) { |
| dev->flags = MLX4_FLAG_MASTER; |
| existing_vfs = pci_num_vf(pdev); |
| if (existing_vfs) |
| dev->flags |= MLX4_FLAG_SRIOV; |
| dev->persist->num_vfs = total_vfs; |
| } |
| } |
| |
| /* on load remove any previous indication of internal error, |
| * device is up. |
| */ |
| dev->persist->state = MLX4_DEVICE_STATE_UP; |
| |
| slave_start: |
| err = mlx4_cmd_init(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to init command interface, aborting\n"); |
| goto err_sriov; |
| } |
| |
| /* In slave functions, the communication channel must be initialized |
| * before posting commands. Also, init num_slaves before calling |
| * mlx4_init_hca */ |
| if (mlx4_is_mfunc(dev)) { |
| if (mlx4_is_master(dev)) { |
| dev->num_slaves = MLX4_MAX_NUM_SLAVES; |
| |
| } else { |
| dev->num_slaves = 0; |
| err = mlx4_multi_func_init(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n"); |
| goto err_cmd; |
| } |
| } |
| } |
| |
| err = mlx4_init_fw(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to init fw, aborting.\n"); |
| goto err_mfunc; |
| } |
| |
| if (mlx4_is_master(dev)) { |
| /* when we hit the goto slave_start below, dev_cap already initialized */ |
| if (!dev_cap) { |
| dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL); |
| |
| if (!dev_cap) { |
| err = -ENOMEM; |
| goto err_fw; |
| } |
| |
| err = mlx4_QUERY_DEV_CAP(dev, dev_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); |
| goto err_fw; |
| } |
| |
| if (mlx4_check_dev_cap(dev, dev_cap, nvfs)) |
| goto err_fw; |
| |
| if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) { |
| u64 dev_flags = mlx4_enable_sriov(dev, pdev, |
| total_vfs, |
| existing_vfs, |
| reset_flow); |
| |
| mlx4_close_fw(dev); |
| mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); |
| dev->flags = dev_flags; |
| if (!SRIOV_VALID_STATE(dev->flags)) { |
| mlx4_err(dev, "Invalid SRIOV state\n"); |
| goto err_sriov; |
| } |
| err = mlx4_reset(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to reset HCA, aborting.\n"); |
| goto err_sriov; |
| } |
| goto slave_start; |
| } |
| } else { |
| /* Legacy mode FW requires SRIOV to be enabled before |
| * doing QUERY_DEV_CAP, since max_eq's value is different if |
| * SRIOV is enabled. |
| */ |
| memset(dev_cap, 0, sizeof(*dev_cap)); |
| err = mlx4_QUERY_DEV_CAP(dev, dev_cap); |
| if (err) { |
| mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n"); |
| goto err_fw; |
| } |
| |
| if (mlx4_check_dev_cap(dev, dev_cap, nvfs)) |
| goto err_fw; |
| } |
| } |
| |
| err = mlx4_init_hca(dev); |
| if (err) { |
| if (err == -EACCES) { |
| /* Not primary Physical function |
| * Running in slave mode */ |
| mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); |
| /* We're not a PF */ |
| if (dev->flags & MLX4_FLAG_SRIOV) { |
| if (!existing_vfs) |
| pci_disable_sriov(pdev); |
| if (mlx4_is_master(dev) && !reset_flow) |
| atomic_dec(&pf_loading); |
| dev->flags &= ~MLX4_FLAG_SRIOV; |
| } |
| if (!mlx4_is_slave(dev)) |
| mlx4_free_ownership(dev); |
| dev->flags |= MLX4_FLAG_SLAVE; |
| dev->flags &= ~MLX4_FLAG_MASTER; |
| goto slave_start; |
| } else |
| goto err_fw; |
| } |
| |
| if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) { |
| u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs, |
| existing_vfs, reset_flow); |
| |
| if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) { |
| mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR); |
| dev->flags = dev_flags; |
| err = mlx4_cmd_init(dev); |
| if (err) { |
| /* Only VHCR is cleaned up, so could still |
| * send FW commands |
| */ |
| mlx4_err(dev, "Failed to init VHCR command interface, aborting\n"); |
| goto err_close; |
| } |
| } else { |
| dev->flags = dev_flags; |
| } |
| |
| if (!SRIOV_VALID_STATE(dev->flags)) { |
| mlx4_err(dev, "Invalid SRIOV state\n"); |
| goto err_close; |
| } |
| } |
| |
| /* check if the device is functioning at its maximum possible speed. |
| * No return code for this call, just warn the user in case of PCI |
| * express device capabilities are under-satisfied by the bus. |
| */ |
| if (!mlx4_is_slave(dev)) |
| mlx4_check_pcie_caps(dev); |
| |
| /* In master functions, the communication channel must be initialized |
| * after obtaining its address from fw */ |
| if (mlx4_is_master(dev)) { |
| if (dev->caps.num_ports < 2 && |
| num_vfs_argc > 1) { |
| err = -EINVAL; |
| mlx4_err(dev, |
| "Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n", |
| dev->caps.num_ports); |
| goto err_close; |
| } |
| memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs)); |
| |
| for (i = 0; |
| i < sizeof(dev->persist->nvfs)/ |
| sizeof(dev->persist->nvfs[0]); i++) { |
| unsigned j; |
| |
| for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) { |
| dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1; |
| dev->dev_vfs[sum].n_ports = i < 2 ? 1 : |
| dev->caps.num_ports; |
| } |
| } |
| |
| /* In master functions, the communication channel |
| * must be initialized after obtaining its address from fw |
| */ |
| err = mlx4_multi_func_init(dev); |
| if (err) { |
| mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n"); |
| goto err_close; |
| } |
| } |
| |
| err = mlx4_alloc_eq_table(dev); |
| if (err) |
| goto err_master_mfunc; |
| |
| bitmap_zero(priv->msix_ctl.pool_bm, MAX_MSIX); |
| mutex_init(&priv->msix_ctl.pool_lock); |
| |
| mlx4_enable_msi_x(dev); |
| if ((mlx4_is_mfunc(dev)) && |
| !(dev->flags & MLX4_FLAG_MSI_X)) { |
| err = -ENOSYS; |
| mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n"); |
| goto err_free_eq; |
| } |
| |
| if (!mlx4_is_slave(dev)) { |
| err = mlx4_init_steering(dev); |
| if (err) |
| goto err_disable_msix; |
| } |
| |
| err = mlx4_setup_hca(dev); |
| if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) && |
| !mlx4_is_mfunc(dev)) { |
| dev->flags &= ~MLX4_FLAG_MSI_X; |
| dev->caps.num_comp_vectors = 1; |
| pci_disable_msix(pdev); |
| err = mlx4_setup_hca(dev); |
| } |
| |
| if (err) |
| goto err_steer; |
| |
| mlx4_init_quotas(dev); |
| /* When PF resources are ready arm its comm channel to enable |
| * getting commands |
| */ |
| if (mlx4_is_master(dev)) { |
| err = mlx4_ARM_COMM_CHANNEL(dev); |
| if (err) { |
| mlx4_err(dev, " Failed to arm comm channel eq: %x\n", |
| err); |
| goto err_steer; |
| } |
| } |
| |
| for (port = 1; port <= dev->caps.num_ports; port++) { |
| err = mlx4_init_port_info(dev, port); |
| if (err) |
| goto err_port; |
| } |
| |
| priv->v2p.port1 = 1; |
| priv->v2p.port2 = 2; |
| |
| err = mlx4_register_device(dev); |
| if (err) |
| goto err_port; |
| |
| mlx4_request_modules(dev); |
| |
| mlx4_sense_init(dev); |
| mlx4_start_sense(dev); |
| |
| priv->removed = 0; |
| |
| if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow) |
| atomic_dec(&pf_loading); |
| |
| kfree(dev_cap); |
| return 0; |
| |
| err_port: |
| for (--port; port >= 1; --port) |
| mlx4_cleanup_port_info(&priv->port[port]); |
| |
| mlx4_cleanup_default_counters(dev); |
| if (!mlx4_is_slave(dev)) |
| mlx4_cleanup_counters_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_mcg_table(dev); |
| mlx4_cleanup_mr_table(dev); |
| mlx4_cleanup_xrcd_table(dev); |
| mlx4_cleanup_pd_table(dev); |
| mlx4_cleanup_uar_table(dev); |
| |
| err_steer: |
| if (!mlx4_is_slave(dev)) |
| mlx4_clear_steering(dev); |
| |
| err_disable_msix: |
| if (dev->flags & MLX4_FLAG_MSI_X) |
| pci_disable_msix(pdev); |
| |
| err_free_eq: |
| mlx4_free_eq_table(dev); |
| |
| err_master_mfunc: |
| if (mlx4_is_master(dev)) { |
| mlx4_free_resource_tracker(dev, RES_TR_FREE_STRUCTS_ONLY); |
| mlx4_multi_func_cleanup(dev); |
| } |
| |
| if (mlx4_is_slave(dev)) { |
| kfree(dev->caps.qp0_qkey); |
| kfree(dev->caps.qp0_tunnel); |
| kfree(dev->caps.qp0_proxy); |
| kfree(dev->caps.qp1_tunnel); |
| kfree(dev->caps.qp1_proxy); |
| } |
| |
| err_close: |
| mlx4_close_hca(dev); |
| |
| err_fw: |
| mlx4_close_fw(dev); |
| |
| err_mfunc: |
| if (mlx4_is_slave(dev)) |
| mlx4_multi_func_cleanup(dev); |
| |
| err_cmd: |
| mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); |
| |
| err_sriov: |
| if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) { |
| pci_disable_sriov(pdev); |
| dev->flags &= ~MLX4_FLAG_SRIOV; |
| } |
| |
| if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow) |
| atomic_dec(&pf_loading); |
| |
| kfree(priv->dev.dev_vfs); |
| |
| if (!mlx4_is_slave(dev)) |
| mlx4_free_ownership(dev); |
| |
| kfree(dev_cap); |
| return err; |
| } |
| |
| static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data, |
| struct mlx4_priv *priv) |
| { |
| int err; |
| int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; |
| int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0}; |
| const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = { |
| {2, 0, 0}, {0, 1, 2}, {0, 1, 2} }; |
| unsigned total_vfs = 0; |
| unsigned int i; |
| |
| pr_info(DRV_NAME ": 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; |
| } |
| |
| /* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS |
| * per port, we must limit the number of VFs to 63 (since their are |
| * 128 MACs) |
| */ |
| for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc; |
| total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) { |
| nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i]; |
| if (nvfs[i] < 0) { |
| dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n"); |
| err = -EINVAL; |
| goto err_disable_pdev; |
| } |
| } |
| for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc; |
| i++) { |
| prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i]; |
| if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) { |
| dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n"); |
| err = -EINVAL; |
| goto err_disable_pdev; |
| } |
| } |
| if (total_vfs > MLX4_MAX_NUM_VF) { |
| dev_err(&pdev->dev, |
| "Requested more VF's (%d) than allowed by hw (%d)\n", |
| total_vfs, MLX4_MAX_NUM_VF); |
| err = -EINVAL; |
| goto err_disable_pdev; |
| } |
| |
| for (i = 0; i < MLX4_MAX_PORTS; i++) { |
| if (nvfs[i] + nvfs[2] > MLX4_MAX_NUM_VF_P_PORT) { |
| dev_err(&pdev->dev, |
| "Requested more VF's (%d) for port (%d) than allowed by driver (%d)\n", |
| nvfs[i] + nvfs[2], i + 1, |
| MLX4_MAX_NUM_VF_P_PORT); |
| err = -EINVAL; |
| goto err_disable_pdev; |
| } |
| } |
| |
| /* Check for BARs. */ |
| if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) && |
| !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
| dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n", |
| pci_dev_data, pci_resource_flags(pdev, 0)); |
| 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_regions(pdev, DRV_NAME); |
| if (err) { |
| dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n"); |
| goto err_disable_pdev; |
| } |
| |
| pci_set_master(pdev); |
| |
| err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
| if (err) { |
| dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n"); |
| err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (err) { |
| dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n"); |
| goto err_release_regions; |
| } |
| } |
| err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
| 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_BIT_MASK(32)); |
| if (err) { |
| dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n"); |
| goto err_release_regions; |
| } |
| } |
| |
| /* Allow large DMA segments, up to the firmware limit of 1 GB */ |
| dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024); |
| /* Detect if this device is a virtual function */ |
| if (pci_dev_data & MLX4_PCI_DEV_IS_VF) { |
| /* When acting as pf, we normally skip vfs unless explicitly |
| * requested to probe them. |
| */ |
| if (total_vfs) { |
| unsigned vfs_offset = 0; |
| |
| for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && |
| vfs_offset + nvfs[i] < extended_func_num(pdev); |
| vfs_offset += nvfs[i], i++) |
| ; |
| if (i == sizeof(nvfs)/sizeof(nvfs[0])) { |
| err = -ENODEV; |
| goto err_release_regions; |
| } |
| if ((extended_func_num(pdev) - vfs_offset) |
| > prb_vf[i]) { |
| dev_warn(&pdev->dev, "Skipping virtual function:%d\n", |
| extended_func_num(pdev)); |
| err = -ENODEV; |
| goto err_release_regions; |
| } |
| } |
| } |
| |
| err = mlx4_catas_init(&priv->dev); |
| if (err) |
| goto err_release_regions; |
| |
| err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0); |
| if (err) |
| goto err_catas; |
| |
| return 0; |
| |
| err_catas: |
| mlx4_catas_end(&priv->dev); |
| |
| err_release_regions: |
| pci_release_regions(pdev); |
| |
| err_disable_pdev: |
| pci_disable_device(pdev); |
| pci_set_drvdata(pdev, NULL); |
| return err; |
| } |
| |
| static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| struct mlx4_priv *priv; |
| struct mlx4_dev *dev; |
| int ret; |
| |
| printk_once(KERN_INFO "%s", mlx4_version); |
| |
| priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
| if (!priv) |
| return -ENOMEM; |
| |
| dev = &priv->dev; |
| dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL); |
| if (!dev->persist) { |
| kfree(priv); |
| return -ENOMEM; |
| } |
| dev->persist->pdev = pdev; |
| dev->persist->dev = dev; |
| pci_set_drvdata(pdev, dev->persist); |
| priv->pci_dev_data = id->driver_data; |
| mutex_init(&dev->persist->device_state_mutex); |
| mutex_init(&dev->persist->interface_state_mutex); |
| |
| ret = __mlx4_init_one(pdev, id->driver_data, priv); |
| if (ret) { |
| kfree(dev->persist); |
| kfree(priv); |
| } else { |
| pci_save_state(pdev); |
| } |
| |
| return ret; |
| } |
| |
| static void mlx4_clean_dev(struct mlx4_dev *dev) |
| { |
| struct mlx4_dev_persistent *persist = dev->persist; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| unsigned long flags = (dev->flags & RESET_PERSIST_MASK_FLAGS); |
| |
| memset(priv, 0, sizeof(*priv)); |
| priv->dev.persist = persist; |
| priv->dev.flags = flags; |
| } |
| |
| static void mlx4_unload_one(struct pci_dev *pdev) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| struct mlx4_dev *dev = persist->dev; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int pci_dev_data; |
| int p, i; |
| |
| if (priv->removed) |
| return; |
| |
| /* saving current ports type for further use */ |
| for (i = 0; i < dev->caps.num_ports; i++) { |
| dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1]; |
| dev->persist->curr_port_poss_type[i] = dev->caps. |
| possible_type[i + 1]; |
| } |
| |
| pci_dev_data = priv->pci_dev_data; |
| |
| mlx4_stop_sense(dev); |
| mlx4_unregister_device(dev); |
| |
| for (p = 1; p <= dev->caps.num_ports; p++) { |
| mlx4_cleanup_port_info(&priv->port[p]); |
| mlx4_CLOSE_PORT(dev, p); |
| } |
| |
| if (mlx4_is_master(dev)) |
| mlx4_free_resource_tracker(dev, |
| RES_TR_FREE_SLAVES_ONLY); |
| |
| mlx4_cleanup_default_counters(dev); |
| if (!mlx4_is_slave(dev)) |
| mlx4_cleanup_counters_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_mcg_table(dev); |
| mlx4_cleanup_mr_table(dev); |
| mlx4_cleanup_xrcd_table(dev); |
| mlx4_cleanup_pd_table(dev); |
| |
| if (mlx4_is_master(dev)) |
| mlx4_free_resource_tracker(dev, |
| RES_TR_FREE_STRUCTS_ONLY); |
| |
| iounmap(priv->kar); |
| mlx4_uar_free(dev, &priv->driver_uar); |
| mlx4_cleanup_uar_table(dev); |
| if (!mlx4_is_slave(dev)) |
| mlx4_clear_steering(dev); |
| mlx4_free_eq_table(dev); |
| if (mlx4_is_master(dev)) |
| mlx4_multi_func_cleanup(dev); |
| mlx4_close_hca(dev); |
| mlx4_close_fw(dev); |
| if (mlx4_is_slave(dev)) |
| mlx4_multi_func_cleanup(dev); |
| mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL); |
| |
| if (dev->flags & MLX4_FLAG_MSI_X) |
| pci_disable_msix(pdev); |
| |
| if (!mlx4_is_slave(dev)) |
| mlx4_free_ownership(dev); |
| |
| kfree(dev->caps.qp0_qkey); |
| kfree(dev->caps.qp0_tunnel); |
| kfree(dev->caps.qp0_proxy); |
| kfree(dev->caps.qp1_tunnel); |
| kfree(dev->caps.qp1_proxy); |
| kfree(dev->dev_vfs); |
| |
| mlx4_clean_dev(dev); |
| priv->pci_dev_data = pci_dev_data; |
| priv->removed = 1; |
| } |
| |
| static void mlx4_remove_one(struct pci_dev *pdev) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| struct mlx4_dev *dev = persist->dev; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int active_vfs = 0; |
| |
| mutex_lock(&persist->interface_state_mutex); |
| persist->interface_state |= MLX4_INTERFACE_STATE_DELETION; |
| mutex_unlock(&persist->interface_state_mutex); |
| |
| /* Disabling SR-IOV is not allowed while there are active vf's */ |
| if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) { |
| active_vfs = mlx4_how_many_lives_vf(dev); |
| if (active_vfs) { |
| pr_warn("Removing PF when there are active VF's !!\n"); |
| pr_warn("Will not disable SR-IOV.\n"); |
| } |
| } |
| |
| /* device marked to be under deletion running now without the lock |
| * letting other tasks to be terminated |
| */ |
| if (persist->interface_state & MLX4_INTERFACE_STATE_UP) |
| mlx4_unload_one(pdev); |
| else |
| mlx4_info(dev, "%s: interface is down\n", __func__); |
| mlx4_catas_end(dev); |
| if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) { |
| mlx4_warn(dev, "Disabling SR-IOV\n"); |
| pci_disable_sriov(pdev); |
| } |
| |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| kfree(dev->persist); |
| kfree(priv); |
| pci_set_drvdata(pdev, NULL); |
| } |
| |
| static int restore_current_port_types(struct mlx4_dev *dev, |
| enum mlx4_port_type *types, |
| enum mlx4_port_type *poss_types) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int err, i; |
| |
| mlx4_stop_sense(dev); |
| |
| mutex_lock(&priv->port_mutex); |
| for (i = 0; i < dev->caps.num_ports; i++) |
| dev->caps.possible_type[i + 1] = poss_types[i]; |
| err = mlx4_change_port_types(dev, types); |
| mlx4_start_sense(dev); |
| mutex_unlock(&priv->port_mutex); |
| |
| return err; |
| } |
| |
| int mlx4_restart_one(struct pci_dev *pdev) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| struct mlx4_dev *dev = persist->dev; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; |
| int pci_dev_data, err, total_vfs; |
| |
| pci_dev_data = priv->pci_dev_data; |
| total_vfs = dev->persist->num_vfs; |
| memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); |
| |
| mlx4_unload_one(pdev); |
| err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1); |
| if (err) { |
| mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n", |
| __func__, pci_name(pdev), err); |
| return err; |
| } |
| |
| err = restore_current_port_types(dev, dev->persist->curr_port_type, |
| dev->persist->curr_port_poss_type); |
| if (err) |
| mlx4_err(dev, "could not restore original port types (%d)\n", |
| err); |
| |
| return err; |
| } |
| |
| static const struct pci_device_id mlx4_pci_table[] = { |
| /* MT25408 "Hermon" SDR */ |
| { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" DDR */ |
| { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" QDR */ |
| { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" DDR PCIe gen2 */ |
| { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" QDR PCIe gen2 */ |
| { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" EN 10GigE */ |
| { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25408 "Hermon" EN 10GigE PCIe gen2 */ |
| { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25458 ConnectX EN 10GBASE-T 10GigE */ |
| { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */ |
| { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT26468 ConnectX EN 10GigE PCIe gen2*/ |
| { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */ |
| { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT26478 ConnectX2 40GigE PCIe gen2 */ |
| { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT }, |
| /* MT25400 Family [ConnectX-2 Virtual Function] */ |
| { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF }, |
| /* MT27500 Family [ConnectX-3] */ |
| { PCI_VDEVICE(MELLANOX, 0x1003), 0 }, |
| /* MT27500 Family [ConnectX-3 Virtual Function] */ |
| { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF }, |
| { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */ |
| { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */ |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, mlx4_pci_table); |
| |
| static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev, |
| pci_channel_state_t state) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| |
| mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n"); |
| mlx4_enter_error_state(persist); |
| |
| mutex_lock(&persist->interface_state_mutex); |
| if (persist->interface_state & MLX4_INTERFACE_STATE_UP) |
| mlx4_unload_one(pdev); |
| |
| mutex_unlock(&persist->interface_state_mutex); |
| if (state == pci_channel_io_perm_failure) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_disable_device(pdev); |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| struct mlx4_dev *dev = persist->dev; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int ret; |
| int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; |
| int total_vfs; |
| |
| mlx4_err(dev, "mlx4_pci_slot_reset was called\n"); |
| ret = pci_enable_device(pdev); |
| if (ret) { |
| mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| pci_set_master(pdev); |
| pci_restore_state(pdev); |
| pci_save_state(pdev); |
| |
| total_vfs = dev->persist->num_vfs; |
| memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); |
| |
| mutex_lock(&persist->interface_state_mutex); |
| if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) { |
| ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs, |
| priv, 1); |
| if (ret) { |
| mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n", |
| __func__, ret); |
| goto end; |
| } |
| |
| ret = restore_current_port_types(dev, dev->persist-> |
| curr_port_type, dev->persist-> |
| curr_port_poss_type); |
| if (ret) |
| mlx4_err(dev, "could not restore original port types (%d)\n", ret); |
| } |
| end: |
| mutex_unlock(&persist->interface_state_mutex); |
| |
| return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| static void mlx4_shutdown(struct pci_dev *pdev) |
| { |
| struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); |
| |
| mlx4_info(persist->dev, "mlx4_shutdown was called\n"); |
| mutex_lock(&persist->interface_state_mutex); |
| if (persist->interface_state & MLX4_INTERFACE_STATE_UP) |
| mlx4_unload_one(pdev); |
| mutex_unlock(&persist->interface_state_mutex); |
| } |
| |
| static const struct pci_error_handlers mlx4_err_handler = { |
| .error_detected = mlx4_pci_err_detected, |
| .slot_reset = mlx4_pci_slot_reset, |
| }; |
| |
| static struct pci_driver mlx4_driver = { |
| .name = DRV_NAME, |
| .id_table = mlx4_pci_table, |
| .probe = mlx4_init_one, |
| .shutdown = mlx4_shutdown, |
| .remove = mlx4_remove_one, |
| .err_handler = &mlx4_err_handler, |
| }; |
| |
| static int __init mlx4_verify_params(void) |
| { |
| if ((log_num_mac < 0) || (log_num_mac > 7)) { |
| pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac); |
| return -1; |
| } |
| |
| if (log_num_vlan != 0) |
| pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n", |
| MLX4_LOG_NUM_VLANS); |
| |
| if (use_prio != 0) |
| pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n"); |
| |
| if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) { |
| pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n", |
| log_mtts_per_seg); |
| return -1; |
| } |
| |
| /* Check if module param for ports type has legal combination */ |
| if (port_type_array[0] == false && port_type_array[1] == true) { |
| pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n"); |
| port_type_array[0] = true; |
| } |
| |
| if (mlx4_log_num_mgm_entry_size < -7 || |
| (mlx4_log_num_mgm_entry_size > 0 && |
| (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE || |
| mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) { |
| pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n", |
| mlx4_log_num_mgm_entry_size, |
| MLX4_MIN_MGM_LOG_ENTRY_SIZE, |
| MLX4_MAX_MGM_LOG_ENTRY_SIZE); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int __init mlx4_init(void) |
| { |
| int ret; |
| |
| if (mlx4_verify_params()) |
| return -EINVAL; |
| |
| |
| mlx4_wq = create_singlethread_workqueue("mlx4"); |
| if (!mlx4_wq) |
| return -ENOMEM; |
| |
| ret = pci_register_driver(&mlx4_driver); |
| if (ret < 0) |
| destroy_workqueue(mlx4_wq); |
| return ret < 0 ? ret : 0; |
| } |
| |
| static void __exit mlx4_cleanup(void) |
| { |
| pci_unregister_driver(&mlx4_driver); |
| destroy_workqueue(mlx4_wq); |
| } |
| |
| module_init(mlx4_init); |
| module_exit(mlx4_cleanup); |