| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Roland Dreier | 4966 | 21.88% | 14 | 4.61% |
| Jack Morgenstein | 2873 | 12.66% | 49 | 16.12% |
| Yevgeny Petrilin | 2428 | 10.70% | 27 | 8.88% |
| Matan Barak | 2228 | 9.81% | 14 | 4.61% |
| Yishai Hadas | 1410 | 6.21% | 11 | 3.62% |
| Or Gerlitz | 1098 | 4.84% | 13 | 4.28% |
| Majd Dibbiny | 1004 | 4.42% | 1 | 0.33% |
| Moshe Shemesh | 915 | 4.03% | 9 | 2.96% |
| Eran Ben Elisha | 896 | 3.95% | 6 | 1.97% |
| Moni Shoua | 757 | 3.33% | 4 | 1.32% |
| Jiri Pirko | 499 | 2.20% | 13 | 4.28% |
| Ido Shamay | 428 | 1.89% | 5 | 1.64% |
| Petr Pavlu | 325 | 1.43% | 3 | 0.99% |
| Amir Vadai | 289 | 1.27% | 10 | 3.29% |
| Eugenia Emantayev | 278 | 1.22% | 8 | 2.63% |
| Daniel Jurgens | 211 | 0.93% | 2 | 0.66% |
| Eli Cohen | 200 | 0.88% | 7 | 2.30% |
| Alex Vesker | 171 | 0.75% | 3 | 0.99% |
| Wei Yang | 138 | 0.61% | 3 | 0.99% |
| Huy Nguyen | 111 | 0.49% | 2 | 0.66% |
| Hadar Hen Zion | 110 | 0.48% | 6 | 1.97% |
| Kleber Sacilotto de Souza | 97 | 0.43% | 1 | 0.33% |
| Arnd Bergmann | 94 | 0.41% | 1 | 0.33% |
| Muhammad Mahajna | 89 | 0.39% | 1 | 0.33% |
| Shani Michaelli | 84 | 0.37% | 2 | 0.66% |
| Joe Perches | 81 | 0.36% | 5 | 1.64% |
| Björn Helgaas | 79 | 0.35% | 1 | 0.33% |
| Marcel Apfelbaum | 72 | 0.32% | 5 | 1.64% |
| Sean Hefty | 69 | 0.30% | 1 | 0.33% |
| Jakub Kiciński | 62 | 0.27% | 2 | 0.66% |
| Carol L Soto | 56 | 0.25% | 5 | 1.64% |
| Tariq Toukan | 55 | 0.24% | 5 | 1.64% |
| Michael S. Tsirkin | 51 | 0.22% | 1 | 0.33% |
| Vaibhav Gupta | 38 | 0.17% | 1 | 0.33% |
| Dotan Barak | 37 | 0.16% | 6 | 1.97% |
| Vladimir Sokolovsky | 36 | 0.16% | 1 | 0.33% |
| Inbar Karmy | 32 | 0.14% | 1 | 0.33% |
| Shay Drory | 32 | 0.14% | 1 | 0.33% |
| Maor Gottlieb | 30 | 0.13% | 1 | 0.33% |
| Eyal Perry | 24 | 0.11% | 4 | 1.32% |
| Shlomo Pongratz | 20 | 0.09% | 1 | 0.33% |
| Aviad Yehezkel | 17 | 0.07% | 1 | 0.33% |
| Yuval Shaia | 15 | 0.07% | 2 | 0.66% |
| Kamal Heib | 14 | 0.06% | 1 | 0.33% |
| Greg Kroah-Hartman | 10 | 0.04% | 1 | 0.33% |
| Christophe Jaillet | 10 | 0.04% | 2 | 0.66% |
| Rana Shahout | 10 | 0.04% | 1 | 0.33% |
| Noa Osherovich | 10 | 0.04% | 1 | 0.33% |
| Thadeu Lima de Souza Cascardo | 9 | 0.04% | 1 | 0.33% |
| Nicolas Morey-Chaisemartin | 8 | 0.04% | 1 | 0.33% |
| Colin Ian King | 8 | 0.04% | 3 | 0.99% |
| Dave Dillow | 8 | 0.04% | 1 | 0.33% |
| Erez Alfasi | 8 | 0.04% | 2 | 0.66% |
| Leon Romanovsky | 8 | 0.04% | 2 | 0.66% |
| Tarick Bedeir | 7 | 0.03% | 1 | 0.33% |
| Thomas Meyer | 7 | 0.03% | 1 | 0.33% |
| Alexander Gordeev | 7 | 0.03% | 1 | 0.33% |
| Slava Shwartsman | 6 | 0.03% | 1 | 0.33% |
| Stephen Hemminger | 6 | 0.03% | 2 | 0.66% |
| Benoit Taine | 6 | 0.03% | 1 | 0.33% |
| Tal Gilboa | 5 | 0.02% | 1 | 0.33% |
| Kees Cook | 5 | 0.02% | 1 | 0.33% |
| Jiapeng Chong | 5 | 0.02% | 1 | 0.33% |
| Yang Hongyang | 5 | 0.02% | 2 | 0.66% |
| Yan Burman | 4 | 0.02% | 1 | 0.33% |
| Gavin Shan | 4 | 0.02% | 1 | 0.33% |
| Sergei Shtylyov | 3 | 0.01% | 1 | 0.33% |
| Jason Gunthorpe | 3 | 0.01% | 1 | 0.33% |
| Eric Dumazet | 3 | 0.01% | 1 | 0.33% |
| Simon Horman | 2 | 0.01% | 1 | 0.33% |
| Rony Efraim | 2 | 0.01% | 2 | 0.66% |
| Wei Yongjun | 2 | 0.01% | 1 | 0.33% |
| Bhumika Goyal | 2 | 0.01% | 1 | 0.33% |
| Thomas Gleixner | 2 | 0.01% | 1 | 0.33% |
| Linus Torvalds (pre-git) | 2 | 0.01% | 1 | 0.33% |
| Saeed Mahameed | 1 | 0.00% | 1 | 0.33% |
| Tony Jones | 1 | 0.00% | 1 | 0.33% |
| Linus Torvalds | 1 | 0.00% | 1 | 0.33% |
| Rusty Russell | 1 | 0.00% | 1 | 0.33% |
| Zhu Yanjun | 1 | 0.00% | 1 | 0.33% |
| Total | 22701 | 304 |
/* * 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/kernel.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/etherdevice.h> #include <net/devlink.h> #include <uapi/rdma/mlx4-abi.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 by default */ 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, "0 - don't use MSI-X, 1 - use MSI-X, >1 - limit number of MSI-X irqs to msi_x"); #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"); static 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)"); static bool enable_4k_uar; module_param(enable_4k_uar, bool, 0444); MODULE_PARM_DESC(enable_4k_uar, "Enable using 4K UAR. Should not be enabled if have VFs which do not support 4K UARs (default: false)"); #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 "\n"; static const 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 segments */ }; static const 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(1); 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 " "(0-7) (default: 0)"); 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); static int mlx4_devlink_ierr_reset_get(struct devlink *devlink, u32 id, struct devlink_param_gset_ctx *ctx) { ctx->val.vbool = !!mlx4_internal_err_reset; return 0; } static int mlx4_devlink_ierr_reset_set(struct devlink *devlink, u32 id, struct devlink_param_gset_ctx *ctx, struct netlink_ext_ack *extack) { mlx4_internal_err_reset = ctx->val.vbool; return 0; } static int mlx4_devlink_crdump_snapshot_get(struct devlink *devlink, u32 id, struct devlink_param_gset_ctx *ctx) { struct mlx4_priv *priv = devlink_priv(devlink); struct mlx4_dev *dev = &priv->dev; ctx->val.vbool = dev->persist->crdump.snapshot_enable; return 0; } static int mlx4_devlink_crdump_snapshot_set(struct devlink *devlink, u32 id, struct devlink_param_gset_ctx *ctx, struct netlink_ext_ack *extack) { struct mlx4_priv *priv = devlink_priv(devlink); struct mlx4_dev *dev = &priv->dev; dev->persist->crdump.snapshot_enable = ctx->val.vbool; return 0; } static int mlx4_devlink_max_macs_validate(struct devlink *devlink, u32 id, union devlink_param_value val, struct netlink_ext_ack *extack) { u32 value = val.vu32; if (value < 1 || value > 128) return -ERANGE; if (!is_power_of_2(value)) { NL_SET_ERR_MSG_MOD(extack, "max_macs supported must be power of 2"); return -EINVAL; } return 0; } enum mlx4_devlink_param_id { MLX4_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, }; static const struct devlink_param mlx4_devlink_params[] = { DEVLINK_PARAM_GENERIC(INT_ERR_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME) | BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), mlx4_devlink_ierr_reset_get, mlx4_devlink_ierr_reset_set, NULL), DEVLINK_PARAM_GENERIC(MAX_MACS, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), NULL, NULL, mlx4_devlink_max_macs_validate), DEVLINK_PARAM_GENERIC(REGION_SNAPSHOT, BIT(DEVLINK_PARAM_CMODE_RUNTIME) | BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), mlx4_devlink_crdump_snapshot_get, mlx4_devlink_crdump_snapshot_set, NULL), DEVLINK_PARAM_DRIVER(MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, "enable_64b_cqe_eqe", DEVLINK_PARAM_TYPE_BOOL, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), NULL, NULL, NULL), DEVLINK_PARAM_DRIVER(MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, "enable_4k_uar", DEVLINK_PARAM_TYPE_BOOL, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), NULL, NULL, NULL), }; static void mlx4_devlink_set_params_init_values(struct devlink *devlink) { union devlink_param_value value; value.vbool = !!mlx4_internal_err_reset; devl_param_driverinit_value_set(devlink, DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, value); value.vu32 = 1UL << log_num_mac; devl_param_driverinit_value_set(devlink, DEVLINK_PARAM_GENERIC_ID_MAX_MACS, value); value.vbool = enable_64b_cqe_eqe; devl_param_driverinit_value_set(devlink, MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, value); value.vbool = enable_4k_uar; devl_param_driverinit_value_set(devlink, MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, value); value.vbool = false; devl_param_driverinit_value_set(devlink, DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, value); } static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) { /* The reserved_uars is calculated by system page size unit. * Therefore, adjustment is added when the uar page size is less * than the system page size */ dev->caps.reserved_uars = max_t(int, mlx4_get_num_reserved_uar(dev), dev_cap->reserved_uars / (1 << (PAGE_SHIFT - dev->uar_page_shift))); } 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 -EOPNOTSUPP; } } } 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 -EOPNOTSUPP; } } 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.max_tc_eth = port_cap->max_tc_eth; 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.map_clock_to_user = dev_cap->map_clock_to_user; 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 to enable resizing the 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; 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; dev->caps.wol_port[1] = dev_cap->wol_port[1]; dev->caps.wol_port[2] = dev_cap->wol_port[2]; dev->caps.health_buffer_addrs = dev_cap->health_buffer_addrs; /* Save uar page shift */ if (!mlx4_is_slave(dev)) { /* Virtual PCI function needs to determine UAR page size from * firmware. Only master PCI function can set the uar page size */ if (enable_4k_uar || !dev->persist->num_vfs) dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT; else dev->uar_page_shift = PAGE_SHIFT; mlx4_set_num_reserved_uars(dev, dev_cap); } 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; } /*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); void mlx4_handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl, struct _rule_hw *eth_header) { if (is_multicast_ether_addr(eth_header->eth.dst_mac) || is_broadcast_ether_addr(eth_header->eth.dst_mac)) { struct mlx4_net_trans_rule_hw_eth *eth = (struct mlx4_net_trans_rule_hw_eth *)eth_header; struct _rule_hw *next_rule = (struct _rule_hw *)(eth + 1); bool last_rule = next_rule->size == 0 && next_rule->id == 0 && next_rule->rsvd == 0; if (last_rule) ctrl->prio = cpu_to_be16(MLX4_DOMAIN_NIC); } } EXPORT_SYMBOL(mlx4_handle_eth_header_mcast_prio); 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 void mlx4_slave_destroy_special_qp_cap(struct mlx4_dev *dev) { kfree(dev->caps.spec_qps); dev->caps.spec_qps = NULL; } static int mlx4_slave_special_qp_cap(struct mlx4_dev *dev) { struct mlx4_func_cap *func_cap; struct mlx4_caps *caps = &dev->caps; int i, err = 0; func_cap = kzalloc(sizeof(*func_cap), GFP_KERNEL); caps->spec_qps = kcalloc(caps->num_ports, sizeof(*caps->spec_qps), GFP_KERNEL); if (!func_cap || !caps->spec_qps) { mlx4_err(dev, "Failed to allocate memory for special qps cap\n"); err = -ENOMEM; goto err_mem; } for (i = 1; i <= 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; } caps->spec_qps[i - 1] = func_cap->spec_qps; caps->port_mask[i] = caps->port_type[i]; caps->phys_port_id[i] = func_cap->phys_port_id; err = mlx4_get_slave_pkey_gid_tbl_len(dev, i, &caps->gid_table_len[i], &caps->pkey_table_len[i]); if (err) { mlx4_err(dev, "QUERY_PORT command failed for port %d, aborting (%d)\n", i, err); goto err_mem; } } err_mem: if (err) mlx4_slave_destroy_special_qp_cap(dev); kfree(func_cap); return err; } 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; hca_param = kzalloc(sizeof(*hca_param), GFP_KERNEL); func_cap = kzalloc(sizeof(*func_cap), GFP_KERNEL); dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL); if (!hca_param || !func_cap || !dev_cap) { mlx4_err(dev, "Failed to allocate memory for slave_cap\n"); err = -ENOMEM; goto free_mem; } err = mlx4_QUERY_HCA(dev, hca_param); if (err) { mlx4_err(dev, "QUERY_HCA command failed, aborting\n"); goto free_mem; } /* 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"); err = -EINVAL; goto free_mem; } dev->caps.hca_core_clock = hca_param->hca_core_clock; 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"); goto free_mem; } 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); err = -ENODEV; goto free_mem; } /* Set uar_page_shift for VF */ dev->uar_page_shift = hca_param->uar_page_sz + 12; /* Make sure the master uar page size is valid */ if (dev->uar_page_shift > PAGE_SHIFT) { mlx4_err(dev, "Invalid configuration: uar page size is larger than system page size\n"); err = -ENODEV; goto free_mem; } /* Set reserved_uars based on the uar_page_shift */ mlx4_set_num_reserved_uars(dev, dev_cap); /* Although uar page size in FW differs from system page size, * upper software layers (mlx4_ib, mlx4_en and part of mlx4_core) * still works with assumption that uar page size == system page size */ dev->caps.uar_page_size = PAGE_SIZE; err = mlx4_QUERY_FUNC_CAP(dev, 0, func_cap); if (err) { mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n", err); goto free_mem; } 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); err = -EINVAL; goto free_mem; } 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); err = -ENODEV; goto free_mem; } mlx4_replace_zero_macs(dev); err = mlx4_slave_special_qp_cap(dev); if (err) { mlx4_err(dev, "Set special QP caps failed. aborting\n"); goto free_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)); err = -ENOMEM; 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"); dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_USER_MAC_EN; mlx4_dbg(dev, "User MAC FW update 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; err_mem: if (err) mlx4_slave_destroy_special_qp_cap(dev); free_mem: kfree(hca_param); kfree(func_cap); kfree(dev_cap); return err; } /* * 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; } } 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 int __set_port_type(struct mlx4_port_info *info, enum mlx4_port_type port_type) { 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]; int i; int err = 0; if ((port_type & mdev->caps.supported_type[info->port]) != port_type) { mlx4_err(mdev, "Requested port type for port %d is not supported on this HCA\n", info->port); return -EOPNOTSUPP; } mlx4_stop_sense(mdev); mutex_lock(&priv->port_mutex); info->tmp_type = port_type; /* 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 = -EOPNOTSUPP; } } } 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); return err; } 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; enum mlx4_port_type port_type; static DEFINE_MUTEX(set_port_type_mutex); int err; mutex_lock(&set_port_type_mutex); if (!strcmp(buf, "ib\n")) { port_type = MLX4_PORT_TYPE_IB; } else if (!strcmp(buf, "eth\n")) { port_type = MLX4_PORT_TYPE_ETH; } else if (!strcmp(buf, "auto\n")) { port_type = MLX4_PORT_TYPE_AUTO; } else { mlx4_err(mdev, "%s is not supported port type\n", buf); err = -EINVAL; goto err_out; } err = __set_port_type(info, port_type); 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; } /* bond for multi-function device */ #define MAX_MF_BOND_ALLOWED_SLAVES 63 static int mlx4_mf_bond(struct mlx4_dev *dev) { int err = 0; int nvfs; struct mlx4_slaves_pport slaves_port1; struct mlx4_slaves_pport slaves_port2; slaves_port1 = mlx4_phys_to_slaves_pport(dev, 1); slaves_port2 = mlx4_phys_to_slaves_pport(dev, 2); /* only single port vfs are allowed */ if (bitmap_weight_and(slaves_port1.slaves, slaves_port2.slaves, dev->persist->num_vfs + 1) > 1) { mlx4_warn(dev, "HA mode unsupported for dual ported VFs\n"); return -EINVAL; } /* number of virtual functions is number of total functions minus one * physical function for each port. */ nvfs = bitmap_weight(slaves_port1.slaves, dev->persist->num_vfs + 1) + bitmap_weight(slaves_port2.slaves, dev->persist->num_vfs + 1) - 2; /* limit on maximum allowed VFs */ if (nvfs > MAX_MF_BOND_ALLOWED_SLAVES) { mlx4_warn(dev, "HA mode is not supported for %d VFs (max %d are allowed)\n", nvfs, MAX_MF_BOND_ALLOWED_SLAVES); return -EINVAL; } if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) { mlx4_warn(dev, "HA mode unsupported for NON DMFS steering\n"); return -EINVAL; } err = mlx4_bond_mac_table(dev); if (err) return err; err = mlx4_bond_vlan_table(dev); if (err) goto err1; err = mlx4_bond_fs_rules(dev); if (err) goto err2; return 0; err2: (void)mlx4_unbond_vlan_table(dev); err1: (void)mlx4_unbond_mac_table(dev); return err; } static int mlx4_mf_unbond(struct mlx4_dev *dev) { int ret, ret1; ret = mlx4_unbond_fs_rules(dev); if (ret) mlx4_warn(dev, "multifunction unbond for flow rules failed (%d)\n", ret); ret1 = mlx4_unbond_mac_table(dev); if (ret1) { mlx4_warn(dev, "multifunction unbond for MAC table failed (%d)\n", ret1); ret = ret1; } ret1 = mlx4_unbond_vlan_table(dev); if (ret1) { mlx4_warn(dev, "multifunction unbond for VLAN table failed (%d)\n", ret1); ret = ret1; } return ret; } static 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); if (ret) mlx4_err(dev, "Failed to bond device: %d\n", ret); if (!ret && mlx4_is_master(dev)) { ret = mlx4_mf_bond(dev); if (ret) { mlx4_err(dev, "bond for multifunction failed\n"); mlx4_do_bond(dev, false); } } } mutex_unlock(&priv->bond_mutex); if (!ret) mlx4_dbg(dev, "Device is bonded\n"); return ret; } static 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)) { int ret2 = 0; ret = mlx4_do_bond(dev, false); if (ret) mlx4_err(dev, "Failed to unbond device: %d\n", ret); if (mlx4_is_master(dev)) ret2 = mlx4_mf_unbond(dev); if (ret2) { mlx4_warn(dev, "Failed to unbond device for multifunction (%d)\n", ret2); ret = ret2; } } mutex_unlock(&priv->bond_mutex); if (!ret) mlx4_dbg(dev, "Device is unbonded\n"); return ret; } static 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 -EOPNOTSUPP; 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 map: %d\n", err); } } mutex_unlock(&priv->bond_mutex); return err; } struct mlx4_bond { struct work_struct work; struct mlx4_dev *dev; int is_bonded; struct mlx4_port_map port_map; }; static void mlx4_bond_work(struct work_struct *work) { struct mlx4_bond *bond = container_of(work, struct mlx4_bond, work); int err = 0; if (bond->is_bonded) { if (!mlx4_is_bonded(bond->dev)) { err = mlx4_bond(bond->dev); if (err) mlx4_err(bond->dev, "Fail to bond device\n"); } if (!err) { err = mlx4_port_map_set(bond->dev, &bond->port_map); if (err) mlx4_err(bond->dev, "Fail to set port map [%d][%d]: %d\n", bond->port_map.port1, bond->port_map.port2, err); } } else if (mlx4_is_bonded(bond->dev)) { err = mlx4_unbond(bond->dev); if (err) mlx4_err(bond->dev, "Fail to unbond device\n"); } put_device(&bond->dev->persist->pdev->dev); kfree(bond); } int mlx4_queue_bond_work(struct mlx4_dev *dev, int is_bonded, u8 v2p_p1, u8 v2p_p2) { struct mlx4_bond *bond; bond = kzalloc(sizeof(*bond), GFP_ATOMIC); if (!bond) return -ENOMEM; INIT_WORK(&bond->work, mlx4_bond_work); get_device(&dev->persist->pdev->dev); bond->dev = dev; bond->is_bonded = is_bonded; bond->port_map.port1 = v2p_p1; bond->port_map.port2 = v2p_p2; queue_work(mlx4_wq, &bond->work); return 0; } EXPORT_SYMBOL(mlx4_queue_bond_work); 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); } u64 mlx4_read_clock(struct mlx4_dev *dev) { u32 clockhi, clocklo, clockhi1; u64 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 -EOPNOTSUPP; if (!dev->caps.map_clock_to_user) { mlx4_dbg(dev, "Map clock to user is not supported.\n"); return -EOPNOTSUPP; } 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; /* If device removal has been requested, * do not continue retrying. */ if (dev->persist->interface_state & MLX4_INTERFACE_STATE_NOWAIT) break; /* 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 verify 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_init_hca_param *init_hca = NULL; struct mlx4_dev_cap *dev_cap = NULL; struct mlx4_adapter adapter; struct mlx4_profile profile; u64 icm_size; struct mlx4_config_dev_params params; int err; if (!mlx4_is_slave(dev)) { dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL); init_hca = kzalloc(sizeof(*init_hca), GFP_KERNEL); if (!dev_cap || !init_hca) { err = -ENOMEM; goto out_free; } err = mlx4_dev_cap(dev, dev_cap); if (err) { mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); goto out_free; } 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; goto out_free; } if (enable_4k_uar || !dev->persist->num_vfs) { init_hca->log_uar_sz = ilog2(dev->caps.num_uars) + PAGE_SHIFT - DEFAULT_UAR_PAGE_SHIFT; init_hca->uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12; } else { 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) goto out_free; 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) { 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_info(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 != -EOPNOTSUPP) { 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)); err = 0; goto out_free; unmap_bf: unmap_internal_clock(dev); unmap_bf_area(dev); if (mlx4_is_slave(dev)) mlx4_slave_destroy_special_qp_cap(dev); 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); out_free: kfree(dev_cap); kfree(init_hca); 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, MLX4_RES_USAGE_DRIVER); if (!err || err == -ENOSPC) { priv->def_counter[port] = idx; err = 0; } 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, u8 usage) { u32 in_modifier = RES_COUNTER | (((u32)usage & 3) << 30); u64 out_param; int err; if (mlx4_is_mfunc(dev)) { err = mlx4_cmd_imm(dev, 0, &out_param, in_modifier, RES_OP_RESERVE, MLX4_CMD_ALLOC_RES, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); if (!err) *idx = get_param_l(&out_param); if (WARN_ON(err == -ENOSPC)) err = -EINVAL; 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 = min3(dev->caps.num_ports * (int)num_online_cpus() + 1, dev->caps.num_eqs - dev->caps.reserved_eqs, MAX_MSIX); if (msi_x > 1) nreq = min_t(int, nreq, msi_x); 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); 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 (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) { 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_devlink_port_type_set(struct devlink_port *devlink_port, enum devlink_port_type port_type) { struct mlx4_port_info *info = container_of(devlink_port, struct mlx4_port_info, devlink_port); enum mlx4_port_type mlx4_port_type; switch (port_type) { case DEVLINK_PORT_TYPE_AUTO: mlx4_port_type = MLX4_PORT_TYPE_AUTO; break; case DEVLINK_PORT_TYPE_ETH: mlx4_port_type = MLX4_PORT_TYPE_ETH; break; case DEVLINK_PORT_TYPE_IB: mlx4_port_type = MLX4_PORT_TYPE_IB; break; default: return -EOPNOTSUPP; } return __set_port_type(info, mlx4_port_type); } static const struct devlink_port_ops mlx4_devlink_port_ops = { .port_type_set = mlx4_devlink_port_type_set, }; static int mlx4_init_port_info(struct mlx4_dev *dev, int port) { struct devlink *devlink = priv_to_devlink(mlx4_priv(dev)); struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; int err; err = devl_port_register_with_ops(devlink, &info->devlink_port, port, &mlx4_devlink_port_ops); if (err) return err; /* Ethernet and IB drivers will normally set the port type, * but if they are not built set the type now to prevent * devlink_port_type_warn() from firing. */ if (!IS_ENABLED(CONFIG_MLX4_EN) && dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH) devlink_port_type_eth_set(&info->devlink_port); else if (!IS_ENABLED(CONFIG_MLX4_INFINIBAND) && dev->caps.port_type[port] == MLX4_PORT_TYPE_IB) devlink_port_type_ib_set(&info->devlink_port, NULL); 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 = 0444; } else { info->port_attr.attr.mode = 0644; 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); devlink_port_type_clear(&info->devlink_port); devl_port_unregister(&info->devlink_port); info->port = -1; return err; } 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 = 0444; } else { info->port_mtu_attr.attr.mode = 0644; 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); devlink_port_type_clear(&info->devlink_port); devl_port_unregister(&info->devlink_port); info->port = -1; return err; } return 0; } 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); devlink_port_type_clear(&info->devlink_port); devl_port_unregister(&info->devlink_port); #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 = kcalloc(num_entries, sizeof(struct mlx4_steer), 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 = kcalloc(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_pci_enable_device(struct mlx4_dev *dev) { struct pci_dev *pdev = dev->persist->pdev; int err = 0; mutex_lock(&dev->persist->pci_status_mutex); if (dev->persist->pci_status == MLX4_PCI_STATUS_DISABLED) { err = pci_enable_device(pdev); if (!err) dev->persist->pci_status = MLX4_PCI_STATUS_ENABLED; } mutex_unlock(&dev->persist->pci_status_mutex); return err; } static void mlx4_pci_disable_device(struct mlx4_dev *dev) { struct pci_dev *pdev = dev->persist->pdev; mutex_lock(&dev->persist->pci_status_mutex); if (dev->persist->pci_status == MLX4_PCI_STATUS_ENABLED) { pci_disable_device(pdev); dev->persist->pci_status = MLX4_PCI_STATUS_DISABLED; } mutex_unlock(&dev->persist->pci_status_mutex); } 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 devlink *devlink = priv_to_devlink(priv); struct mlx4_dev *dev; unsigned sum = 0; int err; int port; int i; struct mlx4_dev_cap *dev_cap = NULL; int existing_vfs = 0; devl_assert_locked(devlink); dev = &priv->dev; err = mlx4_adev_init(dev); if (err) return err; ATOMIC_INIT_NOTIFIER_HEAD(&priv->event_nh); mutex_init(&priv->port_mutex); mutex_init(&priv->bond_mutex); INIT_LIST_HEAD(&priv->pgdir_list); mutex_init(&priv->pgdir_mutex); spin_lock_init(&priv->cmd.context_lock); 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) goto err_adev; else { mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n"); err = -EINVAL; goto err_adev; } } 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"); err = -EINVAL; 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)) pcie_print_link_status(dev->persist->pdev); /* 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 = -EOPNOTSUPP; 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; } mlx4_init_quotas(dev); 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; /* 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_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)) mlx4_slave_destroy_special_qp_cap(dev); 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); err_adev: mlx4_adev_cleanup(dev); 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 = mlx4_pci_enable_device(&priv->dev); 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 < ARRAY_SIZE(nvfs) && 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 < ARRAY_SIZE(prb_vf) && 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 = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (err) { dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n"); err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) { dev_err(&pdev->dev, "Can't set 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 < ARRAY_SIZE(nvfs) && vfs_offset + nvfs[i] < extended_func_num(pdev); vfs_offset += nvfs[i], i++) ; if (i == ARRAY_SIZE(nvfs)) { 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_crdump_init(&priv->dev); if (err) goto err_release_regions; err = mlx4_catas_init(&priv->dev); if (err) goto err_crdump; 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_crdump: mlx4_crdump_end(&priv->dev); err_release_regions: pci_release_regions(pdev); err_disable_pdev: mlx4_pci_disable_device(&priv->dev); return err; } static void mlx4_devlink_param_load_driverinit_values(struct devlink *devlink) { struct mlx4_priv *priv = devlink_priv(devlink); struct mlx4_dev *dev = &priv->dev; struct mlx4_fw_crdump *crdump = &dev->persist->crdump; union devlink_param_value saved_value; int err; err = devl_param_driverinit_value_get(devlink, DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, &saved_value); if (!err && mlx4_internal_err_reset != saved_value.vbool) { mlx4_internal_err_reset = saved_value.vbool; /* Notify on value changed on runtime configuration mode */ devl_param_value_changed(devlink, DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET); } err = devl_param_driverinit_value_get(devlink, DEVLINK_PARAM_GENERIC_ID_MAX_MACS, &saved_value); if (!err) log_num_mac = order_base_2(saved_value.vu32); err = devl_param_driverinit_value_get(devlink, MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE, &saved_value); if (!err) enable_64b_cqe_eqe = saved_value.vbool; err = devl_param_driverinit_value_get(devlink, MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR, &saved_value); if (!err) enable_4k_uar = saved_value.vbool; err = devl_param_driverinit_value_get(devlink, DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, &saved_value); if (!err && crdump->snapshot_enable != saved_value.vbool) { crdump->snapshot_enable = saved_value.vbool; devl_param_value_changed(devlink, DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT); } } static void mlx4_restart_one_down(struct pci_dev *pdev); static int mlx4_restart_one_up(struct pci_dev *pdev, bool reload, struct devlink *devlink); static int mlx4_devlink_reload_down(struct devlink *devlink, bool netns_change, enum devlink_reload_action action, enum devlink_reload_limit limit, struct netlink_ext_ack *extack) { struct mlx4_priv *priv = devlink_priv(devlink); struct mlx4_dev *dev = &priv->dev; struct mlx4_dev_persistent *persist = dev->persist; if (netns_change) { NL_SET_ERR_MSG_MOD(extack, "Namespace change is not supported"); return -EOPNOTSUPP; } if (persist->num_vfs) mlx4_warn(persist->dev, "Reload performed on PF, will cause reset on operating Virtual Functions\n"); mlx4_restart_one_down(persist->pdev); return 0; } static int mlx4_devlink_reload_up(struct devlink *devlink, enum devlink_reload_action action, enum devlink_reload_limit limit, u32 *actions_performed, struct netlink_ext_ack *extack) { struct mlx4_priv *priv = devlink_priv(devlink); struct mlx4_dev *dev = &priv->dev; struct mlx4_dev_persistent *persist = dev->persist; int err; *actions_performed = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); err = mlx4_restart_one_up(persist->pdev, true, devlink); if (err) mlx4_err(persist->dev, "mlx4_restart_one_up failed, ret=%d\n", err); return err; } static const struct devlink_ops mlx4_devlink_ops = { .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT), .reload_down = mlx4_devlink_reload_down, .reload_up = mlx4_devlink_reload_up, }; static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) { struct devlink *devlink; struct mlx4_priv *priv; struct mlx4_dev *dev; int ret; printk_once(KERN_INFO "%s", mlx4_version); devlink = devlink_alloc(&mlx4_devlink_ops, sizeof(*priv), &pdev->dev); if (!devlink) return -ENOMEM; devl_lock(devlink); priv = devlink_priv(devlink); dev = &priv->dev; dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL); if (!dev->persist) { ret = -ENOMEM; goto err_devlink_free; } 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); mutex_init(&dev->persist->pci_status_mutex); ret = devl_params_register(devlink, mlx4_devlink_params, ARRAY_SIZE(mlx4_devlink_params)); if (ret) goto err_devlink_unregister; mlx4_devlink_set_params_init_values(devlink); ret = __mlx4_init_one(pdev, id->driver_data, priv); if (ret) goto err_params_unregister; pci_save_state(pdev); devl_unlock(devlink); devlink_register(devlink); return 0; err_params_unregister: devl_params_unregister(devlink, mlx4_devlink_params, ARRAY_SIZE(mlx4_devlink_params)); err_devlink_unregister: kfree(dev->persist); err_devlink_free: devl_unlock(devlink); devlink_free(devlink); 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; struct devlink *devlink; int p, i; devlink = priv_to_devlink(priv); devl_assert_locked(devlink); 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); mlx4_slave_destroy_special_qp_cap(dev); kfree(dev->dev_vfs); mlx4_adev_cleanup(dev); 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); struct devlink *devlink = priv_to_devlink(priv); int active_vfs = 0; devlink_unregister(devlink); devl_lock(devlink); if (mlx4_is_slave(dev)) persist->interface_state |= MLX4_INTERFACE_STATE_NOWAIT; 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); mlx4_crdump_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); mlx4_pci_disable_device(dev); devl_params_unregister(devlink, mlx4_devlink_params, ARRAY_SIZE(mlx4_devlink_params)); kfree(dev->persist); devl_unlock(devlink); devlink_free(devlink); } 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; } static void mlx4_restart_one_down(struct pci_dev *pdev) { mlx4_unload_one(pdev); } static int mlx4_restart_one_up(struct pci_dev *pdev, bool reload, struct devlink *devlink) { 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)); if (reload) mlx4_devlink_param_load_driverinit_values(devlink); 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; } int mlx4_restart_one(struct pci_dev *pdev) { mlx4_restart_one_down(pdev); return mlx4_restart_one_up(pdev, false, NULL); } #define MLX_SP(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_FORCE_SENSE_PORT } #define MLX_VF(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_IS_VF } #define MLX_GN(id) { PCI_VDEVICE(MELLANOX, id), 0 } static const struct pci_device_id mlx4_pci_table[] = { #ifdef CONFIG_MLX4_CORE_GEN2 /* MT25408 "Hermon" */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_SDR), /* SDR */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR), /* DDR */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR), /* QDR */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2), /* DDR Gen2 */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2), /* QDR Gen2 */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN), /* EN 10GigE */ MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2), /* EN 10GigE Gen2 */ /* MT25458 ConnectX EN 10GBASE-T */ MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN), MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2), /* Gen2 */ /* MT26468 ConnectX EN 10GigE PCIe Gen2*/ MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2), /* MT26438 ConnectX EN 40GigE PCIe Gen2 5GT/s */ MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2), /* MT26478 ConnectX2 40GigE PCIe Gen2 */ MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX2), /* MT25400 Family [ConnectX-2] */ MLX_VF(0x1002), /* Virtual Function */ #endif /* CONFIG_MLX4_CORE_GEN2 */ /* MT27500 Family [ConnectX-3] */ MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3), MLX_VF(0x1004), /* Virtual Function */ MLX_GN(0x1005), /* MT27510 Family */ MLX_GN(0x1006), /* MT27511 Family */ MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO), /* MT27520 Family */ MLX_GN(0x1008), /* MT27521 Family */ MLX_GN(0x1009), /* MT27530 Family */ MLX_GN(0x100a), /* MT27531 Family */ MLX_GN(0x100b), /* MT27540 Family */ MLX_GN(0x100c), /* MT27541 Family */ MLX_GN(0x100d), /* MT27550 Family */ MLX_GN(0x100e), /* MT27551 Family */ MLX_GN(0x100f), /* MT27560 Family */ MLX_GN(0x1010), /* MT27561 Family */ /* * See the mellanox_check_broken_intx_masking() quirk when * adding devices */ { 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); struct mlx4_dev *dev = persist->dev; struct devlink *devlink; mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n"); mlx4_enter_error_state(persist); devlink = priv_to_devlink(mlx4_priv(dev)); devl_lock(devlink); mutex_lock(&persist->interface_state_mutex); if (persist->interface_state & MLX4_INTERFACE_STATE_UP) mlx4_unload_one(pdev); mutex_unlock(&persist->interface_state_mutex); devl_unlock(devlink); if (state == pci_channel_io_perm_failure) return PCI_ERS_RESULT_DISCONNECT; mlx4_pci_disable_device(persist->dev); 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; int err; mlx4_err(dev, "mlx4_pci_slot_reset was called\n"); err = mlx4_pci_enable_device(dev); if (err) { mlx4_err(dev, "Can not re-enable device, err=%d\n", err); return PCI_ERS_RESULT_DISCONNECT; } pci_set_master(pdev); pci_restore_state(pdev); pci_save_state(pdev); return PCI_ERS_RESULT_RECOVERED; } static void mlx4_pci_resume(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}; struct devlink *devlink; int total_vfs; int err; mlx4_err(dev, "%s was called\n", __func__); total_vfs = dev->persist->num_vfs; memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); devlink = priv_to_devlink(priv); devl_lock(devlink); mutex_lock(&persist->interface_state_mutex); if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) { err = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs, priv, 1); if (err) { mlx4_err(dev, "%s: mlx4_load_one failed, err=%d\n", __func__, err); goto end; } 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); } end: mutex_unlock(&persist->interface_state_mutex); devl_unlock(devlink); } static void mlx4_shutdown(struct pci_dev *pdev) { struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); struct mlx4_dev *dev = persist->dev; struct devlink *devlink; mlx4_info(persist->dev, "mlx4_shutdown was called\n"); devlink = priv_to_devlink(mlx4_priv(dev)); devl_lock(devlink); mutex_lock(&persist->interface_state_mutex); if (persist->interface_state & MLX4_INTERFACE_STATE_UP) mlx4_unload_one(pdev); mutex_unlock(&persist->interface_state_mutex); devl_unlock(devlink); mlx4_pci_disable_device(dev); } static const struct pci_error_handlers mlx4_err_handler = { .error_detected = mlx4_pci_err_detected, .slot_reset = mlx4_pci_slot_reset, .resume = mlx4_pci_resume, }; static int __maybe_unused mlx4_suspend(struct device *dev_d) { struct pci_dev *pdev = to_pci_dev(dev_d); struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); struct mlx4_dev *dev = persist->dev; struct devlink *devlink; mlx4_err(dev, "suspend was called\n"); devlink = priv_to_devlink(mlx4_priv(dev)); devl_lock(devlink); mutex_lock(&persist->interface_state_mutex); if (persist->interface_state & MLX4_INTERFACE_STATE_UP) mlx4_unload_one(pdev); mutex_unlock(&persist->interface_state_mutex); devl_unlock(devlink); return 0; } static int __maybe_unused mlx4_resume(struct device *dev_d) { struct pci_dev *pdev = to_pci_dev(dev_d); 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}; struct devlink *devlink; int total_vfs; int ret = 0; mlx4_err(dev, "resume was called\n"); total_vfs = dev->persist->num_vfs; memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); devlink = priv_to_devlink(priv); devl_lock(devlink); 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) { ret = restore_current_port_types(dev, dev->persist->curr_port_type, dev->persist->curr_port_poss_type); if (ret) mlx4_err(dev, "resume: could not restore original port types (%d)\n", ret); } } mutex_unlock(&persist->interface_state_mutex); devl_unlock(devlink); return ret; } static SIMPLE_DEV_PM_OPS(mlx4_pm_ops, mlx4_suspend, mlx4_resume); 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, .driver.pm = &mlx4_pm_ops, .err_handler = &mlx4_err_handler, }; static int __init mlx4_verify_params(void) { if (msi_x < 0) { pr_warn("mlx4_core: bad msi_x: %d\n", msi_x); return -1; } 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 < 0) || (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; WARN_ONCE(strcmp(MLX4_ADEV_NAME, KBUILD_MODNAME), "mlx4_core name not in sync with kernel module name"); 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);
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