| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Eli Cohen | 1013 | 10.90% | 17 | 7.56% |
| Saeed Mahameed | 940 | 10.11% | 24 | 10.67% |
| Majd Dibbiny | 874 | 9.40% | 9 | 4.00% |
| Jack Morgenstein | 867 | 9.33% | 2 | 0.89% |
| Leon Romanovsky | 721 | 7.76% | 19 | 8.44% |
| Parav Pandit | 656 | 7.06% | 18 | 8.00% |
| Yishai Hadas | 344 | 3.70% | 4 | 1.78% |
| Mohamad Haj Yahia | 343 | 3.69% | 8 | 3.56% |
| Huy Nguyen | 320 | 3.44% | 8 | 3.56% |
| Moshe Shemesh | 315 | 3.39% | 9 | 4.00% |
| Shay Drory | 246 | 2.65% | 8 | 3.56% |
| Eran Ben Elisha | 246 | 2.65% | 8 | 3.56% |
| Moni Shoua | 215 | 2.31% | 3 | 1.33% |
| Daniel Jurgens | 207 | 2.23% | 10 | 4.44% |
| Amir Vadai | 177 | 1.90% | 1 | 0.44% |
| Changcheng Liu | 162 | 1.74% | 1 | 0.44% |
| Feras Daoud | 136 | 1.46% | 4 | 1.78% |
| Mark Zhang | 133 | 1.43% | 1 | 0.44% |
| Michael Guralnik | 123 | 1.32% | 4 | 1.78% |
| Ilan Tayari | 107 | 1.15% | 5 | 2.22% |
| Maher Sanalla | 106 | 1.14% | 4 | 1.78% |
| Amir Tzin | 99 | 1.07% | 3 | 1.33% |
| Aya Levin | 88 | 0.95% | 4 | 1.78% |
| Mark Bloch | 86 | 0.93% | 3 | 1.33% |
| Bodong Wang | 85 | 0.91% | 4 | 1.78% |
| Gavin Li | 76 | 0.82% | 2 | 0.89% |
| Kamal Heib | 75 | 0.81% | 2 | 0.89% |
| Yuval Avnery | 68 | 0.73% | 2 | 0.89% |
| Noa Osherovich | 61 | 0.66% | 2 | 0.89% |
| Roy Novich | 54 | 0.58% | 2 | 0.89% |
| Maor Gottlieb | 52 | 0.56% | 5 | 2.22% |
| Aviv Heller | 48 | 0.52% | 1 | 0.44% |
| Meir Lichtinger | 40 | 0.43% | 3 | 1.33% |
| Alex Vesker | 34 | 0.37% | 2 | 0.89% |
| Ariel Levkovich | 32 | 0.34% | 1 | 0.44% |
| Yevgeny Kliteynik | 26 | 0.28% | 1 | 0.44% |
| Or Gerlitz | 23 | 0.25% | 4 | 1.78% |
| Tal Gilboa | 14 | 0.15% | 1 | 0.44% |
| Carol L Soto | 13 | 0.14% | 1 | 0.44% |
| Matan Barak | 13 | 0.14% | 1 | 0.44% |
| Shani Shapp | 10 | 0.11% | 1 | 0.44% |
| Chris Mi | 9 | 0.10% | 1 | 0.44% |
| Christophe Jaillet | 6 | 0.06% | 1 | 0.44% |
| Gal Pressman | 6 | 0.06% | 1 | 0.44% |
| Sagi Grimberg | 5 | 0.05% | 1 | 0.44% |
| Achiad Shochat | 4 | 0.04% | 1 | 0.44% |
| Myron Stowe | 3 | 0.03% | 1 | 0.44% |
| Haggai Abramonvsky | 3 | 0.03% | 1 | 0.44% |
| Sasha Levin | 3 | 0.03% | 1 | 0.44% |
| Lior Nahmanson | 2 | 0.02% | 1 | 0.44% |
| Ben Ben-ishay | 2 | 0.02% | 1 | 0.44% |
| Jakub Kiciński | 1 | 0.01% | 1 | 0.44% |
| Christoph Hellwig | 1 | 0.01% | 1 | 0.44% |
| Julia Lawall | 1 | 0.01% | 1 | 0.44% |
| Total | 9294 | 225 |
/* * Copyright (c) 2013-2015, Mellanox Technologies. 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/highmem.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/pci.h> #include <linux/dma-mapping.h> #include <linux/slab.h> #include <linux/io-mapping.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/mlx5/driver.h> #include <linux/mlx5/cq.h> #include <linux/mlx5/qp.h> #include <linux/debugfs.h> #include <linux/kmod.h> #include <linux/mlx5/mlx5_ifc.h> #include <linux/mlx5/vport.h> #ifdef CONFIG_RFS_ACCEL #include <linux/cpu_rmap.h> #endif #include <linux/version.h> #include <net/devlink.h> #include "mlx5_core.h" #include "lib/eq.h" #include "fs_core.h" #include "lib/mpfs.h" #include "eswitch.h" #include "devlink.h" #include "fw_reset.h" #include "lib/mlx5.h" #include "lib/tout.h" #include "fpga/core.h" #include "en_accel/ipsec.h" #include "lib/clock.h" #include "lib/vxlan.h" #include "lib/geneve.h" #include "lib/devcom.h" #include "lib/pci_vsc.h" #include "diag/fw_tracer.h" #include "ecpf.h" #include "lib/hv_vhca.h" #include "diag/rsc_dump.h" #include "sf/vhca_event.h" #include "sf/dev/dev.h" #include "sf/sf.h" #include "mlx5_irq.h" MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); MODULE_DESCRIPTION("Mellanox 5th generation network adapters (ConnectX series) core driver"); MODULE_LICENSE("Dual BSD/GPL"); unsigned int mlx5_core_debug_mask; module_param_named(debug_mask, mlx5_core_debug_mask, uint, 0644); MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0"); static unsigned int prof_sel = MLX5_DEFAULT_PROF; module_param_named(prof_sel, prof_sel, uint, 0444); MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2"); static u32 sw_owner_id[4]; #define MAX_SW_VHCA_ID (BIT(__mlx5_bit_sz(cmd_hca_cap_2, sw_vhca_id)) - 1) static DEFINE_IDA(sw_vhca_ida); enum { MLX5_ATOMIC_REQ_MODE_BE = 0x0, MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS = 0x1, }; #define LOG_MAX_SUPPORTED_QPS 0xff static struct mlx5_profile profile[] = { [0] = { .mask = 0, }, [1] = { .mask = MLX5_PROF_MASK_QP_SIZE, .log_max_qp = 12, }, [2] = { .mask = MLX5_PROF_MASK_QP_SIZE | MLX5_PROF_MASK_MR_CACHE, .log_max_qp = LOG_MAX_SUPPORTED_QPS, .mr_cache[0] = { .size = 500, .limit = 250 }, .mr_cache[1] = { .size = 500, .limit = 250 }, .mr_cache[2] = { .size = 500, .limit = 250 }, .mr_cache[3] = { .size = 500, .limit = 250 }, .mr_cache[4] = { .size = 500, .limit = 250 }, .mr_cache[5] = { .size = 500, .limit = 250 }, .mr_cache[6] = { .size = 500, .limit = 250 }, .mr_cache[7] = { .size = 500, .limit = 250 }, .mr_cache[8] = { .size = 500, .limit = 250 }, .mr_cache[9] = { .size = 500, .limit = 250 }, .mr_cache[10] = { .size = 500, .limit = 250 }, .mr_cache[11] = { .size = 500, .limit = 250 }, .mr_cache[12] = { .size = 64, .limit = 32 }, .mr_cache[13] = { .size = 32, .limit = 16 }, .mr_cache[14] = { .size = 16, .limit = 8 }, .mr_cache[15] = { .size = 8, .limit = 4 }, }, }; static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili, u32 warn_time_mili) { unsigned long warn = jiffies + msecs_to_jiffies(warn_time_mili); unsigned long end = jiffies + msecs_to_jiffies(max_wait_mili); u32 fw_initializing; int err = 0; do { fw_initializing = ioread32be(&dev->iseg->initializing); if (!(fw_initializing >> 31)) break; if (time_after(jiffies, end) || test_and_clear_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state)) { err = -EBUSY; break; } if (warn_time_mili && time_after(jiffies, warn)) { mlx5_core_warn(dev, "Waiting for FW initialization, timeout abort in %ds (0x%x)\n", jiffies_to_msecs(end - warn) / 1000, fw_initializing); warn = jiffies + msecs_to_jiffies(warn_time_mili); } msleep(mlx5_tout_ms(dev, FW_PRE_INIT_WAIT)); } while (true); return err; } static void mlx5_set_driver_version(struct mlx5_core_dev *dev) { int driver_ver_sz = MLX5_FLD_SZ_BYTES(set_driver_version_in, driver_version); u8 in[MLX5_ST_SZ_BYTES(set_driver_version_in)] = {}; int remaining_size = driver_ver_sz; char *string; if (!MLX5_CAP_GEN(dev, driver_version)) return; string = MLX5_ADDR_OF(set_driver_version_in, in, driver_version); strncpy(string, "Linux", remaining_size); remaining_size = max_t(int, 0, driver_ver_sz - strlen(string)); strncat(string, ",", remaining_size); remaining_size = max_t(int, 0, driver_ver_sz - strlen(string)); strncat(string, KBUILD_MODNAME, remaining_size); remaining_size = max_t(int, 0, driver_ver_sz - strlen(string)); strncat(string, ",", remaining_size); remaining_size = max_t(int, 0, driver_ver_sz - strlen(string)); snprintf(string + strlen(string), remaining_size, "%u.%u.%u", LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL); /*Send the command*/ MLX5_SET(set_driver_version_in, in, opcode, MLX5_CMD_OP_SET_DRIVER_VERSION); mlx5_cmd_exec_in(dev, set_driver_version, in); } static int set_dma_caps(struct pci_dev *pdev) { int err; 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"); return err; } } dma_set_max_seg_size(&pdev->dev, 2u * 1024 * 1024 * 1024); return err; } static int mlx5_pci_enable_device(struct mlx5_core_dev *dev) { struct pci_dev *pdev = dev->pdev; int err = 0; mutex_lock(&dev->pci_status_mutex); if (dev->pci_status == MLX5_PCI_STATUS_DISABLED) { err = pci_enable_device(pdev); if (!err) dev->pci_status = MLX5_PCI_STATUS_ENABLED; } mutex_unlock(&dev->pci_status_mutex); return err; } static void mlx5_pci_disable_device(struct mlx5_core_dev *dev) { struct pci_dev *pdev = dev->pdev; mutex_lock(&dev->pci_status_mutex); if (dev->pci_status == MLX5_PCI_STATUS_ENABLED) { pci_disable_device(pdev); dev->pci_status = MLX5_PCI_STATUS_DISABLED; } mutex_unlock(&dev->pci_status_mutex); } static int request_bar(struct pci_dev *pdev) { int err = 0; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { dev_err(&pdev->dev, "Missing registers BAR, aborting\n"); return -ENODEV; } err = pci_request_regions(pdev, KBUILD_MODNAME); if (err) dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n"); return err; } static void release_bar(struct pci_dev *pdev) { pci_release_regions(pdev); } struct mlx5_reg_host_endianness { u8 he; u8 rsvd[15]; }; static u16 to_fw_pkey_sz(struct mlx5_core_dev *dev, u32 size) { switch (size) { case 128: return 0; case 256: return 1; case 512: return 2; case 1024: return 3; case 2048: return 4; case 4096: return 5; default: mlx5_core_warn(dev, "invalid pkey table size %d\n", size); return 0; } } static int mlx5_core_get_caps_mode(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type, enum mlx5_cap_mode cap_mode) { u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)]; int out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); void *out, *hca_caps; u16 opmod = (cap_type << 1) | (cap_mode & 0x01); int err; memset(in, 0, sizeof(in)); out = kzalloc(out_sz, GFP_KERNEL); if (!out) return -ENOMEM; MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP); MLX5_SET(query_hca_cap_in, in, op_mod, opmod); err = mlx5_cmd_exec_inout(dev, query_hca_cap, in, out); if (err) { mlx5_core_warn(dev, "QUERY_HCA_CAP : type(%x) opmode(%x) Failed(%d)\n", cap_type, cap_mode, err); goto query_ex; } hca_caps = MLX5_ADDR_OF(query_hca_cap_out, out, capability); switch (cap_mode) { case HCA_CAP_OPMOD_GET_MAX: memcpy(dev->caps.hca[cap_type]->max, hca_caps, MLX5_UN_SZ_BYTES(hca_cap_union)); break; case HCA_CAP_OPMOD_GET_CUR: memcpy(dev->caps.hca[cap_type]->cur, hca_caps, MLX5_UN_SZ_BYTES(hca_cap_union)); break; default: mlx5_core_warn(dev, "Tried to query dev cap type(%x) with wrong opmode(%x)\n", cap_type, cap_mode); err = -EINVAL; break; } query_ex: kfree(out); return err; } int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type) { int ret; ret = mlx5_core_get_caps_mode(dev, cap_type, HCA_CAP_OPMOD_GET_CUR); if (ret) return ret; return mlx5_core_get_caps_mode(dev, cap_type, HCA_CAP_OPMOD_GET_MAX); } static int set_caps(struct mlx5_core_dev *dev, void *in, int opmod) { MLX5_SET(set_hca_cap_in, in, opcode, MLX5_CMD_OP_SET_HCA_CAP); MLX5_SET(set_hca_cap_in, in, op_mod, opmod << 1); return mlx5_cmd_exec_in(dev, set_hca_cap, in); } static int handle_hca_cap_atomic(struct mlx5_core_dev *dev, void *set_ctx) { void *set_hca_cap; int req_endianness; int err; if (!MLX5_CAP_GEN(dev, atomic)) return 0; err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC); if (err) return err; req_endianness = MLX5_CAP_ATOMIC(dev, supported_atomic_req_8B_endianness_mode_1); if (req_endianness != MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS) return 0; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); /* Set requestor to host endianness */ MLX5_SET(atomic_caps, set_hca_cap, atomic_req_8B_endianness_mode, MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS); return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ATOMIC); } static int handle_hca_cap_odp(struct mlx5_core_dev *dev, void *set_ctx) { void *set_hca_cap; bool do_set = false; int err; if (!IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) || !MLX5_CAP_GEN(dev, pg)) return 0; err = mlx5_core_get_caps(dev, MLX5_CAP_ODP); if (err) return err; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_ODP]->cur, MLX5_ST_SZ_BYTES(odp_cap)); #define ODP_CAP_SET_MAX(dev, field) \ do { \ u32 _res = MLX5_CAP_ODP_MAX(dev, field); \ if (_res) { \ do_set = true; \ MLX5_SET(odp_cap, set_hca_cap, field, _res); \ } \ } while (0) ODP_CAP_SET_MAX(dev, ud_odp_caps.srq_receive); ODP_CAP_SET_MAX(dev, rc_odp_caps.srq_receive); ODP_CAP_SET_MAX(dev, xrc_odp_caps.srq_receive); ODP_CAP_SET_MAX(dev, xrc_odp_caps.send); ODP_CAP_SET_MAX(dev, xrc_odp_caps.receive); ODP_CAP_SET_MAX(dev, xrc_odp_caps.write); ODP_CAP_SET_MAX(dev, xrc_odp_caps.read); ODP_CAP_SET_MAX(dev, xrc_odp_caps.atomic); ODP_CAP_SET_MAX(dev, dc_odp_caps.srq_receive); ODP_CAP_SET_MAX(dev, dc_odp_caps.send); ODP_CAP_SET_MAX(dev, dc_odp_caps.receive); ODP_CAP_SET_MAX(dev, dc_odp_caps.write); ODP_CAP_SET_MAX(dev, dc_odp_caps.read); ODP_CAP_SET_MAX(dev, dc_odp_caps.atomic); if (!do_set) return 0; return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ODP); } static int max_uc_list_get_devlink_param(struct mlx5_core_dev *dev) { struct devlink *devlink = priv_to_devlink(dev); union devlink_param_value val; int err; err = devlink_param_driverinit_value_get(devlink, DEVLINK_PARAM_GENERIC_ID_MAX_MACS, &val); if (!err) return val.vu32; mlx5_core_dbg(dev, "Failed to get param. err = %d\n", err); return err; } bool mlx5_is_roce_on(struct mlx5_core_dev *dev) { struct devlink *devlink = priv_to_devlink(dev); union devlink_param_value val; int err; err = devlink_param_driverinit_value_get(devlink, DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, &val); if (!err) return val.vbool; mlx5_core_dbg(dev, "Failed to get param. err = %d\n", err); return MLX5_CAP_GEN(dev, roce); } EXPORT_SYMBOL(mlx5_is_roce_on); static int handle_hca_cap_2(struct mlx5_core_dev *dev, void *set_ctx) { void *set_hca_cap; int err; if (!MLX5_CAP_GEN_MAX(dev, hca_cap_2)) return 0; err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL_2); if (err) return err; if (!MLX5_CAP_GEN_2_MAX(dev, sw_vhca_id_valid) || !(dev->priv.sw_vhca_id > 0)) return 0; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_GENERAL_2]->cur, MLX5_ST_SZ_BYTES(cmd_hca_cap_2)); MLX5_SET(cmd_hca_cap_2, set_hca_cap, sw_vhca_id_valid, 1); return set_caps(dev, set_ctx, MLX5_CAP_GENERAL_2); } static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx) { struct mlx5_profile *prof = &dev->profile; void *set_hca_cap; int max_uc_list; int err; err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL); if (err) return err; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_GENERAL]->cur, MLX5_ST_SZ_BYTES(cmd_hca_cap)); mlx5_core_dbg(dev, "Current Pkey table size %d Setting new size %d\n", mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(dev, pkey_table_size)), 128); /* we limit the size of the pkey table to 128 entries for now */ MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size, to_fw_pkey_sz(dev, 128)); /* Check log_max_qp from HCA caps to set in current profile */ if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) { prof->log_max_qp = min_t(u8, 18, MLX5_CAP_GEN_MAX(dev, log_max_qp)); } else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) { mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n", prof->log_max_qp, MLX5_CAP_GEN_MAX(dev, log_max_qp)); prof->log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp); } if (prof->mask & MLX5_PROF_MASK_QP_SIZE) MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp, prof->log_max_qp); /* disable cmdif checksum */ MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0); /* Enable 4K UAR only when HCA supports it and page size is bigger * than 4K. */ if (MLX5_CAP_GEN_MAX(dev, uar_4k) && PAGE_SIZE > 4096) MLX5_SET(cmd_hca_cap, set_hca_cap, uar_4k, 1); MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12); if (MLX5_CAP_GEN_MAX(dev, cache_line_128byte)) MLX5_SET(cmd_hca_cap, set_hca_cap, cache_line_128byte, cache_line_size() >= 128 ? 1 : 0); if (MLX5_CAP_GEN_MAX(dev, dct)) MLX5_SET(cmd_hca_cap, set_hca_cap, dct, 1); if (MLX5_CAP_GEN_MAX(dev, pci_sync_for_fw_update_event)) MLX5_SET(cmd_hca_cap, set_hca_cap, pci_sync_for_fw_update_event, 1); if (MLX5_CAP_GEN_MAX(dev, num_vhca_ports)) MLX5_SET(cmd_hca_cap, set_hca_cap, num_vhca_ports, MLX5_CAP_GEN_MAX(dev, num_vhca_ports)); if (MLX5_CAP_GEN_MAX(dev, release_all_pages)) MLX5_SET(cmd_hca_cap, set_hca_cap, release_all_pages, 1); if (MLX5_CAP_GEN_MAX(dev, mkey_by_name)) MLX5_SET(cmd_hca_cap, set_hca_cap, mkey_by_name, 1); mlx5_vhca_state_cap_handle(dev, set_hca_cap); if (MLX5_CAP_GEN_MAX(dev, num_total_dynamic_vf_msix)) MLX5_SET(cmd_hca_cap, set_hca_cap, num_total_dynamic_vf_msix, MLX5_CAP_GEN_MAX(dev, num_total_dynamic_vf_msix)); if (MLX5_CAP_GEN(dev, roce_rw_supported)) MLX5_SET(cmd_hca_cap, set_hca_cap, roce, mlx5_is_roce_on(dev)); max_uc_list = max_uc_list_get_devlink_param(dev); if (max_uc_list > 0) MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_current_uc_list, ilog2(max_uc_list)); return set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE); } /* Cached MLX5_CAP_GEN(dev, roce) can be out of sync this early in the * boot process. * In case RoCE cap is writable in FW and user/devlink requested to change the * cap, we are yet to query the final state of the above cap. * Hence, the need for this function. * * Returns * True: * 1) RoCE cap is read only in FW and already disabled * OR: * 2) RoCE cap is writable in FW and user/devlink requested it off. * * In any other case, return False. */ static bool is_roce_fw_disabled(struct mlx5_core_dev *dev) { return (MLX5_CAP_GEN(dev, roce_rw_supported) && !mlx5_is_roce_on(dev)) || (!MLX5_CAP_GEN(dev, roce_rw_supported) && !MLX5_CAP_GEN(dev, roce)); } static int handle_hca_cap_roce(struct mlx5_core_dev *dev, void *set_ctx) { void *set_hca_cap; int err; if (is_roce_fw_disabled(dev)) return 0; err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE); if (err) return err; if (MLX5_CAP_ROCE(dev, sw_r_roce_src_udp_port) || !MLX5_CAP_ROCE_MAX(dev, sw_r_roce_src_udp_port)) return 0; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_ROCE]->cur, MLX5_ST_SZ_BYTES(roce_cap)); MLX5_SET(roce_cap, set_hca_cap, sw_r_roce_src_udp_port, 1); err = set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MOD_ROCE); return err; } static int handle_hca_cap_port_selection(struct mlx5_core_dev *dev, void *set_ctx) { void *set_hca_cap; int err; if (!MLX5_CAP_GEN(dev, port_selection_cap)) return 0; err = mlx5_core_get_caps(dev, MLX5_CAP_PORT_SELECTION); if (err) return err; if (MLX5_CAP_PORT_SELECTION(dev, port_select_flow_table_bypass) || !MLX5_CAP_PORT_SELECTION_MAX(dev, port_select_flow_table_bypass)) return 0; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_PORT_SELECTION]->cur, MLX5_ST_SZ_BYTES(port_selection_cap)); MLX5_SET(port_selection_cap, set_hca_cap, port_select_flow_table_bypass, 1); err = set_caps(dev, set_ctx, MLX5_SET_HCA_CAP_OP_MODE_PORT_SELECTION); return err; } static int set_hca_cap(struct mlx5_core_dev *dev) { int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in); void *set_ctx; int err; set_ctx = kzalloc(set_sz, GFP_KERNEL); if (!set_ctx) return -ENOMEM; err = handle_hca_cap(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap failed\n"); goto out; } memset(set_ctx, 0, set_sz); err = handle_hca_cap_atomic(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap_atomic failed\n"); goto out; } memset(set_ctx, 0, set_sz); err = handle_hca_cap_odp(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap_odp failed\n"); goto out; } memset(set_ctx, 0, set_sz); err = handle_hca_cap_roce(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap_roce failed\n"); goto out; } memset(set_ctx, 0, set_sz); err = handle_hca_cap_2(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap_2 failed\n"); goto out; } memset(set_ctx, 0, set_sz); err = handle_hca_cap_port_selection(dev, set_ctx); if (err) { mlx5_core_err(dev, "handle_hca_cap_port_selection failed\n"); goto out; } out: kfree(set_ctx); return err; } static int set_hca_ctrl(struct mlx5_core_dev *dev) { struct mlx5_reg_host_endianness he_in; struct mlx5_reg_host_endianness he_out; int err; if (!mlx5_core_is_pf(dev)) return 0; memset(&he_in, 0, sizeof(he_in)); he_in.he = MLX5_SET_HOST_ENDIANNESS; err = mlx5_core_access_reg(dev, &he_in, sizeof(he_in), &he_out, sizeof(he_out), MLX5_REG_HOST_ENDIANNESS, 0, 1); return err; } static int mlx5_core_set_hca_defaults(struct mlx5_core_dev *dev) { int ret = 0; /* Disable local_lb by default */ if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH) ret = mlx5_nic_vport_update_local_lb(dev, false); return ret; } int mlx5_core_enable_hca(struct mlx5_core_dev *dev, u16 func_id) { u32 in[MLX5_ST_SZ_DW(enable_hca_in)] = {}; MLX5_SET(enable_hca_in, in, opcode, MLX5_CMD_OP_ENABLE_HCA); MLX5_SET(enable_hca_in, in, function_id, func_id); MLX5_SET(enable_hca_in, in, embedded_cpu_function, dev->caps.embedded_cpu); return mlx5_cmd_exec_in(dev, enable_hca, in); } int mlx5_core_disable_hca(struct mlx5_core_dev *dev, u16 func_id) { u32 in[MLX5_ST_SZ_DW(disable_hca_in)] = {}; MLX5_SET(disable_hca_in, in, opcode, MLX5_CMD_OP_DISABLE_HCA); MLX5_SET(disable_hca_in, in, function_id, func_id); MLX5_SET(enable_hca_in, in, embedded_cpu_function, dev->caps.embedded_cpu); return mlx5_cmd_exec_in(dev, disable_hca, in); } static int mlx5_core_set_issi(struct mlx5_core_dev *dev) { u32 query_out[MLX5_ST_SZ_DW(query_issi_out)] = {}; u32 query_in[MLX5_ST_SZ_DW(query_issi_in)] = {}; u32 sup_issi; int err; MLX5_SET(query_issi_in, query_in, opcode, MLX5_CMD_OP_QUERY_ISSI); err = mlx5_cmd_exec_inout(dev, query_issi, query_in, query_out); if (err) { u32 syndrome = MLX5_GET(query_issi_out, query_out, syndrome); u8 status = MLX5_GET(query_issi_out, query_out, status); if (!status || syndrome == MLX5_DRIVER_SYND) { mlx5_core_err(dev, "Failed to query ISSI err(%d) status(%d) synd(%d)\n", err, status, syndrome); return err; } mlx5_core_warn(dev, "Query ISSI is not supported by FW, ISSI is 0\n"); dev->issi = 0; return 0; } sup_issi = MLX5_GET(query_issi_out, query_out, supported_issi_dw0); if (sup_issi & (1 << 1)) { u32 set_in[MLX5_ST_SZ_DW(set_issi_in)] = {}; MLX5_SET(set_issi_in, set_in, opcode, MLX5_CMD_OP_SET_ISSI); MLX5_SET(set_issi_in, set_in, current_issi, 1); err = mlx5_cmd_exec_in(dev, set_issi, set_in); if (err) { mlx5_core_err(dev, "Failed to set ISSI to 1 err(%d)\n", err); return err; } dev->issi = 1; return 0; } else if (sup_issi & (1 << 0) || !sup_issi) { return 0; } return -EOPNOTSUPP; } static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev, const struct pci_device_id *id) { int err = 0; mutex_init(&dev->pci_status_mutex); pci_set_drvdata(dev->pdev, dev); dev->bar_addr = pci_resource_start(pdev, 0); err = mlx5_pci_enable_device(dev); if (err) { mlx5_core_err(dev, "Cannot enable PCI device, aborting\n"); return err; } err = request_bar(pdev); if (err) { mlx5_core_err(dev, "error requesting BARs, aborting\n"); goto err_disable; } pci_set_master(pdev); err = set_dma_caps(pdev); if (err) { mlx5_core_err(dev, "Failed setting DMA capabilities mask, aborting\n"); goto err_clr_master; } if (pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP32) && pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP64) && pci_enable_atomic_ops_to_root(pdev, PCI_EXP_DEVCAP2_ATOMIC_COMP128)) mlx5_core_dbg(dev, "Enabling pci atomics failed\n"); dev->iseg_base = dev->bar_addr; dev->iseg = ioremap(dev->iseg_base, sizeof(*dev->iseg)); if (!dev->iseg) { err = -ENOMEM; mlx5_core_err(dev, "Failed mapping initialization segment, aborting\n"); goto err_clr_master; } mlx5_pci_vsc_init(dev); dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev); return 0; err_clr_master: pci_clear_master(dev->pdev); release_bar(dev->pdev); err_disable: mlx5_pci_disable_device(dev); return err; } static void mlx5_pci_close(struct mlx5_core_dev *dev) { /* health work might still be active, and it needs pci bar in * order to know the NIC state. Therefore, drain the health WQ * before removing the pci bars */ mlx5_drain_health_wq(dev); iounmap(dev->iseg); pci_clear_master(dev->pdev); release_bar(dev->pdev); mlx5_pci_disable_device(dev); } static int mlx5_init_once(struct mlx5_core_dev *dev) { int err; dev->priv.devcom = mlx5_devcom_register_device(dev); if (IS_ERR(dev->priv.devcom)) mlx5_core_err(dev, "failed to register with devcom (0x%p)\n", dev->priv.devcom); err = mlx5_query_board_id(dev); if (err) { mlx5_core_err(dev, "query board id failed\n"); goto err_devcom; } err = mlx5_irq_table_init(dev); if (err) { mlx5_core_err(dev, "failed to initialize irq table\n"); goto err_devcom; } err = mlx5_eq_table_init(dev); if (err) { mlx5_core_err(dev, "failed to initialize eq\n"); goto err_irq_cleanup; } err = mlx5_events_init(dev); if (err) { mlx5_core_err(dev, "failed to initialize events\n"); goto err_eq_cleanup; } err = mlx5_fw_reset_init(dev); if (err) { mlx5_core_err(dev, "failed to initialize fw reset events\n"); goto err_events_cleanup; } mlx5_cq_debugfs_init(dev); mlx5_init_reserved_gids(dev); mlx5_init_clock(dev); dev->vxlan = mlx5_vxlan_create(dev); dev->geneve = mlx5_geneve_create(dev); err = mlx5_init_rl_table(dev); if (err) { mlx5_core_err(dev, "Failed to init rate limiting\n"); goto err_tables_cleanup; } err = mlx5_mpfs_init(dev); if (err) { mlx5_core_err(dev, "Failed to init l2 table %d\n", err); goto err_rl_cleanup; } err = mlx5_sriov_init(dev); if (err) { mlx5_core_err(dev, "Failed to init sriov %d\n", err); goto err_mpfs_cleanup; } err = mlx5_eswitch_init(dev); if (err) { mlx5_core_err(dev, "Failed to init eswitch %d\n", err); goto err_sriov_cleanup; } err = mlx5_fpga_init(dev); if (err) { mlx5_core_err(dev, "Failed to init fpga device %d\n", err); goto err_eswitch_cleanup; } err = mlx5_vhca_event_init(dev); if (err) { mlx5_core_err(dev, "Failed to init vhca event notifier %d\n", err); goto err_fpga_cleanup; } err = mlx5_sf_hw_table_init(dev); if (err) { mlx5_core_err(dev, "Failed to init SF HW table %d\n", err); goto err_sf_hw_table_cleanup; } err = mlx5_sf_table_init(dev); if (err) { mlx5_core_err(dev, "Failed to init SF table %d\n", err); goto err_sf_table_cleanup; } err = mlx5_fs_core_alloc(dev); if (err) { mlx5_core_err(dev, "Failed to alloc flow steering\n"); goto err_fs; } dev->dm = mlx5_dm_create(dev); if (IS_ERR(dev->dm)) mlx5_core_warn(dev, "Failed to init device memory%d\n", err); dev->tracer = mlx5_fw_tracer_create(dev); dev->hv_vhca = mlx5_hv_vhca_create(dev); dev->rsc_dump = mlx5_rsc_dump_create(dev); return 0; err_fs: mlx5_sf_table_cleanup(dev); err_sf_table_cleanup: mlx5_sf_hw_table_cleanup(dev); err_sf_hw_table_cleanup: mlx5_vhca_event_cleanup(dev); err_fpga_cleanup: mlx5_fpga_cleanup(dev); err_eswitch_cleanup: mlx5_eswitch_cleanup(dev->priv.eswitch); err_sriov_cleanup: mlx5_sriov_cleanup(dev); err_mpfs_cleanup: mlx5_mpfs_cleanup(dev); err_rl_cleanup: mlx5_cleanup_rl_table(dev); err_tables_cleanup: mlx5_geneve_destroy(dev->geneve); mlx5_vxlan_destroy(dev->vxlan); mlx5_cq_debugfs_cleanup(dev); mlx5_fw_reset_cleanup(dev); err_events_cleanup: mlx5_events_cleanup(dev); err_eq_cleanup: mlx5_eq_table_cleanup(dev); err_irq_cleanup: mlx5_irq_table_cleanup(dev); err_devcom: mlx5_devcom_unregister_device(dev->priv.devcom); return err; } static void mlx5_cleanup_once(struct mlx5_core_dev *dev) { mlx5_rsc_dump_destroy(dev); mlx5_hv_vhca_destroy(dev->hv_vhca); mlx5_fw_tracer_destroy(dev->tracer); mlx5_dm_cleanup(dev); mlx5_fs_core_free(dev); mlx5_sf_table_cleanup(dev); mlx5_sf_hw_table_cleanup(dev); mlx5_vhca_event_cleanup(dev); mlx5_fpga_cleanup(dev); mlx5_eswitch_cleanup(dev->priv.eswitch); mlx5_sriov_cleanup(dev); mlx5_mpfs_cleanup(dev); mlx5_cleanup_rl_table(dev); mlx5_geneve_destroy(dev->geneve); mlx5_vxlan_destroy(dev->vxlan); mlx5_cleanup_clock(dev); mlx5_cleanup_reserved_gids(dev); mlx5_cq_debugfs_cleanup(dev); mlx5_fw_reset_cleanup(dev); mlx5_events_cleanup(dev); mlx5_eq_table_cleanup(dev); mlx5_irq_table_cleanup(dev); mlx5_devcom_unregister_device(dev->priv.devcom); } static int mlx5_function_setup(struct mlx5_core_dev *dev, bool boot, u64 timeout) { int err; mlx5_core_info(dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev), fw_rev_min(dev), fw_rev_sub(dev)); /* Only PFs hold the relevant PCIe information for this query */ if (mlx5_core_is_pf(dev)) pcie_print_link_status(dev->pdev); /* wait for firmware to accept initialization segments configurations */ err = wait_fw_init(dev, timeout, mlx5_tout_ms(dev, FW_PRE_INIT_WARN_MESSAGE_INTERVAL)); if (err) { mlx5_core_err(dev, "Firmware over %llu MS in pre-initializing state, aborting\n", timeout); return err; } err = mlx5_cmd_init(dev); if (err) { mlx5_core_err(dev, "Failed initializing command interface, aborting\n"); return err; } mlx5_tout_query_iseg(dev); err = wait_fw_init(dev, mlx5_tout_ms(dev, FW_INIT), 0); if (err) { mlx5_core_err(dev, "Firmware over %llu MS in initializing state, aborting\n", mlx5_tout_ms(dev, FW_INIT)); goto err_cmd_cleanup; } mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP); mlx5_start_health_poll(dev); err = mlx5_core_enable_hca(dev, 0); if (err) { mlx5_core_err(dev, "enable hca failed\n"); goto stop_health_poll; } err = mlx5_core_set_issi(dev); if (err) { mlx5_core_err(dev, "failed to set issi\n"); goto err_disable_hca; } err = mlx5_satisfy_startup_pages(dev, 1); if (err) { mlx5_core_err(dev, "failed to allocate boot pages\n"); goto err_disable_hca; } err = mlx5_tout_query_dtor(dev); if (err) { mlx5_core_err(dev, "failed to read dtor\n"); goto reclaim_boot_pages; } err = set_hca_ctrl(dev); if (err) { mlx5_core_err(dev, "set_hca_ctrl failed\n"); goto reclaim_boot_pages; } err = set_hca_cap(dev); if (err) { mlx5_core_err(dev, "set_hca_cap failed\n"); goto reclaim_boot_pages; } err = mlx5_satisfy_startup_pages(dev, 0); if (err) { mlx5_core_err(dev, "failed to allocate init pages\n"); goto reclaim_boot_pages; } err = mlx5_cmd_init_hca(dev, sw_owner_id); if (err) { mlx5_core_err(dev, "init hca failed\n"); goto reclaim_boot_pages; } mlx5_set_driver_version(dev); err = mlx5_query_hca_caps(dev); if (err) { mlx5_core_err(dev, "query hca failed\n"); goto reclaim_boot_pages; } mlx5_start_health_fw_log_up(dev); return 0; reclaim_boot_pages: mlx5_reclaim_startup_pages(dev); err_disable_hca: mlx5_core_disable_hca(dev, 0); stop_health_poll: mlx5_stop_health_poll(dev, boot); err_cmd_cleanup: mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN); mlx5_cmd_cleanup(dev); return err; } static int mlx5_function_teardown(struct mlx5_core_dev *dev, bool boot) { int err; err = mlx5_cmd_teardown_hca(dev); if (err) { mlx5_core_err(dev, "tear_down_hca failed, skip cleanup\n"); return err; } mlx5_reclaim_startup_pages(dev); mlx5_core_disable_hca(dev, 0); mlx5_stop_health_poll(dev, boot); mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN); mlx5_cmd_cleanup(dev); return 0; } static int mlx5_load(struct mlx5_core_dev *dev) { int err; dev->priv.uar = mlx5_get_uars_page(dev); if (IS_ERR(dev->priv.uar)) { mlx5_core_err(dev, "Failed allocating uar, aborting\n"); err = PTR_ERR(dev->priv.uar); return err; } mlx5_events_start(dev); mlx5_pagealloc_start(dev); err = mlx5_irq_table_create(dev); if (err) { mlx5_core_err(dev, "Failed to alloc IRQs\n"); goto err_irq_table; } err = mlx5_eq_table_create(dev); if (err) { mlx5_core_err(dev, "Failed to create EQs\n"); goto err_eq_table; } err = mlx5_fw_tracer_init(dev->tracer); if (err) { mlx5_core_err(dev, "Failed to init FW tracer %d\n", err); mlx5_fw_tracer_destroy(dev->tracer); dev->tracer = NULL; } mlx5_fw_reset_events_start(dev); mlx5_hv_vhca_init(dev->hv_vhca); err = mlx5_rsc_dump_init(dev); if (err) { mlx5_core_err(dev, "Failed to init Resource dump %d\n", err); mlx5_rsc_dump_destroy(dev); dev->rsc_dump = NULL; } err = mlx5_fpga_device_start(dev); if (err) { mlx5_core_err(dev, "fpga device start failed %d\n", err); goto err_fpga_start; } err = mlx5_fs_core_init(dev); if (err) { mlx5_core_err(dev, "Failed to init flow steering\n"); goto err_fs; } err = mlx5_core_set_hca_defaults(dev); if (err) { mlx5_core_err(dev, "Failed to set hca defaults\n"); goto err_set_hca; } mlx5_vhca_event_start(dev); err = mlx5_sf_hw_table_create(dev); if (err) { mlx5_core_err(dev, "sf table create failed %d\n", err); goto err_vhca; } err = mlx5_ec_init(dev); if (err) { mlx5_core_err(dev, "Failed to init embedded CPU\n"); goto err_ec; } mlx5_lag_add_mdev(dev); err = mlx5_sriov_attach(dev); if (err) { mlx5_core_err(dev, "sriov init failed %d\n", err); goto err_sriov; } mlx5_sf_dev_table_create(dev); return 0; err_sriov: mlx5_lag_remove_mdev(dev); mlx5_ec_cleanup(dev); err_ec: mlx5_sf_hw_table_destroy(dev); err_vhca: mlx5_vhca_event_stop(dev); err_set_hca: mlx5_fs_core_cleanup(dev); err_fs: mlx5_fpga_device_stop(dev); err_fpga_start: mlx5_rsc_dump_cleanup(dev); mlx5_hv_vhca_cleanup(dev->hv_vhca); mlx5_fw_reset_events_stop(dev); mlx5_fw_tracer_cleanup(dev->tracer); mlx5_eq_table_destroy(dev); err_eq_table: mlx5_irq_table_destroy(dev); err_irq_table: mlx5_pagealloc_stop(dev); mlx5_events_stop(dev); mlx5_put_uars_page(dev, dev->priv.uar); return err; } static void mlx5_unload(struct mlx5_core_dev *dev) { mlx5_sf_dev_table_destroy(dev); mlx5_sriov_detach(dev); mlx5_eswitch_disable(dev->priv.eswitch); mlx5_lag_remove_mdev(dev); mlx5_ec_cleanup(dev); mlx5_sf_hw_table_destroy(dev); mlx5_vhca_event_stop(dev); mlx5_fs_core_cleanup(dev); mlx5_fpga_device_stop(dev); mlx5_rsc_dump_cleanup(dev); mlx5_hv_vhca_cleanup(dev->hv_vhca); mlx5_fw_reset_events_stop(dev); mlx5_fw_tracer_cleanup(dev->tracer); mlx5_eq_table_destroy(dev); mlx5_irq_table_destroy(dev); mlx5_pagealloc_stop(dev); mlx5_events_stop(dev); mlx5_put_uars_page(dev, dev->priv.uar); } int mlx5_init_one(struct mlx5_core_dev *dev) { struct devlink *devlink = priv_to_devlink(dev); int err = 0; devl_lock(devlink); mutex_lock(&dev->intf_state_mutex); dev->state = MLX5_DEVICE_STATE_UP; err = mlx5_function_setup(dev, true, mlx5_tout_ms(dev, FW_PRE_INIT_TIMEOUT)); if (err) goto err_function; err = mlx5_init_once(dev); if (err) { mlx5_core_err(dev, "sw objs init failed\n"); goto function_teardown; } err = mlx5_load(dev); if (err) goto err_load; set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); err = mlx5_devlink_register(priv_to_devlink(dev)); if (err) goto err_devlink_reg; err = mlx5_register_device(dev); if (err) goto err_register; mutex_unlock(&dev->intf_state_mutex); devl_unlock(devlink); return 0; err_register: mlx5_devlink_unregister(priv_to_devlink(dev)); err_devlink_reg: clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); mlx5_unload(dev); err_load: mlx5_cleanup_once(dev); function_teardown: mlx5_function_teardown(dev, true); err_function: dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR; mutex_unlock(&dev->intf_state_mutex); devl_unlock(devlink); return err; } void mlx5_uninit_one(struct mlx5_core_dev *dev) { struct devlink *devlink = priv_to_devlink(dev); devl_lock(devlink); mutex_lock(&dev->intf_state_mutex); mlx5_unregister_device(dev); mlx5_devlink_unregister(priv_to_devlink(dev)); if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) { mlx5_core_warn(dev, "%s: interface is down, NOP\n", __func__); mlx5_cleanup_once(dev); goto out; } clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); mlx5_unload(dev); mlx5_cleanup_once(dev); mlx5_function_teardown(dev, true); out: mutex_unlock(&dev->intf_state_mutex); devl_unlock(devlink); } int mlx5_load_one_devl_locked(struct mlx5_core_dev *dev, bool recovery) { int err = 0; u64 timeout; devl_assert_locked(priv_to_devlink(dev)); mutex_lock(&dev->intf_state_mutex); if (test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) { mlx5_core_warn(dev, "interface is up, NOP\n"); goto out; } /* remove any previous indication of internal error */ dev->state = MLX5_DEVICE_STATE_UP; if (recovery) timeout = mlx5_tout_ms(dev, FW_PRE_INIT_ON_RECOVERY_TIMEOUT); else timeout = mlx5_tout_ms(dev, FW_PRE_INIT_TIMEOUT); err = mlx5_function_setup(dev, false, timeout); if (err) goto err_function; err = mlx5_load(dev); if (err) goto err_load; set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); err = mlx5_attach_device(dev); if (err) goto err_attach; mutex_unlock(&dev->intf_state_mutex); return 0; err_attach: clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); mlx5_unload(dev); err_load: mlx5_function_teardown(dev, false); err_function: dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR; out: mutex_unlock(&dev->intf_state_mutex); return err; } int mlx5_load_one(struct mlx5_core_dev *dev, bool recovery) { struct devlink *devlink = priv_to_devlink(dev); int ret; devl_lock(devlink); ret = mlx5_load_one_devl_locked(dev, recovery); devl_unlock(devlink); return ret; } void mlx5_unload_one_devl_locked(struct mlx5_core_dev *dev) { devl_assert_locked(priv_to_devlink(dev)); mutex_lock(&dev->intf_state_mutex); mlx5_detach_device(dev); if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) { mlx5_core_warn(dev, "%s: interface is down, NOP\n", __func__); goto out; } clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); mlx5_unload(dev); mlx5_function_teardown(dev, false); out: mutex_unlock(&dev->intf_state_mutex); } void mlx5_unload_one(struct mlx5_core_dev *dev) { struct devlink *devlink = priv_to_devlink(dev); devl_lock(devlink); mlx5_unload_one_devl_locked(dev); devl_unlock(devlink); } static const int types[] = { MLX5_CAP_GENERAL, MLX5_CAP_GENERAL_2, MLX5_CAP_ETHERNET_OFFLOADS, MLX5_CAP_IPOIB_ENHANCED_OFFLOADS, MLX5_CAP_ODP, MLX5_CAP_ATOMIC, MLX5_CAP_ROCE, MLX5_CAP_IPOIB_OFFLOADS, MLX5_CAP_FLOW_TABLE, MLX5_CAP_ESWITCH_FLOW_TABLE, MLX5_CAP_ESWITCH, MLX5_CAP_VECTOR_CALC, MLX5_CAP_QOS, MLX5_CAP_DEBUG, MLX5_CAP_DEV_MEM, MLX5_CAP_DEV_EVENT, MLX5_CAP_TLS, MLX5_CAP_VDPA_EMULATION, MLX5_CAP_IPSEC, MLX5_CAP_PORT_SELECTION, MLX5_CAP_DEV_SHAMPO, MLX5_CAP_MACSEC, MLX5_CAP_ADV_VIRTUALIZATION, }; static void mlx5_hca_caps_free(struct mlx5_core_dev *dev) { int type; int i; for (i = 0; i < ARRAY_SIZE(types); i++) { type = types[i]; kfree(dev->caps.hca[type]); } } static int mlx5_hca_caps_alloc(struct mlx5_core_dev *dev) { struct mlx5_hca_cap *cap; int type; int i; for (i = 0; i < ARRAY_SIZE(types); i++) { cap = kzalloc(sizeof(*cap), GFP_KERNEL); if (!cap) goto err; type = types[i]; dev->caps.hca[type] = cap; } return 0; err: mlx5_hca_caps_free(dev); return -ENOMEM; } int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx) { struct mlx5_priv *priv = &dev->priv; int err; memcpy(&dev->profile, &profile[profile_idx], sizeof(dev->profile)); INIT_LIST_HEAD(&priv->ctx_list); spin_lock_init(&priv->ctx_lock); lockdep_register_key(&dev->lock_key); mutex_init(&dev->intf_state_mutex); lockdep_set_class(&dev->intf_state_mutex, &dev->lock_key); mutex_init(&priv->bfregs.reg_head.lock); mutex_init(&priv->bfregs.wc_head.lock); INIT_LIST_HEAD(&priv->bfregs.reg_head.list); INIT_LIST_HEAD(&priv->bfregs.wc_head.list); mutex_init(&priv->alloc_mutex); mutex_init(&priv->pgdir_mutex); INIT_LIST_HEAD(&priv->pgdir_list); priv->numa_node = dev_to_node(mlx5_core_dma_dev(dev)); priv->dbg.dbg_root = debugfs_create_dir(dev_name(dev->device), mlx5_debugfs_root); INIT_LIST_HEAD(&priv->traps); err = mlx5_tout_init(dev); if (err) { mlx5_core_err(dev, "Failed initializing timeouts, aborting\n"); goto err_timeout_init; } err = mlx5_health_init(dev); if (err) goto err_health_init; err = mlx5_pagealloc_init(dev); if (err) goto err_pagealloc_init; err = mlx5_adev_init(dev); if (err) goto err_adev_init; err = mlx5_hca_caps_alloc(dev); if (err) goto err_hca_caps; /* The conjunction of sw_vhca_id with sw_owner_id will be a global * unique id per function which uses mlx5_core. * Those values are supplied to FW as part of the init HCA command to * be used by both driver and FW when it's applicable. */ dev->priv.sw_vhca_id = ida_alloc_range(&sw_vhca_ida, 1, MAX_SW_VHCA_ID, GFP_KERNEL); if (dev->priv.sw_vhca_id < 0) mlx5_core_err(dev, "failed to allocate sw_vhca_id, err=%d\n", dev->priv.sw_vhca_id); return 0; err_hca_caps: mlx5_adev_cleanup(dev); err_adev_init: mlx5_pagealloc_cleanup(dev); err_pagealloc_init: mlx5_health_cleanup(dev); err_health_init: mlx5_tout_cleanup(dev); err_timeout_init: debugfs_remove(dev->priv.dbg.dbg_root); mutex_destroy(&priv->pgdir_mutex); mutex_destroy(&priv->alloc_mutex); mutex_destroy(&priv->bfregs.wc_head.lock); mutex_destroy(&priv->bfregs.reg_head.lock); mutex_destroy(&dev->intf_state_mutex); lockdep_unregister_key(&dev->lock_key); return err; } void mlx5_mdev_uninit(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; if (priv->sw_vhca_id > 0) ida_free(&sw_vhca_ida, dev->priv.sw_vhca_id); mlx5_hca_caps_free(dev); mlx5_adev_cleanup(dev); mlx5_pagealloc_cleanup(dev); mlx5_health_cleanup(dev); mlx5_tout_cleanup(dev); debugfs_remove_recursive(dev->priv.dbg.dbg_root); mutex_destroy(&priv->pgdir_mutex); mutex_destroy(&priv->alloc_mutex); mutex_destroy(&priv->bfregs.wc_head.lock); mutex_destroy(&priv->bfregs.reg_head.lock); mutex_destroy(&dev->intf_state_mutex); lockdep_unregister_key(&dev->lock_key); } static int probe_one(struct pci_dev *pdev, const struct pci_device_id *id) { struct mlx5_core_dev *dev; struct devlink *devlink; int err; devlink = mlx5_devlink_alloc(&pdev->dev); if (!devlink) { dev_err(&pdev->dev, "devlink alloc failed\n"); return -ENOMEM; } dev = devlink_priv(devlink); dev->device = &pdev->dev; dev->pdev = pdev; dev->coredev_type = id->driver_data & MLX5_PCI_DEV_IS_VF ? MLX5_COREDEV_VF : MLX5_COREDEV_PF; dev->priv.adev_idx = mlx5_adev_idx_alloc(); if (dev->priv.adev_idx < 0) { err = dev->priv.adev_idx; goto adev_init_err; } err = mlx5_mdev_init(dev, prof_sel); if (err) goto mdev_init_err; err = mlx5_pci_init(dev, pdev, id); if (err) { mlx5_core_err(dev, "mlx5_pci_init failed with error code %d\n", err); goto pci_init_err; } err = mlx5_init_one(dev); if (err) { mlx5_core_err(dev, "mlx5_init_one failed with error code %d\n", err); goto err_init_one; } err = mlx5_crdump_enable(dev); if (err) dev_err(&pdev->dev, "mlx5_crdump_enable failed with error code %d\n", err); pci_save_state(pdev); devlink_register(devlink); return 0; err_init_one: mlx5_pci_close(dev); pci_init_err: mlx5_mdev_uninit(dev); mdev_init_err: mlx5_adev_idx_free(dev->priv.adev_idx); adev_init_err: mlx5_devlink_free(devlink); return err; } static void remove_one(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct devlink *devlink = priv_to_devlink(dev); /* mlx5_drain_fw_reset() is using devlink APIs. Hence, we must drain * fw_reset before unregistering the devlink. */ mlx5_drain_fw_reset(dev); set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state); devlink_unregister(devlink); mlx5_sriov_disable(pdev); mlx5_crdump_disable(dev); mlx5_drain_health_wq(dev); mlx5_uninit_one(dev); mlx5_pci_close(dev); mlx5_mdev_uninit(dev); mlx5_adev_idx_free(dev->priv.adev_idx); mlx5_devlink_free(devlink); } #define mlx5_pci_trace(dev, fmt, ...) ({ \ struct mlx5_core_dev *__dev = (dev); \ mlx5_core_info(__dev, "%s Device state = %d health sensors: %d pci_status: %d. " fmt, \ __func__, __dev->state, mlx5_health_check_fatal_sensors(__dev), \ __dev->pci_status, ##__VA_ARGS__); \ }) static const char *result2str(enum pci_ers_result result) { return result == PCI_ERS_RESULT_NEED_RESET ? "need reset" : result == PCI_ERS_RESULT_DISCONNECT ? "disconnect" : result == PCI_ERS_RESULT_RECOVERED ? "recovered" : "unknown"; } static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t state) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); enum pci_ers_result res; mlx5_pci_trace(dev, "Enter, pci channel state = %d\n", state); mlx5_enter_error_state(dev, false); mlx5_error_sw_reset(dev); mlx5_unload_one(dev); mlx5_drain_health_wq(dev); mlx5_pci_disable_device(dev); res = state == pci_channel_io_perm_failure ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, result = %d, %s\n", __func__, dev->state, dev->pci_status, res, result2str(res)); return res; } /* wait for the device to show vital signs by waiting * for the health counter to start counting. */ static int wait_vital(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct mlx5_core_health *health = &dev->priv.health; const int niter = 100; u32 last_count = 0; u32 count; int i; for (i = 0; i < niter; i++) { count = ioread32be(health->health_counter); if (count && count != 0xffffffff) { if (last_count && last_count != count) { mlx5_core_info(dev, "wait vital counter value 0x%x after %d iterations\n", count, i); return 0; } last_count = count; } msleep(50); } return -ETIMEDOUT; } static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev) { enum pci_ers_result res = PCI_ERS_RESULT_DISCONNECT; struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err; mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Enter\n", __func__, dev->state, dev->pci_status); err = mlx5_pci_enable_device(dev); if (err) { mlx5_core_err(dev, "%s: mlx5_pci_enable_device failed with error code: %d\n", __func__, err); goto out; } pci_set_master(pdev); pci_restore_state(pdev); pci_save_state(pdev); err = wait_vital(pdev); if (err) { mlx5_core_err(dev, "%s: wait vital failed with error code: %d\n", __func__, err); goto out; } res = PCI_ERS_RESULT_RECOVERED; out: mlx5_core_info(dev, "%s Device state = %d pci_status: %d. Exit, err = %d, result = %d, %s\n", __func__, dev->state, dev->pci_status, err, res, result2str(res)); return res; } static void mlx5_pci_resume(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err; mlx5_pci_trace(dev, "Enter, loading driver..\n"); err = mlx5_load_one(dev, false); if (!err) devlink_health_reporter_state_update(dev->priv.health.fw_fatal_reporter, DEVLINK_HEALTH_REPORTER_STATE_HEALTHY); mlx5_pci_trace(dev, "Done, err = %d, device %s\n", err, !err ? "recovered" : "Failed"); } static const struct pci_error_handlers mlx5_err_handler = { .error_detected = mlx5_pci_err_detected, .slot_reset = mlx5_pci_slot_reset, .resume = mlx5_pci_resume }; static int mlx5_try_fast_unload(struct mlx5_core_dev *dev) { bool fast_teardown = false, force_teardown = false; int ret = 1; fast_teardown = MLX5_CAP_GEN(dev, fast_teardown); force_teardown = MLX5_CAP_GEN(dev, force_teardown); mlx5_core_dbg(dev, "force teardown firmware support=%d\n", force_teardown); mlx5_core_dbg(dev, "fast teardown firmware support=%d\n", fast_teardown); if (!fast_teardown && !force_teardown) return -EOPNOTSUPP; if (dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) { mlx5_core_dbg(dev, "Device in internal error state, giving up\n"); return -EAGAIN; } /* Panic tear down fw command will stop the PCI bus communication * with the HCA, so the health poll is no longer needed. */ mlx5_drain_health_wq(dev); mlx5_stop_health_poll(dev, false); ret = mlx5_cmd_fast_teardown_hca(dev); if (!ret) goto succeed; ret = mlx5_cmd_force_teardown_hca(dev); if (!ret) goto succeed; mlx5_core_dbg(dev, "Firmware couldn't do fast unload error: %d\n", ret); mlx5_start_health_poll(dev); return ret; succeed: mlx5_enter_error_state(dev, true); /* Some platforms requiring freeing the IRQ's in the shutdown * flow. If they aren't freed they can't be allocated after * kexec. There is no need to cleanup the mlx5_core software * contexts. */ mlx5_core_eq_free_irqs(dev); return 0; } static void shutdown(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err; mlx5_core_info(dev, "Shutdown was called\n"); set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state); err = mlx5_try_fast_unload(dev); if (err) mlx5_unload_one(dev); mlx5_pci_disable_device(dev); } static int mlx5_suspend(struct pci_dev *pdev, pm_message_t state) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); mlx5_unload_one(dev); return 0; } static int mlx5_resume(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); return mlx5_load_one(dev, false); } static const struct pci_device_id mlx5_core_pci_table[] = { { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTIB) }, { PCI_VDEVICE(MELLANOX, 0x1012), MLX5_PCI_DEV_IS_VF}, /* Connect-IB VF */ { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4) }, { PCI_VDEVICE(MELLANOX, 0x1014), MLX5_PCI_DEV_IS_VF}, /* ConnectX-4 VF */ { PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX) }, { PCI_VDEVICE(MELLANOX, 0x1016), MLX5_PCI_DEV_IS_VF}, /* ConnectX-4LX VF */ { PCI_VDEVICE(MELLANOX, 0x1017) }, /* ConnectX-5, PCIe 3.0 */ { PCI_VDEVICE(MELLANOX, 0x1018), MLX5_PCI_DEV_IS_VF}, /* ConnectX-5 VF */ { PCI_VDEVICE(MELLANOX, 0x1019) }, /* ConnectX-5 Ex */ { PCI_VDEVICE(MELLANOX, 0x101a), MLX5_PCI_DEV_IS_VF}, /* ConnectX-5 Ex VF */ { PCI_VDEVICE(MELLANOX, 0x101b) }, /* ConnectX-6 */ { PCI_VDEVICE(MELLANOX, 0x101c), MLX5_PCI_DEV_IS_VF}, /* ConnectX-6 VF */ { PCI_VDEVICE(MELLANOX, 0x101d) }, /* ConnectX-6 Dx */ { PCI_VDEVICE(MELLANOX, 0x101e), MLX5_PCI_DEV_IS_VF}, /* ConnectX Family mlx5Gen Virtual Function */ { PCI_VDEVICE(MELLANOX, 0x101f) }, /* ConnectX-6 LX */ { PCI_VDEVICE(MELLANOX, 0x1021) }, /* ConnectX-7 */ { PCI_VDEVICE(MELLANOX, 0x1023) }, /* ConnectX-8 */ { PCI_VDEVICE(MELLANOX, 0xa2d2) }, /* BlueField integrated ConnectX-5 network controller */ { PCI_VDEVICE(MELLANOX, 0xa2d3), MLX5_PCI_DEV_IS_VF}, /* BlueField integrated ConnectX-5 network controller VF */ { PCI_VDEVICE(MELLANOX, 0xa2d6) }, /* BlueField-2 integrated ConnectX-6 Dx network controller */ { PCI_VDEVICE(MELLANOX, 0xa2dc) }, /* BlueField-3 integrated ConnectX-7 network controller */ { PCI_VDEVICE(MELLANOX, 0xa2df) }, /* BlueField-4 integrated ConnectX-8 network controller */ { 0, } }; MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table); void mlx5_disable_device(struct mlx5_core_dev *dev) { mlx5_error_sw_reset(dev); mlx5_unload_one_devl_locked(dev); } int mlx5_recover_device(struct mlx5_core_dev *dev) { if (!mlx5_core_is_sf(dev)) { mlx5_pci_disable_device(dev); if (mlx5_pci_slot_reset(dev->pdev) != PCI_ERS_RESULT_RECOVERED) return -EIO; } return mlx5_load_one_devl_locked(dev, true); } static struct pci_driver mlx5_core_driver = { .name = KBUILD_MODNAME, .id_table = mlx5_core_pci_table, .probe = probe_one, .remove = remove_one, .suspend = mlx5_suspend, .resume = mlx5_resume, .shutdown = shutdown, .err_handler = &mlx5_err_handler, .sriov_configure = mlx5_core_sriov_configure, .sriov_get_vf_total_msix = mlx5_sriov_get_vf_total_msix, .sriov_set_msix_vec_count = mlx5_core_sriov_set_msix_vec_count, }; /** * mlx5_vf_get_core_dev - Get the mlx5 core device from a given VF PCI device if * mlx5_core is its driver. * @pdev: The associated PCI device. * * Upon return the interface state lock stay held to let caller uses it safely. * Caller must ensure to use the returned mlx5 device for a narrow window * and put it back with mlx5_vf_put_core_dev() immediately once usage was over. * * Return: Pointer to the associated mlx5_core_dev or NULL. */ struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev) { struct mlx5_core_dev *mdev; mdev = pci_iov_get_pf_drvdata(pdev, &mlx5_core_driver); if (IS_ERR(mdev)) return NULL; mutex_lock(&mdev->intf_state_mutex); if (!test_bit(MLX5_INTERFACE_STATE_UP, &mdev->intf_state)) { mutex_unlock(&mdev->intf_state_mutex); return NULL; } return mdev; } EXPORT_SYMBOL(mlx5_vf_get_core_dev); /** * mlx5_vf_put_core_dev - Put the mlx5 core device back. * @mdev: The mlx5 core device. * * Upon return the interface state lock is unlocked and caller should not * access the mdev any more. */ void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev) { mutex_unlock(&mdev->intf_state_mutex); } EXPORT_SYMBOL(mlx5_vf_put_core_dev); static void mlx5_core_verify_params(void) { if (prof_sel >= ARRAY_SIZE(profile)) { pr_warn("mlx5_core: WARNING: Invalid module parameter prof_sel %d, valid range 0-%zu, changing back to default(%d)\n", prof_sel, ARRAY_SIZE(profile) - 1, MLX5_DEFAULT_PROF); prof_sel = MLX5_DEFAULT_PROF; } } static int __init init(void) { int err; WARN_ONCE(strcmp(MLX5_ADEV_NAME, KBUILD_MODNAME), "mlx5_core name not in sync with kernel module name"); get_random_bytes(&sw_owner_id, sizeof(sw_owner_id)); mlx5_core_verify_params(); mlx5_register_debugfs(); err = pci_register_driver(&mlx5_core_driver); if (err) goto err_debug; err = mlx5_sf_driver_register(); if (err) goto err_sf; err = mlx5e_init(); if (err) goto err_en; return 0; err_en: mlx5_sf_driver_unregister(); err_sf: pci_unregister_driver(&mlx5_core_driver); err_debug: mlx5_unregister_debugfs(); return err; } static void __exit cleanup(void) { mlx5e_cleanup(); mlx5_sf_driver_unregister(); pci_unregister_driver(&mlx5_core_driver); mlx5_unregister_debugfs(); } module_init(init); module_exit(cleanup);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1