/*- * Copyright (c) 2013-2019, Mellanox Technologies, Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mlx5_core.h" #include "eswitch.h" #include "fs_core.h" #ifdef PCI_IOV #include #include #include #endif static const char mlx5_version[] = "Mellanox Core driver " DRIVER_VERSION " (" DRIVER_RELDATE ")"; MODULE_AUTHOR("Eli Cohen "); MODULE_DESCRIPTION("Mellanox Connect-IB, ConnectX-4 core driver"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_DEPEND(mlx5, linuxkpi, 1, 1, 1); MODULE_DEPEND(mlx5, mlxfw, 1, 1, 1); MODULE_DEPEND(mlx5, firmware, 1, 1, 1); MODULE_VERSION(mlx5, 1); SYSCTL_NODE(_hw, OID_AUTO, mlx5, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, "mlx5 hardware controls"); int mlx5_core_debug_mask; SYSCTL_INT(_hw_mlx5, OID_AUTO, debug_mask, CTLFLAG_RWTUN, &mlx5_core_debug_mask, 0, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0"); #define MLX5_DEFAULT_PROF 2 static int mlx5_prof_sel = MLX5_DEFAULT_PROF; SYSCTL_INT(_hw_mlx5, OID_AUTO, prof_sel, CTLFLAG_RWTUN, &mlx5_prof_sel, 0, "profile selector. Valid range 0 - 2"); static int mlx5_fast_unload_enabled = 1; SYSCTL_INT(_hw_mlx5, OID_AUTO, fast_unload_enabled, CTLFLAG_RWTUN, &mlx5_fast_unload_enabled, 0, "Set to enable fast unload. Clear to disable."); #define NUMA_NO_NODE -1 static LIST_HEAD(intf_list); static LIST_HEAD(dev_list); static DEFINE_MUTEX(intf_mutex); struct mlx5_device_context { struct list_head list; struct mlx5_interface *intf; void *context; }; enum { MLX5_ATOMIC_REQ_MODE_BE = 0x0, MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS = 0x1, }; static struct mlx5_profile profiles[] = { [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 = 17, .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 }, }, [3] = { .mask = MLX5_PROF_MASK_QP_SIZE, .log_max_qp = 17, }, }; #ifdef PCI_IOV static const char iov_mac_addr_name[] = "mac-addr"; static const char iov_node_guid_name[] = "node-guid"; static const char iov_port_guid_name[] = "port-guid"; #endif static int set_dma_caps(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err; err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); if (err) { mlx5_core_warn(dev, "couldn't set 64-bit PCI DMA mask\n"); err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { mlx5_core_err(dev, "Can't set PCI DMA mask, aborting\n"); return err; } } err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (err) { mlx5_core_warn(dev, "couldn't set 64-bit consistent PCI DMA mask\n"); err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { mlx5_core_err(dev, "Can't set consistent PCI DMA mask, aborting\n"); return err; } } dma_set_max_seg_size(&pdev->dev, 2u * 1024 * 1024 * 1024); return err; } int mlx5_pci_read_power_status(struct mlx5_core_dev *dev, u16 *p_power, u8 *p_status) { u32 in[MLX5_ST_SZ_DW(mpein_reg)] = {}; u32 out[MLX5_ST_SZ_DW(mpein_reg)] = {}; int err; err = mlx5_core_access_reg(dev, in, sizeof(in), out, sizeof(out), MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MPEIN, 0, 0); *p_status = MLX5_GET(mpein_reg, out, pwr_status); *p_power = MLX5_GET(mpein_reg, out, pci_power); 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) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err = 0; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { mlx5_core_err(dev, "Missing registers BAR, aborting\n"); return -ENODEV; } err = pci_request_regions(pdev, DRIVER_NAME); if (err) mlx5_core_err(dev, "Couldn't get PCI resources, aborting\n"); return err; } static void release_bar(struct pci_dev *pdev) { pci_release_regions(pdev); } static int mlx5_enable_msix(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; struct mlx5_eq_table *table = &priv->eq_table; int num_eqs = 1 << MLX5_CAP_GEN(dev, log_max_eq); int limit = dev->msix_eqvec; int nvec = MLX5_EQ_VEC_COMP_BASE; int i; if (limit > 0) nvec += limit; else nvec += MLX5_CAP_GEN(dev, num_ports) * num_online_cpus(); if (nvec > num_eqs) nvec = num_eqs; if (nvec > 256) nvec = 256; /* limit of firmware API */ if (nvec <= MLX5_EQ_VEC_COMP_BASE) return -ENOMEM; priv->msix_arr = kzalloc(nvec * sizeof(*priv->msix_arr), GFP_KERNEL); for (i = 0; i < nvec; i++) priv->msix_arr[i].entry = i; nvec = pci_enable_msix_range(dev->pdev, priv->msix_arr, MLX5_EQ_VEC_COMP_BASE + 1, nvec); if (nvec < 0) return nvec; table->num_comp_vectors = nvec - MLX5_EQ_VEC_COMP_BASE; return 0; } static void mlx5_disable_msix(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; pci_disable_msix(dev->pdev); kfree(priv->msix_arr); } struct mlx5_reg_host_endianess { u8 he; u8 rsvd[15]; }; #define CAP_MASK(pos, size) ((u64)((1 << (size)) - 1) << (pos)) enum { MLX5_CAP_BITS_RW_MASK = CAP_MASK(MLX5_CAP_OFF_CMDIF_CSUM, 2) | MLX5_DEV_CAP_FLAG_DCT | MLX5_DEV_CAP_FLAG_DRAIN_SIGERR, }; 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); 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(dev, in, sizeof(in), out, out_sz); 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->hca_caps_max[cap_type], hca_caps, MLX5_UN_SZ_BYTES(hca_cap_union)); break; case HCA_CAP_OPMOD_GET_CUR: memcpy(dev->hca_caps_cur[cap_type], 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 in_sz) { u32 out[MLX5_ST_SZ_DW(set_hca_cap_out)] = {0}; MLX5_SET(set_hca_cap_in, in, opcode, MLX5_CMD_OP_SET_HCA_CAP); return mlx5_cmd_exec(dev, in, in_sz, out, sizeof(out)); } static int handle_hca_cap(struct mlx5_core_dev *dev) { void *set_ctx = NULL; struct mlx5_profile *prof = dev->profile; int err = -ENOMEM; int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in); void *set_hca_cap; set_ctx = kzalloc(set_sz, GFP_KERNEL); err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL); if (err) goto query_ex; set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->hca_caps_cur[MLX5_CAP_GENERAL], 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)); 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 drain sigerr */ MLX5_SET(cmd_hca_cap, set_hca_cap, drain_sigerr, 1); MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12); err = set_caps(dev, set_ctx, set_sz); query_ex: kfree(set_ctx); return err; } static int handle_hca_cap_atomic(struct mlx5_core_dev *dev) { void *set_ctx; void *set_hca_cap; int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in); int req_endianness; int err; if (MLX5_CAP_GEN(dev, atomic)) { err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC); if (err) return err; } else { return 0; } req_endianness = MLX5_CAP_ATOMIC(dev, supported_atomic_req_8B_endianess_mode_1); if (req_endianness != MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS) return 0; set_ctx = kzalloc(set_sz, GFP_KERNEL); if (!set_ctx) return -ENOMEM; MLX5_SET(set_hca_cap_in, set_ctx, op_mod, MLX5_SET_HCA_CAP_OP_MOD_ATOMIC << 1); 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_endianess_mode, MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS); err = set_caps(dev, set_ctx, set_sz); kfree(set_ctx); return err; } static int set_hca_ctrl(struct mlx5_core_dev *dev) { struct mlx5_reg_host_endianess he_in; struct mlx5_reg_host_endianess he_out; int err; if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH && !MLX5_CAP_GEN(dev, roce)) 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_enable_hca(struct mlx5_core_dev *dev, u16 func_id) { u32 out[MLX5_ST_SZ_DW(enable_hca_out)] = {0}; u32 in[MLX5_ST_SZ_DW(enable_hca_in)] = {0}; MLX5_SET(enable_hca_in, in, opcode, MLX5_CMD_OP_ENABLE_HCA); MLX5_SET(enable_hca_in, in, function_id, func_id); return mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); } static int mlx5_core_disable_hca(struct mlx5_core_dev *dev) { u32 out[MLX5_ST_SZ_DW(disable_hca_out)] = {0}; u32 in[MLX5_ST_SZ_DW(disable_hca_in)] = {0}; MLX5_SET(disable_hca_in, in, opcode, MLX5_CMD_OP_DISABLE_HCA); return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); } static int mlx5_core_set_issi(struct mlx5_core_dev *dev) { u32 query_in[MLX5_ST_SZ_DW(query_issi_in)] = {0}; u32 query_out[MLX5_ST_SZ_DW(query_issi_out)] = {0}; u32 sup_issi; int err; MLX5_SET(query_issi_in, query_in, opcode, MLX5_CMD_OP_QUERY_ISSI); err = mlx5_cmd_exec(dev, query_in, sizeof(query_in), query_out, sizeof(query_out)); if (err) { u32 syndrome; u8 status; mlx5_cmd_mbox_status(query_out, &status, &syndrome); if (status == MLX5_CMD_STAT_BAD_OP_ERR) { mlx5_core_dbg(dev, "Only ISSI 0 is supported\n"); return 0; } mlx5_core_err(dev, "failed to query ISSI\n"); return err; } 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)] = {0}; u32 set_out[MLX5_ST_SZ_DW(set_issi_out)] = {0}; 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(dev, set_in, sizeof(set_in), set_out, sizeof(set_out)); if (err) { mlx5_core_err(dev, "failed to set ISSI=1 err(%d)\n", err); return err; } dev->issi = 1; return 0; } else if (sup_issi & (1 << 0)) { return 0; } return -ENOTSUPP; } int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn) { struct mlx5_eq_table *table = &dev->priv.eq_table; struct mlx5_eq *eq; int err = -ENOENT; spin_lock(&table->lock); list_for_each_entry(eq, &table->comp_eqs_list, list) { if (eq->index == vector) { *eqn = eq->eqn; *irqn = eq->irqn; err = 0; break; } } spin_unlock(&table->lock); return err; } EXPORT_SYMBOL(mlx5_vector2eqn); static void free_comp_eqs(struct mlx5_core_dev *dev) { struct mlx5_eq_table *table = &dev->priv.eq_table; struct mlx5_eq *eq, *n; spin_lock(&table->lock); list_for_each_entry_safe(eq, n, &table->comp_eqs_list, list) { list_del(&eq->list); spin_unlock(&table->lock); if (mlx5_destroy_unmap_eq(dev, eq)) mlx5_core_warn(dev, "failed to destroy EQ 0x%x\n", eq->eqn); kfree(eq); spin_lock(&table->lock); } spin_unlock(&table->lock); } static int alloc_comp_eqs(struct mlx5_core_dev *dev) { struct mlx5_eq_table *table = &dev->priv.eq_table; struct mlx5_eq *eq; int ncomp_vec; int nent; int err; int i; INIT_LIST_HEAD(&table->comp_eqs_list); ncomp_vec = table->num_comp_vectors; nent = MLX5_COMP_EQ_SIZE; for (i = 0; i < ncomp_vec; i++) { eq = kzalloc(sizeof(*eq), GFP_KERNEL); err = mlx5_create_map_eq(dev, eq, i + MLX5_EQ_VEC_COMP_BASE, nent, 0, &dev->priv.uuari.uars[0]); if (err) { kfree(eq); goto clean; } mlx5_core_dbg(dev, "allocated completion EQN %d\n", eq->eqn); eq->index = i; spin_lock(&table->lock); list_add_tail(&eq->list, &table->comp_eqs_list); spin_unlock(&table->lock); } return 0; clean: free_comp_eqs(dev); return err; } static int map_bf_area(struct mlx5_core_dev *dev) { resource_size_t bf_start = pci_resource_start(dev->pdev, 0); resource_size_t bf_len = pci_resource_len(dev->pdev, 0); dev->priv.bf_mapping = io_mapping_create_wc(bf_start, bf_len); return dev->priv.bf_mapping ? 0 : -ENOMEM; } static void unmap_bf_area(struct mlx5_core_dev *dev) { if (dev->priv.bf_mapping) io_mapping_free(dev->priv.bf_mapping); } static inline int fw_initializing(struct mlx5_core_dev *dev) { return ioread32be(&dev->iseg->initializing) >> 31; } static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili, u32 warn_time_mili) { int warn = jiffies + msecs_to_jiffies(warn_time_mili); int end = jiffies + msecs_to_jiffies(max_wait_mili); int err = 0; MPASS(max_wait_mili > warn_time_mili); while (fw_initializing(dev) == 1) { if (time_after(jiffies, end)) { err = -EBUSY; break; } if (warn_time_mili && time_after(jiffies, warn)) { mlx5_core_warn(dev, "Waiting for FW initialization, timeout abort in %u s\n", (unsigned int)(jiffies_to_msecs(end - warn) / 1000)); warn = jiffies + msecs_to_jiffies(warn_time_mili); } msleep(FW_INIT_WAIT_MS); } if (err != 0) mlx5_core_dbg(dev, "Full initializing bit dword = 0x%x\n", ioread32be(&dev->iseg->initializing)); return err; } static void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) { struct mlx5_device_context *dev_ctx; struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); dev_ctx = kzalloc(sizeof(*dev_ctx), GFP_KERNEL); if (!dev_ctx) return; dev_ctx->intf = intf; CURVNET_SET_QUIET(vnet0); dev_ctx->context = intf->add(dev); CURVNET_RESTORE(); if (dev_ctx->context) { spin_lock_irq(&priv->ctx_lock); list_add_tail(&dev_ctx->list, &priv->ctx_list); spin_unlock_irq(&priv->ctx_lock); } else { kfree(dev_ctx); } } static void mlx5_remove_device(struct mlx5_interface *intf, struct mlx5_priv *priv) { struct mlx5_device_context *dev_ctx; struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); list_for_each_entry(dev_ctx, &priv->ctx_list, list) if (dev_ctx->intf == intf) { spin_lock_irq(&priv->ctx_lock); list_del(&dev_ctx->list); spin_unlock_irq(&priv->ctx_lock); intf->remove(dev, dev_ctx->context); kfree(dev_ctx); return; } } int mlx5_register_device(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; struct mlx5_interface *intf; mutex_lock(&intf_mutex); list_add_tail(&priv->dev_list, &dev_list); list_for_each_entry(intf, &intf_list, list) mlx5_add_device(intf, priv); mutex_unlock(&intf_mutex); return 0; } void mlx5_unregister_device(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; struct mlx5_interface *intf; mutex_lock(&intf_mutex); list_for_each_entry(intf, &intf_list, list) mlx5_remove_device(intf, priv); list_del(&priv->dev_list); mutex_unlock(&intf_mutex); } int mlx5_register_interface(struct mlx5_interface *intf) { struct mlx5_priv *priv; if (!intf->add || !intf->remove) return -EINVAL; mutex_lock(&intf_mutex); list_add_tail(&intf->list, &intf_list); list_for_each_entry(priv, &dev_list, dev_list) mlx5_add_device(intf, priv); mutex_unlock(&intf_mutex); return 0; } EXPORT_SYMBOL(mlx5_register_interface); void mlx5_unregister_interface(struct mlx5_interface *intf) { struct mlx5_priv *priv; mutex_lock(&intf_mutex); list_for_each_entry(priv, &dev_list, dev_list) mlx5_remove_device(intf, priv); list_del(&intf->list); mutex_unlock(&intf_mutex); } EXPORT_SYMBOL(mlx5_unregister_interface); void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol) { struct mlx5_priv *priv = &mdev->priv; struct mlx5_device_context *dev_ctx; unsigned long flags; void *result = NULL; spin_lock_irqsave(&priv->ctx_lock, flags); list_for_each_entry(dev_ctx, &mdev->priv.ctx_list, list) if ((dev_ctx->intf->protocol == protocol) && dev_ctx->intf->get_dev) { result = dev_ctx->intf->get_dev(dev_ctx->context); break; } spin_unlock_irqrestore(&priv->ctx_lock, flags); return result; } EXPORT_SYMBOL(mlx5_get_protocol_dev); static int mlx5_auto_fw_update; SYSCTL_INT(_hw_mlx5, OID_AUTO, auto_fw_update, CTLFLAG_RDTUN | CTLFLAG_NOFETCH, &mlx5_auto_fw_update, 0, "Allow automatic firmware update on driver start"); static int mlx5_firmware_update(struct mlx5_core_dev *dev) { const struct firmware *fw; int err; TUNABLE_INT_FETCH("hw.mlx5.auto_fw_update", &mlx5_auto_fw_update); if (!mlx5_auto_fw_update) return (0); fw = firmware_get("mlx5fw_mfa"); if (fw) { err = mlx5_firmware_flash(dev, fw); firmware_put(fw, FIRMWARE_UNLOAD); } else return (-ENOENT); return err; } static int mlx5_pci_init(struct mlx5_core_dev *dev, struct mlx5_priv *priv) { struct pci_dev *pdev = dev->pdev; device_t bsddev; int err; pdev = dev->pdev; bsddev = pdev->dev.bsddev; pci_set_drvdata(dev->pdev, dev); strncpy(priv->name, dev_name(&pdev->dev), MLX5_MAX_NAME_LEN); priv->name[MLX5_MAX_NAME_LEN - 1] = 0; mutex_init(&priv->pgdir_mutex); INIT_LIST_HEAD(&priv->pgdir_list); spin_lock_init(&priv->mkey_lock); priv->numa_node = NUMA_NO_NODE; err = mlx5_pci_enable_device(dev); if (err) { mlx5_core_err(dev, "Cannot enable PCI device, aborting\n"); goto err_dbg; } 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; } dev->iseg_base = pci_resource_start(dev->pdev, 0); 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; } return 0; err_clr_master: release_bar(dev->pdev); err_disable: mlx5_pci_disable_device(dev); err_dbg: return err; } static void mlx5_pci_close(struct mlx5_core_dev *dev, struct mlx5_priv *priv) { #ifdef PCI_IOV if (MLX5_CAP_GEN(dev, eswitch_flow_table)) pci_iov_detach(dev->pdev->dev.bsddev); #endif iounmap(dev->iseg); release_bar(dev->pdev); mlx5_pci_disable_device(dev); } static int mlx5_init_once(struct mlx5_core_dev *dev, struct mlx5_priv *priv) { int err; err = mlx5_vsc_find_cap(dev); if (err) mlx5_core_err(dev, "Unable to find vendor specific capabilities\n"); err = mlx5_query_hca_caps(dev); if (err) { mlx5_core_err(dev, "query hca failed\n"); goto out; } err = mlx5_query_board_id(dev); if (err) { mlx5_core_err(dev, "query board id failed\n"); goto out; } err = mlx5_eq_init(dev); if (err) { mlx5_core_err(dev, "failed to initialize eq\n"); goto out; } MLX5_INIT_DOORBELL_LOCK(&priv->cq_uar_lock); err = mlx5_init_cq_table(dev); if (err) { mlx5_core_err(dev, "failed to initialize cq table\n"); goto err_eq_cleanup; } mlx5_init_qp_table(dev); mlx5_init_srq_table(dev); mlx5_init_mr_table(dev); mlx5_init_reserved_gids(dev); mlx5_fpga_init(dev); #ifdef RATELIMIT err = mlx5_init_rl_table(dev); if (err) { mlx5_core_err(dev, "Failed to init rate limiting\n"); goto err_tables_cleanup; } #endif return 0; #ifdef RATELIMIT err_tables_cleanup: mlx5_cleanup_mr_table(dev); mlx5_cleanup_srq_table(dev); mlx5_cleanup_qp_table(dev); mlx5_cleanup_cq_table(dev); #endif err_eq_cleanup: mlx5_eq_cleanup(dev); out: return err; } static void mlx5_cleanup_once(struct mlx5_core_dev *dev) { #ifdef RATELIMIT mlx5_cleanup_rl_table(dev); #endif mlx5_fpga_cleanup(dev); mlx5_cleanup_reserved_gids(dev); mlx5_cleanup_mr_table(dev); mlx5_cleanup_srq_table(dev); mlx5_cleanup_qp_table(dev); mlx5_cleanup_cq_table(dev); mlx5_eq_cleanup(dev); } static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv, bool boot) { int err; 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; } mlx5_core_dbg(dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev), fw_rev_min(dev), fw_rev_sub(dev)); /* * On load removing any previous indication of internal error, * device is up */ dev->state = MLX5_DEVICE_STATE_UP; /* wait for firmware to accept initialization segments configurations */ err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI, FW_INIT_WARN_MESSAGE_INTERVAL); if (err) { dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n", FW_PRE_INIT_TIMEOUT_MILI); goto out_err; } err = mlx5_cmd_init(dev); if (err) { mlx5_core_err(dev, "Failed initializing command interface, aborting\n"); goto out_err; } err = wait_fw_init(dev, FW_INIT_TIMEOUT_MILI, 0); if (err) { mlx5_core_err(dev, "Firmware over %d MS in initializing state, aborting\n", FW_INIT_TIMEOUT_MILI); goto err_cmd_cleanup; } err = mlx5_core_enable_hca(dev, 0); if (err) { mlx5_core_err(dev, "enable hca failed\n"); goto err_cmd_cleanup; } err = mlx5_core_set_issi(dev); if (err) { mlx5_core_err(dev, "failed to set issi\n"); goto err_disable_hca; } err = mlx5_pagealloc_start(dev); if (err) { mlx5_core_err(dev, "mlx5_pagealloc_start failed\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_pagealloc_stop; } err = set_hca_ctrl(dev); if (err) { mlx5_core_err(dev, "set_hca_ctrl failed\n"); goto reclaim_boot_pages; } err = handle_hca_cap(dev); if (err) { mlx5_core_err(dev, "handle_hca_cap failed\n"); goto reclaim_boot_pages; } err = handle_hca_cap_atomic(dev); if (err) { mlx5_core_err(dev, "handle_hca_cap_atomic 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); if (err) { mlx5_core_err(dev, "init hca failed\n"); goto reclaim_boot_pages; } mlx5_start_health_poll(dev); if (boot && mlx5_init_once(dev, priv)) { mlx5_core_err(dev, "sw objs init failed\n"); goto err_stop_poll; } err = mlx5_enable_msix(dev); if (err) { mlx5_core_err(dev, "enable msix failed\n"); goto err_cleanup_once; } err = mlx5_alloc_uuars(dev, &priv->uuari); if (err) { mlx5_core_err(dev, "Failed allocating uar, aborting\n"); goto err_disable_msix; } err = mlx5_start_eqs(dev); if (err) { mlx5_core_err(dev, "Failed to start pages and async EQs\n"); goto err_free_uar; } err = alloc_comp_eqs(dev); if (err) { mlx5_core_err(dev, "Failed to alloc completion EQs\n"); goto err_stop_eqs; } if (map_bf_area(dev)) mlx5_core_err(dev, "Failed to map blue flame area\n"); err = mlx5_init_fs(dev); if (err) { mlx5_core_err(dev, "flow steering init %d\n", err); goto err_free_comp_eqs; } err = mlx5_mpfs_init(dev); if (err) { mlx5_core_err(dev, "mpfs init failed %d\n", err); goto err_fs; } err = mlx5_fpga_device_start(dev); if (err) { mlx5_core_err(dev, "fpga device start failed %d\n", err); goto err_mpfs; } err = mlx5_register_device(dev); if (err) { mlx5_core_err(dev, "mlx5_register_device failed %d\n", err); goto err_fpga; } set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); out: mutex_unlock(&dev->intf_state_mutex); return 0; err_fpga: mlx5_fpga_device_stop(dev); err_mpfs: mlx5_mpfs_destroy(dev); err_fs: mlx5_cleanup_fs(dev); err_free_comp_eqs: free_comp_eqs(dev); unmap_bf_area(dev); err_stop_eqs: mlx5_stop_eqs(dev); err_free_uar: mlx5_free_uuars(dev, &priv->uuari); err_disable_msix: mlx5_disable_msix(dev); err_cleanup_once: if (boot) mlx5_cleanup_once(dev); err_stop_poll: mlx5_stop_health_poll(dev, boot); if (mlx5_cmd_teardown_hca(dev)) { mlx5_core_err(dev, "tear_down_hca failed, skip cleanup\n"); goto out_err; } reclaim_boot_pages: mlx5_reclaim_startup_pages(dev); err_pagealloc_stop: mlx5_pagealloc_stop(dev); err_disable_hca: mlx5_core_disable_hca(dev); err_cmd_cleanup: mlx5_cmd_cleanup(dev); out_err: dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR; mutex_unlock(&dev->intf_state_mutex); return err; } static int mlx5_unload_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv, bool cleanup) { int err = 0; if (cleanup) mlx5_drain_health_recovery(dev); mutex_lock(&dev->intf_state_mutex); if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) { mlx5_core_warn(dev, "%s: interface is down, NOP\n", __func__); if (cleanup) mlx5_cleanup_once(dev); goto out; } mlx5_unregister_device(dev); mlx5_eswitch_cleanup(dev->priv.eswitch); mlx5_fpga_device_stop(dev); mlx5_mpfs_destroy(dev); mlx5_cleanup_fs(dev); unmap_bf_area(dev); mlx5_wait_for_reclaim_vfs_pages(dev); free_comp_eqs(dev); mlx5_stop_eqs(dev); mlx5_free_uuars(dev, &priv->uuari); mlx5_disable_msix(dev); if (cleanup) mlx5_cleanup_once(dev); mlx5_stop_health_poll(dev, cleanup); err = mlx5_cmd_teardown_hca(dev); if (err) { mlx5_core_err(dev, "tear_down_hca failed, skip cleanup\n"); goto out; } mlx5_pagealloc_stop(dev); mlx5_reclaim_startup_pages(dev); mlx5_core_disable_hca(dev); mlx5_cmd_cleanup(dev); out: clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state); mutex_unlock(&dev->intf_state_mutex); return err; } void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event, unsigned long param) { struct mlx5_priv *priv = &dev->priv; struct mlx5_device_context *dev_ctx; unsigned long flags; spin_lock_irqsave(&priv->ctx_lock, flags); list_for_each_entry(dev_ctx, &priv->ctx_list, list) if (dev_ctx->intf->event) dev_ctx->intf->event(dev, dev_ctx->context, event, param); spin_unlock_irqrestore(&priv->ctx_lock, flags); } struct mlx5_core_event_handler { void (*event)(struct mlx5_core_dev *dev, enum mlx5_dev_event event, void *data); }; #define MLX5_STATS_DESC(a, b, c, d, e, ...) d, e, #define MLX5_PORT_MODULE_ERROR_STATS(m) \ m(+1, u64, power_budget_exceeded, "power_budget", "Module Power Budget Exceeded") \ m(+1, u64, long_range, "long_range", "Module Long Range for non MLNX cable/module") \ m(+1, u64, bus_stuck, "bus_stuck", "Module Bus stuck(I2C or data shorted)") \ m(+1, u64, no_eeprom, "no_eeprom", "No EEPROM/retry timeout") \ m(+1, u64, enforce_part_number, "enforce_part_number", "Module Enforce part number list") \ m(+1, u64, unknown_id, "unknown_id", "Module Unknown identifier") \ m(+1, u64, high_temp, "high_temp", "Module High Temperature") \ m(+1, u64, cable_shorted, "cable_shorted", "Module Cable is shorted") \ m(+1, u64, pmd_type_not_enabled, "pmd_type_not_enabled", "PMD type is not enabled") \ m(+1, u64, laster_tec_failure, "laster_tec_failure", "Laster TEC failure") \ m(+1, u64, high_current, "high_current", "High current") \ m(+1, u64, high_voltage, "high_voltage", "High voltage") \ m(+1, u64, pcie_sys_power_slot_exceeded, "pcie_sys_power_slot_exceeded", "PCIe system power slot Exceeded") \ m(+1, u64, high_power, "high_power", "High power") \ m(+1, u64, module_state_machine_fault, "module_state_machine_fault", "Module State Machine fault") static const char *mlx5_pme_err_desc[] = { MLX5_PORT_MODULE_ERROR_STATS(MLX5_STATS_DESC) }; static int init_one(struct pci_dev *pdev, const struct pci_device_id *id) { struct mlx5_core_dev *dev; struct mlx5_priv *priv; device_t bsddev = pdev->dev.bsddev; #ifdef PCI_IOV nvlist_t *pf_schema, *vf_schema; int num_vfs, sriov_pos; #endif int i,err; struct sysctl_oid *pme_sysctl_node; struct sysctl_oid *pme_err_sysctl_node; struct sysctl_oid *cap_sysctl_node; struct sysctl_oid *current_cap_sysctl_node; struct sysctl_oid *max_cap_sysctl_node; dev = kzalloc(sizeof(*dev), GFP_KERNEL); priv = &dev->priv; if (id) priv->pci_dev_data = id->driver_data; if (mlx5_prof_sel < 0 || mlx5_prof_sel >= ARRAY_SIZE(profiles)) { device_printf(bsddev, "WARN: selected profile out of range, selecting default (%d)\n", MLX5_DEFAULT_PROF); mlx5_prof_sel = MLX5_DEFAULT_PROF; } dev->profile = &profiles[mlx5_prof_sel]; dev->pdev = pdev; dev->event = mlx5_core_event; /* Set desc */ device_set_desc(bsddev, mlx5_version); sysctl_ctx_init(&dev->sysctl_ctx); SYSCTL_ADD_INT(&dev->sysctl_ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)), OID_AUTO, "msix_eqvec", CTLFLAG_RDTUN, &dev->msix_eqvec, 0, "Maximum number of MSIX event queue vectors, if set"); SYSCTL_ADD_INT(&dev->sysctl_ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)), OID_AUTO, "power_status", CTLFLAG_RD, &dev->pwr_status, 0, "0:Invalid 1:Sufficient 2:Insufficient"); SYSCTL_ADD_INT(&dev->sysctl_ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)), OID_AUTO, "power_value", CTLFLAG_RD, &dev->pwr_value, 0, "Current power value in Watts"); pme_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)), OID_AUTO, "pme_stats", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Port module event statistics"); if (pme_sysctl_node == NULL) { err = -ENOMEM; goto clean_sysctl_ctx; } pme_err_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx, SYSCTL_CHILDREN(pme_sysctl_node), OID_AUTO, "errors", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Port module event error statistics"); if (pme_err_sysctl_node == NULL) { err = -ENOMEM; goto clean_sysctl_ctx; } SYSCTL_ADD_U64(&dev->sysctl_ctx, SYSCTL_CHILDREN(pme_sysctl_node), OID_AUTO, "module_plug", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->priv.pme_stats.status_counters[MLX5_MODULE_STATUS_PLUGGED_ENABLED], 0, "Number of time module plugged"); SYSCTL_ADD_U64(&dev->sysctl_ctx, SYSCTL_CHILDREN(pme_sysctl_node), OID_AUTO, "module_unplug", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->priv.pme_stats.status_counters[MLX5_MODULE_STATUS_UNPLUGGED], 0, "Number of time module unplugged"); for (i = 0 ; i < MLX5_MODULE_EVENT_ERROR_NUM; i++) { SYSCTL_ADD_U64(&dev->sysctl_ctx, SYSCTL_CHILDREN(pme_err_sysctl_node), OID_AUTO, mlx5_pme_err_desc[2 * i], CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->priv.pme_stats.error_counters[i], 0, mlx5_pme_err_desc[2 * i + 1]); } cap_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(bsddev)), OID_AUTO, "caps", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "hardware capabilities raw bitstrings"); if (cap_sysctl_node == NULL) { err = -ENOMEM; goto clean_sysctl_ctx; } current_cap_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "current", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); if (current_cap_sysctl_node == NULL) { err = -ENOMEM; goto clean_sysctl_ctx; } max_cap_sysctl_node = SYSCTL_ADD_NODE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "max", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, ""); if (max_cap_sysctl_node == NULL) { err = -ENOMEM; goto clean_sysctl_ctx; } SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "general", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_GENERAL], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "general", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_GENERAL], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "ether", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ETHERNET_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "ether", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ETHERNET_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "odp", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ODP], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "odp", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ODP], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "atomic", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ATOMIC], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "atomic", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ATOMIC], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "roce", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ROCE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "roce", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ROCE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "ipoib", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_IPOIB_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "ipoib", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_IPOIB_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "eoib", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_EOIB_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "eoib", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_EOIB_OFFLOADS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "flow_table", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_FLOW_TABLE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "flow_table", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_FLOW_TABLE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "eswitch_flow_table", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ESWITCH_FLOW_TABLE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "eswitch_flow_table", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ESWITCH_FLOW_TABLE], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "eswitch", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_ESWITCH], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "eswitch", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_ESWITCH], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "snapshot", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_SNAPSHOT], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "snapshot", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_SNAPSHOT], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "vector_calc", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_VECTOR_CALC], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "vector_calc", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_VECTOR_CALC], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "qos", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_QOS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "qos", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_QOS], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(current_cap_sysctl_node), OID_AUTO, "debug", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_cur[MLX5_CAP_DEBUG], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(max_cap_sysctl_node), OID_AUTO, "debug", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->hca_caps_max[MLX5_CAP_DEBUG], MLX5_UN_SZ_DW(hca_cap_union) * sizeof(u32), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "pcam", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->caps.pcam, sizeof(dev->caps.pcam), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "mcam", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->caps.mcam, sizeof(dev->caps.mcam), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "qcam", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->caps.qcam, sizeof(dev->caps.qcam), "IU", ""); SYSCTL_ADD_OPAQUE(&dev->sysctl_ctx, SYSCTL_CHILDREN(cap_sysctl_node), OID_AUTO, "fpga", CTLFLAG_RD | CTLFLAG_MPSAFE, &dev->caps.fpga, sizeof(dev->caps.fpga), "IU", ""); INIT_LIST_HEAD(&priv->ctx_list); spin_lock_init(&priv->ctx_lock); mutex_init(&dev->pci_status_mutex); mutex_init(&dev->intf_state_mutex); mtx_init(&dev->dump_lock, "mlx5dmp", NULL, MTX_DEF | MTX_NEW); err = mlx5_pci_init(dev, priv); if (err) { mlx5_core_err(dev, "mlx5_pci_init failed %d\n", err); goto clean_dev; } err = mlx5_health_init(dev); if (err) { mlx5_core_err(dev, "mlx5_health_init failed %d\n", err); goto close_pci; } mlx5_pagealloc_init(dev); err = mlx5_load_one(dev, priv, true); if (err) { mlx5_core_err(dev, "mlx5_load_one failed %d\n", err); goto clean_health; } mlx5_fwdump_prep(dev); mlx5_firmware_update(dev); #ifdef PCI_IOV if (MLX5_CAP_GEN(dev, vport_group_manager)) { if (pci_find_extcap(bsddev, PCIZ_SRIOV, &sriov_pos) == 0) { num_vfs = pci_read_config(bsddev, sriov_pos + PCIR_SRIOV_TOTAL_VFS, 2); } else { mlx5_core_info(dev, "cannot find SR-IOV PCIe cap\n"); num_vfs = 0; } err = mlx5_eswitch_init(dev, 1 + num_vfs); if (err == 0) { pf_schema = pci_iov_schema_alloc_node(); vf_schema = pci_iov_schema_alloc_node(); pci_iov_schema_add_unicast_mac(vf_schema, iov_mac_addr_name, 0, NULL); pci_iov_schema_add_uint64(vf_schema, iov_node_guid_name, 0, 0); pci_iov_schema_add_uint64(vf_schema, iov_port_guid_name, 0, 0); err = pci_iov_attach(bsddev, pf_schema, vf_schema); if (err != 0) { device_printf(bsddev, "Failed to initialize SR-IOV support, error %d\n", err); } } else { mlx5_core_err(dev, "eswitch init failed, error %d\n", err); } } #endif pci_save_state(bsddev); return 0; clean_health: mlx5_pagealloc_cleanup(dev); mlx5_health_cleanup(dev); close_pci: mlx5_pci_close(dev, priv); clean_dev: mtx_destroy(&dev->dump_lock); clean_sysctl_ctx: sysctl_ctx_free(&dev->sysctl_ctx); kfree(dev); return err; } static void remove_one(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct mlx5_priv *priv = &dev->priv; if (mlx5_unload_one(dev, priv, true)) { mlx5_core_err(dev, "mlx5_unload_one() failed, leaked %lld bytes\n", (long long)(dev->priv.fw_pages * MLX5_ADAPTER_PAGE_SIZE)); } mlx5_pagealloc_cleanup(dev); mlx5_health_cleanup(dev); mlx5_fwdump_clean(dev); mlx5_pci_close(dev, priv); mtx_destroy(&dev->dump_lock); pci_set_drvdata(pdev, NULL); sysctl_ctx_free(&dev->sysctl_ctx); kfree(dev); } 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); struct mlx5_priv *priv = &dev->priv; mlx5_core_info(dev, "%s was called\n", __func__); mlx5_enter_error_state(dev, false); mlx5_unload_one(dev, priv, false); if (state) { mlx5_drain_health_wq(dev); mlx5_pci_disable_device(dev); } return state == pci_channel_io_perm_failure ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; } static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); int err = 0; mlx5_core_info(dev,"%s was called\n", __func__); err = mlx5_pci_enable_device(dev); if (err) { mlx5_core_err(dev, "mlx5_pci_enable_device failed with error code: %d\n" ,err); return PCI_ERS_RESULT_DISCONNECT; } pci_set_master(pdev); pci_set_powerstate(pdev->dev.bsddev, PCI_POWERSTATE_D0); pci_restore_state(pdev->dev.bsddev); pci_save_state(pdev->dev.bsddev); return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; } /* wait for the device to show vital signs. For now we check * that we can read the device ID and that the health buffer * shows a non zero value which is different than 0xffffffff */ static void 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 count; u16 did; int i; /* Wait for firmware to be ready after reset */ msleep(1000); for (i = 0; i < niter; i++) { if (pci_read_config_word(pdev, 2, &did)) { mlx5_core_warn(dev, "failed reading config word\n"); break; } if (did == pdev->device) { mlx5_core_info(dev, "device ID correctly read after %d iterations\n", i); break; } msleep(50); } if (i == niter) mlx5_core_warn(dev, "could not read device ID\n"); for (i = 0; i < niter; i++) { count = ioread32be(health->health_counter); if (count && count != 0xffffffff) { mlx5_core_info(dev, "Counter value 0x%x after %d iterations\n", count, i); break; } msleep(50); } if (i == niter) mlx5_core_warn(dev, "could not read device ID\n"); } static void mlx5_pci_resume(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct mlx5_priv *priv = &dev->priv; int err; mlx5_core_info(dev,"%s was called\n", __func__); wait_vital(pdev); err = mlx5_load_one(dev, priv, false); if (err) mlx5_core_err(dev, "mlx5_load_one failed with error code: %d\n" ,err); else mlx5_core_info(dev,"device recovered\n"); } 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 }; #ifdef PCI_IOV static int mlx5_iov_init(device_t dev, uint16_t num_vfs, const nvlist_t *pf_config) { struct pci_dev *pdev; struct mlx5_core_dev *core_dev; struct mlx5_priv *priv; int err; pdev = device_get_softc(dev); core_dev = pci_get_drvdata(pdev); priv = &core_dev->priv; if (priv->eswitch == NULL) return (ENXIO); if (priv->eswitch->total_vports < num_vfs + 1) num_vfs = priv->eswitch->total_vports - 1; err = mlx5_eswitch_enable_sriov(priv->eswitch, num_vfs); return (-err); } static void mlx5_iov_uninit(device_t dev) { struct pci_dev *pdev; struct mlx5_core_dev *core_dev; struct mlx5_priv *priv; pdev = device_get_softc(dev); core_dev = pci_get_drvdata(pdev); priv = &core_dev->priv; mlx5_eswitch_disable_sriov(priv->eswitch); } static int mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nvlist_t *vf_config) { struct pci_dev *pdev; struct mlx5_core_dev *core_dev; struct mlx5_priv *priv; const void *mac; size_t mac_size; uint64_t node_guid, port_guid; int error; pdev = device_get_softc(dev); core_dev = pci_get_drvdata(pdev); priv = &core_dev->priv; if (vfnum + 1 >= priv->eswitch->total_vports) return (ENXIO); if (nvlist_exists_binary(vf_config, iov_mac_addr_name)) { mac = nvlist_get_binary(vf_config, iov_mac_addr_name, &mac_size); error = -mlx5_eswitch_set_vport_mac(priv->eswitch, vfnum + 1, __DECONST(u8 *, mac)); if (error != 0) { mlx5_core_err(core_dev, "setting MAC for VF %d failed, error %d\n", vfnum + 1, error); } } if (nvlist_exists_number(vf_config, iov_node_guid_name)) { node_guid = nvlist_get_number(vf_config, iov_node_guid_name); error = -mlx5_modify_nic_vport_node_guid(core_dev, vfnum + 1, node_guid); if (error != 0) { mlx5_core_err(core_dev, "modifying node GUID for VF %d failed, error %d\n", vfnum + 1, error); } } if (nvlist_exists_number(vf_config, iov_port_guid_name)) { port_guid = nvlist_get_number(vf_config, iov_port_guid_name); error = -mlx5_modify_nic_vport_port_guid(core_dev, vfnum + 1, port_guid); if (error != 0) { mlx5_core_err(core_dev, "modifying port GUID for VF %d failed, error %d\n", vfnum + 1, error); } } error = -mlx5_eswitch_set_vport_state(priv->eswitch, vfnum + 1, VPORT_STATE_FOLLOW); if (error != 0) { mlx5_core_err(core_dev, "upping vport for VF %d failed, error %d\n", vfnum + 1, error); } error = -mlx5_core_enable_hca(core_dev, vfnum + 1); if (error != 0) { mlx5_core_err(core_dev, "enabling VF %d failed, error %d\n", vfnum + 1, error); } return (error); } #endif static int mlx5_try_fast_unload(struct mlx5_core_dev *dev) { bool fast_teardown, force_teardown; int err; if (!mlx5_fast_unload_enabled) { mlx5_core_dbg(dev, "fast unload is disabled by user\n"); return -EOPNOTSUPP; } 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 polll is no longer needed. */ mlx5_drain_health_wq(dev); mlx5_stop_health_poll(dev, false); err = mlx5_cmd_fast_teardown_hca(dev); if (!err) goto done; err = mlx5_cmd_force_teardown_hca(dev); if (!err) goto done; mlx5_core_dbg(dev, "Firmware couldn't do fast unload error: %d\n", err); mlx5_start_health_poll(dev); return err; done: mlx5_enter_error_state(dev, true); return 0; } static void mlx5_shutdown_disable_interrupts(struct mlx5_core_dev *mdev) { int nvec = mdev->priv.eq_table.num_comp_vectors + MLX5_EQ_VEC_COMP_BASE; int x; mdev->priv.disable_irqs = 1; /* wait for all IRQ handlers to finish processing */ for (x = 0; x != nvec; x++) synchronize_irq(mdev->priv.msix_arr[x].vector); } static void shutdown_one(struct pci_dev *pdev) { struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct mlx5_priv *priv = &dev->priv; int err; /* enter polling mode */ mlx5_cmd_use_polling(dev); set_bit(MLX5_INTERFACE_STATE_TEARDOWN, &dev->intf_state); /* disable all interrupts */ mlx5_shutdown_disable_interrupts(dev); err = mlx5_try_fast_unload(dev); if (err) mlx5_unload_one(dev, priv, false); mlx5_pci_disable_device(dev); } static const struct pci_device_id mlx5_core_pci_table[] = { { PCI_VDEVICE(MELLANOX, 4113) }, /* Connect-IB */ { PCI_VDEVICE(MELLANOX, 4114) }, /* Connect-IB VF */ { PCI_VDEVICE(MELLANOX, 4115) }, /* ConnectX-4 */ { PCI_VDEVICE(MELLANOX, 4116) }, /* ConnectX-4 VF */ { PCI_VDEVICE(MELLANOX, 4117) }, /* ConnectX-4LX */ { PCI_VDEVICE(MELLANOX, 4118) }, /* ConnectX-4LX VF */ { PCI_VDEVICE(MELLANOX, 4119) }, /* ConnectX-5 */ { PCI_VDEVICE(MELLANOX, 4120) }, /* ConnectX-5 VF */ { PCI_VDEVICE(MELLANOX, 4121) }, { PCI_VDEVICE(MELLANOX, 4122) }, { PCI_VDEVICE(MELLANOX, 4123) }, { PCI_VDEVICE(MELLANOX, 4124) }, { PCI_VDEVICE(MELLANOX, 4125) }, { PCI_VDEVICE(MELLANOX, 4126) }, { PCI_VDEVICE(MELLANOX, 4127) }, { PCI_VDEVICE(MELLANOX, 4128) }, { PCI_VDEVICE(MELLANOX, 4129) }, { PCI_VDEVICE(MELLANOX, 4130) }, { PCI_VDEVICE(MELLANOX, 4131) }, { PCI_VDEVICE(MELLANOX, 4132) }, { PCI_VDEVICE(MELLANOX, 4133) }, { PCI_VDEVICE(MELLANOX, 4134) }, { PCI_VDEVICE(MELLANOX, 4135) }, { PCI_VDEVICE(MELLANOX, 4136) }, { PCI_VDEVICE(MELLANOX, 4137) }, { PCI_VDEVICE(MELLANOX, 4138) }, { PCI_VDEVICE(MELLANOX, 4139) }, { PCI_VDEVICE(MELLANOX, 4140) }, { PCI_VDEVICE(MELLANOX, 4141) }, { PCI_VDEVICE(MELLANOX, 4142) }, { PCI_VDEVICE(MELLANOX, 4143) }, { PCI_VDEVICE(MELLANOX, 4144) }, { 0, } }; MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table); void mlx5_disable_device(struct mlx5_core_dev *dev) { mlx5_pci_err_detected(dev->pdev, 0); } void mlx5_recover_device(struct mlx5_core_dev *dev) { mlx5_pci_disable_device(dev); if (mlx5_pci_slot_reset(dev->pdev) == PCI_ERS_RESULT_RECOVERED) mlx5_pci_resume(dev->pdev); } struct pci_driver mlx5_core_driver = { .name = DRIVER_NAME, .id_table = mlx5_core_pci_table, .shutdown = shutdown_one, .probe = init_one, .remove = remove_one, .err_handler = &mlx5_err_handler, #ifdef PCI_IOV .bsd_iov_init = mlx5_iov_init, .bsd_iov_uninit = mlx5_iov_uninit, .bsd_iov_add_vf = mlx5_iov_add_vf, #endif }; static int __init init(void) { int err; err = pci_register_driver(&mlx5_core_driver); if (err) goto err_debug; err = mlx5_ctl_init(); if (err) goto err_ctl; return 0; err_ctl: pci_unregister_driver(&mlx5_core_driver); err_debug: return err; } static void __exit cleanup(void) { mlx5_ctl_fini(); pci_unregister_driver(&mlx5_core_driver); } module_init_order(init, SI_ORDER_FIRST); module_exit_order(cleanup, SI_ORDER_FIRST);