/*- * Copyright (c) 2013-2017, 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. */ #include "opt_rss.h" #include "opt_ratelimit.h" #include #include #include #include #include #include #include #ifdef RSS #include #include #endif enum { MLX5_EQE_SIZE = sizeof(struct mlx5_eqe), MLX5_EQE_OWNER_INIT_VAL = 0x1, }; enum { MLX5_NUM_SPARE_EQE = 0x80, MLX5_NUM_ASYNC_EQE = 0x100, MLX5_NUM_CMD_EQE = 32, }; enum { MLX5_EQ_DOORBEL_OFFSET = 0x40, }; #define MLX5_ASYNC_EVENT_MASK ((1ull << MLX5_EVENT_TYPE_PATH_MIG) | \ (1ull << MLX5_EVENT_TYPE_COMM_EST) | \ (1ull << MLX5_EVENT_TYPE_SQ_DRAINED) | \ (1ull << MLX5_EVENT_TYPE_CQ_ERROR) | \ (1ull << MLX5_EVENT_TYPE_WQ_CATAS_ERROR) | \ (1ull << MLX5_EVENT_TYPE_PATH_MIG_FAILED) | \ (1ull << MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \ (1ull << MLX5_EVENT_TYPE_WQ_ACCESS_ERROR) | \ (1ull << MLX5_EVENT_TYPE_PORT_CHANGE) | \ (1ull << MLX5_EVENT_TYPE_SRQ_CATAS_ERROR) | \ (1ull << MLX5_EVENT_TYPE_SRQ_LAST_WQE) | \ (1ull << MLX5_EVENT_TYPE_SRQ_RQ_LIMIT) | \ (1ull << MLX5_EVENT_TYPE_NIC_VPORT_CHANGE)) struct map_eq_in { u64 mask; u32 reserved; u32 unmap_eqn; }; struct cre_des_eq { u8 reserved[15]; u8 eqn; }; /*Function prototype*/ static void mlx5_port_module_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe); static void mlx5_port_general_notification_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe); static int mlx5_cmd_destroy_eq(struct mlx5_core_dev *dev, u8 eqn) { u32 in[MLX5_ST_SZ_DW(destroy_eq_in)] = {0}; u32 out[MLX5_ST_SZ_DW(destroy_eq_out)] = {0}; MLX5_SET(destroy_eq_in, in, opcode, MLX5_CMD_OP_DESTROY_EQ); MLX5_SET(destroy_eq_in, in, eq_number, eqn); return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); } static struct mlx5_eqe *get_eqe(struct mlx5_eq *eq, u32 entry) { return mlx5_buf_offset(&eq->buf, entry * MLX5_EQE_SIZE); } static struct mlx5_eqe *next_eqe_sw(struct mlx5_eq *eq) { struct mlx5_eqe *eqe = get_eqe(eq, eq->cons_index & (eq->nent - 1)); return ((eqe->owner & 1) ^ !!(eq->cons_index & eq->nent)) ? NULL : eqe; } static const char *eqe_type_str(u8 type) { switch (type) { case MLX5_EVENT_TYPE_COMP: return "MLX5_EVENT_TYPE_COMP"; case MLX5_EVENT_TYPE_PATH_MIG: return "MLX5_EVENT_TYPE_PATH_MIG"; case MLX5_EVENT_TYPE_COMM_EST: return "MLX5_EVENT_TYPE_COMM_EST"; case MLX5_EVENT_TYPE_SQ_DRAINED: return "MLX5_EVENT_TYPE_SQ_DRAINED"; case MLX5_EVENT_TYPE_SRQ_LAST_WQE: return "MLX5_EVENT_TYPE_SRQ_LAST_WQE"; case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT: return "MLX5_EVENT_TYPE_SRQ_RQ_LIMIT"; case MLX5_EVENT_TYPE_CQ_ERROR: return "MLX5_EVENT_TYPE_CQ_ERROR"; case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: return "MLX5_EVENT_TYPE_WQ_CATAS_ERROR"; case MLX5_EVENT_TYPE_PATH_MIG_FAILED: return "MLX5_EVENT_TYPE_PATH_MIG_FAILED"; case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: return "MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR"; case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: return "MLX5_EVENT_TYPE_WQ_ACCESS_ERROR"; case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR: return "MLX5_EVENT_TYPE_SRQ_CATAS_ERROR"; case MLX5_EVENT_TYPE_INTERNAL_ERROR: return "MLX5_EVENT_TYPE_INTERNAL_ERROR"; case MLX5_EVENT_TYPE_PORT_CHANGE: return "MLX5_EVENT_TYPE_PORT_CHANGE"; case MLX5_EVENT_TYPE_GPIO_EVENT: return "MLX5_EVENT_TYPE_GPIO_EVENT"; case MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT: return "MLX5_EVENT_TYPE_PORT_MODULE_EVENT"; case MLX5_EVENT_TYPE_TEMP_WARN_EVENT: return "MLX5_EVENT_TYPE_TEMP_WARN_EVENT"; case MLX5_EVENT_TYPE_REMOTE_CONFIG: return "MLX5_EVENT_TYPE_REMOTE_CONFIG"; case MLX5_EVENT_TYPE_DB_BF_CONGESTION: return "MLX5_EVENT_TYPE_DB_BF_CONGESTION"; case MLX5_EVENT_TYPE_STALL_EVENT: return "MLX5_EVENT_TYPE_STALL_EVENT"; case MLX5_EVENT_TYPE_CMD: return "MLX5_EVENT_TYPE_CMD"; case MLX5_EVENT_TYPE_PAGE_REQUEST: return "MLX5_EVENT_TYPE_PAGE_REQUEST"; case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE: return "MLX5_EVENT_TYPE_NIC_VPORT_CHANGE"; case MLX5_EVENT_TYPE_FPGA_ERROR: return "MLX5_EVENT_TYPE_FPGA_ERROR"; case MLX5_EVENT_TYPE_FPGA_QP_ERROR: return "MLX5_EVENT_TYPE_FPGA_QP_ERROR"; case MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT: return "MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT"; case MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT: return "MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT"; default: return "Unrecognized event"; } } static enum mlx5_dev_event port_subtype_event(u8 subtype) { switch (subtype) { case MLX5_PORT_CHANGE_SUBTYPE_DOWN: return MLX5_DEV_EVENT_PORT_DOWN; case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE: return MLX5_DEV_EVENT_PORT_UP; case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED: return MLX5_DEV_EVENT_PORT_INITIALIZED; case MLX5_PORT_CHANGE_SUBTYPE_LID: return MLX5_DEV_EVENT_LID_CHANGE; case MLX5_PORT_CHANGE_SUBTYPE_PKEY: return MLX5_DEV_EVENT_PKEY_CHANGE; case MLX5_PORT_CHANGE_SUBTYPE_GUID: return MLX5_DEV_EVENT_GUID_CHANGE; case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG: return MLX5_DEV_EVENT_CLIENT_REREG; } return -1; } static enum mlx5_dev_event dcbx_subevent(u8 subtype) { switch (subtype) { case MLX5_DCBX_EVENT_SUBTYPE_ERROR_STATE_DCBX: return MLX5_DEV_EVENT_ERROR_STATE_DCBX; case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_CHANGE: return MLX5_DEV_EVENT_REMOTE_CONFIG_CHANGE; case MLX5_DCBX_EVENT_SUBTYPE_LOCAL_OPER_CHANGE: return MLX5_DEV_EVENT_LOCAL_OPER_CHANGE; case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_APP_PRIORITY_CHANGE: return MLX5_DEV_EVENT_REMOTE_CONFIG_APPLICATION_PRIORITY_CHANGE; } return -1; } static void eq_update_ci(struct mlx5_eq *eq, int arm) { __be32 __iomem *addr = eq->doorbell + (arm ? 0 : 2); u32 val = (eq->cons_index & 0xffffff) | (eq->eqn << 24); __raw_writel((__force u32) cpu_to_be32(val), addr); /* We still want ordering, just not swabbing, so add a barrier */ mb(); } static void mlx5_temp_warning_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe) { mlx5_core_warn(dev, "High temperature on sensors with bit set %#jx %#jx\n", (uintmax_t)be64_to_cpu(eqe->data.temp_warning.sensor_warning_msb), (uintmax_t)be64_to_cpu(eqe->data.temp_warning.sensor_warning_lsb)); } static int mlx5_eq_int(struct mlx5_core_dev *dev, struct mlx5_eq *eq) { struct mlx5_eqe *eqe; int eqes_found = 0; int set_ci = 0; u32 cqn; u32 rsn; u8 port; while ((eqe = next_eqe_sw(eq))) { /* * Make sure we read EQ entry contents after we've * checked the ownership bit. */ atomic_thread_fence_acq(); mlx5_core_dbg(eq->dev, "eqn %d, eqe type %s\n", eq->eqn, eqe_type_str(eqe->type)); switch (eqe->type) { case MLX5_EVENT_TYPE_COMP: mlx5_cq_completion(dev, eqe); break; case MLX5_EVENT_TYPE_PATH_MIG: case MLX5_EVENT_TYPE_COMM_EST: case MLX5_EVENT_TYPE_SQ_DRAINED: case MLX5_EVENT_TYPE_SRQ_LAST_WQE: case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: case MLX5_EVENT_TYPE_PATH_MIG_FAILED: case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff; mlx5_core_dbg(dev, "event %s(%d) arrived on resource 0x%x\n", eqe_type_str(eqe->type), eqe->type, rsn); mlx5_rsc_event(dev, rsn, eqe->type); break; case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT: case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR: rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff; mlx5_core_dbg(dev, "SRQ event %s(%d): srqn 0x%x\n", eqe_type_str(eqe->type), eqe->type, rsn); mlx5_srq_event(dev, rsn, eqe->type); break; case MLX5_EVENT_TYPE_CMD: if (dev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR) { mlx5_cmd_comp_handler(dev, be32_to_cpu(eqe->data.cmd.vector), MLX5_CMD_MODE_EVENTS); } break; case MLX5_EVENT_TYPE_PORT_CHANGE: port = (eqe->data.port.port >> 4) & 0xf; switch (eqe->sub_type) { case MLX5_PORT_CHANGE_SUBTYPE_DOWN: case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE: case MLX5_PORT_CHANGE_SUBTYPE_LID: case MLX5_PORT_CHANGE_SUBTYPE_PKEY: case MLX5_PORT_CHANGE_SUBTYPE_GUID: case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG: case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED: if (dev->event) dev->event(dev, port_subtype_event(eqe->sub_type), (unsigned long)port); break; default: mlx5_core_warn(dev, "Port event with unrecognized subtype: port %d, sub_type %d\n", port, eqe->sub_type); } break; case MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT: port = (eqe->data.port.port >> 4) & 0xf; switch (eqe->sub_type) { case MLX5_DCBX_EVENT_SUBTYPE_ERROR_STATE_DCBX: case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_CHANGE: case MLX5_DCBX_EVENT_SUBTYPE_LOCAL_OPER_CHANGE: case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_APP_PRIORITY_CHANGE: if (dev->event) dev->event(dev, dcbx_subevent(eqe->sub_type), 0); break; default: mlx5_core_warn(dev, "dcbx event with unrecognized subtype: port %d, sub_type %d\n", port, eqe->sub_type); } break; case MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT: mlx5_port_general_notification_event(dev, eqe); break; case MLX5_EVENT_TYPE_CQ_ERROR: cqn = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff; mlx5_core_warn(dev, "CQ error on CQN 0x%x, syndrom 0x%x\n", cqn, eqe->data.cq_err.syndrome); mlx5_cq_event(dev, cqn, eqe->type); break; case MLX5_EVENT_TYPE_PAGE_REQUEST: { u16 func_id = be16_to_cpu(eqe->data.req_pages.func_id); s32 npages = be32_to_cpu(eqe->data.req_pages.num_pages); mlx5_core_dbg(dev, "page request for func 0x%x, npages %d\n", func_id, npages); mlx5_core_req_pages_handler(dev, func_id, npages); } break; case MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT: mlx5_port_module_event(dev, eqe); break; case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE: { struct mlx5_eqe_vport_change *vc_eqe = &eqe->data.vport_change; u16 vport_num = be16_to_cpu(vc_eqe->vport_num); if (dev->event) dev->event(dev, MLX5_DEV_EVENT_VPORT_CHANGE, (unsigned long)vport_num); } if (dev->priv.eswitch != NULL) mlx5_eswitch_vport_event(dev->priv.eswitch, eqe); break; case MLX5_EVENT_TYPE_FPGA_ERROR: case MLX5_EVENT_TYPE_FPGA_QP_ERROR: mlx5_fpga_event(dev, eqe->type, &eqe->data.raw); break; case MLX5_EVENT_TYPE_TEMP_WARN_EVENT: mlx5_temp_warning_event(dev, eqe); break; default: mlx5_core_warn(dev, "Unhandled event 0x%x on EQ 0x%x\n", eqe->type, eq->eqn); break; } ++eq->cons_index; eqes_found = 1; ++set_ci; /* The HCA will think the queue has overflowed if we * don't tell it we've been processing events. We * create our EQs with MLX5_NUM_SPARE_EQE extra * entries, so we must update our consumer index at * least that often. */ if (unlikely(set_ci >= MLX5_NUM_SPARE_EQE)) { eq_update_ci(eq, 0); set_ci = 0; } } eq_update_ci(eq, 1); return eqes_found; } static irqreturn_t mlx5_msix_handler(int irq, void *eq_ptr) { struct mlx5_eq *eq = eq_ptr; struct mlx5_core_dev *dev = eq->dev; /* check if IRQs are not disabled */ if (likely(dev->priv.disable_irqs == 0)) mlx5_eq_int(dev, eq); /* MSI-X vectors always belong to us */ return IRQ_HANDLED; } static void init_eq_buf(struct mlx5_eq *eq) { struct mlx5_eqe *eqe; int i; for (i = 0; i < eq->nent; i++) { eqe = get_eqe(eq, i); eqe->owner = MLX5_EQE_OWNER_INIT_VAL; } } int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, int nent, u64 mask) { u32 out[MLX5_ST_SZ_DW(create_eq_out)] = {0}; struct mlx5_priv *priv = &dev->priv; __be64 *pas; void *eqc; int inlen; u32 *in; int err; eq->nent = roundup_pow_of_two(nent + MLX5_NUM_SPARE_EQE); eq->cons_index = 0; err = mlx5_buf_alloc(dev, eq->nent * MLX5_EQE_SIZE, 2 * PAGE_SIZE, &eq->buf); if (err) return err; init_eq_buf(eq); inlen = MLX5_ST_SZ_BYTES(create_eq_in) + MLX5_FLD_SZ_BYTES(create_eq_in, pas[0]) * eq->buf.npages; in = mlx5_vzalloc(inlen); if (!in) { err = -ENOMEM; goto err_buf; } pas = (__be64 *)MLX5_ADDR_OF(create_eq_in, in, pas); mlx5_fill_page_array(&eq->buf, pas); MLX5_SET(create_eq_in, in, opcode, MLX5_CMD_OP_CREATE_EQ); MLX5_SET64(create_eq_in, in, event_bitmask, mask); eqc = MLX5_ADDR_OF(create_eq_in, in, eq_context_entry); MLX5_SET(eqc, eqc, log_eq_size, ilog2(eq->nent)); MLX5_SET(eqc, eqc, uar_page, priv->uar->index); MLX5_SET(eqc, eqc, intr, vecidx); MLX5_SET(eqc, eqc, log_page_size, eq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT); err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out)); if (err) goto err_in; eq->eqn = MLX5_GET(create_eq_out, out, eq_number); eq->irqn = vecidx; eq->dev = dev; eq->doorbell = priv->uar->map + MLX5_EQ_DOORBEL_OFFSET; err = request_irq(priv->msix_arr[vecidx].vector, mlx5_msix_handler, 0, "mlx5_core", eq); if (err) goto err_eq; #ifdef RSS if (vecidx >= MLX5_EQ_VEC_COMP_BASE) { u8 bucket = vecidx - MLX5_EQ_VEC_COMP_BASE; err = bind_irq_to_cpu(priv->msix_arr[vecidx].vector, rss_getcpu(bucket % rss_getnumbuckets())); if (err) goto err_irq; } #else if (0) goto err_irq; #endif /* EQs are created in ARMED state */ eq_update_ci(eq, 1); kvfree(in); return 0; err_irq: free_irq(priv->msix_arr[vecidx].vector, eq); err_eq: mlx5_cmd_destroy_eq(dev, eq->eqn); err_in: kvfree(in); err_buf: mlx5_buf_free(dev, &eq->buf); return err; } EXPORT_SYMBOL_GPL(mlx5_create_map_eq); int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq) { int err; free_irq(dev->priv.msix_arr[eq->irqn].vector, eq); err = mlx5_cmd_destroy_eq(dev, eq->eqn); if (err) mlx5_core_warn(dev, "failed to destroy a previously created eq: eqn %d\n", eq->eqn); mlx5_buf_free(dev, &eq->buf); return err; } EXPORT_SYMBOL_GPL(mlx5_destroy_unmap_eq); int mlx5_eq_init(struct mlx5_core_dev *dev) { int err; spin_lock_init(&dev->priv.eq_table.lock); err = 0; return err; } void mlx5_eq_cleanup(struct mlx5_core_dev *dev) { } int mlx5_start_eqs(struct mlx5_core_dev *dev) { struct mlx5_eq_table *table = &dev->priv.eq_table; u64 async_event_mask = MLX5_ASYNC_EVENT_MASK; int err; if (MLX5_CAP_GEN(dev, port_module_event)) async_event_mask |= (1ull << MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT); if (MLX5_CAP_GEN(dev, nic_vport_change_event)) async_event_mask |= (1ull << MLX5_EVENT_TYPE_NIC_VPORT_CHANGE); if (MLX5_CAP_GEN(dev, dcbx)) async_event_mask |= (1ull << MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT); if (MLX5_CAP_GEN(dev, fpga)) async_event_mask |= (1ull << MLX5_EVENT_TYPE_FPGA_ERROR) | (1ull << MLX5_EVENT_TYPE_FPGA_QP_ERROR); if (MLX5_CAP_GEN(dev, temp_warn_event)) async_event_mask |= (1ull << MLX5_EVENT_TYPE_TEMP_WARN_EVENT); if (MLX5_CAP_GEN(dev, general_notification_event)) { async_event_mask |= (1ull << MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT); } err = mlx5_create_map_eq(dev, &table->cmd_eq, MLX5_EQ_VEC_CMD, MLX5_NUM_CMD_EQE, 1ull << MLX5_EVENT_TYPE_CMD); if (err) { mlx5_core_warn(dev, "failed to create cmd EQ %d\n", err); return err; } mlx5_cmd_use_events(dev); err = mlx5_create_map_eq(dev, &table->async_eq, MLX5_EQ_VEC_ASYNC, MLX5_NUM_ASYNC_EQE, async_event_mask); if (err) { mlx5_core_warn(dev, "failed to create async EQ %d\n", err); goto err1; } err = mlx5_create_map_eq(dev, &table->pages_eq, MLX5_EQ_VEC_PAGES, /* TODO: sriov max_vf + */ 1, 1 << MLX5_EVENT_TYPE_PAGE_REQUEST); if (err) { mlx5_core_warn(dev, "failed to create pages EQ %d\n", err); goto err2; } return err; err2: mlx5_destroy_unmap_eq(dev, &table->async_eq); err1: mlx5_cmd_use_polling(dev); mlx5_destroy_unmap_eq(dev, &table->cmd_eq); return err; } int mlx5_stop_eqs(struct mlx5_core_dev *dev) { struct mlx5_eq_table *table = &dev->priv.eq_table; int err; err = mlx5_destroy_unmap_eq(dev, &table->pages_eq); if (err) return err; mlx5_destroy_unmap_eq(dev, &table->async_eq); mlx5_cmd_use_polling(dev); err = mlx5_destroy_unmap_eq(dev, &table->cmd_eq); if (err) mlx5_cmd_use_events(dev); return err; } int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u32 *out, int outlen) { u32 in[MLX5_ST_SZ_DW(query_eq_in)] = {0}; memset(out, 0, outlen); MLX5_SET(query_eq_in, in, opcode, MLX5_CMD_OP_QUERY_EQ); MLX5_SET(query_eq_in, in, eq_number, eq->eqn); return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen); } EXPORT_SYMBOL_GPL(mlx5_core_eq_query); static const char *mlx5_port_module_event_error_type_to_string(u8 error_type) { switch (error_type) { case MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED: return "Power budget exceeded"; case MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE: return "Long Range for non MLNX cable"; case MLX5_MODULE_EVENT_ERROR_BUS_STUCK: return "Bus stuck(I2C or data shorted)"; case MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT: return "No EEPROM/retry timeout"; case MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST: return "Enforce part number list"; case MLX5_MODULE_EVENT_ERROR_UNSUPPORTED_CABLE: return "Unknown identifier"; case MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE: return "High Temperature"; case MLX5_MODULE_EVENT_ERROR_CABLE_IS_SHORTED: return "Bad or shorted cable/module"; case MLX5_MODULE_EVENT_ERROR_PMD_TYPE_NOT_ENABLED: return "PMD type is not enabled"; case MLX5_MODULE_EVENT_ERROR_LASTER_TEC_FAILURE: return "Laster_TEC_failure"; case MLX5_MODULE_EVENT_ERROR_HIGH_CURRENT: return "High_current"; case MLX5_MODULE_EVENT_ERROR_HIGH_VOLTAGE: return "High_voltage"; case MLX5_MODULE_EVENT_ERROR_PCIE_SYS_POWER_SLOT_EXCEEDED: return "pcie_system_power_slot_Exceeded"; case MLX5_MODULE_EVENT_ERROR_HIGH_POWER: return "High_power"; case MLX5_MODULE_EVENT_ERROR_MODULE_STATE_MACHINE_FAULT: return "Module_state_machine_fault"; default: return "Unknown error type"; } } unsigned int mlx5_query_module_status(struct mlx5_core_dev *dev, int module_num) { if (module_num < 0 || module_num >= MLX5_MAX_PORTS) return 0; /* undefined */ return dev->module_status[module_num]; } static void mlx5_port_module_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe) { unsigned int module_num; unsigned int module_status; unsigned int error_type; struct mlx5_eqe_port_module_event *module_event_eqe; module_event_eqe = &eqe->data.port_module_event; module_num = (unsigned int)module_event_eqe->module; module_status = (unsigned int)module_event_eqe->module_status & PORT_MODULE_EVENT_MODULE_STATUS_MASK; error_type = (unsigned int)module_event_eqe->error_type & PORT_MODULE_EVENT_ERROR_TYPE_MASK; if (module_status < MLX5_MODULE_STATUS_NUM) dev->priv.pme_stats.status_counters[module_status]++; switch (module_status) { case MLX5_MODULE_STATUS_PLUGGED_ENABLED: mlx5_core_info(dev, "Module %u, status: plugged and enabled\n", module_num); break; case MLX5_MODULE_STATUS_UNPLUGGED: mlx5_core_info(dev, "Module %u, status: unplugged\n", module_num); break; case MLX5_MODULE_STATUS_ERROR: mlx5_core_err(dev, "Module %u, status: error, %s (%d)\n", module_num, mlx5_port_module_event_error_type_to_string(error_type), error_type); if (error_type < MLX5_MODULE_EVENT_ERROR_NUM) dev->priv.pme_stats.error_counters[error_type]++; break; default: mlx5_core_info(dev, "Module %u, unknown status %d\n", module_num, module_status); } /* store module status */ if (module_num < MLX5_MAX_PORTS) dev->module_status[module_num] = module_status; } static void mlx5_port_general_notification_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe) { u8 port = (eqe->data.port.port >> 4) & 0xf; u32 rqn; struct mlx5_eqe_general_notification_event *general_event; switch (eqe->sub_type) { case MLX5_GEN_EVENT_SUBTYPE_DELAY_DROP_TIMEOUT: general_event = &eqe->data.general_notifications; rqn = be32_to_cpu(general_event->rq_user_index_delay_drop) & 0xffffff; break; case MLX5_GEN_EVENT_SUBTYPE_PCI_POWER_CHANGE_EVENT: mlx5_trigger_health_watchdog(dev); break; default: mlx5_core_warn(dev, "general event with unrecognized subtype: port %d, sub_type %d\n", port, eqe->sub_type); break; } } void mlx5_disable_interrupts(struct mlx5_core_dev *dev) { int nvec = dev->priv.eq_table.num_comp_vectors + MLX5_EQ_VEC_COMP_BASE; int x; for (x = 0; x != nvec; x++) disable_irq(dev->priv.msix_arr[x].vector); } void mlx5_poll_interrupts(struct mlx5_core_dev *dev) { struct mlx5_eq *eq; if (unlikely(dev->priv.disable_irqs != 0)) return; mlx5_eq_int(dev, &dev->priv.eq_table.cmd_eq); mlx5_eq_int(dev, &dev->priv.eq_table.async_eq); mlx5_eq_int(dev, &dev->priv.eq_table.pages_eq); list_for_each_entry(eq, &dev->priv.eq_table.comp_eqs_list, list) mlx5_eq_int(dev, eq); }