3481 lines
96 KiB
C
3481 lines
96 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/export.h>
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#include <linux/err.h>
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#include <linux/if_link.h>
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#include <linux/netdevice.h>
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#include <linux/completion.h>
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#include <linux/skbuff.h>
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#include <linux/etherdevice.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/gfp.h>
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#include <linux/random.h>
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#include <linux/jiffies.h>
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#include <linux/mutex.h>
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#include <linux/rcupdate.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/firmware.h>
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#include <asm/byteorder.h>
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#include <net/devlink.h>
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#include <trace/events/devlink.h>
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#include "core.h"
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#include "core_env.h"
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#include "item.h"
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#include "cmd.h"
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#include "port.h"
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#include "trap.h"
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#include "emad.h"
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#include "reg.h"
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#include "resources.h"
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#include "../mlxfw/mlxfw.h"
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static LIST_HEAD(mlxsw_core_driver_list);
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static DEFINE_SPINLOCK(mlxsw_core_driver_list_lock);
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static const char mlxsw_core_driver_name[] = "mlxsw_core";
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static struct workqueue_struct *mlxsw_wq;
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static struct workqueue_struct *mlxsw_owq;
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struct mlxsw_core_port {
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struct devlink_port devlink_port;
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void *port_driver_priv;
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u16 local_port;
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struct mlxsw_linecard *linecard;
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};
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void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
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{
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return mlxsw_core_port->port_driver_priv;
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}
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EXPORT_SYMBOL(mlxsw_core_port_driver_priv);
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static bool mlxsw_core_port_check(struct mlxsw_core_port *mlxsw_core_port)
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{
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return mlxsw_core_port->port_driver_priv != NULL;
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}
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struct mlxsw_core {
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struct mlxsw_driver *driver;
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const struct mlxsw_bus *bus;
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void *bus_priv;
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const struct mlxsw_bus_info *bus_info;
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struct workqueue_struct *emad_wq;
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struct list_head rx_listener_list;
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struct list_head event_listener_list;
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struct list_head irq_event_handler_list;
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struct mutex irq_event_handler_lock; /* Locks access to handlers list */
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struct {
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atomic64_t tid;
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struct list_head trans_list;
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spinlock_t trans_list_lock; /* protects trans_list writes */
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bool use_emad;
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bool enable_string_tlv;
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bool enable_latency_tlv;
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} emad;
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struct {
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u16 *mapping; /* lag_id+port_index to local_port mapping */
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} lag;
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struct mlxsw_res res;
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struct mlxsw_hwmon *hwmon;
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struct mlxsw_thermal *thermal;
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struct mlxsw_linecards *linecards;
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struct mlxsw_core_port *ports;
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unsigned int max_ports;
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atomic_t active_ports_count;
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bool fw_flash_in_progress;
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struct {
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struct devlink_health_reporter *fw_fatal;
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} health;
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struct mlxsw_env *env;
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unsigned long driver_priv[];
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/* driver_priv has to be always the last item */
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};
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struct mlxsw_linecards *mlxsw_core_linecards(struct mlxsw_core *mlxsw_core)
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{
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return mlxsw_core->linecards;
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}
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void mlxsw_core_linecards_set(struct mlxsw_core *mlxsw_core,
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struct mlxsw_linecards *linecards)
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{
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mlxsw_core->linecards = linecards;
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}
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#define MLXSW_PORT_MAX_PORTS_DEFAULT 0x40
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static u64 mlxsw_ports_occ_get(void *priv)
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{
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struct mlxsw_core *mlxsw_core = priv;
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return atomic_read(&mlxsw_core->active_ports_count);
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}
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static int mlxsw_core_resources_ports_register(struct mlxsw_core *mlxsw_core)
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{
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struct devlink *devlink = priv_to_devlink(mlxsw_core);
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struct devlink_resource_size_params ports_num_params;
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u32 max_ports;
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max_ports = mlxsw_core->max_ports - 1;
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devlink_resource_size_params_init(&ports_num_params, max_ports,
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max_ports, 1,
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DEVLINK_RESOURCE_UNIT_ENTRY);
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return devl_resource_register(devlink,
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DEVLINK_RESOURCE_GENERIC_NAME_PORTS,
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max_ports, MLXSW_CORE_RESOURCE_PORTS,
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DEVLINK_RESOURCE_ID_PARENT_TOP,
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&ports_num_params);
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}
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static int mlxsw_ports_init(struct mlxsw_core *mlxsw_core, bool reload)
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{
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struct devlink *devlink = priv_to_devlink(mlxsw_core);
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int err;
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/* Switch ports are numbered from 1 to queried value */
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if (MLXSW_CORE_RES_VALID(mlxsw_core, MAX_SYSTEM_PORT))
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mlxsw_core->max_ports = MLXSW_CORE_RES_GET(mlxsw_core,
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MAX_SYSTEM_PORT) + 1;
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else
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mlxsw_core->max_ports = MLXSW_PORT_MAX_PORTS_DEFAULT + 1;
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mlxsw_core->ports = kcalloc(mlxsw_core->max_ports,
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sizeof(struct mlxsw_core_port), GFP_KERNEL);
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if (!mlxsw_core->ports)
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return -ENOMEM;
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if (!reload) {
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err = mlxsw_core_resources_ports_register(mlxsw_core);
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if (err)
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goto err_resources_ports_register;
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}
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atomic_set(&mlxsw_core->active_ports_count, 0);
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devl_resource_occ_get_register(devlink, MLXSW_CORE_RESOURCE_PORTS,
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mlxsw_ports_occ_get, mlxsw_core);
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return 0;
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err_resources_ports_register:
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kfree(mlxsw_core->ports);
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return err;
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}
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static void mlxsw_ports_fini(struct mlxsw_core *mlxsw_core, bool reload)
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{
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struct devlink *devlink = priv_to_devlink(mlxsw_core);
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devl_resource_occ_get_unregister(devlink, MLXSW_CORE_RESOURCE_PORTS);
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if (!reload)
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devl_resources_unregister(priv_to_devlink(mlxsw_core));
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kfree(mlxsw_core->ports);
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}
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unsigned int mlxsw_core_max_ports(const struct mlxsw_core *mlxsw_core)
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{
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return mlxsw_core->max_ports;
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}
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EXPORT_SYMBOL(mlxsw_core_max_ports);
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int mlxsw_core_max_lag(struct mlxsw_core *mlxsw_core, u16 *p_max_lag)
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{
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struct mlxsw_driver *driver = mlxsw_core->driver;
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if (driver->profile->used_max_lag) {
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*p_max_lag = driver->profile->max_lag;
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return 0;
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}
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if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_LAG))
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return -EIO;
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*p_max_lag = MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG);
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return 0;
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}
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EXPORT_SYMBOL(mlxsw_core_max_lag);
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void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core)
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{
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return mlxsw_core->driver_priv;
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}
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EXPORT_SYMBOL(mlxsw_core_driver_priv);
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bool
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mlxsw_core_fw_rev_minor_subminor_validate(const struct mlxsw_fw_rev *rev,
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const struct mlxsw_fw_rev *req_rev)
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{
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return rev->minor > req_rev->minor ||
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(rev->minor == req_rev->minor &&
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rev->subminor >= req_rev->subminor);
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}
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EXPORT_SYMBOL(mlxsw_core_fw_rev_minor_subminor_validate);
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struct mlxsw_rx_listener_item {
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struct list_head list;
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struct mlxsw_rx_listener rxl;
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void *priv;
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bool enabled;
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};
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struct mlxsw_event_listener_item {
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struct list_head list;
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struct mlxsw_core *mlxsw_core;
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struct mlxsw_event_listener el;
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void *priv;
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};
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static const u8 mlxsw_core_trap_groups[] = {
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MLXSW_REG_HTGT_TRAP_GROUP_EMAD,
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MLXSW_REG_HTGT_TRAP_GROUP_CORE_EVENT,
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};
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static int mlxsw_core_trap_groups_set(struct mlxsw_core *mlxsw_core)
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{
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char htgt_pl[MLXSW_REG_HTGT_LEN];
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int err;
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int i;
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if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
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return 0;
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for (i = 0; i < ARRAY_SIZE(mlxsw_core_trap_groups); i++) {
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mlxsw_reg_htgt_pack(htgt_pl, mlxsw_core_trap_groups[i],
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MLXSW_REG_HTGT_INVALID_POLICER,
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MLXSW_REG_HTGT_DEFAULT_PRIORITY,
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MLXSW_REG_HTGT_DEFAULT_TC);
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err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
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if (err)
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return err;
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}
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return 0;
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}
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/******************
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* EMAD processing
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******************/
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/* emad_eth_hdr_dmac
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* Destination MAC in EMAD's Ethernet header.
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* Must be set to 01:02:c9:00:00:01
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*/
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MLXSW_ITEM_BUF(emad, eth_hdr, dmac, 0x00, 6);
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/* emad_eth_hdr_smac
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* Source MAC in EMAD's Ethernet header.
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* Must be set to 00:02:c9:01:02:03
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*/
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MLXSW_ITEM_BUF(emad, eth_hdr, smac, 0x06, 6);
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/* emad_eth_hdr_ethertype
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* Ethertype in EMAD's Ethernet header.
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* Must be set to 0x8932
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*/
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MLXSW_ITEM32(emad, eth_hdr, ethertype, 0x0C, 16, 16);
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/* emad_eth_hdr_mlx_proto
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* Mellanox protocol.
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* Must be set to 0x0.
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*/
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MLXSW_ITEM32(emad, eth_hdr, mlx_proto, 0x0C, 8, 8);
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/* emad_eth_hdr_ver
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* Mellanox protocol version.
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* Must be set to 0x0.
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*/
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MLXSW_ITEM32(emad, eth_hdr, ver, 0x0C, 4, 4);
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/* emad_op_tlv_type
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* Type of the TLV.
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* Must be set to 0x1 (operation TLV).
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*/
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MLXSW_ITEM32(emad, op_tlv, type, 0x00, 27, 5);
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/* emad_op_tlv_len
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* Length of the operation TLV in u32.
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* Must be set to 0x4.
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*/
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MLXSW_ITEM32(emad, op_tlv, len, 0x00, 16, 11);
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/* emad_op_tlv_dr
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* Direct route bit. Setting to 1 indicates the EMAD is a direct route
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* EMAD. DR TLV must follow.
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*
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* Note: Currently not supported and must not be set.
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*/
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MLXSW_ITEM32(emad, op_tlv, dr, 0x00, 15, 1);
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/* emad_op_tlv_status
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* Returned status in case of EMAD response. Must be set to 0 in case
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* of EMAD request.
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* 0x0 - success
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* 0x1 - device is busy. Requester should retry
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* 0x2 - Mellanox protocol version not supported
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* 0x3 - unknown TLV
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* 0x4 - register not supported
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* 0x5 - operation class not supported
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* 0x6 - EMAD method not supported
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* 0x7 - bad parameter (e.g. port out of range)
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* 0x8 - resource not available
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* 0x9 - message receipt acknowledgment. Requester should retry
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* 0x70 - internal error
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*/
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MLXSW_ITEM32(emad, op_tlv, status, 0x00, 8, 7);
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/* emad_op_tlv_register_id
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* Register ID of register within register TLV.
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*/
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MLXSW_ITEM32(emad, op_tlv, register_id, 0x04, 16, 16);
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/* emad_op_tlv_r
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* Response bit. Setting to 1 indicates Response, otherwise request.
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*/
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MLXSW_ITEM32(emad, op_tlv, r, 0x04, 15, 1);
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/* emad_op_tlv_method
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* EMAD method type.
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* 0x1 - query
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* 0x2 - write
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* 0x3 - send (currently not supported)
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* 0x4 - event
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*/
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MLXSW_ITEM32(emad, op_tlv, method, 0x04, 8, 7);
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/* emad_op_tlv_class
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* EMAD operation class. Must be set to 0x1 (REG_ACCESS).
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*/
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MLXSW_ITEM32(emad, op_tlv, class, 0x04, 0, 8);
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/* emad_op_tlv_tid
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* EMAD transaction ID. Used for pairing request and response EMADs.
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*/
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MLXSW_ITEM64(emad, op_tlv, tid, 0x08, 0, 64);
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/* emad_string_tlv_type
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* Type of the TLV.
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* Must be set to 0x2 (string TLV).
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*/
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MLXSW_ITEM32(emad, string_tlv, type, 0x00, 27, 5);
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/* emad_string_tlv_len
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* Length of the string TLV in u32.
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*/
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MLXSW_ITEM32(emad, string_tlv, len, 0x00, 16, 11);
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#define MLXSW_EMAD_STRING_TLV_STRING_LEN 128
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/* emad_string_tlv_string
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* String provided by the device's firmware in case of erroneous register access
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*/
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MLXSW_ITEM_BUF(emad, string_tlv, string, 0x04,
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MLXSW_EMAD_STRING_TLV_STRING_LEN);
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/* emad_latency_tlv_type
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* Type of the TLV.
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* Must be set to 0x4 (latency TLV).
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*/
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MLXSW_ITEM32(emad, latency_tlv, type, 0x00, 27, 5);
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/* emad_latency_tlv_len
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* Length of the latency TLV in u32.
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*/
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MLXSW_ITEM32(emad, latency_tlv, len, 0x00, 16, 11);
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/* emad_latency_tlv_latency_time
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* EMAD latency time in units of uSec.
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*/
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MLXSW_ITEM32(emad, latency_tlv, latency_time, 0x04, 0, 32);
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/* emad_reg_tlv_type
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* Type of the TLV.
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* Must be set to 0x3 (register TLV).
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*/
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MLXSW_ITEM32(emad, reg_tlv, type, 0x00, 27, 5);
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/* emad_reg_tlv_len
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* Length of the operation TLV in u32.
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*/
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MLXSW_ITEM32(emad, reg_tlv, len, 0x00, 16, 11);
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/* emad_end_tlv_type
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* Type of the TLV.
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* Must be set to 0x0 (end TLV).
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*/
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MLXSW_ITEM32(emad, end_tlv, type, 0x00, 27, 5);
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/* emad_end_tlv_len
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* Length of the end TLV in u32.
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* Must be set to 1.
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*/
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MLXSW_ITEM32(emad, end_tlv, len, 0x00, 16, 11);
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enum mlxsw_core_reg_access_type {
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MLXSW_CORE_REG_ACCESS_TYPE_QUERY,
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MLXSW_CORE_REG_ACCESS_TYPE_WRITE,
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};
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static inline const char *
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mlxsw_core_reg_access_type_str(enum mlxsw_core_reg_access_type type)
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{
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switch (type) {
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case MLXSW_CORE_REG_ACCESS_TYPE_QUERY:
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return "query";
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case MLXSW_CORE_REG_ACCESS_TYPE_WRITE:
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return "write";
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}
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BUG();
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}
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static void mlxsw_emad_pack_end_tlv(char *end_tlv)
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{
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mlxsw_emad_end_tlv_type_set(end_tlv, MLXSW_EMAD_TLV_TYPE_END);
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mlxsw_emad_end_tlv_len_set(end_tlv, MLXSW_EMAD_END_TLV_LEN);
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}
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static void mlxsw_emad_pack_reg_tlv(char *reg_tlv,
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const struct mlxsw_reg_info *reg,
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char *payload)
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{
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mlxsw_emad_reg_tlv_type_set(reg_tlv, MLXSW_EMAD_TLV_TYPE_REG);
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mlxsw_emad_reg_tlv_len_set(reg_tlv, reg->len / sizeof(u32) + 1);
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memcpy(reg_tlv + sizeof(u32), payload, reg->len);
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}
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static void mlxsw_emad_pack_string_tlv(char *string_tlv)
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{
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mlxsw_emad_string_tlv_type_set(string_tlv, MLXSW_EMAD_TLV_TYPE_STRING);
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mlxsw_emad_string_tlv_len_set(string_tlv, MLXSW_EMAD_STRING_TLV_LEN);
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}
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static void mlxsw_emad_pack_op_tlv(char *op_tlv,
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const struct mlxsw_reg_info *reg,
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enum mlxsw_core_reg_access_type type,
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u64 tid)
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{
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mlxsw_emad_op_tlv_type_set(op_tlv, MLXSW_EMAD_TLV_TYPE_OP);
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mlxsw_emad_op_tlv_len_set(op_tlv, MLXSW_EMAD_OP_TLV_LEN);
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mlxsw_emad_op_tlv_dr_set(op_tlv, 0);
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mlxsw_emad_op_tlv_status_set(op_tlv, 0);
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mlxsw_emad_op_tlv_register_id_set(op_tlv, reg->id);
|
|
mlxsw_emad_op_tlv_r_set(op_tlv, MLXSW_EMAD_OP_TLV_REQUEST);
|
|
if (type == MLXSW_CORE_REG_ACCESS_TYPE_QUERY)
|
|
mlxsw_emad_op_tlv_method_set(op_tlv,
|
|
MLXSW_EMAD_OP_TLV_METHOD_QUERY);
|
|
else
|
|
mlxsw_emad_op_tlv_method_set(op_tlv,
|
|
MLXSW_EMAD_OP_TLV_METHOD_WRITE);
|
|
mlxsw_emad_op_tlv_class_set(op_tlv,
|
|
MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS);
|
|
mlxsw_emad_op_tlv_tid_set(op_tlv, tid);
|
|
}
|
|
|
|
static void mlxsw_emad_pack_latency_tlv(char *latency_tlv)
|
|
{
|
|
mlxsw_emad_latency_tlv_type_set(latency_tlv, MLXSW_EMAD_TLV_TYPE_LATENCY);
|
|
mlxsw_emad_latency_tlv_len_set(latency_tlv, MLXSW_EMAD_LATENCY_TLV_LEN);
|
|
}
|
|
|
|
static int mlxsw_emad_construct_eth_hdr(struct sk_buff *skb)
|
|
{
|
|
char *eth_hdr = skb_push(skb, MLXSW_EMAD_ETH_HDR_LEN);
|
|
|
|
mlxsw_emad_eth_hdr_dmac_memcpy_to(eth_hdr, MLXSW_EMAD_EH_DMAC);
|
|
mlxsw_emad_eth_hdr_smac_memcpy_to(eth_hdr, MLXSW_EMAD_EH_SMAC);
|
|
mlxsw_emad_eth_hdr_ethertype_set(eth_hdr, MLXSW_EMAD_EH_ETHERTYPE);
|
|
mlxsw_emad_eth_hdr_mlx_proto_set(eth_hdr, MLXSW_EMAD_EH_MLX_PROTO);
|
|
mlxsw_emad_eth_hdr_ver_set(eth_hdr, MLXSW_EMAD_EH_PROTO_VERSION);
|
|
|
|
skb_reset_mac_header(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlxsw_emad_construct(const struct mlxsw_core *mlxsw_core,
|
|
struct sk_buff *skb,
|
|
const struct mlxsw_reg_info *reg,
|
|
char *payload,
|
|
enum mlxsw_core_reg_access_type type, u64 tid)
|
|
{
|
|
char *buf;
|
|
|
|
buf = skb_push(skb, MLXSW_EMAD_END_TLV_LEN * sizeof(u32));
|
|
mlxsw_emad_pack_end_tlv(buf);
|
|
|
|
buf = skb_push(skb, reg->len + sizeof(u32));
|
|
mlxsw_emad_pack_reg_tlv(buf, reg, payload);
|
|
|
|
if (mlxsw_core->emad.enable_latency_tlv) {
|
|
buf = skb_push(skb, MLXSW_EMAD_LATENCY_TLV_LEN * sizeof(u32));
|
|
mlxsw_emad_pack_latency_tlv(buf);
|
|
}
|
|
|
|
if (mlxsw_core->emad.enable_string_tlv) {
|
|
buf = skb_push(skb, MLXSW_EMAD_STRING_TLV_LEN * sizeof(u32));
|
|
mlxsw_emad_pack_string_tlv(buf);
|
|
}
|
|
|
|
buf = skb_push(skb, MLXSW_EMAD_OP_TLV_LEN * sizeof(u32));
|
|
mlxsw_emad_pack_op_tlv(buf, reg, type, tid);
|
|
|
|
mlxsw_emad_construct_eth_hdr(skb);
|
|
}
|
|
|
|
struct mlxsw_emad_tlv_offsets {
|
|
u16 op_tlv;
|
|
u16 string_tlv;
|
|
u16 latency_tlv;
|
|
u16 reg_tlv;
|
|
};
|
|
|
|
static bool mlxsw_emad_tlv_is_string_tlv(const char *tlv)
|
|
{
|
|
u8 tlv_type = mlxsw_emad_string_tlv_type_get(tlv);
|
|
|
|
return tlv_type == MLXSW_EMAD_TLV_TYPE_STRING;
|
|
}
|
|
|
|
static bool mlxsw_emad_tlv_is_latency_tlv(const char *tlv)
|
|
{
|
|
u8 tlv_type = mlxsw_emad_latency_tlv_type_get(tlv);
|
|
|
|
return tlv_type == MLXSW_EMAD_TLV_TYPE_LATENCY;
|
|
}
|
|
|
|
static void mlxsw_emad_tlv_parse(struct sk_buff *skb)
|
|
{
|
|
struct mlxsw_emad_tlv_offsets *offsets =
|
|
(struct mlxsw_emad_tlv_offsets *) skb->cb;
|
|
|
|
offsets->op_tlv = MLXSW_EMAD_ETH_HDR_LEN;
|
|
offsets->string_tlv = 0;
|
|
offsets->latency_tlv = 0;
|
|
|
|
offsets->reg_tlv = MLXSW_EMAD_ETH_HDR_LEN +
|
|
MLXSW_EMAD_OP_TLV_LEN * sizeof(u32);
|
|
|
|
/* If string TLV is present, it must come after the operation TLV. */
|
|
if (mlxsw_emad_tlv_is_string_tlv(skb->data + offsets->reg_tlv)) {
|
|
offsets->string_tlv = offsets->reg_tlv;
|
|
offsets->reg_tlv += MLXSW_EMAD_STRING_TLV_LEN * sizeof(u32);
|
|
}
|
|
|
|
if (mlxsw_emad_tlv_is_latency_tlv(skb->data + offsets->reg_tlv)) {
|
|
offsets->latency_tlv = offsets->reg_tlv;
|
|
offsets->reg_tlv += MLXSW_EMAD_LATENCY_TLV_LEN * sizeof(u32);
|
|
}
|
|
}
|
|
|
|
static char *mlxsw_emad_op_tlv(const struct sk_buff *skb)
|
|
{
|
|
struct mlxsw_emad_tlv_offsets *offsets =
|
|
(struct mlxsw_emad_tlv_offsets *) skb->cb;
|
|
|
|
return ((char *) (skb->data + offsets->op_tlv));
|
|
}
|
|
|
|
static char *mlxsw_emad_string_tlv(const struct sk_buff *skb)
|
|
{
|
|
struct mlxsw_emad_tlv_offsets *offsets =
|
|
(struct mlxsw_emad_tlv_offsets *) skb->cb;
|
|
|
|
if (!offsets->string_tlv)
|
|
return NULL;
|
|
|
|
return ((char *) (skb->data + offsets->string_tlv));
|
|
}
|
|
|
|
static char *mlxsw_emad_reg_tlv(const struct sk_buff *skb)
|
|
{
|
|
struct mlxsw_emad_tlv_offsets *offsets =
|
|
(struct mlxsw_emad_tlv_offsets *) skb->cb;
|
|
|
|
return ((char *) (skb->data + offsets->reg_tlv));
|
|
}
|
|
|
|
static char *mlxsw_emad_reg_payload(const char *reg_tlv)
|
|
{
|
|
return ((char *) (reg_tlv + sizeof(u32)));
|
|
}
|
|
|
|
static char *mlxsw_emad_reg_payload_cmd(const char *mbox)
|
|
{
|
|
return ((char *) (mbox + (MLXSW_EMAD_OP_TLV_LEN + 1) * sizeof(u32)));
|
|
}
|
|
|
|
static u64 mlxsw_emad_get_tid(const struct sk_buff *skb)
|
|
{
|
|
char *op_tlv;
|
|
|
|
op_tlv = mlxsw_emad_op_tlv(skb);
|
|
return mlxsw_emad_op_tlv_tid_get(op_tlv);
|
|
}
|
|
|
|
static bool mlxsw_emad_is_resp(const struct sk_buff *skb)
|
|
{
|
|
char *op_tlv;
|
|
|
|
op_tlv = mlxsw_emad_op_tlv(skb);
|
|
return (mlxsw_emad_op_tlv_r_get(op_tlv) == MLXSW_EMAD_OP_TLV_RESPONSE);
|
|
}
|
|
|
|
static int mlxsw_emad_process_status(char *op_tlv,
|
|
enum mlxsw_emad_op_tlv_status *p_status)
|
|
{
|
|
*p_status = mlxsw_emad_op_tlv_status_get(op_tlv);
|
|
|
|
switch (*p_status) {
|
|
case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
|
|
return 0;
|
|
case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
|
|
return -EAGAIN;
|
|
case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
|
|
case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
|
|
default:
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
static int
|
|
mlxsw_emad_process_status_skb(struct sk_buff *skb,
|
|
enum mlxsw_emad_op_tlv_status *p_status)
|
|
{
|
|
return mlxsw_emad_process_status(mlxsw_emad_op_tlv(skb), p_status);
|
|
}
|
|
|
|
struct mlxsw_reg_trans {
|
|
struct list_head list;
|
|
struct list_head bulk_list;
|
|
struct mlxsw_core *core;
|
|
struct sk_buff *tx_skb;
|
|
struct mlxsw_tx_info tx_info;
|
|
struct delayed_work timeout_dw;
|
|
unsigned int retries;
|
|
u64 tid;
|
|
struct completion completion;
|
|
atomic_t active;
|
|
mlxsw_reg_trans_cb_t *cb;
|
|
unsigned long cb_priv;
|
|
const struct mlxsw_reg_info *reg;
|
|
enum mlxsw_core_reg_access_type type;
|
|
int err;
|
|
char *emad_err_string;
|
|
enum mlxsw_emad_op_tlv_status emad_status;
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
static void mlxsw_emad_process_string_tlv(const struct sk_buff *skb,
|
|
struct mlxsw_reg_trans *trans)
|
|
{
|
|
char *string_tlv;
|
|
char *string;
|
|
|
|
string_tlv = mlxsw_emad_string_tlv(skb);
|
|
if (!string_tlv)
|
|
return;
|
|
|
|
trans->emad_err_string = kzalloc(MLXSW_EMAD_STRING_TLV_STRING_LEN,
|
|
GFP_ATOMIC);
|
|
if (!trans->emad_err_string)
|
|
return;
|
|
|
|
string = mlxsw_emad_string_tlv_string_data(string_tlv);
|
|
strscpy(trans->emad_err_string, string,
|
|
MLXSW_EMAD_STRING_TLV_STRING_LEN);
|
|
}
|
|
|
|
#define MLXSW_EMAD_TIMEOUT_DURING_FW_FLASH_MS 3000
|
|
#define MLXSW_EMAD_TIMEOUT_MS 200
|
|
|
|
static void mlxsw_emad_trans_timeout_schedule(struct mlxsw_reg_trans *trans)
|
|
{
|
|
unsigned long timeout = msecs_to_jiffies(MLXSW_EMAD_TIMEOUT_MS);
|
|
|
|
if (trans->core->fw_flash_in_progress)
|
|
timeout = msecs_to_jiffies(MLXSW_EMAD_TIMEOUT_DURING_FW_FLASH_MS);
|
|
|
|
queue_delayed_work(trans->core->emad_wq, &trans->timeout_dw,
|
|
timeout << trans->retries);
|
|
}
|
|
|
|
static int mlxsw_emad_transmit(struct mlxsw_core *mlxsw_core,
|
|
struct mlxsw_reg_trans *trans)
|
|
{
|
|
struct sk_buff *skb;
|
|
int err;
|
|
|
|
skb = skb_clone(trans->tx_skb, GFP_KERNEL);
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
|
|
trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), false, 0,
|
|
skb->data + mlxsw_core->driver->txhdr_len,
|
|
skb->len - mlxsw_core->driver->txhdr_len);
|
|
|
|
atomic_set(&trans->active, 1);
|
|
err = mlxsw_core_skb_transmit(mlxsw_core, skb, &trans->tx_info);
|
|
if (err) {
|
|
dev_kfree_skb(skb);
|
|
return err;
|
|
}
|
|
mlxsw_emad_trans_timeout_schedule(trans);
|
|
return 0;
|
|
}
|
|
|
|
static void mlxsw_emad_trans_finish(struct mlxsw_reg_trans *trans, int err)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = trans->core;
|
|
|
|
dev_kfree_skb(trans->tx_skb);
|
|
spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
list_del_rcu(&trans->list);
|
|
spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
trans->err = err;
|
|
complete(&trans->completion);
|
|
}
|
|
|
|
static void mlxsw_emad_transmit_retry(struct mlxsw_core *mlxsw_core,
|
|
struct mlxsw_reg_trans *trans)
|
|
{
|
|
int err;
|
|
|
|
if (trans->retries < MLXSW_EMAD_MAX_RETRY) {
|
|
trans->retries++;
|
|
err = mlxsw_emad_transmit(trans->core, trans);
|
|
if (err == 0)
|
|
return;
|
|
|
|
if (!atomic_dec_and_test(&trans->active))
|
|
return;
|
|
} else {
|
|
err = -EIO;
|
|
}
|
|
mlxsw_emad_trans_finish(trans, err);
|
|
}
|
|
|
|
static void mlxsw_emad_trans_timeout_work(struct work_struct *work)
|
|
{
|
|
struct mlxsw_reg_trans *trans = container_of(work,
|
|
struct mlxsw_reg_trans,
|
|
timeout_dw.work);
|
|
|
|
if (!atomic_dec_and_test(&trans->active))
|
|
return;
|
|
|
|
mlxsw_emad_transmit_retry(trans->core, trans);
|
|
}
|
|
|
|
static void mlxsw_emad_process_response(struct mlxsw_core *mlxsw_core,
|
|
struct mlxsw_reg_trans *trans,
|
|
struct sk_buff *skb)
|
|
{
|
|
int err;
|
|
|
|
if (!atomic_dec_and_test(&trans->active))
|
|
return;
|
|
|
|
err = mlxsw_emad_process_status_skb(skb, &trans->emad_status);
|
|
if (err == -EAGAIN) {
|
|
mlxsw_emad_transmit_retry(mlxsw_core, trans);
|
|
} else {
|
|
if (err == 0) {
|
|
char *reg_tlv = mlxsw_emad_reg_tlv(skb);
|
|
|
|
if (trans->cb)
|
|
trans->cb(mlxsw_core,
|
|
mlxsw_emad_reg_payload(reg_tlv),
|
|
trans->reg->len, trans->cb_priv);
|
|
} else {
|
|
mlxsw_emad_process_string_tlv(skb, trans);
|
|
}
|
|
mlxsw_emad_trans_finish(trans, err);
|
|
}
|
|
}
|
|
|
|
/* called with rcu read lock held */
|
|
static void mlxsw_emad_rx_listener_func(struct sk_buff *skb, u16 local_port,
|
|
void *priv)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = priv;
|
|
struct mlxsw_reg_trans *trans;
|
|
|
|
trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), true, 0,
|
|
skb->data, skb->len);
|
|
|
|
mlxsw_emad_tlv_parse(skb);
|
|
|
|
if (!mlxsw_emad_is_resp(skb))
|
|
goto free_skb;
|
|
|
|
list_for_each_entry_rcu(trans, &mlxsw_core->emad.trans_list, list) {
|
|
if (mlxsw_emad_get_tid(skb) == trans->tid) {
|
|
mlxsw_emad_process_response(mlxsw_core, trans, skb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
free_skb:
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
static const struct mlxsw_listener mlxsw_emad_rx_listener =
|
|
MLXSW_RXL(mlxsw_emad_rx_listener_func, ETHEMAD, TRAP_TO_CPU, false,
|
|
EMAD, DISCARD);
|
|
|
|
static int mlxsw_emad_tlv_enable(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
char mgir_pl[MLXSW_REG_MGIR_LEN];
|
|
bool string_tlv, latency_tlv;
|
|
int err;
|
|
|
|
mlxsw_reg_mgir_pack(mgir_pl);
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mgir), mgir_pl);
|
|
if (err)
|
|
return err;
|
|
|
|
string_tlv = mlxsw_reg_mgir_fw_info_string_tlv_get(mgir_pl);
|
|
mlxsw_core->emad.enable_string_tlv = string_tlv;
|
|
|
|
latency_tlv = mlxsw_reg_mgir_fw_info_latency_tlv_get(mgir_pl);
|
|
mlxsw_core->emad.enable_latency_tlv = latency_tlv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mlxsw_emad_tlv_disable(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
mlxsw_core->emad.enable_latency_tlv = false;
|
|
mlxsw_core->emad.enable_string_tlv = false;
|
|
}
|
|
|
|
static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
struct workqueue_struct *emad_wq;
|
|
u64 tid;
|
|
int err;
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return 0;
|
|
|
|
emad_wq = alloc_workqueue("mlxsw_core_emad", 0, 0);
|
|
if (!emad_wq)
|
|
return -ENOMEM;
|
|
mlxsw_core->emad_wq = emad_wq;
|
|
|
|
/* Set the upper 32 bits of the transaction ID field to a random
|
|
* number. This allows us to discard EMADs addressed to other
|
|
* devices.
|
|
*/
|
|
get_random_bytes(&tid, 4);
|
|
tid <<= 32;
|
|
atomic64_set(&mlxsw_core->emad.tid, tid);
|
|
|
|
INIT_LIST_HEAD(&mlxsw_core->emad.trans_list);
|
|
spin_lock_init(&mlxsw_core->emad.trans_list_lock);
|
|
|
|
err = mlxsw_core_trap_register(mlxsw_core, &mlxsw_emad_rx_listener,
|
|
mlxsw_core);
|
|
if (err)
|
|
goto err_trap_register;
|
|
|
|
err = mlxsw_emad_tlv_enable(mlxsw_core);
|
|
if (err)
|
|
goto err_emad_tlv_enable;
|
|
|
|
mlxsw_core->emad.use_emad = true;
|
|
|
|
return 0;
|
|
|
|
err_emad_tlv_enable:
|
|
mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
|
|
mlxsw_core);
|
|
err_trap_register:
|
|
destroy_workqueue(mlxsw_core->emad_wq);
|
|
return err;
|
|
}
|
|
|
|
static void mlxsw_emad_fini(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return;
|
|
|
|
mlxsw_core->emad.use_emad = false;
|
|
mlxsw_emad_tlv_disable(mlxsw_core);
|
|
mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
|
|
mlxsw_core);
|
|
destroy_workqueue(mlxsw_core->emad_wq);
|
|
}
|
|
|
|
static struct sk_buff *mlxsw_emad_alloc(const struct mlxsw_core *mlxsw_core,
|
|
u16 reg_len)
|
|
{
|
|
struct sk_buff *skb;
|
|
u16 emad_len;
|
|
|
|
emad_len = (reg_len + sizeof(u32) + MLXSW_EMAD_ETH_HDR_LEN +
|
|
(MLXSW_EMAD_OP_TLV_LEN + MLXSW_EMAD_END_TLV_LEN) *
|
|
sizeof(u32) + mlxsw_core->driver->txhdr_len);
|
|
if (mlxsw_core->emad.enable_string_tlv)
|
|
emad_len += MLXSW_EMAD_STRING_TLV_LEN * sizeof(u32);
|
|
if (mlxsw_core->emad.enable_latency_tlv)
|
|
emad_len += MLXSW_EMAD_LATENCY_TLV_LEN * sizeof(u32);
|
|
if (emad_len > MLXSW_EMAD_MAX_FRAME_LEN)
|
|
return NULL;
|
|
|
|
skb = netdev_alloc_skb(NULL, emad_len);
|
|
if (!skb)
|
|
return NULL;
|
|
memset(skb->data, 0, emad_len);
|
|
skb_reserve(skb, emad_len);
|
|
|
|
return skb;
|
|
}
|
|
|
|
static int mlxsw_emad_reg_access(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg,
|
|
char *payload,
|
|
enum mlxsw_core_reg_access_type type,
|
|
struct mlxsw_reg_trans *trans,
|
|
struct list_head *bulk_list,
|
|
mlxsw_reg_trans_cb_t *cb,
|
|
unsigned long cb_priv, u64 tid)
|
|
{
|
|
struct sk_buff *skb;
|
|
int err;
|
|
|
|
dev_dbg(mlxsw_core->bus_info->dev, "EMAD reg access (tid=%llx,reg_id=%x(%s),type=%s)\n",
|
|
tid, reg->id, mlxsw_reg_id_str(reg->id),
|
|
mlxsw_core_reg_access_type_str(type));
|
|
|
|
skb = mlxsw_emad_alloc(mlxsw_core, reg->len);
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
|
|
list_add_tail(&trans->bulk_list, bulk_list);
|
|
trans->core = mlxsw_core;
|
|
trans->tx_skb = skb;
|
|
trans->tx_info.local_port = MLXSW_PORT_CPU_PORT;
|
|
trans->tx_info.is_emad = true;
|
|
INIT_DELAYED_WORK(&trans->timeout_dw, mlxsw_emad_trans_timeout_work);
|
|
trans->tid = tid;
|
|
init_completion(&trans->completion);
|
|
trans->cb = cb;
|
|
trans->cb_priv = cb_priv;
|
|
trans->reg = reg;
|
|
trans->type = type;
|
|
|
|
mlxsw_emad_construct(mlxsw_core, skb, reg, payload, type, trans->tid);
|
|
mlxsw_core->driver->txhdr_construct(skb, &trans->tx_info);
|
|
|
|
spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
list_add_tail_rcu(&trans->list, &mlxsw_core->emad.trans_list);
|
|
spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
err = mlxsw_emad_transmit(mlxsw_core, trans);
|
|
if (err)
|
|
goto err_out;
|
|
return 0;
|
|
|
|
err_out:
|
|
spin_lock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
list_del_rcu(&trans->list);
|
|
spin_unlock_bh(&mlxsw_core->emad.trans_list_lock);
|
|
list_del(&trans->bulk_list);
|
|
dev_kfree_skb(trans->tx_skb);
|
|
return err;
|
|
}
|
|
|
|
/*****************
|
|
* Core functions
|
|
*****************/
|
|
|
|
int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver)
|
|
{
|
|
spin_lock(&mlxsw_core_driver_list_lock);
|
|
list_add_tail(&mlxsw_driver->list, &mlxsw_core_driver_list);
|
|
spin_unlock(&mlxsw_core_driver_list_lock);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_driver_register);
|
|
|
|
void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver)
|
|
{
|
|
spin_lock(&mlxsw_core_driver_list_lock);
|
|
list_del(&mlxsw_driver->list);
|
|
spin_unlock(&mlxsw_core_driver_list_lock);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_driver_unregister);
|
|
|
|
static struct mlxsw_driver *__driver_find(const char *kind)
|
|
{
|
|
struct mlxsw_driver *mlxsw_driver;
|
|
|
|
list_for_each_entry(mlxsw_driver, &mlxsw_core_driver_list, list) {
|
|
if (strcmp(mlxsw_driver->kind, kind) == 0)
|
|
return mlxsw_driver;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static struct mlxsw_driver *mlxsw_core_driver_get(const char *kind)
|
|
{
|
|
struct mlxsw_driver *mlxsw_driver;
|
|
|
|
spin_lock(&mlxsw_core_driver_list_lock);
|
|
mlxsw_driver = __driver_find(kind);
|
|
spin_unlock(&mlxsw_core_driver_list_lock);
|
|
return mlxsw_driver;
|
|
}
|
|
|
|
int mlxsw_core_fw_flash(struct mlxsw_core *mlxsw_core,
|
|
struct mlxfw_dev *mlxfw_dev,
|
|
const struct firmware *firmware,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
int err;
|
|
|
|
mlxsw_core->fw_flash_in_progress = true;
|
|
err = mlxfw_firmware_flash(mlxfw_dev, firmware, extack);
|
|
mlxsw_core->fw_flash_in_progress = false;
|
|
|
|
return err;
|
|
}
|
|
|
|
struct mlxsw_core_fw_info {
|
|
struct mlxfw_dev mlxfw_dev;
|
|
struct mlxsw_core *mlxsw_core;
|
|
};
|
|
|
|
static int mlxsw_core_fw_component_query(struct mlxfw_dev *mlxfw_dev,
|
|
u16 component_index, u32 *p_max_size,
|
|
u8 *p_align_bits, u16 *p_max_write_size)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcqi_pl[MLXSW_REG_MCQI_LEN];
|
|
int err;
|
|
|
|
mlxsw_reg_mcqi_pack(mcqi_pl, component_index);
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mcqi), mcqi_pl);
|
|
if (err)
|
|
return err;
|
|
mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits, p_max_write_size);
|
|
|
|
*p_align_bits = max_t(u8, *p_align_bits, 2);
|
|
*p_max_write_size = min_t(u16, *p_max_write_size, MLXSW_REG_MCDA_MAX_DATA_LEN);
|
|
return 0;
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
u8 control_state;
|
|
int err;
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0);
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
if (err)
|
|
return err;
|
|
|
|
mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state);
|
|
if (control_state != MLXFW_FSM_STATE_IDLE)
|
|
return -EBUSY;
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE, 0, *fwhandle, 0);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_component_update(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
|
|
u16 component_index, u32 component_size)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT,
|
|
component_index, fwhandle, component_size);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_block_download(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
|
|
u8 *data, u16 size, u32 offset)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcda_pl[MLXSW_REG_MCDA_LEN];
|
|
|
|
mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcda), mcda_pl);
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_component_verify(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
|
|
u16 component_index)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT,
|
|
component_index, fwhandle, 0);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0, fwhandle, 0);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static int mlxsw_core_fw_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
|
|
enum mlxfw_fsm_state *fsm_state,
|
|
enum mlxfw_fsm_state_err *fsm_state_err)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
u8 control_state;
|
|
u8 error_code;
|
|
int err;
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0);
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
if (err)
|
|
return err;
|
|
|
|
mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state);
|
|
*fsm_state = control_state;
|
|
*fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code, MLXFW_FSM_STATE_ERR_MAX);
|
|
return 0;
|
|
}
|
|
|
|
static void mlxsw_core_fw_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0, fwhandle, 0);
|
|
mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static void mlxsw_core_fw_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
|
|
{
|
|
struct mlxsw_core_fw_info *mlxsw_core_fw_info =
|
|
container_of(mlxfw_dev, struct mlxsw_core_fw_info, mlxfw_dev);
|
|
struct mlxsw_core *mlxsw_core = mlxsw_core_fw_info->mlxsw_core;
|
|
char mcc_pl[MLXSW_REG_MCC_LEN];
|
|
|
|
mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0, fwhandle, 0);
|
|
mlxsw_reg_write(mlxsw_core, MLXSW_REG(mcc), mcc_pl);
|
|
}
|
|
|
|
static const struct mlxfw_dev_ops mlxsw_core_fw_mlxsw_dev_ops = {
|
|
.component_query = mlxsw_core_fw_component_query,
|
|
.fsm_lock = mlxsw_core_fw_fsm_lock,
|
|
.fsm_component_update = mlxsw_core_fw_fsm_component_update,
|
|
.fsm_block_download = mlxsw_core_fw_fsm_block_download,
|
|
.fsm_component_verify = mlxsw_core_fw_fsm_component_verify,
|
|
.fsm_activate = mlxsw_core_fw_fsm_activate,
|
|
.fsm_query_state = mlxsw_core_fw_fsm_query_state,
|
|
.fsm_cancel = mlxsw_core_fw_fsm_cancel,
|
|
.fsm_release = mlxsw_core_fw_fsm_release,
|
|
};
|
|
|
|
static int mlxsw_core_dev_fw_flash(struct mlxsw_core *mlxsw_core,
|
|
const struct firmware *firmware,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core_fw_info mlxsw_core_fw_info = {
|
|
.mlxfw_dev = {
|
|
.ops = &mlxsw_core_fw_mlxsw_dev_ops,
|
|
.psid = mlxsw_core->bus_info->psid,
|
|
.psid_size = strlen(mlxsw_core->bus_info->psid),
|
|
.devlink = priv_to_devlink(mlxsw_core),
|
|
},
|
|
.mlxsw_core = mlxsw_core
|
|
};
|
|
|
|
return mlxsw_core_fw_flash(mlxsw_core, &mlxsw_core_fw_info.mlxfw_dev,
|
|
firmware, extack);
|
|
}
|
|
|
|
static int mlxsw_core_fw_rev_validate(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_bus_info *mlxsw_bus_info,
|
|
const struct mlxsw_fw_rev *req_rev,
|
|
const char *filename)
|
|
{
|
|
const struct mlxsw_fw_rev *rev = &mlxsw_bus_info->fw_rev;
|
|
union devlink_param_value value;
|
|
const struct firmware *firmware;
|
|
int err;
|
|
|
|
/* Don't check if driver does not require it */
|
|
if (!req_rev || !filename)
|
|
return 0;
|
|
|
|
/* Don't check if devlink 'fw_load_policy' param is 'flash' */
|
|
err = devl_param_driverinit_value_get(priv_to_devlink(mlxsw_core),
|
|
DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
|
|
&value);
|
|
if (err)
|
|
return err;
|
|
if (value.vu8 == DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH)
|
|
return 0;
|
|
|
|
/* Validate driver & FW are compatible */
|
|
if (rev->major != req_rev->major) {
|
|
WARN(1, "Mismatch in major FW version [%d:%d] is never expected; Please contact support\n",
|
|
rev->major, req_rev->major);
|
|
return -EINVAL;
|
|
}
|
|
if (mlxsw_core_fw_rev_minor_subminor_validate(rev, req_rev))
|
|
return 0;
|
|
|
|
dev_err(mlxsw_bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver (required >= %d.%d.%d)\n",
|
|
rev->major, rev->minor, rev->subminor, req_rev->major,
|
|
req_rev->minor, req_rev->subminor);
|
|
dev_info(mlxsw_bus_info->dev, "Flashing firmware using file %s\n", filename);
|
|
|
|
err = request_firmware_direct(&firmware, filename, mlxsw_bus_info->dev);
|
|
if (err) {
|
|
dev_err(mlxsw_bus_info->dev, "Could not request firmware file %s\n", filename);
|
|
return err;
|
|
}
|
|
|
|
err = mlxsw_core_dev_fw_flash(mlxsw_core, firmware, NULL);
|
|
release_firmware(firmware);
|
|
if (err)
|
|
dev_err(mlxsw_bus_info->dev, "Could not upgrade firmware\n");
|
|
|
|
/* On FW flash success, tell the caller FW reset is needed
|
|
* if current FW supports it.
|
|
*/
|
|
if (rev->minor >= req_rev->can_reset_minor)
|
|
return err ? err : -EAGAIN;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int mlxsw_core_fw_flash_update(struct mlxsw_core *mlxsw_core,
|
|
struct devlink_flash_update_params *params,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return mlxsw_core_dev_fw_flash(mlxsw_core, params->fw, extack);
|
|
}
|
|
|
|
static int mlxsw_core_devlink_param_fw_load_policy_validate(struct devlink *devlink, u32 id,
|
|
union devlink_param_value val,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
if (val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER &&
|
|
val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH) {
|
|
NL_SET_ERR_MSG_MOD(extack, "'fw_load_policy' must be 'driver' or 'flash'");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct devlink_param mlxsw_core_fw_devlink_params[] = {
|
|
DEVLINK_PARAM_GENERIC(FW_LOAD_POLICY, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), NULL, NULL,
|
|
mlxsw_core_devlink_param_fw_load_policy_validate),
|
|
};
|
|
|
|
static int mlxsw_core_fw_params_register(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
struct devlink *devlink = priv_to_devlink(mlxsw_core);
|
|
union devlink_param_value value;
|
|
int err;
|
|
|
|
err = devl_params_register(devlink, mlxsw_core_fw_devlink_params,
|
|
ARRAY_SIZE(mlxsw_core_fw_devlink_params));
|
|
if (err)
|
|
return err;
|
|
|
|
value.vu8 = DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER;
|
|
devl_param_driverinit_value_set(devlink,
|
|
DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
|
|
value);
|
|
return 0;
|
|
}
|
|
|
|
static void mlxsw_core_fw_params_unregister(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
devl_params_unregister(priv_to_devlink(mlxsw_core), mlxsw_core_fw_devlink_params,
|
|
ARRAY_SIZE(mlxsw_core_fw_devlink_params));
|
|
}
|
|
|
|
static void *__dl_port(struct devlink_port *devlink_port)
|
|
{
|
|
return container_of(devlink_port, struct mlxsw_core_port, devlink_port);
|
|
}
|
|
|
|
static int mlxsw_devlink_port_split(struct devlink *devlink,
|
|
struct devlink_port *port,
|
|
unsigned int count,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(port);
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
|
|
if (!mlxsw_core->driver->port_split)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_core->driver->port_split(mlxsw_core,
|
|
mlxsw_core_port->local_port,
|
|
count, extack);
|
|
}
|
|
|
|
static int mlxsw_devlink_port_unsplit(struct devlink *devlink,
|
|
struct devlink_port *port,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(port);
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
|
|
if (!mlxsw_core->driver->port_unsplit)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_core->driver->port_unsplit(mlxsw_core,
|
|
mlxsw_core_port->local_port,
|
|
extack);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_pool_get(struct devlink *devlink,
|
|
unsigned int sb_index, u16 pool_index,
|
|
struct devlink_sb_pool_info *pool_info)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->sb_pool_get)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_pool_get(mlxsw_core, sb_index,
|
|
pool_index, pool_info);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_pool_set(struct devlink *devlink,
|
|
unsigned int sb_index, u16 pool_index, u32 size,
|
|
enum devlink_sb_threshold_type threshold_type,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->sb_pool_set)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_pool_set(mlxsw_core, sb_index,
|
|
pool_index, size, threshold_type,
|
|
extack);
|
|
}
|
|
|
|
static int mlxsw_devlink_sb_port_pool_get(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_threshold)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_port_pool_get ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_port_pool_get(mlxsw_core_port, sb_index,
|
|
pool_index, p_threshold);
|
|
}
|
|
|
|
static int mlxsw_devlink_sb_port_pool_set(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 threshold,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_port_pool_set ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_port_pool_set(mlxsw_core_port, sb_index,
|
|
pool_index, threshold, extack);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_tc_pool_bind_get(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 *p_pool_index, u32 *p_threshold)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_tc_pool_bind_get ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_tc_pool_bind_get(mlxsw_core_port, sb_index,
|
|
tc_index, pool_type,
|
|
p_pool_index, p_threshold);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 pool_index, u32 threshold,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_tc_pool_bind_set ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_tc_pool_bind_set(mlxsw_core_port, sb_index,
|
|
tc_index, pool_type,
|
|
pool_index, threshold, extack);
|
|
}
|
|
|
|
static int mlxsw_devlink_sb_occ_snapshot(struct devlink *devlink,
|
|
unsigned int sb_index)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->sb_occ_snapshot)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_occ_snapshot(mlxsw_core, sb_index);
|
|
}
|
|
|
|
static int mlxsw_devlink_sb_occ_max_clear(struct devlink *devlink,
|
|
unsigned int sb_index)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->sb_occ_max_clear)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_occ_max_clear(mlxsw_core, sb_index);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_occ_port_pool_get(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_cur, u32 *p_max)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_occ_port_pool_get ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_occ_port_pool_get(mlxsw_core_port, sb_index,
|
|
pool_index, p_cur, p_max);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u32 *p_cur, u32 *p_max)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink_port->devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
struct mlxsw_core_port *mlxsw_core_port = __dl_port(devlink_port);
|
|
|
|
if (!mlxsw_driver->sb_occ_tc_port_bind_get ||
|
|
!mlxsw_core_port_check(mlxsw_core_port))
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->sb_occ_tc_port_bind_get(mlxsw_core_port,
|
|
sb_index, tc_index,
|
|
pool_type, p_cur, p_max);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
char fw_info_psid[MLXSW_REG_MGIR_FW_INFO_PSID_SIZE];
|
|
u32 hw_rev, fw_major, fw_minor, fw_sub_minor;
|
|
char mgir_pl[MLXSW_REG_MGIR_LEN];
|
|
char buf[32];
|
|
int err;
|
|
|
|
mlxsw_reg_mgir_pack(mgir_pl);
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mgir), mgir_pl);
|
|
if (err)
|
|
return err;
|
|
mlxsw_reg_mgir_unpack(mgir_pl, &hw_rev, fw_info_psid, &fw_major,
|
|
&fw_minor, &fw_sub_minor);
|
|
|
|
sprintf(buf, "%X", hw_rev);
|
|
err = devlink_info_version_fixed_put(req, "hw.revision", buf);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_info_version_fixed_put(req,
|
|
DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
|
|
fw_info_psid);
|
|
if (err)
|
|
return err;
|
|
|
|
sprintf(buf, "%d.%d.%d", fw_major, fw_minor, fw_sub_minor);
|
|
err = devlink_info_version_running_put(req, "fw.version", buf);
|
|
if (err)
|
|
return err;
|
|
|
|
return devlink_info_version_running_put(req,
|
|
DEVLINK_INFO_VERSION_GENERIC_FW,
|
|
buf);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_core_bus_device_reload_down(struct devlink *devlink,
|
|
bool netns_change, enum devlink_reload_action action,
|
|
enum devlink_reload_limit limit,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_RESET))
|
|
return -EOPNOTSUPP;
|
|
|
|
mlxsw_core_bus_device_unregister(mlxsw_core, true);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_core_bus_device_reload_up(struct devlink *devlink, enum devlink_reload_action action,
|
|
enum devlink_reload_limit limit, u32 *actions_performed,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
int err;
|
|
|
|
*actions_performed = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
|
|
BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE);
|
|
err = mlxsw_core_bus_device_register(mlxsw_core->bus_info,
|
|
mlxsw_core->bus,
|
|
mlxsw_core->bus_priv, true,
|
|
devlink, extack);
|
|
return err;
|
|
}
|
|
|
|
static int mlxsw_devlink_flash_update(struct devlink *devlink,
|
|
struct devlink_flash_update_params *params,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
|
|
return mlxsw_core_fw_flash_update(mlxsw_core, params, extack);
|
|
}
|
|
|
|
static int mlxsw_devlink_trap_init(struct devlink *devlink,
|
|
const struct devlink_trap *trap,
|
|
void *trap_ctx)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_init)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_init(mlxsw_core, trap, trap_ctx);
|
|
}
|
|
|
|
static void mlxsw_devlink_trap_fini(struct devlink *devlink,
|
|
const struct devlink_trap *trap,
|
|
void *trap_ctx)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_fini)
|
|
return;
|
|
mlxsw_driver->trap_fini(mlxsw_core, trap, trap_ctx);
|
|
}
|
|
|
|
static int mlxsw_devlink_trap_action_set(struct devlink *devlink,
|
|
const struct devlink_trap *trap,
|
|
enum devlink_trap_action action,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_action_set)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_action_set(mlxsw_core, trap, action, extack);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_trap_group_init(struct devlink *devlink,
|
|
const struct devlink_trap_group *group)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_group_init)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_group_init(mlxsw_core, group);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_trap_group_set(struct devlink *devlink,
|
|
const struct devlink_trap_group *group,
|
|
const struct devlink_trap_policer *policer,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_group_set)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_group_set(mlxsw_core, group, policer, extack);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_trap_policer_init(struct devlink *devlink,
|
|
const struct devlink_trap_policer *policer)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_policer_init)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_policer_init(mlxsw_core, policer);
|
|
}
|
|
|
|
static void
|
|
mlxsw_devlink_trap_policer_fini(struct devlink *devlink,
|
|
const struct devlink_trap_policer *policer)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_policer_fini)
|
|
return;
|
|
mlxsw_driver->trap_policer_fini(mlxsw_core, policer);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_trap_policer_set(struct devlink *devlink,
|
|
const struct devlink_trap_policer *policer,
|
|
u64 rate, u64 burst,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_policer_set)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_policer_set(mlxsw_core, policer, rate, burst,
|
|
extack);
|
|
}
|
|
|
|
static int
|
|
mlxsw_devlink_trap_policer_counter_get(struct devlink *devlink,
|
|
const struct devlink_trap_policer *policer,
|
|
u64 *p_drops)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
|
|
struct mlxsw_driver *mlxsw_driver = mlxsw_core->driver;
|
|
|
|
if (!mlxsw_driver->trap_policer_counter_get)
|
|
return -EOPNOTSUPP;
|
|
return mlxsw_driver->trap_policer_counter_get(mlxsw_core, policer,
|
|
p_drops);
|
|
}
|
|
|
|
static const struct devlink_ops mlxsw_devlink_ops = {
|
|
.reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
|
|
BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
|
|
.reload_down = mlxsw_devlink_core_bus_device_reload_down,
|
|
.reload_up = mlxsw_devlink_core_bus_device_reload_up,
|
|
.sb_pool_get = mlxsw_devlink_sb_pool_get,
|
|
.sb_pool_set = mlxsw_devlink_sb_pool_set,
|
|
.sb_port_pool_get = mlxsw_devlink_sb_port_pool_get,
|
|
.sb_port_pool_set = mlxsw_devlink_sb_port_pool_set,
|
|
.sb_tc_pool_bind_get = mlxsw_devlink_sb_tc_pool_bind_get,
|
|
.sb_tc_pool_bind_set = mlxsw_devlink_sb_tc_pool_bind_set,
|
|
.sb_occ_snapshot = mlxsw_devlink_sb_occ_snapshot,
|
|
.sb_occ_max_clear = mlxsw_devlink_sb_occ_max_clear,
|
|
.sb_occ_port_pool_get = mlxsw_devlink_sb_occ_port_pool_get,
|
|
.sb_occ_tc_port_bind_get = mlxsw_devlink_sb_occ_tc_port_bind_get,
|
|
.info_get = mlxsw_devlink_info_get,
|
|
.flash_update = mlxsw_devlink_flash_update,
|
|
.trap_init = mlxsw_devlink_trap_init,
|
|
.trap_fini = mlxsw_devlink_trap_fini,
|
|
.trap_action_set = mlxsw_devlink_trap_action_set,
|
|
.trap_group_init = mlxsw_devlink_trap_group_init,
|
|
.trap_group_set = mlxsw_devlink_trap_group_set,
|
|
.trap_policer_init = mlxsw_devlink_trap_policer_init,
|
|
.trap_policer_fini = mlxsw_devlink_trap_policer_fini,
|
|
.trap_policer_set = mlxsw_devlink_trap_policer_set,
|
|
.trap_policer_counter_get = mlxsw_devlink_trap_policer_counter_get,
|
|
};
|
|
|
|
static int mlxsw_core_params_register(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core_fw_params_register(mlxsw_core);
|
|
}
|
|
|
|
static void mlxsw_core_params_unregister(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
mlxsw_core_fw_params_unregister(mlxsw_core);
|
|
}
|
|
|
|
struct mlxsw_core_health_event {
|
|
struct mlxsw_core *mlxsw_core;
|
|
char mfde_pl[MLXSW_REG_MFDE_LEN];
|
|
struct work_struct work;
|
|
};
|
|
|
|
static void mlxsw_core_health_event_work(struct work_struct *work)
|
|
{
|
|
struct mlxsw_core_health_event *event;
|
|
struct mlxsw_core *mlxsw_core;
|
|
|
|
event = container_of(work, struct mlxsw_core_health_event, work);
|
|
mlxsw_core = event->mlxsw_core;
|
|
devlink_health_report(mlxsw_core->health.fw_fatal, "FW fatal event occurred",
|
|
event->mfde_pl);
|
|
kfree(event);
|
|
}
|
|
|
|
static void mlxsw_core_health_listener_func(const struct mlxsw_reg_info *reg,
|
|
char *mfde_pl, void *priv)
|
|
{
|
|
struct mlxsw_core_health_event *event;
|
|
struct mlxsw_core *mlxsw_core = priv;
|
|
|
|
event = kmalloc(sizeof(*event), GFP_ATOMIC);
|
|
if (!event)
|
|
return;
|
|
event->mlxsw_core = mlxsw_core;
|
|
memcpy(event->mfde_pl, mfde_pl, sizeof(event->mfde_pl));
|
|
INIT_WORK(&event->work, mlxsw_core_health_event_work);
|
|
mlxsw_core_schedule_work(&event->work);
|
|
}
|
|
|
|
static const struct mlxsw_listener mlxsw_core_health_listener =
|
|
MLXSW_CORE_EVENTL(mlxsw_core_health_listener_func, MFDE);
|
|
|
|
static int
|
|
mlxsw_core_health_fw_fatal_dump_fatal_cause(const char *mfde_pl,
|
|
struct devlink_fmsg *fmsg)
|
|
{
|
|
u32 val, tile_v;
|
|
int err;
|
|
|
|
val = mlxsw_reg_mfde_fatal_cause_id_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "cause_id", val);
|
|
if (err)
|
|
return err;
|
|
tile_v = mlxsw_reg_mfde_fatal_cause_tile_v_get(mfde_pl);
|
|
if (tile_v) {
|
|
val = mlxsw_reg_mfde_fatal_cause_tile_index_get(mfde_pl);
|
|
err = devlink_fmsg_u8_pair_put(fmsg, "tile_index", val);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mlxsw_core_health_fw_fatal_dump_fw_assert(const char *mfde_pl,
|
|
struct devlink_fmsg *fmsg)
|
|
{
|
|
u32 val, tile_v;
|
|
int err;
|
|
|
|
val = mlxsw_reg_mfde_fw_assert_var0_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "var0", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_var1_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "var1", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_var2_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "var2", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_var3_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "var3", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_var4_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "var4", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_existptr_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "existptr", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_callra_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "callra", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_fw_assert_oe_get(mfde_pl);
|
|
err = devlink_fmsg_bool_pair_put(fmsg, "old_event", val);
|
|
if (err)
|
|
return err;
|
|
tile_v = mlxsw_reg_mfde_fw_assert_tile_v_get(mfde_pl);
|
|
if (tile_v) {
|
|
val = mlxsw_reg_mfde_fw_assert_tile_index_get(mfde_pl);
|
|
err = devlink_fmsg_u8_pair_put(fmsg, "tile_index", val);
|
|
if (err)
|
|
return err;
|
|
}
|
|
val = mlxsw_reg_mfde_fw_assert_ext_synd_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "ext_synd", val);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mlxsw_core_health_fw_fatal_dump_kvd_im_stop(const char *mfde_pl,
|
|
struct devlink_fmsg *fmsg)
|
|
{
|
|
u32 val;
|
|
int err;
|
|
|
|
val = mlxsw_reg_mfde_kvd_im_stop_oe_get(mfde_pl);
|
|
err = devlink_fmsg_bool_pair_put(fmsg, "old_event", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_kvd_im_stop_pipes_mask_get(mfde_pl);
|
|
return devlink_fmsg_u32_pair_put(fmsg, "pipes_mask", val);
|
|
}
|
|
|
|
static int
|
|
mlxsw_core_health_fw_fatal_dump_crspace_to(const char *mfde_pl,
|
|
struct devlink_fmsg *fmsg)
|
|
{
|
|
u32 val;
|
|
int err;
|
|
|
|
val = mlxsw_reg_mfde_crspace_to_log_address_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "log_address", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_crspace_to_oe_get(mfde_pl);
|
|
err = devlink_fmsg_bool_pair_put(fmsg, "old_event", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_crspace_to_log_id_get(mfde_pl);
|
|
err = devlink_fmsg_u8_pair_put(fmsg, "log_irisc_id", val);
|
|
if (err)
|
|
return err;
|
|
val = mlxsw_reg_mfde_crspace_to_log_ip_get(mfde_pl);
|
|
err = devlink_fmsg_u64_pair_put(fmsg, "log_ip", val);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mlxsw_core_health_fw_fatal_dump(struct devlink_health_reporter *reporter,
|
|
struct devlink_fmsg *fmsg, void *priv_ctx,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
char *mfde_pl = priv_ctx;
|
|
char *val_str;
|
|
u8 event_id;
|
|
u32 val;
|
|
int err;
|
|
|
|
if (!priv_ctx)
|
|
/* User-triggered dumps are not possible */
|
|
return -EOPNOTSUPP;
|
|
|
|
val = mlxsw_reg_mfde_irisc_id_get(mfde_pl);
|
|
err = devlink_fmsg_u8_pair_put(fmsg, "irisc_id", val);
|
|
if (err)
|
|
return err;
|
|
err = devlink_fmsg_arr_pair_nest_start(fmsg, "event");
|
|
if (err)
|
|
return err;
|
|
|
|
event_id = mlxsw_reg_mfde_event_id_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "id", event_id);
|
|
if (err)
|
|
return err;
|
|
switch (event_id) {
|
|
case MLXSW_REG_MFDE_EVENT_ID_CRSPACE_TO:
|
|
val_str = "CR space timeout";
|
|
break;
|
|
case MLXSW_REG_MFDE_EVENT_ID_KVD_IM_STOP:
|
|
val_str = "KVD insertion machine stopped";
|
|
break;
|
|
case MLXSW_REG_MFDE_EVENT_ID_TEST:
|
|
val_str = "Test";
|
|
break;
|
|
case MLXSW_REG_MFDE_EVENT_ID_FW_ASSERT:
|
|
val_str = "FW assert";
|
|
break;
|
|
case MLXSW_REG_MFDE_EVENT_ID_FATAL_CAUSE:
|
|
val_str = "Fatal cause";
|
|
break;
|
|
default:
|
|
val_str = NULL;
|
|
}
|
|
if (val_str) {
|
|
err = devlink_fmsg_string_pair_put(fmsg, "desc", val_str);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
err = devlink_fmsg_arr_pair_nest_end(fmsg);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_fmsg_arr_pair_nest_start(fmsg, "severity");
|
|
if (err)
|
|
return err;
|
|
|
|
val = mlxsw_reg_mfde_severity_get(mfde_pl);
|
|
err = devlink_fmsg_u8_pair_put(fmsg, "id", val);
|
|
if (err)
|
|
return err;
|
|
switch (val) {
|
|
case MLXSW_REG_MFDE_SEVERITY_FATL:
|
|
val_str = "Fatal";
|
|
break;
|
|
case MLXSW_REG_MFDE_SEVERITY_NRML:
|
|
val_str = "Normal";
|
|
break;
|
|
case MLXSW_REG_MFDE_SEVERITY_INTR:
|
|
val_str = "Debug";
|
|
break;
|
|
default:
|
|
val_str = NULL;
|
|
}
|
|
if (val_str) {
|
|
err = devlink_fmsg_string_pair_put(fmsg, "desc", val_str);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
err = devlink_fmsg_arr_pair_nest_end(fmsg);
|
|
if (err)
|
|
return err;
|
|
|
|
val = mlxsw_reg_mfde_method_get(mfde_pl);
|
|
switch (val) {
|
|
case MLXSW_REG_MFDE_METHOD_QUERY:
|
|
val_str = "query";
|
|
break;
|
|
case MLXSW_REG_MFDE_METHOD_WRITE:
|
|
val_str = "write";
|
|
break;
|
|
default:
|
|
val_str = NULL;
|
|
}
|
|
if (val_str) {
|
|
err = devlink_fmsg_string_pair_put(fmsg, "method", val_str);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
val = mlxsw_reg_mfde_long_process_get(mfde_pl);
|
|
err = devlink_fmsg_bool_pair_put(fmsg, "long_process", val);
|
|
if (err)
|
|
return err;
|
|
|
|
val = mlxsw_reg_mfde_command_type_get(mfde_pl);
|
|
switch (val) {
|
|
case MLXSW_REG_MFDE_COMMAND_TYPE_MAD:
|
|
val_str = "mad";
|
|
break;
|
|
case MLXSW_REG_MFDE_COMMAND_TYPE_EMAD:
|
|
val_str = "emad";
|
|
break;
|
|
case MLXSW_REG_MFDE_COMMAND_TYPE_CMDIF:
|
|
val_str = "cmdif";
|
|
break;
|
|
default:
|
|
val_str = NULL;
|
|
}
|
|
if (val_str) {
|
|
err = devlink_fmsg_string_pair_put(fmsg, "command_type", val_str);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
val = mlxsw_reg_mfde_reg_attr_id_get(mfde_pl);
|
|
err = devlink_fmsg_u32_pair_put(fmsg, "reg_attr_id", val);
|
|
if (err)
|
|
return err;
|
|
|
|
switch (event_id) {
|
|
case MLXSW_REG_MFDE_EVENT_ID_CRSPACE_TO:
|
|
return mlxsw_core_health_fw_fatal_dump_crspace_to(mfde_pl,
|
|
fmsg);
|
|
case MLXSW_REG_MFDE_EVENT_ID_KVD_IM_STOP:
|
|
return mlxsw_core_health_fw_fatal_dump_kvd_im_stop(mfde_pl,
|
|
fmsg);
|
|
case MLXSW_REG_MFDE_EVENT_ID_FW_ASSERT:
|
|
return mlxsw_core_health_fw_fatal_dump_fw_assert(mfde_pl, fmsg);
|
|
case MLXSW_REG_MFDE_EVENT_ID_FATAL_CAUSE:
|
|
return mlxsw_core_health_fw_fatal_dump_fatal_cause(mfde_pl,
|
|
fmsg);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mlxsw_core_health_fw_fatal_test(struct devlink_health_reporter *reporter,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct mlxsw_core *mlxsw_core = devlink_health_reporter_priv(reporter);
|
|
char mfgd_pl[MLXSW_REG_MFGD_LEN];
|
|
int err;
|
|
|
|
/* Read the register first to make sure no other bits are changed. */
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mfgd), mfgd_pl);
|
|
if (err)
|
|
return err;
|
|
mlxsw_reg_mfgd_trigger_test_set(mfgd_pl, true);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mfgd), mfgd_pl);
|
|
}
|
|
|
|
static const struct devlink_health_reporter_ops
|
|
mlxsw_core_health_fw_fatal_ops = {
|
|
.name = "fw_fatal",
|
|
.dump = mlxsw_core_health_fw_fatal_dump,
|
|
.test = mlxsw_core_health_fw_fatal_test,
|
|
};
|
|
|
|
static int mlxsw_core_health_fw_fatal_config(struct mlxsw_core *mlxsw_core,
|
|
bool enable)
|
|
{
|
|
char mfgd_pl[MLXSW_REG_MFGD_LEN];
|
|
int err;
|
|
|
|
/* Read the register first to make sure no other bits are changed. */
|
|
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mfgd), mfgd_pl);
|
|
if (err)
|
|
return err;
|
|
mlxsw_reg_mfgd_fatal_event_mode_set(mfgd_pl, enable);
|
|
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(mfgd), mfgd_pl);
|
|
}
|
|
|
|
static int mlxsw_core_health_init(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
struct devlink *devlink = priv_to_devlink(mlxsw_core);
|
|
struct devlink_health_reporter *fw_fatal;
|
|
int err;
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return 0;
|
|
|
|
fw_fatal = devl_health_reporter_create(devlink, &mlxsw_core_health_fw_fatal_ops,
|
|
0, mlxsw_core);
|
|
if (IS_ERR(fw_fatal)) {
|
|
dev_err(mlxsw_core->bus_info->dev, "Failed to create fw fatal reporter");
|
|
return PTR_ERR(fw_fatal);
|
|
}
|
|
mlxsw_core->health.fw_fatal = fw_fatal;
|
|
|
|
err = mlxsw_core_trap_register(mlxsw_core, &mlxsw_core_health_listener, mlxsw_core);
|
|
if (err)
|
|
goto err_trap_register;
|
|
|
|
err = mlxsw_core_health_fw_fatal_config(mlxsw_core, true);
|
|
if (err)
|
|
goto err_fw_fatal_config;
|
|
|
|
return 0;
|
|
|
|
err_fw_fatal_config:
|
|
mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_core_health_listener, mlxsw_core);
|
|
err_trap_register:
|
|
devl_health_reporter_destroy(mlxsw_core->health.fw_fatal);
|
|
return err;
|
|
}
|
|
|
|
static void mlxsw_core_health_fini(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return;
|
|
|
|
mlxsw_core_health_fw_fatal_config(mlxsw_core, false);
|
|
mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_core_health_listener, mlxsw_core);
|
|
/* Make sure there is no more event work scheduled */
|
|
mlxsw_core_flush_owq();
|
|
devl_health_reporter_destroy(mlxsw_core->health.fw_fatal);
|
|
}
|
|
|
|
static void mlxsw_core_irq_event_handler_init(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
INIT_LIST_HEAD(&mlxsw_core->irq_event_handler_list);
|
|
mutex_init(&mlxsw_core->irq_event_handler_lock);
|
|
}
|
|
|
|
static void mlxsw_core_irq_event_handler_fini(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
mutex_destroy(&mlxsw_core->irq_event_handler_lock);
|
|
WARN_ON(!list_empty(&mlxsw_core->irq_event_handler_list));
|
|
}
|
|
|
|
static int
|
|
__mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
|
|
const struct mlxsw_bus *mlxsw_bus,
|
|
void *bus_priv, bool reload,
|
|
struct devlink *devlink,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
const char *device_kind = mlxsw_bus_info->device_kind;
|
|
struct mlxsw_core *mlxsw_core;
|
|
struct mlxsw_driver *mlxsw_driver;
|
|
size_t alloc_size;
|
|
u16 max_lag;
|
|
int err;
|
|
|
|
mlxsw_driver = mlxsw_core_driver_get(device_kind);
|
|
if (!mlxsw_driver)
|
|
return -EINVAL;
|
|
|
|
if (!reload) {
|
|
alloc_size = sizeof(*mlxsw_core) + mlxsw_driver->priv_size;
|
|
devlink = devlink_alloc(&mlxsw_devlink_ops, alloc_size,
|
|
mlxsw_bus_info->dev);
|
|
if (!devlink) {
|
|
err = -ENOMEM;
|
|
goto err_devlink_alloc;
|
|
}
|
|
devl_lock(devlink);
|
|
devl_register(devlink);
|
|
}
|
|
|
|
mlxsw_core = devlink_priv(devlink);
|
|
INIT_LIST_HEAD(&mlxsw_core->rx_listener_list);
|
|
INIT_LIST_HEAD(&mlxsw_core->event_listener_list);
|
|
mlxsw_core->driver = mlxsw_driver;
|
|
mlxsw_core->bus = mlxsw_bus;
|
|
mlxsw_core->bus_priv = bus_priv;
|
|
mlxsw_core->bus_info = mlxsw_bus_info;
|
|
mlxsw_core_irq_event_handler_init(mlxsw_core);
|
|
|
|
err = mlxsw_bus->init(bus_priv, mlxsw_core, mlxsw_driver->profile,
|
|
&mlxsw_core->res);
|
|
if (err)
|
|
goto err_bus_init;
|
|
|
|
if (mlxsw_driver->resources_register && !reload) {
|
|
err = mlxsw_driver->resources_register(mlxsw_core);
|
|
if (err)
|
|
goto err_register_resources;
|
|
}
|
|
|
|
err = mlxsw_ports_init(mlxsw_core, reload);
|
|
if (err)
|
|
goto err_ports_init;
|
|
|
|
err = mlxsw_core_max_lag(mlxsw_core, &max_lag);
|
|
if (!err && MLXSW_CORE_RES_VALID(mlxsw_core, MAX_LAG_MEMBERS)) {
|
|
alloc_size = sizeof(*mlxsw_core->lag.mapping) * max_lag *
|
|
MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS);
|
|
mlxsw_core->lag.mapping = kzalloc(alloc_size, GFP_KERNEL);
|
|
if (!mlxsw_core->lag.mapping) {
|
|
err = -ENOMEM;
|
|
goto err_alloc_lag_mapping;
|
|
}
|
|
}
|
|
|
|
err = mlxsw_core_trap_groups_set(mlxsw_core);
|
|
if (err)
|
|
goto err_trap_groups_set;
|
|
|
|
err = mlxsw_emad_init(mlxsw_core);
|
|
if (err)
|
|
goto err_emad_init;
|
|
|
|
if (!reload) {
|
|
err = mlxsw_core_params_register(mlxsw_core);
|
|
if (err)
|
|
goto err_register_params;
|
|
}
|
|
|
|
err = mlxsw_core_fw_rev_validate(mlxsw_core, mlxsw_bus_info, mlxsw_driver->fw_req_rev,
|
|
mlxsw_driver->fw_filename);
|
|
if (err)
|
|
goto err_fw_rev_validate;
|
|
|
|
err = mlxsw_linecards_init(mlxsw_core, mlxsw_bus_info);
|
|
if (err)
|
|
goto err_linecards_init;
|
|
|
|
err = mlxsw_core_health_init(mlxsw_core);
|
|
if (err)
|
|
goto err_health_init;
|
|
|
|
err = mlxsw_hwmon_init(mlxsw_core, mlxsw_bus_info, &mlxsw_core->hwmon);
|
|
if (err)
|
|
goto err_hwmon_init;
|
|
|
|
err = mlxsw_thermal_init(mlxsw_core, mlxsw_bus_info,
|
|
&mlxsw_core->thermal);
|
|
if (err)
|
|
goto err_thermal_init;
|
|
|
|
err = mlxsw_env_init(mlxsw_core, mlxsw_bus_info, &mlxsw_core->env);
|
|
if (err)
|
|
goto err_env_init;
|
|
|
|
if (mlxsw_driver->init) {
|
|
err = mlxsw_driver->init(mlxsw_core, mlxsw_bus_info, extack);
|
|
if (err)
|
|
goto err_driver_init;
|
|
}
|
|
|
|
if (!reload)
|
|
devl_unlock(devlink);
|
|
return 0;
|
|
|
|
err_driver_init:
|
|
mlxsw_env_fini(mlxsw_core->env);
|
|
err_env_init:
|
|
mlxsw_thermal_fini(mlxsw_core->thermal);
|
|
err_thermal_init:
|
|
mlxsw_hwmon_fini(mlxsw_core->hwmon);
|
|
err_hwmon_init:
|
|
mlxsw_core_health_fini(mlxsw_core);
|
|
err_health_init:
|
|
mlxsw_linecards_fini(mlxsw_core);
|
|
err_linecards_init:
|
|
err_fw_rev_validate:
|
|
if (!reload)
|
|
mlxsw_core_params_unregister(mlxsw_core);
|
|
err_register_params:
|
|
mlxsw_emad_fini(mlxsw_core);
|
|
err_emad_init:
|
|
err_trap_groups_set:
|
|
kfree(mlxsw_core->lag.mapping);
|
|
err_alloc_lag_mapping:
|
|
mlxsw_ports_fini(mlxsw_core, reload);
|
|
err_ports_init:
|
|
if (!reload)
|
|
devl_resources_unregister(devlink);
|
|
err_register_resources:
|
|
mlxsw_bus->fini(bus_priv);
|
|
err_bus_init:
|
|
mlxsw_core_irq_event_handler_fini(mlxsw_core);
|
|
if (!reload) {
|
|
devl_unregister(devlink);
|
|
devl_unlock(devlink);
|
|
devlink_free(devlink);
|
|
}
|
|
err_devlink_alloc:
|
|
return err;
|
|
}
|
|
|
|
int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
|
|
const struct mlxsw_bus *mlxsw_bus,
|
|
void *bus_priv, bool reload,
|
|
struct devlink *devlink,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
bool called_again = false;
|
|
int err;
|
|
|
|
again:
|
|
err = __mlxsw_core_bus_device_register(mlxsw_bus_info, mlxsw_bus,
|
|
bus_priv, reload,
|
|
devlink, extack);
|
|
/* -EAGAIN is returned in case the FW was updated. FW needs
|
|
* a reset, so lets try to call __mlxsw_core_bus_device_register()
|
|
* again.
|
|
*/
|
|
if (err == -EAGAIN && !called_again) {
|
|
called_again = true;
|
|
goto again;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_bus_device_register);
|
|
|
|
void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core,
|
|
bool reload)
|
|
{
|
|
struct devlink *devlink = priv_to_devlink(mlxsw_core);
|
|
|
|
if (!reload)
|
|
devl_lock(devlink);
|
|
|
|
if (devlink_is_reload_failed(devlink)) {
|
|
if (!reload)
|
|
/* Only the parts that were not de-initialized in the
|
|
* failed reload attempt need to be de-initialized.
|
|
*/
|
|
goto reload_fail_deinit;
|
|
else
|
|
return;
|
|
}
|
|
|
|
if (mlxsw_core->driver->fini)
|
|
mlxsw_core->driver->fini(mlxsw_core);
|
|
mlxsw_env_fini(mlxsw_core->env);
|
|
mlxsw_thermal_fini(mlxsw_core->thermal);
|
|
mlxsw_hwmon_fini(mlxsw_core->hwmon);
|
|
mlxsw_core_health_fini(mlxsw_core);
|
|
mlxsw_linecards_fini(mlxsw_core);
|
|
if (!reload)
|
|
mlxsw_core_params_unregister(mlxsw_core);
|
|
mlxsw_emad_fini(mlxsw_core);
|
|
kfree(mlxsw_core->lag.mapping);
|
|
mlxsw_ports_fini(mlxsw_core, reload);
|
|
if (!reload)
|
|
devl_resources_unregister(devlink);
|
|
mlxsw_core->bus->fini(mlxsw_core->bus_priv);
|
|
mlxsw_core_irq_event_handler_fini(mlxsw_core);
|
|
if (!reload) {
|
|
devl_unregister(devlink);
|
|
devl_unlock(devlink);
|
|
devlink_free(devlink);
|
|
}
|
|
|
|
return;
|
|
|
|
reload_fail_deinit:
|
|
mlxsw_core_params_unregister(mlxsw_core);
|
|
devl_resources_unregister(devlink);
|
|
devl_unregister(devlink);
|
|
devl_unlock(devlink);
|
|
devlink_free(devlink);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_bus_device_unregister);
|
|
|
|
bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_tx_info *tx_info)
|
|
{
|
|
return mlxsw_core->bus->skb_transmit_busy(mlxsw_core->bus_priv,
|
|
tx_info);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_skb_transmit_busy);
|
|
|
|
int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
|
|
const struct mlxsw_tx_info *tx_info)
|
|
{
|
|
return mlxsw_core->bus->skb_transmit(mlxsw_core->bus_priv, skb,
|
|
tx_info);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_skb_transmit);
|
|
|
|
void mlxsw_core_ptp_transmitted(struct mlxsw_core *mlxsw_core,
|
|
struct sk_buff *skb, u16 local_port)
|
|
{
|
|
if (mlxsw_core->driver->ptp_transmitted)
|
|
mlxsw_core->driver->ptp_transmitted(mlxsw_core, skb,
|
|
local_port);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_ptp_transmitted);
|
|
|
|
static bool __is_rx_listener_equal(const struct mlxsw_rx_listener *rxl_a,
|
|
const struct mlxsw_rx_listener *rxl_b)
|
|
{
|
|
return (rxl_a->func == rxl_b->func &&
|
|
rxl_a->local_port == rxl_b->local_port &&
|
|
rxl_a->trap_id == rxl_b->trap_id &&
|
|
rxl_a->mirror_reason == rxl_b->mirror_reason);
|
|
}
|
|
|
|
static struct mlxsw_rx_listener_item *
|
|
__find_rx_listener_item(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_rx_listener *rxl)
|
|
{
|
|
struct mlxsw_rx_listener_item *rxl_item;
|
|
|
|
list_for_each_entry(rxl_item, &mlxsw_core->rx_listener_list, list) {
|
|
if (__is_rx_listener_equal(&rxl_item->rxl, rxl))
|
|
return rxl_item;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_rx_listener *rxl,
|
|
void *priv, bool enabled)
|
|
{
|
|
struct mlxsw_rx_listener_item *rxl_item;
|
|
|
|
rxl_item = __find_rx_listener_item(mlxsw_core, rxl);
|
|
if (rxl_item)
|
|
return -EEXIST;
|
|
rxl_item = kmalloc(sizeof(*rxl_item), GFP_KERNEL);
|
|
if (!rxl_item)
|
|
return -ENOMEM;
|
|
rxl_item->rxl = *rxl;
|
|
rxl_item->priv = priv;
|
|
rxl_item->enabled = enabled;
|
|
|
|
list_add_rcu(&rxl_item->list, &mlxsw_core->rx_listener_list);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_rx_listener_register);
|
|
|
|
void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_rx_listener *rxl)
|
|
{
|
|
struct mlxsw_rx_listener_item *rxl_item;
|
|
|
|
rxl_item = __find_rx_listener_item(mlxsw_core, rxl);
|
|
if (!rxl_item)
|
|
return;
|
|
list_del_rcu(&rxl_item->list);
|
|
synchronize_rcu();
|
|
kfree(rxl_item);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_rx_listener_unregister);
|
|
|
|
static void
|
|
mlxsw_core_rx_listener_state_set(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_rx_listener *rxl,
|
|
bool enabled)
|
|
{
|
|
struct mlxsw_rx_listener_item *rxl_item;
|
|
|
|
rxl_item = __find_rx_listener_item(mlxsw_core, rxl);
|
|
if (WARN_ON(!rxl_item))
|
|
return;
|
|
rxl_item->enabled = enabled;
|
|
}
|
|
|
|
static void mlxsw_core_event_listener_func(struct sk_buff *skb, u16 local_port,
|
|
void *priv)
|
|
{
|
|
struct mlxsw_event_listener_item *event_listener_item = priv;
|
|
struct mlxsw_core *mlxsw_core;
|
|
struct mlxsw_reg_info reg;
|
|
char *payload;
|
|
char *reg_tlv;
|
|
char *op_tlv;
|
|
|
|
mlxsw_core = event_listener_item->mlxsw_core;
|
|
trace_devlink_hwmsg(priv_to_devlink(mlxsw_core), true, 0,
|
|
skb->data, skb->len);
|
|
|
|
mlxsw_emad_tlv_parse(skb);
|
|
op_tlv = mlxsw_emad_op_tlv(skb);
|
|
reg_tlv = mlxsw_emad_reg_tlv(skb);
|
|
|
|
reg.id = mlxsw_emad_op_tlv_register_id_get(op_tlv);
|
|
reg.len = (mlxsw_emad_reg_tlv_len_get(reg_tlv) - 1) * sizeof(u32);
|
|
payload = mlxsw_emad_reg_payload(reg_tlv);
|
|
event_listener_item->el.func(®, payload, event_listener_item->priv);
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
static bool __is_event_listener_equal(const struct mlxsw_event_listener *el_a,
|
|
const struct mlxsw_event_listener *el_b)
|
|
{
|
|
return (el_a->func == el_b->func &&
|
|
el_a->trap_id == el_b->trap_id);
|
|
}
|
|
|
|
static struct mlxsw_event_listener_item *
|
|
__find_event_listener_item(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_event_listener *el)
|
|
{
|
|
struct mlxsw_event_listener_item *el_item;
|
|
|
|
list_for_each_entry(el_item, &mlxsw_core->event_listener_list, list) {
|
|
if (__is_event_listener_equal(&el_item->el, el))
|
|
return el_item;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_event_listener *el,
|
|
void *priv)
|
|
{
|
|
int err;
|
|
struct mlxsw_event_listener_item *el_item;
|
|
const struct mlxsw_rx_listener rxl = {
|
|
.func = mlxsw_core_event_listener_func,
|
|
.local_port = MLXSW_PORT_DONT_CARE,
|
|
.trap_id = el->trap_id,
|
|
};
|
|
|
|
el_item = __find_event_listener_item(mlxsw_core, el);
|
|
if (el_item)
|
|
return -EEXIST;
|
|
el_item = kmalloc(sizeof(*el_item), GFP_KERNEL);
|
|
if (!el_item)
|
|
return -ENOMEM;
|
|
el_item->mlxsw_core = mlxsw_core;
|
|
el_item->el = *el;
|
|
el_item->priv = priv;
|
|
|
|
err = mlxsw_core_rx_listener_register(mlxsw_core, &rxl, el_item, true);
|
|
if (err)
|
|
goto err_rx_listener_register;
|
|
|
|
/* No reason to save item if we did not manage to register an RX
|
|
* listener for it.
|
|
*/
|
|
list_add_rcu(&el_item->list, &mlxsw_core->event_listener_list);
|
|
|
|
return 0;
|
|
|
|
err_rx_listener_register:
|
|
kfree(el_item);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_event_listener_register);
|
|
|
|
void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_event_listener *el)
|
|
{
|
|
struct mlxsw_event_listener_item *el_item;
|
|
const struct mlxsw_rx_listener rxl = {
|
|
.func = mlxsw_core_event_listener_func,
|
|
.local_port = MLXSW_PORT_DONT_CARE,
|
|
.trap_id = el->trap_id,
|
|
};
|
|
|
|
el_item = __find_event_listener_item(mlxsw_core, el);
|
|
if (!el_item)
|
|
return;
|
|
mlxsw_core_rx_listener_unregister(mlxsw_core, &rxl);
|
|
list_del(&el_item->list);
|
|
kfree(el_item);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_event_listener_unregister);
|
|
|
|
static int mlxsw_core_listener_register(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listener,
|
|
void *priv, bool enabled)
|
|
{
|
|
if (listener->is_event) {
|
|
WARN_ON(!enabled);
|
|
return mlxsw_core_event_listener_register(mlxsw_core,
|
|
&listener->event_listener,
|
|
priv);
|
|
} else {
|
|
return mlxsw_core_rx_listener_register(mlxsw_core,
|
|
&listener->rx_listener,
|
|
priv, enabled);
|
|
}
|
|
}
|
|
|
|
static void mlxsw_core_listener_unregister(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listener,
|
|
void *priv)
|
|
{
|
|
if (listener->is_event)
|
|
mlxsw_core_event_listener_unregister(mlxsw_core,
|
|
&listener->event_listener);
|
|
else
|
|
mlxsw_core_rx_listener_unregister(mlxsw_core,
|
|
&listener->rx_listener);
|
|
}
|
|
|
|
int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listener, void *priv)
|
|
{
|
|
enum mlxsw_reg_htgt_trap_group trap_group;
|
|
enum mlxsw_reg_hpkt_action action;
|
|
char hpkt_pl[MLXSW_REG_HPKT_LEN];
|
|
int err;
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return 0;
|
|
|
|
err = mlxsw_core_listener_register(mlxsw_core, listener, priv,
|
|
listener->enabled_on_register);
|
|
if (err)
|
|
return err;
|
|
|
|
action = listener->enabled_on_register ? listener->en_action :
|
|
listener->dis_action;
|
|
trap_group = listener->enabled_on_register ? listener->en_trap_group :
|
|
listener->dis_trap_group;
|
|
mlxsw_reg_hpkt_pack(hpkt_pl, action, listener->trap_id,
|
|
trap_group, listener->is_ctrl);
|
|
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
|
|
if (err)
|
|
goto err_trap_set;
|
|
|
|
return 0;
|
|
|
|
err_trap_set:
|
|
mlxsw_core_listener_unregister(mlxsw_core, listener, priv);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_trap_register);
|
|
|
|
void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listener,
|
|
void *priv)
|
|
{
|
|
char hpkt_pl[MLXSW_REG_HPKT_LEN];
|
|
|
|
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
|
|
return;
|
|
|
|
if (!listener->is_event) {
|
|
mlxsw_reg_hpkt_pack(hpkt_pl, listener->dis_action,
|
|
listener->trap_id, listener->dis_trap_group,
|
|
listener->is_ctrl);
|
|
mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
|
|
}
|
|
|
|
mlxsw_core_listener_unregister(mlxsw_core, listener, priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_trap_unregister);
|
|
|
|
int mlxsw_core_traps_register(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listeners,
|
|
size_t listeners_count, void *priv)
|
|
{
|
|
int i, err;
|
|
|
|
for (i = 0; i < listeners_count; i++) {
|
|
err = mlxsw_core_trap_register(mlxsw_core,
|
|
&listeners[i],
|
|
priv);
|
|
if (err)
|
|
goto err_listener_register;
|
|
}
|
|
return 0;
|
|
|
|
err_listener_register:
|
|
for (i--; i >= 0; i--) {
|
|
mlxsw_core_trap_unregister(mlxsw_core,
|
|
&listeners[i],
|
|
priv);
|
|
}
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_traps_register);
|
|
|
|
void mlxsw_core_traps_unregister(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listeners,
|
|
size_t listeners_count, void *priv)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < listeners_count; i++) {
|
|
mlxsw_core_trap_unregister(mlxsw_core,
|
|
&listeners[i],
|
|
priv);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_traps_unregister);
|
|
|
|
int mlxsw_core_trap_state_set(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_listener *listener,
|
|
bool enabled)
|
|
{
|
|
enum mlxsw_reg_htgt_trap_group trap_group;
|
|
enum mlxsw_reg_hpkt_action action;
|
|
char hpkt_pl[MLXSW_REG_HPKT_LEN];
|
|
int err;
|
|
|
|
/* Not supported for event listener */
|
|
if (WARN_ON(listener->is_event))
|
|
return -EINVAL;
|
|
|
|
action = enabled ? listener->en_action : listener->dis_action;
|
|
trap_group = enabled ? listener->en_trap_group :
|
|
listener->dis_trap_group;
|
|
mlxsw_reg_hpkt_pack(hpkt_pl, action, listener->trap_id,
|
|
trap_group, listener->is_ctrl);
|
|
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(hpkt), hpkt_pl);
|
|
if (err)
|
|
return err;
|
|
|
|
mlxsw_core_rx_listener_state_set(mlxsw_core, &listener->rx_listener,
|
|
enabled);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_trap_state_set);
|
|
|
|
static u64 mlxsw_core_tid_get(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return atomic64_inc_return(&mlxsw_core->emad.tid);
|
|
}
|
|
|
|
static int mlxsw_core_reg_access_emad(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg,
|
|
char *payload,
|
|
enum mlxsw_core_reg_access_type type,
|
|
struct list_head *bulk_list,
|
|
mlxsw_reg_trans_cb_t *cb,
|
|
unsigned long cb_priv)
|
|
{
|
|
u64 tid = mlxsw_core_tid_get(mlxsw_core);
|
|
struct mlxsw_reg_trans *trans;
|
|
int err;
|
|
|
|
trans = kzalloc(sizeof(*trans), GFP_KERNEL);
|
|
if (!trans)
|
|
return -ENOMEM;
|
|
|
|
err = mlxsw_emad_reg_access(mlxsw_core, reg, payload, type, trans,
|
|
bulk_list, cb, cb_priv, tid);
|
|
if (err) {
|
|
kfree_rcu(trans, rcu);
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg, char *payload,
|
|
struct list_head *bulk_list,
|
|
mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv)
|
|
{
|
|
return mlxsw_core_reg_access_emad(mlxsw_core, reg, payload,
|
|
MLXSW_CORE_REG_ACCESS_TYPE_QUERY,
|
|
bulk_list, cb, cb_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_reg_trans_query);
|
|
|
|
int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg, char *payload,
|
|
struct list_head *bulk_list,
|
|
mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv)
|
|
{
|
|
return mlxsw_core_reg_access_emad(mlxsw_core, reg, payload,
|
|
MLXSW_CORE_REG_ACCESS_TYPE_WRITE,
|
|
bulk_list, cb, cb_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_reg_trans_write);
|
|
|
|
#define MLXSW_REG_TRANS_ERR_STRING_SIZE 256
|
|
|
|
static int mlxsw_reg_trans_wait(struct mlxsw_reg_trans *trans)
|
|
{
|
|
char err_string[MLXSW_REG_TRANS_ERR_STRING_SIZE];
|
|
struct mlxsw_core *mlxsw_core = trans->core;
|
|
int err;
|
|
|
|
wait_for_completion(&trans->completion);
|
|
cancel_delayed_work_sync(&trans->timeout_dw);
|
|
err = trans->err;
|
|
|
|
if (trans->retries)
|
|
dev_warn(mlxsw_core->bus_info->dev, "EMAD retries (%d/%d) (tid=%llx)\n",
|
|
trans->retries, MLXSW_EMAD_MAX_RETRY, trans->tid);
|
|
if (err) {
|
|
dev_err(mlxsw_core->bus_info->dev, "EMAD reg access failed (tid=%llx,reg_id=%x(%s),type=%s,status=%x(%s))\n",
|
|
trans->tid, trans->reg->id,
|
|
mlxsw_reg_id_str(trans->reg->id),
|
|
mlxsw_core_reg_access_type_str(trans->type),
|
|
trans->emad_status,
|
|
mlxsw_emad_op_tlv_status_str(trans->emad_status));
|
|
|
|
snprintf(err_string, MLXSW_REG_TRANS_ERR_STRING_SIZE,
|
|
"(tid=%llx,reg_id=%x(%s)) %s (%s)\n", trans->tid,
|
|
trans->reg->id, mlxsw_reg_id_str(trans->reg->id),
|
|
mlxsw_emad_op_tlv_status_str(trans->emad_status),
|
|
trans->emad_err_string ? trans->emad_err_string : "");
|
|
|
|
trace_devlink_hwerr(priv_to_devlink(mlxsw_core),
|
|
trans->emad_status, err_string);
|
|
|
|
kfree(trans->emad_err_string);
|
|
}
|
|
|
|
list_del(&trans->bulk_list);
|
|
kfree_rcu(trans, rcu);
|
|
return err;
|
|
}
|
|
|
|
int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list)
|
|
{
|
|
struct mlxsw_reg_trans *trans;
|
|
struct mlxsw_reg_trans *tmp;
|
|
int sum_err = 0;
|
|
int err;
|
|
|
|
list_for_each_entry_safe(trans, tmp, bulk_list, bulk_list) {
|
|
err = mlxsw_reg_trans_wait(trans);
|
|
if (err && sum_err == 0)
|
|
sum_err = err; /* first error to be returned */
|
|
}
|
|
return sum_err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_reg_trans_bulk_wait);
|
|
|
|
struct mlxsw_core_irq_event_handler_item {
|
|
struct list_head list;
|
|
void (*cb)(struct mlxsw_core *mlxsw_core);
|
|
};
|
|
|
|
int mlxsw_core_irq_event_handler_register(struct mlxsw_core *mlxsw_core,
|
|
mlxsw_irq_event_cb_t cb)
|
|
{
|
|
struct mlxsw_core_irq_event_handler_item *item;
|
|
|
|
item = kzalloc(sizeof(*item), GFP_KERNEL);
|
|
if (!item)
|
|
return -ENOMEM;
|
|
item->cb = cb;
|
|
mutex_lock(&mlxsw_core->irq_event_handler_lock);
|
|
list_add_tail(&item->list, &mlxsw_core->irq_event_handler_list);
|
|
mutex_unlock(&mlxsw_core->irq_event_handler_lock);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_irq_event_handler_register);
|
|
|
|
void mlxsw_core_irq_event_handler_unregister(struct mlxsw_core *mlxsw_core,
|
|
mlxsw_irq_event_cb_t cb)
|
|
{
|
|
struct mlxsw_core_irq_event_handler_item *item, *tmp;
|
|
|
|
mutex_lock(&mlxsw_core->irq_event_handler_lock);
|
|
list_for_each_entry_safe(item, tmp,
|
|
&mlxsw_core->irq_event_handler_list, list) {
|
|
if (item->cb == cb) {
|
|
list_del(&item->list);
|
|
kfree(item);
|
|
}
|
|
}
|
|
mutex_unlock(&mlxsw_core->irq_event_handler_lock);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_irq_event_handler_unregister);
|
|
|
|
void mlxsw_core_irq_event_handlers_call(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
struct mlxsw_core_irq_event_handler_item *item;
|
|
|
|
mutex_lock(&mlxsw_core->irq_event_handler_lock);
|
|
list_for_each_entry(item, &mlxsw_core->irq_event_handler_list, list) {
|
|
if (item->cb)
|
|
item->cb(mlxsw_core);
|
|
}
|
|
mutex_unlock(&mlxsw_core->irq_event_handler_lock);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_irq_event_handlers_call);
|
|
|
|
static int mlxsw_core_reg_access_cmd(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg,
|
|
char *payload,
|
|
enum mlxsw_core_reg_access_type type)
|
|
{
|
|
enum mlxsw_emad_op_tlv_status status;
|
|
int err, n_retry;
|
|
bool reset_ok;
|
|
char *in_mbox, *out_mbox, *tmp;
|
|
|
|
dev_dbg(mlxsw_core->bus_info->dev, "Reg cmd access (reg_id=%x(%s),type=%s)\n",
|
|
reg->id, mlxsw_reg_id_str(reg->id),
|
|
mlxsw_core_reg_access_type_str(type));
|
|
|
|
in_mbox = mlxsw_cmd_mbox_alloc();
|
|
if (!in_mbox)
|
|
return -ENOMEM;
|
|
|
|
out_mbox = mlxsw_cmd_mbox_alloc();
|
|
if (!out_mbox) {
|
|
err = -ENOMEM;
|
|
goto free_in_mbox;
|
|
}
|
|
|
|
mlxsw_emad_pack_op_tlv(in_mbox, reg, type,
|
|
mlxsw_core_tid_get(mlxsw_core));
|
|
tmp = in_mbox + MLXSW_EMAD_OP_TLV_LEN * sizeof(u32);
|
|
mlxsw_emad_pack_reg_tlv(tmp, reg, payload);
|
|
|
|
/* There is a special treatment needed for MRSR (reset) register.
|
|
* The command interface will return error after the command
|
|
* is executed, so tell the lower layer to expect it
|
|
* and cope accordingly.
|
|
*/
|
|
reset_ok = reg->id == MLXSW_REG_MRSR_ID;
|
|
|
|
n_retry = 0;
|
|
retry:
|
|
err = mlxsw_cmd_access_reg(mlxsw_core, reset_ok, in_mbox, out_mbox);
|
|
if (!err) {
|
|
err = mlxsw_emad_process_status(out_mbox, &status);
|
|
if (err) {
|
|
if (err == -EAGAIN && n_retry++ < MLXSW_EMAD_MAX_RETRY)
|
|
goto retry;
|
|
dev_err(mlxsw_core->bus_info->dev, "Reg cmd access status failed (status=%x(%s))\n",
|
|
status, mlxsw_emad_op_tlv_status_str(status));
|
|
}
|
|
}
|
|
|
|
if (!err)
|
|
memcpy(payload, mlxsw_emad_reg_payload_cmd(out_mbox),
|
|
reg->len);
|
|
|
|
mlxsw_cmd_mbox_free(out_mbox);
|
|
free_in_mbox:
|
|
mlxsw_cmd_mbox_free(in_mbox);
|
|
if (err)
|
|
dev_err(mlxsw_core->bus_info->dev, "Reg cmd access failed (reg_id=%x(%s),type=%s)\n",
|
|
reg->id, mlxsw_reg_id_str(reg->id),
|
|
mlxsw_core_reg_access_type_str(type));
|
|
return err;
|
|
}
|
|
|
|
static void mlxsw_core_reg_access_cb(struct mlxsw_core *mlxsw_core,
|
|
char *payload, size_t payload_len,
|
|
unsigned long cb_priv)
|
|
{
|
|
char *orig_payload = (char *) cb_priv;
|
|
|
|
memcpy(orig_payload, payload, payload_len);
|
|
}
|
|
|
|
static int mlxsw_core_reg_access(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg,
|
|
char *payload,
|
|
enum mlxsw_core_reg_access_type type)
|
|
{
|
|
LIST_HEAD(bulk_list);
|
|
int err;
|
|
|
|
/* During initialization EMAD interface is not available to us,
|
|
* so we default to command interface. We switch to EMAD interface
|
|
* after setting the appropriate traps.
|
|
*/
|
|
if (!mlxsw_core->emad.use_emad)
|
|
return mlxsw_core_reg_access_cmd(mlxsw_core, reg,
|
|
payload, type);
|
|
|
|
err = mlxsw_core_reg_access_emad(mlxsw_core, reg,
|
|
payload, type, &bulk_list,
|
|
mlxsw_core_reg_access_cb,
|
|
(unsigned long) payload);
|
|
if (err)
|
|
return err;
|
|
return mlxsw_reg_trans_bulk_wait(&bulk_list);
|
|
}
|
|
|
|
int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg, char *payload)
|
|
{
|
|
return mlxsw_core_reg_access(mlxsw_core, reg, payload,
|
|
MLXSW_CORE_REG_ACCESS_TYPE_QUERY);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_reg_query);
|
|
|
|
int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_reg_info *reg, char *payload)
|
|
{
|
|
return mlxsw_core_reg_access(mlxsw_core, reg, payload,
|
|
MLXSW_CORE_REG_ACCESS_TYPE_WRITE);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_reg_write);
|
|
|
|
void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
|
|
struct mlxsw_rx_info *rx_info)
|
|
{
|
|
struct mlxsw_rx_listener_item *rxl_item;
|
|
const struct mlxsw_rx_listener *rxl;
|
|
u16 local_port;
|
|
bool found = false;
|
|
|
|
if (rx_info->is_lag) {
|
|
dev_dbg_ratelimited(mlxsw_core->bus_info->dev, "%s: lag_id = %d, lag_port_index = 0x%x\n",
|
|
__func__, rx_info->u.lag_id,
|
|
rx_info->trap_id);
|
|
/* Upper layer does not care if the skb came from LAG or not,
|
|
* so just get the local_port for the lag port and push it up.
|
|
*/
|
|
local_port = mlxsw_core_lag_mapping_get(mlxsw_core,
|
|
rx_info->u.lag_id,
|
|
rx_info->lag_port_index);
|
|
} else {
|
|
local_port = rx_info->u.sys_port;
|
|
}
|
|
|
|
dev_dbg_ratelimited(mlxsw_core->bus_info->dev, "%s: local_port = %d, trap_id = 0x%x\n",
|
|
__func__, local_port, rx_info->trap_id);
|
|
|
|
if ((rx_info->trap_id >= MLXSW_TRAP_ID_MAX) ||
|
|
(local_port >= mlxsw_core->max_ports))
|
|
goto drop;
|
|
|
|
rcu_read_lock();
|
|
list_for_each_entry_rcu(rxl_item, &mlxsw_core->rx_listener_list, list) {
|
|
rxl = &rxl_item->rxl;
|
|
if ((rxl->local_port == MLXSW_PORT_DONT_CARE ||
|
|
rxl->local_port == local_port) &&
|
|
rxl->trap_id == rx_info->trap_id &&
|
|
rxl->mirror_reason == rx_info->mirror_reason) {
|
|
if (rxl_item->enabled)
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
rcu_read_unlock();
|
|
goto drop;
|
|
}
|
|
|
|
rxl->func(skb, local_port, rxl_item->priv);
|
|
rcu_read_unlock();
|
|
return;
|
|
|
|
drop:
|
|
dev_kfree_skb(skb);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_skb_receive);
|
|
|
|
static int mlxsw_core_lag_mapping_index(struct mlxsw_core *mlxsw_core,
|
|
u16 lag_id, u8 port_index)
|
|
{
|
|
return MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS) * lag_id +
|
|
port_index;
|
|
}
|
|
|
|
void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
|
|
u16 lag_id, u8 port_index, u16 local_port)
|
|
{
|
|
int index = mlxsw_core_lag_mapping_index(mlxsw_core,
|
|
lag_id, port_index);
|
|
|
|
mlxsw_core->lag.mapping[index] = local_port;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_lag_mapping_set);
|
|
|
|
u16 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
|
|
u16 lag_id, u8 port_index)
|
|
{
|
|
int index = mlxsw_core_lag_mapping_index(mlxsw_core,
|
|
lag_id, port_index);
|
|
|
|
return mlxsw_core->lag.mapping[index];
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_lag_mapping_get);
|
|
|
|
void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
|
|
u16 lag_id, u16 local_port)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_core, MAX_LAG_MEMBERS); i++) {
|
|
int index = mlxsw_core_lag_mapping_index(mlxsw_core,
|
|
lag_id, i);
|
|
|
|
if (mlxsw_core->lag.mapping[index] == local_port)
|
|
mlxsw_core->lag.mapping[index] = 0;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_lag_mapping_clear);
|
|
|
|
bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core,
|
|
enum mlxsw_res_id res_id)
|
|
{
|
|
return mlxsw_res_valid(&mlxsw_core->res, res_id);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_res_valid);
|
|
|
|
u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
|
|
enum mlxsw_res_id res_id)
|
|
{
|
|
return mlxsw_res_get(&mlxsw_core->res, res_id);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_res_get);
|
|
|
|
static const struct devlink_port_ops mlxsw_devlink_port_ops = {
|
|
.port_split = mlxsw_devlink_port_split,
|
|
.port_unsplit = mlxsw_devlink_port_unsplit,
|
|
};
|
|
|
|
static int __mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u16 local_port,
|
|
enum devlink_port_flavour flavour,
|
|
u8 slot_index, u32 port_number, bool split,
|
|
u32 split_port_subnumber,
|
|
bool splittable, u32 lanes,
|
|
const unsigned char *switch_id,
|
|
unsigned char switch_id_len)
|
|
{
|
|
struct devlink *devlink = priv_to_devlink(mlxsw_core);
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[local_port];
|
|
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
|
|
struct devlink_port_attrs attrs = {};
|
|
int err;
|
|
|
|
attrs.split = split;
|
|
attrs.lanes = lanes;
|
|
attrs.splittable = splittable;
|
|
attrs.flavour = flavour;
|
|
attrs.phys.port_number = port_number;
|
|
attrs.phys.split_subport_number = split_port_subnumber;
|
|
memcpy(attrs.switch_id.id, switch_id, switch_id_len);
|
|
attrs.switch_id.id_len = switch_id_len;
|
|
mlxsw_core_port->local_port = local_port;
|
|
devlink_port_attrs_set(devlink_port, &attrs);
|
|
if (slot_index) {
|
|
struct mlxsw_linecard *linecard;
|
|
|
|
linecard = mlxsw_linecard_get(mlxsw_core->linecards,
|
|
slot_index);
|
|
mlxsw_core_port->linecard = linecard;
|
|
devlink_port_linecard_set(devlink_port,
|
|
linecard->devlink_linecard);
|
|
}
|
|
err = devl_port_register_with_ops(devlink, devlink_port, local_port,
|
|
&mlxsw_devlink_port_ops);
|
|
if (err)
|
|
memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
|
|
return err;
|
|
}
|
|
|
|
static void __mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u16 local_port)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[local_port];
|
|
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
|
|
|
|
devl_port_unregister(devlink_port);
|
|
memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
|
|
}
|
|
|
|
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u16 local_port,
|
|
u8 slot_index, u32 port_number, bool split,
|
|
u32 split_port_subnumber,
|
|
bool splittable, u32 lanes,
|
|
const unsigned char *switch_id,
|
|
unsigned char switch_id_len)
|
|
{
|
|
int err;
|
|
|
|
err = __mlxsw_core_port_init(mlxsw_core, local_port,
|
|
DEVLINK_PORT_FLAVOUR_PHYSICAL, slot_index,
|
|
port_number, split, split_port_subnumber,
|
|
splittable, lanes,
|
|
switch_id, switch_id_len);
|
|
if (err)
|
|
return err;
|
|
|
|
atomic_inc(&mlxsw_core->active_ports_count);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_port_init);
|
|
|
|
void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u16 local_port)
|
|
{
|
|
atomic_dec(&mlxsw_core->active_ports_count);
|
|
|
|
__mlxsw_core_port_fini(mlxsw_core, local_port);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_port_fini);
|
|
|
|
int mlxsw_core_cpu_port_init(struct mlxsw_core *mlxsw_core,
|
|
void *port_driver_priv,
|
|
const unsigned char *switch_id,
|
|
unsigned char switch_id_len)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[MLXSW_PORT_CPU_PORT];
|
|
int err;
|
|
|
|
err = __mlxsw_core_port_init(mlxsw_core, MLXSW_PORT_CPU_PORT,
|
|
DEVLINK_PORT_FLAVOUR_CPU,
|
|
0, 0, false, 0, false, 0,
|
|
switch_id, switch_id_len);
|
|
if (err)
|
|
return err;
|
|
|
|
mlxsw_core_port->port_driver_priv = port_driver_priv;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_cpu_port_init);
|
|
|
|
void mlxsw_core_cpu_port_fini(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
__mlxsw_core_port_fini(mlxsw_core, MLXSW_PORT_CPU_PORT);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_cpu_port_fini);
|
|
|
|
void mlxsw_core_port_netdev_link(struct mlxsw_core *mlxsw_core, u16 local_port,
|
|
void *port_driver_priv, struct net_device *dev)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[local_port];
|
|
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
|
|
|
|
mlxsw_core_port->port_driver_priv = port_driver_priv;
|
|
SET_NETDEV_DEVLINK_PORT(dev, devlink_port);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_port_netdev_link);
|
|
|
|
struct devlink_port *
|
|
mlxsw_core_port_devlink_port_get(struct mlxsw_core *mlxsw_core,
|
|
u16 local_port)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[local_port];
|
|
struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
|
|
|
|
return devlink_port;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_port_devlink_port_get);
|
|
|
|
struct mlxsw_linecard *
|
|
mlxsw_core_port_linecard_get(struct mlxsw_core *mlxsw_core,
|
|
u16 local_port)
|
|
{
|
|
struct mlxsw_core_port *mlxsw_core_port =
|
|
&mlxsw_core->ports[local_port];
|
|
|
|
return mlxsw_core_port->linecard;
|
|
}
|
|
|
|
void mlxsw_core_ports_remove_selected(struct mlxsw_core *mlxsw_core,
|
|
bool (*selector)(void *priv, u16 local_port),
|
|
void *priv)
|
|
{
|
|
if (WARN_ON_ONCE(!mlxsw_core->driver->ports_remove_selected))
|
|
return;
|
|
mlxsw_core->driver->ports_remove_selected(mlxsw_core, selector, priv);
|
|
}
|
|
|
|
struct mlxsw_env *mlxsw_core_env(const struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->env;
|
|
}
|
|
|
|
static void mlxsw_core_buf_dump_dbg(struct mlxsw_core *mlxsw_core,
|
|
const char *buf, size_t size)
|
|
{
|
|
__be32 *m = (__be32 *) buf;
|
|
int i;
|
|
int count = size / sizeof(__be32);
|
|
|
|
for (i = count - 1; i >= 0; i--)
|
|
if (m[i])
|
|
break;
|
|
i++;
|
|
count = i ? i : 1;
|
|
for (i = 0; i < count; i += 4)
|
|
dev_dbg(mlxsw_core->bus_info->dev, "%04x - %08x %08x %08x %08x\n",
|
|
i * 4, be32_to_cpu(m[i]), be32_to_cpu(m[i + 1]),
|
|
be32_to_cpu(m[i + 2]), be32_to_cpu(m[i + 3]));
|
|
}
|
|
|
|
int mlxsw_cmd_exec(struct mlxsw_core *mlxsw_core, u16 opcode, u8 opcode_mod,
|
|
u32 in_mod, bool out_mbox_direct, bool reset_ok,
|
|
char *in_mbox, size_t in_mbox_size,
|
|
char *out_mbox, size_t out_mbox_size)
|
|
{
|
|
u8 status;
|
|
int err;
|
|
|
|
BUG_ON(in_mbox_size % sizeof(u32) || out_mbox_size % sizeof(u32));
|
|
if (!mlxsw_core->bus->cmd_exec)
|
|
return -EOPNOTSUPP;
|
|
|
|
dev_dbg(mlxsw_core->bus_info->dev, "Cmd exec (opcode=%x(%s),opcode_mod=%x,in_mod=%x)\n",
|
|
opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod, in_mod);
|
|
if (in_mbox) {
|
|
dev_dbg(mlxsw_core->bus_info->dev, "Input mailbox:\n");
|
|
mlxsw_core_buf_dump_dbg(mlxsw_core, in_mbox, in_mbox_size);
|
|
}
|
|
|
|
err = mlxsw_core->bus->cmd_exec(mlxsw_core->bus_priv, opcode,
|
|
opcode_mod, in_mod, out_mbox_direct,
|
|
in_mbox, in_mbox_size,
|
|
out_mbox, out_mbox_size, &status);
|
|
|
|
if (!err && out_mbox) {
|
|
dev_dbg(mlxsw_core->bus_info->dev, "Output mailbox:\n");
|
|
mlxsw_core_buf_dump_dbg(mlxsw_core, out_mbox, out_mbox_size);
|
|
}
|
|
|
|
if (reset_ok && err == -EIO &&
|
|
status == MLXSW_CMD_STATUS_RUNNING_RESET) {
|
|
err = 0;
|
|
} else if (err == -EIO && status != MLXSW_CMD_STATUS_OK) {
|
|
dev_err(mlxsw_core->bus_info->dev, "Cmd exec failed (opcode=%x(%s),opcode_mod=%x,in_mod=%x,status=%x(%s))\n",
|
|
opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod,
|
|
in_mod, status, mlxsw_cmd_status_str(status));
|
|
} else if (err == -ETIMEDOUT) {
|
|
dev_err(mlxsw_core->bus_info->dev, "Cmd exec timed-out (opcode=%x(%s),opcode_mod=%x,in_mod=%x)\n",
|
|
opcode, mlxsw_cmd_opcode_str(opcode), opcode_mod,
|
|
in_mod);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_cmd_exec);
|
|
|
|
int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay)
|
|
{
|
|
return queue_delayed_work(mlxsw_wq, dwork, delay);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_schedule_dw);
|
|
|
|
bool mlxsw_core_schedule_work(struct work_struct *work)
|
|
{
|
|
return queue_work(mlxsw_owq, work);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_schedule_work);
|
|
|
|
void mlxsw_core_flush_owq(void)
|
|
{
|
|
flush_workqueue(mlxsw_owq);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_flush_owq);
|
|
|
|
int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
|
|
const struct mlxsw_config_profile *profile,
|
|
u64 *p_single_size, u64 *p_double_size,
|
|
u64 *p_linear_size)
|
|
{
|
|
struct mlxsw_driver *driver = mlxsw_core->driver;
|
|
|
|
if (!driver->kvd_sizes_get)
|
|
return -EINVAL;
|
|
|
|
return driver->kvd_sizes_get(mlxsw_core, profile,
|
|
p_single_size, p_double_size,
|
|
p_linear_size);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_kvd_sizes_get);
|
|
|
|
int mlxsw_core_resources_query(struct mlxsw_core *mlxsw_core, char *mbox,
|
|
struct mlxsw_res *res)
|
|
{
|
|
int index, i;
|
|
u64 data;
|
|
u16 id;
|
|
int err;
|
|
|
|
mlxsw_cmd_mbox_zero(mbox);
|
|
|
|
for (index = 0; index < MLXSW_CMD_QUERY_RESOURCES_MAX_QUERIES;
|
|
index++) {
|
|
err = mlxsw_cmd_query_resources(mlxsw_core, mbox, index);
|
|
if (err)
|
|
return err;
|
|
|
|
for (i = 0; i < MLXSW_CMD_QUERY_RESOURCES_PER_QUERY; i++) {
|
|
id = mlxsw_cmd_mbox_query_resource_id_get(mbox, i);
|
|
data = mlxsw_cmd_mbox_query_resource_data_get(mbox, i);
|
|
|
|
if (id == MLXSW_CMD_QUERY_RESOURCES_TABLE_END_ID)
|
|
return 0;
|
|
|
|
mlxsw_res_parse(res, id, data);
|
|
}
|
|
}
|
|
|
|
/* If after MLXSW_RESOURCES_QUERY_MAX_QUERIES we still didn't get
|
|
* MLXSW_RESOURCES_TABLE_END_ID, something went bad in the FW.
|
|
*/
|
|
return -EIO;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_resources_query);
|
|
|
|
u32 mlxsw_core_read_frc_h(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->bus->read_frc_h(mlxsw_core->bus_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_read_frc_h);
|
|
|
|
u32 mlxsw_core_read_frc_l(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->bus->read_frc_l(mlxsw_core->bus_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_read_frc_l);
|
|
|
|
u32 mlxsw_core_read_utc_sec(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->bus->read_utc_sec(mlxsw_core->bus_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_read_utc_sec);
|
|
|
|
u32 mlxsw_core_read_utc_nsec(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->bus->read_utc_nsec(mlxsw_core->bus_priv);
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_read_utc_nsec);
|
|
|
|
bool mlxsw_core_sdq_supports_cqe_v2(struct mlxsw_core *mlxsw_core)
|
|
{
|
|
return mlxsw_core->driver->sdq_supports_cqe_v2;
|
|
}
|
|
EXPORT_SYMBOL(mlxsw_core_sdq_supports_cqe_v2);
|
|
|
|
static int __init mlxsw_core_module_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = mlxsw_linecard_driver_register();
|
|
if (err)
|
|
return err;
|
|
|
|
mlxsw_wq = alloc_workqueue(mlxsw_core_driver_name, 0, 0);
|
|
if (!mlxsw_wq) {
|
|
err = -ENOMEM;
|
|
goto err_alloc_workqueue;
|
|
}
|
|
mlxsw_owq = alloc_ordered_workqueue("%s_ordered", 0,
|
|
mlxsw_core_driver_name);
|
|
if (!mlxsw_owq) {
|
|
err = -ENOMEM;
|
|
goto err_alloc_ordered_workqueue;
|
|
}
|
|
return 0;
|
|
|
|
err_alloc_ordered_workqueue:
|
|
destroy_workqueue(mlxsw_wq);
|
|
err_alloc_workqueue:
|
|
mlxsw_linecard_driver_unregister();
|
|
return err;
|
|
}
|
|
|
|
static void __exit mlxsw_core_module_exit(void)
|
|
{
|
|
destroy_workqueue(mlxsw_owq);
|
|
destroy_workqueue(mlxsw_wq);
|
|
mlxsw_linecard_driver_unregister();
|
|
}
|
|
|
|
module_init(mlxsw_core_module_init);
|
|
module_exit(mlxsw_core_module_exit);
|
|
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
|
|
MODULE_DESCRIPTION("Mellanox switch device core driver");
|