13d249d4cSJiri Pirko /* 23d249d4cSJiri Pirko * net/drivers/team/team.c - Network team device driver 33d249d4cSJiri Pirko * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> 43d249d4cSJiri Pirko * 53d249d4cSJiri Pirko * This program is free software; you can redistribute it and/or modify 63d249d4cSJiri Pirko * it under the terms of the GNU General Public License as published by 73d249d4cSJiri Pirko * the Free Software Foundation; either version 2 of the License, or 83d249d4cSJiri Pirko * (at your option) any later version. 93d249d4cSJiri Pirko */ 103d249d4cSJiri Pirko 113d249d4cSJiri Pirko #include <linux/kernel.h> 123d249d4cSJiri Pirko #include <linux/types.h> 133d249d4cSJiri Pirko #include <linux/module.h> 143d249d4cSJiri Pirko #include <linux/init.h> 153d249d4cSJiri Pirko #include <linux/slab.h> 163d249d4cSJiri Pirko #include <linux/rcupdate.h> 173d249d4cSJiri Pirko #include <linux/errno.h> 183d249d4cSJiri Pirko #include <linux/ctype.h> 193d249d4cSJiri Pirko #include <linux/notifier.h> 203d249d4cSJiri Pirko #include <linux/netdevice.h> 2187002b03SJiri Pirko #include <linux/if_vlan.h> 223d249d4cSJiri Pirko #include <linux/if_arp.h> 233d249d4cSJiri Pirko #include <linux/socket.h> 243d249d4cSJiri Pirko #include <linux/etherdevice.h> 253d249d4cSJiri Pirko #include <linux/rtnetlink.h> 263d249d4cSJiri Pirko #include <net/rtnetlink.h> 273d249d4cSJiri Pirko #include <net/genetlink.h> 283d249d4cSJiri Pirko #include <net/netlink.h> 293d249d4cSJiri Pirko #include <linux/if_team.h> 303d249d4cSJiri Pirko 313d249d4cSJiri Pirko #define DRV_NAME "team" 323d249d4cSJiri Pirko 333d249d4cSJiri Pirko 343d249d4cSJiri Pirko /********** 353d249d4cSJiri Pirko * Helpers 363d249d4cSJiri Pirko **********/ 373d249d4cSJiri Pirko 383d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 393d249d4cSJiri Pirko 403d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 413d249d4cSJiri Pirko { 423d249d4cSJiri Pirko struct team_port *port = rcu_dereference(dev->rx_handler_data); 433d249d4cSJiri Pirko 443d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 453d249d4cSJiri Pirko } 463d249d4cSJiri Pirko 473d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 483d249d4cSJiri Pirko { 493d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 503d249d4cSJiri Pirko 513d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 523d249d4cSJiri Pirko } 533d249d4cSJiri Pirko 543d249d4cSJiri Pirko /* 553d249d4cSJiri Pirko * Since the ability to change mac address for open port device is tested in 563d249d4cSJiri Pirko * team_port_add, this function can be called without control of return value 573d249d4cSJiri Pirko */ 583d249d4cSJiri Pirko static int __set_port_mac(struct net_device *port_dev, 593d249d4cSJiri Pirko const unsigned char *dev_addr) 603d249d4cSJiri Pirko { 613d249d4cSJiri Pirko struct sockaddr addr; 623d249d4cSJiri Pirko 633d249d4cSJiri Pirko memcpy(addr.sa_data, dev_addr, ETH_ALEN); 643d249d4cSJiri Pirko addr.sa_family = ARPHRD_ETHER; 653d249d4cSJiri Pirko return dev_set_mac_address(port_dev, &addr); 663d249d4cSJiri Pirko } 673d249d4cSJiri Pirko 68cade4555SJiri Pirko static int team_port_set_orig_mac(struct team_port *port) 693d249d4cSJiri Pirko { 703d249d4cSJiri Pirko return __set_port_mac(port->dev, port->orig.dev_addr); 713d249d4cSJiri Pirko } 723d249d4cSJiri Pirko 733d249d4cSJiri Pirko int team_port_set_team_mac(struct team_port *port) 743d249d4cSJiri Pirko { 753d249d4cSJiri Pirko return __set_port_mac(port->dev, port->team->dev->dev_addr); 763d249d4cSJiri Pirko } 773d249d4cSJiri Pirko EXPORT_SYMBOL(team_port_set_team_mac); 783d249d4cSJiri Pirko 7971472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 8071472ec1SJiri Pirko { 8171472ec1SJiri Pirko port->linkup = port->user.linkup_enabled ? port->user.linkup : 8271472ec1SJiri Pirko port->state.linkup; 8371472ec1SJiri Pirko } 843d249d4cSJiri Pirko 853d249d4cSJiri Pirko /******************* 863d249d4cSJiri Pirko * Options handling 873d249d4cSJiri Pirko *******************/ 883d249d4cSJiri Pirko 8980f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 9080f7c668SJiri Pirko struct list_head list; 9180f7c668SJiri Pirko struct team_option *option; 9280f7c668SJiri Pirko struct team_port *port; /* != NULL if per-port */ 9380f7c668SJiri Pirko bool changed; 9480f7c668SJiri Pirko bool removed; 9580f7c668SJiri Pirko }; 9680f7c668SJiri Pirko 9780f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 9880f7c668SJiri Pirko const char *opt_name) 99358b8382SJiri Pirko { 100358b8382SJiri Pirko struct team_option *option; 101358b8382SJiri Pirko 102358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 103358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 104358b8382SJiri Pirko return option; 105358b8382SJiri Pirko } 106358b8382SJiri Pirko return NULL; 107358b8382SJiri Pirko } 108358b8382SJiri Pirko 10980f7c668SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 11080f7c668SJiri Pirko struct team_port *port) 11180f7c668SJiri Pirko { 11280f7c668SJiri Pirko struct team_option_inst *opt_inst; 11380f7c668SJiri Pirko 11480f7c668SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 11580f7c668SJiri Pirko if (!opt_inst) 11680f7c668SJiri Pirko return -ENOMEM; 11780f7c668SJiri Pirko opt_inst->option = option; 11880f7c668SJiri Pirko opt_inst->port = port; 11980f7c668SJiri Pirko opt_inst->changed = true; 12080f7c668SJiri Pirko opt_inst->removed = false; 12180f7c668SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 12280f7c668SJiri Pirko return 0; 12380f7c668SJiri Pirko } 12480f7c668SJiri Pirko 12580f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 12680f7c668SJiri Pirko { 12780f7c668SJiri Pirko list_del(&opt_inst->list); 12880f7c668SJiri Pirko kfree(opt_inst); 12980f7c668SJiri Pirko } 13080f7c668SJiri Pirko 13180f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 13280f7c668SJiri Pirko struct team_option *option) 13380f7c668SJiri Pirko { 13480f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 13580f7c668SJiri Pirko 13680f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 13780f7c668SJiri Pirko if (opt_inst->option == option) 13880f7c668SJiri Pirko __team_option_inst_del(opt_inst); 13980f7c668SJiri Pirko } 14080f7c668SJiri Pirko } 14180f7c668SJiri Pirko 14280f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 14380f7c668SJiri Pirko struct team_option *option) 14480f7c668SJiri Pirko { 14580f7c668SJiri Pirko struct team_port *port; 14680f7c668SJiri Pirko int err; 14780f7c668SJiri Pirko 14880f7c668SJiri Pirko if (!option->per_port) 14980f7c668SJiri Pirko return __team_option_inst_add(team, option, 0); 15080f7c668SJiri Pirko 15180f7c668SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 15280f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 15380f7c668SJiri Pirko if (err) 15480f7c668SJiri Pirko goto inst_del_option; 15580f7c668SJiri Pirko } 15680f7c668SJiri Pirko return 0; 15780f7c668SJiri Pirko 15880f7c668SJiri Pirko inst_del_option: 15980f7c668SJiri Pirko __team_option_inst_del_option(team, option); 16080f7c668SJiri Pirko return err; 16180f7c668SJiri Pirko } 16280f7c668SJiri Pirko 16380f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 16480f7c668SJiri Pirko struct team_option *option) 16580f7c668SJiri Pirko { 16680f7c668SJiri Pirko struct team_option_inst *opt_inst; 16780f7c668SJiri Pirko 16880f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 16980f7c668SJiri Pirko if (opt_inst->option == option) { 17080f7c668SJiri Pirko opt_inst->changed = true; 17180f7c668SJiri Pirko opt_inst->removed = true; 17280f7c668SJiri Pirko } 17380f7c668SJiri Pirko } 17480f7c668SJiri Pirko } 17580f7c668SJiri Pirko 17680f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 17780f7c668SJiri Pirko struct team_port *port) 17880f7c668SJiri Pirko { 17980f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 18080f7c668SJiri Pirko 18180f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 18280f7c668SJiri Pirko if (opt_inst->option->per_port && 18380f7c668SJiri Pirko opt_inst->port == port) 18480f7c668SJiri Pirko __team_option_inst_del(opt_inst); 18580f7c668SJiri Pirko } 18680f7c668SJiri Pirko } 18780f7c668SJiri Pirko 18880f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 18980f7c668SJiri Pirko struct team_port *port) 19080f7c668SJiri Pirko { 19180f7c668SJiri Pirko struct team_option *option; 19280f7c668SJiri Pirko int err; 19380f7c668SJiri Pirko 19480f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 19580f7c668SJiri Pirko if (!option->per_port) 19680f7c668SJiri Pirko continue; 19780f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 19880f7c668SJiri Pirko if (err) 19980f7c668SJiri Pirko goto inst_del_port; 20080f7c668SJiri Pirko } 20180f7c668SJiri Pirko return 0; 20280f7c668SJiri Pirko 20380f7c668SJiri Pirko inst_del_port: 20480f7c668SJiri Pirko __team_option_inst_del_port(team, port); 20580f7c668SJiri Pirko return err; 20680f7c668SJiri Pirko } 20780f7c668SJiri Pirko 20880f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 20980f7c668SJiri Pirko struct team_port *port) 21080f7c668SJiri Pirko { 21180f7c668SJiri Pirko struct team_option_inst *opt_inst; 21280f7c668SJiri Pirko 21380f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 21480f7c668SJiri Pirko if (opt_inst->port == port) { 21580f7c668SJiri Pirko opt_inst->changed = true; 21680f7c668SJiri Pirko opt_inst->removed = true; 21780f7c668SJiri Pirko } 21880f7c668SJiri Pirko } 21980f7c668SJiri Pirko } 22080f7c668SJiri Pirko 22180f7c668SJiri Pirko static int __team_options_register(struct team *team, 222358b8382SJiri Pirko const struct team_option *option, 2233d249d4cSJiri Pirko size_t option_count) 2243d249d4cSJiri Pirko { 2253d249d4cSJiri Pirko int i; 2262bba19ffSJiri Pirko struct team_option **dst_opts; 227358b8382SJiri Pirko int err; 2283d249d4cSJiri Pirko 2292bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2302bba19ffSJiri Pirko GFP_KERNEL); 2312bba19ffSJiri Pirko if (!dst_opts) 2322bba19ffSJiri Pirko return -ENOMEM; 233358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 234358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 235358b8382SJiri Pirko err = -EEXIST; 23680f7c668SJiri Pirko goto alloc_rollback; 2373d249d4cSJiri Pirko } 238f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 239f8a15af0SJiri Pirko if (!dst_opts[i]) { 240358b8382SJiri Pirko err = -ENOMEM; 24180f7c668SJiri Pirko goto alloc_rollback; 242358b8382SJiri Pirko } 243358b8382SJiri Pirko } 244358b8382SJiri Pirko 245b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 24680f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 24780f7c668SJiri Pirko if (err) 24880f7c668SJiri Pirko goto inst_rollback; 249358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 250b82b9183SJiri Pirko } 251358b8382SJiri Pirko 2522bba19ffSJiri Pirko kfree(dst_opts); 253358b8382SJiri Pirko return 0; 254358b8382SJiri Pirko 25580f7c668SJiri Pirko inst_rollback: 25680f7c668SJiri Pirko for (i--; i >= 0; i--) 25780f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 25880f7c668SJiri Pirko 25980f7c668SJiri Pirko i = option_count - 1; 26080f7c668SJiri Pirko alloc_rollback: 26180f7c668SJiri Pirko for (i--; i >= 0; i--) 262358b8382SJiri Pirko kfree(dst_opts[i]); 263358b8382SJiri Pirko 2642bba19ffSJiri Pirko kfree(dst_opts); 265358b8382SJiri Pirko return err; 266358b8382SJiri Pirko } 267358b8382SJiri Pirko 268b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 269b82b9183SJiri Pirko const struct team_option *option, 270b82b9183SJiri Pirko size_t option_count) 271b82b9183SJiri Pirko { 272b82b9183SJiri Pirko int i; 2733d249d4cSJiri Pirko 274b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 275b82b9183SJiri Pirko struct team_option *del_opt; 276b82b9183SJiri Pirko 277b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 27880f7c668SJiri Pirko if (del_opt) 27980f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 280b82b9183SJiri Pirko } 281b82b9183SJiri Pirko } 2823d249d4cSJiri Pirko 2833d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 284358b8382SJiri Pirko const struct team_option *option, 2853d249d4cSJiri Pirko size_t option_count) 2863d249d4cSJiri Pirko { 2873d249d4cSJiri Pirko int i; 2883d249d4cSJiri Pirko 289358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 290358b8382SJiri Pirko struct team_option *del_opt; 291358b8382SJiri Pirko 292358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 293358b8382SJiri Pirko if (del_opt) { 29480f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 295358b8382SJiri Pirko list_del(&del_opt->list); 296358b8382SJiri Pirko kfree(del_opt); 297358b8382SJiri Pirko } 298358b8382SJiri Pirko } 2993d249d4cSJiri Pirko } 3003d249d4cSJiri Pirko 301b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 302b82b9183SJiri Pirko 303b82b9183SJiri Pirko int team_options_register(struct team *team, 304b82b9183SJiri Pirko const struct team_option *option, 305b82b9183SJiri Pirko size_t option_count) 306b82b9183SJiri Pirko { 307b82b9183SJiri Pirko int err; 308b82b9183SJiri Pirko 309b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 310b82b9183SJiri Pirko if (err) 311b82b9183SJiri Pirko return err; 312b82b9183SJiri Pirko __team_options_change_check(team); 313b82b9183SJiri Pirko return 0; 314b82b9183SJiri Pirko } 315b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 316b82b9183SJiri Pirko 317358b8382SJiri Pirko void team_options_unregister(struct team *team, 318358b8382SJiri Pirko const struct team_option *option, 3193d249d4cSJiri Pirko size_t option_count) 3203d249d4cSJiri Pirko { 321b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 322b82b9183SJiri Pirko __team_options_change_check(team); 3233d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3243d249d4cSJiri Pirko } 3253d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3263d249d4cSJiri Pirko 32780f7c668SJiri Pirko static int team_option_port_add(struct team *team, struct team_port *port) 3283d249d4cSJiri Pirko { 3293d249d4cSJiri Pirko int err; 3303d249d4cSJiri Pirko 33180f7c668SJiri Pirko err = __team_option_inst_add_port(team, port); 33280f7c668SJiri Pirko if (err) 33380f7c668SJiri Pirko return err; 33480f7c668SJiri Pirko __team_options_change_check(team); 33580f7c668SJiri Pirko return 0; 33680f7c668SJiri Pirko } 33780f7c668SJiri Pirko 33880f7c668SJiri Pirko static void team_option_port_del(struct team *team, struct team_port *port) 33980f7c668SJiri Pirko { 34080f7c668SJiri Pirko __team_option_inst_mark_removed_port(team, port); 34180f7c668SJiri Pirko __team_options_change_check(team); 34280f7c668SJiri Pirko __team_option_inst_del_port(team, port); 34380f7c668SJiri Pirko } 34480f7c668SJiri Pirko 34580f7c668SJiri Pirko static int team_option_get(struct team *team, 34680f7c668SJiri Pirko struct team_option_inst *opt_inst, 34780f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 34880f7c668SJiri Pirko { 34980f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 35080f7c668SJiri Pirko } 35180f7c668SJiri Pirko 35280f7c668SJiri Pirko static int team_option_set(struct team *team, 35380f7c668SJiri Pirko struct team_option_inst *opt_inst, 35480f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 35580f7c668SJiri Pirko { 35680f7c668SJiri Pirko int err; 35780f7c668SJiri Pirko 35880f7c668SJiri Pirko err = opt_inst->option->setter(team, ctx); 3593d249d4cSJiri Pirko if (err) 3603d249d4cSJiri Pirko return err; 3613d249d4cSJiri Pirko 36280f7c668SJiri Pirko opt_inst->changed = true; 363b82b9183SJiri Pirko __team_options_change_check(team); 3643d249d4cSJiri Pirko return err; 3653d249d4cSJiri Pirko } 3663d249d4cSJiri Pirko 3673d249d4cSJiri Pirko /**************** 3683d249d4cSJiri Pirko * Mode handling 3693d249d4cSJiri Pirko ****************/ 3703d249d4cSJiri Pirko 3713d249d4cSJiri Pirko static LIST_HEAD(mode_list); 3723d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 3733d249d4cSJiri Pirko 3743d249d4cSJiri Pirko static struct team_mode *__find_mode(const char *kind) 3753d249d4cSJiri Pirko { 3763d249d4cSJiri Pirko struct team_mode *mode; 3773d249d4cSJiri Pirko 3783d249d4cSJiri Pirko list_for_each_entry(mode, &mode_list, list) { 3793d249d4cSJiri Pirko if (strcmp(mode->kind, kind) == 0) 3803d249d4cSJiri Pirko return mode; 3813d249d4cSJiri Pirko } 3823d249d4cSJiri Pirko return NULL; 3833d249d4cSJiri Pirko } 3843d249d4cSJiri Pirko 3853d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 3863d249d4cSJiri Pirko { 3873d249d4cSJiri Pirko while (*name != '\0') { 3883d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 3893d249d4cSJiri Pirko return false; 3903d249d4cSJiri Pirko name++; 3913d249d4cSJiri Pirko } 3923d249d4cSJiri Pirko return true; 3933d249d4cSJiri Pirko } 3943d249d4cSJiri Pirko 3953d249d4cSJiri Pirko int team_mode_register(struct team_mode *mode) 3963d249d4cSJiri Pirko { 3973d249d4cSJiri Pirko int err = 0; 3983d249d4cSJiri Pirko 3993d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4003d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4013d249d4cSJiri Pirko return -EINVAL; 4023d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4033d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4043d249d4cSJiri Pirko err = -EEXIST; 4053d249d4cSJiri Pirko goto unlock; 4063d249d4cSJiri Pirko } 4073d249d4cSJiri Pirko list_add_tail(&mode->list, &mode_list); 4083d249d4cSJiri Pirko unlock: 4093d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4103d249d4cSJiri Pirko return err; 4113d249d4cSJiri Pirko } 4123d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4133d249d4cSJiri Pirko 4143d249d4cSJiri Pirko int team_mode_unregister(struct team_mode *mode) 4153d249d4cSJiri Pirko { 4163d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4173d249d4cSJiri Pirko list_del_init(&mode->list); 4183d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4193d249d4cSJiri Pirko return 0; 4203d249d4cSJiri Pirko } 4213d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4223d249d4cSJiri Pirko 4233d249d4cSJiri Pirko static struct team_mode *team_mode_get(const char *kind) 4243d249d4cSJiri Pirko { 4253d249d4cSJiri Pirko struct team_mode *mode; 4263d249d4cSJiri Pirko 4273d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4283d249d4cSJiri Pirko mode = __find_mode(kind); 4293d249d4cSJiri Pirko if (!mode) { 4303d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4313d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4323d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4333d249d4cSJiri Pirko mode = __find_mode(kind); 4343d249d4cSJiri Pirko } 4353d249d4cSJiri Pirko if (mode) 4363d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4373d249d4cSJiri Pirko mode = NULL; 4383d249d4cSJiri Pirko 4393d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4403d249d4cSJiri Pirko return mode; 4413d249d4cSJiri Pirko } 4423d249d4cSJiri Pirko 4433d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 4443d249d4cSJiri Pirko { 4453d249d4cSJiri Pirko module_put(mode->owner); 4463d249d4cSJiri Pirko } 4473d249d4cSJiri Pirko 4483d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 4493d249d4cSJiri Pirko { 4503d249d4cSJiri Pirko dev_kfree_skb_any(skb); 4513d249d4cSJiri Pirko return false; 4523d249d4cSJiri Pirko } 4533d249d4cSJiri Pirko 4543d249d4cSJiri Pirko rx_handler_result_t team_dummy_receive(struct team *team, 4553d249d4cSJiri Pirko struct team_port *port, 4563d249d4cSJiri Pirko struct sk_buff *skb) 4573d249d4cSJiri Pirko { 4583d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 4593d249d4cSJiri Pirko } 4603d249d4cSJiri Pirko 4613d249d4cSJiri Pirko static void team_adjust_ops(struct team *team) 4623d249d4cSJiri Pirko { 4633d249d4cSJiri Pirko /* 4643d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 4653d249d4cSJiri Pirko * correct ops are always set. 4663d249d4cSJiri Pirko */ 4673d249d4cSJiri Pirko 4683d249d4cSJiri Pirko if (list_empty(&team->port_list) || 4693d249d4cSJiri Pirko !team->mode || !team->mode->ops->transmit) 4703d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 4713d249d4cSJiri Pirko else 4723d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 4733d249d4cSJiri Pirko 4743d249d4cSJiri Pirko if (list_empty(&team->port_list) || 4753d249d4cSJiri Pirko !team->mode || !team->mode->ops->receive) 4763d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 4773d249d4cSJiri Pirko else 4783d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 4793d249d4cSJiri Pirko } 4803d249d4cSJiri Pirko 4813d249d4cSJiri Pirko /* 4823d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 4833d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 4843d249d4cSJiri Pirko * need to set mode operations in any special way. 4853d249d4cSJiri Pirko */ 4863d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 4873d249d4cSJiri Pirko const struct team_mode *new_mode) 4883d249d4cSJiri Pirko { 4893d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 4903d249d4cSJiri Pirko if (team->mode) { 4913d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 4923d249d4cSJiri Pirko 4933d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 4943d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 4953d249d4cSJiri Pirko team_adjust_ops(team); 4963d249d4cSJiri Pirko 4973d249d4cSJiri Pirko if (exit_op) 4983d249d4cSJiri Pirko exit_op(team); 4993d249d4cSJiri Pirko team_mode_put(team->mode); 5003d249d4cSJiri Pirko team->mode = NULL; 5013d249d4cSJiri Pirko /* zero private data area */ 5023d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5033d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5043d249d4cSJiri Pirko } 5053d249d4cSJiri Pirko 5063d249d4cSJiri Pirko if (!new_mode) 5073d249d4cSJiri Pirko return 0; 5083d249d4cSJiri Pirko 5093d249d4cSJiri Pirko if (new_mode->ops->init) { 5103d249d4cSJiri Pirko int err; 5113d249d4cSJiri Pirko 5123d249d4cSJiri Pirko err = new_mode->ops->init(team); 5133d249d4cSJiri Pirko if (err) 5143d249d4cSJiri Pirko return err; 5153d249d4cSJiri Pirko } 5163d249d4cSJiri Pirko 5173d249d4cSJiri Pirko team->mode = new_mode; 5183d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5193d249d4cSJiri Pirko team_adjust_ops(team); 5203d249d4cSJiri Pirko 5213d249d4cSJiri Pirko return 0; 5223d249d4cSJiri Pirko } 5233d249d4cSJiri Pirko 5243d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5253d249d4cSJiri Pirko { 5263d249d4cSJiri Pirko struct team_mode *new_mode; 5273d249d4cSJiri Pirko struct net_device *dev = team->dev; 5283d249d4cSJiri Pirko int err; 5293d249d4cSJiri Pirko 5303d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 5313d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 5323d249d4cSJiri Pirko return -EBUSY; 5333d249d4cSJiri Pirko } 5343d249d4cSJiri Pirko 5353d249d4cSJiri Pirko if (team->mode && strcmp(team->mode->kind, kind) == 0) { 5363d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 5373d249d4cSJiri Pirko return -EINVAL; 5383d249d4cSJiri Pirko } 5393d249d4cSJiri Pirko 5403d249d4cSJiri Pirko new_mode = team_mode_get(kind); 5413d249d4cSJiri Pirko if (!new_mode) { 5423d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 5433d249d4cSJiri Pirko return -EINVAL; 5443d249d4cSJiri Pirko } 5453d249d4cSJiri Pirko 5463d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 5473d249d4cSJiri Pirko if (err) { 5483d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 5493d249d4cSJiri Pirko team_mode_put(new_mode); 5503d249d4cSJiri Pirko return err; 5513d249d4cSJiri Pirko } 5523d249d4cSJiri Pirko 5533d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 5543d249d4cSJiri Pirko return 0; 5553d249d4cSJiri Pirko } 5563d249d4cSJiri Pirko 5573d249d4cSJiri Pirko 5583d249d4cSJiri Pirko /************************ 5593d249d4cSJiri Pirko * Rx path frame handler 5603d249d4cSJiri Pirko ************************/ 5613d249d4cSJiri Pirko 56219a0b58eSJiri Pirko static bool team_port_enabled(struct team_port *port); 56319a0b58eSJiri Pirko 5643d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 5653d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 5663d249d4cSJiri Pirko { 5673d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 5683d249d4cSJiri Pirko struct team_port *port; 5693d249d4cSJiri Pirko struct team *team; 5703d249d4cSJiri Pirko rx_handler_result_t res; 5713d249d4cSJiri Pirko 5723d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 5733d249d4cSJiri Pirko if (!skb) 5743d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 5753d249d4cSJiri Pirko 5763d249d4cSJiri Pirko *pskb = skb; 5773d249d4cSJiri Pirko 5783d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 5793d249d4cSJiri Pirko team = port->team; 58019a0b58eSJiri Pirko if (!team_port_enabled(port)) { 58119a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 58219a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 58319a0b58eSJiri Pirko } else { 5843d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 58519a0b58eSJiri Pirko } 5863d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 5873d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 5883d249d4cSJiri Pirko 5893d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 5903d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 5913d249d4cSJiri Pirko pcpu_stats->rx_packets++; 5923d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 5933d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 5943d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 5953d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko skb->dev = team->dev; 5983d249d4cSJiri Pirko } else { 5993d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 6003d249d4cSJiri Pirko } 6013d249d4cSJiri Pirko 6023d249d4cSJiri Pirko return res; 6033d249d4cSJiri Pirko } 6043d249d4cSJiri Pirko 6053d249d4cSJiri Pirko 6063d249d4cSJiri Pirko /**************** 6073d249d4cSJiri Pirko * Port handling 6083d249d4cSJiri Pirko ****************/ 6093d249d4cSJiri Pirko 6103d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 6113d249d4cSJiri Pirko const struct team_port *port) 6123d249d4cSJiri Pirko { 6133d249d4cSJiri Pirko struct team_port *cur; 6143d249d4cSJiri Pirko 6153d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 6163d249d4cSJiri Pirko if (cur == port) 6173d249d4cSJiri Pirko return true; 6183d249d4cSJiri Pirko return false; 6193d249d4cSJiri Pirko } 6203d249d4cSJiri Pirko 62119a0b58eSJiri Pirko static bool team_port_enabled(struct team_port *port) 62219a0b58eSJiri Pirko { 62319a0b58eSJiri Pirko return port->index != -1; 62419a0b58eSJiri Pirko } 62519a0b58eSJiri Pirko 6263d249d4cSJiri Pirko /* 62719a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 62819a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 62919a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 63019a0b58eSJiri Pirko * by team->lock. 6313d249d4cSJiri Pirko */ 63219a0b58eSJiri Pirko static void team_port_enable(struct team *team, 6333d249d4cSJiri Pirko struct team_port *port) 6343d249d4cSJiri Pirko { 63519a0b58eSJiri Pirko if (team_port_enabled(port)) 63619a0b58eSJiri Pirko return; 63719a0b58eSJiri Pirko port->index = team->en_port_count++; 6383d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 6393d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 6403d249d4cSJiri Pirko } 6413d249d4cSJiri Pirko 6423d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 6433d249d4cSJiri Pirko { 6443d249d4cSJiri Pirko int i; 6453d249d4cSJiri Pirko struct team_port *port; 6463d249d4cSJiri Pirko 64719a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 6483d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 6493d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 6503d249d4cSJiri Pirko port->index--; 6513d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 6523d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 6533d249d4cSJiri Pirko } 6543d249d4cSJiri Pirko } 6553d249d4cSJiri Pirko 65619a0b58eSJiri Pirko static void team_port_disable(struct team *team, 6573d249d4cSJiri Pirko struct team_port *port) 6583d249d4cSJiri Pirko { 6593d249d4cSJiri Pirko int rm_index = port->index; 6603d249d4cSJiri Pirko 66119a0b58eSJiri Pirko if (!team_port_enabled(port)) 66219a0b58eSJiri Pirko return; 6633d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 6643d249d4cSJiri Pirko __reconstruct_port_hlist(team, rm_index); 66519a0b58eSJiri Pirko team->en_port_count--; 66619a0b58eSJiri Pirko port->index = -1; 6673d249d4cSJiri Pirko } 6683d249d4cSJiri Pirko 6693d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 6703d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 6713d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 6723d249d4cSJiri Pirko 6733d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 6743d249d4cSJiri Pirko { 6753d249d4cSJiri Pirko struct team_port *port; 6763d249d4cSJiri Pirko u32 vlan_features = TEAM_VLAN_FEATURES; 6773d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 6783d249d4cSJiri Pirko 6793d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 6803d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 6813d249d4cSJiri Pirko port->dev->vlan_features, 6823d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 6833d249d4cSJiri Pirko 6843d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 6853d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 6863d249d4cSJiri Pirko } 6873d249d4cSJiri Pirko 6883d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 6893d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 6903d249d4cSJiri Pirko 6913d249d4cSJiri Pirko netdev_change_features(team->dev); 6923d249d4cSJiri Pirko } 6933d249d4cSJiri Pirko 6943d249d4cSJiri Pirko static void team_compute_features(struct team *team) 6953d249d4cSJiri Pirko { 69661dc3461SJiri Pirko mutex_lock(&team->lock); 6973d249d4cSJiri Pirko __team_compute_features(team); 69861dc3461SJiri Pirko mutex_unlock(&team->lock); 6993d249d4cSJiri Pirko } 7003d249d4cSJiri Pirko 7013d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 7023d249d4cSJiri Pirko { 7033d249d4cSJiri Pirko int err = 0; 7043d249d4cSJiri Pirko 7053d249d4cSJiri Pirko dev_hold(team->dev); 7063d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 7073d249d4cSJiri Pirko if (team->ops.port_enter) { 7083d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 7093d249d4cSJiri Pirko if (err) { 7103d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 7113d249d4cSJiri Pirko port->dev->name); 7123d249d4cSJiri Pirko goto err_port_enter; 7133d249d4cSJiri Pirko } 7143d249d4cSJiri Pirko } 7153d249d4cSJiri Pirko 7163d249d4cSJiri Pirko return 0; 7173d249d4cSJiri Pirko 7183d249d4cSJiri Pirko err_port_enter: 7193d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7203d249d4cSJiri Pirko dev_put(team->dev); 7213d249d4cSJiri Pirko 7223d249d4cSJiri Pirko return err; 7233d249d4cSJiri Pirko } 7243d249d4cSJiri Pirko 7253d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 7263d249d4cSJiri Pirko { 7273d249d4cSJiri Pirko if (team->ops.port_leave) 7283d249d4cSJiri Pirko team->ops.port_leave(team, port); 7293d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7303d249d4cSJiri Pirko dev_put(team->dev); 7313d249d4cSJiri Pirko } 7323d249d4cSJiri Pirko 7333d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup); 7343d249d4cSJiri Pirko 7353d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 7363d249d4cSJiri Pirko { 7373d249d4cSJiri Pirko struct net_device *dev = team->dev; 7383d249d4cSJiri Pirko struct team_port *port; 7393d249d4cSJiri Pirko char *portname = port_dev->name; 7403d249d4cSJiri Pirko int err; 7413d249d4cSJiri Pirko 7423d249d4cSJiri Pirko if (port_dev->flags & IFF_LOOPBACK || 7433d249d4cSJiri Pirko port_dev->type != ARPHRD_ETHER) { 7443d249d4cSJiri Pirko netdev_err(dev, "Device %s is of an unsupported type\n", 7453d249d4cSJiri Pirko portname); 7463d249d4cSJiri Pirko return -EINVAL; 7473d249d4cSJiri Pirko } 7483d249d4cSJiri Pirko 7493d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 7503d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 7513d249d4cSJiri Pirko "of a team device\n", portname); 7523d249d4cSJiri Pirko return -EBUSY; 7533d249d4cSJiri Pirko } 7543d249d4cSJiri Pirko 7553d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 7563d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 7573d249d4cSJiri Pirko portname); 7583d249d4cSJiri Pirko return -EBUSY; 7593d249d4cSJiri Pirko } 7603d249d4cSJiri Pirko 7613d249d4cSJiri Pirko port = kzalloc(sizeof(struct team_port), GFP_KERNEL); 7623d249d4cSJiri Pirko if (!port) 7633d249d4cSJiri Pirko return -ENOMEM; 7643d249d4cSJiri Pirko 7653d249d4cSJiri Pirko port->dev = port_dev; 7663d249d4cSJiri Pirko port->team = team; 7673d249d4cSJiri Pirko 7683d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 7693d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 7703d249d4cSJiri Pirko if (err) { 7713d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 7723d249d4cSJiri Pirko goto err_set_mtu; 7733d249d4cSJiri Pirko } 7743d249d4cSJiri Pirko 7753d249d4cSJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN); 7763d249d4cSJiri Pirko 7773d249d4cSJiri Pirko err = team_port_enter(team, port); 7783d249d4cSJiri Pirko if (err) { 7793d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 7803d249d4cSJiri Pirko portname); 7813d249d4cSJiri Pirko goto err_port_enter; 7823d249d4cSJiri Pirko } 7833d249d4cSJiri Pirko 7843d249d4cSJiri Pirko err = dev_open(port_dev); 7853d249d4cSJiri Pirko if (err) { 7863d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 7873d249d4cSJiri Pirko portname); 7883d249d4cSJiri Pirko goto err_dev_open; 7893d249d4cSJiri Pirko } 7903d249d4cSJiri Pirko 79157459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 79257459185SJiri Pirko if (err) { 79357459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 79457459185SJiri Pirko portname); 79557459185SJiri Pirko goto err_vids_add; 79657459185SJiri Pirko } 79757459185SJiri Pirko 7983d249d4cSJiri Pirko err = netdev_set_master(port_dev, dev); 7993d249d4cSJiri Pirko if (err) { 8003d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to set master\n", portname); 8013d249d4cSJiri Pirko goto err_set_master; 8023d249d4cSJiri Pirko } 8033d249d4cSJiri Pirko 8043d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 8053d249d4cSJiri Pirko port); 8063d249d4cSJiri Pirko if (err) { 8073d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 8083d249d4cSJiri Pirko portname); 8093d249d4cSJiri Pirko goto err_handler_register; 8103d249d4cSJiri Pirko } 8113d249d4cSJiri Pirko 81280f7c668SJiri Pirko err = team_option_port_add(team, port); 81380f7c668SJiri Pirko if (err) { 81480f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 81580f7c668SJiri Pirko portname); 81680f7c668SJiri Pirko goto err_option_port_add; 81780f7c668SJiri Pirko } 81880f7c668SJiri Pirko 81919a0b58eSJiri Pirko port->index = -1; 82019a0b58eSJiri Pirko team_port_enable(team, port); 82119a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 8223d249d4cSJiri Pirko team_adjust_ops(team); 8233d249d4cSJiri Pirko __team_compute_features(team); 8243d249d4cSJiri Pirko __team_port_change_check(port, !!netif_carrier_ok(port_dev)); 8253d249d4cSJiri Pirko 8263d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 8273d249d4cSJiri Pirko 8283d249d4cSJiri Pirko return 0; 8293d249d4cSJiri Pirko 83080f7c668SJiri Pirko err_option_port_add: 83180f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 83280f7c668SJiri Pirko 8333d249d4cSJiri Pirko err_handler_register: 8343d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 8353d249d4cSJiri Pirko 8363d249d4cSJiri Pirko err_set_master: 83757459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 83857459185SJiri Pirko 83957459185SJiri Pirko err_vids_add: 8403d249d4cSJiri Pirko dev_close(port_dev); 8413d249d4cSJiri Pirko 8423d249d4cSJiri Pirko err_dev_open: 8433d249d4cSJiri Pirko team_port_leave(team, port); 8443d249d4cSJiri Pirko team_port_set_orig_mac(port); 8453d249d4cSJiri Pirko 8463d249d4cSJiri Pirko err_port_enter: 8473d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 8483d249d4cSJiri Pirko 8493d249d4cSJiri Pirko err_set_mtu: 8503d249d4cSJiri Pirko kfree(port); 8513d249d4cSJiri Pirko 8523d249d4cSJiri Pirko return err; 8533d249d4cSJiri Pirko } 8543d249d4cSJiri Pirko 8553d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 8563d249d4cSJiri Pirko { 8573d249d4cSJiri Pirko struct net_device *dev = team->dev; 8583d249d4cSJiri Pirko struct team_port *port; 8593d249d4cSJiri Pirko char *portname = port_dev->name; 8603d249d4cSJiri Pirko 8613d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 8623d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 8633d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 8643d249d4cSJiri Pirko portname); 8653d249d4cSJiri Pirko return -ENOENT; 8663d249d4cSJiri Pirko } 8673d249d4cSJiri Pirko 868b82b9183SJiri Pirko port->removed = true; 8693d249d4cSJiri Pirko __team_port_change_check(port, false); 87019a0b58eSJiri Pirko team_port_disable(team, port); 87119a0b58eSJiri Pirko list_del_rcu(&port->list); 8723d249d4cSJiri Pirko team_adjust_ops(team); 87380f7c668SJiri Pirko team_option_port_del(team, port); 8743d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 8753d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 87657459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 8773d249d4cSJiri Pirko dev_close(port_dev); 8783d249d4cSJiri Pirko team_port_leave(team, port); 8793d249d4cSJiri Pirko team_port_set_orig_mac(port); 8803d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 8813d249d4cSJiri Pirko synchronize_rcu(); 8823d249d4cSJiri Pirko kfree(port); 8833d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 8843d249d4cSJiri Pirko __team_compute_features(team); 8853d249d4cSJiri Pirko 8863d249d4cSJiri Pirko return 0; 8873d249d4cSJiri Pirko } 8883d249d4cSJiri Pirko 8893d249d4cSJiri Pirko 8903d249d4cSJiri Pirko /***************** 8913d249d4cSJiri Pirko * Net device ops 8923d249d4cSJiri Pirko *****************/ 8933d249d4cSJiri Pirko 8943d249d4cSJiri Pirko static const char team_no_mode_kind[] = "*NOMODE*"; 8953d249d4cSJiri Pirko 89680f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 8973d249d4cSJiri Pirko { 89880f7c668SJiri Pirko ctx->data.str_val = team->mode ? team->mode->kind : team_no_mode_kind; 8993d249d4cSJiri Pirko return 0; 9003d249d4cSJiri Pirko } 9013d249d4cSJiri Pirko 90280f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 9033d249d4cSJiri Pirko { 90480f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 9053d249d4cSJiri Pirko } 9063d249d4cSJiri Pirko 907acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 908acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 909acd69962SJiri Pirko { 910acd69962SJiri Pirko ctx->data.bool_val = team_port_enabled(ctx->port); 911acd69962SJiri Pirko return 0; 912acd69962SJiri Pirko } 913acd69962SJiri Pirko 914acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 915acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 916acd69962SJiri Pirko { 917acd69962SJiri Pirko if (ctx->data.bool_val) 918acd69962SJiri Pirko team_port_enable(team, ctx->port); 919acd69962SJiri Pirko else 920acd69962SJiri Pirko team_port_disable(team, ctx->port); 921acd69962SJiri Pirko return 0; 922acd69962SJiri Pirko } 923acd69962SJiri Pirko 92471472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 92571472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 92671472ec1SJiri Pirko { 92771472ec1SJiri Pirko ctx->data.bool_val = ctx->port->user.linkup; 92871472ec1SJiri Pirko return 0; 92971472ec1SJiri Pirko } 93071472ec1SJiri Pirko 93171472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 93271472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 93371472ec1SJiri Pirko { 93471472ec1SJiri Pirko ctx->port->user.linkup = ctx->data.bool_val; 93571472ec1SJiri Pirko team_refresh_port_linkup(ctx->port); 93671472ec1SJiri Pirko return 0; 93771472ec1SJiri Pirko } 93871472ec1SJiri Pirko 93971472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 94071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 94171472ec1SJiri Pirko { 94271472ec1SJiri Pirko struct team_port *port = ctx->port; 94371472ec1SJiri Pirko 94471472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 94571472ec1SJiri Pirko return 0; 94671472ec1SJiri Pirko } 94771472ec1SJiri Pirko 94871472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 94971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 95071472ec1SJiri Pirko { 95171472ec1SJiri Pirko struct team_port *port = ctx->port; 95271472ec1SJiri Pirko 95371472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 95471472ec1SJiri Pirko team_refresh_port_linkup(ctx->port); 95571472ec1SJiri Pirko return 0; 95671472ec1SJiri Pirko } 95771472ec1SJiri Pirko 958358b8382SJiri Pirko static const struct team_option team_options[] = { 9593d249d4cSJiri Pirko { 9603d249d4cSJiri Pirko .name = "mode", 9613d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 9623d249d4cSJiri Pirko .getter = team_mode_option_get, 9633d249d4cSJiri Pirko .setter = team_mode_option_set, 9643d249d4cSJiri Pirko }, 96571472ec1SJiri Pirko { 966acd69962SJiri Pirko .name = "enabled", 967acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 968acd69962SJiri Pirko .per_port = true, 969acd69962SJiri Pirko .getter = team_port_en_option_get, 970acd69962SJiri Pirko .setter = team_port_en_option_set, 971acd69962SJiri Pirko }, 972acd69962SJiri Pirko { 97371472ec1SJiri Pirko .name = "user_linkup", 97471472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 97571472ec1SJiri Pirko .per_port = true, 97671472ec1SJiri Pirko .getter = team_user_linkup_option_get, 97771472ec1SJiri Pirko .setter = team_user_linkup_option_set, 97871472ec1SJiri Pirko }, 97971472ec1SJiri Pirko { 98071472ec1SJiri Pirko .name = "user_linkup_enabled", 98171472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 98271472ec1SJiri Pirko .per_port = true, 98371472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 98471472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 98571472ec1SJiri Pirko }, 9863d249d4cSJiri Pirko }; 9873d249d4cSJiri Pirko 9883d249d4cSJiri Pirko static int team_init(struct net_device *dev) 9893d249d4cSJiri Pirko { 9903d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 9913d249d4cSJiri Pirko int i; 992358b8382SJiri Pirko int err; 9933d249d4cSJiri Pirko 9943d249d4cSJiri Pirko team->dev = dev; 99561dc3461SJiri Pirko mutex_init(&team->lock); 9963d249d4cSJiri Pirko 9973d249d4cSJiri Pirko team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); 9983d249d4cSJiri Pirko if (!team->pcpu_stats) 9993d249d4cSJiri Pirko return -ENOMEM; 10003d249d4cSJiri Pirko 10013d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 100219a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 10033d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 10043d249d4cSJiri Pirko 10053d249d4cSJiri Pirko team_adjust_ops(team); 10063d249d4cSJiri Pirko 10073d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 100880f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1009358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1010358b8382SJiri Pirko if (err) 1011358b8382SJiri Pirko goto err_options_register; 10123d249d4cSJiri Pirko netif_carrier_off(dev); 10133d249d4cSJiri Pirko 10143d249d4cSJiri Pirko return 0; 1015358b8382SJiri Pirko 1016358b8382SJiri Pirko err_options_register: 1017358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1018358b8382SJiri Pirko 1019358b8382SJiri Pirko return err; 10203d249d4cSJiri Pirko } 10213d249d4cSJiri Pirko 10223d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 10233d249d4cSJiri Pirko { 10243d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10253d249d4cSJiri Pirko struct team_port *port; 10263d249d4cSJiri Pirko struct team_port *tmp; 10273d249d4cSJiri Pirko 102861dc3461SJiri Pirko mutex_lock(&team->lock); 10293d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 10303d249d4cSJiri Pirko team_port_del(team, port->dev); 10313d249d4cSJiri Pirko 10323d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 10333d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 103461dc3461SJiri Pirko mutex_unlock(&team->lock); 10353d249d4cSJiri Pirko } 10363d249d4cSJiri Pirko 10373d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 10383d249d4cSJiri Pirko { 10393d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10403d249d4cSJiri Pirko 10413d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 10423d249d4cSJiri Pirko free_netdev(dev); 10433d249d4cSJiri Pirko } 10443d249d4cSJiri Pirko 10453d249d4cSJiri Pirko static int team_open(struct net_device *dev) 10463d249d4cSJiri Pirko { 10473d249d4cSJiri Pirko netif_carrier_on(dev); 10483d249d4cSJiri Pirko return 0; 10493d249d4cSJiri Pirko } 10503d249d4cSJiri Pirko 10513d249d4cSJiri Pirko static int team_close(struct net_device *dev) 10523d249d4cSJiri Pirko { 10533d249d4cSJiri Pirko netif_carrier_off(dev); 10543d249d4cSJiri Pirko return 0; 10553d249d4cSJiri Pirko } 10563d249d4cSJiri Pirko 10573d249d4cSJiri Pirko /* 10583d249d4cSJiri Pirko * note: already called with rcu_read_lock 10593d249d4cSJiri Pirko */ 10603d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 10613d249d4cSJiri Pirko { 10623d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10633d249d4cSJiri Pirko bool tx_success = false; 10643d249d4cSJiri Pirko unsigned int len = skb->len; 10653d249d4cSJiri Pirko 10663d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 10673d249d4cSJiri Pirko if (tx_success) { 10683d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 10693d249d4cSJiri Pirko 10703d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 10713d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 10723d249d4cSJiri Pirko pcpu_stats->tx_packets++; 10733d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 10743d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 10753d249d4cSJiri Pirko } else { 10763d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 10773d249d4cSJiri Pirko } 10783d249d4cSJiri Pirko 10793d249d4cSJiri Pirko return NETDEV_TX_OK; 10803d249d4cSJiri Pirko } 10813d249d4cSJiri Pirko 10823d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 10833d249d4cSJiri Pirko { 10843d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10853d249d4cSJiri Pirko struct team_port *port; 10863d249d4cSJiri Pirko int inc; 10873d249d4cSJiri Pirko 10883d249d4cSJiri Pirko rcu_read_lock(); 10893d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 10903d249d4cSJiri Pirko if (change & IFF_PROMISC) { 10913d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 10923d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 10933d249d4cSJiri Pirko } 10943d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 10953d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 10963d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 10973d249d4cSJiri Pirko } 10983d249d4cSJiri Pirko } 10993d249d4cSJiri Pirko rcu_read_unlock(); 11003d249d4cSJiri Pirko } 11013d249d4cSJiri Pirko 11023d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 11033d249d4cSJiri Pirko { 11043d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11053d249d4cSJiri Pirko struct team_port *port; 11063d249d4cSJiri Pirko 11073d249d4cSJiri Pirko rcu_read_lock(); 11083d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 11093d249d4cSJiri Pirko dev_uc_sync(port->dev, dev); 11103d249d4cSJiri Pirko dev_mc_sync(port->dev, dev); 11113d249d4cSJiri Pirko } 11123d249d4cSJiri Pirko rcu_read_unlock(); 11133d249d4cSJiri Pirko } 11143d249d4cSJiri Pirko 11153d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 11163d249d4cSJiri Pirko { 11173d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11183d249d4cSJiri Pirko struct team_port *port; 11193d249d4cSJiri Pirko struct sockaddr *addr = p; 11203d249d4cSJiri Pirko 11217ce5d222SDanny Kukawka dev->addr_assign_type &= ~NET_ADDR_RANDOM; 11223d249d4cSJiri Pirko memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 11233d249d4cSJiri Pirko rcu_read_lock(); 11243d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 11253d249d4cSJiri Pirko if (team->ops.port_change_mac) 11263d249d4cSJiri Pirko team->ops.port_change_mac(team, port); 11273d249d4cSJiri Pirko rcu_read_unlock(); 11283d249d4cSJiri Pirko return 0; 11293d249d4cSJiri Pirko } 11303d249d4cSJiri Pirko 11313d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 11323d249d4cSJiri Pirko { 11333d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11343d249d4cSJiri Pirko struct team_port *port; 11353d249d4cSJiri Pirko int err; 11363d249d4cSJiri Pirko 11373d249d4cSJiri Pirko /* 11383d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 11393d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 11403d249d4cSJiri Pirko */ 114161dc3461SJiri Pirko mutex_lock(&team->lock); 11423d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 11433d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 11443d249d4cSJiri Pirko if (err) { 11453d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 11463d249d4cSJiri Pirko port->dev->name); 11473d249d4cSJiri Pirko goto unwind; 11483d249d4cSJiri Pirko } 11493d249d4cSJiri Pirko } 115061dc3461SJiri Pirko mutex_unlock(&team->lock); 11513d249d4cSJiri Pirko 11523d249d4cSJiri Pirko dev->mtu = new_mtu; 11533d249d4cSJiri Pirko 11543d249d4cSJiri Pirko return 0; 11553d249d4cSJiri Pirko 11563d249d4cSJiri Pirko unwind: 11573d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 11583d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 115961dc3461SJiri Pirko mutex_unlock(&team->lock); 11603d249d4cSJiri Pirko 11613d249d4cSJiri Pirko return err; 11623d249d4cSJiri Pirko } 11633d249d4cSJiri Pirko 11643d249d4cSJiri Pirko static struct rtnl_link_stats64 * 11653d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 11663d249d4cSJiri Pirko { 11673d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11683d249d4cSJiri Pirko struct team_pcpu_stats *p; 11693d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 11703d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 11713d249d4cSJiri Pirko unsigned int start; 11723d249d4cSJiri Pirko int i; 11733d249d4cSJiri Pirko 11743d249d4cSJiri Pirko for_each_possible_cpu(i) { 11753d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 11763d249d4cSJiri Pirko do { 11773d249d4cSJiri Pirko start = u64_stats_fetch_begin_bh(&p->syncp); 11783d249d4cSJiri Pirko rx_packets = p->rx_packets; 11793d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 11803d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 11813d249d4cSJiri Pirko tx_packets = p->tx_packets; 11823d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 11833d249d4cSJiri Pirko } while (u64_stats_fetch_retry_bh(&p->syncp, start)); 11843d249d4cSJiri Pirko 11853d249d4cSJiri Pirko stats->rx_packets += rx_packets; 11863d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 11873d249d4cSJiri Pirko stats->multicast += rx_multicast; 11883d249d4cSJiri Pirko stats->tx_packets += tx_packets; 11893d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 11903d249d4cSJiri Pirko /* 11913d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 11923d249d4cSJiri Pirko * without syncp protection. 11933d249d4cSJiri Pirko */ 11943d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 11953d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 11963d249d4cSJiri Pirko } 11973d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 11983d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 11993d249d4cSJiri Pirko return stats; 12003d249d4cSJiri Pirko } 12013d249d4cSJiri Pirko 12028e586137SJiri Pirko static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) 12033d249d4cSJiri Pirko { 12043d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12053d249d4cSJiri Pirko struct team_port *port; 120687002b03SJiri Pirko int err; 12073d249d4cSJiri Pirko 120887002b03SJiri Pirko /* 120987002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 121087002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 121187002b03SJiri Pirko */ 121287002b03SJiri Pirko mutex_lock(&team->lock); 121387002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 121487002b03SJiri Pirko err = vlan_vid_add(port->dev, vid); 121587002b03SJiri Pirko if (err) 121687002b03SJiri Pirko goto unwind; 12173d249d4cSJiri Pirko } 121887002b03SJiri Pirko mutex_unlock(&team->lock); 12198e586137SJiri Pirko 12208e586137SJiri Pirko return 0; 122187002b03SJiri Pirko 122287002b03SJiri Pirko unwind: 122387002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 122487002b03SJiri Pirko vlan_vid_del(port->dev, vid); 122587002b03SJiri Pirko mutex_unlock(&team->lock); 122687002b03SJiri Pirko 122787002b03SJiri Pirko return err; 12283d249d4cSJiri Pirko } 12293d249d4cSJiri Pirko 12308e586137SJiri Pirko static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) 12313d249d4cSJiri Pirko { 12323d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12333d249d4cSJiri Pirko struct team_port *port; 12343d249d4cSJiri Pirko 12353d249d4cSJiri Pirko rcu_read_lock(); 123687002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 123787002b03SJiri Pirko vlan_vid_del(port->dev, vid); 12383d249d4cSJiri Pirko rcu_read_unlock(); 12398e586137SJiri Pirko 12408e586137SJiri Pirko return 0; 12413d249d4cSJiri Pirko } 12423d249d4cSJiri Pirko 12433d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 12443d249d4cSJiri Pirko { 12453d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12463d249d4cSJiri Pirko int err; 12473d249d4cSJiri Pirko 124861dc3461SJiri Pirko mutex_lock(&team->lock); 12493d249d4cSJiri Pirko err = team_port_add(team, port_dev); 125061dc3461SJiri Pirko mutex_unlock(&team->lock); 12513d249d4cSJiri Pirko return err; 12523d249d4cSJiri Pirko } 12533d249d4cSJiri Pirko 12543d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 12553d249d4cSJiri Pirko { 12563d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12573d249d4cSJiri Pirko int err; 12583d249d4cSJiri Pirko 125961dc3461SJiri Pirko mutex_lock(&team->lock); 12603d249d4cSJiri Pirko err = team_port_del(team, port_dev); 126161dc3461SJiri Pirko mutex_unlock(&team->lock); 12623d249d4cSJiri Pirko return err; 12633d249d4cSJiri Pirko } 12643d249d4cSJiri Pirko 1265234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1266234a8fd4SJiri Pirko netdev_features_t features) 1267234a8fd4SJiri Pirko { 1268234a8fd4SJiri Pirko struct team_port *port; 1269234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1270234a8fd4SJiri Pirko netdev_features_t mask; 1271234a8fd4SJiri Pirko 1272234a8fd4SJiri Pirko mask = features; 1273234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1274234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1275234a8fd4SJiri Pirko 1276234a8fd4SJiri Pirko rcu_read_lock(); 1277234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1278234a8fd4SJiri Pirko features = netdev_increment_features(features, 1279234a8fd4SJiri Pirko port->dev->features, 1280234a8fd4SJiri Pirko mask); 1281234a8fd4SJiri Pirko } 1282234a8fd4SJiri Pirko rcu_read_unlock(); 1283234a8fd4SJiri Pirko return features; 1284234a8fd4SJiri Pirko } 1285234a8fd4SJiri Pirko 12863d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 12873d249d4cSJiri Pirko .ndo_init = team_init, 12883d249d4cSJiri Pirko .ndo_uninit = team_uninit, 12893d249d4cSJiri Pirko .ndo_open = team_open, 12903d249d4cSJiri Pirko .ndo_stop = team_close, 12913d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 12923d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 12933d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 12943d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 12953d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 12963d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 12973d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 12983d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 12993d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 13003d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1301234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 13023d249d4cSJiri Pirko }; 13033d249d4cSJiri Pirko 13043d249d4cSJiri Pirko 13053d249d4cSJiri Pirko /*********************** 13063d249d4cSJiri Pirko * rt netlink interface 13073d249d4cSJiri Pirko ***********************/ 13083d249d4cSJiri Pirko 13093d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 13103d249d4cSJiri Pirko { 13113d249d4cSJiri Pirko ether_setup(dev); 13123d249d4cSJiri Pirko 13133d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 13143d249d4cSJiri Pirko dev->destructor = team_destructor; 13153d249d4cSJiri Pirko dev->tx_queue_len = 0; 13163d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 13173d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 13183d249d4cSJiri Pirko 13193d249d4cSJiri Pirko /* 13203d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 13213d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 13223d249d4cSJiri Pirko * Let this up to underlay drivers. 13233d249d4cSJiri Pirko */ 13243d249d4cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT; 13253d249d4cSJiri Pirko 13263d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 13273d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 13283d249d4cSJiri Pirko dev->hw_features = NETIF_F_HW_VLAN_TX | 13293d249d4cSJiri Pirko NETIF_F_HW_VLAN_RX | 13303d249d4cSJiri Pirko NETIF_F_HW_VLAN_FILTER; 13313d249d4cSJiri Pirko 13323d249d4cSJiri Pirko dev->features |= dev->hw_features; 13333d249d4cSJiri Pirko } 13343d249d4cSJiri Pirko 13353d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 13363d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 13373d249d4cSJiri Pirko { 13383d249d4cSJiri Pirko int err; 13393d249d4cSJiri Pirko 13403d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 13417ce5d222SDanny Kukawka eth_hw_addr_random(dev); 13423d249d4cSJiri Pirko 13433d249d4cSJiri Pirko err = register_netdevice(dev); 13443d249d4cSJiri Pirko if (err) 13453d249d4cSJiri Pirko return err; 13463d249d4cSJiri Pirko 13473d249d4cSJiri Pirko return 0; 13483d249d4cSJiri Pirko } 13493d249d4cSJiri Pirko 13503d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 13513d249d4cSJiri Pirko { 13523d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 13533d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 13543d249d4cSJiri Pirko return -EINVAL; 13553d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 13563d249d4cSJiri Pirko return -EADDRNOTAVAIL; 13573d249d4cSJiri Pirko } 13583d249d4cSJiri Pirko return 0; 13593d249d4cSJiri Pirko } 13603d249d4cSJiri Pirko 13613d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 13623d249d4cSJiri Pirko .kind = DRV_NAME, 13633d249d4cSJiri Pirko .priv_size = sizeof(struct team), 13643d249d4cSJiri Pirko .setup = team_setup, 13653d249d4cSJiri Pirko .newlink = team_newlink, 13663d249d4cSJiri Pirko .validate = team_validate, 13673d249d4cSJiri Pirko }; 13683d249d4cSJiri Pirko 13693d249d4cSJiri Pirko 13703d249d4cSJiri Pirko /*********************************** 13713d249d4cSJiri Pirko * Generic netlink custom interface 13723d249d4cSJiri Pirko ***********************************/ 13733d249d4cSJiri Pirko 13743d249d4cSJiri Pirko static struct genl_family team_nl_family = { 13753d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 13763d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 13773d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 13783d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 13793d249d4cSJiri Pirko .netnsok = true, 13803d249d4cSJiri Pirko }; 13813d249d4cSJiri Pirko 13823d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 13833d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 13843d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 13853d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 13863d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 13873d249d4cSJiri Pirko }; 13883d249d4cSJiri Pirko 13893d249d4cSJiri Pirko static const struct nla_policy 13903d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 13913d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 13923d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 13933d249d4cSJiri Pirko .type = NLA_STRING, 13943d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 13953d249d4cSJiri Pirko }, 13963d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 13973d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 13982615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 13993d249d4cSJiri Pirko }; 14003d249d4cSJiri Pirko 14013d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 14023d249d4cSJiri Pirko { 14033d249d4cSJiri Pirko struct sk_buff *msg; 14043d249d4cSJiri Pirko void *hdr; 14053d249d4cSJiri Pirko int err; 14063d249d4cSJiri Pirko 14073d249d4cSJiri Pirko msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 14083d249d4cSJiri Pirko if (!msg) 14093d249d4cSJiri Pirko return -ENOMEM; 14103d249d4cSJiri Pirko 14113d249d4cSJiri Pirko hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, 14123d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 14133d249d4cSJiri Pirko if (IS_ERR(hdr)) { 14143d249d4cSJiri Pirko err = PTR_ERR(hdr); 14153d249d4cSJiri Pirko goto err_msg_put; 14163d249d4cSJiri Pirko } 14173d249d4cSJiri Pirko 14183d249d4cSJiri Pirko genlmsg_end(msg, hdr); 14193d249d4cSJiri Pirko 14203d249d4cSJiri Pirko return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); 14213d249d4cSJiri Pirko 14223d249d4cSJiri Pirko err_msg_put: 14233d249d4cSJiri Pirko nlmsg_free(msg); 14243d249d4cSJiri Pirko 14253d249d4cSJiri Pirko return err; 14263d249d4cSJiri Pirko } 14273d249d4cSJiri Pirko 14283d249d4cSJiri Pirko /* 14293d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 14308c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 14313d249d4cSJiri Pirko */ 14323d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 14333d249d4cSJiri Pirko { 14343d249d4cSJiri Pirko struct net *net = genl_info_net(info); 14353d249d4cSJiri Pirko int ifindex; 14363d249d4cSJiri Pirko struct net_device *dev; 14373d249d4cSJiri Pirko struct team *team; 14383d249d4cSJiri Pirko 14393d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 14403d249d4cSJiri Pirko return NULL; 14413d249d4cSJiri Pirko 14423d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 14438c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 14443d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 14458c0713a5SJiri Pirko if (dev) 14468c0713a5SJiri Pirko dev_put(dev); 14473d249d4cSJiri Pirko return NULL; 14483d249d4cSJiri Pirko } 14493d249d4cSJiri Pirko 14503d249d4cSJiri Pirko team = netdev_priv(dev); 145161dc3461SJiri Pirko mutex_lock(&team->lock); 14523d249d4cSJiri Pirko return team; 14533d249d4cSJiri Pirko } 14543d249d4cSJiri Pirko 14553d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 14563d249d4cSJiri Pirko { 145761dc3461SJiri Pirko mutex_unlock(&team->lock); 14588c0713a5SJiri Pirko dev_put(team->dev); 14593d249d4cSJiri Pirko } 14603d249d4cSJiri Pirko 14613d249d4cSJiri Pirko static int team_nl_send_generic(struct genl_info *info, struct team *team, 14623d249d4cSJiri Pirko int (*fill_func)(struct sk_buff *skb, 14633d249d4cSJiri Pirko struct genl_info *info, 14643d249d4cSJiri Pirko int flags, struct team *team)) 14653d249d4cSJiri Pirko { 14663d249d4cSJiri Pirko struct sk_buff *skb; 14673d249d4cSJiri Pirko int err; 14683d249d4cSJiri Pirko 14693d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 14703d249d4cSJiri Pirko if (!skb) 14713d249d4cSJiri Pirko return -ENOMEM; 14723d249d4cSJiri Pirko 14733d249d4cSJiri Pirko err = fill_func(skb, info, NLM_F_ACK, team); 14743d249d4cSJiri Pirko if (err < 0) 14753d249d4cSJiri Pirko goto err_fill; 14763d249d4cSJiri Pirko 14773d249d4cSJiri Pirko err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); 14783d249d4cSJiri Pirko return err; 14793d249d4cSJiri Pirko 14803d249d4cSJiri Pirko err_fill: 14813d249d4cSJiri Pirko nlmsg_free(skb); 14823d249d4cSJiri Pirko return err; 14833d249d4cSJiri Pirko } 14843d249d4cSJiri Pirko 1485b82b9183SJiri Pirko static int team_nl_fill_options_get(struct sk_buff *skb, 14863d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 1487b82b9183SJiri Pirko struct team *team, bool fillall) 14883d249d4cSJiri Pirko { 14893d249d4cSJiri Pirko struct nlattr *option_list; 14903d249d4cSJiri Pirko void *hdr; 149180f7c668SJiri Pirko struct team_option_inst *opt_inst; 149280f7c668SJiri Pirko int err; 14933d249d4cSJiri Pirko 14943d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 14953d249d4cSJiri Pirko TEAM_CMD_OPTIONS_GET); 14963d249d4cSJiri Pirko if (IS_ERR(hdr)) 14973d249d4cSJiri Pirko return PTR_ERR(hdr); 14983d249d4cSJiri Pirko 149986ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 150086ebb02dSDavid S. Miller goto nla_put_failure; 15013d249d4cSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 15023d249d4cSJiri Pirko if (!option_list) 15033d249d4cSJiri Pirko return -EMSGSIZE; 15043d249d4cSJiri Pirko 150580f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 15063d249d4cSJiri Pirko struct nlattr *option_item; 150780f7c668SJiri Pirko struct team_option *option = opt_inst->option; 150880f7c668SJiri Pirko struct team_gsetter_ctx ctx; 15093d249d4cSJiri Pirko 1510b82b9183SJiri Pirko /* Include only changed options if fill all mode is not on */ 151180f7c668SJiri Pirko if (!fillall && !opt_inst->changed) 1512b82b9183SJiri Pirko continue; 15133d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 15143d249d4cSJiri Pirko if (!option_item) 15153d249d4cSJiri Pirko goto nla_put_failure; 151686ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 151786ebb02dSDavid S. Miller goto nla_put_failure; 151880f7c668SJiri Pirko if (opt_inst->changed) { 151986ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 152086ebb02dSDavid S. Miller goto nla_put_failure; 152180f7c668SJiri Pirko opt_inst->changed = false; 1522b82b9183SJiri Pirko } 152380f7c668SJiri Pirko if (opt_inst->removed && 152486ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 152586ebb02dSDavid S. Miller goto nla_put_failure; 152680f7c668SJiri Pirko if (opt_inst->port && 152780f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 152880f7c668SJiri Pirko opt_inst->port->dev->ifindex)) 152980f7c668SJiri Pirko goto nla_put_failure; 153080f7c668SJiri Pirko ctx.port = opt_inst->port; 15313d249d4cSJiri Pirko switch (option->type) { 15323d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 153386ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 153486ebb02dSDavid S. Miller goto nla_put_failure; 153580f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 153680f7c668SJiri Pirko if (err) 153780f7c668SJiri Pirko goto errout; 153880f7c668SJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, 153980f7c668SJiri Pirko ctx.data.u32_val)) 154086ebb02dSDavid S. Miller goto nla_put_failure; 15413d249d4cSJiri Pirko break; 15423d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 154386ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 154486ebb02dSDavid S. Miller goto nla_put_failure; 154580f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 154680f7c668SJiri Pirko if (err) 154780f7c668SJiri Pirko goto errout; 154886ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 154980f7c668SJiri Pirko ctx.data.str_val)) 155086ebb02dSDavid S. Miller goto nla_put_failure; 15513d249d4cSJiri Pirko break; 15522615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 15532615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 15542615598fSJiri Pirko goto nla_put_failure; 155580f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 155680f7c668SJiri Pirko if (err) 155780f7c668SJiri Pirko goto errout; 15582615598fSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, 155980f7c668SJiri Pirko ctx.data.bin_val.len, ctx.data.bin_val.ptr)) 15602615598fSJiri Pirko goto nla_put_failure; 15612615598fSJiri Pirko break; 156214f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 156314f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 156414f066baSJiri Pirko goto nla_put_failure; 156514f066baSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 156614f066baSJiri Pirko if (err) 156714f066baSJiri Pirko goto errout; 156814f066baSJiri Pirko if (ctx.data.bool_val && 156914f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 157014f066baSJiri Pirko goto nla_put_failure; 157114f066baSJiri Pirko break; 15723d249d4cSJiri Pirko default: 15733d249d4cSJiri Pirko BUG(); 15743d249d4cSJiri Pirko } 15753d249d4cSJiri Pirko nla_nest_end(skb, option_item); 15763d249d4cSJiri Pirko } 15773d249d4cSJiri Pirko 15783d249d4cSJiri Pirko nla_nest_end(skb, option_list); 15793d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 15803d249d4cSJiri Pirko 15813d249d4cSJiri Pirko nla_put_failure: 158280f7c668SJiri Pirko err = -EMSGSIZE; 158380f7c668SJiri Pirko errout: 15843d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 158580f7c668SJiri Pirko return err; 15863d249d4cSJiri Pirko } 15873d249d4cSJiri Pirko 1588b82b9183SJiri Pirko static int team_nl_fill_options_get_all(struct sk_buff *skb, 15893d249d4cSJiri Pirko struct genl_info *info, int flags, 15903d249d4cSJiri Pirko struct team *team) 15913d249d4cSJiri Pirko { 1592b82b9183SJiri Pirko return team_nl_fill_options_get(skb, info->snd_pid, 15933d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 1594b82b9183SJiri Pirko team, true); 15953d249d4cSJiri Pirko } 15963d249d4cSJiri Pirko 15973d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 15983d249d4cSJiri Pirko { 15993d249d4cSJiri Pirko struct team *team; 16003d249d4cSJiri Pirko int err; 16013d249d4cSJiri Pirko 16023d249d4cSJiri Pirko team = team_nl_team_get(info); 16033d249d4cSJiri Pirko if (!team) 16043d249d4cSJiri Pirko return -EINVAL; 16053d249d4cSJiri Pirko 1606b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_options_get_all); 16073d249d4cSJiri Pirko 16083d249d4cSJiri Pirko team_nl_team_put(team); 16093d249d4cSJiri Pirko 16103d249d4cSJiri Pirko return err; 16113d249d4cSJiri Pirko } 16123d249d4cSJiri Pirko 16133d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 16143d249d4cSJiri Pirko { 16153d249d4cSJiri Pirko struct team *team; 16163d249d4cSJiri Pirko int err = 0; 16173d249d4cSJiri Pirko int i; 16183d249d4cSJiri Pirko struct nlattr *nl_option; 16193d249d4cSJiri Pirko 16203d249d4cSJiri Pirko team = team_nl_team_get(info); 16213d249d4cSJiri Pirko if (!team) 16223d249d4cSJiri Pirko return -EINVAL; 16233d249d4cSJiri Pirko 16243d249d4cSJiri Pirko err = -EINVAL; 16253d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 16263d249d4cSJiri Pirko err = -EINVAL; 16273d249d4cSJiri Pirko goto team_put; 16283d249d4cSJiri Pirko } 16293d249d4cSJiri Pirko 16303d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 163180f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 163280f7c668SJiri Pirko struct nlattr *attr_port_ifindex; 163314f066baSJiri Pirko struct nlattr *attr_data; 16343d249d4cSJiri Pirko enum team_option_type opt_type; 163580f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 163680f7c668SJiri Pirko struct team_option_inst *opt_inst; 16373d249d4cSJiri Pirko char *opt_name; 16383d249d4cSJiri Pirko bool opt_found = false; 16393d249d4cSJiri Pirko 16403d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 16413d249d4cSJiri Pirko err = -EINVAL; 16423d249d4cSJiri Pirko goto team_put; 16433d249d4cSJiri Pirko } 164480f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 16453d249d4cSJiri Pirko nl_option, team_nl_option_policy); 16463d249d4cSJiri Pirko if (err) 16473d249d4cSJiri Pirko goto team_put; 164880f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 164914f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 16503d249d4cSJiri Pirko err = -EINVAL; 16513d249d4cSJiri Pirko goto team_put; 16523d249d4cSJiri Pirko } 165380f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 16543d249d4cSJiri Pirko case NLA_U32: 16553d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 16563d249d4cSJiri Pirko break; 16573d249d4cSJiri Pirko case NLA_STRING: 16583d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 16593d249d4cSJiri Pirko break; 16602615598fSJiri Pirko case NLA_BINARY: 16612615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 16622615598fSJiri Pirko break; 166314f066baSJiri Pirko case NLA_FLAG: 166414f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 166514f066baSJiri Pirko break; 16663d249d4cSJiri Pirko default: 16673d249d4cSJiri Pirko goto team_put; 16683d249d4cSJiri Pirko } 16693d249d4cSJiri Pirko 167014f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 167114f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 167214f066baSJiri Pirko err = -EINVAL; 167314f066baSJiri Pirko goto team_put; 167414f066baSJiri Pirko } 167514f066baSJiri Pirko 167680f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 167780f7c668SJiri Pirko attr_port_ifindex = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 167880f7c668SJiri Pirko if (attr_port_ifindex) 167980f7c668SJiri Pirko opt_port_ifindex = nla_get_u32(attr_port_ifindex); 16803d249d4cSJiri Pirko 168180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 168280f7c668SJiri Pirko struct team_option *option = opt_inst->option; 168380f7c668SJiri Pirko struct team_gsetter_ctx ctx; 168480f7c668SJiri Pirko int tmp_ifindex; 168580f7c668SJiri Pirko 168680f7c668SJiri Pirko tmp_ifindex = opt_inst->port ? 168780f7c668SJiri Pirko opt_inst->port->dev->ifindex : 0; 16883d249d4cSJiri Pirko if (option->type != opt_type || 168980f7c668SJiri Pirko strcmp(option->name, opt_name) || 169080f7c668SJiri Pirko tmp_ifindex != opt_port_ifindex) 16913d249d4cSJiri Pirko continue; 16923d249d4cSJiri Pirko opt_found = true; 169380f7c668SJiri Pirko ctx.port = opt_inst->port; 16943d249d4cSJiri Pirko switch (opt_type) { 16953d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 169614f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 16973d249d4cSJiri Pirko break; 16983d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 169914f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 17002615598fSJiri Pirko err = -EINVAL; 17012615598fSJiri Pirko goto team_put; 17022615598fSJiri Pirko } 170314f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 17043d249d4cSJiri Pirko break; 17052615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 170614f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 170714f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 170814f066baSJiri Pirko break; 170914f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 171014f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 17112615598fSJiri Pirko break; 17123d249d4cSJiri Pirko default: 17133d249d4cSJiri Pirko BUG(); 17143d249d4cSJiri Pirko } 171580f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 17163d249d4cSJiri Pirko if (err) 17173d249d4cSJiri Pirko goto team_put; 17183d249d4cSJiri Pirko } 17193d249d4cSJiri Pirko if (!opt_found) { 17203d249d4cSJiri Pirko err = -ENOENT; 17213d249d4cSJiri Pirko goto team_put; 17223d249d4cSJiri Pirko } 17233d249d4cSJiri Pirko } 17243d249d4cSJiri Pirko 17253d249d4cSJiri Pirko team_put: 17263d249d4cSJiri Pirko team_nl_team_put(team); 17273d249d4cSJiri Pirko 17283d249d4cSJiri Pirko return err; 17293d249d4cSJiri Pirko } 17303d249d4cSJiri Pirko 1731b82b9183SJiri Pirko static int team_nl_fill_port_list_get(struct sk_buff *skb, 17323d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 17333d249d4cSJiri Pirko struct team *team, 1734b82b9183SJiri Pirko bool fillall) 17353d249d4cSJiri Pirko { 17363d249d4cSJiri Pirko struct nlattr *port_list; 17373d249d4cSJiri Pirko void *hdr; 17383d249d4cSJiri Pirko struct team_port *port; 17393d249d4cSJiri Pirko 17403d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 17413d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 17423d249d4cSJiri Pirko if (IS_ERR(hdr)) 17433d249d4cSJiri Pirko return PTR_ERR(hdr); 17443d249d4cSJiri Pirko 174586ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 174686ebb02dSDavid S. Miller goto nla_put_failure; 17473d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 17483d249d4cSJiri Pirko if (!port_list) 17493d249d4cSJiri Pirko return -EMSGSIZE; 17503d249d4cSJiri Pirko 17513d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17523d249d4cSJiri Pirko struct nlattr *port_item; 17533d249d4cSJiri Pirko 1754b82b9183SJiri Pirko /* Include only changed ports if fill all mode is not on */ 1755b82b9183SJiri Pirko if (!fillall && !port->changed) 1756b82b9183SJiri Pirko continue; 17573d249d4cSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 17583d249d4cSJiri Pirko if (!port_item) 17593d249d4cSJiri Pirko goto nla_put_failure; 176086ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 176186ebb02dSDavid S. Miller goto nla_put_failure; 1762b82b9183SJiri Pirko if (port->changed) { 176386ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 176486ebb02dSDavid S. Miller goto nla_put_failure; 1765b82b9183SJiri Pirko port->changed = false; 1766b82b9183SJiri Pirko } 176786ebb02dSDavid S. Miller if ((port->removed && 176886ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 176971472ec1SJiri Pirko (port->state.linkup && 177086ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 177171472ec1SJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 177271472ec1SJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 177386ebb02dSDavid S. Miller goto nla_put_failure; 17743d249d4cSJiri Pirko nla_nest_end(skb, port_item); 17753d249d4cSJiri Pirko } 17763d249d4cSJiri Pirko 17773d249d4cSJiri Pirko nla_nest_end(skb, port_list); 17783d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 17793d249d4cSJiri Pirko 17803d249d4cSJiri Pirko nla_put_failure: 17813d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 17823d249d4cSJiri Pirko return -EMSGSIZE; 17833d249d4cSJiri Pirko } 17843d249d4cSJiri Pirko 1785b82b9183SJiri Pirko static int team_nl_fill_port_list_get_all(struct sk_buff *skb, 17863d249d4cSJiri Pirko struct genl_info *info, int flags, 17873d249d4cSJiri Pirko struct team *team) 17883d249d4cSJiri Pirko { 1789b82b9183SJiri Pirko return team_nl_fill_port_list_get(skb, info->snd_pid, 17903d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 1791b82b9183SJiri Pirko team, true); 17923d249d4cSJiri Pirko } 17933d249d4cSJiri Pirko 17943d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 17953d249d4cSJiri Pirko struct genl_info *info) 17963d249d4cSJiri Pirko { 17973d249d4cSJiri Pirko struct team *team; 17983d249d4cSJiri Pirko int err; 17993d249d4cSJiri Pirko 18003d249d4cSJiri Pirko team = team_nl_team_get(info); 18013d249d4cSJiri Pirko if (!team) 18023d249d4cSJiri Pirko return -EINVAL; 18033d249d4cSJiri Pirko 1804b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_port_list_get_all); 18053d249d4cSJiri Pirko 18063d249d4cSJiri Pirko team_nl_team_put(team); 18073d249d4cSJiri Pirko 18083d249d4cSJiri Pirko return err; 18093d249d4cSJiri Pirko } 18103d249d4cSJiri Pirko 18113d249d4cSJiri Pirko static struct genl_ops team_nl_ops[] = { 18123d249d4cSJiri Pirko { 18133d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 18143d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 18153d249d4cSJiri Pirko .policy = team_nl_policy, 18163d249d4cSJiri Pirko }, 18173d249d4cSJiri Pirko { 18183d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 18193d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 18203d249d4cSJiri Pirko .policy = team_nl_policy, 18213d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18223d249d4cSJiri Pirko }, 18233d249d4cSJiri Pirko { 18243d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 18253d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 18263d249d4cSJiri Pirko .policy = team_nl_policy, 18273d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18283d249d4cSJiri Pirko }, 18293d249d4cSJiri Pirko { 18303d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 18313d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 18323d249d4cSJiri Pirko .policy = team_nl_policy, 18333d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18343d249d4cSJiri Pirko }, 18353d249d4cSJiri Pirko }; 18363d249d4cSJiri Pirko 18373d249d4cSJiri Pirko static struct genl_multicast_group team_change_event_mcgrp = { 18383d249d4cSJiri Pirko .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, 18393d249d4cSJiri Pirko }; 18403d249d4cSJiri Pirko 1841b82b9183SJiri Pirko static int team_nl_send_event_options_get(struct team *team) 18423d249d4cSJiri Pirko { 18433d249d4cSJiri Pirko struct sk_buff *skb; 18443d249d4cSJiri Pirko int err; 18453d249d4cSJiri Pirko struct net *net = dev_net(team->dev); 18463d249d4cSJiri Pirko 18473d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 18483d249d4cSJiri Pirko if (!skb) 18493d249d4cSJiri Pirko return -ENOMEM; 18503d249d4cSJiri Pirko 1851b82b9183SJiri Pirko err = team_nl_fill_options_get(skb, 0, 0, 0, team, false); 18523d249d4cSJiri Pirko if (err < 0) 18533d249d4cSJiri Pirko goto err_fill; 18543d249d4cSJiri Pirko 18553d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 18563d249d4cSJiri Pirko GFP_KERNEL); 18573d249d4cSJiri Pirko return err; 18583d249d4cSJiri Pirko 18593d249d4cSJiri Pirko err_fill: 18603d249d4cSJiri Pirko nlmsg_free(skb); 18613d249d4cSJiri Pirko return err; 18623d249d4cSJiri Pirko } 18633d249d4cSJiri Pirko 1864b82b9183SJiri Pirko static int team_nl_send_event_port_list_get(struct team *team) 18653d249d4cSJiri Pirko { 18663d249d4cSJiri Pirko struct sk_buff *skb; 18673d249d4cSJiri Pirko int err; 1868b82b9183SJiri Pirko struct net *net = dev_net(team->dev); 18693d249d4cSJiri Pirko 18703d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 18713d249d4cSJiri Pirko if (!skb) 18723d249d4cSJiri Pirko return -ENOMEM; 18733d249d4cSJiri Pirko 1874b82b9183SJiri Pirko err = team_nl_fill_port_list_get(skb, 0, 0, 0, team, false); 18753d249d4cSJiri Pirko if (err < 0) 18763d249d4cSJiri Pirko goto err_fill; 18773d249d4cSJiri Pirko 18783d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 18793d249d4cSJiri Pirko GFP_KERNEL); 18803d249d4cSJiri Pirko return err; 18813d249d4cSJiri Pirko 18823d249d4cSJiri Pirko err_fill: 18833d249d4cSJiri Pirko nlmsg_free(skb); 18843d249d4cSJiri Pirko return err; 18853d249d4cSJiri Pirko } 18863d249d4cSJiri Pirko 18873d249d4cSJiri Pirko static int team_nl_init(void) 18883d249d4cSJiri Pirko { 18893d249d4cSJiri Pirko int err; 18903d249d4cSJiri Pirko 18913d249d4cSJiri Pirko err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, 18923d249d4cSJiri Pirko ARRAY_SIZE(team_nl_ops)); 18933d249d4cSJiri Pirko if (err) 18943d249d4cSJiri Pirko return err; 18953d249d4cSJiri Pirko 18963d249d4cSJiri Pirko err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); 18973d249d4cSJiri Pirko if (err) 18983d249d4cSJiri Pirko goto err_change_event_grp_reg; 18993d249d4cSJiri Pirko 19003d249d4cSJiri Pirko return 0; 19013d249d4cSJiri Pirko 19023d249d4cSJiri Pirko err_change_event_grp_reg: 19033d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 19043d249d4cSJiri Pirko 19053d249d4cSJiri Pirko return err; 19063d249d4cSJiri Pirko } 19073d249d4cSJiri Pirko 19083d249d4cSJiri Pirko static void team_nl_fini(void) 19093d249d4cSJiri Pirko { 19103d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 19113d249d4cSJiri Pirko } 19123d249d4cSJiri Pirko 19133d249d4cSJiri Pirko 19143d249d4cSJiri Pirko /****************** 19153d249d4cSJiri Pirko * Change checkers 19163d249d4cSJiri Pirko ******************/ 19173d249d4cSJiri Pirko 1918b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 19193d249d4cSJiri Pirko { 19203d249d4cSJiri Pirko int err; 19213d249d4cSJiri Pirko 1922b82b9183SJiri Pirko err = team_nl_send_event_options_get(team); 19233d249d4cSJiri Pirko if (err) 19243d249d4cSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink\n"); 19253d249d4cSJiri Pirko } 19263d249d4cSJiri Pirko 19273d249d4cSJiri Pirko /* rtnl lock is held */ 19283d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 19293d249d4cSJiri Pirko { 19303d249d4cSJiri Pirko int err; 19313d249d4cSJiri Pirko 193271472ec1SJiri Pirko if (!port->removed && port->state.linkup == linkup) 19333d249d4cSJiri Pirko return; 19343d249d4cSJiri Pirko 1935b82b9183SJiri Pirko port->changed = true; 193671472ec1SJiri Pirko port->state.linkup = linkup; 193771472ec1SJiri Pirko team_refresh_port_linkup(port); 19383d249d4cSJiri Pirko if (linkup) { 19393d249d4cSJiri Pirko struct ethtool_cmd ecmd; 19403d249d4cSJiri Pirko 19413d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 19423d249d4cSJiri Pirko if (!err) { 194371472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 194471472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 19453d249d4cSJiri Pirko goto send_event; 19463d249d4cSJiri Pirko } 19473d249d4cSJiri Pirko } 194871472ec1SJiri Pirko port->state.speed = 0; 194971472ec1SJiri Pirko port->state.duplex = 0; 19503d249d4cSJiri Pirko 19513d249d4cSJiri Pirko send_event: 1952b82b9183SJiri Pirko err = team_nl_send_event_port_list_get(port->team); 19533d249d4cSJiri Pirko if (err) 19543d249d4cSJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink\n", 19553d249d4cSJiri Pirko port->dev->name); 19563d249d4cSJiri Pirko 19573d249d4cSJiri Pirko } 19583d249d4cSJiri Pirko 19593d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 19603d249d4cSJiri Pirko { 19613d249d4cSJiri Pirko struct team *team = port->team; 19623d249d4cSJiri Pirko 196361dc3461SJiri Pirko mutex_lock(&team->lock); 19643d249d4cSJiri Pirko __team_port_change_check(port, linkup); 196561dc3461SJiri Pirko mutex_unlock(&team->lock); 19663d249d4cSJiri Pirko } 19673d249d4cSJiri Pirko 19683d249d4cSJiri Pirko /************************************ 19693d249d4cSJiri Pirko * Net device notifier event handler 19703d249d4cSJiri Pirko ************************************/ 19713d249d4cSJiri Pirko 19723d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 19733d249d4cSJiri Pirko unsigned long event, void *ptr) 19743d249d4cSJiri Pirko { 19753d249d4cSJiri Pirko struct net_device *dev = (struct net_device *) ptr; 19763d249d4cSJiri Pirko struct team_port *port; 19773d249d4cSJiri Pirko 19783d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 19793d249d4cSJiri Pirko if (!port) 19803d249d4cSJiri Pirko return NOTIFY_DONE; 19813d249d4cSJiri Pirko 19823d249d4cSJiri Pirko switch (event) { 19833d249d4cSJiri Pirko case NETDEV_UP: 19843d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 19853d249d4cSJiri Pirko team_port_change_check(port, true); 19863d249d4cSJiri Pirko case NETDEV_DOWN: 19873d249d4cSJiri Pirko team_port_change_check(port, false); 19883d249d4cSJiri Pirko case NETDEV_CHANGE: 19893d249d4cSJiri Pirko if (netif_running(port->dev)) 19903d249d4cSJiri Pirko team_port_change_check(port, 19913d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 19923d249d4cSJiri Pirko break; 19933d249d4cSJiri Pirko case NETDEV_UNREGISTER: 19943d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 19953d249d4cSJiri Pirko break; 19963d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 19973d249d4cSJiri Pirko team_compute_features(port->team); 19983d249d4cSJiri Pirko break; 19993d249d4cSJiri Pirko case NETDEV_CHANGEMTU: 20003d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 20013d249d4cSJiri Pirko return NOTIFY_BAD; 20023d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 20033d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 20043d249d4cSJiri Pirko return NOTIFY_BAD; 20053d249d4cSJiri Pirko } 20063d249d4cSJiri Pirko return NOTIFY_DONE; 20073d249d4cSJiri Pirko } 20083d249d4cSJiri Pirko 20093d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 20103d249d4cSJiri Pirko .notifier_call = team_device_event, 20113d249d4cSJiri Pirko }; 20123d249d4cSJiri Pirko 20133d249d4cSJiri Pirko 20143d249d4cSJiri Pirko /*********************** 20153d249d4cSJiri Pirko * Module init and exit 20163d249d4cSJiri Pirko ***********************/ 20173d249d4cSJiri Pirko 20183d249d4cSJiri Pirko static int __init team_module_init(void) 20193d249d4cSJiri Pirko { 20203d249d4cSJiri Pirko int err; 20213d249d4cSJiri Pirko 20223d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 20233d249d4cSJiri Pirko 20243d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 20253d249d4cSJiri Pirko if (err) 20263d249d4cSJiri Pirko goto err_rtnl_reg; 20273d249d4cSJiri Pirko 20283d249d4cSJiri Pirko err = team_nl_init(); 20293d249d4cSJiri Pirko if (err) 20303d249d4cSJiri Pirko goto err_nl_init; 20313d249d4cSJiri Pirko 20323d249d4cSJiri Pirko return 0; 20333d249d4cSJiri Pirko 20343d249d4cSJiri Pirko err_nl_init: 20353d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 20363d249d4cSJiri Pirko 20373d249d4cSJiri Pirko err_rtnl_reg: 20383d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 20393d249d4cSJiri Pirko 20403d249d4cSJiri Pirko return err; 20413d249d4cSJiri Pirko } 20423d249d4cSJiri Pirko 20433d249d4cSJiri Pirko static void __exit team_module_exit(void) 20443d249d4cSJiri Pirko { 20453d249d4cSJiri Pirko team_nl_fini(); 20463d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 20473d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 20483d249d4cSJiri Pirko } 20493d249d4cSJiri Pirko 20503d249d4cSJiri Pirko module_init(team_module_init); 20513d249d4cSJiri Pirko module_exit(team_module_exit); 20523d249d4cSJiri Pirko 20533d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 20543d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 20553d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 20563d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2057