13d249d4cSJiri Pirko /* 20d572e45SJiri Pirko * drivers/net/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> 21bd2d0837SJiri Pirko #include <linux/netpoll.h> 2287002b03SJiri Pirko #include <linux/if_vlan.h> 233d249d4cSJiri Pirko #include <linux/if_arp.h> 243d249d4cSJiri Pirko #include <linux/socket.h> 253d249d4cSJiri Pirko #include <linux/etherdevice.h> 263d249d4cSJiri Pirko #include <linux/rtnetlink.h> 273d249d4cSJiri Pirko #include <net/rtnetlink.h> 283d249d4cSJiri Pirko #include <net/genetlink.h> 293d249d4cSJiri Pirko #include <net/netlink.h> 306c85f2bdSJiri Pirko #include <net/sch_generic.h> 313d249d4cSJiri Pirko #include <linux/if_team.h> 323d249d4cSJiri Pirko 333d249d4cSJiri Pirko #define DRV_NAME "team" 343d249d4cSJiri Pirko 353d249d4cSJiri Pirko 363d249d4cSJiri Pirko /********** 373d249d4cSJiri Pirko * Helpers 383d249d4cSJiri Pirko **********/ 393d249d4cSJiri Pirko 403d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 413d249d4cSJiri Pirko 423d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 433d249d4cSJiri Pirko { 443d249d4cSJiri Pirko struct team_port *port = rcu_dereference(dev->rx_handler_data); 453d249d4cSJiri Pirko 463d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 473d249d4cSJiri Pirko } 483d249d4cSJiri Pirko 493d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 503d249d4cSJiri Pirko { 513d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 523d249d4cSJiri Pirko 533d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 543d249d4cSJiri Pirko } 553d249d4cSJiri Pirko 563d249d4cSJiri Pirko /* 573d249d4cSJiri Pirko * Since the ability to change mac address for open port device is tested in 583d249d4cSJiri Pirko * team_port_add, this function can be called without control of return value 593d249d4cSJiri Pirko */ 603d249d4cSJiri Pirko static int __set_port_mac(struct net_device *port_dev, 613d249d4cSJiri Pirko const unsigned char *dev_addr) 623d249d4cSJiri Pirko { 633d249d4cSJiri Pirko struct sockaddr addr; 643d249d4cSJiri Pirko 653d249d4cSJiri Pirko memcpy(addr.sa_data, dev_addr, ETH_ALEN); 663d249d4cSJiri Pirko addr.sa_family = ARPHRD_ETHER; 673d249d4cSJiri Pirko return dev_set_mac_address(port_dev, &addr); 683d249d4cSJiri Pirko } 693d249d4cSJiri Pirko 70cade4555SJiri Pirko static int team_port_set_orig_mac(struct team_port *port) 713d249d4cSJiri Pirko { 723d249d4cSJiri Pirko return __set_port_mac(port->dev, port->orig.dev_addr); 733d249d4cSJiri Pirko } 743d249d4cSJiri Pirko 753d249d4cSJiri Pirko int team_port_set_team_mac(struct team_port *port) 763d249d4cSJiri Pirko { 773d249d4cSJiri Pirko return __set_port_mac(port->dev, port->team->dev->dev_addr); 783d249d4cSJiri Pirko } 793d249d4cSJiri Pirko EXPORT_SYMBOL(team_port_set_team_mac); 803d249d4cSJiri Pirko 8171472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 8271472ec1SJiri Pirko { 8371472ec1SJiri Pirko port->linkup = port->user.linkup_enabled ? port->user.linkup : 8471472ec1SJiri Pirko port->state.linkup; 8571472ec1SJiri Pirko } 863d249d4cSJiri Pirko 870f1aad2bSJiri Pirko 883d249d4cSJiri Pirko /******************* 893d249d4cSJiri Pirko * Options handling 903d249d4cSJiri Pirko *******************/ 913d249d4cSJiri Pirko 9280f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 9380f7c668SJiri Pirko struct list_head list; 9401048d9aSJiri Pirko struct list_head tmp_list; 9580f7c668SJiri Pirko struct team_option *option; 9685d59a87SJiri Pirko struct team_option_inst_info info; 9780f7c668SJiri Pirko bool changed; 9880f7c668SJiri Pirko bool removed; 9980f7c668SJiri Pirko }; 10080f7c668SJiri Pirko 10180f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 10280f7c668SJiri Pirko const char *opt_name) 103358b8382SJiri Pirko { 104358b8382SJiri Pirko struct team_option *option; 105358b8382SJiri Pirko 106358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 107358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 108358b8382SJiri Pirko return option; 109358b8382SJiri Pirko } 110358b8382SJiri Pirko return NULL; 111358b8382SJiri Pirko } 112358b8382SJiri Pirko 11380f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 11480f7c668SJiri Pirko { 11580f7c668SJiri Pirko list_del(&opt_inst->list); 11680f7c668SJiri Pirko kfree(opt_inst); 11780f7c668SJiri Pirko } 11880f7c668SJiri Pirko 11980f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 12080f7c668SJiri Pirko struct team_option *option) 12180f7c668SJiri Pirko { 12280f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 12380f7c668SJiri Pirko 12480f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 12580f7c668SJiri Pirko if (opt_inst->option == option) 12680f7c668SJiri Pirko __team_option_inst_del(opt_inst); 12780f7c668SJiri Pirko } 12880f7c668SJiri Pirko } 12980f7c668SJiri Pirko 130b1303326SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 131b1303326SJiri Pirko struct team_port *port) 132b1303326SJiri Pirko { 133b1303326SJiri Pirko struct team_option_inst *opt_inst; 134b1303326SJiri Pirko unsigned int array_size; 135b1303326SJiri Pirko unsigned int i; 13685d59a87SJiri Pirko int err; 137b1303326SJiri Pirko 138b1303326SJiri Pirko array_size = option->array_size; 139b1303326SJiri Pirko if (!array_size) 140b1303326SJiri Pirko array_size = 1; /* No array but still need one instance */ 141b1303326SJiri Pirko 142b1303326SJiri Pirko for (i = 0; i < array_size; i++) { 143b1303326SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 144b1303326SJiri Pirko if (!opt_inst) 145b1303326SJiri Pirko return -ENOMEM; 146b1303326SJiri Pirko opt_inst->option = option; 14785d59a87SJiri Pirko opt_inst->info.port = port; 14885d59a87SJiri Pirko opt_inst->info.array_index = i; 149b1303326SJiri Pirko opt_inst->changed = true; 150b1303326SJiri Pirko opt_inst->removed = false; 151b1303326SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 15285d59a87SJiri Pirko if (option->init) { 15385d59a87SJiri Pirko err = option->init(team, &opt_inst->info); 15485d59a87SJiri Pirko if (err) 15585d59a87SJiri Pirko return err; 15685d59a87SJiri Pirko } 15785d59a87SJiri Pirko 158b1303326SJiri Pirko } 159b1303326SJiri Pirko return 0; 160b1303326SJiri Pirko } 161b1303326SJiri Pirko 16280f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 16380f7c668SJiri Pirko struct team_option *option) 16480f7c668SJiri Pirko { 16580f7c668SJiri Pirko struct team_port *port; 16680f7c668SJiri Pirko int err; 16780f7c668SJiri Pirko 168b1303326SJiri Pirko if (!option->per_port) { 169f88725ffSJiri Pirko err = __team_option_inst_add(team, option, NULL); 170b1303326SJiri Pirko if (err) 171b1303326SJiri Pirko goto inst_del_option; 172b1303326SJiri Pirko } 17380f7c668SJiri Pirko 17480f7c668SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17580f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 17680f7c668SJiri Pirko if (err) 17780f7c668SJiri Pirko goto inst_del_option; 17880f7c668SJiri Pirko } 17980f7c668SJiri Pirko return 0; 18080f7c668SJiri Pirko 18180f7c668SJiri Pirko inst_del_option: 18280f7c668SJiri Pirko __team_option_inst_del_option(team, option); 18380f7c668SJiri Pirko return err; 18480f7c668SJiri Pirko } 18580f7c668SJiri Pirko 18680f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 18780f7c668SJiri Pirko struct team_option *option) 18880f7c668SJiri Pirko { 18980f7c668SJiri Pirko struct team_option_inst *opt_inst; 19080f7c668SJiri Pirko 19180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 19280f7c668SJiri Pirko if (opt_inst->option == option) { 19380f7c668SJiri Pirko opt_inst->changed = true; 19480f7c668SJiri Pirko opt_inst->removed = true; 19580f7c668SJiri Pirko } 19680f7c668SJiri Pirko } 19780f7c668SJiri Pirko } 19880f7c668SJiri Pirko 19980f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 20080f7c668SJiri Pirko struct team_port *port) 20180f7c668SJiri Pirko { 20280f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 20380f7c668SJiri Pirko 20480f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 20580f7c668SJiri Pirko if (opt_inst->option->per_port && 20685d59a87SJiri Pirko opt_inst->info.port == port) 20780f7c668SJiri Pirko __team_option_inst_del(opt_inst); 20880f7c668SJiri Pirko } 20980f7c668SJiri Pirko } 21080f7c668SJiri Pirko 21180f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 21280f7c668SJiri Pirko struct team_port *port) 21380f7c668SJiri Pirko { 21480f7c668SJiri Pirko struct team_option *option; 21580f7c668SJiri Pirko int err; 21680f7c668SJiri Pirko 21780f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 21880f7c668SJiri Pirko if (!option->per_port) 21980f7c668SJiri Pirko continue; 22080f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 22180f7c668SJiri Pirko if (err) 22280f7c668SJiri Pirko goto inst_del_port; 22380f7c668SJiri Pirko } 22480f7c668SJiri Pirko return 0; 22580f7c668SJiri Pirko 22680f7c668SJiri Pirko inst_del_port: 22780f7c668SJiri Pirko __team_option_inst_del_port(team, port); 22880f7c668SJiri Pirko return err; 22980f7c668SJiri Pirko } 23080f7c668SJiri Pirko 23180f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 23280f7c668SJiri Pirko struct team_port *port) 23380f7c668SJiri Pirko { 23480f7c668SJiri Pirko struct team_option_inst *opt_inst; 23580f7c668SJiri Pirko 23680f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 23785d59a87SJiri Pirko if (opt_inst->info.port == port) { 23880f7c668SJiri Pirko opt_inst->changed = true; 23980f7c668SJiri Pirko opt_inst->removed = true; 24080f7c668SJiri Pirko } 24180f7c668SJiri Pirko } 24280f7c668SJiri Pirko } 24380f7c668SJiri Pirko 24480f7c668SJiri Pirko static int __team_options_register(struct team *team, 245358b8382SJiri Pirko const struct team_option *option, 2463d249d4cSJiri Pirko size_t option_count) 2473d249d4cSJiri Pirko { 2483d249d4cSJiri Pirko int i; 2492bba19ffSJiri Pirko struct team_option **dst_opts; 250358b8382SJiri Pirko int err; 2513d249d4cSJiri Pirko 2522bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2532bba19ffSJiri Pirko GFP_KERNEL); 2542bba19ffSJiri Pirko if (!dst_opts) 2552bba19ffSJiri Pirko return -ENOMEM; 256358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 257358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 258358b8382SJiri Pirko err = -EEXIST; 25980f7c668SJiri Pirko goto alloc_rollback; 2603d249d4cSJiri Pirko } 261f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 262f8a15af0SJiri Pirko if (!dst_opts[i]) { 263358b8382SJiri Pirko err = -ENOMEM; 26480f7c668SJiri Pirko goto alloc_rollback; 265358b8382SJiri Pirko } 266358b8382SJiri Pirko } 267358b8382SJiri Pirko 268b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 26980f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 27080f7c668SJiri Pirko if (err) 27180f7c668SJiri Pirko goto inst_rollback; 272358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 273b82b9183SJiri Pirko } 274358b8382SJiri Pirko 2752bba19ffSJiri Pirko kfree(dst_opts); 276358b8382SJiri Pirko return 0; 277358b8382SJiri Pirko 27880f7c668SJiri Pirko inst_rollback: 27980f7c668SJiri Pirko for (i--; i >= 0; i--) 28080f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 28180f7c668SJiri Pirko 28280f7c668SJiri Pirko i = option_count - 1; 28380f7c668SJiri Pirko alloc_rollback: 28480f7c668SJiri Pirko for (i--; i >= 0; i--) 285358b8382SJiri Pirko kfree(dst_opts[i]); 286358b8382SJiri Pirko 2872bba19ffSJiri Pirko kfree(dst_opts); 288358b8382SJiri Pirko return err; 289358b8382SJiri Pirko } 290358b8382SJiri Pirko 291b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 292b82b9183SJiri Pirko const struct team_option *option, 293b82b9183SJiri Pirko size_t option_count) 294b82b9183SJiri Pirko { 295b82b9183SJiri Pirko int i; 2963d249d4cSJiri Pirko 297b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 298b82b9183SJiri Pirko struct team_option *del_opt; 299b82b9183SJiri Pirko 300b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 30180f7c668SJiri Pirko if (del_opt) 30280f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 303b82b9183SJiri Pirko } 304b82b9183SJiri Pirko } 3053d249d4cSJiri Pirko 3063d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 307358b8382SJiri Pirko const struct team_option *option, 3083d249d4cSJiri Pirko size_t option_count) 3093d249d4cSJiri Pirko { 3103d249d4cSJiri Pirko int i; 3113d249d4cSJiri Pirko 312358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 313358b8382SJiri Pirko struct team_option *del_opt; 314358b8382SJiri Pirko 315358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 316358b8382SJiri Pirko if (del_opt) { 31780f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 318358b8382SJiri Pirko list_del(&del_opt->list); 319358b8382SJiri Pirko kfree(del_opt); 320358b8382SJiri Pirko } 321358b8382SJiri Pirko } 3223d249d4cSJiri Pirko } 3233d249d4cSJiri Pirko 324b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 325b82b9183SJiri Pirko 326b82b9183SJiri Pirko int team_options_register(struct team *team, 327b82b9183SJiri Pirko const struct team_option *option, 328b82b9183SJiri Pirko size_t option_count) 329b82b9183SJiri Pirko { 330b82b9183SJiri Pirko int err; 331b82b9183SJiri Pirko 332b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 333b82b9183SJiri Pirko if (err) 334b82b9183SJiri Pirko return err; 335b82b9183SJiri Pirko __team_options_change_check(team); 336b82b9183SJiri Pirko return 0; 337b82b9183SJiri Pirko } 338b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 339b82b9183SJiri Pirko 340358b8382SJiri Pirko void team_options_unregister(struct team *team, 341358b8382SJiri Pirko const struct team_option *option, 3423d249d4cSJiri Pirko size_t option_count) 3433d249d4cSJiri Pirko { 344b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 345b82b9183SJiri Pirko __team_options_change_check(team); 3463d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3473d249d4cSJiri Pirko } 3483d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3493d249d4cSJiri Pirko 35080f7c668SJiri Pirko static int team_option_get(struct team *team, 35180f7c668SJiri Pirko struct team_option_inst *opt_inst, 35280f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 35380f7c668SJiri Pirko { 354f82b959dSJiri Pirko if (!opt_inst->option->getter) 355f82b959dSJiri Pirko return -EOPNOTSUPP; 35680f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 35780f7c668SJiri Pirko } 35880f7c668SJiri Pirko 35980f7c668SJiri Pirko static int team_option_set(struct team *team, 36080f7c668SJiri Pirko struct team_option_inst *opt_inst, 36180f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 36280f7c668SJiri Pirko { 363f82b959dSJiri Pirko if (!opt_inst->option->setter) 364f82b959dSJiri Pirko return -EOPNOTSUPP; 3652fcdb2c9SJiri Pirko return opt_inst->option->setter(team, ctx); 3663d249d4cSJiri Pirko } 3673d249d4cSJiri Pirko 3680f1aad2bSJiri Pirko void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) 3690f1aad2bSJiri Pirko { 3700f1aad2bSJiri Pirko struct team_option_inst *opt_inst; 3710f1aad2bSJiri Pirko 3720f1aad2bSJiri Pirko opt_inst = container_of(opt_inst_info, struct team_option_inst, info); 3730f1aad2bSJiri Pirko opt_inst->changed = true; 3740f1aad2bSJiri Pirko } 3750f1aad2bSJiri Pirko EXPORT_SYMBOL(team_option_inst_set_change); 3760f1aad2bSJiri Pirko 3770f1aad2bSJiri Pirko void team_options_change_check(struct team *team) 3780f1aad2bSJiri Pirko { 3790f1aad2bSJiri Pirko __team_options_change_check(team); 3800f1aad2bSJiri Pirko } 3810f1aad2bSJiri Pirko EXPORT_SYMBOL(team_options_change_check); 3820f1aad2bSJiri Pirko 3830f1aad2bSJiri Pirko 3843d249d4cSJiri Pirko /**************** 3853d249d4cSJiri Pirko * Mode handling 3863d249d4cSJiri Pirko ****************/ 3873d249d4cSJiri Pirko 3883d249d4cSJiri Pirko static LIST_HEAD(mode_list); 3893d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 3903d249d4cSJiri Pirko 3910402788aSJiri Pirko struct team_mode_item { 3920402788aSJiri Pirko struct list_head list; 3930402788aSJiri Pirko const struct team_mode *mode; 3940402788aSJiri Pirko }; 3953d249d4cSJiri Pirko 3960402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 3970402788aSJiri Pirko { 3980402788aSJiri Pirko struct team_mode_item *mitem; 3990402788aSJiri Pirko 4000402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 4010402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 4020402788aSJiri Pirko return mitem; 4033d249d4cSJiri Pirko } 4043d249d4cSJiri Pirko return NULL; 4053d249d4cSJiri Pirko } 4063d249d4cSJiri Pirko 4073d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 4083d249d4cSJiri Pirko { 4093d249d4cSJiri Pirko while (*name != '\0') { 4103d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 4113d249d4cSJiri Pirko return false; 4123d249d4cSJiri Pirko name++; 4133d249d4cSJiri Pirko } 4143d249d4cSJiri Pirko return true; 4153d249d4cSJiri Pirko } 4163d249d4cSJiri Pirko 4170402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4183d249d4cSJiri Pirko { 4193d249d4cSJiri Pirko int err = 0; 4200402788aSJiri Pirko struct team_mode_item *mitem; 4213d249d4cSJiri Pirko 4223d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4233d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4243d249d4cSJiri Pirko return -EINVAL; 4250402788aSJiri Pirko 4260402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4270402788aSJiri Pirko if (!mitem) 4280402788aSJiri Pirko return -ENOMEM; 4290402788aSJiri Pirko 4303d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4313d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4323d249d4cSJiri Pirko err = -EEXIST; 4330402788aSJiri Pirko kfree(mitem); 4343d249d4cSJiri Pirko goto unlock; 4353d249d4cSJiri Pirko } 4360402788aSJiri Pirko mitem->mode = mode; 4370402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4383d249d4cSJiri Pirko unlock: 4393d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4403d249d4cSJiri Pirko return err; 4413d249d4cSJiri Pirko } 4423d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4433d249d4cSJiri Pirko 4440402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4453d249d4cSJiri Pirko { 4460402788aSJiri Pirko struct team_mode_item *mitem; 4470402788aSJiri Pirko 4483d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4490402788aSJiri Pirko mitem = __find_mode(mode->kind); 4500402788aSJiri Pirko if (mitem) { 4510402788aSJiri Pirko list_del_init(&mitem->list); 4520402788aSJiri Pirko kfree(mitem); 4530402788aSJiri Pirko } 4543d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4553d249d4cSJiri Pirko } 4563d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4573d249d4cSJiri Pirko 4580402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4593d249d4cSJiri Pirko { 4600402788aSJiri Pirko struct team_mode_item *mitem; 4610402788aSJiri Pirko const struct team_mode *mode = NULL; 4623d249d4cSJiri Pirko 4633d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4640402788aSJiri Pirko mitem = __find_mode(kind); 4650402788aSJiri Pirko if (!mitem) { 4663d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4673d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4683d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4690402788aSJiri Pirko mitem = __find_mode(kind); 4703d249d4cSJiri Pirko } 4710402788aSJiri Pirko if (mitem) { 4720402788aSJiri Pirko mode = mitem->mode; 4733d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4743d249d4cSJiri Pirko mode = NULL; 4750402788aSJiri Pirko } 4763d249d4cSJiri Pirko 4773d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4783d249d4cSJiri Pirko return mode; 4793d249d4cSJiri Pirko } 4803d249d4cSJiri Pirko 4813d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 4823d249d4cSJiri Pirko { 4833d249d4cSJiri Pirko module_put(mode->owner); 4843d249d4cSJiri Pirko } 4853d249d4cSJiri Pirko 4863d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 4873d249d4cSJiri Pirko { 4883d249d4cSJiri Pirko dev_kfree_skb_any(skb); 4893d249d4cSJiri Pirko return false; 4903d249d4cSJiri Pirko } 4913d249d4cSJiri Pirko 4923d249d4cSJiri Pirko rx_handler_result_t team_dummy_receive(struct team *team, 4933d249d4cSJiri Pirko struct team_port *port, 4943d249d4cSJiri Pirko struct sk_buff *skb) 4953d249d4cSJiri Pirko { 4963d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 4973d249d4cSJiri Pirko } 4983d249d4cSJiri Pirko 499d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 500d299cd51SJiri Pirko .kind = "*NOMODE*", 501d299cd51SJiri Pirko }; 502d299cd51SJiri Pirko 503d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 504d299cd51SJiri Pirko { 505d299cd51SJiri Pirko return team->mode != &__team_no_mode; 506d299cd51SJiri Pirko } 507d299cd51SJiri Pirko 508d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 509d299cd51SJiri Pirko { 510d299cd51SJiri Pirko team->mode = &__team_no_mode; 511d299cd51SJiri Pirko } 512d299cd51SJiri Pirko 513122bb046SJiri Pirko static void __team_adjust_ops(struct team *team, int en_port_count) 5143d249d4cSJiri Pirko { 5153d249d4cSJiri Pirko /* 5163d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5173d249d4cSJiri Pirko * correct ops are always set. 5183d249d4cSJiri Pirko */ 5193d249d4cSJiri Pirko 520122bb046SJiri Pirko if (!en_port_count || !team_is_mode_set(team) || 521122bb046SJiri Pirko !team->mode->ops->transmit) 5223d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5233d249d4cSJiri Pirko else 5243d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5253d249d4cSJiri Pirko 526122bb046SJiri Pirko if (!en_port_count || !team_is_mode_set(team) || 527122bb046SJiri Pirko !team->mode->ops->receive) 5283d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5293d249d4cSJiri Pirko else 5303d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5313d249d4cSJiri Pirko } 5323d249d4cSJiri Pirko 533122bb046SJiri Pirko static void team_adjust_ops(struct team *team) 534122bb046SJiri Pirko { 535122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count); 536122bb046SJiri Pirko } 537122bb046SJiri Pirko 5383d249d4cSJiri Pirko /* 5393d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5403d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5413d249d4cSJiri Pirko * need to set mode operations in any special way. 5423d249d4cSJiri Pirko */ 5433d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5443d249d4cSJiri Pirko const struct team_mode *new_mode) 5453d249d4cSJiri Pirko { 5463d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 547d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5483d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5493d249d4cSJiri Pirko 5503d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5513d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5523d249d4cSJiri Pirko team_adjust_ops(team); 5533d249d4cSJiri Pirko 5543d249d4cSJiri Pirko if (exit_op) 5553d249d4cSJiri Pirko exit_op(team); 5563d249d4cSJiri Pirko team_mode_put(team->mode); 557d299cd51SJiri Pirko team_set_no_mode(team); 5583d249d4cSJiri Pirko /* zero private data area */ 5593d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5603d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5613d249d4cSJiri Pirko } 5623d249d4cSJiri Pirko 5633d249d4cSJiri Pirko if (!new_mode) 5643d249d4cSJiri Pirko return 0; 5653d249d4cSJiri Pirko 5663d249d4cSJiri Pirko if (new_mode->ops->init) { 5673d249d4cSJiri Pirko int err; 5683d249d4cSJiri Pirko 5693d249d4cSJiri Pirko err = new_mode->ops->init(team); 5703d249d4cSJiri Pirko if (err) 5713d249d4cSJiri Pirko return err; 5723d249d4cSJiri Pirko } 5733d249d4cSJiri Pirko 5743d249d4cSJiri Pirko team->mode = new_mode; 5753d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5763d249d4cSJiri Pirko team_adjust_ops(team); 5773d249d4cSJiri Pirko 5783d249d4cSJiri Pirko return 0; 5793d249d4cSJiri Pirko } 5803d249d4cSJiri Pirko 5813d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5823d249d4cSJiri Pirko { 5830402788aSJiri Pirko const struct team_mode *new_mode; 5843d249d4cSJiri Pirko struct net_device *dev = team->dev; 5853d249d4cSJiri Pirko int err; 5863d249d4cSJiri Pirko 5873d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 5883d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 5893d249d4cSJiri Pirko return -EBUSY; 5903d249d4cSJiri Pirko } 5913d249d4cSJiri Pirko 592d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 5933d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 5943d249d4cSJiri Pirko return -EINVAL; 5953d249d4cSJiri Pirko } 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko new_mode = team_mode_get(kind); 5983d249d4cSJiri Pirko if (!new_mode) { 5993d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6003d249d4cSJiri Pirko return -EINVAL; 6013d249d4cSJiri Pirko } 6023d249d4cSJiri Pirko 6033d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6043d249d4cSJiri Pirko if (err) { 6053d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6063d249d4cSJiri Pirko team_mode_put(new_mode); 6073d249d4cSJiri Pirko return err; 6083d249d4cSJiri Pirko } 6093d249d4cSJiri Pirko 6103d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6113d249d4cSJiri Pirko return 0; 6123d249d4cSJiri Pirko } 6133d249d4cSJiri Pirko 6143d249d4cSJiri Pirko 6153d249d4cSJiri Pirko /************************ 6163d249d4cSJiri Pirko * Rx path frame handler 6173d249d4cSJiri Pirko ************************/ 6183d249d4cSJiri Pirko 6193d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 6203d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 6213d249d4cSJiri Pirko { 6223d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 6233d249d4cSJiri Pirko struct team_port *port; 6243d249d4cSJiri Pirko struct team *team; 6253d249d4cSJiri Pirko rx_handler_result_t res; 6263d249d4cSJiri Pirko 6273d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 6283d249d4cSJiri Pirko if (!skb) 6293d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 6303d249d4cSJiri Pirko 6313d249d4cSJiri Pirko *pskb = skb; 6323d249d4cSJiri Pirko 6333d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 6343d249d4cSJiri Pirko team = port->team; 63519a0b58eSJiri Pirko if (!team_port_enabled(port)) { 63619a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 63719a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 63819a0b58eSJiri Pirko } else { 6393d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 64019a0b58eSJiri Pirko } 6413d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 6423d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 6433d249d4cSJiri Pirko 6443d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 6453d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 6463d249d4cSJiri Pirko pcpu_stats->rx_packets++; 6473d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 6483d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 6493d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 6503d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 6513d249d4cSJiri Pirko 6523d249d4cSJiri Pirko skb->dev = team->dev; 6533d249d4cSJiri Pirko } else { 6543d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 6553d249d4cSJiri Pirko } 6563d249d4cSJiri Pirko 6573d249d4cSJiri Pirko return res; 6583d249d4cSJiri Pirko } 6593d249d4cSJiri Pirko 6603d249d4cSJiri Pirko 6613d249d4cSJiri Pirko /**************** 6623d249d4cSJiri Pirko * Port handling 6633d249d4cSJiri Pirko ****************/ 6643d249d4cSJiri Pirko 6653d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 6663d249d4cSJiri Pirko const struct team_port *port) 6673d249d4cSJiri Pirko { 6683d249d4cSJiri Pirko struct team_port *cur; 6693d249d4cSJiri Pirko 6703d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 6713d249d4cSJiri Pirko if (cur == port) 6723d249d4cSJiri Pirko return true; 6733d249d4cSJiri Pirko return false; 6743d249d4cSJiri Pirko } 6753d249d4cSJiri Pirko 6763d249d4cSJiri Pirko /* 67719a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 67819a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 67919a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 68019a0b58eSJiri Pirko * by team->lock. 6813d249d4cSJiri Pirko */ 68219a0b58eSJiri Pirko static void team_port_enable(struct team *team, 6833d249d4cSJiri Pirko struct team_port *port) 6843d249d4cSJiri Pirko { 68519a0b58eSJiri Pirko if (team_port_enabled(port)) 68619a0b58eSJiri Pirko return; 68719a0b58eSJiri Pirko port->index = team->en_port_count++; 6883d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 6893d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 690122bb046SJiri Pirko team_adjust_ops(team); 6914bccfd17SJiri Pirko if (team->ops.port_enabled) 6924bccfd17SJiri Pirko team->ops.port_enabled(team, port); 6933d249d4cSJiri Pirko } 6943d249d4cSJiri Pirko 6953d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 6963d249d4cSJiri Pirko { 6973d249d4cSJiri Pirko int i; 6983d249d4cSJiri Pirko struct team_port *port; 6993d249d4cSJiri Pirko 70019a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 7013d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 7023d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 7033d249d4cSJiri Pirko port->index--; 7043d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 7053d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 7063d249d4cSJiri Pirko } 7073d249d4cSJiri Pirko } 7083d249d4cSJiri Pirko 70919a0b58eSJiri Pirko static void team_port_disable(struct team *team, 7103d249d4cSJiri Pirko struct team_port *port) 7113d249d4cSJiri Pirko { 71219a0b58eSJiri Pirko if (!team_port_enabled(port)) 71319a0b58eSJiri Pirko return; 7144bccfd17SJiri Pirko if (team->ops.port_disabled) 7154bccfd17SJiri Pirko team->ops.port_disabled(team, port); 7163d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 717122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 71819a0b58eSJiri Pirko port->index = -1; 719122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count - 1); 720122bb046SJiri Pirko /* 721122bb046SJiri Pirko * Wait until readers see adjusted ops. This ensures that 722122bb046SJiri Pirko * readers never see team->en_port_count == 0 723122bb046SJiri Pirko */ 724122bb046SJiri Pirko synchronize_rcu(); 725122bb046SJiri Pirko team->en_port_count--; 7263d249d4cSJiri Pirko } 7273d249d4cSJiri Pirko 7283d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 7293d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 7303d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 7313d249d4cSJiri Pirko 7323d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 7333d249d4cSJiri Pirko { 7343d249d4cSJiri Pirko struct team_port *port; 7353d249d4cSJiri Pirko u32 vlan_features = TEAM_VLAN_FEATURES; 7363d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 737dc905951SJiri Pirko unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; 7383d249d4cSJiri Pirko 7393d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 7403d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 7413d249d4cSJiri Pirko port->dev->vlan_features, 7423d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 7433d249d4cSJiri Pirko 744dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 7453d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 7463d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 7473d249d4cSJiri Pirko } 7483d249d4cSJiri Pirko 7493d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 7503d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 7513d249d4cSJiri Pirko 752dc905951SJiri Pirko flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; 753dc905951SJiri Pirko team->dev->priv_flags = flags | dst_release_flag; 754dc905951SJiri Pirko 7553d249d4cSJiri Pirko netdev_change_features(team->dev); 7563d249d4cSJiri Pirko } 7573d249d4cSJiri Pirko 7583d249d4cSJiri Pirko static void team_compute_features(struct team *team) 7593d249d4cSJiri Pirko { 76061dc3461SJiri Pirko mutex_lock(&team->lock); 7613d249d4cSJiri Pirko __team_compute_features(team); 76261dc3461SJiri Pirko mutex_unlock(&team->lock); 7633d249d4cSJiri Pirko } 7643d249d4cSJiri Pirko 7653d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 7663d249d4cSJiri Pirko { 7673d249d4cSJiri Pirko int err = 0; 7683d249d4cSJiri Pirko 7693d249d4cSJiri Pirko dev_hold(team->dev); 7703d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 7713d249d4cSJiri Pirko if (team->ops.port_enter) { 7723d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 7733d249d4cSJiri Pirko if (err) { 7743d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 7753d249d4cSJiri Pirko port->dev->name); 7763d249d4cSJiri Pirko goto err_port_enter; 7773d249d4cSJiri Pirko } 7783d249d4cSJiri Pirko } 7793d249d4cSJiri Pirko 7803d249d4cSJiri Pirko return 0; 7813d249d4cSJiri Pirko 7823d249d4cSJiri Pirko err_port_enter: 7833d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7843d249d4cSJiri Pirko dev_put(team->dev); 7853d249d4cSJiri Pirko 7863d249d4cSJiri Pirko return err; 7873d249d4cSJiri Pirko } 7883d249d4cSJiri Pirko 7893d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 7903d249d4cSJiri Pirko { 7913d249d4cSJiri Pirko if (team->ops.port_leave) 7923d249d4cSJiri Pirko team->ops.port_leave(team, port); 7933d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7943d249d4cSJiri Pirko dev_put(team->dev); 7953d249d4cSJiri Pirko } 7963d249d4cSJiri Pirko 797bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 79847be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 79947be03a2SAmerigo Wang gfp_t gfp) 800bd2d0837SJiri Pirko { 801bd2d0837SJiri Pirko struct netpoll *np; 802bd2d0837SJiri Pirko int err; 803bd2d0837SJiri Pirko 80447be03a2SAmerigo Wang np = kzalloc(sizeof(*np), gfp); 805bd2d0837SJiri Pirko if (!np) 806bd2d0837SJiri Pirko return -ENOMEM; 807bd2d0837SJiri Pirko 80847be03a2SAmerigo Wang err = __netpoll_setup(np, port->dev, gfp); 809bd2d0837SJiri Pirko if (err) { 810bd2d0837SJiri Pirko kfree(np); 811bd2d0837SJiri Pirko return err; 812bd2d0837SJiri Pirko } 813bd2d0837SJiri Pirko port->np = np; 814bd2d0837SJiri Pirko return err; 815bd2d0837SJiri Pirko } 816bd2d0837SJiri Pirko 817bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 818bd2d0837SJiri Pirko { 819bd2d0837SJiri Pirko struct netpoll *np = port->np; 820bd2d0837SJiri Pirko 821bd2d0837SJiri Pirko if (!np) 822bd2d0837SJiri Pirko return; 823bd2d0837SJiri Pirko port->np = NULL; 824bd2d0837SJiri Pirko 825bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 826bd2d0837SJiri Pirko synchronize_rcu_bh(); 827bd2d0837SJiri Pirko __netpoll_cleanup(np); 828bd2d0837SJiri Pirko kfree(np); 829bd2d0837SJiri Pirko } 830bd2d0837SJiri Pirko 831bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 832bd2d0837SJiri Pirko { 833bd2d0837SJiri Pirko return team->dev->npinfo; 834bd2d0837SJiri Pirko } 835bd2d0837SJiri Pirko 836bd2d0837SJiri Pirko #else 83747be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 83847be03a2SAmerigo Wang gfp_t gfp) 839bd2d0837SJiri Pirko { 840bd2d0837SJiri Pirko return 0; 841bd2d0837SJiri Pirko } 842bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 843bd2d0837SJiri Pirko { 844bd2d0837SJiri Pirko } 845bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 846bd2d0837SJiri Pirko { 847bd2d0837SJiri Pirko return NULL; 848bd2d0837SJiri Pirko } 849bd2d0837SJiri Pirko #endif 850bd2d0837SJiri Pirko 8513d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup); 8523d249d4cSJiri Pirko 8533d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 8543d249d4cSJiri Pirko { 8553d249d4cSJiri Pirko struct net_device *dev = team->dev; 8563d249d4cSJiri Pirko struct team_port *port; 8573d249d4cSJiri Pirko char *portname = port_dev->name; 8583d249d4cSJiri Pirko int err; 8593d249d4cSJiri Pirko 8603d249d4cSJiri Pirko if (port_dev->flags & IFF_LOOPBACK || 8613d249d4cSJiri Pirko port_dev->type != ARPHRD_ETHER) { 8623d249d4cSJiri Pirko netdev_err(dev, "Device %s is of an unsupported type\n", 8633d249d4cSJiri Pirko portname); 8643d249d4cSJiri Pirko return -EINVAL; 8653d249d4cSJiri Pirko } 8663d249d4cSJiri Pirko 8673d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 8683d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 8693d249d4cSJiri Pirko "of a team device\n", portname); 8703d249d4cSJiri Pirko return -EBUSY; 8713d249d4cSJiri Pirko } 8723d249d4cSJiri Pirko 8733d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 8743d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 8753d249d4cSJiri Pirko portname); 8763d249d4cSJiri Pirko return -EBUSY; 8773d249d4cSJiri Pirko } 8783d249d4cSJiri Pirko 8795149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 8805149ee58SJiri Pirko GFP_KERNEL); 8813d249d4cSJiri Pirko if (!port) 8823d249d4cSJiri Pirko return -ENOMEM; 8833d249d4cSJiri Pirko 8843d249d4cSJiri Pirko port->dev = port_dev; 8853d249d4cSJiri Pirko port->team = team; 8863d249d4cSJiri Pirko 8873d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 8883d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 8893d249d4cSJiri Pirko if (err) { 8903d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 8913d249d4cSJiri Pirko goto err_set_mtu; 8923d249d4cSJiri Pirko } 8933d249d4cSJiri Pirko 8943d249d4cSJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN); 8953d249d4cSJiri Pirko 8963d249d4cSJiri Pirko err = team_port_enter(team, port); 8973d249d4cSJiri Pirko if (err) { 8983d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 8993d249d4cSJiri Pirko portname); 9003d249d4cSJiri Pirko goto err_port_enter; 9013d249d4cSJiri Pirko } 9023d249d4cSJiri Pirko 9033d249d4cSJiri Pirko err = dev_open(port_dev); 9043d249d4cSJiri Pirko if (err) { 9053d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 9063d249d4cSJiri Pirko portname); 9073d249d4cSJiri Pirko goto err_dev_open; 9083d249d4cSJiri Pirko } 9093d249d4cSJiri Pirko 91057459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 91157459185SJiri Pirko if (err) { 91257459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 91357459185SJiri Pirko portname); 91457459185SJiri Pirko goto err_vids_add; 91557459185SJiri Pirko } 91657459185SJiri Pirko 917bd2d0837SJiri Pirko if (team_netpoll_info(team)) { 91847be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, GFP_KERNEL); 919bd2d0837SJiri Pirko if (err) { 920bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 921bd2d0837SJiri Pirko portname); 922bd2d0837SJiri Pirko goto err_enable_netpoll; 923bd2d0837SJiri Pirko } 924bd2d0837SJiri Pirko } 925bd2d0837SJiri Pirko 9263d249d4cSJiri Pirko err = netdev_set_master(port_dev, dev); 9273d249d4cSJiri Pirko if (err) { 9283d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to set master\n", portname); 9293d249d4cSJiri Pirko goto err_set_master; 9303d249d4cSJiri Pirko } 9313d249d4cSJiri Pirko 9323d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 9333d249d4cSJiri Pirko port); 9343d249d4cSJiri Pirko if (err) { 9353d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 9363d249d4cSJiri Pirko portname); 9373d249d4cSJiri Pirko goto err_handler_register; 9383d249d4cSJiri Pirko } 9393d249d4cSJiri Pirko 94035b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 94180f7c668SJiri Pirko if (err) { 94280f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 94380f7c668SJiri Pirko portname); 94480f7c668SJiri Pirko goto err_option_port_add; 94580f7c668SJiri Pirko } 94680f7c668SJiri Pirko 94719a0b58eSJiri Pirko port->index = -1; 94819a0b58eSJiri Pirko team_port_enable(team, port); 94919a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 9503d249d4cSJiri Pirko __team_compute_features(team); 9513d249d4cSJiri Pirko __team_port_change_check(port, !!netif_carrier_ok(port_dev)); 95235b384bdSJiri Pirko __team_options_change_check(team); 9533d249d4cSJiri Pirko 9543d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 9553d249d4cSJiri Pirko 9563d249d4cSJiri Pirko return 0; 9573d249d4cSJiri Pirko 95880f7c668SJiri Pirko err_option_port_add: 95980f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 96080f7c668SJiri Pirko 9613d249d4cSJiri Pirko err_handler_register: 9623d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 9633d249d4cSJiri Pirko 9643d249d4cSJiri Pirko err_set_master: 965bd2d0837SJiri Pirko team_port_disable_netpoll(port); 966bd2d0837SJiri Pirko 967bd2d0837SJiri Pirko err_enable_netpoll: 96857459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 96957459185SJiri Pirko 97057459185SJiri Pirko err_vids_add: 9713d249d4cSJiri Pirko dev_close(port_dev); 9723d249d4cSJiri Pirko 9733d249d4cSJiri Pirko err_dev_open: 9743d249d4cSJiri Pirko team_port_leave(team, port); 9753d249d4cSJiri Pirko team_port_set_orig_mac(port); 9763d249d4cSJiri Pirko 9773d249d4cSJiri Pirko err_port_enter: 9783d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 9793d249d4cSJiri Pirko 9803d249d4cSJiri Pirko err_set_mtu: 9813d249d4cSJiri Pirko kfree(port); 9823d249d4cSJiri Pirko 9833d249d4cSJiri Pirko return err; 9843d249d4cSJiri Pirko } 9853d249d4cSJiri Pirko 9863d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 9873d249d4cSJiri Pirko { 9883d249d4cSJiri Pirko struct net_device *dev = team->dev; 9893d249d4cSJiri Pirko struct team_port *port; 9903d249d4cSJiri Pirko char *portname = port_dev->name; 9913d249d4cSJiri Pirko 9923d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 9933d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 9943d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 9953d249d4cSJiri Pirko portname); 9963d249d4cSJiri Pirko return -ENOENT; 9973d249d4cSJiri Pirko } 9983d249d4cSJiri Pirko 99935b384bdSJiri Pirko __team_option_inst_mark_removed_port(team, port); 100035b384bdSJiri Pirko __team_options_change_check(team); 100135b384bdSJiri Pirko __team_option_inst_del_port(team, port); 1002b82b9183SJiri Pirko port->removed = true; 10033d249d4cSJiri Pirko __team_port_change_check(port, false); 100419a0b58eSJiri Pirko team_port_disable(team, port); 100519a0b58eSJiri Pirko list_del_rcu(&port->list); 10063d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 10073d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 1008bd2d0837SJiri Pirko team_port_disable_netpoll(port); 100957459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 10103d249d4cSJiri Pirko dev_close(port_dev); 10113d249d4cSJiri Pirko team_port_leave(team, port); 10123d249d4cSJiri Pirko team_port_set_orig_mac(port); 10133d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 10143d249d4cSJiri Pirko synchronize_rcu(); 10153d249d4cSJiri Pirko kfree(port); 10163d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 10173d249d4cSJiri Pirko __team_compute_features(team); 10183d249d4cSJiri Pirko 10193d249d4cSJiri Pirko return 0; 10203d249d4cSJiri Pirko } 10213d249d4cSJiri Pirko 10223d249d4cSJiri Pirko 10233d249d4cSJiri Pirko /***************** 10243d249d4cSJiri Pirko * Net device ops 10253d249d4cSJiri Pirko *****************/ 10263d249d4cSJiri Pirko 102780f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 10283d249d4cSJiri Pirko { 1029d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 10303d249d4cSJiri Pirko return 0; 10313d249d4cSJiri Pirko } 10323d249d4cSJiri Pirko 103380f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 10343d249d4cSJiri Pirko { 103580f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 10363d249d4cSJiri Pirko } 10373d249d4cSJiri Pirko 1038acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1039acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1040acd69962SJiri Pirko { 104185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 104285d59a87SJiri Pirko 104385d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1044acd69962SJiri Pirko return 0; 1045acd69962SJiri Pirko } 1046acd69962SJiri Pirko 1047acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1048acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1049acd69962SJiri Pirko { 105085d59a87SJiri Pirko struct team_port *port = ctx->info->port; 105185d59a87SJiri Pirko 1052acd69962SJiri Pirko if (ctx->data.bool_val) 105385d59a87SJiri Pirko team_port_enable(team, port); 1054acd69962SJiri Pirko else 105585d59a87SJiri Pirko team_port_disable(team, port); 1056acd69962SJiri Pirko return 0; 1057acd69962SJiri Pirko } 1058acd69962SJiri Pirko 105971472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 106071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 106171472ec1SJiri Pirko { 106285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 106385d59a87SJiri Pirko 106485d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 106571472ec1SJiri Pirko return 0; 106671472ec1SJiri Pirko } 106771472ec1SJiri Pirko 106871472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 106971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 107071472ec1SJiri Pirko { 107185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 107285d59a87SJiri Pirko 107385d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 107485d59a87SJiri Pirko team_refresh_port_linkup(port); 107571472ec1SJiri Pirko return 0; 107671472ec1SJiri Pirko } 107771472ec1SJiri Pirko 107871472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 107971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 108071472ec1SJiri Pirko { 108185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 108271472ec1SJiri Pirko 108371472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 108471472ec1SJiri Pirko return 0; 108571472ec1SJiri Pirko } 108671472ec1SJiri Pirko 108771472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 108871472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 108971472ec1SJiri Pirko { 109085d59a87SJiri Pirko struct team_port *port = ctx->info->port; 109171472ec1SJiri Pirko 109271472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 109385d59a87SJiri Pirko team_refresh_port_linkup(port); 109471472ec1SJiri Pirko return 0; 109571472ec1SJiri Pirko } 109671472ec1SJiri Pirko 1097358b8382SJiri Pirko static const struct team_option team_options[] = { 10983d249d4cSJiri Pirko { 10993d249d4cSJiri Pirko .name = "mode", 11003d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 11013d249d4cSJiri Pirko .getter = team_mode_option_get, 11023d249d4cSJiri Pirko .setter = team_mode_option_set, 11033d249d4cSJiri Pirko }, 110471472ec1SJiri Pirko { 1105acd69962SJiri Pirko .name = "enabled", 1106acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1107acd69962SJiri Pirko .per_port = true, 1108acd69962SJiri Pirko .getter = team_port_en_option_get, 1109acd69962SJiri Pirko .setter = team_port_en_option_set, 1110acd69962SJiri Pirko }, 1111acd69962SJiri Pirko { 111271472ec1SJiri Pirko .name = "user_linkup", 111371472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 111471472ec1SJiri Pirko .per_port = true, 111571472ec1SJiri Pirko .getter = team_user_linkup_option_get, 111671472ec1SJiri Pirko .setter = team_user_linkup_option_set, 111771472ec1SJiri Pirko }, 111871472ec1SJiri Pirko { 111971472ec1SJiri Pirko .name = "user_linkup_enabled", 112071472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 112171472ec1SJiri Pirko .per_port = true, 112271472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 112371472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 112471472ec1SJiri Pirko }, 11253d249d4cSJiri Pirko }; 11263d249d4cSJiri Pirko 11276c85f2bdSJiri Pirko static struct lock_class_key team_netdev_xmit_lock_key; 11286c85f2bdSJiri Pirko static struct lock_class_key team_netdev_addr_lock_key; 11296c85f2bdSJiri Pirko 11306c85f2bdSJiri Pirko static void team_set_lockdep_class_one(struct net_device *dev, 11316c85f2bdSJiri Pirko struct netdev_queue *txq, 11326c85f2bdSJiri Pirko void *unused) 11336c85f2bdSJiri Pirko { 11346c85f2bdSJiri Pirko lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); 11356c85f2bdSJiri Pirko } 11366c85f2bdSJiri Pirko 11376c85f2bdSJiri Pirko static void team_set_lockdep_class(struct net_device *dev) 11386c85f2bdSJiri Pirko { 11396c85f2bdSJiri Pirko lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); 11406c85f2bdSJiri Pirko netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); 11416c85f2bdSJiri Pirko } 11426c85f2bdSJiri Pirko 11433d249d4cSJiri Pirko static int team_init(struct net_device *dev) 11443d249d4cSJiri Pirko { 11453d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11463d249d4cSJiri Pirko int i; 1147358b8382SJiri Pirko int err; 11483d249d4cSJiri Pirko 11493d249d4cSJiri Pirko team->dev = dev; 115061dc3461SJiri Pirko mutex_init(&team->lock); 1151d299cd51SJiri Pirko team_set_no_mode(team); 11523d249d4cSJiri Pirko 11533d249d4cSJiri Pirko team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); 11543d249d4cSJiri Pirko if (!team->pcpu_stats) 11553d249d4cSJiri Pirko return -ENOMEM; 11563d249d4cSJiri Pirko 11573d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 115819a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 11593d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 11603d249d4cSJiri Pirko 11613d249d4cSJiri Pirko team_adjust_ops(team); 11623d249d4cSJiri Pirko 11633d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 116480f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1165358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1166358b8382SJiri Pirko if (err) 1167358b8382SJiri Pirko goto err_options_register; 11683d249d4cSJiri Pirko netif_carrier_off(dev); 11693d249d4cSJiri Pirko 11706c85f2bdSJiri Pirko team_set_lockdep_class(dev); 11716c85f2bdSJiri Pirko 11723d249d4cSJiri Pirko return 0; 1173358b8382SJiri Pirko 1174358b8382SJiri Pirko err_options_register: 1175358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1176358b8382SJiri Pirko 1177358b8382SJiri Pirko return err; 11783d249d4cSJiri Pirko } 11793d249d4cSJiri Pirko 11803d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 11813d249d4cSJiri Pirko { 11823d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11833d249d4cSJiri Pirko struct team_port *port; 11843d249d4cSJiri Pirko struct team_port *tmp; 11853d249d4cSJiri Pirko 118661dc3461SJiri Pirko mutex_lock(&team->lock); 11873d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 11883d249d4cSJiri Pirko team_port_del(team, port->dev); 11893d249d4cSJiri Pirko 11903d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 11913d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 119261dc3461SJiri Pirko mutex_unlock(&team->lock); 11933d249d4cSJiri Pirko } 11943d249d4cSJiri Pirko 11953d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 11963d249d4cSJiri Pirko { 11973d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11983d249d4cSJiri Pirko 11993d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 12003d249d4cSJiri Pirko free_netdev(dev); 12013d249d4cSJiri Pirko } 12023d249d4cSJiri Pirko 12033d249d4cSJiri Pirko static int team_open(struct net_device *dev) 12043d249d4cSJiri Pirko { 12053d249d4cSJiri Pirko netif_carrier_on(dev); 12063d249d4cSJiri Pirko return 0; 12073d249d4cSJiri Pirko } 12083d249d4cSJiri Pirko 12093d249d4cSJiri Pirko static int team_close(struct net_device *dev) 12103d249d4cSJiri Pirko { 12113d249d4cSJiri Pirko netif_carrier_off(dev); 12123d249d4cSJiri Pirko return 0; 12133d249d4cSJiri Pirko } 12143d249d4cSJiri Pirko 12153d249d4cSJiri Pirko /* 12163d249d4cSJiri Pirko * note: already called with rcu_read_lock 12173d249d4cSJiri Pirko */ 12183d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 12193d249d4cSJiri Pirko { 12203d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12213d249d4cSJiri Pirko bool tx_success = false; 12223d249d4cSJiri Pirko unsigned int len = skb->len; 12233d249d4cSJiri Pirko 12243d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 12253d249d4cSJiri Pirko if (tx_success) { 12263d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 12273d249d4cSJiri Pirko 12283d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 12293d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 12303d249d4cSJiri Pirko pcpu_stats->tx_packets++; 12313d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 12323d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 12333d249d4cSJiri Pirko } else { 12343d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 12353d249d4cSJiri Pirko } 12363d249d4cSJiri Pirko 12373d249d4cSJiri Pirko return NETDEV_TX_OK; 12383d249d4cSJiri Pirko } 12393d249d4cSJiri Pirko 12406c85f2bdSJiri Pirko static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) 12416c85f2bdSJiri Pirko { 12426c85f2bdSJiri Pirko /* 12436c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 12446c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 12456c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 12466c85f2bdSJiri Pirko * way down to the team driver. 12476c85f2bdSJiri Pirko */ 12486c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 12496c85f2bdSJiri Pirko 12506c85f2bdSJiri Pirko /* 12516c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 12526c85f2bdSJiri Pirko */ 12536c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 12546c85f2bdSJiri Pirko 12556c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 12566c85f2bdSJiri Pirko do { 12576c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 12586c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 12596c85f2bdSJiri Pirko } 12606c85f2bdSJiri Pirko return txq; 12616c85f2bdSJiri Pirko } 12626c85f2bdSJiri Pirko 12633d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 12643d249d4cSJiri Pirko { 12653d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12663d249d4cSJiri Pirko struct team_port *port; 12673d249d4cSJiri Pirko int inc; 12683d249d4cSJiri Pirko 12693d249d4cSJiri Pirko rcu_read_lock(); 12703d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 12713d249d4cSJiri Pirko if (change & IFF_PROMISC) { 12723d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 12733d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 12743d249d4cSJiri Pirko } 12753d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 12763d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 12773d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 12783d249d4cSJiri Pirko } 12793d249d4cSJiri Pirko } 12803d249d4cSJiri Pirko rcu_read_unlock(); 12813d249d4cSJiri Pirko } 12823d249d4cSJiri Pirko 12833d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 12843d249d4cSJiri Pirko { 12853d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12863d249d4cSJiri Pirko struct team_port *port; 12873d249d4cSJiri Pirko 12883d249d4cSJiri Pirko rcu_read_lock(); 12893d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 12903d249d4cSJiri Pirko dev_uc_sync(port->dev, dev); 12913d249d4cSJiri Pirko dev_mc_sync(port->dev, dev); 12923d249d4cSJiri Pirko } 12933d249d4cSJiri Pirko rcu_read_unlock(); 12943d249d4cSJiri Pirko } 12953d249d4cSJiri Pirko 12963d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 12973d249d4cSJiri Pirko { 12983d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12993d249d4cSJiri Pirko struct team_port *port; 13005a1d1c8cSJiri Pirko int err; 13013d249d4cSJiri Pirko 13025a1d1c8cSJiri Pirko err = eth_mac_addr(dev, p); 13035a1d1c8cSJiri Pirko if (err) 13045a1d1c8cSJiri Pirko return err; 13053d249d4cSJiri Pirko rcu_read_lock(); 13063d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 13073d249d4cSJiri Pirko if (team->ops.port_change_mac) 13083d249d4cSJiri Pirko team->ops.port_change_mac(team, port); 13093d249d4cSJiri Pirko rcu_read_unlock(); 13103d249d4cSJiri Pirko return 0; 13113d249d4cSJiri Pirko } 13123d249d4cSJiri Pirko 13133d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 13143d249d4cSJiri Pirko { 13153d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13163d249d4cSJiri Pirko struct team_port *port; 13173d249d4cSJiri Pirko int err; 13183d249d4cSJiri Pirko 13193d249d4cSJiri Pirko /* 13203d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 13213d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 13223d249d4cSJiri Pirko */ 132361dc3461SJiri Pirko mutex_lock(&team->lock); 13243d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 13253d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 13263d249d4cSJiri Pirko if (err) { 13273d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 13283d249d4cSJiri Pirko port->dev->name); 13293d249d4cSJiri Pirko goto unwind; 13303d249d4cSJiri Pirko } 13313d249d4cSJiri Pirko } 133261dc3461SJiri Pirko mutex_unlock(&team->lock); 13333d249d4cSJiri Pirko 13343d249d4cSJiri Pirko dev->mtu = new_mtu; 13353d249d4cSJiri Pirko 13363d249d4cSJiri Pirko return 0; 13373d249d4cSJiri Pirko 13383d249d4cSJiri Pirko unwind: 13393d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 13403d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 134161dc3461SJiri Pirko mutex_unlock(&team->lock); 13423d249d4cSJiri Pirko 13433d249d4cSJiri Pirko return err; 13443d249d4cSJiri Pirko } 13453d249d4cSJiri Pirko 13463d249d4cSJiri Pirko static struct rtnl_link_stats64 * 13473d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 13483d249d4cSJiri Pirko { 13493d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13503d249d4cSJiri Pirko struct team_pcpu_stats *p; 13513d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 13523d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 13533d249d4cSJiri Pirko unsigned int start; 13543d249d4cSJiri Pirko int i; 13553d249d4cSJiri Pirko 13563d249d4cSJiri Pirko for_each_possible_cpu(i) { 13573d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 13583d249d4cSJiri Pirko do { 13593d249d4cSJiri Pirko start = u64_stats_fetch_begin_bh(&p->syncp); 13603d249d4cSJiri Pirko rx_packets = p->rx_packets; 13613d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 13623d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 13633d249d4cSJiri Pirko tx_packets = p->tx_packets; 13643d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 13653d249d4cSJiri Pirko } while (u64_stats_fetch_retry_bh(&p->syncp, start)); 13663d249d4cSJiri Pirko 13673d249d4cSJiri Pirko stats->rx_packets += rx_packets; 13683d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 13693d249d4cSJiri Pirko stats->multicast += rx_multicast; 13703d249d4cSJiri Pirko stats->tx_packets += tx_packets; 13713d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 13723d249d4cSJiri Pirko /* 13733d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 13743d249d4cSJiri Pirko * without syncp protection. 13753d249d4cSJiri Pirko */ 13763d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 13773d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 13783d249d4cSJiri Pirko } 13793d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 13803d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 13813d249d4cSJiri Pirko return stats; 13823d249d4cSJiri Pirko } 13833d249d4cSJiri Pirko 13848e586137SJiri Pirko static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) 13853d249d4cSJiri Pirko { 13863d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13873d249d4cSJiri Pirko struct team_port *port; 138887002b03SJiri Pirko int err; 13893d249d4cSJiri Pirko 139087002b03SJiri Pirko /* 139187002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 139287002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 139387002b03SJiri Pirko */ 139487002b03SJiri Pirko mutex_lock(&team->lock); 139587002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 139687002b03SJiri Pirko err = vlan_vid_add(port->dev, vid); 139787002b03SJiri Pirko if (err) 139887002b03SJiri Pirko goto unwind; 13993d249d4cSJiri Pirko } 140087002b03SJiri Pirko mutex_unlock(&team->lock); 14018e586137SJiri Pirko 14028e586137SJiri Pirko return 0; 140387002b03SJiri Pirko 140487002b03SJiri Pirko unwind: 140587002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 140687002b03SJiri Pirko vlan_vid_del(port->dev, vid); 140787002b03SJiri Pirko mutex_unlock(&team->lock); 140887002b03SJiri Pirko 140987002b03SJiri Pirko return err; 14103d249d4cSJiri Pirko } 14113d249d4cSJiri Pirko 14128e586137SJiri Pirko static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) 14133d249d4cSJiri Pirko { 14143d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14153d249d4cSJiri Pirko struct team_port *port; 14163d249d4cSJiri Pirko 14173d249d4cSJiri Pirko rcu_read_lock(); 141887002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 141987002b03SJiri Pirko vlan_vid_del(port->dev, vid); 14203d249d4cSJiri Pirko rcu_read_unlock(); 14218e586137SJiri Pirko 14228e586137SJiri Pirko return 0; 14233d249d4cSJiri Pirko } 14243d249d4cSJiri Pirko 1425bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1426bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1427bd2d0837SJiri Pirko { 1428bd2d0837SJiri Pirko } 1429bd2d0837SJiri Pirko 1430bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1431bd2d0837SJiri Pirko { 1432bd2d0837SJiri Pirko struct team_port *port; 1433bd2d0837SJiri Pirko 1434bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1435bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1436bd2d0837SJiri Pirko } 1437bd2d0837SJiri Pirko 1438bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1439bd2d0837SJiri Pirko { 1440bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1441bd2d0837SJiri Pirko 1442bd2d0837SJiri Pirko mutex_lock(&team->lock); 1443bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1444bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1445bd2d0837SJiri Pirko } 1446bd2d0837SJiri Pirko 1447bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 144847be03a2SAmerigo Wang struct netpoll_info *npifo, gfp_t gfp) 1449bd2d0837SJiri Pirko { 1450bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1451bd2d0837SJiri Pirko struct team_port *port; 14523324d024SJiri Pirko int err = 0; 1453bd2d0837SJiri Pirko 1454bd2d0837SJiri Pirko mutex_lock(&team->lock); 1455bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 145647be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, gfp); 1457bd2d0837SJiri Pirko if (err) { 1458bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1459bd2d0837SJiri Pirko break; 1460bd2d0837SJiri Pirko } 1461bd2d0837SJiri Pirko } 1462bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1463bd2d0837SJiri Pirko return err; 1464bd2d0837SJiri Pirko } 1465bd2d0837SJiri Pirko #endif 1466bd2d0837SJiri Pirko 14673d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 14683d249d4cSJiri Pirko { 14693d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14703d249d4cSJiri Pirko int err; 14713d249d4cSJiri Pirko 147261dc3461SJiri Pirko mutex_lock(&team->lock); 14733d249d4cSJiri Pirko err = team_port_add(team, port_dev); 147461dc3461SJiri Pirko mutex_unlock(&team->lock); 14753d249d4cSJiri Pirko return err; 14763d249d4cSJiri Pirko } 14773d249d4cSJiri Pirko 14783d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 14793d249d4cSJiri Pirko { 14803d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14813d249d4cSJiri Pirko int err; 14823d249d4cSJiri Pirko 148361dc3461SJiri Pirko mutex_lock(&team->lock); 14843d249d4cSJiri Pirko err = team_port_del(team, port_dev); 148561dc3461SJiri Pirko mutex_unlock(&team->lock); 14863d249d4cSJiri Pirko return err; 14873d249d4cSJiri Pirko } 14883d249d4cSJiri Pirko 1489234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1490234a8fd4SJiri Pirko netdev_features_t features) 1491234a8fd4SJiri Pirko { 1492234a8fd4SJiri Pirko struct team_port *port; 1493234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1494234a8fd4SJiri Pirko netdev_features_t mask; 1495234a8fd4SJiri Pirko 1496234a8fd4SJiri Pirko mask = features; 1497234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1498234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1499234a8fd4SJiri Pirko 1500234a8fd4SJiri Pirko rcu_read_lock(); 1501234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1502234a8fd4SJiri Pirko features = netdev_increment_features(features, 1503234a8fd4SJiri Pirko port->dev->features, 1504234a8fd4SJiri Pirko mask); 1505234a8fd4SJiri Pirko } 1506234a8fd4SJiri Pirko rcu_read_unlock(); 1507234a8fd4SJiri Pirko return features; 1508234a8fd4SJiri Pirko } 1509234a8fd4SJiri Pirko 15103d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 15113d249d4cSJiri Pirko .ndo_init = team_init, 15123d249d4cSJiri Pirko .ndo_uninit = team_uninit, 15133d249d4cSJiri Pirko .ndo_open = team_open, 15143d249d4cSJiri Pirko .ndo_stop = team_close, 15153d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 15166c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 15173d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 15183d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 15193d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 15203d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 15213d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 15223d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 15233d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 1524bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1525bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 1526bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 1527bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 1528bd2d0837SJiri Pirko #endif 15293d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 15303d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1531234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 15323d249d4cSJiri Pirko }; 15333d249d4cSJiri Pirko 15343d249d4cSJiri Pirko 15353d249d4cSJiri Pirko /*********************** 15363d249d4cSJiri Pirko * rt netlink interface 15373d249d4cSJiri Pirko ***********************/ 15383d249d4cSJiri Pirko 15393d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 15403d249d4cSJiri Pirko { 15413d249d4cSJiri Pirko ether_setup(dev); 15423d249d4cSJiri Pirko 15433d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 15443d249d4cSJiri Pirko dev->destructor = team_destructor; 15453d249d4cSJiri Pirko dev->tx_queue_len = 0; 15463d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 15473d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 15483d249d4cSJiri Pirko 15493d249d4cSJiri Pirko /* 15503d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 15513d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 15523d249d4cSJiri Pirko * Let this up to underlay drivers. 15533d249d4cSJiri Pirko */ 15545a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 15553d249d4cSJiri Pirko 15563d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 15573d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 15583d249d4cSJiri Pirko dev->hw_features = NETIF_F_HW_VLAN_TX | 15593d249d4cSJiri Pirko NETIF_F_HW_VLAN_RX | 15603d249d4cSJiri Pirko NETIF_F_HW_VLAN_FILTER; 15613d249d4cSJiri Pirko 15623d249d4cSJiri Pirko dev->features |= dev->hw_features; 15633d249d4cSJiri Pirko } 15643d249d4cSJiri Pirko 15653d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 15663d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 15673d249d4cSJiri Pirko { 15683d249d4cSJiri Pirko int err; 15693d249d4cSJiri Pirko 15703d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 15717ce5d222SDanny Kukawka eth_hw_addr_random(dev); 15723d249d4cSJiri Pirko 15733d249d4cSJiri Pirko err = register_netdevice(dev); 15743d249d4cSJiri Pirko if (err) 15753d249d4cSJiri Pirko return err; 15763d249d4cSJiri Pirko 15773d249d4cSJiri Pirko return 0; 15783d249d4cSJiri Pirko } 15793d249d4cSJiri Pirko 15803d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 15813d249d4cSJiri Pirko { 15823d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 15833d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 15843d249d4cSJiri Pirko return -EINVAL; 15853d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 15863d249d4cSJiri Pirko return -EADDRNOTAVAIL; 15873d249d4cSJiri Pirko } 15883d249d4cSJiri Pirko return 0; 15893d249d4cSJiri Pirko } 15903d249d4cSJiri Pirko 15916c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 15926c85f2bdSJiri Pirko { 15936c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 15946c85f2bdSJiri Pirko } 15956c85f2bdSJiri Pirko 15966c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 15976c85f2bdSJiri Pirko { 15986c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 15996c85f2bdSJiri Pirko } 16006c85f2bdSJiri Pirko 16013d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 16023d249d4cSJiri Pirko .kind = DRV_NAME, 16033d249d4cSJiri Pirko .priv_size = sizeof(struct team), 16043d249d4cSJiri Pirko .setup = team_setup, 16053d249d4cSJiri Pirko .newlink = team_newlink, 16063d249d4cSJiri Pirko .validate = team_validate, 16076c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 16086c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 16093d249d4cSJiri Pirko }; 16103d249d4cSJiri Pirko 16113d249d4cSJiri Pirko 16123d249d4cSJiri Pirko /*********************************** 16133d249d4cSJiri Pirko * Generic netlink custom interface 16143d249d4cSJiri Pirko ***********************************/ 16153d249d4cSJiri Pirko 16163d249d4cSJiri Pirko static struct genl_family team_nl_family = { 16173d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 16183d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 16193d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 16203d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 16213d249d4cSJiri Pirko .netnsok = true, 16223d249d4cSJiri Pirko }; 16233d249d4cSJiri Pirko 16243d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 16253d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 16263d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 16273d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 16283d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 16293d249d4cSJiri Pirko }; 16303d249d4cSJiri Pirko 16313d249d4cSJiri Pirko static const struct nla_policy 16323d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 16333d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 16343d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 16353d249d4cSJiri Pirko .type = NLA_STRING, 16363d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 16373d249d4cSJiri Pirko }, 16383d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 16393d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 16402615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 16413d249d4cSJiri Pirko }; 16423d249d4cSJiri Pirko 16433d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 16443d249d4cSJiri Pirko { 16453d249d4cSJiri Pirko struct sk_buff *msg; 16463d249d4cSJiri Pirko void *hdr; 16473d249d4cSJiri Pirko int err; 16483d249d4cSJiri Pirko 164958050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 16503d249d4cSJiri Pirko if (!msg) 16513d249d4cSJiri Pirko return -ENOMEM; 16523d249d4cSJiri Pirko 16533d249d4cSJiri Pirko hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, 16543d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 16553d249d4cSJiri Pirko if (IS_ERR(hdr)) { 16563d249d4cSJiri Pirko err = PTR_ERR(hdr); 16573d249d4cSJiri Pirko goto err_msg_put; 16583d249d4cSJiri Pirko } 16593d249d4cSJiri Pirko 16603d249d4cSJiri Pirko genlmsg_end(msg, hdr); 16613d249d4cSJiri Pirko 16623d249d4cSJiri Pirko return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); 16633d249d4cSJiri Pirko 16643d249d4cSJiri Pirko err_msg_put: 16653d249d4cSJiri Pirko nlmsg_free(msg); 16663d249d4cSJiri Pirko 16673d249d4cSJiri Pirko return err; 16683d249d4cSJiri Pirko } 16693d249d4cSJiri Pirko 16703d249d4cSJiri Pirko /* 16713d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 16728c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 16733d249d4cSJiri Pirko */ 16743d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 16753d249d4cSJiri Pirko { 16763d249d4cSJiri Pirko struct net *net = genl_info_net(info); 16773d249d4cSJiri Pirko int ifindex; 16783d249d4cSJiri Pirko struct net_device *dev; 16793d249d4cSJiri Pirko struct team *team; 16803d249d4cSJiri Pirko 16813d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 16823d249d4cSJiri Pirko return NULL; 16833d249d4cSJiri Pirko 16843d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 16858c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 16863d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 16878c0713a5SJiri Pirko if (dev) 16888c0713a5SJiri Pirko dev_put(dev); 16893d249d4cSJiri Pirko return NULL; 16903d249d4cSJiri Pirko } 16913d249d4cSJiri Pirko 16923d249d4cSJiri Pirko team = netdev_priv(dev); 169361dc3461SJiri Pirko mutex_lock(&team->lock); 16943d249d4cSJiri Pirko return team; 16953d249d4cSJiri Pirko } 16963d249d4cSJiri Pirko 16973d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 16983d249d4cSJiri Pirko { 169961dc3461SJiri Pirko mutex_unlock(&team->lock); 17008c0713a5SJiri Pirko dev_put(team->dev); 17013d249d4cSJiri Pirko } 17023d249d4cSJiri Pirko 17033d249d4cSJiri Pirko static int team_nl_send_generic(struct genl_info *info, struct team *team, 17043d249d4cSJiri Pirko int (*fill_func)(struct sk_buff *skb, 17053d249d4cSJiri Pirko struct genl_info *info, 17063d249d4cSJiri Pirko int flags, struct team *team)) 17073d249d4cSJiri Pirko { 17083d249d4cSJiri Pirko struct sk_buff *skb; 17093d249d4cSJiri Pirko int err; 17103d249d4cSJiri Pirko 171158050fceSThomas Graf skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 17123d249d4cSJiri Pirko if (!skb) 17133d249d4cSJiri Pirko return -ENOMEM; 17143d249d4cSJiri Pirko 17153d249d4cSJiri Pirko err = fill_func(skb, info, NLM_F_ACK, team); 17163d249d4cSJiri Pirko if (err < 0) 17173d249d4cSJiri Pirko goto err_fill; 17183d249d4cSJiri Pirko 17193d249d4cSJiri Pirko err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); 17203d249d4cSJiri Pirko return err; 17213d249d4cSJiri Pirko 17223d249d4cSJiri Pirko err_fill: 17233d249d4cSJiri Pirko nlmsg_free(skb); 17243d249d4cSJiri Pirko return err; 17253d249d4cSJiri Pirko } 17263d249d4cSJiri Pirko 17279b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 17289b00cf2dSJiri Pirko struct team *team, u32 pid); 17299b00cf2dSJiri Pirko 17309b00cf2dSJiri Pirko static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 pid) 17319b00cf2dSJiri Pirko { 17329b00cf2dSJiri Pirko return genlmsg_unicast(dev_net(team->dev), skb, pid); 17339b00cf2dSJiri Pirko } 17349b00cf2dSJiri Pirko 173501048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 173601048d9aSJiri Pirko struct team_option_inst *opt_inst) 17373d249d4cSJiri Pirko { 17383d249d4cSJiri Pirko struct nlattr *option_item; 173980f7c668SJiri Pirko struct team_option *option = opt_inst->option; 17409b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 174180f7c668SJiri Pirko struct team_gsetter_ctx ctx; 174201048d9aSJiri Pirko int err; 17433d249d4cSJiri Pirko 17449b00cf2dSJiri Pirko ctx.info = opt_inst_info; 17459b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 17469b00cf2dSJiri Pirko if (err) 17479b00cf2dSJiri Pirko return err; 17489b00cf2dSJiri Pirko 17493d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 17503d249d4cSJiri Pirko if (!option_item) 17519b00cf2dSJiri Pirko return -EMSGSIZE; 175285d59a87SJiri Pirko 17539b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 17549b00cf2dSJiri Pirko goto nest_cancel; 175585d59a87SJiri Pirko if (opt_inst_info->port && 175680f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 175785d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 17589b00cf2dSJiri Pirko goto nest_cancel; 1759b1303326SJiri Pirko if (opt_inst->option->array_size && 1760b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 176185d59a87SJiri Pirko opt_inst_info->array_index)) 17629b00cf2dSJiri Pirko goto nest_cancel; 176385d59a87SJiri Pirko 17643d249d4cSJiri Pirko switch (option->type) { 17653d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 176686ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 17679b00cf2dSJiri Pirko goto nest_cancel; 176801048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 17699b00cf2dSJiri Pirko goto nest_cancel; 17703d249d4cSJiri Pirko break; 17713d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 177286ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 17739b00cf2dSJiri Pirko goto nest_cancel; 177486ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 177580f7c668SJiri Pirko ctx.data.str_val)) 17769b00cf2dSJiri Pirko goto nest_cancel; 17773d249d4cSJiri Pirko break; 17782615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 17792615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 17809b00cf2dSJiri Pirko goto nest_cancel; 178101048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 178201048d9aSJiri Pirko ctx.data.bin_val.ptr)) 17839b00cf2dSJiri Pirko goto nest_cancel; 17842615598fSJiri Pirko break; 178514f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 178614f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 17879b00cf2dSJiri Pirko goto nest_cancel; 178814f066baSJiri Pirko if (ctx.data.bool_val && 178914f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 17909b00cf2dSJiri Pirko goto nest_cancel; 179114f066baSJiri Pirko break; 17923d249d4cSJiri Pirko default: 17933d249d4cSJiri Pirko BUG(); 17943d249d4cSJiri Pirko } 17959b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 17969b00cf2dSJiri Pirko goto nest_cancel; 17979b00cf2dSJiri Pirko if (opt_inst->changed) { 17989b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 17999b00cf2dSJiri Pirko goto nest_cancel; 18009b00cf2dSJiri Pirko opt_inst->changed = false; 18019b00cf2dSJiri Pirko } 18023d249d4cSJiri Pirko nla_nest_end(skb, option_item); 180301048d9aSJiri Pirko return 0; 180401048d9aSJiri Pirko 18059b00cf2dSJiri Pirko nest_cancel: 18069b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 18079b00cf2dSJiri Pirko return -EMSGSIZE; 180801048d9aSJiri Pirko } 180901048d9aSJiri Pirko 18109b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 18119b00cf2dSJiri Pirko struct team *team, u32 pid, 18129b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 18139b00cf2dSJiri Pirko { 18149b00cf2dSJiri Pirko int err; 18159b00cf2dSJiri Pirko 18169b00cf2dSJiri Pirko if (*pskb) { 18179b00cf2dSJiri Pirko err = send_func(*pskb, team, pid); 18189b00cf2dSJiri Pirko if (err) 18199b00cf2dSJiri Pirko return err; 18209b00cf2dSJiri Pirko } 182158050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 18229b00cf2dSJiri Pirko if (!*pskb) 18239b00cf2dSJiri Pirko return -ENOMEM; 18249b00cf2dSJiri Pirko return 0; 18259b00cf2dSJiri Pirko } 18269b00cf2dSJiri Pirko 18279b00cf2dSJiri Pirko static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq, 18289b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 182901048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 183001048d9aSJiri Pirko { 183101048d9aSJiri Pirko struct nlattr *option_list; 18329b00cf2dSJiri Pirko struct nlmsghdr *nlh; 183301048d9aSJiri Pirko void *hdr; 183401048d9aSJiri Pirko struct team_option_inst *opt_inst; 183501048d9aSJiri Pirko int err; 18369b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 18379b00cf2dSJiri Pirko bool incomplete; 18389b00cf2dSJiri Pirko int i; 183901048d9aSJiri Pirko 18409b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 18419b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 18429b00cf2dSJiri Pirko 18439b00cf2dSJiri Pirko start_again: 18449b00cf2dSJiri Pirko err = __send_and_alloc_skb(&skb, team, pid, send_func); 18459b00cf2dSJiri Pirko if (err) 18469b00cf2dSJiri Pirko return err; 18479b00cf2dSJiri Pirko 18489b00cf2dSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI, 184901048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 185001048d9aSJiri Pirko if (IS_ERR(hdr)) 185101048d9aSJiri Pirko return PTR_ERR(hdr); 185201048d9aSJiri Pirko 185301048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 185401048d9aSJiri Pirko goto nla_put_failure; 185501048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 185601048d9aSJiri Pirko if (!option_list) 185701048d9aSJiri Pirko goto nla_put_failure; 185801048d9aSJiri Pirko 18599b00cf2dSJiri Pirko i = 0; 18609b00cf2dSJiri Pirko incomplete = false; 18619b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 186201048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 18639b00cf2dSJiri Pirko if (err) { 18649b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 18659b00cf2dSJiri Pirko if (!i) 186601048d9aSJiri Pirko goto errout; 18679b00cf2dSJiri Pirko incomplete = true; 18689b00cf2dSJiri Pirko break; 18699b00cf2dSJiri Pirko } 18709b00cf2dSJiri Pirko goto errout; 18719b00cf2dSJiri Pirko } 18729b00cf2dSJiri Pirko i++; 18733d249d4cSJiri Pirko } 18743d249d4cSJiri Pirko 18753d249d4cSJiri Pirko nla_nest_end(skb, option_list); 18769b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 18779b00cf2dSJiri Pirko if (incomplete) 18789b00cf2dSJiri Pirko goto start_again; 18799b00cf2dSJiri Pirko 18809b00cf2dSJiri Pirko send_done: 18819b00cf2dSJiri Pirko nlh = nlmsg_put(skb, pid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 18829b00cf2dSJiri Pirko if (!nlh) { 18839b00cf2dSJiri Pirko err = __send_and_alloc_skb(&skb, team, pid, send_func); 18849b00cf2dSJiri Pirko if (err) 18859b00cf2dSJiri Pirko goto errout; 18869b00cf2dSJiri Pirko goto send_done; 18879b00cf2dSJiri Pirko } 18889b00cf2dSJiri Pirko 18899b00cf2dSJiri Pirko return send_func(skb, team, pid); 18903d249d4cSJiri Pirko 18913d249d4cSJiri Pirko nla_put_failure: 189280f7c668SJiri Pirko err = -EMSGSIZE; 189380f7c668SJiri Pirko errout: 18943d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 18959b00cf2dSJiri Pirko nlmsg_free(skb); 189680f7c668SJiri Pirko return err; 18973d249d4cSJiri Pirko } 18983d249d4cSJiri Pirko 18993d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 19003d249d4cSJiri Pirko { 19013d249d4cSJiri Pirko struct team *team; 19029b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 19033d249d4cSJiri Pirko int err; 19049b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 19053d249d4cSJiri Pirko 19063d249d4cSJiri Pirko team = team_nl_team_get(info); 19073d249d4cSJiri Pirko if (!team) 19083d249d4cSJiri Pirko return -EINVAL; 19093d249d4cSJiri Pirko 19109b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 19119b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 19129b00cf2dSJiri Pirko err = team_nl_send_options_get(team, info->snd_pid, info->snd_seq, 19139b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 19149b00cf2dSJiri Pirko &sel_opt_inst_list); 19153d249d4cSJiri Pirko 19163d249d4cSJiri Pirko team_nl_team_put(team); 19173d249d4cSJiri Pirko 19183d249d4cSJiri Pirko return err; 19193d249d4cSJiri Pirko } 19203d249d4cSJiri Pirko 19212fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 19222fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 19232fcdb2c9SJiri Pirko 19243d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 19253d249d4cSJiri Pirko { 19263d249d4cSJiri Pirko struct team *team; 19273d249d4cSJiri Pirko int err = 0; 19283d249d4cSJiri Pirko int i; 19293d249d4cSJiri Pirko struct nlattr *nl_option; 19302fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 19313d249d4cSJiri Pirko 19323d249d4cSJiri Pirko team = team_nl_team_get(info); 19333d249d4cSJiri Pirko if (!team) 19343d249d4cSJiri Pirko return -EINVAL; 19353d249d4cSJiri Pirko 19363d249d4cSJiri Pirko err = -EINVAL; 19373d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 19383d249d4cSJiri Pirko err = -EINVAL; 19393d249d4cSJiri Pirko goto team_put; 19403d249d4cSJiri Pirko } 19413d249d4cSJiri Pirko 19423d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 194380f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 1944b1303326SJiri Pirko struct nlattr *attr; 194514f066baSJiri Pirko struct nlattr *attr_data; 19463d249d4cSJiri Pirko enum team_option_type opt_type; 194780f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 1948b1303326SJiri Pirko u32 opt_array_index = 0; 1949b1303326SJiri Pirko bool opt_is_array = false; 195080f7c668SJiri Pirko struct team_option_inst *opt_inst; 19513d249d4cSJiri Pirko char *opt_name; 19523d249d4cSJiri Pirko bool opt_found = false; 19533d249d4cSJiri Pirko 19543d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 19553d249d4cSJiri Pirko err = -EINVAL; 19563d249d4cSJiri Pirko goto team_put; 19573d249d4cSJiri Pirko } 195880f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 19593d249d4cSJiri Pirko nl_option, team_nl_option_policy); 19603d249d4cSJiri Pirko if (err) 19613d249d4cSJiri Pirko goto team_put; 196280f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 196314f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 19643d249d4cSJiri Pirko err = -EINVAL; 19653d249d4cSJiri Pirko goto team_put; 19663d249d4cSJiri Pirko } 196780f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 19683d249d4cSJiri Pirko case NLA_U32: 19693d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 19703d249d4cSJiri Pirko break; 19713d249d4cSJiri Pirko case NLA_STRING: 19723d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 19733d249d4cSJiri Pirko break; 19742615598fSJiri Pirko case NLA_BINARY: 19752615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 19762615598fSJiri Pirko break; 197714f066baSJiri Pirko case NLA_FLAG: 197814f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 197914f066baSJiri Pirko break; 19803d249d4cSJiri Pirko default: 19813d249d4cSJiri Pirko goto team_put; 19823d249d4cSJiri Pirko } 19833d249d4cSJiri Pirko 198414f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 198514f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 198614f066baSJiri Pirko err = -EINVAL; 198714f066baSJiri Pirko goto team_put; 198814f066baSJiri Pirko } 198914f066baSJiri Pirko 199080f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 1991b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 1992b1303326SJiri Pirko if (attr) 1993b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 1994b1303326SJiri Pirko 1995b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 1996b1303326SJiri Pirko if (attr) { 1997b1303326SJiri Pirko opt_is_array = true; 1998b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 1999b1303326SJiri Pirko } 20003d249d4cSJiri Pirko 200180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 200280f7c668SJiri Pirko struct team_option *option = opt_inst->option; 200380f7c668SJiri Pirko struct team_gsetter_ctx ctx; 200485d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 200580f7c668SJiri Pirko int tmp_ifindex; 200680f7c668SJiri Pirko 200785d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 200885d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 200985d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 20103d249d4cSJiri Pirko if (option->type != opt_type || 201180f7c668SJiri Pirko strcmp(option->name, opt_name) || 2012b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2013b1303326SJiri Pirko (option->array_size && !opt_is_array) || 201485d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 20153d249d4cSJiri Pirko continue; 20163d249d4cSJiri Pirko opt_found = true; 201785d59a87SJiri Pirko ctx.info = opt_inst_info; 20183d249d4cSJiri Pirko switch (opt_type) { 20193d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 202014f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 20213d249d4cSJiri Pirko break; 20223d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 202314f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 20242615598fSJiri Pirko err = -EINVAL; 20252615598fSJiri Pirko goto team_put; 20262615598fSJiri Pirko } 202714f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 20283d249d4cSJiri Pirko break; 20292615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 203014f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 203114f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 203214f066baSJiri Pirko break; 203314f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 203414f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 20352615598fSJiri Pirko break; 20363d249d4cSJiri Pirko default: 20373d249d4cSJiri Pirko BUG(); 20383d249d4cSJiri Pirko } 203980f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 20403d249d4cSJiri Pirko if (err) 20413d249d4cSJiri Pirko goto team_put; 20422fcdb2c9SJiri Pirko opt_inst->changed = true; 20432fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 20443d249d4cSJiri Pirko } 20453d249d4cSJiri Pirko if (!opt_found) { 20463d249d4cSJiri Pirko err = -ENOENT; 20473d249d4cSJiri Pirko goto team_put; 20483d249d4cSJiri Pirko } 20493d249d4cSJiri Pirko } 20503d249d4cSJiri Pirko 20512fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 20522fcdb2c9SJiri Pirko 20533d249d4cSJiri Pirko team_put: 20543d249d4cSJiri Pirko team_nl_team_put(team); 20553d249d4cSJiri Pirko 20563d249d4cSJiri Pirko return err; 20573d249d4cSJiri Pirko } 20583d249d4cSJiri Pirko 2059b82b9183SJiri Pirko static int team_nl_fill_port_list_get(struct sk_buff *skb, 20603d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 20613d249d4cSJiri Pirko struct team *team, 2062b82b9183SJiri Pirko bool fillall) 20633d249d4cSJiri Pirko { 20643d249d4cSJiri Pirko struct nlattr *port_list; 20653d249d4cSJiri Pirko void *hdr; 20663d249d4cSJiri Pirko struct team_port *port; 20673d249d4cSJiri Pirko 20683d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 20693d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 20703d249d4cSJiri Pirko if (IS_ERR(hdr)) 20713d249d4cSJiri Pirko return PTR_ERR(hdr); 20723d249d4cSJiri Pirko 207386ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 207486ebb02dSDavid S. Miller goto nla_put_failure; 20753d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 20763d249d4cSJiri Pirko if (!port_list) 20773221c646SJiri Pirko goto nla_put_failure; 20783d249d4cSJiri Pirko 20793d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 20803d249d4cSJiri Pirko struct nlattr *port_item; 20813d249d4cSJiri Pirko 2082b82b9183SJiri Pirko /* Include only changed ports if fill all mode is not on */ 2083b82b9183SJiri Pirko if (!fillall && !port->changed) 2084b82b9183SJiri Pirko continue; 20853d249d4cSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 20863d249d4cSJiri Pirko if (!port_item) 20873d249d4cSJiri Pirko goto nla_put_failure; 208886ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 208986ebb02dSDavid S. Miller goto nla_put_failure; 2090b82b9183SJiri Pirko if (port->changed) { 209186ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 209286ebb02dSDavid S. Miller goto nla_put_failure; 2093b82b9183SJiri Pirko port->changed = false; 2094b82b9183SJiri Pirko } 209586ebb02dSDavid S. Miller if ((port->removed && 209686ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 209771472ec1SJiri Pirko (port->state.linkup && 209886ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 209971472ec1SJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 210071472ec1SJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 210186ebb02dSDavid S. Miller goto nla_put_failure; 21023d249d4cSJiri Pirko nla_nest_end(skb, port_item); 21033d249d4cSJiri Pirko } 21043d249d4cSJiri Pirko 21053d249d4cSJiri Pirko nla_nest_end(skb, port_list); 21063d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 21073d249d4cSJiri Pirko 21083d249d4cSJiri Pirko nla_put_failure: 21093d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 21103d249d4cSJiri Pirko return -EMSGSIZE; 21113d249d4cSJiri Pirko } 21123d249d4cSJiri Pirko 2113b82b9183SJiri Pirko static int team_nl_fill_port_list_get_all(struct sk_buff *skb, 21143d249d4cSJiri Pirko struct genl_info *info, int flags, 21153d249d4cSJiri Pirko struct team *team) 21163d249d4cSJiri Pirko { 2117b82b9183SJiri Pirko return team_nl_fill_port_list_get(skb, info->snd_pid, 21183d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 2119b82b9183SJiri Pirko team, true); 21203d249d4cSJiri Pirko } 21213d249d4cSJiri Pirko 21223d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 21233d249d4cSJiri Pirko struct genl_info *info) 21243d249d4cSJiri Pirko { 21253d249d4cSJiri Pirko struct team *team; 21263d249d4cSJiri Pirko int err; 21273d249d4cSJiri Pirko 21283d249d4cSJiri Pirko team = team_nl_team_get(info); 21293d249d4cSJiri Pirko if (!team) 21303d249d4cSJiri Pirko return -EINVAL; 21313d249d4cSJiri Pirko 2132b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_port_list_get_all); 21333d249d4cSJiri Pirko 21343d249d4cSJiri Pirko team_nl_team_put(team); 21353d249d4cSJiri Pirko 21363d249d4cSJiri Pirko return err; 21373d249d4cSJiri Pirko } 21383d249d4cSJiri Pirko 21393d249d4cSJiri Pirko static struct genl_ops team_nl_ops[] = { 21403d249d4cSJiri Pirko { 21413d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 21423d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 21433d249d4cSJiri Pirko .policy = team_nl_policy, 21443d249d4cSJiri Pirko }, 21453d249d4cSJiri Pirko { 21463d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 21473d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 21483d249d4cSJiri Pirko .policy = team_nl_policy, 21493d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 21503d249d4cSJiri Pirko }, 21513d249d4cSJiri Pirko { 21523d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 21533d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 21543d249d4cSJiri Pirko .policy = team_nl_policy, 21553d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 21563d249d4cSJiri Pirko }, 21573d249d4cSJiri Pirko { 21583d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 21593d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 21603d249d4cSJiri Pirko .policy = team_nl_policy, 21613d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 21623d249d4cSJiri Pirko }, 21633d249d4cSJiri Pirko }; 21643d249d4cSJiri Pirko 21653d249d4cSJiri Pirko static struct genl_multicast_group team_change_event_mcgrp = { 21663d249d4cSJiri Pirko .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, 21673d249d4cSJiri Pirko }; 21683d249d4cSJiri Pirko 21699b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 21709b00cf2dSJiri Pirko struct team *team, u32 pid) 21719b00cf2dSJiri Pirko { 21729b00cf2dSJiri Pirko return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, 21739b00cf2dSJiri Pirko team_change_event_mcgrp.id, GFP_KERNEL); 21749b00cf2dSJiri Pirko } 21759b00cf2dSJiri Pirko 217601048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 217701048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 21783d249d4cSJiri Pirko { 21799b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 21809b00cf2dSJiri Pirko sel_opt_inst_list); 21813d249d4cSJiri Pirko } 21823d249d4cSJiri Pirko 2183b82b9183SJiri Pirko static int team_nl_send_event_port_list_get(struct team *team) 21843d249d4cSJiri Pirko { 21853d249d4cSJiri Pirko struct sk_buff *skb; 21863d249d4cSJiri Pirko int err; 2187b82b9183SJiri Pirko struct net *net = dev_net(team->dev); 21883d249d4cSJiri Pirko 218958050fceSThomas Graf skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 21903d249d4cSJiri Pirko if (!skb) 21913d249d4cSJiri Pirko return -ENOMEM; 21923d249d4cSJiri Pirko 2193b82b9183SJiri Pirko err = team_nl_fill_port_list_get(skb, 0, 0, 0, team, false); 21943d249d4cSJiri Pirko if (err < 0) 21953d249d4cSJiri Pirko goto err_fill; 21963d249d4cSJiri Pirko 21973d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 21983d249d4cSJiri Pirko GFP_KERNEL); 21993d249d4cSJiri Pirko return err; 22003d249d4cSJiri Pirko 22013d249d4cSJiri Pirko err_fill: 22023d249d4cSJiri Pirko nlmsg_free(skb); 22033d249d4cSJiri Pirko return err; 22043d249d4cSJiri Pirko } 22053d249d4cSJiri Pirko 22063d249d4cSJiri Pirko static int team_nl_init(void) 22073d249d4cSJiri Pirko { 22083d249d4cSJiri Pirko int err; 22093d249d4cSJiri Pirko 22103d249d4cSJiri Pirko err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, 22113d249d4cSJiri Pirko ARRAY_SIZE(team_nl_ops)); 22123d249d4cSJiri Pirko if (err) 22133d249d4cSJiri Pirko return err; 22143d249d4cSJiri Pirko 22153d249d4cSJiri Pirko err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); 22163d249d4cSJiri Pirko if (err) 22173d249d4cSJiri Pirko goto err_change_event_grp_reg; 22183d249d4cSJiri Pirko 22193d249d4cSJiri Pirko return 0; 22203d249d4cSJiri Pirko 22213d249d4cSJiri Pirko err_change_event_grp_reg: 22223d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 22233d249d4cSJiri Pirko 22243d249d4cSJiri Pirko return err; 22253d249d4cSJiri Pirko } 22263d249d4cSJiri Pirko 22273d249d4cSJiri Pirko static void team_nl_fini(void) 22283d249d4cSJiri Pirko { 22293d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 22303d249d4cSJiri Pirko } 22313d249d4cSJiri Pirko 22323d249d4cSJiri Pirko 22333d249d4cSJiri Pirko /****************** 22343d249d4cSJiri Pirko * Change checkers 22353d249d4cSJiri Pirko ******************/ 22363d249d4cSJiri Pirko 2237b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 22383d249d4cSJiri Pirko { 22393d249d4cSJiri Pirko int err; 224001048d9aSJiri Pirko struct team_option_inst *opt_inst; 224101048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 22423d249d4cSJiri Pirko 224301048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 224401048d9aSJiri Pirko if (opt_inst->changed) 224501048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 224601048d9aSJiri Pirko } 224701048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 22483d249d4cSJiri Pirko if (err) 22499b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 22509b00cf2dSJiri Pirko err); 22513d249d4cSJiri Pirko } 22523d249d4cSJiri Pirko 22533d249d4cSJiri Pirko /* rtnl lock is held */ 22543d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 22553d249d4cSJiri Pirko { 22563d249d4cSJiri Pirko int err; 22573d249d4cSJiri Pirko 225871472ec1SJiri Pirko if (!port->removed && port->state.linkup == linkup) 22593d249d4cSJiri Pirko return; 22603d249d4cSJiri Pirko 2261b82b9183SJiri Pirko port->changed = true; 226271472ec1SJiri Pirko port->state.linkup = linkup; 226371472ec1SJiri Pirko team_refresh_port_linkup(port); 22643d249d4cSJiri Pirko if (linkup) { 22653d249d4cSJiri Pirko struct ethtool_cmd ecmd; 22663d249d4cSJiri Pirko 22673d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 22683d249d4cSJiri Pirko if (!err) { 226971472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 227071472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 22713d249d4cSJiri Pirko goto send_event; 22723d249d4cSJiri Pirko } 22733d249d4cSJiri Pirko } 227471472ec1SJiri Pirko port->state.speed = 0; 227571472ec1SJiri Pirko port->state.duplex = 0; 22763d249d4cSJiri Pirko 22773d249d4cSJiri Pirko send_event: 2278b82b9183SJiri Pirko err = team_nl_send_event_port_list_get(port->team); 22793d249d4cSJiri Pirko if (err) 22803d249d4cSJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink\n", 22813d249d4cSJiri Pirko port->dev->name); 22823d249d4cSJiri Pirko 22833d249d4cSJiri Pirko } 22843d249d4cSJiri Pirko 22853d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 22863d249d4cSJiri Pirko { 22873d249d4cSJiri Pirko struct team *team = port->team; 22883d249d4cSJiri Pirko 228961dc3461SJiri Pirko mutex_lock(&team->lock); 22903d249d4cSJiri Pirko __team_port_change_check(port, linkup); 229161dc3461SJiri Pirko mutex_unlock(&team->lock); 22923d249d4cSJiri Pirko } 22933d249d4cSJiri Pirko 22940f1aad2bSJiri Pirko 22953d249d4cSJiri Pirko /************************************ 22963d249d4cSJiri Pirko * Net device notifier event handler 22973d249d4cSJiri Pirko ************************************/ 22983d249d4cSJiri Pirko 22993d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 23003d249d4cSJiri Pirko unsigned long event, void *ptr) 23013d249d4cSJiri Pirko { 23023d249d4cSJiri Pirko struct net_device *dev = (struct net_device *) ptr; 23033d249d4cSJiri Pirko struct team_port *port; 23043d249d4cSJiri Pirko 23053d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 23063d249d4cSJiri Pirko if (!port) 23073d249d4cSJiri Pirko return NOTIFY_DONE; 23083d249d4cSJiri Pirko 23093d249d4cSJiri Pirko switch (event) { 23103d249d4cSJiri Pirko case NETDEV_UP: 23113d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 23123d249d4cSJiri Pirko team_port_change_check(port, true); 23133d249d4cSJiri Pirko case NETDEV_DOWN: 23143d249d4cSJiri Pirko team_port_change_check(port, false); 23153d249d4cSJiri Pirko case NETDEV_CHANGE: 23163d249d4cSJiri Pirko if (netif_running(port->dev)) 23173d249d4cSJiri Pirko team_port_change_check(port, 23183d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 23193d249d4cSJiri Pirko break; 23203d249d4cSJiri Pirko case NETDEV_UNREGISTER: 23213d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 23223d249d4cSJiri Pirko break; 23233d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 23243d249d4cSJiri Pirko team_compute_features(port->team); 23253d249d4cSJiri Pirko break; 23263d249d4cSJiri Pirko case NETDEV_CHANGEMTU: 23273d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 23283d249d4cSJiri Pirko return NOTIFY_BAD; 23293d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 23303d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 23313d249d4cSJiri Pirko return NOTIFY_BAD; 23323d249d4cSJiri Pirko } 23333d249d4cSJiri Pirko return NOTIFY_DONE; 23343d249d4cSJiri Pirko } 23353d249d4cSJiri Pirko 23363d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 23373d249d4cSJiri Pirko .notifier_call = team_device_event, 23383d249d4cSJiri Pirko }; 23393d249d4cSJiri Pirko 23403d249d4cSJiri Pirko 23413d249d4cSJiri Pirko /*********************** 23423d249d4cSJiri Pirko * Module init and exit 23433d249d4cSJiri Pirko ***********************/ 23443d249d4cSJiri Pirko 23453d249d4cSJiri Pirko static int __init team_module_init(void) 23463d249d4cSJiri Pirko { 23473d249d4cSJiri Pirko int err; 23483d249d4cSJiri Pirko 23493d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 23503d249d4cSJiri Pirko 23513d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 23523d249d4cSJiri Pirko if (err) 23533d249d4cSJiri Pirko goto err_rtnl_reg; 23543d249d4cSJiri Pirko 23553d249d4cSJiri Pirko err = team_nl_init(); 23563d249d4cSJiri Pirko if (err) 23573d249d4cSJiri Pirko goto err_nl_init; 23583d249d4cSJiri Pirko 23593d249d4cSJiri Pirko return 0; 23603d249d4cSJiri Pirko 23613d249d4cSJiri Pirko err_nl_init: 23623d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 23633d249d4cSJiri Pirko 23643d249d4cSJiri Pirko err_rtnl_reg: 23653d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 23663d249d4cSJiri Pirko 23673d249d4cSJiri Pirko return err; 23683d249d4cSJiri Pirko } 23693d249d4cSJiri Pirko 23703d249d4cSJiri Pirko static void __exit team_module_exit(void) 23713d249d4cSJiri Pirko { 23723d249d4cSJiri Pirko team_nl_fini(); 23733d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 23743d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 23753d249d4cSJiri Pirko } 23763d249d4cSJiri Pirko 23773d249d4cSJiri Pirko module_init(team_module_init); 23783d249d4cSJiri Pirko module_exit(team_module_exit); 23793d249d4cSJiri Pirko 23803d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 23813d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 23823d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 23833d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2384