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> 317f51c587SFlavio Leitner #include <generated/utsrelease.h> 323d249d4cSJiri Pirko #include <linux/if_team.h> 333d249d4cSJiri Pirko 343d249d4cSJiri Pirko #define DRV_NAME "team" 353d249d4cSJiri Pirko 363d249d4cSJiri Pirko 373d249d4cSJiri Pirko /********** 383d249d4cSJiri Pirko * Helpers 393d249d4cSJiri Pirko **********/ 403d249d4cSJiri Pirko 413d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 423d249d4cSJiri Pirko 433d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 443d249d4cSJiri Pirko { 453d249d4cSJiri Pirko struct team_port *port = rcu_dereference(dev->rx_handler_data); 463d249d4cSJiri Pirko 473d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 483d249d4cSJiri Pirko } 493d249d4cSJiri Pirko 503d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 513d249d4cSJiri Pirko { 523d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 533d249d4cSJiri Pirko 543d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 553d249d4cSJiri Pirko } 563d249d4cSJiri Pirko 573d249d4cSJiri Pirko /* 581d76efe1SJiri Pirko * Since the ability to change device address for open port device is tested in 593d249d4cSJiri Pirko * team_port_add, this function can be called without control of return value 603d249d4cSJiri Pirko */ 611d76efe1SJiri Pirko static int __set_port_dev_addr(struct net_device *port_dev, 623d249d4cSJiri Pirko const unsigned char *dev_addr) 633d249d4cSJiri Pirko { 643d249d4cSJiri Pirko struct sockaddr addr; 653d249d4cSJiri Pirko 661d76efe1SJiri Pirko memcpy(addr.sa_data, dev_addr, port_dev->addr_len); 671d76efe1SJiri Pirko addr.sa_family = port_dev->type; 683d249d4cSJiri Pirko return dev_set_mac_address(port_dev, &addr); 693d249d4cSJiri Pirko } 703d249d4cSJiri Pirko 711d76efe1SJiri Pirko static int team_port_set_orig_dev_addr(struct team_port *port) 723d249d4cSJiri Pirko { 731d76efe1SJiri Pirko return __set_port_dev_addr(port->dev, port->orig.dev_addr); 743d249d4cSJiri Pirko } 753d249d4cSJiri Pirko 76acbba0d0SJiri Pirko static int team_port_set_team_dev_addr(struct team *team, 77acbba0d0SJiri Pirko struct team_port *port) 783d249d4cSJiri Pirko { 79acbba0d0SJiri Pirko return __set_port_dev_addr(port->dev, team->dev->dev_addr); 803d249d4cSJiri Pirko } 81acbba0d0SJiri Pirko 82acbba0d0SJiri Pirko int team_modeop_port_enter(struct team *team, struct team_port *port) 83acbba0d0SJiri Pirko { 84acbba0d0SJiri Pirko return team_port_set_team_dev_addr(team, port); 85acbba0d0SJiri Pirko } 86acbba0d0SJiri Pirko EXPORT_SYMBOL(team_modeop_port_enter); 87acbba0d0SJiri Pirko 88acbba0d0SJiri Pirko void team_modeop_port_change_dev_addr(struct team *team, 89acbba0d0SJiri Pirko struct team_port *port) 90acbba0d0SJiri Pirko { 91acbba0d0SJiri Pirko team_port_set_team_dev_addr(team, port); 92acbba0d0SJiri Pirko } 93acbba0d0SJiri Pirko EXPORT_SYMBOL(team_modeop_port_change_dev_addr); 943d249d4cSJiri Pirko 9571472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 9671472ec1SJiri Pirko { 9771472ec1SJiri Pirko port->linkup = port->user.linkup_enabled ? port->user.linkup : 9871472ec1SJiri Pirko port->state.linkup; 9971472ec1SJiri Pirko } 1003d249d4cSJiri Pirko 1010f1aad2bSJiri Pirko 1023d249d4cSJiri Pirko /******************* 1033d249d4cSJiri Pirko * Options handling 1043d249d4cSJiri Pirko *******************/ 1053d249d4cSJiri Pirko 10680f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 10780f7c668SJiri Pirko struct list_head list; 10801048d9aSJiri Pirko struct list_head tmp_list; 10980f7c668SJiri Pirko struct team_option *option; 11085d59a87SJiri Pirko struct team_option_inst_info info; 11180f7c668SJiri Pirko bool changed; 11280f7c668SJiri Pirko bool removed; 11380f7c668SJiri Pirko }; 11480f7c668SJiri Pirko 11580f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 11680f7c668SJiri Pirko const char *opt_name) 117358b8382SJiri Pirko { 118358b8382SJiri Pirko struct team_option *option; 119358b8382SJiri Pirko 120358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 121358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 122358b8382SJiri Pirko return option; 123358b8382SJiri Pirko } 124358b8382SJiri Pirko return NULL; 125358b8382SJiri Pirko } 126358b8382SJiri Pirko 12780f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 12880f7c668SJiri Pirko { 12980f7c668SJiri Pirko list_del(&opt_inst->list); 13080f7c668SJiri Pirko kfree(opt_inst); 13180f7c668SJiri Pirko } 13280f7c668SJiri Pirko 13380f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 13480f7c668SJiri Pirko struct team_option *option) 13580f7c668SJiri Pirko { 13680f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 13780f7c668SJiri Pirko 13880f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 13980f7c668SJiri Pirko if (opt_inst->option == option) 14080f7c668SJiri Pirko __team_option_inst_del(opt_inst); 14180f7c668SJiri Pirko } 14280f7c668SJiri Pirko } 14380f7c668SJiri Pirko 144b1303326SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 145b1303326SJiri Pirko struct team_port *port) 146b1303326SJiri Pirko { 147b1303326SJiri Pirko struct team_option_inst *opt_inst; 148b1303326SJiri Pirko unsigned int array_size; 149b1303326SJiri Pirko unsigned int i; 15085d59a87SJiri Pirko int err; 151b1303326SJiri Pirko 152b1303326SJiri Pirko array_size = option->array_size; 153b1303326SJiri Pirko if (!array_size) 154b1303326SJiri Pirko array_size = 1; /* No array but still need one instance */ 155b1303326SJiri Pirko 156b1303326SJiri Pirko for (i = 0; i < array_size; i++) { 157b1303326SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 158b1303326SJiri Pirko if (!opt_inst) 159b1303326SJiri Pirko return -ENOMEM; 160b1303326SJiri Pirko opt_inst->option = option; 16185d59a87SJiri Pirko opt_inst->info.port = port; 16285d59a87SJiri Pirko opt_inst->info.array_index = i; 163b1303326SJiri Pirko opt_inst->changed = true; 164b1303326SJiri Pirko opt_inst->removed = false; 165b1303326SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 16685d59a87SJiri Pirko if (option->init) { 16785d59a87SJiri Pirko err = option->init(team, &opt_inst->info); 16885d59a87SJiri Pirko if (err) 16985d59a87SJiri Pirko return err; 17085d59a87SJiri Pirko } 17185d59a87SJiri Pirko 172b1303326SJiri Pirko } 173b1303326SJiri Pirko return 0; 174b1303326SJiri Pirko } 175b1303326SJiri Pirko 17680f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 17780f7c668SJiri Pirko struct team_option *option) 17880f7c668SJiri Pirko { 17980f7c668SJiri Pirko struct team_port *port; 18080f7c668SJiri Pirko int err; 18180f7c668SJiri Pirko 182b1303326SJiri Pirko if (!option->per_port) { 183f88725ffSJiri Pirko err = __team_option_inst_add(team, option, NULL); 184b1303326SJiri Pirko if (err) 185b1303326SJiri Pirko goto inst_del_option; 186b1303326SJiri Pirko } 18780f7c668SJiri Pirko 18880f7c668SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 18980f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 19080f7c668SJiri Pirko if (err) 19180f7c668SJiri Pirko goto inst_del_option; 19280f7c668SJiri Pirko } 19380f7c668SJiri Pirko return 0; 19480f7c668SJiri Pirko 19580f7c668SJiri Pirko inst_del_option: 19680f7c668SJiri Pirko __team_option_inst_del_option(team, option); 19780f7c668SJiri Pirko return err; 19880f7c668SJiri Pirko } 19980f7c668SJiri Pirko 20080f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 20180f7c668SJiri Pirko struct team_option *option) 20280f7c668SJiri Pirko { 20380f7c668SJiri Pirko struct team_option_inst *opt_inst; 20480f7c668SJiri Pirko 20580f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 20680f7c668SJiri Pirko if (opt_inst->option == option) { 20780f7c668SJiri Pirko opt_inst->changed = true; 20880f7c668SJiri Pirko opt_inst->removed = true; 20980f7c668SJiri Pirko } 21080f7c668SJiri Pirko } 21180f7c668SJiri Pirko } 21280f7c668SJiri Pirko 21380f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 21480f7c668SJiri Pirko struct team_port *port) 21580f7c668SJiri Pirko { 21680f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 21780f7c668SJiri Pirko 21880f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 21980f7c668SJiri Pirko if (opt_inst->option->per_port && 22085d59a87SJiri Pirko opt_inst->info.port == port) 22180f7c668SJiri Pirko __team_option_inst_del(opt_inst); 22280f7c668SJiri Pirko } 22380f7c668SJiri Pirko } 22480f7c668SJiri Pirko 22580f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 22680f7c668SJiri Pirko struct team_port *port) 22780f7c668SJiri Pirko { 22880f7c668SJiri Pirko struct team_option *option; 22980f7c668SJiri Pirko int err; 23080f7c668SJiri Pirko 23180f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 23280f7c668SJiri Pirko if (!option->per_port) 23380f7c668SJiri Pirko continue; 23480f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 23580f7c668SJiri Pirko if (err) 23680f7c668SJiri Pirko goto inst_del_port; 23780f7c668SJiri Pirko } 23880f7c668SJiri Pirko return 0; 23980f7c668SJiri Pirko 24080f7c668SJiri Pirko inst_del_port: 24180f7c668SJiri Pirko __team_option_inst_del_port(team, port); 24280f7c668SJiri Pirko return err; 24380f7c668SJiri Pirko } 24480f7c668SJiri Pirko 24580f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 24680f7c668SJiri Pirko struct team_port *port) 24780f7c668SJiri Pirko { 24880f7c668SJiri Pirko struct team_option_inst *opt_inst; 24980f7c668SJiri Pirko 25080f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 25185d59a87SJiri Pirko if (opt_inst->info.port == port) { 25280f7c668SJiri Pirko opt_inst->changed = true; 25380f7c668SJiri Pirko opt_inst->removed = true; 25480f7c668SJiri Pirko } 25580f7c668SJiri Pirko } 25680f7c668SJiri Pirko } 25780f7c668SJiri Pirko 25880f7c668SJiri Pirko static int __team_options_register(struct team *team, 259358b8382SJiri Pirko const struct team_option *option, 2603d249d4cSJiri Pirko size_t option_count) 2613d249d4cSJiri Pirko { 2623d249d4cSJiri Pirko int i; 2632bba19ffSJiri Pirko struct team_option **dst_opts; 264358b8382SJiri Pirko int err; 2653d249d4cSJiri Pirko 2662bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2672bba19ffSJiri Pirko GFP_KERNEL); 2682bba19ffSJiri Pirko if (!dst_opts) 2692bba19ffSJiri Pirko return -ENOMEM; 270358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 271358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 272358b8382SJiri Pirko err = -EEXIST; 27380f7c668SJiri Pirko goto alloc_rollback; 2743d249d4cSJiri Pirko } 275f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 276f8a15af0SJiri Pirko if (!dst_opts[i]) { 277358b8382SJiri Pirko err = -ENOMEM; 27880f7c668SJiri Pirko goto alloc_rollback; 279358b8382SJiri Pirko } 280358b8382SJiri Pirko } 281358b8382SJiri Pirko 282b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 28380f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 28480f7c668SJiri Pirko if (err) 28580f7c668SJiri Pirko goto inst_rollback; 286358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 287b82b9183SJiri Pirko } 288358b8382SJiri Pirko 2892bba19ffSJiri Pirko kfree(dst_opts); 290358b8382SJiri Pirko return 0; 291358b8382SJiri Pirko 29280f7c668SJiri Pirko inst_rollback: 29380f7c668SJiri Pirko for (i--; i >= 0; i--) 29480f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 29580f7c668SJiri Pirko 29680f7c668SJiri Pirko i = option_count - 1; 29780f7c668SJiri Pirko alloc_rollback: 29880f7c668SJiri Pirko for (i--; i >= 0; i--) 299358b8382SJiri Pirko kfree(dst_opts[i]); 300358b8382SJiri Pirko 3012bba19ffSJiri Pirko kfree(dst_opts); 302358b8382SJiri Pirko return err; 303358b8382SJiri Pirko } 304358b8382SJiri Pirko 305b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 306b82b9183SJiri Pirko const struct team_option *option, 307b82b9183SJiri Pirko size_t option_count) 308b82b9183SJiri Pirko { 309b82b9183SJiri Pirko int i; 3103d249d4cSJiri Pirko 311b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 312b82b9183SJiri Pirko struct team_option *del_opt; 313b82b9183SJiri Pirko 314b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 31580f7c668SJiri Pirko if (del_opt) 31680f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 317b82b9183SJiri Pirko } 318b82b9183SJiri Pirko } 3193d249d4cSJiri Pirko 3203d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 321358b8382SJiri Pirko const struct team_option *option, 3223d249d4cSJiri Pirko size_t option_count) 3233d249d4cSJiri Pirko { 3243d249d4cSJiri Pirko int i; 3253d249d4cSJiri Pirko 326358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 327358b8382SJiri Pirko struct team_option *del_opt; 328358b8382SJiri Pirko 329358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 330358b8382SJiri Pirko if (del_opt) { 33180f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 332358b8382SJiri Pirko list_del(&del_opt->list); 333358b8382SJiri Pirko kfree(del_opt); 334358b8382SJiri Pirko } 335358b8382SJiri Pirko } 3363d249d4cSJiri Pirko } 3373d249d4cSJiri Pirko 338b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 339b82b9183SJiri Pirko 340b82b9183SJiri Pirko int team_options_register(struct team *team, 341b82b9183SJiri Pirko const struct team_option *option, 342b82b9183SJiri Pirko size_t option_count) 343b82b9183SJiri Pirko { 344b82b9183SJiri Pirko int err; 345b82b9183SJiri Pirko 346b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 347b82b9183SJiri Pirko if (err) 348b82b9183SJiri Pirko return err; 349b82b9183SJiri Pirko __team_options_change_check(team); 350b82b9183SJiri Pirko return 0; 351b82b9183SJiri Pirko } 352b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 353b82b9183SJiri Pirko 354358b8382SJiri Pirko void team_options_unregister(struct team *team, 355358b8382SJiri Pirko const struct team_option *option, 3563d249d4cSJiri Pirko size_t option_count) 3573d249d4cSJiri Pirko { 358b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 359b82b9183SJiri Pirko __team_options_change_check(team); 3603d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3613d249d4cSJiri Pirko } 3623d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3633d249d4cSJiri Pirko 36480f7c668SJiri Pirko static int team_option_get(struct team *team, 36580f7c668SJiri Pirko struct team_option_inst *opt_inst, 36680f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 36780f7c668SJiri Pirko { 368f82b959dSJiri Pirko if (!opt_inst->option->getter) 369f82b959dSJiri Pirko return -EOPNOTSUPP; 37080f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 37180f7c668SJiri Pirko } 37280f7c668SJiri Pirko 37380f7c668SJiri Pirko static int team_option_set(struct team *team, 37480f7c668SJiri Pirko struct team_option_inst *opt_inst, 37580f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 37680f7c668SJiri Pirko { 377f82b959dSJiri Pirko if (!opt_inst->option->setter) 378f82b959dSJiri Pirko return -EOPNOTSUPP; 3792fcdb2c9SJiri Pirko return opt_inst->option->setter(team, ctx); 3803d249d4cSJiri Pirko } 3813d249d4cSJiri Pirko 3820f1aad2bSJiri Pirko void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) 3830f1aad2bSJiri Pirko { 3840f1aad2bSJiri Pirko struct team_option_inst *opt_inst; 3850f1aad2bSJiri Pirko 3860f1aad2bSJiri Pirko opt_inst = container_of(opt_inst_info, struct team_option_inst, info); 3870f1aad2bSJiri Pirko opt_inst->changed = true; 3880f1aad2bSJiri Pirko } 3890f1aad2bSJiri Pirko EXPORT_SYMBOL(team_option_inst_set_change); 3900f1aad2bSJiri Pirko 3910f1aad2bSJiri Pirko void team_options_change_check(struct team *team) 3920f1aad2bSJiri Pirko { 3930f1aad2bSJiri Pirko __team_options_change_check(team); 3940f1aad2bSJiri Pirko } 3950f1aad2bSJiri Pirko EXPORT_SYMBOL(team_options_change_check); 3960f1aad2bSJiri Pirko 3970f1aad2bSJiri Pirko 3983d249d4cSJiri Pirko /**************** 3993d249d4cSJiri Pirko * Mode handling 4003d249d4cSJiri Pirko ****************/ 4013d249d4cSJiri Pirko 4023d249d4cSJiri Pirko static LIST_HEAD(mode_list); 4033d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 4043d249d4cSJiri Pirko 4050402788aSJiri Pirko struct team_mode_item { 4060402788aSJiri Pirko struct list_head list; 4070402788aSJiri Pirko const struct team_mode *mode; 4080402788aSJiri Pirko }; 4093d249d4cSJiri Pirko 4100402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 4110402788aSJiri Pirko { 4120402788aSJiri Pirko struct team_mode_item *mitem; 4130402788aSJiri Pirko 4140402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 4150402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 4160402788aSJiri Pirko return mitem; 4173d249d4cSJiri Pirko } 4183d249d4cSJiri Pirko return NULL; 4193d249d4cSJiri Pirko } 4203d249d4cSJiri Pirko 4213d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 4223d249d4cSJiri Pirko { 4233d249d4cSJiri Pirko while (*name != '\0') { 4243d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 4253d249d4cSJiri Pirko return false; 4263d249d4cSJiri Pirko name++; 4273d249d4cSJiri Pirko } 4283d249d4cSJiri Pirko return true; 4293d249d4cSJiri Pirko } 4303d249d4cSJiri Pirko 4310402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4323d249d4cSJiri Pirko { 4333d249d4cSJiri Pirko int err = 0; 4340402788aSJiri Pirko struct team_mode_item *mitem; 4353d249d4cSJiri Pirko 4363d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4373d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4383d249d4cSJiri Pirko return -EINVAL; 4390402788aSJiri Pirko 4400402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4410402788aSJiri Pirko if (!mitem) 4420402788aSJiri Pirko return -ENOMEM; 4430402788aSJiri Pirko 4443d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4453d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4463d249d4cSJiri Pirko err = -EEXIST; 4470402788aSJiri Pirko kfree(mitem); 4483d249d4cSJiri Pirko goto unlock; 4493d249d4cSJiri Pirko } 4500402788aSJiri Pirko mitem->mode = mode; 4510402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4523d249d4cSJiri Pirko unlock: 4533d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4543d249d4cSJiri Pirko return err; 4553d249d4cSJiri Pirko } 4563d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4573d249d4cSJiri Pirko 4580402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4593d249d4cSJiri Pirko { 4600402788aSJiri Pirko struct team_mode_item *mitem; 4610402788aSJiri Pirko 4623d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4630402788aSJiri Pirko mitem = __find_mode(mode->kind); 4640402788aSJiri Pirko if (mitem) { 4650402788aSJiri Pirko list_del_init(&mitem->list); 4660402788aSJiri Pirko kfree(mitem); 4670402788aSJiri Pirko } 4683d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4693d249d4cSJiri Pirko } 4703d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4713d249d4cSJiri Pirko 4720402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4733d249d4cSJiri Pirko { 4740402788aSJiri Pirko struct team_mode_item *mitem; 4750402788aSJiri Pirko const struct team_mode *mode = NULL; 4763d249d4cSJiri Pirko 4773d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4780402788aSJiri Pirko mitem = __find_mode(kind); 4790402788aSJiri Pirko if (!mitem) { 4803d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4813d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4823d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4830402788aSJiri Pirko mitem = __find_mode(kind); 4843d249d4cSJiri Pirko } 4850402788aSJiri Pirko if (mitem) { 4860402788aSJiri Pirko mode = mitem->mode; 4873d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4883d249d4cSJiri Pirko mode = NULL; 4890402788aSJiri Pirko } 4903d249d4cSJiri Pirko 4913d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4923d249d4cSJiri Pirko return mode; 4933d249d4cSJiri Pirko } 4943d249d4cSJiri Pirko 4953d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 4963d249d4cSJiri Pirko { 4973d249d4cSJiri Pirko module_put(mode->owner); 4983d249d4cSJiri Pirko } 4993d249d4cSJiri Pirko 5003d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 5013d249d4cSJiri Pirko { 5023d249d4cSJiri Pirko dev_kfree_skb_any(skb); 5033d249d4cSJiri Pirko return false; 5043d249d4cSJiri Pirko } 5053d249d4cSJiri Pirko 5062ea46599Sstephen hemminger static rx_handler_result_t team_dummy_receive(struct team *team, 5073d249d4cSJiri Pirko struct team_port *port, 5083d249d4cSJiri Pirko struct sk_buff *skb) 5093d249d4cSJiri Pirko { 5103d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 5113d249d4cSJiri Pirko } 5123d249d4cSJiri Pirko 513d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 514d299cd51SJiri Pirko .kind = "*NOMODE*", 515d299cd51SJiri Pirko }; 516d299cd51SJiri Pirko 517d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 518d299cd51SJiri Pirko { 519d299cd51SJiri Pirko return team->mode != &__team_no_mode; 520d299cd51SJiri Pirko } 521d299cd51SJiri Pirko 522d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 523d299cd51SJiri Pirko { 524e185483eSFlavio Leitner team->user_carrier_enabled = false; 525d299cd51SJiri Pirko team->mode = &__team_no_mode; 526d299cd51SJiri Pirko } 527d299cd51SJiri Pirko 528735d381fSJiri Pirko static void team_adjust_ops(struct team *team) 5293d249d4cSJiri Pirko { 5303d249d4cSJiri Pirko /* 5313d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5323d249d4cSJiri Pirko * correct ops are always set. 5333d249d4cSJiri Pirko */ 5343d249d4cSJiri Pirko 535735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 536122bb046SJiri Pirko !team->mode->ops->transmit) 5373d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5383d249d4cSJiri Pirko else 5393d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5403d249d4cSJiri Pirko 541735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 542122bb046SJiri Pirko !team->mode->ops->receive) 5433d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5443d249d4cSJiri Pirko else 5453d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5463d249d4cSJiri Pirko } 5473d249d4cSJiri Pirko 5483d249d4cSJiri Pirko /* 5493d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5503d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5513d249d4cSJiri Pirko * need to set mode operations in any special way. 5523d249d4cSJiri Pirko */ 5533d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5543d249d4cSJiri Pirko const struct team_mode *new_mode) 5553d249d4cSJiri Pirko { 5563d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 557d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5583d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5593d249d4cSJiri Pirko 5603d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5613d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5623d249d4cSJiri Pirko team_adjust_ops(team); 5633d249d4cSJiri Pirko 5643d249d4cSJiri Pirko if (exit_op) 5653d249d4cSJiri Pirko exit_op(team); 5663d249d4cSJiri Pirko team_mode_put(team->mode); 567d299cd51SJiri Pirko team_set_no_mode(team); 5683d249d4cSJiri Pirko /* zero private data area */ 5693d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5703d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5713d249d4cSJiri Pirko } 5723d249d4cSJiri Pirko 5733d249d4cSJiri Pirko if (!new_mode) 5743d249d4cSJiri Pirko return 0; 5753d249d4cSJiri Pirko 5763d249d4cSJiri Pirko if (new_mode->ops->init) { 5773d249d4cSJiri Pirko int err; 5783d249d4cSJiri Pirko 5793d249d4cSJiri Pirko err = new_mode->ops->init(team); 5803d249d4cSJiri Pirko if (err) 5813d249d4cSJiri Pirko return err; 5823d249d4cSJiri Pirko } 5833d249d4cSJiri Pirko 5843d249d4cSJiri Pirko team->mode = new_mode; 5853d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5863d249d4cSJiri Pirko team_adjust_ops(team); 5873d249d4cSJiri Pirko 5883d249d4cSJiri Pirko return 0; 5893d249d4cSJiri Pirko } 5903d249d4cSJiri Pirko 5913d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5923d249d4cSJiri Pirko { 5930402788aSJiri Pirko const struct team_mode *new_mode; 5943d249d4cSJiri Pirko struct net_device *dev = team->dev; 5953d249d4cSJiri Pirko int err; 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 5983d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 5993d249d4cSJiri Pirko return -EBUSY; 6003d249d4cSJiri Pirko } 6013d249d4cSJiri Pirko 602d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 6033d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 6043d249d4cSJiri Pirko return -EINVAL; 6053d249d4cSJiri Pirko } 6063d249d4cSJiri Pirko 6073d249d4cSJiri Pirko new_mode = team_mode_get(kind); 6083d249d4cSJiri Pirko if (!new_mode) { 6093d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6103d249d4cSJiri Pirko return -EINVAL; 6113d249d4cSJiri Pirko } 6123d249d4cSJiri Pirko 6133d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6143d249d4cSJiri Pirko if (err) { 6153d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6163d249d4cSJiri Pirko team_mode_put(new_mode); 6173d249d4cSJiri Pirko return err; 6183d249d4cSJiri Pirko } 6193d249d4cSJiri Pirko 6203d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6213d249d4cSJiri Pirko return 0; 6223d249d4cSJiri Pirko } 6233d249d4cSJiri Pirko 6243d249d4cSJiri Pirko 625fc423ff0SJiri Pirko /********************* 626fc423ff0SJiri Pirko * Peers notification 627fc423ff0SJiri Pirko *********************/ 628fc423ff0SJiri Pirko 629fc423ff0SJiri Pirko static void team_notify_peers_work(struct work_struct *work) 630fc423ff0SJiri Pirko { 631fc423ff0SJiri Pirko struct team *team; 632fc423ff0SJiri Pirko 633fc423ff0SJiri Pirko team = container_of(work, struct team, notify_peers.dw.work); 634fc423ff0SJiri Pirko 635fc423ff0SJiri Pirko if (!rtnl_trylock()) { 636fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 637fc423ff0SJiri Pirko return; 638fc423ff0SJiri Pirko } 639fc423ff0SJiri Pirko call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); 640fc423ff0SJiri Pirko rtnl_unlock(); 641fc423ff0SJiri Pirko if (!atomic_dec_and_test(&team->notify_peers.count_pending)) 642fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 643fc423ff0SJiri Pirko msecs_to_jiffies(team->notify_peers.interval)); 644fc423ff0SJiri Pirko } 645fc423ff0SJiri Pirko 646fc423ff0SJiri Pirko static void team_notify_peers(struct team *team) 647fc423ff0SJiri Pirko { 648fc423ff0SJiri Pirko if (!team->notify_peers.count || !netif_running(team->dev)) 649fc423ff0SJiri Pirko return; 650fc423ff0SJiri Pirko atomic_set(&team->notify_peers.count_pending, team->notify_peers.count); 651fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 652fc423ff0SJiri Pirko } 653fc423ff0SJiri Pirko 654fc423ff0SJiri Pirko static void team_notify_peers_init(struct team *team) 655fc423ff0SJiri Pirko { 656fc423ff0SJiri Pirko INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); 657fc423ff0SJiri Pirko } 658fc423ff0SJiri Pirko 659fc423ff0SJiri Pirko static void team_notify_peers_fini(struct team *team) 660fc423ff0SJiri Pirko { 661fc423ff0SJiri Pirko cancel_delayed_work_sync(&team->notify_peers.dw); 662fc423ff0SJiri Pirko } 663fc423ff0SJiri Pirko 664fc423ff0SJiri Pirko 665492b200eSJiri Pirko /******************************* 666492b200eSJiri Pirko * Send multicast group rejoins 667492b200eSJiri Pirko *******************************/ 668492b200eSJiri Pirko 669492b200eSJiri Pirko static void team_mcast_rejoin_work(struct work_struct *work) 670492b200eSJiri Pirko { 671492b200eSJiri Pirko struct team *team; 672492b200eSJiri Pirko 673492b200eSJiri Pirko team = container_of(work, struct team, mcast_rejoin.dw.work); 674492b200eSJiri Pirko 675492b200eSJiri Pirko if (!rtnl_trylock()) { 676492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 677492b200eSJiri Pirko return; 678492b200eSJiri Pirko } 679492b200eSJiri Pirko call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); 680492b200eSJiri Pirko rtnl_unlock(); 681492b200eSJiri Pirko if (!atomic_dec_and_test(&team->mcast_rejoin.count_pending)) 682492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 683492b200eSJiri Pirko msecs_to_jiffies(team->mcast_rejoin.interval)); 684492b200eSJiri Pirko } 685492b200eSJiri Pirko 686492b200eSJiri Pirko static void team_mcast_rejoin(struct team *team) 687492b200eSJiri Pirko { 688492b200eSJiri Pirko if (!team->mcast_rejoin.count || !netif_running(team->dev)) 689492b200eSJiri Pirko return; 690492b200eSJiri Pirko atomic_set(&team->mcast_rejoin.count_pending, team->mcast_rejoin.count); 691492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 692492b200eSJiri Pirko } 693492b200eSJiri Pirko 694492b200eSJiri Pirko static void team_mcast_rejoin_init(struct team *team) 695492b200eSJiri Pirko { 696492b200eSJiri Pirko INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); 697492b200eSJiri Pirko } 698492b200eSJiri Pirko 699492b200eSJiri Pirko static void team_mcast_rejoin_fini(struct team *team) 700492b200eSJiri Pirko { 701492b200eSJiri Pirko cancel_delayed_work_sync(&team->mcast_rejoin.dw); 702492b200eSJiri Pirko } 703492b200eSJiri Pirko 704492b200eSJiri Pirko 7053d249d4cSJiri Pirko /************************ 7063d249d4cSJiri Pirko * Rx path frame handler 7073d249d4cSJiri Pirko ************************/ 7083d249d4cSJiri Pirko 7093d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 7103d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 7113d249d4cSJiri Pirko { 7123d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 7133d249d4cSJiri Pirko struct team_port *port; 7143d249d4cSJiri Pirko struct team *team; 7153d249d4cSJiri Pirko rx_handler_result_t res; 7163d249d4cSJiri Pirko 7173d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 7183d249d4cSJiri Pirko if (!skb) 7193d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 7203d249d4cSJiri Pirko 7213d249d4cSJiri Pirko *pskb = skb; 7223d249d4cSJiri Pirko 7233d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 7243d249d4cSJiri Pirko team = port->team; 72519a0b58eSJiri Pirko if (!team_port_enabled(port)) { 72619a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 72719a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 72819a0b58eSJiri Pirko } else { 7293d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 73019a0b58eSJiri Pirko } 7313d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 7323d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 7333d249d4cSJiri Pirko 7343d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 7353d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 7363d249d4cSJiri Pirko pcpu_stats->rx_packets++; 7373d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 7383d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 7393d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 7403d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 7413d249d4cSJiri Pirko 7423d249d4cSJiri Pirko skb->dev = team->dev; 7433d249d4cSJiri Pirko } else { 7443d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 7453d249d4cSJiri Pirko } 7463d249d4cSJiri Pirko 7473d249d4cSJiri Pirko return res; 7483d249d4cSJiri Pirko } 7493d249d4cSJiri Pirko 7503d249d4cSJiri Pirko 7518ff5105aSJiri Pirko /************************************* 7528ff5105aSJiri Pirko * Multiqueue Tx port select override 7538ff5105aSJiri Pirko *************************************/ 7548ff5105aSJiri Pirko 7558ff5105aSJiri Pirko static int team_queue_override_init(struct team *team) 7568ff5105aSJiri Pirko { 7578ff5105aSJiri Pirko struct list_head *listarr; 7588ff5105aSJiri Pirko unsigned int queue_cnt = team->dev->num_tx_queues - 1; 7598ff5105aSJiri Pirko unsigned int i; 7608ff5105aSJiri Pirko 7618ff5105aSJiri Pirko if (!queue_cnt) 7628ff5105aSJiri Pirko return 0; 7638ff5105aSJiri Pirko listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); 7648ff5105aSJiri Pirko if (!listarr) 7658ff5105aSJiri Pirko return -ENOMEM; 7668ff5105aSJiri Pirko team->qom_lists = listarr; 7678ff5105aSJiri Pirko for (i = 0; i < queue_cnt; i++) 7688ff5105aSJiri Pirko INIT_LIST_HEAD(listarr++); 7698ff5105aSJiri Pirko return 0; 7708ff5105aSJiri Pirko } 7718ff5105aSJiri Pirko 7728ff5105aSJiri Pirko static void team_queue_override_fini(struct team *team) 7738ff5105aSJiri Pirko { 7748ff5105aSJiri Pirko kfree(team->qom_lists); 7758ff5105aSJiri Pirko } 7768ff5105aSJiri Pirko 7778ff5105aSJiri Pirko static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) 7788ff5105aSJiri Pirko { 7798ff5105aSJiri Pirko return &team->qom_lists[queue_id - 1]; 7808ff5105aSJiri Pirko } 7818ff5105aSJiri Pirko 7828ff5105aSJiri Pirko /* 7838ff5105aSJiri Pirko * note: already called with rcu_read_lock 7848ff5105aSJiri Pirko */ 7858ff5105aSJiri Pirko static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) 7868ff5105aSJiri Pirko { 7878ff5105aSJiri Pirko struct list_head *qom_list; 7888ff5105aSJiri Pirko struct team_port *port; 7898ff5105aSJiri Pirko 7908ff5105aSJiri Pirko if (!team->queue_override_enabled || !skb->queue_mapping) 7918ff5105aSJiri Pirko return false; 7928ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, skb->queue_mapping); 7938ff5105aSJiri Pirko list_for_each_entry_rcu(port, qom_list, qom_list) { 7948ff5105aSJiri Pirko if (!team_dev_queue_xmit(team, port, skb)) 7958ff5105aSJiri Pirko return true; 7968ff5105aSJiri Pirko } 7978ff5105aSJiri Pirko return false; 7988ff5105aSJiri Pirko } 7998ff5105aSJiri Pirko 8008ff5105aSJiri Pirko static void __team_queue_override_port_del(struct team *team, 8018ff5105aSJiri Pirko struct team_port *port) 8028ff5105aSJiri Pirko { 8036c31ff36SJiri Pirko if (!port->queue_id) 8046c31ff36SJiri Pirko return; 8058ff5105aSJiri Pirko list_del_rcu(&port->qom_list); 8068ff5105aSJiri Pirko } 8078ff5105aSJiri Pirko 8088ff5105aSJiri Pirko static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, 8098ff5105aSJiri Pirko struct team_port *cur) 8108ff5105aSJiri Pirko { 8118ff5105aSJiri Pirko if (port->priority < cur->priority) 8128ff5105aSJiri Pirko return true; 8138ff5105aSJiri Pirko if (port->priority > cur->priority) 8148ff5105aSJiri Pirko return false; 8158ff5105aSJiri Pirko if (port->index < cur->index) 8168ff5105aSJiri Pirko return true; 8178ff5105aSJiri Pirko return false; 8188ff5105aSJiri Pirko } 8198ff5105aSJiri Pirko 8208ff5105aSJiri Pirko static void __team_queue_override_port_add(struct team *team, 8218ff5105aSJiri Pirko struct team_port *port) 8228ff5105aSJiri Pirko { 8238ff5105aSJiri Pirko struct team_port *cur; 8248ff5105aSJiri Pirko struct list_head *qom_list; 8258ff5105aSJiri Pirko struct list_head *node; 8268ff5105aSJiri Pirko 8276c31ff36SJiri Pirko if (!port->queue_id) 8288ff5105aSJiri Pirko return; 8298ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, port->queue_id); 8308ff5105aSJiri Pirko node = qom_list; 8318ff5105aSJiri Pirko list_for_each_entry(cur, qom_list, qom_list) { 8328ff5105aSJiri Pirko if (team_queue_override_port_has_gt_prio_than(port, cur)) 8338ff5105aSJiri Pirko break; 8348ff5105aSJiri Pirko node = &cur->qom_list; 8358ff5105aSJiri Pirko } 8368ff5105aSJiri Pirko list_add_tail_rcu(&port->qom_list, node); 8378ff5105aSJiri Pirko } 8388ff5105aSJiri Pirko 8398ff5105aSJiri Pirko static void __team_queue_override_enabled_check(struct team *team) 8408ff5105aSJiri Pirko { 8418ff5105aSJiri Pirko struct team_port *port; 8428ff5105aSJiri Pirko bool enabled = false; 8438ff5105aSJiri Pirko 8448ff5105aSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 8456c31ff36SJiri Pirko if (port->queue_id) { 8468ff5105aSJiri Pirko enabled = true; 8478ff5105aSJiri Pirko break; 8488ff5105aSJiri Pirko } 8498ff5105aSJiri Pirko } 8508ff5105aSJiri Pirko if (enabled == team->queue_override_enabled) 8518ff5105aSJiri Pirko return; 8528ff5105aSJiri Pirko netdev_dbg(team->dev, "%s queue override\n", 8538ff5105aSJiri Pirko enabled ? "Enabling" : "Disabling"); 8548ff5105aSJiri Pirko team->queue_override_enabled = enabled; 8558ff5105aSJiri Pirko } 8568ff5105aSJiri Pirko 8576c31ff36SJiri Pirko static void team_queue_override_port_prio_changed(struct team *team, 8586c31ff36SJiri Pirko struct team_port *port) 8596c31ff36SJiri Pirko { 8606c31ff36SJiri Pirko if (!port->queue_id || team_port_enabled(port)) 8616c31ff36SJiri Pirko return; 8626c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 8636c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8646c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8656c31ff36SJiri Pirko } 8666c31ff36SJiri Pirko 8676c31ff36SJiri Pirko static void team_queue_override_port_change_queue_id(struct team *team, 8686c31ff36SJiri Pirko struct team_port *port, 8696c31ff36SJiri Pirko u16 new_queue_id) 8706c31ff36SJiri Pirko { 8716c31ff36SJiri Pirko if (team_port_enabled(port)) { 8726c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 8736c31ff36SJiri Pirko port->queue_id = new_queue_id; 8746c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8756c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8766c31ff36SJiri Pirko } else { 8776c31ff36SJiri Pirko port->queue_id = new_queue_id; 8786c31ff36SJiri Pirko } 8796c31ff36SJiri Pirko } 8806c31ff36SJiri Pirko 8816c31ff36SJiri Pirko static void team_queue_override_port_add(struct team *team, 8826c31ff36SJiri Pirko struct team_port *port) 8836c31ff36SJiri Pirko { 8846c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8856c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8866c31ff36SJiri Pirko } 8876c31ff36SJiri Pirko 8886c31ff36SJiri Pirko static void team_queue_override_port_del(struct team *team, 8898ff5105aSJiri Pirko struct team_port *port) 8908ff5105aSJiri Pirko { 8918ff5105aSJiri Pirko __team_queue_override_port_del(team, port); 8928ff5105aSJiri Pirko __team_queue_override_enabled_check(team); 8938ff5105aSJiri Pirko } 8948ff5105aSJiri Pirko 8958ff5105aSJiri Pirko 8963d249d4cSJiri Pirko /**************** 8973d249d4cSJiri Pirko * Port handling 8983d249d4cSJiri Pirko ****************/ 8993d249d4cSJiri Pirko 9003d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 9013d249d4cSJiri Pirko const struct team_port *port) 9023d249d4cSJiri Pirko { 9033d249d4cSJiri Pirko struct team_port *cur; 9043d249d4cSJiri Pirko 9053d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 9063d249d4cSJiri Pirko if (cur == port) 9073d249d4cSJiri Pirko return true; 9083d249d4cSJiri Pirko return false; 9093d249d4cSJiri Pirko } 9103d249d4cSJiri Pirko 9113d249d4cSJiri Pirko /* 91219a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 91319a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 91419a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 91519a0b58eSJiri Pirko * by team->lock. 9163d249d4cSJiri Pirko */ 91719a0b58eSJiri Pirko static void team_port_enable(struct team *team, 9183d249d4cSJiri Pirko struct team_port *port) 9193d249d4cSJiri Pirko { 92019a0b58eSJiri Pirko if (team_port_enabled(port)) 92119a0b58eSJiri Pirko return; 92219a0b58eSJiri Pirko port->index = team->en_port_count++; 9233d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9243d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 925122bb046SJiri Pirko team_adjust_ops(team); 9266c31ff36SJiri Pirko team_queue_override_port_add(team, port); 9274bccfd17SJiri Pirko if (team->ops.port_enabled) 9284bccfd17SJiri Pirko team->ops.port_enabled(team, port); 929fc423ff0SJiri Pirko team_notify_peers(team); 930492b200eSJiri Pirko team_mcast_rejoin(team); 9313d249d4cSJiri Pirko } 9323d249d4cSJiri Pirko 9333d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 9343d249d4cSJiri Pirko { 9353d249d4cSJiri Pirko int i; 9363d249d4cSJiri Pirko struct team_port *port; 9373d249d4cSJiri Pirko 93819a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 9393d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 9403d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 9413d249d4cSJiri Pirko port->index--; 9423d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9433d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 9443d249d4cSJiri Pirko } 9453d249d4cSJiri Pirko } 9463d249d4cSJiri Pirko 94719a0b58eSJiri Pirko static void team_port_disable(struct team *team, 9483d249d4cSJiri Pirko struct team_port *port) 9493d249d4cSJiri Pirko { 95019a0b58eSJiri Pirko if (!team_port_enabled(port)) 95119a0b58eSJiri Pirko return; 9524bccfd17SJiri Pirko if (team->ops.port_disabled) 9534bccfd17SJiri Pirko team->ops.port_disabled(team, port); 9543d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 955122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 95619a0b58eSJiri Pirko port->index = -1; 957122bb046SJiri Pirko team->en_port_count--; 958735d381fSJiri Pirko team_queue_override_port_del(team, port); 959735d381fSJiri Pirko team_adjust_ops(team); 960fc423ff0SJiri Pirko team_notify_peers(team); 961492b200eSJiri Pirko team_mcast_rejoin(team); 9623d249d4cSJiri Pirko } 9633d249d4cSJiri Pirko 9643d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 9653d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 9663d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 9673d249d4cSJiri Pirko 9683d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 9693d249d4cSJiri Pirko { 9703d249d4cSJiri Pirko struct team_port *port; 9713625920bSMichal Kubeček u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; 9723d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 973dc905951SJiri Pirko unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; 9743d249d4cSJiri Pirko 9753d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 9763d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 9773d249d4cSJiri Pirko port->dev->vlan_features, 9783d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 9793d249d4cSJiri Pirko 980dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 9813d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 9823d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 9833d249d4cSJiri Pirko } 9843d249d4cSJiri Pirko 9853d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 9863d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 9873d249d4cSJiri Pirko 988dc905951SJiri Pirko flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; 989dc905951SJiri Pirko team->dev->priv_flags = flags | dst_release_flag; 990dc905951SJiri Pirko 9913d249d4cSJiri Pirko netdev_change_features(team->dev); 9923d249d4cSJiri Pirko } 9933d249d4cSJiri Pirko 9943d249d4cSJiri Pirko static void team_compute_features(struct team *team) 9953d249d4cSJiri Pirko { 99661dc3461SJiri Pirko mutex_lock(&team->lock); 9973d249d4cSJiri Pirko __team_compute_features(team); 99861dc3461SJiri Pirko mutex_unlock(&team->lock); 9993d249d4cSJiri Pirko } 10003d249d4cSJiri Pirko 10013d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 10023d249d4cSJiri Pirko { 10033d249d4cSJiri Pirko int err = 0; 10043d249d4cSJiri Pirko 10053d249d4cSJiri Pirko dev_hold(team->dev); 10063d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 10073d249d4cSJiri Pirko if (team->ops.port_enter) { 10083d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 10093d249d4cSJiri Pirko if (err) { 10103d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 10113d249d4cSJiri Pirko port->dev->name); 10123d249d4cSJiri Pirko goto err_port_enter; 10133d249d4cSJiri Pirko } 10143d249d4cSJiri Pirko } 10153d249d4cSJiri Pirko 10163d249d4cSJiri Pirko return 0; 10173d249d4cSJiri Pirko 10183d249d4cSJiri Pirko err_port_enter: 10193d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 10203d249d4cSJiri Pirko dev_put(team->dev); 10213d249d4cSJiri Pirko 10223d249d4cSJiri Pirko return err; 10233d249d4cSJiri Pirko } 10243d249d4cSJiri Pirko 10253d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 10263d249d4cSJiri Pirko { 10273d249d4cSJiri Pirko if (team->ops.port_leave) 10283d249d4cSJiri Pirko team->ops.port_leave(team, port); 10293d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 10303d249d4cSJiri Pirko dev_put(team->dev); 10313d249d4cSJiri Pirko } 10323d249d4cSJiri Pirko 1033bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1034a8779ec1SEric W. Biederman static int team_port_enable_netpoll(struct team *team, struct team_port *port) 1035bd2d0837SJiri Pirko { 1036bd2d0837SJiri Pirko struct netpoll *np; 1037bd2d0837SJiri Pirko int err; 1038bd2d0837SJiri Pirko 10390fb52a27Sstephen hemminger if (!team->dev->npinfo) 10400fb52a27Sstephen hemminger return 0; 10410fb52a27Sstephen hemminger 1042a8779ec1SEric W. Biederman np = kzalloc(sizeof(*np), GFP_KERNEL); 1043bd2d0837SJiri Pirko if (!np) 1044bd2d0837SJiri Pirko return -ENOMEM; 1045bd2d0837SJiri Pirko 1046a8779ec1SEric W. Biederman err = __netpoll_setup(np, port->dev); 1047bd2d0837SJiri Pirko if (err) { 1048bd2d0837SJiri Pirko kfree(np); 1049bd2d0837SJiri Pirko return err; 1050bd2d0837SJiri Pirko } 1051bd2d0837SJiri Pirko port->np = np; 1052bd2d0837SJiri Pirko return err; 1053bd2d0837SJiri Pirko } 1054bd2d0837SJiri Pirko 1055bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1056bd2d0837SJiri Pirko { 1057bd2d0837SJiri Pirko struct netpoll *np = port->np; 1058bd2d0837SJiri Pirko 1059bd2d0837SJiri Pirko if (!np) 1060bd2d0837SJiri Pirko return; 1061bd2d0837SJiri Pirko port->np = NULL; 1062bd2d0837SJiri Pirko 1063bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 1064bd2d0837SJiri Pirko synchronize_rcu_bh(); 1065bd2d0837SJiri Pirko __netpoll_cleanup(np); 1066bd2d0837SJiri Pirko kfree(np); 1067bd2d0837SJiri Pirko } 1068bd2d0837SJiri Pirko #else 1069a8779ec1SEric W. Biederman static int team_port_enable_netpoll(struct team *team, struct team_port *port) 1070bd2d0837SJiri Pirko { 1071bd2d0837SJiri Pirko return 0; 1072bd2d0837SJiri Pirko } 1073bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1074bd2d0837SJiri Pirko { 1075bd2d0837SJiri Pirko } 1076bd2d0837SJiri Pirko #endif 1077bd2d0837SJiri Pirko 107810f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup); 10791d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 10801d76efe1SJiri Pirko struct net_device *port_dev); 10813d249d4cSJiri Pirko 10823d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 10833d249d4cSJiri Pirko { 10843d249d4cSJiri Pirko struct net_device *dev = team->dev; 10853d249d4cSJiri Pirko struct team_port *port; 10863d249d4cSJiri Pirko char *portname = port_dev->name; 10873d249d4cSJiri Pirko int err; 10883d249d4cSJiri Pirko 10891d76efe1SJiri Pirko if (port_dev->flags & IFF_LOOPBACK) { 10901d76efe1SJiri Pirko netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", 10913d249d4cSJiri Pirko portname); 10923d249d4cSJiri Pirko return -EINVAL; 10933d249d4cSJiri Pirko } 10943d249d4cSJiri Pirko 10953d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 10963d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 10973d249d4cSJiri Pirko "of a team device\n", portname); 10983d249d4cSJiri Pirko return -EBUSY; 10993d249d4cSJiri Pirko } 11003d249d4cSJiri Pirko 11012c33bb37SJiri Pirko if (port_dev->features & NETIF_F_VLAN_CHALLENGED && 11022c33bb37SJiri Pirko vlan_uses_dev(dev)) { 11032c33bb37SJiri Pirko netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", 11042c33bb37SJiri Pirko portname); 11052c33bb37SJiri Pirko return -EPERM; 11062c33bb37SJiri Pirko } 11072c33bb37SJiri Pirko 11081d76efe1SJiri Pirko err = team_dev_type_check_change(dev, port_dev); 11091d76efe1SJiri Pirko if (err) 11101d76efe1SJiri Pirko return err; 11111d76efe1SJiri Pirko 11123d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 11133d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 11143d249d4cSJiri Pirko portname); 11153d249d4cSJiri Pirko return -EBUSY; 11163d249d4cSJiri Pirko } 11173d249d4cSJiri Pirko 11185149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 11195149ee58SJiri Pirko GFP_KERNEL); 11203d249d4cSJiri Pirko if (!port) 11213d249d4cSJiri Pirko return -ENOMEM; 11223d249d4cSJiri Pirko 11233d249d4cSJiri Pirko port->dev = port_dev; 11243d249d4cSJiri Pirko port->team = team; 11258ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 11263d249d4cSJiri Pirko 11273d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 11283d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 11293d249d4cSJiri Pirko if (err) { 11303d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 11313d249d4cSJiri Pirko goto err_set_mtu; 11323d249d4cSJiri Pirko } 11333d249d4cSJiri Pirko 11341d76efe1SJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); 11353d249d4cSJiri Pirko 11363d249d4cSJiri Pirko err = team_port_enter(team, port); 11373d249d4cSJiri Pirko if (err) { 11383d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 11393d249d4cSJiri Pirko portname); 11403d249d4cSJiri Pirko goto err_port_enter; 11413d249d4cSJiri Pirko } 11423d249d4cSJiri Pirko 11433d249d4cSJiri Pirko err = dev_open(port_dev); 11443d249d4cSJiri Pirko if (err) { 11453d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 11463d249d4cSJiri Pirko portname); 11473d249d4cSJiri Pirko goto err_dev_open; 11483d249d4cSJiri Pirko } 11493d249d4cSJiri Pirko 115057459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 115157459185SJiri Pirko if (err) { 115257459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 115357459185SJiri Pirko portname); 115457459185SJiri Pirko goto err_vids_add; 115557459185SJiri Pirko } 115657459185SJiri Pirko 1157a8779ec1SEric W. Biederman err = team_port_enable_netpoll(team, port); 1158bd2d0837SJiri Pirko if (err) { 1159bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 1160bd2d0837SJiri Pirko portname); 1161bd2d0837SJiri Pirko goto err_enable_netpoll; 1162bd2d0837SJiri Pirko } 1163bd2d0837SJiri Pirko 1164b1cc9850SJiri Pirko err = netdev_master_upper_dev_link(port_dev, dev); 11653d249d4cSJiri Pirko if (err) { 1166b1cc9850SJiri Pirko netdev_err(dev, "Device %s failed to set upper link\n", 1167b1cc9850SJiri Pirko portname); 1168b1cc9850SJiri Pirko goto err_set_upper_link; 11693d249d4cSJiri Pirko } 11703d249d4cSJiri Pirko 11713d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 11723d249d4cSJiri Pirko port); 11733d249d4cSJiri Pirko if (err) { 11743d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 11753d249d4cSJiri Pirko portname); 11763d249d4cSJiri Pirko goto err_handler_register; 11773d249d4cSJiri Pirko } 11783d249d4cSJiri Pirko 117935b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 118080f7c668SJiri Pirko if (err) { 118180f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 118280f7c668SJiri Pirko portname); 118380f7c668SJiri Pirko goto err_option_port_add; 118480f7c668SJiri Pirko } 118580f7c668SJiri Pirko 118619a0b58eSJiri Pirko port->index = -1; 118719a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 118872df935dSJiri Pirko team_port_enable(team, port); 11893d249d4cSJiri Pirko __team_compute_features(team); 119010f3f51dSJiri Pirko __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); 119135b384bdSJiri Pirko __team_options_change_check(team); 11923d249d4cSJiri Pirko 11933d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 11943d249d4cSJiri Pirko 11953d249d4cSJiri Pirko return 0; 11963d249d4cSJiri Pirko 119780f7c668SJiri Pirko err_option_port_add: 119880f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 119980f7c668SJiri Pirko 12003d249d4cSJiri Pirko err_handler_register: 1201b1cc9850SJiri Pirko netdev_upper_dev_unlink(port_dev, dev); 12023d249d4cSJiri Pirko 1203b1cc9850SJiri Pirko err_set_upper_link: 1204bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1205bd2d0837SJiri Pirko 1206bd2d0837SJiri Pirko err_enable_netpoll: 120757459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 120857459185SJiri Pirko 120957459185SJiri Pirko err_vids_add: 12103d249d4cSJiri Pirko dev_close(port_dev); 12113d249d4cSJiri Pirko 12123d249d4cSJiri Pirko err_dev_open: 12133d249d4cSJiri Pirko team_port_leave(team, port); 12141d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 12153d249d4cSJiri Pirko 12163d249d4cSJiri Pirko err_port_enter: 12173d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 12183d249d4cSJiri Pirko 12193d249d4cSJiri Pirko err_set_mtu: 12203d249d4cSJiri Pirko kfree(port); 12213d249d4cSJiri Pirko 12223d249d4cSJiri Pirko return err; 12233d249d4cSJiri Pirko } 12243d249d4cSJiri Pirko 122510f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port); 122610f3f51dSJiri Pirko 12273d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 12283d249d4cSJiri Pirko { 12293d249d4cSJiri Pirko struct net_device *dev = team->dev; 12303d249d4cSJiri Pirko struct team_port *port; 12313d249d4cSJiri Pirko char *portname = port_dev->name; 12323d249d4cSJiri Pirko 12333d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 12343d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 12353d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 12363d249d4cSJiri Pirko portname); 12373d249d4cSJiri Pirko return -ENOENT; 12383d249d4cSJiri Pirko } 12393d249d4cSJiri Pirko 124019a0b58eSJiri Pirko team_port_disable(team, port); 124119a0b58eSJiri Pirko list_del_rcu(&port->list); 12423d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 1243b1cc9850SJiri Pirko netdev_upper_dev_unlink(port_dev, dev); 1244bd2d0837SJiri Pirko team_port_disable_netpoll(port); 124557459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 1246ba81276bSVlad Yasevich dev_uc_unsync(port_dev, dev); 1247ba81276bSVlad Yasevich dev_mc_unsync(port_dev, dev); 12483d249d4cSJiri Pirko dev_close(port_dev); 12493d249d4cSJiri Pirko team_port_leave(team, port); 1250c3969d80SJiri Pirko 1251c3969d80SJiri Pirko __team_option_inst_mark_removed_port(team, port); 1252c3969d80SJiri Pirko __team_options_change_check(team); 1253c3969d80SJiri Pirko __team_option_inst_del_port(team, port); 1254c3969d80SJiri Pirko __team_port_change_port_removed(port); 1255c3969d80SJiri Pirko 12561d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 12573d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 1258d80b35beSJiri Pirko kfree_rcu(port, rcu); 12593d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 12603d249d4cSJiri Pirko __team_compute_features(team); 12613d249d4cSJiri Pirko 12623d249d4cSJiri Pirko return 0; 12633d249d4cSJiri Pirko } 12643d249d4cSJiri Pirko 12653d249d4cSJiri Pirko 12663d249d4cSJiri Pirko /***************** 12673d249d4cSJiri Pirko * Net device ops 12683d249d4cSJiri Pirko *****************/ 12693d249d4cSJiri Pirko 127080f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 12713d249d4cSJiri Pirko { 1272d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 12733d249d4cSJiri Pirko return 0; 12743d249d4cSJiri Pirko } 12753d249d4cSJiri Pirko 127680f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 12773d249d4cSJiri Pirko { 127880f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 12793d249d4cSJiri Pirko } 12803d249d4cSJiri Pirko 1281fc423ff0SJiri Pirko static int team_notify_peers_count_get(struct team *team, 1282fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1283fc423ff0SJiri Pirko { 1284fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.count; 1285fc423ff0SJiri Pirko return 0; 1286fc423ff0SJiri Pirko } 1287fc423ff0SJiri Pirko 1288fc423ff0SJiri Pirko static int team_notify_peers_count_set(struct team *team, 1289fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1290fc423ff0SJiri Pirko { 1291fc423ff0SJiri Pirko team->notify_peers.count = ctx->data.u32_val; 1292fc423ff0SJiri Pirko return 0; 1293fc423ff0SJiri Pirko } 1294fc423ff0SJiri Pirko 1295fc423ff0SJiri Pirko static int team_notify_peers_interval_get(struct team *team, 1296fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1297fc423ff0SJiri Pirko { 1298fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.interval; 1299fc423ff0SJiri Pirko return 0; 1300fc423ff0SJiri Pirko } 1301fc423ff0SJiri Pirko 1302fc423ff0SJiri Pirko static int team_notify_peers_interval_set(struct team *team, 1303fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1304fc423ff0SJiri Pirko { 1305fc423ff0SJiri Pirko team->notify_peers.interval = ctx->data.u32_val; 1306fc423ff0SJiri Pirko return 0; 1307fc423ff0SJiri Pirko } 1308fc423ff0SJiri Pirko 1309492b200eSJiri Pirko static int team_mcast_rejoin_count_get(struct team *team, 1310492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1311492b200eSJiri Pirko { 1312492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.count; 1313492b200eSJiri Pirko return 0; 1314492b200eSJiri Pirko } 1315492b200eSJiri Pirko 1316492b200eSJiri Pirko static int team_mcast_rejoin_count_set(struct team *team, 1317492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1318492b200eSJiri Pirko { 1319492b200eSJiri Pirko team->mcast_rejoin.count = ctx->data.u32_val; 1320492b200eSJiri Pirko return 0; 1321492b200eSJiri Pirko } 1322492b200eSJiri Pirko 1323492b200eSJiri Pirko static int team_mcast_rejoin_interval_get(struct team *team, 1324492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1325492b200eSJiri Pirko { 1326492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.interval; 1327492b200eSJiri Pirko return 0; 1328492b200eSJiri Pirko } 1329492b200eSJiri Pirko 1330492b200eSJiri Pirko static int team_mcast_rejoin_interval_set(struct team *team, 1331492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1332492b200eSJiri Pirko { 1333492b200eSJiri Pirko team->mcast_rejoin.interval = ctx->data.u32_val; 1334492b200eSJiri Pirko return 0; 1335492b200eSJiri Pirko } 1336492b200eSJiri Pirko 1337acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1338acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1339acd69962SJiri Pirko { 134085d59a87SJiri Pirko struct team_port *port = ctx->info->port; 134185d59a87SJiri Pirko 134285d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1343acd69962SJiri Pirko return 0; 1344acd69962SJiri Pirko } 1345acd69962SJiri Pirko 1346acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1347acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1348acd69962SJiri Pirko { 134985d59a87SJiri Pirko struct team_port *port = ctx->info->port; 135085d59a87SJiri Pirko 1351acd69962SJiri Pirko if (ctx->data.bool_val) 135285d59a87SJiri Pirko team_port_enable(team, port); 1353acd69962SJiri Pirko else 135485d59a87SJiri Pirko team_port_disable(team, port); 1355acd69962SJiri Pirko return 0; 1356acd69962SJiri Pirko } 1357acd69962SJiri Pirko 135871472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 135971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 136071472ec1SJiri Pirko { 136185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 136285d59a87SJiri Pirko 136385d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 136471472ec1SJiri Pirko return 0; 136571472ec1SJiri Pirko } 136671472ec1SJiri Pirko 1367f5e0d343SJiri Pirko static void __team_carrier_check(struct team *team); 1368f5e0d343SJiri Pirko 136971472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 137071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 137171472ec1SJiri Pirko { 137285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 137385d59a87SJiri Pirko 137485d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 137585d59a87SJiri Pirko team_refresh_port_linkup(port); 1376f5e0d343SJiri Pirko __team_carrier_check(port->team); 137771472ec1SJiri Pirko return 0; 137871472ec1SJiri Pirko } 137971472ec1SJiri Pirko 138071472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 138171472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 138271472ec1SJiri Pirko { 138385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 138471472ec1SJiri Pirko 138571472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 138671472ec1SJiri Pirko return 0; 138771472ec1SJiri Pirko } 138871472ec1SJiri Pirko 138971472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 139071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 139171472ec1SJiri Pirko { 139285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 139371472ec1SJiri Pirko 139471472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 139585d59a87SJiri Pirko team_refresh_port_linkup(port); 1396f5e0d343SJiri Pirko __team_carrier_check(port->team); 139771472ec1SJiri Pirko return 0; 139871472ec1SJiri Pirko } 139971472ec1SJiri Pirko 1400a86fc6b7SJiri Pirko static int team_priority_option_get(struct team *team, 1401a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1402a86fc6b7SJiri Pirko { 1403a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1404a86fc6b7SJiri Pirko 1405a86fc6b7SJiri Pirko ctx->data.s32_val = port->priority; 1406a86fc6b7SJiri Pirko return 0; 1407a86fc6b7SJiri Pirko } 1408a86fc6b7SJiri Pirko 1409a86fc6b7SJiri Pirko static int team_priority_option_set(struct team *team, 1410a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1411a86fc6b7SJiri Pirko { 1412a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 14136c31ff36SJiri Pirko s32 priority = ctx->data.s32_val; 1414a86fc6b7SJiri Pirko 14156c31ff36SJiri Pirko if (port->priority == priority) 14166c31ff36SJiri Pirko return 0; 14176c31ff36SJiri Pirko port->priority = priority; 14186c31ff36SJiri Pirko team_queue_override_port_prio_changed(team, port); 1419a86fc6b7SJiri Pirko return 0; 1420a86fc6b7SJiri Pirko } 1421a86fc6b7SJiri Pirko 14228ff5105aSJiri Pirko static int team_queue_id_option_get(struct team *team, 14238ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 14248ff5105aSJiri Pirko { 14258ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 14268ff5105aSJiri Pirko 14278ff5105aSJiri Pirko ctx->data.u32_val = port->queue_id; 14288ff5105aSJiri Pirko return 0; 14298ff5105aSJiri Pirko } 14308ff5105aSJiri Pirko 14318ff5105aSJiri Pirko static int team_queue_id_option_set(struct team *team, 14328ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 14338ff5105aSJiri Pirko { 14348ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 14356c31ff36SJiri Pirko u16 new_queue_id = ctx->data.u32_val; 14368ff5105aSJiri Pirko 14376c31ff36SJiri Pirko if (port->queue_id == new_queue_id) 14388ff5105aSJiri Pirko return 0; 14396c31ff36SJiri Pirko if (new_queue_id >= team->dev->real_num_tx_queues) 14408ff5105aSJiri Pirko return -EINVAL; 14416c31ff36SJiri Pirko team_queue_override_port_change_queue_id(team, port, new_queue_id); 14428ff5105aSJiri Pirko return 0; 14438ff5105aSJiri Pirko } 14448ff5105aSJiri Pirko 1445358b8382SJiri Pirko static const struct team_option team_options[] = { 14463d249d4cSJiri Pirko { 14473d249d4cSJiri Pirko .name = "mode", 14483d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 14493d249d4cSJiri Pirko .getter = team_mode_option_get, 14503d249d4cSJiri Pirko .setter = team_mode_option_set, 14513d249d4cSJiri Pirko }, 145271472ec1SJiri Pirko { 1453fc423ff0SJiri Pirko .name = "notify_peers_count", 1454fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1455fc423ff0SJiri Pirko .getter = team_notify_peers_count_get, 1456fc423ff0SJiri Pirko .setter = team_notify_peers_count_set, 1457fc423ff0SJiri Pirko }, 1458fc423ff0SJiri Pirko { 1459fc423ff0SJiri Pirko .name = "notify_peers_interval", 1460fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1461fc423ff0SJiri Pirko .getter = team_notify_peers_interval_get, 1462fc423ff0SJiri Pirko .setter = team_notify_peers_interval_set, 1463fc423ff0SJiri Pirko }, 1464fc423ff0SJiri Pirko { 1465492b200eSJiri Pirko .name = "mcast_rejoin_count", 1466492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1467492b200eSJiri Pirko .getter = team_mcast_rejoin_count_get, 1468492b200eSJiri Pirko .setter = team_mcast_rejoin_count_set, 1469492b200eSJiri Pirko }, 1470492b200eSJiri Pirko { 1471492b200eSJiri Pirko .name = "mcast_rejoin_interval", 1472492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1473492b200eSJiri Pirko .getter = team_mcast_rejoin_interval_get, 1474492b200eSJiri Pirko .setter = team_mcast_rejoin_interval_set, 1475492b200eSJiri Pirko }, 1476492b200eSJiri Pirko { 1477acd69962SJiri Pirko .name = "enabled", 1478acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1479acd69962SJiri Pirko .per_port = true, 1480acd69962SJiri Pirko .getter = team_port_en_option_get, 1481acd69962SJiri Pirko .setter = team_port_en_option_set, 1482acd69962SJiri Pirko }, 1483acd69962SJiri Pirko { 148471472ec1SJiri Pirko .name = "user_linkup", 148571472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 148671472ec1SJiri Pirko .per_port = true, 148771472ec1SJiri Pirko .getter = team_user_linkup_option_get, 148871472ec1SJiri Pirko .setter = team_user_linkup_option_set, 148971472ec1SJiri Pirko }, 149071472ec1SJiri Pirko { 149171472ec1SJiri Pirko .name = "user_linkup_enabled", 149271472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 149371472ec1SJiri Pirko .per_port = true, 149471472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 149571472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 149671472ec1SJiri Pirko }, 1497a86fc6b7SJiri Pirko { 1498a86fc6b7SJiri Pirko .name = "priority", 1499a86fc6b7SJiri Pirko .type = TEAM_OPTION_TYPE_S32, 1500a86fc6b7SJiri Pirko .per_port = true, 1501a86fc6b7SJiri Pirko .getter = team_priority_option_get, 1502a86fc6b7SJiri Pirko .setter = team_priority_option_set, 1503a86fc6b7SJiri Pirko }, 15048ff5105aSJiri Pirko { 15058ff5105aSJiri Pirko .name = "queue_id", 15068ff5105aSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 15078ff5105aSJiri Pirko .per_port = true, 15088ff5105aSJiri Pirko .getter = team_queue_id_option_get, 15098ff5105aSJiri Pirko .setter = team_queue_id_option_set, 15108ff5105aSJiri Pirko }, 15113d249d4cSJiri Pirko }; 15123d249d4cSJiri Pirko 15136c85f2bdSJiri Pirko static struct lock_class_key team_netdev_xmit_lock_key; 15146c85f2bdSJiri Pirko static struct lock_class_key team_netdev_addr_lock_key; 1515b3c581d5SEric Dumazet static struct lock_class_key team_tx_busylock_key; 15166c85f2bdSJiri Pirko 15176c85f2bdSJiri Pirko static void team_set_lockdep_class_one(struct net_device *dev, 15186c85f2bdSJiri Pirko struct netdev_queue *txq, 15196c85f2bdSJiri Pirko void *unused) 15206c85f2bdSJiri Pirko { 15216c85f2bdSJiri Pirko lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); 15226c85f2bdSJiri Pirko } 15236c85f2bdSJiri Pirko 15246c85f2bdSJiri Pirko static void team_set_lockdep_class(struct net_device *dev) 15256c85f2bdSJiri Pirko { 15266c85f2bdSJiri Pirko lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); 15276c85f2bdSJiri Pirko netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); 1528b3c581d5SEric Dumazet dev->qdisc_tx_busylock = &team_tx_busylock_key; 15296c85f2bdSJiri Pirko } 15306c85f2bdSJiri Pirko 15313d249d4cSJiri Pirko static int team_init(struct net_device *dev) 15323d249d4cSJiri Pirko { 15333d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15343d249d4cSJiri Pirko int i; 1535358b8382SJiri Pirko int err; 15363d249d4cSJiri Pirko 15373d249d4cSJiri Pirko team->dev = dev; 153861dc3461SJiri Pirko mutex_init(&team->lock); 1539d299cd51SJiri Pirko team_set_no_mode(team); 15403d249d4cSJiri Pirko 15411c213bd2SWANG Cong team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); 15423d249d4cSJiri Pirko if (!team->pcpu_stats) 15433d249d4cSJiri Pirko return -ENOMEM; 15443d249d4cSJiri Pirko 15453d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 154619a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 15473d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 15488ff5105aSJiri Pirko err = team_queue_override_init(team); 15498ff5105aSJiri Pirko if (err) 15508ff5105aSJiri Pirko goto err_team_queue_override_init; 15513d249d4cSJiri Pirko 15523d249d4cSJiri Pirko team_adjust_ops(team); 15533d249d4cSJiri Pirko 15543d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 155580f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1556fc423ff0SJiri Pirko 1557fc423ff0SJiri Pirko team_notify_peers_init(team); 1558492b200eSJiri Pirko team_mcast_rejoin_init(team); 1559fc423ff0SJiri Pirko 1560358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1561358b8382SJiri Pirko if (err) 1562358b8382SJiri Pirko goto err_options_register; 15633d249d4cSJiri Pirko netif_carrier_off(dev); 15643d249d4cSJiri Pirko 15656c85f2bdSJiri Pirko team_set_lockdep_class(dev); 15666c85f2bdSJiri Pirko 15673d249d4cSJiri Pirko return 0; 1568358b8382SJiri Pirko 1569358b8382SJiri Pirko err_options_register: 1570492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1571fc423ff0SJiri Pirko team_notify_peers_fini(team); 15728ff5105aSJiri Pirko team_queue_override_fini(team); 15738ff5105aSJiri Pirko err_team_queue_override_init: 1574358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1575358b8382SJiri Pirko 1576358b8382SJiri Pirko return err; 15773d249d4cSJiri Pirko } 15783d249d4cSJiri Pirko 15793d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 15803d249d4cSJiri Pirko { 15813d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15823d249d4cSJiri Pirko struct team_port *port; 15833d249d4cSJiri Pirko struct team_port *tmp; 15843d249d4cSJiri Pirko 158561dc3461SJiri Pirko mutex_lock(&team->lock); 15863d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 15873d249d4cSJiri Pirko team_port_del(team, port->dev); 15883d249d4cSJiri Pirko 15893d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 15903d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 1591492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1592fc423ff0SJiri Pirko team_notify_peers_fini(team); 15938ff5105aSJiri Pirko team_queue_override_fini(team); 159461dc3461SJiri Pirko mutex_unlock(&team->lock); 15953d249d4cSJiri Pirko } 15963d249d4cSJiri Pirko 15973d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 15983d249d4cSJiri Pirko { 15993d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16003d249d4cSJiri Pirko 16013d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 16023d249d4cSJiri Pirko free_netdev(dev); 16033d249d4cSJiri Pirko } 16043d249d4cSJiri Pirko 16053d249d4cSJiri Pirko static int team_open(struct net_device *dev) 16063d249d4cSJiri Pirko { 16073d249d4cSJiri Pirko return 0; 16083d249d4cSJiri Pirko } 16093d249d4cSJiri Pirko 16103d249d4cSJiri Pirko static int team_close(struct net_device *dev) 16113d249d4cSJiri Pirko { 16123d249d4cSJiri Pirko return 0; 16133d249d4cSJiri Pirko } 16143d249d4cSJiri Pirko 16153d249d4cSJiri Pirko /* 16163d249d4cSJiri Pirko * note: already called with rcu_read_lock 16173d249d4cSJiri Pirko */ 16183d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 16193d249d4cSJiri Pirko { 16203d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16218ff5105aSJiri Pirko bool tx_success; 16223d249d4cSJiri Pirko unsigned int len = skb->len; 16233d249d4cSJiri Pirko 16248ff5105aSJiri Pirko tx_success = team_queue_override_transmit(team, skb); 16258ff5105aSJiri Pirko if (!tx_success) 16263d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 16273d249d4cSJiri Pirko if (tx_success) { 16283d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 16293d249d4cSJiri Pirko 16303d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 16313d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 16323d249d4cSJiri Pirko pcpu_stats->tx_packets++; 16333d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 16343d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 16353d249d4cSJiri Pirko } else { 16363d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 16373d249d4cSJiri Pirko } 16383d249d4cSJiri Pirko 16393d249d4cSJiri Pirko return NETDEV_TX_OK; 16403d249d4cSJiri Pirko } 16413d249d4cSJiri Pirko 1642f663dd9aSJason Wang static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, 164399932d4fSDaniel Borkmann void *accel_priv, select_queue_fallback_t fallback) 16446c85f2bdSJiri Pirko { 16456c85f2bdSJiri Pirko /* 16466c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 16476c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 16486c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 16496c85f2bdSJiri Pirko * way down to the team driver. 16506c85f2bdSJiri Pirko */ 16516c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 16526c85f2bdSJiri Pirko 16536c85f2bdSJiri Pirko /* 16546c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 16556c85f2bdSJiri Pirko */ 16566c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 16576c85f2bdSJiri Pirko 16586c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 16596c85f2bdSJiri Pirko do { 16606c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 16616c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 16626c85f2bdSJiri Pirko } 16636c85f2bdSJiri Pirko return txq; 16646c85f2bdSJiri Pirko } 16656c85f2bdSJiri Pirko 16663d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 16673d249d4cSJiri Pirko { 16683d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16693d249d4cSJiri Pirko struct team_port *port; 16703d249d4cSJiri Pirko int inc; 16713d249d4cSJiri Pirko 16723d249d4cSJiri Pirko rcu_read_lock(); 16733d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 16743d249d4cSJiri Pirko if (change & IFF_PROMISC) { 16753d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 16763d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 16773d249d4cSJiri Pirko } 16783d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 16793d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 16803d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 16813d249d4cSJiri Pirko } 16823d249d4cSJiri Pirko } 16833d249d4cSJiri Pirko rcu_read_unlock(); 16843d249d4cSJiri Pirko } 16853d249d4cSJiri Pirko 16863d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 16873d249d4cSJiri Pirko { 16883d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16893d249d4cSJiri Pirko struct team_port *port; 16903d249d4cSJiri Pirko 16913d249d4cSJiri Pirko rcu_read_lock(); 16923d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 169372b27032SVlad Yasevich dev_uc_sync_multiple(port->dev, dev); 169472b27032SVlad Yasevich dev_mc_sync_multiple(port->dev, dev); 16953d249d4cSJiri Pirko } 16963d249d4cSJiri Pirko rcu_read_unlock(); 16973d249d4cSJiri Pirko } 16983d249d4cSJiri Pirko 16993d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 17003d249d4cSJiri Pirko { 17011d76efe1SJiri Pirko struct sockaddr *addr = p; 17023d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17033d249d4cSJiri Pirko struct team_port *port; 17043d249d4cSJiri Pirko 17051d76efe1SJiri Pirko if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) 17061d76efe1SJiri Pirko return -EADDRNOTAVAIL; 17071d76efe1SJiri Pirko memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 17083d249d4cSJiri Pirko rcu_read_lock(); 17093d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 17101d76efe1SJiri Pirko if (team->ops.port_change_dev_addr) 17111d76efe1SJiri Pirko team->ops.port_change_dev_addr(team, port); 17123d249d4cSJiri Pirko rcu_read_unlock(); 17133d249d4cSJiri Pirko return 0; 17143d249d4cSJiri Pirko } 17153d249d4cSJiri Pirko 17163d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 17173d249d4cSJiri Pirko { 17183d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17193d249d4cSJiri Pirko struct team_port *port; 17203d249d4cSJiri Pirko int err; 17213d249d4cSJiri Pirko 17223d249d4cSJiri Pirko /* 17233d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 17243d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 17253d249d4cSJiri Pirko */ 172661dc3461SJiri Pirko mutex_lock(&team->lock); 17279d0d68faSJiri Pirko team->port_mtu_change_allowed = true; 17283d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17293d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 17303d249d4cSJiri Pirko if (err) { 17313d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 17323d249d4cSJiri Pirko port->dev->name); 17333d249d4cSJiri Pirko goto unwind; 17343d249d4cSJiri Pirko } 17353d249d4cSJiri Pirko } 17369d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 173761dc3461SJiri Pirko mutex_unlock(&team->lock); 17383d249d4cSJiri Pirko 17393d249d4cSJiri Pirko dev->mtu = new_mtu; 17403d249d4cSJiri Pirko 17413d249d4cSJiri Pirko return 0; 17423d249d4cSJiri Pirko 17433d249d4cSJiri Pirko unwind: 17443d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 17453d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 17469d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 174761dc3461SJiri Pirko mutex_unlock(&team->lock); 17483d249d4cSJiri Pirko 17493d249d4cSJiri Pirko return err; 17503d249d4cSJiri Pirko } 17513d249d4cSJiri Pirko 17523d249d4cSJiri Pirko static struct rtnl_link_stats64 * 17533d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 17543d249d4cSJiri Pirko { 17553d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17563d249d4cSJiri Pirko struct team_pcpu_stats *p; 17573d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 17583d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 17593d249d4cSJiri Pirko unsigned int start; 17603d249d4cSJiri Pirko int i; 17613d249d4cSJiri Pirko 17623d249d4cSJiri Pirko for_each_possible_cpu(i) { 17633d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 17643d249d4cSJiri Pirko do { 176557a7744eSEric W. Biederman start = u64_stats_fetch_begin_irq(&p->syncp); 17663d249d4cSJiri Pirko rx_packets = p->rx_packets; 17673d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 17683d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 17693d249d4cSJiri Pirko tx_packets = p->tx_packets; 17703d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 177157a7744eSEric W. Biederman } while (u64_stats_fetch_retry_irq(&p->syncp, start)); 17723d249d4cSJiri Pirko 17733d249d4cSJiri Pirko stats->rx_packets += rx_packets; 17743d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 17753d249d4cSJiri Pirko stats->multicast += rx_multicast; 17763d249d4cSJiri Pirko stats->tx_packets += tx_packets; 17773d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 17783d249d4cSJiri Pirko /* 17793d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 17803d249d4cSJiri Pirko * without syncp protection. 17813d249d4cSJiri Pirko */ 17823d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 17833d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 17843d249d4cSJiri Pirko } 17853d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 17863d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 17873d249d4cSJiri Pirko return stats; 17883d249d4cSJiri Pirko } 17893d249d4cSJiri Pirko 179080d5c368SPatrick McHardy static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) 17913d249d4cSJiri Pirko { 17923d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17933d249d4cSJiri Pirko struct team_port *port; 179487002b03SJiri Pirko int err; 17953d249d4cSJiri Pirko 179687002b03SJiri Pirko /* 179787002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 179887002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 179987002b03SJiri Pirko */ 180087002b03SJiri Pirko mutex_lock(&team->lock); 180187002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 180280d5c368SPatrick McHardy err = vlan_vid_add(port->dev, proto, vid); 180387002b03SJiri Pirko if (err) 180487002b03SJiri Pirko goto unwind; 18053d249d4cSJiri Pirko } 180687002b03SJiri Pirko mutex_unlock(&team->lock); 18078e586137SJiri Pirko 18088e586137SJiri Pirko return 0; 180987002b03SJiri Pirko 181087002b03SJiri Pirko unwind: 181187002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 181280d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 181387002b03SJiri Pirko mutex_unlock(&team->lock); 181487002b03SJiri Pirko 181587002b03SJiri Pirko return err; 18163d249d4cSJiri Pirko } 18173d249d4cSJiri Pirko 181880d5c368SPatrick McHardy static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) 18193d249d4cSJiri Pirko { 18203d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18213d249d4cSJiri Pirko struct team_port *port; 18223d249d4cSJiri Pirko 18233d249d4cSJiri Pirko rcu_read_lock(); 182487002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 182580d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 18263d249d4cSJiri Pirko rcu_read_unlock(); 18278e586137SJiri Pirko 18288e586137SJiri Pirko return 0; 18293d249d4cSJiri Pirko } 18303d249d4cSJiri Pirko 1831bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1832bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1833bd2d0837SJiri Pirko { 1834bd2d0837SJiri Pirko } 1835bd2d0837SJiri Pirko 1836bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1837bd2d0837SJiri Pirko { 1838bd2d0837SJiri Pirko struct team_port *port; 1839bd2d0837SJiri Pirko 1840bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1841bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1842bd2d0837SJiri Pirko } 1843bd2d0837SJiri Pirko 1844bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1845bd2d0837SJiri Pirko { 1846bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1847bd2d0837SJiri Pirko 1848bd2d0837SJiri Pirko mutex_lock(&team->lock); 1849bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1850bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1851bd2d0837SJiri Pirko } 1852bd2d0837SJiri Pirko 1853bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 1854a8779ec1SEric W. Biederman struct netpoll_info *npifo) 1855bd2d0837SJiri Pirko { 1856bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1857bd2d0837SJiri Pirko struct team_port *port; 18583324d024SJiri Pirko int err = 0; 1859bd2d0837SJiri Pirko 1860bd2d0837SJiri Pirko mutex_lock(&team->lock); 1861bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 1862a8779ec1SEric W. Biederman err = team_port_enable_netpoll(team, port); 1863bd2d0837SJiri Pirko if (err) { 1864bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1865bd2d0837SJiri Pirko break; 1866bd2d0837SJiri Pirko } 1867bd2d0837SJiri Pirko } 1868bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1869bd2d0837SJiri Pirko return err; 1870bd2d0837SJiri Pirko } 1871bd2d0837SJiri Pirko #endif 1872bd2d0837SJiri Pirko 18733d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 18743d249d4cSJiri Pirko { 18753d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18763d249d4cSJiri Pirko int err; 18773d249d4cSJiri Pirko 187861dc3461SJiri Pirko mutex_lock(&team->lock); 18793d249d4cSJiri Pirko err = team_port_add(team, port_dev); 188061dc3461SJiri Pirko mutex_unlock(&team->lock); 18813d249d4cSJiri Pirko return err; 18823d249d4cSJiri Pirko } 18833d249d4cSJiri Pirko 18843d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 18853d249d4cSJiri Pirko { 18863d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18873d249d4cSJiri Pirko int err; 18883d249d4cSJiri Pirko 188961dc3461SJiri Pirko mutex_lock(&team->lock); 18903d249d4cSJiri Pirko err = team_port_del(team, port_dev); 189161dc3461SJiri Pirko mutex_unlock(&team->lock); 18923d249d4cSJiri Pirko return err; 18933d249d4cSJiri Pirko } 18943d249d4cSJiri Pirko 1895234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1896234a8fd4SJiri Pirko netdev_features_t features) 1897234a8fd4SJiri Pirko { 1898234a8fd4SJiri Pirko struct team_port *port; 1899234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1900234a8fd4SJiri Pirko netdev_features_t mask; 1901234a8fd4SJiri Pirko 1902234a8fd4SJiri Pirko mask = features; 1903234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1904234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1905234a8fd4SJiri Pirko 1906234a8fd4SJiri Pirko rcu_read_lock(); 1907234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1908234a8fd4SJiri Pirko features = netdev_increment_features(features, 1909234a8fd4SJiri Pirko port->dev->features, 1910234a8fd4SJiri Pirko mask); 1911234a8fd4SJiri Pirko } 1912234a8fd4SJiri Pirko rcu_read_unlock(); 1913234a8fd4SJiri Pirko return features; 1914234a8fd4SJiri Pirko } 1915234a8fd4SJiri Pirko 19164cafe373SFlavio Leitner static int team_change_carrier(struct net_device *dev, bool new_carrier) 19174cafe373SFlavio Leitner { 1918e185483eSFlavio Leitner struct team *team = netdev_priv(dev); 1919e185483eSFlavio Leitner 1920e185483eSFlavio Leitner team->user_carrier_enabled = true; 1921e185483eSFlavio Leitner 19224cafe373SFlavio Leitner if (new_carrier) 19234cafe373SFlavio Leitner netif_carrier_on(dev); 19244cafe373SFlavio Leitner else 19254cafe373SFlavio Leitner netif_carrier_off(dev); 19264cafe373SFlavio Leitner return 0; 19274cafe373SFlavio Leitner } 19284cafe373SFlavio Leitner 19293d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 19303d249d4cSJiri Pirko .ndo_init = team_init, 19313d249d4cSJiri Pirko .ndo_uninit = team_uninit, 19323d249d4cSJiri Pirko .ndo_open = team_open, 19333d249d4cSJiri Pirko .ndo_stop = team_close, 19343d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 19356c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 19363d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 19373d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 19383d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 19393d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 19403d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 19413d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 19423d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 1943bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1944bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 1945bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 1946bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 1947bd2d0837SJiri Pirko #endif 19483d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 19493d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1950234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 19514cafe373SFlavio Leitner .ndo_change_carrier = team_change_carrier, 19523d249d4cSJiri Pirko }; 19533d249d4cSJiri Pirko 19547f51c587SFlavio Leitner /*********************** 19557f51c587SFlavio Leitner * ethtool interface 19567f51c587SFlavio Leitner ***********************/ 19577f51c587SFlavio Leitner 19587f51c587SFlavio Leitner static void team_ethtool_get_drvinfo(struct net_device *dev, 19597f51c587SFlavio Leitner struct ethtool_drvinfo *drvinfo) 19607f51c587SFlavio Leitner { 19613066af58SFlavio Leitner strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 19623066af58SFlavio Leitner strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); 19637f51c587SFlavio Leitner } 19647f51c587SFlavio Leitner 19657f51c587SFlavio Leitner static const struct ethtool_ops team_ethtool_ops = { 19667f51c587SFlavio Leitner .get_drvinfo = team_ethtool_get_drvinfo, 19677f51c587SFlavio Leitner .get_link = ethtool_op_get_link, 19687f51c587SFlavio Leitner }; 19693d249d4cSJiri Pirko 19703d249d4cSJiri Pirko /*********************** 19713d249d4cSJiri Pirko * rt netlink interface 19723d249d4cSJiri Pirko ***********************/ 19733d249d4cSJiri Pirko 19741d76efe1SJiri Pirko static void team_setup_by_port(struct net_device *dev, 19751d76efe1SJiri Pirko struct net_device *port_dev) 19761d76efe1SJiri Pirko { 19771d76efe1SJiri Pirko dev->header_ops = port_dev->header_ops; 19781d76efe1SJiri Pirko dev->type = port_dev->type; 19791d76efe1SJiri Pirko dev->hard_header_len = port_dev->hard_header_len; 19801d76efe1SJiri Pirko dev->addr_len = port_dev->addr_len; 19811d76efe1SJiri Pirko dev->mtu = port_dev->mtu; 19821d76efe1SJiri Pirko memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); 198393af7357SBjørn Mork eth_hw_addr_inherit(dev, port_dev); 19841d76efe1SJiri Pirko } 19851d76efe1SJiri Pirko 19861d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 19871d76efe1SJiri Pirko struct net_device *port_dev) 19881d76efe1SJiri Pirko { 19891d76efe1SJiri Pirko struct team *team = netdev_priv(dev); 19901d76efe1SJiri Pirko char *portname = port_dev->name; 19911d76efe1SJiri Pirko int err; 19921d76efe1SJiri Pirko 19931d76efe1SJiri Pirko if (dev->type == port_dev->type) 19941d76efe1SJiri Pirko return 0; 19951d76efe1SJiri Pirko if (!list_empty(&team->port_list)) { 19961d76efe1SJiri Pirko netdev_err(dev, "Device %s is of different type\n", portname); 19971d76efe1SJiri Pirko return -EBUSY; 19981d76efe1SJiri Pirko } 19991d76efe1SJiri Pirko err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); 20001d76efe1SJiri Pirko err = notifier_to_errno(err); 20011d76efe1SJiri Pirko if (err) { 20021d76efe1SJiri Pirko netdev_err(dev, "Refused to change device type\n"); 20031d76efe1SJiri Pirko return err; 20041d76efe1SJiri Pirko } 20051d76efe1SJiri Pirko dev_uc_flush(dev); 20061d76efe1SJiri Pirko dev_mc_flush(dev); 20071d76efe1SJiri Pirko team_setup_by_port(dev, port_dev); 20081d76efe1SJiri Pirko call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); 20091d76efe1SJiri Pirko return 0; 20101d76efe1SJiri Pirko } 20111d76efe1SJiri Pirko 20123d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 20133d249d4cSJiri Pirko { 20143d249d4cSJiri Pirko ether_setup(dev); 20153d249d4cSJiri Pirko 20163d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 20177f51c587SFlavio Leitner dev->ethtool_ops = &team_ethtool_ops; 20183d249d4cSJiri Pirko dev->destructor = team_destructor; 20193d249d4cSJiri Pirko dev->tx_queue_len = 0; 20203d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 20213d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 20223d249d4cSJiri Pirko 20233d249d4cSJiri Pirko /* 20243d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 20253d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 20263d249d4cSJiri Pirko * Let this up to underlay drivers. 20273d249d4cSJiri Pirko */ 20285a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 20293d249d4cSJiri Pirko 20303d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 20313d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 203299301ba1SWeilong Chen 203399301ba1SWeilong Chen /* Don't allow team devices to change network namespaces. */ 203499301ba1SWeilong Chen dev->features |= NETIF_F_NETNS_LOCAL; 203599301ba1SWeilong Chen 20363ed71471SJiri Pirko dev->hw_features = TEAM_VLAN_FEATURES | 2037f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_TX | 2038f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_RX | 2039f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_FILTER; 20403d249d4cSJiri Pirko 20413ed71471SJiri Pirko dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); 20423d249d4cSJiri Pirko dev->features |= dev->hw_features; 20433d249d4cSJiri Pirko } 20443d249d4cSJiri Pirko 20453d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 20463d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 20473d249d4cSJiri Pirko { 20483d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 20497ce5d222SDanny Kukawka eth_hw_addr_random(dev); 20503d249d4cSJiri Pirko 2051ff204cceSToshiaki Makita return register_netdevice(dev); 20523d249d4cSJiri Pirko } 20533d249d4cSJiri Pirko 20543d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 20553d249d4cSJiri Pirko { 20563d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 20573d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 20583d249d4cSJiri Pirko return -EINVAL; 20593d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 20603d249d4cSJiri Pirko return -EADDRNOTAVAIL; 20613d249d4cSJiri Pirko } 20623d249d4cSJiri Pirko return 0; 20633d249d4cSJiri Pirko } 20643d249d4cSJiri Pirko 20656c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 20666c85f2bdSJiri Pirko { 20676c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 20686c85f2bdSJiri Pirko } 20696c85f2bdSJiri Pirko 20706c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 20716c85f2bdSJiri Pirko { 20726c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 20736c85f2bdSJiri Pirko } 20746c85f2bdSJiri Pirko 20753d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 20763d249d4cSJiri Pirko .kind = DRV_NAME, 20773d249d4cSJiri Pirko .priv_size = sizeof(struct team), 20783d249d4cSJiri Pirko .setup = team_setup, 20793d249d4cSJiri Pirko .newlink = team_newlink, 20803d249d4cSJiri Pirko .validate = team_validate, 20816c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 20826c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 20833d249d4cSJiri Pirko }; 20843d249d4cSJiri Pirko 20853d249d4cSJiri Pirko 20863d249d4cSJiri Pirko /*********************************** 20873d249d4cSJiri Pirko * Generic netlink custom interface 20883d249d4cSJiri Pirko ***********************************/ 20893d249d4cSJiri Pirko 20903d249d4cSJiri Pirko static struct genl_family team_nl_family = { 20913d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 20923d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 20933d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 20943d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 20953d249d4cSJiri Pirko .netnsok = true, 20963d249d4cSJiri Pirko }; 20973d249d4cSJiri Pirko 20983d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 20993d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 21003d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 21013d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 21023d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 21033d249d4cSJiri Pirko }; 21043d249d4cSJiri Pirko 21053d249d4cSJiri Pirko static const struct nla_policy 21063d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 21073d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 21083d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 21093d249d4cSJiri Pirko .type = NLA_STRING, 21103d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 21113d249d4cSJiri Pirko }, 21123d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 21133d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 21142615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 21153d249d4cSJiri Pirko }; 21163d249d4cSJiri Pirko 21173d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 21183d249d4cSJiri Pirko { 21193d249d4cSJiri Pirko struct sk_buff *msg; 21203d249d4cSJiri Pirko void *hdr; 21213d249d4cSJiri Pirko int err; 21223d249d4cSJiri Pirko 212358050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 21243d249d4cSJiri Pirko if (!msg) 21253d249d4cSJiri Pirko return -ENOMEM; 21263d249d4cSJiri Pirko 212715e47304SEric W. Biederman hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, 21283d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 2129a326e6ddSWei Yongjun if (!hdr) { 2130a326e6ddSWei Yongjun err = -EMSGSIZE; 21313d249d4cSJiri Pirko goto err_msg_put; 21323d249d4cSJiri Pirko } 21333d249d4cSJiri Pirko 21343d249d4cSJiri Pirko genlmsg_end(msg, hdr); 21353d249d4cSJiri Pirko 213615e47304SEric W. Biederman return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); 21373d249d4cSJiri Pirko 21383d249d4cSJiri Pirko err_msg_put: 21393d249d4cSJiri Pirko nlmsg_free(msg); 21403d249d4cSJiri Pirko 21413d249d4cSJiri Pirko return err; 21423d249d4cSJiri Pirko } 21433d249d4cSJiri Pirko 21443d249d4cSJiri Pirko /* 21453d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 21468c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 21473d249d4cSJiri Pirko */ 21483d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 21493d249d4cSJiri Pirko { 21503d249d4cSJiri Pirko struct net *net = genl_info_net(info); 21513d249d4cSJiri Pirko int ifindex; 21523d249d4cSJiri Pirko struct net_device *dev; 21533d249d4cSJiri Pirko struct team *team; 21543d249d4cSJiri Pirko 21553d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 21563d249d4cSJiri Pirko return NULL; 21573d249d4cSJiri Pirko 21583d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 21598c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 21603d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 21618c0713a5SJiri Pirko if (dev) 21628c0713a5SJiri Pirko dev_put(dev); 21633d249d4cSJiri Pirko return NULL; 21643d249d4cSJiri Pirko } 21653d249d4cSJiri Pirko 21663d249d4cSJiri Pirko team = netdev_priv(dev); 216761dc3461SJiri Pirko mutex_lock(&team->lock); 21683d249d4cSJiri Pirko return team; 21693d249d4cSJiri Pirko } 21703d249d4cSJiri Pirko 21713d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 21723d249d4cSJiri Pirko { 217361dc3461SJiri Pirko mutex_unlock(&team->lock); 21748c0713a5SJiri Pirko dev_put(team->dev); 21753d249d4cSJiri Pirko } 21763d249d4cSJiri Pirko 21779b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 217815e47304SEric W. Biederman struct team *team, u32 portid); 21799b00cf2dSJiri Pirko 218015e47304SEric W. Biederman static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) 21819b00cf2dSJiri Pirko { 218215e47304SEric W. Biederman return genlmsg_unicast(dev_net(team->dev), skb, portid); 21839b00cf2dSJiri Pirko } 21849b00cf2dSJiri Pirko 218501048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 218601048d9aSJiri Pirko struct team_option_inst *opt_inst) 21873d249d4cSJiri Pirko { 21883d249d4cSJiri Pirko struct nlattr *option_item; 218980f7c668SJiri Pirko struct team_option *option = opt_inst->option; 21909b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 219180f7c668SJiri Pirko struct team_gsetter_ctx ctx; 219201048d9aSJiri Pirko int err; 21933d249d4cSJiri Pirko 21949b00cf2dSJiri Pirko ctx.info = opt_inst_info; 21959b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 21969b00cf2dSJiri Pirko if (err) 21979b00cf2dSJiri Pirko return err; 21989b00cf2dSJiri Pirko 21993d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 22003d249d4cSJiri Pirko if (!option_item) 22019b00cf2dSJiri Pirko return -EMSGSIZE; 220285d59a87SJiri Pirko 22039b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 22049b00cf2dSJiri Pirko goto nest_cancel; 220585d59a87SJiri Pirko if (opt_inst_info->port && 220680f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 220785d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 22089b00cf2dSJiri Pirko goto nest_cancel; 2209b1303326SJiri Pirko if (opt_inst->option->array_size && 2210b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 221185d59a87SJiri Pirko opt_inst_info->array_index)) 22129b00cf2dSJiri Pirko goto nest_cancel; 221385d59a87SJiri Pirko 22143d249d4cSJiri Pirko switch (option->type) { 22153d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 221686ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 22179b00cf2dSJiri Pirko goto nest_cancel; 221801048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 22199b00cf2dSJiri Pirko goto nest_cancel; 22203d249d4cSJiri Pirko break; 22213d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 222286ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 22239b00cf2dSJiri Pirko goto nest_cancel; 222486ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 222580f7c668SJiri Pirko ctx.data.str_val)) 22269b00cf2dSJiri Pirko goto nest_cancel; 22273d249d4cSJiri Pirko break; 22282615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 22292615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 22309b00cf2dSJiri Pirko goto nest_cancel; 223101048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 223201048d9aSJiri Pirko ctx.data.bin_val.ptr)) 22339b00cf2dSJiri Pirko goto nest_cancel; 22342615598fSJiri Pirko break; 223514f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 223614f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 22379b00cf2dSJiri Pirko goto nest_cancel; 223814f066baSJiri Pirko if (ctx.data.bool_val && 223914f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 22409b00cf2dSJiri Pirko goto nest_cancel; 224114f066baSJiri Pirko break; 224269821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 224369821638SJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) 224469821638SJiri Pirko goto nest_cancel; 224569821638SJiri Pirko if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) 224669821638SJiri Pirko goto nest_cancel; 224769821638SJiri Pirko break; 22483d249d4cSJiri Pirko default: 22493d249d4cSJiri Pirko BUG(); 22503d249d4cSJiri Pirko } 22519b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 22529b00cf2dSJiri Pirko goto nest_cancel; 22539b00cf2dSJiri Pirko if (opt_inst->changed) { 22549b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 22559b00cf2dSJiri Pirko goto nest_cancel; 22569b00cf2dSJiri Pirko opt_inst->changed = false; 22579b00cf2dSJiri Pirko } 22583d249d4cSJiri Pirko nla_nest_end(skb, option_item); 225901048d9aSJiri Pirko return 0; 226001048d9aSJiri Pirko 22619b00cf2dSJiri Pirko nest_cancel: 22629b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 22639b00cf2dSJiri Pirko return -EMSGSIZE; 226401048d9aSJiri Pirko } 226501048d9aSJiri Pirko 22669b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 226715e47304SEric W. Biederman struct team *team, u32 portid, 22689b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 22699b00cf2dSJiri Pirko { 22709b00cf2dSJiri Pirko int err; 22719b00cf2dSJiri Pirko 22729b00cf2dSJiri Pirko if (*pskb) { 227315e47304SEric W. Biederman err = send_func(*pskb, team, portid); 22749b00cf2dSJiri Pirko if (err) 22759b00cf2dSJiri Pirko return err; 22769b00cf2dSJiri Pirko } 227758050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 22789b00cf2dSJiri Pirko if (!*pskb) 22799b00cf2dSJiri Pirko return -ENOMEM; 22809b00cf2dSJiri Pirko return 0; 22819b00cf2dSJiri Pirko } 22829b00cf2dSJiri Pirko 228315e47304SEric W. Biederman static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, 22849b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 228501048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 228601048d9aSJiri Pirko { 228701048d9aSJiri Pirko struct nlattr *option_list; 22889b00cf2dSJiri Pirko struct nlmsghdr *nlh; 228901048d9aSJiri Pirko void *hdr; 229001048d9aSJiri Pirko struct team_option_inst *opt_inst; 229101048d9aSJiri Pirko int err; 22929b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 22939b00cf2dSJiri Pirko bool incomplete; 22949b00cf2dSJiri Pirko int i; 229501048d9aSJiri Pirko 22969b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 22979b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 22989b00cf2dSJiri Pirko 22999b00cf2dSJiri Pirko start_again: 230015e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 23019b00cf2dSJiri Pirko if (err) 23029b00cf2dSJiri Pirko return err; 23039b00cf2dSJiri Pirko 230415e47304SEric W. Biederman hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 230501048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 2306a326e6ddSWei Yongjun if (!hdr) 2307a326e6ddSWei Yongjun return -EMSGSIZE; 230801048d9aSJiri Pirko 230901048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 231001048d9aSJiri Pirko goto nla_put_failure; 231101048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 231201048d9aSJiri Pirko if (!option_list) 231301048d9aSJiri Pirko goto nla_put_failure; 231401048d9aSJiri Pirko 23159b00cf2dSJiri Pirko i = 0; 23169b00cf2dSJiri Pirko incomplete = false; 23179b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 231801048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 23199b00cf2dSJiri Pirko if (err) { 23209b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 23219b00cf2dSJiri Pirko if (!i) 232201048d9aSJiri Pirko goto errout; 23239b00cf2dSJiri Pirko incomplete = true; 23249b00cf2dSJiri Pirko break; 23259b00cf2dSJiri Pirko } 23269b00cf2dSJiri Pirko goto errout; 23279b00cf2dSJiri Pirko } 23289b00cf2dSJiri Pirko i++; 23293d249d4cSJiri Pirko } 23303d249d4cSJiri Pirko 23313d249d4cSJiri Pirko nla_nest_end(skb, option_list); 23329b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 23339b00cf2dSJiri Pirko if (incomplete) 23349b00cf2dSJiri Pirko goto start_again; 23359b00cf2dSJiri Pirko 23369b00cf2dSJiri Pirko send_done: 233715e47304SEric W. Biederman nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 23389b00cf2dSJiri Pirko if (!nlh) { 233915e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 23409b00cf2dSJiri Pirko if (err) 23419b00cf2dSJiri Pirko goto errout; 23429b00cf2dSJiri Pirko goto send_done; 23439b00cf2dSJiri Pirko } 23449b00cf2dSJiri Pirko 234515e47304SEric W. Biederman return send_func(skb, team, portid); 23463d249d4cSJiri Pirko 23473d249d4cSJiri Pirko nla_put_failure: 234880f7c668SJiri Pirko err = -EMSGSIZE; 234980f7c668SJiri Pirko errout: 23503d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 23519b00cf2dSJiri Pirko nlmsg_free(skb); 235280f7c668SJiri Pirko return err; 23533d249d4cSJiri Pirko } 23543d249d4cSJiri Pirko 23553d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 23563d249d4cSJiri Pirko { 23573d249d4cSJiri Pirko struct team *team; 23589b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 23593d249d4cSJiri Pirko int err; 23609b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 23613d249d4cSJiri Pirko 23623d249d4cSJiri Pirko team = team_nl_team_get(info); 23633d249d4cSJiri Pirko if (!team) 23643d249d4cSJiri Pirko return -EINVAL; 23653d249d4cSJiri Pirko 23669b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 23679b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 236815e47304SEric W. Biederman err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, 23699b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 23709b00cf2dSJiri Pirko &sel_opt_inst_list); 23713d249d4cSJiri Pirko 23723d249d4cSJiri Pirko team_nl_team_put(team); 23733d249d4cSJiri Pirko 23743d249d4cSJiri Pirko return err; 23753d249d4cSJiri Pirko } 23763d249d4cSJiri Pirko 23772fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 23782fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 23792fcdb2c9SJiri Pirko 23803d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 23813d249d4cSJiri Pirko { 23823d249d4cSJiri Pirko struct team *team; 23833d249d4cSJiri Pirko int err = 0; 23843d249d4cSJiri Pirko int i; 23853d249d4cSJiri Pirko struct nlattr *nl_option; 23862fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 23873d249d4cSJiri Pirko 23883d249d4cSJiri Pirko team = team_nl_team_get(info); 23893d249d4cSJiri Pirko if (!team) 23903d249d4cSJiri Pirko return -EINVAL; 23913d249d4cSJiri Pirko 23923d249d4cSJiri Pirko err = -EINVAL; 23933d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 23943d249d4cSJiri Pirko err = -EINVAL; 23953d249d4cSJiri Pirko goto team_put; 23963d249d4cSJiri Pirko } 23973d249d4cSJiri Pirko 23983d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 239980f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 2400b1303326SJiri Pirko struct nlattr *attr; 240114f066baSJiri Pirko struct nlattr *attr_data; 24023d249d4cSJiri Pirko enum team_option_type opt_type; 240380f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 2404b1303326SJiri Pirko u32 opt_array_index = 0; 2405b1303326SJiri Pirko bool opt_is_array = false; 240680f7c668SJiri Pirko struct team_option_inst *opt_inst; 24073d249d4cSJiri Pirko char *opt_name; 24083d249d4cSJiri Pirko bool opt_found = false; 24093d249d4cSJiri Pirko 24103d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 24113d249d4cSJiri Pirko err = -EINVAL; 24123d249d4cSJiri Pirko goto team_put; 24133d249d4cSJiri Pirko } 241480f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 24153d249d4cSJiri Pirko nl_option, team_nl_option_policy); 24163d249d4cSJiri Pirko if (err) 24173d249d4cSJiri Pirko goto team_put; 241880f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 241914f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 24203d249d4cSJiri Pirko err = -EINVAL; 24213d249d4cSJiri Pirko goto team_put; 24223d249d4cSJiri Pirko } 242380f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 24243d249d4cSJiri Pirko case NLA_U32: 24253d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 24263d249d4cSJiri Pirko break; 24273d249d4cSJiri Pirko case NLA_STRING: 24283d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 24293d249d4cSJiri Pirko break; 24302615598fSJiri Pirko case NLA_BINARY: 24312615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 24322615598fSJiri Pirko break; 243314f066baSJiri Pirko case NLA_FLAG: 243414f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 243514f066baSJiri Pirko break; 243669821638SJiri Pirko case NLA_S32: 243769821638SJiri Pirko opt_type = TEAM_OPTION_TYPE_S32; 243869821638SJiri Pirko break; 24393d249d4cSJiri Pirko default: 24403d249d4cSJiri Pirko goto team_put; 24413d249d4cSJiri Pirko } 24423d249d4cSJiri Pirko 244314f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 244414f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 244514f066baSJiri Pirko err = -EINVAL; 244614f066baSJiri Pirko goto team_put; 244714f066baSJiri Pirko } 244814f066baSJiri Pirko 244980f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 2450b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 2451b1303326SJiri Pirko if (attr) 2452b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 2453b1303326SJiri Pirko 2454b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 2455b1303326SJiri Pirko if (attr) { 2456b1303326SJiri Pirko opt_is_array = true; 2457b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 2458b1303326SJiri Pirko } 24593d249d4cSJiri Pirko 246080f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 246180f7c668SJiri Pirko struct team_option *option = opt_inst->option; 246280f7c668SJiri Pirko struct team_gsetter_ctx ctx; 246385d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 246480f7c668SJiri Pirko int tmp_ifindex; 246580f7c668SJiri Pirko 246685d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 246785d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 246885d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 24693d249d4cSJiri Pirko if (option->type != opt_type || 247080f7c668SJiri Pirko strcmp(option->name, opt_name) || 2471b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2472b1303326SJiri Pirko (option->array_size && !opt_is_array) || 247385d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 24743d249d4cSJiri Pirko continue; 24753d249d4cSJiri Pirko opt_found = true; 247685d59a87SJiri Pirko ctx.info = opt_inst_info; 24773d249d4cSJiri Pirko switch (opt_type) { 24783d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 247914f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 24803d249d4cSJiri Pirko break; 24813d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 248214f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 24832615598fSJiri Pirko err = -EINVAL; 24842615598fSJiri Pirko goto team_put; 24852615598fSJiri Pirko } 248614f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 24873d249d4cSJiri Pirko break; 24882615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 248914f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 249014f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 249114f066baSJiri Pirko break; 249214f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 249314f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 24942615598fSJiri Pirko break; 249569821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 249669821638SJiri Pirko ctx.data.s32_val = nla_get_s32(attr_data); 249769821638SJiri Pirko break; 24983d249d4cSJiri Pirko default: 24993d249d4cSJiri Pirko BUG(); 25003d249d4cSJiri Pirko } 250180f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 25023d249d4cSJiri Pirko if (err) 25033d249d4cSJiri Pirko goto team_put; 25042fcdb2c9SJiri Pirko opt_inst->changed = true; 25052fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 25063d249d4cSJiri Pirko } 25073d249d4cSJiri Pirko if (!opt_found) { 25083d249d4cSJiri Pirko err = -ENOENT; 25093d249d4cSJiri Pirko goto team_put; 25103d249d4cSJiri Pirko } 25113d249d4cSJiri Pirko } 25123d249d4cSJiri Pirko 25132fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 25142fcdb2c9SJiri Pirko 25153d249d4cSJiri Pirko team_put: 25163d249d4cSJiri Pirko team_nl_team_put(team); 25173d249d4cSJiri Pirko 25183d249d4cSJiri Pirko return err; 25193d249d4cSJiri Pirko } 25203d249d4cSJiri Pirko 2521d90f889eSJiri Pirko static int team_nl_fill_one_port_get(struct sk_buff *skb, 2522d90f889eSJiri Pirko struct team_port *port) 2523d90f889eSJiri Pirko { 2524d90f889eSJiri Pirko struct nlattr *port_item; 2525d90f889eSJiri Pirko 2526d90f889eSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 2527d90f889eSJiri Pirko if (!port_item) 2528d90f889eSJiri Pirko goto nest_cancel; 2529d90f889eSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 2530d90f889eSJiri Pirko goto nest_cancel; 2531d90f889eSJiri Pirko if (port->changed) { 2532d90f889eSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 2533d90f889eSJiri Pirko goto nest_cancel; 2534d90f889eSJiri Pirko port->changed = false; 2535d90f889eSJiri Pirko } 2536d90f889eSJiri Pirko if ((port->removed && 2537d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 2538d90f889eSJiri Pirko (port->state.linkup && 2539d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 2540d90f889eSJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 2541d90f889eSJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 2542d90f889eSJiri Pirko goto nest_cancel; 2543d90f889eSJiri Pirko nla_nest_end(skb, port_item); 2544d90f889eSJiri Pirko return 0; 2545d90f889eSJiri Pirko 2546d90f889eSJiri Pirko nest_cancel: 2547d90f889eSJiri Pirko nla_nest_cancel(skb, port_item); 2548d90f889eSJiri Pirko return -EMSGSIZE; 2549d90f889eSJiri Pirko } 2550d90f889eSJiri Pirko 2551d90f889eSJiri Pirko static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, 2552d90f889eSJiri Pirko int flags, team_nl_send_func_t *send_func, 2553d90f889eSJiri Pirko struct team_port *one_port) 25543d249d4cSJiri Pirko { 25553d249d4cSJiri Pirko struct nlattr *port_list; 2556d90f889eSJiri Pirko struct nlmsghdr *nlh; 25573d249d4cSJiri Pirko void *hdr; 25583d249d4cSJiri Pirko struct team_port *port; 2559d90f889eSJiri Pirko int err; 2560d90f889eSJiri Pirko struct sk_buff *skb = NULL; 2561d90f889eSJiri Pirko bool incomplete; 2562d90f889eSJiri Pirko int i; 25633d249d4cSJiri Pirko 25643f3e7ce4SJiri Pirko port = list_first_entry_or_null(&team->port_list, 25653f3e7ce4SJiri Pirko struct team_port, list); 2566d90f889eSJiri Pirko 2567d90f889eSJiri Pirko start_again: 2568d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2569d90f889eSJiri Pirko if (err) 2570d90f889eSJiri Pirko return err; 2571d90f889eSJiri Pirko 2572d90f889eSJiri Pirko hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 25733d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 2574a326e6ddSWei Yongjun if (!hdr) 2575a326e6ddSWei Yongjun return -EMSGSIZE; 25763d249d4cSJiri Pirko 257786ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 257886ebb02dSDavid S. Miller goto nla_put_failure; 25793d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 25803d249d4cSJiri Pirko if (!port_list) 25813221c646SJiri Pirko goto nla_put_failure; 25823d249d4cSJiri Pirko 2583d90f889eSJiri Pirko i = 0; 2584d90f889eSJiri Pirko incomplete = false; 25853d249d4cSJiri Pirko 2586d90f889eSJiri Pirko /* If one port is selected, called wants to send port list containing 2587d90f889eSJiri Pirko * only this port. Otherwise go through all listed ports and send all 2588d90f889eSJiri Pirko */ 2589d90f889eSJiri Pirko if (one_port) { 2590d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, one_port); 2591d90f889eSJiri Pirko if (err) 2592d90f889eSJiri Pirko goto errout; 25933f3e7ce4SJiri Pirko } else if (port) { 25943f3e7ce4SJiri Pirko list_for_each_entry_from(port, &team->port_list, list) { 2595d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, port); 2596d90f889eSJiri Pirko if (err) { 2597d90f889eSJiri Pirko if (err == -EMSGSIZE) { 2598d90f889eSJiri Pirko if (!i) 2599d90f889eSJiri Pirko goto errout; 2600d90f889eSJiri Pirko incomplete = true; 2601d90f889eSJiri Pirko break; 2602b82b9183SJiri Pirko } 2603d90f889eSJiri Pirko goto errout; 2604d90f889eSJiri Pirko } 2605d90f889eSJiri Pirko i++; 2606d90f889eSJiri Pirko } 26073d249d4cSJiri Pirko } 26083d249d4cSJiri Pirko 26093d249d4cSJiri Pirko nla_nest_end(skb, port_list); 2610d90f889eSJiri Pirko genlmsg_end(skb, hdr); 2611d90f889eSJiri Pirko if (incomplete) 2612d90f889eSJiri Pirko goto start_again; 26133d249d4cSJiri Pirko 2614d90f889eSJiri Pirko send_done: 2615d90f889eSJiri Pirko nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 2616d90f889eSJiri Pirko if (!nlh) { 2617d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2618d90f889eSJiri Pirko if (err) 2619d90f889eSJiri Pirko goto errout; 2620d90f889eSJiri Pirko goto send_done; 26213d249d4cSJiri Pirko } 26223d249d4cSJiri Pirko 2623d90f889eSJiri Pirko return send_func(skb, team, portid); 2624d90f889eSJiri Pirko 2625d90f889eSJiri Pirko nla_put_failure: 2626d90f889eSJiri Pirko err = -EMSGSIZE; 2627d90f889eSJiri Pirko errout: 2628d90f889eSJiri Pirko genlmsg_cancel(skb, hdr); 2629d90f889eSJiri Pirko nlmsg_free(skb); 2630d90f889eSJiri Pirko return err; 26313d249d4cSJiri Pirko } 26323d249d4cSJiri Pirko 26333d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 26343d249d4cSJiri Pirko struct genl_info *info) 26353d249d4cSJiri Pirko { 26363d249d4cSJiri Pirko struct team *team; 26373d249d4cSJiri Pirko int err; 26383d249d4cSJiri Pirko 26393d249d4cSJiri Pirko team = team_nl_team_get(info); 26403d249d4cSJiri Pirko if (!team) 26413d249d4cSJiri Pirko return -EINVAL; 26423d249d4cSJiri Pirko 2643d90f889eSJiri Pirko err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, 2644d90f889eSJiri Pirko NLM_F_ACK, team_nl_send_unicast, NULL); 26453d249d4cSJiri Pirko 26463d249d4cSJiri Pirko team_nl_team_put(team); 26473d249d4cSJiri Pirko 26483d249d4cSJiri Pirko return err; 26493d249d4cSJiri Pirko } 26503d249d4cSJiri Pirko 26514534de83SJohannes Berg static const struct genl_ops team_nl_ops[] = { 26523d249d4cSJiri Pirko { 26533d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 26543d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 26553d249d4cSJiri Pirko .policy = team_nl_policy, 26563d249d4cSJiri Pirko }, 26573d249d4cSJiri Pirko { 26583d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 26593d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 26603d249d4cSJiri Pirko .policy = team_nl_policy, 26613d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 26623d249d4cSJiri Pirko }, 26633d249d4cSJiri Pirko { 26643d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 26653d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 26663d249d4cSJiri Pirko .policy = team_nl_policy, 26673d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 26683d249d4cSJiri Pirko }, 26693d249d4cSJiri Pirko { 26703d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 26713d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 26723d249d4cSJiri Pirko .policy = team_nl_policy, 26733d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 26743d249d4cSJiri Pirko }, 26753d249d4cSJiri Pirko }; 26763d249d4cSJiri Pirko 26772a94fe48SJohannes Berg static const struct genl_multicast_group team_nl_mcgrps[] = { 26782a94fe48SJohannes Berg { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, 26793d249d4cSJiri Pirko }; 26803d249d4cSJiri Pirko 26819b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 268215e47304SEric W. Biederman struct team *team, u32 portid) 26839b00cf2dSJiri Pirko { 268468eb5503SJohannes Berg return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), 26852a94fe48SJohannes Berg skb, 0, 0, GFP_KERNEL); 26869b00cf2dSJiri Pirko } 26879b00cf2dSJiri Pirko 268801048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 268901048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 26903d249d4cSJiri Pirko { 26919b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 26929b00cf2dSJiri Pirko sel_opt_inst_list); 26933d249d4cSJiri Pirko } 26943d249d4cSJiri Pirko 2695d90f889eSJiri Pirko static int team_nl_send_event_port_get(struct team *team, 2696d90f889eSJiri Pirko struct team_port *port) 26973d249d4cSJiri Pirko { 2698d90f889eSJiri Pirko return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, 2699d90f889eSJiri Pirko port); 27003d249d4cSJiri Pirko } 27013d249d4cSJiri Pirko 27023d249d4cSJiri Pirko static int team_nl_init(void) 27033d249d4cSJiri Pirko { 27042a94fe48SJohannes Berg return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, 27052a94fe48SJohannes Berg team_nl_mcgrps); 27063d249d4cSJiri Pirko } 27073d249d4cSJiri Pirko 27083d249d4cSJiri Pirko static void team_nl_fini(void) 27093d249d4cSJiri Pirko { 27103d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 27113d249d4cSJiri Pirko } 27123d249d4cSJiri Pirko 27133d249d4cSJiri Pirko 27143d249d4cSJiri Pirko /****************** 27153d249d4cSJiri Pirko * Change checkers 27163d249d4cSJiri Pirko ******************/ 27173d249d4cSJiri Pirko 2718b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 27193d249d4cSJiri Pirko { 27203d249d4cSJiri Pirko int err; 272101048d9aSJiri Pirko struct team_option_inst *opt_inst; 272201048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 27233d249d4cSJiri Pirko 272401048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 272501048d9aSJiri Pirko if (opt_inst->changed) 272601048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 272701048d9aSJiri Pirko } 272801048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 27290c7517e9SJiri Pirko if (err && err != -ESRCH) 27309b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 27319b00cf2dSJiri Pirko err); 27323d249d4cSJiri Pirko } 27333d249d4cSJiri Pirko 27343d249d4cSJiri Pirko /* rtnl lock is held */ 273510f3f51dSJiri Pirko 273610f3f51dSJiri Pirko static void __team_port_change_send(struct team_port *port, bool linkup) 27373d249d4cSJiri Pirko { 27383d249d4cSJiri Pirko int err; 27393d249d4cSJiri Pirko 2740b82b9183SJiri Pirko port->changed = true; 274171472ec1SJiri Pirko port->state.linkup = linkup; 274271472ec1SJiri Pirko team_refresh_port_linkup(port); 27433d249d4cSJiri Pirko if (linkup) { 27443d249d4cSJiri Pirko struct ethtool_cmd ecmd; 27453d249d4cSJiri Pirko 27463d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 27473d249d4cSJiri Pirko if (!err) { 274871472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 274971472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 27503d249d4cSJiri Pirko goto send_event; 27513d249d4cSJiri Pirko } 27523d249d4cSJiri Pirko } 275371472ec1SJiri Pirko port->state.speed = 0; 275471472ec1SJiri Pirko port->state.duplex = 0; 27553d249d4cSJiri Pirko 27563d249d4cSJiri Pirko send_event: 2757d90f889eSJiri Pirko err = team_nl_send_event_port_get(port->team, port); 27580c7517e9SJiri Pirko if (err && err != -ESRCH) 27590c7517e9SJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", 27600c7517e9SJiri Pirko port->dev->name, err); 27613d249d4cSJiri Pirko 27623d249d4cSJiri Pirko } 27633d249d4cSJiri Pirko 276406a7fc42SFlavio Leitner static void __team_carrier_check(struct team *team) 276506a7fc42SFlavio Leitner { 276606a7fc42SFlavio Leitner struct team_port *port; 276706a7fc42SFlavio Leitner bool team_linkup; 276806a7fc42SFlavio Leitner 2769e185483eSFlavio Leitner if (team->user_carrier_enabled) 2770e185483eSFlavio Leitner return; 2771e185483eSFlavio Leitner 277206a7fc42SFlavio Leitner team_linkup = false; 277306a7fc42SFlavio Leitner list_for_each_entry(port, &team->port_list, list) { 277406a7fc42SFlavio Leitner if (port->linkup) { 277506a7fc42SFlavio Leitner team_linkup = true; 277606a7fc42SFlavio Leitner break; 277706a7fc42SFlavio Leitner } 277806a7fc42SFlavio Leitner } 277906a7fc42SFlavio Leitner 278006a7fc42SFlavio Leitner if (team_linkup) 278106a7fc42SFlavio Leitner netif_carrier_on(team->dev); 278206a7fc42SFlavio Leitner else 278306a7fc42SFlavio Leitner netif_carrier_off(team->dev); 278406a7fc42SFlavio Leitner } 278506a7fc42SFlavio Leitner 278610f3f51dSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 278710f3f51dSJiri Pirko { 278810f3f51dSJiri Pirko if (port->state.linkup != linkup) 278910f3f51dSJiri Pirko __team_port_change_send(port, linkup); 279006a7fc42SFlavio Leitner __team_carrier_check(port->team); 279110f3f51dSJiri Pirko } 279210f3f51dSJiri Pirko 279310f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup) 279410f3f51dSJiri Pirko { 279510f3f51dSJiri Pirko __team_port_change_send(port, linkup); 279606a7fc42SFlavio Leitner __team_carrier_check(port->team); 279710f3f51dSJiri Pirko } 279810f3f51dSJiri Pirko 279910f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port) 280010f3f51dSJiri Pirko { 280110f3f51dSJiri Pirko port->removed = true; 280210f3f51dSJiri Pirko __team_port_change_send(port, false); 280306a7fc42SFlavio Leitner __team_carrier_check(port->team); 280410f3f51dSJiri Pirko } 280510f3f51dSJiri Pirko 28063d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 28073d249d4cSJiri Pirko { 28083d249d4cSJiri Pirko struct team *team = port->team; 28093d249d4cSJiri Pirko 281061dc3461SJiri Pirko mutex_lock(&team->lock); 28113d249d4cSJiri Pirko __team_port_change_check(port, linkup); 281261dc3461SJiri Pirko mutex_unlock(&team->lock); 28133d249d4cSJiri Pirko } 28143d249d4cSJiri Pirko 28150f1aad2bSJiri Pirko 28163d249d4cSJiri Pirko /************************************ 28173d249d4cSJiri Pirko * Net device notifier event handler 28183d249d4cSJiri Pirko ************************************/ 28193d249d4cSJiri Pirko 28203d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 28213d249d4cSJiri Pirko unsigned long event, void *ptr) 28223d249d4cSJiri Pirko { 2823351638e7SJiri Pirko struct net_device *dev = netdev_notifier_info_to_dev(ptr); 28243d249d4cSJiri Pirko struct team_port *port; 28253d249d4cSJiri Pirko 28263d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 28273d249d4cSJiri Pirko if (!port) 28283d249d4cSJiri Pirko return NOTIFY_DONE; 28293d249d4cSJiri Pirko 28303d249d4cSJiri Pirko switch (event) { 28313d249d4cSJiri Pirko case NETDEV_UP: 28323d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 28333d249d4cSJiri Pirko team_port_change_check(port, true); 2834ed2da03cSJiri Pirko break; 28353d249d4cSJiri Pirko case NETDEV_DOWN: 28363d249d4cSJiri Pirko team_port_change_check(port, false); 2837ed2da03cSJiri Pirko break; 28383d249d4cSJiri Pirko case NETDEV_CHANGE: 28393d249d4cSJiri Pirko if (netif_running(port->dev)) 28403d249d4cSJiri Pirko team_port_change_check(port, 28413d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 28423d249d4cSJiri Pirko break; 28433d249d4cSJiri Pirko case NETDEV_UNREGISTER: 28443d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 28453d249d4cSJiri Pirko break; 28463d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 28473d249d4cSJiri Pirko team_compute_features(port->team); 28483d249d4cSJiri Pirko break; 2849b01f236cSVeaceslav Falico case NETDEV_PRECHANGEMTU: 28503d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 28519d0d68faSJiri Pirko if (!port->team->port_mtu_change_allowed) 28523d249d4cSJiri Pirko return NOTIFY_BAD; 28539d0d68faSJiri Pirko break; 28543d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 28553d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 28563d249d4cSJiri Pirko return NOTIFY_BAD; 28574aa5dee4SJiri Pirko case NETDEV_RESEND_IGMP: 28584aa5dee4SJiri Pirko /* Propagate to master device */ 28594aa5dee4SJiri Pirko call_netdevice_notifiers(event, port->team->dev); 28604aa5dee4SJiri Pirko break; 28613d249d4cSJiri Pirko } 28623d249d4cSJiri Pirko return NOTIFY_DONE; 28633d249d4cSJiri Pirko } 28643d249d4cSJiri Pirko 28653d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 28663d249d4cSJiri Pirko .notifier_call = team_device_event, 28673d249d4cSJiri Pirko }; 28683d249d4cSJiri Pirko 28693d249d4cSJiri Pirko 28703d249d4cSJiri Pirko /*********************** 28713d249d4cSJiri Pirko * Module init and exit 28723d249d4cSJiri Pirko ***********************/ 28733d249d4cSJiri Pirko 28743d249d4cSJiri Pirko static int __init team_module_init(void) 28753d249d4cSJiri Pirko { 28763d249d4cSJiri Pirko int err; 28773d249d4cSJiri Pirko 28783d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 28793d249d4cSJiri Pirko 28803d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 28813d249d4cSJiri Pirko if (err) 28823d249d4cSJiri Pirko goto err_rtnl_reg; 28833d249d4cSJiri Pirko 28843d249d4cSJiri Pirko err = team_nl_init(); 28853d249d4cSJiri Pirko if (err) 28863d249d4cSJiri Pirko goto err_nl_init; 28873d249d4cSJiri Pirko 28883d249d4cSJiri Pirko return 0; 28893d249d4cSJiri Pirko 28903d249d4cSJiri Pirko err_nl_init: 28913d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 28923d249d4cSJiri Pirko 28933d249d4cSJiri Pirko err_rtnl_reg: 28943d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 28953d249d4cSJiri Pirko 28963d249d4cSJiri Pirko return err; 28973d249d4cSJiri Pirko } 28983d249d4cSJiri Pirko 28993d249d4cSJiri Pirko static void __exit team_module_exit(void) 29003d249d4cSJiri Pirko { 29013d249d4cSJiri Pirko team_nl_fini(); 29023d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 29033d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 29043d249d4cSJiri Pirko } 29053d249d4cSJiri Pirko 29063d249d4cSJiri Pirko module_init(team_module_init); 29073d249d4cSJiri Pirko module_exit(team_module_exit); 29083d249d4cSJiri Pirko 29093d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 29103d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 29113d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 29123d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2913