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 528122bb046SJiri Pirko static void __team_adjust_ops(struct team *team, int en_port_count) 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 535122bb046SJiri Pirko if (!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 541122bb046SJiri Pirko if (!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 548122bb046SJiri Pirko static void team_adjust_ops(struct team *team) 549122bb046SJiri Pirko { 550122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count); 551122bb046SJiri Pirko } 552122bb046SJiri Pirko 5533d249d4cSJiri Pirko /* 5543d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5553d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5563d249d4cSJiri Pirko * need to set mode operations in any special way. 5573d249d4cSJiri Pirko */ 5583d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5593d249d4cSJiri Pirko const struct team_mode *new_mode) 5603d249d4cSJiri Pirko { 5613d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 562d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5633d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5643d249d4cSJiri Pirko 5653d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5663d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5673d249d4cSJiri Pirko team_adjust_ops(team); 5683d249d4cSJiri Pirko 5693d249d4cSJiri Pirko if (exit_op) 5703d249d4cSJiri Pirko exit_op(team); 5713d249d4cSJiri Pirko team_mode_put(team->mode); 572d299cd51SJiri Pirko team_set_no_mode(team); 5733d249d4cSJiri Pirko /* zero private data area */ 5743d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5753d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5763d249d4cSJiri Pirko } 5773d249d4cSJiri Pirko 5783d249d4cSJiri Pirko if (!new_mode) 5793d249d4cSJiri Pirko return 0; 5803d249d4cSJiri Pirko 5813d249d4cSJiri Pirko if (new_mode->ops->init) { 5823d249d4cSJiri Pirko int err; 5833d249d4cSJiri Pirko 5843d249d4cSJiri Pirko err = new_mode->ops->init(team); 5853d249d4cSJiri Pirko if (err) 5863d249d4cSJiri Pirko return err; 5873d249d4cSJiri Pirko } 5883d249d4cSJiri Pirko 5893d249d4cSJiri Pirko team->mode = new_mode; 5903d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5913d249d4cSJiri Pirko team_adjust_ops(team); 5923d249d4cSJiri Pirko 5933d249d4cSJiri Pirko return 0; 5943d249d4cSJiri Pirko } 5953d249d4cSJiri Pirko 5963d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5973d249d4cSJiri Pirko { 5980402788aSJiri Pirko const struct team_mode *new_mode; 5993d249d4cSJiri Pirko struct net_device *dev = team->dev; 6003d249d4cSJiri Pirko int err; 6013d249d4cSJiri Pirko 6023d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 6033d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 6043d249d4cSJiri Pirko return -EBUSY; 6053d249d4cSJiri Pirko } 6063d249d4cSJiri Pirko 607d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 6083d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 6093d249d4cSJiri Pirko return -EINVAL; 6103d249d4cSJiri Pirko } 6113d249d4cSJiri Pirko 6123d249d4cSJiri Pirko new_mode = team_mode_get(kind); 6133d249d4cSJiri Pirko if (!new_mode) { 6143d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6153d249d4cSJiri Pirko return -EINVAL; 6163d249d4cSJiri Pirko } 6173d249d4cSJiri Pirko 6183d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6193d249d4cSJiri Pirko if (err) { 6203d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6213d249d4cSJiri Pirko team_mode_put(new_mode); 6223d249d4cSJiri Pirko return err; 6233d249d4cSJiri Pirko } 6243d249d4cSJiri Pirko 6253d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6263d249d4cSJiri Pirko return 0; 6273d249d4cSJiri Pirko } 6283d249d4cSJiri Pirko 6293d249d4cSJiri Pirko 6303d249d4cSJiri Pirko /************************ 6313d249d4cSJiri Pirko * Rx path frame handler 6323d249d4cSJiri Pirko ************************/ 6333d249d4cSJiri Pirko 6343d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 6353d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 6363d249d4cSJiri Pirko { 6373d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 6383d249d4cSJiri Pirko struct team_port *port; 6393d249d4cSJiri Pirko struct team *team; 6403d249d4cSJiri Pirko rx_handler_result_t res; 6413d249d4cSJiri Pirko 6423d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 6433d249d4cSJiri Pirko if (!skb) 6443d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 6453d249d4cSJiri Pirko 6463d249d4cSJiri Pirko *pskb = skb; 6473d249d4cSJiri Pirko 6483d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 6493d249d4cSJiri Pirko team = port->team; 65019a0b58eSJiri Pirko if (!team_port_enabled(port)) { 65119a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 65219a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 65319a0b58eSJiri Pirko } else { 6543d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 65519a0b58eSJiri Pirko } 6563d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 6573d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 6583d249d4cSJiri Pirko 6593d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 6603d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 6613d249d4cSJiri Pirko pcpu_stats->rx_packets++; 6623d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 6633d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 6643d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 6653d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 6663d249d4cSJiri Pirko 6673d249d4cSJiri Pirko skb->dev = team->dev; 6683d249d4cSJiri Pirko } else { 6693d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 6703d249d4cSJiri Pirko } 6713d249d4cSJiri Pirko 6723d249d4cSJiri Pirko return res; 6733d249d4cSJiri Pirko } 6743d249d4cSJiri Pirko 6753d249d4cSJiri Pirko 6768ff5105aSJiri Pirko /************************************* 6778ff5105aSJiri Pirko * Multiqueue Tx port select override 6788ff5105aSJiri Pirko *************************************/ 6798ff5105aSJiri Pirko 6808ff5105aSJiri Pirko static int team_queue_override_init(struct team *team) 6818ff5105aSJiri Pirko { 6828ff5105aSJiri Pirko struct list_head *listarr; 6838ff5105aSJiri Pirko unsigned int queue_cnt = team->dev->num_tx_queues - 1; 6848ff5105aSJiri Pirko unsigned int i; 6858ff5105aSJiri Pirko 6868ff5105aSJiri Pirko if (!queue_cnt) 6878ff5105aSJiri Pirko return 0; 6888ff5105aSJiri Pirko listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); 6898ff5105aSJiri Pirko if (!listarr) 6908ff5105aSJiri Pirko return -ENOMEM; 6918ff5105aSJiri Pirko team->qom_lists = listarr; 6928ff5105aSJiri Pirko for (i = 0; i < queue_cnt; i++) 6938ff5105aSJiri Pirko INIT_LIST_HEAD(listarr++); 6948ff5105aSJiri Pirko return 0; 6958ff5105aSJiri Pirko } 6968ff5105aSJiri Pirko 6978ff5105aSJiri Pirko static void team_queue_override_fini(struct team *team) 6988ff5105aSJiri Pirko { 6998ff5105aSJiri Pirko kfree(team->qom_lists); 7008ff5105aSJiri Pirko } 7018ff5105aSJiri Pirko 7028ff5105aSJiri Pirko static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) 7038ff5105aSJiri Pirko { 7048ff5105aSJiri Pirko return &team->qom_lists[queue_id - 1]; 7058ff5105aSJiri Pirko } 7068ff5105aSJiri Pirko 7078ff5105aSJiri Pirko /* 7088ff5105aSJiri Pirko * note: already called with rcu_read_lock 7098ff5105aSJiri Pirko */ 7108ff5105aSJiri Pirko static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) 7118ff5105aSJiri Pirko { 7128ff5105aSJiri Pirko struct list_head *qom_list; 7138ff5105aSJiri Pirko struct team_port *port; 7148ff5105aSJiri Pirko 7158ff5105aSJiri Pirko if (!team->queue_override_enabled || !skb->queue_mapping) 7168ff5105aSJiri Pirko return false; 7178ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, skb->queue_mapping); 7188ff5105aSJiri Pirko list_for_each_entry_rcu(port, qom_list, qom_list) { 7198ff5105aSJiri Pirko if (!team_dev_queue_xmit(team, port, skb)) 7208ff5105aSJiri Pirko return true; 7218ff5105aSJiri Pirko } 7228ff5105aSJiri Pirko return false; 7238ff5105aSJiri Pirko } 7248ff5105aSJiri Pirko 7258ff5105aSJiri Pirko static void __team_queue_override_port_del(struct team *team, 7268ff5105aSJiri Pirko struct team_port *port) 7278ff5105aSJiri Pirko { 7288ff5105aSJiri Pirko list_del_rcu(&port->qom_list); 7298ff5105aSJiri Pirko synchronize_rcu(); 7308ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 7318ff5105aSJiri Pirko } 7328ff5105aSJiri Pirko 7338ff5105aSJiri Pirko static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, 7348ff5105aSJiri Pirko struct team_port *cur) 7358ff5105aSJiri Pirko { 7368ff5105aSJiri Pirko if (port->priority < cur->priority) 7378ff5105aSJiri Pirko return true; 7388ff5105aSJiri Pirko if (port->priority > cur->priority) 7398ff5105aSJiri Pirko return false; 7408ff5105aSJiri Pirko if (port->index < cur->index) 7418ff5105aSJiri Pirko return true; 7428ff5105aSJiri Pirko return false; 7438ff5105aSJiri Pirko } 7448ff5105aSJiri Pirko 7458ff5105aSJiri Pirko static void __team_queue_override_port_add(struct team *team, 7468ff5105aSJiri Pirko struct team_port *port) 7478ff5105aSJiri Pirko { 7488ff5105aSJiri Pirko struct team_port *cur; 7498ff5105aSJiri Pirko struct list_head *qom_list; 7508ff5105aSJiri Pirko struct list_head *node; 7518ff5105aSJiri Pirko 7528ff5105aSJiri Pirko if (!port->queue_id || !team_port_enabled(port)) 7538ff5105aSJiri Pirko return; 7548ff5105aSJiri Pirko 7558ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, port->queue_id); 7568ff5105aSJiri Pirko node = qom_list; 7578ff5105aSJiri Pirko list_for_each_entry(cur, qom_list, qom_list) { 7588ff5105aSJiri Pirko if (team_queue_override_port_has_gt_prio_than(port, cur)) 7598ff5105aSJiri Pirko break; 7608ff5105aSJiri Pirko node = &cur->qom_list; 7618ff5105aSJiri Pirko } 7628ff5105aSJiri Pirko list_add_tail_rcu(&port->qom_list, node); 7638ff5105aSJiri Pirko } 7648ff5105aSJiri Pirko 7658ff5105aSJiri Pirko static void __team_queue_override_enabled_check(struct team *team) 7668ff5105aSJiri Pirko { 7678ff5105aSJiri Pirko struct team_port *port; 7688ff5105aSJiri Pirko bool enabled = false; 7698ff5105aSJiri Pirko 7708ff5105aSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 7718ff5105aSJiri Pirko if (!list_empty(&port->qom_list)) { 7728ff5105aSJiri Pirko enabled = true; 7738ff5105aSJiri Pirko break; 7748ff5105aSJiri Pirko } 7758ff5105aSJiri Pirko } 7768ff5105aSJiri Pirko if (enabled == team->queue_override_enabled) 7778ff5105aSJiri Pirko return; 7788ff5105aSJiri Pirko netdev_dbg(team->dev, "%s queue override\n", 7798ff5105aSJiri Pirko enabled ? "Enabling" : "Disabling"); 7808ff5105aSJiri Pirko team->queue_override_enabled = enabled; 7818ff5105aSJiri Pirko } 7828ff5105aSJiri Pirko 7838ff5105aSJiri Pirko static void team_queue_override_port_refresh(struct team *team, 7848ff5105aSJiri Pirko struct team_port *port) 7858ff5105aSJiri Pirko { 7868ff5105aSJiri Pirko __team_queue_override_port_del(team, port); 7878ff5105aSJiri Pirko __team_queue_override_port_add(team, port); 7888ff5105aSJiri Pirko __team_queue_override_enabled_check(team); 7898ff5105aSJiri Pirko } 7908ff5105aSJiri Pirko 7918ff5105aSJiri Pirko 7923d249d4cSJiri Pirko /**************** 7933d249d4cSJiri Pirko * Port handling 7943d249d4cSJiri Pirko ****************/ 7953d249d4cSJiri Pirko 7963d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 7973d249d4cSJiri Pirko const struct team_port *port) 7983d249d4cSJiri Pirko { 7993d249d4cSJiri Pirko struct team_port *cur; 8003d249d4cSJiri Pirko 8013d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 8023d249d4cSJiri Pirko if (cur == port) 8033d249d4cSJiri Pirko return true; 8043d249d4cSJiri Pirko return false; 8053d249d4cSJiri Pirko } 8063d249d4cSJiri Pirko 8073d249d4cSJiri Pirko /* 80819a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 80919a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 81019a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 81119a0b58eSJiri Pirko * by team->lock. 8123d249d4cSJiri Pirko */ 81319a0b58eSJiri Pirko static void team_port_enable(struct team *team, 8143d249d4cSJiri Pirko struct team_port *port) 8153d249d4cSJiri Pirko { 81619a0b58eSJiri Pirko if (team_port_enabled(port)) 81719a0b58eSJiri Pirko return; 81819a0b58eSJiri Pirko port->index = team->en_port_count++; 8193d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 8203d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 821122bb046SJiri Pirko team_adjust_ops(team); 8228ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 8234bccfd17SJiri Pirko if (team->ops.port_enabled) 8244bccfd17SJiri Pirko team->ops.port_enabled(team, port); 8253d249d4cSJiri Pirko } 8263d249d4cSJiri Pirko 8273d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 8283d249d4cSJiri Pirko { 8293d249d4cSJiri Pirko int i; 8303d249d4cSJiri Pirko struct team_port *port; 8313d249d4cSJiri Pirko 83219a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 8333d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 8343d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 8353d249d4cSJiri Pirko port->index--; 8363d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 8373d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 8383d249d4cSJiri Pirko } 8393d249d4cSJiri Pirko } 8403d249d4cSJiri Pirko 84119a0b58eSJiri Pirko static void team_port_disable(struct team *team, 8423d249d4cSJiri Pirko struct team_port *port) 8433d249d4cSJiri Pirko { 84419a0b58eSJiri Pirko if (!team_port_enabled(port)) 84519a0b58eSJiri Pirko return; 8464bccfd17SJiri Pirko if (team->ops.port_disabled) 8474bccfd17SJiri Pirko team->ops.port_disabled(team, port); 8483d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 849122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 85019a0b58eSJiri Pirko port->index = -1; 8518ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 852122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count - 1); 853122bb046SJiri Pirko /* 854122bb046SJiri Pirko * Wait until readers see adjusted ops. This ensures that 855122bb046SJiri Pirko * readers never see team->en_port_count == 0 856122bb046SJiri Pirko */ 857122bb046SJiri Pirko synchronize_rcu(); 858122bb046SJiri Pirko team->en_port_count--; 8593d249d4cSJiri Pirko } 8603d249d4cSJiri Pirko 8613d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 8623d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 8633d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 8643d249d4cSJiri Pirko 8653d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 8663d249d4cSJiri Pirko { 8673d249d4cSJiri Pirko struct team_port *port; 8683d249d4cSJiri Pirko u32 vlan_features = TEAM_VLAN_FEATURES; 8693d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 870dc905951SJiri Pirko unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; 8713d249d4cSJiri Pirko 8723d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 8733d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 8743d249d4cSJiri Pirko port->dev->vlan_features, 8753d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 8763d249d4cSJiri Pirko 877dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 8783d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 8793d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 8803d249d4cSJiri Pirko } 8813d249d4cSJiri Pirko 8823d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 8833d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 8843d249d4cSJiri Pirko 885dc905951SJiri Pirko flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; 886dc905951SJiri Pirko team->dev->priv_flags = flags | dst_release_flag; 887dc905951SJiri Pirko 8883d249d4cSJiri Pirko netdev_change_features(team->dev); 8893d249d4cSJiri Pirko } 8903d249d4cSJiri Pirko 8913d249d4cSJiri Pirko static void team_compute_features(struct team *team) 8923d249d4cSJiri Pirko { 89361dc3461SJiri Pirko mutex_lock(&team->lock); 8943d249d4cSJiri Pirko __team_compute_features(team); 89561dc3461SJiri Pirko mutex_unlock(&team->lock); 8963d249d4cSJiri Pirko } 8973d249d4cSJiri Pirko 8983d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 8993d249d4cSJiri Pirko { 9003d249d4cSJiri Pirko int err = 0; 9013d249d4cSJiri Pirko 9023d249d4cSJiri Pirko dev_hold(team->dev); 9033d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 9043d249d4cSJiri Pirko if (team->ops.port_enter) { 9053d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 9063d249d4cSJiri Pirko if (err) { 9073d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 9083d249d4cSJiri Pirko port->dev->name); 9093d249d4cSJiri Pirko goto err_port_enter; 9103d249d4cSJiri Pirko } 9113d249d4cSJiri Pirko } 9123d249d4cSJiri Pirko 9133d249d4cSJiri Pirko return 0; 9143d249d4cSJiri Pirko 9153d249d4cSJiri Pirko err_port_enter: 9163d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 9173d249d4cSJiri Pirko dev_put(team->dev); 9183d249d4cSJiri Pirko 9193d249d4cSJiri Pirko return err; 9203d249d4cSJiri Pirko } 9213d249d4cSJiri Pirko 9223d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 9233d249d4cSJiri Pirko { 9243d249d4cSJiri Pirko if (team->ops.port_leave) 9253d249d4cSJiri Pirko team->ops.port_leave(team, port); 9263d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 9273d249d4cSJiri Pirko dev_put(team->dev); 9283d249d4cSJiri Pirko } 9293d249d4cSJiri Pirko 930bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 93147be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 93247be03a2SAmerigo Wang gfp_t gfp) 933bd2d0837SJiri Pirko { 934bd2d0837SJiri Pirko struct netpoll *np; 935bd2d0837SJiri Pirko int err; 936bd2d0837SJiri Pirko 93747be03a2SAmerigo Wang np = kzalloc(sizeof(*np), gfp); 938bd2d0837SJiri Pirko if (!np) 939bd2d0837SJiri Pirko return -ENOMEM; 940bd2d0837SJiri Pirko 94147be03a2SAmerigo Wang err = __netpoll_setup(np, port->dev, gfp); 942bd2d0837SJiri Pirko if (err) { 943bd2d0837SJiri Pirko kfree(np); 944bd2d0837SJiri Pirko return err; 945bd2d0837SJiri Pirko } 946bd2d0837SJiri Pirko port->np = np; 947bd2d0837SJiri Pirko return err; 948bd2d0837SJiri Pirko } 949bd2d0837SJiri Pirko 950bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 951bd2d0837SJiri Pirko { 952bd2d0837SJiri Pirko struct netpoll *np = port->np; 953bd2d0837SJiri Pirko 954bd2d0837SJiri Pirko if (!np) 955bd2d0837SJiri Pirko return; 956bd2d0837SJiri Pirko port->np = NULL; 957bd2d0837SJiri Pirko 958bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 959bd2d0837SJiri Pirko synchronize_rcu_bh(); 960bd2d0837SJiri Pirko __netpoll_cleanup(np); 961bd2d0837SJiri Pirko kfree(np); 962bd2d0837SJiri Pirko } 963bd2d0837SJiri Pirko 964bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 965bd2d0837SJiri Pirko { 966bd2d0837SJiri Pirko return team->dev->npinfo; 967bd2d0837SJiri Pirko } 968bd2d0837SJiri Pirko 969bd2d0837SJiri Pirko #else 97047be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 97147be03a2SAmerigo Wang gfp_t gfp) 972bd2d0837SJiri Pirko { 973bd2d0837SJiri Pirko return 0; 974bd2d0837SJiri Pirko } 975bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 976bd2d0837SJiri Pirko { 977bd2d0837SJiri Pirko } 978bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 979bd2d0837SJiri Pirko { 980bd2d0837SJiri Pirko return NULL; 981bd2d0837SJiri Pirko } 982bd2d0837SJiri Pirko #endif 983bd2d0837SJiri Pirko 98410f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup); 9851d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 9861d76efe1SJiri Pirko struct net_device *port_dev); 9873d249d4cSJiri Pirko 9883d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 9893d249d4cSJiri Pirko { 9903d249d4cSJiri Pirko struct net_device *dev = team->dev; 9913d249d4cSJiri Pirko struct team_port *port; 9923d249d4cSJiri Pirko char *portname = port_dev->name; 9933d249d4cSJiri Pirko int err; 9943d249d4cSJiri Pirko 9951d76efe1SJiri Pirko if (port_dev->flags & IFF_LOOPBACK) { 9961d76efe1SJiri Pirko netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", 9973d249d4cSJiri Pirko portname); 9983d249d4cSJiri Pirko return -EINVAL; 9993d249d4cSJiri Pirko } 10003d249d4cSJiri Pirko 10013d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 10023d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 10033d249d4cSJiri Pirko "of a team device\n", portname); 10043d249d4cSJiri Pirko return -EBUSY; 10053d249d4cSJiri Pirko } 10063d249d4cSJiri Pirko 10072c33bb37SJiri Pirko if (port_dev->features & NETIF_F_VLAN_CHALLENGED && 10082c33bb37SJiri Pirko vlan_uses_dev(dev)) { 10092c33bb37SJiri Pirko netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", 10102c33bb37SJiri Pirko portname); 10112c33bb37SJiri Pirko return -EPERM; 10122c33bb37SJiri Pirko } 10132c33bb37SJiri Pirko 10141d76efe1SJiri Pirko err = team_dev_type_check_change(dev, port_dev); 10151d76efe1SJiri Pirko if (err) 10161d76efe1SJiri Pirko return err; 10171d76efe1SJiri Pirko 10183d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 10193d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 10203d249d4cSJiri Pirko portname); 10213d249d4cSJiri Pirko return -EBUSY; 10223d249d4cSJiri Pirko } 10233d249d4cSJiri Pirko 10245149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 10255149ee58SJiri Pirko GFP_KERNEL); 10263d249d4cSJiri Pirko if (!port) 10273d249d4cSJiri Pirko return -ENOMEM; 10283d249d4cSJiri Pirko 10293d249d4cSJiri Pirko port->dev = port_dev; 10303d249d4cSJiri Pirko port->team = team; 10318ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 10323d249d4cSJiri Pirko 10333d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 10343d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 10353d249d4cSJiri Pirko if (err) { 10363d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 10373d249d4cSJiri Pirko goto err_set_mtu; 10383d249d4cSJiri Pirko } 10393d249d4cSJiri Pirko 10401d76efe1SJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); 10413d249d4cSJiri Pirko 10423d249d4cSJiri Pirko err = team_port_enter(team, port); 10433d249d4cSJiri Pirko if (err) { 10443d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 10453d249d4cSJiri Pirko portname); 10463d249d4cSJiri Pirko goto err_port_enter; 10473d249d4cSJiri Pirko } 10483d249d4cSJiri Pirko 10493d249d4cSJiri Pirko err = dev_open(port_dev); 10503d249d4cSJiri Pirko if (err) { 10513d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 10523d249d4cSJiri Pirko portname); 10533d249d4cSJiri Pirko goto err_dev_open; 10543d249d4cSJiri Pirko } 10553d249d4cSJiri Pirko 105657459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 105757459185SJiri Pirko if (err) { 105857459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 105957459185SJiri Pirko portname); 106057459185SJiri Pirko goto err_vids_add; 106157459185SJiri Pirko } 106257459185SJiri Pirko 1063bd2d0837SJiri Pirko if (team_netpoll_info(team)) { 106447be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, GFP_KERNEL); 1065bd2d0837SJiri Pirko if (err) { 1066bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 1067bd2d0837SJiri Pirko portname); 1068bd2d0837SJiri Pirko goto err_enable_netpoll; 1069bd2d0837SJiri Pirko } 1070bd2d0837SJiri Pirko } 1071bd2d0837SJiri Pirko 1072b1cc9850SJiri Pirko err = netdev_master_upper_dev_link(port_dev, dev); 10733d249d4cSJiri Pirko if (err) { 1074b1cc9850SJiri Pirko netdev_err(dev, "Device %s failed to set upper link\n", 1075b1cc9850SJiri Pirko portname); 1076b1cc9850SJiri Pirko goto err_set_upper_link; 10773d249d4cSJiri Pirko } 10783d249d4cSJiri Pirko 10793d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 10803d249d4cSJiri Pirko port); 10813d249d4cSJiri Pirko if (err) { 10823d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 10833d249d4cSJiri Pirko portname); 10843d249d4cSJiri Pirko goto err_handler_register; 10853d249d4cSJiri Pirko } 10863d249d4cSJiri Pirko 108735b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 108880f7c668SJiri Pirko if (err) { 108980f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 109080f7c668SJiri Pirko portname); 109180f7c668SJiri Pirko goto err_option_port_add; 109280f7c668SJiri Pirko } 109380f7c668SJiri Pirko 109419a0b58eSJiri Pirko port->index = -1; 109519a0b58eSJiri Pirko team_port_enable(team, port); 109619a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 10973d249d4cSJiri Pirko __team_compute_features(team); 109810f3f51dSJiri Pirko __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); 109935b384bdSJiri Pirko __team_options_change_check(team); 11003d249d4cSJiri Pirko 11013d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 11023d249d4cSJiri Pirko 11033d249d4cSJiri Pirko return 0; 11043d249d4cSJiri Pirko 110580f7c668SJiri Pirko err_option_port_add: 110680f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 110780f7c668SJiri Pirko 11083d249d4cSJiri Pirko err_handler_register: 1109b1cc9850SJiri Pirko netdev_upper_dev_unlink(port_dev, dev); 11103d249d4cSJiri Pirko 1111b1cc9850SJiri Pirko err_set_upper_link: 1112bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1113bd2d0837SJiri Pirko 1114bd2d0837SJiri Pirko err_enable_netpoll: 111557459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 111657459185SJiri Pirko 111757459185SJiri Pirko err_vids_add: 11183d249d4cSJiri Pirko dev_close(port_dev); 11193d249d4cSJiri Pirko 11203d249d4cSJiri Pirko err_dev_open: 11213d249d4cSJiri Pirko team_port_leave(team, port); 11221d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 11233d249d4cSJiri Pirko 11243d249d4cSJiri Pirko err_port_enter: 11253d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 11263d249d4cSJiri Pirko 11273d249d4cSJiri Pirko err_set_mtu: 11283d249d4cSJiri Pirko kfree(port); 11293d249d4cSJiri Pirko 11303d249d4cSJiri Pirko return err; 11313d249d4cSJiri Pirko } 11323d249d4cSJiri Pirko 113310f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port); 113410f3f51dSJiri Pirko 11353d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 11363d249d4cSJiri Pirko { 11373d249d4cSJiri Pirko struct net_device *dev = team->dev; 11383d249d4cSJiri Pirko struct team_port *port; 11393d249d4cSJiri Pirko char *portname = port_dev->name; 11403d249d4cSJiri Pirko 11413d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 11423d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 11433d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 11443d249d4cSJiri Pirko portname); 11453d249d4cSJiri Pirko return -ENOENT; 11463d249d4cSJiri Pirko } 11473d249d4cSJiri Pirko 114819a0b58eSJiri Pirko team_port_disable(team, port); 114919a0b58eSJiri Pirko list_del_rcu(&port->list); 11503d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 1151b1cc9850SJiri Pirko netdev_upper_dev_unlink(port_dev, dev); 1152bd2d0837SJiri Pirko team_port_disable_netpoll(port); 115357459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 1154ba81276bSVlad Yasevich dev_uc_unsync(port_dev, dev); 1155ba81276bSVlad Yasevich dev_mc_unsync(port_dev, dev); 11563d249d4cSJiri Pirko dev_close(port_dev); 11573d249d4cSJiri Pirko team_port_leave(team, port); 1158c3969d80SJiri Pirko 1159c3969d80SJiri Pirko __team_option_inst_mark_removed_port(team, port); 1160c3969d80SJiri Pirko __team_options_change_check(team); 1161c3969d80SJiri Pirko __team_option_inst_del_port(team, port); 1162c3969d80SJiri Pirko __team_port_change_port_removed(port); 1163c3969d80SJiri Pirko 11641d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 11653d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 11663d249d4cSJiri Pirko synchronize_rcu(); 11673d249d4cSJiri Pirko kfree(port); 11683d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 11693d249d4cSJiri Pirko __team_compute_features(team); 11703d249d4cSJiri Pirko 11713d249d4cSJiri Pirko return 0; 11723d249d4cSJiri Pirko } 11733d249d4cSJiri Pirko 11743d249d4cSJiri Pirko 11753d249d4cSJiri Pirko /***************** 11763d249d4cSJiri Pirko * Net device ops 11773d249d4cSJiri Pirko *****************/ 11783d249d4cSJiri Pirko 117980f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 11803d249d4cSJiri Pirko { 1181d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 11823d249d4cSJiri Pirko return 0; 11833d249d4cSJiri Pirko } 11843d249d4cSJiri Pirko 118580f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 11863d249d4cSJiri Pirko { 118780f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 11883d249d4cSJiri Pirko } 11893d249d4cSJiri Pirko 1190acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1191acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1192acd69962SJiri Pirko { 119385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 119485d59a87SJiri Pirko 119585d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1196acd69962SJiri Pirko return 0; 1197acd69962SJiri Pirko } 1198acd69962SJiri Pirko 1199acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1200acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1201acd69962SJiri Pirko { 120285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 120385d59a87SJiri Pirko 1204acd69962SJiri Pirko if (ctx->data.bool_val) 120585d59a87SJiri Pirko team_port_enable(team, port); 1206acd69962SJiri Pirko else 120785d59a87SJiri Pirko team_port_disable(team, port); 1208acd69962SJiri Pirko return 0; 1209acd69962SJiri Pirko } 1210acd69962SJiri Pirko 121171472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 121271472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 121371472ec1SJiri Pirko { 121485d59a87SJiri Pirko struct team_port *port = ctx->info->port; 121585d59a87SJiri Pirko 121685d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 121771472ec1SJiri Pirko return 0; 121871472ec1SJiri Pirko } 121971472ec1SJiri Pirko 122071472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 122171472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 122271472ec1SJiri Pirko { 122385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 122485d59a87SJiri Pirko 122585d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 122685d59a87SJiri Pirko team_refresh_port_linkup(port); 122771472ec1SJiri Pirko return 0; 122871472ec1SJiri Pirko } 122971472ec1SJiri Pirko 123071472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 123171472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 123271472ec1SJiri Pirko { 123385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 123471472ec1SJiri Pirko 123571472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 123671472ec1SJiri Pirko return 0; 123771472ec1SJiri Pirko } 123871472ec1SJiri Pirko 123971472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 124071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 124171472ec1SJiri Pirko { 124285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 124371472ec1SJiri Pirko 124471472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 124585d59a87SJiri Pirko team_refresh_port_linkup(port); 124671472ec1SJiri Pirko return 0; 124771472ec1SJiri Pirko } 124871472ec1SJiri Pirko 1249a86fc6b7SJiri Pirko static int team_priority_option_get(struct team *team, 1250a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1251a86fc6b7SJiri Pirko { 1252a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1253a86fc6b7SJiri Pirko 1254a86fc6b7SJiri Pirko ctx->data.s32_val = port->priority; 1255a86fc6b7SJiri Pirko return 0; 1256a86fc6b7SJiri Pirko } 1257a86fc6b7SJiri Pirko 1258a86fc6b7SJiri Pirko static int team_priority_option_set(struct team *team, 1259a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1260a86fc6b7SJiri Pirko { 1261a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1262a86fc6b7SJiri Pirko 1263a86fc6b7SJiri Pirko port->priority = ctx->data.s32_val; 12648ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 1265a86fc6b7SJiri Pirko return 0; 1266a86fc6b7SJiri Pirko } 1267a86fc6b7SJiri Pirko 12688ff5105aSJiri Pirko static int team_queue_id_option_get(struct team *team, 12698ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 12708ff5105aSJiri Pirko { 12718ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 12728ff5105aSJiri Pirko 12738ff5105aSJiri Pirko ctx->data.u32_val = port->queue_id; 12748ff5105aSJiri Pirko return 0; 12758ff5105aSJiri Pirko } 12768ff5105aSJiri Pirko 12778ff5105aSJiri Pirko static int team_queue_id_option_set(struct team *team, 12788ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 12798ff5105aSJiri Pirko { 12808ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 12818ff5105aSJiri Pirko 12828ff5105aSJiri Pirko if (port->queue_id == ctx->data.u32_val) 12838ff5105aSJiri Pirko return 0; 12848ff5105aSJiri Pirko if (ctx->data.u32_val >= team->dev->real_num_tx_queues) 12858ff5105aSJiri Pirko return -EINVAL; 12868ff5105aSJiri Pirko port->queue_id = ctx->data.u32_val; 12878ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 12888ff5105aSJiri Pirko return 0; 12898ff5105aSJiri Pirko } 12908ff5105aSJiri Pirko 12918ff5105aSJiri Pirko 1292358b8382SJiri Pirko static const struct team_option team_options[] = { 12933d249d4cSJiri Pirko { 12943d249d4cSJiri Pirko .name = "mode", 12953d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 12963d249d4cSJiri Pirko .getter = team_mode_option_get, 12973d249d4cSJiri Pirko .setter = team_mode_option_set, 12983d249d4cSJiri Pirko }, 129971472ec1SJiri Pirko { 1300acd69962SJiri Pirko .name = "enabled", 1301acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1302acd69962SJiri Pirko .per_port = true, 1303acd69962SJiri Pirko .getter = team_port_en_option_get, 1304acd69962SJiri Pirko .setter = team_port_en_option_set, 1305acd69962SJiri Pirko }, 1306acd69962SJiri Pirko { 130771472ec1SJiri Pirko .name = "user_linkup", 130871472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 130971472ec1SJiri Pirko .per_port = true, 131071472ec1SJiri Pirko .getter = team_user_linkup_option_get, 131171472ec1SJiri Pirko .setter = team_user_linkup_option_set, 131271472ec1SJiri Pirko }, 131371472ec1SJiri Pirko { 131471472ec1SJiri Pirko .name = "user_linkup_enabled", 131571472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 131671472ec1SJiri Pirko .per_port = true, 131771472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 131871472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 131971472ec1SJiri Pirko }, 1320a86fc6b7SJiri Pirko { 1321a86fc6b7SJiri Pirko .name = "priority", 1322a86fc6b7SJiri Pirko .type = TEAM_OPTION_TYPE_S32, 1323a86fc6b7SJiri Pirko .per_port = true, 1324a86fc6b7SJiri Pirko .getter = team_priority_option_get, 1325a86fc6b7SJiri Pirko .setter = team_priority_option_set, 1326a86fc6b7SJiri Pirko }, 13278ff5105aSJiri Pirko { 13288ff5105aSJiri Pirko .name = "queue_id", 13298ff5105aSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 13308ff5105aSJiri Pirko .per_port = true, 13318ff5105aSJiri Pirko .getter = team_queue_id_option_get, 13328ff5105aSJiri Pirko .setter = team_queue_id_option_set, 13338ff5105aSJiri Pirko }, 13343d249d4cSJiri Pirko }; 13353d249d4cSJiri Pirko 13366c85f2bdSJiri Pirko static struct lock_class_key team_netdev_xmit_lock_key; 13376c85f2bdSJiri Pirko static struct lock_class_key team_netdev_addr_lock_key; 1338b3c581d5SEric Dumazet static struct lock_class_key team_tx_busylock_key; 13396c85f2bdSJiri Pirko 13406c85f2bdSJiri Pirko static void team_set_lockdep_class_one(struct net_device *dev, 13416c85f2bdSJiri Pirko struct netdev_queue *txq, 13426c85f2bdSJiri Pirko void *unused) 13436c85f2bdSJiri Pirko { 13446c85f2bdSJiri Pirko lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); 13456c85f2bdSJiri Pirko } 13466c85f2bdSJiri Pirko 13476c85f2bdSJiri Pirko static void team_set_lockdep_class(struct net_device *dev) 13486c85f2bdSJiri Pirko { 13496c85f2bdSJiri Pirko lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); 13506c85f2bdSJiri Pirko netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); 1351b3c581d5SEric Dumazet dev->qdisc_tx_busylock = &team_tx_busylock_key; 13526c85f2bdSJiri Pirko } 13536c85f2bdSJiri Pirko 13543d249d4cSJiri Pirko static int team_init(struct net_device *dev) 13553d249d4cSJiri Pirko { 13563d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13573d249d4cSJiri Pirko int i; 1358358b8382SJiri Pirko int err; 13593d249d4cSJiri Pirko 13603d249d4cSJiri Pirko team->dev = dev; 136161dc3461SJiri Pirko mutex_init(&team->lock); 1362d299cd51SJiri Pirko team_set_no_mode(team); 13633d249d4cSJiri Pirko 13643d249d4cSJiri Pirko team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); 13653d249d4cSJiri Pirko if (!team->pcpu_stats) 13663d249d4cSJiri Pirko return -ENOMEM; 13673d249d4cSJiri Pirko 13683d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 136919a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 13703d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 13718ff5105aSJiri Pirko err = team_queue_override_init(team); 13728ff5105aSJiri Pirko if (err) 13738ff5105aSJiri Pirko goto err_team_queue_override_init; 13743d249d4cSJiri Pirko 13753d249d4cSJiri Pirko team_adjust_ops(team); 13763d249d4cSJiri Pirko 13773d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 137880f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1379358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1380358b8382SJiri Pirko if (err) 1381358b8382SJiri Pirko goto err_options_register; 13823d249d4cSJiri Pirko netif_carrier_off(dev); 13833d249d4cSJiri Pirko 13846c85f2bdSJiri Pirko team_set_lockdep_class(dev); 13856c85f2bdSJiri Pirko 13863d249d4cSJiri Pirko return 0; 1387358b8382SJiri Pirko 1388358b8382SJiri Pirko err_options_register: 13898ff5105aSJiri Pirko team_queue_override_fini(team); 13908ff5105aSJiri Pirko err_team_queue_override_init: 1391358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1392358b8382SJiri Pirko 1393358b8382SJiri Pirko return err; 13943d249d4cSJiri Pirko } 13953d249d4cSJiri Pirko 13963d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 13973d249d4cSJiri Pirko { 13983d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13993d249d4cSJiri Pirko struct team_port *port; 14003d249d4cSJiri Pirko struct team_port *tmp; 14013d249d4cSJiri Pirko 140261dc3461SJiri Pirko mutex_lock(&team->lock); 14033d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 14043d249d4cSJiri Pirko team_port_del(team, port->dev); 14053d249d4cSJiri Pirko 14063d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 14073d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 14088ff5105aSJiri Pirko team_queue_override_fini(team); 140961dc3461SJiri Pirko mutex_unlock(&team->lock); 14103d249d4cSJiri Pirko } 14113d249d4cSJiri Pirko 14123d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 14133d249d4cSJiri Pirko { 14143d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14153d249d4cSJiri Pirko 14163d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 14173d249d4cSJiri Pirko free_netdev(dev); 14183d249d4cSJiri Pirko } 14193d249d4cSJiri Pirko 14203d249d4cSJiri Pirko static int team_open(struct net_device *dev) 14213d249d4cSJiri Pirko { 14223d249d4cSJiri Pirko return 0; 14233d249d4cSJiri Pirko } 14243d249d4cSJiri Pirko 14253d249d4cSJiri Pirko static int team_close(struct net_device *dev) 14263d249d4cSJiri Pirko { 14273d249d4cSJiri Pirko return 0; 14283d249d4cSJiri Pirko } 14293d249d4cSJiri Pirko 14303d249d4cSJiri Pirko /* 14313d249d4cSJiri Pirko * note: already called with rcu_read_lock 14323d249d4cSJiri Pirko */ 14333d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 14343d249d4cSJiri Pirko { 14353d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14368ff5105aSJiri Pirko bool tx_success; 14373d249d4cSJiri Pirko unsigned int len = skb->len; 14383d249d4cSJiri Pirko 14398ff5105aSJiri Pirko tx_success = team_queue_override_transmit(team, skb); 14408ff5105aSJiri Pirko if (!tx_success) 14413d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 14423d249d4cSJiri Pirko if (tx_success) { 14433d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 14443d249d4cSJiri Pirko 14453d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 14463d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 14473d249d4cSJiri Pirko pcpu_stats->tx_packets++; 14483d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 14493d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 14503d249d4cSJiri Pirko } else { 14513d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 14523d249d4cSJiri Pirko } 14533d249d4cSJiri Pirko 14543d249d4cSJiri Pirko return NETDEV_TX_OK; 14553d249d4cSJiri Pirko } 14563d249d4cSJiri Pirko 14576c85f2bdSJiri Pirko static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) 14586c85f2bdSJiri Pirko { 14596c85f2bdSJiri Pirko /* 14606c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 14616c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 14626c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 14636c85f2bdSJiri Pirko * way down to the team driver. 14646c85f2bdSJiri Pirko */ 14656c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 14666c85f2bdSJiri Pirko 14676c85f2bdSJiri Pirko /* 14686c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 14696c85f2bdSJiri Pirko */ 14706c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 14716c85f2bdSJiri Pirko 14726c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 14736c85f2bdSJiri Pirko do { 14746c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 14756c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 14766c85f2bdSJiri Pirko } 14776c85f2bdSJiri Pirko return txq; 14786c85f2bdSJiri Pirko } 14796c85f2bdSJiri Pirko 14803d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 14813d249d4cSJiri Pirko { 14823d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14833d249d4cSJiri Pirko struct team_port *port; 14843d249d4cSJiri Pirko int inc; 14853d249d4cSJiri Pirko 14863d249d4cSJiri Pirko rcu_read_lock(); 14873d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 14883d249d4cSJiri Pirko if (change & IFF_PROMISC) { 14893d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 14903d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 14913d249d4cSJiri Pirko } 14923d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 14933d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 14943d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 14953d249d4cSJiri Pirko } 14963d249d4cSJiri Pirko } 14973d249d4cSJiri Pirko rcu_read_unlock(); 14983d249d4cSJiri Pirko } 14993d249d4cSJiri Pirko 15003d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 15013d249d4cSJiri Pirko { 15023d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15033d249d4cSJiri Pirko struct team_port *port; 15043d249d4cSJiri Pirko 15053d249d4cSJiri Pirko rcu_read_lock(); 15063d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 150772b27032SVlad Yasevich dev_uc_sync_multiple(port->dev, dev); 150872b27032SVlad Yasevich dev_mc_sync_multiple(port->dev, dev); 15093d249d4cSJiri Pirko } 15103d249d4cSJiri Pirko rcu_read_unlock(); 15113d249d4cSJiri Pirko } 15123d249d4cSJiri Pirko 15133d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 15143d249d4cSJiri Pirko { 15151d76efe1SJiri Pirko struct sockaddr *addr = p; 15163d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15173d249d4cSJiri Pirko struct team_port *port; 15183d249d4cSJiri Pirko 15191d76efe1SJiri Pirko if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) 15201d76efe1SJiri Pirko return -EADDRNOTAVAIL; 15211d76efe1SJiri Pirko memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 15223d249d4cSJiri Pirko rcu_read_lock(); 15233d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 15241d76efe1SJiri Pirko if (team->ops.port_change_dev_addr) 15251d76efe1SJiri Pirko team->ops.port_change_dev_addr(team, port); 15263d249d4cSJiri Pirko rcu_read_unlock(); 15273d249d4cSJiri Pirko return 0; 15283d249d4cSJiri Pirko } 15293d249d4cSJiri Pirko 15303d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 15313d249d4cSJiri Pirko { 15323d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15333d249d4cSJiri Pirko struct team_port *port; 15343d249d4cSJiri Pirko int err; 15353d249d4cSJiri Pirko 15363d249d4cSJiri Pirko /* 15373d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 15383d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 15393d249d4cSJiri Pirko */ 154061dc3461SJiri Pirko mutex_lock(&team->lock); 15413d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 15423d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 15433d249d4cSJiri Pirko if (err) { 15443d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 15453d249d4cSJiri Pirko port->dev->name); 15463d249d4cSJiri Pirko goto unwind; 15473d249d4cSJiri Pirko } 15483d249d4cSJiri Pirko } 154961dc3461SJiri Pirko mutex_unlock(&team->lock); 15503d249d4cSJiri Pirko 15513d249d4cSJiri Pirko dev->mtu = new_mtu; 15523d249d4cSJiri Pirko 15533d249d4cSJiri Pirko return 0; 15543d249d4cSJiri Pirko 15553d249d4cSJiri Pirko unwind: 15563d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 15573d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 155861dc3461SJiri Pirko mutex_unlock(&team->lock); 15593d249d4cSJiri Pirko 15603d249d4cSJiri Pirko return err; 15613d249d4cSJiri Pirko } 15623d249d4cSJiri Pirko 15633d249d4cSJiri Pirko static struct rtnl_link_stats64 * 15643d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 15653d249d4cSJiri Pirko { 15663d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15673d249d4cSJiri Pirko struct team_pcpu_stats *p; 15683d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 15693d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 15703d249d4cSJiri Pirko unsigned int start; 15713d249d4cSJiri Pirko int i; 15723d249d4cSJiri Pirko 15733d249d4cSJiri Pirko for_each_possible_cpu(i) { 15743d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 15753d249d4cSJiri Pirko do { 15763d249d4cSJiri Pirko start = u64_stats_fetch_begin_bh(&p->syncp); 15773d249d4cSJiri Pirko rx_packets = p->rx_packets; 15783d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 15793d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 15803d249d4cSJiri Pirko tx_packets = p->tx_packets; 15813d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 15823d249d4cSJiri Pirko } while (u64_stats_fetch_retry_bh(&p->syncp, start)); 15833d249d4cSJiri Pirko 15843d249d4cSJiri Pirko stats->rx_packets += rx_packets; 15853d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 15863d249d4cSJiri Pirko stats->multicast += rx_multicast; 15873d249d4cSJiri Pirko stats->tx_packets += tx_packets; 15883d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 15893d249d4cSJiri Pirko /* 15903d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 15913d249d4cSJiri Pirko * without syncp protection. 15923d249d4cSJiri Pirko */ 15933d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 15943d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 15953d249d4cSJiri Pirko } 15963d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 15973d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 15983d249d4cSJiri Pirko return stats; 15993d249d4cSJiri Pirko } 16003d249d4cSJiri Pirko 160180d5c368SPatrick McHardy static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) 16023d249d4cSJiri Pirko { 16033d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16043d249d4cSJiri Pirko struct team_port *port; 160587002b03SJiri Pirko int err; 16063d249d4cSJiri Pirko 160787002b03SJiri Pirko /* 160887002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 160987002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 161087002b03SJiri Pirko */ 161187002b03SJiri Pirko mutex_lock(&team->lock); 161287002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 161380d5c368SPatrick McHardy err = vlan_vid_add(port->dev, proto, vid); 161487002b03SJiri Pirko if (err) 161587002b03SJiri Pirko goto unwind; 16163d249d4cSJiri Pirko } 161787002b03SJiri Pirko mutex_unlock(&team->lock); 16188e586137SJiri Pirko 16198e586137SJiri Pirko return 0; 162087002b03SJiri Pirko 162187002b03SJiri Pirko unwind: 162287002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 162380d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 162487002b03SJiri Pirko mutex_unlock(&team->lock); 162587002b03SJiri Pirko 162687002b03SJiri Pirko return err; 16273d249d4cSJiri Pirko } 16283d249d4cSJiri Pirko 162980d5c368SPatrick McHardy static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) 16303d249d4cSJiri Pirko { 16313d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16323d249d4cSJiri Pirko struct team_port *port; 16333d249d4cSJiri Pirko 16343d249d4cSJiri Pirko rcu_read_lock(); 163587002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 163680d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 16373d249d4cSJiri Pirko rcu_read_unlock(); 16388e586137SJiri Pirko 16398e586137SJiri Pirko return 0; 16403d249d4cSJiri Pirko } 16413d249d4cSJiri Pirko 1642bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1643bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1644bd2d0837SJiri Pirko { 1645bd2d0837SJiri Pirko } 1646bd2d0837SJiri Pirko 1647bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1648bd2d0837SJiri Pirko { 1649bd2d0837SJiri Pirko struct team_port *port; 1650bd2d0837SJiri Pirko 1651bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1652bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1653bd2d0837SJiri Pirko } 1654bd2d0837SJiri Pirko 1655bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1656bd2d0837SJiri Pirko { 1657bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1658bd2d0837SJiri Pirko 1659bd2d0837SJiri Pirko mutex_lock(&team->lock); 1660bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1661bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1662bd2d0837SJiri Pirko } 1663bd2d0837SJiri Pirko 1664bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 166547be03a2SAmerigo Wang struct netpoll_info *npifo, gfp_t gfp) 1666bd2d0837SJiri Pirko { 1667bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1668bd2d0837SJiri Pirko struct team_port *port; 16693324d024SJiri Pirko int err = 0; 1670bd2d0837SJiri Pirko 1671bd2d0837SJiri Pirko mutex_lock(&team->lock); 1672bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 167347be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, gfp); 1674bd2d0837SJiri Pirko if (err) { 1675bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1676bd2d0837SJiri Pirko break; 1677bd2d0837SJiri Pirko } 1678bd2d0837SJiri Pirko } 1679bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1680bd2d0837SJiri Pirko return err; 1681bd2d0837SJiri Pirko } 1682bd2d0837SJiri Pirko #endif 1683bd2d0837SJiri Pirko 16843d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 16853d249d4cSJiri Pirko { 16863d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16873d249d4cSJiri Pirko int err; 16883d249d4cSJiri Pirko 168961dc3461SJiri Pirko mutex_lock(&team->lock); 16903d249d4cSJiri Pirko err = team_port_add(team, port_dev); 169161dc3461SJiri Pirko mutex_unlock(&team->lock); 16923d249d4cSJiri Pirko return err; 16933d249d4cSJiri Pirko } 16943d249d4cSJiri Pirko 16953d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 16963d249d4cSJiri Pirko { 16973d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16983d249d4cSJiri Pirko int err; 16993d249d4cSJiri Pirko 170061dc3461SJiri Pirko mutex_lock(&team->lock); 17013d249d4cSJiri Pirko err = team_port_del(team, port_dev); 170261dc3461SJiri Pirko mutex_unlock(&team->lock); 17033d249d4cSJiri Pirko return err; 17043d249d4cSJiri Pirko } 17053d249d4cSJiri Pirko 1706234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1707234a8fd4SJiri Pirko netdev_features_t features) 1708234a8fd4SJiri Pirko { 1709234a8fd4SJiri Pirko struct team_port *port; 1710234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1711234a8fd4SJiri Pirko netdev_features_t mask; 1712234a8fd4SJiri Pirko 1713234a8fd4SJiri Pirko mask = features; 1714234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1715234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1716234a8fd4SJiri Pirko 1717234a8fd4SJiri Pirko rcu_read_lock(); 1718234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1719234a8fd4SJiri Pirko features = netdev_increment_features(features, 1720234a8fd4SJiri Pirko port->dev->features, 1721234a8fd4SJiri Pirko mask); 1722234a8fd4SJiri Pirko } 1723234a8fd4SJiri Pirko rcu_read_unlock(); 1724234a8fd4SJiri Pirko return features; 1725234a8fd4SJiri Pirko } 1726234a8fd4SJiri Pirko 17274cafe373SFlavio Leitner static int team_change_carrier(struct net_device *dev, bool new_carrier) 17284cafe373SFlavio Leitner { 1729e185483eSFlavio Leitner struct team *team = netdev_priv(dev); 1730e185483eSFlavio Leitner 1731e185483eSFlavio Leitner team->user_carrier_enabled = true; 1732e185483eSFlavio Leitner 17334cafe373SFlavio Leitner if (new_carrier) 17344cafe373SFlavio Leitner netif_carrier_on(dev); 17354cafe373SFlavio Leitner else 17364cafe373SFlavio Leitner netif_carrier_off(dev); 17374cafe373SFlavio Leitner return 0; 17384cafe373SFlavio Leitner } 17394cafe373SFlavio Leitner 17403d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 17413d249d4cSJiri Pirko .ndo_init = team_init, 17423d249d4cSJiri Pirko .ndo_uninit = team_uninit, 17433d249d4cSJiri Pirko .ndo_open = team_open, 17443d249d4cSJiri Pirko .ndo_stop = team_close, 17453d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 17466c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 17473d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 17483d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 17493d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 17503d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 17513d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 17523d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 17533d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 1754bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1755bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 1756bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 1757bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 1758bd2d0837SJiri Pirko #endif 17593d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 17603d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1761234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 17624cafe373SFlavio Leitner .ndo_change_carrier = team_change_carrier, 17633d249d4cSJiri Pirko }; 17643d249d4cSJiri Pirko 17657f51c587SFlavio Leitner /*********************** 17667f51c587SFlavio Leitner * ethtool interface 17677f51c587SFlavio Leitner ***********************/ 17687f51c587SFlavio Leitner 17697f51c587SFlavio Leitner static void team_ethtool_get_drvinfo(struct net_device *dev, 17707f51c587SFlavio Leitner struct ethtool_drvinfo *drvinfo) 17717f51c587SFlavio Leitner { 17723066af58SFlavio Leitner strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 17733066af58SFlavio Leitner strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); 17747f51c587SFlavio Leitner } 17757f51c587SFlavio Leitner 17767f51c587SFlavio Leitner static const struct ethtool_ops team_ethtool_ops = { 17777f51c587SFlavio Leitner .get_drvinfo = team_ethtool_get_drvinfo, 17787f51c587SFlavio Leitner .get_link = ethtool_op_get_link, 17797f51c587SFlavio Leitner }; 17803d249d4cSJiri Pirko 17813d249d4cSJiri Pirko /*********************** 17823d249d4cSJiri Pirko * rt netlink interface 17833d249d4cSJiri Pirko ***********************/ 17843d249d4cSJiri Pirko 17851d76efe1SJiri Pirko static void team_setup_by_port(struct net_device *dev, 17861d76efe1SJiri Pirko struct net_device *port_dev) 17871d76efe1SJiri Pirko { 17881d76efe1SJiri Pirko dev->header_ops = port_dev->header_ops; 17891d76efe1SJiri Pirko dev->type = port_dev->type; 17901d76efe1SJiri Pirko dev->hard_header_len = port_dev->hard_header_len; 17911d76efe1SJiri Pirko dev->addr_len = port_dev->addr_len; 17921d76efe1SJiri Pirko dev->mtu = port_dev->mtu; 17931d76efe1SJiri Pirko memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); 17941d76efe1SJiri Pirko memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); 17951d76efe1SJiri Pirko } 17961d76efe1SJiri Pirko 17971d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 17981d76efe1SJiri Pirko struct net_device *port_dev) 17991d76efe1SJiri Pirko { 18001d76efe1SJiri Pirko struct team *team = netdev_priv(dev); 18011d76efe1SJiri Pirko char *portname = port_dev->name; 18021d76efe1SJiri Pirko int err; 18031d76efe1SJiri Pirko 18041d76efe1SJiri Pirko if (dev->type == port_dev->type) 18051d76efe1SJiri Pirko return 0; 18061d76efe1SJiri Pirko if (!list_empty(&team->port_list)) { 18071d76efe1SJiri Pirko netdev_err(dev, "Device %s is of different type\n", portname); 18081d76efe1SJiri Pirko return -EBUSY; 18091d76efe1SJiri Pirko } 18101d76efe1SJiri Pirko err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); 18111d76efe1SJiri Pirko err = notifier_to_errno(err); 18121d76efe1SJiri Pirko if (err) { 18131d76efe1SJiri Pirko netdev_err(dev, "Refused to change device type\n"); 18141d76efe1SJiri Pirko return err; 18151d76efe1SJiri Pirko } 18161d76efe1SJiri Pirko dev_uc_flush(dev); 18171d76efe1SJiri Pirko dev_mc_flush(dev); 18181d76efe1SJiri Pirko team_setup_by_port(dev, port_dev); 18191d76efe1SJiri Pirko call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); 18201d76efe1SJiri Pirko return 0; 18211d76efe1SJiri Pirko } 18221d76efe1SJiri Pirko 18233d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 18243d249d4cSJiri Pirko { 18253d249d4cSJiri Pirko ether_setup(dev); 18263d249d4cSJiri Pirko 18273d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 18287f51c587SFlavio Leitner dev->ethtool_ops = &team_ethtool_ops; 18293d249d4cSJiri Pirko dev->destructor = team_destructor; 18303d249d4cSJiri Pirko dev->tx_queue_len = 0; 18313d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 18323d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 18333d249d4cSJiri Pirko 18343d249d4cSJiri Pirko /* 18353d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 18363d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 18373d249d4cSJiri Pirko * Let this up to underlay drivers. 18383d249d4cSJiri Pirko */ 18395a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 18403d249d4cSJiri Pirko 18413d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 18423d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 18433ed71471SJiri Pirko dev->hw_features = TEAM_VLAN_FEATURES | 1844f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_TX | 1845f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_RX | 1846f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_FILTER; 18473d249d4cSJiri Pirko 18483ed71471SJiri Pirko dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); 18493d249d4cSJiri Pirko dev->features |= dev->hw_features; 18503d249d4cSJiri Pirko } 18513d249d4cSJiri Pirko 18523d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 18533d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 18543d249d4cSJiri Pirko { 18553d249d4cSJiri Pirko int err; 18563d249d4cSJiri Pirko 18573d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 18587ce5d222SDanny Kukawka eth_hw_addr_random(dev); 18593d249d4cSJiri Pirko 18603d249d4cSJiri Pirko err = register_netdevice(dev); 18613d249d4cSJiri Pirko if (err) 18623d249d4cSJiri Pirko return err; 18633d249d4cSJiri Pirko 18643d249d4cSJiri Pirko return 0; 18653d249d4cSJiri Pirko } 18663d249d4cSJiri Pirko 18673d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 18683d249d4cSJiri Pirko { 18693d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 18703d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 18713d249d4cSJiri Pirko return -EINVAL; 18723d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 18733d249d4cSJiri Pirko return -EADDRNOTAVAIL; 18743d249d4cSJiri Pirko } 18753d249d4cSJiri Pirko return 0; 18763d249d4cSJiri Pirko } 18773d249d4cSJiri Pirko 18786c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 18796c85f2bdSJiri Pirko { 18806c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 18816c85f2bdSJiri Pirko } 18826c85f2bdSJiri Pirko 18836c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 18846c85f2bdSJiri Pirko { 18856c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 18866c85f2bdSJiri Pirko } 18876c85f2bdSJiri Pirko 18883d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 18893d249d4cSJiri Pirko .kind = DRV_NAME, 18903d249d4cSJiri Pirko .priv_size = sizeof(struct team), 18913d249d4cSJiri Pirko .setup = team_setup, 18923d249d4cSJiri Pirko .newlink = team_newlink, 18933d249d4cSJiri Pirko .validate = team_validate, 18946c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 18956c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 18963d249d4cSJiri Pirko }; 18973d249d4cSJiri Pirko 18983d249d4cSJiri Pirko 18993d249d4cSJiri Pirko /*********************************** 19003d249d4cSJiri Pirko * Generic netlink custom interface 19013d249d4cSJiri Pirko ***********************************/ 19023d249d4cSJiri Pirko 19033d249d4cSJiri Pirko static struct genl_family team_nl_family = { 19043d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 19053d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 19063d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 19073d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 19083d249d4cSJiri Pirko .netnsok = true, 19093d249d4cSJiri Pirko }; 19103d249d4cSJiri Pirko 19113d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 19123d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 19133d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 19143d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 19153d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 19163d249d4cSJiri Pirko }; 19173d249d4cSJiri Pirko 19183d249d4cSJiri Pirko static const struct nla_policy 19193d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 19203d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 19213d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 19223d249d4cSJiri Pirko .type = NLA_STRING, 19233d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 19243d249d4cSJiri Pirko }, 19253d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 19263d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 19272615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 19283d249d4cSJiri Pirko }; 19293d249d4cSJiri Pirko 19303d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 19313d249d4cSJiri Pirko { 19323d249d4cSJiri Pirko struct sk_buff *msg; 19333d249d4cSJiri Pirko void *hdr; 19343d249d4cSJiri Pirko int err; 19353d249d4cSJiri Pirko 193658050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 19373d249d4cSJiri Pirko if (!msg) 19383d249d4cSJiri Pirko return -ENOMEM; 19393d249d4cSJiri Pirko 194015e47304SEric W. Biederman hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, 19413d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 1942a326e6ddSWei Yongjun if (!hdr) { 1943a326e6ddSWei Yongjun err = -EMSGSIZE; 19443d249d4cSJiri Pirko goto err_msg_put; 19453d249d4cSJiri Pirko } 19463d249d4cSJiri Pirko 19473d249d4cSJiri Pirko genlmsg_end(msg, hdr); 19483d249d4cSJiri Pirko 194915e47304SEric W. Biederman return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); 19503d249d4cSJiri Pirko 19513d249d4cSJiri Pirko err_msg_put: 19523d249d4cSJiri Pirko nlmsg_free(msg); 19533d249d4cSJiri Pirko 19543d249d4cSJiri Pirko return err; 19553d249d4cSJiri Pirko } 19563d249d4cSJiri Pirko 19573d249d4cSJiri Pirko /* 19583d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 19598c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 19603d249d4cSJiri Pirko */ 19613d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 19623d249d4cSJiri Pirko { 19633d249d4cSJiri Pirko struct net *net = genl_info_net(info); 19643d249d4cSJiri Pirko int ifindex; 19653d249d4cSJiri Pirko struct net_device *dev; 19663d249d4cSJiri Pirko struct team *team; 19673d249d4cSJiri Pirko 19683d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 19693d249d4cSJiri Pirko return NULL; 19703d249d4cSJiri Pirko 19713d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 19728c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 19733d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 19748c0713a5SJiri Pirko if (dev) 19758c0713a5SJiri Pirko dev_put(dev); 19763d249d4cSJiri Pirko return NULL; 19773d249d4cSJiri Pirko } 19783d249d4cSJiri Pirko 19793d249d4cSJiri Pirko team = netdev_priv(dev); 198061dc3461SJiri Pirko mutex_lock(&team->lock); 19813d249d4cSJiri Pirko return team; 19823d249d4cSJiri Pirko } 19833d249d4cSJiri Pirko 19843d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 19853d249d4cSJiri Pirko { 198661dc3461SJiri Pirko mutex_unlock(&team->lock); 19878c0713a5SJiri Pirko dev_put(team->dev); 19883d249d4cSJiri Pirko } 19893d249d4cSJiri Pirko 19909b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 199115e47304SEric W. Biederman struct team *team, u32 portid); 19929b00cf2dSJiri Pirko 199315e47304SEric W. Biederman static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) 19949b00cf2dSJiri Pirko { 199515e47304SEric W. Biederman return genlmsg_unicast(dev_net(team->dev), skb, portid); 19969b00cf2dSJiri Pirko } 19979b00cf2dSJiri Pirko 199801048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 199901048d9aSJiri Pirko struct team_option_inst *opt_inst) 20003d249d4cSJiri Pirko { 20013d249d4cSJiri Pirko struct nlattr *option_item; 200280f7c668SJiri Pirko struct team_option *option = opt_inst->option; 20039b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 200480f7c668SJiri Pirko struct team_gsetter_ctx ctx; 200501048d9aSJiri Pirko int err; 20063d249d4cSJiri Pirko 20079b00cf2dSJiri Pirko ctx.info = opt_inst_info; 20089b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 20099b00cf2dSJiri Pirko if (err) 20109b00cf2dSJiri Pirko return err; 20119b00cf2dSJiri Pirko 20123d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 20133d249d4cSJiri Pirko if (!option_item) 20149b00cf2dSJiri Pirko return -EMSGSIZE; 201585d59a87SJiri Pirko 20169b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 20179b00cf2dSJiri Pirko goto nest_cancel; 201885d59a87SJiri Pirko if (opt_inst_info->port && 201980f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 202085d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 20219b00cf2dSJiri Pirko goto nest_cancel; 2022b1303326SJiri Pirko if (opt_inst->option->array_size && 2023b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 202485d59a87SJiri Pirko opt_inst_info->array_index)) 20259b00cf2dSJiri Pirko goto nest_cancel; 202685d59a87SJiri Pirko 20273d249d4cSJiri Pirko switch (option->type) { 20283d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 202986ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 20309b00cf2dSJiri Pirko goto nest_cancel; 203101048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 20329b00cf2dSJiri Pirko goto nest_cancel; 20333d249d4cSJiri Pirko break; 20343d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 203586ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 20369b00cf2dSJiri Pirko goto nest_cancel; 203786ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 203880f7c668SJiri Pirko ctx.data.str_val)) 20399b00cf2dSJiri Pirko goto nest_cancel; 20403d249d4cSJiri Pirko break; 20412615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 20422615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 20439b00cf2dSJiri Pirko goto nest_cancel; 204401048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 204501048d9aSJiri Pirko ctx.data.bin_val.ptr)) 20469b00cf2dSJiri Pirko goto nest_cancel; 20472615598fSJiri Pirko break; 204814f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 204914f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 20509b00cf2dSJiri Pirko goto nest_cancel; 205114f066baSJiri Pirko if (ctx.data.bool_val && 205214f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 20539b00cf2dSJiri Pirko goto nest_cancel; 205414f066baSJiri Pirko break; 205569821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 205669821638SJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) 205769821638SJiri Pirko goto nest_cancel; 205869821638SJiri Pirko if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) 205969821638SJiri Pirko goto nest_cancel; 206069821638SJiri Pirko break; 20613d249d4cSJiri Pirko default: 20623d249d4cSJiri Pirko BUG(); 20633d249d4cSJiri Pirko } 20649b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 20659b00cf2dSJiri Pirko goto nest_cancel; 20669b00cf2dSJiri Pirko if (opt_inst->changed) { 20679b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 20689b00cf2dSJiri Pirko goto nest_cancel; 20699b00cf2dSJiri Pirko opt_inst->changed = false; 20709b00cf2dSJiri Pirko } 20713d249d4cSJiri Pirko nla_nest_end(skb, option_item); 207201048d9aSJiri Pirko return 0; 207301048d9aSJiri Pirko 20749b00cf2dSJiri Pirko nest_cancel: 20759b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 20769b00cf2dSJiri Pirko return -EMSGSIZE; 207701048d9aSJiri Pirko } 207801048d9aSJiri Pirko 20799b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 208015e47304SEric W. Biederman struct team *team, u32 portid, 20819b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 20829b00cf2dSJiri Pirko { 20839b00cf2dSJiri Pirko int err; 20849b00cf2dSJiri Pirko 20859b00cf2dSJiri Pirko if (*pskb) { 208615e47304SEric W. Biederman err = send_func(*pskb, team, portid); 20879b00cf2dSJiri Pirko if (err) 20889b00cf2dSJiri Pirko return err; 20899b00cf2dSJiri Pirko } 209058050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 20919b00cf2dSJiri Pirko if (!*pskb) 20929b00cf2dSJiri Pirko return -ENOMEM; 20939b00cf2dSJiri Pirko return 0; 20949b00cf2dSJiri Pirko } 20959b00cf2dSJiri Pirko 209615e47304SEric W. Biederman static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, 20979b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 209801048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 209901048d9aSJiri Pirko { 210001048d9aSJiri Pirko struct nlattr *option_list; 21019b00cf2dSJiri Pirko struct nlmsghdr *nlh; 210201048d9aSJiri Pirko void *hdr; 210301048d9aSJiri Pirko struct team_option_inst *opt_inst; 210401048d9aSJiri Pirko int err; 21059b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 21069b00cf2dSJiri Pirko bool incomplete; 21079b00cf2dSJiri Pirko int i; 210801048d9aSJiri Pirko 21099b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 21109b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 21119b00cf2dSJiri Pirko 21129b00cf2dSJiri Pirko start_again: 211315e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 21149b00cf2dSJiri Pirko if (err) 21159b00cf2dSJiri Pirko return err; 21169b00cf2dSJiri Pirko 211715e47304SEric W. Biederman hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 211801048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 2119a326e6ddSWei Yongjun if (!hdr) 2120a326e6ddSWei Yongjun return -EMSGSIZE; 212101048d9aSJiri Pirko 212201048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 212301048d9aSJiri Pirko goto nla_put_failure; 212401048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 212501048d9aSJiri Pirko if (!option_list) 212601048d9aSJiri Pirko goto nla_put_failure; 212701048d9aSJiri Pirko 21289b00cf2dSJiri Pirko i = 0; 21299b00cf2dSJiri Pirko incomplete = false; 21309b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 213101048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 21329b00cf2dSJiri Pirko if (err) { 21339b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 21349b00cf2dSJiri Pirko if (!i) 213501048d9aSJiri Pirko goto errout; 21369b00cf2dSJiri Pirko incomplete = true; 21379b00cf2dSJiri Pirko break; 21389b00cf2dSJiri Pirko } 21399b00cf2dSJiri Pirko goto errout; 21409b00cf2dSJiri Pirko } 21419b00cf2dSJiri Pirko i++; 21423d249d4cSJiri Pirko } 21433d249d4cSJiri Pirko 21443d249d4cSJiri Pirko nla_nest_end(skb, option_list); 21459b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 21469b00cf2dSJiri Pirko if (incomplete) 21479b00cf2dSJiri Pirko goto start_again; 21489b00cf2dSJiri Pirko 21499b00cf2dSJiri Pirko send_done: 215015e47304SEric W. Biederman nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 21519b00cf2dSJiri Pirko if (!nlh) { 215215e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 21539b00cf2dSJiri Pirko if (err) 21549b00cf2dSJiri Pirko goto errout; 21559b00cf2dSJiri Pirko goto send_done; 21569b00cf2dSJiri Pirko } 21579b00cf2dSJiri Pirko 215815e47304SEric W. Biederman return send_func(skb, team, portid); 21593d249d4cSJiri Pirko 21603d249d4cSJiri Pirko nla_put_failure: 216180f7c668SJiri Pirko err = -EMSGSIZE; 216280f7c668SJiri Pirko errout: 21633d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 21649b00cf2dSJiri Pirko nlmsg_free(skb); 216580f7c668SJiri Pirko return err; 21663d249d4cSJiri Pirko } 21673d249d4cSJiri Pirko 21683d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 21693d249d4cSJiri Pirko { 21703d249d4cSJiri Pirko struct team *team; 21719b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 21723d249d4cSJiri Pirko int err; 21739b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 21743d249d4cSJiri Pirko 21753d249d4cSJiri Pirko team = team_nl_team_get(info); 21763d249d4cSJiri Pirko if (!team) 21773d249d4cSJiri Pirko return -EINVAL; 21783d249d4cSJiri Pirko 21799b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 21809b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 218115e47304SEric W. Biederman err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, 21829b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 21839b00cf2dSJiri Pirko &sel_opt_inst_list); 21843d249d4cSJiri Pirko 21853d249d4cSJiri Pirko team_nl_team_put(team); 21863d249d4cSJiri Pirko 21873d249d4cSJiri Pirko return err; 21883d249d4cSJiri Pirko } 21893d249d4cSJiri Pirko 21902fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 21912fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 21922fcdb2c9SJiri Pirko 21933d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 21943d249d4cSJiri Pirko { 21953d249d4cSJiri Pirko struct team *team; 21963d249d4cSJiri Pirko int err = 0; 21973d249d4cSJiri Pirko int i; 21983d249d4cSJiri Pirko struct nlattr *nl_option; 21992fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 22003d249d4cSJiri Pirko 22013d249d4cSJiri Pirko team = team_nl_team_get(info); 22023d249d4cSJiri Pirko if (!team) 22033d249d4cSJiri Pirko return -EINVAL; 22043d249d4cSJiri Pirko 22053d249d4cSJiri Pirko err = -EINVAL; 22063d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 22073d249d4cSJiri Pirko err = -EINVAL; 22083d249d4cSJiri Pirko goto team_put; 22093d249d4cSJiri Pirko } 22103d249d4cSJiri Pirko 22113d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 221280f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 2213b1303326SJiri Pirko struct nlattr *attr; 221414f066baSJiri Pirko struct nlattr *attr_data; 22153d249d4cSJiri Pirko enum team_option_type opt_type; 221680f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 2217b1303326SJiri Pirko u32 opt_array_index = 0; 2218b1303326SJiri Pirko bool opt_is_array = false; 221980f7c668SJiri Pirko struct team_option_inst *opt_inst; 22203d249d4cSJiri Pirko char *opt_name; 22213d249d4cSJiri Pirko bool opt_found = false; 22223d249d4cSJiri Pirko 22233d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 22243d249d4cSJiri Pirko err = -EINVAL; 22253d249d4cSJiri Pirko goto team_put; 22263d249d4cSJiri Pirko } 222780f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 22283d249d4cSJiri Pirko nl_option, team_nl_option_policy); 22293d249d4cSJiri Pirko if (err) 22303d249d4cSJiri Pirko goto team_put; 223180f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 223214f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 22333d249d4cSJiri Pirko err = -EINVAL; 22343d249d4cSJiri Pirko goto team_put; 22353d249d4cSJiri Pirko } 223680f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 22373d249d4cSJiri Pirko case NLA_U32: 22383d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 22393d249d4cSJiri Pirko break; 22403d249d4cSJiri Pirko case NLA_STRING: 22413d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 22423d249d4cSJiri Pirko break; 22432615598fSJiri Pirko case NLA_BINARY: 22442615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 22452615598fSJiri Pirko break; 224614f066baSJiri Pirko case NLA_FLAG: 224714f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 224814f066baSJiri Pirko break; 224969821638SJiri Pirko case NLA_S32: 225069821638SJiri Pirko opt_type = TEAM_OPTION_TYPE_S32; 225169821638SJiri Pirko break; 22523d249d4cSJiri Pirko default: 22533d249d4cSJiri Pirko goto team_put; 22543d249d4cSJiri Pirko } 22553d249d4cSJiri Pirko 225614f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 225714f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 225814f066baSJiri Pirko err = -EINVAL; 225914f066baSJiri Pirko goto team_put; 226014f066baSJiri Pirko } 226114f066baSJiri Pirko 226280f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 2263b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 2264b1303326SJiri Pirko if (attr) 2265b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 2266b1303326SJiri Pirko 2267b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 2268b1303326SJiri Pirko if (attr) { 2269b1303326SJiri Pirko opt_is_array = true; 2270b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 2271b1303326SJiri Pirko } 22723d249d4cSJiri Pirko 227380f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 227480f7c668SJiri Pirko struct team_option *option = opt_inst->option; 227580f7c668SJiri Pirko struct team_gsetter_ctx ctx; 227685d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 227780f7c668SJiri Pirko int tmp_ifindex; 227880f7c668SJiri Pirko 227985d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 228085d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 228185d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 22823d249d4cSJiri Pirko if (option->type != opt_type || 228380f7c668SJiri Pirko strcmp(option->name, opt_name) || 2284b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2285b1303326SJiri Pirko (option->array_size && !opt_is_array) || 228685d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 22873d249d4cSJiri Pirko continue; 22883d249d4cSJiri Pirko opt_found = true; 228985d59a87SJiri Pirko ctx.info = opt_inst_info; 22903d249d4cSJiri Pirko switch (opt_type) { 22913d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 229214f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 22933d249d4cSJiri Pirko break; 22943d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 229514f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 22962615598fSJiri Pirko err = -EINVAL; 22972615598fSJiri Pirko goto team_put; 22982615598fSJiri Pirko } 229914f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 23003d249d4cSJiri Pirko break; 23012615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 230214f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 230314f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 230414f066baSJiri Pirko break; 230514f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 230614f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 23072615598fSJiri Pirko break; 230869821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 230969821638SJiri Pirko ctx.data.s32_val = nla_get_s32(attr_data); 231069821638SJiri Pirko break; 23113d249d4cSJiri Pirko default: 23123d249d4cSJiri Pirko BUG(); 23133d249d4cSJiri Pirko } 231480f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 23153d249d4cSJiri Pirko if (err) 23163d249d4cSJiri Pirko goto team_put; 23172fcdb2c9SJiri Pirko opt_inst->changed = true; 23182fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 23193d249d4cSJiri Pirko } 23203d249d4cSJiri Pirko if (!opt_found) { 23213d249d4cSJiri Pirko err = -ENOENT; 23223d249d4cSJiri Pirko goto team_put; 23233d249d4cSJiri Pirko } 23243d249d4cSJiri Pirko } 23253d249d4cSJiri Pirko 23262fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 23272fcdb2c9SJiri Pirko 23283d249d4cSJiri Pirko team_put: 23293d249d4cSJiri Pirko team_nl_team_put(team); 23303d249d4cSJiri Pirko 23313d249d4cSJiri Pirko return err; 23323d249d4cSJiri Pirko } 23333d249d4cSJiri Pirko 2334d90f889eSJiri Pirko static int team_nl_fill_one_port_get(struct sk_buff *skb, 2335d90f889eSJiri Pirko struct team_port *port) 2336d90f889eSJiri Pirko { 2337d90f889eSJiri Pirko struct nlattr *port_item; 2338d90f889eSJiri Pirko 2339d90f889eSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 2340d90f889eSJiri Pirko if (!port_item) 2341d90f889eSJiri Pirko goto nest_cancel; 2342d90f889eSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 2343d90f889eSJiri Pirko goto nest_cancel; 2344d90f889eSJiri Pirko if (port->changed) { 2345d90f889eSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 2346d90f889eSJiri Pirko goto nest_cancel; 2347d90f889eSJiri Pirko port->changed = false; 2348d90f889eSJiri Pirko } 2349d90f889eSJiri Pirko if ((port->removed && 2350d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 2351d90f889eSJiri Pirko (port->state.linkup && 2352d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 2353d90f889eSJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 2354d90f889eSJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 2355d90f889eSJiri Pirko goto nest_cancel; 2356d90f889eSJiri Pirko nla_nest_end(skb, port_item); 2357d90f889eSJiri Pirko return 0; 2358d90f889eSJiri Pirko 2359d90f889eSJiri Pirko nest_cancel: 2360d90f889eSJiri Pirko nla_nest_cancel(skb, port_item); 2361d90f889eSJiri Pirko return -EMSGSIZE; 2362d90f889eSJiri Pirko } 2363d90f889eSJiri Pirko 2364d90f889eSJiri Pirko static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, 2365d90f889eSJiri Pirko int flags, team_nl_send_func_t *send_func, 2366d90f889eSJiri Pirko struct team_port *one_port) 23673d249d4cSJiri Pirko { 23683d249d4cSJiri Pirko struct nlattr *port_list; 2369d90f889eSJiri Pirko struct nlmsghdr *nlh; 23703d249d4cSJiri Pirko void *hdr; 23713d249d4cSJiri Pirko struct team_port *port; 2372d90f889eSJiri Pirko int err; 2373d90f889eSJiri Pirko struct sk_buff *skb = NULL; 2374d90f889eSJiri Pirko bool incomplete; 2375d90f889eSJiri Pirko int i; 23763d249d4cSJiri Pirko 2377d90f889eSJiri Pirko port = list_first_entry(&team->port_list, struct team_port, list); 2378d90f889eSJiri Pirko 2379d90f889eSJiri Pirko start_again: 2380d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2381d90f889eSJiri Pirko if (err) 2382d90f889eSJiri Pirko return err; 2383d90f889eSJiri Pirko 2384d90f889eSJiri Pirko hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 23853d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 2386a326e6ddSWei Yongjun if (!hdr) 2387a326e6ddSWei Yongjun return -EMSGSIZE; 23883d249d4cSJiri Pirko 238986ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 239086ebb02dSDavid S. Miller goto nla_put_failure; 23913d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 23923d249d4cSJiri Pirko if (!port_list) 23933221c646SJiri Pirko goto nla_put_failure; 23943d249d4cSJiri Pirko 2395d90f889eSJiri Pirko i = 0; 2396d90f889eSJiri Pirko incomplete = false; 23973d249d4cSJiri Pirko 2398d90f889eSJiri Pirko /* If one port is selected, called wants to send port list containing 2399d90f889eSJiri Pirko * only this port. Otherwise go through all listed ports and send all 2400d90f889eSJiri Pirko */ 2401d90f889eSJiri Pirko if (one_port) { 2402d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, one_port); 2403d90f889eSJiri Pirko if (err) 2404d90f889eSJiri Pirko goto errout; 2405d90f889eSJiri Pirko } else { 2406d90f889eSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 2407d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, port); 2408d90f889eSJiri Pirko if (err) { 2409d90f889eSJiri Pirko if (err == -EMSGSIZE) { 2410d90f889eSJiri Pirko if (!i) 2411d90f889eSJiri Pirko goto errout; 2412d90f889eSJiri Pirko incomplete = true; 2413d90f889eSJiri Pirko break; 2414b82b9183SJiri Pirko } 2415d90f889eSJiri Pirko goto errout; 2416d90f889eSJiri Pirko } 2417d90f889eSJiri Pirko i++; 2418d90f889eSJiri Pirko } 24193d249d4cSJiri Pirko } 24203d249d4cSJiri Pirko 24213d249d4cSJiri Pirko nla_nest_end(skb, port_list); 2422d90f889eSJiri Pirko genlmsg_end(skb, hdr); 2423d90f889eSJiri Pirko if (incomplete) 2424d90f889eSJiri Pirko goto start_again; 24253d249d4cSJiri Pirko 2426d90f889eSJiri Pirko send_done: 2427d90f889eSJiri Pirko nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 2428d90f889eSJiri Pirko if (!nlh) { 2429d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2430d90f889eSJiri Pirko if (err) 2431d90f889eSJiri Pirko goto errout; 2432d90f889eSJiri Pirko goto send_done; 24333d249d4cSJiri Pirko } 24343d249d4cSJiri Pirko 2435d90f889eSJiri Pirko return send_func(skb, team, portid); 2436d90f889eSJiri Pirko 2437d90f889eSJiri Pirko nla_put_failure: 2438d90f889eSJiri Pirko err = -EMSGSIZE; 2439d90f889eSJiri Pirko errout: 2440d90f889eSJiri Pirko genlmsg_cancel(skb, hdr); 2441d90f889eSJiri Pirko nlmsg_free(skb); 2442d90f889eSJiri Pirko return err; 24433d249d4cSJiri Pirko } 24443d249d4cSJiri Pirko 24453d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 24463d249d4cSJiri Pirko struct genl_info *info) 24473d249d4cSJiri Pirko { 24483d249d4cSJiri Pirko struct team *team; 24493d249d4cSJiri Pirko int err; 24503d249d4cSJiri Pirko 24513d249d4cSJiri Pirko team = team_nl_team_get(info); 24523d249d4cSJiri Pirko if (!team) 24533d249d4cSJiri Pirko return -EINVAL; 24543d249d4cSJiri Pirko 2455d90f889eSJiri Pirko err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, 2456d90f889eSJiri Pirko NLM_F_ACK, team_nl_send_unicast, NULL); 24573d249d4cSJiri Pirko 24583d249d4cSJiri Pirko team_nl_team_put(team); 24593d249d4cSJiri Pirko 24603d249d4cSJiri Pirko return err; 24613d249d4cSJiri Pirko } 24623d249d4cSJiri Pirko 24633d249d4cSJiri Pirko static struct genl_ops team_nl_ops[] = { 24643d249d4cSJiri Pirko { 24653d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 24663d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 24673d249d4cSJiri Pirko .policy = team_nl_policy, 24683d249d4cSJiri Pirko }, 24693d249d4cSJiri Pirko { 24703d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 24713d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 24723d249d4cSJiri Pirko .policy = team_nl_policy, 24733d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 24743d249d4cSJiri Pirko }, 24753d249d4cSJiri Pirko { 24763d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 24773d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 24783d249d4cSJiri Pirko .policy = team_nl_policy, 24793d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 24803d249d4cSJiri Pirko }, 24813d249d4cSJiri Pirko { 24823d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 24833d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 24843d249d4cSJiri Pirko .policy = team_nl_policy, 24853d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 24863d249d4cSJiri Pirko }, 24873d249d4cSJiri Pirko }; 24883d249d4cSJiri Pirko 24893d249d4cSJiri Pirko static struct genl_multicast_group team_change_event_mcgrp = { 24903d249d4cSJiri Pirko .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, 24913d249d4cSJiri Pirko }; 24923d249d4cSJiri Pirko 24939b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 249415e47304SEric W. Biederman struct team *team, u32 portid) 24959b00cf2dSJiri Pirko { 24969b00cf2dSJiri Pirko return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, 24979b00cf2dSJiri Pirko team_change_event_mcgrp.id, GFP_KERNEL); 24989b00cf2dSJiri Pirko } 24999b00cf2dSJiri Pirko 250001048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 250101048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 25023d249d4cSJiri Pirko { 25039b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 25049b00cf2dSJiri Pirko sel_opt_inst_list); 25053d249d4cSJiri Pirko } 25063d249d4cSJiri Pirko 2507d90f889eSJiri Pirko static int team_nl_send_event_port_get(struct team *team, 2508d90f889eSJiri Pirko struct team_port *port) 25093d249d4cSJiri Pirko { 2510d90f889eSJiri Pirko return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, 2511d90f889eSJiri Pirko port); 25123d249d4cSJiri Pirko } 25133d249d4cSJiri Pirko 25143d249d4cSJiri Pirko static int team_nl_init(void) 25153d249d4cSJiri Pirko { 25163d249d4cSJiri Pirko int err; 25173d249d4cSJiri Pirko 25183d249d4cSJiri Pirko err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, 25193d249d4cSJiri Pirko ARRAY_SIZE(team_nl_ops)); 25203d249d4cSJiri Pirko if (err) 25213d249d4cSJiri Pirko return err; 25223d249d4cSJiri Pirko 25233d249d4cSJiri Pirko err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); 25243d249d4cSJiri Pirko if (err) 25253d249d4cSJiri Pirko goto err_change_event_grp_reg; 25263d249d4cSJiri Pirko 25273d249d4cSJiri Pirko return 0; 25283d249d4cSJiri Pirko 25293d249d4cSJiri Pirko err_change_event_grp_reg: 25303d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 25313d249d4cSJiri Pirko 25323d249d4cSJiri Pirko return err; 25333d249d4cSJiri Pirko } 25343d249d4cSJiri Pirko 25353d249d4cSJiri Pirko static void team_nl_fini(void) 25363d249d4cSJiri Pirko { 25373d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 25383d249d4cSJiri Pirko } 25393d249d4cSJiri Pirko 25403d249d4cSJiri Pirko 25413d249d4cSJiri Pirko /****************** 25423d249d4cSJiri Pirko * Change checkers 25433d249d4cSJiri Pirko ******************/ 25443d249d4cSJiri Pirko 2545b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 25463d249d4cSJiri Pirko { 25473d249d4cSJiri Pirko int err; 254801048d9aSJiri Pirko struct team_option_inst *opt_inst; 254901048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 25503d249d4cSJiri Pirko 255101048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 255201048d9aSJiri Pirko if (opt_inst->changed) 255301048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 255401048d9aSJiri Pirko } 255501048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 25560c7517e9SJiri Pirko if (err && err != -ESRCH) 25579b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 25589b00cf2dSJiri Pirko err); 25593d249d4cSJiri Pirko } 25603d249d4cSJiri Pirko 25613d249d4cSJiri Pirko /* rtnl lock is held */ 256210f3f51dSJiri Pirko 256310f3f51dSJiri Pirko static void __team_port_change_send(struct team_port *port, bool linkup) 25643d249d4cSJiri Pirko { 25653d249d4cSJiri Pirko int err; 25663d249d4cSJiri Pirko 2567b82b9183SJiri Pirko port->changed = true; 256871472ec1SJiri Pirko port->state.linkup = linkup; 256971472ec1SJiri Pirko team_refresh_port_linkup(port); 25703d249d4cSJiri Pirko if (linkup) { 25713d249d4cSJiri Pirko struct ethtool_cmd ecmd; 25723d249d4cSJiri Pirko 25733d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 25743d249d4cSJiri Pirko if (!err) { 257571472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 257671472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 25773d249d4cSJiri Pirko goto send_event; 25783d249d4cSJiri Pirko } 25793d249d4cSJiri Pirko } 258071472ec1SJiri Pirko port->state.speed = 0; 258171472ec1SJiri Pirko port->state.duplex = 0; 25823d249d4cSJiri Pirko 25833d249d4cSJiri Pirko send_event: 2584d90f889eSJiri Pirko err = team_nl_send_event_port_get(port->team, port); 25850c7517e9SJiri Pirko if (err && err != -ESRCH) 25860c7517e9SJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", 25870c7517e9SJiri Pirko port->dev->name, err); 25883d249d4cSJiri Pirko 25893d249d4cSJiri Pirko } 25903d249d4cSJiri Pirko 259106a7fc42SFlavio Leitner static void __team_carrier_check(struct team *team) 259206a7fc42SFlavio Leitner { 259306a7fc42SFlavio Leitner struct team_port *port; 259406a7fc42SFlavio Leitner bool team_linkup; 259506a7fc42SFlavio Leitner 2596e185483eSFlavio Leitner if (team->user_carrier_enabled) 2597e185483eSFlavio Leitner return; 2598e185483eSFlavio Leitner 259906a7fc42SFlavio Leitner team_linkup = false; 260006a7fc42SFlavio Leitner list_for_each_entry(port, &team->port_list, list) { 260106a7fc42SFlavio Leitner if (port->linkup) { 260206a7fc42SFlavio Leitner team_linkup = true; 260306a7fc42SFlavio Leitner break; 260406a7fc42SFlavio Leitner } 260506a7fc42SFlavio Leitner } 260606a7fc42SFlavio Leitner 260706a7fc42SFlavio Leitner if (team_linkup) 260806a7fc42SFlavio Leitner netif_carrier_on(team->dev); 260906a7fc42SFlavio Leitner else 261006a7fc42SFlavio Leitner netif_carrier_off(team->dev); 261106a7fc42SFlavio Leitner } 261206a7fc42SFlavio Leitner 261310f3f51dSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 261410f3f51dSJiri Pirko { 261510f3f51dSJiri Pirko if (port->state.linkup != linkup) 261610f3f51dSJiri Pirko __team_port_change_send(port, linkup); 261706a7fc42SFlavio Leitner __team_carrier_check(port->team); 261810f3f51dSJiri Pirko } 261910f3f51dSJiri Pirko 262010f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup) 262110f3f51dSJiri Pirko { 262210f3f51dSJiri Pirko __team_port_change_send(port, linkup); 262306a7fc42SFlavio Leitner __team_carrier_check(port->team); 262410f3f51dSJiri Pirko } 262510f3f51dSJiri Pirko 262610f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port) 262710f3f51dSJiri Pirko { 262810f3f51dSJiri Pirko port->removed = true; 262910f3f51dSJiri Pirko __team_port_change_send(port, false); 263006a7fc42SFlavio Leitner __team_carrier_check(port->team); 263110f3f51dSJiri Pirko } 263210f3f51dSJiri Pirko 26333d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 26343d249d4cSJiri Pirko { 26353d249d4cSJiri Pirko struct team *team = port->team; 26363d249d4cSJiri Pirko 263761dc3461SJiri Pirko mutex_lock(&team->lock); 26383d249d4cSJiri Pirko __team_port_change_check(port, linkup); 263961dc3461SJiri Pirko mutex_unlock(&team->lock); 26403d249d4cSJiri Pirko } 26413d249d4cSJiri Pirko 26420f1aad2bSJiri Pirko 26433d249d4cSJiri Pirko /************************************ 26443d249d4cSJiri Pirko * Net device notifier event handler 26453d249d4cSJiri Pirko ************************************/ 26463d249d4cSJiri Pirko 26473d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 26483d249d4cSJiri Pirko unsigned long event, void *ptr) 26493d249d4cSJiri Pirko { 2650351638e7SJiri Pirko struct net_device *dev = netdev_notifier_info_to_dev(ptr); 26513d249d4cSJiri Pirko struct team_port *port; 26523d249d4cSJiri Pirko 26533d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 26543d249d4cSJiri Pirko if (!port) 26553d249d4cSJiri Pirko return NOTIFY_DONE; 26563d249d4cSJiri Pirko 26573d249d4cSJiri Pirko switch (event) { 26583d249d4cSJiri Pirko case NETDEV_UP: 26593d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 26603d249d4cSJiri Pirko team_port_change_check(port, true); 26613d249d4cSJiri Pirko case NETDEV_DOWN: 26623d249d4cSJiri Pirko team_port_change_check(port, false); 26633d249d4cSJiri Pirko case NETDEV_CHANGE: 26643d249d4cSJiri Pirko if (netif_running(port->dev)) 26653d249d4cSJiri Pirko team_port_change_check(port, 26663d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 26673d249d4cSJiri Pirko break; 26683d249d4cSJiri Pirko case NETDEV_UNREGISTER: 26693d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 26703d249d4cSJiri Pirko break; 26713d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 26723d249d4cSJiri Pirko team_compute_features(port->team); 26733d249d4cSJiri Pirko break; 26743d249d4cSJiri Pirko case NETDEV_CHANGEMTU: 26753d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 26763d249d4cSJiri Pirko return NOTIFY_BAD; 26773d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 26783d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 26793d249d4cSJiri Pirko return NOTIFY_BAD; 26803d249d4cSJiri Pirko } 26813d249d4cSJiri Pirko return NOTIFY_DONE; 26823d249d4cSJiri Pirko } 26833d249d4cSJiri Pirko 26843d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 26853d249d4cSJiri Pirko .notifier_call = team_device_event, 26863d249d4cSJiri Pirko }; 26873d249d4cSJiri Pirko 26883d249d4cSJiri Pirko 26893d249d4cSJiri Pirko /*********************** 26903d249d4cSJiri Pirko * Module init and exit 26913d249d4cSJiri Pirko ***********************/ 26923d249d4cSJiri Pirko 26933d249d4cSJiri Pirko static int __init team_module_init(void) 26943d249d4cSJiri Pirko { 26953d249d4cSJiri Pirko int err; 26963d249d4cSJiri Pirko 26973d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 26983d249d4cSJiri Pirko 26993d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 27003d249d4cSJiri Pirko if (err) 27013d249d4cSJiri Pirko goto err_rtnl_reg; 27023d249d4cSJiri Pirko 27033d249d4cSJiri Pirko err = team_nl_init(); 27043d249d4cSJiri Pirko if (err) 27053d249d4cSJiri Pirko goto err_nl_init; 27063d249d4cSJiri Pirko 27073d249d4cSJiri Pirko return 0; 27083d249d4cSJiri Pirko 27093d249d4cSJiri Pirko err_nl_init: 27103d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 27113d249d4cSJiri Pirko 27123d249d4cSJiri Pirko err_rtnl_reg: 27133d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 27143d249d4cSJiri Pirko 27153d249d4cSJiri Pirko return err; 27163d249d4cSJiri Pirko } 27173d249d4cSJiri Pirko 27183d249d4cSJiri Pirko static void __exit team_module_exit(void) 27193d249d4cSJiri Pirko { 27203d249d4cSJiri Pirko team_nl_fini(); 27213d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 27223d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 27233d249d4cSJiri Pirko } 27243d249d4cSJiri Pirko 27253d249d4cSJiri Pirko module_init(team_module_init); 27263d249d4cSJiri Pirko module_exit(team_module_exit); 27273d249d4cSJiri Pirko 27283d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 27293d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 27303d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 27313d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2732