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> 31a16a8ee7SRoopa Prabhu #include <net/switchdev.h> 327f51c587SFlavio Leitner #include <generated/utsrelease.h> 333d249d4cSJiri Pirko #include <linux/if_team.h> 343d249d4cSJiri Pirko 353d249d4cSJiri Pirko #define DRV_NAME "team" 363d249d4cSJiri Pirko 373d249d4cSJiri Pirko 383d249d4cSJiri Pirko /********** 393d249d4cSJiri Pirko * Helpers 403d249d4cSJiri Pirko **********/ 413d249d4cSJiri Pirko 423d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 433d249d4cSJiri Pirko 443d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 453d249d4cSJiri Pirko { 4657e59563SJiri Pirko return rcu_dereference(dev->rx_handler_data); 473d249d4cSJiri Pirko } 483d249d4cSJiri Pirko 493d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 503d249d4cSJiri Pirko { 513d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 523d249d4cSJiri Pirko 533d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 543d249d4cSJiri Pirko } 553d249d4cSJiri Pirko 563d249d4cSJiri Pirko /* 571d76efe1SJiri Pirko * Since the ability to change device address for open port device is tested in 583d249d4cSJiri Pirko * team_port_add, this function can be called without control of return value 593d249d4cSJiri Pirko */ 601d76efe1SJiri Pirko static int __set_port_dev_addr(struct net_device *port_dev, 613d249d4cSJiri Pirko const unsigned char *dev_addr) 623d249d4cSJiri Pirko { 63996f6e12SWANG Cong struct sockaddr_storage addr; 643d249d4cSJiri Pirko 65996f6e12SWANG Cong memcpy(addr.__data, dev_addr, port_dev->addr_len); 66996f6e12SWANG Cong addr.ss_family = port_dev->type; 67996f6e12SWANG Cong return dev_set_mac_address(port_dev, (struct sockaddr *)&addr); 683d249d4cSJiri Pirko } 693d249d4cSJiri Pirko 701d76efe1SJiri Pirko static int team_port_set_orig_dev_addr(struct team_port *port) 713d249d4cSJiri Pirko { 721d76efe1SJiri Pirko return __set_port_dev_addr(port->dev, port->orig.dev_addr); 733d249d4cSJiri Pirko } 743d249d4cSJiri Pirko 75acbba0d0SJiri Pirko static int team_port_set_team_dev_addr(struct team *team, 76acbba0d0SJiri Pirko struct team_port *port) 773d249d4cSJiri Pirko { 78acbba0d0SJiri Pirko return __set_port_dev_addr(port->dev, team->dev->dev_addr); 793d249d4cSJiri Pirko } 80acbba0d0SJiri Pirko 81acbba0d0SJiri Pirko int team_modeop_port_enter(struct team *team, struct team_port *port) 82acbba0d0SJiri Pirko { 83acbba0d0SJiri Pirko return team_port_set_team_dev_addr(team, port); 84acbba0d0SJiri Pirko } 85acbba0d0SJiri Pirko EXPORT_SYMBOL(team_modeop_port_enter); 86acbba0d0SJiri Pirko 87acbba0d0SJiri Pirko void team_modeop_port_change_dev_addr(struct team *team, 88acbba0d0SJiri Pirko struct team_port *port) 89acbba0d0SJiri Pirko { 90acbba0d0SJiri Pirko team_port_set_team_dev_addr(team, port); 91acbba0d0SJiri Pirko } 92acbba0d0SJiri Pirko EXPORT_SYMBOL(team_modeop_port_change_dev_addr); 933d249d4cSJiri Pirko 943a0d6c5aSJiri Pirko static void team_lower_state_changed(struct team_port *port) 953a0d6c5aSJiri Pirko { 963a0d6c5aSJiri Pirko struct netdev_lag_lower_state_info info; 973a0d6c5aSJiri Pirko 983a0d6c5aSJiri Pirko info.link_up = port->linkup; 993a0d6c5aSJiri Pirko info.tx_enabled = team_port_enabled(port); 1003a0d6c5aSJiri Pirko netdev_lower_state_changed(port->dev, &info); 1013a0d6c5aSJiri Pirko } 1023a0d6c5aSJiri Pirko 10371472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 10471472ec1SJiri Pirko { 1053a0d6c5aSJiri Pirko bool new_linkup = port->user.linkup_enabled ? port->user.linkup : 10671472ec1SJiri Pirko port->state.linkup; 1073a0d6c5aSJiri Pirko 1083a0d6c5aSJiri Pirko if (port->linkup != new_linkup) { 1093a0d6c5aSJiri Pirko port->linkup = new_linkup; 1103a0d6c5aSJiri Pirko team_lower_state_changed(port); 1113a0d6c5aSJiri Pirko } 11271472ec1SJiri Pirko } 1133d249d4cSJiri Pirko 1140f1aad2bSJiri Pirko 1153d249d4cSJiri Pirko /******************* 1163d249d4cSJiri Pirko * Options handling 1173d249d4cSJiri Pirko *******************/ 1183d249d4cSJiri Pirko 11980f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 12080f7c668SJiri Pirko struct list_head list; 12101048d9aSJiri Pirko struct list_head tmp_list; 12280f7c668SJiri Pirko struct team_option *option; 12385d59a87SJiri Pirko struct team_option_inst_info info; 12480f7c668SJiri Pirko bool changed; 12580f7c668SJiri Pirko bool removed; 12680f7c668SJiri Pirko }; 12780f7c668SJiri Pirko 12880f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 12980f7c668SJiri Pirko const char *opt_name) 130358b8382SJiri Pirko { 131358b8382SJiri Pirko struct team_option *option; 132358b8382SJiri Pirko 133358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 134358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 135358b8382SJiri Pirko return option; 136358b8382SJiri Pirko } 137358b8382SJiri Pirko return NULL; 138358b8382SJiri Pirko } 139358b8382SJiri Pirko 14080f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 14180f7c668SJiri Pirko { 14280f7c668SJiri Pirko list_del(&opt_inst->list); 14380f7c668SJiri Pirko kfree(opt_inst); 14480f7c668SJiri Pirko } 14580f7c668SJiri Pirko 14680f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 14780f7c668SJiri Pirko struct team_option *option) 14880f7c668SJiri Pirko { 14980f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 15080f7c668SJiri Pirko 15180f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 15280f7c668SJiri Pirko if (opt_inst->option == option) 15380f7c668SJiri Pirko __team_option_inst_del(opt_inst); 15480f7c668SJiri Pirko } 15580f7c668SJiri Pirko } 15680f7c668SJiri Pirko 157b1303326SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 158b1303326SJiri Pirko struct team_port *port) 159b1303326SJiri Pirko { 160b1303326SJiri Pirko struct team_option_inst *opt_inst; 161b1303326SJiri Pirko unsigned int array_size; 162b1303326SJiri Pirko unsigned int i; 16385d59a87SJiri Pirko int err; 164b1303326SJiri Pirko 165b1303326SJiri Pirko array_size = option->array_size; 166b1303326SJiri Pirko if (!array_size) 167b1303326SJiri Pirko array_size = 1; /* No array but still need one instance */ 168b1303326SJiri Pirko 169b1303326SJiri Pirko for (i = 0; i < array_size; i++) { 170b1303326SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 171b1303326SJiri Pirko if (!opt_inst) 172b1303326SJiri Pirko return -ENOMEM; 173b1303326SJiri Pirko opt_inst->option = option; 17485d59a87SJiri Pirko opt_inst->info.port = port; 17585d59a87SJiri Pirko opt_inst->info.array_index = i; 176b1303326SJiri Pirko opt_inst->changed = true; 177b1303326SJiri Pirko opt_inst->removed = false; 178b1303326SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 17985d59a87SJiri Pirko if (option->init) { 18085d59a87SJiri Pirko err = option->init(team, &opt_inst->info); 18185d59a87SJiri Pirko if (err) 18285d59a87SJiri Pirko return err; 18385d59a87SJiri Pirko } 18485d59a87SJiri Pirko 185b1303326SJiri Pirko } 186b1303326SJiri Pirko return 0; 187b1303326SJiri Pirko } 188b1303326SJiri Pirko 18980f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 19080f7c668SJiri Pirko struct team_option *option) 19180f7c668SJiri Pirko { 19280f7c668SJiri Pirko int err; 19380f7c668SJiri Pirko 194b1303326SJiri Pirko if (!option->per_port) { 195f88725ffSJiri Pirko err = __team_option_inst_add(team, option, NULL); 196b1303326SJiri Pirko if (err) 197b1303326SJiri Pirko goto inst_del_option; 198b1303326SJiri Pirko } 19980f7c668SJiri Pirko return 0; 20080f7c668SJiri Pirko 20180f7c668SJiri Pirko inst_del_option: 20280f7c668SJiri Pirko __team_option_inst_del_option(team, option); 20380f7c668SJiri Pirko return err; 20480f7c668SJiri Pirko } 20580f7c668SJiri Pirko 20680f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 20780f7c668SJiri Pirko struct team_option *option) 20880f7c668SJiri Pirko { 20980f7c668SJiri Pirko struct team_option_inst *opt_inst; 21080f7c668SJiri Pirko 21180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 21280f7c668SJiri Pirko if (opt_inst->option == option) { 21380f7c668SJiri Pirko opt_inst->changed = true; 21480f7c668SJiri Pirko opt_inst->removed = true; 21580f7c668SJiri Pirko } 21680f7c668SJiri Pirko } 21780f7c668SJiri Pirko } 21880f7c668SJiri Pirko 21980f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 22080f7c668SJiri Pirko struct team_port *port) 22180f7c668SJiri Pirko { 22280f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 22380f7c668SJiri Pirko 22480f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 22580f7c668SJiri Pirko if (opt_inst->option->per_port && 22685d59a87SJiri Pirko opt_inst->info.port == port) 22780f7c668SJiri Pirko __team_option_inst_del(opt_inst); 22880f7c668SJiri Pirko } 22980f7c668SJiri Pirko } 23080f7c668SJiri Pirko 23180f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 23280f7c668SJiri Pirko struct team_port *port) 23380f7c668SJiri Pirko { 23480f7c668SJiri Pirko struct team_option *option; 23580f7c668SJiri Pirko int err; 23680f7c668SJiri Pirko 23780f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 23880f7c668SJiri Pirko if (!option->per_port) 23980f7c668SJiri Pirko continue; 24080f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 24180f7c668SJiri Pirko if (err) 24280f7c668SJiri Pirko goto inst_del_port; 24380f7c668SJiri Pirko } 24480f7c668SJiri Pirko return 0; 24580f7c668SJiri Pirko 24680f7c668SJiri Pirko inst_del_port: 24780f7c668SJiri Pirko __team_option_inst_del_port(team, port); 24880f7c668SJiri Pirko return err; 24980f7c668SJiri Pirko } 25080f7c668SJiri Pirko 25180f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 25280f7c668SJiri Pirko struct team_port *port) 25380f7c668SJiri Pirko { 25480f7c668SJiri Pirko struct team_option_inst *opt_inst; 25580f7c668SJiri Pirko 25680f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 25785d59a87SJiri Pirko if (opt_inst->info.port == port) { 25880f7c668SJiri Pirko opt_inst->changed = true; 25980f7c668SJiri Pirko opt_inst->removed = true; 26080f7c668SJiri Pirko } 26180f7c668SJiri Pirko } 26280f7c668SJiri Pirko } 26380f7c668SJiri Pirko 26480f7c668SJiri Pirko static int __team_options_register(struct team *team, 265358b8382SJiri Pirko const struct team_option *option, 2663d249d4cSJiri Pirko size_t option_count) 2673d249d4cSJiri Pirko { 2683d249d4cSJiri Pirko int i; 2692bba19ffSJiri Pirko struct team_option **dst_opts; 270358b8382SJiri Pirko int err; 2713d249d4cSJiri Pirko 2722bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2732bba19ffSJiri Pirko GFP_KERNEL); 2742bba19ffSJiri Pirko if (!dst_opts) 2752bba19ffSJiri Pirko return -ENOMEM; 276358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 277358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 278358b8382SJiri Pirko err = -EEXIST; 27980f7c668SJiri Pirko goto alloc_rollback; 2803d249d4cSJiri Pirko } 281f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 282f8a15af0SJiri Pirko if (!dst_opts[i]) { 283358b8382SJiri Pirko err = -ENOMEM; 28480f7c668SJiri Pirko goto alloc_rollback; 285358b8382SJiri Pirko } 286358b8382SJiri Pirko } 287358b8382SJiri Pirko 288b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 28980f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 29080f7c668SJiri Pirko if (err) 29180f7c668SJiri Pirko goto inst_rollback; 292358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 293b82b9183SJiri Pirko } 294358b8382SJiri Pirko 2952bba19ffSJiri Pirko kfree(dst_opts); 296358b8382SJiri Pirko return 0; 297358b8382SJiri Pirko 29880f7c668SJiri Pirko inst_rollback: 29980f7c668SJiri Pirko for (i--; i >= 0; i--) 30080f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 30180f7c668SJiri Pirko 30280f7c668SJiri Pirko i = option_count - 1; 30380f7c668SJiri Pirko alloc_rollback: 30480f7c668SJiri Pirko for (i--; i >= 0; i--) 305358b8382SJiri Pirko kfree(dst_opts[i]); 306358b8382SJiri Pirko 3072bba19ffSJiri Pirko kfree(dst_opts); 308358b8382SJiri Pirko return err; 309358b8382SJiri Pirko } 310358b8382SJiri Pirko 311b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 312b82b9183SJiri Pirko const struct team_option *option, 313b82b9183SJiri Pirko size_t option_count) 314b82b9183SJiri Pirko { 315b82b9183SJiri Pirko int i; 3163d249d4cSJiri Pirko 317b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 318b82b9183SJiri Pirko struct team_option *del_opt; 319b82b9183SJiri Pirko 320b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 32180f7c668SJiri Pirko if (del_opt) 32280f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 323b82b9183SJiri Pirko } 324b82b9183SJiri Pirko } 3253d249d4cSJiri Pirko 3263d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 327358b8382SJiri Pirko const struct team_option *option, 3283d249d4cSJiri Pirko size_t option_count) 3293d249d4cSJiri Pirko { 3303d249d4cSJiri Pirko int i; 3313d249d4cSJiri Pirko 332358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 333358b8382SJiri Pirko struct team_option *del_opt; 334358b8382SJiri Pirko 335358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 336358b8382SJiri Pirko if (del_opt) { 33780f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 338358b8382SJiri Pirko list_del(&del_opt->list); 339358b8382SJiri Pirko kfree(del_opt); 340358b8382SJiri Pirko } 341358b8382SJiri Pirko } 3423d249d4cSJiri Pirko } 3433d249d4cSJiri Pirko 344b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 345b82b9183SJiri Pirko 346b82b9183SJiri Pirko int team_options_register(struct team *team, 347b82b9183SJiri Pirko const struct team_option *option, 348b82b9183SJiri Pirko size_t option_count) 349b82b9183SJiri Pirko { 350b82b9183SJiri Pirko int err; 351b82b9183SJiri Pirko 352b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 353b82b9183SJiri Pirko if (err) 354b82b9183SJiri Pirko return err; 355b82b9183SJiri Pirko __team_options_change_check(team); 356b82b9183SJiri Pirko return 0; 357b82b9183SJiri Pirko } 358b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 359b82b9183SJiri Pirko 360358b8382SJiri Pirko void team_options_unregister(struct team *team, 361358b8382SJiri Pirko const struct team_option *option, 3623d249d4cSJiri Pirko size_t option_count) 3633d249d4cSJiri Pirko { 364b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 365b82b9183SJiri Pirko __team_options_change_check(team); 3663d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3673d249d4cSJiri Pirko } 3683d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3693d249d4cSJiri Pirko 37080f7c668SJiri Pirko static int team_option_get(struct team *team, 37180f7c668SJiri Pirko struct team_option_inst *opt_inst, 37280f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 37380f7c668SJiri Pirko { 374f82b959dSJiri Pirko if (!opt_inst->option->getter) 375f82b959dSJiri Pirko return -EOPNOTSUPP; 37680f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 37780f7c668SJiri Pirko } 37880f7c668SJiri Pirko 37980f7c668SJiri Pirko static int team_option_set(struct team *team, 38080f7c668SJiri Pirko struct team_option_inst *opt_inst, 38180f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 38280f7c668SJiri Pirko { 383f82b959dSJiri Pirko if (!opt_inst->option->setter) 384f82b959dSJiri Pirko return -EOPNOTSUPP; 3852fcdb2c9SJiri Pirko return opt_inst->option->setter(team, ctx); 3863d249d4cSJiri Pirko } 3873d249d4cSJiri Pirko 3880f1aad2bSJiri Pirko void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) 3890f1aad2bSJiri Pirko { 3900f1aad2bSJiri Pirko struct team_option_inst *opt_inst; 3910f1aad2bSJiri Pirko 3920f1aad2bSJiri Pirko opt_inst = container_of(opt_inst_info, struct team_option_inst, info); 3930f1aad2bSJiri Pirko opt_inst->changed = true; 3940f1aad2bSJiri Pirko } 3950f1aad2bSJiri Pirko EXPORT_SYMBOL(team_option_inst_set_change); 3960f1aad2bSJiri Pirko 3970f1aad2bSJiri Pirko void team_options_change_check(struct team *team) 3980f1aad2bSJiri Pirko { 3990f1aad2bSJiri Pirko __team_options_change_check(team); 4000f1aad2bSJiri Pirko } 4010f1aad2bSJiri Pirko EXPORT_SYMBOL(team_options_change_check); 4020f1aad2bSJiri Pirko 4030f1aad2bSJiri Pirko 4043d249d4cSJiri Pirko /**************** 4053d249d4cSJiri Pirko * Mode handling 4063d249d4cSJiri Pirko ****************/ 4073d249d4cSJiri Pirko 4083d249d4cSJiri Pirko static LIST_HEAD(mode_list); 4093d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 4103d249d4cSJiri Pirko 4110402788aSJiri Pirko struct team_mode_item { 4120402788aSJiri Pirko struct list_head list; 4130402788aSJiri Pirko const struct team_mode *mode; 4140402788aSJiri Pirko }; 4153d249d4cSJiri Pirko 4160402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 4170402788aSJiri Pirko { 4180402788aSJiri Pirko struct team_mode_item *mitem; 4190402788aSJiri Pirko 4200402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 4210402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 4220402788aSJiri Pirko return mitem; 4233d249d4cSJiri Pirko } 4243d249d4cSJiri Pirko return NULL; 4253d249d4cSJiri Pirko } 4263d249d4cSJiri Pirko 4273d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 4283d249d4cSJiri Pirko { 4293d249d4cSJiri Pirko while (*name != '\0') { 4303d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 4313d249d4cSJiri Pirko return false; 4323d249d4cSJiri Pirko name++; 4333d249d4cSJiri Pirko } 4343d249d4cSJiri Pirko return true; 4353d249d4cSJiri Pirko } 4363d249d4cSJiri Pirko 4370402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4383d249d4cSJiri Pirko { 4393d249d4cSJiri Pirko int err = 0; 4400402788aSJiri Pirko struct team_mode_item *mitem; 4413d249d4cSJiri Pirko 4423d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4433d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4443d249d4cSJiri Pirko return -EINVAL; 4450402788aSJiri Pirko 4460402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4470402788aSJiri Pirko if (!mitem) 4480402788aSJiri Pirko return -ENOMEM; 4490402788aSJiri Pirko 4503d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4513d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4523d249d4cSJiri Pirko err = -EEXIST; 4530402788aSJiri Pirko kfree(mitem); 4543d249d4cSJiri Pirko goto unlock; 4553d249d4cSJiri Pirko } 4560402788aSJiri Pirko mitem->mode = mode; 4570402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4583d249d4cSJiri Pirko unlock: 4593d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4603d249d4cSJiri Pirko return err; 4613d249d4cSJiri Pirko } 4623d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4633d249d4cSJiri Pirko 4640402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4653d249d4cSJiri Pirko { 4660402788aSJiri Pirko struct team_mode_item *mitem; 4670402788aSJiri Pirko 4683d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4690402788aSJiri Pirko mitem = __find_mode(mode->kind); 4700402788aSJiri Pirko if (mitem) { 4710402788aSJiri Pirko list_del_init(&mitem->list); 4720402788aSJiri Pirko kfree(mitem); 4730402788aSJiri Pirko } 4743d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4753d249d4cSJiri Pirko } 4763d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4773d249d4cSJiri Pirko 4780402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4793d249d4cSJiri Pirko { 4800402788aSJiri Pirko struct team_mode_item *mitem; 4810402788aSJiri Pirko const struct team_mode *mode = NULL; 4823d249d4cSJiri Pirko 4833d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4840402788aSJiri Pirko mitem = __find_mode(kind); 4850402788aSJiri Pirko if (!mitem) { 4863d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4873d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4883d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4890402788aSJiri Pirko mitem = __find_mode(kind); 4903d249d4cSJiri Pirko } 4910402788aSJiri Pirko if (mitem) { 4920402788aSJiri Pirko mode = mitem->mode; 4933d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4943d249d4cSJiri Pirko mode = NULL; 4950402788aSJiri Pirko } 4963d249d4cSJiri Pirko 4973d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4983d249d4cSJiri Pirko return mode; 4993d249d4cSJiri Pirko } 5003d249d4cSJiri Pirko 5013d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 5023d249d4cSJiri Pirko { 5033d249d4cSJiri Pirko module_put(mode->owner); 5043d249d4cSJiri Pirko } 5053d249d4cSJiri Pirko 5063d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 5073d249d4cSJiri Pirko { 5083d249d4cSJiri Pirko dev_kfree_skb_any(skb); 5093d249d4cSJiri Pirko return false; 5103d249d4cSJiri Pirko } 5113d249d4cSJiri Pirko 5122ea46599Sstephen hemminger static rx_handler_result_t team_dummy_receive(struct team *team, 5133d249d4cSJiri Pirko struct team_port *port, 5143d249d4cSJiri Pirko struct sk_buff *skb) 5153d249d4cSJiri Pirko { 5163d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 5173d249d4cSJiri Pirko } 5183d249d4cSJiri Pirko 519d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 520d299cd51SJiri Pirko .kind = "*NOMODE*", 521d299cd51SJiri Pirko }; 522d299cd51SJiri Pirko 523d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 524d299cd51SJiri Pirko { 525d299cd51SJiri Pirko return team->mode != &__team_no_mode; 526d299cd51SJiri Pirko } 527d299cd51SJiri Pirko 528d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 529d299cd51SJiri Pirko { 530e185483eSFlavio Leitner team->user_carrier_enabled = false; 531d299cd51SJiri Pirko team->mode = &__team_no_mode; 532d299cd51SJiri Pirko } 533d299cd51SJiri Pirko 534735d381fSJiri Pirko static void team_adjust_ops(struct team *team) 5353d249d4cSJiri Pirko { 5363d249d4cSJiri Pirko /* 5373d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5383d249d4cSJiri Pirko * correct ops are always set. 5393d249d4cSJiri Pirko */ 5403d249d4cSJiri Pirko 541735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 542122bb046SJiri Pirko !team->mode->ops->transmit) 5433d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5443d249d4cSJiri Pirko else 5453d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5463d249d4cSJiri Pirko 547735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 548122bb046SJiri Pirko !team->mode->ops->receive) 5493d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5503d249d4cSJiri Pirko else 5513d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5523d249d4cSJiri Pirko } 5533d249d4cSJiri Pirko 5543d249d4cSJiri Pirko /* 5553d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5563d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5573d249d4cSJiri Pirko * need to set mode operations in any special way. 5583d249d4cSJiri Pirko */ 5593d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5603d249d4cSJiri Pirko const struct team_mode *new_mode) 5613d249d4cSJiri Pirko { 5623d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 563d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5643d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5653d249d4cSJiri Pirko 5663d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5673d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5683d249d4cSJiri Pirko team_adjust_ops(team); 5693d249d4cSJiri Pirko 5703d249d4cSJiri Pirko if (exit_op) 5713d249d4cSJiri Pirko exit_op(team); 5723d249d4cSJiri Pirko team_mode_put(team->mode); 573d299cd51SJiri Pirko team_set_no_mode(team); 5743d249d4cSJiri Pirko /* zero private data area */ 5753d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5763d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5773d249d4cSJiri Pirko } 5783d249d4cSJiri Pirko 5793d249d4cSJiri Pirko if (!new_mode) 5803d249d4cSJiri Pirko return 0; 5813d249d4cSJiri Pirko 5823d249d4cSJiri Pirko if (new_mode->ops->init) { 5833d249d4cSJiri Pirko int err; 5843d249d4cSJiri Pirko 5853d249d4cSJiri Pirko err = new_mode->ops->init(team); 5863d249d4cSJiri Pirko if (err) 5873d249d4cSJiri Pirko return err; 5883d249d4cSJiri Pirko } 5893d249d4cSJiri Pirko 5903d249d4cSJiri Pirko team->mode = new_mode; 5913d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5923d249d4cSJiri Pirko team_adjust_ops(team); 5933d249d4cSJiri Pirko 5943d249d4cSJiri Pirko return 0; 5953d249d4cSJiri Pirko } 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5983d249d4cSJiri Pirko { 5990402788aSJiri Pirko const struct team_mode *new_mode; 6003d249d4cSJiri Pirko struct net_device *dev = team->dev; 6013d249d4cSJiri Pirko int err; 6023d249d4cSJiri Pirko 6033d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 6043d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 6053d249d4cSJiri Pirko return -EBUSY; 6063d249d4cSJiri Pirko } 6073d249d4cSJiri Pirko 608d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 6093d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 6103d249d4cSJiri Pirko return -EINVAL; 6113d249d4cSJiri Pirko } 6123d249d4cSJiri Pirko 6133d249d4cSJiri Pirko new_mode = team_mode_get(kind); 6143d249d4cSJiri Pirko if (!new_mode) { 6153d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6163d249d4cSJiri Pirko return -EINVAL; 6173d249d4cSJiri Pirko } 6183d249d4cSJiri Pirko 6193d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6203d249d4cSJiri Pirko if (err) { 6213d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6223d249d4cSJiri Pirko team_mode_put(new_mode); 6233d249d4cSJiri Pirko return err; 6243d249d4cSJiri Pirko } 6253d249d4cSJiri Pirko 6263d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6273d249d4cSJiri Pirko return 0; 6283d249d4cSJiri Pirko } 6293d249d4cSJiri Pirko 6303d249d4cSJiri Pirko 631fc423ff0SJiri Pirko /********************* 632fc423ff0SJiri Pirko * Peers notification 633fc423ff0SJiri Pirko *********************/ 634fc423ff0SJiri Pirko 635fc423ff0SJiri Pirko static void team_notify_peers_work(struct work_struct *work) 636fc423ff0SJiri Pirko { 637fc423ff0SJiri Pirko struct team *team; 638b0d11b42SJiri Pirko int val; 639fc423ff0SJiri Pirko 640fc423ff0SJiri Pirko team = container_of(work, struct team, notify_peers.dw.work); 641fc423ff0SJiri Pirko 642fc423ff0SJiri Pirko if (!rtnl_trylock()) { 643fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 644fc423ff0SJiri Pirko return; 645fc423ff0SJiri Pirko } 646b0d11b42SJiri Pirko val = atomic_dec_if_positive(&team->notify_peers.count_pending); 647b0d11b42SJiri Pirko if (val < 0) { 648b0d11b42SJiri Pirko rtnl_unlock(); 649b0d11b42SJiri Pirko return; 650b0d11b42SJiri Pirko } 651fc423ff0SJiri Pirko call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); 652fc423ff0SJiri Pirko rtnl_unlock(); 653b0d11b42SJiri Pirko if (val) 654fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 655fc423ff0SJiri Pirko msecs_to_jiffies(team->notify_peers.interval)); 656fc423ff0SJiri Pirko } 657fc423ff0SJiri Pirko 658fc423ff0SJiri Pirko static void team_notify_peers(struct team *team) 659fc423ff0SJiri Pirko { 660fc423ff0SJiri Pirko if (!team->notify_peers.count || !netif_running(team->dev)) 661fc423ff0SJiri Pirko return; 66247549650SJoe Lawrence atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); 663fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 664fc423ff0SJiri Pirko } 665fc423ff0SJiri Pirko 666fc423ff0SJiri Pirko static void team_notify_peers_init(struct team *team) 667fc423ff0SJiri Pirko { 668fc423ff0SJiri Pirko INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); 669fc423ff0SJiri Pirko } 670fc423ff0SJiri Pirko 671fc423ff0SJiri Pirko static void team_notify_peers_fini(struct team *team) 672fc423ff0SJiri Pirko { 673fc423ff0SJiri Pirko cancel_delayed_work_sync(&team->notify_peers.dw); 674fc423ff0SJiri Pirko } 675fc423ff0SJiri Pirko 676fc423ff0SJiri Pirko 677492b200eSJiri Pirko /******************************* 678492b200eSJiri Pirko * Send multicast group rejoins 679492b200eSJiri Pirko *******************************/ 680492b200eSJiri Pirko 681492b200eSJiri Pirko static void team_mcast_rejoin_work(struct work_struct *work) 682492b200eSJiri Pirko { 683492b200eSJiri Pirko struct team *team; 684b0d11b42SJiri Pirko int val; 685492b200eSJiri Pirko 686492b200eSJiri Pirko team = container_of(work, struct team, mcast_rejoin.dw.work); 687492b200eSJiri Pirko 688492b200eSJiri Pirko if (!rtnl_trylock()) { 689492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 690492b200eSJiri Pirko return; 691492b200eSJiri Pirko } 692b0d11b42SJiri Pirko val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); 693b0d11b42SJiri Pirko if (val < 0) { 694b0d11b42SJiri Pirko rtnl_unlock(); 695b0d11b42SJiri Pirko return; 696b0d11b42SJiri Pirko } 697492b200eSJiri Pirko call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); 698492b200eSJiri Pirko rtnl_unlock(); 699b0d11b42SJiri Pirko if (val) 700492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 701492b200eSJiri Pirko msecs_to_jiffies(team->mcast_rejoin.interval)); 702492b200eSJiri Pirko } 703492b200eSJiri Pirko 704492b200eSJiri Pirko static void team_mcast_rejoin(struct team *team) 705492b200eSJiri Pirko { 706492b200eSJiri Pirko if (!team->mcast_rejoin.count || !netif_running(team->dev)) 707492b200eSJiri Pirko return; 70847549650SJoe Lawrence atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); 709492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 710492b200eSJiri Pirko } 711492b200eSJiri Pirko 712492b200eSJiri Pirko static void team_mcast_rejoin_init(struct team *team) 713492b200eSJiri Pirko { 714492b200eSJiri Pirko INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); 715492b200eSJiri Pirko } 716492b200eSJiri Pirko 717492b200eSJiri Pirko static void team_mcast_rejoin_fini(struct team *team) 718492b200eSJiri Pirko { 719492b200eSJiri Pirko cancel_delayed_work_sync(&team->mcast_rejoin.dw); 720492b200eSJiri Pirko } 721492b200eSJiri Pirko 722492b200eSJiri Pirko 7233d249d4cSJiri Pirko /************************ 7243d249d4cSJiri Pirko * Rx path frame handler 7253d249d4cSJiri Pirko ************************/ 7263d249d4cSJiri Pirko 7273d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 7283d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 7293d249d4cSJiri Pirko { 7303d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 7313d249d4cSJiri Pirko struct team_port *port; 7323d249d4cSJiri Pirko struct team *team; 7333d249d4cSJiri Pirko rx_handler_result_t res; 7343d249d4cSJiri Pirko 7353d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 7363d249d4cSJiri Pirko if (!skb) 7373d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 7383d249d4cSJiri Pirko 7393d249d4cSJiri Pirko *pskb = skb; 7403d249d4cSJiri Pirko 7413d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 7423d249d4cSJiri Pirko team = port->team; 74319a0b58eSJiri Pirko if (!team_port_enabled(port)) { 74419a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 74519a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 74619a0b58eSJiri Pirko } else { 7473d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 74819a0b58eSJiri Pirko } 7493d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 7503d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 7513d249d4cSJiri Pirko 7523d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 7533d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 7543d249d4cSJiri Pirko pcpu_stats->rx_packets++; 7553d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 7563d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 7573d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 7583d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 7593d249d4cSJiri Pirko 7603d249d4cSJiri Pirko skb->dev = team->dev; 761bb63daf9SJarod Wilson } else if (res == RX_HANDLER_EXACT) { 762bb63daf9SJarod Wilson this_cpu_inc(team->pcpu_stats->rx_nohandler); 7633d249d4cSJiri Pirko } else { 7643d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 7653d249d4cSJiri Pirko } 7663d249d4cSJiri Pirko 7673d249d4cSJiri Pirko return res; 7683d249d4cSJiri Pirko } 7693d249d4cSJiri Pirko 7703d249d4cSJiri Pirko 7718ff5105aSJiri Pirko /************************************* 7728ff5105aSJiri Pirko * Multiqueue Tx port select override 7738ff5105aSJiri Pirko *************************************/ 7748ff5105aSJiri Pirko 7758ff5105aSJiri Pirko static int team_queue_override_init(struct team *team) 7768ff5105aSJiri Pirko { 7778ff5105aSJiri Pirko struct list_head *listarr; 7788ff5105aSJiri Pirko unsigned int queue_cnt = team->dev->num_tx_queues - 1; 7798ff5105aSJiri Pirko unsigned int i; 7808ff5105aSJiri Pirko 7818ff5105aSJiri Pirko if (!queue_cnt) 7828ff5105aSJiri Pirko return 0; 7838ff5105aSJiri Pirko listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); 7848ff5105aSJiri Pirko if (!listarr) 7858ff5105aSJiri Pirko return -ENOMEM; 7868ff5105aSJiri Pirko team->qom_lists = listarr; 7878ff5105aSJiri Pirko for (i = 0; i < queue_cnt; i++) 7888ff5105aSJiri Pirko INIT_LIST_HEAD(listarr++); 7898ff5105aSJiri Pirko return 0; 7908ff5105aSJiri Pirko } 7918ff5105aSJiri Pirko 7928ff5105aSJiri Pirko static void team_queue_override_fini(struct team *team) 7938ff5105aSJiri Pirko { 7948ff5105aSJiri Pirko kfree(team->qom_lists); 7958ff5105aSJiri Pirko } 7968ff5105aSJiri Pirko 7978ff5105aSJiri Pirko static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) 7988ff5105aSJiri Pirko { 7998ff5105aSJiri Pirko return &team->qom_lists[queue_id - 1]; 8008ff5105aSJiri Pirko } 8018ff5105aSJiri Pirko 8028ff5105aSJiri Pirko /* 8038ff5105aSJiri Pirko * note: already called with rcu_read_lock 8048ff5105aSJiri Pirko */ 8058ff5105aSJiri Pirko static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) 8068ff5105aSJiri Pirko { 8078ff5105aSJiri Pirko struct list_head *qom_list; 8088ff5105aSJiri Pirko struct team_port *port; 8098ff5105aSJiri Pirko 8108ff5105aSJiri Pirko if (!team->queue_override_enabled || !skb->queue_mapping) 8118ff5105aSJiri Pirko return false; 8128ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, skb->queue_mapping); 8138ff5105aSJiri Pirko list_for_each_entry_rcu(port, qom_list, qom_list) { 8148ff5105aSJiri Pirko if (!team_dev_queue_xmit(team, port, skb)) 8158ff5105aSJiri Pirko return true; 8168ff5105aSJiri Pirko } 8178ff5105aSJiri Pirko return false; 8188ff5105aSJiri Pirko } 8198ff5105aSJiri Pirko 8208ff5105aSJiri Pirko static void __team_queue_override_port_del(struct team *team, 8218ff5105aSJiri Pirko struct team_port *port) 8228ff5105aSJiri Pirko { 8236c31ff36SJiri Pirko if (!port->queue_id) 8246c31ff36SJiri Pirko return; 8258ff5105aSJiri Pirko list_del_rcu(&port->qom_list); 8268ff5105aSJiri Pirko } 8278ff5105aSJiri Pirko 8288ff5105aSJiri Pirko static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, 8298ff5105aSJiri Pirko struct team_port *cur) 8308ff5105aSJiri Pirko { 8318ff5105aSJiri Pirko if (port->priority < cur->priority) 8328ff5105aSJiri Pirko return true; 8338ff5105aSJiri Pirko if (port->priority > cur->priority) 8348ff5105aSJiri Pirko return false; 8358ff5105aSJiri Pirko if (port->index < cur->index) 8368ff5105aSJiri Pirko return true; 8378ff5105aSJiri Pirko return false; 8388ff5105aSJiri Pirko } 8398ff5105aSJiri Pirko 8408ff5105aSJiri Pirko static void __team_queue_override_port_add(struct team *team, 8418ff5105aSJiri Pirko struct team_port *port) 8428ff5105aSJiri Pirko { 8438ff5105aSJiri Pirko struct team_port *cur; 8448ff5105aSJiri Pirko struct list_head *qom_list; 8458ff5105aSJiri Pirko struct list_head *node; 8468ff5105aSJiri Pirko 8476c31ff36SJiri Pirko if (!port->queue_id) 8488ff5105aSJiri Pirko return; 8498ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, port->queue_id); 8508ff5105aSJiri Pirko node = qom_list; 8518ff5105aSJiri Pirko list_for_each_entry(cur, qom_list, qom_list) { 8528ff5105aSJiri Pirko if (team_queue_override_port_has_gt_prio_than(port, cur)) 8538ff5105aSJiri Pirko break; 8548ff5105aSJiri Pirko node = &cur->qom_list; 8558ff5105aSJiri Pirko } 8568ff5105aSJiri Pirko list_add_tail_rcu(&port->qom_list, node); 8578ff5105aSJiri Pirko } 8588ff5105aSJiri Pirko 8598ff5105aSJiri Pirko static void __team_queue_override_enabled_check(struct team *team) 8608ff5105aSJiri Pirko { 8618ff5105aSJiri Pirko struct team_port *port; 8628ff5105aSJiri Pirko bool enabled = false; 8638ff5105aSJiri Pirko 8648ff5105aSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 8656c31ff36SJiri Pirko if (port->queue_id) { 8668ff5105aSJiri Pirko enabled = true; 8678ff5105aSJiri Pirko break; 8688ff5105aSJiri Pirko } 8698ff5105aSJiri Pirko } 8708ff5105aSJiri Pirko if (enabled == team->queue_override_enabled) 8718ff5105aSJiri Pirko return; 8728ff5105aSJiri Pirko netdev_dbg(team->dev, "%s queue override\n", 8738ff5105aSJiri Pirko enabled ? "Enabling" : "Disabling"); 8748ff5105aSJiri Pirko team->queue_override_enabled = enabled; 8758ff5105aSJiri Pirko } 8768ff5105aSJiri Pirko 8776c31ff36SJiri Pirko static void team_queue_override_port_prio_changed(struct team *team, 8786c31ff36SJiri Pirko struct team_port *port) 8796c31ff36SJiri Pirko { 8806c31ff36SJiri Pirko if (!port->queue_id || team_port_enabled(port)) 8816c31ff36SJiri Pirko return; 8826c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 8836c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8846c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8856c31ff36SJiri Pirko } 8866c31ff36SJiri Pirko 8876c31ff36SJiri Pirko static void team_queue_override_port_change_queue_id(struct team *team, 8886c31ff36SJiri Pirko struct team_port *port, 8896c31ff36SJiri Pirko u16 new_queue_id) 8906c31ff36SJiri Pirko { 8916c31ff36SJiri Pirko if (team_port_enabled(port)) { 8926c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 8936c31ff36SJiri Pirko port->queue_id = new_queue_id; 8946c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8956c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8966c31ff36SJiri Pirko } else { 8976c31ff36SJiri Pirko port->queue_id = new_queue_id; 8986c31ff36SJiri Pirko } 8996c31ff36SJiri Pirko } 9006c31ff36SJiri Pirko 9016c31ff36SJiri Pirko static void team_queue_override_port_add(struct team *team, 9026c31ff36SJiri Pirko struct team_port *port) 9036c31ff36SJiri Pirko { 9046c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 9056c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 9066c31ff36SJiri Pirko } 9076c31ff36SJiri Pirko 9086c31ff36SJiri Pirko static void team_queue_override_port_del(struct team *team, 9098ff5105aSJiri Pirko struct team_port *port) 9108ff5105aSJiri Pirko { 9118ff5105aSJiri Pirko __team_queue_override_port_del(team, port); 9128ff5105aSJiri Pirko __team_queue_override_enabled_check(team); 9138ff5105aSJiri Pirko } 9148ff5105aSJiri Pirko 9158ff5105aSJiri Pirko 9163d249d4cSJiri Pirko /**************** 9173d249d4cSJiri Pirko * Port handling 9183d249d4cSJiri Pirko ****************/ 9193d249d4cSJiri Pirko 9203d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 9213d249d4cSJiri Pirko const struct team_port *port) 9223d249d4cSJiri Pirko { 9233d249d4cSJiri Pirko struct team_port *cur; 9243d249d4cSJiri Pirko 9253d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 9263d249d4cSJiri Pirko if (cur == port) 9273d249d4cSJiri Pirko return true; 9283d249d4cSJiri Pirko return false; 9293d249d4cSJiri Pirko } 9303d249d4cSJiri Pirko 9313d249d4cSJiri Pirko /* 93219a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 93319a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 93419a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 93519a0b58eSJiri Pirko * by team->lock. 9363d249d4cSJiri Pirko */ 93719a0b58eSJiri Pirko static void team_port_enable(struct team *team, 9383d249d4cSJiri Pirko struct team_port *port) 9393d249d4cSJiri Pirko { 94019a0b58eSJiri Pirko if (team_port_enabled(port)) 94119a0b58eSJiri Pirko return; 94219a0b58eSJiri Pirko port->index = team->en_port_count++; 9433d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9443d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 945122bb046SJiri Pirko team_adjust_ops(team); 9466c31ff36SJiri Pirko team_queue_override_port_add(team, port); 9474bccfd17SJiri Pirko if (team->ops.port_enabled) 9484bccfd17SJiri Pirko team->ops.port_enabled(team, port); 949fc423ff0SJiri Pirko team_notify_peers(team); 950492b200eSJiri Pirko team_mcast_rejoin(team); 9513a0d6c5aSJiri Pirko team_lower_state_changed(port); 9523d249d4cSJiri Pirko } 9533d249d4cSJiri Pirko 9543d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 9553d249d4cSJiri Pirko { 9563d249d4cSJiri Pirko int i; 9573d249d4cSJiri Pirko struct team_port *port; 9583d249d4cSJiri Pirko 95919a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 9603d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 9613d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 9623d249d4cSJiri Pirko port->index--; 9633d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9643d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 9653d249d4cSJiri Pirko } 9663d249d4cSJiri Pirko } 9673d249d4cSJiri Pirko 96819a0b58eSJiri Pirko static void team_port_disable(struct team *team, 9693d249d4cSJiri Pirko struct team_port *port) 9703d249d4cSJiri Pirko { 97119a0b58eSJiri Pirko if (!team_port_enabled(port)) 97219a0b58eSJiri Pirko return; 9734bccfd17SJiri Pirko if (team->ops.port_disabled) 9744bccfd17SJiri Pirko team->ops.port_disabled(team, port); 9753d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 976122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 97719a0b58eSJiri Pirko port->index = -1; 978122bb046SJiri Pirko team->en_port_count--; 979735d381fSJiri Pirko team_queue_override_port_del(team, port); 980735d381fSJiri Pirko team_adjust_ops(team); 981fc423ff0SJiri Pirko team_notify_peers(team); 982492b200eSJiri Pirko team_mcast_rejoin(team); 9833a0d6c5aSJiri Pirko team_lower_state_changed(port); 9843d249d4cSJiri Pirko } 9853d249d4cSJiri Pirko 986a188222bSTom Herbert #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ 9873d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 9883d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 9893d249d4cSJiri Pirko 9903268e5cbSEran Ben Elisha #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ 9913268e5cbSEran Ben Elisha NETIF_F_RXCSUM | NETIF_F_ALL_TSO) 9923268e5cbSEran Ben Elisha 99316cf72bbSXin Long static void __team_compute_features(struct team *team) 9943d249d4cSJiri Pirko { 9953d249d4cSJiri Pirko struct team_port *port; 9963625920bSMichal Kubeček u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; 9973268e5cbSEran Ben Elisha netdev_features_t enc_features = TEAM_ENC_FEATURES; 9983d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 99902875878SEric Dumazet unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | 100002875878SEric Dumazet IFF_XMIT_DST_RELEASE_PERM; 10013d249d4cSJiri Pirko 10023d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 10033d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 10043d249d4cSJiri Pirko port->dev->vlan_features, 10053d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 10063268e5cbSEran Ben Elisha enc_features = 10073268e5cbSEran Ben Elisha netdev_increment_features(enc_features, 10083268e5cbSEran Ben Elisha port->dev->hw_enc_features, 10093268e5cbSEran Ben Elisha TEAM_ENC_FEATURES); 10103268e5cbSEran Ben Elisha 10113d249d4cSJiri Pirko 1012dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 10133d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 10143d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 10153d249d4cSJiri Pirko } 10163d249d4cSJiri Pirko 10173d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 10183268e5cbSEran Ben Elisha team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL; 10193d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 10203d249d4cSJiri Pirko 102102875878SEric Dumazet team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; 102202875878SEric Dumazet if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) 102302875878SEric Dumazet team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; 1024f6988cb6SIvan Vecera } 1025dc905951SJiri Pirko 10263d249d4cSJiri Pirko static void team_compute_features(struct team *team) 10273d249d4cSJiri Pirko { 102861dc3461SJiri Pirko mutex_lock(&team->lock); 102916cf72bbSXin Long __team_compute_features(team); 103061dc3461SJiri Pirko mutex_unlock(&team->lock); 1031f6988cb6SIvan Vecera netdev_change_features(team->dev); 10323d249d4cSJiri Pirko } 10333d249d4cSJiri Pirko 10343d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 10353d249d4cSJiri Pirko { 10363d249d4cSJiri Pirko int err = 0; 10373d249d4cSJiri Pirko 10383d249d4cSJiri Pirko dev_hold(team->dev); 10393d249d4cSJiri Pirko if (team->ops.port_enter) { 10403d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 10413d249d4cSJiri Pirko if (err) { 10423d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 10433d249d4cSJiri Pirko port->dev->name); 10443d249d4cSJiri Pirko goto err_port_enter; 10453d249d4cSJiri Pirko } 10463d249d4cSJiri Pirko } 10473d249d4cSJiri Pirko 10483d249d4cSJiri Pirko return 0; 10493d249d4cSJiri Pirko 10503d249d4cSJiri Pirko err_port_enter: 10513d249d4cSJiri Pirko dev_put(team->dev); 10523d249d4cSJiri Pirko 10533d249d4cSJiri Pirko return err; 10543d249d4cSJiri Pirko } 10553d249d4cSJiri Pirko 10563d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 10573d249d4cSJiri Pirko { 10583d249d4cSJiri Pirko if (team->ops.port_leave) 10593d249d4cSJiri Pirko team->ops.port_leave(team, port); 10603d249d4cSJiri Pirko dev_put(team->dev); 10613d249d4cSJiri Pirko } 10623d249d4cSJiri Pirko 1063bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1064a8779ec1SEric W. Biederman static int team_port_enable_netpoll(struct team *team, struct team_port *port) 1065bd2d0837SJiri Pirko { 1066bd2d0837SJiri Pirko struct netpoll *np; 1067bd2d0837SJiri Pirko int err; 1068bd2d0837SJiri Pirko 10690fb52a27Sstephen hemminger if (!team->dev->npinfo) 10700fb52a27Sstephen hemminger return 0; 10710fb52a27Sstephen hemminger 1072a8779ec1SEric W. Biederman np = kzalloc(sizeof(*np), GFP_KERNEL); 1073bd2d0837SJiri Pirko if (!np) 1074bd2d0837SJiri Pirko return -ENOMEM; 1075bd2d0837SJiri Pirko 1076a8779ec1SEric W. Biederman err = __netpoll_setup(np, port->dev); 1077bd2d0837SJiri Pirko if (err) { 1078bd2d0837SJiri Pirko kfree(np); 1079bd2d0837SJiri Pirko return err; 1080bd2d0837SJiri Pirko } 1081bd2d0837SJiri Pirko port->np = np; 1082bd2d0837SJiri Pirko return err; 1083bd2d0837SJiri Pirko } 1084bd2d0837SJiri Pirko 1085bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1086bd2d0837SJiri Pirko { 1087bd2d0837SJiri Pirko struct netpoll *np = port->np; 1088bd2d0837SJiri Pirko 1089bd2d0837SJiri Pirko if (!np) 1090bd2d0837SJiri Pirko return; 1091bd2d0837SJiri Pirko port->np = NULL; 1092bd2d0837SJiri Pirko 1093bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 1094bd2d0837SJiri Pirko synchronize_rcu_bh(); 1095bd2d0837SJiri Pirko __netpoll_cleanup(np); 1096bd2d0837SJiri Pirko kfree(np); 1097bd2d0837SJiri Pirko } 1098bd2d0837SJiri Pirko #else 1099a8779ec1SEric W. Biederman static int team_port_enable_netpoll(struct team *team, struct team_port *port) 1100bd2d0837SJiri Pirko { 1101bd2d0837SJiri Pirko return 0; 1102bd2d0837SJiri Pirko } 1103bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1104bd2d0837SJiri Pirko { 1105bd2d0837SJiri Pirko } 1106bd2d0837SJiri Pirko #endif 1107bd2d0837SJiri Pirko 11088fd72856SJiri Pirko static int team_upper_dev_link(struct team *team, struct team_port *port) 1109d7d3c051SJiri Pirko { 11108fd72856SJiri Pirko struct netdev_lag_upper_info lag_upper_info; 1111d7d3c051SJiri Pirko int err; 1112d7d3c051SJiri Pirko 11138fd72856SJiri Pirko lag_upper_info.tx_type = team->mode->lag_tx_type; 11148fd72856SJiri Pirko err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, 11158fd72856SJiri Pirko &lag_upper_info); 1116d7d3c051SJiri Pirko if (err) 1117d7d3c051SJiri Pirko return err; 11188fd72856SJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 1119d7d3c051SJiri Pirko return 0; 1120d7d3c051SJiri Pirko } 1121d7d3c051SJiri Pirko 11228fd72856SJiri Pirko static void team_upper_dev_unlink(struct team *team, struct team_port *port) 1123d7d3c051SJiri Pirko { 11248fd72856SJiri Pirko netdev_upper_dev_unlink(port->dev, team->dev); 11258fd72856SJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 1126d7d3c051SJiri Pirko } 1127d7d3c051SJiri Pirko 112810f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup); 11291d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 11301d76efe1SJiri Pirko struct net_device *port_dev); 11313d249d4cSJiri Pirko 11323d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 11333d249d4cSJiri Pirko { 11343d249d4cSJiri Pirko struct net_device *dev = team->dev; 11353d249d4cSJiri Pirko struct team_port *port; 11363d249d4cSJiri Pirko char *portname = port_dev->name; 11373d249d4cSJiri Pirko int err; 11383d249d4cSJiri Pirko 11391d76efe1SJiri Pirko if (port_dev->flags & IFF_LOOPBACK) { 11401d76efe1SJiri Pirko netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", 11413d249d4cSJiri Pirko portname); 11423d249d4cSJiri Pirko return -EINVAL; 11433d249d4cSJiri Pirko } 11443d249d4cSJiri Pirko 11453d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 11463d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 11473d249d4cSJiri Pirko "of a team device\n", portname); 11483d249d4cSJiri Pirko return -EBUSY; 11493d249d4cSJiri Pirko } 11503d249d4cSJiri Pirko 11512c33bb37SJiri Pirko if (port_dev->features & NETIF_F_VLAN_CHALLENGED && 11522c33bb37SJiri Pirko vlan_uses_dev(dev)) { 11532c33bb37SJiri Pirko netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", 11542c33bb37SJiri Pirko portname); 11552c33bb37SJiri Pirko return -EPERM; 11562c33bb37SJiri Pirko } 11572c33bb37SJiri Pirko 11581d76efe1SJiri Pirko err = team_dev_type_check_change(dev, port_dev); 11591d76efe1SJiri Pirko if (err) 11601d76efe1SJiri Pirko return err; 11611d76efe1SJiri Pirko 11623d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 11633d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 11643d249d4cSJiri Pirko portname); 11653d249d4cSJiri Pirko return -EBUSY; 11663d249d4cSJiri Pirko } 11673d249d4cSJiri Pirko 11685149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 11695149ee58SJiri Pirko GFP_KERNEL); 11703d249d4cSJiri Pirko if (!port) 11713d249d4cSJiri Pirko return -ENOMEM; 11723d249d4cSJiri Pirko 11733d249d4cSJiri Pirko port->dev = port_dev; 11743d249d4cSJiri Pirko port->team = team; 11758ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 11763d249d4cSJiri Pirko 11773d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 11783d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 11793d249d4cSJiri Pirko if (err) { 11803d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 11813d249d4cSJiri Pirko goto err_set_mtu; 11823d249d4cSJiri Pirko } 11833d249d4cSJiri Pirko 11841d76efe1SJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); 11853d249d4cSJiri Pirko 11863d249d4cSJiri Pirko err = team_port_enter(team, port); 11873d249d4cSJiri Pirko if (err) { 11883d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 11893d249d4cSJiri Pirko portname); 11903d249d4cSJiri Pirko goto err_port_enter; 11913d249d4cSJiri Pirko } 11923d249d4cSJiri Pirko 11933d249d4cSJiri Pirko err = dev_open(port_dev); 11943d249d4cSJiri Pirko if (err) { 11953d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 11963d249d4cSJiri Pirko portname); 11973d249d4cSJiri Pirko goto err_dev_open; 11983d249d4cSJiri Pirko } 11993d249d4cSJiri Pirko 1200942f64c4SIdo Schimmel netif_addr_lock_bh(dev); 1201cb41c997SXin Long dev_uc_sync_multiple(port_dev, dev); 1202cb41c997SXin Long dev_mc_sync_multiple(port_dev, dev); 1203942f64c4SIdo Schimmel netif_addr_unlock_bh(dev); 1204cb41c997SXin Long 120557459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 120657459185SJiri Pirko if (err) { 120757459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 120857459185SJiri Pirko portname); 120957459185SJiri Pirko goto err_vids_add; 121057459185SJiri Pirko } 121157459185SJiri Pirko 1212a8779ec1SEric W. Biederman err = team_port_enable_netpoll(team, port); 1213bd2d0837SJiri Pirko if (err) { 1214bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 1215bd2d0837SJiri Pirko portname); 1216bd2d0837SJiri Pirko goto err_enable_netpoll; 1217bd2d0837SJiri Pirko } 1218bd2d0837SJiri Pirko 1219fbe168baSMichal Kubeček if (!(dev->features & NETIF_F_LRO)) 1220fbe168baSMichal Kubeček dev_disable_lro(port_dev); 1221fbe168baSMichal Kubeček 12223d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 12233d249d4cSJiri Pirko port); 12243d249d4cSJiri Pirko if (err) { 12253d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 12263d249d4cSJiri Pirko portname); 12273d249d4cSJiri Pirko goto err_handler_register; 12283d249d4cSJiri Pirko } 12293d249d4cSJiri Pirko 12308fd72856SJiri Pirko err = team_upper_dev_link(team, port); 1231d7d3c051SJiri Pirko if (err) { 1232d7d3c051SJiri Pirko netdev_err(dev, "Device %s failed to set upper link\n", 1233d7d3c051SJiri Pirko portname); 1234d7d3c051SJiri Pirko goto err_set_upper_link; 1235d7d3c051SJiri Pirko } 1236d7d3c051SJiri Pirko 123735b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 123880f7c668SJiri Pirko if (err) { 123980f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 124080f7c668SJiri Pirko portname); 124180f7c668SJiri Pirko goto err_option_port_add; 124280f7c668SJiri Pirko } 124380f7c668SJiri Pirko 124419a0b58eSJiri Pirko port->index = -1; 124519a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 124672df935dSJiri Pirko team_port_enable(team, port); 12473d249d4cSJiri Pirko __team_compute_features(team); 124810f3f51dSJiri Pirko __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); 124935b384bdSJiri Pirko __team_options_change_check(team); 12503d249d4cSJiri Pirko 12513d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 12523d249d4cSJiri Pirko 12533d249d4cSJiri Pirko return 0; 12543d249d4cSJiri Pirko 125580f7c668SJiri Pirko err_option_port_add: 12568fd72856SJiri Pirko team_upper_dev_unlink(team, port); 1257d7d3c051SJiri Pirko 1258d7d3c051SJiri Pirko err_set_upper_link: 125980f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 126080f7c668SJiri Pirko 12613d249d4cSJiri Pirko err_handler_register: 1262bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1263bd2d0837SJiri Pirko 1264bd2d0837SJiri Pirko err_enable_netpoll: 126557459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 126657459185SJiri Pirko 126757459185SJiri Pirko err_vids_add: 1268cb41c997SXin Long dev_uc_unsync(port_dev, dev); 1269cb41c997SXin Long dev_mc_unsync(port_dev, dev); 12703d249d4cSJiri Pirko dev_close(port_dev); 12713d249d4cSJiri Pirko 12723d249d4cSJiri Pirko err_dev_open: 12733d249d4cSJiri Pirko team_port_leave(team, port); 12741d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 12753d249d4cSJiri Pirko 12763d249d4cSJiri Pirko err_port_enter: 12773d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 12783d249d4cSJiri Pirko 12793d249d4cSJiri Pirko err_set_mtu: 12803d249d4cSJiri Pirko kfree(port); 12813d249d4cSJiri Pirko 12823d249d4cSJiri Pirko return err; 12833d249d4cSJiri Pirko } 12843d249d4cSJiri Pirko 128510f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port); 128610f3f51dSJiri Pirko 12873d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 12883d249d4cSJiri Pirko { 12893d249d4cSJiri Pirko struct net_device *dev = team->dev; 12903d249d4cSJiri Pirko struct team_port *port; 12913d249d4cSJiri Pirko char *portname = port_dev->name; 12923d249d4cSJiri Pirko 12933d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 12943d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 12953d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 12963d249d4cSJiri Pirko portname); 12973d249d4cSJiri Pirko return -ENOENT; 12983d249d4cSJiri Pirko } 12993d249d4cSJiri Pirko 130019a0b58eSJiri Pirko team_port_disable(team, port); 130119a0b58eSJiri Pirko list_del_rcu(&port->list); 13028fd72856SJiri Pirko team_upper_dev_unlink(team, port); 13033d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 1304bd2d0837SJiri Pirko team_port_disable_netpoll(port); 130557459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 1306ba81276bSVlad Yasevich dev_uc_unsync(port_dev, dev); 1307ba81276bSVlad Yasevich dev_mc_unsync(port_dev, dev); 13083d249d4cSJiri Pirko dev_close(port_dev); 13093d249d4cSJiri Pirko team_port_leave(team, port); 1310c3969d80SJiri Pirko 1311c3969d80SJiri Pirko __team_option_inst_mark_removed_port(team, port); 1312c3969d80SJiri Pirko __team_options_change_check(team); 1313c3969d80SJiri Pirko __team_option_inst_del_port(team, port); 1314c3969d80SJiri Pirko __team_port_change_port_removed(port); 1315c3969d80SJiri Pirko 13161d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 13173d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 1318d80b35beSJiri Pirko kfree_rcu(port, rcu); 13193d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 13203d249d4cSJiri Pirko __team_compute_features(team); 13213d249d4cSJiri Pirko 13223d249d4cSJiri Pirko return 0; 13233d249d4cSJiri Pirko } 13243d249d4cSJiri Pirko 13253d249d4cSJiri Pirko 13263d249d4cSJiri Pirko /***************** 13273d249d4cSJiri Pirko * Net device ops 13283d249d4cSJiri Pirko *****************/ 13293d249d4cSJiri Pirko 133080f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 13313d249d4cSJiri Pirko { 1332d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 13333d249d4cSJiri Pirko return 0; 13343d249d4cSJiri Pirko } 13353d249d4cSJiri Pirko 133680f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 13373d249d4cSJiri Pirko { 133880f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 13393d249d4cSJiri Pirko } 13403d249d4cSJiri Pirko 1341fc423ff0SJiri Pirko static int team_notify_peers_count_get(struct team *team, 1342fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1343fc423ff0SJiri Pirko { 1344fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.count; 1345fc423ff0SJiri Pirko return 0; 1346fc423ff0SJiri Pirko } 1347fc423ff0SJiri Pirko 1348fc423ff0SJiri Pirko static int team_notify_peers_count_set(struct team *team, 1349fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1350fc423ff0SJiri Pirko { 1351fc423ff0SJiri Pirko team->notify_peers.count = ctx->data.u32_val; 1352fc423ff0SJiri Pirko return 0; 1353fc423ff0SJiri Pirko } 1354fc423ff0SJiri Pirko 1355fc423ff0SJiri Pirko static int team_notify_peers_interval_get(struct team *team, 1356fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1357fc423ff0SJiri Pirko { 1358fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.interval; 1359fc423ff0SJiri Pirko return 0; 1360fc423ff0SJiri Pirko } 1361fc423ff0SJiri Pirko 1362fc423ff0SJiri Pirko static int team_notify_peers_interval_set(struct team *team, 1363fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1364fc423ff0SJiri Pirko { 1365fc423ff0SJiri Pirko team->notify_peers.interval = ctx->data.u32_val; 1366fc423ff0SJiri Pirko return 0; 1367fc423ff0SJiri Pirko } 1368fc423ff0SJiri Pirko 1369492b200eSJiri Pirko static int team_mcast_rejoin_count_get(struct team *team, 1370492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1371492b200eSJiri Pirko { 1372492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.count; 1373492b200eSJiri Pirko return 0; 1374492b200eSJiri Pirko } 1375492b200eSJiri Pirko 1376492b200eSJiri Pirko static int team_mcast_rejoin_count_set(struct team *team, 1377492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1378492b200eSJiri Pirko { 1379492b200eSJiri Pirko team->mcast_rejoin.count = ctx->data.u32_val; 1380492b200eSJiri Pirko return 0; 1381492b200eSJiri Pirko } 1382492b200eSJiri Pirko 1383492b200eSJiri Pirko static int team_mcast_rejoin_interval_get(struct team *team, 1384492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1385492b200eSJiri Pirko { 1386492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.interval; 1387492b200eSJiri Pirko return 0; 1388492b200eSJiri Pirko } 1389492b200eSJiri Pirko 1390492b200eSJiri Pirko static int team_mcast_rejoin_interval_set(struct team *team, 1391492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1392492b200eSJiri Pirko { 1393492b200eSJiri Pirko team->mcast_rejoin.interval = ctx->data.u32_val; 1394492b200eSJiri Pirko return 0; 1395492b200eSJiri Pirko } 1396492b200eSJiri Pirko 1397acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1398acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1399acd69962SJiri Pirko { 140085d59a87SJiri Pirko struct team_port *port = ctx->info->port; 140185d59a87SJiri Pirko 140285d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1403acd69962SJiri Pirko return 0; 1404acd69962SJiri Pirko } 1405acd69962SJiri Pirko 1406acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1407acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1408acd69962SJiri Pirko { 140985d59a87SJiri Pirko struct team_port *port = ctx->info->port; 141085d59a87SJiri Pirko 1411acd69962SJiri Pirko if (ctx->data.bool_val) 141285d59a87SJiri Pirko team_port_enable(team, port); 1413acd69962SJiri Pirko else 141485d59a87SJiri Pirko team_port_disable(team, port); 1415acd69962SJiri Pirko return 0; 1416acd69962SJiri Pirko } 1417acd69962SJiri Pirko 141871472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 141971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 142071472ec1SJiri Pirko { 142185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 142285d59a87SJiri Pirko 142385d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 142471472ec1SJiri Pirko return 0; 142571472ec1SJiri Pirko } 142671472ec1SJiri Pirko 1427f5e0d343SJiri Pirko static void __team_carrier_check(struct team *team); 1428f5e0d343SJiri Pirko 142971472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 143071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 143171472ec1SJiri Pirko { 143285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 143385d59a87SJiri Pirko 143485d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 143585d59a87SJiri Pirko team_refresh_port_linkup(port); 1436f5e0d343SJiri Pirko __team_carrier_check(port->team); 143771472ec1SJiri Pirko return 0; 143871472ec1SJiri Pirko } 143971472ec1SJiri Pirko 144071472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 144171472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 144271472ec1SJiri Pirko { 144385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 144471472ec1SJiri Pirko 144571472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 144671472ec1SJiri Pirko return 0; 144771472ec1SJiri Pirko } 144871472ec1SJiri Pirko 144971472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 145071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 145171472ec1SJiri Pirko { 145285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 145371472ec1SJiri Pirko 145471472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 145585d59a87SJiri Pirko team_refresh_port_linkup(port); 1456f5e0d343SJiri Pirko __team_carrier_check(port->team); 145771472ec1SJiri Pirko return 0; 145871472ec1SJiri Pirko } 145971472ec1SJiri Pirko 1460a86fc6b7SJiri Pirko static int team_priority_option_get(struct team *team, 1461a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1462a86fc6b7SJiri Pirko { 1463a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1464a86fc6b7SJiri Pirko 1465a86fc6b7SJiri Pirko ctx->data.s32_val = port->priority; 1466a86fc6b7SJiri Pirko return 0; 1467a86fc6b7SJiri Pirko } 1468a86fc6b7SJiri Pirko 1469a86fc6b7SJiri Pirko static int team_priority_option_set(struct team *team, 1470a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1471a86fc6b7SJiri Pirko { 1472a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 14736c31ff36SJiri Pirko s32 priority = ctx->data.s32_val; 1474a86fc6b7SJiri Pirko 14756c31ff36SJiri Pirko if (port->priority == priority) 14766c31ff36SJiri Pirko return 0; 14776c31ff36SJiri Pirko port->priority = priority; 14786c31ff36SJiri Pirko team_queue_override_port_prio_changed(team, port); 1479a86fc6b7SJiri Pirko return 0; 1480a86fc6b7SJiri Pirko } 1481a86fc6b7SJiri Pirko 14828ff5105aSJiri Pirko static int team_queue_id_option_get(struct team *team, 14838ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 14848ff5105aSJiri Pirko { 14858ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 14868ff5105aSJiri Pirko 14878ff5105aSJiri Pirko ctx->data.u32_val = port->queue_id; 14888ff5105aSJiri Pirko return 0; 14898ff5105aSJiri Pirko } 14908ff5105aSJiri Pirko 14918ff5105aSJiri Pirko static int team_queue_id_option_set(struct team *team, 14928ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 14938ff5105aSJiri Pirko { 14948ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 14956c31ff36SJiri Pirko u16 new_queue_id = ctx->data.u32_val; 14968ff5105aSJiri Pirko 14976c31ff36SJiri Pirko if (port->queue_id == new_queue_id) 14988ff5105aSJiri Pirko return 0; 14996c31ff36SJiri Pirko if (new_queue_id >= team->dev->real_num_tx_queues) 15008ff5105aSJiri Pirko return -EINVAL; 15016c31ff36SJiri Pirko team_queue_override_port_change_queue_id(team, port, new_queue_id); 15028ff5105aSJiri Pirko return 0; 15038ff5105aSJiri Pirko } 15048ff5105aSJiri Pirko 1505358b8382SJiri Pirko static const struct team_option team_options[] = { 15063d249d4cSJiri Pirko { 15073d249d4cSJiri Pirko .name = "mode", 15083d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 15093d249d4cSJiri Pirko .getter = team_mode_option_get, 15103d249d4cSJiri Pirko .setter = team_mode_option_set, 15113d249d4cSJiri Pirko }, 151271472ec1SJiri Pirko { 1513fc423ff0SJiri Pirko .name = "notify_peers_count", 1514fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1515fc423ff0SJiri Pirko .getter = team_notify_peers_count_get, 1516fc423ff0SJiri Pirko .setter = team_notify_peers_count_set, 1517fc423ff0SJiri Pirko }, 1518fc423ff0SJiri Pirko { 1519fc423ff0SJiri Pirko .name = "notify_peers_interval", 1520fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1521fc423ff0SJiri Pirko .getter = team_notify_peers_interval_get, 1522fc423ff0SJiri Pirko .setter = team_notify_peers_interval_set, 1523fc423ff0SJiri Pirko }, 1524fc423ff0SJiri Pirko { 1525492b200eSJiri Pirko .name = "mcast_rejoin_count", 1526492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1527492b200eSJiri Pirko .getter = team_mcast_rejoin_count_get, 1528492b200eSJiri Pirko .setter = team_mcast_rejoin_count_set, 1529492b200eSJiri Pirko }, 1530492b200eSJiri Pirko { 1531492b200eSJiri Pirko .name = "mcast_rejoin_interval", 1532492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1533492b200eSJiri Pirko .getter = team_mcast_rejoin_interval_get, 1534492b200eSJiri Pirko .setter = team_mcast_rejoin_interval_set, 1535492b200eSJiri Pirko }, 1536492b200eSJiri Pirko { 1537acd69962SJiri Pirko .name = "enabled", 1538acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1539acd69962SJiri Pirko .per_port = true, 1540acd69962SJiri Pirko .getter = team_port_en_option_get, 1541acd69962SJiri Pirko .setter = team_port_en_option_set, 1542acd69962SJiri Pirko }, 1543acd69962SJiri Pirko { 154471472ec1SJiri Pirko .name = "user_linkup", 154571472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 154671472ec1SJiri Pirko .per_port = true, 154771472ec1SJiri Pirko .getter = team_user_linkup_option_get, 154871472ec1SJiri Pirko .setter = team_user_linkup_option_set, 154971472ec1SJiri Pirko }, 155071472ec1SJiri Pirko { 155171472ec1SJiri Pirko .name = "user_linkup_enabled", 155271472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 155371472ec1SJiri Pirko .per_port = true, 155471472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 155571472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 155671472ec1SJiri Pirko }, 1557a86fc6b7SJiri Pirko { 1558a86fc6b7SJiri Pirko .name = "priority", 1559a86fc6b7SJiri Pirko .type = TEAM_OPTION_TYPE_S32, 1560a86fc6b7SJiri Pirko .per_port = true, 1561a86fc6b7SJiri Pirko .getter = team_priority_option_get, 1562a86fc6b7SJiri Pirko .setter = team_priority_option_set, 1563a86fc6b7SJiri Pirko }, 15648ff5105aSJiri Pirko { 15658ff5105aSJiri Pirko .name = "queue_id", 15668ff5105aSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 15678ff5105aSJiri Pirko .per_port = true, 15688ff5105aSJiri Pirko .getter = team_queue_id_option_get, 15698ff5105aSJiri Pirko .setter = team_queue_id_option_set, 15708ff5105aSJiri Pirko }, 15713d249d4cSJiri Pirko }; 15723d249d4cSJiri Pirko 15736c85f2bdSJiri Pirko 15743d249d4cSJiri Pirko static int team_init(struct net_device *dev) 15753d249d4cSJiri Pirko { 15763d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15773d249d4cSJiri Pirko int i; 1578358b8382SJiri Pirko int err; 15793d249d4cSJiri Pirko 15803d249d4cSJiri Pirko team->dev = dev; 158161dc3461SJiri Pirko mutex_init(&team->lock); 1582d299cd51SJiri Pirko team_set_no_mode(team); 15833d249d4cSJiri Pirko 15841c213bd2SWANG Cong team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); 15853d249d4cSJiri Pirko if (!team->pcpu_stats) 15863d249d4cSJiri Pirko return -ENOMEM; 15873d249d4cSJiri Pirko 15883d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 158919a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 15903d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 15918ff5105aSJiri Pirko err = team_queue_override_init(team); 15928ff5105aSJiri Pirko if (err) 15938ff5105aSJiri Pirko goto err_team_queue_override_init; 15943d249d4cSJiri Pirko 15953d249d4cSJiri Pirko team_adjust_ops(team); 15963d249d4cSJiri Pirko 15973d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 159880f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1599fc423ff0SJiri Pirko 1600fc423ff0SJiri Pirko team_notify_peers_init(team); 1601492b200eSJiri Pirko team_mcast_rejoin_init(team); 1602fc423ff0SJiri Pirko 1603358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1604358b8382SJiri Pirko if (err) 1605358b8382SJiri Pirko goto err_options_register; 16063d249d4cSJiri Pirko netif_carrier_off(dev); 16073d249d4cSJiri Pirko 1608d3fff6c4SEric Dumazet netdev_lockdep_set_classes(dev); 16096c85f2bdSJiri Pirko 16103d249d4cSJiri Pirko return 0; 1611358b8382SJiri Pirko 1612358b8382SJiri Pirko err_options_register: 1613492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1614fc423ff0SJiri Pirko team_notify_peers_fini(team); 16158ff5105aSJiri Pirko team_queue_override_fini(team); 16168ff5105aSJiri Pirko err_team_queue_override_init: 1617358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1618358b8382SJiri Pirko 1619358b8382SJiri Pirko return err; 16203d249d4cSJiri Pirko } 16213d249d4cSJiri Pirko 16223d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 16233d249d4cSJiri Pirko { 16243d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16253d249d4cSJiri Pirko struct team_port *port; 16263d249d4cSJiri Pirko struct team_port *tmp; 16273d249d4cSJiri Pirko 162861dc3461SJiri Pirko mutex_lock(&team->lock); 16293d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 16303d249d4cSJiri Pirko team_port_del(team, port->dev); 16313d249d4cSJiri Pirko 16323d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 16333d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 1634492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1635fc423ff0SJiri Pirko team_notify_peers_fini(team); 16368ff5105aSJiri Pirko team_queue_override_fini(team); 163761dc3461SJiri Pirko mutex_unlock(&team->lock); 163816cf72bbSXin Long netdev_change_features(dev); 16393d249d4cSJiri Pirko } 16403d249d4cSJiri Pirko 16413d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 16423d249d4cSJiri Pirko { 16433d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16443d249d4cSJiri Pirko 16453d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 16463d249d4cSJiri Pirko } 16473d249d4cSJiri Pirko 16483d249d4cSJiri Pirko static int team_open(struct net_device *dev) 16493d249d4cSJiri Pirko { 16503d249d4cSJiri Pirko return 0; 16513d249d4cSJiri Pirko } 16523d249d4cSJiri Pirko 16533d249d4cSJiri Pirko static int team_close(struct net_device *dev) 16543d249d4cSJiri Pirko { 16553d249d4cSJiri Pirko return 0; 16563d249d4cSJiri Pirko } 16573d249d4cSJiri Pirko 16583d249d4cSJiri Pirko /* 16593d249d4cSJiri Pirko * note: already called with rcu_read_lock 16603d249d4cSJiri Pirko */ 16613d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 16623d249d4cSJiri Pirko { 16633d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16648ff5105aSJiri Pirko bool tx_success; 16653d249d4cSJiri Pirko unsigned int len = skb->len; 16663d249d4cSJiri Pirko 16678ff5105aSJiri Pirko tx_success = team_queue_override_transmit(team, skb); 16688ff5105aSJiri Pirko if (!tx_success) 16693d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 16703d249d4cSJiri Pirko if (tx_success) { 16713d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 16723d249d4cSJiri Pirko 16733d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 16743d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 16753d249d4cSJiri Pirko pcpu_stats->tx_packets++; 16763d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 16773d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 16783d249d4cSJiri Pirko } else { 16793d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 16803d249d4cSJiri Pirko } 16813d249d4cSJiri Pirko 16823d249d4cSJiri Pirko return NETDEV_TX_OK; 16833d249d4cSJiri Pirko } 16843d249d4cSJiri Pirko 1685f663dd9aSJason Wang static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, 168699932d4fSDaniel Borkmann void *accel_priv, select_queue_fallback_t fallback) 16876c85f2bdSJiri Pirko { 16886c85f2bdSJiri Pirko /* 16896c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 16906c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 16916c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 16926c85f2bdSJiri Pirko * way down to the team driver. 16936c85f2bdSJiri Pirko */ 16946c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 16956c85f2bdSJiri Pirko 16966c85f2bdSJiri Pirko /* 16976c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 16986c85f2bdSJiri Pirko */ 16996c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 17006c85f2bdSJiri Pirko 17016c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 17026c85f2bdSJiri Pirko do { 17036c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 17046c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 17056c85f2bdSJiri Pirko } 17066c85f2bdSJiri Pirko return txq; 17076c85f2bdSJiri Pirko } 17086c85f2bdSJiri Pirko 17093d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 17103d249d4cSJiri Pirko { 17113d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17123d249d4cSJiri Pirko struct team_port *port; 17133d249d4cSJiri Pirko int inc; 17143d249d4cSJiri Pirko 17153d249d4cSJiri Pirko rcu_read_lock(); 17163d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 17173d249d4cSJiri Pirko if (change & IFF_PROMISC) { 17183d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 17193d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 17203d249d4cSJiri Pirko } 17213d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 17223d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 17233d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 17243d249d4cSJiri Pirko } 17253d249d4cSJiri Pirko } 17263d249d4cSJiri Pirko rcu_read_unlock(); 17273d249d4cSJiri Pirko } 17283d249d4cSJiri Pirko 17293d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 17303d249d4cSJiri Pirko { 17313d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17323d249d4cSJiri Pirko struct team_port *port; 17333d249d4cSJiri Pirko 17343d249d4cSJiri Pirko rcu_read_lock(); 17353d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 173672b27032SVlad Yasevich dev_uc_sync_multiple(port->dev, dev); 173772b27032SVlad Yasevich dev_mc_sync_multiple(port->dev, dev); 17383d249d4cSJiri Pirko } 17393d249d4cSJiri Pirko rcu_read_unlock(); 17403d249d4cSJiri Pirko } 17413d249d4cSJiri Pirko 17423d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 17433d249d4cSJiri Pirko { 17441d76efe1SJiri Pirko struct sockaddr *addr = p; 17453d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17463d249d4cSJiri Pirko struct team_port *port; 17473d249d4cSJiri Pirko 17481d76efe1SJiri Pirko if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) 17491d76efe1SJiri Pirko return -EADDRNOTAVAIL; 17501d76efe1SJiri Pirko memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 17519215f437SJiri Pirko mutex_lock(&team->lock); 17529215f437SJiri Pirko list_for_each_entry(port, &team->port_list, list) 17531d76efe1SJiri Pirko if (team->ops.port_change_dev_addr) 17541d76efe1SJiri Pirko team->ops.port_change_dev_addr(team, port); 17559215f437SJiri Pirko mutex_unlock(&team->lock); 17563d249d4cSJiri Pirko return 0; 17573d249d4cSJiri Pirko } 17583d249d4cSJiri Pirko 17593d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 17603d249d4cSJiri Pirko { 17613d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17623d249d4cSJiri Pirko struct team_port *port; 17633d249d4cSJiri Pirko int err; 17643d249d4cSJiri Pirko 17653d249d4cSJiri Pirko /* 17663d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 17673d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 17683d249d4cSJiri Pirko */ 176961dc3461SJiri Pirko mutex_lock(&team->lock); 17709d0d68faSJiri Pirko team->port_mtu_change_allowed = true; 17713d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17723d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 17733d249d4cSJiri Pirko if (err) { 17743d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 17753d249d4cSJiri Pirko port->dev->name); 17763d249d4cSJiri Pirko goto unwind; 17773d249d4cSJiri Pirko } 17783d249d4cSJiri Pirko } 17799d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 178061dc3461SJiri Pirko mutex_unlock(&team->lock); 17813d249d4cSJiri Pirko 17823d249d4cSJiri Pirko dev->mtu = new_mtu; 17833d249d4cSJiri Pirko 17843d249d4cSJiri Pirko return 0; 17853d249d4cSJiri Pirko 17863d249d4cSJiri Pirko unwind: 17873d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 17883d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 17899d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 179061dc3461SJiri Pirko mutex_unlock(&team->lock); 17913d249d4cSJiri Pirko 17923d249d4cSJiri Pirko return err; 17933d249d4cSJiri Pirko } 17943d249d4cSJiri Pirko 1795bc1f4470Sstephen hemminger static void 17963d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 17973d249d4cSJiri Pirko { 17983d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17993d249d4cSJiri Pirko struct team_pcpu_stats *p; 18003d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 1801bb63daf9SJarod Wilson u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; 18023d249d4cSJiri Pirko unsigned int start; 18033d249d4cSJiri Pirko int i; 18043d249d4cSJiri Pirko 18053d249d4cSJiri Pirko for_each_possible_cpu(i) { 18063d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 18073d249d4cSJiri Pirko do { 180857a7744eSEric W. Biederman start = u64_stats_fetch_begin_irq(&p->syncp); 18093d249d4cSJiri Pirko rx_packets = p->rx_packets; 18103d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 18113d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 18123d249d4cSJiri Pirko tx_packets = p->tx_packets; 18133d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 181457a7744eSEric W. Biederman } while (u64_stats_fetch_retry_irq(&p->syncp, start)); 18153d249d4cSJiri Pirko 18163d249d4cSJiri Pirko stats->rx_packets += rx_packets; 18173d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 18183d249d4cSJiri Pirko stats->multicast += rx_multicast; 18193d249d4cSJiri Pirko stats->tx_packets += tx_packets; 18203d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 18213d249d4cSJiri Pirko /* 1822bb63daf9SJarod Wilson * rx_dropped, tx_dropped & rx_nohandler are u32, 1823bb63daf9SJarod Wilson * updated without syncp protection. 18243d249d4cSJiri Pirko */ 18253d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 18263d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 1827bb63daf9SJarod Wilson rx_nohandler += p->rx_nohandler; 18283d249d4cSJiri Pirko } 18293d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 18303d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 1831bb63daf9SJarod Wilson stats->rx_nohandler = rx_nohandler; 18323d249d4cSJiri Pirko } 18333d249d4cSJiri Pirko 183480d5c368SPatrick McHardy static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) 18353d249d4cSJiri Pirko { 18363d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18373d249d4cSJiri Pirko struct team_port *port; 183887002b03SJiri Pirko int err; 18393d249d4cSJiri Pirko 184087002b03SJiri Pirko /* 184187002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 184287002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 184387002b03SJiri Pirko */ 184487002b03SJiri Pirko mutex_lock(&team->lock); 184587002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 184680d5c368SPatrick McHardy err = vlan_vid_add(port->dev, proto, vid); 184787002b03SJiri Pirko if (err) 184887002b03SJiri Pirko goto unwind; 18493d249d4cSJiri Pirko } 185087002b03SJiri Pirko mutex_unlock(&team->lock); 18518e586137SJiri Pirko 18528e586137SJiri Pirko return 0; 185387002b03SJiri Pirko 185487002b03SJiri Pirko unwind: 185587002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 185680d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 185787002b03SJiri Pirko mutex_unlock(&team->lock); 185887002b03SJiri Pirko 185987002b03SJiri Pirko return err; 18603d249d4cSJiri Pirko } 18613d249d4cSJiri Pirko 186280d5c368SPatrick McHardy static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) 18633d249d4cSJiri Pirko { 18643d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18653d249d4cSJiri Pirko struct team_port *port; 18663d249d4cSJiri Pirko 186760a6531bSIdo Schimmel mutex_lock(&team->lock); 186860a6531bSIdo Schimmel list_for_each_entry(port, &team->port_list, list) 186980d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 187060a6531bSIdo Schimmel mutex_unlock(&team->lock); 18718e586137SJiri Pirko 18728e586137SJiri Pirko return 0; 18733d249d4cSJiri Pirko } 18743d249d4cSJiri Pirko 1875bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1876bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1877bd2d0837SJiri Pirko { 1878bd2d0837SJiri Pirko } 1879bd2d0837SJiri Pirko 1880bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1881bd2d0837SJiri Pirko { 1882bd2d0837SJiri Pirko struct team_port *port; 1883bd2d0837SJiri Pirko 1884bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1885bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1886bd2d0837SJiri Pirko } 1887bd2d0837SJiri Pirko 1888bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1889bd2d0837SJiri Pirko { 1890bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1891bd2d0837SJiri Pirko 1892bd2d0837SJiri Pirko mutex_lock(&team->lock); 1893bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1894bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1895bd2d0837SJiri Pirko } 1896bd2d0837SJiri Pirko 1897bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 1898a8779ec1SEric W. Biederman struct netpoll_info *npifo) 1899bd2d0837SJiri Pirko { 1900bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1901bd2d0837SJiri Pirko struct team_port *port; 19023324d024SJiri Pirko int err = 0; 1903bd2d0837SJiri Pirko 1904bd2d0837SJiri Pirko mutex_lock(&team->lock); 1905bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 1906a8779ec1SEric W. Biederman err = team_port_enable_netpoll(team, port); 1907bd2d0837SJiri Pirko if (err) { 1908bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1909bd2d0837SJiri Pirko break; 1910bd2d0837SJiri Pirko } 1911bd2d0837SJiri Pirko } 1912bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1913bd2d0837SJiri Pirko return err; 1914bd2d0837SJiri Pirko } 1915bd2d0837SJiri Pirko #endif 1916bd2d0837SJiri Pirko 19173d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 19183d249d4cSJiri Pirko { 19193d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 19203d249d4cSJiri Pirko int err; 19213d249d4cSJiri Pirko 192261dc3461SJiri Pirko mutex_lock(&team->lock); 19233d249d4cSJiri Pirko err = team_port_add(team, port_dev); 192461dc3461SJiri Pirko mutex_unlock(&team->lock); 192516cf72bbSXin Long 192616cf72bbSXin Long if (!err) 192716cf72bbSXin Long netdev_change_features(dev); 192816cf72bbSXin Long 19293d249d4cSJiri Pirko return err; 19303d249d4cSJiri Pirko } 19313d249d4cSJiri Pirko 19323d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 19333d249d4cSJiri Pirko { 19343d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 19353d249d4cSJiri Pirko int err; 19363d249d4cSJiri Pirko 193761dc3461SJiri Pirko mutex_lock(&team->lock); 19383d249d4cSJiri Pirko err = team_port_del(team, port_dev); 193961dc3461SJiri Pirko mutex_unlock(&team->lock); 194016cf72bbSXin Long 194116cf72bbSXin Long if (!err) 194216cf72bbSXin Long netdev_change_features(dev); 194316cf72bbSXin Long 19443d249d4cSJiri Pirko return err; 19453d249d4cSJiri Pirko } 19463d249d4cSJiri Pirko 1947234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1948234a8fd4SJiri Pirko netdev_features_t features) 1949234a8fd4SJiri Pirko { 1950234a8fd4SJiri Pirko struct team_port *port; 1951234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1952234a8fd4SJiri Pirko netdev_features_t mask; 1953234a8fd4SJiri Pirko 19547889cbeeSScott Feldman mask = features; 1955234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1956234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1957234a8fd4SJiri Pirko 1958234a8fd4SJiri Pirko rcu_read_lock(); 1959234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1960234a8fd4SJiri Pirko features = netdev_increment_features(features, 1961234a8fd4SJiri Pirko port->dev->features, 1962234a8fd4SJiri Pirko mask); 1963234a8fd4SJiri Pirko } 1964234a8fd4SJiri Pirko rcu_read_unlock(); 1965247f6d0fSJiri Pirko 1966247f6d0fSJiri Pirko features = netdev_add_tso_features(features, mask); 1967247f6d0fSJiri Pirko 1968234a8fd4SJiri Pirko return features; 1969234a8fd4SJiri Pirko } 1970234a8fd4SJiri Pirko 19714cafe373SFlavio Leitner static int team_change_carrier(struct net_device *dev, bool new_carrier) 19724cafe373SFlavio Leitner { 1973e185483eSFlavio Leitner struct team *team = netdev_priv(dev); 1974e185483eSFlavio Leitner 1975e185483eSFlavio Leitner team->user_carrier_enabled = true; 1976e185483eSFlavio Leitner 19774cafe373SFlavio Leitner if (new_carrier) 19784cafe373SFlavio Leitner netif_carrier_on(dev); 19794cafe373SFlavio Leitner else 19804cafe373SFlavio Leitner netif_carrier_off(dev); 19814cafe373SFlavio Leitner return 0; 19824cafe373SFlavio Leitner } 19834cafe373SFlavio Leitner 19843d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 19853d249d4cSJiri Pirko .ndo_init = team_init, 19863d249d4cSJiri Pirko .ndo_uninit = team_uninit, 19873d249d4cSJiri Pirko .ndo_open = team_open, 19883d249d4cSJiri Pirko .ndo_stop = team_close, 19893d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 19906c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 19913d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 19923d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 19933d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 19943d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 19953d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 19963d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 19973d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 1998bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1999bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 2000bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 2001bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 2002bd2d0837SJiri Pirko #endif 20033d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 20043d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 2005234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 20064cafe373SFlavio Leitner .ndo_change_carrier = team_change_carrier, 2007b9f4cf75SToshiaki Makita .ndo_features_check = passthru_features_check, 20083d249d4cSJiri Pirko }; 20093d249d4cSJiri Pirko 20107f51c587SFlavio Leitner /*********************** 20117f51c587SFlavio Leitner * ethtool interface 20127f51c587SFlavio Leitner ***********************/ 20137f51c587SFlavio Leitner 20147f51c587SFlavio Leitner static void team_ethtool_get_drvinfo(struct net_device *dev, 20157f51c587SFlavio Leitner struct ethtool_drvinfo *drvinfo) 20167f51c587SFlavio Leitner { 20173066af58SFlavio Leitner strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 20183066af58SFlavio Leitner strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); 20197f51c587SFlavio Leitner } 20207f51c587SFlavio Leitner 20217f51c587SFlavio Leitner static const struct ethtool_ops team_ethtool_ops = { 20227f51c587SFlavio Leitner .get_drvinfo = team_ethtool_get_drvinfo, 20237f51c587SFlavio Leitner .get_link = ethtool_op_get_link, 20247f51c587SFlavio Leitner }; 20253d249d4cSJiri Pirko 20263d249d4cSJiri Pirko /*********************** 20273d249d4cSJiri Pirko * rt netlink interface 20283d249d4cSJiri Pirko ***********************/ 20293d249d4cSJiri Pirko 20301d76efe1SJiri Pirko static void team_setup_by_port(struct net_device *dev, 20311d76efe1SJiri Pirko struct net_device *port_dev) 20321d76efe1SJiri Pirko { 20331d76efe1SJiri Pirko dev->header_ops = port_dev->header_ops; 20341d76efe1SJiri Pirko dev->type = port_dev->type; 20351d76efe1SJiri Pirko dev->hard_header_len = port_dev->hard_header_len; 20361d76efe1SJiri Pirko dev->addr_len = port_dev->addr_len; 20371d76efe1SJiri Pirko dev->mtu = port_dev->mtu; 20381d76efe1SJiri Pirko memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); 203993af7357SBjørn Mork eth_hw_addr_inherit(dev, port_dev); 20401d76efe1SJiri Pirko } 20411d76efe1SJiri Pirko 20421d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 20431d76efe1SJiri Pirko struct net_device *port_dev) 20441d76efe1SJiri Pirko { 20451d76efe1SJiri Pirko struct team *team = netdev_priv(dev); 20461d76efe1SJiri Pirko char *portname = port_dev->name; 20471d76efe1SJiri Pirko int err; 20481d76efe1SJiri Pirko 20491d76efe1SJiri Pirko if (dev->type == port_dev->type) 20501d76efe1SJiri Pirko return 0; 20511d76efe1SJiri Pirko if (!list_empty(&team->port_list)) { 20521d76efe1SJiri Pirko netdev_err(dev, "Device %s is of different type\n", portname); 20531d76efe1SJiri Pirko return -EBUSY; 20541d76efe1SJiri Pirko } 20551d76efe1SJiri Pirko err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); 20561d76efe1SJiri Pirko err = notifier_to_errno(err); 20571d76efe1SJiri Pirko if (err) { 20581d76efe1SJiri Pirko netdev_err(dev, "Refused to change device type\n"); 20591d76efe1SJiri Pirko return err; 20601d76efe1SJiri Pirko } 20611d76efe1SJiri Pirko dev_uc_flush(dev); 20621d76efe1SJiri Pirko dev_mc_flush(dev); 20631d76efe1SJiri Pirko team_setup_by_port(dev, port_dev); 20641d76efe1SJiri Pirko call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); 20651d76efe1SJiri Pirko return 0; 20661d76efe1SJiri Pirko } 20671d76efe1SJiri Pirko 20683d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 20693d249d4cSJiri Pirko { 20703d249d4cSJiri Pirko ether_setup(dev); 20713331aa37SJarod Wilson dev->max_mtu = ETH_MAX_MTU; 20723d249d4cSJiri Pirko 20733d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 20747f51c587SFlavio Leitner dev->ethtool_ops = &team_ethtool_ops; 2075cf124db5SDavid S. Miller dev->needs_free_netdev = true; 2076cf124db5SDavid S. Miller dev->priv_destructor = team_destructor; 20773d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 207822e380a6SPhil Sutter dev->priv_flags |= IFF_NO_QUEUE; 2079c981e421SJiri Pirko dev->priv_flags |= IFF_TEAM; 20803d249d4cSJiri Pirko 20813d249d4cSJiri Pirko /* 20823d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 20833d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 20843d249d4cSJiri Pirko * Let this up to underlay drivers. 20853d249d4cSJiri Pirko */ 20865a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 20873d249d4cSJiri Pirko 20883d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 20893d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 209099301ba1SWeilong Chen 209199301ba1SWeilong Chen /* Don't allow team devices to change network namespaces. */ 209299301ba1SWeilong Chen dev->features |= NETIF_F_NETNS_LOCAL; 209399301ba1SWeilong Chen 20943ed71471SJiri Pirko dev->hw_features = TEAM_VLAN_FEATURES | 2095f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_TX | 2096f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_RX | 2097f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_FILTER; 20983d249d4cSJiri Pirko 20993268e5cbSEran Ben Elisha dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; 21003d249d4cSJiri Pirko dev->features |= dev->hw_features; 21013d249d4cSJiri Pirko } 21023d249d4cSJiri Pirko 21033d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 21047a3f4a18SMatthias Schiffer struct nlattr *tb[], struct nlattr *data[], 21057a3f4a18SMatthias Schiffer struct netlink_ext_ack *extack) 21063d249d4cSJiri Pirko { 21073d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 21087ce5d222SDanny Kukawka eth_hw_addr_random(dev); 21093d249d4cSJiri Pirko 2110ff204cceSToshiaki Makita return register_netdevice(dev); 21113d249d4cSJiri Pirko } 21123d249d4cSJiri Pirko 2113a8b8a889SMatthias Schiffer static int team_validate(struct nlattr *tb[], struct nlattr *data[], 2114a8b8a889SMatthias Schiffer struct netlink_ext_ack *extack) 21153d249d4cSJiri Pirko { 21163d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 21173d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 21183d249d4cSJiri Pirko return -EINVAL; 21193d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 21203d249d4cSJiri Pirko return -EADDRNOTAVAIL; 21213d249d4cSJiri Pirko } 21223d249d4cSJiri Pirko return 0; 21233d249d4cSJiri Pirko } 21243d249d4cSJiri Pirko 21256c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 21266c85f2bdSJiri Pirko { 21276c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 21286c85f2bdSJiri Pirko } 21296c85f2bdSJiri Pirko 21306c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 21316c85f2bdSJiri Pirko { 21326c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 21336c85f2bdSJiri Pirko } 21346c85f2bdSJiri Pirko 21353d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 21363d249d4cSJiri Pirko .kind = DRV_NAME, 21373d249d4cSJiri Pirko .priv_size = sizeof(struct team), 21383d249d4cSJiri Pirko .setup = team_setup, 21393d249d4cSJiri Pirko .newlink = team_newlink, 21403d249d4cSJiri Pirko .validate = team_validate, 21416c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 21426c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 21433d249d4cSJiri Pirko }; 21443d249d4cSJiri Pirko 21453d249d4cSJiri Pirko 21463d249d4cSJiri Pirko /*********************************** 21473d249d4cSJiri Pirko * Generic netlink custom interface 21483d249d4cSJiri Pirko ***********************************/ 21493d249d4cSJiri Pirko 2150489111e5SJohannes Berg static struct genl_family team_nl_family; 21513d249d4cSJiri Pirko 21523d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 21533d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 21543d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 21553d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 21563d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 21573d249d4cSJiri Pirko }; 21583d249d4cSJiri Pirko 21593d249d4cSJiri Pirko static const struct nla_policy 21603d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 21613d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 21623d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 21633d249d4cSJiri Pirko .type = NLA_STRING, 21643d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 21653d249d4cSJiri Pirko }, 21663d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 21673d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 21682615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 21693d249d4cSJiri Pirko }; 21703d249d4cSJiri Pirko 21713d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 21723d249d4cSJiri Pirko { 21733d249d4cSJiri Pirko struct sk_buff *msg; 21743d249d4cSJiri Pirko void *hdr; 21753d249d4cSJiri Pirko int err; 21763d249d4cSJiri Pirko 217758050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 21783d249d4cSJiri Pirko if (!msg) 21793d249d4cSJiri Pirko return -ENOMEM; 21803d249d4cSJiri Pirko 218115e47304SEric W. Biederman hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, 21823d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 2183a326e6ddSWei Yongjun if (!hdr) { 2184a326e6ddSWei Yongjun err = -EMSGSIZE; 21853d249d4cSJiri Pirko goto err_msg_put; 21863d249d4cSJiri Pirko } 21873d249d4cSJiri Pirko 21883d249d4cSJiri Pirko genlmsg_end(msg, hdr); 21893d249d4cSJiri Pirko 219015e47304SEric W. Biederman return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); 21913d249d4cSJiri Pirko 21923d249d4cSJiri Pirko err_msg_put: 21933d249d4cSJiri Pirko nlmsg_free(msg); 21943d249d4cSJiri Pirko 21953d249d4cSJiri Pirko return err; 21963d249d4cSJiri Pirko } 21973d249d4cSJiri Pirko 21983d249d4cSJiri Pirko /* 21993d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 22008c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 22013d249d4cSJiri Pirko */ 22023d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 22033d249d4cSJiri Pirko { 22043d249d4cSJiri Pirko struct net *net = genl_info_net(info); 22053d249d4cSJiri Pirko int ifindex; 22063d249d4cSJiri Pirko struct net_device *dev; 22073d249d4cSJiri Pirko struct team *team; 22083d249d4cSJiri Pirko 22093d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 22103d249d4cSJiri Pirko return NULL; 22113d249d4cSJiri Pirko 22123d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 22138c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 22143d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 22158c0713a5SJiri Pirko if (dev) 22168c0713a5SJiri Pirko dev_put(dev); 22173d249d4cSJiri Pirko return NULL; 22183d249d4cSJiri Pirko } 22193d249d4cSJiri Pirko 22203d249d4cSJiri Pirko team = netdev_priv(dev); 222161dc3461SJiri Pirko mutex_lock(&team->lock); 22223d249d4cSJiri Pirko return team; 22233d249d4cSJiri Pirko } 22243d249d4cSJiri Pirko 22253d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 22263d249d4cSJiri Pirko { 222761dc3461SJiri Pirko mutex_unlock(&team->lock); 22288c0713a5SJiri Pirko dev_put(team->dev); 22293d249d4cSJiri Pirko } 22303d249d4cSJiri Pirko 22319b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 223215e47304SEric W. Biederman struct team *team, u32 portid); 22339b00cf2dSJiri Pirko 223415e47304SEric W. Biederman static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) 22359b00cf2dSJiri Pirko { 223615e47304SEric W. Biederman return genlmsg_unicast(dev_net(team->dev), skb, portid); 22379b00cf2dSJiri Pirko } 22389b00cf2dSJiri Pirko 223901048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 224001048d9aSJiri Pirko struct team_option_inst *opt_inst) 22413d249d4cSJiri Pirko { 22423d249d4cSJiri Pirko struct nlattr *option_item; 224380f7c668SJiri Pirko struct team_option *option = opt_inst->option; 22449b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 224580f7c668SJiri Pirko struct team_gsetter_ctx ctx; 224601048d9aSJiri Pirko int err; 22473d249d4cSJiri Pirko 22489b00cf2dSJiri Pirko ctx.info = opt_inst_info; 22499b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 22509b00cf2dSJiri Pirko if (err) 22519b00cf2dSJiri Pirko return err; 22529b00cf2dSJiri Pirko 22533d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 22543d249d4cSJiri Pirko if (!option_item) 22559b00cf2dSJiri Pirko return -EMSGSIZE; 225685d59a87SJiri Pirko 22579b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 22589b00cf2dSJiri Pirko goto nest_cancel; 225985d59a87SJiri Pirko if (opt_inst_info->port && 226080f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 226185d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 22629b00cf2dSJiri Pirko goto nest_cancel; 2263b1303326SJiri Pirko if (opt_inst->option->array_size && 2264b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 226585d59a87SJiri Pirko opt_inst_info->array_index)) 22669b00cf2dSJiri Pirko goto nest_cancel; 226785d59a87SJiri Pirko 22683d249d4cSJiri Pirko switch (option->type) { 22693d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 227086ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 22719b00cf2dSJiri Pirko goto nest_cancel; 227201048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 22739b00cf2dSJiri Pirko goto nest_cancel; 22743d249d4cSJiri Pirko break; 22753d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 227686ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 22779b00cf2dSJiri Pirko goto nest_cancel; 227886ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 227980f7c668SJiri Pirko ctx.data.str_val)) 22809b00cf2dSJiri Pirko goto nest_cancel; 22813d249d4cSJiri Pirko break; 22822615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 22832615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 22849b00cf2dSJiri Pirko goto nest_cancel; 228501048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 228601048d9aSJiri Pirko ctx.data.bin_val.ptr)) 22879b00cf2dSJiri Pirko goto nest_cancel; 22882615598fSJiri Pirko break; 228914f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 229014f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 22919b00cf2dSJiri Pirko goto nest_cancel; 229214f066baSJiri Pirko if (ctx.data.bool_val && 229314f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 22949b00cf2dSJiri Pirko goto nest_cancel; 229514f066baSJiri Pirko break; 229669821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 229769821638SJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) 229869821638SJiri Pirko goto nest_cancel; 229969821638SJiri Pirko if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) 230069821638SJiri Pirko goto nest_cancel; 230169821638SJiri Pirko break; 23023d249d4cSJiri Pirko default: 23033d249d4cSJiri Pirko BUG(); 23043d249d4cSJiri Pirko } 23059b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 23069b00cf2dSJiri Pirko goto nest_cancel; 23079b00cf2dSJiri Pirko if (opt_inst->changed) { 23089b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 23099b00cf2dSJiri Pirko goto nest_cancel; 23109b00cf2dSJiri Pirko opt_inst->changed = false; 23119b00cf2dSJiri Pirko } 23123d249d4cSJiri Pirko nla_nest_end(skb, option_item); 231301048d9aSJiri Pirko return 0; 231401048d9aSJiri Pirko 23159b00cf2dSJiri Pirko nest_cancel: 23169b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 23179b00cf2dSJiri Pirko return -EMSGSIZE; 231801048d9aSJiri Pirko } 231901048d9aSJiri Pirko 23209b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 232115e47304SEric W. Biederman struct team *team, u32 portid, 23229b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 23239b00cf2dSJiri Pirko { 23249b00cf2dSJiri Pirko int err; 23259b00cf2dSJiri Pirko 23269b00cf2dSJiri Pirko if (*pskb) { 232715e47304SEric W. Biederman err = send_func(*pskb, team, portid); 23289b00cf2dSJiri Pirko if (err) 23299b00cf2dSJiri Pirko return err; 23309b00cf2dSJiri Pirko } 233158050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 23329b00cf2dSJiri Pirko if (!*pskb) 23339b00cf2dSJiri Pirko return -ENOMEM; 23349b00cf2dSJiri Pirko return 0; 23359b00cf2dSJiri Pirko } 23369b00cf2dSJiri Pirko 233715e47304SEric W. Biederman static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, 23389b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 233901048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 234001048d9aSJiri Pirko { 234101048d9aSJiri Pirko struct nlattr *option_list; 23429b00cf2dSJiri Pirko struct nlmsghdr *nlh; 234301048d9aSJiri Pirko void *hdr; 234401048d9aSJiri Pirko struct team_option_inst *opt_inst; 234501048d9aSJiri Pirko int err; 23469b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 23479b00cf2dSJiri Pirko bool incomplete; 23489b00cf2dSJiri Pirko int i; 234901048d9aSJiri Pirko 23509b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 23519b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 23529b00cf2dSJiri Pirko 23539b00cf2dSJiri Pirko start_again: 235415e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 23559b00cf2dSJiri Pirko if (err) 23569b00cf2dSJiri Pirko return err; 23579b00cf2dSJiri Pirko 235815e47304SEric W. Biederman hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 235901048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 236072ec0bc6SPan Bian if (!hdr) { 236172ec0bc6SPan Bian nlmsg_free(skb); 2362a326e6ddSWei Yongjun return -EMSGSIZE; 236372ec0bc6SPan Bian } 236401048d9aSJiri Pirko 236501048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 236601048d9aSJiri Pirko goto nla_put_failure; 236701048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 236801048d9aSJiri Pirko if (!option_list) 236901048d9aSJiri Pirko goto nla_put_failure; 237001048d9aSJiri Pirko 23719b00cf2dSJiri Pirko i = 0; 23729b00cf2dSJiri Pirko incomplete = false; 23739b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 237401048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 23759b00cf2dSJiri Pirko if (err) { 23769b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 23779b00cf2dSJiri Pirko if (!i) 237801048d9aSJiri Pirko goto errout; 23799b00cf2dSJiri Pirko incomplete = true; 23809b00cf2dSJiri Pirko break; 23819b00cf2dSJiri Pirko } 23829b00cf2dSJiri Pirko goto errout; 23839b00cf2dSJiri Pirko } 23849b00cf2dSJiri Pirko i++; 23853d249d4cSJiri Pirko } 23863d249d4cSJiri Pirko 23873d249d4cSJiri Pirko nla_nest_end(skb, option_list); 23889b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 23899b00cf2dSJiri Pirko if (incomplete) 23909b00cf2dSJiri Pirko goto start_again; 23919b00cf2dSJiri Pirko 23929b00cf2dSJiri Pirko send_done: 239315e47304SEric W. Biederman nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 23949b00cf2dSJiri Pirko if (!nlh) { 239515e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 23969b00cf2dSJiri Pirko if (err) 23979b00cf2dSJiri Pirko goto errout; 23989b00cf2dSJiri Pirko goto send_done; 23999b00cf2dSJiri Pirko } 24009b00cf2dSJiri Pirko 240115e47304SEric W. Biederman return send_func(skb, team, portid); 24023d249d4cSJiri Pirko 24033d249d4cSJiri Pirko nla_put_failure: 240480f7c668SJiri Pirko err = -EMSGSIZE; 240580f7c668SJiri Pirko errout: 24063d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 24079b00cf2dSJiri Pirko nlmsg_free(skb); 240880f7c668SJiri Pirko return err; 24093d249d4cSJiri Pirko } 24103d249d4cSJiri Pirko 24113d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 24123d249d4cSJiri Pirko { 24133d249d4cSJiri Pirko struct team *team; 24149b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 24153d249d4cSJiri Pirko int err; 24169b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 24173d249d4cSJiri Pirko 24183d249d4cSJiri Pirko team = team_nl_team_get(info); 24193d249d4cSJiri Pirko if (!team) 24203d249d4cSJiri Pirko return -EINVAL; 24213d249d4cSJiri Pirko 24229b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 24239b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 242415e47304SEric W. Biederman err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, 24259b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 24269b00cf2dSJiri Pirko &sel_opt_inst_list); 24273d249d4cSJiri Pirko 24283d249d4cSJiri Pirko team_nl_team_put(team); 24293d249d4cSJiri Pirko 24303d249d4cSJiri Pirko return err; 24313d249d4cSJiri Pirko } 24323d249d4cSJiri Pirko 24332fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 24342fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 24352fcdb2c9SJiri Pirko 24363d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 24373d249d4cSJiri Pirko { 24383d249d4cSJiri Pirko struct team *team; 24393d249d4cSJiri Pirko int err = 0; 24403d249d4cSJiri Pirko int i; 24413d249d4cSJiri Pirko struct nlattr *nl_option; 24422fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 24433d249d4cSJiri Pirko 24447d259505SJiri Pirko rtnl_lock(); 24457d259505SJiri Pirko 24463d249d4cSJiri Pirko team = team_nl_team_get(info); 24477d259505SJiri Pirko if (!team) { 24487d259505SJiri Pirko err = -EINVAL; 24497d259505SJiri Pirko goto rtnl_unlock; 24507d259505SJiri Pirko } 24513d249d4cSJiri Pirko 24523d249d4cSJiri Pirko err = -EINVAL; 24533d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 24543d249d4cSJiri Pirko err = -EINVAL; 24553d249d4cSJiri Pirko goto team_put; 24563d249d4cSJiri Pirko } 24573d249d4cSJiri Pirko 24583d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 245980f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 2460b1303326SJiri Pirko struct nlattr *attr; 246114f066baSJiri Pirko struct nlattr *attr_data; 24623d249d4cSJiri Pirko enum team_option_type opt_type; 246380f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 2464b1303326SJiri Pirko u32 opt_array_index = 0; 2465b1303326SJiri Pirko bool opt_is_array = false; 246680f7c668SJiri Pirko struct team_option_inst *opt_inst; 24673d249d4cSJiri Pirko char *opt_name; 24683d249d4cSJiri Pirko bool opt_found = false; 24693d249d4cSJiri Pirko 24703d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 24713d249d4cSJiri Pirko err = -EINVAL; 24723d249d4cSJiri Pirko goto team_put; 24733d249d4cSJiri Pirko } 247480f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 2475fe52145fSJohannes Berg nl_option, team_nl_option_policy, 2476fe52145fSJohannes Berg info->extack); 24773d249d4cSJiri Pirko if (err) 24783d249d4cSJiri Pirko goto team_put; 247980f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 248014f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 24813d249d4cSJiri Pirko err = -EINVAL; 24823d249d4cSJiri Pirko goto team_put; 24833d249d4cSJiri Pirko } 248480f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 24853d249d4cSJiri Pirko case NLA_U32: 24863d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 24873d249d4cSJiri Pirko break; 24883d249d4cSJiri Pirko case NLA_STRING: 24893d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 24903d249d4cSJiri Pirko break; 24912615598fSJiri Pirko case NLA_BINARY: 24922615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 24932615598fSJiri Pirko break; 249414f066baSJiri Pirko case NLA_FLAG: 249514f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 249614f066baSJiri Pirko break; 249769821638SJiri Pirko case NLA_S32: 249869821638SJiri Pirko opt_type = TEAM_OPTION_TYPE_S32; 249969821638SJiri Pirko break; 25003d249d4cSJiri Pirko default: 25013d249d4cSJiri Pirko goto team_put; 25023d249d4cSJiri Pirko } 25033d249d4cSJiri Pirko 250414f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 250514f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 250614f066baSJiri Pirko err = -EINVAL; 250714f066baSJiri Pirko goto team_put; 250814f066baSJiri Pirko } 250914f066baSJiri Pirko 251080f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 2511b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 2512b1303326SJiri Pirko if (attr) 2513b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 2514b1303326SJiri Pirko 2515b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 2516b1303326SJiri Pirko if (attr) { 2517b1303326SJiri Pirko opt_is_array = true; 2518b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 2519b1303326SJiri Pirko } 25203d249d4cSJiri Pirko 252180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 252280f7c668SJiri Pirko struct team_option *option = opt_inst->option; 252380f7c668SJiri Pirko struct team_gsetter_ctx ctx; 252485d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 252580f7c668SJiri Pirko int tmp_ifindex; 252680f7c668SJiri Pirko 252785d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 252885d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 252985d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 25303d249d4cSJiri Pirko if (option->type != opt_type || 253180f7c668SJiri Pirko strcmp(option->name, opt_name) || 2532b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2533b1303326SJiri Pirko (option->array_size && !opt_is_array) || 253485d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 25353d249d4cSJiri Pirko continue; 25363d249d4cSJiri Pirko opt_found = true; 253785d59a87SJiri Pirko ctx.info = opt_inst_info; 25383d249d4cSJiri Pirko switch (opt_type) { 25393d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 254014f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 25413d249d4cSJiri Pirko break; 25423d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 254314f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 25442615598fSJiri Pirko err = -EINVAL; 25452615598fSJiri Pirko goto team_put; 25462615598fSJiri Pirko } 254714f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 25483d249d4cSJiri Pirko break; 25492615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 255014f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 255114f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 255214f066baSJiri Pirko break; 255314f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 255414f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 25552615598fSJiri Pirko break; 255669821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 255769821638SJiri Pirko ctx.data.s32_val = nla_get_s32(attr_data); 255869821638SJiri Pirko break; 25593d249d4cSJiri Pirko default: 25603d249d4cSJiri Pirko BUG(); 25613d249d4cSJiri Pirko } 256280f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 25633d249d4cSJiri Pirko if (err) 25643d249d4cSJiri Pirko goto team_put; 25652fcdb2c9SJiri Pirko opt_inst->changed = true; 25662fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 25673d249d4cSJiri Pirko } 25683d249d4cSJiri Pirko if (!opt_found) { 25693d249d4cSJiri Pirko err = -ENOENT; 25703d249d4cSJiri Pirko goto team_put; 25713d249d4cSJiri Pirko } 25723d249d4cSJiri Pirko } 25733d249d4cSJiri Pirko 25742fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 25752fcdb2c9SJiri Pirko 25763d249d4cSJiri Pirko team_put: 25773d249d4cSJiri Pirko team_nl_team_put(team); 25787d259505SJiri Pirko rtnl_unlock: 25797d259505SJiri Pirko rtnl_unlock(); 25803d249d4cSJiri Pirko return err; 25813d249d4cSJiri Pirko } 25823d249d4cSJiri Pirko 2583d90f889eSJiri Pirko static int team_nl_fill_one_port_get(struct sk_buff *skb, 2584d90f889eSJiri Pirko struct team_port *port) 2585d90f889eSJiri Pirko { 2586d90f889eSJiri Pirko struct nlattr *port_item; 2587d90f889eSJiri Pirko 2588d90f889eSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 2589d90f889eSJiri Pirko if (!port_item) 2590d90f889eSJiri Pirko goto nest_cancel; 2591d90f889eSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 2592d90f889eSJiri Pirko goto nest_cancel; 2593d90f889eSJiri Pirko if (port->changed) { 2594d90f889eSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 2595d90f889eSJiri Pirko goto nest_cancel; 2596d90f889eSJiri Pirko port->changed = false; 2597d90f889eSJiri Pirko } 2598d90f889eSJiri Pirko if ((port->removed && 2599d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 2600d90f889eSJiri Pirko (port->state.linkup && 2601d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 2602d90f889eSJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 2603d90f889eSJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 2604d90f889eSJiri Pirko goto nest_cancel; 2605d90f889eSJiri Pirko nla_nest_end(skb, port_item); 2606d90f889eSJiri Pirko return 0; 2607d90f889eSJiri Pirko 2608d90f889eSJiri Pirko nest_cancel: 2609d90f889eSJiri Pirko nla_nest_cancel(skb, port_item); 2610d90f889eSJiri Pirko return -EMSGSIZE; 2611d90f889eSJiri Pirko } 2612d90f889eSJiri Pirko 2613d90f889eSJiri Pirko static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, 2614d90f889eSJiri Pirko int flags, team_nl_send_func_t *send_func, 2615d90f889eSJiri Pirko struct team_port *one_port) 26163d249d4cSJiri Pirko { 26173d249d4cSJiri Pirko struct nlattr *port_list; 2618d90f889eSJiri Pirko struct nlmsghdr *nlh; 26193d249d4cSJiri Pirko void *hdr; 26203d249d4cSJiri Pirko struct team_port *port; 2621d90f889eSJiri Pirko int err; 2622d90f889eSJiri Pirko struct sk_buff *skb = NULL; 2623d90f889eSJiri Pirko bool incomplete; 2624d90f889eSJiri Pirko int i; 26253d249d4cSJiri Pirko 26263f3e7ce4SJiri Pirko port = list_first_entry_or_null(&team->port_list, 26273f3e7ce4SJiri Pirko struct team_port, list); 2628d90f889eSJiri Pirko 2629d90f889eSJiri Pirko start_again: 2630d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2631d90f889eSJiri Pirko if (err) 2632d90f889eSJiri Pirko return err; 2633d90f889eSJiri Pirko 2634d90f889eSJiri Pirko hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 26353d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 263672ec0bc6SPan Bian if (!hdr) { 263772ec0bc6SPan Bian nlmsg_free(skb); 2638a326e6ddSWei Yongjun return -EMSGSIZE; 263972ec0bc6SPan Bian } 26403d249d4cSJiri Pirko 264186ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 264286ebb02dSDavid S. Miller goto nla_put_failure; 26433d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 26443d249d4cSJiri Pirko if (!port_list) 26453221c646SJiri Pirko goto nla_put_failure; 26463d249d4cSJiri Pirko 2647d90f889eSJiri Pirko i = 0; 2648d90f889eSJiri Pirko incomplete = false; 26493d249d4cSJiri Pirko 2650d90f889eSJiri Pirko /* If one port is selected, called wants to send port list containing 2651d90f889eSJiri Pirko * only this port. Otherwise go through all listed ports and send all 2652d90f889eSJiri Pirko */ 2653d90f889eSJiri Pirko if (one_port) { 2654d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, one_port); 2655d90f889eSJiri Pirko if (err) 2656d90f889eSJiri Pirko goto errout; 26573f3e7ce4SJiri Pirko } else if (port) { 26583f3e7ce4SJiri Pirko list_for_each_entry_from(port, &team->port_list, list) { 2659d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, port); 2660d90f889eSJiri Pirko if (err) { 2661d90f889eSJiri Pirko if (err == -EMSGSIZE) { 2662d90f889eSJiri Pirko if (!i) 2663d90f889eSJiri Pirko goto errout; 2664d90f889eSJiri Pirko incomplete = true; 2665d90f889eSJiri Pirko break; 2666b82b9183SJiri Pirko } 2667d90f889eSJiri Pirko goto errout; 2668d90f889eSJiri Pirko } 2669d90f889eSJiri Pirko i++; 2670d90f889eSJiri Pirko } 26713d249d4cSJiri Pirko } 26723d249d4cSJiri Pirko 26733d249d4cSJiri Pirko nla_nest_end(skb, port_list); 2674d90f889eSJiri Pirko genlmsg_end(skb, hdr); 2675d90f889eSJiri Pirko if (incomplete) 2676d90f889eSJiri Pirko goto start_again; 26773d249d4cSJiri Pirko 2678d90f889eSJiri Pirko send_done: 2679d90f889eSJiri Pirko nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 2680d90f889eSJiri Pirko if (!nlh) { 2681d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2682d90f889eSJiri Pirko if (err) 2683d90f889eSJiri Pirko goto errout; 2684d90f889eSJiri Pirko goto send_done; 26853d249d4cSJiri Pirko } 26863d249d4cSJiri Pirko 2687d90f889eSJiri Pirko return send_func(skb, team, portid); 2688d90f889eSJiri Pirko 2689d90f889eSJiri Pirko nla_put_failure: 2690d90f889eSJiri Pirko err = -EMSGSIZE; 2691d90f889eSJiri Pirko errout: 2692d90f889eSJiri Pirko genlmsg_cancel(skb, hdr); 2693d90f889eSJiri Pirko nlmsg_free(skb); 2694d90f889eSJiri Pirko return err; 26953d249d4cSJiri Pirko } 26963d249d4cSJiri Pirko 26973d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 26983d249d4cSJiri Pirko struct genl_info *info) 26993d249d4cSJiri Pirko { 27003d249d4cSJiri Pirko struct team *team; 27013d249d4cSJiri Pirko int err; 27023d249d4cSJiri Pirko 27033d249d4cSJiri Pirko team = team_nl_team_get(info); 27043d249d4cSJiri Pirko if (!team) 27053d249d4cSJiri Pirko return -EINVAL; 27063d249d4cSJiri Pirko 2707d90f889eSJiri Pirko err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, 2708d90f889eSJiri Pirko NLM_F_ACK, team_nl_send_unicast, NULL); 27093d249d4cSJiri Pirko 27103d249d4cSJiri Pirko team_nl_team_put(team); 27113d249d4cSJiri Pirko 27123d249d4cSJiri Pirko return err; 27133d249d4cSJiri Pirko } 27143d249d4cSJiri Pirko 27154534de83SJohannes Berg static const struct genl_ops team_nl_ops[] = { 27163d249d4cSJiri Pirko { 27173d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 27183d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 27193d249d4cSJiri Pirko .policy = team_nl_policy, 27203d249d4cSJiri Pirko }, 27213d249d4cSJiri Pirko { 27223d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 27233d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 27243d249d4cSJiri Pirko .policy = team_nl_policy, 27253d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27263d249d4cSJiri Pirko }, 27273d249d4cSJiri Pirko { 27283d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 27293d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 27303d249d4cSJiri Pirko .policy = team_nl_policy, 27313d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27323d249d4cSJiri Pirko }, 27333d249d4cSJiri Pirko { 27343d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 27353d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 27363d249d4cSJiri Pirko .policy = team_nl_policy, 27373d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27383d249d4cSJiri Pirko }, 27393d249d4cSJiri Pirko }; 27403d249d4cSJiri Pirko 27412a94fe48SJohannes Berg static const struct genl_multicast_group team_nl_mcgrps[] = { 27422a94fe48SJohannes Berg { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, 27433d249d4cSJiri Pirko }; 27443d249d4cSJiri Pirko 274556989f6dSJohannes Berg static struct genl_family team_nl_family __ro_after_init = { 2746489111e5SJohannes Berg .name = TEAM_GENL_NAME, 2747489111e5SJohannes Berg .version = TEAM_GENL_VERSION, 2748489111e5SJohannes Berg .maxattr = TEAM_ATTR_MAX, 2749489111e5SJohannes Berg .netnsok = true, 2750489111e5SJohannes Berg .module = THIS_MODULE, 2751489111e5SJohannes Berg .ops = team_nl_ops, 2752489111e5SJohannes Berg .n_ops = ARRAY_SIZE(team_nl_ops), 2753489111e5SJohannes Berg .mcgrps = team_nl_mcgrps, 2754489111e5SJohannes Berg .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps), 2755489111e5SJohannes Berg }; 2756489111e5SJohannes Berg 27579b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 275815e47304SEric W. Biederman struct team *team, u32 portid) 27599b00cf2dSJiri Pirko { 276068eb5503SJohannes Berg return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), 27612a94fe48SJohannes Berg skb, 0, 0, GFP_KERNEL); 27629b00cf2dSJiri Pirko } 27639b00cf2dSJiri Pirko 276401048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 276501048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 27663d249d4cSJiri Pirko { 27679b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 27689b00cf2dSJiri Pirko sel_opt_inst_list); 27693d249d4cSJiri Pirko } 27703d249d4cSJiri Pirko 2771d90f889eSJiri Pirko static int team_nl_send_event_port_get(struct team *team, 2772d90f889eSJiri Pirko struct team_port *port) 27733d249d4cSJiri Pirko { 2774d90f889eSJiri Pirko return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, 2775d90f889eSJiri Pirko port); 27763d249d4cSJiri Pirko } 27773d249d4cSJiri Pirko 277856989f6dSJohannes Berg static int __init team_nl_init(void) 27793d249d4cSJiri Pirko { 2780489111e5SJohannes Berg return genl_register_family(&team_nl_family); 27813d249d4cSJiri Pirko } 27823d249d4cSJiri Pirko 27833d249d4cSJiri Pirko static void team_nl_fini(void) 27843d249d4cSJiri Pirko { 27853d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 27863d249d4cSJiri Pirko } 27873d249d4cSJiri Pirko 27883d249d4cSJiri Pirko 27893d249d4cSJiri Pirko /****************** 27903d249d4cSJiri Pirko * Change checkers 27913d249d4cSJiri Pirko ******************/ 27923d249d4cSJiri Pirko 2793b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 27943d249d4cSJiri Pirko { 27953d249d4cSJiri Pirko int err; 279601048d9aSJiri Pirko struct team_option_inst *opt_inst; 279701048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 27983d249d4cSJiri Pirko 279901048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 280001048d9aSJiri Pirko if (opt_inst->changed) 280101048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 280201048d9aSJiri Pirko } 280301048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 28040c7517e9SJiri Pirko if (err && err != -ESRCH) 28059b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 28069b00cf2dSJiri Pirko err); 28073d249d4cSJiri Pirko } 28083d249d4cSJiri Pirko 28093d249d4cSJiri Pirko /* rtnl lock is held */ 281010f3f51dSJiri Pirko 281110f3f51dSJiri Pirko static void __team_port_change_send(struct team_port *port, bool linkup) 28123d249d4cSJiri Pirko { 28133d249d4cSJiri Pirko int err; 28143d249d4cSJiri Pirko 2815b82b9183SJiri Pirko port->changed = true; 281671472ec1SJiri Pirko port->state.linkup = linkup; 281771472ec1SJiri Pirko team_refresh_port_linkup(port); 28183d249d4cSJiri Pirko if (linkup) { 28190ab6b544SDavid Decotigny struct ethtool_link_ksettings ecmd; 28203d249d4cSJiri Pirko 28210ab6b544SDavid Decotigny err = __ethtool_get_link_ksettings(port->dev, &ecmd); 28223d249d4cSJiri Pirko if (!err) { 28230ab6b544SDavid Decotigny port->state.speed = ecmd.base.speed; 28240ab6b544SDavid Decotigny port->state.duplex = ecmd.base.duplex; 28253d249d4cSJiri Pirko goto send_event; 28263d249d4cSJiri Pirko } 28273d249d4cSJiri Pirko } 282871472ec1SJiri Pirko port->state.speed = 0; 282971472ec1SJiri Pirko port->state.duplex = 0; 28303d249d4cSJiri Pirko 28313d249d4cSJiri Pirko send_event: 2832d90f889eSJiri Pirko err = team_nl_send_event_port_get(port->team, port); 28330c7517e9SJiri Pirko if (err && err != -ESRCH) 28340c7517e9SJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", 28350c7517e9SJiri Pirko port->dev->name, err); 28363d249d4cSJiri Pirko 28373d249d4cSJiri Pirko } 28383d249d4cSJiri Pirko 283906a7fc42SFlavio Leitner static void __team_carrier_check(struct team *team) 284006a7fc42SFlavio Leitner { 284106a7fc42SFlavio Leitner struct team_port *port; 284206a7fc42SFlavio Leitner bool team_linkup; 284306a7fc42SFlavio Leitner 2844e185483eSFlavio Leitner if (team->user_carrier_enabled) 2845e185483eSFlavio Leitner return; 2846e185483eSFlavio Leitner 284706a7fc42SFlavio Leitner team_linkup = false; 284806a7fc42SFlavio Leitner list_for_each_entry(port, &team->port_list, list) { 284906a7fc42SFlavio Leitner if (port->linkup) { 285006a7fc42SFlavio Leitner team_linkup = true; 285106a7fc42SFlavio Leitner break; 285206a7fc42SFlavio Leitner } 285306a7fc42SFlavio Leitner } 285406a7fc42SFlavio Leitner 285506a7fc42SFlavio Leitner if (team_linkup) 285606a7fc42SFlavio Leitner netif_carrier_on(team->dev); 285706a7fc42SFlavio Leitner else 285806a7fc42SFlavio Leitner netif_carrier_off(team->dev); 285906a7fc42SFlavio Leitner } 286006a7fc42SFlavio Leitner 286110f3f51dSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 286210f3f51dSJiri Pirko { 286310f3f51dSJiri Pirko if (port->state.linkup != linkup) 286410f3f51dSJiri Pirko __team_port_change_send(port, linkup); 286506a7fc42SFlavio Leitner __team_carrier_check(port->team); 286610f3f51dSJiri Pirko } 286710f3f51dSJiri Pirko 286810f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup) 286910f3f51dSJiri Pirko { 287010f3f51dSJiri Pirko __team_port_change_send(port, linkup); 287106a7fc42SFlavio Leitner __team_carrier_check(port->team); 287210f3f51dSJiri Pirko } 287310f3f51dSJiri Pirko 287410f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port) 287510f3f51dSJiri Pirko { 287610f3f51dSJiri Pirko port->removed = true; 287710f3f51dSJiri Pirko __team_port_change_send(port, false); 287806a7fc42SFlavio Leitner __team_carrier_check(port->team); 287910f3f51dSJiri Pirko } 288010f3f51dSJiri Pirko 28813d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 28823d249d4cSJiri Pirko { 28833d249d4cSJiri Pirko struct team *team = port->team; 28843d249d4cSJiri Pirko 288561dc3461SJiri Pirko mutex_lock(&team->lock); 28863d249d4cSJiri Pirko __team_port_change_check(port, linkup); 288761dc3461SJiri Pirko mutex_unlock(&team->lock); 28883d249d4cSJiri Pirko } 28893d249d4cSJiri Pirko 28900f1aad2bSJiri Pirko 28913d249d4cSJiri Pirko /************************************ 28923d249d4cSJiri Pirko * Net device notifier event handler 28933d249d4cSJiri Pirko ************************************/ 28943d249d4cSJiri Pirko 28953d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 28963d249d4cSJiri Pirko unsigned long event, void *ptr) 28973d249d4cSJiri Pirko { 2898351638e7SJiri Pirko struct net_device *dev = netdev_notifier_info_to_dev(ptr); 28993d249d4cSJiri Pirko struct team_port *port; 29003d249d4cSJiri Pirko 29013d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 29023d249d4cSJiri Pirko if (!port) 29033d249d4cSJiri Pirko return NOTIFY_DONE; 29043d249d4cSJiri Pirko 29053d249d4cSJiri Pirko switch (event) { 29063d249d4cSJiri Pirko case NETDEV_UP: 29073d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 29083d249d4cSJiri Pirko team_port_change_check(port, true); 2909ed2da03cSJiri Pirko break; 29103d249d4cSJiri Pirko case NETDEV_DOWN: 29113d249d4cSJiri Pirko team_port_change_check(port, false); 2912ed2da03cSJiri Pirko break; 29133d249d4cSJiri Pirko case NETDEV_CHANGE: 29143d249d4cSJiri Pirko if (netif_running(port->dev)) 29153d249d4cSJiri Pirko team_port_change_check(port, 29163d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 29173d249d4cSJiri Pirko break; 29183d249d4cSJiri Pirko case NETDEV_UNREGISTER: 29193d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 29203d249d4cSJiri Pirko break; 29213d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 29223d249d4cSJiri Pirko team_compute_features(port->team); 29233d249d4cSJiri Pirko break; 2924b01f236cSVeaceslav Falico case NETDEV_PRECHANGEMTU: 29253d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 29269d0d68faSJiri Pirko if (!port->team->port_mtu_change_allowed) 29273d249d4cSJiri Pirko return NOTIFY_BAD; 29289d0d68faSJiri Pirko break; 29293d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 29303d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 29313d249d4cSJiri Pirko return NOTIFY_BAD; 29324aa5dee4SJiri Pirko case NETDEV_RESEND_IGMP: 29334aa5dee4SJiri Pirko /* Propagate to master device */ 29344aa5dee4SJiri Pirko call_netdevice_notifiers(event, port->team->dev); 29354aa5dee4SJiri Pirko break; 29363d249d4cSJiri Pirko } 29373d249d4cSJiri Pirko return NOTIFY_DONE; 29383d249d4cSJiri Pirko } 29393d249d4cSJiri Pirko 29403d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 29413d249d4cSJiri Pirko .notifier_call = team_device_event, 29423d249d4cSJiri Pirko }; 29433d249d4cSJiri Pirko 29443d249d4cSJiri Pirko 29453d249d4cSJiri Pirko /*********************** 29463d249d4cSJiri Pirko * Module init and exit 29473d249d4cSJiri Pirko ***********************/ 29483d249d4cSJiri Pirko 29493d249d4cSJiri Pirko static int __init team_module_init(void) 29503d249d4cSJiri Pirko { 29513d249d4cSJiri Pirko int err; 29523d249d4cSJiri Pirko 29533d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 29543d249d4cSJiri Pirko 29553d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 29563d249d4cSJiri Pirko if (err) 29573d249d4cSJiri Pirko goto err_rtnl_reg; 29583d249d4cSJiri Pirko 29593d249d4cSJiri Pirko err = team_nl_init(); 29603d249d4cSJiri Pirko if (err) 29613d249d4cSJiri Pirko goto err_nl_init; 29623d249d4cSJiri Pirko 29633d249d4cSJiri Pirko return 0; 29643d249d4cSJiri Pirko 29653d249d4cSJiri Pirko err_nl_init: 29663d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 29673d249d4cSJiri Pirko 29683d249d4cSJiri Pirko err_rtnl_reg: 29693d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 29703d249d4cSJiri Pirko 29713d249d4cSJiri Pirko return err; 29723d249d4cSJiri Pirko } 29733d249d4cSJiri Pirko 29743d249d4cSJiri Pirko static void __exit team_module_exit(void) 29753d249d4cSJiri Pirko { 29763d249d4cSJiri Pirko team_nl_fini(); 29773d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 29783d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 29793d249d4cSJiri Pirko } 29803d249d4cSJiri Pirko 29813d249d4cSJiri Pirko module_init(team_module_init); 29823d249d4cSJiri Pirko module_exit(team_module_exit); 29833d249d4cSJiri Pirko 29843d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 29853d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 29863d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 29873d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2988