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 2644fb0534fSPaolo Abeni static bool __team_option_inst_tmp_find(const struct list_head *opts, 2654fb0534fSPaolo Abeni const struct team_option_inst *needle) 2664fb0534fSPaolo Abeni { 2674fb0534fSPaolo Abeni struct team_option_inst *opt_inst; 2684fb0534fSPaolo Abeni 2694fb0534fSPaolo Abeni list_for_each_entry(opt_inst, opts, tmp_list) 2704fb0534fSPaolo Abeni if (opt_inst == needle) 2714fb0534fSPaolo Abeni return true; 2724fb0534fSPaolo Abeni return false; 2734fb0534fSPaolo Abeni } 2744fb0534fSPaolo Abeni 27580f7c668SJiri Pirko static int __team_options_register(struct team *team, 276358b8382SJiri Pirko const struct team_option *option, 2773d249d4cSJiri Pirko size_t option_count) 2783d249d4cSJiri Pirko { 2793d249d4cSJiri Pirko int i; 2802bba19ffSJiri Pirko struct team_option **dst_opts; 281358b8382SJiri Pirko int err; 2823d249d4cSJiri Pirko 2832bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2842bba19ffSJiri Pirko GFP_KERNEL); 2852bba19ffSJiri Pirko if (!dst_opts) 2862bba19ffSJiri Pirko return -ENOMEM; 287358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 288358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 289358b8382SJiri Pirko err = -EEXIST; 29080f7c668SJiri Pirko goto alloc_rollback; 2913d249d4cSJiri Pirko } 292f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 293f8a15af0SJiri Pirko if (!dst_opts[i]) { 294358b8382SJiri Pirko err = -ENOMEM; 29580f7c668SJiri Pirko goto alloc_rollback; 296358b8382SJiri Pirko } 297358b8382SJiri Pirko } 298358b8382SJiri Pirko 299b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 30080f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 30180f7c668SJiri Pirko if (err) 30280f7c668SJiri Pirko goto inst_rollback; 303358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 304b82b9183SJiri Pirko } 305358b8382SJiri Pirko 3062bba19ffSJiri Pirko kfree(dst_opts); 307358b8382SJiri Pirko return 0; 308358b8382SJiri Pirko 30980f7c668SJiri Pirko inst_rollback: 31080f7c668SJiri Pirko for (i--; i >= 0; i--) 31180f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 31280f7c668SJiri Pirko 31380f7c668SJiri Pirko i = option_count - 1; 31480f7c668SJiri Pirko alloc_rollback: 31580f7c668SJiri Pirko for (i--; i >= 0; i--) 316358b8382SJiri Pirko kfree(dst_opts[i]); 317358b8382SJiri Pirko 3182bba19ffSJiri Pirko kfree(dst_opts); 319358b8382SJiri Pirko return err; 320358b8382SJiri Pirko } 321358b8382SJiri Pirko 322b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 323b82b9183SJiri Pirko const struct team_option *option, 324b82b9183SJiri Pirko size_t option_count) 325b82b9183SJiri Pirko { 326b82b9183SJiri Pirko int i; 3273d249d4cSJiri Pirko 328b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 329b82b9183SJiri Pirko struct team_option *del_opt; 330b82b9183SJiri Pirko 331b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 33280f7c668SJiri Pirko if (del_opt) 33380f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 334b82b9183SJiri Pirko } 335b82b9183SJiri Pirko } 3363d249d4cSJiri Pirko 3373d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 338358b8382SJiri Pirko const struct team_option *option, 3393d249d4cSJiri Pirko size_t option_count) 3403d249d4cSJiri Pirko { 3413d249d4cSJiri Pirko int i; 3423d249d4cSJiri Pirko 343358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 344358b8382SJiri Pirko struct team_option *del_opt; 345358b8382SJiri Pirko 346358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 347358b8382SJiri Pirko if (del_opt) { 34880f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 349358b8382SJiri Pirko list_del(&del_opt->list); 350358b8382SJiri Pirko kfree(del_opt); 351358b8382SJiri Pirko } 352358b8382SJiri Pirko } 3533d249d4cSJiri Pirko } 3543d249d4cSJiri Pirko 355b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 356b82b9183SJiri Pirko 357b82b9183SJiri Pirko int team_options_register(struct team *team, 358b82b9183SJiri Pirko const struct team_option *option, 359b82b9183SJiri Pirko size_t option_count) 360b82b9183SJiri Pirko { 361b82b9183SJiri Pirko int err; 362b82b9183SJiri Pirko 363b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 364b82b9183SJiri Pirko if (err) 365b82b9183SJiri Pirko return err; 366b82b9183SJiri Pirko __team_options_change_check(team); 367b82b9183SJiri Pirko return 0; 368b82b9183SJiri Pirko } 369b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 370b82b9183SJiri Pirko 371358b8382SJiri Pirko void team_options_unregister(struct team *team, 372358b8382SJiri Pirko const struct team_option *option, 3733d249d4cSJiri Pirko size_t option_count) 3743d249d4cSJiri Pirko { 375b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 376b82b9183SJiri Pirko __team_options_change_check(team); 3773d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3783d249d4cSJiri Pirko } 3793d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3803d249d4cSJiri Pirko 38180f7c668SJiri Pirko static int team_option_get(struct team *team, 38280f7c668SJiri Pirko struct team_option_inst *opt_inst, 38380f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 38480f7c668SJiri Pirko { 385f82b959dSJiri Pirko if (!opt_inst->option->getter) 386f82b959dSJiri Pirko return -EOPNOTSUPP; 38780f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 38880f7c668SJiri Pirko } 38980f7c668SJiri Pirko 39080f7c668SJiri Pirko static int team_option_set(struct team *team, 39180f7c668SJiri Pirko struct team_option_inst *opt_inst, 39280f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 39380f7c668SJiri Pirko { 394f82b959dSJiri Pirko if (!opt_inst->option->setter) 395f82b959dSJiri Pirko return -EOPNOTSUPP; 3962fcdb2c9SJiri Pirko return opt_inst->option->setter(team, ctx); 3973d249d4cSJiri Pirko } 3983d249d4cSJiri Pirko 3990f1aad2bSJiri Pirko void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) 4000f1aad2bSJiri Pirko { 4010f1aad2bSJiri Pirko struct team_option_inst *opt_inst; 4020f1aad2bSJiri Pirko 4030f1aad2bSJiri Pirko opt_inst = container_of(opt_inst_info, struct team_option_inst, info); 4040f1aad2bSJiri Pirko opt_inst->changed = true; 4050f1aad2bSJiri Pirko } 4060f1aad2bSJiri Pirko EXPORT_SYMBOL(team_option_inst_set_change); 4070f1aad2bSJiri Pirko 4080f1aad2bSJiri Pirko void team_options_change_check(struct team *team) 4090f1aad2bSJiri Pirko { 4100f1aad2bSJiri Pirko __team_options_change_check(team); 4110f1aad2bSJiri Pirko } 4120f1aad2bSJiri Pirko EXPORT_SYMBOL(team_options_change_check); 4130f1aad2bSJiri Pirko 4140f1aad2bSJiri Pirko 4153d249d4cSJiri Pirko /**************** 4163d249d4cSJiri Pirko * Mode handling 4173d249d4cSJiri Pirko ****************/ 4183d249d4cSJiri Pirko 4193d249d4cSJiri Pirko static LIST_HEAD(mode_list); 4203d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 4213d249d4cSJiri Pirko 4220402788aSJiri Pirko struct team_mode_item { 4230402788aSJiri Pirko struct list_head list; 4240402788aSJiri Pirko const struct team_mode *mode; 4250402788aSJiri Pirko }; 4263d249d4cSJiri Pirko 4270402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 4280402788aSJiri Pirko { 4290402788aSJiri Pirko struct team_mode_item *mitem; 4300402788aSJiri Pirko 4310402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 4320402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 4330402788aSJiri Pirko return mitem; 4343d249d4cSJiri Pirko } 4353d249d4cSJiri Pirko return NULL; 4363d249d4cSJiri Pirko } 4373d249d4cSJiri Pirko 4383d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 4393d249d4cSJiri Pirko { 4403d249d4cSJiri Pirko while (*name != '\0') { 4413d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 4423d249d4cSJiri Pirko return false; 4433d249d4cSJiri Pirko name++; 4443d249d4cSJiri Pirko } 4453d249d4cSJiri Pirko return true; 4463d249d4cSJiri Pirko } 4473d249d4cSJiri Pirko 4480402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4493d249d4cSJiri Pirko { 4503d249d4cSJiri Pirko int err = 0; 4510402788aSJiri Pirko struct team_mode_item *mitem; 4523d249d4cSJiri Pirko 4533d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4543d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4553d249d4cSJiri Pirko return -EINVAL; 4560402788aSJiri Pirko 4570402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4580402788aSJiri Pirko if (!mitem) 4590402788aSJiri Pirko return -ENOMEM; 4600402788aSJiri Pirko 4613d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4623d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4633d249d4cSJiri Pirko err = -EEXIST; 4640402788aSJiri Pirko kfree(mitem); 4653d249d4cSJiri Pirko goto unlock; 4663d249d4cSJiri Pirko } 4670402788aSJiri Pirko mitem->mode = mode; 4680402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4693d249d4cSJiri Pirko unlock: 4703d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4713d249d4cSJiri Pirko return err; 4723d249d4cSJiri Pirko } 4733d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4743d249d4cSJiri Pirko 4750402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4763d249d4cSJiri Pirko { 4770402788aSJiri Pirko struct team_mode_item *mitem; 4780402788aSJiri Pirko 4793d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4800402788aSJiri Pirko mitem = __find_mode(mode->kind); 4810402788aSJiri Pirko if (mitem) { 4820402788aSJiri Pirko list_del_init(&mitem->list); 4830402788aSJiri Pirko kfree(mitem); 4840402788aSJiri Pirko } 4853d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4863d249d4cSJiri Pirko } 4873d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4883d249d4cSJiri Pirko 4890402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4903d249d4cSJiri Pirko { 4910402788aSJiri Pirko struct team_mode_item *mitem; 4920402788aSJiri Pirko const struct team_mode *mode = NULL; 4933d249d4cSJiri Pirko 4943d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4950402788aSJiri Pirko mitem = __find_mode(kind); 4960402788aSJiri Pirko if (!mitem) { 4973d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4983d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4993d249d4cSJiri Pirko spin_lock(&mode_list_lock); 5000402788aSJiri Pirko mitem = __find_mode(kind); 5013d249d4cSJiri Pirko } 5020402788aSJiri Pirko if (mitem) { 5030402788aSJiri Pirko mode = mitem->mode; 5043d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 5053d249d4cSJiri Pirko mode = NULL; 5060402788aSJiri Pirko } 5073d249d4cSJiri Pirko 5083d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 5093d249d4cSJiri Pirko return mode; 5103d249d4cSJiri Pirko } 5113d249d4cSJiri Pirko 5123d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 5133d249d4cSJiri Pirko { 5143d249d4cSJiri Pirko module_put(mode->owner); 5153d249d4cSJiri Pirko } 5163d249d4cSJiri Pirko 5173d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 5183d249d4cSJiri Pirko { 5193d249d4cSJiri Pirko dev_kfree_skb_any(skb); 5203d249d4cSJiri Pirko return false; 5213d249d4cSJiri Pirko } 5223d249d4cSJiri Pirko 5232ea46599Sstephen hemminger static rx_handler_result_t team_dummy_receive(struct team *team, 5243d249d4cSJiri Pirko struct team_port *port, 5253d249d4cSJiri Pirko struct sk_buff *skb) 5263d249d4cSJiri Pirko { 5273d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 5283d249d4cSJiri Pirko } 5293d249d4cSJiri Pirko 530d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 531d299cd51SJiri Pirko .kind = "*NOMODE*", 532d299cd51SJiri Pirko }; 533d299cd51SJiri Pirko 534d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 535d299cd51SJiri Pirko { 536d299cd51SJiri Pirko return team->mode != &__team_no_mode; 537d299cd51SJiri Pirko } 538d299cd51SJiri Pirko 539d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 540d299cd51SJiri Pirko { 541e185483eSFlavio Leitner team->user_carrier_enabled = false; 542d299cd51SJiri Pirko team->mode = &__team_no_mode; 543d299cd51SJiri Pirko } 544d299cd51SJiri Pirko 545735d381fSJiri Pirko static void team_adjust_ops(struct team *team) 5463d249d4cSJiri Pirko { 5473d249d4cSJiri Pirko /* 5483d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5493d249d4cSJiri Pirko * correct ops are always set. 5503d249d4cSJiri Pirko */ 5513d249d4cSJiri Pirko 552735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 553122bb046SJiri Pirko !team->mode->ops->transmit) 5543d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5553d249d4cSJiri Pirko else 5563d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5573d249d4cSJiri Pirko 558735d381fSJiri Pirko if (!team->en_port_count || !team_is_mode_set(team) || 559122bb046SJiri Pirko !team->mode->ops->receive) 5603d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5613d249d4cSJiri Pirko else 5623d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5633d249d4cSJiri Pirko } 5643d249d4cSJiri Pirko 5653d249d4cSJiri Pirko /* 5663d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5673d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5683d249d4cSJiri Pirko * need to set mode operations in any special way. 5693d249d4cSJiri Pirko */ 5703d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5713d249d4cSJiri Pirko const struct team_mode *new_mode) 5723d249d4cSJiri Pirko { 5733d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 574d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5753d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5763d249d4cSJiri Pirko 5773d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5783d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5793d249d4cSJiri Pirko team_adjust_ops(team); 5803d249d4cSJiri Pirko 5813d249d4cSJiri Pirko if (exit_op) 5823d249d4cSJiri Pirko exit_op(team); 5833d249d4cSJiri Pirko team_mode_put(team->mode); 584d299cd51SJiri Pirko team_set_no_mode(team); 5853d249d4cSJiri Pirko /* zero private data area */ 5863d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5873d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5883d249d4cSJiri Pirko } 5893d249d4cSJiri Pirko 5903d249d4cSJiri Pirko if (!new_mode) 5913d249d4cSJiri Pirko return 0; 5923d249d4cSJiri Pirko 5933d249d4cSJiri Pirko if (new_mode->ops->init) { 5943d249d4cSJiri Pirko int err; 5953d249d4cSJiri Pirko 5963d249d4cSJiri Pirko err = new_mode->ops->init(team); 5973d249d4cSJiri Pirko if (err) 5983d249d4cSJiri Pirko return err; 5993d249d4cSJiri Pirko } 6003d249d4cSJiri Pirko 6013d249d4cSJiri Pirko team->mode = new_mode; 6023d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 6033d249d4cSJiri Pirko team_adjust_ops(team); 6043d249d4cSJiri Pirko 6053d249d4cSJiri Pirko return 0; 6063d249d4cSJiri Pirko } 6073d249d4cSJiri Pirko 6083d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 6093d249d4cSJiri Pirko { 6100402788aSJiri Pirko const struct team_mode *new_mode; 6113d249d4cSJiri Pirko struct net_device *dev = team->dev; 6123d249d4cSJiri Pirko int err; 6133d249d4cSJiri Pirko 6143d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 6153d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 6163d249d4cSJiri Pirko return -EBUSY; 6173d249d4cSJiri Pirko } 6183d249d4cSJiri Pirko 619d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 6203d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 6213d249d4cSJiri Pirko return -EINVAL; 6223d249d4cSJiri Pirko } 6233d249d4cSJiri Pirko 6243d249d4cSJiri Pirko new_mode = team_mode_get(kind); 6253d249d4cSJiri Pirko if (!new_mode) { 6263d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6273d249d4cSJiri Pirko return -EINVAL; 6283d249d4cSJiri Pirko } 6293d249d4cSJiri Pirko 6303d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6313d249d4cSJiri Pirko if (err) { 6323d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6333d249d4cSJiri Pirko team_mode_put(new_mode); 6343d249d4cSJiri Pirko return err; 6353d249d4cSJiri Pirko } 6363d249d4cSJiri Pirko 6373d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6383d249d4cSJiri Pirko return 0; 6393d249d4cSJiri Pirko } 6403d249d4cSJiri Pirko 6413d249d4cSJiri Pirko 642fc423ff0SJiri Pirko /********************* 643fc423ff0SJiri Pirko * Peers notification 644fc423ff0SJiri Pirko *********************/ 645fc423ff0SJiri Pirko 646fc423ff0SJiri Pirko static void team_notify_peers_work(struct work_struct *work) 647fc423ff0SJiri Pirko { 648fc423ff0SJiri Pirko struct team *team; 649b0d11b42SJiri Pirko int val; 650fc423ff0SJiri Pirko 651fc423ff0SJiri Pirko team = container_of(work, struct team, notify_peers.dw.work); 652fc423ff0SJiri Pirko 653fc423ff0SJiri Pirko if (!rtnl_trylock()) { 654fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 655fc423ff0SJiri Pirko return; 656fc423ff0SJiri Pirko } 657b0d11b42SJiri Pirko val = atomic_dec_if_positive(&team->notify_peers.count_pending); 658b0d11b42SJiri Pirko if (val < 0) { 659b0d11b42SJiri Pirko rtnl_unlock(); 660b0d11b42SJiri Pirko return; 661b0d11b42SJiri Pirko } 662fc423ff0SJiri Pirko call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); 663fc423ff0SJiri Pirko rtnl_unlock(); 664b0d11b42SJiri Pirko if (val) 665fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 666fc423ff0SJiri Pirko msecs_to_jiffies(team->notify_peers.interval)); 667fc423ff0SJiri Pirko } 668fc423ff0SJiri Pirko 669fc423ff0SJiri Pirko static void team_notify_peers(struct team *team) 670fc423ff0SJiri Pirko { 671fc423ff0SJiri Pirko if (!team->notify_peers.count || !netif_running(team->dev)) 672fc423ff0SJiri Pirko return; 67347549650SJoe Lawrence atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); 674fc423ff0SJiri Pirko schedule_delayed_work(&team->notify_peers.dw, 0); 675fc423ff0SJiri Pirko } 676fc423ff0SJiri Pirko 677fc423ff0SJiri Pirko static void team_notify_peers_init(struct team *team) 678fc423ff0SJiri Pirko { 679fc423ff0SJiri Pirko INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); 680fc423ff0SJiri Pirko } 681fc423ff0SJiri Pirko 682fc423ff0SJiri Pirko static void team_notify_peers_fini(struct team *team) 683fc423ff0SJiri Pirko { 684fc423ff0SJiri Pirko cancel_delayed_work_sync(&team->notify_peers.dw); 685fc423ff0SJiri Pirko } 686fc423ff0SJiri Pirko 687fc423ff0SJiri Pirko 688492b200eSJiri Pirko /******************************* 689492b200eSJiri Pirko * Send multicast group rejoins 690492b200eSJiri Pirko *******************************/ 691492b200eSJiri Pirko 692492b200eSJiri Pirko static void team_mcast_rejoin_work(struct work_struct *work) 693492b200eSJiri Pirko { 694492b200eSJiri Pirko struct team *team; 695b0d11b42SJiri Pirko int val; 696492b200eSJiri Pirko 697492b200eSJiri Pirko team = container_of(work, struct team, mcast_rejoin.dw.work); 698492b200eSJiri Pirko 699492b200eSJiri Pirko if (!rtnl_trylock()) { 700492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 701492b200eSJiri Pirko return; 702492b200eSJiri Pirko } 703b0d11b42SJiri Pirko val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); 704b0d11b42SJiri Pirko if (val < 0) { 705b0d11b42SJiri Pirko rtnl_unlock(); 706b0d11b42SJiri Pirko return; 707b0d11b42SJiri Pirko } 708492b200eSJiri Pirko call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); 709492b200eSJiri Pirko rtnl_unlock(); 710b0d11b42SJiri Pirko if (val) 711492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 712492b200eSJiri Pirko msecs_to_jiffies(team->mcast_rejoin.interval)); 713492b200eSJiri Pirko } 714492b200eSJiri Pirko 715492b200eSJiri Pirko static void team_mcast_rejoin(struct team *team) 716492b200eSJiri Pirko { 717492b200eSJiri Pirko if (!team->mcast_rejoin.count || !netif_running(team->dev)) 718492b200eSJiri Pirko return; 71947549650SJoe Lawrence atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); 720492b200eSJiri Pirko schedule_delayed_work(&team->mcast_rejoin.dw, 0); 721492b200eSJiri Pirko } 722492b200eSJiri Pirko 723492b200eSJiri Pirko static void team_mcast_rejoin_init(struct team *team) 724492b200eSJiri Pirko { 725492b200eSJiri Pirko INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); 726492b200eSJiri Pirko } 727492b200eSJiri Pirko 728492b200eSJiri Pirko static void team_mcast_rejoin_fini(struct team *team) 729492b200eSJiri Pirko { 730492b200eSJiri Pirko cancel_delayed_work_sync(&team->mcast_rejoin.dw); 731492b200eSJiri Pirko } 732492b200eSJiri Pirko 733492b200eSJiri Pirko 7343d249d4cSJiri Pirko /************************ 7353d249d4cSJiri Pirko * Rx path frame handler 7363d249d4cSJiri Pirko ************************/ 7373d249d4cSJiri Pirko 7383d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 7393d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 7403d249d4cSJiri Pirko { 7413d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 7423d249d4cSJiri Pirko struct team_port *port; 7433d249d4cSJiri Pirko struct team *team; 7443d249d4cSJiri Pirko rx_handler_result_t res; 7453d249d4cSJiri Pirko 7463d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 7473d249d4cSJiri Pirko if (!skb) 7483d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 7493d249d4cSJiri Pirko 7503d249d4cSJiri Pirko *pskb = skb; 7513d249d4cSJiri Pirko 7523d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 7533d249d4cSJiri Pirko team = port->team; 75419a0b58eSJiri Pirko if (!team_port_enabled(port)) { 75519a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 75619a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 75719a0b58eSJiri Pirko } else { 7583d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 75919a0b58eSJiri Pirko } 7603d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 7613d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 7623d249d4cSJiri Pirko 7633d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 7643d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 7653d249d4cSJiri Pirko pcpu_stats->rx_packets++; 7663d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 7673d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 7683d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 7693d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 7703d249d4cSJiri Pirko 7713d249d4cSJiri Pirko skb->dev = team->dev; 772bb63daf9SJarod Wilson } else if (res == RX_HANDLER_EXACT) { 773bb63daf9SJarod Wilson this_cpu_inc(team->pcpu_stats->rx_nohandler); 7743d249d4cSJiri Pirko } else { 7753d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 7763d249d4cSJiri Pirko } 7773d249d4cSJiri Pirko 7783d249d4cSJiri Pirko return res; 7793d249d4cSJiri Pirko } 7803d249d4cSJiri Pirko 7813d249d4cSJiri Pirko 7828ff5105aSJiri Pirko /************************************* 7838ff5105aSJiri Pirko * Multiqueue Tx port select override 7848ff5105aSJiri Pirko *************************************/ 7858ff5105aSJiri Pirko 7868ff5105aSJiri Pirko static int team_queue_override_init(struct team *team) 7878ff5105aSJiri Pirko { 7888ff5105aSJiri Pirko struct list_head *listarr; 7898ff5105aSJiri Pirko unsigned int queue_cnt = team->dev->num_tx_queues - 1; 7908ff5105aSJiri Pirko unsigned int i; 7918ff5105aSJiri Pirko 7928ff5105aSJiri Pirko if (!queue_cnt) 7938ff5105aSJiri Pirko return 0; 7948ff5105aSJiri Pirko listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); 7958ff5105aSJiri Pirko if (!listarr) 7968ff5105aSJiri Pirko return -ENOMEM; 7978ff5105aSJiri Pirko team->qom_lists = listarr; 7988ff5105aSJiri Pirko for (i = 0; i < queue_cnt; i++) 7998ff5105aSJiri Pirko INIT_LIST_HEAD(listarr++); 8008ff5105aSJiri Pirko return 0; 8018ff5105aSJiri Pirko } 8028ff5105aSJiri Pirko 8038ff5105aSJiri Pirko static void team_queue_override_fini(struct team *team) 8048ff5105aSJiri Pirko { 8058ff5105aSJiri Pirko kfree(team->qom_lists); 8068ff5105aSJiri Pirko } 8078ff5105aSJiri Pirko 8088ff5105aSJiri Pirko static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) 8098ff5105aSJiri Pirko { 8108ff5105aSJiri Pirko return &team->qom_lists[queue_id - 1]; 8118ff5105aSJiri Pirko } 8128ff5105aSJiri Pirko 8138ff5105aSJiri Pirko /* 8148ff5105aSJiri Pirko * note: already called with rcu_read_lock 8158ff5105aSJiri Pirko */ 8168ff5105aSJiri Pirko static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) 8178ff5105aSJiri Pirko { 8188ff5105aSJiri Pirko struct list_head *qom_list; 8198ff5105aSJiri Pirko struct team_port *port; 8208ff5105aSJiri Pirko 8218ff5105aSJiri Pirko if (!team->queue_override_enabled || !skb->queue_mapping) 8228ff5105aSJiri Pirko return false; 8238ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, skb->queue_mapping); 8248ff5105aSJiri Pirko list_for_each_entry_rcu(port, qom_list, qom_list) { 8258ff5105aSJiri Pirko if (!team_dev_queue_xmit(team, port, skb)) 8268ff5105aSJiri Pirko return true; 8278ff5105aSJiri Pirko } 8288ff5105aSJiri Pirko return false; 8298ff5105aSJiri Pirko } 8308ff5105aSJiri Pirko 8318ff5105aSJiri Pirko static void __team_queue_override_port_del(struct team *team, 8328ff5105aSJiri Pirko struct team_port *port) 8338ff5105aSJiri Pirko { 8346c31ff36SJiri Pirko if (!port->queue_id) 8356c31ff36SJiri Pirko return; 8368ff5105aSJiri Pirko list_del_rcu(&port->qom_list); 8378ff5105aSJiri Pirko } 8388ff5105aSJiri Pirko 8398ff5105aSJiri Pirko static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, 8408ff5105aSJiri Pirko struct team_port *cur) 8418ff5105aSJiri Pirko { 8428ff5105aSJiri Pirko if (port->priority < cur->priority) 8438ff5105aSJiri Pirko return true; 8448ff5105aSJiri Pirko if (port->priority > cur->priority) 8458ff5105aSJiri Pirko return false; 8468ff5105aSJiri Pirko if (port->index < cur->index) 8478ff5105aSJiri Pirko return true; 8488ff5105aSJiri Pirko return false; 8498ff5105aSJiri Pirko } 8508ff5105aSJiri Pirko 8518ff5105aSJiri Pirko static void __team_queue_override_port_add(struct team *team, 8528ff5105aSJiri Pirko struct team_port *port) 8538ff5105aSJiri Pirko { 8548ff5105aSJiri Pirko struct team_port *cur; 8558ff5105aSJiri Pirko struct list_head *qom_list; 8568ff5105aSJiri Pirko struct list_head *node; 8578ff5105aSJiri Pirko 8586c31ff36SJiri Pirko if (!port->queue_id) 8598ff5105aSJiri Pirko return; 8608ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, port->queue_id); 8618ff5105aSJiri Pirko node = qom_list; 8628ff5105aSJiri Pirko list_for_each_entry(cur, qom_list, qom_list) { 8638ff5105aSJiri Pirko if (team_queue_override_port_has_gt_prio_than(port, cur)) 8648ff5105aSJiri Pirko break; 8658ff5105aSJiri Pirko node = &cur->qom_list; 8668ff5105aSJiri Pirko } 8678ff5105aSJiri Pirko list_add_tail_rcu(&port->qom_list, node); 8688ff5105aSJiri Pirko } 8698ff5105aSJiri Pirko 8708ff5105aSJiri Pirko static void __team_queue_override_enabled_check(struct team *team) 8718ff5105aSJiri Pirko { 8728ff5105aSJiri Pirko struct team_port *port; 8738ff5105aSJiri Pirko bool enabled = false; 8748ff5105aSJiri Pirko 8758ff5105aSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 8766c31ff36SJiri Pirko if (port->queue_id) { 8778ff5105aSJiri Pirko enabled = true; 8788ff5105aSJiri Pirko break; 8798ff5105aSJiri Pirko } 8808ff5105aSJiri Pirko } 8818ff5105aSJiri Pirko if (enabled == team->queue_override_enabled) 8828ff5105aSJiri Pirko return; 8838ff5105aSJiri Pirko netdev_dbg(team->dev, "%s queue override\n", 8848ff5105aSJiri Pirko enabled ? "Enabling" : "Disabling"); 8858ff5105aSJiri Pirko team->queue_override_enabled = enabled; 8868ff5105aSJiri Pirko } 8878ff5105aSJiri Pirko 8886c31ff36SJiri Pirko static void team_queue_override_port_prio_changed(struct team *team, 8896c31ff36SJiri Pirko struct team_port *port) 8906c31ff36SJiri Pirko { 8916c31ff36SJiri Pirko if (!port->queue_id || team_port_enabled(port)) 8926c31ff36SJiri Pirko return; 8936c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 8946c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 8956c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 8966c31ff36SJiri Pirko } 8976c31ff36SJiri Pirko 8986c31ff36SJiri Pirko static void team_queue_override_port_change_queue_id(struct team *team, 8996c31ff36SJiri Pirko struct team_port *port, 9006c31ff36SJiri Pirko u16 new_queue_id) 9016c31ff36SJiri Pirko { 9026c31ff36SJiri Pirko if (team_port_enabled(port)) { 9036c31ff36SJiri Pirko __team_queue_override_port_del(team, port); 9046c31ff36SJiri Pirko port->queue_id = new_queue_id; 9056c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 9066c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 9076c31ff36SJiri Pirko } else { 9086c31ff36SJiri Pirko port->queue_id = new_queue_id; 9096c31ff36SJiri Pirko } 9106c31ff36SJiri Pirko } 9116c31ff36SJiri Pirko 9126c31ff36SJiri Pirko static void team_queue_override_port_add(struct team *team, 9136c31ff36SJiri Pirko struct team_port *port) 9146c31ff36SJiri Pirko { 9156c31ff36SJiri Pirko __team_queue_override_port_add(team, port); 9166c31ff36SJiri Pirko __team_queue_override_enabled_check(team); 9176c31ff36SJiri Pirko } 9186c31ff36SJiri Pirko 9196c31ff36SJiri Pirko static void team_queue_override_port_del(struct team *team, 9208ff5105aSJiri Pirko struct team_port *port) 9218ff5105aSJiri Pirko { 9228ff5105aSJiri Pirko __team_queue_override_port_del(team, port); 9238ff5105aSJiri Pirko __team_queue_override_enabled_check(team); 9248ff5105aSJiri Pirko } 9258ff5105aSJiri Pirko 9268ff5105aSJiri Pirko 9273d249d4cSJiri Pirko /**************** 9283d249d4cSJiri Pirko * Port handling 9293d249d4cSJiri Pirko ****************/ 9303d249d4cSJiri Pirko 9313d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 9323d249d4cSJiri Pirko const struct team_port *port) 9333d249d4cSJiri Pirko { 9343d249d4cSJiri Pirko struct team_port *cur; 9353d249d4cSJiri Pirko 9363d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 9373d249d4cSJiri Pirko if (cur == port) 9383d249d4cSJiri Pirko return true; 9393d249d4cSJiri Pirko return false; 9403d249d4cSJiri Pirko } 9413d249d4cSJiri Pirko 9423d249d4cSJiri Pirko /* 94319a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 94419a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 94519a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 94619a0b58eSJiri Pirko * by team->lock. 9473d249d4cSJiri Pirko */ 94819a0b58eSJiri Pirko static void team_port_enable(struct team *team, 9493d249d4cSJiri Pirko struct team_port *port) 9503d249d4cSJiri Pirko { 95119a0b58eSJiri Pirko if (team_port_enabled(port)) 95219a0b58eSJiri Pirko return; 95319a0b58eSJiri Pirko port->index = team->en_port_count++; 9543d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9553d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 956122bb046SJiri Pirko team_adjust_ops(team); 9576c31ff36SJiri Pirko team_queue_override_port_add(team, port); 9584bccfd17SJiri Pirko if (team->ops.port_enabled) 9594bccfd17SJiri Pirko team->ops.port_enabled(team, port); 960fc423ff0SJiri Pirko team_notify_peers(team); 961492b200eSJiri Pirko team_mcast_rejoin(team); 9623a0d6c5aSJiri Pirko team_lower_state_changed(port); 9633d249d4cSJiri Pirko } 9643d249d4cSJiri Pirko 9653d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 9663d249d4cSJiri Pirko { 9673d249d4cSJiri Pirko int i; 9683d249d4cSJiri Pirko struct team_port *port; 9693d249d4cSJiri Pirko 97019a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 9713d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 9723d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 9733d249d4cSJiri Pirko port->index--; 9743d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 9753d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 9763d249d4cSJiri Pirko } 9773d249d4cSJiri Pirko } 9783d249d4cSJiri Pirko 97919a0b58eSJiri Pirko static void team_port_disable(struct team *team, 9803d249d4cSJiri Pirko struct team_port *port) 9813d249d4cSJiri Pirko { 98219a0b58eSJiri Pirko if (!team_port_enabled(port)) 98319a0b58eSJiri Pirko return; 9844bccfd17SJiri Pirko if (team->ops.port_disabled) 9854bccfd17SJiri Pirko team->ops.port_disabled(team, port); 9863d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 987122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 98819a0b58eSJiri Pirko port->index = -1; 989122bb046SJiri Pirko team->en_port_count--; 990735d381fSJiri Pirko team_queue_override_port_del(team, port); 991735d381fSJiri Pirko team_adjust_ops(team); 992fc423ff0SJiri Pirko team_notify_peers(team); 993492b200eSJiri Pirko team_mcast_rejoin(team); 9943a0d6c5aSJiri Pirko team_lower_state_changed(port); 9953d249d4cSJiri Pirko } 9963d249d4cSJiri Pirko 997a188222bSTom Herbert #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ 9983d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 9993d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 10003d249d4cSJiri Pirko 10013268e5cbSEran Ben Elisha #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ 10023268e5cbSEran Ben Elisha NETIF_F_RXCSUM | NETIF_F_ALL_TSO) 10033268e5cbSEran Ben Elisha 100416cf72bbSXin Long static void __team_compute_features(struct team *team) 10053d249d4cSJiri Pirko { 10063d249d4cSJiri Pirko struct team_port *port; 100725ea6654SDan Carpenter netdev_features_t vlan_features = TEAM_VLAN_FEATURES & 100825ea6654SDan Carpenter NETIF_F_ALL_FOR_ALL; 10093268e5cbSEran Ben Elisha netdev_features_t enc_features = TEAM_ENC_FEATURES; 10103d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 101102875878SEric Dumazet unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | 101202875878SEric Dumazet IFF_XMIT_DST_RELEASE_PERM; 10133d249d4cSJiri Pirko 10143d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 10153d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 10163d249d4cSJiri Pirko port->dev->vlan_features, 10173d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 10183268e5cbSEran Ben Elisha enc_features = 10193268e5cbSEran Ben Elisha netdev_increment_features(enc_features, 10203268e5cbSEran Ben Elisha port->dev->hw_enc_features, 10213268e5cbSEran Ben Elisha TEAM_ENC_FEATURES); 10223268e5cbSEran Ben Elisha 10233d249d4cSJiri Pirko 1024dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 10253d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 10263d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 10273d249d4cSJiri Pirko } 10283d249d4cSJiri Pirko 10293d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 10308eea1ca8SWillem de Bruijn team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | 10318eea1ca8SWillem de Bruijn NETIF_F_GSO_UDP_L4; 10323d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 10333d249d4cSJiri Pirko 103402875878SEric Dumazet team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; 103502875878SEric Dumazet if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) 103602875878SEric Dumazet team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; 1037f6988cb6SIvan Vecera } 1038dc905951SJiri Pirko 10393d249d4cSJiri Pirko static void team_compute_features(struct team *team) 10403d249d4cSJiri Pirko { 104161dc3461SJiri Pirko mutex_lock(&team->lock); 104216cf72bbSXin Long __team_compute_features(team); 104361dc3461SJiri Pirko mutex_unlock(&team->lock); 1044f6988cb6SIvan Vecera netdev_change_features(team->dev); 10453d249d4cSJiri Pirko } 10463d249d4cSJiri Pirko 10473d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 10483d249d4cSJiri Pirko { 10493d249d4cSJiri Pirko int err = 0; 10503d249d4cSJiri Pirko 10513d249d4cSJiri Pirko dev_hold(team->dev); 10523d249d4cSJiri Pirko if (team->ops.port_enter) { 10533d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 10543d249d4cSJiri Pirko if (err) { 10553d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 10563d249d4cSJiri Pirko port->dev->name); 10573d249d4cSJiri Pirko goto err_port_enter; 10583d249d4cSJiri Pirko } 10593d249d4cSJiri Pirko } 10603d249d4cSJiri Pirko 10613d249d4cSJiri Pirko return 0; 10623d249d4cSJiri Pirko 10633d249d4cSJiri Pirko err_port_enter: 10643d249d4cSJiri Pirko dev_put(team->dev); 10653d249d4cSJiri Pirko 10663d249d4cSJiri Pirko return err; 10673d249d4cSJiri Pirko } 10683d249d4cSJiri Pirko 10693d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 10703d249d4cSJiri Pirko { 10713d249d4cSJiri Pirko if (team->ops.port_leave) 10723d249d4cSJiri Pirko team->ops.port_leave(team, port); 10733d249d4cSJiri Pirko dev_put(team->dev); 10743d249d4cSJiri Pirko } 10753d249d4cSJiri Pirko 1076bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 10779cf2f437SXin Long static int __team_port_enable_netpoll(struct team_port *port) 1078bd2d0837SJiri Pirko { 1079bd2d0837SJiri Pirko struct netpoll *np; 1080bd2d0837SJiri Pirko int err; 1081bd2d0837SJiri Pirko 1082a8779ec1SEric W. Biederman np = kzalloc(sizeof(*np), GFP_KERNEL); 1083bd2d0837SJiri Pirko if (!np) 1084bd2d0837SJiri Pirko return -ENOMEM; 1085bd2d0837SJiri Pirko 1086a8779ec1SEric W. Biederman err = __netpoll_setup(np, port->dev); 1087bd2d0837SJiri Pirko if (err) { 1088bd2d0837SJiri Pirko kfree(np); 1089bd2d0837SJiri Pirko return err; 1090bd2d0837SJiri Pirko } 1091bd2d0837SJiri Pirko port->np = np; 1092bd2d0837SJiri Pirko return err; 1093bd2d0837SJiri Pirko } 1094bd2d0837SJiri Pirko 10959cf2f437SXin Long static int team_port_enable_netpoll(struct team_port *port) 10969cf2f437SXin Long { 10979cf2f437SXin Long if (!port->team->dev->npinfo) 10989cf2f437SXin Long return 0; 10999cf2f437SXin Long 11009cf2f437SXin Long return __team_port_enable_netpoll(port); 11019cf2f437SXin Long } 11029cf2f437SXin Long 1103bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1104bd2d0837SJiri Pirko { 1105bd2d0837SJiri Pirko struct netpoll *np = port->np; 1106bd2d0837SJiri Pirko 1107bd2d0837SJiri Pirko if (!np) 1108bd2d0837SJiri Pirko return; 1109bd2d0837SJiri Pirko port->np = NULL; 1110bd2d0837SJiri Pirko 1111bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 1112bd2d0837SJiri Pirko synchronize_rcu_bh(); 1113bd2d0837SJiri Pirko __netpoll_cleanup(np); 1114bd2d0837SJiri Pirko kfree(np); 1115bd2d0837SJiri Pirko } 1116bd2d0837SJiri Pirko #else 11179cf2f437SXin Long static int team_port_enable_netpoll(struct team_port *port) 1118bd2d0837SJiri Pirko { 1119bd2d0837SJiri Pirko return 0; 1120bd2d0837SJiri Pirko } 1121bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 1122bd2d0837SJiri Pirko { 1123bd2d0837SJiri Pirko } 1124bd2d0837SJiri Pirko #endif 1125bd2d0837SJiri Pirko 112644d15d93SIdo Schimmel static int team_upper_dev_link(struct team *team, struct team_port *port, 112744d15d93SIdo Schimmel struct netlink_ext_ack *extack) 1128d7d3c051SJiri Pirko { 11298fd72856SJiri Pirko struct netdev_lag_upper_info lag_upper_info; 1130d7d3c051SJiri Pirko int err; 1131d7d3c051SJiri Pirko 11328fd72856SJiri Pirko lag_upper_info.tx_type = team->mode->lag_tx_type; 1133f44aa9efSJohn Hurley lag_upper_info.hash_type = NETDEV_LAG_HASH_UNKNOWN; 11348fd72856SJiri Pirko err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, 113544d15d93SIdo Schimmel &lag_upper_info, extack); 1136d7d3c051SJiri Pirko if (err) 1137d7d3c051SJiri Pirko return err; 11388fd72856SJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 1139d7d3c051SJiri Pirko return 0; 1140d7d3c051SJiri Pirko } 1141d7d3c051SJiri Pirko 11428fd72856SJiri Pirko static void team_upper_dev_unlink(struct team *team, struct team_port *port) 1143d7d3c051SJiri Pirko { 11448fd72856SJiri Pirko netdev_upper_dev_unlink(port->dev, team->dev); 11458fd72856SJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 1146d7d3c051SJiri Pirko } 1147d7d3c051SJiri Pirko 114810f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup); 11491d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 11501d76efe1SJiri Pirko struct net_device *port_dev); 11513d249d4cSJiri Pirko 115244d15d93SIdo Schimmel static int team_port_add(struct team *team, struct net_device *port_dev, 115344d15d93SIdo Schimmel struct netlink_ext_ack *extack) 11543d249d4cSJiri Pirko { 11553d249d4cSJiri Pirko struct net_device *dev = team->dev; 11563d249d4cSJiri Pirko struct team_port *port; 11573d249d4cSJiri Pirko char *portname = port_dev->name; 11583d249d4cSJiri Pirko int err; 11593d249d4cSJiri Pirko 11601d76efe1SJiri Pirko if (port_dev->flags & IFF_LOOPBACK) { 116144d15d93SIdo Schimmel NL_SET_ERR_MSG(extack, "Loopback device can't be added as a team port"); 11621d76efe1SJiri Pirko netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", 11633d249d4cSJiri Pirko portname); 11643d249d4cSJiri Pirko return -EINVAL; 11653d249d4cSJiri Pirko } 11663d249d4cSJiri Pirko 11673d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 116844d15d93SIdo Schimmel NL_SET_ERR_MSG(extack, "Device is already a port of a team device"); 11693d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 11703d249d4cSJiri Pirko "of a team device\n", portname); 11713d249d4cSJiri Pirko return -EBUSY; 11723d249d4cSJiri Pirko } 11733d249d4cSJiri Pirko 11742c33bb37SJiri Pirko if (port_dev->features & NETIF_F_VLAN_CHALLENGED && 11752c33bb37SJiri Pirko vlan_uses_dev(dev)) { 117644d15d93SIdo Schimmel NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up"); 11772c33bb37SJiri Pirko netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", 11782c33bb37SJiri Pirko portname); 11792c33bb37SJiri Pirko return -EPERM; 11802c33bb37SJiri Pirko } 11812c33bb37SJiri Pirko 11821d76efe1SJiri Pirko err = team_dev_type_check_change(dev, port_dev); 11831d76efe1SJiri Pirko if (err) 11841d76efe1SJiri Pirko return err; 11851d76efe1SJiri Pirko 11863d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 118744d15d93SIdo Schimmel NL_SET_ERR_MSG(extack, "Device is up. Set it down before adding it as a team port"); 11883d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 11893d249d4cSJiri Pirko portname); 11903d249d4cSJiri Pirko return -EBUSY; 11913d249d4cSJiri Pirko } 11923d249d4cSJiri Pirko 11935149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 11945149ee58SJiri Pirko GFP_KERNEL); 11953d249d4cSJiri Pirko if (!port) 11963d249d4cSJiri Pirko return -ENOMEM; 11973d249d4cSJiri Pirko 11983d249d4cSJiri Pirko port->dev = port_dev; 11993d249d4cSJiri Pirko port->team = team; 12008ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 12013d249d4cSJiri Pirko 12023d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 12033d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 12043d249d4cSJiri Pirko if (err) { 12053d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 12063d249d4cSJiri Pirko goto err_set_mtu; 12073d249d4cSJiri Pirko } 12083d249d4cSJiri Pirko 12091d76efe1SJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); 12103d249d4cSJiri Pirko 12113d249d4cSJiri Pirko err = team_port_enter(team, port); 12123d249d4cSJiri Pirko if (err) { 12133d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 12143d249d4cSJiri Pirko portname); 12153d249d4cSJiri Pirko goto err_port_enter; 12163d249d4cSJiri Pirko } 12173d249d4cSJiri Pirko 12183d249d4cSJiri Pirko err = dev_open(port_dev); 12193d249d4cSJiri Pirko if (err) { 12203d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 12213d249d4cSJiri Pirko portname); 12223d249d4cSJiri Pirko goto err_dev_open; 12233d249d4cSJiri Pirko } 12243d249d4cSJiri Pirko 122557459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 122657459185SJiri Pirko if (err) { 122757459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 122857459185SJiri Pirko portname); 122957459185SJiri Pirko goto err_vids_add; 123057459185SJiri Pirko } 123157459185SJiri Pirko 12329cf2f437SXin Long err = team_port_enable_netpoll(port); 1233bd2d0837SJiri Pirko if (err) { 1234bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 1235bd2d0837SJiri Pirko portname); 1236bd2d0837SJiri Pirko goto err_enable_netpoll; 1237bd2d0837SJiri Pirko } 1238bd2d0837SJiri Pirko 1239fbe168baSMichal Kubeček if (!(dev->features & NETIF_F_LRO)) 1240fbe168baSMichal Kubeček dev_disable_lro(port_dev); 1241fbe168baSMichal Kubeček 12423d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 12433d249d4cSJiri Pirko port); 12443d249d4cSJiri Pirko if (err) { 12453d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 12463d249d4cSJiri Pirko portname); 12473d249d4cSJiri Pirko goto err_handler_register; 12483d249d4cSJiri Pirko } 12493d249d4cSJiri Pirko 125044d15d93SIdo Schimmel err = team_upper_dev_link(team, port, extack); 1251d7d3c051SJiri Pirko if (err) { 1252d7d3c051SJiri Pirko netdev_err(dev, "Device %s failed to set upper link\n", 1253d7d3c051SJiri Pirko portname); 1254d7d3c051SJiri Pirko goto err_set_upper_link; 1255d7d3c051SJiri Pirko } 1256d7d3c051SJiri Pirko 125735b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 125880f7c668SJiri Pirko if (err) { 125980f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 126080f7c668SJiri Pirko portname); 126180f7c668SJiri Pirko goto err_option_port_add; 126280f7c668SJiri Pirko } 126380f7c668SJiri Pirko 1264982cf3b3SXin Long netif_addr_lock_bh(dev); 1265982cf3b3SXin Long dev_uc_sync_multiple(port_dev, dev); 1266982cf3b3SXin Long dev_mc_sync_multiple(port_dev, dev); 1267982cf3b3SXin Long netif_addr_unlock_bh(dev); 1268982cf3b3SXin Long 126919a0b58eSJiri Pirko port->index = -1; 127019a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 127172df935dSJiri Pirko team_port_enable(team, port); 12723d249d4cSJiri Pirko __team_compute_features(team); 127310f3f51dSJiri Pirko __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); 127435b384bdSJiri Pirko __team_options_change_check(team); 12753d249d4cSJiri Pirko 12763d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 12773d249d4cSJiri Pirko 12783d249d4cSJiri Pirko return 0; 12793d249d4cSJiri Pirko 128080f7c668SJiri Pirko err_option_port_add: 12818fd72856SJiri Pirko team_upper_dev_unlink(team, port); 1282d7d3c051SJiri Pirko 1283d7d3c051SJiri Pirko err_set_upper_link: 128480f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 128580f7c668SJiri Pirko 12863d249d4cSJiri Pirko err_handler_register: 1287bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1288bd2d0837SJiri Pirko 1289bd2d0837SJiri Pirko err_enable_netpoll: 129057459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 129157459185SJiri Pirko 129257459185SJiri Pirko err_vids_add: 12933d249d4cSJiri Pirko dev_close(port_dev); 12943d249d4cSJiri Pirko 12953d249d4cSJiri Pirko err_dev_open: 12963d249d4cSJiri Pirko team_port_leave(team, port); 12971d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 12983d249d4cSJiri Pirko 12993d249d4cSJiri Pirko err_port_enter: 13003d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 13013d249d4cSJiri Pirko 13023d249d4cSJiri Pirko err_set_mtu: 13033d249d4cSJiri Pirko kfree(port); 13043d249d4cSJiri Pirko 13053d249d4cSJiri Pirko return err; 13063d249d4cSJiri Pirko } 13073d249d4cSJiri Pirko 130810f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port); 130910f3f51dSJiri Pirko 13103d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 13113d249d4cSJiri Pirko { 13123d249d4cSJiri Pirko struct net_device *dev = team->dev; 13133d249d4cSJiri Pirko struct team_port *port; 13143d249d4cSJiri Pirko char *portname = port_dev->name; 13153d249d4cSJiri Pirko 13163d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 13173d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 13183d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 13193d249d4cSJiri Pirko portname); 13203d249d4cSJiri Pirko return -ENOENT; 13213d249d4cSJiri Pirko } 13223d249d4cSJiri Pirko 132319a0b58eSJiri Pirko team_port_disable(team, port); 132419a0b58eSJiri Pirko list_del_rcu(&port->list); 13258fd72856SJiri Pirko team_upper_dev_unlink(team, port); 13263d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 1327bd2d0837SJiri Pirko team_port_disable_netpoll(port); 132857459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 1329ba81276bSVlad Yasevich dev_uc_unsync(port_dev, dev); 1330ba81276bSVlad Yasevich dev_mc_unsync(port_dev, dev); 13313d249d4cSJiri Pirko dev_close(port_dev); 13323d249d4cSJiri Pirko team_port_leave(team, port); 1333c3969d80SJiri Pirko 1334c3969d80SJiri Pirko __team_option_inst_mark_removed_port(team, port); 1335c3969d80SJiri Pirko __team_options_change_check(team); 1336c3969d80SJiri Pirko __team_option_inst_del_port(team, port); 1337c3969d80SJiri Pirko __team_port_change_port_removed(port); 1338c3969d80SJiri Pirko 13391d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 13403d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 1341d80b35beSJiri Pirko kfree_rcu(port, rcu); 13423d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 13433d249d4cSJiri Pirko __team_compute_features(team); 13443d249d4cSJiri Pirko 13453d249d4cSJiri Pirko return 0; 13463d249d4cSJiri Pirko } 13473d249d4cSJiri Pirko 13483d249d4cSJiri Pirko 13493d249d4cSJiri Pirko /***************** 13503d249d4cSJiri Pirko * Net device ops 13513d249d4cSJiri Pirko *****************/ 13523d249d4cSJiri Pirko 135380f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 13543d249d4cSJiri Pirko { 1355d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 13563d249d4cSJiri Pirko return 0; 13573d249d4cSJiri Pirko } 13583d249d4cSJiri Pirko 135980f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 13603d249d4cSJiri Pirko { 136180f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 13623d249d4cSJiri Pirko } 13633d249d4cSJiri Pirko 1364fc423ff0SJiri Pirko static int team_notify_peers_count_get(struct team *team, 1365fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1366fc423ff0SJiri Pirko { 1367fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.count; 1368fc423ff0SJiri Pirko return 0; 1369fc423ff0SJiri Pirko } 1370fc423ff0SJiri Pirko 1371fc423ff0SJiri Pirko static int team_notify_peers_count_set(struct team *team, 1372fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1373fc423ff0SJiri Pirko { 1374fc423ff0SJiri Pirko team->notify_peers.count = ctx->data.u32_val; 1375fc423ff0SJiri Pirko return 0; 1376fc423ff0SJiri Pirko } 1377fc423ff0SJiri Pirko 1378fc423ff0SJiri Pirko static int team_notify_peers_interval_get(struct team *team, 1379fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1380fc423ff0SJiri Pirko { 1381fc423ff0SJiri Pirko ctx->data.u32_val = team->notify_peers.interval; 1382fc423ff0SJiri Pirko return 0; 1383fc423ff0SJiri Pirko } 1384fc423ff0SJiri Pirko 1385fc423ff0SJiri Pirko static int team_notify_peers_interval_set(struct team *team, 1386fc423ff0SJiri Pirko struct team_gsetter_ctx *ctx) 1387fc423ff0SJiri Pirko { 1388fc423ff0SJiri Pirko team->notify_peers.interval = ctx->data.u32_val; 1389fc423ff0SJiri Pirko return 0; 1390fc423ff0SJiri Pirko } 1391fc423ff0SJiri Pirko 1392492b200eSJiri Pirko static int team_mcast_rejoin_count_get(struct team *team, 1393492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1394492b200eSJiri Pirko { 1395492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.count; 1396492b200eSJiri Pirko return 0; 1397492b200eSJiri Pirko } 1398492b200eSJiri Pirko 1399492b200eSJiri Pirko static int team_mcast_rejoin_count_set(struct team *team, 1400492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1401492b200eSJiri Pirko { 1402492b200eSJiri Pirko team->mcast_rejoin.count = ctx->data.u32_val; 1403492b200eSJiri Pirko return 0; 1404492b200eSJiri Pirko } 1405492b200eSJiri Pirko 1406492b200eSJiri Pirko static int team_mcast_rejoin_interval_get(struct team *team, 1407492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1408492b200eSJiri Pirko { 1409492b200eSJiri Pirko ctx->data.u32_val = team->mcast_rejoin.interval; 1410492b200eSJiri Pirko return 0; 1411492b200eSJiri Pirko } 1412492b200eSJiri Pirko 1413492b200eSJiri Pirko static int team_mcast_rejoin_interval_set(struct team *team, 1414492b200eSJiri Pirko struct team_gsetter_ctx *ctx) 1415492b200eSJiri Pirko { 1416492b200eSJiri Pirko team->mcast_rejoin.interval = ctx->data.u32_val; 1417492b200eSJiri Pirko return 0; 1418492b200eSJiri Pirko } 1419492b200eSJiri Pirko 1420acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1421acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1422acd69962SJiri Pirko { 142385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 142485d59a87SJiri Pirko 142585d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1426acd69962SJiri Pirko return 0; 1427acd69962SJiri Pirko } 1428acd69962SJiri Pirko 1429acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1430acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1431acd69962SJiri Pirko { 143285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 143385d59a87SJiri Pirko 1434acd69962SJiri Pirko if (ctx->data.bool_val) 143585d59a87SJiri Pirko team_port_enable(team, port); 1436acd69962SJiri Pirko else 143785d59a87SJiri Pirko team_port_disable(team, port); 1438acd69962SJiri Pirko return 0; 1439acd69962SJiri Pirko } 1440acd69962SJiri Pirko 144171472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 144271472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 144371472ec1SJiri Pirko { 144485d59a87SJiri Pirko struct team_port *port = ctx->info->port; 144585d59a87SJiri Pirko 144685d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 144771472ec1SJiri Pirko return 0; 144871472ec1SJiri Pirko } 144971472ec1SJiri Pirko 1450f5e0d343SJiri Pirko static void __team_carrier_check(struct team *team); 1451f5e0d343SJiri Pirko 145271472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 145371472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 145471472ec1SJiri Pirko { 145585d59a87SJiri Pirko struct team_port *port = ctx->info->port; 145685d59a87SJiri Pirko 145785d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 145885d59a87SJiri Pirko team_refresh_port_linkup(port); 1459f5e0d343SJiri Pirko __team_carrier_check(port->team); 146071472ec1SJiri Pirko return 0; 146171472ec1SJiri Pirko } 146271472ec1SJiri Pirko 146371472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 146471472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 146571472ec1SJiri Pirko { 146685d59a87SJiri Pirko struct team_port *port = ctx->info->port; 146771472ec1SJiri Pirko 146871472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 146971472ec1SJiri Pirko return 0; 147071472ec1SJiri Pirko } 147171472ec1SJiri Pirko 147271472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 147371472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 147471472ec1SJiri Pirko { 147585d59a87SJiri Pirko struct team_port *port = ctx->info->port; 147671472ec1SJiri Pirko 147771472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 147885d59a87SJiri Pirko team_refresh_port_linkup(port); 1479f5e0d343SJiri Pirko __team_carrier_check(port->team); 148071472ec1SJiri Pirko return 0; 148171472ec1SJiri Pirko } 148271472ec1SJiri Pirko 1483a86fc6b7SJiri Pirko static int team_priority_option_get(struct team *team, 1484a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1485a86fc6b7SJiri Pirko { 1486a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1487a86fc6b7SJiri Pirko 1488a86fc6b7SJiri Pirko ctx->data.s32_val = port->priority; 1489a86fc6b7SJiri Pirko return 0; 1490a86fc6b7SJiri Pirko } 1491a86fc6b7SJiri Pirko 1492a86fc6b7SJiri Pirko static int team_priority_option_set(struct team *team, 1493a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1494a86fc6b7SJiri Pirko { 1495a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 14966c31ff36SJiri Pirko s32 priority = ctx->data.s32_val; 1497a86fc6b7SJiri Pirko 14986c31ff36SJiri Pirko if (port->priority == priority) 14996c31ff36SJiri Pirko return 0; 15006c31ff36SJiri Pirko port->priority = priority; 15016c31ff36SJiri Pirko team_queue_override_port_prio_changed(team, port); 1502a86fc6b7SJiri Pirko return 0; 1503a86fc6b7SJiri Pirko } 1504a86fc6b7SJiri Pirko 15058ff5105aSJiri Pirko static int team_queue_id_option_get(struct team *team, 15068ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 15078ff5105aSJiri Pirko { 15088ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 15098ff5105aSJiri Pirko 15108ff5105aSJiri Pirko ctx->data.u32_val = port->queue_id; 15118ff5105aSJiri Pirko return 0; 15128ff5105aSJiri Pirko } 15138ff5105aSJiri Pirko 15148ff5105aSJiri Pirko static int team_queue_id_option_set(struct team *team, 15158ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 15168ff5105aSJiri Pirko { 15178ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 15186c31ff36SJiri Pirko u16 new_queue_id = ctx->data.u32_val; 15198ff5105aSJiri Pirko 15206c31ff36SJiri Pirko if (port->queue_id == new_queue_id) 15218ff5105aSJiri Pirko return 0; 15226c31ff36SJiri Pirko if (new_queue_id >= team->dev->real_num_tx_queues) 15238ff5105aSJiri Pirko return -EINVAL; 15246c31ff36SJiri Pirko team_queue_override_port_change_queue_id(team, port, new_queue_id); 15258ff5105aSJiri Pirko return 0; 15268ff5105aSJiri Pirko } 15278ff5105aSJiri Pirko 1528358b8382SJiri Pirko static const struct team_option team_options[] = { 15293d249d4cSJiri Pirko { 15303d249d4cSJiri Pirko .name = "mode", 15313d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 15323d249d4cSJiri Pirko .getter = team_mode_option_get, 15333d249d4cSJiri Pirko .setter = team_mode_option_set, 15343d249d4cSJiri Pirko }, 153571472ec1SJiri Pirko { 1536fc423ff0SJiri Pirko .name = "notify_peers_count", 1537fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1538fc423ff0SJiri Pirko .getter = team_notify_peers_count_get, 1539fc423ff0SJiri Pirko .setter = team_notify_peers_count_set, 1540fc423ff0SJiri Pirko }, 1541fc423ff0SJiri Pirko { 1542fc423ff0SJiri Pirko .name = "notify_peers_interval", 1543fc423ff0SJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1544fc423ff0SJiri Pirko .getter = team_notify_peers_interval_get, 1545fc423ff0SJiri Pirko .setter = team_notify_peers_interval_set, 1546fc423ff0SJiri Pirko }, 1547fc423ff0SJiri Pirko { 1548492b200eSJiri Pirko .name = "mcast_rejoin_count", 1549492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1550492b200eSJiri Pirko .getter = team_mcast_rejoin_count_get, 1551492b200eSJiri Pirko .setter = team_mcast_rejoin_count_set, 1552492b200eSJiri Pirko }, 1553492b200eSJiri Pirko { 1554492b200eSJiri Pirko .name = "mcast_rejoin_interval", 1555492b200eSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 1556492b200eSJiri Pirko .getter = team_mcast_rejoin_interval_get, 1557492b200eSJiri Pirko .setter = team_mcast_rejoin_interval_set, 1558492b200eSJiri Pirko }, 1559492b200eSJiri Pirko { 1560acd69962SJiri Pirko .name = "enabled", 1561acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1562acd69962SJiri Pirko .per_port = true, 1563acd69962SJiri Pirko .getter = team_port_en_option_get, 1564acd69962SJiri Pirko .setter = team_port_en_option_set, 1565acd69962SJiri Pirko }, 1566acd69962SJiri Pirko { 156771472ec1SJiri Pirko .name = "user_linkup", 156871472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 156971472ec1SJiri Pirko .per_port = true, 157071472ec1SJiri Pirko .getter = team_user_linkup_option_get, 157171472ec1SJiri Pirko .setter = team_user_linkup_option_set, 157271472ec1SJiri Pirko }, 157371472ec1SJiri Pirko { 157471472ec1SJiri Pirko .name = "user_linkup_enabled", 157571472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 157671472ec1SJiri Pirko .per_port = true, 157771472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 157871472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 157971472ec1SJiri Pirko }, 1580a86fc6b7SJiri Pirko { 1581a86fc6b7SJiri Pirko .name = "priority", 1582a86fc6b7SJiri Pirko .type = TEAM_OPTION_TYPE_S32, 1583a86fc6b7SJiri Pirko .per_port = true, 1584a86fc6b7SJiri Pirko .getter = team_priority_option_get, 1585a86fc6b7SJiri Pirko .setter = team_priority_option_set, 1586a86fc6b7SJiri Pirko }, 15878ff5105aSJiri Pirko { 15888ff5105aSJiri Pirko .name = "queue_id", 15898ff5105aSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 15908ff5105aSJiri Pirko .per_port = true, 15918ff5105aSJiri Pirko .getter = team_queue_id_option_get, 15928ff5105aSJiri Pirko .setter = team_queue_id_option_set, 15938ff5105aSJiri Pirko }, 15943d249d4cSJiri Pirko }; 15953d249d4cSJiri Pirko 15966c85f2bdSJiri Pirko 15973d249d4cSJiri Pirko static int team_init(struct net_device *dev) 15983d249d4cSJiri Pirko { 15993d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16003d249d4cSJiri Pirko int i; 1601358b8382SJiri Pirko int err; 16023d249d4cSJiri Pirko 16033d249d4cSJiri Pirko team->dev = dev; 160461dc3461SJiri Pirko mutex_init(&team->lock); 1605d299cd51SJiri Pirko team_set_no_mode(team); 16063d249d4cSJiri Pirko 16071c213bd2SWANG Cong team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); 16083d249d4cSJiri Pirko if (!team->pcpu_stats) 16093d249d4cSJiri Pirko return -ENOMEM; 16103d249d4cSJiri Pirko 16113d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 161219a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 16133d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 16148ff5105aSJiri Pirko err = team_queue_override_init(team); 16158ff5105aSJiri Pirko if (err) 16168ff5105aSJiri Pirko goto err_team_queue_override_init; 16173d249d4cSJiri Pirko 16183d249d4cSJiri Pirko team_adjust_ops(team); 16193d249d4cSJiri Pirko 16203d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 162180f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1622fc423ff0SJiri Pirko 1623fc423ff0SJiri Pirko team_notify_peers_init(team); 1624492b200eSJiri Pirko team_mcast_rejoin_init(team); 1625fc423ff0SJiri Pirko 1626358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1627358b8382SJiri Pirko if (err) 1628358b8382SJiri Pirko goto err_options_register; 16293d249d4cSJiri Pirko netif_carrier_off(dev); 16303d249d4cSJiri Pirko 1631d3fff6c4SEric Dumazet netdev_lockdep_set_classes(dev); 16326c85f2bdSJiri Pirko 16333d249d4cSJiri Pirko return 0; 1634358b8382SJiri Pirko 1635358b8382SJiri Pirko err_options_register: 1636492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1637fc423ff0SJiri Pirko team_notify_peers_fini(team); 16388ff5105aSJiri Pirko team_queue_override_fini(team); 16398ff5105aSJiri Pirko err_team_queue_override_init: 1640358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1641358b8382SJiri Pirko 1642358b8382SJiri Pirko return err; 16433d249d4cSJiri Pirko } 16443d249d4cSJiri Pirko 16453d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 16463d249d4cSJiri Pirko { 16473d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16483d249d4cSJiri Pirko struct team_port *port; 16493d249d4cSJiri Pirko struct team_port *tmp; 16503d249d4cSJiri Pirko 165161dc3461SJiri Pirko mutex_lock(&team->lock); 16523d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 16533d249d4cSJiri Pirko team_port_del(team, port->dev); 16543d249d4cSJiri Pirko 16553d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 16563d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 1657492b200eSJiri Pirko team_mcast_rejoin_fini(team); 1658fc423ff0SJiri Pirko team_notify_peers_fini(team); 16598ff5105aSJiri Pirko team_queue_override_fini(team); 166061dc3461SJiri Pirko mutex_unlock(&team->lock); 166116cf72bbSXin Long netdev_change_features(dev); 16623d249d4cSJiri Pirko } 16633d249d4cSJiri Pirko 16643d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 16653d249d4cSJiri Pirko { 16663d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16673d249d4cSJiri Pirko 16683d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 16693d249d4cSJiri Pirko } 16703d249d4cSJiri Pirko 16713d249d4cSJiri Pirko static int team_open(struct net_device *dev) 16723d249d4cSJiri Pirko { 16733d249d4cSJiri Pirko return 0; 16743d249d4cSJiri Pirko } 16753d249d4cSJiri Pirko 16763d249d4cSJiri Pirko static int team_close(struct net_device *dev) 16773d249d4cSJiri Pirko { 16783d249d4cSJiri Pirko return 0; 16793d249d4cSJiri Pirko } 16803d249d4cSJiri Pirko 16813d249d4cSJiri Pirko /* 16823d249d4cSJiri Pirko * note: already called with rcu_read_lock 16833d249d4cSJiri Pirko */ 16843d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 16853d249d4cSJiri Pirko { 16863d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16878ff5105aSJiri Pirko bool tx_success; 16883d249d4cSJiri Pirko unsigned int len = skb->len; 16893d249d4cSJiri Pirko 16908ff5105aSJiri Pirko tx_success = team_queue_override_transmit(team, skb); 16918ff5105aSJiri Pirko if (!tx_success) 16923d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 16933d249d4cSJiri Pirko if (tx_success) { 16943d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 16953d249d4cSJiri Pirko 16963d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 16973d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 16983d249d4cSJiri Pirko pcpu_stats->tx_packets++; 16993d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 17003d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 17013d249d4cSJiri Pirko } else { 17023d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 17033d249d4cSJiri Pirko } 17043d249d4cSJiri Pirko 17053d249d4cSJiri Pirko return NETDEV_TX_OK; 17063d249d4cSJiri Pirko } 17073d249d4cSJiri Pirko 1708f663dd9aSJason Wang static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, 170999932d4fSDaniel Borkmann void *accel_priv, select_queue_fallback_t fallback) 17106c85f2bdSJiri Pirko { 17116c85f2bdSJiri Pirko /* 17126c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 17136c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 17146c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 17156c85f2bdSJiri Pirko * way down to the team driver. 17166c85f2bdSJiri Pirko */ 17176c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 17186c85f2bdSJiri Pirko 17196c85f2bdSJiri Pirko /* 17206c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 17216c85f2bdSJiri Pirko */ 17226c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 17236c85f2bdSJiri Pirko 17246c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 17256c85f2bdSJiri Pirko do { 17266c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 17276c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 17286c85f2bdSJiri Pirko } 17296c85f2bdSJiri Pirko return txq; 17306c85f2bdSJiri Pirko } 17316c85f2bdSJiri Pirko 17323d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 17333d249d4cSJiri Pirko { 17343d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17353d249d4cSJiri Pirko struct team_port *port; 17363d249d4cSJiri Pirko int inc; 17373d249d4cSJiri Pirko 17383d249d4cSJiri Pirko rcu_read_lock(); 17393d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 17403d249d4cSJiri Pirko if (change & IFF_PROMISC) { 17413d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 17423d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 17433d249d4cSJiri Pirko } 17443d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 17453d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 17463d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 17473d249d4cSJiri Pirko } 17483d249d4cSJiri Pirko } 17493d249d4cSJiri Pirko rcu_read_unlock(); 17503d249d4cSJiri Pirko } 17513d249d4cSJiri Pirko 17523d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 17533d249d4cSJiri Pirko { 17543d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17553d249d4cSJiri Pirko struct team_port *port; 17563d249d4cSJiri Pirko 17573d249d4cSJiri Pirko rcu_read_lock(); 17583d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 175972b27032SVlad Yasevich dev_uc_sync_multiple(port->dev, dev); 176072b27032SVlad Yasevich dev_mc_sync_multiple(port->dev, dev); 17613d249d4cSJiri Pirko } 17623d249d4cSJiri Pirko rcu_read_unlock(); 17633d249d4cSJiri Pirko } 17643d249d4cSJiri Pirko 17653d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 17663d249d4cSJiri Pirko { 17671d76efe1SJiri Pirko struct sockaddr *addr = p; 17683d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17693d249d4cSJiri Pirko struct team_port *port; 17703d249d4cSJiri Pirko 17711d76efe1SJiri Pirko if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) 17721d76efe1SJiri Pirko return -EADDRNOTAVAIL; 17731d76efe1SJiri Pirko memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 17749215f437SJiri Pirko mutex_lock(&team->lock); 17759215f437SJiri Pirko list_for_each_entry(port, &team->port_list, list) 17761d76efe1SJiri Pirko if (team->ops.port_change_dev_addr) 17771d76efe1SJiri Pirko team->ops.port_change_dev_addr(team, port); 17789215f437SJiri Pirko mutex_unlock(&team->lock); 17793d249d4cSJiri Pirko return 0; 17803d249d4cSJiri Pirko } 17813d249d4cSJiri Pirko 17823d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 17833d249d4cSJiri Pirko { 17843d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 17853d249d4cSJiri Pirko struct team_port *port; 17863d249d4cSJiri Pirko int err; 17873d249d4cSJiri Pirko 17883d249d4cSJiri Pirko /* 17893d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 17903d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 17913d249d4cSJiri Pirko */ 179261dc3461SJiri Pirko mutex_lock(&team->lock); 17939d0d68faSJiri Pirko team->port_mtu_change_allowed = true; 17943d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17953d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 17963d249d4cSJiri Pirko if (err) { 17973d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 17983d249d4cSJiri Pirko port->dev->name); 17993d249d4cSJiri Pirko goto unwind; 18003d249d4cSJiri Pirko } 18013d249d4cSJiri Pirko } 18029d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 180361dc3461SJiri Pirko mutex_unlock(&team->lock); 18043d249d4cSJiri Pirko 18053d249d4cSJiri Pirko dev->mtu = new_mtu; 18063d249d4cSJiri Pirko 18073d249d4cSJiri Pirko return 0; 18083d249d4cSJiri Pirko 18093d249d4cSJiri Pirko unwind: 18103d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 18113d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 18129d0d68faSJiri Pirko team->port_mtu_change_allowed = false; 181361dc3461SJiri Pirko mutex_unlock(&team->lock); 18143d249d4cSJiri Pirko 18153d249d4cSJiri Pirko return err; 18163d249d4cSJiri Pirko } 18173d249d4cSJiri Pirko 1818bc1f4470Sstephen hemminger static void 18193d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 18203d249d4cSJiri Pirko { 18213d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18223d249d4cSJiri Pirko struct team_pcpu_stats *p; 18233d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 1824bb63daf9SJarod Wilson u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; 18253d249d4cSJiri Pirko unsigned int start; 18263d249d4cSJiri Pirko int i; 18273d249d4cSJiri Pirko 18283d249d4cSJiri Pirko for_each_possible_cpu(i) { 18293d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 18303d249d4cSJiri Pirko do { 183157a7744eSEric W. Biederman start = u64_stats_fetch_begin_irq(&p->syncp); 18323d249d4cSJiri Pirko rx_packets = p->rx_packets; 18333d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 18343d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 18353d249d4cSJiri Pirko tx_packets = p->tx_packets; 18363d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 183757a7744eSEric W. Biederman } while (u64_stats_fetch_retry_irq(&p->syncp, start)); 18383d249d4cSJiri Pirko 18393d249d4cSJiri Pirko stats->rx_packets += rx_packets; 18403d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 18413d249d4cSJiri Pirko stats->multicast += rx_multicast; 18423d249d4cSJiri Pirko stats->tx_packets += tx_packets; 18433d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 18443d249d4cSJiri Pirko /* 1845bb63daf9SJarod Wilson * rx_dropped, tx_dropped & rx_nohandler are u32, 1846bb63daf9SJarod Wilson * updated without syncp protection. 18473d249d4cSJiri Pirko */ 18483d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 18493d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 1850bb63daf9SJarod Wilson rx_nohandler += p->rx_nohandler; 18513d249d4cSJiri Pirko } 18523d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 18533d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 1854bb63daf9SJarod Wilson stats->rx_nohandler = rx_nohandler; 18553d249d4cSJiri Pirko } 18563d249d4cSJiri Pirko 185780d5c368SPatrick McHardy static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) 18583d249d4cSJiri Pirko { 18593d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18603d249d4cSJiri Pirko struct team_port *port; 186187002b03SJiri Pirko int err; 18623d249d4cSJiri Pirko 186387002b03SJiri Pirko /* 186487002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 186587002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 186687002b03SJiri Pirko */ 186787002b03SJiri Pirko mutex_lock(&team->lock); 186887002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 186980d5c368SPatrick McHardy err = vlan_vid_add(port->dev, proto, vid); 187087002b03SJiri Pirko if (err) 187187002b03SJiri Pirko goto unwind; 18723d249d4cSJiri Pirko } 187387002b03SJiri Pirko mutex_unlock(&team->lock); 18748e586137SJiri Pirko 18758e586137SJiri Pirko return 0; 187687002b03SJiri Pirko 187787002b03SJiri Pirko unwind: 187887002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 187980d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 188087002b03SJiri Pirko mutex_unlock(&team->lock); 188187002b03SJiri Pirko 188287002b03SJiri Pirko return err; 18833d249d4cSJiri Pirko } 18843d249d4cSJiri Pirko 188580d5c368SPatrick McHardy static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) 18863d249d4cSJiri Pirko { 18873d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 18883d249d4cSJiri Pirko struct team_port *port; 18893d249d4cSJiri Pirko 189060a6531bSIdo Schimmel mutex_lock(&team->lock); 189160a6531bSIdo Schimmel list_for_each_entry(port, &team->port_list, list) 189280d5c368SPatrick McHardy vlan_vid_del(port->dev, proto, vid); 189360a6531bSIdo Schimmel mutex_unlock(&team->lock); 18948e586137SJiri Pirko 18958e586137SJiri Pirko return 0; 18963d249d4cSJiri Pirko } 18973d249d4cSJiri Pirko 1898bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1899bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1900bd2d0837SJiri Pirko { 1901bd2d0837SJiri Pirko } 1902bd2d0837SJiri Pirko 1903bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1904bd2d0837SJiri Pirko { 1905bd2d0837SJiri Pirko struct team_port *port; 1906bd2d0837SJiri Pirko 1907bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1908bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1909bd2d0837SJiri Pirko } 1910bd2d0837SJiri Pirko 1911bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1912bd2d0837SJiri Pirko { 1913bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1914bd2d0837SJiri Pirko 1915bd2d0837SJiri Pirko mutex_lock(&team->lock); 1916bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1917bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1918bd2d0837SJiri Pirko } 1919bd2d0837SJiri Pirko 1920bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 1921a8779ec1SEric W. Biederman struct netpoll_info *npifo) 1922bd2d0837SJiri Pirko { 1923bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1924bd2d0837SJiri Pirko struct team_port *port; 19253324d024SJiri Pirko int err = 0; 1926bd2d0837SJiri Pirko 1927bd2d0837SJiri Pirko mutex_lock(&team->lock); 1928bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 19299cf2f437SXin Long err = __team_port_enable_netpoll(port); 1930bd2d0837SJiri Pirko if (err) { 1931bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1932bd2d0837SJiri Pirko break; 1933bd2d0837SJiri Pirko } 1934bd2d0837SJiri Pirko } 1935bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1936bd2d0837SJiri Pirko return err; 1937bd2d0837SJiri Pirko } 1938bd2d0837SJiri Pirko #endif 1939bd2d0837SJiri Pirko 194033eaf2a6SDavid Ahern static int team_add_slave(struct net_device *dev, struct net_device *port_dev, 194133eaf2a6SDavid Ahern struct netlink_ext_ack *extack) 19423d249d4cSJiri Pirko { 19433d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 19443d249d4cSJiri Pirko int err; 19453d249d4cSJiri Pirko 194661dc3461SJiri Pirko mutex_lock(&team->lock); 194744d15d93SIdo Schimmel err = team_port_add(team, port_dev, extack); 194861dc3461SJiri Pirko mutex_unlock(&team->lock); 194916cf72bbSXin Long 195016cf72bbSXin Long if (!err) 195116cf72bbSXin Long netdev_change_features(dev); 195216cf72bbSXin Long 19533d249d4cSJiri Pirko return err; 19543d249d4cSJiri Pirko } 19553d249d4cSJiri Pirko 19563d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 19573d249d4cSJiri Pirko { 19583d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 19593d249d4cSJiri Pirko int err; 19603d249d4cSJiri Pirko 196161dc3461SJiri Pirko mutex_lock(&team->lock); 19623d249d4cSJiri Pirko err = team_port_del(team, port_dev); 196361dc3461SJiri Pirko mutex_unlock(&team->lock); 196416cf72bbSXin Long 196516cf72bbSXin Long if (!err) 196616cf72bbSXin Long netdev_change_features(dev); 196716cf72bbSXin Long 19683d249d4cSJiri Pirko return err; 19693d249d4cSJiri Pirko } 19703d249d4cSJiri Pirko 1971234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1972234a8fd4SJiri Pirko netdev_features_t features) 1973234a8fd4SJiri Pirko { 1974234a8fd4SJiri Pirko struct team_port *port; 1975234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1976234a8fd4SJiri Pirko netdev_features_t mask; 1977234a8fd4SJiri Pirko 19787889cbeeSScott Feldman mask = features; 1979234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1980234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1981234a8fd4SJiri Pirko 1982234a8fd4SJiri Pirko rcu_read_lock(); 1983234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1984234a8fd4SJiri Pirko features = netdev_increment_features(features, 1985234a8fd4SJiri Pirko port->dev->features, 1986234a8fd4SJiri Pirko mask); 1987234a8fd4SJiri Pirko } 1988234a8fd4SJiri Pirko rcu_read_unlock(); 1989247f6d0fSJiri Pirko 1990247f6d0fSJiri Pirko features = netdev_add_tso_features(features, mask); 1991247f6d0fSJiri Pirko 1992234a8fd4SJiri Pirko return features; 1993234a8fd4SJiri Pirko } 1994234a8fd4SJiri Pirko 19954cafe373SFlavio Leitner static int team_change_carrier(struct net_device *dev, bool new_carrier) 19964cafe373SFlavio Leitner { 1997e185483eSFlavio Leitner struct team *team = netdev_priv(dev); 1998e185483eSFlavio Leitner 1999e185483eSFlavio Leitner team->user_carrier_enabled = true; 2000e185483eSFlavio Leitner 20014cafe373SFlavio Leitner if (new_carrier) 20024cafe373SFlavio Leitner netif_carrier_on(dev); 20034cafe373SFlavio Leitner else 20044cafe373SFlavio Leitner netif_carrier_off(dev); 20054cafe373SFlavio Leitner return 0; 20064cafe373SFlavio Leitner } 20074cafe373SFlavio Leitner 20083d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 20093d249d4cSJiri Pirko .ndo_init = team_init, 20103d249d4cSJiri Pirko .ndo_uninit = team_uninit, 20113d249d4cSJiri Pirko .ndo_open = team_open, 20123d249d4cSJiri Pirko .ndo_stop = team_close, 20133d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 20146c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 20153d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 20163d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 20173d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 20183d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 20193d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 20203d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 20213d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 2022bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 2023bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 2024bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 2025bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 2026bd2d0837SJiri Pirko #endif 20273d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 20283d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 2029234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 20304cafe373SFlavio Leitner .ndo_change_carrier = team_change_carrier, 2031b9f4cf75SToshiaki Makita .ndo_features_check = passthru_features_check, 20323d249d4cSJiri Pirko }; 20333d249d4cSJiri Pirko 20347f51c587SFlavio Leitner /*********************** 20357f51c587SFlavio Leitner * ethtool interface 20367f51c587SFlavio Leitner ***********************/ 20377f51c587SFlavio Leitner 20387f51c587SFlavio Leitner static void team_ethtool_get_drvinfo(struct net_device *dev, 20397f51c587SFlavio Leitner struct ethtool_drvinfo *drvinfo) 20407f51c587SFlavio Leitner { 20413066af58SFlavio Leitner strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 20423066af58SFlavio Leitner strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); 20437f51c587SFlavio Leitner } 20447f51c587SFlavio Leitner 20457f51c587SFlavio Leitner static const struct ethtool_ops team_ethtool_ops = { 20467f51c587SFlavio Leitner .get_drvinfo = team_ethtool_get_drvinfo, 20477f51c587SFlavio Leitner .get_link = ethtool_op_get_link, 20487f51c587SFlavio Leitner }; 20493d249d4cSJiri Pirko 20503d249d4cSJiri Pirko /*********************** 20513d249d4cSJiri Pirko * rt netlink interface 20523d249d4cSJiri Pirko ***********************/ 20533d249d4cSJiri Pirko 20541d76efe1SJiri Pirko static void team_setup_by_port(struct net_device *dev, 20551d76efe1SJiri Pirko struct net_device *port_dev) 20561d76efe1SJiri Pirko { 20571d76efe1SJiri Pirko dev->header_ops = port_dev->header_ops; 20581d76efe1SJiri Pirko dev->type = port_dev->type; 20591d76efe1SJiri Pirko dev->hard_header_len = port_dev->hard_header_len; 20601d76efe1SJiri Pirko dev->addr_len = port_dev->addr_len; 20611d76efe1SJiri Pirko dev->mtu = port_dev->mtu; 20621d76efe1SJiri Pirko memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); 206393af7357SBjørn Mork eth_hw_addr_inherit(dev, port_dev); 20641d76efe1SJiri Pirko } 20651d76efe1SJiri Pirko 20661d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 20671d76efe1SJiri Pirko struct net_device *port_dev) 20681d76efe1SJiri Pirko { 20691d76efe1SJiri Pirko struct team *team = netdev_priv(dev); 20701d76efe1SJiri Pirko char *portname = port_dev->name; 20711d76efe1SJiri Pirko int err; 20721d76efe1SJiri Pirko 20731d76efe1SJiri Pirko if (dev->type == port_dev->type) 20741d76efe1SJiri Pirko return 0; 20751d76efe1SJiri Pirko if (!list_empty(&team->port_list)) { 20761d76efe1SJiri Pirko netdev_err(dev, "Device %s is of different type\n", portname); 20771d76efe1SJiri Pirko return -EBUSY; 20781d76efe1SJiri Pirko } 20791d76efe1SJiri Pirko err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); 20801d76efe1SJiri Pirko err = notifier_to_errno(err); 20811d76efe1SJiri Pirko if (err) { 20821d76efe1SJiri Pirko netdev_err(dev, "Refused to change device type\n"); 20831d76efe1SJiri Pirko return err; 20841d76efe1SJiri Pirko } 20851d76efe1SJiri Pirko dev_uc_flush(dev); 20861d76efe1SJiri Pirko dev_mc_flush(dev); 20871d76efe1SJiri Pirko team_setup_by_port(dev, port_dev); 20881d76efe1SJiri Pirko call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); 20891d76efe1SJiri Pirko return 0; 20901d76efe1SJiri Pirko } 20911d76efe1SJiri Pirko 20923d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 20933d249d4cSJiri Pirko { 20943d249d4cSJiri Pirko ether_setup(dev); 20953331aa37SJarod Wilson dev->max_mtu = ETH_MAX_MTU; 20963d249d4cSJiri Pirko 20973d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 20987f51c587SFlavio Leitner dev->ethtool_ops = &team_ethtool_ops; 2099cf124db5SDavid S. Miller dev->needs_free_netdev = true; 2100cf124db5SDavid S. Miller dev->priv_destructor = team_destructor; 21013d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 210222e380a6SPhil Sutter dev->priv_flags |= IFF_NO_QUEUE; 2103c981e421SJiri Pirko dev->priv_flags |= IFF_TEAM; 21043d249d4cSJiri Pirko 21053d249d4cSJiri Pirko /* 21063d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 21073d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 21083d249d4cSJiri Pirko * Let this up to underlay drivers. 21093d249d4cSJiri Pirko */ 21105a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 21113d249d4cSJiri Pirko 21123d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 21133d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 211499301ba1SWeilong Chen 211599301ba1SWeilong Chen /* Don't allow team devices to change network namespaces. */ 211699301ba1SWeilong Chen dev->features |= NETIF_F_NETNS_LOCAL; 211799301ba1SWeilong Chen 21183ed71471SJiri Pirko dev->hw_features = TEAM_VLAN_FEATURES | 2119f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_TX | 2120f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_RX | 2121f646968fSPatrick McHardy NETIF_F_HW_VLAN_CTAG_FILTER; 21223d249d4cSJiri Pirko 21238eea1ca8SWillem de Bruijn dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4; 21243d249d4cSJiri Pirko dev->features |= dev->hw_features; 21253d249d4cSJiri Pirko } 21263d249d4cSJiri Pirko 21273d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 21287a3f4a18SMatthias Schiffer struct nlattr *tb[], struct nlattr *data[], 21297a3f4a18SMatthias Schiffer struct netlink_ext_ack *extack) 21303d249d4cSJiri Pirko { 21313d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 21327ce5d222SDanny Kukawka eth_hw_addr_random(dev); 21333d249d4cSJiri Pirko 2134ff204cceSToshiaki Makita return register_netdevice(dev); 21353d249d4cSJiri Pirko } 21363d249d4cSJiri Pirko 2137a8b8a889SMatthias Schiffer static int team_validate(struct nlattr *tb[], struct nlattr *data[], 2138a8b8a889SMatthias Schiffer struct netlink_ext_ack *extack) 21393d249d4cSJiri Pirko { 21403d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 21413d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 21423d249d4cSJiri Pirko return -EINVAL; 21433d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 21443d249d4cSJiri Pirko return -EADDRNOTAVAIL; 21453d249d4cSJiri Pirko } 21463d249d4cSJiri Pirko return 0; 21473d249d4cSJiri Pirko } 21483d249d4cSJiri Pirko 21496c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 21506c85f2bdSJiri Pirko { 21516c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 21526c85f2bdSJiri Pirko } 21536c85f2bdSJiri Pirko 21546c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 21556c85f2bdSJiri Pirko { 21566c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 21576c85f2bdSJiri Pirko } 21586c85f2bdSJiri Pirko 21593d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 21603d249d4cSJiri Pirko .kind = DRV_NAME, 21613d249d4cSJiri Pirko .priv_size = sizeof(struct team), 21623d249d4cSJiri Pirko .setup = team_setup, 21633d249d4cSJiri Pirko .newlink = team_newlink, 21643d249d4cSJiri Pirko .validate = team_validate, 21656c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 21666c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 21673d249d4cSJiri Pirko }; 21683d249d4cSJiri Pirko 21693d249d4cSJiri Pirko 21703d249d4cSJiri Pirko /*********************************** 21713d249d4cSJiri Pirko * Generic netlink custom interface 21723d249d4cSJiri Pirko ***********************************/ 21733d249d4cSJiri Pirko 2174489111e5SJohannes Berg static struct genl_family team_nl_family; 21753d249d4cSJiri Pirko 21763d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 21773d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 21783d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 21793d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 21803d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 21813d249d4cSJiri Pirko }; 21823d249d4cSJiri Pirko 21833d249d4cSJiri Pirko static const struct nla_policy 21843d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 21853d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 21863d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 21873d249d4cSJiri Pirko .type = NLA_STRING, 21883d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 21893d249d4cSJiri Pirko }, 21903d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 21913d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 21922615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 21933d249d4cSJiri Pirko }; 21943d249d4cSJiri Pirko 21953d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 21963d249d4cSJiri Pirko { 21973d249d4cSJiri Pirko struct sk_buff *msg; 21983d249d4cSJiri Pirko void *hdr; 21993d249d4cSJiri Pirko int err; 22003d249d4cSJiri Pirko 220158050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 22023d249d4cSJiri Pirko if (!msg) 22033d249d4cSJiri Pirko return -ENOMEM; 22043d249d4cSJiri Pirko 220515e47304SEric W. Biederman hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, 22063d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 2207a326e6ddSWei Yongjun if (!hdr) { 2208a326e6ddSWei Yongjun err = -EMSGSIZE; 22093d249d4cSJiri Pirko goto err_msg_put; 22103d249d4cSJiri Pirko } 22113d249d4cSJiri Pirko 22123d249d4cSJiri Pirko genlmsg_end(msg, hdr); 22133d249d4cSJiri Pirko 221415e47304SEric W. Biederman return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); 22153d249d4cSJiri Pirko 22163d249d4cSJiri Pirko err_msg_put: 22173d249d4cSJiri Pirko nlmsg_free(msg); 22183d249d4cSJiri Pirko 22193d249d4cSJiri Pirko return err; 22203d249d4cSJiri Pirko } 22213d249d4cSJiri Pirko 22223d249d4cSJiri Pirko /* 22233d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 22248c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 22253d249d4cSJiri Pirko */ 22263d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 22273d249d4cSJiri Pirko { 22283d249d4cSJiri Pirko struct net *net = genl_info_net(info); 22293d249d4cSJiri Pirko int ifindex; 22303d249d4cSJiri Pirko struct net_device *dev; 22313d249d4cSJiri Pirko struct team *team; 22323d249d4cSJiri Pirko 22333d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 22343d249d4cSJiri Pirko return NULL; 22353d249d4cSJiri Pirko 22363d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 22378c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 22383d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 22398c0713a5SJiri Pirko if (dev) 22408c0713a5SJiri Pirko dev_put(dev); 22413d249d4cSJiri Pirko return NULL; 22423d249d4cSJiri Pirko } 22433d249d4cSJiri Pirko 22443d249d4cSJiri Pirko team = netdev_priv(dev); 224561dc3461SJiri Pirko mutex_lock(&team->lock); 22463d249d4cSJiri Pirko return team; 22473d249d4cSJiri Pirko } 22483d249d4cSJiri Pirko 22493d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 22503d249d4cSJiri Pirko { 225161dc3461SJiri Pirko mutex_unlock(&team->lock); 22528c0713a5SJiri Pirko dev_put(team->dev); 22533d249d4cSJiri Pirko } 22543d249d4cSJiri Pirko 22559b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 225615e47304SEric W. Biederman struct team *team, u32 portid); 22579b00cf2dSJiri Pirko 225815e47304SEric W. Biederman static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) 22599b00cf2dSJiri Pirko { 226015e47304SEric W. Biederman return genlmsg_unicast(dev_net(team->dev), skb, portid); 22619b00cf2dSJiri Pirko } 22629b00cf2dSJiri Pirko 226301048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 226401048d9aSJiri Pirko struct team_option_inst *opt_inst) 22653d249d4cSJiri Pirko { 22663d249d4cSJiri Pirko struct nlattr *option_item; 226780f7c668SJiri Pirko struct team_option *option = opt_inst->option; 22689b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 226980f7c668SJiri Pirko struct team_gsetter_ctx ctx; 227001048d9aSJiri Pirko int err; 22713d249d4cSJiri Pirko 22729b00cf2dSJiri Pirko ctx.info = opt_inst_info; 22739b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 22749b00cf2dSJiri Pirko if (err) 22759b00cf2dSJiri Pirko return err; 22769b00cf2dSJiri Pirko 22773d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 22783d249d4cSJiri Pirko if (!option_item) 22799b00cf2dSJiri Pirko return -EMSGSIZE; 228085d59a87SJiri Pirko 22819b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 22829b00cf2dSJiri Pirko goto nest_cancel; 228385d59a87SJiri Pirko if (opt_inst_info->port && 228480f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 228585d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 22869b00cf2dSJiri Pirko goto nest_cancel; 2287b1303326SJiri Pirko if (opt_inst->option->array_size && 2288b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 228985d59a87SJiri Pirko opt_inst_info->array_index)) 22909b00cf2dSJiri Pirko goto nest_cancel; 229185d59a87SJiri Pirko 22923d249d4cSJiri Pirko switch (option->type) { 22933d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 229486ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 22959b00cf2dSJiri Pirko goto nest_cancel; 229601048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 22979b00cf2dSJiri Pirko goto nest_cancel; 22983d249d4cSJiri Pirko break; 22993d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 230086ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 23019b00cf2dSJiri Pirko goto nest_cancel; 230286ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 230380f7c668SJiri Pirko ctx.data.str_val)) 23049b00cf2dSJiri Pirko goto nest_cancel; 23053d249d4cSJiri Pirko break; 23062615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 23072615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 23089b00cf2dSJiri Pirko goto nest_cancel; 230901048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 231001048d9aSJiri Pirko ctx.data.bin_val.ptr)) 23119b00cf2dSJiri Pirko goto nest_cancel; 23122615598fSJiri Pirko break; 231314f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 231414f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 23159b00cf2dSJiri Pirko goto nest_cancel; 231614f066baSJiri Pirko if (ctx.data.bool_val && 231714f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 23189b00cf2dSJiri Pirko goto nest_cancel; 231914f066baSJiri Pirko break; 232069821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 232169821638SJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) 232269821638SJiri Pirko goto nest_cancel; 232369821638SJiri Pirko if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) 232469821638SJiri Pirko goto nest_cancel; 232569821638SJiri Pirko break; 23263d249d4cSJiri Pirko default: 23273d249d4cSJiri Pirko BUG(); 23283d249d4cSJiri Pirko } 23299b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 23309b00cf2dSJiri Pirko goto nest_cancel; 23319b00cf2dSJiri Pirko if (opt_inst->changed) { 23329b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 23339b00cf2dSJiri Pirko goto nest_cancel; 23349b00cf2dSJiri Pirko opt_inst->changed = false; 23359b00cf2dSJiri Pirko } 23363d249d4cSJiri Pirko nla_nest_end(skb, option_item); 233701048d9aSJiri Pirko return 0; 233801048d9aSJiri Pirko 23399b00cf2dSJiri Pirko nest_cancel: 23409b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 23419b00cf2dSJiri Pirko return -EMSGSIZE; 234201048d9aSJiri Pirko } 234301048d9aSJiri Pirko 23449b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 234515e47304SEric W. Biederman struct team *team, u32 portid, 23469b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 23479b00cf2dSJiri Pirko { 23489b00cf2dSJiri Pirko int err; 23499b00cf2dSJiri Pirko 23509b00cf2dSJiri Pirko if (*pskb) { 235115e47304SEric W. Biederman err = send_func(*pskb, team, portid); 23529b00cf2dSJiri Pirko if (err) 23539b00cf2dSJiri Pirko return err; 23549b00cf2dSJiri Pirko } 235558050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 23569b00cf2dSJiri Pirko if (!*pskb) 23579b00cf2dSJiri Pirko return -ENOMEM; 23589b00cf2dSJiri Pirko return 0; 23599b00cf2dSJiri Pirko } 23609b00cf2dSJiri Pirko 236115e47304SEric W. Biederman static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, 23629b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 236301048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 236401048d9aSJiri Pirko { 236501048d9aSJiri Pirko struct nlattr *option_list; 23669b00cf2dSJiri Pirko struct nlmsghdr *nlh; 236701048d9aSJiri Pirko void *hdr; 236801048d9aSJiri Pirko struct team_option_inst *opt_inst; 236901048d9aSJiri Pirko int err; 23709b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 23719b00cf2dSJiri Pirko bool incomplete; 23729b00cf2dSJiri Pirko int i; 237301048d9aSJiri Pirko 23749b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 23759b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 23769b00cf2dSJiri Pirko 23779b00cf2dSJiri Pirko start_again: 237815e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 23799b00cf2dSJiri Pirko if (err) 23809b00cf2dSJiri Pirko return err; 23819b00cf2dSJiri Pirko 238215e47304SEric W. Biederman hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 238301048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 238472ec0bc6SPan Bian if (!hdr) { 238572ec0bc6SPan Bian nlmsg_free(skb); 2386a326e6ddSWei Yongjun return -EMSGSIZE; 238772ec0bc6SPan Bian } 238801048d9aSJiri Pirko 238901048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 239001048d9aSJiri Pirko goto nla_put_failure; 239101048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 239201048d9aSJiri Pirko if (!option_list) 239301048d9aSJiri Pirko goto nla_put_failure; 239401048d9aSJiri Pirko 23959b00cf2dSJiri Pirko i = 0; 23969b00cf2dSJiri Pirko incomplete = false; 23979b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 239801048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 23999b00cf2dSJiri Pirko if (err) { 24009b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 24019b00cf2dSJiri Pirko if (!i) 240201048d9aSJiri Pirko goto errout; 24039b00cf2dSJiri Pirko incomplete = true; 24049b00cf2dSJiri Pirko break; 24059b00cf2dSJiri Pirko } 24069b00cf2dSJiri Pirko goto errout; 24079b00cf2dSJiri Pirko } 24089b00cf2dSJiri Pirko i++; 24093d249d4cSJiri Pirko } 24103d249d4cSJiri Pirko 24113d249d4cSJiri Pirko nla_nest_end(skb, option_list); 24129b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 24139b00cf2dSJiri Pirko if (incomplete) 24149b00cf2dSJiri Pirko goto start_again; 24159b00cf2dSJiri Pirko 24169b00cf2dSJiri Pirko send_done: 241715e47304SEric W. Biederman nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 24189b00cf2dSJiri Pirko if (!nlh) { 241915e47304SEric W. Biederman err = __send_and_alloc_skb(&skb, team, portid, send_func); 24209b00cf2dSJiri Pirko if (err) 2421cbcc607eSArkadi Sharshevsky return err; 24229b00cf2dSJiri Pirko goto send_done; 24239b00cf2dSJiri Pirko } 24249b00cf2dSJiri Pirko 242515e47304SEric W. Biederman return send_func(skb, team, portid); 24263d249d4cSJiri Pirko 24273d249d4cSJiri Pirko nla_put_failure: 242880f7c668SJiri Pirko err = -EMSGSIZE; 242980f7c668SJiri Pirko errout: 24309b00cf2dSJiri Pirko nlmsg_free(skb); 243180f7c668SJiri Pirko return err; 24323d249d4cSJiri Pirko } 24333d249d4cSJiri Pirko 24343d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 24353d249d4cSJiri Pirko { 24363d249d4cSJiri Pirko struct team *team; 24379b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 24383d249d4cSJiri Pirko int err; 24399b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 24403d249d4cSJiri Pirko 24413d249d4cSJiri Pirko team = team_nl_team_get(info); 24423d249d4cSJiri Pirko if (!team) 24433d249d4cSJiri Pirko return -EINVAL; 24443d249d4cSJiri Pirko 24459b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 24469b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 244715e47304SEric W. Biederman err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, 24489b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 24499b00cf2dSJiri Pirko &sel_opt_inst_list); 24503d249d4cSJiri Pirko 24513d249d4cSJiri Pirko team_nl_team_put(team); 24523d249d4cSJiri Pirko 24533d249d4cSJiri Pirko return err; 24543d249d4cSJiri Pirko } 24553d249d4cSJiri Pirko 24562fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 24572fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 24582fcdb2c9SJiri Pirko 24593d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 24603d249d4cSJiri Pirko { 24613d249d4cSJiri Pirko struct team *team; 24623d249d4cSJiri Pirko int err = 0; 24633d249d4cSJiri Pirko int i; 24643d249d4cSJiri Pirko struct nlattr *nl_option; 24652fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 24663d249d4cSJiri Pirko 24677d259505SJiri Pirko rtnl_lock(); 24687d259505SJiri Pirko 24693d249d4cSJiri Pirko team = team_nl_team_get(info); 24707d259505SJiri Pirko if (!team) { 24717d259505SJiri Pirko err = -EINVAL; 24727d259505SJiri Pirko goto rtnl_unlock; 24737d259505SJiri Pirko } 24743d249d4cSJiri Pirko 24753d249d4cSJiri Pirko err = -EINVAL; 24763d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 24773d249d4cSJiri Pirko err = -EINVAL; 24783d249d4cSJiri Pirko goto team_put; 24793d249d4cSJiri Pirko } 24803d249d4cSJiri Pirko 24813d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 248280f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 2483b1303326SJiri Pirko struct nlattr *attr; 248414f066baSJiri Pirko struct nlattr *attr_data; 24853d249d4cSJiri Pirko enum team_option_type opt_type; 248680f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 2487b1303326SJiri Pirko u32 opt_array_index = 0; 2488b1303326SJiri Pirko bool opt_is_array = false; 248980f7c668SJiri Pirko struct team_option_inst *opt_inst; 24903d249d4cSJiri Pirko char *opt_name; 24913d249d4cSJiri Pirko bool opt_found = false; 24923d249d4cSJiri Pirko 24933d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 24943d249d4cSJiri Pirko err = -EINVAL; 24953d249d4cSJiri Pirko goto team_put; 24963d249d4cSJiri Pirko } 249780f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 2498fe52145fSJohannes Berg nl_option, team_nl_option_policy, 2499fe52145fSJohannes Berg info->extack); 25003d249d4cSJiri Pirko if (err) 25013d249d4cSJiri Pirko goto team_put; 250280f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 250314f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 25043d249d4cSJiri Pirko err = -EINVAL; 25053d249d4cSJiri Pirko goto team_put; 25063d249d4cSJiri Pirko } 250780f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 25083d249d4cSJiri Pirko case NLA_U32: 25093d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 25103d249d4cSJiri Pirko break; 25113d249d4cSJiri Pirko case NLA_STRING: 25123d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 25133d249d4cSJiri Pirko break; 25142615598fSJiri Pirko case NLA_BINARY: 25152615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 25162615598fSJiri Pirko break; 251714f066baSJiri Pirko case NLA_FLAG: 251814f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 251914f066baSJiri Pirko break; 252069821638SJiri Pirko case NLA_S32: 252169821638SJiri Pirko opt_type = TEAM_OPTION_TYPE_S32; 252269821638SJiri Pirko break; 25233d249d4cSJiri Pirko default: 25243d249d4cSJiri Pirko goto team_put; 25253d249d4cSJiri Pirko } 25263d249d4cSJiri Pirko 252714f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 252814f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 252914f066baSJiri Pirko err = -EINVAL; 253014f066baSJiri Pirko goto team_put; 253114f066baSJiri Pirko } 253214f066baSJiri Pirko 253380f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 2534b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 2535b1303326SJiri Pirko if (attr) 2536b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 2537b1303326SJiri Pirko 2538b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 2539b1303326SJiri Pirko if (attr) { 2540b1303326SJiri Pirko opt_is_array = true; 2541b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 2542b1303326SJiri Pirko } 25433d249d4cSJiri Pirko 254480f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 254580f7c668SJiri Pirko struct team_option *option = opt_inst->option; 254680f7c668SJiri Pirko struct team_gsetter_ctx ctx; 254785d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 254880f7c668SJiri Pirko int tmp_ifindex; 254980f7c668SJiri Pirko 255085d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 255185d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 255285d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 25533d249d4cSJiri Pirko if (option->type != opt_type || 255480f7c668SJiri Pirko strcmp(option->name, opt_name) || 2555b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2556b1303326SJiri Pirko (option->array_size && !opt_is_array) || 255785d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 25583d249d4cSJiri Pirko continue; 25593d249d4cSJiri Pirko opt_found = true; 256085d59a87SJiri Pirko ctx.info = opt_inst_info; 25613d249d4cSJiri Pirko switch (opt_type) { 25623d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 256314f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 25643d249d4cSJiri Pirko break; 25653d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 256614f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 25672615598fSJiri Pirko err = -EINVAL; 25682615598fSJiri Pirko goto team_put; 25692615598fSJiri Pirko } 257014f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 25713d249d4cSJiri Pirko break; 25722615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 257314f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 257414f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 257514f066baSJiri Pirko break; 257614f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 257714f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 25782615598fSJiri Pirko break; 257969821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 258069821638SJiri Pirko ctx.data.s32_val = nla_get_s32(attr_data); 258169821638SJiri Pirko break; 25823d249d4cSJiri Pirko default: 25833d249d4cSJiri Pirko BUG(); 25843d249d4cSJiri Pirko } 258580f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 25863d249d4cSJiri Pirko if (err) 25873d249d4cSJiri Pirko goto team_put; 25882fcdb2c9SJiri Pirko opt_inst->changed = true; 25894fb0534fSPaolo Abeni 25904fb0534fSPaolo Abeni /* dumb/evil user-space can send us duplicate opt, 25914fb0534fSPaolo Abeni * keep only the last one 25924fb0534fSPaolo Abeni */ 25934fb0534fSPaolo Abeni if (__team_option_inst_tmp_find(&opt_inst_list, 25944fb0534fSPaolo Abeni opt_inst)) 25954fb0534fSPaolo Abeni continue; 25964fb0534fSPaolo Abeni 25972fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 25983d249d4cSJiri Pirko } 25993d249d4cSJiri Pirko if (!opt_found) { 26003d249d4cSJiri Pirko err = -ENOENT; 26013d249d4cSJiri Pirko goto team_put; 26023d249d4cSJiri Pirko } 26033d249d4cSJiri Pirko } 26043d249d4cSJiri Pirko 26052fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 26062fcdb2c9SJiri Pirko 26073d249d4cSJiri Pirko team_put: 26083d249d4cSJiri Pirko team_nl_team_put(team); 26097d259505SJiri Pirko rtnl_unlock: 26107d259505SJiri Pirko rtnl_unlock(); 26113d249d4cSJiri Pirko return err; 26123d249d4cSJiri Pirko } 26133d249d4cSJiri Pirko 2614d90f889eSJiri Pirko static int team_nl_fill_one_port_get(struct sk_buff *skb, 2615d90f889eSJiri Pirko struct team_port *port) 2616d90f889eSJiri Pirko { 2617d90f889eSJiri Pirko struct nlattr *port_item; 2618d90f889eSJiri Pirko 2619d90f889eSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 2620d90f889eSJiri Pirko if (!port_item) 2621d90f889eSJiri Pirko goto nest_cancel; 2622d90f889eSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 2623d90f889eSJiri Pirko goto nest_cancel; 2624d90f889eSJiri Pirko if (port->changed) { 2625d90f889eSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 2626d90f889eSJiri Pirko goto nest_cancel; 2627d90f889eSJiri Pirko port->changed = false; 2628d90f889eSJiri Pirko } 2629d90f889eSJiri Pirko if ((port->removed && 2630d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 2631d90f889eSJiri Pirko (port->state.linkup && 2632d90f889eSJiri Pirko nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 2633d90f889eSJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 2634d90f889eSJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 2635d90f889eSJiri Pirko goto nest_cancel; 2636d90f889eSJiri Pirko nla_nest_end(skb, port_item); 2637d90f889eSJiri Pirko return 0; 2638d90f889eSJiri Pirko 2639d90f889eSJiri Pirko nest_cancel: 2640d90f889eSJiri Pirko nla_nest_cancel(skb, port_item); 2641d90f889eSJiri Pirko return -EMSGSIZE; 2642d90f889eSJiri Pirko } 2643d90f889eSJiri Pirko 2644d90f889eSJiri Pirko static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, 2645d90f889eSJiri Pirko int flags, team_nl_send_func_t *send_func, 2646d90f889eSJiri Pirko struct team_port *one_port) 26473d249d4cSJiri Pirko { 26483d249d4cSJiri Pirko struct nlattr *port_list; 2649d90f889eSJiri Pirko struct nlmsghdr *nlh; 26503d249d4cSJiri Pirko void *hdr; 26513d249d4cSJiri Pirko struct team_port *port; 2652d90f889eSJiri Pirko int err; 2653d90f889eSJiri Pirko struct sk_buff *skb = NULL; 2654d90f889eSJiri Pirko bool incomplete; 2655d90f889eSJiri Pirko int i; 26563d249d4cSJiri Pirko 26573f3e7ce4SJiri Pirko port = list_first_entry_or_null(&team->port_list, 26583f3e7ce4SJiri Pirko struct team_port, list); 2659d90f889eSJiri Pirko 2660d90f889eSJiri Pirko start_again: 2661d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2662d90f889eSJiri Pirko if (err) 2663d90f889eSJiri Pirko return err; 2664d90f889eSJiri Pirko 2665d90f889eSJiri Pirko hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, 26663d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 266772ec0bc6SPan Bian if (!hdr) { 266872ec0bc6SPan Bian nlmsg_free(skb); 2669a326e6ddSWei Yongjun return -EMSGSIZE; 267072ec0bc6SPan Bian } 26713d249d4cSJiri Pirko 267286ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 267386ebb02dSDavid S. Miller goto nla_put_failure; 26743d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 26753d249d4cSJiri Pirko if (!port_list) 26763221c646SJiri Pirko goto nla_put_failure; 26773d249d4cSJiri Pirko 2678d90f889eSJiri Pirko i = 0; 2679d90f889eSJiri Pirko incomplete = false; 26803d249d4cSJiri Pirko 2681d90f889eSJiri Pirko /* If one port is selected, called wants to send port list containing 2682d90f889eSJiri Pirko * only this port. Otherwise go through all listed ports and send all 2683d90f889eSJiri Pirko */ 2684d90f889eSJiri Pirko if (one_port) { 2685d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, one_port); 2686d90f889eSJiri Pirko if (err) 2687d90f889eSJiri Pirko goto errout; 26883f3e7ce4SJiri Pirko } else if (port) { 26893f3e7ce4SJiri Pirko list_for_each_entry_from(port, &team->port_list, list) { 2690d90f889eSJiri Pirko err = team_nl_fill_one_port_get(skb, port); 2691d90f889eSJiri Pirko if (err) { 2692d90f889eSJiri Pirko if (err == -EMSGSIZE) { 2693d90f889eSJiri Pirko if (!i) 2694d90f889eSJiri Pirko goto errout; 2695d90f889eSJiri Pirko incomplete = true; 2696d90f889eSJiri Pirko break; 2697b82b9183SJiri Pirko } 2698d90f889eSJiri Pirko goto errout; 2699d90f889eSJiri Pirko } 2700d90f889eSJiri Pirko i++; 2701d90f889eSJiri Pirko } 27023d249d4cSJiri Pirko } 27033d249d4cSJiri Pirko 27043d249d4cSJiri Pirko nla_nest_end(skb, port_list); 2705d90f889eSJiri Pirko genlmsg_end(skb, hdr); 2706d90f889eSJiri Pirko if (incomplete) 2707d90f889eSJiri Pirko goto start_again; 27083d249d4cSJiri Pirko 2709d90f889eSJiri Pirko send_done: 2710d90f889eSJiri Pirko nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 2711d90f889eSJiri Pirko if (!nlh) { 2712d90f889eSJiri Pirko err = __send_and_alloc_skb(&skb, team, portid, send_func); 2713d90f889eSJiri Pirko if (err) 2714cbcc607eSArkadi Sharshevsky return err; 2715d90f889eSJiri Pirko goto send_done; 27163d249d4cSJiri Pirko } 27173d249d4cSJiri Pirko 2718d90f889eSJiri Pirko return send_func(skb, team, portid); 2719d90f889eSJiri Pirko 2720d90f889eSJiri Pirko nla_put_failure: 2721d90f889eSJiri Pirko err = -EMSGSIZE; 2722d90f889eSJiri Pirko errout: 2723d90f889eSJiri Pirko nlmsg_free(skb); 2724d90f889eSJiri Pirko return err; 27253d249d4cSJiri Pirko } 27263d249d4cSJiri Pirko 27273d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 27283d249d4cSJiri Pirko struct genl_info *info) 27293d249d4cSJiri Pirko { 27303d249d4cSJiri Pirko struct team *team; 27313d249d4cSJiri Pirko int err; 27323d249d4cSJiri Pirko 27333d249d4cSJiri Pirko team = team_nl_team_get(info); 27343d249d4cSJiri Pirko if (!team) 27353d249d4cSJiri Pirko return -EINVAL; 27363d249d4cSJiri Pirko 2737d90f889eSJiri Pirko err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, 2738d90f889eSJiri Pirko NLM_F_ACK, team_nl_send_unicast, NULL); 27393d249d4cSJiri Pirko 27403d249d4cSJiri Pirko team_nl_team_put(team); 27413d249d4cSJiri Pirko 27423d249d4cSJiri Pirko return err; 27433d249d4cSJiri Pirko } 27443d249d4cSJiri Pirko 27454534de83SJohannes Berg static const struct genl_ops team_nl_ops[] = { 27463d249d4cSJiri Pirko { 27473d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 27483d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 27493d249d4cSJiri Pirko .policy = team_nl_policy, 27503d249d4cSJiri Pirko }, 27513d249d4cSJiri Pirko { 27523d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 27533d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 27543d249d4cSJiri Pirko .policy = team_nl_policy, 27553d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27563d249d4cSJiri Pirko }, 27573d249d4cSJiri Pirko { 27583d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 27593d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 27603d249d4cSJiri Pirko .policy = team_nl_policy, 27613d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27623d249d4cSJiri Pirko }, 27633d249d4cSJiri Pirko { 27643d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 27653d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 27663d249d4cSJiri Pirko .policy = team_nl_policy, 27673d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 27683d249d4cSJiri Pirko }, 27693d249d4cSJiri Pirko }; 27703d249d4cSJiri Pirko 27712a94fe48SJohannes Berg static const struct genl_multicast_group team_nl_mcgrps[] = { 27722a94fe48SJohannes Berg { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, 27733d249d4cSJiri Pirko }; 27743d249d4cSJiri Pirko 277556989f6dSJohannes Berg static struct genl_family team_nl_family __ro_after_init = { 2776489111e5SJohannes Berg .name = TEAM_GENL_NAME, 2777489111e5SJohannes Berg .version = TEAM_GENL_VERSION, 2778489111e5SJohannes Berg .maxattr = TEAM_ATTR_MAX, 2779489111e5SJohannes Berg .netnsok = true, 2780489111e5SJohannes Berg .module = THIS_MODULE, 2781489111e5SJohannes Berg .ops = team_nl_ops, 2782489111e5SJohannes Berg .n_ops = ARRAY_SIZE(team_nl_ops), 2783489111e5SJohannes Berg .mcgrps = team_nl_mcgrps, 2784489111e5SJohannes Berg .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps), 2785489111e5SJohannes Berg }; 2786489111e5SJohannes Berg 27879b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 278815e47304SEric W. Biederman struct team *team, u32 portid) 27899b00cf2dSJiri Pirko { 279068eb5503SJohannes Berg return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), 27912a94fe48SJohannes Berg skb, 0, 0, GFP_KERNEL); 27929b00cf2dSJiri Pirko } 27939b00cf2dSJiri Pirko 279401048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 279501048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 27963d249d4cSJiri Pirko { 27979b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 27989b00cf2dSJiri Pirko sel_opt_inst_list); 27993d249d4cSJiri Pirko } 28003d249d4cSJiri Pirko 2801d90f889eSJiri Pirko static int team_nl_send_event_port_get(struct team *team, 2802d90f889eSJiri Pirko struct team_port *port) 28033d249d4cSJiri Pirko { 2804d90f889eSJiri Pirko return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, 2805d90f889eSJiri Pirko port); 28063d249d4cSJiri Pirko } 28073d249d4cSJiri Pirko 280856989f6dSJohannes Berg static int __init team_nl_init(void) 28093d249d4cSJiri Pirko { 2810489111e5SJohannes Berg return genl_register_family(&team_nl_family); 28113d249d4cSJiri Pirko } 28123d249d4cSJiri Pirko 28133d249d4cSJiri Pirko static void team_nl_fini(void) 28143d249d4cSJiri Pirko { 28153d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 28163d249d4cSJiri Pirko } 28173d249d4cSJiri Pirko 28183d249d4cSJiri Pirko 28193d249d4cSJiri Pirko /****************** 28203d249d4cSJiri Pirko * Change checkers 28213d249d4cSJiri Pirko ******************/ 28223d249d4cSJiri Pirko 2823b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 28243d249d4cSJiri Pirko { 28253d249d4cSJiri Pirko int err; 282601048d9aSJiri Pirko struct team_option_inst *opt_inst; 282701048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 28283d249d4cSJiri Pirko 282901048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 283001048d9aSJiri Pirko if (opt_inst->changed) 283101048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 283201048d9aSJiri Pirko } 283301048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 28340c7517e9SJiri Pirko if (err && err != -ESRCH) 28359b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 28369b00cf2dSJiri Pirko err); 28373d249d4cSJiri Pirko } 28383d249d4cSJiri Pirko 28393d249d4cSJiri Pirko /* rtnl lock is held */ 284010f3f51dSJiri Pirko 284110f3f51dSJiri Pirko static void __team_port_change_send(struct team_port *port, bool linkup) 28423d249d4cSJiri Pirko { 28433d249d4cSJiri Pirko int err; 28443d249d4cSJiri Pirko 2845b82b9183SJiri Pirko port->changed = true; 284671472ec1SJiri Pirko port->state.linkup = linkup; 284771472ec1SJiri Pirko team_refresh_port_linkup(port); 28483d249d4cSJiri Pirko if (linkup) { 28490ab6b544SDavid Decotigny struct ethtool_link_ksettings ecmd; 28503d249d4cSJiri Pirko 28510ab6b544SDavid Decotigny err = __ethtool_get_link_ksettings(port->dev, &ecmd); 28523d249d4cSJiri Pirko if (!err) { 28530ab6b544SDavid Decotigny port->state.speed = ecmd.base.speed; 28540ab6b544SDavid Decotigny port->state.duplex = ecmd.base.duplex; 28553d249d4cSJiri Pirko goto send_event; 28563d249d4cSJiri Pirko } 28573d249d4cSJiri Pirko } 285871472ec1SJiri Pirko port->state.speed = 0; 285971472ec1SJiri Pirko port->state.duplex = 0; 28603d249d4cSJiri Pirko 28613d249d4cSJiri Pirko send_event: 2862d90f889eSJiri Pirko err = team_nl_send_event_port_get(port->team, port); 28630c7517e9SJiri Pirko if (err && err != -ESRCH) 28640c7517e9SJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", 28650c7517e9SJiri Pirko port->dev->name, err); 28663d249d4cSJiri Pirko 28673d249d4cSJiri Pirko } 28683d249d4cSJiri Pirko 286906a7fc42SFlavio Leitner static void __team_carrier_check(struct team *team) 287006a7fc42SFlavio Leitner { 287106a7fc42SFlavio Leitner struct team_port *port; 287206a7fc42SFlavio Leitner bool team_linkup; 287306a7fc42SFlavio Leitner 2874e185483eSFlavio Leitner if (team->user_carrier_enabled) 2875e185483eSFlavio Leitner return; 2876e185483eSFlavio Leitner 287706a7fc42SFlavio Leitner team_linkup = false; 287806a7fc42SFlavio Leitner list_for_each_entry(port, &team->port_list, list) { 287906a7fc42SFlavio Leitner if (port->linkup) { 288006a7fc42SFlavio Leitner team_linkup = true; 288106a7fc42SFlavio Leitner break; 288206a7fc42SFlavio Leitner } 288306a7fc42SFlavio Leitner } 288406a7fc42SFlavio Leitner 288506a7fc42SFlavio Leitner if (team_linkup) 288606a7fc42SFlavio Leitner netif_carrier_on(team->dev); 288706a7fc42SFlavio Leitner else 288806a7fc42SFlavio Leitner netif_carrier_off(team->dev); 288906a7fc42SFlavio Leitner } 289006a7fc42SFlavio Leitner 289110f3f51dSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 289210f3f51dSJiri Pirko { 289310f3f51dSJiri Pirko if (port->state.linkup != linkup) 289410f3f51dSJiri Pirko __team_port_change_send(port, linkup); 289506a7fc42SFlavio Leitner __team_carrier_check(port->team); 289610f3f51dSJiri Pirko } 289710f3f51dSJiri Pirko 289810f3f51dSJiri Pirko static void __team_port_change_port_added(struct team_port *port, bool linkup) 289910f3f51dSJiri Pirko { 290010f3f51dSJiri Pirko __team_port_change_send(port, linkup); 290106a7fc42SFlavio Leitner __team_carrier_check(port->team); 290210f3f51dSJiri Pirko } 290310f3f51dSJiri Pirko 290410f3f51dSJiri Pirko static void __team_port_change_port_removed(struct team_port *port) 290510f3f51dSJiri Pirko { 290610f3f51dSJiri Pirko port->removed = true; 290710f3f51dSJiri Pirko __team_port_change_send(port, false); 290806a7fc42SFlavio Leitner __team_carrier_check(port->team); 290910f3f51dSJiri Pirko } 291010f3f51dSJiri Pirko 29113d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 29123d249d4cSJiri Pirko { 29133d249d4cSJiri Pirko struct team *team = port->team; 29143d249d4cSJiri Pirko 291561dc3461SJiri Pirko mutex_lock(&team->lock); 29163d249d4cSJiri Pirko __team_port_change_check(port, linkup); 291761dc3461SJiri Pirko mutex_unlock(&team->lock); 29183d249d4cSJiri Pirko } 29193d249d4cSJiri Pirko 29200f1aad2bSJiri Pirko 29213d249d4cSJiri Pirko /************************************ 29223d249d4cSJiri Pirko * Net device notifier event handler 29233d249d4cSJiri Pirko ************************************/ 29243d249d4cSJiri Pirko 29253d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 29263d249d4cSJiri Pirko unsigned long event, void *ptr) 29273d249d4cSJiri Pirko { 2928351638e7SJiri Pirko struct net_device *dev = netdev_notifier_info_to_dev(ptr); 29293d249d4cSJiri Pirko struct team_port *port; 29303d249d4cSJiri Pirko 29313d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 29323d249d4cSJiri Pirko if (!port) 29333d249d4cSJiri Pirko return NOTIFY_DONE; 29343d249d4cSJiri Pirko 29353d249d4cSJiri Pirko switch (event) { 29363d249d4cSJiri Pirko case NETDEV_UP: 29373d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 29383d249d4cSJiri Pirko team_port_change_check(port, true); 2939ed2da03cSJiri Pirko break; 29403d249d4cSJiri Pirko case NETDEV_DOWN: 29413d249d4cSJiri Pirko team_port_change_check(port, false); 2942ed2da03cSJiri Pirko break; 29433d249d4cSJiri Pirko case NETDEV_CHANGE: 29443d249d4cSJiri Pirko if (netif_running(port->dev)) 29453d249d4cSJiri Pirko team_port_change_check(port, 2946f1d22a1eSGeorge Wilkie !!netif_oper_up(port->dev)); 29473d249d4cSJiri Pirko break; 29483d249d4cSJiri Pirko case NETDEV_UNREGISTER: 29493d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 29503d249d4cSJiri Pirko break; 29513d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 29523d249d4cSJiri Pirko team_compute_features(port->team); 29533d249d4cSJiri Pirko break; 2954b01f236cSVeaceslav Falico case NETDEV_PRECHANGEMTU: 29553d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 29569d0d68faSJiri Pirko if (!port->team->port_mtu_change_allowed) 29573d249d4cSJiri Pirko return NOTIFY_BAD; 29589d0d68faSJiri Pirko break; 29593d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 29603d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 29613d249d4cSJiri Pirko return NOTIFY_BAD; 29624aa5dee4SJiri Pirko case NETDEV_RESEND_IGMP: 29634aa5dee4SJiri Pirko /* Propagate to master device */ 29644aa5dee4SJiri Pirko call_netdevice_notifiers(event, port->team->dev); 29654aa5dee4SJiri Pirko break; 29663d249d4cSJiri Pirko } 29673d249d4cSJiri Pirko return NOTIFY_DONE; 29683d249d4cSJiri Pirko } 29693d249d4cSJiri Pirko 29703d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 29713d249d4cSJiri Pirko .notifier_call = team_device_event, 29723d249d4cSJiri Pirko }; 29733d249d4cSJiri Pirko 29743d249d4cSJiri Pirko 29753d249d4cSJiri Pirko /*********************** 29763d249d4cSJiri Pirko * Module init and exit 29773d249d4cSJiri Pirko ***********************/ 29783d249d4cSJiri Pirko 29793d249d4cSJiri Pirko static int __init team_module_init(void) 29803d249d4cSJiri Pirko { 29813d249d4cSJiri Pirko int err; 29823d249d4cSJiri Pirko 29833d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 29843d249d4cSJiri Pirko 29853d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 29863d249d4cSJiri Pirko if (err) 29873d249d4cSJiri Pirko goto err_rtnl_reg; 29883d249d4cSJiri Pirko 29893d249d4cSJiri Pirko err = team_nl_init(); 29903d249d4cSJiri Pirko if (err) 29913d249d4cSJiri Pirko goto err_nl_init; 29923d249d4cSJiri Pirko 29933d249d4cSJiri Pirko return 0; 29943d249d4cSJiri Pirko 29953d249d4cSJiri Pirko err_nl_init: 29963d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 29973d249d4cSJiri Pirko 29983d249d4cSJiri Pirko err_rtnl_reg: 29993d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 30003d249d4cSJiri Pirko 30013d249d4cSJiri Pirko return err; 30023d249d4cSJiri Pirko } 30033d249d4cSJiri Pirko 30043d249d4cSJiri Pirko static void __exit team_module_exit(void) 30053d249d4cSJiri Pirko { 30063d249d4cSJiri Pirko team_nl_fini(); 30073d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 30083d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 30093d249d4cSJiri Pirko } 30103d249d4cSJiri Pirko 30113d249d4cSJiri Pirko module_init(team_module_init); 30123d249d4cSJiri Pirko module_exit(team_module_exit); 30133d249d4cSJiri Pirko 30143d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 30153d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 30163d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 30173d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 3018