13d249d4cSJiri Pirko /* 20d572e45SJiri Pirko * drivers/net/team/team.c - Network team device driver 33d249d4cSJiri Pirko * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> 43d249d4cSJiri Pirko * 53d249d4cSJiri Pirko * This program is free software; you can redistribute it and/or modify 63d249d4cSJiri Pirko * it under the terms of the GNU General Public License as published by 73d249d4cSJiri Pirko * the Free Software Foundation; either version 2 of the License, or 83d249d4cSJiri Pirko * (at your option) any later version. 93d249d4cSJiri Pirko */ 103d249d4cSJiri Pirko 113d249d4cSJiri Pirko #include <linux/kernel.h> 123d249d4cSJiri Pirko #include <linux/types.h> 133d249d4cSJiri Pirko #include <linux/module.h> 143d249d4cSJiri Pirko #include <linux/init.h> 153d249d4cSJiri Pirko #include <linux/slab.h> 163d249d4cSJiri Pirko #include <linux/rcupdate.h> 173d249d4cSJiri Pirko #include <linux/errno.h> 183d249d4cSJiri Pirko #include <linux/ctype.h> 193d249d4cSJiri Pirko #include <linux/notifier.h> 203d249d4cSJiri Pirko #include <linux/netdevice.h> 21bd2d0837SJiri Pirko #include <linux/netpoll.h> 2287002b03SJiri Pirko #include <linux/if_vlan.h> 233d249d4cSJiri Pirko #include <linux/if_arp.h> 243d249d4cSJiri Pirko #include <linux/socket.h> 253d249d4cSJiri Pirko #include <linux/etherdevice.h> 263d249d4cSJiri Pirko #include <linux/rtnetlink.h> 273d249d4cSJiri Pirko #include <net/rtnetlink.h> 283d249d4cSJiri Pirko #include <net/genetlink.h> 293d249d4cSJiri Pirko #include <net/netlink.h> 306c85f2bdSJiri Pirko #include <net/sch_generic.h> 313d249d4cSJiri Pirko #include <linux/if_team.h> 323d249d4cSJiri Pirko 333d249d4cSJiri Pirko #define DRV_NAME "team" 343d249d4cSJiri Pirko 353d249d4cSJiri Pirko 363d249d4cSJiri Pirko /********** 373d249d4cSJiri Pirko * Helpers 383d249d4cSJiri Pirko **********/ 393d249d4cSJiri Pirko 403d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 413d249d4cSJiri Pirko 423d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 433d249d4cSJiri Pirko { 443d249d4cSJiri Pirko struct team_port *port = rcu_dereference(dev->rx_handler_data); 453d249d4cSJiri Pirko 463d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 473d249d4cSJiri Pirko } 483d249d4cSJiri Pirko 493d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 503d249d4cSJiri Pirko { 513d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 523d249d4cSJiri Pirko 533d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 543d249d4cSJiri Pirko } 553d249d4cSJiri Pirko 563d249d4cSJiri Pirko /* 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 { 633d249d4cSJiri Pirko struct sockaddr addr; 643d249d4cSJiri Pirko 651d76efe1SJiri Pirko memcpy(addr.sa_data, dev_addr, port_dev->addr_len); 661d76efe1SJiri Pirko addr.sa_family = port_dev->type; 673d249d4cSJiri Pirko return dev_set_mac_address(port_dev, &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 751d76efe1SJiri Pirko int team_port_set_team_dev_addr(struct team_port *port) 763d249d4cSJiri Pirko { 771d76efe1SJiri Pirko return __set_port_dev_addr(port->dev, port->team->dev->dev_addr); 783d249d4cSJiri Pirko } 791d76efe1SJiri Pirko EXPORT_SYMBOL(team_port_set_team_dev_addr); 803d249d4cSJiri Pirko 8171472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 8271472ec1SJiri Pirko { 8371472ec1SJiri Pirko port->linkup = port->user.linkup_enabled ? port->user.linkup : 8471472ec1SJiri Pirko port->state.linkup; 8571472ec1SJiri Pirko } 863d249d4cSJiri Pirko 870f1aad2bSJiri Pirko 883d249d4cSJiri Pirko /******************* 893d249d4cSJiri Pirko * Options handling 903d249d4cSJiri Pirko *******************/ 913d249d4cSJiri Pirko 9280f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 9380f7c668SJiri Pirko struct list_head list; 9401048d9aSJiri Pirko struct list_head tmp_list; 9580f7c668SJiri Pirko struct team_option *option; 9685d59a87SJiri Pirko struct team_option_inst_info info; 9780f7c668SJiri Pirko bool changed; 9880f7c668SJiri Pirko bool removed; 9980f7c668SJiri Pirko }; 10080f7c668SJiri Pirko 10180f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 10280f7c668SJiri Pirko const char *opt_name) 103358b8382SJiri Pirko { 104358b8382SJiri Pirko struct team_option *option; 105358b8382SJiri Pirko 106358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 107358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 108358b8382SJiri Pirko return option; 109358b8382SJiri Pirko } 110358b8382SJiri Pirko return NULL; 111358b8382SJiri Pirko } 112358b8382SJiri Pirko 11380f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 11480f7c668SJiri Pirko { 11580f7c668SJiri Pirko list_del(&opt_inst->list); 11680f7c668SJiri Pirko kfree(opt_inst); 11780f7c668SJiri Pirko } 11880f7c668SJiri Pirko 11980f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 12080f7c668SJiri Pirko struct team_option *option) 12180f7c668SJiri Pirko { 12280f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 12380f7c668SJiri Pirko 12480f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 12580f7c668SJiri Pirko if (opt_inst->option == option) 12680f7c668SJiri Pirko __team_option_inst_del(opt_inst); 12780f7c668SJiri Pirko } 12880f7c668SJiri Pirko } 12980f7c668SJiri Pirko 130b1303326SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 131b1303326SJiri Pirko struct team_port *port) 132b1303326SJiri Pirko { 133b1303326SJiri Pirko struct team_option_inst *opt_inst; 134b1303326SJiri Pirko unsigned int array_size; 135b1303326SJiri Pirko unsigned int i; 13685d59a87SJiri Pirko int err; 137b1303326SJiri Pirko 138b1303326SJiri Pirko array_size = option->array_size; 139b1303326SJiri Pirko if (!array_size) 140b1303326SJiri Pirko array_size = 1; /* No array but still need one instance */ 141b1303326SJiri Pirko 142b1303326SJiri Pirko for (i = 0; i < array_size; i++) { 143b1303326SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 144b1303326SJiri Pirko if (!opt_inst) 145b1303326SJiri Pirko return -ENOMEM; 146b1303326SJiri Pirko opt_inst->option = option; 14785d59a87SJiri Pirko opt_inst->info.port = port; 14885d59a87SJiri Pirko opt_inst->info.array_index = i; 149b1303326SJiri Pirko opt_inst->changed = true; 150b1303326SJiri Pirko opt_inst->removed = false; 151b1303326SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 15285d59a87SJiri Pirko if (option->init) { 15385d59a87SJiri Pirko err = option->init(team, &opt_inst->info); 15485d59a87SJiri Pirko if (err) 15585d59a87SJiri Pirko return err; 15685d59a87SJiri Pirko } 15785d59a87SJiri Pirko 158b1303326SJiri Pirko } 159b1303326SJiri Pirko return 0; 160b1303326SJiri Pirko } 161b1303326SJiri Pirko 16280f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 16380f7c668SJiri Pirko struct team_option *option) 16480f7c668SJiri Pirko { 16580f7c668SJiri Pirko struct team_port *port; 16680f7c668SJiri Pirko int err; 16780f7c668SJiri Pirko 168b1303326SJiri Pirko if (!option->per_port) { 169f88725ffSJiri Pirko err = __team_option_inst_add(team, option, NULL); 170b1303326SJiri Pirko if (err) 171b1303326SJiri Pirko goto inst_del_option; 172b1303326SJiri Pirko } 17380f7c668SJiri Pirko 17480f7c668SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17580f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 17680f7c668SJiri Pirko if (err) 17780f7c668SJiri Pirko goto inst_del_option; 17880f7c668SJiri Pirko } 17980f7c668SJiri Pirko return 0; 18080f7c668SJiri Pirko 18180f7c668SJiri Pirko inst_del_option: 18280f7c668SJiri Pirko __team_option_inst_del_option(team, option); 18380f7c668SJiri Pirko return err; 18480f7c668SJiri Pirko } 18580f7c668SJiri Pirko 18680f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 18780f7c668SJiri Pirko struct team_option *option) 18880f7c668SJiri Pirko { 18980f7c668SJiri Pirko struct team_option_inst *opt_inst; 19080f7c668SJiri Pirko 19180f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 19280f7c668SJiri Pirko if (opt_inst->option == option) { 19380f7c668SJiri Pirko opt_inst->changed = true; 19480f7c668SJiri Pirko opt_inst->removed = true; 19580f7c668SJiri Pirko } 19680f7c668SJiri Pirko } 19780f7c668SJiri Pirko } 19880f7c668SJiri Pirko 19980f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 20080f7c668SJiri Pirko struct team_port *port) 20180f7c668SJiri Pirko { 20280f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 20380f7c668SJiri Pirko 20480f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 20580f7c668SJiri Pirko if (opt_inst->option->per_port && 20685d59a87SJiri Pirko opt_inst->info.port == port) 20780f7c668SJiri Pirko __team_option_inst_del(opt_inst); 20880f7c668SJiri Pirko } 20980f7c668SJiri Pirko } 21080f7c668SJiri Pirko 21180f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 21280f7c668SJiri Pirko struct team_port *port) 21380f7c668SJiri Pirko { 21480f7c668SJiri Pirko struct team_option *option; 21580f7c668SJiri Pirko int err; 21680f7c668SJiri Pirko 21780f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 21880f7c668SJiri Pirko if (!option->per_port) 21980f7c668SJiri Pirko continue; 22080f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 22180f7c668SJiri Pirko if (err) 22280f7c668SJiri Pirko goto inst_del_port; 22380f7c668SJiri Pirko } 22480f7c668SJiri Pirko return 0; 22580f7c668SJiri Pirko 22680f7c668SJiri Pirko inst_del_port: 22780f7c668SJiri Pirko __team_option_inst_del_port(team, port); 22880f7c668SJiri Pirko return err; 22980f7c668SJiri Pirko } 23080f7c668SJiri Pirko 23180f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 23280f7c668SJiri Pirko struct team_port *port) 23380f7c668SJiri Pirko { 23480f7c668SJiri Pirko struct team_option_inst *opt_inst; 23580f7c668SJiri Pirko 23680f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 23785d59a87SJiri Pirko if (opt_inst->info.port == port) { 23880f7c668SJiri Pirko opt_inst->changed = true; 23980f7c668SJiri Pirko opt_inst->removed = true; 24080f7c668SJiri Pirko } 24180f7c668SJiri Pirko } 24280f7c668SJiri Pirko } 24380f7c668SJiri Pirko 24480f7c668SJiri Pirko static int __team_options_register(struct team *team, 245358b8382SJiri Pirko const struct team_option *option, 2463d249d4cSJiri Pirko size_t option_count) 2473d249d4cSJiri Pirko { 2483d249d4cSJiri Pirko int i; 2492bba19ffSJiri Pirko struct team_option **dst_opts; 250358b8382SJiri Pirko int err; 2513d249d4cSJiri Pirko 2522bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2532bba19ffSJiri Pirko GFP_KERNEL); 2542bba19ffSJiri Pirko if (!dst_opts) 2552bba19ffSJiri Pirko return -ENOMEM; 256358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 257358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 258358b8382SJiri Pirko err = -EEXIST; 25980f7c668SJiri Pirko goto alloc_rollback; 2603d249d4cSJiri Pirko } 261f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 262f8a15af0SJiri Pirko if (!dst_opts[i]) { 263358b8382SJiri Pirko err = -ENOMEM; 26480f7c668SJiri Pirko goto alloc_rollback; 265358b8382SJiri Pirko } 266358b8382SJiri Pirko } 267358b8382SJiri Pirko 268b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 26980f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 27080f7c668SJiri Pirko if (err) 27180f7c668SJiri Pirko goto inst_rollback; 272358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 273b82b9183SJiri Pirko } 274358b8382SJiri Pirko 2752bba19ffSJiri Pirko kfree(dst_opts); 276358b8382SJiri Pirko return 0; 277358b8382SJiri Pirko 27880f7c668SJiri Pirko inst_rollback: 27980f7c668SJiri Pirko for (i--; i >= 0; i--) 28080f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 28180f7c668SJiri Pirko 28280f7c668SJiri Pirko i = option_count - 1; 28380f7c668SJiri Pirko alloc_rollback: 28480f7c668SJiri Pirko for (i--; i >= 0; i--) 285358b8382SJiri Pirko kfree(dst_opts[i]); 286358b8382SJiri Pirko 2872bba19ffSJiri Pirko kfree(dst_opts); 288358b8382SJiri Pirko return err; 289358b8382SJiri Pirko } 290358b8382SJiri Pirko 291b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 292b82b9183SJiri Pirko const struct team_option *option, 293b82b9183SJiri Pirko size_t option_count) 294b82b9183SJiri Pirko { 295b82b9183SJiri Pirko int i; 2963d249d4cSJiri Pirko 297b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 298b82b9183SJiri Pirko struct team_option *del_opt; 299b82b9183SJiri Pirko 300b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 30180f7c668SJiri Pirko if (del_opt) 30280f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 303b82b9183SJiri Pirko } 304b82b9183SJiri Pirko } 3053d249d4cSJiri Pirko 3063d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 307358b8382SJiri Pirko const struct team_option *option, 3083d249d4cSJiri Pirko size_t option_count) 3093d249d4cSJiri Pirko { 3103d249d4cSJiri Pirko int i; 3113d249d4cSJiri Pirko 312358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 313358b8382SJiri Pirko struct team_option *del_opt; 314358b8382SJiri Pirko 315358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 316358b8382SJiri Pirko if (del_opt) { 31780f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 318358b8382SJiri Pirko list_del(&del_opt->list); 319358b8382SJiri Pirko kfree(del_opt); 320358b8382SJiri Pirko } 321358b8382SJiri Pirko } 3223d249d4cSJiri Pirko } 3233d249d4cSJiri Pirko 324b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 325b82b9183SJiri Pirko 326b82b9183SJiri Pirko int team_options_register(struct team *team, 327b82b9183SJiri Pirko const struct team_option *option, 328b82b9183SJiri Pirko size_t option_count) 329b82b9183SJiri Pirko { 330b82b9183SJiri Pirko int err; 331b82b9183SJiri Pirko 332b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 333b82b9183SJiri Pirko if (err) 334b82b9183SJiri Pirko return err; 335b82b9183SJiri Pirko __team_options_change_check(team); 336b82b9183SJiri Pirko return 0; 337b82b9183SJiri Pirko } 338b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 339b82b9183SJiri Pirko 340358b8382SJiri Pirko void team_options_unregister(struct team *team, 341358b8382SJiri Pirko const struct team_option *option, 3423d249d4cSJiri Pirko size_t option_count) 3433d249d4cSJiri Pirko { 344b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 345b82b9183SJiri Pirko __team_options_change_check(team); 3463d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3473d249d4cSJiri Pirko } 3483d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3493d249d4cSJiri Pirko 35080f7c668SJiri Pirko static int team_option_get(struct team *team, 35180f7c668SJiri Pirko struct team_option_inst *opt_inst, 35280f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 35380f7c668SJiri Pirko { 354f82b959dSJiri Pirko if (!opt_inst->option->getter) 355f82b959dSJiri Pirko return -EOPNOTSUPP; 35680f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 35780f7c668SJiri Pirko } 35880f7c668SJiri Pirko 35980f7c668SJiri Pirko static int team_option_set(struct team *team, 36080f7c668SJiri Pirko struct team_option_inst *opt_inst, 36180f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 36280f7c668SJiri Pirko { 363f82b959dSJiri Pirko if (!opt_inst->option->setter) 364f82b959dSJiri Pirko return -EOPNOTSUPP; 3652fcdb2c9SJiri Pirko return opt_inst->option->setter(team, ctx); 3663d249d4cSJiri Pirko } 3673d249d4cSJiri Pirko 3680f1aad2bSJiri Pirko void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) 3690f1aad2bSJiri Pirko { 3700f1aad2bSJiri Pirko struct team_option_inst *opt_inst; 3710f1aad2bSJiri Pirko 3720f1aad2bSJiri Pirko opt_inst = container_of(opt_inst_info, struct team_option_inst, info); 3730f1aad2bSJiri Pirko opt_inst->changed = true; 3740f1aad2bSJiri Pirko } 3750f1aad2bSJiri Pirko EXPORT_SYMBOL(team_option_inst_set_change); 3760f1aad2bSJiri Pirko 3770f1aad2bSJiri Pirko void team_options_change_check(struct team *team) 3780f1aad2bSJiri Pirko { 3790f1aad2bSJiri Pirko __team_options_change_check(team); 3800f1aad2bSJiri Pirko } 3810f1aad2bSJiri Pirko EXPORT_SYMBOL(team_options_change_check); 3820f1aad2bSJiri Pirko 3830f1aad2bSJiri Pirko 3843d249d4cSJiri Pirko /**************** 3853d249d4cSJiri Pirko * Mode handling 3863d249d4cSJiri Pirko ****************/ 3873d249d4cSJiri Pirko 3883d249d4cSJiri Pirko static LIST_HEAD(mode_list); 3893d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 3903d249d4cSJiri Pirko 3910402788aSJiri Pirko struct team_mode_item { 3920402788aSJiri Pirko struct list_head list; 3930402788aSJiri Pirko const struct team_mode *mode; 3940402788aSJiri Pirko }; 3953d249d4cSJiri Pirko 3960402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 3970402788aSJiri Pirko { 3980402788aSJiri Pirko struct team_mode_item *mitem; 3990402788aSJiri Pirko 4000402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 4010402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 4020402788aSJiri Pirko return mitem; 4033d249d4cSJiri Pirko } 4043d249d4cSJiri Pirko return NULL; 4053d249d4cSJiri Pirko } 4063d249d4cSJiri Pirko 4073d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 4083d249d4cSJiri Pirko { 4093d249d4cSJiri Pirko while (*name != '\0') { 4103d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 4113d249d4cSJiri Pirko return false; 4123d249d4cSJiri Pirko name++; 4133d249d4cSJiri Pirko } 4143d249d4cSJiri Pirko return true; 4153d249d4cSJiri Pirko } 4163d249d4cSJiri Pirko 4170402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4183d249d4cSJiri Pirko { 4193d249d4cSJiri Pirko int err = 0; 4200402788aSJiri Pirko struct team_mode_item *mitem; 4213d249d4cSJiri Pirko 4223d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4233d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4243d249d4cSJiri Pirko return -EINVAL; 4250402788aSJiri Pirko 4260402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4270402788aSJiri Pirko if (!mitem) 4280402788aSJiri Pirko return -ENOMEM; 4290402788aSJiri Pirko 4303d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4313d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4323d249d4cSJiri Pirko err = -EEXIST; 4330402788aSJiri Pirko kfree(mitem); 4343d249d4cSJiri Pirko goto unlock; 4353d249d4cSJiri Pirko } 4360402788aSJiri Pirko mitem->mode = mode; 4370402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4383d249d4cSJiri Pirko unlock: 4393d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4403d249d4cSJiri Pirko return err; 4413d249d4cSJiri Pirko } 4423d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4433d249d4cSJiri Pirko 4440402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4453d249d4cSJiri Pirko { 4460402788aSJiri Pirko struct team_mode_item *mitem; 4470402788aSJiri Pirko 4483d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4490402788aSJiri Pirko mitem = __find_mode(mode->kind); 4500402788aSJiri Pirko if (mitem) { 4510402788aSJiri Pirko list_del_init(&mitem->list); 4520402788aSJiri Pirko kfree(mitem); 4530402788aSJiri Pirko } 4543d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4553d249d4cSJiri Pirko } 4563d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4573d249d4cSJiri Pirko 4580402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4593d249d4cSJiri Pirko { 4600402788aSJiri Pirko struct team_mode_item *mitem; 4610402788aSJiri Pirko const struct team_mode *mode = NULL; 4623d249d4cSJiri Pirko 4633d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4640402788aSJiri Pirko mitem = __find_mode(kind); 4650402788aSJiri Pirko if (!mitem) { 4663d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4673d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4683d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4690402788aSJiri Pirko mitem = __find_mode(kind); 4703d249d4cSJiri Pirko } 4710402788aSJiri Pirko if (mitem) { 4720402788aSJiri Pirko mode = mitem->mode; 4733d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4743d249d4cSJiri Pirko mode = NULL; 4750402788aSJiri Pirko } 4763d249d4cSJiri Pirko 4773d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4783d249d4cSJiri Pirko return mode; 4793d249d4cSJiri Pirko } 4803d249d4cSJiri Pirko 4813d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 4823d249d4cSJiri Pirko { 4833d249d4cSJiri Pirko module_put(mode->owner); 4843d249d4cSJiri Pirko } 4853d249d4cSJiri Pirko 4863d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 4873d249d4cSJiri Pirko { 4883d249d4cSJiri Pirko dev_kfree_skb_any(skb); 4893d249d4cSJiri Pirko return false; 4903d249d4cSJiri Pirko } 4913d249d4cSJiri Pirko 4923d249d4cSJiri Pirko rx_handler_result_t team_dummy_receive(struct team *team, 4933d249d4cSJiri Pirko struct team_port *port, 4943d249d4cSJiri Pirko struct sk_buff *skb) 4953d249d4cSJiri Pirko { 4963d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 4973d249d4cSJiri Pirko } 4983d249d4cSJiri Pirko 499d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 500d299cd51SJiri Pirko .kind = "*NOMODE*", 501d299cd51SJiri Pirko }; 502d299cd51SJiri Pirko 503d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 504d299cd51SJiri Pirko { 505d299cd51SJiri Pirko return team->mode != &__team_no_mode; 506d299cd51SJiri Pirko } 507d299cd51SJiri Pirko 508d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 509d299cd51SJiri Pirko { 510d299cd51SJiri Pirko team->mode = &__team_no_mode; 511d299cd51SJiri Pirko } 512d299cd51SJiri Pirko 513122bb046SJiri Pirko static void __team_adjust_ops(struct team *team, int en_port_count) 5143d249d4cSJiri Pirko { 5153d249d4cSJiri Pirko /* 5163d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5173d249d4cSJiri Pirko * correct ops are always set. 5183d249d4cSJiri Pirko */ 5193d249d4cSJiri Pirko 520122bb046SJiri Pirko if (!en_port_count || !team_is_mode_set(team) || 521122bb046SJiri Pirko !team->mode->ops->transmit) 5223d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5233d249d4cSJiri Pirko else 5243d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5253d249d4cSJiri Pirko 526122bb046SJiri Pirko if (!en_port_count || !team_is_mode_set(team) || 527122bb046SJiri Pirko !team->mode->ops->receive) 5283d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5293d249d4cSJiri Pirko else 5303d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5313d249d4cSJiri Pirko } 5323d249d4cSJiri Pirko 533122bb046SJiri Pirko static void team_adjust_ops(struct team *team) 534122bb046SJiri Pirko { 535122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count); 536122bb046SJiri Pirko } 537122bb046SJiri Pirko 5383d249d4cSJiri Pirko /* 5393d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5403d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5413d249d4cSJiri Pirko * need to set mode operations in any special way. 5423d249d4cSJiri Pirko */ 5433d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5443d249d4cSJiri Pirko const struct team_mode *new_mode) 5453d249d4cSJiri Pirko { 5463d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 547d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5483d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5493d249d4cSJiri Pirko 5503d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5513d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5523d249d4cSJiri Pirko team_adjust_ops(team); 5533d249d4cSJiri Pirko 5543d249d4cSJiri Pirko if (exit_op) 5553d249d4cSJiri Pirko exit_op(team); 5563d249d4cSJiri Pirko team_mode_put(team->mode); 557d299cd51SJiri Pirko team_set_no_mode(team); 5583d249d4cSJiri Pirko /* zero private data area */ 5593d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5603d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5613d249d4cSJiri Pirko } 5623d249d4cSJiri Pirko 5633d249d4cSJiri Pirko if (!new_mode) 5643d249d4cSJiri Pirko return 0; 5653d249d4cSJiri Pirko 5663d249d4cSJiri Pirko if (new_mode->ops->init) { 5673d249d4cSJiri Pirko int err; 5683d249d4cSJiri Pirko 5693d249d4cSJiri Pirko err = new_mode->ops->init(team); 5703d249d4cSJiri Pirko if (err) 5713d249d4cSJiri Pirko return err; 5723d249d4cSJiri Pirko } 5733d249d4cSJiri Pirko 5743d249d4cSJiri Pirko team->mode = new_mode; 5753d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5763d249d4cSJiri Pirko team_adjust_ops(team); 5773d249d4cSJiri Pirko 5783d249d4cSJiri Pirko return 0; 5793d249d4cSJiri Pirko } 5803d249d4cSJiri Pirko 5813d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5823d249d4cSJiri Pirko { 5830402788aSJiri Pirko const struct team_mode *new_mode; 5843d249d4cSJiri Pirko struct net_device *dev = team->dev; 5853d249d4cSJiri Pirko int err; 5863d249d4cSJiri Pirko 5873d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 5883d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 5893d249d4cSJiri Pirko return -EBUSY; 5903d249d4cSJiri Pirko } 5913d249d4cSJiri Pirko 592d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 5933d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 5943d249d4cSJiri Pirko return -EINVAL; 5953d249d4cSJiri Pirko } 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko new_mode = team_mode_get(kind); 5983d249d4cSJiri Pirko if (!new_mode) { 5993d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 6003d249d4cSJiri Pirko return -EINVAL; 6013d249d4cSJiri Pirko } 6023d249d4cSJiri Pirko 6033d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 6043d249d4cSJiri Pirko if (err) { 6053d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 6063d249d4cSJiri Pirko team_mode_put(new_mode); 6073d249d4cSJiri Pirko return err; 6083d249d4cSJiri Pirko } 6093d249d4cSJiri Pirko 6103d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 6113d249d4cSJiri Pirko return 0; 6123d249d4cSJiri Pirko } 6133d249d4cSJiri Pirko 6143d249d4cSJiri Pirko 6153d249d4cSJiri Pirko /************************ 6163d249d4cSJiri Pirko * Rx path frame handler 6173d249d4cSJiri Pirko ************************/ 6183d249d4cSJiri Pirko 6193d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 6203d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 6213d249d4cSJiri Pirko { 6223d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 6233d249d4cSJiri Pirko struct team_port *port; 6243d249d4cSJiri Pirko struct team *team; 6253d249d4cSJiri Pirko rx_handler_result_t res; 6263d249d4cSJiri Pirko 6273d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 6283d249d4cSJiri Pirko if (!skb) 6293d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 6303d249d4cSJiri Pirko 6313d249d4cSJiri Pirko *pskb = skb; 6323d249d4cSJiri Pirko 6333d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 6343d249d4cSJiri Pirko team = port->team; 63519a0b58eSJiri Pirko if (!team_port_enabled(port)) { 63619a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 63719a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 63819a0b58eSJiri Pirko } else { 6393d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 64019a0b58eSJiri Pirko } 6413d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 6423d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 6433d249d4cSJiri Pirko 6443d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 6453d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 6463d249d4cSJiri Pirko pcpu_stats->rx_packets++; 6473d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 6483d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 6493d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 6503d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 6513d249d4cSJiri Pirko 6523d249d4cSJiri Pirko skb->dev = team->dev; 6533d249d4cSJiri Pirko } else { 6543d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 6553d249d4cSJiri Pirko } 6563d249d4cSJiri Pirko 6573d249d4cSJiri Pirko return res; 6583d249d4cSJiri Pirko } 6593d249d4cSJiri Pirko 6603d249d4cSJiri Pirko 6618ff5105aSJiri Pirko /************************************* 6628ff5105aSJiri Pirko * Multiqueue Tx port select override 6638ff5105aSJiri Pirko *************************************/ 6648ff5105aSJiri Pirko 6658ff5105aSJiri Pirko static int team_queue_override_init(struct team *team) 6668ff5105aSJiri Pirko { 6678ff5105aSJiri Pirko struct list_head *listarr; 6688ff5105aSJiri Pirko unsigned int queue_cnt = team->dev->num_tx_queues - 1; 6698ff5105aSJiri Pirko unsigned int i; 6708ff5105aSJiri Pirko 6718ff5105aSJiri Pirko if (!queue_cnt) 6728ff5105aSJiri Pirko return 0; 6738ff5105aSJiri Pirko listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); 6748ff5105aSJiri Pirko if (!listarr) 6758ff5105aSJiri Pirko return -ENOMEM; 6768ff5105aSJiri Pirko team->qom_lists = listarr; 6778ff5105aSJiri Pirko for (i = 0; i < queue_cnt; i++) 6788ff5105aSJiri Pirko INIT_LIST_HEAD(listarr++); 6798ff5105aSJiri Pirko return 0; 6808ff5105aSJiri Pirko } 6818ff5105aSJiri Pirko 6828ff5105aSJiri Pirko static void team_queue_override_fini(struct team *team) 6838ff5105aSJiri Pirko { 6848ff5105aSJiri Pirko kfree(team->qom_lists); 6858ff5105aSJiri Pirko } 6868ff5105aSJiri Pirko 6878ff5105aSJiri Pirko static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) 6888ff5105aSJiri Pirko { 6898ff5105aSJiri Pirko return &team->qom_lists[queue_id - 1]; 6908ff5105aSJiri Pirko } 6918ff5105aSJiri Pirko 6928ff5105aSJiri Pirko /* 6938ff5105aSJiri Pirko * note: already called with rcu_read_lock 6948ff5105aSJiri Pirko */ 6958ff5105aSJiri Pirko static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) 6968ff5105aSJiri Pirko { 6978ff5105aSJiri Pirko struct list_head *qom_list; 6988ff5105aSJiri Pirko struct team_port *port; 6998ff5105aSJiri Pirko 7008ff5105aSJiri Pirko if (!team->queue_override_enabled || !skb->queue_mapping) 7018ff5105aSJiri Pirko return false; 7028ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, skb->queue_mapping); 7038ff5105aSJiri Pirko list_for_each_entry_rcu(port, qom_list, qom_list) { 7048ff5105aSJiri Pirko if (!team_dev_queue_xmit(team, port, skb)) 7058ff5105aSJiri Pirko return true; 7068ff5105aSJiri Pirko } 7078ff5105aSJiri Pirko return false; 7088ff5105aSJiri Pirko } 7098ff5105aSJiri Pirko 7108ff5105aSJiri Pirko static void __team_queue_override_port_del(struct team *team, 7118ff5105aSJiri Pirko struct team_port *port) 7128ff5105aSJiri Pirko { 7138ff5105aSJiri Pirko list_del_rcu(&port->qom_list); 7148ff5105aSJiri Pirko synchronize_rcu(); 7158ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 7168ff5105aSJiri Pirko } 7178ff5105aSJiri Pirko 7188ff5105aSJiri Pirko static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, 7198ff5105aSJiri Pirko struct team_port *cur) 7208ff5105aSJiri Pirko { 7218ff5105aSJiri Pirko if (port->priority < cur->priority) 7228ff5105aSJiri Pirko return true; 7238ff5105aSJiri Pirko if (port->priority > cur->priority) 7248ff5105aSJiri Pirko return false; 7258ff5105aSJiri Pirko if (port->index < cur->index) 7268ff5105aSJiri Pirko return true; 7278ff5105aSJiri Pirko return false; 7288ff5105aSJiri Pirko } 7298ff5105aSJiri Pirko 7308ff5105aSJiri Pirko static void __team_queue_override_port_add(struct team *team, 7318ff5105aSJiri Pirko struct team_port *port) 7328ff5105aSJiri Pirko { 7338ff5105aSJiri Pirko struct team_port *cur; 7348ff5105aSJiri Pirko struct list_head *qom_list; 7358ff5105aSJiri Pirko struct list_head *node; 7368ff5105aSJiri Pirko 7378ff5105aSJiri Pirko if (!port->queue_id || !team_port_enabled(port)) 7388ff5105aSJiri Pirko return; 7398ff5105aSJiri Pirko 7408ff5105aSJiri Pirko qom_list = __team_get_qom_list(team, port->queue_id); 7418ff5105aSJiri Pirko node = qom_list; 7428ff5105aSJiri Pirko list_for_each_entry(cur, qom_list, qom_list) { 7438ff5105aSJiri Pirko if (team_queue_override_port_has_gt_prio_than(port, cur)) 7448ff5105aSJiri Pirko break; 7458ff5105aSJiri Pirko node = &cur->qom_list; 7468ff5105aSJiri Pirko } 7478ff5105aSJiri Pirko list_add_tail_rcu(&port->qom_list, node); 7488ff5105aSJiri Pirko } 7498ff5105aSJiri Pirko 7508ff5105aSJiri Pirko static void __team_queue_override_enabled_check(struct team *team) 7518ff5105aSJiri Pirko { 7528ff5105aSJiri Pirko struct team_port *port; 7538ff5105aSJiri Pirko bool enabled = false; 7548ff5105aSJiri Pirko 7558ff5105aSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 7568ff5105aSJiri Pirko if (!list_empty(&port->qom_list)) { 7578ff5105aSJiri Pirko enabled = true; 7588ff5105aSJiri Pirko break; 7598ff5105aSJiri Pirko } 7608ff5105aSJiri Pirko } 7618ff5105aSJiri Pirko if (enabled == team->queue_override_enabled) 7628ff5105aSJiri Pirko return; 7638ff5105aSJiri Pirko netdev_dbg(team->dev, "%s queue override\n", 7648ff5105aSJiri Pirko enabled ? "Enabling" : "Disabling"); 7658ff5105aSJiri Pirko team->queue_override_enabled = enabled; 7668ff5105aSJiri Pirko } 7678ff5105aSJiri Pirko 7688ff5105aSJiri Pirko static void team_queue_override_port_refresh(struct team *team, 7698ff5105aSJiri Pirko struct team_port *port) 7708ff5105aSJiri Pirko { 7718ff5105aSJiri Pirko __team_queue_override_port_del(team, port); 7728ff5105aSJiri Pirko __team_queue_override_port_add(team, port); 7738ff5105aSJiri Pirko __team_queue_override_enabled_check(team); 7748ff5105aSJiri Pirko } 7758ff5105aSJiri Pirko 7768ff5105aSJiri Pirko 7773d249d4cSJiri Pirko /**************** 7783d249d4cSJiri Pirko * Port handling 7793d249d4cSJiri Pirko ****************/ 7803d249d4cSJiri Pirko 7813d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 7823d249d4cSJiri Pirko const struct team_port *port) 7833d249d4cSJiri Pirko { 7843d249d4cSJiri Pirko struct team_port *cur; 7853d249d4cSJiri Pirko 7863d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 7873d249d4cSJiri Pirko if (cur == port) 7883d249d4cSJiri Pirko return true; 7893d249d4cSJiri Pirko return false; 7903d249d4cSJiri Pirko } 7913d249d4cSJiri Pirko 7923d249d4cSJiri Pirko /* 79319a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 79419a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 79519a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 79619a0b58eSJiri Pirko * by team->lock. 7973d249d4cSJiri Pirko */ 79819a0b58eSJiri Pirko static void team_port_enable(struct team *team, 7993d249d4cSJiri Pirko struct team_port *port) 8003d249d4cSJiri Pirko { 80119a0b58eSJiri Pirko if (team_port_enabled(port)) 80219a0b58eSJiri Pirko return; 80319a0b58eSJiri Pirko port->index = team->en_port_count++; 8043d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 8053d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 806122bb046SJiri Pirko team_adjust_ops(team); 8078ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 8084bccfd17SJiri Pirko if (team->ops.port_enabled) 8094bccfd17SJiri Pirko team->ops.port_enabled(team, port); 8103d249d4cSJiri Pirko } 8113d249d4cSJiri Pirko 8123d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 8133d249d4cSJiri Pirko { 8143d249d4cSJiri Pirko int i; 8153d249d4cSJiri Pirko struct team_port *port; 8163d249d4cSJiri Pirko 81719a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 8183d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 8193d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 8203d249d4cSJiri Pirko port->index--; 8213d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 8223d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 8233d249d4cSJiri Pirko } 8243d249d4cSJiri Pirko } 8253d249d4cSJiri Pirko 82619a0b58eSJiri Pirko static void team_port_disable(struct team *team, 8273d249d4cSJiri Pirko struct team_port *port) 8283d249d4cSJiri Pirko { 82919a0b58eSJiri Pirko if (!team_port_enabled(port)) 83019a0b58eSJiri Pirko return; 8314bccfd17SJiri Pirko if (team->ops.port_disabled) 8324bccfd17SJiri Pirko team->ops.port_disabled(team, port); 8333d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 834122bb046SJiri Pirko __reconstruct_port_hlist(team, port->index); 83519a0b58eSJiri Pirko port->index = -1; 8368ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 837122bb046SJiri Pirko __team_adjust_ops(team, team->en_port_count - 1); 838122bb046SJiri Pirko /* 839122bb046SJiri Pirko * Wait until readers see adjusted ops. This ensures that 840122bb046SJiri Pirko * readers never see team->en_port_count == 0 841122bb046SJiri Pirko */ 842122bb046SJiri Pirko synchronize_rcu(); 843122bb046SJiri Pirko team->en_port_count--; 8443d249d4cSJiri Pirko } 8453d249d4cSJiri Pirko 8463d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 8473d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 8483d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 8493d249d4cSJiri Pirko 8503d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 8513d249d4cSJiri Pirko { 8523d249d4cSJiri Pirko struct team_port *port; 8533d249d4cSJiri Pirko u32 vlan_features = TEAM_VLAN_FEATURES; 8543d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 855dc905951SJiri Pirko unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; 8563d249d4cSJiri Pirko 8573d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 8583d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 8593d249d4cSJiri Pirko port->dev->vlan_features, 8603d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 8613d249d4cSJiri Pirko 862dc905951SJiri Pirko dst_release_flag &= port->dev->priv_flags; 8633d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 8643d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 8653d249d4cSJiri Pirko } 8663d249d4cSJiri Pirko 8673d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 8683d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 8693d249d4cSJiri Pirko 870dc905951SJiri Pirko flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; 871dc905951SJiri Pirko team->dev->priv_flags = flags | dst_release_flag; 872dc905951SJiri Pirko 8733d249d4cSJiri Pirko netdev_change_features(team->dev); 8743d249d4cSJiri Pirko } 8753d249d4cSJiri Pirko 8763d249d4cSJiri Pirko static void team_compute_features(struct team *team) 8773d249d4cSJiri Pirko { 87861dc3461SJiri Pirko mutex_lock(&team->lock); 8793d249d4cSJiri Pirko __team_compute_features(team); 88061dc3461SJiri Pirko mutex_unlock(&team->lock); 8813d249d4cSJiri Pirko } 8823d249d4cSJiri Pirko 8833d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 8843d249d4cSJiri Pirko { 8853d249d4cSJiri Pirko int err = 0; 8863d249d4cSJiri Pirko 8873d249d4cSJiri Pirko dev_hold(team->dev); 8883d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 8893d249d4cSJiri Pirko if (team->ops.port_enter) { 8903d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 8913d249d4cSJiri Pirko if (err) { 8923d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 8933d249d4cSJiri Pirko port->dev->name); 8943d249d4cSJiri Pirko goto err_port_enter; 8953d249d4cSJiri Pirko } 8963d249d4cSJiri Pirko } 8973d249d4cSJiri Pirko 8983d249d4cSJiri Pirko return 0; 8993d249d4cSJiri Pirko 9003d249d4cSJiri Pirko err_port_enter: 9013d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 9023d249d4cSJiri Pirko dev_put(team->dev); 9033d249d4cSJiri Pirko 9043d249d4cSJiri Pirko return err; 9053d249d4cSJiri Pirko } 9063d249d4cSJiri Pirko 9073d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 9083d249d4cSJiri Pirko { 9093d249d4cSJiri Pirko if (team->ops.port_leave) 9103d249d4cSJiri Pirko team->ops.port_leave(team, port); 9113d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 9123d249d4cSJiri Pirko dev_put(team->dev); 9133d249d4cSJiri Pirko } 9143d249d4cSJiri Pirko 915bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 91647be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 91747be03a2SAmerigo Wang gfp_t gfp) 918bd2d0837SJiri Pirko { 919bd2d0837SJiri Pirko struct netpoll *np; 920bd2d0837SJiri Pirko int err; 921bd2d0837SJiri Pirko 92247be03a2SAmerigo Wang np = kzalloc(sizeof(*np), gfp); 923bd2d0837SJiri Pirko if (!np) 924bd2d0837SJiri Pirko return -ENOMEM; 925bd2d0837SJiri Pirko 92647be03a2SAmerigo Wang err = __netpoll_setup(np, port->dev, gfp); 927bd2d0837SJiri Pirko if (err) { 928bd2d0837SJiri Pirko kfree(np); 929bd2d0837SJiri Pirko return err; 930bd2d0837SJiri Pirko } 931bd2d0837SJiri Pirko port->np = np; 932bd2d0837SJiri Pirko return err; 933bd2d0837SJiri Pirko } 934bd2d0837SJiri Pirko 935bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 936bd2d0837SJiri Pirko { 937bd2d0837SJiri Pirko struct netpoll *np = port->np; 938bd2d0837SJiri Pirko 939bd2d0837SJiri Pirko if (!np) 940bd2d0837SJiri Pirko return; 941bd2d0837SJiri Pirko port->np = NULL; 942bd2d0837SJiri Pirko 943bd2d0837SJiri Pirko /* Wait for transmitting packets to finish before freeing. */ 944bd2d0837SJiri Pirko synchronize_rcu_bh(); 945bd2d0837SJiri Pirko __netpoll_cleanup(np); 946bd2d0837SJiri Pirko kfree(np); 947bd2d0837SJiri Pirko } 948bd2d0837SJiri Pirko 949bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 950bd2d0837SJiri Pirko { 951bd2d0837SJiri Pirko return team->dev->npinfo; 952bd2d0837SJiri Pirko } 953bd2d0837SJiri Pirko 954bd2d0837SJiri Pirko #else 95547be03a2SAmerigo Wang static int team_port_enable_netpoll(struct team *team, struct team_port *port, 95647be03a2SAmerigo Wang gfp_t gfp) 957bd2d0837SJiri Pirko { 958bd2d0837SJiri Pirko return 0; 959bd2d0837SJiri Pirko } 960bd2d0837SJiri Pirko static void team_port_disable_netpoll(struct team_port *port) 961bd2d0837SJiri Pirko { 962bd2d0837SJiri Pirko } 963bd2d0837SJiri Pirko static struct netpoll_info *team_netpoll_info(struct team *team) 964bd2d0837SJiri Pirko { 965bd2d0837SJiri Pirko return NULL; 966bd2d0837SJiri Pirko } 967bd2d0837SJiri Pirko #endif 968bd2d0837SJiri Pirko 9693d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup); 9701d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 9711d76efe1SJiri Pirko struct net_device *port_dev); 9723d249d4cSJiri Pirko 9733d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 9743d249d4cSJiri Pirko { 9753d249d4cSJiri Pirko struct net_device *dev = team->dev; 9763d249d4cSJiri Pirko struct team_port *port; 9773d249d4cSJiri Pirko char *portname = port_dev->name; 9783d249d4cSJiri Pirko int err; 9793d249d4cSJiri Pirko 9801d76efe1SJiri Pirko if (port_dev->flags & IFF_LOOPBACK) { 9811d76efe1SJiri Pirko netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", 9823d249d4cSJiri Pirko portname); 9833d249d4cSJiri Pirko return -EINVAL; 9843d249d4cSJiri Pirko } 9853d249d4cSJiri Pirko 9863d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 9873d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 9883d249d4cSJiri Pirko "of a team device\n", portname); 9893d249d4cSJiri Pirko return -EBUSY; 9903d249d4cSJiri Pirko } 9913d249d4cSJiri Pirko 9922c33bb37SJiri Pirko if (port_dev->features & NETIF_F_VLAN_CHALLENGED && 9932c33bb37SJiri Pirko vlan_uses_dev(dev)) { 9942c33bb37SJiri Pirko netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", 9952c33bb37SJiri Pirko portname); 9962c33bb37SJiri Pirko return -EPERM; 9972c33bb37SJiri Pirko } 9982c33bb37SJiri Pirko 9991d76efe1SJiri Pirko err = team_dev_type_check_change(dev, port_dev); 10001d76efe1SJiri Pirko if (err) 10011d76efe1SJiri Pirko return err; 10021d76efe1SJiri Pirko 10033d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 10043d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 10053d249d4cSJiri Pirko portname); 10063d249d4cSJiri Pirko return -EBUSY; 10073d249d4cSJiri Pirko } 10083d249d4cSJiri Pirko 10095149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 10105149ee58SJiri Pirko GFP_KERNEL); 10113d249d4cSJiri Pirko if (!port) 10123d249d4cSJiri Pirko return -ENOMEM; 10133d249d4cSJiri Pirko 10143d249d4cSJiri Pirko port->dev = port_dev; 10153d249d4cSJiri Pirko port->team = team; 10168ff5105aSJiri Pirko INIT_LIST_HEAD(&port->qom_list); 10173d249d4cSJiri Pirko 10183d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 10193d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 10203d249d4cSJiri Pirko if (err) { 10213d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 10223d249d4cSJiri Pirko goto err_set_mtu; 10233d249d4cSJiri Pirko } 10243d249d4cSJiri Pirko 10251d76efe1SJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); 10263d249d4cSJiri Pirko 10273d249d4cSJiri Pirko err = team_port_enter(team, port); 10283d249d4cSJiri Pirko if (err) { 10293d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 10303d249d4cSJiri Pirko portname); 10313d249d4cSJiri Pirko goto err_port_enter; 10323d249d4cSJiri Pirko } 10333d249d4cSJiri Pirko 10343d249d4cSJiri Pirko err = dev_open(port_dev); 10353d249d4cSJiri Pirko if (err) { 10363d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 10373d249d4cSJiri Pirko portname); 10383d249d4cSJiri Pirko goto err_dev_open; 10393d249d4cSJiri Pirko } 10403d249d4cSJiri Pirko 104157459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 104257459185SJiri Pirko if (err) { 104357459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 104457459185SJiri Pirko portname); 104557459185SJiri Pirko goto err_vids_add; 104657459185SJiri Pirko } 104757459185SJiri Pirko 1048bd2d0837SJiri Pirko if (team_netpoll_info(team)) { 104947be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, GFP_KERNEL); 1050bd2d0837SJiri Pirko if (err) { 1051bd2d0837SJiri Pirko netdev_err(dev, "Failed to enable netpoll on device %s\n", 1052bd2d0837SJiri Pirko portname); 1053bd2d0837SJiri Pirko goto err_enable_netpoll; 1054bd2d0837SJiri Pirko } 1055bd2d0837SJiri Pirko } 1056bd2d0837SJiri Pirko 10573d249d4cSJiri Pirko err = netdev_set_master(port_dev, dev); 10583d249d4cSJiri Pirko if (err) { 10593d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to set master\n", portname); 10603d249d4cSJiri Pirko goto err_set_master; 10613d249d4cSJiri Pirko } 10623d249d4cSJiri Pirko 10633d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 10643d249d4cSJiri Pirko port); 10653d249d4cSJiri Pirko if (err) { 10663d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 10673d249d4cSJiri Pirko portname); 10683d249d4cSJiri Pirko goto err_handler_register; 10693d249d4cSJiri Pirko } 10703d249d4cSJiri Pirko 107135b384bdSJiri Pirko err = __team_option_inst_add_port(team, port); 107280f7c668SJiri Pirko if (err) { 107380f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 107480f7c668SJiri Pirko portname); 107580f7c668SJiri Pirko goto err_option_port_add; 107680f7c668SJiri Pirko } 107780f7c668SJiri Pirko 107819a0b58eSJiri Pirko port->index = -1; 107919a0b58eSJiri Pirko team_port_enable(team, port); 108019a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 10813d249d4cSJiri Pirko __team_compute_features(team); 10823d249d4cSJiri Pirko __team_port_change_check(port, !!netif_carrier_ok(port_dev)); 108335b384bdSJiri Pirko __team_options_change_check(team); 10843d249d4cSJiri Pirko 10853d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 10863d249d4cSJiri Pirko 10873d249d4cSJiri Pirko return 0; 10883d249d4cSJiri Pirko 108980f7c668SJiri Pirko err_option_port_add: 109080f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 109180f7c668SJiri Pirko 10923d249d4cSJiri Pirko err_handler_register: 10933d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 10943d249d4cSJiri Pirko 10953d249d4cSJiri Pirko err_set_master: 1096bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1097bd2d0837SJiri Pirko 1098bd2d0837SJiri Pirko err_enable_netpoll: 109957459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 110057459185SJiri Pirko 110157459185SJiri Pirko err_vids_add: 11023d249d4cSJiri Pirko dev_close(port_dev); 11033d249d4cSJiri Pirko 11043d249d4cSJiri Pirko err_dev_open: 11053d249d4cSJiri Pirko team_port_leave(team, port); 11061d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 11073d249d4cSJiri Pirko 11083d249d4cSJiri Pirko err_port_enter: 11093d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 11103d249d4cSJiri Pirko 11113d249d4cSJiri Pirko err_set_mtu: 11123d249d4cSJiri Pirko kfree(port); 11133d249d4cSJiri Pirko 11143d249d4cSJiri Pirko return err; 11153d249d4cSJiri Pirko } 11163d249d4cSJiri Pirko 11173d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 11183d249d4cSJiri Pirko { 11193d249d4cSJiri Pirko struct net_device *dev = team->dev; 11203d249d4cSJiri Pirko struct team_port *port; 11213d249d4cSJiri Pirko char *portname = port_dev->name; 11223d249d4cSJiri Pirko 11233d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 11243d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 11253d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 11263d249d4cSJiri Pirko portname); 11273d249d4cSJiri Pirko return -ENOENT; 11283d249d4cSJiri Pirko } 11293d249d4cSJiri Pirko 113035b384bdSJiri Pirko __team_option_inst_mark_removed_port(team, port); 113135b384bdSJiri Pirko __team_options_change_check(team); 113235b384bdSJiri Pirko __team_option_inst_del_port(team, port); 1133b82b9183SJiri Pirko port->removed = true; 11343d249d4cSJiri Pirko __team_port_change_check(port, false); 113519a0b58eSJiri Pirko team_port_disable(team, port); 113619a0b58eSJiri Pirko list_del_rcu(&port->list); 11373d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 11383d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 1139bd2d0837SJiri Pirko team_port_disable_netpoll(port); 114057459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 11413d249d4cSJiri Pirko dev_close(port_dev); 11423d249d4cSJiri Pirko team_port_leave(team, port); 11431d76efe1SJiri Pirko team_port_set_orig_dev_addr(port); 11443d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 11453d249d4cSJiri Pirko synchronize_rcu(); 11463d249d4cSJiri Pirko kfree(port); 11473d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 11483d249d4cSJiri Pirko __team_compute_features(team); 11493d249d4cSJiri Pirko 11503d249d4cSJiri Pirko return 0; 11513d249d4cSJiri Pirko } 11523d249d4cSJiri Pirko 11533d249d4cSJiri Pirko 11543d249d4cSJiri Pirko /***************** 11553d249d4cSJiri Pirko * Net device ops 11563d249d4cSJiri Pirko *****************/ 11573d249d4cSJiri Pirko 115880f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 11593d249d4cSJiri Pirko { 1160d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 11613d249d4cSJiri Pirko return 0; 11623d249d4cSJiri Pirko } 11633d249d4cSJiri Pirko 116480f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 11653d249d4cSJiri Pirko { 116680f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 11673d249d4cSJiri Pirko } 11683d249d4cSJiri Pirko 1169acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 1170acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1171acd69962SJiri Pirko { 117285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 117385d59a87SJiri Pirko 117485d59a87SJiri Pirko ctx->data.bool_val = team_port_enabled(port); 1175acd69962SJiri Pirko return 0; 1176acd69962SJiri Pirko } 1177acd69962SJiri Pirko 1178acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 1179acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 1180acd69962SJiri Pirko { 118185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 118285d59a87SJiri Pirko 1183acd69962SJiri Pirko if (ctx->data.bool_val) 118485d59a87SJiri Pirko team_port_enable(team, port); 1185acd69962SJiri Pirko else 118685d59a87SJiri Pirko team_port_disable(team, port); 1187acd69962SJiri Pirko return 0; 1188acd69962SJiri Pirko } 1189acd69962SJiri Pirko 119071472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 119171472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 119271472ec1SJiri Pirko { 119385d59a87SJiri Pirko struct team_port *port = ctx->info->port; 119485d59a87SJiri Pirko 119585d59a87SJiri Pirko ctx->data.bool_val = port->user.linkup; 119671472ec1SJiri Pirko return 0; 119771472ec1SJiri Pirko } 119871472ec1SJiri Pirko 119971472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 120071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 120171472ec1SJiri Pirko { 120285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 120385d59a87SJiri Pirko 120485d59a87SJiri Pirko port->user.linkup = ctx->data.bool_val; 120585d59a87SJiri Pirko team_refresh_port_linkup(port); 120671472ec1SJiri Pirko return 0; 120771472ec1SJiri Pirko } 120871472ec1SJiri Pirko 120971472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 121071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 121171472ec1SJiri Pirko { 121285d59a87SJiri Pirko struct team_port *port = ctx->info->port; 121371472ec1SJiri Pirko 121471472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 121571472ec1SJiri Pirko return 0; 121671472ec1SJiri Pirko } 121771472ec1SJiri Pirko 121871472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 121971472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 122071472ec1SJiri Pirko { 122185d59a87SJiri Pirko struct team_port *port = ctx->info->port; 122271472ec1SJiri Pirko 122371472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 122485d59a87SJiri Pirko team_refresh_port_linkup(port); 122571472ec1SJiri Pirko return 0; 122671472ec1SJiri Pirko } 122771472ec1SJiri Pirko 1228a86fc6b7SJiri Pirko static int team_priority_option_get(struct team *team, 1229a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1230a86fc6b7SJiri Pirko { 1231a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1232a86fc6b7SJiri Pirko 1233a86fc6b7SJiri Pirko ctx->data.s32_val = port->priority; 1234a86fc6b7SJiri Pirko return 0; 1235a86fc6b7SJiri Pirko } 1236a86fc6b7SJiri Pirko 1237a86fc6b7SJiri Pirko static int team_priority_option_set(struct team *team, 1238a86fc6b7SJiri Pirko struct team_gsetter_ctx *ctx) 1239a86fc6b7SJiri Pirko { 1240a86fc6b7SJiri Pirko struct team_port *port = ctx->info->port; 1241a86fc6b7SJiri Pirko 1242a86fc6b7SJiri Pirko port->priority = ctx->data.s32_val; 12438ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 1244a86fc6b7SJiri Pirko return 0; 1245a86fc6b7SJiri Pirko } 1246a86fc6b7SJiri Pirko 12478ff5105aSJiri Pirko static int team_queue_id_option_get(struct team *team, 12488ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 12498ff5105aSJiri Pirko { 12508ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 12518ff5105aSJiri Pirko 12528ff5105aSJiri Pirko ctx->data.u32_val = port->queue_id; 12538ff5105aSJiri Pirko return 0; 12548ff5105aSJiri Pirko } 12558ff5105aSJiri Pirko 12568ff5105aSJiri Pirko static int team_queue_id_option_set(struct team *team, 12578ff5105aSJiri Pirko struct team_gsetter_ctx *ctx) 12588ff5105aSJiri Pirko { 12598ff5105aSJiri Pirko struct team_port *port = ctx->info->port; 12608ff5105aSJiri Pirko 12618ff5105aSJiri Pirko if (port->queue_id == ctx->data.u32_val) 12628ff5105aSJiri Pirko return 0; 12638ff5105aSJiri Pirko if (ctx->data.u32_val >= team->dev->real_num_tx_queues) 12648ff5105aSJiri Pirko return -EINVAL; 12658ff5105aSJiri Pirko port->queue_id = ctx->data.u32_val; 12668ff5105aSJiri Pirko team_queue_override_port_refresh(team, port); 12678ff5105aSJiri Pirko return 0; 12688ff5105aSJiri Pirko } 12698ff5105aSJiri Pirko 12708ff5105aSJiri Pirko 1271358b8382SJiri Pirko static const struct team_option team_options[] = { 12723d249d4cSJiri Pirko { 12733d249d4cSJiri Pirko .name = "mode", 12743d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 12753d249d4cSJiri Pirko .getter = team_mode_option_get, 12763d249d4cSJiri Pirko .setter = team_mode_option_set, 12773d249d4cSJiri Pirko }, 127871472ec1SJiri Pirko { 1279acd69962SJiri Pirko .name = "enabled", 1280acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1281acd69962SJiri Pirko .per_port = true, 1282acd69962SJiri Pirko .getter = team_port_en_option_get, 1283acd69962SJiri Pirko .setter = team_port_en_option_set, 1284acd69962SJiri Pirko }, 1285acd69962SJiri Pirko { 128671472ec1SJiri Pirko .name = "user_linkup", 128771472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 128871472ec1SJiri Pirko .per_port = true, 128971472ec1SJiri Pirko .getter = team_user_linkup_option_get, 129071472ec1SJiri Pirko .setter = team_user_linkup_option_set, 129171472ec1SJiri Pirko }, 129271472ec1SJiri Pirko { 129371472ec1SJiri Pirko .name = "user_linkup_enabled", 129471472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 129571472ec1SJiri Pirko .per_port = true, 129671472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 129771472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 129871472ec1SJiri Pirko }, 1299a86fc6b7SJiri Pirko { 1300a86fc6b7SJiri Pirko .name = "priority", 1301a86fc6b7SJiri Pirko .type = TEAM_OPTION_TYPE_S32, 1302a86fc6b7SJiri Pirko .per_port = true, 1303a86fc6b7SJiri Pirko .getter = team_priority_option_get, 1304a86fc6b7SJiri Pirko .setter = team_priority_option_set, 1305a86fc6b7SJiri Pirko }, 13068ff5105aSJiri Pirko { 13078ff5105aSJiri Pirko .name = "queue_id", 13088ff5105aSJiri Pirko .type = TEAM_OPTION_TYPE_U32, 13098ff5105aSJiri Pirko .per_port = true, 13108ff5105aSJiri Pirko .getter = team_queue_id_option_get, 13118ff5105aSJiri Pirko .setter = team_queue_id_option_set, 13128ff5105aSJiri Pirko }, 13133d249d4cSJiri Pirko }; 13143d249d4cSJiri Pirko 13156c85f2bdSJiri Pirko static struct lock_class_key team_netdev_xmit_lock_key; 13166c85f2bdSJiri Pirko static struct lock_class_key team_netdev_addr_lock_key; 13176c85f2bdSJiri Pirko 13186c85f2bdSJiri Pirko static void team_set_lockdep_class_one(struct net_device *dev, 13196c85f2bdSJiri Pirko struct netdev_queue *txq, 13206c85f2bdSJiri Pirko void *unused) 13216c85f2bdSJiri Pirko { 13226c85f2bdSJiri Pirko lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); 13236c85f2bdSJiri Pirko } 13246c85f2bdSJiri Pirko 13256c85f2bdSJiri Pirko static void team_set_lockdep_class(struct net_device *dev) 13266c85f2bdSJiri Pirko { 13276c85f2bdSJiri Pirko lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); 13286c85f2bdSJiri Pirko netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); 13296c85f2bdSJiri Pirko } 13306c85f2bdSJiri Pirko 13313d249d4cSJiri Pirko static int team_init(struct net_device *dev) 13323d249d4cSJiri Pirko { 13333d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13343d249d4cSJiri Pirko int i; 1335358b8382SJiri Pirko int err; 13363d249d4cSJiri Pirko 13373d249d4cSJiri Pirko team->dev = dev; 133861dc3461SJiri Pirko mutex_init(&team->lock); 1339d299cd51SJiri Pirko team_set_no_mode(team); 13403d249d4cSJiri Pirko 13413d249d4cSJiri Pirko team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); 13423d249d4cSJiri Pirko if (!team->pcpu_stats) 13433d249d4cSJiri Pirko return -ENOMEM; 13443d249d4cSJiri Pirko 13453d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 134619a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 13473d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 13488ff5105aSJiri Pirko err = team_queue_override_init(team); 13498ff5105aSJiri Pirko if (err) 13508ff5105aSJiri Pirko goto err_team_queue_override_init; 13513d249d4cSJiri Pirko 13523d249d4cSJiri Pirko team_adjust_ops(team); 13533d249d4cSJiri Pirko 13543d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 135580f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1356358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1357358b8382SJiri Pirko if (err) 1358358b8382SJiri Pirko goto err_options_register; 13593d249d4cSJiri Pirko netif_carrier_off(dev); 13603d249d4cSJiri Pirko 13616c85f2bdSJiri Pirko team_set_lockdep_class(dev); 13626c85f2bdSJiri Pirko 13633d249d4cSJiri Pirko return 0; 1364358b8382SJiri Pirko 1365358b8382SJiri Pirko err_options_register: 13668ff5105aSJiri Pirko team_queue_override_fini(team); 13678ff5105aSJiri Pirko err_team_queue_override_init: 1368358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1369358b8382SJiri Pirko 1370358b8382SJiri Pirko return err; 13713d249d4cSJiri Pirko } 13723d249d4cSJiri Pirko 13733d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 13743d249d4cSJiri Pirko { 13753d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13763d249d4cSJiri Pirko struct team_port *port; 13773d249d4cSJiri Pirko struct team_port *tmp; 13783d249d4cSJiri Pirko 137961dc3461SJiri Pirko mutex_lock(&team->lock); 13803d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 13813d249d4cSJiri Pirko team_port_del(team, port->dev); 13823d249d4cSJiri Pirko 13833d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 13843d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 13858ff5105aSJiri Pirko team_queue_override_fini(team); 138661dc3461SJiri Pirko mutex_unlock(&team->lock); 13873d249d4cSJiri Pirko } 13883d249d4cSJiri Pirko 13893d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 13903d249d4cSJiri Pirko { 13913d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 13923d249d4cSJiri Pirko 13933d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 13943d249d4cSJiri Pirko free_netdev(dev); 13953d249d4cSJiri Pirko } 13963d249d4cSJiri Pirko 13973d249d4cSJiri Pirko static int team_open(struct net_device *dev) 13983d249d4cSJiri Pirko { 13993d249d4cSJiri Pirko netif_carrier_on(dev); 14003d249d4cSJiri Pirko return 0; 14013d249d4cSJiri Pirko } 14023d249d4cSJiri Pirko 14033d249d4cSJiri Pirko static int team_close(struct net_device *dev) 14043d249d4cSJiri Pirko { 14053d249d4cSJiri Pirko netif_carrier_off(dev); 14063d249d4cSJiri Pirko return 0; 14073d249d4cSJiri Pirko } 14083d249d4cSJiri Pirko 14093d249d4cSJiri Pirko /* 14103d249d4cSJiri Pirko * note: already called with rcu_read_lock 14113d249d4cSJiri Pirko */ 14123d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 14133d249d4cSJiri Pirko { 14143d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14158ff5105aSJiri Pirko bool tx_success; 14163d249d4cSJiri Pirko unsigned int len = skb->len; 14173d249d4cSJiri Pirko 14188ff5105aSJiri Pirko tx_success = team_queue_override_transmit(team, skb); 14198ff5105aSJiri Pirko if (!tx_success) 14203d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 14213d249d4cSJiri Pirko if (tx_success) { 14223d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 14233d249d4cSJiri Pirko 14243d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 14253d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 14263d249d4cSJiri Pirko pcpu_stats->tx_packets++; 14273d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 14283d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 14293d249d4cSJiri Pirko } else { 14303d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 14313d249d4cSJiri Pirko } 14323d249d4cSJiri Pirko 14333d249d4cSJiri Pirko return NETDEV_TX_OK; 14343d249d4cSJiri Pirko } 14353d249d4cSJiri Pirko 14366c85f2bdSJiri Pirko static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) 14376c85f2bdSJiri Pirko { 14386c85f2bdSJiri Pirko /* 14396c85f2bdSJiri Pirko * This helper function exists to help dev_pick_tx get the correct 14406c85f2bdSJiri Pirko * destination queue. Using a helper function skips a call to 14416c85f2bdSJiri Pirko * skb_tx_hash and will put the skbs in the queue we expect on their 14426c85f2bdSJiri Pirko * way down to the team driver. 14436c85f2bdSJiri Pirko */ 14446c85f2bdSJiri Pirko u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; 14456c85f2bdSJiri Pirko 14466c85f2bdSJiri Pirko /* 14476c85f2bdSJiri Pirko * Save the original txq to restore before passing to the driver 14486c85f2bdSJiri Pirko */ 14496c85f2bdSJiri Pirko qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; 14506c85f2bdSJiri Pirko 14516c85f2bdSJiri Pirko if (unlikely(txq >= dev->real_num_tx_queues)) { 14526c85f2bdSJiri Pirko do { 14536c85f2bdSJiri Pirko txq -= dev->real_num_tx_queues; 14546c85f2bdSJiri Pirko } while (txq >= dev->real_num_tx_queues); 14556c85f2bdSJiri Pirko } 14566c85f2bdSJiri Pirko return txq; 14576c85f2bdSJiri Pirko } 14586c85f2bdSJiri Pirko 14593d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 14603d249d4cSJiri Pirko { 14613d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14623d249d4cSJiri Pirko struct team_port *port; 14633d249d4cSJiri Pirko int inc; 14643d249d4cSJiri Pirko 14653d249d4cSJiri Pirko rcu_read_lock(); 14663d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 14673d249d4cSJiri Pirko if (change & IFF_PROMISC) { 14683d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 14693d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 14703d249d4cSJiri Pirko } 14713d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 14723d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 14733d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 14743d249d4cSJiri Pirko } 14753d249d4cSJiri Pirko } 14763d249d4cSJiri Pirko rcu_read_unlock(); 14773d249d4cSJiri Pirko } 14783d249d4cSJiri Pirko 14793d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 14803d249d4cSJiri Pirko { 14813d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14823d249d4cSJiri Pirko struct team_port *port; 14833d249d4cSJiri Pirko 14843d249d4cSJiri Pirko rcu_read_lock(); 14853d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 14863d249d4cSJiri Pirko dev_uc_sync(port->dev, dev); 14873d249d4cSJiri Pirko dev_mc_sync(port->dev, dev); 14883d249d4cSJiri Pirko } 14893d249d4cSJiri Pirko rcu_read_unlock(); 14903d249d4cSJiri Pirko } 14913d249d4cSJiri Pirko 14923d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 14933d249d4cSJiri Pirko { 14941d76efe1SJiri Pirko struct sockaddr *addr = p; 14953d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 14963d249d4cSJiri Pirko struct team_port *port; 14973d249d4cSJiri Pirko 14981d76efe1SJiri Pirko if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) 14991d76efe1SJiri Pirko return -EADDRNOTAVAIL; 15001d76efe1SJiri Pirko memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 15011d76efe1SJiri Pirko dev->addr_assign_type &= ~NET_ADDR_RANDOM; 15023d249d4cSJiri Pirko rcu_read_lock(); 15033d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 15041d76efe1SJiri Pirko if (team->ops.port_change_dev_addr) 15051d76efe1SJiri Pirko team->ops.port_change_dev_addr(team, port); 15063d249d4cSJiri Pirko rcu_read_unlock(); 15073d249d4cSJiri Pirko return 0; 15083d249d4cSJiri Pirko } 15093d249d4cSJiri Pirko 15103d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 15113d249d4cSJiri Pirko { 15123d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15133d249d4cSJiri Pirko struct team_port *port; 15143d249d4cSJiri Pirko int err; 15153d249d4cSJiri Pirko 15163d249d4cSJiri Pirko /* 15173d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 15183d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 15193d249d4cSJiri Pirko */ 152061dc3461SJiri Pirko mutex_lock(&team->lock); 15213d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 15223d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 15233d249d4cSJiri Pirko if (err) { 15243d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 15253d249d4cSJiri Pirko port->dev->name); 15263d249d4cSJiri Pirko goto unwind; 15273d249d4cSJiri Pirko } 15283d249d4cSJiri Pirko } 152961dc3461SJiri Pirko mutex_unlock(&team->lock); 15303d249d4cSJiri Pirko 15313d249d4cSJiri Pirko dev->mtu = new_mtu; 15323d249d4cSJiri Pirko 15333d249d4cSJiri Pirko return 0; 15343d249d4cSJiri Pirko 15353d249d4cSJiri Pirko unwind: 15363d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 15373d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 153861dc3461SJiri Pirko mutex_unlock(&team->lock); 15393d249d4cSJiri Pirko 15403d249d4cSJiri Pirko return err; 15413d249d4cSJiri Pirko } 15423d249d4cSJiri Pirko 15433d249d4cSJiri Pirko static struct rtnl_link_stats64 * 15443d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 15453d249d4cSJiri Pirko { 15463d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15473d249d4cSJiri Pirko struct team_pcpu_stats *p; 15483d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 15493d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 15503d249d4cSJiri Pirko unsigned int start; 15513d249d4cSJiri Pirko int i; 15523d249d4cSJiri Pirko 15533d249d4cSJiri Pirko for_each_possible_cpu(i) { 15543d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 15553d249d4cSJiri Pirko do { 15563d249d4cSJiri Pirko start = u64_stats_fetch_begin_bh(&p->syncp); 15573d249d4cSJiri Pirko rx_packets = p->rx_packets; 15583d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 15593d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 15603d249d4cSJiri Pirko tx_packets = p->tx_packets; 15613d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 15623d249d4cSJiri Pirko } while (u64_stats_fetch_retry_bh(&p->syncp, start)); 15633d249d4cSJiri Pirko 15643d249d4cSJiri Pirko stats->rx_packets += rx_packets; 15653d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 15663d249d4cSJiri Pirko stats->multicast += rx_multicast; 15673d249d4cSJiri Pirko stats->tx_packets += tx_packets; 15683d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 15693d249d4cSJiri Pirko /* 15703d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 15713d249d4cSJiri Pirko * without syncp protection. 15723d249d4cSJiri Pirko */ 15733d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 15743d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 15753d249d4cSJiri Pirko } 15763d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 15773d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 15783d249d4cSJiri Pirko return stats; 15793d249d4cSJiri Pirko } 15803d249d4cSJiri Pirko 15818e586137SJiri Pirko static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) 15823d249d4cSJiri Pirko { 15833d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 15843d249d4cSJiri Pirko struct team_port *port; 158587002b03SJiri Pirko int err; 15863d249d4cSJiri Pirko 158787002b03SJiri Pirko /* 158887002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 158987002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 159087002b03SJiri Pirko */ 159187002b03SJiri Pirko mutex_lock(&team->lock); 159287002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 159387002b03SJiri Pirko err = vlan_vid_add(port->dev, vid); 159487002b03SJiri Pirko if (err) 159587002b03SJiri Pirko goto unwind; 15963d249d4cSJiri Pirko } 159787002b03SJiri Pirko mutex_unlock(&team->lock); 15988e586137SJiri Pirko 15998e586137SJiri Pirko return 0; 160087002b03SJiri Pirko 160187002b03SJiri Pirko unwind: 160287002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 160387002b03SJiri Pirko vlan_vid_del(port->dev, vid); 160487002b03SJiri Pirko mutex_unlock(&team->lock); 160587002b03SJiri Pirko 160687002b03SJiri Pirko return err; 16073d249d4cSJiri Pirko } 16083d249d4cSJiri Pirko 16098e586137SJiri Pirko static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) 16103d249d4cSJiri Pirko { 16113d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16123d249d4cSJiri Pirko struct team_port *port; 16133d249d4cSJiri Pirko 16143d249d4cSJiri Pirko rcu_read_lock(); 161587002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 161687002b03SJiri Pirko vlan_vid_del(port->dev, vid); 16173d249d4cSJiri Pirko rcu_read_unlock(); 16188e586137SJiri Pirko 16198e586137SJiri Pirko return 0; 16203d249d4cSJiri Pirko } 16213d249d4cSJiri Pirko 1622bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1623bd2d0837SJiri Pirko static void team_poll_controller(struct net_device *dev) 1624bd2d0837SJiri Pirko { 1625bd2d0837SJiri Pirko } 1626bd2d0837SJiri Pirko 1627bd2d0837SJiri Pirko static void __team_netpoll_cleanup(struct team *team) 1628bd2d0837SJiri Pirko { 1629bd2d0837SJiri Pirko struct team_port *port; 1630bd2d0837SJiri Pirko 1631bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) 1632bd2d0837SJiri Pirko team_port_disable_netpoll(port); 1633bd2d0837SJiri Pirko } 1634bd2d0837SJiri Pirko 1635bd2d0837SJiri Pirko static void team_netpoll_cleanup(struct net_device *dev) 1636bd2d0837SJiri Pirko { 1637bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1638bd2d0837SJiri Pirko 1639bd2d0837SJiri Pirko mutex_lock(&team->lock); 1640bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1641bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1642bd2d0837SJiri Pirko } 1643bd2d0837SJiri Pirko 1644bd2d0837SJiri Pirko static int team_netpoll_setup(struct net_device *dev, 164547be03a2SAmerigo Wang struct netpoll_info *npifo, gfp_t gfp) 1646bd2d0837SJiri Pirko { 1647bd2d0837SJiri Pirko struct team *team = netdev_priv(dev); 1648bd2d0837SJiri Pirko struct team_port *port; 16493324d024SJiri Pirko int err = 0; 1650bd2d0837SJiri Pirko 1651bd2d0837SJiri Pirko mutex_lock(&team->lock); 1652bd2d0837SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 165347be03a2SAmerigo Wang err = team_port_enable_netpoll(team, port, gfp); 1654bd2d0837SJiri Pirko if (err) { 1655bd2d0837SJiri Pirko __team_netpoll_cleanup(team); 1656bd2d0837SJiri Pirko break; 1657bd2d0837SJiri Pirko } 1658bd2d0837SJiri Pirko } 1659bd2d0837SJiri Pirko mutex_unlock(&team->lock); 1660bd2d0837SJiri Pirko return err; 1661bd2d0837SJiri Pirko } 1662bd2d0837SJiri Pirko #endif 1663bd2d0837SJiri Pirko 16643d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 16653d249d4cSJiri Pirko { 16663d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16673d249d4cSJiri Pirko int err; 16683d249d4cSJiri Pirko 166961dc3461SJiri Pirko mutex_lock(&team->lock); 16703d249d4cSJiri Pirko err = team_port_add(team, port_dev); 167161dc3461SJiri Pirko mutex_unlock(&team->lock); 16723d249d4cSJiri Pirko return err; 16733d249d4cSJiri Pirko } 16743d249d4cSJiri Pirko 16753d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 16763d249d4cSJiri Pirko { 16773d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 16783d249d4cSJiri Pirko int err; 16793d249d4cSJiri Pirko 168061dc3461SJiri Pirko mutex_lock(&team->lock); 16813d249d4cSJiri Pirko err = team_port_del(team, port_dev); 168261dc3461SJiri Pirko mutex_unlock(&team->lock); 16833d249d4cSJiri Pirko return err; 16843d249d4cSJiri Pirko } 16853d249d4cSJiri Pirko 1686234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1687234a8fd4SJiri Pirko netdev_features_t features) 1688234a8fd4SJiri Pirko { 1689234a8fd4SJiri Pirko struct team_port *port; 1690234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1691234a8fd4SJiri Pirko netdev_features_t mask; 1692234a8fd4SJiri Pirko 1693234a8fd4SJiri Pirko mask = features; 1694234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1695234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1696234a8fd4SJiri Pirko 1697234a8fd4SJiri Pirko rcu_read_lock(); 1698234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1699234a8fd4SJiri Pirko features = netdev_increment_features(features, 1700234a8fd4SJiri Pirko port->dev->features, 1701234a8fd4SJiri Pirko mask); 1702234a8fd4SJiri Pirko } 1703234a8fd4SJiri Pirko rcu_read_unlock(); 1704234a8fd4SJiri Pirko return features; 1705234a8fd4SJiri Pirko } 1706234a8fd4SJiri Pirko 17073d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 17083d249d4cSJiri Pirko .ndo_init = team_init, 17093d249d4cSJiri Pirko .ndo_uninit = team_uninit, 17103d249d4cSJiri Pirko .ndo_open = team_open, 17113d249d4cSJiri Pirko .ndo_stop = team_close, 17123d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 17136c85f2bdSJiri Pirko .ndo_select_queue = team_select_queue, 17143d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 17153d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 17163d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 17173d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 17183d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 17193d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 17203d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 1721bd2d0837SJiri Pirko #ifdef CONFIG_NET_POLL_CONTROLLER 1722bd2d0837SJiri Pirko .ndo_poll_controller = team_poll_controller, 1723bd2d0837SJiri Pirko .ndo_netpoll_setup = team_netpoll_setup, 1724bd2d0837SJiri Pirko .ndo_netpoll_cleanup = team_netpoll_cleanup, 1725bd2d0837SJiri Pirko #endif 17263d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 17273d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1728234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 17293d249d4cSJiri Pirko }; 17303d249d4cSJiri Pirko 17313d249d4cSJiri Pirko 17323d249d4cSJiri Pirko /*********************** 17333d249d4cSJiri Pirko * rt netlink interface 17343d249d4cSJiri Pirko ***********************/ 17353d249d4cSJiri Pirko 17361d76efe1SJiri Pirko static void team_setup_by_port(struct net_device *dev, 17371d76efe1SJiri Pirko struct net_device *port_dev) 17381d76efe1SJiri Pirko { 17391d76efe1SJiri Pirko dev->header_ops = port_dev->header_ops; 17401d76efe1SJiri Pirko dev->type = port_dev->type; 17411d76efe1SJiri Pirko dev->hard_header_len = port_dev->hard_header_len; 17421d76efe1SJiri Pirko dev->addr_len = port_dev->addr_len; 17431d76efe1SJiri Pirko dev->mtu = port_dev->mtu; 17441d76efe1SJiri Pirko memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); 17451d76efe1SJiri Pirko memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); 17461d76efe1SJiri Pirko dev->addr_assign_type &= ~NET_ADDR_RANDOM; 17471d76efe1SJiri Pirko } 17481d76efe1SJiri Pirko 17491d76efe1SJiri Pirko static int team_dev_type_check_change(struct net_device *dev, 17501d76efe1SJiri Pirko struct net_device *port_dev) 17511d76efe1SJiri Pirko { 17521d76efe1SJiri Pirko struct team *team = netdev_priv(dev); 17531d76efe1SJiri Pirko char *portname = port_dev->name; 17541d76efe1SJiri Pirko int err; 17551d76efe1SJiri Pirko 17561d76efe1SJiri Pirko if (dev->type == port_dev->type) 17571d76efe1SJiri Pirko return 0; 17581d76efe1SJiri Pirko if (!list_empty(&team->port_list)) { 17591d76efe1SJiri Pirko netdev_err(dev, "Device %s is of different type\n", portname); 17601d76efe1SJiri Pirko return -EBUSY; 17611d76efe1SJiri Pirko } 17621d76efe1SJiri Pirko err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); 17631d76efe1SJiri Pirko err = notifier_to_errno(err); 17641d76efe1SJiri Pirko if (err) { 17651d76efe1SJiri Pirko netdev_err(dev, "Refused to change device type\n"); 17661d76efe1SJiri Pirko return err; 17671d76efe1SJiri Pirko } 17681d76efe1SJiri Pirko dev_uc_flush(dev); 17691d76efe1SJiri Pirko dev_mc_flush(dev); 17701d76efe1SJiri Pirko team_setup_by_port(dev, port_dev); 17711d76efe1SJiri Pirko call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); 17721d76efe1SJiri Pirko return 0; 17731d76efe1SJiri Pirko } 17741d76efe1SJiri Pirko 17753d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 17763d249d4cSJiri Pirko { 17773d249d4cSJiri Pirko ether_setup(dev); 17783d249d4cSJiri Pirko 17793d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 17803d249d4cSJiri Pirko dev->destructor = team_destructor; 17813d249d4cSJiri Pirko dev->tx_queue_len = 0; 17823d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 17833d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 17843d249d4cSJiri Pirko 17853d249d4cSJiri Pirko /* 17863d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 17873d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 17883d249d4cSJiri Pirko * Let this up to underlay drivers. 17893d249d4cSJiri Pirko */ 17905a1d1c8cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; 17913d249d4cSJiri Pirko 17923d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 17933d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 17943d249d4cSJiri Pirko dev->hw_features = NETIF_F_HW_VLAN_TX | 17953d249d4cSJiri Pirko NETIF_F_HW_VLAN_RX | 17963d249d4cSJiri Pirko NETIF_F_HW_VLAN_FILTER; 17973d249d4cSJiri Pirko 17983d249d4cSJiri Pirko dev->features |= dev->hw_features; 17993d249d4cSJiri Pirko } 18003d249d4cSJiri Pirko 18013d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 18023d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 18033d249d4cSJiri Pirko { 18043d249d4cSJiri Pirko int err; 18053d249d4cSJiri Pirko 18063d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 18077ce5d222SDanny Kukawka eth_hw_addr_random(dev); 18083d249d4cSJiri Pirko 18093d249d4cSJiri Pirko err = register_netdevice(dev); 18103d249d4cSJiri Pirko if (err) 18113d249d4cSJiri Pirko return err; 18123d249d4cSJiri Pirko 18133d249d4cSJiri Pirko return 0; 18143d249d4cSJiri Pirko } 18153d249d4cSJiri Pirko 18163d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 18173d249d4cSJiri Pirko { 18183d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 18193d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 18203d249d4cSJiri Pirko return -EINVAL; 18213d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 18223d249d4cSJiri Pirko return -EADDRNOTAVAIL; 18233d249d4cSJiri Pirko } 18243d249d4cSJiri Pirko return 0; 18253d249d4cSJiri Pirko } 18263d249d4cSJiri Pirko 18276c85f2bdSJiri Pirko static unsigned int team_get_num_tx_queues(void) 18286c85f2bdSJiri Pirko { 18296c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_TX_QUEUES; 18306c85f2bdSJiri Pirko } 18316c85f2bdSJiri Pirko 18326c85f2bdSJiri Pirko static unsigned int team_get_num_rx_queues(void) 18336c85f2bdSJiri Pirko { 18346c85f2bdSJiri Pirko return TEAM_DEFAULT_NUM_RX_QUEUES; 18356c85f2bdSJiri Pirko } 18366c85f2bdSJiri Pirko 18373d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 18383d249d4cSJiri Pirko .kind = DRV_NAME, 18393d249d4cSJiri Pirko .priv_size = sizeof(struct team), 18403d249d4cSJiri Pirko .setup = team_setup, 18413d249d4cSJiri Pirko .newlink = team_newlink, 18423d249d4cSJiri Pirko .validate = team_validate, 18436c85f2bdSJiri Pirko .get_num_tx_queues = team_get_num_tx_queues, 18446c85f2bdSJiri Pirko .get_num_rx_queues = team_get_num_rx_queues, 18453d249d4cSJiri Pirko }; 18463d249d4cSJiri Pirko 18473d249d4cSJiri Pirko 18483d249d4cSJiri Pirko /*********************************** 18493d249d4cSJiri Pirko * Generic netlink custom interface 18503d249d4cSJiri Pirko ***********************************/ 18513d249d4cSJiri Pirko 18523d249d4cSJiri Pirko static struct genl_family team_nl_family = { 18533d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 18543d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 18553d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 18563d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 18573d249d4cSJiri Pirko .netnsok = true, 18583d249d4cSJiri Pirko }; 18593d249d4cSJiri Pirko 18603d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 18613d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 18623d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 18633d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 18643d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 18653d249d4cSJiri Pirko }; 18663d249d4cSJiri Pirko 18673d249d4cSJiri Pirko static const struct nla_policy 18683d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 18693d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 18703d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 18713d249d4cSJiri Pirko .type = NLA_STRING, 18723d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 18733d249d4cSJiri Pirko }, 18743d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 18753d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 18762615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 18773d249d4cSJiri Pirko }; 18783d249d4cSJiri Pirko 18793d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 18803d249d4cSJiri Pirko { 18813d249d4cSJiri Pirko struct sk_buff *msg; 18823d249d4cSJiri Pirko void *hdr; 18833d249d4cSJiri Pirko int err; 18843d249d4cSJiri Pirko 188558050fceSThomas Graf msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 18863d249d4cSJiri Pirko if (!msg) 18873d249d4cSJiri Pirko return -ENOMEM; 18883d249d4cSJiri Pirko 18893d249d4cSJiri Pirko hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, 18903d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 18913d249d4cSJiri Pirko if (IS_ERR(hdr)) { 18923d249d4cSJiri Pirko err = PTR_ERR(hdr); 18933d249d4cSJiri Pirko goto err_msg_put; 18943d249d4cSJiri Pirko } 18953d249d4cSJiri Pirko 18963d249d4cSJiri Pirko genlmsg_end(msg, hdr); 18973d249d4cSJiri Pirko 18983d249d4cSJiri Pirko return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); 18993d249d4cSJiri Pirko 19003d249d4cSJiri Pirko err_msg_put: 19013d249d4cSJiri Pirko nlmsg_free(msg); 19023d249d4cSJiri Pirko 19033d249d4cSJiri Pirko return err; 19043d249d4cSJiri Pirko } 19053d249d4cSJiri Pirko 19063d249d4cSJiri Pirko /* 19073d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 19088c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 19093d249d4cSJiri Pirko */ 19103d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 19113d249d4cSJiri Pirko { 19123d249d4cSJiri Pirko struct net *net = genl_info_net(info); 19133d249d4cSJiri Pirko int ifindex; 19143d249d4cSJiri Pirko struct net_device *dev; 19153d249d4cSJiri Pirko struct team *team; 19163d249d4cSJiri Pirko 19173d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 19183d249d4cSJiri Pirko return NULL; 19193d249d4cSJiri Pirko 19203d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 19218c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 19223d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 19238c0713a5SJiri Pirko if (dev) 19248c0713a5SJiri Pirko dev_put(dev); 19253d249d4cSJiri Pirko return NULL; 19263d249d4cSJiri Pirko } 19273d249d4cSJiri Pirko 19283d249d4cSJiri Pirko team = netdev_priv(dev); 192961dc3461SJiri Pirko mutex_lock(&team->lock); 19303d249d4cSJiri Pirko return team; 19313d249d4cSJiri Pirko } 19323d249d4cSJiri Pirko 19333d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 19343d249d4cSJiri Pirko { 193561dc3461SJiri Pirko mutex_unlock(&team->lock); 19368c0713a5SJiri Pirko dev_put(team->dev); 19373d249d4cSJiri Pirko } 19383d249d4cSJiri Pirko 19393d249d4cSJiri Pirko static int team_nl_send_generic(struct genl_info *info, struct team *team, 19403d249d4cSJiri Pirko int (*fill_func)(struct sk_buff *skb, 19413d249d4cSJiri Pirko struct genl_info *info, 19423d249d4cSJiri Pirko int flags, struct team *team)) 19433d249d4cSJiri Pirko { 19443d249d4cSJiri Pirko struct sk_buff *skb; 19453d249d4cSJiri Pirko int err; 19463d249d4cSJiri Pirko 194758050fceSThomas Graf skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 19483d249d4cSJiri Pirko if (!skb) 19493d249d4cSJiri Pirko return -ENOMEM; 19503d249d4cSJiri Pirko 19513d249d4cSJiri Pirko err = fill_func(skb, info, NLM_F_ACK, team); 19523d249d4cSJiri Pirko if (err < 0) 19533d249d4cSJiri Pirko goto err_fill; 19543d249d4cSJiri Pirko 19553d249d4cSJiri Pirko err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); 19563d249d4cSJiri Pirko return err; 19573d249d4cSJiri Pirko 19583d249d4cSJiri Pirko err_fill: 19593d249d4cSJiri Pirko nlmsg_free(skb); 19603d249d4cSJiri Pirko return err; 19613d249d4cSJiri Pirko } 19623d249d4cSJiri Pirko 19639b00cf2dSJiri Pirko typedef int team_nl_send_func_t(struct sk_buff *skb, 19649b00cf2dSJiri Pirko struct team *team, u32 pid); 19659b00cf2dSJiri Pirko 19669b00cf2dSJiri Pirko static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 pid) 19679b00cf2dSJiri Pirko { 19689b00cf2dSJiri Pirko return genlmsg_unicast(dev_net(team->dev), skb, pid); 19699b00cf2dSJiri Pirko } 19709b00cf2dSJiri Pirko 197101048d9aSJiri Pirko static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, 197201048d9aSJiri Pirko struct team_option_inst *opt_inst) 19733d249d4cSJiri Pirko { 19743d249d4cSJiri Pirko struct nlattr *option_item; 197580f7c668SJiri Pirko struct team_option *option = opt_inst->option; 19769b00cf2dSJiri Pirko struct team_option_inst_info *opt_inst_info = &opt_inst->info; 197780f7c668SJiri Pirko struct team_gsetter_ctx ctx; 197801048d9aSJiri Pirko int err; 19793d249d4cSJiri Pirko 19809b00cf2dSJiri Pirko ctx.info = opt_inst_info; 19819b00cf2dSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 19829b00cf2dSJiri Pirko if (err) 19839b00cf2dSJiri Pirko return err; 19849b00cf2dSJiri Pirko 19853d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 19863d249d4cSJiri Pirko if (!option_item) 19879b00cf2dSJiri Pirko return -EMSGSIZE; 198885d59a87SJiri Pirko 19899b00cf2dSJiri Pirko if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 19909b00cf2dSJiri Pirko goto nest_cancel; 199185d59a87SJiri Pirko if (opt_inst_info->port && 199280f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 199385d59a87SJiri Pirko opt_inst_info->port->dev->ifindex)) 19949b00cf2dSJiri Pirko goto nest_cancel; 1995b1303326SJiri Pirko if (opt_inst->option->array_size && 1996b1303326SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, 199785d59a87SJiri Pirko opt_inst_info->array_index)) 19989b00cf2dSJiri Pirko goto nest_cancel; 199985d59a87SJiri Pirko 20003d249d4cSJiri Pirko switch (option->type) { 20013d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 200286ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 20039b00cf2dSJiri Pirko goto nest_cancel; 200401048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) 20059b00cf2dSJiri Pirko goto nest_cancel; 20063d249d4cSJiri Pirko break; 20073d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 200886ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 20099b00cf2dSJiri Pirko goto nest_cancel; 201086ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 201180f7c668SJiri Pirko ctx.data.str_val)) 20129b00cf2dSJiri Pirko goto nest_cancel; 20133d249d4cSJiri Pirko break; 20142615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 20152615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 20169b00cf2dSJiri Pirko goto nest_cancel; 201701048d9aSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, 201801048d9aSJiri Pirko ctx.data.bin_val.ptr)) 20199b00cf2dSJiri Pirko goto nest_cancel; 20202615598fSJiri Pirko break; 202114f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 202214f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 20239b00cf2dSJiri Pirko goto nest_cancel; 202414f066baSJiri Pirko if (ctx.data.bool_val && 202514f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 20269b00cf2dSJiri Pirko goto nest_cancel; 202714f066baSJiri Pirko break; 202869821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 202969821638SJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) 203069821638SJiri Pirko goto nest_cancel; 203169821638SJiri Pirko if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) 203269821638SJiri Pirko goto nest_cancel; 203369821638SJiri Pirko break; 20343d249d4cSJiri Pirko default: 20353d249d4cSJiri Pirko BUG(); 20363d249d4cSJiri Pirko } 20379b00cf2dSJiri Pirko if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 20389b00cf2dSJiri Pirko goto nest_cancel; 20399b00cf2dSJiri Pirko if (opt_inst->changed) { 20409b00cf2dSJiri Pirko if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 20419b00cf2dSJiri Pirko goto nest_cancel; 20429b00cf2dSJiri Pirko opt_inst->changed = false; 20439b00cf2dSJiri Pirko } 20443d249d4cSJiri Pirko nla_nest_end(skb, option_item); 204501048d9aSJiri Pirko return 0; 204601048d9aSJiri Pirko 20479b00cf2dSJiri Pirko nest_cancel: 20489b00cf2dSJiri Pirko nla_nest_cancel(skb, option_item); 20499b00cf2dSJiri Pirko return -EMSGSIZE; 205001048d9aSJiri Pirko } 205101048d9aSJiri Pirko 20529b00cf2dSJiri Pirko static int __send_and_alloc_skb(struct sk_buff **pskb, 20539b00cf2dSJiri Pirko struct team *team, u32 pid, 20549b00cf2dSJiri Pirko team_nl_send_func_t *send_func) 20559b00cf2dSJiri Pirko { 20569b00cf2dSJiri Pirko int err; 20579b00cf2dSJiri Pirko 20589b00cf2dSJiri Pirko if (*pskb) { 20599b00cf2dSJiri Pirko err = send_func(*pskb, team, pid); 20609b00cf2dSJiri Pirko if (err) 20619b00cf2dSJiri Pirko return err; 20629b00cf2dSJiri Pirko } 206358050fceSThomas Graf *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); 20649b00cf2dSJiri Pirko if (!*pskb) 20659b00cf2dSJiri Pirko return -ENOMEM; 20669b00cf2dSJiri Pirko return 0; 20679b00cf2dSJiri Pirko } 20689b00cf2dSJiri Pirko 20699b00cf2dSJiri Pirko static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq, 20709b00cf2dSJiri Pirko int flags, team_nl_send_func_t *send_func, 207101048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 207201048d9aSJiri Pirko { 207301048d9aSJiri Pirko struct nlattr *option_list; 20749b00cf2dSJiri Pirko struct nlmsghdr *nlh; 207501048d9aSJiri Pirko void *hdr; 207601048d9aSJiri Pirko struct team_option_inst *opt_inst; 207701048d9aSJiri Pirko int err; 20789b00cf2dSJiri Pirko struct sk_buff *skb = NULL; 20799b00cf2dSJiri Pirko bool incomplete; 20809b00cf2dSJiri Pirko int i; 208101048d9aSJiri Pirko 20829b00cf2dSJiri Pirko opt_inst = list_first_entry(sel_opt_inst_list, 20839b00cf2dSJiri Pirko struct team_option_inst, tmp_list); 20849b00cf2dSJiri Pirko 20859b00cf2dSJiri Pirko start_again: 20869b00cf2dSJiri Pirko err = __send_and_alloc_skb(&skb, team, pid, send_func); 20879b00cf2dSJiri Pirko if (err) 20889b00cf2dSJiri Pirko return err; 20899b00cf2dSJiri Pirko 20909b00cf2dSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI, 209101048d9aSJiri Pirko TEAM_CMD_OPTIONS_GET); 209201048d9aSJiri Pirko if (IS_ERR(hdr)) 209301048d9aSJiri Pirko return PTR_ERR(hdr); 209401048d9aSJiri Pirko 209501048d9aSJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 209601048d9aSJiri Pirko goto nla_put_failure; 209701048d9aSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 209801048d9aSJiri Pirko if (!option_list) 209901048d9aSJiri Pirko goto nla_put_failure; 210001048d9aSJiri Pirko 21019b00cf2dSJiri Pirko i = 0; 21029b00cf2dSJiri Pirko incomplete = false; 21039b00cf2dSJiri Pirko list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { 210401048d9aSJiri Pirko err = team_nl_fill_one_option_get(skb, team, opt_inst); 21059b00cf2dSJiri Pirko if (err) { 21069b00cf2dSJiri Pirko if (err == -EMSGSIZE) { 21079b00cf2dSJiri Pirko if (!i) 210801048d9aSJiri Pirko goto errout; 21099b00cf2dSJiri Pirko incomplete = true; 21109b00cf2dSJiri Pirko break; 21119b00cf2dSJiri Pirko } 21129b00cf2dSJiri Pirko goto errout; 21139b00cf2dSJiri Pirko } 21149b00cf2dSJiri Pirko i++; 21153d249d4cSJiri Pirko } 21163d249d4cSJiri Pirko 21173d249d4cSJiri Pirko nla_nest_end(skb, option_list); 21189b00cf2dSJiri Pirko genlmsg_end(skb, hdr); 21199b00cf2dSJiri Pirko if (incomplete) 21209b00cf2dSJiri Pirko goto start_again; 21219b00cf2dSJiri Pirko 21229b00cf2dSJiri Pirko send_done: 21239b00cf2dSJiri Pirko nlh = nlmsg_put(skb, pid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); 21249b00cf2dSJiri Pirko if (!nlh) { 21259b00cf2dSJiri Pirko err = __send_and_alloc_skb(&skb, team, pid, send_func); 21269b00cf2dSJiri Pirko if (err) 21279b00cf2dSJiri Pirko goto errout; 21289b00cf2dSJiri Pirko goto send_done; 21299b00cf2dSJiri Pirko } 21309b00cf2dSJiri Pirko 21319b00cf2dSJiri Pirko return send_func(skb, team, pid); 21323d249d4cSJiri Pirko 21333d249d4cSJiri Pirko nla_put_failure: 213480f7c668SJiri Pirko err = -EMSGSIZE; 213580f7c668SJiri Pirko errout: 21363d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 21379b00cf2dSJiri Pirko nlmsg_free(skb); 213880f7c668SJiri Pirko return err; 21393d249d4cSJiri Pirko } 21403d249d4cSJiri Pirko 21413d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 21423d249d4cSJiri Pirko { 21433d249d4cSJiri Pirko struct team *team; 21449b00cf2dSJiri Pirko struct team_option_inst *opt_inst; 21453d249d4cSJiri Pirko int err; 21469b00cf2dSJiri Pirko LIST_HEAD(sel_opt_inst_list); 21473d249d4cSJiri Pirko 21483d249d4cSJiri Pirko team = team_nl_team_get(info); 21493d249d4cSJiri Pirko if (!team) 21503d249d4cSJiri Pirko return -EINVAL; 21513d249d4cSJiri Pirko 21529b00cf2dSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) 21539b00cf2dSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 21549b00cf2dSJiri Pirko err = team_nl_send_options_get(team, info->snd_pid, info->snd_seq, 21559b00cf2dSJiri Pirko NLM_F_ACK, team_nl_send_unicast, 21569b00cf2dSJiri Pirko &sel_opt_inst_list); 21573d249d4cSJiri Pirko 21583d249d4cSJiri Pirko team_nl_team_put(team); 21593d249d4cSJiri Pirko 21603d249d4cSJiri Pirko return err; 21613d249d4cSJiri Pirko } 21623d249d4cSJiri Pirko 21632fcdb2c9SJiri Pirko static int team_nl_send_event_options_get(struct team *team, 21642fcdb2c9SJiri Pirko struct list_head *sel_opt_inst_list); 21652fcdb2c9SJiri Pirko 21663d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 21673d249d4cSJiri Pirko { 21683d249d4cSJiri Pirko struct team *team; 21693d249d4cSJiri Pirko int err = 0; 21703d249d4cSJiri Pirko int i; 21713d249d4cSJiri Pirko struct nlattr *nl_option; 21722fcdb2c9SJiri Pirko LIST_HEAD(opt_inst_list); 21733d249d4cSJiri Pirko 21743d249d4cSJiri Pirko team = team_nl_team_get(info); 21753d249d4cSJiri Pirko if (!team) 21763d249d4cSJiri Pirko return -EINVAL; 21773d249d4cSJiri Pirko 21783d249d4cSJiri Pirko err = -EINVAL; 21793d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 21803d249d4cSJiri Pirko err = -EINVAL; 21813d249d4cSJiri Pirko goto team_put; 21823d249d4cSJiri Pirko } 21833d249d4cSJiri Pirko 21843d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 218580f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 2186b1303326SJiri Pirko struct nlattr *attr; 218714f066baSJiri Pirko struct nlattr *attr_data; 21883d249d4cSJiri Pirko enum team_option_type opt_type; 218980f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 2190b1303326SJiri Pirko u32 opt_array_index = 0; 2191b1303326SJiri Pirko bool opt_is_array = false; 219280f7c668SJiri Pirko struct team_option_inst *opt_inst; 21933d249d4cSJiri Pirko char *opt_name; 21943d249d4cSJiri Pirko bool opt_found = false; 21953d249d4cSJiri Pirko 21963d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 21973d249d4cSJiri Pirko err = -EINVAL; 21983d249d4cSJiri Pirko goto team_put; 21993d249d4cSJiri Pirko } 220080f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 22013d249d4cSJiri Pirko nl_option, team_nl_option_policy); 22023d249d4cSJiri Pirko if (err) 22033d249d4cSJiri Pirko goto team_put; 220480f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 220514f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 22063d249d4cSJiri Pirko err = -EINVAL; 22073d249d4cSJiri Pirko goto team_put; 22083d249d4cSJiri Pirko } 220980f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 22103d249d4cSJiri Pirko case NLA_U32: 22113d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 22123d249d4cSJiri Pirko break; 22133d249d4cSJiri Pirko case NLA_STRING: 22143d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 22153d249d4cSJiri Pirko break; 22162615598fSJiri Pirko case NLA_BINARY: 22172615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 22182615598fSJiri Pirko break; 221914f066baSJiri Pirko case NLA_FLAG: 222014f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 222114f066baSJiri Pirko break; 222269821638SJiri Pirko case NLA_S32: 222369821638SJiri Pirko opt_type = TEAM_OPTION_TYPE_S32; 222469821638SJiri Pirko break; 22253d249d4cSJiri Pirko default: 22263d249d4cSJiri Pirko goto team_put; 22273d249d4cSJiri Pirko } 22283d249d4cSJiri Pirko 222914f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 223014f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 223114f066baSJiri Pirko err = -EINVAL; 223214f066baSJiri Pirko goto team_put; 223314f066baSJiri Pirko } 223414f066baSJiri Pirko 223580f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 2236b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 2237b1303326SJiri Pirko if (attr) 2238b1303326SJiri Pirko opt_port_ifindex = nla_get_u32(attr); 2239b1303326SJiri Pirko 2240b1303326SJiri Pirko attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; 2241b1303326SJiri Pirko if (attr) { 2242b1303326SJiri Pirko opt_is_array = true; 2243b1303326SJiri Pirko opt_array_index = nla_get_u32(attr); 2244b1303326SJiri Pirko } 22453d249d4cSJiri Pirko 224680f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 224780f7c668SJiri Pirko struct team_option *option = opt_inst->option; 224880f7c668SJiri Pirko struct team_gsetter_ctx ctx; 224985d59a87SJiri Pirko struct team_option_inst_info *opt_inst_info; 225080f7c668SJiri Pirko int tmp_ifindex; 225180f7c668SJiri Pirko 225285d59a87SJiri Pirko opt_inst_info = &opt_inst->info; 225385d59a87SJiri Pirko tmp_ifindex = opt_inst_info->port ? 225485d59a87SJiri Pirko opt_inst_info->port->dev->ifindex : 0; 22553d249d4cSJiri Pirko if (option->type != opt_type || 225680f7c668SJiri Pirko strcmp(option->name, opt_name) || 2257b1303326SJiri Pirko tmp_ifindex != opt_port_ifindex || 2258b1303326SJiri Pirko (option->array_size && !opt_is_array) || 225985d59a87SJiri Pirko opt_inst_info->array_index != opt_array_index) 22603d249d4cSJiri Pirko continue; 22613d249d4cSJiri Pirko opt_found = true; 226285d59a87SJiri Pirko ctx.info = opt_inst_info; 22633d249d4cSJiri Pirko switch (opt_type) { 22643d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 226514f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 22663d249d4cSJiri Pirko break; 22673d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 226814f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 22692615598fSJiri Pirko err = -EINVAL; 22702615598fSJiri Pirko goto team_put; 22712615598fSJiri Pirko } 227214f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 22733d249d4cSJiri Pirko break; 22742615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 227514f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 227614f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 227714f066baSJiri Pirko break; 227814f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 227914f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 22802615598fSJiri Pirko break; 228169821638SJiri Pirko case TEAM_OPTION_TYPE_S32: 228269821638SJiri Pirko ctx.data.s32_val = nla_get_s32(attr_data); 228369821638SJiri Pirko break; 22843d249d4cSJiri Pirko default: 22853d249d4cSJiri Pirko BUG(); 22863d249d4cSJiri Pirko } 228780f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 22883d249d4cSJiri Pirko if (err) 22893d249d4cSJiri Pirko goto team_put; 22902fcdb2c9SJiri Pirko opt_inst->changed = true; 22912fcdb2c9SJiri Pirko list_add(&opt_inst->tmp_list, &opt_inst_list); 22923d249d4cSJiri Pirko } 22933d249d4cSJiri Pirko if (!opt_found) { 22943d249d4cSJiri Pirko err = -ENOENT; 22953d249d4cSJiri Pirko goto team_put; 22963d249d4cSJiri Pirko } 22973d249d4cSJiri Pirko } 22983d249d4cSJiri Pirko 22992fcdb2c9SJiri Pirko err = team_nl_send_event_options_get(team, &opt_inst_list); 23002fcdb2c9SJiri Pirko 23013d249d4cSJiri Pirko team_put: 23023d249d4cSJiri Pirko team_nl_team_put(team); 23033d249d4cSJiri Pirko 23043d249d4cSJiri Pirko return err; 23053d249d4cSJiri Pirko } 23063d249d4cSJiri Pirko 2307b82b9183SJiri Pirko static int team_nl_fill_port_list_get(struct sk_buff *skb, 23083d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 23093d249d4cSJiri Pirko struct team *team, 2310b82b9183SJiri Pirko bool fillall) 23113d249d4cSJiri Pirko { 23123d249d4cSJiri Pirko struct nlattr *port_list; 23133d249d4cSJiri Pirko void *hdr; 23143d249d4cSJiri Pirko struct team_port *port; 23153d249d4cSJiri Pirko 23163d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 23173d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 23183d249d4cSJiri Pirko if (IS_ERR(hdr)) 23193d249d4cSJiri Pirko return PTR_ERR(hdr); 23203d249d4cSJiri Pirko 232186ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 232286ebb02dSDavid S. Miller goto nla_put_failure; 23233d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 23243d249d4cSJiri Pirko if (!port_list) 23253221c646SJiri Pirko goto nla_put_failure; 23263d249d4cSJiri Pirko 23273d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 23283d249d4cSJiri Pirko struct nlattr *port_item; 23293d249d4cSJiri Pirko 2330b82b9183SJiri Pirko /* Include only changed ports if fill all mode is not on */ 2331b82b9183SJiri Pirko if (!fillall && !port->changed) 2332b82b9183SJiri Pirko continue; 23333d249d4cSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 23343d249d4cSJiri Pirko if (!port_item) 23353d249d4cSJiri Pirko goto nla_put_failure; 233686ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 233786ebb02dSDavid S. Miller goto nla_put_failure; 2338b82b9183SJiri Pirko if (port->changed) { 233986ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 234086ebb02dSDavid S. Miller goto nla_put_failure; 2341b82b9183SJiri Pirko port->changed = false; 2342b82b9183SJiri Pirko } 234386ebb02dSDavid S. Miller if ((port->removed && 234486ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 234571472ec1SJiri Pirko (port->state.linkup && 234686ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 234771472ec1SJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 234871472ec1SJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 234986ebb02dSDavid S. Miller goto nla_put_failure; 23503d249d4cSJiri Pirko nla_nest_end(skb, port_item); 23513d249d4cSJiri Pirko } 23523d249d4cSJiri Pirko 23533d249d4cSJiri Pirko nla_nest_end(skb, port_list); 23543d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 23553d249d4cSJiri Pirko 23563d249d4cSJiri Pirko nla_put_failure: 23573d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 23583d249d4cSJiri Pirko return -EMSGSIZE; 23593d249d4cSJiri Pirko } 23603d249d4cSJiri Pirko 2361b82b9183SJiri Pirko static int team_nl_fill_port_list_get_all(struct sk_buff *skb, 23623d249d4cSJiri Pirko struct genl_info *info, int flags, 23633d249d4cSJiri Pirko struct team *team) 23643d249d4cSJiri Pirko { 2365b82b9183SJiri Pirko return team_nl_fill_port_list_get(skb, info->snd_pid, 23663d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 2367b82b9183SJiri Pirko team, true); 23683d249d4cSJiri Pirko } 23693d249d4cSJiri Pirko 23703d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 23713d249d4cSJiri Pirko struct genl_info *info) 23723d249d4cSJiri Pirko { 23733d249d4cSJiri Pirko struct team *team; 23743d249d4cSJiri Pirko int err; 23753d249d4cSJiri Pirko 23763d249d4cSJiri Pirko team = team_nl_team_get(info); 23773d249d4cSJiri Pirko if (!team) 23783d249d4cSJiri Pirko return -EINVAL; 23793d249d4cSJiri Pirko 2380b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_port_list_get_all); 23813d249d4cSJiri Pirko 23823d249d4cSJiri Pirko team_nl_team_put(team); 23833d249d4cSJiri Pirko 23843d249d4cSJiri Pirko return err; 23853d249d4cSJiri Pirko } 23863d249d4cSJiri Pirko 23873d249d4cSJiri Pirko static struct genl_ops team_nl_ops[] = { 23883d249d4cSJiri Pirko { 23893d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 23903d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 23913d249d4cSJiri Pirko .policy = team_nl_policy, 23923d249d4cSJiri Pirko }, 23933d249d4cSJiri Pirko { 23943d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 23953d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 23963d249d4cSJiri Pirko .policy = team_nl_policy, 23973d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 23983d249d4cSJiri Pirko }, 23993d249d4cSJiri Pirko { 24003d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 24013d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 24023d249d4cSJiri Pirko .policy = team_nl_policy, 24033d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 24043d249d4cSJiri Pirko }, 24053d249d4cSJiri Pirko { 24063d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 24073d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 24083d249d4cSJiri Pirko .policy = team_nl_policy, 24093d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 24103d249d4cSJiri Pirko }, 24113d249d4cSJiri Pirko }; 24123d249d4cSJiri Pirko 24133d249d4cSJiri Pirko static struct genl_multicast_group team_change_event_mcgrp = { 24143d249d4cSJiri Pirko .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, 24153d249d4cSJiri Pirko }; 24163d249d4cSJiri Pirko 24179b00cf2dSJiri Pirko static int team_nl_send_multicast(struct sk_buff *skb, 24189b00cf2dSJiri Pirko struct team *team, u32 pid) 24199b00cf2dSJiri Pirko { 24209b00cf2dSJiri Pirko return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, 24219b00cf2dSJiri Pirko team_change_event_mcgrp.id, GFP_KERNEL); 24229b00cf2dSJiri Pirko } 24239b00cf2dSJiri Pirko 242401048d9aSJiri Pirko static int team_nl_send_event_options_get(struct team *team, 242501048d9aSJiri Pirko struct list_head *sel_opt_inst_list) 24263d249d4cSJiri Pirko { 24279b00cf2dSJiri Pirko return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, 24289b00cf2dSJiri Pirko sel_opt_inst_list); 24293d249d4cSJiri Pirko } 24303d249d4cSJiri Pirko 2431b82b9183SJiri Pirko static int team_nl_send_event_port_list_get(struct team *team) 24323d249d4cSJiri Pirko { 24333d249d4cSJiri Pirko struct sk_buff *skb; 24343d249d4cSJiri Pirko int err; 2435b82b9183SJiri Pirko struct net *net = dev_net(team->dev); 24363d249d4cSJiri Pirko 243758050fceSThomas Graf skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); 24383d249d4cSJiri Pirko if (!skb) 24393d249d4cSJiri Pirko return -ENOMEM; 24403d249d4cSJiri Pirko 2441b82b9183SJiri Pirko err = team_nl_fill_port_list_get(skb, 0, 0, 0, team, false); 24423d249d4cSJiri Pirko if (err < 0) 24433d249d4cSJiri Pirko goto err_fill; 24443d249d4cSJiri Pirko 24453d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 24463d249d4cSJiri Pirko GFP_KERNEL); 24473d249d4cSJiri Pirko return err; 24483d249d4cSJiri Pirko 24493d249d4cSJiri Pirko err_fill: 24503d249d4cSJiri Pirko nlmsg_free(skb); 24513d249d4cSJiri Pirko return err; 24523d249d4cSJiri Pirko } 24533d249d4cSJiri Pirko 24543d249d4cSJiri Pirko static int team_nl_init(void) 24553d249d4cSJiri Pirko { 24563d249d4cSJiri Pirko int err; 24573d249d4cSJiri Pirko 24583d249d4cSJiri Pirko err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, 24593d249d4cSJiri Pirko ARRAY_SIZE(team_nl_ops)); 24603d249d4cSJiri Pirko if (err) 24613d249d4cSJiri Pirko return err; 24623d249d4cSJiri Pirko 24633d249d4cSJiri Pirko err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); 24643d249d4cSJiri Pirko if (err) 24653d249d4cSJiri Pirko goto err_change_event_grp_reg; 24663d249d4cSJiri Pirko 24673d249d4cSJiri Pirko return 0; 24683d249d4cSJiri Pirko 24693d249d4cSJiri Pirko err_change_event_grp_reg: 24703d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 24713d249d4cSJiri Pirko 24723d249d4cSJiri Pirko return err; 24733d249d4cSJiri Pirko } 24743d249d4cSJiri Pirko 24753d249d4cSJiri Pirko static void team_nl_fini(void) 24763d249d4cSJiri Pirko { 24773d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 24783d249d4cSJiri Pirko } 24793d249d4cSJiri Pirko 24803d249d4cSJiri Pirko 24813d249d4cSJiri Pirko /****************** 24823d249d4cSJiri Pirko * Change checkers 24833d249d4cSJiri Pirko ******************/ 24843d249d4cSJiri Pirko 2485b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 24863d249d4cSJiri Pirko { 24873d249d4cSJiri Pirko int err; 248801048d9aSJiri Pirko struct team_option_inst *opt_inst; 248901048d9aSJiri Pirko LIST_HEAD(sel_opt_inst_list); 24903d249d4cSJiri Pirko 249101048d9aSJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 249201048d9aSJiri Pirko if (opt_inst->changed) 249301048d9aSJiri Pirko list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); 249401048d9aSJiri Pirko } 249501048d9aSJiri Pirko err = team_nl_send_event_options_get(team, &sel_opt_inst_list); 24960c7517e9SJiri Pirko if (err && err != -ESRCH) 24979b00cf2dSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", 24989b00cf2dSJiri Pirko err); 24993d249d4cSJiri Pirko } 25003d249d4cSJiri Pirko 25013d249d4cSJiri Pirko /* rtnl lock is held */ 25023d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 25033d249d4cSJiri Pirko { 25043d249d4cSJiri Pirko int err; 25053d249d4cSJiri Pirko 250671472ec1SJiri Pirko if (!port->removed && port->state.linkup == linkup) 25073d249d4cSJiri Pirko return; 25083d249d4cSJiri Pirko 2509b82b9183SJiri Pirko port->changed = true; 251071472ec1SJiri Pirko port->state.linkup = linkup; 251171472ec1SJiri Pirko team_refresh_port_linkup(port); 25123d249d4cSJiri Pirko if (linkup) { 25133d249d4cSJiri Pirko struct ethtool_cmd ecmd; 25143d249d4cSJiri Pirko 25153d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 25163d249d4cSJiri Pirko if (!err) { 251771472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 251871472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 25193d249d4cSJiri Pirko goto send_event; 25203d249d4cSJiri Pirko } 25213d249d4cSJiri Pirko } 252271472ec1SJiri Pirko port->state.speed = 0; 252371472ec1SJiri Pirko port->state.duplex = 0; 25243d249d4cSJiri Pirko 25253d249d4cSJiri Pirko send_event: 2526b82b9183SJiri Pirko err = team_nl_send_event_port_list_get(port->team); 25270c7517e9SJiri Pirko if (err && err != -ESRCH) 25280c7517e9SJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", 25290c7517e9SJiri Pirko port->dev->name, err); 25303d249d4cSJiri Pirko 25313d249d4cSJiri Pirko } 25323d249d4cSJiri Pirko 25333d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 25343d249d4cSJiri Pirko { 25353d249d4cSJiri Pirko struct team *team = port->team; 25363d249d4cSJiri Pirko 253761dc3461SJiri Pirko mutex_lock(&team->lock); 25383d249d4cSJiri Pirko __team_port_change_check(port, linkup); 253961dc3461SJiri Pirko mutex_unlock(&team->lock); 25403d249d4cSJiri Pirko } 25413d249d4cSJiri Pirko 25420f1aad2bSJiri Pirko 25433d249d4cSJiri Pirko /************************************ 25443d249d4cSJiri Pirko * Net device notifier event handler 25453d249d4cSJiri Pirko ************************************/ 25463d249d4cSJiri Pirko 25473d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 25483d249d4cSJiri Pirko unsigned long event, void *ptr) 25493d249d4cSJiri Pirko { 25503d249d4cSJiri Pirko struct net_device *dev = (struct net_device *) ptr; 25513d249d4cSJiri Pirko struct team_port *port; 25523d249d4cSJiri Pirko 25533d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 25543d249d4cSJiri Pirko if (!port) 25553d249d4cSJiri Pirko return NOTIFY_DONE; 25563d249d4cSJiri Pirko 25573d249d4cSJiri Pirko switch (event) { 25583d249d4cSJiri Pirko case NETDEV_UP: 25593d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 25603d249d4cSJiri Pirko team_port_change_check(port, true); 25613d249d4cSJiri Pirko case NETDEV_DOWN: 25623d249d4cSJiri Pirko team_port_change_check(port, false); 25633d249d4cSJiri Pirko case NETDEV_CHANGE: 25643d249d4cSJiri Pirko if (netif_running(port->dev)) 25653d249d4cSJiri Pirko team_port_change_check(port, 25663d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 25673d249d4cSJiri Pirko break; 25683d249d4cSJiri Pirko case NETDEV_UNREGISTER: 25693d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 25703d249d4cSJiri Pirko break; 25713d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 25723d249d4cSJiri Pirko team_compute_features(port->team); 25733d249d4cSJiri Pirko break; 25743d249d4cSJiri Pirko case NETDEV_CHANGEMTU: 25753d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 25763d249d4cSJiri Pirko return NOTIFY_BAD; 25773d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 25783d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 25793d249d4cSJiri Pirko return NOTIFY_BAD; 25803d249d4cSJiri Pirko } 25813d249d4cSJiri Pirko return NOTIFY_DONE; 25823d249d4cSJiri Pirko } 25833d249d4cSJiri Pirko 25843d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 25853d249d4cSJiri Pirko .notifier_call = team_device_event, 25863d249d4cSJiri Pirko }; 25873d249d4cSJiri Pirko 25883d249d4cSJiri Pirko 25893d249d4cSJiri Pirko /*********************** 25903d249d4cSJiri Pirko * Module init and exit 25913d249d4cSJiri Pirko ***********************/ 25923d249d4cSJiri Pirko 25933d249d4cSJiri Pirko static int __init team_module_init(void) 25943d249d4cSJiri Pirko { 25953d249d4cSJiri Pirko int err; 25963d249d4cSJiri Pirko 25973d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 25983d249d4cSJiri Pirko 25993d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 26003d249d4cSJiri Pirko if (err) 26013d249d4cSJiri Pirko goto err_rtnl_reg; 26023d249d4cSJiri Pirko 26033d249d4cSJiri Pirko err = team_nl_init(); 26043d249d4cSJiri Pirko if (err) 26053d249d4cSJiri Pirko goto err_nl_init; 26063d249d4cSJiri Pirko 26073d249d4cSJiri Pirko return 0; 26083d249d4cSJiri Pirko 26093d249d4cSJiri Pirko err_nl_init: 26103d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 26113d249d4cSJiri Pirko 26123d249d4cSJiri Pirko err_rtnl_reg: 26133d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 26143d249d4cSJiri Pirko 26153d249d4cSJiri Pirko return err; 26163d249d4cSJiri Pirko } 26173d249d4cSJiri Pirko 26183d249d4cSJiri Pirko static void __exit team_module_exit(void) 26193d249d4cSJiri Pirko { 26203d249d4cSJiri Pirko team_nl_fini(); 26213d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 26223d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 26233d249d4cSJiri Pirko } 26243d249d4cSJiri Pirko 26253d249d4cSJiri Pirko module_init(team_module_init); 26263d249d4cSJiri Pirko module_exit(team_module_exit); 26273d249d4cSJiri Pirko 26283d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 26293d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 26303d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 26313d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2632