13d249d4cSJiri Pirko /* 23d249d4cSJiri Pirko * net/drivers/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> 2187002b03SJiri Pirko #include <linux/if_vlan.h> 223d249d4cSJiri Pirko #include <linux/if_arp.h> 233d249d4cSJiri Pirko #include <linux/socket.h> 243d249d4cSJiri Pirko #include <linux/etherdevice.h> 253d249d4cSJiri Pirko #include <linux/rtnetlink.h> 263d249d4cSJiri Pirko #include <net/rtnetlink.h> 273d249d4cSJiri Pirko #include <net/genetlink.h> 283d249d4cSJiri Pirko #include <net/netlink.h> 293d249d4cSJiri Pirko #include <linux/if_team.h> 303d249d4cSJiri Pirko 313d249d4cSJiri Pirko #define DRV_NAME "team" 323d249d4cSJiri Pirko 333d249d4cSJiri Pirko 343d249d4cSJiri Pirko /********** 353d249d4cSJiri Pirko * Helpers 363d249d4cSJiri Pirko **********/ 373d249d4cSJiri Pirko 383d249d4cSJiri Pirko #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) 393d249d4cSJiri Pirko 403d249d4cSJiri Pirko static struct team_port *team_port_get_rcu(const struct net_device *dev) 413d249d4cSJiri Pirko { 423d249d4cSJiri Pirko struct team_port *port = rcu_dereference(dev->rx_handler_data); 433d249d4cSJiri Pirko 443d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 453d249d4cSJiri Pirko } 463d249d4cSJiri Pirko 473d249d4cSJiri Pirko static struct team_port *team_port_get_rtnl(const struct net_device *dev) 483d249d4cSJiri Pirko { 493d249d4cSJiri Pirko struct team_port *port = rtnl_dereference(dev->rx_handler_data); 503d249d4cSJiri Pirko 513d249d4cSJiri Pirko return team_port_exists(dev) ? port : NULL; 523d249d4cSJiri Pirko } 533d249d4cSJiri Pirko 543d249d4cSJiri Pirko /* 553d249d4cSJiri Pirko * Since the ability to change mac address for open port device is tested in 563d249d4cSJiri Pirko * team_port_add, this function can be called without control of return value 573d249d4cSJiri Pirko */ 583d249d4cSJiri Pirko static int __set_port_mac(struct net_device *port_dev, 593d249d4cSJiri Pirko const unsigned char *dev_addr) 603d249d4cSJiri Pirko { 613d249d4cSJiri Pirko struct sockaddr addr; 623d249d4cSJiri Pirko 633d249d4cSJiri Pirko memcpy(addr.sa_data, dev_addr, ETH_ALEN); 643d249d4cSJiri Pirko addr.sa_family = ARPHRD_ETHER; 653d249d4cSJiri Pirko return dev_set_mac_address(port_dev, &addr); 663d249d4cSJiri Pirko } 673d249d4cSJiri Pirko 68cade4555SJiri Pirko static int team_port_set_orig_mac(struct team_port *port) 693d249d4cSJiri Pirko { 703d249d4cSJiri Pirko return __set_port_mac(port->dev, port->orig.dev_addr); 713d249d4cSJiri Pirko } 723d249d4cSJiri Pirko 733d249d4cSJiri Pirko int team_port_set_team_mac(struct team_port *port) 743d249d4cSJiri Pirko { 753d249d4cSJiri Pirko return __set_port_mac(port->dev, port->team->dev->dev_addr); 763d249d4cSJiri Pirko } 773d249d4cSJiri Pirko EXPORT_SYMBOL(team_port_set_team_mac); 783d249d4cSJiri Pirko 7971472ec1SJiri Pirko static void team_refresh_port_linkup(struct team_port *port) 8071472ec1SJiri Pirko { 8171472ec1SJiri Pirko port->linkup = port->user.linkup_enabled ? port->user.linkup : 8271472ec1SJiri Pirko port->state.linkup; 8371472ec1SJiri Pirko } 843d249d4cSJiri Pirko 853d249d4cSJiri Pirko /******************* 863d249d4cSJiri Pirko * Options handling 873d249d4cSJiri Pirko *******************/ 883d249d4cSJiri Pirko 8980f7c668SJiri Pirko struct team_option_inst { /* One for each option instance */ 9080f7c668SJiri Pirko struct list_head list; 9180f7c668SJiri Pirko struct team_option *option; 9280f7c668SJiri Pirko struct team_port *port; /* != NULL if per-port */ 9380f7c668SJiri Pirko bool changed; 9480f7c668SJiri Pirko bool removed; 9580f7c668SJiri Pirko }; 9680f7c668SJiri Pirko 9780f7c668SJiri Pirko static struct team_option *__team_find_option(struct team *team, 9880f7c668SJiri Pirko const char *opt_name) 99358b8382SJiri Pirko { 100358b8382SJiri Pirko struct team_option *option; 101358b8382SJiri Pirko 102358b8382SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 103358b8382SJiri Pirko if (strcmp(option->name, opt_name) == 0) 104358b8382SJiri Pirko return option; 105358b8382SJiri Pirko } 106358b8382SJiri Pirko return NULL; 107358b8382SJiri Pirko } 108358b8382SJiri Pirko 10980f7c668SJiri Pirko static int __team_option_inst_add(struct team *team, struct team_option *option, 11080f7c668SJiri Pirko struct team_port *port) 11180f7c668SJiri Pirko { 11280f7c668SJiri Pirko struct team_option_inst *opt_inst; 11380f7c668SJiri Pirko 11480f7c668SJiri Pirko opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); 11580f7c668SJiri Pirko if (!opt_inst) 11680f7c668SJiri Pirko return -ENOMEM; 11780f7c668SJiri Pirko opt_inst->option = option; 11880f7c668SJiri Pirko opt_inst->port = port; 11980f7c668SJiri Pirko opt_inst->changed = true; 12080f7c668SJiri Pirko opt_inst->removed = false; 12180f7c668SJiri Pirko list_add_tail(&opt_inst->list, &team->option_inst_list); 12280f7c668SJiri Pirko return 0; 12380f7c668SJiri Pirko } 12480f7c668SJiri Pirko 12580f7c668SJiri Pirko static void __team_option_inst_del(struct team_option_inst *opt_inst) 12680f7c668SJiri Pirko { 12780f7c668SJiri Pirko list_del(&opt_inst->list); 12880f7c668SJiri Pirko kfree(opt_inst); 12980f7c668SJiri Pirko } 13080f7c668SJiri Pirko 13180f7c668SJiri Pirko static void __team_option_inst_del_option(struct team *team, 13280f7c668SJiri Pirko struct team_option *option) 13380f7c668SJiri Pirko { 13480f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 13580f7c668SJiri Pirko 13680f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 13780f7c668SJiri Pirko if (opt_inst->option == option) 13880f7c668SJiri Pirko __team_option_inst_del(opt_inst); 13980f7c668SJiri Pirko } 14080f7c668SJiri Pirko } 14180f7c668SJiri Pirko 14280f7c668SJiri Pirko static int __team_option_inst_add_option(struct team *team, 14380f7c668SJiri Pirko struct team_option *option) 14480f7c668SJiri Pirko { 14580f7c668SJiri Pirko struct team_port *port; 14680f7c668SJiri Pirko int err; 14780f7c668SJiri Pirko 14880f7c668SJiri Pirko if (!option->per_port) 14980f7c668SJiri Pirko return __team_option_inst_add(team, option, 0); 15080f7c668SJiri Pirko 15180f7c668SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 15280f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 15380f7c668SJiri Pirko if (err) 15480f7c668SJiri Pirko goto inst_del_option; 15580f7c668SJiri Pirko } 15680f7c668SJiri Pirko return 0; 15780f7c668SJiri Pirko 15880f7c668SJiri Pirko inst_del_option: 15980f7c668SJiri Pirko __team_option_inst_del_option(team, option); 16080f7c668SJiri Pirko return err; 16180f7c668SJiri Pirko } 16280f7c668SJiri Pirko 16380f7c668SJiri Pirko static void __team_option_inst_mark_removed_option(struct team *team, 16480f7c668SJiri Pirko struct team_option *option) 16580f7c668SJiri Pirko { 16680f7c668SJiri Pirko struct team_option_inst *opt_inst; 16780f7c668SJiri Pirko 16880f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 16980f7c668SJiri Pirko if (opt_inst->option == option) { 17080f7c668SJiri Pirko opt_inst->changed = true; 17180f7c668SJiri Pirko opt_inst->removed = true; 17280f7c668SJiri Pirko } 17380f7c668SJiri Pirko } 17480f7c668SJiri Pirko } 17580f7c668SJiri Pirko 17680f7c668SJiri Pirko static void __team_option_inst_del_port(struct team *team, 17780f7c668SJiri Pirko struct team_port *port) 17880f7c668SJiri Pirko { 17980f7c668SJiri Pirko struct team_option_inst *opt_inst, *tmp; 18080f7c668SJiri Pirko 18180f7c668SJiri Pirko list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { 18280f7c668SJiri Pirko if (opt_inst->option->per_port && 18380f7c668SJiri Pirko opt_inst->port == port) 18480f7c668SJiri Pirko __team_option_inst_del(opt_inst); 18580f7c668SJiri Pirko } 18680f7c668SJiri Pirko } 18780f7c668SJiri Pirko 18880f7c668SJiri Pirko static int __team_option_inst_add_port(struct team *team, 18980f7c668SJiri Pirko struct team_port *port) 19080f7c668SJiri Pirko { 19180f7c668SJiri Pirko struct team_option *option; 19280f7c668SJiri Pirko int err; 19380f7c668SJiri Pirko 19480f7c668SJiri Pirko list_for_each_entry(option, &team->option_list, list) { 19580f7c668SJiri Pirko if (!option->per_port) 19680f7c668SJiri Pirko continue; 19780f7c668SJiri Pirko err = __team_option_inst_add(team, option, port); 19880f7c668SJiri Pirko if (err) 19980f7c668SJiri Pirko goto inst_del_port; 20080f7c668SJiri Pirko } 20180f7c668SJiri Pirko return 0; 20280f7c668SJiri Pirko 20380f7c668SJiri Pirko inst_del_port: 20480f7c668SJiri Pirko __team_option_inst_del_port(team, port); 20580f7c668SJiri Pirko return err; 20680f7c668SJiri Pirko } 20780f7c668SJiri Pirko 20880f7c668SJiri Pirko static void __team_option_inst_mark_removed_port(struct team *team, 20980f7c668SJiri Pirko struct team_port *port) 21080f7c668SJiri Pirko { 21180f7c668SJiri Pirko struct team_option_inst *opt_inst; 21280f7c668SJiri Pirko 21380f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 21480f7c668SJiri Pirko if (opt_inst->port == port) { 21580f7c668SJiri Pirko opt_inst->changed = true; 21680f7c668SJiri Pirko opt_inst->removed = true; 21780f7c668SJiri Pirko } 21880f7c668SJiri Pirko } 21980f7c668SJiri Pirko } 22080f7c668SJiri Pirko 22180f7c668SJiri Pirko static int __team_options_register(struct team *team, 222358b8382SJiri Pirko const struct team_option *option, 2233d249d4cSJiri Pirko size_t option_count) 2243d249d4cSJiri Pirko { 2253d249d4cSJiri Pirko int i; 2262bba19ffSJiri Pirko struct team_option **dst_opts; 227358b8382SJiri Pirko int err; 2283d249d4cSJiri Pirko 2292bba19ffSJiri Pirko dst_opts = kzalloc(sizeof(struct team_option *) * option_count, 2302bba19ffSJiri Pirko GFP_KERNEL); 2312bba19ffSJiri Pirko if (!dst_opts) 2322bba19ffSJiri Pirko return -ENOMEM; 233358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 234358b8382SJiri Pirko if (__team_find_option(team, option->name)) { 235358b8382SJiri Pirko err = -EEXIST; 23680f7c668SJiri Pirko goto alloc_rollback; 2373d249d4cSJiri Pirko } 238f8a15af0SJiri Pirko dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); 239f8a15af0SJiri Pirko if (!dst_opts[i]) { 240358b8382SJiri Pirko err = -ENOMEM; 24180f7c668SJiri Pirko goto alloc_rollback; 242358b8382SJiri Pirko } 243358b8382SJiri Pirko } 244358b8382SJiri Pirko 245b82b9183SJiri Pirko for (i = 0; i < option_count; i++) { 24680f7c668SJiri Pirko err = __team_option_inst_add_option(team, dst_opts[i]); 24780f7c668SJiri Pirko if (err) 24880f7c668SJiri Pirko goto inst_rollback; 249358b8382SJiri Pirko list_add_tail(&dst_opts[i]->list, &team->option_list); 250b82b9183SJiri Pirko } 251358b8382SJiri Pirko 2522bba19ffSJiri Pirko kfree(dst_opts); 253358b8382SJiri Pirko return 0; 254358b8382SJiri Pirko 25580f7c668SJiri Pirko inst_rollback: 25680f7c668SJiri Pirko for (i--; i >= 0; i--) 25780f7c668SJiri Pirko __team_option_inst_del_option(team, dst_opts[i]); 25880f7c668SJiri Pirko 25980f7c668SJiri Pirko i = option_count - 1; 26080f7c668SJiri Pirko alloc_rollback: 26180f7c668SJiri Pirko for (i--; i >= 0; i--) 262358b8382SJiri Pirko kfree(dst_opts[i]); 263358b8382SJiri Pirko 2642bba19ffSJiri Pirko kfree(dst_opts); 265358b8382SJiri Pirko return err; 266358b8382SJiri Pirko } 267358b8382SJiri Pirko 268b82b9183SJiri Pirko static void __team_options_mark_removed(struct team *team, 269b82b9183SJiri Pirko const struct team_option *option, 270b82b9183SJiri Pirko size_t option_count) 271b82b9183SJiri Pirko { 272b82b9183SJiri Pirko int i; 2733d249d4cSJiri Pirko 274b82b9183SJiri Pirko for (i = 0; i < option_count; i++, option++) { 275b82b9183SJiri Pirko struct team_option *del_opt; 276b82b9183SJiri Pirko 277b82b9183SJiri Pirko del_opt = __team_find_option(team, option->name); 27880f7c668SJiri Pirko if (del_opt) 27980f7c668SJiri Pirko __team_option_inst_mark_removed_option(team, del_opt); 280b82b9183SJiri Pirko } 281b82b9183SJiri Pirko } 2823d249d4cSJiri Pirko 2833d249d4cSJiri Pirko static void __team_options_unregister(struct team *team, 284358b8382SJiri Pirko const struct team_option *option, 2853d249d4cSJiri Pirko size_t option_count) 2863d249d4cSJiri Pirko { 2873d249d4cSJiri Pirko int i; 2883d249d4cSJiri Pirko 289358b8382SJiri Pirko for (i = 0; i < option_count; i++, option++) { 290358b8382SJiri Pirko struct team_option *del_opt; 291358b8382SJiri Pirko 292358b8382SJiri Pirko del_opt = __team_find_option(team, option->name); 293358b8382SJiri Pirko if (del_opt) { 29480f7c668SJiri Pirko __team_option_inst_del_option(team, del_opt); 295358b8382SJiri Pirko list_del(&del_opt->list); 296358b8382SJiri Pirko kfree(del_opt); 297358b8382SJiri Pirko } 298358b8382SJiri Pirko } 2993d249d4cSJiri Pirko } 3003d249d4cSJiri Pirko 301b82b9183SJiri Pirko static void __team_options_change_check(struct team *team); 302b82b9183SJiri Pirko 303b82b9183SJiri Pirko int team_options_register(struct team *team, 304b82b9183SJiri Pirko const struct team_option *option, 305b82b9183SJiri Pirko size_t option_count) 306b82b9183SJiri Pirko { 307b82b9183SJiri Pirko int err; 308b82b9183SJiri Pirko 309b82b9183SJiri Pirko err = __team_options_register(team, option, option_count); 310b82b9183SJiri Pirko if (err) 311b82b9183SJiri Pirko return err; 312b82b9183SJiri Pirko __team_options_change_check(team); 313b82b9183SJiri Pirko return 0; 314b82b9183SJiri Pirko } 315b82b9183SJiri Pirko EXPORT_SYMBOL(team_options_register); 316b82b9183SJiri Pirko 317358b8382SJiri Pirko void team_options_unregister(struct team *team, 318358b8382SJiri Pirko const struct team_option *option, 3193d249d4cSJiri Pirko size_t option_count) 3203d249d4cSJiri Pirko { 321b82b9183SJiri Pirko __team_options_mark_removed(team, option, option_count); 322b82b9183SJiri Pirko __team_options_change_check(team); 3233d249d4cSJiri Pirko __team_options_unregister(team, option, option_count); 3243d249d4cSJiri Pirko } 3253d249d4cSJiri Pirko EXPORT_SYMBOL(team_options_unregister); 3263d249d4cSJiri Pirko 32780f7c668SJiri Pirko static int team_option_port_add(struct team *team, struct team_port *port) 3283d249d4cSJiri Pirko { 3293d249d4cSJiri Pirko int err; 3303d249d4cSJiri Pirko 33180f7c668SJiri Pirko err = __team_option_inst_add_port(team, port); 33280f7c668SJiri Pirko if (err) 33380f7c668SJiri Pirko return err; 33480f7c668SJiri Pirko __team_options_change_check(team); 33580f7c668SJiri Pirko return 0; 33680f7c668SJiri Pirko } 33780f7c668SJiri Pirko 33880f7c668SJiri Pirko static void team_option_port_del(struct team *team, struct team_port *port) 33980f7c668SJiri Pirko { 34080f7c668SJiri Pirko __team_option_inst_mark_removed_port(team, port); 34180f7c668SJiri Pirko __team_options_change_check(team); 34280f7c668SJiri Pirko __team_option_inst_del_port(team, port); 34380f7c668SJiri Pirko } 34480f7c668SJiri Pirko 34580f7c668SJiri Pirko static int team_option_get(struct team *team, 34680f7c668SJiri Pirko struct team_option_inst *opt_inst, 34780f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 34880f7c668SJiri Pirko { 349f82b959dSJiri Pirko if (!opt_inst->option->getter) 350f82b959dSJiri Pirko return -EOPNOTSUPP; 35180f7c668SJiri Pirko return opt_inst->option->getter(team, ctx); 35280f7c668SJiri Pirko } 35380f7c668SJiri Pirko 35480f7c668SJiri Pirko static int team_option_set(struct team *team, 35580f7c668SJiri Pirko struct team_option_inst *opt_inst, 35680f7c668SJiri Pirko struct team_gsetter_ctx *ctx) 35780f7c668SJiri Pirko { 35880f7c668SJiri Pirko int err; 35980f7c668SJiri Pirko 360f82b959dSJiri Pirko if (!opt_inst->option->setter) 361f82b959dSJiri Pirko return -EOPNOTSUPP; 36280f7c668SJiri Pirko err = opt_inst->option->setter(team, ctx); 3633d249d4cSJiri Pirko if (err) 3643d249d4cSJiri Pirko return err; 3653d249d4cSJiri Pirko 36680f7c668SJiri Pirko opt_inst->changed = true; 367b82b9183SJiri Pirko __team_options_change_check(team); 3683d249d4cSJiri Pirko return err; 3693d249d4cSJiri Pirko } 3703d249d4cSJiri Pirko 3713d249d4cSJiri Pirko /**************** 3723d249d4cSJiri Pirko * Mode handling 3733d249d4cSJiri Pirko ****************/ 3743d249d4cSJiri Pirko 3753d249d4cSJiri Pirko static LIST_HEAD(mode_list); 3763d249d4cSJiri Pirko static DEFINE_SPINLOCK(mode_list_lock); 3773d249d4cSJiri Pirko 3780402788aSJiri Pirko struct team_mode_item { 3790402788aSJiri Pirko struct list_head list; 3800402788aSJiri Pirko const struct team_mode *mode; 3810402788aSJiri Pirko }; 3823d249d4cSJiri Pirko 3830402788aSJiri Pirko static struct team_mode_item *__find_mode(const char *kind) 3840402788aSJiri Pirko { 3850402788aSJiri Pirko struct team_mode_item *mitem; 3860402788aSJiri Pirko 3870402788aSJiri Pirko list_for_each_entry(mitem, &mode_list, list) { 3880402788aSJiri Pirko if (strcmp(mitem->mode->kind, kind) == 0) 3890402788aSJiri Pirko return mitem; 3903d249d4cSJiri Pirko } 3913d249d4cSJiri Pirko return NULL; 3923d249d4cSJiri Pirko } 3933d249d4cSJiri Pirko 3943d249d4cSJiri Pirko static bool is_good_mode_name(const char *name) 3953d249d4cSJiri Pirko { 3963d249d4cSJiri Pirko while (*name != '\0') { 3973d249d4cSJiri Pirko if (!isalpha(*name) && !isdigit(*name) && *name != '_') 3983d249d4cSJiri Pirko return false; 3993d249d4cSJiri Pirko name++; 4003d249d4cSJiri Pirko } 4013d249d4cSJiri Pirko return true; 4023d249d4cSJiri Pirko } 4033d249d4cSJiri Pirko 4040402788aSJiri Pirko int team_mode_register(const struct team_mode *mode) 4053d249d4cSJiri Pirko { 4063d249d4cSJiri Pirko int err = 0; 4070402788aSJiri Pirko struct team_mode_item *mitem; 4083d249d4cSJiri Pirko 4093d249d4cSJiri Pirko if (!is_good_mode_name(mode->kind) || 4103d249d4cSJiri Pirko mode->priv_size > TEAM_MODE_PRIV_SIZE) 4113d249d4cSJiri Pirko return -EINVAL; 4120402788aSJiri Pirko 4130402788aSJiri Pirko mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); 4140402788aSJiri Pirko if (!mitem) 4150402788aSJiri Pirko return -ENOMEM; 4160402788aSJiri Pirko 4173d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4183d249d4cSJiri Pirko if (__find_mode(mode->kind)) { 4193d249d4cSJiri Pirko err = -EEXIST; 4200402788aSJiri Pirko kfree(mitem); 4213d249d4cSJiri Pirko goto unlock; 4223d249d4cSJiri Pirko } 4230402788aSJiri Pirko mitem->mode = mode; 4240402788aSJiri Pirko list_add_tail(&mitem->list, &mode_list); 4253d249d4cSJiri Pirko unlock: 4263d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4273d249d4cSJiri Pirko return err; 4283d249d4cSJiri Pirko } 4293d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_register); 4303d249d4cSJiri Pirko 4310402788aSJiri Pirko void team_mode_unregister(const struct team_mode *mode) 4323d249d4cSJiri Pirko { 4330402788aSJiri Pirko struct team_mode_item *mitem; 4340402788aSJiri Pirko 4353d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4360402788aSJiri Pirko mitem = __find_mode(mode->kind); 4370402788aSJiri Pirko if (mitem) { 4380402788aSJiri Pirko list_del_init(&mitem->list); 4390402788aSJiri Pirko kfree(mitem); 4400402788aSJiri Pirko } 4413d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4423d249d4cSJiri Pirko } 4433d249d4cSJiri Pirko EXPORT_SYMBOL(team_mode_unregister); 4443d249d4cSJiri Pirko 4450402788aSJiri Pirko static const struct team_mode *team_mode_get(const char *kind) 4463d249d4cSJiri Pirko { 4470402788aSJiri Pirko struct team_mode_item *mitem; 4480402788aSJiri Pirko const struct team_mode *mode = NULL; 4493d249d4cSJiri Pirko 4503d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4510402788aSJiri Pirko mitem = __find_mode(kind); 4520402788aSJiri Pirko if (!mitem) { 4533d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4543d249d4cSJiri Pirko request_module("team-mode-%s", kind); 4553d249d4cSJiri Pirko spin_lock(&mode_list_lock); 4560402788aSJiri Pirko mitem = __find_mode(kind); 4573d249d4cSJiri Pirko } 4580402788aSJiri Pirko if (mitem) { 4590402788aSJiri Pirko mode = mitem->mode; 4603d249d4cSJiri Pirko if (!try_module_get(mode->owner)) 4613d249d4cSJiri Pirko mode = NULL; 4620402788aSJiri Pirko } 4633d249d4cSJiri Pirko 4643d249d4cSJiri Pirko spin_unlock(&mode_list_lock); 4653d249d4cSJiri Pirko return mode; 4663d249d4cSJiri Pirko } 4673d249d4cSJiri Pirko 4683d249d4cSJiri Pirko static void team_mode_put(const struct team_mode *mode) 4693d249d4cSJiri Pirko { 4703d249d4cSJiri Pirko module_put(mode->owner); 4713d249d4cSJiri Pirko } 4723d249d4cSJiri Pirko 4733d249d4cSJiri Pirko static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) 4743d249d4cSJiri Pirko { 4753d249d4cSJiri Pirko dev_kfree_skb_any(skb); 4763d249d4cSJiri Pirko return false; 4773d249d4cSJiri Pirko } 4783d249d4cSJiri Pirko 4793d249d4cSJiri Pirko rx_handler_result_t team_dummy_receive(struct team *team, 4803d249d4cSJiri Pirko struct team_port *port, 4813d249d4cSJiri Pirko struct sk_buff *skb) 4823d249d4cSJiri Pirko { 4833d249d4cSJiri Pirko return RX_HANDLER_ANOTHER; 4843d249d4cSJiri Pirko } 4853d249d4cSJiri Pirko 486d299cd51SJiri Pirko static const struct team_mode __team_no_mode = { 487d299cd51SJiri Pirko .kind = "*NOMODE*", 488d299cd51SJiri Pirko }; 489d299cd51SJiri Pirko 490d299cd51SJiri Pirko static bool team_is_mode_set(struct team *team) 491d299cd51SJiri Pirko { 492d299cd51SJiri Pirko return team->mode != &__team_no_mode; 493d299cd51SJiri Pirko } 494d299cd51SJiri Pirko 495d299cd51SJiri Pirko static void team_set_no_mode(struct team *team) 496d299cd51SJiri Pirko { 497d299cd51SJiri Pirko team->mode = &__team_no_mode; 498d299cd51SJiri Pirko } 499d299cd51SJiri Pirko 5003d249d4cSJiri Pirko static void team_adjust_ops(struct team *team) 5013d249d4cSJiri Pirko { 5023d249d4cSJiri Pirko /* 5033d249d4cSJiri Pirko * To avoid checks in rx/tx skb paths, ensure here that non-null and 5043d249d4cSJiri Pirko * correct ops are always set. 5053d249d4cSJiri Pirko */ 5063d249d4cSJiri Pirko 5073d249d4cSJiri Pirko if (list_empty(&team->port_list) || 508d299cd51SJiri Pirko !team_is_mode_set(team) || !team->mode->ops->transmit) 5093d249d4cSJiri Pirko team->ops.transmit = team_dummy_transmit; 5103d249d4cSJiri Pirko else 5113d249d4cSJiri Pirko team->ops.transmit = team->mode->ops->transmit; 5123d249d4cSJiri Pirko 5133d249d4cSJiri Pirko if (list_empty(&team->port_list) || 514d299cd51SJiri Pirko !team_is_mode_set(team) || !team->mode->ops->receive) 5153d249d4cSJiri Pirko team->ops.receive = team_dummy_receive; 5163d249d4cSJiri Pirko else 5173d249d4cSJiri Pirko team->ops.receive = team->mode->ops->receive; 5183d249d4cSJiri Pirko } 5193d249d4cSJiri Pirko 5203d249d4cSJiri Pirko /* 5213d249d4cSJiri Pirko * We can benefit from the fact that it's ensured no port is present 5223d249d4cSJiri Pirko * at the time of mode change. Therefore no packets are in fly so there's no 5233d249d4cSJiri Pirko * need to set mode operations in any special way. 5243d249d4cSJiri Pirko */ 5253d249d4cSJiri Pirko static int __team_change_mode(struct team *team, 5263d249d4cSJiri Pirko const struct team_mode *new_mode) 5273d249d4cSJiri Pirko { 5283d249d4cSJiri Pirko /* Check if mode was previously set and do cleanup if so */ 529d299cd51SJiri Pirko if (team_is_mode_set(team)) { 5303d249d4cSJiri Pirko void (*exit_op)(struct team *team) = team->ops.exit; 5313d249d4cSJiri Pirko 5323d249d4cSJiri Pirko /* Clear ops area so no callback is called any longer */ 5333d249d4cSJiri Pirko memset(&team->ops, 0, sizeof(struct team_mode_ops)); 5343d249d4cSJiri Pirko team_adjust_ops(team); 5353d249d4cSJiri Pirko 5363d249d4cSJiri Pirko if (exit_op) 5373d249d4cSJiri Pirko exit_op(team); 5383d249d4cSJiri Pirko team_mode_put(team->mode); 539d299cd51SJiri Pirko team_set_no_mode(team); 5403d249d4cSJiri Pirko /* zero private data area */ 5413d249d4cSJiri Pirko memset(&team->mode_priv, 0, 5423d249d4cSJiri Pirko sizeof(struct team) - offsetof(struct team, mode_priv)); 5433d249d4cSJiri Pirko } 5443d249d4cSJiri Pirko 5453d249d4cSJiri Pirko if (!new_mode) 5463d249d4cSJiri Pirko return 0; 5473d249d4cSJiri Pirko 5483d249d4cSJiri Pirko if (new_mode->ops->init) { 5493d249d4cSJiri Pirko int err; 5503d249d4cSJiri Pirko 5513d249d4cSJiri Pirko err = new_mode->ops->init(team); 5523d249d4cSJiri Pirko if (err) 5533d249d4cSJiri Pirko return err; 5543d249d4cSJiri Pirko } 5553d249d4cSJiri Pirko 5563d249d4cSJiri Pirko team->mode = new_mode; 5573d249d4cSJiri Pirko memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); 5583d249d4cSJiri Pirko team_adjust_ops(team); 5593d249d4cSJiri Pirko 5603d249d4cSJiri Pirko return 0; 5613d249d4cSJiri Pirko } 5623d249d4cSJiri Pirko 5633d249d4cSJiri Pirko static int team_change_mode(struct team *team, const char *kind) 5643d249d4cSJiri Pirko { 5650402788aSJiri Pirko const struct team_mode *new_mode; 5663d249d4cSJiri Pirko struct net_device *dev = team->dev; 5673d249d4cSJiri Pirko int err; 5683d249d4cSJiri Pirko 5693d249d4cSJiri Pirko if (!list_empty(&team->port_list)) { 5703d249d4cSJiri Pirko netdev_err(dev, "No ports can be present during mode change\n"); 5713d249d4cSJiri Pirko return -EBUSY; 5723d249d4cSJiri Pirko } 5733d249d4cSJiri Pirko 574d299cd51SJiri Pirko if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { 5753d249d4cSJiri Pirko netdev_err(dev, "Unable to change to the same mode the team is in\n"); 5763d249d4cSJiri Pirko return -EINVAL; 5773d249d4cSJiri Pirko } 5783d249d4cSJiri Pirko 5793d249d4cSJiri Pirko new_mode = team_mode_get(kind); 5803d249d4cSJiri Pirko if (!new_mode) { 5813d249d4cSJiri Pirko netdev_err(dev, "Mode \"%s\" not found\n", kind); 5823d249d4cSJiri Pirko return -EINVAL; 5833d249d4cSJiri Pirko } 5843d249d4cSJiri Pirko 5853d249d4cSJiri Pirko err = __team_change_mode(team, new_mode); 5863d249d4cSJiri Pirko if (err) { 5873d249d4cSJiri Pirko netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); 5883d249d4cSJiri Pirko team_mode_put(new_mode); 5893d249d4cSJiri Pirko return err; 5903d249d4cSJiri Pirko } 5913d249d4cSJiri Pirko 5923d249d4cSJiri Pirko netdev_info(dev, "Mode changed to \"%s\"\n", kind); 5933d249d4cSJiri Pirko return 0; 5943d249d4cSJiri Pirko } 5953d249d4cSJiri Pirko 5963d249d4cSJiri Pirko 5973d249d4cSJiri Pirko /************************ 5983d249d4cSJiri Pirko * Rx path frame handler 5993d249d4cSJiri Pirko ************************/ 6003d249d4cSJiri Pirko 60119a0b58eSJiri Pirko static bool team_port_enabled(struct team_port *port); 60219a0b58eSJiri Pirko 6033d249d4cSJiri Pirko /* note: already called with rcu_read_lock */ 6043d249d4cSJiri Pirko static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) 6053d249d4cSJiri Pirko { 6063d249d4cSJiri Pirko struct sk_buff *skb = *pskb; 6073d249d4cSJiri Pirko struct team_port *port; 6083d249d4cSJiri Pirko struct team *team; 6093d249d4cSJiri Pirko rx_handler_result_t res; 6103d249d4cSJiri Pirko 6113d249d4cSJiri Pirko skb = skb_share_check(skb, GFP_ATOMIC); 6123d249d4cSJiri Pirko if (!skb) 6133d249d4cSJiri Pirko return RX_HANDLER_CONSUMED; 6143d249d4cSJiri Pirko 6153d249d4cSJiri Pirko *pskb = skb; 6163d249d4cSJiri Pirko 6173d249d4cSJiri Pirko port = team_port_get_rcu(skb->dev); 6183d249d4cSJiri Pirko team = port->team; 61919a0b58eSJiri Pirko if (!team_port_enabled(port)) { 62019a0b58eSJiri Pirko /* allow exact match delivery for disabled ports */ 62119a0b58eSJiri Pirko res = RX_HANDLER_EXACT; 62219a0b58eSJiri Pirko } else { 6233d249d4cSJiri Pirko res = team->ops.receive(team, port, skb); 62419a0b58eSJiri Pirko } 6253d249d4cSJiri Pirko if (res == RX_HANDLER_ANOTHER) { 6263d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 6273d249d4cSJiri Pirko 6283d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 6293d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 6303d249d4cSJiri Pirko pcpu_stats->rx_packets++; 6313d249d4cSJiri Pirko pcpu_stats->rx_bytes += skb->len; 6323d249d4cSJiri Pirko if (skb->pkt_type == PACKET_MULTICAST) 6333d249d4cSJiri Pirko pcpu_stats->rx_multicast++; 6343d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 6353d249d4cSJiri Pirko 6363d249d4cSJiri Pirko skb->dev = team->dev; 6373d249d4cSJiri Pirko } else { 6383d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->rx_dropped); 6393d249d4cSJiri Pirko } 6403d249d4cSJiri Pirko 6413d249d4cSJiri Pirko return res; 6423d249d4cSJiri Pirko } 6433d249d4cSJiri Pirko 6443d249d4cSJiri Pirko 6453d249d4cSJiri Pirko /**************** 6463d249d4cSJiri Pirko * Port handling 6473d249d4cSJiri Pirko ****************/ 6483d249d4cSJiri Pirko 6493d249d4cSJiri Pirko static bool team_port_find(const struct team *team, 6503d249d4cSJiri Pirko const struct team_port *port) 6513d249d4cSJiri Pirko { 6523d249d4cSJiri Pirko struct team_port *cur; 6533d249d4cSJiri Pirko 6543d249d4cSJiri Pirko list_for_each_entry(cur, &team->port_list, list) 6553d249d4cSJiri Pirko if (cur == port) 6563d249d4cSJiri Pirko return true; 6573d249d4cSJiri Pirko return false; 6583d249d4cSJiri Pirko } 6593d249d4cSJiri Pirko 66019a0b58eSJiri Pirko static bool team_port_enabled(struct team_port *port) 66119a0b58eSJiri Pirko { 66219a0b58eSJiri Pirko return port->index != -1; 66319a0b58eSJiri Pirko } 66419a0b58eSJiri Pirko 6653d249d4cSJiri Pirko /* 66619a0b58eSJiri Pirko * Enable/disable port by adding to enabled port hashlist and setting 66719a0b58eSJiri Pirko * port->index (Might be racy so reader could see incorrect ifindex when 66819a0b58eSJiri Pirko * processing a flying packet, but that is not a problem). Write guarded 66919a0b58eSJiri Pirko * by team->lock. 6703d249d4cSJiri Pirko */ 67119a0b58eSJiri Pirko static void team_port_enable(struct team *team, 6723d249d4cSJiri Pirko struct team_port *port) 6733d249d4cSJiri Pirko { 67419a0b58eSJiri Pirko if (team_port_enabled(port)) 67519a0b58eSJiri Pirko return; 67619a0b58eSJiri Pirko port->index = team->en_port_count++; 6773d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 6783d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 6793d249d4cSJiri Pirko } 6803d249d4cSJiri Pirko 6813d249d4cSJiri Pirko static void __reconstruct_port_hlist(struct team *team, int rm_index) 6823d249d4cSJiri Pirko { 6833d249d4cSJiri Pirko int i; 6843d249d4cSJiri Pirko struct team_port *port; 6853d249d4cSJiri Pirko 68619a0b58eSJiri Pirko for (i = rm_index + 1; i < team->en_port_count; i++) { 6873d249d4cSJiri Pirko port = team_get_port_by_index(team, i); 6883d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 6893d249d4cSJiri Pirko port->index--; 6903d249d4cSJiri Pirko hlist_add_head_rcu(&port->hlist, 6913d249d4cSJiri Pirko team_port_index_hash(team, port->index)); 6923d249d4cSJiri Pirko } 6933d249d4cSJiri Pirko } 6943d249d4cSJiri Pirko 69519a0b58eSJiri Pirko static void team_port_disable(struct team *team, 6963d249d4cSJiri Pirko struct team_port *port) 6973d249d4cSJiri Pirko { 6983d249d4cSJiri Pirko int rm_index = port->index; 6993d249d4cSJiri Pirko 70019a0b58eSJiri Pirko if (!team_port_enabled(port)) 70119a0b58eSJiri Pirko return; 7023d249d4cSJiri Pirko hlist_del_rcu(&port->hlist); 7033d249d4cSJiri Pirko __reconstruct_port_hlist(team, rm_index); 70419a0b58eSJiri Pirko team->en_port_count--; 70519a0b58eSJiri Pirko port->index = -1; 7063d249d4cSJiri Pirko } 7073d249d4cSJiri Pirko 7083d249d4cSJiri Pirko #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ 7093d249d4cSJiri Pirko NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ 7103d249d4cSJiri Pirko NETIF_F_HIGHDMA | NETIF_F_LRO) 7113d249d4cSJiri Pirko 7123d249d4cSJiri Pirko static void __team_compute_features(struct team *team) 7133d249d4cSJiri Pirko { 7143d249d4cSJiri Pirko struct team_port *port; 7153d249d4cSJiri Pirko u32 vlan_features = TEAM_VLAN_FEATURES; 7163d249d4cSJiri Pirko unsigned short max_hard_header_len = ETH_HLEN; 7173d249d4cSJiri Pirko 7183d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 7193d249d4cSJiri Pirko vlan_features = netdev_increment_features(vlan_features, 7203d249d4cSJiri Pirko port->dev->vlan_features, 7213d249d4cSJiri Pirko TEAM_VLAN_FEATURES); 7223d249d4cSJiri Pirko 7233d249d4cSJiri Pirko if (port->dev->hard_header_len > max_hard_header_len) 7243d249d4cSJiri Pirko max_hard_header_len = port->dev->hard_header_len; 7253d249d4cSJiri Pirko } 7263d249d4cSJiri Pirko 7273d249d4cSJiri Pirko team->dev->vlan_features = vlan_features; 7283d249d4cSJiri Pirko team->dev->hard_header_len = max_hard_header_len; 7293d249d4cSJiri Pirko 7303d249d4cSJiri Pirko netdev_change_features(team->dev); 7313d249d4cSJiri Pirko } 7323d249d4cSJiri Pirko 7333d249d4cSJiri Pirko static void team_compute_features(struct team *team) 7343d249d4cSJiri Pirko { 73561dc3461SJiri Pirko mutex_lock(&team->lock); 7363d249d4cSJiri Pirko __team_compute_features(team); 73761dc3461SJiri Pirko mutex_unlock(&team->lock); 7383d249d4cSJiri Pirko } 7393d249d4cSJiri Pirko 7403d249d4cSJiri Pirko static int team_port_enter(struct team *team, struct team_port *port) 7413d249d4cSJiri Pirko { 7423d249d4cSJiri Pirko int err = 0; 7433d249d4cSJiri Pirko 7443d249d4cSJiri Pirko dev_hold(team->dev); 7453d249d4cSJiri Pirko port->dev->priv_flags |= IFF_TEAM_PORT; 7463d249d4cSJiri Pirko if (team->ops.port_enter) { 7473d249d4cSJiri Pirko err = team->ops.port_enter(team, port); 7483d249d4cSJiri Pirko if (err) { 7493d249d4cSJiri Pirko netdev_err(team->dev, "Device %s failed to enter team mode\n", 7503d249d4cSJiri Pirko port->dev->name); 7513d249d4cSJiri Pirko goto err_port_enter; 7523d249d4cSJiri Pirko } 7533d249d4cSJiri Pirko } 7543d249d4cSJiri Pirko 7553d249d4cSJiri Pirko return 0; 7563d249d4cSJiri Pirko 7573d249d4cSJiri Pirko err_port_enter: 7583d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7593d249d4cSJiri Pirko dev_put(team->dev); 7603d249d4cSJiri Pirko 7613d249d4cSJiri Pirko return err; 7623d249d4cSJiri Pirko } 7633d249d4cSJiri Pirko 7643d249d4cSJiri Pirko static void team_port_leave(struct team *team, struct team_port *port) 7653d249d4cSJiri Pirko { 7663d249d4cSJiri Pirko if (team->ops.port_leave) 7673d249d4cSJiri Pirko team->ops.port_leave(team, port); 7683d249d4cSJiri Pirko port->dev->priv_flags &= ~IFF_TEAM_PORT; 7693d249d4cSJiri Pirko dev_put(team->dev); 7703d249d4cSJiri Pirko } 7713d249d4cSJiri Pirko 7723d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup); 7733d249d4cSJiri Pirko 7743d249d4cSJiri Pirko static int team_port_add(struct team *team, struct net_device *port_dev) 7753d249d4cSJiri Pirko { 7763d249d4cSJiri Pirko struct net_device *dev = team->dev; 7773d249d4cSJiri Pirko struct team_port *port; 7783d249d4cSJiri Pirko char *portname = port_dev->name; 7793d249d4cSJiri Pirko int err; 7803d249d4cSJiri Pirko 7813d249d4cSJiri Pirko if (port_dev->flags & IFF_LOOPBACK || 7823d249d4cSJiri Pirko port_dev->type != ARPHRD_ETHER) { 7833d249d4cSJiri Pirko netdev_err(dev, "Device %s is of an unsupported type\n", 7843d249d4cSJiri Pirko portname); 7853d249d4cSJiri Pirko return -EINVAL; 7863d249d4cSJiri Pirko } 7873d249d4cSJiri Pirko 7883d249d4cSJiri Pirko if (team_port_exists(port_dev)) { 7893d249d4cSJiri Pirko netdev_err(dev, "Device %s is already a port " 7903d249d4cSJiri Pirko "of a team device\n", portname); 7913d249d4cSJiri Pirko return -EBUSY; 7923d249d4cSJiri Pirko } 7933d249d4cSJiri Pirko 7943d249d4cSJiri Pirko if (port_dev->flags & IFF_UP) { 7953d249d4cSJiri Pirko netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", 7963d249d4cSJiri Pirko portname); 7973d249d4cSJiri Pirko return -EBUSY; 7983d249d4cSJiri Pirko } 7993d249d4cSJiri Pirko 8005149ee58SJiri Pirko port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, 8015149ee58SJiri Pirko GFP_KERNEL); 8023d249d4cSJiri Pirko if (!port) 8033d249d4cSJiri Pirko return -ENOMEM; 8043d249d4cSJiri Pirko 8053d249d4cSJiri Pirko port->dev = port_dev; 8063d249d4cSJiri Pirko port->team = team; 8073d249d4cSJiri Pirko 8083d249d4cSJiri Pirko port->orig.mtu = port_dev->mtu; 8093d249d4cSJiri Pirko err = dev_set_mtu(port_dev, dev->mtu); 8103d249d4cSJiri Pirko if (err) { 8113d249d4cSJiri Pirko netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); 8123d249d4cSJiri Pirko goto err_set_mtu; 8133d249d4cSJiri Pirko } 8143d249d4cSJiri Pirko 8153d249d4cSJiri Pirko memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN); 8163d249d4cSJiri Pirko 8173d249d4cSJiri Pirko err = team_port_enter(team, port); 8183d249d4cSJiri Pirko if (err) { 8193d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to enter team mode\n", 8203d249d4cSJiri Pirko portname); 8213d249d4cSJiri Pirko goto err_port_enter; 8223d249d4cSJiri Pirko } 8233d249d4cSJiri Pirko 8243d249d4cSJiri Pirko err = dev_open(port_dev); 8253d249d4cSJiri Pirko if (err) { 8263d249d4cSJiri Pirko netdev_dbg(dev, "Device %s opening failed\n", 8273d249d4cSJiri Pirko portname); 8283d249d4cSJiri Pirko goto err_dev_open; 8293d249d4cSJiri Pirko } 8303d249d4cSJiri Pirko 83157459185SJiri Pirko err = vlan_vids_add_by_dev(port_dev, dev); 83257459185SJiri Pirko if (err) { 83357459185SJiri Pirko netdev_err(dev, "Failed to add vlan ids to device %s\n", 83457459185SJiri Pirko portname); 83557459185SJiri Pirko goto err_vids_add; 83657459185SJiri Pirko } 83757459185SJiri Pirko 8383d249d4cSJiri Pirko err = netdev_set_master(port_dev, dev); 8393d249d4cSJiri Pirko if (err) { 8403d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to set master\n", portname); 8413d249d4cSJiri Pirko goto err_set_master; 8423d249d4cSJiri Pirko } 8433d249d4cSJiri Pirko 8443d249d4cSJiri Pirko err = netdev_rx_handler_register(port_dev, team_handle_frame, 8453d249d4cSJiri Pirko port); 8463d249d4cSJiri Pirko if (err) { 8473d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to register rx_handler\n", 8483d249d4cSJiri Pirko portname); 8493d249d4cSJiri Pirko goto err_handler_register; 8503d249d4cSJiri Pirko } 8513d249d4cSJiri Pirko 85280f7c668SJiri Pirko err = team_option_port_add(team, port); 85380f7c668SJiri Pirko if (err) { 85480f7c668SJiri Pirko netdev_err(dev, "Device %s failed to add per-port options\n", 85580f7c668SJiri Pirko portname); 85680f7c668SJiri Pirko goto err_option_port_add; 85780f7c668SJiri Pirko } 85880f7c668SJiri Pirko 85919a0b58eSJiri Pirko port->index = -1; 86019a0b58eSJiri Pirko team_port_enable(team, port); 86119a0b58eSJiri Pirko list_add_tail_rcu(&port->list, &team->port_list); 8623d249d4cSJiri Pirko team_adjust_ops(team); 8633d249d4cSJiri Pirko __team_compute_features(team); 8643d249d4cSJiri Pirko __team_port_change_check(port, !!netif_carrier_ok(port_dev)); 8653d249d4cSJiri Pirko 8663d249d4cSJiri Pirko netdev_info(dev, "Port device %s added\n", portname); 8673d249d4cSJiri Pirko 8683d249d4cSJiri Pirko return 0; 8693d249d4cSJiri Pirko 87080f7c668SJiri Pirko err_option_port_add: 87180f7c668SJiri Pirko netdev_rx_handler_unregister(port_dev); 87280f7c668SJiri Pirko 8733d249d4cSJiri Pirko err_handler_register: 8743d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 8753d249d4cSJiri Pirko 8763d249d4cSJiri Pirko err_set_master: 87757459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 87857459185SJiri Pirko 87957459185SJiri Pirko err_vids_add: 8803d249d4cSJiri Pirko dev_close(port_dev); 8813d249d4cSJiri Pirko 8823d249d4cSJiri Pirko err_dev_open: 8833d249d4cSJiri Pirko team_port_leave(team, port); 8843d249d4cSJiri Pirko team_port_set_orig_mac(port); 8853d249d4cSJiri Pirko 8863d249d4cSJiri Pirko err_port_enter: 8873d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 8883d249d4cSJiri Pirko 8893d249d4cSJiri Pirko err_set_mtu: 8903d249d4cSJiri Pirko kfree(port); 8913d249d4cSJiri Pirko 8923d249d4cSJiri Pirko return err; 8933d249d4cSJiri Pirko } 8943d249d4cSJiri Pirko 8953d249d4cSJiri Pirko static int team_port_del(struct team *team, struct net_device *port_dev) 8963d249d4cSJiri Pirko { 8973d249d4cSJiri Pirko struct net_device *dev = team->dev; 8983d249d4cSJiri Pirko struct team_port *port; 8993d249d4cSJiri Pirko char *portname = port_dev->name; 9003d249d4cSJiri Pirko 9013d249d4cSJiri Pirko port = team_port_get_rtnl(port_dev); 9023d249d4cSJiri Pirko if (!port || !team_port_find(team, port)) { 9033d249d4cSJiri Pirko netdev_err(dev, "Device %s does not act as a port of this team\n", 9043d249d4cSJiri Pirko portname); 9053d249d4cSJiri Pirko return -ENOENT; 9063d249d4cSJiri Pirko } 9073d249d4cSJiri Pirko 908b82b9183SJiri Pirko port->removed = true; 9093d249d4cSJiri Pirko __team_port_change_check(port, false); 91019a0b58eSJiri Pirko team_port_disable(team, port); 91119a0b58eSJiri Pirko list_del_rcu(&port->list); 9123d249d4cSJiri Pirko team_adjust_ops(team); 91380f7c668SJiri Pirko team_option_port_del(team, port); 9143d249d4cSJiri Pirko netdev_rx_handler_unregister(port_dev); 9153d249d4cSJiri Pirko netdev_set_master(port_dev, NULL); 91657459185SJiri Pirko vlan_vids_del_by_dev(port_dev, dev); 9173d249d4cSJiri Pirko dev_close(port_dev); 9183d249d4cSJiri Pirko team_port_leave(team, port); 9193d249d4cSJiri Pirko team_port_set_orig_mac(port); 9203d249d4cSJiri Pirko dev_set_mtu(port_dev, port->orig.mtu); 9213d249d4cSJiri Pirko synchronize_rcu(); 9223d249d4cSJiri Pirko kfree(port); 9233d249d4cSJiri Pirko netdev_info(dev, "Port device %s removed\n", portname); 9243d249d4cSJiri Pirko __team_compute_features(team); 9253d249d4cSJiri Pirko 9263d249d4cSJiri Pirko return 0; 9273d249d4cSJiri Pirko } 9283d249d4cSJiri Pirko 9293d249d4cSJiri Pirko 9303d249d4cSJiri Pirko /***************** 9313d249d4cSJiri Pirko * Net device ops 9323d249d4cSJiri Pirko *****************/ 9333d249d4cSJiri Pirko 93480f7c668SJiri Pirko static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) 9353d249d4cSJiri Pirko { 936d299cd51SJiri Pirko ctx->data.str_val = team->mode->kind; 9373d249d4cSJiri Pirko return 0; 9383d249d4cSJiri Pirko } 9393d249d4cSJiri Pirko 94080f7c668SJiri Pirko static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) 9413d249d4cSJiri Pirko { 94280f7c668SJiri Pirko return team_change_mode(team, ctx->data.str_val); 9433d249d4cSJiri Pirko } 9443d249d4cSJiri Pirko 945acd69962SJiri Pirko static int team_port_en_option_get(struct team *team, 946acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 947acd69962SJiri Pirko { 948acd69962SJiri Pirko ctx->data.bool_val = team_port_enabled(ctx->port); 949acd69962SJiri Pirko return 0; 950acd69962SJiri Pirko } 951acd69962SJiri Pirko 952acd69962SJiri Pirko static int team_port_en_option_set(struct team *team, 953acd69962SJiri Pirko struct team_gsetter_ctx *ctx) 954acd69962SJiri Pirko { 955acd69962SJiri Pirko if (ctx->data.bool_val) 956acd69962SJiri Pirko team_port_enable(team, ctx->port); 957acd69962SJiri Pirko else 958acd69962SJiri Pirko team_port_disable(team, ctx->port); 959acd69962SJiri Pirko return 0; 960acd69962SJiri Pirko } 961acd69962SJiri Pirko 96271472ec1SJiri Pirko static int team_user_linkup_option_get(struct team *team, 96371472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 96471472ec1SJiri Pirko { 96571472ec1SJiri Pirko ctx->data.bool_val = ctx->port->user.linkup; 96671472ec1SJiri Pirko return 0; 96771472ec1SJiri Pirko } 96871472ec1SJiri Pirko 96971472ec1SJiri Pirko static int team_user_linkup_option_set(struct team *team, 97071472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 97171472ec1SJiri Pirko { 97271472ec1SJiri Pirko ctx->port->user.linkup = ctx->data.bool_val; 97371472ec1SJiri Pirko team_refresh_port_linkup(ctx->port); 97471472ec1SJiri Pirko return 0; 97571472ec1SJiri Pirko } 97671472ec1SJiri Pirko 97771472ec1SJiri Pirko static int team_user_linkup_en_option_get(struct team *team, 97871472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 97971472ec1SJiri Pirko { 98071472ec1SJiri Pirko struct team_port *port = ctx->port; 98171472ec1SJiri Pirko 98271472ec1SJiri Pirko ctx->data.bool_val = port->user.linkup_enabled; 98371472ec1SJiri Pirko return 0; 98471472ec1SJiri Pirko } 98571472ec1SJiri Pirko 98671472ec1SJiri Pirko static int team_user_linkup_en_option_set(struct team *team, 98771472ec1SJiri Pirko struct team_gsetter_ctx *ctx) 98871472ec1SJiri Pirko { 98971472ec1SJiri Pirko struct team_port *port = ctx->port; 99071472ec1SJiri Pirko 99171472ec1SJiri Pirko port->user.linkup_enabled = ctx->data.bool_val; 99271472ec1SJiri Pirko team_refresh_port_linkup(ctx->port); 99371472ec1SJiri Pirko return 0; 99471472ec1SJiri Pirko } 99571472ec1SJiri Pirko 996358b8382SJiri Pirko static const struct team_option team_options[] = { 9973d249d4cSJiri Pirko { 9983d249d4cSJiri Pirko .name = "mode", 9993d249d4cSJiri Pirko .type = TEAM_OPTION_TYPE_STRING, 10003d249d4cSJiri Pirko .getter = team_mode_option_get, 10013d249d4cSJiri Pirko .setter = team_mode_option_set, 10023d249d4cSJiri Pirko }, 100371472ec1SJiri Pirko { 1004acd69962SJiri Pirko .name = "enabled", 1005acd69962SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 1006acd69962SJiri Pirko .per_port = true, 1007acd69962SJiri Pirko .getter = team_port_en_option_get, 1008acd69962SJiri Pirko .setter = team_port_en_option_set, 1009acd69962SJiri Pirko }, 1010acd69962SJiri Pirko { 101171472ec1SJiri Pirko .name = "user_linkup", 101271472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 101371472ec1SJiri Pirko .per_port = true, 101471472ec1SJiri Pirko .getter = team_user_linkup_option_get, 101571472ec1SJiri Pirko .setter = team_user_linkup_option_set, 101671472ec1SJiri Pirko }, 101771472ec1SJiri Pirko { 101871472ec1SJiri Pirko .name = "user_linkup_enabled", 101971472ec1SJiri Pirko .type = TEAM_OPTION_TYPE_BOOL, 102071472ec1SJiri Pirko .per_port = true, 102171472ec1SJiri Pirko .getter = team_user_linkup_en_option_get, 102271472ec1SJiri Pirko .setter = team_user_linkup_en_option_set, 102371472ec1SJiri Pirko }, 10243d249d4cSJiri Pirko }; 10253d249d4cSJiri Pirko 10263d249d4cSJiri Pirko static int team_init(struct net_device *dev) 10273d249d4cSJiri Pirko { 10283d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10293d249d4cSJiri Pirko int i; 1030358b8382SJiri Pirko int err; 10313d249d4cSJiri Pirko 10323d249d4cSJiri Pirko team->dev = dev; 103361dc3461SJiri Pirko mutex_init(&team->lock); 1034d299cd51SJiri Pirko team_set_no_mode(team); 10353d249d4cSJiri Pirko 10363d249d4cSJiri Pirko team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); 10373d249d4cSJiri Pirko if (!team->pcpu_stats) 10383d249d4cSJiri Pirko return -ENOMEM; 10393d249d4cSJiri Pirko 10403d249d4cSJiri Pirko for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) 104119a0b58eSJiri Pirko INIT_HLIST_HEAD(&team->en_port_hlist[i]); 10423d249d4cSJiri Pirko INIT_LIST_HEAD(&team->port_list); 10433d249d4cSJiri Pirko 10443d249d4cSJiri Pirko team_adjust_ops(team); 10453d249d4cSJiri Pirko 10463d249d4cSJiri Pirko INIT_LIST_HEAD(&team->option_list); 104780f7c668SJiri Pirko INIT_LIST_HEAD(&team->option_inst_list); 1048358b8382SJiri Pirko err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); 1049358b8382SJiri Pirko if (err) 1050358b8382SJiri Pirko goto err_options_register; 10513d249d4cSJiri Pirko netif_carrier_off(dev); 10523d249d4cSJiri Pirko 10533d249d4cSJiri Pirko return 0; 1054358b8382SJiri Pirko 1055358b8382SJiri Pirko err_options_register: 1056358b8382SJiri Pirko free_percpu(team->pcpu_stats); 1057358b8382SJiri Pirko 1058358b8382SJiri Pirko return err; 10593d249d4cSJiri Pirko } 10603d249d4cSJiri Pirko 10613d249d4cSJiri Pirko static void team_uninit(struct net_device *dev) 10623d249d4cSJiri Pirko { 10633d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10643d249d4cSJiri Pirko struct team_port *port; 10653d249d4cSJiri Pirko struct team_port *tmp; 10663d249d4cSJiri Pirko 106761dc3461SJiri Pirko mutex_lock(&team->lock); 10683d249d4cSJiri Pirko list_for_each_entry_safe(port, tmp, &team->port_list, list) 10693d249d4cSJiri Pirko team_port_del(team, port->dev); 10703d249d4cSJiri Pirko 10713d249d4cSJiri Pirko __team_change_mode(team, NULL); /* cleanup */ 10723d249d4cSJiri Pirko __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); 107361dc3461SJiri Pirko mutex_unlock(&team->lock); 10743d249d4cSJiri Pirko } 10753d249d4cSJiri Pirko 10763d249d4cSJiri Pirko static void team_destructor(struct net_device *dev) 10773d249d4cSJiri Pirko { 10783d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 10793d249d4cSJiri Pirko 10803d249d4cSJiri Pirko free_percpu(team->pcpu_stats); 10813d249d4cSJiri Pirko free_netdev(dev); 10823d249d4cSJiri Pirko } 10833d249d4cSJiri Pirko 10843d249d4cSJiri Pirko static int team_open(struct net_device *dev) 10853d249d4cSJiri Pirko { 10863d249d4cSJiri Pirko netif_carrier_on(dev); 10873d249d4cSJiri Pirko return 0; 10883d249d4cSJiri Pirko } 10893d249d4cSJiri Pirko 10903d249d4cSJiri Pirko static int team_close(struct net_device *dev) 10913d249d4cSJiri Pirko { 10923d249d4cSJiri Pirko netif_carrier_off(dev); 10933d249d4cSJiri Pirko return 0; 10943d249d4cSJiri Pirko } 10953d249d4cSJiri Pirko 10963d249d4cSJiri Pirko /* 10973d249d4cSJiri Pirko * note: already called with rcu_read_lock 10983d249d4cSJiri Pirko */ 10993d249d4cSJiri Pirko static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) 11003d249d4cSJiri Pirko { 11013d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11023d249d4cSJiri Pirko bool tx_success = false; 11033d249d4cSJiri Pirko unsigned int len = skb->len; 11043d249d4cSJiri Pirko 11053d249d4cSJiri Pirko tx_success = team->ops.transmit(team, skb); 11063d249d4cSJiri Pirko if (tx_success) { 11073d249d4cSJiri Pirko struct team_pcpu_stats *pcpu_stats; 11083d249d4cSJiri Pirko 11093d249d4cSJiri Pirko pcpu_stats = this_cpu_ptr(team->pcpu_stats); 11103d249d4cSJiri Pirko u64_stats_update_begin(&pcpu_stats->syncp); 11113d249d4cSJiri Pirko pcpu_stats->tx_packets++; 11123d249d4cSJiri Pirko pcpu_stats->tx_bytes += len; 11133d249d4cSJiri Pirko u64_stats_update_end(&pcpu_stats->syncp); 11143d249d4cSJiri Pirko } else { 11153d249d4cSJiri Pirko this_cpu_inc(team->pcpu_stats->tx_dropped); 11163d249d4cSJiri Pirko } 11173d249d4cSJiri Pirko 11183d249d4cSJiri Pirko return NETDEV_TX_OK; 11193d249d4cSJiri Pirko } 11203d249d4cSJiri Pirko 11213d249d4cSJiri Pirko static void team_change_rx_flags(struct net_device *dev, int change) 11223d249d4cSJiri Pirko { 11233d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11243d249d4cSJiri Pirko struct team_port *port; 11253d249d4cSJiri Pirko int inc; 11263d249d4cSJiri Pirko 11273d249d4cSJiri Pirko rcu_read_lock(); 11283d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 11293d249d4cSJiri Pirko if (change & IFF_PROMISC) { 11303d249d4cSJiri Pirko inc = dev->flags & IFF_PROMISC ? 1 : -1; 11313d249d4cSJiri Pirko dev_set_promiscuity(port->dev, inc); 11323d249d4cSJiri Pirko } 11333d249d4cSJiri Pirko if (change & IFF_ALLMULTI) { 11343d249d4cSJiri Pirko inc = dev->flags & IFF_ALLMULTI ? 1 : -1; 11353d249d4cSJiri Pirko dev_set_allmulti(port->dev, inc); 11363d249d4cSJiri Pirko } 11373d249d4cSJiri Pirko } 11383d249d4cSJiri Pirko rcu_read_unlock(); 11393d249d4cSJiri Pirko } 11403d249d4cSJiri Pirko 11413d249d4cSJiri Pirko static void team_set_rx_mode(struct net_device *dev) 11423d249d4cSJiri Pirko { 11433d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11443d249d4cSJiri Pirko struct team_port *port; 11453d249d4cSJiri Pirko 11463d249d4cSJiri Pirko rcu_read_lock(); 11473d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 11483d249d4cSJiri Pirko dev_uc_sync(port->dev, dev); 11493d249d4cSJiri Pirko dev_mc_sync(port->dev, dev); 11503d249d4cSJiri Pirko } 11513d249d4cSJiri Pirko rcu_read_unlock(); 11523d249d4cSJiri Pirko } 11533d249d4cSJiri Pirko 11543d249d4cSJiri Pirko static int team_set_mac_address(struct net_device *dev, void *p) 11553d249d4cSJiri Pirko { 11563d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11573d249d4cSJiri Pirko struct team_port *port; 11583d249d4cSJiri Pirko struct sockaddr *addr = p; 11593d249d4cSJiri Pirko 11607ce5d222SDanny Kukawka dev->addr_assign_type &= ~NET_ADDR_RANDOM; 11613d249d4cSJiri Pirko memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); 11623d249d4cSJiri Pirko rcu_read_lock(); 11633d249d4cSJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 11643d249d4cSJiri Pirko if (team->ops.port_change_mac) 11653d249d4cSJiri Pirko team->ops.port_change_mac(team, port); 11663d249d4cSJiri Pirko rcu_read_unlock(); 11673d249d4cSJiri Pirko return 0; 11683d249d4cSJiri Pirko } 11693d249d4cSJiri Pirko 11703d249d4cSJiri Pirko static int team_change_mtu(struct net_device *dev, int new_mtu) 11713d249d4cSJiri Pirko { 11723d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 11733d249d4cSJiri Pirko struct team_port *port; 11743d249d4cSJiri Pirko int err; 11753d249d4cSJiri Pirko 11763d249d4cSJiri Pirko /* 11773d249d4cSJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 11783d249d4cSJiri Pirko * to traverse list in reverse under rcu_read_lock 11793d249d4cSJiri Pirko */ 118061dc3461SJiri Pirko mutex_lock(&team->lock); 11813d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 11823d249d4cSJiri Pirko err = dev_set_mtu(port->dev, new_mtu); 11833d249d4cSJiri Pirko if (err) { 11843d249d4cSJiri Pirko netdev_err(dev, "Device %s failed to change mtu", 11853d249d4cSJiri Pirko port->dev->name); 11863d249d4cSJiri Pirko goto unwind; 11873d249d4cSJiri Pirko } 11883d249d4cSJiri Pirko } 118961dc3461SJiri Pirko mutex_unlock(&team->lock); 11903d249d4cSJiri Pirko 11913d249d4cSJiri Pirko dev->mtu = new_mtu; 11923d249d4cSJiri Pirko 11933d249d4cSJiri Pirko return 0; 11943d249d4cSJiri Pirko 11953d249d4cSJiri Pirko unwind: 11963d249d4cSJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 11973d249d4cSJiri Pirko dev_set_mtu(port->dev, dev->mtu); 119861dc3461SJiri Pirko mutex_unlock(&team->lock); 11993d249d4cSJiri Pirko 12003d249d4cSJiri Pirko return err; 12013d249d4cSJiri Pirko } 12023d249d4cSJiri Pirko 12033d249d4cSJiri Pirko static struct rtnl_link_stats64 * 12043d249d4cSJiri Pirko team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 12053d249d4cSJiri Pirko { 12063d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12073d249d4cSJiri Pirko struct team_pcpu_stats *p; 12083d249d4cSJiri Pirko u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; 12093d249d4cSJiri Pirko u32 rx_dropped = 0, tx_dropped = 0; 12103d249d4cSJiri Pirko unsigned int start; 12113d249d4cSJiri Pirko int i; 12123d249d4cSJiri Pirko 12133d249d4cSJiri Pirko for_each_possible_cpu(i) { 12143d249d4cSJiri Pirko p = per_cpu_ptr(team->pcpu_stats, i); 12153d249d4cSJiri Pirko do { 12163d249d4cSJiri Pirko start = u64_stats_fetch_begin_bh(&p->syncp); 12173d249d4cSJiri Pirko rx_packets = p->rx_packets; 12183d249d4cSJiri Pirko rx_bytes = p->rx_bytes; 12193d249d4cSJiri Pirko rx_multicast = p->rx_multicast; 12203d249d4cSJiri Pirko tx_packets = p->tx_packets; 12213d249d4cSJiri Pirko tx_bytes = p->tx_bytes; 12223d249d4cSJiri Pirko } while (u64_stats_fetch_retry_bh(&p->syncp, start)); 12233d249d4cSJiri Pirko 12243d249d4cSJiri Pirko stats->rx_packets += rx_packets; 12253d249d4cSJiri Pirko stats->rx_bytes += rx_bytes; 12263d249d4cSJiri Pirko stats->multicast += rx_multicast; 12273d249d4cSJiri Pirko stats->tx_packets += tx_packets; 12283d249d4cSJiri Pirko stats->tx_bytes += tx_bytes; 12293d249d4cSJiri Pirko /* 12303d249d4cSJiri Pirko * rx_dropped & tx_dropped are u32, updated 12313d249d4cSJiri Pirko * without syncp protection. 12323d249d4cSJiri Pirko */ 12333d249d4cSJiri Pirko rx_dropped += p->rx_dropped; 12343d249d4cSJiri Pirko tx_dropped += p->tx_dropped; 12353d249d4cSJiri Pirko } 12363d249d4cSJiri Pirko stats->rx_dropped = rx_dropped; 12373d249d4cSJiri Pirko stats->tx_dropped = tx_dropped; 12383d249d4cSJiri Pirko return stats; 12393d249d4cSJiri Pirko } 12403d249d4cSJiri Pirko 12418e586137SJiri Pirko static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) 12423d249d4cSJiri Pirko { 12433d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12443d249d4cSJiri Pirko struct team_port *port; 124587002b03SJiri Pirko int err; 12463d249d4cSJiri Pirko 124787002b03SJiri Pirko /* 124887002b03SJiri Pirko * Alhough this is reader, it's guarded by team lock. It's not possible 124987002b03SJiri Pirko * to traverse list in reverse under rcu_read_lock 125087002b03SJiri Pirko */ 125187002b03SJiri Pirko mutex_lock(&team->lock); 125287002b03SJiri Pirko list_for_each_entry(port, &team->port_list, list) { 125387002b03SJiri Pirko err = vlan_vid_add(port->dev, vid); 125487002b03SJiri Pirko if (err) 125587002b03SJiri Pirko goto unwind; 12563d249d4cSJiri Pirko } 125787002b03SJiri Pirko mutex_unlock(&team->lock); 12588e586137SJiri Pirko 12598e586137SJiri Pirko return 0; 126087002b03SJiri Pirko 126187002b03SJiri Pirko unwind: 126287002b03SJiri Pirko list_for_each_entry_continue_reverse(port, &team->port_list, list) 126387002b03SJiri Pirko vlan_vid_del(port->dev, vid); 126487002b03SJiri Pirko mutex_unlock(&team->lock); 126587002b03SJiri Pirko 126687002b03SJiri Pirko return err; 12673d249d4cSJiri Pirko } 12683d249d4cSJiri Pirko 12698e586137SJiri Pirko static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) 12703d249d4cSJiri Pirko { 12713d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12723d249d4cSJiri Pirko struct team_port *port; 12733d249d4cSJiri Pirko 12743d249d4cSJiri Pirko rcu_read_lock(); 127587002b03SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) 127687002b03SJiri Pirko vlan_vid_del(port->dev, vid); 12773d249d4cSJiri Pirko rcu_read_unlock(); 12788e586137SJiri Pirko 12798e586137SJiri Pirko return 0; 12803d249d4cSJiri Pirko } 12813d249d4cSJiri Pirko 12823d249d4cSJiri Pirko static int team_add_slave(struct net_device *dev, struct net_device *port_dev) 12833d249d4cSJiri Pirko { 12843d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12853d249d4cSJiri Pirko int err; 12863d249d4cSJiri Pirko 128761dc3461SJiri Pirko mutex_lock(&team->lock); 12883d249d4cSJiri Pirko err = team_port_add(team, port_dev); 128961dc3461SJiri Pirko mutex_unlock(&team->lock); 12903d249d4cSJiri Pirko return err; 12913d249d4cSJiri Pirko } 12923d249d4cSJiri Pirko 12933d249d4cSJiri Pirko static int team_del_slave(struct net_device *dev, struct net_device *port_dev) 12943d249d4cSJiri Pirko { 12953d249d4cSJiri Pirko struct team *team = netdev_priv(dev); 12963d249d4cSJiri Pirko int err; 12973d249d4cSJiri Pirko 129861dc3461SJiri Pirko mutex_lock(&team->lock); 12993d249d4cSJiri Pirko err = team_port_del(team, port_dev); 130061dc3461SJiri Pirko mutex_unlock(&team->lock); 13013d249d4cSJiri Pirko return err; 13023d249d4cSJiri Pirko } 13033d249d4cSJiri Pirko 1304234a8fd4SJiri Pirko static netdev_features_t team_fix_features(struct net_device *dev, 1305234a8fd4SJiri Pirko netdev_features_t features) 1306234a8fd4SJiri Pirko { 1307234a8fd4SJiri Pirko struct team_port *port; 1308234a8fd4SJiri Pirko struct team *team = netdev_priv(dev); 1309234a8fd4SJiri Pirko netdev_features_t mask; 1310234a8fd4SJiri Pirko 1311234a8fd4SJiri Pirko mask = features; 1312234a8fd4SJiri Pirko features &= ~NETIF_F_ONE_FOR_ALL; 1313234a8fd4SJiri Pirko features |= NETIF_F_ALL_FOR_ALL; 1314234a8fd4SJiri Pirko 1315234a8fd4SJiri Pirko rcu_read_lock(); 1316234a8fd4SJiri Pirko list_for_each_entry_rcu(port, &team->port_list, list) { 1317234a8fd4SJiri Pirko features = netdev_increment_features(features, 1318234a8fd4SJiri Pirko port->dev->features, 1319234a8fd4SJiri Pirko mask); 1320234a8fd4SJiri Pirko } 1321234a8fd4SJiri Pirko rcu_read_unlock(); 1322234a8fd4SJiri Pirko return features; 1323234a8fd4SJiri Pirko } 1324234a8fd4SJiri Pirko 13253d249d4cSJiri Pirko static const struct net_device_ops team_netdev_ops = { 13263d249d4cSJiri Pirko .ndo_init = team_init, 13273d249d4cSJiri Pirko .ndo_uninit = team_uninit, 13283d249d4cSJiri Pirko .ndo_open = team_open, 13293d249d4cSJiri Pirko .ndo_stop = team_close, 13303d249d4cSJiri Pirko .ndo_start_xmit = team_xmit, 13313d249d4cSJiri Pirko .ndo_change_rx_flags = team_change_rx_flags, 13323d249d4cSJiri Pirko .ndo_set_rx_mode = team_set_rx_mode, 13333d249d4cSJiri Pirko .ndo_set_mac_address = team_set_mac_address, 13343d249d4cSJiri Pirko .ndo_change_mtu = team_change_mtu, 13353d249d4cSJiri Pirko .ndo_get_stats64 = team_get_stats64, 13363d249d4cSJiri Pirko .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, 13373d249d4cSJiri Pirko .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, 13383d249d4cSJiri Pirko .ndo_add_slave = team_add_slave, 13393d249d4cSJiri Pirko .ndo_del_slave = team_del_slave, 1340234a8fd4SJiri Pirko .ndo_fix_features = team_fix_features, 13413d249d4cSJiri Pirko }; 13423d249d4cSJiri Pirko 13433d249d4cSJiri Pirko 13443d249d4cSJiri Pirko /*********************** 13453d249d4cSJiri Pirko * rt netlink interface 13463d249d4cSJiri Pirko ***********************/ 13473d249d4cSJiri Pirko 13483d249d4cSJiri Pirko static void team_setup(struct net_device *dev) 13493d249d4cSJiri Pirko { 13503d249d4cSJiri Pirko ether_setup(dev); 13513d249d4cSJiri Pirko 13523d249d4cSJiri Pirko dev->netdev_ops = &team_netdev_ops; 13533d249d4cSJiri Pirko dev->destructor = team_destructor; 13543d249d4cSJiri Pirko dev->tx_queue_len = 0; 13553d249d4cSJiri Pirko dev->flags |= IFF_MULTICAST; 13563d249d4cSJiri Pirko dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); 13573d249d4cSJiri Pirko 13583d249d4cSJiri Pirko /* 13593d249d4cSJiri Pirko * Indicate we support unicast address filtering. That way core won't 13603d249d4cSJiri Pirko * bring us to promisc mode in case a unicast addr is added. 13613d249d4cSJiri Pirko * Let this up to underlay drivers. 13623d249d4cSJiri Pirko */ 13633d249d4cSJiri Pirko dev->priv_flags |= IFF_UNICAST_FLT; 13643d249d4cSJiri Pirko 13653d249d4cSJiri Pirko dev->features |= NETIF_F_LLTX; 13663d249d4cSJiri Pirko dev->features |= NETIF_F_GRO; 13673d249d4cSJiri Pirko dev->hw_features = NETIF_F_HW_VLAN_TX | 13683d249d4cSJiri Pirko NETIF_F_HW_VLAN_RX | 13693d249d4cSJiri Pirko NETIF_F_HW_VLAN_FILTER; 13703d249d4cSJiri Pirko 13713d249d4cSJiri Pirko dev->features |= dev->hw_features; 13723d249d4cSJiri Pirko } 13733d249d4cSJiri Pirko 13743d249d4cSJiri Pirko static int team_newlink(struct net *src_net, struct net_device *dev, 13753d249d4cSJiri Pirko struct nlattr *tb[], struct nlattr *data[]) 13763d249d4cSJiri Pirko { 13773d249d4cSJiri Pirko int err; 13783d249d4cSJiri Pirko 13793d249d4cSJiri Pirko if (tb[IFLA_ADDRESS] == NULL) 13807ce5d222SDanny Kukawka eth_hw_addr_random(dev); 13813d249d4cSJiri Pirko 13823d249d4cSJiri Pirko err = register_netdevice(dev); 13833d249d4cSJiri Pirko if (err) 13843d249d4cSJiri Pirko return err; 13853d249d4cSJiri Pirko 13863d249d4cSJiri Pirko return 0; 13873d249d4cSJiri Pirko } 13883d249d4cSJiri Pirko 13893d249d4cSJiri Pirko static int team_validate(struct nlattr *tb[], struct nlattr *data[]) 13903d249d4cSJiri Pirko { 13913d249d4cSJiri Pirko if (tb[IFLA_ADDRESS]) { 13923d249d4cSJiri Pirko if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 13933d249d4cSJiri Pirko return -EINVAL; 13943d249d4cSJiri Pirko if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 13953d249d4cSJiri Pirko return -EADDRNOTAVAIL; 13963d249d4cSJiri Pirko } 13973d249d4cSJiri Pirko return 0; 13983d249d4cSJiri Pirko } 13993d249d4cSJiri Pirko 14003d249d4cSJiri Pirko static struct rtnl_link_ops team_link_ops __read_mostly = { 14013d249d4cSJiri Pirko .kind = DRV_NAME, 14023d249d4cSJiri Pirko .priv_size = sizeof(struct team), 14033d249d4cSJiri Pirko .setup = team_setup, 14043d249d4cSJiri Pirko .newlink = team_newlink, 14053d249d4cSJiri Pirko .validate = team_validate, 14063d249d4cSJiri Pirko }; 14073d249d4cSJiri Pirko 14083d249d4cSJiri Pirko 14093d249d4cSJiri Pirko /*********************************** 14103d249d4cSJiri Pirko * Generic netlink custom interface 14113d249d4cSJiri Pirko ***********************************/ 14123d249d4cSJiri Pirko 14133d249d4cSJiri Pirko static struct genl_family team_nl_family = { 14143d249d4cSJiri Pirko .id = GENL_ID_GENERATE, 14153d249d4cSJiri Pirko .name = TEAM_GENL_NAME, 14163d249d4cSJiri Pirko .version = TEAM_GENL_VERSION, 14173d249d4cSJiri Pirko .maxattr = TEAM_ATTR_MAX, 14183d249d4cSJiri Pirko .netnsok = true, 14193d249d4cSJiri Pirko }; 14203d249d4cSJiri Pirko 14213d249d4cSJiri Pirko static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { 14223d249d4cSJiri Pirko [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, 14233d249d4cSJiri Pirko [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, 14243d249d4cSJiri Pirko [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, 14253d249d4cSJiri Pirko [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, 14263d249d4cSJiri Pirko }; 14273d249d4cSJiri Pirko 14283d249d4cSJiri Pirko static const struct nla_policy 14293d249d4cSJiri Pirko team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { 14303d249d4cSJiri Pirko [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, 14313d249d4cSJiri Pirko [TEAM_ATTR_OPTION_NAME] = { 14323d249d4cSJiri Pirko .type = NLA_STRING, 14333d249d4cSJiri Pirko .len = TEAM_STRING_MAX_LEN, 14343d249d4cSJiri Pirko }, 14353d249d4cSJiri Pirko [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, 14363d249d4cSJiri Pirko [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, 14372615598fSJiri Pirko [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, 14383d249d4cSJiri Pirko }; 14393d249d4cSJiri Pirko 14403d249d4cSJiri Pirko static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) 14413d249d4cSJiri Pirko { 14423d249d4cSJiri Pirko struct sk_buff *msg; 14433d249d4cSJiri Pirko void *hdr; 14443d249d4cSJiri Pirko int err; 14453d249d4cSJiri Pirko 14463d249d4cSJiri Pirko msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 14473d249d4cSJiri Pirko if (!msg) 14483d249d4cSJiri Pirko return -ENOMEM; 14493d249d4cSJiri Pirko 14503d249d4cSJiri Pirko hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, 14513d249d4cSJiri Pirko &team_nl_family, 0, TEAM_CMD_NOOP); 14523d249d4cSJiri Pirko if (IS_ERR(hdr)) { 14533d249d4cSJiri Pirko err = PTR_ERR(hdr); 14543d249d4cSJiri Pirko goto err_msg_put; 14553d249d4cSJiri Pirko } 14563d249d4cSJiri Pirko 14573d249d4cSJiri Pirko genlmsg_end(msg, hdr); 14583d249d4cSJiri Pirko 14593d249d4cSJiri Pirko return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); 14603d249d4cSJiri Pirko 14613d249d4cSJiri Pirko err_msg_put: 14623d249d4cSJiri Pirko nlmsg_free(msg); 14633d249d4cSJiri Pirko 14643d249d4cSJiri Pirko return err; 14653d249d4cSJiri Pirko } 14663d249d4cSJiri Pirko 14673d249d4cSJiri Pirko /* 14683d249d4cSJiri Pirko * Netlink cmd functions should be locked by following two functions. 14698c0713a5SJiri Pirko * Since dev gets held here, that ensures dev won't disappear in between. 14703d249d4cSJiri Pirko */ 14713d249d4cSJiri Pirko static struct team *team_nl_team_get(struct genl_info *info) 14723d249d4cSJiri Pirko { 14733d249d4cSJiri Pirko struct net *net = genl_info_net(info); 14743d249d4cSJiri Pirko int ifindex; 14753d249d4cSJiri Pirko struct net_device *dev; 14763d249d4cSJiri Pirko struct team *team; 14773d249d4cSJiri Pirko 14783d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) 14793d249d4cSJiri Pirko return NULL; 14803d249d4cSJiri Pirko 14813d249d4cSJiri Pirko ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); 14828c0713a5SJiri Pirko dev = dev_get_by_index(net, ifindex); 14833d249d4cSJiri Pirko if (!dev || dev->netdev_ops != &team_netdev_ops) { 14848c0713a5SJiri Pirko if (dev) 14858c0713a5SJiri Pirko dev_put(dev); 14863d249d4cSJiri Pirko return NULL; 14873d249d4cSJiri Pirko } 14883d249d4cSJiri Pirko 14893d249d4cSJiri Pirko team = netdev_priv(dev); 149061dc3461SJiri Pirko mutex_lock(&team->lock); 14913d249d4cSJiri Pirko return team; 14923d249d4cSJiri Pirko } 14933d249d4cSJiri Pirko 14943d249d4cSJiri Pirko static void team_nl_team_put(struct team *team) 14953d249d4cSJiri Pirko { 149661dc3461SJiri Pirko mutex_unlock(&team->lock); 14978c0713a5SJiri Pirko dev_put(team->dev); 14983d249d4cSJiri Pirko } 14993d249d4cSJiri Pirko 15003d249d4cSJiri Pirko static int team_nl_send_generic(struct genl_info *info, struct team *team, 15013d249d4cSJiri Pirko int (*fill_func)(struct sk_buff *skb, 15023d249d4cSJiri Pirko struct genl_info *info, 15033d249d4cSJiri Pirko int flags, struct team *team)) 15043d249d4cSJiri Pirko { 15053d249d4cSJiri Pirko struct sk_buff *skb; 15063d249d4cSJiri Pirko int err; 15073d249d4cSJiri Pirko 15083d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 15093d249d4cSJiri Pirko if (!skb) 15103d249d4cSJiri Pirko return -ENOMEM; 15113d249d4cSJiri Pirko 15123d249d4cSJiri Pirko err = fill_func(skb, info, NLM_F_ACK, team); 15133d249d4cSJiri Pirko if (err < 0) 15143d249d4cSJiri Pirko goto err_fill; 15153d249d4cSJiri Pirko 15163d249d4cSJiri Pirko err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); 15173d249d4cSJiri Pirko return err; 15183d249d4cSJiri Pirko 15193d249d4cSJiri Pirko err_fill: 15203d249d4cSJiri Pirko nlmsg_free(skb); 15213d249d4cSJiri Pirko return err; 15223d249d4cSJiri Pirko } 15233d249d4cSJiri Pirko 1524b82b9183SJiri Pirko static int team_nl_fill_options_get(struct sk_buff *skb, 15253d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 1526b82b9183SJiri Pirko struct team *team, bool fillall) 15273d249d4cSJiri Pirko { 15283d249d4cSJiri Pirko struct nlattr *option_list; 15293d249d4cSJiri Pirko void *hdr; 153080f7c668SJiri Pirko struct team_option_inst *opt_inst; 153180f7c668SJiri Pirko int err; 15323d249d4cSJiri Pirko 15333d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 15343d249d4cSJiri Pirko TEAM_CMD_OPTIONS_GET); 15353d249d4cSJiri Pirko if (IS_ERR(hdr)) 15363d249d4cSJiri Pirko return PTR_ERR(hdr); 15373d249d4cSJiri Pirko 153886ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 153986ebb02dSDavid S. Miller goto nla_put_failure; 15403d249d4cSJiri Pirko option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); 15413d249d4cSJiri Pirko if (!option_list) 15423d249d4cSJiri Pirko return -EMSGSIZE; 15433d249d4cSJiri Pirko 154480f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 15453d249d4cSJiri Pirko struct nlattr *option_item; 154680f7c668SJiri Pirko struct team_option *option = opt_inst->option; 154780f7c668SJiri Pirko struct team_gsetter_ctx ctx; 15483d249d4cSJiri Pirko 1549b82b9183SJiri Pirko /* Include only changed options if fill all mode is not on */ 155080f7c668SJiri Pirko if (!fillall && !opt_inst->changed) 1551b82b9183SJiri Pirko continue; 15523d249d4cSJiri Pirko option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); 15533d249d4cSJiri Pirko if (!option_item) 15543d249d4cSJiri Pirko goto nla_put_failure; 155586ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) 155686ebb02dSDavid S. Miller goto nla_put_failure; 155780f7c668SJiri Pirko if (opt_inst->changed) { 155886ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) 155986ebb02dSDavid S. Miller goto nla_put_failure; 156080f7c668SJiri Pirko opt_inst->changed = false; 1561b82b9183SJiri Pirko } 156280f7c668SJiri Pirko if (opt_inst->removed && 156386ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) 156486ebb02dSDavid S. Miller goto nla_put_failure; 156580f7c668SJiri Pirko if (opt_inst->port && 156680f7c668SJiri Pirko nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, 156780f7c668SJiri Pirko opt_inst->port->dev->ifindex)) 156880f7c668SJiri Pirko goto nla_put_failure; 156980f7c668SJiri Pirko ctx.port = opt_inst->port; 15703d249d4cSJiri Pirko switch (option->type) { 15713d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 157286ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) 157386ebb02dSDavid S. Miller goto nla_put_failure; 157480f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 157580f7c668SJiri Pirko if (err) 157680f7c668SJiri Pirko goto errout; 157780f7c668SJiri Pirko if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, 157880f7c668SJiri Pirko ctx.data.u32_val)) 157986ebb02dSDavid S. Miller goto nla_put_failure; 15803d249d4cSJiri Pirko break; 15813d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 158286ebb02dSDavid S. Miller if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) 158386ebb02dSDavid S. Miller goto nla_put_failure; 158480f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 158580f7c668SJiri Pirko if (err) 158680f7c668SJiri Pirko goto errout; 158786ebb02dSDavid S. Miller if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, 158880f7c668SJiri Pirko ctx.data.str_val)) 158986ebb02dSDavid S. Miller goto nla_put_failure; 15903d249d4cSJiri Pirko break; 15912615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 15922615598fSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) 15932615598fSJiri Pirko goto nla_put_failure; 159480f7c668SJiri Pirko err = team_option_get(team, opt_inst, &ctx); 159580f7c668SJiri Pirko if (err) 159680f7c668SJiri Pirko goto errout; 15972615598fSJiri Pirko if (nla_put(skb, TEAM_ATTR_OPTION_DATA, 159880f7c668SJiri Pirko ctx.data.bin_val.len, ctx.data.bin_val.ptr)) 15992615598fSJiri Pirko goto nla_put_failure; 16002615598fSJiri Pirko break; 160114f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 160214f066baSJiri Pirko if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) 160314f066baSJiri Pirko goto nla_put_failure; 160414f066baSJiri Pirko err = team_option_get(team, opt_inst, &ctx); 160514f066baSJiri Pirko if (err) 160614f066baSJiri Pirko goto errout; 160714f066baSJiri Pirko if (ctx.data.bool_val && 160814f066baSJiri Pirko nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) 160914f066baSJiri Pirko goto nla_put_failure; 161014f066baSJiri Pirko break; 16113d249d4cSJiri Pirko default: 16123d249d4cSJiri Pirko BUG(); 16133d249d4cSJiri Pirko } 16143d249d4cSJiri Pirko nla_nest_end(skb, option_item); 16153d249d4cSJiri Pirko } 16163d249d4cSJiri Pirko 16173d249d4cSJiri Pirko nla_nest_end(skb, option_list); 16183d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 16193d249d4cSJiri Pirko 16203d249d4cSJiri Pirko nla_put_failure: 162180f7c668SJiri Pirko err = -EMSGSIZE; 162280f7c668SJiri Pirko errout: 16233d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 162480f7c668SJiri Pirko return err; 16253d249d4cSJiri Pirko } 16263d249d4cSJiri Pirko 1627b82b9183SJiri Pirko static int team_nl_fill_options_get_all(struct sk_buff *skb, 16283d249d4cSJiri Pirko struct genl_info *info, int flags, 16293d249d4cSJiri Pirko struct team *team) 16303d249d4cSJiri Pirko { 1631b82b9183SJiri Pirko return team_nl_fill_options_get(skb, info->snd_pid, 16323d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 1633b82b9183SJiri Pirko team, true); 16343d249d4cSJiri Pirko } 16353d249d4cSJiri Pirko 16363d249d4cSJiri Pirko static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) 16373d249d4cSJiri Pirko { 16383d249d4cSJiri Pirko struct team *team; 16393d249d4cSJiri Pirko int err; 16403d249d4cSJiri Pirko 16413d249d4cSJiri Pirko team = team_nl_team_get(info); 16423d249d4cSJiri Pirko if (!team) 16433d249d4cSJiri Pirko return -EINVAL; 16443d249d4cSJiri Pirko 1645b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_options_get_all); 16463d249d4cSJiri Pirko 16473d249d4cSJiri Pirko team_nl_team_put(team); 16483d249d4cSJiri Pirko 16493d249d4cSJiri Pirko return err; 16503d249d4cSJiri Pirko } 16513d249d4cSJiri Pirko 16523d249d4cSJiri Pirko static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) 16533d249d4cSJiri Pirko { 16543d249d4cSJiri Pirko struct team *team; 16553d249d4cSJiri Pirko int err = 0; 16563d249d4cSJiri Pirko int i; 16573d249d4cSJiri Pirko struct nlattr *nl_option; 16583d249d4cSJiri Pirko 16593d249d4cSJiri Pirko team = team_nl_team_get(info); 16603d249d4cSJiri Pirko if (!team) 16613d249d4cSJiri Pirko return -EINVAL; 16623d249d4cSJiri Pirko 16633d249d4cSJiri Pirko err = -EINVAL; 16643d249d4cSJiri Pirko if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { 16653d249d4cSJiri Pirko err = -EINVAL; 16663d249d4cSJiri Pirko goto team_put; 16673d249d4cSJiri Pirko } 16683d249d4cSJiri Pirko 16693d249d4cSJiri Pirko nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { 167080f7c668SJiri Pirko struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; 167180f7c668SJiri Pirko struct nlattr *attr_port_ifindex; 167214f066baSJiri Pirko struct nlattr *attr_data; 16733d249d4cSJiri Pirko enum team_option_type opt_type; 167480f7c668SJiri Pirko int opt_port_ifindex = 0; /* != 0 for per-port options */ 167580f7c668SJiri Pirko struct team_option_inst *opt_inst; 16763d249d4cSJiri Pirko char *opt_name; 16773d249d4cSJiri Pirko bool opt_found = false; 16783d249d4cSJiri Pirko 16793d249d4cSJiri Pirko if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { 16803d249d4cSJiri Pirko err = -EINVAL; 16813d249d4cSJiri Pirko goto team_put; 16823d249d4cSJiri Pirko } 168380f7c668SJiri Pirko err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, 16843d249d4cSJiri Pirko nl_option, team_nl_option_policy); 16853d249d4cSJiri Pirko if (err) 16863d249d4cSJiri Pirko goto team_put; 168780f7c668SJiri Pirko if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || 168814f066baSJiri Pirko !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { 16893d249d4cSJiri Pirko err = -EINVAL; 16903d249d4cSJiri Pirko goto team_put; 16913d249d4cSJiri Pirko } 169280f7c668SJiri Pirko switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { 16933d249d4cSJiri Pirko case NLA_U32: 16943d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_U32; 16953d249d4cSJiri Pirko break; 16963d249d4cSJiri Pirko case NLA_STRING: 16973d249d4cSJiri Pirko opt_type = TEAM_OPTION_TYPE_STRING; 16983d249d4cSJiri Pirko break; 16992615598fSJiri Pirko case NLA_BINARY: 17002615598fSJiri Pirko opt_type = TEAM_OPTION_TYPE_BINARY; 17012615598fSJiri Pirko break; 170214f066baSJiri Pirko case NLA_FLAG: 170314f066baSJiri Pirko opt_type = TEAM_OPTION_TYPE_BOOL; 170414f066baSJiri Pirko break; 17053d249d4cSJiri Pirko default: 17063d249d4cSJiri Pirko goto team_put; 17073d249d4cSJiri Pirko } 17083d249d4cSJiri Pirko 170914f066baSJiri Pirko attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; 171014f066baSJiri Pirko if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { 171114f066baSJiri Pirko err = -EINVAL; 171214f066baSJiri Pirko goto team_put; 171314f066baSJiri Pirko } 171414f066baSJiri Pirko 171580f7c668SJiri Pirko opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); 171680f7c668SJiri Pirko attr_port_ifindex = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; 171780f7c668SJiri Pirko if (attr_port_ifindex) 171880f7c668SJiri Pirko opt_port_ifindex = nla_get_u32(attr_port_ifindex); 17193d249d4cSJiri Pirko 172080f7c668SJiri Pirko list_for_each_entry(opt_inst, &team->option_inst_list, list) { 172180f7c668SJiri Pirko struct team_option *option = opt_inst->option; 172280f7c668SJiri Pirko struct team_gsetter_ctx ctx; 172380f7c668SJiri Pirko int tmp_ifindex; 172480f7c668SJiri Pirko 172580f7c668SJiri Pirko tmp_ifindex = opt_inst->port ? 172680f7c668SJiri Pirko opt_inst->port->dev->ifindex : 0; 17273d249d4cSJiri Pirko if (option->type != opt_type || 172880f7c668SJiri Pirko strcmp(option->name, opt_name) || 172980f7c668SJiri Pirko tmp_ifindex != opt_port_ifindex) 17303d249d4cSJiri Pirko continue; 17313d249d4cSJiri Pirko opt_found = true; 173280f7c668SJiri Pirko ctx.port = opt_inst->port; 17333d249d4cSJiri Pirko switch (opt_type) { 17343d249d4cSJiri Pirko case TEAM_OPTION_TYPE_U32: 173514f066baSJiri Pirko ctx.data.u32_val = nla_get_u32(attr_data); 17363d249d4cSJiri Pirko break; 17373d249d4cSJiri Pirko case TEAM_OPTION_TYPE_STRING: 173814f066baSJiri Pirko if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { 17392615598fSJiri Pirko err = -EINVAL; 17402615598fSJiri Pirko goto team_put; 17412615598fSJiri Pirko } 174214f066baSJiri Pirko ctx.data.str_val = nla_data(attr_data); 17433d249d4cSJiri Pirko break; 17442615598fSJiri Pirko case TEAM_OPTION_TYPE_BINARY: 174514f066baSJiri Pirko ctx.data.bin_val.len = nla_len(attr_data); 174614f066baSJiri Pirko ctx.data.bin_val.ptr = nla_data(attr_data); 174714f066baSJiri Pirko break; 174814f066baSJiri Pirko case TEAM_OPTION_TYPE_BOOL: 174914f066baSJiri Pirko ctx.data.bool_val = attr_data ? true : false; 17502615598fSJiri Pirko break; 17513d249d4cSJiri Pirko default: 17523d249d4cSJiri Pirko BUG(); 17533d249d4cSJiri Pirko } 175480f7c668SJiri Pirko err = team_option_set(team, opt_inst, &ctx); 17553d249d4cSJiri Pirko if (err) 17563d249d4cSJiri Pirko goto team_put; 17573d249d4cSJiri Pirko } 17583d249d4cSJiri Pirko if (!opt_found) { 17593d249d4cSJiri Pirko err = -ENOENT; 17603d249d4cSJiri Pirko goto team_put; 17613d249d4cSJiri Pirko } 17623d249d4cSJiri Pirko } 17633d249d4cSJiri Pirko 17643d249d4cSJiri Pirko team_put: 17653d249d4cSJiri Pirko team_nl_team_put(team); 17663d249d4cSJiri Pirko 17673d249d4cSJiri Pirko return err; 17683d249d4cSJiri Pirko } 17693d249d4cSJiri Pirko 1770b82b9183SJiri Pirko static int team_nl_fill_port_list_get(struct sk_buff *skb, 17713d249d4cSJiri Pirko u32 pid, u32 seq, int flags, 17723d249d4cSJiri Pirko struct team *team, 1773b82b9183SJiri Pirko bool fillall) 17743d249d4cSJiri Pirko { 17753d249d4cSJiri Pirko struct nlattr *port_list; 17763d249d4cSJiri Pirko void *hdr; 17773d249d4cSJiri Pirko struct team_port *port; 17783d249d4cSJiri Pirko 17793d249d4cSJiri Pirko hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, 17803d249d4cSJiri Pirko TEAM_CMD_PORT_LIST_GET); 17813d249d4cSJiri Pirko if (IS_ERR(hdr)) 17823d249d4cSJiri Pirko return PTR_ERR(hdr); 17833d249d4cSJiri Pirko 178486ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) 178586ebb02dSDavid S. Miller goto nla_put_failure; 17863d249d4cSJiri Pirko port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); 17873d249d4cSJiri Pirko if (!port_list) 17883d249d4cSJiri Pirko return -EMSGSIZE; 17893d249d4cSJiri Pirko 17903d249d4cSJiri Pirko list_for_each_entry(port, &team->port_list, list) { 17913d249d4cSJiri Pirko struct nlattr *port_item; 17923d249d4cSJiri Pirko 1793b82b9183SJiri Pirko /* Include only changed ports if fill all mode is not on */ 1794b82b9183SJiri Pirko if (!fillall && !port->changed) 1795b82b9183SJiri Pirko continue; 17963d249d4cSJiri Pirko port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); 17973d249d4cSJiri Pirko if (!port_item) 17983d249d4cSJiri Pirko goto nla_put_failure; 179986ebb02dSDavid S. Miller if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) 180086ebb02dSDavid S. Miller goto nla_put_failure; 1801b82b9183SJiri Pirko if (port->changed) { 180286ebb02dSDavid S. Miller if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) 180386ebb02dSDavid S. Miller goto nla_put_failure; 1804b82b9183SJiri Pirko port->changed = false; 1805b82b9183SJiri Pirko } 180686ebb02dSDavid S. Miller if ((port->removed && 180786ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || 180871472ec1SJiri Pirko (port->state.linkup && 180986ebb02dSDavid S. Miller nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || 181071472ec1SJiri Pirko nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || 181171472ec1SJiri Pirko nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) 181286ebb02dSDavid S. Miller goto nla_put_failure; 18133d249d4cSJiri Pirko nla_nest_end(skb, port_item); 18143d249d4cSJiri Pirko } 18153d249d4cSJiri Pirko 18163d249d4cSJiri Pirko nla_nest_end(skb, port_list); 18173d249d4cSJiri Pirko return genlmsg_end(skb, hdr); 18183d249d4cSJiri Pirko 18193d249d4cSJiri Pirko nla_put_failure: 18203d249d4cSJiri Pirko genlmsg_cancel(skb, hdr); 18213d249d4cSJiri Pirko return -EMSGSIZE; 18223d249d4cSJiri Pirko } 18233d249d4cSJiri Pirko 1824b82b9183SJiri Pirko static int team_nl_fill_port_list_get_all(struct sk_buff *skb, 18253d249d4cSJiri Pirko struct genl_info *info, int flags, 18263d249d4cSJiri Pirko struct team *team) 18273d249d4cSJiri Pirko { 1828b82b9183SJiri Pirko return team_nl_fill_port_list_get(skb, info->snd_pid, 18293d249d4cSJiri Pirko info->snd_seq, NLM_F_ACK, 1830b82b9183SJiri Pirko team, true); 18313d249d4cSJiri Pirko } 18323d249d4cSJiri Pirko 18333d249d4cSJiri Pirko static int team_nl_cmd_port_list_get(struct sk_buff *skb, 18343d249d4cSJiri Pirko struct genl_info *info) 18353d249d4cSJiri Pirko { 18363d249d4cSJiri Pirko struct team *team; 18373d249d4cSJiri Pirko int err; 18383d249d4cSJiri Pirko 18393d249d4cSJiri Pirko team = team_nl_team_get(info); 18403d249d4cSJiri Pirko if (!team) 18413d249d4cSJiri Pirko return -EINVAL; 18423d249d4cSJiri Pirko 1843b82b9183SJiri Pirko err = team_nl_send_generic(info, team, team_nl_fill_port_list_get_all); 18443d249d4cSJiri Pirko 18453d249d4cSJiri Pirko team_nl_team_put(team); 18463d249d4cSJiri Pirko 18473d249d4cSJiri Pirko return err; 18483d249d4cSJiri Pirko } 18493d249d4cSJiri Pirko 18503d249d4cSJiri Pirko static struct genl_ops team_nl_ops[] = { 18513d249d4cSJiri Pirko { 18523d249d4cSJiri Pirko .cmd = TEAM_CMD_NOOP, 18533d249d4cSJiri Pirko .doit = team_nl_cmd_noop, 18543d249d4cSJiri Pirko .policy = team_nl_policy, 18553d249d4cSJiri Pirko }, 18563d249d4cSJiri Pirko { 18573d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_SET, 18583d249d4cSJiri Pirko .doit = team_nl_cmd_options_set, 18593d249d4cSJiri Pirko .policy = team_nl_policy, 18603d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18613d249d4cSJiri Pirko }, 18623d249d4cSJiri Pirko { 18633d249d4cSJiri Pirko .cmd = TEAM_CMD_OPTIONS_GET, 18643d249d4cSJiri Pirko .doit = team_nl_cmd_options_get, 18653d249d4cSJiri Pirko .policy = team_nl_policy, 18663d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18673d249d4cSJiri Pirko }, 18683d249d4cSJiri Pirko { 18693d249d4cSJiri Pirko .cmd = TEAM_CMD_PORT_LIST_GET, 18703d249d4cSJiri Pirko .doit = team_nl_cmd_port_list_get, 18713d249d4cSJiri Pirko .policy = team_nl_policy, 18723d249d4cSJiri Pirko .flags = GENL_ADMIN_PERM, 18733d249d4cSJiri Pirko }, 18743d249d4cSJiri Pirko }; 18753d249d4cSJiri Pirko 18763d249d4cSJiri Pirko static struct genl_multicast_group team_change_event_mcgrp = { 18773d249d4cSJiri Pirko .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, 18783d249d4cSJiri Pirko }; 18793d249d4cSJiri Pirko 1880b82b9183SJiri Pirko static int team_nl_send_event_options_get(struct team *team) 18813d249d4cSJiri Pirko { 18823d249d4cSJiri Pirko struct sk_buff *skb; 18833d249d4cSJiri Pirko int err; 18843d249d4cSJiri Pirko struct net *net = dev_net(team->dev); 18853d249d4cSJiri Pirko 18863d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 18873d249d4cSJiri Pirko if (!skb) 18883d249d4cSJiri Pirko return -ENOMEM; 18893d249d4cSJiri Pirko 1890b82b9183SJiri Pirko err = team_nl_fill_options_get(skb, 0, 0, 0, team, false); 18913d249d4cSJiri Pirko if (err < 0) 18923d249d4cSJiri Pirko goto err_fill; 18933d249d4cSJiri Pirko 18943d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 18953d249d4cSJiri Pirko GFP_KERNEL); 18963d249d4cSJiri Pirko return err; 18973d249d4cSJiri Pirko 18983d249d4cSJiri Pirko err_fill: 18993d249d4cSJiri Pirko nlmsg_free(skb); 19003d249d4cSJiri Pirko return err; 19013d249d4cSJiri Pirko } 19023d249d4cSJiri Pirko 1903b82b9183SJiri Pirko static int team_nl_send_event_port_list_get(struct team *team) 19043d249d4cSJiri Pirko { 19053d249d4cSJiri Pirko struct sk_buff *skb; 19063d249d4cSJiri Pirko int err; 1907b82b9183SJiri Pirko struct net *net = dev_net(team->dev); 19083d249d4cSJiri Pirko 19093d249d4cSJiri Pirko skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 19103d249d4cSJiri Pirko if (!skb) 19113d249d4cSJiri Pirko return -ENOMEM; 19123d249d4cSJiri Pirko 1913b82b9183SJiri Pirko err = team_nl_fill_port_list_get(skb, 0, 0, 0, team, false); 19143d249d4cSJiri Pirko if (err < 0) 19153d249d4cSJiri Pirko goto err_fill; 19163d249d4cSJiri Pirko 19173d249d4cSJiri Pirko err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, 19183d249d4cSJiri Pirko GFP_KERNEL); 19193d249d4cSJiri Pirko return err; 19203d249d4cSJiri Pirko 19213d249d4cSJiri Pirko err_fill: 19223d249d4cSJiri Pirko nlmsg_free(skb); 19233d249d4cSJiri Pirko return err; 19243d249d4cSJiri Pirko } 19253d249d4cSJiri Pirko 19263d249d4cSJiri Pirko static int team_nl_init(void) 19273d249d4cSJiri Pirko { 19283d249d4cSJiri Pirko int err; 19293d249d4cSJiri Pirko 19303d249d4cSJiri Pirko err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, 19313d249d4cSJiri Pirko ARRAY_SIZE(team_nl_ops)); 19323d249d4cSJiri Pirko if (err) 19333d249d4cSJiri Pirko return err; 19343d249d4cSJiri Pirko 19353d249d4cSJiri Pirko err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); 19363d249d4cSJiri Pirko if (err) 19373d249d4cSJiri Pirko goto err_change_event_grp_reg; 19383d249d4cSJiri Pirko 19393d249d4cSJiri Pirko return 0; 19403d249d4cSJiri Pirko 19413d249d4cSJiri Pirko err_change_event_grp_reg: 19423d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 19433d249d4cSJiri Pirko 19443d249d4cSJiri Pirko return err; 19453d249d4cSJiri Pirko } 19463d249d4cSJiri Pirko 19473d249d4cSJiri Pirko static void team_nl_fini(void) 19483d249d4cSJiri Pirko { 19493d249d4cSJiri Pirko genl_unregister_family(&team_nl_family); 19503d249d4cSJiri Pirko } 19513d249d4cSJiri Pirko 19523d249d4cSJiri Pirko 19533d249d4cSJiri Pirko /****************** 19543d249d4cSJiri Pirko * Change checkers 19553d249d4cSJiri Pirko ******************/ 19563d249d4cSJiri Pirko 1957b82b9183SJiri Pirko static void __team_options_change_check(struct team *team) 19583d249d4cSJiri Pirko { 19593d249d4cSJiri Pirko int err; 19603d249d4cSJiri Pirko 1961b82b9183SJiri Pirko err = team_nl_send_event_options_get(team); 19623d249d4cSJiri Pirko if (err) 19633d249d4cSJiri Pirko netdev_warn(team->dev, "Failed to send options change via netlink\n"); 19643d249d4cSJiri Pirko } 19653d249d4cSJiri Pirko 19663d249d4cSJiri Pirko /* rtnl lock is held */ 19673d249d4cSJiri Pirko static void __team_port_change_check(struct team_port *port, bool linkup) 19683d249d4cSJiri Pirko { 19693d249d4cSJiri Pirko int err; 19703d249d4cSJiri Pirko 197171472ec1SJiri Pirko if (!port->removed && port->state.linkup == linkup) 19723d249d4cSJiri Pirko return; 19733d249d4cSJiri Pirko 1974b82b9183SJiri Pirko port->changed = true; 197571472ec1SJiri Pirko port->state.linkup = linkup; 197671472ec1SJiri Pirko team_refresh_port_linkup(port); 19773d249d4cSJiri Pirko if (linkup) { 19783d249d4cSJiri Pirko struct ethtool_cmd ecmd; 19793d249d4cSJiri Pirko 19803d249d4cSJiri Pirko err = __ethtool_get_settings(port->dev, &ecmd); 19813d249d4cSJiri Pirko if (!err) { 198271472ec1SJiri Pirko port->state.speed = ethtool_cmd_speed(&ecmd); 198371472ec1SJiri Pirko port->state.duplex = ecmd.duplex; 19843d249d4cSJiri Pirko goto send_event; 19853d249d4cSJiri Pirko } 19863d249d4cSJiri Pirko } 198771472ec1SJiri Pirko port->state.speed = 0; 198871472ec1SJiri Pirko port->state.duplex = 0; 19893d249d4cSJiri Pirko 19903d249d4cSJiri Pirko send_event: 1991b82b9183SJiri Pirko err = team_nl_send_event_port_list_get(port->team); 19923d249d4cSJiri Pirko if (err) 19933d249d4cSJiri Pirko netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink\n", 19943d249d4cSJiri Pirko port->dev->name); 19953d249d4cSJiri Pirko 19963d249d4cSJiri Pirko } 19973d249d4cSJiri Pirko 19983d249d4cSJiri Pirko static void team_port_change_check(struct team_port *port, bool linkup) 19993d249d4cSJiri Pirko { 20003d249d4cSJiri Pirko struct team *team = port->team; 20013d249d4cSJiri Pirko 200261dc3461SJiri Pirko mutex_lock(&team->lock); 20033d249d4cSJiri Pirko __team_port_change_check(port, linkup); 200461dc3461SJiri Pirko mutex_unlock(&team->lock); 20053d249d4cSJiri Pirko } 20063d249d4cSJiri Pirko 20073d249d4cSJiri Pirko /************************************ 20083d249d4cSJiri Pirko * Net device notifier event handler 20093d249d4cSJiri Pirko ************************************/ 20103d249d4cSJiri Pirko 20113d249d4cSJiri Pirko static int team_device_event(struct notifier_block *unused, 20123d249d4cSJiri Pirko unsigned long event, void *ptr) 20133d249d4cSJiri Pirko { 20143d249d4cSJiri Pirko struct net_device *dev = (struct net_device *) ptr; 20153d249d4cSJiri Pirko struct team_port *port; 20163d249d4cSJiri Pirko 20173d249d4cSJiri Pirko port = team_port_get_rtnl(dev); 20183d249d4cSJiri Pirko if (!port) 20193d249d4cSJiri Pirko return NOTIFY_DONE; 20203d249d4cSJiri Pirko 20213d249d4cSJiri Pirko switch (event) { 20223d249d4cSJiri Pirko case NETDEV_UP: 20233d249d4cSJiri Pirko if (netif_carrier_ok(dev)) 20243d249d4cSJiri Pirko team_port_change_check(port, true); 20253d249d4cSJiri Pirko case NETDEV_DOWN: 20263d249d4cSJiri Pirko team_port_change_check(port, false); 20273d249d4cSJiri Pirko case NETDEV_CHANGE: 20283d249d4cSJiri Pirko if (netif_running(port->dev)) 20293d249d4cSJiri Pirko team_port_change_check(port, 20303d249d4cSJiri Pirko !!netif_carrier_ok(port->dev)); 20313d249d4cSJiri Pirko break; 20323d249d4cSJiri Pirko case NETDEV_UNREGISTER: 20333d249d4cSJiri Pirko team_del_slave(port->team->dev, dev); 20343d249d4cSJiri Pirko break; 20353d249d4cSJiri Pirko case NETDEV_FEAT_CHANGE: 20363d249d4cSJiri Pirko team_compute_features(port->team); 20373d249d4cSJiri Pirko break; 20383d249d4cSJiri Pirko case NETDEV_CHANGEMTU: 20393d249d4cSJiri Pirko /* Forbid to change mtu of underlaying device */ 20403d249d4cSJiri Pirko return NOTIFY_BAD; 20413d249d4cSJiri Pirko case NETDEV_PRE_TYPE_CHANGE: 20423d249d4cSJiri Pirko /* Forbid to change type of underlaying device */ 20433d249d4cSJiri Pirko return NOTIFY_BAD; 20443d249d4cSJiri Pirko } 20453d249d4cSJiri Pirko return NOTIFY_DONE; 20463d249d4cSJiri Pirko } 20473d249d4cSJiri Pirko 20483d249d4cSJiri Pirko static struct notifier_block team_notifier_block __read_mostly = { 20493d249d4cSJiri Pirko .notifier_call = team_device_event, 20503d249d4cSJiri Pirko }; 20513d249d4cSJiri Pirko 20523d249d4cSJiri Pirko 20533d249d4cSJiri Pirko /*********************** 20543d249d4cSJiri Pirko * Module init and exit 20553d249d4cSJiri Pirko ***********************/ 20563d249d4cSJiri Pirko 20573d249d4cSJiri Pirko static int __init team_module_init(void) 20583d249d4cSJiri Pirko { 20593d249d4cSJiri Pirko int err; 20603d249d4cSJiri Pirko 20613d249d4cSJiri Pirko register_netdevice_notifier(&team_notifier_block); 20623d249d4cSJiri Pirko 20633d249d4cSJiri Pirko err = rtnl_link_register(&team_link_ops); 20643d249d4cSJiri Pirko if (err) 20653d249d4cSJiri Pirko goto err_rtnl_reg; 20663d249d4cSJiri Pirko 20673d249d4cSJiri Pirko err = team_nl_init(); 20683d249d4cSJiri Pirko if (err) 20693d249d4cSJiri Pirko goto err_nl_init; 20703d249d4cSJiri Pirko 20713d249d4cSJiri Pirko return 0; 20723d249d4cSJiri Pirko 20733d249d4cSJiri Pirko err_nl_init: 20743d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 20753d249d4cSJiri Pirko 20763d249d4cSJiri Pirko err_rtnl_reg: 20773d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 20783d249d4cSJiri Pirko 20793d249d4cSJiri Pirko return err; 20803d249d4cSJiri Pirko } 20813d249d4cSJiri Pirko 20823d249d4cSJiri Pirko static void __exit team_module_exit(void) 20833d249d4cSJiri Pirko { 20843d249d4cSJiri Pirko team_nl_fini(); 20853d249d4cSJiri Pirko rtnl_link_unregister(&team_link_ops); 20863d249d4cSJiri Pirko unregister_netdevice_notifier(&team_notifier_block); 20873d249d4cSJiri Pirko } 20883d249d4cSJiri Pirko 20893d249d4cSJiri Pirko module_init(team_module_init); 20903d249d4cSJiri Pirko module_exit(team_module_exit); 20913d249d4cSJiri Pirko 20923d249d4cSJiri Pirko MODULE_LICENSE("GPL v2"); 20933d249d4cSJiri Pirko MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); 20943d249d4cSJiri Pirko MODULE_DESCRIPTION("Ethernet team device driver"); 20953d249d4cSJiri Pirko MODULE_ALIAS_RTNL_LINK(DRV_NAME); 2096