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* net: Add lag.h, net_lag_port_dev_txable()Petr Machata2018-07-111-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LAG devices (team or bond) recognize for each one of their slave devices whether LAG traffic is going to be sent through that device. Bond calls such devices "active", team calls them "txable". When this state changes, a NETDEV_CHANGELOWERSTATE notification is distributed, together with a netdev_notifier_changelowerstate_info structure that for LAG devices includes a tx_enabled flag that refers to the new state. The notification thus makes it possible to react to the changes in txability in drivers. However there's no way to query txability from the outside on demand. That is problematic namely for mlxsw, which when resolving ERSPAN packet path, may encounter a LAG device, and needs to determine which of the slaves it should choose. To that end, introduce a new function, net_lag_port_dev_txable(), which determines whether a given slave device is "active" or "txable" (depending on the flavor of the LAG device). That function then dispatches to per-LAG-flavor helpers, bond_is_active_slave_dev() resp. team_port_dev_txable(). Because there currently is no good place where net_lag_port_dev_txable() should be added, introduce a new header file, lag.h, which should from now on hold any logic common to both team and bond. (But keep netif_is_lag_master() together with the rest of netif_is_*_master() functions). Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: Publish team_port_get_rcu()Petr Machata2018-07-111-0/+5
| | | | | | | | | | | | | | | | | | | A follow-up patch adds a new entry point, team_port_dev_txable(). Making it an ordinary exported function would mean that any module that may need the service in one of the supported configurations also unconditionally needs to pull in the team module, whether or not the user actually intends to create team interfaces. To prevent that, team_port_dev_txable() is defined in if_team.h, and therefore all dependencies of that function also need to be publicly-visible. Therefore move team_port_get_rcu() from team.c to if_team.h. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns ↵Mark Rutland2017-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to READ_ONCE()/WRITE_ONCE() Please do not apply this to mainline directly, instead please re-run the coccinelle script shown below and apply its output. For several reasons, it is desirable to use {READ,WRITE}_ONCE() in preference to ACCESS_ONCE(), and new code is expected to use one of the former. So far, there's been no reason to change most existing uses of ACCESS_ONCE(), as these aren't harmful, and changing them results in churn. However, for some features, the read/write distinction is critical to correct operation. To distinguish these cases, separate read/write accessors must be used. This patch migrates (most) remaining ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following coccinelle script: ---- // Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and // WRITE_ONCE() // $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch virtual patch @ depends on patch @ expression E1, E2; @@ - ACCESS_ONCE(E1) = E2 + WRITE_ONCE(E1, E2) @ depends on patch @ expression E; @@ - ACCESS_ONCE(E) + READ_ONCE(E) ---- Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: davem@davemloft.net Cc: linux-arch@vger.kernel.org Cc: mpe@ellerman.id.au Cc: shuah@kernel.org Cc: snitzer@redhat.com Cc: thor.thayer@linux.intel.com Cc: tj@kernel.org Cc: viro@zeniv.linux.org.uk Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* team: add macro MODULE_ALIAS_TEAM_MODE for team mode aliasZhang Shengju2017-06-021-0/+2
| | | | | | | | | Add a new macro MODULE_ALIAS_TEAM_MODE to unify and simplify the declaration of team mode alias. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Fixing a bug in team driver due to incorrect 'unsigned int' to 'int' conversionAlex Sidorenko2016-10-071-1/+1
| | | | | | | | | | | | | | | Roundrobin runner of team driver uses 'unsigned int' variable to count the number of sent_packets. Later it is passed to a subroutine team_num_to_port_index(struct team *team, int num) as 'num' and when we reach MAXINT (2**31-1), 'num' becomes negative. This leads to using incorrect hash-bucket for port lookup and as a result, packets are dropped. The fix consists of changing 'int num' to 'unsigned int num'. Testing of a fixed kernel shows that there is no packet drop anymore. Signed-off-by: Alex Sidorenko <alexandre.sidorenko@hpe.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: track sum of rx_nohandler for all slavesJarod Wilson2016-02-061-0/+1
| | | | | | | CC: Jiri Pirko <jiri@resnulli.us> CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: fill-up LAG changeupper info struct and pass it alongJiri Pirko2015-12-031-0/+1
| | | | | | | | Initialize netdev_lag_upper_info structure by TX type according to current team mode and pass it along via netdev_master_upper_dev_link. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: fix mtu settingJiri Pirko2014-06-021-0/+1
| | | | | | | | | | | | | | Now it is not possible to set mtu to team device which has a port enslaved to it. The reason is that when team_change_mtu() calls dev_set_mtu() for port device, notificator for NETDEV_PRECHANGEMTU event is called and team_device_event() returns NOTIFY_BAD forbidding the change. So fix this by returning NOTIFY_DONE here in case team is changing mtu in team_change_mtu(). Introduced-by: 3d249d4c "net: introduce ethernet teaming device" Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add support for sending multicast rejoinsJiri Pirko2013-07-231-0/+6
| | | | | | | | | Similar to what is implemented in bonding. User is able to ask team driver to send IGMP rejoins in case port is enabled or disabled. Using previously introduced netdev notifier. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add peer notificationJiri Pirko2013-07-231-1/+7
| | | | | | | | When port is enabled or disabled, allow to notify peers by unsolicitated NAs or gratuitous ARPs. Disabled by default. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2013-06-191-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/wireless/ath/ath9k/Kconfig drivers/net/xen-netback/netback.c net/batman-adv/bat_iv_ogm.c net/wireless/nl80211.c The ath9k Kconfig conflict was a change of a Kconfig option name right next to the deletion of another option. The xen-netback conflict was overlapping changes involving the handling of the notify list in xen_netbk_rx_action(). Batman conflict resolution provided by Antonio Quartulli, basically keep everything in both conflict hunks. The nl80211 conflict is a little more involved. In 'net' we added a dynamic memory allocation to nl80211_dump_wiphy() to fix a race that Linus reported. Meanwhile in 'net-next' the handlers were converted to use pre and post doit handlers which use a flag to determine whether to hold the RTNL mutex around the operation. However, the dump handlers to not use this logic. Instead they have to explicitly do the locking. There were apparent bugs in the conversion of nl80211_dump_wiphy() in that we were not dropping the RTNL mutex in all the return paths, and it seems we very much should be doing so. So I fixed that whilst handling the overlapping changes. To simplify the initial returns, I take the RTNL mutex after we try to allocate 'tb'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * team: fix checks in team_get_first_port_txable_rcu()Jiri Pirko2013-06-121-2/+2
| | | | | | | | | | | | | | | | | | | | should be checked if "cur" is txable, not "port". Introduced by commit 6e88e1357c "team: use function team_port_txable() for determing enabled and up port" Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: remove synchronize_rcu() called during port disableJiri Pirko2013-06-121-0/+10
| | | | | | | | | | | | | | | | Check the unlikely case of team->en_port_count == 0 before modulo operation. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: use kfree_rcu instead of synchronize_rcu in team_port_devJiri Pirko2013-06-121-0/+1
|/ | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: introduce random modeJiri Pirko2013-03-061-0/+20
| | | | | | | | | As suggested by Eric Dumazet, allow user to select mode which chooses TX port randomly. Functionality should be more of less similar to round-robin mode with even lower overhead. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: introduce two default team_modeop functions and use them in modesJiri Pirko2013-03-061-1/+4
| | | | | | | No need to duplicate code for this. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* hlist: drop the node parameter from iteratorsSasha Levin2013-02-271-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* team: allow userspace to take control over carrierFlavio Leitner2013-02-061-0/+1
| | | | | | | | | | | | | | | | | | Some modes don't require any special carrier handling so in these cases, the kernel can control the carrier as for any other interface. However, some other modes, e.g. lacp, requires more than just that, so userspace needs to control the carrier itself. The daemon today is ready to control it, but the kernel still can change it based on events. This fix so that either kernel or userspace is controlling the carrier. Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* UAPI: (Scripted) Disintegrate include/linuxDavid Howells2012-10-131-96/+1
| | | | | | | | | Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-08-221-15/+15
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| * netpoll: check netpoll tx status on the right deviceAmerigo Wang2012-08-141-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | Although this doesn't matter actually, because netpoll_tx_running() doesn't use the parameter, the code will be more readable. For team_dev_queue_xmit() we have to move it down to avoid compile errors. Cc: David Miller <davem@davemloft.net> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: add support for non-ethernet devicesJiri Pirko2012-08-201-2/+2
| | | | | | | | | | | | | | | | | | This is resolved by two things: 1) allow dev_addr of different length than ETH_ALEN 2) during port add, check for dev->type and change it if necessary Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: add support for queue override by setting queue_id for portJiri Pirko2012-08-031-0/+4
| | | | | | | | | | | | | | | | | | Similar to what bonding has. This allows to set queue_id for port so this port will be used when skb with matching skb->queue_mapping is going to be transmitted. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: add per port priority optionJiri Pirko2012-08-031-0/+1
| | | | | | | | | | | | | | Allow userspace to set port priority. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: add signed 32-bit team option typeJiri Pirko2012-08-031-0/+2
|/ | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add multiqueue supportJiri Pirko2012-07-201-0/+8
| | | | | | | Largely copied from bonding code. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add netpoll supportJiri Pirko2012-07-171-0/+33
| | | | | | | It's done in very similar way this is done in bonding and bridge. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: make team_port_enabled() and team_port_txable() static inlineJiri Pirko2012-07-121-2/+9
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: use function team_port_txable() for determing enabled and up portJiri Pirko2012-07-121-0/+1
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: remove unused rcu_head field from team_port structJiri Pirko2012-06-261-1/+0
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: do not allow to map disabled portsJiri Pirko2012-06-261-0/+2
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add port_[enabled/disabled] mode callbacksJiri Pirko2012-06-191-0/+2
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: allow async option changesJiri Pirko2012-06-191-0/+3
| | | | | | | | | This patch adds two exported functions. One allows to mark option instance as changed and the second processes change check and does transfer of changed options to userspace. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: push array_index and port into separate structureJiri Pirko2012-06-191-2/+7
| | | | | | | | | Introduce struct team_option_inst_info and push option instance info there. It can be then easily passed to gsetter context and used for feature async option changes. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: introduce array optionsJiri Pirko2012-06-191-0/+3
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add mode priv to portJiri Pirko2012-06-191-0/+2
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: make team_mode struct constJiri Pirko2012-06-191-3/+2
| | | | | Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: allow to enable/disable portsJiri Pirko2012-04-211-7/+8
| | | | | | | | | | | | This patch changes content of hashlist (used to get port struct by computed index (0...en_port_count-1)). Now the hash list contains only enabled ports so userspace will be able to say what ports can be used for tx/rx. This becomes handy when userspace will need to disable ports which does not belong to active aggregator. By default, newly added port is enabled. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add user_linkup and user_linkup_enabled per-port optionJiri Pirko2012-04-111-8/+18
| | | | | | | | Allows userspace to setup linkup for ports. Default is to take linkup directly from ethtool state. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add bool option typeJiri Pirko2012-04-111-0/+2
| | | | | | | | Add another (hopefully last) option type. Use NLA_FLAG to implement that. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add support for per-port optionsJiri Pirko2012-04-111-13/+17
| | | | | | | | | This patch allows to create per-port options. That becomes handy for all sorts of stuff, for example for userspace driven link-state, 802.3ad implementation and so on. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: add binary option typeJiri Pirko2012-04-041-0/+8
| | | | | | | | For transfering generic binary data (e.g. BPF code), introduce new binary option type. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: send only changed options/ports via netlinkJiri Pirko2012-01-241-0/+10
| | | | | | | | | This patch changes event message behaviour to send only updated records instead of whole list. This fixes bug on which userspace receives non-actual data in case multiple events occur in row. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: replicate options on registerJiri Pirko2011-11-161-4/+4
| | | | | | | | | | Since multiple team instances are putting defined options into their option list, during register each option must be cloned before added into list. This resolves uncool memory corruptions when using multiple teams. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* team: convert overall spinlock to mutexJiri Pirko2011-11-161-1/+1
| | | | | | | | No need to have spinlock for this purpose. So convert this to mutex and avoid current schedule while atomic problems in netlink code. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: introduce ethernet teaming deviceJiri Pirko2011-11-131-0/+242
This patch introduces new network device called team. It supposes to be very fast, simple, userspace-driven alternative to existing bonding driver. Userspace library called libteam with couple of demo apps is available here: https://github.com/jpirko/libteam Note it's still in its dipers atm. team<->libteam use generic netlink for communication. That and rtnl suppose to be the only way to configure team device, no sysfs etc. Python binding of libteam was recently introduced. Daemon providing arpmon/miimon active-backup functionality will be introduced shortly. All what's necessary is already implemented in kernel team driver. v7->v8: - check ndo_ndo_vlan_rx_[add/kill]_vid functions before calling them. - use dev_kfree_skb_any() instead of dev_kfree_skb() v6->v7: - transmit and receive functions are not checked in hot paths. That also resolves memory leak on transmit when no port is present v5->v6: - changed couple of _rcu calls to non _rcu ones in non-readers v4->v5: - team_change_mtu() uses team->lock while travesing though port list - mac address changes are moved completely to jurisdiction of userspace daemon. This way the daemon can do FOM1, FOM2 and possibly other weird things with mac addresses. Only round-robin mode sets up all ports to bond's address then enslaved. - Extended Kconfig text v3->v4: - remove redundant synchronize_rcu from __team_change_mode() - revert "set and clear of mode_ops happens per pointer, not per byte" - extend comment of function __team_change_mode() v2->v3: - team_change_mtu() uses rcu version of list traversal to unwind - set and clear of mode_ops happens per pointer, not per byte - port hashlist changed to be embedded into team structure - error branch in team_port_enter() does cleanup now - fixed rtln->rtnl v1->v2: - modes are made as modules. Makes team more modular and extendable. - several commenters' nitpicks found on v1 were fixed - several other bugs were fixed. - note I ignored Eric's comment about roundrobin port selector as Eric's way may be easily implemented as another mode (mode "random") in future. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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