3d249d4ca7
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>
43 lines
1.2 KiB
Text
43 lines
1.2 KiB
Text
menuconfig NET_TEAM
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tristate "Ethernet team driver support (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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---help---
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This allows one to create virtual interfaces that teams together
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multiple ethernet devices.
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Team devices can be added using the "ip" command from the
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iproute2 package:
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"ip link add link [ address MAC ] [ NAME ] type team"
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To compile this driver as a module, choose M here: the module
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will be called team.
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if NET_TEAM
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config NET_TEAM_MODE_ROUNDROBIN
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tristate "Round-robin mode support"
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depends on NET_TEAM
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---help---
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Basic mode where port used for transmitting packets is selected in
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round-robin fashion using packet counter.
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All added ports are setup to have bond's mac address.
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To compile this team mode as a module, choose M here: the module
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will be called team_mode_roundrobin.
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config NET_TEAM_MODE_ACTIVEBACKUP
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tristate "Active-backup mode support"
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depends on NET_TEAM
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---help---
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Only one port is active at a time and the rest of ports are used
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for backup.
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Mac addresses of ports are not modified. Userspace is responsible
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to do so.
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To compile this team mode as a module, choose M here: the module
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will be called team_mode_activebackup.
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endif # NET_TEAM
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