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22 Commits

Author SHA1 Message Date
Andrew Thompson
80ddfb40e4 Have the lagg interface generate link up/down events, the interface is marked 
as up if at least one of its ports also has a link up. This fixes using
carp+lagg together and any other system that relies on linkstate events.

PR:		kern/113956
MFC after:	3 days
 2007-11-25 06:30:46 +00:00
Andrew Thompson
544f714198 Use ETHER_BPF_MTAP so that the vlan tags are visible to bpf(4) when stacked 
under a vlan.

MFC after:	3 days
 2007-10-20 02:43:23 +00:00
Andrew Thompson
960dab09a2 Fix two panics in lagg. 
1. The locking was changed to shared but roundrobin mode still updated a
   pointer in the softc with the next tx interface to use. This will panic
   under high load. Change this to an atomically incremented sequence number in
   order to choose the tx port in round robin.

2. IFQ_HANDOFF will free the mbuf if the queue is full, this will then be freed
   again by lagg_start() and panic.  Reorganised the error handling and freeing
   to fix this.

MFC after:		3 days
 2007-10-12 03:03:16 +00:00
Andrew Thompson
207455510b Show the ACTIVE flag in ifconfig for the single interface that is actaully 
active in failover mode rather than all interfaces with a link. This makes it
clear if the master interface is in use or one of the backup links.

Found by:	Writing the Handbook section
Approved by:	re (kensmith)
 2007-08-30 19:12:10 +00:00
Andrew Thompson
de75afe64f - Propagate the largest set of interface capabilities supported by all lagg 
ports to the lagg interface.
- Use the MTU from the first interface as the lagg MTU, all extra interfaces
  must be the same.

This fixes using a lagg interface for a vlan or enabling jumbo frames, etc.

Approved by:	re (kensmith)
MFC After:	3 days
 2007-07-30 20:17:22 +00:00
Andrew Thompson
82056f42cf Avoid holding the softc lock when using copyout(). 
Reported by:	dfr
Approved by:	re (rwatson)
 2007-07-26 20:30:18 +00:00
Andrew Thompson
b3d37ca5f8 Allow the LACP state to be queried from userland which at the moment is the 
actor and partner peer info. Print out the active aggregator and per port data
in verbose mode from ifconfig.

Approved by:	re (mux)
 2007-07-05 09:18:57 +00:00
Andrew Thompson
ec32b37ecd non-functional cleanup 
- remove dead code
- use consistent variable names
- gc unused defines
- whitespace cleanup
 2007-06-12 07:29:11 +00:00
Andrew Thompson
6469e186ad - packets on the input interface were counted twice 
- Use IFQ_HANDOFF instead of rolling our own
 2007-05-20 03:21:59 +00:00
Andrew Thompson
9bbba41e79 Fix a mbuf leak where sc_start fails or the protocol is none. 2007-05-19 01:40:18 +00:00
Andrew Thompson
3362a47464 Fix locking assert where we should hold the reader lock. 2007-05-18 23:38:35 +00:00
Andrew Thompson
e2a77bb8b7 Fix unused variable error with !INET6 
Reported by:	Artem Naluzhny, Frank Terhaar-Yonkers
 2007-05-15 18:30:48 +00:00
Andrew Thompson
7a04b0f625 Feed ipv6 flowlabel to hash calculation. 
Obtained from:	NetBSD
 2007-05-15 07:59:49 +00:00
Andrew Thompson
3bf517e389 Change from a mutex to a read/write lock. This allows the tx port to be 
selected simultaneously by multiple senders and transmit/receive is not
serialised between aggregated interfaces.
 2007-05-15 07:41:46 +00:00
Andrew Thompson
a5715cb26e - Correctly check if lp_ioctl is null 
- Remove lagg_ether_purgemulti as its no longer needed
 - Mark the interface as up if any ports are active rather than just the primary
 2007-05-07 09:53:02 +00:00
Andrew Thompson
efcd0965ad The purgemulti call is not needed since all the ports have already been detached. 2007-05-07 00:52:26 +00:00
Andrew Thompson
cdc6f95f84 Call if_setlladdr() on the aggregation port from a taskqueue so the softc lock 
is not held. The short delay between aggregating the port and setting the MAC
address is fine.
 2007-05-07 00:35:15 +00:00
Andrew Thompson
108fe96a44 Avoid touching various unsafe parts if the interface is disappearing. 2007-05-07 00:28:55 +00:00
Andrew Thompson
d74fd34568 Change from using if_delmulti() to if_delmulti_ifma() as it simplifies the code 
and is safe to use if the ifp has disappeared.

Suggested by:	bms
 2007-05-07 00:18:56 +00:00
Andrew Thompson
e3163ef60a - Add a disabled state for ports that can not be aggregated 
- Refine check for lacp links, set to disabled if not suitable
 2007-05-03 08:56:20 +00:00
Andrew Thompson
139722d4e4 Set the master flag on the right variable. 2007-05-02 08:58:28 +00:00
Andrew Thompson
18242d3b09 Rename the trunk(4) driver to lagg(4) as it is too similar to vlan trunking. 
The name trunk is misused as the networking term trunk means carrying multiple
VLANs over a single connection. The IEEE standard for link aggregation (802.3
section 3) does not talk about 'trunk' at all while it is used throughout IEEE
802.1Q in describing vlans.

The lagg(4) driver provides link aggregation, failover and fault tolerance.

Discussed on:	current@
 2007-04-17 00:35:11 +00:00