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path: root/drivers/net/bonding/bond_debugfs.c
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* net: Move bonding headers under include/netDavid S. Miller2014-11-101-2/+2
| | | | | | | This ways drivers like cxgb4 don't need to do ugly relative includes. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: trivial: style and comment fixesNikolay Aleksandrov2014-09-151-3/+1
| | | | | | | | | | | | | First adjust a couple of locking comments that were left inaccurate, then adjust comments to use the netdev styling and remove extra new lines where necessary and add a couple of new lines between declarations and code. These are all trivial styling changes, no functional change. Also removed a couple of outdated or obvious comments. This patch is by no means a complete fix of all netdev style violations but it gets the bonding closer. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: alb: convert to bond->mode_lockNikolay Aleksandrov2014-09-131-2/+2
| | | | | | | | | | | | The ALB/TLB specific spinlocks are no longer necessary as we now have bond->mode_lock for this purpose, so convert them and remove them from struct alb_bond_info. Also remove the unneeded lock/unlock functions and use spin_lock/unlock directly. Suggested-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: convert bond_debugfs.c to use netdev_printk instead of pr_Veaceslav Falico2014-07-151-4/+2
| | | | | | | | | One occurance left intact as it's unrelated to net_device. CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: create a macro for bond mode and use itVeaceslav Falico2014-05-161-1/+1
| | | | | | | CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Convert pr_warning to pr_warn, neateningJoe Perches2014-02-171-6/+4
| | | | | | | | | Use more current logging style. Coalesce formats, realign arguments, drop unnecessary periods. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: delete migrated IP addresses from the rlb hash tableJiri Bohac2012-11-301-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bonding in balance-alb mode records information from ARP packets passing through the bond in a hash table (rx_hashtbl). At certain situations (e.g. link change of a slave), rlb_update_rx_clients() will send out ARP packets to update ARP caches of other hosts on the network to achieve RX load balancing. The problem is that once an IP address is recorded in the hash table, it stays there indefinitely. If this IP address is migrated to a different host in the network, bonding still sends out ARP packets that poison other systems' ARP caches with invalid information. This patch solves this by looking at all incoming ARP packets, and checking if the source IP address is one of the source addresses stored in the rx_hashtbl. If it is, but the MAC addresses differ, the corresponding hash table entries are removed. Thus, when an IP address is migrated, the first ARP broadcast by its new owner will purge the offending entries of rx_hashtbl. The hash table is hashed by ip_dst. To be able to do the above check efficiently (not walking the whole hash table), we need a reverse mapping (by ip_src). I added three new members in struct rlb_client_info: rx_hashtbl[x].src_first will point to the start of a list of entries for which hash(ip_src) == x. The list is linked with src_next and src_prev. When an incoming ARP packet arrives at rlb_arp_recv() rlb_purge_src_ip() can quickly walk only the entries on the corresponding lists, i.e. the entries that are likely to contain the offending IP address. To avoid confusion, I renamed these existing fields of struct rlb_client_info: next -> used_next prev -> used_prev rx_hashtbl_head -> rx_hashtbl_used_head (The current linked list is _not_ a list of hash table entries with colliding ip_dst. It's a list of entries that are being used; its purpose is to avoid walking the whole hash table when looking for used entries.) Signed-off-by: Jiri Bohac <jbohac@suse.cz> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: debugfs and network namespaces are incompatibleEric W. Biederman2012-07-091-1/+1
| | | | | | | | | | | | | The bonding debugfs support has been broken in the presence of network namespaces since it has been added. The debugfs support does not handle multiple bonding devices with the same name in different network namespaces. I haven't had any bug reports, and I'm not interested in getting any. Disable the debugfs support when network namespaces are enabled. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: add the debugfs interface to see RLB hash tableTaku Izumi2010-12-161-0/+50
| | | | | | | | | | | | | | | | | This patch provices the debugfs interface to see RLB hash table like the following: # cat /sys/kernel/debug/bonding/bond0/rlb_hash_table SourceIP DestinationIP Destination MAC DEV 10.124.196.205 10.124.196.205 ff:ff:ff:ff:ff:ff eth4 10.124.196.205 10.124.196.81 00:19:99:XX:XX:XX eth3 10.124.196.205 10.124.196.1 00:21:d8:XX:XX:XX eth0 This is helpful to check if the receive load balancing works as expected. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: add the debugfs facility to the bonding driverTaku Izumi2010-12-101-0/+96
This patch provides the debugfs facility to the bonding driver. The "bonding" directory is created in the debugfs root and directories of each bonding interface (like bond0, bond1...) are created in that. # mount -t debugfs none /sys/kernel/debug # ls /sys/kernel/debug/bonding bond0 bond1 Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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