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2016-02-236lowpan: iphc: add support for stateful compressionAlexander Aring1-1/+38
This patch introduce support for IPHC stateful address compression. It will offer the context table via one debugfs entry. This debugfs has and directory for each cid entry for the context table. Inside each cid directory there exists the following files: - "active": If the entry is added or deleted. The context table is original a list implementation, this flag will indicate if the context is part of list or not. - "prefix": The ipv6 prefix. - "prefix_length": The prefix length for the prefix. - "compression": The compression flag according RFC6775. This part should be moved into sysfs after some testing time. Also the debugfs entry contains a "show" file which is a pretty-printout for the current context table information. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-206lowpan: fix debugfs interface entry nameAlexander Aring1-3/+3
This patches moves the debugfs interface related register after netdevice register. The function lowpan_dev_debugfs_init will use "dev->name" which can be before register_netdevice a format string. The function register_netdevice will evaluate the format string if necessary and replace "dev->name" to the real interface name. Reported-by: Lukasz Duda <lukasz.duda@nordicsemi.no> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Acked-by: Lukasz Duda <lukasz.duda@nordicsemi.no> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-106lowpan: add debugfs supportAlexander Aring1-1/+27
This patch will introduce a 6lowpan entry into the debugfs if enabled. Inside this 6lowpan directory we create a subdirectories of all 6lowpan interfaces to offer a per interface debugfs support. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-106lowpan: add lowpan dev register helpersAlexander Aring1-2/+31
This patch introduces register and unregister functionality for lowpan interfaces. While register a lowpan interface there are several things which need to be initialize by the 6lowpan subsystem. Upcoming functionality need to register/unregister per interface components e.g. debugfs entry. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-10-086lowpan: move shared settings to lowpan_netdev_setupAlexander Aring1-0/+5
This patch moves values for all lowpan interface to the shared implementation of 6lowpan. This patch also quietly fixes the forgotten IFF_NO_QUEUE flag for the bluetooth 6LoWPAN interface. An identically commit is 4afbc0d ("net: 6lowpan: convert to using IFF_NO_QUEUE") which wasn't changed for bluetooth 6lowpan. All 6lowpan interfaces should be virtual with IFF_NO_QUEUE, using EUI64 address length, the mtu size is 1280 (IPV6_MIN_MTU) and the netdev type is ARPHRD_6LOWPAN. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-08-116lowpan: move module_init into core functionalityAlexander Aring1-0/+20
This patch moves module_init of 6lowpan module into core functionality of 6lowpan module. To load the ipv6 module at probing of the 6lowpan module should be core functionality. Loading next header compression modules is iphc specific. Nevertheless we only support IPHC for the generic 6LoWPAN branch right now so we can put it into the core functionality. If possible new compression formats are introduced nhc should load only when iphc is build. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-08-116lowpan: add generic 6lowpan netdev private dataAlexander Aring1-0/+20
This patch introduced the 6lowpan netdev private data struct. We name it lowpan_priv and it's placed at the beginning of netdev private data. All lowpan interfaces should allocate this room at first of netdev private data. 6LoWPAN LL private data can be allocate by additional netdev private data, e.g. dev->priv_size should be "sizeof(struct lowpan_priv) + sizeof(LL_LOWPAN_PRIVATE_DATA)". Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>