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Diffstat (limited to 'Documentation/networking/6lowpan.txt')
| -rw-r--r-- | Documentation/networking/6lowpan.txt | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/Documentation/networking/6lowpan.txt b/Documentation/networking/6lowpan.txt deleted file mode 100644 index 2e5a939d7e6f..000000000000 --- a/Documentation/networking/6lowpan.txt +++ /dev/null @@ -1,50 +0,0 @@ - -Netdev private dataroom for 6lowpan interfaces: - -All 6lowpan able net devices, means all interfaces with ARPHRD_6LOWPAN, -must have "struct lowpan_priv" placed at beginning of netdev_priv. - -The priv_size of each interface should be calculate by: - - dev->priv_size = LOWPAN_PRIV_SIZE(LL_6LOWPAN_PRIV_DATA); - -Where LL_PRIV_6LOWPAN_DATA is sizeof linklayer 6lowpan private data struct. -To access the LL_PRIV_6LOWPAN_DATA structure you can cast: - - lowpan_priv(dev)-priv; - -to your LL_6LOWPAN_PRIV_DATA structure. - -Before registering the lowpan netdev interface you must run: - - lowpan_netdev_setup(dev, LOWPAN_LLTYPE_FOOBAR); - -wheres LOWPAN_LLTYPE_FOOBAR is a define for your 6LoWPAN linklayer type of -enum lowpan_lltypes. - -Example to evaluate the private usually you can do: - -static inline struct lowpan_priv_foobar * -lowpan_foobar_priv(struct net_device *dev) -{ - return (struct lowpan_priv_foobar *)lowpan_priv(dev)->priv; -} - -switch (dev->type) { -case ARPHRD_6LOWPAN: - lowpan_priv = lowpan_priv(dev); - /* do great stuff which is ARPHRD_6LOWPAN related */ - switch (lowpan_priv->lltype) { - case LOWPAN_LLTYPE_FOOBAR: - /* do 802.15.4 6LoWPAN handling here */ - lowpan_foobar_priv(dev)->bar = foo; - break; - ... - } - break; -... -} - -In case of generic 6lowpan branch ("net/6lowpan") you can remove the check -on ARPHRD_6LOWPAN, because you can be sure that these function are called -by ARPHRD_6LOWPAN interfaces. |