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6lowpan: move shared settings to lowpan_netdev_setup

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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>
This commit is contained in:
Alexander Aring 2015-10-02 20:28:04 +02:00 committed by Marcel Holtmann
parent 26d46dffbe
commit 4d6a6aed22
4 changed files with 7 additions and 10 deletions
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2
include/net/6lowpan.h
View File

@ -61,6 +61,8 @@
#define UIP_PROTO_UDP 17 /* ipv6 next header value for UDP */
#define UIP_FRAGH_LEN 8 /* ipv6 fragment header size */
#define EUI64_ADDR_LEN 8
#define LOWPAN_NHC_MAX_ID_LEN 1
/* Max IPHC Header len without IPv6 hdr specific inline data.
* Useful for getting the "extra" bytes we need at worst case compression.

5
net/6lowpan/core.c
View File

@ -17,6 +17,11 @@
void lowpan_netdev_setup(struct net_device *dev, enum lowpan_lltypes lltype)
{
dev->addr_len = EUI64_ADDR_LEN;
dev->type = ARPHRD_6LOWPAN;
dev->mtu = IPV6_MIN_MTU;
dev->priv_flags |= IFF_NO_QUEUE;
lowpan_priv(dev)->lltype = lltype;
}
EXPORT_SYMBOL(lowpan_netdev_setup);

6
net/bluetooth/6lowpan.c
View File

@ -35,7 +35,6 @@ static struct dentry *lowpan_enable_debugfs;
static struct dentry *lowpan_control_debugfs;
#define IFACE_NAME_TEMPLATE "bt%d"
#define EUI64_ADDR_LEN 8
struct skb_cb {
struct in6_addr addr;
@ -674,13 +673,8 @@ static struct header_ops header_ops = {
static void netdev_setup(struct net_device *dev)
{
dev->addr_len = EUI64_ADDR_LEN;
dev->type = ARPHRD_6LOWPAN;
dev->hard_header_len = 0;
dev->needed_tailroom = 0;
dev->mtu = IPV6_MIN_MTU;
dev->tx_queue_len = 0;
dev->flags = IFF_RUNNING | IFF_POINTOPOINT |
IFF_MULTICAST;
dev->watchdog_timeo = 0;

4
net/ieee802154/6lowpan/core.c
View File

@ -101,13 +101,9 @@ static const struct net_device_ops lowpan_netdev_ops = {
static void lowpan_setup(struct net_device *ldev)
{
ldev->addr_len = IEEE802154_ADDR_LEN;
memset(ldev->broadcast, 0xff, IEEE802154_ADDR_LEN);
ldev->type = ARPHRD_6LOWPAN;
/* We need an ipv6hdr as minimum len when calling xmit */
ldev->hard_header_len = sizeof(struct ipv6hdr);
ldev->mtu = IPV6_MIN_MTU;
ldev->priv_flags |= IFF_NO_QUEUE;
ldev->flags = IFF_BROADCAST | IFF_MULTICAST;
ldev->netdev_ops = &lowpan_netdev_ops;