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authorAlan Ott <alan@signal11.us>2013-04-03 04:00:57 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-07 17:06:43 -0400
commite937f583ec3a40cccd480b40d8c6d54751781587 (patch)
tree4885a511f62ca7bcf7d41f51acccd633f53587ad /net/mac802154
parentb5992fe962b0c91880229ec31166517e4db2977b (diff)
mac802154: Increase tx_buffer_len
Increase the buffer length from 10 to 300 packets. Consider that traffic on mac802154 devices will often be 6LoWPAN, and a full-length (1280 octet) IPv6 packet will fragment into 15 6LoWPAN fragments (because the MTU of IEEE 802.15.4 is 127). A 300-packet queue is really 20 full-length IPv6 packets. With a queue length of 10, an entire IPv6 packet was unable to get queued at one time, causing fragments to be dropped, and making reassembly impossible. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac802154')
-rw-r--r--net/mac802154/wpan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index 7d3f6594ed4f..2ca2f4dceab7 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -360,7 +360,7 @@ void mac802154_wpan_setup(struct net_device *dev)
dev->header_ops = &mac802154_header_ops;
dev->needed_tailroom = 2; /* FCS */
dev->mtu = IEEE802154_MTU;
- dev->tx_queue_len = 10;
+ dev->tx_queue_len = 300;
dev->type = ARPHRD_IEEE802154;
dev->flags = IFF_NOARP | IFF_BROADCAST;
dev->watchdog_timeo = 0;

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