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Date: Tue, 2 Apr 2013 14:47:59 -0400 From: Alan Ott <alan@...nal11.us> To: Alexander Smirnov <alex.bluesman.smirnov@...il.com>, Dmitry Eremin-Solenikov <dbaryshkov@...il.com>, "David S. Miller" <davem@...emloft.net> Cc: linux-zigbee-devel@...ts.sourceforge.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Alan Ott <alan@...nal11.us> Subject: [PATCH 4/6] 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@...nal11.us> --- net/mac802154/wpan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c index 7d3f659..2ca2f4d 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; -- 1.7.11.2 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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