Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
batman-adv: Add support for jumbo frames
Since batman-adv is not actually depending on hardware capabilities, it has
no limit on the MTU. Only the lower hard interfaces can limit it. In case
these have an high enough MTU or fragmentation is enabled, a higher MTU
than 1500 can be enabled.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
authored by
Sven Eckelmann
and committed by
Simon Wunderlich
1666951c
00b35530
+5
-4
+1
-3
net/batman-adv/hard-interface.c
+1
-3
net/batman-adv/hard-interface.c
···
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/* the real soft-interface MTU is computed by removing the payload
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* overhead from the maximum amount of bytes that was just computed.
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-
*
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* However batman-adv does not support MTUs bigger than ETH_DATA_LEN
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*/
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-
return min_t(int, min_mtu - batadv_max_header_len(), ETH_DATA_LEN);
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+
return min_t(int, min_mtu - batadv_max_header_len(), BATADV_MAX_MTU);
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}
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/**
+2
net/batman-adv/main.h
+2
net/batman-adv/main.h
+2
-1
net/batman-adv/soft-interface.c
+2
-1
net/batman-adv/soft-interface.c
···
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atomic_set(&bat_priv->log_level, 0);
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#endif
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atomic_set(&bat_priv->fragmentation, 1);
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-
atomic_set(&bat_priv->packet_size_max, ETH_DATA_LEN);
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+
atomic_set(&bat_priv->packet_size_max, BATADV_MAX_MTU);
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atomic_set(&bat_priv->bcast_queue_left, BATADV_BCAST_QUEUE_LEN);
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atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
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···
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* have not been initialized yet
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*/
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dev->mtu = ETH_DATA_LEN;
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+
dev->max_mtu = BATADV_MAX_MTU;
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/* generate random address */
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eth_hw_addr_random(dev);