Benjamin Valentin
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4065da8838
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gnrc/netif: 6lo: use 16 bit for max_frag_size
Using 8 bit for `max_frag_size` limits that value to 255.
802.15.4g specifies a PDU of 2047 bytes which exceeds that limit.
Using a 16 bit value here allows to use the full L2 PDU.
Before:
12:02:16,300 # ping6 fe80::2068:3123:59f5:d238%8 -s 400
12:02:16,302 # sending 244 bytes
12:02:16,387 # sending 218 bytes
12:02:16,624 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=0 ttl=64 rssi=-49 dBm time=316.307 ms
12:02:17,302 # sending 244 bytes
12:02:17,387 # sending 218 bytes
12:02:17,624 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=1 ttl=64 rssi=-49 dBm time=316.307 ms
12:02:18,302 # sending 244 bytes
12:02:18,387 # sending 218 bytes
12:02:18,624 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=2 ttl=64 rssi=-50 dBm time=316.306 ms
12:02:18,625 #
12:02:18,629 # --- fe80::2068:3123:59f5:d238 PING statistics ---
With this patch:
12:09:44,276 # ping6 fe80::2068:3123:59f5:d238%8 -s 400
12:09:44,278 # sending 432 bytes
12:09:44,574 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=0 ttl=64 rssi=-52 dBm time=289.888 ms
12:09:45,279 # sending 432 bytes
12:09:45,574 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=1 ttl=64 rssi=-52 dBm time=289.885 ms
12:09:46,069 # sending 43 bytes
12:09:46,279 # sending 432 bytes
12:09:46,499 # sending 43 bytes
12:09:46,574 # 408 bytes from fe80::2068:3123:59f5:d238%8: icmp_seq=2 ttl=64 rssi=-47 dBm time=289.886 ms
12:09:46,574 #
12:09:46,578 # --- fe80::2068:3123:59f5:d238 PING statistics ---
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2020-04-29 12:49:36 +02:00 |
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