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RIOT/sys/include/net/gnrc/netif
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Benjamin Valentin 4065da8838 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 ---
2020-04-29 12:49:36 +02:00
..
6lo.h gnrc/netif: 6lo: use 16 bit for max_frag_size 2020-04-29 12:49:36 +02:00
conf.h gnrc/nib: Move GNRC_IPV6_NIB_L2ADDR_MAX_LEN to 'CONFIG_' namespace 2020-03-31 18:07:12 +02:00
dedup.h
ethernet.h gnrc_netif: document new *_create() out parameter as such 2020-03-26 14:37:44 +01:00
flags.h gnrc_netif: add flag to indicate 6Lo capabilities 2019-10-30 17:10:33 +01:00
hdr.h
ieee802154.h gnrc_netif: document new *_create() out parameter as such 2020-03-26 14:37:44 +01:00
internal.h gnrc/nib: Move GNRC_IPV6_NIB_CONF_6LN to 'CONFIG_' namespace 2020-03-31 18:07:04 +02:00
ipv6.h gnrc/nib: Move GNRC_IPV6_NIB_CONF_ARSM to 'CONFIG_' namespace 2020-03-31 18:07:07 +02:00
lorawan_base.h gnrc_netif: document new *_create() out parameter as such 2020-03-26 14:37:44 +01:00
lorawan.h gnrc_netif_lorawan: add headers 2019-11-26 21:52:05 +01:00
mac.h
raw.h gnrc_netif: document new *_create() out parameter as such 2020-03-26 14:37:44 +01:00