[riot-notifications] [RIOT-OS/RIOT] pkg/nimble/netif: fix and optimize NimBLE buffer sizes (#16503)

Hauke Petersen notifications at github.com
Thu Jun 10 09:44:53 CEST 2021

@haukepetersen commented on this pull request.

-  # NimBLEs internal buffer need to hold one IPv6 MTU per connection
-  # for the internal MTU of 256 byte, we need 10 mbufs per connection...
+  # the maximum fragment size that we can receive. For maximum efficiency this
+  # should be equal to the maximum configured link layer packet size.
+  # WARNING: this value MUST never be larger than MYNEWT_VAL_BLE_LL_MAX_PKT_SIZE
+  # in order to fit a 251 byte COC data segment into a single mbuf buffer, the
+  # used block size must be at least 297 byte (251 data + 48 overhead)

Yes, we could do that. Will fix.

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