[Cerowrt-devel] Fwd: [PATCH] ag71xx: Added support for baby-jumbo packets.

Robert Bradley robert.bradley1 at gmail.com
Sat Jun 23 17:47:38 EDT 2012

On 23/06/12 20:29, dpreed at reed.com wrote:
> I find it curious that packet aggregation is done in 802.11n standards, but that the packets are limited to 1540.   I bet that limit may not be there in all Atheros NICs, and maybe not in this one.  Will investigate now that I'm curious.

The patch only affects the wired Ethernet driver, so 802.11n packet 
aggregation does not apply here.  TSO and friends could apply in theory, 
but either is unsupported or disabled in this case.  The wireless side 
is handled by the ath9k driver instead, where I know nothing about the 
upper limits on MTU.  Depending on the cards used by the clients, the 
maximum MTU may be limited to 1500 even if the ath9k driver can cope.
Robert Bradley

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