Re: IFCAP_LRO on FreeBSD 7
- From: "Jack Vogel" <jfvogel@xxxxxxxxx>
- Date: Thu, 27 Nov 2008 11:43:32 -0800
On Thu, Nov 27, 2008 at 4:51 AM, Robert Watson <rwatson@xxxxxxxxxxx> wrote:
On Thu, 27 Nov 2008, Yony Yossef wrote:
Is there a native interface for LRO in FreeBSD 7? I can't find any use for
IFCAP_LRO but notifying the driver if to use or not to use this offload.
If not, is it planned for FreeBSD 8?
IFCAP_LRO is a capability/policy flag allowing drivers to declare support
for LRO, and for administrators to enable/disable it if present. Drivers
can either provide their own implementation (mxge, nxge) or use the system
implementation (cxgb, igb). I'm slightly surprised to see that igb
references tcp_lro_init() but not IFCAP_LRO -- perhaps lro isn't yet fully
hooked up, or perhaps there's a bug? I believe all of the above applies to
7.1 but not 7.0, except possibly mxge supporting LRO in 7.0.
Been so busy internally that I did not even realize that this
capability had been created, I need to change both igb and
ixgbe to use it.
Thanks for pointing this out,
Jack
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- References:
- IFCAP_LRO on FreeBSD 7
- From: Yony Yossef
- Re: IFCAP_LRO on FreeBSD 7
- From: Robert Watson
- IFCAP_LRO on FreeBSD 7
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