On Fri, May 14, 2010 at 1:01 PM, Jack Vogel wrote:
>
>
> On Fri, May 14, 2010 at 8:18 AM, Alexander Sack wrote:
>>
>> On Fri, May 14, 2010 at 10:07 AM, Andrew Gallatin
>> wrote:
>> > Alexander Sack wrote:
>> > <...>
>> >>> Using this driver/firmware combo, we can receive minimal packets at
>> >>
Neterion/Exar x3100 is one of generic 10GbE NICs that supports
timestamping in hardware, along with some other packet
capturing/monitoring featiures; here is a relevant paragraph from
programming manual:
"Receive Frame Timestamp Feature
The x3100 has the ability to label each incoming frame with a
On Fri, May 14, 2010 at 11:41 AM, Andrew Gallatin wrote:
> Alexander Sack wrote:
>> On Fri, May 14, 2010 at 10:07 AM, Andrew Gallatin
>> wrote:
>>> Alexander Sack wrote:
>>> <...>
> Using this driver/firmware combo, we can receive minimal packets at
> line rate (14.8Mpps) to userspace. Y
On Fri, May 14, 2010 at 10:07 AM, Andrew Gallatin wrote:
> Alexander Sack wrote:
> <...>
>>> Using this driver/firmware combo, we can receive minimal packets at
>>> line rate (14.8Mpps) to userspace. You can even access this using a
>>> libpcap interface. The trick is that the fast paths are OS-
On Fri, May 14, 2010 at 8:18 AM, Alexander Sack wrote:
> On Fri, May 14, 2010 at 10:07 AM, Andrew Gallatin
> wrote:
> > Alexander Sack wrote:
> > <...>
> >>> Using this driver/firmware combo, we can receive minimal packets at
> >>> line rate (14.8Mpps) to userspace. You can even access this usi
On Tue, May 11, 2010 at 9:51 AM, Andrew Gallatin wrote:
> Murat Balaban [mu...@enderunix.org] wrote:
>>
>> Much of the FreeBSD networking stack has been made parallel in order to
>> cope with high packet rates at 10 Gig/sec operation.
>>
>> I've seen good numbers (near 10 Gig) in my tests involvin
Alexander Sack wrote:
To use DCA you need:
- A DCA driver to talk to the IOATDMA/DCA pcie device, and obtain the tag
table
- An interface that a client device (eg, NIC driver) can use to obtain
either the tag table, or at least the correct tag for the CPU
that the interrupt
Alexander Sack wrote:
> On Fri, May 14, 2010 at 10:07 AM, Andrew Gallatin
wrote:
>> Alexander Sack wrote:
>> <...>
Using this driver/firmware combo, we can receive minimal packets at
line rate (14.8Mpps) to userspace. You can even access this using a
libpcap interface. The tric
Alexander Sack wrote:
<...>
>> Using this driver/firmware combo, we can receive minimal packets at
>> line rate (14.8Mpps) to userspace. You can even access this using a
>> libpcap interface. The trick is that the fast paths are OS-bypass,
>> and don't suffer from OS overheads, like lock content
