Pyun YongHyeon [EMAIL PROTECTED] wrote:
OpenBSD's re(4) driver is ported from FreeBSD. Recently, Brad Smith
has been merging the tx/rx checksum offload support for the newer
chips (RTL8111C etc.) into the OpenBSD driver and I have done some
testing for him. Looking at the counters,
Christian Weisgerber [EMAIL PROTECTED] wrote:
OpenBSD's re(4) driver is ported from FreeBSD. [...]
* If VLAN tagging is enabled, no rx checksumming is registered at
all.
For the record, this is in fact due to a difference in the OpenBSD
driver, i.e., it does not apply to FreeBSD. OpenBSD
On Tue, Aug 12, 2008 at 03:33:14PM +, Christian Weisgerber wrote:
Pyun YongHyeon [EMAIL PROTECTED] wrote:
OpenBSD's re(4) driver is ported from FreeBSD. Recently, Brad Smith
has been merging the tx/rx checksum offload support for the newer
chips (RTL8111C etc.) into the
Pyun YongHyeon [EMAIL PROTECTED] wrote:
I don't think it indicates whether checksum offloading actually
works as OpenBSD blindly set a flag, which was derived from
hardware, to indicate hardware performed the checksum computation.
Yes. It counts the instances where the network stack assumes
Are there any NIC hardware counters that FreeBSD could be taking
advantage of or displaying?
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On Mon, Aug 11, 2008 at 12:22:33PM +, Christian Weisgerber wrote:
Pyun YongHyeon [EMAIL PROTECTED] wrote:
I don't think it indicates whether checksum offloading actually
works as OpenBSD blindly set a flag, which was derived from
hardware, to indicate hardware performed the
On Tue, Aug 12, 2008 at 08:32:52AM +1000, Andrew Snow wrote:
Are there any NIC hardware counters that FreeBSD could be taking
advantage of or displaying?
It depends on device driver. Some drivers access hardware counters
maintained by MAC and can display these counters with sysctl(8).
On Sat, Aug 09, 2008 at 08:12:42PM +, Christian Weisgerber wrote:
OpenBSD keeps count of the packets that have undergone IPv4 header/
TCP/UDP checksumming in hardware. These statics are available with
netstat -s, e.g.:
ip:
...
492152 input datagrams
OpenBSD keeps count of the packets that have undergone IPv4 header/
TCP/UDP checksumming in hardware. These statics are available with
netstat -s, e.g.:
ip:
...
492152 input datagrams checksum-processed by hardware
911338 output datagrams checksum-processed by hardware
