em driver: netif hangs the system if interface is cabled and configured but there is no link

2014-06-12 Thread John Jasem
I'm configuring a system that's destined to be a multi-homed server, using Intel dual port 1GbE cards that rely on the em driver. em0 has link, and only needed configuration. In an attempt to be ahead of the game, I pre-configured em2, plugged in my side of the cable to be ready when the other si

Re: em driver: netif hangs the system if interface is cabled and configured but there is no link

2014-06-12 Thread John Jasem
On 06/12/2014 01:02 PM, Andreas Nilsson wrote: > If it is a dual port card, shouldn't it be em0 and em1 ? Yes. I do have two dual port cards however. -- John Jasen (jja...@gmail.com) ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/

tuning routing using cxgbe and T580-CR cards?

2014-07-11 Thread John Jasem
In testing two Chelsio T580-CR dual port cards with FreeBSD 10-STABLE, I've been able to use a collection of clients to generate approximately 1.5-1.6 million TCP packets per second sustained, and routinely hit 10GB/s, both measured by netstat -d -b -w1 -W (I usually use -h for the quick read, acce

re: Network Intel X520-SR2 stopping

2014-07-11 Thread John Jasem
Marcelo; I recently had a case where an Intel card was flapping, but using LR transceivers. Turns out, the cable ends needed to be re-polished, as not enough light was making it through to register transmit power. You and the networking people may want to spend a few moments exploring that path.

Re: tuning routing using cxgbe and T580-CR cards?

2014-07-11 Thread John Jasem
On 07/11/2014 03:32 PM, Navdeep Parhar wrote: > On 07/11/14 10:28, John Jasem wrote: >> In testing two Chelsio T580-CR dual port cards with FreeBSD 10-STABLE, >> I've been able to use a collection of clients to generate approximately >> 1.5-1.6 million TCP packets

Re: tuning routing using cxgbe and T580-CR cards?

2014-07-14 Thread John Jasem
15G 0 0 0 0 0 6 0 0 72673 125 159449 0 92 8 0 0 0550M15G80 0 0 0 0 6 0 0 75630 175 164614 0 91 9 On 07/11/2014 03:32 PM, Navdeep Parhar wrote: > On 07/11/14 10:28, John Jasem wrote: >> In testing two Chelsio T580-CR dual port c

Re: tuning routing using cxgbe and T580-CR cards?

2014-07-14 Thread John Jasem
Dropping lro on the interfaces decreased interrupt usage on the CPUs, as measured by top -CHIPSu, by 15-20%, at least from eyeballing it. It did not otherwise have an effect on packet rates. Thanks! On 07/12/2014 08:33 AM, Bjoern A. Zeeb wrote: > On 12 Jul 2014, at 12:17 , Olivier Cochard-Labb