Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-12-10 Thread Stuart Henderson
On 2013-12-09, Patrick Lamaiziere patf...@davenulle.org wrote: Le Mon, 09 Dec 2013 12:31:04 +, Stuart Henderson s...@spacehopper.org a écrit : Hello, I don't think msi can be re-enabled for this part in OpenBSD, the reason it's disabled is that there is a bug in the 82571/2 chips

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-12-09 Thread Patrick Lamaiziere
Le Tue, 1 Oct 2013 08:37:09 + (UTC), Stuart Henderson s...@spacehopper.org a écrit : Hello, On 2013-10-01, Patrick Lamaiziere patf...@davenulle.org wrote: Hello, With OpenBSD 5.3, our firewall does not handle our network load well. We loose around 5% of packets and netstat shows a

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-12-09 Thread Stuart Henderson
I don't think msi can be re-enabled for this part in OpenBSD, the reason it's disabled is that there is a bug in the 82571/2 chips (errata 63 in http://www.intel.co.uk/content/dam/www/public/us/en/documents/specification-updates/82571eb-82572ei-gbe-controller-spec-update.pdf) and the symptom in

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-12-09 Thread Patrick Lamaiziere
Le Mon, 09 Dec 2013 12:31:04 +, Stuart Henderson s...@spacehopper.org a écrit : Hello, I don't think msi can be re-enabled for this part in OpenBSD, the reason it's disabled is that there is a bug in the 82571/2 chips (errata 63 in

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-12-09 Thread Theo de Raadt
I don't think msi can be re-enabled for this part in OpenBSD, the reason it's disabled is that there is a bug in the 82571/2 chips (errata 63 in http://www.intel.co.uk/content/dam/www/public/us/en/documents/specification-updates/82571eb-82572ei-gbe-controller-spec-update.pdf) and the

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-10-07 Thread Loïc BLOT
Hello. Stuart i have 8 OpenBSD routers with em(4) and OpenBSD 5.2 (MSI enabled). It seems some of our SMTP(s) connections (with attachments) are unstable but it's very very random (~1/500). Other protocols are more stable but a little slower due to errors. Here are my stats on Intel i350 servers

(5.3) load problem on em(4) MSI / interrupt ?

2013-10-01 Thread Patrick Lamaiziere
Hello, With OpenBSD 5.3, our firewall does not handle our network load well. We loose around 5% of packets and netstat shows a lot of Ierr. That worked much better with 5.1. There was a change to not enable MSI on 82572 chipset on our Intel card ( Intel PRO/1000 QP (82571EB) rev 0x06) in 5.2 :

Re: (5.3) load problem on em(4) MSI / interrupt ?

2013-10-01 Thread Stuart Henderson
On 2013-10-01, Patrick Lamaiziere patf...@davenulle.org wrote: Hello, With OpenBSD 5.3, our firewall does not handle our network load well. We loose around 5% of packets and netstat shows a lot of Ierr. That worked much better with 5.1. There was a change to not enable MSI on 82572 chipset