Re: Kernel panic from lagg_ioctl and lagg_port_ioctl

2016-01-13 Thread Lakshmi Narasimhan Sundararajan
Hi Hans, Yes, we understand that piece of code. But Panasas wants this change to MFC to 10.3. This issue is not seen in 11. Would that happen? I have not seen acknowledgement of this issue or confirmation of MFC to 10.3. That information will help us plan. Regards, LN On Wed, Jan 13, 2016 at 6:0

FreeBSD LAGG port crash

2015-12-16 Thread Lakshmi Narasimhan Sundararajan
Hi Team, I am seeing a crash with 10.1 stable which is not seen in 11-CURRENT. This is with lagg port operations, the below simple sequence of cmds cause system crash. ifconfig lagg0 create ifconfig lagg0 laggproto failover laggport le0 ifconfig lagg0 /* crash here */ See below for the backtraces

Fw: D3300: LAG LACP timeout tunable through IOCTL

2015-08-11 Thread Lakshmi Narasimhan Sundararajan
Hi FreeBSD Team, We have been working on LACP timeout tunable to help expedite link failure propagation through a IOCtl interface. The changes have been tested and review is in progress. The phabricator link is https://reviews.freebsd.org/D3300 We would kindly appreciate if the changes can

Re: FreeBSD LAG LACP timeout tunable through IOCTL

2015-08-03 Thread Lakshmi Narasimhan Sundararajan
ologies.com, Lewis, Fred, 'Tallam, Sreen' Hi LN, You also need to teach `ifconfig' how to toggle this new setting. See sbin/ifconfig/iflagg.c:lagg_cmds[] and how the other LACP options are handled. (Thanks to Genesys on #bsdcode for pointing that out.) Also, please confi

FreeBSD LAG LACP timeout tunable through IOCTL

2015-07-23 Thread Lakshmi Narasimhan Sundararajan
Hi FreeBSD team, In FreeBSD-10 and in Current, by default LACP supports only long timeout. FreeBSD does not provide the way to configure LACP timeout period. We made code changes for LACP Fast-timeout (Using IOCTL, both GET / SET) on FreeBSD-11. And we were able to successfully test the oper

Reg Intel Fortville IXL driver on 11-CURRENT

2015-06-17 Thread Lakshmi Narasimhan Sundararajan
Hi FreeBSD folks, I am part of Panasas and working on evaluating IXL over FreeBSD [11-CURRENT] on Intel Taylor Pass platform for our next product. In that regard, while evaluating performance, we found the Tx performance to be very poor. We found it to be so because the tx interrupts are spread ov

Re: Performance issues with Intel Fortville (XL710/ixl(4))

2015-05-26 Thread Lakshmi Narasimhan Sundararajan
Hi FreeBSD Team! We seem to have found a problem to Tx performance. We found that the tx handling is spread on all CPUs causing probably cache trashing resulting in poor performance. But once we used cpuset to bind interrupt thread and iperf process to the same CPU, performance was close to