On Thu, Feb 25, 2010 at 2:37 PM, Dries Kimpe <dki...@mcs.anl.gov> wrote: > > * Hal Rosenstock <hal.rosenst...@gmail.com> [2010-02-25 09:45:04]: > >> The link won't renegotiate automatically. The link needs to be reset >> after updating the speed/width enabled values. Was that done ? > > I assumed OpenSM was resetting the link. Are you saying I need to run > ibportstate reset in addition to running a modified opensm?
Yes. > (Or, using only ibportstate using ibportstate speed followed by a > ibportstate reset?) That's another alternative (to using the modified opensm to change the speed/width. >> > - Is there another way to get what I want (control over link width+speed)? > >> The latest ibportstate can do this. > > I installed the latest version, and it indeed has width and speed. > However, it doesn't seem to have any effect: > > > [dki...@f28]~% sudo /usr/sbin/ibportstate 232 1 query > PortInfo: > # Port info: Lid 232 port 1 > LinkState:.......................Active > PhysLinkState:...................LinkUp > LinkWidthSupported:..............1X or 4X > LinkWidthEnabled:................1X or 4X > LinkWidthActive:.................4X > LinkSpeedSupported:..............2.5 Gbps or 5.0 Gbps or 10.0 Gbps > LinkSpeedEnabled:................2.5 Gbps or 5.0 Gbps or 10.0 Gbps > LinkSpeedActive:.................10.0 Gbps > > [dki...@f28]~% sudo /usr/sbin/ibportstate 232 1 speed 1 > Initial PortInfo: > # Port info: Lid 232 port 1 > LinkSpeedEnabled:................2.5 Gbps or 5.0 Gbps or 10.0 Gbps > > After PortInfo set: > # Port info: Lid 232 port 1 > LinkSpeedEnabled:................2.5 Gbps > [dki...@f28]~% sudo /usr/sbin/ibportstate 232 1 query > PortInfo: > # Port info: Lid 232 port 1 > LinkState:.......................Active > PhysLinkState:...................LinkUp > LinkWidthSupported:..............1X or 4X > LinkWidthEnabled:................1X or 4X > LinkWidthActive:.................4X > LinkSpeedSupported:..............2.5 Gbps or 5.0 Gbps or 10.0 Gbps > LinkSpeedEnabled:................2.5 Gbps > LinkSpeedActive:.................10.0 Gbps > > [dki...@f28]~% sudo /usr/sbin/ibportstate 232 1 reset > ibportstate: iberror: failed: smp query nodeinfo: Node type not switch You need to reset the peer switch port to get the link to renegotiate. Hopefully then you'll see the correct values for active. -- Hal > Thanks, > Dries > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
