[openib-general] RFC: ib_set_comp_handler

[Fab Tillier]

> From: Michael S. Tsirkin [mailto:mst at mellanox.co.il]
> Sent: Monday, September 12, 2005 10:03 AM
> 
> Quoting r. Fab Tillier <ftillier at silverstorm.com>:
> > It seems that what you really want is a way to disarm a CQ, not change the
> > completion handler.
> Yes, but changing the handler to an empty function looks like an easy
> way to do it, without adding conditions on typical event path.

It might be worth changing the name of the function to reflect that -
ib_clr_comp_handler, for example.

> See the patch I posted separately.

Sorry, I missed that.  I'll take a look.

> > Are CQs shared between sockets in SDP, or does each socket
> > have its own CQ?
> 
> Currently each socket has 2 CQs.

Doesn't the verbs layer provide synchronization between CQ callbacks and CQ
destruction?  Why not just destroy the CQs and avoid having to change the
handler?

- Fab