[openib-general] [PATCH] use mmiowb after doorbell ring

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> libraries don't stick anything in home directories -- I'm just
> suggesting $HOME/.libibverbs.conf as a place to stick extra configs
> that users might want to add.
> 
> I'm kind of thinking that we might want other config options beyond
> just driver names someday.  Otherwise we might as well have
> /etc/libibverbs.drivers.d and an environment variable IBV_DRIVERS, I
> guess.  But it might be nice to be able to add a line like
> 
>     default-fork-safe true
> 
> somewhere in libibverbs.conf.d to set a system-wide default.
> 
> I dunno what's better.  Maybe separate environment variables for
> user-specific configs are just as good -- eg that's what ld.so does.

Possible usage examples:
I was thinking about some networked filesystem to have all boxes in the lab get
stuff from central place before the run, instead of copying stuff over.
I don't want to consider NFS-based home directory though.
Using environment makes it easier for me to avoid need to istall stuff
on local disks, at all.

-- 
MST