[ofa-general] Re: [RFC] [PATCH 2/3] 2.6.22 or 23 ib/sa: add path record caching

[Sean Hefty]

>  > +static struct miscdevice local_sa_misc = {
>  > +	.minor	= MISC_DYNAMIC_MINOR,
>  > +	.name	= "ib_local_sa",
>  > +};
> 
> I don't understand why you're registering a miscdevice etc.  I don't
> see any implementation of a character device or indeed any userspace
> interface at all.  So what's up here?

The cache creates the following files:

/sys/class/misc/ib_local_sa/paths_per_dest
/sys/class/misc/ib_local_sa/refresh
/sys/class/misc/ib_local_sa/lookup_method

The intent is to allow changing the cache parameters dynamically and for an 
administrator to force a manual refresh of the cache.  The cache settings are 
currently global, rather than per port.

- Sean