Re: FBSD-13 - Vale maximum virtual switches.
- Reply: Santiago Martinez : "Re: FBSD-13 - Vale maximum virtual switches."
- In reply to: Santiago Martinez : "FBSD-13 - Vale maximum virtual switches."
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Date: Thu, 03 Mar 2022 22:03:44 UTC
Hi, Yes, the maximum number of VALE bridges should definitely become a sysctl. I'll try to implement the change asap. Cheers, Vincenzo Il giorno gio 3 mar 2022 alle ore 19:07 Santiago Martinez < sm@codenetworks.net> ha scritto: > Hi Everyone, > > The other day had to simulate a network topology and I wanted to use vale > switches instead of in-kernel bridges. > > After creating a few switches I notice that there was a hard limit of 8 > switches ( that is clearly stated on the man page). > > For my simulation I needed 32 virtual switches, hence I increase the value > of NM_BRIDGES from 8 to 64. > > After that I was able to create the bridges and they seem to work fine. > > My question is, do we need that hard limit on 8? Should this be change to > a dynamic value set with sysctl? > > Best regards. > Santi > > diff --git a/sys/dev/netmap/netmap_bdg.h b/sys/dev/netmap/netmap_bdg.h > > index e4683885e66c..3afe1d9d5d99 100644 > --- a/sys/dev/netmap/netmap_bdg.h > +++ b/sys/dev/netmap/netmap_bdg.h > @@ -73,8 +73,8 @@ struct netmap_bdg_ops { > int netmap_bwrap_attach(const char *name, struct netmap_adapter *, struct > netmap_bdg_ops *); > int netmap_bdg_regops(const char *name, struct netmap_bdg_ops *bdg_ops, > void *private_data, void *auth_token); > > -#define NM_BRIDGES 8 /* number of bridges */ > -#define NM_BDG_MAXPORTS 254 /* up to 254 */ > +#define NM_BRIDGES 64 /* number of bridges */ > +#define NM_BDG_MAXPORTS 16 /* up to 254 */ > #define NM_BDG_BROADCAST NM_BDG_MAXPORTS > #define NM_BDG_NOPORT (NM_BDG_MAXPORTS+1) > > > >