On Thu, Nov 30, 2023 at 01:45:25PM +0100, Stefano Brivio wrote:
> On Thu, 30 Nov 2023 13:02:20 +1100
> David Gibson <david@gibson.dropbear.id.au> wrote:
> 
> > Future debugging will want to identify a specific passt interface.  We make
> > a distinction in these helpers between the name of the *type* of pif, and
> > name of the pif itself.  For the time being these are always the same
> > thing, since we have at most instance of each type of pif.  However, that
> > might change in future.
> > 
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> >  Makefile |  3 ++-
> >  pif.c    | 21 +++++++++++++++++++++
> >  pif.h    | 19 +++++++++++++++++++
> >  3 files changed, 42 insertions(+), 1 deletion(-)
> >  create mode 100644 pif.c
> > 
> > diff --git a/Makefile b/Makefile
> > index d14b029..af4fa87 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -46,7 +46,8 @@ FLAGS += -DDUAL_STACK_SOCKETS=$(DUAL_STACK_SOCKETS)
> >  
> >  PASST_SRCS = arch.c arp.c checksum.c conf.c dhcp.c dhcpv6.c flow.c icmp.c \
> >  	igmp.c isolation.c lineread.c log.c mld.c ndp.c netlink.c packet.c \
> > -	passt.c pasta.c pcap.c port_fwd.c tap.c tcp.c tcp_splice.c udp.c util.c
> > +	passt.c pasta.c pcap.c pif.c port_fwd.c tap.c tcp.c tcp_splice.c udp.c \
> > +	util.c
> >  QRAP_SRCS = qrap.c
> >  SRCS = $(PASST_SRCS) $(QRAP_SRCS)
> >  
> > diff --git a/pif.c b/pif.c
> > new file mode 100644
> > index 0000000..ebf01cc
> > --- /dev/null
> > +++ b/pif.c
> > @@ -0,0 +1,21 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later
> > + * Copyright Red Hat
> > + * Author: David Gibson <david@gibson.dropbear.id.au>
> > + *
> > + * Passt/pasta interface types and IDs
> > + */
> > +
> > +#include <stdint.h>
> > +#include <assert.h>
> > +
> > +#include "util.h"
> > +#include "pif.h"
> > +
> > +const char *pif_type_str[] = {
> > +	[PIF_NONE]		= "<none>",
> > +	[PIF_HOST]		= "HOST",
> > +	[PIF_TAP]		= "TAP",
> > +	[PIF_SPLICE]		= "SPLICE",
> 
> Nit, not worth respinning in my opinion: those are just English
> nouns, not acronyms, so they could simply be printed as "host", "tap",
> and "splice".

I'd been thinking of pif names in caps to make them stand out from
other things, but it doesn't really matter that much.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson