network stack problem in sparc64?

[John Baldwin]

On Monday 25 September 2006 12:34, Maksim Yevmenkin wrote:
> Borja Marcos wrote:
> > Hello,
> > 
> > I saw this some time ago but always forgot to report it.
> > 
> > I'm running a pair of machines with FreeBSD/sparc64 (various versions, 
> > one of them is running -STABLE now), and I've seen a problem with the 
> > network stack.
> > 
> > Looking at buffer and window sizes,
> > 
> > earendil# sysctl net.inet.tcp|fgrep space
> > net.inet.tcp.sendspace: 0
> > net.inet.tcp.recvspace: 0
> > 
> > earendil# sysctl net.inet.udp
> > net.inet.udp.checksum: 1
> > net.inet.udp.maxdgram: 0
> > net.inet.udp.recvspace: 0
> > 
> > When I try to modify them, it doesn't work at all. For example, trying 
> > to run nfcapd/nfsen in a sparc64 box, I get an error for a setsockopt() 
> > call
> > 
> > earendil# /usr/local/etc/rc.d/nfsen start
> > Starting nfsenStarting nfcpad: upstream1setsockopt(SO_RCVBUF,200000): 
> > Invalid argument
> > Terminated due to errors.
> > nfcapd exec error: exit: 255, signal: 0, coredump: 0
> > 
> > 
> > For x86 machines the values are correctly reported and they work as 
> > expected.
> > 
> > I have been poking Google for this but I haven't seen any mention of this.
> 
> hmmm...  how about this (untested) patch?

Probably better to use SYSCTL_ULONG() instead of SYSCTL_INT() and leave the 
variables as u_long.

> --- tcp_usrreq.c.orig   Fri Nov  4 12:26:14 2005
> +++ tcp_usrreq.c        Mon Sep 25 09:31:42 2006
> @@ -1161,10 +1161,10 @@
>    * sizes, respectively.  These are obsolescent (this information should
>    * be set by the route).
>    */
> -u_long tcp_sendspace = 1024*32;
> +int    tcp_sendspace = 1024*32;
>   SYSCTL_INT(_net_inet_tcp, TCPCTL_SENDSPACE, sendspace, CTLFLAG_RW,
>       &tcp_sendspace , 0, "Maximum outgoing TCP datagram size");
> -u_long tcp_recvspace = 1024*64;
> +int    tcp_recvspace = 1024*64;
>   SYSCTL_INT(_net_inet_tcp, TCPCTL_RECVSPACE, recvspace, CTLFLAG_RW,
>       &tcp_recvspace , 0, "Maximum incoming TCP datagram size");
> 
> --- udp_usrreq.c.orig   Wed Sep 13 11:19:26 2006
> +++ udp_usrreq.c        Mon Sep 25 09:32:00 2006
> @@ -923,12 +923,12 @@
>          return (error);
>   }
> 
> -u_long udp_sendspace = 9216;           /* really max datagram size */
> +int    udp_sendspace = 9216;           /* really max datagram size */
>                                          /* 40 1K datagrams */
>   SYSCTL_INT(_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW,
>       &udp_sendspace, 0, "Maximum outgoing UDP datagram size");
> 
> -u_long udp_recvspace = 40 * (1024 +
> +int    udp_recvspace = 40 * (1024 +
>   #ifdef INET6
>                                        sizeof(struct sockaddr_in6)
>   #else
> 
> thanks,
> max
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> 

-- 
John Baldwin