Date: Wed, 25 Sep 2002 10:29:14 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Bruce M Simpson <bms@spc.org> Cc: Paolo Pisati <p.pisati@oltrelinux.com>, FreeBSD_Hackers <freebsd-hackers@FreeBSD.ORG> Subject: Re: Hey, is there space for a newbie? =) Message-ID: <Pine.BSF.4.21.0209251025140.68759-100000@root.org> In-Reply-To: <20020925092017.GL23343@spc.org>
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On Wed, 25 Sep 2002, Bruce M Simpson wrote: > On Tue, Sep 24, 2002 at 12:32:40PM -0700, Nate Lawson wrote: > > How about updating Alpine (alpine.cs.washington.edu) and fixing a lot of > > its lousy hacks (i.e. the sysinit stuff)? > > Nice idea, but a lot of people will/are use/using Bochs or VMware for this. > Mind you, the Alpine approach doesn't require as much other crap (vmnet, > vmmon, et al) to operate. And tun(4) could be used as a faux ethernet driver. It's still useful and can be expanded like usermode Linux. Having both the user code calling a socket and tcp_output in the same address space helps a lot for GDB. Your approach is also useful. > > Zero copy BPF? > > This is a seriously nice idea; but won't it require user-space applications > to allocate their buffers on page boundaries (assuming MMU page tricks are > one underlying mechanism to avoid copies) ? See options ZERO_COPY. Similar tricks would be needed. > > Port the Linux Rockwell/Conexant winmodem support to freebsd? (Tons of > > laptops have this chipset). > > http://www.mbsi.ca/cnxtlindrv/ > > I had a brief look at this last month. I should warn you that the Linux > driver is simply a wrapper. The actual software modem is a Linux object > with encrypted symbols which is linked in to the wrapper to provide the > loadable softmodem module. I didn't get further than that - but I imagine > that there must be some way to convert the module to something which > could be linked in to a corresponding FreeBSD .ko. Yep. The grunt work is in mapping the FreeBSD kernel services to provide the expected entries their binary driver wants. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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