Date: Fri, 16 Dec 2011 09:03:14 +0100 From: Stefan Bethke <stb@lassitu.de> To: Adrian Chadd <adrian@freebsd.org> Cc: "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org> Subject: Re: Updated switch/glue patch? Message-ID: <C637C171-A1A2-4296-84FA-6DE97137DC42@lassitu.de> In-Reply-To: <CAJ-Vmo=WSN1oLM=B2HqSHrWyOaOD9BSwwu8=1Wys0CLRJ_N-TA@mail.gmail.com> References: <CAJ-Vmon8%2BOXQ4g752zZEB-O0BR0sFWO0QUvw--xp2jsBDkx6tQ@mail.gmail.com> <0F6CC18F-6973-42A2-AC03-F01BF59458AE@lassitu.de> <CAJ-Vmo=Y8pp4iFnw%2B1hcPae6QXFboz=a7puwgC1kVSZ3JwMgPQ@mail.gmail.com> <1100F70E-9DA9-4163-AC9A-423ECE5AA9A3@lassitu.de> <CAJ-VmonrnJ7cC6u2LsL9AGusz_%2BkSwY62Rr1__sg5U_NynJ1SQ@mail.gmail.com> <CAJ-Vmo=WSN1oLM=B2HqSHrWyOaOD9BSwwu8=1Wys0CLRJ_N-TA@mail.gmail.com>
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Am 16.12.2011 um 01:54 schrieb Adrian Chadd: > I have it compiling and working in the kernel. I haven't tested it as = a module. >=20 > The LAN ports are VLAN 1 (untagged) and I haven't tested those; the > WAN port is VLAN 2 (tagged) and I've verified this works. > Woot. :) >=20 > Now, LORs. I haven't looked at looking at all so far. There is one more problem which is not immediately apparent: the = register access is slooooow. The rtl_tick callback that runs once a = second needs .8 seconds to complete, see sysctl debug.rtl8366rb. Most = of this time is spent in DELAY() in iicbb.c, making the system rather = unresponsive. rtl_tick() runs mii_tick() and mii_pollstat() for all five PHYs. We can = likely leave out mii_tick() since the built-in PHYs don't need ticks for = autonegotiation to work correctly. Leaving out mii_pollstat() means = that link state changes won't be detected and reported automatically but = only when you run e.g. etherswitchcfg port0. I'm currently looking into iicbb.c, since I believe it is DELAY()ing way = too much (running at effectively 20kHz instead of 100kZh for I2C). I'll = try to speed it up, since the RTL8366RB can go at least at 100kHz. Stefan --=20 Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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