Date: Sun, 29 Jan 2012 13:49:24 +0100 From: Stefan Bethke <stb@lassitu.de> To: Aleksandr Rybalko <ray@ddteam.net> Cc: Juli Mallett <jmallett@FreeBSD.org>, FreeBSD Net <freebsd-net@freebsd.org>, Adrian Chadd <adrian@freebsd.org>, Aleksandr Rybalko <ray@freebsd.org>, FreeBSD-arch <freebsd-arch@freebsd.org> Subject: Re: Ethernet Switch Framework Message-ID: <5DD20168-B908-4737-9983-3570E2BF32D3@lassitu.de> In-Reply-To: <20120129144413.a8045873.ray@ddteam.net> References: <20120120221319.ca8b631f.ray@freebsd.org> <30A45A1E-CA13-4AC8-86FB-F8E06301D1F6@lassitu.de> <20120122195130.360261ce.ray@freebsd.org> <CAJ-VmokTh2q0ZH=kwU6GzJm5Mr4k7geJiFsoX_A9hcLhMZNxsg@mail.gmail.com> <0E31FEC4-963D-4AC8-9AB7-EE6D6D7F86EE@lassitu.de> <CAJ-Vmo=GRKRf%2BYsFqNm9d_T3Tq583uV_pabMV6ozuaytSRLivg@mail.gmail.com> <20120129001251.7e4cfe83.ray@ddteam.net> <CACVs6=-U9rr7cpeJ%2BVUgP3Xq1yRB=Xk1GjuzEOuXiEUoqGFq_Q@mail.gmail.com> <045BA867-B83B-4C2E-AB4F-4D09E49B7F3D@lassitu.de> <20120129144413.a8045873.ray@ddteam.net>
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Am 29.01.2012 um 13:44 schrieb Aleksandr Rybalko: >> The MII connection between the ethernet controller and the switch >> chip (usually referred to as the "CPU" port) is hard-coded and has no >> media settings, so there's no question what if_media settings should >> be presented on the interface. >=20 > Most switches (AR8x16 for example) have configurable MII port, so you > can choose to use MII/RMII/GMII/RGMII. If you decide to use MII > media can not be higher than 100baseTX. So it is possible to use some > auto-negotiation here. The point is that the admin has no need to change it, it's hard coded in = the driver or statically configured via hints. And for all of this = discussion, I'm using MII as a synonym for all xMII busses. Stefan --=20 Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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