From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andreas Schwab <schwab@suse.de>
Cc: netdev@vger.kernel.org, linuxppc64-dev@ozlabs.org
Subject: Re: GigE on PowerMac G5
Date: Sun, 05 Mar 2006 08:16:40 +1100 [thread overview]
Message-ID: <1141507000.17127.4.camel@localhost.localdomain> (raw)
In-Reply-To: <jebqwmfeh9.fsf@sykes.suse.de>
On Sat, 2006-03-04 at 15:53 +0100, Andreas Schwab wrote:
> [Sorry for duplicate posting, I've used the wrong list address.]
>
> I suppose the NIC in the PowerMac G5 can do GigE, yet when plugged into a
> GB switch it is only willing to talk 100MB with it. Any idea why? Kernel
> is 2.6.16-rc5-git2.
Works for me... Must be a problem with auto-neg and your switch, or the
cable.... Can you check how the switch is configured maybe ? You can
also try forcing the link speed with ethtool.
Ben.
> # lsprop /proc/device-tree/ht@0,f2000000/pci@6/ethernet@f
> name "ethernet"
> linux,phandle ff9c53d8
> interrupt-parent ff9779b0
> gbit-phy
> assigned-addresses 82047810 00000000 80400000 00000000 00200000
> 82047830 00000000 80300000 00000000 00100000
> local-mac-address 00 0a 95 ba b8 70 .....p
> stats 00000000 00000000 00000000 00000000 00000000
> reg 00047800 00000000 00000000 00000000 00000000
> 02047810 00000000 00000000 00000000 00020000
> 02047830 00000000 00000000 00000000 00010000
> max-frame-size 000005ee (1518)
> address-bits 00000030 (48)
> built-in
> compatible "K2-GMAC"
> category "net"
> removable "network"
> network-type "ethernet"
> device_type "network"
> fast-back-to-back
> devsel-speed 00000002
> max-latency 00000040 (64)
> min-grant 00000040 (64)
> interrupts 00000029 00000001
> class-code 00020000 (131072)
> revision-id 00000000
> device-id 0000004c (76)
> vendor-id 0000106b (4203)
> # ethtool eth0
> Settings for eth0:
> Supported ports: [ TP MII ]
> Supported link modes: 10baseT/Half 10baseT/Full
> 100baseT/Half 100baseT/Full
> 1000baseT/Half 1000baseT/Full
> Supports auto-negotiation: Yes
> Advertised link modes: 10baseT/Half 10baseT/Full
> 100baseT/Half 100baseT/Full
> 1000baseT/Half 1000baseT/Full
> Advertised auto-negotiation: No
> Speed: 100Mb/s
> Duplex: Full
> Port: MII
> PHYAD: 0
> Transceiver: external
> Auto-negotiation: on
> Supports Wake-on: g
> Wake-on: d
> Current message level: 0x00000007 (7)
> Link detected: yes
>
> Andreas.
>
next prev parent reply other threads:[~2006-03-04 21:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-04 14:53 GigE on PowerMac G5 Andreas Schwab
2006-03-04 21:16 ` Benjamin Herrenschmidt [this message]
2006-03-06 10:40 ` Andreas Schwab
2006-03-06 13:15 ` Benjamin Herrenschmidt
2006-03-07 12:53 ` Andreas Schwab
2006-03-13 14:49 ` Andreas Schwab
2006-03-04 23:36 ` Paul Mackerras
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