Bug 166892

Summary:	poor performance of tg3 network card under amd64 x86_64
Product:	Gentoo Linux	Reporter:	Eero Volotinen <eero>
Component:	New packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	VERIFIED NEEDINFO
Severity:	normal
Priority:	High
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Eero Volotinen 2007-02-14 19:38:07 UTC

I am running gentoo kernel 2.6.20 under sun fire x2100 server and its performance is about 1/10 of full speed, (read: unable to use it)

Linux router 2.6.20-gentoo #3 Mon Feb 12 19:16:29 EET 2007 x86_64 AMD Opteron(tm) Processor 146 GNU/Linux

eth0: Tigon3 [partno(BCM95721) rev 4101 PHY(5750)] (PCI Express) 10/100/1000Base-T Ethernet 00:e0:81:5e:4a:94
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] Split[0] WireSpeed[1] TSOcap[1] 
eth0: dma_rwctrl[76180000] dma_mask[64-bit]

how to resolve issue?

Reproducible: Always

Comment 1 Jakub Moc (RETIRED) gentoo-dev

2007-02-14 19:59:19 UTC

(In reply to comment #0)
> how to resolve issue?

Like, set your link speed properly with ethtool/mii-tool or whatever? This is not a support forum and you didn't post any information to debug the issue, let alone an information that would suggest that it's a Gentoo-specific bug.

Comment 2 Eero Volotinen 2007-02-14 20:02:49 UTC

I am not sure if this is gentoo spefic, since I am unable to resolve the issue, but there is ethtool output

Settings for eth0:
        Supported ports: [ 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: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: yes

Comment 3 Eero Volotinen 2007-02-15 13:46:36 UTC

closed. cisco switch was broken.