From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan-Frode Myklebust Subject: Re: qla2300 at only 1 GBit on kernel 2.6.5 Date: Thu, 3 Jun 2004 22:23:28 +0200 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <20040603202328.GA1148@ii.uib.no> References: <20040505174649.GA21863@ii.uib.no> <87vfiptewv.fsf@frode.valhall.no> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <87vfiptewv.fsf@frode.valhall.no> To: =?iso-8859-1?Q?H=E5vard?= Lygre Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On Sat, May 22, 2004 at 03:43:28AM +0200, H=E5vard Lygre wrote: >=20 > Just as a datapoint: Vanilla Linux 2.6.6 gives me 2 Gbps with both > sides set to auto. This is with a QLogic 2312 (as sold by IBM). I > haven't tried an earlier 2.6-series kernel on this computer. Andrew Vasquez found the problem. The 2.4 driver was forcing the data rate to auto negotiate, while the 2.6 (or 8.x series) driver was honouring the NVRAM setting which was at the default 1 Gbps. Changing to auto negotiate in the qlogic BIOS fixed the problem. >=20 > On a side note: Your driver reports 33 MHz PCI - if this is in a > 32-bit slot, isn't 2Gbps more than the bus can handle? It's a 64 bit slot.. -jf