Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 15 Jan 2002 10:30:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 15 Jan 2002 10:30:29 -0500 Received: from mail.scs.ch ([212.254.229.5]:52363 "EHLO mail.scs.ch") by vger.kernel.org with ESMTP id ; Tue, 15 Jan 2002 10:30:17 -0500 Message-ID: <3C444AFA.8000605@scs.ch> Date: Tue, 15 Jan 2002 16:30:02 +0100 From: Markus Walser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.7) Gecko/20011221 X-Accept-Language: en-us MIME-Version: 1.0 To: "Justin T. Gibbs" CC: linux-kernel@vger.kernel.org Subject: aic7xxx bus speed Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi I've an aic7899: Ultra160 Wide scsi controller with a few disks under an alpha ds20 running. Now I'm having troubles getting 160MB/s bus speed on the actual kernels (2.4.18pre2/2.5.2pre9). On the kernel 2.2.18 and the redhat kernels 2.4.3-12, 2.4.9-13 I get full speed of 160MB/s. But on the new kernel I get just 80MB/s per bus. So I took a look at the differences between 2.4.9-13 and 2.4.18pre2. You can find a diff of the aic7xxx driver here: http://www.scs.ch/~walser/aic7xxx.diff Basically its the aic7xxx version 6.2.4 insteed of 6.2.1 in the new 2.4.18pre2 kernel. I couldn't find where the problem comes from. Here also some proc info: [root@gugus /root]# uname -a Linux gugus 2.5.2-pre9 #9 SMP Mon Jan 14 21:08:19 CET 2002 alpha unknown [root@gugus /root]# cat /proc/scsi/aic7xxx/2 Adaptec AIC7xxx driver version: 6.2.4 aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs Channel A Target 0 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 0 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 1 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 1 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 2 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 2 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 3 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 3 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 4 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 4 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 5 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 5 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 6 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 7 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 8 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Curr: 80.000MB/s transfers (40.000MHz, offset 63, 16bit) Channel A Target 8 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 9 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 10 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 11 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 12 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 13 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 14 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 15 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) [root@petal0 /root]# __________________________________________________________ [root@gugus /root]# uname -a Linux gugus 2.4.9-13custom #1 SMP Mon Nov 12 12:56:49 CET 2001 alpha unknown [root@gugus /root]# cat /proc/scsi/aic7xxx/2 Adaptec AIC7xxx driver version: 6.2.1 aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/255 SCBs Channel A Target 0 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 0 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 1 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 1 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 2 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 2 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 3 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 3 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 4 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 4 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 5 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 5 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 6 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 7 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 8 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 8 Lun 0 Settings Commands Queued 6 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 9 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 10 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 11 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 12 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 13 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 14 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Channel A Target 15 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Do you have any hints to get back the full 160MB/s speed? Regards, Markus ________________________________________________________ Supercomputing Systems AG email: walser@scs.ch Markus Walser web: http://www.scs.ch Technoparkstrasse 1 phone: +41 1 445 16 00 CH-8005 Zuerich fax: +41 1 445 16 10 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/