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Date:      Fri, 6 Oct 2000 11:23:33 +0200
From:      Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To:        freebsd-scsi@freebsd.org
Cc:        Andre.Albsmeier@mchp.siemens.de
Subject:   Tagged Queueing gone on -STABLE ?
Message-ID:  <20001006112333.A1179@curry.mchp.siemens.de>

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I just rebuilt the newest -STABLE and noticed that there
is no 'Tagged Queueing Enabled' message any more when booting:

 da0 at ahc0 bus 0 target 0 lun 0
 da0: <QUANTUM XP32275W LYK8> Fixed Direct Access SCSI-2 device 
-da0: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled
+da0: 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
 da0: 2170MB (4445380 512 byte sectors: 255H 63S/T 276C)
 da1 at ahc0 bus 0 target 1 lun 0
 da1: <QUANTUM XP32275W LYK8> Fixed Direct Access SCSI-2 device 
-da1: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled
+da1: 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
 da1: 2170MB (4445380 512 byte sectors: 255H 63S/T 276C)
 da2 at ahc0 bus 0 target 2 lun 0
 da2: <QUANTUM XP34550W LYK8> Fixed Direct Access SCSI-2 device 
-da2: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled
+da2: 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
 da2: 4341MB (8890760 512 byte sectors: 255H 63S/T 553C)
 da3 at ahc0 bus 0 target 3 lun 0
 da3: <QUANTUM XP34550W LYK8> Fixed Direct Access SCSI-2 device 
-da3: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing Enabled
+da3: 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
 da3: 4341MB (8890760 512 byte sectors: 255H 63S/T 553C)
 Mounting root from ufs:/dev/da1s1a
 da10 at ahc1 bus 0 target 0 lun 0


I don't know if only the message is missing or the Tagged Queueing
is really disabled. It happens on other machines (with IBM drives)
as well. I am using these two controllers:

ahc0: <Adaptec 2940 Ultra2 SCSI adapter> port 0xb800-0xb8ff mem 0xdd800000-0xdd800fff irq 14 at device 9.0 on pci0
ahc1: <Adaptec 2940 Ultra SCSI adapter> port 0xb400-0xb4ff mem 0xdd000000-0xdd000fff irq 15 at device 10.0 on pci0

Maybe this has to do with the recent changes to the Adaptec driver.

Did others observer similar things? How is it with -current?

	-Andre


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