Re: dc395x: Report

[Robert Annessi <robert@annessi.at>]

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On 08/02/06 01:24, Guennadi Liakhovetski wrote:
> On Tue, 1 Aug 2006, Robert Annessi wrote:
>>
>> The default settings of the module were not applicable for me.
>> When loading the module (or the driver builtin within the kernel) without any
>> additional arguments I got a bunch of these error messages:
>> "dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds"
>> (about 10 per second) and I was not able to access the disk.
> 
> Ok, I think:
> 
> 1) your _device_ is buggy. If you look in drivers/scsi/scsi_devinfo.c in 
> scsi_static_device_list[] blask list, you'll find 2 more SEAGATE drives 
> with problems with tagged commands. Try adding your drive to the list also 
> with BLIST_NOTQ like


It's a decent drive I used with other controllers before - and it worked
out of the box. But maybe it's really a buggy drive..


> {"SEAGATE", "ST3146807LC", "0007", BLIST_NOTQ}
> 
> or you can build dc395x as a module and before loading it add your device 
> to /proc/scsi/device_info. Actually, you can even try it with your 2.6.16 
> kernel, ...
> 
> !!! Oh, no... dc395x doesn't use the generic blacklist table... Anyone to 
> fix it? Until it is fixed you should forget the above and could try 
> disabling it in the driver by either
> 
> a) uncommenting the line
> 
> #define DC395x_NO_TAGQ
> 
> b) removing " | NTC_DO_TAG_QUEUEING" from dev mode from cfg_data
> 
> c) some other dirty trick...
> 
> 2) dc395x was not patched for 2.6.17, only for 2.6.18-rc*, so, would be 
> quite interesting if you could test with that. We haven't had any reports 
> with wide devices with this "help improve support" problem yet.
> 
> 3) if you do get round to testing your system under 2.6.18-rcX, please 
> first test with vanilla kernel without parameters, then with safe=1, then 
> with your disk added to the blacklist (hacked dc395x.c) without and (if 
> still needed) with safe=1. Please, send all (distinct) negotiation 
> protocols from these tests.


Short answer: it works (more or less).

Long answer:
I tested it with a vanilla 2.6.18-rc3 and workaround a) "uncommenting
#define DC395x_NO_TAGQ in dc395x.c".

Notes:
"unknown partition table" is fine. The disk does not have a valid
partition table (dm-crypted the whole disk).
I wonder why the dc395x driver version is still the same as in 2.6.16..?

Anyway, the results are below.

Regards,
Robert



Vanilla module with no additional arguments:
<snip>
dc395x: Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
PCI: Enabling device 0000:00:02.0 (0100 -> 0103)
PCI: Found IRQ 11 for device 0000:00:02.0
dc395x: Used settings: AdapterID=07, Speed=0(20.0MHz), dev_mode=0x37
dc395x:                AdaptMode=0x4e, Tags=0(01), DelayReset=1s
dc395x: (Wide) Connectors: int68  Termination: Auto Low High
dc395x: Performing initial SCSI bus reset
scsi1 : Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
dc395x: Target 00: Wide16 Sync: 48ns Offset 15 (41.7 MB/s)
  Vendor: SEAGATE   Model: ST3146807LC       Rev: 0007
  Type:   Direct-Access                      ANSI SCSI revision: 03
sda : READ CAPACITY failed.
sda : status=12, message=00, host=7, driver=00
sda : sense not available.
sda: test WP failed, assume Write Enabled
sda: asking for cache data failed
sda: assuming drive cache: write through
sda : READ CAPACITY failed.
sda : status=12, message=00, host=7, driver=00
sda : sense not available.
sda: test WP failed, assume Write Enabled
sda: asking for cache data failed
sda: assuming drive cache: write through
 sda:<6>dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
dc395x: QUEUE_FULL for dev <00-0> with 1 cmnds
<snap>


Vanilla module and safe=1:
<snip>
dc395x: Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
PCI: setting IRQ 11 as level-triggered
PCI: Found IRQ 11 for device 0000:00:02.0
dc395x: Using safe settings.
dc395x: Used settings: AdapterID=07, Speed=4(06.7MHz), dev_mode=0x09
dc395x:                AdaptMode=0x0f, Tags=2(04), DelayReset=3s
dc395x: (Wide) Connectors: int68  Termination: Auto Low High
dc395x: Performing initial SCSI bus reset
scsi0 : Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
  Vendor: SEAGATE   Model: ST3146807LC       Rev: 0007
  Type:   Direct-Access                      ANSI SCSI revision: 03
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
SCSI device sda: drive cache: write back w/ FUA
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
SCSI device sda: drive cache: write back w/ FUA
 sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda
<snap>


Module with NO_TAGQ workaround and no additional arguments:
<snip>
dc395x: Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
PCI: Enabling device 0000:00:02.0 (0100 -> 0103)
PCI: Found IRQ 11 for device 0000:00:02.0
dc395x: Used settings: AdapterID=07, Speed=0(20.0MHz), dev_mode=0x37
dc395x:                AdaptMode=0x4e, Tags=0(01), DelayReset=1s
dc395x: (Wide) Connectors: int68  Termination: Auto Low High
dc395x: Performing initial SCSI bus reset
scsi1 : Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
dc395x: Target 00: Wide16 Sync: 48ns Offset 15 (41.7 MB/s)
  Vendor: SEAGATE   Model: ST3146807LC       Rev: 0007
  Type:   Direct-Access                      ANSI SCSI revision: 03
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
BUG: warning at drivers/scsi/dc395x.c:2329/data_in_phase0()
 [<f884c768>] data_in_phase0+0x190/0x244 [dc395x]
 [<f884c15e>] dc395x_handle_interrupt+0xf7/0x128 [dc395x]
 [<f884c1c0>] dc395x_interrupt+0x31/0x5f [dc395x]
 [<c0137975>] handle_IRQ_event+0x21/0x49
 [<c0137a2e>] __do_IRQ+0x91/0xef
 [<c0104a2f>] do_IRQ+0x43/0x50
 [<c01032aa>] common_interrupt+0x1a/0x20
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
BUG: warning at drivers/scsi/dc395x.c:2329/data_in_phase0()
 [<f884c768>] data_in_phase0+0x190/0x244 [dc395x]
 [<f884c15e>] dc395x_handle_interrupt+0xf7/0x128 [dc395x]
 [<f884c1c0>] dc395x_interrupt+0x31/0x5f [dc395x]
 [<c0137975>] handle_IRQ_event+0x21/0x49
 [<c0137a2e>] __do_IRQ+0x91/0xef
 [<c0104a2f>] do_IRQ+0x43/0x50
 [<c01032aa>] common_interrupt+0x1a/0x20
SCSI device sda: drive cache: write back w/ FUA
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
BUG: warning at drivers/scsi/dc395x.c:2329/data_in_phase0()
 [<f884c768>] data_in_phase0+0x190/0x244 [dc395x]
 [<f884c15e>] dc395x_handle_interrupt+0xf7/0x128 [dc395x]
 [<f884c1c0>] dc395x_interrupt+0x31/0x5f [dc395x]
 [<c0137975>] handle_IRQ_event+0x21/0x49
 [<c0137a2e>] __do_IRQ+0x91/0xef
 [<c0104a2f>] do_IRQ+0x43/0x50
 [<c01032aa>] common_interrupt+0x1a/0x20
 [<c0100b10>] default_idle+0x0/0x59
 [<c0100b41>] default_idle+0x31/0x59
 [<c0100c25>] cpu_idle+0xa8/0xcf
 [<c03c07b7>] start_kernel+0x1b6/0x1b8
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
BUG: warning at drivers/scsi/dc395x.c:2329/data_in_phase0()
 [<f884c768>] data_in_phase0+0x190/0x244 [dc395x]
 [<f884c15e>] dc395x_handle_interrupt+0xf7/0x128 [dc395x]
 [<f884c1c0>] dc395x_interrupt+0x31/0x5f [dc395x]
 [<c0137975>] handle_IRQ_event+0x21/0x49
 [<c0137a2e>] __do_IRQ+0x91/0xef
 [<c0104a2f>] do_IRQ+0x43/0x50
 [<c01032aa>] common_interrupt+0x1a/0x20
 [<c0100b10>] default_idle+0x0/0x59
 [<c0100b41>] default_idle+0x31/0x59
 [<c0100c25>] cpu_idle+0xa8/0xcf
 [<c03c07b7>] start_kernel+0x1b6/0x1b8
SCSI device sda: drive cache: write back w/ FUA
 sda: unknown partition table
sd 1:0:0:0: Attached scsi disk sda
<snap>


Module with NO_TAGQ workaround and safe=1:
<snip>
dc395x: Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
PCI: Enabling device 0000:00:02.0 (0100 -> 0103)
PCI: Found IRQ 11 for device 0000:00:02.0
dc395x: Using safe settings.
dc395x: Used settings: AdapterID=07, Speed=4(06.7MHz), dev_mode=0x09
dc395x:                AdaptMode=0x0f, Tags=2(04), DelayReset=3s
dc395x: (Wide) Connectors: int68  Termination: Auto Low High
dc395x: Performing initial SCSI bus reset
scsi2 : Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08
  Vendor: SEAGATE   Model: ST3146807LC       Rev: 0007
  Type:   Direct-Access                      ANSI SCSI revision: 03
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
SCSI device sda: drive cache: write back w/ FUA
SCSI device sda: 286749488 512-byte hdwr sectors (146816 MB)
sda: Write Protect is off
sda: Mode Sense: ab 00 10 08
SCSI device sda: drive cache: write back w/ FUA
 sda: unknown partition table
sd 2:0:0:0: Attached scsi disk sda
<snap>


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