[sata] libata update

[sata] libata update

[Jeff Garzik]

This adds a driver for SiS SATA, and updates Intel ICH5 (ata_piix) 
probing.  Particularly users with combined mode probing problems and 
modprobe+rmmod+modprobe problems.  Please test.

BK repositories (note that these URLs are BK not HTTP):
	http://gkernel.bkbits.net/libata-2.4
	http://gkernel.bkbits.net/libata-2.6

Patches:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.25-libata11.patch.bz2
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc2-bk3-libata1.patch.bz2

This will go upstream once 2.6.5 is released.

[sata] libata update

[Jeff Garzik]

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More work on libata...  human-readable summary:
* scsi portion of command submission path now a lot more lightweight. 
Should reduce CPU usage a bit.
* improved documentation (see below)
* New SiS SATA driver.
* Promise: minor improvements in locking, error handling, and 
initialization.  Promise users, please test.
* Intel ICH5:  minor improvements in probing and combined mode handling. 
  Intel users, please test.

This is going to Linus after 2.6.5 is released.

BK repositories:
	http://gkernel.bkbits.net/libata-2.[46]

Patches:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.25-libata15.patch.bz2
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc2-bk6-libata2.patch.bz2

And also, there are some PDF docs generated from the source code. 
Although this is always available via "make pdfdocs", I also post this 
document at
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/libata.pdf


I have attached the short and long changelogs for the above patches, 
versus upstream 2.6.x.




[-- Attachment #2: changelog.txt --]
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<uwe.koziolek:gmx.net>:
  o [libata] Add driver for SiS 964/180 SATA

Jeff Garzik:
  o [libata sata_promise] better locking and error handling
  o [libata] more documentation
  o [libata] more cmd queue path cleanups
  o [libata] more command queue path cleanup
  o [libata] clean up command queue/submit path a bit
  o [libata sata_promise] minor initialization updates
  o [libata] documentation, and a couple tiny cleanups
  o [libata] use scsi host lock
  o [libata] reduce diff with 2.4 libata backport
  o [libata] pci_dma_error() was renamed to pci_dma_mapping_error()
  o [ata] move some generic stuff linux/libata.h -> linux/ata.h
  o [libata] consolidate data transfer mode handling
  o [libata] set up some of the per-command data beforehand
  o [libata sata_promise] check for PATA port on PDC20375
  o [libata ata_piix] fix combined mode device detection
  o [libata ata_piix] clean up combined mode handling
  o [libata ata_piix] do not disable SATA port on module unload
  o [libata] use kmap_atomic() rather than kmap()
  o [libata] use new pci_dma_error() to check for pci_map_single() failure
  o [libata sata_sis] minor cleanups


[-- Attachment #3: changelog-long.txt --]
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ChangeSet@1.1694, 2004-03-26 20:40:58-05:00, jgarzik@redhat.com
  [libata sata_promise] better locking and error handling
  
  * Prefer spin_lock() to spin_lock_irq() in interrupt handler
  * Reset each port, before probing the SATA phy
  * Reset port when every time an error occurs

ChangeSet@1.1673.6.13, 2004-03-26 18:02:34-05:00, jgarzik@redhat.com
  [libata] more documentation
  
  libata-scsi.c should now be fully documented.

ChangeSet@1.1673.6.12, 2004-03-26 04:04:17-05:00, jgarzik@redhat.com
  [libata] more cmd queue path cleanups
  
  Final part in tonight's series of changes to clean up the
  command queueing path.
  
  The simulate-ATA-over-SCSI code is moved to a new function,
  ata_scsi_simulate(), and ata_scsi_rw_queue() is renamed to
  ata_scsi_translate().  With the SCSI CDB debugging dump function
  also moved into its own function, the queue-command path is now
  nice, compact, and readable.

ChangeSet@1.1673.6.11, 2004-03-26 03:32:10-05:00, jgarzik@redhat.com
  [libata] more command queue path cleanup
  
  A new helper ata_scsi_xlat_possible(), and the command queue path
  gets a bit more compact.
  
  As side effects we kill the 'cmd_size' argument from two functions,
  and mark ata_scsi_rw_queue() as static, as its only needed 
  in libata-scsi.c.

ChangeSet@1.1673.6.10, 2004-03-26 03:20:47-05:00, jgarzik@redhat.com
  [libata] clean up command queue/submit path a bit
  
  This change is part of a series that compartmentalizes and consolidates
  ATA taskfile submission.
  
  Here, the device-location-related checks are moved out of the ->queuecommand()
  hook and into an inline helper function.

ChangeSet@1.1673.6.9, 2004-03-26 01:13:20-05:00, jgarzik@redhat.com
  [libata sata_promise] minor initialization updates
  
  * remove incorrect PATA port check
  * enable undocumented bit 13 in flash control register,
    because the Promise driver does so.
  * wait 10 ms after setting TBG mode, for the same reason.

ChangeSet@1.1673.6.8, 2004-03-25 17:23:41-05:00, jgarzik@redhat.com
  [libata] documentation, and a couple tiny cleanups
  
  Add more per-function source code documentation.  Some of this stuff
  is esoteric ATA crapola, and definitely needed to be documented.
  
  Also, two tiny cleanups spotted while documenting:
  * kill unused arg from internal function ata_dev_try_classify()
  * kill unused return value from ata_dev_id_string()

ChangeSet@1.1673.6.7, 2004-03-25 14:40:17-05:00, jgarzik@redhat.com
  [libata] use scsi host lock
  
  In 2.4 we release io_request_lock and take our own per-host lock,
  in the ->queuecommand() hook.  In 2.6, the SCSI layer provides a
  useful to simply use the lock we already have, via scsi_assign_lock().

ChangeSet@1.1673.6.6, 2004-03-25 14:36:59-05:00, jgarzik@redhat.com
  [libata] reduce diff with 2.4 libata backport

ChangeSet@1.1673.6.5, 2004-03-25 14:36:27-05:00, jgarzik@redhat.com
  [libata] pci_dma_error() was renamed to pci_dma_mapping_error()

ChangeSet@1.1643.1.215, 2004-03-25 01:57:34-05:00, jgarzik@redhat.com
  [ata] move some generic stuff linux/libata.h -> linux/ata.h
  
  struct ata_taskfile is generic, and so far its flags (ATA_TFLAG_xxx)
  
  Also, move ATA_PROT_xxx definitions into their own enum.

ChangeSet@1.1643.1.214, 2004-03-25 01:44:08-05:00, jgarzik@redhat.com
  [libata] consolidate data transfer mode handling
  
  The various ways you can send data to/from your ATA device is
  known as the ATA taskfile protocol:  PIO single sector, PIO
  multiple sector, DMA, DMA TCQ, DMA NCQ, ...
  
  Prior to this change, the data direction (read/write) was encoded
  implicitly into the ATA_PROT_xxx value itself.  This increased
  complexity in some areas, and inhibited flexibility in others.
  
  This change separates data direction from taskfile protocol, and also
  moves the data direction flag (ATA_QCFLAG_WRITE) down to a lower
  level (ATA_TFLAG_WRITE).

ChangeSet@1.1643.1.213, 2004-03-25 00:53:07-05:00, jgarzik@redhat.com
  [libata] set up some of the per-command data beforehand
  
  The data transfer mode and the set of read/write commands we generate
  during normal operation remains constant until we change the data
  transfer mode.
  
  This removes a series of branches in the read/write fast path,
  and in general cleans up that particular spot of code.

ChangeSet@1.1643.1.212, 2004-03-24 23:50:34-05:00, jgarzik@redhat.com
  [libata sata_promise] check for PATA port on PDC20375
  
  We don't handle it yet, but this prints out a message in its presence,
  permitting verification of the check and informing users why their
  PATA device is not recognized.

ChangeSet@1.1643.1.211, 2004-03-23 12:35:54-05:00, jgarzik@redhat.com
  [libata ata_piix] fix combined mode device detection
  
  SATA port detection should not have assumed that a single SATA port
  mapped to a single struct ata_port.  Combined mode breaks this
  assumption.
  
  Change code to simply detect if one or more devices are present
  on the struct ata_port, which is what we really wanted to do.

ChangeSet@1.1643.1.210, 2004-03-23 11:52:00-05:00, jgarzik@redhat.com
  [libata ata_piix] clean up combined mode handling

ChangeSet@1.1643.1.209, 2004-03-23 11:14:06-05:00, jgarzik@redhat.com
  [libata ata_piix] do not disable SATA port on module unload
  
  We were disabling the SATA port, but not enabling it on module load.
  So, modprobe+rmmod+modprobe would fail.

ChangeSet@1.1643.1.208, 2004-03-23 09:20:14-05:00, jgarzik@redhat.com
  [libata] use kmap_atomic() rather than kmap()

ChangeSet@1.1643.1.207, 2004-03-22 23:40:01-05:00, jgarzik@redhat.com
  [libata] use new pci_dma_error() to check for pci_map_single() failure

ChangeSet@1.1643.39.2, 2004-03-21 12:15:16-05:00, jgarzik@redhat.com
  [libata sata_sis] minor cleanups

ChangeSet@1.1643.39.1, 2004-03-21 11:55:35-05:00, uwe.koziolek@gmx.net
  [libata] Add driver for SiS 964/180 SATA.

Re: [sata] libata update

[Petr Sebor]

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Hi Jeff,

I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
sata drive anymore...

I am seeing this:
-------------------------------------------------------------------
libata version 1.02 loaded.
sata_via version 0.20
sata_via(0000:00:0f.0): routed to hard irq line 11
ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003 
88:203f
ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
ata1: dev 0 configured for UDMA/100
scsi0 : sata_via
ata2: no device found (phy stat 00000000)
ata2: thread exiting
scsi1 : sata_via
Using anticipatory io scheduler
   Vendor: ATA       Model: WDC WD2500JD-00F  Rev: 1.02
   Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB)
SCSI device sda: drive cache: write through
  sda: sda1 sda2
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
--------------------------------------------------------------------
instead of this:
libata version 1.00 loaded.
sata_via version 0.11
ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003 
88:203f
ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
ata1: dev 0 configured for UDMA/100
scsi0 : sata_via
ata2: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003 
88:407f
ata2: dev 0 ATA, max UDMA/133, 72303840 sectors (lba48)
ata2: dev 0 configured for UDMA/133
scsi1 : sata_via
Using anticipatory io scheduler
   Vendor: ATA       Model: WDC WD2500JD-00F  Rev: 1.00
   Type:   Direct-Access                      ANSI SCSI revision: 05
   Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.00
   Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB)
SCSI device sda: drive cache: write through
  sda: sda1 sda2
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 72303840 512-byte hdwr sectors (37020 MB)
SCSI device sdb: drive cache: write through
  sdb: sdb1
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 0, lun 0,  type 0

Regards,
Petr


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Re: [sata] libata update

[Jeff Garzik]

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Petr Sebor wrote:
> Hi Jeff,
> 
> I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
> sata drive anymore...

Does this patch fix it?

	Jeff



[-- Attachment #2: patch --]
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===== drivers/scsi/sata_via.c 1.10 vs edited =====
--- 1.10/drivers/scsi/sata_via.c	Thu Mar 25 07:30:08 2004
+++ edited/drivers/scsi/sata_via.c	Tue Mar 30 18:13:16 2004
@@ -56,6 +56,7 @@
 static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
 static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg);
 static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
+static void svia_phy_reset(struct ata_port *ap);
 
 static struct pci_device_id svia_pci_tbl[] = {
 	{ 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, via_sata },
@@ -96,7 +97,7 @@
 	.check_status		= ata_check_status_pio,
 	.exec_command		= ata_exec_command_pio,
 
-	.phy_reset		= sata_phy_reset,
+	.phy_reset		= svia_phy_reset,
 
 	.bmdma_start            = ata_bmdma_start_pio,
 	.fill_sg		= ata_fill_sg,
@@ -115,6 +116,13 @@
 MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers");
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, svia_pci_tbl);
+
+static void svia_phy_reset(struct ata_port *ap)
+{
+	ap->cbl = ATA_CBL_SATA;
+	ata_port_probe(ap);
+	ata_bus_reset(ap);
+}
 
 static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg)
 {

Re: [sata] libata update

[Jarno Paananen]

Jeff Garzik <jgarzik@pobox.com> writes:

> Petr Sebor wrote:
>> Hi Jeff,
>> I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
>> sata drive anymore...
>
> Does this patch fix it?

I'm using the 2.4 kernel version (would be using 2.6 if there was
support for IT8212 ide-"raid" controller, hint hint Bart :) and had
the same problem. This fixed it:

libata version 1.02 loaded.
sata_via version 0.20
sata_via(00:0f.0): routed to hard irq line 5
ata1: SATA max UDMA/133 cmd 0xB400 ctl 0xB802 bmdma 0xC400 irq 20
ata2: SATA max UDMA/133 cmd 0xBC00 ctl 0xC002 bmdma 0xC408 irq 20
ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3e01
87:4003 88:407f
ata1: dev 0 ATA, max UDMA/133, 72303840 sectors (lba48)
ata1: dev 0 configured for UDMA/133
ata2: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3e01
87:4003 88:203f
ata2: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
ata2: dev 0 configured for UDMA/100
scsi1 : sata_via
scsi2 : sata_via
  Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.02
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: ATA       Model: WDC WD2500JD-22F  Rev: 1.02
  Type:   Direct-Access                      ANSI SCSI revision: 05
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
Attached scsi disk sdc at scsi2, channel 0, id 0, lun 0
SCSI device sda: 71833096 512-byte hdwr sectors (36779 MB)
 sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
SCSI device sdb: 72303840 512-byte hdwr sectors (37020 MB)
 sdb: sdb1
SCSI device sdc: 488397168 512-byte hdwr sectors (250059 MB)
 sdc: sdc1 < sdc5 sdc6 >

(sda is a real SCSI disk)

Thanks,

// Jarno

Re: [sata] libata update

[Jeff Garzik]

Jarno Paananen wrote:
> Jeff Garzik <jgarzik@pobox.com> writes:
> 
> 
>>Petr Sebor wrote:
>>
>>>Hi Jeff,
>>>I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
>>>sata drive anymore...
>>
>>Does this patch fix it?
> 
> 
> I'm using the 2.4 kernel version (would be using 2.6 if there was
> support for IT8212 ide-"raid" controller, hint hint Bart :) and had
> the same problem. This fixed it:


Sorry to be dumb, but just to clear...  you had the same problem, and 
the patch I posted fixed it?

	Jeff

Re: [sata] libata update

[Jarno Paananen]

Jeff Garzik <jgarzik@pobox.com> writes:

> Jarno Paananen wrote:
>> Jeff Garzik <jgarzik@pobox.com> writes:
>>
>>>Petr Sebor wrote:
>>>
>>>>Hi Jeff,
>>>>I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
>>>>sata drive anymore...
>>>
>>>Does this patch fix it?
>> I'm using the 2.4 kernel version (would be using 2.6 if there was
>> support for IT8212 ide-"raid" controller, hint hint Bart :) and had
>> the same problem. This fixed it:
>
>
> Sorry to be dumb, but just to clear...  you had the same problem, and
> the patch I posted fixed it?

Yes, exactly, sorry for the confusion.

// Jarno

Re: [sata] libata update

[Jeff Garzik]

Petr Sebor wrote:
> Hi Jeff,
> 
> I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
> sata drive anymore...
> 
> I am seeing this:
> -------------------------------------------------------------------
> libata version 1.02 loaded.
> sata_via version 0.20
> sata_via(0000:00:0f.0): routed to hard irq line 11
> ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
> ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
> ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003 
> 88:203f
> ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
> ata1: dev 0 configured for UDMA/100
> scsi0 : sata_via
> ata2: no device found (phy stat 00000000)
> ata2: thread exiting
> scsi1 : sata_via

oh, and are both disks SATA?

Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?

Do you have any special settings like BIOS RAID turned on, that might 
interfere with things?

	Jeff

Re: [sata] libata update

[Petr Sebor]

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Jeff Garzik wrote:

> oh, and are both disks SATA?

Both drives are SATA

> Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?

Nope.

> Do you have any special settings like BIOS RAID turned on, that might 
> interfere with things?

This thing is turned off. (at least I hope so... will check)

I'll try the patch you sent as soon as I reach the machine.

Thanks!

Best regards,
Petr


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Re: [sata] libata update

[Bartlomiej Zolnierkiewicz]

On Wednesday 31 of March 2004 01:16, Jeff Garzik wrote:
> Petr Sebor wrote:
> > Hi Jeff,
> >
> > I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
> > sata drive anymore...
> >
> > I am seeing this:
> > -------------------------------------------------------------------
> > libata version 1.02 loaded.
> > sata_via version 0.20
> > sata_via(0000:00:0f.0): routed to hard irq line 11
> > ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
> > ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
> > ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003
> > 88:203f
> > ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
> > ata1: dev 0 configured for UDMA/100
> > scsi0 : sata_via
> > ata2: no device found (phy stat 00000000)
> > ata2: thread exiting
> > scsi1 : sata_via
>
> oh, and are both disks SATA?
>
> Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?

   Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.00
   Type:   Direct-Access                      ANSI SCSI revision: 05

WD Raptor electronics includes PATA->SATA bridge.

Bartlomiej

Re: [sata] libata update

[Jeff Garzik]

Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 31 of March 2004 01:16, Jeff Garzik wrote:
> 
>>Petr Sebor wrote:
>>
>>>Hi Jeff,
>>>
>>>I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
>>>sata drive anymore...
>>>
>>>I am seeing this:
>>>-------------------------------------------------------------------
>>>libata version 1.02 loaded.
>>>sata_via version 0.20
>>>sata_via(0000:00:0f.0): routed to hard irq line 11
>>>ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
>>>ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
>>>ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003
>>>88:203f
>>>ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
>>>ata1: dev 0 configured for UDMA/100
>>>scsi0 : sata_via
>>>ata2: no device found (phy stat 00000000)
>>>ata2: thread exiting
>>>scsi1 : sata_via
>>
>>oh, and are both disks SATA?
>>
>>Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?
> 
> 
>    Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.00
>    Type:   Direct-Access                      ANSI SCSI revision: 05
> 
> WD Raptor electronics includes PATA->SATA bridge.

Yes, a lot of drives do.

I meant outside the drive, an adapter/bridge the user plugs into the 
device, that allows it to pretend it is a SATA device.

	Jeff

Re: [sata] libata update

[Bartlomiej Zolnierkiewicz]

On Wednesday 31 of March 2004 01:47, Jeff Garzik wrote:
> Bartlomiej Zolnierkiewicz wrote:
> > On Wednesday 31 of March 2004 01:16, Jeff Garzik wrote:
> >>Petr Sebor wrote:
> >>>Hi Jeff,
> >>>
> >>>I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
> >>>sata drive anymore...
> >>>
> >>>I am seeing this:
> >>>-------------------------------------------------------------------
> >>>libata version 1.02 loaded.
> >>>sata_via version 0.20
> >>>sata_via(0000:00:0f.0): routed to hard irq line 11
> >>>ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
> >>>ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
> >>>ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003
> >>>88:203f
> >>>ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
> >>>ata1: dev 0 configured for UDMA/100
> >>>scsi0 : sata_via
> >>>ata2: no device found (phy stat 00000000)
> >>>ata2: thread exiting
> >>>scsi1 : sata_via
> >>
> >>oh, and are both disks SATA?
> >>
> >>Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?
> >
> >    Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.00
> >    Type:   Direct-Access                      ANSI SCSI revision: 05
> >
> > WD Raptor electronics includes PATA->SATA bridge.
>
> Yes, a lot of drives do.
>
> I meant outside the drive, an adapter/bridge the user plugs into the
> device, that allows it to pretend it is a SATA device.

Is there any difference (except cabling and power) ?

Re: [sata] libata update

[Jeff Garzik]

Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 31 of March 2004 01:47, Jeff Garzik wrote:
> 
>>Bartlomiej Zolnierkiewicz wrote:
>>
>>>On Wednesday 31 of March 2004 01:16, Jeff Garzik wrote:
>>>
>>>>Petr Sebor wrote:
>>>>
>>>>>Hi Jeff,
>>>>>
>>>>>I have upgraded from 2.6.3 to 2.6.5-rc3 and can't see the secondary
>>>>>sata drive anymore...
>>>>>
>>>>>I am seeing this:
>>>>>-------------------------------------------------------------------
>>>>>libata version 1.02 loaded.
>>>>>sata_via version 0.20
>>>>>sata_via(0000:00:0f.0): routed to hard irq line 11
>>>>>ata1: SATA max UDMA/133 cmd 0xC400 ctl 0xC802 bmdma 0xD400 irq 20
>>>>>ata2: SATA max UDMA/133 cmd 0xCC00 ctl 0xD002 bmdma 0xD408 irq 20
>>>>>ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003
>>>>>88:203f
>>>>>ata1: dev 0 ATA, max UDMA/100, 488397168 sectors (lba48)
>>>>>ata1: dev 0 configured for UDMA/100
>>>>>scsi0 : sata_via
>>>>>ata2: no device found (phy stat 00000000)
>>>>>ata2: thread exiting
>>>>>scsi1 : sata_via
>>>>
>>>>oh, and are both disks SATA?
>>>>
>>>>Or is the 37G drive a PATA drive on a PATA->SATA adapter (a.k.a. bridge)?
>>>
>>>   Vendor: ATA       Model: WDC WD360GD-00FN  Rev: 1.00
>>>   Type:   Direct-Access                      ANSI SCSI revision: 05
>>>
>>>WD Raptor electronics includes PATA->SATA bridge.
>>
>>Yes, a lot of drives do.
>>
>>I meant outside the drive, an adapter/bridge the user plugs into the
>>device, that allows it to pretend it is a SATA device.
> 
> 
> Is there any difference (except cabling and power) ?

Most drives use the well-known Marvell phy chip, while adapters are a 
bit more random...

	Jeff

Re: [sata] libata update

[Henrik Gustafsson]

(sorry for screwing with the thread, I was not subscribed when I read the 
original post)

The patch seems to work just fine. It's been running for six hours now 
with varying amounts of load and no catastrophes has occurred so far.

Only things are these lines saying 'abnormal status' (which has been there 
all along). I assume the codes mean 'device not present' (which would be 
correct, at least in my case) or something similar, but I don't know for 
sure so I leave it to someone better informed to patch :)

(also, there is the 'Unknown device'-thing in my lspci, but that's neither 
related to libata nor is it a 'real' problem)

Using a Promise FastTrack S150 SX4
Relevant piece of my dmesg, lspci follows (just let me know if you need 
the rest)

// Henrik Gustafsson

libata version 1.02 loaded.
sata_promise version 0.92
ata1: SATA max UDMA/133 cmd 0xE29D7200 ctl 0xE29D7238 bmdma 0x0 irq 10
ata2: SATA max UDMA/133 cmd 0xE29D7280 ctl 0xE29D72B8 bmdma 0x0 irq 10
ata3: SATA max UDMA/133 cmd 0xE29D7300 ctl 0xE29D7338 bmdma 0x0 irq 10
ata4: SATA max UDMA/133 cmd 0xE29D7380 ctl 0xE29D73B8 bmdma 0x0 irq 10
ata1: dev 0 cfg 49:2f00 82:7c6b 83:7f09 84:4003 85:7c69 86:3e01 87:4003 
88:207f
ata1: dev 0 ATA, max UDMA/133, 490234752 sectors (lba48)
ata1: dev 0 configured for UDMA/133
scsi0 : sata_promise
ATA: abnormal status 0x7F on port 0xE29D729C
ata2: thread exiting
scsi1 : sata_promise
ATA: abnormal status 0x7F on port 0xE29D731C
ata3: thread exiting
scsi2 : sata_promise
ATA: abnormal status 0x7F on port 0xE29D739C
ata4: thread exiting
scsi3 : sata_promise
   Vendor: ATA       Model: Maxtor 7Y250M0    Rev: 1.02
   Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB)
SCSI device sda: drive cache: write through
  sda: sda1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0

00:0b.0 RAID bus controller: Promise Technology, Inc.: Unknown device 6622 
(rev 01)
         Subsystem: Promise Technology, Inc.: Unknown device 6622
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR- FastB2B-
         Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
         Latency: 96 (1500ns min, 4500ns max), cache line size 08
         Interrupt: pin A routed to IRQ 10
         Region 0: I/O ports at c400 [size=256]
         Region 1: I/O ports at c800 [size=256]
         Region 2: I/O ports at cc00 [size=256]
         Region 3: Memory at da000000 (32-bit, non-prefetchable) [size=1M]
         Region 4: Memory at da140000 (32-bit, non-prefetchable) [size=32K]
         Expansion ROM at <unassigned> [disabled] [size=64K]
         Capabilities: [60] Power Management version 1
                 Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-

Re: [sata] libata update

[Jeff Garzik]

Henrik Gustafsson wrote:
> (sorry for screwing with the thread, I was not subscribed when I read 
> the original post)
> 
> The patch seems to work just fine. It's been running for six hours now 
> with varying amounts of load and no catastrophes has occurred so far.
> 
> Only things are these lines saying 'abnormal status' (which has been 
> there all along). I assume the codes mean 'device not present' (which 
> would be correct, at least in my case) or something similar, but I don't 
> know for sure so I leave it to someone better informed to patch :)
> 
> (also, there is the 'Unknown device'-thing in my lspci, but that's 
> neither related to libata nor is it a 'real' problem)
> 
> Using a Promise FastTrack S150 SX4
> Relevant piece of my dmesg, lspci follows (just let me know if you need 
> the rest)

Thanks for testing.

Yes, the SX4, unlike the TX2/TX4, does not directly give me access to 
the SATA ports, so I cannot test directly for device presence.  Instead 
I let the normal error handling routines notice the behavior.  I need to 
fix that up, but for now that's an annoying but harmless message.

	Jeff

[sata] libata update

[Jeff Garzik]

A ton of SATA work in the past few weeks, but not a lot terribly new in 
this update.  The update is mainly to rediff against the latest 2.4 and 
2.6 kernels.  Note that this does not include experimental patches. 
Notably absent are

* lba48 (large transfer) requests
* splitting up Promise driver into sata_promise (tx2/tx4) and sata_sx4 
(sx4) drivers.
* adding better flush-cache / writeback caching support

The above are all experimental patches I have locally.

Finally, per user requests, I have started posting the associated 
changelog as well.

BK repositories:
	http://gkernel.bkbits.net/libata-2.[46]

2.6.x patch and changelog:
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc3-libata1.patch.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc3-libata1.log

2.4.x patch and changelog:
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.26-rc1-libata2.patch.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.26-rc1-libata2.log

Drivers for SATA-2 controllers have been in development, and should be 
making their appearance soon.

[sata] libata update

[Jeff Garzik]

Small update, to fix a couple important 2.4-only bugs:
* SMP kernels would lock up during probing
* Hardware delays were incorrect, due to HZ=100

2.6.x kernels are not affected.

Also included is a fix for sata_via device-1 detection, which does 
affect 2.6.x kernels.


BK repositories:
	http://gkernel.bkbits.net/libata-2.[46]

2.4.x patch and log:
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.26-rc1-libata3.patch.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.26-rc1-libata3.log

2.6.x patch and log:
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc3-libata2.patch.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.5-rc3-libata2.log

Re: [sata] libata update

[Erik Andersen]

On Wed Mar 31, 2004 at 04:02:43PM -0500, Jeff Garzik wrote:
> 
> Small update, to fix a couple important 2.4-only bugs:
> * SMP kernels would lock up during probing
> * Hardware delays were incorrect, due to HZ=100

I have a Soyo P4 motherboard with built in Intel ICH5, Sil, and I have
"IDE + SATA" enabled in the bios, presumably meaning the ICH5 is in
combined mode.  I usually boot with my rootfs on a ordinary IDE drive
(pata on ICH5 ide0), a cdrom (pata on ICH5 ide1) and a sata drive (sata1
on ICH5), which has all been working nicely.  Many thanks.  :-)  Here is
what I usually see from the ICH5:

    Uniform Multi-Platform E-IDE driver Revision: 7.00beta5-2.4
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    ICH5: IDE controller at PCI slot 00:1f.1
    ICH5: chipset revision 2
    ICH5: not 100% native mode: will probe irqs later
	ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
	ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
    hda: WDC WD2000JB-32EVA0, ATA DISK drive
    hdc: SONY DVD RW DRU-510A, ATAPI CD/DVD-ROM drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    ide1 at 0x170-0x177,0x376 on irq 15
    hda: attached ide-disk driver.
    hda: 390721968 sectors (200049 MB) w/8192KiB Cache, CHS=24321/255/63, UDMA(100)
    Partition check:
     hda: hda1 hda2
    SCSI subsystem driver Revision: 1.00
    libata version 1.02 loaded.
    ata_piix version 1.02
    PCI: Setting latency timer of device 00:1f.2 to 64
    ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 18
    ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 18
    ata1: dev 0 cfg 49:2f00 82:7c6b 83:7f09 84:4003 85:7c69 86:3e01 87:4003 88:207f
    ata1: dev 0 ATA, max UDMA/133, 398297088 sectors (lba48)
    ata1: dev 0 configured for UDMA/133
    ata2: SATA port has no device.
    ata2: thread exiting
    scsi0 : ata_piix
    scsi1 : ata_piix
      Vendor: ATA       Model: Maxtor 6Y200M0    Rev: 1.02
      Type:   Direct-Access                      ANSI SCSI revision: 05

Yesterday while doing some testing, I made a CD with the same kernel on
it as shown above, i.e. latest 2.4.26-rc1 + the current
2.4.26-rc1-libata3 patch.  I then unplugged the power connector to my
usual rootfs drive (the WDC WD2000JB on ide0) to make sure I wouldn't
screw it up ;-).  

Booting from CD (the SONY on ide1) with only the Maxtor 6Y200M0 (on the
ICH5 sata1), the libata driver wedged solid on bootup.  After printing

    ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 18
    ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 18

the box was dead dead dead.  I can't test this setup with the bios set
to SATA only, since I don't own any SATA cdrom drives.  Simply plugging
the WDC WD2000JB on ide0 back in allowed the system to boot normally.
As nearly as I can tell, one has to have a pata drive installed or the
ata_piix driver will wedge solid.

 -Erik

--
Erik B. Andersen             http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--

[sata] libata update

[Jeff Garzik]

I'm slowly and (somewhat) quietly cleaning up the libata internals. 
This is allow several interesting features to appear in rapid 
succession: hotplug, random taskfile submission (SMART!), and ATAPI.

This is the first step in cleaning up the internals.  Nothing terribly 
interesting for existing users, except for one key change:

Promise SATA driver has been split.  Promise TX2/TX4 SATA remains in 
"sata_promise".  The very-different Promise SX4 support is now found in 
a new driver "sata_sx4".  Promise users, please test and make sure I 
didn't break anything.  It seems to work on my Promise SATA h/w.


Linux 2.6.x patch and changelog:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.6-rc2-bk3-libata1.patch.bz2
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.6-rc2-bk3-libata1.log

Linux 2.4.x patch and changelog:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.27-pre1-libata1.patch.bz2
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.4.27-pre1-libata1.log

BitKeeper repositories:
	http://gkernel.bkbits.net/libata-2.[46]

Re: [sata] libata update

[J. Ryan Earl]

Jeff Garzik wrote:

> interesting features to appear in rapid succession: hotplug, random 
> taskfile submission (SMART!), and ATAPI.

Nice.  Many will love you for hotplug.

-ryan