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# Date Author Comment
42741212 05/26/2011 01:14 pm Paolo Bonzini

scsi: make write_data return void

The return value is unused anyway.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

c6df7102 05/26/2011 01:14 pm Paolo Bonzini

scsi: split command_complete callback in two

Signed-off-by: Paolo Bonzini <>
Cc: Christoph Hellwig <>

a1f0cce2 05/26/2011 01:14 pm Hannes Reinecke

scsi: Update sense code handling

The SCSI spec has a quite detailed list of sense codes available.
It even mandates the use of specific ones for some failure cases.
The current implementation just has one type of generic error
which is actually a violation of the spec in certain cases....

fc4f0754 05/26/2011 01:14 pm Paolo Bonzini

scsi: do not call send_command directly

Move the common part of scsi-disk.c and scsi-generic.c to the SCSI layer.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

43a2b339 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_new

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

ad3376cc 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_continue

Signed-off-by: Paolo Bonzini <>
Cc: Christoph Hellwig <>

0c34459b 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_get_buf

... and remove some SCSIDevice variables or fields that now become unused.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

74382217 05/26/2011 01:14 pm Hannes Reinecke

scsi: Implement 'get_sense' callback

The get_sense callback copies existing sense information into
the provided buffer. This is required if sense information
should be transferred together with the command response.

Signed-off-by: Hannes Reinecke <>...

ad2d30f7 05/26/2011 01:14 pm Paolo Bonzini

scsi: reference-count requests

With the next patch, a device may hold SCSIRequest for an indefinite
time. Split a rather big patch, and protect against access errors,
by reference counting them.

There is some ugliness in scsi_send_command implementation due to...

5c6c0e51 05/26/2011 01:14 pm Hannes Reinecke

scsi: Use 'SCSIRequest' directly

Currently the SCSIRequest structure is abstracted away and cannot accessed
directly from the driver. This requires the handler to do a lookup on
an abstract 'tag' which identifies the SCSIRequest structure.

With this patch the SCSIRequest structure is exposed to the driver. This...

c557e889 05/26/2011 01:14 pm Paolo Bonzini

scsi: commonize purging requests

The code for canceling requests upon reset is already the same. Clean
it up and move it to scsi-bus.c.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

19d110ab 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_abort

This covers the case of canceling a request's I/O and still
completing it.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

94d3f98a 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_cancel

This is for when the request must be dropped in the void,
but still memory should be freed. To this end, the devices
register a second callback in SCSIBusOps.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

ab9adc88 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce scsi_req_data

This abstracts calling the command_complete callback, reducing churn
in the following patches.

Signed-off-by: Paolo Bonzini <>
Reviewed-by: Christoph Hellwig <>

cfdc1bb0 05/26/2011 01:14 pm Paolo Bonzini

scsi: introduce SCSIBusOps

There are more operations than a SCSI bus can handle, besides completing
commands. One example, which this series will introduce, is cleaning up
after a request is cancelled.

More long term, a "SCSI bus" can represent the LUNs attached to a...

27d6bf40 01/31/2011 11:42 am Markus Armbruster

blockdev: Fix regression in -drive if=scsi,index=N

Before commit 622b520f, index=12 meant bus=1,unit=5.

Since the commit, it means bus=0,unit=12. The drive is created, but
not the guest device. That's because the controllers we use with
if=scsi drives (lsi53c895a and esp) support only 7 units, and...

2d1fd261 01/24/2011 10:39 pm Stefan Hajnoczi

scsi: Allow scsi_bus_legacy_add_drive() to set removable bit

scsi-disk devices may wish to override the removable bit. Add support
for a qdev property on SCSI devices. This is will be used by usb-msd.

Signed-off-by: Stefan Hajnoczi <>...

a6d96eb7 11/25/2010 01:19 pm Hannes Reinecke

scsi: Move sense handling into the driver

The current sense handling in scsi-bus is only used by the
scsi-disk driver; the scsi-generic driver is using its own.
So we should move the current sense handling into the
scsi-disk driver.

Signed-off-by: Hannes Reinecke <>...

622b520f 11/25/2010 12:57 pm Hannes Reinecke

scsi: Increase the number of possible devices

The SCSI parallel interface has a limit of 8 devices, but
not the SCSI stack in general. So we should be removing the
hard-coded limit and use MAX_SCSI_DEVS instead.
And we only need to scan those devices which are allocated...

e8637c90 07/22/2010 06:52 am Jan Kiszka

scsi: Dequeue requests before invoking completion callback

The request completion callback of the LSI controller may start the next
request that can use the same tag as the completed one. As the latter is
still enqueued at that point, scsi_send_command will complain about the...

f8b6cc00 07/02/2010 02:18 pm Markus Armbruster

qdev: Decouple qdev_prop_drive from DriveInfo

Make the property point to BlockDriverState, cutting out the DriveInfo
middleman. This prepares the ground for block devices that don't have
a DriveInfo.

Currently all user-defined ones have a DriveInfo, because the only way...

fa66b909 07/02/2010 02:18 pm Markus Armbruster

scsi: scsi_bus_legacy_handle_cmdline() can fail, fix callers

None of its callers checks for failure. scsi_hot_add() can crash
because of that:

(qemu) drive_add 4 if=scsi,format=host_device,file=/dev/sg1
scsi-generic: scsi generic interface too old
Segmentation fault (core dumped)...

428c149b 02/11/2010 12:53 am Christoph Hellwig

block: add topology qdev properties

Add three new qdev properties to export block topology information to
the guest. This is needed to get optimal I/O alignment for RAID arrays
or SSDs.

The options are:

- physical_block_size to specify the physical block size of the device,...
ec766865 12/03/2009 05:41 pm Gerd Hoffmann

scsi: add scsi_req_print()

Handy for debugging.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

97a06435 12/03/2009 05:41 pm Gerd Hoffmann

scsi: add xfer mode

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

37659e51 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move sense to SCSIDevice, create SCSISense struct.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

251882b7 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move dinfo to SCSIDevice

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

ed3a34a3 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move status to SCSIRequest.

Also add and use the scsi_req_complete() helper function for calling the
completion callback.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

1e37607b 12/03/2009 05:41 pm Gerd Hoffmann

scsi: add/fix header protection.

Also delete the leftover and unused scsi-disk.h file.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

4c41d2ef 12/03/2009 05:41 pm Gerd Hoffmann

scsi: create common SCSIRequest structure.

Rename the SCSIRequest structs in scsi-disk.c and scsi-generic.c to
SCSIDiskReq and SCSIGenericReq. Create a SCSIRequest struct and move
the common elements over.

Signed-off-by: Gerd Hoffmann <>...

9af99d98 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move request lists to QTAILQ.

Changes: * Move from open-coded lists to QTAILQ macros. * Move the struct elements to the common data structures
(SCSIDevice + SCSIRequest). * Drop free request pools. * Fix request cleanup in the destroy callback....

89b08ae1 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move SCSIRequest management to common code.

Create generic functions to allocate, find and release SCSIRequest
structs. Make scsi-disk and scsi-generic use them.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

29362ebe 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move scsi command buffer from SCSIGenericReq to SCSIRequest.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

b07995e3 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move blocksize from SCSIGenericState to SCSIDevice

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

91376656 12/03/2009 05:41 pm Gerd Hoffmann

scsi: move type from SCSIGenericState to SCSIDevice

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

2ec749cb 12/03/2009 05:41 pm Gerd Hoffmann

scsi: add request parsing helpers to common code.

Add helper functions for scsi request parsing to common code. Getting
command length, transfer size, and linear block address is handled.

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

1cd3af54 11/09/2009 04:43 pm Gerd Hoffmann

scsi: move scsi.h -> esp.h

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

43b443b6 11/09/2009 04:43 pm Gerd Hoffmann

scsi: move scsi-disk.h -> scsi.h

Signed-off-by: Gerd Hoffmann <>
Signed-off-by: Anthony Liguori <>

c227f099 10/02/2009 12:12 am Anthony Liguori

Revert "Get rid of _t suffix"

In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem. Something
like this must be presented on the list first so people can provide input...

99a0949b 10/01/2009 09:45 pm malc

Get rid of _t suffix

Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <>

cfb9de9c 05/15/2009 12:35 am Paul Brook

ESP SCSI qdev conversion

Signed-off-by: Paul Brook <>

5d20fa6b 04/09/2008 07:32 pm blueswir1

ESP: Add it_shift parameter (Hervé Poussineau)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4186 c046a42c-6fe2-441c-8c8c-71466251a162

8b17de88 03/02/2008 10:48 am blueswir1

Let ESP SCSI adapter to be usable outside sun4m (Herv�oussineau)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4007 c046a42c-6fe2-441c-8c8c-71466251a162