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scsi: make write_data return void
The return value is unused anyway.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>Reviewed-by: Christoph Hellwig <hch@lst.de>
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 errorwhich is actually a violation of the spec in certain cases....
scsi: do not call send_command directly
Move the common part of scsi-disk.c and scsi-generic.c to the SCSI layer.
scsi: introduce scsi_req_new
scsi: introduce scsi_req_continue
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>Cc: Christoph Hellwig <hch@lst.de>
scsi: introduce scsi_req_get_buf
... and remove some SCSIDevice variables or fields that now become unused.
scsi: Implement 'get_sense' callback
The get_sense callback copies existing sense information intothe provided buffer. This is required if sense informationshould be transferred together with the command response.
Signed-off-by: Hannes Reinecke <hare@suse.de>...
scsi: reference-count requests
With the next patch, a device may hold SCSIRequest for an indefinitetime. 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...
scsi: Use 'SCSIRequest' directly
Currently the SCSIRequest structure is abstracted away and cannot accesseddirectly from the driver. This requires the handler to do a lookup onan abstract 'tag' which identifies the SCSIRequest structure.
With this patch the SCSIRequest structure is exposed to the driver. This...
scsi: commonize purging requests
The code for canceling requests upon reset is already the same. Cleanit up and move it to scsi-bus.c.
scsi: introduce scsi_req_abort
This covers the case of canceling a request's I/O and stillcompleting it.
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 devicesregister a second callback in SCSIBusOps.
scsi: introduce scsi_req_data
This abstracts calling the command_complete callback, reducing churnin the following patches.
scsi: introduce SCSIBusOps
There are more operations than a SCSI bus can handle, besides completingcommands. One example, which this series will introduce, is cleaning upafter a request is cancelled.
More long term, a "SCSI bus" can represent the LUNs attached to a...
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, butnot the guest device. That's because the controllers we use withif=scsi drives (lsi53c895a and esp) support only 7 units, and...
scsi: Allow scsi_bus_legacy_add_drive() to set removable bit
scsi-disk devices may wish to override the removable bit. Add supportfor a qdev property on SCSI devices. This is will be used by usb-msd.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>...
scsi: Move sense handling into the driver
The current sense handling in scsi-bus is only used by thescsi-disk driver; the scsi-generic driver is using its own.So we should move the current sense handling into thescsi-disk driver.
scsi: Increase the number of possible devices
The SCSI parallel interface has a limit of 8 devices, butnot the SCSI stack in general. So we should be removing thehard-coded limit and use MAX_SCSI_DEVS instead.And we only need to scan those devices which are allocated...
scsi: Dequeue requests before invoking completion callback
The request completion callback of the LSI controller may start the nextrequest that can use the same tag as the completed one. As the latter isstill enqueued at that point, scsi_send_command will complain about the...
qdev: Decouple qdev_prop_drive from DriveInfo
Make the property point to BlockDriverState, cutting out the DriveInfomiddleman. This prepares the ground for block devices that don't havea DriveInfo.
Currently all user-defined ones have a DriveInfo, because the only way...
scsi: scsi_bus_legacy_handle_cmdline() can fail, fix callers
None of its callers checks for failure. scsi_hot_add() can crashbecause of that:
(qemu) drive_add 4 if=scsi,format=host_device,file=/dev/sg1scsi-generic: scsi generic interface too oldSegmentation fault (core dumped)...
block: add topology qdev properties
Add three new qdev properties to export block topology information tothe guest. This is needed to get optimal I/O alignment for RAID arraysor SSDs.
The options are:
- physical_block_size to specify the physical block size of the device,...
scsi: add scsi_req_print()
Handy for debugging.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
scsi: add xfer mode
scsi: move sense to SCSIDevice, create SCSISense struct.
scsi: move dinfo to SCSIDevice
scsi: move status to SCSIRequest.
Also add and use the scsi_req_complete() helper function for calling thecompletion callback.
scsi: add/fix header protection.
Also delete the leftover and unused scsi-disk.h file.
scsi: create common SCSIRequest structure.
Rename the SCSIRequest structs in scsi-disk.c and scsi-generic.c toSCSIDiskReq and SCSIGenericReq. Create a SCSIRequest struct and movethe common elements over.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>...
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....
scsi: move SCSIRequest management to common code.
Create generic functions to allocate, find and release SCSIRequeststructs. Make scsi-disk and scsi-generic use them.
scsi: move scsi command buffer from SCSIGenericReq to SCSIRequest.
scsi: move blocksize from SCSIGenericState to SCSIDevice
scsi: move type from SCSIGenericState to SCSIDevice
scsi: add request parsing helpers to common code.
Add helper functions for scsi request parsing to common code. Gettingcommand length, transfer size, and linear block address is handled.
scsi: move scsi.h -> esp.h
scsi: move scsi-disk.h -> scsi.h
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. Somethinglike this must be presented on the list first so people can provide input...
Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the timebeing.
Signed-off-by: malc <av1474@comtv.ru>
ESP SCSI qdev conversion
Signed-off-by: Paul Brook <paul@codesourcery.com>
ESP: Add it_shift parameter (Hervé Poussineau)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4186 c046a42c-6fe2-441c-8c8c-71466251a162
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