The following changes since commit aa29141d84d58171c2d219f0a4b599bd76fb2e37:
Merge remote-tracking branch 'kraxel/CVE-2011-1751' into staging (2011-05-25
07:04:13 -0500)
are available in the git repository at:
git://github.com/bonzini/qemu.git scsi.2
This series includes the following improvements to the SCSI subsystem:
1) introduction of SCSIBusOps that generalize the existing
command_complete callback;
2) widespread use of the SCSIRequest abstraction, with simpler memory
management (refcounting) and with various common idioms converted into
simple C functions instead of duplicating them all over the place;
3) support for autosense.
Some patches are from Hannes Reinecke's megasas patchset posted last
November, forward ported and applied to the new vSCSI controller as
well. Most have been acked by Christoph; I fixed all issues he
pointed out in the others.
I already planned the following two series too:
1) adding support for zerocopy. Previous attempts were rejected
because they were applied to real devices (thus making for example an
IOMMU hard to impossible). However, for PV devices zerocopy should be
uncontroversial---and it is a must to get competitive performance WRT
virtio-blk. I'll use vmw-pvscsi for the first implementation and for
benchmarking.
2) adding support for multiple LUNs; see recently posted RFC for this.
After this I'll work on the virtio-scsi device model.
Testing:
- RHEL6.1 install complete to scsi-disk with lsi, from scsi-generic CD
- iozone run with lsi on scsi-disk target
- RHEL6.1 install to usb-msd from IDE CD is too slow, but it manages to
format /boot in ~10 minutes with or without the patches
- RHEL6.1 install with vscsi with scsi-disk CD and installation disk
hung at the same place with or without the series, perhaps it was
just me being impatient.
esp is only compile tested.
Please review and merge.
v4->v5:
SCSIBusOps now const-ified. Added braces here and there.
Added patch 5.
v3->v4:
renamed scsi_req_kick to scsi_req_continue. Changed SCSIBusOps to
pointer. Removed scsi_req_free, merged it into scsi_req_unref.
Added head comments for some functions. Renamed arguments to
HBA callbacks. Added patches 23 and 24
v2->v3:
included fixes for Jonathan Nieder's recently reported bug
v1->v2:
rebased, added patch 21
Hannes Reinecke (4):
scsi: Use 'SCSIRequest' directly
scsi: Update sense code handling
scsi: Implement 'get_sense' callback
scsi-disk: add data direction checking
Paolo Bonzini (21):
scsi: add tracing of scsi requests
scsi-generic: Remove bogus double complete
scsi: introduce scsi_req_data
scsi: introduce SCSIBusOps
scsi-generic: do not use a stale aiocb
scsi: reference-count requests
lsi: extract lsi_find_by_tag
scsi: commonize purging requests
scsi: introduce scsi_req_abort
scsi: introduce scsi_req_cancel
scsi: use scsi_req_complete
scsi: do not call send_command directly
scsi: introduce scsi_req_new
scsi: introduce scsi_req_continue
scsi: introduce scsi_req_get_buf
scsi: make write_data return void
scsi-generic: Handle queue full
esp: rename sense to status
scsi: split command_complete callback in two
scsi: rename arguments to the new callbacks
scsi: ignore LUN field in the CDB
hw/esp.c | 119 ++++++++++++++----------
hw/lsi53c895a.c | 200 ++++++++++++++++++++++++---------------
hw/scsi-bus.c | 220 +++++++++++++++++++++++++++++++++++++++----
hw/scsi-disk.c | 271 ++++++++++++++++++++++-------------------------------
hw/scsi-generic.c | 223 +++++++++++++++++++++-----------------------
hw/scsi.h | 91 ++++++++++++++----
hw/spapr_vscsi.c | 187 ++++++++++++++++++++----------------
hw/usb-msd.c | 120 ++++++++++++++----------
trace-events | 8 ++
9 files changed, 866 insertions(+), 573 deletions(-)
--
1.7.4.4
