On Wed, 2010-11-24 at 11:31 +0200, Boaz Harrosh wrote: > On 11/24/2010 10:44 AM, Nicholas A. Bellinger wrote: > > From: Nicholas Bellinger <n...@linux-iscsi.org> > > > > <Quick resend with proper subject> > > > > Greetings QEMU SCSI / BLOCK folks, > > > > This series adds rebased support for the hw/scsi-bsg.c backstore for > > scsi-bus > > compatible HBA emulation in QEMU-KVM on Linux hosts supporting the BSG > > driver > > against current mainline qemu-kvm.git/master code. > > > > This patch is available from the scsi-bsg branch in the megasas/scsi > > friendly QEMU-KVM tree at: > > > > http://git.kernel.org/?p=virt/kvm/nab/qemu-kvm.git;a=shortlog;h=refs/heads/megasas-upstream-v1 > > > > which includes Hannes's recent patch series posted recently against > > mainline v0.13.0 here: > > > > Re: [Qemu-devel] [PATCH] Megasas HBA emulation and SCSI update v.2 > > http://lists.gnu.org/archive/html/qemu-devel/2010-11/msg02018.html > > > > Note that in order for BSG I/O to function using vectored AIO a kernel > > patch to > > linux/block/bsg.c:bsg_map_hdr() is currently required running on a bit > > paired > > user/kernel enviroment. The kernel patch in question is here: > > > > http://marc.info/?l=linux-scsi&m=127649585524598&w=2 > > > > OK I've looked at this patch. I have sent such a patch my self and Pete > Wyckoff > and other people have sent it as well. I could not find in the URL above any > response to your patch. Where there any?
Hi Boaz, I found Tomo-san's follow here: http://ns3.spinics.net/lists/linux-scsi/msg44266.html > > Thanks > Boaz > > > The first three patches involve updating block code to support the BSG > > backstore for scsi-bsg. > > > > The forth patch adds the minor changes to hw/scsi-bus.c and hw/scsi-disk.c > > in order to > > function with scsi-bsg. > > > > And the fifth patch adds the main hw/scsi-bsg.c logic necessary to run the > > new struct > > SCSIDeviceInfo and for BSG AIO using struct iovec and paio_submit_len() to > > function. > > The scsi-bsg.c code has been refactored to follow the modern > > SCSIDeviceInfo->alloc_req_iov() > > and incoming struct iovec * memory for underlying SCSIRequest SGLs > > > > So far this has been tested with v2 8708EM2 HBA Emulation on 0.13.0 on a > > .37-rc2 > > KVM host with TCM_Loop FILEIO backstores into a Debian Lenny v2.6.26 x86_64 > > KVM guest with XFS filesystem mounts. > > > > Signed-off-by: Nicholas A. Bellinger <n...@linux-iscsi.org> > > > > Nicholas Bellinger (5): > > block: Add top level BSG support > > block: Add BSG qemu_open() in block/raw.c:raw_open() > > block: Add paio_submit_len() non sector sized AIO > > scsi: Add BSG checks into scsi-bus and scsi-disk > > scsi-bsg: Add initial support for BSG based SCSIDeviceInfo > > > > Makefile.objs | 2 +- > > block.c | 7 +- > > block.h | 1 + > > block/raw-posix-aio.h | 3 + > > block/raw-posix.c | 65 +++++- > > block/raw.c | 21 ++ > > block_int.h | 6 + > > hw/scsi-bsg.c | 720 > > +++++++++++++++++++++++++++++++++++++++++++++++++ > > hw/scsi-bus.c | 3 +- > > hw/scsi-disk.c | 5 + > > posix-aio-compat.c | 29 ++ > > 11 files changed, 855 insertions(+), 7 deletions(-) > > create mode 100644 hw/scsi-bsg.c > > >
