summaryrefslogtreecommitdiff
path: root/include/hw/virtio/virtio-scsi.h
AgeCommit message (Collapse)AuthorFilesLines
2015-02-11vhost-scsi: add a property for bootingGonglei1-0/+1
Because Qemu only accept an wwpn argument for vhost-scsi, we cannot assign a tpgt. That's say tpg is transparent for Qemu, Qemu doesn't know which tpg can boot, but vhost-scsi driver module doesn't know too for one assigned wwpn. At present, we assume that the first tpg can boot only, and add a boot_tpgt property that defaults to 0. Of course, people can pass a valid value by qemu command line. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-12virtio-scsi: Fix comment for VirtIOSCSIReqFam Zheng1-1/+2
The cdb is not zeroed by virtio_scsi_init_req, so fix the misleading comment. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23virtio-scsi: dataplane: stop trying on notifier errorCornelia Huck1-0/+1
There's no use to constantly trying to enable dataplane if we failed to set up guest or host notifiers, so fence it off in that case. We'll try again if the device is reinitialized. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23virtio-scsi-dataplane: Add op blockerFam Zheng1-0/+1
We need this to protect dataplane thread from race conditions with block jobs until the latter is made dataplane-safe. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Handle TMF request cancellation asynchronouslyFam Zheng1-2/+7
For VIRTIO_SCSI_T_TMF_ABORT_TASK and VIRTIO_SCSI_T_TMF_ABORT_TASK_SET, use scsi_req_cancel_async to start the cancellation. Because each tmf command may cancel multiple requests, we need to use a counter to track the number of remaining requests we still need to wait for. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Batched prepare for cmd reqsFam Zheng1-0/+4
Queue the popped requests while calling virtio_scsi_handle_cmd_req_prepare(), then submit them after all prepared. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Two stages processing of cmd requestFam Zheng1-1/+2
Mechanical change, in preparation for bdrv_io_plug/bdrv_io_unplug. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add migration state notifier for dataplane codeFam Zheng1-0/+2
Similar to virtio-blk-dataplane, we stop the iothread while migration starts and restart it when migration finishes. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi-dataplane: Code to run virtio-scsi on iothreadFam Zheng1-0/+19
This implements the core part of dataplane feature of virtio-scsi. A few fields are added in VirtIOSCSICommon to maintain the dataplane status. These fields are managed by a new source file: virtio-scsi-dataplane.c. Most code in this file will run on an iothread, unless otherwise commented as in a global mutex context, such as those functions to start, stop and setting the iothread property. Upon start, we set up guest/host event notifiers, in a same way as virtio-blk does. The handlers then pop request from vring and call into virtio-scsi.c functions to process it. So we need to make sure make all those called functions work with iothread, too. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add VirtIOSCSIVring in VirtIOSCSIReqFam Zheng1-1/+14
Move VirtIOSCSIReq to header and add one field "vring" as a wrapper structure of Vring, VirtIOSCSIVring. This is necessary for coming dataplane code that runs uses vring on iothread. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add 'iothread' property to virtio-scsiFam Zheng1-0/+1
Similar to this property in virtio-blk for dataplane, add it as a QOM link in virtio-scsi and an alias in virtio-scsi-pci and virtio-scsi-ccw, in order to assign an iothread to the device. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Make virtio_scsi_push_event publicFam Zheng1-0/+2
Later this will be called by dataplane code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Make virtio_scsi_free_req publicFam Zheng1-0/+1
To share with dataplane code later. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Make virtio_scsi_init_req publicFam Zheng1-0/+1
To share with datplane code later. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Split virtio_scsi_handle_ctrl_req from virtio_scsi_handle_ctrlFam Zheng1-0/+1
To share with dataplane code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Split virtio_scsi_handle_cmd_req from virtio_scsi_handle_cmdFam Zheng1-0/+36
This is the "common part" to handle one cmd request. Refactor out for later usage of dataplane iothread code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-07-14virtio-scsi: fix with -M pc-i440fx-2.0Paolo Bonzini1-0/+2
Right now starting a machine with virtio-scsi and a <= 2.0 machine type fails with: qemu-system-x86_64: -device virtio-scsi-pci: Property .any_layout not found This is because the any_layout bit was actually never set after virtio-scsi was changed to support arbitrary layout for virtio buffers. (This was just a cleanup and a preparation for virtio 1.0; no guest actually checks the bit, but the new request parsing algorithms are tested even with old guest). Reported-by: David Gilbert <dgilbert@redhat.com> Reviewed-by: David Gilbert <dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-07-06virtio: move common virtio properties to bus class deviceMing Lei1-1/+0
The two common virtio features can be defined per bus, so move all into bus class device to make code more clean. As discussed with cornelia, s390-virtio-blk doesn't support the two features at all, so keep s390-virtio as it. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> #for s390 ccw Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: rebase and resolve conflicts
2014-06-19virtio-scsi: define dummy handle_output for vhost-scsi vqsMing Lei1-1/+6
vhost userspace needn't to handle vq's notification from guest, so define dummy handle_output callback for all vqs of vhost-scsi. In some corner cases(such as when handling vq's reset from VM), virtio-pci still trys to handle pending virtio-scsi events, then object check failure inside virtio_scsi_handle_event() for vhost-scsi can be triggered. The issue can be reproduced by 'rmmod virtio-scsi', 'system sleep' or reboot inside VM. Cc: qemu-stable@nongnu.org Cc: Anthony Liguori <aliguori@amazon.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-18virtio-scsi: add support for the any_layout featurePaolo Bonzini1-3/+1
Store the request and response headers by value, and let virtio_scsi_parse_req check that there is only one of datain and dataout. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-12-09virtio: Convert exit to unrealizeAndreas Färber1-1/+1
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-12-09virtio-scsi: Convert to QOM realizeAndreas Färber1-1/+1
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-12-09virtio-scsi: switch exit callback to VirtioDeviceClassPaolo Bonzini1-1/+1
This ensures hot-unplug is handled properly by the proxy, and avoids leaking bus_name which is freed by virtio_device_exit. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-03virtio-scsi: fix the command line compatibility.KONRAD Frederic1-1/+0
The bus name is wrong since the refactoring. This keeps the behaviour of the command line. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1367330931-12994-6-git-send-email-fred.konrad@greensocs.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-19vhost-scsi: new device supporting the tcm_vhost Linux kernel moduleNicholas Bellinger1-0/+2
The WWPN specified in configfs is passed to "-device vhost-scsi-pci". The tgpt field of the SET_ENDPOINT ioctl is obsolete now, so it is not available from the QEMU command-line. Instead, I hardcode it to zero. Changes in Patch-v2: - Add vhost_scsi_get_features() in order to determine feature bits supports by host kernel (mst + nab) - Re-enable usage of DEFINE_VIRTIO_COMMON_FEATURES, and allow EVENT_IDX to be disabled by host in vhost_scsi_get_features() - Drop unused hotplug bit in DEFINE_VHOST_SCSI_PROPERTIES Changes in Patch-v1: - Set event_idx=off by default (nab, thanks asias) - Disable hotplug feature bit for v3.9 tcm_vhost kernel code, need to re-enable in v3.10 (nab) - Update to latest qemu.git/master HEAD Changes in WIP-V3: - Drop ioeventfd vhost_scsi_properties (asias, thanks stefanha) - Add CONFIG_VHOST_SCSI (asias, thanks stefanha) - Add hotplug feature bit Changes in WIP-V2: - Add backend guest masking support (nab) - Bump ABI_VERSION to 1 (nab) - Set up set_guest_notifiers (asias) - Set up vs->dev.vq_index (asias) - Drop vs->vs.vdev.{set,clear}_vhost_endpoint (asias) - Drop VIRTIO_CONFIG_S_DRIVER check in vhost_scsi_set_status (asias) Howto: Use the latest seabios, at least commit b44a7be17b git clone git://git.seabios.org/seabios.git make cp out/bios.bin /usr/share/qemu/bios.bin qemu -device vhost-scsi-pci,wwpn=naa.6001405bd4e8476d,event_idx=off ... Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Asias He <asias@redhat.com> [ Rebase on top of VirtIOSCSICommon patch, fix bugs in feature negotiation and irqfd masking - Paolo ] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-19virtio-scsi: create VirtIOSCSICommonPaolo Bonzini1-4/+129
This patch refactors existing virtio-scsi code into VirtIOSCSICommon in order to allow virtio_scsi_init_common() to be used by both internal virtio_scsi_init() and external vhost-scsi-pci code. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Asias He <asias@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15virtio: fix broken aliases.KONRAD Frederic1-1/+1
This fix the broken aliases, by renaming the devices. So: * virtio-blk => virtio-blk-device. * virtio-balloon => virtio-balloon-device. * virtio-scsi => virtio-scsi-device. All virtio-*-pci, virtio-*-s390, virtio-*-ccw didn't change. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1365501888-14602-1-git-send-email-fred.konrad@greensocs.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-08hw: move headers to include/Paolo Bonzini1-0/+66
Many of these should be cleaned up with proper qdev-/QOM-ification. Right now there are many catch-all headers in include/hw/ARCH depending on cpu.h, and this makes it necessary to compile these files per-target. However, fixing this does not belong in these patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-13 12:18:19 +0000