From 06b5abbd2009105da861175bc7cde4702c55320c Mon Sep 17 00:00:00 2001 Message-Id: <06b5abbd2009105da861175bc7cde4702c55320c.1350309834.git.minovotn@redhat.com> In-Reply-To: <14b740b7e3fbafdbfe2e6a302f51d6aa4fa96bf7.1350309834.git.minovotn@redhat.com> References: <14b740b7e3fbafdbfe2e6a302f51d6aa4fa96bf7.1350309834.git.minovotn@redhat.com> From: Paolo Bonzini Date: Fri, 12 Oct 2012 16:22:46 +0200 Subject: [PATCH 14/17] virtio-scsi: report parameter change events RH-Author: Paolo Bonzini Message-id: <1350058967-27351-10-git-send-email-pbonzini@redhat.com> Patchwork-id: 43065 O-Subject: [RHEL 6.4 qemu-kvm PATCH v2 09/10] virtio-scsi: report parameter change events Bugzilla: 808660 RH-Acked-by: Markus Armbruster RH-Acked-by: Laszlo Ersek RH-Acked-by: Orit Wasserman Bugzilla: 808660 Signed-off-by: Paolo Bonzini (cherry picked from commit feda01e40f101956021077ad5c587519410d2073) --- hw/virtio-scsi.c | 16 ++++++++++++++++ 1 file modificato, 16 inserzioni(+) Signed-off-by: Michal Novotny --- hw/virtio-scsi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c index c2c36c1..fd9dae8 100644 --- a/hw/virtio-scsi.c +++ b/hw/virtio-scsi.c @@ -28,6 +28,7 @@ /* Feature Bits */ #define VIRTIO_SCSI_F_INOUT 0 #define VIRTIO_SCSI_F_HOTPLUG 1 +#define VIRTIO_SCSI_F_CHANGE 2 /* Response codes */ #define VIRTIO_SCSI_S_OK 0 @@ -64,6 +65,7 @@ #define VIRTIO_SCSI_T_NO_EVENT 0 #define VIRTIO_SCSI_T_TRANSPORT_RESET 1 #define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 +#define VIRTIO_SCSI_T_PARAM_CHANGE 3 /* Reasons for transport reset event */ #define VIRTIO_SCSI_EVT_RESET_HARD 0 @@ -560,6 +562,7 @@ static uint32_t virtio_scsi_get_features(VirtIODevice *vdev, uint32_t requested_features) { requested_features |= (1UL << VIRTIO_SCSI_F_HOTPLUG); + requested_features |= (1UL << VIRTIO_SCSI_F_CHANGE); return requested_features; } @@ -647,6 +650,18 @@ static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq) } } +static void virtio_scsi_change(SCSIBus *bus, SCSIDevice *dev, SCSISense sense) +{ + VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus); + + if (((s->vdev.guest_features >> VIRTIO_SCSI_F_CHANGE) & 1) && + (s->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK) && + dev->type != TYPE_ROM) { + virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_PARAM_CHANGE, + sense.asc | (sense.ascq << 8)); + } +} + static void virtio_scsi_hotplug(SCSIBus *bus, SCSIDevice *dev) { VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus); @@ -676,6 +691,7 @@ static struct SCSIBusInfo virtio_scsi_scsi_info = { .complete = virtio_scsi_command_complete, .cancel = virtio_scsi_request_cancelled, + .change = virtio_scsi_change, .hotplug = virtio_scsi_hotplug, .hot_unplug = virtio_scsi_hot_unplug, .get_sg_list = virtio_scsi_get_sg_list, -- 1.7.11.7