7b74d99404
- kvm-arm-virt-Register-highmem-and-gic-version-as-class-p.patch [bz#1952449] - kvm-hw-arm-virt-Add-8.5-and-9.0-machine-types-and-remove.patch [bz#1952449] - kvm-aarch64-rh-devices-add-CONFIG_PVPANIC_PCI.patch [bz#1747467] - kvm-spec-Do-not-build-qemu-kvm-block-gluster.patch [bz#1964795] - kvm-spec-Do-not-link-pcnet-and-ne2k_pci-roms.patch [bz#1965961] - kvm-redhat-s390x-add-rhel-8.5.0-compat-machine.patch [bz#1957194] - kvm-redhat-add-missing-entries-in-hw_compat_rhel_8_4.patch [bz#1957194] - kvm-redhat-Define-pseries-rhel8.5.0-machine-type.patch [bz#1957194] - kvm-virtio-net-failover-add-missing-remove_migration_sta.patch [bz#1957194] - kvm-hw-arm-virt-Disable-PL011-clock-migration-through-hw.patch [bz#1957194] - kvm-virtio-blk-Fix-rollback-path-in-virtio_blk_data_plan.patch [bz#1957194] - kvm-virtio-blk-Configure-all-host-notifiers-in-a-single-.patch [bz#1957194] - kvm-virtio-scsi-Set-host-notifiers-and-callbacks-separat.patch [bz#1957194] - kvm-virtio-scsi-Configure-all-host-notifiers-in-a-single.patch [bz#1957194] - kvm-hw-arm-smmuv3-Another-range-invalidation-fix.patch [bz#1957194] - Resolves: bz#1952449 ([aarch64] define RHEL9 machine types) - Resolves: bz#1747467 ([aarch64] [qemu] PVPANIC support) - Resolves: bz#1964795 (Remove qemu-kvm-block-gluster package) - Resolves: bz#1965961 (Remove links to not build roms) - Resolves: bz#1957194 (Synchronize RHEL-AV 8.5.0 changes to RHEL 9.0.0 Beta)
126 lines
4.6 KiB
Diff
126 lines
4.6 KiB
Diff
From 0ca53acb7ee0a3b3b72685f47df1fb2466989d6c Mon Sep 17 00:00:00 2001
|
|
From: Greg Kurz <groug@kaod.org>
|
|
Date: Wed, 26 May 2021 09:03:53 -0400
|
|
Subject: [PATCH 13/15] virtio-scsi: Set host notifiers and callbacks
|
|
separately
|
|
|
|
RH-Author: Miroslav Rezanina <mrezanin@redhat.com>
|
|
RH-MergeRequest: 5: Synchronize RHEL-AV 8.5 release 18 to RHEL 9 Beta
|
|
RH-Commit: [10/12] 61f873b494c52dc34eb60a705046bfead08532da (mrezanin/centos-src-qemu-kvm)
|
|
RH-Bugzilla: 1957194
|
|
RH-Acked-by: Danilo Cesar Lemes de Paula <ddepaula@redhat.com>
|
|
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
|
|
RH-Acked-by: Greg Kurz <gkurz@redhat.com>
|
|
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
|
|
|
|
Host notifiers are guaranteed to be idle until the callbacks are
|
|
hooked up with virtio_queue_aio_set_host_notifier_handler(). They
|
|
thus don't need to be set or unset with the AioContext lock held.
|
|
|
|
Do this outside the critical section, like virtio-blk already
|
|
does : basically downgrading virtio_scsi_vring_init() to only
|
|
setup the host notifier and set the callback in the caller.
|
|
|
|
This will allow to batch addition/deletion of ioeventds in
|
|
a single memory transaction, which is expected to greatly
|
|
improve initialization time.
|
|
|
|
Signed-off-by: Greg Kurz <groug@kaod.org>
|
|
Message-Id: <20210407143501.244343-4-groug@kaod.org>
|
|
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
|
|
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
|
|
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
|
(cherry picked from commit 61fc57bfc464c3584bd7ab810c86833661f0188c)
|
|
Signed-off-by: Greg Kurz <gkurz@redhat.com>
|
|
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
|
|
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
---
|
|
hw/scsi/virtio-scsi-dataplane.c | 40 ++++++++++++++++++---------------
|
|
1 file changed, 22 insertions(+), 18 deletions(-)
|
|
|
|
diff --git a/hw/scsi/virtio-scsi-dataplane.c b/hw/scsi/virtio-scsi-dataplane.c
|
|
index 4ad8793406..b2cb3d9dcc 100644
|
|
--- a/hw/scsi/virtio-scsi-dataplane.c
|
|
+++ b/hw/scsi/virtio-scsi-dataplane.c
|
|
@@ -94,8 +94,7 @@ static bool virtio_scsi_data_plane_handle_event(VirtIODevice *vdev,
|
|
return progress;
|
|
}
|
|
|
|
-static int virtio_scsi_vring_init(VirtIOSCSI *s, VirtQueue *vq, int n,
|
|
- VirtIOHandleAIOOutput fn)
|
|
+static int virtio_scsi_set_host_notifier(VirtIOSCSI *s, VirtQueue *vq, int n)
|
|
{
|
|
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(s)));
|
|
int rc;
|
|
@@ -109,7 +108,6 @@ static int virtio_scsi_vring_init(VirtIOSCSI *s, VirtQueue *vq, int n,
|
|
return rc;
|
|
}
|
|
|
|
- virtio_queue_aio_set_host_notifier_handler(vq, s->ctx, fn);
|
|
return 0;
|
|
}
|
|
|
|
@@ -154,38 +152,44 @@ int virtio_scsi_dataplane_start(VirtIODevice *vdev)
|
|
goto fail_guest_notifiers;
|
|
}
|
|
|
|
- aio_context_acquire(s->ctx);
|
|
- rc = virtio_scsi_vring_init(s, vs->ctrl_vq, 0,
|
|
- virtio_scsi_data_plane_handle_ctrl);
|
|
- if (rc) {
|
|
- goto fail_vrings;
|
|
+ rc = virtio_scsi_set_host_notifier(s, vs->ctrl_vq, 0);
|
|
+ if (rc != 0) {
|
|
+ goto fail_host_notifiers;
|
|
}
|
|
|
|
vq_init_count++;
|
|
- rc = virtio_scsi_vring_init(s, vs->event_vq, 1,
|
|
- virtio_scsi_data_plane_handle_event);
|
|
- if (rc) {
|
|
- goto fail_vrings;
|
|
+ rc = virtio_scsi_set_host_notifier(s, vs->event_vq, 1);
|
|
+ if (rc != 0) {
|
|
+ goto fail_host_notifiers;
|
|
}
|
|
|
|
vq_init_count++;
|
|
+
|
|
for (i = 0; i < vs->conf.num_queues; i++) {
|
|
- rc = virtio_scsi_vring_init(s, vs->cmd_vqs[i], i + 2,
|
|
- virtio_scsi_data_plane_handle_cmd);
|
|
+ rc = virtio_scsi_set_host_notifier(s, vs->cmd_vqs[i], i + 2);
|
|
if (rc) {
|
|
- goto fail_vrings;
|
|
+ goto fail_host_notifiers;
|
|
}
|
|
vq_init_count++;
|
|
}
|
|
|
|
+ aio_context_acquire(s->ctx);
|
|
+ virtio_queue_aio_set_host_notifier_handler(vs->ctrl_vq, s->ctx,
|
|
+ virtio_scsi_data_plane_handle_ctrl);
|
|
+ virtio_queue_aio_set_host_notifier_handler(vs->event_vq, s->ctx,
|
|
+ virtio_scsi_data_plane_handle_event);
|
|
+
|
|
+ for (i = 0; i < vs->conf.num_queues; i++) {
|
|
+ virtio_queue_aio_set_host_notifier_handler(vs->cmd_vqs[i], s->ctx,
|
|
+ virtio_scsi_data_plane_handle_cmd);
|
|
+ }
|
|
+
|
|
s->dataplane_starting = false;
|
|
s->dataplane_started = true;
|
|
aio_context_release(s->ctx);
|
|
return 0;
|
|
|
|
-fail_vrings:
|
|
- aio_wait_bh_oneshot(s->ctx, virtio_scsi_dataplane_stop_bh, s);
|
|
- aio_context_release(s->ctx);
|
|
+fail_host_notifiers:
|
|
for (i = 0; i < vq_init_count; i++) {
|
|
virtio_bus_set_host_notifier(VIRTIO_BUS(qbus), i, false);
|
|
virtio_bus_cleanup_host_notifier(VIRTIO_BUS(qbus), i);
|
|
--
|
|
2.27.0
|
|
|