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virtio-blk: enable multiple vectors when using multiple I/O queues

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Currently virtio-pci driver hardcoded 2 vectors for virtio-blk device,
for multiple I/O queues scenario, all the I/O queues will share one
interrupt vector, while here, enable multiple vectors according to
the number of I/O queues.

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Changpeng Liu 2018-02-06 09:35:34 +08:00 • committed by Michael S. Tsirkin
parent 9d6b9db19c
commit 0ebf9a7488
2 changed files with 20 additions and 2 deletions
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8
include/hw/compat.h
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@ -6,6 +6,14 @@
.driver = "hpet",\
.property = "hpet-offset-saved",\
.value = "false",\
},{\
.driver = "virtio-blk-pci",\
.property = "vectors",\
.value = "2",\
},{\
.driver = "vhost-user-blk-pci",\
.property = "vectors",\
.value = "2",\
},
#define HW_COMPAT_2_10 \