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| author | Alex Williamson <alex.williamson@redhat.com> | 2010-09-02 09:00:50 -0600 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2010-09-07 20:29:24 +0300 |
| commit | f0c07c7c7b4fe4f9b63c88341fd32707def5a058 (patch) | |
| tree | 189a2c3e3a0a4877cf5e18c9e5968443eb3482c9 /hw/virtio-net.h | |
| parent | ca736c8e748e3bf77abe401231a412b9cdccb9d3 (diff) | |
| download | focaccia-qemu-f0c07c7c7b4fe4f9b63c88341fd32707def5a058.tar.gz focaccia-qemu-f0c07c7c7b4fe4f9b63c88341fd32707def5a058.zip | |
virtio-net: Make tx_timer timeout configurable
Add an option to make the TX mitigation timer adjustable as a device option. The 150us hard coded default used currently is reasonable, but may not be suitable for all workloads, this gives us a way to adjust it using a single binary. We can't support any random option though, so use the "x-" prefix to indicate this is a developer option. Usage: -device virtio-net-pci,x-txtimer=500000,... # .5ms timeout Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio-net.h')
| -rw-r--r-- | hw/virtio-net.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/virtio-net.h b/hw/virtio-net.h index 235f1a9fa8..46a2e1c57d 100644 --- a/hw/virtio-net.h +++ b/hw/virtio-net.h @@ -49,6 +49,11 @@ #define TX_TIMER_INTERVAL 150000 /* 150 us */ +typedef struct virtio_net_conf +{ + uint32_t txtimer; +} virtio_net_conf; + /* Maximum packet size we can receive from tap device: header + 64k */ #define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 << 10)) |