Xiong Zhang 3185ae95dd devices: enable MSI-X for virtio-net and viotio-block devices ... - signal_used_queue(): trigger MSI-X interrupts to the guest if MSI-X is enabled, otherwise trigger INTx interrupts - enable MSI-X on vhost-net: allocate one vhost_interrupt for every MSI-X vector. Performance wise, fio random R/W test on eve pixelbook: INTx MSI-X delta fio write 8.13MiB/s 9.79MiB/s +1.66MiB/s (+20%) fio read 24.35MiB/s 29.3MiB/s +4.95MiB/s (+20%) For networking performance (TCP stream), test results on eve pixelbook: INTx MSI-X delta iperf3 5.93Gbits/s 6.57Gbits/s +0.64Gbits/s (+10.7%) iperf3 -R 5.68Gbits/s 7.37Gbits/s +1.30Gbits/s (+22.8%) iperf test results on VM launched from Ubuntu host (client sends only): INTx MSI-X delta virtio-net 9.53Gbits/s 11.4 Gbits/s +1.87Gbits/s (+19.5%) vhost 28.34Gbits/s 44.43Gbits/s +16.09Gbits/s (+56.7%) BUG=chromium:854765 TEST=cargo test -p devices TEST=tested virtio-net and block on Linux VM and eve pixelbook Change-Id: Ic4952a094327e6b977f446def8209ea2f796878c Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com> Signed-off-by: Zide Chen <zide.chen@intel.corp-partner.google.com> Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1828340 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>		2019-10-25 23:59:43 +00:00
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src	devices: enable MSI-X for virtio-net and viotio-block devices	2019-10-25 23:59:43 +00:00
Cargo.toml	usb: replace libusb with Rust usb_util library	2019-10-17 00:20:24 +00:00