xemu/hw
Mike Christie 51396556f0 vhost-scsi: Add support for a worker thread per virtqueue
This adds support for vhost-scsi to be able to create a worker thread
per virtqueue. Right now for vhost-net we get a worker thread per
tx/rx virtqueue pair which scales nicely as we add more virtqueues and
CPUs, but for scsi we get the single worker thread that's shared by all
virtqueues. When trying to send IO to more than 2 virtqueues the single
thread becomes a bottlneck.

This patch adds a new setting, worker_per_virtqueue, which can be set
to:

false: Existing behavior where we get the single worker thread.
true: Create a worker per IO virtqueue.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

Message-Id: <20231204231618.21962-3-michael.christie@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
2023-12-25 11:34:55 -05:00
..
9pfs migration: simplify blockers 2023-10-20 08:51:41 +02:00
acpi hw/acpi/erst: Do not ignore Error* in realize handler 2023-12-02 15:56:49 -05:00
adc meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
alpha hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
arm * Add compat machines for QEMU 9.0 2023-12-20 09:40:16 -05:00
audio ui/audio fixes for 8.2 2023-12-04 08:03:42 -05:00
avr hw/avr/atmega: Fix wrong initial value of stack pointer 2023-11-28 14:27:12 +01:00
block virtio-blk: add iothread-vq-mapping parameter 2023-12-21 22:49:28 +01:00
char hw/xen: add support for Xen primary console in emulated mode 2023-11-07 08:54:20 +00:00
core qdev: add IOThreadVirtQueueMappingList property type 2023-12-21 22:49:28 +01:00
cpu hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
cxl hw/cxl: spelling fixes: limitaions, potentialy, intialized 2023-11-15 11:09:17 +03:00
display hw/display/vmware_vga: fix probably typo 2023-11-13 16:56:24 +01:00
dma hw/dma/xlnx_csu_dma: don't throw guest errors when stopping the SRC DMA 2023-11-27 17:02:04 +00:00
gpio hw/gpio/nrf51: implement DETECT signal 2023-08-22 17:30:59 +01:00
hppa hw/core/machine: Constify MachineClass::valid_cpu_types[] 2023-11-20 15:30:59 +00:00
hyperv vfio queue: 2023-11-07 09:41:52 +08:00
i2c hw/i2c: pmbus: reset page register for out of range reads 2023-11-07 13:08:49 +01:00
i386 * Add compat machines for QEMU 9.0 2023-12-20 09:40:16 -05:00
ide ide/via: Fix BAR4 value in legacy mode 2023-11-28 14:56:32 +01:00
input hw/input/stellaris_gamepad: Free StellarisGamepad::keycodes[] array 2023-11-27 15:27:46 +00:00
intc hw/intc/arm_gicv3: Include missing 'qemu/error-report.h' header 2023-12-19 17:57:44 +00:00
ipack meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
ipmi hw/ipmi: Don't call vmstate_register() from instance_init() functions 2023-11-01 16:13:58 +01:00
isa hw/audio/via-ac97: Route interrupts using via_isa_set_irq() 2023-11-28 14:26:37 +01:00
loongarch hw/acpi: Realize ACPI_GED sysbus device before accessing it 2023-10-19 23:13:28 +02:00
m68k hw: Add compat machines for 9.0 2023-12-20 10:29:23 +01:00
mem hw/mem/memory-device.c: spelling fix: ontaining 2023-11-15 11:59:54 +03:00
microblaze hw/microblaze: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
mips hw/mips: LOONGSON3V depends on UNIMP device 2023-11-13 16:56:06 +01:00
misc * Add compat machines for QEMU 9.0 2023-12-20 09:40:16 -05:00
net hw/net/can/xlnx-zynqmp: Avoid underflow while popping RX FIFO 2023-11-27 15:27:38 +00:00
nios2 target/nios2: Deprecate the Nios II architecture 2023-11-23 14:10:04 +00:00
nubus trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
nvme hw/nvme: Clean up local variable shadowing in nvme_ns_init() 2023-09-29 10:07:20 +02:00
nvram hw/nvram/xlnx-efuse-ctrl: Free XlnxVersalEFuseCtrl[] "pg0-lock" array 2023-11-27 15:27:45 +00:00
openrisc *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
pci msix: unset PCIDevice::msix_vector_poll_notifier in rollback 2023-12-02 15:56:49 -05:00
pci-bridge hw/pci-bridge/cxl_downstream: Set default link width and link speed 2023-11-07 03:39:11 -05:00
pci-host hw/pci-host/astro: Fix boot for C3700 machine 2023-11-13 09:21:32 -08:00
pcmcia hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init() 2023-10-27 12:48:57 +01:00
ppc * Add compat machines for QEMU 9.0 2023-12-20 09:40:16 -05:00
rdma hw/rdma/vmw/pvrdma_cmd: Use correct struct in query_port() 2023-10-21 15:00:22 +03:00
remote hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
riscv riscv: Fix SiFive E CLINT clock frequency 2023-11-22 13:57:19 +10:00
rtc mc146818rtc: rtc_set_time(): initialize tm to zeroes 2023-11-06 15:00:27 +00:00
rx hw/rx/rx62n: Use qdev_prop_set_array() 2023-11-10 18:19:13 +01:00
s390x * Add compat machines for QEMU 9.0 2023-12-20 09:40:16 -05:00
scsi vhost-scsi: Add support for a worker thread per virtqueue 2023-12-25 11:34:55 -05:00
sd hw/sd: Declare QOM types using DEFINE_TYPES() macro 2023-11-07 13:08:49 +01:00
sensor hw/sensor: add ADM1266 device model 2023-11-07 13:08:49 +01:00
sh4 hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
smbios hw/acpi: changes towards enabling -Wshadow=local 2023-09-29 10:07:18 +02:00
sparc other architectures: spelling fixes 2023-07-25 17:14:07 +03:00
sparc64 hw/sparc64/ebus: Access memory regions via pci_address_space_io() 2023-10-19 23:13:28 +02:00
ssi hw/ssi/xilinx_spips: fix an out of bound access 2023-11-27 15:38:43 +00:00
timer migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
tpm hw/tpm: spelling fixes 2023-09-20 07:54:34 +03:00
tricore hw/tricore: Log failing test in testdevice 2023-09-29 08:28:02 +02:00
ufs hw/ufs: avoid generating the same ID string for different LU devices 2023-12-05 13:57:18 +09:00
usb hw/usb/vt82c686-uhci-pci: Use ISA instead of PCI interrupts 2023-11-28 14:26:37 +01:00
vfio vfio: Introduce a helper function to initialize VFIODevice 2023-12-19 19:03:38 +01:00
virtio vhost: Add worker backend callouts 2023-12-25 11:34:55 -05:00
watchdog hw/watchdog/wdt_aspeed: Remove unused 'hw/misc/aspeed_scu.h' header 2023-11-15 11:09:17 +03:00
xen hw/i386/pc: support '-nic' for xen-net-device 2023-11-07 08:54:20 +00:00
xenpv hw/xen: update Xen PV NIC to XenDevice model 2023-11-07 08:54:20 +00:00
xtensa trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value 2023-09-08 13:08:52 +03:00
Kconfig hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00
meson.build hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00