genode/repos/os/run/nvme.run
Josef Söntgen ae0e0c118e nvme_drv: add support for host-memory-buffer
This commit introduces support for the HMB feature and will setup the
buffer during start-up. The host-memory-buffer (HMB) feature is mostly
used on NVMe devices that do not make use of an DRAM cache to store its
translation tables amongst other operational data. Not using HMB can
impair the performance on such devices.

The memory is allocated in 2 MiB chunks of DMA-capable memory and its
total size in bytes is configurable via the 'hmb_size' config attribute.
The driver always checks the minimal and preferred size of the HMB and
issues a warning in case it is not enabled via the configuration.
Moreover, if the configured size is less than the minimal amount
required by the device the HMB is not configured at all and a warning
is issued also. If the configured size is more than the preferred size
it will be capped to that amount.

Fixes #4715.
2023-03-13 14:32:53 +01:00

265 lines
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assert_spec x86
# perform write tests when requested
if {[info exists env(GENODE_TEST_WRITE)]} {
set test_write 1
} else {
set test_write 0
}
set is_qemu [have_include power_on/qemu]
set is_old [expr [have_spec fiasco] || [have_spec okl4] || [have_spec pistachio]]
set is_32bit_x86_hw [expr !$is_qemu && [have_spec 32bit]]
#
# Only run tests on supported platforms
#
if {[expr [have_spec linux] || $is_32bit_x86_hw || [expr $is_qemu && $is_old]]} {
puts "This run script is not supported on this platform."
exit 0
}
#
# Qemu and on certain platforms only use the small set of tests
#
set small_test [expr $is_qemu || [have_spec foc] || [have_spec sel4]]
#
# Check used commands
#
set dd [installed_command dd]
#
# Query writeable for policy
#
proc writeable { } {
global test_write
if {$test_write} {
return yes
} else {
return no
}
}
#
# Build
#
set build_components {
core init timer
server/report_rom
app/pci_decode
drivers/acpi
drivers/platform
drivers/nvme
app/block_tester
}
build $build_components
#
# Create raw image
#
catch { exec $dd if=/dev/zero of=bin/nvme.raw bs=1M count=0 seek=32768 }
create_boot_directory
#
# Generate config
#
append config {
<config verbose="no">
<parent-provides>
<service name="ROM"/>
<service name="IRQ"/>
<service name="IO_MEM"/>
<service name="IO_PORT"/>
<service name="PD"/>
<service name="RM"/>
<service name="CPU"/>
<service name="LOG"/>
</parent-provides>
<default-route>
<any-service> <parent/> <any-child/> </any-service>
</default-route>
<default caps="100"/>
<start name="timer">
<resource name="RAM" quantum="1M"/>
<provides><service name="Timer"/></provides>
</start>
<start name="report_rom">
<resource name="RAM" quantum="2M"/>
<provides> <service name="Report"/> <service name="ROM"/> </provides>
<config>
<policy label="pci_decode -> system" report="acpi_drv -> acpi"/>
<policy label="platform_drv -> devices" report="pci_decode -> devices"/>
</config>
</start>
<start name="acpi_drv" caps="350">
<resource name="RAM" quantum="4M"/>
<route>
<service name="Report"> <child name="report_rom"/> </service>
<service name="IO_MEM"> <parent/> </service>
<service name="LOG"> <parent/> </service>
<service name="PD"> <parent/> </service>
<service name="RM"> <parent/> </service>
<service name="CPU"> <parent/> </service>
<service name="ROM"> <parent/> </service>
</route>
</start>
<start name="pci_decode" caps="350">
<resource name="RAM" quantum="2M"/>
<route>
<service name="Report"> <child name="report_rom"/> </service>
<service name="ROM" label="system"> <child name="report_rom"/> </service>
<service name="IO_MEM"> <parent/> </service>
<service name="LOG"> <parent/> </service>
<service name="PD"> <parent/> </service>
<service name="RM"> <parent/> </service>
<service name="CPU"> <parent/> </service>
<service name="ROM"> <parent/> </service>
</route>
</start>
<start name="platform_drv" caps="100" managing_system="yes">
<resource name="RAM" quantum="2M"/>
<provides>
<service name="Platform"/>
</provides>
<route>
<service name="ROM" label="devices"> <child name="report_rom"/> </service>
<service name="Report"> <child name="report_rom"/> </service>
<service name="IRQ"> <parent/> </service>
<service name="IO_MEM"> <parent/> </service>
<service name="IO_PORT"> <parent/> </service>
<service name="ROM"> <parent/> </service>
<service name="PD"> <parent/> </service>
<service name="CPU"> <parent/> </service>
<service name="LOG"> <parent/> </service>
<service name="Timer"> <child name="timer"/> </service>
</route>
<config>
<report devices="yes"/>
<policy label="nvme_drv -> " info="yes"> <pci class="NVME"/> </policy>
</config>
</start>
<start name="nvme_drv" caps="120">
<resource name="RAM" quantum="24M"/>
<provides> <service name="Block"/> </provides>
<config max_hmb_size="16M" verbose_regs="yes" verbose_identify="yes">
<policy label_prefix="block_tester" writeable="} [writeable] {"/>
</config>
<route>
<service name="Platform"><child name="platform_drv"/> </service>
<service name="Timer"> <child name="timer"/> </service>
<service name="CPU"> <parent/> </service>
<service name="ROM"> <parent/> </service>
<service name="PD"> <parent/> </service>
<service name="LOG"> <parent/> </service>
</route>
</start>
<start name="block_tester" caps="200">
<resource name="RAM" quantum="64M"/>
<config verbose="no" report="no" log="yes" stop_on_error="no">
<tests>}
append_if $small_test config {
<sequential length="256M" size="64K"/>
<random length="256M" size="64K" seed="0xdeadbeef"/>}
append_if [expr !$small_test] config {
<sequential length="1G" size="4K" batch="128"/>
<sequential length="1G" size="8K" batch="128"/>
<sequential length="1G" size="64K"/>
<sequential length="3G" size="1M" batch="128"/>
<random length="1G" size="16K" seed="0xdeadbeef"/>
<random length="3G" size="512K" seed="0xc0ffee"/>
<ping_pong length="1G" size="16K"/>}
append_if $test_write config {
<sequential length="256M" size="64K" batch="128" write="yes"/>
<replay batch="128">
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="2048" count="1016"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="2048" count="1016"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="0" count="1"/>
<request type="read" lba="2048" count="1016"/>
<request type="read" lba="4096" count="1"/>
<request type="read" lba="51881" count="1"/>
<request type="read" lba="51890" count="1"/>
<request type="read" lba="114184" count="14"/>
<request type="read" lba="114198" count="1"/>
<request type="read" lba="114033" count="127"/>
<request type="read" lba="114160" count="24"/>
<request type="write" lba="0" count="1"/>
<request type="read" lba="12288" count="2048"/>
<request type="write" lba="4096" count="2048"/>
<request type="write" lba="0" count="1"/>
<request type="write" lba="2048" count="1"/>
<request type="write" lba="5696" count="1"/>
<request type="write" lba="5696" count="1"/>
<request type="sync" lba="0" count="1"/>
<request type="write" lba="5696" count="1"/>
<request type="read" lba="4096" count="1"/>
<request type="read" lba="61440" count="16"/>
<request type="read" lba="158777" count="127"/>
<request type="write" lba="40960" count="2048"/>
<request type="write" lba="0" count="1"/>
<request type="write" lba="2073" count="1"/>
<request type="read" lba="190483" count="64"/>
<request type="read" lba="190411" count="53"/>
<request type="read" lba="190464" count="11"/>
<request type="read" lba="106074" count="64"/>
<request type="read" lba="105954" count="56"/>
<request type="read" lba="122802" count="24"/>
<request type="read" lba="123594" count="64"/>
<request type="read" lba="123722" count="64"/>
</replay>}
append config {
</tests>
</config>
<route>
<service name="Block"><child name="nvme_drv"/></service>
<any-service> <parent/> <any-child /> </any-service>
</route>
</start>
</config>}
install_config $config
#
# Boot modules
#
set boot_modules {
core init timer nvme_drv
pci_decode platform_drv report_rom acpi_drv
ld.lib.so block_tester
}
build_boot_image $boot_modules
append qemu_args " -nographic "
append qemu_args " -drive id=nvme0,file=bin/nvme.raw,format=raw,if=none "
append qemu_args " -device nvme,drive=nvme0,serial=fnord,id=nvme0n1 "
run_genode_until {.*child "block_tester" exited with exit value 0.*\n} 300
exec rm -f bin/nvme.raw