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numam-dpdk/lib/power/meson.build

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build: replace license text with SPDX tag Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: Luca Boccassi <bluca@debian.org>
2017-12-18 15:56:25 +00:00
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
lib: build with meson Add non-EAL libraries to DPDK build. The compat lib is a special case, along with the previously-added EAL, but all other libs can be build using the same set of commands, where the individual meson.build files only need to specify their dependencies, source files, header files and ABI versions. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: Harry van Haaren <harry.van.haaren@intel.com> Acked-by: Keith Wiles <keith.wiles@intel.com> Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
2017-10-17 13:43:57 +01:00
build: increase readability via shortcut variables Define variables for "is_linux", "is_freebsd" and "is_windows" to make the code shorter for comparisons and more readable. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: David Marchand <david.marchand@redhat.com> Acked-by: Luca Boccassi <bluca@debian.org>
2019-04-09 11:55:36 +01:00
if not is_linux
lib: clean up build files Switch from using tabs to 4 spaces for meson.build indentation. Perform other formatting cleanups such as ensure that long lists of files are one per line, and terminating with a final comma before the closing brace to make addition/removals easier. In some cases, reorder lists of items where they were not in alphabetical order. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-20 11:22:24 +01:00
build = false
reason = 'only supported on Linux'
lib: build with meson Add non-EAL libraries to DPDK build. The compat lib is a special case, along with the previously-added EAL, but all other libs can be build using the same set of commands, where the individual meson.build files only need to specify their dependencies, source files, header files and ABI versions. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Reviewed-by: Harry van Haaren <harry.van.haaren@intel.com> Acked-by: Keith Wiles <keith.wiles@intel.com> Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
2017-10-17 13:43:57 +01:00
endif
lib: clean up build files Switch from using tabs to 4 spaces for meson.build indentation. Perform other formatting cleanups such as ensure that long lists of files are one per line, and terminating with a final comma before the closing brace to make addition/removals easier. In some cases, reorder lists of items where they were not in alphabetical order. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-20 11:22:24 +01:00
sources = files(
'guest_channel.c',
'power_acpi_cpufreq.c',
'power_common.c',
power: support cppc_cpufreq driver Currently in DPDK only acpi_cpufreq and pstate_cpufreq drivers are supported, which are both not available on arm64 platforms. Add support for cppc_cpufreq driver which works on most arm64 platforms. Signed-off-by: Richael Zhuang <richael.zhuang@arm.com> Acked-by: David Hunt <david.hunt@intel.com>
2021-07-09 18:55:47 +08:00
'power_cppc_cpufreq.c',
lib: clean up build files Switch from using tabs to 4 spaces for meson.build indentation. Perform other formatting cleanups such as ensure that long lists of files are one per line, and terminating with a final comma before the closing brace to make addition/removals easier. In some cases, reorder lists of items where they were not in alphabetical order. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-20 11:22:24 +01:00
'power_kvm_vm.c',
'power_pstate_cpufreq.c',
'rte_power.c',
'rte_power_empty_poll.c',
'rte_power_pmd_mgmt.c',
)
headers = files(
'rte_power.h',
'rte_power_empty_poll.h',
'rte_power_pmd_mgmt.h',
build: fix formatting of Meson lists Running "./devtools/check-meson.py --fix" on the DPDK repo fixes a number of issues with whitespace and formatting of files: * indentation of lists * missing trailing commas on final list element * multiple list entries per line when list is not all single-line Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-26 11:54:03 +01:00
'rte_power_guest_channel.h',
lib: clean up build files Switch from using tabs to 4 spaces for meson.build indentation. Perform other formatting cleanups such as ensure that long lists of files are one per line, and terminating with a final comma before the closing brace to make addition/removals easier. In some cases, reorder lists of items where they were not in alphabetical order. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-20 11:22:24 +01:00
)
power: make ethdev power management thread unsafe Currently, we expect that only one callback can be active at any given moment, for a particular queue configuration, which is relatively easy to implement in a thread-safe way. However, we're about to add support for multiple queues per lcore, which will greatly increase the possibility of various race conditions. We could have used something like an RCU for this use case, but absent of a pressing need for thread safety we'll go the easy way and just mandate that the API's are to be called when all affected ports are stopped, and document this limitation. This greatly simplifies the `rte_power_monitor`-related code. Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com> Tested-by: David Hunt <david.hunt@intel.com>
2021-07-09 16:08:14 +00:00
if cc.has_argument('-Wno-cast-qual')
cflags += '-Wno-cast-qual'
endif
power: add ethdev power management Add a simple on/off switch that will enable saving power when no packets are arriving. It is based on counting the number of empty polls and, when the number reaches a certain threshold, entering an architecture-defined optimized power state that will either wait until a TSC timestamp expires, or when packets arrive. This API mandates a core-to-single-queue mapping (that is, multiple queued per device are supported, but they have to be polled on different cores). This design is using PMD RX callbacks. 1. UMWAIT/UMONITOR: When a certain threshold of empty polls is reached, the core will go into a power optimized sleep while waiting on an address of next RX descriptor to be written to. 2. TPAUSE/Pause instruction This method uses the pause (or TPAUSE, if available) instruction to avoid busy polling. 3. Frequency scaling Reuse existing DPDK power library to scale up/down core frequency depending on traffic volume. Signed-off-by: Liang Ma <liang.j.ma@intel.com> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com> Acked-by: David Hunt <david.hunt@intel.com>
2021-01-22 17:12:16 +00:00
deps += ['timer', 'ethdev']
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