[PATCH v6 0/7] Introduce support for LoongArch architecture

[maobibo]

kindly ping, any comments is welcome.

Now linux kernel/gcc/binutils mainline branches have add support for Loongarch.
only there is no popular OS distribution. 

regards
bibo,mao

在 2022/9/1 08:09, zhoumin 写道:
> Sincerely ping.
> 
> 
> On Sat, 27 Aug, 2022 at 16:59 +0800, Min Zhou wrote:
>> Dear team,
>>
>> The following patch set is intended to support DPDK running on LoongArch
>> architecture.
>>
>> LoongArch is the general processor architecture of Loongson Corporation
>> and is a new RISC ISA, which is a bit like MIPS or RISC-V.
>>
>> The online documents of LoongArch architecture are here:
>>      https://loongson.github.io/LoongArch-Documentation/README-EN.html
>>
>> The latest build tools for LoongArch (binary) can be downloaded from:
>>      https://github.com/loongson/build-tools
>>
>> v6:
>>      - place some blocks for LoongArch in a pseudo alphabetical order
>>      - remove some macros not used
>>      - update release notes in the correct format
>>      - remove some headers for LoongArch, including msclock, pflock and
>>        ticketlock, which are now non-arch specific
>>      - rename some helpers to make them more readable
>>      - remove some copied comments
>>      - force-set RTE_FORCE_INTRINSICS in config and remove non-arch
>>        specific implementations
>>      - fix format errors in meson file reported by check-meson.py
>>      - rebase the patchset on the main repository
>>
>> v5:
>>      - merge all patches for supporting LoongArch EAL into one patch
>>      - add LoongArch cross compilation document and update some documents
>>        related to architecture
>>      - remove vector stubs added for LoongArch in net/i40e and net/ixgbe
>>      - add LOONGARCH64 cross compilation job in github ci
>>
>> v4:
>>      - rebase the patchset on the main repository of version 22.07.0
>>
>> v3:
>>      - add URL for cross compile tool chain
>>      - remove rte_lpm_lsx.h which was a dummy vector implementation
>>        because there is already a scalar implementation, thanks to
>>        Michal Mazurek
>>      - modify the name of compiler for cross compiling
>>      - remove useless variable in meson.build
>>
>> v2:
>>      - use standard atomics of toolchain to implement
>>        atomic operations
>>      - implement spinlock based on standard atomics
>>
>> *** BLURB HERE ***
>>
>> Min Zhou (7):
>>    eal/loongarch: support LoongArch architecture
>>    net/ixgbe: add vector stubs for LoongArch
>>    net/memif: set memfd syscall ID on LoongArch
>>    net/tap: set BPF syscall ID for LoongArch
>>    examples/l3fwd: enable LoongArch operation
>>    test/cpuflags: add test for LoongArch cpu flag
>>    ci: add LOONGARCH64 cross compilation job
>>
>>   .ci/linux-build.sh                            | 10 ++
>>   .github/workflows/build.yml                   | 10 +-
>>   MAINTAINERS                                   |  6 ++
>>   app/test/test_cpuflags.c                      | 41 ++++++++
>>   app/test/test_xmmt_ops.h                      | 12 +++
>>   .../loongarch/loongarch_loongarch64_linux_gcc | 16 ++++
>>   config/loongarch/meson.build                  | 43 +++++++++
>>   doc/guides/contributing/design.rst            |  2 +-
>>   .../cross_build_dpdk_for_loongarch.rst        | 87 +++++++++++++++++
>>   doc/guides/linux_gsg/index.rst                |  1 +
>>   doc/guides/nics/features.rst                  |  8 ++
>>   doc/guides/nics/features/default.ini          |  1 +
>>   doc/guides/nics/features/ixgbe.ini            |  1 +
>>   doc/guides/rel_notes/release_22_11.rst        |  7 ++
>>   drivers/net/i40e/meson.build                  |  6 ++
>>   drivers/net/ixgbe/ixgbe_rxtx.c                |  7 +-
>>   drivers/net/memif/rte_eth_memif.h             |  2 +
>>   drivers/net/tap/tap_bpf.h                     |  2 +
>>   examples/l3fwd/l3fwd_em.c                     |  8 ++
>>   lib/eal/linux/eal_memory.c                    |  4 +
>>   lib/eal/loongarch/include/meson.build         | 18 ++++
>>   lib/eal/loongarch/include/rte_atomic.h        | 47 ++++++++++
>>   lib/eal/loongarch/include/rte_byteorder.h     | 40 ++++++++
>>   lib/eal/loongarch/include/rte_cpuflags.h      | 39 ++++++++
>>   lib/eal/loongarch/include/rte_cycles.h        | 47 ++++++++++
>>   lib/eal/loongarch/include/rte_io.h            | 18 ++++
>>   lib/eal/loongarch/include/rte_memcpy.h        | 61 ++++++++++++
>>   lib/eal/loongarch/include/rte_pause.h         | 24 +++++
>>   .../loongarch/include/rte_power_intrinsics.h  | 20 ++++
>>   lib/eal/loongarch/include/rte_prefetch.h      | 47 ++++++++++
>>   lib/eal/loongarch/include/rte_rwlock.h        | 42 +++++++++
>>   lib/eal/loongarch/include/rte_spinlock.h      | 64 +++++++++++++
>>   lib/eal/loongarch/include/rte_vect.h          | 65 +++++++++++++
>>   lib/eal/loongarch/meson.build                 | 11 +++
>>   lib/eal/loongarch/rte_cpuflags.c              | 93 +++++++++++++++++++
>>   lib/eal/loongarch/rte_cycles.c                | 45 +++++++++
>>   lib/eal/loongarch/rte_hypervisor.c            | 11 +++
>>   lib/eal/loongarch/rte_power_intrinsics.c      | 51 ++++++++++
>>   meson.build                                   |  2 +
>>   39 files changed, 1015 insertions(+), 4 deletions(-)
>>   create mode 100644 config/loongarch/loongarch_loongarch64_linux_gcc
>>   create mode 100644 config/loongarch/meson.build
>>   create mode 100644 doc/guides/linux_gsg/cross_build_dpdk_for_loongarch.rst
>>   create mode 100644 lib/eal/loongarch/include/meson.build
>>   create mode 100644 lib/eal/loongarch/include/rte_atomic.h
>>   create mode 100644 lib/eal/loongarch/include/rte_byteorder.h
>>   create mode 100644 lib/eal/loongarch/include/rte_cpuflags.h
>>   create mode 100644 lib/eal/loongarch/include/rte_cycles.h
>>   create mode 100644 lib/eal/loongarch/include/rte_io.h
>>   create mode 100644 lib/eal/loongarch/include/rte_memcpy.h
>>   create mode 100644 lib/eal/loongarch/include/rte_pause.h
>>   create mode 100644 lib/eal/loongarch/include/rte_power_intrinsics.h
>>   create mode 100644 lib/eal/loongarch/include/rte_prefetch.h
>>   create mode 100644 lib/eal/loongarch/include/rte_rwlock.h
>>   create mode 100644 lib/eal/loongarch/include/rte_spinlock.h
>>   create mode 100644 lib/eal/loongarch/include/rte_vect.h
>>   create mode 100644 lib/eal/loongarch/meson.build
>>   create mode 100644 lib/eal/loongarch/rte_cpuflags.c
>>   create mode 100644 lib/eal/loongarch/rte_cycles.c
>>   create mode 100644 lib/eal/loongarch/rte_hypervisor.c
>>   create mode 100644 lib/eal/loongarch/rte_power_intrinsics.c
>>
> 
> -- 
> Thanks,
> Min Zhou