[PATCH v11 01/16] eal: use rdtsc intrinsic

[Ali Alnubani]

> -----Original Message-----
> From: Tyler Retzlaff <roretzla at linux.microsoft.com>
> Sent: Friday, August 11, 2023 10:21 PM
> To: dev at dpdk.org
> Cc: Bruce Richardson <bruce.richardson at intel.com>; Konstantin Ananyev
> <konstantin.v.ananyev at yandex.ru>; Ciara Power <ciara.power at intel.com>;
> NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>;
> david.marchand at redhat.com; mb at smartsharesystems.com; Tyler Retzlaff
> <roretzla at linux.microsoft.com>
> Subject: [PATCH v11 01/16] eal: use rdtsc intrinsic
> 
> Inline assembly is not supported for MSVC x64. Convert code to use
> __rdtsc intrinsic.
> 
> Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
> Acked-by: Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
> Acked-by: Morten Brørup <mb at smartsharesystems.com>
> ---

Hello,

This patch is causing a build failure in Windows with Clang 11:

"""
[72/803] Compiling C object drivers/common/idpf/6e54547@@idpf_common_avx512_lib at sta/idpf_common_rxtx_avx512.c.obj
FAILED: drivers/common/idpf/6e54547@@idpf_common_avx512_lib at sta/idpf_common_rxtx_avx512.c.obj
clang @drivers/common/idpf/6e54547@@idpf_common_avx512_lib at sta/idpf_common_rxtx_avx512.c.obj.rsp
In file included from ../drivers/common/idpf/idpf_common_rxtx_avx512.c:6:
In file included from ..\drivers\common\idpf/idpf_common_device.h:9:
In file included from ..\drivers\common\idpf/base/idpf_prototype.h:9:
In file included from ..\drivers\common\idpf/base/idpf_osdep.h:18:
In file included from ..\lib\eal\include\rte_malloc.h:16:
In file included from ..\lib\eal\include\rte_memory.h:25:
In file included from ..\lib\eal\include\rte_fbarray.h:39:
In file included from ..\lib\eal\x86\include\rte_rwlock.h:13:
In file included from ..\lib\eal\x86\include/rte_spinlock.h:18:
In file included from ..\lib\eal\x86\include/rte_cycles.h:12:
In file included from C:\Tools\LLVM\lib\clang\11.0.0\include\x86intrin.h:24:
C:\Tools\LLVM\lib\clang\11.0.0\include\prfchwintrin.h:50:1: error: conflicting types for '__m_prefetchw'
_m_prefetchw(void *__P)
^
..\lib\eal\windows\include\rte_windows.h:28:22: note: expanded from macro '_m_prefetchw'
#define _m_prefetchw __m_prefetchw
                     ^
C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um\winnt.h:3324:1: note: previous declaration is here
_m_prefetchw (
^
..\lib\eal\windows\include\rte_windows.h:28:22: note: expanded from macro '_m_prefetchw'
#define _m_prefetchw __m_prefetchw
                     ^
1 error generated.
[73/803] Generating rte_bus_auxiliary_def with a custom command
[74/803] Compiling C object drivers/a715181@@tmp_rte_common_idpf at sta/common_idpf_base_idpf_controlq.c.obj
[75/803] Compiling C object drivers/a715181@@tmp_rte_common_idpf at sta/common_idpf_idpf_common_rxtx.c.obj
[76/803] Compiling C object drivers/a715181@@tmp_rte_common_idpf at sta/common_idpf_base_idpf_controlq_setup.c.obj
[77/803] Generating rte_bus_vdev.pmd.c with a custom command
[78/803] Compiling C object drivers/a715181@@tmp_rte_bus_pci at sta/bus_pci_pci_params.c.obj
[79/803] Compiling C object drivers/a715181@@tmp_rte_bus_pci at sta/bus_pci_pci_common.c.obj
[80/803] Compiling C object drivers/a715181@@tmp_rte_common_idpf at sta/common_idpf_base_idpf_common.c.obj
[81/803] Compiling C object drivers/a715181@@tmp_rte_common_idpf at sta/common_idpf_idpf_common_virtchnl.c.obj
ninja: build stopped: subcommand failed.
"""

Cross build with x86_64-w64-mingw32-gcc 12.2.1 on Fedora Linux doesn't reproduce.

Regards,
Ali