[20.11] kni: fix build for SLES15-SP3

[Ferruh Yigit]

On 12/8/2021 10:34 AM, Ferruh Yigit wrote:
> From: Aman Singh <aman.deep.singh at intel.com>
> 
> [ upstream commit c28e2165ec360c39ea0e3a0c02b4229966697384 ]
> 
> As suse version numbering is inconsistent to determine Linux kernel
> API to be used. In this patch we check parameter of 'ndo_tx_timeout'
> API directly from the kernel source. This is done only for suse build.
> 
> Bugzilla ID: 812
> Cc: stable at dpdk.org
> 
> Signed-off-by: Aman Singh <aman.deep.singh at intel.com>
> Acked-by: Ferruh Yigit <ferruh.yigit at intel.com>
> Tested-by: Longfeng Liang <longfengx.liang at intel.com>
> ---
> Cc: yux.jiang at intel.com
> 
> @Yu, can you please test the patch on SLES15-SP3, I am sending the
> backport without testing it on SUSE.

Hi Xueming(Steven),

Can you please consider this build fix for -rc2 when Yu verifies it?

> ---
>   kernel/linux/kni/compat.h    |  3 ++-
>   kernel/linux/kni/meson.build | 14 +++++++++++++-
>   kernel/linux/meson.build     |  6 ++++++
>   3 files changed, 21 insertions(+), 2 deletions(-)
> 
> diff --git a/kernel/linux/kni/compat.h b/kernel/linux/kni/compat.h
> index 5f65640d5ed2..664785674ff1 100644
> --- a/kernel/linux/kni/compat.h
> +++ b/kernel/linux/kni/compat.h
> @@ -133,7 +133,8 @@
>   
>   #if KERNEL_VERSION(5, 6, 0) <= LINUX_VERSION_CODE || \
>   	(defined(RHEL_RELEASE_CODE) && \
> -	 RHEL_RELEASE_VERSION(8, 3) <= RHEL_RELEASE_CODE)
> +	 RHEL_RELEASE_VERSION(8, 3) <= RHEL_RELEASE_CODE) || \
> +	 (defined(CONFIG_SUSE_KERNEL) && defined(HAVE_ARG_TX_QUEUE))
>   #define HAVE_TX_TIMEOUT_TXQUEUE
>   #endif
>   
> diff --git a/kernel/linux/kni/meson.build b/kernel/linux/kni/meson.build
> index 07e0c9dae727..0eedbd6cb10e 100644
> --- a/kernel/linux/kni/meson.build
> +++ b/kernel/linux/kni/meson.build
> @@ -1,6 +1,17 @@
>   # SPDX-License-Identifier: BSD-3-Clause
>   # Copyright(c) 2018 Luca Boccassi <bluca at debian.org>
>   
> +# For SUSE build check function arguments of ndo_tx_timeout API
> +# Ref: https://jira.devtools.intel.com/browse/DPDK-29263
> +kmod_cflags = ''
> +file_path = kernel_source_dir + '/include/linux/netdevice.h'
> +run_cmd = run_command('grep', 'ndo_tx_timeout', file_path)
> +
> +if run_cmd.stdout().contains('txqueue') == true
> +   kmod_cflags = '-DHAVE_ARG_TX_QUEUE'
> +endif
> +
> +
>   kni_mkfile = custom_target('rte_kni_makefile',
>   	output: 'Makefile',
>   	command: ['touch', '@OUTPUT@'])
> @@ -16,7 +27,8 @@ custom_target('rte_kni',
>   	command: ['make', '-j4', '-C', kernel_dir + '/build',
>   		'M=' + meson.current_build_dir(),
>   		'src=' + meson.current_source_dir(),
> -		'MODULE_CFLAGS=-include ' + meson.source_root() + '/config/rte_config.h' +
> +		' '.join(['MODULE_CFLAGS=', kmod_cflags,'-include '])
> +		+ meson.source_root() + '/config/rte_config.h' +
>   		' -I' + meson.source_root() + '/lib/librte_eal/include' +
>   		' -I' + meson.source_root() + '/lib/librte_kni' +
>   		' -I' + meson.build_root() +
> diff --git a/kernel/linux/meson.build b/kernel/linux/meson.build
> index 5c864a465344..76eb279d9e59 100644
> --- a/kernel/linux/meson.build
> +++ b/kernel/linux/meson.build
> @@ -15,6 +15,12 @@ if kernel_dir == ''
>   	kernel_dir = '/lib/modules/' + kernel_version
>   endif
>   
> +kernel_source_dir = get_option('kernel_dir')
> +if kernel_source_dir == ''
> +	# use default path for native builds
> +	kernel_source_dir = '/lib/modules/' + kernel_version + '/source'
> +endif
> +
>   # test running make in kernel directory, using "make kernelversion"
>   make_returncode = run_command('make', '-sC', kernel_dir + '/build',
>   		'kernelversion').returncode()
>