[PATCH] doc: update oldest supported kernel

[PATCH] doc: update oldest supported kernel

[Stephen Hemminger]

The DPDK needs to stay up to date with current LTS Linux kernel support.
If the kernel is older than LTS it is likely to be insecure and buggy.
Therefore only require DPDK to work on oldest LTS kernel.

If distribution vendors want to support DPDK on older kernels, that is
their choice. But the upstream source does not need to be cluttered
with support for this.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index eb8442c62226..b335da2c086d 100644
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -121,8 +121,10 @@ System Software
 
 **Required:**
 
-*   Kernel version >= 2.6.34
+*   Kernel version >= 3.2.93
 
+    The kernel version required is based on the oldest long term stable kernel available
+    at kernel.org when the DPDK version is released.
     The kernel version in use can be checked using the command::
 
         uname -r
-- 
2.11.0

Re: [PATCH] doc: update oldest supported kernel

[Mcnamara, John]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Stephen Hemminger
> Sent: Tuesday, September 26, 2017 8:17 AM
> To: dev@dpdk.org
> Cc: Stephen Hemminger <stephen@networkplumber.org>
> Subject: [dpdk-dev] [PATCH] doc: update oldest supported kernel
> 
> The DPDK needs to stay up to date with current LTS Linux kernel support.
> If the kernel is older than LTS it is likely to be insecure and buggy.
> Therefore only require DPDK to work on oldest LTS kernel.
> 
> If distribution vendors want to support DPDK on older kernels, that is
> their choice. But the upstream source does not need to be cluttered with
> support for this.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/guides/linux_gsg/sys_reqs.rst
> b/doc/guides/linux_gsg/sys_reqs.rst
> index eb8442c62226..b335da2c086d 100644
> --- a/doc/guides/linux_gsg/sys_reqs.rst
> +++ b/doc/guides/linux_gsg/sys_reqs.rst
> @@ -121,8 +121,10 @@ System Software
> 
>  **Required:**
> 
> -*   Kernel version >= 2.6.34
> +*   Kernel version >= 3.2.93
> 
> +    The kernel version required is based on the oldest long term stable
> kernel available
> +    at kernel.org when the DPDK version is released.

Hi,

OSV people, any objection to this?

John

Re: [PATCH] doc: update oldest supported kernel

[Luca Boccassi]

On Tue, 2017-09-26 at 08:17 +0100, Stephen Hemminger wrote:
> The DPDK needs to stay up to date with current LTS Linux kernel
> support.
> If the kernel is older than LTS it is likely to be insecure and
> buggy.
> Therefore only require DPDK to work on oldest LTS kernel.
> 
> If distribution vendors want to support DPDK on older kernels, that
> is
> their choice. But the upstream source does not need to be cluttered
> with support for this.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/guides/linux_gsg/sys_reqs.rst
> b/doc/guides/linux_gsg/sys_reqs.rst
> index eb8442c62226..b335da2c086d 100644
> --- a/doc/guides/linux_gsg/sys_reqs.rst
> +++ b/doc/guides/linux_gsg/sys_reqs.rst
> @@ -121,8 +121,10 @@ System Software
>  
>  **Required:**
>  
> -*   Kernel version >= 2.6.34
> +*   Kernel version >= 3.2.93
>  
> +    The kernel version required is based on the oldest long term
> stable kernel available
> +    at kernel.org when the DPDK version is released.
>      The kernel version in use can be checked using the command::
>  
>          uname -r

Acked-by: Luca Boccassi <bluca@debian.org>

-- 
Kind regards,
Luca Boccassi

Re: [PATCH] doc: update oldest supported kernel

[Luca Boccassi]

On Fri, 2017-10-13 at 15:49 +0000, Mcnamara, John wrote:
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Stephen
> > Hemminger
> > Sent: Tuesday, September 26, 2017 8:17 AM
> > To: dev@dpdk.org
> > Cc: Stephen Hemminger <stephen@networkplumber.org>
> > Subject: [dpdk-dev] [PATCH] doc: update oldest supported kernel
> > 
> > The DPDK needs to stay up to date with current LTS Linux kernel
> > support.
> > If the kernel is older than LTS it is likely to be insecure and
> > buggy.
> > Therefore only require DPDK to work on oldest LTS kernel.
> > 
> > If distribution vendors want to support DPDK on older kernels, that
> > is
> > their choice. But the upstream source does not need to be cluttered
> > with
> > support for this.
> > 
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> > ---
> >  doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/doc/guides/linux_gsg/sys_reqs.rst
> > b/doc/guides/linux_gsg/sys_reqs.rst
> > index eb8442c62226..b335da2c086d 100644
> > --- a/doc/guides/linux_gsg/sys_reqs.rst
> > +++ b/doc/guides/linux_gsg/sys_reqs.rst
> > @@ -121,8 +121,10 @@ System Software
> > 
> >  **Required:**
> > 
> > -*   Kernel version >= 2.6.34
> > +*   Kernel version >= 3.2.93
> > 
> > +    The kernel version required is based on the oldest long term
> > stable
> > kernel available
> > +    at kernel.org when the DPDK version is released.
> 
> Hi,
> 
> OSV people, any objection to this?
> 
> John

IMHO oldest LTS is a reasonable requirement.

-- 
Kind regards,
Luca Boccassi

Re: [PATCH] doc: update oldest supported kernel

[Thomas Monjalon]

26/09/2017 09:17, Stephen Hemminger:
> The DPDK needs to stay up to date with current LTS Linux kernel support.
> If the kernel is older than LTS it is likely to be insecure and buggy.
> Therefore only require DPDK to work on oldest LTS kernel.
> 
> If distribution vendors want to support DPDK on older kernels, that is
> their choice. But the upstream source does not need to be cluttered
> with support for this.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
[...]
>  **Required:**
>  
> -*   Kernel version >= 2.6.34
> +*   Kernel version >= 3.2.93

I think we should not specify any minor number. 3.2 is enough.

It would make more sense to change this constraint at the beginning
of a release cycle.

Re: [PATCH] doc: update oldest supported kernel

[Ferruh Yigit]

On 11/11/2017 8:30 PM, Thomas Monjalon wrote:
> 26/09/2017 09:17, Stephen Hemminger:
>> The DPDK needs to stay up to date with current LTS Linux kernel support.
>> If the kernel is older than LTS it is likely to be insecure and buggy.
>> Therefore only require DPDK to work on oldest LTS kernel.
>>
>> If distribution vendors want to support DPDK on older kernels, that is
>> their choice. But the upstream source does not need to be cluttered
>> with support for this.
>>
>> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
>> ---
>>  doc/guides/linux_gsg/sys_reqs.rst | 4 +++-
> [...]
>>  **Required:**
>>  
>> -*   Kernel version >= 2.6.34
>> +*   Kernel version >= 3.2.93
> 
> I think we should not specify any minor number. 3.2 is enough.
> 
> It would make more sense to change this constraint at the beginning
> of a release cycle.

If agreed on this, I can send a few cleanup patches for kni and igb_uio after
this patch applied.

> 

[PATCH v2] doc: update oldest supported kernel in Linux guide

[Thomas Monjalon]

From: Stephen Hemminger <stephen@networkplumber.org>

The DPDK needs to stay up to date with current LTS Linux kernel support.
If the kernel is older than LTS it is likely to be insecure and buggy.
Therefore only require DPDK to work on oldest LTS kernel.

If distribution vendors want to support DPDK on older kernels, that is
their choice. But the upstream source does not need to be cluttered
with support for this.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 doc/guides/linux_gsg/sys_reqs.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 3e7fe6373..5ff740fc4 100644
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -121,7 +121,10 @@ System Software
 
 **Required:**
 
-*   Kernel version >= 2.6.34
+*   Kernel version >= 3.2
+
+    The kernel version required is based on the oldest long term stable kernel available
+    at kernel.org when the DPDK version is in development.
 
     The kernel version in use can be checked using the command::
 
-- 
2.15.0

Re: [PATCH v2] doc: update oldest supported kernel in Linux guide

[Kovacevic, Marko]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Tuesday, November 28, 2017 10:02 PM
> To: dev@dpdk.org
> Cc: stephen@networkplumber.org; bluca@debian.org
> Subject: [dpdk-dev] [PATCH v2] doc: update oldest supported kernel in Linux
> guide
> 
> From: Stephen Hemminger <stephen@networkplumber.org>

Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>

Re: [PATCH v2] doc: update oldest supported kernel in Linux guide

[Thomas Monjalon]

12/12/2017 15:20, Kovacevic, Marko:
> 
> > From: Stephen Hemminger <stephen@networkplumber.org>
> 
> Acked-by: Marko Kovacevic <marko.kovacevic@intel.com>

Applied