linux-kernel - Re: [PATCH net-next 3/7] net: ethernet: ti: am65-cpsw-nuss: enable packet timestamping support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 5 May 2020 15:31:04 +0200
From:   Anders Roxell <anders.roxell@...aro.org>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     Richard Cochran <richardcochran@...il.com>,
        Murali Karicheri <m-karicheri2@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Tero Kristo <t-kristo@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Networking <netdev@...r.kernel.org>,
        Sekhar Nori <nsekhar@...com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Clay McClure <clay@...mons.net>
Subject: Re: [PATCH net-next 3/7] net: ethernet: ti: am65-cpsw-nuss: enable
 packet timestamping support

On Tue, 5 May 2020 at 14:20, Grygorii Strashko <grygorii.strashko@...com> wrote:
>
> Hi Anders,

Hi Grygorii,

>
> On 05/05/2020 14:59, Anders Roxell wrote:
> > On Tue, 5 May 2020 at 13:16, Anders Roxell <anders.roxell@...aro.org> wrote:
> >> On Tue, 5 May 2020 at 13:05, Grygorii Strashko <grygorii.strashko@...com> wrote:
> >>> On 05/05/2020 13:17, Anders Roxell wrote:
> >>>> On Fri, 1 May 2020 at 22:50, Grygorii Strashko <grygorii.strashko@...com> wrote:
> >>>>>
> >>>>> The MCU CPSW Common Platform Time Sync (CPTS) provides possibility to
> >>>>> timestamp TX PTP packets and all RX packets.
> >>>>>
> >>>>> This enables corresponding support in TI AM65x/J721E MCU CPSW driver.
> >>>>>
> >>>>> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
> >>>>> ---
> >>>>>    drivers/net/ethernet/ti/Kconfig             |   1 +
> >>>>>    drivers/net/ethernet/ti/am65-cpsw-ethtool.c |  24 ++-
> >>>>>    drivers/net/ethernet/ti/am65-cpsw-nuss.c    | 172 ++++++++++++++++++++
> >>>>>    drivers/net/ethernet/ti/am65-cpsw-nuss.h    |   6 +-
> >>>>>    4 files changed, 201 insertions(+), 2 deletions(-)
> >>>>>
> >>>>> diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> >>>>> index 1f4e5b6dc686..2c7bd1ccaaec 100644
> >>>>> --- a/drivers/net/ethernet/ti/Kconfig
> >>>>> +++ b/drivers/net/ethernet/ti/Kconfig
> >>>>> @@ -100,6 +100,7 @@ config TI_K3_AM65_CPSW_NUSS
> >>>>>           depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER
> >>>>>           select TI_DAVINCI_MDIO
> >>>>>           imply PHY_TI_GMII_SEL
> >>>>> +       imply TI_AM65_CPTS
> >>>>
> >>>> Should this be TI_K3_AM65_CPTS ?
> >
> > instead of 'imply TI_K3_AM65_CPTS' don't you want to do this:
> > 'depends on TI_K3_AM65_CPTS || !TI_K3_AM65_CPTS'
> >
> >
>
> Right, I'll try. It seems your defconfig is produced by randconfig as
> I can't get broken cfg TI_AM65_CPTS=m and TI_K3_AM65_CPSW_NUSS=y
> with neither one below:
>
>   make ARCH=arm64 O=k3-arm64 defconfig
>   make ARCH=arm64 O=k3-arm64 allnoconfig
>   make ARCH=arm64 O=k3-arm64 allyesconfig
>   make ARCH=arm64 O=k3-arm64 allmodconfig
>   make ARCH=arm64 O=k3-arm64 alldefconfig
>   make ARCH=arm64 O=k3-arm64 yes2modconfig
>   make ARCH=arm64 O=k3-arm64 mod2yesconfig

I'm so sorry, I forgot to tell you that I do my allmodconfig like this:

make ARCH=arm64 KCONFIG_ALLCONFIG=arch/arm64/configs/defconfig
O=k3-arm64 allmodconfig

Then I'm sure I should get a bootable kernel since that uses the
defconfig as a base...

Cheers,
Anders

>
> Related legacy TI CPTS threads:
>   https://lkml.org/lkml/2020/5/2/344
>   https://lkml.org/lkml/2020/5/1/1348
>
> I'd try summarize goal
>   TI_K3_AM65_CPSW_NUSS  TI_AM65_CPTS
>   Y                     Y/N
>   M                     Y/M/N
>   N                     Y/M/N
>
>
> --
> Best regards,
> grygorii