Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2018-01-03 Thread Russell King - ARM Linux 
On Wed, Jan 03, 2018 at 04:08:30PM +0100, Andrew Lunn wrote:
> > > >>> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> > > >>> index 4f8423a948d5..70459a28f3a1 100644
> > > >>> --- a/include/linux/phy/phy.h
> > > >>> +++ b/include/linux/phy/phy.h
> > > >>> @@ -28,6 +28,7 @@ enum phy_mode {
> > > >>>   PHY_MODE_USB_DEVICE,
> > > >>>   PHY_MODE_USB_OTG,
> > > >>>   PHY_MODE_SGMII,
> > > >>> + PHY_MODE_SGMII_2_5G,
> > > >>>   PHY_MODE_10GKR,
> > > >>>   PHY_MODE_UFS_HS_A,
> > > >>>   PHY_MODE_UFS_HS_B,
> > > >>
> > > >> There was a discussion maybe last month about adding 2.5G SGMII. I
> > > >> would prefer 2500SGMII. Putting the number first makes it uniform with
> > > >> the other defines, 1000BASEX, 25000BASEX, 10GKR.
> > > > 
> > > > Good to know. I wasn't completely sure how to name this mode properly,
> > > > but I'm fine with PHY_MODE_2500SGMII. I'll update the patches and send a
> > > > v2 (without the dt part).
> > > 
> > > And since you are respinning, please make sure you update phy_modes() in
> > > the same header file as well as
> > > Documentation/devicetree/bindings/net/ethernet.txt with the newly added
> > > PHY interface mode.
> > 
> > Actually it's a generic PHY mode I'm adding, not a network PHY mode.
> > There's no phy_modes() function for generic PHYs (and this 2500BaseX
> > mode already is supported in the network PHY modes).
> 
> Hi Antoine
> 
> Don't you need it in both include/linux/phy/phy.h and
> include/linux/phy.h?

Is it really 2.5G SGMII or 2.5G Base-X - iow, which configuration word
is permissible at 2.5G speeds for the pp2?  We already have 2500BASEX
in linux/phy.h, which is the 802.3z compliant 16-bit configuration
word rather than the Cisco variant.

-- 
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Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2018-01-03 Thread Andrew Lunn 
> > >>> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> > >>> index 4f8423a948d5..70459a28f3a1 100644
> > >>> --- a/include/linux/phy/phy.h
> > >>> +++ b/include/linux/phy/phy.h
> > >>> @@ -28,6 +28,7 @@ enum phy_mode {
> > >>> PHY_MODE_USB_DEVICE,
> > >>> PHY_MODE_USB_OTG,
> > >>> PHY_MODE_SGMII,
> > >>> +   PHY_MODE_SGMII_2_5G,
> > >>> PHY_MODE_10GKR,
> > >>> PHY_MODE_UFS_HS_A,
> > >>> PHY_MODE_UFS_HS_B,
> > >>
> > >> There was a discussion maybe last month about adding 2.5G SGMII. I
> > >> would prefer 2500SGMII. Putting the number first makes it uniform with
> > >> the other defines, 1000BASEX, 25000BASEX, 10GKR.
> > > 
> > > Good to know. I wasn't completely sure how to name this mode properly,
> > > but I'm fine with PHY_MODE_2500SGMII. I'll update the patches and send a
> > > v2 (without the dt part).
> > 
> > And since you are respinning, please make sure you update phy_modes() in
> > the same header file as well as
> > Documentation/devicetree/bindings/net/ethernet.txt with the newly added
> > PHY interface mode.
> 
> Actually it's a generic PHY mode I'm adding, not a network PHY mode.
> There's no phy_modes() function for generic PHYs (and this 2500BaseX
> mode already is supported in the network PHY modes).

Hi Antoine

Don't you need it in both include/linux/phy/phy.h and
include/linux/phy.h?

Andrew

Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2018-01-03 Thread Antoine Tenart 
Hi Florian,

On Thu, Dec 28, 2017 at 06:16:51AM -0800, Florian Fainelli wrote:
> On 12/28/2017 02:06 AM, Antoine Tenart wrote:
> > On Thu, Dec 28, 2017 at 08:20:53AM +0100, Andrew Lunn wrote:
> >> On Wed, Dec 27, 2017 at 11:14:41PM +0100, Antoine Tenart wrote:
> >>> This patch adds one more generic PHY mode to the phy_mode enum, to allow
> >>> configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
> >>> callback.
> >>>
> >>> Signed-off-by: Antoine Tenart 
> >>> ---
> >>>  include/linux/phy/phy.h | 1 +
> >>>  1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> >>> index 4f8423a948d5..70459a28f3a1 100644
> >>> --- a/include/linux/phy/phy.h
> >>> +++ b/include/linux/phy/phy.h
> >>> @@ -28,6 +28,7 @@ enum phy_mode {
> >>>   PHY_MODE_USB_DEVICE,
> >>>   PHY_MODE_USB_OTG,
> >>>   PHY_MODE_SGMII,
> >>> + PHY_MODE_SGMII_2_5G,
> >>>   PHY_MODE_10GKR,
> >>>   PHY_MODE_UFS_HS_A,
> >>>   PHY_MODE_UFS_HS_B,
> >>
> >> There was a discussion maybe last month about adding 2.5G SGMII. I
> >> would prefer 2500SGMII. Putting the number first makes it uniform with
> >> the other defines, 1000BASEX, 25000BASEX, 10GKR.
> > 
> > Good to know. I wasn't completely sure how to name this mode properly,
> > but I'm fine with PHY_MODE_2500SGMII. I'll update the patches and send a
> > v2 (without the dt part).
> 
> And since you are respinning, please make sure you update phy_modes() in
> the same header file as well as
> Documentation/devicetree/bindings/net/ethernet.txt with the newly added
> PHY interface mode.

Actually it's a generic PHY mode I'm adding, not a network PHY mode.
There's no phy_modes() function for generic PHYs (and this 2500BaseX
mode already is supported in the network PHY modes).

Thanks!
Antoine

-- 
Antoine Ténart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2017-12-28 Thread Antoine Tenart 
Hi Florian,

On Thu, Dec 28, 2017 at 06:16:51AM -0800, Florian Fainelli wrote:
> 
> And since you are respinning, please make sure you update phy_modes() in
> the same header file as well as
> Documentation/devicetree/bindings/net/ethernet.txt with the newly added
> PHY interface mode.

You're right. Thanks for pointing this out!

Antoine

-- 
Antoine Ténart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2017-12-28 Thread Florian Fainelli 


On 12/28/2017 02:06 AM, Antoine Tenart wrote:
> Hi Andrew,
> 
> On Thu, Dec 28, 2017 at 08:20:53AM +0100, Andrew Lunn wrote:
>> On Wed, Dec 27, 2017 at 11:14:41PM +0100, Antoine Tenart wrote:
>>> This patch adds one more generic PHY mode to the phy_mode enum, to allow
>>> configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
>>> callback.
>>>
>>> Signed-off-by: Antoine Tenart 
>>> ---
>>>  include/linux/phy/phy.h | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
>>> index 4f8423a948d5..70459a28f3a1 100644
>>> --- a/include/linux/phy/phy.h
>>> +++ b/include/linux/phy/phy.h
>>> @@ -28,6 +28,7 @@ enum phy_mode {
>>> PHY_MODE_USB_DEVICE,
>>> PHY_MODE_USB_OTG,
>>> PHY_MODE_SGMII,
>>> +   PHY_MODE_SGMII_2_5G,
>>> PHY_MODE_10GKR,
>>> PHY_MODE_UFS_HS_A,
>>> PHY_MODE_UFS_HS_B,
>>
>> There was a discussion maybe last month about adding 2.5G SGMII. I
>> would prefer 2500SGMII. Putting the number first makes it uniform with
>> the other defines, 1000BASEX, 25000BASEX, 10GKR.
> 
> Good to know. I wasn't completely sure how to name this mode properly,
> but I'm fine with PHY_MODE_2500SGMII. I'll update the patches and send a
> v2 (without the dt part).

And since you are respinning, please make sure you update phy_modes() in
the same header file as well as
Documentation/devicetree/bindings/net/ethernet.txt with the newly added
PHY interface mode.
-- 
Florian

Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2017-12-28 Thread Antoine Tenart 
Hi Andrew,

On Thu, Dec 28, 2017 at 08:20:53AM +0100, Andrew Lunn wrote:
> On Wed, Dec 27, 2017 at 11:14:41PM +0100, Antoine Tenart wrote:
> > This patch adds one more generic PHY mode to the phy_mode enum, to allow
> > configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
> > callback.
> > 
> > Signed-off-by: Antoine Tenart 
> > ---
> >  include/linux/phy/phy.h | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> > index 4f8423a948d5..70459a28f3a1 100644
> > --- a/include/linux/phy/phy.h
> > +++ b/include/linux/phy/phy.h
> > @@ -28,6 +28,7 @@ enum phy_mode {
> > PHY_MODE_USB_DEVICE,
> > PHY_MODE_USB_OTG,
> > PHY_MODE_SGMII,
> > +   PHY_MODE_SGMII_2_5G,
> > PHY_MODE_10GKR,
> > PHY_MODE_UFS_HS_A,
> > PHY_MODE_UFS_HS_B,
> 
> There was a discussion maybe last month about adding 2.5G SGMII. I
> would prefer 2500SGMII. Putting the number first makes it uniform with
> the other defines, 1000BASEX, 25000BASEX, 10GKR.

Good to know. I wasn't completely sure how to name this mode properly,
but I'm fine with PHY_MODE_2500SGMII. I'll update the patches and send a
v2 (without the dt part).

Thanks!
Antoine

-- 
Antoine Ténart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Re: [PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2017-12-27 Thread Andrew Lunn 
On Wed, Dec 27, 2017 at 11:14:41PM +0100, Antoine Tenart wrote:
> This patch adds one more generic PHY mode to the phy_mode enum, to allow
> configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
> callback.
> 
> Signed-off-by: Antoine Tenart 
> ---
>  include/linux/phy/phy.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
> index 4f8423a948d5..70459a28f3a1 100644
> --- a/include/linux/phy/phy.h
> +++ b/include/linux/phy/phy.h
> @@ -28,6 +28,7 @@ enum phy_mode {
>   PHY_MODE_USB_DEVICE,
>   PHY_MODE_USB_OTG,
>   PHY_MODE_SGMII,
> + PHY_MODE_SGMII_2_5G,
>   PHY_MODE_10GKR,
>   PHY_MODE_UFS_HS_A,
>   PHY_MODE_UFS_HS_B,

Hi Antoine

There was a discussion maybe last month about adding 2.5G SGMII. I
would prefer 2500SGMII. Putting the number first makes it uniform with
the other defines, 1000BASEX, 25000BASEX, 10GKR.

Andrew

[PATCH net-next 1/6] phy: add 2.5G SGMII mode to the phy_mode enum

2017-12-27 Thread Antoine Tenart 
This patch adds one more generic PHY mode to the phy_mode enum, to allow
configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
callback.

Signed-off-by: Antoine Tenart 
---
 include/linux/phy/phy.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 4f8423a948d5..70459a28f3a1 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -28,6 +28,7 @@ enum phy_mode {
PHY_MODE_USB_DEVICE,
PHY_MODE_USB_OTG,
PHY_MODE_SGMII,
+   PHY_MODE_SGMII_2_5G,
PHY_MODE_10GKR,
PHY_MODE_UFS_HS_A,
PHY_MODE_UFS_HS_B,
-- 
2.14.3