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* [PATCH] net: thunderx: start phy before starting autonegotiation
@ 2019-12-04 15:26 ` Mian Yousaf Kaukab
  0 siblings, 0 replies; 8+ messages in thread
From: Mian Yousaf Kaukab @ 2019-12-04 15:26 UTC (permalink / raw)
  To: netdev
  Cc: linux-kernel, linux-arm-kernel, tharvey, davem, rric, sgoutham,
	Mian Yousaf Kaukab

Since "2b3e88ea6528 net: phy: improve phy state checking"
phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
before calling phy_start_aneg() during probe so that autonegotiation
is initiated.

Network fails without this patch on Octeon TX.

Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
---
 drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 1e09fdb63c4f..504644257aff 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1115,6 +1115,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid)
 				       phy_interface_mode(lmac->lmac_type)))
 			return -ENODEV;
 
+		phy_start(lmac->phydev);
 		phy_start_aneg(lmac->phydev);
 		return 0;
 	}
-- 
2.16.4


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH] net: thunderx: start phy before starting autonegotiation
@ 2019-12-04 15:26 ` Mian Yousaf Kaukab
  0 siblings, 0 replies; 8+ messages in thread
From: Mian Yousaf Kaukab @ 2019-12-04 15:26 UTC (permalink / raw)
  To: netdev
  Cc: rric, tharvey, Mian Yousaf Kaukab, linux-kernel, sgoutham, davem,
	linux-arm-kernel

Since "2b3e88ea6528 net: phy: improve phy state checking"
phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
before calling phy_start_aneg() during probe so that autonegotiation
is initiated.

Network fails without this patch on Octeon TX.

Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
---
 drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 1e09fdb63c4f..504644257aff 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1115,6 +1115,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid)
 				       phy_interface_mode(lmac->lmac_type)))
 			return -ENODEV;
 
+		phy_start(lmac->phydev);
 		phy_start_aneg(lmac->phydev);
 		return 0;
 	}
-- 
2.16.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
  2019-12-04 15:26 ` Mian Yousaf Kaukab
@ 2019-12-04 15:42   ` Andrew Lunn
  -1 siblings, 0 replies; 8+ messages in thread
From: Andrew Lunn @ 2019-12-04 15:42 UTC (permalink / raw)
  To: Mian Yousaf Kaukab
  Cc: netdev, rric, tharvey, linux-kernel, sgoutham, davem, linux-arm-kernel

On Wed, Dec 04, 2019 at 04:26:51PM +0100, Mian Yousaf Kaukab wrote:
> Since "2b3e88ea6528 net: phy: improve phy state checking"
> phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
> before calling phy_start_aneg() during probe so that autonegotiation
> is initiated.
> 
> Network fails without this patch on Octeon TX.
> 
> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
> ---
>  drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> index 1e09fdb63c4f..504644257aff 100644
> --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> @@ -1115,6 +1115,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid)
>  				       phy_interface_mode(lmac->lmac_type)))
>  			return -ENODEV;
>  
> +		phy_start(lmac->phydev);
>  		phy_start_aneg(lmac->phydev);
>  		return 0;

phy_start() will start aneg, if aneg is configured. So you should be
able to remove the call to phy_start_aneg().

     Andrew

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
@ 2019-12-04 15:42   ` Andrew Lunn
  0 siblings, 0 replies; 8+ messages in thread
From: Andrew Lunn @ 2019-12-04 15:42 UTC (permalink / raw)
  To: Mian Yousaf Kaukab
  Cc: rric, netdev, tharvey, linux-kernel, sgoutham, davem, linux-arm-kernel

On Wed, Dec 04, 2019 at 04:26:51PM +0100, Mian Yousaf Kaukab wrote:
> Since "2b3e88ea6528 net: phy: improve phy state checking"
> phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
> before calling phy_start_aneg() during probe so that autonegotiation
> is initiated.
> 
> Network fails without this patch on Octeon TX.
> 
> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
> ---
>  drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> index 1e09fdb63c4f..504644257aff 100644
> --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
> @@ -1115,6 +1115,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid)
>  				       phy_interface_mode(lmac->lmac_type)))
>  			return -ENODEV;
>  
> +		phy_start(lmac->phydev);
>  		phy_start_aneg(lmac->phydev);
>  		return 0;

phy_start() will start aneg, if aneg is configured. So you should be
able to remove the call to phy_start_aneg().

     Andrew

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
  2019-12-04 15:26 ` Mian Yousaf Kaukab
@ 2019-12-04 15:43   ` Sergei Shtylyov
  -1 siblings, 0 replies; 8+ messages in thread
From: Sergei Shtylyov @ 2019-12-04 15:43 UTC (permalink / raw)
  To: Mian Yousaf Kaukab, netdev
  Cc: linux-kernel, linux-arm-kernel, tharvey, davem, rric, sgoutham

On 12/04/2019 06:26 PM, Mian Yousaf Kaukab wrote:

> Since "2b3e88ea6528 net: phy: improve phy state checking"

   Since 2b3e88ea6528 ("net: phy: improve phy state checking")

> phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
> before calling phy_start_aneg() during probe so that autonegotiation
> is initiated.
> 
> Network fails without this patch on Octeon TX.
> 
> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
[...]

MBR, Sergei

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
@ 2019-12-04 15:43   ` Sergei Shtylyov
  0 siblings, 0 replies; 8+ messages in thread
From: Sergei Shtylyov @ 2019-12-04 15:43 UTC (permalink / raw)
  To: Mian Yousaf Kaukab, netdev
  Cc: rric, tharvey, linux-kernel, sgoutham, davem, linux-arm-kernel

On 12/04/2019 06:26 PM, Mian Yousaf Kaukab wrote:

> Since "2b3e88ea6528 net: phy: improve phy state checking"

   Since 2b3e88ea6528 ("net: phy: improve phy state checking")

> phy_start_aneg() expects phy state to be >= PHY_UP. Call phy_start()
> before calling phy_start_aneg() during probe so that autonegotiation
> is initiated.
> 
> Network fails without this patch on Octeon TX.
> 
> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
[...]

MBR, Sergei

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
  2019-12-04 15:26 ` Mian Yousaf Kaukab
@ 2019-12-04 20:30   ` David Miller
  -1 siblings, 0 replies; 8+ messages in thread
From: David Miller @ 2019-12-04 20:30 UTC (permalink / raw)
  To: ykaukab; +Cc: netdev, linux-kernel, linux-arm-kernel, tharvey, rric, sgoutham

From: Mian Yousaf Kaukab <ykaukab@suse.de>
Date: Wed,  4 Dec 2019 16:26:51 +0100

> Since "2b3e88ea6528 net: phy: improve phy state checking"

As Sergei said, please format this properly and make it the
Fixes: tag.

Thank you.

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] net: thunderx: start phy before starting autonegotiation
@ 2019-12-04 20:30   ` David Miller
  0 siblings, 0 replies; 8+ messages in thread
From: David Miller @ 2019-12-04 20:30 UTC (permalink / raw)
  To: ykaukab; +Cc: rric, netdev, tharvey, linux-kernel, sgoutham, linux-arm-kernel

From: Mian Yousaf Kaukab <ykaukab@suse.de>
Date: Wed,  4 Dec 2019 16:26:51 +0100

> Since "2b3e88ea6528 net: phy: improve phy state checking"

As Sergei said, please format this properly and make it the
Fixes: tag.

Thank you.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2019-12-04 20:30 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-04 15:26 [PATCH] net: thunderx: start phy before starting autonegotiation Mian Yousaf Kaukab
2019-12-04 15:26 ` Mian Yousaf Kaukab
2019-12-04 15:42 ` Andrew Lunn
2019-12-04 15:42   ` Andrew Lunn
2019-12-04 15:43 ` Sergei Shtylyov
2019-12-04 15:43   ` Sergei Shtylyov
2019-12-04 20:30 ` David Miller
2019-12-04 20:30   ` David Miller

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