diff mbox series

[v2,3/5] phy: ocelot-serdes: convert to use eth phy mode and submode

Message ID 20181109234755.21687-4-grygorii.strashko@ti.com (mailing list archive)
State New, archived
Headers show
Series phy: core: rework phy_set_mode to accept phy mode and submode | expand

Commit Message

Grygorii Strashko Nov. 9, 2018, 11:47 p.m. UTC 
Convert ocelot-serdes PHY driver to use recently introduced
PHY_MODE_ETHERNET and phy_set_mode_ext().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
 drivers/net/ethernet/mscc/ocelot.c   |  9 ++-------
 drivers/phy/mscc/phy-ocelot-serdes.c | 14 ++++++++++----
 2 files changed, 12 insertions(+), 11 deletions(-)

Comments

Kishon Vijay Abraham I Nov. 12, 2018, 10:42 a.m. UTC | #1 
Hi Quentin, David Miller

Need your ACK on this patch.

Thanks
Kishon

On 10/11/18 5:17 AM, Grygorii Strashko wrote:
> Convert ocelot-serdes PHY driver to use recently introduced
> PHY_MODE_ETHERNET and phy_set_mode_ext().
> 
> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
> ---
>  drivers/net/ethernet/mscc/ocelot.c   |  9 ++-------
>  drivers/phy/mscc/phy-ocelot-serdes.c | 14 ++++++++++----
>  2 files changed, 12 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
> index 3238b9e..3edb608 100644
> --- a/drivers/net/ethernet/mscc/ocelot.c
> +++ b/drivers/net/ethernet/mscc/ocelot.c
> @@ -472,7 +472,6 @@ static int ocelot_port_open(struct net_device *dev)
>  {
>  	struct ocelot_port *port = netdev_priv(dev);
>  	struct ocelot *ocelot = port->ocelot;
> -	enum phy_mode phy_mode;
>  	int err;
>  
>  	/* Enable receiving frames on the port, and activate auto-learning of
> @@ -484,12 +483,8 @@ static int ocelot_port_open(struct net_device *dev)
>  			 ANA_PORT_PORT_CFG, port->chip_port);
>  
>  	if (port->serdes) {
> -		if (port->phy_mode == PHY_INTERFACE_MODE_SGMII)
> -			phy_mode = PHY_MODE_SGMII;
> -		else
> -			phy_mode = PHY_MODE_QSGMII;
> -
> -		err = phy_set_mode(port->serdes, phy_mode);
> +		err = phy_set_mode_ext(port->serdes, PHY_MODE_ETHERNET,
> +				       port->phy_mode);
>  		if (err) {
>  			netdev_err(dev, "Could not set mode of SerDes\n");
>  			return err;
> diff --git a/drivers/phy/mscc/phy-ocelot-serdes.c b/drivers/phy/mscc/phy-ocelot-serdes.c
> index c61a9890..f525a21 100644
> --- a/drivers/phy/mscc/phy-ocelot-serdes.c
> +++ b/drivers/phy/mscc/phy-ocelot-serdes.c
> @@ -11,6 +11,7 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/of_platform.h>
> +#include <linux/phy.h>
>  #include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
> @@ -116,8 +117,10 @@ struct serdes_mux {
>  	.mux = _mux,						\
>  }
>  
> -#define SERDES_MUX_SGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_SGMII, m, c)
> -#define SERDES_MUX_QSGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_QSGMII, m, c)
> +#define SERDES_MUX_SGMII(i, p, m, c) \
> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_SGMII, m, c)
> +#define SERDES_MUX_QSGMII(i, p, m, c) \
> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_QSGMII, m, c)
>  
>  static const struct serdes_mux ocelot_serdes_muxes[] = {
>  	SERDES_MUX_SGMII(SERDES1G(0), 0, 0, 0),
> @@ -164,12 +167,15 @@ static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
>  	unsigned int i;
>  	int ret;
>  
> +	if (mode != PHY_MODE_ETHERNET)
> +		return -EINVAL;
> +
>  	for (i = 0; i < ARRAY_SIZE(ocelot_serdes_muxes); i++) {
>  		if (macro->idx != ocelot_serdes_muxes[i].idx ||
> -		    mode != ocelot_serdes_muxes[i].mode)
> +		    submode != ocelot_serdes_muxes[i].mode)
>  			continue;
>  
> -		if (mode != PHY_MODE_QSGMII &&
> +		if (submode != PHY_INTERFACE_MODE_QSGMII &&
>  		    macro->port != ocelot_serdes_muxes[i].port)
>  			continue;
>  
>
Quentin Schulz Nov. 16, 2018, 11:15 a.m. UTC | #2 
Hi Grygorii,

On Fri, Nov 09, 2018 at 05:47:53PM -0600, Grygorii Strashko wrote:
> Convert ocelot-serdes PHY driver to use recently introduced
> PHY_MODE_ETHERNET and phy_set_mode_ext().
> 

Thanks for the patch, it's annoying to have to map PHY_MODE_SGMII and
PHY_INTERFACE_MODE_SGMII :)

> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
> ---
>  drivers/net/ethernet/mscc/ocelot.c   |  9 ++-------
>  drivers/phy/mscc/phy-ocelot-serdes.c | 14 ++++++++++----
>  2 files changed, 12 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
> index 3238b9e..3edb608 100644
> --- a/drivers/net/ethernet/mscc/ocelot.c
> +++ b/drivers/net/ethernet/mscc/ocelot.c
> @@ -472,7 +472,6 @@ static int ocelot_port_open(struct net_device *dev)
>  {
>  	struct ocelot_port *port = netdev_priv(dev);
>  	struct ocelot *ocelot = port->ocelot;
> -	enum phy_mode phy_mode;
>  	int err;
>  
>  	/* Enable receiving frames on the port, and activate auto-learning of
> @@ -484,12 +483,8 @@ static int ocelot_port_open(struct net_device *dev)
>  			 ANA_PORT_PORT_CFG, port->chip_port);
>  
>  	if (port->serdes) {
> -		if (port->phy_mode == PHY_INTERFACE_MODE_SGMII)
> -			phy_mode = PHY_MODE_SGMII;
> -		else
> -			phy_mode = PHY_MODE_QSGMII;
> -
> -		err = phy_set_mode(port->serdes, phy_mode);
> +		err = phy_set_mode_ext(port->serdes, PHY_MODE_ETHERNET,
> +				       port->phy_mode);
>  		if (err) {
>  			netdev_err(dev, "Could not set mode of SerDes\n");
>  			return err;
> diff --git a/drivers/phy/mscc/phy-ocelot-serdes.c b/drivers/phy/mscc/phy-ocelot-serdes.c
> index c61a9890..f525a21 100644
> --- a/drivers/phy/mscc/phy-ocelot-serdes.c
> +++ b/drivers/phy/mscc/phy-ocelot-serdes.c
> @@ -11,6 +11,7 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/of_platform.h>
> +#include <linux/phy.h>
>  #include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
> @@ -116,8 +117,10 @@ struct serdes_mux {
>  	.mux = _mux,						\
>  }
>  
> -#define SERDES_MUX_SGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_SGMII, m, c)
> -#define SERDES_MUX_QSGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_QSGMII, m, c)
> +#define SERDES_MUX_SGMII(i, p, m, c) \
> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_SGMII, m, c)
> +#define SERDES_MUX_QSGMII(i, p, m, c) \
> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_QSGMII, m, c)
>  
>  static const struct serdes_mux ocelot_serdes_muxes[] = {
>  	SERDES_MUX_SGMII(SERDES1G(0), 0, 0, 0),
> @@ -164,12 +167,15 @@ static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
>  	unsigned int i;
>  	int ret;
>  
> +	if (mode != PHY_MODE_ETHERNET)
> +		return -EINVAL;
> +

This works for now because we only support Ethernet muxes for now but
this IP also supports PHY_MODE_PCIE.

It seems weird to me that the day we'll add support for PCIE muxing we
will have in ocelot_serdes_muxes[i].mode either a PHY_INTERFACE_MODE_*
or a PHY_MODE_PCIE. This is not an issue for now since you do the mode
!= PHY_MODE_ETHERNET just above but once we get rid of this, we only
test for submode != ocelot_serdes_muxes[i].mode and both
PHY_INTERFACE_MODE_1000BASEX and PHY_MODE_PCIE will have the same index
thus might be confused.

Should we add a submode to the SERDES_MUX macro, move PHY_MODE_*MII to
this submode and have PHY_MODE_ETHERNET/PCIE in the mode field?

Thanks,
Quentin
Grygorii Strashko Nov. 16, 2018, 9 p.m. UTC | #3 
On 11/16/18 5:15 AM, Quentin Schulz wrote:
> Hi Grygorii,
> 
> On Fri, Nov 09, 2018 at 05:47:53PM -0600, Grygorii Strashko wrote:
>> Convert ocelot-serdes PHY driver to use recently introduced
>> PHY_MODE_ETHERNET and phy_set_mode_ext().
>>
> 
> Thanks for the patch, it's annoying to have to map PHY_MODE_SGMII and
> PHY_INTERFACE_MODE_SGMII :)
> 
>> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
>> ---
>>   drivers/net/ethernet/mscc/ocelot.c   |  9 ++-------
>>   drivers/phy/mscc/phy-ocelot-serdes.c | 14 ++++++++++----
>>   2 files changed, 12 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
>> index 3238b9e..3edb608 100644
>> --- a/drivers/net/ethernet/mscc/ocelot.c
>> +++ b/drivers/net/ethernet/mscc/ocelot.c
>> @@ -472,7 +472,6 @@ static int ocelot_port_open(struct net_device *dev)
>>   {
>>   	struct ocelot_port *port = netdev_priv(dev);
>>   	struct ocelot *ocelot = port->ocelot;
>> -	enum phy_mode phy_mode;
>>   	int err;
>>   
>>   	/* Enable receiving frames on the port, and activate auto-learning of
>> @@ -484,12 +483,8 @@ static int ocelot_port_open(struct net_device *dev)
>>   			 ANA_PORT_PORT_CFG, port->chip_port);
>>   
>>   	if (port->serdes) {
>> -		if (port->phy_mode == PHY_INTERFACE_MODE_SGMII)
>> -			phy_mode = PHY_MODE_SGMII;
>> -		else
>> -			phy_mode = PHY_MODE_QSGMII;
>> -
>> -		err = phy_set_mode(port->serdes, phy_mode);
>> +		err = phy_set_mode_ext(port->serdes, PHY_MODE_ETHERNET,
>> +				       port->phy_mode);
>>   		if (err) {
>>   			netdev_err(dev, "Could not set mode of SerDes\n");
>>   			return err;
>> diff --git a/drivers/phy/mscc/phy-ocelot-serdes.c b/drivers/phy/mscc/phy-ocelot-serdes.c
>> index c61a9890..f525a21 100644
>> --- a/drivers/phy/mscc/phy-ocelot-serdes.c
>> +++ b/drivers/phy/mscc/phy-ocelot-serdes.c
>> @@ -11,6 +11,7 @@
>>   #include <linux/module.h>
>>   #include <linux/of.h>
>>   #include <linux/of_platform.h>
>> +#include <linux/phy.h>
>>   #include <linux/phy/phy.h>
>>   #include <linux/platform_device.h>
>>   #include <linux/regmap.h>
>> @@ -116,8 +117,10 @@ struct serdes_mux {
>>   	.mux = _mux,						\
>>   }
>>   
>> -#define SERDES_MUX_SGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_SGMII, m, c)
>> -#define SERDES_MUX_QSGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_QSGMII, m, c)
>> +#define SERDES_MUX_SGMII(i, p, m, c) \
>> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_SGMII, m, c)
>> +#define SERDES_MUX_QSGMII(i, p, m, c) \
>> +	SERDES_MUX(i, p, PHY_INTERFACE_MODE_QSGMII, m, c)
>>   
>>   static const struct serdes_mux ocelot_serdes_muxes[] = {
>>   	SERDES_MUX_SGMII(SERDES1G(0), 0, 0, 0),
>> @@ -164,12 +167,15 @@ static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
>>   	unsigned int i;
>>   	int ret;
>>   
>> +	if (mode != PHY_MODE_ETHERNET)
>> +		return -EINVAL;
>> +
> 
> This works for now because we only support Ethernet muxes for now but
> this IP also supports PHY_MODE_PCIE.
> 
> It seems weird to me that the day we'll add support for PCIE muxing we
> will have in ocelot_serdes_muxes[i].mode either a PHY_INTERFACE_MODE_*
> or a PHY_MODE_PCIE. This is not an issue for now since you do the mode
> != PHY_MODE_ETHERNET just above but once we get rid of this, we only
> test for submode != ocelot_serdes_muxes[i].mode and both
> PHY_INTERFACE_MODE_1000BASEX and PHY_MODE_PCIE will have the same index
> thus might be confused.
> 
> Should we add a submode to the SERDES_MUX macro, move PHY_MODE_*MII to
> this submode and have PHY_MODE_ETHERNET/PCIE in the mode field?

Yeh. You are right. I'll update it this way.
I have no hw, so hope you will be able to help with review/testing.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 3238b9e..3edb608 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -472,7 +472,6 @@  static int ocelot_port_open(struct net_device *dev)
 {
 	struct ocelot_port *port = netdev_priv(dev);
 	struct ocelot *ocelot = port->ocelot;
-	enum phy_mode phy_mode;
 	int err;
 
 	/* Enable receiving frames on the port, and activate auto-learning of
@@ -484,12 +483,8 @@  static int ocelot_port_open(struct net_device *dev)
 			 ANA_PORT_PORT_CFG, port->chip_port);
 
 	if (port->serdes) {
-		if (port->phy_mode == PHY_INTERFACE_MODE_SGMII)
-			phy_mode = PHY_MODE_SGMII;
-		else
-			phy_mode = PHY_MODE_QSGMII;
-
-		err = phy_set_mode(port->serdes, phy_mode);
+		err = phy_set_mode_ext(port->serdes, PHY_MODE_ETHERNET,
+				       port->phy_mode);
 		if (err) {
 			netdev_err(dev, "Could not set mode of SerDes\n");
 			return err;
diff --git a/drivers/phy/mscc/phy-ocelot-serdes.c b/drivers/phy/mscc/phy-ocelot-serdes.c
index c61a9890..f525a21 100644
--- a/drivers/phy/mscc/phy-ocelot-serdes.c
+++ b/drivers/phy/mscc/phy-ocelot-serdes.c
@@ -11,6 +11,7 @@ 
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/phy.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
@@ -116,8 +117,10 @@  struct serdes_mux {
 	.mux = _mux,						\
 }
 
-#define SERDES_MUX_SGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_SGMII, m, c)
-#define SERDES_MUX_QSGMII(i, p, m, c) SERDES_MUX(i, p, PHY_MODE_QSGMII, m, c)
+#define SERDES_MUX_SGMII(i, p, m, c) \
+	SERDES_MUX(i, p, PHY_INTERFACE_MODE_SGMII, m, c)
+#define SERDES_MUX_QSGMII(i, p, m, c) \
+	SERDES_MUX(i, p, PHY_INTERFACE_MODE_QSGMII, m, c)
 
 static const struct serdes_mux ocelot_serdes_muxes[] = {
 	SERDES_MUX_SGMII(SERDES1G(0), 0, 0, 0),
@@ -164,12 +167,15 @@  static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
 	unsigned int i;
 	int ret;
 
+	if (mode != PHY_MODE_ETHERNET)
+		return -EINVAL;
+
 	for (i = 0; i < ARRAY_SIZE(ocelot_serdes_muxes); i++) {
 		if (macro->idx != ocelot_serdes_muxes[i].idx ||
-		    mode != ocelot_serdes_muxes[i].mode)
+		    submode != ocelot_serdes_muxes[i].mode)
 			continue;
 
-		if (mode != PHY_MODE_QSGMII &&
+		if (submode != PHY_INTERFACE_MODE_QSGMII &&
 		    macro->port != ocelot_serdes_muxes[i].port)
 			continue;