diff mbox series

[net-next,v2,3/3] net: mvpp2: update mvpp2 validate() implementation

Message ID E1ifpZs-0005kJ-Ll@rmk-PC.armlinux.org.uk
State Accepted
Delegated to: David Miller
Headers show
Series improve clause 45 support in phylink | expand

Commit Message

Russell King (Oracle) Dec. 13, 2019, 6:22 p.m. UTC
Fix up the mvpp2 validate implementation to adopt the same behaviour as
mvneta:
- only allow the link modes that the specified PHY interface mode
  supports with the exception of 1000base-X and 2500base-X.
- use the basex helper to deal with SFP modules that can be switched
  between 1000base-X vs 2500base-X.

This gives consistent behaviour between mvneta and mvpp2.

This commit depends on "net: phylink: extend clause 45 PHY validation
workaround" so is not marked for backporting to stable kernels.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   | 22 +++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

Comments

Antoine Tenart Dec. 17, 2019, 10:48 a.m. UTC | #1
Hello Russell,

On Fri, Dec 13, 2019 at 06:22:12PM +0000, Russell King wrote:
> Fix up the mvpp2 validate implementation to adopt the same behaviour as
> mvneta:
> - only allow the link modes that the specified PHY interface mode
>   supports with the exception of 1000base-X and 2500base-X.
> - use the basex helper to deal with SFP modules that can be switched
>   between 1000base-X vs 2500base-X.
> 
> This gives consistent behaviour between mvneta and mvpp2.
> 
> This commit depends on "net: phylink: extend clause 45 PHY validation
> workaround" so is not marked for backporting to stable kernels.
> 
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

> ---
>  .../net/ethernet/marvell/mvpp2/mvpp2_main.c   | 22 +++++++++++++++----
>  1 file changed, 18 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> index 111b3b8239e1..f09fcbe6ea88 100644
> --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> @@ -4786,6 +4786,8 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
>  			phylink_set(mask, 10000baseER_Full);
>  			phylink_set(mask, 10000baseKR_Full);
>  		}
> +		if (state->interface != PHY_INTERFACE_MODE_NA)
> +			break;
>  		/* Fall-through */
>  	case PHY_INTERFACE_MODE_RGMII:
>  	case PHY_INTERFACE_MODE_RGMII_ID:
> @@ -4796,13 +4798,23 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
>  		phylink_set(mask, 10baseT_Full);
>  		phylink_set(mask, 100baseT_Half);
>  		phylink_set(mask, 100baseT_Full);
> +		phylink_set(mask, 1000baseT_Full);
> +		phylink_set(mask, 1000baseX_Full);
> +		if (state->interface != PHY_INTERFACE_MODE_NA)
> +			break;
>  		/* Fall-through */
>  	case PHY_INTERFACE_MODE_1000BASEX:
>  	case PHY_INTERFACE_MODE_2500BASEX:
> -		phylink_set(mask, 1000baseT_Full);
> -		phylink_set(mask, 1000baseX_Full);
> -		phylink_set(mask, 2500baseT_Full);
> -		phylink_set(mask, 2500baseX_Full);
> +		if (port->comphy ||
> +		    state->interface != PHY_INTERFACE_MODE_2500BASEX) {
> +			phylink_set(mask, 1000baseT_Full);
> +			phylink_set(mask, 1000baseX_Full);
> +		}
> +		if (port->comphy ||
> +		    state->interface == PHY_INTERFACE_MODE_2500BASEX) {
> +			phylink_set(mask, 2500baseT_Full);
> +			phylink_set(mask, 2500baseX_Full);
> +		}
>  		break;
>  	default:
>  		goto empty_set;
> @@ -4811,6 +4823,8 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
>  	bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS);
>  	bitmap_and(state->advertising, state->advertising, mask,
>  		   __ETHTOOL_LINK_MODE_MASK_NBITS);
> +
> +	phylink_helper_basex_speed(state);
>  	return;
>  
>  empty_set:
> -- 
> 2.20.1
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 111b3b8239e1..f09fcbe6ea88 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4786,6 +4786,8 @@  static void mvpp2_phylink_validate(struct phylink_config *config,
 			phylink_set(mask, 10000baseER_Full);
 			phylink_set(mask, 10000baseKR_Full);
 		}
+		if (state->interface != PHY_INTERFACE_MODE_NA)
+			break;
 		/* Fall-through */
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
@@ -4796,13 +4798,23 @@  static void mvpp2_phylink_validate(struct phylink_config *config,
 		phylink_set(mask, 10baseT_Full);
 		phylink_set(mask, 100baseT_Half);
 		phylink_set(mask, 100baseT_Full);
+		phylink_set(mask, 1000baseT_Full);
+		phylink_set(mask, 1000baseX_Full);
+		if (state->interface != PHY_INTERFACE_MODE_NA)
+			break;
 		/* Fall-through */
 	case PHY_INTERFACE_MODE_1000BASEX:
 	case PHY_INTERFACE_MODE_2500BASEX:
-		phylink_set(mask, 1000baseT_Full);
-		phylink_set(mask, 1000baseX_Full);
-		phylink_set(mask, 2500baseT_Full);
-		phylink_set(mask, 2500baseX_Full);
+		if (port->comphy ||
+		    state->interface != PHY_INTERFACE_MODE_2500BASEX) {
+			phylink_set(mask, 1000baseT_Full);
+			phylink_set(mask, 1000baseX_Full);
+		}
+		if (port->comphy ||
+		    state->interface == PHY_INTERFACE_MODE_2500BASEX) {
+			phylink_set(mask, 2500baseT_Full);
+			phylink_set(mask, 2500baseX_Full);
+		}
 		break;
 	default:
 		goto empty_set;
@@ -4811,6 +4823,8 @@  static void mvpp2_phylink_validate(struct phylink_config *config,
 	bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS);
 	bitmap_and(state->advertising, state->advertising, mask,
 		   __ETHTOOL_LINK_MODE_MASK_NBITS);
+
+	phylink_helper_basex_speed(state);
 	return;
 
 empty_set: