2020-07-06 22:03:54

by Michael Walle

[permalink] [raw]
Subject: [PATCH net-next v4 1/3] net: dsa: felix: move USXGMII defines to common place

The ENETC has the same PCS PHY and thus needs the same definitions. Move
them into the common enetc_mdio.h header which has already the macros
for the SGMII PCS.

Signed-off-by: Michael Walle <[email protected]>
---
drivers/net/dsa/ocelot/felix_vsc9959.c | 21 ---------------------
include/linux/fsl/enetc_mdio.h | 19 +++++++++++++++++++
2 files changed, 19 insertions(+), 21 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 19614537b1ba..53453c7015f6 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -16,29 +16,8 @@
#define VSC9959_VCAP_IS2_CNT 1024
#define VSC9959_VCAP_IS2_ENTRY_WIDTH 376
#define VSC9959_VCAP_PORT_CNT 6
-
-/* TODO: should find a better place for these */
-#define USXGMII_BMCR_RESET BIT(15)
-#define USXGMII_BMCR_AN_EN BIT(12)
-#define USXGMII_BMCR_RST_AN BIT(9)
-#define USXGMII_BMSR_LNKS(status) (((status) & GENMASK(2, 2)) >> 2)
-#define USXGMII_BMSR_AN_CMPL(status) (((status) & GENMASK(5, 5)) >> 5)
-#define USXGMII_ADVERTISE_LNKS(x) (((x) << 15) & BIT(15))
-#define USXGMII_ADVERTISE_FDX BIT(12)
-#define USXGMII_ADVERTISE_SPEED(x) (((x) << 9) & GENMASK(11, 9))
-#define USXGMII_LPA_LNKS(lpa) ((lpa) >> 15)
-#define USXGMII_LPA_DUPLEX(lpa) (((lpa) & GENMASK(12, 12)) >> 12)
-#define USXGMII_LPA_SPEED(lpa) (((lpa) & GENMASK(11, 9)) >> 9)
-
#define VSC9959_TAS_GCL_ENTRY_MAX 63

-enum usxgmii_speed {
- USXGMII_SPEED_10 = 0,
- USXGMII_SPEED_100 = 1,
- USXGMII_SPEED_1000 = 2,
- USXGMII_SPEED_2500 = 4,
-};
-
static const u32 vsc9959_ana_regmap[] = {
REG(ANA_ADVLEARN, 0x0089a0),
REG(ANA_VLANMASK, 0x0089a4),
diff --git a/include/linux/fsl/enetc_mdio.h b/include/linux/fsl/enetc_mdio.h
index 2d9203314865..611a7b0d5f10 100644
--- a/include/linux/fsl/enetc_mdio.h
+++ b/include/linux/fsl/enetc_mdio.h
@@ -28,6 +28,25 @@ enum enetc_pcs_speed {
ENETC_PCS_SPEED_2500 = 2,
};

+#define USXGMII_BMCR_RESET BIT(15)
+#define USXGMII_BMCR_AN_EN BIT(12)
+#define USXGMII_BMCR_RST_AN BIT(9)
+#define USXGMII_BMSR_LNKS(status) (((status) & GENMASK(2, 2)) >> 2)
+#define USXGMII_BMSR_AN_CMPL(status) (((status) & GENMASK(5, 5)) >> 5)
+#define USXGMII_ADVERTISE_LNKS(x) (((x) << 15) & BIT(15))
+#define USXGMII_ADVERTISE_FDX BIT(12)
+#define USXGMII_ADVERTISE_SPEED(x) (((x) << 9) & GENMASK(11, 9))
+#define USXGMII_LPA_LNKS(lpa) ((lpa) >> 15)
+#define USXGMII_LPA_DUPLEX(lpa) (((lpa) & GENMASK(12, 12)) >> 12)
+#define USXGMII_LPA_SPEED(lpa) (((lpa) & GENMASK(11, 9)) >> 9)
+
+enum usxgmii_speed {
+ USXGMII_SPEED_10 = 0,
+ USXGMII_SPEED_100 = 1,
+ USXGMII_SPEED_1000 = 2,
+ USXGMII_SPEED_2500 = 4,
+};
+
struct enetc_hw;

struct enetc_mdio_priv {
--
2.20.1


2020-07-07 07:54:25

by Claudiu Manoil

[permalink] [raw]
Subject: RE: [PATCH net-next v4 1/3] net: dsa: felix: move USXGMII defines to common place

>-----Original Message-----
>From: Michael Walle <[email protected]>
>Sent: Tuesday, July 7, 2020 1:03 AM
[...]
>Subject: [PATCH net-next v4 1/3] net: dsa: felix: move USXGMII defines to
>common place
>
>The ENETC has the same PCS PHY and thus needs the same definitions. Move
>them into the common enetc_mdio.h header which has already the macros
>for the SGMII PCS.
>
>Signed-off-by: Michael Walle <[email protected]>

Reviewed-by: Claudiu Manoil <[email protected]>

2020-07-07 09:19:37

by Russell King (Oracle)

[permalink] [raw]
Subject: Re: [PATCH net-next v4 1/3] net: dsa: felix: move USXGMII defines to common place

On Tue, Jul 07, 2020 at 12:02:53AM +0200, Michael Walle wrote:
> The ENETC has the same PCS PHY and thus needs the same definitions. Move
> them into the common enetc_mdio.h header which has already the macros
> for the SGMII PCS.
>
> Signed-off-by: Michael Walle <[email protected]>
> ---
> drivers/net/dsa/ocelot/felix_vsc9959.c | 21 ---------------------
> include/linux/fsl/enetc_mdio.h | 19 +++++++++++++++++++
> 2 files changed, 19 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
> index 19614537b1ba..53453c7015f6 100644
> --- a/drivers/net/dsa/ocelot/felix_vsc9959.c
> +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
> @@ -16,29 +16,8 @@
> #define VSC9959_VCAP_IS2_CNT 1024
> #define VSC9959_VCAP_IS2_ENTRY_WIDTH 376
> #define VSC9959_VCAP_PORT_CNT 6
> -
> -/* TODO: should find a better place for these */
> -#define USXGMII_BMCR_RESET BIT(15)
> -#define USXGMII_BMCR_AN_EN BIT(12)
> -#define USXGMII_BMCR_RST_AN BIT(9)
> -#define USXGMII_BMSR_LNKS(status) (((status) & GENMASK(2, 2)) >> 2)
> -#define USXGMII_BMSR_AN_CMPL(status) (((status) & GENMASK(5, 5)) >> 5)
> -#define USXGMII_ADVERTISE_LNKS(x) (((x) << 15) & BIT(15))
> -#define USXGMII_ADVERTISE_FDX BIT(12)
> -#define USXGMII_ADVERTISE_SPEED(x) (((x) << 9) & GENMASK(11, 9))
> -#define USXGMII_LPA_LNKS(lpa) ((lpa) >> 15)
> -#define USXGMII_LPA_DUPLEX(lpa) (((lpa) & GENMASK(12, 12)) >> 12)
> -#define USXGMII_LPA_SPEED(lpa) (((lpa) & GENMASK(11, 9)) >> 9)
> -
> #define VSC9959_TAS_GCL_ENTRY_MAX 63
>
> -enum usxgmii_speed {
> - USXGMII_SPEED_10 = 0,
> - USXGMII_SPEED_100 = 1,
> - USXGMII_SPEED_1000 = 2,
> - USXGMII_SPEED_2500 = 4,
> -};
> -
> static const u32 vsc9959_ana_regmap[] = {
> REG(ANA_ADVLEARN, 0x0089a0),
> REG(ANA_VLANMASK, 0x0089a4),
> diff --git a/include/linux/fsl/enetc_mdio.h b/include/linux/fsl/enetc_mdio.h
> index 2d9203314865..611a7b0d5f10 100644
> --- a/include/linux/fsl/enetc_mdio.h
> +++ b/include/linux/fsl/enetc_mdio.h
> @@ -28,6 +28,25 @@ enum enetc_pcs_speed {
> ENETC_PCS_SPEED_2500 = 2,
> };
>
> +#define USXGMII_BMCR_RESET BIT(15)
> +#define USXGMII_BMCR_AN_EN BIT(12)
> +#define USXGMII_BMCR_RST_AN BIT(9)

Aren't these just redefinitions of the standard BMCR definitions?

> +#define USXGMII_BMSR_LNKS(status) (((status) & GENMASK(2, 2)) >> 2)
> +#define USXGMII_BMSR_AN_CMPL(status) (((status) & GENMASK(5, 5)) >> 5)

Aren't these just redefinitions of the standard BMSR definitions just
differently?

Maybe convert the code to use the standard definitions found in
include/uapi/linux/mii.h and include/uapi/linux/mdio.h?

> +#define USXGMII_ADVERTISE_LNKS(x) (((x) << 15) & BIT(15))
> +#define USXGMII_ADVERTISE_FDX BIT(12)
> +#define USXGMII_ADVERTISE_SPEED(x) (((x) << 9) & GENMASK(11, 9))
> +#define USXGMII_LPA_LNKS(lpa) ((lpa) >> 15)
> +#define USXGMII_LPA_DUPLEX(lpa) (((lpa) & GENMASK(12, 12)) >> 12)
> +#define USXGMII_LPA_SPEED(lpa) (((lpa) & GENMASK(11, 9)) >> 9)
> +
> +enum usxgmii_speed {
> + USXGMII_SPEED_10 = 0,
> + USXGMII_SPEED_100 = 1,
> + USXGMII_SPEED_1000 = 2,
> + USXGMII_SPEED_2500 = 4,
> +};
> +

I've asked in other patch sets for the USXGMII definitions to be moved
into some header that everyone can use - there is nothing enetc specific
about the USXGMII word definitions. Please move them to a header file
so that everyone can use them.

Thanks.

--
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