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[PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function

Justin Lai posted 4 patches 1 week, 1 day ago
There is a newer version of this series
[PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function
Posted by Justin Lai 1 week, 1 day ago 
1. Sets tp->hw_ver.
2. Changes the return type from bool to int.

Signed-off-by: Justin Lai <justinlai0215@realtek.com>
---
 drivers/net/ethernet/realtek/rtase/rtase.h    |  2 ++
 .../net/ethernet/realtek/rtase/rtase_main.c   | 21 +++++++++++--------
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ethernet/realtek/rtase/rtase.h
index 583c33930f88..547c71937b01 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase.h
+++ b/drivers/net/ethernet/realtek/rtase/rtase.h
@@ -327,6 +327,8 @@ struct rtase_private {
 	u16 int_nums;
 	u16 tx_int_mit;
 	u16 rx_int_mit;
+
+	u32 hw_ver;
 };
 
 #define RTASE_LSO_64K 64000
diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c
index f8777b7663d3..33808afd588d 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
+++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
@@ -1972,20 +1972,21 @@ static void rtase_init_software_variable(struct pci_dev *pdev,
 	tp->dev->max_mtu = RTASE_MAX_JUMBO_SIZE;
 }
 
-static bool rtase_check_mac_version_valid(struct rtase_private *tp)
+static int rtase_check_mac_version_valid(struct rtase_private *tp)
 {
-	u32 hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
-	bool known_ver = false;
+	int ret = -ENODEV;
 
-	switch (hw_ver) {
+	tp->hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
+
+	switch (tp->hw_ver) {
 	case 0x00800000:
 	case 0x04000000:
 	case 0x04800000:
-		known_ver = true;
+		ret = 0;
 		break;
 	}
 
-	return known_ver;
+	return ret;
 }
 
 static int rtase_init_board(struct pci_dev *pdev, struct net_device **dev_out,
@@ -2105,9 +2106,11 @@ static int rtase_init_one(struct pci_dev *pdev,
 	tp->pdev = pdev;
 
 	/* identify chip attached to board */
-	if (!rtase_check_mac_version_valid(tp))
-		return dev_err_probe(&pdev->dev, -ENODEV,
-				     "unknown chip version, contact rtase maintainers (see MAINTAINERS file)\n");
+	ret = rtase_check_mac_version_valid(tp);
+	if (ret != 0) {
+		dev_err(&pdev->dev,
+			"unknown chip version, contact rtase maintainers (see MAINTAINERS file)\n");
+	}
 
 	rtase_init_software_variable(pdev, tp);
 	rtase_init_hardware(tp);
-- 
2.34.1
Re: [PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function
Posted by Andrew Lunn 1 week, 1 day ago 
On Thu, Nov 14, 2024 at 07:14:40PM +0800, Justin Lai wrote:
> 1. Sets tp->hw_ver.
> 2. Changes the return type from bool to int.
> 
> Signed-off-by: Justin Lai <justinlai0215@realtek.com>

If you want these in net, you should add a Fixes: tag.

    Andrew

---
pw-bot: cr
RE: [PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function
Posted by Justin Lai 1 week ago 
>
> 
> On Thu, Nov 14, 2024 at 07:14:40PM +0800, Justin Lai wrote:
> > 1. Sets tp->hw_ver.
> > 2. Changes the return type from bool to int.
> >
> > Signed-off-by: Justin Lai <justinlai0215@realtek.com>
> 
> If you want these in net, you should add a Fixes: tag.
> 
>     Andrew
> 
Ok, I will do that.
> ---
> pw-bot: cr
Re: [PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function
Posted by Andrew Lunn 1 week, 1 day ago 
On Thu, Nov 14, 2024 at 07:14:40PM +0800, Justin Lai wrote:
> 1. Sets tp->hw_ver.
> 2. Changes the return type from bool to int.
> 
> Signed-off-by: Justin Lai <justinlai0215@realtek.com>
> ---
>  drivers/net/ethernet/realtek/rtase/rtase.h    |  2 ++
>  .../net/ethernet/realtek/rtase/rtase_main.c   | 21 +++++++++++--------
>  2 files changed, 14 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ethernet/realtek/rtase/rtase.h
> index 583c33930f88..547c71937b01 100644
> --- a/drivers/net/ethernet/realtek/rtase/rtase.h
> +++ b/drivers/net/ethernet/realtek/rtase/rtase.h
> @@ -327,6 +327,8 @@ struct rtase_private {
>  	u16 int_nums;
>  	u16 tx_int_mit;
>  	u16 rx_int_mit;
> +
> +	u32 hw_ver;
>  };
>  
>  #define RTASE_LSO_64K 64000
> diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> index f8777b7663d3..33808afd588d 100644
> --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
> +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> @@ -1972,20 +1972,21 @@ static void rtase_init_software_variable(struct pci_dev *pdev,
>  	tp->dev->max_mtu = RTASE_MAX_JUMBO_SIZE;
>  }
>  
> -static bool rtase_check_mac_version_valid(struct rtase_private *tp)
> +static int rtase_check_mac_version_valid(struct rtase_private *tp)
>  {
> -	u32 hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
> -	bool known_ver = false;
> +	int ret = -ENODEV;
>  
> -	switch (hw_ver) {
> +	tp->hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
> +
> +	switch (tp->hw_ver) {
>  	case 0x00800000:
>  	case 0x04000000:
>  	case 0x04800000:

Since these magic numbers are being used in more places, please add
some #define with sensible names.

> -	if (!rtase_check_mac_version_valid(tp))
> -		return dev_err_probe(&pdev->dev, -ENODEV,
> -				     "unknown chip version, contact rtase maintainers (see MAINTAINERS file)\n");
> +	ret = rtase_check_mac_version_valid(tp);
> +	if (ret != 0) {
> +		dev_err(&pdev->dev,
> +			"unknown chip version, contact rtase maintainers (see MAINTAINERS file)\n");
> +	}

Since you are changing this, maybe include the hw_ver?

	Andrew
RE: [PATCH net 1/4] rtase: Refactor the rtase_check_mac_version_valid() function
Posted by Justin Lai 1 week ago 
> 
> On Thu, Nov 14, 2024 at 07:14:40PM +0800, Justin Lai wrote:
> > 1. Sets tp->hw_ver.
> > 2. Changes the return type from bool to int.
> >
> > Signed-off-by: Justin Lai <justinlai0215@realtek.com>
> > ---
> >  drivers/net/ethernet/realtek/rtase/rtase.h    |  2 ++
> >  .../net/ethernet/realtek/rtase/rtase_main.c   | 21 +++++++++++--------
> >  2 files changed, 14 insertions(+), 9 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h
> > b/drivers/net/ethernet/realtek/rtase/rtase.h
> > index 583c33930f88..547c71937b01 100644
> > --- a/drivers/net/ethernet/realtek/rtase/rtase.h
> > +++ b/drivers/net/ethernet/realtek/rtase/rtase.h
> > @@ -327,6 +327,8 @@ struct rtase_private {
> >       u16 int_nums;
> >       u16 tx_int_mit;
> >       u16 rx_int_mit;
> > +
> > +     u32 hw_ver;
> >  };
> >
> >  #define RTASE_LSO_64K 64000
> > diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > index f8777b7663d3..33808afd588d 100644
> > --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
> > @@ -1972,20 +1972,21 @@ static void rtase_init_software_variable(struct
> pci_dev *pdev,
> >       tp->dev->max_mtu = RTASE_MAX_JUMBO_SIZE;  }
> >
> > -static bool rtase_check_mac_version_valid(struct rtase_private *tp)
> > +static int rtase_check_mac_version_valid(struct rtase_private *tp)
> >  {
> > -     u32 hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) &
> RTASE_HW_VER_MASK;
> > -     bool known_ver = false;
> > +     int ret = -ENODEV;
> >
> > -     switch (hw_ver) {
> > +     tp->hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) &
> > + RTASE_HW_VER_MASK;
> > +
> > +     switch (tp->hw_ver) {
> >       case 0x00800000:
> >       case 0x04000000:
> >       case 0x04800000:
> 
> Since these magic numbers are being used in more places, please add some
> #define with sensible names.

Ok, I will define these hardware version ID names.
> 
> > -     if (!rtase_check_mac_version_valid(tp))
> > -             return dev_err_probe(&pdev->dev, -ENODEV,
> > -                                  "unknown chip version, contact
> rtase maintainers (see MAINTAINERS file)\n");
> > +     ret = rtase_check_mac_version_valid(tp);
> > +     if (ret != 0) {
> > +             dev_err(&pdev->dev,
> > +                     "unknown chip version, contact rtase maintainers
> (see MAINTAINERS file)\n");
> > +     }
> 
> Since you are changing this, maybe include the hw_ver?

Thank you for your suggestion, I will add hw_ver to the error message.
> 
>         Andrew

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