diff mbox series

[net-next,4/6] ravb: Use the max frame size from hardware info for RZ/G2L

Message ID 20240227014014.44855-5-niklas.soderlund+renesas@ragnatech.se (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series ravb: Align Rx descriptor setup and maintenance | expand

Commit Message

Niklas Söderlund Feb. 27, 2024, 1:40 a.m. UTC
Remove the define describing the RZ/G2L maximum frame size and only use
the information in the hardware information struct. This will make it
easier to merge the R-Car and RZ/G2L code paths.

There is no functional change as both the define and the maximum frame
length in the hardware information is set to 8K.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/net/ethernet/renesas/ravb.h      | 1 -
 drivers/net/ethernet/renesas/ravb_main.c | 5 +++--
 2 files changed, 3 insertions(+), 3 deletions(-)

Comments

Paul Barker Feb. 27, 2024, 10:31 a.m. UTC | #1
On 27/02/2024 01:40, Niklas Söderlund wrote:
> Remove the define describing the RZ/G2L maximum frame size and only use
> the information in the hardware information struct. This will make it
> easier to merge the R-Car and RZ/G2L code paths.
> 
> There is no functional change as both the define and the maximum frame
> length in the hardware information is set to 8K.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
>  drivers/net/ethernet/renesas/ravb.h      | 1 -
>  drivers/net/ethernet/renesas/ravb_main.c | 5 +++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
> index 751bb29cd488..7fa60fccb6ea 100644
> --- a/drivers/net/ethernet/renesas/ravb.h
> +++ b/drivers/net/ethernet/renesas/ravb.h
> @@ -1017,7 +1017,6 @@ enum CSR2_BIT {
>  
>  #define RX_BUF_SZ	(2048 - ETH_FCS_LEN + sizeof(__sum16))
>  
> -#define GBETH_RX_BUFF_MAX 8192
>  #define GBETH_RX_DESC_DATA_SIZE 4080
>  
>  struct ravb_tstamp_skb {
> diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
> index 6e39d498936f..b309ca23f5b6 100644
> --- a/drivers/net/ethernet/renesas/ravb_main.c
> +++ b/drivers/net/ethernet/renesas/ravb_main.c
> @@ -566,7 +566,7 @@ static void ravb_emac_init_gbeth(struct net_device *ndev)
>  	}
>  
>  	/* Receive frame limit set register */
> -	ravb_write(ndev, GBETH_RX_BUFF_MAX + ETH_FCS_LEN, RFLR);
> +	ravb_write(ndev, priv->info->rx_max_frame_size + ETH_FCS_LEN, RFLR);
>  
>  	/* EMAC Mode: PAUSE prohibition; Duplex; TX; RX; CRC Pass Through */
>  	ravb_write(ndev, ECMR_ZPF | ((priv->duplex > 0) ? ECMR_DM : 0) |
> @@ -627,6 +627,7 @@ static void ravb_emac_init(struct net_device *ndev)
>  
>  static int ravb_dmac_init_gbeth(struct net_device *ndev)
>  {
> +	struct ravb_private *priv = netdev_priv(ndev);
>  	int error;
>  
>  	error = ravb_ring_init(ndev, RAVB_BE);
> @@ -640,7 +641,7 @@ static int ravb_dmac_init_gbeth(struct net_device *ndev)
>  	ravb_write(ndev, 0x60000000, RCR);
>  
>  	/* Set Max Frame Length (RTC) */
> -	ravb_write(ndev, 0x7ffc0000 | GBETH_RX_BUFF_MAX, RTC);
> +	ravb_write(ndev, 0x7ffc0000 | priv->info->rx_max_frame_size, RTC);
>  
>  	/* Set FIFO size */
>  	ravb_write(ndev, 0x00222200, TGC);

Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 751bb29cd488..7fa60fccb6ea 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -1017,7 +1017,6 @@  enum CSR2_BIT {
 
 #define RX_BUF_SZ	(2048 - ETH_FCS_LEN + sizeof(__sum16))
 
-#define GBETH_RX_BUFF_MAX 8192
 #define GBETH_RX_DESC_DATA_SIZE 4080
 
 struct ravb_tstamp_skb {
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 6e39d498936f..b309ca23f5b6 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -566,7 +566,7 @@  static void ravb_emac_init_gbeth(struct net_device *ndev)
 	}
 
 	/* Receive frame limit set register */
-	ravb_write(ndev, GBETH_RX_BUFF_MAX + ETH_FCS_LEN, RFLR);
+	ravb_write(ndev, priv->info->rx_max_frame_size + ETH_FCS_LEN, RFLR);
 
 	/* EMAC Mode: PAUSE prohibition; Duplex; TX; RX; CRC Pass Through */
 	ravb_write(ndev, ECMR_ZPF | ((priv->duplex > 0) ? ECMR_DM : 0) |
@@ -627,6 +627,7 @@  static void ravb_emac_init(struct net_device *ndev)
 
 static int ravb_dmac_init_gbeth(struct net_device *ndev)
 {
+	struct ravb_private *priv = netdev_priv(ndev);
 	int error;
 
 	error = ravb_ring_init(ndev, RAVB_BE);
@@ -640,7 +641,7 @@  static int ravb_dmac_init_gbeth(struct net_device *ndev)
 	ravb_write(ndev, 0x60000000, RCR);
 
 	/* Set Max Frame Length (RTC) */
-	ravb_write(ndev, 0x7ffc0000 | GBETH_RX_BUFF_MAX, RTC);
+	ravb_write(ndev, 0x7ffc0000 | priv->info->rx_max_frame_size, RTC);
 
 	/* Set FIFO size */
 	ravb_write(ndev, 0x00222200, TGC);