From 9c90316a1170dd6ee1e620d28f6101f85bbaaa10 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 8 Dec 2023 13:10:27 +0900 Subject: [PATCH] net: rswitch: Set GWMDNC register To support jumbo frames, set GWMDNC register with acceptable maximum values for TX and RX. Signed-off-by: Yoshihiro Shimoda Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/rswitch.c | 2 ++ drivers/net/ethernet/renesas/rswitch.h | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c index eda5ea56674cb..6bd76a88bd40e 100644 --- a/drivers/net/ethernet/renesas/rswitch.c +++ b/drivers/net/ethernet/renesas/rswitch.c @@ -668,6 +668,8 @@ static int rswitch_gwca_hw_init(struct rswitch_private *priv) iowrite32(upper_32_bits(priv->gwca.linkfix_table_dma), priv->addr + GWDCBAC0); iowrite32(lower_32_bits(priv->gwca.ts_queue.ring_dma), priv->addr + GWTDCAC10); iowrite32(upper_32_bits(priv->gwca.ts_queue.ring_dma), priv->addr + GWTDCAC00); + iowrite32(GWMDNC_TSDMN(1) | GWMDNC_TXDMN(0x1e) | GWMDNC_RXDMN(0x1f), + priv->addr + GWMDNC); iowrite32(GWCA_TS_IRQ_BIT, priv->addr + GWTSDCC0); iowrite32(GWTPC_PPPL(GWCA_IPV_NUM), priv->addr + GWTPC0); diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h index 2ac9a86b6238c..17e617ec4187b 100644 --- a/drivers/net/ethernet/renesas/rswitch.h +++ b/drivers/net/ethernet/renesas/rswitch.h @@ -773,6 +773,10 @@ enum rswitch_gwca_mode { #define GWARIRM_ARIOG BIT(0) #define GWARIRM_ARR BIT(1) +#define GWMDNC_TSDMN(num) (((num) << 16) & GENMASK(17, 16)) +#define GWMDNC_TXDMN(num) (((num) << 8) & GENMASK(12, 8)) +#define GWMDNC_RXDMN(num) ((num) & GENMASK(4, 0)) + #define GWDCC_BALR BIT(24) #define GWDCC_DCP_MASK GENMASK(18, 16) #define GWDCC_DCP(prio) FIELD_PREP(GWDCC_DCP_MASK, (prio)) -- 2.30.2