Commit 9c90316a authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by David S. Miller
Browse files

net: rswitch: Set GWMDNC register 



To support jumbo frames, set GWMDNC register with acceptable maximum
values for TX and RX.

Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fcff581e

drivers/net/ethernet/renesas/rswitch.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/ethernet/renesas/rswitch.h

+4 −0
Original line number Diff line number Diff line
@@ -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))