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Commit 45d6e545 authored by Ivan Mikhaylov's avatar Ivan Mikhaylov Committed by David S. Miller
Browse files

net/ibm/emac: add 8192 rx/tx fifo size 



emac4syn chips has availability to use 8192 rx/tx fifo buffer sizes,
in current state if we set it up in dts 8192 as example, we will get
only 2048 which may impact on network speed.

Signed-off-by: default avatarIvan Mikhaylov <ivan@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6f3180af

drivers/net/ethernet/ibm/emac/core.c

+6 −0
Original line number Diff line number Diff line
@@ -494,6 +494,9 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s 
	case 16384:

		ret |= EMAC_MR1_RFS_16K;

		break;

	case 8192:

		ret |= EMAC4_MR1_RFS_8K;

		break;

	case 4096:

		ret |= EMAC_MR1_RFS_4K;

		break;
@@ -516,6 +519,9 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_ 
	case 16384:

		ret |= EMAC4_MR1_TFS_16K;

		break;

	case 8192:

		ret |= EMAC4_MR1_TFS_8K;

		break;

	case 4096:

		ret |= EMAC4_MR1_TFS_4K;

		break;

drivers/net/ethernet/ibm/emac/emac.h

+2 −0
Original line number Diff line number Diff line
@@ -151,9 +151,11 @@ struct emac_regs { 


#define EMAC4_MR1_RFS_2K		0x00100000

#define EMAC4_MR1_RFS_4K		0x00180000

#define EMAC4_MR1_RFS_8K		0x00200000

#define EMAC4_MR1_RFS_16K		0x00280000

#define EMAC4_MR1_TFS_2K       		0x00020000

#define EMAC4_MR1_TFS_4K		0x00030000

#define EMAC4_MR1_TFS_8K		0x00040000

#define EMAC4_MR1_TFS_16K		0x00050000

#define EMAC4_MR1_TR			0x00008000

#define EMAC4_MR1_MWSW_001		0x00001000