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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: Ivan Mikhaylov <ivan@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ivan Mikhaylov 2018-01-24 15:53:24 +03:00 committed by David S. Miller
parent 6f3180afbb
commit 45d6e54550
2 changed files with 8 additions and 0 deletions
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6
drivers/net/ethernet/ibm/emac/core.c
View File

@ -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;

2
drivers/net/ethernet/ibm/emac/emac.h
View File

@ -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