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[BNX2]: Fine-tune flow control on 5709.

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Make use of the programmable high/low water marks in 5709 for
802.3 flow control.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2008-01-29 21:37:17 -08:00
committed by David S. Miller
parent 62a8313cdd
commit 83e3fc89bb
2 changed files with 56 additions and 6 deletions
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11
drivers/net/bnx2.h
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@@ -348,6 +348,12 @@ struct l2_fhdr {
#define BNX2_L2CTX_BD_PRE_READ 0x00000000
#define BNX2_L2CTX_CTX_SIZE 0x00000000
#define BNX2_L2CTX_CTX_TYPE 0x00000000
#define BNX2_L2CTX_LO_WATER_MARK_DEFAULT 32
#define BNX2_L2CTX_LO_WATER_MARK_SCALE 4
#define BNX2_L2CTX_LO_WATER_MARK_DIS 0
#define BNX2_L2CTX_HI_WATER_MARK_SHIFT 4
#define BNX2_L2CTX_HI_WATER_MARK_SCALE 16
#define BNX2_L2CTX_WATER_MARKS_MSK 0x000000ff
#define BNX2_L2CTX_CTX_TYPE_SIZE_L2 ((0x20/20)<<16)
#define BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE (0xf<<28)
#define BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_UNDEFINED (0<<28)
@@ -4494,6 +4500,9 @@ struct l2_fhdr {
#define BNX2_MQ_MAP_L2_3_ENA (0x1L<<31)
#define BNX2_MQ_MAP_L2_3_DEFAULT 0x82004646
#define BNX2_MQ_MAP_L2_5 0x00003d34
#define BNX2_MQ_MAP_L2_5_ARM (0x3L<<26)
/*
* tsch_reg definition
* offset: 0x4c00
@@ -6405,7 +6414,7 @@ struct l2_fhdr {
#define RX_COPY_THRESH 128
#define BNX2_MISC_ENABLE_DEFAULT 0x7ffffff
#define BNX2_MISC_ENABLE_DEFAULT 0x17ffffff
#define DMA_READ_CHANS 5
#define DMA_WRITE_CHANS 3