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bnx2: Adjust flow control water marks.

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The current water marks are too high and can cause unnecessary flow
control frames.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2010-02-15 19:42:09 +00:00 committed by David S. Miller
parent e9f26c49ce
commit 5726026bff
2 changed files with 2 additions and 2 deletions
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2
drivers/net/bnx2.c
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@ -1277,7 +1277,7 @@ bnx2_init_rx_context(struct bnx2 *bp, u32 cid)
if (lo_water >= bp->rx_ring_size)
lo_water = 0;
hi_water = bp->rx_ring_size / 4;
hi_water = min_t(int, bp->rx_ring_size / 4, lo_water + 16);
if (hi_water <= lo_water)
lo_water = 0;

2
drivers/net/bnx2.h
View file

@ -349,7 +349,7 @@ 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_DEFAULT 4
#define BNX2_L2CTX_LO_WATER_MARK_SCALE 4
#define BNX2_L2CTX_LO_WATER_MARK_DIS 0
#define BNX2_L2CTX_HI_WATER_MARK_SHIFT 4