diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2009-10-29 06:37:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-29 22:57:27 -0700 |
| commit | d6b54d241c558483302616ac1d997806795513e4 (patch) | |
| tree | ca94169c75aa3f3459d1f6e7316fb60d4bdce01b | |
| parent | e91cd2e65f22a80af87367178bed4957fdc45ecd (diff) | |
| download | lwn-d6b54d241c558483302616ac1d997806795513e4.tar.gz lwn-d6b54d241c558483302616ac1d997806795513e4.zip | |
sky2: fix receive pause thresholds
Program the receive pause thresholds differently depending on
chip version. This cloned from from the vendor (GPL) driver.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/sky2.c | 10 | ||||
| -rw-r--r-- | drivers/net/sky2.h | 7 |
2 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index e961a8696cfb..70524f2658dd 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -926,8 +926,14 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) /* On chips without ram buffer, pause is controled by MAC level */ if (!(hw->flags & SKY2_HW_RAM_BUFFER)) { - sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8); - sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8); + /* Pause threshold is scaled by 8 in bytes */ + if (hw->chip_id == CHIP_ID_YUKON_FE_P + && hw->chip_rev == CHIP_REV_YU_FE2_A0) + reg = 1568 / 8; + else + reg = 1024 / 8; + sky2_write16(hw, SK_REG(port, RX_GMF_UP_THR), reg); + sky2_write16(hw, SK_REG(port, RX_GMF_LP_THR), 768 / 8); sky2_set_tx_stfwd(hw, port); } diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index e13da94d19a3..365d79c7d834 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -808,10 +808,11 @@ enum { RX_GMF_AF_THR = 0x0c44,/* 32 bit Rx GMAC FIFO Almost Full Thresh. */ RX_GMF_CTRL_T = 0x0c48,/* 32 bit Rx GMAC FIFO Control/Test */ RX_GMF_FL_MSK = 0x0c4c,/* 32 bit Rx GMAC FIFO Flush Mask */ - RX_GMF_FL_THR = 0x0c50,/* 32 bit Rx GMAC FIFO Flush Threshold */ + RX_GMF_FL_THR = 0x0c50,/* 16 bit Rx GMAC FIFO Flush Threshold */ + RX_GMF_FL_CTRL = 0x0c52,/* 16 bit Rx GMAC FIFO Flush Control */ RX_GMF_TR_THR = 0x0c54,/* 32 bit Rx Truncation Threshold (Yukon-2) */ - RX_GMF_UP_THR = 0x0c58,/* 8 bit Rx Upper Pause Thr (Yukon-EC_U) */ - RX_GMF_LP_THR = 0x0c5a,/* 8 bit Rx Lower Pause Thr (Yukon-EC_U) */ + RX_GMF_UP_THR = 0x0c58,/* 16 bit Rx Upper Pause Thr (Yukon-EC_U) */ + RX_GMF_LP_THR = 0x0c5a,/* 16 bit Rx Lower Pause Thr (Yukon-EC_U) */ RX_GMF_VLAN = 0x0c5c,/* 32 bit Rx VLAN Type Register (Yukon-2) */ RX_GMF_WP = 0x0c60,/* 32 bit Rx GMAC FIFO Write Pointer */ |