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r8169: identify different registers.

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Documentation (sort of).

The location are the same, the values are the same but it is
just accidental. Note that the 810x could cope with a smaller
value as it does not support jumbo frames.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
françois romieu 2011-01-03 15:07:42 +00:00 committed by David S. Miller
parent bca03d5f32
commit f0298f8143
1 changed files with 14 additions and 8 deletions
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22
drivers/net/r8169.c
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@ -67,7 +67,6 @@ static const int multicast_filter_limit = 32;
#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */
#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
@ -231,7 +230,14 @@ enum rtl_registers {
IntrMitigate = 0xe2,
RxDescAddrLow = 0xe4,
RxDescAddrHigh = 0xe8,
EarlyTxThres = 0xec,
EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
#define NoEarlyTx 0x3f /* Max value : no early transmit. */
MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
#define TxPacketMax (8064 >> 7)
FuncEvent = 0xf0,
FuncEventMask = 0xf4,
FuncPresetState = 0xf8,
@ -2901,7 +2907,7 @@ static void rtl_hw_start_8169(struct net_device *dev)
(tp->mac_version == RTL_GIGA_MAC_VER_04))
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(EarlyTxThres, NoEarlyTx);
rtl_set_rx_max_size(ioaddr, rx_buf_sz);
@ -3036,7 +3042,7 @@ static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
{
rtl_hw_start_8168bb(ioaddr, pdev);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(MaxTxPacketSize, TxPacketMax);
RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
}
@ -3091,7 +3097,7 @@ static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
/* Magic. */
RTL_W8(DBG_REG, 0x20);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(MaxTxPacketSize, TxPacketMax);
rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
@ -3147,7 +3153,7 @@ static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
rtl_disable_clock_request(pdev);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(MaxTxPacketSize, TxPacketMax);
rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
@ -3162,7 +3168,7 @@ static void rtl_hw_start_8168(struct net_device *dev)
RTL_W8(Cfg9346, Cfg9346_Unlock);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(MaxTxPacketSize, TxPacketMax);
rtl_set_rx_max_size(ioaddr, rx_buf_sz);
@ -3342,7 +3348,7 @@ static void rtl_hw_start_8101(struct net_device *dev)
RTL_W8(Cfg9346, Cfg9346_Unlock);
RTL_W8(EarlyTxThres, EarlyTxThld);
RTL_W8(MaxTxPacketSize, TxPacketMax);
rtl_set_rx_max_size(ioaddr, rx_buf_sz);