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net: rtl8169: Add processing when OWNbit did't enable in rtl_recv()

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When rtl_recv() of rtl8169 is called, OWNbit of status register
is not enable occasionally.
rtl_recv() doesn't work normally when the driver doesn't do
appropriate processing.
This patch fix this problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Nobuhiro Iwamatsu 2008-03-08 09:25:49 +09:00 • committed by Wolfgang Denk
parent 377151c817
commit d75469d48c
1 changed files with 14 additions and 0 deletions
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14
drivers/net/rtl8169.c
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@ -247,6 +247,15 @@ static struct {
} rtl_chip_info[] = { } rtl_chip_info[] = {
{"RTL-8169", 0x00, 0xff7e1880,}, {"RTL-8169", 0x00, 0xff7e1880,},
{"RTL-8169", 0x04, 0xff7e1880,}, {"RTL-8169", 0x04, 0xff7e1880,},
{"RTL-8169", 0x00, 0xff7e1880,},
{"RTL-8169s/8110s", 0x02, 0xff7e1880,},
{"RTL-8169s/8110s", 0x04, 0xff7e1880,},
{"RTL-8169sb/8110sb", 0x10, 0xff7e1880,},
{"RTL-8169sc/8110sc", 0x18, 0xff7e1880,},
{"RTL-8168b/8111sb", 0x30, 0xff7e1880,},
{"RTL-8168b/8111sb", 0x38, 0xff7e1880,},
{"RTL-8101e", 0x34, 0xff7e1880,},
{"RTL-8100e", 0x32, 0xff7e1880,},
}; };
enum _DescStatusBit { enum _DescStatusBit {
@ -312,6 +321,7 @@ static const unsigned int rtl8169_rx_config =
(RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
static struct pci_device_id supported[] = { static struct pci_device_id supported[] = {
{PCI_VENDOR_ID_REALTEK, 0x8167},
{PCI_VENDOR_ID_REALTEK, 0x8169}, {PCI_VENDOR_ID_REALTEK, 0x8169},
{} {}
}; };
@ -433,6 +443,10 @@ static int rtl_recv(struct eth_device *dev)
tpc->cur_rx = cur_rx; tpc->cur_rx = cur_rx;
return 1; return 1;
} else {
ushort sts = RTL_R8(IntrStatus);
RTL_W8(IntrStatus, sts & ~(TxErr | RxErr | SYSErr));
udelay(100); /* wait */
} }
tpc->cur_rx = cur_rx; tpc->cur_rx = cur_rx;
return (0); /* initially as this is called to flush the input */ return (0); /* initially as this is called to flush the input */