diff options
| author | Karsten Wiese <fzu@wemgehoertderstaat.de> | 2009-04-02 01:06:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-02 01:06:01 -0700 |
| commit | d78ad8cbfe73ad568de38814a75e9c92ad0a907c (patch) | |
| tree | 510031f2bcfc8f9f3617dde6a25f2780b0e9c618 /drivers/net | |
| parent | f9ed88549e2ec73922b788e3865282d221233662 (diff) | |
| download | lwn-d78ad8cbfe73ad568de38814a75e9c92ad0a907c.tar.gz lwn-d78ad8cbfe73ad568de38814a75e9c92ad0a907c.zip | |
r8169: reset IntrStatus after chip reset
Original comment (Karsten):
On a MSI MS-6702E mainboard, when in rtl8169_init_one() for the first time
after BIOS has run, IntrStatus reads 5 after chip has been reset.
IntrStatus should equal 0 there, so patch changes IntrStatus reset to happen
after chip reset instead of before.
Remark (Francois):
Assuming that the loglevel of the driver is increased above NETIF_MSG_INTR,
the bug reveals itself with a typical "interrupt 0025 in poll" message
at startup. In retrospect, the message should had been read as an hint of
an unexpected hardware state several months ago :o(
Fixes (at least part of) https://bugzilla.redhat.com/show_bug.cgi?id=460747
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Josep <josep.puigdemont@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/r8169.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 06c535222666..e1a638a05f86 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -2075,8 +2075,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!tp->pcie_cap && netif_msg_probe(tp)) dev_info(&pdev->dev, "no PCI Express capability\n"); - /* Unneeded ? Don't mess with Mrs. Murphy. */ - rtl8169_irq_mask_and_ack(ioaddr); + RTL_W16(IntrMask, 0x0000); /* Soft reset the chip. */ RTL_W8(ChipCmd, CmdReset); @@ -2088,6 +2087,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) msleep_interruptible(1); } + RTL_W16(IntrStatus, 0xffff); + /* Identify chip attached to board */ rtl8169_get_mac_version(tp, ioaddr); |