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Subject[284/289] r8169: revert "Handle rxfifo errors on 8168 chips"
2.6.36-stable review patch.  If anyone has any objections, please let us know.

------------------

From: =?UTF-8?q?fran=C3=A7ois=20romieu?= <romieu@fr.zoreil.com>

commit 53f57357ff0afc37804f4e82ee3123e0c0a2cad6 upstream.

The original patch helps under obscure conditions (no pun) but
some 8168 do not like it. The change needs to be tightened with
a specific 8168 version.

This reverts commit 801e147cde02f04b5c2f42764cd43a89fc7400a2
("r8169: Handle rxfifo errors on 8168 chips").

Regression at https://bugzilla.kernel.org/show_bug.cgi?id=20882

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Andreas Radke <a.radke@arcor.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/net/r8169.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2936,7 +2936,7 @@ static const struct rtl_cfg_info {
.hw_start = rtl_hw_start_8168,
.region = 2,
.align = 8,
- .intr_event = SYSErr | RxFIFOOver | LinkChg | RxOverflow |
+ .intr_event = SYSErr | LinkChg | RxOverflow |
TxErr | TxOK | RxOK | RxErr,
.napi_event = TxErr | TxOK | RxOK | RxOverflow,
.features = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
@@ -4628,7 +4628,8 @@ static irqreturn_t rtl8169_interrupt(int
}

/* Work around for rx fifo overflow */
- if (unlikely(status & RxFIFOOver)) {
+ if (unlikely(status & RxFIFOOver) &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
netif_stop_queue(dev);
rtl8169_tx_timeout(dev);
break;



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