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8139cp: backport patches to make driver stable again

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List of patches that Jo-Philipp groveled out of git.

Redux: defuzzed.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30366 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
2012-02-07 21:56:51 +00:00
parent 9b433b090a
commit 4cca99b95f
6 changed files with 117 additions and 30 deletions
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45
target/linux/x86/patches-3.2/902-8139cp_config_rx_mode.patch Normal file
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@@ -0,0 +1,45 @@
From f872b237c1750221932e715da2552225afe4a95c Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 30 Dec 2011 23:44:42 +0000
Subject: [PATCH] 8139cp: properly config rx mode after resuming
Rx mode should be reset after resming, so unconditionally updating rx
mode rather than conditionally updating based on the value we
remembered, otherwise unexpected value may be used by the nic after
resuming.
btw. I find and test this when debugging guest hibernation in qemu, as
I did not have a 8139cp card in hand, this patch is untested in a
physical 8139cp card, plase review it carefully.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/realtek/8139cp.c | 9 +++------
1 files changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -860,7 +860,6 @@ static void __cp_set_rx_mode (struct net
struct cp_private *cp = netdev_priv(dev);
u32 mc_filter[2]; /* Multicast hash filter */
int rx_mode;
- u32 tmp;
/* Note: do not reorder, GCC is clever about common statements. */
if (dev->flags & IFF_PROMISC) {
@@ -887,11 +886,9 @@ static void __cp_set_rx_mode (struct net
}
/* We can safely update without stopping the chip. */
- tmp = cp_rx_config | rx_mode;
- if (cp->rx_config != tmp) {
- cpw32_f (RxConfig, tmp);
- cp->rx_config = tmp;
- }
+ cp->rx_config = cp_rx_config | rx_mode;
+ cpw32_f(RxConfig, cp->rx_config);
+
cpw32_f (MAR0 + 0, mc_filter[0]);
cpw32_f (MAR0 + 4, mc_filter[1]);
}