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SubjectPATCH 2.4.5.1: 8139too net drvr fix
The attached patch, against 2.4.5-pre1, fixes a chipset wakeup bug which
occurred on a popular 8139 chip.
--
Jeff Garzik | Game called on account of naked chick
Building 1024 |
MandrakeSoft |Index: linux_2_4/drivers/net/8139too.c
diff -u linux_2_4/drivers/net/8139too.c:1.1.1.34 linux_2_4/drivers/net/8139too.c:1.1.1.34.24.2
--- linux_2_4/drivers/net/8139too.c:1.1.1.34 Thu Apr 19 03:07:47 2001
+++ linux_2_4/drivers/net/8139too.c Mon May 7 13:44:15 2001
@@ -149,7 +149,7 @@
#include <asm/io.h>


-#define RTL8139_VERSION "0.9.16"
+#define RTL8139_VERSION "0.9.17"
#define MODNAME "8139too"
#define RTL8139_DRIVER_NAME MODNAME " Fast Ethernet driver " RTL8139_VERSION
#define PFX MODNAME ": "
@@ -728,7 +728,7 @@
struct rtl8139_private *tp;
u8 tmp8;
int rc;
- unsigned int i, have_pci_pm = 1;
+ unsigned int i;
u32 pio_start, pio_end, pio_flags, pio_len;
unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
u32 tmp;
@@ -770,10 +770,6 @@
DPRINTK("PIO region size == 0x%02X\n", pio_len);
DPRINTK("MMIO region size == 0x%02lX\n", mmio_len);

- /* ugly hueristic, but it's a chicken-and-egg problem */
- if (pio_len < RTL8139B_IO_SIZE)
- have_pci_pm = 0;
-
#ifdef USE_IO_OPS
/* make sure PCI base addr 0 is PIO */
if (!(pio_flags & IORESOURCE_IO)) {
@@ -824,30 +820,7 @@
#endif /* USE_IO_OPS */

/* Bring old chips out of low-power mode. */
- if (have_pci_pm) {
- u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
- if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
- (tmp8 & LWAKE))
- new_tmp8 &= ~LWAKE;
- new_tmp8 |= Cfg1_PM_Enable;
- if (new_tmp8 != tmp8) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tmp8);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- }
- if (rtl_chip_info[tp->chipset].flags & HasLWake) {
- tmp8 = RTL_R8 (Config4);
- if (tmp8 & LWPTN)
- RTL_W8 (Config4, tmp8 & ~LWPTN);
- }
- } else {
- RTL_W8 (HltClk, 'R');
- tmp8 = RTL_R8 (Config1);
- tmp8 &= ~(SLEEP | PWRDN);
- RTL_W8 (Config1, tmp8);
- }
-
- rtl8139_chip_reset (ioaddr);
+ RTL_W8 (HltClk, 'R');

/* check for missing/broken hardware */
if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
@@ -877,6 +850,32 @@
tp->chipset,
rtl_chip_info[tp->chipset].name);

+ if (tp->chipset >= CH_8139B) {
+ u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
+ DPRINTK("PCI PM wakeup\n");
+ if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
+ (tmp8 & LWAKE))
+ new_tmp8 &= ~LWAKE;
+ new_tmp8 |= Cfg1_PM_Enable;
+ if (new_tmp8 != tmp8) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config1, tmp8);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ }
+ if (rtl_chip_info[tp->chipset].flags & HasLWake) {
+ tmp8 = RTL_R8 (Config4);
+ if (tmp8 & LWPTN)
+ RTL_W8 (Config4, tmp8 & ~LWPTN);
+ }
+ } else {
+ DPRINTK("Old chip wakeup\n");
+ tmp8 = RTL_R8 (Config1);
+ tmp8 &= ~(SLEEP | PWRDN);
+ RTL_W8 (Config1, tmp8);
+ }
+
+ rtl8139_chip_reset (ioaddr);
+
DPRINTK ("EXIT, returning 0\n");
*dev_out = dev;
return 0;
@@ -1358,11 +1357,16 @@
else if ((mii_reg5 & 0x0100) == 0x0100
|| (mii_reg5 & 0x00C0) == 0x0040)
tp->full_duplex = 1;
- printk(KERN_INFO"%s: Setting %s%s-duplex based on"
+ if (mii_reg5) {
+ printk(KERN_INFO"%s: Setting %s%s-duplex based on"
" auto-negotiated partner ability %4.4x.\n", dev->name,
mii_reg5 == 0 ? "" :
(mii_reg5 & 0x0180) ? "100mbps " : "10mbps ",
tp->full_duplex ? "full" : "half", mii_reg5);
+ } else {
+ printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n",
+ dev->name);
+ }
}

if (tp->chipset >= CH_8139B) {
@@ -1542,11 +1546,18 @@
|| (mii_reg5 & 0x01C0) == 0x0040;
if (tp->full_duplex != duplex) {
tp->full_duplex = duplex;
- printk (KERN_INFO
- "%s: Setting %s-duplex based on MII #%d link"
- " partner ability of %4.4x.\n", dev->name,
- tp->full_duplex ? "full" : "half",
- tp->phys[0], mii_reg5);
+
+ if (mii_reg5) {
+ printk (KERN_INFO
+ "%s: Setting %s-duplex based on MII #%d link"
+ " partner ability of %4.4x.\n",
+ dev->name,
+ tp->full_duplex ? "full" : "half",
+ tp->phys[0], mii_reg5);
+ } else {
+ printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n",
+ dev->name);
+ }
#if 0
RTL_W8 (Cfg9346, Cfg9346_Unlock);
RTL_W8 (Config1, tp->full_duplex ? 0x60 : 0x20);
Index: linux_2_4/Documentation/networking/8139too.txt
diff -u linux_2_4/Documentation/networking/8139too.txt:1.1.1.19 linux_2_4/Documentation/networking/8139too.txt:1.1.1.19.20.1
--- linux_2_4/Documentation/networking/8139too.txt:1.1.1.19 Thu Apr 19 18:09:50 2001
+++ linux_2_4/Documentation/networking/8139too.txt Mon May 7 13:44:15 2001
@@ -185,6 +185,13 @@
Change History
--------------

+Version 0.9.17 - May 7, 2001
+
+* Fix chipset wakeup bug which prevent media connection for 8139B
+* Print out "media is unconnected..." instead of
+ "partner ability 0000"
+
+
Version 0.9.16 - April 14, 2001

* Complete MMIO audit, disable read-after-every-write
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