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[PATCH] forcedeth: mac address corrected

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This patch will correct the mac address and set a flag to indicate that
it is already corrected in case nv_probe is called again. For example,
when you use kexec to restart the kernel.

Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Ayaz Abdulla 2006-07-31 12:05:01 -04:00 committed by Jeff Garzik
parent f1489653e9
commit 5070d34084
1 changed files with 31 additions and 11 deletions
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42
drivers/net/forcedeth.c
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@ -109,6 +109,7 @@
* 0.54: 21 Mar 2006: Fix spin locks for multi irqs and cleanup.
* 0.55: 22 Mar 2006: Add flow control (pause frame).
* 0.56: 22 Mar 2006: Additional ethtool config and moduleparam support.
* 0.57: 14 May 2006: Mac address set in probe/remove and order corrections.
*
* Known bugs:
* We suspect that on some hardware no TX done interrupts are generated.
@ -120,7 +121,7 @@
* DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
* superfluous timer interrupts from the nic.
*/
#define FORCEDETH_VERSION "0.56"
#define FORCEDETH_VERSION "0.57"
#define DRV_NAME "forcedeth"
#include <linux/module.h>
@ -262,7 +263,8 @@ enum {
NvRegRingSizes = 0x108,
#define NVREG_RINGSZ_TXSHIFT 0
#define NVREG_RINGSZ_RXSHIFT 16
NvRegUnknownTransmitterReg = 0x10c,
NvRegTransmitPoll = 0x10c,
#define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000
NvRegLinkSpeed = 0x110,
#define NVREG_LINKSPEED_FORCE 0x10000
#define NVREG_LINKSPEED_10 1000
@ -1178,7 +1180,7 @@ static void nv_stop_tx(struct net_device *dev)
KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
udelay(NV_TXSTOP_DELAY2);
writel(0, base + NvRegUnknownTransmitterReg);
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
}
static void nv_txrx_reset(struct net_device *dev)
@ -3917,7 +3919,7 @@ static int nv_open(struct net_device *dev)
oom = nv_init_ring(dev);
writel(0, base + NvRegLinkSpeed);
writel(0, base + NvRegUnknownTransmitterReg);
writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
nv_txrx_reset(dev);
writel(0, base + NvRegUnknownSetupReg6);
@ -4082,7 +4084,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
unsigned long addr;
u8 __iomem *base;
int err, i;
u32 powerstate;
u32 powerstate, txreg;
dev = alloc_etherdev(sizeof(struct fe_priv));
err = -ENOMEM;
@ -4269,12 +4271,30 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
np->orig_mac[0] = readl(base + NvRegMacAddrA);
np->orig_mac[1] = readl(base + NvRegMacAddrB);
dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff;
dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff;
dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff;
dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff;
/* check the workaround bit for correct mac address order */
txreg = readl(base + NvRegTransmitPoll);
if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) {
/* mac address is already in correct order */
dev->dev_addr[0] = (np->orig_mac[0] >> 0) & 0xff;
dev->dev_addr[1] = (np->orig_mac[0] >> 8) & 0xff;
dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
dev->dev_addr[4] = (np->orig_mac[1] >> 0) & 0xff;
dev->dev_addr[5] = (np->orig_mac[1] >> 8) & 0xff;
} else {
/* need to reverse mac address to correct order */
dev->dev_addr[0] = (np->orig_mac[1] >> 8) & 0xff;
dev->dev_addr[1] = (np->orig_mac[1] >> 0) & 0xff;
dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff;
dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff;
/* set permanent address to be correct aswell */
np->orig_mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
(dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
np->orig_mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
}
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
if (!is_valid_ether_addr(dev->perm_addr)) {