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Commit 58b2a6d4 authored by Jeff Garzik's avatar Jeff Garzik
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Merge pobox.com:/spare/repo/linux-2.6 

into pobox.com:/spare/repo/netdev-2.6/via-rhine
parents a6ba40b5 f851943e
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Showing with 354 additions and 337 deletions
drivers/net/via-rhine.c
View file @ 58b2a6d4
......@@ -125,11 +125,16 @@
LK1.1.19 (Roger Luethi)
- Increase Tx threshold for unspecified errors
LK1.2.0-2.6 (Roger Luethi)
- Massive clean-up
- Rewrite PHY, media handling (remove options, full_duplex, backoff)
- Fix Tx engine race for good
*/
#define DRV_NAME "via-rhine"
#define DRV_VERSION "1.1.20-2.6"
#define DRV_RELDATE "May-23-2004"
#define DRV_VERSION "1.2.0-2.6"
#define DRV_RELDATE "June-10-2004"
/* A few user-configurable values.
......@@ -142,22 +147,10 @@ static int max_interrupt_work = 20;
Setting to > 1518 effectively disables this feature. */
static int rx_copybreak;
/* Select a backoff algorithm (Ethernet capture effect) */
static int backoff;
/* Used to pass the media type, etc.
Both 'options[]' and 'full_duplex[]' should exist for driver
interoperability.
The media type is usually passed in 'options[]'.
The default is autonegotiation for speed and duplex.
This should rarely be overridden.
Use option values 0x10/0x20 for 10Mbps, 0x100,0x200 for 100Mbps.
Use option values 0x10 and 0x100 for forcing half duplex fixed speed.
Use option values 0x20 and 0x200 for forcing full duplex operation.
*/
#define MAX_UNITS 8 /* More are supported, limit only on options */
static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
/*
* In case you are looking for 'options[]' or 'full_duplex[]', they
* are gone. Use ethtool(8) instead.
*/
/* Maximum number of multicast addresses to filter (vs. rx-all-multicast).
The Rhine has a 64 element 8390-like hash table. */
......@@ -210,9 +203,6 @@ static const int multicast_filter_limit = 32;
static char version[] __devinitdata =
KERN_INFO DRV_NAME ".c:v1.10-LK" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker\n";
static char shortname[] = DRV_NAME;
/* This driver was written to use PCI memory space. Some early versions
of the Rhine may only work correctly with I/O space accesses. */
#ifdef CONFIG_VIA_RHINE_MMIO
......@@ -239,15 +229,9 @@ MODULE_LICENSE("GPL");
MODULE_PARM(max_interrupt_work, "i");
MODULE_PARM(debug, "i");
MODULE_PARM(rx_copybreak, "i");
MODULE_PARM(backoff, "i");
MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
MODULE_PARM_DESC(max_interrupt_work, "VIA Rhine maximum events handled per interrupt");
MODULE_PARM_DESC(debug, "VIA Rhine debug level (0-7)");
MODULE_PARM_DESC(rx_copybreak, "VIA Rhine copy breakpoint for copy-only-tiny-frames");
MODULE_PARM_DESC(backoff, "VIA Rhine: Bits 0-3: backoff algorithm");
MODULE_PARM_DESC(options, "VIA Rhine: Bits 0-3: media type, bit 17: full duplex");
MODULE_PARM_DESC(full_duplex, "VIA Rhine full duplex setting(s) (1)");
/*
Theory of Operation
......@@ -350,24 +334,24 @@ The chip does not pad to minimum transmit length.
enum rhine_revs {
VT86C100A = 0x00,
VTunknown0 = 0x20,
VT6102 = 0x40,
VT8231 = 0x50, /* Integrated MAC */
VT8233 = 0x60, /* Integrated MAC */
VT8235 = 0x74, /* Integrated MAC */
VT8237 = 0x78, /* Integrated MAC */
VTunknown0 = 0x7C,
VTunknown1 = 0x7C,
VT6105 = 0x80,
VT6105_B0 = 0x83,
VT6105L = 0x8A,
VT6107 = 0x8C,
VTunknown1 = 0x8E,
VTunknown2 = 0x8E,
VT6105M = 0x90,
};
enum rhine_quirks {
rqWOL = 0x0001, /* Wake-On-LAN support */
rqForceReset = 0x0002,
rqDavicomPhy = 0x0020,
rq6patterns = 0x0040, /* 6 instead of 4 patterns for WOL */
rqStatusWBRace = 0x0080, /* Tx Status Writeback Error possible */
rqRhineI = 0x0100, /* See comment below */
......@@ -395,6 +379,7 @@ MODULE_DEVICE_TABLE(pci, rhine_pci_tbl);
/* Offsets to the device registers. */
enum register_offsets {
StationAddr=0x00, RxConfig=0x06, TxConfig=0x07, ChipCmd=0x08,
ChipCmd1=0x09,
IntrStatus=0x0C, IntrEnable=0x0E,
MulticastFilter0=0x10, MulticastFilter1=0x14,
RxRingPtr=0x18, TxRingPtr=0x1C, GFIFOTest=0x54,
......@@ -403,8 +388,8 @@ enum register_offsets {
ConfigA=0x78, ConfigB=0x79, ConfigC=0x7A, ConfigD=0x7B,
RxMissed=0x7C, RxCRCErrs=0x7E, MiscCmd=0x81,
StickyHW=0x83, IntrStatus2=0x84,
WOLcrSet=0xA0, WOLcrClr=0xA4, WOLcrClr1=0xA6,
WOLcgClr=0xA7,
WOLcrSet=0xA0, PwcfgSet=0xA1, WOLcgSet=0xA3, WOLcrClr=0xA4,
WOLcrClr1=0xA6, WOLcgClr=0xA7,
PwrcsrSet=0xA8, PwrcsrSet1=0xA9, PwrcsrClr=0xAC, PwrcsrClr1=0xAD,
};
......@@ -436,6 +421,15 @@ enum intr_status_bits {
IntrTxErrSummary=0x082218,
};
/* Bits in WOLcrSet/WOLcrClr and PwrcsrSet/PwrcsrClr */
enum wol_bits {
WOLucast = 0x10,
WOLmagic = 0x20,
WOLbmcast = 0x30,
WOLlnkon = 0x40,
WOLlnkoff = 0x80,
};
/* The Rx and Tx buffer descriptors. */
struct rx_desc {
s32 rx_status;
......@@ -464,13 +458,12 @@ enum desc_status_bits {
/* Bits in ChipCmd. */
enum chip_cmd_bits {
CmdInit=0x0001, CmdStart=0x0002, CmdStop=0x0004, CmdRxOn=0x0008,
CmdTxOn=0x0010, CmdTxDemand=0x0020, CmdRxDemand=0x0040,
CmdEarlyRx=0x0100, CmdEarlyTx=0x0200, CmdFDuplex=0x0400,
CmdNoTxPoll=0x0800, CmdReset=0x8000,
CmdInit=0x01, CmdStart=0x02, CmdStop=0x04, CmdRxOn=0x08,
CmdTxOn=0x10, Cmd1TxDemand=0x20, CmdRxDemand=0x40,
Cmd1EarlyRx=0x01, Cmd1EarlyTx=0x02, Cmd1FDuplex=0x04,
Cmd1NoTxPoll=0x08, Cmd1Reset=0x80,
};
#define MAX_MII_CNT 4
struct rhine_private {
/* Descriptor rings */
struct rx_desc *rx_ring;
......@@ -493,7 +486,6 @@ struct rhine_private {
struct pci_dev *pdev;
struct net_device_stats stats;
struct timer_list timer; /* Media monitoring timer. */
spinlock_t lock;
/* Frequently used values: keep some adjacent for cache effect. */
......@@ -502,23 +494,16 @@ struct rhine_private {
unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
unsigned int cur_tx, dirty_tx;
unsigned int rx_buf_sz; /* Based on MTU+slack. */
u16 chip_cmd; /* Current setting for ChipCmd */
u8 wolopts;
/* These values are keep track of the transceiver/media in use. */
u8 tx_thresh, rx_thresh;
/* MII transceiver section. */
unsigned char phys[MAX_MII_CNT]; /* MII device addresses. */
unsigned int mii_cnt; /* number of MIIs found, but only the first one is used */
u16 mii_status; /* last read MII status */
struct mii_if_info mii_if;
};
static int mdio_read(struct net_device *dev, int phy_id, int location);
static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
static int rhine_open(struct net_device *dev);
static void rhine_check_duplex(struct net_device *dev);
static void rhine_timer(unsigned long data);
static void rhine_tx_timeout(struct net_device *dev);
static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev);
static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
......@@ -530,6 +515,16 @@ static struct net_device_stats *rhine_get_stats(struct net_device *dev);
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static struct ethtool_ops netdev_ethtool_ops;
static int rhine_close(struct net_device *dev);
static void rhine_shutdown (struct device *gdev);
#define RHINE_WAIT_FOR(condition) do { \
int i=1024; \
while (!(condition) && --i) \
; \
if (debug > 1 && i < 512) \
printk(KERN_INFO "%s: %4d cycles used @ %s:%d\n", \
DRV_NAME, 1024-i, __func__, __LINE__); \
} while(0)
static inline u32 get_intr_status(struct net_device *dev)
{
......@@ -546,12 +541,13 @@ static inline u32 get_intr_status(struct net_device *dev)
/*
* Get power related registers into sane state.
* Returns content of power-event (WOL) registers.
* Notify user about past WOL event.
*/
static void rhine_power_init(struct net_device *dev)
{
long ioaddr = dev->base_addr;
struct rhine_private *rp = netdev_priv(dev);
u16 wolstat;
if (rp->quirks & rqWOL) {
/* Make sure chip is in power state D0 */
......@@ -566,63 +562,109 @@ static void rhine_power_init(struct net_device *dev)
if (rp->quirks & rq6patterns)
writeb(0x03, ioaddr + WOLcrClr1);
/* Save power-event status bits */
wolstat = readb(ioaddr + PwrcsrSet);
if (rp->quirks & rq6patterns)
wolstat |= (readb(ioaddr + PwrcsrSet1) & 0x03) << 8;
/* Clear power-event status bits */
writeb(0xFF, ioaddr + PwrcsrClr);
if (rp->quirks & rq6patterns)
writeb(0x03, ioaddr + PwrcsrClr1);
if (wolstat) {
char *reason;
switch (wolstat) {
case WOLmagic:
reason = "Magic packet";
break;
case WOLlnkon:
reason = "Link went up";
break;
case WOLlnkoff:
reason = "Link went down";
break;
case WOLucast:
reason = "Unicast packet";
break;
case WOLbmcast:
reason = "Multicast/broadcast packet";
break;
default:
reason = "Unknown";
}
printk("%s: Woke system up. Reason: %s.\n",
DRV_NAME, reason);
}
}
}
static void wait_for_reset(struct net_device *dev, u32 quirks, char *name)
static void rhine_chip_reset(struct net_device *dev)
{
long ioaddr = dev->base_addr;
int boguscnt = 20;
struct rhine_private *rp = netdev_priv(dev);
writeb(Cmd1Reset, ioaddr + ChipCmd1);
IOSYNC;
if (readw(ioaddr + ChipCmd) & CmdReset) {
if (readb(ioaddr + ChipCmd1) & Cmd1Reset) {
printk(KERN_INFO "%s: Reset not complete yet. "
"Trying harder.\n", name);
"Trying harder.\n", DRV_NAME);
/* Rhine-II needs to be forced sometimes */
if (quirks & rqForceReset)
/* Force reset */
if (rp->quirks & rqForceReset)
writeb(0x40, ioaddr + MiscCmd);
/* VT86C100A may need long delay after reset (dlink) */
/* Seen on Rhine-II as well (rl) */
while ((readw(ioaddr + ChipCmd) & CmdReset) && --boguscnt)
udelay(5);
/* Reset can take somewhat longer (rare) */
RHINE_WAIT_FOR(!(readb(ioaddr + ChipCmd1) & Cmd1Reset));
}
if (debug > 1)
printk(KERN_INFO "%s: Reset %s.\n", name,
boguscnt ? "succeeded" : "failed");
printk(KERN_INFO "%s: Reset %s.\n", dev->name,
(readb(ioaddr + ChipCmd1) & Cmd1Reset) ?
"failed" : "succeeded");
}
#ifdef USE_MMIO
static void __devinit enable_mmio(long ioaddr, u32 quirks)
static void __devinit enable_mmio(long pioaddr, u32 quirks)
{
int n;
if (quirks & rqRhineI) {
/* More recent docs say that this bit is reserved ... */
n = inb(ioaddr + ConfigA) | 0x20;
outb(n, ioaddr + ConfigA);
n = inb(pioaddr + ConfigA) | 0x20;
outb(n, pioaddr + ConfigA);
} else {
n = inb(ioaddr + ConfigD) | 0x80;
outb(n, ioaddr + ConfigD);
n = inb(pioaddr + ConfigD) | 0x80;
outb(n, pioaddr + ConfigD);
}
}
#endif
static void __devinit reload_eeprom(long ioaddr)
/*
* Loads bytes 0x00-0x05, 0x6E-0x6F, 0x78-0x7B from EEPROM
* (plus 0x6C for Rhine-I/II)
*/
static void __devinit rhine_reload_eeprom(long pioaddr, struct net_device *dev)
{
int i;
outb(0x20, ioaddr + MACRegEEcsr);
/* Typically 2 cycles to reload. */
for (i = 0; i < 150; i++)
if (! (inb(ioaddr + MACRegEEcsr) & 0x20))
break;
long ioaddr = dev->base_addr;
struct rhine_private *rp = netdev_priv(dev);
outb(0x20, pioaddr + MACRegEEcsr);
RHINE_WAIT_FOR(!(inb(pioaddr + MACRegEEcsr) & 0x20));
#ifdef USE_MMIO
/*
* Reloading from EEPROM overwrites ConfigA-D, so we must re-enable
* MMIO. If reloading EEPROM was done first this could be avoided, but
* it is not known if that still works with the "win98-reboot" problem.
*/
enable_mmio(pioaddr, rp->quirks);
#endif
/* Turn off EEPROM-controlled wake-up (magic packet) */
if (rp->quirks & rqWOL)
writeb(readb(ioaddr + ConfigA) & 0xFE, ioaddr + ConfigA);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
......@@ -634,23 +676,34 @@ static void rhine_poll(struct net_device *dev)
}
#endif
static void rhine_hw_init(struct net_device *dev, long pioaddr)
{
struct rhine_private *rp = netdev_priv(dev);
/* Reset the chip to erase previous misconfiguration. */
rhine_chip_reset(dev);
/* Rhine-I needs extra time to recuperate before EEPROM reload */
if (rp->quirks & rqRhineI)
msleep(5);
/* Reload EEPROM controlled bytes cleared by soft reset */
rhine_reload_eeprom(pioaddr, dev);
}
static int __devinit rhine_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct net_device *dev;
struct rhine_private *rp;
int i, option, rc;
int i, rc;
u8 pci_rev;
u32 quirks;
static int card_idx = -1;
long ioaddr;
long pioaddr;
long memaddr;
int io_size;
int phy, phy_idx = 0;
#ifdef USE_MMIO
long ioaddr0;
#endif
const char *name;
long ioaddr;
int io_size, phy_id;
const char *name, *mname;
/* when built into the kernel, we only print version if device is found */
#ifndef MODULE
......@@ -659,26 +712,47 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
printk(version);
#endif
card_idx++;
option = card_idx < MAX_UNITS ? options[card_idx] : 0;
pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
io_size = 256;
if (pci_rev < VT6102) {
quirks = rqRhineI | rqDavicomPhy;
phy_id = 0;
quirks = 0;
name = "Rhine";
mname = "unknown";
if (pci_rev < VTunknown0) {
quirks = rqRhineI;
io_size = 128;
name = "VT86C100A Rhine";
mname = "VT86C100A";
}
else {
else if (pci_rev >= VT6102) {
quirks = rqWOL | rqForceReset;
if (pci_rev < VT6105) {
name = "Rhine II";
quirks |= rqStatusWBRace; /* Rhine-II exclusive */
if (pci_rev < VT8231)
mname = "VT6102";
else if (pci_rev < VT8233)
mname = "VT8231";
else if (pci_rev < VT8235)
mname = "VT8233";
else if (pci_rev < VT8237)
mname = "VT8235";
else if (pci_rev < VTunknown1)
mname = "VT8237";
}
else {
name = "Rhine III";
phy_id = 1; /* Integrated PHY, phy_id fixed to 1 */
if (pci_rev >= VT6105_B0)
quirks |= rq6patterns;
if (pci_rev < VT6105L)
mname = "VT6105";
else if (pci_rev < VT6107)
mname = "VT6105L";
else if (pci_rev < VT6105M)
mname = "VT6107";
else if (pci_rev >= VT6105M)
mname = "Management Adapter VT6105M";
}
}
......@@ -702,28 +776,26 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
goto err_out;
}
ioaddr = pci_resource_start(pdev, 0);
pioaddr = pci_resource_start(pdev, 0);
memaddr = pci_resource_start(pdev, 1);
pci_set_master(pdev);
dev = alloc_etherdev(sizeof(*rp));
if (dev == NULL) {
dev = alloc_etherdev(sizeof(struct rhine_private));
if (!dev) {
rc = -ENOMEM;
printk(KERN_ERR "init_ethernet failed for card #%d\n",
card_idx);
printk(KERN_ERR "alloc_etherdev failed\n");
goto err_out;
}
SET_MODULE_OWNER(dev);
SET_NETDEV_DEV(dev, &pdev->dev);
rc = pci_request_regions(pdev, shortname);
rc = pci_request_regions(pdev, DRV_NAME);
if (rc)
goto err_out_free_netdev;
#ifdef USE_MMIO
ioaddr0 = ioaddr;
enable_mmio(ioaddr0, quirks);
enable_mmio(pioaddr, quirks);
ioaddr = (long) ioremap(memaddr, io_size);
if (!ioaddr) {
......@@ -737,7 +809,7 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
i = 0;
while (mmio_verify_registers[i]) {
int reg = mmio_verify_registers[i++];
unsigned char a = inb(ioaddr0+reg);
unsigned char a = inb(pioaddr+reg);
unsigned char b = readb(ioaddr+reg);
if (a != b) {
rc = -EIO;
......@@ -746,65 +818,41 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
goto err_out_unmap;
}
}
#else
ioaddr = pioaddr;
#endif /* USE_MMIO */
dev->base_addr = ioaddr;
rp = netdev_priv(dev);
rp->quirks = quirks;
/* Get chip registers into a sane state */
rhine_power_init(dev);
/* Reset the chip to erase previous misconfiguration. */
writew(CmdReset, ioaddr + ChipCmd);
wait_for_reset(dev, quirks, shortname);
/* Reload the station address from the EEPROM. */
#ifdef USE_MMIO
reload_eeprom(ioaddr0);
/* Reloading from eeprom overwrites cfgA-D, so we must re-enable MMIO.
If reload_eeprom() was done first this could be avoided, but it is
not known if that still works with the "win98-reboot" problem. */
enable_mmio(ioaddr0, quirks);
#else
reload_eeprom(ioaddr);
#endif
rhine_hw_init(dev, pioaddr);
for (i = 0; i < 6; i++)
dev->dev_addr[i] = readb(ioaddr + StationAddr + i);
if (!is_valid_ether_addr(dev->dev_addr)) {
rc = -EIO;
printk(KERN_ERR "Invalid MAC address for card #%d\n", card_idx);
printk(KERN_ERR "Invalid MAC address\n");
goto err_out_unmap;
}
if (quirks & rqWOL) {
/*
* for 3065D, EEPROM reloaded will cause bit 0 in MAC_REG_CFGA
* turned on. it makes MAC receive magic packet
* automatically. So, we turn it off. (D-Link)
*/
writeb(readb(ioaddr + ConfigA) & 0xFE, ioaddr + ConfigA);
}
/* Select backoff algorithm */
if (backoff)
writeb(readb(ioaddr + ConfigD) & (0xF0 | backoff),
ioaddr + ConfigD);
/* For Rhine-I/II, phy_id is loaded from EEPROM */
if (!phy_id)
phy_id = readb(ioaddr + 0x6C);
dev->irq = pdev->irq;
rp = netdev_priv(dev);
spin_lock_init(&rp->lock);
rp->pdev = pdev;
rp->quirks = quirks;
rp->mii_if.dev = dev;
rp->mii_if.mdio_read = mdio_read;
rp->mii_if.mdio_write = mdio_write;
rp->mii_if.phy_id_mask = 0x1f;
rp->mii_if.reg_num_mask = 0x1f;
if (dev->mem_start)
option = dev->mem_start;
/* The chip-specific entries in the device structure. */
dev->open = rhine_open;
dev->hard_start_xmit = rhine_start_tx;
......@@ -826,22 +874,8 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
if (rc)
goto err_out_unmap;
/* The lower four bits are the media type. */
if (option > 0) {
if (option & 0x220)
rp->mii_if.full_duplex = 1;
}
if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
rp->mii_if.full_duplex = 1;
if (rp->mii_if.full_duplex) {
printk(KERN_INFO "%s: Set to forced full duplex, "
"autonegotiation disabled.\n", dev->name);
rp->mii_if.force_media = 1;
}
printk(KERN_INFO "%s: VIA %s at 0x%lx, ",
dev->name, name,
printk(KERN_INFO "%s: VIA %s (%s) at 0x%lx, ",
dev->name, name, mname,
#ifdef USE_MMIO
memaddr
#else
......@@ -855,17 +889,15 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
pci_set_drvdata(pdev, dev);
rp->phys[0] = 1; /* Standard for this chip. */
for (phy = 1; phy < 32 && phy_idx < MAX_MII_CNT; phy++) {
int mii_status = mdio_read(dev, phy, 1);
{
int mii_status = mdio_read(dev, phy_id, 1);
if (mii_status != 0xffff && mii_status != 0x0000) {
rp->phys[phy_idx++] = phy;
rp->mii_if.advertising = mdio_read(dev, phy, 4);
rp->mii_if.advertising = mdio_read(dev, phy_id, 4);
printk(KERN_INFO "%s: MII PHY found at address "
"%d, status 0x%4.4x advertising %4.4x "
"Link %4.4x.\n", dev->name, phy,
"Link %4.4x.\n", dev->name, phy_id,
mii_status, rp->mii_if.advertising,
mdio_read(dev, phy, 5));
mdio_read(dev, phy_id, 5));
/* set IFF_RUNNING */
if (mii_status & BMSR_LSTATUS)
......@@ -873,27 +905,9 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
else
netif_carrier_off(dev);
break;
}
}
rp->mii_cnt = phy_idx;
rp->mii_if.phy_id = rp->phys[0];
/* Allow forcing the media type. */
if (option > 0) {
if (option & 0x220)
rp->mii_if.full_duplex = 1;
if (option & 0x330) {
printk(KERN_INFO " Forcing %dMbs %s-duplex "
"operation.\n",
(option & 0x300 ? 100 : 10),
(option & 0x220 ? "full" : "half"));
if (rp->mii_cnt)
mdio_write(dev, rp->phys[0], MII_BMCR,
((option & 0x300) ? 0x2000 : 0) | /* 100mbps? */
((option & 0x220) ? 0x0100 : 0)); /* Full duplex? */
}
}
rp->mii_if.phy_id = phy_id;
return 0;
......@@ -1065,6 +1079,21 @@ static void free_tbufs(struct net_device* dev)
}
}
static void rhine_check_media(struct net_device *dev, unsigned int init_media)
{
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
mii_check_media(&rp->mii_if, debug, init_media);
if (rp->mii_if.full_duplex)
writeb(readb(ioaddr + ChipCmd1) | Cmd1FDuplex,
ioaddr + ChipCmd1);
else
writeb(readb(ioaddr + ChipCmd1) & ~Cmd1FDuplex,
ioaddr + ChipCmd1);
}
static void init_registers(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
......@@ -1080,7 +1109,6 @@ static void init_registers(struct net_device *dev)
writeb(0x20, ioaddr + TxConfig);
rp->tx_thresh = 0x20;
rp->rx_thresh = 0x60; /* Written in rhine_set_rx_mode(). */
rp->mii_if.full_duplex = 0;
writel(rp->rx_ring_dma, ioaddr + RxRingPtr);
writel(rp->tx_ring_dma, ioaddr + TxRingPtr);
......@@ -1094,17 +1122,44 @@ static void init_registers(struct net_device *dev)
IntrPCIErr | IntrStatsMax | IntrLinkChange,
ioaddr + IntrEnable);
rp->chip_cmd = CmdStart|CmdTxOn|CmdRxOn|CmdNoTxPoll;
if (rp->mii_if.force_media)
rp->chip_cmd |= CmdFDuplex;
writew(rp->chip_cmd, ioaddr + ChipCmd);
writew(CmdStart | CmdTxOn | CmdRxOn | (Cmd1NoTxPoll << 8),
ioaddr + ChipCmd);
rhine_check_media(dev, 1);
}
/* Enable MII link status auto-polling (required for IntrLinkChange) */
static void rhine_enable_linkmon(long ioaddr)
{
writeb(0, ioaddr + MIICmd);
writeb(MII_BMSR, ioaddr + MIIRegAddr);
writeb(0x80, ioaddr + MIICmd);
rhine_check_duplex(dev);
RHINE_WAIT_FOR((readb(ioaddr + MIIRegAddr) & 0x20));
/* The LED outputs of various MII xcvrs should be configured. */
/* For NS or Mison phys, turn on bit 1 in register 0x17 */
mdio_write(dev, rp->phys[0], 0x17, mdio_read(dev, rp->phys[0], 0x17) |
0x0001);
writeb(MII_BMSR | 0x40, ioaddr + MIIRegAddr);
}
/* Disable MII link status auto-polling (required for MDIO access) */
static void rhine_disable_linkmon(long ioaddr, u32 quirks)
{
writeb(0, ioaddr + MIICmd);
if (quirks & rqRhineI) {
writeb(0x01, ioaddr + MIIRegAddr); // MII_BMSR
/* Can be called from ISR. Evil. */
mdelay(1);
/* 0x80 must be set immediately before turning it off */
writeb(0x80, ioaddr + MIICmd);
RHINE_WAIT_FOR(readb(ioaddr + MIIRegAddr) & 0x20);
/* Heh. Now clear 0x80 again. */
writeb(0, ioaddr + MIICmd);
}
else
RHINE_WAIT_FOR(readb(ioaddr + MIIRegAddr) & 0x80);
}
/* Read and write over the MII Management Data I/O (MDIO) interface. */
......@@ -1112,156 +1167,72 @@ static void init_registers(struct net_device *dev)
static int mdio_read(struct net_device *dev, int phy_id, int regnum)
{
long ioaddr = dev->base_addr;
int boguscnt = 1024;
struct rhine_private *rp = netdev_priv(dev);
int result;
rhine_disable_linkmon(ioaddr, rp->quirks);
/* Wait for a previous command to complete. */
while ((readb(ioaddr + MIICmd) & 0x60) && --boguscnt > 0)
;
writeb(0x00, ioaddr + MIICmd);
writeb(0, ioaddr + MIICmd);
writeb(phy_id, ioaddr + MIIPhyAddr);
writeb(regnum, ioaddr + MIIRegAddr);
writeb(0x40, ioaddr + MIICmd); /* Trigger read */
boguscnt = 1024;
while ((readb(ioaddr + MIICmd) & 0x40) && --boguscnt > 0)
;
return readw(ioaddr + MIIData);
RHINE_WAIT_FOR(!(readb(ioaddr + MIICmd) & 0x40));
result = readw(ioaddr + MIIData);
rhine_enable_linkmon(ioaddr);
return result;
}
static void mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
{
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
int boguscnt = 1024;
if (phy_id == rp->phys[0]) {
switch (regnum) {
case MII_BMCR: /* Is user forcing speed/duplex? */
if (value & 0x9000) /* Autonegotiation. */
rp->mii_if.force_media = 0;
else
rp->mii_if.full_duplex = (value & 0x0100) ? 1 : 0;
break;
case MII_ADVERTISE:
rp->mii_if.advertising = value;
break;
}
}
rhine_disable_linkmon(ioaddr, rp->quirks);
/* Wait for a previous command to complete. */
while ((readb(ioaddr + MIICmd) & 0x60) && --boguscnt > 0)
;
writeb(0x00, ioaddr + MIICmd);
writeb(0, ioaddr + MIICmd);
writeb(phy_id, ioaddr + MIIPhyAddr);
writeb(regnum, ioaddr + MIIRegAddr);
writew(value, ioaddr + MIIData);
writeb(0x20, ioaddr + MIICmd); /* Trigger write. */
}
writeb(0x20, ioaddr + MIICmd); /* Trigger write */
RHINE_WAIT_FOR(!(readb(ioaddr + MIICmd) & 0x20));
rhine_enable_linkmon(ioaddr);
}
static int rhine_open(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
int i;
/* Reset the chip. */
writew(CmdReset, ioaddr + ChipCmd);
int rc;
i = request_irq(rp->pdev->irq, &rhine_interrupt, SA_SHIRQ, dev->name,
rc = request_irq(rp->pdev->irq, &rhine_interrupt, SA_SHIRQ, dev->name,
dev);
if (i)
return i;
if (rc)
return rc;
if (debug > 1)
printk(KERN_DEBUG "%s: rhine_open() irq %d.\n",
dev->name, rp->pdev->irq);
i = alloc_ring(dev);
if (i)
return i;
rc = alloc_ring(dev);
if (rc)
return rc;
alloc_rbufs(dev);
alloc_tbufs(dev);
wait_for_reset(dev, rp->quirks, dev->name);
rhine_chip_reset(dev);
init_registers(dev);
if (debug > 2)
printk(KERN_DEBUG "%s: Done rhine_open(), status %4.4x "
"MII status: %4.4x.\n",
dev->name, readw(ioaddr + ChipCmd),
mdio_read(dev, rp->phys[0], MII_BMSR));
mdio_read(dev, rp->mii_if.phy_id, MII_BMSR));
netif_start_queue(dev);
/* Set the timer to check for link beat. */
init_timer(&rp->timer);
rp->timer.expires = jiffies + 2 * HZ/100;
rp->timer.data = (unsigned long)dev;
rp->timer.function = &rhine_timer; /* timer handler */
add_timer(&rp->timer);
return 0;
}
static void rhine_check_duplex(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
int mii_lpa = mdio_read(dev, rp->phys[0], MII_LPA);
int negotiated = mii_lpa & rp->mii_if.advertising;
int duplex;
if (rp->mii_if.force_media || mii_lpa == 0xffff)
return;
duplex = (negotiated & 0x0100) || (negotiated & 0x01C0) == 0x0040;
if (rp->mii_if.full_duplex != duplex) {
rp->mii_if.full_duplex = duplex;
if (debug)
printk(KERN_INFO "%s: Setting %s-duplex based on "
"MII #%d link partner capability of %4.4x.\n",
dev->name, duplex ? "full" : "half",
rp->phys[0], mii_lpa);
if (duplex)
rp->chip_cmd |= CmdFDuplex;
else
rp->chip_cmd &= ~CmdFDuplex;
writew(rp->chip_cmd, ioaddr + ChipCmd);
}
}
static void rhine_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
int next_tick = 10*HZ;
int mii_status;
if (debug > 3) {
printk(KERN_DEBUG "%s: VIA Rhine monitor tick, status %4.4x.\n",
dev->name, readw(ioaddr + IntrStatus));
}
spin_lock_irq (&rp->lock);
rhine_check_duplex(dev);
/* make IFF_RUNNING follow the MII status bit "Link established" */
mii_status = mdio_read(dev, rp->phys[0], MII_BMSR);
if ((mii_status & BMSR_LSTATUS) != (rp->mii_status & BMSR_LSTATUS)) {
if (mii_status & BMSR_LSTATUS)
netif_carrier_on(dev);
else
netif_carrier_off(dev);
}
rp->mii_status = mii_status;
spin_unlock_irq(&rp->lock);
rp->timer.expires = jiffies + next_tick;
add_timer(&rp->timer);
}
static void rhine_tx_timeout(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
......@@ -1270,16 +1241,13 @@ static void rhine_tx_timeout(struct net_device *dev)
printk(KERN_WARNING "%s: Transmit timed out, status %4.4x, PHY status "
"%4.4x, resetting...\n",
dev->name, readw(ioaddr + IntrStatus),
mdio_read(dev, rp->phys[0], MII_BMSR));
mdio_read(dev, rp->mii_if.phy_id, MII_BMSR));
/* protect against concurrent rx interrupts */
disable_irq(rp->pdev->irq);
spin_lock(&rp->lock);
/* Reset the chip. */
writew(CmdReset, ioaddr + ChipCmd);
/* clear all descriptors */
free_tbufs(dev);
free_rbufs(dev);
......@@ -1287,7 +1255,7 @@ static void rhine_tx_timeout(struct net_device *dev)
alloc_rbufs(dev);
/* Reinitialize the hardware. */
wait_for_reset(dev, rp->quirks, dev->name);
rhine_chip_reset(dev);
init_registers(dev);
spin_unlock(&rp->lock);
......@@ -1301,8 +1269,8 @@ static void rhine_tx_timeout(struct net_device *dev)
static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
unsigned entry;
u32 intr_status;
/* Caution: the write order is important here, set the field
with the "ownership" bits last. */
......@@ -1353,14 +1321,9 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev)
/* Non-x86 Todo: explicitly flush cache lines here. */
/*
* Wake the potentially-idle transmit channel unless errors are
* pending (the ISR must sort them out first).
*/
intr_status = get_intr_status(dev);
if ((intr_status & IntrTxErrSummary) == 0) {
writew(CmdTxDemand | rp->chip_cmd, dev->base_addr + ChipCmd);
}
/* Wake the potentially-idle transmit channel */
writeb(readb(ioaddr + ChipCmd1) | Cmd1TxDemand,
ioaddr + ChipCmd1);
IOSYNC;
if (rp->cur_tx == rp->dirty_tx + TX_QUEUE_LEN)
......@@ -1408,11 +1371,10 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs *
if (intr_status & (IntrTxErrSummary | IntrTxDone)) {
if (intr_status & IntrTxErrSummary) {
int cnt = 20;
/* Avoid scavenging before Tx engine turned off */
while ((readw(ioaddr+ChipCmd) & CmdTxOn) && --cnt)
udelay(5);
if (debug > 2 && !cnt)
RHINE_WAIT_FOR(!(readb(ioaddr+ChipCmd) & CmdTxOn));
if (debug > 2 &&
readb(ioaddr+ChipCmd) & CmdTxOn)
printk(KERN_WARNING "%s: "
"rhine_interrupt() Tx engine"
"still on.\n", dev->name);
......@@ -1572,10 +1534,6 @@ static void rhine_rx(struct net_device *dev)
rp->rx_buf_sz,
PCI_DMA_FROMDEVICE);
/* *_IP_COPYSUM isn't defined anywhere and
eth_copy_and_sum is memcpy for all archs so
this is kind of pointless right now
... or? */
eth_copy_and_sum(skb,
rp->rx_skbuff[entry]->tail,
pkt_len, 0);
......@@ -1627,10 +1585,6 @@ static void rhine_rx(struct net_device *dev)
}
rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn);
}
/* Pre-emptively restart Rx engine. */
writew(readw(dev->base_addr + ChipCmd) | CmdRxOn | CmdRxDemand,
dev->base_addr + ChipCmd);
}
/*
......@@ -1664,7 +1618,10 @@ static void rhine_restart_tx(struct net_device *dev) {
writel(rp->tx_ring_dma + entry * sizeof(struct tx_desc),
ioaddr + TxRingPtr);
writew(CmdTxDemand | rp->chip_cmd, ioaddr + ChipCmd);
writeb(readb(ioaddr + ChipCmd) | CmdTxOn,
ioaddr + ChipCmd);
writeb(readb(ioaddr + ChipCmd1) | Cmd1TxDemand,
ioaddr + ChipCmd1);
IOSYNC;
}
else {
......@@ -1684,20 +1641,8 @@ static void rhine_error(struct net_device *dev, int intr_status)
spin_lock(&rp->lock);
if (intr_status & (IntrLinkChange)) {
if (readb(ioaddr + MIIStatus) & 0x02) {
/* Link failed, restart autonegotiation. */
if (rp->quirks & rqRhineI)
mdio_write(dev, rp->phys[0], MII_BMCR, 0x3300);
} else
rhine_check_duplex(dev);
if (debug)
printk(KERN_ERR "%s: MII status changed: "
"Autonegotiation advertising %4.4x partner "
"%4.4x.\n", dev->name,
mdio_read(dev, rp->phys[0], MII_ADVERTISE),
mdio_read(dev, rp->phys[0], MII_LPA));
}
if (intr_status & IntrLinkChange)
rhine_check_media(dev, 0);
if (intr_status & IntrStatsMax) {
rp->stats.rx_crc_errors += readw(ioaddr + RxCRCErrs);
rp->stats.rx_missed_errors += readw(ioaddr + RxMissed);
......@@ -1790,7 +1735,7 @@ static void rhine_set_rx_mode(struct net_device *dev)
i++, mclist = mclist->next) {
int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
}
writel(mc_filter[0], ioaddr + MulticastFilter0);
writel(mc_filter[1], ioaddr + MulticastFilter1);
......@@ -1856,6 +1801,39 @@ static void netdev_set_msglevel(struct net_device *dev, u32 value)
debug = value;
}
static void rhine_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rhine_private *rp = netdev_priv(dev);
if (!(rp->quirks & rqWOL))
return;
spin_lock_irq(&rp->lock);
wol->supported = WAKE_PHY | WAKE_MAGIC |
WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */
wol->wolopts = rp->wolopts;
spin_unlock_irq(&rp->lock);
}
static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rhine_private *rp = netdev_priv(dev);
u32 support = WAKE_PHY | WAKE_MAGIC |
WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */
if (!(rp->quirks & rqWOL))
return -EINVAL;
if (wol->wolopts & ~support)
return -EINVAL;
spin_lock_irq(&rp->lock);
rp->wolopts = wol->wolopts;
spin_unlock_irq(&rp->lock);
return 0;
}
static struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_settings = netdev_get_settings,
......@@ -1864,6 +1842,8 @@ static struct ethtool_ops netdev_ethtool_ops = {
.get_link = netdev_get_link,
.get_msglevel = netdev_get_msglevel,
.set_msglevel = netdev_set_msglevel,
.get_wol = rhine_get_wol,
.set_wol = rhine_set_wol,
.get_sg = ethtool_op_get_sg,
.get_tx_csum = ethtool_op_get_tx_csum,
};
......@@ -1888,8 +1868,6 @@ static int rhine_close(struct net_device *dev)
long ioaddr = dev->base_addr;
struct rhine_private *rp = netdev_priv(dev);
del_timer_sync(&rp->timer);
spin_lock_irq(&rp->lock);
netif_stop_queue(dev);
......@@ -1936,12 +1914,51 @@ static void __devexit rhine_remove_one(struct pci_dev *pdev)
pci_set_drvdata(pdev, NULL);
}
static void rhine_shutdown (struct device *gendev)
{
struct pci_dev *pdev = to_pci_dev(gendev);
struct net_device *dev = pci_get_drvdata(pdev);
struct rhine_private *rp = netdev_priv(dev);
long ioaddr = dev->base_addr;
rhine_power_init(dev);
/* Make sure we use pattern 0, 1 and not 4, 5 */
if (rp->quirks & rq6patterns)
writeb(0x04, ioaddr + 0xA7);
if (rp->wolopts & WAKE_MAGIC)
writeb(WOLmagic, ioaddr + WOLcrSet);
if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
writeb(WOLbmcast, ioaddr + WOLcgSet);
if (rp->wolopts & WAKE_PHY)
writeb(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
if (rp->wolopts & WAKE_UCAST)
writeb(WOLucast, ioaddr + WOLcrSet);
/* Enable legacy WOL (for old motherboards) */
writeb(0x01, ioaddr + PwcfgSet);
writeb(readb(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
/* Hit power state D3 (sleep) */
writeb(readb(ioaddr + StickyHW) | 0x03, ioaddr + StickyHW);
/* TODO: Check use of pci_enable_wake() */
}
static struct pci_driver rhine_driver = {
.name = "via-rhine",
.name = DRV_NAME,
.id_table = rhine_pci_tbl,
.probe = rhine_init_one,
.remove = __devexit_p(rhine_remove_one),
.driver = {
.shutdown = rhine_shutdown,
}
};
......
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