patch-2.1.128 linux/drivers/net/rtl8139.c
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- Lines: 1601
- Date:
Sun Nov 8 13:48:06 1998
- Orig file:
v2.1.127/linux/drivers/net/rtl8139.c
- Orig date:
Fri May 8 23:14:48 1998
diff -u --recursive --new-file v2.1.127/linux/drivers/net/rtl8139.c linux/drivers/net/rtl8139.c
@@ -1,6 +1,6 @@
/* rtl8139.c: A RealTek RTL8129/8139 Fast Ethernet driver for Linux. */
/*
- Written 1997 by Donald Becker.
+ Written 1997-1998 by Donald Becker.
This software may be used and distributed according to the terms
of the GNU Public License, incorporated herein by reference.
@@ -15,14 +15,27 @@
Support and updates available at
http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8139.html
+
+ Twister-tuning code contributed by Kinston <shangh@realtek.com.tw>.
*/
static const char *version =
-"rtl8139.c:v0.14 12/9/97 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8139.html\n";
+"rtl8139.c:v1.04 9/22/98 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8139.html\n";
/* A few user-configurable values. */
/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 10;
+static int max_interrupt_work = 20;
+#define rtl8129_debug debug
+static int rtl8129_debug = 1;
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+
+/* Used to pass the full-duplex flag, etc. */
+#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};
/* Size of the in-memory receive ring. */
#define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K */
@@ -37,11 +50,11 @@
/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024. */
#define RX_FIFO_THRESH 4 /* Rx buffer level before first PCI xfer. */
#define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 bytes */
-#define TX_DMA_BURST 4
+#define TX_DMA_BURST 4 /* Calculate as 16<<val. */
/* Operational parameters that usually are not changed. */
/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT ((4000*HZ)/1000)
+#define TX_TIMEOUT (4*HZ)
#include <linux/config.h>
#ifdef MODULE
@@ -59,79 +72,49 @@
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
-#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/malloc.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
-#include <asm/processor.h> /* Processor type for cache alignment. */
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
+#include <asm/processor.h> /* Processor type for cache alignment. */
+#include <asm/bitops.h>
+#include <asm/io.h>
-/* Kernel compatibility defines, common to David Hind's PCMCIA package.
+/* Kernel compatibility defines, some common to David Hind's PCMCIA package.
This is only in the support-all-kernels source code. */
-#include <linux/version.h> /* Evil, but neccessary */
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10300
-#define RUN_AT(x) (x) /* What to put in timer->expires. */
-#define DEV_ALLOC_SKB(len) alloc_skb(len, GFP_ATOMIC)
-#define virt_to_bus(addr) ((unsigned long)addr)
-#define bus_to_virt(addr) ((void*)addr)
-
-#else /* 1.3.0 and later */
#define RUN_AT(x) (jiffies + (x))
-#define DEV_ALLOC_SKB(len) dev_alloc_skb(len + 2)
-#endif
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10338
-#ifdef MODULE
-#if !defined(CONFIG_MODVERSIONS) && !defined(__NO_VERSION__)
-char kernel_version[] = UTS_RELEASE;
-#endif
-#else
-#undef MOD_INC_USE_COUNT
-#define MOD_INC_USE_COUNT
-#undef MOD_DEC_USE_COUNT
-#define MOD_DEC_USE_COUNT
-#endif
-#endif /* 1.3.38 */
-
-#if (LINUX_VERSION_CODE >= 0x10344)
-#define NEW_MULTICAST
#include <linux/delay.h>
-#endif
-#ifdef SA_SHIRQ
-#define FREE_IRQ(irqnum, dev) free_irq(irqnum, dev)
-#define REQUEST_IRQ(i,h,f,n, instance) request_irq(i,h,f,n, instance)
-#define IRQ(irq, dev_id, pt_regs) (irq, dev_id, pt_regs)
+#if LINUX_VERSION_CODE < 0x20123
+#define test_and_set_bit(val, addr) set_bit(val, addr)
+#endif
+#if LINUX_VERSION_CODE <= 0x20139
+#define net_device_stats enet_statistics
#else
-#define FREE_IRQ(irqnum, dev) free_irq(irqnum)
-#define REQUEST_IRQ(i,h,f,n, instance) request_irq(i,h,f,n)
-#define IRQ(irq, dev_id, pt_regs) (irq, pt_regs)
+#define NETSTATS_VER2
#endif
-
-#if (LINUX_VERSION_CODE < 0x20123)
-#define test_and_set_bit(val, addr) set_bit(val, addr)
+#if LINUX_VERSION_CODE < 0x20155 || defined(CARDBUS)
+/* Grrrr, the PCI code changed, but did not consider CardBus... */
#include <linux/bios32.h>
+#define PCI_SUPPORT_VER1
+#else
+#define PCI_SUPPORT_VER2
+#endif
+#if LINUX_VERSION_CODE < 0x20159
+#define dev_free_skb(skb) dev_kfree_skb(skb, FREE_WRITE);
+#else
+#define dev_free_skb(skb) dev_kfree_skb(skb);
#endif
/* The I/O extent. */
#define RTL8129_TOTAL_SIZE 0x80
-#ifdef HAVE_DEVLIST
-struct netdev_entry rtl8139_drv =
-{"RTL8139", rtl8139_probe, RTL8129_TOTAL_SIZE, NULL};
-#endif
-
-static int rtl8129_debug = 1;
-
/*
Theory of Operation
@@ -177,16 +160,45 @@
IVc. Errata
*/
+
+
+/* This table drives the PCI probe routines. It's mostly boilerplate in all
+ of the drivers, and will likely be provided by some future kernel.
+ Note the matching code -- the first table entry matchs all 56** cards but
+ second only the 1234 card.
+*/
+enum pci_flags_bit {
+ PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
+ PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3,
+};
+struct pci_id_info {
+ const char *name;
+ u16 vendor_id, device_id, device_id_mask, flags;
+ int io_size;
+ struct device *(*probe1)(int pci_bus, int pci_devfn, struct device *dev,
+ long ioaddr, int irq, int chip_idx, int fnd_cnt);
+};
+
+static struct device * rtl8129_probe1(int pci_bus, int pci_devfn,
+ struct device *dev, long ioaddr,
+ int irq, int chp_idx, int fnd_cnt);
+
+static struct pci_id_info pci_tbl[] =
+{{ "RealTek RTL8129 Fast Ethernet",
+ 0x10ec, 0x8129, 0xffff, PCI_USES_IO|PCI_USES_MASTER, 0x80, rtl8129_probe1},
+ { "RealTek RTL8139 Fast Ethernet",
+ 0x10ec, 0x8139, 0xffff, PCI_USES_IO|PCI_USES_MASTER, 0x80, rtl8129_probe1},
+ { "RealTek RTL8139 Fast Ethernet (mislabeled)",
+ 0x1113, 0x1211, 0xffff, PCI_USES_IO|PCI_USES_MASTER, 0x80, rtl8129_probe1},
+ {0,}, /* 0 terminated list. */
+};
+
+/* The capability table matches the chip table above. */
+enum {HAS_MII_XCVR=0x01, HAS_CHIP_XCVR=0x02, HAS_LNK_CHNG=0x04};
+static int rtl_cap_tbl[] = {
+ HAS_MII_XCVR, HAS_CHIP_XCVR|HAS_LNK_CHNG, HAS_CHIP_XCVR|HAS_LNK_CHNG,
+};
-#ifndef PCI_VENDOR_ID_REALTEK
-#define PCI_VENDOR_ID_REALTEK 0x10ec
-#endif
-#ifndef PCI_DEVICE_ID_REALTEK_8129
-#define PCI_DEVICE_ID_REALTEK_8129 0x8129
-#endif
-#ifndef PCI_DEVICE_ID_REALTEK_8139
-#define PCI_DEVICE_ID_REALTEK_8139 0x8139
-#endif
/* The rest of these values should never change. */
#define NUM_TX_DESC 4 /* Number of Tx descriptor registers. */
@@ -195,7 +207,7 @@
enum RTL8129_registers {
MAC0=0, /* Ethernet hardware address. */
MAR0=8, /* Multicast filter. */
- TxStat0=0x10, /* Transmit status (Four 32bit registers). */
+ TxStatus0=0x10, /* Transmit status (Four 32bit registers). */
TxAddr0=0x20, /* Tx descriptors (also four 32bit). */
RxBuf=0x30, RxEarlyCnt=0x34, RxEarlyStatus=0x36,
ChipCmd=0x37, RxBufPtr=0x38, RxBufAddr=0x3A,
@@ -206,7 +218,12 @@
Cfg9346=0x50, Config0=0x51, Config1=0x52,
FlashReg=0x54, GPPinData=0x58, GPPinDir=0x59, MII_SMI=0x5A, HltClk=0x5B,
MultiIntr=0x5C, TxSummary=0x60,
- BMCR=0x62, BMSR=0x64, NWayAdvert=0x66, NWayLPAR=0x68, NWayExpansion=0x6A,
+ MII_BMCR=0x62, MII_BMSR=0x64, NWayAdvert=0x66, NWayLPAR=0x68,
+ NWayExpansion=0x6A,
+ /* Undocumented registers, but required for proper operation. */
+ FIFOTMS=0x70, /* FIFO Test Mode Select */
+ CSCR=0x74, /* Chip Status and Configuration Register. */
+ PARA78=0x78, PARA7c=0x7c, /* Magic transceiver parameter register. */
};
enum ChipCmdBits {
@@ -228,25 +245,44 @@
RxBadAlign=0x0002, RxStatusOK=0x0001,
};
+enum CSCRBits {
+ CSCR_LinkOKBit=0x0400, CSCR_LinkChangeBit=0x0800,
+ CSCR_LinkStatusBits=0x0f000, CSCR_LinkDownOffCmd=0x003c0,
+ CSCR_LinkDownCmd=0x0f3c0,
+};
+
+/* Twister tuning parameters from RealTek. Completely undocumented. */
+unsigned long param[4][4]={
+ {0x0cb39de43,0x0cb39ce43,0x0fb38de03,0x0cb38de43},
+ {0x0cb39de43,0x0cb39ce43,0x0cb39ce83,0x0cb39ce83},
+ {0x0cb39de43,0x0cb39ce43,0x0cb39ce83,0x0cb39ce83},
+ {0x0bb39de43,0x0bb39ce43,0x0bb39ce83,0x0bb39ce83}
+};
+
struct rtl8129_private {
char devname[8]; /* Used only for kernel debugging. */
const char *product_name;
struct device *next_module;
int chip_id;
int chip_revision;
+ unsigned char pci_bus, pci_devfn;
+#if LINUX_VERSION_CODE > 0x20139
+ struct net_device_stats stats;
+#else
struct enet_statistics stats;
+#endif
struct timer_list timer; /* Media selection timer. */
- unsigned int cur_rx, cur_tx; /* The next free and used entries */
- unsigned int dirty_rx, dirty_tx;
+ unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */
+ unsigned int cur_tx, dirty_tx, tx_flag;
/* The saved address of a sent-in-place packet/buffer, for skfree(). */
struct sk_buff* tx_skbuff[NUM_TX_DESC];
unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
unsigned char *rx_ring;
unsigned char *tx_bufs; /* Tx bounce buffer region. */
- unsigned char mc_filter[8]; /* Current multicast filter. */
char phys[4]; /* MII device addresses. */
unsigned int tx_full:1; /* The Tx queue is full. */
unsigned int full_duplex:1; /* Full-duplex operation requested. */
+ unsigned int duplex_lock:1; /* Full-duplex operation requested. */
unsigned int default_port:4; /* Last dev->if_port value. */
unsigned int media2:4; /* Secondary monitored media port. */
unsigned int medialock:1; /* Don't sense media type. */
@@ -254,24 +290,21 @@
};
#ifdef MODULE
-/* Used to pass the full-duplex flag, etc. */
-static int options[] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[] = {-1, -1, -1, -1, -1, -1, -1, -1};
-#if LINUX_VERSION_CODE > 0x20118
+#if LINUX_VERSION_CODE > 0x20115
MODULE_AUTHOR("Donald Becker <becker@cesdis.gsfc.nasa.gov>");
MODULE_DESCRIPTION("RealTek RTL8129/8139 Fast Ethernet driver");
-MODULE_PARM(debug, "i");
-MODULE_PARM(options, "1-" __MODULE_STRING(8) "i");
-MODULE_PARM(full_duplex, "1-" __MODULE_STRING(8) "i");
+MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
+MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
+MODULE_PARM(multicast_filter_limit, "i");
MODULE_PARM(max_interrupt_work, "i");
+MODULE_PARM(debug, "i");
#endif
#endif
-static struct device *rtl8129_probe1(struct device *dev, int ioaddr, int irq,
- int chip_id, int options, int card_idx);
static int rtl8129_open(struct device *dev);
-static int read_eeprom(int ioaddr, int location);
-static int mdio_read(int ioaddr, int phy_id, int location);
+static int read_eeprom(long ioaddr, int location);
+static int mdio_read(struct device *dev, int phy_id, int location);
+static void mdio_write(struct device *dev, int phy_id, int location, int val);
static void rtl8129_timer(unsigned long data);
static void rtl8129_tx_timeout(struct device *dev);
static void rtl8129_init_ring(struct device *dev);
@@ -279,161 +312,138 @@
static int rtl8129_rx(struct device *dev);
static void rtl8129_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
static int rtl8129_close(struct device *dev);
+static int mii_ioctl(struct device *dev, struct ifreq *rq, int cmd);
static struct enet_statistics *rtl8129_get_stats(struct device *dev);
-#ifdef NEW_MULTICAST
+static inline u32 ether_crc(int length, unsigned char *data);
static void set_rx_mode(struct device *dev);
-#else
-static void set_rx_mode(struct device *dev, int num_addrs, void *addrs);
-#endif
-
-#ifdef MODULE
/* A list of all installed RTL8129 devices, for removing the driver module. */
static struct device *root_rtl8129_dev = NULL;
-#endif
+
+/* Ideally we would detect all network cards in slot order. That would
+ be best done a central PCI probe dispatch, which wouldn't work
+ well when dynamically adding drivers. So instead we detect just the
+ Rtl81*9 cards in slot order. */
int rtl8139_probe(struct device *dev)
{
int cards_found = 0;
- static int pci_index = 0; /* Static, for multiple probe calls. */
+ int pci_index = 0;
+ unsigned char pci_bus, pci_device_fn;
- /* Ideally we would detect all network cards in slot order. That would
- be best done a central PCI probe dispatch, which wouldn't work
- well with the current structure. So instead we detect just the
- Rtl81*9 cards in slot order. */
-
- if (pci_present()) {
- unsigned char pci_bus, pci_device_fn;
-
- for (;pci_index < 0xff; pci_index++) {
- unsigned char pci_latency;
-#if LINUX_VERSION_CODE >= 0x20155
- unsigned int pci_irq_line;
- struct pci_dev *pdev;
-#else
- unsigned char pci_irq_line;
-#endif
- unsigned short pci_command, new_command, vendor, device;
- unsigned int pci_ioaddr;
+ if ( ! pcibios_present())
+ return -ENODEV;
- if (pcibios_find_class (PCI_CLASS_NETWORK_ETHERNET << 8,
-#ifdef REVERSE_PROBE_ORDER
- 0xff - pci_index,
-#else
- pci_index,
-#endif
- &pci_bus, &pci_device_fn)
- != PCIBIOS_SUCCESSFUL)
+ for (;pci_index < 0xff; pci_index++) {
+ u16 vendor, device, pci_command, new_command;
+ int chip_idx, irq;
+ long ioaddr;
+
+ if (pcibios_find_class (PCI_CLASS_NETWORK_ETHERNET << 8, pci_index,
+ &pci_bus, &pci_device_fn)
+ != PCIBIOS_SUCCESSFUL)
+ break;
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_VENDOR_ID, &vendor);
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_DEVICE_ID, &device);
+
+ for (chip_idx = 0; pci_tbl[chip_idx].vendor_id; chip_idx++)
+ if (vendor == pci_tbl[chip_idx].vendor_id
+ && (device & pci_tbl[chip_idx].device_id_mask) ==
+ pci_tbl[chip_idx].device_id)
break;
- pcibios_read_config_word(pci_bus, pci_device_fn,
- PCI_VENDOR_ID, &vendor);
- if (vendor != PCI_VENDOR_ID_REALTEK)
- continue;
-
- pcibios_read_config_word(pci_bus, pci_device_fn,
- PCI_DEVICE_ID, &device);
-#if LINUX_VERSION_CODE >= 0x20155
- pdev = pci_find_slot(pci_bus, pci_device_fn);
- pci_irq_line = pdev->irq;
- pci_ioaddr = pdev->base_address[0];
+ if (pci_tbl[chip_idx].vendor_id == 0) /* Compiled out! */
+ continue;
+
+ {
+#if defined(PCI_SUPPORT_VER2)
+ struct pci_dev *pdev = pci_find_slot(pci_bus, pci_device_fn);
+ ioaddr = pdev->base_address[0] & ~3;
+ irq = pdev->irq;
#else
+ u32 pci_ioaddr;
+ u8 pci_irq_line;
pcibios_read_config_byte(pci_bus, pci_device_fn,
PCI_INTERRUPT_LINE, &pci_irq_line);
pcibios_read_config_dword(pci_bus, pci_device_fn,
PCI_BASE_ADDRESS_0, &pci_ioaddr);
+ ioaddr = pci_ioaddr & ~3;
+ irq = pci_irq_line;
#endif
- /* Remove I/O space marker in bit 0. */
- pci_ioaddr &= ~3;
-
- if (device != PCI_DEVICE_ID_REALTEK_8129
- && device != PCI_DEVICE_ID_REALTEK_8139) {
- printk(KERN_NOTICE"Unknown RealTek PCI ethernet chip type "
- "%4.4x detected: not configured.\n", device);
- continue;
- }
- if (check_region(pci_ioaddr, RTL8129_TOTAL_SIZE))
- continue;
+ }
- pcibios_read_config_word(pci_bus, pci_device_fn,
- PCI_COMMAND, &pci_command);
- new_command = pci_command | PCI_COMMAND_MASTER|PCI_COMMAND_IO;
- if (pci_command != new_command) {
- printk(KERN_INFO " The PCI BIOS has not enabled this"
- " device! Updating PCI config %4.4x->%4.4x.\n",
- pci_command, new_command);
- pcibios_write_config_word(pci_bus, pci_device_fn,
- PCI_COMMAND, new_command);
- }
+ if ((pci_tbl[chip_idx].flags & PCI_USES_IO) &&
+ check_region(ioaddr, pci_tbl[chip_idx].io_size))
+ continue;
+
+ /* Activate the card: fix for brain-damaged Win98 BIOSes. */
+ pcibios_read_config_word(pci_bus, pci_device_fn,
+ PCI_COMMAND, &pci_command);
+ new_command = pci_command | (pci_tbl[chip_idx].flags & 7);
+ if (pci_command != new_command) {
+ printk(KERN_INFO " The PCI BIOS has not enabled the"
+ " device at %d/%d! Updating PCI command %4.4x->%4.4x.\n",
+ pci_bus, pci_device_fn, pci_command, new_command);
+ pcibios_write_config_word(pci_bus, pci_device_fn,
+ PCI_COMMAND, new_command);
+ }
-#ifdef MODULE
- dev = rtl8129_probe1(dev, pci_ioaddr, pci_irq_line, device,
- options[cards_found], cards_found);
-#else
- dev = rtl8129_probe1(dev, pci_ioaddr, pci_irq_line, device,
- dev ? dev->mem_start : 0, -1);
-#endif
+ dev = pci_tbl[chip_idx].probe1(pci_bus, pci_device_fn, dev, ioaddr,
+ irq, chip_idx, cards_found);
- if (dev) {
- pcibios_read_config_byte(pci_bus, pci_device_fn,
- PCI_LATENCY_TIMER, &pci_latency);
- if (pci_latency < 32) {
- printk(KERN_NOTICE" PCI latency timer (CFLT) is "
- "unreasonably low at %d. Setting to 64 clocks.\n",
- pci_latency);
- pcibios_write_config_byte(pci_bus, pci_device_fn,
- PCI_LATENCY_TIMER, 64);
- } else if (rtl8129_debug > 1)
- printk(KERN_INFO" PCI latency timer (CFLT) is %#x.\n",
- pci_latency);
- dev = 0;
- cards_found++;
+ if (dev && (pci_tbl[chip_idx].flags & PCI_COMMAND_MASTER)) {
+ u8 pci_latency;
+ pcibios_read_config_byte(pci_bus, pci_device_fn,
+ PCI_LATENCY_TIMER, &pci_latency);
+ if (pci_latency < 32) {
+ printk(KERN_NOTICE " PCI latency timer (CFLT) is "
+ "unreasonably low at %d. Setting to 64 clocks.\n",
+ pci_latency);
+ pcibios_write_config_byte(pci_bus, pci_device_fn,
+ PCI_LATENCY_TIMER, 64);
}
}
+ dev = 0;
+ cards_found++;
}
-#if defined (MODULE)
- return cards_found;
-#else
return cards_found ? 0 : -ENODEV;
-#endif
}
-static struct device *rtl8129_probe1(struct device *dev, int ioaddr, int irq,
- int chip_id, int options, int card_idx)
+static struct device * rtl8129_probe1(int pci_bus, int pci_devfn,
+ struct device *dev, long ioaddr,
+ int irq, int chip_idx, int found_cnt)
{
static int did_version = 0; /* Already printed version info. */
struct rtl8129_private *tp;
- int i;
+ int i, option = found_cnt < MAX_UNITS ? options[found_cnt] : 0;
if (rtl8129_debug > 0 && did_version++ == 0)
printk(KERN_INFO "%s", version);
dev = init_etherdev(dev, 0);
- printk(KERN_INFO "%s: RealTek RTL%x at %#3x, IRQ %d, ",
- dev->name, chip_id, ioaddr, irq);
+ printk(KERN_INFO "%s: %s at %#lx, IRQ %d, ",
+ dev->name, pci_tbl[chip_idx].name, ioaddr, irq);
/* Bring the chip out of low-power mode. */
outb(0x00, ioaddr + Config1);
- /* Perhaps this should be read from the EEPROM? */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = inb(ioaddr + MAC0 + i);
+ if (read_eeprom(ioaddr, 0) != 0xffff)
+ for (i = 0; i < 3; i++)
+ ((u16 *)(dev->dev_addr))[i] = read_eeprom(ioaddr, i + 7);
+ else
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = inb(ioaddr + MAC0 + i);
for (i = 0; i < 5; i++)
printk("%2.2x:", dev->dev_addr[i]);
printk("%2.2x.\n", dev->dev_addr[i]);
- if (rtl8129_debug > 1) {
- printk(KERN_INFO "%s: EEPROM contents\n", dev->name);
- for (i = 0; i < 64; i++)
- printk(" %4.4x%s", read_eeprom(ioaddr, i),
- i%16 == 15 ? "\n"KERN_INFO : "");
- }
-
/* We do a request_region() to register /proc/ioports info. */
- request_region(ioaddr, RTL8129_TOTAL_SIZE, "RealTek RTL8129/39 Fast Ethernet");
+ request_region(ioaddr, pci_tbl[chip_idx].io_size, dev->name);
dev->base_addr = ioaddr;
dev->irq = irq;
@@ -443,22 +453,21 @@
memset(tp, 0, sizeof(*tp));
dev->priv = tp;
-#ifdef MODULE
tp->next_module = root_rtl8129_dev;
root_rtl8129_dev = dev;
-#endif
- tp->chip_id = chip_id;
+ tp->chip_id = chip_idx;
+ tp->pci_bus = pci_bus;
+ tp->pci_devfn = pci_devfn;
/* Find the connected MII xcvrs.
Doing this in open() would allow detecting external xcvrs later, but
takes too much time. */
- if (chip_id == 0x8129) {
+ if (rtl_cap_tbl[chip_idx] & HAS_MII_XCVR) {
int phy, phy_idx;
for (phy = 0, phy_idx = 0; phy < 32 && phy_idx < sizeof(tp->phys);
phy++) {
- int mii_status = mdio_read(ioaddr, phy, 1);
-
+ int mii_status = mdio_read(dev, phy, 1);
if (mii_status != 0xffff && mii_status != 0x0000) {
tp->phys[phy_idx++] = phy;
printk(KERN_INFO "%s: MII transceiver found at address %d.\n",
@@ -472,7 +481,7 @@
tp->phys[0] = -1;
}
} else {
- tp->phys[0] = -1;
+ tp->phys[0] = 32;
}
/* Put the chip into low-power mode. */
@@ -481,18 +490,21 @@
outb('H', ioaddr + HltClk); /* 'R' would leave the clock running. */
/* The lower four bits are the media type. */
- if (options > 0) {
- tp->full_duplex = (options & 16) ? 1 : 0;
- tp->default_port = options & 15;
+ if (option > 0) {
+ tp->full_duplex = (option & 0x200) ? 1 : 0;
+ tp->default_port = option & 15;
if (tp->default_port)
tp->medialock = 1;
}
-#ifdef MODULE
- if (card_idx >= 0) {
- if (full_duplex[card_idx] >= 0)
- tp->full_duplex = full_duplex[card_idx];
+
+ if (found_cnt < MAX_UNITS && full_duplex[found_cnt] > 0)
+ tp->full_duplex = full_duplex[found_cnt];
+
+ if (tp->full_duplex) {
+ printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name);
+ mdio_write(dev, tp->phys[0], 4, 0x141);
+ tp->duplex_lock = 1;
}
-#endif
/* The Rtl8129-specific entries in the device structure. */
dev->open = &rtl8129_open;
@@ -500,6 +512,7 @@
dev->stop = &rtl8129_close;
dev->get_stats = &rtl8129_get_stats;
dev->set_multicast_list = &set_rx_mode;
+ dev->do_ioctl = &mii_ioctl;
return dev;
}
@@ -516,24 +529,21 @@
#define EE_ENB (0x80 | EE_CS)
/* Delay between EEPROM clock transitions.
- The 1.2 code is a "nasty" timing loop, but PC compatible machines are
- *supposed* to delay an ISA-compatible period for the SLOW_DOWN_IO macro. */
-#ifdef _LINUX_DELAY_H
-#define eeprom_delay(nanosec) udelay((nanosec + 999)/1000)
-#else
-#define eeprom_delay(nanosec) do { int _i = 3; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
-#endif
+ No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+ */
+
+#define eeprom_delay() inl(ee_addr)
/* The EEPROM commands include the alway-set leading bit. */
#define EE_WRITE_CMD (5 << 6)
#define EE_READ_CMD (6 << 6)
#define EE_ERASE_CMD (7 << 6)
-static int read_eeprom(int ioaddr, int location)
+static int read_eeprom(long ioaddr, int location)
{
int i;
- unsigned short retval = 0;
- short ee_addr = ioaddr + Cfg9346;
+ unsigned retval = 0;
+ long ee_addr = ioaddr + Cfg9346;
int read_cmd = location | EE_READ_CMD;
outb(EE_ENB & ~EE_CS, ee_addr);
@@ -541,22 +551,21 @@
/* Shift the read command bits out. */
for (i = 10; i >= 0; i--) {
- short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
outb(EE_ENB | dataval, ee_addr);
- eeprom_delay(100);
+ eeprom_delay();
outb(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
- eeprom_delay(150);
- outb(EE_ENB | dataval, ee_addr); /* Finish EEPROM a clock tick. */
- eeprom_delay(250);
+ eeprom_delay();
}
outb(EE_ENB, ee_addr);
+ eeprom_delay();
for (i = 16; i > 0; i--) {
outb(EE_ENB | EE_SHIFT_CLK, ee_addr);
- eeprom_delay(100);
+ eeprom_delay();
retval = (retval << 1) | ((inb(ee_addr) & EE_DATA_READ) ? 1 : 0);
outb(EE_ENB, ee_addr);
- eeprom_delay(100);
+ eeprom_delay();
}
/* Terminate the EEPROM access. */
@@ -566,43 +575,50 @@
/* MII serial management: mostly bogus for now. */
/* Read and write the MII management registers using software-generated
- serial MDIO protocol. The maxium data clock rate is 2.5 Mhz. */
+ serial MDIO protocol.
+ The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues. */
#define MDIO_DIR 0x80
#define MDIO_DATA_OUT 0x04
#define MDIO_DATA_IN 0x02
#define MDIO_CLK 0x01
-#ifdef _LINUX_DELAY_H
-#define mdio_delay() udelay(1) /* Really 400ns. */
-#else
-#define mdio_delay() __SLOW_DOWN_IO;
-#endif
+#define MDIO_WRITE0 (MDIO_DIR)
+#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
+
+#define mdio_delay() inb(mdio_addr)
+
+static char mii_2_8139_map[8] = {MII_BMCR, MII_BMSR, 0, 0, NWayAdvert,
+ NWayLPAR, NWayExpansion, 0 };
/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync(int ioaddr)
+static void mdio_sync(long mdio_addr)
{
int i;
- int mdio_addr = ioaddr + MII_SMI;
for (i = 32; i >= 0; i--) {
- outb(MDIO_DIR | MDIO_DATA_OUT, mdio_addr);
+ outb(MDIO_WRITE1, mdio_addr);
mdio_delay();
- outb(MDIO_DIR | MDIO_DATA_OUT | MDIO_CLK, mdio_addr);
+ outb(MDIO_WRITE1 | MDIO_CLK, mdio_addr);
mdio_delay();
}
return;
}
-static int mdio_read(int ioaddr, int phy_id, int location)
+static int mdio_read(struct device *dev, int phy_id, int location)
{
- int i;
- int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ long mdio_addr = dev->base_addr + MII_SMI;
+ int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
int retval = 0;
- int mdio_addr = ioaddr + MII_SMI;
+ int i;
- mdio_sync(ioaddr);
+ if ((phy_id & 0x1f) == 0) { /* Really a 8139. Use internal registers. */
+ return location < 8 && mii_2_8139_map[location] ?
+ inw(dev->base_addr + mii_2_8139_map[location]) : 0;
+ }
+ mdio_sync(mdio_addr);
/* Shift the read command bits out. */
for (i = 15; i >= 0; i--) {
- int dataval =
- (read_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
outb(MDIO_DIR | dataval, mdio_addr);
mdio_delay();
@@ -620,31 +636,52 @@
}
return (retval>>1) & 0xffff;
}
+
+static void mdio_write(struct device *dev, int phy_id, int location, int value)
+{
+ long mdio_addr = dev->base_addr + MII_SMI;
+ int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location<<18) | value;
+ int i;
+
+ if (phy_id == 32) { /* Really a 8139. Use internal registers. */
+ if (location < 8 && mii_2_8139_map[location])
+ outw(value, dev->base_addr + mii_2_8139_map[location]);
+ return;
+ }
+ mdio_sync(mdio_addr);
+
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
+ outb(dataval, mdio_addr);
+ mdio_delay();
+ outb(dataval | MDIO_CLK, mdio_addr);
+ mdio_delay();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ outb(0, mdio_addr);
+ mdio_delay();
+ outb(MDIO_CLK, mdio_addr);
+ mdio_delay();
+ }
+ return;
+}
+
static int
rtl8129_open(struct device *dev)
{
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
int i;
- int full_duplex = 0;
/* Soft reset the chip. */
outb(CmdReset, ioaddr + ChipCmd);
-#ifdef SA_SHIRQ
- if (request_irq(dev->irq, &rtl8129_interrupt, SA_SHIRQ,
- "RealTek RTL8129/39 Fast Ethernet", dev)) {
+ if (request_irq(dev->irq, &rtl8129_interrupt, SA_SHIRQ, dev->name, dev)) {
return -EAGAIN;
}
-#else
- if (irq2dev_map[dev->irq] != NULL
- || (irq2dev_map[dev->irq] = dev) == NULL
- || dev->irq == 0
- || request_irq(dev->irq, &rtl8129_interrupt, 0, "RTL8129")) {
- return -EAGAIN;
- }
-#endif
MOD_INC_USE_COUNT;
@@ -660,20 +697,10 @@
}
rtl8129_init_ring(dev);
-#ifndef final_version
- /* Used to monitor rx ring overflow. */
- memset(tp->rx_ring + RX_BUF_LEN, 0xcc, 16);
-#endif
-
/* Check that the chip has finished the reset. */
for (i = 1000; i > 0; i--)
if ((inb(ioaddr + ChipCmd) & CmdReset) == 0)
break;
-#ifndef final_version
- if (rtl8129_debug > 2)
- printk(KERN_DEBUG"%s: reset finished with status %2.2x after %d loops.\n",
- dev->name, inb(ioaddr + ChipCmd), 1000-i);
-#endif
for (i = 0; i < 6; i++)
outb(dev->dev_addr[i], ioaddr + MAC0 + i);
@@ -683,29 +710,26 @@
outl((RX_FIFO_THRESH << 13) | (RX_BUF_LEN_IDX << 11) | (RX_DMA_BURST<<8),
ioaddr + RxConfig);
outl((TX_DMA_BURST<<8)|0x03000000, ioaddr + TxConfig);
+ tp->tx_flag = (TX_FIFO_THRESH<<11) & 0x003f0000;
- full_duplex = tp->full_duplex;
- if (tp->phys[0] >= 0 || tp->chip_id == 0x8139) {
- u16 mii_reg5;
- if (tp->chip_id == 0x8139)
- mii_reg5 = inw(ioaddr + NWayLPAR);
- else
- mii_reg5 = mdio_read(ioaddr, tp->phys[0], 5);
+ tp->full_duplex = tp->duplex_lock;
+ if (tp->phys[0] >= 0 || (rtl_cap_tbl[tp->chip_id] & HAS_MII_XCVR)) {
+ u16 mii_reg5 = mdio_read(dev, tp->phys[0], 5);
if (mii_reg5 == 0xffff)
; /* Not there */
else if ((mii_reg5 & 0x0100) == 0x0100
|| (mii_reg5 & 0x00C0) == 0x0040)
- full_duplex = 1;
+ tp->full_duplex = 1;
if (rtl8129_debug > 1)
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 ",
- full_duplex ? "full" : "half", mii_reg5);
+ tp->full_duplex ? "full" : "half", mii_reg5);
}
outb(0xC0, ioaddr + Cfg9346);
- outb(full_duplex ? 0x60 : 0x20, ioaddr + Config1);
+ outb(tp->full_duplex ? 0x60 : 0x20, ioaddr + Config1);
outb(0x00, ioaddr + Cfg9346);
outl(virt_to_bus(tp->rx_ring), ioaddr + RxBuf);
@@ -715,13 +739,6 @@
set_rx_mode(dev);
outb(CmdRxEnb | CmdTxEnb, ioaddr + ChipCmd);
-#ifndef final_version
- if (rtl8129_debug > 1)
- printk(KERN_DEBUG"%s: In rtl8129_open() Tx/Rx Config %8.8x/%8.8x"
- " Chip Config %2.2x/%2.2x.\n",
- dev->name, inl(ioaddr + TxConfig), inl(ioaddr + RxConfig),
- inb(ioaddr + Config0), inb(ioaddr + Config1));
-#endif
dev->tbusy = 0;
dev->interrupt = 0;
@@ -732,10 +749,10 @@
| TxErr | TxOK | RxErr | RxOK, ioaddr + IntrMask);
if (rtl8129_debug > 1)
- printk(KERN_DEBUG"%s: rtl8129_open() ioaddr %4.4x IRQ %d"
+ printk(KERN_DEBUG"%s: rtl8129_open() ioaddr %#lx IRQ %d"
" GP Pins %2.2x %s-duplex.\n",
dev->name, ioaddr, dev->irq, inb(ioaddr + GPPinData),
- full_duplex ? "full" : "half");
+ tp->full_duplex ? "full" : "half");
/* Set the timer to switch to check for link beat and perhaps switch
to an alternate media type. */
@@ -752,26 +769,26 @@
{
struct device *dev = (struct device *)data;
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
int next_tick = 0;
+ int mii_reg5 = mdio_read(dev, tp->phys[0], 5);
- if (tp->chip_id == 0x8139) {
- u16 mii_reg5 = inw(ioaddr + NWayLPAR);
- if ((mii_reg5 & 0x0100) == 0x0100
- || (mii_reg5 & 0x00C0) == 0x0040)
- if ( ! tp->full_duplex) {
- tp->full_duplex = 1;
- if (rtl8129_debug > 0)
- printk(KERN_INFO "%s: Switching to full-duplex based on "
- "link partner ability of %4.4x.\n",
- dev->name, mii_reg5);
- outb(0xC0, ioaddr + Cfg9346);
- outb(tp->full_duplex ? 0x60 : 0x20, ioaddr + Config1);
- outb(0x00, ioaddr + Cfg9346);
- }
+ if (! tp->duplex_lock && mii_reg5 != 0xffff) {
+ int duplex = (mii_reg5&0x0100) || (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);
+ outb(0xC0, ioaddr + Cfg9346);
+ outb(tp->full_duplex ? 0x60 : 0x20, ioaddr + Config1);
+ outb(0x00, ioaddr + Cfg9346);
+ }
+ next_tick = 60*HZ;
}
+
if (rtl8129_debug > 2) {
- if (tp->chip_id == 0x8129)
+ if (rtl_cap_tbl[tp->chip_id] & HAS_MII_XCVR)
printk(KERN_DEBUG"%s: Media selection tick, GP pins %2.2x.\n",
dev->name, inb(ioaddr + GPPinData));
else
@@ -794,33 +811,80 @@
static void rtl8129_tx_timeout(struct device *dev)
{
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
- int i;
+ long ioaddr = dev->base_addr;
+ int mii_reg, i;
if (rtl8129_debug > 0)
- printk(KERN_WARNING "%s: Transmit timeout, status %2.2x %4.4x.\n",
- dev->name, inb(ioaddr + ChipCmd), inw(ioaddr + IntrStatus));
+ printk(KERN_WARNING "%s: Transmit timeout, status %2.2x %4.4x "
+ "media %2.2x.\n",
+ dev->name, inb(ioaddr + ChipCmd), inw(ioaddr + IntrStatus),
+ inb(ioaddr + GPPinData));
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ outw(0x0000, ioaddr + IntrMask);
+ /* Emit info to figure out what went wrong. */
+ printk("%s: Tx queue start entry %d dirty entry %d.\n",
+ dev->name, tp->cur_tx, tp->dirty_tx);
for (i = 0; i < NUM_TX_DESC; i++)
printk(KERN_DEBUG"%s: Tx descriptor %d is %8.8x.%s\n",
- dev->name, i, inl(ioaddr + TxStat0 + i*4),
+ dev->name, i, inl(ioaddr + TxStatus0 + i*4),
i == tp->dirty_tx % NUM_TX_DESC ? " (queue head)" : "");
- if (tp->chip_id == 0x8129) {
- int mii_reg;
- printk(KERN_DEBUG"%s: MII #%d registers are:", dev->name, tp->phys[0]);
- for (mii_reg = 0; mii_reg < 8; mii_reg++)
- printk(" %4.4x", mdio_read(ioaddr, tp->phys[0], mii_reg));
- printk(".\n");
- } else {
- printk(KERN_DEBUG"%s: MII status register is %4.4x.\n",
- dev->name, inw(ioaddr + BMSR));
- }
- /* Restart the chip Tx process. */
+ printk(KERN_DEBUG"%s: MII #%d registers are:", dev->name, tp->phys[0]);
+ for (mii_reg = 0; mii_reg < 8; mii_reg++)
+ printk(" %4.4x", mdio_read(dev, tp->phys[0], mii_reg));
+ printk(".\n");
+
+ /* Soft reset the chip. */
+ outb(CmdReset, ioaddr + ChipCmd);
+ /* Check that the chip has finished the reset. */
+ for (i = 1000; i > 0; i--)
+ if ((inb(ioaddr + ChipCmd) & CmdReset) == 0)
+ break;
+ for (i = 0; i < 6; i++)
+ outb(dev->dev_addr[i], ioaddr + MAC0 + i);
+
+ outb(0x00, ioaddr + Cfg9346);
+ tp->cur_rx = 0;
+ /* Must enable Tx/Rx before setting transfer thresholds! */
outb(CmdRxEnb | CmdTxEnb, ioaddr + ChipCmd);
- /* Continue from any transmit abort. */
- outl((TX_DMA_BURST<<8) || 0x03000001, ioaddr + TxConfig);
+ outl((RX_FIFO_THRESH << 13) | (RX_BUF_LEN_IDX << 11) | (RX_DMA_BURST<<8),
+ ioaddr + RxConfig);
+ outl((TX_DMA_BURST<<8), ioaddr + TxConfig);
+ set_rx_mode(dev);
+ { /* Save the unsent Tx packets. */
+ struct sk_buff *saved_skb[NUM_TX_DESC], *skb;
+ int j;
+ for (j = 0; tp->cur_tx - tp->dirty_tx > 0 ; j++, tp->dirty_tx++)
+ saved_skb[j] = tp->tx_skbuff[tp->dirty_tx % NUM_TX_DESC];
+ tp->dirty_tx = tp->cur_tx = 0;
+
+ for (i = 0; i < j; i++) {
+ skb = tp->tx_skbuff[i] = saved_skb[i];
+ if ((long)skb->data & 3) { /* Must use alignment buffer. */
+ memcpy(tp->tx_buf[i], skb->data, skb->len);
+ outl(virt_to_bus(tp->tx_buf[i]), ioaddr + TxAddr0 + i*4);
+ } else
+ outl(virt_to_bus(skb->data), ioaddr + TxAddr0 + i*4);
+ /* Note: the chip doesn't have auto-pad! */
+ outl(tp->tx_flag | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN),
+ ioaddr + TxStatus0 + i*4);
+ }
+ tp->cur_tx = i;
+ while (i < NUM_TX_DESC)
+ tp->tx_skbuff[i] = 0;
+ if (tp->cur_tx - tp->dirty_tx < NUM_TX_DESC) {/* Typical path */
+ dev->tbusy = 0;
+ tp->tx_full = 0;
+ } else {
+ tp->tx_full = 1;
+ }
+ }
dev->trans_start = jiffies;
tp->stats.tx_errors++;
+ /* Enable all known interrupts by setting the interrupt mask. */
+ outw(PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver
+ | TxErr | TxOK | RxErr | RxOK, ioaddr + IntrMask);
return;
}
@@ -833,8 +897,8 @@
int i;
tp->tx_full = 0;
- tp->cur_rx = tp->cur_tx = 0;
- tp->dirty_rx = tp->dirty_tx = 0;
+ tp->cur_rx = 0;
+ tp->dirty_tx = tp->cur_tx = 0;
for (i = 0; i < NUM_TX_DESC; i++) {
tp->tx_skbuff[i] = 0;
@@ -846,20 +910,9 @@
rtl8129_start_xmit(struct sk_buff *skb, struct device *dev)
{
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
int entry;
-#ifndef final_version
- if (skb == NULL || skb->len <= 0) {
- printk(KERN_ERR"%s: Obsolete driver Tx request made: skbuff==NULL.\n",
- dev->name);
-#if 0
- dev_tint(dev);
-#endif
- return 0;
- }
-#endif
-
/* Block a timer-based transmit from overlapping. This could better be
done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */
if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
@@ -879,12 +932,11 @@
} else
outl(virt_to_bus(skb->data), ioaddr + TxAddr0 + entry*4);
/* Note: the chip doesn't have auto-pad! */
- outl(((TX_FIFO_THRESH<<11) & 0x003f0000) |
- (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN),
- ioaddr + TxStat0 + entry*4);
+ outl(tp->tx_flag | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN),
+ ioaddr + TxStatus0 + entry*4);
if (++tp->cur_tx - tp->dirty_tx < NUM_TX_DESC) {/* Typical path */
- dev->tbusy = 0;
+ clear_bit(0, (void*)&dev->tbusy);
} else {
tp->tx_full = 1;
}
@@ -892,36 +944,36 @@
dev->trans_start = jiffies;
if (rtl8129_debug > 4)
printk(KERN_DEBUG"%s: Queued Tx packet at %p size %d to slot %d.\n",
- dev->name, skb->data, skb->len, entry);
+ dev->name, skb->data, (int)skb->len, entry);
return 0;
}
/* The interrupt handler does all of the Rx thread work and cleans up
after the Tx thread. */
-static void rtl8129_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs)
+static void rtl8129_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
{
-#ifdef SA_SHIRQ
struct device *dev = (struct device *)dev_instance;
-#else
- struct device *dev = (struct device *)(irq2dev_map[irq]);
-#endif
- struct rtl8129_private *tp;
- int ioaddr, boguscnt = max_interrupt_work;
+ struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
+ int boguscnt = max_interrupt_work;
int status;
+ long ioaddr = dev->base_addr;
- if (dev == NULL) {
- printk (KERN_ERR"rtl8139_interrupt(): IRQ %d for unknown device.\n",
- irq);
+#if defined(__i386__)
+ /* A lock to prevent simultaneous entry bug on Intel SMP machines. */
+ if (test_and_set_bit(0, (void*)&dev->interrupt)) {
+ printk(KERN_ERR"%s: SMP simultaneous entry of an interrupt handler.\n",
+ dev->name);
+ dev->interrupt = 0; /* Avoid halting machine. */
return;
}
-
- ioaddr = dev->base_addr;
- tp = (struct rtl8129_private *)dev->priv;
- if (test_and_set_bit(0, (void*)&dev->interrupt)) {
+#else
+ if (dev->interrupt) {
printk(KERN_ERR "%s: Re-entering the interrupt handler.\n", dev->name);
return;
}
+ dev->interrupt = 1;
+#endif
do {
status = inw(ioaddr + IntrStatus);
@@ -944,9 +996,9 @@
for (dirty_tx = tp->dirty_tx; dirty_tx < tp->cur_tx; dirty_tx++) {
int entry = dirty_tx % NUM_TX_DESC;
- int txstatus = inl(ioaddr + TxStat0 + entry*4);
+ int txstatus = inl(ioaddr + TxStatus0 + entry*4);
- if ( ! (txstatus & TxHostOwns))
+ if ( ! (txstatus & (TxStatOK | TxUnderrun | TxAborted)))
break; /* It still hasn't been Txed */
/* Note: TxCarrierLost is always asserted at 100mbps. */
@@ -973,15 +1025,20 @@
/* No count for tp->stats.tx_deferred */
#endif
if (txstatus & TxUnderrun) {
- /* Todo: increase the Tx FIFO threshold. */
+ /* Add 64 to the Tx FIFO threshold. */
+ if (tp->tx_flag < 0x00300000)
+ tp->tx_flag += 0x00020000;
tp->stats.tx_fifo_errors++;
}
tp->stats.collisions += (txstatus >> 24) & 15;
+#if LINUX_VERSION_CODE > 0x20119
+ tp->stats.tx_bytes += txstatus & 0x7ff;
+#endif
tp->stats.tx_packets++;
}
/* Free the original skb. */
- dev_kfree_skb(tp->tx_skbuff[entry]);
+ dev_free_skb(tp->tx_skbuff[entry]);
tp->tx_skbuff[entry] = 0;
}
@@ -993,8 +1050,7 @@
}
#endif
- if (tp->tx_full && dev->tbusy
- && dirty_tx > tp->cur_tx - NUM_TX_DESC) {
+ if (tp->tx_full && dirty_tx > tp->cur_tx - NUM_TX_DESC) {
/* The ring is no longer full, clear tbusy. */
tp->tx_full = 0;
dev->tbusy = 0;
@@ -1007,17 +1063,29 @@
/* Check uncommon events with one test. */
if (status & (PCIErr|PCSTimeout |RxUnderrun|RxOverflow|RxFIFOOver
|TxErr|RxErr)) {
+ if (rtl8129_debug > 2)
+ printk(KERN_NOTICE"%s: Abnormal interrupt, status %8.8x.\n",
+ dev->name, status);
-#ifndef final_version
- if (rtl8129_debug > 0)
- printk(KERN_DEBUG"%s: Unusual error, status %4.4x.\n",
- dev->name, status);
-#endif
-
+ if (status == 0xffffffff)
+ break;
/* Update the error count. */
tp->stats.rx_missed_errors += inl(ioaddr + RxMissed);
outl(0, ioaddr + RxMissed);
+ if ((status & RxUnderrun) &&
+ (rtl_cap_tbl[tp->chip_id] & HAS_LNK_CHNG)) {
+ /* Really link-change on new chips. */
+ int lpar = inw(ioaddr + NWayLPAR);
+ int duplex = (lpar&0x0100)||(lpar & 0x01C0) == 0x0040;
+ if (tp->full_duplex != duplex) {
+ tp->full_duplex = duplex;
+ outb(0xC0, ioaddr + Cfg9346);
+ outb(tp->full_duplex ? 0x60 : 0x20, ioaddr + Config1);
+ outb(0x00, ioaddr + Cfg9346);
+ }
+ status &= ~RxUnderrun;
+ }
if (status & (RxUnderrun | RxOverflow | RxErr | RxFIFOOver))
tp->stats.rx_errors++;
@@ -1028,7 +1096,14 @@
tp->cur_rx = inw(ioaddr + RxBufAddr) % RX_BUF_LEN;
outw(tp->cur_rx - 16, ioaddr + RxBufPtr);
}
- /* Error sources cleared above. */
+ if (status & PCIErr) {
+ u32 pci_cmd_status;
+ pcibios_read_config_dword(tp->pci_bus, tp->pci_devfn,
+ PCI_COMMAND, &pci_cmd_status);
+
+ printk(KERN_ERR "%s: PCI Bus error %4.4x.\n",
+ dev->name, pci_cmd_status);
+ }
}
if (--boguscnt < 0) {
printk(KERN_WARNING"%s: Too much work at interrupt, "
@@ -1044,29 +1119,20 @@
printk(KERN_DEBUG"%s: exiting interrupt, intr_status=%#4.4x.\n",
dev->name, inl(ioaddr + IntrStatus));
-#ifndef final_version
- /* Code that should never be run! Perhaps remove after testing.. */
- {
- static int stopit = 10;
- if (dev->start == 0 && --stopit < 0) {
- printk(KERN_ERR"%s: Emergency stop, looping startup interrupt.\n",
- dev->name);
- FREE_IRQ(irq, dev);
- }
- }
-#endif
-
+#if defined(__i386__)
+ clear_bit(0, (void*)&dev->interrupt);
+#else
dev->interrupt = 0;
+#endif
return;
}
-/* Todo: The data sheet doesn't describe the Rx ring at all, so I'm winging
- it here until I have a chip to play with. 8/30/97 */
-static int
-rtl8129_rx(struct device *dev)
+/* The data sheet doesn't describe the Rx ring at all, so I'm guessing at the
+ field alignments and semantics. */
+static int rtl8129_rx(struct device *dev)
{
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
unsigned char *rx_ring = tp->rx_ring;
u16 cur_rx = tp->cur_rx;
@@ -1077,9 +1143,9 @@
inw(ioaddr + RxBufPtr), inb(ioaddr + ChipCmd));
while ((inb(ioaddr + ChipCmd) & 1) == 0) {
- u16 ring_offset = cur_rx % RX_BUF_LEN;
+ int ring_offset = cur_rx % RX_BUF_LEN;
u32 rx_status = *(u32*)(rx_ring + ring_offset);
- u16 rx_size = rx_status >> 16;
+ int rx_size = rx_status >> 16;
if (rtl8129_debug > 4) {
int i;
@@ -1105,12 +1171,18 @@
tp->stats.rx_frame_errors++;
if (rx_status & (RxRunt|RxTooLong)) tp->stats.rx_length_errors++;
if (rx_status & RxCRCErr) tp->stats.rx_crc_errors++;
+ /* Reset the receiver, based on RealTek recommendation. (Bug?) */
+ tp->cur_rx = 0;
+ outb(CmdTxEnb, ioaddr + ChipCmd);
+ outb(CmdRxEnb | CmdTxEnb, ioaddr + ChipCmd);
+ outl((RX_FIFO_THRESH << 13) | (RX_BUF_LEN_IDX << 11) |
+ (RX_DMA_BURST<<8), ioaddr + RxConfig);
} else {
/* Malloc up new buffer, compatible with net-2e. */
/* Omit the four octet CRC from the length. */
struct sk_buff *skb;
- skb = DEV_ALLOC_SKB(rx_size + 2);
+ skb = dev_alloc_skb(rx_size + 2);
if (skb == NULL) {
printk(KERN_WARNING"%s: Memory squeeze, deferring packet.\n",
dev->name);
@@ -1129,26 +1201,32 @@
rx_size-semi_count);
if (rtl8129_debug > 4) {
int i;
- printk(KERN_DEBUG"%s: Frame wrap @%d", dev->name, semi_count);
+ printk(KERN_DEBUG"%s: Frame wrap @%d",
+ dev->name, semi_count);
for (i = 0; i < 16; i++)
printk(" %2.2x", rx_ring[i]);
printk(".\n");
memset(rx_ring, 0xcc, 16);
}
- } else
+ } else {
+#if 1 /* USE_IP_COPYSUM */
+ eth_copy_and_sum(skb, &rx_ring[ring_offset + 4],
+ rx_size, 0);
+ skb_put(skb, rx_size);
+#else
memcpy(skb_put(skb, rx_size), &rx_ring[ring_offset + 4],
rx_size);
-#if LINUX_VERSION_CODE >= 0x10300
- skb->protocol = eth_type_trans(skb, dev);
-#else
- skb->len = rx_size;
#endif
+ }
+ skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
+#if LINUX_VERSION_CODE > 0x20119
+ tp->stats.rx_bytes += rx_size;
+#endif
tp->stats.rx_packets++;
}
- cur_rx += rx_size + 4;
- cur_rx = (cur_rx + 3) & ~3;
+ cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
outw(cur_rx - 16, ioaddr + RxBufPtr);
}
if (rtl8129_debug > 4)
@@ -1163,7 +1241,7 @@
static int
rtl8129_close(struct device *dev)
{
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
int i;
@@ -1186,29 +1264,11 @@
del_timer(&tp->timer);
-#ifdef SA_SHIRQ
free_irq(dev->irq, dev);
-#else
- free_irq(dev->irq);
- irq2dev_map[dev->irq] = 0;
-#endif
-
-#ifndef final_version
- /* Used to monitor rx ring overflow. */
- for (i = 0; i < 16; i++)
- if (tp->rx_ring[RX_BUF_LEN+i] != 0xcc) {
- printk(KERN_WARNING"%s: Rx ring overflowed! Values are ",
- dev->name);
- for (i = 0; i < 16; i++)
- printk(" %2.2x", tp->rx_ring[RX_BUF_LEN + i]);
- printk(".\n");
- break;
- }
-#endif
for (i = 0; i < NUM_TX_DESC; i++) {
if (tp->tx_skbuff[i])
- dev_kfree_skb(tp->tx_skbuff[i]);
+ dev_free_skb(tp->tx_skbuff[i]);
tp->tx_skbuff[i] = 0;
}
kfree(tp->rx_ring);
@@ -1224,11 +1284,33 @@
return 0;
}
+static int mii_ioctl(struct device *dev, struct ifreq *rq, int cmd)
+{
+ struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
+ u16 *data = (u16 *)&rq->ifr_data;
+
+ switch(cmd) {
+ case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
+ data[0] = tp->phys[0] & 0x3f;
+ /* Fall Through */
+ case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
+ data[3] = mdio_read(dev, data[0] & 0x1f, data[1] & 0x1f);
+ return 0;
+ case SIOCDEVPRIVATE+2: /* Write the specified MII register */
+ if (!suser())
+ return -EPERM;
+ mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
static struct enet_statistics *
rtl8129_get_stats(struct device *dev)
{
struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- int ioaddr = dev->base_addr;
+ long ioaddr = dev->base_addr;
if (dev->start) {
tp->stats.rx_missed_errors += inl(ioaddr + RxMissed);
@@ -1239,94 +1321,69 @@
}
/* Set or clear the multicast filter for this adaptor.
- Note that we only use exclusion around actually queueing the
- new frame, not around filling tp->setup_frame. This is non-deterministic
- when re-entered but still correct. */
-
-/* The little-endian AUTODIN II ethernet CRC calculation.
- N.B. Do not use for bulk data, use a table-based routine instead.
- This is common code and should be moved to net/core/crc.c */
-static unsigned const ethernet_polynomial_le = 0xedb88320U;
-static inline unsigned ether_crc_le(int length, unsigned char *data)
+ This routine is not state sensitive and need not be SMP locked. */
+
+static unsigned const ethernet_polynomial = 0x04c11db7U;
+static inline u32 ether_crc(int length, unsigned char *data)
{
- unsigned int crc = 0xffffffff; /* Initial value. */
- while(--length >= 0) {
+ int crc = -1;
+
+ while(--length >= 0) {
unsigned char current_octet = *data++;
int bit;
- for (bit = 8; --bit >= 0; current_octet >>= 1) {
- if ((crc ^ current_octet) & 1) {
- crc >>= 1;
- crc ^= ethernet_polynomial_le;
- } else
- crc >>= 1;
- }
- }
- return crc;
+ for (bit = 0; bit < 8; bit++, current_octet >>= 1)
+ crc = (crc << 1) ^
+ ((crc < 0) ^ (current_octet & 1) ? ethernet_polynomial : 0);
+ }
+ return crc;
}
+/* Bits in RxConfig. */
+enum rx_mode_bits {
+ AcceptErr=0x20, AcceptRunt=0x10, AcceptBroadcast=0x08,
+ AcceptMulticast=0x04, AcceptMyPhys=0x02, AcceptAllPhys=0x01,
+};
-static void
-#ifdef NEW_MULTICAST
-set_rx_mode(struct device *dev)
-#else
-static void set_rx_mode(struct device *dev, int num_addrs, void *addrs);
-#endif
+static void set_rx_mode(struct device *dev)
{
- int ioaddr = dev->base_addr;
- struct rtl8129_private *tp = (struct rtl8129_private *)dev->priv;
- unsigned char mc_filter[8]; /* Multicast hash filter */
- int i;
+ long ioaddr = dev->base_addr;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int i, rx_mode;
+
+ if (rtl8129_debug > 3)
+ printk(KERN_DEBUG"%s: set_rx_mode(%4.4x) done -- Rx config %8.8x.\n",
+ dev->name, dev->flags, inl(ioaddr + RxConfig));
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
+ /* Note: do not reorder, GCC is clever about common statements. */
+ if (dev->flags & IFF_PROMISC) {
/* Unconditionally log net taps. */
printk(KERN_NOTICE"%s: Promiscuous mode enabled.\n", dev->name);
- memset(mc_filter, 0xff, sizeof(mc_filter));
- outb(0x0F, ioaddr + RxConfig);
- } else if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ rx_mode = AcceptBroadcast|AcceptMulticast|AcceptMyPhys|AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((dev->mc_count > multicast_filter_limit)
+ || (dev->flags & IFF_ALLMULTI)) {
/* Too many to filter perfectly -- accept all multicasts. */
- memset(mc_filter, 0xff, sizeof(mc_filter));
- outb(0x0E, ioaddr + RxConfig);
- } else if (dev->mc_count == 0) {
- outb(0x0A, ioaddr + RxConfig);
- return;
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
} else {
struct dev_mc_list *mclist;
-
- memset(mc_filter, 0, sizeof(mc_filter));
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
i++, mclist = mclist->next)
- set_bit(ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x3f,
- mc_filter);
- }
- /* ToDo: perhaps we need to stop the Tx and Rx process here? */
- if (memcmp(mc_filter, tp->mc_filter, sizeof(mc_filter))) {
- for (i = 0; i < 2; i++)
- outl(((u32 *)mc_filter)[i], ioaddr + MAR0 + i*4);
- memcpy(tp->mc_filter, mc_filter, sizeof(mc_filter));
+ set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26, mc_filter);
}
- if (rtl8129_debug > 3)
- printk(KERN_DEBUG"%s: set_rx_mode(%4.4x) done -- Rx config %8.8x.\n",
- dev->name, dev->flags, inl(ioaddr + RxConfig));
+ /* We can safely update without stopping the chip. */
+ outb(rx_mode, ioaddr + RxConfig);
+ outl(mc_filter[0], ioaddr + MAR0 + 0);
+ outl(mc_filter[1], ioaddr + MAR0 + 4);
return;
}
#ifdef MODULE
-
-/* An additional parameter that may be passed in... */
-static int debug = -1;
-
-int
-init_module(void)
+int init_module(void)
{
- int cards_found;
-
- if (debug >= 0)
- rtl8129_debug = debug;
-
- root_rtl8129_dev = NULL;
- cards_found = rtl8139_probe(0);
-
- return cards_found ? 0 : -ENODEV;
+ return rtl8139_probe(0);
}
void
@@ -1336,9 +1393,13 @@
/* No need to check MOD_IN_USE, as sys_delete_module() checks. */
while (root_rtl8129_dev) {
- next_dev = ((struct rtl8129_private *)root_rtl8129_dev->priv)->next_module;
+ struct rtl8129_private *tp =
+ (struct rtl8129_private *)root_rtl8129_dev->priv;
+ next_dev = tp->next_module;
unregister_netdev(root_rtl8129_dev);
- release_region(root_rtl8129_dev->base_addr, RTL8129_TOTAL_SIZE);
+ release_region(root_rtl8129_dev->base_addr,
+ pci_tbl[tp->chip_id].io_size);
+ kfree(tp);
kfree(root_rtl8129_dev);
root_rtl8129_dev = next_dev;
}
@@ -1348,7 +1409,8 @@
/*
* Local variables:
- * compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c rtl8139.c"
+ * compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c rtl8139.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
+ * SMP-compile-command: "gcc -D__SMP__ -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -c rtl8139.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 4
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