Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 493 insertions, 0 deletions

diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
new file mode 100644
index 00000000000..20346d847d9
--- /dev/null
+++ b/drivers/net/tulip/tulip.h
@@ -0,0 +1,493 @@
+/*
+	drivers/net/tulip/tulip.h
+
+	Copyright 2000,2001  The Linux Kernel Team
+	Written/copyright 1994-2001 by Donald Becker.
+
+	This software may be used and distributed according to the terms
+	of the GNU General Public License, incorporated herein by reference.
+
+	Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+	for more information on this driver, or visit the project
+	Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#ifndef __NET_TULIP_H__
+#define __NET_TULIP_H__
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+
+
+/* undefine, or define to various debugging levels (>4 == obscene levels) */
+#define TULIP_DEBUG 1
+
+/* undefine USE_IO_OPS for MMIO, define for PIO */
+#ifdef CONFIG_TULIP_MMIO
+# undef USE_IO_OPS
+#else
+# define USE_IO_OPS 1
+#endif
+
+
+
+struct tulip_chip_table {
+	char *chip_name;
+	int io_size;
+	int valid_intrs;	/* CSR7 interrupt enable settings */
+	int flags;
+	void (*media_timer) (unsigned long data);
+};
+
+
+enum tbl_flag {
+	HAS_MII			= 0x0001,
+	HAS_MEDIA_TABLE		= 0x0002,
+	CSR12_IN_SROM		= 0x0004,
+	ALWAYS_CHECK_MII	= 0x0008,
+	HAS_ACPI		= 0x0010,
+	MC_HASH_ONLY		= 0x0020, /* Hash-only multicast filter. */
+	HAS_PNICNWAY		= 0x0080,
+	HAS_NWAY		= 0x0040, /* Uses internal NWay xcvr. */
+	HAS_INTR_MITIGATION	= 0x0100,
+	IS_ASIX			= 0x0200,
+	HAS_8023X		= 0x0400,
+	COMET_MAC_ADDR		= 0x0800,
+	HAS_PCI_MWI		= 0x1000,
+	HAS_PHY_IRQ		= 0x2000,
+	HAS_SWAPPED_SEEPROM	= 0x4000,
+	NEEDS_FAKE_MEDIA_TABLE	= 0x8000,
+};
+
+
+/* chip types.  careful!  order is VERY IMPORTANT here, as these
+ * are used throughout the driver as indices into arrays */
+/* Note 21142 == 21143. */
+enum chips {
+	DC21040 = 0,
+	DC21041 = 1,
+	DC21140 = 2,
+	DC21142 = 3, DC21143 = 3,
+	LC82C168,
+	MX98713,
+	MX98715,
+	MX98725,
+	AX88140,
+	PNIC2,
+	COMET,
+	COMPEX9881,
+	I21145,
+	DM910X,
+	CONEXANT,
+	ULI526X
+};
+
+
+enum MediaIs {
+	MediaIsFD = 1,
+	MediaAlwaysFD = 2,
+	MediaIsMII = 4,
+	MediaIsFx = 8,
+	MediaIs100 = 16
+};
+
+
+/* Offsets to the Command and Status Registers, "CSRs".  All accesses
+   must be longword instructions and quadword aligned. */
+enum tulip_offsets {
+	CSR0 = 0,
+	CSR1 = 0x08,
+	CSR2 = 0x10,
+	CSR3 = 0x18,
+	CSR4 = 0x20,
+	CSR5 = 0x28,
+	CSR6 = 0x30,
+	CSR7 = 0x38,
+	CSR8 = 0x40,
+	CSR9 = 0x48,
+	CSR10 = 0x50,
+	CSR11 = 0x58,
+	CSR12 = 0x60,
+	CSR13 = 0x68,
+	CSR14 = 0x70,
+	CSR15 = 0x78,
+};
+
+/* register offset and bits for CFDD PCI config reg */
+enum pci_cfg_driver_reg {
+	CFDD = 0x40,
+	CFDD_Sleep = (1 << 31),
+	CFDD_Snooze = (1 << 30),
+};
+
+#define RxPollInt (RxIntr|RxNoBuf|RxDied|RxJabber)
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+	TimerInt = 0x800,
+	SytemError = 0x2000,
+	TPLnkFail = 0x1000,
+	TPLnkPass = 0x10,
+	NormalIntr = 0x10000,
+	AbnormalIntr = 0x8000,
+	RxJabber = 0x200,
+	RxDied = 0x100,
+	RxNoBuf = 0x80,
+	RxIntr = 0x40,
+	TxFIFOUnderflow = 0x20,
+	TxJabber = 0x08,
+	TxNoBuf = 0x04,
+	TxDied = 0x02,
+	TxIntr = 0x01,
+};
+
+/* bit mask for CSR5 TX/RX process state */
+#define CSR5_TS	0x00700000
+#define CSR5_RS	0x000e0000
+
+enum tulip_mode_bits {
+	TxThreshold		= (1 << 22),
+	FullDuplex		= (1 << 9),
+	TxOn			= 0x2000,
+	AcceptBroadcast		= 0x0100,
+	AcceptAllMulticast	= 0x0080,
+	AcceptAllPhys		= 0x0040,
+	AcceptRunt		= 0x0008,
+	RxOn			= 0x0002,
+	RxTx			= (TxOn | RxOn),
+};
+
+
+enum tulip_busconfig_bits {
+	MWI			= (1 << 24),
+	MRL			= (1 << 23),
+	MRM			= (1 << 21),
+	CALShift		= 14,
+	BurstLenShift		= 8,
+};
+
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct tulip_rx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1;
+	u32 buffer2;
+};
+
+
+struct tulip_tx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1;
+	u32 buffer2;		/* We use only buffer 1.  */
+};
+
+
+enum desc_status_bits {
+	DescOwned = 0x80000000,
+	RxDescFatalErr = 0x8000,
+	RxWholePkt = 0x0300,
+};
+
+
+enum t21143_csr6_bits {
+	csr6_sc = (1<<31),
+	csr6_ra = (1<<30),
+	csr6_ign_dest_msb = (1<<26),
+	csr6_mbo = (1<<25),
+	csr6_scr = (1<<24),  /* scramble mode flag: can't be set */
+	csr6_pcs = (1<<23),  /* Enables PCS functions (symbol mode requires csr6_ps be set) default is set */
+	csr6_ttm = (1<<22),  /* Transmit Threshold Mode, set for 10baseT, 0 for 100BaseTX */
+	csr6_sf = (1<<21),   /* Store and forward. If set ignores TR bits */
+	csr6_hbd = (1<<19),  /* Heart beat disable. Disables SQE function in 10baseT */
+	csr6_ps = (1<<18),   /* Port Select. 0 (defualt) = 10baseT, 1 = 100baseTX: can't be set */
+	csr6_ca = (1<<17),   /* Collision Offset Enable. If set uses special algorithm in low collision situations */
+	csr6_trh = (1<<15),  /* Transmit Threshold high bit */
+	csr6_trl = (1<<14),  /* Transmit Threshold low bit */
+
+	/***************************************************************
+	 * This table shows transmit threshold values based on media   *
+	 * and these two registers (from PNIC1 & 2 docs) Note: this is *
+	 * all meaningless if sf is set.                               *
+	 ***************************************************************/
+
+	/***********************************
+	 * (trh,trl) * 100BaseTX * 10BaseT *
+	 ***********************************
+	 *   (0,0)   *     128   *    72   *
+	 *   (0,1)   *     256   *    96   *
+	 *   (1,0)   *     512   *   128   *
+	 *   (1,1)   *    1024   *   160   *
+	 ***********************************/
+
+	csr6_fc = (1<<12),   /* Forces a collision in next transmission (for testing in loopback mode) */
+	csr6_om_int_loop = (1<<10), /* internal (FIFO) loopback flag */
+	csr6_om_ext_loop = (1<<11), /* external (PMD) loopback flag */
+	/* set both and you get (PHY) loopback */
+	csr6_fd = (1<<9),    /* Full duplex mode, disables hearbeat, no loopback */
+	csr6_pm = (1<<7),    /* Pass All Multicast */
+	csr6_pr = (1<<6),    /* Promiscuous mode */
+	csr6_sb = (1<<5),    /* Start(1)/Stop(0) backoff counter */
+	csr6_if = (1<<4),    /* Inverse Filtering, rejects only addresses in address table: can't be set */
+	csr6_pb = (1<<3),    /* Pass Bad Frames, (1) causes even bad frames to be passed on */
+	csr6_ho = (1<<2),    /* Hash-only filtering mode: can't be set */
+	csr6_hp = (1<<0),    /* Hash/Perfect Receive Filtering Mode: can't be set */
+
+	csr6_mask_capture = (csr6_sc | csr6_ca),
+	csr6_mask_defstate = (csr6_mask_capture | csr6_mbo),
+	csr6_mask_hdcap = (csr6_mask_defstate | csr6_hbd | csr6_ps),
+	csr6_mask_hdcaptt = (csr6_mask_hdcap  | csr6_trh | csr6_trl),
+	csr6_mask_fullcap = (csr6_mask_hdcaptt | csr6_fd),
+	csr6_mask_fullpromisc = (csr6_pr | csr6_pm),
+	csr6_mask_filters = (csr6_hp | csr6_ho | csr6_if),
+	csr6_mask_100bt = (csr6_scr | csr6_pcs | csr6_hbd),
+};
+
+
+/* Keep the ring sizes a power of two for efficiency.
+   Making the Tx ring too large decreases the effectiveness of channel
+   bonding and packet priority.
+   There are no ill effects from too-large receive rings. */
+
+#define TX_RING_SIZE	32
+#define RX_RING_SIZE	128 
+#define MEDIA_MASK     31
+
+#define PKT_BUF_SZ		1536	/* Size of each temporary Rx buffer. */
+
+#define TULIP_MIN_CACHE_LINE	8	/* in units of 32-bit words */
+
+#if defined(__sparc__) || defined(__hppa__)
+/* The UltraSparc PCI controllers will disconnect at every 64-byte
+ * crossing anyways so it makes no sense to tell Tulip to burst
+ * any more than that.
+ */
+#define TULIP_MAX_CACHE_LINE	16	/* in units of 32-bit words */
+#else
+#define TULIP_MAX_CACHE_LINE	32	/* in units of 32-bit words */
+#endif
+
+
+/* Ring-wrap flag in length field, use for last ring entry.
+	0x01000000 means chain on buffer2 address,
+	0x02000000 means use the ring start address in CSR2/3.
+   Note: Some work-alike chips do not function correctly in chained mode.
+   The ASIX chip works only in chained mode.
+   Thus we indicates ring mode, but always write the 'next' field for
+   chained mode as well.
+*/
+#define DESC_RING_WRAP 0x02000000
+
+
+#define EEPROM_SIZE 512 	/* 2 << EEPROM_ADDRLEN */
+
+
+#define RUN_AT(x) (jiffies + (x))
+
+#if defined(__i386__)			/* AKA get_unaligned() */
+#define get_u16(ptr) (*(u16 *)(ptr))
+#else
+#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
+#endif
+
+struct medialeaf {
+	u8 type;
+	u8 media;
+	unsigned char *leafdata;
+};
+
+
+struct mediatable {
+	u16 defaultmedia;
+	u8 leafcount;
+	u8 csr12dir;		/* General purpose pin directions. */
+	unsigned has_mii:1;
+	unsigned has_nonmii:1;
+	unsigned has_reset:6;
+	u32 csr15dir;
+	u32 csr15val;		/* 21143 NWay setting. */
+	struct medialeaf mleaf[0];
+};
+
+
+struct mediainfo {
+	struct mediainfo *next;
+	int info_type;
+	int index;
+	unsigned char *info;
+};
+
+struct ring_info {
+	struct sk_buff	*skb;
+	dma_addr_t	mapping;
+};
+
+
+struct tulip_private {
+	const char *product_name;
+	struct net_device *next_module;
+	struct tulip_rx_desc *rx_ring;
+	struct tulip_tx_desc *tx_ring;
+	dma_addr_t rx_ring_dma;
+	dma_addr_t tx_ring_dma;
+	/* The saved address of a sent-in-place packet/buffer, for skfree(). */
+	struct ring_info tx_buffers[TX_RING_SIZE];
+	/* The addresses of receive-in-place skbuffs. */
+	struct ring_info rx_buffers[RX_RING_SIZE];
+	u16 setup_frame[96];	/* Pseudo-Tx frame to init address table. */
+	int chip_id;
+	int revision;
+	int flags;
+	struct net_device_stats stats;
+	struct timer_list timer;	/* Media selection timer. */
+	struct timer_list oom_timer;    /* Out of memory timer. */
+	u32 mc_filter[2];
+	spinlock_t lock;
+	spinlock_t mii_lock;
+	unsigned int cur_rx, cur_tx;	/* The next free ring entry */
+	unsigned int dirty_rx, dirty_tx;	/* The ring entries to be free()ed. */
+
+#ifdef 	CONFIG_TULIP_NAPI_HW_MITIGATION
+        int mit_on;
+#endif
+	unsigned int full_duplex:1;	/* Full-duplex operation requested. */
+	unsigned int full_duplex_lock:1;
+	unsigned int fake_addr:1;	/* Multiport board faked address. */
+	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. */
+	unsigned int mediasense:1;	/* Media sensing in progress. */
+	unsigned int nway:1, nwayset:1;		/* 21143 internal NWay. */
+	unsigned int csr0;	/* CSR0 setting. */
+	unsigned int csr6;	/* Current CSR6 control settings. */
+	unsigned char eeprom[EEPROM_SIZE];	/* Serial EEPROM contents. */
+	void (*link_change) (struct net_device * dev, int csr5);
+	u16 sym_advertise, mii_advertise; /* NWay capabilities advertised.  */
+	u16 lpar;		/* 21143 Link partner ability. */
+	u16 advertising[4];
+	signed char phys[4], mii_cnt;	/* MII device addresses. */
+	struct mediatable *mtable;
+	int cur_index;		/* Current media index. */
+	int saved_if_port;
+	struct pci_dev *pdev;
+	int ttimer;
+	int susp_rx;
+	unsigned long nir;
+	void __iomem *base_addr;
+	int csr12_shadow;
+	int pad0;		/* Used for 8-byte alignment */
+};
+
+
+struct eeprom_fixup {
+	char *name;
+	unsigned char addr0;
+	unsigned char addr1;
+	unsigned char addr2;
+	u16 newtable[32];	/* Max length below. */
+};
+
+
+/* 21142.c */
+extern u16 t21142_csr14[];
+void t21142_timer(unsigned long data);
+void t21142_start_nway(struct net_device *dev);
+void t21142_lnk_change(struct net_device *dev, int csr5);
+
+
+/* PNIC2.c */
+void pnic2_lnk_change(struct net_device *dev, int csr5);
+void pnic2_timer(unsigned long data);
+void pnic2_start_nway(struct net_device *dev);
+void pnic2_lnk_change(struct net_device *dev, int csr5);
+
+/* eeprom.c */
+void tulip_parse_eeprom(struct net_device *dev);
+int tulip_read_eeprom(struct net_device *dev, int location, int addr_len);
+
+/* interrupt.c */
+extern unsigned int tulip_max_interrupt_work;
+extern int tulip_rx_copybreak;
+irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+int tulip_refill_rx(struct net_device *dev);
+#ifdef CONFIG_TULIP_NAPI
+int tulip_poll(struct net_device *dev, int *budget);
+#endif
+
+
+/* media.c */
+int tulip_mdio_read(struct net_device *dev, int phy_id, int location);
+void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int value);
+void tulip_select_media(struct net_device *dev, int startup);
+int tulip_check_duplex(struct net_device *dev);
+void tulip_find_mii (struct net_device *dev, int board_idx);
+
+/* pnic.c */
+void pnic_do_nway(struct net_device *dev);
+void pnic_lnk_change(struct net_device *dev, int csr5);
+void pnic_timer(unsigned long data);
+
+/* timer.c */
+void tulip_timer(unsigned long data);
+void mxic_timer(unsigned long data);
+void comet_timer(unsigned long data);
+
+/* tulip_core.c */
+extern int tulip_debug;
+extern const char * const medianame[];
+extern const char tulip_media_cap[];
+extern struct tulip_chip_table tulip_tbl[];
+void oom_timer(unsigned long data);
+extern u8 t21040_csr13[];
+
+static inline void tulip_start_rxtx(struct tulip_private *tp)
+{
+	void __iomem *ioaddr = tp->base_addr;
+	iowrite32(tp->csr6 | RxTx, ioaddr + CSR6);
+	barrier();
+	(void) ioread32(ioaddr + CSR6); /* mmio sync */
+}
+
+static inline void tulip_stop_rxtx(struct tulip_private *tp)
+{
+	void __iomem *ioaddr = tp->base_addr;
+	u32 csr6 = ioread32(ioaddr + CSR6);
+
+	if (csr6 & RxTx) {
+		unsigned i=1300/10;
+		iowrite32(csr6 & ~RxTx, ioaddr + CSR6);
+		barrier();
+		/* wait until in-flight frame completes.
+		 * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin)
+		 * Typically expect this loop to end in < 50 us on 100BT.
+		 */
+		while (--i && (ioread32(ioaddr + CSR5) & (CSR5_TS|CSR5_RS)))
+			udelay(10);
+
+		if (!i)
+			printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed\n",
+					pci_name(tp->pdev));
+	}
+}
+
+static inline void tulip_restart_rxtx(struct tulip_private *tp)
+{
+	if(!(tp->chip_id == ULI526X && 
+		(tp->revision == 0x40 || tp->revision == 0x50))) {
+		tulip_stop_rxtx(tp);
+		udelay(5);
+	}
+	tulip_start_rxtx(tp);
+}
+
+#endif /* __NET_TULIP_H__ */