diff options
Diffstat (limited to 'drivers/net/tulip/tulip.h')
| -rw-r--r-- | drivers/net/tulip/tulip.h | 575 |
1 files changed, 0 insertions, 575 deletions
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h deleted file mode 100644 index ed66a16711d..00000000000 --- a/drivers/net/tulip/tulip.h +++ /dev/null @@ -1,575 +0,0 @@ -/* - 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. - - Please submit bugs to http://bugzilla.kernel.org/ . -*/ - -#ifndef __NET_TULIP_H__ -#define __NET_TULIP_H__ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/spinlock.h> -#include <linux/netdevice.h> -#include <linux/ethtool.h> -#include <linux/timer.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/unaligned.h> - - - -/* undefine, or define to various debugging levels (>4 == obscene levels) */ -#define TULIP_DEBUG 1 - -#ifdef CONFIG_TULIP_MMIO -#define TULIP_BAR 1 /* CBMA */ -#else -#define TULIP_BAR 0 /* CBIO */ -#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); - work_func_t media_task; -}; - - -enum tbl_flag { - HAS_MII = 0x00001, - HAS_MEDIA_TABLE = 0x00002, - CSR12_IN_SROM = 0x00004, - ALWAYS_CHECK_MII = 0x00008, - HAS_ACPI = 0x00010, - MC_HASH_ONLY = 0x00020, /* Hash-only multicast filter. */ - HAS_PNICNWAY = 0x00080, - HAS_NWAY = 0x00040, /* Uses internal NWay xcvr. */ - HAS_INTR_MITIGATION = 0x00100, - IS_ASIX = 0x00200, - HAS_8023X = 0x00400, - COMET_MAC_ADDR = 0x00800, - HAS_PCI_MWI = 0x01000, - HAS_PHY_IRQ = 0x02000, - HAS_SWAPPED_SEEPROM = 0x04000, - NEEDS_FAKE_MEDIA_TABLE = 0x08000, - COMET_PM = 0x10000, -}; - - -/* 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, -}; - - -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, - CSR18 = 0x88, - CSR19 = 0x8c, - CSR20 = 0x90, - CSR27 = 0xAC, - CSR28 = 0xB0, -}; - -/* 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, - SystemError = 0x2000, - TPLnkFail = 0x1000, - TPLnkPass = 0x10, - NormalIntr = 0x10000, - AbnormalIntr = 0x8000, - RxJabber = 0x200, - RxDied = 0x100, - RxNoBuf = 0x80, - RxIntr = 0x40, - TxFIFOUnderflow = 0x20, - RxErrIntr = 0x10, - 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 { - __le32 status; - __le32 length; - __le32 buffer1; - __le32 buffer2; -}; - - -struct tulip_tx_desc { - __le32 status; - __le32 length; - __le32 buffer1; - __le32 buffer2; /* We use only buffer 1. */ -}; - - -enum desc_status_bits { - DescOwned = 0x80000000, - DescWholePkt = 0x60000000, - DescEndPkt = 0x40000000, - DescStartPkt = 0x20000000, - DescEndRing = 0x02000000, - DescUseLink = 0x01000000, - - /* - * Error summary flag is logical or of 'CRC Error', 'Collision Seen', - * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated - * within tulip chip. - */ - RxDescErrorSummary = 0x8000, - RxDescCRCError = 0x0002, - RxDescCollisionSeen = 0x0040, - - /* - * 'Frame Too Long' flag is set if packet length including CRC exceeds - * 1518. However, a full sized VLAN tagged frame is 1522 bytes - * including CRC. - * - * The tulip chip does not block oversized frames, and if this flag is - * set on a receive descriptor it does not indicate the frame has been - * truncated. The receive descriptor also includes the actual length. - * Therefore we can safety ignore this flag and check the length - * ourselves. - */ - RxDescFrameTooLong = 0x0080, - RxDescRunt = 0x0800, - RxDescDescErr = 0x4000, - RxWholePkt = 0x00000300, - /* - * Top three bits of 14 bit frame length (status bits 27-29) should - * never be set as that would make frame over 2047 bytes. The Receive - * Watchdog flag (bit 4) may indicate the length is over 2048 and the - * length field is invalid. - */ - RxLengthOver2047 = 0x38000010 -}; - - -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), -}; - -enum tulip_comet_csr13_bits { -/* The LINKOFFE and LINKONE work in conjunction with LSCE, i.e. they - * determine which link status transition wakes up if LSCE is - * enabled */ - comet_csr13_linkoffe = (1 << 17), - comet_csr13_linkone = (1 << 16), - comet_csr13_wfre = (1 << 10), - comet_csr13_mpre = (1 << 9), - comet_csr13_lsce = (1 << 8), - comet_csr13_wfr = (1 << 2), - comet_csr13_mpr = (1 << 1), - comet_csr13_lsc = (1 << 0), -}; - -enum tulip_comet_csr18_bits { - comet_csr18_pmes_sticky = (1 << 24), - comet_csr18_pm_mode = (1 << 19), - comet_csr18_apm_mode = (1 << 18), - comet_csr18_d3a = (1 << 7) -}; - -enum tulip_comet_csr20_bits { - comet_csr20_pmes = (1 << 15), -}; - -/* 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 - -/* The receiver on the DC21143 rev 65 can fail to close the last - * receive descriptor in certain circumstances (see errata) when - * using MWI. This can only occur if the receive buffer ends on - * a cache line boundary, so the "+ 4" below ensures it doesn't. - */ -#define PKT_BUF_SZ (1536 + 4) /* 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)) - -#define get_u16(ptr) get_unaligned_le16((ptr)) - -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 napi_struct napi; - 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 timeout_recovery:1; - 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); - struct ethtool_wolinfo wolinfo; /* WOL settings */ - 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 work_struct media_work; - struct net_device *dev; -}; - - -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_media_task(struct work_struct *work); -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); -int tulip_refill_rx(struct net_device *dev); -#ifdef CONFIG_TULIP_NAPI -int tulip_poll(struct napi_struct *napi, 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_media_task(struct work_struct *work); -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" - " (CSR5 0x%x CSR6 0x%x)\n", - pci_name(tp->pdev), - ioread32(ioaddr + CSR5), - ioread32(ioaddr + CSR6)); - } -} - -static inline void tulip_restart_rxtx(struct tulip_private *tp) -{ - tulip_stop_rxtx(tp); - udelay(5); - tulip_start_rxtx(tp); -} - -static inline void tulip_tx_timeout_complete(struct tulip_private *tp, void __iomem *ioaddr) -{ - /* Stop and restart the chip's Tx processes. */ - tulip_restart_rxtx(tp); - /* Trigger an immediate transmit demand. */ - iowrite32(0, ioaddr + CSR1); - - tp->dev->stats.tx_errors++; -} - -#endif /* __NET_TULIP_H__ */ |