#ifndef _RRUNNER_H_
#define _RRUNNER_H_
#include <linux/interrupt.h>
#if ((BITS_PER_LONG != 32) && (BITS_PER_LONG != 64))
#error "BITS_PER_LONG not defined or not valid"
#endif
struct rr_regs {
u32 pad0[16];
u32 HostCtrl;
u32 LocalCtrl;
u32 Pc;
u32 BrkPt;
/* Timer increments every 0.97 micro-seconds (unsigned int) */
u32 Timer_Hi;
u32 Timer;
u32 TimerRef;
u32 PciState;
u32 Event;
u32 MbEvent;
u32 WinBase;
u32 WinData;
u32 RX_state;
u32 TX_state;
u32 Overhead;
u32 ExtIo;
u32 DmaWriteHostHi;
u32 DmaWriteHostLo;
u32 pad1[2];
u32 DmaReadHostHi;
u32 DmaReadHostLo;
u32 pad2;
u32 DmaReadLen;
u32 DmaWriteState;
u32 DmaWriteLcl;
u32 DmaWriteIPchecksum;
u32 DmaWriteLen;
u32 DmaReadState;
u32 DmaReadLcl;
u32 DmaReadIPchecksum;
u32 pad3;
u32 RxBase;
u32 RxPrd;
u32 RxCon;
u32 pad4;
u32 TxBase;
u32 TxPrd;
u32 TxCon;
u32 pad5;
u32 RxIndPro;
u32 RxIndCon;
u32 RxIndRef;
u32 pad6;
u32 TxIndPro;
u32 TxIndCon;
u32 TxIndRef;
u32 pad7[17];
u32 DrCmndPro;
u32 DrCmndCon;
u32 DrCmndRef;
u32 pad8;
u32 DwCmndPro;
u32 DwCmndCon;
u32 DwCmndRef;
u32 AssistState;
u32 DrDataPro;
u32 DrDataCon;
u32 DrDataRef;
u32 pad9;
u32 DwDataPro;
u32 DwDataCon;
u32 DwDataRef;
u32 pad10[33];
u32 EvtCon;
u32 pad11[5];
u32 TxPi;
u32 IpRxPi;
u32 pad11a[8];
u32 CmdRing[16];
/* The ULA is in two registers the high order two bytes of the first
* word contain the RunCode features.
* ula0 res res byte0 byte1
* ula1 byte2 byte3 byte4 byte5
*/
u32 Ula0;
u32 Ula1;
u32 RxRingHi;
u32 RxRingLo;
u32 InfoPtrHi;
u32 InfoPtrLo;
u32 Mode;
u32 ConRetry;
u32 ConRetryTmr;
u32 ConTmout;
u32 CtatTmr;
u32 MaxRxRng;
u32 IntrTmr;
u32 TxDataMvTimeout;
u32 RxDataMvTimeout;
u32 EvtPrd;
u32 TraceIdx;
u32 Fail1;
u32 Fail2;
u32 DrvPrm;
u32 FilterLA;
u32 FwRev;
u32 FwRes1;
u32 FwRes2;
u32 FwRes3;
u32 WriteDmaThresh;
u32 ReadDmaThresh;
u32 pad12[325];
u32 Window[512];
};
/*
* Host control register bits.
*/
#define RR_INT 0x01
#define RR_CLEAR_INT 0x02
#define NO_SWAP 0x04000004
#define NO_SWAP1 0x00000004
#define PCI_RESET_NIC 0x08
#define HALT_NIC 0x10
#define SSTEP_NIC 0x20
#define MEM_READ_MULTI 0x40
#define NIC_HALTED 0x100
#define HALT_INST 0x200
#define PARITY_ERR 0x400
#define INVALID_INST_B 0x800
#define RR_REV_2 0x20000000
#define RR_REV_MASK 0xf0000000
/*
* Local control register bits.
*/
#define INTA_STATE 0x01
#define CLEAR_INTA 0x02
#define FAST_EEPROM_ACCESS 0x08
#define ENABLE_EXTRA_SRAM 0x100
#define ENABLE_EXTRA_DESC 0x200
#define ENABLE_PARITY 0x400
#define FORCE_DMA_PARITY_ERROR 0x800
#define ENABLE_EEPROM_WRITE 0x1000
#define ENABLE_DATA_CACHE 0x2000
#define SRAM_LO_PARITY_ERR 0x4000
#define SRAM_HI_PARITY_ERR 0x8000
/*
* PCI state bits.
*/
#define FORCE_PCI_RESET 0x01
#define PROVIDE_LENGTH 0x02
#define MASK_DMA_READ_MAX 0x1C
#define RBURST_DISABLE 0x00
#define RBURST_4 0x04
#define RBURST_16 0x08
#define RBURST_32 0x0C
#define RBURST_64 0x10
#define RBURST_128 0x14
#define RBURST_256 0x18
#define RBURST_1024 0x1C
#define MASK_DMA_WRITE_MAX 0xE0
#define WBURST_DISABLE 0x00
#define WBURST_4 0x20
#define WBURST_16 0x40
#define WBURST_32 0x60
#define WBURST_64 0x80
#define WBURST_128 0xa0
#define WBURST_256 0xc0
#define WBURST_1024 0xe0
#define MASK_MIN_DMA 0xFF00
#define FIFO_RETRY_ENABLE 0x10000
/*
* Event register
*/
#define DMA_WRITE_DONE 0x10000
#define DMA_READ_DONE 0x20000
#define DMA_WRITE_ERR 0x40000
#define DMA_READ_ERR 0x80000
/*
* Receive state
*
* RoadRunner HIPPI Receive State Register controls and monitors the
* HIPPI receive interface in the NIC. Look at err bits when a HIPPI
* receive Error Event occurs.
*/
#define ENABLE_NEW_CON 0x01
#define RESET_RECV 0x02
#define RECV_ALL 0x00
#define RECV_1K 0x20
#define RECV_2K 0x40
#define RECV_4K 0x60
#define RECV_8K 0x80
#define RECV_16K 0xa0
#define RECV_32K 0xc0
#define RECV_64K 0xe0
/*
* Transmit status.
*/
#define ENA_XMIT 0x01
#define PERM_CON 0x02
/*
* DMA write state
*/
#define RESET_DMA 0x01
#define NO_SWAP_DMA 0x02
#define DMA_ACTIVE 0x04
#define THRESH_MASK 0x1F
#define DMA_ERROR_MASK 0xff000000
/*
* Gooddies stored in the ULA registers.
*/
#define TRACE_ON_WHAT_BIT 0x00020000 /* Traces on */
#define ONEM_BUF_WHAT_BIT 0x00040000 /* 1Meg vs 256K */
#define CHAR_API_WHAT_BIT 0x00080000 /* Char API vs network only */
#define CMD_EVT_WHAT_BIT 0x00200000 /* Command event */
#define LONG_TX_WHAT_BIT 0x00400000
#define LONG_RX_WHAT_BIT 0x00800000
#define WHAT_BIT_MASK 0xFFFD0000 /* Feature bit mask */
/*
* Mode status
*/
#define EVENT_OVFL 0x80000000
#define FATAL_ERR 0x40000000
#define LOOP_BACK 0x01
#define MODE_PH 0x02
#define MODE_FP 0x00
#define PTR64BIT 0x04
#define PTR32BIT 0x00
#define PTR_WD_SWAP 0x08
#define PTR_WD_NOSWAP 0x00
#define POST_WARN_EVENT 0x10
#define ERR_TERM 0x20
#define DIRECT_CONN 0x40
#define NO_NIC_WATCHDOG 0x80
#define SWAP_DATA 0x100
#define SWAP_CONTROL 0x200
#define NIC_HALT_ON_ERR 0x400
#define NIC_NO_RESTART 0x800
#define HALF_DUP_TX 0x1000
#define HALF_DUP_RX 0x2000
/*
* Error codes
*/
/* Host Error Codes - values of fail1 */
#define ERR_UNKNOWN_MBOX 0x1001
#define ERR_UNKNOWN_CMD 0x1002
#define ERR_MAX_RING 0x1003
#define ERR_RING_CLOSED 0x1004
#define ERR_RING_OPEN 0x1005
/* Firmware internal errors */
#define ERR_EVENT_RING_FULL 0x01
#define ERR_DW_PEND_CMND_FULL 0x02
#define ERR_DR_PEND_CMND_FULL 0x03
#define ERR_DW_PEND_DATA_FULL 0x04
#define ERR_DR_PEND_DATA_FULL 0x05
#define ERR_ILLEGAL_JUMP 0x06
#define ERR_UNIMPLEMENTED 0x07
#define ERR_TX_INFO_FULL 0x08
#define ERR_RX_INFO_FULL 0x09
#define ERR_ILLEGAL_MODE 0x0A
#define ERR_MAIN_TIMEOUT 0x0B
#define ERR_EVENT_BITS 0x0C
#define ERR_UNPEND_FULL 0x0D
#define ERR_TIMER_QUEUE_FULL 0x0E
#define ERR_TIMER_QUEUE_EMPTY 0x0F
#define ERR_TIMER_NO_FREE 0x10
#define ERR_INTR_START 0x11
#define ERR_BAD_STARTUP 0x12
#define ERR_NO_PKT_END 0x13
#define ERR_HALTED_ON_ERR 0x14
/* Hardware NIC Errors */
#define ERR_WRITE_DMA 0x0101
#define ERR_READ_DMA 0x0102
#define ERR_EXT_SERIAL 0x0103
#define ERR_TX_INT_PARITY 0x0104
/*
* Event definitions
*/
#define EVT_RING_ENTRIES 64
#define EVT_RING_SIZE (EVT_RING_ENTRIES * sizeof(struct event))
struct event {
#ifdef __LITTLE_ENDIAN
u16 index;
u8 ring;
u8 code;
#else
u8 code;
u8 ring;
u16 index;
#endif
u32 timestamp;
};
/*
* General Events
*/
#define E_NIC_UP 0x01
#define E_WATCHDOG 0x02
#define E_STAT_UPD 0x04
#define E_INVAL_CMD 0x05
#define E_SET_CMD_CONS 0x06
#define E_LINK_ON 0x07
#define E_LINK_OFF 0x08
#define E_INTERN_ERR 0x09
#define E_HOST_ERR 0x0A
#define E_STATS_UPDATE 0x0B
#define E_REJECTING 0x0C
/*
* Send Events
*/
#define E_CON_REJ 0x13
#define E_CON_TMOUT 0x14
#define E_CON_NC_TMOUT 0x15 /* I , Connection No Campon Timeout */
#define E_DISC_ERR 0x16
#define E_INT_PRTY 0x17
#define E_TX_IDLE 0x18
#define E_TX_LINK_DROP 0x19
#define E_TX_INV_RNG 0x1A
#define E_TX_INV_BUF 0x1B
#define E_TX_INV_DSC 0x1C
/*
* Destination Events
*/
/*
* General Receive events
*/
#define E_VAL_RNG 0x20
#define E_RX_RNG_ENER 0x21
#define E_INV_RNG 0x22
#define E_RX_RNG_SPC 0x23
#define E_RX_RNG_OUT 0x24
#define E_PKT_DISCARD 0x25
#define E_INFO_EVT 0x27
/*
* Data corrupted events
*/
#define E_RX_PAR_ERR 0x2B
#define E_RX_LLRC_ERR 0x2C
#define E_IP_CKSM_ERR 0x2D
#define E_DTA_CKSM_ERR 0x2E
#define E_SHT_BST 0x2F
/*
* Data lost events
*/
#define E_LST_LNK_ERR 0x30
#define E_FLG_SYN_ERR 0x31
#define E_FRM_ERR 0x32
#define E_RX_IDLE 0x33
#define E_PKT_LN_ERR 0x34
#define E_STATE_ERR 0x35
#define E_UNEXP_DATA 0x3C
/*
* Fatal events
*/
#define E_RX_INV_BUF 0x36
#define E_RX_INV_DSC 0x37
#define E_RNG_BLK 0x38
/*
* Warning events
*/
#define E_RX_TO 0x39
#define E_BFR_SPC 0x3A
#define E_INV_ULP 0x3B
#define E_NOT_IMPLEMENTED 0x40
/*
* Commands
*/
#define CMD_RING_ENTRIES 16
struct cmd {
#ifdef __LITTLE_ENDIAN
u16 index;
u8 ring;
u8 code;
#else
u8 code;
u8 ring;
u16 index;
#endif
};
#define C_START_FW 0x01
#define C_UPD_STAT 0x02
#define C_WATCHDOG 0x05
#define C_DEL_RNG 0x09
#define C_NEW_RNG 0x0A
#define C_CONN 0x0D
/*
* Mode bits
*/
#define PACKET_BAD 0x01 /* Packet had link-layer error */
#define INTERRUPT 0x02
#define TX_IP_CKSUM 0x04
#define PACKET_END 0x08
#define PACKET_START 0x10
#define SAME_IFIELD 0x80
typedef struct {
#if (BITS_PER_LONG == 64)
u64 addrlo;
#else
u32 addrhi;
u32 addrlo;
#endif
} rraddr;
static inline void set_rraddr(rraddr *ra, dma_addr_t addr)
{
unsigned long baddr = addr;
#if (BITS_PER_LONG == 64)
ra->addrlo = baddr;
#else
/* Don't bother setting zero every time */
ra->addrlo = baddr;
#endif
mb();
}
static inline void set_rxaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
{
unsigned long baddr = addr;
#if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
writel(baddr & 0xffffffff, ®s->RxRingHi);
writel(baddr >> 32, ®s->RxRingLo);
#elif (BITS_PER_LONG == 64)
writel(baddr >> 32, ®s->RxRingHi);
writel(baddr & 0xffffffff, ®s->RxRingLo);
#else
writel(0, ®s->RxRingHi);
writel(baddr, ®s->RxRingLo);
#endif
mb();
}
static inline void set_infoaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
{
unsigned long baddr = addr;
#if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
writel(baddr & 0xffffffff, ®s->InfoPtrHi);
writel(baddr >> 32, ®s->InfoPtrLo);
#elif (BITS_PER_LONG == 64)
writel(baddr >> 32, ®s->InfoPtrHi);
writel(baddr & 0xffffffff, ®s->InfoPtrLo);
#else
writel(0, ®s->InfoPtrHi);
writel(baddr, ®s->InfoPtrLo);
#endif
mb();
}
/*
* TX ring
*/
#ifdef CONFIG_ROADRUNNER_LARGE_RINGS
#define TX_RING_ENTRIES 32
#else
#define TX_RING_ENTRIES 16
#endif
#define TX_TOTAL_SIZE (TX_RING_ENTRIES * sizeof(struct tx_desc))
struct tx_desc{
rraddr addr;
u32 res;
#ifdef __LITTLE_ENDIAN
u16 size;
u8 pad;
u8 mode;
#else
u8 mode;
u8 pad;
u16 size;
#endif
};
#ifdef CONFIG_ROADRUNNER_LARGE_RINGS
#define RX_RING_ENTRIES 32
#else
#define RX_RING_ENTRIES 16
#endif
#define RX_TOTAL_SIZE (RX_RING_ENTRIES * sizeof(struct rx_desc))
struct rx_desc{
rraddr addr;
u32 res;
#ifdef __LITTLE_ENDIAN
u16 size;
u8 pad;
u8 mode;
#else
u8 mode;
u8 pad;
u16 size;
#endif
};
/*
* ioctl's
*/
#define SIOCRRPFW SIOCDEVPRIVATE /* put firmware */
#define SIOCRRGFW SIOCDEVPRIVATE+1 /* get firmware */
#define SIOCRRID SIOCDEVPRIVATE+2 /* identify */
struct seg_hdr {
u32 seg_start;
u32 seg_len;
u32 seg_eestart;
};
#define EEPROM_BASE 0x80000000
#define EEPROM_WORDS 8192
#define EEPROM_BYTES (EEPROM_WORDS * sizeof(u32))
struct eeprom_boot {
u32 key1;
u32 key2;
u32 sram_size;
struct seg_hdr loader;
u32 init_chksum;
u32 reserved1;
};
struct eeprom_manf {
u32 HeaderFmt;
u32 Firmware;
u32 BoardRevision;
u32 RoadrunnerRev;
char OpticsPart[8];
u32 OpticsRev;
u32 pad1;
char SramPart[8];
u32 SramRev;
u32 pad2;
char EepromPart[8];
u32 EepromRev;
u32 EepromSize;
char PalPart[8];
u32 PalRev;
u32 pad3;
char PalCodeFile[12];
u32 PalCodeRev;
char BoardULA[8];
char SerialNo[8];
char MfgDate[8];
char MfgTime[8];
char ModifyDate[8];
u32 ModCount;
u32 pad4[13];
};
struct eeprom_phase_info {
char phase1File[12];
u32 phase1Rev;
char phase1Date[8];
char phase2File[12];
u32 phase2Rev;
char phase2Date[8];
u32 reserved7[4];
};
struct eeprom_rncd_info {
u32 FwStart;
u32 FwRev;
char FwDate[8];
u32 AddrRunCodeSegs;
u32 FileNames;
char File[13][8];
};
/* Phase 1 region (starts are word offset 0x80) */
struct phase1_hdr{
u32 jump;
u32 noop;
struct seg_hdr phase2Seg;
};
struct eeprom {
struct eeprom_boot boot;
u32 pad1[8];
struct eeprom_manf manf;
struct eeprom_phase_info phase_info;
struct eeprom_rncd_info rncd_info;
u32 pad2[15];
u32 hdr_checksum;
struct phase1_hdr phase1;
};
struct rr_stats {
u32 NicTimeStamp;
u32 RngCreated;
u32 RngDeleted;
u32 IntrGen;
u32 NEvtOvfl;
u32 InvCmd;
u32 DmaReadErrs;
u32 DmaWriteErrs;
u32 StatUpdtT;
u32 StatUpdtC;
u32 WatchDog;
u32 Trace;
/* Serial HIPPI */
u32 LnkRdyEst;
u32 GLinkErr;
u32 AltFlgErr;
u32 OvhdBit8Sync;
u32 RmtSerPrtyErr;
u32 RmtParPrtyErr;
u32 RmtLoopBk;
u32 pad1;
/* HIPPI tx */
u32 ConEst;
u32 ConRejS;
u32 ConRetry;
u32 ConTmOut;
u32 SndConDiscon;
u32 SndParErr;
u32 PktSnt;
u32 pad2[2];
u32 ShFBstSnt;
u64 BytSent;
u32 TxTimeout;
u32 pad3[3];
/* HIPPI rx */
u32 ConAcc;
u32 ConRejdiPrty;
u32 ConRejd64b;
u32 ConRejdBuf;
u32 RxConDiscon;
u32 RxConNoData;
u32 PktRx;
u32 pad4[2];
u32 ShFBstRx;
u64 BytRx;
u32 RxParErr;
u32 RxLLRCerr;
u32 RxBstSZerr;
u32 RxStateErr;
u32 RxRdyErr;
u32 RxInvULP;
u32 RxSpcBuf;
u32 RxSpcDesc;
u32 RxRngSpc;
u32 RxRngFull;
u32 RxPktLenErr;
u32 RxCksmErr;
u32 RxPktDrp;
u32 RngLowSpc;
u32 RngDataClose;
u32 RxTimeout;
u32 RxIdle;
};
/*
* This struct is shared with the NIC firmware.
*/
struct ring_ctrl {
rraddr rngptr;
#ifdef __LITTLE_ENDIAN
u16 entries;
u8 pad;
u8 entry_size;
u16 pi;
u16 mode;
#else
u8 entry_size;
u8 pad;
u16 entries;
u16 mode;
u16 pi;
#endif
};
struct rr_info {
union {
struct rr_stats stats;
u32 stati[128];
} s;
struct ring_ctrl evt_ctrl;
struct ring_ctrl cmd_ctrl;
struct ring_ctrl tx_ctrl;
u8 pad[464];
u8 trace[3072];
};
/*
* The linux structure for the RoadRunner.
*
* RX/TX descriptors are put first to make sure they are properly
* aligned and do not cross cache-line boundaries.
*/
struct rr_private
{
struct rx_desc *rx_ring;
struct tx_desc *tx_ring;
struct event *evt_ring;
dma_addr_t tx_ring_dma;
dma_addr_t rx_ring_dma;
dma_addr_t evt_ring_dma;
/* Alignment ok ? */
struct sk_buff *rx_skbuff[RX_RING_ENTRIES];
struct sk_buff *tx_skbuff[TX_RING_ENTRIES];
struct rr_regs __iomem *regs; /* Register base */
struct ring_ctrl *rx_ctrl; /* Receive ring control */
struct rr_info *info; /* Shared info page */
dma_addr_t rx_ctrl_dma;
dma_addr_t info_dma;
spinlock_t lock;
struct timer_list timer;
u32 cur_rx, cur_cmd, cur_evt;
u32 dirty_rx, dirty_tx;
u32 tx_full;
u32 fw_rev;
volatile short fw_running;
struct net_device_stats stats;
struct pci_dev *pci_dev;
};
/*
* Prototypes
*/
static int rr_init(struct net_device *dev);
static int rr_init1(struct net_device *dev);
static irqreturn_t rr_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static int rr_open(struct net_device *dev);
static int rr_start_xmit(struct sk_buff *skb, struct net_device *dev);
static int rr_close(struct net_device *dev);
static struct net_device_stats *rr_get_stats(struct net_device *dev);
static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
unsigned long offset,
unsigned char *buf,
unsigned long length);
static u32 rr_read_eeprom_word(struct rr_private *rrpriv, void * offset);
static int rr_load_firmware(struct net_device *dev);
static inline void rr_raz_tx(struct rr_private *, struct net_device *);
static inline void rr_raz_rx(struct rr_private *, struct net_device *);
#endif /* _RRUNNER_H_ */
