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Diffstat (limited to 'drivers/net/tokenring/tms380tr.h')
| -rw-r--r-- | drivers/net/tokenring/tms380tr.h | 1141 |
1 files changed, 1141 insertions, 0 deletions
diff --git a/drivers/net/tokenring/tms380tr.h b/drivers/net/tokenring/tms380tr.h new file mode 100644 index 000000000000..f2c5ba0f37a5 --- /dev/null +++ b/drivers/net/tokenring/tms380tr.h @@ -0,0 +1,1141 @@ +/* + * tms380tr.h: TI TMS380 Token Ring driver for Linux + * + * Authors: + * - Christoph Goos <cgoos@syskonnect.de> + * - Adam Fritzler <mid@auk.cx> + */ + +#ifndef __LINUX_TMS380TR_H +#define __LINUX_TMS380TR_H + +#ifdef __KERNEL__ + +#include <linux/interrupt.h> + +/* module prototypes */ +int tms380tr_open(struct net_device *dev); +int tms380tr_close(struct net_device *dev); +irqreturn_t tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs); +int tmsdev_init(struct net_device *dev, unsigned long dmalimit, + struct pci_dev *pdev); +void tmsdev_term(struct net_device *dev); +void tms380tr_wait(unsigned long time); + +#define TMS380TR_MAX_ADAPTERS 7 + +#define SEND_TIMEOUT 10*HZ + +#define TR_RCF_LONGEST_FRAME_MASK 0x0070 +#define TR_RCF_FRAME4K 0x0030 + +/*------------------------------------------------------------------*/ +/* Bit order for adapter communication with DMA */ +/* -------------------------------------------------------------- */ +/* Bit 8 | 9| 10| 11|| 12| 13| 14| 15|| 0| 1| 2| 3|| 4| 5| 6| 7| */ +/* -------------------------------------------------------------- */ +/* The bytes in a word must be byte swapped. Also, if a double */ +/* word is used for storage, then the words, as well as the bytes, */ +/* must be swapped. */ +/* Bit order for adapter communication with DIO */ +/* -------------------------------------------------------------- */ +/* Bit 0 | 1| 2| 3|| 4| 5| 6| 7|| 8| 9| 10| 11|| 12| 13| 14| 15| */ +/* -------------------------------------------------------------- */ +/*------------------------------------------------------------------*/ + +/* Swap words of a long. */ +#define SWAPW(x) (((x) << 16) | ((x) >> 16)) + +/* Get the low byte of a word. */ +#define LOBYTE(w) ((unsigned char)(w)) + +/* Get the high byte of a word. */ +#define HIBYTE(w) ((unsigned char)((unsigned short)(w) >> 8)) + +/* Get the low word of a long. */ +#define LOWORD(l) ((unsigned short)(l)) + +/* Get the high word of a long. */ +#define HIWORD(l) ((unsigned short)((unsigned long)(l) >> 16)) + + + +/* Token ring adapter I/O addresses for normal mode. */ + +/* + * The SIF registers. Common to all adapters. + */ +/* Basic SIF (SRSX = 0) */ +#define SIFDAT 0x00 /* SIF/DMA data. */ +#define SIFINC 0x02 /* IO Word data with auto increment. */ +#define SIFINH 0x03 /* IO Byte data with auto increment. */ +#define SIFADR 0x04 /* SIF/DMA Address. */ +#define SIFCMD 0x06 /* SIF Command. */ +#define SIFSTS 0x06 /* SIF Status. */ + +/* "Extended" SIF (SRSX = 1) */ +#define SIFACL 0x08 /* SIF Adapter Control Register. */ +#define SIFADD 0x0a /* SIF/DMA Address. -- 0x0a */ +#define SIFADX 0x0c /* 0x0c */ +#define DMALEN 0x0e /* SIF DMA length. -- 0x0e */ + +/* + * POS Registers. Only for ISA Adapters. + */ +#define POSREG 0x10 /* Adapter Program Option Select (POS) + * Register: base IO address + 16 byte. + */ +#define POSREG_2 24L /* only for TR4/16+ adapter + * base IO address + 24 byte. -- 0x18 + */ + +/* SIFCMD command codes (high-low) */ +#define CMD_INTERRUPT_ADAPTER 0x8000 /* Cause internal adapter interrupt */ +#define CMD_ADAPTER_RESET 0x4000 /* Hardware reset of adapter */ +#define CMD_SSB_CLEAR 0x2000 /* Acknowledge to adapter to + * system interrupts. + */ +#define CMD_EXECUTE 0x1000 /* Execute SCB command */ +#define CMD_SCB_REQUEST 0x0800 /* Request adapter to interrupt + * system when SCB is available for + * another command. + */ +#define CMD_RX_CONTINUE 0x0400 /* Continue receive after odd pointer + * stop. (odd pointer receive method) + */ +#define CMD_RX_VALID 0x0200 /* Now actual RPL is valid. */ +#define CMD_TX_VALID 0x0100 /* Now actual TPL is valid. (valid + * bit receive/transmit method) + */ +#define CMD_SYSTEM_IRQ 0x0080 /* Adapter-to-attached-system + * interrupt is reset. + */ +#define CMD_CLEAR_SYSTEM_IRQ 0x0080 /* Clear SYSTEM_INTERRUPT bit. + * (write: 1=ignore, 0=reset) + */ +#define EXEC_SOFT_RESET 0xFF00 /* adapter soft reset. (restart + * adapter after hardware reset) + */ + + +/* ACL commands (high-low) */ +#define ACL_SWHLDA 0x0800 /* Software hold acknowledge. */ +#define ACL_SWDDIR 0x0400 /* Data transfer direction. */ +#define ACL_SWHRQ 0x0200 /* Pseudo DMA operation. */ +#define ACL_PSDMAEN 0x0100 /* Enable pseudo system DMA. */ +#define ACL_ARESET 0x0080 /* Adapter hardware reset command. + * (held in reset condition as + * long as bit is set) + */ +#define ACL_CPHALT 0x0040 /* Communication processor halt. + * (can only be set while ACL_ARESET + * bit is set; prevents adapter + * processor from executing code while + * downloading firmware) + */ +#define ACL_BOOT 0x0020 +#define ACL_SINTEN 0x0008 /* System interrupt enable/disable + * (1/0): can be written if ACL_ARESET + * is zero. + */ +#define ACL_PEN 0x0004 + +#define ACL_NSELOUT0 0x0002 +#define ACL_NSELOUT1 0x0001 /* NSELOUTx have a card-specific + * meaning for setting ring speed. + */ + +#define PS_DMA_MASK (ACL_SWHRQ | ACL_PSDMAEN) + + +/* SIFSTS register return codes (high-low) */ +#define STS_SYSTEM_IRQ 0x0080 /* Adapter-to-attached-system + * interrupt is valid. + */ +#define STS_INITIALIZE 0x0040 /* INITIALIZE status. (ready to + * initialize) + */ +#define STS_TEST 0x0020 /* TEST status. (BUD not completed) */ +#define STS_ERROR 0x0010 /* ERROR status. (unrecoverable + * HW error occurred) + */ +#define STS_MASK 0x00F0 /* Mask interesting status bits. */ +#define STS_ERROR_MASK 0x000F /* Get Error Code by masking the + * interrupt code bits. + */ +#define ADAPTER_INT_PTRS 0x0A00 /* Address offset of adapter internal + * pointers 01:0a00 (high-low) have to + * be read after init and before open. + */ + + +/* Interrupt Codes (only MAC IRQs) */ +#define STS_IRQ_ADAPTER_CHECK 0x0000 /* unrecoverable hardware or + * software error. + */ +#define STS_IRQ_RING_STATUS 0x0004 /* SSB is updated with ring status. */ +#define STS_IRQ_LLC_STATUS 0x0005 /* Not used in MAC-only microcode */ +#define STS_IRQ_SCB_CLEAR 0x0006 /* SCB clear, following an + * SCB_REQUEST IRQ. + */ +#define STS_IRQ_TIMER 0x0007 /* Not normally used in MAC ucode */ +#define STS_IRQ_COMMAND_STATUS 0x0008 /* SSB is updated with command + * status. + */ +#define STS_IRQ_RECEIVE_STATUS 0x000A /* SSB is updated with receive + * status. + */ +#define STS_IRQ_TRANSMIT_STATUS 0x000C /* SSB is updated with transmit + * status + */ +#define STS_IRQ_RECEIVE_PENDING 0x000E /* Not used in MAC-only microcode */ +#define STS_IRQ_MASK 0x000F /* = STS_ERROR_MASK. */ + + +/* TRANSMIT_STATUS completion code: (SSB.Parm[0]) */ +#define COMMAND_COMPLETE 0x0080 /* TRANSMIT command completed + * (avoid this!) issue another transmit + * to send additional frames. + */ +#define FRAME_COMPLETE 0x0040 /* Frame has been transmitted; + * INTERRUPT_FRAME bit was set in the + * CSTAT request; indication of possibly + * more than one frame transmissions! + * SSB.Parm[0-1]: 32 bit pointer to + * TPL of last frame. + */ +#define LIST_ERROR 0x0020 /* Error in one of the TPLs that + * compose the frame; TRANSMIT + * terminated; Parm[1-2]: 32bit pointer + * to TPL which starts the error + * frame; error details in bits 8-13. + * (14?) + */ +#define FRAME_SIZE_ERROR 0x8000 /* FRAME_SIZE does not equal the sum of + * the valid DATA_COUNT fields; + * FRAME_SIZE less than header plus + * information field. (15 bytes + + * routing field) Or if FRAME_SIZE + * was specified as zero in one list. + */ +#define TX_THRESHOLD 0x4000 /* FRAME_SIZE greater than (BUFFER_SIZE + * - 9) * TX_BUF_MAX. + */ +#define ODD_ADDRESS 0x2000 /* Odd forward pointer value is + * read on a list without END_FRAME + * indication. + */ +#define FRAME_ERROR 0x1000 /* START_FRAME bit (not) anticipated, + * but (not) set. + */ +#define ACCESS_PRIORITY_ERROR 0x0800 /* Access priority requested has not + * been allowed. + */ +#define UNENABLED_MAC_FRAME 0x0400 /* MAC frame has source class of zero + * or MAC frame PCF ATTN field is + * greater than one. + */ +#define ILLEGAL_FRAME_FORMAT 0x0200 /* Bit 0 or FC field was set to one. */ + + +/* + * Since we need to support some functions even if the adapter is in a + * CLOSED state, we have a (pseudo-) command queue which holds commands + * that are outstandig to be executed. + * + * Each time a command completes, an interrupt occurs and the next + * command is executed. The command queue is actually a simple word with + * a bit for each outstandig command. Therefore the commands will not be + * executed in the order they have been queued. + * + * The following defines the command code bits and the command queue: + */ +#define OC_OPEN 0x0001 /* OPEN command */ +#define OC_TRANSMIT 0x0002 /* TRANSMIT command */ +#define OC_TRANSMIT_HALT 0x0004 /* TRANSMIT_HALT command */ +#define OC_RECEIVE 0x0008 /* RECEIVE command */ +#define OC_CLOSE 0x0010 /* CLOSE command */ +#define OC_SET_GROUP_ADDR 0x0020 /* SET_GROUP_ADDR command */ +#define OC_SET_FUNCT_ADDR 0x0040 /* SET_FUNCT_ADDR command */ +#define OC_READ_ERROR_LOG 0x0080 /* READ_ERROR_LOG command */ +#define OC_READ_ADAPTER 0x0100 /* READ_ADAPTER command */ +#define OC_MODIFY_OPEN_PARMS 0x0400 /* MODIFY_OPEN_PARMS command */ +#define OC_RESTORE_OPEN_PARMS 0x0800 /* RESTORE_OPEN_PARMS command */ +#define OC_SET_FIRST_16_GROUP 0x1000 /* SET_FIRST_16_GROUP command */ +#define OC_SET_BRIDGE_PARMS 0x2000 /* SET_BRIDGE_PARMS command */ +#define OC_CONFIG_BRIDGE_PARMS 0x4000 /* CONFIG_BRIDGE_PARMS command */ + +#define OPEN 0x0300 /* C: open command. S: completion. */ +#define TRANSMIT 0x0400 /* C: transmit command. S: completion + * status. (reject: COMMAND_REJECT if + * adapter not opened, TRANSMIT already + * issued or address passed in the SCB + * not word aligned) + */ +#define TRANSMIT_HALT 0x0500 /* C: interrupt TX TPL chain; if no + * TRANSMIT command issued, the command + * is ignored (completion with TRANSMIT + * status (0x0400)!) + */ +#define RECEIVE 0x0600 /* C: receive command. S: completion + * status. (reject: COMMAND_REJECT if + * adapter not opened, RECEIVE already + * issued or address passed in the SCB + * not word aligned) + */ +#define CLOSE 0x0700 /* C: close adapter. S: completion. + * (COMMAND_REJECT if adapter not open) + */ +#define SET_GROUP_ADDR 0x0800 /* C: alter adapter group address after + * OPEN. S: completion. (COMMAND_REJECT + * if adapter not open) + */ +#define SET_FUNCT_ADDR 0x0900 /* C: alter adapter functional address + * after OPEN. S: completion. + * (COMMAND_REJECT if adapter not open) + */ +#define READ_ERROR_LOG 0x0A00 /* C: read adapter error counters. + * S: completion. (command ignored + * if adapter not open!) + */ +#define READ_ADAPTER 0x0B00 /* C: read data from adapter memory. + * (important: after init and before + * open!) S: completion. (ADAPTER_CHECK + * interrupt if undefined storage area + * read) + */ +#define MODIFY_OPEN_PARMS 0x0D00 /* C: modify some adapter operational + * parameters. (bit correspondend to + * WRAP_INTERFACE is ignored) + * S: completion. (reject: + * COMMAND_REJECT) + */ +#define RESTORE_OPEN_PARMS 0x0E00 /* C: modify some adapter operational + * parameters. (bit correspondend + * to WRAP_INTERFACE is ignored) + * S: completion. (reject: + * COMMAND_REJECT) + */ +#define SET_FIRST_16_GROUP 0x0F00 /* C: alter the first two bytes in + * adapter group address. + * S: completion. (reject: + * COMMAND_REJECT) + */ +#define SET_BRIDGE_PARMS 0x1000 /* C: values and conditions for the + * adapter hardware to use when frames + * are copied for forwarding. + * S: completion. (reject: + * COMMAND_REJECT) + */ +#define CONFIG_BRIDGE_PARMS 0x1100 /* C: .. + * S: completion. (reject: + * COMMAND_REJECT) + */ + +#define SPEED_4 4 +#define SPEED_16 16 /* Default transmission speed */ + + +/* Initialization Parameter Block (IPB); word alignment necessary! */ +#define BURST_SIZE 0x0018 /* Default burst size */ +#define BURST_MODE 0x9F00 /* Burst mode enable */ +#define DMA_RETRIES 0x0505 /* Magic DMA retry number... */ + +#define CYCLE_TIME 3 /* Default AT-bus cycle time: 500 ns + * (later adapter version: fix cycle time!) + */ +#define LINE_SPEED_BIT 0x80 + +/* Macro definition for the wait function. */ +#define ONE_SECOND_TICKS 1000000 +#define HALF_SECOND (ONE_SECOND_TICKS / 2) +#define ONE_SECOND (ONE_SECOND_TICKS) +#define TWO_SECONDS (ONE_SECOND_TICKS * 2) +#define THREE_SECONDS (ONE_SECOND_TICKS * 3) +#define FOUR_SECONDS (ONE_SECOND_TICKS * 4) +#define FIVE_SECONDS (ONE_SECOND_TICKS * 5) + +#define BUFFER_SIZE 2048 /* Buffers on Adapter */ + +#pragma pack(1) +typedef struct { + unsigned short Init_Options; /* Initialize with burst mode; + * LLC disabled. (MAC only) + */ + + /* Interrupt vectors the adapter places on attached system bus. */ + u_int8_t CMD_Status_IV; /* Interrupt vector: command status. */ + u_int8_t TX_IV; /* Interrupt vector: transmit. */ + u_int8_t RX_IV; /* Interrupt vector: receive. */ + u_int8_t Ring_Status_IV; /* Interrupt vector: ring status. */ + u_int8_t SCB_Clear_IV; /* Interrupt vector: SCB clear. */ + u_int8_t Adapter_CHK_IV; /* Interrupt vector: adapter check. */ + + u_int16_t RX_Burst_Size; /* Max. number of transfer cycles. */ + u_int16_t TX_Burst_Size; /* During DMA burst; even value! */ + u_int16_t DMA_Abort_Thrhld; /* Number of DMA retries. */ + + u_int32_t SCB_Addr; /* SCB address: even, word aligned, high-low */ + u_int32_t SSB_Addr; /* SSB address: even, word aligned, high-low */ +} IPB, *IPB_Ptr; +#pragma pack() + +/* + * OPEN Command Parameter List (OCPL) (can be reused, if the adapter has to + * be reopened) + */ +#define BUFFER_SIZE 2048 /* Buffers on Adapter. */ +#define TPL_SIZE 8+6*TX_FRAG_NUM /* Depending on fragments per TPL. */ +#define RPL_SIZE 14 /* (with TI firmware v2.26 handling + * up to nine fragments possible) + */ +#define TX_BUF_MIN 20 /* ??? (Stephan: calculation with */ +#define TX_BUF_MAX 40 /* BUFFER_SIZE and MAX_FRAME_SIZE) ??? + */ +#define DISABLE_EARLY_TOKEN_RELEASE 0x1000 + +/* OPEN Options (high-low) */ +#define WRAP_INTERFACE 0x0080 /* Inserting omitted for test + * purposes; transmit data appears + * as receive data. (useful for + * testing; change: CLOSE necessary) + */ +#define DISABLE_HARD_ERROR 0x0040 /* On HARD_ERROR & TRANSMIT_BEACON + * no RING.STATUS interrupt. + */ +#define DISABLE_SOFT_ERROR 0x0020 /* On SOFT_ERROR, no RING.STATUS + * interrupt. + */ +#define PASS_ADAPTER_MAC_FRAMES 0x0010 /* Passing unsupported MAC frames + * to system. + */ +#define PASS_ATTENTION_FRAMES 0x0008 /* All changed attention MAC frames are + * passed to the system. + */ +#define PAD_ROUTING_FIELD 0x0004 /* Routing field is padded to 18 + * bytes. + */ +#define FRAME_HOLD 0x0002 /*Adapter waits for entire frame before + * initiating DMA transfer; otherwise: + * DMA transfer initiation if internal + * buffer filled. + */ +#define CONTENDER 0x0001 /* Adapter participates in the monitor + * contention process. + */ +#define PASS_BEACON_MAC_FRAMES 0x8000 /* Adapter passes beacon MAC frames + * to the system. + */ +#define EARLY_TOKEN_RELEASE 0x1000 /* Only valid in 16 Mbps operation; + * 0 = ETR. (no effect in 4 Mbps + * operation) + */ +#define COPY_ALL_MAC_FRAMES 0x0400 /* All MAC frames are copied to + * the system. (after OPEN: duplicate + * address test (DAT) MAC frame is + * first received frame copied to the + * system) + */ +#define COPY_ALL_NON_MAC_FRAMES 0x0200 /* All non MAC frames are copied to + * the system. + */ +#define PASS_FIRST_BUF_ONLY 0x0100 /* Passes only first internal buffer + * of each received frame; FrameSize + * of RPLs must contain internal + * BUFFER_SIZE bits for promiscous mode. + */ +#define ENABLE_FULL_DUPLEX_SELECTION 0x2000 + /* Enable the use of full-duplex + * settings with bits in byte 22 in + * ocpl. (new feature in firmware + * version 3.09) + */ + +/* Full-duplex settings */ +#define OPEN_FULL_DUPLEX_OFF 0x0000 +#define OPEN_FULL_DUPLEX_ON 0x00c0 +#define OPEN_FULL_DUPLEX_AUTO 0x0080 + +#define PROD_ID_SIZE 18 /* Length of product ID. */ + +#define TX_FRAG_NUM 3 /* Number of fragments used in one TPL. */ +#define TX_MORE_FRAGMENTS 0x8000 /* Bit set in DataCount to indicate more + * fragments following. + */ + +/* XXX is there some better way to do this? */ +#define ISA_MAX_ADDRESS 0x00ffffff +#define PCI_MAX_ADDRESS 0xffffffff + +#pragma pack(1) +typedef struct { + u_int16_t OPENOptions; + u_int8_t NodeAddr[6]; /* Adapter node address; use ROM + * address + */ + u_int32_t GroupAddr; /* Multicast: high order + * bytes = 0xC000 + */ + u_int32_t FunctAddr; /* High order bytes = 0xC000 */ + u_int16_t RxListSize; /* RPL size: 0 (=26), 14, 20 or + * 26 bytes read by the adapter. + * (Depending on the number of + * fragments/list) + */ + u_int16_t TxListSize; /* TPL size */ + u_int16_t BufSize; /* Is automatically rounded up to the + * nearest nK boundary. + */ + u_int16_t FullDuplex; + u_int16_t Reserved; + u_int8_t TXBufMin; /* Number of adapter buffers reserved + * for transmission a minimum of 2 + * buffers must be allocated. + */ + u_int8_t TXBufMax; /* Maximum number of adapter buffers + * for transmit; a minimum of 2 buffers + * must be available for receive. + * Default: 6 + */ + u_int16_t ProdIDAddr[2];/* Pointer to product ID. */ +} OPB, *OPB_Ptr; +#pragma pack() + +/* + * SCB: adapter commands enabled by the host system started by writing + * CMD_INTERRUPT_ADAPTER | CMD_EXECUTE (|SCB_REQUEST) to the SIFCMD IO + * register. (special case: | CMD_SYSTEM_IRQ for initialization) + */ +#pragma pack(1) +typedef struct { + u_int16_t CMD; /* Command code */ + u_int16_t Parm[2]; /* Pointer to Command Parameter Block */ +} SCB; /* System Command Block (32 bit physical address; big endian)*/ +#pragma pack() + +/* + * SSB: adapter command return status can be evaluated after COMMAND_STATUS + * adapter to system interrupt after reading SSB, the availability of the SSB + * has to be told the adapter by writing CMD_INTERRUPT_ADAPTER | CMD_SSB_CLEAR + * in the SIFCMD IO register. + */ +#pragma pack(1) +typedef struct { + u_int16_t STS; /* Status code */ + u_int16_t Parm[3]; /* Parameter or pointer to Status Parameter + * Block. + */ +} SSB; /* System Status Block (big endian - physical address) */ +#pragma pack() + +typedef struct { + unsigned short BurnedInAddrPtr; /* Pointer to adapter burned in + * address. (BIA) + */ + unsigned short SoftwareLevelPtr;/* Pointer to software level data. */ + unsigned short AdapterAddrPtr; /* Pointer to adapter addresses. */ + unsigned short AdapterParmsPtr; /* Pointer to adapter parameters. */ + unsigned short MACBufferPtr; /* Pointer to MAC buffer. (internal) */ + unsigned short LLCCountersPtr; /* Pointer to LLC counters. */ + unsigned short SpeedFlagPtr; /* Pointer to data rate flag. + * (4/16 Mbps) + */ + unsigned short AdapterRAMPtr; /* Pointer to adapter RAM found. (KB) */ +} INTPTRS; /* Adapter internal pointers */ + +#pragma pack(1) +typedef struct { + u_int8_t Line_Error; /* Line error: code violation in + * frame or in a token, or FCS error. + */ + u_int8_t Internal_Error; /* IBM specific. (Reserved_1) */ + u_int8_t Burst_Error; + u_int8_t ARI_FCI_Error; /* ARI/FCI bit zero in AMP or + * SMP MAC frame. + */ + u_int8_t AbortDelimeters; /* IBM specific. (Reserved_2) */ + u_int8_t Reserved_3; + u_int8_t Lost_Frame_Error; /* Receive of end of transmitted + * frame failed. + */ + u_int8_t Rx_Congest_Error; /* Adapter in repeat mode has not + * enough buffer space to copy incoming + * frame. + */ + u_int8_t Frame_Copied_Error; /* ARI bit not zero in frame + * addressed to adapter. + */ + u_int8_t Frequency_Error; /* IBM specific. (Reserved_4) */ + u_int8_t Token_Error; /* (active only in monitor station) */ + u_int8_t Reserved_5; + u_int8_t DMA_Bus_Error; /* DMA bus errors not exceeding the + * abort thresholds. + */ + u_int8_t DMA_Parity_Error; /* DMA parity errors not exceeding + * the abort thresholds. + */ +} ERRORTAB; /* Adapter error counters */ +#pragma pack() + + +/*--------------------- Send and Receive definitions -------------------*/ +#pragma pack(1) +typedef struct { + u_int16_t DataCount; /* Value 0, even and odd values are + * permitted; value is unaltered most + * significant bit set: following + * fragments last fragment: most + * significant bit is not evaluated. + * (???) + */ + u_int32_t DataAddr; /* Pointer to frame data fragment; + * even or odd. + */ +} Fragment; +#pragma pack() + +#define MAX_FRAG_NUMBERS 9 /* Maximal number of fragments possible to use + * in one RPL/TPL. (depending on TI firmware + * version) + */ + +/* + * AC (1), FC (1), Dst (6), Src (6), RIF (18), Data (4472) = 4504 + * The packet size can be one of the follows: 548, 1502, 2084, 4504, 8176, + * 11439, 17832. Refer to TMS380 Second Generation Token Ring User's Guide + * Page 2-27. + */ +#define HEADER_SIZE (1 + 1 + 6 + 6) +#define SRC_SIZE 18 +#define MIN_DATA_SIZE 516 +#define DEFAULT_DATA_SIZE 4472 +#define MAX_DATA_SIZE 17800 + +#define DEFAULT_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + DEFAULT_DATA_SIZE) +#define MIN_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + MIN_DATA_SIZE) +#define MAX_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + MAX_DATA_SIZE) + +/* + * Macros to deal with the frame status field. + */ +#define AC_NOT_RECOGNIZED 0x00 +#define GROUP_BIT 0x80 +#define GET_TRANSMIT_STATUS_HIGH_BYTE(Ts) ((unsigned char)((Ts) >> 8)) +#define GET_FRAME_STATUS_HIGH_AC(Fs) ((unsigned char)(((Fs) & 0xC0) >> 6)) +#define GET_FRAME_STATUS_LOW_AC(Fs) ((unsigned char)(((Fs) & 0x0C) >> 2)) +#define DIRECTED_FRAME(Context) (!((Context)->MData[2] & GROUP_BIT)) + + +/*--------------------- Send Functions ---------------------------------*/ +/* define TX_CSTAT _REQUEST (R) and _COMPLETE (C) values (high-low) */ + +#define TX_VALID 0x0080 /* R: set via TRANSMIT.VALID interrupt. + * C: always reset to zero! + */ +#define TX_FRAME_COMPLETE 0x0040 /* R: must be reset to zero. + * C: set to one. + */ +#define TX_START_FRAME 0x0020 /* R: start of a frame: 1 + * C: unchanged. + */ +#define TX_END_FRAME 0x0010 /* R: end of a frame: 1 + * C: unchanged. + */ +#define TX_FRAME_IRQ 0x0008 /* R: request interrupt generation + * after transmission. + * C: unchanged. + */ +#define TX_ERROR 0x0004 /* R: reserved. + * C: set to one if Error occurred. + */ +#define TX_INTERFRAME_WAIT 0x0004 +#define TX_PASS_CRC 0x0002 /* R: set if CRC value is already + * calculated. (valid only in + * FRAME_START TPL) + * C: unchanged. + */ +#define TX_PASS_SRC_ADDR 0x0001 /* R: adapter uses explicit frame + * source address and does not overwrite + * with the adapter node address. + * (valid only in FRAME_START TPL) + * + * C: unchanged. + */ +#define TX_STRIP_FS 0xFF00 /* R: reserved. + * C: if no Transmission Error, + * field contains copy of FS byte after + * stripping of frame. + */ + +/* + * Structure of Transmit Parameter Lists (TPLs) (only one frame every TPL, + * but possibly multiple TPLs for one frame) the length of the TPLs has to be + * initialized in the OPL. (OPEN parameter list) + */ +#define TPL_NUM 3 /* Number of Transmit Parameter Lists. + * !! MUST BE >= 3 !! + */ + +#pragma pack(1) +typedef struct s_TPL TPL; + +struct s_TPL { /* Transmit Parameter List (align on even word boundaries) */ + u_int32_t NextTPLAddr; /* Pointer to next TPL in chain; if + * pointer is odd: this is the last + * TPL. Pointing to itself can cause + * problems! + */ + volatile u_int16_t Status; /* Initialized by the adapter: + * CSTAT_REQUEST important: update least + * significant bit first! Set by the + * adapter: CSTAT_COMPLETE status. + */ + u_int16_t FrameSize; /* Number of bytes to be transmitted + * as a frame including AC/FC, + * Destination, Source, Routing field + * not including CRC, FS, End Delimiter + * (valid only if START_FRAME bit in + * CSTAT nonzero) must not be zero in + * any list; maximum value: (BUFFER_SIZE + * - 8) * TX_BUF_MAX sum of DataCount + * values in FragmentList must equal + * Frame_Size value in START_FRAME TPL! + * frame data fragment list. + */ + + /* TPL/RPL size in OPEN parameter list depending on maximal + * numbers of fragments used in one parameter list. + */ + Fragment FragList[TX_FRAG_NUM]; /* Maximum: nine frame fragments in one + * TPL actual version of firmware: 9 + * fragments possible. + */ +#pragma pack() + + /* Special proprietary data and precalculations */ + + TPL *NextTPLPtr; /* Pointer to next TPL in chain. */ + unsigned char *MData; + struct sk_buff *Skb; + unsigned char TPLIndex; + volatile unsigned char BusyFlag;/* Flag: TPL busy? */ + dma_addr_t DMABuff; /* DMA IO bus address from pci_map */ +}; + +/* ---------------------Receive Functions-------------------------------* + * define RECEIVE_CSTAT_REQUEST (R) and RECEIVE_CSTAT_COMPLETE (C) values. + * (high-low) + */ +#define RX_VALID 0x0080 /* R: set; tell adapter with + * RECEIVE.VALID interrupt. + * C: reset to zero. + */ +#define RX_FRAME_COMPLETE 0x0040 /* R: must be reset to zero, + * C: set to one. + */ +#define RX_START_FRAME 0x0020 /* R: must be reset to zero. + * C: set to one on the list. + */ +#define RX_END_FRAME 0x0010 /* R: must be reset to zero. + * C: set to one on the list + * that ends the frame. + */ +#define RX_FRAME_IRQ 0x0008 /* R: request interrupt generation + * after receive. + * C: unchanged. + */ +#define RX_INTERFRAME_WAIT 0x0004 /* R: after receiving a frame: + * interrupt and wait for a + * RECEIVE.CONTINUE. + * C: unchanged. + */ +#define RX_PASS_CRC 0x0002 /* R: if set, the adapter includes + * the CRC in data passed. (last four + * bytes; valid only if FRAME_START is + * set) + * C: set, if CRC is included in + * received data. + */ +#define RX_PASS_SRC_ADDR 0x0001 /* R: adapter uses explicit frame + * source address and does not + * overwrite with the adapter node + * address. (valid only if FRAME_START + * is set) + * C: unchanged. + */ +#define RX_RECEIVE_FS 0xFC00 /* R: reserved; must be reset to zero. + * C: on lists with START_FRAME, field + * contains frame status field from + * received frame; otherwise cleared. + */ +#define RX_ADDR_MATCH 0x0300 /* R: reserved; must be reset to zero. + * C: address match code mask. + */ +#define RX_STATUS_MASK 0x00FF /* Mask for receive status bits. */ + +#define RX_INTERN_ADDR_MATCH 0x0100 /* C: internally address match. */ +#define RX_EXTERN_ADDR_MATCH 0x0200 /* C: externally matched via + * XMATCH/XFAIL interface. + */ +#define RX_INTEXT_ADDR_MATCH 0x0300 /* C: internally and externally + * matched. + */ +#define RX_READY (RX_VALID | RX_FRAME_IRQ) /* Ready for receive. */ + +/* Constants for Command Status Interrupt. + * COMMAND_REJECT status field bit functions (SSB.Parm[0]) + */ +#define ILLEGAL_COMMAND 0x0080 /* Set if an unknown command + * is issued to the adapter + */ +#define ADDRESS_ERROR 0x0040 /* Set if any address field in + * the SCB is odd. (not word aligned) + */ +#define ADAPTER_OPEN 0x0020 /* Command issued illegal with + * open adapter. + */ +#define ADAPTER_CLOSE 0x0010 /* Command issued illegal with + * closed adapter. + */ +#define SAME_COMMAND 0x0008 /* Command issued with same command + * already executing. + */ + +/* OPEN_COMPLETION values (SSB.Parm[0], MSB) */ +#define NODE_ADDR_ERROR 0x0040 /* Wrong address or BIA read + * zero address. + */ +#define LIST_SIZE_ERROR 0x0020 /* If List_Size value not in 0, + * 14, 20, 26. + */ +#define BUF_SIZE_ERROR 0x0010 /* Not enough available memory for + * two buffers. + */ +#define TX_BUF_COUNT_ERROR 0x0004 /* Remaining receive buffers less than + * two. + */ +#define OPEN_ERROR 0x0002 /* Error during ring insertion; more + * information in bits 8-15. + */ + +/* Standard return codes */ +#define GOOD_COMPLETION 0x0080 /* =OPEN_SUCCESSFULL */ +#define INVALID_OPEN_OPTION 0x0001 /* OPEN options are not supported by + * the adapter. + */ + +/* OPEN phases; details of OPEN_ERROR (SSB.Parm[0], LSB) */ +#define OPEN_PHASES_MASK 0xF000 /* Check only the bits 8-11. */ +#define LOBE_MEDIA_TEST 0x1000 +#define PHYSICAL_INSERTION 0x2000 +#define ADDRESS_VERIFICATION 0x3000 +#define PARTICIPATION_IN_RING_POLL 0x4000 +#define REQUEST_INITIALISATION 0x5000 +#define FULLDUPLEX_CHECK 0x6000 + +/* OPEN error codes; details of OPEN_ERROR (SSB.Parm[0], LSB) */ +#define OPEN_ERROR_CODES_MASK 0x0F00 /* Check only the bits 12-15. */ +#define OPEN_FUNCTION_FAILURE 0x0100 /* Unable to transmit to itself or + * frames received before insertion. + */ +#define OPEN_SIGNAL_LOSS 0x0200 /* Signal loss condition detected at + * receiver. + */ +#define OPEN_TIMEOUT 0x0500 /* Insertion timer expired before + * logical insertion. + */ +#define OPEN_RING_FAILURE 0x0600 /* Unable to receive own ring purge + * MAC frames. + */ +#define OPEN_RING_BEACONING 0x0700 /* Beacon MAC frame received after + * ring insertion. + */ +#define OPEN_DUPLICATE_NODEADDR 0x0800 /* Other station in ring found + * with the same address. + */ +#define OPEN_REQUEST_INIT 0x0900 /* RPS present but does not respond. */ +#define OPEN_REMOVE_RECEIVED 0x0A00 /* Adapter received a remove adapter + * MAC frame. + */ +#define OPEN_FULLDUPLEX_SET 0x0D00 /* Got this with full duplex on when + * trying to connect to a normal ring. + */ + +/* SET_BRIDGE_PARMS return codes: */ +#define BRIDGE_INVALID_MAX_LEN 0x4000 /* MAX_ROUTING_FIELD_LENGTH odd, + * less than 6 or > 30. + */ +#define BRIDGE_INVALID_SRC_RING 0x2000 /* SOURCE_RING number zero, too large + * or = TARGET_RING. + */ +#define BRIDGE_INVALID_TRG_RING 0x1000 /* TARGET_RING number zero, too large + * or = SOURCE_RING. + */ +#define BRIDGE_INVALID_BRDGE_NO 0x0800 /* BRIDGE_NUMBER too large. */ +#define BRIDGE_INVALID_OPTIONS 0x0400 /* Invalid bridge options. */ +#define BRIDGE_DIAGS_FAILED 0x0200 /* Diagnostics of TMS380SRA failed. */ +#define BRIDGE_NO_SRA 0x0100 /* The TMS380SRA does not exist in HW + * configuration. + */ + +/* + * Bring Up Diagnostics error codes. + */ +#define BUD_INITIAL_ERROR 0x0 +#define BUD_CHECKSUM_ERROR 0x1 +#define BUD_ADAPTER_RAM_ERROR 0x2 +#define BUD_INSTRUCTION_ERROR 0x3 +#define BUD_CONTEXT_ERROR 0x4 +#define BUD_PROTOCOL_ERROR 0x5 +#define BUD_INTERFACE_ERROR 0x6 + +/* BUD constants */ +#define BUD_MAX_RETRIES 3 +#define BUD_MAX_LOOPCNT 6 +#define BUD_TIMEOUT 3000 + +/* Initialization constants */ +#define INIT_MAX_RETRIES 3 /* Maximum three retries. */ +#define INIT_MAX_LOOPCNT 22 /* Maximum loop counts. */ + +/* RING STATUS field values (high/low) */ +#define SIGNAL_LOSS 0x0080 /* Loss of signal on the ring + * detected. + */ +#define HARD_ERROR 0x0040 /* Transmitting or receiving beacon + * frames. + */ +#define SOFT_ERROR 0x0020 /* Report error MAC frame + * transmitted. + */ +#define TRANSMIT_BEACON 0x0010 /* Transmitting beacon frames on the + * ring. + */ +#define LOBE_WIRE_FAULT 0x0008 /* Open or short circuit in the + * cable to concentrator; adapter + * closed. + */ +#define AUTO_REMOVAL_ERROR 0x0004 /* Lobe wrap test failed, deinserted; + * adapter closed. + */ +#define REMOVE_RECEIVED 0x0001 /* Received a remove ring station MAC + * MAC frame request; adapter closed. + */ +#define COUNTER_OVERFLOW 0x8000 /* Overflow of one of the adapters + * error counters; READ.ERROR.LOG. + */ +#define SINGLE_STATION 0x4000 /* Adapter is the only station on the + * ring. + */ +#define RING_RECOVERY 0x2000 /* Claim token MAC frames on the ring; + * reset after ring purge frame. + */ + +#define ADAPTER_CLOSED (LOBE_WIRE_FAULT | AUTO_REMOVAL_ERROR |\ + REMOVE_RECEIVED) + +/* Adapter_check_block.Status field bit assignments: */ +#define DIO_PARITY 0x8000 /* Adapter detects bad parity + * through direct I/O access. + */ +#define DMA_READ_ABORT 0x4000 /* Aborting DMA read operation + * from system Parm[0]: 0=timeout, + * 1=parity error, 2=bus error; + * Parm[1]: 32 bit pointer to host + * system address at failure. + */ +#define DMA_WRITE_ABORT 0x2000 /* Aborting DMA write operation + * to system. (parameters analogous to + * DMA_READ_ABORT) + */ +#define ILLEGAL_OP_CODE 0x1000 /* Illegal operation code in the + * the adapters firmware Parm[0]-2: + * communications processor registers + * R13-R15. + */ +#define PARITY_ERRORS 0x0800 /* Adapter detects internal bus + * parity error. + */ +#define RAM_DATA_ERROR 0x0080 /* Valid only during RAM testing; + * RAM data error Parm[0-1]: 32 bit + * pointer to RAM location. + */ +#define RAM_PARITY_ERROR 0x0040 /* Valid only during RAM testing; + * RAM parity error Parm[0-1]: 32 bit + * pointer to RAM location. + */ +#define RING_UNDERRUN 0x0020 /* Internal DMA underrun when + * transmitting onto ring. + */ +#define INVALID_IRQ 0x0008 /* Unrecognized interrupt generated + * internal to adapter Parm[0-2]: + * adapter register R13-R15. + */ +#define INVALID_ERROR_IRQ 0x0004 /* Unrecognized error interrupt + * generated Parm[0-2]: adapter register + * R13-R15. + */ +#define INVALID_XOP 0x0002 /* Unrecognized XOP request in + * communication processor Parm[0-2]: + * adapter register R13-R15. + */ +#define CHECKADDR 0x05E0 /* Adapter check status information + * address offset. + */ +#define ROM_PAGE_0 0x0000 /* Adapter ROM page 0. */ + +/* + * RECEIVE.STATUS interrupt result SSB values: (high-low) + * (RECEIVE_COMPLETE field bit definitions in SSB.Parm[0]) + */ +#define RX_COMPLETE 0x0080 /* SSB.Parm[0]; SSB.Parm[1]: 32 + * bit pointer to last RPL. + */ +#define RX_SUSPENDED 0x0040 /* SSB.Parm[0]; SSB.Parm[1]: 32 + * bit pointer to RPL with odd + * forward pointer. + */ + +/* Valid receive CSTAT: */ +#define RX_FRAME_CONTROL_BITS (RX_VALID | RX_START_FRAME | RX_END_FRAME | \ + RX_FRAME_COMPLETE) +#define VALID_SINGLE_BUFFER_FRAME (RX_START_FRAME | RX_END_FRAME | \ + RX_FRAME_COMPLETE) + +typedef enum SKB_STAT SKB_STAT; +enum SKB_STAT { + SKB_UNAVAILABLE, + SKB_DMA_DIRECT, + SKB_DATA_COPY +}; + +/* Receive Parameter List (RPL) The length of the RPLs has to be initialized + * in the OPL. (OPEN parameter list) + */ +#define RPL_NUM 3 + +#define RX_FRAG_NUM 1 /* Maximal number of used fragments in one RPL. + * (up to firmware v2.24: 3, now: up to 9) + */ + +#pragma pack(1) +typedef struct s_RPL RPL; +struct s_RPL { /* Receive Parameter List */ + u_int32_t NextRPLAddr; /* Pointer to next RPL in chain + * (normalized = physical 32 bit + * address) if pointer is odd: this + * is last RPL. Pointing to itself can + * cause problems! + */ + volatile u_int16_t Status; /* Set by creation of Receive Parameter + * List RECEIVE_CSTAT_COMPLETE set by + * adapter in lists that start or end + * a frame. + */ + volatile u_int16_t FrameSize; /* Number of bytes received as a + * frame including AC/FC, Destination, + * Source, Routing field not including + * CRC, FS (Frame Status), End Delimiter + * (valid only if START_FRAME bit in + * CSTAT nonzero) must not be zero in + * any list; maximum value: (BUFFER_SIZE + * - 8) * TX_BUF_MAX sum of DataCount + * values in FragmentList must equal + * Frame_Size value in START_FRAME TPL! + * frame data fragment list + */ + + /* TPL/RPL size in OPEN parameter list depending on maximal numbers + * of fragments used in one parameter list. + */ + Fragment FragList[RX_FRAG_NUM]; /* Maximum: nine frame fragments in + * one TPL. Actual version of firmware: + * 9 fragments possible. + */ +#pragma pack() + + /* Special proprietary data and precalculations. */ + RPL *NextRPLPtr; /* Logical pointer to next RPL in chain. */ + unsigned char *MData; + struct sk_buff *Skb; + SKB_STAT SkbStat; + int RPLIndex; + dma_addr_t DMABuff; /* DMA IO bus address from pci_map */ +}; + +/* Information that need to be kept for each board. */ +typedef struct net_local { +#pragma pack(1) + IPB ipb; /* Initialization Parameter Block. */ + SCB scb; /* System Command Block: system to adapter + * communication. + */ + SSB ssb; /* System Status Block: adapter to system + * communication. + */ + OPB ocpl; /* Open Options Parameter Block. */ + + ERRORTAB errorlogtable; /* Adapter statistic error counters. + * (read from adapter memory) + */ + unsigned char ProductID[PROD_ID_SIZE + 1]; /* Product ID */ +#pragma pack() + + TPL Tpl[TPL_NUM]; + TPL *TplFree; + TPL *TplBusy; + unsigned char LocalTxBuffers[TPL_NUM][DEFAULT_PACKET_SIZE]; + + RPL Rpl[RPL_NUM]; + RPL *RplHead; + RPL *RplTail; + unsigned char LocalRxBuffers[RPL_NUM][DEFAULT_PACKET_SIZE]; + + struct pci_dev *pdev; + int DataRate; + unsigned char ScbInUse; + unsigned short CMDqueue; + + unsigned long AdapterOpenFlag:1; + unsigned long AdapterVirtOpenFlag:1; + unsigned long OpenCommandIssued:1; + unsigned long TransmitCommandActive:1; + unsigned long TransmitHaltScheduled:1; + unsigned long HaltInProgress:1; + unsigned long LobeWireFaultLogged:1; + unsigned long ReOpenInProgress:1; + unsigned long Sleeping:1; + + unsigned long LastOpenStatus; + unsigned short CurrentRingStatus; + unsigned long MaxPacketSize; + + unsigned long StartTime; + unsigned long LastSendTime; + + struct tr_statistics MacStat; /* MAC statistics structure */ + + unsigned long dmalimit; /* the max DMA address (ie, ISA) */ + dma_addr_t dmabuffer; /* the DMA bus address corresponding to + priv. Might be different from virt_to_bus() + for architectures with IO MMU (Alpha) */ + + struct timer_list timer; + + wait_queue_head_t wait_for_tok_int; + + INTPTRS intptrs; /* Internal adapter pointer. Must be read + * before OPEN command. + */ + unsigned short (*setnselout)(struct net_device *); + unsigned short (*sifreadb)(struct net_device *, unsigned short); + void (*sifwriteb)(struct net_device *, unsigned short, unsigned short); + unsigned short (*sifreadw)(struct net_device *, unsigned short); + void (*sifwritew)(struct net_device *, unsigned short, unsigned short); + + spinlock_t lock; /* SMP protection */ + void *tmspriv; +} NET_LOCAL; + +#endif /* __KERNEL__ */ +#endif /* __LINUX_TMS380TR_H */ |