patch-2.1.107 linux/drivers/net/sktr.h

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diff -u --recursive --new-file v2.1.106/linux/drivers/net/sktr.h linux/drivers/net/sktr.h
@@ -0,0 +1,1098 @@
+/* sktr.h: SysKonnect TokenRing driver for Linux
+ *
+ * Authors:
+ * - Christoph Goos <cgoos@syskonnect.de>
+ */
+
+#ifndef __LINUX_SKTR_H
+#define __LINUX_SKTR_H
+
+#ifdef __KERNEL__
+
+#define SKTR_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 bytes of a word.                        */
+#define SWAPB(x) (((unsigned short)((x) << 8)) | ((unsigned short)((x) >> 8)))
+
+/* 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. */
+#define SIFDAT      		0L	/* SIF/DMA data. */
+#define SIFINC      		2L  	/* IO Word data with auto increment. */
+#define SIFINH      		3L  	/* IO Byte data with auto increment. */
+#define SIFADR      		4L  	/* SIF/DMA Address. */
+#define SIFCMD      		6L  	/* SIF Command. */
+#define SIFSTS      		6L  	/* SIF Status. */
+#define SIFACL      		8L  	/* SIF Adapter Control Register. */
+#define SIFADD      		10L 	/* SIF/DMA Address. */
+#define SIFADX      		12L
+#define DMALEN      		14L 	/* SIF DMA length. */
+#define POSREG      		16L 	/* 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.
+			 		 */
+
+
+/* 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_SPEED4		0x0003
+#define ACL_SPEED16		0x0001
+#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_SCB_CLEAR       0x0006  /* SCB clear, following an
+					 * SCB_REQUEST IRQ.
+					 */
+#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_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]: 32 bit 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 is (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. */
+	unsigned char CMD_Status_IV;	/* Interrupt vector: command status. */
+	unsigned char TX_IV;     	/* Interrupt vector: transmit. */
+	unsigned char RX_IV;     	/* Interrupt vector: receive. */
+	unsigned char Ring_Status_IV;	/* Interrupt vector: ring status. */
+	unsigned char SCB_Clear_IV;  	/* Interrupt vector: SCB clear. */
+	unsigned char Adapter_CHK_IV;	/* Interrupt vector: adapter check. */
+
+	unsigned short RX_Burst_Size;	/* Max. number of transfer cycles. */
+	unsigned short TX_Burst_Size;	/* During DMA burst; even value! */
+	unsigned short DMA_Abort_Thrhld; /* Number of DMA retries. */
+
+	unsigned long SCB_Addr;	/* SCB address: even, word aligned, high-low. */
+	unsigned long 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. (usefull 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.
+				  */
+
+#define ISA_MAX_ADDRESS 0x00ffffff
+
+#pragma pack(1)
+typedef struct {
+	unsigned short OPENOptions;
+	unsigned char NodeAddr[6];	/* Adapter node address; use ROM 
+					 * address
+					 */
+	unsigned long GroupAddr;	/* Multicast: high order
+					 * bytes = 0xC000
+					 */
+	unsigned long FunctAddr;	/* High order bytes = 0xC000 */
+	unsigned short RxListSize;	/* RPL size: 0 (=26), 14, 20 or
+					 * 26 bytes read by the adapter.
+					 * (Depending on the number of 
+					 * fragments/list)
+					 */
+	unsigned short TxListSize;	/* TPL size */
+	unsigned short BufSize;		/* Is automatically rounded up to the
+					 * nearest nK boundary.
+					 */
+	unsigned short FullDuplex;
+	unsigned short Reserved;
+	unsigned char TXBufMin;		/* Number of adapter buffers reserved
+					 * for transmission a minimum of 2
+					 * buffers must be allocated.
+					 */
+	unsigned char TXBufMax;		/* Maximum number of adapter buffers
+					 * for transmit; a minimum of 2 buffers
+					 * must be available for receive.
+					 * Default: 6
+					 */
+	unsigned short 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 {
+	unsigned short CMD;	/* Command code */
+	unsigned short 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 {
+	unsigned short STS;	/* Status code */
+	unsigned short 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 {
+	unsigned char Line_Error;	/* Line error: code violation in
+					 * frame or in a token, or FCS error.
+					 */
+	unsigned char Internal_Error;	/* IBM specific. (Reserved_1) */
+	unsigned char Burst_Error;
+	unsigned char ARI_FCI_Error;	/* ARI/FCI bit zero in AMP or
+					 * SMP MAC frame.
+					 */
+	unsigned char AbortDelimeters;	/* IBM specific. (Reserved_2) */
+	unsigned char Reserved_3;
+	unsigned char Lost_Frame_Error;	/* Receive of end of transmitted
+					 * frame failed.
+					 */
+	unsigned char Rx_Congest_Error;	/* Adapter in repeat mode has not
+					 * enough buffer space to copy incoming
+					 * frame.
+					 */
+	unsigned char Frame_Copied_Error;/* ARI bit not zero in frame
+					 * addressed to adapter.
+					 */
+	unsigned char Frequency_Error;	/* IBM specific. (Reserved_4) */
+	unsigned char Token_Error;	/* (active only in monitor station) */
+	unsigned char Reserved_5;
+	unsigned char DMA_Bus_Error;	/* DMA bus errors not exceeding the
+					 * abort thresholds.
+					 */
+	unsigned char 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 {
+	unsigned short 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.
+					 * (???)
+					 */
+	unsigned long 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)
+				 */
+#define MAX_TX_QUEUE	    10	/* Maximal number of skb's queued in driver. */
+
+/*
+ * 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) */
+	unsigned long NextTPLAddr;	/* Pointer to next TPL in chain; if
+					 * pointer is odd: this is the last
+					 * TPL. Pointing to itself can cause
+					 * problems!
+					 */
+	volatile unsigned short Status;	/* Initialized by the adapter:
+					 * CSTAT_REQUEST important: update least
+					 * significant bit first! Set by the
+					 * adapter: CSTAT_COMPLETE status.
+					 */
+	unsigned short 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? */
+};
+
+/* ---------------------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 */
+	unsigned long 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 unsigned short Status;	/* Set by creation of Receive Parameter
+					 * List RECEIVE_CSTAT_COMPLETE set by
+					 * adapter in lists that start or end
+					 * a frame.
+					 */
+	volatile unsigned short 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;
+};
+
+/* 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];
+
+	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 sk_buff_head SendSkbQueue;
+	unsigned short QueueSkb;
+
+	struct tr_statistics MacStat;	/* MAC statistics structure */
+
+	struct timer_list timer;
+
+	struct wait_queue *wait_for_tok_int;
+
+	INTPTRS intptrs;	/* Internal adapter pointer. Must be read
+				 * before OPEN command.
+				 */
+} NET_LOCAL;
+
+#endif	/* __KERNEL__ */
+#endif	/* __LINUX_SKTR_H */

FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov