fore200e.h
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上传日期:2013-02-24
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- /* $Id: fore200e.h,v 1.4 2000/04/14 10:10:34 davem Exp $ */
- #ifndef _FORE200E_H
- #define _FORE200E_H
- #ifdef __KERNEL__
- #include <linux/config.h>
- /* rx buffer sizes */
- #define SMALL_BUFFER_SIZE 384 /* size of small buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
- #define LARGE_BUFFER_SIZE 4032 /* size of large buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
- #define RBD_BLK_SIZE 32 /* nbr of supplied rx buffers per rbd */
- #define MAX_PDU_SIZE 65535 /* maximum PDU size supported by AALs */
- #define BUFFER_S1_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 1 */
- #define BUFFER_L1_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 1 */
- #define BUFFER_S2_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 2 */
- #define BUFFER_L2_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 2 */
- #define BUFFER_S1_NBR (RBD_BLK_SIZE * 2)
- #define BUFFER_L1_NBR (RBD_BLK_SIZE * 2)
- #define BUFFER_S2_NBR (RBD_BLK_SIZE * 2)
- #define BUFFER_L2_NBR (RBD_BLK_SIZE * 2)
- #define QUEUE_SIZE_CMD 16 /* command queue capacity */
- #define QUEUE_SIZE_RX 64 /* receive queue capacity */
- #define QUEUE_SIZE_TX 256 /* transmit queue capacity */
- #define QUEUE_SIZE_BS 16 /* buffer supply queue capacity */
- #define NBR_CONNECT 1024 /* number of ATM connections */
- #define TSD_FIXED 2
- #define TSD_EXTENSION 0
- #define TSD_NBR (TSD_FIXED + TSD_EXTENSION)
- /* the cp starts putting a received PDU into one *small* buffer,
- then it uses a number of *large* buffers for the trailing data.
- we compute here the total number of receive segment descriptors
- required to hold the largest possible PDU */
- #define RSD_REQUIRED (((MAX_PDU_SIZE - SMALL_BUFFER_SIZE + LARGE_BUFFER_SIZE) / LARGE_BUFFER_SIZE) + 1)
- #define RSD_FIXED 3
- /* RSD_REQUIRED receive segment descriptors are enough to describe a max-sized PDU,
- but we have to keep the size of the receive PDU descriptor multiple of 32 bytes,
- so we add one extra RSD to RSD_EXTENSION
- (WARNING: THIS MAY CHANGE IF BUFFER SIZES ARE MODIFIED) */
- #define RSD_EXTENSION ((RSD_REQUIRED - RSD_FIXED) + 1)
- #define RSD_NBR (RSD_FIXED + RSD_EXTENSION)
- #define FORE200E_DEV(d) ((struct fore200e*)((d)->dev_data))
- #define FORE200E_VCC(d) ((struct fore200e_vcc*)((d)->dev_data))
- /* bitfields endian games */
- #if defined(__LITTLE_ENDIAN_BITFIELD)
- #define BITFIELD2(b1, b2) b1; b2;
- #define BITFIELD3(b1, b2, b3) b1; b2; b3;
- #define BITFIELD4(b1, b2, b3, b4) b1; b2; b3; b4;
- #define BITFIELD5(b1, b2, b3, b4, b5) b1; b2; b3; b4; b5;
- #define BITFIELD6(b1, b2, b3, b4, b5, b6) b1; b2; b3; b4; b5; b6;
- #elif defined(__BIG_ENDIAN_BITFIELD)
- #define BITFIELD2(b1, b2) b2; b1;
- #define BITFIELD3(b1, b2, b3) b3; b2; b1;
- #define BITFIELD4(b1, b2, b3, b4) b4; b3; b2; b1;
- #define BITFIELD5(b1, b2, b3, b4, b5) b5; b4; b3; b2; b1;
- #define BITFIELD6(b1, b2, b3, b4, b5, b6) b6; b5; b4; b3; b2; b1;
- #else
- #error unknown bitfield endianess
- #endif
-
- /* ATM cell header (minus HEC byte) */
- typedef struct atm_header {
- BITFIELD5(
- u32 clp : 1, /* cell loss priority */
- u32 plt : 3, /* payload type */
- u32 vci : 16, /* virtual channel identifier */
- u32 vpi : 8, /* virtual path identifier */
- u32 gfc : 4 /* generic flow control */
- )
- } atm_header_t;
- /* ATM adaptation layer id */
- typedef enum fore200e_aal {
- FORE200E_AAL0 = 0,
- FORE200E_AAL34 = 4,
- FORE200E_AAL5 = 5,
- } fore200e_aal_t;
- /* transmit PDU descriptor specification */
- typedef struct tpd_spec {
- BITFIELD4(
- u32 length : 16, /* total PDU length */
- u32 nseg : 8, /* number of transmit segments */
- enum fore200e_aal aal : 4, /* adaptation layer */
- u32 intr : 4 /* interrupt requested */
- )
- } tpd_spec_t;
- /* transmit PDU rate control */
- typedef struct tpd_rate
- {
- BITFIELD2(
- u32 idle_cells : 16, /* number of idle cells to insert */
- u32 data_cells : 16 /* number of data cells to transmit */
- )
- } tpd_rate_t;
- /* transmit segment descriptor */
- typedef struct tsd {
- u32 buffer; /* transmit buffer DMA address */
- u32 length; /* number of bytes in buffer */
- } tsd_t;
- /* transmit PDU descriptor */
- typedef struct tpd {
- struct atm_header atm_header; /* ATM header minus HEC byte */
- struct tpd_spec spec; /* tpd specification */
- struct tpd_rate rate; /* tpd rate control */
- u32 pad; /* reserved */
- struct tsd tsd[ TSD_NBR ]; /* transmit segment descriptors */
- } tpd_t;
- /* receive segment descriptor */
- typedef struct rsd {
- u32 handle; /* host supplied receive buffer handle */
- u32 length; /* number of bytes in buffer */
- } rsd_t;
- /* receive PDU descriptor */
- typedef struct rpd {
- struct atm_header atm_header; /* ATM header minus HEC byte */
- u32 nseg; /* number of receive segments */
- struct rsd rsd[ RSD_NBR ]; /* receive segment descriptors */
- } rpd_t;
- /* buffer scheme */
- typedef enum buffer_scheme {
- BUFFER_SCHEME_ONE,
- BUFFER_SCHEME_TWO,
- BUFFER_SCHEME_NBR /* always last */
- } buffer_scheme_t;
- /* buffer magnitude */
- typedef enum buffer_magn {
- BUFFER_MAGN_SMALL,
- BUFFER_MAGN_LARGE,
- BUFFER_MAGN_NBR /* always last */
- } buffer_magn_t;
- /* receive buffer descriptor */
- typedef struct rbd {
- u32 handle; /* host supplied handle */
- u32 buffer_haddr; /* host DMA address of host buffer */
- } rbd_t;
- /* receive buffer descriptor block */
- typedef struct rbd_block {
- struct rbd rbd[ RBD_BLK_SIZE ]; /* receive buffer descriptor */
- } rbd_block_t;
- /* tpd DMA address */
- typedef struct tpd_haddr {
- BITFIELD3(
- u32 size : 4, /* tpd size expressed in 32 byte blocks */
- u32 pad : 1, /* reserved */
- u32 haddr : 27 /* tpd DMA addr aligned on 32 byte boundary */
- )
- } tpd_haddr_t;
- /* cp resident transmit queue entry */
- typedef struct cp_txq_entry {
- struct tpd_haddr tpd_haddr; /* host DMA address of tpd */
- u32 status_haddr; /* host DMA address of completion status */
- } cp_txq_entry_t;
- /* cp resident receive queue entry */
- typedef struct cp_rxq_entry {
- u32 rpd_haddr; /* host DMA address of rpd */
- u32 status_haddr; /* host DMA address of completion status */
- } cp_rxq_entry_t;
- /* cp resident buffer supply queue entry */
- typedef struct cp_bsq_entry {
- u32 rbd_block_haddr; /* host DMA address of rbd block */
- u32 status_haddr; /* host DMA address of completion status */
- } cp_bsq_entry_t;
- /* completion status */
- typedef volatile enum status {
- STATUS_PENDING = (1<<0), /* initial status (written by host) */
- STATUS_COMPLETE = (1<<1), /* completion status (written by cp) */
- STATUS_FREE = (1<<2), /* initial status (written by host) */
- STATUS_ERROR = (1<<3) /* completion status (written by cp) */
- } status_t;
- /* cp operation code */
- typedef enum opcode {
- OPCODE_INITIALIZE = 1, /* initialize board */
- OPCODE_ACTIVATE_VCIN, /* activate incoming VCI */
- OPCODE_ACTIVATE_VCOUT, /* activate outgoing VCI */
- OPCODE_DEACTIVATE_VCIN, /* deactivate incoming VCI */
- OPCODE_DEACTIVATE_VCOUT, /* deactivate incoing VCI */
- OPCODE_GET_STATS, /* get board statistics */
- OPCODE_SET_OC3, /* set OC-3 registers */
- OPCODE_GET_OC3, /* get OC-3 registers */
- OPCODE_RESET_STATS, /* reset board statistics */
- OPCODE_GET_PROM, /* get expansion PROM data (PCI specific) */
- OPCODE_SET_VPI_BITS, /* set x bits of those decoded by the
- firmware to be low order bits from
- the VPI field of the ATM cell header */
- OPCODE_REQUEST_INTR = (1<<7) /* request interrupt */
- } opcode_t;
- /* virtual path / virtual channel identifers */
- typedef struct vpvc {
- BITFIELD3(
- u32 vci : 16, /* virtual channel identifier */
- u32 vpi : 8, /* virtual path identifier */
- u32 pad : 8 /* reserved */
- )
- } vpvc_t;
- /* activate VC command opcode */
- typedef struct activate_opcode {
- BITFIELD4(
- enum opcode opcode : 8, /* cp opcode */
- enum fore200e_aal aal : 8, /* adaptation layer */
- enum buffer_scheme scheme : 8, /* buffer scheme */
- u32 pad : 8 /* reserved */
- )
- } activate_opcode_t;
- /* activate VC command block */
- typedef struct activate_block {
- struct activate_opcode opcode; /* activate VC command opcode */
- struct vpvc vpvc; /* VPI/VCI */
- u32 mtu; /* for AAL0 only */
- } activate_block_t;
- /* deactivate VC command opcode */
- typedef struct deactivate_opcode {
- BITFIELD2(
- enum opcode opcode : 8, /* cp opcode */
- u32 pad : 24 /* reserved */
- )
- } deactivate_opcode_t;
- /* deactivate VC command block */
- typedef struct deactivate_block {
- struct deactivate_opcode opcode; /* deactivate VC command opcode */
- struct vpvc vpvc; /* VPI/VCI */
- } deactivate_block_t;
- /* OC-3 registers */
- typedef struct oc3_regs {
- u32 reg[ 128 ]; /* see the PMC Sierra PC5346 S/UNI-155-Lite
- Saturn User Network Interface documentation
- for a description of the OC-3 chip registers */
- } oc3_regs_t;
- /* set/get OC-3 regs command opcode */
- typedef struct oc3_opcode {
- BITFIELD4(
- enum opcode opcode : 8, /* cp opcode */
- u32 reg : 8, /* register index */
- u32 value : 8, /* register value */
- u32 mask : 8 /* register mask that specifies which
- bits of the register value field
- are significant */
- )
- } oc3_opcode_t;
- /* set/get OC-3 regs command block */
- typedef struct oc3_block {
- struct oc3_opcode opcode; /* set/get OC-3 regs command opcode */
- u32 regs_haddr; /* host DMA address of OC-3 regs buffer */
- } oc3_block_t;
- /* physical encoding statistics */
- typedef struct stats_phy {
- u32 crc_header_errors; /* cells received with bad header CRC */
- u32 framing_errors; /* cells received with bad framing */
- u32 pad[ 2 ]; /* i960 padding */
- } stats_phy_t;
- /* OC-3 statistics */
- typedef struct stats_oc3 {
- u32 section_bip8_errors; /* section 8 bit interleaved parity */
- u32 path_bip8_errors; /* path 8 bit interleaved parity */
- u32 line_bip24_errors; /* line 24 bit interleaved parity */
- u32 line_febe_errors; /* line far end block errors */
- u32 path_febe_errors; /* path far end block errors */
- u32 corr_hcs_errors; /* correctable header check sequence */
- u32 ucorr_hcs_errors; /* uncorrectable header check sequence */
- u32 pad[ 1 ]; /* i960 padding */
- } stats_oc3_t;
- /* ATM statistics */
- typedef struct stats_atm {
- u32 cells_transmitted; /* cells transmitted */
- u32 cells_received; /* cells received */
- u32 vpi_bad_range; /* cell drops: VPI out of range */
- u32 vpi_no_conn; /* cell drops: no connection for VPI */
- u32 vci_bad_range; /* cell drops: VCI out of range */
- u32 vci_no_conn; /* cell drops: no connection for VCI */
- u32 pad[ 2 ]; /* i960 padding */
- } stats_atm_t;
- /* AAL0 statistics */
- typedef struct stats_aal0 {
- u32 cells_transmitted; /* cells transmitted */
- u32 cells_received; /* cells received */
- u32 cells_dropped; /* cells dropped */
- u32 pad[ 1 ]; /* i960 padding */
- } stats_aal0_t;
- /* AAL3/4 statistics */
- typedef struct stats_aal34 {
- u32 cells_transmitted; /* cells transmitted from segmented PDUs */
- u32 cells_received; /* cells reassembled into PDUs */
- u32 cells_crc_errors; /* payload CRC error count */
- u32 cells_protocol_errors; /* SAR or CS layer protocol errors */
- u32 cells_dropped; /* cells dropped: partial reassembly */
- u32 cspdus_transmitted; /* CS PDUs transmitted */
- u32 cspdus_received; /* CS PDUs received */
- u32 cspdus_protocol_errors; /* CS layer protocol errors */
- u32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */
- u32 pad[ 3 ]; /* i960 padding */
- } stats_aal34_t;
- /* AAL5 statistics */
- typedef struct stats_aal5 {
- u32 cells_transmitted; /* cells transmitted from segmented SDUs */
- u32 cells_received; /* cells reassembled into SDUs */
- u32 cells_dropped; /* reassembled PDUs dropped (in cells) */
- u32 congestion_experienced; /* CRC error and length wrong */
- u32 cspdus_transmitted; /* CS PDUs transmitted */
- u32 cspdus_received; /* CS PDUs received */
- u32 cspdus_crc_errors; /* CS PDUs CRC errors */
- u32 cspdus_protocol_errors; /* CS layer protocol errors */
- u32 cspdus_dropped; /* reassembled PDUs dropped */
- u32 pad[ 3 ]; /* i960 padding */
- } stats_aal5_t;
- /* auxiliary statistics */
- typedef struct stats_aux {
- u32 small_b1_failed; /* receive BD allocation failures */
- u32 large_b1_failed; /* receive BD allocation failures */
- u32 small_b2_failed; /* receive BD allocation failures */
- u32 large_b2_failed; /* receive BD allocation failures */
- u32 rpd_alloc_failed; /* receive PDU allocation failures */
- u32 receive_carrier; /* no carrier = 0, carrier = 1 */
- u32 pad[ 2 ]; /* i960 padding */
- } stats_aux_t;
- /* whole statistics buffer */
- typedef struct stats {
- struct stats_phy phy; /* physical encoding statistics */
- struct stats_oc3 oc3; /* OC-3 statistics */
- struct stats_atm atm; /* ATM statistics */
- struct stats_aal0 aal0; /* AAL0 statistics */
- struct stats_aal34 aal34; /* AAL3/4 statistics */
- struct stats_aal5 aal5; /* AAL5 statistics */
- struct stats_aux aux; /* auxiliary statistics */
- } stats_t;
- /* get statistics command opcode */
- typedef struct stats_opcode {
- BITFIELD2(
- enum opcode opcode : 8, /* cp opcode */
- u32 pad : 24 /* reserved */
- )
- } stats_opcode_t;
- /* get statistics command block */
- typedef struct stats_block {
- struct stats_opcode opcode; /* get statistics command opcode */
- u32 stats_haddr; /* host DMA address of stats buffer */
- } stats_block_t;
- /* expansion PROM data (PCI specific) */
- typedef struct prom_data {
- u32 hw_revision; /* hardware revision */
- u32 serial_number; /* board serial number */
- u8 mac_addr[ 8 ]; /* board MAC address */
- } prom_data_t;
- /* get expansion PROM data command opcode */
- typedef struct prom_opcode {
- BITFIELD2(
- enum opcode opcode : 8, /* cp opcode */
- u32 pad : 24 /* reserved */
- )
- } prom_opcode_t;
- /* get expansion PROM data command block */
- typedef struct prom_block {
- struct prom_opcode opcode; /* get PROM data command opcode */
- u32 prom_haddr; /* host DMA address of PROM buffer */
- } prom_block_t;
- /* cp command */
- typedef union cmd {
- enum opcode opcode; /* operation code */
- struct activate_block activate_block; /* activate VC */
- struct deactivate_block deactivate_block; /* deactivate VC */
- struct stats_block stats_block; /* get statistics */
- struct prom_block prom_block; /* get expansion PROM data */
- struct oc3_block oc3_block; /* get/set OC-3 registers */
- u32 pad[ 4 ]; /* i960 padding */
- } cmd_t;
- /* cp resident command queue */
- typedef struct cp_cmdq_entry {
- union cmd cmd; /* command */
- u32 status_haddr; /* host DMA address of completion status */
- u32 pad[ 3 ]; /* i960 padding */
- } cp_cmdq_entry_t;
- /* host resident transmit queue entry */
- typedef struct host_txq_entry {
- struct cp_txq_entry* cp_entry; /* addr of cp resident tx queue entry */
- enum status* status; /* addr of host resident status */
- struct tpd* tpd; /* addr of transmit PDU descriptor */
- u32 tpd_dma; /* DMA address of tpd */
- struct sk_buff* skb; /* related skb */
- struct atm_vcc* vcc; /* related vcc */
- void* data; /* copy of misaligned data */
- } host_txq_entry_t;
- /* host resident receive queue entry */
- typedef struct host_rxq_entry {
- struct cp_rxq_entry* cp_entry; /* addr of cp resident rx queue entry */
- enum status* status; /* addr of host resident status */
- struct rpd* rpd; /* addr of receive PDU descriptor */
- u32 rpd_dma; /* DMA address of rpd */
- } host_rxq_entry_t;
- /* host resident buffer supply queue entry */
- typedef struct host_bsq_entry {
- struct cp_bsq_entry* cp_entry; /* addr of cp resident buffer supply queue entry */
- enum status* status; /* addr of host resident status */
- struct rbd_block* rbd_block; /* addr of receive buffer descriptor block */
- u32 rbd_block_dma; /* DMA address od rdb */
- } host_bsq_entry_t;
- /* host resident command queue entry */
- typedef struct host_cmdq_entry {
- struct cp_cmdq_entry* cp_entry; /* addr of cp resident cmd queue entry */
- enum status* status; /* addr of host resident status */
- } host_cmdq_entry_t;
- /* chunk of memory */
- typedef struct chunk {
- void* alloc_addr; /* base address of allocated chunk */
- void* align_addr; /* base address of aligned chunk */
- u32 dma_addr; /* DMA address of aligned chunk */
- int direction; /* direction of DMA mapping */
- u32 alloc_size; /* length of allocated chunk */
- u32 align_size; /* length of aligned chunk */
- } chunk_t;
- #define dma_size align_size /* DMA useable size */
- /* host resident receive buffer */
- typedef struct buffer {
- struct buffer* next; /* next receive buffer */
- enum buffer_scheme scheme; /* buffer scheme */
- enum buffer_magn magn; /* buffer magnitude */
- struct chunk data; /* data buffer */
- } buffer_t;
- #if (BITS_PER_LONG == 32)
- #define FORE200E_BUF2HDL(buffer) ((u32)(buffer))
- #define FORE200E_HDL2BUF(handle) ((struct buffer*)(handle))
- #else /* deal with 64 bit pointers */
- #define FORE200E_BUF2HDL(buffer) ((u32)((u64)(buffer)))
- #define FORE200E_HDL2BUF(handle) ((struct buffer*)(((u64)(handle)) | PAGE_OFFSET))
- #endif
- /* host resident command queue */
- typedef struct host_cmdq {
- struct host_cmdq_entry host_entry[ QUEUE_SIZE_CMD ]; /* host resident cmd queue entries */
- int head; /* head of cmd queue */
- struct chunk status; /* array of completion status */
- } host_cmdq_t;
- /* host resident transmit queue */
- typedef struct host_txq {
- struct host_txq_entry host_entry[ QUEUE_SIZE_TX ]; /* host resident tx queue entries */
- int head; /* head of tx queue */
- struct chunk tpd; /* array of tpds */
- struct chunk status; /* arry of completion status */
- int txing; /* number of pending PDUs in tx queue */
- } host_txq_t;
- /* host resident receive queue */
- typedef struct host_rxq {
- struct host_rxq_entry host_entry[ QUEUE_SIZE_RX ]; /* host resident rx queue entries */
- int head; /* head of rx queue */
- struct chunk rpd; /* array of rpds */
- struct chunk status; /* array of completion status */
- } host_rxq_t;
- /* host resident buffer supply queues */
- typedef struct host_bsq {
- struct host_bsq_entry host_entry[ QUEUE_SIZE_BS ]; /* host resident buffer supply queue entries */
- int head; /* head of buffer supply queue */
- struct chunk rbd_block; /* array of rbds */
- struct chunk status; /* array of completion status */
- struct buffer* buffer; /* array of rx buffers */
- int free; /* index of first free rx buffer */
- volatile int count; /* count of supplied rx buffers */
- } host_bsq_t;
- /* header of the firmware image */
- typedef struct fw_header {
- u32 magic; /* magic number */
- u32 version; /* firware version id */
- u32 load_offset; /* fw load offset in board memory */
- u32 start_offset; /* fw execution start address in board memory */
- } fw_header_t;
- #define FW_HEADER_MAGIC 0x65726f66 /* 'fore' */
- /* receive buffer supply queues scheme specification */
- typedef struct bs_spec {
- u32 queue_length; /* queue capacity */
- u32 buffer_size; /* host buffer size */
- u32 pool_size; /* number of rbds */
- u32 supply_blksize; /* num of rbds in I/O block (multiple
- of 4 between 4 and 124 inclusive) */
- } bs_spec_t;
- /* initialization command block (one-time command, not in cmd queue) */
- typedef struct init_block {
- enum opcode opcode; /* initialize command */
- enum status status; /* related status word */
- u32 receive_threshold; /* not used */
- u32 num_connect; /* ATM connections */
- u32 cmd_queue_len; /* length of command queue */
- u32 tx_queue_len; /* length of transmit queue */
- u32 rx_queue_len; /* length of receive queue */
- u32 rsd_extension; /* number of extra 32 byte blocks */
- u32 tsd_extension; /* number of extra 32 byte blocks */
- u32 conless_vpvc; /* not used */
- u32 pad[ 2 ]; /* force quad alignment */
- struct bs_spec bs_spec[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues spec */
- } init_block_t;
- typedef enum media_type {
- MEDIA_TYPE_CAT5_UTP = 0x06, /* unshielded twisted pair */
- MEDIA_TYPE_MM_OC3_ST = 0x16, /* multimode fiber ST */
- MEDIA_TYPE_MM_OC3_SC = 0x26, /* multimode fiber SC */
- MEDIA_TYPE_SM_OC3_ST = 0x36, /* single-mode fiber ST */
- MEDIA_TYPE_SM_OC3_SC = 0x46 /* single-mode fiber SC */
- } media_type_t;
- #define FORE200E_MEDIA_INDEX(media_type) ((media_type)>>4)
- /* cp resident queues */
- typedef struct cp_queues {
- u32 cp_cmdq; /* command queue */
- u32 cp_txq; /* transmit queue */
- u32 cp_rxq; /* receive queue */
- u32 cp_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues */
- u32 imask; /* 1 enables cp to host interrupts */
- u32 istat; /* 1 for interrupt posted */
- u32 heap_base; /* offset form beginning of ram */
- u32 heap_size; /* space available for queues */
- u32 hlogger; /* non zero for host logging */
- u32 heartbeat; /* cp heartbeat */
- u32 fw_release; /* firmware version */
- u32 mon960_release; /* i960 monitor version */
- u32 tq_plen; /* transmit throughput measurements */
- /* make sure the init block remains on a quad word boundary */
- struct init_block init; /* one time cmd, not in cmd queue */
- enum media_type media_type; /* media type id */
- u32 oc3_revision; /* OC-3 revision number */
- } cp_queues_t;
- /* boot status */
- typedef enum boot_status {
- BSTAT_COLD_START = (u32) 0xc01dc01d, /* cold start */
- BSTAT_SELFTEST_OK = (u32) 0x02201958, /* self-test ok */
- BSTAT_SELFTEST_FAIL = (u32) 0xadbadbad, /* self-test failed */
- BSTAT_CP_RUNNING = (u32) 0xce11feed, /* cp is running */
- BSTAT_MON_TOO_BIG = (u32) 0x10aded00 /* i960 monitor is too big */
- } boot_status_t;
- /* software UART */
- typedef struct soft_uart {
- u32 send; /* write register */
- u32 recv; /* read register */
- } soft_uart_t;
- #define FORE200E_CP_MONITOR_UART_FREE 0x00000000
- #define FORE200E_CP_MONITOR_UART_AVAIL 0x01000000
- /* i960 monitor */
- typedef struct cp_monitor {
- struct soft_uart soft_uart; /* software UART */
- enum boot_status bstat; /* boot status */
- u32 app_base; /* application base offset */
- u32 mon_version; /* i960 monitor version */
- } cp_monitor_t;
- /* device state */
- typedef enum fore200e_state {
- FORE200E_STATE_BLANK, /* initial state */
- FORE200E_STATE_REGISTER, /* device registered */
- FORE200E_STATE_CONFIGURE, /* bus interface configured */
- FORE200E_STATE_MAP, /* board space mapped in host memory */
- FORE200E_STATE_RESET, /* board resetted */
- FORE200E_STATE_LOAD_FW, /* firmware loaded */
- FORE200E_STATE_START_FW, /* firmware started */
- FORE200E_STATE_INITIALIZE, /* initialize command successful */
- FORE200E_STATE_INIT_CMDQ, /* command queue initialized */
- FORE200E_STATE_INIT_TXQ, /* transmit queue initialized */
- FORE200E_STATE_INIT_RXQ, /* receive queue initialized */
- FORE200E_STATE_INIT_BSQ, /* buffer supply queue initialized */
- FORE200E_STATE_ALLOC_BUF, /* receive buffers allocated */
- FORE200E_STATE_IRQ, /* host interrupt requested */
- FORE200E_STATE_COMPLETE /* initialization completed */
- } fore200e_state;
- /* PCA-200E registers */
- typedef struct fore200e_pca_regs {
- volatile u32* hcr; /* address of host control register */
- volatile u32* imr; /* address of host interrupt mask register */
- volatile u32* psr; /* address of PCI specific register */
- } fore200e_pca_regs_t;
- /* SBA-200E registers */
- typedef struct fore200e_sba_regs {
- volatile u32* hcr; /* address of host control register */
- volatile u32* bsr; /* address of burst transfer size register */
- volatile u32* isr; /* address of interrupt level selection register */
- } fore200e_sba_regs_t;
- /* model-specific registers */
- typedef union fore200e_regs {
- struct fore200e_pca_regs pca; /* PCA-200E registers */
- struct fore200e_sba_regs sba; /* SBA-200E registers */
- } fore200e_regs;
- struct fore200e;
- /* bus-dependent data */
- typedef struct fore200e_bus {
- char* model_name; /* board model name */
- char* proc_name; /* board name under /proc/atm */
- int descr_alignment; /* tpd/rpd/rbd DMA alignment requirement */
- int buffer_alignment; /* rx buffers DMA alignment requirement */
- int status_alignment; /* status words DMA alignment requirement */
- const unsigned char* fw_data; /* address of firmware data start */
- const unsigned int* fw_size; /* address of firmware data size */
- u32 (*read)(volatile u32*);
- void (*write)(u32, volatile u32*);
- u32 (*dma_map)(struct fore200e*, void*, int, int);
- void (*dma_unmap)(struct fore200e*, u32, int, int);
- void (*dma_sync)(struct fore200e*, u32, int, int);
- int (*dma_chunk_alloc)(struct fore200e*, struct chunk*, int, int, int);
- void (*dma_chunk_free)(struct fore200e*, struct chunk*);
- struct fore200e* (*detect)(const struct fore200e_bus*, int);
- int (*configure)(struct fore200e*);
- int (*map)(struct fore200e*);
- void (*reset)(struct fore200e*);
- int (*prom_read)(struct fore200e*, struct prom_data*);
- void (*unmap)(struct fore200e*);
- void (*irq_enable)(struct fore200e*);
- int (*irq_check)(struct fore200e*);
- void (*irq_ack)(struct fore200e*);
- int (*proc_read)(struct fore200e*, char*);
- } fore200e_bus_t;
- #if defined(CONFIG_ATM_FORE200E_SBA)
- # if defined(CONFIG_ATM_FORE200E_PCA)
- # if (PCI_DMA_BIDIRECTIONAL == SBUS_DMA_BIDIRECTIONAL) &&
- (PCI_DMA_TODEVICE == SBUS_DMA_TODEVICE) &&
- (PCI_DMA_FROMDEVICE == SBUS_DMA_FROMDEVICE)
- # define FORE200E_DMA_BIDIRECTIONAL PCI_DMA_BIDIRECTIONAL
- # define FORE200E_DMA_TODEVICE PCI_DMA_TODEVICE
- # define FORE200E_DMA_FROMDEVICE PCI_DMA_FROMDEVICE
- # else
- /* in that case, we'll need to add an extra indirection, e.g.
- fore200e->bus->dma_direction[ fore200e_dma_direction ] */
- # error PCI and SBUS DMA direction flags have different values!
- # endif
- # else
- # define FORE200E_DMA_BIDIRECTIONAL SBUS_DMA_BIDIRECTIONAL
- # define FORE200E_DMA_TODEVICE SBUS_DMA_TODEVICE
- # define FORE200E_DMA_FROMDEVICE SBUS_DMA_FROMDEVICE
- # endif
- #else
- # ifndef CONFIG_ATM_FORE200E_PCA
- # warning compiling the fore200e driver without any hardware support enabled!
- # include <linux/pci.h>
- # endif
- # define FORE200E_DMA_BIDIRECTIONAL PCI_DMA_BIDIRECTIONAL
- # define FORE200E_DMA_TODEVICE PCI_DMA_TODEVICE
- # define FORE200E_DMA_FROMDEVICE PCI_DMA_FROMDEVICE
- #endif
- /* per-device data */
- typedef struct fore200e {
- struct fore200e* next; /* next device */
- const struct fore200e_bus* bus; /* bus-dependent code and data */
- union fore200e_regs regs; /* bus-dependent registers */
- struct atm_dev* atm_dev; /* ATM device */
- enum fore200e_state state; /* device state */
- char name[16]; /* device name */
- void* bus_dev; /* bus-specific kernel data */
- int irq; /* irq number */
- unsigned long phys_base; /* physical base address */
- void* virt_base; /* virtual base address */
-
- unsigned char esi[ ESI_LEN ]; /* end system identifier */
- struct cp_monitor* cp_monitor; /* i960 monitor address */
- struct cp_queues* cp_queues; /* cp resident queues */
- struct host_cmdq host_cmdq; /* host resident cmd queue */
- struct host_txq host_txq; /* host resident tx queue */
- struct host_rxq host_rxq; /* host resident rx queue */
- /* host resident buffer supply queues */
- struct host_bsq host_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ];
- u32 available_cell_rate; /* remaining pseudo-CBR bw on link */
- int loop_mode; /* S/UNI loopback mode */
- struct stats* stats; /* last snapshot of the stats */
-
- struct semaphore rate_sf; /* protects rate reservation ops */
- struct tasklet_struct tasklet; /* performs interrupt work */
- } fore200e_t;
- /* per-vcc data */
- typedef struct fore200e_vcc {
- enum buffer_scheme scheme; /* rx buffer scheme */
- struct tpd_rate rate; /* tx rate control data */
- int rx_min_pdu; /* size of smallest PDU received */
- int rx_max_pdu; /* size of largest PDU received */
- int tx_min_pdu; /* size of smallest PDU transmitted */
- int tx_max_pdu; /* size of largest PDU transmitted */
- } fore200e_vcc_t;
- /* 200E-series common memory layout */
- #define FORE200E_CP_MONITOR_OFFSET 0x00000400 /* i960 monitor interface */
- #define FORE200E_CP_QUEUES_OFFSET 0x00004d40 /* cp resident queues */
- /* PCA-200E memory layout */
- #define PCA200E_IOSPACE_LENGTH 0x00200000
- #define PCA200E_HCR_OFFSET 0x00100000 /* board control register */
- #define PCA200E_IMR_OFFSET 0x00100004 /* host IRQ mask register */
- #define PCA200E_PSR_OFFSET 0x00100008 /* PCI specific register */
- /* PCA-200E host control register */
- #define PCA200E_HCR_RESET (1<<0) /* read / write */
- #define PCA200E_HCR_HOLD_LOCK (1<<1) /* read / write */
- #define PCA200E_HCR_I960FAIL (1<<2) /* read */
- #define PCA200E_HCR_INTRB (1<<2) /* write */
- #define PCA200E_HCR_HOLD_ACK (1<<3) /* read */
- #define PCA200E_HCR_INTRA (1<<3) /* write */
- #define PCA200E_HCR_OUTFULL (1<<4) /* read */
- #define PCA200E_HCR_CLRINTR (1<<4) /* write */
- #define PCA200E_HCR_ESPHOLD (1<<5) /* read */
- #define PCA200E_HCR_INFULL (1<<6) /* read */
- #define PCA200E_HCR_TESTMODE (1<<7) /* read */
- /* PCA-200E PCI bus interface regs (offsets in PCI config space) */
- #define PCA200E_PCI_LATENCY 0x40 /* maximum slave latenty */
- #define PCA200E_PCI_MASTER_CTRL 0x41 /* master control */
- #define PCA200E_PCI_THRESHOLD 0x42 /* burst / continous req threshold */
- /* PBI master control register */
- #define PCA200E_CTRL_DIS_CACHE_RD (1<<0) /* disable cache-line reads */
- #define PCA200E_CTRL_DIS_WRT_INVAL (1<<1) /* disable writes and invalidates */
- #define PCA200E_CTRL_2_CACHE_WRT_INVAL (1<<2) /* require 2 cache-lines for writes and invalidates */
- #define PCA200E_CTRL_IGN_LAT_TIMER (1<<3) /* ignore the latency timer */
- #define PCA200E_CTRL_ENA_CONT_REQ_MODE (1<<4) /* enable continuous request mode */
- #define PCA200E_CTRL_LARGE_PCI_BURSTS (1<<5) /* force large PCI bus bursts */
- #define PCA200E_CTRL_CONVERT_ENDIAN (1<<6) /* convert endianess of slave RAM accesses */
- #define SBA200E_PROM_NAME "FORE,sba-200e" /* device name in openprom tree */
- /* size of SBA-200E registers */
- #define SBA200E_HCR_LENGTH 4
- #define SBA200E_BSR_LENGTH 4
- #define SBA200E_ISR_LENGTH 4
- #define SBA200E_RAM_LENGTH 0x40000
- /* SBA-200E SBUS burst transfer size register */
- #define SBA200E_BSR_BURST4 0x04
- #define SBA200E_BSR_BURST8 0x08
- #define SBA200E_BSR_BURST16 0x10
- /* SBA-200E host control register */
- #define SBA200E_HCR_RESET (1<<0) /* read / write (sticky) */
- #define SBA200E_HCR_HOLD_LOCK (1<<1) /* read / write (sticky) */
- #define SBA200E_HCR_I960FAIL (1<<2) /* read */
- #define SBA200E_HCR_I960SETINTR (1<<2) /* write */
- #define SBA200E_HCR_OUTFULL (1<<3) /* read */
- #define SBA200E_HCR_INTR_CLR (1<<3) /* write */
- #define SBA200E_HCR_INTR_ENA (1<<4) /* read / write (sticky) */
- #define SBA200E_HCR_ESPHOLD (1<<5) /* read */
- #define SBA200E_HCR_INFULL (1<<6) /* read */
- #define SBA200E_HCR_TESTMODE (1<<7) /* read */
- #define SBA200E_HCR_INTR_REQ (1<<8) /* read */
- #define SBA200E_HCR_STICKY (SBA200E_HCR_RESET | SBA200E_HCR_HOLD_LOCK | SBA200E_HCR_INTR_ENA)
- #endif /* __KERNEL__ */
- #endif /* _FORE200E_H */