| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 2639 | 92.47% | 14 | 58.33% |
| Chas Williams | 138 | 4.84% | 3 | 12.50% |
| Al Viro | 68 | 2.38% | 2 | 8.33% |
| Christoph Hellwig | 3 | 0.11% | 1 | 4.17% |
| Matthias Kaehlcke | 2 | 0.07% | 1 | 4.17% |
| Lucas De Marchi | 2 | 0.07% | 1 | 4.17% |
| Tom Fredrik Blenning Klaussen | 1 | 0.04% | 1 | 4.17% |
| Greg Kroah-Hartman | 1 | 0.04% | 1 | 4.17% |
| Total | 2854 | 24 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _FORE200E_H #define _FORE200E_H #ifdef __KERNEL__ /* 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 * 6) #define BUFFER_L1_NBR (RBD_BLK_SIZE * 4) #define BUFFER_S2_NBR (RBD_BLK_SIZE * 6) #define BUFFER_L2_NBR (RBD_BLK_SIZE * 4) #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 32 /* buffer supply queue capacity */ #define FORE200E_VPI_BITS 0 #define FORE200E_VCI_BITS 10 #define NBR_CONNECT (1 << (FORE200E_VPI_BITS + FORE200E_VCI_BITS)) /* number of 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; #define TPD_HADDR_SHIFT 5 /* addr aligned on 32 byte boundary */ /* 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 identifiers */ 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 { __be32 crc_header_errors; /* cells received with bad header CRC */ __be32 framing_errors; /* cells received with bad framing */ __be32 pad[ 2 ]; /* i960 padding */ } stats_phy_t; /* OC-3 statistics */ typedef struct stats_oc3 { __be32 section_bip8_errors; /* section 8 bit interleaved parity */ __be32 path_bip8_errors; /* path 8 bit interleaved parity */ __be32 line_bip24_errors; /* line 24 bit interleaved parity */ __be32 line_febe_errors; /* line far end block errors */ __be32 path_febe_errors; /* path far end block errors */ __be32 corr_hcs_errors; /* correctable header check sequence */ __be32 ucorr_hcs_errors; /* uncorrectable header check sequence */ __be32 pad[ 1 ]; /* i960 padding */ } stats_oc3_t; /* ATM statistics */ typedef struct stats_atm { __be32 cells_transmitted; /* cells transmitted */ __be32 cells_received; /* cells received */ __be32 vpi_bad_range; /* cell drops: VPI out of range */ __be32 vpi_no_conn; /* cell drops: no connection for VPI */ __be32 vci_bad_range; /* cell drops: VCI out of range */ __be32 vci_no_conn; /* cell drops: no connection for VCI */ __be32 pad[ 2 ]; /* i960 padding */ } stats_atm_t; /* AAL0 statistics */ typedef struct stats_aal0 { __be32 cells_transmitted; /* cells transmitted */ __be32 cells_received; /* cells received */ __be32 cells_dropped; /* cells dropped */ __be32 pad[ 1 ]; /* i960 padding */ } stats_aal0_t; /* AAL3/4 statistics */ typedef struct stats_aal34 { __be32 cells_transmitted; /* cells transmitted from segmented PDUs */ __be32 cells_received; /* cells reassembled into PDUs */ __be32 cells_crc_errors; /* payload CRC error count */ __be32 cells_protocol_errors; /* SAR or CS layer protocol errors */ __be32 cells_dropped; /* cells dropped: partial reassembly */ __be32 cspdus_transmitted; /* CS PDUs transmitted */ __be32 cspdus_received; /* CS PDUs received */ __be32 cspdus_protocol_errors; /* CS layer protocol errors */ __be32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */ __be32 pad[ 3 ]; /* i960 padding */ } stats_aal34_t; /* AAL5 statistics */ typedef struct stats_aal5 { __be32 cells_transmitted; /* cells transmitted from segmented SDUs */ __be32 cells_received; /* cells reassembled into SDUs */ __be32 cells_dropped; /* reassembled PDUs dropped (in cells) */ __be32 congestion_experienced; /* CRC error and length wrong */ __be32 cspdus_transmitted; /* CS PDUs transmitted */ __be32 cspdus_received; /* CS PDUs received */ __be32 cspdus_crc_errors; /* CS PDUs CRC errors */ __be32 cspdus_protocol_errors; /* CS layer protocol errors */ __be32 cspdus_dropped; /* reassembled PDUs dropped */ __be32 pad[ 3 ]; /* i960 padding */ } stats_aal5_t; /* auxiliary statistics */ typedef struct stats_aux { __be32 small_b1_failed; /* receive BD allocation failures */ __be32 large_b1_failed; /* receive BD allocation failures */ __be32 small_b2_failed; /* receive BD allocation failures */ __be32 large_b2_failed; /* receive BD allocation failures */ __be32 rpd_alloc_failed; /* receive PDU allocation failures */ __be32 receive_carrier; /* no carrier = 0, carrier = 1 */ __be32 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 __iomem *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 */ void* data; /* copy of misaligned data */ unsigned long incarn; /* vc_map incarnation when submitted for tx */ struct fore200e_vc_map* vc_map; } host_txq_entry_t; /* host resident receive queue entry */ typedef struct host_rxq_entry { struct cp_rxq_entry __iomem *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 __iomem *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 __iomem *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 */ dma_addr_t 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 */ #ifdef FORE200E_BSQ_DEBUG unsigned long index; /* buffer # in queue */ int supplied; /* 'buffer supplied' flag */ #endif } 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 */ int tail; /* tail 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 */ struct buffer* freebuf; /* list of free rx buffers */ volatile int freebuf_count; /* count of free rx buffers */ } host_bsq_t; /* header of the firmware image */ typedef struct fw_header { __le32 magic; /* magic number */ __le32 version; /* firmware version id */ __le32 load_offset; /* fw load offset in board memory */ __le32 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_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 __iomem * hcr; /* address of host control register */ volatile u32 __iomem * imr; /* address of host interrupt mask register */ volatile u32 __iomem * psr; /* address of PCI specific register */ } fore200e_pca_regs_t; /* SBA-200E registers */ typedef struct fore200e_sba_regs { u32 __iomem *hcr; /* address of host control register */ u32 __iomem *bsr; /* address of burst transfer size register */ u32 __iomem *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 */ u32 (*read)(volatile u32 __iomem *); void (*write)(u32, volatile u32 __iomem *); 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; /* vc mapping */ typedef struct fore200e_vc_map { struct atm_vcc* vcc; /* vcc entry */ unsigned long incarn; /* vcc incarnation number */ } fore200e_vc_map_t; #define FORE200E_VC_MAP(fore200e, vpi, vci) \ (& (fore200e)->vc_map[ ((vpi) << FORE200E_VCI_BITS) | (vci) ]) /* per-device data */ typedef struct fore200e { struct list_head entry; /* 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 */ struct device *dev; int irq; /* irq number */ unsigned long phys_base; /* physical base address */ void __iomem * virt_base; /* virtual base address */ unsigned char esi[ ESI_LEN ]; /* end system identifier */ struct cp_monitor __iomem * cp_monitor; /* i960 monitor address */ struct cp_queues __iomem * 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 mutex rate_mtx; /* protects rate reservation ops */ spinlock_t q_lock; /* protects queue ops */ #ifdef FORE200E_USE_TASKLET struct tasklet_struct tx_tasklet; /* performs tx interrupt work */ struct tasklet_struct rx_tasklet; /* performs rx interrupt work */ #endif unsigned long tx_sat; /* tx queue saturation count */ unsigned long incarn_count; struct fore200e_vc_map vc_map[ NBR_CONNECT ]; /* vc mapping */ } 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 */ unsigned long tx_pdu; /* nbr of tx pdus */ unsigned long rx_pdu; /* nbr of rx pdus */ } 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 / continuous 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 */
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