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freebsd/sys/dev/fatm/if_fatmreg.h

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/*-
* Copyright (c) 2001-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Hartmut Brandt <harti@freebsd.org>
*
* $FreeBSD$
*
* Fore PCA200E hardware definitions.
*/
/*
* Fore implements some additional PCI registers. One of them is the
* master control register. One of the bits allow to automatically byte
* swap accesses to the on-board RAM.
*/
#define FATM_PCIR_MCTL 0x41
#define FATM_PCIM_SWAB 0x100
/*
* Operations codes for commands.
*/
enum {
FATM_OP_INITIALIZE = 0x01, /* Initialize the card */
FATM_OP_ACTIVATE_VCIN = 0x02, /* Start reassembly on a channel */
FATM_OP_ACTIVATE_VCOUT = 0x03, /* (not used) */
FATM_OP_DEACTIVATE_VCIN = 0x04, /* Stop reassembly on a channel */
FATM_OP_DEACTIVATE_VCOUT= 0x05, /* (not used) */
FATM_OP_REQUEST_STATS = 0x06, /* Get statistics */
FATM_OP_OC3_SET_REG = 0x07, /* Set OC3 chip register */
FATM_OP_OC3_GET_REG = 0x08, /* Get OC3 chip registers */
FATM_OP_ZERO_STATS = 0x09, /* Zero out statistics */
FATM_OP_GET_PROM_DATA = 0x0a, /* Return expansion ROM data */
FATM_OP_SETVPI_BITS = 0x0b, /* (not used, not implemented) */
FATM_OP_INTERRUPT_SEL = 0x80, /* Request interrupt on completion */
};
/*
* Status word definitions. Before initiating an operation the host sets the
* status word to PENDING. The card sets it to COMPLETE upon completion of
* the transmit/receive or command. An unused queue entry contains FREE.
* The ERROR can be ored into the COMPLETE. Note, that there are circumstances
* when ERROR is set without COMPLETE beeing set (when you try to activate
* a bad VCI like, for example, VCI 0).
*/
enum {
FATM_STAT_PENDING = 0x01,
FATM_STAT_COMPLETE = 0x02,
FATM_STAT_FREE = 0x04,
FATM_STAT_ERROR = 0x08,
};
/*
* On board queue offsets. There are two fundamentally different queue types:
* the command queue and all other queues. The command queue has 32 byte
* entries on the card which contain the operation code, parameters and the
* DMA pointer to the status word. All other queues have 8 byte entries, which
* contain a DMA pointer to the i/o block, that contains the parameters, and
* a DMA pointer to the status word.
*/
#define FATMOC_OP 0 /* cmd queue: offset to op code */
#define FATMOC_PARAM 4 /* cmd queue: offset to parameters */
#define FATMOC_STATP 16 /* cmd queue: offset to status ptr */
#define FATMOC_END 32 /* cmd queue: element size */
#define FATMOC_ACTIN_VPVC (FATMOC_PARAM + 0)
#define FATMOC_ACTIN_MTU (FATMOC_PARAM + 4)
#define FATMOC_DEACTIN_VPVC (FATMOC_PARAM + 0)
#define FATMOC_GETOC3_BUF (FATMOC_PARAM + 0)
#define FATMOC_GSTAT_BUF (FATMOC_PARAM + 0)
#define FATMOC_GPROM_BUF (FATMOC_PARAM + 0)
#define FATMOS_IOBLK 0 /* other queues: offset to ioblk ptr */
#define FATMOS_STATP 4 /* other queues: offset to status ptr */
#define FATM_MAKE_SETOC3(REG,VAL,MASK) \
(FATM_OP_OC3_SET_REG | (((REG) & 0xff) << 8) | \
(((VAL) & 0xff) << 16) | (((MASK) & 0xff) << 24))
#define FATM_NREGS 128
/*
* On board memory layout.
*
* The card contains up to 2MByte memory that is mapped at virtual offset 0.
* It is followed by three registers. The memory contains two areas at
* fixed addresses: the mon960 area that is used for communication with
* the card's operating system and the common block that is used by the
* firmware to communicate with the driver.
*/
#define FATM_RAM_SIZE (256 * 1024) /* normal RAM size */
#define FATMO_RAM (0x0) /* virtual RAM start */
#define FATMO_MON960 (0x400) /* mon960 communication area */
#define FATMO_COMMON_ORIGIN (0x4d40) /* firmware comm. area */
#define FATMO_HCR (0x100000) /* host control registers */
#define FATMO_HIMR (0x100004) /* host interrupt mask */
#define FATMO_PSR (0x100008) /* PCI control register */
#define FATMO_END (0x200000) /* end of mapped area */
/*
* The mon960 area contains two cells that are used as a virtual serial
* interface, a status word, the base for loading the application (i.e.
* firmware) and a version number.
*/
#define FATMO_UART_TO_960 (FATMO_MON960 + 0)
#define FATMO_UART_TO_HOST (FATMO_MON960 + 4)
#define FATMO_BOOT_STATUS (FATMO_MON960 + 8)
#define FATMO_APP_BASE (FATMO_MON960 + 12)
#define FATMO_VERSION (FATMO_MON960 + 16)
/*
* The host control register allows to hold the i960 or send it interrupts.
* The bits have different meaning on read and write.
*/
#define FATM_HCR_RESET 0x01 /* (W) reset the card */
#define FATM_HCR_LOCK_HOLD 0x02 /* (W) hold the i960 */
#define FATM_HCR_I960FAIL 0x04 /* (R) internal self-test failed */
#define FATM_HCR_INTR2 0x04 /* (W) assert i960 interrupt 2 */
#define FATM_HCR_HOLDA 0x08 /* (R) hold ack from i960 */
#define FATM_HCR_INTR1 0x08 /* (W) assert i960 interrupt 1 */
#define FATM_HCR_OFIFO 0x10 /* (R) DMA request FIFO full */
#define FATM_HCR_CLRIRQ 0x10 /* (W) clear interrupt request */
#define FATM_HCR_ESP_HOLD 0x20 /* (R) SAR chip holds i960 */
#define FATM_HCR_IFIFO 0x40 /* (R) input FIFO full */
#define FATM_HCR_TESTMODE 0x80 /* (R) board is in test mode */
/*
* The mon960 area contains a virtual UART and a status word.
* The UART uses a simple protocol: a zero means, that there is no
* character available from the i960 or that one can write the next
* character to the i960. This character has to be ored with 0x1000000
* to signal to the i960 that there is a new character.
* The cold_start values must be written to the status word, the others
* denote certain stages of initializing.
*/
#define XMIT_READY 0
#define CHAR_AVAIL 0x1000000
#define COLD_START 0xc01dc01d
#define SELF_TEST_OK 0x02201958
#define SELF_TEST_FAIL 0xadbadbad
#define CP_RUNNING 0xce11feed
#define MON906_TOO_BIG 0x10aded00
/*
* The firmware communication area contains a big structure most of which
* is used only during initialisation.
*/
/*
* These are the offsets to the onboard queues that are valid after the
* initialisation command has completed.
*/
#define FATMO_COMMAND_QUEUE (FATMO_COMMON_ORIGIN + 0)
#define FATMO_TRANSMIT_QUEUE (FATMO_COMMON_ORIGIN + 4)
#define FATMO_RECEIVE_QUEUE (FATMO_COMMON_ORIGIN + 8)
#define FATMO_SMALL_B1_QUEUE (FATMO_COMMON_ORIGIN + 12)
#define FATMO_LARGE_B1_QUEUE (FATMO_COMMON_ORIGIN + 16)
#define FATMO_SMALL_B2_QUEUE (FATMO_COMMON_ORIGIN + 20)
#define FATMO_LARGE_B2_QUEUE (FATMO_COMMON_ORIGIN + 24)
/*
* If the interrupt mask is set to 1, interrupts to the host are queued, but
* inhbited. The istat variable is set, when this card has posted an interrupt.
*/
#define FATMO_IMASK (FATMO_COMMON_ORIGIN + 28)
#define FATMO_ISTAT (FATMO_COMMON_ORIGIN + 32)
/*
* This is the offset and the size of the queue area. Could be used to
* dynamically compute queue sizes.
*/
#define FATMO_HEAP_BASE (FATMO_COMMON_ORIGIN + 36)
#define FATMO_HEAP_SIZE (FATMO_COMMON_ORIGIN + 40)
#define FATMO_HLOGGER (FATMO_COMMON_ORIGIN + 44)
/*
* The heartbeat variable is incremented in each loop of the normal processing.
* If it is stuck this means, that the card had a fatal error. In this case
* it may set the word to a number of values of the form 0xdeadXXXX where
* XXXX is an error code.
*/
#define FATMO_HEARTBEAT (FATMO_COMMON_ORIGIN + 48)
#define FATMO_FIRMWARE_RELEASE (FATMO_COMMON_ORIGIN + 52)
#define FATMO_MON960_RELEASE (FATMO_COMMON_ORIGIN + 56)
#define FATMO_TQ_PLEN (FATMO_COMMON_ORIGIN + 60)
/*
* At this offset the init command block is located. The init command cannot
* use the normal queue mechanism because it is used to initialize the
* queues. For this reason it is located at this fixed offset.
*/
#define FATMO_INIT (FATMO_COMMON_ORIGIN + 64)
/*
* physical media type
*/
#define FATMO_MEDIA_TYPE (FATMO_COMMON_ORIGIN + 176)
#define FATMO_OC3_REVISION (FATMO_COMMON_ORIGIN + 180)
/*
* End of the common block
*/
#define FATMO_COMMON_END (FATMO_COMMON_ORIGIN + 184)
/*
* The INITIALIZE command block. This is embedded into the above common
* block. The offsets are from the beginning of the command block.
*/
#define FATMOI_OP 0 /* operation code */
#define FATMOI_STATUS 4 /* status word */
#define FATMOI_RECEIVE_TRESHOLD 8 /* when to start interrupting */
#define FATMOI_NUM_CONNECT 12 /* max number of VCIs */
#define FATMOI_CQUEUE_LEN 16 /* length of command queue */
#define FATMOI_TQUEUE_LEN 20 /* length of transmit queue */
#define FATMOI_RQUEUE_LEN 24 /* length of receive queue */
#define FATMOI_RPD_EXTENSION 28 /* additional 32 byte blocks */
#define FATMOI_TPD_EXTENSION 32 /* additional 32 byte blocks */
#define FATMOI_CONLESS_VPVC 36 /* (not used) */
#define FATMOI_SMALL_B1 48 /* small buffer 1 pool */
#define FATMOI_LARGE_B1 64 /* small buffer 2 pool */
#define FATMOI_SMALL_B2 80 /* large buffer 1 pool */
#define FATMOI_LARGE_B2 96 /* large buffer 2 pool */
#define FATMOI_END 112 /* size of init block */
/*
* Each of the four buffer schemes is initialized with a block that
* contains four words:
*/
#define FATMOB_QUEUE_LENGTH 0 /* supply queue length */
#define FATMOB_BUFFER_SIZE 4 /* size of each buffer */
#define FATMOB_POOL_SIZE 8 /* size of on-board pool */
#define FATMOB_SUPPLY_BLKSIZE 12 /* number of buffers/supply */
/*
* The fore firmware is a binary file, that starts with a header. The
* header contains the offset to where the file must be loaded and the
* entry for execution. The header must also be loaded onto the card!
*/
struct firmware {
uint32_t id; /* "FORE" */
uint32_t version; /* firmware version */
uint32_t offset; /* load offset */
uint32_t entry; /* entry point */
};
#define FATM_FWID 0x65726f66 /* "FORE" */
#define FATM_FWVERSION 0x100 /* supported version */
/*
* PDUs to be transmitted are described by Transmit PDU Descriptors.
* These descriptors are held in host memory, but referenced from the ioblk
* member of the queue structure on the card. The card DMAs the descriptor
* and than gather-DMAs the PDU transmitting it on-the-fly. Tpds are variable
* length in blocks of 32 byte (8 words). The minimum length is one block,
* maximum 15. The number of blocks beyond 1 is configured during the
* initialisation command (tpd_extension).
* Each gather-DMA segment is described by a segment descriptor. The buffer
* address and the length must be a multiple of four.
* Tpd must also be 4 byte aligned.
* Because of the minimum length of 32 byte, the first blocks contains already
* 2 segement descriptors. Each extension block holds four descriptors.
*/
#define TXD_FIXED 2
#define SEGS_PER_BLOCK 4 /* segment descriptors per extension block */
struct txseg {
uint32_t buffer; /* DMA buffer address */
uint32_t length; /* and length */
};
struct tpd {
uint32_t atm_header; /* header for the transmitted cells */
uint32_t spec; /* PDU description */
uint32_t stream; /* traffic shaping word */
uint32_t pad[1];
struct txseg segment[TXD_FIXED];
};
#define TDX_MKSPEC(INTR,AAL,NSEG,LEN) \
(((INTR) << 28) | ((AAL) << 24) | ((NSEG) << 16) | (LEN))
#define TDX_MKSTR(DATA,IDLE) \
(((DATA) << 16) | (IDLE))
#define TDX_MKHDR(VPI,VCI,PT,CLP) \
(((VPI) << 20) | ((VCI) << 4) | ((PT) << 1) | (CLP))
#define TDX_SEGS2BLKS(SEGS) \
(1 + ((SEGS)-TXD_FIXED+SEGS_PER_BLOCK-1)/SEGS_PER_BLOCK)
/*
* We want probably support scatter transmission, so we use the maximum
* transmit descriptor extension that is possible. Because the size of the
* Tpd is encoded in 32-byte blocks in a 4-bit field, the maximum extension
* is 14 such blocks. The value for the init command is the number of
* additional descriptor entries NOT the number of 32 byte blocks.
*/
#define TPD_EXTENSION_BLOCKS 14
#define TPD_EXTENSIONS (TPD_EXTENSION_BLOCKS * 4)
#define TPD_SIZE ((size_t)((TPD_EXTENSION_BLOCKS+1) * 32))
/*
* Received PDUs are handed from the card to the host by means of Receive
* PDU descriptors. Each segment describes on part of the PDU. The buffer
* handle is a 32 bit value that is supplied by the host and passed
* transparently back to the host by the card. It is used to locate the buffer.
* The length field is the number of actual bytes in that buffer.
*/
#define RXD_FIXED 3
struct rxseg {
uint32_t handle; /* buffer handle */
uint32_t length; /* number of bytes */
};
struct rpd {
uint32_t atm_header;
uint32_t nseg;
struct rxseg segment[RXD_FIXED];
};
/*
* PDUs received are stored in buffers supplied to the card. We use only
* buffer scheme 1: small buffers are normal mbuf's which can hold three
* cells in their default size (256 byte) and mbuf clusters which can
* hold 42 cells (2 kbyte).
* The number of receive segments can be computed from these sizes:
*/
#define FATM_MAXPDU 65535
#define MAXPDU_CELLS ((FATM_MAXPDU+47)/48)
#define SMALL_BUFFER_CELLS (MHLEN/48)
#define LARGE_BUFFER_CELLS (MCLBYTES/48)
#define SMALL_BUFFER_LEN (SMALL_BUFFER_CELLS * 48)
#define LARGE_BUFFER_LEN (LARGE_BUFFER_CELLS * 48)
/*
* The card first alloctes a small buffer and the switches to large
* buffers. So the number of large buffers needed to store the maximum
* PDU is:
*/
#define MAX_LARGE_BUFFERS ((MAXPDU_CELLS - SMALL_BUFFER_CELLS \
+ LARGE_BUFFER_CELLS - 1) \
/ LARGE_BUFFER_CELLS) \
/*
* From this we get the number of extension blocks for the Rpds as:
*/
#define RPD_EXTENSION_BLOCKS ((MAX_LARGE_BUFFERS + 1 - RXD_FIXED \
+ SEGS_PER_BLOCK - 1) \
/ SEGS_PER_BLOCK)
#define RPD_EXTENSIONS (RPD_EXTENSION_BLOCKS * 4)
#define RPD_SIZE ((size_t)((RPD_EXTENSION_BLOCKS+1) * 32))
/*
* Buffers are supplied to the card prior receiving by the supply queues.
* We use two queues: scheme 1 small buffers and scheme 1 large buffers.
* The queues and on-card pools are initialized by the initialize command.
* Buffers are supplied in chunks. Each chunk can contain from 4 to 124
* buffers in multiples of four. The chunk sizes are configured by the
* initialize command. Each buffer in a chunk is described by a Receive
* Buffer Descriptor that is held in host memory and given as the ioblk
* to the card.
*/
#define BSUP_BLK2SIZE(CHUNK) (8 * (CHUNK))
struct rbd {
uint32_t handle;
uint32_t buffer; /* DMA address for card */
};
/*
* The PCA200E has an expansion ROM that contains version information and
* the FORE-assigned MAC address. It can be read via the get_prom_data
* operation.
*/
struct prom {
uint32_t version;
uint32_t serial;
uint8_t mac[8];
};
/*
* The media type member of the firmware communication block contains a
* code that describes the physical medium and physical protocol.
*/
#define FORE_MT_TAXI_100 0x04
#define FORE_MT_TAXI_140 0x05
#define FORE_MT_UTP_SONET 0x06
#define FORE_MT_MM_OC3_ST 0x16
#define FORE_MT_MM_OC3_SC 0x26
#define FORE_MT_SM_OC3_ST 0x36
#define FORE_MT_SM_OC3_SC 0x46
/*
* Assorted constants
*/
#define FORE_MAX_VCC 1024 /* max. number of VCIs supported */
#define FORE_VCIBITS 10
#define FATM_STATE_TIMEOUT 500 /* msec */
/*
* Statistics as delivered by the FORE cards
*/
struct fatm_stats {
struct {
uint32_t crc_header_errors;
uint32_t framing_errors;
uint32_t pad[2];
} phy_4b5b;
struct {
uint32_t section_bip8_errors;
uint32_t path_bip8_errors;
uint32_t line_bip24_errors;
uint32_t line_febe_errors;
uint32_t path_febe_errors;
uint32_t corr_hcs_errors;
uint32_t ucorr_hcs_errors;
uint32_t pad[1];
} phy_oc3;
struct {
uint32_t cells_transmitted;
uint32_t cells_received;
uint32_t vpi_bad_range;
uint32_t vpi_no_conn;
uint32_t vci_bad_range;
uint32_t vci_no_conn;
uint32_t pad[2];
} atm;
struct {
uint32_t cells_transmitted;
uint32_t cells_received;
uint32_t cells_dropped;
uint32_t pad[1];
} aal0;
struct {
uint32_t cells_transmitted;
uint32_t cells_received;
uint32_t cells_crc_errors;
uint32_t cels_protocol_errors;
uint32_t cells_dropped;
uint32_t cspdus_transmitted;
uint32_t cspdus_received;
uint32_t cspdus_protocol_errors;
uint32_t cspdus_dropped;
uint32_t pad[3];
} aal4;
struct {
uint32_t cells_transmitted;
uint32_t cells_received;
uint32_t congestion_experienced;
uint32_t cells_dropped;
uint32_t cspdus_transmitted;
uint32_t cspdus_received;
uint32_t cspdus_crc_errors;
uint32_t cspdus_protocol_errors;
uint32_t cspdus_dropped;
uint32_t pad[3];
} aal5;
struct {
uint32_t small_b1_failed;
uint32_t large_b1_failed;
uint32_t small_b2_failed;
uint32_t large_b2_failed;
uint32_t rpd_alloc_failed;
uint32_t receive_carrier;
uint32_t pad[2];
} aux;
};
#define FATM_NSTATS 42
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