/* SPDX-License-Identifier: GPL-2.0 */
/*
* nicstar . h
*
* Header file for the nicstar device driver .
*
* Author : Rui Prior ( rprior @ inescn . pt )
* PowerPC support by Jay Talbott ( jay_talbott @ mcg . mot . com ) April 1999
*
* ( C ) INESC 1998
*/
#ifndef _LINUX_NICSTAR_H_
#define _LINUX_NICSTAR_H_
/* Includes */
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/idr.h>
#include <linux/uio.h>
#include <linux/skbuff.h>
#include <linux/atmdev.h>
#include <linux/atm_nicstar.h>
/* Options */
#define NS_MAX_CARDS 4 /* Maximum number of NICStAR based cards
controlled by the device driver . Must
be <= 5 */
#undef RCQ_SUPPORT /* Do not define this for now */
#define NS_TST_NUM_ENTRIES 2340 /* + 1 for return */
#define NS_TST_RESERVED 340 /* N. entries reserved for UBR/ABR/VBR */
#define NS_SMBUFSIZE 48 /* 48, 96, 240 or 2048 */
#define NS_LGBUFSIZE 16384 /* 2048, 4096, 8192 or 16384 */
#define NS_RSQSIZE 8192 /* 2048, 4096 or 8192 */
#define NS_VPIBITS 2 /* 0, 1, 2, or 8 */
#define NS_MAX_RCTSIZE 4096 /* Number of entries. 4096 or 16384.
Define 4096 only if ( all ) your card ( s )
have 32 K x 32 bit SRAM , in which case
setting this to 16384 will just waste a
lot of memory .
Setting this to 4096 for a card with
128 K x 32 bit SRAM will limit the maximum
VCI. */
/*#define NS_PCI_LATENCY 64*//* Must be a multiple of 32 */
/* Number of buffers initially allocated */
#define NUM_SB 32 /* Must be even */
#define NUM_LB 24 /* Must be even */
#define NUM_HB 8 /* Pre-allocated huge buffers */
#define NUM_IOVB 48 /* Iovec buffers */
/* Lower level for count of buffers */
#define MIN_SB 8 /* Must be even */
#define MIN_LB 8 /* Must be even */
#define MIN_HB 6
#define MIN_IOVB 8
/* Upper level for count of buffers */
#define MAX_SB 64 /* Must be even, <= 508 */
#define MAX_LB 48 /* Must be even, <= 508 */
#define MAX_HB 10
#define MAX_IOVB 80
/* These are the absolute maximum allowed for the ioctl() */
#define TOP_SB 256 /* Must be even, <= 508 */
#define TOP_LB 128 /* Must be even, <= 508 */
#define TOP_HB 64
#define TOP_IOVB 256
#define MAX_TBD_PER_VC 1 /* Number of TBDs before a TSR */
#define MAX_TBD_PER_SCQ 10 /* Only meaningful for variable rate SCQs */
#undef ENABLE_TSQFIE
#define SCQFULL_TIMEOUT (5 * HZ)
#define NS_POLL_PERIOD (HZ)
#define PCR_TOLERANCE (1 .0001 )
/* ESI stuff */
#define NICSTAR_EPROM_MAC_ADDR_OFFSET 0 x6C
#define NICSTAR_EPROM_MAC_ADDR_OFFSET_ALT 0 xF6
/* #defines */
#define NS_IOREMAP_SIZE 4096
/*
* BUF_XX distinguish the Rx buffers depending on their ( small / large ) size .
* BUG_SM and BUG_LG are both used by the driver and the device .
* BUF_NONE is only used by the driver .
*/
#define BUF_SM 0 x00000000 /* These two are used for push_rxbufs() */
#define BUF_LG 0 x00000001 /* CMD, Write_FreeBufQ, LBUF bit */
#define BUF_NONE 0 xffffffff /* Software only: */
#define NS_HBUFSIZE 65568 /* Size of max. AAL5 PDU */
#define NS_MAX_IOVECS (2 + (65568 - NS_SMBUFSIZE) / \
(NS_LGBUFSIZE - (NS_LGBUFSIZE % 48 )))
#define NS_IOVBUFSIZE (NS_MAX_IOVECS * (sizeof (struct iovec)))
#define NS_SMBUFSIZE_USABLE (NS_SMBUFSIZE - NS_SMBUFSIZE % 48 )
#define NS_LGBUFSIZE_USABLE (NS_LGBUFSIZE - NS_LGBUFSIZE % 48 )
#define NS_AAL0_HEADER (ATM_AAL0_SDU - ATM_CELL_PAYLOAD) /* 4 bytes */
#define NS_SMSKBSIZE (NS_SMBUFSIZE + NS_AAL0_HEADER)
#define NS_LGSKBSIZE (NS_SMBUFSIZE + NS_LGBUFSIZE)
/* NICStAR structures located in host memory */
/*
* RSQ - Receive Status Queue
*
* Written by the NICStAR , read by the device driver .
*/
typedef struct ns_rsqe {
u32 word_1;
u32 buffer_handle;
u32 final_aal5_crc32;
u32 word_4;
} ns_rsqe;
#define ns_rsqe_vpi(ns_rsqep) \
((le32_to_cpu((ns_rsqep)->word_1) & 0 x00FF0000) >> 16 )
#define ns_rsqe_vci(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_1) & 0 x0000FFFF)
#define NS_RSQE_VALID 0 x80000000
#define NS_RSQE_NZGFC 0 x00004000
#define NS_RSQE_EOPDU 0 x00002000
#define NS_RSQE_BUFSIZE 0 x00001000
#define NS_RSQE_CONGESTION 0 x00000800
#define NS_RSQE_CLP 0 x00000400
#define NS_RSQE_CRCERR 0 x00000200
#define NS_RSQE_BUFSIZE_SM 0 x00000000
#define NS_RSQE_BUFSIZE_LG 0 x00001000
#define ns_rsqe_valid(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_VALID)
#define ns_rsqe_nzgfc(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_NZGFC)
#define ns_rsqe_eopdu(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_EOPDU)
#define ns_rsqe_bufsize(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_BUFSIZE)
#define ns_rsqe_congestion(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_CONGESTION)
#define ns_rsqe_clp(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_CLP)
#define ns_rsqe_crcerr(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & NS_RSQE_CRCERR)
#define ns_rsqe_cellcount(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & 0 x000001FF)
#define ns_rsqe_init(ns_rsqep) \
((ns_rsqep)->word_4 = cpu_to_le32(0 x00000000))
#define NS_RSQ_NUM_ENTRIES (NS_RSQSIZE / 16 )
#define NS_RSQ_ALIGNMENT NS_RSQSIZE
/*
* RCQ - Raw Cell Queue
*
* Written by the NICStAR , read by the device driver .
*/
typedef struct cell_payload {
u32 word[12 ];
} cell_payload;
typedef struct ns_rcqe {
u32 word_1;
u32 word_2;
u32 word_3;
u32 word_4;
cell_payload payload;
} ns_rcqe;
#define NS_RCQE_SIZE 64 /* bytes */
#define ns_rcqe_islast(ns_rcqep) \
(le32_to_cpu((ns_rcqep)->word_2) != 0 x00000000)
#define ns_rcqe_cellheader(ns_rcqep) \
(le32_to_cpu((ns_rcqep)->word_1))
#define ns_rcqe_nextbufhandle(ns_rcqep) \
(le32_to_cpu((ns_rcqep)->word_2))
/*
* SCQ - Segmentation Channel Queue
*
* Written by the device driver , read by the NICStAR .
*/
typedef struct ns_scqe {
u32 word_1;
u32 word_2;
u32 word_3;
u32 word_4;
} ns_scqe;
/* NOTE: SCQ entries can be either a TBD (Transmit Buffer Descriptors)
or TSR (Transmit Status Requests) */
#define NS_SCQE_TYPE_TBD 0 x00000000
#define NS_SCQE_TYPE_TSR 0 x80000000
#define NS_TBD_EOPDU 0 x40000000
#define NS_TBD_AAL0 0 x00000000
#define NS_TBD_AAL34 0 x04000000
#define NS_TBD_AAL5 0 x08000000
#define NS_TBD_VPI_MASK 0 x0FF00000
#define NS_TBD_VCI_MASK 0 x000FFFF0
#define NS_TBD_VC_MASK (NS_TBD_VPI_MASK | NS_TBD_VCI_MASK)
#define NS_TBD_VPI_SHIFT 20
#define NS_TBD_VCI_SHIFT 4
#define ns_tbd_mkword_1(flags, m, n, buflen) \
(cpu_to_le32((flags) | (m) << 23 | (n) << 16 | (buflen)))
#define ns_tbd_mkword_1_novbr(flags, buflen) \
(cpu_to_le32((flags) | (buflen) | 0 x00810000))
#define ns_tbd_mkword_3(control, pdulen) \
(cpu_to_le32((control) << 16 | (pdulen)))
#define ns_tbd_mkword_4(gfc, vpi, vci, pt, clp) \
(cpu_to_le32((gfc) << 28 | (vpi) << 20 | (vci) << 4 | (pt) << 1 | (clp)))
#define NS_TSR_INTENABLE 0 x20000000
#define NS_TSR_SCDISVBR 0 xFFFF /* Use as scdi for VBR SCD */
#define ns_tsr_mkword_1(flags) \
(cpu_to_le32(NS_SCQE_TYPE_TSR | (flags)))
#define ns_tsr_mkword_2(scdi, scqi) \
(cpu_to_le32((scdi) << 16 | 0 x00008000 | (scqi)))
#define ns_scqe_is_tsr(ns_scqep) \
(le32_to_cpu((ns_scqep)->word_1) & NS_SCQE_TYPE_TSR)
#define VBR_SCQ_NUM_ENTRIES 512
#define VBR_SCQSIZE 8192
#define CBR_SCQ_NUM_ENTRIES 64
#define CBR_SCQSIZE 1024
#define NS_SCQE_SIZE 16
/*
* TSQ - Transmit Status Queue
*
* Written by the NICStAR , read by the device driver .
*/
typedef struct ns_tsi {
u32 word_1;
u32 word_2;
} ns_tsi;
/* NOTE: The first word can be a status word copied from the TSR which
originated the TSI , or a timer overflow indicator . In this last
case, the value of the first word is all zeroes. */
#define NS_TSI_EMPTY 0 x80000000
#define NS_TSI_TIMESTAMP_MASK 0 x00FFFFFF
#define ns_tsi_isempty(ns_tsip) \
(le32_to_cpu((ns_tsip)->word_2) & NS_TSI_EMPTY)
#define ns_tsi_gettimestamp(ns_tsip) \
(le32_to_cpu((ns_tsip)->word_2) & NS_TSI_TIMESTAMP_MASK)
#define ns_tsi_init(ns_tsip) \
((ns_tsip)->word_2 = cpu_to_le32(NS_TSI_EMPTY))
#define NS_TSQSIZE 8192
#define NS_TSQ_NUM_ENTRIES 1024
#define NS_TSQ_ALIGNMENT 8192
#define NS_TSI_SCDISVBR NS_TSR_SCDISVBR
#define ns_tsi_tmrof(ns_tsip) \
(le32_to_cpu((ns_tsip)->word_1) == 0 x00000000)
#define ns_tsi_getscdindex(ns_tsip) \
((le32_to_cpu((ns_tsip)->word_1) & 0 xFFFF0000) >> 16 )
#define ns_tsi_getscqpos(ns_tsip) \
(le32_to_cpu((ns_tsip)->word_1) & 0 x00007FFF)
/* NICStAR structures located in local SRAM */
/*
* RCT - Receive Connection Table
*
* Written by both the NICStAR and the device driver .
*/
typedef struct ns_rcte {
u32 word_1;
u32 buffer_handle;
u32 dma_address;
u32 aal5_crc32;
} ns_rcte;
#define NS_RCTE_BSFB 0 x00200000 /* Rev. D only */
#define NS_RCTE_NZGFC 0 x00100000
#define NS_RCTE_CONNECTOPEN 0 x00080000
#define NS_RCTE_AALMASK 0 x00070000
#define NS_RCTE_AAL0 0 x00000000
#define NS_RCTE_AAL34 0 x00010000
#define NS_RCTE_AAL5 0 x00020000
#define NS_RCTE_RCQ 0 x00030000
#define NS_RCTE_RAWCELLINTEN 0 x00008000
#define NS_RCTE_RXCONSTCELLADDR 0 x00004000
#define NS_RCTE_BUFFVALID 0 x00002000
#define NS_RCTE_FBDSIZE 0 x00001000
#define NS_RCTE_EFCI 0 x00000800
#define NS_RCTE_CLP 0 x00000400
#define NS_RCTE_CRCERROR 0 x00000200
#define NS_RCTE_CELLCOUNT_MASK 0 x000001FF
#define NS_RCTE_FBDSIZE_SM 0 x00000000
#define NS_RCTE_FBDSIZE_LG 0 x00001000
#define NS_RCT_ENTRY_SIZE 4 /* Number of dwords */
/* NOTE: We could make macros to contruct the first word of the RCTE,
but that doesn't seem to make much sense... */
/*
* FBD - Free Buffer Descriptor
*
* Written by the device driver using via the command register .
*/
typedef struct ns_fbd {
u32 buffer_handle;
u32 dma_address;
} ns_fbd;
/*
* TST - Transmit Schedule Table
*
* Written by the device driver .
*/
typedef u32 ns_tste;
#define NS_TST_OPCODE_MASK 0 x60000000
#define NS_TST_OPCODE_NULL 0 x00000000 /* Insert null cell */
#define NS_TST_OPCODE_FIXED 0 x20000000 /* Cell from a fixed rate channel */
#define NS_TST_OPCODE_VARIABLE 0 x40000000
#define NS_TST_OPCODE_END 0 x60000000 /* Jump */
#define ns_tste_make(opcode, sramad) (opcode | sramad)
/* NOTE:
- When the opcode is FIXED , sramad specifies the SRAM address of the
SCD for that fixed rate channel .
- When the opcode is END , sramad specifies the SRAM address of the
location of the next TST entry to read .
*/
/*
* SCD - Segmentation Channel Descriptor
*
* Written by both the device driver and the NICStAR
*/
typedef struct ns_scd {
u32 word_1;
u32 word_2;
u32 partial_aal5_crc;
u32 reserved;
ns_scqe cache_a;
ns_scqe cache_b;
} ns_scd;
#define NS_SCD_BASE_MASK_VAR 0 xFFFFE000 /* Variable rate */
#define NS_SCD_BASE_MASK_FIX 0 xFFFFFC00 /* Fixed rate */
#define NS_SCD_TAIL_MASK_VAR 0 x00001FF0
#define NS_SCD_TAIL_MASK_FIX 0 x000003F0
#define NS_SCD_HEAD_MASK_VAR 0 x00001FF0
#define NS_SCD_HEAD_MASK_FIX 0 x000003F0
#define NS_SCD_XMITFOREVER 0 x02000000
/* NOTE: There are other fields in word 2 of the SCD, but as they should
not be needed in the device driver they are not defined here. */
/* NICStAR local SRAM memory map */
#define NS_RCT 0 x00000
#define NS_RCT_32_END 0 x03FFF
#define NS_RCT_128_END 0 x0FFFF
#define NS_UNUSED_32 0 x04000
#define NS_UNUSED_128 0 x10000
#define NS_UNUSED_END 0 x1BFFF
#define NS_TST_FRSCD 0 x1C000
#define NS_TST_FRSCD_END 0 x1E7DB
#define NS_VRSCD2 0 x1E7DC
#define NS_VRSCD2_END 0 x1E7E7
#define NS_VRSCD1 0 x1E7E8
#define NS_VRSCD1_END 0 x1E7F3
#define NS_VRSCD0 0 x1E7F4
#define NS_VRSCD0_END 0 x1E7FF
#define NS_RXFIFO 0 x1E800
#define NS_RXFIFO_END 0 x1F7FF
#define NS_SMFBQ 0 x1F800
#define NS_SMFBQ_END 0 x1FBFF
#define NS_LGFBQ 0 x1FC00
#define NS_LGFBQ_END 0 x1FFFF
/* NISCtAR operation registers */
/* See Section 3.4 of `IDT77211 NICStAR User Manual' from www.idt.com */
enum ns_regs {
DR0 = 0 x00, /* Data Register 0 R/W */
DR1 = 0 x04, /* Data Register 1 W */
DR2 = 0 x08, /* Data Register 2 W */
DR3 = 0 x0C, /* Data Register 3 W */
CMD = 0 x10, /* Command W */
CFG = 0 x14, /* Configuration R/W */
STAT = 0 x18, /* Status R/W */
RSQB = 0 x1C, /* Receive Status Queue Base W */
RSQT = 0 x20, /* Receive Status Queue Tail R */
RSQH = 0 x24, /* Receive Status Queue Head W */
CDC = 0 x28, /* Cell Drop Counter R/clear */
VPEC = 0 x2C, /* VPI/VCI Lookup Error Count R/clear */
ICC = 0 x30, /* Invalid Cell Count R/clear */
RAWCT = 0 x34, /* Raw Cell Tail R */
TMR = 0 x38, /* Timer R */
TSTB = 0 x3C, /* Transmit Schedule Table Base R/W */
TSQB = 0 x40, /* Transmit Status Queue Base W */
TSQT = 0 x44, /* Transmit Status Queue Tail R */
TSQH = 0 x48, /* Transmit Status Queue Head W */
GP = 0 x4C, /* General Purpose R/W */
VPM = 0 x50 /* VPI/VCI Mask W */
};
/* NICStAR commands issued to the CMD register */
/* Top 4 bits are command opcode, lower 28 are parameters. */
#define NS_CMD_NO_OPERATION 0 x00000000
/* params always 0 */
#define NS_CMD_OPENCLOSE_CONNECTION 0 x20000000
/* b19{1=open,0=close} b18-2{SRAM addr} */
#define NS_CMD_WRITE_SRAM 0 x40000000
/* b18-2{SRAM addr} b1-0{burst size} */
#define NS_CMD_READ_SRAM 0 x50000000
/* b18-2{SRAM addr} */
#define NS_CMD_WRITE_FREEBUFQ 0 x60000000
/* b0{large buf indicator} */
#define NS_CMD_READ_UTILITY 0 x80000000
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
#define NS_CMD_WRITE_UTILITY 0 x90000000
/* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
#define NS_CMD_OPEN_CONNECTION (NS_CMD_OPENCLOSE_CONNECTION | 0 x00080000)
#define NS_CMD_CLOSE_CONNECTION NS_CMD_OPENCLOSE_CONNECTION
/* NICStAR configuration bits */
#define NS_CFG_SWRST 0 x80000000 /* Software Reset */
#define NS_CFG_RXPATH 0 x20000000 /* Receive Path Enable */
#define NS_CFG_SMBUFSIZE_MASK 0 x18000000 /* Small Receive Buffer Size */
#define NS_CFG_LGBUFSIZE_MASK 0 x06000000 /* Large Receive Buffer Size */
#define NS_CFG_EFBIE 0 x01000000 /* Empty Free Buffer Queue
Interrupt Enable */
#define NS_CFG_RSQSIZE_MASK 0 x00C00000 /* Receive Status Queue Size */
#define NS_CFG_ICACCEPT 0 x00200000 /* Invalid Cell Accept */
#define NS_CFG_IGNOREGFC 0 x00100000 /* Ignore General Flow Control */
#define NS_CFG_VPIBITS_MASK 0 x000C0000 /* VPI/VCI Bits Size Select */
#define NS_CFG_RCTSIZE_MASK 0 x00030000 /* Receive Connection Table Size */
#define NS_CFG_VCERRACCEPT 0 x00008000 /* VPI/VCI Error Cell Accept */
#define NS_CFG_RXINT_MASK 0 x00007000 /* End of Receive PDU Interrupt
Handling */
#define NS_CFG_RAWIE 0 x00000800 /* Raw Cell Qu' Interrupt Enable */
#define NS_CFG_RSQAFIE 0 x00000400 /* Receive Queue Almost Full
Interrupt Enable */
#define NS_CFG_RXRM 0 x00000200 /* Receive RM Cells */
#define NS_CFG_TMRROIE 0 x00000080 /* Timer Roll Over Interrupt
Enable */
#define NS_CFG_TXEN 0 x00000020 /* Transmit Operation Enable */
#define NS_CFG_TXIE 0 x00000010 /* Transmit Status Interrupt
Enable */
#define NS_CFG_TXURIE 0 x00000008 /* Transmit Under-run Interrupt
Enable */
#define NS_CFG_UMODE 0 x00000004 /* Utopia Mode (cell/byte) Select */
#define NS_CFG_TSQFIE 0 x00000002 /* Transmit Status Queue Full
Interrupt Enable */
#define NS_CFG_PHYIE 0 x00000001 /* PHY Interrupt Enable */
#define NS_CFG_SMBUFSIZE_48 0 x00000000
#define NS_CFG_SMBUFSIZE_96 0 x08000000
#define NS_CFG_SMBUFSIZE_240 0 x10000000
#define NS_CFG_SMBUFSIZE_2048 0 x18000000
#define NS_CFG_LGBUFSIZE_2048 0 x00000000
#define NS_CFG_LGBUFSIZE_4096 0 x02000000
#define NS_CFG_LGBUFSIZE_8192 0 x04000000
#define NS_CFG_LGBUFSIZE_16384 0 x06000000
#define NS_CFG_RSQSIZE_2048 0 x00000000
#define NS_CFG_RSQSIZE_4096 0 x00400000
#define NS_CFG_RSQSIZE_8192 0 x00800000
#define NS_CFG_VPIBITS_0 0 x00000000
#define NS_CFG_VPIBITS_1 0 x00040000
#define NS_CFG_VPIBITS_2 0 x00080000
#define NS_CFG_VPIBITS_8 0 x000C0000
#define NS_CFG_RCTSIZE_4096_ENTRIES 0 x00000000
#define NS_CFG_RCTSIZE_8192_ENTRIES 0 x00010000
#define NS_CFG_RCTSIZE_16384_ENTRIES 0 x00020000
#define NS_CFG_RXINT_NOINT 0 x00000000
#define NS_CFG_RXINT_NODELAY 0 x00001000
#define NS_CFG_RXINT_314US 0 x00002000
#define NS_CFG_RXINT_624US 0 x00003000
#define NS_CFG_RXINT_899US 0 x00004000
/* NICStAR STATus bits */
#define NS_STAT_SFBQC_MASK 0 xFF000000 /* hi 8 bits Small Buffer Queue Count */
#define NS_STAT_LFBQC_MASK 0 x00FF0000 /* hi 8 bits Large Buffer Queue Count */
#define NS_STAT_TSIF 0 x00008000 /* Transmit Status Queue Indicator */
#define NS_STAT_TXICP 0 x00004000 /* Transmit Incomplete PDU */
#define NS_STAT_TSQF 0 x00001000 /* Transmit Status Queue Full */
#define NS_STAT_TMROF 0 x00000800 /* Timer Overflow */
#define NS_STAT_PHYI 0 x00000400 /* PHY Device Interrupt */
#define NS_STAT_CMDBZ 0 x00000200 /* Command Busy */
#define NS_STAT_SFBQF 0 x00000100 /* Small Buffer Queue Full */
#define NS_STAT_LFBQF 0 x00000080 /* Large Buffer Queue Full */
#define NS_STAT_RSQF 0 x00000040 /* Receive Status Queue Full */
#define NS_STAT_EOPDU 0 x00000020 /* End of PDU */
#define NS_STAT_RAWCF 0 x00000010 /* Raw Cell Flag */
#define NS_STAT_SFBQE 0 x00000008 /* Small Buffer Queue Empty */
#define NS_STAT_LFBQE 0 x00000004 /* Large Buffer Queue Empty */
#define NS_STAT_RSQAF 0 x00000002 /* Receive Status Queue Almost Full */
#define ns_stat_sfbqc_get(stat) (((stat) & NS_STAT_SFBQC_MASK) >> 23 )
#define ns_stat_lfbqc_get(stat) (((stat) & NS_STAT_LFBQC_MASK) >> 15 )
/* #defines which depend on other #defines */
#define NS_TST0 NS_TST_FRSCD
#define NS_TST1 (NS_TST_FRSCD + NS_TST_NUM_ENTRIES + 1 )
#define NS_FRSCD (NS_TST1 + NS_TST_NUM_ENTRIES + 1 )
#define NS_FRSCD_SIZE 12 /* 12 dwords */
#define NS_FRSCD_NUM ((NS_TST_FRSCD_END + 1 - NS_FRSCD) / NS_FRSCD_SIZE)
#if (NS_SMBUFSIZE == 48 )
#define NS_CFG_SMBUFSIZE NS_CFG_SMBUFSIZE_48
#elif (NS_SMBUFSIZE == 96 )
#define NS_CFG_SMBUFSIZE NS_CFG_SMBUFSIZE_96
#elif (NS_SMBUFSIZE == 240 )
#define NS_CFG_SMBUFSIZE NS_CFG_SMBUFSIZE_240
#elif (NS_SMBUFSIZE == 2048 )
#define NS_CFG_SMBUFSIZE NS_CFG_SMBUFSIZE_2048
#else
#error NS_SMBUFSIZE is incorrect in nicstar.h
#endif /* NS_SMBUFSIZE */
#if (NS_LGBUFSIZE == 2048 )
#define NS_CFG_LGBUFSIZE NS_CFG_LGBUFSIZE_2048
#elif (NS_LGBUFSIZE == 4096 )
#define NS_CFG_LGBUFSIZE NS_CFG_LGBUFSIZE_4096
#elif (NS_LGBUFSIZE == 8192 )
#define NS_CFG_LGBUFSIZE NS_CFG_LGBUFSIZE_8192
#elif (NS_LGBUFSIZE == 16384 )
#define NS_CFG_LGBUFSIZE NS_CFG_LGBUFSIZE_16384
#else
#error NS_LGBUFSIZE is incorrect in nicstar.h
#endif /* NS_LGBUFSIZE */
#if (NS_RSQSIZE == 2048 )
#define NS_CFG_RSQSIZE NS_CFG_RSQSIZE_2048
#elif (NS_RSQSIZE == 4096 )
#define NS_CFG_RSQSIZE NS_CFG_RSQSIZE_4096
#elif (NS_RSQSIZE == 8192 )
#define NS_CFG_RSQSIZE NS_CFG_RSQSIZE_8192
#else
#error NS_RSQSIZE is incorrect in nicstar.h
#endif /* NS_RSQSIZE */
#if (NS_VPIBITS == 0 )
#define NS_CFG_VPIBITS NS_CFG_VPIBITS_0
#elif (NS_VPIBITS == 1 )
#define NS_CFG_VPIBITS NS_CFG_VPIBITS_1
#elif (NS_VPIBITS == 2 )
#define NS_CFG_VPIBITS NS_CFG_VPIBITS_2
#elif (NS_VPIBITS == 8 )
#define NS_CFG_VPIBITS NS_CFG_VPIBITS_8
#else
#error NS_VPIBITS is incorrect in nicstar.h
#endif /* NS_VPIBITS */
#ifdef RCQ_SUPPORT
#define NS_CFG_RAWIE_OPT NS_CFG_RAWIE
#else
#define NS_CFG_RAWIE_OPT 0 x00000000
#endif /* RCQ_SUPPORT */
#ifdef ENABLE_TSQFIE
#define NS_CFG_TSQFIE_OPT NS_CFG_TSQFIE
#else
#define NS_CFG_TSQFIE_OPT 0 x00000000
#endif /* ENABLE_TSQFIE */
/* PCI stuff */
#ifndef PCI_VENDOR_ID_IDT
#define PCI_VENDOR_ID_IDT 0 x111D
#endif /* PCI_VENDOR_ID_IDT */
#ifndef PCI_DEVICE_ID_IDT_IDT77201
#define PCI_DEVICE_ID_IDT_IDT77201 0 x0001
#endif /* PCI_DEVICE_ID_IDT_IDT77201 */
/* Device driver structures */
struct ns_skb_prv {
u32 buf_type; /* BUF_SM/BUF_LG/BUF_NONE */
u32 dma;
int iovcnt;
};
#define NS_PRV_BUFTYPE(skb) \
(((struct ns_skb_prv *)(ATM_SKB(skb)+1 ))->buf_type)
#define NS_PRV_DMA(skb) \
(((struct ns_skb_prv *)(ATM_SKB(skb)+1 ))->dma)
#define NS_PRV_IOVCNT(skb) \
(((struct ns_skb_prv *)(ATM_SKB(skb)+1 ))->iovcnt)
typedef struct tsq_info {
void *org;
dma_addr_t dma;
ns_tsi *base;
ns_tsi *next;
ns_tsi *last;
} tsq_info;
typedef struct scq_info {
void *org;
dma_addr_t dma;
ns_scqe *base;
ns_scqe *last;
ns_scqe *next;
volatile ns_scqe *tail; /* Not related to the nicstar register */
unsigned num_entries;
struct sk_buff **skb; /* Pointer to an array of pointers
to the sk_buffs used for tx */
u32 scd; /* SRAM address of the corresponding
SCD */
int tbd_count; /* Only meaningful on variable rate */
wait_queue_head_t scqfull_waitq;
volatile char full; /* SCQ full indicator */
spinlock_t lock; /* SCQ spinlock */
} scq_info;
typedef struct rsq_info {
void *org;
dma_addr_t dma;
ns_rsqe *base;
ns_rsqe *next;
ns_rsqe *last;
} rsq_info;
typedef struct skb_pool {
volatile int count; /* number of buffers in the queue */
struct sk_buff_head queue;
} skb_pool;
/* NOTE: for small and large buffer pools, the count is not used, as the
actual value used for buffer management is the one read from the
card. */
typedef struct vc_map {
volatile unsigned int tx:1 ; /* TX vc? */
volatile unsigned int rx:1 ; /* RX vc? */
struct atm_vcc *tx_vcc, *rx_vcc;
struct sk_buff *rx_iov; /* RX iovector skb */
scq_info *scq; /* To keep track of the SCQ */
u32 cbr_scd; /* SRAM address of the corresponding
SCD. 0x00000000 for UBR/VBR/ABR */
int tbd_count;
} vc_map;
typedef struct ns_dev {
int index; /* Card ID to the device driver */
int sram_size; /* In k x 32bit words. 32 or 128 */
void __iomem *membase; /* Card's memory base address */
unsigned long max_pcr;
int rct_size; /* Number of entries */
int vpibits;
int vcibits;
struct pci_dev *pcidev;
struct idr idr;
struct atm_dev *atmdev;
tsq_info tsq;
rsq_info rsq;
scq_info *scq0, *scq1, *scq2; /* VBR SCQs */
skb_pool sbpool; /* Small buffers */
skb_pool lbpool; /* Large buffers */
skb_pool hbpool; /* Pre-allocated huge buffers */
skb_pool iovpool; /* iovector buffers */
volatile int efbie; /* Empty free buf. queue int. enabled */
volatile u32 tst_addr; /* SRAM address of the TST in use */
volatile int tst_free_entries;
vc_map vcmap[NS_MAX_RCTSIZE];
vc_map *tste2vc[NS_TST_NUM_ENTRIES];
vc_map *scd2vc[NS_FRSCD_NUM];
buf_nr sbnr;
buf_nr lbnr;
buf_nr hbnr;
buf_nr iovnr;
int sbfqc;
int lbfqc;
struct sk_buff *sm_handle;
u32 sm_addr;
struct sk_buff *lg_handle;
u32 lg_addr;
struct sk_buff *rcbuf; /* Current raw cell buffer */
struct ns_rcqe *rawcell;
u32 rawch; /* Raw cell queue head */
unsigned intcnt; /* Interrupt counter */
spinlock_t int_lock; /* Interrupt lock */
spinlock_t res_lock; /* Card resource lock */
} ns_dev;
/* NOTE: Each tste2vc entry relates a given TST entry to the corresponding
CBR vc . If the entry is not allocated , it must be NULL .
There are two TSTs so the driver can modify them on the fly
without stopping the transmission .
scd2vc allows us to find out unused fixed rate SCDs , because
they must have a NULL pointer here. */
#endif /* _LINUX_NICSTAR_H_ */
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