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marcus.erl |
/******************************************************************************
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*
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* (C)Copyright 1998,1999 SysKonnect,
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* a business unit of Schneider & Koch & Co. Datensysteme GmbH.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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#ifndef _HWM_
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#define _HWM_
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#include "h/mbuf.h"
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/*
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* MACRO for DMA synchronization:
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* The descriptor 'desc' is flushed for the device 'flag'.
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* Devices are the CPU (DDI_DMA_SYNC_FORCPU) and the
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* adapter (DDI_DMA_SYNC_FORDEV).
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*
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* 'desc' Pointer to a Rx or Tx descriptor.
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* 'flag' Flag for direction (view for CPU or DEVICE) that
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* should be synchronized.
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*
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* Empty macros and defines are specified here. The real macro
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* is os-specific and should be defined in osdef1st.h.
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*/
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#ifndef DRV_BUF_FLUSH
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#define DRV_BUF_FLUSH(desc,flag)
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#define DDI_DMA_SYNC_FORCPU
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#define DDI_DMA_SYNC_FORDEV
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#endif
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/*
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* hardware modul dependent receive modes
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*/
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#define RX_ENABLE_PASS_SMT 21
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#define RX_DISABLE_PASS_SMT 22
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#define RX_ENABLE_PASS_NSA 23
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#define RX_DISABLE_PASS_NSA 24
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#define RX_ENABLE_PASS_DB 25
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#define RX_DISABLE_PASS_DB 26
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#define RX_DISABLE_PASS_ALL 27
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#define RX_DISABLE_LLC_PROMISC 28
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#define RX_ENABLE_LLC_PROMISC 29
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#ifndef DMA_RD
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#define DMA_RD 1 /* memory -> hw */
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#endif
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#ifndef DMA_WR
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#define DMA_WR 2 /* hw -> memory */
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#endif
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#define SMT_BUF 0x80
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/*
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* bits of the frame status byte
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*/
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#define EN_IRQ_EOF 0x02 /* get IRQ after end of frame transmission */
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#define LOC_TX 0x04 /* send frame to the local SMT */
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#define LAST_FRAG 0x08 /* last TxD of the frame */
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#define FIRST_FRAG 0x10 /* first TxD of the frame */
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#define LAN_TX 0x20 /* send frame to network if set */
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#define RING_DOWN 0x40 /* error: unable to send, ring down */
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#define OUT_OF_TXD 0x80 /* error: not enough TxDs available */
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#ifndef NULL
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#define NULL 0
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#endif
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#ifdef LITTLE_ENDIAN
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#define HWM_REVERSE(x) (x)
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#else
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#define HWM_REVERSE(x) ((((x)<<24L)&0xff000000L) + \
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(((x)<< 8L)&0x00ff0000L) + \
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(((x)>> 8L)&0x0000ff00L) + \
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(((x)>>24L)&0x000000ffL))
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#endif
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#define C_INDIC (1L<<25)
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#define A_INDIC (1L<<26)
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#define RD_FS_LOCAL 0x80
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/*
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* DEBUG FLAGS
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*/
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#define DEBUG_SMTF 1
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#define DEBUG_SMT 2
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#define DEBUG_ECM 3
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#define DEBUG_RMT 4
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#define DEBUG_CFM 5
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#define DEBUG_PCM 6
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#define DEBUG_SBA 7
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#define DEBUG_ESS 8
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#define DB_HWM_RX 10
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#define DB_HWM_TX 11
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#define DB_HWM_GEN 12
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struct s_mbuf_pool {
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#ifndef MB_OUTSIDE_SMC
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SMbuf mb[MAX_MBUF] ; /* mbuf pool */
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#endif
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SMbuf *mb_start ; /* points to the first mb */
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SMbuf *mb_free ; /* free queue */
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} ;
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struct hwm_r {
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/*
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* hardware modul specific receive variables
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*/
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u_int len ; /* length of the whole frame */
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char *mb_pos ; /* SMbuf receive position */
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} ;
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struct hw_modul {
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/*
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* All hardware modul specific variables
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*/
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struct s_mbuf_pool mbuf_pool ;
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struct hwm_r r ;
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union s_fp_descr volatile *descr_p ; /* points to the desriptor area */
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u_short pass_SMT ; /* pass SMT frames */
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u_short pass_NSA ; /* pass all NSA frames */
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u_short pass_DB ; /* pass Direct Beacon Frames */
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u_short pass_llc_promisc ; /* pass all llc frames (default ON) */
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SMbuf *llc_rx_pipe ; /* points to the first queued llc fr */
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SMbuf *llc_rx_tail ; /* points to the last queued llc fr */
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int queued_rx_frames ; /* number of queued frames */
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SMbuf *txd_tx_pipe ; /* points to first mb in the txd ring */
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SMbuf *txd_tx_tail ; /* points to last mb in the txd ring */
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int queued_txd_mb ; /* number of SMT MBufs in txd ring */
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int rx_break ; /* rev. was breaked because ind. off */
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int leave_isr ; /* leave fddi_isr immedeately if set */
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int isr_flag ; /* set, when HWM is entered from isr */
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/*
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* varaibles for the current transmit frame
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*/
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struct s_smt_tx_queue *tx_p ; /* pointer to the transmit queue */
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u_long tx_descr ; /* tx descriptor for FORMAC+ */
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int tx_len ; /* tx frame length */
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SMbuf *tx_mb ; /* SMT tx MBuf pointer */
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char *tx_data ; /* data pointer to the SMT tx Mbuf */
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int detec_count ; /* counter for out of RxD condition */
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u_long rx_len_error ; /* rx len FORMAC != sum of fragments */
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} ;
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/*
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* DEBUG structs and macros
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*/
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#ifdef DEBUG
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struct os_debug {
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int hwm_rx ;
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int hwm_tx ;
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int hwm_gen ;
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} ;
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#endif
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#ifdef DEBUG
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#ifdef DEBUG_BRD
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#define DB_P smc->debug
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#else
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#define DB_P debug
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#endif
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#define DB_RX(a,b,c,lev) if (DB_P.d_os.hwm_rx >= (lev)) printf(a,b,c)
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#define DB_TX(a,b,c,lev) if (DB_P.d_os.hwm_tx >= (lev)) printf(a,b,c)
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#define DB_GEN(a,b,c,lev) if (DB_P.d_os.hwm_gen >= (lev)) printf(a,b,c)
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#else /* DEBUG */
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#define DB_RX(a,b,c,lev)
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#define DB_TX(a,b,c,lev)
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#define DB_GEN(a,b,c,lev)
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#endif /* DEBUG */
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#ifndef SK_BREAK
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#define SK_BREAK()
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#endif
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/*
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* HWM Macros
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*/
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_TX_PHYS)
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* u_long HWM_GET_TX_PHYS(txd)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to read
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* the physical address of the specified TxD.
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*
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* para txd pointer to the TxD
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_TX_PHYS(txd) (u_long)AIX_REVERSE((txd)->txd_tbadr)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_TX_LEN)
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* int HWM_GET_TX_LEN(txd)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to read
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* the fragment length of the specified TxD
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*
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* para rxd pointer to the TxD
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*
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* return the length of the fragment in bytes
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_TX_LEN(txd) ((int)AIX_REVERSE((txd)->txd_tbctrl)& RD_LENGTH)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_TX_USED)
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* txd *HWM_GET_TX_USED(smc,queue)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to get the
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* number of used TxDs for the queue, specified by the index.
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*
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* para queue the number of the send queue: Can be specified by
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* QUEUE_A0, QUEUE_S or (frame_status & QUEUE_A0)
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*
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* return number of used TxDs for this send queue
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_TX_USED(smc,queue) (int) (smc)->hw.fp.tx_q[queue].tx_used
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_CURR_TXD)
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* txd *HWM_GET_CURR_TXD(smc,queue)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to get the
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* pointer to the TxD which points to the current queue put
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* position.
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*
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* para queue the number of the send queue: Can be specified by
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* QUEUE_A0, QUEUE_S or (frame_status & QUEUE_A0)
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*
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* return pointer to the current TxD
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_CURR_TXD(smc,queue) (struct s_smt_fp_txd volatile *)\
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(smc)->hw.fp.tx_q[queue].tx_curr_put
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_RX_FRAG_LEN)
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* int HWM_GET_RX_FRAG_LEN(rxd)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to read
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* the fragment length of the specified RxD
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*
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* para rxd pointer to the RxD
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*
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* return the length of the fragment in bytes
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_RX_FRAG_LEN(rxd) ((int)AIX_REVERSE((rxd)->rxd_rbctrl)& \
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RD_LENGTH)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_RX_PHYS)
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* u_long HWM_GET_RX_PHYS(rxd)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to read
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* the physical address of the specified RxD.
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*
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* para rxd pointer to the RxD
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*
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* return the RxD's physical pointer to the data fragment
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_RX_PHYS(rxd) (u_long)AIX_REVERSE((rxd)->rxd_rbadr)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_RX_USED)
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* int HWM_GET_RX_USED(smc)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to get
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* the count of used RXDs in receive queue 1.
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*
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* return the used RXD count of receive queue 1
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*
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* NOTE: Remember, because of an ASIC bug at least one RXD should be unused
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* in the descriptor ring !
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_RX_USED(smc) ((int)(smc)->hw.fp.rx_q[QUEUE_R1].rx_used)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_RX_FREE)
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* int HWM_GET_RX_FREE(smc)
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*
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* function MACRO (hardware module, hwmtm.h)
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* This macro may be invoked by the OS-specific module to get
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* the rxd_free count of receive queue 1.
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*
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* return the rxd_free count of receive queue 1
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*
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* END_MANUAL_ENTRY
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*/
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#define HWM_GET_RX_FREE(smc) ((int)(smc)->hw.fp.rx_q[QUEUE_R1].rx_free-1)
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/*
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* BEGIN_MANUAL_ENTRY(HWM_GET_CURR_RXD)
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* rxd *HWM_GET_CURR_RXD(smc)
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*
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| 332 |
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* function MACRO (hardware module, hwmtm.h)
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| 333 |
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* This macro may be invoked by the OS-specific module to get the
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|
|
* pointer to the RxD which points to the current queue put
|
| 335 |
|
|
* position.
|
| 336 |
|
|
*
|
| 337 |
|
|
* return pointer to the current RxD
|
| 338 |
|
|
*
|
| 339 |
|
|
* END_MANUAL_ENTRY
|
| 340 |
|
|
*/
|
| 341 |
|
|
#define HWM_GET_CURR_RXD(smc) (struct s_smt_fp_rxd volatile *)\
|
| 342 |
|
|
(smc)->hw.fp.rx_q[QUEUE_R1].rx_curr_put
|
| 343 |
|
|
|
| 344 |
|
|
/*
|
| 345 |
|
|
* BEGIN_MANUAL_ENTRY(HWM_RX_CHECK)
|
| 346 |
|
|
* void HWM_RX_CHECK(smc,low_water)
|
| 347 |
|
|
*
|
| 348 |
|
|
* function MACRO (hardware module, hwmtm.h)
|
| 349 |
|
|
* This macro is invoked by the OS-specific before it left the
|
| 350 |
|
|
* function mac_drv_rx_complete. This macro calls mac_drv_fill_rxd
|
| 351 |
|
|
* if the number of used RxDs is equal or lower than the
|
| 352 |
|
|
* the given low water mark.
|
| 353 |
|
|
*
|
| 354 |
|
|
* para low_water low water mark of used RxD's
|
| 355 |
|
|
*
|
| 356 |
|
|
* END_MANUAL_ENTRY
|
| 357 |
|
|
*/
|
| 358 |
|
|
#ifndef HWM_NO_FLOW_CTL
|
| 359 |
|
|
#define HWM_RX_CHECK(smc,low_water) {\
|
| 360 |
|
|
if ((low_water) >= (smc)->hw.fp.rx_q[QUEUE_R1].rx_used) {\
|
| 361 |
|
|
mac_drv_fill_rxd(smc) ;\
|
| 362 |
|
|
}\
|
| 363 |
|
|
}
|
| 364 |
|
|
#else
|
| 365 |
|
|
#define HWM_RX_CHECK(smc,low_water) mac_drv_fill_rxd(smc)
|
| 366 |
|
|
#endif
|
| 367 |
|
|
|
| 368 |
|
|
#ifndef HWM_EBASE
|
| 369 |
|
|
#define HWM_EBASE 500
|
| 370 |
|
|
#endif
|
| 371 |
|
|
|
| 372 |
|
|
#define HWM_E0001 HWM_EBASE + 1
|
| 373 |
|
|
#define HWM_E0001_MSG "HWM: Wrong size of s_rxd_os struct"
|
| 374 |
|
|
#define HWM_E0002 HWM_EBASE + 2
|
| 375 |
|
|
#define HWM_E0002_MSG "HWM: Wrong size of s_txd_os struct"
|
| 376 |
|
|
#define HWM_E0003 HWM_EBASE + 3
|
| 377 |
|
|
#define HWM_E0003_MSG "HWM: smt_free_mbuf() called with NULL pointer"
|
| 378 |
|
|
#define HWM_E0004 HWM_EBASE + 4
|
| 379 |
|
|
#define HWM_E0004_MSG "HWM: Parity error rx queue 1"
|
| 380 |
|
|
#define HWM_E0005 HWM_EBASE + 5
|
| 381 |
|
|
#define HWM_E0005_MSG "HWM: Encoding error rx queue 1"
|
| 382 |
|
|
#define HWM_E0006 HWM_EBASE + 6
|
| 383 |
|
|
#define HWM_E0006_MSG "HWM: Encoding error async tx queue"
|
| 384 |
|
|
#define HWM_E0007 HWM_EBASE + 7
|
| 385 |
|
|
#define HWM_E0007_MSG "HWM: Encoding error sync tx queue"
|
| 386 |
|
|
#define HWM_E0008 HWM_EBASE + 8
|
| 387 |
|
|
#define HWM_E0008_MSG ""
|
| 388 |
|
|
#define HWM_E0009 HWM_EBASE + 9
|
| 389 |
|
|
#define HWM_E0009_MSG "HWM: Out of RxD condition detected"
|
| 390 |
|
|
#define HWM_E0010 HWM_EBASE + 10
|
| 391 |
|
|
#define HWM_E0010_MSG "HWM: A protocol layer has tried to send a frame with an invalid frame control"
|
| 392 |
|
|
#define HWM_E0011 HWM_EBASE + 11
|
| 393 |
|
|
#define HWM_E0011_MSG "HWM: mac_drv_clear_tx_queue was called although the hardware wasn't stopped"
|
| 394 |
|
|
#define HWM_E0012 HWM_EBASE + 12
|
| 395 |
|
|
#define HWM_E0012_MSG "HWM: mac_drv_clear_rx_queue was called although the hardware wasn't stopped"
|
| 396 |
|
|
#define HWM_E0013 HWM_EBASE + 13
|
| 397 |
|
|
#define HWM_E0013_MSG "HWM: mac_drv_repair_descr was called although the hardware wasn't stopped"
|
| 398 |
|
|
|
| 399 |
|
|
#endif
|
