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