1 files changed, 424 insertions, 0 deletions

diff --git a/drivers/net/skfp/h/hwmtm.h b/drivers/net/skfp/h/hwmtm.h
new file mode 100644
index 000000000000..4e360af07d77
--- /dev/null
+++ b/drivers/net/skfp/h/hwmtm.h
@@ -0,0 +1,424 @@
+/******************************************************************************
+ *
+ *      (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 "h/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 */
+        /*
+         * varaibles 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_TX_CHECK)
+ *      void HWM_TX_CHECK(smc,frame_status,low_water)
+ *
+ * function     MACRO           (hardware module, hwmtm.h)
+ *              This macro is invoked by the OS-specific before it left it's
+ *              driver_send function. This macro calls mac_drv_clear_txd
+ *              if the free TxDs of the current transmit queue is equal or
+ *              lower than the given low water mark.
+ *
+ * para frame_status    status of the frame, see design description
+ *      low_water       low water mark of free TxD's
+ *
+ *      END_MANUAL_ENTRY
+ */
+#ifndef HWM_NO_FLOW_CTL
+#define HWM_TX_CHECK(smc,frame_status,low_water) {\
+        if ((low_water)>=(smc)->hw.fp.tx_q[(frame_status)&QUEUE_A0].tx_free) {\
+                mac_drv_clear_txd(smc) ;\
+        }\
+}
+#else
+#define HWM_TX_CHECK(smc,frame_status,low_water)        mac_drv_clear_txd(smc)
+#endif
+
+/*
+ *      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