fplustm.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:41k
- /******************************************************************************
- *
- * (C)Copyright 1998,1999 SysKonnect,
- * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
- *
- * See the file "skfddi.c" for further information.
- *
- * 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.
- *
- ******************************************************************************/
- /*
- * FORMAC+ Driver for tag mode
- */
- #include "h/types.h"
- #include "h/fddi.h"
- #include "h/smc.h"
- #include "h/supern_2.h"
- #include "can.c"
- #ifndef lint
- static const char ID_sccs[] = "@(#)fplustm.c 1.32 99/02/23 (C) SK " ;
- #endif
- #ifndef UNUSED
- #ifdef lint
- #define UNUSED(x) (x) = (x)
- #else
- #define UNUSED(x)
- #endif
- #endif
- #define FM_ADDRX (FM_ADDET|FM_EXGPA0|FM_EXGPA1)
- #define MS2BCLK(x) ((x)*12500L)
- #define US2BCLK(x) ((x)*1250L)
- /*
- * prototypes for static function
- */
- static void build_claim_beacon() ;
- static int init_mac() ;
- static void rtm_init() ;
- static void smt_split_up_fifo() ;
- #if (!defined(NO_SMT_PANIC) || defined(DEBUG))
- static char write_mdr_warning [] = "E350 write_mdr() FM_SNPPND is setn";
- static char cam_warning [] = "E_SMT_004: CAM still busyn";
- #endif
- #define DUMMY_READ() smc->hw.mc_dummy = (u_short) inp(ADDR(B0_RAP))
- #define CHECK_NPP() { unsigned k = 10000 ;
- while ((inpw(FM_A(FM_STMCHN)) & FM_SNPPND) && k) k--;
- if (!k) {
- SMT_PANIC(smc,SMT_E0130, SMT_E0130_MSG) ;
- }
- }
- #define CHECK_CAM() { unsigned k = 10 ;
- while (!(inpw(FM_A(FM_AFSTAT)) & FM_DONE) && k) k--;
- if (!k) {
- SMT_PANIC(smc,SMT_E0131, SMT_E0131_MSG) ;
- }
- }
- const struct fddi_addr fddi_broadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
- static const struct fddi_addr null_addr = {{0,0,0,0,0,0}};
- static const struct fddi_addr dbeacon_multi = {{0x01,0x80,0xc2,0x00,0x01,0x00}};
- static const u_short my_said = 0xffff ; /* short address (n.u.) */
- static const u_short my_sagp = 0xffff ; /* short group address (n.u.) */
- /*
- * define my address
- */
- #ifdef USE_CAN_ADDR
- #define MA smc->hw.fddi_canon_addr
- #else
- #define MA smc->hw.fddi_home_addr
- #endif
- /*
- * useful interrupt bits
- */
- static int mac_imsk1u = FM_STXABRS | FM_STXABRA0 | FM_SXMTABT ;
- static int mac_imsk1l = FM_SQLCKS | FM_SQLCKA0 | FM_SPCEPDS | FM_SPCEPDA0|
- FM_STBURS | FM_STBURA0 ;
- /* delete FM_SRBFL after tests */
- static int mac_imsk2u = FM_SERRSF | FM_SNFSLD | FM_SRCVOVR | FM_SRBFL |
- FM_SMYCLM ;
- static int mac_imsk2l = FM_STRTEXR | FM_SDUPCLM | FM_SFRMCTR |
- FM_SERRCTR | FM_SLSTCTR |
- FM_STRTEXP | FM_SMULTDA | FM_SRNGOP ;
- static int mac_imsk3u = FM_SRCVOVR2 | FM_SRBFL2 ;
- static int mac_imsk3l = FM_SRPERRQ2 | FM_SRPERRQ1 ;
- static int mac_beacon_imsk2u = FM_SOTRBEC | FM_SMYBEC | FM_SBEC |
- FM_SLOCLM | FM_SHICLM | FM_SMYCLM | FM_SCLM ;
- static u_long mac_get_tneg(smc)
- struct s_smc *smc ;
- {
- u_long tneg ;
- tneg = (u_long)((long)inpw(FM_A(FM_TNEG))<<5) ;
- return((u_long)((tneg + ((inpw(FM_A(FM_TMRS))>>10)&0x1f)) |
- 0xffe00000L)) ;
- }
- void mac_update_counter(smc)
- struct s_smc *smc ;
- {
- smc->mib.m[MAC0].fddiMACFrame_Ct =
- (smc->mib.m[MAC0].fddiMACFrame_Ct & 0xffff0000L)
- + (u_short) inpw(FM_A(FM_FCNTR)) ;
- smc->mib.m[MAC0].fddiMACLost_Ct =
- (smc->mib.m[MAC0].fddiMACLost_Ct & 0xffff0000L)
- + (u_short) inpw(FM_A(FM_LCNTR)) ;
- smc->mib.m[MAC0].fddiMACError_Ct =
- (smc->mib.m[MAC0].fddiMACError_Ct & 0xffff0000L)
- + (u_short) inpw(FM_A(FM_ECNTR)) ;
- smc->mib.m[MAC0].fddiMACT_Neg = mac_get_tneg(smc) ;
- #ifdef SMT_REAL_TOKEN_CT
- /*
- * If the token counter is emulated it is updated in smt_event.
- */
- TBD
- #else
- smt_emulate_token_ct( smc, MAC0 );
- #endif
- }
- /*
- * write long value into buffer memory over memory data register (MDR),
- */
- void write_mdr(smc,val)
- struct s_smc *smc ;
- u_long val;
- {
- CHECK_NPP() ;
- MDRW(val) ;
- }
- /*
- * read long value from buffer memory over memory data register (MDR),
- */
- u_long read_mdr(smc,addr)
- struct s_smc *smc ;
- unsigned int addr;
- {
- long p ;
- CHECK_NPP() ;
- MARR(addr) ;
- outpw(FM_A(FM_CMDREG1),FM_IRMEMWO) ;
- CHECK_NPP() ; /* needed for PCI to prevent from timeing violations */
- /* p = MDRR() ; */ /* bad read values if the workaround */
- /* smc->hw.mc_dummy = *((short volatile far *)(addr)))*/
- /* is used */
- p = (u_long)inpw(FM_A(FM_MDRU))<<16 ;
- p += (u_long)inpw(FM_A(FM_MDRL)) ;
- return(p) ;
- }
- /*
- * clear buffer memory
- */
- static void init_ram(smc)
- struct s_smc *smc ;
- {
- u_short i ;
- smc->hw.fp.fifo.rbc_ram_start = 0 ;
- smc->hw.fp.fifo.rbc_ram_end =
- smc->hw.fp.fifo.rbc_ram_start + RBC_MEM_SIZE ;
- CHECK_NPP() ;
- MARW(smc->hw.fp.fifo.rbc_ram_start) ;
- for (i = smc->hw.fp.fifo.rbc_ram_start;
- i < (u_short) (smc->hw.fp.fifo.rbc_ram_end-1); i++)
- write_mdr(smc,0L) ;
- /* Erase the last byte too */
- write_mdr(smc,0L) ;
- }
- /*
- * set receive FIFO pointer
- */
- static void set_recvptr(smc)
- struct s_smc *smc ;
- {
- /*
- * initialize the pointer for receive queue 1
- */
- outpw(FM_A(FM_RPR1),smc->hw.fp.fifo.rx1_fifo_start) ; /* RPR1 */
- outpw(FM_A(FM_SWPR1),smc->hw.fp.fifo.rx1_fifo_start) ; /* SWPR1 */
- outpw(FM_A(FM_WPR1),smc->hw.fp.fifo.rx1_fifo_start) ; /* WPR1 */
- outpw(FM_A(FM_EARV1),smc->hw.fp.fifo.tx_s_start-1) ; /* EARV1 */
- /*
- * initialize the pointer for receive queue 2
- */
- if (smc->hw.fp.fifo.rx2_fifo_size) {
- outpw(FM_A(FM_RPR2),smc->hw.fp.fifo.rx2_fifo_start) ;
- outpw(FM_A(FM_SWPR2),smc->hw.fp.fifo.rx2_fifo_start) ;
- outpw(FM_A(FM_WPR2),smc->hw.fp.fifo.rx2_fifo_start) ;
- outpw(FM_A(FM_EARV2),smc->hw.fp.fifo.rbc_ram_end-1) ;
- }
- else {
- outpw(FM_A(FM_RPR2),smc->hw.fp.fifo.rbc_ram_end-1) ;
- outpw(FM_A(FM_SWPR2),smc->hw.fp.fifo.rbc_ram_end-1) ;
- outpw(FM_A(FM_WPR2),smc->hw.fp.fifo.rbc_ram_end-1) ;
- outpw(FM_A(FM_EARV2),smc->hw.fp.fifo.rbc_ram_end-1) ;
- }
- }
- /*
- * set transmit FIFO pointer
- */
- static void set_txptr(smc)
- struct s_smc *smc ;
- {
- outpw(FM_A(FM_CMDREG2),FM_IRSTQ) ; /* reset transmit queues */
- /*
- * initialize the pointer for asynchronous transmit queue
- */
- outpw(FM_A(FM_RPXA0),smc->hw.fp.fifo.tx_a0_start) ; /* RPXA0 */
- outpw(FM_A(FM_SWPXA0),smc->hw.fp.fifo.tx_a0_start) ; /* SWPXA0 */
- outpw(FM_A(FM_WPXA0),smc->hw.fp.fifo.tx_a0_start) ; /* WPXA0 */
- outpw(FM_A(FM_EAA0),smc->hw.fp.fifo.rx2_fifo_start-1) ; /* EAA0 */
- /*
- * initialize the pointer for synchronous transmit queue
- */
- if (smc->hw.fp.fifo.tx_s_size) {
- outpw(FM_A(FM_RPXS),smc->hw.fp.fifo.tx_s_start) ;
- outpw(FM_A(FM_SWPXS),smc->hw.fp.fifo.tx_s_start) ;
- outpw(FM_A(FM_WPXS),smc->hw.fp.fifo.tx_s_start) ;
- outpw(FM_A(FM_EAS),smc->hw.fp.fifo.tx_a0_start-1) ;
- }
- else {
- outpw(FM_A(FM_RPXS),smc->hw.fp.fifo.tx_a0_start-1) ;
- outpw(FM_A(FM_SWPXS),smc->hw.fp.fifo.tx_a0_start-1) ;
- outpw(FM_A(FM_WPXS),smc->hw.fp.fifo.tx_a0_start-1) ;
- outpw(FM_A(FM_EAS),smc->hw.fp.fifo.tx_a0_start-1) ;
- }
- }
- /*
- * init memory buffer management registers
- */
- static void init_rbc(smc)
- struct s_smc *smc ;
- {
- u_short rbc_ram_addr ;
- /*
- * set unused pointers or permanent pointers
- */
- rbc_ram_addr = smc->hw.fp.fifo.rx2_fifo_start - 1 ;
- outpw(FM_A(FM_RPXA1),rbc_ram_addr) ; /* a1-send pointer */
- outpw(FM_A(FM_WPXA1),rbc_ram_addr) ;
- outpw(FM_A(FM_SWPXA1),rbc_ram_addr) ;
- outpw(FM_A(FM_EAA1),rbc_ram_addr) ;
- set_recvptr(smc) ;
- set_txptr(smc) ;
- }
- /*
- * init rx pointer
- */
- static void init_rx(smc)
- struct s_smc *smc ;
- {
- struct s_smt_rx_queue *queue ;
- /*
- * init all tx data structures for receive queue 1
- */
- smc->hw.fp.rx[QUEUE_R1] = queue = &smc->hw.fp.rx_q[QUEUE_R1] ;
- queue->rx_bmu_ctl = (HW_PTR) ADDR(B0_R1_CSR) ;
- queue->rx_bmu_dsc = (HW_PTR) ADDR(B4_R1_DA) ;
- /*
- * init all tx data structures for receive queue 2
- */
- smc->hw.fp.rx[QUEUE_R2] = queue = &smc->hw.fp.rx_q[QUEUE_R2] ;
- queue->rx_bmu_ctl = (HW_PTR) ADDR(B0_R2_CSR) ;
- queue->rx_bmu_dsc = (HW_PTR) ADDR(B4_R2_DA) ;
- }
- /*
- * set the TSYNC register of the FORMAC to regulate synchronous transmission
- */
- void set_formac_tsync(smc,sync_bw)
- struct s_smc *smc ;
- long sync_bw ;
- {
- outpw(FM_A(FM_TSYNC),(unsigned int) (((-sync_bw) >> 5) & 0xffff) ) ;
- }
- /*
- * init all tx data structures
- */
- static void init_tx(smc)
- struct s_smc *smc ;
- {
- struct s_smt_tx_queue *queue ;
- /*
- * init all tx data structures for the synchronous queue
- */
- smc->hw.fp.tx[QUEUE_S] = queue = &smc->hw.fp.tx_q[QUEUE_S] ;
- queue->tx_bmu_ctl = (HW_PTR) ADDR(B0_XS_CSR) ;
- queue->tx_bmu_dsc = (HW_PTR) ADDR(B5_XS_DA) ;
- #ifdef ESS
- set_formac_tsync(smc,smc->ess.sync_bw) ;
- #endif
- /*
- * init all tx data structures for the asynchronous queue 0
- */
- smc->hw.fp.tx[QUEUE_A0] = queue = &smc->hw.fp.tx_q[QUEUE_A0] ;
- queue->tx_bmu_ctl = (HW_PTR) ADDR(B0_XA_CSR) ;
- queue->tx_bmu_dsc = (HW_PTR) ADDR(B5_XA_DA) ;
- llc_recover_tx(smc) ;
- }
- static void mac_counter_init(smc)
- struct s_smc *smc ;
- {
- int i ;
- u_long *ec ;
- /*
- * clear FORMAC+ frame-, lost- and error counter
- */
- outpw(FM_A(FM_FCNTR),0) ;
- outpw(FM_A(FM_LCNTR),0) ;
- outpw(FM_A(FM_ECNTR),0) ;
- /*
- * clear internal error counter stucture
- */
- ec = (u_long *)&smc->hw.fp.err_stats ;
- for (i = (sizeof(struct err_st)/sizeof(long)) ; i ; i--)
- *ec++ = 0L ;
- smc->mib.m[MAC0].fddiMACRingOp_Ct = 0 ;
- }
- /*
- * set FORMAC address, and t_request
- */
- static void set_formac_addr(smc)
- struct s_smc *smc ;
- {
- long t_requ = smc->mib.m[MAC0].fddiMACT_Req ;
- outpw(FM_A(FM_SAID),my_said) ; /* set short address */
- outpw(FM_A(FM_LAIL),(unsigned)((smc->hw.fddi_home_addr.a[4]<<8) +
- smc->hw.fddi_home_addr.a[5])) ;
- outpw(FM_A(FM_LAIC),(unsigned)((smc->hw.fddi_home_addr.a[2]<<8) +
- smc->hw.fddi_home_addr.a[3])) ;
- outpw(FM_A(FM_LAIM),(unsigned)((smc->hw.fddi_home_addr.a[0]<<8) +
- smc->hw.fddi_home_addr.a[1])) ;
- outpw(FM_A(FM_SAGP),my_sagp) ; /* set short group address */
- outpw(FM_A(FM_LAGL),(unsigned)((smc->hw.fp.group_addr.a[4]<<8) +
- smc->hw.fp.group_addr.a[5])) ;
- outpw(FM_A(FM_LAGC),(unsigned)((smc->hw.fp.group_addr.a[2]<<8) +
- smc->hw.fp.group_addr.a[3])) ;
- outpw(FM_A(FM_LAGM),(unsigned)((smc->hw.fp.group_addr.a[0]<<8) +
- smc->hw.fp.group_addr.a[1])) ;
- /* set r_request regs. (MSW & LSW of TRT ) */
- outpw(FM_A(FM_TREQ1),(unsigned)(t_requ>>16)) ;
- outpw(FM_A(FM_TREQ0),(unsigned)t_requ) ;
- }
- void set_int(p,l)
- char *p;
- int l;
- {
- p[0] = (char)(l >> 24) ;
- p[1] = (char)(l >> 16) ;
- p[2] = (char)(l >> 8) ;
- p[3] = (char)(l >> 0) ;
- }
- /*
- * copy TX descriptor to buffer mem
- * append FC field and MAC frame
- * if more bit is set in descr
- * append pointer to descriptor (endless loop)
- * else
- * append 'end of chain' pointer
- */
- static void copy_tx_mac(smc,td,mac,off,len)
- struct s_smc *smc ;
- u_long td; /* transmit descriptor */
- struct fddi_mac *mac; /* mac frame pointer */
- unsigned off; /* start address within buffer memory */
- int len ; /* lenght of the frame including the FC */
- {
- int i ;
- u_int *p ;
- CHECK_NPP() ;
- MARW(off) ; /* set memory address reg for writes */
- p = (u_int *) mac ;
- for (i = (len + 3)/4 ; i ; i--) {
- if (i == 1) {
- /* last word, set the tag bit */
- outpw(FM_A(FM_CMDREG2),FM_ISTTB) ;
- }
- write_mdr(smc,MDR_REVERSE(*p)) ;
- p++ ;
- }
- outpw(FM_A(FM_CMDREG2),FM_ISTTB) ; /* set the tag bit */
- write_mdr(smc,td) ; /* write over memory data reg to buffer */
- }
- /*
- BEGIN_MANUAL_ENTRY(module;tests;3)
- How to test directed beacon frames
- ----------------------------------------------------------------
- o Insert a break point in the function build_claim_beacon()
- before calling copy_tx_mac() for building the claim frame.
- o Modify the RM3_DETECT case so that the RM6_DETECT state
- will always entered from the RM3_DETECT state (function rmt_fsm(),
- rmt.c)
- o Compile the driver.
- o Set the parameter TREQ in the protocol.ini or net.cfg to a
- small value to make sure your station will win the claim
- process.
- o Start the driver.
- o When you reach the break point, modify the SA and DA address
- of the claim frame (e.g. SA = DA = 10005affffff).
- o When you see RM3_DETECT and RM6_DETECT, observe the direct
- beacon frames on the UPPSLANA.
- END_MANUAL_ENTRY
- */
- static void directed_beacon(smc)
- struct s_smc *smc ;
- {
- SK_LOC_DECL(u_int,a[2]) ;
- /*
- * set UNA in frame
- * enable FORMAC to send endless queue of directed beacon
- * important: the UNA starts at byte 1 (not at byte 0)
- */
- * (char *) a = (char) ((long)DBEACON_INFO<<24L) ;
- a[1] = 0 ;
- memcpy((char *)a+1,(char *) &smc->mib.m[MAC0].fddiMACUpstreamNbr,6) ;
- CHECK_NPP() ;
- /* set memory address reg for writes */
- MARW(smc->hw.fp.fifo.rbc_ram_start+DBEACON_FRAME_OFF+4) ;
- write_mdr(smc,MDR_REVERSE(a[0])) ;
- outpw(FM_A(FM_CMDREG2),FM_ISTTB) ; /* set the tag bit */
- write_mdr(smc,MDR_REVERSE(a[1])) ;
- outpw(FM_A(FM_SABC),smc->hw.fp.fifo.rbc_ram_start + DBEACON_FRAME_OFF) ;
- }
- /*
- setup claim & beacon pointer
- NOTE :
- special frame packets end with a pointer to their own
- descriptor, and the MORE bit is set in the descriptor
- */
- static void build_claim_beacon(smc,t_request)
- struct s_smc *smc ;
- u_long t_request;
- {
- u_int td ;
- int len ;
- struct fddi_mac_sf *mac ;
- /*
- * build claim packet
- */
- len = 17 ;
- td = TX_DESCRIPTOR | ((((u_int)len-1)&3)<<27) ;
- mac = &smc->hw.fp.mac_sfb ;
- mac->mac_fc = FC_CLAIM ;
- /* DA == SA in claim frame */
- mac->mac_source = mac->mac_dest = MA ;
- /* 2's complement */
- set_int((char *)mac->mac_info,(int)t_request) ;
- copy_tx_mac(smc,td,(struct fddi_mac *)mac,
- smc->hw.fp.fifo.rbc_ram_start + CLAIM_FRAME_OFF,len) ;
- /* set CLAIM start pointer */
- outpw(FM_A(FM_SACL),smc->hw.fp.fifo.rbc_ram_start + CLAIM_FRAME_OFF) ;
- /*
- * build beacon packet
- */
- len = 17 ;
- td = TX_DESCRIPTOR | ((((u_int)len-1)&3)<<27) ;
- mac->mac_fc = FC_BEACON ;
- mac->mac_source = MA ;
- mac->mac_dest = null_addr ; /* DA == 0 in beacon frame */
- set_int((char *) mac->mac_info,((int)BEACON_INFO<<24) + 0 ) ;
- copy_tx_mac(smc,td,(struct fddi_mac *)mac,
- smc->hw.fp.fifo.rbc_ram_start + BEACON_FRAME_OFF,len) ;
- /* set beacon start pointer */
- outpw(FM_A(FM_SABC),smc->hw.fp.fifo.rbc_ram_start + BEACON_FRAME_OFF) ;
- /*
- * build directed beacon packet
- * contains optional UNA
- */
- len = 23 ;
- td = TX_DESCRIPTOR | ((((u_int)len-1)&3)<<27) ;
- mac->mac_fc = FC_BEACON ;
- mac->mac_source = MA ;
- mac->mac_dest = dbeacon_multi ; /* multicast */
- set_int((char *) mac->mac_info,((int)DBEACON_INFO<<24) + 0 ) ;
- set_int((char *) mac->mac_info+4,0) ;
- set_int((char *) mac->mac_info+8,0) ;
- copy_tx_mac(smc,td,(struct fddi_mac *)mac,
- smc->hw.fp.fifo.rbc_ram_start + DBEACON_FRAME_OFF,len) ;
- /* end of claim/beacon queue */
- outpw(FM_A(FM_EACB),smc->hw.fp.fifo.rx1_fifo_start-1) ;
- outpw(FM_A(FM_WPXSF),0) ;
- outpw(FM_A(FM_RPXSF),0) ;
- }
- void formac_rcv_restart(smc)
- struct s_smc *smc ;
- {
- /* enable receive function */
- SETMASK(FM_A(FM_MDREG1),smc->hw.fp.rx_mode,FM_ADDRX) ;
- outpw(FM_A(FM_CMDREG1),FM_ICLLR) ; /* clear receive lock */
- }
- void formac_tx_restart(smc)
- struct s_smc *smc ;
- {
- outpw(FM_A(FM_CMDREG1),FM_ICLLS) ; /* clear s-frame lock */
- outpw(FM_A(FM_CMDREG1),FM_ICLLA0) ; /* clear a-frame lock */
- }
- static void enable_formac(smc)
- struct s_smc *smc ;
- {
- /* set formac IMSK : 0 enables irq */
- outpw(FM_A(FM_IMSK1U),~mac_imsk1u) ;
- outpw(FM_A(FM_IMSK1L),~mac_imsk1l) ;
- outpw(FM_A(FM_IMSK2U),~mac_imsk2u) ;
- outpw(FM_A(FM_IMSK2L),~mac_imsk2l) ;
- outpw(FM_A(FM_IMSK3U),~mac_imsk3u) ;
- outpw(FM_A(FM_IMSK3L),~mac_imsk3l) ;
- }
- #if 0 /* Removed because the driver should use the ASICs TX complete IRQ. */
- /* The FORMACs tx complete IRQ should be used any longer */
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;4)
- void enable_tx_irq(smc, queue)
- struct s_smc *smc ;
- u_short queue ;
- Function DOWNCALL (SMT, fplustm.c)
- enable_tx_irq() enables the FORMACs transmit complete
- interrupt of the queue.
- Para queue = QUEUE_S: synchronous queue
- = QUEUE_A0: asynchronous queue
- Note After any ring operational change the transmit complete
- interrupts are disabled.
- The operating system dependent module must enable
- the transmit complete interrupt of a queue,
- - when it queues the first frame,
- because of no transmit resources are beeing
- available and
- - when it escapes from the function llc_restart_tx
- while some frames are still queued.
- END_MANUAL_ENTRY
- */
- void enable_tx_irq(smc, queue)
- struct s_smc *smc ;
- u_short queue ; /* 0 = synchronous queue, 1 = asynchronous queue 0 */
- {
- u_short imask ;
- imask = ~(inpw(FM_A(FM_IMSK1U))) ;
- if (queue == 0) {
- outpw(FM_A(FM_IMSK1U),~(imask|FM_STEFRMS)) ;
- }
- if (queue == 1) {
- outpw(FM_A(FM_IMSK1U),~(imask|FM_STEFRMA0)) ;
- }
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;4)
- void disable_tx_irq(smc, queue)
- struct s_smc *smc ;
- u_short queue ;
- Function DOWNCALL (SMT, fplustm.c)
- disable_tx_irq disables the FORMACs transmit complete
- interrupt of the queue
- Para queue = QUEUE_S: synchronous queue
- = QUEUE_A0: asynchronous queue
- Note The operating system dependent module should disable
- the transmit complete interrupts if it escapes from the
- function llc_restart_tx and no frames are queued.
- END_MANUAL_ENTRY
- */
- void disable_tx_irq(smc, queue)
- struct s_smc *smc ;
- u_short queue ; /* 0 = synchronous queue, 1 = asynchronous queue 0 */
- {
- u_short imask ;
- imask = ~(inpw(FM_A(FM_IMSK1U))) ;
- if (queue == 0) {
- outpw(FM_A(FM_IMSK1U),~(imask&~FM_STEFRMS)) ;
- }
- if (queue == 1) {
- outpw(FM_A(FM_IMSK1U),~(imask&~FM_STEFRMA0)) ;
- }
- }
- #endif
- static void disable_formac(smc)
- struct s_smc *smc ;
- {
- /* clear formac IMSK : 1 disables irq */
- outpw(FM_A(FM_IMSK1U),MW) ;
- outpw(FM_A(FM_IMSK1L),MW) ;
- outpw(FM_A(FM_IMSK2U),MW) ;
- outpw(FM_A(FM_IMSK2L),MW) ;
- outpw(FM_A(FM_IMSK3U),MW) ;
- outpw(FM_A(FM_IMSK3L),MW) ;
- }
- static void mac_ring_up(smc,up)
- struct s_smc *smc ;
- int up;
- {
- if (up) {
- formac_rcv_restart(smc) ; /* enable receive function */
- smc->hw.mac_ring_is_up = TRUE ;
- llc_restart_tx(smc) ; /* TX queue */
- }
- else {
- /* disable receive function */
- SETMASK(FM_A(FM_MDREG1),FM_MDISRCV,FM_ADDET) ;
- /* abort current transmit activity */
- outpw(FM_A(FM_CMDREG2),FM_IACTR) ;
- smc->hw.mac_ring_is_up = FALSE ;
- }
- }
- /*--------------------------- ISR handling ----------------------------------*/
- /*
- * mac1_irq is in drvfbi.c
- */
- /*
- * mac2_irq: status bits for the receive queue 1, and ring status
- * ring status indication bits
- */
- void mac2_irq(smc,code_s2u,code_s2l)
- struct s_smc *smc ;
- u_short code_s2u ;
- u_short code_s2l ;
- {
- u_short change_s2l ;
- u_short change_s2u ;
- /* (jd) 22-Feb-1999
- * Restart 2_DMax Timer after end of claiming or beaconing
- */
- if (code_s2u & (FM_SCLM|FM_SHICLM|FM_SBEC|FM_SOTRBEC)) {
- queue_event(smc,EVENT_RMT,RM_TX_STATE_CHANGE) ;
- }
- else if (code_s2l & (FM_STKISS)) {
- queue_event(smc,EVENT_RMT,RM_TX_STATE_CHANGE) ;
- }
- /*
- * XOR current st bits with the last to avoid useless RMT event queuing
- */
- change_s2l = smc->hw.fp.s2l ^ code_s2l ;
- change_s2u = smc->hw.fp.s2u ^ code_s2u ;
- if ((change_s2l & FM_SRNGOP) ||
- (!smc->hw.mac_ring_is_up && ((code_s2l & FM_SRNGOP)))) {
- if (code_s2l & FM_SRNGOP) {
- mac_ring_up(smc,1) ;
- queue_event(smc,EVENT_RMT,RM_RING_OP) ;
- smc->mib.m[MAC0].fddiMACRingOp_Ct++ ;
- }
- else {
- mac_ring_up(smc,0) ;
- queue_event(smc,EVENT_RMT,RM_RING_NON_OP) ;
- }
- goto mac2_end ;
- }
- if (code_s2l & FM_SMISFRM) { /* missed frame */
- smc->mib.m[MAC0].fddiMACNotCopied_Ct++ ;
- }
- if (code_s2u & (FM_SRCVOVR | /* recv. FIFO overflow */
- FM_SRBFL)) { /* recv. buffer full */
- smc->hw.mac_ct.mac_r_restart_counter++ ;
- /* formac_rcv_restart(smc) ; */
- smt_stat_counter(smc,1) ;
- /* goto mac2_end ; */
- }
- if (code_s2u & FM_SOTRBEC)
- queue_event(smc,EVENT_RMT,RM_OTHER_BEACON) ;
- if (code_s2u & FM_SMYBEC)
- queue_event(smc,EVENT_RMT,RM_MY_BEACON) ;
- if (change_s2u & code_s2u & FM_SLOCLM) {
- DB_RMTN(2,"RMT : lower claim receivedn",0,0) ;
- }
- if ((code_s2u & FM_SMYCLM) && !(code_s2l & FM_SDUPCLM)) {
- /*
- * This is my claim and that claim is not detected as a
- * duplicate one.
- */
- queue_event(smc,EVENT_RMT,RM_MY_CLAIM) ;
- }
- if (code_s2l & FM_SDUPCLM) {
- /*
- * If a duplicate claim frame (same SA but T_Bid != T_Req)
- * this flag will be set.
- * In the RMT state machine we need a RM_VALID_CLAIM event
- * to do the appropriate state change.
- * RM(34c)
- */
- queue_event(smc,EVENT_RMT,RM_VALID_CLAIM) ;
- }
- if (change_s2u & code_s2u & FM_SHICLM) {
- DB_RMTN(2,"RMT : higher claim receivedn",0,0) ;
- }
- if ( (code_s2l & FM_STRTEXP) ||
- (code_s2l & FM_STRTEXR) )
- queue_event(smc,EVENT_RMT,RM_TRT_EXP) ;
- if (code_s2l & FM_SMULTDA) {
- /*
- * The MAC has found a 2. MAC with the same address.
- * Signal dup_addr_test = failed to RMT state machine.
- * RM(25)
- */
- smc->r.dup_addr_test = DA_FAILED ;
- queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ;
- }
- if (code_s2u & FM_SBEC)
- smc->hw.fp.err_stats.err_bec_stat++ ;
- if (code_s2u & FM_SCLM)
- smc->hw.fp.err_stats.err_clm_stat++ ;
- if (code_s2l & FM_STVXEXP)
- smc->mib.m[MAC0].fddiMACTvxExpired_Ct++ ;
- if ((code_s2u & (FM_SBEC|FM_SCLM))) {
- if (!(change_s2l & FM_SRNGOP) && (smc->hw.fp.s2l & FM_SRNGOP)) {
- mac_ring_up(smc,0) ;
- queue_event(smc,EVENT_RMT,RM_RING_NON_OP) ;
- mac_ring_up(smc,1) ;
- queue_event(smc,EVENT_RMT,RM_RING_OP) ;
- smc->mib.m[MAC0].fddiMACRingOp_Ct++ ;
- }
- }
- if (code_s2l & FM_SPHINV)
- smc->hw.fp.err_stats.err_phinv++ ;
- if (code_s2l & FM_SSIFG)
- smc->hw.fp.err_stats.err_sifg_det++ ;
- if (code_s2l & FM_STKISS)
- smc->hw.fp.err_stats.err_tkiss++ ;
- if (code_s2l & FM_STKERR)
- smc->hw.fp.err_stats.err_tkerr++ ;
- if (code_s2l & FM_SFRMCTR)
- smc->mib.m[MAC0].fddiMACFrame_Ct += 0x10000L ;
- if (code_s2l & FM_SERRCTR)
- smc->mib.m[MAC0].fddiMACError_Ct += 0x10000L ;
- if (code_s2l & FM_SLSTCTR)
- smc->mib.m[MAC0].fddiMACLost_Ct += 0x10000L ;
- if (code_s2u & FM_SERRSF) {
- SMT_PANIC(smc,SMT_E0114, SMT_E0114_MSG) ;
- }
- mac2_end:
- /* notice old status */
- smc->hw.fp.s2l = code_s2l ;
- smc->hw.fp.s2u = code_s2u ;
- outpw(FM_A(FM_IMSK2U),~mac_imsk2u) ;
- }
- /*
- * mac3_irq: receive queue 2 bits and address detection bits
- */
- void mac3_irq(smc,code_s3u,code_s3l)
- struct s_smc *smc ;
- u_short code_s3u ;
- u_short code_s3l ;
- {
- UNUSED(code_s3l) ;
- if (code_s3u & (FM_SRCVOVR2 | /* recv. FIFO overflow */
- FM_SRBFL2)) { /* recv. buffer full */
- smc->hw.mac_ct.mac_r_restart_counter++ ;
- smt_stat_counter(smc,1);
- }
- if (code_s3u & FM_SRPERRQ2) { /* parity error receive queue 2 */
- SMT_PANIC(smc,SMT_E0115, SMT_E0115_MSG) ;
- }
- if (code_s3u & FM_SRPERRQ1) { /* parity error receive queue 2 */
- SMT_PANIC(smc,SMT_E0116, SMT_E0116_MSG) ;
- }
- }
- /*
- * take formac offline
- */
- static void formac_offline(smc)
- struct s_smc *smc ;
- {
- outpw(FM_A(FM_CMDREG2),FM_IACTR) ;/* abort current transmit activity */
- /* disable receive function */
- SETMASK(FM_A(FM_MDREG1),FM_MDISRCV,FM_ADDET) ;
- /* FORMAC+ 'Initialize Mode' */
- SETMASK(FM_A(FM_MDREG1),FM_MINIT,FM_MMODE) ;
- disable_formac(smc) ;
- smc->hw.mac_ring_is_up = FALSE ;
- smc->hw.hw_state = STOPPED ;
- }
- /*
- * bring formac online
- */
- static void formac_online(smc)
- struct s_smc *smc ;
- {
- enable_formac(smc) ;
- SETMASK(FM_A(FM_MDREG1),FM_MONLINE | FM_SELRA | MDR1INIT |
- smc->hw.fp.rx_mode, FM_MMODE | FM_SELRA | FM_ADDRX) ;
- }
- /*
- * FORMAC+ full init. (tx, rx, timer, counter, claim & beacon)
- */
- int init_fplus(smc)
- struct s_smc *smc ;
- {
- smc->hw.fp.nsa_mode = FM_MRNNSAFNMA ;
- smc->hw.fp.rx_mode = FM_MDAMA ;
- smc->hw.fp.group_addr = fddi_broadcast ;
- smc->hw.fp.func_addr = 0 ;
- smc->hw.fp.frselreg_init = 0 ;
- init_driver_fplus(smc) ;
- if (smc->s.sas == SMT_DAS)
- smc->hw.fp.mdr3init |= FM_MENDAS ;
- smc->hw.mac_ct.mac_nobuf_counter = 0 ;
- smc->hw.mac_ct.mac_r_restart_counter = 0 ;
- smc->hw.fp.fm_st1u = (HW_PTR) ADDR(B0_ST1U) ;
- smc->hw.fp.fm_st1l = (HW_PTR) ADDR(B0_ST1L) ;
- smc->hw.fp.fm_st2u = (HW_PTR) ADDR(B0_ST2U) ;
- smc->hw.fp.fm_st2l = (HW_PTR) ADDR(B0_ST2L) ;
- smc->hw.fp.fm_st3u = (HW_PTR) ADDR(B0_ST3U) ;
- smc->hw.fp.fm_st3l = (HW_PTR) ADDR(B0_ST3L) ;
- smc->hw.fp.s2l = smc->hw.fp.s2u = 0 ;
- smc->hw.mac_ring_is_up = 0 ;
- mac_counter_init(smc) ;
- /* convert BCKL units to symbol time */
- smc->hw.mac_pa.t_neg = (u_long)0 ;
- smc->hw.mac_pa.t_pri = (u_long)0 ;
- /* make sure all PCI settings are correct */
- mac_do_pci_fix(smc) ;
- return(init_mac(smc,1)) ;
- /* enable_formac(smc) ; */
- }
- static int init_mac(smc,all)
- struct s_smc *smc ;
- int all ;
- {
- u_short t_max,x ;
- u_long time=0 ;
- /*
- * clear memory
- */
- outpw(FM_A(FM_MDREG1),FM_MINIT) ; /* FORMAC+ init mode */
- set_formac_addr(smc) ;
- outpw(FM_A(FM_MDREG1),FM_MMEMACT) ; /* FORMAC+ memory activ mode */
- /* Note: Mode register 2 is set here, incase parity is enabled. */
- outpw(FM_A(FM_MDREG2),smc->hw.fp.mdr2init) ;
- if (all) {
- init_ram(smc) ;
- }
- else {
- /*
- * reset the HPI, the Master and the BMUs
- */
- outp(ADDR(B0_CTRL), CTRL_HPI_SET) ;
- time = hwt_quick_read(smc) ;
- }
- /*
- * set all pointers, frames etc
- */
- smt_split_up_fifo(smc) ;
- init_tx(smc) ;
- init_rx(smc) ;
- init_rbc(smc) ;
- build_claim_beacon(smc,smc->mib.m[MAC0].fddiMACT_Req) ;
- /* set RX threshold */
- /* see Errata #SN2 Phantom receive overflow */
- outpw(FM_A(FM_FRMTHR),14<<12) ; /* switch on */
- /* set formac work mode */
- outpw(FM_A(FM_MDREG1),MDR1INIT | FM_SELRA | smc->hw.fp.rx_mode) ;
- outpw(FM_A(FM_MDREG2),smc->hw.fp.mdr2init) ;
- outpw(FM_A(FM_MDREG3),smc->hw.fp.mdr3init) ;
- outpw(FM_A(FM_FRSELREG),smc->hw.fp.frselreg_init) ;
- /* set timer */
- /*
- * errata #22 fplus:
- * T_MAX must not be FFFE
- * or one of FFDF, FFB8, FF91 (-0x27 etc..)
- */
- t_max = (u_short)(smc->mib.m[MAC0].fddiMACT_Max/32) ;
- x = t_max/0x27 ;
- x *= 0x27 ;
- if ((t_max == 0xfffe) || (t_max - x == 0x16))
- t_max-- ;
- outpw(FM_A(FM_TMAX),(u_short)t_max) ;
- /* BugFix for report #10204 */
- if (smc->mib.m[MAC0].fddiMACTvxValue < (u_long) (- US2BCLK(52))) {
- outpw(FM_A(FM_TVX), (u_short) (- US2BCLK(52))/255 & MB) ;
- } else {
- outpw(FM_A(FM_TVX),
- (u_short)((smc->mib.m[MAC0].fddiMACTvxValue/255) & MB)) ;
- }
- outpw(FM_A(FM_CMDREG1),FM_ICLLS) ; /* clear s-frame lock */
- outpw(FM_A(FM_CMDREG1),FM_ICLLA0) ; /* clear a-frame lock */
- outpw(FM_A(FM_CMDREG1),FM_ICLLR); /* clear receive lock */
- /* Auto unlock receice threshold for receive queue 1 and 2 */
- outpw(FM_A(FM_UNLCKDLY),(0xff|(0xff<<8))) ;
- rtm_init(smc) ; /* RT-Monitor */
- if (!all) {
- /*
- * after 10ms, reset the BMUs and repair the rings
- */
- hwt_wait_time(smc,time,MS2BCLK(10)) ;
- outpd(ADDR(B0_R1_CSR),CSR_SET_RESET) ;
- outpd(ADDR(B0_XA_CSR),CSR_SET_RESET) ;
- outpd(ADDR(B0_XS_CSR),CSR_SET_RESET) ;
- outp(ADDR(B0_CTRL), CTRL_HPI_CLR) ;
- outpd(ADDR(B0_R1_CSR),CSR_CLR_RESET) ;
- outpd(ADDR(B0_XA_CSR),CSR_CLR_RESET) ;
- outpd(ADDR(B0_XS_CSR),CSR_CLR_RESET) ;
- if (!smc->hw.hw_is_64bit) {
- outpd(ADDR(B4_R1_F), RX_WATERMARK) ;
- outpd(ADDR(B5_XA_F), TX_WATERMARK) ;
- outpd(ADDR(B5_XS_F), TX_WATERMARK) ;
- }
- smc->hw.hw_state = STOPPED ;
- mac_drv_repair_descr(smc) ;
- }
- smc->hw.hw_state = STARTED ;
- return(0) ;
- }
- /*
- * called by CFM
- */
- void config_mux(smc,mux)
- struct s_smc *smc ;
- int mux;
- {
- plc_config_mux(smc,mux) ;
- SETMASK(FM_A(FM_MDREG1),FM_SELRA,FM_SELRA) ;
- }
- /*
- * called by RMT
- * enable CLAIM/BEACON interrupts
- * (only called if these events are of interest, e.g. in DETECT state
- * the interrupt must not be permanently enabled
- * RMT calls this function periodically (timer driven polling)
- */
- void sm_mac_check_beacon_claim(smc)
- struct s_smc *smc ;
- {
- /* set formac IMSK : 0 enables irq */
- outpw(FM_A(FM_IMSK2U),~(mac_imsk2u | mac_beacon_imsk2u)) ;
- /* the driver must receive the directed beacons */
- formac_rcv_restart(smc) ;
- process_receive(smc) ;
- }
- /*-------------------------- interface functions ----------------------------*/
- /*
- * control ODL output
- */
- void sm_pm_control(smc,mode)
- struct s_smc *smc ;
- int mode;
- {
- SK_UNUSED(smc) ;
- /*
- * if PCM logic has set LS_REQUEST = Transmit QUIET Line State
- * /FOTOFF signal turn activ -> ODL disable
- */
- switch(mode) {
- case PM_TRANSMIT_DISABLE :
- break ;
- case PM_TRANSMIT_ENABLE :
- break ;
- }
- }
- /*
- * control MAC layer (called by RMT)
- */
- void sm_ma_control(smc,mode)
- struct s_smc *smc ;
- int mode;
- {
- switch(mode) {
- case MA_OFFLINE :
- /* Add to make the MAC offline in RM0_ISOLATED state */
- formac_offline(smc) ;
- break ;
- case MA_RESET :
- (void)init_mac(smc,0) ;
- break ;
- case MA_BEACON :
- formac_online(smc) ;
- break ;
- case MA_DIRECTED :
- directed_beacon(smc) ;
- break ;
- case MA_TREQ :
- /*
- * no actions necessary, TREQ is already set
- */
- break ;
- }
- }
- int sm_mac_get_tx_state(smc)
- struct s_smc *smc ;
- {
- return((inpw(FM_A(FM_STMCHN))>>4)&7) ;
- }
- /*
- * multicast functions
- */
- static struct s_fpmc *mac_get_mc_table(smc,user,own,del,can)
- struct s_smc *smc ;
- struct fddi_addr *user ;
- struct fddi_addr *own ;
- int del ;
- int can ;
- {
- struct s_fpmc *tb ;
- struct s_fpmc *slot ;
- u_char *p ;
- int i ;
- /*
- * set own = can(user)
- */
- *own = *user ;
- if (can) {
- p = own->a ;
- for (i = 0 ; i < 6 ; i++, p++)
- *p = canonical[*p] ;
- }
- slot = 0 ;
- for (i = 0, tb = smc->hw.fp.mc.table ; i < FPMAX_MULTICAST ; i++, tb++){
- if (!tb->n) { /* not used */
- if (!del && !slot) /* if !del save first free */
- slot = tb ;
- continue ;
- }
- if (memcmp((char *)&tb->a,(char *)own,6))
- continue ;
- return(tb) ;
- }
- return(slot) ; /* return first free or NULL */
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;2)
- void mac_clear_multicast(smc)
- struct s_smc *smc ;
- Function DOWNCALL (SMT, fplustm.c)
- Clear all multicast entries
- END_MANUAL_ENTRY()
- */
- void mac_clear_multicast(smc)
- struct s_smc *smc ;
- {
- struct s_fpmc *tb ;
- int i ;
- smc->hw.fp.os_slots_used = 0 ; /* note the SMT addresses */
- /* will not be deleted */
- for (i = 0, tb = smc->hw.fp.mc.table ; i < FPMAX_MULTICAST ; i++, tb++){
- if (!tb->perm) {
- tb->n = 0 ;
- }
- }
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;2)
- int mac_set_func_addr(smc,f_addr)
- struct s_smc *smc ;
- u_long f_addr ;
- Function DOWNCALL (SMT, fplustm.c)
- Set a Token-Ring functional address, the address will
- be activated after calling mac_update_multicast()
- Para f_addr functional bits in non-canonical format
- Returns 0: always success
- END_MANUAL_ENTRY()
- */
- int mac_set_func_addr(smc,f_addr)
- struct s_smc *smc ;
- u_long f_addr ;
- {
- smc->hw.fp.func_addr = f_addr ;
- return(0) ;
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;2)
- int mac_add_multicast(smc,addr,can)
- struct s_smc *smc ;
- struct fddi_addr *addr ;
- int can ;
- Function DOWNCALL (SMC, fplustm.c)
- Add an entry to the multicast table
- Para addr pointer to a multicast address
- can = 0: the multicast address has the physical format
- = 1: the multicast address has the canonical format
- | 0x80 permanent
- Returns 0: success
- 1: address table full
- Note After a 'driver reset' or a 'station set address' all
- entries of the multicast table are cleared.
- In this case the driver has to fill the multicast table again.
- After the operating system dependent module filled
- the multicast table it must call mac_update_multicast
- to activate the new multicast addresses!
- END_MANUAL_ENTRY()
- */
- int mac_add_multicast(smc,addr,can)
- struct s_smc *smc ;
- struct fddi_addr *addr ;
- int can ;
- {
- SK_LOC_DECL(struct fddi_addr,own) ;
- struct s_fpmc *tb ;
- /*
- * check if there are free table entries
- */
- if (can & 0x80) {
- if (smc->hw.fp.smt_slots_used >= SMT_MAX_MULTI) {
- return(1) ;
- }
- }
- else {
- if (smc->hw.fp.os_slots_used >= FPMAX_MULTICAST-SMT_MAX_MULTI) {
- return(1) ;
- }
- }
- /*
- * find empty slot
- */
- if (!(tb = mac_get_mc_table(smc,addr,&own,0,can & ~0x80)))
- return(1) ;
- tb->n++ ;
- tb->a = own ;
- tb->perm = (can & 0x80) ? 1 : 0 ;
- if (can & 0x80)
- smc->hw.fp.smt_slots_used++ ;
- else
- smc->hw.fp.os_slots_used++ ;
- return(0) ;
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;2)
- void mac_del_multicast(smc,addr,can)
- struct s_smc *smc ;
- struct fddi_addr *addr ;
- int can ;
- Function DOWNCALL (SMT, fplustm.c)
- Delete an entry from the multicast table
- Para addr pointer to a multicast address
- can = 0: the multicast address has the physical format
- = 1: the multicast address has the canonical format
- | 0x80 permanent
- END_MANUAL_ENTRY()
- */
- void mac_del_multicast(smc,addr,can)
- struct s_smc *smc ;
- struct fddi_addr *addr ;
- int can ;
- {
- SK_LOC_DECL(struct fddi_addr,own) ;
- struct s_fpmc *tb ;
- if (!(tb = mac_get_mc_table(smc,addr,&own,1,can & ~0x80)))
- return ;
- /*
- * permanent addresses must be deleted with perm bit
- * and vice versa
- */
- if (( tb->perm && (can & 0x80)) ||
- (!tb->perm && !(can & 0x80))) {
- /*
- * delete it
- */
- if (tb->n) {
- tb->n-- ;
- if (tb->perm) {
- smc->hw.fp.smt_slots_used-- ;
- }
- else {
- smc->hw.fp.os_slots_used-- ;
- }
- }
- }
- }
- /*
- * mode
- */
- #define RX_MODE_PROM 0x1
- #define RX_MODE_ALL_MULTI 0x2
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;2)
- void mac_update_multicast(smc)
- struct s_smc *smc ;
- Function DOWNCALL (SMT, fplustm.c)
- Update FORMAC multicast registers
- END_MANUAL_ENTRY()
- */
- void mac_update_multicast(smc)
- struct s_smc *smc ;
- {
- struct s_fpmc *tb ;
- u_char *fu ;
- int i ;
- /*
- * invalidate the CAM
- */
- outpw(FM_A(FM_AFCMD),FM_IINV_CAM) ;
- /*
- * set the functional address
- */
- if (smc->hw.fp.func_addr) {
- fu = (u_char *) &smc->hw.fp.func_addr ;
- outpw(FM_A(FM_AFMASK2),0xffff) ;
- outpw(FM_A(FM_AFMASK1),(u_short) ~((fu[0] << 8) + fu[1])) ;
- outpw(FM_A(FM_AFMASK0),(u_short) ~((fu[2] << 8) + fu[3])) ;
- outpw(FM_A(FM_AFPERS),FM_VALID|FM_DA) ;
- outpw(FM_A(FM_AFCOMP2), 0xc000) ;
- outpw(FM_A(FM_AFCOMP1), 0x0000) ;
- outpw(FM_A(FM_AFCOMP0), 0x0000) ;
- outpw(FM_A(FM_AFCMD),FM_IWRITE_CAM) ;
- }
- /*
- * set the mask and the personality register(s)
- */
- outpw(FM_A(FM_AFMASK0),0xffff) ;
- outpw(FM_A(FM_AFMASK1),0xffff) ;
- outpw(FM_A(FM_AFMASK2),0xffff) ;
- outpw(FM_A(FM_AFPERS),FM_VALID|FM_DA) ;
- for (i = 0, tb = smc->hw.fp.mc.table; i < FPMAX_MULTICAST; i++, tb++) {
- if (tb->n) {
- CHECK_CAM() ;
- /*
- * write the multicast address into the CAM
- */
- outpw(FM_A(FM_AFCOMP2),
- (u_short)((tb->a.a[0]<<8)+tb->a.a[1])) ;
- outpw(FM_A(FM_AFCOMP1),
- (u_short)((tb->a.a[2]<<8)+tb->a.a[3])) ;
- outpw(FM_A(FM_AFCOMP0),
- (u_short)((tb->a.a[4]<<8)+tb->a.a[5])) ;
- outpw(FM_A(FM_AFCMD),FM_IWRITE_CAM) ;
- }
- }
- }
- /*
- BEGIN_MANUAL_ENTRY(if,func;others;3)
- void mac_set_rx_mode(smc,mode)
- struct s_smc *smc ;
- int mode ;
- Function DOWNCALL/INTERN (SMT, fplustm.c)
- This function enables / disables the selected receive.
- Don't call this function if the hardware module is
- used -- use mac_drv_rx_mode() instead of.
- Para mode = 1 RX_ENABLE_ALLMULTI enable all multicasts
- 2 RX_DISABLE_ALLMULTI disable "enable all multicasts"
- 3 RX_ENABLE_PROMISC enable promiscous
- 4 RX_DISABLE_PROMISC disable promiscous
- 5 RX_ENABLE_NSA enable reception of NSA frames
- 6 RX_DISABLE_NSA disable reception of NSA frames
- Note The selected receive modes will be lost after 'driver reset'
- or 'set station address'
- END_MANUAL_ENTRY
- */
- void mac_set_rx_mode(smc,mode)
- struct s_smc *smc ;
- int mode ;
- {
- switch (mode) {
- case RX_ENABLE_ALLMULTI :
- smc->hw.fp.rx_prom |= RX_MODE_ALL_MULTI ;
- break ;
- case RX_DISABLE_ALLMULTI :
- smc->hw.fp.rx_prom &= ~RX_MODE_ALL_MULTI ;
- break ;
- case RX_ENABLE_PROMISC :
- smc->hw.fp.rx_prom |= RX_MODE_PROM ;
- break ;
- case RX_DISABLE_PROMISC :
- smc->hw.fp.rx_prom &= ~RX_MODE_PROM ;
- break ;
- case RX_ENABLE_NSA :
- smc->hw.fp.nsa_mode = FM_MDAMA ;
- smc->hw.fp.rx_mode = (smc->hw.fp.rx_mode & ~FM_ADDET) |
- smc->hw.fp.nsa_mode ;
- break ;
- case RX_DISABLE_NSA :
- smc->hw.fp.nsa_mode = FM_MRNNSAFNMA ;
- smc->hw.fp.rx_mode = (smc->hw.fp.rx_mode & ~FM_ADDET) |
- smc->hw.fp.nsa_mode ;
- break ;
- }
- if (smc->hw.fp.rx_prom & RX_MODE_PROM) {
- smc->hw.fp.rx_mode = FM_MLIMPROM ;
- }
- else if (smc->hw.fp.rx_prom & RX_MODE_ALL_MULTI) {
- smc->hw.fp.rx_mode = smc->hw.fp.nsa_mode | FM_EXGPA0 ;
- }
- else
- smc->hw.fp.rx_mode = smc->hw.fp.nsa_mode ;
- SETMASK(FM_A(FM_MDREG1),smc->hw.fp.rx_mode,FM_ADDRX) ;
- mac_update_multicast(smc) ;
- }
- /*
- BEGIN_MANUAL_ENTRY(module;tests;3)
- How to test the Restricted Token Monitor
- ----------------------------------------------------------------
- o Insert a break point in the function rtm_irq()
- o Remove all stations with a restricted token monitor from the
- network.
- o Connect a UPPS ISA or EISA station to the network.
- o Give the FORMAC of UPPS station the command to send
- restricted tokens until the ring becomes instable.
- o Now connect your test test client.
- o The restricted token monitor should detect the restricted token,
- and your break point will be reached.
- o You can ovserve how the station will clean the ring.
- END_MANUAL_ENTRY
- */
- void rtm_irq(smc)
- struct s_smc *smc ;
- {
- outpw(ADDR(B2_RTM_CRTL),TIM_CL_IRQ) ; /* clear IRQ */
- if (inpw(ADDR(B2_RTM_CRTL)) & TIM_RES_TOK) {
- outpw(FM_A(FM_CMDREG1),FM_ICL) ; /* force claim */
- DB_RMT("RMT: fddiPATHT_Rmode expiredn",0,0) ;
- AIX_EVENT(smc, (u_long) FDDI_RING_STATUS,
- (u_long) FDDI_SMT_EVENT,
- (u_long) FDDI_RTT, smt_get_event_word(smc));
- }
- outpw(ADDR(B2_RTM_CRTL),TIM_START) ; /* enable RTM monitoring */
- }
- static void rtm_init(smc)
- struct s_smc *smc ;
- {
- outpd(ADDR(B2_RTM_INI),0) ; /* timer = 0 */
- outpw(ADDR(B2_RTM_CRTL),TIM_START) ; /* enable IRQ */
- }
- void rtm_set_timer(smc)
- struct s_smc *smc ;
- {
- /*
- * MIB timer and hardware timer have the same resolution of 80nS
- */
- DB_RMT("RMT: setting new fddiPATHT_Rmode, t = %d ns n",
- (int) smc->mib.a[PATH0].fddiPATHT_Rmode,0) ;
- outpd(ADDR(B2_RTM_INI),smc->mib.a[PATH0].fddiPATHT_Rmode) ;
- }
- static void smt_split_up_fifo(smc)
- struct s_smc *smc ;
- {
- /*
- BEGIN_MANUAL_ENTRY(module;mem;1)
- -------------------------------------------------------------
- RECEIVE BUFFER MEMORY DIVERSION
- -------------------------------------------------------------
- R1_RxD == SMT_R1_RXD_COUNT
- R2_RxD == SMT_R2_RXD_COUNT
- SMT_R1_RXD_COUNT must be unequal zero
- | R1_RxD R2_RxD |R1_RxD R2_RxD | R1_RxD R2_RxD
- | x 0 | x 1-3 | x < 3
- ----------------------------------------------------------------------
- | 63,75 kB | 54,75 | R1_RxD
- rx queue 1 | RX_FIFO_SPACE | RX_LARGE_FIFO| ------------- * 63,75 kB
- | | | R1_RxD+R2_RxD
- ----------------------------------------------------------------------
- | | 9 kB | R2_RxD
- rx queue 2 | 0 kB | RX_SMALL_FIFO| ------------- * 63,75 kB
- | (not used) | | R1_RxD+R2_RxD
- END_MANUAL_ENTRY
- */
- if (SMT_R1_RXD_COUNT == 0) {
- SMT_PANIC(smc,SMT_E0117, SMT_E0117_MSG) ;
- }
- switch(SMT_R2_RXD_COUNT) {
- case 0:
- smc->hw.fp.fifo.rx1_fifo_size = RX_FIFO_SPACE ;
- smc->hw.fp.fifo.rx2_fifo_size = 0 ;
- break ;
- case 1:
- case 2:
- case 3:
- smc->hw.fp.fifo.rx1_fifo_size = RX_LARGE_FIFO ;
- smc->hw.fp.fifo.rx2_fifo_size = RX_SMALL_FIFO ;
- break ;
- default: /* this is not the real defaule */
- smc->hw.fp.fifo.rx1_fifo_size = RX_FIFO_SPACE *
- SMT_R1_RXD_COUNT/(SMT_R1_RXD_COUNT+SMT_R2_RXD_COUNT) ;
- smc->hw.fp.fifo.rx2_fifo_size = RX_FIFO_SPACE *
- SMT_R2_RXD_COUNT/(SMT_R1_RXD_COUNT+SMT_R2_RXD_COUNT) ;
- break ;
- }
- /*
- BEGIN_MANUAL_ENTRY(module;mem;1)
- -------------------------------------------------------------
- TRANSMIT BUFFER MEMORY DIVERSION
- -------------------------------------------------------------
- | no sync bw | sync bw available and | sync bw available and
- | available | SynchTxMode = SPLIT | SynchTxMode = ALL
- -----------------------------------------------------------------------
- sync tx | 0 kB | 32 kB | 55 kB
- queue | | TX_MEDIUM_FIFO | TX_LARGE_FIFO
- -----------------------------------------------------------------------
- async tx | 64 kB | 32 kB | 9 k
- queue | TX_FIFO_SPACE| TX_MEDIUM_FIFO | TX_SMALL_FIFO
- END_MANUAL_ENTRY
- */
- /*
- * set the tx mode bits
- */
- if (smc->mib.a[PATH0].fddiPATHSbaPayload) {
- #ifdef ESS
- smc->hw.fp.fifo.fifo_config_mode |=
- smc->mib.fddiESSSynchTxMode | SYNC_TRAFFIC_ON ;
- #endif
- }
- else {
- smc->hw.fp.fifo.fifo_config_mode &=
- ~(SEND_ASYNC_AS_SYNC|SYNC_TRAFFIC_ON) ;
- }
- /*
- * split up the FIFO
- */
- if (smc->hw.fp.fifo.fifo_config_mode & SYNC_TRAFFIC_ON) {
- if (smc->hw.fp.fifo.fifo_config_mode & SEND_ASYNC_AS_SYNC) {
- smc->hw.fp.fifo.tx_s_size = TX_LARGE_FIFO ;
- smc->hw.fp.fifo.tx_a0_size = TX_SMALL_FIFO ;
- }
- else {
- smc->hw.fp.fifo.tx_s_size = TX_MEDIUM_FIFO ;
- smc->hw.fp.fifo.tx_a0_size = TX_MEDIUM_FIFO ;
- }
- }
- else {
- smc->hw.fp.fifo.tx_s_size = 0 ;
- smc->hw.fp.fifo.tx_a0_size = TX_FIFO_SPACE ;
- }
- smc->hw.fp.fifo.rx1_fifo_start = smc->hw.fp.fifo.rbc_ram_start +
- RX_FIFO_OFF ;
- smc->hw.fp.fifo.tx_s_start = smc->hw.fp.fifo.rx1_fifo_start +
- smc->hw.fp.fifo.rx1_fifo_size ;
- smc->hw.fp.fifo.tx_a0_start = smc->hw.fp.fifo.tx_s_start +
- smc->hw.fp.fifo.tx_s_size ;
- smc->hw.fp.fifo.rx2_fifo_start = smc->hw.fp.fifo.tx_a0_start +
- smc->hw.fp.fifo.tx_a0_size ;
- DB_SMT("FIFO split: mode = %xn",smc->hw.fp.fifo.fifo_config_mode,0) ;
- DB_SMT("rbc_ram_start = %x rbc_ram_end = %xn",
- smc->hw.fp.fifo.rbc_ram_start, smc->hw.fp.fifo.rbc_ram_end) ;
- DB_SMT("rx1_fifo_start = %x tx_s_start = %xn",
- smc->hw.fp.fifo.rx1_fifo_start, smc->hw.fp.fifo.tx_s_start) ;
- DB_SMT("tx_a0_start = %x rx2_fifo_start = %xn",
- smc->hw.fp.fifo.tx_a0_start, smc->hw.fp.fifo.rx2_fifo_start) ;
- }
- void formac_reinit_tx(smc)
- struct s_smc *smc ;
- {
- /*
- * Split up the FIFO and reinitialize the MAC if synchronous
- * bandwidth becomes available but no synchronous queue is
- * configured.
- */
- if (!smc->hw.fp.fifo.tx_s_size && smc->mib.a[PATH0].fddiPATHSbaPayload){
- (void)init_mac(smc,0) ;
- }
- }