78 static void queue_llc_rx(struct s_smc *smc, SMbuf *mb);
79 static void smt_to_llc(struct s_smc *smc, SMbuf *mb);
82 static void queue_txd_mb(struct s_smc *smc, SMbuf *mb);
141 void smt_free_mbuf(struct s_smc *smc, SMbuf *mb);
281 	smc->os.hwm.mbuf_pool.mb_start=(SMbuf *)(&smc->os.hwm.mbuf_pool.mb[0]) ;  in mac_drv_init()
424 	SMbuf	*mb ;  in init_fddi_driver()  local
434 	mb = smc->os.hwm.mbuf_pool.mb_start ;  in init_fddi_driver()
437 		mb->sm_use_count = 1 ;  in init_fddi_driver()
438 		smt_free_mbuf(smc,mb)	;  in init_fddi_driver()
439 		mb++ ;  in init_fddi_driver()
442 	mb = mb_start ;  in init_fddi_driver()
446 			mb->sm_use_count = 1 ;  in init_fddi_driver()
447 			smt_free_mbuf(smc,mb)	;  in init_fddi_driver()
448 			mb++ ;  in init_fddi_driver()
488 	register SMbuf	*mb ;  in smt_get_mbuf()  local
491 	mb = smc->os.hwm.mbuf_pool.mb_free ;  in smt_get_mbuf()
493 	mb = mb_free ;  in smt_get_mbuf()
495 	if (mb) {  in smt_get_mbuf()
497 		smc->os.hwm.mbuf_pool.mb_free = mb->sm_next ;  in smt_get_mbuf()
499 		mb_free = mb->sm_next ;  in smt_get_mbuf()
501 		mb->sm_off = 8 ;  in smt_get_mbuf()
502 		mb->sm_use_count = 1 ;  in smt_get_mbuf()
504 	DB_GEN("get SMbuf: mb = %x",(void *)mb,0,3) ;  in smt_get_mbuf()
505 	return mb;	/* May be NULL */  in smt_get_mbuf()
508 void smt_free_mbuf(struct s_smc *smc, SMbuf *mb)  in smt_free_mbuf()  argument
511 	if (mb) {  in smt_free_mbuf()
512 		mb->sm_use_count-- ;  in smt_free_mbuf()
513 		DB_GEN("free_mbuf: sm_use_count = %d",mb->sm_use_count,0,3) ;  in smt_free_mbuf()
519 		if (!mb->sm_use_count) {  in smt_free_mbuf()
520 			DB_GEN("free SMbuf: mb = %x",(void *)mb,0,3) ;  in smt_free_mbuf()
522 			mb->sm_next = smc->os.hwm.mbuf_pool.mb_free ;  in smt_free_mbuf()
523 			smc->os.hwm.mbuf_pool.mb_free = mb ;  in smt_free_mbuf()
525 			mb->sm_next = mb_free ;  in smt_free_mbuf()
526 			mb_free = mb ;  in smt_free_mbuf()
713 	SMbuf		*mb ;  in fddi_isr()  local
849 		while ((mb = get_llc_rx(smc))) {  in fddi_isr()
850 			smt_to_llc(smc,mb) ;  in fddi_isr()
856 		while (!offDepth && (mb = get_llc_rx(smc))) {  in fddi_isr()
857 			smt_to_llc(smc,mb) ;  in fddi_isr()
1055 	SMbuf *mb ;  in process_receive()  local
1266 			if (!(mb = smt_get_mbuf(smc))) {  in process_receive()
1271 			data = smtod(mb,char *) - 1 ;  in process_receive()
1285 			data = smtod(mb,char *) - 1 ;  in process_receive()
1287 			fc = *(char *)mb->sm_data = *data ;  in process_receive()
1288 			mb->sm_len = len - 1 ;		/* len - fc */  in process_receive()
1309 				smt_received_pack(smc,mb,(int)(rfsw>>25)) ;  in process_receive()
1330 				smt_received_pack(smc,mb,(int)(rfsw>>25)) ;  in process_receive()
1342 				smt_free_mbuf(smc,mb) ;  in process_receive()
1349 				smt_free_mbuf(smc,mb) ;  in process_receive()
1380 static void smt_to_llc(struct s_smc *smc, SMbuf *mb)  in smt_to_llc()  argument
1385 	smc->os.hwm.r.len = mb->sm_len ;  in smt_to_llc()
1386 	smc->os.hwm.r.mb_pos = smtod(mb,char *) ;  in smt_to_llc()
1388 	(void)mac_drv_rx_init(smc,(int)mb->sm_len,(int)fc,  in smt_to_llc()
1389 		smc->os.hwm.r.mb_pos,(int)mb->sm_len) ;  in smt_to_llc()
1390 	smt_free_mbuf(smc,mb) ;  in smt_to_llc()
1734 static void queue_llc_rx(struct s_smc *smc, SMbuf *mb)  in queue_llc_rx()  argument
1736 	DB_GEN("queue_llc_rx: mb = %x",(void *)mb,0,4) ;  in queue_llc_rx()
1738 	mb->sm_next = (SMbuf *)NULL ;  in queue_llc_rx()
1740 		smc->os.hwm.llc_rx_pipe = mb ;  in queue_llc_rx()
1743 		smc->os.hwm.llc_rx_tail->sm_next = mb ;  in queue_llc_rx()
1745 	smc->os.hwm.llc_rx_tail = mb ;  in queue_llc_rx()
1760 	SMbuf	*mb ;  in get_llc_rx()  local
1762 	if ((mb = smc->os.hwm.llc_rx_pipe)) {  in get_llc_rx()
1764 		smc->os.hwm.llc_rx_pipe = mb->sm_next ;  in get_llc_rx()
1766 	DB_GEN("get_llc_rx: mb = 0x%x",(void *)mb,0,4) ;  in get_llc_rx()
1767 	return mb;  in get_llc_rx()
1774 static void queue_txd_mb(struct s_smc *smc, SMbuf *mb)  in queue_txd_mb()  argument
1776 	DB_GEN("_rx: queue_txd_mb = %x",(void *)mb,0,4) ;  in queue_txd_mb()
1778 	mb->sm_next = (SMbuf *)NULL ;  in queue_txd_mb()
1780 		smc->os.hwm.txd_tx_pipe = mb ;  in queue_txd_mb()
1783 		smc->os.hwm.txd_tx_tail->sm_next = mb ;  in queue_txd_mb()
1785 	smc->os.hwm.txd_tx_tail = mb ;  in queue_txd_mb()
1793 	SMbuf *mb ;  in get_txd_mb()  local
1795 	if ((mb = smc->os.hwm.txd_tx_pipe)) {  in get_txd_mb()
1797 		smc->os.hwm.txd_tx_pipe = mb->sm_next ;  in get_txd_mb()
1799 	DB_GEN("get_txd_mb: mb = 0x%x",(void *)mb,0,4) ;  in get_txd_mb()
1800 	return mb;  in get_txd_mb()
1806 void smt_send_mbuf(struct s_smc *smc, SMbuf *mb, int fc)  in smt_send_mbuf()  argument
1821 	NDD_TRACE("THSB",mb,fc,0) ;  in smt_send_mbuf()
1822 	DB_TX("smt_send_mbuf: mb = 0x%x, fc = 0x%x",mb,fc,4) ;  in smt_send_mbuf()
1824 	mb->sm_off-- ;	/* set to fc */  in smt_send_mbuf()
1825 	mb->sm_len++ ;	/* + fc */  in smt_send_mbuf()
1826 	data = smtod(mb,char *) ;  in smt_send_mbuf()
1835 	len = mb->sm_len ;  in smt_send_mbuf()
1870 			smt_free_mbuf(smc,mb) ;  in smt_send_mbuf()
1877 		mb->sm_use_count = 2 ;  in smt_send_mbuf()
1888 					(((__u32)(mb->sm_len-1)&3) << 27)) ;  in smt_send_mbuf()
1911 		queue_txd_mb(smc,mb) ;  in smt_send_mbuf()
1916 		queue_llc_rx(smc,mb) ;  in smt_send_mbuf()
1946 	SMbuf *mb ;  in mac_drv_clear_txd()  local
1986 				mb = get_txd_mb(smc) ;  in mac_drv_clear_txd()
1987 				smt_free_mbuf(smc,mb) ;  in mac_drv_clear_txd()