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Diffstat (limited to 'sys/dev/hfa/fore_timer.c')
| -rw-r--r-- | sys/dev/hfa/fore_timer.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sys/dev/hfa/fore_timer.c b/sys/dev/hfa/fore_timer.c new file mode 100644 index 000000000000..51745ac9336f --- /dev/null +++ b/sys/dev/hfa/fore_timer.c @@ -0,0 +1,116 @@ +/*- + * =================================== + * HARP | Host ATM Research Platform + * =================================== + * + * This Host ATM Research Platform ("HARP") file (the "Software") is + * made available by Network Computing Services, Inc. ("NetworkCS") + * "AS IS". NetworkCS does not provide maintenance, improvements or + * support of any kind. + * + * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, + * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE + * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE. + * In no event shall NetworkCS be responsible for any damages, including + * but not limited to consequential damages, arising from or relating to + * any use of the Software or related support. + * + * Copyright 1994-1998 Network Computing Services, Inc. + * + * Copies of this Software may be made, however, the above copyright + * notice must be reproduced on all copies. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * FORE Systems 200-Series Adapter Support + * --------------------------------------- + * + * Timer processing + * + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <net/if.h> +#include <netatm/port.h> +#include <netatm/queue.h> +#include <netatm/atm.h> +#include <netatm/atm_sys.h> +#include <netatm/atm_sap.h> +#include <netatm/atm_cm.h> +#include <netatm/atm_if.h> +#include <netatm/atm_stack.h> +#include <netatm/atm_pcb.h> +#include <netatm/atm_var.h> +#include <dev/pci/pcivar.h> +#include <dev/hfa/fore.h> +#include <dev/hfa/fore_aali.h> +#include <dev/hfa/fore_slave.h> +#include <dev/hfa/fore_stats.h> +#include <dev/hfa/fore_var.h> +#include <dev/hfa/fore_include.h> + +#ifndef lint +__RCSID("@(#) $FreeBSD$"); +#endif + + +/* + * Process a Fore timer tick + * + * This function is called every FORE_TIME_TICK seconds in order to update + * all of the unit watchdog timers. + * + * Called at splnet. + * + * Arguments: + * tip pointer to fore timer control block + * + * Returns: + * none + * + */ +void +fore_timeout(tip) + struct atm_time *tip; +{ + Fore_unit *fup; + int i; + + + /* + * Schedule next timeout + */ + atm_timeout(&fore_timer, ATM_HZ * FORE_TIME_TICK, fore_timeout); + + /* + * Run through all units, updating each active timer. + * If an expired timer is found, notify that unit. + */ + for (i = 0; i < fore_nunits; i++) { + + if ((fup = fore_units[i]) == NULL) + continue; + + /* + * Decrement timer, if it's active + */ + if (fup->fu_timer && (--fup->fu_timer == 0)) { + + /* + * Timeout occurred - go check out the queues + */ + ATM_DEBUG0("fore_timeout\n"); + DEVICE_LOCK((Cmn_unit *)fup); + fore_watchdog(fup); + DEVICE_UNLOCK((Cmn_unit *)fup); + } + } +} + |