dev/aic7xxx/aic7xxx.c

118       /* ultra2    fast/ultra  period     rate */
152 						u_int *period,
169 					   u_int period, u_int offset);
175 					  u_int period, u_int offset,
1336 						/*period*/0, /*offset*/0,
1634  * this function finds the nearest syncrate to the input period limited
1641 			u_int *period, u_int *ppr_options, role_t role)
1662 	 * period otherwise we may allow a target initiated
1679 	if (transinfo->period == 0) {
1680 		*period = 0;
1684 	*period = MAX(*period, transinfo->period);
1685 	return (ahc_find_syncrate(ahc, period, ppr_options, maxsync));
1689  * Look up the valid period to SCSIRATE conversion in our table.
1690  * Return the period and offset that should be sent to the target
1694 ahc_find_syncrate(struct ahc_softc *ahc, u_int *period,
1718 		if (*period <= syncrate->period) {
1726 			 * if the period we use to send data to it
1727 			 * is lower.  Only lower the response period
1731 				*period = syncrate->period;
1743 	if ((*period == 0)
1748 		*period = 0;
1757  * sync "period" factor.
1775 				return (syncrate->period);
1777 				return (syncrate->period);
1867 		tinfo->curr.period = AHC_PERIOD_UNKNOWN;
1870 	if (tinfo->curr.period != tinfo->goal.period
1895 		 struct ahc_syncrate *syncrate, u_int period,
1910 		period = 0;
1918 		tinfo->user.period = period;
1924 		tinfo->goal.period = period;
1929 	old_period = tinfo->curr.period;
1934 	 && (old_period != period
1982 		tinfo->curr.period = period;
2371 	u_int	period;
2378 	 * Filter our period based on the current connection.
2383 	period = tinfo->goal.period;
2389 	rate = ahc_devlimited_syncrate(ahc, tinfo, &period,
2392 	dosync = tinfo->curr.offset != offset || tinfo->curr.period != period;
2440 			ahc_construct_ppr(ahc, devinfo, period, offset,
2443 			ahc_construct_sdtr(ahc, devinfo, period, offset);
2456 		   u_int period, u_int offset)
2459 		period = AHC_ASYNC_XFER_PERIOD;
2463 	ahc->msgout_buf[ahc->msgout_index++] = period;
2467 		printf("(%s:%c:%d:%d): Sending SDTR period %x, offset %x\n",
2469 		       devinfo->lun, period, offset);
2499 		  u_int period, u_int offset, u_int bus_width,
2503 		period = AHC_ASYNC_XFER_PERIOD;
2507 	ahc->msgout_buf[ahc->msgout_index++] = period;
2514 		printf("(%s:%c:%d:%d): Sending PPR bus_width %x, period %x, "
2517 		       bus_width, period, offset, ppr_options);
3112 			u_int	 period;
3132 			period = ahc->msgin_buf[3];
3135 			syncrate = ahc_devlimited_syncrate(ahc, tinfo, &period,
3143 				       "SDTR period %x, offset %x\n\t"
3144 				       "Filtered to period %x, offset %x\n",
3148 				       period, offset);
3151 					 syncrate, period,
3181 						   period, offset);
3286 			u_int	period;
3309 			period = ahc->msgin_buf[3];
3316 			 * period factor with no DT option
3320 			 && period == 9)
3336 			syncrate = ahc_devlimited_syncrate(ahc, tinfo, &period,
3353 					period = 0;
3372 				ahc_construct_ppr(ahc, devinfo, period, offset,
3379 				       "period %x, offset %x,options %x\n"
3380 				       "\tFiltered to width %x, period %x, "
3386 				       bus_width, period, offset, ppr_options);
3392 					 syncrate, period,
3546 		ahc_set_syncrate(ahc, devinfo, /*syncrate*/NULL, /*period*/0,
3825 			 /*period*/0, /*offset*/0, /*ppr_options*/0,
5037 			tinfo->user.period = ahc_syncrates->period;
5068 				tinfo->user.period =
5071 					tinfo->user.period = 0;
5085 				tinfo->user.period =
5090 				if (tinfo->user.period != 0)
5093 			if (tinfo->user.period == 0)
6153 					 /*period*/0, /*offset*/0,