diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 55e0b2875f9..e3892585d7e 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -621,20 +621,35 @@ ahc_linux_target_alloc(struct scsi_target *starget) memset(targ, 0, sizeof(*targ)); if (sc) { + int maxsync = AHC_SYNCRATE_DT; + int ultra = 0; + int flags = sc->device_flags[target_offset]; + + if (ahc->flags & AHC_NEWEEPROM_FMT) { + if (flags & CFSYNCHISULTRA) + ultra = 1; + } else if (flags & CFULTRAEN) + ultra = 1; + /* AIC nutcase; 10MHz appears as ultra = 1, CFXFER = 0x04 + * change it to ultra=0, CFXFER = 0 */ + if(ultra && (flags & CFXFER) == 0x04) { + ultra = 0; + flags &= ~CFXFER; + } + if ((ahc->features & AHC_ULTRA2) != 0) { - scsirate = sc->device_flags[target_offset] & CFXFER; + scsirate = (flags & CFXFER) | (ultra ? 0x8 : 0); } else { - scsirate = (sc->device_flags[target_offset] & CFXFER) << 4; - if (sc->device_flags[target_offset] & CFSYNCH) - scsirate |= SOFS; + scsirate = (flags & CFXFER) << 4; + maxsync = ultra ? AHC_SYNCRATE_ULTRA : + AHC_SYNCRATE_FAST; } - if (sc->device_flags[target_offset] & CFWIDEB) { - scsirate |= WIDEXFER; - spi_max_width(starget) = 1; - } else - spi_max_width(starget) = 0; + spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0; + if (!(flags & CFSYNCH)) + spi_max_offset(starget) = 0; spi_min_period(starget) = - ahc_find_period(ahc, scsirate, AHC_SYNCRATE_DT); + ahc_find_period(ahc, scsirate, maxsync); + tinfo = ahc_fetch_transinfo(ahc, channel, ahc->our_id, starget->id, &tstate); } |