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WRITING A DRIVER
error because if a subsequent command is queued in the FUNNEL queue or the
wait queue, no busy error is given.
In average, a device could have one packet in FUNNEL queue, four packets in wait queue, and an active command in attach table.
INTERFACE RULE SUMMARY FOR SCSI FIRMWARE USERS WITH MULTIPLE CALLERS:
A typical system with multiple callers may have the following interfaces:
1.Disk driver: Handles all requests for SCSI disks.
2.Tape driver: Handles all requests for SCSI tapes.
3.TARGET LUN 0 service handler: Services requests for SCSI device level for the MVME147 as a TARGET and services logical unit 0 of the MVME147
TARGET.
4.TARGET LUN 1 service handler: Services requests for logical unit 1 of the MVME147 TARGET.
5.TARGET LUN 2 service handler: Services requests for logical unit 2 of the MVME147 TARGET.
6.TARGET LUN 3 service handler: Services requests for logical unit 3 of the MVME147 TARGET.
7.TARGET LUN 4 service handler: Services requests for logical unit 4 of the MVME147 TARGET.
8.TARGET LUN 5 service handler: Services requests for logical unit 5 of the MVME147 TARGET.
