Avago Technologies LSI20320 - Manual (Page 23)

Fusion-MPT FCode Fibre Channel Commands 17
Copyright © 2000-2004 by LSI Logic Corporation. All rights reserved.
4.3.3 show-children
While the adapter or port is selected, use the show-children command
to display the devices currently connected to this adapter:
Select the port or adapter shown (use the port name your system
assigns):
ok select /pci@8,700000/IntraServer,fc@1
ok show-children
MPT Version 1.00, Firmware Version 1.02.00
Link is ready, port is online
WWN 100000a0b8040353 Port ID ef
Target 0
Unit 0 Disk SEAGATE ST39173FC 6615
WWN 2100002037109d76 Port ID d9
Target 1
Unit 0 Disk SEAGATE ST39173FC 6615
WWN 210000203710565a Port ID 17
Target 2
Unit 0 Disk SEAGATE ST39173FC 6615
WWN 2100002037105212 Port ID 1
Target 3
Unit 0 Disk SEAGATE ST39173FC 6615
WWN 2100002037103da8 Port ID 26
Target 4
Unit 0 Disk SEAGATE ST39173FC 6615
WWN 210000203710324a Port ID 73
4.4 Interrupt Coalescing
Interrupt coalescing allows the firmware on the Fusion-MPT device to
group I/Os together in order to minimize the overhead to the host system.
This feature can result in significant performance benefits when I/Os are
coming into the adapter rapidly—for example, when performing small
sequential reads from a disk.
LSI Logic has tested interrupt coalescing under multiple I/O conditions
and has determined that the following interrupt coalescing values are
beneficial over a wide range of I/O conditions:
•
timeout = 160 microseconds