Here is how to decode the Sun Fire E25K IO Boat locations. This is useful if you are trying to jumpstart a domain that has multiple ethernet cards in it. (Note even if you only have 1 physical card, there are other “ethernet” devices on the back side for the MAN and I2 networks).<\/p>\n
So lets take this example. Here is the out put of show-nets from a domain.<\/p>\n
{80} ok show-nets
\na) \/pci@bd,700000\/network@1
\nb) \/pci@bc,700000\/network@3,1
\nc) \/pci@bc,700000\/pci@1\/network@1
\nd) \/pci@bc,700000\/pci@1\/network@0
\ne) \/pci@9d,700000\/network@1
\nf) \/pci@9c,700000\/network@3,1
\ng) \/pci@9c,700000\/pci@1\/network@1
\nh) \/pci@9c,700000\/pci@1\/network@0<\/p>\n
The first step is to convert the hexadecimal agent id into binary. The agent id in the above example (line h for reference) is 9c. So 9c in binary is 00 1001 1100. The last 5 bits identify the IOC chip. A value of 0x1c is IOC0, whereas 0x1d is IOC1. So in the above, the last 5 bits is 11100 = 1c. The remaining first 5 bits of the agent id converted from binary to decimal will tell you the expander board. So 00 100 = 4 in decimal. So from this we can tell that the network card is in Expander 4 and IOC 0.<\/p>\n
Next is to identify the bus, that is the part after the , in the above example they are all 700000, which is bus B. Whereas 600000 is bus A.<\/p>\n
Bus A is the 33\/66-MHz, where as Bus B is the 33MHz.<\/p>\n
So as you are looking at an IO expander the B bus is the top 2 slots, and the A bus is the bottom 2 slots. The IO bridge 0 is the right and the IO bridge 1 is the left side.<\/p>\n
So in our example this Card is in the Top Right slot of the IO boat in expander board 4. Next since this card has 2 ports, you will see a network@0, and network@1. Which correspond to the port 0 and 1 on the card (which happens to be a dual port ethernet\/scsi card).<\/p>\n
Now that I have explained how it works, here is a quick cheat sheet:<\/p>\n
| Device Agent ID<\/th>\n | Expander board<\/th>\n<\/tr>\n |
|---|---|
| 1c<\/td>\n | 0<\/td>\n<\/tr>\n |
| 3c<\/td>\n | 1<\/td>\n<\/tr>\n |
| 5c<\/td>\n | 2<\/td>\n<\/tr>\n |
| 7c<\/td>\n | 3<\/td>\n<\/tr>\n |
| 9c<\/td>\n | 4<\/td>\n<\/tr>\n |
| bc<\/td>\n | 5<\/td>\n<\/tr>\n |
| dc<\/td>\n | 6<\/td>\n<\/tr>\n |
| fc<\/td>\n | 7<\/td>\n<\/tr>\n |
| 11c<\/td>\n | 8<\/td>\n<\/tr>\n |
| 13c <\/td>\n | 9<\/td>\n<\/tr>\n |
| 15c <\/td>\n | 10<\/td>\n<\/tr>\n |
| 17c <\/td>\n | 11<\/td>\n<\/tr>\n |
| 19c <\/td>\n | 12<\/td>\n<\/tr>\n |
| 1bc <\/td>\n | 13<\/td>\n<\/tr>\n |
| 1dc <\/td>\n | 14<\/td>\n<\/tr>\n |
| 1fc <\/td>\n | 15<\/td>\n<\/tr>\n |
| 21c <\/td>\n | 16<\/td>\n<\/tr>\n |
| 23c <\/td>\n | 17<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Here is how to decode the Sun Fire E25K IO Boat locations. This is useful if you are trying to jumpstart a domain that has multiple ethernet cards in it. (Note even if you only have 1 physical card, there are other “ethernet” devices on the back side for the MAN and I2 networks). So … <\/p>\n |