LDOM:How to adjusting the Interrupt Limit (Doc ID 2363686.1)

Last updated on MARCH 12, 2018

Applies to:

Goal

# echo "00000600356f3cf0::irmreqs" | mdb -k
ADDR             OWNER  TYPE CALLBACK NINTRS NREQ NAVAIL
00000600393e0890 igb#18 MSI-X   NO     10     5     5
0000060038906048 igb#12 MSI-X   NO     10     5     5
000006003890aeb8 igb#23 MSI-X   NO     10     5     5
0000060038905098 igb#27 MSI-X   NO     10     5     5
0000060038906548 igb#20 MSI-X   NO     10     5     5
000006003890b598 igb#13 MSI-X   NO     10     5     5
00000600350492c0 igb#19 MSI-X   NO     10     5     5
0000060035e48050 igb#26 MSI-X   NO     10     5     5
0000060035934718 igb#15 MSI-X   NO     10     5     5
0000060035934318 igb#22 MSI-X   NO     10     5     5
0000060035502618 igb#17 MSI-X   NO     10     5     5
0000060035934ee8 igb#24 MSI-X   NO     10     5     5
000006003d819090 igb#21 MSI     NO      1     1     1
0000060030819660 igb#14 MSI     NO      1     1     1
0000060036110008 igb#25 MSI     NO      1     1     1

1) Why do igb NICs require a lot more interrupts other sas or fc devices?  
2) Please explain NINTRS, NREQ, NAVAIL items.
3) What is the difference between MSI-X and MSI in TYPE?
4) Is there any problem in system operation even if the value is changed?
 

Solution

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