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6–Linux Driver Installation and Configuration
Inbox Kernel GPL Driver and Blacklisting
6-4 NE0154601-00 A
The output of this command is similar to the following:
[root@apps4242 ~]# cat /proc/interrupts
CPU0 CPU1
58: 164 7 PCI-MSI-X eth2
66: 0 0 PCI-MSI-X eth2:1
74: 6 0 PCI-MSI-X eth2:2
82: 0 0 PCI-MSI-X eth2:3
122: 3195 0 PCI-MSI-X eth3
130: 0 0 PCI-MSI-X eth3:1
138: 0 0 PCI-MSI-X eth3:2
146: 0 0 PCI-MSI-X eth3:3
Check for Receive Side Scaling (RSS) Support
To support RSS, each port has four MSI-X interrupts to send interrupts to any
CPU.
Inbox Kernel GPL Driver and Blacklisting
NOTE:
Some older Linux kernel versions may not support MSI-X.
NOTE:
MSI-X support is required for RSS.
NOTE:
There are two drivers for the QLogic adapter:
netxen_nic.ko. This is the in-kernel (inbox) GPL driver. It is released
into the Linux upstream kernel and included in major Linux distributions.
nx_nic. This is the commercial GPL driver released by QLogic.