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RFC: mpsafe bridge and NIC drivers (vioif and wm)
We're working on making the network stack
(mainly below L3) and device drivers MP-safe.
This RFC is one of the efforts, making bridge
(but STP), vioif and wm MP-safe. Bridging
(L2 forwarding) works in parallel.
The patch set can be found here:
Note that applying only this patch has less
fun because all interrupts are delivered to
CPU#0 so that bridge's softint runs on only
the CPU. Please apply another patch set (*);
it allows to change a destination CPU of an
IRQ to a CPU but CPU#0. The following example
changes the destination CPU of IRQ#22 to
sysctl -w kern.cpu_affinity.irq="22:2"
With the patch set you can fully try the above
Any comments are appreciated.
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