CVSROOT: /cvs
Module name: src
Changes by: d...@cvs.openbsd.org 2020/06/24 22:37:30
Modified files:
sys/dev/pci : if_ixl.c files.pci
Log message:
use intrmap to set up multiple queues across multiple cpus.
ixl(4) is only enabled on amd64 and sparc64, and both of them now
support pci_intr_establish_cpu(), so it is safe to apply this.
a few things to note:
- the chip only supports a power of 2 number of queues, (ie, 1, 2,
4, 8, etc), so this also tests the INTRMAP_POWEROF2 flag to
intrmap_create. i tested this on a box with 6 cpus and it did the
right thing.
- the chip can support a lot of vectors, but we're limiting it to
8 for now.
- rss with toeplitz is not implemented yet, so all rxed packets end
up on the 0th queue for now.
jmatthew@ had done most of the work already, and christiano haesbaert
provided some hints to motivate me to work on this bit of it.
tested by jmatthew@ on sparc64
ok jmatthew@
