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nfp: bpf: allow receiving perf events on data queues
authorJakub Kicinski <jakub.kicinski@netronome.com>
Thu, 26 Jul 2018 02:53:33 +0000 (19:53 -0700)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 27 Jul 2018 05:14:35 +0000 (07:14 +0200)
commit0958762748e4cfeb19d881aa8d3fe5ba8b5bc50b
tree5076fadb566c2123f9e43e6e22b0c67eb5ffcb62
parent20c54204219987d620ca9da567dd54e569863dad
nfp: bpf: allow receiving perf events on data queues

Control queue is fairly low latency, and requires SKB allocations,
which means we can't even reach 0.5Msps with perf events.  Allow
perf events to be delivered to data queues.  This allows us to not
only use multiple queues, but also receive and deliver to user space
more than 5Msps per queue (Xeon E5-2630 v4 2.20GHz, no retpolines).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
drivers/net/ethernet/netronome/nfp/bpf/cmsg.c
drivers/net/ethernet/netronome/nfp/bpf/main.c
drivers/net/ethernet/netronome/nfp/bpf/main.h