]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 0b9c062) | patch
nfp: bpf: add short busy wait for FW replies
authorJakub Kicinski <jakub.kicinski@netronome.com>
Thu, 18 Jan 2018 03:13:32 +0000 (19:13 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 18 Jan 2018 21:54:26 +0000 (22:54 +0100)
commitb4b84f5179062dfb2bfee309f4a28dc459f4bce5
treeefd0d8d3cb68686132ce8adea69fddd8916e7477tree | snapshot
parent0b9c0628ee3a6cd7368d69bbf32ad539d84f84e0commit | diff
nfp: bpf: add short busy wait for FW replies

Scheduling out and in for every FW message can slow us down
unnecessarily.  Our experiments show that even under heavy load
the FW responds to 99.9% messages within 200 us.  Add a short
busy wait before entering the wait queue.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
drivers/net/ethernet/netronome/nfp/bpf/cmsg.c diff | blob | history
Linux Kernel Source Tree.