Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
10GbE Intel Wired LAN Driver Updates 2021-12-28
Alexander Lobakin says:
napi_build_skb() I introduced earlier this year ([0]) aims
to decrease MM pressure and the overhead from in-place
kmem_cache_alloc() on each Rx entry processing by decaching
skbuff_heads from NAPI per-cpu cache filled prior to that by
napi_consume_skb() (so it is sort of a direct shortcut for
free -> mm -> alloc cycle).
Currently, no in-tree drivers use it. Switch all Intel Ethernet
drivers to it to get slight-to-medium perf boosts depending on
the frame size.
ice driver, 50 Gbps link, pktgen + XDP_PASS (local in) sample:
frame_size/nthreads 64/42 128/20 256/8 512/4 1024/2 1532/1
net-next (Kpps) 46062 34654 18248 9830 5343 2714
series 47438 34708 18330 9875 5435 2777
increase 2.9% 0.15% 0.45% 0.46% 1.72% 2.32%
Additionally, e1000's been switched to napi_consume_skb() as it's
safe and works fine there, and there's no point in napi_build_skb()
without paired NAPI cache feeding point.
[0] https://lore.kernel.org/all/20210213141021.87840-1-alobakin@pm.me
* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ixgbevf: switch to napi_build_skb()
ixgbe: switch to napi_build_skb()
igc: switch to napi_build_skb()
igb: switch to napi_build_skb()
ice: switch to napi_build_skb()
iavf: switch to napi_build_skb()
i40e: switch to napi_build_skb()
e1000: switch to napi_build_skb()
e1000: switch to napi_consume_skb()
====================
Link: https://lore.kernel.org/r/20211228175815.281449-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
