Matteo Croce e4017570da mvneta: recycle buffers ... Use the new recycling API for page_pool. In a drop rate test, the packet rate increased by 10%, from 296 Kpps to 326 Kpps. perf top on a stock system shows: Overhead Shared Object Symbol 23.66% [kernel] [k] __pi___inval_dcache_area 22.85% [mvneta] [k] mvneta_rx_swbm 7.54% [kernel] [k] kmem_cache_alloc 6.49% [kernel] [k] eth_type_trans 3.94% [kernel] [k] dev_gro_receive 3.91% [kernel] [k] __netif_receive_skb_core 3.91% [kernel] [k] kmem_cache_free 3.76% [kernel] [k] page_pool_release_page 3.56% [kernel] [k] free_unref_page 2.40% [kernel] [k] build_skb 1.49% [kernel] [k] skb_release_data 1.45% [kernel] [k] __alloc_pages_bulk 1.30% [kernel] [k] page_frag_free And this is the same output with recycling enabled: Overhead Shared Object Symbol 26.41% [kernel] [k] __pi___inval_dcache_area 25.00% [mvneta] [k] mvneta_rx_swbm 8.14% [kernel] [k] kmem_cache_alloc 6.84% [kernel] [k] eth_type_trans 4.44% [kernel] [k] __netif_receive_skb_core 4.38% [kernel] [k] kmem_cache_free 4.16% [kernel] [k] dev_gro_receive 3.21% [kernel] [k] page_pool_put_page 2.41% [kernel] [k] build_skb 1.82% [kernel] [k] skb_release_data 1.61% [kernel] [k] napi_gro_receive 1.25% [kernel] [k] page_pool_refill_alloc_cache 1.16% [kernel] [k] __netif_receive_skb_list_core We can see that page_pool_release_page(), free_unref_page() and __alloc_pages_bulk() are no longer on top of the list when receiving traffic. The test was done with mausezahn on the TX side with 64 byte raw ethernet frames. Signed-off-by: Matteo Croce <mcroce@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-06-07 14:11:47 -07:00
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3com	net: 3com: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
8390	net: 8390: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
actions	net: ethernet: actions: Add Actions Semi Owl Ethernet MAC driver	2021-03-22 12:56:21 -07:00
adaptec	treewide: remove editor modelines and cruft	2021-05-07 00:26:34 -07:00
aeroflex	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
agere	…
alacritech	…
allwinner	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
alteon	net: alteon: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
altera	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
amazon	net: ena: remove extra words from comments	2021-03-31 14:34:08 -07:00
amd	net: amd: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
apm	…
apple	net: apple: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
aquantia	…
arc	net: arc: Demote non-compliant kernel-doc headers	2021-05-17 14:12:38 -07:00
atheros	atl1c: add 4 RX/TX queue support for Mikrotik 10/25G NIC	2021-05-27 16:06:46 -07:00
broadcom	net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname	2021-06-07 14:07:22 -07:00
brocade	net: brocade: bna: Fix wrong function name in comments	2021-05-17 14:12:38 -07:00
cadence	net: macb: Use devm_platform_get_and_ioremap_resource()	2021-06-07 14:07:22 -07:00
calxeda	net: calxeda: Fix wrong function name in comments	2021-05-17 14:12:38 -07:00
cavium	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
chelsio	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2021-06-07 13:01:52 -07:00
cirrus	…
cisco	ethernet:enic: Fix a use after free bug in enic_hard_start_xmit	2021-05-03 13:23:00 -07:00
cortina	net: gemini: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:20:00 -07:00
davicom	net: davicom: Remove redundant assignment to ret	2021-04-26 12:48:30 -07:00
dec	net: tulip: Remove the repeated declaration	2021-06-07 14:03:11 -07:00
dlink	net: dlink: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
emulex	…
ezchip	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
faraday	net: ftgmac100: add missing error return code in ftgmac100_probe()	2021-05-23 16:16:24 -07:00
freescale	net: enetc: Use devm_platform_get_and_ioremap_resource()	2021-06-07 14:07:22 -07:00
fujitsu	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
google	gve: Correct SKB queue index validation.	2021-05-17 15:38:40 -07:00
hisilicon	net: hns3: remove now redundant logic related to HNAE3_UNKNOWN_RESET	2021-06-07 14:00:37 -07:00
huawei	net: huawei: hinic: Fix wrong function name in comments	2021-05-17 14:12:38 -07:00
i825xx	…
ibm	ehea: fix error return code in ehea_restart_qps()	2021-05-28 18:12:19 -07:00
intel	Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue	2021-06-07 13:24:50 -07:00
marvell	mvneta: recycle buffers	2021-06-07 14:11:47 -07:00
mediatek	net: ethernet: mtk_eth_soc: Fix packet statistics support for MT7628/88	2021-05-23 16:13:11 -07:00
mellanox	skbuff: add a parameter to __skb_frag_unref	2021-06-07 14:11:47 -07:00
micrel	net: micrel: check return value after calling platform_get_resource()	2021-06-07 14:07:22 -07:00
microchip	net: encx24j600: fix kernel-doc syntax in file headers	2021-05-20 15:25:38 -07:00
microsoft	net: mana: Use struct_size() in kzalloc()	2021-05-13 15:58:46 -07:00
moxa	net: moxa: Use devm_platform_get_and_ioremap_resource()	2021-06-07 14:08:30 -07:00
mscc	net: mscc: ocelot: support PTP Sync one-step timestamping	2021-04-27 14:10:15 -07:00
myricom	ethernet: myri10ge: Fix missing error code in myri10ge_probe()	2021-06-01 15:54:38 -07:00
natsemi	net: natsemi: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
neterion	net: vxge: Declare the function vxge_reset_all_vpaths as void	2021-06-01 15:29:43 -07:00
netronome	nfp: flower-ct: add tc merge functionality	2021-06-02 14:04:42 -07:00
ni	…
nvidia	…
nxp	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
oki-semi	net: pch_gbe: remove unneeded MODULE_VERSION() call	2021-05-10 14:58:20 -07:00
packetengines	…
pasemi	…
pensando	ionic: fix ptp support config breakage	2021-05-11 16:20:27 -07:00
qlogic	qed: Fix duplicate included linux/kernel.h	2021-06-07 13:29:50 -07:00
qualcomm	net: ethernet: rmnet: Restructure if checks to avoid uninitialized warning	2021-06-03 15:29:54 -07:00
rdc	net: r6040: Allow restarting auto-negotiation	2021-05-23 17:23:59 -07:00
realtek	r8169: Fix fall-through warning for Clang	2021-05-28 15:25:48 -07:00
renesas	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-04-26 12:00:00 -07:00
rocker	net: bridge: switchdev: include local flag in FDB notifications	2021-04-16 15:15:45 -07:00
samsung	net: samsung: sxgbe: Fix wrong function name in comments	2021-05-17 14:12:39 -07:00
seeq	net: seeq: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
sfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
sgi	…
silan	…
sis	net: sis: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
smsc	net: smsc: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
socionext	net: socionext: Demote non-compliant kernel-doc headers	2021-05-17 14:12:39 -07:00
stmicro	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2021-06-07 13:01:52 -07:00
sun	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
synopsys	…
tehuti	net: tehuti: fix error return code in bdx_probe()	2021-03-05 12:59:32 -08:00
ti	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
toshiba	net: toshiba: fix the trailing format of some block comments	2021-03-31 14:34:09 -07:00
tundra	…
via	net: via: Fix wrong function name in comments	2021-05-17 14:12:39 -07:00
wiznet	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
xilinx	net: axienet: Fix fall-through warning for Clang	2021-05-30 13:44:39 -07:00
xircom	net: xircom: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
xscale	net: ethernet: ixp4xx_eth: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:05:37 -07:00
Kconfig	net: korina: Make driver COMPILE_TESTable	2021-04-19 15:58:14 -07:00
Makefile	net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)	2021-04-19 15:24:25 -07:00
dnet.c	…
dnet.h	…
ec_bhf.c	…
ethoc.c	of: net: pass the dst buffer to of_get_mac_address()	2021-04-13 14:35:02 -07:00
fealnx.c	net: fealnx: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
jme.c	net: jme: Replace link-change tasklet with work	2021-03-17 16:33:58 +01:00
jme.h	net: jme: Replace link-change tasklet with work	2021-03-17 16:33:58 +01:00
korina.c	net: korina: Fix return value check in korina_probe()	2021-05-13 15:54:08 -07:00
lantiq_etop.c	…
lantiq_xrx200.c	net: lantiq: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:05:37 -07:00