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alistair23-linux/drivers/net/ethernet
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Scott Peterson ed0980c440 i40e/i40evf: Add tracepoints 
This patch adds tracepoints to the i40e and i40evf drivers to which
BPF programs can be attached for feature testing and verification.
It's expected that an attached BPF program will identify and count or
log some interesting subset of traffic. The bcc-tools package is
helpful there for containing all the BPF arcana in a handy Python
wrapper. Though you can make these tracepoints log trace messages, the
messages themselves probably won't be very useful (other to verify the
tracepoint is being called while you're debugging your BPF program).

The idea here is that tracepoints have such low performance cost when
disabled that we can leave these in the upstream drivers. This may
eventually enable the instrumentation of unmodified customer systems
should the need arise to verify a NIC feature is working as expected.
In general this enables one set of feature verification tools to be
used on these drivers whether they're built with the kernel or
separately.

Users are advised against using these tracepoints for anything other
than a diagnostic tool. They have a performance impact when enabled,
and their exact placement and form may change as we see how well they
work in practice for the purposes above.

Change-ID: Id6014a7322c0e6d08068114dd20bd156f2f6435e
Signed-off-by: Scott Peterson <scott.d.peterson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
 		2017-04-19 16:47:31 -07:00
..
3com net: typhoon: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
8390
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adaptec net: adaptec: starfire: add checks for dma mapping errors 2017-01-29 19:04:11 -05:00
adi net: bfin_mac: Remove unused stats member from struct bfin_mac_local 2017-03-27 16:01:59 -07:00
aeroflex net: greth: Utilize of_get_mac_address() 2017-03-22 12:00:39 -07:00
agere drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
alacritech net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
allwinner
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alteon
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altera drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
amazon net/ena: switch to pci_alloc_irq_vectors 2017-04-11 11:16:03 -04:00
amd net: nmlan_cs: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
apm drivers: net: xgene-v2: Extend ethtool statistics 2017-04-18 15:55:13 -04:00
apple
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aquantia net:ethernet:aquantia: Reset is_gso flag when EOP reached. 2017-03-24 12:32:19 -07:00
arc drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
atheros net: alx: switch to pci_alloc_irq_vectors 2017-04-11 11:16:02 -04:00
aurora
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broadcom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
brocade bna: avoid writing uninitialized data into hw registers 2017-03-24 12:49:12 -07:00
cadence net: macb: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
calxeda drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
cavium net: thunderx: Switch to pci_alloc_irq_vectors 2017-04-11 11:16:03 -04:00
chelsio cxgb4: save tid while creating server filter 2017-04-13 12:37:57 -04:00
cirrus net: cx89x0: move attribute declaration before struct keyword 2017-04-18 16:00:34 -04:00
cisco enic: add vxlan offload on tx path 2017-02-09 17:24:29 -05:00
davicom
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dec net: tulip: de2104x: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
dlink net: dl2k: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
emulex be2net: VxLAN offload should be re-enabled when only 1 UDP port is left 2017-04-18 15:56:25 -04:00
ezchip Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
faraday ftgmac100: Fix potential ordering issue in NAPI poll 2017-04-18 14:11:09 -04:00
freescale net: fec: add ERR007885 for i.MX6ul enet IP 2017-04-11 14:36:28 -04:00
fujitsu
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hisilicon Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
hp
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i825xx
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ibm net: emac: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
intel i40e/i40evf: Add tracepoints 2017-04-19 16:47:31 -07:00
marvell sky2: Use seq_puts() in sky2_debug_show() 2017-04-18 13:55:11 -04:00
mediatek net-next: ethernet: mediatek: add device_node of GMAC pointing into the netdev instance 2017-04-07 13:50:55 -07:00
mellanox net/mlx5e: E-switch vport manager is valid for ethernet only 2017-04-17 11:08:32 -04:00
micrel net: ks8851: Added support for half-duplex SPI 2017-03-09 18:18:37 -08:00
microchip net: microchip: encx24j600: use new api ethtool_{get|set}_link_ksettings 2017-02-12 22:32:17 -05:00
moxa net: moxa: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
myricom net: myricom: myri10ge: use new api ethtool_{get|set}_link_ksettings 2017-02-12 22:32:17 -05:00
natsemi net: natsemi: ns83820: use new api ethtool_{get|set}_link_ksettings 2017-02-12 22:32:17 -05:00
neterion net: s2io: fix typo argumnet argument 2017-02-26 11:57:58 -05:00
netronome nfp: don't dereference a null nn->eth_port to print a warning 2017-04-08 08:15:34 -07:00
nuvoton net: nuvoton: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
nvidia forcedeth: Remove return from a void function 2017-02-23 10:55:07 -05:00
nxp drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
oki-semi net: oki-semi: pch_gbe: use new api ethtool_{get|set}_link_ksettings 2017-02-17 12:00:14 -05:00
packetengines net: hamachi: use new api ethtool_{get|set}_link_ksettings 2017-02-17 14:06:41 -05:00
pasemi drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
qlogic qede: Add aRFS support 2017-04-17 13:06:18 -04:00
qualcomm drivers: add explicit interrupt.h includes 2017-03-30 11:05:34 -07:00
rdc
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realtek r8169: replace init_timer with setup_timer 2017-03-12 23:55:03 -07:00
renesas sh_eth: fix wakeup event reporting from MagicPacket 2017-02-01 12:53:59 -05:00
rocker Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
samsung drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
seeq drivers: net: ethernet: remove incorrect __exit markups 2017-03-02 14:33:49 -08:00
sfc sfc: don't insert mc_list on low-latency firmware if it's too long 2017-04-05 18:35:21 -07:00
sgi net: sgi: ioc3-eth: use new api ethtool_{get|set}_link_ksettings 2017-03-06 17:05:39 -08:00
silan net: silan: sc92031: use new api ethtool_{get|set}_link_ksettings 2017-03-06 17:05:39 -08:00
sis net: sis: sis900: use new api ethtool_{get|set}_link_ksettings 2017-03-06 17:05:39 -08:00
smsc net: smsc: smc91x: use new api ethtool_{get|set}_link_ksettings 2017-03-08 22:18:05 -08:00
stmicro net: stmmac: set total length of the packet to be transmitted in TDES3 2017-04-13 12:40:09 -04:00
sun net: sunhme: Use net_device_stats from struct net_device 2017-04-07 07:03:33 -07:00
synopsys net: dwc-xlgmac: add the initial ethtool support 2017-04-13 13:46:38 -04:00
tehuti net: tehuti: use new api ethtool_{get|set}_link_ksettings 2017-03-27 16:00:07 -07:00
ti Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-06 08:24:51 -07:00
tile drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
toshiba net: toshiba: spider_net: use new api ethtool_{get|set}_link_ksettings 2017-03-08 22:18:05 -08:00
tundra net: tundra: tsi108: use new api ethtool_{get|set}_link_ksettings 2017-03-12 19:28:07 -07:00
via net: via: via-velocity: use new api ethtool_{get|set}_link_ksettings 2017-03-12 19:28:07 -07:00
wiznet net: ethernet: wiznet: avoid format string exposure 2017-04-06 13:38:11 -07:00
xilinx net: axienet: use eth_hw_addr_random() 2017-03-06 17:15:41 -08:00
xircom
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xscale
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Kconfig net: dwc-xlgmac: Initial driver for DesignWare Enterprise Ethernet 2017-03-09 13:29:27 -08:00
Makefile net: dwc-xlgmac: Initial driver for DesignWare Enterprise Ethernet 2017-03-09 13:29:27 -08:00
dnet.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
dnet.h
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ec_bhf.c net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
ethoc.c net: ethoc: Use ether_addr_copy() 2017-03-21 17:16:56 -07:00
fealnx.c net: fealnx: use new api ethtool_{get|set}_link_ksettings 2017-01-02 16:59:10 -05:00
jme.c net: jme: use new api ethtool_{get|set}_link_ksettings 2017-01-17 11:44:27 -05:00
jme.h net: jme: use new api ethtool_{get|set}_link_ksettings 2017-01-17 11:44:27 -05:00
korina.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
lantiq_etop.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
netx-eth.c
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