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linux/drivers/net/ethernet
History
Jacob Keller 20076fa185 fm10k: Add support for ITR scaling based on PCIe link speed 
The Intel Ethernet Switch FM10000 Host Interface interrupt throttle
timers are based on the PCIe link speed. Because of this, the value
being programmed into the ITR registers must be scaled accordingly.

For the PF, this is as simple as reading the PCIe link speed and storing
the result. However, in the case of SR-IOV, the VF's interrupt throttle
timers are based on the link speed of the PF. However, the VF is unable
to get the link speed information from its configuration space, so the
PF must inform it of what scale to use.

Rather than pass this scale via mailbox message, take advantage of
unused bits in the TDLEN register to pass the scale. It is the
responsibility of the PF to program this for the VF while setting up the
VF queues and the responsibility of the VF to get the information
accordingly. This is preferable because it allows the VF to set up the
interrupts properly during initialization and matches how the MAC
address is passed in the TDBAL/TDBAH registers.

Since we're modifying fm10k_type.h, we may as well also update the
copyright year.

Reported-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-05 23:55:20 -08:00
..
3com 3c59x: Add BQL support for 3c59x ethernet driver. 2015-08-24 12:20:58 -07:00
8390 net: mac8390: Allow modular build 2015-09-29 21:11:12 -07:00
adaptec drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
adi net: bfin_mac: Use platform_register/unregister_drivers() 2015-12-03 15:14:58 -05:00
aeroflex drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
agere drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
allwinner net: sun4i-emac: Properly free resources on probe failure and remove 2015-10-21 19:47:45 -07:00
alteon drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
altera net: eth: altera: Fix the initial device operstate 2015-09-09 12:10:15 -07:00
amd Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
apm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
apple net: macmace: Allow modular build 2015-09-29 21:11:13 -07:00
arc net: arc: Fix module autoload for OF platform driver 2015-09-21 16:08:20 -07:00
atheros Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
aurora net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller 2015-11-20 11:47:02 -05:00
broadcom bnx2x: simplify distinction between port and func stats 2015-12-05 19:00:03 -05:00
brocade bna: fix error handling 2015-09-29 13:49:53 -07:00
cadence net: macb: Add support for sgmii phy interface 2015-11-18 15:09:09 -05:00
calxeda ethernet: codespell comment spelling fixes 2015-03-08 22:54:22 -04:00
cavium net: thunderx: Enable BGX LMAC's RX/TX only after VF is up 2015-12-02 15:58:50 -05:00
chelsio net: provide generic busy polling to all NAPI drivers 2015-11-18 16:17:42 -05:00
cirrus drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
cisco net: provide generic busy polling to all NAPI drivers 2015-11-18 16:17:42 -05:00
davicom dm9000: fix a typo 2015-09-08 22:44:42 -07:00
dec net: tulip: turn compile-time warning into dev_warn() 2015-11-20 11:02:48 -05:00
dlink dl2k: Implement suspend 2015-11-20 14:48:27 -05:00
emulex net: provide generic busy polling to all NAPI drivers 2015-11-18 16:17:42 -05:00
ezchip NET: nps_enet: minor namespace cleanup 2015-08-23 16:08:54 -07:00
faraday drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
freescale Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
fujitsu drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
hisilicon net:hns: Add the init code to disable Hip06 "Hardware VLAN assist" 2015-12-04 14:36:15 -05:00
hp drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
i825xx drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
ibm drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
intel fm10k: Add support for ITR scaling based on PCIe link speed 2015-12-05 23:55:20 -08:00
marvell Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
mellanox mlxsw: core: Change BUG to WARN in hwmon code 2015-12-03 15:26:39 -05:00
micrel Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/owner', 'spi/topic/pxa' and 'spi/topic/pxa2xx' into spi-next 2015-11-04 11:02:12 +00:00
microchip net: encx24j600: move rev announcement to probe function 2015-11-20 10:45:20 -05:00
moxa net: moxa: Fix module autoload for OF platform driver 2015-09-21 16:09:02 -07:00
myricom net: provide generic busy polling to all NAPI drivers 2015-11-18 16:17:42 -05:00
natsemi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
neterion drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
netronome net: add driver for Netronome NFP4000/NFP6000 NIC VFs 2015-12-03 14:17:51 -05:00
nuvoton drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
nvidia forcedeth: fix unilateral interrupt disabling in netpoll path 2015-10-27 19:45:23 -07:00
nxp net: lpc_eth: remove irq > NR_IRQS check from probe() 2015-12-03 15:02:24 -05:00
octeon drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
oki-semi drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
packetengines drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
pasemi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
qlogic qede: Add support for {get, set}_pauseparam 2015-12-01 16:02:40 -05:00
qualcomm spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
rdc drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
realtek r8169: fix kasan reported skb use-after-free. 2015-11-12 13:51:01 -05:00
renesas sh_eth: read MAC address registers only once 2015-12-05 22:45:56 -05:00
rocker net: add netif_tx_napi_add() 2015-11-18 16:17:41 -05:00
samsung ethernet: codespell comment spelling fixes 2015-03-08 22:54:22 -04:00
seeq drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
sfc sfc: check warm_boot_count after other functions have been reset 2015-12-05 17:59:10 -05:00
sgi drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
silan drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
sis sis900: Trivial: Fix typos in enums 2015-06-29 12:52:06 -07:00
smsc net: smsc911x: Reset PHY during initialization 2015-11-16 14:43:14 -05:00
stmicro Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
sun drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
synopsys dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put" 2015-11-07 13:17:32 -05:00
tehuti drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
ti Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
tile nohz: Prevent tilegx network driver interrupts 2015-07-29 15:44:59 +02:00
toshiba drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
tundra drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
via via-velocity: unconditionally drop frames with bad l2 length 2015-11-17 14:37:16 -05:00
wiznet drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
xilinx drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
xircom drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
xscale drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
dnet.c
dnet.h
ec_bhf.c net: ec_bhf: Use module_pci_driver 2015-07-08 16:04:06 -07:00
ethoc.c net/ethoc: support big-endian register layout 2015-09-23 15:33:15 -07:00
fealnx.c
jme.c net: jme: use kzalloc() instead of kmalloc+memset 2015-09-09 17:06:00 -07:00
jme.h
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
korina.c
lantiq_etop.c
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-03 21:09:12 -05:00
netx-eth.c