leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
48bfc39791
linux/drivers/net/ethernet
History
Tal Gilboa 48bfc39791 net/mlx5e: Set EQE based as default TX interrupt moderation mode 
The default TX moderation mode was mistakenly set to CQE based. The
intention was to add a control ability in order to improve some specific
use-cases. In general, we prefer to use EQE based moderation as it gives
much better numbers for the common cases.

CQE based causes a degradation in the common case since it resets the
moderation timer on CQE generation. This causes an issue when TSO is
well utilized (large TSO sessions). The timer is set to 16us so traffic
of ~64KB TSO sessions per second would mean timer reset (CQE per TSO
session -> long time between CQEs). In this case we quickly reach the
tcp_limit_output_bytes (256KB by default) and cause a halt in TX traffic.

By setting EQE based moderation we make sure timer would expire after
16us regardless of the packet rate.
This fixes an up to 40% packet rate and up to 23% bandwidth degradtions.

Fixes: 0088cbbc4b ("net/mlx5e: Enable CQE based moderation on TX CQ")
Signed-off-by: Tal Gilboa <talgi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-01 20:54:41 -04:00
..
3com 3c59x: fix missing dma_mapping_error check and bad ring refill logic 2018-01-03 13:44:14 -05:00
8390 ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
adaptec
adi
aeroflex
agere
alacritech
allwinner
alteon net: alteon: acenic: clean up indentation issue 2017-12-15 13:28:30 -05:00
altera ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
amazon net: ena: Eliminate duplicate barriers on weakly-ordered archs 2018-03-26 12:47:56 -04:00
amd ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
apm
apple net/macmace: Drop redundant MACH_IS_MAC test 2018-02-28 12:00:27 -05:00
aquantia net: aquantia: Make function hw_atl_utils_mpi_set_speed() static 2018-03-27 10:49:36 -04:00
arc net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred 2018-03-20 12:06:23 -04:00
atheros
aurora
broadcom bnxt_en: Add ULP calls to stop and restart IRQs. 2018-03-31 23:24:20 -04:00
brocade ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
cadence net: macb: Try to retrieve MAC addess from nvmem provider 2018-03-30 10:40:18 -04:00
calxeda
cavium net: thunderx: add ndo_set_rx_mode callback implementation for VF 2018-03-31 22:18:17 -04:00
chelsio cxgb4: LLD driver changes to support TLS 2018-03-31 23:37:32 -04:00
cirrus net/mac89x0: Replace custom debug logging with netif_* calls 2018-03-01 21:21:36 -05:00
cisco enic: drop IP proto check for vxlan tunnel delete 2018-03-16 09:50:40 -04:00
cortina net: gemini: fix memory leak 2018-03-20 12:08:45 -04:00
davicom
dec
dlink
emulex ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
ezchip
faraday
freescale fsl/fman: remove unnecessary set_dma_ops() call and HAS_DMA dependency 2018-03-26 11:30:06 -04:00
fujitsu
hisilicon ethernet: hisilicon: hns: hns_dsaf_mac: Use generic eth_broadcast_addr 2018-03-31 22:26:43 -04:00
hp
huawei hinic: Replace PCI pool old API 2018-01-02 16:14:49 -06:00
i825xx
ibm ibmvnic: Disable irqs before exiting reset from closed state 2018-04-01 20:53:50 -04:00
intel Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 2018-03-27 09:56:13 -04:00
marvell Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
mediatek net: mediatek: Explicitly include pinctrl headers 2018-02-05 09:41:54 -08:00
mellanox net/mlx5e: Set EQE based as default TX interrupt moderation mode 2018-04-01 20:54:41 -04:00
micrel net: ks8851: Support DT-provided MAC address 2017-12-19 13:52:39 -05:00
microchip lan743x: make functions lan743x_csr_read and lan743x_csr_read static 2018-03-12 11:12:38 -04:00
moxa
myricom ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
natsemi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
neterion
netronome Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
ni net: ethernet: nixge: Add support for National Instruments XGE netdev 2018-03-29 11:51:00 -04:00
nuvoton
nvidia forcedeth: remove duplicate structure member in rx 2018-01-23 11:11:41 -05:00
nxp
oki-semi pch_gbe: Deprecate pci_get_bus_and_slot() 2018-01-17 08:16:46 -06:00
packetengines
pasemi net: pasemi: Replace mac address parsing 2017-12-20 12:47:46 -05:00
qlogic Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
qualcomm net: qualcomm: rmnet: check for null ep to avoid null pointer dereference 2018-03-26 12:11:24 -04:00
rdc
realtek Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
renesas sh_eth: kill useless check in __sh_eth_get_regs() 2018-04-01 14:09:53 -04:00
rocker rocker: fix possible null pointer dereference in rocker_router_fib_event_work 2018-02-01 09:50:52 -05:00
samsung ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
seeq
sfc sfc: fix flow type handling for RSS filters 2018-03-27 13:33:20 -04:00
sgi
silan
sis
smsc net: smsc911x: Fix unload crash when link is up 2018-03-07 13:22:09 -05:00
socionext net: ethernet: ave: add UniPhier PXs3 support 2018-03-26 11:29:10 -04:00
stmicro net: stmmac: dwmac-meson8b: Add support for the Meson8m2 SoC 2018-03-31 22:17:24 -04:00
sun ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
synopsys net: dwc-xlgmac: Get rid of custom hex_dump_to_buffer() 2017-12-21 15:05:33 -05:00
tehuti
ti Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
tile
toshiba
tundra net: tsi108: Use DMA API properly 2018-01-17 18:04:43 -06:00
via
wiznet
xilinx
xircom
xscale
dnet.c
dnet.h
ec_bhf.c ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
ethoc.c
fealnx.c
jme.c net: jme: remove unused initialization of 'rxdesc' 2018-02-01 14:54:28 -05:00
jme.h
Kconfig net: ethernet: nixge: Add support for National Instruments XGE netdev 2018-03-29 11:51:00 -04:00
korina.c
lantiq_etop.c
Makefile net: ethernet: nixge: Add support for National Instruments XGE netdev 2018-03-29 11:51:00 -04:00
netx-eth.c