linux/drivers/net/ethernet
Claudiu Manoil b98b8babd6 gianfar: Change default HW Tx queue scheduling mode
This is primarily to address transmission timeout occurrences, when
multiple H/W Tx queues are being used concurrently. Because in
the priority scheduling mode the controller does not service the
Tx queues equally (but in ascending index order), Tx timeouts are
being triggered rightaway for a basic test with multiple simultaneous
connections like:
iperf -c <server_ip> -n 100M -P 8

resulting in kernel trace:
NETDEV WATCHDOG: eth1 (fsl-gianfar): transmit queue <X> timed out
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:255
...
and controller reset during intense traffic, and possibly further
complications.

This patch changes the default H/W Tx scheduling setting (TXSCHED)
for multi-queue devices, from priority scheduling mode to a weighted
round robin mode with equal weights for all H/W Tx queues, and
addresses the issue above.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24 16:25:16 -04:00
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3com
8390
adaptec
adi
aeroflex
alteon
amd
apple
atheros atl1c: fix issue of io access mode for AR8152 v2.1 2012-07-20 11:21:18 -07:00
broadcom bnx2x: Improve code around bnx2x_tests_str_arr 2012-09-24 15:46:44 -04:00
brocade
cadence
calxeda
chelsio cxgb4: Remove duplicate register definitions 2012-09-05 17:41:40 -04:00
cirrus cs89x0 : packet reception not working 2012-08-31 15:48:56 -04:00
cisco
davicom
dec
dlink
emulex be2net: use PCIe AER capability 2012-09-05 17:49:28 -04:00
faraday net: ftgmac100/ftmac100: dont pull too much data 2012-07-18 09:40:53 -07:00
freescale gianfar: Change default HW Tx queue scheduling mode 2012-09-24 16:25:16 -04:00
fujitsu
hp
i825xx net: Make ZNET driver config depend on X86. 2012-09-22 18:11:32 -04:00
ibm ibmveth: Fix alignment of rx queue bug 2012-09-05 17:45:23 -04:00
icplus
intel ixgbevf: Return error on failure to enable VLAN 2012-09-24 01:50:45 -07:00
marvell Merge branch 'v3.5-rc7-fixes' of git://github.com/lunn/linux into fixes 2012-07-25 21:37:09 +02:00
mellanox net/mlx4_core: Return the error value in case of command initialization failure 2012-09-07 12:55:59 -04:00
micrel
microchip
myricom
natsemi
neterion net: fix race condition in several drivers when reading stats 2012-07-22 12:12:32 -07:00
nuvoton
nvidia forcedeth: prevent TX timeouts after reboot 2012-08-30 13:04:57 -04:00
nxp lpc_eth: remove obsolete ifdefs 2012-08-08 16:07:51 -07:00
octeon netdev: octeon_mgmt: Convert to use device tree. 2012-07-23 13:54:53 +01:00
oki-semi pch_gbe: vlan skb len fix 2012-07-26 14:30:23 -07:00
packetengines
pasemi
qlogic qlge: Add offload features to vlan interfaces 2012-07-29 23:18:30 -07:00
racal
rdc
realtek r8169: use unlimited DMA burst for TX 2012-09-19 19:19:07 -04:00
renesas net: sh_eth: Add eth support for R8A7779 device 2012-08-20 02:16:54 -07:00
seeq |PATCH] seeq: Add missing spinlock init 2012-09-07 12:56:00 -04:00
sfc ptp: link the phc device to its parent device 2012-09-22 15:42:38 -04:00
sgi
silan
sis
smsc
stmicro net:stmmac: convert driver to use devm_request_and_ioremap. 2012-08-31 16:11:37 -04:00
sun sunbmac: Remove unused local variable. 2012-09-21 15:23:12 -04:00
tehuti
ti Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-09-15 11:43:53 -04:00
tile tilegx net: use eth_hw_addr_random(), not eth_random_addr() 2012-07-18 15:07:45 -04:00
toshiba
tundra drivers/net/ethernet/tundra/tsi108_eth.c: delete double assignment 2012-08-30 13:08:37 -04:00
via
wiznet w5300: using eth_hw_addr_random() for random MAC and set device flag 2012-08-24 13:30:27 -04:00
xilinx
xircom
xscale ixp4xx_eth: fix ptp_ixp46x build failure 2012-08-06 13:30:01 -07:00
dnet.c
dnet.h
ethoc.c
fealnx.c
jme.c jme: netpoll support 2012-07-18 09:40:54 -07:00
jme.h
Kconfig
korina.c
lantiq_etop.c
Makefile
mipsnet.c
netx-eth.c
s6gmac.c