kernel_optimize_test/drivers/net
Sarah Sharp e1f12eb6ba USB: Disable hub-initiated LPM for comms devices.
Hub-initiated LPM is not good for USB communications devices.  Comms
devices should be able to tell when their link can go into a lower power
state, because they know when an incoming transmission is finished.
Ideally, these devices would slam their links into a lower power state,
using the device-initiated LPM, after finishing the last packet of their
data transfer.

If we enable the idle timeouts for the parent hubs to enable
hub-initiated LPM, we will get a lot of useless LPM packets on the bus
as the devices reject LPM transitions when they're in the middle of
receiving data.  Worse, some devices might blindly accept the
hub-initiated LPM and power down their radios while they're in the
middle of receiving a transmission.

The Intel Windows folks are disabling hub-initiated LPM for all USB
communications devices under a xHCI USB 3.0 host.  In order to keep
the Linux behavior as close as possible to Windows, we need to do the
same in Linux.

Set the disable_hub_initiated_lpm flag for for all USB communications
drivers.  I know there aren't currently any USB 3.0 devices that
implement these class specifications, but we should be ready if they do.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Hansjoerg Lipp <hjlipp@web.de>
Cc: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Jan Dumon <j.dumon@option.com>
Cc: Petko Manolov <petkan@users.sourceforge.net>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com>
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: "Franky (Zhenhui) Lin" <frankyl@broadcom.com>
Cc: Kan Yan <kanyan@broadcom.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Cc: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Herton Ronaldo Krzesinski <herton@canonical.com>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Cc: Daniel Drake <dsd@gentoo.org>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2012-05-18 15:42:55 -07:00
..
appletalk Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
arcnet arcnet: rimi: Fix device name in debug output 2012-04-17 22:22:43 -04:00
bonding bonding: don't increase rx_dropped after processing LACPDUs 2012-05-10 23:30:01 -04:00
caif caif_hsi: use dev_dbg not dev_err for reporting 2012-04-13 11:01:44 -04:00
can can: usb: PCAN-USB Pro: fix mem leaks in pcan_usb_pro_init() on error paths 2012-04-16 21:34:50 +02:00
cris Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
dsa
ethernet ks8851: Update link status during link change interrupt 2012-05-11 18:23:34 -04:00
fddi
hamradio Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
hippi Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
hyperv net/hyperv: Adding cancellation to ensure rndis filter is closed 2012-04-21 15:38:10 -04:00
irda USB: stir4200.c: remove err() usage 2012-04-25 14:48:51 -07:00
phy icplus: fix interrupt for IC+ 101A/G and 1001LF 2012-04-19 15:34:18 -04:00
plip Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ppp ppp: Fix race condition with queue start/stop 2012-04-13 13:06:47 -04:00
slip Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
team net: use eth_hw_addr_random() and reset addr_assign_type 2012-02-15 15:34:17 -05:00
tokenring Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
usb USB: Disable hub-initiated LPM for comms devices. 2012-05-18 15:42:55 -07:00
vmxnet3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-03-05 21:16:26 -05:00
wan drivers/net/wan/farsync.c: add missing iounmap 2012-04-17 22:31:59 -04:00
wimax Merge branch 'akpm' (Andrew's patch-bomb) 2012-04-05 15:30:34 -07:00
wireless USB: Disable hub-initiated LPM for comms devices. 2012-05-18 15:42:55 -07:00
xen-netback
dummy.c dummy: Add ndo_uninit(). 2012-04-16 23:56:36 -04:00
eql.c eql: dont rely on HZ=100 2012-03-27 22:45:26 -04:00
ifb.c net: replace random_ether_addr() with eth_hw_addr_random() 2012-02-15 15:34:16 -05:00
Kconfig
LICENSE.SRC
loopback.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
macvlan.c Revert "net: maintain namespace isolation between vlan and real device" 2012-05-10 23:03:34 -04:00
macvtap.c macvtap: restore vlan header on user read 2012-05-11 18:16:57 -04:00
Makefile
mdio.c ethtool, mdio, mii: Specify MDIO information fields in struct ethtool_cmd 2012-03-01 16:41:26 -05:00
mii.c ethtool, mdio, mii: Specify MDIO information fields in struct ethtool_cmd 2012-03-01 16:41:26 -05:00
netconsole.c
rionet.c rionet: fix page allocation order of rionet_active 2012-04-01 23:17:16 -04:00
sb1000.c
Space.c
sungem_phy.c
tun.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
veth.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-02-19 16:03:15 -05:00
virtio_net.c net: Fix misplaced parenthesis in virtio_net.c 2012-04-13 11:01:44 -04:00
xen-netfront.c Two fixes for regressions: 2012-04-06 17:54:53 -07:00