Commit Graph

414781 Commits

Author SHA1 Message Date
dingtianhong
692e5167b4 wireless: slight optimization of addr compare
Use possibly more efficient ether_addr_equal or
ether_addr_equal_unaligned instead of memcmp.

Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
4f29739bb0 rtlwifi: slight optimization of addr compare
Use possibly more efficient ether_addr_equal_unaligned
instead of memcmp.

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
fcad7668fb mwifiex: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Bing Zhao <bzhao@marvell.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
36325f3a9f ipw2x00: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
35df5388ac cw1200: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Solomon Peachy <pizza@shaftnet.org>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
d22fbd70c2 hostap: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Jouni Malinen <j@w1.fi>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:35 -05:00
dingtianhong
5e231c2c5a media: dvb_core: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: linux-media@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
48f045b911 isdn: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
4c55a4623a atm: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Cc: linux-atm-general@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
496d7e8ea3 mac8011: slight optimization of addr compare
Use the possibly more efficient ether_addr_equal
to instead of memcmp.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: David Miller <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
c5266d40b0 infiniband: slight optimization of addr compare
Use the possibly more efficient ether_addr_equal
to instead of memcmp.

Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: linux-rdma@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
93dc5e429b ozwpan: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Rupesh Gujare <rupesh.gujare@atmel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:34 -05:00
dingtianhong
c15975ac60 zd1211rw: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Daniel Drake <dsd@gentoo.org>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
323813ed2b batman-adv: use batadv_compare_eth for concise
It is better to use batadv_compate_eth instead of memcpy for
concise style.

Cc: Marek Lindner <mareklindner@neomailbox.ch>
Cc: Simon Wunderlich <sw@simonwunderlich.de>
Cc: Antonio Quartulli <antonio@meshcoding.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: b.a.t.m.a.n@lists.open-mesh.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
7ed8ca5b1e ppp: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
to instead of memcmp.

Cc: Michal Ostrowski <mostrows@earthlink.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
dc050c9e77 hamradio: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
to instead of memcmp.

Cc: Joerg Reuter <jreuter@yaina.de>
Cc: linux-hams@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
e6d9f8a31c net: atl1: slight optimization of addr compare
Use the recently added and possibly more efficient
ether_addr_equal_unaligned to instead of memcmp.

Cc: Jay Cliburn <jcliburn@gmail.com>
Cc: Chris Snook <chris.snook@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
ebff7b41b6 net: pcnet: slight optimization of addr compare
Use possibly more efficient ether_addr_equal
to instead of memcmp.

Cc: Don Fry <pcnet32@frontier.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:33 -05:00
dingtianhong
40803a2450 net: freescale: remove unused compare_addr()
The function did not be used any more, so remove it.

Cc: Li Yang <leoli@freescale.com>
Cc: netdev@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:31:32 -05:00
stephen hemminger
306d7f79bb qlge: make local function static
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:29:35 -05:00
stephen hemminger
652a4a53fc mdio: unused ethtool functions
Use it or lose it.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:29:35 -05:00
stephen hemminger
c49fa257ba hhf: make qdisc ops static
This module shouldn't be randomly exporting symbols

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-26 13:29:35 -05:00
Weilong Chen
db34de939a rose: cleanup checkpatch errors,spaces required
This patch add spaces to cleanup checkpatch errors.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:57:58 -05:00
wangweidong
f482f2fcd1 sctp: remove the never used 'return' and redundant 'break'
In switch() had do return, and never use the 'return NULL'. The
'break' after return or goto has no effect. Remove it.

v2: make it more readable as suggested by Neil.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:56:51 -05:00
Weilong Chen
2cc33c7e31 mac802154: fix following checkpath.pl warning Prefer pr_warn(... to pr_warning(...
This patch fixes checkpath.pl:
 WARNING: Prefer pr_warn(... to pr_warning(...
 #447: FILE: ./wpan.c:447:

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:53:08 -05:00
stephen hemminger
de5b867741 cxgb4: make functions static and remove dead code
Cleanup by making local functions static.

The code to load config file is unreachable in net-next, probably came
from some out of tree driver.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:32:44 -05:00
wangweidong
131334d09c sctp: remove casting from function calls through ops structure
remove the unnecessary cast.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:04:28 -05:00
stephen hemminger
c92d5491a6 netconf: add support for IPv6 proxy_ndp
Need to be able to see changes to proxy NDP status on a per
interface basis via netlink (analog to proxy_arp).

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:02:43 -05:00
stephen hemminger
09aea5df7f netconf: rename PROXY_ARP to NEIGH_PROXY
Use same field for both IPv4 (proxy_arp) and IPv6 (proxy_ndp)
so fix it before API is set to be a common name

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:02:43 -05:00
Daniel Borkmann
345010b5c4 net: vxlan: use custom ndo_change_mtu handler
When adding a new vxlan device to an "underlying carrier" (here:
dst->remote_ifindex), the MTU size assigned to the vxlan device
is the MTU at setup time of the carrier - needed headroom, when
adding a vxlan device w/o explicit carrier, then it defaults
to 1500.

In case of an explicit carrier that supports jumbo frames, we
currently cannot change vxlan MTU via ip(8) to > 1500 in
post-setup time, as vxlan driver uses eth_change_mtu() as default
method for manually setting MTU.

Hence, use a custom implementation that only falls back to
eth_change_mtu() in case we didn't use a dev parameter on device
setup time, and otherwise allow a max MTU setting of the carrier
incl. adjustment for headroom.

Reported-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-22 18:01:08 -05:00
Eric Dumazet
289dccbe14 net: use kfree_skb_list() helper
We can use kfree_skb_list() instead of open coding it.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 22:28:16 -05:00
David S. Miller
1b6176cca3 Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-next
Marc Kleine-Budde says:

====================
this is a pull request of three patches for net-next/master.

There is a patch by Oliver Hartkopp, to clean up the CAN gw code.
Alexander Shiyan adds device tree support to the mcp251x driver and a
patch by Ezequiel Garcia lets the ti_hecc driver compile on all ARM
platforms.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 22:02:22 -05:00
Hannes Frederic Sowa
790e38bc26 ipv6: move ip6_sk_accept_pmtu from generic pmtu update path to ipv6 one
In commit 93b36cf342 ("ipv6: support IPV6_PMTU_INTERFACE on sockets")
I made a horrible mistake to add ip6_sk_accept_pmtu to the generic
sctp_icmp_frag_needed path. This results in build warnings if IPv6 is
disabled which were luckily caught by Fengguang's kbuild bot. But it
also leads to a kernel panic IPv4 frag-needed packet is received.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 22:00:59 -05:00
David S. Miller
fc45b45540 Revert "sctp: fix missing include file"
This reverts commit ac0917f250.

Better version of this fix forthcoming.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 22:00:39 -05:00
Ezequiel Garcia
44cc479a41 can: ti_hecc: Replace platform dependency with ARM dependency
OMAP's ti_hecc driver is used to support the CAN controller on many omap2plus
SoCs (OMAP2430, OMAP3, OMAP4, OMAP5 and AM335x), so it's wrong to make this
depend on OMAP3 only. Take an extra step, to get wider build coverage, and make
the driver depend on ARM.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-12-22 00:03:51 +01:00
Alexander Shiyan
66606aafd8 can: mcp251x: Add device tree support
This patch adds Device Tree support to the Microchip MCP251X driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-12-21 15:04:24 +01:00
Oliver Hartkopp
c0ebbdd6b5 can: gw: remove obsolete checks
In commit be286bafe1 ("can: gw: add a variable
limit for CAN frame routings") the detection of the frame routing has been
changed. The former solution required dev->header_ops to be unused (== NULL).

I missed to remove the obsolete checks in the original commit - so here it is.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-12-21 14:56:21 +01:00
Atzm Watanabe
ac7686b969 packet: doc: add documentation for VLAN TPID delivery
Introduce TP_STATUS_VLAN_TPID_VALID bit into the documentation.

Signed-off-by: Atzm Watanabe <atzm@stratosphere.co.jp>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 00:01:40 -05:00
sfeldma@cumulusnetworks.com
ac0917f250 sctp: fix missing include file
Compile error reported by Jim Davis on netdev.

ip6_sk_accept_pmtu() needs net/ip6_route.h

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-21 00:00:33 -05:00
David S. Miller
dbe8ecd81d Merge branch 'b44'
Hauke Mehrtens says:

====================
b44: add support for external PHY

This adds support for an external phy connected to the mac controlled
by b44. This is used on home routers of the BCM47xx line where this MAC
core was used and is contended to an external switch core through MII.
These patches are in OpenWrt for some time and are tested by different
users with different devices.

The publicly available Programmer's Reference Guide for some of these
chips help making this patch it would be nice to have such a
documentation for more Broadcom Chips like some SoCs.
https://www.broadcom.com/collateral/pg/440X-PG02-R.pdf
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
2013-12-20 20:49:01 -05:00
Hauke Mehrtens
b04138b335 b44: use fixed PHY device if we do not find any
The ADM6996L switch and some Broadcom switches with two MII interfaces
like the BCM5325F connected to two MACs on the SoC, used on some
routers do not return a valid value when reading the PHY id register
and Linux thinks there is no PHY at all, but that is wrong.
This patch registers a fixed phy in the arch code and then searches it
when there is no other phy in the Ethernet driver code.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:49 -05:00
Hauke Mehrtens
656a7c2b12 b44: do not set PHY address to 30 for every ext PHY
b44_phy_reset() will fail for an external PHY and only work with the
internal PHY, this was an old workaround when the detection of an
external switch based on the PHY address failed and it is not needed
any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:49 -05:00
Hauke Mehrtens
bea69c47f5 b44: activate PHY when MAC is off
Without this patch we can not access the PHY when the MAC is switched
off. This PHY access is needed to configure the switch, which is done
through PHY registers.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Hauke Mehrtens
86f4ea63e6 b44: add phylib support
Most of the older home routers based on the Broadcom BCM47XX SoC series
are using a MAC that is supported by b44. On most of these routers not
the internal PHY of this MAC core is used, but a switch sometimes on an
external chip or integrated into the same SoC as the Ethernet core.
For this switch a special PHY driver is needed which should not be
integrated into b44 as the same switches are also used by other
Broadcom home networking SoCs which are using different Ethernet MAC
drivers. This was tested with the b53 switch driver which is currently
on its way to mainline.

If the internal PHY is not used, b44 will now search on the MDIO bus
for a phy and use the Linux phylib subsystem to register a driver.
Support for the internal PHY must stay here, because there are some
device which are suing the internal phy.

With this patch we scan the mdio bus when the sprom or nvram says that
the PHY address is 30, if a PHY was found at this address b44 uses it.

This was tested with a BCM4704, BCM4712 and BCM5354.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Hauke Mehrtens
348baa6c81 b44: rename b44_mii_{read, write} to b44_mdio_{read, write}_mii
The next patch will add these functions for phylib, and we should
rename the old ones before. This now indicates that these functions are
used for the mdio registers and on the mii interface.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Hauke Mehrtens
7befa6abe0 b44: abort when no PHY is available at all
When the phy address is 31, this means that there is no PHY connected
to this MAC at all, no internal and no external PHY. Reading these PHY
registers causes a system reset on some routers.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Hauke Mehrtens
5ab6329c52 b44: rename B44_PHY_ADDR_NO_PHY to B44_PHY_ADDR_NO_LOCAL_PHY
The PHY address 30 means there is no local PHY, but there could be an
external PHY like a switch connected via MII. This is the case on most
embedded home routers where this driver is used.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Hauke Mehrtens
d61941952d b44: check register instead of PHY address to detect external PHY
The Ethernet core supported by b44 supports an internal PHY integrated
into the mac core, which is supported by the b44 driver and an external
PHY to which the mac core is connected. This external PHY could be a
switch connected through MII, which is often the case when this core is
used on home routers. The usage of an external PHY was assumed when the
PHY address 30 was used and an internal PHY was assumed when the PHY
address was different. To verify that b44_phy_reset() was called and
checked if it worked, otherwise PHY address 30 was assumed, an external
PHY. It is better to check the register which says which PHY is
connected to the MAC instead of checking the PHY address.
The interface to an external PHY was only activated when this register
was set.

This also changes B44_FLAG_INTERNAL_PHY to B44_FLAG_EXTERNAL_PHY, it is
easier to check.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 20:48:48 -05:00
Eric Dumazet
a181ceb501 tcp: autocork should not hold first packet in write queue
Willem noticed a TCP_RR regression caused by TCP autocorking
on a Mellanox test bed. MLX4_EN_TX_COAL_TIME is 16 us, which can be
right above RTT between hosts.

We can receive a ACK for a packet still in NIC TX ring buffer or in a
softnet completion queue.

Fix this by always pushing the skb if it is at the head of write queue.

Also, as TX completion is lockless, it's safer to perform sk_wmem_alloc
test after setting TSQ_THROTTLED.

erd:~# MIB="MIN_LATENCY,MEAN_LATENCY,MAX_LATENCY,P99_LATENCY,STDDEV_LATENCY"
erd:~#  ./netperf -H remote -t TCP_RR -- -o $MIB | tail -n 1
(repeat 3 times)

Before patch :

18,1049.87,41004,39631,6295.47
17,239.52,40804,48,2912.79
18,348.40,40877,54,3573.39

After patch :

18,22.84,4606,38,16.39
17,21.56,2871,36,13.51
17,22.46,2705,37,11.83

Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: f54b311142 ("tcp: auto corking")
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 17:56:25 -05:00
Eric Dumazet
a792866ad2 net_sched: fix regression in tc_action_ops
list_for_each_entry(a, &act_base, head) doesn't
exit with a = NULL if we reached the end of the list.

tcf_unregister_action(), tc_lookup_action_n() and tc_lookup_action()
need fixes.

Remove tc_lookup_action_id() as its unused and not worth 'fixing'

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 1f747c26c4 ("net_sched: convert tc_action_ops to use struct list_head")
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-20 17:06:27 -05:00