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2011-05-03net/stmmac: Move "#include <linux/platform_device.h>" to linux/stmmac.hViresh KUMAR
stmmac.h uses struct platform_device and doesn't include <linux/platform_device.h>. Whereas drivers/net/stmmac/stmmac.h includes it, but doesn't directly use it. And so we get following compilation warning while using this file: warning: ‘struct platform_device’ declared inside parameter list This patch includes <linux/platform_device.h> in linux/stmmac.h and removes it from drivers/net/stmmac/stmmac.h Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: cosmetics: enforce const-ness in ethtool_cmd_speedDavid Decotigny
The 'ep' argument of ethtool_cmd_speed is not altered: advertise it in protoype. +Indentation fix. Also add comments to advise using the ethtool_cmd_speed API to get/set the link speed. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: allow user to change NETIF_F_HIGHDMAMichał Mirosław
NETIF_F_HIGHDMA is like any other TX offloads, so allow user to toggle it. This is needed later for bridge and bonding convertsion to hw_features. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: fix netdev_increment_features()Michał Mirosław
Simplify and fix netdev_increment_features() to conform to what is stated in netdevice.h comments about NETIF_F_ONE_FOR_ALL. Include FCoE segmentation and VLAN-challedged flags in computation. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27net: filter: Just In Time compiler for x86-64Eric Dumazet
In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64 It is disabled by default, and must be enabled by the admin. echo 1 >/proc/sys/net/core/bpf_jit_enable It uses module_alloc() and module_free() to get memory in the 2GB text kernel range since we call helpers functions from the generated code. EAX : BPF A accumulator EBX : BPF X accumulator RDI : pointer to skb (first argument given to JIT function) RBP : frame pointer (even if CONFIG_FRAME_POINTER=n) r9d : skb->len - skb->data_len (headlen) r8 : skb->data To get a trace of generated code, use : echo 2 >/proc/sys/net/core/bpf_jit_enable Example of generated code : # tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24 flen=18 proglen=147 pass=3 image=ffffffffa00b5000 JIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60 JIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00 JIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00 JIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be JIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0 JIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00 JIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00 JIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24 JIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31 JIT code: ffffffffa00b5090: c0 c9 c3 BPF program is 144 bytes long, so native program is almost same size ;) (000) ldh [12] (001) jeq #0x800 jt 2 jf 8 (002) ld [26] (003) and #0xffffff00 (004) jeq #0xc0a81400 jt 16 jf 5 (005) ld [30] (006) and #0xffffff00 (007) jeq #0xc0a81400 jt 16 jf 17 (008) jeq #0x806 jt 10 jf 9 (009) jeq #0x8035 jt 10 jf 17 (010) ld [28] (011) and #0xffffff00 (012) jeq #0xc0a81400 jt 16 jf 13 (013) ld [38] (014) and #0xffffff00 (015) jeq #0xc0a81400 jt 16 jf 17 (016) ret #65535 (017) ret #0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/rt2x00/rt2x00queue.c drivers/net/wireless/rt2x00/rt2x00queue.h
2011-04-19rfkill: Regulator consumer driver for rfkillAntonio Ospite
Add a regulator consumer driver for rfkill to enable controlling radio transmitters connected to voltage regulators using the regulator framework. A new "vrfkill" virtual supply is provided to use in platform code. Signed-off-by: Guiming Zhuo <gmzhuo@gmail.com> Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
2011-04-19Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x_ethtool.c
2011-04-14ethtool: allow custom interval for physical identificationAllan, Bruce W
When physical identification of an adapter is done by toggling the mechanism on and off through software utilizing the set_phys_id operation, it is done with a fixed duration for both on and off states. Some drivers may want to set a custom duration for the on/off intervals. This patch changes the API so the return code from the driver's entry point when it is called with ETHTOOL_ID_ACTIVE can specify the frequency at which to cycle the on/off states, and updates the drivers that have already been converted to use the new set_phys_id and use the synchronous method for identifying an adapter. The physical identification frequency set in the updated drivers is based on how it was done prior to the introduction of set_phys_id. Compile tested only. Also fixes a compiler warning in sfc. v2: drivers do not return -EINVAL for ETHOOL_ID_ACTIVE v3: fold patchset into single patch and cleanup per Ben's feedback Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com> Cc: Ajit Khaparde <ajit.khaparde@emulex.com> Cc: Michael Chan <mchan@broadcom.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: Divy Le Ray <divy@chelsio.com> Cc: Don Fry <pcnet32@frontier.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Steve Hodgson <shodgson@solarflare.com> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Matt Carlson <mcarlson@broadcom.com> Acked-by: Jon Mason <jdmason@kudzu.us> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14usbnet: Fix up 'FLAG_POINTTOPOINT' and 'FLAG_MULTI_PACKET' overlaps.huajun li
USB tethering does not work anymore since 2.6.39-rc2, but it's okay in -rc1. The root cause is the new added mask code 'FLAG_POINTTOPOINT' overlaps 'FLAG_MULTI_PACKET' in include/linux/usb/usbnet.h, this causes logic issue in rx_process(). This patch cleans up the overlap. Reported-and-Tested-by: Gottfried Haider <gottfried.haider@gmail.com> Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13net: allow shifted access in smsc911x V2Mathieu J. Poirier
This is a revised patch that permits a shifted access to the LAN9221 registers. More specifically: It adds a shift parameter in the platform_data. It introduces an ops in smsc911x_data. A choice of access function to use at run-time. Four new shifted access function. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13rndis_host: Poll status before control channel where necessaryBen Hutchings
Some RNDIS devices don't respond on the control channel until polled on the status channel. In particular, this was reported to be the case for the 2Wire HomePortal 1000SW and for some Windows Mobile devices. This is roughly based on a patch by John Carr <john.carr@unrouted.co.uk> which is currently applied by Mandriva. Reported-by: Mark Glassberg <vzeeaxwl@myfairpoint.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13net: ethtool support to configure number of channelsamit salecha
Ethtool support to configure RX, TX and other channels. combined field in struct ethtool_channels to reflect set of channel (RX, TX or other). Other channel can be link interrupts, SR-IOV coordination etc. ETHTOOL_GCHANNELS will report max and current number of RX channels, max and current number of TX channels, max and current number of other channel or max and current number of combined channel. Number of channel can be modify upto max number of channel through ETHTOOL_SCHANNELS command. Ben Hutchings: o define 'combined' and 'other' types. Most multiqueue drivers pair up RX and TX queues so that most channels combine RX and TX work. o Please could you use a kernel-doc comment to describe the structure. Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13netfilter: ipset: SCTP, UDPLITE support addedJozsef Kadlecsik
SCTP and UDPLITE port support added to the hash:*port* set types. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-12net: Missing 'inline' in vlan-disabled vlan_untag()David S. Miller
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2011-04-12net: vlan_features comment clarificationMichał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12net: vlan: make non-hw-accel rx path similar to hw-accelJiri Pirko
Now there are 2 paths for rx vlan frames. When rx-vlan-hw-accel is enabled, skb is untagged by NIC, vlan_tci is set and the skb gets into vlan code in __netif_receive_skb - vlan_hwaccel_do_receive. For non-rx-vlan-hw-accel however, tagged skb goes thru whole __netif_receive_skb, it's untagged in ptype_base hander and reinjected This incosistency is fixed by this patch. Vlan untagging happens early in __netif_receive_skb so the rest of code (ptype_all handlers, rx_handlers) see the skb like it was untagged by hw. Signed-off-by: Jiri Pirko <jpirko@redhat.com> v1->v2: remove "inline" from vlan_core.c functions Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12{mac|nl}80211: Add station connected timeMohammed Shafi Shajakhan
Add station connected time in debugfs. This will be helpful to get a measure of stability of the connection and for debugging stress issues Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12nl80211: New notification to discover mesh peer candidates.Javier Cardona
Notify userspace when a beacon/presp is received from a suitable mesh peer candidate for whom no sta information exists. Userspace can then decide to create a sta info for the candidate. If userspace is not ready to authenticate the peer right away, it can create the sta info with the authenticated flag unset and set it later. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12nl80211/mac80211: let userspace authenticate stationsJavier Cardona
Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12cfg80211/nl80211: Add userspace authentication flag to mesh setupJavier Cardona
During mesh setup, use NL80211_MESH_SETUP_USERSPACE_AUTH flag to create a secure mesh and route management frames to userspace. Also, NL80211_CMD_GET_WIPHY now returns a flag NL80211_SUPPORT_MESH_AUTH if the wiphy's mesh implementation supports routing of mesh auth frames to userspace. This is useful for forward compatibility between old kernels and new userspace tools. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12nl80211: rename NL80211_MESH_SETUP_VENDOR_PATH_SEL_IEJavier Cardona
To NL80211_MESH_SETUP_IE. This reflects our ability to insert any ie into a mesh beacon, not simply path selection ies. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/ath/ar9170/main.c drivers/net/wireless/ath/ar9170/phy.c drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
2011-04-11Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smsc911x.c
2011-04-11v3 ethtool: add ntuple flow specifier data to network flow classifierAlexander Duyck
This change is meant to add an ntuple data extensions to the rx network flow classification specifiers. The idea is to allow ntuple to be displayed via the network flow classification interface. The first patch had some left over stuff from the original flow extension flags I had added. That bit is removed in this patch. The second had some left over comments that stated we ignored bits in the masks when we actually match them. This work is based on input from Ben Hutchings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits) net: Add support for SMSC LAN9530, LAN9730 and LAN89530 mlx4_en: Restoring RX buffer pointer in case of failure mlx4: Sensing link type at device initialization ipv4: Fix "Set rt->rt_iif more sanely on output routes." MAINTAINERS: add entry for Xen network backend be2net: Fix suspend/resume operation be2net: Rename some struct members for clarity pppoe: drop PPPOX_ZOMBIEs in pppoe_flush_dev dsa/mv88e6131: add support for mv88e6085 switch ipv6: Enable RFS sk_rxhash tracking for ipv6 sockets (v2) be2net: Fix a potential crash during shutdown. bna: Fix for handling firmware heartbeat failure can: mcp251x: Allow pass IRQ flags through platform data. smsc911x: fix mac_lock acquision before calling smsc911x_mac_read iwlwifi: accept EEPROM version 0x423 for iwl6000 rt2x00: fix cancelling uninitialized work rtlwifi: Fix some warnings/bugs p54usb: IDs for two new devices wl12xx: fix potential buffer overflow in testmode nvs push zd1211rw: reset rx idle timer from tasklet ...
2011-04-07Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/benet/be_main.c
2011-04-07Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/rtlwifi/efuse.c drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c net/bluetooth/mgmt.c
2011-04-07nl80211: Add BSS parameters to stationPaul Stewart
This allows user-space monitoring of BSS parameters for the associated station. This is useful for debugging and verifying that the paramaters are as expected. [Exactly the same as before but bundled into a single message] Signed-off-by: Paul Stewart <pstew@chromium.org> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
2011-04-06Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next-2.6
2011-04-06can: mcp251x: Allow pass IRQ flags through platform data.Enric Balletbo i Serra
When an interrupt occurs, the INT pin is driven low by the MCP251x controller (falling edge) but in some cases the INT pin can be connected to the MPU through a transistor or level translator which inverts this signal. In this case interrupt should be configured in rising edge. This patch adds support to pass the IRQ flags via mcp251x_platform_data. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block: ide: always ensure that blk_delay_queue() is called if we have pending IO block: fix request sorting at unplug dm: improve block integrity support fs: export empty_aops ide: ide_requeue_and_plug() reinstate "always plug" behaviour blk-throttle: don't call xchg on bool ufs: remove unessecary blk_flush_plug block: make the flush insertion use the tail of the dispatch list block: get rid of elv_insert() interface block: dump request state on seeing a corrupted request completion
2011-04-05dm: improve block integrity supportMike Snitzer
The current block integrity (DIF/DIX) support in DM is verifying that all devices' integrity profiles match during DM device resume (which is past the point of no return). To some degree that is unavoidable (stacked DM devices force this late checking). But for most DM devices (which aren't stacking on other DM devices) the ideal time to verify all integrity profiles match is during table load. Introduce the notion of an "initialized" integrity profile: a profile that was blk_integrity_register()'d with a non-NULL 'blk_integrity' template. Add blk_integrity_is_initialized() to allow checking if a profile was initialized. Update DM integrity support to: - check all devices with _initialized_ integrity profiles match during table load; uninitialized profiles (e.g. for underlying DM device(s) of a stacked DM device) are ignored. - disallow a table load that would result in an integrity profile that conflicts with a DM device's existing (in-use) integrity profile - avoid clearing an existing integrity profile - validate all integrity profiles match during resume; but if they don't all we can do is report the mismatch (during resume we're past the point of no return) Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-05fs: export empty_aopsJens Axboe
With the ->sync_page() hook gone, we have a few users that add their own static address_space_operations without any functions defined. fs/inode.c already has an empty_aops that it uses for init purposes. Lets export that and use it in the places where an otherwise empty aops was defined. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-05block: get rid of elv_insert() interfaceJens Axboe
Merge it with __elv_add_request(), it's pretty pointless to have a function with only two callers. The main interface is elv_add_request()/__elv_add_request(). Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-04-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) ipv6: Don't pass invalid dst_entry pointer to dst_release(). mlx4: fix kfree on error path in new_steering_entry() tcp: len check is unnecessarily devastating, change to WARN_ON sctp: malloc enough room for asconf-ack chunk sctp: fix auth_hmacs field's length of struct sctp_cookie net: Fix dev dev_ethtool_get_rx_csum() for forced NETIF_F_RXCSUM usbnet: use eth%d name for known ethernet devices starfire: clean up dma_addr_t size test iwlegacy: fix bugs in change_interface carl9170: Fix tx aggregation problems with some clients iwl3945: disable hw scan by default wireless: rt2x00: rt2800usb.c add and identify ids iwl3945: do not deprecate software scan mac80211: fix aggregation frame release during timeout cfg80211: fix BSS double-unlinking (continued) cfg80211:: fix possible NULL pointer dereference mac80211: fix possible NULL pointer dereference mac80211: fix NULL pointer dereference in ieee80211_key_alloc() ath9k: fix a chip wakeup related crash in ath9k_start mac80211: fix a crash in minstrel_ht in HT mode with no supported MCS rates ...
2011-04-05ethtool: Change ETHTOOL_PHYS_ID implementation to allow dropping RTNLBen Hutchings
The ethtool ETHTOOL_PHYS_ID command runs for an arbitrarily long period of time, holding the RTNL lock. This blocks routing updates, device enumeration, and various important operations that one might want to keep running while hunting for the flashing LED. We need to drop the RTNL lock during this operation, but currently the core implementation is a thin wrapper around a driver operation and drivers may well depend upon holding the lock. Define a new driver operation 'set_phys_id' with an argument that sets the ID indicator on/off/inactive/active (the last optional, for any driver or firmware that prefers to handle blinking asynchronously). When this is defined, the ethtool core drops the lock while waiting and only acquires it around calls to this operation. Deprecate the 'phys_id' operation in favour of this. It can be removed once all in-tree drivers are converted. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-05ethtool: Fill out and update comment for struct ethtool_opsBen Hutchings
Briefly document all operations (except get_rx_ntuple), including whether they may return an error code and whether they are deprecated. Also mention some things that should be handled by the ethtool core rather than by drivers. Briefly document general requirements for callers. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-05ethtool: Convert struct ethtool_ops comment to kernel-doc formatBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-04net: Allow no-cache copy from user on transmitTom Herbert
This patch uses __copy_from_user_nocache on transmit to bypass data cache for a performance improvement. skb_add_data_nocache and skb_copy_to_page_nocache can be called by sendmsg functions to use this feature, initial support is in tcp_sendmsg. This functionality is configurable per device using ethtool. Presumably, this feature would only be useful when the driver does not touch the data. The feature is turned on by default if a device indicates that it does some form of checksum offload; it is off by default for devices that do no checksum offload or indicate no checksum is necessary. For the former case copy-checksum is probably done anyway, in the latter case the device is likely loopback in which case the no cache copy is probably not beneficial. This patch was tested using 200 instances of netperf TCP_RR with 1400 byte request and one byte reply. Platform is 16 core AMD x86. No-cache copy disabled: 672703 tps, 97.13% utilization 50/90/99% latency:244.31 484.205 1028.41 No-cache copy enabled: 702113 tps, 96.16% utilization, 50/90/99% latency 238.56 467.56 956.955 Using 14000 byte request and response sizes demonstrate the effects more dramatically: No-cache copy disabled: 79571 tps, 34.34 %utlization 50/90/95% latency 1584.46 2319.59 5001.76 No-cache copy enabled: 83856 tps, 34.81% utilization 50/90/95% latency 2508.42 2622.62 2735.88 Note especially the effect on latency tail (95th percentile). This seems to provide a nice performance improvement and is consistent in the tests I ran. Presumably, this would provide the greatest benfits in the presence of an application workload stressing the cache and a lot of transmit data happening. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-04ssb: trivial: use u8 for chip_rev (it's mask is 0xF)Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04ieee80211: add HT extended capabilities masksBing Zhao
IEEE Std 802.11n, Oct. 29, 2009: 7.3.2.56.5 HT Extended Capabilities field Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04pkt_sched: QFQ - quick fair queue schedulerstephen hemminger
This is an implementation of the Quick Fair Queue scheduler developed by Fabio Checconi. The same algorithm is already implemented in ipfw in FreeBSD. Fabio had an earlier version developed on Linux, I just cleaned it up. Thanks to Eric Dumazet for testing this under load. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-04Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-04-04Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, UV: Fix kdump reboot x86, amd-nb: Rename CPU PCI id define for F4 sound: Add delay.h to sound/soc/codecs/sn95031.c x86, mtrr, pat: Fix one cpu getting out of sync during resume x86, microcode: Unregister syscore_ops after microcode unloaded x86: Stop including <linux/delay.h> in two asm header files
2011-04-04Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Fix task_struct reference leak perf: Fix task context scheduling perf: mmap 512 kiB by default perf: Rebase max unprivileged mlock threshold on top of page size perf tools: Fix NO_NEWT=1 python build error perf symbols: Properly align symbol_conf.priv_size perf tools: Emit clearer message for sys_perf_event_open ENOENT return perf tools: Fixup exit path when not able to open events perf symbols: Fix vsyscall symbol lookup oprofile, x86: Allow setting EDGE/INV/CMASK for counter events
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