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2012-06-21team: do RCU update path fixupsJiri Pirko2-6/+16
Use rcu_access_pointer and rcu_dereference_protected to access RCU pointer by updater. Use RCU_INIT_POINTER for NULL assignment of RCU pointer. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-21team: Revert previous two changes.David S. Miller2-11/+6
I didn't notice that these were superceded by a more uptodate version of the changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-21team: use RCU_INIT_POINTER for NULL assignment of RCU pointerJiri Pirko1-1/+1
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-21team: use rcu_access_pointer to access RCU pointer by writerJiri Pirko2-5/+10
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-21can: c_can_pci: fix compilation on non HAVE_CLK archsMarc Kleine-Budde1-22/+7
In commit: 5b92da0 c_can_pci: generic module for C_CAN/D_CAN on PCI the c_can_pci driver has been added. It uses clk_*() functions resulting in a link error on archs without clock support. This patch removed these clk_() functions as these parts of the driver are not tested. Cc: Federico Vaga <federico.vaga@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20ipv4: Early TCP socket demux.David S. Miller10-24/+110
Input packet processing for local sockets involves two major demuxes. One for the route and one for the socket. But we can optimize this down to one demux for certain kinds of local sockets. Currently we only do this for established TCP sockets, but it could at least in theory be expanded to other kinds of connections. If a TCP socket is established then it's identity is fully specified. This means that whatever input route was used during the three-way handshake must work equally well for the rest of the connection since the keys will not change. Once we move to established state, we cache the receive packet's input route to use later. Like the existing cached route in sk->sk_dst_cache used for output packets, we have to check for route invalidations using dst->obsolete and dst->ops->check(). Early demux occurs outside of a socket locked section, so when a route invalidation occurs we defer the fixup of sk->sk_rx_dst until we are actually inside of established state packet processing and thus have the socket locked. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20inet: Sanitize inet{,6} protocol demux.David S. Miller9-47/+36
Don't pretend that inet_protos[] and inet6_protos[] are hashes, thay are just a straight arrays. Remove all unnecessary hash masking. Document MAX_INET_PROTOS. Use RAW_HTABLE_SIZE when appropriate. Reported-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20net: qmi_wwan: use module_usb_driver macroBjørn Mork1-11/+1
Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20net: qmi_wwan: shorten driver descriptionBjørn Mork1-2/+2
The description is used in ethtool fixed length fields. Make it shorter to avoid truncation. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20net: qmi_wwan: bind to both control and data interfaceBjørn Mork1-68/+63
Always bind to control interface regardless of whether it is a shared interface or not. A QMI/wwan function is required to provide both a control interface (QMI) and a data interface (wwan). All devices supported by this driver do so. But the vendors may choose to use different USB descriptor layouts, and some vendors even allow the same device to present different layouts. Most of these devices use a USB descriptor layout with a single USB interface for both control and data. But some split control and data into two interfaces, bound together by a CDC Union descriptor on the control interface. Before the cdc-wdm subdriver support was added, this split was used to let cdc-wdm drive the QMI control interface and qmi_wwan drive the wwna data interface. This split driver model has a number of issues: - qmi_wwan must match on the data interface descriptor, which often are indistiguishable from data interfaces belonging to other CDC (like) functions like ACM - supporting a single QMI/wwan function requires adding the device to two drivers - syncronizing the probes among a number of drivers, to ensure selecting the correct driver, is difficult unless all drivers match on the same interface This patch resolves these problems by using the same probing mechanism as cdc-ether for devices with a two- interface USB descriptor layout. This makes the driver behave consistently, supporting both the control and data part of the QMI/wwan function, regardless of the USB descriptors. Cc: Thomas Schäfer <tschaefer@t-online.de> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20net: qmi_wwan: rearranging to prepare for code sharingBjørn Mork1-52/+76
Most of the subdriver registration code can be reused for devices with separate control and data interfaces. Move the code a bit around to prepare for such reuse. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20net: qmi_wwan: define a structure for driver specific stateBjørn Mork1-20/+29
usbnet allocates a fixed size array for minidriver specific state. Naming the fields and taking advantage of type checking is a bit more failsafe than casting array elements each time they are referenced. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: use rcu_dereference_bh() in tx pathJiri Pirko2-4/+4
Should be used instead of rcu_dereference, since rcu_read_lock_bh is held. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: allow to send multiple set events in one messageJiri Pirko1-24/+9
When multiple sets are done, event message is generated for each. This patch accumulates these messages into one. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: ensure correct order of netlink messages deliveryJiri Pirko1-20/+5
currently, when port is created and per-port options are present, there options are sent to userspace with ifindex of port which userspace does not know about. Port add message goes right after. This patch corrects message ordering so userspace would not be confused. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: implement multipart netlink messages for options transfersJiri Pirko1-82/+116
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: lb: introduce infrastructure for userspace driven tx loadbalancingJiri Pirko1-17/+500
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: add port_[enabled/disabled] mode callbacksJiri Pirko2-0/+6
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: pass NULL to __team_option_inst_add() instead of 0Jiri Pirko1-1/+1
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: allow to specify one option instance to be send to userspaceJiri Pirko1-86/+124
No need to walk through option instance list and look for ->changed == true when called knows exactly what one option instance changed. Also use lists to pass option instances needed to be present in netlink message. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: fix error path in team_nl_fill_port_list_get()Jiri Pirko1-1/+1
genlmsg_cancel() needs to be called in case nest fails Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: fix error path in team_nl_fill_options_get()Jiri Pirko1-1/+1
genlmsg_cancel() needs to be called in case nest fails Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: allow async option changesJiri Pirko2-0/+21
This patch adds two exported functions. One allows to mark option instance as changed and the second processes change check and does transfer of changed options to userspace. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: push array_index and port into separate structureJiri Pirko2-27/+50
Introduce struct team_option_inst_info and push option instance info there. It can be then easily passed to gsetter context and used for feature async option changes. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: comments: s/net\/drivers\/team/drivers\/net\/team/Jiri Pirko3-3/+3
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: introduce array optionsJiri Pirko2-23/+55
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: allow read/write-only optionsJiri Pirko1-0/+4
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: lb: push hash counting into separate functionJiri Pirko1-7/+16
Also squash hash into one byte Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: add mode priv to portJiri Pirko2-1/+4
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: for nomode use dummy struct team_modeJiri Pirko1-8/+21
That leaves team->mode and all its values valid so no checks would be needed (for example in team_mode_option_get()). Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20team: make team_mode struct constJiri Pirko5-23/+43
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20Merge branch 'master' of git://gitorious.org/linux-can/linux-can-nextDavid S. Miller13-64/+664
Marc Kleine-Budde says: ==================== here is our second pull request for net-next. In this series Federico Vaga adds a pci driver for c_can/d_can hardware using the existing generic c_can driver. The remaining 6 patches are by Oliver Hartkopp. He adds CANFD support to the CAN stack while keeping binary compatibility for existing applications. CANFD is an extension to the existing CAN standard, it allows longer CAN frames and/or higher data rates. There's no real hardware available yet, but this series adds CANFD support to the vcan driver. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20Merge branch 'for-davem' of ↵David S. Miller86-2966/+4743
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John Linville says: ==================== This is a sizeable batch of updates intended for 3.6... The bulk of the changes here are Bluetooth. Gustavo says: Here goes the first Bluetooth pull request for 3.6, we have queued quite a lot of work. Andrei Emeltchenko added the AMP Manager code, a lot of work is needed, but the first bit are already there. This code is disabled by default. Mat Martineau changed the whole L2CAP ERTM state machine code, replacing the old one with a new implementation. Besides that we had lot of coding style fixes (to follow net rules), more l2cap core separation from socket and many clean ups and fixed all over the tree. Along with the above, there is a healthy dose of ath9k, iwlwifi, and other driver updates. There is also another pull from the wireless tree to resolve some merge issues. I also fixed-up some merge discrepencies between net-next and wireless-next. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Change date and version to 1.72.51-0Merav Sicron1-2/+2
This change updates the date and version of the bnx2x driver. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Support DCBX for all functionsBarak Witkowski7-12/+31
In multi-function device, allow configuring dcbx admin params from all drivers on a single physical port. Signed-off-by: Barak Witkowski <barak@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Add support for ethtool -LMerav Sicron5-12/+100
Add support for ethtool -L/-l for setting and getting the number of RSS queues. The 'combined' field is used as we don't support separate IRQ for Rx and Tx. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Allow up to 63 RSS queuesMerav Sicron1-10/+3
This patch removed the limitation in the code for 16 RSS queues. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Split the FP structureBarak Witkowski6-87/+155
This patch moves some fields out of the FP structure to different structures, in order to minimize size of contigiuous memory allocated. Signed-off-by: Barak Witkowski <barak@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Move the CNIC L2 CIDs to be right after the RSS CIDsMerav Sicron4-30/+52
Currently the CNIC-related L2 CIDs (for sending control FCoE / iSCSI packets) were at fixed position, according to the maximal number of RSS queues multiplied by the number of traffic-classes. This change makes the CIDs dynamic, as they are defined to be right after the highest RSS CID. This decreases the memory allocated for the context. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Make the transmission queues adjacentMerav Sicron6-94/+139
In the current scheme the transmission queues of traffic-class 0 were 0-15, the transmission queues of traffic-class 1 were 16-31 and so on. If the number of RSS queues was smaller than 16, there were gaps in transmission queues numbering, as well as in CIDs numbering. This is both a waste (especially when 16 is increased to 64), and may causes problems with flushing queues when reducing the number of RSS queues (using ethtool -L). The new scheme eliminates the gaps. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Allow more than 64 L2 CIDsMerav Sicron2-20/+57
With increased number of RSS queues, each multiplied by the number of traffic- classes, we may have up to 64*3=192 CIDs. The current driver scheme with regard to context allocation supports only 64 CIDs. The new scheme enables scatter- gatehr list of pages for the context. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Add support for 4-tupple UDP RSSMerav Sicron5-15/+159
This change enables to control via ethtool whether to do UDP RSS on 2-tupple (IP source / destination only) or on 4-tupple (include UDP source / destination port). It also enables to read back the RSS configuration. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Return only online tests for MFMerav Sicron2-29/+62
1. In multi-function device, show only the online tests in self-test results as only these test are performed (offline tests cannot be performed as they may corrupt the traffic of other functions on the same physical port). Note that multi-function mode cannot change while the driver is up. 2. Check result code in NIC load and act accordingly. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-20bnx2x: Add support for external LBMerav Sicron4-9/+81
This change enables to do self-test with external loopback via ethtool. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-19canfd: update documentation according to CAN FD extensionsOliver Hartkopp1-8/+146
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-19vcan: add CAN FD supportOliver Hartkopp1-7/+20
- move the length calculation from dlc to real length (using canfd_frame) - allow to switch the driver between CAN and CAN FD (change of MTU) Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-19candev: add/update helpers for CAN FDOliver Hartkopp2-9/+59
- update sanity checks - add DLC to length conversion helpers - can_dlc2len() - get data length from can_dlc with sanitized can_dlc - can_len2dlc() - map the sanitized data length to an appropriate DLC Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-19canfd: add support for CAN FD in CAN_RAW socketsOliver Hartkopp2-5/+48
- introduce a new sockopt CAN_RAW_FD_FRAMES to allow CAN FD frames - handle CAN frames and CAN FD frames simultaneously when enabled Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-19canfd: add support for CAN FD in PF_CAN coreOliver Hartkopp2-29/+84
- handle ETH_P_CAN and ETH_P_CANFD skbuffs - update sanity checks for CAN and CAN FD - make sure the CAN frame can pass the selected CAN netdevice on send - bump core version and abi version to indicate the new CAN FD support Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-06-19canfd: add new data structures and constantsOliver Hartkopp3-6/+63
- add new struct canfd_frame - check identical element offsets in struct can_frame and struct canfd_frame - new ETH_P_CANFD definition to tag CAN FD skbs correctly - add CAN_MTU and CANFD_MTU definitions for easy frame and mode detection - add CAN[FD]_MAX_[DLC|DLEN] helper constants to remove hard coded values - update existing struct can_frame with helper constants and comments Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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