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2012-04-26tcp repair: Fix unaligned access when repairing options (v2)Pavel Emelyanov
Don't pick __u8/__u16 values directly from raw pointers, but instead use an array of structures of code:value pairs. This is OK, since the buffer we take options from is not an skb memory, but a user-to-kernel one. For those options which don't require any value now, require this to be zero (for potential future extension of this API). v2: Changed tcp_repair_opt to use two __u32-s as spotted by David Laight. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-266lowpan: duplicate definition of IEEE802154_ALENalex.bluesman.smirnov@gmail.com
The same macros is defined in 'include/net/af_ieee802154.h' and is called IEEE802154_ADDR_LEN. No need another one, so remove it. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-266lowpan: move frame allocation code to a separate functionalex.bluesman.smirnov@gmail.com
Separate frame allocation routine from data processing function. This makes code more human readable and easier for understanding. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Added support for fragmentation of E1 interfaces of hfcmulti driver.Andreas Eversberg
Fragmentation is usefull if multiple devices are connected to an E1 interface. Each fragment will have a subset of the available timeslots. These devices require a cascde connection or a multiplexer. Signed-off-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Rework of LED status display for HFC-4S/8S/E1 cards.Andreas Eversberg
LEDs will show RED if layer 1 is disabled or fails. LEDs will show GREEN if layer 1 is active. LEDs will blink if traffic on D-channel. Signed-off-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Using FLG_ACTIVE flag to determine if layer 1 is active or not.Andreas Eversberg
We already have the flag for L1 active, so we should use it. L2 will be solved in a later patch. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Fixed false interruption of audio during bridging change.Andreas Eversberg
Transmitted audio data was interrupted if a bridge was enabled or disabled. Now transmission seamlessly continues during that action. Fix in hfcmulti.ko Signed-off-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: refine start/enable code for MAC moduleHuang, Xiong
merge TXQ/RXQ/MAC start/enable code to one function as they are started/enabled at the same time, just like stop/disable them in the function of atl1c_stop_mac. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: add function atl1c_power_savingHuang, Xiong
This function is used for suspend of S1/S3/S4 and driver remove. It sets MAC/PHY based on the WoL configuation to get lower power consumption. atl1c_phy_power_saving is renamed to atl1c_phy_to_ps_link, this function is just make PHY enter a link/speed mode to eat less power. REG_MAC_CTRL register is refined as well. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: remove PHY reset/init for link down eventHuang, Xiong
it's unnecessary to reset/init phy when link down. Only L1/L2 chip (supported by atlx) need such action. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: update PHY reset related routineHuang, Xiong
Many magic data are re-configured for PHY during its reset operation based on chip type to get better compability and stability. REG_PHY_CTRL register may be configured by BIOS before enter OS. so, the driver can't directly write to it without any Read-Op. this change also affect suspend and phy_disable routines. PHY debug ports and extension registers are refined as well. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: remove PHY polling from atl1c_openHuang, Xiong
PHY polling code for FPGA is considered in every MDIO R/W API. no need to add additional code to atl1c_open. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: refine SERDES-clock related codeHuang, Xiong
bit 17/18 of reg1424 must be clear for l2cb 1.x, or it will cause the write-reg operation fail without cable connected. so, please do connect the cable when apply this patch to the driver to make sure these 2bits are cleared by new driver. The revised code is move to al1c_reset_mac. SERDES register definition is refined as well. when do reset MAC, speed/duplex control right should be transferred to software before do PHY auto-neg -- by bit MASTER_CTRL_SPEED_MODE_SW. SERDES register definition is refined as well. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: remove PHY contrl in atl1c_reset_pcieHuang, Xiong
atl1c_reset_phy follows atl1c_reset_pcie in the whole driver, so, it's unnecessary to add PHY control code in atl1c_reset_pcie. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: refine phy-register read/write functionHuang, Xiong
phy register is read/write via MDIO control module --- that module will be affected by the hibernate status, to access phy regs in hib stutus, slow frequency clk must be selected. To access phy extension register, the MDIO related registers are refined/updated, a _core function is re-wroted for both regular PHY regs and extension regs. existing PHY r/w function is revised based on the _core. PHY extension registers will be used for the comming patches. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26atl1c: remove REG_PHY_STATUSHuang, Xiong
this register is used for l1e(dev=1026) l1c/l1d/l2cb don't use it. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix FW download for BEPadmanabh Ratnakar
Skip flashing a FW component if that component is not present in a particular FW UFI image. Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix wrong status getting returned for MCC commandsPadmanabh Ratnakar
MCC Response CQEs are processed as part of NAPI poll routine and also synchronously. If MCC completions are consumed by NAPI poll routine, wrong status is returned to synchronously waiting routine. Fix this by getting status of MCC command from command response instead of response CQEs. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix Lancer statisticsPadmanabh Ratnakar
Fix port num sent in command to get stats. Also skip unnecessary parsing of stats for Lancer. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix traffic stall INTx modePadmanabh Ratnakar
EQ is getting armed wrongly in INTx mode as INTx interrupt is taking some time to deassert. This can cause another interrupt while NAPI is scheduled and scheduling a NAPI in interrupt does not take effect. This causes interrupt to be missed and traffic stalls. Fixing this by preventing wrong arming of EQ. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix ethtool self test for LancerPadmanabh Ratnakar
Lancer does not support DDR self test. Fix ethtool self test by skipping this test for Lancer. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix FW download in LancerPadmanabh Ratnakar
Increase time given by driver to adapter for completing FW download to 30 seconds. Also return correct status when FW download times out. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26be2net: Fix VLAN/multicast packet receptionPadmanabh Ratnakar
VLAN and multicast hardware filters are limited and can get exhausted in adapters with many PCI functions. If setting a VLAN or multicast filter fails due to lack of sufficient hardware resources, these packets get dropped. Fix this by switching to VLAN or multicast promiscous mode so that these packets are not dropped. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: DSP scheduling fix (version 2)Karsten Keil
dsp_spl_jiffies need to be the same datatype as jiffies (which is ulong). If not, on 64 bit systems it will fallback to schedule the DSP every jiffie tic as soon jiffies become > 2^32. Signed-off-by: Karsten Keil <kkeil@linux-pingi.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Fix division by zeroKarsten Keil
If DTMF debug is set and tresh goes under 100, the printk will cause a division by zero. Signed-off-by: Karsten Keil <kkeil@linux-pingi.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Fixed hardware bridging/conference check routine of mISDN_dsp.ko.Andreas Eversberg
In some cases the hardware bridging/conference (2-n parties) was selected, but still pure software bridging/conference was used. Signed-off-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26mISDN: Fix NULL pointer bug in if-condition of mISDN_dspAndreas Eversberg
Fix a bug (was introduced by a cut & paste error) in cases when dsp->conf was NULL. Signed-off-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25net: sock_diag_handler structs can be constShan Wei
read only, so change it to const. Signed-off-by: Shan Wei <davidshan@tencent.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25ipv6: call consume_skb() in frag/reassemblyEric Dumazet
Some kfree_skb() calls should be replaced by consume_skb() to avoid drop_monitor/dropwatch false positives. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25net: dcb: add CEE notify callsJohn Fastabend
This adds code to trigger CEE events when an APP change or setall command is made from user space. This simplifies user space code significantly by creating a single interface to listen on that works with both firmware and userland agents. And if we end up with multiple agents this keeps every thing in sync userland agents, firmware agents, and kernel notifier consumers. For an example agent that listens for these events see: https://github.com/jrfastab/cgdcbxd cgdcbxd is a daemon used to monitor DCB netlink events and manage the net_prio control group sub-system. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24tipc: remove inline instances from C source files.Paul Gortmaker
Untie gcc's hands and let it do what it wants within the individual source files. There are two files, node.c and port.c -- only the latter effectively changes (gcc-4.5.2). Objdump shows gcc deciding to not inline port_peernode(). Suggested-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24af_netlink: drop_monitor/dropwatch friendlyEric Dumazet
Need to consume_skb() instead of kfree_skb() in netlink_dump() and netlink_unicast_kernel() to avoid false dropwatch positives. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24af_netlink: cleanupsEric Dumazet
netlink_destroy_callback() move to avoid forward reference CodingStyle cleanups Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24net: skb_can_coalesce returns a booleanEric Dumazet
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23tcp: tcp_try_coalesce returns a booleanEric Dumazet
This clarifies code intention, as suggested by David. Suggested-by: David Miller <davem@davemloft.net> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net: make spd_fill_page() linear argument a boolEric Dumazet
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net: Use bool and remove inline in skb_splice_bits() code.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net: speedup skb_splice_bits()Eric Dumazet
Commit 35f3d14db (pipe: add support for shrinking and growing pipes) added a slowdown for splice(socket -> pipe), as we might grow the spd used in skb_splice_bits() for each skb we process in splice() syscall. Its not needed since skb lengths are capped. The default on-stack arrays are more than enough. Use MAX_SKB_FRAGS instead of PIPE_DEF_BUFFERS to describe the reasonable limit per skb. Add coalescing support to help splicing of GRO skbs built from linear skbs (linked into frag_list) Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23Merge branch 'rc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull build system failure fix from Michal Marek: "This fixes build failure with newer gcc that adds some internal symbols that end in "__mod_*_device_table", but are not actually the tables themselves." * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Fix modpost failures in fedora 17
2012-04-23tcp: introduce tcp_try_coalesceEric Dumazet
commit c8628155ece3 (tcp: reduce out_of_order memory use) took care of coalescing tcp segments provided by legacy devices (linear skbs) We extend this idea to fragged skbs, as their truesize can be heavy. ixgbe for example uses 256+1024+PAGE_SIZE/2 = 3328 bytes per segment. Use this coalescing strategy for receive queue too. This contributes to reduce number of tcp collapses, at minimal cost, and reduces memory overhead and packets drops. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23bnx2x: Update driver version to 1.72.50-0Barak Witkowski
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>
2012-04-23bnx2x: remove gro workaroundDmitry Kravkov
Removes GRO workaround, as issue is fixed in FW 7.2.51. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> 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>
2012-04-23bnx2x: add afex supportBarak Witkowski
Following patch adds afex multifunction support to the driver (afex multifunction is based on vntag header) and updates FW version used to 7.2.51. Support includes the following: 1. Configure vif parameters in firmware (default vlan, vif id, default priority, allowed priorities) according to values received from NIC. 2. Configure FW to strip/add default vlan according to afex vlan mode. 3. Notify link up to OS only after vif is fully initialized. 4. Support vif list set/get requests and configure FW accordingly. 5. Supply afex statistics upon request from NIC. 6. Special handling to L2 interface in case of FCoE vif. 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>
2012-04-23mlx4_en: Byte Queue Limit supportYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23mlx4_en: Moving to Interrupts for TX completionsYevgeny Petrilin
Moving to interrupts instead of polling fpr TX completions Avoiding situations where skb can be held in by the driver for a long time (till timer expires). The change is also necessary for supporting BQL. Removing comp_lock that was required because we could handle TX completions from several contexts: Interrupts, timer, polling. Now there is only interrupts Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23mlx4_en: Added Ethtool support for TX Interrupt coalescingYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23tcp: sk_add_backlog() is too agressive for TCPEric Dumazet
While investigating TCP performance problems on 10Gb+ links, we found a tcp sender was dropping lot of incoming ACKS because of sk_rcvbuf limit in sk_add_backlog(), especially if receiver doesnt use GRO/LRO and sends one ACK every two MSS segments. A sender usually tweaks sk_sndbuf, but sk_rcvbuf stays at its default value (87380), allowing a too small backlog. A TCP ACK, even being small, can consume nearly same truesize space than outgoing packets. Using sk_rcvbuf + sk_sndbuf as a limit makes sense and is fast to compute. Performance results on netperf, single flow, receiver with disabled GRO/LRO : 7500 Mbits instead of 6050 Mbits, no more TCPBacklogDrop increments at sender. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net: add a limit parameter to sk_add_backlog()Eric Dumazet
sk_add_backlog() & sk_rcvqueues_full() hard coded sk_rcvbuf as the memory limit. We need to make this limit a parameter for TCP use. No functional change expected in this patch, all callers still using the old sk_rcvbuf limit. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23net ax25: Fix the build when sysctl support is disabled.Eric W. Biederman
Randy Dunlap <rdunlap@xenotime.net> reported: > On 04/23/2012 12:07 AM, Stephen Rothwell wrote: > >> Hi all, >> >> Changes since 20120420: > > > include/net/ax25.h:447:75: error: expected ';' before '}' token > > static inline int ax25_register_dev_sysctl(ax25_dev *ax25_dev) { return 0 }; > static inline void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev) {}; > > First function: move ';' inside braces. > Second function: drop the ';'. Put the semicolons where it makes sense. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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